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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. | |
d56410e0 | 7 | * |
1da177e4 LT |
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 | ||
1da177e4 LT |
30 | #include <linux/module.h> |
31 | #include <linux/init.h> | |
32 | #include <linux/vmalloc.h> | |
33 | #include <linux/slab.h> | |
34 | #include <linux/pagemap.h> | |
35 | #include <linux/usb.h> | |
36 | #include "se401.h" | |
37 | ||
38 | static int flickerless=0; | |
39 | static int video_nr = -1; | |
40 | ||
41 | static struct usb_device_id device_table [] = { | |
42 | { USB_DEVICE(0x03e8, 0x0004) },/* Endpoints/Aox SE401 */ | |
43 | { USB_DEVICE(0x0471, 0x030b) },/* Philips PCVC665K */ | |
44 | { USB_DEVICE(0x047d, 0x5001) },/* Kensington 67014 */ | |
45 | { USB_DEVICE(0x047d, 0x5002) },/* Kensington 6701(5/7) */ | |
46 | { USB_DEVICE(0x047d, 0x5003) },/* Kensington 67016 */ | |
47 | { } | |
48 | }; | |
49 | ||
50 | MODULE_DEVICE_TABLE(usb, device_table); | |
51 | ||
52 | MODULE_AUTHOR("Jeroen Vreeken <pe1rxq@amsat.org>"); | |
53 | MODULE_DESCRIPTION("SE401 USB Camera Driver"); | |
54 | MODULE_LICENSE("GPL"); | |
55 | module_param(flickerless, int, 0); | |
56 | MODULE_PARM_DESC(flickerless, "Net frequency to adjust exposure time to (0/50/60)"); | |
57 | module_param(video_nr, int, 0); | |
58 | ||
59 | static struct usb_driver se401_driver; | |
60 | ||
61 | ||
62 | /********************************************************************** | |
63 | * | |
64 | * Memory management | |
65 | * | |
66 | **********************************************************************/ | |
67 | static void *rvmalloc(unsigned long size) | |
68 | { | |
69 | void *mem; | |
70 | unsigned long adr; | |
71 | ||
72 | size = PAGE_ALIGN(size); | |
73 | mem = vmalloc_32(size); | |
74 | if (!mem) | |
75 | return NULL; | |
76 | ||
77 | memset(mem, 0, size); /* Clear the ram out, no junk to the user */ | |
78 | adr = (unsigned long) mem; | |
79 | while (size > 0) { | |
80 | SetPageReserved(vmalloc_to_page((void *)adr)); | |
81 | adr += PAGE_SIZE; | |
82 | size -= PAGE_SIZE; | |
83 | } | |
84 | ||
85 | return mem; | |
86 | } | |
87 | ||
88 | static void rvfree(void *mem, unsigned long size) | |
89 | { | |
90 | unsigned long adr; | |
91 | ||
92 | if (!mem) | |
93 | return; | |
94 | ||
95 | adr = (unsigned long) mem; | |
96 | while ((long) size > 0) { | |
97 | ClearPageReserved(vmalloc_to_page((void *)adr)); | |
98 | adr += PAGE_SIZE; | |
99 | size -= PAGE_SIZE; | |
100 | } | |
101 | vfree(mem); | |
102 | } | |
103 | ||
104 | ||
105 | ||
106 | /**************************************************************************** | |
107 | * | |
108 | * se401 register read/write functions | |
109 | * | |
110 | ***************************************************************************/ | |
111 | ||
112 | static int se401_sndctrl(int set, struct usb_se401 *se401, unsigned short req, | |
113 | unsigned short value, unsigned char *cp, int size) | |
114 | { | |
115 | return usb_control_msg ( | |
d56410e0 MCC |
116 | se401->dev, |
117 | set ? usb_sndctrlpipe(se401->dev, 0) : usb_rcvctrlpipe(se401->dev, 0), | |
118 | req, | |
119 | (set ? USB_DIR_OUT : USB_DIR_IN) | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
120 | value, | |
121 | 0, | |
122 | cp, | |
123 | size, | |
124 | 1000 | |
125 | ); | |
1da177e4 LT |
126 | } |
127 | ||
128 | static int se401_set_feature(struct usb_se401 *se401, unsigned short selector, | |
129 | unsigned short param) | |
130 | { | |
131 | /* specs say that the selector (address) should go in the value field | |
132 | and the param in index, but in the logs of the windows driver they do | |
133 | this the other way around... | |
134 | */ | |
135 | return usb_control_msg ( | |
136 | se401->dev, | |
137 | usb_sndctrlpipe(se401->dev, 0), | |
138 | SE401_REQ_SET_EXT_FEATURE, | |
139 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
140 | param, | |
141 | selector, | |
d56410e0 MCC |
142 | NULL, |
143 | 0, | |
144 | 1000 | |
145 | ); | |
1da177e4 LT |
146 | } |
147 | ||
d56410e0 MCC |
148 | static unsigned short se401_get_feature(struct usb_se401 *se401, |
149 | unsigned short selector) | |
1da177e4 LT |
150 | { |
151 | /* For 'set' the selecetor should be in index, not sure if the spec is | |
152 | wrong here to.... | |
153 | */ | |
154 | unsigned char cp[2]; | |
d56410e0 MCC |
155 | usb_control_msg ( |
156 | se401->dev, | |
157 | usb_rcvctrlpipe(se401->dev, 0), | |
158 | SE401_REQ_GET_EXT_FEATURE, | |
159 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
160 | 0, | |
161 | selector, | |
162 | cp, | |
163 | 2, | |
164 | 1000 | |
165 | ); | |
1da177e4 LT |
166 | return cp[0]+cp[1]*256; |
167 | } | |
168 | ||
169 | /**************************************************************************** | |
170 | * | |
171 | * Camera control | |
172 | * | |
173 | ***************************************************************************/ | |
174 | ||
175 | ||
176 | static int se401_send_pict(struct usb_se401 *se401) | |
177 | { | |
178 | se401_set_feature(se401, HV7131_REG_TITL, se401->expose_l);/* integration time low */ | |
179 | se401_set_feature(se401, HV7131_REG_TITM, se401->expose_m);/* integration time mid */ | |
180 | se401_set_feature(se401, HV7131_REG_TITU, se401->expose_h);/* integration time mid */ | |
181 | se401_set_feature(se401, HV7131_REG_ARLV, se401->resetlevel);/* reset level value */ | |
182 | se401_set_feature(se401, HV7131_REG_ARCG, se401->rgain);/* red color gain */ | |
183 | se401_set_feature(se401, HV7131_REG_AGCG, se401->ggain);/* green color gain */ | |
184 | se401_set_feature(se401, HV7131_REG_ABCG, se401->bgain);/* blue color gain */ | |
d56410e0 | 185 | |
1da177e4 LT |
186 | return 0; |
187 | } | |
188 | ||
189 | static void se401_set_exposure(struct usb_se401 *se401, int brightness) | |
190 | { | |
191 | int integration=brightness<<5; | |
d56410e0 | 192 | |
1da177e4 LT |
193 | if (flickerless==50) { |
194 | integration=integration-integration%106667; | |
195 | } | |
196 | if (flickerless==60) { | |
197 | integration=integration-integration%88889; | |
