1 // SPDX-License-Identifier: GPL-2.0-only
3 * ati_remote2 - ATI/Philips USB RF remote driver
9 #include <linux/usb/input.h>
10 #include <linux/slab.h>
11 #include <linux/module.h>
13 #define DRIVER_DESC "ATI/Philips USB RF remote driver"
15 MODULE_DESCRIPTION(DRIVER_DESC);
17 MODULE_LICENSE("GPL");
20 * ATI Remote Wonder II Channel Configuration
22 * The remote control can be assigned one of sixteen "channels" in order to facilitate
23 * the use of multiple remote controls within range of each other.
24 * A remote's "channel" may be altered by pressing and holding the "PC" button for
25 * approximately 3 seconds, after which the button will slowly flash the count of the
26 * currently configured "channel", using the numeric keypad enter a number between 1 and
27 * 16 and then press the "PC" button again, the button will slowly flash the count of the
28 * newly configured "channel".
32 ATI_REMOTE2_MAX_CHANNEL_MASK = 0xFFFF,
33 ATI_REMOTE2_MAX_MODE_MASK = 0x1F,
36 static int ati_remote2_set_mask(const char *val,
37 const struct kernel_param *kp,
46 ret = kstrtouint(val, 0, &mask);
53 *(unsigned int *)kp->arg = mask;
58 static int ati_remote2_set_channel_mask(const char *val,
59 const struct kernel_param *kp)
61 pr_debug("%s()\n", __func__);
63 return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_CHANNEL_MASK);
66 static int ati_remote2_get_channel_mask(char *buffer,
67 const struct kernel_param *kp)
69 pr_debug("%s()\n", __func__);
71 return sprintf(buffer, "0x%04x\n", *(unsigned int *)kp->arg);
74 static int ati_remote2_set_mode_mask(const char *val,
75 const struct kernel_param *kp)
77 pr_debug("%s()\n", __func__);
79 return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_MODE_MASK);
82 static int ati_remote2_get_mode_mask(char *buffer,
83 const struct kernel_param *kp)
85 pr_debug("%s()\n", __func__);
87 return sprintf(buffer, "0x%02x\n", *(unsigned int *)kp->arg);
90 static unsigned int channel_mask = ATI_REMOTE2_MAX_CHANNEL_MASK;
91 #define param_check_channel_mask(name, p) __param_check(name, p, unsigned int)
92 static const struct kernel_param_ops param_ops_channel_mask = {
93 .set = ati_remote2_set_channel_mask,
94 .get = ati_remote2_get_channel_mask,
96 module_param(channel_mask, channel_mask, 0644);
97 MODULE_PARM_DESC(channel_mask, "Bitmask of channels to accept <15:Channel16>...<1:Channel2><0:Channel1>");
99 static unsigned int mode_mask = ATI_REMOTE2_MAX_MODE_MASK;
100 #define param_check_mode_mask(name, p) __param_check(name, p, unsigned int)
101 static const struct kernel_param_ops param_ops_mode_mask = {
102 .set = ati_remote2_set_mode_mask,
103 .get = ati_remote2_get_mode_mask,
105 module_param(mode_mask, mode_mask, 0644);
106 MODULE_PARM_DESC(mode_mask, "Bitmask of modes to accept <4:PC><3:AUX4><2:AUX3><1:AUX2><0:AUX1>");
108 static const struct usb_device_id ati_remote2_id_table[] = {
109 { USB_DEVICE(0x0471, 0x0602) }, /* ATI Remote Wonder II */
112 MODULE_DEVICE_TABLE(usb, ati_remote2_id_table);
114 static DEFINE_MUTEX(ati_remote2_mutex);
117 ATI_REMOTE2_OPENED = 0x1,
118 ATI_REMOTE2_SUSPENDED = 0x2,
130 static const struct {
133 } ati_remote2_key_table[] = {
146 { 0x10, KEY_VOLUMEUP },
147 { 0x11, KEY_VOLUMEDOWN },
148 { 0x20, KEY_CHANNELUP },
149 { 0x21, KEY_CHANNELDOWN },
150 { 0x28, KEY_FORWARD },
151 { 0x29, KEY_REWIND },
155 { 0x37, KEY_RECORD },
158 { 0x3f, KEY_PROG1 }, /* AUX1-AUX4 and PC */
172 { 0x8e, KEY_VENDOR },
