v4.19.13 snapshot.
diff --git a/drivers/media/rc/ati_remote.c b/drivers/media/rc/ati_remote.c
new file mode 100644
index 0000000..8e82610
--- /dev/null
+++ b/drivers/media/rc/ati_remote.c
@@ -0,0 +1,978 @@
+/*
+ * USB ATI Remote support
+ *
+ * Copyright (c) 2011, 2012 Anssi Hannula <anssi.hannula@iki.fi>
+ * Version 2.2.0 Copyright (c) 2004 Torrey Hoffman <thoffman@arnor.net>
+ * Version 2.1.1 Copyright (c) 2002 Vladimir Dergachev
+ *
+ * This 2.2.0 version is a rewrite / cleanup of the 2.1.1 driver, including
+ * porting to the 2.6 kernel interfaces, along with other modification
+ * to better match the style of the existing usb/input drivers. However, the
+ * protocol and hardware handling is essentially unchanged from 2.1.1.
+ *
+ * The 2.1.1 driver was derived from the usbati_remote and usbkbd drivers by
+ * Vojtech Pavlik.
+ *
+ * Changes:
+ *
+ * Feb 2004: Torrey Hoffman <thoffman@arnor.net>
+ * Version 2.2.0
+ * Jun 2004: Torrey Hoffman <thoffman@arnor.net>
+ * Version 2.2.1
+ * Added key repeat support contributed by:
+ * Vincent Vanackere <vanackere@lif.univ-mrs.fr>
+ * Added support for the "Lola" remote contributed by:
+ * Seth Cohn <sethcohn@yahoo.com>
+ *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ *
+ * 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.
+ *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ *
+ * Hardware & software notes
+ *
+ * These remote controls are distributed by ATI as part of their
+ * "All-In-Wonder" video card packages. The receiver self-identifies as a
+ * "USB Receiver" with manufacturer "X10 Wireless Technology Inc".
+ *
+ * The "Lola" remote is available from X10. See:
+ * http://www.x10.com/products/lola_sg1.htm
+ * The Lola is similar to the ATI remote but has no mouse support, and slightly
+ * different keys.
+ *
+ * It is possible to use multiple receivers and remotes on multiple computers
+ * simultaneously by configuring them to use specific channels.
+ *
+ * The RF protocol used by the remote supports 16 distinct channels, 1 to 16.
+ * Actually, it may even support more, at least in some revisions of the
+ * hardware.
+ *
+ * Each remote can be configured to transmit on one channel as follows:
+ * - Press and hold the "hand icon" button.
+ * - When the red LED starts to blink, let go of the "hand icon" button.
+ * - When it stops blinking, input the channel code as two digits, from 01
+ * to 16, and press the hand icon again.
+ *
+ * The timing can be a little tricky. Try loading the module with debug=1
+ * to have the kernel print out messages about the remote control number
+ * and mask. Note: debugging prints remote numbers as zero-based hexadecimal.
+ *
+ * The driver has a "channel_mask" parameter. This bitmask specifies which
+ * channels will be ignored by the module. To mask out channels, just add
+ * all the 2^channel_number values together.
+ *
+ * For instance, set channel_mask = 2^4 = 16 (binary 10000) to make ati_remote
+ * ignore signals coming from remote controls transmitting on channel 4, but
+ * accept all other channels.
+ *
+ * Or, set channel_mask = 65533, (0xFFFD), and all channels except 1 will be
+ * ignored.
+ *
+ * The default is 0 (respond to all channels). Bit 0 and bits 17-32 of this
+ * parameter are unused.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/usb/input.h>
+#include <linux/wait.h>
+#include <linux/jiffies.h>
+#include <media/rc-core.h>
+
+/*
+ * Module and Version Information, Module Parameters
+ */
+
+#define ATI_REMOTE_VENDOR_ID 0x0bc7
+#define LOLA_REMOTE_PRODUCT_ID 0x0002
+#define LOLA2_REMOTE_PRODUCT_ID 0x0003
+#define ATI_REMOTE_PRODUCT_ID 0x0004
+#define NVIDIA_REMOTE_PRODUCT_ID 0x0005
+#define MEDION_REMOTE_PRODUCT_ID 0x0006
+#define FIREFLY_REMOTE_PRODUCT_ID 0x0008
+
+#define DRIVER_VERSION "2.2.1"
+#define DRIVER_AUTHOR "Torrey Hoffman <thoffman@arnor.net>"
+#define DRIVER_DESC "ATI/X10 RF USB Remote Control"
+
+#define NAME_BUFSIZE 80 /* size of product name, path buffers */
+#define DATA_BUFSIZE 63 /* size of URB data buffers */
+
+/*
+ * Duplicate event filtering time.
