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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-16 14:52:08 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-16 14:52:08 -0400
commit36ac1d2f323f8bf8bc10c25b88f617657720e241 (patch)
treed51f87bdf16eaa19ce0c5a682c10dccfaef4b48d /drivers/input/misc/cm109.c
parentd7a6119f457f48a94985fdbdc400cbb03e136a76 (diff)
parent4c0e799a9a6dc64426ddb6c03aea1a154357658f (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (32 commits) Input: wm97xx - update email address for Liam Girdwood Input: i8042 - add Thinkpad R31 to nomux list Input: move map_to_7segment.h to include/linux Input: ads7846 - fix cache line sharing issue Input: cm109 - add missing newlines to messages Input: document i8042.debug in kernel-parameters.txt Input: keyboard - fix potential out of bound access to key_map Input: psmouse - add OLPC touchpad driver Input: psmouse - tweak PSMOUSE_DEFINE_ATTR to support raw set callbacks Input: psmouse - add psmouse_queue_work() for ps/2 extension to make use of Input: psmouse - export psmouse_set_state for ps/2 extensions to use Input: ads7846 - introduce .gpio_pendown to get pendown state Input: ALPS - add signature for DualPoint found in Dell Latitude E6500 Input: serio_raw - allow attaching to translated (SERIO_I8042XL) ports Input: cm109 - don't use obsolete logging macros Input: atkbd - expand Latitude's force release quirk to other Dells Input: bf54x-keys - add power management support Input: atmel_tsadcc - improve accuracy Input: convert drivers to use strict_strtoul() Input: appletouch - handle geyser 3/4 status bits ...
Diffstat (limited to 'drivers/input/misc/cm109.c')
-rw-r--r--drivers/input/misc/cm109.c882
1 files changed, 882 insertions, 0 deletions
diff --git a/drivers/input/misc/cm109.c b/drivers/input/misc/cm109.c
new file mode 100644
index 000000000000..bce160f4349b
--- /dev/null
+++ b/drivers/input/misc/cm109.c
@@ -0,0 +1,882 @@
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 DRIVER_VERSION "20080805"
40#define DRIVER_AUTHOR "Alfred E. Heggestad"
41#define DRIVER_DESC "CM109 phone driver"
42
43static char *phone = "kip1000";
44module_param(phone, charp, S_IRUSR);
45MODULE_PARM_DESC(phone, "Phone name {kip1000, gtalk, usbph01}");
46
47enum {
48 /* HID Registers */
49 HID_IR0 = 0x00, /* Record/Playback-mute button, Volume up/down */
50 HID_IR1 = 0x01, /* GPI, generic registers or EEPROM_DATA0 */
51 HID_IR2 = 0x02, /* Generic registers or EEPROM_DATA1 */
52 HID_IR3 = 0x03, /* Generic registers or EEPROM_CTRL */
53 HID_OR0 = 0x00, /* Mapping control, buzzer, SPDIF (offset 0x04) */
54 HID_OR1 = 0x01, /* GPO - General Purpose Output */
55 HID_OR2 = 0x02, /* Set GPIO to input/output mode */
56 HID_OR3 = 0x03, /* SPDIF status channel or EEPROM_CTRL */
57
58 /* HID_IR0 */
59 RECORD_MUTE = 1 << 3,
60 PLAYBACK_MUTE = 1 << 2,
61 VOLUME_DOWN = 1 << 1,
62 VOLUME_UP = 1 << 0,
63
64 /* HID_OR0 */
65 /* bits 7-6
66 0: HID_OR1-2 are used for GPO; HID_OR0, 3 are used for buzzer
67 and SPDIF
68 1: HID_OR0-3 are used as generic HID registers
69 2: Values written to HID_OR0-3 are also mapped to MCU_CTRL,
70 EEPROM_DATA0-1, EEPROM_CTRL (see Note)
71 3: Reserved
72 */
73 HID_OR_GPO_BUZ_SPDIF = 0 << 6,
74 HID_OR_GENERIC_HID_REG = 1 << 6,
75 HID_OR_MAP_MCU_EEPROM = 2 << 6,
76
77 BUZZER_ON = 1 << 5,
78
79 /* up to 256 normal keys, up to 16 special keys */
80 KEYMAP_SIZE = 256 + 16,
81};
82
83/* CM109 protocol packet */
84struct cm109_ctl_packet {
85 u8 byte[4];
86} __attribute__ ((packed));
87
88enum { USB_PKT_LEN = sizeof(struct cm109_ctl_packet) };
89
90/* CM109 device structure */
91struct cm109_dev {
92 struct input_dev *idev; /* input device */
93 struct usb_device *udev; /* usb device */
94 struct usb_interface *intf;
95
96 /* irq input channel */
97 struct cm109_ctl_packet *irq_data;
98 dma_addr_t irq_dma;
99 struct urb *urb_irq;
100
101 /* control output channel */
102 struct cm109_ctl_packet *ctl_data;
103 dma_addr_t ctl_dma;
104 struct usb_ctrlrequest *ctl_req;
105 dma_addr_t ctl_req_dma;
106 struct urb *urb_ctl;
107 /*
108 * The 3 bitfields below are protected by ctl_submit_lock.
