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> | |
405f5571 | 34 | #include <linux/smp_lock.h> |
1da177e4 LT |
35 | #include <linux/pagemap.h> |
36 | #include <linux/usb.h> | |
37 | #include "se401.h" | |
38 | ||
ff699e6b | 39 | static int flickerless; |
1da177e4 LT |
40 | static int video_nr = -1; |
41 | ||
aae40fd2 | 42 | static struct usb_device_id device_table[] = { |
1da177e4 LT |
43 | { USB_DEVICE(0x03e8, 0x0004) },/* Endpoints/Aox SE401 */ |
44 | { USB_DEVICE(0x0471, 0x030b) },/* Philips PCVC665K */ | |
45 | { USB_DEVICE(0x047d, 0x5001) },/* Kensington 67014 */ | |
46 | { USB_DEVICE(0x047d, 0x5002) },/* Kensington 6701(5/7) */ | |
47 | { USB_DEVICE(0x047d, 0x5003) },/* Kensington 67016 */ | |
48 | { } | |
49 | }; | |
50 | ||
51 | MODULE_DEVICE_TABLE(usb, device_table); | |
52 | ||
53 | MODULE_AUTHOR("Jeroen Vreeken <pe1rxq@amsat.org>"); | |
54 | MODULE_DESCRIPTION("SE401 USB Camera Driver"); | |
55 | MODULE_LICENSE("GPL"); | |
56 | module_param(flickerless, int, 0); | |
aae40fd2 AC |
57 | MODULE_PARM_DESC(flickerless, |
58 | "Net frequency to adjust exposure time to (0/50/60)"); | |
1da177e4 LT |
59 | module_param(video_nr, int, 0); |
60 | ||
61 | static struct usb_driver se401_driver; | |
62 | ||
63 | ||
64 | /********************************************************************** | |
65 | * | |
66 | * Memory management | |
67 | * | |
68 | **********************************************************************/ | |
69 | static void *rvmalloc(unsigned long size) | |
70 | { | |
71 | void *mem; | |
72 | unsigned long adr; | |
73 | ||
74 | size = PAGE_ALIGN(size); | |
75 | mem = vmalloc_32(size); | |
76 | if (!mem) | |
77 | return NULL; | |
78 | ||
79 | memset(mem, 0, size); /* Clear the ram out, no junk to the user */ | |
80 | adr = (unsigned long) mem; | |
81 | while (size > 0) { | |
82 | SetPageReserved(vmalloc_to_page((void *)adr)); | |
aae40fd2 AC |
83 | adr += PAGE_SIZE; |
84 | size -= PAGE_SIZE; | |
1da177e4 LT |
85 | } |
86 | ||
87 | return mem; | |
88 | } | |
89 | ||
90 | static void rvfree(void *mem, unsigned long size) | |
91 | { | |
92 | unsigned long adr; | |
93 | ||
94 | if (!mem) | |
95 | return; | |
96 | ||
97 | adr = (unsigned long) mem; | |
98 | while ((long) size > 0) { | |
99 | ClearPageReserved(vmalloc_to_page((void *)adr)); | |
aae40fd2 AC |
100 | adr += PAGE_SIZE; |
101 | size -= PAGE_SIZE; | |
1da177e4 LT |
102 | } |
103 | vfree(mem); | |
104 | } | |
105 | ||
106 | ||
107 | ||
108 | /**************************************************************************** | |
109 | * | |
110 | * se401 register read/write functions | |
111 | * | |
112 | ***************************************************************************/ | |
113 | ||
114 | static int se401_sndctrl(int set, struct usb_se401 *se401, unsigned short req, | |
115 | unsigned short value, unsigned char *cp, int size) | |
116 | { | |
aae40fd2 | 117 | return usb_control_msg( |
d56410e0 MCC |
118 | se401->dev, |
119 | set ? usb_sndctrlpipe(se401->dev, 0) : usb_rcvctrlpipe(se401->dev, 0), | |
120 | req, | |
121 | (set ? USB_DIR_OUT : USB_DIR_IN) | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
122 | value, | |
123 | 0, | |
124 | cp, | |
125 | size, | |
126 | 1000 | |
127 | ); | |
1da177e4 LT |
128 | } |
129 | ||
130 | static int se401_set_feature(struct usb_se401 *se401, unsigned short selector, | |
131 | unsigned short param) | |
132 | { | |
133 | /* specs say that the selector (address) should go in the value field | |
134 | and the param in index, but in the logs of the windows driver they do | |
135 | this the other way around... | |
136 | */ | |
aae40fd2 | 137 | return usb_control_msg( |
1da177e4 LT |
138 | se401->dev, |
139 | usb_sndctrlpipe(se401->dev, 0), | |
140 | SE401_REQ_SET_EXT_FEATURE, | |
141 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
142 | param, | |
143 | selector, | |
d56410e0 MCC |
144 | NULL, |
145 | 0, | |
146 | 1000 | |
147 | ); | |
1da177e4 LT |
148 | } |
149 | ||
d56410e0 MCC |
150 | static unsigned short se401_get_feature(struct usb_se401 *se401, |
151 | unsigned short selector) | |
1da177e4 LT |
152 | { |
153 | /* For 'set' the selecetor should be in index, not sure if the spec is | |
154 | wrong here to.... | |
155 | */ | |
156 | unsigned char cp[2]; | |
aae40fd2 | 157 | usb_control_msg( |
d56410e0 MCC |
158 | se401->dev, |
159 | usb_rcvctrlpipe(se401->dev, 0), | |
160 | SE401_REQ_GET_EXT_FEATURE, | |
161 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
162 | 0, | |
163 | selector, | |
164 | cp, | |
165 | 2, | |
166 | 1000 | |
167 | ); | |
1da177e4 LT |
168 | return cp[0]+cp[1]*256; |
169 | } | |
170 | ||
171 | /**************************************************************************** | |
172 | * | |
173 | * Camera control | |
174 | * | |
175 | ***************************************************************************/ | |
176 | ||
177 | ||
178 | static int se401_send_pict(struct usb_se401 *se401) | |
179 | { | |
aae40fd2 AC |
180 | /* integration time low */ |
181 | se401_set_feature(se401, HV7131_REG_TITL, se401->expose_l); | |
182 | /* integration time mid */ | |
183 | se401_set_feature(se401, HV7131_REG_TITM, se401->expose_m); | |
184 | /* integration time mid */ | |
185 | se401_set_feature(se401, HV7131_REG_TITU, se401->expose_h); | |
186 | /* reset level value */ | |
187 | se401_set_feature(se401, HV7131_REG_ARLV, se401->resetlevel); | |
188 | /* red color gain */ | |
189 | se401_set_feature(se401, HV7131_REG_ARCG, se401->rgain); | |
190 | /* green color gain */ | |
191 | se401_set_feature(se401, HV7131_REG_AGCG, se401->ggain); | |
192 | /* blue color gain */ | |
193 | se401_set_feature(se401, HV7131_REG_ABCG, se401->bgain); | |
d56410e0 | 194 | |
1da177e4 LT |
195 | return 0; |
196 | } | |
197 | ||
198 | static void se401_set_exposure(struct usb_se401 *se401, int brightness) | |
199 | { | |
aae40fd2 AC |
200 | int integration = brightness << 5; |
201 | ||
202 | if (flickerless == 50) | |
203 | integration = integration-integration % 106667; | |
204 | if (flickerless == 60) | |
205 | integration = integration-integration % 88889; | |
206 | se401->brightness = integration >> 5; | |
207 | se401->expose_h = (integration >> 16) & 0xff; | |
208 | se401->expose_m = (integration >> 8) & 0xff; | |
209 | se401->expose_l = integration & 0xff; | |
1da177e4 LT |
210 | } |
211 | ||
212 | static int se401_get_pict(struct usb_se401 *se401, struct video_picture *p) | |
213 | { | |
aae40fd2 AC |
214 | p->brightness = se401->brightness; |
215 | if (se401->enhance) | |
216 | p->whiteness = 32768; | |
217 | else | |
218 | p->whiteness = 0; | |
219 | ||
220 | p->colour = 65535; | |
221 | p->contrast = 65535; | |
222 | p->hue = se401->rgain << 10; | |
223 | p->palette = se401->palette; | |
224 | p->depth = 3; /* rgb24 */ | |
1da177e4 LT |
225 | return 0; |
226 | } | |
