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Commit | Line | Data |
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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 | ||
ff699e6b | 38 | static int flickerless; |
1da177e4 LT |
39 | static int video_nr = -1; |
40 | ||
aae40fd2 | 41 | static struct usb_device_id device_table[] = { |
1da177e4 LT |
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); | |
aae40fd2 AC |
56 | MODULE_PARM_DESC(flickerless, |
57 | "Net frequency to adjust exposure time to (0/50/60)"); | |
1da177e4 LT |
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)); | |
aae40fd2 AC |
82 | adr += PAGE_SIZE; |
83 | size -= PAGE_SIZE; | |
1da177e4 LT |
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)); | |
aae40fd2 AC |
99 | adr += PAGE_SIZE; |
100 | size -= PAGE_SIZE; | |
1da177e4 LT |
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 | { | |
aae40fd2 | 116 | return usb_control_msg( |
d56410e0 MCC |
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 | ); | |
1da177e4 LT |
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 | */ | |
aae40fd2 | 136 | return usb_control_msg( |
1da177e4 LT |
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, | |
d56410e0 MCC |
143 | NULL, |
144 | 0, | |
145 | 1000 | |
146 | ); | |
1da177e4 LT |
147 | } |
148 | ||
d56410e0 MCC |
149 | static unsigned short se401_get_feature(struct usb_se401 *se401, |
150 | unsigned short selector) | |
1da177e4 LT |
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]; | |
aae40fd2 | 156 | usb_control_msg( |
d56410e0 MCC |
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 | ); | |
1da177e4 LT |
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 | { | |
aae40fd2 AC |
179 | /* integration time low */ |
180 | se401_set_feature(se401, HV7131_REG_TITL, se401->expose_l); | |
181 | /* integration time mid */ | |
182 | se401_set_feature(se401, HV7131_REG_TITM, se401->expose_m); | |
183 | /* integration time mid */ | |
184 | se401_set_feature(se401, HV7131_REG_TITU, se401->expose_h); | |
185 | /* reset level value */ | |
186 | se401_set_feature(se401, HV7131_REG_ARLV, se401->resetlevel); | |
187 | /* red color gain */ | |
188 | se401_set_feature(se401, HV7131_REG_ARCG, se401->rgain); | |
189 | /* green color gain */ | |
190 | se401_set_feature(se401, HV7131_REG_AGCG, se401->ggain); | |
191 | /* blue color gain */ | |
192 | se401_set_feature(se401, HV7131_REG_ABCG, se401->bgain); | |
d56410e0 | 193 | |
1da177e4 LT |
194 | return 0; |
195 | } | |
196 | ||
197 | static void se401_set_exposure(struct usb_se401 *se401, int brightness) | |
198 | { | |
aae40fd2 AC |
199 | int integration = brightness << 5; |
200 | ||
201 | if (flickerless == 50) | |
202 | integration = integration-integration % 106667; | |
203 | if (flickerless == 60) | |
204 | integration = integration-integration % 88889; | |
205 | se401->brightness = integration >> 5; | |
206 | se401->expose_h = (integration >> 16) & 0xff; | |
207 | se401->expose_m = (integration >> 8) & 0xff; | |
208 | se401->expose_l = integration & 0xff; | |
1da177e4 LT |
209 | } |
210 | ||
211 | static int se401_get_pict(struct usb_se401 *se401, struct video_picture *p) | |
212 | { | |
aae40fd2 AC |
213 | p->brightness = se401->brightness; |
214 | if (se401->enhance) | |
215 | p->whiteness = 32768; | |
216 | else | |
217 | p->whiteness = 0; | |
218 | ||
219 | p->colour = 65535; | |
220 | p->contrast = 65535; | |
221 | p->hue = se401->rgain << 10; | |
222 | p->palette = se401->palette; | |
223 | p->depth = 3; /* rgb24 */ | |
1da177e4 LT |
224 | return 0; |
225 | } | |
226 | ||
227 | ||
228 | static int se401_set_pict(struct usb_se401 *se401, struct video_picture *p) | |
229 | { | |
230 | if (p->palette != VIDEO_PALETTE_RGB24) | |
231 | return 1; | |
aae40fd2 AC |
232 | se401->palette = p->palette; |
233 | if (p->hue != se401->hue) { | |
234 | se401->rgain = p->hue >> 10; | |
235 | se401->bgain = 0x40-(p->hue >> 10); | |
236 | se401->hue = p->hue; | |
1da177e4 | 237 | } |
aae40fd2 | 238 | if (p->brightness != se401->brightness) |
1da177e4 | 239 | se401_set_exposure(se401, p->brightness); |
aae40fd2 AC |
240 | |
241 | if (p->whiteness >= 32768) | |
242 | se401->enhance = 1; | |
243 | else | |
244 | se401->enhance = 0; | |
1da177e4 LT |
245 | se401_send_pict(se401); |
246 | se401_send_pict(se401); | |
247 | return 0; | |
248 | } | |
249 | ||
250 | /* | |
251 | Hyundai have some really nice docs about this and other sensor related | |
252 | stuff on their homepage: www.hei.co.kr | |
253 | */ | |
254 | static void se401_auto_resetlevel(struct usb_se401 *se401) | |
255 | { | |
256 | unsigned int ahrc, alrc; | |
aae40fd2 | 257 | int oldreset = se401->resetlevel; |
1da177e4 LT |
258 | |
259 | /* For some reason this normally read-only register doesn't get reset | |
260 | to zero after reading them just once... | |
261 | */ | |
d56410e0 | 262 | se401_get_feature(se401, HV7131_REG_HIREFNOH); |
1da177e4 LT |
263 | se401_get_feature(se401, HV7131_REG_HIREFNOL); |
264 | se401_get_feature(se401, HV7131_REG_LOREFNOH); | |
265 | se401_get_feature(se401, HV7131_REG_LOREFNOL); | |
aae40fd2 | 266 | ahrc = 256*se401_get_feature(se401, HV7131_REG_HIREFNOH) + |
1da177e4 | 267 | se401_get_feature(se401, HV7131_REG_HIREFNOL); |
aae40fd2 | 268 | alrc = 256*se401_get_feature(se401, HV7131_REG_LOREFNOH) + |
1da177e4 LT |
269 | se401_get_feature(se401, HV7131_REG_LOREFNOL); |
270 | ||
271 | /* Not an exact science, but it seems to work pretty well... */ | |
272 | if (alrc > 10) { | |
aae40fd2 | 273 | while (alrc >= 10 && se401->resetlevel < 63) { |
1da177e4 | 274 | se401->resetlevel++; |
aae40fd2 | 275 | alrc /= 2; |
1da177e4 LT |
276 | } |
277 | } else if (ahrc > 20) { | |
aae40fd2 | 278 | while (ahrc >= 20 && se401->resetlevel > 0) { |
1da177e4 | 279 | se401->resetlevel--; |
aae40fd2 | 280 | ahrc /= 2; |
1da177e4 LT |
281 | } |
282 | } | |
aae40fd2 | 283 | if (se401->resetlevel != oldreset) |
1da177e4 LT |
284 | se401_set_feature(se401, HV7131_REG_ARLV, se401->resetlevel); |
285 | ||
286 | return; | |
287 | } | |
288 | ||
289 | /* irq handler for snapshot button */ | |
7d12e780 | 290 | static void se401_button_irq(struct urb *urb) |
1da177e4 LT |
291 | { |
292 | struct usb_se401 *se401 = urb->context; | |
293 | int status; | |
d56410e0 | 294 | |
1da177e4 | 295 | if (!se401->dev) { |
a482f327 | 296 | dev_info(&urb->dev->dev, "device vapourished\n"); |
1da177e4 LT |
297 | return; |
