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1da177e4 LT |
1 | /* |
2 | * OmniVision OV511 Camera-to-USB Bridge Driver | |
3 | * | |
4 | * Copyright (c) 1999-2003 Mark W. McClelland | |
5 | * Original decompression code Copyright 1998-2000 OmniVision Technologies | |
6 | * Many improvements by Bret Wallach <bwallac1@san.rr.com> | |
7 | * Color fixes by by Orion Sky Lawlor <olawlor@acm.org> (2/26/2000) | |
8 | * Snapshot code by Kevin Moore | |
9 | * OV7620 fixes by Charl P. Botha <cpbotha@ieee.org> | |
10 | * Changes by Claudio Matsuoka <claudio@conectiva.com> | |
11 | * Original SAA7111A code by Dave Perks <dperks@ibm.net> | |
12 | * URB error messages from pwc driver by Nemosoft | |
13 | * generic_ioctl() code from videodev.c by Gerd Knorr and Alan Cox | |
14 | * Memory management (rvmalloc) code from bttv driver, by Gerd Knorr and others | |
15 | * | |
16 | * Based on the Linux CPiA driver written by Peter Pregler, | |
17 | * Scott J. Bertin and Johannes Erdfelt. | |
d56410e0 | 18 | * |
1da177e4 LT |
19 | * Please see the file: Documentation/usb/ov511.txt |
20 | * and the website at: http://alpha.dyndns.org/ov511 | |
21 | * for more info. | |
22 | * | |
23 | * This program is free software; you can redistribute it and/or modify it | |
24 | * under the terms of the GNU General Public License as published by the | |
25 | * Free Software Foundation; either version 2 of the License, or (at your | |
26 | * option) any later version. | |
27 | * | |
28 | * This program is distributed in the hope that it will be useful, but | |
29 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
30 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
31 | * for more details. | |
32 | * | |
33 | * You should have received a copy of the GNU General Public License | |
34 | * along with this program; if not, write to the Free Software Foundation, | |
35 | * Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
36 | */ | |
37 | ||
1da177e4 LT |
38 | #include <linux/module.h> |
39 | #include <linux/init.h> | |
40 | #include <linux/vmalloc.h> | |
41 | #include <linux/slab.h> | |
42 | #include <linux/ctype.h> | |
43 | #include <linux/pagemap.h> | |
44 | #include <asm/semaphore.h> | |
45 | #include <asm/processor.h> | |
46 | #include <linux/mm.h> | |
47 | #include <linux/device.h> | |
48 | ||
49 | #if defined (__i386__) | |
50 | #include <asm/cpufeature.h> | |
51 | #endif | |
52 | ||
53 | #include "ov511.h" | |
54 | ||
55 | /* | |
56 | * Version Information | |
57 | */ | |
58 | #define DRIVER_VERSION "v1.64 for Linux 2.5" | |
59 | #define EMAIL "mark@alpha.dyndns.org" | |
60 | #define DRIVER_AUTHOR "Mark McClelland <mark@alpha.dyndns.org> & Bret Wallach \ | |
61 | & Orion Sky Lawlor <olawlor@acm.org> & Kevin Moore & Charl P. Botha \ | |
62 | <cpbotha@ieee.org> & Claudio Matsuoka <claudio@conectiva.com>" | |
63 | #define DRIVER_DESC "ov511 USB Camera Driver" | |
64 | ||
65 | #define OV511_I2C_RETRIES 3 | |
66 | #define ENABLE_Y_QUANTABLE 1 | |
67 | #define ENABLE_UV_QUANTABLE 1 | |
68 | ||
69 | #define OV511_MAX_UNIT_VIDEO 16 | |
70 | ||
71 | /* Pixel count * bytes per YUV420 pixel (1.5) */ | |
72 | #define MAX_FRAME_SIZE(w, h) ((w) * (h) * 3 / 2) | |
73 | ||
74 | #define MAX_DATA_SIZE(w, h) (MAX_FRAME_SIZE(w, h) + sizeof(struct timeval)) | |
75 | ||
76 | /* Max size * bytes per YUV420 pixel (1.5) + one extra isoc frame for safety */ | |
77 | #define MAX_RAW_DATA_SIZE(w, h) ((w) * (h) * 3 / 2 + 1024) | |
78 | ||
79 | #define FATAL_ERROR(rc) ((rc) < 0 && (rc) != -EPERM) | |
80 | ||
81 | /********************************************************************** | |
82 | * Module Parameters | |
83 | * (See ov511.txt for detailed descriptions of these) | |
84 | **********************************************************************/ | |
85 | ||
86 | /* These variables (and all static globals) default to zero */ | |
87 | static int autobright = 1; | |
88 | static int autogain = 1; | |
89 | static int autoexp = 1; | |
90 | static int debug; | |
91 | static int snapshot; | |
92 | static int cams = 1; | |
93 | static int compress; | |
94 | static int testpat; | |
95 | static int dumppix; | |
96 | static int led = 1; | |
97 | static int dump_bridge; | |
98 | static int dump_sensor; | |
99 | static int printph; | |
100 | static int phy = 0x1f; | |
101 | static int phuv = 0x05; | |
102 | static int pvy = 0x06; | |
103 | static int pvuv = 0x06; | |
104 | static int qhy = 0x14; | |
105 | static int qhuv = 0x03; | |
106 | static int qvy = 0x04; | |
107 | static int qvuv = 0x04; | |
108 | static int lightfreq; | |
109 | static int bandingfilter; | |
110 | static int clockdiv = -1; | |
111 | static int packetsize = -1; | |
112 | static int framedrop = -1; | |
113 | static int fastset; | |
114 | static int force_palette; | |
115 | static int backlight; | |
116 | static int unit_video[OV511_MAX_UNIT_VIDEO]; | |
117 | static int remove_zeros; | |
118 | static int mirror; | |
119 | static int ov518_color; | |
120 | ||
121 | module_param(autobright, int, 0); | |
122 | MODULE_PARM_DESC(autobright, "Sensor automatically changes brightness"); | |
123 | module_param(autogain, int, 0); | |
124 | MODULE_PARM_DESC(autogain, "Sensor automatically changes gain"); | |
125 | module_param(autoexp, int, 0); | |
126 | MODULE_PARM_DESC(autoexp, "Sensor automatically changes exposure"); | |
127 | module_param(debug, int, 0); | |
128 | MODULE_PARM_DESC(debug, | |
129 | "Debug level: 0=none, 1=inits, 2=warning, 3=config, 4=functions, 5=max"); | |
130 | module_param(snapshot, int, 0); | |
131 | MODULE_PARM_DESC(snapshot, "Enable snapshot mode"); | |
132 | module_param(cams, int, 0); | |
133 | MODULE_PARM_DESC(cams, "Number of simultaneous cameras"); | |
134 | module_param(compress, int, 0); | |
135 | MODULE_PARM_DESC(compress, "Turn on compression"); | |
136 | module_param(testpat, int, 0); | |
137 | MODULE_PARM_DESC(testpat, | |
138 | "Replace image with vertical bar testpattern (only partially working)"); | |
139 | module_param(dumppix, int, 0); | |
140 | MODULE_PARM_DESC(dumppix, "Dump raw pixel data"); | |
141 | module_param(led, int, 0); | |
142 | MODULE_PARM_DESC(led, | |
143 | "LED policy (OV511+ or later). 0=off, 1=on (default), 2=auto (on when open)"); | |
144 | module_param(dump_bridge, int, 0); | |
145 | MODULE_PARM_DESC(dump_bridge, "Dump the bridge registers"); | |
146 | module_param(dump_sensor, int, 0); | |
147 | MODULE_PARM_DESC(dump_sensor, "Dump the sensor registers"); | |
148 | module_param(printph, int, 0); | |
149 | MODULE_PARM_DESC(printph, "Print frame start/end headers"); | |
150 | module_param(phy, int, 0); | |
151 | MODULE_PARM_DESC(phy, "Prediction range (horiz. Y)"); | |
152 | module_param(phuv, int, 0); | |
153 | MODULE_PARM_DESC(phuv, "Prediction range (horiz. UV)"); | |
154 | module_param(pvy, int, 0); | |
155 | MODULE_PARM_DESC(pvy, "Prediction range (vert. Y)"); | |
156 | module_param(pvuv, int, 0); | |
157 | MODULE_PARM_DESC(pvuv, "Prediction range (vert. UV)"); | |
158 | module_param(qhy, int, 0); | |
159 | MODULE_PARM_DESC(qhy, "Quantization threshold (horiz. Y)"); | |
160 | module_param(qhuv, int, 0); | |
161 | MODULE_PARM_DESC(qhuv, "Quantization threshold (horiz. UV)"); | |
162 | module_param(qvy, int, 0); | |
163 | MODULE_PARM_DESC(qvy, "Quantization threshold (vert. Y)"); | |
164 | module_param(qvuv, int, 0); | |
165 | MODULE_PARM_DESC(qvuv, "Quantization threshold (vert. UV)"); | |
166 | module_param(lightfreq, int, 0); | |
167 | MODULE_PARM_DESC(lightfreq, | |
168 | "Light frequency. Set to 50 or 60 Hz, or zero for default settings"); | |
169 | module_param(bandingfilter, int, 0); | |
170 | MODULE_PARM_DESC(bandingfilter, | |
171 | "Enable banding filter (to reduce effects of fluorescent lighting)"); | |
172 | module_param(clockdiv, int, 0); | |
173 | MODULE_PARM_DESC(clockdiv, "Force pixel clock divisor to a specific value"); | |
174 | module_param(packetsize, int, 0); | |
175 | MODULE_PARM_DESC(packetsize, "Force a specific isoc packet size"); | |
176 | module_param(framedrop, int, 0); | |
177 | MODULE_PARM_DESC(framedrop, "Force a specific frame drop register setting"); | |
178 | module_param(fastset, int, 0); | |
179 | MODULE_PARM_DESC(fastset, "Allows picture settings to take effect immediately"); | |
180 | module_param(force_palette, int, 0); | |
181 | MODULE_PARM_DESC(force_palette, "Force the palette to a specific value"); | |
182 | module_param(backlight, int, 0); | |
183 | MODULE_PARM_DESC(backlight, "For objects that are lit from behind"); | |
184 | static int num_uv; | |
185 | module_param_array(unit_video, int, &num_uv, 0); | |
186 | MODULE_PARM_DESC(unit_video, | |
187 | "Force use of specific minor number(s). 0 is not allowed."); | |
188 | module_param(remove_zeros, int, 0); | |
189 | MODULE_PARM_DESC(remove_zeros, | |
190 | "Remove zero-padding from uncompressed incoming data"); | |
191 | module_param(mirror, int, 0); | |
192 | MODULE_PARM_DESC(mirror, "Reverse image horizontally"); | |
193 | module_param(ov518_color, int, 0); | |
194 | MODULE_PARM_DESC(ov518_color, "Enable OV518 color (experimental)"); | |
195 | ||
196 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
197 | MODULE_DESCRIPTION(DRIVER_DESC); | |
198 | MODULE_LICENSE("GPL"); | |
199 | ||
200 | /********************************************************************** | |
201 | * Miscellaneous Globals | |
202 | **********************************************************************/ | |
203 | ||
204 | static struct usb_driver ov511_driver; | |
205 | ||
1da177e4 LT |
206 | /* Number of times to retry a failed I2C transaction. Increase this if you |
207 | * are getting "Failed to read sensor ID..." */ | |
4c4c9432 | 208 | static const int i2c_detect_tries = 5; |
1da177e4 | 209 | |
1da177e4 LT |
210 | static struct usb_device_id device_table [] = { |
211 | { USB_DEVICE(VEND_OMNIVISION, PROD_OV511) }, | |
212 | { USB_DEVICE(VEND_OMNIVISION, PROD_OV511PLUS) }, | |
213 | { USB_DEVICE(VEND_OMNIVISION, PROD_OV518) }, | |
214 | { USB_DEVICE(VEND_OMNIVISION, PROD_OV518PLUS) }, | |
215 | { USB_DEVICE(VEND_MATTEL, PROD_ME2CAM) }, | |
216 | { } /* Terminating entry */ | |
217 | }; | |
218 | ||
219 | MODULE_DEVICE_TABLE (usb, device_table); | |
220 | ||
221 | static unsigned char yQuanTable511[] = OV511_YQUANTABLE; | |
222 | static unsigned char uvQuanTable511[] = OV511_UVQUANTABLE; | |
223 | static unsigned char yQuanTable518[] = OV518_YQUANTABLE; | |
224 | static unsigned char uvQuanTable518[] = OV518_UVQUANTABLE; | |
225 | ||
226 | /********************************************************************** | |
227 | * Symbolic Names | |
228 | **********************************************************************/ | |
229 | ||
230 | /* Known OV511-based cameras */ | |
231 | static struct symbolic_list camlist[] = { | |
232 | { 0, "Generic Camera (no ID)" }, | |
233 | { 1, "Mustek WCam 3X" }, | |
234 | { 3, "D-Link DSB-C300" }, | |
235 | { 4, "Generic OV511/OV7610" }, | |
236 | { 5, "Puretek PT-6007" }, | |
237 | { 6, "Lifeview USB Life TV (NTSC)" }, | |
238 | { 21, "Creative Labs WebCam 3" }, | |
239 | { 22, "Lifeview USB Life TV (PAL D/K+B/G)" }, | |
240 | { 36, "Koala-Cam" }, | |
241 | { 38, "Lifeview USB Life TV (PAL)" }, | |
242 | { 41, "Samsung Anycam MPC-M10" }, | |
243 | { 43, "Mtekvision Zeca MV402" }, | |
244 | { 46, "Suma eON" }, | |
245 | { 70, "Lifeview USB Life TV (PAL/SECAM)" }, | |
246 | { 100, "Lifeview RoboCam" }, | |
247 | { 102, "AverMedia InterCam Elite" }, | |
248 | { 112, "MediaForte MV300" }, /* or OV7110 evaluation kit */ | |
249 | { 134, "Ezonics EZCam II" }, | |
250 | { 192, "Webeye 2000B" }, | |
251 | { 253, "Alpha Vision Tech. AlphaCam SE" }, | |
252 | { -1, NULL } | |
253 | }; | |
254 | ||
255 | /* Video4Linux1 Palettes */ | |
256 | static struct symbolic_list v4l1_plist[] = { | |
257 | { VIDEO_PALETTE_GREY, "GREY" }, | |
258 | { VIDEO_PALETTE_HI240, "HI240" }, | |
259 | { VIDEO_PALETTE_RGB565, "RGB565" }, | |
260 | { VIDEO_PALETTE_RGB24, "RGB24" }, | |
261 | { VIDEO_PALETTE_RGB32, "RGB32" }, | |
262 | { VIDEO_PALETTE_RGB555, "RGB555" }, | |
263 | { VIDEO_PALETTE_YUV422, "YUV422" }, | |
264 | { VIDEO_PALETTE_YUYV, "YUYV" }, | |
265 | { VIDEO_PALETTE_UYVY, "UYVY" }, | |
266 | { VIDEO_PALETTE_YUV420, "YUV420" }, | |
267 | { VIDEO_PALETTE_YUV411, "YUV411" }, | |
268 | { VIDEO_PALETTE_RAW, "RAW" }, | |
269 | { VIDEO_PALETTE_YUV422P,"YUV422P" }, | |
270 | { VIDEO_PALETTE_YUV411P,"YUV411P" }, | |
271 | { VIDEO_PALETTE_YUV420P,"YUV420P" }, | |
272 | { VIDEO_PALETTE_YUV410P,"YUV410P" }, | |
273 | { -1, NULL } | |
274 | }; | |
275 | ||
276 | static struct symbolic_list brglist[] = { | |
277 | { BRG_OV511, "OV511" }, | |
278 | { BRG_OV511PLUS, "OV511+" }, | |
279 | { BRG_OV518, "OV518" }, | |
280 | { BRG_OV518PLUS, "OV518+" }, | |
281 | { -1, NULL } | |
282 | }; | |
283 | ||
284 | static struct symbolic_list senlist[] = { | |
285 | { SEN_OV76BE, "OV76BE" }, | |
286 | { SEN_OV7610, "OV7610" }, | |
287 | { SEN_OV7620, "OV7620" }, | |
288 | { SEN_OV7620AE, "OV7620AE" }, | |
289 | { SEN_OV6620, "OV6620" }, | |
290 | { SEN_OV6630, "OV6630" }, | |
291 | { SEN_OV6630AE, "OV6630AE" }, | |
292 | { SEN_OV6630AF, "OV6630AF" }, | |
293 | { SEN_OV8600, "OV8600" }, | |
294 | { SEN_KS0127, "KS0127" }, | |
295 | { SEN_KS0127B, "KS0127B" }, | |
296 | { SEN_SAA7111A, "SAA7111A" }, | |
297 | { -1, NULL } | |
298 | }; | |
299 | ||
300 | /* URB error codes: */ | |
301 | static struct symbolic_list urb_errlist[] = { | |
302 | { -ENOSR, "Buffer error (overrun)" }, | |
303 | { -EPIPE, "Stalled (device not responding)" }, | |
38e2bfc9 | 304 | { -EOVERFLOW, "Babble (device sends too much data)" }, |
1da177e4 | 305 | { -EPROTO, "Bit-stuff error (bad cable?)" }, |
38e2bfc9 PZ |
306 | { -EILSEQ, "CRC/Timeout (bad cable?)" }, |
307 | { -ETIME, "Device does not respond to token" }, | |
308 | { -ETIMEDOUT, "Device does not respond to command" }, | |
1da177e4 LT |
309 | { -1, NULL } |
310 | }; | |
311 | ||
312 | /********************************************************************** | |
313 | * Memory management | |
314 | **********************************************************************/ | |
315 | static void * | |
316 | rvmalloc(unsigned long size) | |
317 | { | |
318 | void *mem; | |
319 | unsigned long adr; | |
320 | ||
321 | size = PAGE_ALIGN(size); | |
322 | mem = vmalloc_32(size); | |
323 | if (!mem) | |
324 | return NULL; | |
325 | ||
326 | memset(mem, 0, size); /* Clear the ram out, no junk to the user */ | |
327 | adr = (unsigned long) mem; | |
328 | while (size > 0) { | |
329 | SetPageReserved(vmalloc_to_page((void *)adr)); | |
330 | adr += PAGE_SIZE; | |
331 | size -= PAGE_SIZE; | |
332 | } | |
333 | ||
334 | return mem; | |
335 | } | |
336 | ||
337 | static void | |
338 | rvfree(void *mem, unsigned long size) | |
339 | { | |
340 | unsigned long adr; | |
341 | ||
342 | if (!mem) | |
343 | return; | |
344 | ||
345 | adr = (unsigned long) mem; | |
346 | while ((long) size > 0) { | |
347 | ClearPageReserved(vmalloc_to_page((void *)adr)); | |
348 | adr += PAGE_SIZE; | |
349 | size -= PAGE_SIZE; | |
350 | } | |
351 | vfree(mem); | |
352 | } | |
353 | ||
354 | /********************************************************************** | |
355 | * | |
356 | * Register I/O | |
357 | * | |
358 | **********************************************************************/ | |
359 | ||
360 | /* Write an OV51x register */ | |
361 | static int | |
362 | reg_w(struct usb_ov511 *ov, unsigned char reg, unsigned char value) | |
363 | { | |
364 | int rc; | |
365 | ||
366 | PDEBUG(5, "0x%02X:0x%02X", reg, value); | |
367 | ||
4186ecf8 | 368 | mutex_lock(&ov->cbuf_lock); |
1da177e4 LT |
369 | ov->cbuf[0] = value; |
370 | rc = usb_control_msg(ov->dev, | |
371 | usb_sndctrlpipe(ov->dev, 0), | |
372 | (ov->bclass == BCL_OV518)?1:2 /* REG_IO */, | |
373 | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
374 | 0, (__u16)reg, &ov->cbuf[0], 1, 1000); | |
4186ecf8 | 375 | mutex_unlock(&ov->cbuf_lock); |
1da177e4 LT |
376 | |
377 | if (rc < 0) | |
378 | err("reg write: error %d: %s", rc, symbolic(urb_errlist, rc)); | |
379 | ||
380 | return rc; | |
381 | } | |
382 | ||
383 | /* Read from an OV51x register */ | |
384 | /* returns: negative is error, pos or zero is data */ | |
385 | static int | |
386 | reg_r(struct usb_ov511 *ov, unsigned char reg) | |
387 | { | |
388 | int rc; | |
389 | ||
4186ecf8 | 390 | mutex_lock(&ov->cbuf_lock); |
1da177e4 LT |
391 | rc = usb_control_msg(ov->dev, |
392 | usb_rcvctrlpipe(ov->dev, 0), | |
393 | (ov->bclass == BCL_OV518)?1:3 /* REG_IO */, | |
394 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
395 | 0, (__u16)reg, &ov->cbuf[0], 1, 1000); | |
396 | ||
397 | if (rc < 0) { | |
398 | err("reg read: error %d: %s", rc, symbolic(urb_errlist, rc)); | |
399 | } else { | |
400 | rc = ov->cbuf[0]; | |
401 | PDEBUG(5, "0x%02X:0x%02X", reg, ov->cbuf[0]); | |
402 | } | |
403 | ||
4186ecf8 | 404 | mutex_unlock(&ov->cbuf_lock); |
1da177e4 LT |
405 | |
406 | return rc; | |
407 | } | |
408 | ||
409 | /* | |
410 | * Writes bits at positions specified by mask to an OV51x reg. Bits that are in | |
411 | * the same position as 1's in "mask" are cleared and set to "value". Bits | |
412 | * that are in the same position as 0's in "mask" are preserved, regardless | |
413 | * of their respective state in "value". | |
414 | */ | |
415 | static int | |
416 | reg_w_mask(struct usb_ov511 *ov, | |
417 | unsigned char reg, | |
418 | unsigned char value, | |
419 | unsigned char mask) | |
420 | { | |
421 | int ret; | |
422 | unsigned char oldval, newval; | |
423 | ||
424 | ret = reg_r(ov, reg); | |
425 | if (ret < 0) | |
426 | return ret; | |
427 | ||
428 | oldval = (unsigned char) ret; | |
429 | oldval &= (~mask); /* Clear the masked bits */ | |
430 | value &= mask; /* Enforce mask on value */ | |
431 | newval = oldval | value; /* Set the desired bits */ | |
432 | ||
433 | return (reg_w(ov, reg, newval)); | |
434 | } | |
435 | ||
d56410e0 | 436 | /* |
1da177e4 LT |
437 | * Writes multiple (n) byte value to a single register. Only valid with certain |
438 | * registers (0x30 and 0xc4 - 0xce). | |
439 | */ | |
440 | static int | |
441 | ov518_reg_w32(struct usb_ov511 *ov, unsigned char reg, u32 val, int n) | |
442 | { | |
443 | int rc; | |
444 | ||
445 | PDEBUG(5, "0x%02X:%7d, n=%d", reg, val, n); | |
446 | ||
4186ecf8 | 447 | mutex_lock(&ov->cbuf_lock); |
1da177e4 LT |
448 | |
449 | *((__le32 *)ov->cbuf) = __cpu_to_le32(val); | |
450 | ||
451 | rc = usb_control_msg(ov->dev, | |
452 | usb_sndctrlpipe(ov->dev, 0), | |
453 | 1 /* REG_IO */, | |
454 | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
455 | 0, (__u16)reg, ov->cbuf, n, 1000); | |
4186ecf8 | 456 | mutex_unlock(&ov->cbuf_lock); |
1da177e4 LT |
457 | |
458 | if (rc < 0) | |
459 | err("reg write multiple: error %d: %s", rc, | |
460 | symbolic(urb_errlist, rc)); | |
461 | ||
462 | return rc; | |
463 | } | |
464 | ||
465 | static int | |
466 | ov511_upload_quan_tables(struct usb_ov511 *ov) | |
467 | { | |
468 | unsigned char *pYTable = yQuanTable511; | |
469 | unsigned char *pUVTable = uvQuanTable511; | |
470 | unsigned char val0, val1; | |
471 | int i, rc, reg = R511_COMP_LUT_BEGIN; | |
472 | ||
473 | PDEBUG(4, "Uploading quantization tables"); | |
474 | ||
475 | for (i = 0; i < OV511_QUANTABLESIZE / 2; i++) { | |
476 | if (ENABLE_Y_QUANTABLE) { | |
477 | val0 = *pYTable++; | |
478 | val1 = *pYTable++; | |
479 | val0 &= 0x0f; | |
480 | val1 &= 0x0f; | |
481 | val0 |= val1 << 4; | |
482 | rc = reg_w(ov, reg, val0); | |
483 | if (rc < 0) | |
484 | return rc; | |
485 | } | |
486 | ||
487 | if (ENABLE_UV_QUANTABLE) { | |
488 | val0 = *pUVTable++; | |
489 | val1 = *pUVTable++; | |
490 | val0 &= 0x0f; | |
491 | val1 &= 0x0f; | |
492 | val0 |= val1 << 4; | |
493 | rc = reg_w(ov, reg + OV511_QUANTABLESIZE/2, val0); | |
494 | if (rc < 0) | |
495 | return rc; | |
496 | } | |
497 | ||
498 | reg++; | |
499 | } | |
500 | ||
501 | return 0; | |
502 | } | |
503 | ||
504 | /* OV518 quantization tables are 8x4 (instead of 8x8) */ | |
505 | static int | |
506 | ov518_upload_quan_tables(struct usb_ov511 *ov) | |
507 | { | |
508 | unsigned char *pYTable = yQuanTable518; | |
509 | unsigned char *pUVTable = uvQuanTable518; | |
510 | unsigned char val0, val1; | |
511 | int i, rc, reg = R511_COMP_LUT_BEGIN; | |
512 | ||
513 | PDEBUG(4, "Uploading quantization tables"); | |
514 | ||
515 | for (i = 0; i < OV518_QUANTABLESIZE / 2; i++) { | |
516 | if (ENABLE_Y_QUANTABLE) { | |
517 | val0 = *pYTable++; | |
518 | val1 = *pYTable++; | |
519 | val0 &= 0x0f; | |
520 | val1 &= 0x0f; | |
521 | val0 |= val1 << 4; | |
522 | rc = reg_w(ov, reg, val0); | |
523 | if (rc < 0) | |
524 | return rc; | |
525 | } | |
526 | ||
527 | if (ENABLE_UV_QUANTABLE) { | |
528 | val0 = *pUVTable++; | |
529 | val1 = *pUVTable++; | |
530 | val0 &= 0x0f; | |
531 | val1 &= 0x0f; | |
532 | val0 |= val1 << 4; | |
533 | rc = reg_w(ov, reg + OV518_QUANTABLESIZE/2, val0); | |
534 | if (rc < 0) | |
535 | return rc; | |
536 | } | |
537 | ||
538 | reg++; | |
539 | } | |
540 | ||
541 | return 0; | |
542 | } | |
543 | ||
544 | static int | |
545 | ov51x_reset(struct usb_ov511 *ov, unsigned char reset_type) | |
546 | { | |
547 | int rc; | |
548 | ||
549 | /* Setting bit 0 not allowed on 518/518Plus */ | |
550 | if (ov->bclass == BCL_OV518) | |
551 | reset_type &= 0xfe; | |
552 | ||
553 | PDEBUG(4, "Reset: type=0x%02X", reset_type); | |
554 | ||
555 | rc = reg_w(ov, R51x_SYS_RESET, reset_type); | |
556 | rc = reg_w(ov, R51x_SYS_RESET, 0); | |
557 | ||
558 | if (rc < 0) | |
559 | err("reset: command failed"); | |
560 | ||
561 | return rc; | |
562 | } | |
563 | ||
564 | /********************************************************************** | |
565 | * | |
566 | * Low-level I2C I/O functions | |
567 | * | |
568 | **********************************************************************/ | |
569 | ||
570 | /* NOTE: Do not call this function directly! | |
571 | * The OV518 I2C I/O procedure is different, hence, this function. | |
572 | * This is normally only called from i2c_w(). Note that this function | |
573 | * always succeeds regardless of whether the sensor is present and working. | |
574 | */ | |
575 | static int | |
576 | ov518_i2c_write_internal(struct usb_ov511 *ov, | |
577 | unsigned char reg, | |
578 | unsigned char value) | |
579 | { | |
580 | int rc; | |
581 | ||
582 | PDEBUG(5, "0x%02X:0x%02X", reg, value); | |
583 | ||
584 | /* Select camera register */ | |
585 | rc = reg_w(ov, R51x_I2C_SADDR_3, reg); | |
586 | if (rc < 0) | |
587 | return rc; | |
588 | ||
589 | /* Write "value" to I2C data port of OV511 */ | |
590 | rc = reg_w(ov, R51x_I2C_DATA, value); | |
591 | if (rc < 0) | |
592 | return rc; | |
593 | ||
594 | /* Initiate 3-byte write cycle */ | |
595 | rc = reg_w(ov, R518_I2C_CTL, 0x01); | |
596 | if (rc < 0) | |
597 | return rc; | |
598 | ||
599 | return 0; | |
600 | } | |
601 | ||
602 | /* NOTE: Do not call this function directly! */ | |
603 | static int | |
604 | ov511_i2c_write_internal(struct usb_ov511 *ov, | |
605 | unsigned char reg, | |
606 | unsigned char value) | |
607 | { | |
608 | int rc, retries; | |
609 | ||
610 | PDEBUG(5, "0x%02X:0x%02X", reg, value); | |
611 | ||
612 | /* Three byte write cycle */ | |
613 | for (retries = OV511_I2C_RETRIES; ; ) { | |
614 | /* Select camera register */ | |
615 | rc = reg_w(ov, R51x_I2C_SADDR_3, reg); | |
616 | if (rc < 0) | |
617 | break; | |
618 | ||
619 | /* Write "value" to I2C data port of OV511 */ | |
620 | rc = reg_w(ov, R51x_I2C_DATA, value); | |
621 | if (rc < 0) | |
