// SPDX-License-Identifier: GPL-2.0-only
/*
* ati_remote2 - ATI/Philips USB RF remote driver
*
* Copyright (C) 2005-2008 Ville Syrjala <[email protected]>
* Copyright (C) 2007-2008 Peter Stokes <[email protected]>
*/
#include <linux/usb/input.h>
#include <linux/slab.h>
#include <linux/module.h>
#define DRIVER_DESC "ATI/Philips USB RF remote driver"
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_AUTHOR("Ville Syrjala <[email protected]>");
MODULE_LICENSE("GPL");
/*
* ATI Remote Wonder II Channel Configuration
*
* The remote control can be assigned one of sixteen "channels" in order to facilitate
* the use of multiple remote controls within range of each other.
* A remote's "channel" may be altered by pressing and holding the "PC" button for
* approximately 3 seconds, after which the button will slowly flash the count of the
* currently configured "channel", using the numeric keypad enter a number between 1 and
* 16 and then press the "PC" button again, the button will slowly flash the count of the
* newly configured "channel".
*/
enum {
ATI_REMOTE2_MAX_CHANNEL_MASK = 0xFFFF,
ATI_REMOTE2_MAX_MODE_MASK = 0x1F,
};
static int ati_remote2_set_mask(const char *val,
const struct kernel_param *kp,
unsigned int max)
{
unsigned int mask;
int ret;
if (!val)
return -EINVAL;
ret = kstrtouint(val, 0, &mask);
if (ret)
return ret;
if (mask & ~max)
return -EINVAL;
*(unsigned int *)kp->arg = mask;
return 0;
}
static int ati_remote2_set_channel_mask(const char *val,
const struct kernel_param *kp)
{
pr_debug("%s()\n", __func__);
return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_CHANNEL_MASK);
}
static int ati_remote2_get_channel_mask(char *buffer,
const struct kernel_param *kp)
{
pr_debug("%s()\n", __func__);
return sprintf(buffer, "0x%04x\n", *(unsigned int *)kp->arg);
}
static int ati_remote2_set_mode_mask(const char *val,
const struct kernel_param *kp)
{
pr_debug("%s()\n", __func__);
return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_MODE_MASK);
}
static int ati_remote2_get_mode_mask(char *buffer,
const struct kernel_param *kp)
{
pr_debug("%s()\n", __func__);
return sprintf(buffer, "0x%02x\n", *(unsigned int *)kp->arg);
}
static unsigned int channel_mask = ATI_REMOTE2_MAX_CHANNEL_MASK;
#define param_check_channel_mask(name, p) __param_check(name, p, unsigned int)
static const struct kernel_param_ops param_ops_channel_mask = {
.set = ati_remote2_set_channel_mask,
.get = ati_remote2_get_channel_mask,
};
module_param(channel_mask, channel_mask, 0644);
MODULE_PARM_DESC(channel_mask, "Bitmask of channels to accept <15:Channel16>...<1:Channel2><0:Channel1>");
static unsigned int mode_mask = ATI_REMOTE2_MAX_MODE_MASK;
#define param_check_mode_mask(name, p) __param_check(name, p, unsigned int)
static const struct kernel_param_ops param_ops_mode_mask = {
.set = ati_remote2_set_mode_mask,
.get = ati_remote2_get_mode_mask,
};
module_param(mode_mask, mode_mask, 0644);
MODULE_PARM_DESC(mode_mask, "Bitmask of modes to accept <4:PC><3:AUX4><2:AUX3><1:AUX2><0:AUX1>");
