Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/sound/firewire/Kconfig b/sound/firewire/Kconfig
index 529d9f4..b0a904c 100644
--- a/sound/firewire/Kconfig
+++ b/sound/firewire/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
menuconfig SND_FIREWIRE
bool "FireWire sound devices"
depends on FIREWIRE
@@ -41,6 +42,7 @@
* Mackie(Loud) U.420/U.420d
* TASCAM FireOne
* Stanton Controllers & Systems 1 Deck/Mixer
+ * APOGEE duet FireWire
To compile this driver as a module, choose M here: the module
will be called snd-oxfw.
@@ -147,7 +149,9 @@
help
Say Y here to enable support for FireWire devices which MOTU produced:
* 828mk2
+ * Traveler
* 828mk3
+ * Audio Express
To compile this driver as a module, choose M here: the module
will be called snd-firewire-motu.
@@ -159,5 +163,7 @@
help
Say Y here to include support for RME fireface series.
* Fireface 400
+ * Fireface 800
+ * Fireface UCX
endif # SND_FIREWIRE
diff --git a/sound/firewire/amdtp-am824.c b/sound/firewire/amdtp-am824.c
index 4210e5c..67d735e 100644
--- a/sound/firewire/amdtp-am824.c
+++ b/sound/firewire/amdtp-am824.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* AM824 format in Audio and Music Data Transmission Protocol (IEC 61883-6)
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
* Copyright (c) 2015 Takashi Sakamoto <o-takashi@sakamocchi.jp>
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include <linux/slab.h>
@@ -83,7 +82,7 @@
if (err < 0)
return err;
- s->fdf = AMDTP_FDF_AM824 | s->sfc;
+ s->ctx_data.rx.fdf = AMDTP_FDF_AM824 | s->sfc;
p->pcm_channels = pcm_channels;
p->midi_ports = midi_ports;
@@ -147,19 +146,24 @@
}
EXPORT_SYMBOL_GPL(amdtp_am824_set_midi_position);
-static void write_pcm_s32(struct amdtp_stream *s,
- struct snd_pcm_substream *pcm,
- __be32 *buffer, unsigned int frames)
+static void write_pcm_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm,
+ __be32 *buffer, unsigned int frames,
+ unsigned int pcm_frames)
{
struct amdtp_am824 *p = s->protocol;
+ unsigned int channels = p->pcm_channels;
struct snd_pcm_runtime *runtime = pcm->runtime;
- unsigned int channels, remaining_frames, i, c;
+ unsigned int pcm_buffer_pointer;
+ int remaining_frames;
const u32 *src;
+ int i, c;
- channels = p->pcm_channels;
+ pcm_buffer_pointer = s->pcm_buffer_pointer + pcm_frames;
+ pcm_buffer_pointer %= runtime->buffer_size;
+
src = (void *)runtime->dma_area +
- frames_to_bytes(runtime, s->pcm_buffer_pointer);
- remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
+ frames_to_bytes(runtime, pcm_buffer_pointer);
+ remaining_frames = runtime->buffer_size - pcm_buffer_pointer;
for (i = 0; i < frames; ++i) {
for (c = 0; c < channels; ++c) {
@@ -173,19 +177,24 @@
}
}
-static void read_pcm_s32(struct amdtp_stream *s,
- struct snd_pcm_substream *pcm,
- __be32 *buffer, unsigned int frames)
+static void read_pcm_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm,
+ __be32 *buffer, unsigned int frames,
+ unsigned int pcm_frames)
{
struct amdtp_am824 *p = s->protocol;
+ unsigned int channels = p->pcm_channels;
struct snd_pcm_runtime *runtime = pcm->runtime;
- unsigned int channels, remaining_frames, i, c;
+ unsigned int pcm_buffer_pointer;
+ int remaining_frames;
u32 *dst;
+ int i, c;
- channels = p->pcm_channels;
+ pcm_buffer_pointer = s->pcm_buffer_pointer + pcm_frames;
+ pcm_buffer_pointer %= runtime->buffer_size;
+
dst = (void *)runtime->dma_area +
- frames_to_bytes(runtime, s->pcm_buffer_pointer);
- remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
+ frames_to_bytes(runtime, pcm_buffer_pointer);
+ remaining_frames = runtime->buffer_size - pcm_buffer_pointer;
for (i = 0; i < frames; ++i) {
for (c = 0; c < channels; ++c) {
@@ -285,7 +294,7 @@
}
static void write_midi_messages(struct amdtp_stream *s, __be32 *buffer,
- unsigned int frames)
+ unsigned int frames, unsigned int data_block_counter)
{
struct amdtp_am824 *p = s->protocol;
unsigned int f, port;
@@ -294,7 +303,7 @@
for (f = 0; f < frames; f++) {
b = (u8 *)&buffer[p->midi_position];
- port = (s->data_block_counter + f) % 8;
+ port = (data_block_counter + f) % 8;
if (f < MAX_MIDI_RX_BLOCKS &&
midi_ratelimit_per_packet(s, port) &&
p->midi[port] != NULL &&
@@ -312,16 +321,20 @@
}
}
-static void read_midi_messages(struct amdtp_stream *s,
- __be32 *buffer, unsigned int frames)
+static void read_midi_messages(struct amdtp_stream *s, __be32 *buffer,
+ unsigned int frames, unsigned int data_block_counter)
{
struct amdtp_am824 *p = s->protocol;
- unsigned int f, port;
int len;
u8 *b;
+ int f;
for (f = 0; f < frames; f++) {
- port = (s->data_block_counter + f) % 8;
+ unsigned int port = f;
+
+ if (!(s->flags & CIP_UNALIGHED_DBC))
+ port += data_block_counter;
+ port %= 8;
b = (u8 *)&buffer[p->midi_position];
len = b[0] - 0x80;
@@ -332,44 +345,61 @@
}
}
-static unsigned int process_rx_data_blocks(struct amdtp_stream *s, __be32 *buffer,
- unsigned int data_blocks, unsigned int *syt)
+static unsigned int process_it_ctx_payloads(struct amdtp_stream *s,
+ const struct pkt_desc *descs,
+ unsigned int packets,
+ struct snd_pcm_substream *pcm)
{
struct amdtp_am824 *p = s->protocol;
- struct snd_pcm_substream *pcm = READ_ONCE(s->pcm);
- unsigned int pcm_frames;
+ unsigned int pcm_frames = 0;
+ int i;
- if (pcm) {
- write_pcm_s32(s, pcm, buffer, data_blocks);
- pcm_frames = data_blocks * p->frame_multiplier;
- } else {
- write_pcm_silence(s, buffer, data_blocks);
- pcm_frames = 0;
+ for (i = 0; i < packets; ++i) {
+ const struct pkt_desc *desc = descs + i;
+ __be32 *buf = desc->ctx_payload;
+ unsigned int data_blocks = desc->data_blocks;
+
+ if (pcm) {
+ write_pcm_s32(s, pcm, buf, data_blocks, pcm_frames);
+ pcm_frames += data_blocks * p->frame_multiplier;
+ } else {
+ write_pcm_silence(s, buf, data_blocks);
+ }
+
+ if (p->midi_ports) {
+ write_midi_messages(s, buf, data_blocks,
+ desc->data_block_counter);
+ }
}
- if (p->midi_ports)
- write_midi_messages(s, buffer, data_blocks);
-
return pcm_frames;
}
-static unsigned int process_tx_data_blocks(struct amdtp_stream *s, __be32 *buffer,
- unsigned int data_blocks, unsigned int *syt)
+static unsigned int process_ir_ctx_payloads(struct amdtp_stream *s,
+ const struct pkt_desc *descs,
+ unsigned int packets,
+ struct snd_pcm_substream *pcm)
{
struct amdtp_am824 *p = s->protocol;
- struct snd_pcm_substream *pcm = READ_ONCE(s->pcm);
- unsigned int pcm_frames;
+ unsigned int pcm_frames = 0;
+ int i;
- if (pcm) {
- read_pcm_s32(s, pcm, buffer, data_blocks);
- pcm_frames = data_blocks * p->frame_multiplier;
- } else {
- pcm_frames = 0;
+ for (i = 0; i < packets; ++i) {
+ const struct pkt_desc *desc = descs + i;
+ __be32 *buf = desc->ctx_payload;
+ unsigned int data_blocks = desc->data_blocks;
+
+ if (pcm) {
+ read_pcm_s32(s, pcm, buf, data_blocks, pcm_frames);
+ pcm_frames += data_blocks * p->frame_multiplier;
+ }
+
+ if (p->midi_ports) {
+ read_midi_messages(s, buf, data_blocks,
+ desc->data_block_counter);
+ }
}
- if (p->midi_ports)
- read_midi_messages(s, buffer, data_blocks);
-
return pcm_frames;
}
@@ -384,15 +414,14 @@
int amdtp_am824_init(struct amdtp_stream *s, struct fw_unit *unit,
enum amdtp_stream_direction dir, enum cip_flags flags)
{
- amdtp_stream_process_data_blocks_t process_data_blocks;
+ amdtp_stream_process_ctx_payloads_t process_ctx_payloads;
if (dir == AMDTP_IN_STREAM)
- process_data_blocks = process_tx_data_blocks;
+ process_ctx_payloads = process_ir_ctx_payloads;
else
- process_data_blocks = process_rx_data_blocks;
+ process_ctx_payloads = process_it_ctx_payloads;
return amdtp_stream_init(s, unit, dir, flags, CIP_FMT_AM,
- process_data_blocks,
- sizeof(struct amdtp_am824));
+ process_ctx_payloads, sizeof(struct amdtp_am824));
}
EXPORT_SYMBOL_GPL(amdtp_am824_init);
diff --git a/sound/firewire/amdtp-stream-trace.h b/sound/firewire/amdtp-stream-trace.h
index 54cdd4f..16c7f66 100644
--- a/sound/firewire/amdtp-stream-trace.h
+++ b/sound/firewire/amdtp-stream-trace.h
@@ -1,8 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* amdtp-stream-trace.h - tracepoint definitions to dump a part of packet data
*
* Copyright (c) 2016 Takashi Sakamoto
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#undef TRACE_SYSTEM
@@ -13,103 +13,16 @@
#include <linux/tracepoint.h>
-TRACE_EVENT(in_packet,
- TP_PROTO(const struct amdtp_stream *s, u32 cycles, u32 *cip_header, unsigned int payload_length, unsigned int index),
- TP_ARGS(s, cycles, cip_header, payload_length, index),
+TRACE_EVENT(amdtp_packet,
+ TP_PROTO(const struct amdtp_stream *s, u32 cycles, const __be32 *cip_header, unsigned int payload_length, unsigned int data_blocks, unsigned int data_block_counter, unsigned int index),
+ TP_ARGS(s, cycles, cip_header, payload_length, data_blocks, data_block_counter, index),
TP_STRUCT__entry(
__field(unsigned int, second)
__field(unsigned int, cycle)
__field(int, channel)
__field(int, src)
__field(int, dest)
- __field(u32, cip_header0)
- __field(u32, cip_header1)
- __field(unsigned int, payload_quadlets)
- __field(unsigned int, packet_index)
- __field(unsigned int, irq)
- __field(unsigned int, index)
- ),
- TP_fast_assign(
- __entry->second = cycles / CYCLES_PER_SECOND;
- __entry->cycle = cycles % CYCLES_PER_SECOND;
- __entry->channel = s->context->channel;
- __entry->src = fw_parent_device(s->unit)->node_id;
- __entry->dest = fw_parent_device(s->unit)->card->node_id;
- __entry->cip_header0 = cip_header[0];
- __entry->cip_header1 = cip_header[1];
- __entry->payload_quadlets = payload_length / 4;
- __entry->packet_index = s->packet_index;
- __entry->irq = !!in_interrupt();
- __entry->index = index;
- ),
- TP_printk(
- "%02u %04u %04x %04x %02d %08x %08x %03u %02u %01u %02u",
- __entry->second,
- __entry->cycle,
- __entry->src,
- __entry->dest,
- __entry->channel,
- __entry->cip_header0,
- __entry->cip_header1,
- __entry->payload_quadlets,
- __entry->packet_index,
- __entry->irq,
- __entry->index)
-);
-
-TRACE_EVENT(out_packet,
- TP_PROTO(const struct amdtp_stream *s, u32 cycles, __be32 *cip_header, unsigned int payload_length, unsigned int index),
- TP_ARGS(s, cycles, cip_header, payload_length, index),
- TP_STRUCT__entry(
- __field(unsigned int, second)
- __field(unsigned int, cycle)
- __field(int, channel)
- __field(int, src)
- __field(int, dest)
- __field(u32, cip_header0)
- __field(u32, cip_header1)
- __field(unsigned int, payload_quadlets)
- __field(unsigned int, packet_index)
- __field(unsigned int, irq)
- __field(unsigned int, index)
- ),
- TP_fast_assign(
- __entry->second = cycles / CYCLES_PER_SECOND;
- __entry->cycle = cycles % CYCLES_PER_SECOND;
- __entry->channel = s->context->channel;
- __entry->src = fw_parent_device(s->unit)->card->node_id;
- __entry->dest = fw_parent_device(s->unit)->node_id;
- __entry->cip_header0 = be32_to_cpu(cip_header[0]);
- __entry->cip_header1 = be32_to_cpu(cip_header[1]);
- __entry->payload_quadlets = payload_length / 4;
- __entry->packet_index = s->packet_index;
- __entry->irq = !!in_interrupt();
- __entry->index = index;
- ),
- TP_printk(
- "%02u %04u %04x %04x %02d %08x %08x %03u %02u %01u %02u",
- __entry->second,
- __entry->cycle,
- __entry->src,
- __entry->dest,
- __entry->channel,
- __entry->cip_header0,
- __entry->cip_header1,
- __entry->payload_quadlets,
- __entry->packet_index,
- __entry->irq,
- __entry->index)
-);
-
-TRACE_EVENT(in_packet_without_header,
- TP_PROTO(const struct amdtp_stream *s, u32 cycles, unsigned int payload_quadlets, unsigned int data_blocks, unsigned int index),
- TP_ARGS(s, cycles, payload_quadlets, data_blocks, index),
- TP_STRUCT__entry(
- __field(unsigned int, second)
- __field(unsigned int, cycle)
- __field(int, channel)
- __field(int, src)
- __field(int, dest)
+ __dynamic_array(u8, cip_header, cip_header ? 8 : 0)
__field(unsigned int, payload_quadlets)
__field(unsigned int, data_blocks)
__field(unsigned int, data_block_counter)
@@ -121,17 +34,26 @@
__entry->second = cycles / CYCLES_PER_SECOND;
__entry->cycle = cycles % CYCLES_PER_SECOND;
__entry->channel = s->context->channel;
- __entry->src = fw_parent_device(s->unit)->node_id;
- __entry->dest = fw_parent_device(s->unit)->card->node_id;
- __entry->payload_quadlets = payload_quadlets;
- __entry->data_blocks = data_blocks,
- __entry->data_block_counter = s->data_block_counter,
+ if (s->direction == AMDTP_IN_STREAM) {
+ __entry->src = fw_parent_device(s->unit)->node_id;
+ __entry->dest = fw_parent_device(s->unit)->card->node_id;
+ } else {
+ __entry->src = fw_parent_device(s->unit)->card->node_id;
+ __entry->dest = fw_parent_device(s->unit)->node_id;
+ }
+ if (cip_header) {
+ memcpy(__get_dynamic_array(cip_header), cip_header,
+ __get_dynamic_array_len(cip_header));
+ }
+ __entry->payload_quadlets = payload_length / sizeof(__be32);
+ __entry->data_blocks = data_blocks;
+ __entry->data_block_counter = data_block_counter,
__entry->packet_index = s->packet_index;
__entry->irq = !!in_interrupt();
__entry->index = index;
),
TP_printk(
- "%02u %04u %04x %04x %02d %03u %3u %3u %02u %01u %02u",
+ "%02u %04u %04x %04x %02d %03u %02u %03u %02u %01u %02u %s",
__entry->second,
__entry->cycle,
__entry->src,
@@ -142,51 +64,10 @@
__entry->data_block_counter,
__entry->packet_index,
__entry->irq,
- __entry->index)
-);
-
-TRACE_EVENT(out_packet_without_header,
- TP_PROTO(const struct amdtp_stream *s, u32 cycles, unsigned int payload_length, unsigned int data_blocks, unsigned int index),
- TP_ARGS(s, cycles, payload_length, data_blocks, index),
- TP_STRUCT__entry(
- __field(unsigned int, second)
- __field(unsigned int, cycle)
- __field(int, channel)
- __field(int, src)
- __field(int, dest)
- __field(unsigned int, payload_quadlets)
- __field(unsigned int, data_blocks)
- __field(unsigned int, data_block_counter)
- __field(unsigned int, packet_index)
- __field(unsigned int, irq)
- __field(unsigned int, index)
- ),
- TP_fast_assign(
- __entry->second = cycles / CYCLES_PER_SECOND;
- __entry->cycle = cycles % CYCLES_PER_SECOND;
- __entry->channel = s->context->channel;
- __entry->src = fw_parent_device(s->unit)->card->node_id;
- __entry->dest = fw_parent_device(s->unit)->node_id;
- __entry->payload_quadlets = payload_length / 4;
- __entry->data_blocks = data_blocks,
- __entry->data_blocks = s->data_block_counter,
- __entry->packet_index = s->packet_index;
- __entry->irq = !!in_interrupt();
- __entry->index = index;
- ),
- TP_printk(
- "%02u %04u %04x %04x %02d %03u %02u %03u %02u %01u %02u",
- __entry->second,
- __entry->cycle,
- __entry->src,
- __entry->dest,
- __entry->channel,
- __entry->payload_quadlets,
- __entry->data_blocks,
- __entry->data_block_counter,
- __entry->packet_index,
- __entry->irq,
- __entry->index)
+ __entry->index,
+ __print_array(__get_dynamic_array(cip_header),
+ __get_dynamic_array_len(cip_header),
+ sizeof(u8)))
);
#endif
diff --git a/sound/firewire/amdtp-stream.c b/sound/firewire/amdtp-stream.c
index cb9acfe..e50e28f 100644
--- a/sound/firewire/amdtp-stream.c
+++ b/sound/firewire/amdtp-stream.c
@@ -1,9 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Audio and Music Data Transmission Protocol (IEC 61883-6) streams
* with Common Isochronous Packet (IEC 61883-1) headers
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include <linux/device.h>
@@ -56,8 +56,14 @@
#define INTERRUPT_INTERVAL 16
#define QUEUE_LENGTH 48
-#define IN_PACKET_HEADER_SIZE 4
-#define OUT_PACKET_HEADER_SIZE 0
+// For iso header, tstamp and 2 CIP header.
+#define IR_CTX_HEADER_SIZE_CIP 16
+// For iso header and tstamp.
+#define IR_CTX_HEADER_SIZE_NO_CIP 8
+#define HEADER_TSTAMP_MASK 0x0000ffff
+
+#define IT_PKT_HEADER_SIZE_CIP 8 // For 2 CIP header.
+#define IT_PKT_HEADER_SIZE_NO_CIP 0 // Nothing.
static void pcm_period_tasklet(unsigned long data);
@@ -68,16 +74,16 @@
* @dir: the direction of stream
* @flags: the packet transmission method to use
* @fmt: the value of fmt field in CIP header
- * @process_data_blocks: callback handler to process data blocks
+ * @process_ctx_payloads: callback handler to process payloads of isoc context
* @protocol_size: the size to allocate newly for protocol
*/
int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit,
enum amdtp_stream_direction dir, enum cip_flags flags,
unsigned int fmt,
- amdtp_stream_process_data_blocks_t process_data_blocks,
+ amdtp_stream_process_ctx_payloads_t process_ctx_payloads,
unsigned int protocol_size)
{
- if (process_data_blocks == NULL)
+ if (process_ctx_payloads == NULL)
return -EINVAL;
s->protocol = kzalloc(protocol_size, GFP_KERNEL);
@@ -96,7 +102,10 @@
s->callbacked = false;
s->fmt = fmt;
- s->process_data_blocks = process_data_blocks;
+ s->process_ctx_payloads = process_ctx_payloads;
+
+ if (dir == AMDTP_OUT_STREAM)
+ s->ctx_data.rx.syt_override = -1;
return 0;
}
@@ -140,6 +149,28 @@
};
EXPORT_SYMBOL(amdtp_rate_table);
+static int apply_constraint_to_size(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ struct snd_interval *s = hw_param_interval(params, rule->var);
+ const struct snd_interval *r =
+ hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_RATE);
+ struct snd_interval t = {0};
+ unsigned int step = 0;
+ int i;
+
+ for (i = 0; i < CIP_SFC_COUNT; ++i) {
+ if (snd_interval_test(r, amdtp_rate_table[i]))
+ step = max(step, amdtp_syt_intervals[i]);
+ }
+
+ t.min = roundup(s->min, step);
+ t.max = rounddown(s->max, step);
+ t.integer = 1;
+
+ return snd_interval_refine(s, &t);
+}
+
/**
* amdtp_stream_add_pcm_hw_constraints - add hw constraints for PCM substream
* @s: the AMDTP stream, which must be initialized.
@@ -194,16 +225,19 @@
* number equals to SYT_INTERVAL. So the number is 8, 16 or 32,
* depending on its sampling rate. For accurate period interrupt, it's
* preferrable to align period/buffer sizes to current SYT_INTERVAL.
- *
- * TODO: These constraints can be improved with proper rules.
- * Currently apply LCM of SYT_INTERVALs.
*/
- err = snd_pcm_hw_constraint_step(runtime, 0,
- SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 32);
+ err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
+ apply_constraint_to_size, NULL,
+ SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
+ SNDRV_PCM_HW_PARAM_RATE, -1);
if (err < 0)
goto end;
- err = snd_pcm_hw_constraint_step(runtime, 0,
- SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 32);
+ err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
+ apply_constraint_to_size, NULL,
+ SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
+ SNDRV_PCM_HW_PARAM_RATE, -1);
+ if (err < 0)
+ goto end;
end:
return err;
}
@@ -234,11 +268,18 @@
s->data_block_quadlets = data_block_quadlets;
s->syt_interval = amdtp_syt_intervals[sfc];
- /* default buffering in the device */
- s->transfer_delay = TRANSFER_DELAY_TICKS - TICKS_PER_CYCLE;
- if (s->flags & CIP_BLOCKING)
- /* additional buffering needed to adjust for no-data packets */
- s->transfer_delay += TICKS_PER_SECOND * s->syt_interval / rate;
+ // default buffering in the device.
+ if (s->direction == AMDTP_OUT_STREAM) {
+ s->ctx_data.rx.transfer_delay =
+ TRANSFER_DELAY_TICKS - TICKS_PER_CYCLE;
+
+ if (s->flags & CIP_BLOCKING) {
+ // additional buffering needed to adjust for no-data
+ // packets.
+ s->ctx_data.rx.transfer_delay +=
+ TICKS_PER_SECOND * s->syt_interval / rate;
+ }
+ }
return 0;
}
@@ -254,15 +295,15 @@
unsigned int amdtp_stream_get_max_payload(struct amdtp_stream *s)
{
unsigned int multiplier = 1;
- unsigned int header_size = 0;
+ unsigned int cip_header_size = 0;
if (s->flags & CIP_JUMBO_PAYLOAD)
multiplier = 5;
if (!(s->flags & CIP_NO_HEADER))
- header_size = 8;
+ cip_header_size = sizeof(__be32) * 2;
- return header_size +
- s->syt_interval * s->data_block_quadlets * 4 * multiplier;
+ return cip_header_size +
+ s->syt_interval * s->data_block_quadlets * sizeof(__be32) * multiplier;
}
EXPORT_SYMBOL(amdtp_stream_get_max_payload);
@@ -295,10 +336,10 @@
/* Non-blocking mode. */
} else {
if (!cip_sfc_is_base_44100(s->sfc)) {
- /* Sample_rate / 8000 is an integer, and precomputed. */
- data_blocks = s->data_block_state;
+ // Sample_rate / 8000 is an integer, and precomputed.
+ data_blocks = s->ctx_data.rx.data_block_state;
} else {
- phase = s->data_block_state;
+ phase = s->ctx_data.rx.data_block_state;
/*
* This calculates the number of data blocks per packet so that
@@ -317,7 +358,7 @@
data_blocks = 11 * (s->sfc >> 1) + (phase == 0);
if (++phase >= (80 >> (s->sfc >> 1)))
phase = 0;
- s->data_block_state = phase;
+ s->ctx_data.rx.data_block_state = phase;
}
}
@@ -329,9 +370,10 @@
{
unsigned int syt_offset, phase, index, syt;
- if (s->last_syt_offset < TICKS_PER_CYCLE) {
+ if (s->ctx_data.rx.last_syt_offset < TICKS_PER_CYCLE) {
if (!cip_sfc_is_base_44100(s->sfc))
- syt_offset = s->last_syt_offset + s->syt_offset_state;
+ syt_offset = s->ctx_data.rx.last_syt_offset +
+ s->ctx_data.rx.syt_offset_state;
else {
/*
* The time, in ticks, of the n'th SYT_INTERVAL sample is:
@@ -343,21 +385,21 @@
* 1386 1386 1387 1386 1386 1386 1387 1386 1386 1386 1387 ...
* This code generates _exactly_ the same sequence.
*/
- phase = s->syt_offset_state;
+ phase = s->ctx_data.rx.syt_offset_state;
index = phase % 13;
- syt_offset = s->last_syt_offset;
+ syt_offset = s->ctx_data.rx.last_syt_offset;
syt_offset += 1386 + ((index && !(index & 3)) ||
phase == 146);
if (++phase >= 147)
phase = 0;
- s->syt_offset_state = phase;
+ s->ctx_data.rx.syt_offset_state = phase;
}
} else
- syt_offset = s->last_syt_offset - TICKS_PER_CYCLE;
- s->last_syt_offset = syt_offset;
+ syt_offset = s->ctx_data.rx.last_syt_offset - TICKS_PER_CYCLE;
+ s->ctx_data.rx.last_syt_offset = syt_offset;
if (syt_offset < TICKS_PER_CYCLE) {
- syt_offset += s->transfer_delay;
+ syt_offset += s->ctx_data.rx.transfer_delay;
syt = (cycle + syt_offset / TICKS_PER_CYCLE) << 12;
syt += syt_offset % TICKS_PER_CYCLE;
@@ -394,23 +436,15 @@
snd_pcm_period_elapsed(pcm);
}
-static int queue_packet(struct amdtp_stream *s, unsigned int header_length,
- unsigned int payload_length)
+static int queue_packet(struct amdtp_stream *s, struct fw_iso_packet *params)
{
- struct fw_iso_packet p = {0};
- int err = 0;
+ int err;
- if (IS_ERR(s->context))
- goto end;
+ params->interrupt = IS_ALIGNED(s->packet_index + 1, INTERRUPT_INTERVAL);
+ params->tag = s->tag;
+ params->sy = 0;
- p.interrupt = IS_ALIGNED(s->packet_index + 1, INTERRUPT_INTERVAL);
- p.tag = s->tag;
- p.header_length = header_length;
- if (payload_length > 0)
- p.payload_length = payload_length;
- else
- p.skip = true;
- err = fw_iso_context_queue(s->context, &p, &s->buffer.iso_buffer,
+ err = fw_iso_context_queue(s->context, params, &s->buffer.iso_buffer,
s->buffer.packets[s->packet_index].offset);
if (err < 0) {
dev_err(&s->unit->device, "queueing error: %d\n", err);
@@ -424,112 +458,75 @@
}
static inline int queue_out_packet(struct amdtp_stream *s,
- unsigned int payload_length)
+ struct fw_iso_packet *params)
{
- return queue_packet(s, OUT_PACKET_HEADER_SIZE, payload_length);
+ params->skip =
+ !!(params->header_length == 0 && params->payload_length == 0);
+ return queue_packet(s, params);
}
-static inline int queue_in_packet(struct amdtp_stream *s)
+static inline int queue_in_packet(struct amdtp_stream *s,
+ struct fw_iso_packet *params)
{
- return queue_packet(s, IN_PACKET_HEADER_SIZE, s->max_payload_length);
+ // Queue one packet for IR context.
+ params->header_length = s->ctx_data.tx.ctx_header_size;
+ params->payload_length = s->ctx_data.tx.max_ctx_payload_length;
+ params->skip = false;
+ return queue_packet(s, params);
}
-static int handle_out_packet(struct amdtp_stream *s,
- unsigned int payload_length, unsigned int cycle,
- unsigned int index)
+static void generate_cip_header(struct amdtp_stream *s, __be32 cip_header[2],
+ unsigned int data_block_counter, unsigned int syt)
{
- __be32 *buffer;
- unsigned int syt;
- unsigned int data_blocks;
- unsigned int pcm_frames;
- struct snd_pcm_substream *pcm;
-
- buffer = s->buffer.packets[s->packet_index].buffer;
- syt = calculate_syt(s, cycle);
- data_blocks = calculate_data_blocks(s, syt);
- pcm_frames = s->process_data_blocks(s, buffer + 2, data_blocks, &syt);
-
- if (s->flags & CIP_DBC_IS_END_EVENT)
- s->data_block_counter =
- (s->data_block_counter + data_blocks) & 0xff;
-
- buffer[0] = cpu_to_be32(READ_ONCE(s->source_node_id_field) |
+ cip_header[0] = cpu_to_be32(READ_ONCE(s->source_node_id_field) |
(s->data_block_quadlets << CIP_DBS_SHIFT) |
((s->sph << CIP_SPH_SHIFT) & CIP_SPH_MASK) |
- s->data_block_counter);
- buffer[1] = cpu_to_be32(CIP_EOH |
- ((s->fmt << CIP_FMT_SHIFT) & CIP_FMT_MASK) |
- ((s->fdf << CIP_FDF_SHIFT) & CIP_FDF_MASK) |
- (syt & CIP_SYT_MASK));
-
- if (!(s->flags & CIP_DBC_IS_END_EVENT))
- s->data_block_counter =
- (s->data_block_counter + data_blocks) & 0xff;
- payload_length = 8 + data_blocks * 4 * s->data_block_quadlets;
-
- trace_out_packet(s, cycle, buffer, payload_length, index);
-
- if (queue_out_packet(s, payload_length) < 0)
- return -EIO;
-
- pcm = READ_ONCE(s->pcm);
- if (pcm && pcm_frames > 0)
- update_pcm_pointers(s, pcm, pcm_frames);
-
- /* No need to return the number of handled data blocks. */
- return 0;
+ data_block_counter);
+ cip_header[1] = cpu_to_be32(CIP_EOH |
+ ((s->fmt << CIP_FMT_SHIFT) & CIP_FMT_MASK) |
+ ((s->ctx_data.rx.fdf << CIP_FDF_SHIFT) & CIP_FDF_MASK) |
+ (syt & CIP_SYT_MASK));
}
-static int handle_out_packet_without_header(struct amdtp_stream *s,
- unsigned int payload_length, unsigned int cycle,
- unsigned int index)
+static void build_it_pkt_header(struct amdtp_stream *s, unsigned int cycle,
+ struct fw_iso_packet *params,
+ unsigned int data_blocks,
+ unsigned int data_block_counter,
+ unsigned int syt, unsigned int index)
{
- __be32 *buffer;
- unsigned int syt;
- unsigned int data_blocks;
- unsigned int pcm_frames;
- struct snd_pcm_substream *pcm;
+ unsigned int payload_length;
+ __be32 *cip_header;
- buffer = s->buffer.packets[s->packet_index].buffer;
- syt = calculate_syt(s, cycle);
- data_blocks = calculate_data_blocks(s, syt);
- pcm_frames = s->process_data_blocks(s, buffer, data_blocks, &syt);
- s->data_block_counter = (s->data_block_counter + data_blocks) & 0xff;
+ payload_length = data_blocks * sizeof(__be32) * s->data_block_quadlets;
+ params->payload_length = payload_length;
- payload_length = data_blocks * 4 * s->data_block_quadlets;
+ if (!(s->flags & CIP_NO_HEADER)) {
+ cip_header = (__be32 *)params->header;
+ generate_cip_header(s, cip_header, data_block_counter, syt);
+ params->header_length = 2 * sizeof(__be32);
+ payload_length += params->header_length;
+ } else {
+ cip_header = NULL;
+ }
- trace_out_packet_without_header(s, cycle, payload_length, data_blocks,
- index);
-
- if (queue_out_packet(s, payload_length) < 0)
- return -EIO;
-
- pcm = READ_ONCE(s->pcm);
- if (pcm && pcm_frames > 0)
- update_pcm_pointers(s, pcm, pcm_frames);
-
- /* No need to return the number of handled data blocks. */
- return 0;
+ trace_amdtp_packet(s, cycle, cip_header, payload_length, data_blocks,
+ data_block_counter, index);
}
-static int handle_in_packet(struct amdtp_stream *s,
- unsigned int payload_length, unsigned int cycle,
- unsigned int index)
+static int check_cip_header(struct amdtp_stream *s, const __be32 *buf,
+ unsigned int payload_length,
+ unsigned int *data_blocks,
+ unsigned int *data_block_counter, unsigned int *syt)
{
- __be32 *buffer;
u32 cip_header[2];
- unsigned int sph, fmt, fdf, syt;
- unsigned int data_block_quadlets, data_block_counter, dbc_interval;
- unsigned int data_blocks;
- struct snd_pcm_substream *pcm;
- unsigned int pcm_frames;
+ unsigned int sph;
+ unsigned int fmt;
+ unsigned int fdf;
+ unsigned int dbc;
bool lost;
- buffer = s->buffer.packets[s->packet_index].buffer;
- cip_header[0] = be32_to_cpu(buffer[0]);
- cip_header[1] = be32_to_cpu(buffer[1]);
-
- trace_in_packet(s, cycle, cip_header, payload_length, index);
+ cip_header[0] = be32_to_cpu(buf[0]);
+ cip_header[1] = be32_to_cpu(buf[1]);
/*
* This module supports 'Two-quadlet CIP header with SYT field'.
@@ -541,9 +538,7 @@
dev_info_ratelimited(&s->unit->device,
"Invalid CIP header for AMDTP: %08X:%08X\n",
cip_header[0], cip_header[1]);
- data_blocks = 0;
- pcm_frames = 0;
- goto end;
+ return -EAGAIN;
}
/* Check valid protocol or not. */
@@ -553,19 +548,17 @@
dev_info_ratelimited(&s->unit->device,
"Detect unexpected protocol: %08x %08x\n",
cip_header[0], cip_header[1]);
- data_blocks = 0;
- pcm_frames = 0;
- goto end;
+ return -EAGAIN;
}
/* Calculate data blocks */
fdf = (cip_header[1] & CIP_FDF_MASK) >> CIP_FDF_SHIFT;
- if (payload_length < 12 ||
+ if (payload_length < sizeof(__be32) * 2 ||
(fmt == CIP_FMT_AM && fdf == AMDTP_FDF_NO_DATA)) {
- data_blocks = 0;
+ *data_blocks = 0;
} else {
- data_block_quadlets =
- (cip_header[0] & CIP_DBS_MASK) >> CIP_DBS_SHIFT;
+ unsigned int data_block_quadlets =
+ (cip_header[0] & CIP_DBS_MASK) >> CIP_DBS_SHIFT;
/* avoid division by zero */
if (data_block_quadlets == 0) {
dev_err(&s->unit->device,
@@ -576,93 +569,94 @@
if (s->flags & CIP_WRONG_DBS)
data_block_quadlets = s->data_block_quadlets;
- data_blocks = (payload_length / 4 - 2) /
+ *data_blocks = (payload_length / sizeof(__be32) - 2) /
data_block_quadlets;
}
/* Check data block counter continuity */
- data_block_counter = cip_header[0] & CIP_DBC_MASK;
- if (data_blocks == 0 && (s->flags & CIP_EMPTY_HAS_WRONG_DBC) &&
- s->data_block_counter != UINT_MAX)
- data_block_counter = s->data_block_counter;
+ dbc = cip_header[0] & CIP_DBC_MASK;
+ if (*data_blocks == 0 && (s->flags & CIP_EMPTY_HAS_WRONG_DBC) &&
+ *data_block_counter != UINT_MAX)
+ dbc = *data_block_counter;
- if (((s->flags & CIP_SKIP_DBC_ZERO_CHECK) &&
- data_block_counter == s->tx_first_dbc) ||
- s->data_block_counter == UINT_MAX) {
+ if ((dbc == 0x00 && (s->flags & CIP_SKIP_DBC_ZERO_CHECK)) ||
+ *data_block_counter == UINT_MAX) {
lost = false;
} else if (!(s->flags & CIP_DBC_IS_END_EVENT)) {
- lost = data_block_counter != s->data_block_counter;
+ lost = dbc != *data_block_counter;
} else {
- if (data_blocks > 0 && s->tx_dbc_interval > 0)
- dbc_interval = s->tx_dbc_interval;
- else
- dbc_interval = data_blocks;
+ unsigned int dbc_interval;
- lost = data_block_counter !=
- ((s->data_block_counter + dbc_interval) & 0xff);
+ if (*data_blocks > 0 && s->ctx_data.tx.dbc_interval > 0)
+ dbc_interval = s->ctx_data.tx.dbc_interval;
+ else
+ dbc_interval = *data_blocks;
+
+ lost = dbc != ((*data_block_counter + dbc_interval) & 0xff);
}
if (lost) {
dev_err(&s->unit->device,
"Detect discontinuity of CIP: %02X %02X\n",
- s->data_block_counter, data_block_counter);
+ *data_block_counter, dbc);
return -EIO;
}
- syt = be32_to_cpu(buffer[1]) & CIP_SYT_MASK;
- pcm_frames = s->process_data_blocks(s, buffer + 2, data_blocks, &syt);
+ *data_block_counter = dbc;
- if (s->flags & CIP_DBC_IS_END_EVENT)
- s->data_block_counter = data_block_counter;
- else
- s->data_block_counter =
- (data_block_counter + data_blocks) & 0xff;
-end:
- if (queue_in_packet(s) < 0)
- return -EIO;
-
- pcm = READ_ONCE(s->pcm);
- if (pcm && pcm_frames > 0)
- update_pcm_pointers(s, pcm, pcm_frames);
+ *syt = cip_header[1] & CIP_SYT_MASK;
return 0;
}
-static int handle_in_packet_without_header(struct amdtp_stream *s,
- unsigned int payload_quadlets, unsigned int cycle,
- unsigned int index)
+static int parse_ir_ctx_header(struct amdtp_stream *s, unsigned int cycle,
+ const __be32 *ctx_header,
+ unsigned int *payload_length,
+ unsigned int *data_blocks,
+ unsigned int *data_block_counter,
+ unsigned int *syt, unsigned int index)
{
- __be32 *buffer;
- unsigned int data_blocks;
- struct snd_pcm_substream *pcm;
- unsigned int pcm_frames;
+ const __be32 *cip_header;
+ int err;
- buffer = s->buffer.packets[s->packet_index].buffer;
- data_blocks = payload_quadlets / s->data_block_quadlets;
-
- trace_in_packet_without_header(s, cycle, payload_quadlets, data_blocks,
- index);
-
- pcm_frames = s->process_data_blocks(s, buffer, data_blocks, NULL);
- s->data_block_counter = (s->data_block_counter + data_blocks) & 0xff;
-
- if (queue_in_packet(s) < 0)
+ *payload_length = be32_to_cpu(ctx_header[0]) >> ISO_DATA_LENGTH_SHIFT;
+ if (*payload_length > s->ctx_data.tx.ctx_header_size +
+ s->ctx_data.tx.max_ctx_payload_length) {
+ dev_err(&s->unit->device,
+ "Detect jumbo payload: %04x %04x\n",
+ *payload_length, s->ctx_data.tx.max_ctx_payload_length);
return -EIO;
+ }
- pcm = READ_ONCE(s->pcm);
- if (pcm && pcm_frames > 0)
- update_pcm_pointers(s, pcm, pcm_frames);
+ if (!(s->flags & CIP_NO_HEADER)) {
+ cip_header = ctx_header + 2;
+ err = check_cip_header(s, cip_header, *payload_length,
+ data_blocks, data_block_counter, syt);
+ if (err < 0)
+ return err;
+ } else {
+ cip_header = NULL;
+ err = 0;
+ *data_blocks = *payload_length / sizeof(__be32) /
+ s->data_block_quadlets;
+ *syt = 0;
- return 0;
+ if (*data_block_counter == UINT_MAX)
+ *data_block_counter = 0;
+ }
+
+ trace_amdtp_packet(s, cycle, cip_header, *payload_length, *data_blocks,
+ *data_block_counter, index);
+
+ return err;
}
-/*
- * In CYCLE_TIMER register of IEEE 1394, 7 bits are used to represent second. On
- * the other hand, in DMA descriptors of 1394 OHCI, 3 bits are used to represent
- * it. Thus, via Linux firewire subsystem, we can get the 3 bits for second.
- */
-static inline u32 compute_cycle_count(u32 tstamp)
+// In CYCLE_TIMER register of IEEE 1394, 7 bits are used to represent second. On
+// the other hand, in DMA descriptors of 1394 OHCI, 3 bits are used to represent
+// it. Thus, via Linux firewire subsystem, we can get the 3 bits for second.
+static inline u32 compute_cycle_count(__be32 ctx_header_tstamp)
{
+ u32 tstamp = be32_to_cpu(ctx_header_tstamp) & HEADER_TSTAMP_MASK;
return (((tstamp >> 13) & 0x07) * 8000) + (tstamp & 0x1fff);
}
@@ -674,11 +668,109 @@
return cycle;
}
-static inline u32 decrement_cycle_count(u32 cycle, unsigned int subtrahend)
+// Align to actual cycle count for the packet which is going to be scheduled.
+// This module queued the same number of isochronous cycle as QUEUE_LENGTH to
+// skip isochronous cycle, therefore it's OK to just increment the cycle by
+// QUEUE_LENGTH for scheduled cycle.
+static inline u32 compute_it_cycle(const __be32 ctx_header_tstamp)
{
- if (cycle < subtrahend)
- cycle += 8 * CYCLES_PER_SECOND;
- return cycle - subtrahend;
+ u32 cycle = compute_cycle_count(ctx_header_tstamp);
+ return increment_cycle_count(cycle, QUEUE_LENGTH);
+}
+
+static int generate_device_pkt_descs(struct amdtp_stream *s,
+ struct pkt_desc *descs,
+ const __be32 *ctx_header,
+ unsigned int packets)
+{
+ unsigned int dbc = s->data_block_counter;
+ int i;
+ int err;
+
+ for (i = 0; i < packets; ++i) {
+ struct pkt_desc *desc = descs + i;
+ unsigned int index = (s->packet_index + i) % QUEUE_LENGTH;
+ unsigned int cycle;
+ unsigned int payload_length;
+ unsigned int data_blocks;
+ unsigned int syt;
+
+ cycle = compute_cycle_count(ctx_header[1]);
+
+ err = parse_ir_ctx_header(s, cycle, ctx_header, &payload_length,
+ &data_blocks, &dbc, &syt, i);
+ if (err < 0)
+ return err;
+
+ desc->cycle = cycle;
+ desc->syt = syt;
+ desc->data_blocks = data_blocks;
+ desc->data_block_counter = dbc;
+ desc->ctx_payload = s->buffer.packets[index].buffer;
+
+ if (!(s->flags & CIP_DBC_IS_END_EVENT))
+ dbc = (dbc + desc->data_blocks) & 0xff;
+
+ ctx_header +=
+ s->ctx_data.tx.ctx_header_size / sizeof(*ctx_header);
+ }
+
+ s->data_block_counter = dbc;
+
+ return 0;
+}
+
+static void generate_ideal_pkt_descs(struct amdtp_stream *s,
+ struct pkt_desc *descs,
+ const __be32 *ctx_header,
+ unsigned int packets)
+{
+ unsigned int dbc = s->data_block_counter;
+ int i;
+
+ for (i = 0; i < packets; ++i) {
+ struct pkt_desc *desc = descs + i;
+ unsigned int index = (s->packet_index + i) % QUEUE_LENGTH;
+
+ desc->cycle = compute_it_cycle(*ctx_header);
+ desc->syt = calculate_syt(s, desc->cycle);
+ desc->data_blocks = calculate_data_blocks(s, desc->syt);
+
+ if (s->flags & CIP_DBC_IS_END_EVENT)
+ dbc = (dbc + desc->data_blocks) & 0xff;
+
+ desc->data_block_counter = dbc;
+
+ if (!(s->flags & CIP_DBC_IS_END_EVENT))
+ dbc = (dbc + desc->data_blocks) & 0xff;
+
+ desc->ctx_payload = s->buffer.packets[index].buffer;
+
+ ++ctx_header;
+ }
+
+ s->data_block_counter = dbc;
+}
+
+static inline void cancel_stream(struct amdtp_stream *s)
+{
+ s->packet_index = -1;
+ if (in_interrupt())
+ amdtp_stream_pcm_abort(s);
+ WRITE_ONCE(s->pcm_buffer_pointer, SNDRV_PCM_POS_XRUN);
+}
+
+static void process_ctx_payloads(struct amdtp_stream *s,
+ const struct pkt_desc *descs,
+ unsigned int packets)
+{
+ struct snd_pcm_substream *pcm;
+ unsigned int pcm_frames;
+
+ pcm = READ_ONCE(s->pcm);
+ pcm_frames = s->process_ctx_payloads(s, descs, packets, pcm);
+ if (pcm)
+ update_pcm_pointers(s, pcm, pcm_frames);
}
static void out_stream_callback(struct fw_iso_context *context, u32 tstamp,
@@ -686,24 +778,36 @@
void *private_data)
{
struct amdtp_stream *s = private_data;
- unsigned int i, packets = header_length / 4;
- u32 cycle;
+ const __be32 *ctx_header = header;
+ unsigned int packets = header_length / sizeof(*ctx_header);
+ int i;
if (s->packet_index < 0)
return;
- cycle = compute_cycle_count(tstamp);
+ generate_ideal_pkt_descs(s, s->pkt_descs, ctx_header, packets);
- /* Align to actual cycle count for the last packet. */
- cycle = increment_cycle_count(cycle, QUEUE_LENGTH - packets);
+ process_ctx_payloads(s, s->pkt_descs, packets);
for (i = 0; i < packets; ++i) {
- cycle = increment_cycle_count(cycle, 1);
- if (s->handle_packet(s, 0, cycle, i) < 0) {
- s->packet_index = -1;
- if (in_interrupt())
- amdtp_stream_pcm_abort(s);
- WRITE_ONCE(s->pcm_buffer_pointer, SNDRV_PCM_POS_XRUN);
+ const struct pkt_desc *desc = s->pkt_descs + i;
+ unsigned int syt;
+ struct {
+ struct fw_iso_packet params;
+ __be32 header[IT_PKT_HEADER_SIZE_CIP / sizeof(__be32)];
+ } template = { {0}, {0} };
+
+ if (s->ctx_data.rx.syt_override < 0)
+ syt = desc->syt;
+ else
+ syt = s->ctx_data.rx.syt_override;
+
+ build_it_pkt_header(s, desc->cycle, &template.params,
+ desc->data_blocks, desc->data_block_counter,
+ syt, i);
+
+ if (queue_out_packet(s, &template.params) < 0) {
+ cancel_stream(s);
return;
}
}
@@ -716,49 +820,34 @@
void *private_data)
{
struct amdtp_stream *s = private_data;
- unsigned int i, packets;
- unsigned int payload_length, max_payload_length;
- __be32 *headers = header;
- u32 cycle;
+ unsigned int packets;
+ __be32 *ctx_header = header;
+ int i;
+ int err;
if (s->packet_index < 0)
return;
- /* The number of packets in buffer */
- packets = header_length / IN_PACKET_HEADER_SIZE;
+ // The number of packets in buffer.
+ packets = header_length / s->ctx_data.tx.ctx_header_size;
- cycle = compute_cycle_count(tstamp);
-
- /* Align to actual cycle count for the last packet. */
- cycle = decrement_cycle_count(cycle, packets);
-
- /* For buffer-over-run prevention. */
- max_payload_length = s->max_payload_length;
-
- for (i = 0; i < packets; i++) {
- cycle = increment_cycle_count(cycle, 1);
-
- /* The number of bytes in this packet */
- payload_length =
- (be32_to_cpu(headers[i]) >> ISO_DATA_LENGTH_SHIFT);
- if (payload_length > max_payload_length) {
- dev_err(&s->unit->device,
- "Detect jumbo payload: %04x %04x\n",
- payload_length, max_payload_length);
- break;
+ err = generate_device_pkt_descs(s, s->pkt_descs, ctx_header, packets);
+ if (err < 0) {
+ if (err != -EAGAIN) {
+ cancel_stream(s);
+ return;
}
-
- if (s->handle_packet(s, payload_length, cycle, i) < 0)
- break;
+ } else {
+ process_ctx_payloads(s, s->pkt_descs, packets);
}
- /* Queueing error or detecting invalid payload. */
- if (i < packets) {
- s->packet_index = -1;
- if (in_interrupt())
- amdtp_stream_pcm_abort(s);
- WRITE_ONCE(s->pcm_buffer_pointer, SNDRV_PCM_POS_XRUN);
- return;
+ for (i = 0; i < packets; ++i) {
+ struct fw_iso_packet params = {0};
+
+ if (queue_in_packet(s, ¶ms) < 0) {
+ cancel_stream(s);
+ return;
+ }
}
fw_iso_context_queue_flush(s->context);
@@ -770,8 +859,8 @@
void *header, void *private_data)
{
struct amdtp_stream *s = private_data;
+ const __be32 *ctx_header = header;
u32 cycle;
- unsigned int packets;
/*
* For in-stream, first packet has come.
@@ -780,24 +869,14 @@
s->callbacked = true;
wake_up(&s->callback_wait);
- cycle = compute_cycle_count(tstamp);
-
if (s->direction == AMDTP_IN_STREAM) {
- packets = header_length / IN_PACKET_HEADER_SIZE;
- cycle = decrement_cycle_count(cycle, packets);
+ cycle = compute_cycle_count(ctx_header[1]);
+
context->callback.sc = in_stream_callback;
- if (s->flags & CIP_NO_HEADER)
- s->handle_packet = handle_in_packet_without_header;
- else
- s->handle_packet = handle_in_packet;
} else {
- packets = header_length / 4;
- cycle = increment_cycle_count(cycle, QUEUE_LENGTH - packets);
+ cycle = compute_it_cycle(*ctx_header);
+
context->callback.sc = out_stream_callback;
- if (s->flags & CIP_NO_HEADER)
- s->handle_packet = handle_out_packet_without_header;
- else
- s->handle_packet = handle_out_packet;
}
s->start_cycle = cycle;
@@ -815,12 +894,12 @@
* amdtp_stream_set_parameters() and it must be started before any PCM or MIDI
* device can be started.
*/
-int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed)
+static int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed)
{
static const struct {
unsigned int data_block;
unsigned int syt_offset;
- } initial_state[] = {
+ } *entry, initial_state[] = {
[CIP_SFC_32000] = { 4, 3072 },
[CIP_SFC_48000] = { 6, 1024 },
[CIP_SFC_96000] = { 12, 1024 },
@@ -829,7 +908,8 @@
[CIP_SFC_88200] = { 0, 67 },
[CIP_SFC_176400] = { 0, 67 },
};
- unsigned int header_size;
+ unsigned int ctx_header_size;
+ unsigned int max_ctx_payload_size;
enum dma_data_direction dir;
int type, tag, err;
@@ -841,32 +921,46 @@
goto err_unlock;
}
- if (s->direction == AMDTP_IN_STREAM)
+ if (s->direction == AMDTP_IN_STREAM) {
s->data_block_counter = UINT_MAX;
- else
+ } else {
+ entry = &initial_state[s->sfc];
+
s->data_block_counter = 0;
- s->data_block_state = initial_state[s->sfc].data_block;
- s->syt_offset_state = initial_state[s->sfc].syt_offset;
- s->last_syt_offset = TICKS_PER_CYCLE;
+ s->ctx_data.rx.data_block_state = entry->data_block;
+ s->ctx_data.rx.syt_offset_state = entry->syt_offset;
+ s->ctx_data.rx.last_syt_offset = TICKS_PER_CYCLE;
+ }
/* initialize packet buffer */
if (s->direction == AMDTP_IN_STREAM) {
dir = DMA_FROM_DEVICE;
type = FW_ISO_CONTEXT_RECEIVE;
- header_size = IN_PACKET_HEADER_SIZE;
+ if (!(s->flags & CIP_NO_HEADER))
+ ctx_header_size = IR_CTX_HEADER_SIZE_CIP;
+ else
+ ctx_header_size = IR_CTX_HEADER_SIZE_NO_CIP;
+
+ max_ctx_payload_size = amdtp_stream_get_max_payload(s) -
+ ctx_header_size;
} else {
dir = DMA_TO_DEVICE;
type = FW_ISO_CONTEXT_TRANSMIT;
- header_size = OUT_PACKET_HEADER_SIZE;
+ ctx_header_size = 0; // No effect for IT context.