298 | } | |
d56410e0 | 299 | |
1da177e4 LT |
300 | switch (urb->status) { |
301 | case 0: | |
302 | /* success */ | |
303 | break; | |
304 | case -ECONNRESET: | |
305 | case -ENOENT: | |
306 | case -ESHUTDOWN: | |
307 | /* this urb is terminated, clean up */ | |
aae40fd2 AC |
308 | dbg("%s - urb shutting down with status: %d", |
309 | __func__, urb->status); | |
1da177e4 LT |
310 | return; |
311 | default: | |
aae40fd2 AC |
312 | dbg("%s - nonzero urb status received: %d", |
313 | __func__, urb->status); | |
1da177e4 LT |
314 | goto exit; |
315 | } | |
316 | ||
aae40fd2 | 317 | if (urb->actual_length >= 2) |
1da177e4 | 318 | if (se401->button) |
aae40fd2 | 319 | se401->buttonpressed = 1; |
1da177e4 | 320 | exit: |
aae40fd2 | 321 | status = usb_submit_urb(urb, GFP_ATOMIC); |
1da177e4 | 322 | if (status) |
aae40fd2 | 323 | err("%s - usb_submit_urb failed with result %d", |
7e28adb2 | 324 | __func__, status); |
1da177e4 LT |
325 | } |
326 | ||
7d12e780 | 327 | static void se401_video_irq(struct urb *urb) |
1da177e4 LT |
328 | { |
329 | struct usb_se401 *se401 = urb->context; | |
330 | int length = urb->actual_length; | |
331 | ||
332 | /* ohoh... */ | |
333 | if (!se401->streaming) | |
334 | return; | |
335 | ||
336 | if (!se401->dev) { | |
a482f327 | 337 | dev_info(&urb->dev->dev, "device vapourished\n"); |
1da177e4 LT |
338 | return; |
339 | } | |
340 | ||
341 | /* 0 sized packets happen if we are to fast, but sometimes the camera | |
342 | keeps sending them forever... | |
343 | */ | |
344 | if (length && !urb->status) { | |
aae40fd2 AC |
345 | se401->nullpackets = 0; |
346 | switch (se401->scratch[se401->scratch_next].state) { | |
347 | case BUFFER_READY: | |
348 | case BUFFER_BUSY: | |
349 | se401->dropped++; | |
350 | break; | |
351 | case BUFFER_UNUSED: | |
352 | memcpy(se401->scratch[se401->scratch_next].data, | |
353 | (unsigned char *)urb->transfer_buffer, length); | |
354 | se401->scratch[se401->scratch_next].state | |
355 | = BUFFER_READY; | |
356 | se401->scratch[se401->scratch_next].offset | |
357 | = se401->bayeroffset; | |
358 | se401->scratch[se401->scratch_next].length = length; | |
359 | if (waitqueue_active(&se401->wq)) | |
360 | wake_up_interruptible(&se401->wq); | |
361 | se401->scratch_overflow = 0; | |
362 | se401->scratch_next++; | |
363 | if (se401->scratch_next >= SE401_NUMSCRATCH) | |
364 | se401->scratch_next = 0; | |
365 | break; | |
1da177e4 | 366 | } |
aae40fd2 AC |
367 | se401->bayeroffset += length; |
368 | if (se401->bayeroffset >= se401->cheight * se401->cwidth) | |
369 | se401->bayeroffset = 0; | |
1da177e4 LT |
370 | } else { |
371 | se401->nullpackets++; | |
aae40fd2 AC |
372 | if (se401->nullpackets > SE401_MAX_NULLPACKETS) |
373 | if (waitqueue_active(&se401->wq)) | |
1da177e4 | 374 | wake_up_interruptible(&se401->wq); |
1da177e4 LT |
375 | } |
376 | ||
377 | /* Resubmit urb for new data */ | |
aae40fd2 AC |
378 | urb->status = 0; |
379 | urb->dev = se401->dev; | |
380 | if (usb_submit_urb(urb, GFP_KERNEL)) | |
a482f327 | 381 | dev_info(&urb->dev->dev, "urb burned down\n"); |
1da177e4 LT |
382 | return; |
383 | } | |
384 | ||
385 | static void se401_send_size(struct usb_se401 *se401, int width, int height) | |
386 | { | |
aae40fd2 AC |
387 | int i = 0; |
388 | int mode = 0x03; /* No compression */ | |
389 | int sendheight = height; | |
390 | int sendwidth = width; | |
1da177e4 LT |
391 | |
392 | /* JangGu compression can only be used with the camera supported sizes, | |
393 | but bayer seems to work with any size that fits on the sensor. | |
394 | We check if we can use compression with the current size with either | |
395 | 4 or 16 times subcapturing, if not we use uncompressed bayer data | |
396 | but this will result in cutouts of the maximum size.... | |
397 | */ | |
aae40fd2 AC |
398 | while (i < se401->sizes && !(se401->width[i] == width && |
399 | se401->height[i] == height)) | |
1da177e4 | 400 | i++; |
aae40fd2 AC |
401 | while (i < se401->sizes) { |
402 | if (se401->width[i] == width * 2 && | |
403 | se401->height[i] == height * 2) { | |
404 | sendheight = se401->height[i]; | |
405 | sendwidth = se401->width[i]; | |
406 | mode = 0x40; | |
1da177e4 | 407 | } |
aae40fd2 AC |
408 | if (se401->width[i] == width * 4 && |
409 | se401->height[i] == height * 4) { | |
410 | sendheight = se401->height[i]; | |
411 | sendwidth = se401->width[i]; | |
412 | mode = 0x42; | |
1da177e4 LT |
413 | } |
414 | i++; | |
415 | } | |
416 | ||
417 | se401_sndctrl(1, se401, SE401_REQ_SET_WIDTH, sendwidth, NULL, 0); | |
418 | se401_sndctrl(1, se401, SE401_REQ_SET_HEIGHT, sendheight, NULL, 0); | |
419 | se401_set_feature(se401, SE401_OPERATINGMODE, mode); | |
420 | ||
aae40fd2 AC |
421 | if (mode == 0x03) |
422 | se401->format = FMT_BAYER; | |
423 | else | |
424 | se401->format = FMT_JANGGU; | |
1da177e4 LT |
425 | } |
426 | ||
427 | /* | |
428 | In this function se401_send_pict is called several times, | |
429 | for some reason (depending on the state of the sensor and the phase of | |
430 | the moon :) doing this only in either place doesn't always work... | |
431 | */ | |
432 | static int se401_start_stream(struct usb_se401 *se401) | |
433 | { | |
434 | struct urb *urb; | |
aae40fd2 AC |
435 | int err = 0, i; |
436 | se401->streaming = 1; | |
1da177e4 | 437 | |
d56410e0 MCC |
438 | se401_sndctrl(1, se401, SE401_REQ_CAMERA_POWER, 1, NULL, 0); |
439 | se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 1, NULL, 0); | |
1da177e4 LT |
440 | |
441 | /* Set picture settings */ | |
aae40fd2 AC |
442 | /* windowed + pix intg */ |
443 | se401_set_feature(se401, HV7131_REG_MODE_B, 0x05); | |
1da177e4 LT |
444 | se401_send_pict(se401); |
445 | ||
446 | se401_send_size(se401, se401->cwidth, se401->cheight); | |
447 | ||
aae40fd2 AC |
448 | se401_sndctrl(1, se401, SE401_REQ_START_CONTINUOUS_CAPTURE, |
449 | 0, NULL, 0); | |
1da177e4 LT |
450 | |
451 | /* Do some memory allocation */ | |
aae40fd2 AC |
452 | for (i = 0; i < SE401_NUMFRAMES; i++) { |
453 | se401->frame[i].data = se401->fbuf + i * se401->maxframesize; | |
454 | se401->frame[i].curpix = 0; | |
1da177e4 | 455 | } |
aae40fd2 AC |
456 | for (i = 0; i < SE401_NUMSBUF; i++) { |
457 | se401->sbuf[i].data = kmalloc(SE401_PACKETSIZE, GFP_KERNEL); | |
fd51c697 | 458 | if (!se401->sbuf[i].data) { |
aae40fd2 | 459 | for (i = i - 1; i >= 0; i--) { |
fd51c697 AC |
460 | kfree(se401->sbuf[i].data); |
461 | se401->sbuf[i].data = NULL; | |