198 | } | |
199 | se401->brightness=integration>>5; | |
200 | se401->expose_h=(integration>>16)&0xff; | |
201 | se401->expose_m=(integration>>8)&0xff; | |
202 | se401->expose_l=integration&0xff; | |
203 | } | |
204 | ||
205 | static int se401_get_pict(struct usb_se401 *se401, struct video_picture *p) | |
206 | { | |
207 | p->brightness=se401->brightness; | |
208 | if (se401->enhance) { | |
209 | p->whiteness=32768; | |
210 | } else { | |
211 | p->whiteness=0; | |
212 | } | |
213 | p->colour=65535; | |
214 | p->contrast=65535; | |
215 | p->hue=se401->rgain<<10; | |
216 | p->palette=se401->palette; | |
217 | p->depth=3; /* rgb24 */ | |
218 | return 0; | |
219 | } | |
220 | ||
221 | ||
222 | static int se401_set_pict(struct usb_se401 *se401, struct video_picture *p) | |
223 | { | |
224 | if (p->palette != VIDEO_PALETTE_RGB24) | |
225 | return 1; | |
226 | se401->palette=p->palette; | |
227 | if (p->hue!=se401->hue) { | |
228 | se401->rgain= p->hue>>10; | |
229 | se401->bgain= 0x40-(p->hue>>10); | |
230 | se401->hue=p->hue; | |
231 | } | |
232 | if (p->brightness!=se401->brightness) { | |
233 | se401_set_exposure(se401, p->brightness); | |
234 | } | |
235 | if (p->whiteness>=32768) { | |
236 | se401->enhance=1; | |
237 | } else { | |
238 | se401->enhance=0; | |
239 | } | |
240 | se401_send_pict(se401); | |
241 | se401_send_pict(se401); | |
242 | return 0; | |
243 | } | |
244 | ||
245 | /* | |
246 | Hyundai have some really nice docs about this and other sensor related | |
247 | stuff on their homepage: www.hei.co.kr | |
248 | */ | |
249 | static void se401_auto_resetlevel(struct usb_se401 *se401) | |
250 | { | |
251 | unsigned int ahrc, alrc; | |
252 | int oldreset=se401->resetlevel; | |
253 | ||
254 | /* For some reason this normally read-only register doesn't get reset | |
255 | to zero after reading them just once... | |
256 | */ | |
d56410e0 | 257 | se401_get_feature(se401, HV7131_REG_HIREFNOH); |
1da177e4 LT |
258 | se401_get_feature(se401, HV7131_REG_HIREFNOL); |
259 | se401_get_feature(se401, HV7131_REG_LOREFNOH); | |
260 | se401_get_feature(se401, HV7131_REG_LOREFNOL); | |
d56410e0 | 261 | ahrc=256*se401_get_feature(se401, HV7131_REG_HIREFNOH) + |
1da177e4 LT |
262 | se401_get_feature(se401, HV7131_REG_HIREFNOL); |
263 | alrc=256*se401_get_feature(se401, HV7131_REG_LOREFNOH) + | |
264 | se401_get_feature(se401, HV7131_REG_LOREFNOL); | |
265 | ||
266 | /* Not an exact science, but it seems to work pretty well... */ | |
267 | if (alrc > 10) { | |
268 | while (alrc>=10 && se401->resetlevel < 63) { | |
269 | se401->resetlevel++; | |
270 | alrc /=2; | |
271 | } | |
272 | } else if (ahrc > 20) { | |
273 | while (ahrc>=20 && se401->resetlevel > 0) { | |
274 | se401->resetlevel--; | |
275 | ahrc /=2; | |
276 | } | |
277 | } | |
278 | if (se401->resetlevel!=oldreset) | |
279 | se401_set_feature(se401, HV7131_REG_ARLV, se401->resetlevel); | |
280 | ||
281 | return; | |
282 | } | |
283 | ||
284 | /* irq handler for snapshot button */ | |
7d12e780 | 285 | static void se401_button_irq(struct urb *urb) |
1da177e4 LT |
286 | { |
287 | struct usb_se401 *se401 = urb->context; | |
288 | int status; | |
d56410e0 | 289 | |
1da177e4 LT |
290 | if (!se401->dev) { |
291 | info("ohoh: device vapourished"); | |
292 | return; | |
293 | } | |
d56410e0 | 294 | |
1da177e4 LT |
295 | switch (urb->status) { |
296 | case 0: | |
297 | /* success */ | |
298 | break; | |
299 | case -ECONNRESET: | |
300 | case -ENOENT: | |
301 | case -ESHUTDOWN: | |
302 | /* this urb is terminated, clean up */ | |
303 | dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); | |
304 | return; | |
305 | default: | |
306 | dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); | |
307 | goto exit; | |
308 | } | |
309 | ||
310 | if (urb->actual_length >=2) { | |
311 | if (se401->button) | |
312 | se401->buttonpressed=1; | |
313 | } | |
314 | exit: | |
315 | status = usb_submit_urb (urb, GFP_ATOMIC); | |
316 | if (status) | |
317 | err ("%s - usb_submit_urb failed with result %d", | |
318 | __FUNCTION__, status); | |
319 | } | |
320 | ||
7d12e780 | 321 | static void se401_video_irq(struct urb *urb) |
1da177e4 LT |
322 | { |
323 | struct usb_se401 *se401 = urb->context; | |
324 | int length = urb->actual_length; | |
325 | ||
326 | /* ohoh... */ | |
327 | if (!se401->streaming) | |
328 | return; | |
329 | ||
330 | if (!se401->dev) { | |
331 | info ("ohoh: device vapourished"); | |
332 | return; | |
333 | } | |
334 | ||
335 | /* 0 sized packets happen if we are to fast, but sometimes the camera | |
336 | keeps sending them forever... | |
337 | */ | |
338 | if (length && !urb->status) { | |
339 | se401->nullpackets=0; | |
340 | switch(se401->scratch[se401->scratch_next].state) { | |
341 | case BUFFER_READY: | |
342 | case BUFFER_BUSY: { | |
343 | se401->dropped++; | |
344 | break; | |
345 | } | |
346 | case BUFFER_UNUSED: { | |
347 | memcpy(se401->scratch[se401->scratch_next].data, (unsigned char *)urb->transfer_buffer, length); | |
348 | se401->scratch[se401->scratch_next].state=BUFFER_READY; | |
349 | se401->scratch[se401->scratch_next].offset=se401->bayeroffset; | |
350 | se401->scratch[se401->scratch_next].length=length; | |
351 | if (waitqueue_active(&se401->wq)) { | |
352 | wake_up_interruptible(&se401->wq); | |
353 | } | |
354 | se401->scratch_overflow=0; | |
355 | se401->scratch_next++; | |
356 | if (se401->scratch_next>=SE401_NUMSCRATCH) | |
357 | se401->scratch_next=0; | |
358 | break; | |
359 | } | |
360 | } | |
361 | se401->bayeroffset+=length; | |
362 | if (se401->bayeroffset>=se401->cheight*se401->cwidth) { | |
363 | se401->bayeroffset=0; | |
364 | } | |
365 | } else { | |
366 | se401->nullpackets++; | |
367 | if (se401->nullpackets > SE401_MAX_NULLPACKETS) { | |
368 | if (waitqueue_active(&se401->wq)) { | |
369 | wake_up_interruptible(&se401->wq); | |
d56410e0 | 370 | } |
1da177e4 LT |
371 | } |
372 | } | |
373 | ||
374 | /* Resubmit urb for new data */ | |
375 | urb->status=0; | |
376 | urb->dev=se401->dev; | |
377 | if(usb_submit_urb(urb, GFP_KERNEL)) | |