+
+ max_ctx_payload_size = amdtp_stream_get_max_payload(s);
+ if (!(s->flags & CIP_NO_HEADER))
+ max_ctx_payload_size -= IT_PKT_HEADER_SIZE_CIP;
}
+
err = iso_packets_buffer_init(&s->buffer, s->unit, QUEUE_LENGTH,
- amdtp_stream_get_max_payload(s), dir);
+ max_ctx_payload_size, dir);
if (err < 0)
goto err_unlock;
s->context = fw_iso_context_create(fw_parent_device(s->unit)->card,
- type, channel, speed, header_size,
- amdtp_stream_first_callback, s);
+ type, channel, speed, ctx_header_size,
+ amdtp_stream_first_callback, s);
if (IS_ERR(s->context)) {
err = PTR_ERR(s->context);
if (err == -EBUSY)
@@ -877,22 +971,35 @@
amdtp_stream_update(s);
- if (s->direction == AMDTP_IN_STREAM)
- s->max_payload_length = amdtp_stream_get_max_payload(s);
+ if (s->direction == AMDTP_IN_STREAM) {
+ s->ctx_data.tx.max_ctx_payload_length = max_ctx_payload_size;
+ s->ctx_data.tx.ctx_header_size = ctx_header_size;
+ }
if (s->flags & CIP_NO_HEADER)
s->tag = TAG_NO_CIP_HEADER;
else
s->tag = TAG_CIP;
+ s->pkt_descs = kcalloc(INTERRUPT_INTERVAL, sizeof(*s->pkt_descs),
+ GFP_KERNEL);
+ if (!s->pkt_descs) {
+ err = -ENOMEM;
+ goto err_context;
+ }
+
s->packet_index = 0;
do {
- if (s->direction == AMDTP_IN_STREAM)
- err = queue_in_packet(s);
- else
- err = queue_out_packet(s, 0);
+ struct fw_iso_packet params;
+ if (s->direction == AMDTP_IN_STREAM) {
+ err = queue_in_packet(s, ¶ms);
+ } else {
+ params.header_length = 0;
+ params.payload_length = 0;
+ err = queue_out_packet(s, ¶ms);
+ }
if (err < 0)
- goto err_context;
+ goto err_pkt_descs;
} while (s->packet_index > 0);
/* NOTE: TAG1 matches CIP. This just affects in stream. */
@@ -903,12 +1010,13 @@
s->callbacked = false;
err = fw_iso_context_start(s->context, -1, 0, tag);
if (err < 0)
- goto err_context;
+ goto err_pkt_descs;
mutex_unlock(&s->mutex);
return 0;
-
+err_pkt_descs:
+ kfree(s->pkt_descs);
err_context:
fw_iso_context_destroy(s->context);
s->context = ERR_PTR(-1);
@@ -919,7 +1027,6 @@
return err;
}
-EXPORT_SYMBOL(amdtp_stream_start);
/**
* amdtp_stream_pcm_pointer - get the PCM buffer position
@@ -990,7 +1097,7 @@
* All PCM and MIDI devices of the stream must be stopped before the stream
* itself can be stopped.
*/
-void amdtp_stream_stop(struct amdtp_stream *s)
+static void amdtp_stream_stop(struct amdtp_stream *s)
{
mutex_lock(&s->mutex);
@@ -1004,12 +1111,12 @@
fw_iso_context_destroy(s->context);
s->context = ERR_PTR(-1);
iso_packets_buffer_destroy(&s->buffer, s->unit);
+ kfree(s->pkt_descs);
s->callbacked = false;
mutex_unlock(&s->mutex);
}
-EXPORT_SYMBOL(amdtp_stream_stop);
/**
* amdtp_stream_pcm_abort - abort the running PCM device
@@ -1027,3 +1134,92 @@
snd_pcm_stop_xrun(pcm);
}
EXPORT_SYMBOL(amdtp_stream_pcm_abort);
+
+/**
+ * amdtp_domain_init - initialize an AMDTP domain structure
+ * @d: the AMDTP domain to initialize.
+ */
+int amdtp_domain_init(struct amdtp_domain *d)
+{
+ INIT_LIST_HEAD(&d->streams);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(amdtp_domain_init);
+
+/**
+ * amdtp_domain_destroy - destroy an AMDTP domain structure
+ * @d: the AMDTP domain to destroy.
+ */
+void amdtp_domain_destroy(struct amdtp_domain *d)
+{
+ // At present nothing to do.
+ return;
+}
+EXPORT_SYMBOL_GPL(amdtp_domain_destroy);
+
+/**
+ * amdtp_domain_add_stream - register isoc context into the domain.
+ * @d: the AMDTP domain.
+ * @s: the AMDTP stream.
+ * @channel: the isochronous channel on the bus.
+ * @speed: firewire speed code.
+ */
+int amdtp_domain_add_stream(struct amdtp_domain *d, struct amdtp_stream *s,
+ int channel, int speed)
+{
+ struct amdtp_stream *tmp;
+
+ list_for_each_entry(tmp, &d->streams, list) {
+ if (s == tmp)
+ return -EBUSY;
+ }
+
+ list_add(&s->list, &d->streams);
+
+ s->channel = channel;
+ s->speed = speed;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(amdtp_domain_add_stream);
+
+/**
+ * amdtp_domain_start - start sending packets for isoc context in the domain.
+ * @d: the AMDTP domain.
+ */
+int amdtp_domain_start(struct amdtp_domain *d)
+{
+ struct amdtp_stream *s;
+ int err = 0;
+
+ list_for_each_entry(s, &d->streams, list) {
+ err = amdtp_stream_start(s, s->channel, s->speed);
+ if (err < 0)
+ break;
+ }
+
+ if (err < 0) {
+ list_for_each_entry(s, &d->streams, list)
+ amdtp_stream_stop(s);
+ }
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(amdtp_domain_start);
+
+/**
+ * amdtp_domain_stop - stop sending packets for isoc context in the same domain.
+ * @d: the AMDTP domain to which the isoc contexts belong.
+ */
+void amdtp_domain_stop(struct amdtp_domain *d)
+{
+ struct amdtp_stream *s, *next;
+
+ list_for_each_entry_safe(s, next, &d->streams, list) {
+ list_del(&s->list);
+
+ amdtp_stream_stop(s);
+ }
+}
+EXPORT_SYMBOL_GPL(amdtp_domain_stop);
diff --git a/sound/firewire/amdtp-stream.h b/sound/firewire/amdtp-stream.h
index e45de3e..bbbca96 100644
--- a/sound/firewire/amdtp-stream.h
+++ b/sound/firewire/amdtp-stream.h
@@ -33,6 +33,8 @@
* @CIP_HEADER_WITHOUT_EOH: Only for in-stream. CIP Header doesn't include
* valid EOH.
* @CIP_NO_HEADERS: a lack of headers in packets
+ * @CIP_UNALIGHED_DBC: Only for in-stream. The value of dbc is not alighed to
+ * the value of current SYT_INTERVAL; e.g. initial value is not zero.
*/
enum cip_flags {
CIP_NONBLOCKING = 0x00,
@@ -45,6 +47,7 @@
CIP_JUMBO_PAYLOAD = 0x40,
CIP_HEADER_WITHOUT_EOH = 0x80,
CIP_NO_HEADER = 0x100,
+ CIP_UNALIGHED_DBC = 0x200,
};
/**
@@ -91,12 +94,20 @@
AMDTP_IN_STREAM
};
+struct pkt_desc {
+ u32 cycle;
+ u32 syt;
+ unsigned int data_blocks;
+ unsigned int data_block_counter;
+ __be32 *ctx_payload;
+};
+
struct amdtp_stream;
-typedef unsigned int (*amdtp_stream_process_data_blocks_t)(
+typedef unsigned int (*amdtp_stream_process_ctx_payloads_t)(
struct amdtp_stream *s,
- __be32 *buffer,
- unsigned int data_blocks,
- unsigned int *syt);
+ const struct pkt_desc *desc,
+ unsigned int packets,
+ struct snd_pcm_substream *pcm);
struct amdtp_stream {
struct fw_unit *unit;
enum cip_flags flags;
@@ -107,11 +118,32 @@
struct fw_iso_context *context;
struct iso_packets_buffer buffer;
int packet_index;
+ struct pkt_desc *pkt_descs;
int tag;
- int (*handle_packet)(struct amdtp_stream *s,
- unsigned int payload_quadlets, unsigned int cycle,
- unsigned int index);
- unsigned int max_payload_length;
+ union {
+ struct {
+ unsigned int ctx_header_size;
+
+ // limit for payload of iso packet.
+ unsigned int max_ctx_payload_length;
+
+ // For quirks of CIP headers.
+ // Fixed interval of dbc between previos/current
+ // packets.
+ unsigned int dbc_interval;
+ } tx;
+ struct {
+ // To calculate CIP data blocks and tstamp.
+ unsigned int transfer_delay;
+ unsigned int data_block_state;
+ unsigned int last_syt_offset;
+ unsigned int syt_offset_state;
+
+ // To generate CIP header.
+ unsigned int fdf;
+ int syt_override;
+ } rx;
+ } ctx_data;
/* For CIP headers. */
unsigned int source_node_id_field;
@@ -119,19 +151,10 @@
unsigned int data_block_counter;
unsigned int sph;
unsigned int fmt;
- unsigned int fdf;
- /* quirk: fixed interval of dbc between previos/current packets. */
- unsigned int tx_dbc_interval;
- /* quirk: indicate the value of dbc field in a first packet. */
- unsigned int tx_first_dbc;
/* Internal flags. */
enum cip_sfc sfc;
unsigned int syt_interval;
- unsigned int transfer_delay;
- unsigned int data_block_state;
- unsigned int last_syt_offset;
- unsigned int syt_offset_state;
/* For a PCM substream processing. */
struct snd_pcm_substream *pcm;
@@ -146,13 +169,18 @@
/* For backends to process data blocks. */
void *protocol;
- amdtp_stream_process_data_blocks_t process_data_blocks;
+ amdtp_stream_process_ctx_payloads_t process_ctx_payloads;
+
+ // For domain.
+ int channel;
+ int speed;
+ struct list_head list;
};
int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit,
enum amdtp_stream_direction dir, enum cip_flags flags,
unsigned int fmt,
- amdtp_stream_process_data_blocks_t process_data_blocks,
+ amdtp_stream_process_ctx_payloads_t process_ctx_payloads,
unsigned int protocol_size);
void amdtp_stream_destroy(struct amdtp_stream *s);
@@ -160,9 +188,7 @@
unsigned int data_block_quadlets);
unsigned int amdtp_stream_get_max_payload(struct amdtp_stream *s);
-int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed);
void amdtp_stream_update(struct amdtp_stream *s);
-void amdtp_stream_stop(struct amdtp_stream *s);
int amdtp_stream_add_pcm_hw_constraints(struct amdtp_stream *s,
struct snd_pcm_runtime *runtime);
@@ -244,4 +270,17 @@
msecs_to_jiffies(timeout)) > 0;
}
+struct amdtp_domain {
+ struct list_head streams;
+};
+
+int amdtp_domain_init(struct amdtp_domain *d);
+void amdtp_domain_destroy(struct amdtp_domain *d);
+
+int amdtp_domain_add_stream(struct amdtp_domain *d, struct amdtp_stream *s,
+ int channel, int speed);
+
+int amdtp_domain_start(struct amdtp_domain *d);
+void amdtp_domain_stop(struct amdtp_domain *d);
+
#endif
diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c
index 9367635..976d8cb 100644
--- a/sound/firewire/bebob/bebob.c
+++ b/sound/firewire/bebob/bebob.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* bebob.c - a part of driver for BeBoB based devices
*
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
/*
@@ -126,23 +125,6 @@
return err;
}
-static void bebob_free(struct snd_bebob *bebob)
-{
- snd_bebob_stream_destroy_duplex(bebob);
- fw_unit_put(bebob->unit);
-
- kfree(bebob->maudio_special_quirk);
-
- mutex_destroy(&bebob->mutex);
- kfree(bebob);
-}
-
-/*
- * This module releases the FireWire unit data after all ALSA character devices
- * are released by applications. This is for releasing stream data or finishing
- * transactions safely. Thus at returning from .remove(), this module still keep
- * references for the unit.
- */
static void
bebob_card_free(struct snd_card *card)
{
@@ -152,7 +134,7 @@
clear_bit(bebob->card_index, devices_used);
mutex_unlock(&devices_mutex);
- bebob_free(card->private_data);
+ snd_bebob_stream_destroy_duplex(bebob);
}
static const struct snd_bebob_spec *
@@ -192,7 +174,6 @@
return;
mutex_lock(&devices_mutex);
-
for (card_index = 0; card_index < SNDRV_CARDS; card_index++) {
if (!test_bit(card_index, devices_used) && enable[card_index])
break;
@@ -208,6 +189,11 @@
mutex_unlock(&devices_mutex);
return;
}
+ set_bit(card_index, devices_used);
+ mutex_unlock(&devices_mutex);
+
+ bebob->card->private_free = bebob_card_free;
+ bebob->card->private_data = bebob;
err = name_device(bebob);
if (err < 0)
@@ -248,23 +234,10 @@
if (err < 0)
goto error;
- set_bit(card_index, devices_used);
- mutex_unlock(&devices_mutex);
-
- /*
- * After registered, bebob instance can be released corresponding to
- * releasing the sound card instance.
- */
- bebob->card->private_free = bebob_card_free;
- bebob->card->private_data = bebob;
bebob->registered = true;
return;
error:
- mutex_unlock(&devices_mutex);
- snd_bebob_stream_destroy_duplex(bebob);
- kfree(bebob->maudio_special_quirk);
- bebob->maudio_special_quirk = NULL;
snd_card_free(bebob->card);
dev_info(&bebob->unit->device,
"Sound card registration failed: %d\n", err);
@@ -295,15 +268,15 @@
}
/* Allocate this independent of sound card instance. */
- bebob = kzalloc(sizeof(struct snd_bebob), GFP_KERNEL);
- if (bebob == NULL)
+ bebob = devm_kzalloc(&unit->device, sizeof(struct snd_bebob),
+ GFP_KERNEL);
+ if (!bebob)
return -ENOMEM;
-
bebob->unit = fw_unit_get(unit);
- bebob->entry = entry;
- bebob->spec = spec;
dev_set_drvdata(&unit->device, bebob);
+ bebob->entry = entry;
+ bebob->spec = spec;
mutex_init(&bebob->mutex);
spin_lock_init(&bebob->lock);
init_waitqueue_head(&bebob->hwdep_wait);
@@ -379,12 +352,12 @@
cancel_delayed_work_sync(&bebob->dwork);
if (bebob->registered) {
- /* No need to wait for releasing card object in this context. */
- snd_card_free_when_closed(bebob->card);
- } else {
- /* Don't forget this case. */
- bebob_free(bebob);
+ // Block till all of ALSA character devices are released.
+ snd_card_free(bebob->card);
}
+
+ mutex_destroy(&bebob->mutex);
+ fw_unit_put(bebob->unit);
}
static const struct snd_bebob_rate_spec normal_rate_spec = {
@@ -434,7 +407,7 @@
/* Apogee Electronics, DA/AD/DD-16X (X-FireWire card) */
SND_BEBOB_DEV_ENTRY(VEN_APOGEE, 0x00010048, &spec_normal),
/* Apogee Electronics, Ensemble */
- SND_BEBOB_DEV_ENTRY(VEN_APOGEE, 0x00001eee, &spec_normal),
+ SND_BEBOB_DEV_ENTRY(VEN_APOGEE, 0x01eeee, &spec_normal),
/* ESI, Quatafire610 */
SND_BEBOB_DEV_ENTRY(VEN_ESI, 0x00010064, &spec_normal),
/* AcousticReality, eARMasterOne */
@@ -474,7 +447,19 @@
/* Focusrite, SaffirePro 26 I/O */
SND_BEBOB_DEV_ENTRY(VEN_FOCUSRITE, 0x00000003, &saffirepro_26_spec),
/* Focusrite, SaffirePro 10 I/O */
- SND_BEBOB_DEV_ENTRY(VEN_FOCUSRITE, 0x00000006, &saffirepro_10_spec),
+ {
+ // The combination of vendor_id and model_id is the same as the
+ // same as the one of Liquid Saffire 56.
+ .match_flags = IEEE1394_MATCH_VENDOR_ID |
+ IEEE1394_MATCH_MODEL_ID |
+ IEEE1394_MATCH_SPECIFIER_ID |
+ IEEE1394_MATCH_VERSION,
+ .vendor_id = VEN_FOCUSRITE,
+ .model_id = 0x000006,
+ .specifier_id = 0x00a02d,
+ .version = 0x010001,
+ .driver_data = (kernel_ulong_t)&saffirepro_10_spec,
+ },
/* Focusrite, Saffire(no label and LE) */
SND_BEBOB_DEV_ENTRY(VEN_FOCUSRITE, MODEL_FOCUSRITE_SAFFIRE_BOTH,
&saffire_spec),
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
index df1b1e9..356d6ba 100644
--- a/sound/firewire/bebob/bebob.h
+++ b/sound/firewire/bebob/bebob.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* bebob.h - a part of driver for BeBoB based devices
*
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#ifndef SOUND_BEBOB_H_INCLUDED
@@ -93,8 +92,6 @@
unsigned int midi_input_ports;
unsigned int midi_output_ports;
- bool connected;
-
struct amdtp_stream tx_stream;
struct amdtp_stream rx_stream;
struct cmp_connection out_conn;
@@ -118,6 +115,8 @@
/* For BeBoB version quirk. */
unsigned int version;
+
+ struct amdtp_domain domain;
};
static inline int
@@ -218,7 +217,8 @@
enum snd_bebob_clock_type *src);
int snd_bebob_stream_discover(struct snd_bebob *bebob);
int snd_bebob_stream_init_duplex(struct snd_bebob *bebob);
-int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, unsigned int rate);
+int snd_bebob_stream_reserve_duplex(struct snd_bebob *bebob, unsigned int rate);
+int snd_bebob_stream_start_duplex(struct snd_bebob *bebob);
void snd_bebob_stream_stop_duplex(struct snd_bebob *bebob);
void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob);
diff --git a/sound/firewire/bebob/bebob_command.c b/sound/firewire/bebob/bebob_command.c
index f9b4225..e276ab8 100644
--- a/sound/firewire/bebob/bebob_command.c
+++ b/sound/firewire/bebob/bebob_command.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* bebob_command.c - driver for BeBoB based devices
*
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "./bebob.h"
diff --git a/sound/firewire/bebob/bebob_focusrite.c b/sound/firewire/bebob/bebob_focusrite.c
index 52b8b61..06d6a37 100644
--- a/sound/firewire/bebob/bebob_focusrite.c
+++ b/sound/firewire/bebob/bebob_focusrite.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* bebob_focusrite.c - a part of driver for BeBoB based devices
*
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "./bebob.h"
@@ -28,6 +27,8 @@
#define SAFFIRE_CLOCK_SOURCE_SPDIF 1
/* clock sources as returned from register of Saffire Pro 10 and 26 */
+#define SAFFIREPRO_CLOCK_SOURCE_SELECT_MASK 0x000000ff
+#define SAFFIREPRO_CLOCK_SOURCE_DETECT_MASK 0x0000ff00
#define SAFFIREPRO_CLOCK_SOURCE_INTERNAL 0
#define SAFFIREPRO_CLOCK_SOURCE_SKIP 1 /* never used on hardware */
#define SAFFIREPRO_CLOCK_SOURCE_SPDIF 2
@@ -190,6 +191,7 @@
map = saffirepro_clk_maps[1];
/* In a case that this driver cannot handle the value of register. */
+ value &= SAFFIREPRO_CLOCK_SOURCE_SELECT_MASK;
if (value >= SAFFIREPRO_CLOCK_SOURCE_COUNT || map[value] < 0) {
err = -EIO;
goto end;
diff --git a/sound/firewire/bebob/bebob_hwdep.c b/sound/firewire/bebob/bebob_hwdep.c
index 04c321e..45b740f 100644
--- a/sound/firewire/bebob/bebob_hwdep.c
+++ b/sound/firewire/bebob/bebob_hwdep.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* bebob_hwdep.c - a part of driver for BeBoB based devices
*
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
/*
diff --git a/sound/firewire/bebob/bebob_maudio.c b/sound/firewire/bebob/bebob_maudio.c
index c266997..177699e 100644
--- a/sound/firewire/bebob/bebob_maudio.c
+++ b/sound/firewire/bebob/bebob_maudio.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* bebob_maudio.c - a part of driver for BeBoB based devices
*
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "./bebob.h"
@@ -261,8 +260,9 @@
struct special_params *params;
int err;
- params = kzalloc(sizeof(struct special_params), GFP_KERNEL);
- if (params == NULL)
+ params = devm_kzalloc(&bebob->card->card_dev,
+ sizeof(struct special_params), GFP_KERNEL);
+ if (!params)
return -ENOMEM;
mutex_lock(&bebob->mutex);
diff --git a/sound/firewire/bebob/bebob_midi.c b/sound/firewire/bebob/bebob_midi.c
index 3befa3e..4d8805f 100644
--- a/sound/firewire/bebob/bebob_midi.c
+++ b/sound/firewire/bebob/bebob_midi.c
@@ -1,65 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* bebob_midi.c - a part of driver for BeBoB based devices
*
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "bebob.h"
-static int midi_capture_open(struct snd_rawmidi_substream *substream)
+static int midi_open(struct snd_rawmidi_substream *substream)
{
struct snd_bebob *bebob = substream->rmidi->private_data;
int err;
err = snd_bebob_stream_lock_try(bebob);
if (err < 0)
- goto end;
+ return err;
mutex_lock(&bebob->mutex);
- bebob->substreams_counter++;
- err = snd_bebob_stream_start_duplex(bebob, 0);
+ err = snd_bebob_stream_reserve_duplex(bebob, 0);
+ if (err >= 0) {
+ ++bebob->substreams_counter;
+ err = snd_bebob_stream_start_duplex(bebob);
+ if (err < 0)
+ --bebob->substreams_counter;
+ }
mutex_unlock(&bebob->mutex);
if (err < 0)
snd_bebob_stream_lock_release(bebob);
-end:
+
return err;
}
-static int midi_playback_open(struct snd_rawmidi_substream *substream)
-{
- struct snd_bebob *bebob = substream->rmidi->private_data;
- int err;
-
- err = snd_bebob_stream_lock_try(bebob);
- if (err < 0)
- goto end;
-
- mutex_lock(&bebob->mutex);
- bebob->substreams_counter++;
- err = snd_bebob_stream_start_duplex(bebob, 0);
- mutex_unlock(&bebob->mutex);
- if (err < 0)
- snd_bebob_stream_lock_release(bebob);
-end:
- return err;
-}
-
-static int midi_capture_close(struct snd_rawmidi_substream *substream)
-{
- struct snd_bebob *bebob = substream->rmidi->private_data;
-
- mutex_lock(&bebob->mutex);
- bebob->substreams_counter--;
- snd_bebob_stream_stop_duplex(bebob);
- mutex_unlock(&bebob->mutex);
-
- snd_bebob_stream_lock_release(bebob);
- return 0;
-}
-
-static int midi_playback_close(struct snd_rawmidi_substream *substream)
+static int midi_close(struct snd_rawmidi_substream *substream)
{
struct snd_bebob *bebob = substream->rmidi->private_data;
@@ -121,13 +93,13 @@
int snd_bebob_create_midi_devices(struct snd_bebob *bebob)
{
static const struct snd_rawmidi_ops capture_ops = {
- .open = midi_capture_open,
- .close = midi_capture_close,
+ .open = midi_open,
+ .close = midi_close,
.trigger = midi_capture_trigger,
};
static const struct snd_rawmidi_ops playback_ops = {
- .open = midi_playback_open,
- .close = midi_playback_close,
+ .open = midi_open,
+ .close = midi_close,
.trigger = midi_playback_trigger,
};
struct snd_rawmidi *rmidi;
diff --git a/sound/firewire/bebob/bebob_pcm.c b/sound/firewire/bebob/bebob_pcm.c
index ea9b864..0fb9eed 100644
--- a/sound/firewire/bebob/bebob_pcm.c
+++ b/sound/firewire/bebob/bebob_pcm.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* bebob_pcm.c - a part of driver for BeBoB based devices
*
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "./bebob.h"
@@ -185,9 +184,8 @@
return 0;
}
-static int
-pcm_capture_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
+static int pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
{
struct snd_bebob *bebob = substream->private_data;
int err;
@@ -198,61 +196,30 @@
return err;
if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
+ unsigned int rate = params_rate(hw_params);
+
mutex_lock(&bebob->mutex);
- bebob->substreams_counter++;
+ err = snd_bebob_stream_reserve_duplex(bebob, rate);
+ if (err >= 0)
+ ++bebob->substreams_counter;
mutex_unlock(&bebob->mutex);
}
- return 0;
-}
-static int
-pcm_playback_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
-{
- struct snd_bebob *bebob = substream->private_data;
- int err;
-
- err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
- params_buffer_bytes(hw_params));
- if (err < 0)
- return err;
-
- if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
- mutex_lock(&bebob->mutex);
- bebob->substreams_counter++;
- mutex_unlock(&bebob->mutex);
- }
-
- return 0;
+ return err;
}
-static int
-pcm_capture_hw_free(struct snd_pcm_substream *substream)
+static int pcm_hw_free(struct snd_pcm_substream *substream)
{
struct snd_bebob *bebob = substream->private_data;
- if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) {
- mutex_lock(&bebob->mutex);
+ mutex_lock(&bebob->mutex);
+
+ if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN)
bebob->substreams_counter--;
- mutex_unlock(&bebob->mutex);
- }
snd_bebob_stream_stop_duplex(bebob);
- return snd_pcm_lib_free_vmalloc_buffer(substream);
-}
-static int
-pcm_playback_hw_free(struct snd_pcm_substream *substream)
-{
- struct snd_bebob *bebob = substream->private_data;
-
- if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) {
- mutex_lock(&bebob->mutex);
- bebob->substreams_counter--;
- mutex_unlock(&bebob->mutex);
- }
-
- snd_bebob_stream_stop_duplex(bebob);
+ mutex_unlock(&bebob->mutex);
return snd_pcm_lib_free_vmalloc_buffer(substream);
}
@@ -261,10 +228,9 @@
pcm_capture_prepare(struct snd_pcm_substream *substream)
{
struct snd_bebob *bebob = substream->private_data;
- struct snd_pcm_runtime *runtime = substream->runtime;
int err;
- err = snd_bebob_stream_start_duplex(bebob, runtime->rate);
+ err = snd_bebob_stream_start_duplex(bebob);
if (err >= 0)
amdtp_stream_pcm_prepare(&bebob->tx_stream);
@@ -274,10 +240,9 @@
pcm_playback_prepare(struct snd_pcm_substream *substream)
{
struct snd_bebob *bebob = substream->private_data;
- struct snd_pcm_runtime *runtime = substream->runtime;
int err;
- err = snd_bebob_stream_start_duplex(bebob, runtime->rate);
+ err = snd_bebob_stream_start_duplex(bebob);
if (err >= 0)
amdtp_stream_pcm_prepare(&bebob->rx_stream);
@@ -354,8 +319,8 @@
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,
- .hw_params = pcm_capture_hw_params,
- .hw_free = pcm_capture_hw_free,
+ .hw_params = pcm_hw_params,
+ .hw_free = pcm_hw_free,
.prepare = pcm_capture_prepare,
.trigger = pcm_capture_trigger,
.pointer = pcm_capture_pointer,
@@ -366,8 +331,8 @@
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,
- .hw_params = pcm_playback_hw_params,
- .hw_free = pcm_playback_hw_free,
+ .hw_params = pcm_hw_params,
+ .hw_free = pcm_hw_free,
.prepare = pcm_playback_prepare,
.trigger = pcm_playback_trigger,
.pointer = pcm_playback_pointer,
diff --git a/sound/firewire/bebob/bebob_proc.c b/sound/firewire/bebob/bebob_proc.c
index 8096891..f659b88 100644
--- a/sound/firewire/bebob/bebob_proc.c
+++ b/sound/firewire/bebob/bebob_proc.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* bebob_proc.c - a part of driver for BeBoB based devices
*
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "./bebob.h"
@@ -163,12 +162,8 @@
struct snd_info_entry *entry;
entry = snd_info_create_card_entry(bebob->card, name, root);
- if (entry == NULL)
- return;
-
- snd_info_set_text_ops(entry, bebob, op);
- if (snd_info_register(entry) < 0)
- snd_info_free_entry(entry);
+ if (entry)
+ snd_info_set_text_ops(entry, bebob, op);
}
void snd_bebob_proc_init(struct snd_bebob *bebob)
@@ -184,10 +179,6 @@
if (root == NULL)
return;
root->mode = S_IFDIR | 0555;
- if (snd_info_register(root) < 0) {
- snd_info_free_entry(root);
- return;
- }
add_node(bebob, root, "clock", proc_read_clock);
add_node(bebob, root, "firmware", proc_read_hw_info);
diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c
index 4d3034a..6c1497d 100644
--- a/sound/firewire/bebob/bebob_stream.c
+++ b/sound/firewire/bebob/bebob_stream.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* bebob_stream.c - a part of driver for BeBoB based devices
*
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "./bebob.h"
@@ -253,8 +252,7 @@
return err;
}
-static unsigned int
-map_data_channels(struct snd_bebob *bebob, struct amdtp_stream *s)
+static int map_data_channels(struct snd_bebob *bebob, struct amdtp_stream *s)
{
unsigned int sec, sections, ch, channels;
unsigned int pcm, midi, location;
@@ -377,24 +375,6 @@
}
static int
-init_both_connections(struct snd_bebob *bebob)
-{
- int err;
-
- err = cmp_connection_init(&bebob->in_conn,
- bebob->unit, CMP_INPUT, 0);
- if (err < 0)
- goto end;
-
- err = cmp_connection_init(&bebob->out_conn,
- bebob->unit, CMP_OUTPUT, 0);
- if (err < 0)
- cmp_connection_destroy(&bebob->in_conn);
-end:
- return err;
-}
-
-static int
check_connection_used_by_others(struct snd_bebob *bebob, struct amdtp_stream *s)
{
struct cmp_connection *conn;
@@ -418,49 +398,21 @@
return err;
}
-static int
-make_both_connections(struct snd_bebob *bebob, unsigned int rate)
+static int make_both_connections(struct snd_bebob *bebob)
{
- int index, pcm_channels, midi_channels, err = 0;
+ int err = 0;
- if (bebob->connected)
- goto end;
+ err = cmp_connection_establish(&bebob->out_conn);
+ if (err < 0)
+ return err;
- /* confirm params for both streams */
- err = get_formation_index(rate, &index);
- if (err < 0)
- goto end;
- pcm_channels = bebob->tx_stream_formations[index].pcm;
- midi_channels = bebob->tx_stream_formations[index].midi;
- err = amdtp_am824_set_parameters(&bebob->tx_stream, rate,
- pcm_channels, midi_channels * 8,
- false);
- if (err < 0)
- goto end;
-
- pcm_channels = bebob->rx_stream_formations[index].pcm;
- midi_channels = bebob->rx_stream_formations[index].midi;
- err = amdtp_am824_set_parameters(&bebob->rx_stream, rate,
- pcm_channels, midi_channels * 8,
- false);
- if (err < 0)
- goto end;
-
- /* establish connections for both streams */
- err = cmp_connection_establish(&bebob->out_conn,
- amdtp_stream_get_max_payload(&bebob->tx_stream));
- if (err < 0)
- goto end;
- err = cmp_connection_establish(&bebob->in_conn,
- amdtp_stream_get_max_payload(&bebob->rx_stream));
+ err = cmp_connection_establish(&bebob->in_conn);
if (err < 0) {
cmp_connection_break(&bebob->out_conn);
- goto end;
+ return err;
}
- bebob->connected = true;
-end:
- return err;
+ return 0;
}
static void
@@ -469,23 +421,13 @@
cmp_connection_break(&bebob->in_conn);
cmp_connection_break(&bebob->out_conn);
- bebob->connected = false;
-
/* These models seems to be in transition state for a longer time. */
if (bebob->maudio_special_quirk != NULL)
msleep(200);
}
-static void
-destroy_both_connections(struct snd_bebob *bebob)
-{
- cmp_connection_destroy(&bebob->in_conn);
- cmp_connection_destroy(&bebob->out_conn);
-}
-
static int
-start_stream(struct snd_bebob *bebob, struct amdtp_stream *stream,
- unsigned int rate)
+start_stream(struct snd_bebob *bebob, struct amdtp_stream *stream)
{
struct cmp_connection *conn;
int err = 0;
@@ -502,198 +444,250 @@
goto end;
}
- /* start amdtp stream */
- err = amdtp_stream_start(stream,
- conn->resources.channel,
- conn->speed);
+ // start amdtp stream.
+ err = amdtp_domain_add_stream(&bebob->domain, stream,
+ conn->resources.channel, conn->speed);
end:
return err;
}
+static int init_stream(struct snd_bebob *bebob, struct amdtp_stream *stream)
+{
+ enum amdtp_stream_direction dir_stream;
+ struct cmp_connection *conn;
+ enum cmp_direction dir_conn;
+ int err;
+
+ if (stream == &bebob->tx_stream) {
+ dir_stream = AMDTP_IN_STREAM;
+ conn = &bebob->out_conn;
+ dir_conn = CMP_OUTPUT;
+ } else {
+ dir_stream = AMDTP_OUT_STREAM;
+ conn = &bebob->in_conn;
+ dir_conn = CMP_INPUT;
+ }
+
+ err = cmp_connection_init(conn, bebob->unit, dir_conn, 0);
+ if (err < 0)
+ return err;
+
+ err = amdtp_am824_init(stream, bebob->unit, dir_stream, CIP_BLOCKING);
+ if (err < 0) {
+ cmp_connection_destroy(conn);
+ return err;
+ }
+
+ if (stream == &bebob->tx_stream) {
+ // BeBoB v3 transfers packets with these qurks:
+ // - In the beginning of streaming, the value of dbc is
+ // incremented even if no data blocks are transferred.
+ // - The value of dbc is reset suddenly.
+ if (bebob->version > 2)
+ bebob->tx_stream.flags |= CIP_EMPTY_HAS_WRONG_DBC |
+ CIP_SKIP_DBC_ZERO_CHECK;
+
+ // At high sampling rate, M-Audio special firmware transmits
+ // empty packet with the value of dbc incremented by 8 but the
+ // others are valid to IEC 61883-1.
+ if (bebob->maudio_special_quirk)
+ bebob->tx_stream.flags |= CIP_EMPTY_HAS_WRONG_DBC;
+ }
+
+ return 0;
+}
+
+static void destroy_stream(struct snd_bebob *bebob, struct amdtp_stream *stream)
+{
+ amdtp_stream_destroy(stream);
+
+ if (stream == &bebob->tx_stream)
+ cmp_connection_destroy(&bebob->out_conn);
+ else
+ cmp_connection_destroy(&bebob->in_conn);
+}
+
int snd_bebob_stream_init_duplex(struct snd_bebob *bebob)
{
int err;
- err = init_both_connections(bebob);
+ err = init_stream(bebob, &bebob->tx_stream);
if (err < 0)
- goto end;
+ return err;
- err = amdtp_am824_init(&bebob->tx_stream, bebob->unit,
- AMDTP_IN_STREAM, CIP_BLOCKING);
+ err = init_stream(bebob, &bebob->rx_stream);
if (err < 0) {
- amdtp_stream_destroy(&bebob->tx_stream);
- destroy_both_connections(bebob);
- goto end;
+ destroy_stream(bebob, &bebob->tx_stream);
+ return err;
}
- /*
- * BeBoB v3 transfers packets with these qurks:
- * - In the beginning of streaming, the value of dbc is incremented
- * even if no data blocks are transferred.
- * - The value of dbc is reset suddenly.
- */
- if (bebob->version > 2)
- bebob->tx_stream.flags |= CIP_EMPTY_HAS_WRONG_DBC |
- CIP_SKIP_DBC_ZERO_CHECK;
-
- /*
- * At high sampling rate, M-Audio special firmware transmits empty
- * packet with the value of dbc incremented by 8 but the others are
- * valid to IEC 61883-1.
- */
- if (bebob->maudio_special_quirk)
- bebob->tx_stream.flags |= CIP_EMPTY_HAS_WRONG_DBC;
-
- err = amdtp_am824_init(&bebob->rx_stream, bebob->unit,
- AMDTP_OUT_STREAM, CIP_BLOCKING);
+ err = amdtp_domain_init(&bebob->domain);
if (err < 0) {
- amdtp_stream_destroy(&bebob->tx_stream);
- amdtp_stream_destroy(&bebob->rx_stream);
- destroy_both_connections(bebob);
+ destroy_stream(bebob, &bebob->tx_stream);
+ destroy_stream(bebob, &bebob->rx_stream);
}
-end:
+
return err;
}
-int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, unsigned int rate)
+static int keep_resources(struct snd_bebob *bebob, struct amdtp_stream *stream,
+ unsigned int rate, unsigned int index)
{
- const struct snd_bebob_rate_spec *rate_spec = bebob->spec->rate;
+ struct snd_bebob_stream_formation *formation;
+ struct cmp_connection *conn;
+ int err;
+
+ if (stream == &bebob->tx_stream) {
+ formation = bebob->tx_stream_formations + index;
+ conn = &bebob->out_conn;
+ } else {
+ formation = bebob->rx_stream_formations + index;
+ conn = &bebob->in_conn;
+ }
+
+ err = amdtp_am824_set_parameters(stream, rate, formation->pcm,
+ formation->midi, false);
+ if (err < 0)
+ return err;
+
+ return cmp_connection_reserve(conn, amdtp_stream_get_max_payload(stream));
+}
+
+int snd_bebob_stream_reserve_duplex(struct snd_bebob *bebob, unsigned int rate)
+{
unsigned int curr_rate;
- int err = 0;
+ int err;
- /* Need no substreams */
- if (bebob->substreams_counter == 0)
- goto end;
-
- /*
- * Considering JACK/FFADO streaming:
- * TODO: This can be removed hwdep functionality becomes popular.
- */
+ // Considering JACK/FFADO streaming:
+ // TODO: This can be removed hwdep functionality becomes popular.
err = check_connection_used_by_others(bebob, &bebob->rx_stream);
if (err < 0)
- goto end;
+ return err;
- /*
- * packet queueing error or detecting discontinuity
- *
- * At bus reset, connections should not be broken here. So streams need
- * to be re-started. This is a reason to use SKIP_INIT_DBC_CHECK flag.
- */
- if (amdtp_streaming_error(&bebob->rx_stream))
- amdtp_stream_stop(&bebob->rx_stream);
- if (amdtp_streaming_error(&bebob->tx_stream))
- amdtp_stream_stop(&bebob->tx_stream);
- if (!amdtp_stream_running(&bebob->rx_stream) &&
- !amdtp_stream_running(&bebob->tx_stream))
- break_both_connections(bebob);
-
- /* stop streams if rate is different */
- err = rate_spec->get(bebob, &curr_rate);
- if (err < 0) {
- dev_err(&bebob->unit->device,
- "fail to get sampling rate: %d\n", err);
- goto end;
- }
+ err = bebob->spec->rate->get(bebob, &curr_rate);
+ if (err < 0)
+ return err;
if (rate == 0)
rate = curr_rate;
- if (rate != curr_rate) {
- amdtp_stream_stop(&bebob->rx_stream);
- amdtp_stream_stop(&bebob->tx_stream);
+ if (curr_rate != rate) {
+ amdtp_domain_stop(&bebob->domain);
+ break_both_connections(bebob);
+
+ cmp_connection_release(&bebob->out_conn);
+ cmp_connection_release(&bebob->in_conn);
+ }
+
+ if (bebob->substreams_counter == 0 || curr_rate != rate) {
+ unsigned int index;
+
+ // NOTE:
+ // If establishing connections at first, Yamaha GO46
+ // (and maybe Terratec X24) don't generate sound.
+ //
+ // For firmware customized by M-Audio, refer to next NOTE.
+ err = bebob->spec->rate->set(bebob, rate);
+ if (err < 0) {
+ dev_err(&bebob->unit->device,
+ "fail to set sampling rate: %d\n",
+ err);
+ return err;
+ }
+
+ err = get_formation_index(rate, &index);
+ if (err < 0)
+ return err;
+
+ err = keep_resources(bebob, &bebob->tx_stream, rate, index);
+ if (err < 0)
+ return err;
+
+ err = keep_resources(bebob, &bebob->rx_stream, rate, index);
+ if (err < 0) {
+ cmp_connection_release(&bebob->out_conn);
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+int snd_bebob_stream_start_duplex(struct snd_bebob *bebob)
+{
+ int err;
+
+ // Need no substreams.
+ if (bebob->substreams_counter == 0)
+ return -EIO;
+
+ // packet queueing error or detecting discontinuity
+ if (amdtp_streaming_error(&bebob->rx_stream) ||
+ amdtp_streaming_error(&bebob->tx_stream)) {
+ amdtp_domain_stop(&bebob->domain);
break_both_connections(bebob);
}
- /* master should be always running */
if (!amdtp_stream_running(&bebob->rx_stream)) {
- /*
- * NOTE:
- * If establishing connections at first, Yamaha GO46
- * (and maybe Terratec X24) don't generate sound.
- *
- * For firmware customized by M-Audio, refer to next NOTE.
- */
- if (bebob->maudio_special_quirk == NULL) {
- err = rate_spec->set(bebob, rate);
- if (err < 0) {
- dev_err(&bebob->unit->device,
- "fail to set sampling rate: %d\n",
- err);
- goto end;
- }
+ unsigned int curr_rate;
+
+ if (bebob->maudio_special_quirk) {
+ err = bebob->spec->rate->get(bebob, &curr_rate);
+ if (err < 0)
+ return err;
}
- err = make_both_connections(bebob, rate);
+ err = make_both_connections(bebob);
if (err < 0)
- goto end;
+ return err;
- err = start_stream(bebob, &bebob->rx_stream, rate);
- if (err < 0) {
- dev_err(&bebob->unit->device,
- "fail to run AMDTP master stream:%d\n", err);
- break_both_connections(bebob);
- goto end;
- }
+ err = start_stream(bebob, &bebob->rx_stream);
+ if (err < 0)
+ goto error;
- /*
- * NOTE:
- * The firmware customized by M-Audio uses these commands to
- * start transmitting stream. This is not usual way.
- */
- if (bebob->maudio_special_quirk != NULL) {
- err = rate_spec->set(bebob, rate);
+ err = start_stream(bebob, &bebob->tx_stream);
+ if (err < 0)
+ goto error;
+
+ err = amdtp_domain_start(&bebob->domain);
+ if (err < 0)
+ goto error;
+
+ // NOTE:
+ // The firmware customized by M-Audio uses these commands to
+ // start transmitting stream. This is not usual way.
+ if (bebob->maudio_special_quirk) {
+ err = bebob->spec->rate->set(bebob, curr_rate);
if (err < 0) {
dev_err(&bebob->unit->device,
"fail to ensure sampling rate: %d\n",
err);
- amdtp_stream_stop(&bebob->rx_stream);
- break_both_connections(bebob);
- goto end;
+ goto error;
}
}
- /* wait first callback */
if (!amdtp_stream_wait_callback(&bebob->rx_stream,
+ CALLBACK_TIMEOUT) ||
+ !amdtp_stream_wait_callback(&bebob->tx_stream,
CALLBACK_TIMEOUT)) {
- amdtp_stream_stop(&bebob->rx_stream);
- break_both_connections(bebob);
err = -ETIMEDOUT;
- goto end;
+ goto error;
}
}
- /* start slave if needed */
- if (!amdtp_stream_running(&bebob->tx_stream)) {
- err = start_stream(bebob, &bebob->tx_stream, rate);
- if (err < 0) {
- dev_err(&bebob->unit->device,
- "fail to run AMDTP slave stream:%d\n", err);
- amdtp_stream_stop(&bebob->rx_stream);
- break_both_connections(bebob);
- goto end;
- }
-
- /* wait first callback */
- if (!amdtp_stream_wait_callback(&bebob->tx_stream,
- CALLBACK_TIMEOUT)) {
- amdtp_stream_stop(&bebob->tx_stream);
- amdtp_stream_stop(&bebob->rx_stream);
- break_both_connections(bebob);
- err = -ETIMEDOUT;
- }
- }
-end:
+ return 0;
+error:
+ amdtp_domain_stop(&bebob->domain);
+ break_both_connections(bebob);
return err;
}
void snd_bebob_stream_stop_duplex(struct snd_bebob *bebob)
{
if (bebob->substreams_counter == 0) {
- amdtp_stream_pcm_abort(&bebob->rx_stream);
- amdtp_stream_stop(&bebob->rx_stream);
-
- amdtp_stream_pcm_abort(&bebob->tx_stream);
- amdtp_stream_stop(&bebob->tx_stream);
-
+ amdtp_domain_stop(&bebob->domain);
break_both_connections(bebob);
+
+ cmp_connection_release(&bebob->out_conn);
+ cmp_connection_release(&bebob->in_conn);
}
}
@@ -703,10 +697,10 @@
*/
void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob)
{
- amdtp_stream_destroy(&bebob->rx_stream);
- amdtp_stream_destroy(&bebob->tx_stream);
+ amdtp_domain_destroy(&bebob->domain);
- destroy_both_connections(bebob);
+ destroy_stream(bebob, &bebob->tx_stream);
+ destroy_stream(bebob, &bebob->rx_stream);
}
/*
diff --git a/sound/firewire/bebob/bebob_terratec.c b/sound/firewire/bebob/bebob_terratec.c
index 9770c21..c2dd074 100644
--- a/sound/firewire/bebob/bebob_terratec.c
+++ b/sound/firewire/bebob/bebob_terratec.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* bebob_terratec.c - a part of driver for BeBoB based devices
*
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "./bebob.h"
diff --git a/sound/firewire/bebob/bebob_yamaha_terratec.c b/sound/firewire/bebob/bebob_yamaha_terratec.c
index 8bd78fe..ce1975e 100644
--- a/sound/firewire/bebob/bebob_yamaha_terratec.c
+++ b/sound/firewire/bebob/bebob_yamaha_terratec.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* bebob_yamaha.c - a part of driver for BeBoB based devices
*
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "./bebob.h"
diff --git a/sound/firewire/cmp.c b/sound/firewire/cmp.c
index ae3bc19..14abbe7 100644
--- a/sound/firewire/cmp.c
+++ b/sound/firewire/cmp.c
@@ -1,8 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Connection Management Procedures (IEC 61883-1) helper functions
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include <linux/device.h>
@@ -185,6 +185,37 @@
}
EXPORT_SYMBOL(cmp_connection_destroy);
+int cmp_connection_reserve(struct cmp_connection *c,
+ unsigned int max_payload_bytes)
+{
+ int err;
+
+ mutex_lock(&c->mutex);
+
+ if (WARN_ON(c->resources.allocated)) {
+ err = -EBUSY;
+ goto end;
+ }
+
+ c->speed = min(c->max_speed,
+ fw_parent_device(c->resources.unit)->max_speed);
+
+ err = fw_iso_resources_allocate(&c->resources, max_payload_bytes,
+ c->speed);
+end:
+ mutex_unlock(&c->mutex);
+
+ return err;
+}
+EXPORT_SYMBOL(cmp_connection_reserve);
+
+void cmp_connection_release(struct cmp_connection *c)
+{
+ mutex_lock(&c->mutex);
+ fw_iso_resources_free(&c->resources);
+ mutex_unlock(&c->mutex);
+}
+EXPORT_SYMBOL(cmp_connection_release);
static __be32 ipcr_set_modify(struct cmp_connection *c, __be32 ipcr)
{
@@ -270,25 +301,18 @@
* When this function succeeds, the caller is responsible for starting
* transmitting packets.
*/
-int cmp_connection_establish(struct cmp_connection *c,
- unsigned int max_payload_bytes)
+int cmp_connection_establish(struct cmp_connection *c)
{
int err;
- if (WARN_ON(c->connected))
- return -EISCONN;
-
- c->speed = min(c->max_speed,
- fw_parent_device(c->resources.unit)->max_speed);
-
mutex_lock(&c->mutex);
-retry_after_bus_reset:
- err = fw_iso_resources_allocate(&c->resources,
- max_payload_bytes, c->speed);
- if (err < 0)
- goto err_mutex;
+ if (WARN_ON(c->connected)) {
+ mutex_unlock(&c->mutex);
+ return -EISCONN;
+ }
+retry_after_bus_reset:
if (c->direction == CMP_OUTPUT)
err = pcr_modify(c, opcr_set_modify, pcr_set_check,
ABORT_ON_BUS_RESET);
@@ -297,21 +321,13 @@
ABORT_ON_BUS_RESET);
if (err == -EAGAIN) {
- fw_iso_resources_free(&c->resources);
- goto retry_after_bus_reset;
+ err = fw_iso_resources_update(&c->resources);
+ if (err >= 0)
+ goto retry_after_bus_reset;
}
- if (err < 0)
- goto err_resources;
+ if (err >= 0)
+ c->connected = true;
- c->connected = true;
-
- mutex_unlock(&c->mutex);
-
- return 0;
-
-err_resources:
- fw_iso_resources_free(&c->resources);
-err_mutex:
mutex_unlock(&c->mutex);
return err;
@@ -351,14 +367,12 @@
SUCCEED_ON_BUS_RESET);
if (err < 0)
- goto err_resources;
+ goto err_unconnect;
mutex_unlock(&c->mutex);
return 0;
-err_resources:
- fw_iso_resources_free(&c->resources);
err_unconnect:
c->connected = false;
mutex_unlock(&c->mutex);
@@ -395,8 +409,6 @@
if (err < 0)
cmp_error(c, "plug is still connected\n");
- fw_iso_resources_free(&c->resources);
-
c->connected = false;
mutex_unlock(&c->mutex);
diff --git a/sound/firewire/cmp.h b/sound/firewire/cmp.h
index b60b415..26ab880 100644
--- a/sound/firewire/cmp.h
+++ b/sound/firewire/cmp.h
@@ -42,8 +42,11 @@
int cmp_connection_check_used(struct cmp_connection *connection, bool *used);
void cmp_connection_destroy(struct cmp_connection *connection);
-int cmp_connection_establish(struct cmp_connection *connection,
- unsigned int max_payload);
+int cmp_connection_reserve(struct cmp_connection *connection,
+ unsigned int max_payload);
+void cmp_connection_release(struct cmp_connection *connection);
+
+int cmp_connection_establish(struct cmp_connection *connection);
int cmp_connection_update(struct cmp_connection *connection);
void cmp_connection_break(struct cmp_connection *connection);
diff --git a/sound/firewire/dice/Makefile b/sound/firewire/dice/Makefile
index 37062a2..7a62daf 100644
--- a/sound/firewire/dice/Makefile
+++ b/sound/firewire/dice/Makefile
@@ -1,4 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
snd-dice-objs := dice-transaction.o dice-stream.o dice-proc.o dice-midi.o \
dice-pcm.o dice-hwdep.o dice.o dice-tcelectronic.o \
- dice-alesis.o dice-extension.o dice-mytek.o
+ dice-alesis.o dice-extension.o dice-mytek.o dice-presonus.o
obj-$(CONFIG_SND_DICE) += snd-dice.o
diff --git a/sound/firewire/dice/dice-alesis.c b/sound/firewire/dice/dice-alesis.c
index 218292b..f5b3252 100644
--- a/sound/firewire/dice/dice-alesis.c
+++ b/sound/firewire/dice/dice-alesis.c
@@ -15,7 +15,7 @@
static const unsigned int
alesis_io26_tx_pcm_chs[MAX_STREAMS][SND_DICE_RATE_MODE_COUNT] = {
- {10, 10, 8}, /* Tx0 = Analog + S/PDIF. */
+ {10, 10, 4}, /* Tx0 = Analog + S/PDIF. */
{16, 8, 0}, /* Tx1 = ADAT1 + ADAT2. */
};
diff --git a/sound/firewire/dice/dice-hwdep.c b/sound/firewire/dice/dice-hwdep.c
index 6498bf6..f69f799 100644
--- a/sound/firewire/dice/dice-hwdep.c
+++ b/sound/firewire/dice/dice-hwdep.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* dice_hwdep.c - a part of driver for DICE based devices
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
* Copyright (c) 2014 Takashi Sakamoto <o-takashi@sakamocchi.jp>
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "dice.h"
diff --git a/sound/firewire/dice/dice-midi.c b/sound/firewire/dice/dice-midi.c
index 84eca8a..c9e19bd 100644
--- a/sound/firewire/dice/dice-midi.c
+++ b/sound/firewire/dice/dice-midi.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* dice_midi.c - a part of driver for Dice based devices
*
* Copyright (c) 2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "dice.h"
@@ -18,8 +17,13 @@
mutex_lock(&dice->mutex);
- dice->substreams_counter++;
- err = snd_dice_stream_start_duplex(dice, 0);
+ err = snd_dice_stream_reserve_duplex(dice, 0);
+ if (err >= 0) {
+ ++dice->substreams_counter;
+ err = snd_dice_stream_start_duplex(dice);
+ if (err < 0)
+ --dice->substreams_counter;
+ }
mutex_unlock(&dice->mutex);
@@ -35,7 +39,7 @@
mutex_lock(&dice->mutex);
- dice->substreams_counter--;
+ --dice->substreams_counter;
snd_dice_stream_stop_duplex(dice);
mutex_unlock(&dice->mutex);
diff --git a/sound/firewire/dice/dice-pcm.c b/sound/firewire/dice/dice-pcm.c
index bb3ef5f..94a4dcc 100644
--- a/sound/firewire/dice/dice-pcm.c
+++ b/sound/firewire/dice/dice-pcm.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* dice_pcm.c - a part of driver for DICE based devices
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
* Copyright (c) 2014 Takashi Sakamoto <o-takashi@sakamocchi.jp>
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "dice.h"
@@ -231,8 +230,8 @@
return 0;
}
-static int capture_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
+static int pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
{
struct snd_dice *dice = substream->private_data;
int err;
@@ -243,57 +242,26 @@
return err;
if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
+ unsigned int rate = params_rate(hw_params);
+
mutex_lock(&dice->mutex);
- dice->substreams_counter++;
+ err = snd_dice_stream_reserve_duplex(dice, rate);
+ if (err >= 0)
+ ++dice->substreams_counter;
mutex_unlock(&dice->mutex);
}
- return 0;
-}
-static int playback_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
-{
- struct snd_dice *dice = substream->private_data;
- int err;
-
- err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
- params_buffer_bytes(hw_params));
- if (err < 0)
- return err;
-
- if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
- mutex_lock(&dice->mutex);
- dice->substreams_counter++;
- mutex_unlock(&dice->mutex);
- }
-
- return 0;
+ return err;
}
-static int capture_hw_free(struct snd_pcm_substream *substream)
+static int pcm_hw_free(struct snd_pcm_substream *substream)
{
struct snd_dice *dice = substream->private_data;
mutex_lock(&dice->mutex);
if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN)
- dice->substreams_counter--;
-
- snd_dice_stream_stop_duplex(dice);
-
- mutex_unlock(&dice->mutex);
-
- return snd_pcm_lib_free_vmalloc_buffer(substream);
-}
-
-static int playback_hw_free(struct snd_pcm_substream *substream)
-{
- struct snd_dice *dice = substream->private_data;
-
- mutex_lock(&dice->mutex);
-
- if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN)
- dice->substreams_counter--;
+ --dice->substreams_counter;
snd_dice_stream_stop_duplex(dice);
@@ -309,7 +277,7 @@
int err;
mutex_lock(&dice->mutex);
- err = snd_dice_stream_start_duplex(dice, substream->runtime->rate);
+ err = snd_dice_stream_start_duplex(dice);
mutex_unlock(&dice->mutex);
if (err >= 0)
amdtp_stream_pcm_prepare(stream);
@@ -323,7 +291,7 @@
int err;
mutex_lock(&dice->mutex);
- err = snd_dice_stream_start_duplex(dice, substream->runtime->rate);
+ err = snd_dice_stream_start_duplex(dice);
mutex_unlock(&dice->mutex);
if (err >= 0)
amdtp_stream_pcm_prepare(stream);
@@ -405,8 +373,8 @@
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,
- .hw_params = capture_hw_params,
- .hw_free = capture_hw_free,
+ .hw_params = pcm_hw_params,
+ .hw_free = pcm_hw_free,
.prepare = capture_prepare,
.trigger = capture_trigger,
.pointer = capture_pointer,
@@ -417,8 +385,8 @@
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,
- .hw_params = playback_hw_params,
- .hw_free = playback_hw_free,
+ .hw_params = pcm_hw_params,
+ .hw_free = pcm_hw_free,
.prepare = playback_prepare,
.trigger = playback_trigger,
.pointer = playback_pointer,
diff --git a/sound/firewire/dice/dice-presonus.c b/sound/firewire/dice/dice-presonus.c
new file mode 100644
index 0000000..503f462
--- /dev/null
+++ b/sound/firewire/dice/dice-presonus.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0
+// dice-presonus.c - a part of driver for DICE based devices
+//
+// Copyright (c) 2019 Takashi Sakamoto
+//
+// Licensed under the terms of the GNU General Public License, version 2.
