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-rw-r--r--drivers/input/misc/Kconfig13
-rw-r--r--drivers/input/misc/Makefile1
-rw-r--r--drivers/input/misc/cm109.c884
3 files changed, 898 insertions, 0 deletions
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index e99b7882f382..199055db5082 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -180,6 +180,19 @@ config INPUT_YEALINK
180 To compile this driver as a module, choose M here: the module will be 180 To compile this driver as a module, choose M here: the module will be
181 called yealink. 181 called yealink.
182 182
183config INPUT_CM109
184 tristate "C-Media CM109 USB I/O Controller"
185 depends on EXPERIMENTAL
186 depends on USB_ARCH_HAS_HCD
187 select USB
188 help
189 Say Y here if you want to enable keyboard and buzzer functions of the
190 C-Media CM109 usb phones. The audio part is enabled by the generic
191 usb sound driver, so you might want to enable that as well.
192
193 To compile this driver as a module, choose M here: the module will be
194 called cm109.
195
183config INPUT_UINPUT 196config INPUT_UINPUT
184 tristate "User level driver support" 197 tristate "User level driver support"
185 help 198 help
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index f48009b52226..d7db2aeb8a98 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_INPUT_ATI_REMOTE2) += ati_remote2.o
16obj-$(CONFIG_INPUT_KEYSPAN_REMOTE) += keyspan_remote.o 16obj-$(CONFIG_INPUT_KEYSPAN_REMOTE) += keyspan_remote.o
17obj-$(CONFIG_INPUT_POWERMATE) += powermate.o 17obj-$(CONFIG_INPUT_POWERMATE) += powermate.o
18obj-$(CONFIG_INPUT_YEALINK) += yealink.o 18obj-$(CONFIG_INPUT_YEALINK) += yealink.o
19obj-$(CONFIG_INPUT_CM109) += cm109.o
19obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o 20obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o
20obj-$(CONFIG_INPUT_UINPUT) += uinput.o 21obj-$(CONFIG_INPUT_UINPUT) += uinput.o
21obj-$(CONFIG_INPUT_APANEL) += apanel.o 22obj-$(CONFIG_INPUT_APANEL) += apanel.o
diff --git a/drivers/input/misc/cm109.c b/drivers/input/misc/cm109.c
new file mode 100644
index 000000000000..404fd49243f8
--- /dev/null
+++ b/drivers/input/misc/cm109.c
@@ -0,0 +1,884 @@
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
314#if CM109_DEBUG
315 info("### URB IRQ: [0x%02x 0x%02x 0x%02x 0x%02x] keybit=0x%02x",
316 dev->irq_data->byte[0],
317 dev->irq_data->byte[1],
318 dev->irq_data->byte[2],
319 dev->irq_data->byte[3],
320 dev->keybit);
321#endif
322
323 if (status) {
324 if (status == -ESHUTDOWN)
325 return;
326 err("%s: urb status %d", __func__, status);
327 }
328
329 /* Special keys */
330 if (dev->irq_data->byte[HID_IR0] & 0x0f) {
331 const int code = (dev->irq_data->byte[HID_IR0] & 0x0f);
332 report_key(dev, dev->keymap[0xff + code]);
333 }
334
335 /* Scan key column */
336 if (dev->keybit == 0xf) {
337
338 /* Any changes ? */
339 if ((dev->gpi & 0xf0) == (dev->irq_data->byte[HID_IR1] & 0xf0))
340 goto out;
341
342 dev->gpi = dev->irq_data->byte[HID_IR1] & 0xf0;
343 dev->keybit = 0x1;
344 } else {
345 report_key(dev, dev->keymap[dev->irq_data->byte[HID_IR1]]);
346
347 dev->keybit <<= 1;