622 | break; | |
623 | ||
624 | /* Initiate 3-byte write cycle */ | |
625 | rc = reg_w(ov, R511_I2C_CTL, 0x01); | |
626 | if (rc < 0) | |
627 | break; | |
628 | ||
629 | /* Retry until idle */ | |
630 | do | |
631 | rc = reg_r(ov, R511_I2C_CTL); | |
d56410e0 | 632 | while (rc > 0 && ((rc&1) == 0)); |
1da177e4 LT |
633 | if (rc < 0) |
634 | break; | |
635 | ||
636 | /* Ack? */ | |
637 | if ((rc&2) == 0) { | |
638 | rc = 0; | |
639 | break; | |
640 | } | |
641 | #if 0 | |
642 | /* I2C abort */ | |
643 | reg_w(ov, R511_I2C_CTL, 0x10); | |
644 | #endif | |
645 | if (--retries < 0) { | |
646 | err("i2c write retries exhausted"); | |
647 | rc = -1; | |
648 | break; | |
649 | } | |
650 | } | |
651 | ||
652 | return rc; | |
653 | } | |
654 | ||
655 | /* NOTE: Do not call this function directly! | |
656 | * The OV518 I2C I/O procedure is different, hence, this function. | |
657 | * This is normally only called from i2c_r(). Note that this function | |
658 | * always succeeds regardless of whether the sensor is present and working. | |
659 | */ | |
660 | static int | |
661 | ov518_i2c_read_internal(struct usb_ov511 *ov, unsigned char reg) | |
662 | { | |
663 | int rc, value; | |
664 | ||
665 | /* Select camera register */ | |
666 | rc = reg_w(ov, R51x_I2C_SADDR_2, reg); | |
667 | if (rc < 0) | |
668 | return rc; | |
669 | ||
670 | /* Initiate 2-byte write cycle */ | |
671 | rc = reg_w(ov, R518_I2C_CTL, 0x03); | |
672 | if (rc < 0) | |
673 | return rc; | |
674 | ||
675 | /* Initiate 2-byte read cycle */ | |
676 | rc = reg_w(ov, R518_I2C_CTL, 0x05); | |
677 | if (rc < 0) | |
678 | return rc; | |
679 | ||
680 | value = reg_r(ov, R51x_I2C_DATA); | |
681 | ||
682 | PDEBUG(5, "0x%02X:0x%02X", reg, value); | |
683 | ||
684 | return value; | |
685 | } | |
686 | ||
687 | /* NOTE: Do not call this function directly! | |
688 | * returns: negative is error, pos or zero is data */ | |
689 | static int | |
690 | ov511_i2c_read_internal(struct usb_ov511 *ov, unsigned char reg) | |
691 | { | |
692 | int rc, value, retries; | |
693 | ||
694 | /* Two byte write cycle */ | |
695 | for (retries = OV511_I2C_RETRIES; ; ) { | |
696 | /* Select camera register */ | |
697 | rc = reg_w(ov, R51x_I2C_SADDR_2, reg); | |
698 | if (rc < 0) | |
699 | return rc; | |
700 | ||
701 | /* Initiate 2-byte write cycle */ | |
702 | rc = reg_w(ov, R511_I2C_CTL, 0x03); | |
703 | if (rc < 0) | |
704 | return rc; | |
705 | ||
706 | /* Retry until idle */ | |
707 | do | |
708 | rc = reg_r(ov, R511_I2C_CTL); | |
709 | while (rc > 0 && ((rc&1) == 0)); | |
710 | if (rc < 0) | |
711 | return rc; | |
712 | ||
713 | if ((rc&2) == 0) /* Ack? */ | |
714 | break; | |
715 | ||
716 | /* I2C abort */ | |
717 | reg_w(ov, R511_I2C_CTL, 0x10); | |
718 | ||
719 | if (--retries < 0) { | |
720 | err("i2c write retries exhausted"); | |
721 | return -1; | |
722 | } | |
723 | } | |
724 | ||
725 | /* Two byte read cycle */ | |
726 | for (retries = OV511_I2C_RETRIES; ; ) { | |
727 | /* Initiate 2-byte read cycle */ | |
728 | rc = reg_w(ov, R511_I2C_CTL, 0x05); | |
729 | if (rc < 0) | |
730 | return rc; | |
731 | ||
732 | /* Retry until idle */ | |
733 | do | |
734 | rc = reg_r(ov, R511_I2C_CTL); | |
735 | while (rc > 0 && ((rc&1) == 0)); | |
736 | if (rc < 0) | |
737 | return rc; | |
738 | ||
739 | if ((rc&2) == 0) /* Ack? */ | |
740 | break; | |
741 | ||
742 | /* I2C abort */ | |
743 | rc = reg_w(ov, R511_I2C_CTL, 0x10); | |
744 | if (rc < 0) | |
745 | return rc; | |
746 | ||
747 | if (--retries < 0) { | |
748 | err("i2c read retries exhausted"); | |
749 | return -1; | |
750 | } | |
751 | } | |
752 | ||
753 | value = reg_r(ov, R51x_I2C_DATA); | |
754 | ||
755 | PDEBUG(5, "0x%02X:0x%02X", reg, value); | |
756 | ||
757 | /* This is needed to make i2c_w() work */ | |
758 | rc = reg_w(ov, R511_I2C_CTL, 0x05); | |
759 | if (rc < 0) | |
760 | return rc; | |
761 | ||
762 | return value; | |
763 | } | |
764 | ||
765 | /* returns: negative is error, pos or zero is data */ | |
766 | static int | |
767 | i2c_r(struct usb_ov511 *ov, unsigned char reg) | |
768 | { | |
769 | int rc; | |
770 | ||
4186ecf8 | 771 | mutex_lock(&ov->i2c_lock); |
1da177e4 LT |
772 | |
773 | if (ov->bclass == BCL_OV518) | |
774 | rc = ov518_i2c_read_internal(ov, reg); | |
775 | else | |
776 | rc = ov511_i2c_read_internal(ov, reg); | |
777 | ||
4186ecf8 | 778 | mutex_unlock(&ov->i2c_lock); |
1da177e4 LT |
779 | |
780 | return rc; | |
781 | } | |
782 | ||
783 | static int | |
784 | i2c_w(struct usb_ov511 *ov, unsigned char reg, unsigned char value) | |
785 | { | |
786 | int rc; | |
787 | ||
4186ecf8 | 788 | mutex_lock(&ov->i2c_lock); |
1da177e4 LT |
789 | |
790 | if (ov->bclass == BCL_OV518) | |
791 | rc = ov518_i2c_write_internal(ov, reg, value); | |
792 | else | |
793 | rc = ov511_i2c_write_internal(ov, reg, value); | |
794 | ||
4186ecf8 | 795 | mutex_unlock(&ov->i2c_lock); |
1da177e4 LT |
796 | |
797 | return rc; | |
798 | } | |
799 | ||
800 | /* Do not call this function directly! */ | |
801 | static int | |
802 | ov51x_i2c_write_mask_internal(struct usb_ov511 *ov, | |
803 | unsigned char reg, | |
804 | unsigned char value, | |
805 | unsigned char mask) | |
806 | { | |
807 | int rc; | |
808 | unsigned char oldval, newval; | |
809 | ||
810 | if (mask == 0xff) { | |
811 | newval = value; | |
812 | } else { | |
813 | if (ov->bclass == BCL_OV518) | |
814 | rc = ov518_i2c_read_internal(ov, reg); | |
815 | else | |
816 | rc = ov511_i2c_read_internal(ov, reg); | |
817 | if (rc < 0) | |
818 | return rc; | |
819 | ||
820 | oldval = (unsigned char) rc; | |
821 | oldval &= (~mask); /* Clear the masked bits */ | |
822 | value &= mask; /* Enforce mask on value */ | |
823 | newval = oldval | value; /* Set the desired bits */ | |
824 | } | |
825 | ||
826 | if (ov->bclass == BCL_OV518) | |
827 | return (ov518_i2c_write_internal(ov, reg, newval)); | |
828 | else | |
829 | return (ov511_i2c_write_internal(ov, reg, newval)); | |
830 | } | |
831 | ||
832 | /* Writes bits at positions specified by mask to an I2C reg. Bits that are in | |
833 | * the same position as 1's in "mask" are cleared and set to "value". Bits | |
834 | * that are in the same position as 0's in "mask" are preserved, regardless | |
835 | * of their respective state in "value". | |
836 | */ | |
837 | static int | |
838 | i2c_w_mask(struct usb_ov511 *ov, | |
839 | unsigned char reg, | |
840 | unsigned char value, | |
841 | unsigned char mask) | |
842 | { | |
843 | int rc; | |
844 | ||
4186ecf8 | 845 | mutex_lock(&ov->i2c_lock); |
1da177e4 | 846 | rc = ov51x_i2c_write_mask_internal(ov, reg, value, mask); |
4186ecf8 | 847 | mutex_unlock(&ov->i2c_lock); |
1da177e4 LT |
848 | |
849 | return rc; | |
850 | } | |
851 | ||
852 | /* Set the read and write slave IDs. The "slave" argument is the write slave, | |
853 | * and the read slave will be set to (slave + 1). ov->i2c_lock should be held | |
854 | * when calling this. This should not be called from outside the i2c I/O | |
855 | * functions. | |
856 | */ | |
857 | static int | |
858 | i2c_set_slave_internal(struct usb_ov511 *ov, unsigned char slave) | |
859 | { | |
860 | int rc; | |
861 | ||
862 | rc = reg_w(ov, R51x_I2C_W_SID, slave); | |
863 | if (rc < 0) | |
864 | return rc; | |
865 | ||
866 | rc = reg_w(ov, R51x_I2C_R_SID, slave + 1); | |
867 | if (rc < 0) | |
868 | return rc; | |
869 | ||
870 | return 0; | |
871 | } | |
872 | ||
873 | /* Write to a specific I2C slave ID and register, using the specified mask */ | |
874 | static int | |
875 | i2c_w_slave(struct usb_ov511 *ov, | |
876 | unsigned char slave, | |
877 | unsigned char reg, | |
878 | unsigned char value, | |
879 | unsigned char mask) | |
880 | { | |
881 | int rc = 0; | |
882 | ||
4186ecf8 | 883 | mutex_lock(&ov->i2c_lock); |
1da177e4 LT |
884 | |
885 | /* Set new slave IDs */ | |
886 | rc = i2c_set_slave_internal(ov, slave); | |
887 | if (rc < 0) | |
888 | goto out; | |
889 | ||
890 | rc = ov51x_i2c_write_mask_internal(ov, reg, value, mask); | |
891 | ||
892 | out: | |
893 | /* Restore primary IDs */ | |
894 | if (i2c_set_slave_internal(ov, ov->primary_i2c_slave) < 0) | |
895 | err("Couldn't restore primary I2C slave"); | |
896 | ||
4186ecf8 | 897 | mutex_unlock(&ov->i2c_lock); |
1da177e4 LT |
898 | return rc; |
899 | } | |
900 | ||
901 | /* Read from a specific I2C slave ID and register */ | |
902 | static int | |
903 | i2c_r_slave(struct usb_ov511 *ov, | |
904 | unsigned char slave, | |
905 | unsigned char reg) | |
906 | { | |
907 | int rc; | |
908 | ||
4186ecf8 | 909 | mutex_lock(&ov->i2c_lock); |
1da177e4 LT |
910 | |
911 | /* Set new slave IDs */ | |
912 | rc = i2c_set_slave_internal(ov, slave); | |
913 | if (rc < 0) | |
914 | goto out; | |
915 | ||
916 | if (ov->bclass == BCL_OV518) | |
917 | rc = ov518_i2c_read_internal(ov, reg); | |
918 | else | |
919 | rc = ov511_i2c_read_internal(ov, reg); | |
920 | ||
921 | out: | |
922 | /* Restore primary IDs */ | |
923 | if (i2c_set_slave_internal(ov, ov->primary_i2c_slave) < 0) | |
924 | err("Couldn't restore primary I2C slave"); | |
925 | ||
4186ecf8 | 926 | mutex_unlock(&ov->i2c_lock); |
1da177e4 LT |
927 | return rc; |
928 | } | |
929 | ||
930 | /* Sets I2C read and write slave IDs. Returns <0 for error */ | |
931 | static int | |
932 | ov51x_set_slave_ids(struct usb_ov511 *ov, unsigned char sid) | |
933 | { | |
934 | int rc; | |
935 | ||
4186ecf8 | 936 | mutex_lock(&ov->i2c_lock); |
1da177e4 LT |
937 | |
938 | rc = i2c_set_slave_internal(ov, sid); | |
939 | if (rc < 0) | |
940 | goto out; | |
941 | ||
942 | // FIXME: Is this actually necessary? | |
943 | rc = ov51x_reset(ov, OV511_RESET_NOREGS); | |
944 | out: | |
4186ecf8 | 945 | mutex_unlock(&ov->i2c_lock); |
1da177e4 LT |
946 | return rc; |
947 | } | |
948 | ||
949 | static int | |
950 | write_regvals(struct usb_ov511 *ov, struct ov511_regvals * pRegvals) | |
951 | { | |
952 | int rc; | |
953 | ||
954 | while (pRegvals->bus != OV511_DONE_BUS) { | |
955 | if (pRegvals->bus == OV511_REG_BUS) { | |
956 | if ((rc = reg_w(ov, pRegvals->reg, pRegvals->val)) < 0) | |
957 | return rc; | |
958 | } else if (pRegvals->bus == OV511_I2C_BUS) { | |
959 | if ((rc = i2c_w(ov, pRegvals->reg, pRegvals->val)) < 0) | |
960 | return rc; | |
961 | } else { | |
962 | err("Bad regval array"); | |
963 | return -1; | |
964 | } | |
965 | pRegvals++; | |
966 | } | |
967 | return 0; | |
968 | } | |
969 | ||
970 | #ifdef OV511_DEBUG | |
971 | static void | |
972 | dump_i2c_range(struct usb_ov511 *ov, int reg1, int regn) | |
973 | { | |
974 | int i, rc; | |
975 | ||
976 | for (i = reg1; i <= regn; i++) { | |
977 | rc = i2c_r(ov, i); | |
978 | info("Sensor[0x%02X] = 0x%02X", i, rc); | |
979 | } | |
980 | } | |
981 | ||
982 | static void | |
983 | dump_i2c_regs(struct usb_ov511 *ov) | |
984 | { | |
985 | info("I2C REGS"); | |
986 | dump_i2c_range(ov, 0x00, 0x7C); | |
987 | } | |
988 | ||
989 | static void | |
990 | dump_reg_range(struct usb_ov511 *ov, int reg1, int regn) | |
991 | { | |
992 | int i, rc; | |
993 | ||
994 | for (i = reg1; i <= regn; i++) { | |
995 | rc = reg_r(ov, i); | |
996 | info("OV511[0x%02X] = 0x%02X", i, rc); | |
997 | } | |
998 | } | |
999 | ||
1000 | static void | |
1001 | ov511_dump_regs(struct usb_ov511 *ov) | |
1002 | { | |
1003 | info("CAMERA INTERFACE REGS"); | |
1004 | dump_reg_range(ov, 0x10, 0x1f); | |
1005 | info("DRAM INTERFACE REGS"); | |
1006 | dump_reg_range(ov, 0x20, 0x23); | |
1007 | info("ISO FIFO REGS"); | |
1008 | dump_reg_range(ov, 0x30, 0x31); | |
1009 | info("PIO REGS"); | |
1010 | dump_reg_range(ov, 0x38, 0x39); | |
1011 | dump_reg_range(ov, 0x3e, 0x3e); | |
1012 | info("I2C REGS"); | |
1013 | dump_reg_range(ov, 0x40, 0x49); | |
1014 | info("SYSTEM CONTROL REGS"); | |
1015 | dump_reg_range(ov, 0x50, 0x55); | |
1016 | dump_reg_range(ov, 0x5e, 0x5f); | |
1017 | info("OmniCE REGS"); | |
1018 | dump_reg_range(ov, 0x70, 0x79); | |
1019 | /* NOTE: Quantization tables are not readable. You will get the value | |
1020 | * in reg. 0x79 for every table register */ | |
1021 | dump_reg_range(ov, 0x80, 0x9f); | |
1022 | dump_reg_range(ov, 0xa0, 0xbf); | |
1023 | ||
1024 | } | |
1025 | ||
1026 | static void | |
1027 | ov518_dump_regs(struct usb_ov511 *ov) | |
1028 | { | |
1029 | info("VIDEO MODE REGS"); | |
1030 | dump_reg_range(ov, 0x20, 0x2f); | |
1031 | info("DATA PUMP AND SNAPSHOT REGS"); | |
1032 | dump_reg_range(ov, 0x30, 0x3f); | |
1033 | info("I2C REGS"); | |
1034 | dump_reg_range(ov, 0x40, 0x4f); | |
1035 | info("SYSTEM CONTROL AND VENDOR REGS"); | |
1036 | dump_reg_range(ov, 0x50, 0x5f); | |
1037 | info("60 - 6F"); | |
1038 | dump_reg_range(ov, 0x60, 0x6f); | |
1039 | info("70 - 7F"); | |
1040 | dump_reg_range(ov, 0x70, 0x7f); | |
1041 | info("Y QUANTIZATION TABLE"); | |
1042 | dump_reg_range(ov, 0x80, 0x8f); | |
1043 | info("UV QUANTIZATION TABLE"); | |
1044 | dump_reg_range(ov, 0x90, 0x9f); | |
1045 | info("A0 - BF"); | |
1046 | dump_reg_range(ov, 0xa0, 0xbf); | |
1047 | info("CBR"); | |
1048 | dump_reg_range(ov, 0xc0, 0xcf); | |
1049 | } | |
1050 | #endif | |
1051 | ||
1052 | /*****************************************************************************/ | |
1053 | ||
1054 | /* Temporarily stops OV511 from functioning. Must do this before changing | |
1055 | * registers while the camera is streaming */ | |
1056 | static inline int | |
1057 | ov51x_stop(struct usb_ov511 *ov) | |
1058 | { | |
1059 | PDEBUG(4, "stopping"); | |
1060 | ov->stopped = 1; | |
1061 | if (ov->bclass == BCL_OV518) | |
1062 | return (reg_w_mask(ov, R51x_SYS_RESET, 0x3a, 0x3a)); | |
1063 | else | |
1064 | return (reg_w(ov, R51x_SYS_RESET, 0x3d)); | |
1065 | } | |
1066 | ||
1067 | /* Restarts OV511 after ov511_stop() is called. Has no effect if it is not | |
1068 | * actually stopped (for performance). */ | |
1069 | static inline int | |
1070 | ov51x_restart(struct usb_ov511 *ov) | |
1071 | { | |
1072 | if (ov->stopped) { | |
1073 | PDEBUG(4, "restarting"); | |
1074 | ov->stopped = 0; | |
1075 | ||
1076 | /* Reinitialize the stream */ | |
1077 | if (ov->bclass == BCL_OV518) | |
1078 | reg_w(ov, 0x2f, 0x80); | |
1079 | ||
1080 | return (reg_w(ov, R51x_SYS_RESET, 0x00)); | |
1081 | } | |
1082 | ||
1083 | return 0; | |
1084 | } | |
1085 | ||
1086 | /* Sleeps until no frames are active. Returns !0 if got signal */ | |
1087 | static int | |
1088 | ov51x_wait_frames_inactive(struct usb_ov511 *ov) | |
1089 | { | |
1090 | return wait_event_interruptible(ov->wq, ov->curframe < 0); | |
1091 | } | |
1092 | ||
1093 | /* Resets the hardware snapshot button */ | |
1094 | static void | |
1095 | ov51x_clear_snapshot(struct usb_ov511 *ov) | |
1096 | { | |
1097 | if (ov->bclass == BCL_OV511) { | |
1098 | reg_w(ov, R51x_SYS_SNAP, 0x00); | |
1099 | reg_w(ov, R51x_SYS_SNAP, 0x02); | |
1100 | reg_w(ov, R51x_SYS_SNAP, 0x00); | |
1101 | } else if (ov->bclass == BCL_OV518) { | |
1102 | warn("snapshot reset not supported yet on OV518(+)"); | |
1103 | } else { | |
1104 | err("clear snap: invalid bridge type"); | |
1105 | } | |
1106 | } | |
1107 | ||
1108 | #if 0 | |
1109 | /* Checks the status of the snapshot button. Returns 1 if it was pressed since | |
1110 | * it was last cleared, and zero in all other cases (including errors) */ | |
1111 | static int | |
1112 | ov51x_check_snapshot(struct usb_ov511 *ov) | |
1113 | { | |
1114 | int ret, status = 0; | |
1115 | ||
1116 | if (ov->bclass == BCL_OV511) { | |
1117 | ret = reg_r(ov, R51x_SYS_SNAP); | |
1118 | if (ret < 0) { | |
1119 | err("Error checking snspshot status (%d)", ret); | |
1120 | } else if (ret & 0x08) { | |
1121 | status = 1; | |
1122 | } | |
1123 | } else if (ov->bclass == BCL_OV518) { | |
1124 | warn("snapshot check not supported yet on OV518(+)"); | |
1125 | } else { | |
1126 | err("check snap: invalid bridge type"); | |
1127 | } | |
1128 | ||
1129 | return status; | |
1130 | } | |
1131 | #endif | |
1132 | ||
1133 | /* This does an initial reset of an OmniVision sensor and ensures that I2C | |
1134 | * is synchronized. Returns <0 for failure. | |
1135 | */ | |
1136 | static int | |
1137 | init_ov_sensor(struct usb_ov511 *ov) | |
1138 | { | |
1139 | int i, success; | |
1140 | ||
1141 | /* Reset the sensor */ | |
1142 | if (i2c_w(ov, 0x12, 0x80) < 0) | |
1143 | return -EIO; | |
1144 | ||
1145 | /* Wait for it to initialize */ | |
1146 | msleep(150); | |
1147 | ||
1148 | for (i = 0, success = 0; i < i2c_detect_tries && !success; i++) { | |
1149 | if ((i2c_r(ov, OV7610_REG_ID_HIGH) == 0x7F) && | |
1150 | (i2c_r(ov, OV7610_REG_ID_LOW) == 0xA2)) { | |
1151 | success = 1; | |
1152 | continue; | |
1153 | } | |
1154 | ||
1155 | /* Reset the sensor */ | |
1156 | if (i2c_w(ov, 0x12, 0x80) < 0) | |
1157 | return -EIO; | |
1158 | /* Wait for it to initialize */ | |
1159 | msleep(150); | |
1160 | /* Dummy read to sync I2C */ | |
1161 | if (i2c_r(ov, 0x00) < 0) | |
1162 | return -EIO; | |
1163 | } | |
1164 | ||
1165 | if (!success) | |
1166 | return -EIO; | |
1167 | ||
1168 | PDEBUG(1, "I2C synced in %d attempt(s)", i); | |
1169 | ||
1170 | return 0; | |
1171 | } | |
1172 | ||
1173 | static int | |
1174 | ov511_set_packet_size(struct usb_ov511 *ov, int size) | |
1175 | { | |
1176 | int alt, mult; | |
1177 | ||
1178 | if (ov51x_stop(ov) < 0) | |
1179 | return -EIO; | |
1180 | ||
1181 | mult = size >> 5; | |
1182 | ||
1183 | if (ov->bridge == BRG_OV511) { | |
1184 | if (size == 0) | |
1185 | alt = OV511_ALT_SIZE_0; | |
1186 | else if (size == 257) | |
1187 | alt = OV511_ALT_SIZE_257; | |
1188 | else if (size == 513) | |
1189 | alt = OV511_ALT_SIZE_513; | |
1190 | else if (size == 769) | |
1191 | alt = OV511_ALT_SIZE_769; | |
1192 | else if (size == 993) | |
1193 | alt = OV511_ALT_SIZE_993; | |
1194 | else { | |
1195 | err("Set packet size: invalid size (%d)", size); | |
1196 | return -EINVAL; | |
1197 | } | |
1198 | } else if (ov->bridge == BRG_OV511PLUS) { | |
1199 | if (size == 0) | |
1200 | alt = OV511PLUS_ALT_SIZE_0; | |
1201 | else if (size == 33) | |
1202 | alt = OV511PLUS_ALT_SIZE_33; | |
1203 | else if (size == 129) | |
1204 | alt = OV511PLUS_ALT_SIZE_129; | |
1205 | else if (size == 257) | |
1206 | alt = OV511PLUS_ALT_SIZE_257; | |
1207 | else if (size == 385) | |
1208 | alt = OV511PLUS_ALT_SIZE_385; | |
1209 | else if (size == 513) | |
1210 | alt = OV511PLUS_ALT_SIZE_513; | |
1211 | else if (size == 769) | |
1212 | alt = OV511PLUS_ALT_SIZE_769; | |
1213 | else if (size == 961) | |
1214 | alt = OV511PLUS_ALT_SIZE_961; | |
1215 | else { | |
1216 | err("Set packet size: invalid size (%d)", size); | |
1217 | return -EINVAL; | |
1218 | } | |
1219 | } else { | |
1220 | err("Set packet size: Invalid bridge type"); | |
1221 | return -EINVAL; | |
1222 | } | |
1223 | ||
1224 | PDEBUG(3, "%d, mult=%d, alt=%d", size, mult, alt); | |
1225 | ||
1226 | if (reg_w(ov, R51x_FIFO_PSIZE, mult) < 0) | |
1227 | return -EIO; | |
1228 | ||
1229 | if (usb_set_interface(ov->dev, ov->iface, alt) < 0) { | |
1230 | err("Set packet size: set interface error"); | |
1231 | return -EBUSY; | |
1232 | } | |
1233 | ||
1234 | if (ov51x_reset(ov, OV511_RESET_NOREGS) < 0) | |
1235 | return -EIO; | |
1236 | ||
1237 | ov->packet_size = size; | |
1238 | ||
1239 | if (ov51x_restart(ov) < 0) | |
1240 | return -EIO; | |
1241 | ||
1242 | return 0; | |
1243 | } | |
1244 | ||
1245 | /* Note: Unlike the OV511/OV511+, the size argument does NOT include the | |
1246 | * optional packet number byte. The actual size *is* stored in ov->packet_size, | |
1247 | * though. */ | |
1248 | static int | |
1249 | ov518_set_packet_size(struct usb_ov511 *ov, int size) | |
1250 | { | |
1251 | int alt; | |
1252 | ||
1253 | if (ov51x_stop(ov) < 0) | |
1254 | return -EIO; | |
1255 | ||
1256 | if (ov->bclass == BCL_OV518) { | |
1257 | if (size == 0) | |
1258 | alt = OV518_ALT_SIZE_0; | |
1259 | else if (size == 128) | |
1260 | alt = OV518_ALT_SIZE_128; | |
1261 | else if (size == 256) | |
1262 | alt = OV518_ALT_SIZE_256; | |
1263 | else if (size == 384) | |
1264 | alt = OV518_ALT_SIZE_384; | |
1265 | else if (size == 512) | |
1266 | alt = OV518_ALT_SIZE_512; | |
1267 | else if (size == 640) | |
1268 | alt = OV518_ALT_SIZE_640; | |
1269 | else if (size == 768) | |
1270 | alt = OV518_ALT_SIZE_768; | |
1271 | else if (size == 896) | |
1272 | alt = OV518_ALT_SIZE_896; | |
1273 | else { | |
1274 | err("Set packet size: invalid size (%d)", size); | |
1275 | return -EINVAL; | |
1276 | } | |
1277 | } else { | |
1278 | err("Set packet size: Invalid bridge type"); | |
1279 | return -EINVAL; | |
1280 | } | |
1281 | ||
1282 | PDEBUG(3, "%d, alt=%d", size, alt); | |
1283 | ||
1284 | ov->packet_size = size; | |
1285 | if (size > 0) { | |
1286 | /* Program ISO FIFO size reg (packet number isn't included) */ | |
1287 | ov518_reg_w32(ov, 0x30, size, 2); | |
1288 | ||
1289 | if (ov->packet_numbering) | |
1290 | ++ov->packet_size; | |
1291 | } | |
1292 | ||
1293 | if (usb_set_interface(ov->dev, ov->iface, alt) < 0) { | |
1294 | err("Set packet size: set interface error"); | |
1295 | return -EBUSY; | |
1296 | } | |
1297 | ||
1298 | /* Initialize the stream */ | |
1299 | if (reg_w(ov, 0x2f, 0x80) < 0) | |
1300 | return -EIO; | |
1301 | ||
1302 | if (ov51x_restart(ov) < 0) | |
1303 | return -EIO; | |
1304 | ||
1305 | if (ov51x_reset(ov, OV511_RESET_NOREGS) < 0) | |
1306 | return -EIO; | |
1307 | ||
1308 | return 0; | |
1309 | } | |
1310 | ||
1311 | /* Upload compression params and quantization tables. Returns 0 for success. */ | |
1312 | static int | |
1313 | ov511_init_compression(struct usb_ov511 *ov) | |
1314 | { | |
1315 | int rc = 0; | |
1316 | ||
1317 | if (!ov->compress_inited) { | |
1318 | reg_w(ov, 0x70, phy); | |
1319 | reg_w(ov, 0x71, phuv); | |
1320 | reg_w(ov, 0x72, pvy); | |
1321 | reg_w(ov, 0x73, pvuv); | |
1322 | reg_w(ov, 0x74, qhy); | |
1323 | reg_w(ov, 0x75, qhuv); | |
1324 | reg_w(ov, 0x76, qvy); | |
1325 | reg_w(ov, 0x77, qvuv); | |
1326 | ||
1327 | if (ov511_upload_quan_tables(ov) < 0) { | |
1328 | err("Error uploading quantization tables"); | |
1329 | rc = -EIO; | |
1330 | goto out; | |
1331 | } | |
1332 | } | |
1333 | ||
1334 | ov->compress_inited = 1; | |
1335 | out: | |
1336 | return rc; | |
1337 | } | |
1338 | ||
1339 | /* Upload compression params and quantization tables. Returns 0 for success. */ | |
1340 | static int | |
1341 | ov518_init_compression(struct usb_ov511 *ov) | |
1342 | { | |
1343 | int rc = 0; | |
1344 | ||
1345 | if (!ov->compress_inited) { | |
1346 | if (ov518_upload_quan_tables(ov) < 0) { | |
1347 | err("Error uploading quantization tables"); | |
1348 | rc = -EIO; | |
1349 | goto out; | |
1350 | } | |
1351 | } | |
1352 | ||
1353 | ov->compress_inited = 1; | |
1354 | out: | |
1355 | return rc; | |
1356 | } | |
1357 | ||
1358 | /* -------------------------------------------------------------------------- */ | |
1359 | ||
1360 | /* Sets sensor's contrast setting to "val" */ | |
1361 | static int | |
1362 | sensor_set_contrast(struct usb_ov511 *ov, unsigned short val) | |
1363 | { | |
1364 | int rc; | |
1365 | ||
1366 | PDEBUG(3, "%d", val); | |
1367 | ||
1368 | if (ov->stop_during_set) | |
1369 | if (ov51x_stop(ov) < 0) | |
1370 | return -EIO; | |
1371 | ||
1372 | switch (ov->sensor) { | |
1373 | case SEN_OV7610: | |
1374 | case SEN_OV6620: | |
1375 | { | |
1376 | rc = i2c_w(ov, OV7610_REG_CNT, val >> 8); | |
1377 | if (rc < 0) | |
1378 | goto out; | |
1379 | break; | |
1380 | } | |
1381 | case SEN_OV6630: | |
1382 | { | |
1383 | rc = i2c_w_mask(ov, OV7610_REG_CNT, val >> 12, 0x0f); | |
1384 | if (rc < 0) | |
1385 | goto out; | |
1386 | break; | |
1387 | } | |
1388 | case SEN_OV7620: | |
1389 | { | |
