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Merge branch 'akpm' (fixes from Andrew)
[linux-2.6/cjktty.git] / drivers / hid / hid-picolcd_core.c
blob31cd93fc3d4bff26fb0275d102c90270483289e7
1 /***************************************************************************
2 * Copyright (C) 2010-2012 by Bruno Prémont <bonbons@linux-vserver.org> *
3 * *
4 * Based on Logitech G13 driver (v0.4) *
5 * Copyright (C) 2009 by Rick L. Vinyard, Jr. <rvinyard@cs.nmsu.edu> *
6 * *
7 * This program is free software: you can redistribute it and/or modify *
8 * it under the terms of the GNU General Public License as published by *
9 * the Free Software Foundation, version 2 of the License. *
10 * *
11 * This driver is distributed in the hope that it will be useful, but *
12 * WITHOUT ANY WARRANTY; without even the implied warranty of *
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
14 * General Public License for more details. *
15 * *
16 * You should have received a copy of the GNU General Public License *
17 * along with this software. If not see <http://www.gnu.org/licenses/>. *
18 ***************************************************************************/
19
20 #include <linux/hid.h>
21 #include <linux/hid-debug.h>
22 #include <linux/input.h>
23 #include "hid-ids.h"
24 #include "usbhid/usbhid.h"
25 #include <linux/usb.h>
26
27 #include <linux/fb.h>
28 #include <linux/vmalloc.h>
29
30 #include <linux/completion.h>
31 #include <linux/uaccess.h>
32 #include <linux/module.h>
33
34 #include "hid-picolcd.h"
35
36
37 /* Input device
38 *
39 * The PicoLCD has an IR receiver header, a built-in keypad with 5 keys
40 * and header for 4x4 key matrix. The built-in keys are part of the matrix.
41 */
42 static const unsigned short def_keymap[PICOLCD_KEYS] = {
43 KEY_RESERVED, /* none */
44 KEY_BACK, /* col 4 + row 1 */
45 KEY_HOMEPAGE, /* col 3 + row 1 */
46 KEY_RESERVED, /* col 2 + row 1 */
47 KEY_RESERVED, /* col 1 + row 1 */
48 KEY_SCROLLUP, /* col 4 + row 2 */
49 KEY_OK, /* col 3 + row 2 */
50 KEY_SCROLLDOWN, /* col 2 + row 2 */
51 KEY_RESERVED, /* col 1 + row 2 */
52 KEY_RESERVED, /* col 4 + row 3 */
53 KEY_RESERVED, /* col 3 + row 3 */
54 KEY_RESERVED, /* col 2 + row 3 */
55 KEY_RESERVED, /* col 1 + row 3 */
56 KEY_RESERVED, /* col 4 + row 4 */
57 KEY_RESERVED, /* col 3 + row 4 */
58 KEY_RESERVED, /* col 2 + row 4 */
59 KEY_RESERVED, /* col 1 + row 4 */
60 };
61
62
63 /* Find a given report */
64 struct hid_report *picolcd_report(int id, struct hid_device *hdev, int dir)
65 {
66 struct list_head *feature_report_list = &hdev->report_enum[dir].report_list;
67 struct hid_report *report = NULL;
68
69 list_for_each_entry(report, feature_report_list, list) {
70 if (report->id == id)
71 return report;
72 }
73 hid_warn(hdev, "No report with id 0x%x found\n", id);
74 return NULL;
75 }
76
77 /* Submit a report and wait for a reply from device - if device fades away
78 * or does not respond in time, return NULL */
79 struct picolcd_pending *picolcd_send_and_wait(struct hid_device *hdev,
80 int report_id, const u8 *raw_data, int size)
81 {
82 struct picolcd_data *data = hid_get_drvdata(hdev);
83 struct picolcd_pending *work;
84 struct hid_report *report = picolcd_out_report(report_id, hdev);
85 unsigned long flags;
86 int i, j, k;
87
88 if (!report || !data)
89 return NULL;
90 if (data->status & PICOLCD_FAILED)
91 return NULL;
92 work = kzalloc(sizeof(*work), GFP_KERNEL);
93 if (!work)
94 return NULL;
95
96 init_completion(&work->ready);