+
+#include "dice.h"
+
+struct dice_presonus_spec {
+ unsigned int tx_pcm_chs[MAX_STREAMS][SND_DICE_RATE_MODE_COUNT];
+ unsigned int rx_pcm_chs[MAX_STREAMS][SND_DICE_RATE_MODE_COUNT];
+ bool has_midi;
+};
+
+static const struct dice_presonus_spec dice_presonus_firesutio = {
+ .tx_pcm_chs = {{16, 16, 0}, {10, 2, 0} },
+ .rx_pcm_chs = {{16, 16, 0}, {10, 2, 0} },
+ .has_midi = true,
+};
+
+int snd_dice_detect_presonus_formats(struct snd_dice *dice)
+{
+ static const struct {
+ u32 model_id;
+ const struct dice_presonus_spec *spec;
+ } *entry, entries[] = {
+ {0x000008, &dice_presonus_firesutio},
+ };
+ struct fw_csr_iterator it;
+ int key, val, model_id;
+ int i;
+
+ model_id = 0;
+ fw_csr_iterator_init(&it, dice->unit->directory);
+ while (fw_csr_iterator_next(&it, &key, &val)) {
+ if (key == CSR_MODEL) {
+ model_id = val;
+ break;
+ }
+ }
+
+ for (i = 0; i < ARRAY_SIZE(entries); ++i) {
+ entry = entries + i;
+ if (entry->model_id == model_id)
+ break;
+ }
+ if (i == ARRAY_SIZE(entries))
+ return -ENODEV;
+
+ memcpy(dice->tx_pcm_chs, entry->spec->tx_pcm_chs,
+ MAX_STREAMS * SND_DICE_RATE_MODE_COUNT * sizeof(unsigned int));
+ memcpy(dice->rx_pcm_chs, entry->spec->rx_pcm_chs,
+ MAX_STREAMS * SND_DICE_RATE_MODE_COUNT * sizeof(unsigned int));
+
+ if (entry->spec->has_midi) {
+ dice->tx_midi_ports[0] = 1;
+ dice->rx_midi_ports[0] = 1;
+ }
+
+ return 0;
+}
diff --git a/sound/firewire/dice/dice-proc.c b/sound/firewire/dice/dice-proc.c
index bb870fc..db0a031 100644
--- a/sound/firewire/dice/dice-proc.c
+++ b/sound/firewire/dice/dice-proc.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* dice_proc.c - a part of driver for Dice based devices
*
* Copyright (c) Clemens Ladisch
* Copyright (c) 2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "dice.h"
@@ -285,12 +284,8 @@
struct snd_info_entry *entry;
entry = snd_info_create_card_entry(dice->card, name, root);
- if (!entry)
- return;
-
- snd_info_set_text_ops(entry, dice, op);
- if (snd_info_register(entry) < 0)
- snd_info_free_entry(entry);
+ if (entry)
+ snd_info_set_text_ops(entry, dice, op);
}
void snd_dice_create_proc(struct snd_dice *dice)
@@ -306,10 +301,6 @@
if (!root)
return;
root->mode = S_IFDIR | 0555;
- if (snd_info_register(root) < 0) {
- snd_info_free_entry(root);
- return;
- }
add_node(dice, root, "dice", dice_proc_read);
add_node(dice, root, "formation", dice_proc_read_formation);
diff --git a/sound/firewire/dice/dice-stream.c b/sound/firewire/dice/dice-stream.c
index c3c892c..f6a8627 100644
--- a/sound/firewire/dice/dice-stream.c
+++ b/sound/firewire/dice/dice-stream.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* dice_stream.c - a part of driver for DICE based devices
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
* Copyright (c) 2014 Takashi Sakamoto <o-takashi@sakamocchi.jp>
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "dice.h"
@@ -138,18 +137,9 @@
static void release_resources(struct snd_dice *dice)
{
- unsigned int i;
+ int i;
- for (i = 0; i < MAX_STREAMS; i++) {
- if (amdtp_stream_running(&dice->tx_stream[i])) {
- amdtp_stream_pcm_abort(&dice->tx_stream[i]);
- amdtp_stream_stop(&dice->tx_stream[i]);
- }
- if (amdtp_stream_running(&dice->rx_stream[i])) {
- amdtp_stream_pcm_abort(&dice->rx_stream[i]);
- amdtp_stream_stop(&dice->rx_stream[i]);
- }
-
+ for (i = 0; i < MAX_STREAMS; ++i) {
fw_iso_resources_free(&dice->tx_resources[i]);
fw_iso_resources_free(&dice->rx_resources[i]);
}
@@ -175,35 +165,22 @@
}
}
-static int keep_resources(struct snd_dice *dice,
- enum amdtp_stream_direction dir, unsigned int index,
- unsigned int rate, unsigned int pcm_chs,
- unsigned int midi_ports)
+static int keep_resources(struct snd_dice *dice, struct amdtp_stream *stream,
+ struct fw_iso_resources *resources, unsigned int rate,
+ unsigned int pcm_chs, unsigned int midi_ports)
{
- struct amdtp_stream *stream;
- struct fw_iso_resources *resources;
bool double_pcm_frames;
unsigned int i;
int err;
- if (dir == AMDTP_IN_STREAM) {
- stream = &dice->tx_stream[index];
- resources = &dice->tx_resources[index];
- } else {
- stream = &dice->rx_stream[index];
- resources = &dice->rx_resources[index];
- }
-
- /*
- * At 176.4/192.0 kHz, Dice has a quirk to transfer two PCM frames in
- * one data block of AMDTP packet. Thus sampling transfer frequency is
- * a half of PCM sampling frequency, i.e. PCM frames at 192.0 kHz are
- * transferred on AMDTP packets at 96 kHz. Two successive samples of a
- * channel are stored consecutively in the packet. This quirk is called
- * as 'Dual Wire'.
- * For this quirk, blocking mode is required and PCM buffer size should
- * be aligned to SYT_INTERVAL.
- */
+ // At 176.4/192.0 kHz, Dice has a quirk to transfer two PCM frames in
+ // one data block of AMDTP packet. Thus sampling transfer frequency is
+ // a half of PCM sampling frequency, i.e. PCM frames at 192.0 kHz are
+ // transferred on AMDTP packets at 96 kHz. Two successive samples of a
+ // channel are stored consecutively in the packet. This quirk is called
+ // as 'Dual Wire'.
+ // For this quirk, blocking mode is required and PCM buffer size should
+ // be aligned to SYT_INTERVAL.
double_pcm_frames = rate > 96000;
if (double_pcm_frames) {
rate /= 2;
@@ -230,40 +207,40 @@
fw_parent_device(dice->unit)->max_speed);
}
-static int start_streams(struct snd_dice *dice, enum amdtp_stream_direction dir,
- unsigned int rate, struct reg_params *params)
+static int keep_dual_resources(struct snd_dice *dice, unsigned int rate,
+ enum amdtp_stream_direction dir,
+ struct reg_params *params)
{
- __be32 reg[2];
enum snd_dice_rate_mode mode;
- unsigned int i, pcm_chs, midi_ports;
- struct amdtp_stream *streams;
- struct fw_iso_resources *resources;
- struct fw_device *fw_dev = fw_parent_device(dice->unit);
- int err = 0;
-
- if (dir == AMDTP_IN_STREAM) {
- streams = dice->tx_stream;
- resources = dice->tx_resources;
- } else {
- streams = dice->rx_stream;
- resources = dice->rx_resources;
- }
+ int i;
+ int err;
err = snd_dice_stream_get_rate_mode(dice, rate, &mode);
if (err < 0)
return err;
- for (i = 0; i < params->count; i++) {
+ for (i = 0; i < params->count; ++i) {
+ __be32 reg[2];
+ struct amdtp_stream *stream;
+ struct fw_iso_resources *resources;
unsigned int pcm_cache;
unsigned int midi_cache;
+ unsigned int pcm_chs;
+ unsigned int midi_ports;
if (dir == AMDTP_IN_STREAM) {
+ stream = &dice->tx_stream[i];
+ resources = &dice->tx_resources[i];
+
pcm_cache = dice->tx_pcm_chs[i][mode];
midi_cache = dice->tx_midi_ports[i];
err = snd_dice_transaction_read_tx(dice,
params->size * i + TX_NUMBER_AUDIO,
reg, sizeof(reg));
} else {
+ stream = &dice->rx_stream[i];
+ resources = &dice->rx_resources[i];
+
pcm_cache = dice->rx_pcm_chs[i][mode];
midi_cache = dice->rx_midi_ports[i];
err = snd_dice_transaction_read_rx(dice,
@@ -275,7 +252,7 @@
pcm_chs = be32_to_cpu(reg[0]);
midi_ports = be32_to_cpu(reg[1]);
- /* These are important for developer of this driver. */
+ // These are important for developer of this driver.
if (pcm_chs != pcm_cache || midi_ports != midi_cache) {
dev_info(&dice->unit->device,
"cache mismatch: pcm: %u:%u, midi: %u:%u\n",
@@ -283,141 +260,173 @@
return -EPROTO;
}
- err = keep_resources(dice, dir, i, rate, pcm_chs, midi_ports);
- if (err < 0)
- return err;
-
- reg[0] = cpu_to_be32(resources[i].channel);
- if (dir == AMDTP_IN_STREAM) {
- err = snd_dice_transaction_write_tx(dice,
- params->size * i + TX_ISOCHRONOUS,
- reg, sizeof(reg[0]));
- } else {
- err = snd_dice_transaction_write_rx(dice,
- params->size * i + RX_ISOCHRONOUS,
- reg, sizeof(reg[0]));
- }
- if (err < 0)
- return err;
-
- if (dir == AMDTP_IN_STREAM) {
- reg[0] = cpu_to_be32(fw_dev->max_speed);
- err = snd_dice_transaction_write_tx(dice,
- params->size * i + TX_SPEED,
- reg, sizeof(reg[0]));
- if (err < 0)
- return err;
- }
-
- err = amdtp_stream_start(&streams[i], resources[i].channel,
- fw_dev->max_speed);
+ err = keep_resources(dice, stream, resources, rate, pcm_chs,
+ midi_ports);
if (err < 0)
return err;
}
- return err;
+ return 0;
}
-static int start_duplex_streams(struct snd_dice *dice, unsigned int rate)
+static void finish_session(struct snd_dice *dice, struct reg_params *tx_params,
+ struct reg_params *rx_params)
{
- struct reg_params tx_params, rx_params;
- int i;
+ stop_streams(dice, AMDTP_IN_STREAM, tx_params);
+ stop_streams(dice, AMDTP_OUT_STREAM, rx_params);
+
+ snd_dice_transaction_clear_enable(dice);
+}
+
+int snd_dice_stream_reserve_duplex(struct snd_dice *dice, unsigned int rate)
+{
+ unsigned int curr_rate;
int err;
- err = get_register_params(dice, &tx_params, &rx_params);
+ // Check sampling transmission frequency.
+ err = snd_dice_transaction_get_rate(dice, &curr_rate);
if (err < 0)
return err;
+ if (rate == 0)
+ rate = curr_rate;
- /* Stop transmission. */
- stop_streams(dice, AMDTP_IN_STREAM, &tx_params);
- stop_streams(dice, AMDTP_OUT_STREAM, &rx_params);
- snd_dice_transaction_clear_enable(dice);
- release_resources(dice);
+ if (dice->substreams_counter == 0 || curr_rate != rate) {
+ struct reg_params tx_params, rx_params;
- err = ensure_phase_lock(dice, rate);
- if (err < 0) {
- dev_err(&dice->unit->device, "fail to ensure phase lock\n");
- return err;
- }
+ amdtp_domain_stop(&dice->domain);
- /* Likely to have changed stream formats. */
- err = get_register_params(dice, &tx_params, &rx_params);
- if (err < 0)
- return err;
+ err = get_register_params(dice, &tx_params, &rx_params);
+ if (err < 0)
+ return err;
+ finish_session(dice, &tx_params, &rx_params);
- /* Start both streams. */
- err = start_streams(dice, AMDTP_IN_STREAM, rate, &tx_params);
- if (err < 0)
- goto error;
- err = start_streams(dice, AMDTP_OUT_STREAM, rate, &rx_params);
- if (err < 0)
- goto error;
+ release_resources(dice);
- err = snd_dice_transaction_set_enable(dice);
- if (err < 0) {
- dev_err(&dice->unit->device, "fail to enable interface\n");
- goto error;
- }
+ // Just after owning the unit (GLOBAL_OWNER), the unit can
+ // return invalid stream formats. Selecting clock parameters
+ // have an effect for the unit to refine it.
+ err = ensure_phase_lock(dice, rate);
+ if (err < 0)
+ return err;
- for (i = 0; i < MAX_STREAMS; i++) {
- if ((i < tx_params.count &&
- !amdtp_stream_wait_callback(&dice->tx_stream[i],
- CALLBACK_TIMEOUT)) ||
- (i < rx_params.count &&
- !amdtp_stream_wait_callback(&dice->rx_stream[i],
- CALLBACK_TIMEOUT))) {
- err = -ETIMEDOUT;
+ // After changing sampling transfer frequency, the value of
+ // register can be changed.
+ err = get_register_params(dice, &tx_params, &rx_params);
+ if (err < 0)
+ return err;
+
+ err = keep_dual_resources(dice, rate, AMDTP_IN_STREAM,
+ &tx_params);
+ if (err < 0)
goto error;
- }
+
+ err = keep_dual_resources(dice, rate, AMDTP_OUT_STREAM,
+ &rx_params);
+ if (err < 0)
+ goto error;
}
return 0;
error:
- stop_streams(dice, AMDTP_IN_STREAM, &tx_params);
- stop_streams(dice, AMDTP_OUT_STREAM, &rx_params);
- snd_dice_transaction_clear_enable(dice);
release_resources(dice);
return err;
}
+static int start_streams(struct snd_dice *dice, enum amdtp_stream_direction dir,
+ unsigned int rate, struct reg_params *params)
+{
+ unsigned int max_speed = fw_parent_device(dice->unit)->max_speed;
+ int i;
+ int err;
+
+ for (i = 0; i < params->count; i++) {
+ struct amdtp_stream *stream;
+ struct fw_iso_resources *resources;
+ __be32 reg;
+
+ if (dir == AMDTP_IN_STREAM) {
+ stream = dice->tx_stream + i;
+ resources = dice->tx_resources + i;
+ } else {
+ stream = dice->rx_stream + i;
+ resources = dice->rx_resources + i;
+ }
+
+ reg = cpu_to_be32(resources->channel);
+ if (dir == AMDTP_IN_STREAM) {
+ err = snd_dice_transaction_write_tx(dice,
+ params->size * i + TX_ISOCHRONOUS,
+ ®, sizeof(reg));
+ } else {
+ err = snd_dice_transaction_write_rx(dice,
+ params->size * i + RX_ISOCHRONOUS,
+ ®, sizeof(reg));
+ }
+ if (err < 0)
+ return err;
+
+ if (dir == AMDTP_IN_STREAM) {
+ reg = cpu_to_be32(max_speed);
+ err = snd_dice_transaction_write_tx(dice,
+ params->size * i + TX_SPEED,
+ ®, sizeof(reg));
+ if (err < 0)
+ return err;
+ }
+
+ err = amdtp_domain_add_stream(&dice->domain, stream,
+ resources->channel, max_speed);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
/*
* MEMO: After this function, there're two states of streams:
* - None streams are running.
* - All streams are running.
*/
-int snd_dice_stream_start_duplex(struct snd_dice *dice, unsigned int rate)
+int snd_dice_stream_start_duplex(struct snd_dice *dice)
{
- unsigned int curr_rate;
+ unsigned int generation = dice->rx_resources[0].generation;
+ struct reg_params tx_params, rx_params;
unsigned int i;
+ unsigned int rate;
enum snd_dice_rate_mode mode;
int err;
if (dice->substreams_counter == 0)
return -EIO;
- /* Check sampling transmission frequency. */
- err = snd_dice_transaction_get_rate(dice, &curr_rate);
- if (err < 0) {
- dev_err(&dice->unit->device,
- "fail to get sampling rate\n");
+ err = get_register_params(dice, &tx_params, &rx_params);
+ if (err < 0)
return err;
- }
- if (rate == 0)
- rate = curr_rate;
- if (rate != curr_rate)
- goto restart;
- /* Check error of packet streaming. */
+ // Check error of packet streaming.
for (i = 0; i < MAX_STREAMS; ++i) {
- if (amdtp_streaming_error(&dice->tx_stream[i]))
+ if (amdtp_streaming_error(&dice->tx_stream[i]) ||
+ amdtp_streaming_error(&dice->rx_stream[i])) {
+ amdtp_domain_stop(&dice->domain);
+ finish_session(dice, &tx_params, &rx_params);
break;
- if (amdtp_streaming_error(&dice->rx_stream[i]))
- break;
+ }
}
- if (i < MAX_STREAMS)
- goto restart;
- /* Check required streams are running or not. */
+ if (generation != fw_parent_device(dice->unit)->card->generation) {
+ for (i = 0; i < MAX_STREAMS; ++i) {
+ if (i < tx_params.count)
+ fw_iso_resources_update(dice->tx_resources + i);
+ if (i < rx_params.count)
+ fw_iso_resources_update(dice->rx_resources + i);
+ }
+ }
+
+ // Check required streams are running or not.
+ err = snd_dice_transaction_get_rate(dice, &rate);
+ if (err < 0)
+ return err;
err = snd_dice_stream_get_rate_mode(dice, rate, &mode);
if (err < 0)
return err;
@@ -429,12 +438,45 @@
!amdtp_stream_running(&dice->rx_stream[i]))
break;
}
- if (i < MAX_STREAMS)
- goto restart;
+ if (i < MAX_STREAMS) {
+ // Start both streams.
+ err = start_streams(dice, AMDTP_IN_STREAM, rate, &tx_params);
+ if (err < 0)
+ goto error;
+
+ err = start_streams(dice, AMDTP_OUT_STREAM, rate, &rx_params);
+ if (err < 0)
+ goto error;
+
+ err = snd_dice_transaction_set_enable(dice);
+ if (err < 0) {
+ dev_err(&dice->unit->device,
+ "fail to enable interface\n");
+ goto error;
+ }
+
+ err = amdtp_domain_start(&dice->domain);
+ if (err < 0)
+ goto error;
+
+ for (i = 0; i < MAX_STREAMS; i++) {
+ if ((i < tx_params.count &&
+ !amdtp_stream_wait_callback(&dice->tx_stream[i],
+ CALLBACK_TIMEOUT)) ||
+ (i < rx_params.count &&
+ !amdtp_stream_wait_callback(&dice->rx_stream[i],
+ CALLBACK_TIMEOUT))) {
+ err = -ETIMEDOUT;
+ goto error;
+ }
+ }
+ }
return 0;
-restart:
- return start_duplex_streams(dice, rate);
+error:
+ amdtp_domain_stop(&dice->domain);
+ finish_session(dice, &tx_params, &rx_params);
+ return err;
}
/*
@@ -446,17 +488,14 @@
{
struct reg_params tx_params, rx_params;
- if (dice->substreams_counter > 0)
- return;
+ if (dice->substreams_counter == 0) {
+ if (get_register_params(dice, &tx_params, &rx_params) >= 0) {
+ amdtp_domain_stop(&dice->domain);
+ finish_session(dice, &tx_params, &rx_params);
+ }
- snd_dice_transaction_clear_enable(dice);
-
- if (get_register_params(dice, &tx_params, &rx_params) == 0) {
- stop_streams(dice, AMDTP_IN_STREAM, &tx_params);
- stop_streams(dice, AMDTP_OUT_STREAM, &rx_params);
+ release_resources(dice);
}
-
- release_resources(dice);
}
static int init_stream(struct snd_dice *dice, enum amdtp_stream_direction dir,
@@ -531,7 +570,15 @@
destroy_stream(dice, AMDTP_OUT_STREAM, i);
for (i = 0; i < MAX_STREAMS; i++)
destroy_stream(dice, AMDTP_IN_STREAM, i);
- break;
+ goto end;
+ }
+ }
+
+ err = amdtp_domain_init(&dice->domain);
+ if (err < 0) {
+ for (i = 0; i < MAX_STREAMS; ++i) {
+ destroy_stream(dice, AMDTP_OUT_STREAM, i);
+ destroy_stream(dice, AMDTP_IN_STREAM, i);
}
}
end:
@@ -546,6 +593,8 @@
destroy_stream(dice, AMDTP_IN_STREAM, i);
destroy_stream(dice, AMDTP_OUT_STREAM, i);
}
+
+ amdtp_domain_destroy(&dice->domain);
}
void snd_dice_stream_update_duplex(struct snd_dice *dice)
@@ -563,6 +612,8 @@
dice->global_enabled = false;
if (get_register_params(dice, &tx_params, &rx_params) == 0) {
+ amdtp_domain_stop(&dice->domain);
+
stop_streams(dice, AMDTP_IN_STREAM, &tx_params);
stop_streams(dice, AMDTP_OUT_STREAM, &rx_params);
}
diff --git a/sound/firewire/dice/dice-transaction.c b/sound/firewire/dice/dice-transaction.c
index b7e138b..2c0dde2 100644
--- a/sound/firewire/dice/dice-transaction.c
+++ b/sound/firewire/dice/dice-transaction.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* dice_transaction.c - a part of driver for Dice based devices
*
* Copyright (c) Clemens Ladisch
* Copyright (c) 2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "dice.h"
diff --git a/sound/firewire/dice/dice.c b/sound/firewire/dice/dice.c
index 774eb22..13eeb3f 100644
--- a/sound/firewire/dice/dice.c
+++ b/sound/firewire/dice/dice.c
@@ -1,8 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* TC Applied Technologies Digital Interface Communications Engine driver
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "dice.h"
@@ -18,6 +18,8 @@
#define OUI_ALESIS 0x000595
#define OUI_MAUDIO 0x000d6c
#define OUI_MYTEK 0x001ee8
+#define OUI_SSL 0x0050c2 // Actually ID reserved by IEEE.
+#define OUI_PRESONUS 0x000a92
#define DICE_CATEGORY_ID 0x04
#define WEISS_CATEGORY_ID 0x00
@@ -122,25 +124,12 @@
strcpy(card->mixername, "DICE");
}
-static void dice_free(struct snd_dice *dice)
-{
- snd_dice_stream_destroy_duplex(dice);
- snd_dice_transaction_destroy(dice);
- fw_unit_put(dice->unit);
-
- mutex_destroy(&dice->mutex);
- kfree(dice);
-}
-
-/*
- * This module releases the FireWire unit data after all ALSA character devices
- * are released by applications. This is for releasing stream data or finishing
- * transactions safely. Thus at returning from .remove(), this module still keep
- * references for the unit.
- */
static void dice_card_free(struct snd_card *card)
{
- dice_free(card->private_data);
+ struct snd_dice *dice = card->private_data;
+
+ snd_dice_stream_destroy_duplex(dice);
+ snd_dice_transaction_destroy(dice);
}
static void do_registration(struct work_struct *work)
@@ -155,6 +144,8 @@
&dice->card);
if (err < 0)
return;
+ dice->card->private_free = dice_card_free;
+ dice->card->private_data = dice;
err = snd_dice_transaction_init(dice);
if (err < 0)
@@ -192,19 +183,10 @@
if (err < 0)
goto error;
- /*
- * After registered, dice instance can be released corresponding to
- * releasing the sound card instance.
- */
- dice->card->private_free = dice_card_free;
- dice->card->private_data = dice;
dice->registered = true;
return;
error:
- snd_dice_stream_destroy_duplex(dice);
- snd_dice_transaction_destroy(dice);
- snd_dice_stream_destroy_duplex(dice);
snd_card_free(dice->card);
dev_info(&dice->unit->device,
"Sound card registration failed: %d\n", err);
@@ -216,17 +198,16 @@
struct snd_dice *dice;
int err;
- if (!entry->driver_data) {
+ if (!entry->driver_data && entry->vendor_id != OUI_SSL) {
err = check_dice_category(unit);
if (err < 0)
return -ENODEV;
}
/* Allocate this independent of sound card instance. */
- dice = kzalloc(sizeof(struct snd_dice), GFP_KERNEL);
- if (dice == NULL)
+ dice = devm_kzalloc(&unit->device, sizeof(struct snd_dice), GFP_KERNEL);
+ if (!dice)
return -ENOMEM;
-
dice->unit = fw_unit_get(unit);
dev_set_drvdata(&unit->device, dice);
@@ -261,12 +242,12 @@
cancel_delayed_work_sync(&dice->dwork);
if (dice->registered) {
- /* No need to wait for releasing card object in this context. */
- snd_card_free_when_closed(dice->card);
- } else {
- /* Don't forget this case. */
- dice_free(dice);
+ // Block till all of ALSA character devices are released.
+ snd_card_free(dice->card);
}
+
+ mutex_destroy(&dice->mutex);
+ fw_unit_put(dice->unit);
}
static void dice_bus_reset(struct fw_unit *unit)
@@ -382,6 +363,23 @@
.model_id = 0x000002,
.driver_data = (kernel_ulong_t)snd_dice_detect_mytek_formats,
},
+ // Solid State Logic, Duende Classic and Mini.
+ // NOTE: each field of GUID in config ROM is not compliant to standard
+ // DICE scheme.
+ {
+ .match_flags = IEEE1394_MATCH_VENDOR_ID |
+ IEEE1394_MATCH_MODEL_ID,
+ .vendor_id = OUI_SSL,
+ .model_id = 0x000070,
+ },
+ // Presonus FireStudio.
+ {
+ .match_flags = IEEE1394_MATCH_VENDOR_ID |
+ IEEE1394_MATCH_MODEL_ID,
+ .vendor_id = OUI_PRESONUS,
+ .model_id = 0x000008,
+ .driver_data = (kernel_ulong_t)snd_dice_detect_presonus_formats,
+ },
{
.match_flags = IEEE1394_MATCH_VERSION,
.version = DICE_INTERFACE,
diff --git a/sound/firewire/dice/dice.h b/sound/firewire/dice/dice.h
index 83353a3..fa6d743 100644
--- a/sound/firewire/dice/dice.h
+++ b/sound/firewire/dice/dice.h
@@ -1,10 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* dice.h - a part of driver for Dice based devices
*
* Copyright (c) Clemens Ladisch
* Copyright (c) 2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#ifndef SOUND_DICE_H_INCLUDED
@@ -113,6 +112,8 @@
bool global_enabled;
struct completion clock_accepted;
unsigned int substreams_counter;
+
+ struct amdtp_domain domain;
};
enum snd_dice_addr_type {
@@ -205,10 +206,11 @@
int snd_dice_stream_get_rate_mode(struct snd_dice *dice, unsigned int rate,
enum snd_dice_rate_mode *mode);
-int snd_dice_stream_start_duplex(struct snd_dice *dice, unsigned int rate);
+int snd_dice_stream_start_duplex(struct snd_dice *dice);
void snd_dice_stream_stop_duplex(struct snd_dice *dice);
int snd_dice_stream_init_duplex(struct snd_dice *dice);
void snd_dice_stream_destroy_duplex(struct snd_dice *dice);
+int snd_dice_stream_reserve_duplex(struct snd_dice *dice, unsigned int rate);
void snd_dice_stream_update_duplex(struct snd_dice *dice);
int snd_dice_stream_detect_current_formats(struct snd_dice *dice);
@@ -227,5 +229,6 @@
int snd_dice_detect_alesis_formats(struct snd_dice *dice);
int snd_dice_detect_extension_formats(struct snd_dice *dice);
int snd_dice_detect_mytek_formats(struct snd_dice *dice);
+int snd_dice_detect_presonus_formats(struct snd_dice *dice);
#endif
diff --git a/sound/firewire/digi00x/Makefile b/sound/firewire/digi00x/Makefile
index 1123e68..8add0cd 100644
--- a/sound/firewire/digi00x/Makefile
+++ b/sound/firewire/digi00x/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
snd-firewire-digi00x-objs := amdtp-dot.o digi00x-stream.o digi00x-proc.o \
digi00x-pcm.o digi00x-hwdep.o \
digi00x-transaction.o digi00x-midi.o digi00x.o
diff --git a/sound/firewire/digi00x/amdtp-dot.c b/sound/firewire/digi00x/amdtp-dot.c
index 4a884a3..d613642 100644
--- a/sound/firewire/digi00x/amdtp-dot.c
+++ b/sound/firewire/digi00x/amdtp-dot.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* amdtp-dot.c - a part of driver for Digidesign Digi 002/003 family
*
* Copyright (c) 2014-2015 Takashi Sakamoto
* Copyright (C) 2012 Robin Gareus <robin@gareus.org>
* Copyright (C) 2012 Damien Zammit <damien@zamaudio.com>
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include <sound/pcm.h>
@@ -128,7 +127,7 @@
if (err < 0)
return err;
- s->fdf = AMDTP_FDF_AM824 | s->sfc;
+ s->ctx_data.rx.fdf = AMDTP_FDF_AM824 | s->sfc;
p->pcm_channels = pcm_channels;
@@ -144,17 +143,23 @@
}
static void write_pcm_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm,
- __be32 *buffer, unsigned int frames)
+ __be32 *buffer, unsigned int frames,
+ unsigned int pcm_frames)
{
struct amdtp_dot *p = s->protocol;
+ unsigned int channels = p->pcm_channels;
struct snd_pcm_runtime *runtime = pcm->runtime;
- unsigned int channels, remaining_frames, i, c;
+ unsigned int pcm_buffer_pointer;
+ int remaining_frames;
const u32 *src;
+ int i, c;
- channels = p->pcm_channels;
+ pcm_buffer_pointer = s->pcm_buffer_pointer + pcm_frames;
+ pcm_buffer_pointer %= runtime->buffer_size;
+
src = (void *)runtime->dma_area +
- frames_to_bytes(runtime, s->pcm_buffer_pointer);
- remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
+ frames_to_bytes(runtime, pcm_buffer_pointer);
+ remaining_frames = runtime->buffer_size - pcm_buffer_pointer;
buffer++;
for (i = 0; i < frames; ++i) {
@@ -170,17 +175,23 @@
}
static void read_pcm_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm,
- __be32 *buffer, unsigned int frames)
+ __be32 *buffer, unsigned int frames,
+ unsigned int pcm_frames)
{
struct amdtp_dot *p = s->protocol;
+ unsigned int channels = p->pcm_channels;
struct snd_pcm_runtime *runtime = pcm->runtime;
- unsigned int channels, remaining_frames, i, c;
+ unsigned int pcm_buffer_pointer;
+ int remaining_frames;
u32 *dst;
+ int i, c;
- channels = p->pcm_channels;
+ pcm_buffer_pointer = s->pcm_buffer_pointer + pcm_frames;
+ pcm_buffer_pointer %= runtime->buffer_size;
+
dst = (void *)runtime->dma_area +
- frames_to_bytes(runtime, s->pcm_buffer_pointer);
- remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
+ frames_to_bytes(runtime, pcm_buffer_pointer);
+ remaining_frames = runtime->buffer_size - pcm_buffer_pointer;
buffer++;
for (i = 0; i < frames; ++i) {
@@ -235,7 +246,7 @@
}
static void write_midi_messages(struct amdtp_stream *s, __be32 *buffer,
- unsigned int data_blocks)
+ unsigned int data_blocks, unsigned int data_block_counter)
{
struct amdtp_dot *p = s->protocol;
unsigned int f, port;
@@ -243,7 +254,7 @@
u8 *b;
for (f = 0; f < data_blocks; f++) {
- port = (s->data_block_counter + f) % 8;
+ port = (data_block_counter + f) % 8;
b = (u8 *)&buffer[0];
len = 0;
@@ -330,66 +341,74 @@
WRITE_ONCE(p->midi[port], midi);
}
-static unsigned int process_tx_data_blocks(struct amdtp_stream *s,
- __be32 *buffer,
- unsigned int data_blocks,
- unsigned int *syt)
+static unsigned int process_ir_ctx_payloads(struct amdtp_stream *s,
+ const struct pkt_desc *descs,
+ unsigned int packets,
+ struct snd_pcm_substream *pcm)
{
- struct snd_pcm_substream *pcm;
- unsigned int pcm_frames;
+ unsigned int pcm_frames = 0;
+ int i;
- pcm = READ_ONCE(s->pcm);
- if (pcm) {
- read_pcm_s32(s, pcm, buffer, data_blocks);
- pcm_frames = data_blocks;
- } else {
- pcm_frames = 0;
+ for (i = 0; i < packets; ++i) {
+ const struct pkt_desc *desc = descs + i;
+ __be32 *buf = desc->ctx_payload;
+ unsigned int data_blocks = desc->data_blocks;
+
+ if (pcm) {
+ read_pcm_s32(s, pcm, buf, data_blocks, pcm_frames);
+ pcm_frames += data_blocks;
+ }
+
+ read_midi_messages(s, buf, data_blocks);
}
- read_midi_messages(s, buffer, data_blocks);
-
return pcm_frames;
}
-static unsigned int process_rx_data_blocks(struct amdtp_stream *s,
- __be32 *buffer,
- unsigned int data_blocks,
- unsigned int *syt)
+static unsigned int process_it_ctx_payloads(struct amdtp_stream *s,
+ const struct pkt_desc *descs,
+ unsigned int packets,
+ struct snd_pcm_substream *pcm)
{
- struct snd_pcm_substream *pcm;
- unsigned int pcm_frames;
+ unsigned int pcm_frames = 0;
+ int i;
- pcm = READ_ONCE(s->pcm);
- if (pcm) {
- write_pcm_s32(s, pcm, buffer, data_blocks);
- pcm_frames = data_blocks;
- } else {
- write_pcm_silence(s, buffer, data_blocks);
- pcm_frames = 0;
+ for (i = 0; i < packets; ++i) {
+ const struct pkt_desc *desc = descs + i;
+ __be32 *buf = desc->ctx_payload;
+ unsigned int data_blocks = desc->data_blocks;
+
+ if (pcm) {
+ write_pcm_s32(s, pcm, buf, data_blocks, pcm_frames);
+ pcm_frames += data_blocks;
+ } else {
+ write_pcm_silence(s, buf, data_blocks);
+ }
+
+ write_midi_messages(s, buf, data_blocks,
+ desc->data_block_counter);
}
- write_midi_messages(s, buffer, data_blocks);
-
return pcm_frames;
}
int amdtp_dot_init(struct amdtp_stream *s, struct fw_unit *unit,
enum amdtp_stream_direction dir)
{
- amdtp_stream_process_data_blocks_t process_data_blocks;
+ amdtp_stream_process_ctx_payloads_t process_ctx_payloads;
enum cip_flags flags;
- /* Use different mode between incoming/outgoing. */
+ // Use different mode between incoming/outgoing.
if (dir == AMDTP_IN_STREAM) {
flags = CIP_NONBLOCKING;
- process_data_blocks = process_tx_data_blocks;
+ process_ctx_payloads = process_ir_ctx_payloads;
} else {
flags = CIP_BLOCKING;
- process_data_blocks = process_rx_data_blocks;
+ process_ctx_payloads = process_it_ctx_payloads;
}
return amdtp_stream_init(s, unit, dir, flags, CIP_FMT_AM,
- process_data_blocks, sizeof(struct amdtp_dot));
+ process_ctx_payloads, sizeof(struct amdtp_dot));
}
void amdtp_dot_reset(struct amdtp_stream *s)
diff --git a/sound/firewire/digi00x/digi00x-hwdep.c b/sound/firewire/digi00x/digi00x-hwdep.c
index 426cd39..41c5857 100644
--- a/sound/firewire/digi00x/digi00x-hwdep.c
+++ b/sound/firewire/digi00x/digi00x-hwdep.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* digi00x-hwdep.c - a part of driver for Digidesign Digi 002/003 family
*
* Copyright (c) 2014-2015 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
/*
diff --git a/sound/firewire/digi00x/digi00x-midi.c b/sound/firewire/digi00x/digi00x-midi.c
index 7ab3d08..2b57ece 100644
--- a/sound/firewire/digi00x/digi00x-midi.c
+++ b/sound/firewire/digi00x/digi00x-midi.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* digi00x-midi.h - a part of driver for Digidesign Digi 002/003 family
*
* Copyright (c) 2014-2015 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "digi00x.h"
@@ -18,8 +17,13 @@
return err;
mutex_lock(&dg00x->mutex);
- dg00x->substreams_counter++;
- err = snd_dg00x_stream_start_duplex(dg00x, 0);
+ err = snd_dg00x_stream_reserve_duplex(dg00x, 0);
+ if (err >= 0) {
+ ++dg00x->substreams_counter;
+ err = snd_dg00x_stream_start_duplex(dg00x);
+ if (err < 0)
+ --dg00x->substreams_counter;
+ }
mutex_unlock(&dg00x->mutex);
if (err < 0)
snd_dg00x_stream_lock_release(dg00x);
@@ -32,7 +36,7 @@
struct snd_dg00x *dg00x = substream->rmidi->private_data;
mutex_lock(&dg00x->mutex);
- dg00x->substreams_counter--;
+ --dg00x->substreams_counter;
snd_dg00x_stream_stop_duplex(dg00x);
mutex_unlock(&dg00x->mutex);
diff --git a/sound/firewire/digi00x/digi00x-pcm.c b/sound/firewire/digi00x/digi00x-pcm.c
index fdcff04..18e561b 100644
--- a/sound/firewire/digi00x/digi00x-pcm.c
+++ b/sound/firewire/digi00x/digi00x-pcm.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* digi00x-pcm.c - a part of driver for Digidesign Digi 002/003 family
*
* Copyright (c) 2014-2015 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "digi00x.h"
@@ -155,8 +154,8 @@
return 0;
}
-static int pcm_capture_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
+static int pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
{
struct snd_dg00x *dg00x = substream->private_data;
int err;
@@ -167,58 +166,26 @@
return err;
if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
+ unsigned int rate = params_rate(hw_params);
+
mutex_lock(&dg00x->mutex);
- dg00x->substreams_counter++;
+ err = snd_dg00x_stream_reserve_duplex(dg00x, rate);
+ if (err >= 0)
+ ++dg00x->substreams_counter;
mutex_unlock(&dg00x->mutex);
}
- return 0;
+ return err;
}
-static int pcm_playback_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
-{
- struct snd_dg00x *dg00x = substream->private_data;
- int err;
-
- err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
- params_buffer_bytes(hw_params));
- if (err < 0)
- return err;
-
- if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
- mutex_lock(&dg00x->mutex);
- dg00x->substreams_counter++;
- mutex_unlock(&dg00x->mutex);
- }
-
- return 0;
-}
-
-static int pcm_capture_hw_free(struct snd_pcm_substream *substream)
+static int pcm_hw_free(struct snd_pcm_substream *substream)
{
struct snd_dg00x *dg00x = substream->private_data;
mutex_lock(&dg00x->mutex);
if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN)
- dg00x->substreams_counter--;
-
- snd_dg00x_stream_stop_duplex(dg00x);
-
- mutex_unlock(&dg00x->mutex);
-
- return snd_pcm_lib_free_vmalloc_buffer(substream);
-}
-
-static int pcm_playback_hw_free(struct snd_pcm_substream *substream)
-{
- struct snd_dg00x *dg00x = substream->private_data;
-
- mutex_lock(&dg00x->mutex);
-
- if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN)
- dg00x->substreams_counter--;
+ --dg00x->substreams_counter;
snd_dg00x_stream_stop_duplex(dg00x);
@@ -230,12 +197,11 @@
static int pcm_capture_prepare(struct snd_pcm_substream *substream)
{
struct snd_dg00x *dg00x = substream->private_data;
- struct snd_pcm_runtime *runtime = substream->runtime;
int err;
mutex_lock(&dg00x->mutex);
- err = snd_dg00x_stream_start_duplex(dg00x, runtime->rate);
+ err = snd_dg00x_stream_start_duplex(dg00x);
if (err >= 0)
amdtp_stream_pcm_prepare(&dg00x->tx_stream);
@@ -247,12 +213,11 @@
static int pcm_playback_prepare(struct snd_pcm_substream *substream)
{
struct snd_dg00x *dg00x = substream->private_data;
- struct snd_pcm_runtime *runtime = substream->runtime;
int err;
mutex_lock(&dg00x->mutex);
- err = snd_dg00x_stream_start_duplex(dg00x, runtime->rate);
+ err = snd_dg00x_stream_start_duplex(dg00x);
if (err >= 0) {
amdtp_stream_pcm_prepare(&dg00x->rx_stream);
amdtp_dot_reset(&dg00x->rx_stream);
@@ -333,8 +298,8 @@
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,
- .hw_params = pcm_capture_hw_params,
- .hw_free = pcm_capture_hw_free,
+ .hw_params = pcm_hw_params,
+ .hw_free = pcm_hw_free,
.prepare = pcm_capture_prepare,
.trigger = pcm_capture_trigger,
.pointer = pcm_capture_pointer,
@@ -345,8 +310,8 @@
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,
- .hw_params = pcm_playback_hw_params,
- .hw_free = pcm_playback_hw_free,
+ .hw_params = pcm_hw_params,
+ .hw_free = pcm_hw_free,
.prepare = pcm_playback_prepare,
.trigger = pcm_playback_trigger,
.pointer = pcm_playback_pointer,
diff --git a/sound/firewire/digi00x/digi00x-proc.c b/sound/firewire/digi00x/digi00x-proc.c
index 6996d5a..00b047f 100644
--- a/sound/firewire/digi00x/digi00x-proc.c
+++ b/sound/firewire/digi00x/digi00x-proc.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* digi00x-proc.c - a part of driver for Digidesign Digi 002/003 family
*
* Copyright (c) 2014-2015 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "digi00x.h"
@@ -80,20 +79,8 @@
return;
root->mode = S_IFDIR | 0555;
- if (snd_info_register(root) < 0) {
- snd_info_free_entry(root);
- return;
- }
entry = snd_info_create_card_entry(dg00x->card, "clock", root);
- if (entry == NULL) {
- snd_info_free_entry(root);
- return;
- }
-
- snd_info_set_text_ops(entry, dg00x, proc_read_clock);
- if (snd_info_register(entry) < 0) {
- snd_info_free_entry(entry);
- snd_info_free_entry(root);
- }
+ if (entry)
+ snd_info_set_text_ops(entry, dg00x, proc_read_clock);
}
diff --git a/sound/firewire/digi00x/digi00x-stream.c b/sound/firewire/digi00x/digi00x-stream.c
index 4d3b4eb..d6a9246 100644
--- a/sound/firewire/digi00x/digi00x-stream.c
+++ b/sound/firewire/digi00x/digi00x-stream.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* digi00x-stream.c - a part of driver for Digidesign Digi 002/003 family
*
* Copyright (c) 2014-2015 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "digi00x.h"
@@ -125,11 +124,22 @@
static void finish_session(struct snd_dg00x *dg00x)
{
- __be32 data = cpu_to_be32(0x00000003);
+ __be32 data;
+ data = cpu_to_be32(0x00000003);
snd_fw_transaction(dg00x->unit, TCODE_WRITE_QUADLET_REQUEST,
DG00X_ADDR_BASE + DG00X_OFFSET_STREAMING_SET,
&data, sizeof(data), 0);
+
+ // Unregister isochronous channels for both direction.
+ data = 0;
+ snd_fw_transaction(dg00x->unit, TCODE_WRITE_QUADLET_REQUEST,
+ DG00X_ADDR_BASE + DG00X_OFFSET_ISOC_CHANNELS,
+ &data, sizeof(data), 0);
+
+ // Just after finishing the session, the device may lost transmitting
+ // functionality for a short time.
+ msleep(50);
}
static int begin_session(struct snd_dg00x *dg00x)
@@ -138,11 +148,20 @@
u32 curr;
int err;
+ // Register isochronous channels for both direction.
+ data = cpu_to_be32((dg00x->tx_resources.channel << 16) |
+ dg00x->rx_resources.channel);
+ err = snd_fw_transaction(dg00x->unit, TCODE_WRITE_QUADLET_REQUEST,
+ DG00X_ADDR_BASE + DG00X_OFFSET_ISOC_CHANNELS,
+ &data, sizeof(data), 0);
+ if (err < 0)
+ return err;
+
err = snd_fw_transaction(dg00x->unit, TCODE_READ_QUADLET_REQUEST,
DG00X_ADDR_BASE + DG00X_OFFSET_STREAMING_STATE,
&data, sizeof(data), 0);
if (err < 0)
- goto error;
+ return err;
curr = be32_to_cpu(data);
if (curr == 0)
@@ -157,39 +176,23 @@
DG00X_OFFSET_STREAMING_SET,
&data, sizeof(data), 0);
if (err < 0)
- goto error;
+ break;
msleep(20);
curr--;
}
- return 0;
-error:
- finish_session(dg00x);
return err;
}
-static void release_resources(struct snd_dg00x *dg00x)
+static int keep_resources(struct snd_dg00x *dg00x, struct amdtp_stream *stream,
+ unsigned int rate)
{
- __be32 data = 0;
-
- /* Unregister isochronous channels for both direction. */
- snd_fw_transaction(dg00x->unit, TCODE_WRITE_QUADLET_REQUEST,
- DG00X_ADDR_BASE + DG00X_OFFSET_ISOC_CHANNELS,
- &data, sizeof(data), 0);
-
- /* Release isochronous resources. */
- fw_iso_resources_free(&dg00x->tx_resources);
- fw_iso_resources_free(&dg00x->rx_resources);
-}
-
-static int keep_resources(struct snd_dg00x *dg00x, unsigned int rate)
-{
- unsigned int i;
- __be32 data;
+ struct fw_iso_resources *resources;
+ int i;
int err;
- /* Check sampling rate. */
+ // Check sampling rate.
for (i = 0; i < SND_DG00X_RATE_COUNT; i++) {
if (snd_dg00x_stream_rates[i] == rate)
break;
@@ -197,66 +200,74 @@
if (i == SND_DG00X_RATE_COUNT)
return -EINVAL;
- /* Keep resources for out-stream. */
- err = amdtp_dot_set_parameters(&dg00x->rx_stream, rate,
+ if (stream == &dg00x->tx_stream)
+ resources = &dg00x->tx_resources;
+ else
+ resources = &dg00x->rx_resources;
+
+ err = amdtp_dot_set_parameters(stream, rate,
snd_dg00x_stream_pcm_channels[i]);
if (err < 0)
return err;
- err = fw_iso_resources_allocate(&dg00x->rx_resources,
- amdtp_stream_get_max_payload(&dg00x->rx_stream),
+
+ return fw_iso_resources_allocate(resources,
+ amdtp_stream_get_max_payload(stream),
fw_parent_device(dg00x->unit)->max_speed);
+}
+
+static int init_stream(struct snd_dg00x *dg00x, struct amdtp_stream *s)
+{
+ struct fw_iso_resources *resources;
+ enum amdtp_stream_direction dir;
+ int err;
+
+ if (s == &dg00x->tx_stream) {
+ resources = &dg00x->tx_resources;
+ dir = AMDTP_IN_STREAM;
+ } else {
+ resources = &dg00x->rx_resources;
+ dir = AMDTP_OUT_STREAM;
+ }
+
+ err = fw_iso_resources_init(resources, dg00x->unit);
if (err < 0)
return err;
- /* Keep resources for in-stream. */
- err = amdtp_dot_set_parameters(&dg00x->tx_stream, rate,
- snd_dg00x_stream_pcm_channels[i]);
+ err = amdtp_dot_init(s, dg00x->unit, dir);
if (err < 0)
- return err;
- err = fw_iso_resources_allocate(&dg00x->tx_resources,
- amdtp_stream_get_max_payload(&dg00x->tx_stream),
- fw_parent_device(dg00x->unit)->max_speed);
- if (err < 0)
- goto error;
+ fw_iso_resources_destroy(resources);
- /* Register isochronous channels for both direction. */
- data = cpu_to_be32((dg00x->tx_resources.channel << 16) |
- dg00x->rx_resources.channel);
- err = snd_fw_transaction(dg00x->unit, TCODE_WRITE_QUADLET_REQUEST,
- DG00X_ADDR_BASE + DG00X_OFFSET_ISOC_CHANNELS,
- &data, sizeof(data), 0);
- if (err < 0)
- goto error;
-
- return 0;
-error:
- release_resources(dg00x);
return err;
}
+static void destroy_stream(struct snd_dg00x *dg00x, struct amdtp_stream *s)
+{
+ amdtp_stream_destroy(s);
+
+ if (s == &dg00x->tx_stream)
+ fw_iso_resources_destroy(&dg00x->tx_resources);
+ else
+ fw_iso_resources_destroy(&dg00x->rx_resources);
+}
+
int snd_dg00x_stream_init_duplex(struct snd_dg00x *dg00x)
{
int err;
- /* For out-stream. */
- err = fw_iso_resources_init(&dg00x->rx_resources, dg00x->unit);
+ err = init_stream(dg00x, &dg00x->rx_stream);
if (err < 0)
- goto error;
- err = amdtp_dot_init(&dg00x->rx_stream, dg00x->unit, AMDTP_OUT_STREAM);
- if (err < 0)
- goto error;
+ return err;
- /* For in-stream. */
- err = fw_iso_resources_init(&dg00x->tx_resources, dg00x->unit);
+ err = init_stream(dg00x, &dg00x->tx_stream);
if (err < 0)
- goto error;
- err = amdtp_dot_init(&dg00x->tx_stream, dg00x->unit, AMDTP_IN_STREAM);
- if (err < 0)
- goto error;
+ destroy_stream(dg00x, &dg00x->rx_stream);
- return 0;
-error:
- snd_dg00x_stream_destroy_duplex(dg00x);
+ err = amdtp_domain_init(&dg00x->domain);
+ if (err < 0) {
+ destroy_stream(dg00x, &dg00x->rx_stream);
+ destroy_stream(dg00x, &dg00x->tx_stream);
+ }
+
return err;
}
@@ -266,35 +277,71 @@
*/
void snd_dg00x_stream_destroy_duplex(struct snd_dg00x *dg00x)
{
- amdtp_stream_destroy(&dg00x->rx_stream);
- fw_iso_resources_destroy(&dg00x->rx_resources);
+ amdtp_domain_destroy(&dg00x->domain);
- amdtp_stream_destroy(&dg00x->tx_stream);
- fw_iso_resources_destroy(&dg00x->tx_resources);
+ destroy_stream(dg00x, &dg00x->rx_stream);
+ destroy_stream(dg00x, &dg00x->tx_stream);
}
-int snd_dg00x_stream_start_duplex(struct snd_dg00x *dg00x, unsigned int rate)
+int snd_dg00x_stream_reserve_duplex(struct snd_dg00x *dg00x, unsigned int rate)
{
unsigned int curr_rate;
+ int err;
+
+ err = snd_dg00x_stream_get_local_rate(dg00x, &curr_rate);
+ if (err < 0)
+ return err;
+ if (rate == 0)
+ rate = curr_rate;
+
+ if (dg00x->substreams_counter == 0 || curr_rate != rate) {
+ amdtp_domain_stop(&dg00x->domain);
+
+ finish_session(dg00x);
+
+ fw_iso_resources_free(&dg00x->tx_resources);
+ fw_iso_resources_free(&dg00x->rx_resources);
+
+ err = snd_dg00x_stream_set_local_rate(dg00x, rate);
+ if (err < 0)
+ return err;
+
+ err = keep_resources(dg00x, &dg00x->rx_stream, rate);
+ if (err < 0)
+ return err;
+
+ err = keep_resources(dg00x, &dg00x->tx_stream, rate);
+ if (err < 0) {
+ fw_iso_resources_free(&dg00x->rx_resources);
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+int snd_dg00x_stream_start_duplex(struct snd_dg00x *dg00x)
+{
+ unsigned int generation = dg00x->rx_resources.generation;
int err = 0;
if (dg00x->substreams_counter == 0)
- goto end;
+ return 0;
- /* Check current sampling rate. */
- err = snd_dg00x_stream_get_local_rate(dg00x, &curr_rate);
- if (err < 0)
- goto error;
- if (rate == 0)
- rate = curr_rate;
- if (curr_rate != rate ||
- amdtp_streaming_error(&dg00x->tx_stream) ||
+ if (amdtp_streaming_error(&dg00x->tx_stream) ||
amdtp_streaming_error(&dg00x->rx_stream)) {
+ amdtp_domain_stop(&dg00x->domain);
finish_session(dg00x);
+ }
- amdtp_stream_stop(&dg00x->tx_stream);
- amdtp_stream_stop(&dg00x->rx_stream);
- release_resources(dg00x);
+ if (generation != fw_parent_device(dg00x->unit)->card->generation) {
+ err = fw_iso_resources_update(&dg00x->tx_resources);
+ if (err < 0)
+ goto error;
+
+ err = fw_iso_resources_update(&dg00x->rx_resources);
+ if (err < 0)
+ goto error;
}
/*
@@ -302,75 +349,52 @@
* which source of clock is used.