1390 | unsigned char ctab[] = { | |
1391 | 0x01, 0x05, 0x09, 0x11, 0x15, 0x35, 0x37, 0x57, | |
1392 | 0x5b, 0xa5, 0xa7, 0xc7, 0xc9, 0xcf, 0xef, 0xff | |
1393 | }; | |
1394 | ||
1395 | /* Use Y gamma control instead. Bit 0 enables it. */ | |
1396 | rc = i2c_w(ov, 0x64, ctab[val>>12]); | |
1397 | if (rc < 0) | |
1398 | goto out; | |
1399 | break; | |
1400 | } | |
1401 | case SEN_SAA7111A: | |
1402 | { | |
1403 | rc = i2c_w(ov, 0x0b, val >> 9); | |
1404 | if (rc < 0) | |
1405 | goto out; | |
1406 | break; | |
1407 | } | |
1408 | default: | |
1409 | { | |
1410 | PDEBUG(3, "Unsupported with this sensor"); | |
1411 | rc = -EPERM; | |
1412 | goto out; | |
1413 | } | |
1414 | } | |
1415 | ||
1416 | rc = 0; /* Success */ | |
1417 | ov->contrast = val; | |
1418 | out: | |
1419 | if (ov51x_restart(ov) < 0) | |
1420 | return -EIO; | |
1421 | ||
1422 | return rc; | |
1423 | } | |
1424 | ||
1425 | /* Gets sensor's contrast setting */ | |
1426 | static int | |
1427 | sensor_get_contrast(struct usb_ov511 *ov, unsigned short *val) | |
1428 | { | |
1429 | int rc; | |
1430 | ||
1431 | switch (ov->sensor) { | |
1432 | case SEN_OV7610: | |
1433 | case SEN_OV6620: | |
1434 | rc = i2c_r(ov, OV7610_REG_CNT); | |
1435 | if (rc < 0) | |
1436 | return rc; | |
1437 | else | |
1438 | *val = rc << 8; | |
1439 | break; | |
1440 | case SEN_OV6630: | |
1441 | rc = i2c_r(ov, OV7610_REG_CNT); | |
1442 | if (rc < 0) | |
1443 | return rc; | |
1444 | else | |
1445 | *val = rc << 12; | |
1446 | break; | |
1447 | case SEN_OV7620: | |
1448 | /* Use Y gamma reg instead. Bit 0 is the enable bit. */ | |
1449 | rc = i2c_r(ov, 0x64); | |
1450 | if (rc < 0) | |
1451 | return rc; | |
1452 | else | |
1453 | *val = (rc & 0xfe) << 8; | |
1454 | break; | |
1455 | case SEN_SAA7111A: | |
1456 | *val = ov->contrast; | |
1457 | break; | |
1458 | default: | |
1459 | PDEBUG(3, "Unsupported with this sensor"); | |
1460 | return -EPERM; | |
1461 | } | |
1462 | ||
1463 | PDEBUG(3, "%d", *val); | |
1464 | ov->contrast = *val; | |
1465 | ||
1466 | return 0; | |
1467 | } | |
1468 | ||
1469 | /* -------------------------------------------------------------------------- */ | |
1470 | ||
1471 | /* Sets sensor's brightness setting to "val" */ | |
1472 | static int | |
1473 | sensor_set_brightness(struct usb_ov511 *ov, unsigned short val) | |
1474 | { | |
1475 | int rc; | |
1476 | ||
1477 | PDEBUG(4, "%d", val); | |
1478 | ||
1479 | if (ov->stop_during_set) | |
1480 | if (ov51x_stop(ov) < 0) | |
1481 | return -EIO; | |
1482 | ||
1483 | switch (ov->sensor) { | |
1484 | case SEN_OV7610: | |
1485 | case SEN_OV76BE: | |
1486 | case SEN_OV6620: | |
1487 | case SEN_OV6630: | |
1488 | rc = i2c_w(ov, OV7610_REG_BRT, val >> 8); | |
1489 | if (rc < 0) | |
1490 | goto out; | |
1491 | break; | |
1492 | case SEN_OV7620: | |
1493 | /* 7620 doesn't like manual changes when in auto mode */ | |
1494 | if (!ov->auto_brt) { | |
1495 | rc = i2c_w(ov, OV7610_REG_BRT, val >> 8); | |
1496 | if (rc < 0) | |
1497 | goto out; | |
1498 | } | |
1499 | break; | |
1500 | case SEN_SAA7111A: | |
1501 | rc = i2c_w(ov, 0x0a, val >> 8); | |
1502 | if (rc < 0) | |
1503 | goto out; | |
1504 | break; | |
1505 | default: | |
1506 | PDEBUG(3, "Unsupported with this sensor"); | |
1507 | rc = -EPERM; | |
1508 | goto out; | |
1509 | } | |
1510 | ||
1511 | rc = 0; /* Success */ | |
1512 | ov->brightness = val; | |
1513 | out: | |
1514 | if (ov51x_restart(ov) < 0) | |
1515 | return -EIO; | |
1516 | ||
1517 | return rc; | |
1518 | } | |
1519 | ||
1520 | /* Gets sensor's brightness setting */ | |
1521 | static int | |
1522 | sensor_get_brightness(struct usb_ov511 *ov, unsigned short *val) | |
1523 | { | |
1524 | int rc; | |
1525 | ||
1526 | switch (ov->sensor) { | |
1527 | case SEN_OV7610: | |
1528 | case SEN_OV76BE: | |
1529 | case SEN_OV7620: | |
1530 | case SEN_OV6620: | |
1531 | case SEN_OV6630: | |
1532 | rc = i2c_r(ov, OV7610_REG_BRT); | |
1533 | if (rc < 0) | |
1534 | return rc; | |
1535 | else | |
1536 | *val = rc << 8; | |
1537 | break; | |
1538 | case SEN_SAA7111A: | |
1539 | *val = ov->brightness; | |
1540 | break; | |
1541 | default: | |
1542 | PDEBUG(3, "Unsupported with this sensor"); | |
1543 | return -EPERM; | |
1544 | } | |
1545 | ||
1546 | PDEBUG(3, "%d", *val); | |
1547 | ov->brightness = *val; | |
1548 | ||
1549 | return 0; | |
1550 | } | |
1551 | ||
1552 | /* -------------------------------------------------------------------------- */ | |
1553 | ||
1554 | /* Sets sensor's saturation (color intensity) setting to "val" */ | |
1555 | static int | |
1556 | sensor_set_saturation(struct usb_ov511 *ov, unsigned short val) | |
1557 | { | |
1558 | int rc; | |
1559 | ||
1560 | PDEBUG(3, "%d", val); | |
1561 | ||
1562 | if (ov->stop_during_set) | |
1563 | if (ov51x_stop(ov) < 0) | |
1564 | return -EIO; | |
1565 | ||
1566 | switch (ov->sensor) { | |
1567 | case SEN_OV7610: | |
1568 | case SEN_OV76BE: | |
1569 | case SEN_OV6620: | |
1570 | case SEN_OV6630: | |
1571 | rc = i2c_w(ov, OV7610_REG_SAT, val >> 8); | |
1572 | if (rc < 0) | |
1573 | goto out; | |
1574 | break; | |
1575 | case SEN_OV7620: | |
1576 | // /* Use UV gamma control instead. Bits 0 & 7 are reserved. */ | |
1577 | // rc = ov_i2c_write(ov->dev, 0x62, (val >> 9) & 0x7e); | |
1578 | // if (rc < 0) | |
1579 | // goto out; | |
1580 | rc = i2c_w(ov, OV7610_REG_SAT, val >> 8); | |
1581 | if (rc < 0) | |
1582 | goto out; | |
1583 | break; | |
1584 | case SEN_SAA7111A: | |
1585 | rc = i2c_w(ov, 0x0c, val >> 9); | |
1586 | if (rc < 0) | |
1587 | goto out; | |
1588 | break; | |
1589 | default: | |
1590 | PDEBUG(3, "Unsupported with this sensor"); | |
1591 | rc = -EPERM; | |
1592 | goto out; | |
1593 | } | |
1594 | ||
1595 | rc = 0; /* Success */ | |
1596 | ov->colour = val; | |
1597 | out: | |
1598 | if (ov51x_restart(ov) < 0) | |
1599 | return -EIO; | |
1600 | ||
1601 | return rc; | |
1602 | } | |
1603 | ||
1604 | /* Gets sensor's saturation (color intensity) setting */ | |
1605 | static int | |
1606 | sensor_get_saturation(struct usb_ov511 *ov, unsigned short *val) | |
1607 | { | |
1608 | int rc; | |
1609 | ||
1610 | switch (ov->sensor) { | |
1611 | case SEN_OV7610: | |
1612 | case SEN_OV76BE: | |
1613 | case SEN_OV6620: | |
1614 | case SEN_OV6630: | |
1615 | rc = i2c_r(ov, OV7610_REG_SAT); | |
1616 | if (rc < 0) | |
1617 | return rc; | |
1618 | else | |
1619 | *val = rc << 8; | |
1620 | break; | |
1621 | case SEN_OV7620: | |
1622 | // /* Use UV gamma reg instead. Bits 0 & 7 are reserved. */ | |
1623 | // rc = i2c_r(ov, 0x62); | |
1624 | // if (rc < 0) | |
1625 | // return rc; | |
1626 | // else | |
1627 | // *val = (rc & 0x7e) << 9; | |
1628 | rc = i2c_r(ov, OV7610_REG_SAT); | |
1629 | if (rc < 0) | |
1630 | return rc; | |
1631 | else | |
1632 | *val = rc << 8; | |
1633 | break; | |
1634 | case SEN_SAA7111A: | |
1635 | *val = ov->colour; | |
1636 | break; | |
1637 | default: | |
1638 | PDEBUG(3, "Unsupported with this sensor"); | |
1639 | return -EPERM; | |
1640 | } | |
1641 | ||
1642 | PDEBUG(3, "%d", *val); | |
1643 | ov->colour = *val; | |
1644 | ||
1645 | return 0; | |
1646 | } | |
1647 | ||
1648 | /* -------------------------------------------------------------------------- */ | |
1649 | ||
1650 | /* Sets sensor's hue (red/blue balance) setting to "val" */ | |
1651 | static int | |
1652 | sensor_set_hue(struct usb_ov511 *ov, unsigned short val) | |
1653 | { | |
1654 | int rc; | |
1655 | ||
1656 | PDEBUG(3, "%d", val); | |
1657 | ||
1658 | if (ov->stop_during_set) | |
1659 | if (ov51x_stop(ov) < 0) | |
1660 | return -EIO; | |
1661 | ||
1662 | switch (ov->sensor) { | |
1663 | case SEN_OV7610: | |
1664 | case SEN_OV6620: | |
1665 | case SEN_OV6630: | |
1666 | rc = i2c_w(ov, OV7610_REG_RED, 0xFF - (val >> 8)); | |
1667 | if (rc < 0) | |
1668 | goto out; | |
1669 | ||
1670 | rc = i2c_w(ov, OV7610_REG_BLUE, val >> 8); | |
1671 | if (rc < 0) | |
1672 | goto out; | |
1673 | break; | |
1674 | case SEN_OV7620: | |
1675 | // Hue control is causing problems. I will enable it once it's fixed. | |
1676 | #if 0 | |
1677 | rc = i2c_w(ov, 0x7a, (unsigned char)(val >> 8) + 0xb); | |
1678 | if (rc < 0) | |
1679 | goto out; | |
1680 | ||
1681 | rc = i2c_w(ov, 0x79, (unsigned char)(val >> 8) + 0xb); | |
1682 | if (rc < 0) | |
1683 | goto out; | |
1684 | #endif | |
1685 | break; | |
1686 | case SEN_SAA7111A: | |
1687 | rc = i2c_w(ov, 0x0d, (val + 32768) >> 8); | |
1688 | if (rc < 0) | |
1689 | goto out; | |
1690 | break; | |
1691 | default: | |
1692 | PDEBUG(3, "Unsupported with this sensor"); | |
1693 | rc = -EPERM; | |
1694 | goto out; | |
1695 | } | |
1696 | ||
1697 | rc = 0; /* Success */ | |
1698 | ov->hue = val; | |
1699 | out: | |
1700 | if (ov51x_restart(ov) < 0) | |
1701 | return -EIO; | |
1702 | ||
1703 | return rc; | |
1704 | } | |
1705 | ||
1706 | /* Gets sensor's hue (red/blue balance) setting */ | |
1707 | static int | |
1708 | sensor_get_hue(struct usb_ov511 *ov, unsigned short *val) | |
1709 | { | |
1710 | int rc; | |
1711 | ||
1712 | switch (ov->sensor) { | |
1713 | case SEN_OV7610: | |
1714 | case SEN_OV6620: | |
1715 | case SEN_OV6630: | |
1716 | rc = i2c_r(ov, OV7610_REG_BLUE); | |
1717 | if (rc < 0) | |
1718 | return rc; | |
1719 | else | |
1720 | *val = rc << 8; | |
1721 | break; | |
1722 | case SEN_OV7620: | |
1723 | rc = i2c_r(ov, 0x7a); | |
1724 | if (rc < 0) | |
1725 | return rc; | |
1726 | else | |
1727 | *val = rc << 8; | |
1728 | break; | |
1729 | case SEN_SAA7111A: | |
1730 | *val = ov->hue; | |
1731 | break; | |
1732 | default: | |
1733 | PDEBUG(3, "Unsupported with this sensor"); | |
1734 | return -EPERM; | |
1735 | } | |
1736 | ||
1737 | PDEBUG(3, "%d", *val); | |
1738 | ov->hue = *val; | |
1739 | ||
1740 | return 0; | |
1741 | } | |
1742 | ||
1743 | /* -------------------------------------------------------------------------- */ | |
1744 | ||
1745 | static int | |
1746 | sensor_set_picture(struct usb_ov511 *ov, struct video_picture *p) | |
1747 | { | |
1748 | int rc; | |
1749 | ||
1750 | PDEBUG(4, "sensor_set_picture"); | |
1751 | ||
1752 | ov->whiteness = p->whiteness; | |
1753 | ||
1754 | /* Don't return error if a setting is unsupported, or rest of settings | |
d56410e0 | 1755 | * will not be performed */ |
1da177e4 LT |
1756 | |
1757 | rc = sensor_set_contrast(ov, p->contrast); | |
1758 | if (FATAL_ERROR(rc)) | |
1759 | return rc; | |
1760 | ||
1761 | rc = sensor_set_brightness(ov, p->brightness); | |
1762 | if (FATAL_ERROR(rc)) | |
1763 | return rc; | |
1764 | ||
1765 | rc = sensor_set_saturation(ov, p->colour); | |
1766 | if (FATAL_ERROR(rc)) | |
1767 | return rc; | |
1768 | ||
1769 | rc = sensor_set_hue(ov, p->hue); | |
1770 | if (FATAL_ERROR(rc)) | |
1771 | return rc; | |
1772 | ||
1773 | return 0; | |
1774 | } | |
1775 | ||
1776 | static int | |
1777 | sensor_get_picture(struct usb_ov511 *ov, struct video_picture *p) | |
1778 | { | |
1779 | int rc; | |
1780 | ||
1781 | PDEBUG(4, "sensor_get_picture"); | |
1782 | ||
1783 | /* Don't return error if a setting is unsupported, or rest of settings | |
d56410e0 | 1784 | * will not be performed */ |
1da177e4 LT |
1785 | |
1786 | rc = sensor_get_contrast(ov, &(p->contrast)); | |
1787 | if (FATAL_ERROR(rc)) | |
1788 | return rc; | |
1789 | ||
1790 | rc = sensor_get_brightness(ov, &(p->brightness)); | |
1791 | if (FATAL_ERROR(rc)) | |
1792 | return rc; | |
1793 | ||
1794 | rc = sensor_get_saturation(ov, &(p->colour)); | |
1795 | if (FATAL_ERROR(rc)) | |
1796 | return rc; | |
1797 | ||
1798 | rc = sensor_get_hue(ov, &(p->hue)); | |
1799 | if (FATAL_ERROR(rc)) | |
1800 | return rc; | |
1801 | ||
1802 | p->whiteness = 105 << 8; | |
1803 | ||
1804 | return 0; | |
1805 | } | |
1806 | ||
1807 | #if 0 | |
1808 | // FIXME: Exposure range is only 0x00-0x7f in interlace mode | |
1809 | /* Sets current exposure for sensor. This only has an effect if auto-exposure | |
1810 | * is off */ | |
1811 | static inline int | |
1812 | sensor_set_exposure(struct usb_ov511 *ov, unsigned char val) | |
1813 | { | |
1814 | int rc; | |
1815 | ||
1816 | PDEBUG(3, "%d", val); | |
1817 | ||
1818 | if (ov->stop_during_set) | |
1819 | if (ov51x_stop(ov) < 0) | |
1820 | return -EIO; | |
1821 | ||
1822 | switch (ov->sensor) { | |
1823 | case SEN_OV6620: | |
1824 | case SEN_OV6630: | |
1825 | case SEN_OV7610: | |
1826 | case SEN_OV7620: | |
1827 | case SEN_OV76BE: | |
1828 | case SEN_OV8600: | |
1829 | rc = i2c_w(ov, 0x10, val); | |
1830 | if (rc < 0) | |
1831 | goto out; | |
1832 | ||
1833 | break; | |
1834 | case SEN_KS0127: | |
1835 | case SEN_KS0127B: | |
1836 | case SEN_SAA7111A: | |
1837 | PDEBUG(3, "Unsupported with this sensor"); | |
1838 | return -EPERM; | |
1839 | default: | |
1840 | err("Sensor not supported for set_exposure"); | |
1841 | return -EINVAL; | |
1842 | } | |
1843 | ||
1844 | rc = 0; /* Success */ | |
1845 | ov->exposure = val; | |
1846 | out: | |
1847 | if (ov51x_restart(ov) < 0) | |
1848 | return -EIO; | |
1849 | ||
1850 | return rc; | |
1851 | } | |
1852 | #endif | |
1853 | ||
1854 | /* Gets current exposure level from sensor, regardless of whether it is under | |
1855 | * manual control. */ | |
1856 | static int | |
1857 | sensor_get_exposure(struct usb_ov511 *ov, unsigned char *val) | |
1858 | { | |
1859 | int rc; | |
1860 | ||
1861 | switch (ov->sensor) { | |
1862 | case SEN_OV7610: | |
1863 | case SEN_OV6620: | |
1864 | case SEN_OV6630: | |
1865 | case SEN_OV7620: | |
1866 | case SEN_OV76BE: | |
1867 | case SEN_OV8600: | |
1868 | rc = i2c_r(ov, 0x10); | |
1869 | if (rc < 0) | |
1870 | return rc; | |
1871 | else | |
1872 | *val = rc; | |
1873 | break; | |
1874 | case SEN_KS0127: | |
1875 | case SEN_KS0127B: | |
1876 | case SEN_SAA7111A: | |
1877 | val = NULL; | |
1878 | PDEBUG(3, "Unsupported with this sensor"); | |
1879 | return -EPERM; | |
1880 | default: | |
1881 | err("Sensor not supported for get_exposure"); | |
1882 | return -EINVAL; | |
1883 | } | |
1884 | ||
1885 | PDEBUG(3, "%d", *val); | |
1886 | ov->exposure = *val; | |
1887 | ||
1888 | return 0; | |
1889 | } | |
1890 | ||
1891 | /* Turns on or off the LED. Only has an effect with OV511+/OV518(+) */ | |
1892 | static void | |
1893 | ov51x_led_control(struct usb_ov511 *ov, int enable) | |
1894 | { | |
1895 | PDEBUG(4, " (%s)", enable ? "turn on" : "turn off"); | |
1896 | ||
1897 | if (ov->bridge == BRG_OV511PLUS) | |
1898 | reg_w(ov, R511_SYS_LED_CTL, enable ? 1 : 0); | |
1899 | else if (ov->bclass == BCL_OV518) | |
1900 | reg_w_mask(ov, R518_GPIO_OUT, enable ? 0x02 : 0x00, 0x02); | |
1901 | ||
1902 | return; | |
1903 | } | |
1904 | ||
1905 | /* Matches the sensor's internal frame rate to the lighting frequency. | |
1906 | * Valid frequencies are: | |
1907 | * 50 - 50Hz, for European and Asian lighting | |
1908 | * 60 - 60Hz, for American lighting | |
1909 | * | |
1910 | * Tested with: OV7610, OV7620, OV76BE, OV6620 | |
1911 | * Unsupported: KS0127, KS0127B, SAA7111A | |
1912 | * Returns: 0 for success | |
1913 | */ | |
1914 | static int | |
1915 | sensor_set_light_freq(struct usb_ov511 *ov, int freq) | |
1916 | { | |
1917 | int sixty; | |
1918 | ||
1919 | PDEBUG(4, "%d Hz", freq); | |
1920 | ||
1921 | if (freq == 60) | |
1922 | sixty = 1; | |
1923 | else if (freq == 50) | |
1924 | sixty = 0; | |
1925 | else { | |
1926 | err("Invalid light freq (%d Hz)", freq); | |
1927 | return -EINVAL; | |
1928 | } | |
1929 | ||
1930 | switch (ov->sensor) { | |
1931 | case SEN_OV7610: | |
1932 | i2c_w_mask(ov, 0x2a, sixty?0x00:0x80, 0x80); | |
1933 | i2c_w(ov, 0x2b, sixty?0x00:0xac); | |
1934 | i2c_w_mask(ov, 0x13, 0x10, 0x10); | |
1935 | i2c_w_mask(ov, 0x13, 0x00, 0x10); | |
1936 | break; | |
1937 | case SEN_OV7620: | |
1938 | case SEN_OV76BE: | |
1939 | case SEN_OV8600: | |
1940 | i2c_w_mask(ov, 0x2a, sixty?0x00:0x80, 0x80); | |
1941 | i2c_w(ov, 0x2b, sixty?0x00:0xac); | |
1942 | i2c_w_mask(ov, 0x76, 0x01, 0x01); | |
1943 | break; | |
1944 | case SEN_OV6620: | |
1945 | case SEN_OV6630: | |
1946 | i2c_w(ov, 0x2b, sixty?0xa8:0x28); | |
1947 | i2c_w(ov, 0x2a, sixty?0x84:0xa4); | |
1948 | break; | |
1949 | case SEN_KS0127: | |
1950 | case SEN_KS0127B: | |
1951 | case SEN_SAA7111A: | |
1952 | PDEBUG(5, "Unsupported with this sensor"); | |
1953 | return -EPERM; | |
1954 | default: | |
1955 | err("Sensor not supported for set_light_freq"); | |
1956 | return -EINVAL; | |
1957 | } | |
1958 | ||
1959 | ov->lightfreq = freq; | |
1960 | ||
1961 | return 0; | |
1962 | } | |
1963 | ||
1964 | /* If enable is true, turn on the sensor's banding filter, otherwise turn it | |
1965 | * off. This filter tries to reduce the pattern of horizontal light/dark bands | |
1966 | * caused by some (usually fluorescent) lighting. The light frequency must be | |
1967 | * set either before or after enabling it with ov51x_set_light_freq(). | |
1968 | * | |
1969 | * Tested with: OV7610, OV7620, OV76BE, OV6620. | |
1970 | * Unsupported: KS0127, KS0127B, SAA7111A | |
1971 | * Returns: 0 for success | |
1972 | */ | |
1973 | static int | |
1974 | sensor_set_banding_filter(struct usb_ov511 *ov, int enable) | |
1975 | { | |
1976 | int rc; | |
1977 | ||
1978 | PDEBUG(4, " (%s)", enable ? "turn on" : "turn off"); | |
1979 | ||
1980 | if (ov->sensor == SEN_KS0127 || ov->sensor == SEN_KS0127B | |
1981 | || ov->sensor == SEN_SAA7111A) { | |
1982 | PDEBUG(5, "Unsupported with this sensor"); | |
1983 | return -EPERM; | |
1984 | } | |
1985 | ||
1986 | rc = i2c_w_mask(ov, 0x2d, enable?0x04:0x00, 0x04); | |
1987 | if (rc < 0) | |
1988 | return rc; | |
1989 | ||
1990 | ov->bandfilt = enable; | |
1991 | ||
1992 | return 0; | |
1993 | } | |
1994 | ||
1995 | /* If enable is true, turn on the sensor's auto brightness control, otherwise | |
1996 | * turn it off. | |
1997 | * | |
1998 | * Unsupported: KS0127, KS0127B, SAA7111A | |
1999 | * Returns: 0 for success | |
2000 | */ | |
2001 | static int | |
2002 | sensor_set_auto_brightness(struct usb_ov511 *ov, int enable) | |
2003 | { | |
2004 | int rc; | |
2005 | ||
2006 | PDEBUG(4, " (%s)", enable ? "turn on" : "turn off"); | |
2007 | ||
2008 | if (ov->sensor == SEN_KS0127 || ov->sensor == SEN_KS0127B | |
2009 | || ov->sensor == SEN_SAA7111A) { | |
2010 | PDEBUG(5, "Unsupported with this sensor"); | |
2011 | return -EPERM; | |
2012 | } | |
2013 | ||
2014 | rc = i2c_w_mask(ov, 0x2d, enable?0x10:0x00, 0x10); | |
2015 | if (rc < 0) | |
2016 | return rc; | |
2017 | ||
2018 | ov->auto_brt = enable; | |
2019 | ||
2020 | return 0; | |
2021 | } | |
2022 | ||
2023 | /* If enable is true, turn on the sensor's auto exposure control, otherwise | |
2024 | * turn it off. | |
2025 | * | |
2026 | * Unsupported: KS0127, KS0127B, SAA7111A | |
2027 | * Returns: 0 for success | |
2028 | */ | |
2029 | static int | |
2030 | sensor_set_auto_exposure(struct usb_ov511 *ov, int enable) | |
2031 | { | |
2032 | PDEBUG(4, " (%s)", enable ? "turn on" : "turn off"); | |
2033 | ||
2034 | switch (ov->sensor) { | |
2035 | case SEN_OV7610: | |
2036 | i2c_w_mask(ov, 0x29, enable?0x00:0x80, 0x80); | |
2037 | break; | |
2038 | case SEN_OV6620: | |
2039 | case SEN_OV7620: | |
2040 | case SEN_OV76BE: | |
2041 | case SEN_OV8600: | |
2042 | i2c_w_mask(ov, 0x13, enable?0x01:0x00, 0x01); | |
2043 | break; | |
2044 | case SEN_OV6630: | |
2045 | i2c_w_mask(ov, 0x28, enable?0x00:0x10, 0x10); | |
2046 | break; | |
2047 | case SEN_KS0127: | |
2048 | case SEN_KS0127B: | |
2049 | case SEN_SAA7111A: | |
2050 | PDEBUG(5, "Unsupported with this sensor"); | |
2051 | return -EPERM; | |
2052 | default: | |
2053 | err("Sensor not supported for set_auto_exposure"); | |
2054 | return -EINVAL; | |
2055 | } | |
2056 | ||
2057 | ov->auto_exp = enable; | |
2058 | ||
2059 | return 0; | |
2060 | } | |
2061 | ||
2062 | /* Modifies the sensor's exposure algorithm to allow proper exposure of objects | |
2063 | * that are illuminated from behind. | |
2064 | * | |
2065 | * Tested with: OV6620, OV7620 | |
2066 | * Unsupported: OV7610, OV76BE, KS0127, KS0127B, SAA7111A | |
2067 | * Returns: 0 for success | |
2068 | */ | |
2069 | static int | |
2070 | sensor_set_backlight(struct usb_ov511 *ov, int enable) | |
2071 | { | |
2072 | PDEBUG(4, " (%s)", enable ? "turn on" : "turn off"); | |
2073 | ||
2074 | switch (ov->sensor) { | |
2075 | case SEN_OV7620: | |
2076 | case SEN_OV8600: | |
2077 | i2c_w_mask(ov, 0x68, enable?0xe0:0xc0, 0xe0); | |
2078 | i2c_w_mask(ov, 0x29, enable?0x08:0x00, 0x08); | |
2079 | i2c_w_mask(ov, 0x28, enable?0x02:0x00, 0x02); | |
2080 | break; | |
2081 | case SEN_OV6620: | |
2082 | i2c_w_mask(ov, 0x4e, enable?0xe0:0xc0, 0xe0); | |
2083 | i2c_w_mask(ov, 0x29, enable?0x08:0x00, 0x08); | |
2084 | i2c_w_mask(ov, 0x0e, enable?0x80:0x00, 0x80); | |
2085 | break; | |
2086 | case SEN_OV6630: | |
2087 | i2c_w_mask(ov, 0x4e, enable?0x80:0x60, 0xe0); | |
2088 | i2c_w_mask(ov, 0x29, enable?0x08:0x00, 0x08); | |
2089 | i2c_w_mask(ov, 0x28, enable?0x02:0x00, 0x02); | |
2090 | break; | |
2091 | case SEN_OV7610: | |
2092 | case SEN_OV76BE: | |
2093 | case SEN_KS0127: | |
2094 | case SEN_KS0127B: | |
2095 | case SEN_SAA7111A: | |
2096 | PDEBUG(5, "Unsupported with this sensor"); | |
2097 | return -EPERM; | |
2098 | default: | |
2099 | err("Sensor not supported for set_backlight"); | |
2100 | return -EINVAL; | |
2101 | } | |
2102 | ||
2103 | ov->backlight = enable; | |
2104 | ||
2105 | return 0; | |
2106 | } | |
2107 | ||
2108 | static int | |
2109 | sensor_set_mirror(struct usb_ov511 *ov, int enable) | |
2110 | { | |
2111 | PDEBUG(4, " (%s)", enable ? "turn on" : "turn off"); | |
2112 | ||
2113 | switch (ov->sensor) { | |
2114 | case SEN_OV6620: | |
2115 | case SEN_OV6630: | |
2116 | case SEN_OV7610: | |
2117 | case SEN_OV7620: | |
2118 | case SEN_OV76BE: | |
2119 | case SEN_OV8600: | |
2120 | i2c_w_mask(ov, 0x12, enable?0x40:0x00, 0x40); | |
2121 | break; | |
2122 | case SEN_KS0127: | |
2123 | case SEN_KS0127B: | |
2124 | case SEN_SAA7111A: | |
2125 | PDEBUG(5, "Unsupported with this sensor"); | |
2126 | return -EPERM; | |
2127 | default: | |
2128 | err("Sensor not supported for set_mirror"); | |
2129 | return -EINVAL; | |
2130 | } | |
2131 | ||
2132 | ov->mirror = enable; | |
2133 | ||
2134 | return 0; | |
2135 | } | |
2136 | ||
2137 | /* Returns number of bits per pixel (regardless of where they are located; | |
2138 | * planar or not), or zero for unsupported format. | |
2139 | */ | |
2140 | static inline int | |
2141 | get_depth(int palette) | |
2142 | { | |
2143 | switch (palette) { | |
2144 | case VIDEO_PALETTE_GREY: return 8; | |
2145 | case VIDEO_PALETTE_YUV420: return 12; | |
2146 | case VIDEO_PALETTE_YUV420P: return 12; /* Planar */ | |
2147 | default: return 0; /* Invalid format */ | |
2148 | } | |
2149 | } | |
2150 | ||
2151 | /* Bytes per frame. Used by read(). Return of 0 indicates error */ | |
2152 | static inline long int | |
2153 | get_frame_length(struct ov511_frame *frame) | |
2154 | { | |
2155 | if (!frame) | |
2156 | return 0; | |
2157 | else | |
2158 | return ((frame->width * frame->height | |
2159 | * get_depth(frame->format)) >> 3); | |
2160 | } | |
2161 | ||
2162 | static int | |
2163 | mode_init_ov_sensor_regs(struct usb_ov511 *ov, int width, int height, | |
2164 | int mode, int sub_flag, int qvga) | |
2165 | { | |
2166 | int clock; | |
2167 | ||
2168 | /******** Mode (VGA/QVGA) and sensor specific regs ********/ | |
2169 | ||
2170 | switch (ov->sensor) { | |
2171 | case SEN_OV7610: | |
2172 | i2c_w(ov, 0x14, qvga?0x24:0x04); | |
2173 | // FIXME: Does this improve the image quality or frame rate? | |
2174 | #if 0 | |
2175 | i2c_w_mask(ov, 0x28, qvga?0x00:0x20, 0x20); | |
2176 | i2c_w(ov, 0x24, 0x10); | |
2177 | i2c_w(ov, 0x25, qvga?0x40:0x8a); | |
