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e48a9c62 | 1 | /* |
2 | * Driver for Logitech Quickcam Messenger usb video camera | |
3 | * Copyright (C) Jaya Kumar | |
4 | * | |
5 | * This work was sponsored by CIS(M) Sdn Bhd. | |
6 | * History: | |
7 | * 05/08/2006 - Jaya Kumar | |
8 | * I wrote this based on the konicawc by Simon Evans. | |
9 | * - | |
10 | * Full credit for reverse engineering and creating an initial | |
11 | * working linux driver for the VV6422 goes to the qce-ga project by | |
12 | * Tuukka Toivonen, Jochen Hoenicke, Peter McConnell, | |
13 | * Cristiano De Michele, Georg Acher, Jean-Frederic Clere as well as | |
14 | * others. | |
15 | * --- | |
16 | * This program is free software; you can redistribute it and/or modify | |
17 | * it under the terms of the GNU General Public License as published by | |
18 | * the Free Software Foundation; either version 2 of the License, or | |
19 | * (at your option) any later version. | |
20 | * | |
21 | * This program is distributed in the hope that it will be useful, | |
22 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
23 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
24 | * GNU General Public License for more details. | |
25 | * | |
26 | * You should have received a copy of the GNU General Public License | |
27 | * along with this program; if not, write to the Free Software | |
28 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
29 | * | |
30 | */ | |
31 | ||
32 | #include <linux/kernel.h> | |
33 | #include <linux/module.h> | |
34 | #include <linux/init.h> | |
35 | #include <linux/input.h> | |
20c5426f | 36 | #include <linux/usb/input.h> |
e48a9c62 | 37 | |
38 | #include "usbvideo.h" | |
39 | #include "quickcam_messenger.h" | |
40 | ||
41 | /* | |
42 | * Version Information | |
43 | */ | |
44 | ||
45 | #ifdef CONFIG_USB_DEBUG | |
46 | static int debug; | |
47 | #define DEBUG(n, format, arg...) \ | |
48 | if (n <= debug) { \ | |
4126a8f5 | 49 | printk(KERN_DEBUG __FILE__ ":%s(): " format "\n", __func__ , ## arg); \ |
e48a9c62 | 50 | } |
51 | #else | |
52 | #define DEBUG(n, arg...) | |
ff699e6b | 53 | static const int debug; |
e48a9c62 | 54 | #endif |
55 | ||
56 | #define DRIVER_VERSION "v0.01" | |
57 | #define DRIVER_DESC "Logitech Quickcam Messenger USB" | |
58 | ||
59 | #define USB_LOGITECH_VENDOR_ID 0x046D | |
60 | #define USB_QCM_PRODUCT_ID 0x08F0 | |
61 | ||
62 | #define MAX_CAMERAS 1 | |
63 | ||
64 | #define MAX_COLOUR 32768 | |
65 | #define MAX_HUE 32768 | |
66 | #define MAX_BRIGHTNESS 32768 | |
67 | #define MAX_CONTRAST 32768 | |
68 | #define MAX_WHITENESS 32768 | |
69 | ||
70 | static int size = SIZE_320X240; | |
71 | static int colour = MAX_COLOUR; | |
72 | static int hue = MAX_HUE; | |
73 | static int brightness = MAX_BRIGHTNESS; | |
74 | static int contrast = MAX_CONTRAST; | |
75 | static int whiteness = MAX_WHITENESS; | |
76 | ||
77 | static struct usbvideo *cams; | |
78 | ||
79 | static struct usb_device_id qcm_table [] = { | |
80 | { USB_DEVICE(USB_LOGITECH_VENDOR_ID, USB_QCM_PRODUCT_ID) }, | |
81 | { } | |
82 | }; | |
83 | MODULE_DEVICE_TABLE(usb, qcm_table); | |
84 | ||
85 | #ifdef CONFIG_INPUT | |
86 | static void qcm_register_input(struct qcm *cam, struct usb_device *dev) | |
87 | { | |
88 | struct input_dev *input_dev; | |
b07b4783 | 89 | int error; |
e48a9c62 | 90 | |
91 | usb_make_path(dev, cam->input_physname, sizeof(cam->input_physname)); | |
92 | strncat(cam->input_physname, "/input0", sizeof(cam->input_physname)); | |
93 | ||
94 | cam->input = input_dev = input_allocate_device(); | |
95 | if (!input_dev) { | |
96 | warn("insufficient mem for cam input device"); | |
97 | return; | |
98 | } | |
99 | ||
100 | input_dev->name = "QCM button"; | |
101 | input_dev->phys = cam->input_physname; | |
102 | usb_to_input_id(dev, &input_dev->id); | |
2c8a3a33 | 103 | input_dev->dev.parent = &dev->dev; |
e48a9c62 | 104 | |
7b19ada2 JS |
105 | input_dev->evbit[0] = BIT_MASK(EV_KEY); |
106 | input_dev->keybit[BIT_WORD(BTN_0)] = BIT_MASK(BTN_0); | |
e48a9c62 | 107 | |
b07b4783 DT |
108 | error = input_register_device(cam->input); |
109 | if (error) { | |
110 | warn("Failed to register camera's input device, err: %d\n", | |
111 | error); | |
112 | input_free_device(cam->input); | |
113 | cam->input = NULL; | |
114 | } | |
e48a9c62 | 115 | } |
116 | ||
117 | static void qcm_unregister_input(struct qcm *cam) | |
118 | { | |
119 | if (cam->input) { | |
120 | input_unregister_device(cam->input); | |
121 | cam->input = NULL; | |
122 | } | |
123 | } | |
124 | ||
125 | static void qcm_report_buttonstat(struct qcm *cam) | |
126 | { | |
127 | if (cam->input) { | |