+ * Sequential, identical KIND_FILTERED inputs with less than
+ * FILTER_TIME milliseconds between them are considered as repeat
+ * events. The hardware generates 5 events for the first keypress
+ * and we have to take this into account for an accurate repeat
+ * behaviour.
+ */
+#define FILTER_TIME 60 /* msec */
+#define REPEAT_DELAY 500 /* msec */
+
+static unsigned long channel_mask;
+module_param(channel_mask, ulong, 0644);
+MODULE_PARM_DESC(channel_mask, "Bitmask of remote control channels to ignore");
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Enable extra debug messages and information");
+
+static int repeat_filter = FILTER_TIME;
+module_param(repeat_filter, int, 0644);
+MODULE_PARM_DESC(repeat_filter, "Repeat filter time, default = 60 msec");
+
+static int repeat_delay = REPEAT_DELAY;
+module_param(repeat_delay, int, 0644);
+MODULE_PARM_DESC(repeat_delay, "Delay before sending repeats, default = 500 msec");
+
+static bool mouse = true;
+module_param(mouse, bool, 0444);
+MODULE_PARM_DESC(mouse, "Enable mouse device, default = yes");
+
+#define dbginfo(dev, format, arg...) \
+ do { if (debug) dev_info(dev , format , ## arg); } while (0)
+#undef err
+#define err(format, arg...) printk(KERN_ERR format , ## arg)
+
+struct ati_receiver_type {
+ /* either default_keymap or get_default_keymap should be set */
+ const char *default_keymap;
+ const char *(*get_default_keymap)(struct usb_interface *interface);
+};
+
+static const char *get_medion_keymap(struct usb_interface *interface)
+{
+ struct usb_device *udev = interface_to_usbdev(interface);
+
+ /*
+ * There are many different Medion remotes shipped with a receiver
+ * with the same usb id, but the receivers have subtle differences
+ * in the USB descriptors allowing us to detect them.
+ */
+
+ if (udev->manufacturer && udev->product) {
+ if (udev->actconfig->desc.bmAttributes & USB_CONFIG_ATT_WAKEUP) {
+
+ if (!strcmp(udev->manufacturer, "X10 Wireless Technology Inc")
+ && !strcmp(udev->product, "USB Receiver"))
+ return RC_MAP_MEDION_X10_DIGITAINER;
+
+ if (!strcmp(udev->manufacturer, "X10 WTI")
+ && !strcmp(udev->product, "RF receiver"))
+ return RC_MAP_MEDION_X10_OR2X;
+ } else {
+
+ if (!strcmp(udev->manufacturer, "X10 Wireless Technology Inc")
+ && !strcmp(udev->product, "USB Receiver"))
+ return RC_MAP_MEDION_X10;
+ }
+ }
+
+ dev_info(&interface->dev,
+ "Unknown Medion X10 receiver, using default ati_remote Medion keymap\n");
+
+ return RC_MAP_MEDION_X10;
+}
+
+static const struct ati_receiver_type type_ati = {
+ .default_keymap = RC_MAP_ATI_X10
+};
+static const struct ati_receiver_type type_medion = {
+ .get_default_keymap = get_medion_keymap
+};
+static const struct ati_receiver_type type_firefly = {
+ .default_keymap = RC_MAP_SNAPSTREAM_FIREFLY
+};
+
+static const struct usb_device_id ati_remote_table[] = {
+ {
+ USB_DEVICE(ATI_REMOTE_VENDOR_ID, LOLA_REMOTE_PRODUCT_ID),
+ .driver_info = (unsigned long)&type_ati
+ },
+ {
+ USB_DEVICE(ATI_REMOTE_VENDOR_ID, LOLA2_REMOTE_PRODUCT_ID),
+ .driver_info = (unsigned long)&type_ati
+ },
+ {
