Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[linux-btrfs-devel.git] / drivers / input / misc / ati_remote2.c
blob1de58e8a1b71216180808f7bd2c2e7d233f1cce7
1 /*
2 * ati_remote2 - ATI/Philips USB RF remote driver
4 * Copyright (C) 2005-2008 Ville Syrjala <syrjala@sci.fi>
5 * Copyright (C) 2007-2008 Peter Stokes <linux@dadeos.co.uk>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2
9 * as published by the Free Software Foundation.
12 #include <linux/usb/input.h>
13 #include <linux/slab.h>
15 #define DRIVER_DESC "ATI/Philips USB RF remote driver"
16 #define DRIVER_VERSION "0.3"
18 MODULE_DESCRIPTION(DRIVER_DESC);
19 MODULE_VERSION(DRIVER_VERSION);
20 MODULE_AUTHOR("Ville Syrjala <syrjala@sci.fi>");
21 MODULE_LICENSE("GPL");
24 * ATI Remote Wonder II Channel Configuration
26 * The remote control can by assigned one of sixteen "channels" in order to facilitate
27 * the use of multiple remote controls within range of each other.
28 * A remote's "channel" may be altered by pressing and holding the "PC" button for
29 * approximately 3 seconds, after which the button will slowly flash the count of the
30 * currently configured "channel", using the numeric keypad enter a number between 1 and
31 * 16 and then press the "PC" button again, the button will slowly flash the count of the
32 * newly configured "channel".
35 enum {
36 ATI_REMOTE2_MAX_CHANNEL_MASK = 0xFFFF,
37 ATI_REMOTE2_MAX_MODE_MASK = 0x1F,
40 static int ati_remote2_set_mask(const char *val,
41 const struct kernel_param *kp,
42 unsigned int max)
44 unsigned long mask;
45 int ret;
47 if (!val)
48 return -EINVAL;
50 ret = strict_strtoul(val, 0, &mask);
51 if (ret)
52 return ret;
54 if (mask & ~max)
55 return -EINVAL;
57 *(unsigned int *)kp->arg = mask;
59 return 0;
62 static int ati_remote2_set_channel_mask(const char *val,
63 const struct kernel_param *kp)
65 pr_debug("%s()\n", __func__);
67 return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_CHANNEL_MASK);
70 static int ati_remote2_get_channel_mask(char *buffer,
71 const struct kernel_param *kp)
73 pr_debug("%s()\n", __func__);
75 return sprintf(buffer, "0x%04x", *(unsigned int *)kp->arg);
78 static int ati_remote2_set_mode_mask(const char *val,
79 const struct kernel_param *kp)
81 pr_debug("%s()\n", __func__);
83 return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_MODE_MASK);
86 static int ati_remote2_get_mode_mask(char *buffer,
87 const struct kernel_param *kp)
89 pr_debug("%s()\n", __func__);
91 return sprintf(buffer, "0x%02x", *(unsigned int *)kp->arg);
94 static unsigned int channel_mask = ATI_REMOTE2_MAX_CHANNEL_MASK;
95 #define param_check_channel_mask(name, p) __param_check(name, p, unsigned int)
96 static struct kernel_param_ops param_ops_channel_mask = {
97 .set = ati_remote2_set_channel_mask,
98 .get = ati_remote2_get_channel_mask,
100 module_param(channel_mask, channel_mask, 0644);
101 MODULE_PARM_DESC(channel_mask, "Bitmask of channels to accept <15:Channel16>...<1:Channel2><0:Channel1>");
103 static unsigned int mode_mask = ATI_REMOTE2_MAX_MODE_MASK;
104 #define param_check_mode_mask(name, p) __param_check(name, p, unsigned int)
105 static struct kernel_param_ops param_ops_mode_mask = {
106 .set = ati_remote2_set_mode_mask,
107 .get = ati_remote2_get_mode_mask,