348 if (dev->keybit > 0x8)
349 dev->keybit = 0xf;
350 }
351
352 out:
353
354 spin_lock(&dev->ctl_submit_lock);
355
356 dev->irq_urb_pending = 0;
357
358 if (likely(!dev->shutdown)) {
359
360 if (dev->buzzer_state)
361 dev->ctl_data->byte[HID_OR0] |= BUZZER_ON;
362 else
363 dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON;
364
365 dev->ctl_data->byte[HID_OR1] = dev->keybit;
366 dev->ctl_data->byte[HID_OR2] = dev->keybit;
367
368 dev->buzzer_pending = 0;
369 dev->ctl_urb_pending = 1;
370
371 error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC);
372 if (error)
373 err("%s: usb_submit_urb (urb_ctl) failed %d",
374 __func__, error);
375 }
376
377 spin_unlock(&dev->ctl_submit_lock);
378}
379
380static void cm109_urb_ctl_callback(struct urb *urb)
381{
382 struct cm109_dev *dev = urb->context;
383 const int status = urb->status;
384 int error;
385
386#if CM109_DEBUG
387 info("### URB CTL: [0x%02x 0x%02x 0x%02x 0x%02x]",
388 dev->ctl_data->byte[0],
389 dev->ctl_data->byte[1],
390 dev->ctl_data->byte[2],
391 dev->ctl_data->byte[3]);
392#endif
393
394 if (status)
395 err("%s: urb status %d", __func__, status);
396
397 spin_lock(&dev->ctl_submit_lock);
398
399 dev->ctl_urb_pending = 0;
400
401 if (likely(!dev->shutdown)) {
402
403 if (dev->buzzer_pending) {
404 dev->buzzer_pending = 0;
405 dev->ctl_urb_pending = 1;
406 cm109_submit_buzz_toggle(dev);
407 } else if (likely(!dev->irq_urb_pending)) {
408 /* ask for key data */
409 dev->irq_urb_pending = 1;
410 error = usb_submit_urb(dev->urb_irq, GFP_ATOMIC);
411 if (error)
412 err("%s: usb_submit_urb (urb_irq) failed %d",
413 __func__, error);
414 }
415 }
416
417 spin_unlock(&dev->ctl_submit_lock);
418}
419
420static void cm109_toggle_buzzer_async(struct cm109_dev *dev)
421{
422 unsigned long flags;
423
424 spin_lock_irqsave(&dev->ctl_submit_lock, flags);
425
426 if (dev->ctl_urb_pending) {
427 /* URB completion will resubmit */
428 dev->buzzer_pending = 1;
429 } else {
430 dev->ctl_urb_pending = 1;
431 cm109_submit_buzz_toggle(dev);
432 }
433
434 spin_unlock_irqrestore(&dev->ctl_submit_lock, flags);
435}
436
437static void cm109_toggle_buzzer_sync(struct cm109_dev *dev, int on)
438{
439 int error;
440
441 if (on)
442 dev->ctl_data->byte[HID_OR0] |= BUZZER_ON;
443 else
444 dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON;
445
446 error = usb_control_msg(dev->udev,
447 usb_sndctrlpipe(dev->udev, 0),
448 dev->ctl_req->bRequest,
449 dev->ctl_req->bRequestType,
450 le16_to_cpu(dev->ctl_req->wValue),
451 le16_to_cpu(dev->ctl_req->wIndex),
452 dev->ctl_data,
453 USB_PKT_LEN, USB_CTRL_SET_TIMEOUT);
454 if (error && error != EINTR)
455 err("%s: usb_control_msg() failed %d", __func__, error);
456}
457
458static void cm109_stop_traffic(struct cm109_dev *dev)
459{
460 dev->shutdown = 1;
461 /*
462 * Make sure other CPUs see this
463 */
464 smp_wmb();
465
466 usb_kill_urb(dev->urb_ctl);
467 usb_kill_urb(dev->urb_irq);
468
469 cm109_toggle_buzzer_sync(dev, 0);
470
471 dev->shutdown = 0;
472 smp_wmb();
473}
474
475static void cm109_restore_state(struct cm109_dev *dev)
476{
477 if (dev->open) {
478 /*
479 * Restore buzzer state.