97 work->out_report = report;
98 work->in_report = NULL;
99 work->raw_size = 0;
100
101 mutex_lock(&data->mutex);
102 spin_lock_irqsave(&data->lock, flags);
103 for (i = k = 0; i < report->maxfield; i++)
104 for (j = 0; j < report->field[i]->report_count; j++) {
105 hid_set_field(report->field[i], j, k < size ? raw_data[k] : 0);
106 k++;
107 }
108 if (data->status & PICOLCD_FAILED) {
109 kfree(work);
110 work = NULL;
111 } else {
112 data->pending = work;
113 usbhid_submit_report(data->hdev, report, USB_DIR_OUT);
114 spin_unlock_irqrestore(&data->lock, flags);
115 wait_for_completion_interruptible_timeout(&work->ready, HZ*2);
116 spin_lock_irqsave(&data->lock, flags);
117 data->pending = NULL;
118 }
119 spin_unlock_irqrestore(&data->lock, flags);
120 mutex_unlock(&data->mutex);
121 return work;
122 }
123
124 /*
125 * input class device
126 */
127 static int picolcd_raw_keypad(struct picolcd_data *data,
128 struct hid_report *report, u8 *raw_data, int size)
129 {
130 /*
131 * Keypad event
132 * First and second data bytes list currently pressed keys,
133 * 0x00 means no key and at most 2 keys may be pressed at same time
134 */
135 int i, j;
136
137 /* determine newly pressed keys */
138 for (i = 0; i < size; i++) {
139 unsigned int key_code;
140 if (raw_data[i] == 0)
141 continue;
142 for (j = 0; j < sizeof(data->pressed_keys); j++)
143 if (data->pressed_keys[j] == raw_data[i])
144 goto key_already_down;
145 for (j = 0; j < sizeof(data->pressed_keys); j++)
146 if (data->pressed_keys[j] == 0) {
147 data->pressed_keys[j] = raw_data[i];
148 break;
149 }
150 input_event(data->input_keys, EV_MSC, MSC_SCAN, raw_data[i]);
151 if (raw_data[i] < PICOLCD_KEYS)
152 key_code = data->keycode[raw_data[i]];
153 else
154 key_code = KEY_UNKNOWN;
155 if (key_code != KEY_UNKNOWN) {
156 dbg_hid(PICOLCD_NAME " got key press for %u:%d",
157 raw_data[i], key_code);
158 input_report_key(data->input_keys, key_code, 1);
159 }
160 input_sync(data->input_keys);
161 key_already_down:
162 continue;
163 }
164
165 /* determine newly released keys */
166 for (j = 0; j < sizeof(data->pressed_keys); j++) {
167 unsigned int key_code;
168 if (data->pressed_keys[j] == 0)
169 continue;
170 for (i = 0; i < size; i++)
171 if (data->pressed_keys[j] == raw_data[i])
172 goto key_still_down;
173 input_event(data->input_keys, EV_MSC, MSC_SCAN, data->pressed_keys[j]);
174 if (data->pressed_keys[j] < PICOLCD_KEYS)
175 key_code = data->keycode[data->pressed_keys[j]];
176 else
177 key_code = KEY_UNKNOWN;
178 if (key_code != KEY_UNKNOWN) {
179 dbg_hid(PICOLCD_NAME " got key release for %u:%d",
180 data->pressed_keys[j], key_code);
181 input_report_key(data->input_keys, key_code, 0);
182 }
183 input_sync(data->input_keys);
184 data->pressed_keys[j] = 0;
185 key_still_down:
186 continue;
187 }
188 return 1;
189 }
190
191 static int picolcd_check_version(struct hid_device *hdev)
192 {
193 struct picolcd_data *data = hid_get_drvdata(hdev);
194 struct picolcd_pending *verinfo;
195 int ret = 0;
196
197 if (!data)
198 return -ENODEV;
199
200 verinfo = picolcd_send_and_wait(hdev, REPORT_VERSION, NULL, 0);
201 if (!verinfo) {
202 hid_err(hdev, "no version response from PicoLCD\n");
203 return -ENODEV;
204 }
205
206 if (verinfo->raw_size == 2) {
207 data->version[0] = verinfo->raw_data[1];
208 data->version[1] = verinfo->raw_data[0];
209 if (data->status & PICOLCD_BOOTLOADER) {
210 hid_info(hdev, "PicoLCD, bootloader version %d.%d\n",
211 verinfo->raw_data[1], verinfo->raw_data[0]);