227 | ||
228 | ||
229 | static int se401_set_pict(struct usb_se401 *se401, struct video_picture *p) | |
230 | { | |
231 | if (p->palette != VIDEO_PALETTE_RGB24) | |
232 | return 1; | |
aae40fd2 AC |
233 | se401->palette = p->palette; |
234 | if (p->hue != se401->hue) { | |
235 | se401->rgain = p->hue >> 10; | |
236 | se401->bgain = 0x40-(p->hue >> 10); | |
237 | se401->hue = p->hue; | |
1da177e4 | 238 | } |
aae40fd2 | 239 | if (p->brightness != se401->brightness) |
1da177e4 | 240 | se401_set_exposure(se401, p->brightness); |
aae40fd2 AC |
241 | |
242 | if (p->whiteness >= 32768) | |
243 | se401->enhance = 1; | |
244 | else | |
245 | se401->enhance = 0; | |
1da177e4 LT |
246 | se401_send_pict(se401); |
247 | se401_send_pict(se401); | |
248 | return 0; | |
249 | } | |
250 | ||
251 | /* | |
252 | Hyundai have some really nice docs about this and other sensor related | |
253 | stuff on their homepage: www.hei.co.kr | |
254 | */ | |
255 | static void se401_auto_resetlevel(struct usb_se401 *se401) | |
256 | { | |
257 | unsigned int ahrc, alrc; | |
aae40fd2 | 258 | int oldreset = se401->resetlevel; |
1da177e4 LT |
259 | |
260 | /* For some reason this normally read-only register doesn't get reset | |
261 | to zero after reading them just once... | |
262 | */ | |
d56410e0 | 263 | se401_get_feature(se401, HV7131_REG_HIREFNOH); |
1da177e4 LT |
264 | se401_get_feature(se401, HV7131_REG_HIREFNOL); |
265 | se401_get_feature(se401, HV7131_REG_LOREFNOH); | |
266 | se401_get_feature(se401, HV7131_REG_LOREFNOL); | |
aae40fd2 | 267 | ahrc = 256*se401_get_feature(se401, HV7131_REG_HIREFNOH) + |
1da177e4 | 268 | se401_get_feature(se401, HV7131_REG_HIREFNOL); |
aae40fd2 | 269 | alrc = 256*se401_get_feature(se401, HV7131_REG_LOREFNOH) + |
1da177e4 LT |
270 | se401_get_feature(se401, HV7131_REG_LOREFNOL); |
271 | ||
272 | /* Not an exact science, but it seems to work pretty well... */ | |
273 | if (alrc > 10) { | |
aae40fd2 | 274 | while (alrc >= 10 && se401->resetlevel < 63) { |
1da177e4 | 275 | se401->resetlevel++; |
aae40fd2 | 276 | alrc /= 2; |
1da177e4 LT |
277 | } |
278 | } else if (ahrc > 20) { | |
aae40fd2 | 279 | while (ahrc >= 20 && se401->resetlevel > 0) { |
1da177e4 | 280 | se401->resetlevel--; |
aae40fd2 | 281 | ahrc /= 2; |
1da177e4 LT |
282 | } |
283 | } | |
aae40fd2 | 284 | if (se401->resetlevel != oldreset) |
1da177e4 LT |
285 | se401_set_feature(se401, HV7131_REG_ARLV, se401->resetlevel); |
286 | ||
287 | return; | |
288 | } | |
289 | ||
290 | /* irq handler for snapshot button */ | |
7d12e780 | 291 | static void se401_button_irq(struct urb *urb) |
1da177e4 LT |
292 | { |
293 | struct usb_se401 *se401 = urb->context; | |
294 | int status; | |
d56410e0 | 295 | |
1da177e4 | 296 | if (!se401->dev) { |
a482f327 | 297 | dev_info(&urb->dev->dev, "device vapourished\n"); |
1da177e4 LT |
298 | return; |
299 | } | |
d56410e0 | 300 | |
1da177e4 LT |
301 | switch (urb->status) { |
302 | case 0: | |
303 | /* success */ | |
304 | break; | |
305 | case -ECONNRESET: | |
306 | case -ENOENT: | |
307 | case -ESHUTDOWN: | |
308 | /* this urb is terminated, clean up */ | |
aae40fd2 AC |
309 | dbg("%s - urb shutting down with status: %d", |
310 | __func__, urb->status); | |
1da177e4 LT |
311 | return; |
312 | default: | |
aae40fd2 AC |
313 | dbg("%s - nonzero urb status received: %d", |
314 | __func__, urb->status); | |
1da177e4 LT |
315 | goto exit; |
316 | } | |
317 | ||
aae40fd2 | 318 | if (urb->actual_length >= 2) |
1da177e4 | 319 | if (se401->button) |
aae40fd2 | 320 | se401->buttonpressed = 1; |
1da177e4 | 321 | exit: |
aae40fd2 | 322 | status = usb_submit_urb(urb, GFP_ATOMIC); |
1da177e4 | 323 | if (status) |
aae40fd2 | 324 | err("%s - usb_submit_urb failed with result %d", |
7e28adb2 | 325 | __func__, status); |
1da177e4 LT |
326 | } |
327 | ||
7d12e780 | 328 | static void se401_video_irq(struct urb *urb) |
1da177e4 LT |
329 | { |
330 | struct usb_se401 *se401 = urb->context; | |
331 | int length = urb->actual_length; | |
332 | ||
333 | /* ohoh... */ | |
334 | if (!se401->streaming) | |
335 | return; | |
336 | ||
337 | if (!se401->dev) { | |
a482f327 | 338 | dev_info(&urb->dev->dev, "device vapourished\n"); |
1da177e4 LT |
339 | return; |
340 | } | |
341 | ||
342 | /* 0 sized packets happen if we are to fast, but sometimes the camera | |
343 | keeps sending them forever... | |
344 | */ | |
345 | if (length && !urb->status) { | |
aae40fd2 AC |
346 | se401->nullpackets = 0; |
347 | switch (se401->scratch[se401->scratch_next].state) { | |
348 | case BUFFER_READY: | |
349 | case BUFFER_BUSY: | |
350 | se401->dropped++; | |
351 | break; | |
352 | case BUFFER_UNUSED: | |
353 | memcpy(se401->scratch[se401->scratch_next].data, | |
354 | (unsigned char *)urb->transfer_buffer, length); | |
355 | se401->scratch[se401->scratch_next].state | |
356 | = BUFFER_READY; | |
357 | se401->scratch[se401->scratch_next].offset | |
358 | = se401->bayeroffset; | |
359 | se401->scratch[se401->scratch_next].length = length; | |
360 | if (waitqueue_active(&se401->wq)) | |
361 | wake_up_interruptible(&se401->wq); | |
362 | se401->scratch_overflow = 0; | |
363 | se401->scratch_next++; | |
364 | if (se401->scratch_next >= SE401_NUMSCRATCH) | |
365 | se401->scratch_next = 0; | |
366 | break; | |
1da177e4 | 367 | } |
aae40fd2 AC |
368 | se401->bayeroffset += length; |
369 | if (se401->bayeroffset >= se401->cheight * se401->cwidth) | |
370 | se401->bayeroffset = 0; | |
1da177e4 LT |
371 | } else { |
372 | se401->nullpackets++; | |
aae40fd2 AC |
373 | if (se401->nullpackets > SE401_MAX_NULLPACKETS) |
374 | if (waitqueue_active(&se401->wq)) | |
1da177e4 | 375 | wake_up_interruptible(&se401->wq); |
1da177e4 LT |
376 | } |
377 | ||
378 | /* Resubmit urb for new data */ | |
aae40fd2 AC |
379 | urb->status = 0; |
380 | urb->dev = se401->dev; | |
381 | if (usb_submit_urb(urb, GFP_KERNEL)) | |
a482f327 | 382 | dev_info(&urb->dev->dev, "urb burned down\n"); |
1da177e4 LT |
383 | return; |
384 | } | |
385 | ||
386 | static void se401_send_size(struct usb_se401 *se401, int width, int height) | |
387 | { | |
aae40fd2 AC |
388 | int i = 0; |
389 | int mode = 0x03; /* No compression */ | |
390 | int sendheight = height; | |
391 | int sendwidth = width; | |
1da177e4 LT |
392 | |
393 | /* JangGu compression can only be used with the camera supported sizes, | |
394 | but bayer seems to work with any size that fits on the sensor. | |
395 | We check if we can use compression with the current size with either | |
396 | 4 or 16 times subcapturing, if not we use uncompressed bayer data | |
397 | but this will result in cutouts of the maximum size.... | |
398 | */ | |
aae40fd2 AC |
399 | while (i < se401->sizes && !(se401->width[i] == width && |
400 | se401->height[i] == height)) | |
1da177e4 | 401 | i++; |
aae40fd2 AC |
402 | while (i < se401->sizes) { |
