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1da177e4 LT |
1 | /* |
2 | * Endpoints (formerly known as AOX) se401 USB Camera Driver | |
3 | * | |
4 | * Copyright (c) 2000 Jeroen B. Vreeken (pe1rxq@amsat.org) | |
5 | * | |
6 | * Still somewhat based on the Linux ov511 driver. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the | |
10 | * Free Software Foundation; either version 2 of the License, or (at your | |
11 | * option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
15 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 | * for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software Foundation, | |
20 | * Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
21 | * | |
22 | * | |
23 | * Thanks to Endpoints Inc. (www.endpoints.com) for making documentation on | |
24 | * their chipset available and supporting me while writing this driver. | |
25 | * - Jeroen Vreeken | |
26 | */ | |
27 | ||
28 | static const char version[] = "0.24"; | |
29 | ||
30 | #include <linux/config.h> | |
31 | #include <linux/module.h> | |
32 | #include <linux/init.h> | |
33 | #include <linux/vmalloc.h> | |
34 | #include <linux/slab.h> | |
35 | #include <linux/pagemap.h> | |
36 | #include <linux/usb.h> | |
37 | #include "se401.h" | |
38 | ||
39 | static int flickerless=0; | |
40 | static int video_nr = -1; | |
41 | ||
42 | static struct usb_device_id device_table [] = { | |
43 | { USB_DEVICE(0x03e8, 0x0004) },/* Endpoints/Aox SE401 */ | |
44 | { USB_DEVICE(0x0471, 0x030b) },/* Philips PCVC665K */ | |
45 | { USB_DEVICE(0x047d, 0x5001) },/* Kensington 67014 */ | |
46 | { USB_DEVICE(0x047d, 0x5002) },/* Kensington 6701(5/7) */ | |
47 | { USB_DEVICE(0x047d, 0x5003) },/* Kensington 67016 */ | |
48 | { } | |
49 | }; | |
50 | ||
51 | MODULE_DEVICE_TABLE(usb, device_table); | |
52 | ||
53 | MODULE_AUTHOR("Jeroen Vreeken <pe1rxq@amsat.org>"); | |
54 | MODULE_DESCRIPTION("SE401 USB Camera Driver"); | |
55 | MODULE_LICENSE("GPL"); | |
56 | module_param(flickerless, int, 0); | |
57 | MODULE_PARM_DESC(flickerless, "Net frequency to adjust exposure time to (0/50/60)"); | |
58 | module_param(video_nr, int, 0); | |
59 | ||
60 | static struct usb_driver se401_driver; | |
61 | ||
62 | ||
63 | /********************************************************************** | |
64 | * | |
65 | * Memory management | |
66 | * | |
67 | **********************************************************************/ | |
68 | static void *rvmalloc(unsigned long size) | |
69 | { | |
70 | void *mem; | |
71 | unsigned long adr; | |
72 | ||
73 | size = PAGE_ALIGN(size); | |
74 | mem = vmalloc_32(size); | |
75 | if (!mem) | |
76 | return NULL; | |
77 | ||
78 | memset(mem, 0, size); /* Clear the ram out, no junk to the user */ | |
79 | adr = (unsigned long) mem; | |
80 | while (size > 0) { | |
81 | SetPageReserved(vmalloc_to_page((void *)adr)); | |
82 | adr += PAGE_SIZE; | |
83 | size -= PAGE_SIZE; | |
84 | } | |
85 | ||
86 | return mem; | |
87 | } | |
88 | ||
89 | static void rvfree(void *mem, unsigned long size) | |
90 | { | |
91 | unsigned long adr; | |
92 | ||
93 | if (!mem) | |
94 | return; | |
95 | ||
96 | adr = (unsigned long) mem; | |
97 | while ((long) size > 0) { | |
98 | ClearPageReserved(vmalloc_to_page((void *)adr)); | |
99 | adr += PAGE_SIZE; | |
100 | size -= PAGE_SIZE; | |
101 | } | |
102 | vfree(mem); | |
103 | } | |
104 | ||
105 | ||
106 | ||
107 | /**************************************************************************** | |
108 | * | |
109 | * se401 register read/write functions | |
110 | * | |
111 | ***************************************************************************/ | |
112 | ||
113 | static int se401_sndctrl(int set, struct usb_se401 *se401, unsigned short req, | |
114 | unsigned short value, unsigned char *cp, int size) | |
115 | { | |
116 | return usb_control_msg ( | |
117 | se401->dev, | |
118 | set ? usb_sndctrlpipe(se401->dev, 0) : usb_rcvctrlpipe(se401->dev, 0), | |
119 | req, | |
120 | (set ? USB_DIR_OUT : USB_DIR_IN) | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
121 | value, | |
122 | 0, | |
123 | cp, | |
124 | size, | |
125 | 1000 | |
126 | ); | |
127 | } | |
128 | ||
129 | static int se401_set_feature(struct usb_se401 *se401, unsigned short selector, | |
130 | unsigned short param) | |
131 | { | |
132 | /* specs say that the selector (address) should go in the value field | |
133 | and the param in index, but in the logs of the windows driver they do | |
134 | this the other way around... | |
135 | */ | |
136 | return usb_control_msg ( | |
137 | se401->dev, | |
138 | usb_sndctrlpipe(se401->dev, 0), | |
139 | SE401_REQ_SET_EXT_FEATURE, | |
140 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
141 | param, | |
142 | selector, | |
143 | NULL, | |
144 | 0, | |
145 | 1000 | |
146 | ); | |
147 | } | |
148 | ||
149 | static unsigned short se401_get_feature(struct usb_se401 *se401, | |
150 | unsigned short selector) | |
151 | { | |
152 | /* For 'set' the selecetor should be in index, not sure if the spec is | |
153 | wrong here to.... | |
154 | */ | |
155 | unsigned char cp[2]; | |
156 | usb_control_msg ( | |
157 | se401->dev, | |
158 | usb_rcvctrlpipe(se401->dev, 0), | |
159 | SE401_REQ_GET_EXT_FEATURE, | |
160 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
161 | 0, | |
162 | selector, | |
163 | cp, | |
164 | 2, | |
165 | 1000 | |
166 | ); | |
167 | return cp[0]+cp[1]*256; | |
168 | } | |
169 | ||
170 | /**************************************************************************** | |
171 | * | |
172 | * Camera control | |
173 | * | |
174 | ***************************************************************************/ | |
175 | ||
176 | ||
177 | static int se401_send_pict(struct usb_se401 *se401) | |
178 | { | |
179 | se401_set_feature(se401, HV7131_REG_TITL, se401->expose_l);/* integration time low */ | |
180 | se401_set_feature(se401, HV7131_REG_TITM, se401->expose_m);/* integration time mid */ | |
181 | se401_set_feature(se401, HV7131_REG_TITU, se401->expose_h);/* integration time mid */ | |
