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[mirror_ubuntu-zesty-kernel.git] / drivers / input / misc / cm109.c
CommitLineData
c04148f9
AH		 1/*
2 * Driver for the VoIP USB phones with CM109 chipsets.
3 *
4 * Copyright (C) 2007 - 2008 Alfred E. Heggestad <aeh@db.org>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation, version 2.
9 */
10
11/*
12 * Tested devices:
13 * - Komunikate KIP1000
14 * - Genius G-talk
15 * - Allied-Telesis Corega USBPH01
16 * - ...
17 *
18 * This driver is based on the yealink.c driver
19 *
20 * Thanks to:
21 * - Authors of yealink.c
22 * - Thomas Reitmayr
23 * - Oliver Neukum for good review comments and code
24 * - Shaun Jackman <sjackman@gmail.com> for Genius G-talk keymap
25 * - Dmitry Torokhov for valuable input and review
26 *
27 * Todo:
28 * - Read/write EEPROM
29 */
30
31#include <linux/kernel.h>
32#include <linux/init.h>
33#include <linux/slab.h>
34#include <linux/module.h>
35#include <linux/moduleparam.h>
36#include <linux/rwsem.h>
37#include <linux/usb/input.h>
38
39#define CM109_DEBUG 0
40
41#define DRIVER_VERSION "20080805"
42#define DRIVER_AUTHOR "Alfred E. Heggestad"
43#define DRIVER_DESC "CM109 phone driver"
44
45static char *phone = "kip1000";
46module_param(phone, charp, S_IRUSR);
47MODULE_PARM_DESC(phone, "Phone name {kip1000, gtalk, usbph01}");
48
49enum {
50 /* HID Registers */
51 HID_IR0 = 0x00, /* Record/Playback-mute button, Volume up/down */
52 HID_IR1 = 0x01, /* GPI, generic registers or EEPROM_DATA0 */
53 HID_IR2 = 0x02, /* Generic registers or EEPROM_DATA1 */
54 HID_IR3 = 0x03, /* Generic registers or EEPROM_CTRL */
55 HID_OR0 = 0x00, /* Mapping control, buzzer, SPDIF (offset 0x04) */
56 HID_OR1 = 0x01, /* GPO - General Purpose Output */
57 HID_OR2 = 0x02, /* Set GPIO to input/output mode */
58 HID_OR3 = 0x03, /* SPDIF status channel or EEPROM_CTRL */
59
60 /* HID_IR0 */
61 RECORD_MUTE = 1 << 3,
62 PLAYBACK_MUTE = 1 << 2,
63 VOLUME_DOWN = 1 << 1,
64 VOLUME_UP = 1 << 0,
65
66 /* HID_OR0 */
67 /* bits 7-6
68 0: HID_OR1-2 are used for GPO; HID_OR0, 3 are used for buzzer
69 and SPDIF
70 1: HID_OR0-3 are used as generic HID registers
71 2: Values written to HID_OR0-3 are also mapped to MCU_CTRL,
72 EEPROM_DATA0-1, EEPROM_CTRL (see Note)
73 3: Reserved
74 */
75 HID_OR_GPO_BUZ_SPDIF = 0 << 6,
76 HID_OR_GENERIC_HID_REG = 1 << 6,
77 HID_OR_MAP_MCU_EEPROM = 2 << 6,
78
79 BUZZER_ON = 1 << 5,
80
81 /* up to 256 normal keys, up to 16 special keys */
82 KEYMAP_SIZE = 256 + 16,
83};
84
85/* CM109 protocol packet */
86struct cm109_ctl_packet {
87 u8 byte[4];
88} __attribute__ ((packed));
89
90enum { USB_PKT_LEN = sizeof(struct cm109_ctl_packet) };
91
92/* CM109 device structure */
93struct cm109_dev {
94 struct input_dev *idev; /* input device */
95 struct usb_device *udev; /* usb device */
96 struct usb_interface *intf;
97
98 /* irq input channel */
99 struct cm109_ctl_packet *irq_data;
100 dma_addr_t irq_dma;
101 struct urb *urb_irq;
102
103 /* control output channel */
104 struct cm109_ctl_packet *ctl_data;
105 dma_addr_t ctl_dma;
106 struct usb_ctrlrequest *ctl_req;
107 dma_addr_t ctl_req_dma;
108 struct urb *urb_ctl;
109 /*
110 * The 3 bitfields below are protected by ctl_submit_lock.
