Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig
index 845b031..aae665a 100644
--- a/drivers/bluetooth/Kconfig
+++ b/drivers/bluetooth/Kconfig
@@ -52,6 +52,17 @@
Say Y here to compile support for Broadcom protocol.
+config BT_HCIBTUSB_MTK
+ bool "MediaTek protocol support"
+ depends on BT_HCIBTUSB
+ default n
+ help
+ The MediaTek protocol support enables firmware download
+ support and chip initialization for MediaTek Bluetooth
+ USB controllers.
+
+ Say Y here to compile support for MediaTek protocol.
+
config BT_HCIBTUSB_RTL
bool "Realtek protocol support"
depends on BT_HCIBTUSB
@@ -237,6 +248,7 @@
config BT_HCIUART_MRVL
bool "Marvell protocol support"
depends on BT_HCIUART
+ depends on BT_HCIUART_SERDEV
select BT_HCIUART_H4
help
Marvell is serial protocol for communication between Bluetooth
@@ -336,7 +348,7 @@
The core driver to support Marvell Bluetooth devices.
This driver is required if you want to support
- Marvell Bluetooth devices, such as 8688/8787/8797/8887/8897/8997.
+ Marvell Bluetooth devices, such as 8688/8787/8797/8887/8897/8977/8987/8997.
Say Y here to compile Marvell Bluetooth driver
into the kernel or say M to compile it as module.
@@ -350,7 +362,7 @@
The driver for Marvell Bluetooth chipsets with SDIO interface.
This driver is required if you want to use Marvell Bluetooth
- devices with SDIO interface. Currently SD8688/SD8787/SD8797/SD8887/SD8897/SD8997
+ devices with SDIO interface. Currently SD8688/SD8787/SD8797/SD8887/SD8897/SD8977/SD8987/SD8997
chipsets are supported.
Say Y here to compile support for Marvell BT-over-SDIO driver
@@ -379,6 +391,17 @@
Say Y here to compile support for Texas Instrument's WiLink7 driver
into the kernel or say M to compile it as module (btwilink).
+config BT_MTKSDIO
+ tristate "MediaTek HCI SDIO driver"
+ depends on MMC
+ help
+ MediaTek Bluetooth HCI SDIO driver.
+ This driver is required if you want to use MediaTek Bluetooth
+ with SDIO interface.
+
+ Say Y here to compile support for MediaTek Bluetooth SDIO devices
+ into the kernel or say M to compile it as module (btmtksdio).
+
config BT_MTKUART
tristate "MediaTek HCI UART driver"
depends on SERIAL_DEV_BUS
diff --git a/drivers/bluetooth/Makefile b/drivers/bluetooth/Makefile
index b7e393c..34887b9 100644
--- a/drivers/bluetooth/Makefile
+++ b/drivers/bluetooth/Makefile
@@ -20,6 +20,7 @@
obj-$(CONFIG_BT_MRVL) += btmrvl.o
obj-$(CONFIG_BT_MRVL_SDIO) += btmrvl_sdio.o
obj-$(CONFIG_BT_WILINK) += btwilink.o
+obj-$(CONFIG_BT_MTKSDIO) += btmtksdio.o
obj-$(CONFIG_BT_MTKUART) += btmtkuart.o
obj-$(CONFIG_BT_QCOMSMD) += btqcomsmd.o
obj-$(CONFIG_BT_BCM) += btbcm.o
diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c
index 3d7a5c1..4ce2705 100644
--- a/drivers/bluetooth/ath3k.c
+++ b/drivers/bluetooth/ath3k.c
@@ -1,20 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2008-2009 Atheros Communications Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
@@ -203,10 +189,11 @@
{ } /* Terminating entry */
};
-static inline void ath3k_log_failed_loading(int err, int len, int size)
+static inline void ath3k_log_failed_loading(int err, int len, int size,
+ int count)
{
- BT_ERR("Error in firmware loading err = %d, len = %d, size = %d",
- err, len, size);
+ BT_ERR("Firmware loading err = %d, len = %d, size = %d, count = %d",
+ err, len, size, count);
}
#define USB_REQ_DFU_DNLOAD 1
@@ -257,7 +244,7 @@
&len, 3000);
if (err || (len != size)) {
- ath3k_log_failed_loading(err, len, size);
+ ath3k_log_failed_loading(err, len, size, count);
goto error;
}
@@ -356,7 +343,7 @@
err = usb_bulk_msg(udev, pipe, send_buf, size,
&len, 3000);
if (err || (len != size)) {
- ath3k_log_failed_loading(err, len, size);
+ ath3k_log_failed_loading(err, len, size, count);
kfree(send_buf);
return err;
}
diff --git a/drivers/bluetooth/bcm203x.c b/drivers/bluetooth/bcm203x.c
index 8e9547f..3b17625 100644
--- a/drivers/bluetooth/bcm203x.c
+++ b/drivers/bluetooth/bcm203x.c
@@ -1,25 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* Broadcom Blutonium firmware driver
*
* Copyright (C) 2003 Maxim Krasnyansky <maxk@qualcomm.com>
* Copyright (C) 2003 Marcel Holtmann <marcel@holtmann.org>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/module.h>
diff --git a/drivers/bluetooth/bfusb.c b/drivers/bluetooth/bfusb.c
index 0588639..0e5954c 100644
--- a/drivers/bluetooth/bfusb.c
+++ b/drivers/bluetooth/bfusb.c
@@ -1,24 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* AVM BlueFRITZ! USB driver
*
* Copyright (C) 2003-2006 Marcel Holtmann <marcel@holtmann.org>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/module.h>
diff --git a/drivers/bluetooth/bpa10x.c b/drivers/bluetooth/bpa10x.c
index d1c2adf..1fa58c0 100644
--- a/drivers/bluetooth/bpa10x.c
+++ b/drivers/bluetooth/bpa10x.c
@@ -1,24 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* Digianswer Bluetooth USB driver
*
* Copyright (C) 2004-2007 Marcel Holtmann <marcel@holtmann.org>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/kernel.h>
@@ -352,7 +337,7 @@
usb_free_urb(urb);
- return 0;
+ return err;
}
static int bpa10x_set_diag(struct hci_dev *hdev, bool enable)
@@ -374,7 +359,8 @@
return 0;
}
-static int bpa10x_probe(struct usb_interface *intf, const struct usb_device_id *id)
+static int bpa10x_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
{
struct bpa10x_data *data;
struct hci_dev *hdev;
diff --git a/drivers/bluetooth/bt3c_cs.c b/drivers/bluetooth/bt3c_cs.c
index 25b0cf9..5471383 100644
--- a/drivers/bluetooth/bt3c_cs.c
+++ b/drivers/bluetooth/bt3c_cs.c
@@ -448,7 +448,7 @@
{
char *ptr = (char *) firmware;
char b[9];
- unsigned int iobase, tmp;
+ unsigned int iobase, tmp, tn;
unsigned long size, addr, fcs;
int i, err = 0;
@@ -490,7 +490,9 @@
memset(b, 0, sizeof(b));
for (tmp = 0, i = 0; i < size; i++) {
memcpy(b, ptr + (i * 2) + 2, 2);
- tmp += simple_strtol(b, NULL, 16);
+ if (kstrtouint(b, 16, &tn))
+ return -EINVAL;
+ tmp += tn;
}
if (((tmp + fcs) & 0xff) != 0xff) {
@@ -505,7 +507,8 @@
memset(b, 0, sizeof(b));
for (i = 0; i < (size - 4) / 2; i++) {
memcpy(b, ptr + (i * 4) + 12, 4);
- tmp = simple_strtoul(b, NULL, 16);
+ if (kstrtouint(b, 16, &tmp))
+ return -EINVAL;
bt3c_put(iobase, tmp);
}
}
diff --git a/drivers/bluetooth/btbcm.c b/drivers/bluetooth/btbcm.c
index e3e4d92..2d2e6d8 100644
--- a/drivers/bluetooth/btbcm.c
+++ b/drivers/bluetooth/btbcm.c
@@ -1,24 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* Bluetooth support for Broadcom devices
*
* Copyright (C) 2015 Intel Corporation
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/module.h>
@@ -33,8 +18,13 @@
#define VERSION "0.1"
#define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}})
+#define BDADDR_BCM20702A1 (&(bdaddr_t) {{0x00, 0x00, 0xa0, 0x02, 0x70, 0x20}})
+#define BDADDR_BCM2076B1 (&(bdaddr_t) {{0x79, 0x56, 0x00, 0xa0, 0x76, 0x20}})
+#define BDADDR_BCM43430A0 (&(bdaddr_t) {{0xac, 0x1f, 0x12, 0xa0, 0x43, 0x43}})
#define BDADDR_BCM4324B3 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb3, 0x24, 0x43}})
#define BDADDR_BCM4330B1 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb1, 0x30, 0x43}})
+#define BDADDR_BCM4345C5 (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0xc5, 0x45, 0x43}})
+#define BDADDR_BCM43341B (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0x1b, 0x34, 0x43}})
int btbcm_check_bdaddr(struct hci_dev *hdev)
{
@@ -64,15 +54,29 @@
* The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller
* with no configured address.
*
+ * The address 20:70:02:A0:00:00 indicates a BCM20702A1 controller
+ * with no configured address.
+ *
+ * The address 20:76:A0:00:56:79 indicates a BCM2076B1 controller
+ * with no configured address.
+ *
* The address 43:24:B3:00:00:00 indicates a BCM4324B3 controller
* with waiting for configuration state.
*
* The address 43:30:B1:00:00:00 indicates a BCM4330B1 controller
* with waiting for configuration state.
+ *
+ * The address 43:43:A0:12:1F:AC indicates a BCM43430A0 controller
+ * with no configured address.
*/
if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0) ||
+ !bacmp(&bda->bdaddr, BDADDR_BCM20702A1) ||
+ !bacmp(&bda->bdaddr, BDADDR_BCM2076B1) ||
!bacmp(&bda->bdaddr, BDADDR_BCM4324B3) ||
- !bacmp(&bda->bdaddr, BDADDR_BCM4330B1)) {
+ !bacmp(&bda->bdaddr, BDADDR_BCM4330B1) ||
+ !bacmp(&bda->bdaddr, BDADDR_BCM4345C5) ||
+ !bacmp(&bda->bdaddr, BDADDR_BCM43430A0) ||
+ !bacmp(&bda->bdaddr, BDADDR_BCM43341B)) {
bt_dev_info(hdev, "BCM: Using default device address (%pMR)",
&bda->bdaddr);
set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
@@ -323,13 +327,18 @@
static const struct bcm_subver_table bcm_uart_subver_table[] = {
{ 0x4103, "BCM4330B1" }, /* 002.001.003 */
{ 0x410e, "BCM43341B0" }, /* 002.001.014 */
+ { 0x4204, "BCM2076B1" }, /* 002.002.004 */
{ 0x4406, "BCM4324B3" }, /* 002.004.006 */
{ 0x6109, "BCM4335C0" }, /* 003.001.009 */
{ 0x610c, "BCM4354" }, /* 003.001.012 */
{ 0x2122, "BCM4343A0" }, /* 001.001.034 */
{ 0x2209, "BCM43430A1" }, /* 001.002.009 */
{ 0x6119, "BCM4345C0" }, /* 003.001.025 */
+ { 0x6606, "BCM4345C5" }, /* 003.006.006 */
{ 0x230f, "BCM4356A2" }, /* 001.003.015 */
+ { 0x220e, "BCM20702A1" }, /* 001.002.014 */
+ { 0x4217, "BCM4329B1" }, /* 002.002.023 */
+ { 0x6106, "BCM4359C0" }, /* 003.001.006 */
{ }
};
diff --git a/drivers/bluetooth/btbcm.h b/drivers/bluetooth/btbcm.h
index 5346515..d204be8 100644
--- a/drivers/bluetooth/btbcm.h
+++ b/drivers/bluetooth/btbcm.h
@@ -1,24 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
*
* Bluetooth support for Broadcom devices
*
* Copyright (C) 2015 Intel Corporation
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#define BCM_UART_CLOCK_48MHZ 0x01
diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c
index 5270d55..bb99c86 100644
--- a/drivers/bluetooth/btintel.c
+++ b/drivers/bluetooth/btintel.c
@@ -1,24 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* Bluetooth support for Intel devices
*
* Copyright (C) 2015 Intel Corporation
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/module.h>
diff --git a/drivers/bluetooth/btintel.h b/drivers/bluetooth/btintel.h
index 41c642c..3d84619 100644
--- a/drivers/bluetooth/btintel.h
+++ b/drivers/bluetooth/btintel.h
@@ -1,24 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
*
* Bluetooth support for Intel devices
*
* Copyright (C) 2015 Intel Corporation
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
struct intel_version {
diff --git a/drivers/bluetooth/btmrvl_drv.h b/drivers/bluetooth/btmrvl_drv.h
index f045454..fb77297 100644
--- a/drivers/bluetooth/btmrvl_drv.h
+++ b/drivers/bluetooth/btmrvl_drv.h
@@ -24,11 +24,9 @@
#include <linux/slab.h>
#include <net/bluetooth/bluetooth.h>
#include <linux/err.h>
-#include <linux/gpio.h>
#include <linux/gfp.h>
#include <linux/interrupt.h>
#include <linux/io.h>
-#include <linux/of_gpio.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c
index fb3d039..0f3a020 100644
--- a/drivers/bluetooth/btmrvl_sdio.c
+++ b/drivers/bluetooth/btmrvl_sdio.c
@@ -62,13 +62,14 @@
static irqreturn_t btmrvl_wake_irq_bt(int irq, void *priv)
{
struct btmrvl_sdio_card *card = priv;
+ struct device *dev = &card->func->dev;
struct btmrvl_plt_wake_cfg *cfg = card->plt_wake_cfg;
- pr_info("%s: wake by bt\n", __func__);
+ dev_info(dev, "wake by bt\n");
cfg->wake_by_bt = true;
disable_irq_nosync(irq);
- pm_wakeup_event(&card->func->dev, 0);
+ pm_wakeup_event(dev, 0);
pm_system_wakeup();
return IRQ_HANDLED;
@@ -87,7 +88,7 @@
if (!dev->of_node ||
!of_match_node(btmrvl_sdio_of_match_table, dev->of_node)) {
- pr_err("sdio platform data not available\n");
+ dev_info(dev, "sdio device tree data not available\n");
return -1;
}
@@ -211,6 +212,52 @@
.fw_dump_end = 0xea,
};
+static const struct btmrvl_sdio_card_reg btmrvl_reg_8977 = {
+ .cfg = 0x00,
+ .host_int_mask = 0x08,
+ .host_intstatus = 0x0c,
+ .card_status = 0x5c,
+ .sq_read_base_addr_a0 = 0xf8,
+ .sq_read_base_addr_a1 = 0xf9,
+ .card_revision = 0xc8,
+ .card_fw_status0 = 0xe8,
+ .card_fw_status1 = 0xe9,
+ .card_rx_len = 0xea,
+ .card_rx_unit = 0xeb,
+ .io_port_0 = 0xe4,
+ .io_port_1 = 0xe5,
+ .io_port_2 = 0xe6,
+ .int_read_to_clear = true,
+ .host_int_rsr = 0x04,
+ .card_misc_cfg = 0xD8,
+ .fw_dump_ctrl = 0xf0,
+ .fw_dump_start = 0xf1,
+ .fw_dump_end = 0xf8,
+};
+
+static const struct btmrvl_sdio_card_reg btmrvl_reg_8987 = {
+ .cfg = 0x00,
+ .host_int_mask = 0x08,
+ .host_intstatus = 0x0c,
+ .card_status = 0x5c,
+ .sq_read_base_addr_a0 = 0xf8,
+ .sq_read_base_addr_a1 = 0xf9,
+ .card_revision = 0xc8,
+ .card_fw_status0 = 0xe8,
+ .card_fw_status1 = 0xe9,
+ .card_rx_len = 0xea,
+ .card_rx_unit = 0xeb,
+ .io_port_0 = 0xe4,
+ .io_port_1 = 0xe5,
+ .io_port_2 = 0xe6,
+ .int_read_to_clear = true,
+ .host_int_rsr = 0x04,
+ .card_misc_cfg = 0xd8,
+ .fw_dump_ctrl = 0xf0,
+ .fw_dump_start = 0xf1,
+ .fw_dump_end = 0xf8,
+};
+
static const struct btmrvl_sdio_card_reg btmrvl_reg_8997 = {
.cfg = 0x00,
.host_int_mask = 0x08,
@@ -279,6 +326,24 @@
.supports_fw_dump = true,
};
+static const struct btmrvl_sdio_device btmrvl_sdio_sd8977 = {
+ .helper = NULL,
+ .firmware = "mrvl/sd8977_uapsta.bin",
+ .reg = &btmrvl_reg_8977,
+ .support_pscan_win_report = true,
+ .sd_blksz_fw_dl = 256,
+ .supports_fw_dump = true,
+};
+
+static const struct btmrvl_sdio_device btmrvl_sdio_sd8987 = {
+ .helper = NULL,
+ .firmware = "mrvl/sd8987_uapsta.bin",
+ .reg = &btmrvl_reg_8987,
+ .support_pscan_win_report = true,
+ .sd_blksz_fw_dl = 256,
+ .supports_fw_dump = true,
+};
+
static const struct btmrvl_sdio_device btmrvl_sdio_sd8997 = {
.helper = NULL,
.firmware = "mrvl/sd8997_uapsta.bin",
@@ -307,6 +372,12 @@
/* Marvell SD8897 Bluetooth device */
{ SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912E),
.driver_data = (unsigned long)&btmrvl_sdio_sd8897 },
+ /* Marvell SD8977 Bluetooth device */
+ { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9146),
+ .driver_data = (unsigned long)&btmrvl_sdio_sd8977 },
+ /* Marvell SD8987 Bluetooth device */
+ { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x914A),
+ .driver_data = (unsigned long)&btmrvl_sdio_sd8987 },
/* Marvell SD8997 Bluetooth device */
{ SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9142),
.driver_data = (unsigned long)&btmrvl_sdio_sd8997 },
@@ -1760,4 +1831,6 @@
MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin");
MODULE_FIRMWARE("mrvl/sd8887_uapsta.bin");
MODULE_FIRMWARE("mrvl/sd8897_uapsta.bin");
+MODULE_FIRMWARE("mrvl/sd8977_uapsta.bin");
+MODULE_FIRMWARE("mrvl/sd8987_uapsta.bin");
MODULE_FIRMWARE("mrvl/sd8997_uapsta.bin");
diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
new file mode 100644
index 0000000..8133382
--- /dev/null
+++ b/drivers/bluetooth/btmtksdio.c
@@ -0,0 +1,1101 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 MediaTek Inc.
+
+/*
+ * Bluetooth support for MediaTek SDIO devices
+ *
+ * This file is written based on btsdio.c and btmtkuart.c.
+ *
+ * Author: Sean Wang <sean.wang@mediatek.com>
+ *
+ */
+
+#include <asm/unaligned.h>
+#include <linux/atomic.h>
+#include <linux/firmware.h>
+#include <linux/init.h>
+#include <linux/iopoll.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/skbuff.h>
+
+#include <linux/mmc/host.h>
+#include <linux/mmc/sdio_ids.h>
+#include <linux/mmc/sdio_func.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+#include "h4_recv.h"
+
+#define VERSION "0.1"
+
+#define FIRMWARE_MT7663 "mediatek/mt7663pr2h.bin"
+#define FIRMWARE_MT7668 "mediatek/mt7668pr2h.bin"
+
+#define MTKBTSDIO_AUTOSUSPEND_DELAY 8000
+
+static bool enable_autosuspend;
+
+struct btmtksdio_data {
+ const char *fwname;
+};
+
+static const struct btmtksdio_data mt7663_data = {
+ .fwname = FIRMWARE_MT7663,
+};
+
+static const struct btmtksdio_data mt7668_data = {
+ .fwname = FIRMWARE_MT7668,
+};
+
+static const struct sdio_device_id btmtksdio_table[] = {
+ {SDIO_DEVICE(SDIO_VENDOR_ID_MEDIATEK, 0x7663),
+ .driver_data = (kernel_ulong_t)&mt7663_data },
+ {SDIO_DEVICE(SDIO_VENDOR_ID_MEDIATEK, 0x7668),
+ .driver_data = (kernel_ulong_t)&mt7668_data },
+ { } /* Terminating entry */
+};
+
+#define MTK_REG_CHLPCR 0x4 /* W1S */
+#define C_INT_EN_SET BIT(0)
+#define C_INT_EN_CLR BIT(1)
+#define C_FW_OWN_REQ_SET BIT(8) /* For write */
+#define C_COM_DRV_OWN BIT(8) /* For read */
+#define C_FW_OWN_REQ_CLR BIT(9)
+
+#define MTK_REG_CSDIOCSR 0x8
+#define SDIO_RE_INIT_EN BIT(0)
+#define SDIO_INT_CTL BIT(2)
+
+#define MTK_REG_CHCR 0xc
+#define C_INT_CLR_CTRL BIT(1)
+
+/* CHISR have the same bits field definition with CHIER */
+#define MTK_REG_CHISR 0x10
+#define MTK_REG_CHIER 0x14
+#define FW_OWN_BACK_INT BIT(0)
+#define RX_DONE_INT BIT(1)
+#define TX_EMPTY BIT(2)
+#define TX_FIFO_OVERFLOW BIT(8)
+#define RX_PKT_LEN GENMASK(31, 16)
+
+#define MTK_REG_CTDR 0x18
+
+#define MTK_REG_CRDR 0x1c
+
+#define MTK_SDIO_BLOCK_SIZE 256
+
+#define BTMTKSDIO_TX_WAIT_VND_EVT 1
+
+enum {
+ MTK_WMT_PATCH_DWNLD = 0x1,
+ MTK_WMT_TEST = 0x2,
+ MTK_WMT_WAKEUP = 0x3,
+ MTK_WMT_HIF = 0x4,
+ MTK_WMT_FUNC_CTRL = 0x6,
+ MTK_WMT_RST = 0x7,
+ MTK_WMT_SEMAPHORE = 0x17,
+};
+
+enum {
+ BTMTK_WMT_INVALID,
+ BTMTK_WMT_PATCH_UNDONE,
+ BTMTK_WMT_PATCH_DONE,
+ BTMTK_WMT_ON_UNDONE,
+ BTMTK_WMT_ON_DONE,
+ BTMTK_WMT_ON_PROGRESS,
+};
+
+struct mtkbtsdio_hdr {
+ __le16 len;
+ __le16 reserved;
+ u8 bt_type;
+} __packed;
+
+struct mtk_wmt_hdr {
+ u8 dir;
+ u8 op;
+ __le16 dlen;
+ u8 flag;
+} __packed;
+
+struct mtk_hci_wmt_cmd {
+ struct mtk_wmt_hdr hdr;
+ u8 data[256];
+} __packed;
+
+struct btmtk_hci_wmt_evt {
+ struct hci_event_hdr hhdr;
+ struct mtk_wmt_hdr whdr;
+} __packed;
+
+struct btmtk_hci_wmt_evt_funcc {
+ struct btmtk_hci_wmt_evt hwhdr;
+ __be16 status;
+} __packed;
+
+struct btmtk_tci_sleep {
+ u8 mode;
+ __le16 duration;
+ __le16 host_duration;
+ u8 host_wakeup_pin;
+ u8 time_compensation;
+} __packed;
+
+struct btmtk_hci_wmt_params {
+ u8 op;
+ u8 flag;
+ u16 dlen;
+ const void *data;
+ u32 *status;
+};
+
+struct btmtksdio_dev {
+ struct hci_dev *hdev;
+ struct sdio_func *func;
+ struct device *dev;
+
+ struct work_struct tx_work;
+ unsigned long tx_state;
+ struct sk_buff_head txq;
+
+ struct sk_buff *evt_skb;
+
+ const struct btmtksdio_data *data;
+};
+
+static int mtk_hci_wmt_sync(struct hci_dev *hdev,
+ struct btmtk_hci_wmt_params *wmt_params)
+{
+ struct btmtksdio_dev *bdev = hci_get_drvdata(hdev);
+ struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
+ u32 hlen, status = BTMTK_WMT_INVALID;
+ struct btmtk_hci_wmt_evt *wmt_evt;
+ struct mtk_hci_wmt_cmd wc;
+ struct mtk_wmt_hdr *hdr;
+ int err;
+
+ hlen = sizeof(*hdr) + wmt_params->dlen;
+ if (hlen > 255)
+ return -EINVAL;
+
+ hdr = (struct mtk_wmt_hdr *)&wc;
+ hdr->dir = 1;
+ hdr->op = wmt_params->op;
+ hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
+ hdr->flag = wmt_params->flag;
+ memcpy(wc.data, wmt_params->data, wmt_params->dlen);
+
+ set_bit(BTMTKSDIO_TX_WAIT_VND_EVT, &bdev->tx_state);
+
+ err = __hci_cmd_send(hdev, 0xfc6f, hlen, &wc);
+ if (err < 0) {
+ clear_bit(BTMTKSDIO_TX_WAIT_VND_EVT, &bdev->tx_state);
+ return err;
+ }
+
+ /* The vendor specific WMT commands are all answered by a vendor
+ * specific event and will not have the Command Status or Command
+ * Complete as with usual HCI command flow control.
+ *
+ * After sending the command, wait for BTMTKSDIO_TX_WAIT_VND_EVT
+ * state to be cleared. The driver specific event receive routine
+ * will clear that state and with that indicate completion of the
+ * WMT command.
