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12#include <linux/usb/input.h>
13#include <linux/slab.h>
14#include <linux/module.h>
15
16#define DRIVER_DESC "ATI/Philips USB RF remote driver"
17#define DRIVER_VERSION "0.3"
18
19MODULE_DESCRIPTION(DRIVER_DESC);
20MODULE_VERSION(DRIVER_VERSION);
21MODULE_AUTHOR("Ville Syrjala <syrjala@sci.fi>");
22MODULE_LICENSE("GPL");
23
24
25
26
27
28
29
30
31
32
33
34
35
36enum {
37 ATI_REMOTE2_MAX_CHANNEL_MASK = 0xFFFF,
38 ATI_REMOTE2_MAX_MODE_MASK = 0x1F,
39};
40
41static int ati_remote2_set_mask(const char *val,
42 const struct kernel_param *kp,
43 unsigned int max)
44{
45 unsigned int mask;
46 int ret;
47
48 if (!val)
49 return -EINVAL;
50
51 ret = kstrtouint(val, 0, &mask);
52 if (ret)
53 return ret;
54
55 if (mask & ~max)
56 return -EINVAL;
57
58 *(unsigned int *)kp->arg = mask;
59
60 return 0;
61}
62
63static int ati_remote2_set_channel_mask(const char *val,
64 const struct kernel_param *kp)
65{
66 pr_debug("%s()\n", __func__);
67
68 return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_CHANNEL_MASK);
69}
70
71static int ati_remote2_get_channel_mask(char *buffer,
72 const struct kernel_param *kp)
73{
74 pr_debug("%s()\n", __func__);
75
76 return sprintf(buffer, "0x%04x", *(unsigned int *)kp->arg);
77}
78
79static int ati_remote2_set_mode_mask(const char *val,
80 const struct kernel_param *kp)
81{
82 pr_debug("%s()\n", __func__);
83
84 return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_MODE_MASK);
85}
86
87static int ati_remote2_get_mode_mask(char *buffer,
88 const struct kernel_param *kp)
89{
90 pr_debug("%s()\n", __func__);
91
92 return sprintf(buffer, "0x%02x", *(unsigned int *)kp->arg);
93}
94
95static unsigned int channel_mask = ATI_REMOTE2_MAX_CHANNEL_MASK;
96#define param_check_channel_mask(name, p) __param_check(name, p, unsigned int)
97static struct kernel_param_ops param_ops_channel_mask = {
98 .set = ati_remote2_set_channel_mask,
99 .get = ati_remote2_get_channel_mask,
100};
101module_param(channel_mask, channel_mask, 0644);
102MODULE_PARM_DESC(channel_mask, "Bitmask of channels to accept <15:Channel16>...<1:Channel2><0:Channel1>");
103
104static unsigned int mode_mask = ATI_REMOTE2_MAX_MODE_MASK;
105#define param_check_mode_mask(name, p) __param_check(name, p, unsigned int)
106static struct kernel_param_ops param_ops_mode_mask = {
107 .set = ati_remote2_set_mode_mask,
108 .get = ati_remote2_get_mode_mask,
109};
110module_param(mode_mask, mode_mask, 0644);
111MODULE_PARM_DESC(mode_mask, "Bitmask of modes to accept <4:PC><3:AUX4><2:AUX3><1:AUX2><0:AUX1>");
112
113static struct usb_device_id ati_remote2_id_table[] = {
114 { USB_DEVICE(0x0471, 0x0602) },
115 { }
116};
117MODULE_DEVICE_TABLE(usb, ati_remote2_id_table);
118
119static DEFINE_MUTEX(ati_remote2_mutex);
120
121enum {
122 ATI_REMOTE2_OPENED = 0x1,
123 ATI_REMOTE2_SUSPENDED = 0x2,
124};
125
126enum {
127 ATI_REMOTE2_AUX1,
128 ATI_REMOTE2_AUX2,
129 ATI_REMOTE2_AUX3,
130 ATI_REMOTE2_AUX4,
131 ATI_REMOTE2_PC,
132 ATI_REMOTE2_MODES,
133};
134
135static const struct {
136 u8 hw_code;
137 u16 keycode;
138} ati_remote2_key_table[] = {
139 { 0x00, KEY_0 },