111 * They have to be separate since they are accessed from IRQ
112 * context.
113 */
114 unsigned irq_urb_pending:1; /* irq_urb is in flight */
115 unsigned ctl_urb_pending:1; /* ctl_urb is in flight */
116 unsigned buzzer_pending:1; /* need to issue buzz command */
117 spinlock_t ctl_submit_lock;
118
119 unsigned char buzzer_state; /* on/off */
120
121 /* flags */
122 unsigned open:1;
123 unsigned resetting:1;
124 unsigned shutdown:1;
125
126 /* This mutex protects writes to the above flags */
127 struct mutex pm_mutex;
128
129 unsigned short keymap[KEYMAP_SIZE];
130
131 char phys[64]; /* physical device path */
132 int key_code; /* last reported key */
133 int keybit; /* 0=new scan 1,2,4,8=scan columns */
134 u8 gpi; /* Cached value of GPI (high nibble) */
135};
136
137/******************************************************************************
138 * CM109 key interface
139 *****************************************************************************/
140
141static unsigned short special_keymap(int code)
142{
143 if (code > 0xff) {
144 switch (code - 0xff) {
145 case RECORD_MUTE: return KEY_MUTE;
146 case PLAYBACK_MUTE: return KEY_MUTE;
147 case VOLUME_DOWN: return KEY_VOLUMEDOWN;
148 case VOLUME_UP: return KEY_VOLUMEUP;
149 }
150 }
151 return KEY_RESERVED;
152}
153
154/* Map device buttons to internal key events.
155 *
156 * The "up" and "down" keys, are symbolised by arrows on the button.
157 * The "pickup" and "hangup" keys are symbolised by a green and red phone
158 * on the button.
159
160 Komunikate KIP1000 Keyboard Matrix
161
162 -> -- 1 -- 2 -- 3 --> GPI pin 4 (0x10)
163 | | | |
164 <- -- 4 -- 5 -- 6 --> GPI pin 5 (0x20)
165 | | | |
166 END - 7 -- 8 -- 9 --> GPI pin 6 (0x40)
167 | | | |
168 OK -- * -- 0 -- # --> GPI pin 7 (0x80)
169 | | | |
170
171 /|\ /|\ /|\ /|\
172 | | | |
173GPO
174pin: 3 2 1 0
175 0x8 0x4 0x2 0x1
176
177 */
178static unsigned short keymap_kip1000(int scancode)
179{
180 switch (scancode) { /* phone key: */
181 case 0x82: return KEY_NUMERIC_0; /* 0 */
182 case 0x14: return KEY_NUMERIC_1; /* 1 */
183 case 0x12: return KEY_NUMERIC_2; /* 2 */
184 case 0x11: return KEY_NUMERIC_3; /* 3 */
185 case 0x24: return KEY_NUMERIC_4; /* 4 */
186 case 0x22: return KEY_NUMERIC_5; /* 5 */
187 case 0x21: return KEY_NUMERIC_6; /* 6 */
188 case 0x44: return KEY_NUMERIC_7; /* 7 */
189 case 0x42: return KEY_NUMERIC_8; /* 8 */
190 case 0x41: return KEY_NUMERIC_9; /* 9 */
191 case 0x81: return KEY_NUMERIC_POUND; /* # */