+ */
+ err = wait_on_bit_timeout(&bdev->tx_state, BTMTKSDIO_TX_WAIT_VND_EVT,
+ TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
+ if (err == -EINTR) {
+ bt_dev_err(hdev, "Execution of wmt command interrupted");
+ clear_bit(BTMTKSDIO_TX_WAIT_VND_EVT, &bdev->tx_state);
+ return err;
+ }
+
+ if (err) {
+ bt_dev_err(hdev, "Execution of wmt command timed out");
+ clear_bit(BTMTKSDIO_TX_WAIT_VND_EVT, &bdev->tx_state);
+ return -ETIMEDOUT;
+ }
+
+ /* Parse and handle the return WMT event */
+ wmt_evt = (struct btmtk_hci_wmt_evt *)bdev->evt_skb->data;
+ if (wmt_evt->whdr.op != hdr->op) {
+ bt_dev_err(hdev, "Wrong op received %d expected %d",
+ wmt_evt->whdr.op, hdr->op);
+ err = -EIO;
+ goto err_free_skb;
+ }
+
+ switch (wmt_evt->whdr.op) {
+ case MTK_WMT_SEMAPHORE:
+ if (wmt_evt->whdr.flag == 2)
+ status = BTMTK_WMT_PATCH_UNDONE;
+ else
+ status = BTMTK_WMT_PATCH_DONE;
+ break;
+ case MTK_WMT_FUNC_CTRL:
+ wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
+ if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
+ status = BTMTK_WMT_ON_DONE;
+ else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
+ status = BTMTK_WMT_ON_PROGRESS;
+ else
+ status = BTMTK_WMT_ON_UNDONE;
+ break;
+ }
+
+ if (wmt_params->status)
+ *wmt_params->status = status;
+
+err_free_skb:
+ kfree_skb(bdev->evt_skb);
+ bdev->evt_skb = NULL;
+
+ return err;
+}
+
+static int btmtksdio_tx_packet(struct btmtksdio_dev *bdev,
+ struct sk_buff *skb)
+{
+ struct mtkbtsdio_hdr *sdio_hdr;
+ int err;
+
+ /* Make sure that there are enough rooms for SDIO header */
+ if (unlikely(skb_headroom(skb) < sizeof(*sdio_hdr))) {
+ err = pskb_expand_head(skb, sizeof(*sdio_hdr), 0,
+ GFP_ATOMIC);
+ if (err < 0)
+ return err;
+ }
+
+ /* Prepend MediaTek SDIO Specific Header */
+ skb_push(skb, sizeof(*sdio_hdr));
+
+ sdio_hdr = (void *)skb->data;
+ sdio_hdr->len = cpu_to_le16(skb->len);
+ sdio_hdr->reserved = cpu_to_le16(0);
+ sdio_hdr->bt_type = hci_skb_pkt_type(skb);
+
+ err = sdio_writesb(bdev->func, MTK_REG_CTDR, skb->data,
+ round_up(skb->len, MTK_SDIO_BLOCK_SIZE));
+ if (err < 0)
+ goto err_skb_pull;
+
+ bdev->hdev->stat.byte_tx += skb->len;
+
+ kfree_skb(skb);
+
+ return 0;
+
+err_skb_pull:
+ skb_pull(skb, sizeof(*sdio_hdr));
+
+ return err;
+}
+
+static u32 btmtksdio_drv_own_query(struct btmtksdio_dev *bdev)
+{
+ return sdio_readl(bdev->func, MTK_REG_CHLPCR, NULL);
+}
+
+static void btmtksdio_tx_work(struct work_struct *work)
+{
+ struct btmtksdio_dev *bdev = container_of(work, struct btmtksdio_dev,
+ tx_work);
+ struct sk_buff *skb;
+ int err;
+
+ pm_runtime_get_sync(bdev->dev);
+
+ sdio_claim_host(bdev->func);
+
+ while ((skb = skb_dequeue(&bdev->txq))) {
+ err = btmtksdio_tx_packet(bdev, skb);
+ if (err < 0) {
+ bdev->hdev->stat.err_tx++;
+ skb_queue_head(&bdev->txq, skb);
+ break;
+ }
+ }
+
+ sdio_release_host(bdev->func);
+
+ pm_runtime_mark_last_busy(bdev->dev);
+ pm_runtime_put_autosuspend(bdev->dev);
+}
+
+static int btmtksdio_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct btmtksdio_dev *bdev = hci_get_drvdata(hdev);
+ struct hci_event_hdr *hdr = (void *)skb->data;
+ int err;
+
+ /* Fix up the vendor event id with 0xff for vendor specific instead
+ * of 0xe4 so that event send via monitoring socket can be parsed
+ * properly.
+ */
+ if (hdr->evt == 0xe4)
+ hdr->evt = HCI_EV_VENDOR;
+
+ /* When someone waits for the WMT event, the skb is being cloned
+ * and being processed the events from there then.
+ */
+ if (test_bit(BTMTKSDIO_TX_WAIT_VND_EVT, &bdev->tx_state)) {
+ bdev->evt_skb = skb_clone(skb, GFP_KERNEL);
+ if (!bdev->evt_skb) {
+ err = -ENOMEM;
+ goto err_out;
+ }
+ }
+
+ err = hci_recv_frame(hdev, skb);
+ if (err < 0)
+ goto err_free_skb;
+
+ if (hdr->evt == HCI_EV_VENDOR) {
+ if (test_and_clear_bit(BTMTKSDIO_TX_WAIT_VND_EVT,
+ &bdev->tx_state)) {
+ /* Barrier to sync with other CPUs */
+ smp_mb__after_atomic();
+ wake_up_bit(&bdev->tx_state, BTMTKSDIO_TX_WAIT_VND_EVT);
+ }
+ }
+
+ return 0;
+
+err_free_skb:
+ kfree_skb(bdev->evt_skb);
+ bdev->evt_skb = NULL;
+
+err_out:
+ return err;
+}
+
+static const struct h4_recv_pkt mtk_recv_pkts[] = {
+ { H4_RECV_ACL, .recv = hci_recv_frame },
+ { H4_RECV_SCO, .recv = hci_recv_frame },
+ { H4_RECV_EVENT, .recv = btmtksdio_recv_event },
+};
+
+static int btmtksdio_rx_packet(struct btmtksdio_dev *bdev, u16 rx_size)
+{
+ const struct h4_recv_pkt *pkts = mtk_recv_pkts;
+ int pkts_count = ARRAY_SIZE(mtk_recv_pkts);
+ struct mtkbtsdio_hdr *sdio_hdr;
+ int err, i, pad_size;
+ struct sk_buff *skb;
+ u16 dlen;
+
+ if (rx_size < sizeof(*sdio_hdr))
+ return -EILSEQ;
+
+ /* A SDIO packet is exactly containing a Bluetooth packet */
+ skb = bt_skb_alloc(rx_size, GFP_KERNEL);
+ if (!skb)
+ return -ENOMEM;
+
+ skb_put(skb, rx_size);
+
+ err = sdio_readsb(bdev->func, skb->data, MTK_REG_CRDR, rx_size);
+ if (err < 0)
+ goto err_kfree_skb;
+
+ sdio_hdr = (void *)skb->data;
+
+ /* We assume the default error as -EILSEQ simply to make the error path
+ * be cleaner.
+ */
+ err = -EILSEQ;
+
+ if (rx_size != le16_to_cpu(sdio_hdr->len)) {
+ bt_dev_err(bdev->hdev, "Rx size in sdio header is mismatched ");
+ goto err_kfree_skb;
+ }
+
+ hci_skb_pkt_type(skb) = sdio_hdr->bt_type;
+
+ /* Remove MediaTek SDIO header */
+ skb_pull(skb, sizeof(*sdio_hdr));
+
+ /* We have to dig into the packet to get payload size and then know how
+ * many padding bytes at the tail, these padding bytes should be removed
+ * before the packet is indicated to the core layer.
+ */
+ for (i = 0; i < pkts_count; i++) {
+ if (sdio_hdr->bt_type == (&pkts[i])->type)
+ break;
+ }
+
+ if (i >= pkts_count) {
+ bt_dev_err(bdev->hdev, "Invalid bt type 0x%02x",
+ sdio_hdr->bt_type);
+ goto err_kfree_skb;
+ }
+
+ /* Remaining bytes cannot hold a header*/
+ if (skb->len < (&pkts[i])->hlen) {
+ bt_dev_err(bdev->hdev, "The size of bt header is mismatched");
+ goto err_kfree_skb;
+ }
+
+ switch ((&pkts[i])->lsize) {
+ case 1:
+ dlen = skb->data[(&pkts[i])->loff];
+ break;
+ case 2:
+ dlen = get_unaligned_le16(skb->data +
+ (&pkts[i])->loff);
+ break;
+ default:
+ goto err_kfree_skb;
+ }
+
+ pad_size = skb->len - (&pkts[i])->hlen - dlen;
+
+ /* Remaining bytes cannot hold a payload */
+ if (pad_size < 0) {
+ bt_dev_err(bdev->hdev, "The size of bt payload is mismatched");
+ goto err_kfree_skb;
+ }
+
+ /* Remove padding bytes */
+ skb_trim(skb, skb->len - pad_size);
+
+ /* Complete frame */
+ (&pkts[i])->recv(bdev->hdev, skb);
+
+ bdev->hdev->stat.byte_rx += rx_size;
+
+ return 0;
+
+err_kfree_skb:
+ kfree_skb(skb);
+
+ return err;
+}
+
+static void btmtksdio_interrupt(struct sdio_func *func)
+{
+ struct btmtksdio_dev *bdev = sdio_get_drvdata(func);
+ u32 int_status;
+ u16 rx_size;
+
+ /* It is required that the host gets ownership from the device before
+ * accessing any register, however, if SDIO host is not being released,
+ * a potential deadlock probably happens in a circular wait between SDIO
+ * IRQ work and PM runtime work. So, we have to explicitly release SDIO
+ * host here and claim again after the PM runtime work is all done.
+ */
+ sdio_release_host(bdev->func);
+
+ pm_runtime_get_sync(bdev->dev);
+
+ sdio_claim_host(bdev->func);
+
+ /* Disable interrupt */
+ sdio_writel(func, C_INT_EN_CLR, MTK_REG_CHLPCR, 0);
+
+ int_status = sdio_readl(func, MTK_REG_CHISR, NULL);
+
+ /* Ack an interrupt as soon as possible before any operation on
+ * hardware.
+ *
+ * Note that we don't ack any status during operations to avoid race
+ * condition between the host and the device such as it's possible to
+ * mistakenly ack RX_DONE for the next packet and then cause interrupts
+ * not be raised again but there is still pending data in the hardware
+ * FIFO.
+ */
+ sdio_writel(func, int_status, MTK_REG_CHISR, NULL);
+
+ if (unlikely(!int_status))
+ bt_dev_err(bdev->hdev, "CHISR is 0");
+
+ if (int_status & FW_OWN_BACK_INT)
+ bt_dev_dbg(bdev->hdev, "Get fw own back");
+
+ if (int_status & TX_EMPTY)
+ schedule_work(&bdev->tx_work);
+ else if (unlikely(int_status & TX_FIFO_OVERFLOW))
+ bt_dev_warn(bdev->hdev, "Tx fifo overflow");
+
+ if (int_status & RX_DONE_INT) {
+ rx_size = (int_status & RX_PKT_LEN) >> 16;
+
+ if (btmtksdio_rx_packet(bdev, rx_size) < 0)
+ bdev->hdev->stat.err_rx++;
+ }
+
+ /* Enable interrupt */
+ sdio_writel(func, C_INT_EN_SET, MTK_REG_CHLPCR, 0);
+
+ pm_runtime_mark_last_busy(bdev->dev);
+ pm_runtime_put_autosuspend(bdev->dev);
+}
+
+static int btmtksdio_open(struct hci_dev *hdev)
+{
+ struct btmtksdio_dev *bdev = hci_get_drvdata(hdev);
+ int err;
+ u32 status;
+
+ sdio_claim_host(bdev->func);
+
+ err = sdio_enable_func(bdev->func);
+ if (err < 0)
+ goto err_release_host;
+
+ /* Get ownership from the device */
+ sdio_writel(bdev->func, C_FW_OWN_REQ_CLR, MTK_REG_CHLPCR, &err);
+ if (err < 0)
+ goto err_disable_func;
+
+ err = readx_poll_timeout(btmtksdio_drv_own_query, bdev, status,
+ status & C_COM_DRV_OWN, 2000, 1000000);
+ if (err < 0) {
+ bt_dev_err(bdev->hdev, "Cannot get ownership from device");
+ goto err_disable_func;
+ }
+
+ /* Disable interrupt & mask out all interrupt sources */
+ sdio_writel(bdev->func, C_INT_EN_CLR, MTK_REG_CHLPCR, &err);
+ if (err < 0)
+ goto err_disable_func;
+
+ sdio_writel(bdev->func, 0, MTK_REG_CHIER, &err);
+ if (err < 0)
+ goto err_disable_func;
+
+ err = sdio_claim_irq(bdev->func, btmtksdio_interrupt);
+ if (err < 0)
+ goto err_disable_func;
+
+ err = sdio_set_block_size(bdev->func, MTK_SDIO_BLOCK_SIZE);
+ if (err < 0)
+ goto err_release_irq;
+
+ /* SDIO CMD 5 allows the SDIO device back to idle state an
+ * synchronous interrupt is supported in SDIO 4-bit mode
+ */
+ sdio_writel(bdev->func, SDIO_INT_CTL | SDIO_RE_INIT_EN,
+ MTK_REG_CSDIOCSR, &err);
+ if (err < 0)
+ goto err_release_irq;
+
+ /* Setup write-1-clear for CHISR register */
+ sdio_writel(bdev->func, C_INT_CLR_CTRL, MTK_REG_CHCR, &err);
+ if (err < 0)
+ goto err_release_irq;
+
+ /* Setup interrupt sources */
+ sdio_writel(bdev->func, RX_DONE_INT | TX_EMPTY | TX_FIFO_OVERFLOW,
+ MTK_REG_CHIER, &err);
+ if (err < 0)
+ goto err_release_irq;
+
+ /* Enable interrupt */
+ sdio_writel(bdev->func, C_INT_EN_SET, MTK_REG_CHLPCR, &err);
+ if (err < 0)
+ goto err_release_irq;
+
+ sdio_release_host(bdev->func);
+
+ return 0;
+
+err_release_irq:
+ sdio_release_irq(bdev->func);
+
+err_disable_func:
+ sdio_disable_func(bdev->func);
+
+err_release_host:
+ sdio_release_host(bdev->func);
+
+ return err;
+}
+
+static int btmtksdio_close(struct hci_dev *hdev)
+{
+ struct btmtksdio_dev *bdev = hci_get_drvdata(hdev);
+ u32 status;
+ int err;
+
+ sdio_claim_host(bdev->func);
+
+ /* Disable interrupt */
+ sdio_writel(bdev->func, C_INT_EN_CLR, MTK_REG_CHLPCR, NULL);
+
+ sdio_release_irq(bdev->func);
+
+ /* Return ownership to the device */
+ sdio_writel(bdev->func, C_FW_OWN_REQ_SET, MTK_REG_CHLPCR, NULL);
+
+ err = readx_poll_timeout(btmtksdio_drv_own_query, bdev, status,
+ !(status & C_COM_DRV_OWN), 2000, 1000000);
+ if (err < 0)
+ bt_dev_err(bdev->hdev, "Cannot return ownership to device");
+
+ sdio_disable_func(bdev->func);
+
+ sdio_release_host(bdev->func);
+
+ return 0;
+}
+
+static int btmtksdio_flush(struct hci_dev *hdev)
+{
+ struct btmtksdio_dev *bdev = hci_get_drvdata(hdev);
+
+ skb_queue_purge(&bdev->txq);
+
+ cancel_work_sync(&bdev->tx_work);
+
+ return 0;
+}
+
+static int btmtksdio_func_query(struct hci_dev *hdev)
+{
+ struct btmtk_hci_wmt_params wmt_params;
+ int status, err;
+ u8 param = 0;
+
+ /* Query whether the function is enabled */
+ wmt_params.op = MTK_WMT_FUNC_CTRL;
+ wmt_params.flag = 4;
+ wmt_params.dlen = sizeof(param);
+ wmt_params.data = ¶m;
+ wmt_params.status = &status;
+
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to query function status (%d)", err);
+ return err;
+ }
+
+ return status;
+}
+
+static int mtk_setup_firmware(struct hci_dev *hdev, const char *fwname)
+{
+ struct btmtk_hci_wmt_params wmt_params;
+ const struct firmware *fw;
+ const u8 *fw_ptr;
+ size_t fw_size;
+ int err, dlen;
+ u8 flag;
+
+ err = request_firmware(&fw, fwname, &hdev->dev);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
+ return err;
+ }
+
+ fw_ptr = fw->data;
+ fw_size = fw->size;
+
+ /* The size of patch header is 30 bytes, should be skip */
+ if (fw_size < 30) {
+ err = -EINVAL;
+ goto free_fw;
+ }
+
+ fw_size -= 30;
+ fw_ptr += 30;
+ flag = 1;
+
+ wmt_params.op = MTK_WMT_PATCH_DWNLD;
+ wmt_params.status = NULL;
+
+ while (fw_size > 0) {
+ dlen = min_t(int, 250, fw_size);
+
+ /* Tell device the position in sequence */
+ if (fw_size - dlen <= 0)
+ flag = 3;
+ else if (fw_size < fw->size - 30)
+ flag = 2;
+
+ wmt_params.flag = flag;
+ wmt_params.dlen = dlen;
+ wmt_params.data = fw_ptr;
+
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
+ err);
+ goto free_fw;
+ }
+
+ fw_size -= dlen;
+ fw_ptr += dlen;
+ }
+
+ wmt_params.op = MTK_WMT_RST;
+ wmt_params.flag = 4;
+ wmt_params.dlen = 0;
+ wmt_params.data = NULL;
+ wmt_params.status = NULL;
+
+ /* Activate funciton the firmware providing to */
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
+ goto free_fw;
+ }
+
+ /* Wait a few moments for firmware activation done */
+ usleep_range(10000, 12000);
+
+free_fw:
+ release_firmware(fw);
+ return err;
+}
+
+static int btmtksdio_setup(struct hci_dev *hdev)
+{
+ struct btmtksdio_dev *bdev = hci_get_drvdata(hdev);
+ struct btmtk_hci_wmt_params wmt_params;
+ ktime_t calltime, delta, rettime;
+ struct btmtk_tci_sleep tci_sleep;
+ unsigned long long duration;
+ struct sk_buff *skb;
+ int err, status;
+ u8 param = 0x1;
+
+ calltime = ktime_get();
+
+ /* Query whether the firmware is already download */
+ wmt_params.op = MTK_WMT_SEMAPHORE;
+ wmt_params.flag = 1;
+ wmt_params.dlen = 0;
+ wmt_params.data = NULL;
+ wmt_params.status = &status;
+
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
+ return err;
+ }
+
+ if (status == BTMTK_WMT_PATCH_DONE) {
+ bt_dev_info(hdev, "Firmware already downloaded");
+ goto ignore_setup_fw;
+ }
+
+ /* Setup a firmware which the device definitely requires */
+ err = mtk_setup_firmware(hdev, bdev->data->fwname);
+ if (err < 0)
+ return err;
+
+ignore_setup_fw:
+ /* Query whether the device is already enabled */
+ err = readx_poll_timeout(btmtksdio_func_query, hdev, status,
+ status < 0 || status != BTMTK_WMT_ON_PROGRESS,
+ 2000, 5000000);
+ /* -ETIMEDOUT happens */
+ if (err < 0)
+ return err;
+
+ /* The other errors happen in btusb_mtk_func_query */
+ if (status < 0)
+ return status;
+
+ if (status == BTMTK_WMT_ON_DONE) {
+ bt_dev_info(hdev, "function already on");
+ goto ignore_func_on;
+ }
+
+ /* Enable Bluetooth protocol */
+ wmt_params.op = MTK_WMT_FUNC_CTRL;
+ wmt_params.flag = 0;
+ wmt_params.dlen = sizeof(param);
+ wmt_params.data = ¶m;
+ wmt_params.status = NULL;
+
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
+ return err;
+ }
+
+ignore_func_on:
+ /* Apply the low power environment setup */
+ tci_sleep.mode = 0x5;
+ tci_sleep.duration = cpu_to_le16(0x640);
+ tci_sleep.host_duration = cpu_to_le16(0x640);
+ tci_sleep.host_wakeup_pin = 0;
+ tci_sleep.time_compensation = 0;
+
+ skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
+ HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
+ return err;
+ }
+ kfree_skb(skb);
+
+ rettime = ktime_get();
+ delta = ktime_sub(rettime, calltime);
+ duration = (unsigned long long)ktime_to_ns(delta) >> 10;
+
+ pm_runtime_set_autosuspend_delay(bdev->dev,
+ MTKBTSDIO_AUTOSUSPEND_DELAY);
+ pm_runtime_use_autosuspend(bdev->dev);
+
+ err = pm_runtime_set_active(bdev->dev);
+ if (err < 0)
+ return err;
+
+ /* Default forbid runtime auto suspend, that can be allowed by
+ * enable_autosuspend flag or the PM runtime entry under sysfs.
+ */
+ pm_runtime_forbid(bdev->dev);
+ pm_runtime_enable(bdev->dev);
+
+ if (enable_autosuspend)
+ pm_runtime_allow(bdev->dev);
+
+ bt_dev_info(hdev, "Device setup in %llu usecs", duration);
+
+ return 0;
+}
+
+static int btmtksdio_shutdown(struct hci_dev *hdev)
+{
+ struct btmtksdio_dev *bdev = hci_get_drvdata(hdev);
+ struct btmtk_hci_wmt_params wmt_params;
+ u8 param = 0x0;
+ int err;
+
+ /* Get back the state to be consistent with the state
+ * in btmtksdio_setup.
+ */
+ pm_runtime_get_sync(bdev->dev);
+
+ /* Disable the device */
+ wmt_params.op = MTK_WMT_FUNC_CTRL;
+ wmt_params.flag = 0;
+ wmt_params.dlen = sizeof(param);
+ wmt_params.data = ¶m;
+ wmt_params.status = NULL;
+
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
+ return err;
+ }
+
+ pm_runtime_put_noidle(bdev->dev);
+ pm_runtime_disable(bdev->dev);
+
+ return 0;
+}
+
+static int btmtksdio_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct btmtksdio_dev *bdev = hci_get_drvdata(hdev);
+
+ switch (hci_skb_pkt_type(skb)) {
+ case HCI_COMMAND_PKT:
+ hdev->stat.cmd_tx++;
+ break;
+
+ case HCI_ACLDATA_PKT:
+ hdev->stat.acl_tx++;
+ break;
+
+ case HCI_SCODATA_PKT:
+ hdev->stat.sco_tx++;
+ break;
+
+ default:
+ return -EILSEQ;
+ }
+
+ skb_queue_tail(&bdev->txq, skb);
+
+ schedule_work(&bdev->tx_work);
+
+ return 0;
+}
+
+static int btmtksdio_probe(struct sdio_func *func,
+ const struct sdio_device_id *id)
+{
+ struct btmtksdio_dev *bdev;
+ struct hci_dev *hdev;
+ int err;
+
+ bdev = devm_kzalloc(&func->dev, sizeof(*bdev), GFP_KERNEL);
+ if (!bdev)
+ return -ENOMEM;
+
+ bdev->data = (void *)id->driver_data;
+ if (!bdev->data)
+ return -ENODEV;
+
+ bdev->dev = &func->dev;
+ bdev->func = func;
+
+ INIT_WORK(&bdev->tx_work, btmtksdio_tx_work);
+ skb_queue_head_init(&bdev->txq);
+
+ /* Initialize and register HCI device */
+ hdev = hci_alloc_dev();
+ if (!hdev) {
+ dev_err(&func->dev, "Can't allocate HCI device\n");
+ return -ENOMEM;
+ }
+
+ bdev->hdev = hdev;
+
+ hdev->bus = HCI_SDIO;
+ hci_set_drvdata(hdev, bdev);
+
+ hdev->open = btmtksdio_open;
+ hdev->close = btmtksdio_close;
+ hdev->flush = btmtksdio_flush;
+ hdev->setup = btmtksdio_setup;
+ hdev->shutdown = btmtksdio_shutdown;
+ hdev->send = btmtksdio_send_frame;
+ SET_HCIDEV_DEV(hdev, &func->dev);
+
+ hdev->manufacturer = 70;
+ set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
+
+ err = hci_register_dev(hdev);
+ if (err < 0) {
+ dev_err(&func->dev, "Can't register HCI device\n");
+ hci_free_dev(hdev);
+ return err;
+ }
+
+ sdio_set_drvdata(func, bdev);
+
+ /* pm_runtime_enable would be done after the firmware is being
+ * downloaded because the core layer probably already enables
+ * runtime PM for this func such as the case host->caps &
+ * MMC_CAP_POWER_OFF_CARD.
+ */
+ if (pm_runtime_enabled(bdev->dev))
+ pm_runtime_disable(bdev->dev);
+
+ /* As explaination in drivers/mmc/core/sdio_bus.c tells us:
+ * Unbound SDIO functions are always suspended.
+ * During probe, the function is set active and the usage count
+ * is incremented. If the driver supports runtime PM,
+ * it should call pm_runtime_put_noidle() in its probe routine and
+ * pm_runtime_get_noresume() in its remove routine.
+ *
+ * So, put a pm_runtime_put_noidle here !