140 { 0x01, KEY_1 },
141 { 0x02, KEY_2 },
142 { 0x03, KEY_3 },
143 { 0x04, KEY_4 },
144 { 0x05, KEY_5 },
145 { 0x06, KEY_6 },
146 { 0x07, KEY_7 },
147 { 0x08, KEY_8 },
148 { 0x09, KEY_9 },
149 { 0x0c, KEY_POWER },
150 { 0x0d, KEY_MUTE },
151 { 0x10, KEY_VOLUMEUP },
152 { 0x11, KEY_VOLUMEDOWN },
153 { 0x20, KEY_CHANNELUP },
154 { 0x21, KEY_CHANNELDOWN },
155 { 0x28, KEY_FORWARD },
156 { 0x29, KEY_REWIND },
157 { 0x2c, KEY_PLAY },
158 { 0x30, KEY_PAUSE },
159 { 0x31, KEY_STOP },
160 { 0x37, KEY_RECORD },
161 { 0x38, KEY_DVD },
162 { 0x39, KEY_TV },
163 { 0x3f, KEY_PROG1 },
164 { 0x54, KEY_MENU },
165 { 0x58, KEY_UP },
166 { 0x59, KEY_DOWN },
167 { 0x5a, KEY_LEFT },
168 { 0x5b, KEY_RIGHT },
169 { 0x5c, KEY_OK },
170 { 0x78, KEY_A },
171 { 0x79, KEY_B },
172 { 0x7a, KEY_C },
173 { 0x7b, KEY_D },
174 { 0x7c, KEY_E },
175 { 0x7d, KEY_F },
176 { 0x82, KEY_ENTER },
177 { 0x8e, KEY_VENDOR },
178 { 0x96, KEY_COFFEE },
179 { 0xa9, BTN_LEFT },
180 { 0xaa, BTN_RIGHT },
181 { 0xbe, KEY_QUESTION },
182 { 0xd0, KEY_EDIT },
183 { 0xd5, KEY_FRONT },
184 { 0xf9, KEY_INFO },
185};
186
187struct ati_remote2 {
188 struct input_dev *idev;
189 struct usb_device *udev;
190
191 struct usb_interface *intf[2];
192 struct usb_endpoint_descriptor *ep[2];
193 struct urb *urb[2];
194 void *buf[2];
195 dma_addr_t buf_dma[2];
196
197 unsigned long jiffies;
198 int mode;
199
200 char name[64];
201 char phys[64];
202
203
204 u16 keycode[ATI_REMOTE2_MODES][ARRAY_SIZE(ati_remote2_key_table)];
205
206 unsigned int flags;
207
208 unsigned int channel_mask;
209 unsigned int mode_mask;
210};
211
212static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id);
213static void ati_remote2_disconnect(struct usb_interface *interface);
214static int ati_remote2_suspend(struct usb_interface *interface, pm_message_t message);
215static int ati_remote2_resume(struct usb_interface *interface);
216static int ati_remote2_reset_resume(struct usb_interface *interface);
217static int ati_remote2_pre_reset(struct usb_interface *interface);
218static int ati_remote2_post_reset(struct usb_interface *interface);
219
220static struct usb_driver ati_remote2_driver = {
221 .name = "ati_remote2",
222 .probe = ati_remote2_probe,
223 .disconnect = ati_remote2_disconnect,
224 .id_table = ati_remote2_id_table,
225 .suspend = ati_remote2_suspend,
226 .resume = ati_remote2_resume,
227 .reset_resume = ati_remote2_reset_resume,
228 .pre_reset = ati_remote2_pre_reset,
229 .post_reset = ati_remote2_post_reset,
230 .supports_autosuspend = 1,
231};
232
233static int ati_remote2_submit_urbs(struct ati_remote2 *ar2)
234{
235 int r;
236
237 r = usb_submit_urb(ar2->urb[0], GFP_KERNEL);
238 if (r) {
239 dev_err(&ar2->intf[0]->dev,
240 "%s(): usb_submit_urb() = %d\n", __func__, r);
241 return r;
242 }
243 r = usb_submit_urb(ar2->urb[1], GFP_KERNEL);
244 if (r) {
245 usb_kill_urb(ar2->urb[0]);
246 dev_err(&ar2->intf[1]->dev,
247 "%s(): usb_submit_urb() = %d\n", __func__, r);
248 return r;
249 }
250
251 return 0;
252}
253
254static void ati_remote2_kill_urbs(struct ati_remote2 *ar2)
255{
256 usb_kill_urb(ar2->urb[1]);
257 usb_kill_urb(ar2->urb[0]);