462 | } | |
463 | return -ENOMEM; | |
464 | } | |
1da177e4 LT |
465 | } |
466 | ||
aae40fd2 AC |
467 | se401->bayeroffset = 0; |
468 | se401->scratch_next = 0; | |
469 | se401->scratch_use = 0; | |
470 | se401->scratch_overflow = 0; | |
471 | for (i = 0; i < SE401_NUMSCRATCH; i++) { | |
472 | se401->scratch[i].data = kmalloc(SE401_PACKETSIZE, GFP_KERNEL); | |
fd51c697 | 473 | if (!se401->scratch[i].data) { |
aae40fd2 | 474 | for (i = i - 1; i >= 0; i--) { |
fd51c697 AC |
475 | kfree(se401->scratch[i].data); |
476 | se401->scratch[i].data = NULL; | |
477 | } | |
478 | goto nomem_sbuf; | |
479 | } | |
aae40fd2 | 480 | se401->scratch[i].state = BUFFER_UNUSED; |
1da177e4 LT |
481 | } |
482 | ||
aae40fd2 AC |
483 | for (i = 0; i < SE401_NUMSBUF; i++) { |
484 | urb = usb_alloc_urb(0, GFP_KERNEL); | |
485 | if (!urb) { | |
486 | for (i = i - 1; i >= 0; i--) { | |
fd51c697 AC |
487 | usb_kill_urb(se401->urb[i]); |
488 | usb_free_urb(se401->urb[i]); | |
489 | se401->urb[i] = NULL; | |
490 | } | |
491 | goto nomem_scratch; | |
492 | } | |
1da177e4 LT |
493 | |
494 | usb_fill_bulk_urb(urb, se401->dev, | |
495 | usb_rcvbulkpipe(se401->dev, SE401_VIDEO_ENDPOINT), | |
496 | se401->sbuf[i].data, SE401_PACKETSIZE, | |
497 | se401_video_irq, | |
498 | se401); | |
499 | ||
aae40fd2 | 500 | se401->urb[i] = urb; |
1da177e4 | 501 | |
aae40fd2 AC |
502 | err = usb_submit_urb(se401->urb[i], GFP_KERNEL); |
503 | if (err) | |
1da177e4 LT |
504 | err("urb burned down"); |
505 | } | |
506 | ||
aae40fd2 | 507 | se401->framecount = 0; |
1da177e4 LT |
508 | |
509 | return 0; | |
fd51c697 AC |
510 | |
511 | nomem_scratch: | |
aae40fd2 | 512 | for (i = 0; i < SE401_NUMSCRATCH; i++) { |
fd51c697 AC |
513 | kfree(se401->scratch[i].data); |
514 | se401->scratch[i].data = NULL; | |
515 | } | |
516 | nomem_sbuf: | |
aae40fd2 | 517 | for (i = 0; i < SE401_NUMSBUF; i++) { |
fd51c697 AC |
518 | kfree(se401->sbuf[i].data); |
519 | se401->sbuf[i].data = NULL; | |
520 | } | |
521 | return -ENOMEM; | |
1da177e4 LT |
522 | } |
523 | ||
524 | static int se401_stop_stream(struct usb_se401 *se401) | |
525 | { | |
526 | int i; | |
527 | ||
528 | if (!se401->streaming || !se401->dev) | |
529 | return 1; | |
530 | ||
aae40fd2 | 531 | se401->streaming = 0; |
1da177e4 LT |
532 | |
533 | se401_sndctrl(1, se401, SE401_REQ_STOP_CONTINUOUS_CAPTURE, 0, NULL, 0); | |
534 | ||
535 | se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 0, NULL, 0); | |
536 | se401_sndctrl(1, se401, SE401_REQ_CAMERA_POWER, 0, NULL, 0); | |
537 | ||
aae40fd2 AC |
538 | for (i = 0; i < SE401_NUMSBUF; i++) |
539 | if (se401->urb[i]) { | |
540 | usb_kill_urb(se401->urb[i]); | |
541 | usb_free_urb(se401->urb[i]); | |
542 | se401->urb[i] = NULL; | |
543 | kfree(se401->sbuf[i].data); | |
544 | } | |
545 | for (i = 0; i < SE401_NUMSCRATCH; i++) { | |
1da177e4 | 546 | kfree(se401->scratch[i].data); |
aae40fd2 | 547 | se401->scratch[i].data = NULL; |
1da177e4 LT |
548 | } |
549 | ||
550 | return 0; | |
551 | } | |
552 | ||
553 | static int se401_set_size(struct usb_se401 *se401, int width, int height) | |
554 | { | |
aae40fd2 | 555 | int wasstreaming = se401->streaming; |
1da177e4 | 556 | /* Check to see if we need to change */ |
aae40fd2 | 557 | if (se401->cwidth == width && se401->cheight == height) |
1da177e4 LT |
558 | return 0; |
559 | ||
560 | /* Check for a valid mode */ | |
561 | if (!width || !height) | |
562 | return 1; | |
563 | if ((width & 1) || (height & 1)) | |
564 | return 1; | |
aae40fd2 | 565 | if (width > se401->width[se401->sizes-1]) |
1da177e4 | 566 | return 1; |
aae40fd2 | 567 | if (height > se401->height[se401->sizes-1]) |
1da177e4 LT |
568 | return 1; |
569 | ||
570 | /* Stop a current stream and start it again at the new size */ | |
571 | if (wasstreaming) | |
572 | se401_stop_stream(se401); | |
aae40fd2 AC |
573 | se401->cwidth = width; |
574 | se401->cheight = height; | |
1da177e4 LT |
575 | if (wasstreaming) |
576 | se401_start_stream(se401); | |
577 | return 0; | |
578 | } | |
579 | ||
580 | ||
581 | /**************************************************************************** | |
582 | * | |
583 | * Video Decoding | |
584 | * | |
585 | ***************************************************************************/ | |
586 | ||
587 | /* | |
588 | This shouldn't really be done in a v4l driver.... | |
589 | But it does make the image look a lot more usable. | |
590 | Basically it lifts the dark pixels more than the light pixels. | |
591 | */ | |
592 | static inline void enhance_picture(unsigned char *frame, int len) | |
593 | { | |
594 | while (len--) { | |
aae40fd2 | 595 | *frame = (((*frame^255)*(*frame^255))/255)^255; |
1da177e4 LT |
596 | frame++; |
597 | } | |
598 | } | |
599 | ||
600 | static inline void decode_JangGu_integrate(struct usb_se401 *se401, int data) | |
601 | { | |
aae40fd2 AC |
602 | struct se401_frame *frame = &se401->frame[se401->curframe]; |
603 | int linelength = se401->cwidth * 3; | |
1da177e4 LT |
604 | |
605 | if (frame->curlinepix >= linelength) { | |
aae40fd2 AC |
606 | frame->curlinepix = 0; |
607 | frame->curline += linelength; | |
1da177e4 LT |
608 | } |
609 | ||
610 | /* First three are absolute, all others relative. | |
d56410e0 | 611 | * Format is rgb from right to left (mirrorred image), |
1da177e4 | 612 | * we flip it to get bgr from left to right. */ |
aae40fd2 AC |
613 | if (frame->curlinepix < 3) |
614 | *(frame->curline-frame->curlinepix) = 1 + data * 4; | |
615 | else | |
616 | *(frame->curline-frame->curlinepix) = | |
617 | *(frame->curline-frame->curlinepix + 3) + data * 4; | |
1da177e4 LT |
618 | frame->curlinepix++; |
619 | } | |
620 | ||
aae40fd2 AC |
621 | static inline void decode_JangGu_vlc(struct usb_se401 *se401, |
622 | unsigned char *data, int bit_exp, int packetlength) | |
1da177e4 | 623 | { |
aae40fd2 AC |
624 | int pos = 0; |
625 | int vlc_cod = 0; | |
626 | int vlc_size = 0; | |
627 | int vlc_data = 0; | |
1da177e4 LT |
628 | int bit_cur; |
629 | int bit; | |
aae40fd2 | 630 | data += 4; |
1da177e4 | 631 | while (pos < packetlength) { |
aae40fd2 | 632 | bit_cur = 8; |
1da177e4 | 633 | while (bit_cur && bit_exp) { |
aae40fd2 | 634 | bit = ((*data) >> (bit_cur-1))&1; |
1da177e4 LT |
635 | if (!vlc_cod) { |
636 | if (bit) { | |
637 | vlc_size++; | |
638 | } else { | |
aae40fd2 | 639 | if (!vlc_size) |
1da177e4 | 640 | decode_JangGu_integrate(se401, 0); |
aae40fd2 AC |
641 | else { |