+ */
+ pm_runtime_put_noidle(bdev->dev);
+
+ return 0;
+}
+
+static void btmtksdio_remove(struct sdio_func *func)
+{
+ struct btmtksdio_dev *bdev = sdio_get_drvdata(func);
+ struct hci_dev *hdev;
+
+ if (!bdev)
+ return;
+
+ /* Be consistent the state in btmtksdio_probe */
+ pm_runtime_get_noresume(bdev->dev);
+
+ hdev = bdev->hdev;
+
+ sdio_set_drvdata(func, NULL);
+ hci_unregister_dev(hdev);
+ hci_free_dev(hdev);
+}
+
+#ifdef CONFIG_PM
+static int btmtksdio_runtime_suspend(struct device *dev)
+{
+ struct sdio_func *func = dev_to_sdio_func(dev);
+ struct btmtksdio_dev *bdev;
+ u32 status;
+ int err;
+
+ bdev = sdio_get_drvdata(func);
+ if (!bdev)
+ return 0;
+
+ sdio_claim_host(bdev->func);
+
+ sdio_writel(bdev->func, C_FW_OWN_REQ_SET, MTK_REG_CHLPCR, &err);
+ if (err < 0)
+ goto out;
+
+ err = readx_poll_timeout(btmtksdio_drv_own_query, bdev, status,
+ !(status & C_COM_DRV_OWN), 2000, 1000000);
+out:
+ bt_dev_info(bdev->hdev, "status (%d) return ownership to device", err);
+
+ sdio_release_host(bdev->func);
+
+ return err;
+}
+
+static int btmtksdio_runtime_resume(struct device *dev)
+{
+ struct sdio_func *func = dev_to_sdio_func(dev);
+ struct btmtksdio_dev *bdev;
+ u32 status;
+ int err;
+
+ bdev = sdio_get_drvdata(func);
+ if (!bdev)
+ return 0;
+
+ sdio_claim_host(bdev->func);
+
+ sdio_writel(bdev->func, C_FW_OWN_REQ_CLR, MTK_REG_CHLPCR, &err);
+ if (err < 0)
+ goto out;
+
+ err = readx_poll_timeout(btmtksdio_drv_own_query, bdev, status,
+ status & C_COM_DRV_OWN, 2000, 1000000);
+out:
+ bt_dev_info(bdev->hdev, "status (%d) get ownership from device", err);
+
+ sdio_release_host(bdev->func);
+
+ return err;
+}
+
+static UNIVERSAL_DEV_PM_OPS(btmtksdio_pm_ops, btmtksdio_runtime_suspend,
+ btmtksdio_runtime_resume, NULL);
+#define BTMTKSDIO_PM_OPS (&btmtksdio_pm_ops)
+#else /* CONFIG_PM */
+#define BTMTKSDIO_PM_OPS NULL
+#endif /* CONFIG_PM */
+
+static struct sdio_driver btmtksdio_driver = {
+ .name = "btmtksdio",
+ .probe = btmtksdio_probe,
+ .remove = btmtksdio_remove,
+ .id_table = btmtksdio_table,
+ .drv = {
+ .owner = THIS_MODULE,
+ .pm = BTMTKSDIO_PM_OPS,
+ }
+};
+
+module_sdio_driver(btmtksdio_driver);
+
+module_param(enable_autosuspend, bool, 0644);
+MODULE_PARM_DESC(enable_autosuspend, "Enable autosuspend by default");
+
+MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
+MODULE_DESCRIPTION("MediaTek Bluetooth SDIO driver ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(FIRMWARE_MT7663);
+MODULE_FIRMWARE(FIRMWARE_MT7668);
diff --git a/drivers/bluetooth/btmtkuart.c b/drivers/bluetooth/btmtkuart.c
index 4593baf..e11169a 100644
--- a/drivers/bluetooth/btmtkuart.c
+++ b/drivers/bluetooth/btmtkuart.c
@@ -12,10 +12,15 @@
#include <linux/atomic.h>
#include <linux/clk.h>
#include <linux/firmware.h>
+#include <linux/gpio/consumer.h>
+#include <linux/iopoll.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/pinctrl/consumer.h>
#include <linux/pm_runtime.h>
+#include <linux/regulator/consumer.h>
#include <linux/serdev.h>
#include <linux/skbuff.h>
@@ -24,20 +29,38 @@
#include "h4_recv.h"
-#define VERSION "0.1"
+#define VERSION "0.2"
#define FIRMWARE_MT7622 "mediatek/mt7622pr2h.bin"
+#define FIRMWARE_MT7663 "mediatek/mt7663pr2h.bin"
+#define FIRMWARE_MT7668 "mediatek/mt7668pr2h.bin"
#define MTK_STP_TLR_SIZE 2
#define BTMTKUART_TX_STATE_ACTIVE 1
#define BTMTKUART_TX_STATE_WAKEUP 2
#define BTMTKUART_TX_WAIT_VND_EVT 3
+#define BTMTKUART_REQUIRED_WAKEUP 4
+
+#define BTMTKUART_FLAG_STANDALONE_HW BIT(0)
enum {
MTK_WMT_PATCH_DWNLD = 0x1,
+ MTK_WMT_TEST = 0x2,
+ MTK_WMT_WAKEUP = 0x3,
+ MTK_WMT_HIF = 0x4,
MTK_WMT_FUNC_CTRL = 0x6,
- MTK_WMT_RST = 0x7
+ MTK_WMT_RST = 0x7,
+ MTK_WMT_SEMAPHORE = 0x17,
+};
+
+enum {
+ BTMTK_WMT_INVALID,
+ BTMTK_WMT_PATCH_UNDONE,
+ BTMTK_WMT_PATCH_DONE,
+ BTMTK_WMT_ON_UNDONE,
+ BTMTK_WMT_ON_DONE,
+ BTMTK_WMT_ON_PROGRESS,
};
struct mtk_stp_hdr {
@@ -46,6 +69,11 @@
u8 cs;
} __packed;
+struct btmtkuart_data {
+ unsigned int flags;
+ const char *fwname;
+};
+
struct mtk_wmt_hdr {
u8 dir;
u8 op;
@@ -58,41 +86,87 @@
u8 data[256];
} __packed;
+struct btmtk_hci_wmt_evt {
+ struct hci_event_hdr hhdr;
+ struct mtk_wmt_hdr whdr;
+} __packed;
+
+struct btmtk_hci_wmt_evt_funcc {
+ struct btmtk_hci_wmt_evt hwhdr;
+ __be16 status;
+} __packed;
+
+struct btmtk_tci_sleep {
+ u8 mode;
+ __le16 duration;
+ __le16 host_duration;
+ u8 host_wakeup_pin;
+ u8 time_compensation;
+} __packed;
+
+struct btmtk_hci_wmt_params {
+ u8 op;
+ u8 flag;
+ u16 dlen;
+ const void *data;
+ u32 *status;
+};
+
struct btmtkuart_dev {
struct hci_dev *hdev;
struct serdev_device *serdev;
+
struct clk *clk;
+ struct clk *osc;
+ struct regulator *vcc;
+ struct gpio_desc *reset;
+ struct gpio_desc *boot;
+ struct pinctrl *pinctrl;
+ struct pinctrl_state *pins_runtime;
+ struct pinctrl_state *pins_boot;
+ speed_t desired_speed;
+ speed_t curr_speed;
struct work_struct tx_work;
unsigned long tx_state;
struct sk_buff_head txq;
struct sk_buff *rx_skb;
+ struct sk_buff *evt_skb;
u8 stp_pad[6];
u8 stp_cursor;
u16 stp_dlen;
+
+ const struct btmtkuart_data *data;
};
-static int mtk_hci_wmt_sync(struct hci_dev *hdev, u8 op, u8 flag, u16 plen,
- const void *param)
+#define btmtkuart_is_standalone(bdev) \
+ ((bdev)->data->flags & BTMTKUART_FLAG_STANDALONE_HW)
+#define btmtkuart_is_builtin_soc(bdev) \
+ !((bdev)->data->flags & BTMTKUART_FLAG_STANDALONE_HW)
+
+static int mtk_hci_wmt_sync(struct hci_dev *hdev,
+ struct btmtk_hci_wmt_params *wmt_params)
{
struct btmtkuart_dev *bdev = hci_get_drvdata(hdev);
+ struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
+ u32 hlen, status = BTMTK_WMT_INVALID;
+ struct btmtk_hci_wmt_evt *wmt_evt;
struct mtk_hci_wmt_cmd wc;
struct mtk_wmt_hdr *hdr;
- u32 hlen;
int err;
- hlen = sizeof(*hdr) + plen;
+ hlen = sizeof(*hdr) + wmt_params->dlen;
if (hlen > 255)
return -EINVAL;
hdr = (struct mtk_wmt_hdr *)&wc;
hdr->dir = 1;
- hdr->op = op;
- hdr->dlen = cpu_to_le16(plen + 1);
- hdr->flag = flag;
- memcpy(wc.data, param, plen);
+ hdr->op = wmt_params->op;
+ hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
+ hdr->flag = wmt_params->flag;
+ memcpy(wc.data, wmt_params->data, wmt_params->dlen);
set_bit(BTMTKUART_TX_WAIT_VND_EVT, &bdev->tx_state);
@@ -107,7 +181,7 @@
* Complete as with usual HCI command flow control.
*
* After sending the command, wait for BTMTKUART_TX_WAIT_VND_EVT
- * state to be cleared. The driver speicfic event receive routine
+ * state to be cleared. The driver specific event receive routine
* will clear that state and with that indicate completion of the
* WMT command.
*/
@@ -115,26 +189,63 @@
TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
if (err == -EINTR) {
bt_dev_err(hdev, "Execution of wmt command interrupted");
+ clear_bit(BTMTKUART_TX_WAIT_VND_EVT, &bdev->tx_state);
return err;
}
if (err) {
bt_dev_err(hdev, "Execution of wmt command timed out");
+ clear_bit(BTMTKUART_TX_WAIT_VND_EVT, &bdev->tx_state);
return -ETIMEDOUT;
}
- return 0;
+ /* Parse and handle the return WMT event */
+ wmt_evt = (struct btmtk_hci_wmt_evt *)bdev->evt_skb->data;
+ if (wmt_evt->whdr.op != hdr->op) {
+ bt_dev_err(hdev, "Wrong op received %d expected %d",
+ wmt_evt->whdr.op, hdr->op);
+ err = -EIO;
+ goto err_free_skb;
+ }
+
+ switch (wmt_evt->whdr.op) {
+ case MTK_WMT_SEMAPHORE:
+ if (wmt_evt->whdr.flag == 2)
+ status = BTMTK_WMT_PATCH_UNDONE;
+ else
+ status = BTMTK_WMT_PATCH_DONE;
+ break;
+ case MTK_WMT_FUNC_CTRL:
+ wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
+ if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
+ status = BTMTK_WMT_ON_DONE;
+ else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
+ status = BTMTK_WMT_ON_PROGRESS;
+ else
+ status = BTMTK_WMT_ON_UNDONE;
+ break;
+ }
+
+ if (wmt_params->status)
+ *wmt_params->status = status;
+
+err_free_skb:
+ kfree_skb(bdev->evt_skb);
+ bdev->evt_skb = NULL;
+
+ return err;
}
-static int mtk_setup_fw(struct hci_dev *hdev)
+static int mtk_setup_firmware(struct hci_dev *hdev, const char *fwname)
{
+ struct btmtk_hci_wmt_params wmt_params;
const struct firmware *fw;
const u8 *fw_ptr;
size_t fw_size;
int err, dlen;
u8 flag;
- err = request_firmware(&fw, FIRMWARE_MT7622, &hdev->dev);
+ err = request_firmware(&fw, fwname, &hdev->dev);
if (err < 0) {
bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
return err;
@@ -153,6 +264,9 @@
fw_ptr += 30;
flag = 1;
+ wmt_params.op = MTK_WMT_PATCH_DWNLD;
+ wmt_params.status = NULL;
+
while (fw_size > 0) {
dlen = min_t(int, 250, fw_size);
@@ -162,18 +276,37 @@
else if (fw_size < fw->size - 30)
flag = 2;
- err = mtk_hci_wmt_sync(hdev, MTK_WMT_PATCH_DWNLD, flag, dlen,
- fw_ptr);
+ wmt_params.flag = flag;
+ wmt_params.dlen = dlen;
+ wmt_params.data = fw_ptr;
+
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
if (err < 0) {
bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
err);
- break;
+ goto free_fw;
}
fw_size -= dlen;
fw_ptr += dlen;
}
+ wmt_params.op = MTK_WMT_RST;
+ wmt_params.flag = 4;
+ wmt_params.dlen = 0;
+ wmt_params.data = NULL;
+ wmt_params.status = NULL;
+
+ /* Activate funciton the firmware providing to */
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
+ goto free_fw;
+ }
+
+ /* Wait a few moments for firmware activation done */
+ usleep_range(10000, 12000);
+
free_fw:
release_firmware(fw);
return err;
@@ -192,7 +325,20 @@
if (hdr->evt == 0xe4)
hdr->evt = HCI_EV_VENDOR;
+ /* When someone waits for the WMT event, the skb is being cloned
+ * and being processed the events from there then.
+ */
+ if (test_bit(BTMTKUART_TX_WAIT_VND_EVT, &bdev->tx_state)) {
+ bdev->evt_skb = skb_clone(skb, GFP_KERNEL);
+ if (!bdev->evt_skb) {
+ err = -ENOMEM;
+ goto err_out;
+ }
+ }
+
err = hci_recv_frame(hdev, skb);
+ if (err < 0)
+ goto err_free_skb;
if (hdr->evt == HCI_EV_VENDOR) {
if (test_and_clear_bit(BTMTKUART_TX_WAIT_VND_EVT,
@@ -203,6 +349,13 @@
}
}
+ return 0;
+
+err_free_skb:
+ kfree_skb(bdev->evt_skb);
+ bdev->evt_skb = NULL;
+
+err_out:
return err;
}
@@ -404,6 +557,23 @@
goto err_open;
}
+ if (btmtkuart_is_standalone(bdev)) {
+ if (bdev->curr_speed != bdev->desired_speed)
+ err = serdev_device_set_baudrate(bdev->serdev,
+ 115200);
+ else
+ err = serdev_device_set_baudrate(bdev->serdev,
+ bdev->desired_speed);
+
+ if (err < 0) {
+ bt_dev_err(hdev, "Unable to set baudrate UART device %s",
+ dev_name(&bdev->serdev->dev));
+ goto err_serdev_close;
+ }
+
+ serdev_device_set_flow_control(bdev->serdev, false);
+ }
+
bdev->stp_cursor = 2;
bdev->stp_dlen = 0;
@@ -427,6 +597,8 @@
pm_runtime_put_sync(dev);
err_disable_rpm:
pm_runtime_disable(dev);
+err_serdev_close:
+ serdev_device_close(bdev->serdev);
err_open:
return err;
}
@@ -465,42 +637,222 @@
return 0;
}
-static int btmtkuart_setup(struct hci_dev *hdev)
+static int btmtkuart_func_query(struct hci_dev *hdev)
{
- u8 param = 0x1;
- int err = 0;
+ struct btmtk_hci_wmt_params wmt_params;
+ int status, err;
+ u8 param = 0;
- /* Setup a firmware which the device definitely requires */
- err = mtk_setup_fw(hdev);
- if (err < 0)
- return err;
+ /* Query whether the function is enabled */
+ wmt_params.op = MTK_WMT_FUNC_CTRL;
+ wmt_params.flag = 4;
+ wmt_params.dlen = sizeof(param);
+ wmt_params.data = ¶m;
+ wmt_params.status = &status;
- /* Activate function the firmware providing to */
- err = mtk_hci_wmt_sync(hdev, MTK_WMT_RST, 0x4, 0, 0);
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
if (err < 0) {
- bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
+ bt_dev_err(hdev, "Failed to query function status (%d)", err);
return err;
}
+ return status;
+}
+
+static int btmtkuart_change_baudrate(struct hci_dev *hdev)
+{
+ struct btmtkuart_dev *bdev = hci_get_drvdata(hdev);
+ struct btmtk_hci_wmt_params wmt_params;
+ __le32 baudrate;
+ u8 param;
+ int err;
+
+ /* Indicate the device to enter the probe state the host is
+ * ready to change a new baudrate.
+ */
+ baudrate = cpu_to_le32(bdev->desired_speed);
+ wmt_params.op = MTK_WMT_HIF;
+ wmt_params.flag = 1;
+ wmt_params.dlen = 4;
+ wmt_params.data = &baudrate;
+ wmt_params.status = NULL;
+
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to device baudrate (%d)", err);
+ return err;
+ }
+
+ err = serdev_device_set_baudrate(bdev->serdev,
+ bdev->desired_speed);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to set up host baudrate (%d)",
+ err);
+ return err;
+ }
+
+ serdev_device_set_flow_control(bdev->serdev, false);
+
+ /* Send a dummy byte 0xff to activate the new baudrate */
+ param = 0xff;
+ err = serdev_device_write(bdev->serdev, ¶m, sizeof(param),
+ MAX_SCHEDULE_TIMEOUT);
+ if (err < 0 || err < sizeof(param))
+ return err;
+
+ serdev_device_wait_until_sent(bdev->serdev, 0);
+
+ /* Wait some time for the device changing baudrate done */
+ usleep_range(20000, 22000);
+
+ /* Test the new baudrate */
+ wmt_params.op = MTK_WMT_TEST;
+ wmt_params.flag = 7;
+ wmt_params.dlen = 0;
+ wmt_params.data = NULL;
+ wmt_params.status = NULL;
+
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to test new baudrate (%d)",
+ err);
+ return err;
+ }
+
+ bdev->curr_speed = bdev->desired_speed;
+
+ return 0;
+}
+
+static int btmtkuart_setup(struct hci_dev *hdev)
+{
+ struct btmtkuart_dev *bdev = hci_get_drvdata(hdev);
+ struct btmtk_hci_wmt_params wmt_params;
+ ktime_t calltime, delta, rettime;
+ struct btmtk_tci_sleep tci_sleep;
+ unsigned long long duration;
+ struct sk_buff *skb;
+ int err, status;
+ u8 param = 0x1;
+
+ calltime = ktime_get();
+
+ /* Wakeup MCUSYS is required for certain devices before we start to
+ * do any setups.
+ */
+ if (test_bit(BTMTKUART_REQUIRED_WAKEUP, &bdev->tx_state)) {
+ wmt_params.op = MTK_WMT_WAKEUP;
+ wmt_params.flag = 3;
+ wmt_params.dlen = 0;
+ wmt_params.data = NULL;
+ wmt_params.status = NULL;
+
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to wakeup the chip (%d)", err);
+ return err;
+ }
+
+ clear_bit(BTMTKUART_REQUIRED_WAKEUP, &bdev->tx_state);
+ }
+
+ if (btmtkuart_is_standalone(bdev))
+ btmtkuart_change_baudrate(hdev);
+
+ /* Query whether the firmware is already download */
+ wmt_params.op = MTK_WMT_SEMAPHORE;
+ wmt_params.flag = 1;
+ wmt_params.dlen = 0;
+ wmt_params.data = NULL;
+ wmt_params.status = &status;
+
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
+ return err;
+ }
+
+ if (status == BTMTK_WMT_PATCH_DONE) {
+ bt_dev_info(hdev, "Firmware already downloaded");
+ goto ignore_setup_fw;
+ }
+
+ /* Setup a firmware which the device definitely requires */
+ err = mtk_setup_firmware(hdev, bdev->data->fwname);
+ if (err < 0)
+ return err;
+
+ignore_setup_fw:
+ /* Query whether the device is already enabled */
+ err = readx_poll_timeout(btmtkuart_func_query, hdev, status,
+ status < 0 || status != BTMTK_WMT_ON_PROGRESS,
+ 2000, 5000000);
+ /* -ETIMEDOUT happens */
+ if (err < 0)
+ return err;
+
+ /* The other errors happen in btusb_mtk_func_query */
+ if (status < 0)
+ return status;
+
+ if (status == BTMTK_WMT_ON_DONE) {
+ bt_dev_info(hdev, "function already on");
+ goto ignore_func_on;
+ }
+
/* Enable Bluetooth protocol */
- err = mtk_hci_wmt_sync(hdev, MTK_WMT_FUNC_CTRL, 0x0, sizeof(param),
- ¶m);
+ wmt_params.op = MTK_WMT_FUNC_CTRL;
+ wmt_params.flag = 0;
+ wmt_params.dlen = sizeof(param);
+ wmt_params.data = ¶m;
+ wmt_params.status = NULL;
+
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
if (err < 0) {
bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
return err;
}
+ignore_func_on:
+ /* Apply the low power environment setup */
+ tci_sleep.mode = 0x5;
+ tci_sleep.duration = cpu_to_le16(0x640);
+ tci_sleep.host_duration = cpu_to_le16(0x640);
+ tci_sleep.host_wakeup_pin = 0;
+ tci_sleep.time_compensation = 0;
+
+ skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
+ HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
+ return err;
+ }
+ kfree_skb(skb);
+
+ rettime = ktime_get();
+ delta = ktime_sub(rettime, calltime);
+ duration = (unsigned long long)ktime_to_ns(delta) >> 10;
+
+ bt_dev_info(hdev, "Device setup in %llu usecs", duration);
+
return 0;
}
static int btmtkuart_shutdown(struct hci_dev *hdev)
{
+ struct btmtk_hci_wmt_params wmt_params;
u8 param = 0x0;
int err;
/* Disable the device */
- err = mtk_hci_wmt_sync(hdev, MTK_WMT_FUNC_CTRL, 0x0, sizeof(param),
- ¶m);
+ wmt_params.op = MTK_WMT_FUNC_CTRL;
+ wmt_params.flag = 0;
+ wmt_params.dlen = sizeof(param);
+ wmt_params.data = ¶m;
+ wmt_params.status = NULL;
+
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
if (err < 0) {
bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
return err;
@@ -543,24 +895,97 @@
return 0;
}
+static int btmtkuart_parse_dt(struct serdev_device *serdev)
+{
+ struct btmtkuart_dev *bdev = serdev_device_get_drvdata(serdev);
+ struct device_node *node = serdev->dev.of_node;
+ u32 speed = 921600;
+ int err;
+
+ if (btmtkuart_is_standalone(bdev)) {
+ of_property_read_u32(node, "current-speed", &speed);
+
+ bdev->desired_speed = speed;
+
+ bdev->vcc = devm_regulator_get(&serdev->dev, "vcc");
+ if (IS_ERR(bdev->vcc)) {
+ err = PTR_ERR(bdev->vcc);
+ return err;
+ }
+
+ bdev->osc = devm_clk_get_optional(&serdev->dev, "osc");
+ if (IS_ERR(bdev->osc)) {
+ err = PTR_ERR(bdev->osc);
+ return err;
+ }
+
+ bdev->boot = devm_gpiod_get_optional(&serdev->dev, "boot",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(bdev->boot)) {
+ err = PTR_ERR(bdev->boot);
+ return err;
+ }
+
+ bdev->pinctrl = devm_pinctrl_get(&serdev->dev);
+ if (IS_ERR(bdev->pinctrl)) {
+ err = PTR_ERR(bdev->pinctrl);
+ return err;
+ }
+
+ bdev->pins_boot = pinctrl_lookup_state(bdev->pinctrl,
+ "default");
+ if (IS_ERR(bdev->pins_boot) && !bdev->boot) {
+ err = PTR_ERR(bdev->pins_boot);
+ dev_err(&serdev->dev,
+ "Should assign RXD to LOW at boot stage\n");
+ return err;
+ }
+
+ bdev->pins_runtime = pinctrl_lookup_state(bdev->pinctrl,
+ "runtime");
+ if (IS_ERR(bdev->pins_runtime)) {
+ err = PTR_ERR(bdev->pins_runtime);
+ return err;
+ }
+
+ bdev->reset = devm_gpiod_get_optional(&serdev->dev, "reset",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(bdev->reset)) {
+ err = PTR_ERR(bdev->reset);
+ return err;
+ }
+ } else if (btmtkuart_is_builtin_soc(bdev)) {
+ bdev->clk = devm_clk_get(&serdev->dev, "ref");
+ if (IS_ERR(bdev->clk))
+ return PTR_ERR(bdev->clk);
+ }
+
+ return 0;
+}
+
static int btmtkuart_probe(struct serdev_device *serdev)
{
struct btmtkuart_dev *bdev;
struct hci_dev *hdev;
+ int err;
bdev = devm_kzalloc(&serdev->dev, sizeof(*bdev), GFP_KERNEL);
if (!bdev)
return -ENOMEM;
- bdev->clk = devm_clk_get(&serdev->dev, "ref");
- if (IS_ERR(bdev->clk))
- return PTR_ERR(bdev->clk);
+ bdev->data = of_device_get_match_data(&serdev->dev);
+ if (!bdev->data)
+ return -ENODEV;
bdev->serdev = serdev;
serdev_device_set_drvdata(serdev, bdev);
serdev_device_set_client_ops(serdev, &btmtkuart_client_ops);
+ err = btmtkuart_parse_dt(serdev);
+ if (err < 0)
+ return err;
+
INIT_WORK(&bdev->tx_work, btmtkuart_tx_work);
skb_queue_head_init(&bdev->txq);
@@ -587,13 +1012,68 @@
hdev->manufacturer = 70;
set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
- if (hci_register_dev(hdev) < 0) {
+ if (btmtkuart_is_standalone(bdev)) {
+ err = clk_prepare_enable(bdev->osc);
+ if (err < 0)
+ return err;
+
+ if (bdev->boot) {
+ gpiod_set_value_cansleep(bdev->boot, 1);
+ } else {
+ /* Switch to the specific pin state for the booting
+ * requires.
+ */
+ pinctrl_select_state(bdev->pinctrl, bdev->pins_boot);
+ }
+
+ /* Power on */
+ err = regulator_enable(bdev->vcc);
+ if (err < 0) {
+ clk_disable_unprepare(bdev->osc);
+ return err;
+ }
+
+ /* Reset if the reset-gpios is available otherwise the board
+ * -level design should be guaranteed.
+ */
+ if (bdev->reset) {
+ gpiod_set_value_cansleep(bdev->reset, 1);
+ usleep_range(1000, 2000);
+ gpiod_set_value_cansleep(bdev->reset, 0);
+ }
+
+ /* Wait some time until device got ready and switch to the pin
+ * mode the device requires for UART transfers.
+ */
+ msleep(50);
+
+ if (bdev->boot)
+ devm_gpiod_put(&serdev->dev, bdev->boot);
+
+ pinctrl_select_state(bdev->pinctrl, bdev->pins_runtime);
+
+ /* A standalone device doesn't depends on power domain on SoC,
+ * so mark it as no callbacks.