258}
259
260static int ati_remote2_open(struct input_dev *idev)
261{
262 struct ati_remote2 *ar2 = input_get_drvdata(idev);
263 int r;
264
265 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
266
267 r = usb_autopm_get_interface(ar2->intf[0]);
268 if (r) {
269 dev_err(&ar2->intf[0]->dev,
270 "%s(): usb_autopm_get_interface() = %d\n", __func__, r);
271 goto fail1;
272 }
273
274 mutex_lock(&ati_remote2_mutex);
275
276 if (!(ar2->flags & ATI_REMOTE2_SUSPENDED)) {
277 r = ati_remote2_submit_urbs(ar2);
278 if (r)
279 goto fail2;
280 }
281
282 ar2->flags |= ATI_REMOTE2_OPENED;
283
284 mutex_unlock(&ati_remote2_mutex);
285
286 usb_autopm_put_interface(ar2->intf[0]);
287
288 return 0;
289
290 fail2:
291 mutex_unlock(&ati_remote2_mutex);
292 usb_autopm_put_interface(ar2->intf[0]);
293 fail1:
294 return r;
295}
296
297static void ati_remote2_close(struct input_dev *idev)
298{
299 struct ati_remote2 *ar2 = input_get_drvdata(idev);
300
301 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
302
303 mutex_lock(&ati_remote2_mutex);
304
305 if (!(ar2->flags & ATI_REMOTE2_SUSPENDED))
306 ati_remote2_kill_urbs(ar2);
307
308 ar2->flags &= ~ATI_REMOTE2_OPENED;
309
310 mutex_unlock(&ati_remote2_mutex);
311}
312
313static void ati_remote2_input_mouse(struct ati_remote2 *ar2)
314{
315 struct input_dev *idev = ar2->idev;
316 u8 *data = ar2->buf[0];
317 int channel, mode;
318
319 channel = data[0] >> 4;
320
321 if (!((1 << channel) & ar2->channel_mask))
322 return;
323
324 mode = data[0] & 0x0F;
325
326 if (mode > ATI_REMOTE2_PC) {
327 dev_err(&ar2->intf[0]->dev,
328 "Unknown mode byte (%02x %02x %02x %02x)\n",
329 data[3], data[2], data[1], data[0]);
330 return;
331 }
332
333 if (!((1 << mode) & ar2->mode_mask))
334 return;
335
336 input_event(idev, EV_REL, REL_X, (s8) data[1]);
337 input_event(idev, EV_REL, REL_Y, (s8) data[2]);
338 input_sync(idev);
339}
340
341static int ati_remote2_lookup(unsigned int hw_code)
342{
343 int i;
344
345 for (i = 0; i < ARRAY_SIZE(ati_remote2_key_table); i++)
346 if (ati_remote2_key_table[i].hw_code == hw_code)
347 return i;
348
349 return -1;
350}
351
352static void ati_remote2_input_key(struct ati_remote2 *ar2)
353{
354 struct input_dev *idev = ar2->idev;
355 u8 *data = ar2->buf[1];
356 int channel, mode, hw_code, index;
357
358 channel = data[0] >> 4;
359
360 if (!((1 << channel) & ar2->channel_mask))
361 return;
362
363 mode = data[0] & 0x0F;
364
365 if (mode > ATI_REMOTE2_PC) {
366 dev_err(&ar2->intf[1]->dev,
367 "Unknown mode byte (%02x %02x %02x %02x)\n",
368 data[3], data[2], data[1], data[0]);
369 return;
370 }
371
372 hw_code = data[2];
373 if (hw_code == 0x3f) {
374
375
376
377
378
379
380
381 if (ar2->mode == mode)
382 return;
383
384 if (data[1] == 0)
385 ar2->mode = mode;
386 }
387
388 if (!((1 << mode) & ar2->mode_mask))
389 return;
390
391 index = ati_remote2_lookup(hw_code);
392 if (index < 0) {
393 dev_err(&ar2->intf[1]->dev,
394 "Unknown code byte (%02x %02x %02x %02x)\n",
395 data[3], data[2], data[1], data[0]);
396 return;
397 }
398
399 switch (data[1]) {
400 case 0:
401 break;
402 case 1:
403 ar2->jiffies = jiffies + msecs_to_jiffies(idev->rep[REP_DELAY]);