642 | vlc_cod = 2; | |
643 | vlc_data = 0; | |
1da177e4 LT |
644 | } |
645 | } | |
646 | } else { | |
aae40fd2 | 647 | if (vlc_cod == 2) { |
1da177e4 | 648 | if (!bit) |
aae40fd2 | 649 | vlc_data = -(1 << vlc_size) + 1; |
1da177e4 LT |
650 | vlc_cod--; |
651 | } | |
652 | vlc_size--; | |
aae40fd2 | 653 | vlc_data += bit << vlc_size; |
1da177e4 LT |
654 | if (!vlc_size) { |
655 | decode_JangGu_integrate(se401, vlc_data); | |
aae40fd2 | 656 | vlc_cod = 0; |
1da177e4 LT |
657 | } |
658 | } | |
659 | bit_cur--; | |
660 | bit_exp--; | |
661 | } | |
662 | pos++; | |
663 | data++; | |
664 | } | |
665 | } | |
666 | ||
aae40fd2 AC |
667 | static inline void decode_JangGu(struct usb_se401 *se401, |
668 | struct se401_scratch *buffer) | |
1da177e4 | 669 | { |
aae40fd2 AC |
670 | unsigned char *data = buffer->data; |
671 | int len = buffer->length; | |
672 | int bit_exp = 0, pix_exp = 0, frameinfo = 0, packetlength = 0, size; | |
673 | int datapos = 0; | |
1da177e4 LT |
674 | |
675 | /* New image? */ | |
676 | if (!se401->frame[se401->curframe].curpix) { | |
aae40fd2 AC |
677 | se401->frame[se401->curframe].curlinepix = 0; |
678 | se401->frame[se401->curframe].curline = | |
1da177e4 | 679 | se401->frame[se401->curframe].data+ |
aae40fd2 AC |
680 | se401->cwidth * 3 - 1; |
681 | if (se401->frame[se401->curframe].grabstate == FRAME_READY) | |
682 | se401->frame[se401->curframe].grabstate = FRAME_GRABBING; | |
683 | se401->vlcdatapos = 0; | |
1da177e4 LT |
684 | } |
685 | while (datapos < len) { | |
aae40fd2 | 686 | size = 1024 - se401->vlcdatapos; |
1da177e4 | 687 | if (size+datapos > len) |
aae40fd2 | 688 | size = len-datapos; |
1da177e4 | 689 | memcpy(se401->vlcdata+se401->vlcdatapos, data+datapos, size); |
aae40fd2 AC |
690 | se401->vlcdatapos += size; |
691 | packetlength = 0; | |
1da177e4 | 692 | if (se401->vlcdatapos >= 4) { |
aae40fd2 AC |
693 | bit_exp = se401->vlcdata[3] + (se401->vlcdata[2] << 8); |
694 | pix_exp = se401->vlcdata[1] + | |
695 | ((se401->vlcdata[0] & 0x3f) << 8); | |
696 | frameinfo = se401->vlcdata[0] & 0xc0; | |
697 | packetlength = ((bit_exp + 47) >> 4) << 1; | |
1da177e4 | 698 | if (packetlength > 1024) { |
aae40fd2 AC |
699 | se401->vlcdatapos = 0; |
700 | datapos = len; | |
701 | packetlength = 0; | |
1da177e4 | 702 | se401->error++; |
aae40fd2 | 703 | se401->frame[se401->curframe].curpix = 0; |
1da177e4 LT |
704 | } |
705 | } | |
706 | if (packetlength && se401->vlcdatapos >= packetlength) { | |
aae40fd2 AC |
707 | decode_JangGu_vlc(se401, se401->vlcdata, bit_exp, |
708 | packetlength); | |
709 | se401->frame[se401->curframe].curpix += pix_exp * 3; | |
710 | datapos += size-(se401->vlcdatapos-packetlength); | |
711 | se401->vlcdatapos = 0; | |
712 | if (se401->frame[se401->curframe].curpix >= se401->cwidth * se401->cheight * 3) { | |
713 | if (se401->frame[se401->curframe].curpix == se401->cwidth * se401->cheight * 3) { | |
714 | if (se401->frame[se401->curframe].grabstate == FRAME_GRABBING) { | |
715 | se401->frame[se401->curframe].grabstate = FRAME_DONE; | |
1da177e4 LT |
716 | se401->framecount++; |
717 | se401->readcount++; | |
718 | } | |
aae40fd2 AC |
719 | if (se401->frame[(se401->curframe + 1) & (SE401_NUMFRAMES - 1)].grabstate == FRAME_READY) |
720 | se401->curframe = (se401->curframe + 1) & (SE401_NUMFRAMES - 1); | |
721 | } else | |
1da177e4 | 722 | se401->error++; |
aae40fd2 AC |
723 | se401->frame[se401->curframe].curpix = 0; |
724 | datapos = len; | |
1da177e4 | 725 | } |
aae40fd2 AC |
726 | } else |
727 | datapos += size; | |
1da177e4 LT |
728 | } |
729 | } | |
730 | ||
aae40fd2 AC |
731 | static inline void decode_bayer(struct usb_se401 *se401, |
732 | struct se401_scratch *buffer) | |
1da177e4 | 733 | { |
aae40fd2 AC |
734 | unsigned char *data = buffer->data; |
735 | int len = buffer->length; | |
736 | int offset = buffer->offset; | |
737 | int datasize = se401->cwidth * se401->cheight; | |
738 | struct se401_frame *frame = &se401->frame[se401->curframe]; | |
739 | unsigned char *framedata = frame->data, *curline, *nextline; | |
740 | int width = se401->cwidth; | |
741 | int blineoffset = 0, bline; | |
742 | int linelength = width * 3, i; | |
1da177e4 | 743 | |
d56410e0 | 744 | |
aae40fd2 AC |
745 | if (frame->curpix == 0) { |
746 | if (frame->grabstate == FRAME_READY) | |
747 | frame->grabstate = FRAME_GRABBING; | |
1da177e4 | 748 | |
aae40fd2 AC |
749 | frame->curline = framedata + linelength; |
750 | frame->curlinepix = 0; | |
1da177e4 LT |
751 | } |
752 | ||
aae40fd2 | 753 | if (offset != frame->curpix) { |
1da177e4 | 754 | /* Regard frame as lost :( */ |
aae40fd2 | 755 | frame->curpix = 0; |
1da177e4 LT |
756 | se401->error++; |
757 | return; | |
758 | } | |
759 | ||
760 | /* Check if we have to much data */ | |
aae40fd2 AC |
761 | if (frame->curpix + len > datasize) |
762 | len = datasize-frame->curpix; | |
763 | ||
764 | if (se401->cheight % 4) | |
765 | blineoffset = 1; | |
766 | bline = frame->curpix / se401->cwidth+blineoffset; | |
767 | ||
768 | curline = frame->curline; | |
769 | nextline = curline + linelength; | |
770 | if (nextline >= framedata+datasize * 3) | |
771 | nextline = curline; | |
1da177e4 | 772 | while (len) { |
aae40fd2 AC |
773 | if (frame->curlinepix >= width) { |
774 | frame->curlinepix -= width; | |
775 | bline = frame->curpix / width + blineoffset; | |
776 | curline += linelength*2; | |
777 | nextline += linelength*2; | |
778 | if (curline >= framedata+datasize * 3) { | |
1da177e4 | 779 | frame->curlinepix++; |
aae40fd2 AC |
780 | curline -= 3; |
781 | nextline -= 3; | |
1da177e4 LT |
782 | len--; |
783 | data++; | |
784 | frame->curpix++; | |
785 | } | |
786 | if (nextline >= framedata+datasize*3) | |
aae40fd2 | 787 | nextline = curline; |
1da177e4 | 788 | } |
aae40fd2 AC |
789 | if (bline & 1) { |
790 | if (frame->curlinepix & 1) { | |
791 | *(curline + 2) = *data; | |
792 | *(curline - 1) = *data; | |
793 | *(nextline + 2) = *data; | |
794 | *(nextline - 1) = *data; | |
1da177e4 | 795 | } else { |
aae40fd2 AC |
796 | *(curline + 1) = |
797 | (*(curline + 1) + *data) / 2; | |
798 | *(curline-2) = | |
799 | (*(curline - 2) + *data) / 2; | |
800 | *(nextline + 1) = *data; | |
801 | *(nextline - 2) = *data; | |
1da177e4 LT |
802 | } |
803 | } else { | |
aae40fd2 AC |
804 | if (frame->curlinepix & 1) { |
805 | *(curline + 1) = | |
806 | (*(curline + 1) + *data) / 2; | |
807 | *(curline - 2) = | |
808 | (*(curline - 2) + *data) / 2; | |