+ */
+ pm_runtime_no_callbacks(&serdev->dev);
+
+ set_bit(BTMTKUART_REQUIRED_WAKEUP, &bdev->tx_state);
+ }
+
+ err = hci_register_dev(hdev);
+ if (err < 0) {
dev_err(&serdev->dev, "Can't register HCI device\n");
hci_free_dev(hdev);
- return -ENODEV;
+ goto err_regulator_disable;
}
return 0;
+
+err_regulator_disable:
+ if (btmtkuart_is_standalone(bdev))
+ regulator_disable(bdev->vcc);
+
+ return err;
}
static void btmtkuart_remove(struct serdev_device *serdev)
@@ -601,13 +1081,34 @@
struct btmtkuart_dev *bdev = serdev_device_get_drvdata(serdev);
struct hci_dev *hdev = bdev->hdev;
+ if (btmtkuart_is_standalone(bdev)) {
+ regulator_disable(bdev->vcc);
+ clk_disable_unprepare(bdev->osc);
+ }
+
hci_unregister_dev(hdev);
hci_free_dev(hdev);
}
+static const struct btmtkuart_data mt7622_data = {
+ .fwname = FIRMWARE_MT7622,
+};
+
+static const struct btmtkuart_data mt7663_data = {
+ .flags = BTMTKUART_FLAG_STANDALONE_HW,
+ .fwname = FIRMWARE_MT7663,
+};
+
+static const struct btmtkuart_data mt7668_data = {
+ .flags = BTMTKUART_FLAG_STANDALONE_HW,
+ .fwname = FIRMWARE_MT7668,
+};
+
#ifdef CONFIG_OF
static const struct of_device_id mtk_of_match_table[] = {
- { .compatible = "mediatek,mt7622-bluetooth"},
+ { .compatible = "mediatek,mt7622-bluetooth", .data = &mt7622_data},
+ { .compatible = "mediatek,mt7663u-bluetooth", .data = &mt7663_data},
+ { .compatible = "mediatek,mt7668u-bluetooth", .data = &mt7668_data},
{ }
};
MODULE_DEVICE_TABLE(of, mtk_of_match_table);
@@ -629,3 +1130,5 @@
MODULE_VERSION(VERSION);
MODULE_LICENSE("GPL");
MODULE_FIRMWARE(FIRMWARE_MT7622);
+MODULE_FIRMWARE(FIRMWARE_MT7663);
+MODULE_FIRMWARE(FIRMWARE_MT7668);
diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
index ec9e03a..8cc21ad 100644
--- a/drivers/bluetooth/btqca.c
+++ b/drivers/bluetooth/btqca.c
@@ -1,21 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Bluetooth supports for Qualcomm Atheros chips
*
* Copyright (c) 2015 The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/module.h>
#include <linux/firmware.h>
@@ -112,6 +99,28 @@
return 0;
}
+int qca_send_pre_shutdown_cmd(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+ int err;
+
+ bt_dev_dbg(hdev, "QCA pre shutdown cmd");
+
+ skb = __hci_cmd_sync_ev(hdev, QCA_PRE_SHUTDOWN_CMD, 0,
+ NULL, HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
+
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ bt_dev_err(hdev, "QCA preshutdown_cmd failed (%d)", err);
+ return err;
+ }
+
+ kfree_skb(skb);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(qca_send_pre_shutdown_cmd);
+
static void qca_tlv_check_data(struct rome_config *config,
const struct firmware *fw)
{
@@ -132,6 +141,7 @@
BT_DBG("Length\t\t : %d bytes", length);
config->dnld_mode = ROME_SKIP_EVT_NONE;
+ config->dnld_type = ROME_SKIP_EVT_NONE;
switch (config->type) {
case TLV_TYPE_PATCH:
@@ -144,6 +154,7 @@
* In case VSE is skipped, only the last segment is acked.
*/
config->dnld_mode = tlv_patch->download_mode;
+ config->dnld_type = config->dnld_mode;
BT_DBG("Total Length : %d bytes",
le32_to_cpu(tlv_patch->total_size));
@@ -264,6 +275,31 @@
return err;
}
+static int qca_inject_cmd_complete_event(struct hci_dev *hdev)
+{
+ struct hci_event_hdr *hdr;
+ struct hci_ev_cmd_complete *evt;
+ struct sk_buff *skb;
+
+ skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
+ if (!skb)
+ return -ENOMEM;
+
+ hdr = skb_put(skb, sizeof(*hdr));
+ hdr->evt = HCI_EV_CMD_COMPLETE;
+ hdr->plen = sizeof(*evt) + 1;
+
+ evt = skb_put(skb, sizeof(*evt));
+ evt->ncmd = 1;
+ evt->opcode = cpu_to_le16(QCA_HCI_CC_OPCODE);
+
+ skb_put_u8(skb, QCA_HCI_CC_SUCCESS);
+
+ hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
+
+ return hci_recv_frame(hdev, skb);
+}
+
static int qca_download_firmware(struct hci_dev *hdev,
struct rome_config *config)
{
@@ -297,11 +333,22 @@
ret = qca_tlv_send_segment(hdev, segsize, segment,
config->dnld_mode);
if (ret)
- break;
+ goto out;
segment += segsize;
}
+ /* Latest qualcomm chipsets are not sending a command complete event
+ * for every fw packet sent. They only respond with a vendor specific
+ * event for the last packet. This optimization in the chip will
+ * decrease the BT in initialization time. Here we will inject a command
+ * complete event to avoid a command timeout error message.
+ */
+ if (config->dnld_type == ROME_SKIP_EVT_VSE_CC ||
+ config->dnld_type == ROME_SKIP_EVT_VSE)
+ ret = qca_inject_cmd_complete_event(hdev);
+
+out:
release_firmware(fw);
return ret;
@@ -332,11 +379,12 @@
EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome);
int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
- enum qca_btsoc_type soc_type, u32 soc_ver)
+ enum qca_btsoc_type soc_type, u32 soc_ver,
+ const char *firmware_name)
{
struct rome_config config;
int err;
- u8 rom_ver;
+ u8 rom_ver = 0;
bt_dev_dbg(hdev, "QCA setup on UART");
@@ -344,7 +392,7 @@
/* Download rampatch file */
config.type = TLV_TYPE_PATCH;
- if (soc_type == QCA_WCN3990) {
+ if (qca_is_wcn399x(soc_type)) {
/* Firmware files to download are based on ROM version.
* ROM version is derived from last two bytes of soc_ver.
*/
@@ -363,9 +411,15 @@
return err;
}
+ /* Give the controller some time to get ready to receive the NVM */
+ msleep(10);
+
/* Download NVM configuration */
config.type = TLV_TYPE_NVM;
- if (soc_type == QCA_WCN3990)
+ if (firmware_name)
+ snprintf(config.fwname, sizeof(config.fwname),
+ "qca/%s", firmware_name);
+ else if (qca_is_wcn399x(soc_type))
snprintf(config.fwname, sizeof(config.fwname),
"qca/crnv%02x.bin", rom_ver);
else
@@ -391,6 +445,26 @@
}
EXPORT_SYMBOL_GPL(qca_uart_setup);
+int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
+{
+ struct sk_buff *skb;
+ int err;
+
+ skb = __hci_cmd_sync_ev(hdev, EDL_WRITE_BD_ADDR_OPCODE, 6, bdaddr,
+ HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ bt_dev_err(hdev, "QCA Change address cmd failed (%d)", err);
+ return err;
+ }
+
+ kfree_skb(skb);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(qca_set_bdaddr);
+
+
MODULE_AUTHOR("Ben Young Tae Kim <ytkim@qca.qualcomm.com>");
MODULE_DESCRIPTION("Bluetooth support for Qualcomm Atheros family ver " VERSION);
MODULE_VERSION(VERSION);
diff --git a/drivers/bluetooth/btqca.h b/drivers/bluetooth/btqca.h
index 0c01f37..69c5315 100644
--- a/drivers/bluetooth/btqca.h
+++ b/drivers/bluetooth/btqca.h
@@ -1,30 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Bluetooth supports for Qualcomm Atheros ROME chips
*
* Copyright (c) 2015 The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#define EDL_PATCH_CMD_OPCODE (0xFC00)
#define EDL_NVM_ACCESS_OPCODE (0xFC0B)
+#define EDL_WRITE_BD_ADDR_OPCODE (0xFC14)
#define EDL_PATCH_CMD_LEN (1)
#define EDL_PATCH_VER_REQ_CMD (0x19)
#define EDL_PATCH_TLV_REQ_CMD (0x1E)
#define EDL_NVM_ACCESS_SET_REQ_CMD (0x01)
#define MAX_SIZE_PER_TLV_SEGMENT (243)
+#define QCA_PRE_SHUTDOWN_CMD (0xFC08)
#define EDL_CMD_REQ_RES_EVT (0x00)
#define EDL_PATCH_VER_RES_EVT (0x19)
@@ -40,7 +29,10 @@
#define QCA_WCN3990_POWERON_PULSE 0xFC
#define QCA_WCN3990_POWEROFF_PULSE 0xC0
-enum qca_bardrate {
+#define QCA_HCI_CC_OPCODE 0xFC00
+#define QCA_HCI_CC_SUCCESS 0x00
+
+enum qca_baudrate {
QCA_BAUDRATE_115200 = 0,
QCA_BAUDRATE_57600,
QCA_BAUDRATE_38400,
@@ -81,6 +73,7 @@
char fwname[64];
uint8_t user_baud_rate;
enum rome_tlv_dnld_mode dnld_mode;
+ enum rome_tlv_dnld_mode dnld_type;
};
struct edl_event_hdr {
@@ -131,16 +124,23 @@
QCA_INVALID = -1,
QCA_AR3002,
QCA_ROME,
- QCA_WCN3990
+ QCA_WCN3990,
+ QCA_WCN3998,
};
#if IS_ENABLED(CONFIG_BT_QCA)
int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr);
int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
- enum qca_btsoc_type soc_type, u32 soc_ver);
+ enum qca_btsoc_type soc_type, u32 soc_ver,
+ const char *firmware_name);
int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version);
-
+int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr);
+int qca_send_pre_shutdown_cmd(struct hci_dev *hdev);
+static inline bool qca_is_wcn399x(enum qca_btsoc_type soc_type)
+{
+ return soc_type == QCA_WCN3990 || soc_type == QCA_WCN3998;
+}
#else
static inline int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr)
@@ -149,7 +149,8 @@
}
static inline int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
- enum qca_btsoc_type soc_type, u32 soc_ver)
+ enum qca_btsoc_type soc_type, u32 soc_ver,
+ const char *firmware_name)
{
return -EOPNOTSUPP;
}
@@ -159,4 +160,18 @@
return -EOPNOTSUPP;
}
+static inline int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline bool qca_is_wcn399x(enum qca_btsoc_type soc_type)
+{
+ return false;
+}
+
+static inline int qca_send_pre_shutdown_cmd(struct hci_dev *hdev)
+{
+ return -EOPNOTSUPP;
+}
#endif
diff --git a/drivers/bluetooth/btqcomsmd.c b/drivers/bluetooth/btqcomsmd.c
index 7df3eed..98d5376 100644
--- a/drivers/bluetooth/btqcomsmd.c
+++ b/drivers/bluetooth/btqcomsmd.c
@@ -1,15 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2016, Linaro Ltd.
* Copyright (c) 2015, Sony Mobile Communications Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
*/
#include <linux/module.h>
@@ -28,7 +20,6 @@
struct btqcomsmd {
struct hci_dev *hdev;
- bdaddr_t bdaddr;
struct rpmsg_endpoint *acl_channel;
struct rpmsg_endpoint *cmd_channel;
};
@@ -116,32 +107,17 @@
static int btqcomsmd_setup(struct hci_dev *hdev)
{
- struct btqcomsmd *btq = hci_get_drvdata(hdev);
struct sk_buff *skb;
- int err;
skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
if (IS_ERR(skb))
return PTR_ERR(skb);
kfree_skb(skb);
- /* Devices do not have persistent storage for BD address. If no
- * BD address has been retrieved during probe, mark the device
- * as having an invalid BD address.
+ /* Devices do not have persistent storage for BD address. Retrieve
+ * it from the firmware node property.
*/
- if (!bacmp(&btq->bdaddr, BDADDR_ANY)) {
- set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
- return 0;
- }
-
- /* When setting a configured BD address fails, mark the device
- * as having an invalid BD address.
- */
- err = qca_set_bdaddr_rome(hdev, &btq->bdaddr);
- if (err) {
- set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
- return 0;
- }
+ set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
return 0;
}
@@ -169,15 +145,6 @@
if (IS_ERR(btq->cmd_channel))
return PTR_ERR(btq->cmd_channel);
- /* The local-bd-address property is usually injected by the
- * bootloader which has access to the allocated BD address.
- */
- if (!of_property_read_u8_array(pdev->dev.of_node, "local-bd-address",
- (u8 *)&btq->bdaddr, sizeof(bdaddr_t))) {
- dev_info(&pdev->dev, "BD address %pMR retrieved from device-tree",
- &btq->bdaddr);
- }
-
hdev = hci_alloc_dev();
if (!hdev)
return -ENOMEM;
diff --git a/drivers/bluetooth/btrsi.c b/drivers/bluetooth/btrsi.c
index 60d1419..3951f7b 100644
--- a/drivers/bluetooth/btrsi.c
+++ b/drivers/bluetooth/btrsi.c
@@ -21,8 +21,9 @@
#include <net/rsi_91x.h>
#include <net/genetlink.h>
-#define RSI_HEADROOM_FOR_BT_HAL 16
+#define RSI_DMA_ALIGN 8
#define RSI_FRAME_DESC_SIZE 16
+#define RSI_HEADROOM_FOR_BT_HAL (RSI_FRAME_DESC_SIZE + RSI_DMA_ALIGN)
struct rsi_hci_adapter {
void *priv;
@@ -70,6 +71,16 @@
bt_cb(new_skb)->pkt_type = hci_skb_pkt_type(skb);
kfree_skb(skb);
skb = new_skb;
+ if (!IS_ALIGNED((unsigned long)skb->data, RSI_DMA_ALIGN)) {
+ u8 *skb_data = skb->data;
+ int skb_len = skb->len;
+
+ skb_push(skb, RSI_DMA_ALIGN);
+ skb_pull(skb, PTR_ALIGN(skb->data,
+ RSI_DMA_ALIGN) - skb->data);
+ memmove(skb->data, skb_data, skb_len);
+ skb_trim(skb, skb_len);
+ }
}
return h_adapter->proto_ops->coex_send_pkt(h_adapter->priv, skb,
diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 7f9ea8e..bf3c02b 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -1,18 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Bluetooth support for Realtek devices
*
* Copyright (C) 2015 Endless Mobile, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
*/
#include <linux/module.h>
@@ -31,6 +21,7 @@
#define RTL_ROM_LMP_3499 0x3499
#define RTL_ROM_LMP_8723A 0x1200
#define RTL_ROM_LMP_8723B 0x8723
+#define RTL_ROM_LMP_8723D 0x8873
#define RTL_ROM_LMP_8821A 0x8821
#define RTL_ROM_LMP_8761A 0x8761
#define RTL_ROM_LMP_8822B 0x8822
@@ -117,6 +108,13 @@
.fw_name = "rtl_bt/rtl8723ds_fw.bin",
.cfg_name = "rtl_bt/rtl8723ds_config" },
+ /* 8723DU */
+ { IC_INFO(RTL_ROM_LMP_8723D, 0x826C),
+ .config_needed = true,
+ .has_rom_version = true,
+ .fw_name = "rtl_bt/rtl8723d_fw.bin",
+ .cfg_name = "rtl_bt/rtl8723d_config" },
+
/* 8821A */
{ IC_INFO(RTL_ROM_LMP_8821A, 0xa),
.config_needed = false,
@@ -138,6 +136,13 @@
.fw_name = "rtl_bt/rtl8761a_fw.bin",
.cfg_name = "rtl_bt/rtl8761a_config" },
+ /* 8822C with USB interface */
+ { IC_INFO(RTL_ROM_LMP_8822B, 0xc),
+ .config_needed = false,
+ .has_rom_version = true,
+ .fw_name = "rtl_bt/rtl8822cu_fw.bin",
+ .cfg_name = "rtl_bt/rtl8822cu_config" },
+
/* 8822B */
{ IC_INFO(RTL_ROM_LMP_8822B, 0xb),
.config_needed = true,
@@ -173,6 +178,27 @@
return &ic_id_table[i];
}
+static struct sk_buff *btrtl_read_local_version(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+
+ skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
+ HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ rtl_dev_err(hdev, "HCI_OP_READ_LOCAL_VERSION failed (%ld)",
+ PTR_ERR(skb));
+ return skb;
+ }
+
+ if (skb->len != sizeof(struct hci_rp_read_local_version)) {
+ rtl_dev_err(hdev, "HCI_OP_READ_LOCAL_VERSION event length mismatch");
+ kfree_skb(skb);
+ return ERR_PTR(-EIO);
+ }
+
+ return skb;
+}
+
static int rtl_read_rom_version(struct hci_dev *hdev, u8 *version)
{
struct rtl_rom_version_evt *rom_version;
@@ -181,19 +207,19 @@
/* Read RTL ROM version command */
skb = __hci_cmd_sync(hdev, 0xfc6d, 0, NULL, HCI_INIT_TIMEOUT);
if (IS_ERR(skb)) {
- rtl_dev_err(hdev, "Read ROM version failed (%ld)\n",
+ rtl_dev_err(hdev, "Read ROM version failed (%ld)",
PTR_ERR(skb));
return PTR_ERR(skb);
}
if (skb->len != sizeof(*rom_version)) {
- rtl_dev_err(hdev, "RTL version event length mismatch\n");
+ rtl_dev_err(hdev, "version event length mismatch");
kfree_skb(skb);
return -EIO;
}
rom_version = (struct rtl_rom_version_evt *)skb->data;
- rtl_dev_info(hdev, "rom_version status=%x version=%x\n",
+ rtl_dev_info(hdev, "rom_version status=%x version=%x",
rom_version->status, rom_version->version);
*version = rom_version->version;
@@ -206,7 +232,7 @@
struct btrtl_device_info *btrtl_dev,
unsigned char **_buf)
{
- const u8 extension_sig[] = { 0x51, 0x04, 0xfd, 0x77 };
+ static const u8 extension_sig[] = { 0x51, 0x04, 0xfd, 0x77 };
struct rtl_epatch_header *epatch_info;
unsigned char *buf;
int i, len;
@@ -228,6 +254,7 @@
{ RTL_ROM_LMP_8822B, 8 },
{ RTL_ROM_LMP_8723B, 9 }, /* 8723D */
{ RTL_ROM_LMP_8821A, 10 }, /* 8821C */
+ { RTL_ROM_LMP_8822B, 13 }, /* 8822C */
};
min_size = sizeof(struct rtl_epatch_header) + sizeof(extension_sig) + 3;
@@ -236,7 +263,7 @@
fwptr = btrtl_dev->fw_data + btrtl_dev->fw_len - sizeof(extension_sig);
if (memcmp(fwptr, extension_sig, sizeof(extension_sig)) != 0) {
- rtl_dev_err(hdev, "extension section signature mismatch\n");
+ rtl_dev_err(hdev, "extension section signature mismatch");
return -EINVAL;
}
@@ -257,7 +284,7 @@
break;
if (length == 0) {
- rtl_dev_err(hdev, "found instruction with length 0\n");
+ rtl_dev_err(hdev, "found instruction with length 0");
return -EINVAL;
}
@@ -270,7 +297,7 @@
}
if (project_id < 0) {
- rtl_dev_err(hdev, "failed to find version instruction\n");
+ rtl_dev_err(hdev, "failed to find version instruction");
return -EINVAL;
}
@@ -281,13 +308,13 @@
}
if (i >= ARRAY_SIZE(project_id_to_lmp_subver)) {
- rtl_dev_err(hdev, "unknown project id %d\n", project_id);
+ rtl_dev_err(hdev, "unknown project id %d", project_id);
return -EINVAL;
}
if (btrtl_dev->ic_info->lmp_subver !=
project_id_to_lmp_subver[i].lmp_subver) {
- rtl_dev_err(hdev, "firmware is for %x but this is a %x\n",
+ rtl_dev_err(hdev, "firmware is for %x but this is a %x",
project_id_to_lmp_subver[i].lmp_subver,
btrtl_dev->ic_info->lmp_subver);
return -EINVAL;
@@ -295,7 +322,7 @@
epatch_info = (struct rtl_epatch_header *)btrtl_dev->fw_data;
if (memcmp(epatch_info->signature, RTL_EPATCH_SIGNATURE, 8) != 0) {
- rtl_dev_err(hdev, "bad EPATCH signature\n");
+ rtl_dev_err(hdev, "bad EPATCH signature");
return -EINVAL;
}
@@ -362,6 +389,8 @@
int frag_len = RTL_FRAG_LEN;
int ret = 0;
int i;
+ struct sk_buff *skb;
+ struct hci_rp_read_local_version *rp;
dl_cmd = kmalloc(sizeof(struct rtl_download_cmd), GFP_KERNEL);
if (!dl_cmd)
@@ -372,7 +401,11 @@
BT_DBG("download fw (%d/%d)", i, frag_num);
- dl_cmd->index = i;
+ if (i > 0x7f)
+ dl_cmd->index = (i & 0x7f) + 1;
+ else
+ dl_cmd->index = i;
+
if (i == (frag_num - 1)) {
dl_cmd->index |= 0x80; /* data end */
frag_len = fw_len % RTL_FRAG_LEN;
@@ -383,14 +416,14 @@
skb = __hci_cmd_sync(hdev, 0xfc20, frag_len + 1, dl_cmd,
HCI_INIT_TIMEOUT);
if (IS_ERR(skb)) {
- rtl_dev_err(hdev, "download fw command failed (%ld)\n",
+ rtl_dev_err(hdev, "download fw command failed (%ld)",
PTR_ERR(skb));
ret = -PTR_ERR(skb);
goto out;
}
if (skb->len != sizeof(struct rtl_download_response)) {
- rtl_dev_err(hdev, "download fw event length mismatch\n");
+ rtl_dev_err(hdev, "download fw event length mismatch");
kfree_skb(skb);
ret = -EIO;
goto out;
@@ -400,6 +433,18 @@
data += RTL_FRAG_LEN;
}
+ skb = btrtl_read_local_version(hdev);
+ if (IS_ERR(skb)) {
+ ret = PTR_ERR(skb);
+ rtl_dev_err(hdev, "read local version failed");
+ goto out;
+ }
+
+ rp = (struct hci_rp_read_local_version *)skb->data;
+ rtl_dev_info(hdev, "fw version 0x%04x%04x",
+ __le16_to_cpu(rp->hci_rev), __le16_to_cpu(rp->lmp_subver));
+ kfree_skb(skb);
+
out:
kfree(dl_cmd);
return ret;
@@ -410,7 +455,7 @@
const struct firmware *fw;
int ret;
- rtl_dev_info(hdev, "rtl: loading %s\n", name);
+ rtl_dev_info(hdev, "loading %s", name);
ret = request_firmware(&fw, name, &hdev->dev);
if (ret < 0)
return ret;
@@ -434,7 +479,7 @@
* (which is only for RTL8723B and newer).
*/
if (!memcmp(btrtl_dev->fw_data, RTL_EPATCH_SIGNATURE, 8)) {
- rtl_dev_err(hdev, "unexpected EPATCH signature!\n");
+ rtl_dev_err(hdev, "unexpected EPATCH signature!");
return -EINVAL;
}
@@ -469,7 +514,7 @@
fw_data = tbuff;
}
- rtl_dev_info(hdev, "cfg_sz %d, total sz %d\n", btrtl_dev->cfg_len, ret);
+ rtl_dev_info(hdev, "cfg_sz %d, total sz %d", btrtl_dev->cfg_len, ret);
ret = rtl_download_firmware(hdev, fw_data, ret);
@@ -478,27 +523,6 @@
return ret;
}
-static struct sk_buff *btrtl_read_local_version(struct hci_dev *hdev)
-{
- struct sk_buff *skb;
-
- skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
- HCI_INIT_TIMEOUT);
- if (IS_ERR(skb)) {
- rtl_dev_err(hdev, "HCI_OP_READ_LOCAL_VERSION failed (%ld)\n",
- PTR_ERR(skb));
- return skb;
- }
-
- if (skb->len != sizeof(struct hci_rp_read_local_version)) {
- rtl_dev_err(hdev, "HCI_OP_READ_LOCAL_VERSION event length mismatch\n");
- kfree_skb(skb);
- return ERR_PTR(-EIO);
- }
-
- return skb;
-}
-
void btrtl_free(struct btrtl_device_info *btrtl_dev)
{
kfree(btrtl_dev->fw_data);
@@ -531,7 +555,7 @@
}
resp = (struct hci_rp_read_local_version *)skb->data;
- rtl_dev_info(hdev, "rtl: examining hci_ver=%02x hci_rev=%04x lmp_ver=%02x lmp_subver=%04x\n",
+ rtl_dev_info(hdev, "examining hci_ver=%02x hci_rev=%04x lmp_ver=%02x lmp_subver=%04x",
resp->hci_ver, resp->hci_rev,
resp->lmp_ver, resp->lmp_subver);
@@ -544,10 +568,9 @@
hdev->bus);
if (!btrtl_dev->ic_info) {
- rtl_dev_err(hdev, "rtl: unknown IC info, lmp subver %04x, hci rev %04x, hci ver %04x",
+ rtl_dev_info(hdev, "unknown IC info, lmp subver %04x, hci rev %04x, hci ver %04x",
lmp_subver, hci_rev, hci_ver);
- ret = -EINVAL;
- goto err_free;
+ return btrtl_dev;
}
if (btrtl_dev->ic_info->has_rom_version) {
@@ -559,7 +582,7 @@
btrtl_dev->fw_len = rtl_load_file(hdev, btrtl_dev->ic_info->fw_name,
&btrtl_dev->fw_data);
if (btrtl_dev->fw_len < 0) {
- rtl_dev_err(hdev, "firmware file %s not found\n",
+ rtl_dev_err(hdev, "firmware file %s not found",
btrtl_dev->ic_info->fw_name);
ret = btrtl_dev->fw_len;
goto err_free;
@@ -577,7 +600,7 @@
&btrtl_dev->cfg_data);
if (btrtl_dev->ic_info->config_needed &&
btrtl_dev->cfg_len <= 0) {
- rtl_dev_err(hdev, "mandatory config file %s not found\n",
+ rtl_dev_err(hdev, "mandatory config file %s not found",
btrtl_dev->ic_info->cfg_name);
ret = btrtl_dev->cfg_len;
goto err_free;
@@ -602,6 +625,11 @@
* standard btusb. Once that firmware is uploaded, the subver changes
* to a different value.
*/
+ if (!btrtl_dev->ic_info) {
+ rtl_dev_info(hdev, "assuming no firmware upload needed");
+ return 0;
+ }
+
switch (btrtl_dev->ic_info->lmp_subver) {
case RTL_ROM_LMP_8723A:
case RTL_ROM_LMP_3499:
@@ -612,7 +640,7 @@
case RTL_ROM_LMP_8822B:
return btrtl_setup_rtl8723b(hdev, btrtl_dev);
default:
- rtl_dev_info(hdev, "rtl: assuming no firmware upload needed\n");
+ rtl_dev_info(hdev, "assuming no firmware upload needed");
return 0;
}
}
@@ -631,10 +659,35 @@
btrtl_free(btrtl_dev);
+ /* Enable controller to do both LE scan and BR/EDR inquiry
+ * simultaneously.