128 | input_report_key(cam->input, BTN_0, cam->button_sts); | |
129 | input_sync(cam->input); | |
130 | } | |
131 | } | |
132 | ||
7d12e780 | 133 | static void qcm_int_irq(struct urb *urb) |
e48a9c62 | 134 | { |
135 | int ret; | |
136 | struct uvd *uvd = urb->context; | |
137 | struct qcm *cam; | |
138 | ||
139 | if (!CAMERA_IS_OPERATIONAL(uvd)) | |
140 | return; | |
141 | ||
142 | if (!uvd->streaming) | |
143 | return; | |
144 | ||
145 | uvd->stats.urb_count++; | |
146 | ||
147 | if (urb->status < 0) | |
148 | uvd->stats.iso_err_count++; | |
149 | else { | |
150 | if (urb->actual_length > 0 ) { | |
151 | cam = (struct qcm *) uvd->user_data; | |
152 | if (cam->button_sts_buf == 0x88) | |
153 | cam->button_sts = 0x0; | |
154 | else if (cam->button_sts_buf == 0x80) | |
155 | cam->button_sts = 0x1; | |
156 | qcm_report_buttonstat(cam); | |
157 | } | |
158 | } | |
159 | ||
160 | ret = usb_submit_urb(urb, GFP_ATOMIC); | |
161 | if (ret < 0) | |
162 | err("usb_submit_urb error (%d)", ret); | |
163 | } | |
164 | ||
165 | static int qcm_setup_input_int(struct qcm *cam, struct uvd *uvd) | |
166 | { | |
167 | int errflag; | |
168 | usb_fill_int_urb(cam->button_urb, uvd->dev, | |
169 | usb_rcvintpipe(uvd->dev, uvd->video_endp + 1), | |
170 | &cam->button_sts_buf, | |
171 | 1, | |
172 | qcm_int_irq, | |
173 | uvd, 16); | |
174 | ||
175 | errflag = usb_submit_urb(cam->button_urb, GFP_KERNEL); | |
176 | if (errflag) | |
177 | err ("usb_submit_int ret %d", errflag); | |
178 | return errflag; | |
179 | } | |
180 | ||
181 | static void qcm_stop_int_data(struct qcm *cam) | |
182 | { | |
183 | usb_kill_urb(cam->button_urb); | |
184 | } | |
185 | ||
186 | static int qcm_alloc_int_urb(struct qcm *cam) | |
187 | { | |
188 | cam->button_urb = usb_alloc_urb(0, GFP_KERNEL); | |
189 | ||
190 | if (!cam->button_urb) | |
191 | return -ENOMEM; | |
192 | ||
193 | return 0; | |
194 | } | |
195 | ||
196 | static void qcm_free_int(struct qcm *cam) | |
197 | { | |
926b1e90 | 198 | usb_free_urb(cam->button_urb); |
e48a9c62 | 199 | } |
200 | #endif /* CONFIG_INPUT */ | |
201 | ||
202 | static int qcm_stv_setb(struct usb_device *dev, u16 reg, u8 val) | |
203 | { | |
204 | int ret; | |
205 | ||
206 | /* we'll wait up to 3 slices but no more */ | |
207 | ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), | |
208 | 0x04, USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
209 | reg, 0, &val, 1, 3*HZ); | |
210 | return ret; | |
211 | } | |
212 | ||
a954b668 | 213 | static int qcm_stv_setw(struct usb_device *dev, u16 reg, __le16 val) |
e48a9c62 | 214 | { |
215 | int ret; | |
216 | ||
217 | /* we'll wait up to 3 slices but no more */ | |
218 | ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), | |
219 | 0x04, USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
220 | reg, 0, &val, 2, 3*HZ); | |
221 | return ret; | |
222 | } | |
223 | ||
224 | static int qcm_stv_getw(struct usb_device *dev, unsigned short reg, | |
225 | __le16 *val) | |
226 | { | |
227 | int ret; | |
228 | ||
229 | /* we'll wait up to 3 slices but no more */ | |
230 | ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
231 | 0x04, USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE, | |
232 | reg, 0, val, 2, 3*HZ); | |
233 | return ret; | |
234 | } | |
235 | ||
236 | static int qcm_camera_on(struct uvd *uvd) | |
237 | { | |
238 | int ret; | |
239 | CHECK_RET(ret, qcm_stv_setb(uvd->dev, STV_ISO_ENABLE, 0x01)); | |
240 | return 0; | |
241 | } | |
242 | ||
243 | static int qcm_camera_off(struct uvd *uvd) | |
244 | { | |
245 | int ret; | |
246 | CHECK_RET(ret, qcm_stv_setb(uvd->dev, STV_ISO_ENABLE, 0x00)); | |
247 | return 0; | |
248 | } | |
249 | ||
250 | static void qcm_hsv2rgb(u16 hue, u16 sat, u16 val, u16 *r, u16 *g, u16 *b) | |
251 | { | |
252 | unsigned int segment, valsat; | |
253 | signed int h = (signed int) hue; | |
254 | unsigned int s = (sat - 32768) * 2; /* rescale */ | |
255 | unsigned int v = val; | |
256 | unsigned int p; | |
257 | ||
258 | /* | |
c84e6036 | 259 | the registers controlling gain are 8 bit of which |
e48a9c62 | 260 | we affect only the last 4 bits with our gain. |
261 | we know that if saturation is 0, (unsaturated) then | |
262 | we're grayscale (center axis of the colour cone) so | |
263 | we set rgb=value. we use a formula obtained from | |
264 | wikipedia to map the cone to the RGB plane. it's | |
265 | as follows for the human value case of h=0..360, | |
266 | s=0..1, v=0..1 | |
267 | h_i = h/60 % 6 , f = h/60 - h_i , p = v(1-s) | |
268 | q = v(1 - f*s) , t = v(1 - (1-f)s) | |
269 | h_i==0 => r=v , g=t, b=p | |
270 | h_i==1 => r=q , g=v, b=p | |
271 | h_i==2 => r=p , g=v, b=t | |
272 | h_i==3 => r=p , g=q, b=v | |