192 case 0x84: return KEY_NUMERIC_STAR; /* * */
193 case 0x88: return KEY_ENTER; /* pickup */
194 case 0x48: return KEY_ESC; /* hangup */
195 case 0x28: return KEY_LEFT; /* IN */
196 case 0x18: return KEY_RIGHT; /* OUT */
197 default: return special_keymap(scancode);
198 }
199}
200
201/*
202 Contributed by Shaun Jackman <sjackman@gmail.com>
203
204 Genius G-Talk keyboard matrix
205 0 1 2 3
206 4: 0 4 8 Talk
207 5: 1 5 9 End
208 6: 2 6 # Up
209 7: 3 7 * Down
210*/
211static unsigned short keymap_gtalk(int scancode)
212{
213 switch (scancode) {
214 case 0x11: return KEY_NUMERIC_0;
215 case 0x21: return KEY_NUMERIC_1;
216 case 0x41: return KEY_NUMERIC_2;
217 case 0x81: return KEY_NUMERIC_3;
218 case 0x12: return KEY_NUMERIC_4;
219 case 0x22: return KEY_NUMERIC_5;
220 case 0x42: return KEY_NUMERIC_6;
221 case 0x82: return KEY_NUMERIC_7;
222 case 0x14: return KEY_NUMERIC_8;
223 case 0x24: return KEY_NUMERIC_9;
224 case 0x44: return KEY_NUMERIC_POUND; /* # */
225 case 0x84: return KEY_NUMERIC_STAR; /* * */
226 case 0x18: return KEY_ENTER; /* Talk (green handset) */
227 case 0x28: return KEY_ESC; /* End (red handset) */
228 case 0x48: return KEY_UP; /* Menu up (rocker switch) */
229 case 0x88: return KEY_DOWN; /* Menu down (rocker switch) */
230 default: return special_keymap(scancode);
231 }
232}
233
234/*
235 * Keymap for Allied-Telesis Corega USBPH01
236 * http://www.alliedtelesis-corega.com/2/1344/1437/1360/chprd.html
237 *
238 * Contributed by july@nat.bg
239 */
240static unsigned short keymap_usbph01(int scancode)
241{
242 switch (scancode) {
243 case 0x11: return KEY_NUMERIC_0; /* 0 */
244 case 0x21: return KEY_NUMERIC_1; /* 1 */
245 case 0x41: return KEY_NUMERIC_2; /* 2 */
246 case 0x81: return KEY_NUMERIC_3; /* 3 */
247 case 0x12: return KEY_NUMERIC_4; /* 4 */
248 case 0x22: return KEY_NUMERIC_5; /* 5 */
249 case 0x42: return KEY_NUMERIC_6; /* 6 */
250 case 0x82: return KEY_NUMERIC_7; /* 7 */
251 case 0x14: return KEY_NUMERIC_8; /* 8 */
252 case 0x24: return KEY_NUMERIC_9; /* 9 */
253 case 0x44: return KEY_NUMERIC_POUND; /* # */
254 case 0x84: return KEY_NUMERIC_STAR; /* * */
255 case 0x18: return KEY_ENTER; /* pickup */
256 case 0x28: return KEY_ESC; /* hangup */
257 case 0x48: return KEY_LEFT; /* IN */
258 case 0x88: return KEY_RIGHT; /* OUT */
259 default: return special_keymap(scancode);
260 }
261}
262
263static unsigned short (*keymap)(int) = keymap_kip1000;
264
265/*
266 * Completes a request by converting the data into events for the
267 * input subsystem.