173 { 0x96, KEY_COFFEE },
176 { 0xbe, KEY_QUESTION },
183 struct input_dev *idev;
184 struct usb_device *udev;
186 struct usb_interface *intf[2];
187 struct usb_endpoint_descriptor *ep[2];
190 dma_addr_t buf_dma[2];
192 unsigned long jiffies;
198 /* Each mode (AUX1-AUX4 and PC) can have an independent keymap. */
199 u16 keycode[ATI_REMOTE2_MODES][ARRAY_SIZE(ati_remote2_key_table)];
203 unsigned int channel_mask;
204 unsigned int mode_mask;
207 static struct usb_driver ati_remote2_driver;
209 static int ati_remote2_submit_urbs(struct ati_remote2 *ar2)
213 r = usb_submit_urb(ar2->urb[0], GFP_KERNEL);
215 dev_err(&ar2->intf[0]->dev,
216 "%s(): usb_submit_urb() = %d\n", __func__, r);
219 r = usb_submit_urb(ar2->urb[1], GFP_KERNEL);
221 usb_kill_urb(ar2->urb[0]);
222 dev_err(&ar2->intf[1]->dev,
223 "%s(): usb_submit_urb() = %d\n", __func__, r);
230 static void ati_remote2_kill_urbs(struct ati_remote2 *ar2)
232 usb_kill_urb(ar2->urb[1]);
233 usb_kill_urb(ar2->urb[0]);
236 static int ati_remote2_open(struct input_dev *idev)
238 struct ati_remote2 *ar2 = input_get_drvdata(idev);
241 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
243 r = usb_autopm_get_interface(ar2->intf[0]);
245 dev_err(&ar2->intf[0]->dev,
246 "%s(): usb_autopm_get_interface() = %d\n", __func__, r);
250 mutex_lock(&ati_remote2_mutex);
252 if (!(ar2->flags & ATI_REMOTE2_SUSPENDED)) {
253 r = ati_remote2_submit_urbs(ar2);
258 ar2->flags |= ATI_REMOTE2_OPENED;
260 mutex_unlock(&ati_remote2_mutex);
262 usb_autopm_put_interface(ar2->intf[0]);
267 mutex_unlock(&ati_remote2_mutex);
268 usb_autopm_put_interface(ar2->intf[0]);
273 static void ati_remote2_close(struct input_dev *idev)
275 struct ati_remote2 *ar2 = input_get_drvdata(idev);
277 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
279 mutex_lock(&ati_remote2_mutex);
281 if (!(ar2->flags & ATI_REMOTE2_SUSPENDED))
282 ati_remote2_kill_urbs(ar2);
284 ar2->flags &= ~ATI_REMOTE2_OPENED;
286 mutex_unlock(&ati_remote2_mutex);
289 static void ati_remote2_input_mouse(struct ati_remote2 *ar2)
291 struct input_dev *idev = ar2->idev;
292 u8 *data = ar2->buf[0];
295 channel = data[0] >> 4;
297 if (!((1 << channel) & ar2->channel_mask))
300 mode = data[0] & 0x0F;
302 if (mode > ATI_REMOTE2_PC) {
303 dev_err(&ar2->intf[0]->dev,
304 "Unknown mode byte (%02x %02x %02x %02x)\n",
305 data[3], data[2], data[1], data[0]);
309 if (!((1 << mode) & ar2->mode_mask))
312 input_event(idev, EV_REL, REL_X, (s8) data[1]);
313 input_event(idev, EV_REL, REL_Y, (s8) data[2]);
317 static int ati_remote2_lookup(unsigned int hw_code)
321 for (i = 0; i < ARRAY_SIZE(ati_remote2_key_table); i++)
322 if (ati_remote2_key_table[i].hw_code == hw_code)
328 static void ati_remote2_input_key(struct ati_remote2 *ar2)
330 struct input_dev *idev = ar2->idev;
331 u8 *data = ar2->buf[1];
332 int channel, mode, hw_code, index;
334 channel = data[0] >> 4;
336 if (!((1 << channel) & ar2->channel_mask))
339 mode = data[0] & 0x0F;
341 if (mode > ATI_REMOTE2_PC) {
342 dev_err(&ar2->intf[1]->dev,
343 "Unknown mode byte (%02x %02x %02x %02x)\n",
344 data[3], data[2], data[1], data[0]);
349 if (hw_code == 0x3f) {
351 * For some incomprehensible reason the mouse pad generates
352 * events which look identical to the events from the last
353 * pressed mode key. Naturally we don't want to generate key
354 * events for the mouse pad so we filter out any subsequent
355 * events from the same mode key.