480 * This will also kick regular URB submission
481 */
482 cm109_toggle_buzzer_async(dev);
483 }
484}
485
486/******************************************************************************
487 * input event interface
488 *****************************************************************************/
489
490static int cm109_input_open(struct input_dev *idev)
491{
492 struct cm109_dev *dev = input_get_drvdata(idev);
493 int error;
494
495 error = usb_autopm_get_interface(dev->intf);
496 if (error < 0) {
497 err("%s - cannot autoresume, result %d",
498 __func__, error);
499 return error;
500 }
501
502 mutex_lock(&dev->pm_mutex);
503
504 dev->buzzer_state = 0;
505 dev->key_code = -1; /* no keys pressed */
506 dev->keybit = 0xf;
507
508 /* issue INIT */
509 dev->ctl_data->byte[HID_OR0] = HID_OR_GPO_BUZ_SPDIF;
510 dev->ctl_data->byte[HID_OR1] = dev->keybit;
511 dev->ctl_data->byte[HID_OR2] = dev->keybit;
512 dev->ctl_data->byte[HID_OR3] = 0x00;
513
514 error = usb_submit_urb(dev->urb_ctl, GFP_KERNEL);
515 if (error)
516 err("%s: usb_submit_urb (urb_ctl) failed %d", __func__, error);
517 else
518 dev->open = 1;
519
520 mutex_unlock(&dev->pm_mutex);
521
522 if (error)
523 usb_autopm_put_interface(dev->intf);
524
525 return error;
526}
527
528static void cm109_input_close(struct input_dev *idev)
529{
530 struct cm109_dev *dev = input_get_drvdata(idev);
531
532 mutex_lock(&dev->pm_mutex);
533
534 /*
535 * Once we are here event delivery is stopped so we
536 * don't need to worry about someone starting buzzer
537 * again
538 */
539 cm109_stop_traffic(dev);
540 dev->open = 0;
541
542 mutex_unlock(&dev->pm_mutex);
543
544 usb_autopm_put_interface(dev->intf);
545}
546
547static int cm109_input_ev(struct input_dev *idev, unsigned int type,
548 unsigned int code, int value)
549{
550 struct cm109_dev *dev = input_get_drvdata(idev);
551
552#if CM109_DEBUG
553 info("input_ev: type=%u code=%u value=%d", type, code, value);
554#endif
555
556 if (type != EV_SND)
557 return -EINVAL;
558
559 switch (code) {
560 case SND_TONE:
561 case SND_BELL:
562 dev->buzzer_state = !!value;
563 if (!dev->resetting)
564 cm109_toggle_buzzer_async(dev);
565 return 0;
566
567 default:
568 return -EINVAL;
569 }
570}
571
572
573/******************************************************************************
574 * Linux interface and usb initialisation
575 *****************************************************************************/
576
577struct driver_info {
578 char *name;
579};
580
581static const struct driver_info info_cm109 = {
582 .name = "CM109 USB driver",
583};
584
585enum {
586 VENDOR_ID = 0x0d8c, /* C-Media Electronics */
587 PRODUCT_ID_CM109 = 0x000e, /* CM109 defines range 0x0008 - 0x000f */
588};
589
590/* table of devices that work with this driver */
591static const struct usb_device_id cm109_usb_table[] = {
592 {
593 .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
594 USB_DEVICE_ID_MATCH_INT_INFO,
595 .idVendor = VENDOR_ID,
596 .idProduct = PRODUCT_ID_CM109,
597 .bInterfaceClass = USB_CLASS_HID,
598 .bInterfaceSubClass = 0,
599 .bInterfaceProtocol = 0,
600 .driver_info = (kernel_ulong_t) &info_cm109
601 },
602 /* you can add more devices here with product ID 0x0008 - 0x000f */
603 { }
604};
605
606static void cm109_usb_cleanup(struct cm109_dev *dev)
607{
608 if (dev->ctl_req)
609 usb_buffer_free(dev->udev, sizeof(*(dev->ctl_req)),
610 dev->ctl_req, dev->ctl_req_dma);
611 if (dev->ctl_data)
612 usb_buffer_free(dev->udev, USB_PKT_LEN,
613 dev->ctl_data, dev->ctl_dma);
614 if (dev->irq_data)
615 usb_buffer_free(dev->udev, USB_PKT_LEN,
616 dev->irq_data, dev->irq_dma);