268 */
269static void report_key(struct cm109_dev *dev, int key)
270{
271 struct input_dev *idev = dev->idev;
272
273 if (dev->key_code >= 0) {
274 /* old key up */
275 input_report_key(idev, dev->key_code, 0);
276 }
277
278 dev->key_code = key;
279 if (key >= 0) {
280 /* new valid key */
281 input_report_key(idev, key, 1);
282 }
283
284 input_sync(idev);
285}
286
287/******************************************************************************
288 * CM109 usb communication interface
289 *****************************************************************************/
290
291static void cm109_submit_buzz_toggle(struct cm109_dev *dev)
292{
293 int error;
294
295 if (dev->buzzer_state)
296 dev->ctl_data->byte[HID_OR0] |= BUZZER_ON;
297 else
298 dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON;
299
300 error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC);
301 if (error)
302 err("%s: usb_submit_urb (urb_ctl) failed %d", __func__, error);
303}
304
305/*
306 * IRQ handler
307 */
308static void cm109_urb_irq_callback(struct urb *urb)
309{
310 struct cm109_dev *dev = urb->context;
311 const int status = urb->status;
312 int error;
313
67d47641 314 dev_dbg(&urb->dev->dev, "### URB IRQ: [0x%02x 0x%02x 0x%02x 0x%02x] keybit=0x%02x",
c04148f9
AH		 315 dev->irq_data->byte[0],
316 dev->irq_data->byte[1],
317 dev->irq_data->byte[2],
318 dev->irq_data->byte[3],
319 dev->keybit);
c04148f9
AH		 320
321 if (status) {
322 if (status == -ESHUTDOWN)
323 return;
324 err("%s: urb status %d", __func__, status);
325 }
326
327 /* Special keys */
328 if (dev->irq_data->byte[HID_IR0] & 0x0f) {
329 const int code = (dev->irq_data->byte[HID_IR0] & 0x0f);
330 report_key(dev, dev->keymap[0xff + code]);
331 }
332
333 /* Scan key column */
334 if (dev->keybit == 0xf) {
335
336 /* Any changes ? */
337 if ((dev->gpi & 0xf0) == (dev->irq_data->byte[HID_IR1] & 0xf0))
338 goto out;
339
340 dev->gpi = dev->irq_data->byte[HID_IR1] & 0xf0;
341 dev->keybit = 0x1;
342 } else {
343 report_key(dev, dev->keymap[dev->irq_data->byte[HID_IR1]]);
344
345 dev->keybit <<= 1;
346 if (dev->keybit > 0x8)
347 dev->keybit = 0xf;
348 }
349
350 out:
351
352 spin_lock(&dev->ctl_submit_lock);
353
354 dev->irq_urb_pending = 0;
355
356 if (likely(!dev->shutdown)) {
357
358 if (dev->buzzer_state)
359 dev->ctl_data->byte[HID_OR0] |= BUZZER_ON;
360 else
361 dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON;
362
363 dev->ctl_data->byte[HID_OR1] = dev->keybit;
364 dev->ctl_data->byte[HID_OR2] = dev->keybit;
365
366 dev->buzzer_pending = 0;
367 dev->ctl_urb_pending = 1;
368
369 error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC);
370 if (error)
371 err("%s: usb_submit_urb (urb_ctl) failed %d",
372 __func__, error);
373 }
374
375 spin_unlock(&dev->ctl_submit_lock);
376}
377
378static void cm109_urb_ctl_callback(struct urb *urb)
379{
380 struct cm109_dev *dev = urb->context;
381 const int status = urb->status;
382 int error;
383
67d47641 384 dev_dbg(&urb->dev->dev, "### URB CTL: [0x%02x 0x%02x 0x%02x 0x%02x]",
c04148f9
AH		 385 dev->ctl_data->byte[0],
386 dev->ctl_data->byte[1],
387 dev->ctl_data->byte[2],
388 dev->ctl_data->byte[3]);
c04148f9
AH		 389
390 if (status)
391 err("%s: urb status %d", __func__, status);
392
393 spin_lock(&dev->ctl_submit_lock);
394
395 dev->ctl_urb_pending = 0;
396
397 if (likely(!dev->shutdown)) {