static const struct usb_device_id ati_remote2_id_table[] = {
{ USB_DEVICE(0x0471, 0x0602) }, /* ATI Remote Wonder II */
{ }
};
MODULE_DEVICE_TABLE(usb, ati_remote2_id_table);
static DEFINE_MUTEX(ati_remote2_mutex);
enum {
ATI_REMOTE2_OPENED = 0x1,
ATI_REMOTE2_SUSPENDED = 0x2,
};
enum {
ATI_REMOTE2_AUX1,
ATI_REMOTE2_AUX2,
ATI_REMOTE2_AUX3,
ATI_REMOTE2_AUX4,
ATI_REMOTE2_PC,
ATI_REMOTE2_MODES,
};
static const struct {
u8 hw_code;
u16 keycode;
} ati_remote2_key_table[] = {
{ 0x00, KEY_0 },
{ 0x01, KEY_1 },
{ 0x02, KEY_2 },
{ 0x03, KEY_3 },
{ 0x04, KEY_4 },
{ 0x05, KEY_5 },
{ 0x06, KEY_6 },
{ 0x07, KEY_7 },
{ 0x08, KEY_8 },
{ 0x09, KEY_9 },
{ 0x0c, KEY_POWER },
{ 0x0d, KEY_MUTE },
{ 0x10, KEY_VOLUMEUP },
{ 0x11, KEY_VOLUMEDOWN },
{ 0x20, KEY_CHANNELUP },
{ 0x21, KEY_CHANNELDOWN },
{ 0x28, KEY_FORWARD },
{ 0x29, KEY_REWIND },
{ 0x2c, KEY_PLAY },
{ 0x30, KEY_PAUSE },
{ 0x31, KEY_STOP },
{ 0x37, KEY_RECORD },
{ 0x38, KEY_DVD },
{ 0x39, KEY_TV },
{ 0x3f, KEY_PROG1 }, /* AUX1-AUX4 and PC */
{ 0x54, KEY_MENU },
{ 0x58, KEY_UP },
{ 0x59, KEY_DOWN },
{ 0x5a, KEY_LEFT },
{ 0x5b, KEY_RIGHT },
{ 0x5c, KEY_OK },
{ 0x78, KEY_A },
{ 0x79, KEY_B },
{ 0x7a, KEY_C },
{ 0x7b, KEY_D },
{ 0x7c, KEY_E },
{ 0x7d, KEY_F },
{ 0x82, KEY_ENTER },
{ 0x8e, KEY_VENDOR },
{ 0x96, KEY_COFFEE },
{ 0xa9, BTN_LEFT },
{ 0xaa, BTN_RIGHT },
{ 0xbe, KEY_QUESTION },
{ 0xd0, KEY_EDIT },
{ 0xd5, KEY_FRONT },
{ 0xf9, KEY_INFO },
};
struct ati_remote2 {
struct input_dev *idev;
struct usb_device *udev;
struct usb_interface *intf[2];
struct usb_endpoint_descriptor *ep[2];
struct urb *urb[2];
void *buf[2];
dma_addr_t buf_dma[2];
unsigned long jiffies;
int mode;
char name[64];
char phys[64];
/* Each mode (AUX1-AUX4 and PC) can have an independent keymap. */
u16 keycode[ATI_REMOTE2_MODES][ARRAY_SIZE(ati_remote2_key_table)];
unsigned int flags;
unsigned int channel_mask;
unsigned int mode_mask;
};
static struct usb_driver ati_remote2_driver;
static int ati_remote2_submit_urbs(struct ati_remote2 *ar2)
{
int r;
r = usb_submit_urb(ar2->urb[0], GFP_KERNEL);
if (r) {
dev_err(&ar2->intf[0]->dev,
"%s(): usb_submit_urb() = %d\n", __func__, r);
return r;
}
r = usb_submit_urb(ar2->urb[1], GFP_KERNEL);
if (r) {
usb_kill_urb(ar2->urb[0]);
dev_err(&ar2->intf[1]->dev,
"%s(): usb_submit_urb() = %d\n", __func__, r);
return r;
}
return 0;
}
static void ati_remote2_kill_urbs(struct ati_remote2 *ar2)
{
usb_kill_urb(ar2->urb[1]);
usb_kill_urb(ar2->urb[0]);
}
static int ati_remote2_open(struct input_dev *idev)
{
struct ati_remote2 *ar2 = input_get_drvdata(idev);
int r;
dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
r = usb_autopm_get_interface(ar2->intf[0]);
if (r) {
dev_err(&ar2->intf[0]->dev,
"%s(): usb_autopm_get_interface() = %d\n", __func__, r);
goto fail1;
}
mutex_lock(&ati_remote2_mutex);
if (!(ar2->flags & ATI_REMOTE2_SUSPENDED)) {
r = ati_remote2_submit_urbs(ar2);
if (r)
goto fail2;
}
ar2->flags |= ATI_REMOTE2_OPENED;