273 | h_i==4 => r=t , g=p, b=v | |
274 | h_i==5 => r=v , g=p, b=q | |
275 | the bottom side (the point) and the stuff just up | |
276 | of that is black so we simplify those two cases. | |
277 | */ | |
278 | if (sat < 32768) { | |
279 | /* anything less than this is unsaturated */ | |
280 | *r = val; | |
281 | *g = val; | |
282 | *b = val; | |
283 | return; | |
284 | } | |
285 | if (val <= (0xFFFF/8)) { | |
286 | /* anything less than this is black */ | |
287 | *r = 0; | |
288 | *g = 0; | |
289 | *b = 0; | |
290 | return; | |
291 | } | |
292 | ||
293 | /* the rest of this code is copying tukkat's | |
294 | implementation of the hsv2rgb conversion as taken | |
295 | from qc-usb-messenger code. the 10923 is 0xFFFF/6 | |
296 | to divide the cone into 6 sectors. */ | |
297 | ||
298 | segment = (h + 10923) & 0xFFFF; | |
299 | segment = segment*3 >> 16; /* 0..2: 0=R, 1=G, 2=B */ | |
300 | hue -= segment * 21845; /* -10923..10923 */ | |
301 | h = hue; | |
302 | h *= 3; | |
303 | valsat = v*s >> 16; /* 0..65534 */ | |
304 | p = v - valsat; | |
305 | if (h >= 0) { | |
306 | unsigned int t = v - (valsat * (32769 - h) >> 15); | |
307 | switch (segment) { | |
308 | case 0: /* R-> */ | |
309 | *r = v; | |
310 | *g = t; | |
311 | *b = p; | |
312 | break; | |
313 | case 1: /* G-> */ | |
314 | *r = p; | |
315 | *g = v; | |
316 | *b = t; | |
317 | break; | |
318 | case 2: /* B-> */ | |
319 | *r = t; | |
320 | *g = p; | |
321 | *b = v; | |
322 | break; | |
323 | } | |
324 | } else { | |
325 | unsigned int q = v - (valsat * (32769 + h) >> 15); | |
326 | switch (segment) { | |
327 | case 0: /* ->R */ | |
328 | *r = v; | |
329 | *g = p; | |
330 | *b = q; | |
331 | break; | |
332 | case 1: /* ->G */ | |
333 | *r = q; | |
334 | *g = v; | |
335 | *b = p; | |
336 | break; | |
337 | case 2: /* ->B */ | |
338 | *r = p; | |
339 | *g = q; | |
340 | *b = v; | |
341 | break; | |
342 | } | |
343 | } | |
344 | } | |
345 | ||
346 | static int qcm_sensor_set_gains(struct uvd *uvd, u16 hue, | |
347 | u16 saturation, u16 value) | |
348 | { | |
349 | int ret; | |
d6144028 | 350 | u16 r=0,g=0,b=0; |
e48a9c62 | 351 | |
352 | /* this code is based on qc-usb-messenger */ | |
353 | qcm_hsv2rgb(hue, saturation, value, &r, &g, &b); | |
354 | ||
355 | r >>= 12; | |
356 | g >>= 12; | |
357 | b >>= 12; | |
358 | ||
359 | /* min val is 8 */ | |
360 | r = max((u16) 8, r); | |
361 | g = max((u16) 8, g); | |
362 | b = max((u16) 8, b); | |
363 | ||
364 | r |= 0x30; | |
365 | g |= 0x30; | |
366 | b |= 0x30; | |
367 | ||
368 | /* set the r,g,b gain registers */ | |
369 | CHECK_RET(ret, qcm_stv_setb(uvd->dev, 0x0509, r)); | |
370 | CHECK_RET(ret, qcm_stv_setb(uvd->dev, 0x050A, g)); | |
371 | CHECK_RET(ret, qcm_stv_setb(uvd->dev, 0x050B, b)); | |
372 | ||
373 | /* doing as qc-usb did */ | |
374 | CHECK_RET(ret, qcm_stv_setb(uvd->dev, 0x050C, 0x2A)); | |
375 | CHECK_RET(ret, qcm_stv_setb(uvd->dev, 0x050D, 0x01)); | |
376 | CHECK_RET(ret, qcm_stv_setb(uvd->dev, 0x143F, 0x01)); | |
377 | ||
378 | return 0; | |
379 | } | |
380 | ||
381 | static int qcm_sensor_set_exposure(struct uvd *uvd, int exposure) | |
382 | { | |
383 | int ret; | |
384 | int formedval; | |
385 | ||
386 | /* calculation was from qc-usb-messenger driver */ | |
387 | formedval = ( exposure >> 12 ); | |
388 | ||
389 | /* max value for formedval is 14 */ | |
390 | formedval = min(formedval, 14); | |
391 | ||
392 | CHECK_RET(ret, qcm_stv_setb(uvd->dev, | |
393 | 0x143A, 0xF0 | formedval)); | |
394 | CHECK_RET(ret, qcm_stv_setb(uvd->dev, 0x143F, 0x01)); | |
395 | return 0; | |
396 | } | |
397 | ||
398 | static int qcm_sensor_setlevels(struct uvd *uvd, int brightness, int contrast, | |
399 | int hue, int colour) | |
400 | { | |
401 | int ret; | |
402 | /* brightness is exposure, contrast is gain, colour is saturation */ | |
403 | CHECK_RET(ret, | |
404 | qcm_sensor_set_exposure(uvd, brightness)); | |
405 | CHECK_RET(ret, qcm_sensor_set_gains(uvd, hue, colour, contrast)); | |
406 | ||
407 | return 0; | |
408 | } | |
409 | ||
410 | static int qcm_sensor_setsize(struct uvd *uvd, u8 size) | |
411 | { | |
412 | int ret; | |
413 | ||
414 | CHECK_RET(ret, qcm_stv_setb(uvd->dev, 0x1505, size)); | |
415 | return 0; | |
416 | } | |
417 | ||
418 | static int qcm_sensor_set_shutter(struct uvd *uvd, int whiteness) | |
419 | { | |
420 | int ret; | |
421 | /* some rescaling as done by the qc-usb-messenger code */ | |
422 | if (whiteness > 0xC000) | |
423 | whiteness = 0xC000 + (whiteness & 0x3FFF)*8; | |
424 | ||
425 | CHECK_RET(ret, qcm_stv_setb(uvd->dev, 0x143D, | |
426 | (whiteness >> 8) & 0xFF)); | |
427 | CHECK_RET(ret, qcm_stv_setb(uvd->dev, 0x143E, | |
428 | (whiteness >> 16) & 0x03)); | |