109 * They have to be separate since they are accessed from IRQ
110 * context.
111 */
112 unsigned irq_urb_pending:1; /* irq_urb is in flight */
113 unsigned ctl_urb_pending:1; /* ctl_urb is in flight */
114 unsigned buzzer_pending:1; /* need to issue buzz command */
115 spinlock_t ctl_submit_lock;
116
117 unsigned char buzzer_state; /* on/off */
118
119 /* flags */
120 unsigned open:1;
121 unsigned resetting:1;
122 unsigned shutdown:1;
123
124 /* This mutex protects writes to the above flags */
125 struct mutex pm_mutex;
126
127 unsigned short keymap[KEYMAP_SIZE];
128
129 char phys[64]; /* physical device path */
130 int key_code; /* last reported key */
131 int keybit; /* 0=new scan 1,2,4,8=scan columns */
132 u8 gpi; /* Cached value of GPI (high nibble) */
133};
134
135/******************************************************************************
136 * CM109 key interface
137 *****************************************************************************/
138
139static unsigned short special_keymap(int code)
140{
141 if (code > 0xff) {
142 switch (code - 0xff) {
143 case RECORD_MUTE: return KEY_MUTE;
144 case PLAYBACK_MUTE: return KEY_MUTE;
145 case VOLUME_DOWN: return KEY_VOLUMEDOWN;
146 case VOLUME_UP: return KEY_VOLUMEUP;
147 }
148 }
149 return KEY_RESERVED;
150}
151
152/* Map device buttons to internal key events.
153 *
154 * The "up" and "down" keys, are symbolised by arrows on the button.
155 * The "pickup" and "hangup" keys are symbolised by a green and red phone
156 * on the button.
157
158 Komunikate KIP1000 Keyboard Matrix
159
160 -> -- 1 -- 2 -- 3 --> GPI pin 4 (0x10)
161 | | | |
162 <- -- 4 -- 5 -- 6 --> GPI pin 5 (0x20)
163 | | | |
164 END - 7 -- 8 -- 9 --> GPI pin 6 (0x40)
165 | | | |
166 OK -- * -- 0 -- # --> GPI pin 7 (0x80)
167 | | | |
168
169 /|\ /|\ /|\ /|\
170 | | | |
171GPO
172pin: 3 2 1 0
173 0x8 0x4 0x2 0x1
174
175 */
176static unsigned short keymap_kip1000(int scancode)
177{
178 switch (scancode) { /* phone key: */
179 case 0x82: return KEY_NUMERIC_0; /* 0 */
180 case 0x14: return KEY_NUMERIC_1; /* 1 */
181 case 0x12: return KEY_NUMERIC_2; /* 2 */
182 case 0x11: return KEY_NUMERIC_3; /* 3 */
183 case 0x24: return KEY_NUMERIC_4; /* 4 */
184 case 0x22: return KEY_NUMERIC_5; /* 5 */
185 case 0x21: return KEY_NUMERIC_6; /* 6 */
186 case 0x44: return KEY_NUMERIC_7; /* 7 */
187 case 0x42: return KEY_NUMERIC_8; /* 8 */
188 case 0x41: return KEY_NUMERIC_9; /* 9 */
189 case 0x81: return KEY_NUMERIC_POUND; /* # */