182 | se401_set_feature(se401, HV7131_REG_ARLV, se401->resetlevel);/* reset level value */ | |
183 | se401_set_feature(se401, HV7131_REG_ARCG, se401->rgain);/* red color gain */ | |
184 | se401_set_feature(se401, HV7131_REG_AGCG, se401->ggain);/* green color gain */ | |
185 | se401_set_feature(se401, HV7131_REG_ABCG, se401->bgain);/* blue color gain */ | |
186 | ||
187 | return 0; | |
188 | } | |
189 | ||
190 | static void se401_set_exposure(struct usb_se401 *se401, int brightness) | |
191 | { | |
192 | int integration=brightness<<5; | |
193 | ||
194 | if (flickerless==50) { | |
195 | integration=integration-integration%106667; | |
196 | } | |
197 | if (flickerless==60) { | |
198 | integration=integration-integration%88889; | |
199 | } | |
200 | se401->brightness=integration>>5; | |
201 | se401->expose_h=(integration>>16)&0xff; | |
202 | se401->expose_m=(integration>>8)&0xff; | |
203 | se401->expose_l=integration&0xff; | |
204 | } | |
205 | ||
206 | static int se401_get_pict(struct usb_se401 *se401, struct video_picture *p) | |
207 | { | |
208 | p->brightness=se401->brightness; | |
209 | if (se401->enhance) { | |
210 | p->whiteness=32768; | |
211 | } else { | |
212 | p->whiteness=0; | |
213 | } | |
214 | p->colour=65535; | |
215 | p->contrast=65535; | |
216 | p->hue=se401->rgain<<10; | |
217 | p->palette=se401->palette; | |
218 | p->depth=3; /* rgb24 */ | |
219 | return 0; | |
220 | } | |
221 | ||
222 | ||
223 | static int se401_set_pict(struct usb_se401 *se401, struct video_picture *p) | |
224 | { | |
225 | if (p->palette != VIDEO_PALETTE_RGB24) | |
226 | return 1; | |
227 | se401->palette=p->palette; | |
228 | if (p->hue!=se401->hue) { | |
229 | se401->rgain= p->hue>>10; | |
230 | se401->bgain= 0x40-(p->hue>>10); | |
231 | se401->hue=p->hue; | |
232 | } | |
233 | if (p->brightness!=se401->brightness) { | |
234 | se401_set_exposure(se401, p->brightness); | |
235 | } | |
236 | if (p->whiteness>=32768) { | |
237 | se401->enhance=1; | |
238 | } else { | |
239 | se401->enhance=0; | |
240 | } | |
241 | se401_send_pict(se401); | |
242 | se401_send_pict(se401); | |
243 | return 0; | |
244 | } | |
245 | ||
246 | /* | |
247 | Hyundai have some really nice docs about this and other sensor related | |
248 | stuff on their homepage: www.hei.co.kr | |
249 | */ | |
250 | static void se401_auto_resetlevel(struct usb_se401 *se401) | |
251 | { | |
252 | unsigned int ahrc, alrc; | |
253 | int oldreset=se401->resetlevel; | |
254 | ||
255 | /* For some reason this normally read-only register doesn't get reset | |
256 | to zero after reading them just once... | |
257 | */ | |
258 | se401_get_feature(se401, HV7131_REG_HIREFNOH); | |
259 | se401_get_feature(se401, HV7131_REG_HIREFNOL); | |
260 | se401_get_feature(se401, HV7131_REG_LOREFNOH); | |
261 | se401_get_feature(se401, HV7131_REG_LOREFNOL); | |
262 | ahrc=256*se401_get_feature(se401, HV7131_REG_HIREFNOH) + | |
263 | se401_get_feature(se401, HV7131_REG_HIREFNOL); | |
264 | alrc=256*se401_get_feature(se401, HV7131_REG_LOREFNOH) + | |
265 | se401_get_feature(se401, HV7131_REG_LOREFNOL); | |
266 | ||
267 | /* Not an exact science, but it seems to work pretty well... */ | |
268 | if (alrc > 10) { | |
269 | while (alrc>=10 && se401->resetlevel < 63) { | |
270 | se401->resetlevel++; | |
271 | alrc /=2; | |
272 | } | |
273 | } else if (ahrc > 20) { | |
274 | while (ahrc>=20 && se401->resetlevel > 0) { | |
275 | se401->resetlevel--; | |
276 | ahrc /=2; | |
277 | } | |
278 | } | |
279 | if (se401->resetlevel!=oldreset) | |
280 | se401_set_feature(se401, HV7131_REG_ARLV, se401->resetlevel); | |
281 | ||
282 | return; | |
283 | } | |
284 | ||
285 | /* irq handler for snapshot button */ | |
286 | static void se401_button_irq(struct urb *urb, struct pt_regs *regs) | |
287 | { | |
288 | struct usb_se401 *se401 = urb->context; | |
289 | int status; | |
290 | ||
291 | if (!se401->dev) { | |
292 | info("ohoh: device vapourished"); | |
293 | return; | |
294 | } | |
295 | ||
296 | switch (urb->status) { | |
297 | case 0: | |
298 | /* success */ | |
299 | break; | |
300 | case -ECONNRESET: | |
301 | case -ENOENT: | |
302 | case -ESHUTDOWN: | |
303 | /* this urb is terminated, clean up */ | |
304 | dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); | |
305 | return; | |
306 | default: | |
307 | dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); | |
308 | goto exit; | |
309 | } | |
310 | ||
311 | if (urb->actual_length >=2) { | |
312 | if (se401->button) | |
313 | se401->buttonpressed=1; | |
314 | } | |
315 | exit: | |
316 | status = usb_submit_urb (urb, GFP_ATOMIC); | |
317 | if (status) | |
318 | err ("%s - usb_submit_urb failed with result %d", | |
319 | __FUNCTION__, status); | |
320 | } | |
321 | ||
322 | static void se401_video_irq(struct urb *urb, struct pt_regs *regs) | |
323 | { | |
324 | struct usb_se401 *se401 = urb->context; | |
325 | int length = urb->actual_length; | |
326 | ||
327 | /* ohoh... */ | |
328 | if (!se401->streaming) | |
329 | return; | |
330 | ||
331 | if (!se401->dev) { | |
332 | info ("ohoh: device vapourished"); | |
333 | return; | |
334 | } | |
335 | ||
336 | /* 0 sized packets happen if we are to fast, but sometimes the camera | |
337 | keeps sending them forever... | |
338 | */ | |
339 | if (length && !urb->status) { | |
340 | se401->nullpackets=0; | |
341 | switch(se401->scratch[se401->scratch_next].state) { | |
342 | case BUFFER_READY: | |
343 | case BUFFER_BUSY: { | |
344 | se401->dropped++; | |
345 | break; | |
346 | } | |
347 | case BUFFER_UNUSED: { | |
348 | memcpy(se401->scratch[se401->scratch_next].data, (unsigned char *)urb->transfer_buffer, length); | |
349 | se401->scratch[se401->scratch_next].state=BUFFER_READY; | |
350 | se401->scratch[se401->scratch_next].offset=se401->bayeroffset; | |
351 | se401->scratch[se401->scratch_next].length=length; | |
352 | if (waitqueue_active(&se401->wq)) { | |
353 | wake_up_interruptible(&se401->wq); | |
354 | } | |
355 | se401->scratch_overflow=0; | |
356 | se401->scratch_next++; | |
357 | if (se401->scratch_next>=SE401_NUMSCRATCH) | |