398
399 if (dev->buzzer_pending) {
400 dev->buzzer_pending = 0;
401 dev->ctl_urb_pending = 1;
402 cm109_submit_buzz_toggle(dev);
403 } else if (likely(!dev->irq_urb_pending)) {
404 /* ask for key data */
405 dev->irq_urb_pending = 1;
406 error = usb_submit_urb(dev->urb_irq, GFP_ATOMIC);
407 if (error)
408 err("%s: usb_submit_urb (urb_irq) failed %d",
409 __func__, error);
410 }
411 }
412
413 spin_unlock(&dev->ctl_submit_lock);
414}
415
416static void cm109_toggle_buzzer_async(struct cm109_dev *dev)
417{
418 unsigned long flags;
419
420 spin_lock_irqsave(&dev->ctl_submit_lock, flags);
421
422 if (dev->ctl_urb_pending) {
423 /* URB completion will resubmit */
424 dev->buzzer_pending = 1;
425 } else {
426 dev->ctl_urb_pending = 1;
427 cm109_submit_buzz_toggle(dev);
428 }
429
430 spin_unlock_irqrestore(&dev->ctl_submit_lock, flags);
431}
432
433static void cm109_toggle_buzzer_sync(struct cm109_dev *dev, int on)
434{
435 int error;
436
437 if (on)
438 dev->ctl_data->byte[HID_OR0] |= BUZZER_ON;
439 else
440 dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON;
441
442 error = usb_control_msg(dev->udev,
443 usb_sndctrlpipe(dev->udev, 0),
444 dev->ctl_req->bRequest,
445 dev->ctl_req->bRequestType,
446 le16_to_cpu(dev->ctl_req->wValue),
447 le16_to_cpu(dev->ctl_req->wIndex),
448 dev->ctl_data,
449 USB_PKT_LEN, USB_CTRL_SET_TIMEOUT);
450 if (error && error != EINTR)
451 err("%s: usb_control_msg() failed %d", __func__, error);
452}
453
454static void cm109_stop_traffic(struct cm109_dev *dev)
455{
456 dev->shutdown = 1;
457 /*
458 * Make sure other CPUs see this
459 */
460 smp_wmb();
461
462 usb_kill_urb(dev->urb_ctl);
463 usb_kill_urb(dev->urb_irq);
464
465 cm109_toggle_buzzer_sync(dev, 0);
466
467 dev->shutdown = 0;
468 smp_wmb();
469}
470
471static void cm109_restore_state(struct cm109_dev *dev)
472{
473 if (dev->open) {
474 /*
475 * Restore buzzer state.
476 * This will also kick regular URB submission
477 */
478 cm109_toggle_buzzer_async(dev);
479 }
480}
481
482/******************************************************************************
483 * input event interface
484 *****************************************************************************/
485
486static int cm109_input_open(struct input_dev *idev)
487{
488 struct cm109_dev *dev = input_get_drvdata(idev);
489 int error;
490
491 error = usb_autopm_get_interface(dev->intf);
492 if (error < 0) {
493 err("%s - cannot autoresume, result %d",
494 __func__, error);
495 return error;
496 }
497
498 mutex_lock(&dev->pm_mutex);
499
500 dev->buzzer_state = 0;
501 dev->key_code = -1; /* no keys pressed */
502 dev->keybit = 0xf;
503
504 /* issue INIT */
505 dev->ctl_data->byte[HID_OR0] = HID_OR_GPO_BUZ_SPDIF;
506 dev->ctl_data->byte[HID_OR1] = dev->keybit;
507 dev->ctl_data->byte[HID_OR2] = dev->keybit;
508 dev->ctl_data->byte[HID_OR3] = 0x00;
509
510 error = usb_submit_urb(dev->urb_ctl, GFP_KERNEL);
511 if (error)
512 err("%s: usb_submit_urb (urb_ctl) failed %d", __func__, error);
513 else
514 dev->open = 1;
515
516 mutex_unlock(&dev->pm_mutex);
517
518 if (error)
519 usb_autopm_put_interface(dev->intf);
520
521 return error;
522}
523
524static void cm109_input_close(struct input_dev *idev)
525{
526 struct cm109_dev *dev = input_get_drvdata(idev);
527
528 mutex_lock(&dev->pm_mutex);
529
530 /*
531 * Once we are here event delivery is stopped so we