617
618 usb_free_urb(dev->urb_irq); /* parameter validation in core/urb */
619 usb_free_urb(dev->urb_ctl); /* parameter validation in core/urb */
620 kfree(dev);
621}
622
623static void cm109_usb_disconnect(struct usb_interface *interface)
624{
625 struct cm109_dev *dev = usb_get_intfdata(interface);
626
627 usb_set_intfdata(interface, NULL);
628 input_unregister_device(dev->idev);
629 cm109_usb_cleanup(dev);
630}
631
632static int cm109_usb_probe(struct usb_interface *intf,
633 const struct usb_device_id *id)
634{
635 struct usb_device *udev = interface_to_usbdev(intf);
636 struct driver_info *nfo = (struct driver_info *)id->driver_info;
637 struct usb_host_interface *interface;
638 struct usb_endpoint_descriptor *endpoint;
639 struct cm109_dev *dev;
640 struct input_dev *input_dev = NULL;
641 int ret, pipe, i;
642 int error = -ENOMEM;
643
644 interface = intf->cur_altsetting;
645 endpoint = &interface->endpoint[0].desc;
646
647 if (!usb_endpoint_is_int_in(endpoint))
648 return -ENODEV;
649
650 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
651 if (!dev)
652 return -ENOMEM;
653
654 spin_lock_init(&dev->ctl_submit_lock);
655 mutex_init(&dev->pm_mutex);
656
657 dev->udev = udev;
658 dev->intf = intf;
659
660 dev->idev = input_dev = input_allocate_device();
661 if (!input_dev)
662 goto err_out;
663
664 /* allocate usb buffers */
665 dev->irq_data = usb_buffer_alloc(udev, USB_PKT_LEN,
666 GFP_KERNEL, &dev->irq_dma);
667 if (!dev->irq_data)
668 goto err_out;
669
670 dev->ctl_data = usb_buffer_alloc(udev, USB_PKT_LEN,
671 GFP_KERNEL, &dev->ctl_dma);
672 if (!dev->ctl_data)
673 goto err_out;
674
675 dev->ctl_req = usb_buffer_alloc(udev, sizeof(*(dev->ctl_req)),
676 GFP_KERNEL, &dev->ctl_req_dma);
677 if (!dev->ctl_req)
678 goto err_out;
679
680 /* allocate urb structures */
681 dev->urb_irq = usb_alloc_urb(0, GFP_KERNEL);
682 if (!dev->urb_irq)
683 goto err_out;
684
685 dev->urb_ctl = usb_alloc_urb(0, GFP_KERNEL);
686 if (!dev->urb_ctl)
687 goto err_out;
688
689 /* get a handle to the interrupt data pipe */
690 pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);
691 ret = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
692 if (ret != USB_PKT_LEN)
693 err("invalid payload size %d, expected %d", ret, USB_PKT_LEN);
694
695 /* initialise irq urb */
696 usb_fill_int_urb(dev->urb_irq, udev, pipe, dev->irq_data,
697 USB_PKT_LEN,
698 cm109_urb_irq_callback, dev, endpoint->bInterval);
699 dev->urb_irq->transfer_dma = dev->irq_dma;
700 dev->urb_irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
701 dev->urb_irq->dev = udev;
702
703 /* initialise ctl urb */
704 dev->ctl_req->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE |
705 USB_DIR_OUT;
706 dev->ctl_req->bRequest = USB_REQ_SET_CONFIGURATION;
707 dev->ctl_req->wValue = cpu_to_le16(0x200);
708 dev->ctl_req->wIndex = cpu_to_le16(interface->desc.bInterfaceNumber);
709 dev->ctl_req->wLength = cpu_to_le16(USB_PKT_LEN);
710
711 usb_fill_control_urb(dev->urb_ctl, udev, usb_sndctrlpipe(udev, 0),
712 (void *)dev->ctl_req, dev->ctl_data, USB_PKT_LEN,
713 cm109_urb_ctl_callback, dev);
714 dev->urb_ctl->setup_dma = dev->ctl_req_dma;
715 dev->urb_ctl->transfer_dma = dev->ctl_dma;
716 dev->urb_ctl->transfer_flags |= URB_NO_SETUP_DMA_MAP |
717 URB_NO_TRANSFER_DMA_MAP;
718 dev->urb_ctl->dev = udev;
719
720 /* find out the physical bus location */
721 usb_make_path(udev, dev->phys, sizeof(dev->phys));
722 strlcat(dev->phys, "/input0", sizeof(dev->phys));
723
724 /* register settings for the input device */
725 input_dev->name = nfo->name;
726 input_dev->phys = dev->phys;