357 if (ar2->mode == mode)
364 if (!((1 << mode) & ar2->mode_mask))
367 index = ati_remote2_lookup(hw_code);
369 dev_err(&ar2->intf[1]->dev,
370 "Unknown code byte (%02x %02x %02x %02x)\n",
371 data[3], data[2], data[1], data[0]);
376 case 0: /* release */
379 ar2->jiffies = jiffies + msecs_to_jiffies(idev->rep[REP_DELAY]);
383 /* No repeat for mouse buttons. */
384 if (ar2->keycode[mode][index] == BTN_LEFT ||
385 ar2->keycode[mode][index] == BTN_RIGHT)
388 if (!time_after_eq(jiffies, ar2->jiffies))
391 ar2->jiffies = jiffies + msecs_to_jiffies(idev->rep[REP_PERIOD]);
394 dev_err(&ar2->intf[1]->dev,
395 "Unknown state byte (%02x %02x %02x %02x)\n",
396 data[3], data[2], data[1], data[0]);
400 input_event(idev, EV_KEY, ar2->keycode[mode][index], data[1]);
404 static void ati_remote2_complete_mouse(struct urb *urb)
406 struct ati_remote2 *ar2 = urb->context;
409 switch (urb->status) {
411 usb_mark_last_busy(ar2->udev);
412 ati_remote2_input_mouse(ar2);
418 dev_dbg(&ar2->intf[0]->dev,
419 "%s(): urb status = %d\n", __func__, urb->status);
422 usb_mark_last_busy(ar2->udev);
423 dev_err(&ar2->intf[0]->dev,
424 "%s(): urb status = %d\n", __func__, urb->status);
427 r = usb_submit_urb(urb, GFP_ATOMIC);
429 dev_err(&ar2->intf[0]->dev,
430 "%s(): usb_submit_urb() = %d\n", __func__, r);
433 static void ati_remote2_complete_key(struct urb *urb)
435 struct ati_remote2 *ar2 = urb->context;
438 switch (urb->status) {
440 usb_mark_last_busy(ar2->udev);
441 ati_remote2_input_key(ar2);
447 dev_dbg(&ar2->intf[1]->dev,
448 "%s(): urb status = %d\n", __func__, urb->status);
451 usb_mark_last_busy(ar2->udev);
452 dev_err(&ar2->intf[1]->dev,
453 "%s(): urb status = %d\n", __func__, urb->status);
456 r = usb_submit_urb(urb, GFP_ATOMIC);
458 dev_err(&ar2->intf[1]->dev,
459 "%s(): usb_submit_urb() = %d\n", __func__, r);
462 static int ati_remote2_getkeycode(struct input_dev *idev,
463 struct input_keymap_entry *ke)
465 struct ati_remote2 *ar2 = input_get_drvdata(idev);
469 unsigned int scancode;
471 if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
473 if (index >= ATI_REMOTE2_MODES *
474 ARRAY_SIZE(ati_remote2_key_table))
477 mode = ke->index / ARRAY_SIZE(ati_remote2_key_table);
478 offset = ke->index % ARRAY_SIZE(ati_remote2_key_table);
479 scancode = (mode << 8) + ati_remote2_key_table[offset].hw_code;
481 if (input_scancode_to_scalar(ke, &scancode))
484 mode = scancode >> 8;
485 if (mode > ATI_REMOTE2_PC)
488 offset = ati_remote2_lookup(scancode & 0xff);
492 index = mode * ARRAY_SIZE(ati_remote2_key_table) + offset;
495 ke->keycode = ar2->keycode[mode][offset];
496 ke->len = sizeof(scancode);
497 memcpy(&ke->scancode, &scancode, sizeof(scancode));
503 static int ati_remote2_setkeycode(struct input_dev *idev,
504 const struct input_keymap_entry *ke,
505 unsigned int *old_keycode)
507 struct ati_remote2 *ar2 = input_get_drvdata(idev);
511 unsigned int scancode;
513 if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
514 if (ke->index >= ATI_REMOTE2_MODES *
515 ARRAY_SIZE(ati_remote2_key_table))
518 mode = ke->index / ARRAY_SIZE(ati_remote2_key_table);
519 offset = ke->index % ARRAY_SIZE(ati_remote2_key_table);
521 if (input_scancode_to_scalar(ke, &scancode))
524 mode = scancode >> 8;
525 if (mode > ATI_REMOTE2_PC)
528 offset = ati_remote2_lookup(scancode & 0xff);
533 *old_keycode = ar2->keycode[mode][offset];
534 ar2->keycode[mode][offset] = ke->keycode;
535 __set_bit(ke->keycode, idev->keybit);
537 for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) {
538 for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) {