378 | info("urb burned down"); | |
379 | return; | |
380 | } | |
381 | ||
382 | static void se401_send_size(struct usb_se401 *se401, int width, int height) | |
383 | { | |
384 | int i=0; | |
385 | int mode=0x03; /* No compression */ | |
386 | int sendheight=height; | |
387 | int sendwidth=width; | |
388 | ||
389 | /* JangGu compression can only be used with the camera supported sizes, | |
390 | but bayer seems to work with any size that fits on the sensor. | |
391 | We check if we can use compression with the current size with either | |
392 | 4 or 16 times subcapturing, if not we use uncompressed bayer data | |
393 | but this will result in cutouts of the maximum size.... | |
394 | */ | |
395 | while (i<se401->sizes && !(se401->width[i]==width && se401->height[i]==height)) | |
396 | i++; | |
397 | while (i<se401->sizes) { | |
398 | if (se401->width[i]==width*2 && se401->height[i]==height*2) { | |
399 | sendheight=se401->height[i]; | |
400 | sendwidth=se401->width[i]; | |
401 | mode=0x40; | |
402 | } | |
403 | if (se401->width[i]==width*4 && se401->height[i]==height*4) { | |
404 | sendheight=se401->height[i]; | |
405 | sendwidth=se401->width[i]; | |
406 | mode=0x42; | |
407 | } | |
408 | i++; | |
409 | } | |
410 | ||
411 | se401_sndctrl(1, se401, SE401_REQ_SET_WIDTH, sendwidth, NULL, 0); | |
412 | se401_sndctrl(1, se401, SE401_REQ_SET_HEIGHT, sendheight, NULL, 0); | |
413 | se401_set_feature(se401, SE401_OPERATINGMODE, mode); | |
414 | ||
415 | if (mode==0x03) { | |
416 | se401->format=FMT_BAYER; | |
417 | } else { | |
418 | se401->format=FMT_JANGGU; | |
419 | } | |
420 | ||
421 | return; | |
422 | } | |
423 | ||
424 | /* | |
425 | In this function se401_send_pict is called several times, | |
426 | for some reason (depending on the state of the sensor and the phase of | |
427 | the moon :) doing this only in either place doesn't always work... | |
428 | */ | |
429 | static int se401_start_stream(struct usb_se401 *se401) | |
430 | { | |
431 | struct urb *urb; | |
432 | int err=0, i; | |
433 | se401->streaming=1; | |
434 | ||
d56410e0 MCC |
435 | se401_sndctrl(1, se401, SE401_REQ_CAMERA_POWER, 1, NULL, 0); |
436 | se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 1, NULL, 0); | |
1da177e4 LT |
437 | |
438 | /* Set picture settings */ | |
439 | se401_set_feature(se401, HV7131_REG_MODE_B, 0x05);/*windowed + pix intg */ | |
440 | se401_send_pict(se401); | |
441 | ||
442 | se401_send_size(se401, se401->cwidth, se401->cheight); | |
443 | ||
444 | se401_sndctrl(1, se401, SE401_REQ_START_CONTINUOUS_CAPTURE, 0, NULL, 0); | |
445 | ||
446 | /* Do some memory allocation */ | |
447 | for (i=0; i<SE401_NUMFRAMES; i++) { | |
448 | se401->frame[i].data=se401->fbuf + i * se401->maxframesize; | |
449 | se401->frame[i].curpix=0; | |
450 | } | |
451 | for (i=0; i<SE401_NUMSBUF; i++) { | |
452 | se401->sbuf[i].data=kmalloc(SE401_PACKETSIZE, GFP_KERNEL); | |
453 | } | |
454 | ||
455 | se401->bayeroffset=0; | |
456 | se401->scratch_next=0; | |
457 | se401->scratch_use=0; | |
458 | se401->scratch_overflow=0; | |
459 | for (i=0; i<SE401_NUMSCRATCH; i++) { | |
460 | se401->scratch[i].data=kmalloc(SE401_PACKETSIZE, GFP_KERNEL); | |
461 | se401->scratch[i].state=BUFFER_UNUSED; | |
462 | } | |
463 | ||
464 | for (i=0; i<SE401_NUMSBUF; i++) { | |
465 | urb=usb_alloc_urb(0, GFP_KERNEL); | |
466 | if(!urb) | |
467 | return -ENOMEM; | |
468 | ||
469 | usb_fill_bulk_urb(urb, se401->dev, | |
470 | usb_rcvbulkpipe(se401->dev, SE401_VIDEO_ENDPOINT), | |
471 | se401->sbuf[i].data, SE401_PACKETSIZE, | |
472 | se401_video_irq, | |
473 | se401); | |
474 | ||
475 | se401->urb[i]=urb; | |
476 | ||
477 | err=usb_submit_urb(se401->urb[i], GFP_KERNEL); | |
478 | if(err) | |
479 | err("urb burned down"); | |
480 | } | |
481 | ||
482 | se401->framecount=0; | |
483 | ||
484 | return 0; | |
485 | } | |
486 | ||
487 | static int se401_stop_stream(struct usb_se401 *se401) | |
488 | { | |
489 | int i; | |
490 | ||
491 | if (!se401->streaming || !se401->dev) | |
492 | return 1; | |
493 | ||
494 | se401->streaming=0; | |
495 | ||
496 | se401_sndctrl(1, se401, SE401_REQ_STOP_CONTINUOUS_CAPTURE, 0, NULL, 0); | |
497 | ||
498 | se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 0, NULL, 0); | |
499 | se401_sndctrl(1, se401, SE401_REQ_CAMERA_POWER, 0, NULL, 0); | |
500 | ||
501 | for (i=0; i<SE401_NUMSBUF; i++) if (se401->urb[i]) { | |
502 | usb_kill_urb(se401->urb[i]); | |
503 | usb_free_urb(se401->urb[i]); | |
504 | se401->urb[i]=NULL; | |
505 | kfree(se401->sbuf[i].data); | |
506 | } | |
507 | for (i=0; i<SE401_NUMSCRATCH; i++) { | |
508 | kfree(se401->scratch[i].data); | |
509 | se401->scratch[i].data=NULL; | |
510 | } | |
511 | ||
512 | return 0; | |
513 | } | |
514 | ||
515 | static int se401_set_size(struct usb_se401 *se401, int width, int height) | |
516 | { | |
517 | int wasstreaming=se401->streaming; | |
518 | /* Check to see if we need to change */ | |
519 | if (se401->cwidth==width && se401->cheight==height) | |
520 | return 0; | |
521 | ||
522 | /* Check for a valid mode */ | |
523 | if (!width || !height) | |
524 | return 1; | |
525 | if ((width & 1) || (height & 1)) | |
526 | return 1; | |
527 | if (width>se401->width[se401->sizes-1]) | |
528 | return 1; | |
529 | if (height>se401->height[se401->sizes-1]) | |
530 | return 1; | |
531 | ||
532 | /* Stop a current stream and start it again at the new size */ | |
533 | if (wasstreaming) | |
534 | se401_stop_stream(se401); | |
535 | se401->cwidth=width; | |
536 | se401->cheight=height; | |
537 | if (wasstreaming) | |
538 | se401_start_stream(se401); | |
539 | return 0; | |
540 | } | |
541 | ||
542 | ||
543 | /**************************************************************************** | |
544 | * | |
545 | * Video Decoding | |
546 | * | |
547 | ***************************************************************************/ | |
548 | ||
549 | /* | |
550 | This shouldn't really be done in a v4l driver.... | |
551 | But it does make the image look a lot more usable. | |
552 | Basically it lifts the dark pixels more than the light pixels. | |
553 | */ | |