809 | *(nextline + 1) = *data; | |
810 | *(nextline - 2) = *data; | |
1da177e4 | 811 | } else { |
aae40fd2 AC |
812 | *curline = *data; |
813 | *(curline - 3) = *data; | |
814 | *nextline = *data; | |
815 | *(nextline - 3) = *data; | |
1da177e4 LT |
816 | } |
817 | } | |
818 | frame->curlinepix++; | |
aae40fd2 AC |
819 | curline -= 3; |
820 | nextline -= 3; | |
1da177e4 LT |
821 | len--; |
822 | data++; | |
823 | frame->curpix++; | |
824 | } | |
aae40fd2 | 825 | frame->curline = curline; |
1da177e4 | 826 | |
aae40fd2 | 827 | if (frame->curpix >= datasize) { |
1da177e4 | 828 | /* Fix the top line */ |
aae40fd2 AC |
829 | framedata += linelength; |
830 | for (i = 0; i < linelength; i++) { | |
1da177e4 | 831 | framedata--; |
aae40fd2 | 832 | *framedata = *(framedata + linelength); |
1da177e4 LT |
833 | } |
834 | /* Fix the left side (green is already present) */ | |
aae40fd2 AC |
835 | for (i = 0; i < se401->cheight; i++) { |
836 | *framedata = *(framedata + 3); | |
837 | *(framedata + 1) = *(framedata + 4); | |
838 | *(framedata + 2) = *(framedata + 5); | |
839 | framedata += linelength; | |
1da177e4 | 840 | } |
aae40fd2 AC |
841 | frame->curpix = 0; |
842 | frame->grabstate = FRAME_DONE; | |
1da177e4 LT |
843 | se401->framecount++; |
844 | se401->readcount++; | |
aae40fd2 AC |
845 | if (se401->frame[(se401->curframe + 1) & |
846 | (SE401_NUMFRAMES - 1)].grabstate == FRAME_READY) { | |
847 | se401->curframe = (se401->curframe+1) & | |
848 | (SE401_NUMFRAMES-1); | |
1da177e4 LT |
849 | } |
850 | } | |
851 | } | |
852 | ||
853 | static int se401_newframe(struct usb_se401 *se401, int framenr) | |
854 | { | |
855 | DECLARE_WAITQUEUE(wait, current); | |
aae40fd2 | 856 | int errors = 0; |
1da177e4 LT |
857 | |
858 | while (se401->streaming && | |
aae40fd2 AC |
859 | (se401->frame[framenr].grabstate == FRAME_READY || |
860 | se401->frame[framenr].grabstate == FRAME_GRABBING)) { | |
861 | if (!se401->frame[framenr].curpix) | |
1da177e4 | 862 | errors++; |
aae40fd2 | 863 | |
1da177e4 | 864 | wait_interruptible( |
aae40fd2 AC |
865 | se401->scratch[se401->scratch_use].state != BUFFER_READY, |
866 | &se401->wq, &wait); | |
1da177e4 | 867 | if (se401->nullpackets > SE401_MAX_NULLPACKETS) { |
aae40fd2 | 868 | se401->nullpackets = 0; |
a482f327 | 869 | dev_info(&se401->dev->dev, |
aae40fd2 | 870 | "too many null length packets, restarting capture\n"); |
1da177e4 | 871 | se401_stop_stream(se401); |
d56410e0 | 872 | se401_start_stream(se401); |
1da177e4 | 873 | } else { |
aae40fd2 AC |
874 | if (se401->scratch[se401->scratch_use].state != |
875 | BUFFER_READY) { | |
876 | se401->frame[framenr].grabstate = FRAME_ERROR; | |
1da177e4 LT |
877 | return -EIO; |
878 | } | |
aae40fd2 AC |
879 | se401->scratch[se401->scratch_use].state = BUFFER_BUSY; |
880 | if (se401->format == FMT_JANGGU) | |
881 | decode_JangGu(se401, | |
882 | &se401->scratch[se401->scratch_use]); | |
883 | else | |
884 | decode_bayer(se401, | |
885 | &se401->scratch[se401->scratch_use]); | |
886 | ||
887 | se401->scratch[se401->scratch_use].state = | |
888 | BUFFER_UNUSED; | |
1da177e4 | 889 | se401->scratch_use++; |
aae40fd2 AC |
890 | if (se401->scratch_use >= SE401_NUMSCRATCH) |
891 | se401->scratch_use = 0; | |
1da177e4 | 892 | if (errors > SE401_MAX_ERRORS) { |
aae40fd2 | 893 | errors = 0; |
a482f327 | 894 | dev_info(&se401->dev->dev, |
aae40fd2 | 895 | "too many errors, restarting capture\n"); |
1da177e4 LT |
896 | se401_stop_stream(se401); |
897 | se401_start_stream(se401); | |
898 | } | |
899 | } | |
900 | } | |
901 | ||
aae40fd2 | 902 | if (se401->frame[framenr].grabstate == FRAME_DONE) |
1da177e4 | 903 | if (se401->enhance) |
aae40fd2 AC |
904 | enhance_picture(se401->frame[framenr].data, |
905 | se401->cheight * se401->cwidth * 3); | |
1da177e4 LT |
906 | return 0; |
907 | } | |
908 | ||
aae40fd2 | 909 | static void usb_se401_remove_disconnected(struct usb_se401 *se401) |
1da177e4 LT |
910 | { |
911 | int i; | |
912 | ||
d56410e0 | 913 | se401->dev = NULL; |
1da177e4 | 914 | |
aae40fd2 | 915 | for (i = 0; i < SE401_NUMSBUF; i++) |
1bc3c9e1 JJ |
916 | if (se401->urb[i]) { |
917 | usb_kill_urb(se401->urb[i]); | |
918 | usb_free_urb(se401->urb[i]); | |
919 | se401->urb[i] = NULL; | |
920 | kfree(se401->sbuf[i].data); | |
921 | } | |
aae40fd2 AC |
922 | |
923 | for (i = 0; i < SE401_NUMSCRATCH; i++) | |
1da177e4 | 924 | kfree(se401->scratch[i].data); |
aae40fd2 | 925 | |
1da177e4 LT |
926 | if (se401->inturb) { |
927 | usb_kill_urb(se401->inturb); | |
928 | usb_free_urb(se401->inturb); | |
929 | } | |
a482f327 | 930 | dev_info(&se401->dev->dev, "%s disconnected", se401->camera_name); |
1da177e4 | 931 | |
d56410e0 | 932 | /* Free the memory */ |
1da177e4 LT |
933 | kfree(se401->width); |
934 | kfree(se401->height); | |
935 | kfree(se401); | |
936 | } | |
937 | ||
938 | ||
939 | ||
940 | /**************************************************************************** | |
941 | * | |
942 | * Video4Linux | |
943 | * | |
944 | ***************************************************************************/ | |
945 | ||
946 | ||
bec43661 | 947 | static int se401_open(struct file *file) |
1da177e4 LT |
948 | { |
949 | struct video_device *dev = video_devdata(file); | |
950 | struct usb_se401 *se401 = (struct usb_se401 *)dev; | |
951 | int err = 0; | |
952 | ||
0edf2e5e | 953 | mutex_lock(&se401->lock); |
d56dc612 | 954 | if (se401->user) { |
0edf2e5e | 955 | mutex_unlock(&se401->lock); |
1da177e4 | 956 | return -EBUSY; |
d56dc612 | 957 | } |
1da177e4 LT |
958 | se401->fbuf = rvmalloc(se401->maxframesize * SE401_NUMFRAMES); |
959 | if (se401->fbuf) | |
960 | file->private_data = dev; | |
d56410e0 | 961 | else |
1da177e4 LT |
962 | err = -ENOMEM; |
963 | se401->user = !err; | |
0edf2e5e | 964 | mutex_unlock(&se401->lock); |
1da177e4 LT |
965 | |
966 | return err; | |
967 | } | |
968 | ||
bec43661 | 969 | static int se401_close(struct file *file) |
1da177e4 LT |
970 | { |
971 | struct video_device *dev = file->private_data; | |
d56410e0 | 972 | struct usb_se401 *se401 = (struct usb_se401 *)dev; |
1da177e4 LT |
973 | int i; |
974 | ||
975 | rvfree(se401->fbuf, se401->maxframesize * SE401_NUMFRAMES); | |
d56410e0 | 976 | if (se401->removed) { |
a482f327 | 977 | dev_info(&se401->dev->dev, "device unregistered\n"); |
1da177e4 | 978 | usb_se401_remove_disconnected(se401); |
1da177e4 | 979 | } else { |
aae40fd2 AC |
980 | for (i = 0; i < SE401_NUMFRAMES; i++) |