404 break;
405 case 2:
406
407
408 if (ar2->keycode[mode][index] == BTN_LEFT ||
409 ar2->keycode[mode][index] == BTN_RIGHT)
410 return;
411
412 if (!time_after_eq(jiffies, ar2->jiffies))
413 return;
414
415 ar2->jiffies = jiffies + msecs_to_jiffies(idev->rep[REP_PERIOD]);
416 break;
417 default:
418 dev_err(&ar2->intf[1]->dev,
419 "Unknown state byte (%02x %02x %02x %02x)\n",
420 data[3], data[2], data[1], data[0]);
421 return;
422 }
423
424 input_event(idev, EV_KEY, ar2->keycode[mode][index], data[1]);
425 input_sync(idev);
426}
427
428static void ati_remote2_complete_mouse(struct urb *urb)
429{
430 struct ati_remote2 *ar2 = urb->context;
431 int r;
432
433 switch (urb->status) {
434 case 0:
435 usb_mark_last_busy(ar2->udev);
436 ati_remote2_input_mouse(ar2);
437 break;
438 case -ENOENT:
439 case -EILSEQ:
440 case -ECONNRESET:
441 case -ESHUTDOWN:
442 dev_dbg(&ar2->intf[0]->dev,
443 "%s(): urb status = %d\n", __func__, urb->status);
444 return;
445 default:
446 usb_mark_last_busy(ar2->udev);
447 dev_err(&ar2->intf[0]->dev,
448 "%s(): urb status = %d\n", __func__, urb->status);
449 }
450
451 r = usb_submit_urb(urb, GFP_ATOMIC);
452 if (r)
453 dev_err(&ar2->intf[0]->dev,
454 "%s(): usb_submit_urb() = %d\n", __func__, r);
455}
456
457static void ati_remote2_complete_key(struct urb *urb)
458{
459 struct ati_remote2 *ar2 = urb->context;
460 int r;
461
462 switch (urb->status) {
463 case 0:
464 usb_mark_last_busy(ar2->udev);
465 ati_remote2_input_key(ar2);
466 break;
467 case -ENOENT:
468 case -EILSEQ:
469 case -ECONNRESET:
470 case -ESHUTDOWN:
471 dev_dbg(&ar2->intf[1]->dev,
472 "%s(): urb status = %d\n", __func__, urb->status);
473 return;
474 default:
475 usb_mark_last_busy(ar2->udev);
476 dev_err(&ar2->intf[1]->dev,
477 "%s(): urb status = %d\n", __func__, urb->status);
478 }
479
480 r = usb_submit_urb(urb, GFP_ATOMIC);
481 if (r)
482 dev_err(&ar2->intf[1]->dev,
483 "%s(): usb_submit_urb() = %d\n", __func__, r);
484}
485
486static int ati_remote2_getkeycode(struct input_dev *idev,
487 struct input_keymap_entry *ke)
488{
489 struct ati_remote2 *ar2 = input_get_drvdata(idev);
490 unsigned int mode;
491 int offset;
492 unsigned int index;
493 unsigned int scancode;
494
495 if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
496 index = ke->index;
497 if (index >= ATI_REMOTE2_MODES *
498 ARRAY_SIZE(ati_remote2_key_table))
499 return -EINVAL;
500
501 mode = ke->index / ARRAY_SIZE(ati_remote2_key_table);
502 offset = ke->index % ARRAY_SIZE(ati_remote2_key_table);
503 scancode = (mode << 8) + ati_remote2_key_table[offset].hw_code;
504 } else {
505 if (input_scancode_to_scalar(ke, &scancode))
506 return -EINVAL;
507
508 mode = scancode >> 8;
509 if (mode > ATI_REMOTE2_PC)
510 return -EINVAL;
511
512 offset = ati_remote2_lookup(scancode & 0xff);
513 if (offset < 0)
514 return -EINVAL;
515
516 index = mode * ARRAY_SIZE(ati_remote2_key_table) + offset;
517 }
518
519 ke->keycode = ar2->keycode[mode][offset];
520 ke->len = sizeof(scancode);
521 memcpy(&ke->scancode, &scancode, sizeof(scancode));
522 ke->index = index;
523
524 return 0;
525}
526