539 if (ar2->keycode[mode][index] == *old_keycode)
544 __clear_bit(*old_keycode, idev->keybit);
549 static int ati_remote2_input_init(struct ati_remote2 *ar2)
551 struct input_dev *idev;
552 int index, mode, retval;
554 idev = input_allocate_device();
559 input_set_drvdata(idev, ar2);
561 idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | BIT_MASK(EV_REL);
562 idev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
564 idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
566 for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) {
567 for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) {
568 ar2->keycode[mode][index] = ati_remote2_key_table[index].keycode;
569 __set_bit(ar2->keycode[mode][index], idev->keybit);
573 /* AUX1-AUX4 and PC generate the same scancode. */
574 index = ati_remote2_lookup(0x3f);
575 ar2->keycode[ATI_REMOTE2_AUX1][index] = KEY_PROG1;
576 ar2->keycode[ATI_REMOTE2_AUX2][index] = KEY_PROG2;
577 ar2->keycode[ATI_REMOTE2_AUX3][index] = KEY_PROG3;
578 ar2->keycode[ATI_REMOTE2_AUX4][index] = KEY_PROG4;
579 ar2->keycode[ATI_REMOTE2_PC][index] = KEY_PC;
580 __set_bit(KEY_PROG1, idev->keybit);
581 __set_bit(KEY_PROG2, idev->keybit);
582 __set_bit(KEY_PROG3, idev->keybit);
583 __set_bit(KEY_PROG4, idev->keybit);
584 __set_bit(KEY_PC, idev->keybit);
586 idev->rep[REP_DELAY] = 250;
587 idev->rep[REP_PERIOD] = 33;
589 idev->open = ati_remote2_open;
590 idev->close = ati_remote2_close;
592 idev->getkeycode = ati_remote2_getkeycode;
593 idev->setkeycode = ati_remote2_setkeycode;
595 idev->name = ar2->name;
596 idev->phys = ar2->phys;
598 usb_to_input_id(ar2->udev, &idev->id);
599 idev->dev.parent = &ar2->udev->dev;
601 retval = input_register_device(idev);
603 input_free_device(idev);
608 static int ati_remote2_urb_init(struct ati_remote2 *ar2)
610 struct usb_device *udev = ar2->udev;
613 for (i = 0; i < 2; i++) {
614 ar2->buf[i] = usb_alloc_coherent(udev, 4, GFP_KERNEL, &ar2->buf_dma[i]);
618 ar2->urb[i] = usb_alloc_urb(0, GFP_KERNEL);
622 pipe = usb_rcvintpipe(udev, ar2->ep[i]->bEndpointAddress);
623 maxp = usb_maxpacket(udev, pipe);
624 maxp = maxp > 4 ? 4 : maxp;
626 usb_fill_int_urb(ar2->urb[i], udev, pipe, ar2->buf[i], maxp,
627 i ? ati_remote2_complete_key : ati_remote2_complete_mouse,
628 ar2, ar2->ep[i]->bInterval);
629 ar2->urb[i]->transfer_dma = ar2->buf_dma[i];
630 ar2->urb[i]->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
636 static void ati_remote2_urb_cleanup(struct ati_remote2 *ar2)
640 for (i = 0; i < 2; i++) {
641 usb_free_urb(ar2->urb[i]);
642 usb_free_coherent(ar2->udev, 4, ar2->buf[i], ar2->buf_dma[i]);
646 static int ati_remote2_setup(struct ati_remote2 *ar2, unsigned int ch_mask)
651 * Configure receiver to only accept input from remote "channel"
652 * channel == 0 -> Accept input from any remote channel
653 * channel == 1 -> Only accept input from remote channel 1
654 * channel == 2 -> Only accept input from remote channel 2
656 * channel == 16 -> Only accept input from remote channel 16
660 for (i = 0; i < 16; i++) {
661 if ((1 << i) & ch_mask) {
662 if (!(~(1 << i) & ch_mask))
668 r = usb_control_msg(ar2->udev, usb_sndctrlpipe(ar2->udev, 0),
670 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
671 channel, 0x0, NULL, 0, USB_CTRL_SET_TIMEOUT);
673 dev_err(&ar2->udev->dev, "%s - failed to set channel due to error: %d\n",
681 static ssize_t ati_remote2_show_channel_mask(struct device *dev,
682 struct device_attribute *attr,
685 struct usb_device *udev = to_usb_device(dev);
686 struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