190 case 0x84: return KEY_NUMERIC_STAR; /* * */
191 case 0x88: return KEY_ENTER; /* pickup */
192 case 0x48: return KEY_ESC; /* hangup */
193 case 0x28: return KEY_LEFT; /* IN */
194 case 0x18: return KEY_RIGHT; /* OUT */
195 default: return special_keymap(scancode);
196 }
197}
198
199/*
200 Contributed by Shaun Jackman <sjackman@gmail.com>
201
202 Genius G-Talk keyboard matrix
203 0 1 2 3
204 4: 0 4 8 Talk
205 5: 1 5 9 End
206 6: 2 6 # Up
207 7: 3 7 * Down
208*/
209static unsigned short keymap_gtalk(int scancode)
210{
211 switch (scancode) {
212 case 0x11: return KEY_NUMERIC_0;
213 case 0x21: return KEY_NUMERIC_1;
214 case 0x41: return KEY_NUMERIC_2;
215 case 0x81: return KEY_NUMERIC_3;
216 case 0x12: return KEY_NUMERIC_4;
217 case 0x22: return KEY_NUMERIC_5;
218 case 0x42: return KEY_NUMERIC_6;
219 case 0x82: return KEY_NUMERIC_7;
220 case 0x14: return KEY_NUMERIC_8;
221 case 0x24: return KEY_NUMERIC_9;
222 case 0x44: return KEY_NUMERIC_POUND; /* # */
223 case 0x84: return KEY_NUMERIC_STAR; /* * */
224 case 0x18: return KEY_ENTER; /* Talk (green handset) */
225 case 0x28: return KEY_ESC; /* End (red handset) */
226 case 0x48: return KEY_UP; /* Menu up (rocker switch) */
227 case 0x88: return KEY_DOWN; /* Menu down (rocker switch) */
228 default: return special_keymap(scancode);
229 }
230}
231
232/*
233 * Keymap for Allied-Telesis Corega USBPH01
234 * http://www.alliedtelesis-corega.com/2/1344/1437/1360/chprd.html
235 *
236 * Contributed by july@nat.bg
237 */
238static unsigned short keymap_usbph01(int scancode)
239{
240 switch (scancode) {
241 case 0x11: return KEY_NUMERIC_0; /* 0 */
242 case 0x21: return KEY_NUMERIC_1; /* 1 */
243 case 0x41: return KEY_NUMERIC_2; /* 2 */
244 case 0x81: return KEY_NUMERIC_3; /* 3 */
245 case 0x12: return KEY_NUMERIC_4; /* 4 */
246 case 0x22: return KEY_NUMERIC_5; /* 5 */
247 case 0x42: return KEY_NUMERIC_6; /* 6 */
248 case 0x82: return KEY_NUMERIC_7; /* 7 */
249 case 0x14: return KEY_NUMERIC_8; /* 8 */
250 case 0x24: return KEY_NUMERIC_9; /* 9 */
251 case 0x44: return KEY_NUMERIC_POUND; /* # */
252 case 0x84: return KEY_NUMERIC_STAR; /* * */
253 case 0x18: return KEY_ENTER; /* pickup */
254 case 0x28: return KEY_ESC; /* hangup */
255 case 0x48: return KEY_LEFT; /* IN */
256 case 0x88: return KEY_RIGHT; /* OUT */
257 default: return special_keymap(scancode);
258 }
259}
260
261static unsigned short (*keymap)(int) = keymap_kip1000;
262
263/*
264 * Completes a request by converting the data into events for the
265 * input subsystem.