527static int ati_remote2_setkeycode(struct input_dev *idev,
528 const struct input_keymap_entry *ke,
529 unsigned int *old_keycode)
530{
531 struct ati_remote2 *ar2 = input_get_drvdata(idev);
532 unsigned int mode;
533 int offset;
534 unsigned int index;
535 unsigned int scancode;
536
537 if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
538 if (ke->index >= ATI_REMOTE2_MODES *
539 ARRAY_SIZE(ati_remote2_key_table))
540 return -EINVAL;
541
542 mode = ke->index / ARRAY_SIZE(ati_remote2_key_table);
543 offset = ke->index % ARRAY_SIZE(ati_remote2_key_table);
544 } else {
545 if (input_scancode_to_scalar(ke, &scancode))
546 return -EINVAL;
547
548 mode = scancode >> 8;
549 if (mode > ATI_REMOTE2_PC)
550 return -EINVAL;
551
552 offset = ati_remote2_lookup(scancode & 0xff);
553 if (offset < 0)
554 return -EINVAL;
555 }
556
557 *old_keycode = ar2->keycode[mode][offset];
558 ar2->keycode[mode][offset] = ke->keycode;
559 __set_bit(ke->keycode, idev->keybit);
560
561 for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) {
562 for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) {
563 if (ar2->keycode[mode][index] == *old_keycode)
564 return 0;
565 }
566 }
567
568 __clear_bit(*old_keycode, idev->keybit);
569
570 return 0;
571}
572
573static int ati_remote2_input_init(struct ati_remote2 *ar2)
574{
575 struct input_dev *idev;
576 int index, mode, retval;
577
578 idev = input_allocate_device();
579 if (!idev)
580 return -ENOMEM;
581
582 ar2->idev = idev;
583 input_set_drvdata(idev, ar2);
584
585 idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | BIT_MASK(EV_REL);
586 idev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
587 BIT_MASK(BTN_RIGHT);
588 idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
589
590 for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) {
591 for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) {
592 ar2->keycode[mode][index] = ati_remote2_key_table[index].keycode;
593 __set_bit(ar2->keycode[mode][index], idev->keybit);
594 }
595 }
596
597
598 index = ati_remote2_lookup(0x3f);
599 ar2->keycode[ATI_REMOTE2_AUX1][index] = KEY_PROG1;
600 ar2->keycode[ATI_REMOTE2_AUX2][index] = KEY_PROG2;
601 ar2->keycode[ATI_REMOTE2_AUX3][index] = KEY_PROG3;
602 ar2->keycode[ATI_REMOTE2_AUX4][index] = KEY_PROG4;
603 ar2->keycode[ATI_REMOTE2_PC][index] = KEY_PC;
604 __set_bit(KEY_PROG1, idev->keybit);
605 __set_bit(KEY_PROG2, idev->keybit);
606 __set_bit(KEY_PROG3, idev->keybit);
607 __set_bit(KEY_PROG4, idev->keybit);
608 __set_bit(KEY_PC, idev->keybit);
609
610 idev->rep[REP_DELAY] = 250;
611 idev->rep[REP_PERIOD] = 33;
612
613 idev->open = ati_remote2_open;
614 idev->close = ati_remote2_close;
615
616 idev->getkeycode = ati_remote2_getkeycode;
617 idev->setkeycode = ati_remote2_setkeycode;
618
619 idev->name = ar2->name;
620 idev->phys = ar2->phys;
621
622 usb_to_input_id(ar2->udev, &idev->id);
623 idev->dev.parent = &ar2->udev->dev;
624
625 retval = input_register_device(idev);
626 if (retval)
627 input_free_device(idev);
628
629 return retval;
630}
631
632static int ati_remote2_urb_init(struct ati_remote2 *ar2)
633{
634 struct usb_device *udev = ar2->udev;