+ USB_DEVICE(ATI_REMOTE_VENDOR_ID, ATI_REMOTE_PRODUCT_ID),
+ .driver_info = (unsigned long)&type_ati
+ },
+ {
+ USB_DEVICE(ATI_REMOTE_VENDOR_ID, NVIDIA_REMOTE_PRODUCT_ID),
+ .driver_info = (unsigned long)&type_ati
+ },
+ {
+ USB_DEVICE(ATI_REMOTE_VENDOR_ID, MEDION_REMOTE_PRODUCT_ID),
+ .driver_info = (unsigned long)&type_medion
+ },
+ {
+ USB_DEVICE(ATI_REMOTE_VENDOR_ID, FIREFLY_REMOTE_PRODUCT_ID),
+ .driver_info = (unsigned long)&type_firefly
+ },
+ {} /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(usb, ati_remote_table);
+
+/* Get hi and low bytes of a 16-bits int */
+#define HI(a) ((unsigned char)((a) >> 8))
+#define LO(a) ((unsigned char)((a) & 0xff))
+
+#define SEND_FLAG_IN_PROGRESS 1
+#define SEND_FLAG_COMPLETE 2
+
+/* Device initialization strings */
+static char init1[] = { 0x01, 0x00, 0x20, 0x14 };
+static char init2[] = { 0x01, 0x00, 0x20, 0x14, 0x20, 0x20, 0x20 };
+
+struct ati_remote {
+ struct input_dev *idev;
+ struct rc_dev *rdev;
+ struct usb_device *udev;
+ struct usb_interface *interface;
+
+ struct urb *irq_urb;
+ struct urb *out_urb;
+ struct usb_endpoint_descriptor *endpoint_in;
+ struct usb_endpoint_descriptor *endpoint_out;
+ unsigned char *inbuf;
+ unsigned char *outbuf;
+ dma_addr_t inbuf_dma;
+ dma_addr_t outbuf_dma;
+
+ unsigned char old_data; /* Detect duplicate events */
+ unsigned long old_jiffies;
+ unsigned long acc_jiffies; /* handle acceleration */
+ unsigned long first_jiffies;
+
+ unsigned int repeat_count;
+
+ char rc_name[NAME_BUFSIZE];
+ char rc_phys[NAME_BUFSIZE];
+ char mouse_name[NAME_BUFSIZE];
+ char mouse_phys[NAME_BUFSIZE];
+
+ wait_queue_head_t wait;
+ int send_flags;
+
+ int users; /* 0-2, users are rc and input */
+ struct mutex open_mutex;
+};
+
+/* "Kinds" of messages sent from the hardware to the driver. */
+#define KIND_END 0
+#define KIND_LITERAL 1 /* Simply pass to input system as EV_KEY */
+#define KIND_FILTERED 2 /* Add artificial key-up events, drop keyrepeats */
+#define KIND_ACCEL 3 /* Translate to EV_REL mouse-move events */
+
+/* Translation table from hardware messages to input events. */
+static const struct {
+ unsigned char kind;
+ unsigned char data; /* Raw key code from remote */
+ unsigned short code; /* Input layer translation */
+} ati_remote_tbl[] = {
+ /* Directional control pad axes. Code is xxyy */
+ {KIND_ACCEL, 0x70, 0xff00}, /* left */
+ {KIND_ACCEL, 0x71, 0x0100}, /* right */
+ {KIND_ACCEL, 0x72, 0x00ff}, /* up */
+ {KIND_ACCEL, 0x73, 0x0001}, /* down */
+
+ /* Directional control pad diagonals */
+ {KIND_ACCEL, 0x74, 0xffff}, /* left up */
+ {KIND_ACCEL, 0x75, 0x01ff}, /* right up */
+ {KIND_ACCEL, 0x77, 0xff01}, /* left down */
+ {KIND_ACCEL, 0x76, 0x0101}, /* right down */
+
+ /* "Mouse button" buttons. The code below uses the fact that the
+ * lsbit of the raw code is a down/up indicator. */
+ {KIND_LITERAL, 0x78, BTN_LEFT}, /* left btn down */
+ {KIND_LITERAL, 0x79, BTN_LEFT}, /* left btn up */
+ {KIND_LITERAL, 0x7c, BTN_RIGHT},/* right btn down */
+ {KIND_LITERAL, 0x7d, BTN_RIGHT},/* right btn up */
+
+ /* Artificial "doubleclick" events are generated by the hardware.