687 struct ati_remote2 *ar2 = usb_get_intfdata(intf);
689 return sprintf(buf, "0x%04x\n", ar2->channel_mask);
692 static ssize_t ati_remote2_store_channel_mask(struct device *dev,
693 struct device_attribute *attr,
694 const char *buf, size_t count)
696 struct usb_device *udev = to_usb_device(dev);
697 struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
698 struct ati_remote2 *ar2 = usb_get_intfdata(intf);
702 r = kstrtouint(buf, 0, &mask);
706 if (mask & ~ATI_REMOTE2_MAX_CHANNEL_MASK)
709 r = usb_autopm_get_interface(ar2->intf[0]);
711 dev_err(&ar2->intf[0]->dev,
712 "%s(): usb_autopm_get_interface() = %d\n", __func__, r);
716 mutex_lock(&ati_remote2_mutex);
718 if (mask != ar2->channel_mask) {
719 r = ati_remote2_setup(ar2, mask);
721 ar2->channel_mask = mask;
724 mutex_unlock(&ati_remote2_mutex);
726 usb_autopm_put_interface(ar2->intf[0]);
728 return r ? r : count;
731 static ssize_t ati_remote2_show_mode_mask(struct device *dev,
732 struct device_attribute *attr,
735 struct usb_device *udev = to_usb_device(dev);
736 struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
737 struct ati_remote2 *ar2 = usb_get_intfdata(intf);
739 return sprintf(buf, "0x%02x\n", ar2->mode_mask);
742 static ssize_t ati_remote2_store_mode_mask(struct device *dev,
743 struct device_attribute *attr,
744 const char *buf, size_t count)
746 struct usb_device *udev = to_usb_device(dev);
747 struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
748 struct ati_remote2 *ar2 = usb_get_intfdata(intf);
752 err = kstrtouint(buf, 0, &mask);
756 if (mask & ~ATI_REMOTE2_MAX_MODE_MASK)
759 ar2->mode_mask = mask;
764 static DEVICE_ATTR(channel_mask, 0644, ati_remote2_show_channel_mask,
765 ati_remote2_store_channel_mask);
767 static DEVICE_ATTR(mode_mask, 0644, ati_remote2_show_mode_mask,
768 ati_remote2_store_mode_mask);
770 static struct attribute *ati_remote2_attrs[] = {
771 &dev_attr_channel_mask.attr,
772 &dev_attr_mode_mask.attr,
775 ATTRIBUTE_GROUPS(ati_remote2);
777 static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id)
779 struct usb_device *udev = interface_to_usbdev(interface);
780 struct usb_host_interface *alt = interface->cur_altsetting;
781 struct ati_remote2 *ar2;
784 if (alt->desc.bInterfaceNumber)
787 ar2 = kzalloc(sizeof (struct ati_remote2), GFP_KERNEL);
793 /* Sanity check, first interface must have an endpoint */
794 if (alt->desc.bNumEndpoints < 1 || !alt->endpoint) {
795 dev_err(&interface->dev,
796 "%s(): interface 0 must have an endpoint\n", __func__);
800 ar2->intf[0] = interface;
801 ar2->ep[0] = &alt->endpoint[0].desc;
803 /* Sanity check, the device must have two interfaces */
804 ar2->intf[1] = usb_ifnum_to_if(udev, 1);
805 if ((udev->actconfig->desc.bNumInterfaces < 2) || !ar2->intf[1]) {
806 dev_err(&interface->dev, "%s(): need 2 interfaces, found %d\n",
807 __func__, udev->actconfig->desc.bNumInterfaces);
812 r = usb_driver_claim_interface(&ati_remote2_driver, ar2->intf[1], ar2);
816 /* Sanity check, second interface must have an endpoint */
817 alt = ar2->intf[1]->cur_altsetting;
818 if (alt->desc.bNumEndpoints < 1 || !alt->endpoint) {
819 dev_err(&interface->dev,
820 "%s(): interface 1 must have an endpoint\n", __func__);
824 ar2->ep[1] = &alt->endpoint[0].desc;
826 r = ati_remote2_urb_init(ar2);
830 ar2->channel_mask = channel_mask;
831 ar2->mode_mask = mode_mask;
833 r = ati_remote2_setup(ar2, ar2->channel_mask);
837 usb_make_path(udev, ar2->phys, sizeof(ar2->phys));
838 strlcat(ar2->phys, "/input0", sizeof(ar2->phys));
840 strlcat(ar2->name, "ATI Remote Wonder II", sizeof(ar2->name));