mutex_unlock(&ati_remote2_mutex);
usb_autopm_put_interface(ar2->intf[0]);
return 0;
fail2:
mutex_unlock(&ati_remote2_mutex);
usb_autopm_put_interface(ar2->intf[0]);
fail1:
return r;
}
static void ati_remote2_close(struct input_dev *idev)
{
struct ati_remote2 *ar2 = input_get_drvdata(idev);
dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
mutex_lock(&ati_remote2_mutex);
if (!(ar2->flags & ATI_REMOTE2_SUSPENDED))
ati_remote2_kill_urbs(ar2);
ar2->flags &= ~ATI_REMOTE2_OPENED;
mutex_unlock(&ati_remote2_mutex);
}
static void ati_remote2_input_mouse(struct ati_remote2 *ar2)
{
struct input_dev *idev = ar2->idev;
u8 *data = ar2->buf[0];
int channel, mode;
channel = data[0] >> 4;
if (!((1 << channel) & ar2->channel_mask))
return;
mode = data[0] & 0x0F;
if (mode > ATI_REMOTE2_PC) {
dev_err(&ar2->intf[0]->dev,
"Unknown mode byte (%02x %02x %02x %02x)\n",
data[3], data[2], data[1], data[0]);
return;
}
if (!((1 << mode) & ar2->mode_mask))
return;
input_event(idev, EV_REL, REL_X, (s8) data[1]);
input_event(idev, EV_REL, REL_Y, (s8) data[2]);
input_sync(idev);
}
static int ati_remote2_lookup(unsigned int hw_code)
{
int i;
for (i = 0; i < ARRAY_SIZE(ati_remote2_key_table); i++)
if (ati_remote2_key_table[i].hw_code == hw_code)
return i;
return -1;
}
static void ati_remote2_input_key(struct ati_remote2 *ar2)
{
struct input_dev *idev = ar2->idev;
u8 *data = ar2->buf[1];
int channel, mode, hw_code, index;
channel = data[0] >> 4;
if (!((1 << channel) & ar2->channel_mask))
return;
mode = data[0] & 0x0F;
if (mode > ATI_REMOTE2_PC) {
dev_err(&ar2->intf[1]->dev,
"Unknown mode byte (%02x %02x %02x %02x)\n",
data[3], data[2], data[1], data[0]);
return;
}
hw_code = data[2];
if (hw_code == 0x3f) {
/*
* For some incomprehensible reason the mouse pad generates
* events which look identical to the events from the last
* pressed mode key. Naturally we don't want to generate key
* events for the mouse pad so we filter out any subsequent
* events from the same mode key.
*/
if (ar2->mode == mode)
return;
if (data[1] == 0)
ar2->mode = mode;
}
if (!((1 << mode) & ar2->mode_mask))
return;
index = ati_remote2_lookup(hw_code);
if (index < 0) {
dev_err(&ar2->intf[1]->dev,
"Unknown code byte (%02x %02x %02x %02x)\n",
data[3], data[2], data[1], data[0]);
return;
}
switch (data[1]) {
case 0: /* release */
break;
case 1: /* press */
ar2->jiffies = jiffies + msecs_to_jiffies(idev->rep[REP_DELAY]);
break;
case 2: /* repeat */
/* No repeat for mouse buttons. */
if (ar2->keycode[mode][index] == BTN_LEFT ||
ar2->keycode[mode][index] == BTN_RIGHT)
return;
if (!time_after_eq(jiffies, ar2->jiffies))
return;
ar2->jiffies = jiffies + msecs_to_jiffies(idev->rep[REP_PERIOD]);
break;
default:
dev_err(&ar2->intf[1]->dev,
"Unknown state byte (%02x %02x %02x %02x)\n",
data[3], data[2], data[1], data[0]);
return;
}
input_event(idev, EV_KEY, ar2->keycode[mode][index], data[1]);
input_sync(idev);
}
static void ati_remote2_complete_mouse(struct urb *urb)
{
struct ati_remote2 *ar2 = urb->context;