403 | if (se401->width[i] == width * 2 && | |
404 | se401->height[i] == height * 2) { | |
405 | sendheight = se401->height[i]; | |
406 | sendwidth = se401->width[i]; | |
407 | mode = 0x40; | |
1da177e4 | 408 | } |
aae40fd2 AC |
409 | if (se401->width[i] == width * 4 && |
410 | se401->height[i] == height * 4) { | |
411 | sendheight = se401->height[i]; | |
412 | sendwidth = se401->width[i]; | |
413 | mode = 0x42; | |
1da177e4 LT |
414 | } |
415 | i++; | |
416 | } | |
417 | ||
418 | se401_sndctrl(1, se401, SE401_REQ_SET_WIDTH, sendwidth, NULL, 0); | |
419 | se401_sndctrl(1, se401, SE401_REQ_SET_HEIGHT, sendheight, NULL, 0); | |
420 | se401_set_feature(se401, SE401_OPERATINGMODE, mode); | |
421 | ||
aae40fd2 AC |
422 | if (mode == 0x03) |
423 | se401->format = FMT_BAYER; | |
424 | else | |
425 | se401->format = FMT_JANGGU; | |
1da177e4 LT |
426 | } |
427 | ||
428 | /* | |
429 | In this function se401_send_pict is called several times, | |
430 | for some reason (depending on the state of the sensor and the phase of | |
431 | the moon :) doing this only in either place doesn't always work... | |
432 | */ | |
433 | static int se401_start_stream(struct usb_se401 *se401) | |
434 | { | |
435 | struct urb *urb; | |
aae40fd2 AC |
436 | int err = 0, i; |
437 | se401->streaming = 1; | |
1da177e4 | 438 | |
d56410e0 MCC |
439 | se401_sndctrl(1, se401, SE401_REQ_CAMERA_POWER, 1, NULL, 0); |
440 | se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 1, NULL, 0); | |
1da177e4 LT |
441 | |
442 | /* Set picture settings */ | |
aae40fd2 AC |
443 | /* windowed + pix intg */ |
444 | se401_set_feature(se401, HV7131_REG_MODE_B, 0x05); | |
1da177e4 LT |
445 | se401_send_pict(se401); |
446 | ||
447 | se401_send_size(se401, se401->cwidth, se401->cheight); | |
448 | ||
aae40fd2 AC |
449 | se401_sndctrl(1, se401, SE401_REQ_START_CONTINUOUS_CAPTURE, |
450 | 0, NULL, 0); | |
1da177e4 LT |
451 | |
452 | /* Do some memory allocation */ | |
aae40fd2 AC |
453 | for (i = 0; i < SE401_NUMFRAMES; i++) { |
454 | se401->frame[i].data = se401->fbuf + i * se401->maxframesize; | |
455 | se401->frame[i].curpix = 0; | |
1da177e4 | 456 | } |
aae40fd2 AC |
457 | for (i = 0; i < SE401_NUMSBUF; i++) { |
458 | se401->sbuf[i].data = kmalloc(SE401_PACKETSIZE, GFP_KERNEL); | |
fd51c697 | 459 | if (!se401->sbuf[i].data) { |
aae40fd2 | 460 | for (i = i - 1; i >= 0; i--) { |
fd51c697 AC |
461 | kfree(se401->sbuf[i].data); |
462 | se401->sbuf[i].data = NULL; | |
463 | } | |
464 | return -ENOMEM; | |
465 | } | |
1da177e4 LT |
466 | } |
467 | ||
aae40fd2 AC |
468 | se401->bayeroffset = 0; |
469 | se401->scratch_next = 0; | |
470 | se401->scratch_use = 0; | |
471 | se401->scratch_overflow = 0; | |
472 | for (i = 0; i < SE401_NUMSCRATCH; i++) { | |
473 | se401->scratch[i].data = kmalloc(SE401_PACKETSIZE, GFP_KERNEL); | |
fd51c697 | 474 | if (!se401->scratch[i].data) { |
aae40fd2 | 475 | for (i = i - 1; i >= 0; i--) { |
fd51c697 AC |
476 | kfree(se401->scratch[i].data); |
477 | se401->scratch[i].data = NULL; | |
478 | } | |
479 | goto nomem_sbuf; | |
480 | } | |
aae40fd2 | 481 | se401->scratch[i].state = BUFFER_UNUSED; |
1da177e4 LT |
482 | } |
483 | ||
aae40fd2 AC |
484 | for (i = 0; i < SE401_NUMSBUF; i++) { |
485 | urb = usb_alloc_urb(0, GFP_KERNEL); | |
486 | if (!urb) { | |
487 | for (i = i - 1; i >= 0; i--) { | |
fd51c697 AC |
488 | usb_kill_urb(se401->urb[i]); |
489 | usb_free_urb(se401->urb[i]); | |
490 | se401->urb[i] = NULL; | |
491 | } | |
492 | goto nomem_scratch; | |
493 | } | |
1da177e4 LT |
494 | |
495 | usb_fill_bulk_urb(urb, se401->dev, | |
496 | usb_rcvbulkpipe(se401->dev, SE401_VIDEO_ENDPOINT), | |
497 | se401->sbuf[i].data, SE401_PACKETSIZE, | |
498 | se401_video_irq, | |
499 | se401); | |
500 | ||
aae40fd2 | 501 | se401->urb[i] = urb; |
1da177e4 | 502 | |
aae40fd2 AC |
503 | err = usb_submit_urb(se401->urb[i], GFP_KERNEL); |
504 | if (err) | |
1da177e4 LT |
505 | err("urb burned down"); |
506 | } | |
507 | ||
aae40fd2 | 508 | se401->framecount = 0; |
1da177e4 LT |
509 | |
510 | return 0; | |
fd51c697 AC |
511 | |
512 | nomem_scratch: | |
aae40fd2 | 513 | for (i = 0; i < SE401_NUMSCRATCH; i++) { |
fd51c697 AC |
514 | kfree(se401->scratch[i].data); |
515 | se401->scratch[i].data = NULL; | |
516 | } | |
517 | nomem_sbuf: | |
aae40fd2 | 518 | for (i = 0; i < SE401_NUMSBUF; i++) { |
fd51c697 AC |
519 | kfree(se401->sbuf[i].data); |
520 | se401->sbuf[i].data = NULL; | |
521 | } | |
522 | return -ENOMEM; | |
1da177e4 LT |
523 | } |
524 | ||
525 | static int se401_stop_stream(struct usb_se401 *se401) | |
526 | { | |
527 | int i; | |
528 | ||
529 | if (!se401->streaming || !se401->dev) | |
530 | return 1; | |
531 | ||
aae40fd2 | 532 | se401->streaming = 0; |
1da177e4 LT |
533 | |
534 | se401_sndctrl(1, se401, SE401_REQ_STOP_CONTINUOUS_CAPTURE, 0, NULL, 0); | |
535 | ||
536 | se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 0, NULL, 0); | |
537 | se401_sndctrl(1, se401, SE401_REQ_CAMERA_POWER, 0, NULL, 0); | |
538 | ||
aae40fd2 AC |
539 | for (i = 0; i < SE401_NUMSBUF; i++) |
540 | if (se401->urb[i]) { | |
541 | usb_kill_urb(se401->urb[i]); | |
542 | usb_free_urb(se401->urb[i]); | |
543 | se401->urb[i] = NULL; | |
544 | kfree(se401->sbuf[i].data); | |
545 | } | |
546 | for (i = 0; i < SE401_NUMSCRATCH; i++) { | |
1da177e4 | 547 | kfree(se401->scratch[i].data); |
aae40fd2 | 548 | se401->scratch[i].data = NULL; |
1da177e4 LT |
549 | } |
550 | ||
551 | return 0; | |
552 | } | |
553 | ||
554 | static int se401_set_size(struct usb_se401 *se401, int width, int height) | |
555 | { | |
aae40fd2 | 556 | int wasstreaming = se401->streaming; |
1da177e4 | 557 | /* Check to see if we need to change */ |
aae40fd2 | 558 | if (se401->cwidth == width && se401->cheight == height) |
1da177e4 LT |
559 | return 0; |
560 | ||
561 | /* Check for a valid mode */ | |
562 | if (!width || !height) | |
563 | return 1; | |
564 | if ((width & 1) || (height & 1)) | |
565 | return 1; | |
aae40fd2 | 566 | if (width > se401->width[se401->sizes-1]) |
1da177e4 | 567 | return 1; |
aae40fd2 | 568 | if (height > se401->height[se401->sizes-1]) |
1da177e4 LT |
569 | return 1; |
570 | ||
571 | /* Stop a current stream and start it again at the new size */ | |
572 | if (wasstreaming) | |
573 | se401_stop_stream(se401); | |
aae40fd2 AC |
574 | se401->cwidth = width; |
575 | se401->cheight = height; | |
1da177e4 LT |
576 | if (wasstreaming) |
577 | se401_start_stream(se401); | |
578 | return 0; | |
579 | } | |
580 | ||
581 | ||
582 | /**************************************************************************** | |
583 | * | |
584 | * Video Decoding | |
585 | * | |
586 | ***************************************************************************/ | |
587 | ||
588 | /* | |
589 | This shouldn't really be done in a v4l driver.... | |
590 | But it does make the image look a lot more usable. | |