554 | static inline void enhance_picture(unsigned char *frame, int len) | |
555 | { | |
556 | while (len--) { | |
557 | *frame=(((*frame^255)*(*frame^255))/255)^255; | |
558 | frame++; | |
559 | } | |
560 | } | |
561 | ||
562 | static inline void decode_JangGu_integrate(struct usb_se401 *se401, int data) | |
563 | { | |
564 | struct se401_frame *frame=&se401->frame[se401->curframe]; | |
565 | int linelength=se401->cwidth*3; | |
566 | ||
567 | if (frame->curlinepix >= linelength) { | |
568 | frame->curlinepix=0; | |
569 | frame->curline+=linelength; | |
570 | } | |
571 | ||
572 | /* First three are absolute, all others relative. | |
d56410e0 | 573 | * Format is rgb from right to left (mirrorred image), |
1da177e4 LT |
574 | * we flip it to get bgr from left to right. */ |
575 | if (frame->curlinepix < 3) { | |
576 | *(frame->curline-frame->curlinepix)=1+data*4; | |
577 | } else { | |
578 | *(frame->curline-frame->curlinepix)= | |
579 | *(frame->curline-frame->curlinepix+3)+data*4; | |
580 | } | |
581 | frame->curlinepix++; | |
582 | } | |
583 | ||
584 | static inline void decode_JangGu_vlc (struct usb_se401 *se401, unsigned char *data, int bit_exp, int packetlength) | |
585 | { | |
586 | int pos=0; | |
587 | int vlc_cod=0; | |
588 | int vlc_size=0; | |
589 | int vlc_data=0; | |
590 | int bit_cur; | |
591 | int bit; | |
592 | data+=4; | |
593 | while (pos < packetlength) { | |
594 | bit_cur=8; | |
595 | while (bit_cur && bit_exp) { | |
596 | bit=((*data)>>(bit_cur-1))&1; | |
597 | if (!vlc_cod) { | |
598 | if (bit) { | |
599 | vlc_size++; | |
600 | } else { | |
601 | if (!vlc_size) { | |
602 | decode_JangGu_integrate(se401, 0); | |
603 | } else { | |
604 | vlc_cod=2; | |
605 | vlc_data=0; | |
606 | } | |
607 | } | |
608 | } else { | |
609 | if (vlc_cod==2) { | |
610 | if (!bit) | |
611 | vlc_data = -(1<<vlc_size) + 1; | |
612 | vlc_cod--; | |
613 | } | |
614 | vlc_size--; | |
615 | vlc_data+=bit<<vlc_size; | |
616 | if (!vlc_size) { | |
617 | decode_JangGu_integrate(se401, vlc_data); | |
618 | vlc_cod=0; | |
619 | } | |
620 | } | |
621 | bit_cur--; | |
622 | bit_exp--; | |
623 | } | |
624 | pos++; | |
625 | data++; | |
626 | } | |
627 | } | |
628 | ||
629 | static inline void decode_JangGu (struct usb_se401 *se401, struct se401_scratch *buffer) | |
630 | { | |
631 | unsigned char *data=buffer->data; | |
632 | int len=buffer->length; | |
633 | int bit_exp=0, pix_exp=0, frameinfo=0, packetlength=0, size; | |
634 | int datapos=0; | |
635 | ||
636 | /* New image? */ | |
637 | if (!se401->frame[se401->curframe].curpix) { | |
638 | se401->frame[se401->curframe].curlinepix=0; | |
639 | se401->frame[se401->curframe].curline= | |
640 | se401->frame[se401->curframe].data+ | |
641 | se401->cwidth*3-1; | |
642 | if (se401->frame[se401->curframe].grabstate==FRAME_READY) | |
643 | se401->frame[se401->curframe].grabstate=FRAME_GRABBING; | |
644 | se401->vlcdatapos=0; | |
645 | } | |
646 | while (datapos < len) { | |
647 | size=1024-se401->vlcdatapos; | |
648 | if (size+datapos > len) | |
649 | size=len-datapos; | |
650 | memcpy(se401->vlcdata+se401->vlcdatapos, data+datapos, size); | |
651 | se401->vlcdatapos+=size; | |
652 | packetlength=0; | |
653 | if (se401->vlcdatapos >= 4) { | |
654 | bit_exp=se401->vlcdata[3]+(se401->vlcdata[2]<<8); | |
655 | pix_exp=se401->vlcdata[1]+((se401->vlcdata[0]&0x3f)<<8); | |
656 | frameinfo=se401->vlcdata[0]&0xc0; | |
657 | packetlength=((bit_exp+47)>>4)<<1; | |
658 | if (packetlength > 1024) { | |
659 | se401->vlcdatapos=0; | |
660 | datapos=len; | |
661 | packetlength=0; | |
662 | se401->error++; | |
663 | se401->frame[se401->curframe].curpix=0; | |
664 | } | |
665 | } | |
666 | if (packetlength && se401->vlcdatapos >= packetlength) { | |
667 | decode_JangGu_vlc(se401, se401->vlcdata, bit_exp, packetlength); | |
668 | se401->frame[se401->curframe].curpix+=pix_exp*3; | |
669 | datapos+=size-(se401->vlcdatapos-packetlength); | |
670 | se401->vlcdatapos=0; | |
671 | if (se401->frame[se401->curframe].curpix>=se401->cwidth*se401->cheight*3) { | |
672 | if (se401->frame[se401->curframe].curpix==se401->cwidth*se401->cheight*3) { | |
673 | if (se401->frame[se401->curframe].grabstate==FRAME_GRABBING) { | |
674 | se401->frame[se401->curframe].grabstate=FRAME_DONE; | |
675 | se401->framecount++; | |
676 | se401->readcount++; | |
677 | } | |
678 | if (se401->frame[(se401->curframe+1)&(SE401_NUMFRAMES-1)].grabstate==FRAME_READY) { | |
679 | se401->curframe=(se401->curframe+1) & (SE401_NUMFRAMES-1); | |
680 | } | |
681 | } else { | |
682 | se401->error++; | |
683 | } | |
684 | se401->frame[se401->curframe].curpix=0; | |
685 | datapos=len; | |
686 | } | |
687 | } else { | |
688 | datapos+=size; | |
689 | } | |
690 | } | |
691 | } | |
692 | ||
693 | static inline void decode_bayer (struct usb_se401 *se401, struct se401_scratch *buffer) | |
694 | { | |
695 | unsigned char *data=buffer->data; | |
696 | int len=buffer->length; | |
697 | int offset=buffer->offset; | |
698 | int datasize=se401->cwidth*se401->cheight; | |
699 | struct se401_frame *frame=&se401->frame[se401->curframe]; | |
700 | ||
701 | unsigned char *framedata=frame->data, *curline, *nextline; | |
702 | int width=se401->cwidth; | |
703 | int blineoffset=0, bline; | |
704 | int linelength=width*3, i; | |
d56410e0 | 705 | |
1da177e4 LT |
706 | |
707 | if (frame->curpix==0) { | |
708 | if (frame->grabstate==FRAME_READY) { | |
709 | frame->grabstate=FRAME_GRABBING; | |
710 | } | |
711 | frame->curline=framedata+linelength; | |
712 | frame->curlinepix=0; | |
713 | } | |
714 | ||
715 | if (offset!=frame->curpix) { | |
716 | /* Regard frame as lost :( */ | |
717 | frame->curpix=0; | |
718 | se401->error++; | |
719 | return; | |
720 | } | |
721 | ||
722 | /* Check if we have to much data */ | |
723 | if (frame->curpix+len > datasize) { | |
724 | len=datasize-frame->curpix; | |
725 | } | |
726 | if (se401->cheight%4) | |
727 | blineoffset=1; | |
728 | bline=frame->curpix/se401->cwidth+blineoffset; | |
729 | ||
730 | curline=frame->curline; | |
731 | nextline=curline+linelength; | |