int r;
switch (urb->status) {
case 0:
usb_mark_last_busy(ar2->udev);
ati_remote2_input_mouse(ar2);
break;
case -ENOENT:
case -EILSEQ:
case -ECONNRESET:
case -ESHUTDOWN:
dev_dbg(&ar2->intf[0]->dev,
"%s(): urb status = %d\n", __func__, urb->status);
return;
default:
usb_mark_last_busy(ar2->udev);
dev_err(&ar2->intf[0]->dev,
"%s(): urb status = %d\n", __func__, urb->status);
}
r = usb_submit_urb(urb, GFP_ATOMIC);
if (r)
dev_err(&ar2->intf[0]->dev,
"%s(): usb_submit_urb() = %d\n", __func__, r);
}
static void ati_remote2_complete_key(struct urb *urb)
{
struct ati_remote2 *ar2 = urb->context;
int r;
switch (urb->status) {
case 0:
usb_mark_last_busy(ar2->udev);
ati_remote2_input_key(ar2);
break;
case -ENOENT:
case -EILSEQ:
case -ECONNRESET:
case -ESHUTDOWN:
dev_dbg(&ar2->intf[1]->dev,
"%s(): urb status = %d\n", __func__, urb->status);
return;
default:
usb_mark_last_busy(ar2->udev);
dev_err(&ar2->intf[1]->dev,
"%s(): urb status = %d\n", __func__, urb->status);
}
r = usb_submit_urb(urb, GFP_ATOMIC);
if (r)
dev_err(&ar2->intf[1]->dev,
"%s(): usb_submit_urb() = %d\n", __func__, r);
}
static int ati_remote2_getkeycode(struct input_dev *idev,
struct input_keymap_entry *ke)
{
struct ati_remote2 *ar2 = input_get_drvdata(idev);
unsigned int mode;
int offset;
unsigned int index;
unsigned int scancode;
if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
index = ke->index;
if (index >= ATI_REMOTE2_MODES *
ARRAY_SIZE(ati_remote2_key_table))
return -EINVAL;
mode = ke->index / ARRAY_SIZE(ati_remote2_key_table);
offset = ke->index % ARRAY_SIZE(ati_remote2_key_table);
scancode = (mode << 8) + ati_remote2_key_table[offset].hw_code;
} else {
if (input_scancode_to_scalar(ke, &scancode))
return -EINVAL;
mode = scancode >> 8;
if (mode > ATI_REMOTE2_PC)
return -EINVAL;
offset = ati_remote2_lookup(scancode & 0xff);
if (offset < 0)
return -EINVAL;
index = mode * ARRAY_SIZE(ati_remote2_key_table) + offset;
}
ke->keycode = ar2->keycode[mode][offset];
ke->len = sizeof(scancode);
memcpy(&ke->scancode, &scancode, sizeof(scancode));
ke->index = index;
return 0;
}
static int ati_remote2_setkeycode(struct input_dev *idev,
const struct input_keymap_entry *ke,
unsigned int *old_keycode)
{
struct ati_remote2 *ar2 = input_get_drvdata(idev);
unsigned int mode;
int offset;
unsigned int index;
unsigned int scancode;
if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
if (ke->index >= ATI_REMOTE2_MODES *
ARRAY_SIZE(ati_remote2_key_table))
return -EINVAL;
mode = ke->index / ARRAY_SIZE(ati_remote2_key_table);
offset = ke->index % ARRAY_SIZE(ati_remote2_key_table);
} else {
if (input_scancode_to_scalar(ke, &scancode))
return -EINVAL;
mode = scancode >> 8;
if (mode > ATI_REMOTE2_PC)
return -EINVAL;
offset = ati_remote2_lookup(scancode & 0xff);
if (offset < 0)
return -EINVAL;
}
*old_keycode = ar2->keycode[mode][offset];
ar2->keycode[mode][offset] = ke->keycode;
__set_bit(ke->keycode, idev->keybit);
for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) {