*/
if (!amdtp_stream_running(&dg00x->rx_stream)) {
- err = snd_dg00x_stream_set_local_rate(dg00x, rate);
- if (err < 0)
- goto error;
-
- err = keep_resources(dg00x, rate);
- if (err < 0)
- goto error;
+ int spd = fw_parent_device(dg00x->unit)->max_speed;
err = begin_session(dg00x);
if (err < 0)
goto error;
- err = amdtp_stream_start(&dg00x->rx_stream,
- dg00x->rx_resources.channel,
- fw_parent_device(dg00x->unit)->max_speed);
+ err = amdtp_domain_add_stream(&dg00x->domain, &dg00x->rx_stream,
+ dg00x->rx_resources.channel, spd);
+ if (err < 0)
+ goto error;
+
+ err = amdtp_domain_add_stream(&dg00x->domain, &dg00x->tx_stream,
+ dg00x->tx_resources.channel, spd);
+ if (err < 0)
+ goto error;
+
+ err = amdtp_domain_start(&dg00x->domain);
if (err < 0)
goto error;
if (!amdtp_stream_wait_callback(&dg00x->rx_stream,
- CALLBACK_TIMEOUT)) {
+ CALLBACK_TIMEOUT) ||
+ !amdtp_stream_wait_callback(&dg00x->tx_stream,
+ CALLBACK_TIMEOUT)) {
err = -ETIMEDOUT;
goto error;
}
}
- /*
- * The value of SYT field in transmitted packets is always 0x0000. Thus,
- * duplex streams with timestamp synchronization cannot be built.
- */
- if (!amdtp_stream_running(&dg00x->tx_stream)) {
- err = amdtp_stream_start(&dg00x->tx_stream,
- dg00x->tx_resources.channel,
- fw_parent_device(dg00x->unit)->max_speed);
- if (err < 0)
- goto error;
-
- if (!amdtp_stream_wait_callback(&dg00x->tx_stream,
- CALLBACK_TIMEOUT)) {
- err = -ETIMEDOUT;
- goto error;
- }
- }
-end:
- return err;
+ return 0;
error:
+ amdtp_domain_stop(&dg00x->domain);
finish_session(dg00x);
- amdtp_stream_stop(&dg00x->tx_stream);
- amdtp_stream_stop(&dg00x->rx_stream);
- release_resources(dg00x);
-
return err;
}
void snd_dg00x_stream_stop_duplex(struct snd_dg00x *dg00x)
{
- if (dg00x->substreams_counter > 0)
- return;
+ if (dg00x->substreams_counter == 0) {
+ amdtp_domain_stop(&dg00x->domain);
+ finish_session(dg00x);
- amdtp_stream_stop(&dg00x->tx_stream);
- amdtp_stream_stop(&dg00x->rx_stream);
- finish_session(dg00x);
- release_resources(dg00x);
-
- /*
- * Just after finishing the session, the device may lost transmitting
- * functionality for a short time.
- */
- msleep(50);
+ fw_iso_resources_free(&dg00x->tx_resources);
+ fw_iso_resources_free(&dg00x->rx_resources);
+ }
}
void snd_dg00x_stream_update_duplex(struct snd_dg00x *dg00x)
diff --git a/sound/firewire/digi00x/digi00x-transaction.c b/sound/firewire/digi00x/digi00x-transaction.c
index af9bc85..cf0bcf1 100644
--- a/sound/firewire/digi00x/digi00x-transaction.c
+++ b/sound/firewire/digi00x/digi00x-transaction.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* digi00x-transaction.c - a part of driver for Digidesign Digi 002/003 family
*
* Copyright (c) 2014-2015 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include <sound/asound.h>
diff --git a/sound/firewire/digi00x/digi00x.c b/sound/firewire/digi00x/digi00x.c
index ef68999..1f5fc0e 100644
--- a/sound/firewire/digi00x/digi00x.c
+++ b/sound/firewire/digi00x/digi00x.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* digi00x.c - a part of driver for Digidesign Digi 002/003 family
*
* Copyright (c) 2014-2015 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "digi00x.h"
@@ -41,20 +40,12 @@
return 0;
}
-static void dg00x_free(struct snd_dg00x *dg00x)
-{
- snd_dg00x_stream_destroy_duplex(dg00x);
- snd_dg00x_transaction_unregister(dg00x);
-
- fw_unit_put(dg00x->unit);
-
- mutex_destroy(&dg00x->mutex);
- kfree(dg00x);
-}
-
static void dg00x_card_free(struct snd_card *card)
{
- dg00x_free(card->private_data);
+ struct snd_dg00x *dg00x = card->private_data;
+
+ snd_dg00x_stream_destroy_duplex(dg00x);
+ snd_dg00x_transaction_unregister(dg00x);
}
static void do_registration(struct work_struct *work)
@@ -70,6 +61,8 @@
&dg00x->card);
if (err < 0)
return;
+ dg00x->card->private_free = dg00x_card_free;
+ dg00x->card->private_data = dg00x;
err = name_card(dg00x);
if (err < 0)
@@ -101,14 +94,10 @@
if (err < 0)
goto error;
- dg00x->card->private_free = dg00x_card_free;
- dg00x->card->private_data = dg00x;
dg00x->registered = true;
return;
error:
- snd_dg00x_transaction_unregister(dg00x);
- snd_dg00x_stream_destroy_duplex(dg00x);
snd_card_free(dg00x->card);
dev_info(&dg00x->unit->device,
"Sound card registration failed: %d\n", err);
@@ -120,8 +109,9 @@
struct snd_dg00x *dg00x;
/* Allocate this independent of sound card instance. */
- dg00x = kzalloc(sizeof(struct snd_dg00x), GFP_KERNEL);
- if (dg00x == NULL)
+ dg00x = devm_kzalloc(&unit->device, sizeof(struct snd_dg00x),
+ GFP_KERNEL);
+ if (!dg00x)
return -ENOMEM;
dg00x->unit = fw_unit_get(unit);
@@ -173,12 +163,12 @@
cancel_delayed_work_sync(&dg00x->dwork);
if (dg00x->registered) {
- /* No need to wait for releasing card object in this context. */
- snd_card_free_when_closed(dg00x->card);
- } else {
- /* Don't forget this case. */
- dg00x_free(dg00x);
+ // Block till all of ALSA character devices are released.
+ snd_card_free(dg00x->card);
}
+
+ mutex_destroy(&dg00x->mutex);
+ fw_unit_put(dg00x->unit);
}
static const struct ieee1394_device_id snd_dg00x_id_table[] = {
diff --git a/sound/firewire/digi00x/digi00x.h b/sound/firewire/digi00x/digi00x.h
index 4dd1bbf..8041c65 100644
--- a/sound/firewire/digi00x/digi00x.h
+++ b/sound/firewire/digi00x/digi00x.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* digi00x.h - a part of driver for Digidesign Digi 002/003 family
*
* Copyright (c) 2014-2015 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#ifndef SOUND_DIGI00X_H_INCLUDED
@@ -60,6 +59,8 @@
/* Console models have additional MIDI ports for control surface. */
bool is_console;
+
+ struct amdtp_domain domain;
};
#define DG00X_ADDR_BASE 0xffffe0000000ull
@@ -140,7 +141,8 @@
int snd_dg00x_stream_check_external_clock(struct snd_dg00x *dg00x,
bool *detect);
int snd_dg00x_stream_init_duplex(struct snd_dg00x *dg00x);
-int snd_dg00x_stream_start_duplex(struct snd_dg00x *dg00x, unsigned int rate);
+int snd_dg00x_stream_reserve_duplex(struct snd_dg00x *dg00x, unsigned int rate);
+int snd_dg00x_stream_start_duplex(struct snd_dg00x *dg00x);
void snd_dg00x_stream_stop_duplex(struct snd_dg00x *dg00x);
void snd_dg00x_stream_update_duplex(struct snd_dg00x *dg00x);
void snd_dg00x_stream_destroy_duplex(struct snd_dg00x *dg00x);
diff --git a/sound/firewire/fcp.c b/sound/firewire/fcp.c
index 61dda82..bbfbebf 100644
--- a/sound/firewire/fcp.c
+++ b/sound/firewire/fcp.c
@@ -1,8 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Function Control Protocol (IEC 61883-1) helper functions
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include <linux/device.h>
diff --git a/sound/firewire/fireface/Makefile b/sound/firewire/fireface/Makefile
index 8f80728..3aef221 100644
--- a/sound/firewire/fireface/Makefile
+++ b/sound/firewire/fireface/Makefile
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
snd-fireface-objs := ff.o ff-transaction.o ff-midi.o ff-proc.o amdtp-ff.o \
- ff-stream.o ff-pcm.o ff-hwdep.o ff-protocol-ff400.o
+ ff-stream.o ff-pcm.o ff-hwdep.o ff-protocol-former.o \
+ ff-protocol-latter.o
obj-$(CONFIG_SND_FIREFACE) += snd-fireface.o
diff --git a/sound/firewire/fireface/amdtp-ff.c b/sound/firewire/fireface/amdtp-ff.c
index 77c7598..119c007 100644
--- a/sound/firewire/fireface/amdtp-ff.c
+++ b/sound/firewire/fireface/amdtp-ff.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* amdtp-ff.c - a part of driver for RME Fireface series
*
* Copyright (c) 2015-2017 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include <sound/pcm.h>
@@ -28,19 +27,24 @@
return amdtp_stream_set_parameters(s, rate, data_channels);
}
-static void write_pcm_s32(struct amdtp_stream *s,
- struct snd_pcm_substream *pcm,
- __le32 *buffer, unsigned int frames)
+static void write_pcm_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm,
+ __le32 *buffer, unsigned int frames,
+ unsigned int pcm_frames)
{
struct amdtp_ff *p = s->protocol;
+ unsigned int channels = p->pcm_channels;
struct snd_pcm_runtime *runtime = pcm->runtime;
- unsigned int channels, remaining_frames, i, c;
+ unsigned int pcm_buffer_pointer;
+ int remaining_frames;
const u32 *src;
+ int i, c;
- channels = p->pcm_channels;
+ pcm_buffer_pointer = s->pcm_buffer_pointer + pcm_frames;
+ pcm_buffer_pointer %= runtime->buffer_size;
+
src = (void *)runtime->dma_area +
- frames_to_bytes(runtime, s->pcm_buffer_pointer);
- remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
+ frames_to_bytes(runtime, pcm_buffer_pointer);
+ remaining_frames = runtime->buffer_size - pcm_buffer_pointer;
for (i = 0; i < frames; ++i) {
for (c = 0; c < channels; ++c) {
@@ -53,19 +57,24 @@
}
}
-static void read_pcm_s32(struct amdtp_stream *s,
- struct snd_pcm_substream *pcm,
- __le32 *buffer, unsigned int frames)
+static void read_pcm_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm,
+ __le32 *buffer, unsigned int frames,
+ unsigned int pcm_frames)
{
struct amdtp_ff *p = s->protocol;
+ unsigned int channels = p->pcm_channels;
struct snd_pcm_runtime *runtime = pcm->runtime;
- unsigned int channels, remaining_frames, i, c;
+ unsigned int pcm_buffer_pointer;
+ int remaining_frames;
u32 *dst;
+ int i, c;
- channels = p->pcm_channels;
+ pcm_buffer_pointer = s->pcm_buffer_pointer + pcm_frames;
+ pcm_buffer_pointer %= runtime->buffer_size;
+
dst = (void *)runtime->dma_area +
- frames_to_bytes(runtime, s->pcm_buffer_pointer);
- remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
+ frames_to_bytes(runtime, pcm_buffer_pointer);
+ remaining_frames = runtime->buffer_size - pcm_buffer_pointer;
for (i = 0; i < frames; ++i) {
for (c = 0; c < channels; ++c) {
@@ -103,38 +112,47 @@
return amdtp_stream_add_pcm_hw_constraints(s, runtime);
}
-static unsigned int process_rx_data_blocks(struct amdtp_stream *s,
- __be32 *buffer,
- unsigned int data_blocks,
- unsigned int *syt)
+static unsigned int process_it_ctx_payloads(struct amdtp_stream *s,
+ const struct pkt_desc *descs,
+ unsigned int packets,
+ struct snd_pcm_substream *pcm)
{
- struct snd_pcm_substream *pcm = READ_ONCE(s->pcm);
- unsigned int pcm_frames;
+ unsigned int pcm_frames = 0;
+ int i;
- if (pcm) {
- write_pcm_s32(s, pcm, (__le32 *)buffer, data_blocks);
- pcm_frames = data_blocks;
- } else {
- write_pcm_silence(s, (__le32 *)buffer, data_blocks);
- pcm_frames = 0;
+ for (i = 0; i < packets; ++i) {
+ const struct pkt_desc *desc = descs + i;
+ __le32 *buf = (__le32 *)desc->ctx_payload;
+ unsigned int data_blocks = desc->data_blocks;
+
+ if (pcm) {
+ write_pcm_s32(s, pcm, buf, data_blocks, pcm_frames);
+ pcm_frames += data_blocks;
+ } else {
+ write_pcm_silence(s, buf, data_blocks);
+ }
}
return pcm_frames;
}
-static unsigned int process_tx_data_blocks(struct amdtp_stream *s,
- __be32 *buffer,
- unsigned int data_blocks,
- unsigned int *syt)
+static unsigned int process_ir_ctx_payloads(struct amdtp_stream *s,
+ const struct pkt_desc *descs,
+ unsigned int packets,
+ struct snd_pcm_substream *pcm)
{
- struct snd_pcm_substream *pcm = READ_ONCE(s->pcm);
- unsigned int pcm_frames;
+ unsigned int pcm_frames = 0;
+ int i;
- if (pcm) {
- read_pcm_s32(s, pcm, (__le32 *)buffer, data_blocks);
- pcm_frames = data_blocks;
- } else {
- pcm_frames = 0;
+ for (i = 0; i < packets; ++i) {
+ const struct pkt_desc *desc = descs + i;
+ __le32 *buf = (__le32 *)desc->ctx_payload;
+ unsigned int data_blocks = desc->data_blocks;
+
+ if (pcm) {
+ read_pcm_s32(s, pcm, buf, data_blocks, pcm_frames);
+ pcm_frames += data_blocks;
+ }
}
return pcm_frames;
@@ -143,13 +161,13 @@
int amdtp_ff_init(struct amdtp_stream *s, struct fw_unit *unit,
enum amdtp_stream_direction dir)
{
- amdtp_stream_process_data_blocks_t process_data_blocks;
+ amdtp_stream_process_ctx_payloads_t process_ctx_payloads;
if (dir == AMDTP_IN_STREAM)
- process_data_blocks = process_tx_data_blocks;
+ process_ctx_payloads = process_ir_ctx_payloads;
else
- process_data_blocks = process_rx_data_blocks;
+ process_ctx_payloads = process_it_ctx_payloads;
return amdtp_stream_init(s, unit, dir, CIP_NO_HEADER, 0,
- process_data_blocks, sizeof(struct amdtp_ff));
+ process_ctx_payloads, sizeof(struct amdtp_ff));
}
diff --git a/sound/firewire/fireface/ff-hwdep.c b/sound/firewire/fireface/ff-hwdep.c
index 336c007..e73e8d2 100644
--- a/sound/firewire/fireface/ff-hwdep.c
+++ b/sound/firewire/fireface/ff-hwdep.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* ff-hwdep.c - a part of driver for RME Fireface series
*
* Copyright (c) 2015-2017 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
/*
diff --git a/sound/firewire/fireface/ff-midi.c b/sound/firewire/fireface/ff-midi.c
index 6a49611..25821d1 100644
--- a/sound/firewire/fireface/ff-midi.c
+++ b/sound/firewire/fireface/ff-midi.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* ff-midi.c - a part of driver for RME Fireface series
*
* Copyright (c) 2015-2017 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "ff.h"
@@ -19,7 +18,7 @@
struct snd_ff *ff = substream->rmidi->private_data;
/* Initialize internal status. */
- ff->running_status[substream->number] = 0;
+ ff->on_sysex[substream->number] = 0;
ff->rx_midi_error[substream->number] = false;
WRITE_ONCE(ff->rx_midi_substreams[substream->number], substream);
diff --git a/sound/firewire/fireface/ff-pcm.c b/sound/firewire/fireface/ff-pcm.c
index bf47f9e..9eab3ad 100644
--- a/sound/firewire/fireface/ff-pcm.c
+++ b/sound/firewire/fireface/ff-pcm.c
@@ -1,18 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* ff-pcm.c - a part of driver for RME Fireface series
*
* Copyright (c) 2015-2017 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "ff.h"
-static inline unsigned int get_multiplier_mode_with_index(unsigned int index)
-{
- return ((int)index - 1) / 2;
-}
-
static int hw_rule_rate(struct snd_pcm_hw_params *params,
struct snd_pcm_hw_rule *rule)
{
@@ -24,10 +18,16 @@
struct snd_interval t = {
.min = UINT_MAX, .max = 0, .integer = 1
};
- unsigned int i, mode;
+ unsigned int i;
for (i = 0; i < ARRAY_SIZE(amdtp_rate_table); i++) {
- mode = get_multiplier_mode_with_index(i);
+ enum snd_ff_stream_mode mode;
+ int err;
+
+ err = snd_ff_stream_get_multiplier_mode(i, &mode);
+ if (err < 0)
+ continue;
+
if (!snd_interval_test(c, pcm_channels[mode]))
continue;
@@ -49,10 +49,16 @@
struct snd_interval t = {
.min = UINT_MAX, .max = 0, .integer = 1
};
- unsigned int i, mode;
+ unsigned int i;
for (i = 0; i < ARRAY_SIZE(amdtp_rate_table); i++) {
- mode = get_multiplier_mode_with_index(i);
+ enum snd_ff_stream_mode mode;
+ int err;
+
+ err = snd_ff_stream_get_multiplier_mode(i, &mode);
+ if (err < 0)
+ continue;
+
if (!snd_interval_test(r, amdtp_rate_table[i]))
continue;
@@ -66,7 +72,6 @@
static void limit_channels_and_rates(struct snd_pcm_hardware *hw,
const unsigned int *pcm_channels)
{
- unsigned int mode;
unsigned int rate, channels;
int i;
@@ -76,7 +81,12 @@
hw->rate_max = 0;
for (i = 0; i < ARRAY_SIZE(amdtp_rate_table); i++) {
- mode = get_multiplier_mode_with_index(i);
+ enum snd_ff_stream_mode mode;
+ int err;
+
+ err = snd_ff_stream_get_multiplier_mode(i, &mode);
+ if (err < 0)
+ continue;
channels = pcm_channels[mode];
if (pcm_channels[mode] == 0)
@@ -188,8 +198,8 @@
return 0;
}
-static int pcm_capture_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
+static int pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
{
struct snd_ff *ff = substream->private_data;
int err;
@@ -200,58 +210,26 @@
return err;
if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
+ unsigned int rate = params_rate(hw_params);
+
mutex_lock(&ff->mutex);
- ff->substreams_counter++;
+ err = snd_ff_stream_reserve_duplex(ff, rate);
+ if (err >= 0)
+ ++ff->substreams_counter;
mutex_unlock(&ff->mutex);
}
return 0;
}
-static int pcm_playback_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
-{
- struct snd_ff *ff = substream->private_data;
- int err;
-
- err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
- params_buffer_bytes(hw_params));
- if (err < 0)
- return err;
-
- if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
- mutex_lock(&ff->mutex);
- ff->substreams_counter++;
- mutex_unlock(&ff->mutex);
- }
-
- return 0;
-}
-
-static int pcm_capture_hw_free(struct snd_pcm_substream *substream)
+static int pcm_hw_free(struct snd_pcm_substream *substream)
{
struct snd_ff *ff = substream->private_data;
mutex_lock(&ff->mutex);
if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN)
- ff->substreams_counter--;
-
- snd_ff_stream_stop_duplex(ff);
-
- mutex_unlock(&ff->mutex);
-
- return snd_pcm_lib_free_vmalloc_buffer(substream);
-}
-
-static int pcm_playback_hw_free(struct snd_pcm_substream *substream)
-{
- struct snd_ff *ff = substream->private_data;
-
- mutex_lock(&ff->mutex);
-
- if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN)
- ff->substreams_counter--;
+ --ff->substreams_counter;
snd_ff_stream_stop_duplex(ff);
@@ -364,8 +342,8 @@
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,
- .hw_params = pcm_capture_hw_params,
- .hw_free = pcm_capture_hw_free,
+ .hw_params = pcm_hw_params,
+ .hw_free = pcm_hw_free,
.prepare = pcm_capture_prepare,
.trigger = pcm_capture_trigger,
.pointer = pcm_capture_pointer,
@@ -376,8 +354,8 @@
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,
- .hw_params = pcm_playback_hw_params,
- .hw_free = pcm_playback_hw_free,
+ .hw_params = pcm_hw_params,
+ .hw_free = pcm_hw_free,
.prepare = pcm_playback_prepare,
.trigger = pcm_playback_trigger,
.pointer = pcm_playback_pointer,
diff --git a/sound/firewire/fireface/ff-proc.c b/sound/firewire/fireface/ff-proc.c
index 40ccbfd..4aecc8d 100644
--- a/sound/firewire/fireface/ff-proc.c
+++ b/sound/firewire/fireface/ff-proc.c
@@ -1,27 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* ff-proc.c - a part of driver for RME Fireface series
*
* Copyright (c) 2015-2017 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "./ff.h"
-static void proc_dump_clock_config(struct snd_info_entry *entry,
- struct snd_info_buffer *buffer)
+const char *snd_ff_proc_get_clk_label(enum snd_ff_clock_src src)
{
- struct snd_ff *ff = entry->private_data;
+ static const char *const labels[] = {
+ "Internal",
+ "S/PDIF",
+ "ADAT1",
+ "ADAT2",
+ "Word",
+ "LTC",
+ };
- ff->spec->protocol->dump_clock_config(ff, buffer);
+ if (src >= ARRAY_SIZE(labels))
+ return NULL;
+
+ return labels[src];
}
-static void proc_dump_sync_status(struct snd_info_entry *entry,
- struct snd_info_buffer *buffer)
+static void proc_dump_status(struct snd_info_entry *entry,
+ struct snd_info_buffer *buffer)
{
struct snd_ff *ff = entry->private_data;
- ff->spec->protocol->dump_sync_status(ff, buffer);
+ ff->spec->protocol->dump_status(ff, buffer);
}
static void add_node(struct snd_ff *ff, struct snd_info_entry *root,
@@ -32,12 +40,8 @@
struct snd_info_entry *entry;
entry = snd_info_create_card_entry(ff->card, name, root);
- if (entry == NULL)
- return;
-
- snd_info_set_text_ops(entry, ff, op);
- if (snd_info_register(entry) < 0)
- snd_info_free_entry(entry);
+ if (entry)
+ snd_info_set_text_ops(entry, ff, op);
}
void snd_ff_proc_init(struct snd_ff *ff)
@@ -53,11 +57,6 @@
if (root == NULL)
return;
root->mode = S_IFDIR | 0555;
- if (snd_info_register(root) < 0) {
- snd_info_free_entry(root);
- return;
- }
- add_node(ff, root, "clock-config", proc_dump_clock_config);
- add_node(ff, root, "sync-status", proc_dump_sync_status);
+ add_node(ff, root, "status", proc_dump_status);
}
diff --git a/sound/firewire/fireface/ff-protocol-ff400.c b/sound/firewire/fireface/ff-protocol-ff400.c
deleted file mode 100644
index 654a503..0000000
--- a/sound/firewire/fireface/ff-protocol-ff400.c
+++ /dev/null
@@ -1,374 +0,0 @@
-/*
- * ff-protocol-ff400.c - a part of driver for RME Fireface series
- *
- * Copyright (c) 2015-2017 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
- */
-
-#include <linux/delay.h>
-#include "ff.h"
-
-#define FF400_STF 0x000080100500ull
-#define FF400_RX_PACKET_FORMAT 0x000080100504ull
-#define FF400_ISOC_COMM_START 0x000080100508ull
-#define FF400_TX_PACKET_FORMAT 0x00008010050cull
-#define FF400_ISOC_COMM_STOP 0x000080100510ull
-#define FF400_SYNC_STATUS 0x0000801c0000ull
-#define FF400_FETCH_PCM_FRAMES 0x0000801c0000ull /* For block request. */
-#define FF400_CLOCK_CONFIG 0x0000801c0004ull
-
-#define FF400_MIDI_HIGH_ADDR 0x0000801003f4ull
-#define FF400_MIDI_RX_PORT_0 0x000080180000ull
-#define FF400_MIDI_RX_PORT_1 0x000080190000ull
-
-static int ff400_get_clock(struct snd_ff *ff, unsigned int *rate,
- enum snd_ff_clock_src *src)
-{
- __le32 reg;
- u32 data;
- int err;
-
- err = snd_fw_transaction(ff->unit, TCODE_READ_QUADLET_REQUEST,
- FF400_CLOCK_CONFIG, ®, sizeof(reg), 0);
- if (err < 0)
- return err;
- data = le32_to_cpu(reg);
-
- /* Calculate sampling rate. */
- switch ((data >> 1) & 0x03) {
- case 0x01:
- *rate = 32000;
- break;
- case 0x00:
- *rate = 44100;
- break;
- case 0x03:
- *rate = 48000;
- break;
- case 0x02:
- default:
- return -EIO;
- }
-
- if (data & 0x08)
- *rate *= 2;
- else if (data & 0x10)
- *rate *= 4;
-
- /* Calculate source of clock. */
- if (data & 0x01) {
- *src = SND_FF_CLOCK_SRC_INTERNAL;
- } else {
- /* TODO: 0x00, 0x01, 0x02, 0x06, 0x07? */
- switch ((data >> 10) & 0x07) {
- case 0x03:
- *src = SND_FF_CLOCK_SRC_SPDIF;
- break;
- case 0x04:
- *src = SND_FF_CLOCK_SRC_WORD;
- break;
- case 0x05:
- *src = SND_FF_CLOCK_SRC_LTC;
- break;
- case 0x00:
- default:
- *src = SND_FF_CLOCK_SRC_ADAT;
- break;
- }
- }
-
- return 0;
-}
-
-static int ff400_begin_session(struct snd_ff *ff, unsigned int rate)
-{
- __le32 reg;
- int i, err;
-
- /* Check whether the given value is supported or not. */
- for (i = 0; i < CIP_SFC_COUNT; i++) {
- if (amdtp_rate_table[i] == rate)
- break;
- }
- if (i == CIP_SFC_COUNT)
- return -EINVAL;
-
- /* Set the number of data blocks transferred in a second. */
- reg = cpu_to_le32(rate);
- err = snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
- FF400_STF, ®, sizeof(reg), 0);
- if (err < 0)
- return err;
-
- msleep(100);
-
- /*
- * Set isochronous channel and the number of quadlets of received
- * packets.
- */
- reg = cpu_to_le32(((ff->rx_stream.data_block_quadlets << 3) << 8) |
- ff->rx_resources.channel);
- err = snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
- FF400_RX_PACKET_FORMAT, ®, sizeof(reg), 0);
- if (err < 0)
- return err;
-
- /*
- * Set isochronous channel and the number of quadlets of transmitted
- * packet.
- */
- /* TODO: investigate the purpose of this 0x80. */
- reg = cpu_to_le32((0x80 << 24) |
- (ff->tx_resources.channel << 5) |
- (ff->tx_stream.data_block_quadlets));
- err = snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
- FF400_TX_PACKET_FORMAT, ®, sizeof(reg), 0);
- if (err < 0)
- return err;
-
- /* Allow to transmit packets. */
- reg = cpu_to_le32(0x00000001);
- return snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
- FF400_ISOC_COMM_START, ®, sizeof(reg), 0);
-}
-
-static void ff400_finish_session(struct snd_ff *ff)
-{
- __le32 reg;
-
- reg = cpu_to_le32(0x80000000);
- snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
- FF400_ISOC_COMM_STOP, ®, sizeof(reg), 0);
-}
-
-static int ff400_switch_fetching_mode(struct snd_ff *ff, bool enable)
-{
- __le32 *reg;
- int i;
- int err;
-
- reg = kcalloc(18, sizeof(__le32), GFP_KERNEL);
- if (reg == NULL)
- return -ENOMEM;
-
- if (enable) {
- /*
- * Each quadlet is corresponding to data channels in a data
- * blocks in reverse order. Precisely, quadlets for available
- * data channels should be enabled. Here, I take second best
- * to fetch PCM frames from all of data channels regardless of
- * stf.
- */
- for (i = 0; i < 18; ++i)
- reg[i] = cpu_to_le32(0x00000001);
- }
-
- err = snd_fw_transaction(ff->unit, TCODE_WRITE_BLOCK_REQUEST,
- FF400_FETCH_PCM_FRAMES, reg,
- sizeof(__le32) * 18, 0);
- kfree(reg);
- return err;
-}
-
-static void ff400_dump_sync_status(struct snd_ff *ff,
- struct snd_info_buffer *buffer)
-{
- __le32 reg;
- u32 data;
- int err;
-
- err = snd_fw_transaction(ff->unit, TCODE_READ_QUADLET_REQUEST,
- FF400_SYNC_STATUS, ®, sizeof(reg), 0);
- if (err < 0)
- return;
-
- data = le32_to_cpu(reg);
-
- snd_iprintf(buffer, "External source detection:\n");
-
- snd_iprintf(buffer, "Word Clock:");
- if ((data >> 24) & 0x20) {
- if ((data >> 24) & 0x40)
- snd_iprintf(buffer, "sync\n");
- else
- snd_iprintf(buffer, "lock\n");
- } else {
- snd_iprintf(buffer, "none\n");
- }
-
- snd_iprintf(buffer, "S/PDIF:");
- if ((data >> 16) & 0x10) {
- if ((data >> 16) & 0x04)
- snd_iprintf(buffer, "sync\n");
- else
- snd_iprintf(buffer, "lock\n");
- } else {
- snd_iprintf(buffer, "none\n");
- }
-
- snd_iprintf(buffer, "ADAT:");
- if ((data >> 8) & 0x04) {
- if ((data >> 8) & 0x10)
- snd_iprintf(buffer, "sync\n");
- else
- snd_iprintf(buffer, "lock\n");
- } else {
- snd_iprintf(buffer, "none\n");
- }
-
- snd_iprintf(buffer, "\nUsed external source:\n");
-
- if (((data >> 22) & 0x07) == 0x07) {
- snd_iprintf(buffer, "None\n");
- } else {
- switch ((data >> 22) & 0x07) {
- case 0x00:
- snd_iprintf(buffer, "ADAT:");
- break;
- case 0x03:
- snd_iprintf(buffer, "S/PDIF:");
- break;
- case 0x04:
- snd_iprintf(buffer, "Word:");
- break;
- case 0x07:
- snd_iprintf(buffer, "Nothing:");
- break;
- case 0x01:
- case 0x02:
- case 0x05:
- case 0x06:
- default:
- snd_iprintf(buffer, "unknown:");
- break;
- }
-
- if ((data >> 25) & 0x07) {
- switch ((data >> 25) & 0x07) {
- case 0x01:
- snd_iprintf(buffer, "32000\n");
- break;
- case 0x02:
- snd_iprintf(buffer, "44100\n");
- break;
- case 0x03:
- snd_iprintf(buffer, "48000\n");
- break;
- case 0x04:
- snd_iprintf(buffer, "64000\n");
- break;
- case 0x05:
- snd_iprintf(buffer, "88200\n");
- break;
- case 0x06:
- snd_iprintf(buffer, "96000\n");
- break;
- case 0x07:
- snd_iprintf(buffer, "128000\n");
- break;
- case 0x08:
- snd_iprintf(buffer, "176400\n");
- break;
- case 0x09:
- snd_iprintf(buffer, "192000\n");
- break;
- case 0x00:
- snd_iprintf(buffer, "unknown\n");
- break;
- }
- }
- }
-
- snd_iprintf(buffer, "Multiplied:");
- snd_iprintf(buffer, "%d\n", (data & 0x3ff) * 250);
-}
-
-static void ff400_dump_clock_config(struct snd_ff *ff,
- struct snd_info_buffer *buffer)
-{
- __le32 reg;
- u32 data;
- unsigned int rate;
- const char *src;
- int err;
-
- err = snd_fw_transaction(ff->unit, TCODE_READ_BLOCK_REQUEST,
- FF400_CLOCK_CONFIG, ®, sizeof(reg), 0);
- if (err < 0)
- return;
-
- data = le32_to_cpu(reg);
-
- snd_iprintf(buffer, "Output S/PDIF format: %s (Emphasis: %s)\n",
- (data & 0x20) ? "Professional" : "Consumer",
- (data & 0x40) ? "on" : "off");
-
- snd_iprintf(buffer, "Optical output interface format: %s\n",
- ((data >> 8) & 0x01) ? "S/PDIF" : "ADAT");
-
- snd_iprintf(buffer, "Word output single speed: %s\n",
- ((data >> 8) & 0x20) ? "on" : "off");
-
- snd_iprintf(buffer, "S/PDIF input interface: %s\n",
- ((data >> 8) & 0x02) ? "Optical" : "Coaxial");
-
- switch ((data >> 1) & 0x03) {
- case 0x01:
- rate = 32000;
- break;
- case 0x00:
- rate = 44100;
- break;
- case 0x03:
- rate = 48000;
- break;
- case 0x02:
- default:
- return;
- }
-
- if (data & 0x08)
- rate *= 2;
- else if (data & 0x10)
- rate *= 4;
-
- snd_iprintf(buffer, "Sampling rate: %d\n", rate);
-
- if (data & 0x01) {
- src = "Internal";
- } else {
- switch ((data >> 10) & 0x07) {
- case 0x00:
- src = "ADAT";
- break;
- case 0x03:
- src = "S/PDIF";
- break;
- case 0x04:
- src = "Word";
- break;
- case 0x05:
- src = "LTC";
- break;
- default:
- return;
- }
- }
-
- snd_iprintf(buffer, "Sync to clock source: %s\n", src);
-}
-
-const struct snd_ff_protocol snd_ff_protocol_ff400 = {
- .get_clock = ff400_get_clock,
- .begin_session = ff400_begin_session,
- .finish_session = ff400_finish_session,
- .switch_fetching_mode = ff400_switch_fetching_mode,
-
- .dump_sync_status = ff400_dump_sync_status,
- .dump_clock_config = ff400_dump_clock_config,
-
- .midi_high_addr_reg = FF400_MIDI_HIGH_ADDR,
- .midi_rx_port_0_reg = FF400_MIDI_RX_PORT_0,
- .midi_rx_port_1_reg = FF400_MIDI_RX_PORT_1,
-};
diff --git a/sound/firewire/fireface/ff-protocol-former.c b/sound/firewire/fireface/ff-protocol-former.c
new file mode 100644
index 0000000..bf44cad
--- /dev/null
+++ b/sound/firewire/fireface/ff-protocol-former.c
@@ -0,0 +1,605 @@
+// SPDX-License-Identifier: GPL-2.0
+// ff-protocol-former.c - a part of driver for RME Fireface series
+//
+// Copyright (c) 2019 Takashi Sakamoto
+//
+// Licensed under the terms of the GNU General Public License, version 2.
+
+#include <linux/delay.h>
+
+#include "ff.h"
+
+#define FORMER_REG_SYNC_STATUS 0x0000801c0000ull
+/* For block write request. */
+#define FORMER_REG_FETCH_PCM_FRAMES 0x0000801c0000ull
+#define FORMER_REG_CLOCK_CONFIG 0x0000801c0004ull
+
+static int parse_clock_bits(u32 data, unsigned int *rate,
+ enum snd_ff_clock_src *src)
+{
+ static const struct {
+ unsigned int rate;
+ u32 mask;
+ } *rate_entry, rate_entries[] = {
+ { 32000, 0x00000002, },
+ { 44100, 0x00000000, },
+ { 48000, 0x00000006, },
+ { 64000, 0x0000000a, },
+ { 88200, 0x00000008, },
+ { 96000, 0x0000000e, },
+ { 128000, 0x00000012, },
+ { 176400, 0x00000010, },
+ { 192000, 0x00000016, },
+ };
+ static const struct {
+ enum snd_ff_clock_src src;
+ u32 mask;
+ } *clk_entry, clk_entries[] = {
+ { SND_FF_CLOCK_SRC_ADAT1, 0x00000000, },
+ { SND_FF_CLOCK_SRC_ADAT2, 0x00000400, },
+ { SND_FF_CLOCK_SRC_SPDIF, 0x00000c00, },
+ { SND_FF_CLOCK_SRC_WORD, 0x00001000, },
+ { SND_FF_CLOCK_SRC_LTC, 0x00001800, },
+ };
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(rate_entries); ++i) {
+ rate_entry = rate_entries + i;
+ if ((data & 0x0000001e) == rate_entry->mask) {
+ *rate = rate_entry->rate;
+ break;
+ }
+ }
+ if (i == ARRAY_SIZE(rate_entries))
+ return -EIO;
+
+ if (data & 0x00000001) {
+ *src = SND_FF_CLOCK_SRC_INTERNAL;
+ } else {
+ for (i = 0; i < ARRAY_SIZE(clk_entries); ++i) {
+ clk_entry = clk_entries + i;
+ if ((data & 0x00001c00) == clk_entry->mask) {
+ *src = clk_entry->src;
+ break;
+ }
+ }
+ if (i == ARRAY_SIZE(clk_entries))
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int former_get_clock(struct snd_ff *ff, unsigned int *rate,
+ enum snd_ff_clock_src *src)
+{
+ __le32 reg;
+ u32 data;
+ int err;
+
+ err = snd_fw_transaction(ff->unit, TCODE_READ_QUADLET_REQUEST,
+ FORMER_REG_CLOCK_CONFIG, ®, sizeof(reg), 0);
+ if (err < 0)
+ return err;
+ data = le32_to_cpu(reg);
+
+ return parse_clock_bits(data, rate, src);
+}
+
+static int former_switch_fetching_mode(struct snd_ff *ff, bool enable)
+{
+ unsigned int count;
+ __le32 *reg;
+ int i;
+ int err;
+
+ count = 0;
+ for (i = 0; i < SND_FF_STREAM_MODE_COUNT; ++i)
+ count = max(count, ff->spec->pcm_playback_channels[i]);
+
+ reg = kcalloc(count, sizeof(__le32), GFP_KERNEL);
+ if (!reg)
+ return -ENOMEM;
+
+ if (!enable) {
+ /*
+ * Each quadlet is corresponding to data channels in a data
+ * blocks in reverse order. Precisely, quadlets for available
+ * data channels should be enabled. Here, I take second best
+ * to fetch PCM frames from all of data channels regardless of
+ * stf.
+ */
+ for (i = 0; i < count; ++i)
+ reg[i] = cpu_to_le32(0x00000001);
+ }
+
+ err = snd_fw_transaction(ff->unit, TCODE_WRITE_BLOCK_REQUEST,
+ FORMER_REG_FETCH_PCM_FRAMES, reg,
+ sizeof(__le32) * count, 0);
+ kfree(reg);
+ return err;
+}
+
+static void dump_clock_config(struct snd_ff *ff, struct snd_info_buffer *buffer)
+{
+ __le32 reg;
+ u32 data;
+ unsigned int rate;
+ enum snd_ff_clock_src src;
+ const char *label;
+ int err;
+
+ err = snd_fw_transaction(ff->unit, TCODE_READ_BLOCK_REQUEST,
+ FORMER_REG_CLOCK_CONFIG, ®, sizeof(reg), 0);
+ if (err < 0)
+ return;
+ data = le32_to_cpu(reg);
+
+ snd_iprintf(buffer, "Output S/PDIF format: %s (Emphasis: %s)\n",
+ (data & 0x00000020) ? "Professional" : "Consumer",
+ (data & 0x00000040) ? "on" : "off");
+
+ snd_iprintf(buffer, "Optical output interface format: %s\n",
+ (data & 0x00000100) ? "S/PDIF" : "ADAT");
+
+ snd_iprintf(buffer, "Word output single speed: %s\n",
+ (data & 0x00002000) ? "on" : "off");
+
+ snd_iprintf(buffer, "S/PDIF input interface: %s\n",
+ (data & 0x00000200) ? "Optical" : "Coaxial");
+
+ err = parse_clock_bits(data, &rate, &src);
+ if (err < 0)
+ return;
+ label = snd_ff_proc_get_clk_label(src);
+ if (!label)
+ return;
+
+ snd_iprintf(buffer, "Clock configuration: %d %s\n", rate, label);
+}
+
+static void dump_sync_status(struct snd_ff *ff, struct snd_info_buffer *buffer)
+{
+ static const struct {
+ char *const label;
+ u32 locked_mask;
+ u32 synced_mask;
+ } *clk_entry, clk_entries[] = {
+ { "WDClk", 0x40000000, 0x20000000, },
+ { "S/PDIF", 0x00080000, 0x00040000, },
+ { "ADAT1", 0x00000400, 0x00001000, },
+ { "ADAT2", 0x00000800, 0x00002000, },
+ };
+ static const struct {
+ char *const label;
+ u32 mask;
+ } *referred_entry, referred_entries[] = {
+ { "ADAT1", 0x00000000, },
+ { "ADAT2", 0x00400000, },
+ { "S/PDIF", 0x00c00000, },
+ { "WDclk", 0x01000000, },
+ { "TCO", 0x01400000, },
+ };
+ static const struct {
+ unsigned int rate;
+ u32 mask;
+ } *rate_entry, rate_entries[] = {
+ { 32000, 0x02000000, },
+ { 44100, 0x04000000, },
+ { 48000, 0x06000000, },
+ { 64000, 0x08000000, },
+ { 88200, 0x0a000000, },
+ { 96000, 0x0c000000, },
+ { 128000, 0x0e000000, },
+ { 176400, 0x10000000, },
+ { 192000, 0x12000000, },
+ };
+ __le32 reg[2];
+ u32 data[2];
+ int i;
+ int err;
+
+ err = snd_fw_transaction(ff->unit, TCODE_READ_BLOCK_REQUEST,
+ FORMER_REG_SYNC_STATUS, reg, sizeof(reg), 0);
+ if (err < 0)
+ return;
+ data[0] = le32_to_cpu(reg[0]);
+ data[1] = le32_to_cpu(reg[1]);
+
+ snd_iprintf(buffer, "External source detection:\n");
+
+ for (i = 0; i < ARRAY_SIZE(clk_entries); ++i) {
+ const char *state;
+
+ clk_entry = clk_entries + i;
+ if (data[0] & clk_entry->locked_mask) {
+ if (data[0] & clk_entry->synced_mask)
+ state = "sync";
+ else
+ state = "lock";
+ } else {
+ state = "none";
+ }
+
+ snd_iprintf(buffer, "%s: %s\n", clk_entry->label, state);
+ }
+
+ snd_iprintf(buffer, "Referred clock:\n");
+
+ if (data[1] & 0x00000001) {
+ snd_iprintf(buffer, "Internal\n");
+ } else {
+ unsigned int rate;
+ const char *label;
+
+ for (i = 0; i < ARRAY_SIZE(referred_entries); ++i) {
+ referred_entry = referred_entries + i;
+ if ((data[0] & 0x1e0000) == referred_entry->mask) {
+ label = referred_entry->label;
+ break;
+ }
+ }
+ if (i == ARRAY_SIZE(referred_entries))
+ label = "none";
+
+ for (i = 0; i < ARRAY_SIZE(rate_entries); ++i) {
+ rate_entry = rate_entries + i;
+ if ((data[0] & 0x1e000000) == rate_entry->mask) {
+ rate = rate_entry->rate;
+ break;
+ }
+ }
+ if (i == ARRAY_SIZE(rate_entries))
+ rate = 0;
+
+ snd_iprintf(buffer, "%s %d\n", label, rate);
+ }
+}
+
+static void former_dump_status(struct snd_ff *ff,
+ struct snd_info_buffer *buffer)
+{
+ dump_clock_config(ff, buffer);
+ dump_sync_status(ff, buffer);
+}
+
+static int former_fill_midi_msg(struct snd_ff *ff,
+ struct snd_rawmidi_substream *substream,
+ unsigned int port)
+{
+ u8 *buf = (u8 *)ff->msg_buf[port];
+ int len;
+ int i;
+
+ len = snd_rawmidi_transmit_peek(substream, buf,
+ SND_FF_MAXIMIM_MIDI_QUADS);
+ if (len <= 0)
+ return len;
+
+ // One quadlet includes one byte.
+ for (i = len - 1; i >= 0; --i)
+ ff->msg_buf[port][i] = cpu_to_le32(buf[i]);
+ ff->rx_bytes[port] = len;
+
+ return len;
+}
+
+#define FF800_STF 0x0000fc88f000
+#define FF800_RX_PACKET_FORMAT 0x0000fc88f004
+#define FF800_ALLOC_TX_STREAM 0x0000fc88f008
+#define FF800_ISOC_COMM_START 0x0000fc88f00c
+#define FF800_TX_S800_FLAG 0x00000800
+#define FF800_ISOC_COMM_STOP 0x0000fc88f010
+
+#define FF800_TX_PACKET_ISOC_CH 0x0000801c0008
+
+static int allocate_tx_resources(struct snd_ff *ff)
+{
+ __le32 reg;
+ unsigned int count;
+ unsigned int tx_isoc_channel;
+ int err;
+
+ reg = cpu_to_le32(ff->tx_stream.data_block_quadlets);
+ err = snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
+ FF800_ALLOC_TX_STREAM, ®, sizeof(reg), 0);
+ if (err < 0)
+ return err;
+
+ // Wait till the format of tx packet is available.
+ count = 0;
+ while (count++ < 10) {
+ u32 data;
+ err = snd_fw_transaction(ff->unit, TCODE_READ_QUADLET_REQUEST,
+ FF800_TX_PACKET_ISOC_CH, ®, sizeof(reg), 0);
+ if (err < 0)
+ return err;
+
+ data = le32_to_cpu(reg);
+ if (data != 0xffffffff) {
+ tx_isoc_channel = data;
+ break;
+ }
+
+ msleep(50);
+ }
+ if (count >= 10)
+ return -ETIMEDOUT;
+
+ // NOTE: this is a makeshift to start OHCI 1394 IR context in the
+ // channel. On the other hand, 'struct fw_iso_resources.allocated' is
+ // not true and it's not deallocated at stop.
+ ff->tx_resources.channel = tx_isoc_channel;
+
+ return 0;
+}
+
+static int ff800_allocate_resources(struct snd_ff *ff, unsigned int rate)
+{
+ u32 data;
+ __le32 reg;
+ int err;
+
+ reg = cpu_to_le32(rate);
+ err = snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
+ FF800_STF, ®, sizeof(reg), 0);
+ if (err < 0)
+ return err;
+
+ // If starting isochronous communication immediately, change of STF has
+ // no effect. In this case, the communication runs based on former STF.
+ // Let's sleep for a bit.
+ msleep(100);
+
+ // Controllers should allocate isochronous resources for rx stream.
+ err = fw_iso_resources_allocate(&ff->rx_resources,
+ amdtp_stream_get_max_payload(&ff->rx_stream),
+ fw_parent_device(ff->unit)->max_speed);
+ if (err < 0)
+ return err;
+
+ // Set isochronous channel and the number of quadlets of rx packets.
+ // This should be done before the allocation of tx resources to avoid
+ // periodical noise.
+ data = ff->rx_stream.data_block_quadlets << 3;
+ data = (data << 8) | ff->rx_resources.channel;
+ reg = cpu_to_le32(data);
+ err = snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
+ FF800_RX_PACKET_FORMAT, ®, sizeof(reg), 0);
+ if (err < 0)
+ return err;
+
+ return allocate_tx_resources(ff);
+}
+
+static int ff800_begin_session(struct snd_ff *ff, unsigned int rate)
+{
+ unsigned int generation = ff->rx_resources.generation;
+ __le32 reg;
+
+ if (generation != fw_parent_device(ff->unit)->card->generation) {
+ int err = fw_iso_resources_update(&ff->rx_resources);
+ if (err < 0)
+ return err;
+ }
+
+ reg = cpu_to_le32(0x80000000);
+ reg |= cpu_to_le32(ff->tx_stream.data_block_quadlets);
+ if (fw_parent_device(ff->unit)->max_speed == SCODE_800)
+ reg |= cpu_to_le32(FF800_TX_S800_FLAG);
+ return snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
+ FF800_ISOC_COMM_START, ®, sizeof(reg), 0);
+}
+
+static void ff800_finish_session(struct snd_ff *ff)
+{
+ __le32 reg;
+
+ reg = cpu_to_le32(0x80000000);
+ snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
+ FF800_ISOC_COMM_STOP, ®, sizeof(reg), 0);
+}
+
+// Fireface 800 doesn't allow drivers to register lower 4 bytes of destination
+// address.
+// A write transaction to clear registered higher 4 bytes of destination address
+// has an effect to suppress asynchronous transaction from device.