212 } else {
213 hid_info(hdev, "PicoLCD, firmware version %d.%d\n",
214 verinfo->raw_data[1], verinfo->raw_data[0]);
215 }
216 } else {
217 hid_err(hdev, "confused, got unexpected version response from PicoLCD\n");
218 ret = -EINVAL;
219 }
220 kfree(verinfo);
221 return ret;
222 }
223
224 /*
225 * Reset our device and wait for answer to VERSION request
226 */
227 int picolcd_reset(struct hid_device *hdev)
228 {
229 struct picolcd_data *data = hid_get_drvdata(hdev);
230 struct hid_report *report = picolcd_out_report(REPORT_RESET, hdev);
231 unsigned long flags;
232 int error;
233
234 if (!data || !report || report->maxfield != 1)
235 return -ENODEV;
236
237 spin_lock_irqsave(&data->lock, flags);
238 if (hdev->product == USB_DEVICE_ID_PICOLCD_BOOTLOADER)
239 data->status |= PICOLCD_BOOTLOADER;
240
241 /* perform the reset */
242 hid_set_field(report->field[0], 0, 1);
243 if (data->status & PICOLCD_FAILED) {
244 spin_unlock_irqrestore(&data->lock, flags);
245 return -ENODEV;
246 }
247 usbhid_submit_report(hdev, report, USB_DIR_OUT);
248 spin_unlock_irqrestore(&data->lock, flags);
249
250 error = picolcd_check_version(hdev);
251 if (error)
252 return error;
253
254 picolcd_resume_lcd(data);
255 picolcd_resume_backlight(data);
256 picolcd_fb_refresh(data);
257 picolcd_leds_set(data);
258 return 0;
259 }
260
261 /*
262 * The "operation_mode" sysfs attribute
263 */
264 static ssize_t picolcd_operation_mode_show(struct device *dev,
265 struct device_attribute *attr, char *buf)
266 {
267 struct picolcd_data *data = dev_get_drvdata(dev);
268
269 if (data->status & PICOLCD_BOOTLOADER)
270 return snprintf(buf, PAGE_SIZE, "[bootloader] lcd\n");
271 else
272 return snprintf(buf, PAGE_SIZE, "bootloader [lcd]\n");
273 }
274
275 static ssize_t picolcd_operation_mode_store(struct device *dev,
276 struct device_attribute *attr, const char *buf, size_t count)
277 {
278 struct picolcd_data *data = dev_get_drvdata(dev);
279 struct hid_report *report = NULL;
280 size_t cnt = count;
281 int timeout = data->opmode_delay;
282 unsigned long flags;
283
284 if (cnt >= 3 && strncmp("lcd", buf, 3) == 0) {
285 if (data->status & PICOLCD_BOOTLOADER)
286 report = picolcd_out_report(REPORT_EXIT_FLASHER, data->hdev);
287 buf += 3;
288 cnt -= 3;
289 } else if (cnt >= 10 && strncmp("bootloader", buf, 10) == 0) {
290 if (!(data->status & PICOLCD_BOOTLOADER))
291 report = picolcd_out_report(REPORT_EXIT_KEYBOARD, data->hdev);
292 buf += 10;
293 cnt -= 10;
294 }
295 if (!report)
296 return -EINVAL;
297
298 while (cnt > 0 && (buf[cnt-1] == '\n' || buf[cnt-1] == '\r'))
299 cnt--;
300 if (cnt != 0)
301 return -EINVAL;
302
303 spin_lock_irqsave(&data->lock, flags);
304 hid_set_field(report->field[0], 0, timeout & 0xff);
305 hid_set_field(report->field[0], 1, (timeout >> 8) & 0xff);
306 usbhid_submit_report(data->hdev, report, USB_DIR_OUT);
307 spin_unlock_irqrestore(&data->lock, flags);
308 return count;
309 }
310
311 static DEVICE_ATTR(operation_mode, 0644, picolcd_operation_mode_show,
312 picolcd_operation_mode_store);
313
314 /*
315 * The "operation_mode_delay" sysfs attribute
316 */
317 static ssize_t picolcd_operation_mode_delay_show(struct device *dev,
318 struct device_attribute *attr, char *buf)
319 {
320 struct picolcd_data *data = dev_get_drvdata(dev);
321
322 return snprintf(buf, PAGE_SIZE, "%hu\n", data->opmode_delay);
323 }
324
325 static ssize_t picolcd_operation_mode_delay_store(struct device *dev,