2178 | i2c_w(ov, 0x2f, qvga?0x30:0xb0); | |
2179 | i2c_w(ov, 0x35, qvga?0x1c:0x9c); | |
2180 | #endif | |
2181 | break; | |
2182 | case SEN_OV7620: | |
2183 | // i2c_w(ov, 0x2b, 0x00); | |
2184 | i2c_w(ov, 0x14, qvga?0xa4:0x84); | |
2185 | i2c_w_mask(ov, 0x28, qvga?0x00:0x20, 0x20); | |
2186 | i2c_w(ov, 0x24, qvga?0x20:0x3a); | |
2187 | i2c_w(ov, 0x25, qvga?0x30:0x60); | |
2188 | i2c_w_mask(ov, 0x2d, qvga?0x40:0x00, 0x40); | |
2189 | i2c_w_mask(ov, 0x67, qvga?0xf0:0x90, 0xf0); | |
2190 | i2c_w_mask(ov, 0x74, qvga?0x20:0x00, 0x20); | |
2191 | break; | |
2192 | case SEN_OV76BE: | |
2193 | // i2c_w(ov, 0x2b, 0x00); | |
2194 | i2c_w(ov, 0x14, qvga?0xa4:0x84); | |
2195 | // FIXME: Enable this once 7620AE uses 7620 initial settings | |
2196 | #if 0 | |
2197 | i2c_w_mask(ov, 0x28, qvga?0x00:0x20, 0x20); | |
2198 | i2c_w(ov, 0x24, qvga?0x20:0x3a); | |
2199 | i2c_w(ov, 0x25, qvga?0x30:0x60); | |
2200 | i2c_w_mask(ov, 0x2d, qvga?0x40:0x00, 0x40); | |
2201 | i2c_w_mask(ov, 0x67, qvga?0xb0:0x90, 0xf0); | |
2202 | i2c_w_mask(ov, 0x74, qvga?0x20:0x00, 0x20); | |
2203 | #endif | |
2204 | break; | |
2205 | case SEN_OV6620: | |
2206 | i2c_w(ov, 0x14, qvga?0x24:0x04); | |
2207 | break; | |
2208 | case SEN_OV6630: | |
2209 | i2c_w(ov, 0x14, qvga?0xa0:0x80); | |
2210 | break; | |
2211 | default: | |
2212 | err("Invalid sensor"); | |
2213 | return -EINVAL; | |
2214 | } | |
2215 | ||
2216 | /******** Palette-specific regs ********/ | |
2217 | ||
2218 | if (mode == VIDEO_PALETTE_GREY) { | |
2219 | if (ov->sensor == SEN_OV7610 || ov->sensor == SEN_OV76BE) { | |
2220 | /* these aren't valid on the OV6620/OV7620/6630? */ | |
2221 | i2c_w_mask(ov, 0x0e, 0x40, 0x40); | |
2222 | } | |
2223 | ||
2224 | if (ov->sensor == SEN_OV6630 && ov->bridge == BRG_OV518 | |
2225 | && ov518_color) { | |
2226 | i2c_w_mask(ov, 0x12, 0x00, 0x10); | |
2227 | i2c_w_mask(ov, 0x13, 0x00, 0x20); | |
2228 | } else { | |
2229 | i2c_w_mask(ov, 0x13, 0x20, 0x20); | |
2230 | } | |
2231 | } else { | |
2232 | if (ov->sensor == SEN_OV7610 || ov->sensor == SEN_OV76BE) { | |
2233 | /* not valid on the OV6620/OV7620/6630? */ | |
2234 | i2c_w_mask(ov, 0x0e, 0x00, 0x40); | |
2235 | } | |
2236 | ||
2237 | /* The OV518 needs special treatment. Although both the OV518 | |
2238 | * and the OV6630 support a 16-bit video bus, only the 8 bit Y | |
2239 | * bus is actually used. The UV bus is tied to ground. | |
2240 | * Therefore, the OV6630 needs to be in 8-bit multiplexed | |
2241 | * output mode */ | |
2242 | ||
2243 | if (ov->sensor == SEN_OV6630 && ov->bridge == BRG_OV518 | |
2244 | && ov518_color) { | |
2245 | i2c_w_mask(ov, 0x12, 0x10, 0x10); | |
2246 | i2c_w_mask(ov, 0x13, 0x20, 0x20); | |
2247 | } else { | |
2248 | i2c_w_mask(ov, 0x13, 0x00, 0x20); | |
2249 | } | |
2250 | } | |
2251 | ||
2252 | /******** Clock programming ********/ | |
2253 | ||
d56410e0 | 2254 | /* The OV6620 needs special handling. This prevents the |
1da177e4 LT |
2255 | * severe banding that normally occurs */ |
2256 | if (ov->sensor == SEN_OV6620 || ov->sensor == SEN_OV6630) | |
2257 | { | |
2258 | /* Clock down */ | |
2259 | ||
2260 | i2c_w(ov, 0x2a, 0x04); | |
2261 | ||
2262 | if (ov->compress) { | |
2263 | // clock = 0; /* This ensures the highest frame rate */ | |
2264 | clock = 3; | |
2265 | } else if (clockdiv == -1) { /* If user didn't override it */ | |
2266 | clock = 3; /* Gives better exposure time */ | |
2267 | } else { | |
2268 | clock = clockdiv; | |
2269 | } | |
2270 | ||
2271 | PDEBUG(4, "Setting clock divisor to %d", clock); | |
2272 | ||
2273 | i2c_w(ov, 0x11, clock); | |
2274 | ||
2275 | i2c_w(ov, 0x2a, 0x84); | |
2276 | /* This next setting is critical. It seems to improve | |
2277 | * the gain or the contrast. The "reserved" bits seem | |
2278 | * to have some effect in this case. */ | |
2279 | i2c_w(ov, 0x2d, 0x85); | |
2280 | } | |
2281 | else | |
2282 | { | |
2283 | if (ov->compress) { | |
2284 | clock = 1; /* This ensures the highest frame rate */ | |
2285 | } else if (clockdiv == -1) { /* If user didn't override it */ | |
2286 | /* Calculate and set the clock divisor */ | |
2287 | clock = ((sub_flag ? ov->subw * ov->subh | |
2288 | : width * height) | |
2289 | * (mode == VIDEO_PALETTE_GREY ? 2 : 3) / 2) | |
2290 | / 66000; | |
2291 | } else { | |
2292 | clock = clockdiv; | |
2293 | } | |
2294 | ||
2295 | PDEBUG(4, "Setting clock divisor to %d", clock); | |
2296 | ||
2297 | i2c_w(ov, 0x11, clock); | |
2298 | } | |
2299 | ||
2300 | /******** Special Features ********/ | |
2301 | ||
2302 | if (framedrop >= 0) | |
2303 | i2c_w(ov, 0x16, framedrop); | |
2304 | ||
2305 | /* Test Pattern */ | |
2306 | i2c_w_mask(ov, 0x12, (testpat?0x02:0x00), 0x02); | |
2307 | ||
2308 | /* Enable auto white balance */ | |
2309 | i2c_w_mask(ov, 0x12, 0x04, 0x04); | |
2310 | ||
2311 | // This will go away as soon as ov51x_mode_init_sensor_regs() | |
2312 | // is fully tested. | |
2313 | /* 7620/6620/6630? don't have register 0x35, so play it safe */ | |
2314 | if (ov->sensor == SEN_OV7610 || ov->sensor == SEN_OV76BE) { | |
2315 | if (width == 640 && height == 480) | |
2316 | i2c_w(ov, 0x35, 0x9e); | |
2317 | else | |
2318 | i2c_w(ov, 0x35, 0x1e); | |
2319 | } | |
2320 | ||
2321 | return 0; | |
2322 | } | |
2323 | ||
2324 | static int | |
2325 | set_ov_sensor_window(struct usb_ov511 *ov, int width, int height, int mode, | |
2326 | int sub_flag) | |
2327 | { | |
2328 | int ret; | |
d56410e0 | 2329 | int hwsbase, hwebase, vwsbase, vwebase, hwsize, vwsize; |
1da177e4 LT |
2330 | int hoffset, voffset, hwscale = 0, vwscale = 0; |
2331 | ||
2332 | /* The different sensor ICs handle setting up of window differently. | |
2333 | * IF YOU SET IT WRONG, YOU WILL GET ALL ZERO ISOC DATA FROM OV51x!!! */ | |
2334 | switch (ov->sensor) { | |
2335 | case SEN_OV7610: | |
2336 | case SEN_OV76BE: | |
2337 | hwsbase = 0x38; | |
2338 | hwebase = 0x3a; | |
2339 | vwsbase = vwebase = 0x05; | |
2340 | break; | |
2341 | case SEN_OV6620: | |
2342 | case SEN_OV6630: | |
2343 | hwsbase = 0x38; | |
2344 | hwebase = 0x3a; | |
2345 | vwsbase = 0x05; | |
2346 | vwebase = 0x06; | |
2347 | break; | |
2348 | case SEN_OV7620: | |
2349 | hwsbase = 0x2f; /* From 7620.SET (spec is wrong) */ | |
2350 | hwebase = 0x2f; | |
2351 | vwsbase = vwebase = 0x05; | |
2352 | break; | |
2353 | default: | |
2354 | err("Invalid sensor"); | |
2355 | return -EINVAL; | |
2356 | } | |
2357 | ||
2358 | if (ov->sensor == SEN_OV6620 || ov->sensor == SEN_OV6630) { | |
2359 | /* Note: OV518(+) does downsample on its own) */ | |
2360 | if ((width > 176 && height > 144) | |
2361 | || ov->bclass == BCL_OV518) { /* CIF */ | |
2362 | ret = mode_init_ov_sensor_regs(ov, width, height, | |
2363 | mode, sub_flag, 0); | |
2364 | if (ret < 0) | |
2365 | return ret; | |
2366 | hwscale = 1; | |
2367 | vwscale = 1; /* The datasheet says 0; it's wrong */ | |
2368 | hwsize = 352; | |
2369 | vwsize = 288; | |
2370 | } else if (width > 176 || height > 144) { | |
2371 | err("Illegal dimensions"); | |
2372 | return -EINVAL; | |
2373 | } else { /* QCIF */ | |
2374 | ret = mode_init_ov_sensor_regs(ov, width, height, | |
2375 | mode, sub_flag, 1); | |
2376 | if (ret < 0) | |
2377 | return ret; | |
2378 | hwsize = 176; | |
2379 | vwsize = 144; | |
2380 | } | |
2381 | } else { | |
2382 | if (width > 320 && height > 240) { /* VGA */ | |
2383 | ret = mode_init_ov_sensor_regs(ov, width, height, | |
2384 | mode, sub_flag, 0); | |
2385 | if (ret < 0) | |
2386 | return ret; | |
2387 | hwscale = 2; | |
2388 | vwscale = 1; | |
2389 | hwsize = 640; | |
2390 | vwsize = 480; | |
2391 | } else if (width > 320 || height > 240) { | |
2392 | err("Illegal dimensions"); | |
2393 | return -EINVAL; | |
2394 | } else { /* QVGA */ | |
2395 | ret = mode_init_ov_sensor_regs(ov, width, height, | |
2396 | mode, sub_flag, 1); | |
2397 | if (ret < 0) | |
2398 | return ret; | |
2399 | hwscale = 1; | |
2400 | hwsize = 320; | |
2401 | vwsize = 240; | |
2402 | } | |
2403 | } | |
2404 | ||
2405 | /* Center the window */ | |
2406 | hoffset = ((hwsize - width) / 2) >> hwscale; | |
2407 | voffset = ((vwsize - height) / 2) >> vwscale; | |
2408 | ||
2409 | /* FIXME! - This needs to be changed to support 160x120 and 6620!!! */ | |
2410 | if (sub_flag) { | |
2411 | i2c_w(ov, 0x17, hwsbase+(ov->subx>>hwscale)); | |
2412 | i2c_w(ov, 0x18, hwebase+((ov->subx+ov->subw)>>hwscale)); | |
2413 | i2c_w(ov, 0x19, vwsbase+(ov->suby>>vwscale)); | |
2414 | i2c_w(ov, 0x1a, vwebase+((ov->suby+ov->subh)>>vwscale)); | |
2415 | } else { | |
2416 | i2c_w(ov, 0x17, hwsbase + hoffset); | |
2417 | i2c_w(ov, 0x18, hwebase + hoffset + (hwsize>>hwscale)); | |
2418 | i2c_w(ov, 0x19, vwsbase + voffset); | |
2419 | i2c_w(ov, 0x1a, vwebase + voffset + (vwsize>>vwscale)); | |
2420 | } | |
2421 | ||
2422 | #ifdef OV511_DEBUG | |
2423 | if (dump_sensor) | |
2424 | dump_i2c_regs(ov); | |
2425 | #endif | |
2426 | ||
2427 | return 0; | |
2428 | } | |
2429 | ||
2430 | /* Set up the OV511/OV511+ with the given image parameters. | |
2431 | * | |
2432 | * Do not put any sensor-specific code in here (including I2C I/O functions) | |
2433 | */ | |
2434 | static int | |
2435 | ov511_mode_init_regs(struct usb_ov511 *ov, | |
2436 | int width, int height, int mode, int sub_flag) | |
2437 | { | |
2438 | int hsegs, vsegs; | |
2439 | ||
2440 | if (sub_flag) { | |
2441 | width = ov->subw; | |
2442 | height = ov->subh; | |
2443 | } | |
2444 | ||
2445 | PDEBUG(3, "width:%d, height:%d, mode:%d, sub:%d", | |
2446 | width, height, mode, sub_flag); | |
2447 | ||
2448 | // FIXME: This should be moved to a 7111a-specific function once | |
2449 | // subcapture is dealt with properly | |
2450 | if (ov->sensor == SEN_SAA7111A) { | |
2451 | if (width == 320 && height == 240) { | |
2452 | /* No need to do anything special */ | |
2453 | } else if (width == 640 && height == 480) { | |
2454 | /* Set the OV511 up as 320x480, but keep the | |
2455 | * V4L resolution as 640x480 */ | |
2456 | width = 320; | |
2457 | } else { | |
2458 | err("SAA7111A only allows 320x240 or 640x480"); | |
2459 | return -EINVAL; | |
2460 | } | |
2461 | } | |
2462 | ||
2463 | /* Make sure width and height are a multiple of 8 */ | |
2464 | if (width % 8 || height % 8) { | |
2465 | err("Invalid size (%d, %d) (mode = %d)", width, height, mode); | |
2466 | return -EINVAL; | |
2467 | } | |
2468 | ||
2469 | if (width < ov->minwidth || height < ov->minheight) { | |
2470 | err("Requested dimensions are too small"); | |
2471 | return -EINVAL; | |
2472 | } | |
2473 | ||
2474 | if (ov51x_stop(ov) < 0) | |
2475 | return -EIO; | |
2476 | ||
2477 | if (mode == VIDEO_PALETTE_GREY) { | |
2478 | reg_w(ov, R511_CAM_UV_EN, 0x00); | |
2479 | reg_w(ov, R511_SNAP_UV_EN, 0x00); | |
2480 | reg_w(ov, R511_SNAP_OPTS, 0x01); | |
2481 | } else { | |
2482 | reg_w(ov, R511_CAM_UV_EN, 0x01); | |
2483 | reg_w(ov, R511_SNAP_UV_EN, 0x01); | |
2484 | reg_w(ov, R511_SNAP_OPTS, 0x03); | |
2485 | } | |
2486 | ||
2487 | /* Here I'm assuming that snapshot size == image size. | |
2488 | * I hope that's always true. --claudio | |
2489 | */ | |
2490 | hsegs = (width >> 3) - 1; | |
2491 | vsegs = (height >> 3) - 1; | |
2492 | ||
2493 | reg_w(ov, R511_CAM_PXCNT, hsegs); | |
2494 | reg_w(ov, R511_CAM_LNCNT, vsegs); | |
2495 | reg_w(ov, R511_CAM_PXDIV, 0x00); | |
2496 | reg_w(ov, R511_CAM_LNDIV, 0x00); | |
2497 | ||
2498 | /* YUV420, low pass filter on */ | |
2499 | reg_w(ov, R511_CAM_OPTS, 0x03); | |
2500 | ||
2501 | /* Snapshot additions */ | |
2502 | reg_w(ov, R511_SNAP_PXCNT, hsegs); | |
2503 | reg_w(ov, R511_SNAP_LNCNT, vsegs); | |
2504 | reg_w(ov, R511_SNAP_PXDIV, 0x00); | |
2505 | reg_w(ov, R511_SNAP_LNDIV, 0x00); | |
2506 | ||
2507 | if (ov->compress) { | |
2508 | /* Enable Y and UV quantization and compression */ | |
2509 | reg_w(ov, R511_COMP_EN, 0x07); | |
2510 | reg_w(ov, R511_COMP_LUT_EN, 0x03); | |
2511 | ov51x_reset(ov, OV511_RESET_OMNICE); | |
2512 | } | |
2513 | ||
2514 | if (ov51x_restart(ov) < 0) | |
2515 | return -EIO; | |
2516 | ||
2517 | return 0; | |
2518 | } | |
2519 | ||
2520 | /* Sets up the OV518/OV518+ with the given image parameters | |
2521 | * | |
2522 | * OV518 needs a completely different approach, until we can figure out what | |
2523 | * the individual registers do. Also, only 15 FPS is supported now. | |
2524 | * | |
2525 | * Do not put any sensor-specific code in here (including I2C I/O functions) | |
2526 | */ | |
2527 | static int | |
2528 | ov518_mode_init_regs(struct usb_ov511 *ov, | |
2529 | int width, int height, int mode, int sub_flag) | |
2530 | { | |
2531 | int hsegs, vsegs, hi_res; | |
2532 | ||
2533 | if (sub_flag) { | |
2534 | width = ov->subw; | |
2535 | height = ov->subh; | |
2536 | } | |
2537 | ||
2538 | PDEBUG(3, "width:%d, height:%d, mode:%d, sub:%d", | |
2539 | width, height, mode, sub_flag); | |
2540 | ||
2541 | if (width % 16 || height % 8) { | |
2542 | err("Invalid size (%d, %d)", width, height); | |
2543 | return -EINVAL; | |
2544 | } | |
2545 | ||
2546 | if (width < ov->minwidth || height < ov->minheight) { | |
2547 | err("Requested dimensions are too small"); | |
2548 | return -EINVAL; | |
2549 | } | |
2550 | ||
2551 | if (width >= 320 && height >= 240) { | |
2552 | hi_res = 1; | |
2553 | } else if (width >= 320 || height >= 240) { | |
2554 | err("Invalid width/height combination (%d, %d)", width, height); | |
2555 | return -EINVAL; | |
2556 | } else { | |
2557 | hi_res = 0; | |
2558 | } | |
2559 | ||
2560 | if (ov51x_stop(ov) < 0) | |
2561 | return -EIO; | |
2562 | ||
2563 | /******** Set the mode ********/ | |
2564 | ||
2565 | reg_w(ov, 0x2b, 0); | |
2566 | reg_w(ov, 0x2c, 0); | |
2567 | reg_w(ov, 0x2d, 0); | |
2568 | reg_w(ov, 0x2e, 0); | |
2569 | reg_w(ov, 0x3b, 0); | |
2570 | reg_w(ov, 0x3c, 0); | |
2571 | reg_w(ov, 0x3d, 0); | |
2572 | reg_w(ov, 0x3e, 0); | |
2573 | ||
2574 | if (ov->bridge == BRG_OV518 && ov518_color) { | |
2575 | /* OV518 needs U and V swapped */ | |
2576 | i2c_w_mask(ov, 0x15, 0x00, 0x01); | |
2577 | ||
d56410e0 | 2578 | if (mode == VIDEO_PALETTE_GREY) { |
1da177e4 LT |
2579 | /* Set 16-bit input format (UV data are ignored) */ |
2580 | reg_w_mask(ov, 0x20, 0x00, 0x08); | |
2581 | ||
2582 | /* Set 8-bit (4:0:0) output format */ | |
2583 | reg_w_mask(ov, 0x28, 0x00, 0xf0); | |
2584 | reg_w_mask(ov, 0x38, 0x00, 0xf0); | |
2585 | } else { | |
2586 | /* Set 8-bit (YVYU) input format */ | |
2587 | reg_w_mask(ov, 0x20, 0x08, 0x08); | |
2588 | ||
2589 | /* Set 12-bit (4:2:0) output format */ | |
2590 | reg_w_mask(ov, 0x28, 0x80, 0xf0); | |
2591 | reg_w_mask(ov, 0x38, 0x80, 0xf0); | |
2592 | } | |
2593 | } else { | |
2594 | reg_w(ov, 0x28, (mode == VIDEO_PALETTE_GREY) ? 0x00:0x80); | |
2595 | reg_w(ov, 0x38, (mode == VIDEO_PALETTE_GREY) ? 0x00:0x80); | |
2596 | } | |
2597 | ||
2598 | hsegs = width / 16; | |
2599 | vsegs = height / 4; | |
2600 | ||
2601 | reg_w(ov, 0x29, hsegs); | |
2602 | reg_w(ov, 0x2a, vsegs); | |
2603 | ||
2604 | reg_w(ov, 0x39, hsegs); | |
2605 | reg_w(ov, 0x3a, vsegs); | |
2606 | ||
2607 | /* Windows driver does this here; who knows why */ | |
2608 | reg_w(ov, 0x2f, 0x80); | |
2609 | ||
2610 | /******** Set the framerate (to 15 FPS) ********/ | |
2611 | ||
2612 | /* Mode independent, but framerate dependent, regs */ | |
2613 | reg_w(ov, 0x51, 0x02); /* Clock divider; lower==faster */ | |
2614 | reg_w(ov, 0x22, 0x18); | |
2615 | reg_w(ov, 0x23, 0xff); | |
2616 | ||
2617 | if (ov->bridge == BRG_OV518PLUS) | |
2618 | reg_w(ov, 0x21, 0x19); | |
2619 | else | |
2620 | reg_w(ov, 0x71, 0x19); /* Compression-related? */ | |
2621 | ||
2622 | // FIXME: Sensor-specific | |
2623 | /* Bit 5 is what matters here. Of course, it is "reserved" */ | |
2624 | i2c_w(ov, 0x54, 0x23); | |
2625 | ||
2626 | reg_w(ov, 0x2f, 0x80); | |
2627 | ||
2628 | if (ov->bridge == BRG_OV518PLUS) { | |
2629 | reg_w(ov, 0x24, 0x94); | |
2630 | reg_w(ov, 0x25, 0x90); | |
2631 | ov518_reg_w32(ov, 0xc4, 400, 2); /* 190h */ | |
2632 | ov518_reg_w32(ov, 0xc6, 540, 2); /* 21ch */ | |
2633 | ov518_reg_w32(ov, 0xc7, 540, 2); /* 21ch */ | |
2634 | ov518_reg_w32(ov, 0xc8, 108, 2); /* 6ch */ | |
2635 | ov518_reg_w32(ov, 0xca, 131098, 3); /* 2001ah */ | |
2636 | ov518_reg_w32(ov, 0xcb, 532, 2); /* 214h */ | |
2637 | ov518_reg_w32(ov, 0xcc, 2400, 2); /* 960h */ | |
2638 | ov518_reg_w32(ov, 0xcd, 32, 2); /* 20h */ | |
2639 | ov518_reg_w32(ov, 0xce, 608, 2); /* 260h */ | |
2640 | } else { | |
2641 | reg_w(ov, 0x24, 0x9f); | |
2642 | reg_w(ov, 0x25, 0x90); | |
2643 | ov518_reg_w32(ov, 0xc4, 400, 2); /* 190h */ | |
2644 | ov518_reg_w32(ov, 0xc6, 500, 2); /* 1f4h */ | |
2645 | ov518_reg_w32(ov, 0xc7, 500, 2); /* 1f4h */ | |
2646 | ov518_reg_w32(ov, 0xc8, 142, 2); /* 8eh */ | |
2647 | ov518_reg_w32(ov, 0xca, 131098, 3); /* 2001ah */ | |
2648 | ov518_reg_w32(ov, 0xcb, 532, 2); /* 214h */ | |
2649 | ov518_reg_w32(ov, 0xcc, 2000, 2); /* 7d0h */ | |
2650 | ov518_reg_w32(ov, 0xcd, 32, 2); /* 20h */ | |
2651 | ov518_reg_w32(ov, 0xce, 608, 2); /* 260h */ | |
2652 | } | |
2653 | ||
2654 | reg_w(ov, 0x2f, 0x80); | |
2655 | ||
2656 | if (ov51x_restart(ov) < 0) | |
2657 | return -EIO; | |
2658 | ||
2659 | /* Reset it just for good measure */ | |
2660 | if (ov51x_reset(ov, OV511_RESET_NOREGS) < 0) | |
2661 | return -EIO; | |
2662 | ||
2663 | return 0; | |
2664 | } | |
2665 | ||
2666 | /* This is a wrapper around the OV511, OV518, and sensor specific functions */ | |
2667 | static int | |
2668 | mode_init_regs(struct usb_ov511 *ov, | |
2669 | int width, int height, int mode, int sub_flag) | |
2670 | { | |
2671 | int rc = 0; | |
2672 | ||
2673 | if (!ov || !ov->dev) | |
2674 | return -EFAULT; | |
2675 | ||
2676 | if (ov->bclass == BCL_OV518) { | |
2677 | rc = ov518_mode_init_regs(ov, width, height, mode, sub_flag); | |
2678 | } else { | |
2679 | rc = ov511_mode_init_regs(ov, width, height, mode, sub_flag); | |
2680 | } | |
2681 | ||
2682 | if (FATAL_ERROR(rc)) | |
2683 | return rc; | |
2684 | ||
2685 | switch (ov->sensor) { | |
2686 | case SEN_OV7610: | |
2687 | case SEN_OV7620: | |
2688 | case SEN_OV76BE: | |
2689 | case SEN_OV8600: | |
2690 | case SEN_OV6620: | |
2691 | case SEN_OV6630: | |
2692 | rc = set_ov_sensor_window(ov, width, height, mode, sub_flag); | |
2693 | break; | |
2694 | case SEN_KS0127: | |
2695 | case SEN_KS0127B: | |
2696 | err("KS0127-series decoders not supported yet"); | |
2697 | rc = -EINVAL; | |
2698 | break; | |
2699 | case SEN_SAA7111A: | |
2700 | // rc = mode_init_saa_sensor_regs(ov, width, height, mode, | |
2701 | // sub_flag); | |
2702 | ||
2703 | PDEBUG(1, "SAA status = 0x%02X", i2c_r(ov, 0x1f)); | |
2704 | break; | |
2705 | default: | |
2706 | err("Unknown sensor"); | |
2707 | rc = -EINVAL; | |
2708 | } | |
2709 | ||
2710 | if (FATAL_ERROR(rc)) | |
2711 | return rc; | |
2712 | ||
2713 | /* Sensor-independent settings */ | |
2714 | rc = sensor_set_auto_brightness(ov, ov->auto_brt); | |
2715 | if (FATAL_ERROR(rc)) | |
2716 | return rc; | |
2717 | ||
2718 | rc = sensor_set_auto_exposure(ov, ov->auto_exp); | |
2719 | if (FATAL_ERROR(rc)) | |
2720 | return rc; | |
2721 | ||
2722 | rc = sensor_set_banding_filter(ov, bandingfilter); | |
2723 | if (FATAL_ERROR(rc)) | |
2724 | return rc; | |
2725 | ||
2726 | if (ov->lightfreq) { | |
2727 | rc = sensor_set_light_freq(ov, lightfreq); | |
2728 | if (FATAL_ERROR(rc)) | |
2729 | return rc; | |
2730 | } | |
2731 | ||
2732 | rc = sensor_set_backlight(ov, ov->backlight); | |
2733 | if (FATAL_ERROR(rc)) | |
2734 | return rc; | |
2735 | ||
2736 | rc = sensor_set_mirror(ov, ov->mirror); | |
2737 | if (FATAL_ERROR(rc)) | |
2738 | return rc; | |
2739 | ||
2740 | return 0; | |
2741 | } | |
2742 | ||
2743 | /* This sets the default image parameters. This is useful for apps that use | |
2744 | * read() and do not set these. | |
2745 | */ | |
2746 | static int | |
2747 | ov51x_set_default_params(struct usb_ov511 *ov) | |
2748 | { | |
2749 | int i; | |
2750 | ||
2751 | /* Set default sizes in case IOCTL (VIDIOCMCAPTURE) is not used | |
2752 | * (using read() instead). */ | |
2753 | for (i = 0; i < OV511_NUMFRAMES; i++) { | |
2754 | ov->frame[i].width = ov->maxwidth; | |
2755 | ov->frame[i].height = ov->maxheight; | |
2756 | ov->frame[i].bytes_read = 0; | |
2757 | if (force_palette) | |
2758 | ov->frame[i].format = force_palette; | |
2759 | else | |
2760 | ov->frame[i].format = VIDEO_PALETTE_YUV420; | |
2761 | ||
2762 | ov->frame[i].depth = get_depth(ov->frame[i].format); | |
2763 | } | |
2764 | ||
2765 | PDEBUG(3, "%dx%d, %s", ov->maxwidth, ov->maxheight, | |
2766 | symbolic(v4l1_plist, ov->frame[0].format)); | |
2767 | ||
2768 | /* Initialize to max width/height, YUV420 or RGB24 (if supported) */ | |
2769 | if (mode_init_regs(ov, ov->maxwidth, ov->maxheight, | |
2770 | ov->frame[0].format, 0) < 0) | |
2771 | return -EINVAL; | |
2772 | ||
2773 | return 0; | |
2774 | } | |
2775 | ||
2776 | /********************************************************************** | |
2777 | * | |
2778 | * Video decoder stuff | |
2779 | * | |
2780 | **********************************************************************/ | |
2781 | ||
2782 | /* Set analog input port of decoder */ | |
2783 | static int | |
2784 | decoder_set_input(struct usb_ov511 *ov, int input) | |
2785 | { | |
2786 | PDEBUG(4, "port %d", input); | |
2787 | ||
2788 | switch (ov->sensor) { | |
2789 | case SEN_SAA7111A: | |
2790 | { | |
2791 | /* Select mode */ | |
2792 | i2c_w_mask(ov, 0x02, input, 0x07); | |
2793 | /* Bypass chrominance trap for modes 4..7 */ | |
2794 | i2c_w_mask(ov, 0x09, (input > 3) ? 0x80:0x00, 0x80); | |
2795 | break; | |
2796 | } | |
2797 | default: | |
2798 | return -EINVAL; | |
2799 | } | |
2800 | ||
2801 | return 0; | |
2802 | } | |
2803 | ||
2804 | /* Get ASCII name of video input */ | |
2805 | static int | |
2806 | decoder_get_input_name(struct usb_ov511 *ov, int input, char *name) | |
2807 | { | |
2808 | switch (ov->sensor) { | |
2809 | case SEN_SAA7111A: | |
2810 | { | |
2811 | if (input < 0 || input > 7) | |
2812 | return -EINVAL; | |
2813 | else if (input < 4) | |
2814 | sprintf(name, "CVBS-%d", input); | |
2815 | else // if (input < 8) | |
2816 | sprintf(name, "S-Video-%d", input - 4); | |
2817 | break; | |
2818 | } | |
2819 | default: | |
2820 | sprintf(name, "%s", "Camera"); | |
2821 | } | |
2822 | ||
2823 | return 0; | |
2824 | } | |
2825 | ||
2826 | /* Set norm (NTSC, PAL, SECAM, AUTO) */ | |
2827 | static int | |
2828 | decoder_set_norm(struct usb_ov511 *ov, int norm) | |
2829 | { | |
2830 | PDEBUG(4, "%d", norm); | |
2831 | ||
2832 | switch (ov->sensor) { | |
2833 | case SEN_SAA7111A: | |
2834 | { | |
2835 | int reg_8, reg_e; | |
2836 | ||
2837 | if (norm == VIDEO_MODE_NTSC) { | |
2838 | reg_8 = 0x40; /* 60 Hz */ | |
2839 | reg_e = 0x00; /* NTSC M / PAL BGHI */ | |
2840 | } else if (norm == VIDEO_MODE_PAL) { | |
2841 | reg_8 = 0x00; /* 50 Hz */ | |
2842 | reg_e = 0x00; /* NTSC M / PAL BGHI */ | |
2843 | } else if (norm == VIDEO_MODE_AUTO) { | |
2844 | reg_8 = 0x80; /* Auto field detect */ | |
2845 | reg_e = 0x00; /* NTSC M / PAL BGHI */ | |
2846 | } else if (norm == VIDEO_MODE_SECAM) { | |
2847 | reg_8 = 0x00; /* 50 Hz */ | |
2848 | reg_e = 0x50; /* SECAM / PAL 4.43 */ | |
2849 | } else { | |
2850 | return -EINVAL; | |
2851 | } | |
2852 | ||
2853 | i2c_w_mask(ov, 0x08, reg_8, 0xc0); | |
2854 | i2c_w_mask(ov, 0x0e, reg_e, 0x70); | |
2855 | break; | |
2856 | } | |
2857 | default: | |
2858 | return -EINVAL; | |
2859 | } | |
2860 | ||
2861 | return 0; | |
2862 | } | |
2863 | ||
2864 | /********************************************************************** | |
2865 | * | |
2866 | * Raw data parsing | |
2867 | * | |