981 | se401->frame[i].grabstate = FRAME_UNUSED; | |
1da177e4 LT |
982 | if (se401->streaming) |
983 | se401_stop_stream(se401); | |
aae40fd2 | 984 | se401->user = 0; |
1da177e4 LT |
985 | } |
986 | file->private_data = NULL; | |
987 | return 0; | |
988 | } | |
989 | ||
069b7479 | 990 | static long se401_do_ioctl(struct file *file, unsigned int cmd, void *arg) |
1da177e4 LT |
991 | { |
992 | struct video_device *vdev = file->private_data; | |
d56410e0 | 993 | struct usb_se401 *se401 = (struct usb_se401 *)vdev; |
1da177e4 | 994 | |
d56410e0 MCC |
995 | if (!se401->dev) |
996 | return -EIO; | |
1da177e4 | 997 | |
d56410e0 | 998 | switch (cmd) { |
1da177e4 LT |
999 | case VIDIOCGCAP: |
1000 | { | |
1001 | struct video_capability *b = arg; | |
1002 | strcpy(b->name, se401->camera_name); | |
1003 | b->type = VID_TYPE_CAPTURE; | |
1004 | b->channels = 1; | |
1005 | b->audios = 0; | |
1006 | b->maxwidth = se401->width[se401->sizes-1]; | |
1007 | b->maxheight = se401->height[se401->sizes-1]; | |
1008 | b->minwidth = se401->width[0]; | |
1009 | b->minheight = se401->height[0]; | |
1010 | return 0; | |
1011 | } | |
1012 | case VIDIOCGCHAN: | |
1013 | { | |
1014 | struct video_channel *v = arg; | |
1015 | ||
1016 | if (v->channel != 0) | |
1017 | return -EINVAL; | |
1018 | v->flags = 0; | |
1019 | v->tuners = 0; | |
1020 | v->type = VIDEO_TYPE_CAMERA; | |
1021 | strcpy(v->name, "Camera"); | |
1022 | return 0; | |
1023 | } | |
1024 | case VIDIOCSCHAN: | |
1025 | { | |
1026 | struct video_channel *v = arg; | |
1027 | ||
1028 | if (v->channel != 0) | |
1029 | return -EINVAL; | |
1030 | return 0; | |
1031 | } | |
d56410e0 MCC |
1032 | case VIDIOCGPICT: |
1033 | { | |
1da177e4 LT |
1034 | struct video_picture *p = arg; |
1035 | ||
1036 | se401_get_pict(se401, p); | |
1037 | return 0; | |
1038 | } | |
1039 | case VIDIOCSPICT: | |
1040 | { | |
1041 | struct video_picture *p = arg; | |
1042 | ||
1043 | if (se401_set_pict(se401, p)) | |
1044 | return -EINVAL; | |
1045 | return 0; | |
1046 | } | |
1047 | case VIDIOCSWIN: | |
1048 | { | |
1049 | struct video_window *vw = arg; | |
1050 | ||
1051 | if (vw->flags) | |
1052 | return -EINVAL; | |
1053 | if (vw->clipcount) | |
1054 | return -EINVAL; | |
1055 | if (se401_set_size(se401, vw->width, vw->height)) | |
1056 | return -EINVAL; | |
1057 | return 0; | |
d56410e0 | 1058 | } |
1da177e4 LT |
1059 | case VIDIOCGWIN: |
1060 | { | |
1061 | struct video_window *vw = arg; | |
1062 | ||
1063 | vw->x = 0; /* FIXME */ | |
1064 | vw->y = 0; | |
1065 | vw->chromakey = 0; | |
1066 | vw->flags = 0; | |
1067 | vw->clipcount = 0; | |
1068 | vw->width = se401->cwidth; | |
1069 | vw->height = se401->cheight; | |
1070 | return 0; | |
1071 | } | |
1072 | case VIDIOCGMBUF: | |
1073 | { | |
1074 | struct video_mbuf *vm = arg; | |
1075 | int i; | |
1076 | ||
1077 | memset(vm, 0, sizeof(*vm)); | |
1078 | vm->size = SE401_NUMFRAMES * se401->maxframesize; | |
1079 | vm->frames = SE401_NUMFRAMES; | |
aae40fd2 | 1080 | for (i = 0; i < SE401_NUMFRAMES; i++) |
1da177e4 LT |
1081 | vm->offsets[i] = se401->maxframesize * i; |
1082 | return 0; | |
1083 | } | |
1084 | case VIDIOCMCAPTURE: | |
1085 | { | |
1086 | struct video_mmap *vm = arg; | |
1087 | ||
1088 | if (vm->format != VIDEO_PALETTE_RGB24) | |
1089 | return -EINVAL; | |
1090 | if (vm->frame >= SE401_NUMFRAMES) | |
1091 | return -EINVAL; | |
1092 | if (se401->frame[vm->frame].grabstate != FRAME_UNUSED) | |
1093 | return -EBUSY; | |
1094 | ||
1095 | /* Is this according to the v4l spec??? */ | |
1096 | if (se401_set_size(se401, vm->width, vm->height)) | |
1097 | return -EINVAL; | |
aae40fd2 | 1098 | se401->frame[vm->frame].grabstate = FRAME_READY; |
1da177e4 LT |
1099 | |
1100 | if (!se401->streaming) | |
1101 | se401_start_stream(se401); | |
1102 | ||
1103 | /* Set the picture properties */ | |
aae40fd2 | 1104 | if (se401->framecount == 0) |
1da177e4 LT |
1105 | se401_send_pict(se401); |
1106 | /* Calibrate the reset level after a few frames. */ | |
aae40fd2 | 1107 | if (se401->framecount % 20 == 1) |
1da177e4 LT |
1108 | se401_auto_resetlevel(se401); |
1109 | ||
1110 | return 0; | |
1111 | } | |
1112 | case VIDIOCSYNC: | |
1113 | { | |
1114 | int *frame = arg; | |
aae40fd2 | 1115 | int ret = 0; |
1da177e4 | 1116 | |
aae40fd2 | 1117 | if (*frame < 0 || *frame >= SE401_NUMFRAMES) |
1da177e4 LT |
1118 | return -EINVAL; |
1119 | ||
aae40fd2 AC |
1120 | ret = se401_newframe(se401, *frame); |
1121 | se401->frame[*frame].grabstate = FRAME_UNUSED; | |
1da177e4 LT |
1122 | return ret; |
1123 | } | |
1124 | case VIDIOCGFBUF: | |
1125 | { | |
1126 | struct video_buffer *vb = arg; | |
1127 | ||
1128 | memset(vb, 0, sizeof(*vb)); | |
1129 | return 0; | |
1130 | } | |
1131 | case VIDIOCKEY: | |
1132 | return 0; | |
1133 | case VIDIOCCAPTURE: | |
1134 | return -EINVAL; | |
1135 | case VIDIOCSFBUF: | |
1136 | return -EINVAL; | |
1137 | case VIDIOCGTUNER: | |
1138 | case VIDIOCSTUNER: | |
1139 | return -EINVAL; | |
1140 | case VIDIOCGFREQ: | |
1141 | case VIDIOCSFREQ: | |
1142 | return -EINVAL; | |
1143 | case VIDIOCGAUDIO: | |
1144 | case VIDIOCSAUDIO: | |
1145 | return -EINVAL; | |
d56410e0 MCC |
1146 | default: |
1147 | return -ENOIOCTLCMD; | |
1148 | } /* end switch */ | |
1da177e4 | 1149 | |
d56410e0 | 1150 | return 0; |
1da177e4 LT |
1151 | } |
1152 | ||
069b7479 | 1153 | static long se401_ioctl(struct file *file, |
1da177e4 LT |
1154 | unsigned int cmd, unsigned long arg) |
1155 | { | |
f473bf76 | 1156 | return video_usercopy(file, cmd, arg, se401_do_ioctl); |
1da177e4 LT |
1157 | } |
1158 | ||
1159 | static ssize_t se401_read(struct file *file, char __user *buf, | |
1160 | size_t count, loff_t *ppos) | |
1161 | { | |
aae40fd2 | 1162 | int realcount = count, ret = 0; |
1da177e4 LT |
1163 | struct video_device *dev = file->private_data; |
1164 | struct usb_se401 *se401 = (struct usb_se401 *)dev; | |
1165 | ||
1166 | ||
aae40fd2 | 1167 | if (se401->dev == NULL) |
1da177e4 LT |
1168 | return -EIO; |
1169 | if (realcount > se401->cwidth*se401->cheight*3) | |
aae40fd2 | 1170 | realcount = se401->cwidth*se401->cheight*3; |
1da177e4 LT |
1171 | |
1172 | /* Shouldn't happen: */ | |
aae40fd2 | 1173 | if (se401->frame[0].grabstate == FRAME_GRABBING) |
1da177e4 | 1174 | return -EBUSY; |
aae40fd2 AC |
1175 | se401->frame[0].grabstate = FRAME_READY; |
1176 | se401->frame[1].grabstate = FRAME_UNUSED; | |
1177 | se401->curframe = 0; | |
1da177e4 LT |
1178 | |