266 */
267static void report_key(struct cm109_dev *dev, int key)
268{
269 struct input_dev *idev = dev->idev;
270
271 if (dev->key_code >= 0) {
272 /* old key up */
273 input_report_key(idev, dev->key_code, 0);
274 }
275
276 dev->key_code = key;
277 if (key >= 0) {
278 /* new valid key */
279 input_report_key(idev, key, 1);
280 }
281
282 input_sync(idev);
283}
284
285/******************************************************************************
286 * CM109 usb communication interface
287 *****************************************************************************/
288
289static void cm109_submit_buzz_toggle(struct cm109_dev *dev)
290{
291 int error;
292
293 if (dev->buzzer_state)
294 dev->ctl_data->byte[HID_OR0] |= BUZZER_ON;
295 else
296 dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON;
297
298 error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC);
299 if (error)
300 err("%s: usb_submit_urb (urb_ctl) failed %d", __func__, error);
301}
302
303/*
304 * IRQ handler
305 */
306static void cm109_urb_irq_callback(struct urb *urb)
307{
308 struct cm109_dev *dev = urb->context;
309 const int status = urb->status;
310 int error;
311
312 dev_dbg(&urb->dev->dev, "### URB IRQ: [0x%02x 0x%02x 0x%02x 0x%02x] keybit=0x%02x\n",
313 dev->irq_data->byte[0],
314 dev->irq_data->byte[1],
315 dev->irq_data->byte[2],
316 dev->irq_data->byte[3],
317 dev->keybit);
318
319 if (status) {
320 if (status == -ESHUTDOWN)
321 return;
322 err("%s: urb status %d", __func__, status);
323 }
324
325 /* Special keys */
326 if (dev->irq_data->byte[HID_IR0] & 0x0f) {
327 const int code = (dev->irq_data->byte[HID_IR0] & 0x0f);
328 report_key(dev, dev->keymap[0xff + code]);
329 }
330
331 /* Scan key column */
332 if (dev->keybit == 0xf) {
333
334 /* Any changes ? */
335 if ((dev->gpi & 0xf0) == (dev->irq_data->byte[HID_IR1] & 0xf0))
336 goto out;
337
338 dev->gpi = dev->irq_data->byte[HID_IR1] & 0xf0;
339 dev->keybit = 0x1;
340 } else {
341 report_key(dev, dev->keymap[dev->irq_data->byte[HID_IR1]]);
342
343 dev->keybit <<= 1;
344 if (dev->keybit > 0x8)
345 dev->keybit = 0xf;
346 }
347
348 out:
349
350 spin_lock(&dev->ctl_submit_lock);
351
352 dev->irq_urb_pending = 0;
353
354 if (likely(!dev->shutdown)) {
355
356 if (dev->buzzer_state)
357 dev->ctl_data->byte[HID_OR0] |= BUZZER_ON;
358 else
359 dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON;
360
361 dev->ctl_data->byte[HID_OR1] = dev->keybit;
362 dev->ctl_data->byte[HID_OR2] = dev->keybit;
363
364 dev->buzzer_pending = 0;
365 dev->ctl_urb_pending = 1;
366
367 error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC);
368 if (error)
369 err("%s: usb_submit_urb (urb_ctl) failed %d",
370 __func__, error);
371 }
372
373 spin_unlock(&dev->ctl_submit_lock);
374}
375
376static void cm109_urb_ctl_callback(struct urb *urb)
377{
378 struct cm109_dev *dev = urb->context;
379 const int status = urb->status;
380 int error;
381
382 dev_dbg(&urb->dev->dev, "### URB CTL: [0x%02x 0x%02x 0x%02x 0x%02x]\n",
383 dev->ctl_data->byte[0],
384 dev->ctl_data->byte[1],
385 dev->ctl_data->byte[2],
386 dev->ctl_data->byte[3]);
387
388 if (status)
389 err("%s: urb status %d", __func__, status);
390
391 spin_lock(&dev->ctl_submit_lock);
392
393 dev->ctl_urb_pending = 0;
394
395 if (likely(!dev->shutdown)) {
396