109 module_param(mode_mask, mode_mask, 0644);
110 MODULE_PARM_DESC(mode_mask, "Bitmask of modes to accept <4:PC><3:AUX4><2:AUX3><1:AUX2><0:AUX1>");
112 static struct usb_device_id ati_remote2_id_table[] = {
113 { USB_DEVICE(0x0471, 0x0602) }, /* ATI Remote Wonder II */
116 MODULE_DEVICE_TABLE(usb, ati_remote2_id_table);
118 static DEFINE_MUTEX(ati_remote2_mutex);
120 enum {
121 ATI_REMOTE2_OPENED = 0x1,
122 ATI_REMOTE2_SUSPENDED = 0x2,
125 enum {
126 ATI_REMOTE2_AUX1,
127 ATI_REMOTE2_AUX2,
128 ATI_REMOTE2_AUX3,
129 ATI_REMOTE2_AUX4,
130 ATI_REMOTE2_PC,
131 ATI_REMOTE2_MODES,
134 static const struct {
135 u8 hw_code;
136 u16 keycode;
137 } ati_remote2_key_table[] = {
138 { 0x00, KEY_0 },
139 { 0x01, KEY_1 },
140 { 0x02, KEY_2 },
141 { 0x03, KEY_3 },
142 { 0x04, KEY_4 },
143 { 0x05, KEY_5 },
144 { 0x06, KEY_6 },
145 { 0x07, KEY_7 },
146 { 0x08, KEY_8 },
147 { 0x09, KEY_9 },
148 { 0x0c, KEY_POWER },
149 { 0x0d, KEY_MUTE },
150 { 0x10, KEY_VOLUMEUP },
151 { 0x11, KEY_VOLUMEDOWN },
152 { 0x20, KEY_CHANNELUP },
153 { 0x21, KEY_CHANNELDOWN },
154 { 0x28, KEY_FORWARD },
155 { 0x29, KEY_REWIND },
156 { 0x2c, KEY_PLAY },
157 { 0x30, KEY_PAUSE },
158 { 0x31, KEY_STOP },
159 { 0x37, KEY_RECORD },
160 { 0x38, KEY_DVD },
161 { 0x39, KEY_TV },
162 { 0x3f, KEY_PROG1 }, /* AUX1-AUX4 and PC */
163 { 0x54, KEY_MENU },
164 { 0x58, KEY_UP },
165 { 0x59, KEY_DOWN },
166 { 0x5a, KEY_LEFT },
167 { 0x5b, KEY_RIGHT },
168 { 0x5c, KEY_OK },
169 { 0x78, KEY_A },
170 { 0x79, KEY_B },
171 { 0x7a, KEY_C },
172 { 0x7b, KEY_D },
173 { 0x7c, KEY_E },
174 { 0x7d, KEY_F },
175 { 0x82, KEY_ENTER },
176 { 0x8e, KEY_VENDOR },
177 { 0x96, KEY_COFFEE },
178 { 0xa9, BTN_LEFT },
179 { 0xaa, BTN_RIGHT },
180 { 0xbe, KEY_QUESTION },
181 { 0xd0, KEY_EDIT },
182 { 0xd5, KEY_FRONT },
183 { 0xf9, KEY_INFO },
186 struct ati_remote2 {
187 struct input_dev *idev;
188 struct usb_device *udev;
190 struct usb_interface *intf[2];
191 struct usb_endpoint_descriptor *ep[2];
192 struct urb *urb[2];
193 void *buf[2];
194 dma_addr_t buf_dma[2];
196 unsigned long jiffies;
197 int mode;
199 char name[64];
200 char phys[64];
202 /* Each mode (AUX1-AUX4 and PC) can have an independent keymap. */
203 u16 keycode[ATI_REMOTE2_MODES][ARRAY_SIZE(ati_remote2_key_table)];
205 unsigned int flags;
207 unsigned int channel_mask;
208 unsigned int mode_mask;
211 static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id);
212 static void ati_remote2_disconnect(struct usb_interface *interface);
213 static int ati_remote2_suspend(struct usb_interface *interface, pm_message_t message);
214 static int ati_remote2_resume(struct usb_interface *interface);
215 static int ati_remote2_reset_resume(struct usb_interface *interface);
216 static int ati_remote2_pre_reset(struct usb_interface *interface);
217 static int ati_remote2_post_reset(struct usb_interface *interface);
219 static struct usb_driver ati_remote2_driver = {
220 .name = "ati_remote2",
221 .probe = ati_remote2_probe,
222 .disconnect = ati_remote2_disconnect,
223 .id_table = ati_remote2_id_table,
224 .suspend = ati_remote2_suspend,
225 .resume = ati_remote2_resume,
226 .reset_resume = ati_remote2_reset_resume,
227 .pre_reset = ati_remote2_pre_reset,
228 .post_reset = ati_remote2_post_reset,
229 .supports_autosuspend = 1,