1179 | if (!se401->streaming) | |
1180 | se401_start_stream(se401); | |
1181 | ||
1182 | /* Set the picture properties */ | |
aae40fd2 | 1183 | if (se401->framecount == 0) |
1da177e4 LT |
1184 | se401_send_pict(se401); |
1185 | /* Calibrate the reset level after a few frames. */ | |
aae40fd2 | 1186 | if (se401->framecount%20 == 1) |
1da177e4 LT |
1187 | se401_auto_resetlevel(se401); |
1188 | ||
aae40fd2 | 1189 | ret = se401_newframe(se401, 0); |
1da177e4 | 1190 | |
aae40fd2 | 1191 | se401->frame[0].grabstate = FRAME_UNUSED; |
1da177e4 | 1192 | if (ret) |
d56410e0 | 1193 | return ret; |
1da177e4 LT |
1194 | if (copy_to_user(buf, se401->frame[0].data, realcount)) |
1195 | return -EFAULT; | |
1196 | ||
1197 | return realcount; | |
1198 | } | |
1199 | ||
1200 | static int se401_mmap(struct file *file, struct vm_area_struct *vma) | |
1201 | { | |
1202 | struct video_device *dev = file->private_data; | |
1203 | struct usb_se401 *se401 = (struct usb_se401 *)dev; | |
1204 | unsigned long start = vma->vm_start; | |
1205 | unsigned long size = vma->vm_end-vma->vm_start; | |
1206 | unsigned long page, pos; | |
1207 | ||
4186ecf8 | 1208 | mutex_lock(&se401->lock); |
1da177e4 | 1209 | |
aae40fd2 | 1210 | if (se401->dev == NULL) { |
4186ecf8 | 1211 | mutex_unlock(&se401->lock); |
1da177e4 LT |
1212 | return -EIO; |
1213 | } | |
aae40fd2 AC |
1214 | if (size > (((SE401_NUMFRAMES * se401->maxframesize) + PAGE_SIZE - 1) |
1215 | & ~(PAGE_SIZE - 1))) { | |
4186ecf8 | 1216 | mutex_unlock(&se401->lock); |
1da177e4 LT |
1217 | return -EINVAL; |
1218 | } | |
1219 | pos = (unsigned long)se401->fbuf; | |
1220 | while (size > 0) { | |
1221 | page = vmalloc_to_pfn((void *)pos); | |
1222 | if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) { | |
4186ecf8 | 1223 | mutex_unlock(&se401->lock); |
1da177e4 LT |
1224 | return -EAGAIN; |
1225 | } | |
aae40fd2 AC |
1226 | start += PAGE_SIZE; |
1227 | pos += PAGE_SIZE; | |
1da177e4 | 1228 | if (size > PAGE_SIZE) |
aae40fd2 | 1229 | size -= PAGE_SIZE; |
1da177e4 LT |
1230 | else |
1231 | size = 0; | |
1232 | } | |
4186ecf8 | 1233 | mutex_unlock(&se401->lock); |
1da177e4 | 1234 | |
d56410e0 | 1235 | return 0; |
1da177e4 LT |
1236 | } |
1237 | ||
bec43661 | 1238 | static const struct v4l2_file_operations se401_fops = { |
aae40fd2 | 1239 | .owner = THIS_MODULE, |
d56410e0 MCC |
1240 | .open = se401_open, |
1241 | .release = se401_close, | |
1242 | .read = se401_read, | |
1243 | .mmap = se401_mmap, | |
1da177e4 | 1244 | .ioctl = se401_ioctl, |
1da177e4 LT |
1245 | }; |
1246 | static struct video_device se401_template = { | |
d56410e0 | 1247 | .name = "se401 USB camera", |
1da177e4 | 1248 | .fops = &se401_fops, |
aa5e90af | 1249 | .release = video_device_release_empty, |
1da177e4 LT |
1250 | }; |
1251 | ||
1252 | ||
1253 | ||
1254 | /***************************/ | |
1255 | static int se401_init(struct usb_se401 *se401, int button) | |
1256 | { | |
aae40fd2 | 1257 | int i = 0, rc; |
d56410e0 | 1258 | unsigned char cp[0x40]; |
1da177e4 | 1259 | char temp[200]; |
6f4d7239 | 1260 | int slen; |
1da177e4 LT |
1261 | |
1262 | /* led on */ | |
d56410e0 | 1263 | se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 1, NULL, 0); |
1da177e4 LT |
1264 | |
1265 | /* get camera descriptor */ | |
aae40fd2 AC |
1266 | rc = se401_sndctrl(0, se401, SE401_REQ_GET_CAMERA_DESCRIPTOR, 0, |
1267 | cp, sizeof(cp)); | |
6f4d7239 | 1268 | if (cp[1] != 0x41) { |
1da177e4 LT |
1269 | err("Wrong descriptor type"); |
1270 | return 1; | |
1271 | } | |
6f4d7239 | 1272 | slen = snprintf(temp, 200, "ExtraFeatures: %d", cp[3]); |
1da177e4 | 1273 | |
aae40fd2 AC |
1274 | se401->sizes = cp[4] + cp[5] * 256; |
1275 | se401->width = kmalloc(se401->sizes*sizeof(int), GFP_KERNEL); | |
1da177e4 LT |
1276 | if (!se401->width) |
1277 | return 1; | |
aae40fd2 | 1278 | se401->height = kmalloc(se401->sizes*sizeof(int), GFP_KERNEL); |
1da177e4 LT |
1279 | if (!se401->height) { |
1280 | kfree(se401->width); | |
1281 | return 1; | |
1282 | } | |
aae40fd2 AC |
1283 | for (i = 0; i < se401->sizes; i++) { |
1284 | se401->width[i] = cp[6 + i * 4 + 0] + cp[6 + i*4 + 1] * 256; | |
1285 | se401->height[i] = cp[6 + i * 4 + 2] + cp[6 + i * 4 + 3] * 256; | |
1da177e4 | 1286 | } |
aae40fd2 AC |
1287 | slen += snprintf(temp + slen, 200 - slen, " Sizes:"); |
1288 | for (i = 0; i < se401->sizes; i++) { | |
1289 | slen += snprintf(temp + slen, 200 - slen, | |
6f4d7239 | 1290 | " %dx%d", se401->width[i], se401->height[i]); |
1da177e4 | 1291 | } |
a482f327 | 1292 | dev_info(&se401->dev->dev, "%s\n", temp); |
aae40fd2 AC |
1293 | se401->maxframesize = se401->width[se401->sizes-1] * |
1294 | se401->height[se401->sizes - 1] * 3; | |
1da177e4 | 1295 | |
aae40fd2 AC |
1296 | rc = se401_sndctrl(0, se401, SE401_REQ_GET_WIDTH, 0, cp, sizeof(cp)); |
1297 | se401->cwidth = cp[0]+cp[1]*256; | |
1298 | rc = se401_sndctrl(0, se401, SE401_REQ_GET_HEIGHT, 0, cp, sizeof(cp)); | |
1299 | se401->cheight = cp[0]+cp[1]*256; | |
1da177e4 | 1300 | |
33b4af91 | 1301 | if (!(cp[2] & SE401_FORMAT_BAYER)) { |
1da177e4 LT |
1302 | err("Bayer format not supported!"); |
1303 | return 1; | |
1304 | } | |
1305 | /* set output mode (BAYER) */ | |
aae40fd2 AC |
1306 | se401_sndctrl(1, se401, SE401_REQ_SET_OUTPUT_MODE, |
1307 | SE401_FORMAT_BAYER, NULL, 0); | |
1da177e4 | 1308 | |
aae40fd2 AC |
1309 | rc = se401_sndctrl(0, se401, SE401_REQ_GET_BRT, 0, cp, sizeof(cp)); |
1310 | se401->brightness = cp[0]+cp[1]*256; | |
1da177e4 | 1311 | /* some default values */ |
aae40fd2 AC |
1312 | se401->resetlevel = 0x2d; |
1313 | se401->rgain = 0x20; | |
1314 | se401->ggain = 0x20; | |
1315 | se401->bgain = 0x20; | |
1da177e4 | 1316 | se401_set_exposure(se401, 20000); |
aae40fd2 AC |
1317 | se401->palette = VIDEO_PALETTE_RGB24; |
1318 | se401->enhance = 1; | |
1319 | se401->dropped = 0; | |
1320 | se401->error = 0; | |
1321 | se401->framecount = 0; | |
1322 | se401->readcount = 0; | |
1da177e4 LT |
1323 | |
1324 | /* Start interrupt transfers for snapshot button */ | |
1325 | if (button) { | |
aae40fd2 | 1326 | se401->inturb = usb_alloc_urb(0, GFP_KERNEL); |
1da177e4 | 1327 | if (!se401->inturb) { |
a482f327 GKH |
1328 | dev_info(&se401->dev->dev, |
1329 | "Allocation of inturb failed\n"); | |
1da177e4 LT |
1330 | return 1; |
1331 | } | |
1332 | usb_fill_int_urb(se401->inturb, se401->dev, | |
1333 | usb_rcvintpipe(se401->dev, SE401_BUTTON_ENDPOINT), | |
1334 | &se401->button, sizeof(se401->button), | |