326 struct device_attribute *attr, const char *buf, size_t count)
327 {
328 struct picolcd_data *data = dev_get_drvdata(dev);
329 unsigned u;
330 if (sscanf(buf, "%u", &u) != 1)
331 return -EINVAL;
332 if (u > 30000)
333 return -EINVAL;
334 else
335 data->opmode_delay = u;
336 return count;
337 }
338
339 static DEVICE_ATTR(operation_mode_delay, 0644, picolcd_operation_mode_delay_show,
340 picolcd_operation_mode_delay_store);
341
342 /*
343 * Handle raw report as sent by device
344 */
345 static int picolcd_raw_event(struct hid_device *hdev,
346 struct hid_report *report, u8 *raw_data, int size)
347 {
348 struct picolcd_data *data = hid_get_drvdata(hdev);
349 unsigned long flags;
350 int ret = 0;
351
352 if (!data)
353 return 1;
354
355 if (report->id == REPORT_KEY_STATE) {
356 if (data->input_keys)
357 ret = picolcd_raw_keypad(data, report, raw_data+1, size-1);
358 } else if (report->id == REPORT_IR_DATA) {
359 ret = picolcd_raw_cir(data, report, raw_data+1, size-1);
360 } else {
361 spin_lock_irqsave(&data->lock, flags);
362 /*
363 * We let the caller of picolcd_send_and_wait() check if the
364 * report we got is one of the expected ones or not.
365 */
366 if (data->pending) {
367 memcpy(data->pending->raw_data, raw_data+1, size-1);
368 data->pending->raw_size = size-1;
369 data->pending->in_report = report;
370 complete(&data->pending->ready);
371 }
372 spin_unlock_irqrestore(&data->lock, flags);
373 }
374
375 picolcd_debug_raw_event(data, hdev, report, raw_data, size);
376 return 1;
377 }
378
379 #ifdef CONFIG_PM
380 static int picolcd_suspend(struct hid_device *hdev, pm_message_t message)
381 {
382 if (PMSG_IS_AUTO(message))
383 return 0;
384
385 picolcd_suspend_backlight(hid_get_drvdata(hdev));
386 dbg_hid(PICOLCD_NAME " device ready for suspend\n");
387 return 0;
388 }
389
390 static int picolcd_resume(struct hid_device *hdev)
391 {
392 int ret;
393 ret = picolcd_resume_backlight(hid_get_drvdata(hdev));
394 if (ret)
395 dbg_hid(PICOLCD_NAME " restoring backlight failed: %d\n", ret);
396 return 0;
397 }
398
399 static int picolcd_reset_resume(struct hid_device *hdev)
400 {
401 int ret;
402 ret = picolcd_reset(hdev);
403 if (ret)
404 dbg_hid(PICOLCD_NAME " resetting our device failed: %d\n", ret);
405 ret = picolcd_fb_reset(hid_get_drvdata(hdev), 0);
406 if (ret)
407 dbg_hid(PICOLCD_NAME " restoring framebuffer content failed: %d\n", ret);
408 ret = picolcd_resume_lcd(hid_get_drvdata(hdev));
409 if (ret)
410 dbg_hid(PICOLCD_NAME " restoring lcd failed: %d\n", ret);
411 ret = picolcd_resume_backlight(hid_get_drvdata(hdev));
412 if (ret)
413 dbg_hid(PICOLCD_NAME " restoring backlight failed: %d\n", ret);
414 picolcd_leds_set(hid_get_drvdata(hdev));
415 return 0;
416 }
417 #endif
418
419 /* initialize keypad input device */
420 static int picolcd_init_keys(struct picolcd_data *data,
421 struct hid_report *report)
422 {
423 struct hid_device *hdev = data->hdev;
424 struct input_dev *idev;
425 int error, i;
426
427 if (!report)
428 return -ENODEV;
429 if (report->maxfield != 1 || report->field[0]->report_count != 2 ||
430 report->field[0]->report_size != 8) {
431 hid_err(hdev, "unsupported KEY_STATE report\n");
432 return -EINVAL;
433 }
434
435 idev = input_allocate_device();
436 if (idev == NULL) {
437 hid_err(hdev, "failed to allocate input device\n");
438 return -ENOMEM;
439 }
440 input_set_drvdata(idev, hdev);
441 memcpy(data->keycode, def_keymap, sizeof(def_keymap));
442 idev->name = hdev->name;
443 idev->phys = hdev->phys;