358 | se401->scratch_next=0; | |
359 | break; | |
360 | } | |
361 | } | |
362 | se401->bayeroffset+=length; | |
363 | if (se401->bayeroffset>=se401->cheight*se401->cwidth) { | |
364 | se401->bayeroffset=0; | |
365 | } | |
366 | } else { | |
367 | se401->nullpackets++; | |
368 | if (se401->nullpackets > SE401_MAX_NULLPACKETS) { | |
369 | if (waitqueue_active(&se401->wq)) { | |
370 | wake_up_interruptible(&se401->wq); | |
371 | } | |
372 | } | |
373 | } | |
374 | ||
375 | /* Resubmit urb for new data */ | |
376 | urb->status=0; | |
377 | urb->dev=se401->dev; | |
378 | if(usb_submit_urb(urb, GFP_KERNEL)) | |
379 | info("urb burned down"); | |
380 | return; | |
381 | } | |
382 | ||
383 | static void se401_send_size(struct usb_se401 *se401, int width, int height) | |
384 | { | |
385 | int i=0; | |
386 | int mode=0x03; /* No compression */ | |
387 | int sendheight=height; | |
388 | int sendwidth=width; | |
389 | ||
390 | /* JangGu compression can only be used with the camera supported sizes, | |
391 | but bayer seems to work with any size that fits on the sensor. | |
392 | We check if we can use compression with the current size with either | |
393 | 4 or 16 times subcapturing, if not we use uncompressed bayer data | |
394 | but this will result in cutouts of the maximum size.... | |
395 | */ | |
396 | while (i<se401->sizes && !(se401->width[i]==width && se401->height[i]==height)) | |
397 | i++; | |
398 | while (i<se401->sizes) { | |
399 | if (se401->width[i]==width*2 && se401->height[i]==height*2) { | |
400 | sendheight=se401->height[i]; | |
401 | sendwidth=se401->width[i]; | |
402 | mode=0x40; | |
403 | } | |
404 | if (se401->width[i]==width*4 && se401->height[i]==height*4) { | |
405 | sendheight=se401->height[i]; | |
406 | sendwidth=se401->width[i]; | |
407 | mode=0x42; | |
408 | } | |
409 | i++; | |
410 | } | |
411 | ||
412 | se401_sndctrl(1, se401, SE401_REQ_SET_WIDTH, sendwidth, NULL, 0); | |
413 | se401_sndctrl(1, se401, SE401_REQ_SET_HEIGHT, sendheight, NULL, 0); | |
414 | se401_set_feature(se401, SE401_OPERATINGMODE, mode); | |
415 | ||
416 | if (mode==0x03) { | |
417 | se401->format=FMT_BAYER; | |
418 | } else { | |
419 | se401->format=FMT_JANGGU; | |
420 | } | |
421 | ||
422 | return; | |
423 | } | |
424 | ||
425 | /* | |
426 | In this function se401_send_pict is called several times, | |
427 | for some reason (depending on the state of the sensor and the phase of | |
428 | the moon :) doing this only in either place doesn't always work... | |
429 | */ | |
430 | static int se401_start_stream(struct usb_se401 *se401) | |
431 | { | |
432 | struct urb *urb; | |
433 | int err=0, i; | |
434 | se401->streaming=1; | |
435 | ||
436 | se401_sndctrl(1, se401, SE401_REQ_CAMERA_POWER, 1, NULL, 0); | |
437 | se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 1, NULL, 0); | |
438 | ||
439 | /* Set picture settings */ | |
440 | se401_set_feature(se401, HV7131_REG_MODE_B, 0x05);/*windowed + pix intg */ | |
441 | se401_send_pict(se401); | |
442 | ||
443 | se401_send_size(se401, se401->cwidth, se401->cheight); | |
444 | ||
445 | se401_sndctrl(1, se401, SE401_REQ_START_CONTINUOUS_CAPTURE, 0, NULL, 0); | |
446 | ||
447 | /* Do some memory allocation */ | |
448 | for (i=0; i<SE401_NUMFRAMES; i++) { | |
449 | se401->frame[i].data=se401->fbuf + i * se401->maxframesize; | |
450 | se401->frame[i].curpix=0; | |
451 | } | |
452 | for (i=0; i<SE401_NUMSBUF; i++) { | |
453 | se401->sbuf[i].data=kmalloc(SE401_PACKETSIZE, GFP_KERNEL); | |
454 | } | |
455 | ||
456 | se401->bayeroffset=0; | |
457 | se401->scratch_next=0; | |
458 | se401->scratch_use=0; | |
459 | se401->scratch_overflow=0; | |
460 | for (i=0; i<SE401_NUMSCRATCH; i++) { | |
461 | se401->scratch[i].data=kmalloc(SE401_PACKETSIZE, GFP_KERNEL); | |
462 | se401->scratch[i].state=BUFFER_UNUSED; | |
463 | } | |
464 | ||
465 | for (i=0; i<SE401_NUMSBUF; i++) { | |
466 | urb=usb_alloc_urb(0, GFP_KERNEL); | |
467 | if(!urb) | |
468 | return -ENOMEM; | |
469 | ||
470 | usb_fill_bulk_urb(urb, se401->dev, | |
471 | usb_rcvbulkpipe(se401->dev, SE401_VIDEO_ENDPOINT), | |
472 | se401->sbuf[i].data, SE401_PACKETSIZE, | |
473 | se401_video_irq, | |
474 | se401); | |
475 | ||
476 | se401->urb[i]=urb; | |
477 | ||
478 | err=usb_submit_urb(se401->urb[i], GFP_KERNEL); | |
479 | if(err) | |
480 | err("urb burned down"); | |
481 | } | |
482 | ||
483 | se401->framecount=0; | |
484 | ||
485 | return 0; | |
486 | } | |
487 | ||
488 | static int se401_stop_stream(struct usb_se401 *se401) | |
489 | { | |
490 | int i; | |
491 | ||
492 | if (!se401->streaming || !se401->dev) | |
493 | return 1; | |
494 | ||
495 | se401->streaming=0; | |
496 | ||
497 | se401_sndctrl(1, se401, SE401_REQ_STOP_CONTINUOUS_CAPTURE, 0, NULL, 0); | |
498 | ||
499 | se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 0, NULL, 0); | |
500 | se401_sndctrl(1, se401, SE401_REQ_CAMERA_POWER, 0, NULL, 0); | |
501 | ||
502 | for (i=0; i<SE401_NUMSBUF; i++) if (se401->urb[i]) { | |
503 | usb_kill_urb(se401->urb[i]); | |
504 | usb_free_urb(se401->urb[i]); | |
505 | se401->urb[i]=NULL; | |
506 | kfree(se401->sbuf[i].data); | |
507 | } | |
508 | for (i=0; i<SE401_NUMSCRATCH; i++) { | |
509 | kfree(se401->scratch[i].data); | |
510 | se401->scratch[i].data=NULL; | |
511 | } | |
512 | ||
513 | return 0; | |
514 | } | |
515 | ||
516 | static int se401_set_size(struct usb_se401 *se401, int width, int height) | |
517 | { | |
518 | int wasstreaming=se401->streaming; | |
519 | /* Check to see if we need to change */ | |
520 | if (se401->cwidth==width && se401->cheight==height) | |
521 | return 0; | |
522 | ||
523 | /* Check for a valid mode */ | |
524 | if (!width || !height) | |
525 | return 1; | |
526 | if ((width & 1) || (height & 1)) | |
527 | return 1; | |
528 | if (width>se401->width[se401->sizes-1]) | |
529 | return 1; | |
530 | if (height>se401->height[se401->sizes-1]) | |
531 | return 1; | |
532 | ||
533 | /* Stop a current stream and start it again at the new size */ | |
534 | if (wasstreaming) | |