732 | if (nextline >= framedata+datasize*3) | |
733 | nextline=curline; | |
734 | while (len) { | |
735 | if (frame->curlinepix>=width) { | |
736 | frame->curlinepix-=width; | |
737 | bline=frame->curpix/width+blineoffset; | |
738 | curline+=linelength*2; | |
739 | nextline+=linelength*2; | |
740 | if (curline >= framedata+datasize*3) { | |
741 | frame->curlinepix++; | |
742 | curline-=3; | |
743 | nextline-=3; | |
744 | len--; | |
745 | data++; | |
746 | frame->curpix++; | |
747 | } | |
748 | if (nextline >= framedata+datasize*3) | |
749 | nextline=curline; | |
750 | } | |
751 | if ((bline&1)) { | |
752 | if ((frame->curlinepix&1)) { | |
753 | *(curline+2)=*data; | |
754 | *(curline-1)=*data; | |
755 | *(nextline+2)=*data; | |
756 | *(nextline-1)=*data; | |
757 | } else { | |
758 | *(curline+1)= | |
759 | (*(curline+1)+*data)/2; | |
760 | *(curline-2)= | |
761 | (*(curline-2)+*data)/2; | |
762 | *(nextline+1)=*data; | |
763 | *(nextline-2)=*data; | |
764 | } | |
765 | } else { | |
766 | if ((frame->curlinepix&1)) { | |
767 | *(curline+1)= | |
768 | (*(curline+1)+*data)/2; | |
769 | *(curline-2)= | |
770 | (*(curline-2)+*data)/2; | |
771 | *(nextline+1)=*data; | |
772 | *(nextline-2)=*data; | |
773 | } else { | |
774 | *curline=*data; | |
775 | *(curline-3)=*data; | |
776 | *nextline=*data; | |
777 | *(nextline-3)=*data; | |
778 | } | |
779 | } | |
780 | frame->curlinepix++; | |
781 | curline-=3; | |
782 | nextline-=3; | |
783 | len--; | |
784 | data++; | |
785 | frame->curpix++; | |
786 | } | |
787 | frame->curline=curline; | |
788 | ||
789 | if (frame->curpix>=datasize) { | |
790 | /* Fix the top line */ | |
791 | framedata+=linelength; | |
792 | for (i=0; i<linelength; i++) { | |
793 | framedata--; | |
794 | *framedata=*(framedata+linelength); | |
795 | } | |
796 | /* Fix the left side (green is already present) */ | |
797 | for (i=0; i<se401->cheight; i++) { | |
798 | *framedata=*(framedata+3); | |
799 | *(framedata+1)=*(framedata+4); | |
800 | *(framedata+2)=*(framedata+5); | |
801 | framedata+=linelength; | |
802 | } | |
803 | frame->curpix=0; | |
804 | frame->grabstate=FRAME_DONE; | |
805 | se401->framecount++; | |
806 | se401->readcount++; | |
807 | if (se401->frame[(se401->curframe+1)&(SE401_NUMFRAMES-1)].grabstate==FRAME_READY) { | |
808 | se401->curframe=(se401->curframe+1) & (SE401_NUMFRAMES-1); | |
809 | } | |
810 | } | |
811 | } | |
812 | ||
813 | static int se401_newframe(struct usb_se401 *se401, int framenr) | |
814 | { | |
815 | DECLARE_WAITQUEUE(wait, current); | |
816 | int errors=0; | |
817 | ||
818 | while (se401->streaming && | |
819 | (se401->frame[framenr].grabstate==FRAME_READY || | |
820 | se401->frame[framenr].grabstate==FRAME_GRABBING) ) { | |
821 | if(!se401->frame[framenr].curpix) { | |
822 | errors++; | |
823 | } | |
824 | wait_interruptible( | |
825 | se401->scratch[se401->scratch_use].state!=BUFFER_READY, | |
826 | &se401->wq, | |
827 | &wait | |
828 | ); | |
829 | if (se401->nullpackets > SE401_MAX_NULLPACKETS) { | |
830 | se401->nullpackets=0; | |
831 | info("to many null length packets, restarting capture"); | |
832 | se401_stop_stream(se401); | |
d56410e0 | 833 | se401_start_stream(se401); |
1da177e4 LT |
834 | } else { |
835 | if (se401->scratch[se401->scratch_use].state!=BUFFER_READY) { | |
836 | se401->frame[framenr].grabstate=FRAME_ERROR; | |
837 | return -EIO; | |
838 | } | |
839 | se401->scratch[se401->scratch_use].state=BUFFER_BUSY; | |
840 | if (se401->format==FMT_JANGGU) { | |
841 | decode_JangGu(se401, &se401->scratch[se401->scratch_use]); | |
842 | } else { | |
843 | decode_bayer(se401, &se401->scratch[se401->scratch_use]); | |
844 | } | |
845 | se401->scratch[se401->scratch_use].state=BUFFER_UNUSED; | |
846 | se401->scratch_use++; | |
847 | if (se401->scratch_use>=SE401_NUMSCRATCH) | |
848 | se401->scratch_use=0; | |
849 | if (errors > SE401_MAX_ERRORS) { | |
850 | errors=0; | |
851 | info("to much errors, restarting capture"); | |
852 | se401_stop_stream(se401); | |
853 | se401_start_stream(se401); | |
854 | } | |
855 | } | |
856 | } | |
857 | ||
858 | if (se401->frame[framenr].grabstate==FRAME_DONE) | |
859 | if (se401->enhance) | |
860 | enhance_picture(se401->frame[framenr].data, se401->cheight*se401->cwidth*3); | |
861 | return 0; | |
862 | } | |
863 | ||
864 | static void usb_se401_remove_disconnected (struct usb_se401 *se401) | |
865 | { | |
866 | int i; | |
867 | ||
d56410e0 | 868 | se401->dev = NULL; |
1da177e4 | 869 | |
1bc3c9e1 JJ |
870 | for (i=0; i<SE401_NUMSBUF; i++) |
871 | if (se401->urb[i]) { | |
872 | usb_kill_urb(se401->urb[i]); | |
873 | usb_free_urb(se401->urb[i]); | |
874 | se401->urb[i] = NULL; | |
875 | kfree(se401->sbuf[i].data); | |
876 | } | |
877 | for (i=0; i<SE401_NUMSCRATCH; i++) { | |
1da177e4 LT |
878 | kfree(se401->scratch[i].data); |
879 | } | |
880 | if (se401->inturb) { | |
881 | usb_kill_urb(se401->inturb); | |
882 | usb_free_urb(se401->inturb); | |
883 | } | |
d56410e0 | 884 | info("%s disconnected", se401->camera_name); |
1da177e4 | 885 | |
d56410e0 | 886 | /* Free the memory */ |
1da177e4 LT |
887 | kfree(se401->width); |
888 | kfree(se401->height); | |
889 | kfree(se401); | |
890 | } | |
891 | ||
892 | ||
893 | ||
894 | /**************************************************************************** | |
895 | * | |
896 | * Video4Linux | |
897 | * | |
898 | ***************************************************************************/ | |
899 | ||
900 | ||
901 | static int se401_open(struct inode *inode, struct file *file) | |
902 | { | |
903 | struct video_device *dev = video_devdata(file); | |
904 | struct usb_se401 *se401 = (struct usb_se401 *)dev; | |
905 | int err = 0; | |
906 | ||
907 | if (se401->user) | |
908 | return -EBUSY; | |
909 | se401->fbuf = rvmalloc(se401->maxframesize * SE401_NUMFRAMES); | |
910 | if (se401->fbuf) | |
911 | file->private_data = dev; | |
d56410e0 | 912 | else |
1da177e4 LT |
913 | err = -ENOMEM; |
914 | se401->user = !err; | |
915 | ||
916 | return err; | |
917 | } | |
918 | ||
919 | static int se401_close(struct inode *inode, struct file *file) | |