635 int i, pipe, maxp;
636
637 for (i = 0; i < 2; i++) {
638 ar2->buf[i] = usb_alloc_coherent(udev, 4, GFP_KERNEL, &ar2->buf_dma[i]);
639 if (!ar2->buf[i])
640 return -ENOMEM;
641
642 ar2->urb[i] = usb_alloc_urb(0, GFP_KERNEL);
643 if (!ar2->urb[i])
644 return -ENOMEM;
645
646 pipe = usb_rcvintpipe(udev, ar2->ep[i]->bEndpointAddress);
647 maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
648 maxp = maxp > 4 ? 4 : maxp;
649
650 usb_fill_int_urb(ar2->urb[i], udev, pipe, ar2->buf[i], maxp,
651 i ? ati_remote2_complete_key : ati_remote2_complete_mouse,
652 ar2, ar2->ep[i]->bInterval);
653 ar2->urb[i]->transfer_dma = ar2->buf_dma[i];
654 ar2->urb[i]->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
655 }
656
657 return 0;
658}
659
660static void ati_remote2_urb_cleanup(struct ati_remote2 *ar2)
661{
662 int i;
663
664 for (i = 0; i < 2; i++) {
665 usb_free_urb(ar2->urb[i]);
666 usb_free_coherent(ar2->udev, 4, ar2->buf[i], ar2->buf_dma[i]);
667 }
668}
669
670static int ati_remote2_setup(struct ati_remote2 *ar2, unsigned int ch_mask)
671{
672 int r, i, channel;
673
674
675
676
677
678
679
680
681
682
683 channel = 0;
684 for (i = 0; i < 16; i++) {
685 if ((1 << i) & ch_mask) {
686 if (!(~(1 << i) & ch_mask))
687 channel = i + 1;
688 break;
689 }
690 }
691
692 r = usb_control_msg(ar2->udev, usb_sndctrlpipe(ar2->udev, 0),
693 0x20,
694 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
695 channel, 0x0, NULL, 0, USB_CTRL_SET_TIMEOUT);
696 if (r) {
697 dev_err(&ar2->udev->dev, "%s - failed to set channel due to error: %d\n",
698 __func__, r);
699 return r;
700 }
701
702 return 0;
703}
704
705static ssize_t ati_remote2_show_channel_mask(struct device *dev,
706 struct device_attribute *attr,
707 char *buf)
708{
709 struct usb_device *udev = to_usb_device(dev);
710 struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
711 struct ati_remote2 *ar2 = usb_get_intfdata(intf);
712
713 return sprintf(buf, "0x%04x\n", ar2->channel_mask);
714}
715
716static ssize_t ati_remote2_store_channel_mask(struct device *dev,
717 struct device_attribute *attr,
718 const char *buf, size_t count)
719{
720 struct usb_device *udev = to_usb_device(dev);
721 struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
722 struct ati_remote2 *ar2 = usb_get_intfdata(intf);
723 unsigned int mask;
724 int r;
725
726 r = kstrtouint(buf, 0, &mask);
727 if (r)
728 return r;
729
730 if (mask & ~ATI_REMOTE2_MAX_CHANNEL_MASK)
731 return -EINVAL;
732
733 r = usb_autopm_get_interface(ar2->intf[0]);
734 if (r) {
735 dev_err(&ar2->intf[0]->dev,
736 "%s(): usb_autopm_get_interface() = %d\n", __func__, r);
737 return r;
738 }
739
740 mutex_lock(&ati_remote2_mutex);
741
742 if (mask != ar2->channel_mask) {
743 r = ati_remote2_setup(ar2, mask);
744 if (!r)
745 ar2->channel_mask = mask;
746 }
747
748 mutex_unlock(&ati_remote2_mutex);
749
750 usb_autopm_put_interface(ar2->intf[0]);
751
752 return r ? r : count;
753}
754
755static ssize_t ati_remote2_show_mode_mask(struct device *dev,
756 struct device_attribute *attr,
757 char *buf)
758{
759 struct usb_device *udev = to_usb_device(dev);
760 struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