+ * They are mapped to the "side" and "extra" mouse buttons here. */
+ {KIND_FILTERED, 0x7a, BTN_SIDE}, /* left dblclick */
+ {KIND_FILTERED, 0x7e, BTN_EXTRA},/* right dblclick */
+
+ /* Non-mouse events are handled by rc-core */
+ {KIND_END, 0x00, 0}
+};
+
+/*
+ * ati_remote_dump_input
+ */
+static void ati_remote_dump(struct device *dev, unsigned char *data,
+ unsigned int len)
+{
+ if (len == 1) {
+ if (data[0] != (unsigned char)0xff && data[0] != 0x00)
+ dev_warn(dev, "Weird byte 0x%02x\n", data[0]);
+ } else if (len == 4)
+ dev_warn(dev, "Weird key %*ph\n", 4, data);
+ else
+ dev_warn(dev, "Weird data, len=%d %*ph ...\n", len, 6, data);
+}
+
+/*
+ * ati_remote_open
+ */
+static int ati_remote_open(struct ati_remote *ati_remote)
+{
+ int err = 0;
+
+ mutex_lock(&ati_remote->open_mutex);
+
+ if (ati_remote->users++ != 0)
+ goto out; /* one was already active */
+
+ /* On first open, submit the read urb which was set up previously. */
+ ati_remote->irq_urb->dev = ati_remote->udev;
+ if (usb_submit_urb(ati_remote->irq_urb, GFP_KERNEL)) {
+ dev_err(&ati_remote->interface->dev,
+ "%s: usb_submit_urb failed!\n", __func__);
+ err = -EIO;
+ }
+
+out: mutex_unlock(&ati_remote->open_mutex);
+ return err;
+}
+
+/*
+ * ati_remote_close
+ */
+static void ati_remote_close(struct ati_remote *ati_remote)
+{
+ mutex_lock(&ati_remote->open_mutex);
+ if (--ati_remote->users == 0)
+ usb_kill_urb(ati_remote->irq_urb);
+ mutex_unlock(&ati_remote->open_mutex);
+}
+
+static int ati_remote_input_open(struct input_dev *inputdev)
+{
+ struct ati_remote *ati_remote = input_get_drvdata(inputdev);
+ return ati_remote_open(ati_remote);
+}
+
+static void ati_remote_input_close(struct input_dev *inputdev)
+{
+ struct ati_remote *ati_remote = input_get_drvdata(inputdev);
+ ati_remote_close(ati_remote);
+}
+
+static int ati_remote_rc_open(struct rc_dev *rdev)
+{
+ struct ati_remote *ati_remote = rdev->priv;
+ return ati_remote_open(ati_remote);
+}
+
+static void ati_remote_rc_close(struct rc_dev *rdev)
+{
+ struct ati_remote *ati_remote = rdev->priv;
+ ati_remote_close(ati_remote);
+}
+
+/*
+ * ati_remote_irq_out
+ */
+static void ati_remote_irq_out(struct urb *urb)
+{
+ struct ati_remote *ati_remote = urb->context;
+
+ if (urb->status) {
+ dev_dbg(&ati_remote->interface->dev, "%s: status %d\n",
+ __func__, urb->status);
+ return;
+ }
+
+ ati_remote->send_flags |= SEND_FLAG_COMPLETE;
+ wmb();
+ wake_up(&ati_remote->wait);
+}
+
+/*
+ * ati_remote_sendpacket
+ *
+ * Used to send device initialization strings
+ */
+static int ati_remote_sendpacket(struct ati_remote *ati_remote, u16 cmd,
+ unsigned char *data)
+{
+ int retval = 0;
+
+ /* Set up out_urb */
+ memcpy(ati_remote->out_urb->transfer_buffer + 1, data, LO(cmd));
+ ((char *) ati_remote->out_urb->transfer_buffer)[0] = HI(cmd);
+
+ ati_remote->out_urb->transfer_buffer_length = LO(cmd) + 1;
+ ati_remote->out_urb->dev = ati_remote->udev;
+ ati_remote->send_flags = SEND_FLAG_IN_PROGRESS;
+
+ retval = usb_submit_urb(ati_remote->out_urb, GFP_ATOMIC);
+ if (retval) {
+ dev_dbg(&ati_remote->interface->dev,
+ "sendpacket: usb_submit_urb failed: %d\n", retval);
+ return retval;
+ }
+
+ wait_event_timeout(ati_remote->wait,
+ ((ati_remote->out_urb->status != -EINPROGRESS) ||
+ (ati_remote->send_flags & SEND_FLAG_COMPLETE)),
+ HZ);
+ usb_kill_urb(ati_remote->out_urb);
+
+ return retval;
+}
+
+struct accel_times {
+ const char value;
+ unsigned int msecs;
+};
+
+static const struct accel_times accel[] = {
+ { 1, 125 },
+ { 2, 250 },
+ { 4, 500 },
+ { 6, 1000 },
+ { 9, 1500 },
+ { 13, 2000 },
+ { 20, 0 },
+};
+
+/*
+ * ati_remote_compute_accel
+ *
+ * Implements acceleration curve for directional control pad
+ * If elapsed time since last event is > 1/4 second, user "stopped",
+ * so reset acceleration. Otherwise, user is probably holding the control
+ * pad down, so we increase acceleration, ramping up over two seconds to
+ * a maximum speed.