444 idev->uniq = hdev->uniq;
445 idev->id.bustype = hdev->bus;
446 idev->id.vendor = hdev->vendor;
447 idev->id.product = hdev->product;
448 idev->id.version = hdev->version;
449 idev->dev.parent = &hdev->dev;
450 idev->keycode = &data->keycode;
451 idev->keycodemax = PICOLCD_KEYS;
452 idev->keycodesize = sizeof(data->keycode[0]);
453 input_set_capability(idev, EV_MSC, MSC_SCAN);
454 set_bit(EV_REP, idev->evbit);
455 for (i = 0; i < PICOLCD_KEYS; i++)
456 input_set_capability(idev, EV_KEY, data->keycode[i]);
457 error = input_register_device(idev);
458 if (error) {
459 hid_err(hdev, "error registering the input device\n");
460 input_free_device(idev);
461 return error;
462 }
463 data->input_keys = idev;
464 return 0;
465 }
466
467 static void picolcd_exit_keys(struct picolcd_data *data)
468 {
469 struct input_dev *idev = data->input_keys;
470
471 data->input_keys = NULL;
472 if (idev)
473 input_unregister_device(idev);
474 }
475
476 static int picolcd_probe_lcd(struct hid_device *hdev, struct picolcd_data *data)
477 {
478 int error;
479
480 /* Setup keypad input device */
481 error = picolcd_init_keys(data, picolcd_in_report(REPORT_KEY_STATE, hdev));
482 if (error)
483 goto err;
484
485 /* Setup CIR input device */
486 error = picolcd_init_cir(data, picolcd_in_report(REPORT_IR_DATA, hdev));
487 if (error)
488 goto err;
489
490 /* Set up the framebuffer device */
491 error = picolcd_init_framebuffer(data);
492 if (error)
493 goto err;
494
495 /* Setup lcd class device */
496 error = picolcd_init_lcd(data, picolcd_out_report(REPORT_CONTRAST, hdev));
497 if (error)
498 goto err;
499
500 /* Setup backlight class device */
501 error = picolcd_init_backlight(data, picolcd_out_report(REPORT_BRIGHTNESS, hdev));
502 if (error)
503 goto err;
504
505 /* Setup the LED class devices */
506 error = picolcd_init_leds(data, picolcd_out_report(REPORT_LED_STATE, hdev));
507 if (error)
508 goto err;
509
510 picolcd_init_devfs(data, picolcd_out_report(REPORT_EE_READ, hdev),
511 picolcd_out_report(REPORT_EE_WRITE, hdev),
512 picolcd_out_report(REPORT_READ_MEMORY, hdev),
513 picolcd_out_report(REPORT_WRITE_MEMORY, hdev),
514 picolcd_out_report(REPORT_RESET, hdev));
515 return 0;
516 err:
517 picolcd_exit_leds(data);
518 picolcd_exit_backlight(data);
519 picolcd_exit_lcd(data);
520 picolcd_exit_framebuffer(data);
521 picolcd_exit_cir(data);
522 picolcd_exit_keys(data);
523 return error;
524 }
525
526 static int picolcd_probe_bootloader(struct hid_device *hdev, struct picolcd_data *data)
527 {
528 picolcd_init_devfs(data, NULL, NULL,
529 picolcd_out_report(REPORT_BL_READ_MEMORY, hdev),
530 picolcd_out_report(REPORT_BL_WRITE_MEMORY, hdev), NULL);
531 return 0;
532 }
533
534 static int picolcd_probe(struct hid_device *hdev,
535 const struct hid_device_id *id)
536 {
537 struct picolcd_data *data;
538 int error = -ENOMEM;
539
540 dbg_hid(PICOLCD_NAME " hardware probe...\n");
541
542 /*
543 * Let's allocate the picolcd data structure, set some reasonable
544 * defaults, and associate it with the device
545 */
546 data = kzalloc(sizeof(struct picolcd_data), GFP_KERNEL);
547 if (data == NULL) {
548 hid_err(hdev, "can't allocate space for Minibox PicoLCD device data\n");
549 error = -ENOMEM;
550 goto err_no_cleanup;
551 }
552
553 spin_lock_init(&data->lock);
554 mutex_init(&data->mutex);
555 data->hdev = hdev;
556 data->opmode_delay = 5000;
557 if (hdev->product == USB_DEVICE_ID_PICOLCD_BOOTLOADER)
558 data->status |= PICOLCD_BOOTLOADER;
559 hid_set_drvdata(hdev, data);