535 | se401_stop_stream(se401); | |
536 | se401->cwidth=width; | |
537 | se401->cheight=height; | |
538 | if (wasstreaming) | |
539 | se401_start_stream(se401); | |
540 | return 0; | |
541 | } | |
542 | ||
543 | ||
544 | /**************************************************************************** | |
545 | * | |
546 | * Video Decoding | |
547 | * | |
548 | ***************************************************************************/ | |
549 | ||
550 | /* | |
551 | This shouldn't really be done in a v4l driver.... | |
552 | But it does make the image look a lot more usable. | |
553 | Basically it lifts the dark pixels more than the light pixels. | |
554 | */ | |
555 | static inline void enhance_picture(unsigned char *frame, int len) | |
556 | { | |
557 | while (len--) { | |
558 | *frame=(((*frame^255)*(*frame^255))/255)^255; | |
559 | frame++; | |
560 | } | |
561 | } | |
562 | ||
563 | static inline void decode_JangGu_integrate(struct usb_se401 *se401, int data) | |
564 | { | |
565 | struct se401_frame *frame=&se401->frame[se401->curframe]; | |
566 | int linelength=se401->cwidth*3; | |
567 | ||
568 | if (frame->curlinepix >= linelength) { | |
569 | frame->curlinepix=0; | |
570 | frame->curline+=linelength; | |
571 | } | |
572 | ||
573 | /* First three are absolute, all others relative. | |
574 | * Format is rgb from right to left (mirrorred image), | |
575 | * we flip it to get bgr from left to right. */ | |
576 | if (frame->curlinepix < 3) { | |
577 | *(frame->curline-frame->curlinepix)=1+data*4; | |
578 | } else { | |
579 | *(frame->curline-frame->curlinepix)= | |
580 | *(frame->curline-frame->curlinepix+3)+data*4; | |
581 | } | |
582 | frame->curlinepix++; | |
583 | } | |
584 | ||
585 | static inline void decode_JangGu_vlc (struct usb_se401 *se401, unsigned char *data, int bit_exp, int packetlength) | |
586 | { | |
587 | int pos=0; | |
588 | int vlc_cod=0; | |
589 | int vlc_size=0; | |
590 | int vlc_data=0; | |
591 | int bit_cur; | |
592 | int bit; | |
593 | data+=4; | |
594 | while (pos < packetlength) { | |
595 | bit_cur=8; | |
596 | while (bit_cur && bit_exp) { | |
597 | bit=((*data)>>(bit_cur-1))&1; | |
598 | if (!vlc_cod) { | |
599 | if (bit) { | |
600 | vlc_size++; | |
601 | } else { | |
602 | if (!vlc_size) { | |
603 | decode_JangGu_integrate(se401, 0); | |
604 | } else { | |
605 | vlc_cod=2; | |
606 | vlc_data=0; | |
607 | } | |
608 | } | |
609 | } else { | |
610 | if (vlc_cod==2) { | |
611 | if (!bit) | |
612 | vlc_data = -(1<<vlc_size) + 1; | |
613 | vlc_cod--; | |
614 | } | |
615 | vlc_size--; | |
616 | vlc_data+=bit<<vlc_size; | |
617 | if (!vlc_size) { | |
618 | decode_JangGu_integrate(se401, vlc_data); | |
619 | vlc_cod=0; | |
620 | } | |
621 | } | |
622 | bit_cur--; | |
623 | bit_exp--; | |
624 | } | |
625 | pos++; | |
626 | data++; | |
627 | } | |
628 | } | |
629 | ||
630 | static inline void decode_JangGu (struct usb_se401 *se401, struct se401_scratch *buffer) | |
631 | { | |
632 | unsigned char *data=buffer->data; | |
633 | int len=buffer->length; | |
634 | int bit_exp=0, pix_exp=0, frameinfo=0, packetlength=0, size; | |
635 | int datapos=0; | |
636 | ||
637 | /* New image? */ | |
638 | if (!se401->frame[se401->curframe].curpix) { | |
639 | se401->frame[se401->curframe].curlinepix=0; | |
640 | se401->frame[se401->curframe].curline= | |
641 | se401->frame[se401->curframe].data+ | |
642 | se401->cwidth*3-1; | |
643 | if (se401->frame[se401->curframe].grabstate==FRAME_READY) | |
644 | se401->frame[se401->curframe].grabstate=FRAME_GRABBING; | |
645 | se401->vlcdatapos=0; | |
646 | } | |
647 | while (datapos < len) { | |
648 | size=1024-se401->vlcdatapos; | |
649 | if (size+datapos > len) | |
650 | size=len-datapos; | |
651 | memcpy(se401->vlcdata+se401->vlcdatapos, data+datapos, size); | |
652 | se401->vlcdatapos+=size; | |
653 | packetlength=0; | |
654 | if (se401->vlcdatapos >= 4) { | |
655 | bit_exp=se401->vlcdata[3]+(se401->vlcdata[2]<<8); | |
656 | pix_exp=se401->vlcdata[1]+((se401->vlcdata[0]&0x3f)<<8); | |
657 | frameinfo=se401->vlcdata[0]&0xc0; | |
658 | packetlength=((bit_exp+47)>>4)<<1; | |
659 | if (packetlength > 1024) { | |
660 | se401->vlcdatapos=0; | |
661 | datapos=len; | |
662 | packetlength=0; | |
663 | se401->error++; | |
664 | se401->frame[se401->curframe].curpix=0; | |
665 | } | |
666 | } | |
667 | if (packetlength && se401->vlcdatapos >= packetlength) { | |
668 | decode_JangGu_vlc(se401, se401->vlcdata, bit_exp, packetlength); | |
669 | se401->frame[se401->curframe].curpix+=pix_exp*3; | |
670 | datapos+=size-(se401->vlcdatapos-packetlength); | |
671 | se401->vlcdatapos=0; | |
672 | if (se401->frame[se401->curframe].curpix>=se401->cwidth*se401->cheight*3) { | |
673 | if (se401->frame[se401->curframe].curpix==se401->cwidth*se401->cheight*3) { | |
674 | if (se401->frame[se401->curframe].grabstate==FRAME_GRABBING) { | |
675 | se401->frame[se401->curframe].grabstate=FRAME_DONE; | |
676 | se401->framecount++; | |
677 | se401->readcount++; | |
678 | } | |
679 | if (se401->frame[(se401->curframe+1)&(SE401_NUMFRAMES-1)].grabstate==FRAME_READY) { | |
680 | se401->curframe=(se401->curframe+1) & (SE401_NUMFRAMES-1); | |
681 | } | |
682 | } else { | |
683 | se401->error++; | |
684 | } | |
685 | se401->frame[se401->curframe].curpix=0; | |
686 | datapos=len; | |
687 | } | |
688 | } else { | |
689 | datapos+=size; | |
690 | } | |
691 | } | |
692 | } | |
693 | ||
694 | static inline void decode_bayer (struct usb_se401 *se401, struct se401_scratch *buffer) | |
695 | { | |
696 | unsigned char *data=buffer->data; | |
697 | int len=buffer->length; | |
698 | int offset=buffer->offset; | |
699 | int datasize=se401->cwidth*se401->cheight; | |
700 | struct se401_frame *frame=&se401->frame[se401->curframe]; | |
701 | ||
702 | unsigned char *framedata=frame->data, *curline, *nextline; | |
703 | int width=se401->cwidth; | |
704 | int blineoffset=0, bline; | |
705 | int linelength=width*3, i; | |
706 | ||
707 | ||
708 | if (frame->curpix==0) { | |
709 | if (frame->grabstate==FRAME_READY) { | |
710 | frame->grabstate=FRAME_GRABBING; | |