397 if (dev->buzzer_pending) {
398 dev->buzzer_pending = 0;
399 dev->ctl_urb_pending = 1;
400 cm109_submit_buzz_toggle(dev);
401 } else if (likely(!dev->irq_urb_pending)) {
402 /* ask for key data */
403 dev->irq_urb_pending = 1;
404 error = usb_submit_urb(dev->urb_irq, GFP_ATOMIC);
405 if (error)
406 err("%s: usb_submit_urb (urb_irq) failed %d",
407 __func__, error);
408 }
409 }
410
411 spin_unlock(&dev->ctl_submit_lock);
412}
413
414static void cm109_toggle_buzzer_async(struct cm109_dev *dev)
415{
416 unsigned long flags;
417
418 spin_lock_irqsave(&dev->ctl_submit_lock, flags);
419
420 if (dev->ctl_urb_pending) {
421 /* URB completion will resubmit */
422 dev->buzzer_pending = 1;
423 } else {
424 dev->ctl_urb_pending = 1;
425 cm109_submit_buzz_toggle(dev);
426 }
427
428 spin_unlock_irqrestore(&dev->ctl_submit_lock, flags);
429}
430
431static void cm109_toggle_buzzer_sync(struct cm109_dev *dev, int on)
432{
433 int error;
434
435 if (on)
436 dev->ctl_data->byte[HID_OR0] |= BUZZER_ON;
437 else
438 dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON;
439
440 error = usb_control_msg(dev->udev,
441 usb_sndctrlpipe(dev->udev, 0),
442 dev->ctl_req->bRequest,
443 dev->ctl_req->bRequestType,
444 le16_to_cpu(dev->ctl_req->wValue),
445 le16_to_cpu(dev->ctl_req->wIndex),
446 dev->ctl_data,
447 USB_PKT_LEN, USB_CTRL_SET_TIMEOUT);
448 if (error && error != EINTR)
449 err("%s: usb_control_msg() failed %d", __func__, error);
450}
451
452static void cm109_stop_traffic(struct cm109_dev *dev)
453{
454 dev->shutdown = 1;
455 /*
456 * Make sure other CPUs see this
457 */
458 smp_wmb();
459
460 usb_kill_urb(dev->urb_ctl);
461 usb_kill_urb(dev->urb_irq);
462
463 cm109_toggle_buzzer_sync(dev, 0);
464
465 dev->shutdown = 0;
466 smp_wmb();
467}
468
469static void cm109_restore_state(struct cm109_dev *dev)
470{
471 if (dev->open) {
472 /*
473 * Restore buzzer state.
474 * This will also kick regular URB submission
475 */
476 cm109_toggle_buzzer_async(dev);
477 }
478}
479
480/******************************************************************************
481 * input event interface
482 *****************************************************************************/
483
484static int cm109_input_open(struct input_dev *idev)
485{
486 struct cm109_dev *dev = input_get_drvdata(idev);
487 int error;
488
489 error = usb_autopm_get_interface(dev->intf);
490 if (error < 0) {
491 err("%s - cannot autoresume, result %d",
492 __func__, error);
493 return error;
494 }
495
496 mutex_lock(&dev->pm_mutex);
497
498 dev->buzzer_state = 0;
499 dev->key_code = -1; /* no keys pressed */
500 dev->keybit = 0xf;
501
502 /* issue INIT */
503 dev->ctl_data->byte[HID_OR0] = HID_OR_GPO_BUZ_SPDIF;
504 dev->ctl_data->byte[HID_OR1] = dev->keybit;
505 dev->ctl_data->byte[HID_OR2] = dev->keybit;
506 dev->ctl_data->byte[HID_OR3] = 0x00;
507
508 error = usb_submit_urb(dev->urb_ctl, GFP_KERNEL);
509 if (error)
510 err("%s: usb_submit_urb (urb_ctl) failed %d", __func__, error);
511 else
512 dev->open = 1;
513
514 mutex_unlock(&dev->pm_mutex);
515
516 if (error)
517 usb_autopm_put_interface(dev->intf);
518
519 return error;
520}
521
522static void cm109_input_close(struct input_dev *idev)
523{
524 struct cm109_dev *dev = input_get_drvdata(idev);
525
526 mutex_lock(&dev->pm_mutex);
527