591 | Basically it lifts the dark pixels more than the light pixels. | |
592 | */ | |
593 | static inline void enhance_picture(unsigned char *frame, int len) | |
594 | { | |
595 | while (len--) { | |
aae40fd2 | 596 | *frame = (((*frame^255)*(*frame^255))/255)^255; |
1da177e4 LT |
597 | frame++; |
598 | } | |
599 | } | |
600 | ||
601 | static inline void decode_JangGu_integrate(struct usb_se401 *se401, int data) | |
602 | { | |
aae40fd2 AC |
603 | struct se401_frame *frame = &se401->frame[se401->curframe]; |
604 | int linelength = se401->cwidth * 3; | |
1da177e4 LT |
605 | |
606 | if (frame->curlinepix >= linelength) { | |
aae40fd2 AC |
607 | frame->curlinepix = 0; |
608 | frame->curline += linelength; | |
1da177e4 LT |
609 | } |
610 | ||
611 | /* First three are absolute, all others relative. | |
d56410e0 | 612 | * Format is rgb from right to left (mirrorred image), |
1da177e4 | 613 | * we flip it to get bgr from left to right. */ |
aae40fd2 AC |
614 | if (frame->curlinepix < 3) |
615 | *(frame->curline-frame->curlinepix) = 1 + data * 4; | |
616 | else | |
617 | *(frame->curline-frame->curlinepix) = | |
618 | *(frame->curline-frame->curlinepix + 3) + data * 4; | |
1da177e4 LT |
619 | frame->curlinepix++; |
620 | } | |
621 | ||
aae40fd2 AC |
622 | static inline void decode_JangGu_vlc(struct usb_se401 *se401, |
623 | unsigned char *data, int bit_exp, int packetlength) | |
1da177e4 | 624 | { |
aae40fd2 AC |
625 | int pos = 0; |
626 | int vlc_cod = 0; | |
627 | int vlc_size = 0; | |
628 | int vlc_data = 0; | |
1da177e4 LT |
629 | int bit_cur; |
630 | int bit; | |
aae40fd2 | 631 | data += 4; |
1da177e4 | 632 | while (pos < packetlength) { |
aae40fd2 | 633 | bit_cur = 8; |
1da177e4 | 634 | while (bit_cur && bit_exp) { |
aae40fd2 | 635 | bit = ((*data) >> (bit_cur-1))&1; |
1da177e4 LT |
636 | if (!vlc_cod) { |
637 | if (bit) { | |
638 | vlc_size++; | |
639 | } else { | |
aae40fd2 | 640 | if (!vlc_size) |
1da177e4 | 641 | decode_JangGu_integrate(se401, 0); |
aae40fd2 AC |
642 | else { |
643 | vlc_cod = 2; | |
644 | vlc_data = 0; | |
1da177e4 LT |
645 | } |
646 | } | |
647 | } else { | |
aae40fd2 | 648 | if (vlc_cod == 2) { |
1da177e4 | 649 | if (!bit) |
aae40fd2 | 650 | vlc_data = -(1 << vlc_size) + 1; |
1da177e4 LT |
651 | vlc_cod--; |
652 | } | |
653 | vlc_size--; | |
aae40fd2 | 654 | vlc_data += bit << vlc_size; |
1da177e4 LT |
655 | if (!vlc_size) { |
656 | decode_JangGu_integrate(se401, vlc_data); | |
aae40fd2 | 657 | vlc_cod = 0; |
1da177e4 LT |
658 | } |
659 | } | |
660 | bit_cur--; | |
661 | bit_exp--; | |
662 | } | |
663 | pos++; | |
664 | data++; | |
665 | } | |
666 | } | |
667 | ||
aae40fd2 AC |
668 | static inline void decode_JangGu(struct usb_se401 *se401, |
669 | struct se401_scratch *buffer) | |
1da177e4 | 670 | { |
aae40fd2 AC |
671 | unsigned char *data = buffer->data; |
672 | int len = buffer->length; | |
673 | int bit_exp = 0, pix_exp = 0, frameinfo = 0, packetlength = 0, size; | |
674 | int datapos = 0; | |
1da177e4 LT |
675 | |
676 | /* New image? */ | |
677 | if (!se401->frame[se401->curframe].curpix) { | |
aae40fd2 AC |
678 | se401->frame[se401->curframe].curlinepix = 0; |
679 | se401->frame[se401->curframe].curline = | |
1da177e4 | 680 | se401->frame[se401->curframe].data+ |
aae40fd2 AC |
681 | se401->cwidth * 3 - 1; |
682 | if (se401->frame[se401->curframe].grabstate == FRAME_READY) | |
683 | se401->frame[se401->curframe].grabstate = FRAME_GRABBING; | |
684 | se401->vlcdatapos = 0; | |
1da177e4 LT |
685 | } |
686 | while (datapos < len) { | |
aae40fd2 | 687 | size = 1024 - se401->vlcdatapos; |
1da177e4 | 688 | if (size+datapos > len) |
aae40fd2 | 689 | size = len-datapos; |
1da177e4 | 690 | memcpy(se401->vlcdata+se401->vlcdatapos, data+datapos, size); |
aae40fd2 AC |
691 | se401->vlcdatapos += size; |
692 | packetlength = 0; | |
1da177e4 | 693 | if (se401->vlcdatapos >= 4) { |
aae40fd2 AC |
694 | bit_exp = se401->vlcdata[3] + (se401->vlcdata[2] << 8); |
695 | pix_exp = se401->vlcdata[1] + | |
696 | ((se401->vlcdata[0] & 0x3f) << 8); | |
697 | frameinfo = se401->vlcdata[0] & 0xc0; | |
698 | packetlength = ((bit_exp + 47) >> 4) << 1; | |
1da177e4 | 699 | if (packetlength > 1024) { |
aae40fd2 AC |
700 | se401->vlcdatapos = 0; |
701 | datapos = len; | |
702 | packetlength = 0; | |
1da177e4 | 703 | se401->error++; |
aae40fd2 | 704 | se401->frame[se401->curframe].curpix = 0; |
1da177e4 LT |
705 | } |
706 | } | |
707 | if (packetlength && se401->vlcdatapos >= packetlength) { | |
aae40fd2 AC |
708 | decode_JangGu_vlc(se401, se401->vlcdata, bit_exp, |
709 | packetlength); | |
710 | se401->frame[se401->curframe].curpix += pix_exp * 3; | |
711 | datapos += size-(se401->vlcdatapos-packetlength); | |
712 | se401->vlcdatapos = 0; | |
713 | if (se401->frame[se401->curframe].curpix >= se401->cwidth * se401->cheight * 3) { | |
714 | if (se401->frame[se401->curframe].curpix == se401->cwidth * se401->cheight * 3) { | |
715 | if (se401->frame[se401->curframe].grabstate == FRAME_GRABBING) { | |
716 | se401->frame[se401->curframe].grabstate = FRAME_DONE; | |
1da177e4 LT |
717 | se401->framecount++; |
718 | se401->readcount++; | |
719 | } | |
aae40fd2 AC |
720 | if (se401->frame[(se401->curframe + 1) & (SE401_NUMFRAMES - 1)].grabstate == FRAME_READY) |
721 | se401->curframe = (se401->curframe + 1) & (SE401_NUMFRAMES - 1); | |
722 | } else | |
1da177e4 | 723 | se401->error++; |
aae40fd2 AC |
724 | se401->frame[se401->curframe].curpix = 0; |
725 | datapos = len; | |
1da177e4 | 726 | } |
aae40fd2 AC |
727 | } else |
728 | datapos += size; | |
1da177e4 LT |
729 | } |
730 | } | |
731 | ||
aae40fd2 AC |
732 | static inline void decode_bayer(struct usb_se401 *se401, |
733 | struct se401_scratch *buffer) | |
1da177e4 | 734 | { |
aae40fd2 AC |
735 | unsigned char *data = buffer->data; |
736 | int len = buffer->length; | |
737 | int offset = buffer->offset; | |
738 | int datasize = se401->cwidth * se401->cheight; | |
739 | struct se401_frame *frame = &se401->frame[se401->curframe]; | |
740 | unsigned char *framedata = frame->data, *curline, *nextline; | |
741 | int width = se401->cwidth; | |
742 | int blineoffset = 0, bline; | |
743 | int linelength = width * 3, i; | |
1da177e4 | 744 | |
d56410e0 | 745 | |
aae40fd2 AC |
746 | if (frame->curpix == 0) { |
747 | if (frame->grabstate == FRAME_READY) | |
748 | frame->grabstate = FRAME_GRABBING; | |
1da177e4 | 749 | |
aae40fd2 AC |
750 | frame->curline = framedata + linelength; |
751 | frame->curlinepix = 0; | |
1da177e4 LT |
752 | } |
753 | ||
aae40fd2 | 754 | if (offset != frame->curpix) { |
1da177e4 | 755 | /* Regard frame as lost :( */ |
aae40fd2 | 756 | frame->curpix = 0; |
1da177e4 LT |
757 | se401->error++; |
758 | return; | |
759 | } | |
760 | ||
761 | /* Check if we have to much data */ | |
aae40fd2 AC |