+ */
+ set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
+
return ret;
}
EXPORT_SYMBOL_GPL(btrtl_setup_realtek);
+int btrtl_shutdown_realtek(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+ int ret;
+
+ /* According to the vendor driver, BT must be reset on close to avoid
+ * firmware crash.
+ */
+ skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ ret = PTR_ERR(skb);
+ bt_dev_err(hdev, "HCI reset during shutdown failed");
+ return ret;
+ }
+ kfree_skb(skb);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(btrtl_shutdown_realtek);
+
static unsigned int btrtl_convert_baudrate(u32 device_baudrate)
{
switch (device_baudrate) {
@@ -684,18 +737,18 @@
total_data_len = btrtl_dev->cfg_len - sizeof(*config);
if (total_data_len <= 0) {
- rtl_dev_warn(hdev, "no config loaded\n");
+ rtl_dev_warn(hdev, "no config loaded");
return -EINVAL;
}
config = (struct rtl_vendor_config *)btrtl_dev->cfg_data;
if (le32_to_cpu(config->signature) != RTL_CONFIG_MAGIC) {
- rtl_dev_err(hdev, "invalid config magic\n");
+ rtl_dev_err(hdev, "invalid config magic");
return -EINVAL;
}
if (total_data_len < le16_to_cpu(config->total_len)) {
- rtl_dev_err(hdev, "config is too short\n");
+ rtl_dev_err(hdev, "config is too short");
return -EINVAL;
}
@@ -705,7 +758,7 @@
switch (le16_to_cpu(entry->offset)) {
case 0xc:
if (entry->len < sizeof(*device_baudrate)) {
- rtl_dev_err(hdev, "invalid UART config entry\n");
+ rtl_dev_err(hdev, "invalid UART config entry");
return -EINVAL;
}
@@ -722,7 +775,7 @@
break;
default:
- rtl_dev_dbg(hdev, "skipping config entry 0x%x (len %u)\n",
+ rtl_dev_dbg(hdev, "skipping config entry 0x%x (len %u)",
le16_to_cpu(entry->offset), entry->len);
break;
};
@@ -731,13 +784,13 @@
}
if (!found) {
- rtl_dev_err(hdev, "no UART config entry found\n");
+ rtl_dev_err(hdev, "no UART config entry found");
return -ENOENT;
}
- rtl_dev_dbg(hdev, "device baudrate = 0x%08x\n", *device_baudrate);
- rtl_dev_dbg(hdev, "controller baudrate = %u\n", *controller_baudrate);
- rtl_dev_dbg(hdev, "flow control %d\n", *flow_control);
+ rtl_dev_dbg(hdev, "device baudrate = 0x%08x", *device_baudrate);
+ rtl_dev_dbg(hdev, "controller baudrate = %u", *controller_baudrate);
+ rtl_dev_dbg(hdev, "flow control %d", *flow_control);
return 0;
}
diff --git a/drivers/bluetooth/btrtl.h b/drivers/bluetooth/btrtl.h
index f5e36f3..10ad40c 100644
--- a/drivers/bluetooth/btrtl.h
+++ b/drivers/bluetooth/btrtl.h
@@ -1,18 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Bluetooth support for Realtek devices
*
* Copyright (C) 2015 Endless Mobile, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
*/
#define RTL_FRAG_LEN 252
@@ -65,6 +55,7 @@
int btrtl_download_firmware(struct hci_dev *hdev,
struct btrtl_device_info *btrtl_dev);
int btrtl_setup_realtek(struct hci_dev *hdev);
+int btrtl_shutdown_realtek(struct hci_dev *hdev);
int btrtl_get_uart_settings(struct hci_dev *hdev,
struct btrtl_device_info *btrtl_dev,
unsigned int *controller_baudrate,
@@ -93,6 +84,11 @@
return -EOPNOTSUPP;
}
+static inline int btrtl_shutdown_realtek(struct hci_dev *hdev)
+{
+ return -EOPNOTSUPP;
+}
+
static inline int btrtl_get_uart_settings(struct hci_dev *hdev,
struct btrtl_device_info *btrtl_dev,
unsigned int *controller_baudrate,
diff --git a/drivers/bluetooth/btsdio.c b/drivers/bluetooth/btsdio.c
index 20142bc..fd9571d 100644
--- a/drivers/bluetooth/btsdio.c
+++ b/drivers/bluetooth/btsdio.c
@@ -1,25 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* Generic Bluetooth SDIO driver
*
* Copyright (C) 2007 Cambridge Silicon Radio Ltd.
* Copyright (C) 2007 Marcel Holtmann <marcel@holtmann.org>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/kernel.h>
@@ -293,13 +278,18 @@
tuple = tuple->next;
}
- /* BCM43341 devices soldered onto the PCB (non-removable) use an
- * uart connection for bluetooth, ignore the BT SDIO interface.
+ /* Broadcom devices soldered onto the PCB (non-removable) use an
+ * UART connection for Bluetooth, ignore the BT SDIO interface.
*/
if (func->vendor == SDIO_VENDOR_ID_BROADCOM &&
- func->device == SDIO_DEVICE_ID_BROADCOM_43341 &&
- !mmc_card_is_removable(func->card->host))
- return -ENODEV;
+ !mmc_card_is_removable(func->card->host)) {
+ switch (func->device) {
+ case SDIO_DEVICE_ID_BROADCOM_43341:
+ case SDIO_DEVICE_ID_BROADCOM_43430:
+ case SDIO_DEVICE_ID_BROADCOM_4356:
+ return -ENODEV;
+ }
+ }
data = devm_kzalloc(&func->dev, sizeof(*data), GFP_KERNEL);
if (!data)
@@ -372,20 +362,7 @@
.id_table = btsdio_table,
};
-static int __init btsdio_init(void)
-{
- BT_INFO("Generic Bluetooth SDIO driver ver %s", VERSION);
-
- return sdio_register_driver(&btsdio_driver);
-}
-
-static void __exit btsdio_exit(void)
-{
- sdio_unregister_driver(&btsdio_driver);
-}
-
-module_init(btsdio_init);
-module_exit(btsdio_exit);
+module_sdio_driver(btsdio_driver);
MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
MODULE_DESCRIPTION("Generic Bluetooth SDIO driver ver " VERSION);
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index cd2e5cf..a9c35eb 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -1,24 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* Generic Bluetooth USB driver
*
* Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/dmi.h>
@@ -26,9 +11,11 @@
#include <linux/usb.h>
#include <linux/usb/quirks.h>
#include <linux/firmware.h>
+#include <linux/iopoll.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/suspend.h>
+#include <linux/gpio/consumer.h>
#include <asm/unaligned.h>
#include <net/bluetooth/bluetooth.h>
@@ -69,6 +56,7 @@
#define BTUSB_BCM2045 0x40000
#define BTUSB_IFNUM_2 0x80000
#define BTUSB_CW6622 0x100000
+#define BTUSB_MEDIATEK 0x200000
static const struct usb_device_id btusb_table[] = {
/* Generic Bluetooth USB device */
@@ -264,6 +252,7 @@
{ USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
/* QCA ROME chipset */
+ { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME },
{ USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
{ USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME },
{ USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME },
@@ -277,7 +266,9 @@
{ USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME },
{ USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME },
{ USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME },
+ { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME },
{ USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME },
+ { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME },
/* Broadcom BCM2035 */
{ USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
@@ -343,6 +334,7 @@
/* Intel Bluetooth devices */
{ USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW },
{ USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW },
+ { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_NEW },
{ USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
{ USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
{ USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
@@ -358,6 +350,10 @@
{ USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
.driver_info = BTUSB_REALTEK },
+ /* MediaTek Bluetooth devices */
+ { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
+ .driver_info = BTUSB_MEDIATEK },
+
/* Additional Realtek 8723AE Bluetooth devices */
{ USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
{ USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
@@ -388,6 +384,9 @@
{ USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
{ USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
+ /* Additional Realtek 8822CE Bluetooth devices */
+ { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK },
+
/* Silicon Wave based devices */
{ USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
@@ -437,6 +436,9 @@
#define BTUSB_BOOTING 9
#define BTUSB_DIAG_RUNNING 10
#define BTUSB_OOB_WAKE_ENABLED 11
+#define BTUSB_HW_RESET_ACTIVE 12
+#define BTUSB_TX_WAIT_VND_EVT 13
+#define BTUSB_WAKEUP_DISABLE 14
struct btusb_data {
struct hci_dev *hdev;
@@ -460,6 +462,7 @@
struct usb_anchor bulk_anchor;
struct usb_anchor isoc_anchor;
struct usb_anchor diag_anchor;
+ struct usb_anchor ctrl_anchor;
spinlock_t rxlock;
struct sk_buff *evt_skb;
@@ -474,6 +477,8 @@
struct usb_endpoint_descriptor *diag_tx_ep;
struct usb_endpoint_descriptor *diag_rx_ep;
+ struct gpio_desc *reset_gpio;
+
__u8 cmdreq_type;
__u8 cmdreq;
@@ -487,8 +492,71 @@
int (*setup_on_usb)(struct hci_dev *hdev);
int oob_wake_irq; /* irq for out-of-band wake-on-bt */
+ unsigned cmd_timeout_cnt;
};
+
+static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct gpio_desc *reset_gpio = data->reset_gpio;
+
+ if (++data->cmd_timeout_cnt < 5)
+ return;
+
+ if (!reset_gpio) {
+ bt_dev_err(hdev, "No way to reset. Ignoring and continuing");
+ return;
+ }
+
+ /*
+ * Toggle the hard reset line if the platform provides one. The reset
+ * is going to yank the device off the USB and then replug. So doing
+ * once is enough. The cleanup is handled correctly on the way out
+ * (standard USB disconnect), and the new device is detected cleanly
+ * and bound to the driver again like it should be.
+ */
+ if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
+ bt_dev_err(hdev, "last reset failed? Not resetting again");
+ return;
+ }
+
+ bt_dev_err(hdev, "Initiating HW reset via gpio");
+ gpiod_set_value_cansleep(reset_gpio, 1);
+ msleep(100);
+ gpiod_set_value_cansleep(reset_gpio, 0);
+}
+
+static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct gpio_desc *reset_gpio = data->reset_gpio;
+
+ if (++data->cmd_timeout_cnt < 5)
+ return;
+
+ if (!reset_gpio) {
+ bt_dev_err(hdev, "No gpio to reset Realtek device, ignoring");
+ return;
+ }
+
+ /* Toggle the hard reset line. The Realtek device is going to
+ * yank itself off the USB and then replug. The cleanup is handled
+ * correctly on the way out (standard USB disconnect), and the new
+ * device is detected cleanly and bound to the driver again like
+ * it should be.
+ */
+ if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
+ bt_dev_err(hdev, "last reset failed? Not resetting again");
+ return;
+ }
+
+ bt_dev_err(hdev, "Reset Realtek device via gpio");
+ gpiod_set_value_cansleep(reset_gpio, 0);
+ msleep(200);
+ gpiod_set_value_cansleep(reset_gpio, 1);
+}
+
static inline void btusb_free_frags(struct btusb_data *data)
{
unsigned long flags;
@@ -1136,10 +1204,13 @@
}
data->intf->needs_remote_wakeup = 1;
- /* device specific wakeup source enabled and required for USB
- * remote wakeup while host is suspended
+
+ /* Disable device remote wakeup when host is suspended
+ * For Realtek chips, global suspend without
+ * SET_FEATURE (DEVICE_REMOTE_WAKEUP) can save more power in device.
*/
- device_wakeup_enable(&data->udev->dev);
+ if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
+ device_wakeup_disable(&data->udev->dev);
if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
goto done;
@@ -1178,6 +1249,7 @@
usb_kill_anchored_urbs(&data->bulk_anchor);
usb_kill_anchored_urbs(&data->isoc_anchor);
usb_kill_anchored_urbs(&data->diag_anchor);
+ usb_kill_anchored_urbs(&data->ctrl_anchor);
}
static int btusb_close(struct hci_dev *hdev)
@@ -1203,7 +1275,11 @@
goto failed;
data->intf->needs_remote_wakeup = 0;
- device_wakeup_disable(&data->udev->dev);
+
+ /* Enable remote wake up for auto-suspend */
+ if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
+ data->intf->needs_remote_wakeup = 1;
+
usb_autopm_put_interface(data->intf);
failed:
@@ -1934,10 +2010,8 @@
if (len != sizeof(*evt))
return;
- if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
- smp_mb__after_atomic();
+ if (test_and_clear_bit(BTUSB_BOOTING, &data->flags))
wake_up_bit(&data->flags, BTUSB_BOOTING);
- }
}
static void btusb_intel_secure_send_result(struct btusb_data *data,
@@ -1952,10 +2026,8 @@
set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
- test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
- smp_mb__after_atomic();
+ test_bit(BTUSB_FIRMWARE_LOADED, &data->flags))
wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
- }
}
static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
@@ -2054,6 +2126,35 @@
return -EILSEQ;
}
+static bool btusb_setup_intel_new_get_fw_name(struct intel_version *ver,
+ struct intel_boot_params *params,
+ char *fw_name, size_t len,
+ const char *suffix)
+{
+ switch (ver->hw_variant) {
+ case 0x0b: /* SfP */
+ case 0x0c: /* WsP */
+ snprintf(fw_name, len, "intel/ibt-%u-%u.%s",
+ le16_to_cpu(ver->hw_variant),
+ le16_to_cpu(params->dev_revid),
+ suffix);
+ break;
+ case 0x11: /* JfP */
+ case 0x12: /* ThP */
+ case 0x13: /* HrP */
+ case 0x14: /* CcP */
+ snprintf(fw_name, len, "intel/ibt-%u-%u-%u.%s",
+ le16_to_cpu(ver->hw_variant),
+ le16_to_cpu(ver->hw_revision),
+ le16_to_cpu(ver->fw_revision),
+ suffix);
+ break;
+ default:
+ return false;
+ }
+ return true;
+}
+
static int btusb_setup_intel_new(struct hci_dev *hdev)
{
struct btusb_data *data = hci_get_drvdata(hdev);
@@ -2105,7 +2206,7 @@
case 0x11: /* JfP */
case 0x12: /* ThP */
case 0x13: /* HrP */
- case 0x14: /* QnJ, IcP */
+ case 0x14: /* CcP */
break;
default:
bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)",
@@ -2189,23 +2290,9 @@
* ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi.
*
*/
- switch (ver.hw_variant) {
- case 0x0b: /* SfP */
- case 0x0c: /* WsP */
- snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi",
- le16_to_cpu(ver.hw_variant),
- le16_to_cpu(params.dev_revid));
- break;
- case 0x11: /* JfP */
- case 0x12: /* ThP */
- case 0x13: /* HrP */
- case 0x14: /* QnJ, IcP */
- snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.sfi",
- le16_to_cpu(ver.hw_variant),
- le16_to_cpu(ver.hw_revision),
- le16_to_cpu(ver.fw_revision));
- break;
- default:
+ err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, fwname,
+ sizeof(fwname), "sfi");
+ if (!err) {
bt_dev_err(hdev, "Unsupported Intel firmware naming");
return -EINVAL;
}
@@ -2221,23 +2308,9 @@
/* Save the DDC file name for later use to apply once the firmware
* downloading is done.
*/
- switch (ver.hw_variant) {
- case 0x0b: /* SfP */
- case 0x0c: /* WsP */
- snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc",
- le16_to_cpu(ver.hw_variant),
- le16_to_cpu(params.dev_revid));
- break;
- case 0x11: /* JfP */
- case 0x12: /* ThP */
- case 0x13: /* HrP */
- case 0x14: /* QnJ, IcP */
- snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.ddc",
- le16_to_cpu(ver.hw_variant),
- le16_to_cpu(ver.hw_revision),
- le16_to_cpu(ver.fw_revision));
- break;
- default:
+ err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, fwname,
+ sizeof(fwname), "ddc");
+ if (!err) {
bt_dev_err(hdev, "Unsupported Intel firmware naming");
return -EINVAL;
}
@@ -2398,6 +2471,588 @@
return 0;
}
+static int btusb_shutdown_intel_new(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+
+ /* Send HCI Reset to the controller to stop any BT activity which
+ * were triggered. This will help to save power and maintain the
+ * sync b/w Host and controller
+ */
+ skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ bt_dev_err(hdev, "HCI reset during shutdown failed");
+ return PTR_ERR(skb);
+ }
+ kfree_skb(skb);
+
+ return 0;
+}
+
+#ifdef CONFIG_BT_HCIBTUSB_MTK
+
+#define FIRMWARE_MT7663 "mediatek/mt7663pr2h.bin"
+#define FIRMWARE_MT7668 "mediatek/mt7668pr2h.bin"
+
+#define HCI_WMT_MAX_EVENT_SIZE 64
+
+enum {
+ BTMTK_WMT_PATCH_DWNLD = 0x1,
+ BTMTK_WMT_FUNC_CTRL = 0x6,
+ BTMTK_WMT_RST = 0x7,
+ BTMTK_WMT_SEMAPHORE = 0x17,
+};
+
+enum {
+ BTMTK_WMT_INVALID,
+ BTMTK_WMT_PATCH_UNDONE,
+ BTMTK_WMT_PATCH_DONE,
+ BTMTK_WMT_ON_UNDONE,
+ BTMTK_WMT_ON_DONE,
+ BTMTK_WMT_ON_PROGRESS,
+};
+
+struct btmtk_wmt_hdr {
+ u8 dir;
+ u8 op;
+ __le16 dlen;
+ u8 flag;
+} __packed;
+
+struct btmtk_hci_wmt_cmd {
+ struct btmtk_wmt_hdr hdr;
+ u8 data[256];
+} __packed;
+
+struct btmtk_hci_wmt_evt {
+ struct hci_event_hdr hhdr;
+ struct btmtk_wmt_hdr whdr;
+} __packed;
+
+struct btmtk_hci_wmt_evt_funcc {
+ struct btmtk_hci_wmt_evt hwhdr;
+ __be16 status;
+} __packed;
+
+struct btmtk_tci_sleep {
+ u8 mode;
+ __le16 duration;
+ __le16 host_duration;
+ u8 host_wakeup_pin;
+ u8 time_compensation;
+} __packed;
+
+struct btmtk_hci_wmt_params {
+ u8 op;
+ u8 flag;
+ u16 dlen;
+ const void *data;
+ u32 *status;
+};
+
+static void btusb_mtk_wmt_recv(struct urb *urb)
+{
+ struct hci_dev *hdev = urb->context;
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct hci_event_hdr *hdr;
+ struct sk_buff *skb;
+ int err;
+
+ if (urb->status == 0 && urb->actual_length > 0) {
+ hdev->stat.byte_rx += urb->actual_length;
+
+ /* WMT event shouldn't be fragmented and the size should be
+ * less than HCI_WMT_MAX_EVENT_SIZE.
+ */
+ skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
+ if (!skb) {
+ hdev->stat.err_rx++;
+ goto err_out;
+ }
+
+ hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
+ skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
+
+ hdr = (void *)skb->data;
+ /* Fix up the vendor event id with 0xff for vendor specific
+ * instead of 0xe4 so that event send via monitoring socket can
+ * be parsed properly.
+ */
+ hdr->evt = 0xff;
+
+ /* When someone waits for the WMT event, the skb is being cloned
+ * and being processed the events from there then.
+ */
+ if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
+ data->evt_skb = skb_clone(skb, GFP_KERNEL);
+ if (!data->evt_skb)
+ goto err_out;
+ }
+
+ err = hci_recv_frame(hdev, skb);
+ if (err < 0)
+ goto err_free_skb;
+
+ if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
+ &data->flags)) {
+ /* Barrier to sync with other CPUs */
+ smp_mb__after_atomic();
+ wake_up_bit(&data->flags,
+ BTUSB_TX_WAIT_VND_EVT);
+ }
+err_out:
+ return;
+err_free_skb:
+ kfree_skb(data->evt_skb);
+ data->evt_skb = NULL;
+ return;
+ } else if (urb->status == -ENOENT) {
+ /* Avoid suspend failed when usb_kill_urb */
+ return;
+ }
+
+ usb_mark_last_busy(data->udev);
+
+ /* The URB complete handler is still called with urb->actual_length = 0
+ * when the event is not available, so we should keep re-submitting
+ * URB until WMT event returns, Also, It's necessary to wait some time
+ * between the two consecutive control URBs to relax the target device
+ * to generate the event. Otherwise, the WMT event cannot return from
+ * the device successfully.
+ */
+ udelay(100);
+
+ usb_anchor_urb(urb, &data->ctrl_anchor);
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0) {
+ /* -EPERM: urb is being killed;
+ * -ENODEV: device got disconnected
+ */
+ if (err != -EPERM && err != -ENODEV)
+ bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
+ urb, -err);
+ usb_unanchor_urb(urb);
+ }
+}
+
+static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct usb_ctrlrequest *dr;
+ unsigned char *buf;
+ int err, size = 64;
+ unsigned int pipe;
+ struct urb *urb;
+
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!urb)
+ return -ENOMEM;
+
+ dr = kmalloc(sizeof(*dr), GFP_KERNEL);
+ if (!dr) {
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
+ dr->bRequest = 1;
+ dr->wIndex = cpu_to_le16(0);
+ dr->wValue = cpu_to_le16(48);
+ dr->wLength = cpu_to_le16(size);
+
+ buf = kmalloc(size, GFP_KERNEL);
+ if (!buf) {
+ kfree(dr);
+ return -ENOMEM;
+ }
+
+ pipe = usb_rcvctrlpipe(data->udev, 0);
+
+ usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
+ buf, size, btusb_mtk_wmt_recv, hdev);
+
+ urb->transfer_flags |= URB_FREE_BUFFER;
+
+ usb_anchor_urb(urb, &data->ctrl_anchor);
+ err = usb_submit_urb(urb, GFP_KERNEL);
+ if (err < 0) {
+ if (err != -EPERM && err != -ENODEV)
+ bt_dev_err(hdev, "urb %p submission failed (%d)",
+ urb, -err);
+ usb_unanchor_urb(urb);
+ }
+
+ usb_free_urb(urb);
+
+ return err;
+}
+
+static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
+ struct btmtk_hci_wmt_params *wmt_params)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
+ u32 hlen, status = BTMTK_WMT_INVALID;
+ struct btmtk_hci_wmt_evt *wmt_evt;
+ struct btmtk_hci_wmt_cmd wc;
+ struct btmtk_wmt_hdr *hdr;
+ int err;
+
+ /* Submit control IN URB on demand to process the WMT event */
+ err = btusb_mtk_submit_wmt_recv_urb(hdev);
+ if (err < 0)
+ return err;
+
+ /* Send the WMT command and wait until the WMT event returns */
+ hlen = sizeof(*hdr) + wmt_params->dlen;
+ if (hlen > 255)
+ return -EINVAL;
+
+ hdr = (struct btmtk_wmt_hdr *)&wc;
+ hdr->dir = 1;
+ hdr->op = wmt_params->op;
+ hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
+ hdr->flag = wmt_params->flag;
+ memcpy(wc.data, wmt_params->data, wmt_params->dlen);
+
+ set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
+
+ err = __hci_cmd_send(hdev, 0xfc6f, hlen, &wc);
+
+ if (err < 0) {
+ clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
+ return err;
+ }
+
+ /* The vendor specific WMT commands are all answered by a vendor
+ * specific event and will have the Command Status or Command
+ * Complete as with usual HCI command flow control.
+ *
+ * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
+ * state to be cleared. The driver specific event receive routine
+ * will clear that state and with that indicate completion of the
+ * WMT command.