532 * don't need to worry about someone starting buzzer
533 * again
534 */
535 cm109_stop_traffic(dev);
536 dev->open = 0;
537
538 mutex_unlock(&dev->pm_mutex);
539
540 usb_autopm_put_interface(dev->intf);
541}
542
543static int cm109_input_ev(struct input_dev *idev, unsigned int type,
544 unsigned int code, int value)
545{
546 struct cm109_dev *dev = input_get_drvdata(idev);
547
67d47641
SR		 548 dev_dbg(&dev->udev->dev,
549 "input_ev: type=%u code=%u value=%d", type, code, value);
c04148f9
AH		 550
551 if (type != EV_SND)
552 return -EINVAL;
553
554 switch (code) {
555 case SND_TONE:
556 case SND_BELL:
557 dev->buzzer_state = !!value;
558 if (!dev->resetting)
559 cm109_toggle_buzzer_async(dev);
560 return 0;
561
562 default:
563 return -EINVAL;
564 }
565}
566
567
568/******************************************************************************
569 * Linux interface and usb initialisation
570 *****************************************************************************/
571
572struct driver_info {
573 char *name;
574};
575
576static const struct driver_info info_cm109 = {
577 .name = "CM109 USB driver",
578};
579
580enum {
581 VENDOR_ID = 0x0d8c, /* C-Media Electronics */
582 PRODUCT_ID_CM109 = 0x000e, /* CM109 defines range 0x0008 - 0x000f */
583};
584
585/* table of devices that work with this driver */
586static const struct usb_device_id cm109_usb_table[] = {
587 {
588 .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
589 USB_DEVICE_ID_MATCH_INT_INFO,
590 .idVendor = VENDOR_ID,
591 .idProduct = PRODUCT_ID_CM109,
592 .bInterfaceClass = USB_CLASS_HID,
593 .bInterfaceSubClass = 0,
594 .bInterfaceProtocol = 0,
595 .driver_info = (kernel_ulong_t) &info_cm109
596 },
597 /* you can add more devices here with product ID 0x0008 - 0x000f */
598 { }
599};
600
601static void cm109_usb_cleanup(struct cm109_dev *dev)
602{
603 if (dev->ctl_req)
604 usb_buffer_free(dev->udev, sizeof(*(dev->ctl_req)),
605 dev->ctl_req, dev->ctl_req_dma);
606 if (dev->ctl_data)
607 usb_buffer_free(dev->udev, USB_PKT_LEN,
608 dev->ctl_data, dev->ctl_dma);
609 if (dev->irq_data)
610 usb_buffer_free(dev->udev, USB_PKT_LEN,
611 dev->irq_data, dev->irq_dma);
612
613 usb_free_urb(dev->urb_irq); /* parameter validation in core/urb */
614 usb_free_urb(dev->urb_ctl); /* parameter validation in core/urb */
615 kfree(dev);
616}
617
618static void cm109_usb_disconnect(struct usb_interface *interface)
619{
620 struct cm109_dev *dev = usb_get_intfdata(interface);
621
622 usb_set_intfdata(interface, NULL);
623 input_unregister_device(dev->idev);
624 cm109_usb_cleanup(dev);
625}
626
627static int cm109_usb_probe(struct usb_interface *intf,
628 const struct usb_device_id *id)
629{
630 struct usb_device *udev = interface_to_usbdev(intf);
631 struct driver_info *nfo = (struct driver_info *)id->driver_info;
632 struct usb_host_interface *interface;
633 struct usb_endpoint_descriptor *endpoint;
634 struct cm109_dev *dev;
635 struct input_dev *input_dev = NULL;
636 int ret, pipe, i;
637 int error = -ENOMEM;
638
639 interface = intf->cur_altsetting;
640 endpoint = &interface->endpoint[0].desc;
641
642 if (!usb_endpoint_is_int_in(endpoint))
643 return -ENODEV;
644
645 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
646 if (!dev)
647 return -ENOMEM;
648
649 spin_lock_init(&dev->ctl_submit_lock);