762 | if (frame->curpix + len > datasize) |
763 | len = datasize-frame->curpix; | |
764 | ||
765 | if (se401->cheight % 4) | |
766 | blineoffset = 1; | |
767 | bline = frame->curpix / se401->cwidth+blineoffset; | |
768 | ||
769 | curline = frame->curline; | |
770 | nextline = curline + linelength; | |
771 | if (nextline >= framedata+datasize * 3) | |
772 | nextline = curline; | |
1da177e4 | 773 | while (len) { |
aae40fd2 AC |
774 | if (frame->curlinepix >= width) { |
775 | frame->curlinepix -= width; | |
776 | bline = frame->curpix / width + blineoffset; | |
777 | curline += linelength*2; | |
778 | nextline += linelength*2; | |
779 | if (curline >= framedata+datasize * 3) { | |
1da177e4 | 780 | frame->curlinepix++; |
aae40fd2 AC |
781 | curline -= 3; |
782 | nextline -= 3; | |
1da177e4 LT |
783 | len--; |
784 | data++; | |
785 | frame->curpix++; | |
786 | } | |
787 | if (nextline >= framedata+datasize*3) | |
aae40fd2 | 788 | nextline = curline; |
1da177e4 | 789 | } |
aae40fd2 AC |
790 | if (bline & 1) { |
791 | if (frame->curlinepix & 1) { | |
792 | *(curline + 2) = *data; | |
793 | *(curline - 1) = *data; | |
794 | *(nextline + 2) = *data; | |
795 | *(nextline - 1) = *data; | |
1da177e4 | 796 | } else { |
aae40fd2 AC |
797 | *(curline + 1) = |
798 | (*(curline + 1) + *data) / 2; | |
799 | *(curline-2) = | |
800 | (*(curline - 2) + *data) / 2; | |
801 | *(nextline + 1) = *data; | |
802 | *(nextline - 2) = *data; | |
1da177e4 LT |
803 | } |
804 | } else { | |
aae40fd2 AC |
805 | if (frame->curlinepix & 1) { |
806 | *(curline + 1) = | |
807 | (*(curline + 1) + *data) / 2; | |
808 | *(curline - 2) = | |
809 | (*(curline - 2) + *data) / 2; | |
810 | *(nextline + 1) = *data; | |
811 | *(nextline - 2) = *data; | |
1da177e4 | 812 | } else { |
aae40fd2 AC |
813 | *curline = *data; |
814 | *(curline - 3) = *data; | |
815 | *nextline = *data; | |
816 | *(nextline - 3) = *data; | |
1da177e4 LT |
817 | } |
818 | } | |
819 | frame->curlinepix++; | |
aae40fd2 AC |
820 | curline -= 3; |
821 | nextline -= 3; | |
1da177e4 LT |
822 | len--; |
823 | data++; | |
824 | frame->curpix++; | |
825 | } | |
aae40fd2 | 826 | frame->curline = curline; |
1da177e4 | 827 | |
aae40fd2 | 828 | if (frame->curpix >= datasize) { |
1da177e4 | 829 | /* Fix the top line */ |
aae40fd2 AC |
830 | framedata += linelength; |
831 | for (i = 0; i < linelength; i++) { | |
1da177e4 | 832 | framedata--; |
aae40fd2 | 833 | *framedata = *(framedata + linelength); |
1da177e4 LT |
834 | } |
835 | /* Fix the left side (green is already present) */ | |
aae40fd2 AC |
836 | for (i = 0; i < se401->cheight; i++) { |
837 | *framedata = *(framedata + 3); | |
838 | *(framedata + 1) = *(framedata + 4); | |
839 | *(framedata + 2) = *(framedata + 5); | |
840 | framedata += linelength; | |
1da177e4 | 841 | } |
aae40fd2 AC |
842 | frame->curpix = 0; |
843 | frame->grabstate = FRAME_DONE; | |
1da177e4 LT |
844 | se401->framecount++; |
845 | se401->readcount++; | |
aae40fd2 AC |
846 | if (se401->frame[(se401->curframe + 1) & |
847 | (SE401_NUMFRAMES - 1)].grabstate == FRAME_READY) { | |
848 | se401->curframe = (se401->curframe+1) & | |
849 | (SE401_NUMFRAMES-1); | |
1da177e4 LT |
850 | } |
851 | } | |
852 | } | |
853 | ||
854 | static int se401_newframe(struct usb_se401 *se401, int framenr) | |
855 | { | |
856 | DECLARE_WAITQUEUE(wait, current); | |
aae40fd2 | 857 | int errors = 0; |
1da177e4 LT |
858 | |
859 | while (se401->streaming && | |
aae40fd2 AC |
860 | (se401->frame[framenr].grabstate == FRAME_READY || |
861 | se401->frame[framenr].grabstate == FRAME_GRABBING)) { | |
862 | if (!se401->frame[framenr].curpix) | |
1da177e4 | 863 | errors++; |
aae40fd2 | 864 | |
1da177e4 | 865 | wait_interruptible( |
aae40fd2 AC |
866 | se401->scratch[se401->scratch_use].state != BUFFER_READY, |
867 | &se401->wq, &wait); | |
1da177e4 | 868 | if (se401->nullpackets > SE401_MAX_NULLPACKETS) { |
aae40fd2 | 869 | se401->nullpackets = 0; |
a482f327 | 870 | dev_info(&se401->dev->dev, |
aae40fd2 | 871 | "too many null length packets, restarting capture\n"); |
1da177e4 | 872 | se401_stop_stream(se401); |
d56410e0 | 873 | se401_start_stream(se401); |
1da177e4 | 874 | } else { |
aae40fd2 AC |
875 | if (se401->scratch[se401->scratch_use].state != |
876 | BUFFER_READY) { | |
877 | se401->frame[framenr].grabstate = FRAME_ERROR; | |
1da177e4 LT |
878 | return -EIO; |
879 | } | |
aae40fd2 AC |
880 | se401->scratch[se401->scratch_use].state = BUFFER_BUSY; |
881 | if (se401->format == FMT_JANGGU) | |
882 | decode_JangGu(se401, | |
883 | &se401->scratch[se401->scratch_use]); | |
884 | else | |
885 | decode_bayer(se401, | |
886 | &se401->scratch[se401->scratch_use]); | |
887 | ||
888 | se401->scratch[se401->scratch_use].state = | |
889 | BUFFER_UNUSED; | |
1da177e4 | 890 | se401->scratch_use++; |
aae40fd2 AC |
891 | if (se401->scratch_use >= SE401_NUMSCRATCH) |
892 | se401->scratch_use = 0; | |
1da177e4 | 893 | if (errors > SE401_MAX_ERRORS) { |
aae40fd2 | 894 | errors = 0; |
a482f327 | 895 | dev_info(&se401->dev->dev, |
aae40fd2 | 896 | "too many errors, restarting capture\n"); |
1da177e4 LT |
897 | se401_stop_stream(se401); |
898 | se401_start_stream(se401); | |
899 | } | |
900 | } | |
901 | } | |
902 | ||
aae40fd2 | 903 | if (se401->frame[framenr].grabstate == FRAME_DONE) |
1da177e4 | 904 | if (se401->enhance) |
aae40fd2 AC |
905 | enhance_picture(se401->frame[framenr].data, |
906 | se401->cheight * se401->cwidth * 3); | |
1da177e4 LT |
907 | return 0; |
908 | } | |
909 | ||
aae40fd2 | 910 | static void usb_se401_remove_disconnected(struct usb_se401 *se401) |
1da177e4 LT |
911 | { |
912 | int i; | |
913 | ||
d56410e0 | 914 | se401->dev = NULL; |
1da177e4 | 915 | |
aae40fd2 | 916 | for (i = 0; i < SE401_NUMSBUF; i++) |
1bc3c9e1 JJ |
917 | if (se401->urb[i]) { |
918 | usb_kill_urb(se401->urb[i]); | |
919 | usb_free_urb(se401->urb[i]); | |
920 | se401->urb[i] = NULL; | |
921 | kfree(se401->sbuf[i].data); | |
922 | } | |
aae40fd2 AC |
923 | |
924 | for (i = 0; i < SE401_NUMSCRATCH; i++) | |
1da177e4 | 925 | kfree(se401->scratch[i].data); |
aae40fd2 | 926 | |
1da177e4 LT |
927 | if (se401->inturb) { |
928 | usb_kill_urb(se401->inturb); | |
929 | usb_free_urb(se401->inturb); | |
930 | } | |
a482f327 | 931 | dev_info(&se401->dev->dev, "%s disconnected", se401->camera_name); |
1da177e4 | 932 | |
d56410e0 | 933 | /* Free the memory */ |
1da177e4 LT |
934 | kfree(se401->width); |
935 | kfree(se401->height); | |
936 | kfree(se401); | |
937 | } | |
938 | ||
939 | ||
940 | ||
941 | /**************************************************************************** | |
942 | * | |
943 | * Video4Linux | |
944 | * | |
945 | ***************************************************************************/ | |
946 | ||
947 | ||
bec43661 | 948 | static int se401_open(struct file *file) |
1da177e4 LT |
949 | { |