232 static int ati_remote2_submit_urbs(struct ati_remote2 *ar2)
234 int r;
236 r = usb_submit_urb(ar2->urb[0], GFP_KERNEL);
237 if (r) {
238 dev_err(&ar2->intf[0]->dev,
239 "%s(): usb_submit_urb() = %d\n", __func__, r);
240 return r;
242 r = usb_submit_urb(ar2->urb[1], GFP_KERNEL);
243 if (r) {
244 usb_kill_urb(ar2->urb[0]);
245 dev_err(&ar2->intf[1]->dev,
246 "%s(): usb_submit_urb() = %d\n", __func__, r);
247 return r;
250 return 0;
253 static void ati_remote2_kill_urbs(struct ati_remote2 *ar2)
255 usb_kill_urb(ar2->urb[1]);
256 usb_kill_urb(ar2->urb[0]);
259 static int ati_remote2_open(struct input_dev *idev)
261 struct ati_remote2 *ar2 = input_get_drvdata(idev);
262 int r;
264 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
266 r = usb_autopm_get_interface(ar2->intf[0]);
267 if (r) {
268 dev_err(&ar2->intf[0]->dev,
269 "%s(): usb_autopm_get_interface() = %d\n", __func__, r);
270 goto fail1;
273 mutex_lock(&ati_remote2_mutex);
275 if (!(ar2->flags & ATI_REMOTE2_SUSPENDED)) {
276 r = ati_remote2_submit_urbs(ar2);
277 if (r)
278 goto fail2;
281 ar2->flags |= ATI_REMOTE2_OPENED;
283 mutex_unlock(&ati_remote2_mutex);
285 usb_autopm_put_interface(ar2->intf[0]);
287 return 0;
289 fail2:
290 mutex_unlock(&ati_remote2_mutex);
291 usb_autopm_put_interface(ar2->intf[0]);
292 fail1:
293 return r;
296 static void ati_remote2_close(struct input_dev *idev)
298 struct ati_remote2 *ar2 = input_get_drvdata(idev);
300 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
302 mutex_lock(&ati_remote2_mutex);
304 if (!(ar2->flags & ATI_REMOTE2_SUSPENDED))
305 ati_remote2_kill_urbs(ar2);
307 ar2->flags &= ~ATI_REMOTE2_OPENED;
309 mutex_unlock(&ati_remote2_mutex);
312 static void ati_remote2_input_mouse(struct ati_remote2 *ar2)
314 struct input_dev *idev = ar2->idev;
315 u8 *data = ar2->buf[0];
316 int channel, mode;
318 channel = data[0] >> 4;
320 if (!((1 << channel) & ar2->channel_mask))
321 return;
323 mode = data[0] & 0x0F;
325 if (mode > ATI_REMOTE2_PC) {
326 dev_err(&ar2->intf[0]->dev,
327 "Unknown mode byte (%02x %02x %02x %02x)\n",
328 data[3], data[2], data[1], data[0]);
329 return;
332 if (!((1 << mode) & ar2->mode_mask))
333 return;
335 input_event(idev, EV_REL, REL_X, (s8) data[1]);
336 input_event(idev, EV_REL, REL_Y, (s8) data[2]);
337 input_sync(idev);
340 static int ati_remote2_lookup(unsigned int hw_code)
342 int i;
344 for (i = 0; i < ARRAY_SIZE(ati_remote2_key_table); i++)
345 if (ati_remote2_key_table[i].hw_code == hw_code)
346 return i;
348 return -1;
351 static void ati_remote2_input_key(struct ati_remote2 *ar2)
353 struct input_dev *idev = ar2->idev;
354 u8 *data = ar2->buf[1];
355 int channel, mode, hw_code, index;
357 channel = data[0] >> 4;
359 if (!((1 << channel) & ar2->channel_mask))
360 return;
362 mode = data[0] & 0x0F;
364 if (mode > ATI_REMOTE2_PC) {
365 dev_err(&ar2->intf[1]->dev,
366 "Unknown mode byte (%02x %02x %02x %02x)\n",
367 data[3], data[2], data[1], data[0]);
368 return;
371 hw_code = data[2];
372 if (hw_code == 0x3f) {
374 * For some incomprehensible reason the mouse pad generates
375 * events which look identical to the events from the last
376 * pressed mode key. Naturally we don't want to generate key
377 * events for the mouse pad so we filter out any subsequent
378 * events from the same mode key.