711 | } | |
712 | frame->curline=framedata+linelength; | |
713 | frame->curlinepix=0; | |
714 | } | |
715 | ||
716 | if (offset!=frame->curpix) { | |
717 | /* Regard frame as lost :( */ | |
718 | frame->curpix=0; | |
719 | se401->error++; | |
720 | return; | |
721 | } | |
722 | ||
723 | /* Check if we have to much data */ | |
724 | if (frame->curpix+len > datasize) { | |
725 | len=datasize-frame->curpix; | |
726 | } | |
727 | if (se401->cheight%4) | |
728 | blineoffset=1; | |
729 | bline=frame->curpix/se401->cwidth+blineoffset; | |
730 | ||
731 | curline=frame->curline; | |
732 | nextline=curline+linelength; | |
733 | if (nextline >= framedata+datasize*3) | |
734 | nextline=curline; | |
735 | while (len) { | |
736 | if (frame->curlinepix>=width) { | |
737 | frame->curlinepix-=width; | |
738 | bline=frame->curpix/width+blineoffset; | |
739 | curline+=linelength*2; | |
740 | nextline+=linelength*2; | |
741 | if (curline >= framedata+datasize*3) { | |
742 | frame->curlinepix++; | |
743 | curline-=3; | |
744 | nextline-=3; | |
745 | len--; | |
746 | data++; | |
747 | frame->curpix++; | |
748 | } | |
749 | if (nextline >= framedata+datasize*3) | |
750 | nextline=curline; | |
751 | } | |
752 | if ((bline&1)) { | |
753 | if ((frame->curlinepix&1)) { | |
754 | *(curline+2)=*data; | |
755 | *(curline-1)=*data; | |
756 | *(nextline+2)=*data; | |
757 | *(nextline-1)=*data; | |
758 | } else { | |
759 | *(curline+1)= | |
760 | (*(curline+1)+*data)/2; | |
761 | *(curline-2)= | |
762 | (*(curline-2)+*data)/2; | |
763 | *(nextline+1)=*data; | |
764 | *(nextline-2)=*data; | |
765 | } | |
766 | } else { | |
767 | if ((frame->curlinepix&1)) { | |
768 | *(curline+1)= | |
769 | (*(curline+1)+*data)/2; | |
770 | *(curline-2)= | |
771 | (*(curline-2)+*data)/2; | |
772 | *(nextline+1)=*data; | |
773 | *(nextline-2)=*data; | |
774 | } else { | |
775 | *curline=*data; | |
776 | *(curline-3)=*data; | |
777 | *nextline=*data; | |
778 | *(nextline-3)=*data; | |
779 | } | |
780 | } | |
781 | frame->curlinepix++; | |
782 | curline-=3; | |
783 | nextline-=3; | |
784 | len--; | |
785 | data++; | |
786 | frame->curpix++; | |
787 | } | |
788 | frame->curline=curline; | |
789 | ||
790 | if (frame->curpix>=datasize) { | |
791 | /* Fix the top line */ | |
792 | framedata+=linelength; | |
793 | for (i=0; i<linelength; i++) { | |
794 | framedata--; | |
795 | *framedata=*(framedata+linelength); | |
796 | } | |
797 | /* Fix the left side (green is already present) */ | |
798 | for (i=0; i<se401->cheight; i++) { | |
799 | *framedata=*(framedata+3); | |
800 | *(framedata+1)=*(framedata+4); | |
801 | *(framedata+2)=*(framedata+5); | |
802 | framedata+=linelength; | |
803 | } | |
804 | frame->curpix=0; | |
805 | frame->grabstate=FRAME_DONE; | |
806 | se401->framecount++; | |
807 | se401->readcount++; | |
808 | if (se401->frame[(se401->curframe+1)&(SE401_NUMFRAMES-1)].grabstate==FRAME_READY) { | |
809 | se401->curframe=(se401->curframe+1) & (SE401_NUMFRAMES-1); | |
810 | } | |
811 | } | |
812 | } | |
813 | ||
814 | static int se401_newframe(struct usb_se401 *se401, int framenr) | |
815 | { | |
816 | DECLARE_WAITQUEUE(wait, current); | |
817 | int errors=0; | |
818 | ||
819 | while (se401->streaming && | |
820 | (se401->frame[framenr].grabstate==FRAME_READY || | |
821 | se401->frame[framenr].grabstate==FRAME_GRABBING) ) { | |
822 | if(!se401->frame[framenr].curpix) { | |
823 | errors++; | |
824 | } | |
825 | wait_interruptible( | |
826 | se401->scratch[se401->scratch_use].state!=BUFFER_READY, | |
827 | &se401->wq, | |
828 | &wait | |
829 | ); | |
830 | if (se401->nullpackets > SE401_MAX_NULLPACKETS) { | |
831 | se401->nullpackets=0; | |
832 | info("to many null length packets, restarting capture"); | |
833 | se401_stop_stream(se401); | |
834 | se401_start_stream(se401); | |
835 | } else { | |
836 | if (se401->scratch[se401->scratch_use].state!=BUFFER_READY) { | |
837 | se401->frame[framenr].grabstate=FRAME_ERROR; | |
838 | return -EIO; | |
839 | } | |
840 | se401->scratch[se401->scratch_use].state=BUFFER_BUSY; | |
841 | if (se401->format==FMT_JANGGU) { | |
842 | decode_JangGu(se401, &se401->scratch[se401->scratch_use]); | |
843 | } else { | |
844 | decode_bayer(se401, &se401->scratch[se401->scratch_use]); | |
845 | } | |
846 | se401->scratch[se401->scratch_use].state=BUFFER_UNUSED; | |
847 | se401->scratch_use++; | |
848 | if (se401->scratch_use>=SE401_NUMSCRATCH) | |
849 | se401->scratch_use=0; | |
850 | if (errors > SE401_MAX_ERRORS) { | |
851 | errors=0; | |
852 | info("to much errors, restarting capture"); | |
853 | se401_stop_stream(se401); | |
854 | se401_start_stream(se401); | |
855 | } | |
856 | } | |
857 | } | |
858 | ||
859 | if (se401->frame[framenr].grabstate==FRAME_DONE) | |
860 | if (se401->enhance) | |
861 | enhance_picture(se401->frame[framenr].data, se401->cheight*se401->cwidth*3); | |
862 | return 0; | |
863 | } | |
864 | ||
865 | static void usb_se401_remove_disconnected (struct usb_se401 *se401) | |
866 | { | |
867 | int i; | |
868 | ||
869 | se401->dev = NULL; | |
870 | ||
1bc3c9e1 JJ |
871 | for (i=0; i<SE401_NUMSBUF; i++) |
872 | if (se401->urb[i]) { | |
873 | usb_kill_urb(se401->urb[i]); | |
874 | usb_free_urb(se401->urb[i]); | |
875 | se401->urb[i] = NULL; | |
876 | kfree(se401->sbuf[i].data); | |
877 | } | |
878 | for (i=0; i<SE401_NUMSCRATCH; i++) { | |
1da177e4 LT |
879 | kfree(se401->scratch[i].data); |
880 | } | |
881 | if (se401->inturb) { | |
882 | usb_kill_urb(se401->inturb); | |
883 | usb_free_urb(se401->inturb); | |
884 | } | |
885 | info("%s disconnected", se401->camera_name); | |
886 | ||
887 | /* Free the memory */ | |
888 | kfree(se401->width); | |
889 | kfree(se401->height); | |
890 | kfree(se401); | |
891 | } | |
892 | ||
893 | ||
894 | ||
895 | /**************************************************************************** | |
896 | * | |
897 | * Video4Linux | |
898 | * | |
899 | ***************************************************************************/ | |
900 | ||
901 | ||