920 | { | |
921 | struct video_device *dev = file->private_data; | |
d56410e0 | 922 | struct usb_se401 *se401 = (struct usb_se401 *)dev; |
1da177e4 LT |
923 | int i; |
924 | ||
925 | rvfree(se401->fbuf, se401->maxframesize * SE401_NUMFRAMES); | |
d56410e0 | 926 | if (se401->removed) { |
1da177e4 LT |
927 | usb_se401_remove_disconnected(se401); |
928 | info("device unregistered"); | |
929 | } else { | |
930 | for (i=0; i<SE401_NUMFRAMES; i++) | |
931 | se401->frame[i].grabstate=FRAME_UNUSED; | |
932 | if (se401->streaming) | |
933 | se401_stop_stream(se401); | |
934 | se401->user=0; | |
935 | } | |
936 | file->private_data = NULL; | |
937 | return 0; | |
938 | } | |
939 | ||
940 | static int se401_do_ioctl(struct inode *inode, struct file *file, | |
941 | unsigned int cmd, void *arg) | |
942 | { | |
943 | struct video_device *vdev = file->private_data; | |
d56410e0 | 944 | struct usb_se401 *se401 = (struct usb_se401 *)vdev; |
1da177e4 | 945 | |
d56410e0 MCC |
946 | if (!se401->dev) |
947 | return -EIO; | |
1da177e4 | 948 | |
d56410e0 | 949 | switch (cmd) { |
1da177e4 LT |
950 | case VIDIOCGCAP: |
951 | { | |
952 | struct video_capability *b = arg; | |
953 | strcpy(b->name, se401->camera_name); | |
954 | b->type = VID_TYPE_CAPTURE; | |
955 | b->channels = 1; | |
956 | b->audios = 0; | |
957 | b->maxwidth = se401->width[se401->sizes-1]; | |
958 | b->maxheight = se401->height[se401->sizes-1]; | |
959 | b->minwidth = se401->width[0]; | |
960 | b->minheight = se401->height[0]; | |
961 | return 0; | |
962 | } | |
963 | case VIDIOCGCHAN: | |
964 | { | |
965 | struct video_channel *v = arg; | |
966 | ||
967 | if (v->channel != 0) | |
968 | return -EINVAL; | |
969 | v->flags = 0; | |
970 | v->tuners = 0; | |
971 | v->type = VIDEO_TYPE_CAMERA; | |
972 | strcpy(v->name, "Camera"); | |
973 | return 0; | |
974 | } | |
975 | case VIDIOCSCHAN: | |
976 | { | |
977 | struct video_channel *v = arg; | |
978 | ||
979 | if (v->channel != 0) | |
980 | return -EINVAL; | |
981 | return 0; | |
982 | } | |
d56410e0 MCC |
983 | case VIDIOCGPICT: |
984 | { | |
1da177e4 LT |
985 | struct video_picture *p = arg; |
986 | ||
987 | se401_get_pict(se401, p); | |
988 | return 0; | |
989 | } | |
990 | case VIDIOCSPICT: | |
991 | { | |
992 | struct video_picture *p = arg; | |
993 | ||
994 | if (se401_set_pict(se401, p)) | |
995 | return -EINVAL; | |
996 | return 0; | |
997 | } | |
998 | case VIDIOCSWIN: | |
999 | { | |
1000 | struct video_window *vw = arg; | |
1001 | ||
1002 | if (vw->flags) | |
1003 | return -EINVAL; | |
1004 | if (vw->clipcount) | |
1005 | return -EINVAL; | |
1006 | if (se401_set_size(se401, vw->width, vw->height)) | |
1007 | return -EINVAL; | |
1008 | return 0; | |
d56410e0 | 1009 | } |
1da177e4 LT |
1010 | case VIDIOCGWIN: |
1011 | { | |
1012 | struct video_window *vw = arg; | |
1013 | ||
1014 | vw->x = 0; /* FIXME */ | |
1015 | vw->y = 0; | |
1016 | vw->chromakey = 0; | |
1017 | vw->flags = 0; | |
1018 | vw->clipcount = 0; | |
1019 | vw->width = se401->cwidth; | |
1020 | vw->height = se401->cheight; | |
1021 | return 0; | |
1022 | } | |
1023 | case VIDIOCGMBUF: | |
1024 | { | |
1025 | struct video_mbuf *vm = arg; | |
1026 | int i; | |
1027 | ||
1028 | memset(vm, 0, sizeof(*vm)); | |
1029 | vm->size = SE401_NUMFRAMES * se401->maxframesize; | |
1030 | vm->frames = SE401_NUMFRAMES; | |
1031 | for (i=0; i<SE401_NUMFRAMES; i++) | |
1032 | vm->offsets[i] = se401->maxframesize * i; | |
1033 | return 0; | |
1034 | } | |
1035 | case VIDIOCMCAPTURE: | |
1036 | { | |
1037 | struct video_mmap *vm = arg; | |
1038 | ||
1039 | if (vm->format != VIDEO_PALETTE_RGB24) | |
1040 | return -EINVAL; | |
1041 | if (vm->frame >= SE401_NUMFRAMES) | |
1042 | return -EINVAL; | |
1043 | if (se401->frame[vm->frame].grabstate != FRAME_UNUSED) | |
1044 | return -EBUSY; | |
1045 | ||
1046 | /* Is this according to the v4l spec??? */ | |
1047 | if (se401_set_size(se401, vm->width, vm->height)) | |
1048 | return -EINVAL; | |
1049 | se401->frame[vm->frame].grabstate=FRAME_READY; | |
1050 | ||
1051 | if (!se401->streaming) | |
1052 | se401_start_stream(se401); | |
1053 | ||
1054 | /* Set the picture properties */ | |
1055 | if (se401->framecount==0) | |
1056 | se401_send_pict(se401); | |
1057 | /* Calibrate the reset level after a few frames. */ | |
1058 | if (se401->framecount%20==1) | |
1059 | se401_auto_resetlevel(se401); | |
1060 | ||
1061 | return 0; | |
1062 | } | |
1063 | case VIDIOCSYNC: | |
1064 | { | |
1065 | int *frame = arg; | |
1066 | int ret=0; | |
1067 | ||
1068 | if(*frame <0 || *frame >= SE401_NUMFRAMES) | |
1069 | return -EINVAL; | |
1070 | ||
1071 | ret=se401_newframe(se401, *frame); | |
1072 | se401->frame[*frame].grabstate=FRAME_UNUSED; | |
1073 | return ret; | |
1074 | } | |
1075 | case VIDIOCGFBUF: | |
1076 | { | |
1077 | struct video_buffer *vb = arg; | |
1078 | ||
1079 | memset(vb, 0, sizeof(*vb)); | |
1080 | return 0; | |
1081 | } | |
1082 | case VIDIOCKEY: | |
1083 | return 0; | |
1084 | case VIDIOCCAPTURE: | |
1085 | return -EINVAL; | |
1086 | case VIDIOCSFBUF: | |
1087 | return -EINVAL; | |
1088 | case VIDIOCGTUNER: | |
1089 | case VIDIOCSTUNER: | |
1090 | return -EINVAL; | |
1091 | case VIDIOCGFREQ: | |
1092 | case VIDIOCSFREQ: | |
1093 | return -EINVAL; | |
1094 | case VIDIOCGAUDIO: | |
1095 | case VIDIOCSAUDIO: | |
1096 | return -EINVAL; | |
d56410e0 MCC |
1097 | default: |
1098 | return -ENOIOCTLCMD; | |
1099 | } /* end switch */ | |
1da177e4 | 1100 | |
d56410e0 | 1101 | return 0; |
1da177e4 LT |
1102 | } |
1103 | ||
1104 | static int se401_ioctl(struct inode *inode, struct file *file, | |
1105 | unsigned int cmd, unsigned long arg) | |
1106 | { | |
1107 | return video_usercopy(inode, file, cmd, arg, se401_do_ioctl); | |
1108 | } | |
1109 | ||
1110 | static ssize_t se401_read(struct file *file, char __user *buf, | |
1111 | size_t count, loff_t *ppos) | |
1112 | { | |
1113 | int realcount=count, ret=0; | |
1114 | struct video_device *dev = file->private_data; | |
1115 | struct usb_se401 *se401 = (struct usb_se401 *)dev; | |
1116 | ||
1117 | ||