380 if (ar2->mode == mode)
381 return;
383 if (data[1] == 0)
384 ar2->mode = mode;
387 if (!((1 << mode) & ar2->mode_mask))
388 return;
390 index = ati_remote2_lookup(hw_code);
391 if (index < 0) {
392 dev_err(&ar2->intf[1]->dev,
393 "Unknown code byte (%02x %02x %02x %02x)\n",
394 data[3], data[2], data[1], data[0]);
395 return;
398 switch (data[1]) {
399 case 0: /* release */
400 break;
401 case 1: /* press */
402 ar2->jiffies = jiffies + msecs_to_jiffies(idev->rep[REP_DELAY]);
403 break;
404 case 2: /* repeat */
406 /* No repeat for mouse buttons. */
407 if (ar2->keycode[mode][index] == BTN_LEFT ||
408 ar2->keycode[mode][index] == BTN_RIGHT)
409 return;
411 if (!time_after_eq(jiffies, ar2->jiffies))
412 return;
414 ar2->jiffies = jiffies + msecs_to_jiffies(idev->rep[REP_PERIOD]);
415 break;
416 default:
417 dev_err(&ar2->intf[1]->dev,
418 "Unknown state byte (%02x %02x %02x %02x)\n",
419 data[3], data[2], data[1], data[0]);
420 return;
423 input_event(idev, EV_KEY, ar2->keycode[mode][index], data[1]);
424 input_sync(idev);
427 static void ati_remote2_complete_mouse(struct urb *urb)
429 struct ati_remote2 *ar2 = urb->context;
430 int r;
432 switch (urb->status) {
433 case 0:
434 usb_mark_last_busy(ar2->udev);
435 ati_remote2_input_mouse(ar2);
436 break;
437 case -ENOENT:
438 case -EILSEQ:
439 case -ECONNRESET:
440 case -ESHUTDOWN:
441 dev_dbg(&ar2->intf[0]->dev,
442 "%s(): urb status = %d\n", __func__, urb->status);
443 return;
444 default:
445 usb_mark_last_busy(ar2->udev);
446 dev_err(&ar2->intf[0]->dev,
447 "%s(): urb status = %d\n", __func__, urb->status);
450 r = usb_submit_urb(urb, GFP_ATOMIC);
451 if (r)
452 dev_err(&ar2->intf[0]->dev,
453 "%s(): usb_submit_urb() = %d\n", __func__, r);
456 static void ati_remote2_complete_key(struct urb *urb)
458 struct ati_remote2 *ar2 = urb->context;
459 int r;
461 switch (urb->status) {
462 case 0:
463 usb_mark_last_busy(ar2->udev);
464 ati_remote2_input_key(ar2);
465 break;
466 case -ENOENT:
467 case -EILSEQ:
468 case -ECONNRESET:
469 case -ESHUTDOWN:
470 dev_dbg(&ar2->intf[1]->dev,
471 "%s(): urb status = %d\n", __func__, urb->status);
472 return;
473 default:
474 usb_mark_last_busy(ar2->udev);
475 dev_err(&ar2->intf[1]->dev,
476 "%s(): urb status = %d\n", __func__, urb->status);
479 r = usb_submit_urb(urb, GFP_ATOMIC);
480 if (r)
481 dev_err(&ar2->intf[1]->dev,
482 "%s(): usb_submit_urb() = %d\n", __func__, r);
485 static int ati_remote2_getkeycode(struct input_dev *idev,
486 struct input_keymap_entry *ke)
488 struct ati_remote2 *ar2 = input_get_drvdata(idev);
489 unsigned int mode;
490 int offset;
491 unsigned int index;
492 unsigned int scancode;
494 if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
495 index = ke->index;
496 if (index >= ATI_REMOTE2_MODES *
497 ARRAY_SIZE(ati_remote2_key_table))
498 return -EINVAL;
500 mode = ke->index / ARRAY_SIZE(ati_remote2_key_table);
501 offset = ke->index % ARRAY_SIZE(ati_remote2_key_table);
502 scancode = (mode << 8) + ati_remote2_key_table[offset].hw_code;
503 } else {
504 if (input_scancode_to_scalar(ke, &scancode))
505 return -EINVAL;
507 mode = scancode >> 8;
508 if (mode > ATI_REMOTE2_PC)
509 return -EINVAL;