902 | static int se401_open(struct inode *inode, struct file *file) | |
903 | { | |
904 | struct video_device *dev = video_devdata(file); | |
905 | struct usb_se401 *se401 = (struct usb_se401 *)dev; | |
906 | int err = 0; | |
907 | ||
908 | if (se401->user) | |
909 | return -EBUSY; | |
910 | se401->fbuf = rvmalloc(se401->maxframesize * SE401_NUMFRAMES); | |
911 | if (se401->fbuf) | |
912 | file->private_data = dev; | |
913 | else | |
914 | err = -ENOMEM; | |
915 | se401->user = !err; | |
916 | ||
917 | return err; | |
918 | } | |
919 | ||
920 | static int se401_close(struct inode *inode, struct file *file) | |
921 | { | |
922 | struct video_device *dev = file->private_data; | |
923 | struct usb_se401 *se401 = (struct usb_se401 *)dev; | |
924 | int i; | |
925 | ||
926 | rvfree(se401->fbuf, se401->maxframesize * SE401_NUMFRAMES); | |
927 | if (se401->removed) { | |
928 | usb_se401_remove_disconnected(se401); | |
929 | info("device unregistered"); | |
930 | } else { | |
931 | for (i=0; i<SE401_NUMFRAMES; i++) | |
932 | se401->frame[i].grabstate=FRAME_UNUSED; | |
933 | if (se401->streaming) | |
934 | se401_stop_stream(se401); | |
935 | se401->user=0; | |
936 | } | |
937 | file->private_data = NULL; | |
938 | return 0; | |
939 | } | |
940 | ||
941 | static int se401_do_ioctl(struct inode *inode, struct file *file, | |
942 | unsigned int cmd, void *arg) | |
943 | { | |
944 | struct video_device *vdev = file->private_data; | |
945 | struct usb_se401 *se401 = (struct usb_se401 *)vdev; | |
946 | ||
947 | if (!se401->dev) | |
948 | return -EIO; | |
949 | ||
950 | switch (cmd) { | |
951 | case VIDIOCGCAP: | |
952 | { | |
953 | struct video_capability *b = arg; | |
954 | strcpy(b->name, se401->camera_name); | |
955 | b->type = VID_TYPE_CAPTURE; | |
956 | b->channels = 1; | |
957 | b->audios = 0; | |
958 | b->maxwidth = se401->width[se401->sizes-1]; | |
959 | b->maxheight = se401->height[se401->sizes-1]; | |
960 | b->minwidth = se401->width[0]; | |
961 | b->minheight = se401->height[0]; | |
962 | return 0; | |
963 | } | |
964 | case VIDIOCGCHAN: | |
965 | { | |
966 | struct video_channel *v = arg; | |
967 | ||
968 | if (v->channel != 0) | |
969 | return -EINVAL; | |
970 | v->flags = 0; | |
971 | v->tuners = 0; | |
972 | v->type = VIDEO_TYPE_CAMERA; | |
973 | strcpy(v->name, "Camera"); | |
974 | return 0; | |
975 | } | |
976 | case VIDIOCSCHAN: | |
977 | { | |
978 | struct video_channel *v = arg; | |
979 | ||
980 | if (v->channel != 0) | |
981 | return -EINVAL; | |
982 | return 0; | |
983 | } | |
984 | case VIDIOCGPICT: | |
985 | { | |
986 | struct video_picture *p = arg; | |
987 | ||
988 | se401_get_pict(se401, p); | |
989 | return 0; | |
990 | } | |
991 | case VIDIOCSPICT: | |
992 | { | |
993 | struct video_picture *p = arg; | |
994 | ||
995 | if (se401_set_pict(se401, p)) | |
996 | return -EINVAL; | |
997 | return 0; | |
998 | } | |
999 | case VIDIOCSWIN: | |
1000 | { | |
1001 | struct video_window *vw = arg; | |
1002 | ||
1003 | if (vw->flags) | |
1004 | return -EINVAL; | |
1005 | if (vw->clipcount) | |
1006 | return -EINVAL; | |
1007 | if (se401_set_size(se401, vw->width, vw->height)) | |
1008 | return -EINVAL; | |
1009 | return 0; | |
1010 | } | |
1011 | case VIDIOCGWIN: | |
1012 | { | |
1013 | struct video_window *vw = arg; | |
1014 | ||
1015 | vw->x = 0; /* FIXME */ | |
1016 | vw->y = 0; | |
1017 | vw->chromakey = 0; | |
1018 | vw->flags = 0; | |
1019 | vw->clipcount = 0; | |
1020 | vw->width = se401->cwidth; | |
1021 | vw->height = se401->cheight; | |
1022 | return 0; | |
1023 | } | |
1024 | case VIDIOCGMBUF: | |
1025 | { | |
1026 | struct video_mbuf *vm = arg; | |
1027 | int i; | |
1028 | ||
1029 | memset(vm, 0, sizeof(*vm)); | |
1030 | vm->size = SE401_NUMFRAMES * se401->maxframesize; | |
1031 | vm->frames = SE401_NUMFRAMES; | |
1032 | for (i=0; i<SE401_NUMFRAMES; i++) | |
1033 | vm->offsets[i] = se401->maxframesize * i; | |
1034 | return 0; | |
1035 | } | |
1036 | case VIDIOCMCAPTURE: | |
1037 | { | |
1038 | struct video_mmap *vm = arg; | |
1039 | ||
1040 | if (vm->format != VIDEO_PALETTE_RGB24) | |
1041 | return -EINVAL; | |
1042 | if (vm->frame >= SE401_NUMFRAMES) | |
1043 | return -EINVAL; | |
1044 | if (se401->frame[vm->frame].grabstate != FRAME_UNUSED) | |
1045 | return -EBUSY; | |
1046 | ||
1047 | /* Is this according to the v4l spec??? */ | |
1048 | if (se401_set_size(se401, vm->width, vm->height)) | |
1049 | return -EINVAL; | |
1050 | se401->frame[vm->frame].grabstate=FRAME_READY; | |
1051 | ||
1052 | if (!se401->streaming) | |
1053 | se401_start_stream(se401); | |
1054 | ||
1055 | /* Set the picture properties */ | |
1056 | if (se401->framecount==0) | |
1057 | se401_send_pict(se401); | |
1058 | /* Calibrate the reset level after a few frames. */ | |
1059 | if (se401->framecount%20==1) | |
1060 | se401_auto_resetlevel(se401); | |
1061 | ||
1062 | return 0; | |
1063 | } | |
1064 | case VIDIOCSYNC: | |
1065 | { | |
1066 | int *frame = arg; | |
1067 | int ret=0; | |
1068 | ||
1069 | if(*frame <0 || *frame >= SE401_NUMFRAMES) | |
1070 | return -EINVAL; | |
1071 | ||
1072 | ret=se401_newframe(se401, *frame); | |
1073 | se401->frame[*frame].grabstate=FRAME_UNUSED; | |
1074 | return ret; | |
1075 | } | |
1076 | case VIDIOCGFBUF: | |
1077 | { | |
1078 | struct video_buffer *vb = arg; | |
1079 | ||
1080 | memset(vb, 0, sizeof(*vb)); | |
1081 | return 0; | |
1082 | } | |
1083 | case VIDIOCKEY: | |
1084 | return 0; | |
1085 | case VIDIOCCAPTURE: | |
1086 | return -EINVAL; | |
1087 | case VIDIOCSFBUF: | |
1088 | return -EINVAL; | |
1089 | case VIDIOCGTUNER: | |
1090 | case VIDIOCSTUNER: | |
1091 | return -EINVAL; | |
1092 | case VIDIOCGFREQ: | |
1093 | case VIDIOCSFREQ: | |
1094 | return -EINVAL; | |
1095 | case VIDIOCGAUDIO: | |
1096 | case VIDIOCSAUDIO: | |
1097 | return -EINVAL; | |
1098 | default: | |
1099 | return -ENOIOCTLCMD; | |
1100 | } /* end switch */ | |
1101 | ||
1102 | return 0; | |
1103 | } | |
1104 | ||
1105 | static int se401_ioctl(struct inode *inode, struct file *file, | |
1106 | unsigned int cmd, unsigned long arg) | |