842 r = ati_remote2_input_init(ar2);
846 usb_set_intfdata(interface, ar2);
848 interface->needs_remote_wakeup = 1;
853 ati_remote2_urb_cleanup(ar2);
855 usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
862 static void ati_remote2_disconnect(struct usb_interface *interface)
864 struct ati_remote2 *ar2;
865 struct usb_host_interface *alt = interface->cur_altsetting;
867 if (alt->desc.bInterfaceNumber)
870 ar2 = usb_get_intfdata(interface);
871 usb_set_intfdata(interface, NULL);
873 input_unregister_device(ar2->idev);
875 ati_remote2_urb_cleanup(ar2);
877 usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
882 static int ati_remote2_suspend(struct usb_interface *interface,
883 pm_message_t message)
885 struct ati_remote2 *ar2;
886 struct usb_host_interface *alt = interface->cur_altsetting;
888 if (alt->desc.bInterfaceNumber)
891 ar2 = usb_get_intfdata(interface);
893 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
895 mutex_lock(&ati_remote2_mutex);
897 if (ar2->flags & ATI_REMOTE2_OPENED)
898 ati_remote2_kill_urbs(ar2);
900 ar2->flags |= ATI_REMOTE2_SUSPENDED;
902 mutex_unlock(&ati_remote2_mutex);
907 static int ati_remote2_resume(struct usb_interface *interface)
909 struct ati_remote2 *ar2;
910 struct usb_host_interface *alt = interface->cur_altsetting;
913 if (alt->desc.bInterfaceNumber)
916 ar2 = usb_get_intfdata(interface);
918 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
920 mutex_lock(&ati_remote2_mutex);
922 if (ar2->flags & ATI_REMOTE2_OPENED)
923 r = ati_remote2_submit_urbs(ar2);
926 ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
928 mutex_unlock(&ati_remote2_mutex);
933 static int ati_remote2_reset_resume(struct usb_interface *interface)
935 struct ati_remote2 *ar2;
936 struct usb_host_interface *alt = interface->cur_altsetting;
939 if (alt->desc.bInterfaceNumber)
942 ar2 = usb_get_intfdata(interface);
944 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
946 mutex_lock(&ati_remote2_mutex);
948 r = ati_remote2_setup(ar2, ar2->channel_mask);
952 if (ar2->flags & ATI_REMOTE2_OPENED)
953 r = ati_remote2_submit_urbs(ar2);
956 ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
959 mutex_unlock(&ati_remote2_mutex);
964 static int ati_remote2_pre_reset(struct usb_interface *interface)
966 struct ati_remote2 *ar2;
967 struct usb_host_interface *alt = interface->cur_altsetting;
969 if (alt->desc.bInterfaceNumber)
972 ar2 = usb_get_intfdata(interface);
974 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
976 mutex_lock(&ati_remote2_mutex);
978 if (ar2->flags == ATI_REMOTE2_OPENED)
979 ati_remote2_kill_urbs(ar2);
984 static int ati_remote2_post_reset(struct usb_interface *interface)
986 struct ati_remote2 *ar2;
987 struct usb_host_interface *alt = interface->cur_altsetting;
990 if (alt->desc.bInterfaceNumber)
993 ar2 = usb_get_intfdata(interface);
995 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
997 if (ar2->flags == ATI_REMOTE2_OPENED)
998 r = ati_remote2_submit_urbs(ar2);
1000 mutex_unlock(&ati_remote2_mutex);
1005 static struct usb_driver ati_remote2_driver = {
1006 .name = "ati_remote2",
1007 .probe = ati_remote2_probe,
1008 .disconnect = ati_remote2_disconnect,
1009 .dev_groups = ati_remote2_groups,
1010 .id_table = ati_remote2_id_table,
1011 .suspend = ati_remote2_suspend,
1012 .resume = ati_remote2_resume,
1013 .reset_resume = ati_remote2_reset_resume,
1014 .pre_reset = ati_remote2_pre_reset,
1015 .post_reset = ati_remote2_post_reset,
1016 .supports_autosuspend = 1,
1019 module_usb_driver(ati_remote2_driver);