511 offset = ati_remote2_lookup(scancode & 0xff);
512 if (offset < 0)
513 return -EINVAL;
515 index = mode * ARRAY_SIZE(ati_remote2_key_table) + offset;
518 ke->keycode = ar2->keycode[mode][offset];
519 ke->len = sizeof(scancode);
520 memcpy(&ke->scancode, &scancode, sizeof(scancode));
521 ke->index = index;
523 return 0;
526 static int ati_remote2_setkeycode(struct input_dev *idev,
527 const struct input_keymap_entry *ke,
528 unsigned int *old_keycode)
530 struct ati_remote2 *ar2 = input_get_drvdata(idev);
531 unsigned int mode;
532 int offset;
533 unsigned int index;
534 unsigned int scancode;
536 if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
537 if (ke->index >= ATI_REMOTE2_MODES *
538 ARRAY_SIZE(ati_remote2_key_table))
539 return -EINVAL;
541 mode = ke->index / ARRAY_SIZE(ati_remote2_key_table);
542 offset = ke->index % ARRAY_SIZE(ati_remote2_key_table);
543 } else {
544 if (input_scancode_to_scalar(ke, &scancode))
545 return -EINVAL;
547 mode = scancode >> 8;
548 if (mode > ATI_REMOTE2_PC)
549 return -EINVAL;
551 offset = ati_remote2_lookup(scancode & 0xff);
552 if (offset < 0)
553 return -EINVAL;
556 *old_keycode = ar2->keycode[mode][offset];
557 ar2->keycode[mode][offset] = ke->keycode;
558 __set_bit(ke->keycode, idev->keybit);
560 for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) {
561 for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) {
562 if (ar2->keycode[mode][index] == *old_keycode)
563 return 0;
567 __clear_bit(*old_keycode, idev->keybit);
569 return 0;
572 static int ati_remote2_input_init(struct ati_remote2 *ar2)
574 struct input_dev *idev;
575 int index, mode, retval;
577 idev = input_allocate_device();
578 if (!idev)
579 return -ENOMEM;
581 ar2->idev = idev;
582 input_set_drvdata(idev, ar2);
584 idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | BIT_MASK(EV_REL);
585 idev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
586 BIT_MASK(BTN_RIGHT);
587 idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
589 for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) {
590 for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) {
591 ar2->keycode[mode][index] = ati_remote2_key_table[index].keycode;
592 __set_bit(ar2->keycode[mode][index], idev->keybit);
596 /* AUX1-AUX4 and PC generate the same scancode. */
597 index = ati_remote2_lookup(0x3f);
598 ar2->keycode[ATI_REMOTE2_AUX1][index] = KEY_PROG1;
599 ar2->keycode[ATI_REMOTE2_AUX2][index] = KEY_PROG2;
600 ar2->keycode[ATI_REMOTE2_AUX3][index] = KEY_PROG3;
601 ar2->keycode[ATI_REMOTE2_AUX4][index] = KEY_PROG4;
602 ar2->keycode[ATI_REMOTE2_PC][index] = KEY_PC;
603 __set_bit(KEY_PROG1, idev->keybit);
604 __set_bit(KEY_PROG2, idev->keybit);
605 __set_bit(KEY_PROG3, idev->keybit);
606 __set_bit(KEY_PROG4, idev->keybit);
607 __set_bit(KEY_PC, idev->keybit);
609 idev->rep[REP_DELAY] = 250;
610 idev->rep[REP_PERIOD] = 33;
612 idev->open = ati_remote2_open;
613 idev->close = ati_remote2_close;
615 idev->getkeycode = ati_remote2_getkeycode;
616 idev->setkeycode = ati_remote2_setkeycode;
618 idev->name = ar2->name;
619 idev->phys = ar2->phys;
621 usb_to_input_id(ar2->udev, &idev->id);
622 idev->dev.parent = &ar2->udev->dev;