429 | CHECK_RET(ret, qcm_stv_setb(uvd->dev, 0x143F, 0x01)); | |
430 | ||
431 | return 0; | |
432 | } | |
433 | ||
434 | static int qcm_sensor_init(struct uvd *uvd) | |
435 | { | |
436 | struct qcm *cam = (struct qcm *) uvd->user_data; | |
437 | int ret; | |
438 | int i; | |
439 | ||
0c71bf1c | 440 | for (i=0; i < ARRAY_SIZE(regval_table) ; i++) { |
e48a9c62 | 441 | CHECK_RET(ret, qcm_stv_setb(uvd->dev, |
442 | regval_table[i].reg, | |
443 | regval_table[i].val)); | |
444 | } | |
445 | ||
446 | CHECK_RET(ret, qcm_stv_setw(uvd->dev, 0x15c1, | |
447 | cpu_to_le16(ISOC_PACKET_SIZE))); | |
448 | CHECK_RET(ret, qcm_stv_setb(uvd->dev, 0x15c3, 0x08)); | |
449 | CHECK_RET(ret, ret = qcm_stv_setb(uvd->dev, 0x143f, 0x01)); | |
450 | ||
451 | CHECK_RET(ret, qcm_stv_setb(uvd->dev, STV_ISO_ENABLE, 0x00)); | |
452 | ||
453 | CHECK_RET(ret, qcm_sensor_setsize(uvd, camera_sizes[cam->size].cmd)); | |
454 | ||
455 | CHECK_RET(ret, qcm_sensor_setlevels(uvd, uvd->vpic.brightness, | |
456 | uvd->vpic.contrast, uvd->vpic.hue, uvd->vpic.colour)); | |
457 | ||
458 | CHECK_RET(ret, qcm_sensor_set_shutter(uvd, uvd->vpic.whiteness)); | |
459 | CHECK_RET(ret, qcm_sensor_setsize(uvd, camera_sizes[cam->size].cmd)); | |
460 | ||
461 | return 0; | |
462 | } | |
463 | ||
464 | static int qcm_set_camera_size(struct uvd *uvd) | |
465 | { | |
466 | int ret; | |
467 | struct qcm *cam = (struct qcm *) uvd->user_data; | |
468 | ||
469 | CHECK_RET(ret, qcm_sensor_setsize(uvd, camera_sizes[cam->size].cmd)); | |
470 | cam->width = camera_sizes[cam->size].width; | |
471 | cam->height = camera_sizes[cam->size].height; | |
472 | uvd->videosize = VIDEOSIZE(cam->width, cam->height); | |
473 | ||
474 | return 0; | |
475 | } | |
476 | ||
477 | static int qcm_setup_on_open(struct uvd *uvd) | |
478 | { | |
479 | int ret; | |
480 | ||
481 | CHECK_RET(ret, qcm_sensor_set_gains(uvd, uvd->vpic.hue, | |
482 | uvd->vpic.colour, uvd->vpic.contrast)); | |
483 | CHECK_RET(ret, qcm_sensor_set_exposure(uvd, uvd->vpic.brightness)); | |
484 | CHECK_RET(ret, qcm_sensor_set_shutter(uvd, uvd->vpic.whiteness)); | |
485 | CHECK_RET(ret, qcm_set_camera_size(uvd)); | |
486 | CHECK_RET(ret, qcm_camera_on(uvd)); | |
487 | return 0; | |
488 | } | |
489 | ||
490 | static void qcm_adjust_picture(struct uvd *uvd) | |
491 | { | |
492 | int ret; | |
493 | struct qcm *cam = (struct qcm *) uvd->user_data; | |
494 | ||
495 | ret = qcm_camera_off(uvd); | |
496 | if (ret) { | |
497 | err("can't turn camera off. abandoning pic adjustment"); | |
498 | return; | |
499 | } | |
500 | ||
501 | /* if there's been a change in contrast, hue, or | |
502 | colour then we need to recalculate hsv in order | |
503 | to update gains */ | |
504 | if ((cam->contrast != uvd->vpic.contrast) || | |
505 | (cam->hue != uvd->vpic.hue) || | |
506 | (cam->colour != uvd->vpic.colour)) { | |
507 | cam->contrast = uvd->vpic.contrast; | |
508 | cam->hue = uvd->vpic.hue; | |
509 | cam->colour = uvd->vpic.colour; | |
510 | ret = qcm_sensor_set_gains(uvd, cam->hue, cam->colour, | |
511 | cam->contrast); | |
512 | if (ret) { | |
513 | err("can't set gains. abandoning pic adjustment"); | |
514 | return; | |
515 | } | |
516 | } | |
517 | ||
518 | if (cam->brightness != uvd->vpic.brightness) { | |
519 | cam->brightness = uvd->vpic.brightness; | |
520 | ret = qcm_sensor_set_exposure(uvd, cam->brightness); | |
521 | if (ret) { | |
522 | err("can't set exposure. abandoning pic adjustment"); | |
523 | return; | |
524 | } | |
525 | } | |
526 | ||
527 | if (cam->whiteness != uvd->vpic.whiteness) { | |
528 | cam->whiteness = uvd->vpic.whiteness; | |
529 | qcm_sensor_set_shutter(uvd, cam->whiteness); | |
530 | if (ret) { | |
531 | err("can't set shutter. abandoning pic adjustment"); | |
532 | return; | |
533 | } | |
534 | } | |
535 | ||
536 | ret = qcm_camera_on(uvd); | |
537 | if (ret) { | |
538 | err("can't reenable camera. pic adjustment failed"); | |
539 | return; | |
540 | } | |
541 | } | |
542 | ||
543 | static int qcm_process_frame(struct uvd *uvd, u8 *cdata, int framelen) | |
544 | { | |
545 | int datalen; | |
546 | int totaldata; | |
547 | struct framehdr { | |
548 | __be16 id; | |
549 | __be16 len; | |
550 | }; | |
551 | struct framehdr *fhdr; | |
552 | ||
553 | totaldata = 0; | |
554 | while (framelen) { | |
555 | fhdr = (struct framehdr *) cdata; | |
556 | datalen = be16_to_cpu(fhdr->len); | |
557 | framelen -= 4; | |
558 | cdata += 4; | |
559 | ||
560 | if ((fhdr->id) == cpu_to_be16(0x8001)) { | |
561 | RingQueue_Enqueue(&uvd->dp, marker, 4); | |
562 | totaldata += 4; | |
563 | continue; | |
564 | } | |
565 | if ((fhdr->id & cpu_to_be16(0xFF00)) == cpu_to_be16(0x0200)) { | |