950 | struct video_device *dev = video_devdata(file); | |
951 | struct usb_se401 *se401 = (struct usb_se401 *)dev; | |
952 | int err = 0; | |
953 | ||
d56dc612 HV |
954 | lock_kernel(); |
955 | if (se401->user) { | |
956 | unlock_kernel(); | |
1da177e4 | 957 | return -EBUSY; |
d56dc612 | 958 | } |
1da177e4 LT |
959 | se401->fbuf = rvmalloc(se401->maxframesize * SE401_NUMFRAMES); |
960 | if (se401->fbuf) | |
961 | file->private_data = dev; | |
d56410e0 | 962 | else |
1da177e4 LT |
963 | err = -ENOMEM; |
964 | se401->user = !err; | |
d56dc612 | 965 | unlock_kernel(); |
1da177e4 LT |
966 | |
967 | return err; | |
968 | } | |
969 | ||
bec43661 | 970 | static int se401_close(struct file *file) |
1da177e4 LT |
971 | { |
972 | struct video_device *dev = file->private_data; | |
d56410e0 | 973 | struct usb_se401 *se401 = (struct usb_se401 *)dev; |
1da177e4 LT |
974 | int i; |
975 | ||
976 | rvfree(se401->fbuf, se401->maxframesize * SE401_NUMFRAMES); | |
d56410e0 | 977 | if (se401->removed) { |
a482f327 | 978 | dev_info(&se401->dev->dev, "device unregistered\n"); |
1da177e4 | 979 | usb_se401_remove_disconnected(se401); |
1da177e4 | 980 | } else { |
aae40fd2 AC |
981 | for (i = 0; i < SE401_NUMFRAMES; i++) |
982 | se401->frame[i].grabstate = FRAME_UNUSED; | |
1da177e4 LT |
983 | if (se401->streaming) |
984 | se401_stop_stream(se401); | |
aae40fd2 | 985 | se401->user = 0; |
1da177e4 LT |
986 | } |
987 | file->private_data = NULL; | |
988 | return 0; | |
989 | } | |
990 | ||
069b7479 | 991 | static long se401_do_ioctl(struct file *file, unsigned int cmd, void *arg) |
1da177e4 LT |
992 | { |
993 | struct video_device *vdev = file->private_data; | |
d56410e0 | 994 | struct usb_se401 *se401 = (struct usb_se401 *)vdev; |
1da177e4 | 995 | |
d56410e0 MCC |
996 | if (!se401->dev) |
997 | return -EIO; | |
1da177e4 | 998 | |
d56410e0 | 999 | switch (cmd) { |
1da177e4 LT |
1000 | case VIDIOCGCAP: |
1001 | { | |
1002 | struct video_capability *b = arg; | |
1003 | strcpy(b->name, se401->camera_name); | |
1004 | b->type = VID_TYPE_CAPTURE; | |
1005 | b->channels = 1; | |
1006 | b->audios = 0; | |
1007 | b->maxwidth = se401->width[se401->sizes-1]; | |
1008 | b->maxheight = se401->height[se401->sizes-1]; | |
1009 | b->minwidth = se401->width[0]; | |
1010 | b->minheight = se401->height[0]; | |
1011 | return 0; | |
1012 | } | |
1013 | case VIDIOCGCHAN: | |
1014 | { | |
1015 | struct video_channel *v = arg; | |
1016 | ||
1017 | if (v->channel != 0) | |
1018 | return -EINVAL; | |
1019 | v->flags = 0; | |
1020 | v->tuners = 0; | |
1021 | v->type = VIDEO_TYPE_CAMERA; | |
1022 | strcpy(v->name, "Camera"); | |
1023 | return 0; | |
1024 | } | |
1025 | case VIDIOCSCHAN: | |
1026 | { | |
1027 | struct video_channel *v = arg; | |
1028 | ||
1029 | if (v->channel != 0) | |
1030 | return -EINVAL; | |
1031 | return 0; | |
1032 | } | |
d56410e0 MCC |
1033 | case VIDIOCGPICT: |
1034 | { | |
1da177e4 LT |
1035 | struct video_picture *p = arg; |
1036 | ||
1037 | se401_get_pict(se401, p); | |
1038 | return 0; | |
1039 | } | |
1040 | case VIDIOCSPICT: | |
1041 | { | |
1042 | struct video_picture *p = arg; | |
1043 | ||
1044 | if (se401_set_pict(se401, p)) | |
1045 | return -EINVAL; | |
1046 | return 0; | |
1047 | } | |
1048 | case VIDIOCSWIN: | |
1049 | { | |
1050 | struct video_window *vw = arg; | |
1051 | ||
1052 | if (vw->flags) | |
1053 | return -EINVAL; | |
1054 | if (vw->clipcount) | |
1055 | return -EINVAL; | |
1056 | if (se401_set_size(se401, vw->width, vw->height)) | |
1057 | return -EINVAL; | |
1058 | return 0; | |
d56410e0 | 1059 | } |
1da177e4 LT |
1060 | case VIDIOCGWIN: |
1061 | { | |
1062 | struct video_window *vw = arg; | |
1063 | ||
1064 | vw->x = 0; /* FIXME */ | |
1065 | vw->y = 0; | |
1066 | vw->chromakey = 0; | |
1067 | vw->flags = 0; | |
1068 | vw->clipcount = 0; | |
1069 | vw->width = se401->cwidth; | |
1070 | vw->height = se401->cheight; | |
1071 | return 0; | |
1072 | } | |
1073 | case VIDIOCGMBUF: | |
1074 | { | |
1075 | struct video_mbuf *vm = arg; | |
1076 | int i; | |
1077 | ||
1078 | memset(vm, 0, sizeof(*vm)); | |
1079 | vm->size = SE401_NUMFRAMES * se401->maxframesize; | |
1080 | vm->frames = SE401_NUMFRAMES; | |
aae40fd2 | 1081 | for (i = 0; i < SE401_NUMFRAMES; i++) |
1da177e4 LT |
1082 | vm->offsets[i] = se401->maxframesize * i; |
1083 | return 0; | |
1084 | } | |
1085 | case VIDIOCMCAPTURE: | |
1086 | { | |
1087 | struct video_mmap *vm = arg; | |
1088 | ||
1089 | if (vm->format != VIDEO_PALETTE_RGB24) | |
1090 | return -EINVAL; | |
1091 | if (vm->frame >= SE401_NUMFRAMES) | |
1092 | return -EINVAL; | |
1093 | if (se401->frame[vm->frame].grabstate != FRAME_UNUSED) | |
1094 | return -EBUSY; | |
1095 | ||
1096 | /* Is this according to the v4l spec??? */ | |
1097 | if (se401_set_size(se401, vm->width, vm->height)) | |
1098 | return -EINVAL; | |
aae40fd2 | 1099 | se401->frame[vm->frame].grabstate = FRAME_READY; |
1da177e4 LT |
1100 | |
1101 | if (!se401->streaming) | |
1102 | se401_start_stream(se401); | |
1103 | ||
1104 | /* Set the picture properties */ | |
aae40fd2 | 1105 | if (se401->framecount == 0) |
1da177e4 LT |
1106 | se401_send_pict(se401); |
1107 | /* Calibrate the reset level after a few frames. */ | |
aae40fd2 | 1108 | if (se401->framecount % 20 == 1) |
1da177e4 LT |
1109 | se401_auto_resetlevel(se401); |
1110 | ||
1111 | return 0; | |
1112 | } | |
1113 | case VIDIOCSYNC: | |
1114 | { | |
1115 | int *frame = arg; | |
aae40fd2 | 1116 | int ret = 0; |
1da177e4 | 1117 | |
aae40fd2 | 1118 | if (*frame < 0 || *frame >= SE401_NUMFRAMES) |
1da177e4 LT |
1119 | return -EINVAL; |
1120 | ||
aae40fd2 AC |
1121 | ret = se401_newframe(se401, *frame); |
1122 | se401->frame[*frame].grabstate = FRAME_UNUSED; | |
1da177e4 LT |
1123 | return ret; |
1124 | } | |
1125 | case VIDIOCGFBUF: | |
1126 | { | |
1127 | struct video_buffer *vb = arg; | |
1128 | ||
1129 | memset(vb, 0, sizeof(*vb)); | |
1130 | return 0; | |
1131 | } | |
1132 | case VIDIOCKEY: | |
1133 | return 0; | |
1134 | case VIDIOCCAPTURE: | |
1135 | return -EINVAL; | |
1136 | case VIDIOCSFBUF: | |
1137 | return -EINVAL; | |
1138 | case VIDIOCGTUNER: | |
1139 | case VIDIOCSTUNER: | |
1140 | return -EINVAL; | |
1141 | case VIDIOCGFREQ: | |
1142 | case VIDIOCSFREQ: | |
1143 | return -EINVAL; | |
1144 | case VIDIOCGAUDIO: | |
1145 | case VIDIOCSAUDIO: | |
1146 | return -EINVAL; | |
d56410e0 MCC |
1147 | default: |
1148 | return -ENOIOCTLCMD; | |
1149 | } /* end switch */ | |
1da177e4 | 1150 | |
d56410e0 | 1151 | return 0; |
1da177e4 LT |
1152 | } |
1153 | ||
069b7479 | 1154 | static long se401_ioctl(struct file *file, |
1da177e4 LT |
1155 | unsigned int cmd, unsigned long arg) |
1156 | { | |
f473bf76 | 1157 | return video_usercopy(file, cmd, arg, se401_do_ioctl); |
1da177e4 LT |
1158 | } |
1159 | ||
1160 | static ssize_t se401_read(struct file *file, char __user *buf, | |