+ */
+static int ati_remote_compute_accel(struct ati_remote *ati_remote)
+{
+ unsigned long now = jiffies, reset_time;
+ int i;
+
+ reset_time = msecs_to_jiffies(250);
+
+ if (time_after(now, ati_remote->old_jiffies + reset_time)) {
+ ati_remote->acc_jiffies = now;
+ return 1;
+ }
+ for (i = 0; i < ARRAY_SIZE(accel) - 1; i++) {
+ unsigned long timeout = msecs_to_jiffies(accel[i].msecs);
+
+ if (time_before(now, ati_remote->acc_jiffies + timeout))
+ return accel[i].value;
+ }
+ return accel[i].value;
+}
+
+/*
+ * ati_remote_report_input
+ */
+static void ati_remote_input_report(struct urb *urb)
+{
+ struct ati_remote *ati_remote = urb->context;
+ unsigned char *data= ati_remote->inbuf;
+ struct input_dev *dev = ati_remote->idev;
+ int index = -1;
+ int remote_num;
+ unsigned char scancode;
+ u32 wheel_keycode = KEY_RESERVED;
+ int i;
+
+ /*
+ * data[0] = 0x14
+ * data[1] = data[2] + data[3] + 0xd5 (a checksum byte)
+ * data[2] = the key code (with toggle bit in MSB with some models)
+ * data[3] = channel << 4 (the low 4 bits must be zero)
+ */
+
+ /* Deal with strange looking inputs */
+ if ( urb->actual_length != 4 || data[0] != 0x14 ||
+ data[1] != (unsigned char)(data[2] + data[3] + 0xD5) ||
+ (data[3] & 0x0f) != 0x00) {
+ ati_remote_dump(&urb->dev->dev, data, urb->actual_length);
+ return;
+ }
+
+ if (data[1] != ((data[2] + data[3] + 0xd5) & 0xff)) {
+ dbginfo(&ati_remote->interface->dev,
+ "wrong checksum in input: %*ph\n", 4, data);
+ return;
+ }
+
+ /* Mask unwanted remote channels. */
+ /* note: remote_num is 0-based, channel 1 on remote == 0 here */
+ remote_num = (data[3] >> 4) & 0x0f;
+ if (channel_mask & (1 << (remote_num + 1))) {
+ dbginfo(&ati_remote->interface->dev,
+ "Masked input from channel 0x%02x: data %02x, mask= 0x%02lx\n",
+ remote_num, data[2], channel_mask);
+ return;
+ }
+
+ /*
+ * MSB is a toggle code, though only used by some devices
+ * (e.g. SnapStream Firefly)
+ */
+ scancode = data[2] & 0x7f;
+
+ dbginfo(&ati_remote->interface->dev,
+ "channel 0x%02x; key data %02x, scancode %02x\n",
+ remote_num, data[2], scancode);
+
+ if (scancode >= 0x70) {
+ /*
+ * This is either a mouse or scrollwheel event, depending on
+ * the remote/keymap.
+ * Get the keycode assigned to scancode 0x78/0x70. If it is
+ * set, assume this is a scrollwheel up/down event.
+ */
+ wheel_keycode = rc_g_keycode_from_table(ati_remote->rdev,
+ scancode & 0x78);
+
+ if (wheel_keycode == KEY_RESERVED) {
+ /* scrollwheel was not mapped, assume mouse */
+
+ /* Look up event code index in the mouse translation
+ * table.
+ */
+ for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++) {
+ if (scancode == ati_remote_tbl[i].data) {
+ index = i;
+ break;
+ }
+ }
+ }
+ }
+
+ if (index >= 0 && ati_remote_tbl[index].kind == KIND_LITERAL) {
+ /*
+ * The lsbit of the raw key code is a down/up flag.
+ * Invert it to match the input layer's conventions.
+ */
+ input_event(dev, EV_KEY, ati_remote_tbl[index].code,
+ !(data[2] & 1));
+
+ ati_remote->old_jiffies = jiffies;
+
+ } else if (index < 0 || ati_remote_tbl[index].kind == KIND_FILTERED) {
+ unsigned long now = jiffies;
+
+ /* Filter duplicate events which happen "too close" together. */
+ if (ati_remote->old_data == data[2] &&
+ time_before(now, ati_remote->old_jiffies +
+ msecs_to_jiffies(repeat_filter))) {
+ ati_remote->repeat_count++;
+ } else {
+ ati_remote->repeat_count = 0;
+ ati_remote->first_jiffies = now;
+ }
+
+ ati_remote->old_jiffies = now;
+
+ /* Ensure we skip at least the 4 first duplicate events
+ * (generated by a single keypress), and continue skipping
+ * until repeat_delay msecs have passed.