566 | RingQueue_Enqueue(&uvd->dp, cdata, datalen); | |
567 | totaldata += datalen; | |
568 | } | |
569 | framelen -= datalen; | |
570 | cdata += datalen; | |
571 | } | |
572 | return totaldata; | |
573 | } | |
574 | ||
575 | static int qcm_compress_iso(struct uvd *uvd, struct urb *dataurb) | |
576 | { | |
577 | int totlen; | |
578 | int i; | |
579 | unsigned char *cdata; | |
580 | ||
581 | totlen=0; | |
582 | for (i = 0; i < dataurb->number_of_packets; i++) { | |
583 | int n = dataurb->iso_frame_desc[i].actual_length; | |
584 | int st = dataurb->iso_frame_desc[i].status; | |
585 | ||
586 | cdata = dataurb->transfer_buffer + | |
587 | dataurb->iso_frame_desc[i].offset; | |
588 | ||
589 | if (st < 0) { | |
590 | warn("Data error: packet=%d. len=%d. status=%d.", | |
591 | i, n, st); | |
592 | uvd->stats.iso_err_count++; | |
593 | continue; | |
594 | } | |
595 | if (!n) | |
596 | continue; | |
597 | ||
598 | totlen += qcm_process_frame(uvd, cdata, n); | |
599 | } | |
600 | return totlen; | |
601 | } | |
602 | ||
603 | static void resubmit_urb(struct uvd *uvd, struct urb *urb) | |
604 | { | |
605 | int ret; | |
606 | ||
607 | urb->dev = uvd->dev; | |
608 | ret = usb_submit_urb(urb, GFP_ATOMIC); | |
609 | if (ret) | |
610 | err("usb_submit_urb error (%d)", ret); | |
611 | } | |
612 | ||
7d12e780 | 613 | static void qcm_isoc_irq(struct urb *urb) |
e48a9c62 | 614 | { |
615 | int len; | |
616 | struct uvd *uvd = urb->context; | |
617 | ||
618 | if (!CAMERA_IS_OPERATIONAL(uvd)) | |
619 | return; | |
620 | ||
621 | if (!uvd->streaming) | |
622 | return; | |
623 | ||
624 | uvd->stats.urb_count++; | |
625 | ||
626 | if (!urb->actual_length) { | |
627 | resubmit_urb(uvd, urb); | |
628 | return; | |
629 | } | |
630 | ||
631 | len = qcm_compress_iso(uvd, urb); | |
632 | resubmit_urb(uvd, urb); | |
633 | uvd->stats.urb_length = len; | |
634 | uvd->stats.data_count += len; | |
635 | if (len) | |
636 | RingQueue_WakeUpInterruptible(&uvd->dp); | |
637 | } | |
638 | ||
639 | static int qcm_start_data(struct uvd *uvd) | |
640 | { | |
641 | struct qcm *cam = (struct qcm *) uvd->user_data; | |
642 | int i; | |
643 | int errflag; | |
644 | int pktsz; | |
645 | int err; | |
646 | ||
647 | pktsz = uvd->iso_packet_len; | |
648 | if (!CAMERA_IS_OPERATIONAL(uvd)) { | |
649 | err("Camera is not operational"); | |
650 | return -EFAULT; | |
651 | } | |
652 | ||
653 | err = usb_set_interface(uvd->dev, uvd->iface, uvd->ifaceAltActive); | |
654 | if (err < 0) { | |
655 | err("usb_set_interface error"); | |
656 | uvd->last_error = err; | |
657 | return -EBUSY; | |
658 | } | |
659 | ||
660 | for (i=0; i < USBVIDEO_NUMSBUF; i++) { | |
661 | int j, k; | |
662 | struct urb *urb = uvd->sbuf[i].urb; | |
663 | urb->dev = uvd->dev; | |
664 | urb->context = uvd; | |
665 | urb->pipe = usb_rcvisocpipe(uvd->dev, uvd->video_endp); | |
666 | urb->interval = 1; | |
667 | urb->transfer_flags = URB_ISO_ASAP; | |
668 | urb->transfer_buffer = uvd->sbuf[i].data; | |
669 | urb->complete = qcm_isoc_irq; | |
670 | urb->number_of_packets = FRAMES_PER_DESC; | |
671 | urb->transfer_buffer_length = pktsz * FRAMES_PER_DESC; | |
672 | for (j=k=0; j < FRAMES_PER_DESC; j++, k += pktsz) { | |
673 | urb->iso_frame_desc[j].offset = k; | |
674 | urb->iso_frame_desc[j].length = pktsz; | |
675 | } | |
676 | } | |
677 | ||
678 | uvd->streaming = 1; | |
679 | uvd->curframe = -1; | |
680 | for (i=0; i < USBVIDEO_NUMSBUF; i++) { | |
681 | errflag = usb_submit_urb(uvd->sbuf[i].urb, GFP_KERNEL); | |
682 | if (errflag) | |
683 | err ("usb_submit_isoc(%d) ret %d", i, errflag); | |
684 | } | |
685 | ||
686 | CHECK_RET(err, qcm_setup_input_int(cam, uvd)); | |
687 | CHECK_RET(err, qcm_camera_on(uvd)); | |
688 | return 0; | |
689 | } | |
690 | ||
691 | static void qcm_stop_data(struct uvd *uvd) | |
692 | { | |
693 | struct qcm *cam = (struct qcm *) uvd->user_data; | |
694 | int i, j; | |
695 | int ret; | |
696 | ||
697 | if ((uvd == NULL) || (!uvd->streaming) || (uvd->dev == NULL)) | |
698 | return; | |
699 | ||
700 | ret = qcm_camera_off(uvd); | |
701 | if (ret) | |
702 | warn("couldn't turn the cam off."); | |
703 | ||
704 | uvd->streaming = 0; | |
705 | ||
706 | /* Unschedule all of the iso td's */ | |
707 | for (i=0; i < USBVIDEO_NUMSBUF; i++) | |
708 | usb_kill_urb(uvd->sbuf[i].urb); | |
709 | ||
710 | qcm_stop_int_data(cam); | |
711 | ||
712 | if (!uvd->remove_pending) { | |
713 | /* Set packet size to 0 */ | |
714 | j = usb_set_interface(uvd->dev, uvd->iface, | |
715 | uvd->ifaceAltInactive); | |
716 | if (j < 0) { | |
717 | err("usb_set_interface() error %d.", j); | |
718 | uvd->last_error = j; | |
719 | } | |
720 | } | |
721 | } | |
722 | ||