650 mutex_init(&dev->pm_mutex);
651
652 dev->udev = udev;
653 dev->intf = intf;
654
655 dev->idev = input_dev = input_allocate_device();
656 if (!input_dev)
657 goto err_out;
658
659 /* allocate usb buffers */
660 dev->irq_data = usb_buffer_alloc(udev, USB_PKT_LEN,
661 GFP_KERNEL, &dev->irq_dma);
662 if (!dev->irq_data)
663 goto err_out;
664
665 dev->ctl_data = usb_buffer_alloc(udev, USB_PKT_LEN,
666 GFP_KERNEL, &dev->ctl_dma);
667 if (!dev->ctl_data)
668 goto err_out;
669
670 dev->ctl_req = usb_buffer_alloc(udev, sizeof(*(dev->ctl_req)),
671 GFP_KERNEL, &dev->ctl_req_dma);
672 if (!dev->ctl_req)
673 goto err_out;
674
675 /* allocate urb structures */
676 dev->urb_irq = usb_alloc_urb(0, GFP_KERNEL);
677 if (!dev->urb_irq)
678 goto err_out;
679
680 dev->urb_ctl = usb_alloc_urb(0, GFP_KERNEL);
681 if (!dev->urb_ctl)
682 goto err_out;
683
684 /* get a handle to the interrupt data pipe */
685 pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);
686 ret = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
687 if (ret != USB_PKT_LEN)
688 err("invalid payload size %d, expected %d", ret, USB_PKT_LEN);
689
690 /* initialise irq urb */
691 usb_fill_int_urb(dev->urb_irq, udev, pipe, dev->irq_data,
692 USB_PKT_LEN,
693 cm109_urb_irq_callback, dev, endpoint->bInterval);
694 dev->urb_irq->transfer_dma = dev->irq_dma;
695 dev->urb_irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
696 dev->urb_irq->dev = udev;
697
698 /* initialise ctl urb */
699 dev->ctl_req->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE |
700 USB_DIR_OUT;
701 dev->ctl_req->bRequest = USB_REQ_SET_CONFIGURATION;
702 dev->ctl_req->wValue = cpu_to_le16(0x200);
703 dev->ctl_req->wIndex = cpu_to_le16(interface->desc.bInterfaceNumber);
704 dev->ctl_req->wLength = cpu_to_le16(USB_PKT_LEN);
705
706 usb_fill_control_urb(dev->urb_ctl, udev, usb_sndctrlpipe(udev, 0),
707 (void *)dev->ctl_req, dev->ctl_data, USB_PKT_LEN,
708 cm109_urb_ctl_callback, dev);
709 dev->urb_ctl->setup_dma = dev->ctl_req_dma;
710 dev->urb_ctl->transfer_dma = dev->ctl_dma;
711 dev->urb_ctl->transfer_flags |= URB_NO_SETUP_DMA_MAP |
712 URB_NO_TRANSFER_DMA_MAP;
713 dev->urb_ctl->dev = udev;
714
715 /* find out the physical bus location */
716 usb_make_path(udev, dev->phys, sizeof(dev->phys));
717 strlcat(dev->phys, "/input0", sizeof(dev->phys));
718
719 /* register settings for the input device */
720 input_dev->name = nfo->name;
721 input_dev->phys = dev->phys;
722 usb_to_input_id(udev, &input_dev->id);
723 input_dev->dev.parent = &intf->dev;
724
725 input_set_drvdata(input_dev, dev);
726 input_dev->open = cm109_input_open;
727 input_dev->close = cm109_input_close;
728 input_dev->event = cm109_input_ev;
729
730 input_dev->keycode = dev->keymap;
731 input_dev->keycodesize = sizeof(unsigned char);
732 input_dev->keycodemax = ARRAY_SIZE(dev->keymap);
733
734 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_SND);
735 input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
736
737 /* register available key events */
738 for (i = 0; i < KEYMAP_SIZE; i++) {
739 unsigned short k = keymap(i);
740 dev->keymap[i] = k;
741 __set_bit(k, input_dev->keybit);
742 }
743 __clear_bit(KEY_RESERVED, input_dev->keybit);
744
745 error = input_register_device(dev->idev);
746 if (error)
747 goto err_out;
748
749 usb_set_intfdata(intf, dev);
750
751 return 0;