2868 | **********************************************************************/ | |
2869 | ||
2870 | /* Copies a 64-byte segment at pIn to an 8x8 block at pOut. The width of the | |
2871 | * image at pOut is specified by w. | |
2872 | */ | |
2873 | static inline void | |
2874 | make_8x8(unsigned char *pIn, unsigned char *pOut, int w) | |
2875 | { | |
2876 | unsigned char *pOut1 = pOut; | |
2877 | int x, y; | |
2878 | ||
2879 | for (y = 0; y < 8; y++) { | |
2880 | pOut1 = pOut; | |
2881 | for (x = 0; x < 8; x++) { | |
2882 | *pOut1++ = *pIn++; | |
2883 | } | |
2884 | pOut += w; | |
2885 | } | |
2886 | } | |
2887 | ||
2888 | /* | |
2889 | * For RAW BW (YUV 4:0:0) images, data show up in 256 byte segments. | |
2890 | * The segments represent 4 squares of 8x8 pixels as follows: | |
2891 | * | |
2892 | * 0 1 ... 7 64 65 ... 71 ... 192 193 ... 199 | |
2893 | * 8 9 ... 15 72 73 ... 79 200 201 ... 207 | |
2894 | * ... ... ... | |
2895 | * 56 57 ... 63 120 121 ... 127 248 249 ... 255 | |
2896 | * | |
d56410e0 | 2897 | */ |
1da177e4 LT |
2898 | static void |
2899 | yuv400raw_to_yuv400p(struct ov511_frame *frame, | |
2900 | unsigned char *pIn0, unsigned char *pOut0) | |
2901 | { | |
2902 | int x, y; | |
2903 | unsigned char *pIn, *pOut, *pOutLine; | |
2904 | ||
2905 | /* Copy Y */ | |
2906 | pIn = pIn0; | |
2907 | pOutLine = pOut0; | |
2908 | for (y = 0; y < frame->rawheight - 1; y += 8) { | |
2909 | pOut = pOutLine; | |
2910 | for (x = 0; x < frame->rawwidth - 1; x += 8) { | |
2911 | make_8x8(pIn, pOut, frame->rawwidth); | |
2912 | pIn += 64; | |
2913 | pOut += 8; | |
2914 | } | |
2915 | pOutLine += 8 * frame->rawwidth; | |
2916 | } | |
2917 | } | |
2918 | ||
2919 | /* | |
2920 | * For YUV 4:2:0 images, the data show up in 384 byte segments. | |
2921 | * The first 64 bytes of each segment are U, the next 64 are V. The U and | |
2922 | * V are arranged as follows: | |
2923 | * | |
2924 | * 0 1 ... 7 | |
2925 | * 8 9 ... 15 | |
d56410e0 | 2926 | * ... |
1da177e4 LT |
2927 | * 56 57 ... 63 |
2928 | * | |
2929 | * U and V are shipped at half resolution (1 U,V sample -> one 2x2 block). | |
2930 | * | |
2931 | * The next 256 bytes are full resolution Y data and represent 4 squares | |
2932 | * of 8x8 pixels as follows: | |
2933 | * | |
2934 | * 0 1 ... 7 64 65 ... 71 ... 192 193 ... 199 | |
2935 | * 8 9 ... 15 72 73 ... 79 200 201 ... 207 | |
2936 | * ... ... ... | |
2937 | * 56 57 ... 63 120 121 ... 127 ... 248 249 ... 255 | |
2938 | * | |
2939 | * Note that the U and V data in one segment represent a 16 x 16 pixel | |
2940 | * area, but the Y data represent a 32 x 8 pixel area. If the width is not an | |
2941 | * even multiple of 32, the extra 8x8 blocks within a 32x8 block belong to the | |
2942 | * next horizontal stripe. | |
2943 | * | |
2944 | * If dumppix module param is set, _parse_data just dumps the incoming segments, | |
2945 | * verbatim, in order, into the frame. When used with vidcat -f ppm -s 640x480 | |
2946 | * this puts the data on the standard output and can be analyzed with the | |
2947 | * parseppm.c utility I wrote. That's a much faster way for figuring out how | |
2948 | * these data are scrambled. | |
2949 | */ | |
2950 | ||
2951 | /* Converts from raw, uncompressed segments at pIn0 to a YUV420P frame at pOut0. | |
2952 | * | |
2953 | * FIXME: Currently only handles width and height that are multiples of 16 | |
2954 | */ | |
2955 | static void | |
2956 | yuv420raw_to_yuv420p(struct ov511_frame *frame, | |
2957 | unsigned char *pIn0, unsigned char *pOut0) | |
2958 | { | |
2959 | int k, x, y; | |
2960 | unsigned char *pIn, *pOut, *pOutLine; | |
2961 | const unsigned int a = frame->rawwidth * frame->rawheight; | |
2962 | const unsigned int w = frame->rawwidth / 2; | |
2963 | ||
2964 | /* Copy U and V */ | |
2965 | pIn = pIn0; | |
2966 | pOutLine = pOut0 + a; | |
2967 | for (y = 0; y < frame->rawheight - 1; y += 16) { | |
2968 | pOut = pOutLine; | |
2969 | for (x = 0; x < frame->rawwidth - 1; x += 16) { | |
2970 | make_8x8(pIn, pOut, w); | |
2971 | make_8x8(pIn + 64, pOut + a/4, w); | |
2972 | pIn += 384; | |
2973 | pOut += 8; | |
2974 | } | |
2975 | pOutLine += 8 * w; | |
2976 | } | |
2977 | ||
2978 | /* Copy Y */ | |
2979 | pIn = pIn0 + 128; | |
2980 | pOutLine = pOut0; | |
2981 | k = 0; | |
2982 | for (y = 0; y < frame->rawheight - 1; y += 8) { | |
2983 | pOut = pOutLine; | |
2984 | for (x = 0; x < frame->rawwidth - 1; x += 8) { | |
2985 | make_8x8(pIn, pOut, frame->rawwidth); | |
2986 | pIn += 64; | |
2987 | pOut += 8; | |
2988 | if ((++k) > 3) { | |
2989 | k = 0; | |
2990 | pIn += 128; | |
2991 | } | |
2992 | } | |
2993 | pOutLine += 8 * frame->rawwidth; | |
2994 | } | |
2995 | } | |
2996 | ||
2997 | /********************************************************************** | |
2998 | * | |
2999 | * Decompression | |
3000 | * | |
3001 | **********************************************************************/ | |
3002 | ||
1da177e4 LT |
3003 | static int |
3004 | request_decompressor(struct usb_ov511 *ov) | |
3005 | { | |
532a3de1 AB |
3006 | if (ov->bclass == BCL_OV511 || ov->bclass == BCL_OV518) { |
3007 | err("No decompressor available"); | |
1da177e4 LT |
3008 | } else { |
3009 | err("Unknown bridge"); | |
3010 | } | |
3011 | ||
1da177e4 LT |
3012 | return -ENOSYS; |
3013 | } | |
3014 | ||
1da177e4 LT |
3015 | static void |
3016 | decompress(struct usb_ov511 *ov, struct ov511_frame *frame, | |
3017 | unsigned char *pIn0, unsigned char *pOut0) | |
3018 | { | |
3019 | if (!ov->decomp_ops) | |
3020 | if (request_decompressor(ov)) | |
3021 | return; | |
3022 | ||
1da177e4 LT |
3023 | } |
3024 | ||
3025 | /********************************************************************** | |
3026 | * | |
3027 | * Format conversion | |
3028 | * | |
3029 | **********************************************************************/ | |
3030 | ||
3031 | /* Fuses even and odd fields together, and doubles width. | |
3032 | * INPUT: an odd field followed by an even field at pIn0, in YUV planar format | |
3033 | * OUTPUT: a normal YUV planar image, with correct aspect ratio | |
3034 | */ | |
3035 | static void | |
3036 | deinterlace(struct ov511_frame *frame, int rawformat, | |
d56410e0 | 3037 | unsigned char *pIn0, unsigned char *pOut0) |
1da177e4 LT |
3038 | { |
3039 | const int fieldheight = frame->rawheight / 2; | |
3040 | const int fieldpix = fieldheight * frame->rawwidth; | |
3041 | const int w = frame->width; | |
3042 | int x, y; | |
3043 | unsigned char *pInEven, *pInOdd, *pOut; | |
3044 | ||
3045 | PDEBUG(5, "fieldheight=%d", fieldheight); | |
3046 | ||
3047 | if (frame->rawheight != frame->height) { | |
3048 | err("invalid height"); | |
3049 | return; | |
3050 | } | |
3051 | ||
3052 | if ((frame->rawwidth * 2) != frame->width) { | |
3053 | err("invalid width"); | |
3054 | return; | |
3055 | } | |
3056 | ||
3057 | /* Y */ | |
3058 | pInOdd = pIn0; | |
3059 | pInEven = pInOdd + fieldpix; | |
3060 | pOut = pOut0; | |
3061 | for (y = 0; y < fieldheight; y++) { | |
3062 | for (x = 0; x < frame->rawwidth; x++) { | |
3063 | *pOut = *pInEven; | |
3064 | *(pOut+1) = *pInEven++; | |
3065 | *(pOut+w) = *pInOdd; | |
3066 | *(pOut+w+1) = *pInOdd++; | |
3067 | pOut += 2; | |
3068 | } | |
3069 | pOut += w; | |
3070 | } | |
3071 | ||
3072 | if (rawformat == RAWFMT_YUV420) { | |
3073 | /* U */ | |
3074 | pInOdd = pIn0 + fieldpix * 2; | |
3075 | pInEven = pInOdd + fieldpix / 4; | |
3076 | for (y = 0; y < fieldheight / 2; y++) { | |
3077 | for (x = 0; x < frame->rawwidth / 2; x++) { | |
3078 | *pOut = *pInEven; | |
3079 | *(pOut+1) = *pInEven++; | |
3080 | *(pOut+w/2) = *pInOdd; | |
3081 | *(pOut+w/2+1) = *pInOdd++; | |
3082 | pOut += 2; | |
3083 | } | |
3084 | pOut += w/2; | |
3085 | } | |
3086 | /* V */ | |
3087 | pInOdd = pIn0 + fieldpix * 2 + fieldpix / 2; | |
3088 | pInEven = pInOdd + fieldpix / 4; | |
3089 | for (y = 0; y < fieldheight / 2; y++) { | |
3090 | for (x = 0; x < frame->rawwidth / 2; x++) { | |
3091 | *pOut = *pInEven; | |
3092 | *(pOut+1) = *pInEven++; | |
3093 | *(pOut+w/2) = *pInOdd; | |
3094 | *(pOut+w/2+1) = *pInOdd++; | |
3095 | pOut += 2; | |
3096 | } | |
3097 | pOut += w/2; | |
3098 | } | |
3099 | } | |
3100 | } | |
3101 | ||
3102 | static void | |
3103 | ov51x_postprocess_grey(struct usb_ov511 *ov, struct ov511_frame *frame) | |
3104 | { | |
3105 | /* Deinterlace frame, if necessary */ | |
3106 | if (ov->sensor == SEN_SAA7111A && frame->rawheight >= 480) { | |
3107 | if (frame->compressed) | |
3108 | decompress(ov, frame, frame->rawdata, | |
3109 | frame->tempdata); | |
3110 | else | |
3111 | yuv400raw_to_yuv400p(frame, frame->rawdata, | |
3112 | frame->tempdata); | |
3113 | ||
3114 | deinterlace(frame, RAWFMT_YUV400, frame->tempdata, | |
d56410e0 | 3115 | frame->data); |
1da177e4 LT |
3116 | } else { |
3117 | if (frame->compressed) | |
3118 | decompress(ov, frame, frame->rawdata, | |
3119 | frame->data); | |
3120 | else | |
3121 | yuv400raw_to_yuv400p(frame, frame->rawdata, | |
3122 | frame->data); | |
3123 | } | |
3124 | } | |
3125 | ||
3126 | /* Process raw YUV420 data into standard YUV420P */ | |
3127 | static void | |
3128 | ov51x_postprocess_yuv420(struct usb_ov511 *ov, struct ov511_frame *frame) | |
3129 | { | |
3130 | /* Deinterlace frame, if necessary */ | |
3131 | if (ov->sensor == SEN_SAA7111A && frame->rawheight >= 480) { | |
3132 | if (frame->compressed) | |
3133 | decompress(ov, frame, frame->rawdata, frame->tempdata); | |
3134 | else | |
3135 | yuv420raw_to_yuv420p(frame, frame->rawdata, | |
3136 | frame->tempdata); | |
3137 | ||
3138 | deinterlace(frame, RAWFMT_YUV420, frame->tempdata, | |
d56410e0 | 3139 | frame->data); |
1da177e4 LT |
3140 | } else { |
3141 | if (frame->compressed) | |
3142 | decompress(ov, frame, frame->rawdata, frame->data); | |
3143 | else | |
3144 | yuv420raw_to_yuv420p(frame, frame->rawdata, | |
3145 | frame->data); | |
3146 | } | |
3147 | } | |
3148 | ||
3149 | /* Post-processes the specified frame. This consists of: | |
3150 | * 1. Decompress frame, if necessary | |
3151 | * 2. Deinterlace frame and scale to proper size, if necessary | |
3152 | * 3. Convert from YUV planar to destination format, if necessary | |
3153 | * 4. Fix the RGB offset, if necessary | |
3154 | */ | |
3155 | static void | |
3156 | ov51x_postprocess(struct usb_ov511 *ov, struct ov511_frame *frame) | |
3157 | { | |
3158 | if (dumppix) { | |
3159 | memset(frame->data, 0, | |
3160 | MAX_DATA_SIZE(ov->maxwidth, ov->maxheight)); | |
3161 | PDEBUG(4, "Dumping %d bytes", frame->bytes_recvd); | |
3162 | memcpy(frame->data, frame->rawdata, frame->bytes_recvd); | |
3163 | } else { | |
3164 | switch (frame->format) { | |
3165 | case VIDEO_PALETTE_GREY: | |
3166 | ov51x_postprocess_grey(ov, frame); | |
3167 | break; | |
3168 | case VIDEO_PALETTE_YUV420: | |
3169 | case VIDEO_PALETTE_YUV420P: | |
3170 | ov51x_postprocess_yuv420(ov, frame); | |
3171 | break; | |
3172 | default: | |
3173 | err("Cannot convert data to %s", | |
3174 | symbolic(v4l1_plist, frame->format)); | |
3175 | } | |
3176 | } | |
3177 | } | |
3178 | ||
3179 | /********************************************************************** | |
3180 | * | |
3181 | * OV51x data transfer, IRQ handler | |
3182 | * | |
3183 | **********************************************************************/ | |
3184 | ||
3185 | static inline void | |
3186 | ov511_move_data(struct usb_ov511 *ov, unsigned char *in, int n) | |
3187 | { | |
3188 | int num, offset; | |
3189 | int pnum = in[ov->packet_size - 1]; /* Get packet number */ | |
3190 | int max_raw = MAX_RAW_DATA_SIZE(ov->maxwidth, ov->maxheight); | |
3191 | struct ov511_frame *frame = &ov->frame[ov->curframe]; | |
3192 | struct timeval *ts; | |
3193 | ||
3194 | /* SOF/EOF packets have 1st to 8th bytes zeroed and the 9th | |
3195 | * byte non-zero. The EOF packet has image width/height in the | |
3196 | * 10th and 11th bytes. The 9th byte is given as follows: | |
3197 | * | |
3198 | * bit 7: EOF | |
3199 | * 6: compression enabled | |
3200 | * 5: 422/420/400 modes | |
3201 | * 4: 422/420/400 modes | |
3202 | * 3: 1 | |
3203 | * 2: snapshot button on | |
3204 | * 1: snapshot frame | |
3205 | * 0: even/odd field | |
3206 | */ | |
3207 | ||
3208 | if (printph) { | |
3209 | info("ph(%3d): %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x", | |
3210 | pnum, in[0], in[1], in[2], in[3], in[4], in[5], in[6], | |
3211 | in[7], in[8], in[9], in[10], in[11]); | |
3212 | } | |
3213 | ||
3214 | /* Check for SOF/EOF packet */ | |
3215 | if ((in[0] | in[1] | in[2] | in[3] | in[4] | in[5] | in[6] | in[7]) || | |
3216 | (~in[8] & 0x08)) | |
3217 | goto check_middle; | |
3218 | ||
3219 | /* Frame end */ | |
3220 | if (in[8] & 0x80) { | |
3221 | ts = (struct timeval *)(frame->data | |
3222 | + MAX_FRAME_SIZE(ov->maxwidth, ov->maxheight)); | |
3223 | do_gettimeofday(ts); | |
3224 | ||
3225 | /* Get the actual frame size from the EOF header */ | |
3226 | frame->rawwidth = ((int)(in[9]) + 1) * 8; | |
3227 | frame->rawheight = ((int)(in[10]) + 1) * 8; | |
3228 | ||
d56410e0 | 3229 | PDEBUG(4, "Frame end, frame=%d, pnum=%d, w=%d, h=%d, recvd=%d", |
1da177e4 LT |
3230 | ov->curframe, pnum, frame->rawwidth, frame->rawheight, |
3231 | frame->bytes_recvd); | |
3232 | ||
3233 | /* Validate the header data */ | |
3234 | RESTRICT_TO_RANGE(frame->rawwidth, ov->minwidth, ov->maxwidth); | |
3235 | RESTRICT_TO_RANGE(frame->rawheight, ov->minheight, | |
3236 | ov->maxheight); | |
3237 | ||
3238 | /* Don't allow byte count to exceed buffer size */ | |
3239 | RESTRICT_TO_RANGE(frame->bytes_recvd, 8, max_raw); | |
3240 | ||
3241 | if (frame->scanstate == STATE_LINES) { | |
657de3cd | 3242 | int nextf; |
1da177e4 LT |
3243 | |
3244 | frame->grabstate = FRAME_DONE; | |
3245 | wake_up_interruptible(&frame->wq); | |
3246 | ||
3247 | /* If next frame is ready or grabbing, | |
3248 | * point to it */ | |
3249 | nextf = (ov->curframe + 1) % OV511_NUMFRAMES; | |
3250 | if (ov->frame[nextf].grabstate == FRAME_READY | |
3251 | || ov->frame[nextf].grabstate == FRAME_GRABBING) { | |
3252 | ov->curframe = nextf; | |
3253 | ov->frame[nextf].scanstate = STATE_SCANNING; | |
3254 | } else { | |
3255 | if (frame->grabstate == FRAME_DONE) { | |
3256 | PDEBUG(4, "** Frame done **"); | |
3257 | } else { | |
3258 | PDEBUG(4, "Frame not ready? state = %d", | |
3259 | ov->frame[nextf].grabstate); | |
3260 | } | |
3261 | ||
3262 | ov->curframe = -1; | |
3263 | } | |
3264 | } else { | |
3265 | PDEBUG(5, "Frame done, but not scanning"); | |
3266 | } | |
3267 | /* Image corruption caused by misplaced frame->segment = 0 | |
3268 | * fixed by carlosf@conectiva.com.br | |
3269 | */ | |
3270 | } else { | |
3271 | /* Frame start */ | |
3272 | PDEBUG(4, "Frame start, framenum = %d", ov->curframe); | |
3273 | ||
3274 | /* Check to see if it's a snapshot frame */ | |
3275 | /* FIXME?? Should the snapshot reset go here? Performance? */ | |
3276 | if (in[8] & 0x02) { | |
3277 | frame->snapshot = 1; | |
3278 | PDEBUG(3, "snapshot detected"); | |
3279 | } | |
3280 | ||
3281 | frame->scanstate = STATE_LINES; | |
3282 | frame->bytes_recvd = 0; | |
3283 | frame->compressed = in[8] & 0x40; | |
3284 | } | |
3285 | ||
3286 | check_middle: | |
3287 | /* Are we in a frame? */ | |
3288 | if (frame->scanstate != STATE_LINES) { | |
3289 | PDEBUG(5, "Not in a frame; packet skipped"); | |
3290 | return; | |
3291 | } | |
3292 | ||
3293 | /* If frame start, skip header */ | |
3294 | if (frame->bytes_recvd == 0) | |
3295 | offset = 9; | |
3296 | else | |
3297 | offset = 0; | |
3298 | ||
3299 | num = n - offset - 1; | |
3300 | ||
3301 | /* Dump all data exactly as received */ | |
3302 | if (dumppix == 2) { | |
3303 | frame->bytes_recvd += n - 1; | |
3304 | if (frame->bytes_recvd <= max_raw) | |
3305 | memcpy(frame->rawdata + frame->bytes_recvd - (n - 1), | |
3306 | in, n - 1); | |
3307 | else | |
3308 | PDEBUG(3, "Raw data buffer overrun!! (%d)", | |
3309 | frame->bytes_recvd - max_raw); | |
3310 | } else if (!frame->compressed && !remove_zeros) { | |
3311 | frame->bytes_recvd += num; | |
3312 | if (frame->bytes_recvd <= max_raw) | |
3313 | memcpy(frame->rawdata + frame->bytes_recvd - num, | |
3314 | in + offset, num); | |
3315 | else | |
3316 | PDEBUG(3, "Raw data buffer overrun!! (%d)", | |
3317 | frame->bytes_recvd - max_raw); | |
3318 | } else { /* Remove all-zero FIFO lines (aligned 32-byte blocks) */ | |
3319 | int b, read = 0, allzero, copied = 0; | |
3320 | if (offset) { | |
3321 | frame->bytes_recvd += 32 - offset; // Bytes out | |
3322 | memcpy(frame->rawdata, in + offset, 32 - offset); | |
3323 | read += 32; | |
3324 | } | |
3325 | ||
3326 | while (read < n - 1) { | |
3327 | allzero = 1; | |
3328 | for (b = 0; b < 32; b++) { | |
3329 | if (in[read + b]) { | |
3330 | allzero = 0; | |
3331 | break; | |
3332 | } | |
3333 | } | |
3334 | ||
3335 | if (allzero) { | |
3336 | /* Don't copy it */ | |
3337 | } else { | |
3338 | if (frame->bytes_recvd + copied + 32 <= max_raw) | |
3339 | { | |
3340 | memcpy(frame->rawdata | |
3341 | + frame->bytes_recvd + copied, | |
3342 | in + read, 32); | |
3343 | copied += 32; | |
3344 | } else { | |
3345 | PDEBUG(3, "Raw data buffer overrun!!"); | |
3346 | } | |
3347 | } | |
3348 | read += 32; | |
3349 | } | |
3350 | ||
3351 | frame->bytes_recvd += copied; | |
3352 | } | |
3353 | } | |
3354 | ||
3355 | static inline void | |
3356 | ov518_move_data(struct usb_ov511 *ov, unsigned char *in, int n) | |
3357 | { | |
3358 | int max_raw = MAX_RAW_DATA_SIZE(ov->maxwidth, ov->maxheight); | |
3359 | struct ov511_frame *frame = &ov->frame[ov->curframe]; | |
3360 | struct timeval *ts; | |
3361 | ||
3362 | /* Don't copy the packet number byte */ | |
3363 | if (ov->packet_numbering) | |
3364 | --n; | |
3365 | ||
3366 | /* A false positive here is likely, until OVT gives me | |
3367 | * the definitive SOF/EOF format */ | |
3368 | if ((!(in[0] | in[1] | in[2] | in[3] | in[5])) && in[6]) { | |
3369 | if (printph) { | |
3370 | info("ph: %2x %2x %2x %2x %2x %2x %2x %2x", in[0], | |
3371 | in[1], in[2], in[3], in[4], in[5], in[6], in[7]); | |
3372 | } | |
3373 | ||
3374 | if (frame->scanstate == STATE_LINES) { | |
3375 | PDEBUG(4, "Detected frame end/start"); | |
3376 | goto eof; | |
3377 | } else { //scanstate == STATE_SCANNING | |
3378 | /* Frame start */ | |
3379 | PDEBUG(4, "Frame start, framenum = %d", ov->curframe); | |
3380 | goto sof; | |
3381 | } | |
3382 | } else { | |
3383 | goto check_middle; | |
3384 | } | |
3385 | ||
3386 | eof: | |
3387 | ts = (struct timeval *)(frame->data | |
3388 | + MAX_FRAME_SIZE(ov->maxwidth, ov->maxheight)); | |
3389 | do_gettimeofday(ts); | |
3390 | ||
3391 | PDEBUG(4, "Frame end, curframe = %d, hw=%d, vw=%d, recvd=%d", | |
3392 | ov->curframe, | |
3393 | (int)(in[9]), (int)(in[10]), frame->bytes_recvd); | |
3394 | ||
3395 | // FIXME: Since we don't know the header formats yet, | |
3396 | // there is no way to know what the actual image size is | |
3397 | frame->rawwidth = frame->width; | |
3398 | frame->rawheight = frame->height; | |
3399 | ||
3400 | /* Validate the header data */ | |
3401 | RESTRICT_TO_RANGE(frame->rawwidth, ov->minwidth, ov->maxwidth); | |
3402 | RESTRICT_TO_RANGE(frame->rawheight, ov->minheight, ov->maxheight); | |
3403 | ||
3404 | /* Don't allow byte count to exceed buffer size */ | |
3405 | RESTRICT_TO_RANGE(frame->bytes_recvd, 8, max_raw); | |
3406 | ||
3407 | if (frame->scanstate == STATE_LINES) { | |
657de3cd | 3408 | int nextf; |
1da177e4 LT |
3409 | |
3410 | frame->grabstate = FRAME_DONE; | |
3411 | wake_up_interruptible(&frame->wq); | |
3412 | ||
3413 | /* If next frame is ready or grabbing, | |
3414 | * point to it */ | |
3415 | nextf = (ov->curframe + 1) % OV511_NUMFRAMES; | |
3416 | if (ov->frame[nextf].grabstate == FRAME_READY | |
3417 | || ov->frame[nextf].grabstate == FRAME_GRABBING) { | |
3418 | ov->curframe = nextf; | |
3419 | ov->frame[nextf].scanstate = STATE_SCANNING; | |
3420 | frame = &ov->frame[nextf]; | |
3421 | } else { | |
3422 | if (frame->grabstate == FRAME_DONE) { | |
3423 | PDEBUG(4, "** Frame done **"); | |
3424 | } else { | |
3425 | PDEBUG(4, "Frame not ready? state = %d", | |
3426 | ov->frame[nextf].grabstate); | |
3427 | } | |
3428 | ||
3429 | ov->curframe = -1; | |
3430 | PDEBUG(4, "SOF dropped (no active frame)"); | |
3431 | return; /* Nowhere to store this frame */ | |
3432 | } | |
3433 | } | |
3434 | sof: | |
3435 | PDEBUG(4, "Starting capture on frame %d", frame->framenum); | |
3436 | ||
3437 | // Snapshot not reverse-engineered yet. | |
3438 | #if 0 | |
3439 | /* Check to see if it's a snapshot frame */ | |
3440 | /* FIXME?? Should the snapshot reset go here? Performance? */ | |
3441 | if (in[8] & 0x02) { | |
3442 | frame->snapshot = 1; | |
3443 | PDEBUG(3, "snapshot detected"); | |
3444 | } | |
3445 | #endif | |
3446 | frame->scanstate = STATE_LINES; | |
3447 | frame->bytes_recvd = 0; | |
3448 | frame->compressed = 1; | |
3449 | ||
3450 | check_middle: | |
3451 | /* Are we in a frame? */ | |
3452 | if (frame->scanstate != STATE_LINES) { | |
3453 | PDEBUG(4, "scanstate: no SOF yet"); | |
3454 | return; | |
3455 | } | |
3456 | ||
3457 | /* Dump all data exactly as received */ | |
3458 | if (dumppix == 2) { | |
3459 | frame->bytes_recvd += n; | |
3460 | if (frame->bytes_recvd <= max_raw) | |
3461 | memcpy(frame->rawdata + frame->bytes_recvd - n, in, n); | |
3462 | else | |
3463 | PDEBUG(3, "Raw data buffer overrun!! (%d)", | |
3464 | frame->bytes_recvd - max_raw); | |
3465 | } else { | |
3466 | /* All incoming data are divided into 8-byte segments. If the | |
3467 | * segment contains all zero bytes, it must be skipped. These | |
3468 | * zero-segments allow the OV518 to mainain a constant data rate | |
3469 | * regardless of the effectiveness of the compression. Segments | |
3470 | * are aligned relative to the beginning of each isochronous | |
3471 | * packet. The first segment in each image is a header (the | |
3472 | * decompressor skips it later). | |
3473 | */ | |
3474 | ||
3475 | int b, read = 0, allzero, copied = 0; | |
3476 | ||
3477 | while (read < n) { | |
3478 | allzero = 1; | |
3479 | for (b = 0; b < 8; b++) { | |
3480 | if (in[read + b]) { | |
3481 | allzero = 0; | |
3482 | break; | |
3483 | } | |
3484 | } | |
3485 | ||
3486 | if (allzero) { | |
3487 | /* Don't copy it */ | |
3488 | } else { | |
3489 | if (frame->bytes_recvd + copied + 8 <= max_raw) | |
3490 | { | |
3491 | memcpy(frame->rawdata | |
3492 | + frame->bytes_recvd + copied, | |
3493 | in + read, 8); | |
3494 | copied += 8; | |
3495 | } else { | |
3496 | PDEBUG(3, "Raw data buffer overrun!!"); | |
3497 | } | |
3498 | } | |
3499 | read += 8; | |
3500 | } | |
3501 | frame->bytes_recvd += copied; | |
3502 | } | |
3503 | } | |
3504 | ||
3505 | static void | |
7d12e780 | 3506 | ov51x_isoc_irq(struct urb *urb) |
1da177e4 LT |
3507 | { |
3508 | int i; | |
3509 | struct usb_ov511 *ov; | |
3510 | struct ov511_sbuf *sbuf; | |
3511 | ||
3512 | if (!urb->context) { | |
3513 | PDEBUG(4, "no context"); | |
3514 | return; | |
3515 | } | |
3516 | ||
3517 | sbuf = urb->context; | |
3518 | ov = sbuf->ov; | |
3519 | ||
3520 | if (!ov || !ov->dev || !ov->user) { | |
3521 | PDEBUG(4, "no device, or not open"); | |
3522 | return; | |
3523 | } | |
3524 | ||
3525 | if (!ov->streaming) { | |
3526 | PDEBUG(4, "hmmm... not streaming, but got interrupt"); | |
3527 | return; | |
3528 | } | |
3529 | ||
d56410e0 MCC |
3530 | if (urb->status == -ENOENT || urb->status == -ECONNRESET) { |
3531 | PDEBUG(4, "URB unlinked"); | |
3532 | return; | |
3533 | } | |
1da177e4 LT |
3534 | |