+ */
+ if (ati_remote->repeat_count > 0 &&
+ (ati_remote->repeat_count < 5 ||
+ time_before(now, ati_remote->first_jiffies +
+ msecs_to_jiffies(repeat_delay))))
+ return;
+
+ if (index >= 0) {
+ input_event(dev, EV_KEY, ati_remote_tbl[index].code, 1);
+ input_event(dev, EV_KEY, ati_remote_tbl[index].code, 0);
+ } else {
+ /* Not a mouse event, hand it to rc-core. */
+ int count = 1;
+
+ if (wheel_keycode != KEY_RESERVED) {
+ /*
+ * This is a scrollwheel event, send the
+ * scroll up (0x78) / down (0x70) scancode
+ * repeatedly as many times as indicated by
+ * rest of the scancode.
+ */
+ count = (scancode & 0x07) + 1;
+ scancode &= 0x78;
+ }
+
+ while (count--) {
+ /*
+ * We don't use the rc-core repeat handling yet as
+ * it would cause ghost repeats which would be a
+ * regression for this driver.
+ */
+ rc_keydown_notimeout(ati_remote->rdev,
+ RC_PROTO_OTHER,
+ scancode, data[2]);
+ rc_keyup(ati_remote->rdev);
+ }
+ goto nosync;
+ }
+
+ } else if (ati_remote_tbl[index].kind == KIND_ACCEL) {
+ signed char dx = ati_remote_tbl[index].code >> 8;
+ signed char dy = ati_remote_tbl[index].code & 255;
+
+ /*
+ * Other event kinds are from the directional control pad, and
+ * have an acceleration factor applied to them. Without this
+ * acceleration, the control pad is mostly unusable.
+ */
+ int acc = ati_remote_compute_accel(ati_remote);
+ if (dx)
+ input_report_rel(dev, REL_X, dx * acc);
+ if (dy)
+ input_report_rel(dev, REL_Y, dy * acc);
+ ati_remote->old_jiffies = jiffies;
+
+ } else {
+ dev_dbg(&ati_remote->interface->dev, "ati_remote kind=%d\n",
+ ati_remote_tbl[index].kind);
+ return;
+ }
+ input_sync(dev);
+nosync:
+ ati_remote->old_data = data[2];
+}
+
+/*
+ * ati_remote_irq_in
+ */
+static void ati_remote_irq_in(struct urb *urb)
+{
+ struct ati_remote *ati_remote = urb->context;
+ int retval;
+
+ switch (urb->status) {
+ case 0: /* success */
+ ati_remote_input_report(urb);
+ break;
+ case -ECONNRESET: /* unlink */
+ case -ENOENT:
+ case -ESHUTDOWN:
+ dev_dbg(&ati_remote->interface->dev,
+ "%s: urb error status, unlink?\n",
+ __func__);
+ return;
+ default: /* error */
+ dev_dbg(&ati_remote->interface->dev,
+ "%s: Nonzero urb status %d\n",
+ __func__, urb->status);
+ }
+
+ retval = usb_submit_urb(urb, GFP_ATOMIC);
+ if (retval)
+ dev_err(&ati_remote->interface->dev,
+ "%s: usb_submit_urb()=%d\n",
+ __func__, retval);
+}
+
+/*
+ * ati_remote_alloc_buffers
+ */
+static int ati_remote_alloc_buffers(struct usb_device *udev,
+ struct ati_remote *ati_remote)
+{
+ ati_remote->inbuf = usb_alloc_coherent(udev, DATA_BUFSIZE, GFP_ATOMIC,
+ &ati_remote->inbuf_dma);
+ if (!ati_remote->inbuf)
+ return -1;
+
+ ati_remote->outbuf = usb_alloc_coherent(udev, DATA_BUFSIZE, GFP_ATOMIC,
+ &ati_remote->outbuf_dma);
+ if (!ati_remote->outbuf)
+ return -1;
+
+ ati_remote->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!ati_remote->irq_urb)
+ return -1;
+
+ ati_remote->out_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!ati_remote->out_urb)
+ return -1;
+
+ return 0;
+}
+
+/*
+ * ati_remote_free_buffers
+ */
+static void ati_remote_free_buffers(struct ati_remote *ati_remote)
+{
+ usb_free_urb(ati_remote->irq_urb);
+ usb_free_urb(ati_remote->out_urb);
+
+ usb_free_coherent(ati_remote->udev, DATA_BUFSIZE,
+ ati_remote->inbuf, ati_remote->inbuf_dma);
+
+ usb_free_coherent(ati_remote->udev, DATA_BUFSIZE,
+ ati_remote->outbuf, ati_remote->outbuf_dma);
+}
+
+static void ati_remote_input_init(struct ati_remote *ati_remote)
+{
+ struct input_dev *idev = ati_remote->idev;
+ int i;
+
+ idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+ idev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
+ BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_SIDE) | BIT_MASK(BTN_EXTRA);
+ idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+ for (i = 0; ati_remote_tbl[i].kind != KIND_END; i++)
+ if (ati_remote_tbl[i].kind == KIND_LITERAL ||
+ ati_remote_tbl[i].kind == KIND_FILTERED)
+ __set_bit(ati_remote_tbl[i].code, idev->keybit);
+
+ input_set_drvdata(idev, ati_remote);
+
+ idev->open = ati_remote_input_open;
+ idev->close = ati_remote_input_close;
+
+ idev->name = ati_remote->mouse_name;
+ idev->phys = ati_remote->mouse_phys;
+
+ usb_to_input_id(ati_remote->udev, &idev->id);
+ idev->dev.parent = &ati_remote->interface->dev;
+}
+
+static void ati_remote_rc_init(struct ati_remote *ati_remote)
+{
+ struct rc_dev *rdev = ati_remote->rdev;
+
+ rdev->priv = ati_remote;
+ rdev->allowed_protocols = RC_PROTO_BIT_OTHER;
+ rdev->driver_name = "ati_remote";
+
+ rdev->open = ati_remote_rc_open;
+ rdev->close = ati_remote_rc_close;
+
+ rdev->device_name = ati_remote->rc_name;
+ rdev->input_phys = ati_remote->rc_phys;
+
+ usb_to_input_id(ati_remote->udev, &rdev->input_id);
+ rdev->dev.parent = &ati_remote->interface->dev;
+}
+
+static int ati_remote_initialize(struct ati_remote *ati_remote)
+{
+ struct usb_device *udev = ati_remote->udev;
+ int pipe, maxp;
+
+ init_waitqueue_head(&ati_remote->wait);
+
+ /* Set up irq_urb */
+ pipe = usb_rcvintpipe(udev, ati_remote->endpoint_in->bEndpointAddress);
+ maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
+ maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp;
+
+ usb_fill_int_urb(ati_remote->irq_urb, udev, pipe, ati_remote->inbuf,
+ maxp, ati_remote_irq_in, ati_remote,
+ ati_remote->endpoint_in->bInterval);
+ ati_remote->irq_urb->transfer_dma = ati_remote->inbuf_dma;
+ ati_remote->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ /* Set up out_urb */
+ pipe = usb_sndintpipe(udev, ati_remote->endpoint_out->bEndpointAddress);
+ maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
+ maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp;
+
+ usb_fill_int_urb(ati_remote->out_urb, udev, pipe, ati_remote->outbuf,
+ maxp, ati_remote_irq_out, ati_remote,
+ ati_remote->endpoint_out->bInterval);
+ ati_remote->out_urb->transfer_dma = ati_remote->outbuf_dma;
+ ati_remote->out_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ /* send initialization strings */
+ if ((ati_remote_sendpacket(ati_remote, 0x8004, init1)) ||
+ (ati_remote_sendpacket(ati_remote, 0x8007, init2))) {
+ dev_err(&ati_remote->interface->dev,
+ "Initializing ati_remote hardware failed.\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+/*
+ * ati_remote_probe
+ */
+static int ati_remote_probe(struct usb_interface *interface,
+ const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(interface);
+ struct usb_host_interface *iface_host = interface->cur_altsetting;
+ struct usb_endpoint_descriptor *endpoint_in, *endpoint_out;
+ struct ati_receiver_type *type = (struct ati_receiver_type *)id->driver_info;
+ struct ati_remote *ati_remote;
+ struct input_dev *input_dev;
+ struct rc_dev *rc_dev;
+ int err = -ENOMEM;
+
+ if (iface_host->desc.bNumEndpoints != 2) {
+ err("%s: Unexpected desc.bNumEndpoints\n", __func__);
+ return -ENODEV;
+ }
+
+ endpoint_in = &iface_host->endpoint[0].desc;
+ endpoint_out = &iface_host->endpoint[1].desc;
+
+ if (!usb_endpoint_is_int_in(endpoint_in)) {
+ err("%s: Unexpected endpoint_in\n", __func__);
+ return -ENODEV;
+ }
+ if (le16_to_cpu(endpoint_in->wMaxPacketSize) == 0) {
+ err("%s: endpoint_in message size==0? \n", __func__);
+ return -ENODEV;
+ }
+