+ */
+ err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
+ TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
+ if (err == -EINTR) {
+ bt_dev_err(hdev, "Execution of wmt command interrupted");
+ clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
+ return err;
+ }
+
+ if (err) {
+ bt_dev_err(hdev, "Execution of wmt command timed out");
+ clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
+ return -ETIMEDOUT;
+ }
+
+ /* Parse and handle the return WMT event */
+ wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
+ if (wmt_evt->whdr.op != hdr->op) {
+ bt_dev_err(hdev, "Wrong op received %d expected %d",
+ wmt_evt->whdr.op, hdr->op);
+ err = -EIO;
+ goto err_free_skb;
+ }
+
+ switch (wmt_evt->whdr.op) {
+ case BTMTK_WMT_SEMAPHORE:
+ if (wmt_evt->whdr.flag == 2)
+ status = BTMTK_WMT_PATCH_UNDONE;
+ else
+ status = BTMTK_WMT_PATCH_DONE;
+ break;
+ case BTMTK_WMT_FUNC_CTRL:
+ wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
+ if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
+ status = BTMTK_WMT_ON_DONE;
+ else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
+ status = BTMTK_WMT_ON_PROGRESS;
+ else
+ status = BTMTK_WMT_ON_UNDONE;
+ break;
+ }
+
+ if (wmt_params->status)
+ *wmt_params->status = status;
+
+err_free_skb:
+ kfree_skb(data->evt_skb);
+ data->evt_skb = NULL;
+
+ return err;
+}
+
+static int btusb_mtk_setup_firmware(struct hci_dev *hdev, const char *fwname)
+{
+ struct btmtk_hci_wmt_params wmt_params;
+ const struct firmware *fw;
+ const u8 *fw_ptr;
+ size_t fw_size;
+ int err, dlen;
+ u8 flag;
+
+ err = request_firmware(&fw, fwname, &hdev->dev);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
+ return err;
+ }
+
+ fw_ptr = fw->data;
+ fw_size = fw->size;
+
+ /* The size of patch header is 30 bytes, should be skip */
+ if (fw_size < 30) {
+ err = -EINVAL;
+ goto err_release_fw;
+ }
+
+ fw_size -= 30;
+ fw_ptr += 30;
+ flag = 1;
+
+ wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
+ wmt_params.status = NULL;
+
+ while (fw_size > 0) {
+ dlen = min_t(int, 250, fw_size);
+
+ /* Tell deivice the position in sequence */
+ if (fw_size - dlen <= 0)
+ flag = 3;
+ else if (fw_size < fw->size - 30)
+ flag = 2;
+
+ wmt_params.flag = flag;
+ wmt_params.dlen = dlen;
+ wmt_params.data = fw_ptr;
+
+ err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
+ err);
+ goto err_release_fw;
+ }
+
+ fw_size -= dlen;
+ fw_ptr += dlen;
+ }
+
+ wmt_params.op = BTMTK_WMT_RST;
+ wmt_params.flag = 4;
+ wmt_params.dlen = 0;
+ wmt_params.data = NULL;
+ wmt_params.status = NULL;
+
+ /* Activate funciton the firmware providing to */
+ err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
+ return err;
+ }
+
+ /* Wait a few moments for firmware activation done */
+ usleep_range(10000, 12000);
+
+err_release_fw:
+ release_firmware(fw);
+
+ return err;
+}
+
+static int btusb_mtk_func_query(struct hci_dev *hdev)
+{
+ struct btmtk_hci_wmt_params wmt_params;
+ int status, err;
+ u8 param = 0;
+
+ /* Query whether the function is enabled */
+ wmt_params.op = BTMTK_WMT_FUNC_CTRL;
+ wmt_params.flag = 4;
+ wmt_params.dlen = sizeof(param);
+ wmt_params.data = ¶m;
+ wmt_params.status = &status;
+
+ err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to query function status (%d)", err);
+ return err;
+ }
+
+ return status;
+}
+
+static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
+{
+ int pipe, err, size = sizeof(u32);
+ void *buf;
+
+ buf = kzalloc(size, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ pipe = usb_rcvctrlpipe(data->udev, 0);
+ err = usb_control_msg(data->udev, pipe, 0x63,
+ USB_TYPE_VENDOR | USB_DIR_IN,
+ reg >> 16, reg & 0xffff,
+ buf, size, USB_CTRL_SET_TIMEOUT);
+ if (err < 0)
+ goto err_free_buf;
+
+ *val = get_unaligned_le32(buf);
+
+err_free_buf:
+ kfree(buf);
+
+ return err;
+}
+
+static int btusb_mtk_id_get(struct btusb_data *data, u32 *id)
+{
+ return btusb_mtk_reg_read(data, 0x80000008, id);
+}
+
+static int btusb_mtk_setup(struct hci_dev *hdev)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct btmtk_hci_wmt_params wmt_params;
+ ktime_t calltime, delta, rettime;
+ struct btmtk_tci_sleep tci_sleep;
+ unsigned long long duration;
+ struct sk_buff *skb;
+ const char *fwname;
+ int err, status;
+ u32 dev_id;
+ u8 param;
+
+ calltime = ktime_get();
+
+ err = btusb_mtk_id_get(data, &dev_id);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to get device id (%d)", err);
+ return err;
+ }
+
+ switch (dev_id) {
+ case 0x7663:
+ fwname = FIRMWARE_MT7663;
+ break;
+ case 0x7668:
+ fwname = FIRMWARE_MT7668;
+ break;
+ default:
+ bt_dev_err(hdev, "Unsupported support hardware variant (%08x)",
+ dev_id);
+ return -ENODEV;
+ }
+
+ /* Query whether the firmware is already download */
+ wmt_params.op = BTMTK_WMT_SEMAPHORE;
+ wmt_params.flag = 1;
+ wmt_params.dlen = 0;
+ wmt_params.data = NULL;
+ wmt_params.status = &status;
+
+ err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
+ return err;
+ }
+
+ if (status == BTMTK_WMT_PATCH_DONE) {
+ bt_dev_info(hdev, "firmware already downloaded");
+ goto ignore_setup_fw;
+ }
+
+ /* Setup a firmware which the device definitely requires */
+ err = btusb_mtk_setup_firmware(hdev, fwname);
+ if (err < 0)
+ return err;
+
+ignore_setup_fw:
+ err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
+ status < 0 || status != BTMTK_WMT_ON_PROGRESS,
+ 2000, 5000000);
+ /* -ETIMEDOUT happens */
+ if (err < 0)
+ return err;
+
+ /* The other errors happen in btusb_mtk_func_query */
+ if (status < 0)
+ return status;
+
+ if (status == BTMTK_WMT_ON_DONE) {
+ bt_dev_info(hdev, "function already on");
+ goto ignore_func_on;
+ }
+
+ /* Enable Bluetooth protocol */
+ param = 1;
+ wmt_params.op = BTMTK_WMT_FUNC_CTRL;
+ wmt_params.flag = 0;
+ wmt_params.dlen = sizeof(param);
+ wmt_params.data = ¶m;
+ wmt_params.status = NULL;
+
+ err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
+ return err;
+ }
+
+ignore_func_on:
+ /* Apply the low power environment setup */
+ tci_sleep.mode = 0x5;
+ tci_sleep.duration = cpu_to_le16(0x640);
+ tci_sleep.host_duration = cpu_to_le16(0x640);
+ tci_sleep.host_wakeup_pin = 0;
+ tci_sleep.time_compensation = 0;
+
+ skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
+ HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
+ return err;
+ }
+ kfree_skb(skb);
+
+ rettime = ktime_get();
+ delta = ktime_sub(rettime, calltime);
+ duration = (unsigned long long)ktime_to_ns(delta) >> 10;
+
+ bt_dev_info(hdev, "Device setup in %llu usecs", duration);
+
+ return 0;
+}
+
+static int btusb_mtk_shutdown(struct hci_dev *hdev)
+{
+ struct btmtk_hci_wmt_params wmt_params;
+ u8 param = 0;
+ int err;
+
+ /* Disable the device */
+ wmt_params.op = BTMTK_WMT_FUNC_CTRL;
+ wmt_params.flag = 0;
+ wmt_params.dlen = sizeof(param);
+ wmt_params.data = ¶m;
+ wmt_params.status = NULL;
+
+ err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
+ return err;
+ }
+
+ return 0;
+}
+
+MODULE_FIRMWARE(FIRMWARE_MT7663);
+MODULE_FIRMWARE(FIRMWARE_MT7668);
+#endif
+
#ifdef CONFIG_PM
/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
static int marvell_config_oob_wake(struct hci_dev *hdev)
@@ -2863,6 +3518,8 @@
static const struct of_device_id btusb_match_table[] = {
{ .compatible = "usb1286,204e" },
+ { .compatible = "usbcf3,e300" }, /* QCA6174A */
+ { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
{ }
};
MODULE_DEVICE_TABLE(of, btusb_match_table);
@@ -2886,6 +3543,7 @@
return 0;
}
+ irq_set_status_flags(irq, IRQ_NOAUTOEN);
ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
0, "OOB Wake-on-BT", data);
if (ret) {
@@ -2900,7 +3558,6 @@
}
data->oob_wake_irq = irq;
- disable_irq(irq);
bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
return 0;
}
@@ -2916,6 +3573,7 @@
const struct usb_device_id *id)
{
struct usb_endpoint_descriptor *ep_desc;
+ struct gpio_desc *reset_gpio;
struct btusb_data *data;
struct hci_dev *hdev;
unsigned ifnum_base;
@@ -3002,6 +3660,7 @@
init_usb_anchor(&data->bulk_anchor);
init_usb_anchor(&data->isoc_anchor);
init_usb_anchor(&data->diag_anchor);
+ init_usb_anchor(&data->ctrl_anchor);
spin_lock_init(&data->rxlock);
if (id->driver_info & BTUSB_INTEL_NEW) {
@@ -3029,6 +3688,15 @@
SET_HCIDEV_DEV(hdev, &intf->dev);
+ reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(reset_gpio)) {
+ err = PTR_ERR(reset_gpio);
+ goto out_free_dev;
+ } else if (reset_gpio) {
+ data->reset_gpio = reset_gpio;
+ }
+
hdev->open = btusb_open;
hdev->close = btusb_close;
hdev->flush = btusb_flush;
@@ -3083,6 +3751,7 @@
hdev->shutdown = btusb_shutdown_intel;
hdev->set_diag = btintel_set_diag_mfg;
hdev->set_bdaddr = btintel_set_bdaddr;
+ hdev->cmd_timeout = btusb_intel_cmd_timeout;
set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
@@ -3092,16 +3761,28 @@
hdev->manufacturer = 2;
hdev->send = btusb_send_frame_intel;
hdev->setup = btusb_setup_intel_new;
+ hdev->shutdown = btusb_shutdown_intel_new;
hdev->hw_error = btintel_hw_error;
hdev->set_diag = btintel_set_diag;
hdev->set_bdaddr = btintel_set_bdaddr;
+ hdev->cmd_timeout = btusb_intel_cmd_timeout;
set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
+ set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
}
if (id->driver_info & BTUSB_MARVELL)
hdev->set_bdaddr = btusb_set_bdaddr_marvell;
+#ifdef CONFIG_BT_HCIBTUSB_MTK
+ if (id->driver_info & BTUSB_MEDIATEK) {
+ hdev->setup = btusb_mtk_setup;
+ hdev->shutdown = btusb_mtk_shutdown;
+ hdev->manufacturer = 70;
+ set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
+ }
+#endif
+
if (id->driver_info & BTUSB_SWAVE) {
set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
@@ -3129,12 +3810,14 @@
#ifdef CONFIG_BT_HCIBTUSB_RTL
if (id->driver_info & BTUSB_REALTEK) {
hdev->setup = btrtl_setup_realtek;
+ hdev->shutdown = btrtl_shutdown_realtek;
+ hdev->cmd_timeout = btusb_rtl_cmd_timeout;
- /* Realtek devices lose their updated firmware over suspend,
- * but the USB hub doesn't notice any status change.
- * Explicitly request a device reset on resume.
+ /* Realtek devices lose their updated firmware over global
+ * suspend that means host doesn't send SET_FEATURE
+ * (DEVICE_REMOTE_WAKEUP)
*/
- interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
+ set_bit(BTUSB_WAKEUP_DISABLE, &data->flags);
}
#endif
@@ -3226,6 +3909,8 @@
return 0;
out_free_dev:
+ if (data->reset_gpio)
+ gpiod_put(data->reset_gpio);
hci_free_dev(hdev);
return err;
}
@@ -3269,6 +3954,9 @@
if (data->oob_wake_irq)
device_init_wakeup(&data->udev->dev, false);
+ if (data->reset_gpio)
+ gpiod_put(data->reset_gpio);
+
hci_free_dev(hdev);
}
@@ -3303,6 +3991,19 @@
enable_irq(data->oob_wake_irq);
}
+ /* For global suspend, Realtek devices lose the loaded fw
+ * in them. But for autosuspend, firmware should remain.
+ * Actually, it depends on whether the usb host sends
+ * set feature (enable wakeup) or not.
+ */
+ if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags)) {
+ if (PMSG_IS_AUTO(message) &&
+ device_can_wakeup(&data->udev->dev))
+ data->udev->do_remote_wakeup = 1;
+ else if (!PMSG_IS_AUTO(message))
+ data->udev->reset_resume = 1;
+ }
+
return 0;
}
diff --git a/drivers/bluetooth/btwilink.c b/drivers/bluetooth/btwilink.c
index 5ef8000..e55f06e 100644
--- a/drivers/bluetooth/btwilink.c
+++ b/drivers/bluetooth/btwilink.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Texas Instrument's Bluetooth Driver For Shared Transport.
*
@@ -7,20 +8,6 @@
* Copyright (C) 2009-2010 Texas Instruments
* Author: Raja Mani <raja_mani@ti.com>
* Pavan Savoy <pavan_savoy@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/platform_device.h>
diff --git a/drivers/bluetooth/h4_recv.h b/drivers/bluetooth/h4_recv.h
index b432651..4f2c897 100644
--- a/drivers/bluetooth/h4_recv.h
+++ b/drivers/bluetooth/h4_recv.h
@@ -1,24 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
*
* Generic Bluetooth HCI UART driver
*
* Copyright (C) 2015-2018 Intel Corporation
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <asm/unaligned.h>
@@ -60,12 +45,13 @@
const struct h4_recv_pkt *pkts,
int pkts_count)
{
+ /* Check for error from previous call */
+ if (IS_ERR(skb))
+ skb = NULL;
+
while (count) {
int i, len;
- if (!count)
- break;
-
if (!skb) {
for (i = 0; i < pkts_count; i++) {
if (buffer[0] != (&pkts[i])->type)
diff --git a/drivers/bluetooth/hci_ag6xx.c b/drivers/bluetooth/hci_ag6xx.c
index 6923d17..8bafa65 100644
--- a/drivers/bluetooth/hci_ag6xx.c
+++ b/drivers/bluetooth/hci_ag6xx.c
@@ -1,24 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* Bluetooth HCI UART driver for Intel/AG6xx devices
*
* Copyright (C) 2016 Intel Corporation
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/kernel.h>
diff --git a/drivers/bluetooth/hci_ath.c b/drivers/bluetooth/hci_ath.c
index d568fbd..dbfe346 100644
--- a/drivers/bluetooth/hci_ath.c
+++ b/drivers/bluetooth/hci_ath.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Atheros Communication Bluetooth HCIATH3K UART protocol
*
@@ -9,21 +10,6 @@
* Acknowledgements:
* This file is based on hci_h4.c, which was written
* by Maxim Krasnyansky and Marcel Holtmann.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/module.h>
@@ -112,6 +98,9 @@
BT_DBG("hu %p", hu);
+ if (!hci_uart_has_flow_control(hu))
+ return -EOPNOTSUPP;
+
ath = kzalloc(sizeof(*ath), GFP_KERNEL);
if (!ath)
return -ENOMEM;
diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c
index ddbd8c6..7646636 100644
--- a/drivers/bluetooth/hci_bcm.c
+++ b/drivers/bluetooth/hci_bcm.c
@@ -1,24 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* Bluetooth HCI UART driver for Broadcom devices
*
* Copyright (C) 2015 Intel Corporation
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/kernel.h>
@@ -31,6 +16,7 @@
#include <linux/property.h>
#include <linux/platform_data/x86/apple.h>
#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
#include <linux/clk.h>
#include <linux/gpio/consumer.h>
#include <linux/tty.h>
@@ -51,8 +37,16 @@
#define BCM_LM_DIAG_PKT 0x07
#define BCM_LM_DIAG_SIZE 63
+#define BCM_TYPE49_PKT 0x31
+#define BCM_TYPE49_SIZE 0
+
+#define BCM_TYPE52_PKT 0x34
+#define BCM_TYPE52_SIZE 0
+
#define BCM_AUTOSUSPEND_DELAY 5000 /* default autosleep delay */
+#define BCM_NUM_SUPPLIES 2
+
/**
* struct bcm_device - device driver resources
* @serdev_hu: HCI UART controller struct
@@ -71,8 +65,10 @@
* @btlp: Apple ACPI method to toggle BT_WAKE pin ("Bluetooth Low Power")
* @btpu: Apple ACPI method to drive BT_REG_ON pin high ("Bluetooth Power Up")
* @btpd: Apple ACPI method to drive BT_REG_ON pin low ("Bluetooth Power Down")
- * @clk: clock used by Bluetooth device
- * @clk_enabled: whether @clk is prepared and enabled
+ * @txco_clk: external reference frequency clock used by Bluetooth device
+ * @lpo_clk: external LPO clock used by Bluetooth device
+ * @supplies: VBAT and VDDIO supplies used by Bluetooth device
+ * @res_enabled: whether clocks and supplies are prepared and enabled
* @init_speed: default baudrate of Bluetooth device;
* the host UART is initially set to this baudrate so that
* it can configure the Bluetooth device for @oper_speed
@@ -102,8 +98,10 @@
int gpio_int_idx;
#endif
- struct clk *clk;
- bool clk_enabled;
+ struct clk *txco_clk;
+ struct clk *lpo_clk;
+ struct regulator_bulk_data supplies[BCM_NUM_SUPPLIES];
+ bool res_enabled;
u32 init_speed;
u32 oper_speed;
@@ -214,32 +212,71 @@
{
int err;
- if (powered && !IS_ERR(dev->clk) && !dev->clk_enabled) {
- err = clk_prepare_enable(dev->clk);
+ if (powered && !dev->res_enabled) {
+ /* Intel Macs use bcm_apple_get_resources() and don't
+ * have regulator supplies configured.
+ */
+ if (dev->supplies[0].supply) {
+ err = regulator_bulk_enable(BCM_NUM_SUPPLIES,
+ dev->supplies);
+ if (err)
+ return err;
+ }
+
+ /* LPO clock needs to be 32.768 kHz */
+ err = clk_set_rate(dev->lpo_clk, 32768);
+ if (err) {
+ dev_err(dev->dev, "Could not set LPO clock rate\n");
+ goto err_regulator_disable;
+ }
+
+ err = clk_prepare_enable(dev->lpo_clk);
if (err)
- return err;
+ goto err_regulator_disable;
+
+ err = clk_prepare_enable(dev->txco_clk);
+ if (err)
+ goto err_lpo_clk_disable;
}
err = dev->set_shutdown(dev, powered);
if (err)
- goto err_clk_disable;
+ goto err_txco_clk_disable;
err = dev->set_device_wakeup(dev, powered);
if (err)
goto err_revert_shutdown;
- if (!powered && !IS_ERR(dev->clk) && dev->clk_enabled)
- clk_disable_unprepare(dev->clk);
+ if (!powered && dev->res_enabled) {
+ clk_disable_unprepare(dev->txco_clk);
+ clk_disable_unprepare(dev->lpo_clk);
- dev->clk_enabled = powered;
+ /* Intel Macs use bcm_apple_get_resources() and don't
+ * have regulator supplies configured.
+ */
+ if (dev->supplies[0].supply)
+ regulator_bulk_disable(BCM_NUM_SUPPLIES,
+ dev->supplies);
+ }
+
+ /* wait for device to power on and come out of reset */
+ usleep_range(100000, 120000);
+
+ dev->res_enabled = powered;
return 0;
err_revert_shutdown:
dev->set_shutdown(dev, !powered);
-err_clk_disable:
- if (powered && !IS_ERR(dev->clk) && !dev->clk_enabled)
- clk_disable_unprepare(dev->clk);
+err_txco_clk_disable:
+ if (powered && !dev->res_enabled)
+ clk_disable_unprepare(dev->txco_clk);
+err_lpo_clk_disable:
+ if (powered && !dev->res_enabled)
+ clk_disable_unprepare(dev->lpo_clk);
+err_regulator_disable:
+ if (powered && !dev->res_enabled)
+ regulator_bulk_disable(BCM_NUM_SUPPLIES, dev->supplies);
return err;
}
@@ -369,6 +406,9 @@
bt_dev_dbg(hu->hdev, "hu %p", hu);
+ if (!hci_uart_has_flow_control(hu))
+ return -EOPNOTSUPP;
+
bcm = kzalloc(sizeof(*bcm), GFP_KERNEL);
if (!bcm)
return -ENOMEM;
@@ -561,12 +601,28 @@
.lsize = 0, \
.maxlen = BCM_NULL_SIZE
+#define BCM_RECV_TYPE49 \
+ .type = BCM_TYPE49_PKT, \
+ .hlen = BCM_TYPE49_SIZE, \
+ .loff = 0, \
+ .lsize = 0, \
+ .maxlen = BCM_TYPE49_SIZE
+
+#define BCM_RECV_TYPE52 \
+ .type = BCM_TYPE52_PKT, \
+ .hlen = BCM_TYPE52_SIZE, \
+ .loff = 0, \
+ .lsize = 0, \
+ .maxlen = BCM_TYPE52_SIZE
+
static const struct h4_recv_pkt bcm_recv_pkts[] = {
{ H4_RECV_ACL, .recv = hci_recv_frame },
{ H4_RECV_SCO, .recv = hci_recv_frame },
{ H4_RECV_EVENT, .recv = hci_recv_frame },
{ BCM_RECV_LM_DIAG, .recv = hci_recv_diag },
{ BCM_RECV_NULL, .recv = hci_recv_diag },
+ { BCM_RECV_TYPE49, .recv = hci_recv_diag },
+ { BCM_RECV_TYPE52, .recv = hci_recv_diag },
};
static int bcm_recv(struct hci_uart *hu, const void *data, int count)
@@ -768,6 +824,21 @@
}
#endif
+/* Some firmware reports an IRQ which does not work (wrong pin in fw table?) */
+static const struct dmi_system_id bcm_broken_irq_dmi_table[] = {
+ {
+ .ident = "Meegopad T08",
+ .matches = {
+ DMI_EXACT_MATCH(DMI_BOARD_VENDOR,
+ "To be filled by OEM."),
+ DMI_EXACT_MATCH(DMI_BOARD_NAME, "T3 MRD"),
+ DMI_EXACT_MATCH(DMI_BOARD_VERSION, "V1.1"),
+ },
+ },
+ { }
+};
+
+#ifdef CONFIG_ACPI
static const struct acpi_gpio_params first_gpio = { 0, 0, false };
static const struct acpi_gpio_params second_gpio = { 1, 0, false };
static const struct acpi_gpio_params third_gpio = { 2, 0, false };
@@ -786,21 +857,6 @@
{ },
};
-/* Some firmware reports an IRQ which does not work (wrong pin in fw table?) */
-static const struct dmi_system_id bcm_broken_irq_dmi_table[] = {
- {
- .ident = "Meegopad T08",
- .matches = {
- DMI_EXACT_MATCH(DMI_BOARD_VENDOR,
- "To be filled by OEM."),
- DMI_EXACT_MATCH(DMI_BOARD_NAME, "T3 MRD"),
- DMI_EXACT_MATCH(DMI_BOARD_VERSION, "V1.1"),
- },
- },
- { }
-};
-
-#ifdef CONFIG_ACPI
static int bcm_resource(struct acpi_resource *ares, void *data)
{
struct bcm_device *dev = data;
@@ -896,16 +952,57 @@
return 0;
}
+/* Try a bunch of names for TXCO */
+static struct clk *bcm_get_txco(struct device *dev)
+{
+ struct clk *clk;
+
+ /* New explicit name */
+ clk = devm_clk_get(dev, "txco");
+ if (!IS_ERR(clk) || PTR_ERR(clk) == -EPROBE_DEFER)
+ return clk;
+
+ /* Deprecated name */
+ clk = devm_clk_get(dev, "extclk");
+ if (!IS_ERR(clk) || PTR_ERR(clk) == -EPROBE_DEFER)
+ return clk;
+
+ /* Original code used no name at all */
+ return devm_clk_get(dev, NULL);
+}
+
static int bcm_get_resources(struct bcm_device *dev)
{
const struct dmi_system_id *dmi_id;
+ int err;
dev->name = dev_name(dev->dev);
if (x86_apple_machine && !bcm_apple_get_resources(dev))
return 0;
- dev->clk = devm_clk_get(dev->dev, NULL);
+ dev->txco_clk = bcm_get_txco(dev->dev);
+
+ /* Handle deferred probing */
+ if (dev->txco_clk == ERR_PTR(-EPROBE_DEFER))
+ return PTR_ERR(dev->txco_clk);
+
+ /* Ignore all other errors as before */
+ if (IS_ERR(dev->txco_clk))
+ dev->txco_clk = NULL;
+
+ dev->lpo_clk = devm_clk_get(dev->dev, "lpo");
+ if (dev->lpo_clk == ERR_PTR(-EPROBE_DEFER))
+ return PTR_ERR(dev->lpo_clk);
+
+ if (IS_ERR(dev->lpo_clk))
+ dev->lpo_clk = NULL;
+
+ /* Check if we accidentally fetched the lpo clock twice */
+ if (dev->lpo_clk && clk_is_match(dev->lpo_clk, dev->txco_clk)) {
+ devm_clk_put(dev->dev, dev->txco_clk);
+ dev->txco_clk = NULL;
+ }
dev->device_wakeup = devm_gpiod_get_optional(dev->dev, "device-wakeup",
GPIOD_OUT_LOW);
@@ -920,6 +1017,13 @@
dev->set_device_wakeup = bcm_gpio_set_device_wakeup;
dev->set_shutdown = bcm_gpio_set_shutdown;
+ dev->supplies[0].supply = "vbat";
+ dev->supplies[1].supply = "vddio";
+ err = devm_regulator_bulk_get(dev->dev, BCM_NUM_SUPPLIES,
+ dev->supplies);
+ if (err)
+ return err;
+
/* IRQ can be declared in ACPI table as Interrupt or GpioInt */
if (dev->irq <= 0) {
struct gpio_desc *gpio;
@@ -1314,6 +1418,9 @@
#ifdef CONFIG_OF
static const struct of_device_id bcm_bluetooth_of_match[] = {
+ { .compatible = "brcm,bcm20702a1" },
+ { .compatible = "brcm,bcm4345c5" },
+ { .compatible = "brcm,bcm4330-bt" },
{ .compatible = "brcm,bcm43438-bt" },
{ },
};
diff --git a/drivers/bluetooth/hci_bcsp.c b/drivers/bluetooth/hci_bcsp.c
index 1a7f0c8..cf4a560 100644
--- a/drivers/bluetooth/hci_bcsp.c
+++ b/drivers/bluetooth/hci_bcsp.c
@@ -1,25 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* Bluetooth HCI UART driver
*
* Copyright (C) 2002-2003 Fabrizio Gennari <fabrizio.gennari@philips.com>
* Copyright (C) 2004-2005 Marcel Holtmann <marcel@holtmann.org>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/module.h>
@@ -606,6 +591,7 @@
if (*ptr == 0xc0) {
BT_ERR("Short BCSP packet");
kfree_skb(bcsp->rx_skb);
+ bcsp->rx_skb = NULL;
bcsp->rx_state = BCSP_W4_PKT_START;
bcsp->rx_count = 0;
} else
@@ -621,6 +607,7 @@
bcsp->rx_skb->data[2])) != bcsp->rx_skb->data[3]) {
BT_ERR("Error in BCSP hdr checksum");
kfree_skb(bcsp->rx_skb);
+ bcsp->rx_skb = NULL;
bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
bcsp->rx_count = 0;
continue;
@@ -645,6 +632,7 @@
bscp_get_crc(bcsp));
kfree_skb(bcsp->rx_skb);
+ bcsp->rx_skb = NULL;
bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
bcsp->rx_count = 0;
continue;
@@ -759,6 +747,11 @@
skb_queue_purge(&bcsp->rel);
skb_queue_purge(&bcsp->unrel);
+ if (bcsp->rx_skb) {
+ kfree_skb(bcsp->rx_skb);
+ bcsp->rx_skb = NULL;
+ }
+
kfree(bcsp);
return 0;
}
diff --git a/drivers/bluetooth/hci_h4.c b/drivers/bluetooth/hci_h4.c
index fb97a3b..19ba520 100644
--- a/drivers/bluetooth/hci_h4.c
+++ b/drivers/bluetooth/hci_h4.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* Bluetooth HCI UART driver
@@ -5,22 +6,6 @@
* Copyright (C) 2000-2001 Qualcomm Incorporated
* Copyright (C) 2002-2003 Maxim Krasnyansky <maxk@qualcomm.com>
* Copyright (C) 2004-2005 Marcel Holtmann <marcel@holtmann.org>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/module.h>
@@ -174,6 +159,10 @@
struct hci_uart *hu = hci_get_drvdata(hdev);
u8 alignment = hu->alignment ? hu->alignment : 1;
+ /* Check for error from previous call */
+ if (IS_ERR(skb))
+ skb = NULL;
+
while (count) {
int i, len;
diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c
index 8eede11..dacf297 100644
--- a/drivers/bluetooth/hci_h5.c
+++ b/drivers/bluetooth/hci_h5.c
@@ -1,24 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* Bluetooth HCI Three-wire UART driver
*
* Copyright (C) 2012 Intel Corporation
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/acpi.h>
@@ -115,6 +100,8 @@
int (*setup)(struct h5 *h5);
void (*open)(struct h5 *h5);
void (*close)(struct h5 *h5);
+ int (*suspend)(struct h5 *h5);
+ int (*resume)(struct h5 *h5);
const struct acpi_gpio_mapping *acpi_gpio_map;
};
@@ -534,7 +521,7 @@
skb_put_data(h5->rx_skb, byte, 1);
h5->rx_pending--;
- BT_DBG("unsliped 0x%02hhx, rx_pending %zu", *byte, h5->rx_pending);
+ BT_DBG("unslipped 0x%02hhx, rx_pending %zu", *byte, h5->rx_pending);
}
static void h5_reset_rx(struct h5 *h5)
@@ -841,6 +828,28 @@
hci_uart_unregister_device(&h5->serdev_hu);
}
+static int __maybe_unused h5_serdev_suspend(struct device *dev)
+{
+ struct h5 *h5 = dev_get_drvdata(dev);
+ int ret = 0;
+
+ if (h5->vnd && h5->vnd->suspend)
+ ret = h5->vnd->suspend(h5);
+
+ return ret;
+}
+
+static int __maybe_unused h5_serdev_resume(struct device *dev)
+{
+ struct h5 *h5 = dev_get_drvdata(dev);
+ int ret = 0;
+
+ if (h5->vnd && h5->vnd->resume)
+ ret = h5->vnd->resume(h5);
+
+ return ret;
+}
+
#ifdef CONFIG_BT_HCIUART_RTL
static int h5_btrtl_setup(struct h5 *h5)
{
@@ -907,6 +916,56 @@
gpiod_set_value_cansleep(h5->enable_gpio, 0);
}
+/* Suspend/resume support. On many devices the RTL BT device loses power during
+ * suspend/resume, causing it to lose its firmware and all state. So we simply
+ * turn it off on suspend and reprobe on resume. This mirrors how RTL devices
+ * are handled in the USB driver, where the USB_QUIRK_RESET_RESUME is used which
+ * also causes a reprobe on resume.