1161 | size_t count, loff_t *ppos) | |
1162 | { | |
aae40fd2 | 1163 | int realcount = count, ret = 0; |
1da177e4 LT |
1164 | struct video_device *dev = file->private_data; |
1165 | struct usb_se401 *se401 = (struct usb_se401 *)dev; | |
1166 | ||
1167 | ||
aae40fd2 | 1168 | if (se401->dev == NULL) |
1da177e4 LT |
1169 | return -EIO; |
1170 | if (realcount > se401->cwidth*se401->cheight*3) | |
aae40fd2 | 1171 | realcount = se401->cwidth*se401->cheight*3; |
1da177e4 LT |
1172 | |
1173 | /* Shouldn't happen: */ | |
aae40fd2 | 1174 | if (se401->frame[0].grabstate == FRAME_GRABBING) |
1da177e4 | 1175 | return -EBUSY; |
aae40fd2 AC |
1176 | se401->frame[0].grabstate = FRAME_READY; |
1177 | se401->frame[1].grabstate = FRAME_UNUSED; | |
1178 | se401->curframe = 0; | |
1da177e4 LT |
1179 | |
1180 | if (!se401->streaming) | |
1181 | se401_start_stream(se401); | |
1182 | ||
1183 | /* Set the picture properties */ | |
aae40fd2 | 1184 | if (se401->framecount == 0) |
1da177e4 LT |
1185 | se401_send_pict(se401); |
1186 | /* Calibrate the reset level after a few frames. */ | |
aae40fd2 | 1187 | if (se401->framecount%20 == 1) |
1da177e4 LT |
1188 | se401_auto_resetlevel(se401); |
1189 | ||
aae40fd2 | 1190 | ret = se401_newframe(se401, 0); |
1da177e4 | 1191 | |
aae40fd2 | 1192 | se401->frame[0].grabstate = FRAME_UNUSED; |
1da177e4 | 1193 | if (ret) |
d56410e0 | 1194 | return ret; |
1da177e4 LT |
1195 | if (copy_to_user(buf, se401->frame[0].data, realcount)) |
1196 | return -EFAULT; | |
1197 | ||
1198 | return realcount; | |
1199 | } | |
1200 | ||
1201 | static int se401_mmap(struct file *file, struct vm_area_struct *vma) | |
1202 | { | |
1203 | struct video_device *dev = file->private_data; | |
1204 | struct usb_se401 *se401 = (struct usb_se401 *)dev; | |
1205 | unsigned long start = vma->vm_start; | |
1206 | unsigned long size = vma->vm_end-vma->vm_start; | |
1207 | unsigned long page, pos; | |
1208 | ||
4186ecf8 | 1209 | mutex_lock(&se401->lock); |
1da177e4 | 1210 | |
aae40fd2 | 1211 | if (se401->dev == NULL) { |
4186ecf8 | 1212 | mutex_unlock(&se401->lock); |
1da177e4 LT |
1213 | return -EIO; |
1214 | } | |
aae40fd2 AC |
1215 | if (size > (((SE401_NUMFRAMES * se401->maxframesize) + PAGE_SIZE - 1) |
1216 | & ~(PAGE_SIZE - 1))) { | |
4186ecf8 | 1217 | mutex_unlock(&se401->lock); |
1da177e4 LT |
1218 | return -EINVAL; |
1219 | } | |
1220 | pos = (unsigned long)se401->fbuf; | |
1221 | while (size > 0) { | |
1222 | page = vmalloc_to_pfn((void *)pos); | |
1223 | if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) { | |
4186ecf8 | 1224 | mutex_unlock(&se401->lock); |
1da177e4 LT |
1225 | return -EAGAIN; |
1226 | } | |
aae40fd2 AC |
1227 | start += PAGE_SIZE; |
1228 | pos += PAGE_SIZE; | |
1da177e4 | 1229 | if (size > PAGE_SIZE) |
aae40fd2 | 1230 | size -= PAGE_SIZE; |
1da177e4 LT |
1231 | else |
1232 | size = 0; | |
1233 | } | |
4186ecf8 | 1234 | mutex_unlock(&se401->lock); |
1da177e4 | 1235 | |
d56410e0 | 1236 | return 0; |
1da177e4 LT |
1237 | } |
1238 | ||
bec43661 | 1239 | static const struct v4l2_file_operations se401_fops = { |
aae40fd2 | 1240 | .owner = THIS_MODULE, |
d56410e0 MCC |
1241 | .open = se401_open, |
1242 | .release = se401_close, | |
1243 | .read = se401_read, | |
1244 | .mmap = se401_mmap, | |
1da177e4 | 1245 | .ioctl = se401_ioctl, |
1da177e4 LT |
1246 | }; |
1247 | static struct video_device se401_template = { | |
d56410e0 | 1248 | .name = "se401 USB camera", |
1da177e4 | 1249 | .fops = &se401_fops, |
aa5e90af | 1250 | .release = video_device_release_empty, |
1da177e4 LT |
1251 | }; |
1252 | ||
1253 | ||
1254 | ||
1255 | /***************************/ | |
1256 | static int se401_init(struct usb_se401 *se401, int button) | |
1257 | { | |
aae40fd2 | 1258 | int i = 0, rc; |
d56410e0 | 1259 | unsigned char cp[0x40]; |
1da177e4 | 1260 | char temp[200]; |
6f4d7239 | 1261 | int slen; |
1da177e4 LT |
1262 | |
1263 | /* led on */ | |
d56410e0 | 1264 | se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 1, NULL, 0); |
1da177e4 LT |
1265 | |
1266 | /* get camera descriptor */ | |
aae40fd2 AC |
1267 | rc = se401_sndctrl(0, se401, SE401_REQ_GET_CAMERA_DESCRIPTOR, 0, |
1268 | cp, sizeof(cp)); | |
6f4d7239 | 1269 | if (cp[1] != 0x41) { |
1da177e4 LT |
1270 | err("Wrong descriptor type"); |
1271 | return 1; | |
1272 | } | |
6f4d7239 | 1273 | slen = snprintf(temp, 200, "ExtraFeatures: %d", cp[3]); |
1da177e4 | 1274 | |
aae40fd2 AC |
1275 | se401->sizes = cp[4] + cp[5] * 256; |
1276 | se401->width = kmalloc(se401->sizes*sizeof(int), GFP_KERNEL); | |
1da177e4 LT |
1277 | if (!se401->width) |
1278 | return 1; | |
aae40fd2 | 1279 | se401->height = kmalloc(se401->sizes*sizeof(int), GFP_KERNEL); |
1da177e4 LT |
1280 | if (!se401->height) { |
1281 | kfree(se401->width); | |
1282 | return 1; | |
1283 | } | |
aae40fd2 AC |
1284 | for (i = 0; i < se401->sizes; i++) { |
1285 | se401->width[i] = cp[6 + i * 4 + 0] + cp[6 + i*4 + 1] * 256; | |
1286 | se401->height[i] = cp[6 + i * 4 + 2] + cp[6 + i * 4 + 3] * 256; | |
1da177e4 | 1287 | } |
aae40fd2 AC |
1288 | slen += snprintf(temp + slen, 200 - slen, " Sizes:"); |
1289 | for (i = 0; i < se401->sizes; i++) { | |
1290 | slen += snprintf(temp + slen, 200 - slen, | |
6f4d7239 | 1291 | " %dx%d", se401->width[i], se401->height[i]); |
1da177e4 | 1292 | } |
a482f327 | 1293 | dev_info(&se401->dev->dev, "%s\n", temp); |
aae40fd2 AC |
1294 | se401->maxframesize = se401->width[se401->sizes-1] * |
1295 | se401->height[se401->sizes - 1] * 3; | |
1da177e4 | 1296 | |
aae40fd2 AC |
1297 | rc = se401_sndctrl(0, se401, SE401_REQ_GET_WIDTH, 0, cp, sizeof(cp)); |
1298 | se401->cwidth = cp[0]+cp[1]*256; | |
1299 | rc = se401_sndctrl(0, se401, SE401_REQ_GET_HEIGHT, 0, cp, sizeof(cp)); | |
1300 | se401->cheight = cp[0]+cp[1]*256; | |
1da177e4 | 1301 | |
33b4af91 | 1302 | if (!(cp[2] & SE401_FORMAT_BAYER)) { |
1da177e4 LT |
1303 | err("Bayer format not supported!"); |
1304 | return 1; | |
1305 | } | |
1306 | /* set output mode (BAYER) */ | |
aae40fd2 AC |
1307 | se401_sndctrl(1, se401, SE401_REQ_SET_OUTPUT_MODE, |
1308 | SE401_FORMAT_BAYER, NULL, 0); | |
1da177e4 | 1309 | |
aae40fd2 AC |
1310 | rc = se401_sndctrl(0, se401, SE401_REQ_GET_BRT, 0, cp, sizeof(cp)); |
1311 | se401->brightness = cp[0]+cp[1]*256; | |
1da177e4 | 1312 | /* some default values */ |
aae40fd2 AC |
1313 | se401->resetlevel = 0x2d; |
1314 | se401->rgain = 0x20; | |
1315 | se401->ggain = 0x20; | |
1316 | se401->bgain = 0x20; | |
1da177e4 | 1317 | se401_set_exposure(se401, 20000); |
aae40fd2 AC |
1318 | se401->palette = VIDEO_PALETTE_RGB24; |
1319 | se401->enhance = 1; | |
1320 | se401->dropped = 0; | |
1321 | se401->error = 0; | |
1322 | se401->framecount = 0; | |
1323 | se401->readcount = 0; | |
1da177e4 LT |
1324 | |
1325 | /* Start interrupt transfers for snapshot button */ | |
1326 | if (button) { | |