761 struct ati_remote2 *ar2 = usb_get_intfdata(intf);
762
763 return sprintf(buf, "0x%02x\n", ar2->mode_mask);
764}
765
766static ssize_t ati_remote2_store_mode_mask(struct device *dev,
767 struct device_attribute *attr,
768 const char *buf, size_t count)
769{
770 struct usb_device *udev = to_usb_device(dev);
771 struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
772 struct ati_remote2 *ar2 = usb_get_intfdata(intf);
773 unsigned int mask;
774 int err;
775
776 err = kstrtouint(buf, 0, &mask);
777 if (err)
778 return err;
779
780 if (mask & ~ATI_REMOTE2_MAX_MODE_MASK)
781 return -EINVAL;
782
783 ar2->mode_mask = mask;
784
785 return count;
786}
787
788static DEVICE_ATTR(channel_mask, 0644, ati_remote2_show_channel_mask,
789 ati_remote2_store_channel_mask);
790
791static DEVICE_ATTR(mode_mask, 0644, ati_remote2_show_mode_mask,
792 ati_remote2_store_mode_mask);
793
794static struct attribute *ati_remote2_attrs[] = {
795 &dev_attr_channel_mask.attr,
796 &dev_attr_mode_mask.attr,
797 NULL,
798};
799
800static struct attribute_group ati_remote2_attr_group = {
801 .attrs = ati_remote2_attrs,
802};
803
804static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id)
805{
806 struct usb_device *udev = interface_to_usbdev(interface);
807 struct usb_host_interface *alt = interface->cur_altsetting;
808 struct ati_remote2 *ar2;
809 int r;
810
811 if (alt->desc.bInterfaceNumber)
812 return -ENODEV;
813
814 ar2 = kzalloc(sizeof (struct ati_remote2), GFP_KERNEL);
815 if (!ar2)
816 return -ENOMEM;
817
818 ar2->udev = udev;
819
820 ar2->intf[0] = interface;
821 ar2->ep[0] = &alt->endpoint[0].desc;
822
823 ar2->intf[1] = usb_ifnum_to_if(udev, 1);
824 r = usb_driver_claim_interface(&ati_remote2_driver, ar2->intf[1], ar2);
825 if (r)
826 goto fail1;
827 alt = ar2->intf[1]->cur_altsetting;
828 ar2->ep[1] = &alt->endpoint[0].desc;
829
830 r = ati_remote2_urb_init(ar2);
831 if (r)
832 goto fail2;
833
834 ar2->channel_mask = channel_mask;
835 ar2->mode_mask = mode_mask;
836
837 r = ati_remote2_setup(ar2, ar2->channel_mask);
838 if (r)
839 goto fail2;
840
841 usb_make_path(udev, ar2->phys, sizeof(ar2->phys));
842 strlcat(ar2->phys, "/input0", sizeof(ar2->phys));
843
844 strlcat(ar2->name, "ATI Remote Wonder II", sizeof(ar2->name));
845
846 r = sysfs_create_group(&udev->dev.kobj, &ati_remote2_attr_group);
847 if (r)
848 goto fail2;
849
850 r = ati_remote2_input_init(ar2);
851 if (r)
852 goto fail3;
853
854 usb_set_intfdata(interface, ar2);
855
856 interface->needs_remote_wakeup = 1;
857
858 return 0;
859
860 fail3:
861 sysfs_remove_group(&udev->dev.kobj, &ati_remote2_attr_group);
862 fail2:
863 ati_remote2_urb_cleanup(ar2);
864 usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
865 fail1:
866 kfree(ar2);
867
868 return r;
869}
870
871static void ati_remote2_disconnect(struct usb_interface *interface)
872{
873 struct ati_remote2 *ar2;
874 struct usb_host_interface *alt = interface->cur_altsetting;
875
876 if (alt->desc.bInterfaceNumber)
877 return;
878
879 ar2 = usb_get_intfdata(interface);
880 usb_set_intfdata(interface, NULL);
881
882 input_unregister_device(ar2->idev);