+static void ff800_handle_midi_msg(struct snd_ff *ff, unsigned int offset,
+ __le32 *buf, size_t length)
+{
+ int i;
+
+ for (i = 0; i < length / 4; i++) {
+ u8 byte = le32_to_cpu(buf[i]) & 0xff;
+ struct snd_rawmidi_substream *substream;
+
+ substream = READ_ONCE(ff->tx_midi_substreams[0]);
+ if (substream)
+ snd_rawmidi_receive(substream, &byte, 1);
+ }
+}
+
+const struct snd_ff_protocol snd_ff_protocol_ff800 = {
+ .handle_midi_msg = ff800_handle_midi_msg,
+ .fill_midi_msg = former_fill_midi_msg,
+ .get_clock = former_get_clock,
+ .switch_fetching_mode = former_switch_fetching_mode,
+ .allocate_resources = ff800_allocate_resources,
+ .begin_session = ff800_begin_session,
+ .finish_session = ff800_finish_session,
+ .dump_status = former_dump_status,
+};
+
+#define FF400_STF 0x000080100500ull
+#define FF400_RX_PACKET_FORMAT 0x000080100504ull
+#define FF400_ISOC_COMM_START 0x000080100508ull
+#define FF400_TX_PACKET_FORMAT 0x00008010050cull
+#define FF400_ISOC_COMM_STOP 0x000080100510ull
+
+// Fireface 400 manages isochronous channel number in 3 bit field. Therefore,
+// we can allocate between 0 and 7 channel.
+static int ff400_allocate_resources(struct snd_ff *ff, unsigned int rate)
+{
+ __le32 reg;
+ enum snd_ff_stream_mode mode;
+ int i;
+ int err;
+
+ // Check whether the given value is supported or not.
+ for (i = 0; i < CIP_SFC_COUNT; i++) {
+ if (amdtp_rate_table[i] == rate)
+ break;
+ }
+ if (i >= CIP_SFC_COUNT)
+ return -EINVAL;
+
+ // Set the number of data blocks transferred in a second.
+ reg = cpu_to_le32(rate);
+ err = snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
+ FF400_STF, ®, sizeof(reg), 0);
+ if (err < 0)
+ return err;
+
+ msleep(100);
+
+ err = snd_ff_stream_get_multiplier_mode(i, &mode);
+ if (err < 0)
+ return err;
+
+ // Keep resources for in-stream.
+ ff->tx_resources.channels_mask = 0x00000000000000ffuLL;
+ err = fw_iso_resources_allocate(&ff->tx_resources,
+ amdtp_stream_get_max_payload(&ff->tx_stream),
+ fw_parent_device(ff->unit)->max_speed);
+ if (err < 0)
+ return err;
+
+ // Keep resources for out-stream.
+ ff->rx_resources.channels_mask = 0x00000000000000ffuLL;
+ err = fw_iso_resources_allocate(&ff->rx_resources,
+ amdtp_stream_get_max_payload(&ff->rx_stream),
+ fw_parent_device(ff->unit)->max_speed);
+ if (err < 0)
+ fw_iso_resources_free(&ff->tx_resources);
+
+ return err;
+}
+
+static int ff400_begin_session(struct snd_ff *ff, unsigned int rate)
+{
+ unsigned int generation = ff->rx_resources.generation;
+ __le32 reg;
+ int err;
+
+ if (generation != fw_parent_device(ff->unit)->card->generation) {
+ err = fw_iso_resources_update(&ff->tx_resources);
+ if (err < 0)
+ return err;
+
+ err = fw_iso_resources_update(&ff->rx_resources);
+ if (err < 0)
+ return err;
+ }
+
+ // Set isochronous channel and the number of quadlets of received
+ // packets.
+ reg = cpu_to_le32(((ff->rx_stream.data_block_quadlets << 3) << 8) |
+ ff->rx_resources.channel);
+ err = snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
+ FF400_RX_PACKET_FORMAT, ®, sizeof(reg), 0);
+ if (err < 0)
+ return err;
+
+ // Set isochronous channel and the number of quadlets of transmitted
+ // packet.
+ // TODO: investigate the purpose of this 0x80.
+ reg = cpu_to_le32((0x80 << 24) |
+ (ff->tx_resources.channel << 5) |
+ (ff->tx_stream.data_block_quadlets));
+ err = snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
+ FF400_TX_PACKET_FORMAT, ®, sizeof(reg), 0);
+ if (err < 0)
+ return err;
+
+ // Allow to transmit packets.
+ reg = cpu_to_le32(0x00000001);
+ return snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
+ FF400_ISOC_COMM_START, ®, sizeof(reg), 0);
+}
+
+static void ff400_finish_session(struct snd_ff *ff)
+{
+ __le32 reg;
+
+ reg = cpu_to_le32(0x80000000);
+ snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
+ FF400_ISOC_COMM_STOP, ®, sizeof(reg), 0);
+}
+
+// For Fireface 400, lower 4 bytes of destination address is configured by bit
+// flag in quadlet register (little endian) at 0x'0000'801'0051c. Drivers can
+// select one of 4 options:
+//
+// bit flags: offset of destination address
+// - 0x04000000: 0x'....'....'0000'0000
+// - 0x08000000: 0x'....'....'0000'0080
+// - 0x10000000: 0x'....'....'0000'0100
+// - 0x20000000: 0x'....'....'0000'0180
+//
+// Drivers can suppress the device to transfer asynchronous transactions by
+// using below 2 bits.
+// - 0x01000000: suppress transmission
+// - 0x02000000: suppress transmission
+//
+// Actually, the register is write-only and includes the other options such as
+// input attenuation. This driver allocates destination address with '0000'0000
+// in its lower offset and expects userspace application to configure the
+// register for it.
+static void ff400_handle_midi_msg(struct snd_ff *ff, unsigned int offset,
+ __le32 *buf, size_t length)
+{
+ int i;
+
+ for (i = 0; i < length / 4; i++) {
+ u32 quad = le32_to_cpu(buf[i]);
+ u8 byte;
+ unsigned int index;
+ struct snd_rawmidi_substream *substream;
+
+ /* Message in first port. */
+ /*
+ * This value may represent the index of this unit when the same
+ * units are on the same IEEE 1394 bus. This driver doesn't use
+ * it.
+ */
+ index = (quad >> 8) & 0xff;
+ if (index > 0) {
+ substream = READ_ONCE(ff->tx_midi_substreams[0]);
+ if (substream != NULL) {
+ byte = quad & 0xff;
+ snd_rawmidi_receive(substream, &byte, 1);
+ }
+ }
+
+ /* Message in second port. */
+ index = (quad >> 24) & 0xff;
+ if (index > 0) {
+ substream = READ_ONCE(ff->tx_midi_substreams[1]);
+ if (substream != NULL) {
+ byte = (quad >> 16) & 0xff;
+ snd_rawmidi_receive(substream, &byte, 1);
+ }
+ }
+ }
+}
+
+const struct snd_ff_protocol snd_ff_protocol_ff400 = {
+ .handle_midi_msg = ff400_handle_midi_msg,
+ .fill_midi_msg = former_fill_midi_msg,
+ .get_clock = former_get_clock,
+ .switch_fetching_mode = former_switch_fetching_mode,
+ .allocate_resources = ff400_allocate_resources,
+ .begin_session = ff400_begin_session,
+ .finish_session = ff400_finish_session,
+ .dump_status = former_dump_status,
+};
diff --git a/sound/firewire/fireface/ff-protocol-latter.c b/sound/firewire/fireface/ff-protocol-latter.c
new file mode 100644
index 0000000..0e4c3a9
--- /dev/null
+++ b/sound/firewire/fireface/ff-protocol-latter.c
@@ -0,0 +1,440 @@
+// SPDX-License-Identifier: GPL-2.0
+// ff-protocol-latter - a part of driver for RME Fireface series
+//
+// Copyright (c) 2019 Takashi Sakamoto
+//
+// Licensed under the terms of the GNU General Public License, version 2.
+
+#include <linux/delay.h>
+
+#include "ff.h"
+
+#define LATTER_STF 0xffff00000004ULL
+#define LATTER_ISOC_CHANNELS 0xffff00000008ULL
+#define LATTER_ISOC_START 0xffff0000000cULL
+#define LATTER_FETCH_MODE 0xffff00000010ULL
+#define LATTER_SYNC_STATUS 0x0000801c0000ULL
+
+static int parse_clock_bits(u32 data, unsigned int *rate,
+ enum snd_ff_clock_src *src)
+{
+ static const struct {
+ unsigned int rate;
+ u32 flag;
+ } *rate_entry, rate_entries[] = {
+ { 32000, 0x00000000, },
+ { 44100, 0x01000000, },
+ { 48000, 0x02000000, },
+ { 64000, 0x04000000, },
+ { 88200, 0x05000000, },
+ { 96000, 0x06000000, },
+ { 128000, 0x08000000, },
+ { 176400, 0x09000000, },
+ { 192000, 0x0a000000, },
+ };
+ static const struct {
+ enum snd_ff_clock_src src;
+ u32 flag;
+ } *clk_entry, clk_entries[] = {
+ { SND_FF_CLOCK_SRC_SPDIF, 0x00000200, },
+ { SND_FF_CLOCK_SRC_ADAT1, 0x00000400, },
+ { SND_FF_CLOCK_SRC_WORD, 0x00000600, },
+ { SND_FF_CLOCK_SRC_INTERNAL, 0x00000e00, },
+ };
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(rate_entries); ++i) {
+ rate_entry = rate_entries + i;
+ if ((data & 0x0f000000) == rate_entry->flag) {
+ *rate = rate_entry->rate;
+ break;
+ }
+ }
+ if (i == ARRAY_SIZE(rate_entries))
+ return -EIO;
+
+ for (i = 0; i < ARRAY_SIZE(clk_entries); ++i) {
+ clk_entry = clk_entries + i;
+ if ((data & 0x000e00) == clk_entry->flag) {
+ *src = clk_entry->src;
+ break;
+ }
+ }
+ if (i == ARRAY_SIZE(clk_entries))
+ return -EIO;
+
+ return 0;
+}
+
+static int latter_get_clock(struct snd_ff *ff, unsigned int *rate,
+ enum snd_ff_clock_src *src)
+{
+ __le32 reg;
+ u32 data;
+ int err;
+
+ err = snd_fw_transaction(ff->unit, TCODE_READ_QUADLET_REQUEST,
+ LATTER_SYNC_STATUS, ®, sizeof(reg), 0);
+ if (err < 0)
+ return err;
+ data = le32_to_cpu(reg);
+
+ return parse_clock_bits(data, rate, src);
+}
+
+static int latter_switch_fetching_mode(struct snd_ff *ff, bool enable)
+{
+ u32 data;
+ __le32 reg;
+
+ if (enable)
+ data = 0x00000000;
+ else
+ data = 0xffffffff;
+ reg = cpu_to_le32(data);
+
+ return snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
+ LATTER_FETCH_MODE, ®, sizeof(reg), 0);
+}
+
+static int latter_allocate_resources(struct snd_ff *ff, unsigned int rate)
+{
+ enum snd_ff_stream_mode mode;
+ unsigned int code;
+ __le32 reg;
+ unsigned int count;
+ int i;
+ int err;
+
+ // Set the number of data blocks transferred in a second.
+ if (rate % 32000 == 0)
+ code = 0x00;
+ else if (rate % 44100 == 0)
+ code = 0x02;
+ else if (rate % 48000 == 0)
+ code = 0x04;
+ else
+ return -EINVAL;
+
+ if (rate >= 64000 && rate < 128000)
+ code |= 0x08;
+ else if (rate >= 128000 && rate < 192000)
+ code |= 0x10;
+
+ reg = cpu_to_le32(code);
+ err = snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
+ LATTER_STF, ®, sizeof(reg), 0);
+ if (err < 0)
+ return err;
+
+ // Confirm to shift transmission clock.
+ count = 0;
+ while (count++ < 10) {
+ unsigned int curr_rate;
+ enum snd_ff_clock_src src;
+
+ err = latter_get_clock(ff, &curr_rate, &src);
+ if (err < 0)
+ return err;
+
+ if (curr_rate == rate)
+ break;
+ }
+ if (count == 10)
+ return -ETIMEDOUT;
+
+ for (i = 0; i < ARRAY_SIZE(amdtp_rate_table); ++i) {
+ if (rate == amdtp_rate_table[i])
+ break;
+ }
+ if (i == ARRAY_SIZE(amdtp_rate_table))
+ return -EINVAL;
+
+ err = snd_ff_stream_get_multiplier_mode(i, &mode);
+ if (err < 0)
+ return err;
+
+ // Keep resources for in-stream.
+ ff->tx_resources.channels_mask = 0x00000000000000ffuLL;
+ err = fw_iso_resources_allocate(&ff->tx_resources,
+ amdtp_stream_get_max_payload(&ff->tx_stream),
+ fw_parent_device(ff->unit)->max_speed);
+ if (err < 0)
+ return err;
+
+ // Keep resources for out-stream.
+ ff->rx_resources.channels_mask = 0x00000000000000ffuLL;
+ err = fw_iso_resources_allocate(&ff->rx_resources,
+ amdtp_stream_get_max_payload(&ff->rx_stream),
+ fw_parent_device(ff->unit)->max_speed);
+ if (err < 0)
+ fw_iso_resources_free(&ff->tx_resources);
+
+ return err;
+}
+
+static int latter_begin_session(struct snd_ff *ff, unsigned int rate)
+{
+ unsigned int generation = ff->rx_resources.generation;
+ unsigned int flag;
+ u32 data;
+ __le32 reg;
+ int err;
+
+ if (rate >= 32000 && rate <= 48000)
+ flag = 0x92;
+ else if (rate >= 64000 && rate <= 96000)
+ flag = 0x8e;
+ else if (rate >= 128000 && rate <= 192000)
+ flag = 0x8c;
+ else
+ return -EINVAL;
+
+ if (generation != fw_parent_device(ff->unit)->card->generation) {
+ err = fw_iso_resources_update(&ff->tx_resources);
+ if (err < 0)
+ return err;
+
+ err = fw_iso_resources_update(&ff->rx_resources);
+ if (err < 0)
+ return err;
+ }
+
+ data = (ff->tx_resources.channel << 8) | ff->rx_resources.channel;
+ reg = cpu_to_le32(data);
+ err = snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
+ LATTER_ISOC_CHANNELS, ®, sizeof(reg), 0);
+ if (err < 0)
+ return err;
+
+ // Always use the maximum number of data channels in data block of
+ // packet.
+ reg = cpu_to_le32(flag);
+ return snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
+ LATTER_ISOC_START, ®, sizeof(reg), 0);
+}
+
+static void latter_finish_session(struct snd_ff *ff)
+{
+ __le32 reg;
+
+ reg = cpu_to_le32(0x00000000);
+ snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
+ LATTER_ISOC_START, ®, sizeof(reg), 0);
+}
+
+static void latter_dump_status(struct snd_ff *ff, struct snd_info_buffer *buffer)
+{
+ static const struct {
+ char *const label;
+ u32 locked_mask;
+ u32 synced_mask;
+ } *clk_entry, clk_entries[] = {
+ { "S/PDIF", 0x00000001, 0x00000010, },
+ { "ADAT", 0x00000002, 0x00000020, },
+ { "WDClk", 0x00000004, 0x00000040, },
+ };
+ __le32 reg;
+ u32 data;
+ unsigned int rate;
+ enum snd_ff_clock_src src;
+ const char *label;
+ int i;
+ int err;
+
+ err = snd_fw_transaction(ff->unit, TCODE_READ_QUADLET_REQUEST,
+ LATTER_SYNC_STATUS, ®, sizeof(reg), 0);
+ if (err < 0)
+ return;
+ data = le32_to_cpu(reg);
+
+ snd_iprintf(buffer, "External source detection:\n");
+
+ for (i = 0; i < ARRAY_SIZE(clk_entries); ++i) {
+ clk_entry = clk_entries + i;
+ snd_iprintf(buffer, "%s: ", clk_entry->label);
+ if (data & clk_entry->locked_mask) {
+ if (data & clk_entry->synced_mask)
+ snd_iprintf(buffer, "sync\n");
+ else
+ snd_iprintf(buffer, "lock\n");
+ } else {
+ snd_iprintf(buffer, "none\n");
+ }
+ }
+
+ err = parse_clock_bits(data, &rate, &src);
+ if (err < 0)
+ return;
+ label = snd_ff_proc_get_clk_label(src);
+ if (!label)
+ return;
+
+ snd_iprintf(buffer, "Referred clock: %s %d\n", label, rate);
+}
+
+// NOTE: transactions are transferred within 0x00-0x7f in allocated range of
+// address. This seems to be for check of discontinuity in receiver side.
+//
+// Like Fireface 400, drivers can select one of 4 options for lower 4 bytes of
+// destination address by bit flags in quadlet register (little endian) at
+// 0x'ffff'0000'0014:
+//
+// bit flags: offset of destination address
+// - 0x00002000: 0x'....'....'0000'0000
+// - 0x00004000: 0x'....'....'0000'0080
+// - 0x00008000: 0x'....'....'0000'0100
+// - 0x00010000: 0x'....'....'0000'0180
+//
+// Drivers can suppress the device to transfer asynchronous transactions by
+// clear these bit flags.
+//
+// Actually, the register is write-only and includes the other settings such as
+// input attenuation. This driver allocates for the first option
+// (0x'....'....'0000'0000) and expects userspace application to configure the
+// register for it.
+static void latter_handle_midi_msg(struct snd_ff *ff, unsigned int offset,
+ __le32 *buf, size_t length)
+{
+ u32 data = le32_to_cpu(*buf);
+ unsigned int index = (data & 0x000000f0) >> 4;
+ u8 byte[3];
+ struct snd_rawmidi_substream *substream;
+ unsigned int len;
+
+ if (index >= ff->spec->midi_in_ports)
+ return;
+
+ switch (data & 0x0000000f) {
+ case 0x00000008:
+ case 0x00000009:
+ case 0x0000000a:
+ case 0x0000000b:
+ case 0x0000000e:
+ len = 3;
+ break;
+ case 0x0000000c:
+ case 0x0000000d:
+ len = 2;
+ break;
+ default:
+ len = data & 0x00000003;
+ if (len == 0)
+ len = 3;
+ break;
+ }
+
+ byte[0] = (data & 0x0000ff00) >> 8;
+ byte[1] = (data & 0x00ff0000) >> 16;
+ byte[2] = (data & 0xff000000) >> 24;
+
+ substream = READ_ONCE(ff->tx_midi_substreams[index]);
+ if (substream)
+ snd_rawmidi_receive(substream, byte, len);
+}
+
+/*
+ * When return minus value, given argument is not MIDI status.
+ * When return 0, given argument is a beginning of system exclusive.
+ * When return the others, given argument is MIDI data.
+ */
+static inline int calculate_message_bytes(u8 status)
+{
+ switch (status) {
+ case 0xf6: /* Tune request. */
+ case 0xf8: /* Timing clock. */
+ case 0xfa: /* Start. */
+ case 0xfb: /* Continue. */
+ case 0xfc: /* Stop. */
+ case 0xfe: /* Active sensing. */
+ case 0xff: /* System reset. */
+ return 1;
+ case 0xf1: /* MIDI time code quarter frame. */
+ case 0xf3: /* Song select. */
+ return 2;
+ case 0xf2: /* Song position pointer. */
+ return 3;
+ case 0xf0: /* Exclusive. */
+ return 0;
+ case 0xf7: /* End of exclusive. */
+ break;
+ case 0xf4: /* Undefined. */
+ case 0xf5: /* Undefined. */
+ case 0xf9: /* Undefined. */
+ case 0xfd: /* Undefined. */
+ break;
+ default:
+ switch (status & 0xf0) {
+ case 0x80: /* Note on. */
+ case 0x90: /* Note off. */
+ case 0xa0: /* Polyphonic key pressure. */
+ case 0xb0: /* Control change and Mode change. */
+ case 0xe0: /* Pitch bend change. */
+ return 3;
+ case 0xc0: /* Program change. */
+ case 0xd0: /* Channel pressure. */
+ return 2;
+ default:
+ break;
+ }
+ break;
+ }
+
+ return -EINVAL;
+}
+
+static int latter_fill_midi_msg(struct snd_ff *ff,
+ struct snd_rawmidi_substream *substream,
+ unsigned int port)
+{
+ u32 data = {0};
+ u8 *buf = (u8 *)&data;
+ int consumed;
+
+ buf[0] = port << 4;
+ consumed = snd_rawmidi_transmit_peek(substream, buf + 1, 3);
+ if (consumed <= 0)
+ return consumed;
+
+ if (!ff->on_sysex[port]) {
+ if (buf[1] != 0xf0) {
+ if (consumed < calculate_message_bytes(buf[1]))
+ return 0;
+ } else {
+ // The beginning of exclusives.
+ ff->on_sysex[port] = true;
+ }
+
+ buf[0] |= consumed;
+ } else {
+ if (buf[1] != 0xf7) {
+ if (buf[2] == 0xf7 || buf[3] == 0xf7) {
+ // Transfer end code at next time.
+ consumed -= 1;
+ }
+
+ buf[0] |= consumed;
+ } else {
+ // The end of exclusives.
+ ff->on_sysex[port] = false;
+ consumed = 1;
+ buf[0] |= 0x0f;
+ }
+ }
+
+ ff->msg_buf[port][0] = cpu_to_le32(data);
+ ff->rx_bytes[port] = consumed;
+
+ return 1;
+}
+
+const struct snd_ff_protocol snd_ff_protocol_latter = {
+ .handle_midi_msg = latter_handle_midi_msg,
+ .fill_midi_msg = latter_fill_midi_msg,
+ .get_clock = latter_get_clock,
+ .switch_fetching_mode = latter_switch_fetching_mode,
+ .allocate_resources = latter_allocate_resources,
+ .begin_session = latter_begin_session,
+ .finish_session = latter_finish_session,
+ .dump_status = latter_dump_status,
+};
diff --git a/sound/firewire/fireface/ff-stream.c b/sound/firewire/fireface/ff-stream.c
index 7888092..e8e6f9f 100644
--- a/sound/firewire/fireface/ff-stream.c
+++ b/sound/firewire/fireface/ff-stream.c
@@ -1,132 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* ff-stream.c - a part of driver for RME Fireface series
*
* Copyright (c) 2015-2017 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "ff.h"
#define CALLBACK_TIMEOUT_MS 200
-static int get_rate_mode(unsigned int rate, unsigned int *mode)
+int snd_ff_stream_get_multiplier_mode(enum cip_sfc sfc,
+ enum snd_ff_stream_mode *mode)
{
- int i;
+ static const enum snd_ff_stream_mode modes[] = {
+ [CIP_SFC_32000] = SND_FF_STREAM_MODE_LOW,
+ [CIP_SFC_44100] = SND_FF_STREAM_MODE_LOW,
+ [CIP_SFC_48000] = SND_FF_STREAM_MODE_LOW,
+ [CIP_SFC_88200] = SND_FF_STREAM_MODE_MID,
+ [CIP_SFC_96000] = SND_FF_STREAM_MODE_MID,
+ [CIP_SFC_176400] = SND_FF_STREAM_MODE_HIGH,
+ [CIP_SFC_192000] = SND_FF_STREAM_MODE_HIGH,
+ };
- for (i = 0; i < CIP_SFC_COUNT; i++) {
- if (amdtp_rate_table[i] == rate)
- break;
- }
-
- if (i == CIP_SFC_COUNT)
+ if (sfc >= CIP_SFC_COUNT)
return -EINVAL;
- *mode = ((int)i - 1) / 2;
+ *mode = modes[sfc];
return 0;
}
-/*
- * Fireface 400 manages isochronous channel number in 3 bit field. Therefore,
- * we can allocate between 0 and 7 channel.
- */
-static int keep_resources(struct snd_ff *ff, unsigned int rate)
-{
- int mode;
- int err;
-
- err = get_rate_mode(rate, &mode);
- if (err < 0)
- return err;
-
- /* Keep resources for in-stream. */
- err = amdtp_ff_set_parameters(&ff->tx_stream, rate,
- ff->spec->pcm_capture_channels[mode]);
- if (err < 0)
- return err;
- ff->tx_resources.channels_mask = 0x00000000000000ffuLL;
- err = fw_iso_resources_allocate(&ff->tx_resources,
- amdtp_stream_get_max_payload(&ff->tx_stream),
- fw_parent_device(ff->unit)->max_speed);
- if (err < 0)
- return err;
-
- /* Keep resources for out-stream. */
- err = amdtp_ff_set_parameters(&ff->rx_stream, rate,
- ff->spec->pcm_playback_channels[mode]);
- if (err < 0)
- return err;
- ff->rx_resources.channels_mask = 0x00000000000000ffuLL;
- err = fw_iso_resources_allocate(&ff->rx_resources,
- amdtp_stream_get_max_payload(&ff->rx_stream),
- fw_parent_device(ff->unit)->max_speed);
- if (err < 0)
- fw_iso_resources_free(&ff->tx_resources);
-
- return err;
-}
-
-static void release_resources(struct snd_ff *ff)
-{
- fw_iso_resources_free(&ff->tx_resources);
- fw_iso_resources_free(&ff->rx_resources);
-}
-
static inline void finish_session(struct snd_ff *ff)
{
ff->spec->protocol->finish_session(ff);
ff->spec->protocol->switch_fetching_mode(ff, false);
}
-static int init_stream(struct snd_ff *ff, enum amdtp_stream_direction dir)
+static int init_stream(struct snd_ff *ff, struct amdtp_stream *s)
{
- int err;
struct fw_iso_resources *resources;
- struct amdtp_stream *stream;
+ enum amdtp_stream_direction dir;
+ int err;
- if (dir == AMDTP_IN_STREAM) {
+ if (s == &ff->tx_stream) {
resources = &ff->tx_resources;
- stream = &ff->tx_stream;
+ dir = AMDTP_IN_STREAM;
} else {
resources = &ff->rx_resources;
- stream = &ff->rx_stream;
+ dir = AMDTP_OUT_STREAM;
}
err = fw_iso_resources_init(resources, ff->unit);
if (err < 0)
return err;
- err = amdtp_ff_init(stream, ff->unit, dir);
+ err = amdtp_ff_init(s, ff->unit, dir);
if (err < 0)
fw_iso_resources_destroy(resources);
return err;
}
-static void destroy_stream(struct snd_ff *ff, enum amdtp_stream_direction dir)
+static void destroy_stream(struct snd_ff *ff, struct amdtp_stream *s)
{
- if (dir == AMDTP_IN_STREAM) {
- amdtp_stream_destroy(&ff->tx_stream);
+ amdtp_stream_destroy(s);
+
+ if (s == &ff->tx_stream)
fw_iso_resources_destroy(&ff->tx_resources);
- } else {
- amdtp_stream_destroy(&ff->rx_stream);
+ else
fw_iso_resources_destroy(&ff->rx_resources);
- }
}
int snd_ff_stream_init_duplex(struct snd_ff *ff)
{
int err;
- err = init_stream(ff, AMDTP_OUT_STREAM);
+ err = init_stream(ff, &ff->rx_stream);
if (err < 0)
- goto end;
+ return err;
- err = init_stream(ff, AMDTP_IN_STREAM);
- if (err < 0)
- destroy_stream(ff, AMDTP_OUT_STREAM);
-end:
+ err = init_stream(ff, &ff->tx_stream);
+ if (err < 0) {
+ destroy_stream(ff, &ff->rx_stream);
+ return err;
+ }
+
+ err = amdtp_domain_init(&ff->domain);
+ if (err < 0) {
+ destroy_stream(ff, &ff->rx_stream);
+ destroy_stream(ff, &ff->tx_stream);
+ }
+
return err;
}
@@ -136,31 +100,72 @@
*/
void snd_ff_stream_destroy_duplex(struct snd_ff *ff)
{
- destroy_stream(ff, AMDTP_IN_STREAM);
- destroy_stream(ff, AMDTP_OUT_STREAM);
+ amdtp_domain_destroy(&ff->domain);
+
+ destroy_stream(ff, &ff->rx_stream);
+ destroy_stream(ff, &ff->tx_stream);
}
-int snd_ff_stream_start_duplex(struct snd_ff *ff, unsigned int rate)
+int snd_ff_stream_reserve_duplex(struct snd_ff *ff, unsigned int rate)
{
unsigned int curr_rate;
enum snd_ff_clock_src src;
int err;
- if (ff->substreams_counter == 0)
- return 0;
-
err = ff->spec->protocol->get_clock(ff, &curr_rate, &src);
if (err < 0)
return err;
- if (curr_rate != rate ||
- amdtp_streaming_error(&ff->tx_stream) ||
- amdtp_streaming_error(&ff->rx_stream)) {
+
+ if (ff->substreams_counter == 0 || curr_rate != rate) {
+ enum snd_ff_stream_mode mode;
+ int i;
+
+ amdtp_domain_stop(&ff->domain);
finish_session(ff);
- amdtp_stream_stop(&ff->tx_stream);
- amdtp_stream_stop(&ff->rx_stream);
+ fw_iso_resources_free(&ff->tx_resources);
+ fw_iso_resources_free(&ff->rx_resources);
- release_resources(ff);
+ for (i = 0; i < CIP_SFC_COUNT; ++i) {
+ if (amdtp_rate_table[i] == rate)
+ break;
+ }
+ if (i >= CIP_SFC_COUNT)
+ return -EINVAL;
+
+ err = snd_ff_stream_get_multiplier_mode(i, &mode);
+ if (err < 0)
+ return err;
+
+ err = amdtp_ff_set_parameters(&ff->tx_stream, rate,
+ ff->spec->pcm_capture_channels[mode]);
+ if (err < 0)
+ return err;
+
+ err = amdtp_ff_set_parameters(&ff->rx_stream, rate,
+ ff->spec->pcm_playback_channels[mode]);
+ if (err < 0)
+ return err;
+
+ err = ff->spec->protocol->allocate_resources(ff, rate);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
+int snd_ff_stream_start_duplex(struct snd_ff *ff, unsigned int rate)
+{
+ int err;
+
+ if (ff->substreams_counter == 0)
+ return 0;
+
+ if (amdtp_streaming_error(&ff->tx_stream) ||
+ amdtp_streaming_error(&ff->rx_stream)) {
+ amdtp_domain_stop(&ff->domain);
+ finish_session(ff);
}
/*
@@ -168,21 +173,29 @@
* packets. Then, the device transfers packets.
*/
if (!amdtp_stream_running(&ff->rx_stream)) {
- err = keep_resources(ff, rate);
- if (err < 0)
- goto error;
+ int spd = fw_parent_device(ff->unit)->max_speed;
err = ff->spec->protocol->begin_session(ff, rate);
if (err < 0)
goto error;
- err = amdtp_stream_start(&ff->rx_stream,
- ff->rx_resources.channel,
- fw_parent_device(ff->unit)->max_speed);
+ err = amdtp_domain_add_stream(&ff->domain, &ff->rx_stream,
+ ff->rx_resources.channel, spd);
+ if (err < 0)
+ goto error;
+
+ err = amdtp_domain_add_stream(&ff->domain, &ff->tx_stream,
+ ff->tx_resources.channel, spd);
+ if (err < 0)
+ goto error;
+
+ err = amdtp_domain_start(&ff->domain);
if (err < 0)
goto error;
if (!amdtp_stream_wait_callback(&ff->rx_stream,
+ CALLBACK_TIMEOUT_MS) ||
+ !amdtp_stream_wait_callback(&ff->tx_stream,
CALLBACK_TIMEOUT_MS)) {
err = -ETIMEDOUT;
goto error;
@@ -193,53 +206,32 @@
goto error;
}
- if (!amdtp_stream_running(&ff->tx_stream)) {
- err = amdtp_stream_start(&ff->tx_stream,
- ff->tx_resources.channel,
- fw_parent_device(ff->unit)->max_speed);
- if (err < 0)
- goto error;
-
- if (!amdtp_stream_wait_callback(&ff->tx_stream,
- CALLBACK_TIMEOUT_MS)) {
- err = -ETIMEDOUT;
- goto error;
- }
- }
-
return 0;
error:
- amdtp_stream_stop(&ff->tx_stream);
- amdtp_stream_stop(&ff->rx_stream);
-
+ amdtp_domain_stop(&ff->domain);
finish_session(ff);
- release_resources(ff);
return err;
}
void snd_ff_stream_stop_duplex(struct snd_ff *ff)
{
- if (ff->substreams_counter > 0)
- return;
+ if (ff->substreams_counter == 0) {
+ amdtp_domain_stop(&ff->domain);
+ finish_session(ff);
- amdtp_stream_stop(&ff->tx_stream);
- amdtp_stream_stop(&ff->rx_stream);
- finish_session(ff);
- release_resources(ff);
+ fw_iso_resources_free(&ff->tx_resources);
+ fw_iso_resources_free(&ff->rx_resources);
+ }
}
void snd_ff_stream_update_duplex(struct snd_ff *ff)
{
- /* The device discontinue to transfer packets. */
+ amdtp_domain_stop(&ff->domain);
+
+ // The device discontinue to transfer packets.
amdtp_stream_pcm_abort(&ff->tx_stream);
- amdtp_stream_stop(&ff->tx_stream);
-
amdtp_stream_pcm_abort(&ff->rx_stream);
- amdtp_stream_stop(&ff->rx_stream);
-
- fw_iso_resources_update(&ff->tx_resources);
- fw_iso_resources_update(&ff->rx_resources);
}
void snd_ff_stream_lock_changed(struct snd_ff *ff)
diff --git a/sound/firewire/fireface/ff-transaction.c b/sound/firewire/fireface/ff-transaction.c
index 332b29f..7f82762 100644
--- a/sound/firewire/fireface/ff-transaction.c
+++ b/sound/firewire/fireface/ff-transaction.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* ff-transaction.c - a part of driver for RME Fireface series
*
* Copyright (c) 2015-2017 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "ff.h"
@@ -51,23 +50,17 @@
finish_transmit_midi_msg(ff, 1, rcode);
}
-static inline void fill_midi_buf(struct snd_ff *ff, unsigned int port,
- unsigned int index, u8 byte)
-{
- ff->msg_buf[port][index] = cpu_to_le32(byte);
-}
-
static void transmit_midi_msg(struct snd_ff *ff, unsigned int port)
{
struct snd_rawmidi_substream *substream =
READ_ONCE(ff->rx_midi_substreams[port]);
- u8 *buf = (u8 *)ff->msg_buf[port];
- int i, len;
+ int quad_count;
struct fw_device *fw_dev = fw_parent_device(ff->unit);
unsigned long long addr;
int generation;
fw_transaction_callback_t callback;
+ int tcode;
if (substream == NULL || snd_rawmidi_transmit_empty(substream))
return;
@@ -81,26 +74,26 @@
return;
}
- len = snd_rawmidi_transmit_peek(substream, buf,
- SND_FF_MAXIMIM_MIDI_QUADS);
- if (len <= 0)
+ quad_count = ff->spec->protocol->fill_midi_msg(ff, substream, port);
+ if (quad_count <= 0)
return;
- for (i = len - 1; i >= 0; i--)
- fill_midi_buf(ff, port, i, buf[i]);
-
if (port == 0) {
- addr = ff->spec->protocol->midi_rx_port_0_reg;
+ addr = ff->spec->midi_rx_addrs[0];
callback = finish_transmit_midi0_msg;
} else {
- addr = ff->spec->protocol->midi_rx_port_1_reg;
+ addr = ff->spec->midi_rx_addrs[1];
callback = finish_transmit_midi1_msg;
}
/* Set interval to next transaction. */
ff->next_ktime[port] = ktime_add_ns(ktime_get(),
- len * 8 * NSEC_PER_SEC / 31250);
- ff->rx_bytes[port] = len;
+ ff->rx_bytes[port] * 8 * NSEC_PER_SEC / 31250);
+
+ if (quad_count == 1)
+ tcode = TCODE_WRITE_QUADLET_REQUEST;
+ else
+ tcode = TCODE_WRITE_BLOCK_REQUEST;
/*
* In Linux FireWire core, when generation is updated with memory
@@ -112,10 +105,9 @@
*/
generation = fw_dev->generation;
smp_rmb();
- fw_send_request(fw_dev->card, &ff->transactions[port],
- TCODE_WRITE_BLOCK_REQUEST,
+ fw_send_request(fw_dev->card, &ff->transactions[port], tcode,
fw_dev->node_id, generation, fw_dev->max_speed,
- addr, &ff->msg_buf[port], len * 4,
+ addr, &ff->msg_buf[port], quad_count * 4,
callback, &ff->transactions[port]);
}
@@ -140,42 +132,12 @@
{
struct snd_ff *ff = callback_data;
__le32 *buf = data;
- u32 quad;
- u8 byte;
- unsigned int index;
- struct snd_rawmidi_substream *substream;
- int i;
fw_send_response(card, request, RCODE_COMPLETE);
- for (i = 0; i < length / 4; i++) {
- quad = le32_to_cpu(buf[i]);
-
- /* Message in first port. */
- /*
- * This value may represent the index of this unit when the same
- * units are on the same IEEE 1394 bus. This driver doesn't use
- * it.
- */
- index = (quad >> 8) & 0xff;
- if (index > 0) {
- substream = READ_ONCE(ff->tx_midi_substreams[0]);
- if (substream != NULL) {
- byte = quad & 0xff;
- snd_rawmidi_receive(substream, &byte, 1);
- }
- }
-
- /* Message in second port. */
- index = (quad >> 24) & 0xff;
- if (index > 0) {
- substream = READ_ONCE(ff->tx_midi_substreams[1]);
- if (substream != NULL) {
- byte = (quad >> 16) & 0xff;
- snd_rawmidi_receive(substream, &byte, 1);
- }
- }
- }
+ offset -= ff->async_handler.offset;
+ ff->spec->protocol->handle_midi_msg(ff, (unsigned int)offset, buf,
+ length);
}
static int allocate_own_address(struct snd_ff *ff, int i)
@@ -183,7 +145,7 @@
struct fw_address_region midi_msg_region;
int err;
- ff->async_handler.length = SND_FF_MAXIMIM_MIDI_QUADS * 4;
+ ff->async_handler.length = ff->spec->midi_addr_range;
ff->async_handler.address_callback = handle_midi_msg;
ff->async_handler.callback_data = ff;
@@ -202,38 +164,13 @@
return err;
}
-/*
- * The configuration to start asynchronous transactions for MIDI messages is in
- * 0x'0000'8010'051c. This register includes the other options, thus this driver
- * doesn't touch it and leaves the decision to userspace. The userspace MUST add
- * 0x04000000 to write transactions to the register to receive any MIDI
- * messages.
- *
- * Here, I just describe MIDI-related offsets of the register, in little-endian
- * order.
- *
- * Controllers are allowed to register higher 4 bytes of address to receive
- * the transactions. The register is 0x'0000'8010'03f4. On the other hand, the
- * controllers are not allowed to register lower 4 bytes of the address. They
- * are forced to select from 4 options by writing corresponding bits to
- * 0x'0000'8010'051c.
- *
- * The 3rd-6th bits in MSB of this register are used to indicate lower 4 bytes
- * of address to which the device transferrs the transactions.
- * - 6th: 0x'....'....'0000'0180
- * - 5th: 0x'....'....'0000'0100
- * - 4th: 0x'....'....'0000'0080
- * - 3rd: 0x'....'....'0000'0000
- *
- * This driver configure 0x'....'....'0000'0000 for units to receive MIDI
- * messages. 3rd bit of the register should be configured, however this driver
- * deligates this task to user space applications due to a restriction that
- * this register is write-only and the other bits have own effects.
- *
- * The 1st and 2nd bits in LSB of this register are used to cancel transferring
- * asynchronous transactions. These two bits have the same effect.
- * - 1st/2nd: cancel transferring
- */
+// Controllers are allowed to register higher 4 bytes of destination address to
+// receive asynchronous transactions for MIDI messages, while the way to
+// register lower 4 bytes of address is different depending on protocols. For
+// details, please refer to comments in protocol implementations.
+//
+// This driver expects userspace applications to configure registers for the
+// lower address because in most cases such registers has the other settings.
int snd_ff_transaction_reregister(struct snd_ff *ff)
{
struct fw_card *fw_card = fw_parent_device(ff->unit)->card;
@@ -247,7 +184,7 @@
addr = (fw_card->node_id << 16) | (ff->async_handler.offset >> 32);
reg = cpu_to_le32(addr);
return snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
- ff->spec->protocol->midi_high_addr_reg,
+ ff->spec->midi_high_addr,
®, sizeof(reg), 0);
}
@@ -288,7 +225,7 @@
/* Release higher 4 bytes of address. */
reg = cpu_to_le32(0x00000000);
snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST,
- ff->spec->protocol->midi_high_addr_reg,
+ ff->spec->midi_high_addr,
®, sizeof(reg), 0);
fw_core_remove_address_handler(&ff->async_handler);
diff --git a/sound/firewire/fireface/ff.c b/sound/firewire/fireface/ff.c
index 4974bc7..f5a0165 100644
--- a/sound/firewire/fireface/ff.c
+++ b/sound/firewire/fireface/ff.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* ff.c - a part of driver for RME Fireface series
*
* Copyright (c) 2015-2017 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "ff.h"
@@ -27,20 +26,12 @@
dev_name(&ff->unit->device), 100 << fw_dev->max_speed);
}
-static void ff_free(struct snd_ff *ff)
-{
- snd_ff_stream_destroy_duplex(ff);
- snd_ff_transaction_unregister(ff);
-
- fw_unit_put(ff->unit);
-
- mutex_destroy(&ff->mutex);
- kfree(ff);
-}
-
static void ff_card_free(struct snd_card *card)
{
- ff_free(card->private_data);
+ struct snd_ff *ff = card->private_data;
+
+ snd_ff_stream_destroy_duplex(ff);
+ snd_ff_transaction_unregister(ff);
}
static void do_registration(struct work_struct *work)
@@ -55,6 +46,8 @@
&ff->card);
if (err < 0)
return;
+ ff->card->private_free = ff_card_free;
+ ff->card->private_data = ff;
err = snd_ff_transaction_register(ff);
if (err < 0)
@@ -84,14 +77,10 @@
if (err < 0)
goto error;
- ff->card->private_free = ff_card_free;
- ff->card->private_data = ff;
ff->registered = true;
return;
error:
- snd_ff_transaction_unregister(ff);
- snd_ff_stream_destroy_duplex(ff);
snd_card_free(ff->card);
dev_info(&ff->unit->device,
"Sound card registration failed: %d\n", err);
@@ -102,11 +91,9 @@
{
struct snd_ff *ff;
- ff = kzalloc(sizeof(struct snd_ff), GFP_KERNEL);
- if (ff == NULL)
+ ff = devm_kzalloc(&unit->device, sizeof(struct snd_ff), GFP_KERNEL);
+ if (!ff)
return -ENOMEM;
-
- /* initialize myself */
ff->unit = fw_unit_get(unit);
dev_set_drvdata(&unit->device, ff);
@@ -149,14 +136,26 @@
cancel_work_sync(&ff->dwork.work);
if (ff->registered) {
- /* No need to wait for releasing card object in this context. */
- snd_card_free_when_closed(ff->card);
- } else {
- /* Don't forget this case. */
- ff_free(ff);
+ // Block till all of ALSA character devices are released.
+ snd_card_free(ff->card);
}
+
+ mutex_destroy(&ff->mutex);
+ fw_unit_put(ff->unit);
}
+static const struct snd_ff_spec spec_ff800 = {
+ .name = "Fireface800",
+ .pcm_capture_channels = {28, 20, 12},
+ .pcm_playback_channels = {28, 20, 12},
+ .midi_in_ports = 1,
+ .midi_out_ports = 1,
+ .protocol = &snd_ff_protocol_ff800,
+ .midi_high_addr = 0x000200000320ull,
+ .midi_addr_range = 12,
+ .midi_rx_addrs = {0x000080180000ull, 0},
+};
+
static const struct snd_ff_spec spec_ff400 = {
.name = "Fireface400",
.pcm_capture_channels = {18, 14, 10},
@@ -164,9 +163,36 @@
.midi_in_ports = 2,
.midi_out_ports = 2,
.protocol = &snd_ff_protocol_ff400,
+ .midi_high_addr = 0x0000801003f4ull,
+ .midi_addr_range = SND_FF_MAXIMIM_MIDI_QUADS * 4,
+ .midi_rx_addrs = {0x000080180000ull, 0x000080190000ull},
+};
+
+static const struct snd_ff_spec spec_ucx = {
+ .name = "FirefaceUCX",
+ .pcm_capture_channels = {18, 14, 12},
+ .pcm_playback_channels = {18, 14, 12},
+ .midi_in_ports = 2,
+ .midi_out_ports = 2,
+ .protocol = &snd_ff_protocol_latter,
+ .midi_high_addr = 0xffff00000034ull,
+ .midi_addr_range = 0x80,
+ .midi_rx_addrs = {0xffff00000030ull, 0xffff00000030ull},
};
static const struct ieee1394_device_id snd_ff_id_table[] = {
+ /* Fireface 800 */
+ {
+ .match_flags = IEEE1394_MATCH_VENDOR_ID |
+ IEEE1394_MATCH_SPECIFIER_ID |
+ IEEE1394_MATCH_VERSION |
+ IEEE1394_MATCH_MODEL_ID,
+ .vendor_id = OUI_RME,
+ .specifier_id = OUI_RME,
+ .version = 0x000001,
+ .model_id = 0x101800,
+ .driver_data = (kernel_ulong_t)&spec_ff800,
+ },
/* Fireface 400 */
{
.match_flags = IEEE1394_MATCH_VENDOR_ID |
@@ -174,11 +200,23 @@
IEEE1394_MATCH_VERSION |
IEEE1394_MATCH_MODEL_ID,
.vendor_id = OUI_RME,
- .specifier_id = 0x000a35,
+ .specifier_id = OUI_RME,
.version = 0x000002,
.model_id = 0x101800,
.driver_data = (kernel_ulong_t)&spec_ff400,
},
+ // Fireface UCX.
+ {
+ .match_flags = IEEE1394_MATCH_VENDOR_ID |
+ IEEE1394_MATCH_SPECIFIER_ID |
+ IEEE1394_MATCH_VERSION |
+ IEEE1394_MATCH_MODEL_ID,
+ .vendor_id = OUI_RME,
+ .specifier_id = OUI_RME,
+ .version = 0x000004,
+ .model_id = 0x101800,
+ .driver_data = (kernel_ulong_t)&spec_ucx,
+ },
{}
};
MODULE_DEVICE_TABLE(ieee1394, snd_ff_id_table);
diff --git a/sound/firewire/fireface/ff.h b/sound/firewire/fireface/ff.h
index 64df44b..b4c22ca 100644
--- a/sound/firewire/fireface/ff.h
+++ b/sound/firewire/fireface/ff.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* ff.h - a part of driver for RME Fireface series
*
* Copyright (c) 2015-2017 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#ifndef SOUND_FIREFACE_H_INCLUDED
@@ -31,23 +30,31 @@
#include "../amdtp-stream.h"
#include "../iso-resources.h"
-#define SND_FF_STREAM_MODES 3
-
#define SND_FF_MAXIMIM_MIDI_QUADS 9
#define SND_FF_IN_MIDI_PORTS 2
#define SND_FF_OUT_MIDI_PORTS 2
+enum snd_ff_stream_mode {
+ SND_FF_STREAM_MODE_LOW = 0,
+ SND_FF_STREAM_MODE_MID,
+ SND_FF_STREAM_MODE_HIGH,
+ SND_FF_STREAM_MODE_COUNT,
+};
+
struct snd_ff_protocol;
struct snd_ff_spec {
const char *const name;
- const unsigned int pcm_capture_channels[SND_FF_STREAM_MODES];
- const unsigned int pcm_playback_channels[SND_FF_STREAM_MODES];
+ const unsigned int pcm_capture_channels[SND_FF_STREAM_MODE_COUNT];
+ const unsigned int pcm_playback_channels[SND_FF_STREAM_MODE_COUNT];
unsigned int midi_in_ports;
unsigned int midi_out_ports;
const struct snd_ff_protocol *protocol;
+ u64 midi_high_addr;
+ u8 midi_addr_range;
+ u64 midi_rx_addrs[SND_FF_OUT_MIDI_PORTS];
};
struct snd_ff {
@@ -67,7 +74,7 @@
/* TO handle MIDI rx. */
struct snd_rawmidi_substream *rx_midi_substreams[SND_FF_OUT_MIDI_PORTS];
- u8 running_status[SND_FF_OUT_MIDI_PORTS];
+ bool on_sysex[SND_FF_OUT_MIDI_PORTS];
__le32 msg_buf[SND_FF_OUT_MIDI_PORTS][SND_FF_MAXIMIM_MIDI_QUADS];
struct work_struct rx_midi_work[SND_FF_OUT_MIDI_PORTS];
struct fw_transaction transactions[SND_FF_OUT_MIDI_PORTS];
@@ -84,35 +91,38 @@
int dev_lock_count;
bool dev_lock_changed;
wait_queue_head_t hwdep_wait;
+
+ struct amdtp_domain domain;
};
enum snd_ff_clock_src {
SND_FF_CLOCK_SRC_INTERNAL,
SND_FF_CLOCK_SRC_SPDIF,
- SND_FF_CLOCK_SRC_ADAT,
+ SND_FF_CLOCK_SRC_ADAT1,
+ SND_FF_CLOCK_SRC_ADAT2,
SND_FF_CLOCK_SRC_WORD,
SND_FF_CLOCK_SRC_LTC,
- /* TODO: perhaps ADAT2 and TCO exists. */
+ /* TODO: perhaps TCO exists. */
};
struct snd_ff_protocol {
+ void (*handle_midi_msg)(struct snd_ff *ff, unsigned int offset,
+ __le32 *buf, size_t length);
+ int (*fill_midi_msg)(struct snd_ff *ff,
+ struct snd_rawmidi_substream *substream,
+ unsigned int port);
int (*get_clock)(struct snd_ff *ff, unsigned int *rate,
enum snd_ff_clock_src *src);
+ int (*switch_fetching_mode)(struct snd_ff *ff, bool enable);
+ int (*allocate_resources)(struct snd_ff *ff, unsigned int rate);
int (*begin_session)(struct snd_ff *ff, unsigned int rate);
void (*finish_session)(struct snd_ff *ff);
- int (*switch_fetching_mode)(struct snd_ff *ff, bool enable);
-
- void (*dump_sync_status)(struct snd_ff *ff,
- struct snd_info_buffer *buffer);
- void (*dump_clock_config)(struct snd_ff *ff,
- struct snd_info_buffer *buffer);
-
- u64 midi_high_addr_reg;
- u64 midi_rx_port_0_reg;
- u64 midi_rx_port_1_reg;
+ void (*dump_status)(struct snd_ff *ff, struct snd_info_buffer *buffer);
};
+extern const struct snd_ff_protocol snd_ff_protocol_ff800;
extern const struct snd_ff_protocol snd_ff_protocol_ff400;
+extern const struct snd_ff_protocol snd_ff_protocol_latter;
int snd_ff_transaction_register(struct snd_ff *ff);
int snd_ff_transaction_reregister(struct snd_ff *ff);
@@ -125,8 +135,11 @@
int amdtp_ff_init(struct amdtp_stream *s, struct fw_unit *unit,
enum amdtp_stream_direction dir);
+int snd_ff_stream_get_multiplier_mode(enum cip_sfc sfc,
+ enum snd_ff_stream_mode *mode);
int snd_ff_stream_init_duplex(struct snd_ff *ff);
void snd_ff_stream_destroy_duplex(struct snd_ff *ff);
+int snd_ff_stream_reserve_duplex(struct snd_ff *ff, unsigned int rate);
int snd_ff_stream_start_duplex(struct snd_ff *ff, unsigned int rate);
void snd_ff_stream_stop_duplex(struct snd_ff *ff);
void snd_ff_stream_update_duplex(struct snd_ff *ff);
@@ -136,6 +149,7 @@
void snd_ff_stream_lock_release(struct snd_ff *ff);
void snd_ff_proc_init(struct snd_ff *ff);
+const char *snd_ff_proc_get_clk_label(enum snd_ff_clock_src src);
int snd_ff_create_midi_devices(struct snd_ff *ff);
diff --git a/sound/firewire/fireworks/Makefile b/sound/firewire/fireworks/Makefile
index 15ef7f7..3386121 100644
--- a/sound/firewire/fireworks/Makefile
+++ b/sound/firewire/fireworks/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
snd-fireworks-objs := fireworks_transaction.o fireworks_command.o \
fireworks_stream.o fireworks_proc.o fireworks_midi.o \
fireworks_pcm.o fireworks_hwdep.o fireworks.o
diff --git a/sound/firewire/fireworks/fireworks.c b/sound/firewire/fireworks/fireworks.c
index f2d0733..134fc9e 100644
--- a/sound/firewire/fireworks/fireworks.c
+++ b/sound/firewire/fireworks/fireworks.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* fireworks.c - a part of driver for Fireworks based devices
*
* Copyright (c) 2009-2010 Clemens Ladisch
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
/*
@@ -184,36 +183,17 @@
return err;
}
-static void efw_free(struct snd_efw *efw)
-{
- snd_efw_stream_destroy_duplex(efw);
- snd_efw_transaction_remove_instance(efw);
- fw_unit_put(efw->unit);
-
- kfree(efw->resp_buf);
-
- mutex_destroy(&efw->mutex);
- kfree(efw);
-}
-
-/*
- * This module releases the FireWire unit data after all ALSA character devices
- * are released by applications. This is for releasing stream data or finishing
- * transactions safely. Thus at returning from .remove(), this module still keep
- * references for the unit.