+ */
+static int h5_btrtl_suspend(struct h5 *h5)
+{
+ serdev_device_set_flow_control(h5->hu->serdev, false);
+ gpiod_set_value_cansleep(h5->device_wake_gpio, 0);
+ gpiod_set_value_cansleep(h5->enable_gpio, 0);
+ return 0;
+}
+
+struct h5_btrtl_reprobe {
+ struct device *dev;
+ struct work_struct work;
+};
+
+static void h5_btrtl_reprobe_worker(struct work_struct *work)
+{
+ struct h5_btrtl_reprobe *reprobe =
+ container_of(work, struct h5_btrtl_reprobe, work);
+ int ret;
+
+ ret = device_reprobe(reprobe->dev);
+ if (ret && ret != -EPROBE_DEFER)
+ dev_err(reprobe->dev, "Reprobe error %d\n", ret);
+
+ put_device(reprobe->dev);
+ kfree(reprobe);
+ module_put(THIS_MODULE);
+}
+
+static int h5_btrtl_resume(struct h5 *h5)
+{
+ struct h5_btrtl_reprobe *reprobe;
+
+ reprobe = kzalloc(sizeof(*reprobe), GFP_KERNEL);
+ if (!reprobe)
+ return -ENOMEM;
+
+ __module_get(THIS_MODULE);
+
+ INIT_WORK(&reprobe->work, h5_btrtl_reprobe_worker);
+ reprobe->dev = get_device(&h5->hu->serdev->dev);
+ queue_work(system_long_wq, &reprobe->work);
+ return 0;
+}
+
static const struct acpi_gpio_params btrtl_device_wake_gpios = { 0, 0, false };
static const struct acpi_gpio_params btrtl_enable_gpios = { 1, 0, false };
static const struct acpi_gpio_params btrtl_host_wake_gpios = { 2, 0, false };
@@ -921,6 +980,8 @@
.setup = h5_btrtl_setup,
.open = h5_btrtl_open,
.close = h5_btrtl_close,
+ .suspend = h5_btrtl_suspend,
+ .resume = h5_btrtl_resume,
.acpi_gpio_map = acpi_btrtl_gpios,
};
#endif
@@ -935,12 +996,17 @@
MODULE_DEVICE_TABLE(acpi, h5_acpi_match);
#endif
+static const struct dev_pm_ops h5_serdev_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(h5_serdev_suspend, h5_serdev_resume)
+};
+
static struct serdev_device_driver h5_serdev_driver = {
.probe = h5_serdev_probe,
.remove = h5_serdev_remove,
.driver = {
.name = "hci_uart_h5",
.acpi_match_table = ACPI_PTR(h5_acpi_match),
+ .pm = &h5_serdev_pm_ops,
},
};
diff --git a/drivers/bluetooth/hci_intel.c b/drivers/bluetooth/hci_intel.c
index 46ace32..31f2515 100644
--- a/drivers/bluetooth/hci_intel.c
+++ b/drivers/bluetooth/hci_intel.c
@@ -1,24 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* Bluetooth HCI UART driver for Intel devices
*
* Copyright (C) 2015 Intel Corporation
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/kernel.h>
@@ -406,6 +391,9 @@
BT_DBG("hu %p", hu);
+ if (!hci_uart_has_flow_control(hu))
+ return -EOPNOTSUPP;
+
intel = kzalloc(sizeof(*intel), GFP_KERNEL);
if (!intel)
return -ENOMEM;
@@ -596,8 +584,8 @@
* is in bootloader mode or if it already has operational firmware
* loaded.
*/
- err = btintel_read_version(hdev, &ver);
- if (err)
+ err = btintel_read_version(hdev, &ver);
+ if (err)
return err;
/* The hardware platform number has a fixed value of 0x37 and
@@ -909,10 +897,8 @@
set_bit(STATE_FIRMWARE_FAILED, &intel->flags);
if (test_and_clear_bit(STATE_DOWNLOADING, &intel->flags) &&
- test_bit(STATE_FIRMWARE_LOADED, &intel->flags)) {
- smp_mb__after_atomic();
+ test_bit(STATE_FIRMWARE_LOADED, &intel->flags))
wake_up_bit(&intel->flags, STATE_DOWNLOADING);
- }
/* When switching to the operational firmware the device
* sends a vendor specific event indicating that the bootup
@@ -920,10 +906,8 @@
*/
} else if (skb->len == 9 && hdr->evt == 0xff && hdr->plen == 0x07 &&
skb->data[2] == 0x02) {
- if (test_and_clear_bit(STATE_BOOTING, &intel->flags)) {
- smp_mb__after_atomic();
+ if (test_and_clear_bit(STATE_BOOTING, &intel->flags))
wake_up_bit(&intel->flags, STATE_BOOTING);
- }
}
recv:
return hci_recv_frame(hdev, skb);
@@ -960,17 +944,13 @@
break;
case LPM_OP_SUSPEND_ACK:
set_bit(STATE_SUSPENDED, &intel->flags);
- if (test_and_clear_bit(STATE_LPM_TRANSACTION, &intel->flags)) {
- smp_mb__after_atomic();
+ if (test_and_clear_bit(STATE_LPM_TRANSACTION, &intel->flags))
wake_up_bit(&intel->flags, STATE_LPM_TRANSACTION);
- }
break;
case LPM_OP_RESUME_ACK:
clear_bit(STATE_SUSPENDED, &intel->flags);
- if (test_and_clear_bit(STATE_LPM_TRANSACTION, &intel->flags)) {
- smp_mb__after_atomic();
+ if (test_and_clear_bit(STATE_LPM_TRANSACTION, &intel->flags))
wake_up_bit(&intel->flags, STATE_LPM_TRANSACTION);
- }
break;
default:
bt_dev_err(hdev, "Unknown LPM opcode (%02x)", lpm->opcode);
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index ea6238e..85a30fb 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* Bluetooth HCI UART driver
@@ -5,22 +6,6 @@
* Copyright (C) 2000-2001 Qualcomm Incorporated
* Copyright (C) 2002-2003 Maxim Krasnyansky <maxk@qualcomm.com>
* Copyright (C) 2004-2005 Marcel Holtmann <marcel@holtmann.org>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/module.h>
@@ -193,6 +178,7 @@
goto restart;
clear_bit(HCI_UART_SENDING, &hu->tx_state);
+ wake_up_bit(&hu->tx_state, HCI_UART_SENDING);
}
void hci_uart_init_work(struct work_struct *work)
@@ -207,11 +193,11 @@
err = hci_register_dev(hu->hdev);
if (err < 0) {
BT_ERR("Can't register HCI device");
+ clear_bit(HCI_UART_PROTO_READY, &hu->flags);
+ hu->proto->close(hu);
hdev = hu->hdev;
hu->hdev = NULL;
hci_free_dev(hdev);
- clear_bit(HCI_UART_PROTO_READY, &hu->flags);
- hu->proto->close(hu);
return;
}
@@ -228,6 +214,13 @@
return 0;
}
+int hci_uart_wait_until_sent(struct hci_uart *hu)
+{
+ return wait_on_bit_timeout(&hu->tx_state, HCI_UART_SENDING,
+ TASK_INTERRUPTIBLE,
+ msecs_to_jiffies(2000));
+}
+
/* ------- Interface to HCI layer ------ */
/* Reset device */
static int hci_uart_flush(struct hci_dev *hdev)
@@ -299,6 +292,19 @@
return 0;
}
+/* Check the underlying device or tty has flow control support */
+bool hci_uart_has_flow_control(struct hci_uart *hu)
+{
+ /* serdev nodes check if the needed operations are present */
+ if (hu->serdev)
+ return true;
+
+ if (hu->tty->driver->ops->tiocmget && hu->tty->driver->ops->tiocmset)
+ return true;
+
+ return false;
+}
+
/* Flow control or un-flow control the device */
void hci_uart_set_flow_control(struct hci_uart *hu, bool enable)
{
@@ -616,6 +622,7 @@
static int hci_uart_register_dev(struct hci_uart *hu)
{
struct hci_dev *hdev;
+ int err;
BT_DBG("");
@@ -659,11 +666,22 @@
else
hdev->dev_type = HCI_PRIMARY;
+ /* Only call open() for the protocol after hdev is fully initialized as
+ * open() (or a timer/workqueue it starts) may attempt to reference it.
+ */
+ err = hu->proto->open(hu);
+ if (err) {
+ hu->hdev = NULL;
+ hci_free_dev(hdev);
+ return err;
+ }
+
if (test_bit(HCI_UART_INIT_PENDING, &hu->hdev_flags))
return 0;
if (hci_register_dev(hdev) < 0) {
BT_ERR("Can't register HCI device");
+ hu->proto->close(hu);
hu->hdev = NULL;
hci_free_dev(hdev);
return -ENODEV;
@@ -683,20 +701,14 @@
if (!p)
return -EPROTONOSUPPORT;
- err = p->open(hu);
- if (err)
- return err;
-
hu->proto = p;
- set_bit(HCI_UART_PROTO_READY, &hu->flags);
err = hci_uart_register_dev(hu);
if (err) {
- clear_bit(HCI_UART_PROTO_READY, &hu->flags);
- p->close(hu);
return err;
}
+ set_bit(HCI_UART_PROTO_READY, &hu->flags);
return 0;
}
@@ -823,6 +835,7 @@
hci_uart_ldisc.read = hci_uart_tty_read;
hci_uart_ldisc.write = hci_uart_tty_write;
hci_uart_ldisc.ioctl = hci_uart_tty_ioctl;
+ hci_uart_ldisc.compat_ioctl = hci_uart_tty_ioctl;
hci_uart_ldisc.poll = hci_uart_tty_poll;
hci_uart_ldisc.receive_buf = hci_uart_tty_receive;
hci_uart_ldisc.write_wakeup = hci_uart_tty_wakeup;
diff --git a/drivers/bluetooth/hci_ll.c b/drivers/bluetooth/hci_ll.c
index 3e767f2..d9a4c6c 100644
--- a/drivers/bluetooth/hci_ll.c
+++ b/drivers/bluetooth/hci_ll.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Texas Instruments' Bluetooth HCILL UART protocol
*
@@ -11,20 +12,6 @@
* Acknowledgements:
* This file is based on hci_h4.c, which was written
* by Maxim Krasnyansky and Marcel Holtmann.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/module.h>
@@ -141,6 +128,7 @@
if (hu->serdev) {
struct ll_device *lldev = serdev_device_get_drvdata(hu->serdev);
+
if (!IS_ERR(lldev->ext_clk))
clk_prepare_enable(lldev->ext_clk);
}
@@ -175,6 +163,7 @@
if (hu->serdev) {
struct ll_device *lldev = serdev_device_get_drvdata(hu->serdev);
+
gpiod_set_value_cansleep(lldev->enable_gpio, 0);
clk_disable_unprepare(lldev->ext_clk);
@@ -240,7 +229,8 @@
break;
default:
/* any other state is illegal */
- BT_ERR("received HCILL_WAKE_UP_IND in state %ld", ll->hcill_state);
+ BT_ERR("received HCILL_WAKE_UP_IND in state %ld",
+ ll->hcill_state);
break;
}
@@ -269,7 +259,8 @@
/* sanity check */
if (ll->hcill_state != HCILL_AWAKE)
- BT_ERR("ERR: HCILL_GO_TO_SLEEP_IND in state %ld", ll->hcill_state);
+ BT_ERR("ERR: HCILL_GO_TO_SLEEP_IND in state %ld",
+ ll->hcill_state);
/* acknowledge device sleep */
if (send_hcill_cmd(HCILL_GO_TO_SLEEP_ACK, hu) < 0) {
@@ -302,7 +293,8 @@
/* sanity check */
if (ll->hcill_state != HCILL_ASLEEP_TO_AWAKE)
- BT_ERR("received HCILL_WAKE_UP_ACK in state %ld", ll->hcill_state);
+ BT_ERR("received HCILL_WAKE_UP_ACK in state %ld",
+ ll->hcill_state);
/* send pending packets and change state to HCILL_AWAKE */
__ll_do_awake(ll);
@@ -351,7 +343,8 @@
skb_queue_tail(&ll->tx_wait_q, skb);
break;
default:
- BT_ERR("illegal hcill state: %ld (losing packet)", ll->hcill_state);
+ BT_ERR("illegal hcill state: %ld (losing packet)",
+ ll->hcill_state);
kfree_skb(skb);
break;
}
@@ -451,6 +444,7 @@
static struct sk_buff *ll_dequeue(struct hci_uart *hu)
{
struct ll_struct *ll = hu->priv;
+
return skb_dequeue(&ll->txq);
}
@@ -462,7 +456,8 @@
struct sk_buff *skb;
struct hci_rp_read_local_version *ver;
- skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, HCI_INIT_TIMEOUT);
+ skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
+ HCI_INIT_TIMEOUT);
if (IS_ERR(skb)) {
bt_dev_err(hdev, "Reading TI version information failed (%ld)",
PTR_ERR(skb));
@@ -482,11 +477,38 @@
version = le16_to_cpu(ver->lmp_subver);
out:
- if (err) bt_dev_err(hdev, "Failed to read TI version info: %d", err);
+ if (err)
+ bt_dev_err(hdev, "Failed to read TI version info: %d", err);
kfree_skb(skb);
return err ? err : version;
}
+static int send_command_from_firmware(struct ll_device *lldev,
+ struct hci_command *cmd)
+{
+ struct sk_buff *skb;
+
+ if (cmd->opcode == HCI_VS_UPDATE_UART_HCI_BAUDRATE) {
+ /* ignore remote change
+ * baud rate HCI VS command
+ */
+ bt_dev_warn(lldev->hu.hdev,
+ "change remote baud rate command in firmware");
+ return 0;
+ }
+ if (cmd->prefix != 1)
+ bt_dev_dbg(lldev->hu.hdev, "command type %d", cmd->prefix);
+
+ skb = __hci_cmd_sync(lldev->hu.hdev, cmd->opcode, cmd->plen,
+ &cmd->speed, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ bt_dev_err(lldev->hu.hdev, "send command failed");
+ return PTR_ERR(skb);
+ }
+ kfree_skb(skb);
+ return 0;
+}
+
/**
* download_firmware -
* internal function which parses through the .bts firmware
@@ -499,7 +521,6 @@
unsigned char *ptr, *action_ptr;
unsigned char bts_scr_name[40]; /* 40 char long bts scr name? */
const struct firmware *fw;
- struct sk_buff *skb;
struct hci_command *cmd;
version = read_local_version(lldev->hu.hdev);
@@ -541,23 +562,9 @@
case ACTION_SEND_COMMAND: /* action send */
bt_dev_dbg(lldev->hu.hdev, "S");
cmd = (struct hci_command *)action_ptr;
- if (cmd->opcode == HCI_VS_UPDATE_UART_HCI_BAUDRATE) {
- /* ignore remote change
- * baud rate HCI VS command
- */
- bt_dev_warn(lldev->hu.hdev, "change remote baud rate command in firmware");
- break;
- }
- if (cmd->prefix != 1)
- bt_dev_dbg(lldev->hu.hdev, "command type %d", cmd->prefix);
-
- skb = __hci_cmd_sync(lldev->hu.hdev, cmd->opcode, cmd->plen, &cmd->speed, HCI_INIT_TIMEOUT);
- if (IS_ERR(skb)) {
- bt_dev_err(lldev->hu.hdev, "send command failed");
- err = PTR_ERR(skb);
+ err = send_command_from_firmware(lldev, cmd);
+ if (err)
goto out_rel_fw;
- }
- kfree_skb(skb);
break;
case ACTION_WAIT_EVENT: /* wait */
/* no need to wait as command was synchronous */
@@ -689,7 +696,9 @@
serdev_device_set_drvdata(serdev, lldev);
lldev->serdev = hu->serdev = serdev;
- lldev->enable_gpio = devm_gpiod_get_optional(&serdev->dev, "enable", GPIOD_OUT_LOW);
+ lldev->enable_gpio = devm_gpiod_get_optional(&serdev->dev,
+ "enable",
+ GPIOD_OUT_LOW);
if (IS_ERR(lldev->enable_gpio))
return PTR_ERR(lldev->enable_gpio);
diff --git a/drivers/bluetooth/hci_mrvl.c b/drivers/bluetooth/hci_mrvl.c
index ffb0066..fbc3f7c 100644
--- a/drivers/bluetooth/hci_mrvl.c
+++ b/drivers/bluetooth/hci_mrvl.c
@@ -1,24 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* Bluetooth HCI UART driver for marvell devices
*
* Copyright (C) 2016 Marvell International Ltd.
* Copyright (C) 2016 Intel Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/kernel.h>
@@ -27,6 +13,8 @@
#include <linux/firmware.h>
#include <linux/module.h>
#include <linux/tty.h>
+#include <linux/of.h>
+#include <linux/serdev.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
@@ -54,6 +42,10 @@
u8 id, rev;
};
+struct mrvl_serdev {
+ struct hci_uart hu;
+};
+
struct hci_mrvl_pkt {
__le16 lhs;
__le16 rhs;
@@ -63,9 +55,13 @@
static int mrvl_open(struct hci_uart *hu)
{
struct mrvl_data *mrvl;
+ int ret;
BT_DBG("hu %p", hu);
+ if (!hci_uart_has_flow_control(hu))
+ return -EOPNOTSUPP;
+
mrvl = kzalloc(sizeof(*mrvl), GFP_KERNEL);
if (!mrvl)
return -ENOMEM;
@@ -76,7 +72,18 @@
set_bit(STATE_CHIP_VER_PENDING, &mrvl->flags);
hu->priv = mrvl;
+
+ if (hu->serdev) {
+ ret = serdev_device_open(hu->serdev);
+ if (ret)
+ goto err;
+ }
+
return 0;
+err:
+ kfree(mrvl);
+
+ return ret;
}
static int mrvl_close(struct hci_uart *hu)
@@ -85,6 +92,9 @@
BT_DBG("hu %p", hu);
+ if (hu->serdev)
+ serdev_device_close(hu->serdev);
+
skb_queue_purge(&mrvl->txq);
skb_queue_purge(&mrvl->rawq);
kfree_skb(mrvl->rx_skb);
@@ -353,7 +363,14 @@
return -EINVAL;
}
- hci_uart_set_baudrate(hu, 3000000);
+ /* Let the final ack go out before switching the baudrate */
+ hci_uart_wait_until_sent(hu);
+
+ if (hu->serdev)
+ serdev_device_set_baudrate(hu->serdev, 3000000);
+ else
+ hci_uart_set_baudrate(hu, 3000000);
+
hci_uart_set_flow_control(hu, false);
err = mrvl_load_firmware(hu->hdev, "mrvl/uart8897_bt.bin");
@@ -376,12 +393,54 @@
.dequeue = mrvl_dequeue,
};
+static int mrvl_serdev_probe(struct serdev_device *serdev)
+{
+ struct mrvl_serdev *mrvldev;
+
+ mrvldev = devm_kzalloc(&serdev->dev, sizeof(*mrvldev), GFP_KERNEL);
+ if (!mrvldev)
+ return -ENOMEM;
+
+ mrvldev->hu.serdev = serdev;
+ serdev_device_set_drvdata(serdev, mrvldev);
+
+ return hci_uart_register_device(&mrvldev->hu, &mrvl_proto);
+}
+
+static void mrvl_serdev_remove(struct serdev_device *serdev)
+{
+ struct mrvl_serdev *mrvldev = serdev_device_get_drvdata(serdev);
+
+ hci_uart_unregister_device(&mrvldev->hu);
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id mrvl_bluetooth_of_match[] = {
+ { .compatible = "mrvl,88w8897" },
+ { },
+};
+MODULE_DEVICE_TABLE(of, mrvl_bluetooth_of_match);
+#endif
+
+static struct serdev_device_driver mrvl_serdev_driver = {
+ .probe = mrvl_serdev_probe,
+ .remove = mrvl_serdev_remove,
+ .driver = {
+ .name = "hci_uart_mrvl",
+ .of_match_table = of_match_ptr(mrvl_bluetooth_of_match),
+ },
+};
+
int __init mrvl_init(void)
{
+ serdev_device_driver_register(&mrvl_serdev_driver);
+
return hci_uart_register_proto(&mrvl_proto);
}
int __exit mrvl_deinit(void)
{
+ serdev_device_driver_unregister(&mrvl_serdev_driver);
+
return hci_uart_unregister_proto(&mrvl_proto);
}
diff --git a/drivers/bluetooth/hci_nokia.c b/drivers/bluetooth/hci_nokia.c
index 2dc33e6..6463350 100644
--- a/drivers/bluetooth/hci_nokia.c
+++ b/drivers/bluetooth/hci_nokia.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Bluetooth HCI UART H4 driver with Nokia Extensions AKA Nokia H4+
*
* Copyright (C) 2015 Marcel Holtmann <marcel@holtmann.org>
* Copyright (C) 2015-2017 Sebastian Reichel <sre@kernel.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
*/
#include <linux/clk.h>
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index f0d593c..e3164c2 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Bluetooth Software UART Qualcomm protocol
*
@@ -12,24 +13,11 @@
* Written by Ohad Ben-Cohen <ohad@bencohen.org>
* which was in turn based on hci_h4.c, which was written
* by Maxim Krasnyansky and Marcel Holtmann.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/kernel.h>
#include <linux/clk.h>
+#include <linux/completion.h>
#include <linux/debugfs.h>
#include <linux/delay.h>
#include <linux/device.h>
@@ -40,6 +28,7 @@
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
#include <linux/serdev.h>
+#include <asm/unaligned.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
@@ -53,16 +42,21 @@
#define HCI_IBS_WAKE_ACK 0xFC
#define HCI_MAX_IBS_SIZE 10
-/* Controller states */
-#define STATE_IN_BAND_SLEEP_ENABLED 1
-
#define IBS_WAKE_RETRANS_TIMEOUT_MS 100
#define IBS_TX_IDLE_TIMEOUT_MS 2000
-#define BAUDRATE_SETTLE_TIMEOUT_MS 300
+#define CMD_TRANS_TIMEOUT_MS 100
/* susclk rate */
#define SUSCLK_RATE_32KHZ 32768
+/* Controller debug log header */
+#define QCA_DEBUG_HANDLE 0x2EDC
+
+enum qca_flags {
+ QCA_IBS_ENABLED,
+ QCA_DROP_VENDOR_EVENT,
+};
+
/* HCI_IBS transmit side sleep protocol states */
enum tx_ibs_states {
HCI_IBS_TX_ASLEEP,
@@ -105,6 +99,7 @@
struct work_struct ws_rx_vote_off;
struct work_struct ws_tx_vote_off;
unsigned long flags;
+ struct completion drop_ev_comp;
/* For debugging purpose */
u64 ibs_sent_wacks;
@@ -164,10 +159,38 @@
struct qca_power *bt_power;
u32 init_speed;
u32 oper_speed;
+ const char *firmware_name;
};
static int qca_power_setup(struct hci_uart *hu, bool on);
static void qca_power_shutdown(struct hci_uart *hu);
+static int qca_power_off(struct hci_dev *hdev);
+
+static enum qca_btsoc_type qca_soc_type(struct hci_uart *hu)
+{
+ enum qca_btsoc_type soc_type;
+
+ if (hu->serdev) {
+ struct qca_serdev *qsd = serdev_device_get_drvdata(hu->serdev);
+
+ soc_type = qsd->btsoc_type;
+ } else {
+ soc_type = QCA_ROME;
+ }
+
+ return soc_type;
+}
+
+static const char *qca_get_firmware_name(struct hci_uart *hu)
+{
+ if (hu->serdev) {
+ struct qca_serdev *qsd = serdev_device_get_drvdata(hu->serdev);
+
+ return qsd->firmware_name;
+ } else {
+ return NULL;
+ }
+}
static void __serial_clock_on(struct tty_struct *tty)
{
@@ -286,13 +309,14 @@
ws_awake_device);
struct hci_uart *hu = qca->hu;
unsigned long retrans_delay;
+ unsigned long flags;
BT_DBG("hu %p wq awake device", hu);
/* Vote for serial clock */
serial_clock_vote(HCI_IBS_TX_VOTE_CLOCK_ON, hu);
- spin_lock(&qca->hci_ibs_lock);
+ spin_lock_irqsave(&qca->hci_ibs_lock, flags);
/* Send wake indication to device */
if (send_hci_ibs_cmd(HCI_IBS_WAKE_IND, hu) < 0)
@@ -304,7 +328,7 @@
retrans_delay = msecs_to_jiffies(qca->wake_retrans);
mod_timer(&qca->wake_retrans_timer, jiffies + retrans_delay);
- spin_unlock(&qca->hci_ibs_lock);
+ spin_unlock_irqrestore(&qca->hci_ibs_lock, flags);
/* Actually send the packets */
hci_uart_tx_wakeup(hu);
@@ -315,12 +339,13 @@
struct qca_data *qca = container_of(work, struct qca_data,
ws_awake_rx);
struct hci_uart *hu = qca->hu;
+ unsigned long flags;
BT_DBG("hu %p wq awake rx", hu);
serial_clock_vote(HCI_IBS_RX_VOTE_CLOCK_ON, hu);
- spin_lock(&qca->hci_ibs_lock);
+ spin_lock_irqsave(&qca->hci_ibs_lock, flags);
qca->rx_ibs_state = HCI_IBS_RX_AWAKE;
/* Always acknowledge device wake up,
@@ -331,7 +356,7 @@
qca->ibs_sent_wacks++;
- spin_unlock(&qca->hci_ibs_lock);
+ spin_unlock_irqrestore(&qca->hci_ibs_lock, flags);
/* Actually send the packets */
hci_uart_tx_wakeup(hu);
@@ -450,6 +475,9 @@
BT_DBG("hu %p qca_open", hu);
+ if (!hci_uart_has_flow_control(hu))
+ return -EOPNOTSUPP;
+
qca = kzalloc(sizeof(struct qca_data), GFP_KERNEL);
if (!qca)
return -ENOMEM;
@@ -470,40 +498,23 @@
INIT_WORK(&qca->ws_tx_vote_off, qca_wq_serial_tx_clock_vote_off);
qca->hu = hu;
+ init_completion(&qca->drop_ev_comp);
/* Assume we start with both sides asleep -- extra wakes OK */
qca->tx_ibs_state = HCI_IBS_TX_ASLEEP;
qca->rx_ibs_state = HCI_IBS_RX_ASLEEP;
- /* clocks actually on, but we start votes off */
- qca->tx_vote = false;
- qca->rx_vote = false;
- qca->flags = 0;
-
- qca->ibs_sent_wacks = 0;
- qca->ibs_sent_slps = 0;
- qca->ibs_sent_wakes = 0;
- qca->ibs_recv_wacks = 0;
- qca->ibs_recv_slps = 0;
- qca->ibs_recv_wakes = 0;
qca->vote_last_jif = jiffies;
- qca->vote_on_ms = 0;
- qca->vote_off_ms = 0;
- qca->votes_on = 0;
- qca->votes_off = 0;
- qca->tx_votes_on = 0;
- qca->tx_votes_off = 0;
- qca->rx_votes_on = 0;
- qca->rx_votes_off = 0;
hu->priv = qca;
if (hu->serdev) {
- serdev_device_open(hu->serdev);
qcadev = serdev_device_get_drvdata(hu->serdev);
- if (qcadev->btsoc_type != QCA_WCN3990) {
+ if (!qca_is_wcn399x(qcadev->btsoc_type)) {
gpiod_set_value_cansleep(qcadev->bt_en, 1);
+ /* Controller needs time to bootup. */
+ msleep(150);
} else {
hu->init_speed = qcadev->init_speed;
hu->oper_speed = qcadev->oper_speed;
@@ -608,12 +619,11 @@
if (hu->serdev) {
qcadev = serdev_device_get_drvdata(hu->serdev);
- if (qcadev->btsoc_type == QCA_WCN3990)
+ if (qca_is_wcn399x(qcadev->btsoc_type))
qca_power_shutdown(hu);
else
gpiod_set_value_cansleep(qcadev->bt_en, 0);
- serdev_device_close(hu->serdev);
}
kfree_skb(qca->rx_skb);
@@ -678,7 +688,7 @@
unsigned long flags;
struct qca_data *qca = hu->priv;
- BT_DBG("hu %p want to sleep", hu);
+ BT_DBG("hu %p want to sleep in %d state", hu, qca->rx_ibs_state);
spin_lock_irqsave(&qca->hci_ibs_lock, flags);
@@ -693,7 +703,7 @@
break;
case HCI_IBS_RX_ASLEEP:
- /* Fall through */
+ break;
default:
/* Any other state is illegal */
@@ -767,16 +777,17 @@
/* Prepend skb with frame type */
memcpy(skb_push(skb, 1), &hci_skb_pkt_type(skb), 1);
+ spin_lock_irqsave(&qca->hci_ibs_lock, flags);
+
/* Don't go to sleep in middle of patch download or
* Out-Of-Band(GPIOs control) sleep is selected.