3535 | if (urb->status != -EINPROGRESS && urb->status != 0) { | |
3536 | err("ERROR: urb->status=%d: %s", urb->status, | |
3537 | symbolic(urb_errlist, urb->status)); | |
3538 | } | |
3539 | ||
3540 | /* Copy the data received into our frame buffer */ | |
3541 | PDEBUG(5, "sbuf[%d]: Moving %d packets", sbuf->n, | |
3542 | urb->number_of_packets); | |
3543 | for (i = 0; i < urb->number_of_packets; i++) { | |
3544 | /* Warning: Don't call *_move_data() if no frame active! */ | |
3545 | if (ov->curframe >= 0) { | |
3546 | int n = urb->iso_frame_desc[i].actual_length; | |
3547 | int st = urb->iso_frame_desc[i].status; | |
3548 | unsigned char *cdata; | |
3549 | ||
3550 | urb->iso_frame_desc[i].actual_length = 0; | |
3551 | urb->iso_frame_desc[i].status = 0; | |
3552 | ||
3553 | cdata = urb->transfer_buffer | |
3554 | + urb->iso_frame_desc[i].offset; | |
3555 | ||
3556 | if (!n) { | |
3557 | PDEBUG(4, "Zero-length packet"); | |
3558 | continue; | |
3559 | } | |
3560 | ||
3561 | if (st) | |
3562 | PDEBUG(2, "data error: [%d] len=%d, status=%d", | |
3563 | i, n, st); | |
3564 | ||
3565 | if (ov->bclass == BCL_OV511) | |
3566 | ov511_move_data(ov, cdata, n); | |
3567 | else if (ov->bclass == BCL_OV518) | |
3568 | ov518_move_data(ov, cdata, n); | |
3569 | else | |
3570 | err("Unknown bridge device (%d)", ov->bridge); | |
3571 | ||
3572 | } else if (waitqueue_active(&ov->wq)) { | |
3573 | wake_up_interruptible(&ov->wq); | |
3574 | } | |
3575 | } | |
3576 | ||
3577 | /* Resubmit this URB */ | |
3578 | urb->dev = ov->dev; | |
3579 | if ((i = usb_submit_urb(urb, GFP_ATOMIC)) != 0) | |
3580 | err("usb_submit_urb() ret %d", i); | |
3581 | ||
3582 | return; | |
3583 | } | |
3584 | ||
3585 | /**************************************************************************** | |
3586 | * | |
3587 | * Stream initialization and termination | |
3588 | * | |
3589 | ***************************************************************************/ | |
3590 | ||
3591 | static int | |
3592 | ov51x_init_isoc(struct usb_ov511 *ov) | |
3593 | { | |
3594 | struct urb *urb; | |
3595 | int fx, err, n, size; | |
3596 | ||
3597 | PDEBUG(3, "*** Initializing capture ***"); | |
3598 | ||
3599 | ov->curframe = -1; | |
3600 | ||
3601 | if (ov->bridge == BRG_OV511) { | |
3602 | if (cams == 1) | |
3603 | size = 993; | |
3604 | else if (cams == 2) | |
3605 | size = 513; | |
3606 | else if (cams == 3 || cams == 4) | |
3607 | size = 257; | |
3608 | else { | |
3609 | err("\"cams\" parameter too high!"); | |
3610 | return -1; | |
3611 | } | |
3612 | } else if (ov->bridge == BRG_OV511PLUS) { | |
3613 | if (cams == 1) | |
3614 | size = 961; | |
3615 | else if (cams == 2) | |
3616 | size = 513; | |
3617 | else if (cams == 3 || cams == 4) | |
3618 | size = 257; | |
3619 | else if (cams >= 5 && cams <= 8) | |
3620 | size = 129; | |
3621 | else if (cams >= 9 && cams <= 31) | |
3622 | size = 33; | |
3623 | else { | |
3624 | err("\"cams\" parameter too high!"); | |
3625 | return -1; | |
3626 | } | |
3627 | } else if (ov->bclass == BCL_OV518) { | |
3628 | if (cams == 1) | |
3629 | size = 896; | |
3630 | else if (cams == 2) | |
3631 | size = 512; | |
3632 | else if (cams == 3 || cams == 4) | |
3633 | size = 256; | |
3634 | else if (cams >= 5 && cams <= 8) | |
3635 | size = 128; | |
3636 | else { | |
3637 | err("\"cams\" parameter too high!"); | |
3638 | return -1; | |
3639 | } | |
3640 | } else { | |
3641 | err("invalid bridge type"); | |
3642 | return -1; | |
3643 | } | |
3644 | ||
3645 | // FIXME: OV518 is hardcoded to 15 FPS (alternate 5) for now | |
3646 | if (ov->bclass == BCL_OV518) { | |
3647 | if (packetsize == -1) { | |
3648 | ov518_set_packet_size(ov, 640); | |
3649 | } else { | |
3650 | info("Forcing packet size to %d", packetsize); | |
3651 | ov518_set_packet_size(ov, packetsize); | |
3652 | } | |
3653 | } else { | |
3654 | if (packetsize == -1) { | |
3655 | ov511_set_packet_size(ov, size); | |
3656 | } else { | |
3657 | info("Forcing packet size to %d", packetsize); | |
3658 | ov511_set_packet_size(ov, packetsize); | |
3659 | } | |
3660 | } | |
3661 | ||
3662 | for (n = 0; n < OV511_NUMSBUF; n++) { | |
3663 | urb = usb_alloc_urb(FRAMES_PER_DESC, GFP_KERNEL); | |
3664 | if (!urb) { | |
3665 | err("init isoc: usb_alloc_urb ret. NULL"); | |
3666 | return -ENOMEM; | |
3667 | } | |
3668 | ov->sbuf[n].urb = urb; | |
3669 | urb->dev = ov->dev; | |
3670 | urb->context = &ov->sbuf[n]; | |
3671 | urb->pipe = usb_rcvisocpipe(ov->dev, OV511_ENDPOINT_ADDRESS); | |
3672 | urb->transfer_flags = URB_ISO_ASAP; | |
3673 | urb->transfer_buffer = ov->sbuf[n].data; | |
3674 | urb->complete = ov51x_isoc_irq; | |
3675 | urb->number_of_packets = FRAMES_PER_DESC; | |
3676 | urb->transfer_buffer_length = ov->packet_size * FRAMES_PER_DESC; | |
3677 | urb->interval = 1; | |
3678 | for (fx = 0; fx < FRAMES_PER_DESC; fx++) { | |
3679 | urb->iso_frame_desc[fx].offset = ov->packet_size * fx; | |
3680 | urb->iso_frame_desc[fx].length = ov->packet_size; | |
3681 | } | |
3682 | } | |
3683 | ||
3684 | ov->streaming = 1; | |
3685 | ||
3686 | for (n = 0; n < OV511_NUMSBUF; n++) { | |
3687 | ov->sbuf[n].urb->dev = ov->dev; | |
3688 | err = usb_submit_urb(ov->sbuf[n].urb, GFP_KERNEL); | |
3689 | if (err) { | |
3690 | err("init isoc: usb_submit_urb(%d) ret %d", n, err); | |
3691 | return err; | |
3692 | } | |
3693 | } | |
3694 | ||
3695 | return 0; | |
3696 | } | |
3697 | ||
3698 | static void | |
3699 | ov51x_unlink_isoc(struct usb_ov511 *ov) | |
3700 | { | |
3701 | int n; | |
3702 | ||
3703 | /* Unschedule all of the iso td's */ | |
3704 | for (n = OV511_NUMSBUF - 1; n >= 0; n--) { | |
3705 | if (ov->sbuf[n].urb) { | |
3706 | usb_kill_urb(ov->sbuf[n].urb); | |
3707 | usb_free_urb(ov->sbuf[n].urb); | |
3708 | ov->sbuf[n].urb = NULL; | |
3709 | } | |
3710 | } | |
3711 | } | |
3712 | ||
3713 | static void | |
3714 | ov51x_stop_isoc(struct usb_ov511 *ov) | |
3715 | { | |
3716 | if (!ov->streaming || !ov->dev) | |
3717 | return; | |
3718 | ||
3719 | PDEBUG(3, "*** Stopping capture ***"); | |
3720 | ||
3721 | if (ov->bclass == BCL_OV518) | |
3722 | ov518_set_packet_size(ov, 0); | |
3723 | else | |
3724 | ov511_set_packet_size(ov, 0); | |
3725 | ||
3726 | ov->streaming = 0; | |
3727 | ||
3728 | ov51x_unlink_isoc(ov); | |
3729 | } | |
3730 | ||
3731 | static int | |
3732 | ov51x_new_frame(struct usb_ov511 *ov, int framenum) | |
3733 | { | |
3734 | struct ov511_frame *frame; | |
3735 | int newnum; | |
3736 | ||
3737 | PDEBUG(4, "ov->curframe = %d, framenum = %d", ov->curframe, framenum); | |
3738 | ||
3739 | if (!ov->dev) | |
3740 | return -1; | |
3741 | ||
3742 | /* If we're not grabbing a frame right now and the other frame is */ | |
3743 | /* ready to be grabbed into, then use it instead */ | |
3744 | if (ov->curframe == -1) { | |
3745 | newnum = (framenum - 1 + OV511_NUMFRAMES) % OV511_NUMFRAMES; | |
3746 | if (ov->frame[newnum].grabstate == FRAME_READY) | |
3747 | framenum = newnum; | |
3748 | } else | |
3749 | return 0; | |
3750 | ||
3751 | frame = &ov->frame[framenum]; | |
3752 | ||
3753 | PDEBUG(4, "framenum = %d, width = %d, height = %d", framenum, | |
3754 | frame->width, frame->height); | |
3755 | ||
3756 | frame->grabstate = FRAME_GRABBING; | |
3757 | frame->scanstate = STATE_SCANNING; | |
3758 | frame->snapshot = 0; | |
3759 | ||
3760 | ov->curframe = framenum; | |
3761 | ||
3762 | /* Make sure it's not too big */ | |
3763 | if (frame->width > ov->maxwidth) | |
3764 | frame->width = ov->maxwidth; | |
3765 | ||
3766 | frame->width &= ~7L; /* Multiple of 8 */ | |
3767 | ||
3768 | if (frame->height > ov->maxheight) | |
3769 | frame->height = ov->maxheight; | |
3770 | ||
3771 | frame->height &= ~3L; /* Multiple of 4 */ | |
3772 | ||
3773 | return 0; | |
3774 | } | |
3775 | ||
3776 | /**************************************************************************** | |
3777 | * | |
3778 | * Buffer management | |
3779 | * | |
3780 | ***************************************************************************/ | |
3781 | ||
3782 | /* | |
3783 | * - You must acquire buf_lock before entering this function. | |
3784 | * - Because this code will free any non-null pointer, you must be sure to null | |
3785 | * them if you explicitly free them somewhere else! | |
3786 | */ | |
3787 | static void | |
3788 | ov51x_do_dealloc(struct usb_ov511 *ov) | |
3789 | { | |
3790 | int i; | |
3791 | PDEBUG(4, "entered"); | |
3792 | ||
3793 | if (ov->fbuf) { | |
3794 | rvfree(ov->fbuf, OV511_NUMFRAMES | |
3795 | * MAX_DATA_SIZE(ov->maxwidth, ov->maxheight)); | |
3796 | ov->fbuf = NULL; | |
3797 | } | |
3798 | ||
3799 | vfree(ov->rawfbuf); | |
3800 | ov->rawfbuf = NULL; | |
3801 | ||
3802 | vfree(ov->tempfbuf); | |
3803 | ov->tempfbuf = NULL; | |
3804 | ||
3805 | for (i = 0; i < OV511_NUMSBUF; i++) { | |
1bc3c9e1 JJ |
3806 | kfree(ov->sbuf[i].data); |
3807 | ov->sbuf[i].data = NULL; | |
1da177e4 LT |
3808 | } |
3809 | ||
3810 | for (i = 0; i < OV511_NUMFRAMES; i++) { | |
3811 | ov->frame[i].data = NULL; | |
3812 | ov->frame[i].rawdata = NULL; | |
3813 | ov->frame[i].tempdata = NULL; | |
3814 | if (ov->frame[i].compbuf) { | |
3815 | free_page((unsigned long) ov->frame[i].compbuf); | |
3816 | ov->frame[i].compbuf = NULL; | |
3817 | } | |
3818 | } | |
3819 | ||
3820 | PDEBUG(4, "buffer memory deallocated"); | |
3821 | ov->buf_state = BUF_NOT_ALLOCATED; | |
3822 | PDEBUG(4, "leaving"); | |
3823 | } | |
3824 | ||
3825 | static int | |
3826 | ov51x_alloc(struct usb_ov511 *ov) | |
3827 | { | |
3828 | int i; | |
3829 | const int w = ov->maxwidth; | |
3830 | const int h = ov->maxheight; | |
3831 | const int data_bufsize = OV511_NUMFRAMES * MAX_DATA_SIZE(w, h); | |
3832 | const int raw_bufsize = OV511_NUMFRAMES * MAX_RAW_DATA_SIZE(w, h); | |
3833 | ||
3834 | PDEBUG(4, "entered"); | |
4186ecf8 | 3835 | mutex_lock(&ov->buf_lock); |
1da177e4 LT |
3836 | |
3837 | if (ov->buf_state == BUF_ALLOCATED) | |
3838 | goto out; | |
3839 | ||
3840 | ov->fbuf = rvmalloc(data_bufsize); | |
3841 | if (!ov->fbuf) | |
3842 | goto error; | |
3843 | ||
3844 | ov->rawfbuf = vmalloc(raw_bufsize); | |
3845 | if (!ov->rawfbuf) | |
3846 | goto error; | |
3847 | ||
3848 | memset(ov->rawfbuf, 0, raw_bufsize); | |
3849 | ||
3850 | ov->tempfbuf = vmalloc(raw_bufsize); | |
3851 | if (!ov->tempfbuf) | |
3852 | goto error; | |
3853 | ||
3854 | memset(ov->tempfbuf, 0, raw_bufsize); | |
3855 | ||
3856 | for (i = 0; i < OV511_NUMSBUF; i++) { | |
3857 | ov->sbuf[i].data = kmalloc(FRAMES_PER_DESC * | |
3858 | MAX_FRAME_SIZE_PER_DESC, GFP_KERNEL); | |
3859 | if (!ov->sbuf[i].data) | |
3860 | goto error; | |
3861 | ||
3862 | PDEBUG(4, "sbuf[%d] @ %p", i, ov->sbuf[i].data); | |
3863 | } | |
3864 | ||
3865 | for (i = 0; i < OV511_NUMFRAMES; i++) { | |
3866 | ov->frame[i].data = ov->fbuf + i * MAX_DATA_SIZE(w, h); | |
3867 | ov->frame[i].rawdata = ov->rawfbuf | |
3868 | + i * MAX_RAW_DATA_SIZE(w, h); | |
3869 | ov->frame[i].tempdata = ov->tempfbuf | |
3870 | + i * MAX_RAW_DATA_SIZE(w, h); | |
3871 | ||
3872 | ov->frame[i].compbuf = | |
3873 | (unsigned char *) __get_free_page(GFP_KERNEL); | |
3874 | if (!ov->frame[i].compbuf) | |
3875 | goto error; | |
3876 | ||
3877 | PDEBUG(4, "frame[%d] @ %p", i, ov->frame[i].data); | |
3878 | } | |
3879 | ||
3880 | ov->buf_state = BUF_ALLOCATED; | |
3881 | out: | |
4186ecf8 | 3882 | mutex_unlock(&ov->buf_lock); |
1da177e4 LT |
3883 | PDEBUG(4, "leaving"); |
3884 | return 0; | |
3885 | error: | |
3886 | ov51x_do_dealloc(ov); | |
4186ecf8 | 3887 | mutex_unlock(&ov->buf_lock); |
1da177e4 LT |
3888 | PDEBUG(4, "errored"); |
3889 | return -ENOMEM; | |
3890 | } | |
3891 | ||
3892 | static void | |
3893 | ov51x_dealloc(struct usb_ov511 *ov) | |
3894 | { | |
3895 | PDEBUG(4, "entered"); | |
4186ecf8 | 3896 | mutex_lock(&ov->buf_lock); |
1da177e4 | 3897 | ov51x_do_dealloc(ov); |
4186ecf8 | 3898 | mutex_unlock(&ov->buf_lock); |
1da177e4 LT |
3899 | PDEBUG(4, "leaving"); |
3900 | } | |
3901 | ||
3902 | /**************************************************************************** | |
3903 | * | |
3904 | * V4L 1 API | |
3905 | * | |
3906 | ***************************************************************************/ | |
3907 | ||
3908 | static int | |
3909 | ov51x_v4l1_open(struct inode *inode, struct file *file) | |
3910 | { | |
3911 | struct video_device *vdev = video_devdata(file); | |
3912 | struct usb_ov511 *ov = video_get_drvdata(vdev); | |
3913 | int err, i; | |
3914 | ||
3915 | PDEBUG(4, "opening"); | |
3916 | ||
4186ecf8 | 3917 | mutex_lock(&ov->lock); |
1da177e4 LT |
3918 | |
3919 | err = -EBUSY; | |
3920 | if (ov->user) | |
3921 | goto out; | |
3922 | ||
3923 | ov->sub_flag = 0; | |
3924 | ||
3925 | /* In case app doesn't set them... */ | |
3926 | err = ov51x_set_default_params(ov); | |
3927 | if (err < 0) | |
3928 | goto out; | |
3929 | ||
3930 | /* Make sure frames are reset */ | |
3931 | for (i = 0; i < OV511_NUMFRAMES; i++) { | |
3932 | ov->frame[i].grabstate = FRAME_UNUSED; | |
3933 | ov->frame[i].bytes_read = 0; | |
3934 | } | |
3935 | ||
3936 | /* If compression is on, make sure now that a | |
3937 | * decompressor can be loaded */ | |
3938 | if (ov->compress && !ov->decomp_ops) { | |
3939 | err = request_decompressor(ov); | |
3940 | if (err && !dumppix) | |
3941 | goto out; | |
3942 | } | |
3943 | ||
3944 | err = ov51x_alloc(ov); | |
3945 | if (err < 0) | |
3946 | goto out; | |
3947 | ||
3948 | err = ov51x_init_isoc(ov); | |
3949 | if (err) { | |
3950 | ov51x_dealloc(ov); | |
3951 | goto out; | |
3952 | } | |
3953 | ||
3954 | ov->user++; | |
3955 | file->private_data = vdev; | |
3956 | ||
3957 | if (ov->led_policy == LED_AUTO) | |
3958 | ov51x_led_control(ov, 1); | |
3959 | ||
3960 | out: | |
4186ecf8 | 3961 | mutex_unlock(&ov->lock); |
1da177e4 LT |
3962 | return err; |
3963 | } | |
3964 | ||
3965 | static int | |
3966 | ov51x_v4l1_close(struct inode *inode, struct file *file) | |
3967 | { | |
3968 | struct video_device *vdev = file->private_data; | |
3969 | struct usb_ov511 *ov = video_get_drvdata(vdev); | |
3970 | ||
3971 | PDEBUG(4, "ov511_close"); | |
3972 | ||
4186ecf8 | 3973 | mutex_lock(&ov->lock); |
1da177e4 LT |
3974 | |
3975 | ov->user--; | |
3976 | ov51x_stop_isoc(ov); | |
3977 | ||
1da177e4 LT |
3978 | if (ov->led_policy == LED_AUTO) |
3979 | ov51x_led_control(ov, 0); | |
3980 | ||
3981 | if (ov->dev) | |
3982 | ov51x_dealloc(ov); | |
3983 | ||
4186ecf8 | 3984 | mutex_unlock(&ov->lock); |
1da177e4 LT |
3985 | |
3986 | /* Device unplugged while open. Only a minimum of unregistration is done | |
3987 | * here; the disconnect callback already did the rest. */ | |
3988 | if (!ov->dev) { | |
4186ecf8 | 3989 | mutex_lock(&ov->cbuf_lock); |
1da177e4 LT |
3990 | kfree(ov->cbuf); |
3991 | ov->cbuf = NULL; | |
4186ecf8 | 3992 | mutex_unlock(&ov->cbuf_lock); |
1da177e4 LT |
3993 | |
3994 | ov51x_dealloc(ov); | |
3995 | kfree(ov); | |
3996 | ov = NULL; | |
3997 | } | |
3998 | ||
3999 | file->private_data = NULL; | |
4000 | return 0; | |
4001 | } | |
4002 | ||
4003 | /* Do not call this function directly! */ | |
4004 | static int | |
4005 | ov51x_v4l1_ioctl_internal(struct inode *inode, struct file *file, | |
4006 | unsigned int cmd, void *arg) | |
4007 | { | |
4008 | struct video_device *vdev = file->private_data; | |
4009 | struct usb_ov511 *ov = video_get_drvdata(vdev); | |
4010 | PDEBUG(5, "IOCtl: 0x%X", cmd); | |
4011 | ||
4012 | if (!ov->dev) | |
4013 | return -EIO; | |
4014 | ||
4015 | switch (cmd) { | |
4016 | case VIDIOCGCAP: | |
4017 | { | |
4018 | struct video_capability *b = arg; | |
4019 | ||
4020 | PDEBUG(4, "VIDIOCGCAP"); | |
4021 | ||
4022 | memset(b, 0, sizeof(struct video_capability)); | |
4023 | sprintf(b->name, "%s USB Camera", | |
4024 | symbolic(brglist, ov->bridge)); | |
4025 | b->type = VID_TYPE_CAPTURE | VID_TYPE_SUBCAPTURE; | |
4026 | b->channels = ov->num_inputs; | |
4027 | b->audios = 0; | |
4028 | b->maxwidth = ov->maxwidth; | |
4029 | b->maxheight = ov->maxheight; | |
4030 | b->minwidth = ov->minwidth; | |
4031 | b->minheight = ov->minheight; | |
4032 | ||
4033 | return 0; | |
4034 | } | |
4035 | case VIDIOCGCHAN: | |
4036 | { | |
4037 | struct video_channel *v = arg; | |
4038 | ||
4039 | PDEBUG(4, "VIDIOCGCHAN"); | |
4040 | ||
4041 | if ((unsigned)(v->channel) >= ov->num_inputs) { | |
4042 | err("Invalid channel (%d)", v->channel); | |
4043 | return -EINVAL; | |
4044 | } | |
4045 | ||
4046 | v->norm = ov->norm; | |
4047 | v->type = VIDEO_TYPE_CAMERA; | |
4048 | v->flags = 0; | |
4049 | // v->flags |= (ov->has_decoder) ? VIDEO_VC_NORM : 0; | |
4050 | v->tuners = 0; | |
4051 | decoder_get_input_name(ov, v->channel, v->name); | |
4052 | ||
4053 | return 0; | |
4054 | } | |
4055 | case VIDIOCSCHAN: | |
4056 | { | |
4057 | struct video_channel *v = arg; | |
4058 | int err; | |
4059 | ||
4060 | PDEBUG(4, "VIDIOCSCHAN"); | |
4061 | ||
4062 | /* Make sure it's not a camera */ | |
4063 | if (!ov->has_decoder) { | |
4064 | if (v->channel == 0) | |
4065 | return 0; | |
4066 | else | |
4067 | return -EINVAL; | |
4068 | } | |
4069 | ||
4070 | if (v->norm != VIDEO_MODE_PAL && | |
4071 | v->norm != VIDEO_MODE_NTSC && | |
4072 | v->norm != VIDEO_MODE_SECAM && | |
4073 | v->norm != VIDEO_MODE_AUTO) { | |
4074 | err("Invalid norm (%d)", v->norm); | |
4075 | return -EINVAL; | |
4076 | } | |
4077 | ||
4078 | if ((unsigned)(v->channel) >= ov->num_inputs) { | |
4079 | err("Invalid channel (%d)", v->channel); | |
4080 | return -EINVAL; | |
4081 | } | |
4082 | ||
4083 | err = decoder_set_input(ov, v->channel); | |
4084 | if (err) | |
4085 | return err; | |
4086 | ||
4087 | err = decoder_set_norm(ov, v->norm); | |
4088 | if (err) | |
4089 | return err; | |
4090 | ||
4091 | return 0; | |
4092 | } | |
4093 | case VIDIOCGPICT: | |
4094 | { | |
4095 | struct video_picture *p = arg; | |
4096 | ||
4097 | PDEBUG(4, "VIDIOCGPICT"); | |
4098 | ||
4099 | memset(p, 0, sizeof(struct video_picture)); | |
4100 | if (sensor_get_picture(ov, p)) | |
4101 | return -EIO; | |
4102 | ||
4103 | /* Can we get these from frame[0]? -claudio? */ | |
4104 | p->depth = ov->frame[0].depth; | |
4105 | p->palette = ov->frame[0].format; | |
4106 | ||
4107 | return 0; | |
4108 | } | |
4109 | case VIDIOCSPICT: | |
4110 | { | |
4111 | struct video_picture *p = arg; | |
4112 | int i, rc; | |
4113 | ||
4114 | PDEBUG(4, "VIDIOCSPICT"); | |
4115 | ||
4116 | if (!get_depth(p->palette)) | |
4117 | return -EINVAL; | |
4118 | ||
4119 | if (sensor_set_picture(ov, p)) | |
4120 | return -EIO; | |
4121 | ||
4122 | if (force_palette && p->palette != force_palette) { | |
4123 | info("Palette rejected (%s)", | |
4124 | symbolic(v4l1_plist, p->palette)); | |
4125 | return -EINVAL; | |
4126 | } | |
4127 | ||
4128 | // FIXME: Format should be independent of frames | |
4129 | if (p->palette != ov->frame[0].format) { | |
4130 | PDEBUG(4, "Detected format change"); | |
4131 | ||
4132 | rc = ov51x_wait_frames_inactive(ov); | |
4133 | if (rc) | |
4134 | return rc; | |
4135 | ||
4136 | mode_init_regs(ov, ov->frame[0].width, | |
4137 | ov->frame[0].height, p->palette, ov->sub_flag); | |
4138 | } | |
4139 | ||
4140 | PDEBUG(4, "Setting depth=%d, palette=%s", | |
4141 | p->depth, symbolic(v4l1_plist, p->palette)); | |
4142 | ||
4143 | for (i = 0; i < OV511_NUMFRAMES; i++) { | |
4144 | ov->frame[i].depth = p->depth; | |
4145 | ov->frame[i].format = p->palette; | |
4146 | } | |
4147 | ||
4148 | return 0; | |
4149 | } | |
4150 | case VIDIOCGCAPTURE: | |
4151 | { | |
4152 | int *vf = arg; | |
4153 | ||
4154 | PDEBUG(4, "VIDIOCGCAPTURE"); | |
4155 | ||
4156 | ov->sub_flag = *vf; | |
4157 | return 0; | |
4158 | } | |
4159 | case VIDIOCSCAPTURE: | |
4160 | { | |
4161 | struct video_capture *vc = arg; | |
4162 | ||
4163 | PDEBUG(4, "VIDIOCSCAPTURE"); | |
4164 | ||
4165 | if (vc->flags) | |
4166 | return -EINVAL; | |
4167 | if (vc->decimation) | |
4168 | return -EINVAL; | |
4169 | ||
4170 | vc->x &= ~3L; | |
4171 | vc->y &= ~1L; | |
4172 | vc->y &= ~31L; | |
4173 | ||
4174 | if (vc->width == 0) | |
4175 | vc->width = 32; | |
4176 | ||
4177 | vc->height /= 16; | |
4178 | vc->height *= 16; | |
4179 | if (vc->height == 0) | |
4180 | vc->height = 16; | |
4181 | ||
4182 | ov->subx = vc->x; | |
4183 | ov->suby = vc->y; | |
4184 | ov->subw = vc->width; | |
4185 | ov->subh = vc->height; | |
4186 | ||
4187 | return 0; | |
4188 | } | |
4189 | case VIDIOCSWIN: | |
4190 | { | |
4191 | struct video_window *vw = arg; | |
4192 | int i, rc; | |
4193 | ||
4194 | PDEBUG(4, "VIDIOCSWIN: %dx%d", vw->width, vw->height); | |
4195 | ||
4196 | #if 0 | |
4197 | if (vw->flags) | |
4198 | return -EINVAL; | |
4199 | if (vw->clipcount) | |
4200 | return -EINVAL; | |
4201 | if (vw->height != ov->maxheight) | |
4202 | return -EINVAL; | |
4203 | if (vw->width != ov->maxwidth) | |
4204 | return -EINVAL; | |
4205 | #endif | |
4206 | ||
4207 | rc = ov51x_wait_frames_inactive(ov); | |
4208 | if (rc) | |
4209 | return rc; | |
4210 | ||
4211 | rc = mode_init_regs(ov, vw->width, vw->height, | |
4212 | ov->frame[0].format, ov->sub_flag); | |
4213 | if (rc < 0) | |
4214 | return rc; | |
4215 | ||
4216 | for (i = 0; i < OV511_NUMFRAMES; i++) { | |
4217 | ov->frame[i].width = vw->width; | |
4218 | ov->frame[i].height = vw->height; | |
4219 | } | |
4220 | ||
4221 | return 0; | |
4222 | } | |
4223 | case VIDIOCGWIN: | |
4224 | { | |
4225 | struct video_window *vw = arg; | |
4226 | ||
4227 | memset(vw, 0, sizeof(struct video_window)); | |
4228 | vw->x = 0; /* FIXME */ | |
4229 | vw->y = 0; | |
4230 | vw->width = ov->frame[0].width; | |
4231 | vw->height = ov->frame[0].height; | |
4232 | vw->flags = 30; | |
4233 | ||
4234 | PDEBUG(4, "VIDIOCGWIN: %dx%d", vw->width, vw->height); | |
4235 | ||
4236 | return 0; | |
4237 | } | |
4238 | case VIDIOCGMBUF: | |
4239 | { | |
4240 | struct video_mbuf *vm = arg; | |
4241 | int i; | |
4242 | ||
4243 | PDEBUG(4, "VIDIOCGMBUF"); | |
4244 | ||
4245 | memset(vm, 0, sizeof(struct video_mbuf)); | |
4246 | vm->size = OV511_NUMFRAMES | |
4247 | * MAX_DATA_SIZE(ov->maxwidth, ov->maxheight); | |
4248 | vm->frames = OV511_NUMFRAMES; | |
4249 | ||
4250 | vm->offsets[0] = 0; | |
4251 | for (i = 1; i < OV511_NUMFRAMES; i++) { | |
4252 | vm->offsets[i] = vm->offsets[i-1] | |
4253 | + MAX_DATA_SIZE(ov->maxwidth, ov->maxheight); | |
4254 | } | |
4255 | ||
4256 | return 0; | |
4257 | } | |
4258 | case VIDIOCMCAPTURE: | |
4259 | { | |
4260 | struct video_mmap *vm = arg; | |
4261 | int rc, depth; | |
4262 | unsigned int f = vm->frame; | |
4263 | ||
4264 | PDEBUG(4, "VIDIOCMCAPTURE: frame: %d, %dx%d, %s", f, vm->width, | |
4265 | vm->height, symbolic(v4l1_plist, vm->format)); | |
4266 | ||
4267 | depth = get_depth(vm->format); | |
4268 | if (!depth) { | |
4269 | PDEBUG(2, "VIDIOCMCAPTURE: invalid format (%s)", | |
4270 | symbolic(v4l1_plist, vm->format)); | |
4271 | return -EINVAL; | |
4272 | } | |
4273 | ||
4274 | if (f >= OV511_NUMFRAMES) { | |
4275 | err("VIDIOCMCAPTURE: invalid frame (%d)", f); | |
4276 | return -EINVAL; | |
4277 | } | |
4278 | ||
4279 | if (vm->width > ov->maxwidth | |
4280 | || vm->height > ov->maxheight) { | |
4281 | err("VIDIOCMCAPTURE: requested dimensions too big"); | |
4282 | return -EINVAL; | |
4283 | } | |
4284 | ||
4285 | if (ov->frame[f].grabstate == FRAME_GRABBING) { | |
4286 | PDEBUG(4, "VIDIOCMCAPTURE: already grabbing"); | |
4287 | return -EBUSY; | |
4288 | } | |
4289 | ||
4290 | if (force_palette && (vm->format != force_palette)) { | |
4291 | PDEBUG(2, "palette rejected (%s)", | |
4292 | symbolic(v4l1_plist, vm->format)); | |
4293 | return -EINVAL; | |
4294 | } | |
4295 | ||
4296 | if ((ov->frame[f].width != vm->width) || | |