- */
static void
efw_card_free(struct snd_card *card)
{
struct snd_efw *efw = card->private_data;
- if (efw->card_index >= 0) {
- mutex_lock(&devices_mutex);
- clear_bit(efw->card_index, devices_used);
- mutex_unlock(&devices_mutex);
- }
+ mutex_lock(&devices_mutex);
+ clear_bit(efw->card_index, devices_used);
+ mutex_unlock(&devices_mutex);
- efw_free(card->private_data);
+ snd_efw_stream_destroy_duplex(efw);
+ snd_efw_transaction_remove_instance(efw);
}
static void
@@ -226,9 +206,8 @@
if (efw->registered)
return;
- mutex_lock(&devices_mutex);
-
/* check registered cards */
+ mutex_lock(&devices_mutex);
for (card_index = 0; card_index < SNDRV_CARDS; ++card_index) {
if (!test_bit(card_index, devices_used) && enable[card_index])
break;
@@ -244,12 +223,18 @@
mutex_unlock(&devices_mutex);
return;
}
+ set_bit(card_index, devices_used);
+ mutex_unlock(&devices_mutex);
+
+ efw->card->private_free = efw_card_free;
+ efw->card->private_data = efw;
/* prepare response buffer */
snd_efw_resp_buf_size = clamp(snd_efw_resp_buf_size,
SND_EFW_RESPONSE_MAXIMUM_BYTES, 4096U);
- efw->resp_buf = kzalloc(snd_efw_resp_buf_size, GFP_KERNEL);
- if (efw->resp_buf == NULL) {
+ efw->resp_buf = devm_kzalloc(&efw->card->card_dev,
+ snd_efw_resp_buf_size, GFP_KERNEL);
+ if (!efw->resp_buf) {
err = -ENOMEM;
goto error;
}
@@ -284,25 +269,11 @@
if (err < 0)
goto error;
- set_bit(card_index, devices_used);
- mutex_unlock(&devices_mutex);
-
- /*
- * After registered, efw instance can be released corresponding to
- * releasing the sound card instance.
- */
- efw->card->private_free = efw_card_free;
- efw->card->private_data = efw;
efw->registered = true;
return;
error:
- mutex_unlock(&devices_mutex);
- snd_efw_transaction_remove_instance(efw);
- snd_efw_stream_destroy_duplex(efw);
snd_card_free(efw->card);
- kfree(efw->resp_buf);
- efw->resp_buf = NULL;
dev_info(&efw->unit->device,
"Sound card registration failed: %d\n", err);
}
@@ -312,10 +283,9 @@
{
struct snd_efw *efw;
- efw = kzalloc(sizeof(struct snd_efw), GFP_KERNEL);
+ efw = devm_kzalloc(&unit->device, sizeof(struct snd_efw), GFP_KERNEL);
if (efw == NULL)
return -ENOMEM;
-
efw->unit = fw_unit_get(unit);
dev_set_drvdata(&unit->device, efw);
@@ -363,12 +333,12 @@
cancel_delayed_work_sync(&efw->dwork);
if (efw->registered) {
- /* No need to wait for releasing card object in this context. */
- snd_card_free_when_closed(efw->card);
- } else {
- /* Don't forget this case. */
- efw_free(efw);
+ // Block till all of ALSA character devices are released.
+ snd_card_free(efw->card);
}
+
+ mutex_destroy(&efw->mutex);
+ fw_unit_put(efw->unit);
}
static const struct ieee1394_device_id efw_id_table[] = {
diff --git a/sound/firewire/fireworks/fireworks.h b/sound/firewire/fireworks/fireworks.h
index 9b19c7f..4cda297 100644
--- a/sound/firewire/fireworks/fireworks.h
+++ b/sound/firewire/fireworks/fireworks.h
@@ -1,10 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* fireworks.h - a part of driver for Fireworks based devices
*
* Copyright (c) 2009-2010 Clemens Ladisch
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#ifndef SOUND_FIREWORKS_H_INCLUDED
#define SOUND_FIREWORKS_H_INCLUDED
@@ -89,8 +88,7 @@
struct amdtp_stream rx_stream;
struct cmp_connection out_conn;
struct cmp_connection in_conn;
- unsigned int capture_substreams;
- unsigned int playback_substreams;
+ unsigned int substreams_counter;
/* hardware metering parameters */
unsigned int phys_out;
@@ -109,6 +107,8 @@
u8 *resp_buf;
u8 *pull_ptr;
u8 *push_ptr;
+
+ struct amdtp_domain domain;
};
int snd_efw_transaction_cmd(struct fw_unit *unit,
@@ -207,7 +207,8 @@
int snd_efw_command_set_sampling_rate(struct snd_efw *efw, unsigned int rate);
int snd_efw_stream_init_duplex(struct snd_efw *efw);
-int snd_efw_stream_start_duplex(struct snd_efw *efw, unsigned int rate);
+int snd_efw_stream_reserve_duplex(struct snd_efw *efw, unsigned int rate);
+int snd_efw_stream_start_duplex(struct snd_efw *efw);
void snd_efw_stream_stop_duplex(struct snd_efw *efw);
void snd_efw_stream_update_duplex(struct snd_efw *efw);
void snd_efw_stream_destroy_duplex(struct snd_efw *efw);
diff --git a/sound/firewire/fireworks/fireworks_command.c b/sound/firewire/fireworks/fireworks_command.c
index 94bab04..7e255fc 100644
--- a/sound/firewire/fireworks/fireworks_command.c
+++ b/sound/firewire/fireworks/fireworks_command.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* fireworks_command.c - a part of driver for Fireworks based devices
*
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "./fireworks.h"
diff --git a/sound/firewire/fireworks/fireworks_hwdep.c b/sound/firewire/fireworks/fireworks_hwdep.c
index 5cac26a..e93eb46 100644
--- a/sound/firewire/fireworks/fireworks_hwdep.c
+++ b/sound/firewire/fireworks/fireworks_hwdep.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* fireworks_hwdep.c - a part of driver for Fireworks based devices
*
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
/*
diff --git a/sound/firewire/fireworks/fireworks_midi.c b/sound/firewire/fireworks/fireworks_midi.c
index f5da2cd..a9f4a96 100644
--- a/sound/firewire/fireworks/fireworks_midi.c
+++ b/sound/firewire/fireworks/fireworks_midi.c
@@ -1,14 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* fireworks_midi.c - a part of driver for Fireworks based devices
*
* Copyright (c) 2009-2010 Clemens Ladisch
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "fireworks.h"
-static int midi_capture_open(struct snd_rawmidi_substream *substream)
+static int midi_open(struct snd_rawmidi_substream *substream)
{
struct snd_efw *efw = substream->rmidi->private_data;
int err;
@@ -18,28 +17,13 @@
goto end;
mutex_lock(&efw->mutex);
- efw->capture_substreams++;
- err = snd_efw_stream_start_duplex(efw, 0);
- mutex_unlock(&efw->mutex);
- if (err < 0)
- snd_efw_stream_lock_release(efw);
-
-end:
- return err;
-}
-
-static int midi_playback_open(struct snd_rawmidi_substream *substream)
-{
- struct snd_efw *efw = substream->rmidi->private_data;
- int err;
-
- err = snd_efw_stream_lock_try(efw);
- if (err < 0)
- goto end;
-
- mutex_lock(&efw->mutex);
- efw->playback_substreams++;
- err = snd_efw_stream_start_duplex(efw, 0);
+ err = snd_efw_stream_reserve_duplex(efw, 0);
+ if (err >= 0) {
+ ++efw->substreams_counter;
+ err = snd_efw_stream_start_duplex(efw);
+ if (err < 0)
+ --efw->substreams_counter;
+ }
mutex_unlock(&efw->mutex);
if (err < 0)
snd_efw_stream_lock_release(efw);
@@ -47,25 +31,12 @@
return err;
}
-static int midi_capture_close(struct snd_rawmidi_substream *substream)
+static int midi_close(struct snd_rawmidi_substream *substream)
{
struct snd_efw *efw = substream->rmidi->private_data;
mutex_lock(&efw->mutex);
- efw->capture_substreams--;
- snd_efw_stream_stop_duplex(efw);
- mutex_unlock(&efw->mutex);
-
- snd_efw_stream_lock_release(efw);
- return 0;
-}
-
-static int midi_playback_close(struct snd_rawmidi_substream *substream)
-{
- struct snd_efw *efw = substream->rmidi->private_data;
-
- mutex_lock(&efw->mutex);
- efw->playback_substreams--;
+ --efw->substreams_counter;
snd_efw_stream_stop_duplex(efw);
mutex_unlock(&efw->mutex);
@@ -121,13 +92,13 @@
int snd_efw_create_midi_devices(struct snd_efw *efw)
{
static const struct snd_rawmidi_ops capture_ops = {
- .open = midi_capture_open,
- .close = midi_capture_close,
+ .open = midi_open,
+ .close = midi_close,
.trigger = midi_capture_trigger,
};
static const struct snd_rawmidi_ops playback_ops = {
- .open = midi_playback_open,
- .close = midi_playback_close,
+ .open = midi_open,
+ .close = midi_close,
.trigger = midi_playback_trigger,
};
struct snd_rawmidi *rmidi;
diff --git a/sound/firewire/fireworks/fireworks_pcm.c b/sound/firewire/fireworks/fireworks_pcm.c
index aed566d..a7025dc 100644
--- a/sound/firewire/fireworks/fireworks_pcm.c
+++ b/sound/firewire/fireworks/fireworks_pcm.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* fireworks_pcm.c - a part of driver for Fireworks based devices
*
* Copyright (c) 2009-2010 Clemens Ladisch
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "./fireworks.h"
@@ -219,7 +218,7 @@
return 0;
}
-static int pcm_capture_hw_params(struct snd_pcm_substream *substream,
+static int pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
struct snd_efw *efw = substream->private_data;
@@ -231,58 +230,30 @@
return err;
if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
+ unsigned int rate = params_rate(hw_params);
+
mutex_lock(&efw->mutex);
- efw->capture_substreams++;
+ err = snd_efw_stream_reserve_duplex(efw, rate);
+ if (err >= 0)
+ ++efw->substreams_counter;
mutex_unlock(&efw->mutex);
}
- return 0;
-}
-static int pcm_playback_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
-{
- struct snd_efw *efw = substream->private_data;
- int err;
-
- err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
- params_buffer_bytes(hw_params));
- if (err < 0)
- return err;
-
- if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
- mutex_lock(&efw->mutex);
- efw->playback_substreams++;
- mutex_unlock(&efw->mutex);
- }
-
- return 0;
+ return err;
}
-static int pcm_capture_hw_free(struct snd_pcm_substream *substream)
+static int pcm_hw_free(struct snd_pcm_substream *substream)
{
struct snd_efw *efw = substream->private_data;
- if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) {
- mutex_lock(&efw->mutex);
- efw->capture_substreams--;
- mutex_unlock(&efw->mutex);
- }
+ mutex_lock(&efw->mutex);
+
+ if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN)
+ --efw->substreams_counter;
snd_efw_stream_stop_duplex(efw);
- return snd_pcm_lib_free_vmalloc_buffer(substream);
-}
-static int pcm_playback_hw_free(struct snd_pcm_substream *substream)
-{
- struct snd_efw *efw = substream->private_data;
-
- if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) {
- mutex_lock(&efw->mutex);
- efw->playback_substreams--;
- mutex_unlock(&efw->mutex);
- }
-
- snd_efw_stream_stop_duplex(efw);
+ mutex_unlock(&efw->mutex);
return snd_pcm_lib_free_vmalloc_buffer(substream);
}
@@ -290,10 +261,9 @@
static int pcm_capture_prepare(struct snd_pcm_substream *substream)
{
struct snd_efw *efw = substream->private_data;
- struct snd_pcm_runtime *runtime = substream->runtime;
int err;
- err = snd_efw_stream_start_duplex(efw, runtime->rate);
+ err = snd_efw_stream_start_duplex(efw);
if (err >= 0)
amdtp_stream_pcm_prepare(&efw->tx_stream);
@@ -302,10 +272,9 @@
static int pcm_playback_prepare(struct snd_pcm_substream *substream)
{
struct snd_efw *efw = substream->private_data;
- struct snd_pcm_runtime *runtime = substream->runtime;
int err;
- err = snd_efw_stream_start_duplex(efw, runtime->rate);
+ err = snd_efw_stream_start_duplex(efw);
if (err >= 0)
amdtp_stream_pcm_prepare(&efw->rx_stream);
@@ -378,8 +347,8 @@
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,
- .hw_params = pcm_capture_hw_params,
- .hw_free = pcm_capture_hw_free,
+ .hw_params = pcm_hw_params,
+ .hw_free = pcm_hw_free,
.prepare = pcm_capture_prepare,
.trigger = pcm_capture_trigger,
.pointer = pcm_capture_pointer,
@@ -390,8 +359,8 @@
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,
- .hw_params = pcm_playback_hw_params,
- .hw_free = pcm_playback_hw_free,
+ .hw_params = pcm_hw_params,
+ .hw_free = pcm_hw_free,
.prepare = pcm_playback_prepare,
.trigger = pcm_playback_trigger,
.pointer = pcm_playback_pointer,
diff --git a/sound/firewire/fireworks/fireworks_proc.c b/sound/firewire/fireworks/fireworks_proc.c
index 779ecec..1228856 100644
--- a/sound/firewire/fireworks/fireworks_proc.c
+++ b/sound/firewire/fireworks/fireworks_proc.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* fireworks_proc.c - a part of driver for Fireworks based devices
*
* Copyright (c) 2009-2010 Clemens Ladisch
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "./fireworks.h"
@@ -199,12 +198,8 @@
struct snd_info_entry *entry;
entry = snd_info_create_card_entry(efw->card, name, root);
- if (entry == NULL)
- return;
-
- snd_info_set_text_ops(entry, efw, op);
- if (snd_info_register(entry) < 0)
- snd_info_free_entry(entry);
+ if (entry)
+ snd_info_set_text_ops(entry, efw, op);
}
void snd_efw_proc_init(struct snd_efw *efw)
@@ -220,10 +215,6 @@
if (root == NULL)
return;
root->mode = S_IFDIR | 0555;
- if (snd_info_register(root) < 0) {
- snd_info_free_entry(root);
- return;
- }
add_node(efw, root, "clock", proc_read_clock);
add_node(efw, root, "firmware", proc_read_hwinfo);
diff --git a/sound/firewire/fireworks/fireworks_stream.c b/sound/firewire/fireworks/fireworks_stream.c
index 827161b..f2de304 100644
--- a/sound/firewire/fireworks/fireworks_stream.c
+++ b/sound/firewire/fireworks/fireworks_stream.c
@@ -1,16 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* fireworks_stream.c - a part of driver for Fireworks based devices
*
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "./fireworks.h"
#define CALLBACK_TIMEOUT 100
-static int
-init_stream(struct snd_efw *efw, struct amdtp_stream *stream)
+static int init_stream(struct snd_efw *efw, struct amdtp_stream *stream)
{
struct cmp_connection *conn;
enum cmp_direction c_dir;
@@ -29,95 +27,77 @@
err = cmp_connection_init(conn, efw->unit, c_dir, 0);
if (err < 0)
- goto end;
+ return err;
err = amdtp_am824_init(stream, efw->unit, s_dir, CIP_BLOCKING);
if (err < 0) {
amdtp_stream_destroy(stream);
cmp_connection_destroy(conn);
+ return err;
}
-end:
+
+ if (stream == &efw->tx_stream) {
+ // Fireworks transmits NODATA packets with TAG0.
+ efw->tx_stream.flags |= CIP_EMPTY_WITH_TAG0;
+ // Fireworks has its own meaning for dbc.
+ efw->tx_stream.flags |= CIP_DBC_IS_END_EVENT;
+ // Fireworks reset dbc at bus reset.
+ efw->tx_stream.flags |= CIP_SKIP_DBC_ZERO_CHECK;
+ // But Recent firmwares starts packets with non-zero dbc.
+ // Driver version 5.7.6 installs firmware version 5.7.3.
+ if (efw->is_fireworks3 &&
+ (efw->firmware_version == 0x5070000 ||
+ efw->firmware_version == 0x5070300 ||
+ efw->firmware_version == 0x5080000))
+ efw->tx_stream.flags |= CIP_UNALIGHED_DBC;
+ // AudioFire9 always reports wrong dbs.
+ if (efw->is_af9)
+ efw->tx_stream.flags |= CIP_WRONG_DBS;
+ // Firmware version 5.5 reports fixed interval for dbc.
+ if (efw->firmware_version == 0x5050000)
+ efw->tx_stream.ctx_data.tx.dbc_interval = 8;
+ }
+
return err;
}
-static void
-stop_stream(struct snd_efw *efw, struct amdtp_stream *stream)
-{
- amdtp_stream_pcm_abort(stream);
- amdtp_stream_stop(stream);
-
- if (stream == &efw->tx_stream)
- cmp_connection_break(&efw->out_conn);
- else
- cmp_connection_break(&efw->in_conn);
-}
-
-static int
-start_stream(struct snd_efw *efw, struct amdtp_stream *stream,
- unsigned int sampling_rate)
+static int start_stream(struct snd_efw *efw, struct amdtp_stream *stream,
+ unsigned int rate)
{
struct cmp_connection *conn;
- unsigned int mode, pcm_channels, midi_ports;
int err;
- err = snd_efw_get_multiplier_mode(sampling_rate, &mode);
- if (err < 0)
- goto end;
- if (stream == &efw->tx_stream) {
- conn = &efw->out_conn;
- pcm_channels = efw->pcm_capture_channels[mode];
- midi_ports = efw->midi_out_ports;
- } else {
- conn = &efw->in_conn;
- pcm_channels = efw->pcm_playback_channels[mode];
- midi_ports = efw->midi_in_ports;
- }
-
- err = amdtp_am824_set_parameters(stream, sampling_rate,
- pcm_channels, midi_ports, false);
- if (err < 0)
- goto end;
-
- /* establish connection via CMP */
- err = cmp_connection_establish(conn,
- amdtp_stream_get_max_payload(stream));
- if (err < 0)
- goto end;
-
- /* start amdtp stream */
- err = amdtp_stream_start(stream,
- conn->resources.channel,
- conn->speed);
- if (err < 0) {
- stop_stream(efw, stream);
- goto end;
- }
-
- /* wait first callback */
- if (!amdtp_stream_wait_callback(stream, CALLBACK_TIMEOUT)) {
- stop_stream(efw, stream);
- err = -ETIMEDOUT;
- }
-end:
- return err;
-}
-
-/*
- * This function should be called before starting the stream or after stopping
- * the streams.
- */
-static void
-destroy_stream(struct snd_efw *efw, struct amdtp_stream *stream)
-{
- struct cmp_connection *conn;
-
if (stream == &efw->tx_stream)
conn = &efw->out_conn;
else
conn = &efw->in_conn;
+ // Establish connection via CMP.
+ err = cmp_connection_establish(conn);
+ if (err < 0)
+ return err;
+
+ // Start amdtp stream.
+ err = amdtp_domain_add_stream(&efw->domain, stream,
+ conn->resources.channel, conn->speed);
+ if (err < 0) {
+ cmp_connection_break(conn);
+ return err;
+ }
+
+ return 0;
+}
+
+// This function should be called before starting the stream or after stopping
+// the streams.
+static void destroy_stream(struct snd_efw *efw, struct amdtp_stream *stream)
+{
amdtp_stream_destroy(stream);
- cmp_connection_destroy(conn);
+
+ if (stream == &efw->tx_stream)
+ cmp_connection_destroy(&efw->out_conn);
+ else
+ cmp_connection_destroy(&efw->in_conn);
}
static int
@@ -150,131 +130,190 @@
err = init_stream(efw, &efw->tx_stream);
if (err < 0)
- goto end;
- /* Fireworks transmits NODATA packets with TAG0. */
- efw->tx_stream.flags |= CIP_EMPTY_WITH_TAG0;
- /* Fireworks has its own meaning for dbc. */
- efw->tx_stream.flags |= CIP_DBC_IS_END_EVENT;
- /* Fireworks reset dbc at bus reset. */
- efw->tx_stream.flags |= CIP_SKIP_DBC_ZERO_CHECK;
- /*
- * But Recent firmwares starts packets with non-zero dbc.
- * Driver version 5.7.6 installs firmware version 5.7.3.
- */
- if (efw->is_fireworks3 &&
- (efw->firmware_version == 0x5070000 ||
- efw->firmware_version == 0x5070300 ||
- efw->firmware_version == 0x5080000))
- efw->tx_stream.tx_first_dbc = 0x02;
- /* AudioFire9 always reports wrong dbs. */
- if (efw->is_af9)
- efw->tx_stream.flags |= CIP_WRONG_DBS;
- /* Firmware version 5.5 reports fixed interval for dbc. */
- if (efw->firmware_version == 0x5050000)
- efw->tx_stream.tx_dbc_interval = 8;
+ return err;
err = init_stream(efw, &efw->rx_stream);
if (err < 0) {
destroy_stream(efw, &efw->tx_stream);
- goto end;
+ return err;
}
- /* set IEC61883 compliant mode (actually not fully compliant...) */
+ err = amdtp_domain_init(&efw->domain);
+ if (err < 0) {
+ destroy_stream(efw, &efw->tx_stream);
+ destroy_stream(efw, &efw->rx_stream);
+ return err;
+ }
+
+ // set IEC61883 compliant mode (actually not fully compliant...).
err = snd_efw_command_set_tx_mode(efw, SND_EFW_TRANSPORT_MODE_IEC61883);
if (err < 0) {
destroy_stream(efw, &efw->tx_stream);
destroy_stream(efw, &efw->rx_stream);
}
-end:
+
return err;
}
-int snd_efw_stream_start_duplex(struct snd_efw *efw, unsigned int rate)
+static int keep_resources(struct snd_efw *efw, struct amdtp_stream *stream,
+ unsigned int rate, unsigned int mode)
+{
+ unsigned int pcm_channels;
+ unsigned int midi_ports;
+ struct cmp_connection *conn;
+ int err;
+
+ if (stream == &efw->tx_stream) {
+ pcm_channels = efw->pcm_capture_channels[mode];
+ midi_ports = efw->midi_out_ports;
+ conn = &efw->out_conn;
+ } else {
+ pcm_channels = efw->pcm_playback_channels[mode];
+ midi_ports = efw->midi_in_ports;
+ conn = &efw->in_conn;
+ }
+
+ err = amdtp_am824_set_parameters(stream, rate, pcm_channels,
+ midi_ports, false);
+ if (err < 0)
+ return err;
+
+ return cmp_connection_reserve(conn, amdtp_stream_get_max_payload(stream));
+}
+
+int snd_efw_stream_reserve_duplex(struct snd_efw *efw, unsigned int rate)
{
unsigned int curr_rate;
- int err = 0;
+ int err;
- /* Need no substreams */
- if (efw->playback_substreams == 0 && efw->capture_substreams == 0)
- goto end;
-
- /*
- * Considering JACK/FFADO streaming:
- * TODO: This can be removed hwdep functionality becomes popular.
- */
+ // Considering JACK/FFADO streaming:
+ // TODO: This can be removed hwdep functionality becomes popular.
err = check_connection_used_by_others(efw, &efw->rx_stream);
if (err < 0)
- goto end;
+ return err;
- /* packet queueing error */
- if (amdtp_streaming_error(&efw->tx_stream))
- stop_stream(efw, &efw->tx_stream);
- if (amdtp_streaming_error(&efw->rx_stream))
- stop_stream(efw, &efw->rx_stream);
-
- /* stop streams if rate is different */
+ // stop streams if rate is different.
err = snd_efw_command_get_sampling_rate(efw, &curr_rate);
if (err < 0)
- goto end;
+ return err;
if (rate == 0)
rate = curr_rate;
if (rate != curr_rate) {
- stop_stream(efw, &efw->tx_stream);
- stop_stream(efw, &efw->rx_stream);
+ amdtp_domain_stop(&efw->domain);
+
+ cmp_connection_break(&efw->out_conn);
+ cmp_connection_break(&efw->in_conn);
+
+ cmp_connection_release(&efw->out_conn);
+ cmp_connection_release(&efw->in_conn);
}
- /* master should be always running */
- if (!amdtp_stream_running(&efw->rx_stream)) {
+ if (efw->substreams_counter == 0 || rate != curr_rate) {
+ unsigned int mode;
+
err = snd_efw_command_set_sampling_rate(efw, rate);
if (err < 0)
- goto end;
+ return err;
+ err = snd_efw_get_multiplier_mode(rate, &mode);
+ if (err < 0)
+ return err;
+
+ err = keep_resources(efw, &efw->tx_stream, rate, mode);
+ if (err < 0)
+ return err;
+
+ err = keep_resources(efw, &efw->rx_stream, rate, mode);
+ if (err < 0) {
+ cmp_connection_release(&efw->in_conn);
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+int snd_efw_stream_start_duplex(struct snd_efw *efw)
+{
+ unsigned int rate;
+ int err = 0;
+
+ // Need no substreams.
+ if (efw->substreams_counter == 0)
+ return -EIO;
+
+ if (amdtp_streaming_error(&efw->rx_stream) ||
+ amdtp_streaming_error(&efw->tx_stream)) {
+ amdtp_domain_stop(&efw->domain);
+ cmp_connection_break(&efw->out_conn);
+ cmp_connection_break(&efw->in_conn);
+ }
+
+ err = snd_efw_command_get_sampling_rate(efw, &rate);
+ if (err < 0)
+ return err;
+
+ if (!amdtp_stream_running(&efw->rx_stream)) {
err = start_stream(efw, &efw->rx_stream, rate);
- if (err < 0) {
- dev_err(&efw->unit->device,
- "fail to start AMDTP master stream:%d\n", err);
- goto end;
+ if (err < 0)
+ goto error;
+
+ err = start_stream(efw, &efw->tx_stream, rate);
+ if (err < 0)
+ goto error;
+
+ err = amdtp_domain_start(&efw->domain);
+ if (err < 0)
+ goto error;
+
+ // Wait first callback.
+ if (!amdtp_stream_wait_callback(&efw->rx_stream,
+ CALLBACK_TIMEOUT) ||
+ !amdtp_stream_wait_callback(&efw->tx_stream,
+ CALLBACK_TIMEOUT)) {
+ err = -ETIMEDOUT;
+ goto error;
}
}
- /* start slave if needed */
- if (efw->capture_substreams > 0 &&
- !amdtp_stream_running(&efw->tx_stream)) {
- err = start_stream(efw, &efw->tx_stream, rate);
- if (err < 0) {
- dev_err(&efw->unit->device,
- "fail to start AMDTP slave stream:%d\n", err);
- stop_stream(efw, &efw->rx_stream);
- }
- }
-end:
+ return 0;
+error:
+ amdtp_domain_stop(&efw->domain);
+
+ cmp_connection_break(&efw->out_conn);
+ cmp_connection_break(&efw->in_conn);
+
return err;
}
void snd_efw_stream_stop_duplex(struct snd_efw *efw)
{
- if (efw->capture_substreams == 0) {
- stop_stream(efw, &efw->tx_stream);
+ if (efw->substreams_counter == 0) {
+ amdtp_domain_stop(&efw->domain);
- if (efw->playback_substreams == 0)
- stop_stream(efw, &efw->rx_stream);
+ cmp_connection_break(&efw->out_conn);
+ cmp_connection_break(&efw->in_conn);
+
+ cmp_connection_release(&efw->out_conn);
+ cmp_connection_release(&efw->in_conn);
}
}
void snd_efw_stream_update_duplex(struct snd_efw *efw)
{
- if (cmp_connection_update(&efw->out_conn) < 0 ||
- cmp_connection_update(&efw->in_conn) < 0) {
- stop_stream(efw, &efw->rx_stream);
- stop_stream(efw, &efw->tx_stream);
- } else {
- amdtp_stream_update(&efw->rx_stream);
- amdtp_stream_update(&efw->tx_stream);
- }
+ amdtp_domain_stop(&efw->domain);
+
+ cmp_connection_break(&efw->out_conn);
+ cmp_connection_break(&efw->in_conn);
+
+ amdtp_stream_pcm_abort(&efw->rx_stream);
+ amdtp_stream_pcm_abort(&efw->tx_stream);
}
void snd_efw_stream_destroy_duplex(struct snd_efw *efw)
{
+ amdtp_domain_destroy(&efw->domain);
+
destroy_stream(efw, &efw->rx_stream);
destroy_stream(efw, &efw->tx_stream);
}
diff --git a/sound/firewire/fireworks/fireworks_transaction.c b/sound/firewire/fireworks/fireworks_transaction.c
index 36a08ba..0f533f5 100644
--- a/sound/firewire/fireworks/fireworks_transaction.c
+++ b/sound/firewire/fireworks/fireworks_transaction.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* fireworks_transaction.c - a part of driver for Fireworks based devices
*
* Copyright (c) 2013-2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
/*
diff --git a/sound/firewire/isight.c b/sound/firewire/isight.c
index 3095747..a16beda 100644
--- a/sound/firewire/isight.c
+++ b/sound/firewire/isight.c
@@ -1,8 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Apple iSight audio driver
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include <asm/byteorder.h>
@@ -602,8 +602,6 @@
struct isight *isight = card->private_data;
fw_iso_resources_destroy(&isight->resources);
- fw_unit_put(isight->unit);
- mutex_destroy(&isight->mutex);
}
static u64 get_unit_base(struct fw_unit *unit)
@@ -640,7 +638,7 @@
if (!isight->audio_base) {
dev_err(&unit->device, "audio unit base not found\n");
err = -ENXIO;
- goto err_unit;
+ goto error;
}
fw_iso_resources_init(&isight->resources, unit);
@@ -669,12 +667,12 @@
dev_set_drvdata(&unit->device, isight);
return 0;
-
-err_unit:
- fw_unit_put(isight->unit);
- mutex_destroy(&isight->mutex);
error:
snd_card_free(card);
+
+ mutex_destroy(&isight->mutex);
+ fw_unit_put(isight->unit);
+
return err;
}
@@ -703,7 +701,11 @@
isight_stop_streaming(isight);
mutex_unlock(&isight->mutex);
- snd_card_free_when_closed(isight->card);
+ // Block till all of ALSA character devices are released.
+ snd_card_free(isight->card);
+
+ mutex_destroy(&isight->mutex);
+ fw_unit_put(isight->unit);
}
static const struct ieee1394_device_id isight_id_table[] = {
diff --git a/sound/firewire/iso-resources.c b/sound/firewire/iso-resources.c
index 066b5df..84f71b2 100644
--- a/sound/firewire/iso-resources.c
+++ b/sound/firewire/iso-resources.c
@@ -1,8 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* isochronous resources helper functions
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include <linux/device.h>
diff --git a/sound/firewire/lib.c b/sound/firewire/lib.c
index 39dfa74..85c4f44 100644
--- a/sound/firewire/lib.c
+++ b/sound/firewire/lib.c
@@ -1,8 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* miscellaneous helper functions
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include <linux/delay.h>
diff --git a/sound/firewire/motu/amdtp-motu-trace.h b/sound/firewire/motu/amdtp-motu-trace.h
index cd0cbfa..3d36f12 100644
--- a/sound/firewire/motu/amdtp-motu-trace.h
+++ b/sound/firewire/motu/amdtp-motu-trace.h
@@ -1,8 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* amdtp-motu-trace.h - tracepoint definitions to dump a part of packet data
*
* Copyright (c) 2017 Takashi Sakamoto
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#undef TRACE_SYSTEM
@@ -18,7 +18,7 @@
static void copy_message(u64 *frames, __be32 *buffer, unsigned int data_blocks,
unsigned int data_block_quadlets);
-TRACE_EVENT(in_data_block_sph,
+TRACE_EVENT(data_block_sph,
TP_PROTO(struct amdtp_stream *s, unsigned int data_blocks, __be32 *buffer),
TP_ARGS(s, data_blocks, buffer),
TP_STRUCT__entry(
@@ -28,8 +28,13 @@
__dynamic_array(u32, tstamps, data_blocks)
),
TP_fast_assign(
- __entry->src = fw_parent_device(s->unit)->node_id;
- __entry->dst = fw_parent_device(s->unit)->card->node_id;
+ if (s->direction == AMDTP_IN_STREAM) {
+ __entry->src = fw_parent_device(s->unit)->node_id;
+ __entry->dst = fw_parent_device(s->unit)->card->node_id;
+ } else {
+ __entry->src = fw_parent_device(s->unit)->card->node_id;
+ __entry->dst = fw_parent_device(s->unit)->node_id;
+ }
__entry->data_blocks = data_blocks;
copy_sph(__get_dynamic_array(tstamps), buffer, data_blocks, s->data_block_quadlets);
),
@@ -42,31 +47,7 @@
)
);
-TRACE_EVENT(out_data_block_sph,
- TP_PROTO(struct amdtp_stream *s, unsigned int data_blocks, __be32 *buffer),
- TP_ARGS(s, data_blocks, buffer),
- TP_STRUCT__entry(
- __field(int, src)
- __field(int, dst)
- __field(unsigned int, data_blocks)
- __dynamic_array(u32, tstamps, data_blocks)
- ),
- TP_fast_assign(
- __entry->src = fw_parent_device(s->unit)->card->node_id;
- __entry->dst = fw_parent_device(s->unit)->node_id;
- __entry->data_blocks = data_blocks;
- copy_sph(__get_dynamic_array(tstamps), buffer, data_blocks, s->data_block_quadlets);
- ),
- TP_printk(
- "%04x %04x %u %s",
- __entry->src,
- __entry->dst,
- __entry->data_blocks,
- __print_array(__get_dynamic_array(tstamps), __entry->data_blocks, 4)
- )
-);
-
-TRACE_EVENT(in_data_block_message,
+TRACE_EVENT(data_block_message,
TP_PROTO(struct amdtp_stream *s, unsigned int data_blocks, __be32 *buffer),
TP_ARGS(s, data_blocks, buffer),
TP_STRUCT__entry(
@@ -76,32 +57,13 @@
__dynamic_array(u64, messages, data_blocks)
),
TP_fast_assign(
- __entry->src = fw_parent_device(s->unit)->node_id;
- __entry->dst = fw_parent_device(s->unit)->card->node_id;
- __entry->data_blocks = data_blocks;
- copy_message(__get_dynamic_array(messages), buffer, data_blocks, s->data_block_quadlets);
- ),
- TP_printk(
- "%04x %04x %u %s",
- __entry->src,
- __entry->dst,
- __entry->data_blocks,
- __print_array(__get_dynamic_array(messages), __entry->data_blocks, 8)
- )
-);
-
-TRACE_EVENT(out_data_block_message,
- TP_PROTO(struct amdtp_stream *s, unsigned int data_blocks, __be32 *buffer),
- TP_ARGS(s, data_blocks, buffer),
- TP_STRUCT__entry(
- __field(int, src)
- __field(int, dst)
- __field(unsigned int, data_blocks)
- __dynamic_array(u64, messages, data_blocks)
- ),
- TP_fast_assign(
- __entry->src = fw_parent_device(s->unit)->card->node_id;
- __entry->dst = fw_parent_device(s->unit)->node_id;
+ if (s->direction == AMDTP_IN_STREAM) {
+ __entry->src = fw_parent_device(s->unit)->node_id;
+ __entry->dst = fw_parent_device(s->unit)->card->node_id;
+ } else {
+ __entry->src = fw_parent_device(s->unit)->card->node_id;
+ __entry->dst = fw_parent_device(s->unit)->node_id;
+ }
__entry->data_blocks = data_blocks;
copy_message(__get_dynamic_array(messages), buffer, data_blocks, s->data_block_quadlets);
),
diff --git a/sound/firewire/motu/amdtp-motu.c b/sound/firewire/motu/amdtp-motu.c
index f0555a2..0fd36e4 100644
--- a/sound/firewire/motu/amdtp-motu.c
+++ b/sound/firewire/motu/amdtp-motu.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* amdtp-motu.c - a part of driver for MOTU FireWire series
*
* Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include <linux/slab.h>
@@ -118,25 +117,33 @@
return 0;
}
-static void read_pcm_s32(struct amdtp_stream *s,
- struct snd_pcm_runtime *runtime,
- __be32 *buffer, unsigned int data_blocks)
+static void read_pcm_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm,
+ __be32 *buffer, unsigned int data_blocks,
+ unsigned int pcm_frames)
{
struct amdtp_motu *p = s->protocol;
- unsigned int channels, remaining_frames, i, c;
+ unsigned int channels = p->pcm_chunks;
+ struct snd_pcm_runtime *runtime = pcm->runtime;
+ unsigned int pcm_buffer_pointer;
+ int remaining_frames;
u8 *byte;
u32 *dst;
+ int i, c;
- channels = p->pcm_chunks;
+ pcm_buffer_pointer = s->pcm_buffer_pointer + pcm_frames;
+ pcm_buffer_pointer %= runtime->buffer_size;
+
dst = (void *)runtime->dma_area +
- frames_to_bytes(runtime, s->pcm_buffer_pointer);
- remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
+ frames_to_bytes(runtime, pcm_buffer_pointer);
+ remaining_frames = runtime->buffer_size - pcm_buffer_pointer;
for (i = 0; i < data_blocks; ++i) {
byte = (u8 *)buffer + p->pcm_byte_offset;
for (c = 0; c < channels; ++c) {
- *dst = (byte[0] << 24) | (byte[1] << 16) | byte[2];
+ *dst = (byte[0] << 24) |
+ (byte[1] << 16) |
+ (byte[2] << 8);
byte += 3;
dst++;
}
@@ -146,19 +153,25 @@
}
}
-static void write_pcm_s32(struct amdtp_stream *s,
- struct snd_pcm_runtime *runtime,
- __be32 *buffer, unsigned int data_blocks)
+static void write_pcm_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm,
+ __be32 *buffer, unsigned int data_blocks,
+ unsigned int pcm_frames)
{
struct amdtp_motu *p = s->protocol;
- unsigned int channels, remaining_frames, i, c;
+ unsigned int channels = p->pcm_chunks;
+ struct snd_pcm_runtime *runtime = pcm->runtime;
+ unsigned int pcm_buffer_pointer;
+ int remaining_frames;
u8 *byte;
const u32 *src;
+ int i, c;
- channels = p->pcm_chunks;
+ pcm_buffer_pointer = s->pcm_buffer_pointer + pcm_frames;
+ pcm_buffer_pointer %= runtime->buffer_size;
+
src = (void *)runtime->dma_area +
- frames_to_bytes(runtime, s->pcm_buffer_pointer);
- remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
+ frames_to_bytes(runtime, pcm_buffer_pointer);
+ remaining_frames = runtime->buffer_size - pcm_buffer_pointer;
for (i = 0; i < data_blocks; ++i) {
byte = (u8 *)buffer + p->pcm_byte_offset;
@@ -297,24 +310,52 @@
}
}
-static unsigned int process_tx_data_blocks(struct amdtp_stream *s,
- __be32 *buffer, unsigned int data_blocks,
- unsigned int *syt)
+static void probe_tracepoints_events(struct amdtp_stream *s,
+ const struct pkt_desc *descs,
+ unsigned int packets)
+{
+ int i;
+
+ for (i = 0; i < packets; ++i) {
+ const struct pkt_desc *desc = descs + i;
+ __be32 *buf = desc->ctx_payload;
+ unsigned int data_blocks = desc->data_blocks;
+
+ trace_data_block_sph(s, data_blocks, buf);
+ trace_data_block_message(s, data_blocks, buf);
+ }
+}
+
+static unsigned int process_ir_ctx_payloads(struct amdtp_stream *s,
+ const struct pkt_desc *descs,
+ unsigned int packets,
+ struct snd_pcm_substream *pcm)
{
struct amdtp_motu *p = s->protocol;
- struct snd_pcm_substream *pcm;
+ unsigned int pcm_frames = 0;
+ int i;
- trace_in_data_block_sph(s, data_blocks, buffer);
- trace_in_data_block_message(s, data_blocks, buffer);
+ // For data block processing.
+ for (i = 0; i < packets; ++i) {
+ const struct pkt_desc *desc = descs + i;
+ __be32 *buf = desc->ctx_payload;
+ unsigned int data_blocks = desc->data_blocks;
- if (p->midi_ports)
- read_midi_messages(s, buffer, data_blocks);
+ if (pcm) {
+ read_pcm_s32(s, pcm, buf, data_blocks, pcm_frames);
+ pcm_frames += data_blocks;
+ }
- pcm = READ_ONCE(s->pcm);
- if (data_blocks > 0 && pcm)
- read_pcm_s32(s, pcm->runtime, buffer, data_blocks);
+ if (p->midi_ports)
+ read_midi_messages(s, buf, data_blocks);
+ }
- return data_blocks;
+ // For tracepoints.
+ if (trace_data_block_sph_enabled() ||
+ trace_data_block_message_enabled())
+ probe_tracepoints_events(s, descs, packets);
+
+ return pcm_frames;
}
static inline void compute_next_elapse_from_start(struct amdtp_motu *p)
@@ -359,46 +400,55 @@
}
}
-static unsigned int process_rx_data_blocks(struct amdtp_stream *s,
- __be32 *buffer, unsigned int data_blocks,
- unsigned int *syt)
+static unsigned int process_it_ctx_payloads(struct amdtp_stream *s,
+ const struct pkt_desc *descs,
+ unsigned int packets,
+ struct snd_pcm_substream *pcm)
{
- struct amdtp_motu *p = (struct amdtp_motu *)s->protocol;
- struct snd_pcm_substream *pcm;
+ struct amdtp_motu *p = s->protocol;
+ unsigned int pcm_frames = 0;
+ int i;
- /* Not used. */
- *syt = 0xffff;
+ // For data block processing.
+ for (i = 0; i < packets; ++i) {
+ const struct pkt_desc *desc = descs + i;
+ __be32 *buf = desc->ctx_payload;
+ unsigned int data_blocks = desc->data_blocks;
- /* TODO: how to interact control messages between userspace? */
+ if (pcm) {
+ write_pcm_s32(s, pcm, buf, data_blocks, pcm_frames);
+ pcm_frames += data_blocks;
+ } else {
+ write_pcm_silence(s, buf, data_blocks);
+ }
- if (p->midi_ports)
- write_midi_messages(s, buffer, data_blocks);
+ if (p->midi_ports)
+ write_midi_messages(s, buf, data_blocks);
- pcm = READ_ONCE(s->pcm);
- if (pcm)
- write_pcm_s32(s, pcm->runtime, buffer, data_blocks);
- else
- write_pcm_silence(s, buffer, data_blocks);
+ // TODO: how to interact control messages between userspace?
- write_sph(s, buffer, data_blocks);
+ write_sph(s, buf, data_blocks);
+ }
- trace_out_data_block_sph(s, data_blocks, buffer);
- trace_out_data_block_message(s, data_blocks, buffer);
+ // For tracepoints.
+ if (trace_data_block_sph_enabled() ||
+ trace_data_block_message_enabled())
+ probe_tracepoints_events(s, descs, packets);
- return data_blocks;
+ return pcm_frames;
}
int amdtp_motu_init(struct amdtp_stream *s, struct fw_unit *unit,
enum amdtp_stream_direction dir,
const struct snd_motu_protocol *const protocol)
{
- amdtp_stream_process_data_blocks_t process_data_blocks;
+ amdtp_stream_process_ctx_payloads_t process_ctx_payloads;
int fmt = CIP_FMT_MOTU;
int flags = CIP_BLOCKING;
int err;
if (dir == AMDTP_IN_STREAM) {
- process_data_blocks = process_tx_data_blocks;
+ process_ctx_payloads = process_ir_ctx_payloads;
/*
* Units of version 3 transmits packets with invalid CIP header
@@ -410,18 +460,30 @@
CIP_HEADER_WITHOUT_EOH;
fmt = CIP_FMT_MOTU_TX_V3;
}
+
+ if (protocol == &snd_motu_protocol_v2) {
+ // 8pre has some quirks.
+ flags |= CIP_WRONG_DBS |
+ CIP_SKIP_DBC_ZERO_CHECK;
+ }
} else {
- process_data_blocks = process_rx_data_blocks;
+ process_ctx_payloads = process_it_ctx_payloads;
flags |= CIP_DBC_IS_END_EVENT;
}
- err = amdtp_stream_init(s, unit, dir, flags, fmt, process_data_blocks,
+ err = amdtp_stream_init(s, unit, dir, flags, fmt, process_ctx_payloads,
sizeof(struct amdtp_motu));
if (err < 0)
return err;
s->sph = 1;
- s->fdf = MOTU_FDF_AM824;
+
+ if (dir == AMDTP_OUT_STREAM) {
+ // Use fixed value for FDF field.
+ s->ctx_data.rx.fdf = MOTU_FDF_AM824;
+ // Not used.
+ s->ctx_data.rx.syt_override = 0xffff;
+ }
return 0;
}
diff --git a/sound/firewire/motu/motu-hwdep.c b/sound/firewire/motu/motu-hwdep.c
index 5f772ea..0764a47 100644
--- a/sound/firewire/motu/motu-hwdep.c
+++ b/sound/firewire/motu/motu-hwdep.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* motu-hwdep.c - a part of driver for MOTU FireWire series
*
* Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
/*
diff --git a/sound/firewire/motu/motu-midi.c b/sound/firewire/motu/motu-midi.c
index e55cab6..46a0035 100644
--- a/sound/firewire/motu/motu-midi.c
+++ b/sound/firewire/motu/motu-midi.c
@@ -1,13 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* motu-midi.h - a part of driver for MOTU FireWire series
*
* Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "motu.h"
-static int midi_capture_open(struct snd_rawmidi_substream *substream)
+static int midi_open(struct snd_rawmidi_substream *substream)
{
struct snd_motu *motu = substream->rmidi->private_data;
int err;
@@ -18,8 +17,13 @@
mutex_lock(&motu->mutex);
- motu->capture_substreams++;
- err = snd_motu_stream_start_duplex(motu, 0);
+ err = snd_motu_stream_reserve_duplex(motu, 0);
+ if (err >= 0) {
+ ++motu->substreams_counter;
+ err = snd_motu_stream_start_duplex(motu);
+ if (err < 0)
+ --motu->substreams_counter;
+ }
mutex_unlock(&motu->mutex);
@@ -29,50 +33,13 @@
return err;
}
-static int midi_playback_open(struct snd_rawmidi_substream *substream)
-{
- struct snd_motu *motu = substream->rmidi->private_data;
- int err;
-
- err = snd_motu_stream_lock_try(motu);
- if (err < 0)
- return err;
-
- mutex_lock(&motu->mutex);
-
- motu->playback_substreams++;
- err = snd_motu_stream_start_duplex(motu, 0);
-
- mutex_unlock(&motu->mutex);
-
- if (err < 0)
- snd_motu_stream_lock_release(motu);
-
- return err;
-}
-
-static int midi_capture_close(struct snd_rawmidi_substream *substream)
+static int midi_close(struct snd_rawmidi_substream *substream)
{
struct snd_motu *motu = substream->rmidi->private_data;
mutex_lock(&motu->mutex);
- motu->capture_substreams--;
- snd_motu_stream_stop_duplex(motu);
-
- mutex_unlock(&motu->mutex);
-
- snd_motu_stream_lock_release(motu);
- return 0;
-}
-
-static int midi_playback_close(struct snd_rawmidi_substream *substream)
-{
- struct snd_motu *motu = substream->rmidi->private_data;
-
- mutex_lock(&motu->mutex);
-
- motu->playback_substreams--;
+ --motu->substreams_counter;
snd_motu_stream_stop_duplex(motu);
mutex_unlock(&motu->mutex);
@@ -129,13 +96,13 @@
int snd_motu_create_midi_devices(struct snd_motu *motu)
{
static const struct snd_rawmidi_ops capture_ops = {
- .open = midi_capture_open,
- .close = midi_capture_close,
+ .open = midi_open,
+ .close = midi_close,
.trigger = midi_capture_trigger,
};
static const struct snd_rawmidi_ops playback_ops = {
- .open = midi_playback_open,
- .close = midi_playback_close,
+ .open = midi_open,
+ .close = midi_close,
.trigger = midi_playback_trigger,
};
struct snd_rawmidi *rmidi;
diff --git a/sound/firewire/motu/motu-pcm.c b/sound/firewire/motu/motu-pcm.c
index ab69d7e..aa2e584 100644
--- a/sound/firewire/motu/motu-pcm.c
+++ b/sound/firewire/motu/motu-pcm.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* motu-pcm.c - a part of driver for MOTU FireWire series
*
* Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include <sound/pcm_params.h>
@@ -190,8 +189,8 @@
return 0;
}
-static int capture_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
+static int pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
{
struct snd_motu *motu = substream->private_data;
int err;
@@ -202,57 +201,26 @@
return err;
if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
+ unsigned int rate = params_rate(hw_params);
+
mutex_lock(&motu->mutex);
- motu->capture_substreams++;
+ err = snd_motu_stream_reserve_duplex(motu, rate);
+ if (err >= 0)
+ ++motu->substreams_counter;
mutex_unlock(&motu->mutex);
}
- return 0;
-}
-static int playback_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
-{
- struct snd_motu *motu = substream->private_data;
- int err;
-
- err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
- params_buffer_bytes(hw_params));
- if (err < 0)
- return err;
-
- if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
- mutex_lock(&motu->mutex);
- motu->playback_substreams++;
- mutex_unlock(&motu->mutex);
- }
-
- return 0;
+ return err;
}
-static int capture_hw_free(struct snd_pcm_substream *substream)
+static int pcm_hw_free(struct snd_pcm_substream *substream)
{
struct snd_motu *motu = substream->private_data;
mutex_lock(&motu->mutex);
if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN)
- motu->capture_substreams--;
-
- snd_motu_stream_stop_duplex(motu);
-
- mutex_unlock(&motu->mutex);
-
- return snd_pcm_lib_free_vmalloc_buffer(substream);
-}
-
-static int playback_hw_free(struct snd_pcm_substream *substream)
-{
- struct snd_motu *motu = substream->private_data;
-
- mutex_lock(&motu->mutex);
-
- if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN)
- motu->playback_substreams--;
+ --motu->substreams_counter;
snd_motu_stream_stop_duplex(motu);
@@ -267,7 +235,7 @@
int err;
mutex_lock(&motu->mutex);
- err = snd_motu_stream_start_duplex(motu, substream->runtime->rate);
+ err = snd_motu_stream_start_duplex(motu);
mutex_unlock(&motu->mutex);
if (err >= 0)
amdtp_stream_pcm_prepare(&motu->tx_stream);
@@ -280,7 +248,7 @@
int err;
mutex_lock(&motu->mutex);
- err = snd_motu_stream_start_duplex(motu, substream->runtime->rate);
+ err = snd_motu_stream_start_duplex(motu);
mutex_unlock(&motu->mutex);
if (err >= 0)
amdtp_stream_pcm_prepare(&motu->rx_stream);
@@ -356,8 +324,8 @@
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,
- .hw_params = capture_hw_params,
- .hw_free = capture_hw_free,
+ .hw_params = pcm_hw_params,
+ .hw_free = pcm_hw_free,
.prepare = capture_prepare,
.trigger = capture_trigger,
.pointer = capture_pointer,
@@ -368,8 +336,8 @@
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,
- .hw_params = playback_hw_params,
- .hw_free = playback_hw_free,
+ .hw_params = pcm_hw_params,
+ .hw_free = pcm_hw_free,
.prepare = playback_prepare,
.trigger = playback_trigger,
.pointer = playback_pointer,
diff --git a/sound/firewire/motu/motu-proc.c b/sound/firewire/motu/motu-proc.c
index ab6830a..ea46fb4 100644
--- a/sound/firewire/motu/motu-proc.c
+++ b/sound/firewire/motu/motu-proc.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* motu-proc.c - a part of driver for MOTU FireWire series
*
* Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "./motu.h"
@@ -87,12 +86,8 @@
struct snd_info_entry *entry;
entry = snd_info_create_card_entry(motu->card, name, root);
- if (entry == NULL)
- return;
-
- snd_info_set_text_ops(entry, motu, op);
- if (snd_info_register(entry) < 0)
- snd_info_free_entry(entry);
+ if (entry)
+ snd_info_set_text_ops(entry, motu, op);
}
void snd_motu_proc_init(struct snd_motu *motu)
@@ -108,10 +103,6 @@
if (root == NULL)
return;
root->mode = S_IFDIR | 0555;
- if (snd_info_register(root) < 0) {
- snd_info_free_entry(root);
- return;
- }
add_node(motu, root, "clock", proc_read_clock);
add_node(motu, root, "format", proc_read_format);
diff --git a/sound/firewire/motu/motu-protocol-v2.c b/sound/firewire/motu/motu-protocol-v2.c
index 453fc29..9e2f16e 100644
--- a/sound/firewire/motu/motu-protocol-v2.c
+++ b/sound/firewire/motu/motu-protocol-v2.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* motu-protocol-v2.c - a part of driver for MOTU FireWire series
*
* Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "motu.h"
@@ -15,6 +14,8 @@
#define V2_CLOCK_SRC_SHIFT 0
#define V2_CLOCK_TRAVELER_FETCH_DISABLE 0x04000000
#define V2_CLOCK_TRAVELER_FETCH_ENABLE 0x03000000
+#define V2_CLOCK_8PRE_FETCH_DISABLE 0x02000000
+#define V2_CLOCK_8PRE_FETCH_ENABLE 0x00000000
#define V2_IN_OUT_CONF_OFFSET 0x0c04
#define V2_OPT_OUT_IFACE_MASK 0x00000c00
@@ -132,20 +133,31 @@
u32 data;
int err = 0;
- if (motu->spec == &snd_motu_spec_traveler) {
+ if (motu->spec == &snd_motu_spec_traveler ||
+ motu->spec == &snd_motu_spec_8pre) {
err = snd_motu_transaction_read(motu, V2_CLOCK_STATUS_OFFSET,
®, sizeof(reg));
if (err < 0)
return err;
data = be32_to_cpu(reg);
- data &= ~(V2_CLOCK_TRAVELER_FETCH_DISABLE |
- V2_CLOCK_TRAVELER_FETCH_ENABLE);
+ if (motu->spec == &snd_motu_spec_traveler) {
+ data &= ~(V2_CLOCK_TRAVELER_FETCH_DISABLE |
+ V2_CLOCK_TRAVELER_FETCH_ENABLE);
- if (enable)
- data |= V2_CLOCK_TRAVELER_FETCH_ENABLE;
- else
- data |= V2_CLOCK_TRAVELER_FETCH_DISABLE;
+ if (enable)
+ data |= V2_CLOCK_TRAVELER_FETCH_ENABLE;
+ else
+ data |= V2_CLOCK_TRAVELER_FETCH_DISABLE;
+ } else if (motu->spec == &snd_motu_spec_8pre) {
+ data &= ~(V2_CLOCK_8PRE_FETCH_DISABLE |
+ V2_CLOCK_8PRE_FETCH_ENABLE);
+
+ if (enable)
+ data |= V2_CLOCK_8PRE_FETCH_DISABLE;
+ else
+ data |= V2_CLOCK_8PRE_FETCH_ENABLE;
+ }
reg = cpu_to_be32(data);
err = snd_motu_transaction_write(motu, V2_CLOCK_STATUS_OFFSET,
@@ -220,10 +232,16 @@
* interfaces.