1107 | { | |
1108 | return video_usercopy(inode, file, cmd, arg, se401_do_ioctl); | |
1109 | } | |
1110 | ||
1111 | static ssize_t se401_read(struct file *file, char __user *buf, | |
1112 | size_t count, loff_t *ppos) | |
1113 | { | |
1114 | int realcount=count, ret=0; | |
1115 | struct video_device *dev = file->private_data; | |
1116 | struct usb_se401 *se401 = (struct usb_se401 *)dev; | |
1117 | ||
1118 | ||
1119 | if (se401->dev == NULL) | |
1120 | return -EIO; | |
1121 | if (realcount > se401->cwidth*se401->cheight*3) | |
1122 | realcount=se401->cwidth*se401->cheight*3; | |
1123 | ||
1124 | /* Shouldn't happen: */ | |
1125 | if (se401->frame[0].grabstate==FRAME_GRABBING) | |
1126 | return -EBUSY; | |
1127 | se401->frame[0].grabstate=FRAME_READY; | |
1128 | se401->frame[1].grabstate=FRAME_UNUSED; | |
1129 | se401->curframe=0; | |
1130 | ||
1131 | if (!se401->streaming) | |
1132 | se401_start_stream(se401); | |
1133 | ||
1134 | /* Set the picture properties */ | |
1135 | if (se401->framecount==0) | |
1136 | se401_send_pict(se401); | |
1137 | /* Calibrate the reset level after a few frames. */ | |
1138 | if (se401->framecount%20==1) | |
1139 | se401_auto_resetlevel(se401); | |
1140 | ||
1141 | ret=se401_newframe(se401, 0); | |
1142 | ||
1143 | se401->frame[0].grabstate=FRAME_UNUSED; | |
1144 | if (ret) | |
1145 | return ret; | |
1146 | if (copy_to_user(buf, se401->frame[0].data, realcount)) | |
1147 | return -EFAULT; | |
1148 | ||
1149 | return realcount; | |
1150 | } | |
1151 | ||
1152 | static int se401_mmap(struct file *file, struct vm_area_struct *vma) | |
1153 | { | |
1154 | struct video_device *dev = file->private_data; | |
1155 | struct usb_se401 *se401 = (struct usb_se401 *)dev; | |
1156 | unsigned long start = vma->vm_start; | |
1157 | unsigned long size = vma->vm_end-vma->vm_start; | |
1158 | unsigned long page, pos; | |
1159 | ||
4186ecf8 | 1160 | mutex_lock(&se401->lock); |
1da177e4 LT |
1161 | |
1162 | if (se401->dev == NULL) { | |
4186ecf8 | 1163 | mutex_unlock(&se401->lock); |
1da177e4 LT |
1164 | return -EIO; |
1165 | } | |
1166 | if (size > (((SE401_NUMFRAMES * se401->maxframesize) + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1))) { | |
4186ecf8 | 1167 | mutex_unlock(&se401->lock); |
1da177e4 LT |
1168 | return -EINVAL; |
1169 | } | |
1170 | pos = (unsigned long)se401->fbuf; | |
1171 | while (size > 0) { | |
1172 | page = vmalloc_to_pfn((void *)pos); | |
1173 | if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) { | |
4186ecf8 | 1174 | mutex_unlock(&se401->lock); |
1da177e4 LT |
1175 | return -EAGAIN; |
1176 | } | |
1177 | start += PAGE_SIZE; | |
1178 | pos += PAGE_SIZE; | |
1179 | if (size > PAGE_SIZE) | |
1180 | size -= PAGE_SIZE; | |
1181 | else | |
1182 | size = 0; | |
1183 | } | |
4186ecf8 | 1184 | mutex_unlock(&se401->lock); |
1da177e4 LT |
1185 | |
1186 | return 0; | |
1187 | } | |
1188 | ||
1189 | static struct file_operations se401_fops = { | |
1190 | .owner = THIS_MODULE, | |
1191 | .open = se401_open, | |
1192 | .release = se401_close, | |
1193 | .read = se401_read, | |
1194 | .mmap = se401_mmap, | |
1195 | .ioctl = se401_ioctl, | |
0d0fbf81 | 1196 | .compat_ioctl = v4l_compat_ioctl32, |
1da177e4 LT |
1197 | .llseek = no_llseek, |
1198 | }; | |
1199 | static struct video_device se401_template = { | |
1200 | .owner = THIS_MODULE, | |
1201 | .name = "se401 USB camera", | |
1202 | .type = VID_TYPE_CAPTURE, | |
1203 | .hardware = VID_HARDWARE_SE401, | |
1204 | .fops = &se401_fops, | |
1205 | }; | |
1206 | ||
1207 | ||
1208 | ||
1209 | /***************************/ | |
1210 | static int se401_init(struct usb_se401 *se401, int button) | |
1211 | { | |
1212 | int i=0, rc; | |
1213 | unsigned char cp[0x40]; | |
1214 | char temp[200]; | |
1215 | ||
1216 | /* led on */ | |
1217 | se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 1, NULL, 0); | |
1218 | ||
1219 | /* get camera descriptor */ | |
1220 | rc=se401_sndctrl(0, se401, SE401_REQ_GET_CAMERA_DESCRIPTOR, 0, cp, sizeof(cp)); | |
1221 | if (cp[1]!=0x41) { | |
1222 | err("Wrong descriptor type"); | |
1223 | return 1; | |
1224 | } | |
1225 | sprintf (temp, "ExtraFeatures: %d", cp[3]); | |
1226 | ||
1227 | se401->sizes=cp[4]+cp[5]*256; | |
1228 | se401->width=kmalloc(se401->sizes*sizeof(int), GFP_KERNEL); | |
1229 | if (!se401->width) | |
1230 | return 1; | |
1231 | se401->height=kmalloc(se401->sizes*sizeof(int), GFP_KERNEL); | |
1232 | if (!se401->height) { | |
1233 | kfree(se401->width); | |
1234 | return 1; | |
1235 | } | |
1236 | for (i=0; i<se401->sizes; i++) { | |
1237 | se401->width[i]=cp[6+i*4+0]+cp[6+i*4+1]*256; | |
1238 | se401->height[i]=cp[6+i*4+2]+cp[6+i*4+3]*256; | |
1239 | } | |
1240 | sprintf (temp, "%s Sizes:", temp); | |
1241 | for (i=0; i<se401->sizes; i++) { | |
1242 | sprintf(temp, "%s %dx%d", temp, se401->width[i], se401->height[i]); | |
1243 | } | |
1244 | info("%s", temp); | |
1245 | se401->maxframesize=se401->width[se401->sizes-1]*se401->height[se401->sizes-1]*3; | |
1246 | ||
1247 | rc=se401_sndctrl(0, se401, SE401_REQ_GET_WIDTH, 0, cp, sizeof(cp)); | |
1248 | se401->cwidth=cp[0]+cp[1]*256; | |
1249 | rc=se401_sndctrl(0, se401, SE401_REQ_GET_HEIGHT, 0, cp, sizeof(cp)); | |
1250 | se401->cheight=cp[0]+cp[1]*256; | |
1251 | ||
1252 | if (!cp[2] && SE401_FORMAT_BAYER) { | |
1253 | err("Bayer format not supported!"); | |
1254 | return 1; | |
1255 | } | |
1256 | /* set output mode (BAYER) */ | |
1257 | se401_sndctrl(1, se401, SE401_REQ_SET_OUTPUT_MODE, SE401_FORMAT_BAYER, NULL, 0); | |
1258 | ||
1259 | rc=se401_sndctrl(0, se401, SE401_REQ_GET_BRT, 0, cp, sizeof(cp)); | |
1260 | se401->brightness=cp[0]+cp[1]*256; | |
1261 | /* some default values */ | |
1262 | se401->resetlevel=0x2d; | |
1263 | se401->rgain=0x20; | |
1264 | se401->ggain=0x20; | |
1265 | se401->bgain=0x20; | |
1266 | se401_set_exposure(se401, 20000); | |
1267 | se401->palette=VIDEO_PALETTE_RGB24; | |
1268 | se401->enhance=1; | |
1269 | se401->dropped=0; | |
1270 | se401->error=0; | |
1271 | se401->framecount=0; | |
1272 | se401->readcount=0; | |