528 /*
529 * Once we are here event delivery is stopped so we
530 * don't need to worry about someone starting buzzer
531 * again
532 */
533 cm109_stop_traffic(dev);
534 dev->open = 0;
535
536 mutex_unlock(&dev->pm_mutex);
537
538 usb_autopm_put_interface(dev->intf);
539}
540
541static int cm109_input_ev(struct input_dev *idev, unsigned int type,
542 unsigned int code, int value)
543{
544 struct cm109_dev *dev = input_get_drvdata(idev);
545
546 dev_dbg(&dev->udev->dev,
547 "input_ev: type=%u code=%u value=%d\n", type, code, value);
548
549 if (type != EV_SND)
550 return -EINVAL;
551
552 switch (code) {
553 case SND_TONE:
554 case SND_BELL:
555 dev->buzzer_state = !!value;
556 if (!dev->resetting)
557 cm109_toggle_buzzer_async(dev);
558 return 0;
559
560 default:
561 return -EINVAL;
562 }
563}
564
565
566/******************************************************************************
567 * Linux interface and usb initialisation
568 *****************************************************************************/
569
570struct driver_info {
571 char *name;
572};
573
574static const struct driver_info info_cm109 = {
575 .name = "CM109 USB driver",
576};
577
578enum {
579 VENDOR_ID = 0x0d8c, /* C-Media Electronics */
580 PRODUCT_ID_CM109 = 0x000e, /* CM109 defines range 0x0008 - 0x000f */
581};
582
583/* table of devices that work with this driver */
584static const struct usb_device_id cm109_usb_table[] = {
585 {
586 .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
587 USB_DEVICE_ID_MATCH_INT_INFO,
588 .idVendor = VENDOR_ID,
589 .idProduct = PRODUCT_ID_CM109,
590 .bInterfaceClass = USB_CLASS_HID,
591 .bInterfaceSubClass = 0,
592 .bInterfaceProtocol = 0,
593 .driver_info = (kernel_ulong_t) &info_cm109
594 },
595 /* you can add more devices here with product ID 0x0008 - 0x000f */
596 { }
597};
598
599static void cm109_usb_cleanup(struct cm109_dev *dev)
600{
601 if (dev->ctl_req)
602 usb_buffer_free(dev->udev, sizeof(*(dev->ctl_req)),
603 dev->ctl_req, dev->ctl_req_dma);
604 if (dev->ctl_data)
605 usb_buffer_free(dev->udev, USB_PKT_LEN,
606 dev->ctl_data, dev->ctl_dma);
607 if (dev->irq_data)
608 usb_buffer_free(dev->udev, USB_PKT_LEN,
609 dev->irq_data, dev->irq_dma);
610
611 usb_free_urb(dev->urb_irq); /* parameter validation in core/urb */
612 usb_free_urb(dev->urb_ctl); /* parameter validation in core/urb */
613 kfree(dev);
614}
615
616static void cm109_usb_disconnect(struct usb_interface *interface)
617{
618 struct cm109_dev *dev = usb_get_intfdata(interface);
619
620 usb_set_intfdata(interface, NULL);
621 input_unregister_device(dev->idev);
622 cm109_usb_cleanup(dev);
623}
624
625static int cm109_usb_probe(struct usb_interface *intf,
626 const struct usb_device_id *id)
627{
628 struct usb_device *udev = interface_to_usbdev(intf);
629 struct driver_info *nfo = (struct driver_info *)id->driver_info;
630 struct usb_host_interface *interface;
631 struct usb_endpoint_descriptor *endpoint;
632 struct cm109_dev *dev;
633 struct input_dev *input_dev = NULL;
634 int ret, pipe, i;
635 int error = -ENOMEM;
636
637 interface = intf->cur_altsetting;
638 endpoint = &interface->endpoint[0].desc;
639
640 if (!usb_endpoint_is_int_in(endpoint))
641 return -ENODEV;
642
643 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
644 if (!dev)