1335 | se401_button_irq, | |
1336 | se401, | |
1337 | 8 | |
1338 | ); | |
1339 | if (usb_submit_urb(se401->inturb, GFP_KERNEL)) { | |
a482f327 | 1340 | dev_info(&se401->dev->dev, "int urb burned down\n"); |
1da177e4 LT |
1341 | return 1; |
1342 | } | |
1343 | } else | |
aae40fd2 | 1344 | se401->inturb = NULL; |
1da177e4 | 1345 | |
d56410e0 MCC |
1346 | /* Flash the led */ |
1347 | se401_sndctrl(1, se401, SE401_REQ_CAMERA_POWER, 1, NULL, 0); | |
1348 | se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 1, NULL, 0); | |
1349 | se401_sndctrl(1, se401, SE401_REQ_CAMERA_POWER, 0, NULL, 0); | |
1da177e4 LT |
1350 | se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 0, NULL, 0); |
1351 | ||
d56410e0 | 1352 | return 0; |
1da177e4 LT |
1353 | } |
1354 | ||
1355 | static int se401_probe(struct usb_interface *intf, | |
1356 | const struct usb_device_id *id) | |
1357 | { | |
1358 | struct usb_device *dev = interface_to_usbdev(intf); | |
d56410e0 MCC |
1359 | struct usb_interface_descriptor *interface; |
1360 | struct usb_se401 *se401; | |
aae40fd2 AC |
1361 | char *camera_name = NULL; |
1362 | int button = 1; | |
1da177e4 | 1363 | |
d56410e0 MCC |
1364 | /* We don't handle multi-config cameras */ |
1365 | if (dev->descriptor.bNumConfigurations != 1) | |
1366 | return -ENODEV; | |
1da177e4 | 1367 | |
d56410e0 | 1368 | interface = &intf->cur_altsetting->desc; |
1da177e4 | 1369 | |
d56410e0 | 1370 | /* Is it an se401? */ |
aae40fd2 AC |
1371 | if (le16_to_cpu(dev->descriptor.idVendor) == 0x03e8 && |
1372 | le16_to_cpu(dev->descriptor.idProduct) == 0x0004) { | |
1373 | camera_name = "Endpoints/Aox SE401"; | |
1374 | } else if (le16_to_cpu(dev->descriptor.idVendor) == 0x0471 && | |
1375 | le16_to_cpu(dev->descriptor.idProduct) == 0x030b) { | |
1376 | camera_name = "Philips PCVC665K"; | |
1377 | } else if (le16_to_cpu(dev->descriptor.idVendor) == 0x047d && | |
1378 | le16_to_cpu(dev->descriptor.idProduct) == 0x5001) { | |
1379 | camera_name = "Kensington VideoCAM 67014"; | |
1380 | } else if (le16_to_cpu(dev->descriptor.idVendor) == 0x047d && | |
1381 | le16_to_cpu(dev->descriptor.idProduct) == 0x5002) { | |
1382 | camera_name = "Kensington VideoCAM 6701(5/7)"; | |
1383 | } else if (le16_to_cpu(dev->descriptor.idVendor) == 0x047d && | |
1384 | le16_to_cpu(dev->descriptor.idProduct) == 0x5003) { | |
1385 | camera_name = "Kensington VideoCAM 67016"; | |
1386 | button = 0; | |
1da177e4 LT |
1387 | } else |
1388 | return -ENODEV; | |
1389 | ||
d56410e0 MCC |
1390 | /* Checking vendor/product should be enough, but what the hell */ |
1391 | if (interface->bInterfaceClass != 0x00) | |
1da177e4 | 1392 | return -ENODEV; |
d56410e0 | 1393 | if (interface->bInterfaceSubClass != 0x00) |
1da177e4 LT |
1394 | return -ENODEV; |
1395 | ||
d56410e0 | 1396 | /* We found one */ |
a482f327 | 1397 | dev_info(&intf->dev, "SE401 camera found: %s\n", camera_name); |
1da177e4 | 1398 | |
aae40fd2 AC |
1399 | se401 = kzalloc(sizeof(*se401), GFP_KERNEL); |
1400 | if (se401 == NULL) { | |
d56410e0 | 1401 | err("couldn't kmalloc se401 struct"); |
1da177e4 | 1402 | return -ENOMEM; |
d56410e0 | 1403 | } |
1da177e4 | 1404 | |
d56410e0 MCC |
1405 | se401->dev = dev; |
1406 | se401->iface = interface->bInterfaceNumber; | |
1407 | se401->camera_name = camera_name; | |
1da177e4 | 1408 | |
a482f327 GKH |
1409 | dev_info(&intf->dev, "firmware version: %02x\n", |
1410 | le16_to_cpu(dev->descriptor.bcdDevice) & 255); | |
1da177e4 | 1411 | |
d56410e0 | 1412 | if (se401_init(se401, button)) { |
1da177e4 LT |
1413 | kfree(se401); |
1414 | return -EIO; | |
1415 | } | |
1416 | ||
1417 | memcpy(&se401->vdev, &se401_template, sizeof(se401_template)); | |
aae40fd2 AC |
1418 | memcpy(se401->vdev.name, se401->camera_name, |
1419 | strlen(se401->camera_name)); | |
1da177e4 | 1420 | init_waitqueue_head(&se401->wq); |
4186ecf8 | 1421 | mutex_init(&se401->lock); |
1da177e4 LT |
1422 | wmb(); |
1423 | ||
aae40fd2 AC |
1424 | if (video_register_device(&se401->vdev, |
1425 | VFL_TYPE_GRABBER, video_nr) < 0) { | |
1da177e4 LT |
1426 | kfree(se401); |
1427 | err("video_register_device failed"); | |
1428 | return -EIO; | |
1429 | } | |
38c7c036 LP |
1430 | dev_info(&intf->dev, "registered new video device: %s\n", |
1431 | video_device_node_name(&se401->vdev)); | |
1da177e4 | 1432 | |
aae40fd2 | 1433 | usb_set_intfdata(intf, se401); |
d56410e0 | 1434 | return 0; |
1da177e4 LT |
1435 | } |
1436 | ||
1437 | static void se401_disconnect(struct usb_interface *intf) | |
1438 | { | |
aae40fd2 | 1439 | struct usb_se401 *se401 = usb_get_intfdata(intf); |
1da177e4 | 1440 | |
aae40fd2 | 1441 | usb_set_intfdata(intf, NULL); |
1da177e4 LT |
1442 | if (se401) { |
1443 | video_unregister_device(&se401->vdev); | |
aae40fd2 | 1444 | if (!se401->user) |
1da177e4 | 1445 | usb_se401_remove_disconnected(se401); |
aae40fd2 | 1446 | else { |
1da177e4 LT |
1447 | se401->frame[0].grabstate = FRAME_ERROR; |
1448 | se401->frame[0].grabstate = FRAME_ERROR; | |
1449 | ||
1450 | se401->streaming = 0; | |
1451 | ||
1452 | wake_up_interruptible(&se401->wq); | |
1453 | se401->removed = 1; | |
1454 | } | |
1455 | } | |
1456 | } | |
1457 | ||
1458 | static struct usb_driver se401_driver = { | |
aae40fd2 AC |
1459 | .name = "se401", |
1460 | .id_table = device_table, | |
1461 | .probe = se401_probe, | |
1462 | .disconnect = se401_disconnect, | |
1da177e4 LT |
1463 | }; |
1464 | ||
1465 | ||
1466 | ||
1467 | /**************************************************************************** | |
1468 | * | |
1469 | * Module routines | |
1470 | * | |
1471 | ***************************************************************************/ | |
1472 | ||
1473 | static int __init usb_se401_init(void) | |
1474 | { | |
aae40fd2 AC |
1475 | printk(KERN_INFO "SE401 usb camera driver version %s registering\n", |
1476 | version); | |
1da177e4 | 1477 | if (flickerless) |
aae40fd2 | 1478 | if (flickerless != 50 && flickerless != 60) { |
a482f327 | 1479 | printk(KERN_ERR "Invallid flickerless value, use 0, 50 or 60.\n"); |
1da177e4 LT |
1480 | return -1; |
1481 | } | |
1482 | return usb_register(&se401_driver); | |
1483 | } | |
1484 | ||
1485 | static void __exit usb_se401_exit(void) | |
1486 | { | |
1487 | usb_deregister(&se401_driver); | |
a482f327 | 1488 | printk(KERN_INFO "SE401 driver deregistered\frame"); |
1da177e4 LT |
1489 | } |
1490 | ||
1491 | module_init(usb_se401_init); | |
1492 | module_exit(usb_se401_exit); |