624 retval = input_register_device(idev);
625 if (retval)
626 input_free_device(idev);
628 return retval;
631 static int ati_remote2_urb_init(struct ati_remote2 *ar2)
633 struct usb_device *udev = ar2->udev;
634 int i, pipe, maxp;
636 for (i = 0; i < 2; i++) {
637 ar2->buf[i] = usb_alloc_coherent(udev, 4, GFP_KERNEL, &ar2->buf_dma[i]);
638 if (!ar2->buf[i])
639 return -ENOMEM;
641 ar2->urb[i] = usb_alloc_urb(0, GFP_KERNEL);
642 if (!ar2->urb[i])
643 return -ENOMEM;
645 pipe = usb_rcvintpipe(udev, ar2->ep[i]->bEndpointAddress);
646 maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
647 maxp = maxp > 4 ? 4 : maxp;
649 usb_fill_int_urb(ar2->urb[i], udev, pipe, ar2->buf[i], maxp,
650 i ? ati_remote2_complete_key : ati_remote2_complete_mouse,
651 ar2, ar2->ep[i]->bInterval);
652 ar2->urb[i]->transfer_dma = ar2->buf_dma[i];
653 ar2->urb[i]->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
656 return 0;
659 static void ati_remote2_urb_cleanup(struct ati_remote2 *ar2)
661 int i;
663 for (i = 0; i < 2; i++) {
664 usb_free_urb(ar2->urb[i]);
665 usb_free_coherent(ar2->udev, 4, ar2->buf[i], ar2->buf_dma[i]);
669 static int ati_remote2_setup(struct ati_remote2 *ar2, unsigned int ch_mask)
671 int r, i, channel;
674 * Configure receiver to only accept input from remote "channel"
675 * channel == 0 -> Accept input from any remote channel
676 * channel == 1 -> Only accept input from remote channel 1
677 * channel == 2 -> Only accept input from remote channel 2
678 * ...
679 * channel == 16 -> Only accept input from remote channel 16
682 channel = 0;
683 for (i = 0; i < 16; i++) {
684 if ((1 << i) & ch_mask) {
685 if (!(~(1 << i) & ch_mask))
686 channel = i + 1;
687 break;
691 r = usb_control_msg(ar2->udev, usb_sndctrlpipe(ar2->udev, 0),
692 0x20,
693 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
694 channel, 0x0, NULL, 0, USB_CTRL_SET_TIMEOUT);
695 if (r) {
696 dev_err(&ar2->udev->dev, "%s - failed to set channel due to error: %d\n",
697 __func__, r);
698 return r;
701 return 0;
704 static ssize_t ati_remote2_show_channel_mask(struct device *dev,
705 struct device_attribute *attr,
706 char *buf)
708 struct usb_device *udev = to_usb_device(dev);
709 struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
710 struct ati_remote2 *ar2 = usb_get_intfdata(intf);
712 return sprintf(buf, "0x%04x\n", ar2->channel_mask);
715 static ssize_t ati_remote2_store_channel_mask(struct device *dev,
716 struct device_attribute *attr,
717 const char *buf, size_t count)
719 struct usb_device *udev = to_usb_device(dev);
720 struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
721 struct ati_remote2 *ar2 = usb_get_intfdata(intf);
722 unsigned long mask;
723 int r;
725 if (strict_strtoul(buf, 0, &mask))
726 return -EINVAL;
728 if (mask & ~ATI_REMOTE2_MAX_CHANNEL_MASK)
729 return -EINVAL;
731 r = usb_autopm_get_interface(ar2->intf[0]);
732 if (r) {
733 dev_err(&ar2->intf[0]->dev,
734 "%s(): usb_autopm_get_interface() = %d\n", __func__, r);
735 return r;
738 mutex_lock(&ati_remote2_mutex);
740 if (mask != ar2->channel_mask) {
741 r = ati_remote2_setup(ar2, mask);
742 if (!r)
743 ar2->channel_mask = mask;
746 mutex_unlock(&ati_remote2_mutex);