645 return -ENOMEM;
646
647 spin_lock_init(&dev->ctl_submit_lock);
648 mutex_init(&dev->pm_mutex);
649
650 dev->udev = udev;
651 dev->intf = intf;
652
653 dev->idev = input_dev = input_allocate_device();
654 if (!input_dev)
655 goto err_out;
656
657 /* allocate usb buffers */
658 dev->irq_data = usb_buffer_alloc(udev, USB_PKT_LEN,
659 GFP_KERNEL, &dev->irq_dma);
660 if (!dev->irq_data)
661 goto err_out;
662
663 dev->ctl_data = usb_buffer_alloc(udev, USB_PKT_LEN,
664 GFP_KERNEL, &dev->ctl_dma);
665 if (!dev->ctl_data)
666 goto err_out;
667
668 dev->ctl_req = usb_buffer_alloc(udev, sizeof(*(dev->ctl_req)),
669 GFP_KERNEL, &dev->ctl_req_dma);
670 if (!dev->ctl_req)
671 goto err_out;
672
673 /* allocate urb structures */
674 dev->urb_irq = usb_alloc_urb(0, GFP_KERNEL);
675 if (!dev->urb_irq)
676 goto err_out;
677
678 dev->urb_ctl = usb_alloc_urb(0, GFP_KERNEL);
679 if (!dev->urb_ctl)
680 goto err_out;
681
682 /* get a handle to the interrupt data pipe */
683 pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);
684 ret = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
685 if (ret != USB_PKT_LEN)
686 err("invalid payload size %d, expected %d", ret, USB_PKT_LEN);
687
688 /* initialise irq urb */
689 usb_fill_int_urb(dev->urb_irq, udev, pipe, dev->irq_data,
690 USB_PKT_LEN,
691 cm109_urb_irq_callback, dev, endpoint->bInterval);
692 dev->urb_irq->transfer_dma = dev->irq_dma;
693 dev->urb_irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
694 dev->urb_irq->dev = udev;
695
696 /* initialise ctl urb */
697 dev->ctl_req->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE |
698 USB_DIR_OUT;
699 dev->ctl_req->bRequest = USB_REQ_SET_CONFIGURATION;
700 dev->ctl_req->wValue = cpu_to_le16(0x200);
701 dev->ctl_req->wIndex = cpu_to_le16(interface->desc.bInterfaceNumber);
702 dev->ctl_req->wLength = cpu_to_le16(USB_PKT_LEN);
703
704 usb_fill_control_urb(dev->urb_ctl, udev, usb_sndctrlpipe(udev, 0),
705 (void *)dev->ctl_req, dev->ctl_data, USB_PKT_LEN,
706 cm109_urb_ctl_callback, dev);
707 dev->urb_ctl->setup_dma = dev->ctl_req_dma;
708 dev->urb_ctl->transfer_dma = dev->ctl_dma;
709 dev->urb_ctl->transfer_flags |= URB_NO_SETUP_DMA_MAP |
710 URB_NO_TRANSFER_DMA_MAP;
711 dev->urb_ctl->dev = udev;
712
713 /* find out the physical bus location */
714 usb_make_path(udev, dev->phys, sizeof(dev->phys));
715 strlcat(dev->phys, "/input0", sizeof(dev->phys));
716
717 /* register settings for the input device */
718 input_dev->name = nfo->name;
719 input_dev->phys = dev->phys;
720 usb_to_input_id(udev, &input_dev->id);
721 input_dev->dev.parent = &intf->dev;
722
723 input_set_drvdata(input_dev, dev);
724 input_dev->open = cm109_input_open;
725 input_dev->close = cm109_input_close;
726 input_dev->event = cm109_input_ev;
727
728 input_dev->keycode = dev->keymap;
729 input_dev->keycodesize = sizeof(unsigned char);
730 input_dev->keycodemax = ARRAY_SIZE(dev->keymap);
731
732 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_SND);
733 input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
734
735 /* register available key events */
736 for (i = 0; i < KEYMAP_SIZE; i++) {
737 unsigned short k = keymap(i);
738 dev->keymap[i] = k;
739 __set_bit(k, input_dev->keybit);
740 }
741 __clear_bit(KEY_RESERVED, input_dev->keybit);
742