560
561 /* Parse the device reports and start it up */
562 error = hid_parse(hdev);
563 if (error) {
564 hid_err(hdev, "device report parse failed\n");
565 goto err_cleanup_data;
566 }
567
568 error = hid_hw_start(hdev, 0);
569 if (error) {
570 hid_err(hdev, "hardware start failed\n");
571 goto err_cleanup_data;
572 }
573
574 error = hid_hw_open(hdev);
575 if (error) {
576 hid_err(hdev, "failed to open input interrupt pipe for key and IR events\n");
577 goto err_cleanup_hid_hw;
578 }
579
580 error = device_create_file(&hdev->dev, &dev_attr_operation_mode_delay);
581 if (error) {
582 hid_err(hdev, "failed to create sysfs attributes\n");
583 goto err_cleanup_hid_ll;
584 }
585
586 error = device_create_file(&hdev->dev, &dev_attr_operation_mode);
587 if (error) {
588 hid_err(hdev, "failed to create sysfs attributes\n");
589 goto err_cleanup_sysfs1;
590 }
591
592 if (data->status & PICOLCD_BOOTLOADER)
593 error = picolcd_probe_bootloader(hdev, data);
594 else
595 error = picolcd_probe_lcd(hdev, data);
596 if (error)
597 goto err_cleanup_sysfs2;
598
599 dbg_hid(PICOLCD_NAME " activated and initialized\n");
600 return 0;
601
602 err_cleanup_sysfs2:
603 device_remove_file(&hdev->dev, &dev_attr_operation_mode);
604 err_cleanup_sysfs1:
605 device_remove_file(&hdev->dev, &dev_attr_operation_mode_delay);
606 err_cleanup_hid_ll:
607 hid_hw_close(hdev);
608 err_cleanup_hid_hw:
609 hid_hw_stop(hdev);
610 err_cleanup_data:
611 kfree(data);
612 err_no_cleanup:
613 hid_set_drvdata(hdev, NULL);
614
615 return error;
616 }
617
618 static void picolcd_remove(struct hid_device *hdev)
619 {
620 struct picolcd_data *data = hid_get_drvdata(hdev);
621 unsigned long flags;
622
623 dbg_hid(PICOLCD_NAME " hardware remove...\n");
624 spin_lock_irqsave(&data->lock, flags);
625 data->status |= PICOLCD_FAILED;
626 spin_unlock_irqrestore(&data->lock, flags);
627
628 picolcd_exit_devfs(data);
629 device_remove_file(&hdev->dev, &dev_attr_operation_mode);
630 device_remove_file(&hdev->dev, &dev_attr_operation_mode_delay);
631 hid_hw_close(hdev);
632 hid_hw_stop(hdev);
633
634 /* Shortcut potential pending reply that will never arrive */
635 spin_lock_irqsave(&data->lock, flags);
636 if (data->pending)
637 complete(&data->pending->ready);
638 spin_unlock_irqrestore(&data->lock, flags);
639
640 /* Cleanup LED */
641 picolcd_exit_leds(data);
642 /* Clean up the framebuffer */
643 picolcd_exit_backlight(data);
644 picolcd_exit_lcd(data);
645 picolcd_exit_framebuffer(data);
646 /* Cleanup input */
647 picolcd_exit_cir(data);
648 picolcd_exit_keys(data);
649
650 hid_set_drvdata(hdev, NULL);
651 mutex_destroy(&data->mutex);
652 /* Finally, clean up the picolcd data itself */
653 kfree(data);
654 }
655
656 static const struct hid_device_id picolcd_devices[] = {
657 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
658 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
659 { }
660 };
661 MODULE_DEVICE_TABLE(hid, picolcd_devices);
662
663 static struct hid_driver picolcd_driver = {
664 .name = "hid-picolcd",
665 .id_table = picolcd_devices,
666 .probe = picolcd_probe,
667 .remove = picolcd_remove,
668 .raw_event = picolcd_raw_event,
669 #ifdef CONFIG_PM
670 .suspend = picolcd_suspend,
671 .resume = picolcd_resume,
672 .reset_resume = picolcd_reset_resume,
673 #endif
674 };
675 module_hid_driver(picolcd_driver);
676
677 MODULE_DESCRIPTION("Minibox graphics PicoLCD Driver");
678 MODULE_LICENSE("GPL v2");
CJK support for tty framebuffer vt