for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) {
if (ar2->keycode[mode][index] == *old_keycode)
return 0;
}
}
__clear_bit(*old_keycode, idev->keybit);
return 0;
}
static int ati_remote2_input_init(struct ati_remote2 *ar2)
{
struct input_dev *idev;
int index, mode, retval;
idev = input_allocate_device();
if (!idev)
return -ENOMEM;
ar2->idev = idev;
input_set_drvdata(idev, ar2);
idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | BIT_MASK(EV_REL);
idev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
BIT_MASK(BTN_RIGHT);
idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) {
for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) {
ar2->keycode[mode][index] = ati_remote2_key_table[index].keycode;
__set_bit(ar2->keycode[mode][index], idev->keybit);
}
}
/* AUX1-AUX4 and PC generate the same scancode. */
index = ati_remote2_lookup(0x3f);
ar2->keycode[ATI_REMOTE2_AUX1][index] = KEY_PROG1;
ar2->keycode[ATI_REMOTE2_AUX2][index] = KEY_PROG2;
ar2->keycode[ATI_REMOTE2_AUX3][index] = KEY_PROG3;
ar2->keycode[ATI_REMOTE2_AUX4][index] = KEY_PROG4;
ar2->keycode[ATI_REMOTE2_PC][index] = KEY_PC;
__set_bit(KEY_PROG1, idev->keybit);
__set_bit(KEY_PROG2, idev->keybit);
__set_bit(KEY_PROG3, idev->keybit);
__set_bit(KEY_PROG4, idev->keybit);
__set_bit(KEY_PC, idev->keybit);
idev->rep[REP_DELAY] = 250;
idev->rep[REP_PERIOD] = 33;
idev->open = ati_remote2_open;
idev->close = ati_remote2_close;
idev->getkeycode = ati_remote2_getkeycode;
idev->setkeycode = ati_remote2_setkeycode;
idev->name = ar2->name;
idev->phys = ar2->phys;
usb_to_input_id(ar2->udev, &idev->id);
idev->dev.parent = &ar2->udev->dev;
retval = input_register_device(idev);
if (retval)
input_free_device(idev);
return retval;
}
static int ati_remote2_urb_init(struct ati_remote2 *ar2)
{
struct usb_device *udev = ar2->udev;
int i, pipe, maxp;
for (i = 0; i < 2; i++) {
ar2->buf[i] = usb_alloc_coherent(udev, 4, GFP_KERNEL, &ar2->buf_dma[i]);
if (!ar2->buf[i])
return -ENOMEM;
ar2->urb[i] = usb_alloc_urb(0, GFP_KERNEL);
if (!ar2->urb[i])
return -ENOMEM;
pipe = usb_rcvintpipe(udev, ar2->ep[i]->bEndpointAddress);
maxp = usb_maxpacket(udev, pipe);
maxp = maxp > 4 ? 4 : maxp;
usb_fill_int_urb(ar2->urb[i], udev, pipe, ar2->buf[i], maxp,
i ? ati_remote2_complete_key : ati_remote2_complete_mouse,
ar2, ar2->ep[i]->bInterval);
ar2->urb[i]->transfer_dma = ar2->buf_dma[i];
ar2->urb[i]->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
}
return 0;
}
static void ati_remote2_urb_cleanup(struct ati_remote2 *ar2)
{
int i;
for (i = 0; i < 2; i++) {
usb_free_urb(ar2->urb[i]);
usb_free_coherent(ar2->udev, 4, ar2->buf[i], ar2->buf_dma[i]);
}
}
static int ati_remote2_setup(struct ati_remote2 *ar2, unsigned int ch_mask)
{
int r, i, channel;
/*
* Configure receiver to only accept input from remote "channel"
* channel == 0 -> Accept input from any remote channel
* channel == 1 -> Only accept input from remote channel 1
* channel == 2 -> Only accept input from remote channel 2
* ...