748 usb_autopm_put_interface(ar2->intf[0]);
750 return r ? r : count;
753 static ssize_t ati_remote2_show_mode_mask(struct device *dev,
754 struct device_attribute *attr,
755 char *buf)
757 struct usb_device *udev = to_usb_device(dev);
758 struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
759 struct ati_remote2 *ar2 = usb_get_intfdata(intf);
761 return sprintf(buf, "0x%02x\n", ar2->mode_mask);
764 static ssize_t ati_remote2_store_mode_mask(struct device *dev,
765 struct device_attribute *attr,
766 const char *buf, size_t count)
768 struct usb_device *udev = to_usb_device(dev);
769 struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
770 struct ati_remote2 *ar2 = usb_get_intfdata(intf);
771 unsigned long mask;
773 if (strict_strtoul(buf, 0, &mask))
774 return -EINVAL;
776 if (mask & ~ATI_REMOTE2_MAX_MODE_MASK)
777 return -EINVAL;
779 ar2->mode_mask = mask;
781 return count;
784 static DEVICE_ATTR(channel_mask, 0644, ati_remote2_show_channel_mask,
785 ati_remote2_store_channel_mask);
787 static DEVICE_ATTR(mode_mask, 0644, ati_remote2_show_mode_mask,
788 ati_remote2_store_mode_mask);
790 static struct attribute *ati_remote2_attrs[] = {
791 &dev_attr_channel_mask.attr,
792 &dev_attr_mode_mask.attr,
793 NULL,
796 static struct attribute_group ati_remote2_attr_group = {
797 .attrs = ati_remote2_attrs,
800 static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id)
802 struct usb_device *udev = interface_to_usbdev(interface);
803 struct usb_host_interface *alt = interface->cur_altsetting;
804 struct ati_remote2 *ar2;
805 int r;
807 if (alt->desc.bInterfaceNumber)
808 return -ENODEV;
810 ar2 = kzalloc(sizeof (struct ati_remote2), GFP_KERNEL);
811 if (!ar2)
812 return -ENOMEM;
814 ar2->udev = udev;
816 ar2->intf[0] = interface;
817 ar2->ep[0] = &alt->endpoint[0].desc;
819 ar2->intf[1] = usb_ifnum_to_if(udev, 1);
820 r = usb_driver_claim_interface(&ati_remote2_driver, ar2->intf[1], ar2);
821 if (r)
822 goto fail1;
823 alt = ar2->intf[1]->cur_altsetting;
824 ar2->ep[1] = &alt->endpoint[0].desc;
826 r = ati_remote2_urb_init(ar2);
827 if (r)
828 goto fail2;
830 ar2->channel_mask = channel_mask;
831 ar2->mode_mask = mode_mask;
833 r = ati_remote2_setup(ar2, ar2->channel_mask);
834 if (r)
835 goto fail2;
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 = sysfs_create_group(&udev->dev.kobj, &ati_remote2_attr_group);
843 if (r)
844 goto fail2;
846 r = ati_remote2_input_init(ar2);
847 if (r)
848 goto fail3;
850 usb_set_intfdata(interface, ar2);
852 interface->needs_remote_wakeup = 1;
854 return 0;
856 fail3:
857 sysfs_remove_group(&udev->dev.kobj, &ati_remote2_attr_group);
858 fail2:
859 ati_remote2_urb_cleanup(ar2);
860 usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
861 fail1:
862 kfree(ar2);
864 return r;
867 static void ati_remote2_disconnect(struct usb_interface *interface)
869 struct ati_remote2 *ar2;
870 struct usb_host_interface *alt = interface->cur_altsetting;
872 if (alt->desc.bInterfaceNumber)
873 return;
875 ar2 = usb_get_intfdata(interface);
876 usb_set_intfdata(interface, NULL);
878 input_unregister_device(ar2->idev);
880 sysfs_remove_group(&ar2->udev->dev.kobj, &ati_remote2_attr_group);