723 | static void qcm_process_isoc(struct uvd *uvd, struct usbvideo_frame *frame) | |
724 | { | |
725 | struct qcm *cam = (struct qcm *) uvd->user_data; | |
726 | int x; | |
727 | struct rgb *rgbL0; | |
728 | struct rgb *rgbL1; | |
729 | struct bayL0 *bayL0; | |
730 | struct bayL1 *bayL1; | |
731 | int hor,ver,hordel,verdel; | |
732 | assert(frame != NULL); | |
733 | ||
734 | switch (cam->size) { | |
735 | case SIZE_160X120: | |
736 | hor = 162; ver = 124; hordel = 1; verdel = 2; | |
737 | break; | |
738 | case SIZE_320X240: | |
739 | default: | |
740 | hor = 324; ver = 248; hordel = 2; verdel = 4; | |
741 | break; | |
742 | } | |
743 | ||
744 | if (frame->scanstate == ScanState_Scanning) { | |
745 | while (RingQueue_GetLength(&uvd->dp) >= | |
746 | 4 + (hor*verdel + hordel)) { | |
747 | if ((RING_QUEUE_PEEK(&uvd->dp, 0) == 0x00) && | |
748 | (RING_QUEUE_PEEK(&uvd->dp, 1) == 0xff) && | |
749 | (RING_QUEUE_PEEK(&uvd->dp, 2) == 0x00) && | |
750 | (RING_QUEUE_PEEK(&uvd->dp, 3) == 0xff)) { | |
751 | frame->curline = 0; | |
752 | frame->scanstate = ScanState_Lines; | |
753 | frame->frameState = FrameState_Grabbing; | |
754 | RING_QUEUE_DEQUEUE_BYTES(&uvd->dp, 4); | |
755 | /* | |
756 | * if we're starting, we need to discard the first | |
757 | * 4 lines of y bayer data | |
758 | * and the first 2 gr elements of x bayer data | |
759 | */ | |
760 | RING_QUEUE_DEQUEUE_BYTES(&uvd->dp, | |
761 | (hor*verdel + hordel)); | |
762 | break; | |
763 | } | |
764 | RING_QUEUE_DEQUEUE_BYTES(&uvd->dp, 1); | |
765 | } | |
766 | } | |
767 | ||
768 | if (frame->scanstate == ScanState_Scanning) | |
769 | return; | |
770 | ||
771 | /* now we can start processing bayer data so long as we have at least | |
772 | * 2 lines worth of data. this is the simplest demosaicing method that | |
773 | * I could think of. I use each 2x2 bayer element without interpolation | |
774 | * to generate 4 rgb pixels. | |
775 | */ | |
776 | while ( frame->curline < cam->height && | |
777 | (RingQueue_GetLength(&uvd->dp) >= hor*2)) { | |
778 | /* get 2 lines of bayer for demosaicing | |
779 | * into 2 lines of RGB */ | |
780 | RingQueue_Dequeue(&uvd->dp, cam->scratch, hor*2); | |
781 | bayL0 = (struct bayL0 *) cam->scratch; | |
782 | bayL1 = (struct bayL1 *) (cam->scratch + hor); | |
783 | /* frame->curline is the rgb y line */ | |
784 | rgbL0 = (struct rgb *) | |
785 | ( frame->data + (cam->width*3*frame->curline)); | |
786 | /* w/2 because we're already doing 2 pixels */ | |
787 | rgbL1 = rgbL0 + (cam->width/2); | |
788 | ||
789 | for (x=0; x < cam->width; x+=2) { | |
790 | rgbL0->r = bayL0->r; | |
791 | rgbL0->g = bayL0->g; | |
792 | rgbL0->b = bayL1->b; | |
793 | ||
794 | rgbL0->r2 = bayL0->r; | |
795 | rgbL0->g2 = bayL1->g; | |
796 | rgbL0->b2 = bayL1->b; | |
797 | ||
798 | rgbL1->r = bayL0->r; | |
799 | rgbL1->g = bayL1->g; | |
800 | rgbL1->b = bayL1->b; | |
801 | ||
802 | rgbL1->r2 = bayL0->r; | |
803 | rgbL1->g2 = bayL1->g; | |
804 | rgbL1->b2 = bayL1->b; | |
805 | ||
806 | rgbL0++; | |
807 | rgbL1++; | |
808 | ||
809 | bayL0++; | |
810 | bayL1++; | |
811 | } | |
812 | ||
813 | frame->seqRead_Length += cam->width*3*2; | |
814 | frame->curline += 2; | |
815 | } | |
816 | /* See if we filled the frame */ | |
817 | if (frame->curline == cam->height) { | |
818 | frame->frameState = FrameState_Done_Hold; | |
819 | frame->curline = 0; | |
820 | uvd->curframe = -1; | |
821 | uvd->stats.frame_num++; | |
822 | } | |
823 | } | |
824 | ||
825 | /* taken from konicawc */ | |
826 | static int qcm_set_video_mode(struct uvd *uvd, struct video_window *vw) | |
827 | { | |
828 | int ret; | |
829 | int newsize; | |
830 | int oldsize; | |
831 | int x = vw->width; | |
832 | int y = vw->height; | |
833 | struct qcm *cam = (struct qcm *) uvd->user_data; | |
834 | ||
835 | if (x > 0 && y > 0) { | |
836 | DEBUG(2, "trying to find size %d,%d", x, y); | |
837 | for (newsize = 0; newsize <= MAX_FRAME_SIZE; newsize++) { | |
838 | if ((camera_sizes[newsize].width == x) && | |
839 | (camera_sizes[newsize].height == y)) | |
840 | break; | |
841 | } | |
842 | } else | |
843 | newsize = cam->size; | |
844 | ||
845 | if (newsize > MAX_FRAME_SIZE) { | |
846 | DEBUG(1, "couldn't find size %d,%d", x, y); | |
847 | return -EINVAL; | |
848 | } | |
849 | ||
850 | if (newsize == cam->size) { | |
851 | DEBUG(1, "Nothing to do"); | |
852 | return 0; | |
853 | } | |
854 | ||
855 | qcm_stop_data(uvd); | |
856 | ||
857 | if (cam->size != newsize) { | |
858 | oldsize = cam->size; | |
859 | cam->size = newsize; | |
860 | ret = qcm_set_camera_size(uvd); | |
861 | if (ret) { | |
862 | err("Couldn't set camera size, err=%d",ret); | |
863 | /* restore the original size */ | |
864 | cam->size = oldsize; | |