*/
data = (data & mask) >> shift;
- if ((flags & SND_MOTU_SPEC_HAS_OPT_IFACE_A) &&
- data == V2_OPT_IFACE_MODE_ADAT) {
- pcm_chunks[0] += 8;
- pcm_chunks[1] += 4;
+ if (data == V2_OPT_IFACE_MODE_ADAT) {
+ if (flags & SND_MOTU_SPEC_HAS_OPT_IFACE_A) {
+ pcm_chunks[0] += 8;
+ pcm_chunks[1] += 4;
+ }
+ // 8pre has two sets of optical interface and doesn't reduce
+ // chunks for ADAT signals.
+ if (flags & SND_MOTU_SPEC_HAS_OPT_IFACE_B) {
+ pcm_chunks[1] += 4;
+ }
}
/* At mode x4, no data chunks are supported in this part. */
diff --git a/sound/firewire/motu/motu-protocol-v3.c b/sound/firewire/motu/motu-protocol-v3.c
index 7cc80a0..5eafa50 100644
--- a/sound/firewire/motu/motu-protocol-v3.c
+++ b/sound/firewire/motu/motu-protocol-v3.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* motu-protocol-v3.c - a part of driver for MOTU FireWire series
*
* Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include <linux/delay.h>
diff --git a/sound/firewire/motu/motu-stream.c b/sound/firewire/motu/motu-stream.c
index 73e7a5e..813e38e 100644
--- a/sound/firewire/motu/motu-stream.c
+++ b/sound/firewire/motu/motu-stream.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* motu-stream.c - a part of driver for MOTU FireWire series
*
* Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "motu.h"
@@ -26,48 +25,47 @@
#define RX_PACKET_EXCLUDE_DIFFERED_DATA_CHUNKS 0x00000040
#define TX_PACKET_TRANSMISSION_SPEED_MASK 0x0000000f
-static int start_both_streams(struct snd_motu *motu, unsigned int rate)
+static int keep_resources(struct snd_motu *motu, unsigned int rate,
+ struct amdtp_stream *stream)
{
+ struct fw_iso_resources *resources;
+ struct snd_motu_packet_format *packet_format;
unsigned int midi_ports = 0;
+ int err;
+
+ if (stream == &motu->rx_stream) {
+ resources = &motu->rx_resources;
+ packet_format = &motu->rx_packet_formats;
+
+ if ((motu->spec->flags & SND_MOTU_SPEC_RX_MIDI_2ND_Q) ||
+ (motu->spec->flags & SND_MOTU_SPEC_RX_MIDI_3RD_Q))
+ midi_ports = 1;
+ } else {
+ resources = &motu->tx_resources;
+ packet_format = &motu->tx_packet_formats;
+
+ if ((motu->spec->flags & SND_MOTU_SPEC_TX_MIDI_2ND_Q) ||
+ (motu->spec->flags & SND_MOTU_SPEC_TX_MIDI_3RD_Q))
+ midi_ports = 1;
+ }
+
+ err = amdtp_motu_set_parameters(stream, rate, midi_ports,
+ packet_format);
+ if (err < 0)
+ return err;
+
+ return fw_iso_resources_allocate(resources,
+ amdtp_stream_get_max_payload(stream),
+ fw_parent_device(motu->unit)->max_speed);
+}
+
+static int begin_session(struct snd_motu *motu)
+{
__be32 reg;
u32 data;
int err;
- if ((motu->spec->flags & SND_MOTU_SPEC_RX_MIDI_2ND_Q) ||
- (motu->spec->flags & SND_MOTU_SPEC_RX_MIDI_3RD_Q))
- midi_ports = 1;
-
- /* Set packet formation to our packet streaming engine. */
- err = amdtp_motu_set_parameters(&motu->rx_stream, rate, midi_ports,
- &motu->rx_packet_formats);
- if (err < 0)
- return err;
-
- if ((motu->spec->flags & SND_MOTU_SPEC_TX_MIDI_2ND_Q) ||
- (motu->spec->flags & SND_MOTU_SPEC_TX_MIDI_3RD_Q))
- midi_ports = 1;
- else
- midi_ports = 0;
-
- err = amdtp_motu_set_parameters(&motu->tx_stream, rate, midi_ports,
- &motu->tx_packet_formats);
- if (err < 0)
- return err;
-
- /* Get isochronous resources on the bus. */
- err = fw_iso_resources_allocate(&motu->rx_resources,
- amdtp_stream_get_max_payload(&motu->rx_stream),
- fw_parent_device(motu->unit)->max_speed);
- if (err < 0)
- return err;
-
- err = fw_iso_resources_allocate(&motu->tx_resources,
- amdtp_stream_get_max_payload(&motu->tx_stream),
- fw_parent_device(motu->unit)->max_speed);
- if (err < 0)
- return err;
-
- /* Configure the unit to start isochronous communication. */
+ // Configure the unit to start isochronous communication.
err = snd_motu_transaction_read(motu, ISOC_COMM_CONTROL_OFFSET, ®,
sizeof(reg));
if (err < 0)
@@ -84,7 +82,7 @@
sizeof(reg));
}
-static void stop_both_streams(struct snd_motu *motu)
+static void finish_session(struct snd_motu *motu)
{
__be32 reg;
u32 data;
@@ -106,46 +104,6 @@
reg = cpu_to_be32(data);
snd_motu_transaction_write(motu, ISOC_COMM_CONTROL_OFFSET, ®,
sizeof(reg));
-
- fw_iso_resources_free(&motu->tx_resources);
- fw_iso_resources_free(&motu->rx_resources);
-}
-
-static int start_isoc_ctx(struct snd_motu *motu, struct amdtp_stream *stream)
-{
- struct fw_iso_resources *resources;
- int err;
-
- if (stream == &motu->rx_stream)
- resources = &motu->rx_resources;
- else
- resources = &motu->tx_resources;
-
- err = amdtp_stream_start(stream, resources->channel,
- fw_parent_device(motu->unit)->max_speed);
- if (err < 0)
- return err;
-
- if (!amdtp_stream_wait_callback(stream, CALLBACK_TIMEOUT)) {
- amdtp_stream_stop(stream);
- fw_iso_resources_free(resources);
- return -ETIMEDOUT;
- }
-
- return 0;
-}
-
-static void stop_isoc_ctx(struct snd_motu *motu, struct amdtp_stream *stream)
-{
- struct fw_iso_resources *resources;
-
- if (stream == &motu->rx_stream)
- resources = &motu->rx_resources;
- else
- resources = &motu->tx_resources;
-
- amdtp_stream_stop(stream);
- fw_iso_resources_free(resources);
}
int snd_motu_stream_cache_packet_formats(struct snd_motu *motu)
@@ -175,6 +133,49 @@
return 0;
}
+int snd_motu_stream_reserve_duplex(struct snd_motu *motu, unsigned int rate)
+{
+ unsigned int curr_rate;
+ int err;
+
+ err = motu->spec->protocol->get_clock_rate(motu, &curr_rate);
+ if (err < 0)
+ return err;
+ if (rate == 0)
+ rate = curr_rate;
+
+ if (motu->substreams_counter == 0 || curr_rate != rate) {
+ amdtp_domain_stop(&motu->domain);
+ finish_session(motu);
+
+ fw_iso_resources_free(&motu->tx_resources);
+ fw_iso_resources_free(&motu->rx_resources);
+
+ err = motu->spec->protocol->set_clock_rate(motu, rate);
+ if (err < 0) {
+ dev_err(&motu->unit->device,
+ "fail to set sampling rate: %d\n", err);
+ return err;
+ }
+
+ err = snd_motu_stream_cache_packet_formats(motu);
+ if (err < 0)
+ return err;
+
+ err = keep_resources(motu, rate, &motu->tx_stream);
+ if (err < 0)
+ return err;
+
+ err = keep_resources(motu, rate, &motu->rx_stream);
+ if (err < 0) {
+ fw_iso_resources_free(&motu->tx_resources);
+ return err;
+ }
+ }
+
+ return 0;
+}
+
static int ensure_packet_formats(struct snd_motu *motu)
{
__be32 reg;
@@ -201,69 +202,67 @@
sizeof(reg));
}
-int snd_motu_stream_start_duplex(struct snd_motu *motu, unsigned int rate)
+int snd_motu_stream_start_duplex(struct snd_motu *motu)
{
- const struct snd_motu_protocol *protocol = motu->spec->protocol;
- unsigned int curr_rate;
+ unsigned int generation = motu->rx_resources.generation;
int err = 0;
- if (motu->capture_substreams == 0 && motu->playback_substreams == 0)
+ if (motu->substreams_counter == 0)
return 0;
- /* Some packet queueing errors. */
if (amdtp_streaming_error(&motu->rx_stream) ||
amdtp_streaming_error(&motu->tx_stream)) {
- amdtp_stream_stop(&motu->rx_stream);
- amdtp_stream_stop(&motu->tx_stream);
- stop_both_streams(motu);
+ amdtp_domain_stop(&motu->domain);
+ finish_session(motu);
}
- err = snd_motu_stream_cache_packet_formats(motu);
- if (err < 0)
- return err;
+ if (generation != fw_parent_device(motu->unit)->card->generation) {
+ err = fw_iso_resources_update(&motu->rx_resources);
+ if (err < 0)
+ return err;
- /* Stop stream if rate is different. */
- err = protocol->get_clock_rate(motu, &curr_rate);
- if (err < 0) {
- dev_err(&motu->unit->device,
- "fail to get sampling rate: %d\n", err);
- return err;
- }
- if (rate == 0)
- rate = curr_rate;
- if (rate != curr_rate) {
- amdtp_stream_stop(&motu->rx_stream);
- amdtp_stream_stop(&motu->tx_stream);
- stop_both_streams(motu);
+ err = fw_iso_resources_update(&motu->tx_resources);
+ if (err < 0)
+ return err;
}
if (!amdtp_stream_running(&motu->rx_stream)) {
- err = protocol->set_clock_rate(motu, rate);
- if (err < 0) {
- dev_err(&motu->unit->device,
- "fail to set sampling rate: %d\n", err);
- return err;
- }
+ int spd = fw_parent_device(motu->unit)->max_speed;
err = ensure_packet_formats(motu);
if (err < 0)
return err;
- err = start_both_streams(motu, rate);
+ err = begin_session(motu);
if (err < 0) {
dev_err(&motu->unit->device,
"fail to start isochronous comm: %d\n", err);
goto stop_streams;
}
- err = start_isoc_ctx(motu, &motu->rx_stream);
- if (err < 0) {
- dev_err(&motu->unit->device,
- "fail to start IT context: %d\n", err);
+ err = amdtp_domain_add_stream(&motu->domain, &motu->tx_stream,
+ motu->tx_resources.channel, spd);
+ if (err < 0)
+ goto stop_streams;
+
+ err = amdtp_domain_add_stream(&motu->domain, &motu->rx_stream,
+ motu->rx_resources.channel, spd);
+ if (err < 0)
+ goto stop_streams;
+
+ err = amdtp_domain_start(&motu->domain);
+ if (err < 0)
+ goto stop_streams;
+
+ if (!amdtp_stream_wait_callback(&motu->tx_stream,
+ CALLBACK_TIMEOUT) ||
+ !amdtp_stream_wait_callback(&motu->rx_stream,
+ CALLBACK_TIMEOUT)) {
+ err = -ETIMEDOUT;
goto stop_streams;
}
- err = protocol->switch_fetching_mode(motu, true);
+ err = motu->spec->protocol->switch_fetching_mode(motu, true);
if (err < 0) {
dev_err(&motu->unit->device,
"fail to enable frame fetching: %d\n", err);
@@ -271,109 +270,93 @@
}
}
- if (!amdtp_stream_running(&motu->tx_stream) &&
- motu->capture_substreams > 0) {
- err = start_isoc_ctx(motu, &motu->tx_stream);
- if (err < 0) {
- dev_err(&motu->unit->device,
- "fail to start IR context: %d", err);
- amdtp_stream_stop(&motu->rx_stream);
- goto stop_streams;
- }
- }
-
return 0;
stop_streams:
- stop_both_streams(motu);
+ amdtp_domain_stop(&motu->domain);
+ finish_session(motu);
return err;
}
void snd_motu_stream_stop_duplex(struct snd_motu *motu)
{
- if (motu->capture_substreams == 0) {
- if (amdtp_stream_running(&motu->tx_stream))
- stop_isoc_ctx(motu, &motu->tx_stream);
+ if (motu->substreams_counter == 0) {
+ amdtp_domain_stop(&motu->domain);
+ finish_session(motu);
- if (motu->playback_substreams == 0) {
- if (amdtp_stream_running(&motu->rx_stream))
- stop_isoc_ctx(motu, &motu->rx_stream);
- stop_both_streams(motu);
- }
+ fw_iso_resources_free(&motu->tx_resources);
+ fw_iso_resources_free(&motu->rx_resources);
}
}
-static int init_stream(struct snd_motu *motu, enum amdtp_stream_direction dir)
+static int init_stream(struct snd_motu *motu, struct amdtp_stream *s)
{
- int err;
- struct amdtp_stream *stream;
struct fw_iso_resources *resources;
+ enum amdtp_stream_direction dir;
+ int err;
- if (dir == AMDTP_IN_STREAM) {
- stream = &motu->tx_stream;
+ if (s == &motu->tx_stream) {
resources = &motu->tx_resources;
+ dir = AMDTP_IN_STREAM;
} else {
- stream = &motu->rx_stream;
resources = &motu->rx_resources;
+ dir = AMDTP_OUT_STREAM;
}
err = fw_iso_resources_init(resources, motu->unit);
if (err < 0)
return err;
- err = amdtp_motu_init(stream, motu->unit, dir, motu->spec->protocol);
- if (err < 0) {
- amdtp_stream_destroy(stream);
+ err = amdtp_motu_init(s, motu->unit, dir, motu->spec->protocol);
+ if (err < 0)
fw_iso_resources_destroy(resources);
- }
return err;
}
-static void destroy_stream(struct snd_motu *motu,
- enum amdtp_stream_direction dir)
+static void destroy_stream(struct snd_motu *motu, struct amdtp_stream *s)
{
- struct amdtp_stream *stream;
- struct fw_iso_resources *resources;
+ amdtp_stream_destroy(s);
- if (dir == AMDTP_IN_STREAM) {
- stream = &motu->tx_stream;
- resources = &motu->tx_resources;
- } else {
- stream = &motu->rx_stream;
- resources = &motu->rx_resources;
- }
-
- amdtp_stream_destroy(stream);
- fw_iso_resources_free(resources);
+ if (s == &motu->tx_stream)
+ fw_iso_resources_destroy(&motu->tx_resources);
+ else
+ fw_iso_resources_destroy(&motu->rx_resources);
}
int snd_motu_stream_init_duplex(struct snd_motu *motu)
{
int err;
- err = init_stream(motu, AMDTP_IN_STREAM);
+ err = init_stream(motu, &motu->tx_stream);
if (err < 0)
return err;
- err = init_stream(motu, AMDTP_OUT_STREAM);
- if (err < 0)
- destroy_stream(motu, AMDTP_IN_STREAM);
+ err = init_stream(motu, &motu->rx_stream);
+ if (err < 0) {
+ destroy_stream(motu, &motu->tx_stream);
+ return err;
+ }
+
+ err = amdtp_domain_init(&motu->domain);
+ if (err < 0) {
+ destroy_stream(motu, &motu->tx_stream);
+ destroy_stream(motu, &motu->rx_stream);
+ }
return err;
}
-/*
- * This function should be called before starting streams or after stopping
- * streams.
- */
+// This function should be called before starting streams or after stopping
+// streams.
void snd_motu_stream_destroy_duplex(struct snd_motu *motu)
{
- destroy_stream(motu, AMDTP_IN_STREAM);
- destroy_stream(motu, AMDTP_OUT_STREAM);
+ amdtp_domain_destroy(&motu->domain);
- motu->playback_substreams = 0;
- motu->capture_substreams = 0;
+ destroy_stream(motu, &motu->rx_stream);
+ destroy_stream(motu, &motu->tx_stream);
+
+ motu->substreams_counter = 0;
}
static void motu_lock_changed(struct snd_motu *motu)
diff --git a/sound/firewire/motu/motu-transaction.c b/sound/firewire/motu/motu-transaction.c
index 7fc3009..2dc1d6e 100644
--- a/sound/firewire/motu/motu-transaction.c
+++ b/sound/firewire/motu/motu-transaction.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* motu-transaction.c - a part of driver for MOTU FireWire series
*
* Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
diff --git a/sound/firewire/motu/motu.c b/sound/firewire/motu/motu.c
index 300d31b..72908b4 100644
--- a/sound/firewire/motu/motu.c
+++ b/sound/firewire/motu/motu.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* motu.c - a part of driver for MOTU FireWire series
*
* Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "motu.h"
@@ -36,7 +35,7 @@
fw_csr_iterator_init(&it, motu->unit->directory);
while (fw_csr_iterator_next(&it, &key, &val)) {
switch (key) {
- case CSR_VERSION:
+ case CSR_MODEL:
version = val;
break;
}
@@ -46,32 +45,18 @@
strcpy(motu->card->shortname, motu->spec->name);
strcpy(motu->card->mixername, motu->spec->name);
snprintf(motu->card->longname, sizeof(motu->card->longname),
- "MOTU %s (version:%d), GUID %08x%08x at %s, S%d",
+ "MOTU %s (version:%06x), GUID %08x%08x at %s, S%d",
motu->spec->name, version,
fw_dev->config_rom[3], fw_dev->config_rom[4],
dev_name(&motu->unit->device), 100 << fw_dev->max_speed);
}
-static void motu_free(struct snd_motu *motu)
-{
- snd_motu_transaction_unregister(motu);
-
- snd_motu_stream_destroy_duplex(motu);
- fw_unit_put(motu->unit);
-
- mutex_destroy(&motu->mutex);
- kfree(motu);
-}
-
-/*
- * This module releases the FireWire unit data after all ALSA character devices
- * are released by applications. This is for releasing stream data or finishing
- * transactions safely. Thus at returning from .remove(), this module still keep
- * references for the unit.
- */
static void motu_card_free(struct snd_card *card)
{
- motu_free(card->private_data);
+ struct snd_motu *motu = card->private_data;
+
+ snd_motu_transaction_unregister(motu);
+ snd_motu_stream_destroy_duplex(motu);
}
static void do_registration(struct work_struct *work)
@@ -86,6 +71,8 @@
&motu->card);
if (err < 0)
return;
+ motu->card->private_free = motu_card_free;
+ motu->card->private_data = motu;
name_card(motu);
@@ -120,18 +107,10 @@
if (err < 0)
goto error;
- /*
- * After registered, motu instance can be released corresponding to
- * releasing the sound card instance.
- */
- motu->card->private_free = motu_card_free;
- motu->card->private_data = motu;
motu->registered = true;
return;
error:
- snd_motu_transaction_unregister(motu);
- snd_motu_stream_destroy_duplex(motu);
snd_card_free(motu->card);
dev_info(&motu->unit->device,
"Sound card registration failed: %d\n", err);
@@ -143,14 +122,13 @@
struct snd_motu *motu;
/* Allocate this independently of sound card instance. */
- motu = kzalloc(sizeof(struct snd_motu), GFP_KERNEL);
- if (motu == NULL)
+ motu = devm_kzalloc(&unit->device, sizeof(struct snd_motu), GFP_KERNEL);
+ if (!motu)
return -ENOMEM;
-
- motu->spec = (const struct snd_motu_spec *)entry->driver_data;
motu->unit = fw_unit_get(unit);
dev_set_drvdata(&unit->device, motu);
+ motu->spec = (const struct snd_motu_spec *)entry->driver_data;
mutex_init(&motu->mutex);
spin_lock_init(&motu->lock);
init_waitqueue_head(&motu->hwdep_wait);
@@ -174,12 +152,12 @@
cancel_delayed_work_sync(&motu->dwork);
if (motu->registered) {
- /* No need to wait for releasing card object in this context. */
- snd_card_free_when_closed(motu->card);
- } else {
- /* Don't forget this case. */
- motu_free(motu);
+ // Block till all of ALSA character devices are released.
+ snd_card_free(motu->card);
}
+
+ mutex_destroy(&motu->mutex);
+ fw_unit_put(motu->unit);
}
static void motu_bus_update(struct fw_unit *unit)
@@ -224,6 +202,20 @@
.analog_out_ports = 8,
};
+const struct snd_motu_spec snd_motu_spec_8pre = {
+ .name = "8pre",
+ .protocol = &snd_motu_protocol_v2,
+ // In tx, use coax chunks for mix-return 1/2. In rx, use coax chunks for
+ // dummy 1/2.
+ .flags = SND_MOTU_SPEC_SUPPORT_CLOCK_X2 |
+ SND_MOTU_SPEC_HAS_OPT_IFACE_A |
+ SND_MOTU_SPEC_HAS_OPT_IFACE_B |
+ SND_MOTU_SPEC_RX_MIDI_2ND_Q |
+ SND_MOTU_SPEC_TX_MIDI_2ND_Q,
+ .analog_in_ports = 8,
+ .analog_out_ports = 2,
+};
+
static const struct snd_motu_spec motu_828mk3 = {
.name = "828mk3",
.protocol = &snd_motu_protocol_v3,
@@ -255,23 +247,36 @@
.analog_out_ports = 4,
};
+static const struct snd_motu_spec motu_4pre = {
+ .name = "4pre",
+ .protocol = &snd_motu_protocol_v3,
+ .flags = SND_MOTU_SPEC_SUPPORT_CLOCK_X2 |
+ SND_MOTU_SPEC_TX_MICINST_CHUNK |
+ SND_MOTU_SPEC_TX_RETURN_CHUNK |
+ SND_MOTU_SPEC_RX_SEPARETED_MAIN,
+ .analog_in_ports = 2,
+ .analog_out_ports = 2,
+};
+
#define SND_MOTU_DEV_ENTRY(model, data) \
{ \
.match_flags = IEEE1394_MATCH_VENDOR_ID | \
- IEEE1394_MATCH_MODEL_ID | \
- IEEE1394_MATCH_SPECIFIER_ID, \
+ IEEE1394_MATCH_SPECIFIER_ID | \
+ IEEE1394_MATCH_VERSION, \
.vendor_id = OUI_MOTU, \
- .model_id = model, \
.specifier_id = OUI_MOTU, \
+ .version = model, \
.driver_data = (kernel_ulong_t)data, \
}
static const struct ieee1394_device_id motu_id_table[] = {
- SND_MOTU_DEV_ENTRY(0x101800, &motu_828mk2),
- SND_MOTU_DEV_ENTRY(0x107800, &snd_motu_spec_traveler),
- SND_MOTU_DEV_ENTRY(0x106800, &motu_828mk3), /* FireWire only. */
- SND_MOTU_DEV_ENTRY(0x100800, &motu_828mk3), /* Hybrid. */
- SND_MOTU_DEV_ENTRY(0x104800, &motu_audio_express),
+ SND_MOTU_DEV_ENTRY(0x000003, &motu_828mk2),
+ SND_MOTU_DEV_ENTRY(0x000009, &snd_motu_spec_traveler),
+ SND_MOTU_DEV_ENTRY(0x00000f, &snd_motu_spec_8pre),
+ SND_MOTU_DEV_ENTRY(0x000015, &motu_828mk3), /* FireWire only. */
+ SND_MOTU_DEV_ENTRY(0x000035, &motu_828mk3), /* Hybrid. */
+ SND_MOTU_DEV_ENTRY(0x000033, &motu_audio_express),
+ SND_MOTU_DEV_ENTRY(0x000045, &motu_4pre),
{ }
};
MODULE_DEVICE_TABLE(ieee1394, motu_id_table);
diff --git a/sound/firewire/motu/motu.h b/sound/firewire/motu/motu.h
index fd5327d..350ee2c 100644
--- a/sound/firewire/motu/motu.h
+++ b/sound/firewire/motu/motu.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* motu.h - a part of driver for MOTU FireWire series
*
* Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#ifndef SOUND_FIREWIRE_MOTU_H_INCLUDED
@@ -60,8 +59,7 @@
struct amdtp_stream rx_stream;
struct fw_iso_resources tx_resources;
struct fw_iso_resources rx_resources;
- unsigned int capture_substreams;
- unsigned int playback_substreams;
+ unsigned int substreams_counter;
/* For notification. */
struct fw_address_handler async_handler;
@@ -71,6 +69,8 @@
int dev_lock_count;
bool dev_lock_changed;
wait_queue_head_t hwdep_wait;
+
+ struct amdtp_domain domain;
};
enum snd_motu_spec_flags {
@@ -130,6 +130,7 @@
extern const struct snd_motu_protocol snd_motu_protocol_v3;
extern const struct snd_motu_spec snd_motu_spec_traveler;
+extern const struct snd_motu_spec snd_motu_spec_8pre;
int amdtp_motu_init(struct amdtp_stream *s, struct fw_unit *unit,
enum amdtp_stream_direction dir,
@@ -153,7 +154,8 @@
int snd_motu_stream_init_duplex(struct snd_motu *motu);
void snd_motu_stream_destroy_duplex(struct snd_motu *motu);
int snd_motu_stream_cache_packet_formats(struct snd_motu *motu);
-int snd_motu_stream_start_duplex(struct snd_motu *motu, unsigned int rate);
+int snd_motu_stream_reserve_duplex(struct snd_motu *motu, unsigned int rate);
+int snd_motu_stream_start_duplex(struct snd_motu *motu);
void snd_motu_stream_stop_duplex(struct snd_motu *motu);
int snd_motu_stream_lock_try(struct snd_motu *motu);
void snd_motu_stream_lock_release(struct snd_motu *motu);
diff --git a/sound/firewire/oxfw/Makefile b/sound/firewire/oxfw/Makefile
index b474da7..669d1e8 100644
--- a/sound/firewire/oxfw/Makefile
+++ b/sound/firewire/oxfw/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
snd-oxfw-objs := oxfw-command.o oxfw-stream.o oxfw-pcm.o oxfw-proc.o \
oxfw-midi.o oxfw-hwdep.o oxfw-spkr.o oxfw-scs1x.o oxfw.o
obj-$(CONFIG_SND_OXFW) += snd-oxfw.o
diff --git a/sound/firewire/oxfw/oxfw-command.c b/sound/firewire/oxfw/oxfw-command.c
index ac3e2e3..16dc337 100644
--- a/sound/firewire/oxfw/oxfw-command.c
+++ b/sound/firewire/oxfw/oxfw-command.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* oxfw_command.c - a part of driver for OXFW970/971 based devices
*
* Copyright (c) 2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "oxfw.h"
diff --git a/sound/firewire/oxfw/oxfw-hwdep.c b/sound/firewire/oxfw/oxfw-hwdep.c
index 50a1c03..eba33d0 100644
--- a/sound/firewire/oxfw/oxfw-hwdep.c
+++ b/sound/firewire/oxfw/oxfw-hwdep.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* oxfw_hwdep.c - a part of driver for OXFW970/971 based devices
*
* Copyright (c) 2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
/*
diff --git a/sound/firewire/oxfw/oxfw-midi.c b/sound/firewire/oxfw/oxfw-midi.c
index b7bbd77..9bdec08 100644
--- a/sound/firewire/oxfw/oxfw-midi.c
+++ b/sound/firewire/oxfw/oxfw-midi.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* oxfw_midi.c - a part of driver for OXFW970/971 based devices
*
* Copyright (c) 2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "oxfw.h"
@@ -19,8 +18,13 @@
mutex_lock(&oxfw->mutex);
- oxfw->capture_substreams++;
- err = snd_oxfw_stream_start_simplex(oxfw, &oxfw->tx_stream, 0, 0);
+ err = snd_oxfw_stream_reserve_duplex(oxfw, &oxfw->tx_stream, 0, 0);
+ if (err >= 0) {
+ ++oxfw->substreams_count;
+ err = snd_oxfw_stream_start_duplex(oxfw);
+ if (err < 0)
+ --oxfw->substreams_count;
+ }
mutex_unlock(&oxfw->mutex);
@@ -41,8 +45,11 @@
mutex_lock(&oxfw->mutex);
- oxfw->playback_substreams++;
- err = snd_oxfw_stream_start_simplex(oxfw, &oxfw->rx_stream, 0, 0);
+ err = snd_oxfw_stream_reserve_duplex(oxfw, &oxfw->rx_stream, 0, 0);
+ if (err >= 0) {
+ ++oxfw->substreams_count;
+ err = snd_oxfw_stream_start_duplex(oxfw);
+ }
mutex_unlock(&oxfw->mutex);
@@ -58,8 +65,8 @@
mutex_lock(&oxfw->mutex);
- oxfw->capture_substreams--;
- snd_oxfw_stream_stop_simplex(oxfw, &oxfw->tx_stream);
+ --oxfw->substreams_count;
+ snd_oxfw_stream_stop_duplex(oxfw);
mutex_unlock(&oxfw->mutex);
@@ -73,8 +80,8 @@
mutex_lock(&oxfw->mutex);
- oxfw->playback_substreams--;
- snd_oxfw_stream_stop_simplex(oxfw, &oxfw->rx_stream);
+ --oxfw->substreams_count;
+ snd_oxfw_stream_stop_duplex(oxfw);
mutex_unlock(&oxfw->mutex);
diff --git a/sound/firewire/oxfw/oxfw-pcm.c b/sound/firewire/oxfw/oxfw-pcm.c
index b3f6503..7c6d1c2 100644
--- a/sound/firewire/oxfw/oxfw-pcm.c
+++ b/sound/firewire/oxfw/oxfw-pcm.c
@@ -1,8 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* oxfw_pcm.c - a part of driver for OXFW970/971 based devices
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "oxfw.h"
@@ -219,12 +219,18 @@
return err;
if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
+ unsigned int rate = params_rate(hw_params);
+ unsigned int channels = params_channels(hw_params);
+
mutex_lock(&oxfw->mutex);
- oxfw->capture_substreams++;
+ err = snd_oxfw_stream_reserve_duplex(oxfw, &oxfw->tx_stream,
+ rate, channels);
+ if (err >= 0)
+ ++oxfw->substreams_count;
mutex_unlock(&oxfw->mutex);
}
- return 0;
+ return err;
}
static int pcm_playback_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
@@ -238,8 +244,14 @@
return err;
if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
+ unsigned int rate = params_rate(hw_params);
+ unsigned int channels = params_channels(hw_params);
+
mutex_lock(&oxfw->mutex);
- oxfw->playback_substreams++;
+ err = snd_oxfw_stream_reserve_duplex(oxfw, &oxfw->rx_stream,
+ rate, channels);
+ if (err >= 0)
+ ++oxfw->substreams_count;
mutex_unlock(&oxfw->mutex);
}
@@ -253,9 +265,9 @@
mutex_lock(&oxfw->mutex);
if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN)
- oxfw->capture_substreams--;
+ --oxfw->substreams_count;
- snd_oxfw_stream_stop_simplex(oxfw, &oxfw->tx_stream);
+ snd_oxfw_stream_stop_duplex(oxfw);
mutex_unlock(&oxfw->mutex);
@@ -268,9 +280,9 @@
mutex_lock(&oxfw->mutex);
if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN)
- oxfw->playback_substreams--;
+ --oxfw->substreams_count;
- snd_oxfw_stream_stop_simplex(oxfw, &oxfw->rx_stream);
+ snd_oxfw_stream_stop_duplex(oxfw);
mutex_unlock(&oxfw->mutex);
@@ -280,12 +292,10 @@
static int pcm_capture_prepare(struct snd_pcm_substream *substream)
{
struct snd_oxfw *oxfw = substream->private_data;
- struct snd_pcm_runtime *runtime = substream->runtime;
int err;
mutex_lock(&oxfw->mutex);
- err = snd_oxfw_stream_start_simplex(oxfw, &oxfw->tx_stream,
- runtime->rate, runtime->channels);
+ err = snd_oxfw_stream_start_duplex(oxfw);
mutex_unlock(&oxfw->mutex);
if (err < 0)
goto end;
@@ -297,12 +307,10 @@
static int pcm_playback_prepare(struct snd_pcm_substream *substream)
{
struct snd_oxfw *oxfw = substream->private_data;
- struct snd_pcm_runtime *runtime = substream->runtime;
int err;
mutex_lock(&oxfw->mutex);
- err = snd_oxfw_stream_start_simplex(oxfw, &oxfw->rx_stream,
- runtime->rate, runtime->channels);
+ err = snd_oxfw_stream_start_duplex(oxfw);
mutex_unlock(&oxfw->mutex);
if (err < 0)
goto end;
diff --git a/sound/firewire/oxfw/oxfw-proc.c b/sound/firewire/oxfw/oxfw-proc.c
index 27dac07..260c603 100644
--- a/sound/firewire/oxfw/oxfw-proc.c
+++ b/sound/firewire/oxfw/oxfw-proc.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* oxfw_proc.c - a part of driver for OXFW970/971 based devices
*
* Copyright (c) 2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "./oxfw.h"
@@ -83,12 +82,8 @@
struct snd_info_entry *entry;
entry = snd_info_create_card_entry(oxfw->card, name, root);
- if (entry == NULL)
- return;
-
- snd_info_set_text_ops(entry, oxfw, op);
- if (snd_info_register(entry) < 0)
- snd_info_free_entry(entry);
+ if (entry)
+ snd_info_set_text_ops(entry, oxfw, op);
}
void snd_oxfw_proc_init(struct snd_oxfw *oxfw)
@@ -104,10 +99,6 @@
if (root == NULL)
return;
root->mode = S_IFDIR | 0555;
- if (snd_info_register(root) < 0) {
- snd_info_free_entry(root);
- return;
- }
add_node(oxfw, root, "formation", proc_read_formation);
}
diff --git a/sound/firewire/oxfw/oxfw-scs1x.c b/sound/firewire/oxfw/oxfw-scs1x.c
index f33497c..21412a3 100644
--- a/sound/firewire/oxfw/oxfw-scs1x.c
+++ b/sound/firewire/oxfw/oxfw-scs1x.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* oxfw-scs1x.c - a part of driver for OXFW970/971 based devices
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
* Copyright (c) 2015 Takashi Sakamoto <o-takashi@sakamocchi.jp>
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "oxfw.h"
@@ -372,8 +371,9 @@
struct fw_scs1x *scs;
int err;
- scs = kzalloc(sizeof(struct fw_scs1x), GFP_KERNEL);
- if (scs == NULL)
+ scs = devm_kzalloc(&oxfw->card->card_dev, sizeof(struct fw_scs1x),
+ GFP_KERNEL);
+ if (!scs)
return -ENOMEM;
scs->fw_dev = fw_parent_device(oxfw->unit);
oxfw->spec = scs;
diff --git a/sound/firewire/oxfw/oxfw-spkr.c b/sound/firewire/oxfw/oxfw-spkr.c
index cb905af..f2767fb 100644
--- a/sound/firewire/oxfw/oxfw-spkr.c
+++ b/sound/firewire/oxfw/oxfw-spkr.c
@@ -1,8 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* oxfw-spkr.c - a part of driver for OXFW970/971 based devices
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "oxfw.h"
@@ -270,8 +270,9 @@
unsigned int i, first_ch;
int err;
- spkr = kzalloc(sizeof(struct fw_spkr), GFP_KERNEL);
- if (spkr == NULL)
+ spkr = devm_kzalloc(&oxfw->card->card_dev, sizeof(struct fw_spkr),
+ GFP_KERNEL);
+ if (!spkr)
return -ENOMEM;
oxfw->spec = spkr;
diff --git a/sound/firewire/oxfw/oxfw-stream.c b/sound/firewire/oxfw/oxfw-stream.c
index d9361f3..3c9a796 100644
--- a/sound/firewire/oxfw/oxfw-stream.c
+++ b/sound/firewire/oxfw/oxfw-stream.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* oxfw_stream.c - a part of driver for OXFW970/971 based devices
*
* Copyright (c) 2014 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "oxfw.h"
@@ -101,85 +100,28 @@
return 0;
}
-static void stop_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream)
+static int start_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream)
{
- amdtp_stream_pcm_abort(stream);
- amdtp_stream_stop(stream);
-
- if (stream == &oxfw->tx_stream)
- cmp_connection_break(&oxfw->out_conn);
- else
- cmp_connection_break(&oxfw->in_conn);
-}
-
-static int start_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream,
- unsigned int rate, unsigned int pcm_channels)
-{
- u8 **formats;
struct cmp_connection *conn;
- struct snd_oxfw_stream_formation formation;
- unsigned int i, midi_ports;
int err;
- if (stream == &oxfw->rx_stream) {
- formats = oxfw->rx_stream_formats;
+ if (stream == &oxfw->rx_stream)
conn = &oxfw->in_conn;
- } else {
- formats = oxfw->tx_stream_formats;
+ else
conn = &oxfw->out_conn;
- }
- /* Get stream format */
- for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) {
- if (formats[i] == NULL)
- break;
-
- err = snd_oxfw_stream_parse_format(formats[i], &formation);
- if (err < 0)
- goto end;
- if (rate != formation.rate)
- continue;
- if (pcm_channels == 0 || pcm_channels == formation.pcm)
- break;
- }
- if (i == SND_OXFW_STREAM_FORMAT_ENTRIES) {
- err = -EINVAL;
- goto end;
- }
-
- pcm_channels = formation.pcm;
- midi_ports = formation.midi * 8;
-
- /* The stream should have one pcm channels at least */
- if (pcm_channels == 0) {
- err = -EINVAL;
- goto end;
- }
- err = amdtp_am824_set_parameters(stream, rate, pcm_channels, midi_ports,
- false);
+ err = cmp_connection_establish(conn);
if (err < 0)
- goto end;
+ return err;
- err = cmp_connection_establish(conn,
- amdtp_stream_get_max_payload(stream));
- if (err < 0)
- goto end;
-
- err = amdtp_stream_start(stream,
- conn->resources.channel,
- conn->speed);
+ err = amdtp_domain_add_stream(&oxfw->domain, stream,
+ conn->resources.channel, conn->speed);
if (err < 0) {
cmp_connection_break(conn);
- goto end;
+ return err;
}
- /* Wait first packet */
- if (!amdtp_stream_wait_callback(stream, CALLBACK_TIMEOUT)) {
- stop_stream(oxfw, stream);
- err = -ETIMEDOUT;
- }
-end:
- return err;
+ return 0;
}
static int check_connection_used_by_others(struct snd_oxfw *oxfw,
@@ -206,8 +148,7 @@
return err;
}
-int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw,
- struct amdtp_stream *stream)
+static int init_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream)
{
struct cmp_connection *conn;
enum cmp_direction c_dir;
@@ -226,13 +167,12 @@
err = cmp_connection_init(conn, oxfw->unit, c_dir, 0);
if (err < 0)
- goto end;
+ return err;
err = amdtp_am824_init(stream, oxfw->unit, s_dir, CIP_NONBLOCKING);
if (err < 0) {
- amdtp_stream_destroy(stream);
cmp_connection_destroy(conn);
- goto end;
+ return err;
}
/*
@@ -246,115 +186,211 @@
if (oxfw->wrong_dbs)
oxfw->tx_stream.flags |= CIP_WRONG_DBS;
}
-end:
- return err;
+
+ return 0;
}
-int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw,
- struct amdtp_stream *stream,
- unsigned int rate, unsigned int pcm_channels)
+static int keep_resources(struct snd_oxfw *oxfw, struct amdtp_stream *stream)
{
- struct amdtp_stream *opposite;
- struct snd_oxfw_stream_formation formation;
enum avc_general_plug_dir dir;
- unsigned int substreams, opposite_substreams;
- int err = 0;
+ u8 **formats;
+ struct snd_oxfw_stream_formation formation;
+ struct cmp_connection *conn;
+ int i;
+ int err;
- if (stream == &oxfw->tx_stream) {
- substreams = oxfw->capture_substreams;
- opposite = &oxfw->rx_stream;
- opposite_substreams = oxfw->playback_substreams;
- dir = AVC_GENERAL_PLUG_DIR_OUT;
- } else {
- substreams = oxfw->playback_substreams;
- opposite_substreams = oxfw->capture_substreams;
-
- if (oxfw->has_output)
- opposite = &oxfw->rx_stream;
- else
- opposite = NULL;
-
+ if (stream == &oxfw->rx_stream) {
dir = AVC_GENERAL_PLUG_DIR_IN;
+ formats = oxfw->rx_stream_formats;
+ conn = &oxfw->in_conn;
+ } else {
+ dir = AVC_GENERAL_PLUG_DIR_OUT;
+ formats = oxfw->tx_stream_formats;
+ conn = &oxfw->out_conn;
}
- if (substreams == 0)
- goto end;
-
- /*
- * Considering JACK/FFADO streaming:
- * TODO: This can be removed hwdep functionality becomes popular.
- */
- err = check_connection_used_by_others(oxfw, stream);
- if (err < 0)
- goto end;
-
- /* packet queueing error */
- if (amdtp_streaming_error(stream))
- stop_stream(oxfw, stream);
-
err = snd_oxfw_stream_get_current_formation(oxfw, dir, &formation);
if (err < 0)
- goto end;
- if (rate == 0)
+ return err;
+
+ for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) {
+ struct snd_oxfw_stream_formation fmt;
+
+ if (formats[i] == NULL)
+ break;
+
+ err = snd_oxfw_stream_parse_format(formats[i], &fmt);
+ if (err < 0)
+ return err;
+
+ if (fmt.rate == formation.rate && fmt.pcm == formation.pcm &&
+ fmt.midi == formation.midi)
+ break;
+ }
+ if (i == SND_OXFW_STREAM_FORMAT_ENTRIES)
+ return -EINVAL;
+
+ // The stream should have one pcm channels at least.
+ if (formation.pcm == 0)
+ return -EINVAL;
+
+ err = amdtp_am824_set_parameters(stream, formation.rate, formation.pcm,
+ formation.midi * 8, false);
+ if (err < 0)
+ return err;
+
+ return cmp_connection_reserve(conn, amdtp_stream_get_max_payload(stream));
+}
+
+int snd_oxfw_stream_reserve_duplex(struct snd_oxfw *oxfw,
+ struct amdtp_stream *stream,
+ unsigned int rate, unsigned int pcm_channels)
+{
+ struct snd_oxfw_stream_formation formation;
+ enum avc_general_plug_dir dir;
+ int err;
+
+ // Considering JACK/FFADO streaming:
+ // TODO: This can be removed hwdep functionality becomes popular.
+ err = check_connection_used_by_others(oxfw, &oxfw->rx_stream);
+ if (err < 0)
+ return err;
+ if (oxfw->has_output) {
+ err = check_connection_used_by_others(oxfw, &oxfw->tx_stream);
+ if (err < 0)
+ return err;
+ }
+
+ if (stream == &oxfw->tx_stream)
+ dir = AVC_GENERAL_PLUG_DIR_OUT;
+ else
+ dir = AVC_GENERAL_PLUG_DIR_IN;
+
+ err = snd_oxfw_stream_get_current_formation(oxfw, dir, &formation);
+ if (err < 0)
+ return err;
+ if (rate == 0) {
rate = formation.rate;
- if (pcm_channels == 0)
pcm_channels = formation.pcm;
+ }
+ if (formation.rate != rate || formation.pcm != pcm_channels) {
+ amdtp_domain_stop(&oxfw->domain);
- if ((formation.rate != rate) || (formation.pcm != pcm_channels)) {
- if (opposite != NULL) {
- err = check_connection_used_by_others(oxfw, opposite);
- if (err < 0)
- goto end;
- stop_stream(oxfw, opposite);
+ cmp_connection_break(&oxfw->in_conn);
+ cmp_connection_release(&oxfw->in_conn);
+
+ if (oxfw->has_output) {
+ cmp_connection_break(&oxfw->out_conn);
+ cmp_connection_release(&oxfw->out_conn);
}
- stop_stream(oxfw, stream);
+ }
+ if (oxfw->substreams_count == 0 ||
+ formation.rate != rate || formation.pcm != pcm_channels) {
err = set_stream_format(oxfw, stream, rate, pcm_channels);
if (err < 0) {
dev_err(&oxfw->unit->device,
"fail to set stream format: %d\n", err);
- goto end;
+ return err;
}
- /* Start opposite stream if needed. */
- if (opposite && !amdtp_stream_running(opposite) &&
- (opposite_substreams > 0)) {
- err = start_stream(oxfw, opposite, rate, 0);
+ err = keep_resources(oxfw, &oxfw->rx_stream);
+ if (err < 0)
+ return err;
+
+ if (oxfw->has_output) {
+ err = keep_resources(oxfw, &oxfw->tx_stream);
if (err < 0) {
- dev_err(&oxfw->unit->device,
- "fail to restart stream: %d\n", err);
- goto end;
+ cmp_connection_release(&oxfw->in_conn);
+ return err;
}
}
}
- /* Start requested stream. */
- if (!amdtp_stream_running(stream)) {
- err = start_stream(oxfw, stream, rate, pcm_channels);
- if (err < 0)
- dev_err(&oxfw->unit->device,
- "fail to start stream: %d\n", err);
+ return 0;
+}
+
+int snd_oxfw_stream_start_duplex(struct snd_oxfw *oxfw)
+{
+ int err;
+
+ if (oxfw->substreams_count == 0)
+ return -EIO;
+
+ if (amdtp_streaming_error(&oxfw->rx_stream) ||
+ amdtp_streaming_error(&oxfw->tx_stream)) {
+ amdtp_domain_stop(&oxfw->domain);
+
+ cmp_connection_break(&oxfw->in_conn);
+ if (oxfw->has_output)
+ cmp_connection_break(&oxfw->out_conn);
}
-end:
+
+ if (!amdtp_stream_running(&oxfw->rx_stream)) {
+ err = start_stream(oxfw, &oxfw->rx_stream);
+ if (err < 0) {
+ dev_err(&oxfw->unit->device,
+ "fail to prepare rx stream: %d\n", err);
+ goto error;
+ }
+
+ if (oxfw->has_output &&
+ !amdtp_stream_running(&oxfw->tx_stream)) {
+ err = start_stream(oxfw, &oxfw->tx_stream);
+ if (err < 0) {
+ dev_err(&oxfw->unit->device,
+ "fail to prepare tx stream: %d\n", err);
+ goto error;
+ }
+ }
+
+ err = amdtp_domain_start(&oxfw->domain);
+ if (err < 0)
+ goto error;
+
+ // Wait first packet.
+ if (!amdtp_stream_wait_callback(&oxfw->rx_stream,
+ CALLBACK_TIMEOUT)) {
+ err = -ETIMEDOUT;
+ goto error;
+ }
+
+ if (oxfw->has_output) {
+ if (!amdtp_stream_wait_callback(&oxfw->tx_stream,
+ CALLBACK_TIMEOUT)) {
+ err = -ETIMEDOUT;
+ goto error;
+ }
+ }
+ }
+
+ return 0;
+error:
+ amdtp_domain_stop(&oxfw->domain);
+
+ cmp_connection_break(&oxfw->in_conn);
+ if (oxfw->has_output)
+ cmp_connection_break(&oxfw->out_conn);
+
return err;
}
-void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw,
- struct amdtp_stream *stream)
+void snd_oxfw_stream_stop_duplex(struct snd_oxfw *oxfw)
{
- if (((stream == &oxfw->tx_stream) && (oxfw->capture_substreams > 0)) ||
- ((stream == &oxfw->rx_stream) && (oxfw->playback_substreams > 0)))
- return;
+ if (oxfw->substreams_count == 0) {
+ amdtp_domain_stop(&oxfw->domain);
- stop_stream(oxfw, stream);
+ cmp_connection_break(&oxfw->in_conn);
+ cmp_connection_release(&oxfw->in_conn);
+
+ if (oxfw->has_output) {
+ cmp_connection_break(&oxfw->out_conn);
+ cmp_connection_release(&oxfw->out_conn);
+ }
+ }
}
-/*
- * This function should be called before starting the stream or after stopping
- * the streams.
- */
-void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw,
- struct amdtp_stream *stream)
+static void destroy_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream)
{
struct cmp_connection *conn;
@@ -367,20 +403,57 @@
cmp_connection_destroy(conn);
}
-void snd_oxfw_stream_update_simplex(struct snd_oxfw *oxfw,
- struct amdtp_stream *stream)
+int snd_oxfw_stream_init_duplex(struct snd_oxfw *oxfw)
{
- struct cmp_connection *conn;
+ int err;
- if (stream == &oxfw->tx_stream)
- conn = &oxfw->out_conn;
- else
- conn = &oxfw->in_conn;
+ err = init_stream(oxfw, &oxfw->rx_stream);
+ if (err < 0)
+ return err;
- if (cmp_connection_update(conn) < 0)
- stop_stream(oxfw, stream);
- else
- amdtp_stream_update(stream);
+ if (oxfw->has_output) {
+ err = init_stream(oxfw, &oxfw->tx_stream);
+ if (err < 0) {
+ destroy_stream(oxfw, &oxfw->rx_stream);
+ return err;
+ }
+ }
+
+ err = amdtp_domain_init(&oxfw->domain);
+ if (err < 0) {
+ destroy_stream(oxfw, &oxfw->rx_stream);
+ if (oxfw->has_output)
+ destroy_stream(oxfw, &oxfw->tx_stream);
+ }
+
+ return err;
+}
+
+// This function should be called before starting the stream or after stopping
+// the streams.