883
884 sysfs_remove_group(&ar2->udev->dev.kobj, &ati_remote2_attr_group);
885
886 ati_remote2_urb_cleanup(ar2);
887
888 usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
889
890 kfree(ar2);
891}
892
893static int ati_remote2_suspend(struct usb_interface *interface,
894 pm_message_t message)
895{
896 struct ati_remote2 *ar2;
897 struct usb_host_interface *alt = interface->cur_altsetting;
898
899 if (alt->desc.bInterfaceNumber)
900 return 0;
901
902 ar2 = usb_get_intfdata(interface);
903
904 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
905
906 mutex_lock(&ati_remote2_mutex);
907
908 if (ar2->flags & ATI_REMOTE2_OPENED)
909 ati_remote2_kill_urbs(ar2);
910
911 ar2->flags |= ATI_REMOTE2_SUSPENDED;
912
913 mutex_unlock(&ati_remote2_mutex);
914
915 return 0;
916}
917
918static int ati_remote2_resume(struct usb_interface *interface)
919{
920 struct ati_remote2 *ar2;
921 struct usb_host_interface *alt = interface->cur_altsetting;
922 int r = 0;
923
924 if (alt->desc.bInterfaceNumber)
925 return 0;
926
927 ar2 = usb_get_intfdata(interface);
928
929 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
930
931 mutex_lock(&ati_remote2_mutex);
932
933 if (ar2->flags & ATI_REMOTE2_OPENED)
934 r = ati_remote2_submit_urbs(ar2);
935
936 if (!r)
937 ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
938
939 mutex_unlock(&ati_remote2_mutex);
940
941 return r;
942}
943
944static int ati_remote2_reset_resume(struct usb_interface *interface)
945{
946 struct ati_remote2 *ar2;
947 struct usb_host_interface *alt = interface->cur_altsetting;
948 int r = 0;
949
950 if (alt->desc.bInterfaceNumber)
951 return 0;
952
953 ar2 = usb_get_intfdata(interface);
954
955 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
956
957 mutex_lock(&ati_remote2_mutex);
958
959 r = ati_remote2_setup(ar2, ar2->channel_mask);
960 if (r)
961 goto out;
962
963 if (ar2->flags & ATI_REMOTE2_OPENED)
964 r = ati_remote2_submit_urbs(ar2);
965
966 if (!r)
967 ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
968
969 out:
970 mutex_unlock(&ati_remote2_mutex);
971
972 return r;
973}
974
975static int ati_remote2_pre_reset(struct usb_interface *interface)
976{
977 struct ati_remote2 *ar2;
978 struct usb_host_interface *alt = interface->cur_altsetting;
979
980 if (alt->desc.bInterfaceNumber)
981 return 0;
982
983 ar2 = usb_get_intfdata(interface);
984
985 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
986
987 mutex_lock(&ati_remote2_mutex);
988
989 if (ar2->flags == ATI_REMOTE2_OPENED)
990 ati_remote2_kill_urbs(ar2);
991
992 return 0;
993}
994
995static int ati_remote2_post_reset(struct usb_interface *interface)
996{
997 struct ati_remote2 *ar2;
998 struct usb_host_interface *alt = interface->cur_altsetting;
999 int r = 0;
1000
1001 if (alt->desc.bInterfaceNumber)
1002 return 0;
1003
1004 ar2 = usb_get_intfdata(interface);
1005
1006 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
1007
1008 if (ar2->flags == ATI_REMOTE2_OPENED)
1009 r = ati_remote2_submit_urbs(ar2);
1010
1011 mutex_unlock(&ati_remote2_mutex);
1012
1013 return r;
1014}
1015
1016module_usb_driver(ati_remote2_driver);
1017