1118 | if (se401->dev == NULL) | |
1119 | return -EIO; | |
1120 | if (realcount > se401->cwidth*se401->cheight*3) | |
1121 | realcount=se401->cwidth*se401->cheight*3; | |
1122 | ||
1123 | /* Shouldn't happen: */ | |
1124 | if (se401->frame[0].grabstate==FRAME_GRABBING) | |
1125 | return -EBUSY; | |
1126 | se401->frame[0].grabstate=FRAME_READY; | |
1127 | se401->frame[1].grabstate=FRAME_UNUSED; | |
1128 | se401->curframe=0; | |
1129 | ||
1130 | if (!se401->streaming) | |
1131 | se401_start_stream(se401); | |
1132 | ||
1133 | /* Set the picture properties */ | |
1134 | if (se401->framecount==0) | |
1135 | se401_send_pict(se401); | |
1136 | /* Calibrate the reset level after a few frames. */ | |
1137 | if (se401->framecount%20==1) | |
1138 | se401_auto_resetlevel(se401); | |
1139 | ||
1140 | ret=se401_newframe(se401, 0); | |
1141 | ||
1142 | se401->frame[0].grabstate=FRAME_UNUSED; | |
1143 | if (ret) | |
d56410e0 | 1144 | return ret; |
1da177e4 LT |
1145 | if (copy_to_user(buf, se401->frame[0].data, realcount)) |
1146 | return -EFAULT; | |
1147 | ||
1148 | return realcount; | |
1149 | } | |
1150 | ||
1151 | static int se401_mmap(struct file *file, struct vm_area_struct *vma) | |
1152 | { | |
1153 | struct video_device *dev = file->private_data; | |
1154 | struct usb_se401 *se401 = (struct usb_se401 *)dev; | |
1155 | unsigned long start = vma->vm_start; | |
1156 | unsigned long size = vma->vm_end-vma->vm_start; | |
1157 | unsigned long page, pos; | |
1158 | ||
4186ecf8 | 1159 | mutex_lock(&se401->lock); |
1da177e4 LT |
1160 | |
1161 | if (se401->dev == NULL) { | |
4186ecf8 | 1162 | mutex_unlock(&se401->lock); |
1da177e4 LT |
1163 | return -EIO; |
1164 | } | |
1165 | if (size > (((SE401_NUMFRAMES * se401->maxframesize) + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1))) { | |
4186ecf8 | 1166 | mutex_unlock(&se401->lock); |
1da177e4 LT |
1167 | return -EINVAL; |
1168 | } | |
1169 | pos = (unsigned long)se401->fbuf; | |
1170 | while (size > 0) { | |
1171 | page = vmalloc_to_pfn((void *)pos); | |
1172 | if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) { | |
4186ecf8 | 1173 | mutex_unlock(&se401->lock); |
1da177e4 LT |
1174 | return -EAGAIN; |
1175 | } | |
1176 | start += PAGE_SIZE; | |
1177 | pos += PAGE_SIZE; | |
1178 | if (size > PAGE_SIZE) | |
1179 | size -= PAGE_SIZE; | |
1180 | else | |
1181 | size = 0; | |
1182 | } | |
4186ecf8 | 1183 | mutex_unlock(&se401->lock); |
1da177e4 | 1184 | |
d56410e0 | 1185 | return 0; |
1da177e4 LT |
1186 | } |
1187 | ||
1188 | static struct file_operations se401_fops = { | |
1189 | .owner = THIS_MODULE, | |
d56410e0 MCC |
1190 | .open = se401_open, |
1191 | .release = se401_close, | |
1192 | .read = se401_read, | |
1193 | .mmap = se401_mmap, | |
1da177e4 | 1194 | .ioctl = se401_ioctl, |
0d0fbf81 | 1195 | .compat_ioctl = v4l_compat_ioctl32, |
1da177e4 LT |
1196 | .llseek = no_llseek, |
1197 | }; | |
1198 | static struct video_device se401_template = { | |
1199 | .owner = THIS_MODULE, | |
d56410e0 MCC |
1200 | .name = "se401 USB camera", |
1201 | .type = VID_TYPE_CAPTURE, | |
1202 | .hardware = VID_HARDWARE_SE401, | |
1da177e4 LT |
1203 | .fops = &se401_fops, |
1204 | }; | |
1205 | ||
1206 | ||
1207 | ||
1208 | /***************************/ | |
1209 | static int se401_init(struct usb_se401 *se401, int button) | |
1210 | { | |
d56410e0 MCC |
1211 | int i=0, rc; |
1212 | unsigned char cp[0x40]; | |
1da177e4 LT |
1213 | char temp[200]; |
1214 | ||
1215 | /* led on */ | |
d56410e0 | 1216 | se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 1, NULL, 0); |
1da177e4 LT |
1217 | |
1218 | /* get camera descriptor */ | |
1219 | rc=se401_sndctrl(0, se401, SE401_REQ_GET_CAMERA_DESCRIPTOR, 0, cp, sizeof(cp)); | |
1220 | if (cp[1]!=0x41) { | |
1221 | err("Wrong descriptor type"); | |
1222 | return 1; | |
1223 | } | |
1224 | sprintf (temp, "ExtraFeatures: %d", cp[3]); | |
1225 | ||
1226 | se401->sizes=cp[4]+cp[5]*256; | |
1227 | se401->width=kmalloc(se401->sizes*sizeof(int), GFP_KERNEL); | |
1228 | if (!se401->width) | |
1229 | return 1; | |
1230 | se401->height=kmalloc(se401->sizes*sizeof(int), GFP_KERNEL); | |
1231 | if (!se401->height) { | |
1232 | kfree(se401->width); | |
1233 | return 1; | |
1234 | } | |
1235 | for (i=0; i<se401->sizes; i++) { | |
1236 | se401->width[i]=cp[6+i*4+0]+cp[6+i*4+1]*256; | |
1237 | se401->height[i]=cp[6+i*4+2]+cp[6+i*4+3]*256; | |
1238 | } | |
1239 | sprintf (temp, "%s Sizes:", temp); | |
1240 | for (i=0; i<se401->sizes; i++) { | |
1241 | sprintf(temp, "%s %dx%d", temp, se401->width[i], se401->height[i]); | |
1242 | } | |
1243 | info("%s", temp); | |
1244 | se401->maxframesize=se401->width[se401->sizes-1]*se401->height[se401->sizes-1]*3; | |
1245 | ||
1246 | rc=se401_sndctrl(0, se401, SE401_REQ_GET_WIDTH, 0, cp, sizeof(cp)); | |
1247 | se401->cwidth=cp[0]+cp[1]*256; | |
1248 | rc=se401_sndctrl(0, se401, SE401_REQ_GET_HEIGHT, 0, cp, sizeof(cp)); | |
1249 | se401->cheight=cp[0]+cp[1]*256; | |
1250 | ||
1251 | if (!cp[2] && SE401_FORMAT_BAYER) { | |
1252 | err("Bayer format not supported!"); | |
1253 | return 1; | |
1254 | } | |
1255 | /* set output mode (BAYER) */ | |
d56410e0 | 1256 | se401_sndctrl(1, se401, SE401_REQ_SET_OUTPUT_MODE, SE401_FORMAT_BAYER, NULL, 0); |
1da177e4 LT |
1257 | |
1258 | rc=se401_sndctrl(0, se401, SE401_REQ_GET_BRT, 0, cp, sizeof(cp)); | |
1259 | se401->brightness=cp[0]+cp[1]*256; | |
1260 | /* some default values */ | |
1261 | se401->resetlevel=0x2d; | |
1262 | se401->rgain=0x20; | |
1263 | se401->ggain=0x20; | |
1264 | se401->bgain=0x20; | |
1265 | se401_set_exposure(se401, 20000); | |
1266 | se401->palette=VIDEO_PALETTE_RGB24; | |
1267 | se401->enhance=1; | |
1268 | se401->dropped=0; | |
1269 | se401->error=0; | |
1270 | se401->framecount=0; | |
1271 | se401->readcount=0; | |
1272 | ||
1273 | /* Start interrupt transfers for snapshot button */ | |
1274 | if (button) { | |
1275 | se401->inturb=usb_alloc_urb(0, GFP_KERNEL); | |
1276 | if (!se401->inturb) { | |
1277 | info("Allocation of inturb failed"); | |
1278 | return 1; | |
1279 | } | |
1280 | usb_fill_int_urb(se401->inturb, se401->dev, | |