+ ati_remote = kzalloc(sizeof (struct ati_remote), GFP_KERNEL);
+ rc_dev = rc_allocate_device(RC_DRIVER_SCANCODE);
+ if (!ati_remote || !rc_dev)
+ goto exit_free_dev_rdev;
+
+ /* Allocate URB buffers, URBs */
+ if (ati_remote_alloc_buffers(udev, ati_remote))
+ goto exit_free_buffers;
+
+ ati_remote->endpoint_in = endpoint_in;
+ ati_remote->endpoint_out = endpoint_out;
+ ati_remote->udev = udev;
+ ati_remote->rdev = rc_dev;
+ ati_remote->interface = interface;
+
+ usb_make_path(udev, ati_remote->rc_phys, sizeof(ati_remote->rc_phys));
+ strlcpy(ati_remote->mouse_phys, ati_remote->rc_phys,
+ sizeof(ati_remote->mouse_phys));
+
+ strlcat(ati_remote->rc_phys, "/input0", sizeof(ati_remote->rc_phys));
+ strlcat(ati_remote->mouse_phys, "/input1", sizeof(ati_remote->mouse_phys));
+
+ snprintf(ati_remote->rc_name, sizeof(ati_remote->rc_name), "%s%s%s",
+ udev->manufacturer ?: "",
+ udev->manufacturer && udev->product ? " " : "",
+ udev->product ?: "");
+
+ if (!strlen(ati_remote->rc_name))
+ snprintf(ati_remote->rc_name, sizeof(ati_remote->rc_name),
+ DRIVER_DESC "(%04x,%04x)",
+ le16_to_cpu(ati_remote->udev->descriptor.idVendor),
+ le16_to_cpu(ati_remote->udev->descriptor.idProduct));
+
+ snprintf(ati_remote->mouse_name, sizeof(ati_remote->mouse_name),
+ "%s mouse", ati_remote->rc_name);
+
+ rc_dev->map_name = RC_MAP_ATI_X10; /* default map */
+
+ /* set default keymap according to receiver model */
+ if (type) {
+ if (type->default_keymap)
+ rc_dev->map_name = type->default_keymap;
+ else if (type->get_default_keymap)
+ rc_dev->map_name = type->get_default_keymap(interface);
+ }
+
+ ati_remote_rc_init(ati_remote);
+ mutex_init(&ati_remote->open_mutex);
+
+ /* Device Hardware Initialization - fills in ati_remote->idev from udev. */
+ err = ati_remote_initialize(ati_remote);
+ if (err)
+ goto exit_kill_urbs;
+
+ /* Set up and register rc device */
+ err = rc_register_device(ati_remote->rdev);
+ if (err)
+ goto exit_kill_urbs;
+
+ /* Set up and register mouse input device */
+ if (mouse) {
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ err = -ENOMEM;
+ goto exit_unregister_device;
+ }
+
+ ati_remote->idev = input_dev;
+ ati_remote_input_init(ati_remote);
+ err = input_register_device(input_dev);
+
+ if (err)
+ goto exit_free_input_device;
+ }
+
+ usb_set_intfdata(interface, ati_remote);
+ return 0;
+
+ exit_free_input_device:
+ input_free_device(input_dev);
+ exit_unregister_device:
+ rc_unregister_device(rc_dev);
+ rc_dev = NULL;
+ exit_kill_urbs:
+ usb_kill_urb(ati_remote->irq_urb);
+ usb_kill_urb(ati_remote->out_urb);
+ exit_free_buffers:
+ ati_remote_free_buffers(ati_remote);
+ exit_free_dev_rdev:
+ rc_free_device(rc_dev);
+ kfree(ati_remote);
+ return err;
+}
+
+/*
+ * ati_remote_disconnect
+ */
+static void ati_remote_disconnect(struct usb_interface *interface)
+{
+ struct ati_remote *ati_remote;
+
+ ati_remote = usb_get_intfdata(interface);
+ usb_set_intfdata(interface, NULL);
+ if (!ati_remote) {
+ dev_warn(&interface->dev, "%s - null device?\n", __func__);
+ return;
+ }
+
+ usb_kill_urb(ati_remote->irq_urb);
+ usb_kill_urb(ati_remote->out_urb);
+ if (ati_remote->idev)
+ input_unregister_device(ati_remote->idev);
+ rc_unregister_device(ati_remote->rdev);
+ ati_remote_free_buffers(ati_remote);
+ kfree(ati_remote);
+}
+
+/* usb specific object to register with the usb subsystem */
+static struct usb_driver ati_remote_driver = {
+ .name = "ati_remote",
+ .probe = ati_remote_probe,
+ .disconnect = ati_remote_disconnect,
+ .id_table = ati_remote_table,
+};
+
+module_usb_driver(ati_remote_driver);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");