727 usb_to_input_id(udev, &input_dev->id);
728 input_dev->dev.parent = &intf->dev;
729
730 input_set_drvdata(input_dev, dev);
731 input_dev->open = cm109_input_open;
732 input_dev->close = cm109_input_close;
733 input_dev->event = cm109_input_ev;
734
735 input_dev->keycode = dev->keymap;
736 input_dev->keycodesize = sizeof(unsigned char);
737 input_dev->keycodemax = ARRAY_SIZE(dev->keymap);
738
739 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_SND);
740 input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
741
742 /* register available key events */
743 for (i = 0; i < KEYMAP_SIZE; i++) {
744 unsigned short k = keymap(i);
745 dev->keymap[i] = k;
746 __set_bit(k, input_dev->keybit);
747 }
748 __clear_bit(KEY_RESERVED, input_dev->keybit);
749
750 error = input_register_device(dev->idev);
751 if (error)
752 goto err_out;
753
754 usb_set_intfdata(intf, dev);
755
756 return 0;
757
758 err_out:
759 input_free_device(input_dev);
760 cm109_usb_cleanup(dev);
761 return error;
762}
763
764static int cm109_usb_suspend(struct usb_interface *intf, pm_message_t message)
765{
766 struct cm109_dev *dev = usb_get_intfdata(intf);
767
768 info("cm109: usb_suspend (event=%d)", message.event);
769
770 mutex_lock(&dev->pm_mutex);
771 cm109_stop_traffic(dev);
772 mutex_unlock(&dev->pm_mutex);
773
774 return 0;
775}
776
777static int cm109_usb_resume(struct usb_interface *intf)
778{
779 struct cm109_dev *dev = usb_get_intfdata(intf);
780
781 info("cm109: usb_resume");
782
783 mutex_lock(&dev->pm_mutex);
784 cm109_restore_state(dev);
785 mutex_unlock(&dev->pm_mutex);
786
787 return 0;
788}
789
790static int cm109_usb_pre_reset(struct usb_interface *intf)
791{
792 struct cm109_dev *dev = usb_get_intfdata(intf);
793
794 mutex_lock(&dev->pm_mutex);
795
796 /*
797 * Make sure input events don't try to toggle buzzer
798 * while we are resetting
799 */
800 dev->resetting = 1;
801 smp_wmb();
802
803 cm109_stop_traffic(dev);
804
805 return 0;
806}
807
808static int cm109_usb_post_reset(struct usb_interface *intf)
809{
810 struct cm109_dev *dev = usb_get_intfdata(intf);
811
812 dev->resetting = 0;
813 smp_wmb();
814
815 cm109_restore_state(dev);
816
817 mutex_unlock(&dev->pm_mutex);
818
819 return 0;
820}
821
822static struct usb_driver cm109_driver = {
823 .name = "cm109",
824 .probe = cm109_usb_probe,
825 .disconnect = cm109_usb_disconnect,
826 .suspend = cm109_usb_suspend,
827 .resume = cm109_usb_resume,
828 .reset_resume = cm109_usb_resume,
829 .pre_reset = cm109_usb_pre_reset,
830 .post_reset = cm109_usb_post_reset,
831 .id_table = cm109_usb_table,
832 .supports_autosuspend = 1,
833};
834
835static int __init cm109_select_keymap(void)
836{
837 /* Load the phone keymap */
838 if (!strcasecmp(phone, "kip1000")) {
839 keymap = keymap_kip1000;
840 info("Keymap for Komunikate KIP1000 phone loaded");
841 } else if (!strcasecmp(phone, "gtalk")) {
842 keymap = keymap_gtalk;
843 info("Keymap for Genius G-talk phone loaded");
844 } else if (!strcasecmp(phone, "usbph01")) {
845 keymap = keymap_usbph01;
846 info("Keymap for Allied-Telesis Corega USBPH01 phone loaded");
847 } else {
848 err("Unsupported phone: %s", phone);
849 return -EINVAL;
850 }
851
852 return 0;
853}
854
855static int __init cm109_init(void)
856{
857 int err;
858
859 err = cm109_select_keymap();
860 if (err)
861 return err;
862
863 err = usb_register(&cm109_driver);
864 if (err)
865 return err;
866
867 info(DRIVER_DESC ": " DRIVER_VERSION " (C) " DRIVER_AUTHOR);
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");
generated by cgit v1.2.2 (git 2.25.0) at 2025-10-01 01:26:22 -0400