aae40fd2 | 1327 | se401->inturb = usb_alloc_urb(0, GFP_KERNEL); |
1da177e4 | 1328 | if (!se401->inturb) { |
a482f327 GKH |
1329 | dev_info(&se401->dev->dev, |
1330 | "Allocation of inturb failed\n"); | |
1da177e4 LT |
1331 | return 1; |
1332 | } | |
1333 | usb_fill_int_urb(se401->inturb, se401->dev, | |
1334 | usb_rcvintpipe(se401->dev, SE401_BUTTON_ENDPOINT), | |
1335 | &se401->button, sizeof(se401->button), | |
1336 | se401_button_irq, | |
1337 | se401, | |
1338 | 8 | |
1339 | ); | |
1340 | if (usb_submit_urb(se401->inturb, GFP_KERNEL)) { | |
a482f327 | 1341 | dev_info(&se401->dev->dev, "int urb burned down\n"); |
1da177e4 LT |
1342 | return 1; |
1343 | } | |
1344 | } else | |
aae40fd2 | 1345 | se401->inturb = NULL; |
1da177e4 | 1346 | |
d56410e0 MCC |
1347 | /* Flash the led */ |
1348 | se401_sndctrl(1, se401, SE401_REQ_CAMERA_POWER, 1, NULL, 0); | |
1349 | se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 1, NULL, 0); | |
1350 | se401_sndctrl(1, se401, SE401_REQ_CAMERA_POWER, 0, NULL, 0); | |
1da177e4 LT |
1351 | se401_sndctrl(1, se401, SE401_REQ_LED_CONTROL, 0, NULL, 0); |
1352 | ||
d56410e0 | 1353 | return 0; |
1da177e4 LT |
1354 | } |
1355 | ||
1356 | static int se401_probe(struct usb_interface *intf, | |
1357 | const struct usb_device_id *id) | |
1358 | { | |
1359 | struct usb_device *dev = interface_to_usbdev(intf); | |
d56410e0 MCC |
1360 | struct usb_interface_descriptor *interface; |
1361 | struct usb_se401 *se401; | |
aae40fd2 AC |
1362 | char *camera_name = NULL; |
1363 | int button = 1; | |
1da177e4 | 1364 | |
d56410e0 MCC |
1365 | /* We don't handle multi-config cameras */ |
1366 | if (dev->descriptor.bNumConfigurations != 1) | |
1367 | return -ENODEV; | |
1da177e4 | 1368 | |
d56410e0 | 1369 | interface = &intf->cur_altsetting->desc; |
1da177e4 | 1370 | |
d56410e0 | 1371 | /* Is it an se401? */ |
aae40fd2 AC |
1372 | if (le16_to_cpu(dev->descriptor.idVendor) == 0x03e8 && |
1373 | le16_to_cpu(dev->descriptor.idProduct) == 0x0004) { | |
1374 | camera_name = "Endpoints/Aox SE401"; | |
1375 | } else if (le16_to_cpu(dev->descriptor.idVendor) == 0x0471 && | |
1376 | le16_to_cpu(dev->descriptor.idProduct) == 0x030b) { | |
1377 | camera_name = "Philips PCVC665K"; | |
1378 | } else if (le16_to_cpu(dev->descriptor.idVendor) == 0x047d && | |
1379 | le16_to_cpu(dev->descriptor.idProduct) == 0x5001) { | |
1380 | camera_name = "Kensington VideoCAM 67014"; | |
1381 | } else if (le16_to_cpu(dev->descriptor.idVendor) == 0x047d && | |
1382 | le16_to_cpu(dev->descriptor.idProduct) == 0x5002) { | |
1383 | camera_name = "Kensington VideoCAM 6701(5/7)"; | |
1384 | } else if (le16_to_cpu(dev->descriptor.idVendor) == 0x047d && | |
1385 | le16_to_cpu(dev->descriptor.idProduct) == 0x5003) { | |
1386 | camera_name = "Kensington VideoCAM 67016"; | |
1387 | button = 0; | |
1da177e4 LT |
1388 | } else |
1389 | return -ENODEV; | |
1390 | ||
d56410e0 MCC |
1391 | /* Checking vendor/product should be enough, but what the hell */ |
1392 | if (interface->bInterfaceClass != 0x00) | |
1da177e4 | 1393 | return -ENODEV; |
d56410e0 | 1394 | if (interface->bInterfaceSubClass != 0x00) |
1da177e4 LT |
1395 | return -ENODEV; |
1396 | ||
d56410e0 | 1397 | /* We found one */ |
a482f327 | 1398 | dev_info(&intf->dev, "SE401 camera found: %s\n", camera_name); |
1da177e4 | 1399 | |
aae40fd2 AC |
1400 | se401 = kzalloc(sizeof(*se401), GFP_KERNEL); |
1401 | if (se401 == NULL) { | |
d56410e0 | 1402 | err("couldn't kmalloc se401 struct"); |
1da177e4 | 1403 | return -ENOMEM; |
d56410e0 | 1404 | } |
1da177e4 | 1405 | |
d56410e0 MCC |
1406 | se401->dev = dev; |
1407 | se401->iface = interface->bInterfaceNumber; | |
1408 | se401->camera_name = camera_name; | |
1da177e4 | 1409 | |
a482f327 GKH |
1410 | dev_info(&intf->dev, "firmware version: %02x\n", |
1411 | le16_to_cpu(dev->descriptor.bcdDevice) & 255); | |
1da177e4 | 1412 | |
d56410e0 | 1413 | if (se401_init(se401, button)) { |
1da177e4 LT |
1414 | kfree(se401); |
1415 | return -EIO; | |
1416 | } | |
1417 | ||
1418 | memcpy(&se401->vdev, &se401_template, sizeof(se401_template)); | |
aae40fd2 AC |
1419 | memcpy(se401->vdev.name, se401->camera_name, |
1420 | strlen(se401->camera_name)); | |
1da177e4 | 1421 | init_waitqueue_head(&se401->wq); |
4186ecf8 | 1422 | mutex_init(&se401->lock); |
1da177e4 LT |
1423 | wmb(); |
1424 | ||
aae40fd2 AC |
1425 | if (video_register_device(&se401->vdev, |
1426 | VFL_TYPE_GRABBER, video_nr) < 0) { | |
1da177e4 LT |
1427 | kfree(se401); |
1428 | err("video_register_device failed"); | |
1429 | return -EIO; | |
1430 | } | |
a482f327 | 1431 | dev_info(&intf->dev, "registered new video device: video%d\n", |
c6330fb8 | 1432 | se401->vdev.num); |
1da177e4 | 1433 | |
aae40fd2 | 1434 | usb_set_intfdata(intf, se401); |
d56410e0 | 1435 | return 0; |
1da177e4 LT |
1436 | } |
1437 | ||
1438 | static void se401_disconnect(struct usb_interface *intf) | |
1439 | { | |
aae40fd2 | 1440 | struct usb_se401 *se401 = usb_get_intfdata(intf); |
1da177e4 | 1441 | |
aae40fd2 | 1442 | usb_set_intfdata(intf, NULL); |
1da177e4 LT |
1443 | if (se401) { |
1444 | video_unregister_device(&se401->vdev); | |
aae40fd2 | 1445 | if (!se401->user) |
1da177e4 | 1446 | usb_se401_remove_disconnected(se401); |
aae40fd2 | 1447 | else { |
1da177e4 LT |
1448 | se401->frame[0].grabstate = FRAME_ERROR; |
1449 | se401->frame[0].grabstate = FRAME_ERROR; | |
1450 | ||
1451 | se401->streaming = 0; | |
1452 | ||
1453 | wake_up_interruptible(&se401->wq); | |
1454 | se401->removed = 1; | |
1455 | } | |
1456 | } | |
1457 | } | |
1458 | ||
1459 | static struct usb_driver se401_driver = { | |
aae40fd2 AC |
1460 | .name = "se401", |
1461 | .id_table = device_table, | |
1462 | .probe = se401_probe, | |
1463 | .disconnect = se401_disconnect, | |
1da177e4 LT |
1464 | }; |
1465 | ||
1466 | ||
1467 | ||
1468 | /**************************************************************************** | |
1469 | * | |
1470 | * Module routines | |
1471 | * | |
1472 | ***************************************************************************/ | |
1473 | ||
1474 | static int __init usb_se401_init(void) | |
1475 | { | |
aae40fd2 AC |
1476 | printk(KERN_INFO "SE401 usb camera driver version %s registering\n", |
1477 | version); | |
1da177e4 | 1478 | if (flickerless) |
aae40fd2 | 1479 | if (flickerless != 50 && flickerless != 60) { |
a482f327 | 1480 | printk(KERN_ERR "Invallid flickerless value, use 0, 50 or 60.\n"); |
1da177e4 LT |
1481 | return -1; |
1482 | } | |
1483 | return usb_register(&se401_driver); | |
1484 | } | |
1485 | ||
1486 | static void __exit usb_se401_exit(void) | |
1487 | { | |
1488 | usb_deregister(&se401_driver); | |
a482f327 | 1489 | printk(KERN_INFO "SE401 driver deregistered\frame"); |
1da177e4 LT |
1490 | } |
1491 | ||
1492 | module_init(usb_se401_init); | |
1493 | module_exit(usb_se401_exit); |