865 | return ret; | |
866 | } | |
867 | } | |
868 | ||
869 | /* Flush the input queue and clear any current frame in progress */ | |
870 | ||
871 | RingQueue_Flush(&uvd->dp); | |
872 | if (uvd->curframe != -1) { | |
873 | uvd->frame[uvd->curframe].curline = 0; | |
874 | uvd->frame[uvd->curframe].seqRead_Length = 0; | |
875 | uvd->frame[uvd->curframe].seqRead_Index = 0; | |
876 | } | |
877 | ||
878 | CHECK_RET(ret, qcm_start_data(uvd)); | |
879 | return 0; | |
880 | } | |
881 | ||
882 | static int qcm_configure_video(struct uvd *uvd) | |
883 | { | |
884 | int ret; | |
885 | memset(&uvd->vpic, 0, sizeof(uvd->vpic)); | |
886 | memset(&uvd->vpic_old, 0x55, sizeof(uvd->vpic_old)); | |
887 | ||
888 | uvd->vpic.colour = colour; | |
889 | uvd->vpic.hue = hue; | |
890 | uvd->vpic.brightness = brightness; | |
891 | uvd->vpic.contrast = contrast; | |
892 | uvd->vpic.whiteness = whiteness; | |
893 | uvd->vpic.depth = 24; | |
894 | uvd->vpic.palette = VIDEO_PALETTE_RGB24; | |
895 | ||
896 | memset(&uvd->vcap, 0, sizeof(uvd->vcap)); | |
897 | strcpy(uvd->vcap.name, "QCM USB Camera"); | |
898 | uvd->vcap.type = VID_TYPE_CAPTURE; | |
899 | uvd->vcap.channels = 1; | |
900 | uvd->vcap.audios = 0; | |
901 | ||
902 | uvd->vcap.minwidth = camera_sizes[SIZE_160X120].width; | |
903 | uvd->vcap.minheight = camera_sizes[SIZE_160X120].height; | |
904 | uvd->vcap.maxwidth = camera_sizes[SIZE_320X240].width; | |
905 | uvd->vcap.maxheight = camera_sizes[SIZE_320X240].height; | |
906 | ||
907 | memset(&uvd->vchan, 0, sizeof(uvd->vchan)); | |
908 | uvd->vchan.flags = 0 ; | |
909 | uvd->vchan.tuners = 0; | |
910 | uvd->vchan.channel = 0; | |
911 | uvd->vchan.type = VIDEO_TYPE_CAMERA; | |
912 | strcpy(uvd->vchan.name, "Camera"); | |
913 | ||
914 | CHECK_RET(ret, qcm_sensor_init(uvd)); | |
915 | return 0; | |
916 | } | |
917 | ||
918 | static int qcm_probe(struct usb_interface *intf, | |
919 | const struct usb_device_id *devid) | |
920 | { | |
921 | int err; | |
922 | struct uvd *uvd; | |
923 | struct usb_device *dev = interface_to_usbdev(intf); | |
924 | struct qcm *cam; | |
925 | size_t buffer_size; | |
926 | unsigned char video_ep; | |
927 | struct usb_host_interface *interface; | |
928 | struct usb_endpoint_descriptor *endpoint; | |
929 | int i,j; | |
930 | unsigned int ifacenum, ifacenum_inact=0; | |
931 | __le16 sensor_id; | |
932 | ||
933 | /* we don't support multiconfig cams */ | |
934 | if (dev->descriptor.bNumConfigurations != 1) | |
935 | return -ENODEV; | |
936 | ||
937 | /* first check for the video interface and not | |
938 | * the audio interface */ | |
939 | interface = &intf->cur_altsetting[0]; | |
940 | if ((interface->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC) | |
941 | || (interface->desc.bInterfaceSubClass != | |
942 | USB_CLASS_VENDOR_SPEC)) | |
943 | return -ENODEV; | |
944 | ||
945 | /* | |
946 | walk through each endpoint in each setting in the interface | |
947 | stop when we find the one that's an isochronous IN endpoint. | |
948 | */ | |
949 | for (i=0; i < intf->num_altsetting; i++) { | |
950 | interface = &intf->cur_altsetting[i]; | |
951 | ifacenum = interface->desc.bAlternateSetting; | |
952 | /* walk the end points */ | |
953 | for (j=0; j < interface->desc.bNumEndpoints; j++) { | |
954 | endpoint = &interface->endpoint[j].desc; | |
955 | ||
956 | if ((endpoint->bEndpointAddress & | |
957 | USB_ENDPOINT_DIR_MASK) != USB_DIR_IN) | |
958 | continue; /* not input then not good */ | |
959 | ||
960 | buffer_size = le16_to_cpu(endpoint->wMaxPacketSize); | |
961 | if (!buffer_size) { | |
962 | ifacenum_inact = ifacenum; | |
963 | continue; /* 0 pkt size is not what we want */ | |
964 | } | |
965 | ||
966 | if ((endpoint->bmAttributes & | |
967 | USB_ENDPOINT_XFERTYPE_MASK) == | |
968 | USB_ENDPOINT_XFER_ISOC) { | |
969 | video_ep = endpoint->bEndpointAddress; | |
970 | /* break out of the search */ | |
971 | goto good_videoep; | |
972 | } | |
973 | } | |
974 | } | |
975 | /* failed out since nothing useful was found */ | |
976 | err("No suitable endpoint was found\n"); | |
977 | return -ENODEV; | |
978 | ||
979 | good_videoep: | |
980 | /* disable isochronous stream before doing anything else */ | |
981 | err = qcm_stv_setb(dev, STV_ISO_ENABLE, 0); | |
982 | if (err < 0) { | |
983 | err("Failed to disable sensor stream"); | |
984 | return -EIO; | |
985 | } | |
986 | ||
987 | /* | |
988 | Check that this is the same unknown sensor that is known to work. This | |
989 | sensor is suspected to be the ST VV6422C001. I'll check the same value | |
990 | that the qc-usb driver checks. This value is probably not even the | |
991 | sensor ID since it matches the USB dev ID. Oh well. If it doesn't | |