* channel == 16 -> Only accept input from remote channel 16
*/
channel = 0;
for (i = 0; i < 16; i++) {
if ((1 << i) & ch_mask) {
if (!(~(1 << i) & ch_mask))
channel = i + 1;
break;
}
}
r = usb_control_msg(ar2->udev, usb_sndctrlpipe(ar2->udev, 0),
0x20,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
channel, 0x0, NULL, 0, USB_CTRL_SET_TIMEOUT);
if (r) {
dev_err(&ar2->udev->dev, "%s - failed to set channel due to error: %d\n",
__func__, r);
return r;
}
return 0;
}
static ssize_t ati_remote2_show_channel_mask(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct usb_device *udev = to_usb_device(dev);
struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
struct ati_remote2 *ar2 = usb_get_intfdata(intf);
return sprintf(buf, "0x%04x\n", ar2->channel_mask);
}
static ssize_t ati_remote2_store_channel_mask(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct usb_device *udev = to_usb_device(dev);
struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
struct ati_remote2 *ar2 = usb_get_intfdata(intf);
unsigned int mask;
int r;
r = kstrtouint(buf, 0, &mask);
if (r)
return r;
if (mask & ~ATI_REMOTE2_MAX_CHANNEL_MASK)
return -EINVAL;
r = usb_autopm_get_interface(ar2->intf[0]);
if (r) {
dev_err(&ar2->intf[0]->dev,
"%s(): usb_autopm_get_interface() = %d\n", __func__, r);
return r;
}
mutex_lock(&ati_remote2_mutex);
if (mask != ar2->channel_mask) {
r = ati_remote2_setup(ar2, mask);
if (!r)
ar2->channel_mask = mask;
}
mutex_unlock(&ati_remote2_mutex);
usb_autopm_put_interface(ar2->intf[0]);
return r ? r : count;
}
static ssize_t ati_remote2_show_mode_mask(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct usb_device *udev = to_usb_device(dev);
struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
struct ati_remote2 *ar2 = usb_get_intfdata(intf);
return sprintf(buf, "0x%02x\n", ar2->mode_mask);
}
static ssize_t ati_remote2_store_mode_mask(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct usb_device *udev = to_usb_device(dev);
struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
struct ati_remote2 *ar2 = usb_get_intfdata(intf);
unsigned int mask;
int err;
err = kstrtouint(buf, 0, &mask);
if (err)
return err;
if (mask & ~ATI_REMOTE2_MAX_MODE_MASK)
return -EINVAL;
ar2->mode_mask = mask;
return count;
}
static DEVICE_ATTR(channel_mask, 0644, ati_remote2_show_channel_mask,
ati_remote2_store_channel_mask);
static DEVICE_ATTR(mode_mask, 0644, ati_remote2_show_mode_mask,
ati_remote2_store_mode_mask);
static struct attribute *ati_remote2_attrs[] = {
&dev_attr_channel_mask.attr,
&dev_attr_mode_mask.attr,
NULL,
};
ATTRIBUTE_GROUPS(ati_remote2);
static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id)
{
struct usb_device *udev = interface_to_usbdev(interface);
struct usb_host_interface *alt = interface->cur_altsetting;
struct ati_remote2 *ar2;
int r;
if (alt->desc.bInterfaceNumber)
return -ENODEV;
ar2 = kzalloc(sizeof (struct ati_remote2), GFP_KERNEL);
if (!ar2)
return -ENOMEM;
ar2->udev = udev;
/* Sanity check, first interface must have an endpoint */
if (alt->desc.bNumEndpoints < 1 || !alt->endpoint) {
dev_err(&interface->dev,
"%s(): interface 0 must have an endpoint\n", __func__);
r = -ENODEV;
goto fail1;
}
ar2->intf[0] = interface;
ar2->ep[0] = &alt->endpoint[0].desc;
/* Sanity check, the device must have two interfaces */
ar2->intf[1] = usb_ifnum_to_if(udev, 1);
if ((udev->actconfig->desc.bNumInterfaces < 2) || !ar2->intf[1]) {
dev_err(&interface->dev, "%s(): need 2 interfaces, found %d\n",
__func__, udev->actconfig->desc.bNumInterfaces);
r = -ENODEV;
goto fail1;
}
r = usb_driver_claim_interface(&ati_remote2_driver, ar2->intf[1], ar2);
if (r)
goto fail1;
/* Sanity check, second interface must have an endpoint */
alt = ar2->intf[1]->cur_altsetting;
if (alt->desc.bNumEndpoints < 1 || !alt->endpoint) {
dev_err(&interface->dev,
"%s(): interface 1 must have an endpoint\n", __func__);
r = -ENODEV;
goto fail2;
}