4297 | (ov->frame[f].height != vm->height) || | |
4298 | (ov->frame[f].format != vm->format) || | |
4299 | (ov->frame[f].sub_flag != ov->sub_flag) || | |
4300 | (ov->frame[f].depth != depth)) { | |
4301 | PDEBUG(4, "VIDIOCMCAPTURE: change in image parameters"); | |
4302 | ||
4303 | rc = ov51x_wait_frames_inactive(ov); | |
4304 | if (rc) | |
4305 | return rc; | |
4306 | ||
4307 | rc = mode_init_regs(ov, vm->width, vm->height, | |
4308 | vm->format, ov->sub_flag); | |
4309 | #if 0 | |
4310 | if (rc < 0) { | |
4311 | PDEBUG(1, "Got error while initializing regs "); | |
4312 | return ret; | |
4313 | } | |
4314 | #endif | |
4315 | ov->frame[f].width = vm->width; | |
4316 | ov->frame[f].height = vm->height; | |
4317 | ov->frame[f].format = vm->format; | |
4318 | ov->frame[f].sub_flag = ov->sub_flag; | |
4319 | ov->frame[f].depth = depth; | |
4320 | } | |
4321 | ||
4322 | /* Mark it as ready */ | |
4323 | ov->frame[f].grabstate = FRAME_READY; | |
4324 | ||
4325 | PDEBUG(4, "VIDIOCMCAPTURE: renewing frame %d", f); | |
4326 | ||
4327 | return ov51x_new_frame(ov, f); | |
4328 | } | |
4329 | case VIDIOCSYNC: | |
4330 | { | |
4331 | unsigned int fnum = *((unsigned int *) arg); | |
4332 | struct ov511_frame *frame; | |
4333 | int rc; | |
4334 | ||
4335 | if (fnum >= OV511_NUMFRAMES) { | |
4336 | err("VIDIOCSYNC: invalid frame (%d)", fnum); | |
4337 | return -EINVAL; | |
4338 | } | |
4339 | ||
4340 | frame = &ov->frame[fnum]; | |
4341 | ||
4342 | PDEBUG(4, "syncing to frame %d, grabstate = %d", fnum, | |
4343 | frame->grabstate); | |
4344 | ||
4345 | switch (frame->grabstate) { | |
4346 | case FRAME_UNUSED: | |
4347 | return -EINVAL; | |
4348 | case FRAME_READY: | |
4349 | case FRAME_GRABBING: | |
4350 | case FRAME_ERROR: | |
4351 | redo: | |
4352 | if (!ov->dev) | |
4353 | return -EIO; | |
4354 | ||
4355 | rc = wait_event_interruptible(frame->wq, | |
4356 | (frame->grabstate == FRAME_DONE) | |
4357 | || (frame->grabstate == FRAME_ERROR)); | |
4358 | ||
4359 | if (rc) | |
4360 | return rc; | |
4361 | ||
4362 | if (frame->grabstate == FRAME_ERROR) { | |
4363 | if ((rc = ov51x_new_frame(ov, fnum)) < 0) | |
4364 | return rc; | |
4365 | goto redo; | |
4366 | } | |
4367 | /* Fall through */ | |
4368 | case FRAME_DONE: | |
4369 | if (ov->snap_enabled && !frame->snapshot) { | |
4370 | if ((rc = ov51x_new_frame(ov, fnum)) < 0) | |
4371 | return rc; | |
4372 | goto redo; | |
4373 | } | |
4374 | ||
4375 | frame->grabstate = FRAME_UNUSED; | |
4376 | ||
4377 | /* Reset the hardware snapshot button */ | |
4378 | /* FIXME - Is this the best place for this? */ | |
4379 | if ((ov->snap_enabled) && (frame->snapshot)) { | |
4380 | frame->snapshot = 0; | |
4381 | ov51x_clear_snapshot(ov); | |
4382 | } | |
4383 | ||
4384 | /* Decompression, format conversion, etc... */ | |
4385 | ov51x_postprocess(ov, frame); | |
4386 | ||
4387 | break; | |
4388 | } /* end switch */ | |
4389 | ||
4390 | return 0; | |
4391 | } | |
4392 | case VIDIOCGFBUF: | |
4393 | { | |
4394 | struct video_buffer *vb = arg; | |
4395 | ||
4396 | PDEBUG(4, "VIDIOCGFBUF"); | |
4397 | ||
4398 | memset(vb, 0, sizeof(struct video_buffer)); | |
4399 | ||
4400 | return 0; | |
4401 | } | |
4402 | case VIDIOCGUNIT: | |
4403 | { | |
4404 | struct video_unit *vu = arg; | |
4405 | ||
4406 | PDEBUG(4, "VIDIOCGUNIT"); | |
4407 | ||
4408 | memset(vu, 0, sizeof(struct video_unit)); | |
4409 | ||
4410 | vu->video = ov->vdev->minor; | |
4411 | vu->vbi = VIDEO_NO_UNIT; | |
4412 | vu->radio = VIDEO_NO_UNIT; | |
4413 | vu->audio = VIDEO_NO_UNIT; | |
4414 | vu->teletext = VIDEO_NO_UNIT; | |
4415 | ||
4416 | return 0; | |
4417 | } | |
4418 | case OV511IOC_WI2C: | |
4419 | { | |
4420 | struct ov511_i2c_struct *w = arg; | |
4421 | ||
4422 | return i2c_w_slave(ov, w->slave, w->reg, w->value, w->mask); | |
4423 | } | |
4424 | case OV511IOC_RI2C: | |
4425 | { | |
4426 | struct ov511_i2c_struct *r = arg; | |
4427 | int rc; | |
4428 | ||
4429 | rc = i2c_r_slave(ov, r->slave, r->reg); | |
4430 | if (rc < 0) | |
4431 | return rc; | |
4432 | ||
4433 | r->value = rc; | |
4434 | return 0; | |
4435 | } | |
4436 | default: | |
4437 | PDEBUG(3, "Unsupported IOCtl: 0x%X", cmd); | |
4438 | return -ENOIOCTLCMD; | |
4439 | } /* end switch */ | |
4440 | ||
4441 | return 0; | |
4442 | } | |
4443 | ||
4444 | static int | |
4445 | ov51x_v4l1_ioctl(struct inode *inode, struct file *file, | |
4446 | unsigned int cmd, unsigned long arg) | |
4447 | { | |
4448 | struct video_device *vdev = file->private_data; | |
4449 | struct usb_ov511 *ov = video_get_drvdata(vdev); | |
4450 | int rc; | |
4451 | ||
4186ecf8 | 4452 | if (mutex_lock_interruptible(&ov->lock)) |
1da177e4 LT |
4453 | return -EINTR; |
4454 | ||
4455 | rc = video_usercopy(inode, file, cmd, arg, ov51x_v4l1_ioctl_internal); | |
4456 | ||
4186ecf8 | 4457 | mutex_unlock(&ov->lock); |
1da177e4 LT |
4458 | return rc; |
4459 | } | |
4460 | ||
4461 | static ssize_t | |
4462 | ov51x_v4l1_read(struct file *file, char __user *buf, size_t cnt, loff_t *ppos) | |
4463 | { | |
4464 | struct video_device *vdev = file->private_data; | |
4465 | int noblock = file->f_flags&O_NONBLOCK; | |
4466 | unsigned long count = cnt; | |
4467 | struct usb_ov511 *ov = video_get_drvdata(vdev); | |
4468 | int i, rc = 0, frmx = -1; | |
4469 | struct ov511_frame *frame; | |
4470 | ||
4186ecf8 | 4471 | if (mutex_lock_interruptible(&ov->lock)) |
1da177e4 LT |
4472 | return -EINTR; |
4473 | ||
4474 | PDEBUG(4, "%ld bytes, noblock=%d", count, noblock); | |
4475 | ||
4476 | if (!vdev || !buf) { | |
4477 | rc = -EFAULT; | |
4478 | goto error; | |
4479 | } | |
4480 | ||
4481 | if (!ov->dev) { | |
4482 | rc = -EIO; | |
4483 | goto error; | |
4484 | } | |
4485 | ||
4486 | // FIXME: Only supports two frames | |
4487 | /* See if a frame is completed, then use it. */ | |
4488 | if (ov->frame[0].grabstate >= FRAME_DONE) /* _DONE or _ERROR */ | |
4489 | frmx = 0; | |
4490 | else if (ov->frame[1].grabstate >= FRAME_DONE)/* _DONE or _ERROR */ | |
4491 | frmx = 1; | |
4492 | ||
4493 | /* If nonblocking we return immediately */ | |
4494 | if (noblock && (frmx == -1)) { | |
4495 | rc = -EAGAIN; | |
4496 | goto error; | |
4497 | } | |
4498 | ||
4499 | /* If no FRAME_DONE, look for a FRAME_GRABBING state. */ | |
4500 | /* See if a frame is in process (grabbing), then use it. */ | |
4501 | if (frmx == -1) { | |
4502 | if (ov->frame[0].grabstate == FRAME_GRABBING) | |
4503 | frmx = 0; | |
4504 | else if (ov->frame[1].grabstate == FRAME_GRABBING) | |
4505 | frmx = 1; | |
4506 | } | |
4507 | ||
4508 | /* If no frame is active, start one. */ | |
4509 | if (frmx == -1) { | |
4510 | if ((rc = ov51x_new_frame(ov, frmx = 0))) { | |
4511 | err("read: ov51x_new_frame error"); | |
4512 | goto error; | |
4513 | } | |
4514 | } | |
4515 | ||
4516 | frame = &ov->frame[frmx]; | |
4517 | ||
4518 | restart: | |
4519 | if (!ov->dev) { | |
4520 | rc = -EIO; | |
4521 | goto error; | |
4522 | } | |
4523 | ||
4524 | /* Wait while we're grabbing the image */ | |
4525 | PDEBUG(4, "Waiting image grabbing"); | |
4526 | rc = wait_event_interruptible(frame->wq, | |
4527 | (frame->grabstate == FRAME_DONE) | |
4528 | || (frame->grabstate == FRAME_ERROR)); | |
4529 | ||
4530 | if (rc) | |
4531 | goto error; | |
4532 | ||
4533 | PDEBUG(4, "Got image, frame->grabstate = %d", frame->grabstate); | |
4534 | PDEBUG(4, "bytes_recvd = %d", frame->bytes_recvd); | |
4535 | ||
4536 | if (frame->grabstate == FRAME_ERROR) { | |
4537 | frame->bytes_read = 0; | |
4538 | err("** ick! ** Errored frame %d", ov->curframe); | |
4539 | if (ov51x_new_frame(ov, frmx)) { | |
4540 | err("read: ov51x_new_frame error"); | |
4541 | goto error; | |
4542 | } | |
4543 | goto restart; | |
4544 | } | |
4545 | ||
4546 | ||
4547 | /* Repeat until we get a snapshot frame */ | |
4548 | if (ov->snap_enabled) | |
4549 | PDEBUG(4, "Waiting snapshot frame"); | |
4550 | if (ov->snap_enabled && !frame->snapshot) { | |
4551 | frame->bytes_read = 0; | |
4552 | if ((rc = ov51x_new_frame(ov, frmx))) { | |
4553 | err("read: ov51x_new_frame error"); | |
4554 | goto error; | |
4555 | } | |
4556 | goto restart; | |
4557 | } | |
4558 | ||
4559 | /* Clear the snapshot */ | |
4560 | if (ov->snap_enabled && frame->snapshot) { | |
4561 | frame->snapshot = 0; | |
4562 | ov51x_clear_snapshot(ov); | |
4563 | } | |
4564 | ||
4565 | /* Decompression, format conversion, etc... */ | |
4566 | ov51x_postprocess(ov, frame); | |
4567 | ||
4568 | PDEBUG(4, "frmx=%d, bytes_read=%ld, length=%ld", frmx, | |
4569 | frame->bytes_read, | |
4570 | get_frame_length(frame)); | |
4571 | ||
4572 | /* copy bytes to user space; we allow for partials reads */ | |
4573 | // if ((count + frame->bytes_read) | |
4574 | // > get_frame_length((struct ov511_frame *)frame)) | |
4575 | // count = frame->scanlength - frame->bytes_read; | |
4576 | ||
4577 | /* FIXME - count hardwired to be one frame... */ | |
4578 | count = get_frame_length(frame); | |
4579 | ||
4580 | PDEBUG(4, "Copy to user space: %ld bytes", count); | |
4581 | if ((i = copy_to_user(buf, frame->data + frame->bytes_read, count))) { | |
4582 | PDEBUG(4, "Copy failed! %d bytes not copied", i); | |
4583 | rc = -EFAULT; | |
4584 | goto error; | |
4585 | } | |
4586 | ||
4587 | frame->bytes_read += count; | |
4588 | PDEBUG(4, "{copy} count used=%ld, new bytes_read=%ld", | |
4589 | count, frame->bytes_read); | |
4590 | ||
4591 | /* If all data have been read... */ | |
4592 | if (frame->bytes_read | |
4593 | >= get_frame_length(frame)) { | |
4594 | frame->bytes_read = 0; | |
4595 | ||
4596 | // FIXME: Only supports two frames | |
4597 | /* Mark it as available to be used again. */ | |
4598 | ov->frame[frmx].grabstate = FRAME_UNUSED; | |
4599 | if ((rc = ov51x_new_frame(ov, !frmx))) { | |
4600 | err("ov51x_new_frame returned error"); | |
4601 | goto error; | |
4602 | } | |
4603 | } | |
4604 | ||
4605 | PDEBUG(4, "read finished, returning %ld (sweet)", count); | |
4606 | ||
4186ecf8 | 4607 | mutex_unlock(&ov->lock); |
1da177e4 LT |
4608 | return count; |
4609 | ||
4610 | error: | |
4186ecf8 | 4611 | mutex_unlock(&ov->lock); |
1da177e4 LT |
4612 | return rc; |
4613 | } | |
4614 | ||
4615 | static int | |
4616 | ov51x_v4l1_mmap(struct file *file, struct vm_area_struct *vma) | |
4617 | { | |
4618 | struct video_device *vdev = file->private_data; | |
4619 | unsigned long start = vma->vm_start; | |
4620 | unsigned long size = vma->vm_end - vma->vm_start; | |
4621 | struct usb_ov511 *ov = video_get_drvdata(vdev); | |
4622 | unsigned long page, pos; | |
4623 | ||
4624 | if (ov->dev == NULL) | |
4625 | return -EIO; | |
4626 | ||
4627 | PDEBUG(4, "mmap: %ld (%lX) bytes", size, size); | |
4628 | ||
4629 | if (size > (((OV511_NUMFRAMES | |
d56410e0 MCC |
4630 | * MAX_DATA_SIZE(ov->maxwidth, ov->maxheight) |
4631 | + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1)))) | |
1da177e4 LT |
4632 | return -EINVAL; |
4633 | ||
4186ecf8 | 4634 | if (mutex_lock_interruptible(&ov->lock)) |
1da177e4 LT |
4635 | return -EINTR; |
4636 | ||
4637 | pos = (unsigned long)ov->fbuf; | |
4638 | while (size > 0) { | |
4639 | page = vmalloc_to_pfn((void *)pos); | |
4640 | if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) { | |
4186ecf8 | 4641 | mutex_unlock(&ov->lock); |
1da177e4 LT |
4642 | return -EAGAIN; |
4643 | } | |
4644 | start += PAGE_SIZE; | |
4645 | pos += PAGE_SIZE; | |
4646 | if (size > PAGE_SIZE) | |
4647 | size -= PAGE_SIZE; | |
4648 | else | |
4649 | size = 0; | |
4650 | } | |
4651 | ||
4186ecf8 | 4652 | mutex_unlock(&ov->lock); |
1da177e4 LT |
4653 | return 0; |
4654 | } | |
4655 | ||
4656 | static struct file_operations ov511_fops = { | |
4657 | .owner = THIS_MODULE, | |
4658 | .open = ov51x_v4l1_open, | |
4659 | .release = ov51x_v4l1_close, | |
4660 | .read = ov51x_v4l1_read, | |
4661 | .mmap = ov51x_v4l1_mmap, | |
4662 | .ioctl = ov51x_v4l1_ioctl, | |
0d0fbf81 | 4663 | .compat_ioctl = v4l_compat_ioctl32, |
1da177e4 LT |
4664 | .llseek = no_llseek, |
4665 | }; | |
4666 | ||
4667 | static struct video_device vdev_template = { | |
4668 | .owner = THIS_MODULE, | |
4669 | .name = "OV511 USB Camera", | |
4670 | .type = VID_TYPE_CAPTURE, | |
4671 | .hardware = VID_HARDWARE_OV511, | |
4672 | .fops = &ov511_fops, | |
4673 | .release = video_device_release, | |
4674 | .minor = -1, | |
4675 | }; | |
4676 | ||
4677 | /**************************************************************************** | |
4678 | * | |
4679 | * OV511 and sensor configuration | |
4680 | * | |
4681 | ***************************************************************************/ | |
4682 | ||
4683 | /* This initializes the OV7610, OV7620, or OV76BE sensor. The OV76BE uses | |
4684 | * the same register settings as the OV7610, since they are very similar. | |
4685 | */ | |
4686 | static int | |
4687 | ov7xx0_configure(struct usb_ov511 *ov) | |
4688 | { | |
4689 | int i, success; | |
4690 | int rc; | |
4691 | ||
4692 | /* Lawrence Glaister <lg@jfm.bc.ca> reports: | |
4693 | * | |
4694 | * Register 0x0f in the 7610 has the following effects: | |
4695 | * | |
4696 | * 0x85 (AEC method 1): Best overall, good contrast range | |
4697 | * 0x45 (AEC method 2): Very overexposed | |
4698 | * 0xa5 (spec sheet default): Ok, but the black level is | |
4699 | * shifted resulting in loss of contrast | |
4700 | * 0x05 (old driver setting): very overexposed, too much | |
4701 | * contrast | |
4702 | */ | |
4703 | static struct ov511_regvals aRegvalsNorm7610[] = { | |
4704 | { OV511_I2C_BUS, 0x10, 0xff }, | |
4705 | { OV511_I2C_BUS, 0x16, 0x06 }, | |
4706 | { OV511_I2C_BUS, 0x28, 0x24 }, | |
4707 | { OV511_I2C_BUS, 0x2b, 0xac }, | |
4708 | { OV511_I2C_BUS, 0x12, 0x00 }, | |
4709 | { OV511_I2C_BUS, 0x38, 0x81 }, | |
4710 | { OV511_I2C_BUS, 0x28, 0x24 }, /* 0c */ | |
4711 | { OV511_I2C_BUS, 0x0f, 0x85 }, /* lg's setting */ | |
4712 | { OV511_I2C_BUS, 0x15, 0x01 }, | |
4713 | { OV511_I2C_BUS, 0x20, 0x1c }, | |
4714 | { OV511_I2C_BUS, 0x23, 0x2a }, | |
4715 | { OV511_I2C_BUS, 0x24, 0x10 }, | |
4716 | { OV511_I2C_BUS, 0x25, 0x8a }, | |
4717 | { OV511_I2C_BUS, 0x26, 0xa2 }, | |
4718 | { OV511_I2C_BUS, 0x27, 0xc2 }, | |
4719 | { OV511_I2C_BUS, 0x2a, 0x04 }, | |
4720 | { OV511_I2C_BUS, 0x2c, 0xfe }, | |
4721 | { OV511_I2C_BUS, 0x2d, 0x93 }, | |
4722 | { OV511_I2C_BUS, 0x30, 0x71 }, | |
4723 | { OV511_I2C_BUS, 0x31, 0x60 }, | |
4724 | { OV511_I2C_BUS, 0x32, 0x26 }, | |
4725 | { OV511_I2C_BUS, 0x33, 0x20 }, | |
4726 | { OV511_I2C_BUS, 0x34, 0x48 }, | |
4727 | { OV511_I2C_BUS, 0x12, 0x24 }, | |
4728 | { OV511_I2C_BUS, 0x11, 0x01 }, | |
4729 | { OV511_I2C_BUS, 0x0c, 0x24 }, | |
4730 | { OV511_I2C_BUS, 0x0d, 0x24 }, | |
4731 | { OV511_DONE_BUS, 0x0, 0x00 }, | |
4732 | }; | |
4733 | ||
4734 | static struct ov511_regvals aRegvalsNorm7620[] = { | |
4735 | { OV511_I2C_BUS, 0x00, 0x00 }, | |
4736 | { OV511_I2C_BUS, 0x01, 0x80 }, | |
4737 | { OV511_I2C_BUS, 0x02, 0x80 }, | |
4738 | { OV511_I2C_BUS, 0x03, 0xc0 }, | |
4739 | { OV511_I2C_BUS, 0x06, 0x60 }, | |
4740 | { OV511_I2C_BUS, 0x07, 0x00 }, | |
4741 | { OV511_I2C_BUS, 0x0c, 0x24 }, | |
4742 | { OV511_I2C_BUS, 0x0c, 0x24 }, | |
4743 | { OV511_I2C_BUS, 0x0d, 0x24 }, | |
4744 | { OV511_I2C_BUS, 0x11, 0x01 }, | |
4745 | { OV511_I2C_BUS, 0x12, 0x24 }, | |
4746 | { OV511_I2C_BUS, 0x13, 0x01 }, | |
4747 | { OV511_I2C_BUS, 0x14, 0x84 }, | |
4748 | { OV511_I2C_BUS, 0x15, 0x01 }, | |
4749 | { OV511_I2C_BUS, 0x16, 0x03 }, | |
4750 | { OV511_I2C_BUS, 0x17, 0x2f }, | |
4751 | { OV511_I2C_BUS, 0x18, 0xcf }, | |
4752 | { OV511_I2C_BUS, 0x19, 0x06 }, | |
4753 | { OV511_I2C_BUS, 0x1a, 0xf5 }, | |
4754 | { OV511_I2C_BUS, 0x1b, 0x00 }, | |
4755 | { OV511_I2C_BUS, 0x20, 0x18 }, | |
4756 | { OV511_I2C_BUS, 0x21, 0x80 }, | |
4757 | { OV511_I2C_BUS, 0x22, 0x80 }, | |
4758 | { OV511_I2C_BUS, 0x23, 0x00 }, | |
4759 | { OV511_I2C_BUS, 0x26, 0xa2 }, | |
4760 | { OV511_I2C_BUS, 0x27, 0xea }, | |
4761 | { OV511_I2C_BUS, 0x28, 0x20 }, | |
4762 | { OV511_I2C_BUS, 0x29, 0x00 }, | |
4763 | { OV511_I2C_BUS, 0x2a, 0x10 }, | |
4764 | { OV511_I2C_BUS, 0x2b, 0x00 }, | |
4765 | { OV511_I2C_BUS, 0x2c, 0x88 }, | |
4766 | { OV511_I2C_BUS, 0x2d, 0x91 }, | |
4767 | { OV511_I2C_BUS, 0x2e, 0x80 }, | |
4768 | { OV511_I2C_BUS, 0x2f, 0x44 }, | |
4769 | { OV511_I2C_BUS, 0x60, 0x27 }, | |
4770 | { OV511_I2C_BUS, 0x61, 0x02 }, | |
4771 | { OV511_I2C_BUS, 0x62, 0x5f }, | |
4772 | { OV511_I2C_BUS, 0x63, 0xd5 }, | |
4773 | { OV511_I2C_BUS, 0x64, 0x57 }, | |
4774 | { OV511_I2C_BUS, 0x65, 0x83 }, | |
4775 | { OV511_I2C_BUS, 0x66, 0x55 }, | |
4776 | { OV511_I2C_BUS, 0x67, 0x92 }, | |
4777 | { OV511_I2C_BUS, 0x68, 0xcf }, | |
4778 | { OV511_I2C_BUS, 0x69, 0x76 }, | |
4779 | { OV511_I2C_BUS, 0x6a, 0x22 }, | |
4780 | { OV511_I2C_BUS, 0x6b, 0x00 }, | |
4781 | { OV511_I2C_BUS, 0x6c, 0x02 }, | |
4782 | { OV511_I2C_BUS, 0x6d, 0x44 }, | |
4783 | { OV511_I2C_BUS, 0x6e, 0x80 }, | |
4784 | { OV511_I2C_BUS, 0x6f, 0x1d }, | |
4785 | { OV511_I2C_BUS, 0x70, 0x8b }, | |
4786 | { OV511_I2C_BUS, 0x71, 0x00 }, | |
4787 | { OV511_I2C_BUS, 0x72, 0x14 }, | |
4788 | { OV511_I2C_BUS, 0x73, 0x54 }, | |
4789 | { OV511_I2C_BUS, 0x74, 0x00 }, | |
4790 | { OV511_I2C_BUS, 0x75, 0x8e }, | |
4791 | { OV511_I2C_BUS, 0x76, 0x00 }, | |
4792 | { OV511_I2C_BUS, 0x77, 0xff }, | |
4793 | { OV511_I2C_BUS, 0x78, 0x80 }, | |
4794 | { OV511_I2C_BUS, 0x79, 0x80 }, | |
4795 | { OV511_I2C_BUS, 0x7a, 0x80 }, | |
4796 | { OV511_I2C_BUS, 0x7b, 0xe2 }, | |
4797 | { OV511_I2C_BUS, 0x7c, 0x00 }, | |
4798 | { OV511_DONE_BUS, 0x0, 0x00 }, | |
4799 | }; | |
4800 | ||
4801 | PDEBUG(4, "starting configuration"); | |
4802 | ||
4803 | /* This looks redundant, but is necessary for WebCam 3 */ | |
4804 | ov->primary_i2c_slave = OV7xx0_SID; | |
4805 | if (ov51x_set_slave_ids(ov, OV7xx0_SID) < 0) | |
4806 | return -1; | |
4807 | ||
4808 | if (init_ov_sensor(ov) >= 0) { | |
4809 | PDEBUG(1, "OV7xx0 sensor initalized (method 1)"); | |
4810 | } else { | |
4811 | /* Reset the 76xx */ | |
4812 | if (i2c_w(ov, 0x12, 0x80) < 0) | |
4813 | return -1; | |
4814 | ||
4815 | /* Wait for it to initialize */ | |
4816 | msleep(150); | |
4817 | ||
4818 | i = 0; | |
4819 | success = 0; | |
4820 | while (i <= i2c_detect_tries) { | |
4821 | if ((i2c_r(ov, OV7610_REG_ID_HIGH) == 0x7F) && | |
4822 | (i2c_r(ov, OV7610_REG_ID_LOW) == 0xA2)) { | |
4823 | success = 1; | |
4824 | break; | |
4825 | } else { | |
4826 | i++; | |
4827 | } | |
4828 | } | |
4829 | ||
4830 | // Was (i == i2c_detect_tries) previously. This obviously used to always report | |
4831 | // success. Whether anyone actually depended on that bug is unknown | |
4832 | if ((i >= i2c_detect_tries) && (success == 0)) { | |
4833 | err("Failed to read sensor ID. You might not have an"); | |
4834 | err("OV7610/20, or it may be not responding. Report"); | |
4835 | err("this to " EMAIL); | |
4836 | err("This is only a warning. You can attempt to use"); | |
4837 | err("your camera anyway"); | |
4838 | // Only issue a warning for now | |
4839 | // return -1; | |
4840 | } else { | |
4841 | PDEBUG(1, "OV7xx0 initialized (method 2, %dx)", i+1); | |
4842 | } | |
4843 | } | |
4844 | ||
4845 | /* Detect sensor (sub)type */ | |
4846 | rc = i2c_r(ov, OV7610_REG_COM_I); | |
4847 | ||
4848 | if (rc < 0) { | |
4849 | err("Error detecting sensor type"); | |
4850 | return -1; | |
4851 | } else if ((rc & 3) == 3) { | |
4852 | info("Sensor is an OV7610"); | |
4853 | ov->sensor = SEN_OV7610; | |
4854 | } else if ((rc & 3) == 1) { | |
4855 | /* I don't know what's different about the 76BE yet. */ | |
4856 | if (i2c_r(ov, 0x15) & 1) | |
4857 | info("Sensor is an OV7620AE"); | |
4858 | else | |
4859 | info("Sensor is an OV76BE"); | |
4860 | ||
4861 | /* OV511+ will return all zero isoc data unless we | |
4862 | * configure the sensor as a 7620. Someone needs to | |
4863 | * find the exact reg. setting that causes this. */ | |
4864 | if (ov->bridge == BRG_OV511PLUS) { | |
4865 | info("Enabling 511+/7620AE workaround"); | |
4866 | ov->sensor = SEN_OV7620; | |
4867 | } else { | |
4868 | ov->sensor = SEN_OV76BE; | |
4869 | } | |
4870 | } else if ((rc & 3) == 0) { | |
4871 | info("Sensor is an OV7620"); | |
4872 | ov->sensor = SEN_OV7620; | |
4873 | } else { | |
4874 | err("Unknown image sensor version: %d", rc & 3); | |
4875 | return -1; | |
4876 | } | |
4877 | ||
4878 | if (ov->sensor == SEN_OV7620) { | |
4879 | PDEBUG(4, "Writing 7620 registers"); | |
4880 | if (write_regvals(ov, aRegvalsNorm7620)) | |
4881 | return -1; | |
4882 | } else { | |
4883 | PDEBUG(4, "Writing 7610 registers"); | |
4884 | if (write_regvals(ov, aRegvalsNorm7610)) | |
4885 | return -1; | |
4886 | } | |
4887 | ||
4888 | /* Set sensor-specific vars */ | |
4889 | ov->maxwidth = 640; | |
4890 | ov->maxheight = 480; | |
4891 | ov->minwidth = 64; | |
4892 | ov->minheight = 48; | |
4893 | ||
4894 | // FIXME: These do not match the actual settings yet | |
4895 | ov->brightness = 0x80 << 8; | |
4896 | ov->contrast = 0x80 << 8; | |
4897 | ov->colour = 0x80 << 8; | |
4898 | ov->hue = 0x80 << 8; | |
4899 | ||
4900 | return 0; | |
4901 | } | |
4902 | ||
4903 | /* This initializes the OV6620, OV6630, OV6630AE, or OV6630AF sensor. */ | |
4904 | static int | |
4905 | ov6xx0_configure(struct usb_ov511 *ov) | |
4906 | { | |
4907 | int rc; | |
4908 | ||
4909 | static struct ov511_regvals aRegvalsNorm6x20[] = { | |
4910 | { OV511_I2C_BUS, 0x12, 0x80 }, /* reset */ | |
4911 | { OV511_I2C_BUS, 0x11, 0x01 }, | |
4912 | { OV511_I2C_BUS, 0x03, 0x60 }, | |
4913 | { OV511_I2C_BUS, 0x05, 0x7f }, /* For when autoadjust is off */ | |
4914 | { OV511_I2C_BUS, 0x07, 0xa8 }, | |
4915 | /* The ratio of 0x0c and 0x0d controls the white point */ | |
4916 | { OV511_I2C_BUS, 0x0c, 0x24 }, | |
4917 | { OV511_I2C_BUS, 0x0d, 0x24 }, | |
4918 | { OV511_I2C_BUS, 0x0f, 0x15 }, /* COMS */ | |
4919 | { OV511_I2C_BUS, 0x10, 0x75 }, /* AEC Exposure time */ | |
4920 | { OV511_I2C_BUS, 0x12, 0x24 }, /* Enable AGC */ | |
4921 | { OV511_I2C_BUS, 0x14, 0x04 }, | |
4922 | /* 0x16: 0x06 helps frame stability with moving objects */ | |
4923 | { OV511_I2C_BUS, 0x16, 0x06 }, | |
4924 | // { OV511_I2C_BUS, 0x20, 0x30 }, /* Aperture correction enable */ | |
4925 | { OV511_I2C_BUS, 0x26, 0xb2 }, /* BLC enable */ | |
4926 | /* 0x28: 0x05 Selects RGB format if RGB on */ | |
4927 | { OV511_I2C_BUS, 0x28, 0x05 }, | |
4928 | { OV511_I2C_BUS, 0x2a, 0x04 }, /* Disable framerate adjust */ | |
4929 | // { OV511_I2C_BUS, 0x2b, 0xac }, /* Framerate; Set 2a[7] first */ | |
4930 | { OV511_I2C_BUS, 0x2d, 0x99 }, | |
093cf723 | 4931 | { OV511_I2C_BUS, 0x33, 0xa0 }, /* Color Processing Parameter */ |
1da177e4 LT |
4932 | { OV511_I2C_BUS, 0x34, 0xd2 }, /* Max A/D range */ |
4933 | { OV511_I2C_BUS, 0x38, 0x8b }, | |
4934 | { OV511_I2C_BUS, 0x39, 0x40 }, | |
4935 | ||
4936 | { OV511_I2C_BUS, 0x3c, 0x39 }, /* Enable AEC mode changing */ | |
4937 | { OV511_I2C_BUS, 0x3c, 0x3c }, /* Change AEC mode */ | |
4938 | { OV511_I2C_BUS, 0x3c, 0x24 }, /* Disable AEC mode changing */ | |
4939 | ||
4940 | { OV511_I2C_BUS, 0x3d, 0x80 }, | |
4941 | /* These next two registers (0x4a, 0x4b) are undocumented. They | |
4942 | * control the color balance */ | |
4943 | { OV511_I2C_BUS, 0x4a, 0x80 }, | |
4944 | { OV511_I2C_BUS, 0x4b, 0x80 }, | |
4945 | { OV511_I2C_BUS, 0x4d, 0xd2 }, /* This reduces noise a bit */ | |
4946 | { OV511_I2C_BUS, 0x4e, 0xc1 }, | |
4947 | { OV511_I2C_BUS, 0x4f, 0x04 }, | |
4948 | // Do 50-53 have any effect? | |
4949 | // Toggle 0x12[2] off and on here? | |
4950 | { OV511_DONE_BUS, 0x0, 0x00 }, /* END MARKER */ | |
4951 | }; | |
4952 | ||
4953 | static struct ov511_regvals aRegvalsNorm6x30[] = { | |
4954 | /*OK*/ { OV511_I2C_BUS, 0x12, 0x80 }, /* reset */ | |