992 | match, it's probably a diff sensor so exit and apologize. | |
993 | */ | |
994 | err = qcm_stv_getw(dev, CMOS_SENSOR_IDREV, &sensor_id); | |
995 | if (err < 0) { | |
996 | err("Couldn't read sensor values. Err %d\n",err); | |
997 | return err; | |
998 | } | |
999 | if (sensor_id != cpu_to_le16(0x08F0)) { | |
1000 | err("Sensor ID %x != %x. Unsupported. Sorry\n", | |
1001 | le16_to_cpu(sensor_id), (0x08F0)); | |
1002 | return -ENODEV; | |
1003 | } | |
1004 | ||
1005 | uvd = usbvideo_AllocateDevice(cams); | |
1006 | if (!uvd) | |
1007 | return -ENOMEM; | |
1008 | ||
1009 | cam = (struct qcm *) uvd->user_data; | |
1010 | ||
1011 | /* buf for doing demosaicing */ | |
1012 | cam->scratch = kmalloc(324*2, GFP_KERNEL); | |
1013 | if (!cam->scratch) /* uvd freed in dereg */ | |
1014 | return -ENOMEM; | |
1015 | ||
1016 | /* yes, if we fail after here, cam->scratch gets freed | |
1017 | by qcm_free_uvd */ | |
1018 | ||
1019 | err = qcm_alloc_int_urb(cam); | |
1020 | if (err < 0) | |
1021 | return err; | |
1022 | ||
1023 | /* yes, if we fail after here, int urb gets freed | |
1024 | by qcm_free_uvd */ | |
1025 | ||
1026 | RESTRICT_TO_RANGE(size, SIZE_160X120, SIZE_320X240); | |
1027 | cam->width = camera_sizes[size].width; | |
1028 | cam->height = camera_sizes[size].height; | |
1029 | cam->size = size; | |
1030 | ||
1031 | uvd->debug = debug; | |
1032 | uvd->flags = 0; | |
1033 | uvd->dev = dev; | |
1034 | uvd->iface = intf->altsetting->desc.bInterfaceNumber; | |
1035 | uvd->ifaceAltActive = ifacenum; | |
1036 | uvd->ifaceAltInactive = ifacenum_inact; | |
1037 | uvd->video_endp = video_ep; | |
1038 | uvd->iso_packet_len = buffer_size; | |
1039 | uvd->paletteBits = 1L << VIDEO_PALETTE_RGB24; | |
1040 | uvd->defaultPalette = VIDEO_PALETTE_RGB24; | |
1041 | uvd->canvas = VIDEOSIZE(320, 240); | |
1042 | uvd->videosize = VIDEOSIZE(cam->width, cam->height); | |
1043 | err = qcm_configure_video(uvd); | |
1044 | if (err) { | |
1045 | err("failed to configure video settings"); | |
1046 | return err; | |
1047 | } | |
1048 | ||
1049 | err = usbvideo_RegisterVideoDevice(uvd); | |
1050 | if (err) { /* the uvd gets freed in Deregister */ | |
1051 | err("usbvideo_RegisterVideoDevice() failed."); | |
1052 | return err; | |
1053 | } | |
1054 | ||
1055 | uvd->max_frame_size = (320 * 240 * 3); | |
1056 | qcm_register_input(cam, dev); | |
1057 | usb_set_intfdata(intf, uvd); | |
1058 | return 0; | |
1059 | } | |
1060 | ||
1061 | static void qcm_free_uvd(struct uvd *uvd) | |
1062 | { | |
1063 | struct qcm *cam = (struct qcm *) uvd->user_data; | |
1064 | ||
1065 | kfree(cam->scratch); | |
1066 | qcm_unregister_input(cam); | |
1067 | qcm_free_int(cam); | |
1068 | } | |
1069 | ||
1070 | static struct usbvideo_cb qcm_driver = { | |
1071 | .probe = qcm_probe, | |
1072 | .setupOnOpen = qcm_setup_on_open, | |
1073 | .processData = qcm_process_isoc, | |
1074 | .setVideoMode = qcm_set_video_mode, | |
1075 | .startDataPump = qcm_start_data, | |
1076 | .stopDataPump = qcm_stop_data, | |
1077 | .adjustPicture = qcm_adjust_picture, | |
1078 | .userFree = qcm_free_uvd | |
1079 | }; | |
1080 | ||
1081 | static int __init qcm_init(void) | |
1082 | { | |
1083 | info(DRIVER_DESC " " DRIVER_VERSION); | |
1084 | ||
1085 | return usbvideo_register( | |
1086 | &cams, | |
1087 | MAX_CAMERAS, | |
1088 | sizeof(struct qcm), | |
1089 | "QCM", | |
1090 | &qcm_driver, | |
1091 | THIS_MODULE, | |
1092 | qcm_table); | |
1093 | } | |
1094 | ||
1095 | static void __exit qcm_exit(void) | |
1096 | { | |
1097 | usbvideo_Deregister(&cams); | |
1098 | } | |
1099 | ||
1100 | module_param(size, int, 0); | |
1101 | MODULE_PARM_DESC(size, "Initial Size 0: 160x120 1: 320x240"); | |
1102 | module_param(colour, int, 0); | |
1103 | MODULE_PARM_DESC(colour, "Initial colour"); | |
1104 | module_param(hue, int, 0); | |
1105 | MODULE_PARM_DESC(hue, "Initial hue"); | |
1106 | module_param(brightness, int, 0); | |
1107 | MODULE_PARM_DESC(brightness, "Initial brightness"); | |
1108 | module_param(contrast, int, 0); | |
1109 | MODULE_PARM_DESC(contrast, "Initial contrast"); | |
1110 | module_param(whiteness, int, 0); | |
1111 | MODULE_PARM_DESC(whiteness, "Initial whiteness"); | |
1112 | ||
1113 | #ifdef CONFIG_USB_DEBUG | |
1114 | module_param(debug, int, S_IRUGO | S_IWUSR); | |
1115 | MODULE_PARM_DESC(debug, "Debug level: 0-9 (default=0)"); | |
1116 | #endif | |
1117 | ||
1118 | module_init(qcm_init); | |
1119 | module_exit(qcm_exit); | |
1120 | ||
1121 | MODULE_LICENSE("GPL"); | |
1122 | MODULE_AUTHOR("Jaya Kumar"); | |
1123 | MODULE_DESCRIPTION("QCM USB Camera"); | |
1124 | MODULE_SUPPORTED_DEVICE("QCM USB Camera"); |