1273 | ||
1274 | /* Start interrupt transfers for snapshot button */ | |
1275 | if (button) { | |
1276 | se401->inturb=usb_alloc_urb(0, GFP_KERNEL); | |
1277 | if (!se401->inturb) { | |
1278 | info("Allocation of inturb failed"); | |
1279 | return 1; | |
1280 | } | |
1281 | usb_fill_int_urb(se401->inturb, se401->dev, | |
1282 | usb_rcvintpipe(se401->dev, SE401_BUTTON_ENDPOINT), | |
1283 | &se401->button, sizeof(se401->button), | |
1284 | se401_button_irq, | |
1285 | se401, | |
1286 | 8 | |
1287 | ); | |
1288 | if (usb_submit_urb(se401->inturb, GFP_KERNEL)) { | |
1289 | info("int urb burned down"); | |
1290 | return 1; | |
1291 | } | |
1292 | } else | |
1293 | se401->inturb=NULL; | |
1294 | ||
1295 | /* Flash the led */ | |
1296 | se401_sndctrl(1, se401, SE401_REQ_CAMERA_POWER, 1, NULL, 0); | |
1297 | se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 1, NULL, 0); | |
1298 | se401_sndctrl(1, se401, SE401_REQ_CAMERA_POWER, 0, NULL, 0); | |
1299 | se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 0, NULL, 0); | |
1300 | ||
1301 | return 0; | |
1302 | } | |
1303 | ||
1304 | static int se401_probe(struct usb_interface *intf, | |
1305 | const struct usb_device_id *id) | |
1306 | { | |
1307 | struct usb_device *dev = interface_to_usbdev(intf); | |
1308 | struct usb_interface_descriptor *interface; | |
1309 | struct usb_se401 *se401; | |
1310 | char *camera_name=NULL; | |
1311 | int button=1; | |
1312 | ||
1313 | /* We don't handle multi-config cameras */ | |
1314 | if (dev->descriptor.bNumConfigurations != 1) | |
1315 | return -ENODEV; | |
1316 | ||
1317 | interface = &intf->cur_altsetting->desc; | |
1318 | ||
1319 | /* Is it an se401? */ | |
1320 | if (le16_to_cpu(dev->descriptor.idVendor) == 0x03e8 && | |
1321 | le16_to_cpu(dev->descriptor.idProduct) == 0x0004) { | |
1322 | camera_name="Endpoints/Aox SE401"; | |
1323 | } else if (le16_to_cpu(dev->descriptor.idVendor) == 0x0471 && | |
1324 | le16_to_cpu(dev->descriptor.idProduct) == 0x030b) { | |
1325 | camera_name="Philips PCVC665K"; | |
1326 | } else if (le16_to_cpu(dev->descriptor.idVendor) == 0x047d && | |
1327 | le16_to_cpu(dev->descriptor.idProduct) == 0x5001) { | |
1328 | camera_name="Kensington VideoCAM 67014"; | |
1329 | } else if (le16_to_cpu(dev->descriptor.idVendor) == 0x047d && | |
1330 | le16_to_cpu(dev->descriptor.idProduct) == 0x5002) { | |
1331 | camera_name="Kensington VideoCAM 6701(5/7)"; | |
1332 | } else if (le16_to_cpu(dev->descriptor.idVendor) == 0x047d && | |
1333 | le16_to_cpu(dev->descriptor.idProduct) == 0x5003) { | |
1334 | camera_name="Kensington VideoCAM 67016"; | |
1335 | button=0; | |
1336 | } else | |
1337 | return -ENODEV; | |
1338 | ||
1339 | /* Checking vendor/product should be enough, but what the hell */ | |
1340 | if (interface->bInterfaceClass != 0x00) | |
1341 | return -ENODEV; | |
1342 | if (interface->bInterfaceSubClass != 0x00) | |
1343 | return -ENODEV; | |
1344 | ||
1345 | /* We found one */ | |
1346 | info("SE401 camera found: %s", camera_name); | |
1347 | ||
80b6ca48 | 1348 | if ((se401 = kzalloc(sizeof(*se401), GFP_KERNEL)) == NULL) { |
1da177e4 LT |
1349 | err("couldn't kmalloc se401 struct"); |
1350 | return -ENOMEM; | |
1351 | } | |
1352 | ||
1da177e4 LT |
1353 | se401->dev = dev; |
1354 | se401->iface = interface->bInterfaceNumber; | |
1355 | se401->camera_name = camera_name; | |
1356 | ||
1357 | info("firmware version: %02x", le16_to_cpu(dev->descriptor.bcdDevice) & 255); | |
1358 | ||
1359 | if (se401_init(se401, button)) { | |
1360 | kfree(se401); | |
1361 | return -EIO; | |
1362 | } | |
1363 | ||
1364 | memcpy(&se401->vdev, &se401_template, sizeof(se401_template)); | |
1365 | memcpy(se401->vdev.name, se401->camera_name, strlen(se401->camera_name)); | |
1366 | init_waitqueue_head(&se401->wq); | |
4186ecf8 | 1367 | mutex_init(&se401->lock); |
1da177e4 LT |
1368 | wmb(); |
1369 | ||
1370 | if (video_register_device(&se401->vdev, VFL_TYPE_GRABBER, video_nr) == -1) { | |
1371 | kfree(se401); | |
1372 | err("video_register_device failed"); | |
1373 | return -EIO; | |
1374 | } | |
1375 | info("registered new video device: video%d", se401->vdev.minor); | |
1376 | ||
1377 | usb_set_intfdata (intf, se401); | |
1378 | return 0; | |
1379 | } | |
1380 | ||
1381 | static void se401_disconnect(struct usb_interface *intf) | |
1382 | { | |
1383 | struct usb_se401 *se401 = usb_get_intfdata (intf); | |
1384 | ||
1385 | usb_set_intfdata (intf, NULL); | |
1386 | if (se401) { | |
1387 | video_unregister_device(&se401->vdev); | |
1388 | if (!se401->user){ | |
1389 | usb_se401_remove_disconnected(se401); | |
1390 | } else { | |
1391 | se401->frame[0].grabstate = FRAME_ERROR; | |
1392 | se401->frame[0].grabstate = FRAME_ERROR; | |
1393 | ||
1394 | se401->streaming = 0; | |
1395 | ||
1396 | wake_up_interruptible(&se401->wq); | |
1397 | se401->removed = 1; | |
1398 | } | |
1399 | } | |
1400 | } | |
1401 | ||
1402 | static struct usb_driver se401_driver = { | |
1da177e4 LT |
1403 | .name = "se401", |
1404 | .id_table = device_table, | |
1405 | .probe = se401_probe, | |
1406 | .disconnect = se401_disconnect, | |
1407 | }; | |
1408 | ||
1409 | ||
1410 | ||
1411 | /**************************************************************************** | |
1412 | * | |
1413 | * Module routines | |
1414 | * | |
1415 | ***************************************************************************/ | |
1416 | ||
1417 | static int __init usb_se401_init(void) | |
1418 | { | |
1419 | info("SE401 usb camera driver version %s registering", version); | |
1420 | if (flickerless) | |
1421 | if (flickerless!=50 && flickerless!=60) { | |
1422 | info("Invallid flickerless value, use 0, 50 or 60."); | |
1423 | return -1; | |
1424 | } | |
1425 | return usb_register(&se401_driver); | |
1426 | } | |
1427 | ||
1428 | static void __exit usb_se401_exit(void) | |
1429 | { | |
1430 | usb_deregister(&se401_driver); | |
1431 | info("SE401 driver deregistered"); | |
1432 | } | |
1433 | ||
1434 | module_init(usb_se401_init); | |
1435 | module_exit(usb_se401_exit); |