752
753 err_out:
754 input_free_device(input_dev);
755 cm109_usb_cleanup(dev);
756 return error;
757}
758
759static int cm109_usb_suspend(struct usb_interface *intf, pm_message_t message)
760{
761 struct cm109_dev *dev = usb_get_intfdata(intf);
762
67d47641 763 dev_info(&intf->dev, "cm109: usb_suspend (event=%d)", message.event);
c04148f9
AH		 764
765 mutex_lock(&dev->pm_mutex);
766 cm109_stop_traffic(dev);
767 mutex_unlock(&dev->pm_mutex);
768
769 return 0;
770}
771
772static int cm109_usb_resume(struct usb_interface *intf)
773{
774 struct cm109_dev *dev = usb_get_intfdata(intf);
775
67d47641 776 dev_info(&intf->dev, "cm109: usb_resume");
c04148f9
AH		 777
778 mutex_lock(&dev->pm_mutex);
779 cm109_restore_state(dev);
780 mutex_unlock(&dev->pm_mutex);
781
782 return 0;
783}
784
785static int cm109_usb_pre_reset(struct usb_interface *intf)
786{
787 struct cm109_dev *dev = usb_get_intfdata(intf);
788
789 mutex_lock(&dev->pm_mutex);
790
791 /*
792 * Make sure input events don't try to toggle buzzer
793 * while we are resetting
794 */
795 dev->resetting = 1;
796 smp_wmb();
797
798 cm109_stop_traffic(dev);
799
800 return 0;
801}
802
803static int cm109_usb_post_reset(struct usb_interface *intf)
804{
805 struct cm109_dev *dev = usb_get_intfdata(intf);
806
807 dev->resetting = 0;
808 smp_wmb();
809
810 cm109_restore_state(dev);
811
812 mutex_unlock(&dev->pm_mutex);
813
814 return 0;
815}
816
817static struct usb_driver cm109_driver = {
818 .name = "cm109",
819 .probe = cm109_usb_probe,
820 .disconnect = cm109_usb_disconnect,
821 .suspend = cm109_usb_suspend,
822 .resume = cm109_usb_resume,
823 .reset_resume = cm109_usb_resume,
824 .pre_reset = cm109_usb_pre_reset,
825 .post_reset = cm109_usb_post_reset,
826 .id_table = cm109_usb_table,
827 .supports_autosuspend = 1,
828};
829
830static int __init cm109_select_keymap(void)
831{
832 /* Load the phone keymap */
833 if (!strcasecmp(phone, "kip1000")) {
834 keymap = keymap_kip1000;
67d47641
SR		 835 printk(KERN_INFO KBUILD_MODNAME ": "
836 "Keymap for Komunikate KIP1000 phone loaded");
c04148f9
AH		 837 } else if (!strcasecmp(phone, "gtalk")) {
838 keymap = keymap_gtalk;
67d47641
SR		 839 printk(KERN_INFO KBUILD_MODNAME ": "
840 "Keymap for Genius G-talk phone loaded");
c04148f9
AH		 841 } else if (!strcasecmp(phone, "usbph01")) {
842 keymap = keymap_usbph01;
67d47641
SR		 843 printk(KERN_INFO KBUILD_MODNAME ": "
844 "Keymap for Allied-Telesis Corega USBPH01 phone loaded");
c04148f9 845 } else {
67d47641
SR		 846 printk(KERN_ERR KBUILD_MODNAME ": "
847 "Unsupported phone: %s", phone);
c04148f9
AH		 848 return -EINVAL;
849 }
850
851 return 0;
852}
853
854static int __init cm109_init(void)
855{
856 int err;
857
858 err = cm109_select_keymap();
859 if (err)
860 return err;
861
862 err = usb_register(&cm109_driver);
863 if (err)
864 return err;
865
67d47641
SR		 866 printk(KERN_INFO KBUILD_MODNAME ": "
867 DRIVER_DESC ": " DRIVER_VERSION " (C) " DRIVER_AUTHOR);
c04148f9
AH		 868
869 return 0;
870}
871
872static void __exit cm109_exit(void)
873{
874 usb_deregister(&cm109_driver);
875}
876
877module_init(cm109_init);
878module_exit(cm109_exit);
879
880MODULE_DEVICE_TABLE(usb, cm109_usb_table);
881
882MODULE_AUTHOR(DRIVER_AUTHOR);
883MODULE_DESCRIPTION(DRIVER_DESC);
884MODULE_LICENSE("GPL");
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