1281 | usb_rcvintpipe(se401->dev, SE401_BUTTON_ENDPOINT), | |
1282 | &se401->button, sizeof(se401->button), | |
1283 | se401_button_irq, | |
1284 | se401, | |
1285 | 8 | |
1286 | ); | |
1287 | if (usb_submit_urb(se401->inturb, GFP_KERNEL)) { | |
1288 | info("int urb burned down"); | |
1289 | return 1; | |
1290 | } | |
1291 | } else | |
1292 | se401->inturb=NULL; | |
1293 | ||
d56410e0 MCC |
1294 | /* Flash the led */ |
1295 | se401_sndctrl(1, se401, SE401_REQ_CAMERA_POWER, 1, NULL, 0); | |
1296 | se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 1, NULL, 0); | |
1297 | se401_sndctrl(1, se401, SE401_REQ_CAMERA_POWER, 0, NULL, 0); | |
1da177e4 LT |
1298 | se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 0, NULL, 0); |
1299 | ||
d56410e0 | 1300 | return 0; |
1da177e4 LT |
1301 | } |
1302 | ||
1303 | static int se401_probe(struct usb_interface *intf, | |
1304 | const struct usb_device_id *id) | |
1305 | { | |
1306 | struct usb_device *dev = interface_to_usbdev(intf); | |
d56410e0 MCC |
1307 | struct usb_interface_descriptor *interface; |
1308 | struct usb_se401 *se401; | |
1309 | char *camera_name=NULL; | |
1da177e4 LT |
1310 | int button=1; |
1311 | ||
d56410e0 MCC |
1312 | /* We don't handle multi-config cameras */ |
1313 | if (dev->descriptor.bNumConfigurations != 1) | |
1314 | return -ENODEV; | |
1da177e4 | 1315 | |
d56410e0 | 1316 | interface = &intf->cur_altsetting->desc; |
1da177e4 | 1317 | |
d56410e0 MCC |
1318 | /* Is it an se401? */ |
1319 | if (le16_to_cpu(dev->descriptor.idVendor) == 0x03e8 && | |
1320 | le16_to_cpu(dev->descriptor.idProduct) == 0x0004) { | |
1321 | camera_name="Endpoints/Aox SE401"; | |
1322 | } else if (le16_to_cpu(dev->descriptor.idVendor) == 0x0471 && | |
1323 | le16_to_cpu(dev->descriptor.idProduct) == 0x030b) { | |
1324 | camera_name="Philips PCVC665K"; | |
1325 | } else if (le16_to_cpu(dev->descriptor.idVendor) == 0x047d && | |
1da177e4 LT |
1326 | le16_to_cpu(dev->descriptor.idProduct) == 0x5001) { |
1327 | camera_name="Kensington VideoCAM 67014"; | |
d56410e0 | 1328 | } else if (le16_to_cpu(dev->descriptor.idVendor) == 0x047d && |
1da177e4 LT |
1329 | le16_to_cpu(dev->descriptor.idProduct) == 0x5002) { |
1330 | camera_name="Kensington VideoCAM 6701(5/7)"; | |
d56410e0 | 1331 | } else if (le16_to_cpu(dev->descriptor.idVendor) == 0x047d && |
1da177e4 LT |
1332 | le16_to_cpu(dev->descriptor.idProduct) == 0x5003) { |
1333 | camera_name="Kensington VideoCAM 67016"; | |
1334 | button=0; | |
1335 | } else | |
1336 | return -ENODEV; | |
1337 | ||
d56410e0 MCC |
1338 | /* Checking vendor/product should be enough, but what the hell */ |
1339 | if (interface->bInterfaceClass != 0x00) | |
1da177e4 | 1340 | return -ENODEV; |
d56410e0 | 1341 | if (interface->bInterfaceSubClass != 0x00) |
1da177e4 LT |
1342 | return -ENODEV; |
1343 | ||
d56410e0 MCC |
1344 | /* We found one */ |
1345 | info("SE401 camera found: %s", camera_name); | |
1da177e4 | 1346 | |
d56410e0 MCC |
1347 | if ((se401 = kzalloc(sizeof(*se401), GFP_KERNEL)) == NULL) { |
1348 | err("couldn't kmalloc se401 struct"); | |
1da177e4 | 1349 | return -ENOMEM; |
d56410e0 | 1350 | } |
1da177e4 | 1351 | |
d56410e0 MCC |
1352 | se401->dev = dev; |
1353 | se401->iface = interface->bInterfaceNumber; | |
1354 | se401->camera_name = camera_name; | |
1da177e4 LT |
1355 | |
1356 | info("firmware version: %02x", le16_to_cpu(dev->descriptor.bcdDevice) & 255); | |
1357 | ||
d56410e0 | 1358 | if (se401_init(se401, button)) { |
1da177e4 LT |
1359 | kfree(se401); |
1360 | return -EIO; | |
1361 | } | |
1362 | ||
1363 | memcpy(&se401->vdev, &se401_template, sizeof(se401_template)); | |
1364 | memcpy(se401->vdev.name, se401->camera_name, strlen(se401->camera_name)); | |
1365 | init_waitqueue_head(&se401->wq); | |
4186ecf8 | 1366 | mutex_init(&se401->lock); |
1da177e4 LT |
1367 | wmb(); |
1368 | ||
1369 | if (video_register_device(&se401->vdev, VFL_TYPE_GRABBER, video_nr) == -1) { | |
1370 | kfree(se401); | |
1371 | err("video_register_device failed"); | |
1372 | return -EIO; | |
1373 | } | |
1374 | info("registered new video device: video%d", se401->vdev.minor); | |
1375 | ||
1376 | usb_set_intfdata (intf, se401); | |
d56410e0 | 1377 | return 0; |
1da177e4 LT |
1378 | } |
1379 | ||
1380 | static void se401_disconnect(struct usb_interface *intf) | |
1381 | { | |
1382 | struct usb_se401 *se401 = usb_get_intfdata (intf); | |
1383 | ||
1384 | usb_set_intfdata (intf, NULL); | |
1385 | if (se401) { | |
1386 | video_unregister_device(&se401->vdev); | |
1387 | if (!se401->user){ | |
1388 | usb_se401_remove_disconnected(se401); | |
1389 | } else { | |
1390 | se401->frame[0].grabstate = FRAME_ERROR; | |
1391 | se401->frame[0].grabstate = FRAME_ERROR; | |
1392 | ||
1393 | se401->streaming = 0; | |
1394 | ||
1395 | wake_up_interruptible(&se401->wq); | |
1396 | se401->removed = 1; | |
1397 | } | |
1398 | } | |
1399 | } | |
1400 | ||
1401 | static struct usb_driver se401_driver = { | |
d56410e0 MCC |
1402 | .name = "se401", |
1403 | .id_table = device_table, | |
1da177e4 | 1404 | .probe = se401_probe, |
d56410e0 | 1405 | .disconnect = se401_disconnect, |
1da177e4 LT |
1406 | }; |
1407 | ||
1408 | ||
1409 | ||
1410 | /**************************************************************************** | |
1411 | * | |
1412 | * Module routines | |
1413 | * | |
1414 | ***************************************************************************/ | |
1415 | ||
1416 | static int __init usb_se401_init(void) | |
1417 | { | |
1418 | info("SE401 usb camera driver version %s registering", version); | |
1419 | if (flickerless) | |
1420 | if (flickerless!=50 && flickerless!=60) { | |
1421 | info("Invallid flickerless value, use 0, 50 or 60."); | |
1422 | return -1; | |
1423 | } | |
1424 | return usb_register(&se401_driver); | |
1425 | } | |
1426 | ||
1427 | static void __exit usb_se401_exit(void) | |
1428 | { | |
1429 | usb_deregister(&se401_driver); | |
1430 | info("SE401 driver deregistered"); | |
1431 | } | |
1432 | ||
1433 | module_init(usb_se401_init); | |
1434 | module_exit(usb_se401_exit); |