882 ati_remote2_urb_cleanup(ar2);
884 usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
886 kfree(ar2);
889 static int ati_remote2_suspend(struct usb_interface *interface,
890 pm_message_t message)
892 struct ati_remote2 *ar2;
893 struct usb_host_interface *alt = interface->cur_altsetting;
895 if (alt->desc.bInterfaceNumber)
896 return 0;
898 ar2 = usb_get_intfdata(interface);
900 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
902 mutex_lock(&ati_remote2_mutex);
904 if (ar2->flags & ATI_REMOTE2_OPENED)
905 ati_remote2_kill_urbs(ar2);
907 ar2->flags |= ATI_REMOTE2_SUSPENDED;
909 mutex_unlock(&ati_remote2_mutex);
911 return 0;
914 static int ati_remote2_resume(struct usb_interface *interface)
916 struct ati_remote2 *ar2;
917 struct usb_host_interface *alt = interface->cur_altsetting;
918 int r = 0;
920 if (alt->desc.bInterfaceNumber)
921 return 0;
923 ar2 = usb_get_intfdata(interface);
925 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
927 mutex_lock(&ati_remote2_mutex);
929 if (ar2->flags & ATI_REMOTE2_OPENED)
930 r = ati_remote2_submit_urbs(ar2);
932 if (!r)
933 ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
935 mutex_unlock(&ati_remote2_mutex);
937 return r;
940 static int ati_remote2_reset_resume(struct usb_interface *interface)
942 struct ati_remote2 *ar2;
943 struct usb_host_interface *alt = interface->cur_altsetting;
944 int r = 0;
946 if (alt->desc.bInterfaceNumber)
947 return 0;
949 ar2 = usb_get_intfdata(interface);
951 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
953 mutex_lock(&ati_remote2_mutex);
955 r = ati_remote2_setup(ar2, ar2->channel_mask);
956 if (r)
957 goto out;
959 if (ar2->flags & ATI_REMOTE2_OPENED)
960 r = ati_remote2_submit_urbs(ar2);
962 if (!r)
963 ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
965 out:
966 mutex_unlock(&ati_remote2_mutex);
968 return r;
971 static int ati_remote2_pre_reset(struct usb_interface *interface)
973 struct ati_remote2 *ar2;
974 struct usb_host_interface *alt = interface->cur_altsetting;
976 if (alt->desc.bInterfaceNumber)
977 return 0;
979 ar2 = usb_get_intfdata(interface);
981 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
983 mutex_lock(&ati_remote2_mutex);
985 if (ar2->flags == ATI_REMOTE2_OPENED)
986 ati_remote2_kill_urbs(ar2);
988 return 0;
991 static int ati_remote2_post_reset(struct usb_interface *interface)
993 struct ati_remote2 *ar2;
994 struct usb_host_interface *alt = interface->cur_altsetting;
995 int r = 0;
997 if (alt->desc.bInterfaceNumber)
998 return 0;
1000 ar2 = usb_get_intfdata(interface);
1002 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
1004 if (ar2->flags == ATI_REMOTE2_OPENED)
1005 r = ati_remote2_submit_urbs(ar2);
1007 mutex_unlock(&ati_remote2_mutex);
1009 return r;
1012 static int __init ati_remote2_init(void)
1014 int r;
1016 r = usb_register(&ati_remote2_driver);
1017 if (r)
1018 printk(KERN_ERR "ati_remote2: usb_register() = %d\n", r);
1019 else
1020 printk(KERN_INFO "ati_remote2: " DRIVER_DESC " " DRIVER_VERSION "\n");
1022 return r;
1025 static void __exit ati_remote2_exit(void)
1027 usb_deregister(&ati_remote2_driver);
1030 module_init(ati_remote2_init);
1031 module_exit(ati_remote2_exit);