+void snd_oxfw_stream_destroy_duplex(struct snd_oxfw *oxfw)
+{
+ amdtp_domain_destroy(&oxfw->domain);
+
+ destroy_stream(oxfw, &oxfw->rx_stream);
+
+ if (oxfw->has_output)
+ destroy_stream(oxfw, &oxfw->tx_stream);
+}
+
+void snd_oxfw_stream_update_duplex(struct snd_oxfw *oxfw)
+{
+ amdtp_domain_stop(&oxfw->domain);
+
+ cmp_connection_break(&oxfw->in_conn);
+
+ amdtp_stream_pcm_abort(&oxfw->rx_stream);
+
+ if (oxfw->has_output) {
+ cmp_connection_break(&oxfw->out_conn);
+
+ amdtp_stream_pcm_abort(&oxfw->tx_stream);
+ }
}
int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw,
@@ -517,8 +590,9 @@
if (err < 0)
goto end;
- formats[eid] = kmemdup(buf, *len, GFP_KERNEL);
- if (formats[eid] == NULL) {
+ formats[eid] = devm_kmemdup(&oxfw->card->card_dev, buf, *len,
+ GFP_KERNEL);
+ if (!formats[eid]) {
err = -ENOMEM;
goto end;
}
@@ -535,7 +609,8 @@
continue;
eid++;
- formats[eid] = kmemdup(buf, *len, GFP_KERNEL);
+ formats[eid] = devm_kmemdup(&oxfw->card->card_dev, buf, *len,
+ GFP_KERNEL);
if (formats[eid] == NULL) {
err = -ENOMEM;
goto end;
@@ -597,8 +672,9 @@
if (err < 0)
break;
- formats[eid] = kmemdup(buf, len, GFP_KERNEL);
- if (formats[eid] == NULL) {
+ formats[eid] = devm_kmemdup(&oxfw->card->card_dev, buf, len,
+ GFP_KERNEL);
+ if (!formats[eid]) {
err = -ENOMEM;
break;
}
diff --git a/sound/firewire/oxfw/oxfw.c b/sound/firewire/oxfw/oxfw.c
index 2ea8be6..fb6df3f 100644
--- a/sound/firewire/oxfw/oxfw.c
+++ b/sound/firewire/oxfw/oxfw.c
@@ -1,8 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* oxfw.c - a part of driver for OXFW970/971 based devices
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "oxfw.h"
@@ -20,6 +20,7 @@
#define VENDOR_LACIE 0x00d04b
#define VENDOR_TASCAM 0x00022e
#define OUI_STANTON 0x001260
+#define OUI_APOGEE 0x0003db
#define MODEL_SATELLITE 0x00200f
@@ -113,35 +114,11 @@
return err;
}
-static void oxfw_free(struct snd_oxfw *oxfw)
-{
- unsigned int i;
-
- snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->rx_stream);
- if (oxfw->has_output)
- snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->tx_stream);
-
- fw_unit_put(oxfw->unit);
-
- for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) {
- kfree(oxfw->tx_stream_formats[i]);
- kfree(oxfw->rx_stream_formats[i]);
- }
-
- kfree(oxfw->spec);
- mutex_destroy(&oxfw->mutex);
- kfree(oxfw);
-}
-
-/*
- * This module releases the FireWire unit data after all ALSA character devices
- * are released by applications. This is for releasing stream data or finishing
- * transactions safely. Thus at returning from .remove(), this module still keep
- * references for the unit.
- */
static void oxfw_card_free(struct snd_card *card)
{
- oxfw_free(card->private_data);
+ struct snd_oxfw *oxfw = card->private_data;
+
+ snd_oxfw_stream_destroy_duplex(oxfw);
}
static int detect_quirks(struct snd_oxfw *oxfw)
@@ -169,9 +146,6 @@
oxfw->midi_input_ports = 0;
oxfw->midi_output_ports = 0;
- /* Output stream exists but no data channels are useful. */
- oxfw->has_output = false;
-
return snd_oxfw_scs1x_add(oxfw);
}
@@ -208,7 +182,6 @@
static void do_registration(struct work_struct *work)
{
struct snd_oxfw *oxfw = container_of(work, struct snd_oxfw, dwork.work);
- int i;
int err;
if (oxfw->registered)
@@ -218,6 +191,8 @@
&oxfw->card);
if (err < 0)
return;
+ oxfw->card->private_free = oxfw_card_free;
+ oxfw->card->private_data = oxfw;
err = name_card(oxfw);
if (err < 0)
@@ -231,14 +206,9 @@
if (err < 0)
goto error;
- err = snd_oxfw_stream_init_simplex(oxfw, &oxfw->rx_stream);
+ err = snd_oxfw_stream_init_duplex(oxfw);
if (err < 0)
goto error;
- if (oxfw->has_output) {
- err = snd_oxfw_stream_init_simplex(oxfw, &oxfw->tx_stream);
- if (err < 0)
- goto error;
- }
err = snd_oxfw_create_pcm(oxfw);
if (err < 0)
@@ -258,28 +228,11 @@
if (err < 0)
goto error;
- /*
- * After registered, oxfw instance can be released corresponding to
- * releasing the sound card instance.
- */
- oxfw->card->private_free = oxfw_card_free;
- oxfw->card->private_data = oxfw;
oxfw->registered = true;
return;
error:
- snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->rx_stream);
- if (oxfw->has_output)
- snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->tx_stream);
- for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; ++i) {
- kfree(oxfw->tx_stream_formats[i]);
- oxfw->tx_stream_formats[i] = NULL;
- kfree(oxfw->rx_stream_formats[i]);
- oxfw->rx_stream_formats[i] = NULL;
- }
snd_card_free(oxfw->card);
- kfree(oxfw->spec);
- oxfw->spec = NULL;
dev_info(&oxfw->unit->device,
"Sound card registration failed: %d\n", err);
}
@@ -293,14 +246,13 @@
return -ENODEV;
/* Allocate this independent of sound card instance. */
- oxfw = kzalloc(sizeof(struct snd_oxfw), GFP_KERNEL);
- if (oxfw == NULL)
+ oxfw = devm_kzalloc(&unit->device, sizeof(struct snd_oxfw), GFP_KERNEL);
+ if (!oxfw)
return -ENOMEM;
-
- oxfw->entry = entry;
oxfw->unit = fw_unit_get(unit);
dev_set_drvdata(&unit->device, oxfw);
+ oxfw->entry = entry;
mutex_init(&oxfw->mutex);
spin_lock_init(&oxfw->lock);
init_waitqueue_head(&oxfw->hwdep_wait);
@@ -323,11 +275,7 @@
if (oxfw->registered) {
mutex_lock(&oxfw->mutex);
-
- snd_oxfw_stream_update_simplex(oxfw, &oxfw->rx_stream);
- if (oxfw->has_output)
- snd_oxfw_stream_update_simplex(oxfw, &oxfw->tx_stream);
-
+ snd_oxfw_stream_update_duplex(oxfw);
mutex_unlock(&oxfw->mutex);
if (oxfw->entry->vendor_id == OUI_STANTON)
@@ -347,12 +295,12 @@
cancel_delayed_work_sync(&oxfw->dwork);
if (oxfw->registered) {
- /* No need to wait for releasing card object in this context. */
- snd_card_free_when_closed(oxfw->card);
- } else {
- /* Don't forget this case. */
- oxfw_free(oxfw);
+ // Block till all of ALSA character devices are released.
+ snd_card_free(oxfw->card);
}
+
+ mutex_destroy(&oxfw->mutex);
+ fw_unit_put(oxfw->unit);
}
static const struct compat_info griffin_firewave = {
@@ -436,6 +384,13 @@
.vendor_id = OUI_STANTON,
.model_id = 0x002000,
},
+ // APOGEE, duet FireWire
+ {
+ .match_flags = IEEE1394_MATCH_VENDOR_ID |
+ IEEE1394_MATCH_MODEL_ID,
+ .vendor_id = OUI_APOGEE,
+ .model_id = 0x01dddd,
+ },
{ }
};
MODULE_DEVICE_TABLE(ieee1394, oxfw_id_table);
diff --git a/sound/firewire/oxfw/oxfw.h b/sound/firewire/oxfw/oxfw.h
index d54d4a9..c9627b8 100644
--- a/sound/firewire/oxfw/oxfw.h
+++ b/sound/firewire/oxfw/oxfw.h
@@ -1,8 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* oxfw.h - a part of driver for OXFW970/971 based devices
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include <linux/device.h>
@@ -52,8 +52,7 @@
struct cmp_connection in_conn;
struct amdtp_stream tx_stream;
struct amdtp_stream rx_stream;
- unsigned int capture_substreams;
- unsigned int playback_substreams;
+ unsigned int substreams_count;
unsigned int midi_input_ports;
unsigned int midi_output_ports;
@@ -64,6 +63,8 @@
const struct ieee1394_device_id *entry;
void *spec;
+
+ struct amdtp_domain domain;
};
/*
@@ -99,17 +100,14 @@
enum avc_general_plug_dir dir,
unsigned short pid);
-int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw,
- struct amdtp_stream *stream);
-int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw,
- struct amdtp_stream *stream,
- unsigned int rate, unsigned int pcm_channels);
-void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw,
- struct amdtp_stream *stream);
-void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw,
- struct amdtp_stream *stream);
-void snd_oxfw_stream_update_simplex(struct snd_oxfw *oxfw,
- struct amdtp_stream *stream);
+int snd_oxfw_stream_init_duplex(struct snd_oxfw *oxfw);
+int snd_oxfw_stream_reserve_duplex(struct snd_oxfw *oxfw,
+ struct amdtp_stream *stream,
+ unsigned int rate, unsigned int pcm_channels);
+int snd_oxfw_stream_start_duplex(struct snd_oxfw *oxfw);
+void snd_oxfw_stream_stop_duplex(struct snd_oxfw *oxfw);
+void snd_oxfw_stream_destroy_duplex(struct snd_oxfw *oxfw);
+void snd_oxfw_stream_update_duplex(struct snd_oxfw *oxfw);
struct snd_oxfw_stream_formation {
unsigned int rate;
diff --git a/sound/firewire/packets-buffer.c b/sound/firewire/packets-buffer.c
index 1ebf00c..0ecafd0 100644
--- a/sound/firewire/packets-buffer.c
+++ b/sound/firewire/packets-buffer.c
@@ -1,8 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* helpers for managing a buffer for many packets
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include <linux/firewire.h>
@@ -37,7 +37,7 @@
packets_per_page = PAGE_SIZE / packet_size;
if (WARN_ON(!packets_per_page)) {
err = -EINVAL;
- goto error;
+ goto err_packets;
}
pages = DIV_ROUND_UP(count, packets_per_page);
diff --git a/sound/firewire/tascam/Makefile b/sound/firewire/tascam/Makefile
index 0fc955d..a1d21f2 100644
--- a/sound/firewire/tascam/Makefile
+++ b/sound/firewire/tascam/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
snd-firewire-tascam-objs := tascam-proc.o amdtp-tascam.o tascam-stream.o \
tascam-pcm.o tascam-hwdep.o tascam-transaction.o \
tascam-midi.o tascam.o
diff --git a/sound/firewire/tascam/amdtp-tascam.c b/sound/firewire/tascam/amdtp-tascam.c
index ab48242..e80bb84 100644
--- a/sound/firewire/tascam/amdtp-tascam.c
+++ b/sound/firewire/tascam/amdtp-tascam.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* amdtp-tascam.c - a part of driver for TASCAM FireWire series
*
* Copyright (c) 2015 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include <sound/pcm.h>
@@ -33,19 +32,24 @@
return amdtp_stream_set_parameters(s, rate, data_channels);
}
-static void write_pcm_s32(struct amdtp_stream *s,
- struct snd_pcm_substream *pcm,
- __be32 *buffer, unsigned int frames)
+static void write_pcm_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm,
+ __be32 *buffer, unsigned int frames,
+ unsigned int pcm_frames)
{
struct amdtp_tscm *p = s->protocol;
+ unsigned int channels = p->pcm_channels;
struct snd_pcm_runtime *runtime = pcm->runtime;
- unsigned int channels, remaining_frames, i, c;
+ unsigned int pcm_buffer_pointer;
+ int remaining_frames;
const u32 *src;
+ int i, c;
- channels = p->pcm_channels;
+ pcm_buffer_pointer = s->pcm_buffer_pointer + pcm_frames;
+ pcm_buffer_pointer %= runtime->buffer_size;
+
src = (void *)runtime->dma_area +
- frames_to_bytes(runtime, s->pcm_buffer_pointer);
- remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
+ frames_to_bytes(runtime, pcm_buffer_pointer);
+ remaining_frames = runtime->buffer_size - pcm_buffer_pointer;
for (i = 0; i < frames; ++i) {
for (c = 0; c < channels; ++c) {
@@ -58,19 +62,24 @@
}
}
-static void read_pcm_s32(struct amdtp_stream *s,
- struct snd_pcm_substream *pcm,
- __be32 *buffer, unsigned int frames)
+static void read_pcm_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm,
+ __be32 *buffer, unsigned int frames,
+ unsigned int pcm_frames)
{
struct amdtp_tscm *p = s->protocol;
+ unsigned int channels = p->pcm_channels;
struct snd_pcm_runtime *runtime = pcm->runtime;
- unsigned int channels, remaining_frames, i, c;
+ unsigned int pcm_buffer_pointer;
+ int remaining_frames;
u32 *dst;
+ int i, c;
- channels = p->pcm_channels;
+ pcm_buffer_pointer = s->pcm_buffer_pointer + pcm_frames;
+ pcm_buffer_pointer %= runtime->buffer_size;
+
dst = (void *)runtime->dma_area +
- frames_to_bytes(runtime, s->pcm_buffer_pointer);
- remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
+ frames_to_bytes(runtime, pcm_buffer_pointer);
+ remaining_frames = runtime->buffer_size - pcm_buffer_pointer;
/* The first data channel is for event counter. */
buffer += 1;
@@ -117,65 +126,131 @@
return amdtp_stream_add_pcm_hw_constraints(s, runtime);
}
-static unsigned int process_tx_data_blocks(struct amdtp_stream *s,
- __be32 *buffer,
- unsigned int data_blocks,
- unsigned int *syt)
+static void read_status_messages(struct amdtp_stream *s,
+ __be32 *buffer, unsigned int data_blocks)
{
- struct snd_pcm_substream *pcm;
+ struct snd_tscm *tscm = container_of(s, struct snd_tscm, tx_stream);
+ bool used = READ_ONCE(tscm->hwdep->used);
+ int i;
- pcm = READ_ONCE(s->pcm);
- if (data_blocks > 0 && pcm)
- read_pcm_s32(s, pcm, buffer, data_blocks);
+ for (i = 0; i < data_blocks; i++) {
+ unsigned int index;
+ __be32 before;
+ __be32 after;
- /* A place holder for control messages. */
+ index = be32_to_cpu(buffer[0]) % SNDRV_FIREWIRE_TASCAM_STATE_COUNT;
+ before = tscm->state[index];
+ after = buffer[s->data_block_quadlets - 1];
- return data_blocks;
+ if (used && index > 4 && index < 16) {
+ __be32 mask;
+
+ if (index == 5)
+ mask = cpu_to_be32(~0x0000ffff);
+ else if (index == 6)
+ mask = cpu_to_be32(~0x0000ffff);
+ else if (index == 8)
+ mask = cpu_to_be32(~0x000f0f00);
+ else
+ mask = cpu_to_be32(~0x00000000);
+
+ if ((before ^ after) & mask) {
+ struct snd_firewire_tascam_change *entry =
+ &tscm->queue[tscm->push_pos];
+
+ spin_lock_irq(&tscm->lock);
+ entry->index = index;
+ entry->before = before;
+ entry->after = after;
+ if (++tscm->push_pos >= SND_TSCM_QUEUE_COUNT)
+ tscm->push_pos = 0;
+ spin_unlock_irq(&tscm->lock);
+
+ wake_up(&tscm->hwdep_wait);
+ }
+ }
+
+ tscm->state[index] = after;
+ buffer += s->data_block_quadlets;
+ }
}
-static unsigned int process_rx_data_blocks(struct amdtp_stream *s,
- __be32 *buffer,
- unsigned int data_blocks,
- unsigned int *syt)
+static unsigned int process_ir_ctx_payloads(struct amdtp_stream *s,
+ const struct pkt_desc *descs,
+ unsigned int packets,
+ struct snd_pcm_substream *pcm)
{
- struct snd_pcm_substream *pcm;
+ unsigned int pcm_frames = 0;
+ int i;
- /* This field is not used. */
- *syt = 0x0000;
+ for (i = 0; i < packets; ++i) {
+ const struct pkt_desc *desc = descs + i;
+ __be32 *buf = desc->ctx_payload;
+ unsigned int data_blocks = desc->data_blocks;
- pcm = READ_ONCE(s->pcm);
- if (pcm)
- write_pcm_s32(s, pcm, buffer, data_blocks);
- else
- write_pcm_silence(s, buffer, data_blocks);
+ if (pcm) {
+ read_pcm_s32(s, pcm, buf, data_blocks, pcm_frames);
+ pcm_frames += data_blocks;
+ }
- return data_blocks;
+ read_status_messages(s, buf, data_blocks);
+ }
+
+ return pcm_frames;
+}
+
+static unsigned int process_it_ctx_payloads(struct amdtp_stream *s,
+ const struct pkt_desc *descs,
+ unsigned int packets,
+ struct snd_pcm_substream *pcm)
+{
+ unsigned int pcm_frames = 0;
+ int i;
+
+ for (i = 0; i < packets; ++i) {
+ const struct pkt_desc *desc = descs + i;
+ __be32 *buf = desc->ctx_payload;
+ unsigned int data_blocks = desc->data_blocks;
+
+ if (pcm) {
+ write_pcm_s32(s, pcm, buf, data_blocks, pcm_frames);
+ pcm_frames += data_blocks;
+ } else {
+ write_pcm_silence(s, buf, data_blocks);
+ }
+ }
+
+ return pcm_frames;
}
int amdtp_tscm_init(struct amdtp_stream *s, struct fw_unit *unit,
enum amdtp_stream_direction dir, unsigned int pcm_channels)
{
- amdtp_stream_process_data_blocks_t process_data_blocks;
+ amdtp_stream_process_ctx_payloads_t process_ctx_payloads;
struct amdtp_tscm *p;
unsigned int fmt;
int err;
if (dir == AMDTP_IN_STREAM) {
fmt = AMDTP_FMT_TSCM_TX;
- process_data_blocks = process_tx_data_blocks;
+ process_ctx_payloads = process_ir_ctx_payloads;
} else {
fmt = AMDTP_FMT_TSCM_RX;
- process_data_blocks = process_rx_data_blocks;
+ process_ctx_payloads = process_it_ctx_payloads;
}
err = amdtp_stream_init(s, unit, dir,
- CIP_NONBLOCKING | CIP_SKIP_DBC_ZERO_CHECK, fmt,
- process_data_blocks, sizeof(struct amdtp_tscm));
+ CIP_NONBLOCKING | CIP_SKIP_DBC_ZERO_CHECK, fmt,
+ process_ctx_payloads, sizeof(struct amdtp_tscm));
if (err < 0)
return 0;
- /* Use fixed value for FDF field. */
- s->fdf = 0x00;
+ if (dir == AMDTP_OUT_STREAM) {
+ // Use fixed value for FDF field.
+ s->ctx_data.rx.fdf = 0x00;
+ // Not used.
+ s->ctx_data.rx.syt_override = 0x0000;
+ }
/* This protocol uses fixed number of data channels for PCM samples. */
p = s->protocol;
diff --git a/sound/firewire/tascam/tascam-hwdep.c b/sound/firewire/tascam/tascam-hwdep.c
index 4e4c1e9..c29a97f 100644
--- a/sound/firewire/tascam/tascam-hwdep.c
+++ b/sound/firewire/tascam/tascam-hwdep.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* tascam-hwdep.c - a part of driver for TASCAM FireWire series
*
* Copyright (c) 2015 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
/*
@@ -16,18 +15,93 @@
#include "tascam.h"
+static long tscm_hwdep_read_locked(struct snd_tscm *tscm, char __user *buf,
+ long count, loff_t *offset)
+{
+ struct snd_firewire_event_lock_status event = {
+ .type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS,
+ };
+
+ event.status = (tscm->dev_lock_count > 0);
+ tscm->dev_lock_changed = false;
+ count = min_t(long, count, sizeof(event));
+
+ spin_unlock_irq(&tscm->lock);
+
+ if (copy_to_user(buf, &event, count))
+ return -EFAULT;
+
+ return count;
+}
+
+static long tscm_hwdep_read_queue(struct snd_tscm *tscm, char __user *buf,
+ long remained, loff_t *offset)
+{
+ char __user *pos = buf;
+ unsigned int type = SNDRV_FIREWIRE_EVENT_TASCAM_CONTROL;
+ struct snd_firewire_tascam_change *entries = tscm->queue;
+ long count;
+
+ // At least, one control event can be copied.
+ if (remained < sizeof(type) + sizeof(*entries)) {
+ spin_unlock_irq(&tscm->lock);
+ return -EINVAL;
+ }
+
+ // Copy the type field later.
+ count = sizeof(type);
+ remained -= sizeof(type);
+ pos += sizeof(type);
+
+ while (true) {
+ unsigned int head_pos;
+ unsigned int tail_pos;
+ unsigned int length;
+
+ if (tscm->pull_pos == tscm->push_pos)
+ break;
+ else if (tscm->pull_pos < tscm->push_pos)
+ tail_pos = tscm->push_pos;
+ else
+ tail_pos = SND_TSCM_QUEUE_COUNT;
+ head_pos = tscm->pull_pos;
+
+ length = (tail_pos - head_pos) * sizeof(*entries);
+ if (remained < length)
+ length = rounddown(remained, sizeof(*entries));
+ if (length == 0)
+ break;
+
+ spin_unlock_irq(&tscm->lock);
+ if (copy_to_user(pos, &entries[head_pos], length))
+ return -EFAULT;
+
+ spin_lock_irq(&tscm->lock);
+
+ tscm->pull_pos = tail_pos % SND_TSCM_QUEUE_COUNT;
+
+ count += length;
+ remained -= length;
+ pos += length;
+ }
+
+ spin_unlock_irq(&tscm->lock);
+
+ if (copy_to_user(buf, &type, sizeof(type)))
+ return -EFAULT;
+
+ return count;
+}
+
static long hwdep_read(struct snd_hwdep *hwdep, char __user *buf, long count,
loff_t *offset)
{
struct snd_tscm *tscm = hwdep->private_data;
DEFINE_WAIT(wait);
- union snd_firewire_event event = {
- .lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS,
- };
spin_lock_irq(&tscm->lock);
- while (!tscm->dev_lock_changed) {
+ while (!tscm->dev_lock_changed && tscm->push_pos == tscm->pull_pos) {
prepare_to_wait(&tscm->hwdep_wait, &wait, TASK_INTERRUPTIBLE);
spin_unlock_irq(&tscm->lock);
schedule();
@@ -37,15 +111,15 @@
spin_lock_irq(&tscm->lock);
}
- event.lock_status.status = (tscm->dev_lock_count > 0);
- tscm->dev_lock_changed = false;
-
- spin_unlock_irq(&tscm->lock);
-
- count = min_t(long, count, sizeof(event.lock_status));
-
- if (copy_to_user(buf, &event, count))
- return -EFAULT;
+ // NOTE: The acquired lock should be released in callee side.
+ if (tscm->dev_lock_changed) {
+ count = tscm_hwdep_read_locked(tscm, buf, count, offset);
+ } else if (tscm->push_pos != tscm->pull_pos) {
+ count = tscm_hwdep_read_queue(tscm, buf, count, offset);
+ } else {
+ spin_unlock_irq(&tscm->lock);
+ count = 0;
+ }
return count;
}
@@ -59,7 +133,7 @@
poll_wait(file, &tscm->hwdep_wait, wait);
spin_lock_irq(&tscm->lock);
- if (tscm->dev_lock_changed)
+ if (tscm->dev_lock_changed || tscm->push_pos != tscm->pull_pos)
events = EPOLLIN | EPOLLRDNORM;
else
events = 0;
@@ -123,6 +197,14 @@
return err;
}
+static int tscm_hwdep_state(struct snd_tscm *tscm, void __user *arg)
+{
+ if (copy_to_user(arg, tscm->state, sizeof(tscm->state)))
+ return -EFAULT;
+
+ return 0;
+}
+
static int hwdep_release(struct snd_hwdep *hwdep, struct file *file)
{
struct snd_tscm *tscm = hwdep->private_data;
@@ -147,6 +229,8 @@
return hwdep_lock(tscm);
case SNDRV_FIREWIRE_IOCTL_UNLOCK:
return hwdep_unlock(tscm);
+ case SNDRV_FIREWIRE_IOCTL_TASCAM_STATE:
+ return tscm_hwdep_state(tscm, (void __user *)arg);
default:
return -ENOIOCTLCMD;
}
@@ -185,5 +269,7 @@
hwdep->private_data = tscm;
hwdep->exclusive = true;
+ tscm->hwdep = hwdep;
+
return err;
}
diff --git a/sound/firewire/tascam/tascam-midi.c b/sound/firewire/tascam/tascam-midi.c
index 4a74157..02eed2d 100644
--- a/sound/firewire/tascam/tascam-midi.c
+++ b/sound/firewire/tascam/tascam-midi.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* tascam-midi.c - a part of driver for TASCAM FireWire series
*
* Copyright (c) 2015 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "tascam.h"
diff --git a/sound/firewire/tascam/tascam-pcm.c b/sound/firewire/tascam/tascam-pcm.c
index e4cc899..2377732 100644
--- a/sound/firewire/tascam/tascam-pcm.c
+++ b/sound/firewire/tascam/tascam-pcm.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* tascam-pcm.c - a part of driver for TASCAM FireWire series
*
* Copyright (c) 2015 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "tascam.h"
@@ -57,6 +56,9 @@
goto err_locked;
err = snd_tscm_stream_get_clock(tscm, &clock);
+ if (err < 0)
+ goto err_locked;
+
if (clock != SND_TSCM_CLOCK_INTERNAL ||
amdtp_stream_pcm_running(&tscm->rx_stream) ||
amdtp_stream_pcm_running(&tscm->tx_stream)) {
@@ -84,8 +86,8 @@
return 0;
}
-static int pcm_capture_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
+static int pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
{
struct snd_tscm *tscm = substream->private_data;
int err;
@@ -96,58 +98,26 @@
return err;
if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
+ unsigned int rate = params_rate(hw_params);
+
mutex_lock(&tscm->mutex);
- tscm->substreams_counter++;
+ err = snd_tscm_stream_reserve_duplex(tscm, rate);
+ if (err >= 0)
+ ++tscm->substreams_counter;
mutex_unlock(&tscm->mutex);
}
- return 0;
+ return err;
}
-static int pcm_playback_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
-{
- struct snd_tscm *tscm = substream->private_data;
- int err;
-
- err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
- params_buffer_bytes(hw_params));
- if (err < 0)
- return err;
-
- if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
- mutex_lock(&tscm->mutex);
- tscm->substreams_counter++;
- mutex_unlock(&tscm->mutex);
- }
-
- return 0;
-}
-
-static int pcm_capture_hw_free(struct snd_pcm_substream *substream)
+static int pcm_hw_free(struct snd_pcm_substream *substream)
{
struct snd_tscm *tscm = substream->private_data;
mutex_lock(&tscm->mutex);
if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN)
- tscm->substreams_counter--;
-
- snd_tscm_stream_stop_duplex(tscm);
-
- mutex_unlock(&tscm->mutex);
-
- return snd_pcm_lib_free_vmalloc_buffer(substream);
-}
-
-static int pcm_playback_hw_free(struct snd_pcm_substream *substream)
-{
- struct snd_tscm *tscm = substream->private_data;
-
- mutex_lock(&tscm->mutex);
-
- if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN)
- tscm->substreams_counter--;
+ --tscm->substreams_counter;
snd_tscm_stream_stop_duplex(tscm);
@@ -260,8 +230,8 @@
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,
- .hw_params = pcm_capture_hw_params,
- .hw_free = pcm_capture_hw_free,
+ .hw_params = pcm_hw_params,
+ .hw_free = pcm_hw_free,
.prepare = pcm_capture_prepare,
.trigger = pcm_capture_trigger,
.pointer = pcm_capture_pointer,
@@ -272,8 +242,8 @@
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,
- .hw_params = pcm_playback_hw_params,
- .hw_free = pcm_playback_hw_free,
+ .hw_params = pcm_hw_params,
+ .hw_free = pcm_hw_free,
.prepare = pcm_playback_prepare,
.trigger = pcm_playback_trigger,
.pointer = pcm_playback_pointer,
diff --git a/sound/firewire/tascam/tascam-proc.c b/sound/firewire/tascam/tascam-proc.c
index fee3bf3..53846ae 100644
--- a/sound/firewire/tascam/tascam-proc.c
+++ b/sound/firewire/tascam/tascam-proc.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* tascam-proc.h - a part of driver for TASCAM FireWire series
*
* Copyright (c) 2015 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "./tascam.h"
@@ -58,12 +57,8 @@
struct snd_info_entry *entry;
entry = snd_info_create_card_entry(tscm->card, name, root);
- if (entry == NULL)
- return;
-
- snd_info_set_text_ops(entry, tscm, op);
- if (snd_info_register(entry) < 0)
- snd_info_free_entry(entry);
+ if (entry)
+ snd_info_set_text_ops(entry, tscm, op);
}
void snd_tscm_proc_init(struct snd_tscm *tscm)
@@ -79,10 +74,6 @@
if (root == NULL)
return;
root->mode = S_IFDIR | 0555;
- if (snd_info_register(root) < 0) {
- snd_info_free_entry(root);
- return;
- }
add_node(tscm, root, "firmware", proc_read_firmware);
}
diff --git a/sound/firewire/tascam/tascam-stream.c b/sound/firewire/tascam/tascam-stream.c
index f1657a4..adf69a5 100644
--- a/sound/firewire/tascam/tascam-stream.c
+++ b/sound/firewire/tascam/tascam-stream.c
@@ -1,28 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* tascam-stream.c - a part of driver for TASCAM FireWire series
*
* Copyright (c) 2015 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include <linux/delay.h>
#include "tascam.h"
+#define CLOCK_STATUS_MASK 0xffff0000
+#define CLOCK_CONFIG_MASK 0x0000ffff
+
#define CALLBACK_TIMEOUT 500
static int get_clock(struct snd_tscm *tscm, u32 *data)
{
+ int trial = 0;
__be32 reg;
int err;
- err = snd_fw_transaction(tscm->unit, TCODE_READ_QUADLET_REQUEST,
- TSCM_ADDR_BASE + TSCM_OFFSET_CLOCK_STATUS,
- ®, sizeof(reg), 0);
- if (err >= 0)
- *data = be32_to_cpu(reg);
+ while (trial++ < 5) {
+ err = snd_fw_transaction(tscm->unit, TCODE_READ_QUADLET_REQUEST,
+ TSCM_ADDR_BASE + TSCM_OFFSET_CLOCK_STATUS,
+ ®, sizeof(reg), 0);
+ if (err < 0)
+ return err;
- return err;
+ *data = be32_to_cpu(reg);
+ if (*data & CLOCK_STATUS_MASK)
+ break;
+
+ // In intermediate state after changing clock status.
+ msleep(50);
+ }
+
+ // Still in the intermediate state.
+ if (trial >= 5)
+ return -EAGAIN;
+
+ return 0;
}
static int set_clock(struct snd_tscm *tscm, unsigned int rate,
@@ -35,7 +51,7 @@
err = get_clock(tscm, &data);
if (err < 0)
return err;
- data &= 0x0000ffff;
+ data &= CLOCK_CONFIG_MASK;
if (rate > 0) {
data &= 0x000000ff;
@@ -80,17 +96,14 @@
int snd_tscm_stream_get_rate(struct snd_tscm *tscm, unsigned int *rate)
{
- u32 data = 0x0;
- unsigned int trials = 0;
+ u32 data;
int err;
- while (data == 0x0 || trials++ < 5) {
- err = get_clock(tscm, &data);
- if (err < 0)
- return err;
+ err = get_clock(tscm, &data);
+ if (err < 0)
+ return err;
- data = (data & 0xff000000) >> 24;
- }
+ data = (data & 0xff000000) >> 24;
/* Check base rate. */
if ((data & 0x0f) == 0x01)
@@ -166,7 +179,7 @@
__be32 reg;
int err;
- /* Set an option for unknown purpose. */
+ // Set an option for unknown purpose.
reg = cpu_to_be32(0x00200000);
err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,
TSCM_ADDR_BASE + TSCM_OFFSET_SET_OPTION,
@@ -174,11 +187,7 @@
if (err < 0)
return err;
- err = enable_data_channels(tscm);
- if (err < 0)
- return err;
-
- return set_clock(tscm, rate, INT_MAX);
+ return enable_data_channels(tscm);
}
static void finish_session(struct snd_tscm *tscm)
@@ -195,6 +204,19 @@
TSCM_ADDR_BASE + TSCM_OFFSET_ISOC_RX_ON,
®, sizeof(reg), 0);
+ // Unregister channels.
+ reg = cpu_to_be32(0x00000000);
+ snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,
+ TSCM_ADDR_BASE + TSCM_OFFSET_ISOC_TX_CH,
+ ®, sizeof(reg), 0);
+ reg = cpu_to_be32(0x00000000);
+ snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,
+ TSCM_ADDR_BASE + TSCM_OFFSET_UNKNOWN,
+ ®, sizeof(reg), 0);
+ reg = cpu_to_be32(0x00000000);
+ snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,
+ TSCM_ADDR_BASE + TSCM_OFFSET_ISOC_RX_CH,
+ ®, sizeof(reg), 0);
}
static int begin_session(struct snd_tscm *tscm)
@@ -202,6 +224,30 @@
__be32 reg;
int err;
+ // Register the isochronous channel for transmitting stream.
+ reg = cpu_to_be32(tscm->tx_resources.channel);
+ err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,
+ TSCM_ADDR_BASE + TSCM_OFFSET_ISOC_TX_CH,
+ ®, sizeof(reg), 0);
+ if (err < 0)
+ return err;
+
+ // Unknown.
+ reg = cpu_to_be32(0x00000002);
+ err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,
+ TSCM_ADDR_BASE + TSCM_OFFSET_UNKNOWN,
+ ®, sizeof(reg), 0);
+ if (err < 0)
+ return err;
+
+ // Register the isochronous channel for receiving stream.
+ reg = cpu_to_be32(tscm->rx_resources.channel);
+ err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,
+ TSCM_ADDR_BASE + TSCM_OFFSET_ISOC_RX_CH,
+ ®, sizeof(reg), 0);
+ if (err < 0)
+ return err;
+
reg = cpu_to_be32(0x00000001);
err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,
TSCM_ADDR_BASE + TSCM_OFFSET_START_STREAMING,
@@ -216,7 +262,7 @@
if (err < 0)
return err;
- /* Set an option for unknown purpose. */
+ // Set an option for unknown purpose.
reg = cpu_to_be32(0x00002000);
err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,
TSCM_ADDR_BASE + TSCM_OFFSET_SET_OPTION,
@@ -224,7 +270,7 @@
if (err < 0)
return err;
- /* Start multiplexing PCM samples on packets. */
+ // Start multiplexing PCM samples on packets.
reg = cpu_to_be32(0x00000001);
return snd_fw_transaction(tscm->unit,
TCODE_WRITE_QUADLET_REQUEST,
@@ -232,169 +278,172 @@
®, sizeof(reg), 0);
}
-static void release_resources(struct snd_tscm *tscm)
+static int keep_resources(struct snd_tscm *tscm, unsigned int rate,
+ struct amdtp_stream *stream)
{
- __be32 reg;
-
- /* Unregister channels. */
- reg = cpu_to_be32(0x00000000);
- snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,
- TSCM_ADDR_BASE + TSCM_OFFSET_ISOC_TX_CH,
- ®, sizeof(reg), 0);
- reg = cpu_to_be32(0x00000000);
- snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,
- TSCM_ADDR_BASE + TSCM_OFFSET_UNKNOWN,
- ®, sizeof(reg), 0);
- reg = cpu_to_be32(0x00000000);
- snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,
- TSCM_ADDR_BASE + TSCM_OFFSET_ISOC_RX_CH,
- ®, sizeof(reg), 0);
-
- /* Release isochronous resources. */
- fw_iso_resources_free(&tscm->tx_resources);
- fw_iso_resources_free(&tscm->rx_resources);
-}
-
-static int keep_resources(struct snd_tscm *tscm, unsigned int rate)
-{
- __be32 reg;
+ struct fw_iso_resources *resources;
int err;
- /* Keep resources for in-stream. */
- err = amdtp_tscm_set_parameters(&tscm->tx_stream, rate);
- if (err < 0)
- return err;
- err = fw_iso_resources_allocate(&tscm->tx_resources,
- amdtp_stream_get_max_payload(&tscm->tx_stream),
- fw_parent_device(tscm->unit)->max_speed);
- if (err < 0)
- goto error;
+ if (stream == &tscm->tx_stream)
+ resources = &tscm->tx_resources;
+ else
+ resources = &tscm->rx_resources;
- /* Keep resources for out-stream. */
- err = amdtp_tscm_set_parameters(&tscm->rx_stream, rate);
- if (err < 0)
- return err;
- err = fw_iso_resources_allocate(&tscm->rx_resources,
- amdtp_stream_get_max_payload(&tscm->rx_stream),
- fw_parent_device(tscm->unit)->max_speed);
+ err = amdtp_tscm_set_parameters(stream, rate);
if (err < 0)
return err;
- /* Register the isochronous channel for transmitting stream. */
- reg = cpu_to_be32(tscm->tx_resources.channel);
- err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,
- TSCM_ADDR_BASE + TSCM_OFFSET_ISOC_TX_CH,
- ®, sizeof(reg), 0);
- if (err < 0)
- goto error;
+ return fw_iso_resources_allocate(resources,
+ amdtp_stream_get_max_payload(stream),
+ fw_parent_device(tscm->unit)->max_speed);
+}
- /* Unknown */
- reg = cpu_to_be32(0x00000002);
- err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,
- TSCM_ADDR_BASE + TSCM_OFFSET_UNKNOWN,
- ®, sizeof(reg), 0);
- if (err < 0)
- goto error;
+static int init_stream(struct snd_tscm *tscm, struct amdtp_stream *s)
+{
+ struct fw_iso_resources *resources;
+ enum amdtp_stream_direction dir;
+ unsigned int pcm_channels;
+ int err;
- /* Register the isochronous channel for receiving stream. */
- reg = cpu_to_be32(tscm->rx_resources.channel);
- err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,
- TSCM_ADDR_BASE + TSCM_OFFSET_ISOC_RX_CH,
- ®, sizeof(reg), 0);
- if (err < 0)
- goto error;
+ if (s == &tscm->tx_stream) {
+ resources = &tscm->tx_resources;
+ dir = AMDTP_IN_STREAM;
+ pcm_channels = tscm->spec->pcm_capture_analog_channels;
+ } else {
+ resources = &tscm->rx_resources;
+ dir = AMDTP_OUT_STREAM;
+ pcm_channels = tscm->spec->pcm_playback_analog_channels;
+ }
- return 0;
-error:
- release_resources(tscm);
+ if (tscm->spec->has_adat)
+ pcm_channels += 8;
+ if (tscm->spec->has_spdif)
+ pcm_channels += 2;
+
+ err = fw_iso_resources_init(resources, tscm->unit);
+ if (err < 0)
+ return err;
+
+ err = amdtp_tscm_init(s, tscm->unit, dir, pcm_channels);
+ if (err < 0)
+ fw_iso_resources_free(resources);
+
return err;
}
+static void destroy_stream(struct snd_tscm *tscm, struct amdtp_stream *s)
+{
+ amdtp_stream_destroy(s);
+
+ if (s == &tscm->tx_stream)
+ fw_iso_resources_destroy(&tscm->tx_resources);
+ else
+ fw_iso_resources_destroy(&tscm->rx_resources);
+}
+
int snd_tscm_stream_init_duplex(struct snd_tscm *tscm)
{
- unsigned int pcm_channels;
int err;
- /* For out-stream. */
- err = fw_iso_resources_init(&tscm->rx_resources, tscm->unit);
- if (err < 0)
- return err;
- pcm_channels = tscm->spec->pcm_playback_analog_channels;
- if (tscm->spec->has_adat)
- pcm_channels += 8;
- if (tscm->spec->has_spdif)
- pcm_channels += 2;
- err = amdtp_tscm_init(&tscm->rx_stream, tscm->unit, AMDTP_OUT_STREAM,
- pcm_channels);
+ err = init_stream(tscm, &tscm->tx_stream);
if (err < 0)
return err;
- /* For in-stream. */
- err = fw_iso_resources_init(&tscm->tx_resources, tscm->unit);
- if (err < 0)
+ err = init_stream(tscm, &tscm->rx_stream);
+ if (err < 0) {
+ destroy_stream(tscm, &tscm->tx_stream);
return err;
- pcm_channels = tscm->spec->pcm_capture_analog_channels;
- if (tscm->spec->has_adat)
- pcm_channels += 8;
- if (tscm->spec->has_spdif)
- pcm_channels += 2;
- err = amdtp_tscm_init(&tscm->tx_stream, tscm->unit, AMDTP_IN_STREAM,
- pcm_channels);
- if (err < 0)
- amdtp_stream_destroy(&tscm->rx_stream);
+ }
+
+ err = amdtp_domain_init(&tscm->domain);
+ if (err < 0) {
+ destroy_stream(tscm, &tscm->tx_stream);
+ destroy_stream(tscm, &tscm->rx_stream);
+ }
return err;
}
-/* At bus reset, streaming is stopped and some registers are clear. */
+// At bus reset, streaming is stopped and some registers are clear.
void snd_tscm_stream_update_duplex(struct snd_tscm *tscm)
{
- amdtp_stream_pcm_abort(&tscm->tx_stream);
- amdtp_stream_stop(&tscm->tx_stream);
+ amdtp_domain_stop(&tscm->domain);
+ amdtp_stream_pcm_abort(&tscm->tx_stream);
amdtp_stream_pcm_abort(&tscm->rx_stream);
- amdtp_stream_stop(&tscm->rx_stream);
}
-/*
- * This function should be called before starting streams or after stopping
- * streams.
- */
+// This function should be called before starting streams or after stopping
+// streams.
void snd_tscm_stream_destroy_duplex(struct snd_tscm *tscm)
{
- amdtp_stream_destroy(&tscm->rx_stream);
- amdtp_stream_destroy(&tscm->tx_stream);
+ amdtp_domain_destroy(&tscm->domain);
- fw_iso_resources_destroy(&tscm->rx_resources);
- fw_iso_resources_destroy(&tscm->tx_resources);
+ destroy_stream(tscm, &tscm->rx_stream);
+ destroy_stream(tscm, &tscm->tx_stream);
+}
+
+int snd_tscm_stream_reserve_duplex(struct snd_tscm *tscm, unsigned int rate)
+{
+ unsigned int curr_rate;
+ int err;
+
+ err = snd_tscm_stream_get_rate(tscm, &curr_rate);
+ if (err < 0)
+ return err;
+
+ if (tscm->substreams_counter == 0 || rate != curr_rate) {
+ amdtp_domain_stop(&tscm->domain);
+
+ finish_session(tscm);
+
+ fw_iso_resources_free(&tscm->tx_resources);
+ fw_iso_resources_free(&tscm->rx_resources);
+
+ err = set_clock(tscm, rate, INT_MAX);
+ if (err < 0)
+ return err;
+
+ err = keep_resources(tscm, rate, &tscm->tx_stream);
+ if (err < 0)
+ return err;
+
+ err = keep_resources(tscm, rate, &tscm->rx_stream);
+ if (err < 0) {
+ fw_iso_resources_free(&tscm->tx_resources);
+ return err;
+ }
+ }
+
+ return 0;
}
int snd_tscm_stream_start_duplex(struct snd_tscm *tscm, unsigned int rate)
{
- unsigned int curr_rate;
+ unsigned int generation = tscm->rx_resources.generation;
int err;
if (tscm->substreams_counter == 0)
return 0;
- err = snd_tscm_stream_get_rate(tscm, &curr_rate);
- if (err < 0)
- return err;
- if (curr_rate != rate ||
- amdtp_streaming_error(&tscm->rx_stream) ||
+ if (amdtp_streaming_error(&tscm->rx_stream) ||
amdtp_streaming_error(&tscm->tx_stream)) {
+ amdtp_domain_stop(&tscm->domain);
finish_session(tscm);
+ }
- amdtp_stream_stop(&tscm->rx_stream);
- amdtp_stream_stop(&tscm->tx_stream);
+ if (generation != fw_parent_device(tscm->unit)->card->generation) {
+ err = fw_iso_resources_update(&tscm->tx_resources);
+ if (err < 0)
+ goto error;
- release_resources(tscm);
+ err = fw_iso_resources_update(&tscm->rx_resources);
+ if (err < 0)
+ goto error;
}
if (!amdtp_stream_running(&tscm->rx_stream)) {
- err = keep_resources(tscm, rate);
- if (err < 0)
- goto error;
+ int spd = fw_parent_device(tscm->unit)->max_speed;
err = set_stream_formats(tscm, rate);
if (err < 0)
@@ -404,27 +453,23 @@
if (err < 0)
goto error;
- err = amdtp_stream_start(&tscm->rx_stream,
- tscm->rx_resources.channel,
- fw_parent_device(tscm->unit)->max_speed);
+ err = amdtp_domain_add_stream(&tscm->domain, &tscm->rx_stream,
+ tscm->rx_resources.channel, spd);
if (err < 0)
goto error;
+ err = amdtp_domain_add_stream(&tscm->domain, &tscm->tx_stream,
+ tscm->tx_resources.channel, spd);
+ if (err < 0)
+ goto error;
+
+ err = amdtp_domain_start(&tscm->domain);
+ if (err < 0)
+ return err;
+
if (!amdtp_stream_wait_callback(&tscm->rx_stream,
- CALLBACK_TIMEOUT)) {
- err = -ETIMEDOUT;
- goto error;
- }
- }
-
- if (!amdtp_stream_running(&tscm->tx_stream)) {
- err = amdtp_stream_start(&tscm->tx_stream,
- tscm->tx_resources.channel,
- fw_parent_device(tscm->unit)->max_speed);
- if (err < 0)
- goto error;
-
- if (!amdtp_stream_wait_callback(&tscm->tx_stream,
+ CALLBACK_TIMEOUT) ||
+ !amdtp_stream_wait_callback(&tscm->tx_stream,
CALLBACK_TIMEOUT)) {
err = -ETIMEDOUT;
goto error;
@@ -433,25 +478,21 @@
return 0;
error:
- amdtp_stream_stop(&tscm->rx_stream);
- amdtp_stream_stop(&tscm->tx_stream);
-
+ amdtp_domain_stop(&tscm->domain);
finish_session(tscm);
- release_resources(tscm);
return err;
}
void snd_tscm_stream_stop_duplex(struct snd_tscm *tscm)
{
- if (tscm->substreams_counter > 0)
- return;
+ if (tscm->substreams_counter == 0) {
+ amdtp_domain_stop(&tscm->domain);
+ finish_session(tscm);
- amdtp_stream_stop(&tscm->tx_stream);
- amdtp_stream_stop(&tscm->rx_stream);
-
- finish_session(tscm);
- release_resources(tscm);
+ fw_iso_resources_free(&tscm->tx_resources);
+ fw_iso_resources_free(&tscm->rx_resources);
+ }
}
void snd_tscm_stream_lock_changed(struct snd_tscm *tscm)
diff --git a/sound/firewire/tascam/tascam-transaction.c b/sound/firewire/tascam/tascam-transaction.c
index 2ad692d..90288b4 100644
--- a/sound/firewire/tascam/tascam-transaction.c
+++ b/sound/firewire/tascam/tascam-transaction.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* tascam-transaction.c - a part of driver for TASCAM FireWire series
*
* Copyright (c) 2015 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "tascam.h"
diff --git a/sound/firewire/tascam/tascam.c b/sound/firewire/tascam/tascam.c
index d3fdc46..addc464 100644
--- a/sound/firewire/tascam/tascam.c
+++ b/sound/firewire/tascam/tascam.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* tascam.c - a part of driver for TASCAM FireWire series
*
* Copyright (c) 2015 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#include "tascam.h"
@@ -40,6 +39,9 @@
.midi_capture_ports = 2,
.midi_playback_ports = 4,
},
+ // This kernel module doesn't support FE-8 because the most of features
+ // can be implemented in userspace without any specific support of this
+ // module.
};
static int identify_model(struct snd_tscm *tscm)
@@ -85,20 +87,12 @@
return 0;
}
-static void tscm_free(struct snd_tscm *tscm)
-{
- snd_tscm_transaction_unregister(tscm);
- snd_tscm_stream_destroy_duplex(tscm);
-
- fw_unit_put(tscm->unit);
-
- mutex_destroy(&tscm->mutex);
- kfree(tscm);
-}
-
static void tscm_card_free(struct snd_card *card)
{
- tscm_free(card->private_data);
+ struct snd_tscm *tscm = card->private_data;
+
+ snd_tscm_transaction_unregister(tscm);
+ snd_tscm_stream_destroy_duplex(tscm);
}
static void do_registration(struct work_struct *work)
@@ -110,6 +104,8 @@
&tscm->card);
if (err < 0)
return;
+ tscm->card->private_free = tscm_card_free;
+ tscm->card->private_data = tscm;
err = identify_model(tscm);
if (err < 0)
@@ -141,18 +137,10 @@
if (err < 0)
goto error;
- /*
- * After registered, tscm instance can be released corresponding to
- * releasing the sound card instance.
- */
- tscm->card->private_free = tscm_card_free;
- tscm->card->private_data = tscm;
tscm->registered = true;
return;
error:
- snd_tscm_transaction_unregister(tscm);
- snd_tscm_stream_destroy_duplex(tscm);
snd_card_free(tscm->card);
dev_info(&tscm->unit->device,
"Sound card registration failed: %d\n", err);
@@ -164,11 +152,9 @@
struct snd_tscm *tscm;
/* Allocate this independent of sound card instance. */
- tscm = kzalloc(sizeof(struct snd_tscm), GFP_KERNEL);
- if (tscm == NULL)
+ tscm = devm_kzalloc(&unit->device, sizeof(struct snd_tscm), GFP_KERNEL);
+ if (!tscm)
return -ENOMEM;
-
- /* initialize myself */
tscm->unit = fw_unit_get(unit);
dev_set_drvdata(&unit->device, tscm);
@@ -216,12 +202,12 @@
cancel_delayed_work_sync(&tscm->dwork);
if (tscm->registered) {
- /* No need to wait for releasing card object in this context. */
- snd_card_free_when_closed(tscm->card);
- } else {
- /* Don't forget this case. */
- tscm_free(tscm);
+ // Block till all of ALSA character devices are released.
+ snd_card_free(tscm->card);
}
+
+ mutex_destroy(&tscm->mutex);
+ fw_unit_put(tscm->unit);
}
static const struct ieee1394_device_id snd_tscm_id_table[] = {
@@ -231,7 +217,6 @@
.vendor_id = 0x00022e,
.specifier_id = 0x00022e,
},
- /* FE-08 requires reverse-engineering because it just has faders. */
{}
};
MODULE_DEVICE_TABLE(ieee1394, snd_tscm_id_table);
diff --git a/sound/firewire/tascam/tascam.h b/sound/firewire/tascam/tascam.h
index a5bd167..15bd335 100644
--- a/sound/firewire/tascam/tascam.h
+++ b/sound/firewire/tascam/tascam.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* tascam.h - a part of driver for TASCAM FireWire series
*
* Copyright (c) 2015 Takashi Sakamoto
- *
- * Licensed under the terms of the GNU General Public License, version 2.
*/
#ifndef SOUND_TASCAM_H_INCLUDED
@@ -62,6 +61,8 @@
int consume_bytes;
};
+#define SND_TSCM_QUEUE_COUNT 16
+
struct snd_tscm {
struct snd_card *card;
struct fw_unit *unit;
@@ -89,6 +90,15 @@
/* For MIDI message outgoing transactions. */
struct snd_fw_async_midi_port out_ports[TSCM_MIDI_OUT_PORT_MAX];
+
+ // A cache of status information in tx isoc packets.
+ __be32 state[SNDRV_FIREWIRE_TASCAM_STATE_COUNT];
+ struct snd_hwdep *hwdep;
+ struct snd_firewire_tascam_change queue[SND_TSCM_QUEUE_COUNT];
+ unsigned int pull_pos;
+ unsigned int push_pos;
+
+ struct amdtp_domain domain;
};
#define TSCM_ADDR_BASE 0xffff00000000ull
@@ -119,6 +129,26 @@
#define TSCM_OFFSET_MIDI_RX_QUAD 0x4000
+// Although FE-8 supports the above registers, it has no I/O interfaces for
+// audio samples and music messages. Otherwise it supports another notification
+// for status and control message as well as LED brightening. The message
+// consists of quadlet-aligned data up to 32 quadlets. The first byte of message
+// is fixed to 0x40. The second byte is between 0x00 to 0x1f and represent each
+// control:
+// fader: 0x00-0x07
+// button: 0x0d, 0x0e
+// knob: 0x14-0x1b
+// sensing: 0x0b
+//
+// The rest two bytes represent state of the controls; e.g. current value for
+// fader and knob, bitmasks for button and sensing.
+// Just after turning on, 32 quadlets messages with 0x00-0x1f are immediately
+// sent in one transaction. After, several quadlets are sent in one transaction.
+//
+// TSCM_OFFSET_FE8_CTL_TX_ON 0x0310
+// TSCM_OFFSET_FE8_CTL_TX_ADDR_HI 0x0314
+// TSCM_OFFSET_FE8_CTL_TX_ADDR_LO 0x0318
+
enum snd_tscm_clock {
SND_TSCM_CLOCK_INTERNAL = 0,
SND_TSCM_CLOCK_WORD = 1,
@@ -138,6 +168,7 @@
int snd_tscm_stream_init_duplex(struct snd_tscm *tscm);
void snd_tscm_stream_update_duplex(struct snd_tscm *tscm);
void snd_tscm_stream_destroy_duplex(struct snd_tscm *tscm);
+int snd_tscm_stream_reserve_duplex(struct snd_tscm *tscm, unsigned int rate);
int snd_tscm_stream_start_duplex(struct snd_tscm *tscm, unsigned int rate);
void snd_tscm_stream_stop_duplex(struct snd_tscm *tscm);