ar2->ep[1] = &alt->endpoint[0].desc;
r = ati_remote2_urb_init(ar2);
if (r)
goto fail3;
ar2->channel_mask = channel_mask;
ar2->mode_mask = mode_mask;
r = ati_remote2_setup(ar2, ar2->channel_mask);
if (r)
goto fail3;
usb_make_path(udev, ar2->phys, sizeof(ar2->phys));
strlcat(ar2->phys, "/input0", sizeof(ar2->phys));
strlcat(ar2->name, "ATI Remote Wonder II", sizeof(ar2->name));
r = ati_remote2_input_init(ar2);
if (r)
goto fail3;
usb_set_intfdata(interface, ar2);
interface->needs_remote_wakeup = 1;
return 0;
fail3:
ati_remote2_urb_cleanup(ar2);
fail2:
usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
fail1:
kfree(ar2);
return r;
}
static void ati_remote2_disconnect(struct usb_interface *interface)
{
struct ati_remote2 *ar2;
struct usb_host_interface *alt = interface->cur_altsetting;
if (alt->desc.bInterfaceNumber)
return;
ar2 = usb_get_intfdata(interface);
usb_set_intfdata(interface, NULL);
input_unregister_device(ar2->idev);
ati_remote2_urb_cleanup(ar2);
usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
kfree(ar2);
}
static int ati_remote2_suspend(struct usb_interface *interface,
pm_message_t message)
{
struct ati_remote2 *ar2;
struct usb_host_interface *alt = interface->cur_altsetting;
if (alt->desc.bInterfaceNumber)
return 0;
ar2 = usb_get_intfdata(interface);
dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
mutex_lock(&ati_remote2_mutex);
if (ar2->flags & ATI_REMOTE2_OPENED)
ati_remote2_kill_urbs(ar2);
ar2->flags |= ATI_REMOTE2_SUSPENDED;
mutex_unlock(&ati_remote2_mutex);
return 0;
}
static int ati_remote2_resume(struct usb_interface *interface)
{
struct ati_remote2 *ar2;
struct usb_host_interface *alt = interface->cur_altsetting;
int r = 0;
if (alt->desc.bInterfaceNumber)
return 0;
ar2 = usb_get_intfdata(interface);
dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
mutex_lock(&ati_remote2_mutex);
if (ar2->flags & ATI_REMOTE2_OPENED)
r = ati_remote2_submit_urbs(ar2);
if (!r)
ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
mutex_unlock(&ati_remote2_mutex);
return r;
}
static int ati_remote2_reset_resume(struct usb_interface *interface)
{
struct ati_remote2 *ar2;
struct usb_host_interface *alt = interface->cur_altsetting;
int r = 0;
if (alt->desc.bInterfaceNumber)
return 0;
ar2 = usb_get_intfdata(interface);
dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
mutex_lock(&ati_remote2_mutex);
r = ati_remote2_setup(ar2, ar2->channel_mask);
if (r)
goto out;
if (ar2->flags & ATI_REMOTE2_OPENED)
r = ati_remote2_submit_urbs(ar2);
if (!r)
ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
out:
mutex_unlock(&ati_remote2_mutex);
return r;
}
static int ati_remote2_pre_reset(struct usb_interface *interface)
{
struct ati_remote2 *ar2;
struct usb_host_interface *alt = interface->cur_altsetting;
if (alt->desc.bInterfaceNumber)
return 0;
ar2 = usb_get_intfdata(interface);
dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
mutex_lock(&ati_remote2_mutex);
if (ar2->flags == ATI_REMOTE2_OPENED)
ati_remote2_kill_urbs(ar2);
return 0;
}
static int ati_remote2_post_reset(struct usb_interface *interface)
{
struct ati_remote2 *ar2;
struct usb_host_interface *alt = interface->cur_altsetting;
int r = 0;
if (alt->desc.bInterfaceNumber)
return 0;
ar2 = usb_get_intfdata(interface);
dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
if (ar2->flags == ATI_REMOTE2_OPENED)
r = ati_remote2_submit_urbs(ar2);
mutex_unlock(&ati_remote2_mutex);
return r;
}
static struct usb_driver ati_remote2_driver = {
.name = "ati_remote2",
.probe = ati_remote2_probe,
.disconnect = ati_remote2_disconnect,
.dev_groups = ati_remote2_groups,
.id_table = ati_remote2_id_table,
.suspend = ati_remote2_suspend,
.resume = ati_remote2_resume,
.reset_resume = ati_remote2_reset_resume,
.pre_reset = ati_remote2_pre_reset,
.post_reset = ati_remote2_post_reset,
.supports_autosuspend = 1,
};
module_usb_driver(ati_remote2_driver);
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