743 error = input_register_device(dev->idev);
744 if (error)
745 goto err_out;
746
747 usb_set_intfdata(intf, dev);
748
749 return 0;
750
751 err_out:
752 input_free_device(input_dev);
753 cm109_usb_cleanup(dev);
754 return error;
755}
756
757static int cm109_usb_suspend(struct usb_interface *intf, pm_message_t message)
758{
759 struct cm109_dev *dev = usb_get_intfdata(intf);
760
761 dev_info(&intf->dev, "cm109: usb_suspend (event=%d)\n", message.event);
762
763 mutex_lock(&dev->pm_mutex);
764 cm109_stop_traffic(dev);
765 mutex_unlock(&dev->pm_mutex);
766
767 return 0;
768}
769
770static int cm109_usb_resume(struct usb_interface *intf)
771{
772 struct cm109_dev *dev = usb_get_intfdata(intf);
773
774 dev_info(&intf->dev, "cm109: usb_resume\n");
775
776 mutex_lock(&dev->pm_mutex);
777 cm109_restore_state(dev);
778 mutex_unlock(&dev->pm_mutex);
779
780 return 0;
781}
782
783static int cm109_usb_pre_reset(struct usb_interface *intf)
784{
785 struct cm109_dev *dev = usb_get_intfdata(intf);
786
787 mutex_lock(&dev->pm_mutex);
788
789 /*
790 * Make sure input events don't try to toggle buzzer
791 * while we are resetting
792 */
793 dev->resetting = 1;
794 smp_wmb();
795
796 cm109_stop_traffic(dev);
797
798 return 0;
799}
800
801static int cm109_usb_post_reset(struct usb_interface *intf)
802{
803 struct cm109_dev *dev = usb_get_intfdata(intf);
804
805 dev->resetting = 0;
806 smp_wmb();
807
808 cm109_restore_state(dev);
809
810 mutex_unlock(&dev->pm_mutex);
811
812 return 0;
813}
814
815static struct usb_driver cm109_driver = {
816 .name = "cm109",
817 .probe = cm109_usb_probe,
818 .disconnect = cm109_usb_disconnect,
819 .suspend = cm109_usb_suspend,
820 .resume = cm109_usb_resume,
821 .reset_resume = cm109_usb_resume,
822 .pre_reset = cm109_usb_pre_reset,
823 .post_reset = cm109_usb_post_reset,
824 .id_table = cm109_usb_table,
825 .supports_autosuspend = 1,
826};
827
828static int __init cm109_select_keymap(void)
829{
830 /* Load the phone keymap */
831 if (!strcasecmp(phone, "kip1000")) {
832 keymap = keymap_kip1000;
833 printk(KERN_INFO KBUILD_MODNAME ": "
834 "Keymap for Komunikate KIP1000 phone loaded\n");
835 } else if (!strcasecmp(phone, "gtalk")) {
836 keymap = keymap_gtalk;
837 printk(KERN_INFO KBUILD_MODNAME ": "
838 "Keymap for Genius G-talk phone loaded\n");
839 } else if (!strcasecmp(phone, "usbph01")) {
840 keymap = keymap_usbph01;
841 printk(KERN_INFO KBUILD_MODNAME ": "
842 "Keymap for Allied-Telesis Corega USBPH01 phone loaded\n");
843 } else {
844 printk(KERN_ERR KBUILD_MODNAME ": "
845 "Unsupported phone: %s\n", phone);
846 return -EINVAL;
847 }
848
849 return 0;
850}
851
852static int __init cm109_init(void)
853{
854 int err;
855
856 err = cm109_select_keymap();
857 if (err)
858 return err;
859
860 err = usb_register(&cm109_driver);
861 if (err)
862 return err;
863
864 printk(KERN_INFO KBUILD_MODNAME ": "
865 DRIVER_DESC ": " DRIVER_VERSION " (C) " DRIVER_AUTHOR "\n");
866
867 return 0;
868}
869
870static void __exit cm109_exit(void)
871{
872 usb_deregister(&cm109_driver);
873}
874
875module_init(cm109_init);
876module_exit(cm109_exit);
877
878MODULE_DEVICE_TABLE(usb, cm109_usb_table);
879
880MODULE_AUTHOR(DRIVER_AUTHOR);
881MODULE_DESCRIPTION(DRIVER_DESC);
882MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-05 20:00:50 -0500