*/
- if (!test_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags)) {
+ if (!test_bit(QCA_IBS_ENABLED, &qca->flags)) {
skb_queue_tail(&qca->txq, skb);
+ spin_unlock_irqrestore(&qca->hci_ibs_lock, flags);
return 0;
}
- spin_lock_irqsave(&qca->hci_ibs_lock, flags);
-
/* Act according to current state */
switch (qca->tx_ibs_state) {
case HCI_IBS_TX_AWAKE:
@@ -850,6 +861,48 @@
return 0;
}
+static int qca_recv_acl_data(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ /* We receive debug logs from chip as an ACL packets.
+ * Instead of sending the data to ACL to decode the
+ * received data, we are pushing them to the above layers
+ * as a diagnostic packet.
+ */
+ if (get_unaligned_le16(skb->data) == QCA_DEBUG_HANDLE)
+ return hci_recv_diag(hdev, skb);
+
+ return hci_recv_frame(hdev, skb);
+}
+
+static int qca_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct hci_uart *hu = hci_get_drvdata(hdev);
+ struct qca_data *qca = hu->priv;
+
+ if (test_bit(QCA_DROP_VENDOR_EVENT, &qca->flags)) {
+ struct hci_event_hdr *hdr = (void *)skb->data;
+
+ /* For the WCN3990 the vendor command for a baudrate change
+ * isn't sent as synchronous HCI command, because the
+ * controller sends the corresponding vendor event with the
+ * new baudrate. The event is received and properly decoded
+ * after changing the baudrate of the host port. It needs to
+ * be dropped, otherwise it can be misinterpreted as
+ * response to a later firmware download command (also a
+ * vendor command).
+ */
+
+ if (hdr->evt == HCI_EV_VENDOR)
+ complete(&qca->drop_ev_comp);
+
+ kfree_skb(skb);
+
+ return 0;
+ }
+
+ return hci_recv_frame(hdev, skb);
+}
+
#define QCA_IBS_SLEEP_IND_EVENT \
.type = HCI_IBS_SLEEP_IND, \
.hlen = 0, \
@@ -872,9 +925,9 @@
.maxlen = HCI_MAX_IBS_SIZE
static const struct h4_recv_pkt qca_recv_pkts[] = {
- { H4_RECV_ACL, .recv = hci_recv_frame },
+ { H4_RECV_ACL, .recv = qca_recv_acl_data },
{ H4_RECV_SCO, .recv = hci_recv_frame },
- { H4_RECV_EVENT, .recv = hci_recv_frame },
+ { H4_RECV_EVENT, .recv = qca_recv_event },
{ QCA_IBS_WAKE_IND_EVENT, .recv = qca_ibs_wake_ind },
{ QCA_IBS_WAKE_ACK_EVENT, .recv = qca_ibs_wake_ack },
{ QCA_IBS_SLEEP_IND_EVENT, .recv = qca_ibs_sleep_ind },
@@ -947,7 +1000,6 @@
struct hci_uart *hu = hci_get_drvdata(hdev);
struct qca_data *qca = hu->priv;
struct sk_buff *skb;
- struct qca_serdev *qcadev;
u8 cmd[] = { 0x01, 0x48, 0xFC, 0x01, 0x00 };
if (baudrate > QCA_BAUDRATE_3200000)
@@ -961,13 +1013,6 @@
return -ENOMEM;
}
- /* Disabling hardware flow control is mandatory while
- * sending change baudrate request to wcn3990 SoC.
- */
- qcadev = serdev_device_get_drvdata(hu->serdev);
- if (qcadev->btsoc_type == QCA_WCN3990)
- hci_uart_set_flow_control(hu, true);
-
/* Assign commands to change baudrate and packet type. */
skb_put_data(skb, cmd, sizeof(cmd));
hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
@@ -975,16 +1020,20 @@
skb_queue_tail(&qca->txq, skb);
hci_uart_tx_wakeup(hu);
- /* wait 300ms to change new baudrate on controller side
- * controller will come back after they receive this HCI command
- * then host can communicate with new baudrate to controller
- */
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(msecs_to_jiffies(BAUDRATE_SETTLE_TIMEOUT_MS));
- set_current_state(TASK_RUNNING);
+ /* Wait for the baudrate change request to be sent */
- if (qcadev->btsoc_type == QCA_WCN3990)
- hci_uart_set_flow_control(hu, false);
+ while (!skb_queue_empty(&qca->txq))
+ usleep_range(100, 200);
+
+ if (hu->serdev)
+ serdev_device_wait_until_sent(hu->serdev,
+ msecs_to_jiffies(CMD_TRANS_TIMEOUT_MS));
+
+ /* Give the controller time to process the request */
+ if (qca_is_wcn399x(qca_soc_type(hu)))
+ msleep(10);
+ else
+ msleep(300);
return 0;
}
@@ -997,11 +1046,11 @@
hci_uart_set_baudrate(hu, speed);
}
-static int qca_send_power_pulse(struct hci_dev *hdev, u8 cmd)
+static int qca_send_power_pulse(struct hci_uart *hu, bool on)
{
- struct hci_uart *hu = hci_get_drvdata(hdev);
- struct qca_data *qca = hu->priv;
- struct sk_buff *skb;
+ int ret;
+ int timeout = msecs_to_jiffies(CMD_TRANS_TIMEOUT_MS);
+ u8 cmd = on ? QCA_WCN3990_POWERON_PULSE : QCA_WCN3990_POWEROFF_PULSE;
/* These power pulses are single byte command which are sent
* at required baudrate to wcn3990. On wcn3990, we have an external
@@ -1013,24 +1062,25 @@
* save power. Disabling hardware flow control is mandatory while
* sending power pulses to SoC.
*/
- bt_dev_dbg(hdev, "sending power pulse %02x to SoC", cmd);
+ bt_dev_dbg(hu->hdev, "sending power pulse %02x to controller", cmd);
- skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
- if (!skb)
- return -ENOMEM;
-
+ serdev_device_write_flush(hu->serdev);
hci_uart_set_flow_control(hu, true);
+ ret = serdev_device_write_buf(hu->serdev, &cmd, sizeof(cmd));
+ if (ret < 0) {
+ bt_dev_err(hu->hdev, "failed to send power pulse %02x", cmd);
+ return ret;
+ }
- skb_put_u8(skb, cmd);
- hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
-
- skb_queue_tail(&qca->txq, skb);
- hci_uart_tx_wakeup(hu);
-
- /* Wait for 100 uS for SoC to settle down */
- usleep_range(100, 200);
+ serdev_device_wait_until_sent(hu->serdev, timeout);
hci_uart_set_flow_control(hu, false);
+ /* Give to controller time to boot/shutdown */
+ if (on)
+ msleep(100);
+ else
+ msleep(10);
+
return 0;
}
@@ -1056,10 +1106,7 @@
static int qca_check_speeds(struct hci_uart *hu)
{
- struct qca_serdev *qcadev;
-
- qcadev = serdev_device_get_drvdata(hu->serdev);
- if (qcadev->btsoc_type == QCA_WCN3990) {
+ if (qca_is_wcn399x(qca_soc_type(hu))) {
if (!qca_get_speed(hu, QCA_INIT_SPEED) &&
!qca_get_speed(hu, QCA_OPER_SPEED))
return -EINVAL;
@@ -1075,48 +1122,94 @@
static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type)
{
unsigned int speed, qca_baudrate;
- int ret;
+ struct qca_data *qca = hu->priv;
+ int ret = 0;
if (speed_type == QCA_INIT_SPEED) {
speed = qca_get_speed(hu, QCA_INIT_SPEED);
if (speed)
host_set_baudrate(hu, speed);
} else {
+ enum qca_btsoc_type soc_type = qca_soc_type(hu);
+
speed = qca_get_speed(hu, QCA_OPER_SPEED);
if (!speed)
return 0;
+ /* Disable flow control for wcn3990 to deassert RTS while
+ * changing the baudrate of chip and host.
+ */
+ if (qca_is_wcn399x(soc_type))
+ hci_uart_set_flow_control(hu, true);
+
+ if (soc_type == QCA_WCN3990) {
+ reinit_completion(&qca->drop_ev_comp);
+ set_bit(QCA_DROP_VENDOR_EVENT, &qca->flags);
+ }
+
qca_baudrate = qca_get_baudrate_value(speed);
bt_dev_dbg(hu->hdev, "Set UART speed to %d", speed);
ret = qca_set_baudrate(hu->hdev, qca_baudrate);
if (ret)
- return ret;
+ goto error;
host_set_baudrate(hu, speed);
+
+error:
+ if (qca_is_wcn399x(soc_type))
+ hci_uart_set_flow_control(hu, false);
+
+ if (soc_type == QCA_WCN3990) {
+ /* Wait for the controller to send the vendor event
+ * for the baudrate change command.
+ */
+ if (!wait_for_completion_timeout(&qca->drop_ev_comp,
+ msecs_to_jiffies(100))) {
+ bt_dev_err(hu->hdev,
+ "Failed to change controller baudrate\n");
+ ret = -ETIMEDOUT;
+ }
+
+ clear_bit(QCA_DROP_VENDOR_EVENT, &qca->flags);
+ }
}
- return 0;
+ return ret;
}
static int qca_wcn3990_init(struct hci_uart *hu)
{
- struct hci_dev *hdev = hu->hdev;
+ struct qca_serdev *qcadev;
int ret;
+ /* Check for vregs status, may be hci down has turned
+ * off the voltage regulator.
+ */
+ qcadev = serdev_device_get_drvdata(hu->serdev);
+ if (!qcadev->bt_power->vregs_on) {
+ serdev_device_close(hu->serdev);
+ ret = qca_power_setup(hu, true);
+ if (ret)
+ return ret;
+
+ ret = serdev_device_open(hu->serdev);
+ if (ret) {
+ bt_dev_err(hu->hdev, "failed to open port");
+ return ret;
+ }
+ }
+
/* Forcefully enable wcn3990 to enter in to boot mode. */
host_set_baudrate(hu, 2400);
- ret = qca_send_power_pulse(hdev, QCA_WCN3990_POWEROFF_PULSE);
+ ret = qca_send_power_pulse(hu, false);
if (ret)
return ret;
qca_set_speed(hu, QCA_INIT_SPEED);
- ret = qca_send_power_pulse(hdev, QCA_WCN3990_POWERON_PULSE);
+ ret = qca_send_power_pulse(hu, true);
if (ret)
return ret;
- /* Wait for 100 ms for SoC to boot */
- msleep(100);
-
/* Now the device is in ready state to communicate with host.
* To sync host with device we need to reopen port.
* Without this, we will have RTS and CTS synchronization
@@ -1139,21 +1232,32 @@
struct hci_dev *hdev = hu->hdev;
struct qca_data *qca = hu->priv;
unsigned int speed, qca_baudrate = QCA_BAUDRATE_115200;
- struct qca_serdev *qcadev;
+ enum qca_btsoc_type soc_type = qca_soc_type(hu);
+ const char *firmware_name = qca_get_firmware_name(hu);
int ret;
int soc_ver = 0;
- qcadev = serdev_device_get_drvdata(hu->serdev);
-
ret = qca_check_speeds(hu);
if (ret)
return ret;
/* Patch downloading has to be done without IBS mode */
- clear_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);
+ clear_bit(QCA_IBS_ENABLED, &qca->flags);
- if (qcadev->btsoc_type == QCA_WCN3990) {
+ /* Enable controller to do both LE scan and BR/EDR inquiry
+ * simultaneously.
+ */
+ set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
+
+ if (qca_is_wcn399x(soc_type)) {
bt_dev_info(hdev, "setting up wcn3990");
+
+ /* Enable NON_PERSISTENT_SETUP QUIRK to ensure to execute
+ * setup for every hci up.
+ */
+ set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
+ set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
+ hu->hdev->shutdown = qca_power_off;
ret = qca_wcn3990_init(hu);
if (ret)
return ret;
@@ -1176,7 +1280,7 @@
qca_baudrate = qca_get_baudrate_value(speed);
}
- if (qcadev->btsoc_type != QCA_WCN3990) {
+ if (!qca_is_wcn399x(soc_type)) {
/* Get QCA version information */
ret = qca_read_soc_version(hdev, &soc_ver);
if (ret)
@@ -1185,9 +1289,10 @@
bt_dev_info(hdev, "QCA controller version 0x%08x", soc_ver);
/* Setup patch / NVM configurations */
- ret = qca_uart_setup(hdev, qca_baudrate, qcadev->btsoc_type, soc_ver);
+ ret = qca_uart_setup(hdev, qca_baudrate, soc_type, soc_ver,
+ firmware_name);
if (!ret) {
- set_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);
+ set_bit(QCA_IBS_ENABLED, &qca->flags);
qca_debugfs_init(hdev);
} else if (ret == -ENOENT) {
/* No patch/nvm-config found, run with original fw/config */
@@ -1201,12 +1306,15 @@
}
/* Setup bdaddr */
- hu->hdev->set_bdaddr = qca_set_bdaddr_rome;
+ if (qca_is_wcn399x(soc_type))
+ hu->hdev->set_bdaddr = qca_set_bdaddr;
+ else
+ hu->hdev->set_bdaddr = qca_set_bdaddr_rome;
return ret;
}
-static struct hci_uart_proto qca_proto = {
+static const struct hci_uart_proto qca_proto = {
.id = HCI_UART_QCA,
.name = "QCA",
.manufacturer = 29,
@@ -1221,7 +1329,7 @@
.dequeue = qca_dequeue,
};
-static const struct qca_vreg_data qca_soc_data = {
+static const struct qca_vreg_data qca_soc_data_wcn3990 = {
.soc_type = QCA_WCN3990,
.vregs = (struct qca_vreg []) {
{ "vddio", 1800000, 1900000, 15000 },
@@ -1232,18 +1340,49 @@
.num_vregs = 4,
};
+static const struct qca_vreg_data qca_soc_data_wcn3998 = {
+ .soc_type = QCA_WCN3998,
+ .vregs = (struct qca_vreg []) {
+ { "vddio", 1800000, 1900000, 10000 },
+ { "vddxo", 1800000, 1900000, 80000 },
+ { "vddrf", 1300000, 1352000, 300000 },
+ { "vddch0", 3300000, 3300000, 450000 },
+ },
+ .num_vregs = 4,
+};
+
static void qca_power_shutdown(struct hci_uart *hu)
{
- struct serdev_device *serdev = hu->serdev;
- unsigned char cmd = QCA_WCN3990_POWEROFF_PULSE;
+ struct qca_data *qca = hu->priv;
+ unsigned long flags;
+
+ /* From this point we go into power off state. But serial port is
+ * still open, stop queueing the IBS data and flush all the buffered
+ * data in skb's.
+ */
+ spin_lock_irqsave(&qca->hci_ibs_lock, flags);
+ clear_bit(QCA_IBS_ENABLED, &qca->flags);
+ qca_flush(hu);
+ spin_unlock_irqrestore(&qca->hci_ibs_lock, flags);
host_set_baudrate(hu, 2400);
- hci_uart_set_flow_control(hu, true);
- serdev_device_write_buf(serdev, &cmd, sizeof(cmd));
- hci_uart_set_flow_control(hu, false);
+ qca_send_power_pulse(hu, false);
qca_power_setup(hu, false);
}
+static int qca_power_off(struct hci_dev *hdev)
+{
+ struct hci_uart *hu = hci_get_drvdata(hdev);
+
+ /* Perform pre shutdown command */
+ qca_send_pre_shutdown_cmd(hdev);
+
+ usleep_range(8000, 10000);
+
+ qca_power_shutdown(hu);
+ return 0;
+}
+
static int qca_enable_regulator(struct qca_vreg vregs,
struct regulator *regulator)
{
@@ -1350,8 +1489,10 @@
qcadev->serdev_hu.serdev = serdev;
data = of_device_get_match_data(&serdev->dev);
serdev_device_set_drvdata(serdev, qcadev);
- if (data && data->soc_type == QCA_WCN3990) {
- qcadev->btsoc_type = QCA_WCN3990;
+ device_property_read_string(&serdev->dev, "firmware-name",
+ &qcadev->firmware_name);
+ if (data && qca_is_wcn399x(data->soc_type)) {
+ qcadev->btsoc_type = data->soc_type;
qcadev->bt_power = devm_kzalloc(&serdev->dev,
sizeof(struct qca_power),
GFP_KERNEL);
@@ -1415,7 +1556,7 @@
{
struct qca_serdev *qcadev = serdev_device_get_drvdata(serdev);
- if (qcadev->btsoc_type == QCA_WCN3990)
+ if (qca_is_wcn399x(qcadev->btsoc_type))
qca_power_shutdown(&qcadev->serdev_hu);
else
clk_disable_unprepare(qcadev->susclk);
@@ -1425,7 +1566,8 @@
static const struct of_device_id qca_bluetooth_of_match[] = {
{ .compatible = "qcom,qca6174-bt" },
- { .compatible = "qcom,wcn3990-bt", .data = &qca_soc_data},
+ { .compatible = "qcom,wcn3990-bt", .data = &qca_soc_data_wcn3990},
+ { .compatible = "qcom,wcn3998-bt", .data = &qca_soc_data_wcn3998},
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, qca_bluetooth_of_match);
diff --git a/drivers/bluetooth/hci_serdev.c b/drivers/bluetooth/hci_serdev.c
index aa2543b..4652896 100644
--- a/drivers/bluetooth/hci_serdev.c
+++ b/drivers/bluetooth/hci_serdev.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Bluetooth HCI serdev driver lib
*
@@ -8,17 +9,6 @@
* Copyright (C) 2000-2001 Qualcomm Incorporated
* Copyright (C) 2002-2003 Maxim Krasnyansky <maxk@qualcomm.com>
* Copyright (C) 2004-2005 Marcel Holtmann <marcel@holtmann.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
*/
#include <linux/kernel.h>
@@ -57,9 +47,10 @@
{
struct sk_buff *skb = hu->tx_skb;
- if (!skb)
- skb = hu->proto->dequeue(hu);
- else
+ if (!skb) {
+ if (test_bit(HCI_UART_PROTO_READY, &hu->flags))
+ skb = hu->proto->dequeue(hu);
+ } else
hu->tx_skb = NULL;
return skb;
@@ -94,7 +85,7 @@
hci_uart_tx_complete(hu, hci_skb_pkt_type(skb));
kfree_skb(skb);
}
- } while(test_bit(HCI_UART_TX_WAKEUP, &hu->tx_state));
+ } while (test_bit(HCI_UART_TX_WAKEUP, &hu->tx_state));
clear_bit(HCI_UART_SENDING, &hu->tx_state);
}
@@ -332,9 +323,6 @@
if (test_bit(HCI_UART_EXT_CONFIG, &hu->hdev_flags))
set_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks);
- if (!test_bit(HCI_UART_RESET_ON_INIT, &hu->hdev_flags))
- set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
-
if (test_bit(HCI_UART_CREATE_AMP, &hu->hdev_flags))
hdev->dev_type = HCI_AMP;
else
@@ -368,6 +356,7 @@
{
struct hci_dev *hdev = hu->hdev;
+ clear_bit(HCI_UART_PROTO_READY, &hu->flags);
hci_unregister_dev(hdev);
hci_free_dev(hdev);
diff --git a/drivers/bluetooth/hci_uart.h b/drivers/bluetooth/hci_uart.h
index 00cab2f..6ab6311 100644
--- a/drivers/bluetooth/hci_uart.h
+++ b/drivers/bluetooth/hci_uart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
*
* Bluetooth HCI UART driver
@@ -5,22 +6,6 @@
* Copyright (C) 2000-2001 Qualcomm Incorporated
* Copyright (C) 2002-2003 Maxim Krasnyansky <maxk@qualcomm.com>
* Copyright (C) 2004-2005 Marcel Holtmann <marcel@holtmann.org>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#ifndef N_HCI
@@ -115,9 +100,11 @@
void hci_uart_unregister_device(struct hci_uart *hu);
int hci_uart_tx_wakeup(struct hci_uart *hu);
+int hci_uart_wait_until_sent(struct hci_uart *hu);
int hci_uart_init_ready(struct hci_uart *hu);
void hci_uart_init_work(struct work_struct *work);
void hci_uart_set_baudrate(struct hci_uart *hu, unsigned int speed);
+bool hci_uart_has_flow_control(struct hci_uart *hu);
void hci_uart_set_flow_control(struct hci_uart *hu, bool enable);
void hci_uart_set_speeds(struct hci_uart *hu, unsigned int init_speed,
unsigned int oper_speed);
diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index 22f9145..65e41c1 100644
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* Bluetooth virtual HCI driver
@@ -5,22 +6,6 @@
* Copyright (C) 2000-2001 Qualcomm Incorporated
* Copyright (C) 2002-2003 Maxim Krasnyansky <maxk@qualcomm.com>
* Copyright (C) 2004-2006 Marcel Holtmann <marcel@holtmann.org>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/module.h>