4955 | { OV511_I2C_BUS, 0x11, 0x00 }, | |
4956 | /*OK*/ { OV511_I2C_BUS, 0x03, 0x60 }, | |
4957 | /*0A?*/ { OV511_I2C_BUS, 0x05, 0x7f }, /* For when autoadjust is off */ | |
4958 | { OV511_I2C_BUS, 0x07, 0xa8 }, | |
4959 | /* The ratio of 0x0c and 0x0d controls the white point */ | |
4960 | /*OK*/ { OV511_I2C_BUS, 0x0c, 0x24 }, | |
4961 | /*OK*/ { OV511_I2C_BUS, 0x0d, 0x24 }, | |
4962 | /*A*/ { OV511_I2C_BUS, 0x0e, 0x20 }, | |
4963 | // /*04?*/ { OV511_I2C_BUS, 0x14, 0x80 }, | |
4964 | { OV511_I2C_BUS, 0x16, 0x03 }, | |
4965 | // /*OK*/ { OV511_I2C_BUS, 0x20, 0x30 }, /* Aperture correction enable */ | |
4966 | // 21 & 22? The suggested values look wrong. Go with default | |
4967 | /*A*/ { OV511_I2C_BUS, 0x23, 0xc0 }, | |
4968 | /*A*/ { OV511_I2C_BUS, 0x25, 0x9a }, // Check this against default | |
4969 | // /*OK*/ { OV511_I2C_BUS, 0x26, 0xb2 }, /* BLC enable */ | |
4970 | ||
4971 | /* 0x28: 0x05 Selects RGB format if RGB on */ | |
4972 | // /*04?*/ { OV511_I2C_BUS, 0x28, 0x05 }, | |
4973 | // /*04?*/ { OV511_I2C_BUS, 0x28, 0x45 }, // DEBUG: Tristate UV bus | |
4974 | ||
4975 | /*OK*/ { OV511_I2C_BUS, 0x2a, 0x04 }, /* Disable framerate adjust */ | |
4976 | // /*OK*/ { OV511_I2C_BUS, 0x2b, 0xac }, /* Framerate; Set 2a[7] first */ | |
4977 | { OV511_I2C_BUS, 0x2d, 0x99 }, | |
4978 | // /*A*/ { OV511_I2C_BUS, 0x33, 0x26 }, // Reserved bits on 6620 | |
4979 | // /*d2?*/ { OV511_I2C_BUS, 0x34, 0x03 }, /* Max A/D range */ | |
4980 | // /*8b?*/ { OV511_I2C_BUS, 0x38, 0x83 }, | |
4981 | // /*40?*/ { OV511_I2C_BUS, 0x39, 0xc0 }, // 6630 adds bit 7 | |
4982 | // { OV511_I2C_BUS, 0x3c, 0x39 }, /* Enable AEC mode changing */ | |
4983 | // { OV511_I2C_BUS, 0x3c, 0x3c }, /* Change AEC mode */ | |
4984 | // { OV511_I2C_BUS, 0x3c, 0x24 }, /* Disable AEC mode changing */ | |
4985 | { OV511_I2C_BUS, 0x3d, 0x80 }, | |
4986 | // /*A*/ { OV511_I2C_BUS, 0x3f, 0x0e }, | |
4987 | ||
4988 | /* These next two registers (0x4a, 0x4b) are undocumented. They | |
4989 | * control the color balance */ | |
4990 | // /*OK?*/ { OV511_I2C_BUS, 0x4a, 0x80 }, // Check these | |
4991 | // /*OK?*/ { OV511_I2C_BUS, 0x4b, 0x80 }, | |
4992 | { OV511_I2C_BUS, 0x4d, 0x10 }, /* U = 0.563u, V = 0.714v */ | |
4993 | /*c1?*/ { OV511_I2C_BUS, 0x4e, 0x40 }, | |
4994 | ||
4995 | /* UV average mode, color killer: strongest */ | |
4996 | { OV511_I2C_BUS, 0x4f, 0x07 }, | |
4997 | ||
4998 | { OV511_I2C_BUS, 0x54, 0x23 }, /* Max AGC gain: 18dB */ | |
4999 | { OV511_I2C_BUS, 0x57, 0x81 }, /* (default) */ | |
5000 | { OV511_I2C_BUS, 0x59, 0x01 }, /* AGC dark current comp: +1 */ | |
5001 | { OV511_I2C_BUS, 0x5a, 0x2c }, /* (undocumented) */ | |
5002 | { OV511_I2C_BUS, 0x5b, 0x0f }, /* AWB chrominance levels */ | |
5003 | // { OV511_I2C_BUS, 0x5c, 0x10 }, | |
5004 | { OV511_DONE_BUS, 0x0, 0x00 }, /* END MARKER */ | |
5005 | }; | |
5006 | ||
5007 | PDEBUG(4, "starting sensor configuration"); | |
5008 | ||
5009 | if (init_ov_sensor(ov) < 0) { | |
5010 | err("Failed to read sensor ID. You might not have an OV6xx0,"); | |
5011 | err("or it may be not responding. Report this to " EMAIL); | |
5012 | return -1; | |
5013 | } else { | |
5014 | PDEBUG(1, "OV6xx0 sensor detected"); | |
5015 | } | |
5016 | ||
5017 | /* Detect sensor (sub)type */ | |
5018 | rc = i2c_r(ov, OV7610_REG_COM_I); | |
5019 | ||
5020 | if (rc < 0) { | |
5021 | err("Error detecting sensor type"); | |
5022 | return -1; | |
5023 | } | |
5024 | ||
5025 | if ((rc & 3) == 0) { | |
5026 | ov->sensor = SEN_OV6630; | |
5027 | info("Sensor is an OV6630"); | |
5028 | } else if ((rc & 3) == 1) { | |
5029 | ov->sensor = SEN_OV6620; | |
5030 | info("Sensor is an OV6620"); | |
5031 | } else if ((rc & 3) == 2) { | |
5032 | ov->sensor = SEN_OV6630; | |
5033 | info("Sensor is an OV6630AE"); | |
5034 | } else if ((rc & 3) == 3) { | |
5035 | ov->sensor = SEN_OV6630; | |
5036 | info("Sensor is an OV6630AF"); | |
5037 | } | |
5038 | ||
5039 | /* Set sensor-specific vars */ | |
5040 | ov->maxwidth = 352; | |
5041 | ov->maxheight = 288; | |
5042 | ov->minwidth = 64; | |
5043 | ov->minheight = 48; | |
5044 | ||
5045 | // FIXME: These do not match the actual settings yet | |
5046 | ov->brightness = 0x80 << 8; | |
5047 | ov->contrast = 0x80 << 8; | |
5048 | ov->colour = 0x80 << 8; | |
5049 | ov->hue = 0x80 << 8; | |
5050 | ||
5051 | if (ov->sensor == SEN_OV6620) { | |
5052 | PDEBUG(4, "Writing 6x20 registers"); | |
5053 | if (write_regvals(ov, aRegvalsNorm6x20)) | |
5054 | return -1; | |
5055 | } else { | |
5056 | PDEBUG(4, "Writing 6x30 registers"); | |
5057 | if (write_regvals(ov, aRegvalsNorm6x30)) | |
5058 | return -1; | |
5059 | } | |
5060 | ||
5061 | return 0; | |
5062 | } | |
5063 | ||
5064 | /* This initializes the KS0127 and KS0127B video decoders. */ | |
d56410e0 | 5065 | static int |
1da177e4 LT |
5066 | ks0127_configure(struct usb_ov511 *ov) |
5067 | { | |
5068 | int rc; | |
5069 | ||
5070 | // FIXME: I don't know how to sync or reset it yet | |
5071 | #if 0 | |
5072 | if (ov51x_init_ks_sensor(ov) < 0) { | |
5073 | err("Failed to initialize the KS0127"); | |
5074 | return -1; | |
5075 | } else { | |
5076 | PDEBUG(1, "KS012x(B) sensor detected"); | |
5077 | } | |
5078 | #endif | |
5079 | ||
5080 | /* Detect decoder subtype */ | |
5081 | rc = i2c_r(ov, 0x00); | |
5082 | if (rc < 0) { | |
5083 | err("Error detecting sensor type"); | |
5084 | return -1; | |
5085 | } else if (rc & 0x08) { | |
5086 | rc = i2c_r(ov, 0x3d); | |
5087 | if (rc < 0) { | |
5088 | err("Error detecting sensor type"); | |
5089 | return -1; | |
5090 | } else if ((rc & 0x0f) == 0) { | |
5091 | info("Sensor is a KS0127"); | |
5092 | ov->sensor = SEN_KS0127; | |
5093 | } else if ((rc & 0x0f) == 9) { | |
5094 | info("Sensor is a KS0127B Rev. A"); | |
5095 | ov->sensor = SEN_KS0127B; | |
5096 | } | |
5097 | } else { | |
5098 | err("Error: Sensor is an unsupported KS0122"); | |
5099 | return -1; | |
5100 | } | |
5101 | ||
5102 | /* Set sensor-specific vars */ | |
5103 | ov->maxwidth = 640; | |
5104 | ov->maxheight = 480; | |
5105 | ov->minwidth = 64; | |
5106 | ov->minheight = 48; | |
5107 | ||
5108 | // FIXME: These do not match the actual settings yet | |
5109 | ov->brightness = 0x80 << 8; | |
5110 | ov->contrast = 0x80 << 8; | |
5111 | ov->colour = 0x80 << 8; | |
5112 | ov->hue = 0x80 << 8; | |
5113 | ||
5114 | /* This device is not supported yet. Bail out now... */ | |
5115 | err("This sensor is not supported yet."); | |
5116 | return -1; | |
5117 | ||
5118 | return 0; | |
5119 | } | |
5120 | ||
5121 | /* This initializes the SAA7111A video decoder. */ | |
5122 | static int | |
5123 | saa7111a_configure(struct usb_ov511 *ov) | |
5124 | { | |
5125 | int rc; | |
5126 | ||
5127 | /* Since there is no register reset command, all registers must be | |
5128 | * written, otherwise gives erratic results */ | |
5129 | static struct ov511_regvals aRegvalsNormSAA7111A[] = { | |
5130 | { OV511_I2C_BUS, 0x06, 0xce }, | |
5131 | { OV511_I2C_BUS, 0x07, 0x00 }, | |
5132 | { OV511_I2C_BUS, 0x10, 0x44 }, /* YUV422, 240/286 lines */ | |
5133 | { OV511_I2C_BUS, 0x0e, 0x01 }, /* NTSC M or PAL BGHI */ | |
5134 | { OV511_I2C_BUS, 0x00, 0x00 }, | |
5135 | { OV511_I2C_BUS, 0x01, 0x00 }, | |
5136 | { OV511_I2C_BUS, 0x03, 0x23 }, | |
5137 | { OV511_I2C_BUS, 0x04, 0x00 }, | |
5138 | { OV511_I2C_BUS, 0x05, 0x00 }, | |
5139 | { OV511_I2C_BUS, 0x08, 0xc8 }, /* Auto field freq */ | |
5140 | { OV511_I2C_BUS, 0x09, 0x01 }, /* Chrom. trap off, APER=0.25 */ | |
5141 | { OV511_I2C_BUS, 0x0a, 0x80 }, /* BRIG=128 */ | |
5142 | { OV511_I2C_BUS, 0x0b, 0x40 }, /* CONT=1.0 */ | |
5143 | { OV511_I2C_BUS, 0x0c, 0x40 }, /* SATN=1.0 */ | |
5144 | { OV511_I2C_BUS, 0x0d, 0x00 }, /* HUE=0 */ | |
5145 | { OV511_I2C_BUS, 0x0f, 0x00 }, | |
5146 | { OV511_I2C_BUS, 0x11, 0x0c }, | |
5147 | { OV511_I2C_BUS, 0x12, 0x00 }, | |
5148 | { OV511_I2C_BUS, 0x13, 0x00 }, | |
5149 | { OV511_I2C_BUS, 0x14, 0x00 }, | |
5150 | { OV511_I2C_BUS, 0x15, 0x00 }, | |
5151 | { OV511_I2C_BUS, 0x16, 0x00 }, | |
5152 | { OV511_I2C_BUS, 0x17, 0x00 }, | |
5153 | { OV511_I2C_BUS, 0x02, 0xc0 }, /* Composite input 0 */ | |
5154 | { OV511_DONE_BUS, 0x0, 0x00 }, | |
5155 | }; | |
5156 | ||
5157 | // FIXME: I don't know how to sync or reset it yet | |
5158 | #if 0 | |
5159 | if (ov51x_init_saa_sensor(ov) < 0) { | |
5160 | err("Failed to initialize the SAA7111A"); | |
5161 | return -1; | |
5162 | } else { | |
5163 | PDEBUG(1, "SAA7111A sensor detected"); | |
5164 | } | |
5165 | #endif | |
5166 | ||
5167 | /* 640x480 not supported with PAL */ | |
5168 | if (ov->pal) { | |
5169 | ov->maxwidth = 320; | |
5170 | ov->maxheight = 240; /* Even field only */ | |
5171 | } else { | |
5172 | ov->maxwidth = 640; | |
5173 | ov->maxheight = 480; /* Even/Odd fields */ | |
5174 | } | |
5175 | ||
5176 | ov->minwidth = 320; | |
5177 | ov->minheight = 240; /* Even field only */ | |
5178 | ||
5179 | ov->has_decoder = 1; | |
5180 | ov->num_inputs = 8; | |
5181 | ov->norm = VIDEO_MODE_AUTO; | |
5182 | ov->stop_during_set = 0; /* Decoder guarantees stable image */ | |
5183 | ||
5184 | /* Decoder doesn't change these values, so we use these instead of | |
5185 | * acutally reading the registers (which doesn't work) */ | |
5186 | ov->brightness = 0x80 << 8; | |
5187 | ov->contrast = 0x40 << 9; | |
5188 | ov->colour = 0x40 << 9; | |
5189 | ov->hue = 32768; | |
5190 | ||
5191 | PDEBUG(4, "Writing SAA7111A registers"); | |
5192 | if (write_regvals(ov, aRegvalsNormSAA7111A)) | |
5193 | return -1; | |
5194 | ||
5195 | /* Detect version of decoder. This must be done after writing the | |
d56410e0 | 5196 | * initial regs or the decoder will lock up. */ |
1da177e4 LT |
5197 | rc = i2c_r(ov, 0x00); |
5198 | ||
5199 | if (rc < 0) { | |
5200 | err("Error detecting sensor version"); | |
5201 | return -1; | |
5202 | } else { | |
5203 | info("Sensor is an SAA7111A (version 0x%x)", rc); | |
5204 | ov->sensor = SEN_SAA7111A; | |
5205 | } | |
5206 | ||
5207 | // FIXME: Fix this for OV518(+) | |
5208 | /* Latch to negative edge of clock. Otherwise, we get incorrect | |
5209 | * colors and jitter in the digital signal. */ | |
5210 | if (ov->bclass == BCL_OV511) | |
5211 | reg_w(ov, 0x11, 0x00); | |
5212 | else | |
5213 | warn("SAA7111A not yet supported with OV518/OV518+"); | |
5214 | ||
5215 | return 0; | |
5216 | } | |
5217 | ||
5218 | /* This initializes the OV511/OV511+ and the sensor */ | |
d56410e0 | 5219 | static int |
1da177e4 LT |
5220 | ov511_configure(struct usb_ov511 *ov) |
5221 | { | |
5222 | static struct ov511_regvals aRegvalsInit511[] = { | |
5223 | { OV511_REG_BUS, R51x_SYS_RESET, 0x7f }, | |
d56410e0 MCC |
5224 | { OV511_REG_BUS, R51x_SYS_INIT, 0x01 }, |
5225 | { OV511_REG_BUS, R51x_SYS_RESET, 0x7f }, | |
1da177e4 LT |
5226 | { OV511_REG_BUS, R51x_SYS_INIT, 0x01 }, |
5227 | { OV511_REG_BUS, R51x_SYS_RESET, 0x3f }, | |
5228 | { OV511_REG_BUS, R51x_SYS_INIT, 0x01 }, | |
5229 | { OV511_REG_BUS, R51x_SYS_RESET, 0x3d }, | |
5230 | { OV511_DONE_BUS, 0x0, 0x00}, | |
5231 | }; | |
5232 | ||
5233 | static struct ov511_regvals aRegvalsNorm511[] = { | |
5234 | { OV511_REG_BUS, R511_DRAM_FLOW_CTL, 0x01 }, | |
5235 | { OV511_REG_BUS, R51x_SYS_SNAP, 0x00 }, | |
5236 | { OV511_REG_BUS, R51x_SYS_SNAP, 0x02 }, | |
5237 | { OV511_REG_BUS, R51x_SYS_SNAP, 0x00 }, | |
5238 | { OV511_REG_BUS, R511_FIFO_OPTS, 0x1f }, | |
5239 | { OV511_REG_BUS, R511_COMP_EN, 0x00 }, | |
5240 | { OV511_REG_BUS, R511_COMP_LUT_EN, 0x03 }, | |
5241 | { OV511_DONE_BUS, 0x0, 0x00 }, | |
5242 | }; | |
5243 | ||
5244 | static struct ov511_regvals aRegvalsNorm511Plus[] = { | |
5245 | { OV511_REG_BUS, R511_DRAM_FLOW_CTL, 0xff }, | |
5246 | { OV511_REG_BUS, R51x_SYS_SNAP, 0x00 }, | |
5247 | { OV511_REG_BUS, R51x_SYS_SNAP, 0x02 }, | |
5248 | { OV511_REG_BUS, R51x_SYS_SNAP, 0x00 }, | |
5249 | { OV511_REG_BUS, R511_FIFO_OPTS, 0xff }, | |
5250 | { OV511_REG_BUS, R511_COMP_EN, 0x00 }, | |
5251 | { OV511_REG_BUS, R511_COMP_LUT_EN, 0x03 }, | |
5252 | { OV511_DONE_BUS, 0x0, 0x00 }, | |
5253 | }; | |
5254 | ||
5255 | PDEBUG(4, ""); | |
5256 | ||
5257 | ov->customid = reg_r(ov, R511_SYS_CUST_ID); | |
5258 | if (ov->customid < 0) { | |
5259 | err("Unable to read camera bridge registers"); | |
5260 | goto error; | |
5261 | } | |
5262 | ||
5263 | PDEBUG (1, "CustomID = %d", ov->customid); | |
5264 | ov->desc = symbolic(camlist, ov->customid); | |
5265 | info("model: %s", ov->desc); | |
5266 | ||
5267 | if (0 == strcmp(ov->desc, NOT_DEFINED_STR)) { | |
5268 | err("Camera type (%d) not recognized", ov->customid); | |
5269 | err("Please notify " EMAIL " of the name,"); | |
5270 | err("manufacturer, model, and this number of your camera."); | |
5271 | err("Also include the output of the detection process."); | |
d56410e0 | 5272 | } |
1da177e4 LT |
5273 | |
5274 | if (ov->customid == 70) /* USB Life TV (PAL/SECAM) */ | |
5275 | ov->pal = 1; | |
5276 | ||
5277 | if (write_regvals(ov, aRegvalsInit511)) | |
5278 | goto error; | |
5279 | ||
5280 | if (ov->led_policy == LED_OFF || ov->led_policy == LED_AUTO) | |
5281 | ov51x_led_control(ov, 0); | |
5282 | ||
5283 | /* The OV511+ has undocumented bits in the flow control register. | |
5284 | * Setting it to 0xff fixes the corruption with moving objects. */ | |
5285 | if (ov->bridge == BRG_OV511) { | |
5286 | if (write_regvals(ov, aRegvalsNorm511)) | |
5287 | goto error; | |
5288 | } else if (ov->bridge == BRG_OV511PLUS) { | |
5289 | if (write_regvals(ov, aRegvalsNorm511Plus)) | |
5290 | goto error; | |
5291 | } else { | |
5292 | err("Invalid bridge"); | |
5293 | } | |
5294 | ||
5295 | if (ov511_init_compression(ov)) | |
5296 | goto error; | |
5297 | ||
5298 | ov->packet_numbering = 1; | |
5299 | ov511_set_packet_size(ov, 0); | |
5300 | ||
5301 | ov->snap_enabled = snapshot; | |
5302 | ||
5303 | /* Test for 7xx0 */ | |
5304 | PDEBUG(3, "Testing for 0V7xx0"); | |
5305 | ov->primary_i2c_slave = OV7xx0_SID; | |
5306 | if (ov51x_set_slave_ids(ov, OV7xx0_SID) < 0) | |
5307 | goto error; | |
5308 | ||
5309 | if (i2c_w(ov, 0x12, 0x80) < 0) { | |
5310 | /* Test for 6xx0 */ | |
5311 | PDEBUG(3, "Testing for 0V6xx0"); | |
5312 | ov->primary_i2c_slave = OV6xx0_SID; | |
5313 | if (ov51x_set_slave_ids(ov, OV6xx0_SID) < 0) | |
5314 | goto error; | |
5315 | ||
5316 | if (i2c_w(ov, 0x12, 0x80) < 0) { | |
5317 | /* Test for 8xx0 */ | |
5318 | PDEBUG(3, "Testing for 0V8xx0"); | |
5319 | ov->primary_i2c_slave = OV8xx0_SID; | |
5320 | if (ov51x_set_slave_ids(ov, OV8xx0_SID) < 0) | |
5321 | goto error; | |
5322 | ||
5323 | if (i2c_w(ov, 0x12, 0x80) < 0) { | |
5324 | /* Test for SAA7111A */ | |
5325 | PDEBUG(3, "Testing for SAA7111A"); | |
5326 | ov->primary_i2c_slave = SAA7111A_SID; | |
5327 | if (ov51x_set_slave_ids(ov, SAA7111A_SID) < 0) | |
5328 | goto error; | |
5329 | ||
5330 | if (i2c_w(ov, 0x0d, 0x00) < 0) { | |
5331 | /* Test for KS0127 */ | |
5332 | PDEBUG(3, "Testing for KS0127"); | |
5333 | ov->primary_i2c_slave = KS0127_SID; | |
5334 | if (ov51x_set_slave_ids(ov, KS0127_SID) < 0) | |
5335 | goto error; | |
5336 | ||
5337 | if (i2c_w(ov, 0x10, 0x00) < 0) { | |
5338 | err("Can't determine sensor slave IDs"); | |
d56410e0 | 5339 | goto error; |
1da177e4 LT |
5340 | } else { |
5341 | if (ks0127_configure(ov) < 0) { | |
5342 | err("Failed to configure KS0127"); | |
d56410e0 | 5343 | goto error; |
1da177e4 LT |
5344 | } |
5345 | } | |
5346 | } else { | |
5347 | if (saa7111a_configure(ov) < 0) { | |
5348 | err("Failed to configure SAA7111A"); | |
d56410e0 | 5349 | goto error; |
1da177e4 LT |
5350 | } |
5351 | } | |
5352 | } else { | |
5353 | err("Detected unsupported OV8xx0 sensor"); | |
5354 | goto error; | |
5355 | } | |
5356 | } else { | |
5357 | if (ov6xx0_configure(ov) < 0) { | |
5358 | err("Failed to configure OV6xx0"); | |
d56410e0 | 5359 | goto error; |
1da177e4 LT |
5360 | } |
5361 | } | |
5362 | } else { | |
5363 | if (ov7xx0_configure(ov) < 0) { | |
5364 | err("Failed to configure OV7xx0"); | |
d56410e0 | 5365 | goto error; |
1da177e4 LT |
5366 | } |
5367 | } | |
5368 | ||
5369 | return 0; | |
5370 | ||
5371 | error: | |
5372 | err("OV511 Config failed"); | |
5373 | ||
5374 | return -EBUSY; | |
5375 | } | |
5376 | ||
5377 | /* This initializes the OV518/OV518+ and the sensor */ | |
5378 | static int | |
5379 | ov518_configure(struct usb_ov511 *ov) | |
5380 | { | |
5381 | /* For 518 and 518+ */ | |
5382 | static struct ov511_regvals aRegvalsInit518[] = { | |
5383 | { OV511_REG_BUS, R51x_SYS_RESET, 0x40 }, | |
d56410e0 MCC |
5384 | { OV511_REG_BUS, R51x_SYS_INIT, 0xe1 }, |
5385 | { OV511_REG_BUS, R51x_SYS_RESET, 0x3e }, | |
1da177e4 LT |
5386 | { OV511_REG_BUS, R51x_SYS_INIT, 0xe1 }, |
5387 | { OV511_REG_BUS, R51x_SYS_RESET, 0x00 }, | |
5388 | { OV511_REG_BUS, R51x_SYS_INIT, 0xe1 }, | |
d56410e0 | 5389 | { OV511_REG_BUS, 0x46, 0x00 }, |
1da177e4 LT |
5390 | { OV511_REG_BUS, 0x5d, 0x03 }, |
5391 | { OV511_DONE_BUS, 0x0, 0x00}, | |
5392 | }; | |
5393 | ||
5394 | static struct ov511_regvals aRegvalsNorm518[] = { | |
5395 | { OV511_REG_BUS, R51x_SYS_SNAP, 0x02 }, /* Reset */ | |
5396 | { OV511_REG_BUS, R51x_SYS_SNAP, 0x01 }, /* Enable */ | |
5397 | { OV511_REG_BUS, 0x31, 0x0f }, | |
5398 | { OV511_REG_BUS, 0x5d, 0x03 }, | |
5399 | { OV511_REG_BUS, 0x24, 0x9f }, | |
5400 | { OV511_REG_BUS, 0x25, 0x90 }, | |
5401 | { OV511_REG_BUS, 0x20, 0x00 }, | |
5402 | { OV511_REG_BUS, 0x51, 0x04 }, | |
5403 | { OV511_REG_BUS, 0x71, 0x19 }, | |
5404 | { OV511_DONE_BUS, 0x0, 0x00 }, | |
5405 | }; | |
5406 | ||
5407 | static struct ov511_regvals aRegvalsNorm518Plus[] = { | |
5408 | { OV511_REG_BUS, R51x_SYS_SNAP, 0x02 }, /* Reset */ | |
5409 | { OV511_REG_BUS, R51x_SYS_SNAP, 0x01 }, /* Enable */ | |
5410 | { OV511_REG_BUS, 0x31, 0x0f }, | |
5411 | { OV511_REG_BUS, 0x5d, 0x03 }, | |
5412 | { OV511_REG_BUS, 0x24, 0x9f }, | |
5413 | { OV511_REG_BUS, 0x25, 0x90 }, | |
5414 | { OV511_REG_BUS, 0x20, 0x60 }, | |
5415 | { OV511_REG_BUS, 0x51, 0x02 }, | |
5416 | { OV511_REG_BUS, 0x71, 0x19 }, | |
5417 | { OV511_REG_BUS, 0x40, 0xff }, | |
5418 | { OV511_REG_BUS, 0x41, 0x42 }, | |
5419 | { OV511_REG_BUS, 0x46, 0x00 }, | |
5420 | { OV511_REG_BUS, 0x33, 0x04 }, | |
5421 | { OV511_REG_BUS, 0x21, 0x19 }, | |
5422 | { OV511_REG_BUS, 0x3f, 0x10 }, | |
5423 | { OV511_DONE_BUS, 0x0, 0x00 }, | |
5424 | }; | |
5425 | ||
5426 | PDEBUG(4, ""); | |
5427 | ||
5428 | /* First 5 bits of custom ID reg are a revision ID on OV518 */ | |
5429 | info("Device revision %d", 0x1F & reg_r(ov, R511_SYS_CUST_ID)); | |
5430 | ||
5431 | /* Give it the default description */ | |
5432 | ov->desc = symbolic(camlist, 0); | |
5433 | ||
5434 | if (write_regvals(ov, aRegvalsInit518)) | |
5435 | goto error; | |
5436 | ||
5437 | /* Set LED GPIO pin to output mode */ | |
5438 | if (reg_w_mask(ov, 0x57, 0x00, 0x02) < 0) | |
5439 | goto error; | |
5440 | ||
5441 | /* LED is off by default with OV518; have to explicitly turn it on */ | |
5442 | if (ov->led_policy == LED_OFF || ov->led_policy == LED_AUTO) | |
5443 | ov51x_led_control(ov, 0); | |
5444 | else | |
5445 | ov51x_led_control(ov, 1); | |
5446 | ||
5447 | /* Don't require compression if dumppix is enabled; otherwise it's | |
5448 | * required. OV518 has no uncompressed mode, to save RAM. */ | |
5449 | if (!dumppix && !ov->compress) { | |
5450 | ov->compress = 1; | |
5451 | warn("Compression required with OV518...enabling"); | |
5452 | } | |
5453 | ||
5454 | if (ov->bridge == BRG_OV518) { | |
5455 | if (write_regvals(ov, aRegvalsNorm518)) | |
5456 | goto error; | |
5457 | } else if (ov->bridge == BRG_OV518PLUS) { | |
5458 | if (write_regvals(ov, aRegvalsNorm518Plus)) | |
5459 | goto error; | |
5460 | } else { | |
5461 | err("Invalid bridge"); | |
5462 | } | |
5463 | ||
5464 | if (reg_w(ov, 0x2f, 0x80) < 0) | |
5465 | goto error; | |
5466 | ||
5467 | if (ov518_init_compression(ov)) | |
5468 | goto error; | |
5469 | ||
5470 | if (ov->bridge == BRG_OV518) | |
5471 | { | |
5472 | struct usb_interface *ifp; | |
5473 | struct usb_host_interface *alt; | |
5474 | __u16 mxps = 0; | |
5475 | ||
5476 | ifp = usb_ifnum_to_if(ov->dev, 0); | |
5477 | if (ifp) { | |
5478 | alt = usb_altnum_to_altsetting(ifp, 7); | |
5479 | if (alt) | |
5480 | mxps = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize); | |
5481 | } | |
5482 | ||
5483 | /* Some OV518s have packet numbering by default, some don't */ | |
5484 | if (mxps == 897) | |
5485 | ov->packet_numbering = 1; | |
5486 | else | |
5487 | ov->packet_numbering = 0; | |
5488 | } else { | |
5489 | /* OV518+ has packet numbering turned on by default */ | |
5490 | ov->packet_numbering = 1; | |
5491 | } | |
5492 | ||
5493 | ov518_set_packet_size(ov, 0); | |
5494 | ||
5495 | ov->snap_enabled = snapshot; | |
5496 | ||
5497 | /* Test for 76xx */ | |
5498 | ov->primary_i2c_slave = OV7xx0_SID; | |
5499 | if (ov51x_set_slave_ids(ov, OV7xx0_SID) < 0) | |
5500 | goto error; | |
5501 | ||
5502 | /* The OV518 must be more aggressive about sensor detection since | |
5503 | * I2C write will never fail if the sensor is not present. We have | |
5504 | * to try to initialize the sensor to detect its presence */ | |
5505 | ||
5506 | if (init_ov_sensor(ov) < 0) { | |
5507 | /* Test for 6xx0 */ | |
5508 | ov->primary_i2c_slave = OV6xx0_SID; | |
5509 | if (ov51x_set_slave_ids(ov, OV6xx0_SID) < 0) | |
5510 | goto error; | |
5511 | ||
5512 | if (init_ov_sensor(ov) < 0) { | |
5513 | /* Test for 8xx0 */ | |
5514 | ov->primary_i2c_slave = OV8xx0_SID; | |
5515 | if (ov51x_set_slave_ids(ov, OV8xx0_SID) < 0) | |
5516 | goto error; | |
5517 | ||
5518 | if (init_ov_sensor(ov) < 0) { | |
5519 | err("Can't determine sensor slave IDs"); | |
d56410e0 | 5520 | goto error; |
1da177e4 LT |
5521 | } else { |
5522 | err("Detected unsupported OV8xx0 sensor"); | |
5523 | goto error; | |
5524 | } | |
5525 | } else { | |
5526 | if (ov6xx0_configure(ov) < 0) { | |
5527 | err("Failed to configure OV6xx0"); | |
d56410e0 | 5528 | goto error; |
1da177e4 LT |
5529 | } |
5530 | } | |
5531 | } else { | |
5532 | if (ov7xx0_configure(ov) < 0) { | |
5533 | err("Failed to configure OV7xx0"); | |
d56410e0 | 5534 | goto error; |
1da177e4 LT |
5535 | } |
5536 | } | |
5537 | ||
5538 | ov->maxwidth = 352; | |
5539 | ov->maxheight = 288; | |
5540 | ||
5541 | // The OV518 cannot go as low as the sensor can | |
5542 | ov->minwidth = 160; | |
5543 | ov->minheight = 120; | |
5544 | ||
5545 | return 0; | |
5546 | ||
5547 | error: | |
5548 | err("OV518 Config failed"); | |
5549 | ||
5550 | return -EBUSY; | |
5551 | } | |
5552 | ||
5553 | /**************************************************************************** | |
5554 | * sysfs | |
5555 | ***************************************************************************/ | |
5556 | ||
5557 | static inline struct usb_ov511 *cd_to_ov(struct class_device *cd) | |
5558 | { | |
5559 | struct video_device *vdev = to_video_device(cd); | |
5560 | return video_get_drvdata(vdev); | |
5561 | } | |
5562 | ||
5563 | static ssize_t show_custom_id(struct class_device *cd, char *buf) | |
5564 | { | |
5565 | struct usb_ov511 *ov = cd_to_ov(cd); | |
5566 | return sprintf(buf, "%d\n", ov->customid); | |
d56410e0 | 5567 | } |
1da177e4 LT |
5568 | static CLASS_DEVICE_ATTR(custom_id, S_IRUGO, show_custom_id, NULL); |
5569 | ||
5570 | static ssize_t show_model(struct class_device *cd, char *buf) | |
5571 | { | |
5572 | struct usb_ov511 *ov = cd_to_ov(cd); | |
5573 | return sprintf(buf, "%s\n", ov->desc); | |
d56410e0 | 5574 | } |
1da177e4 LT |
5575 | static CLASS_DEVICE_ATTR(model, S_IRUGO, show_model, NULL); |
5576 | ||
5577 | static ssize_t show_bridge(struct class_device *cd, char *buf) | |
5578 | { | |
5579 | struct usb_ov511 *ov = cd_to_ov(cd); | |
5580 | return sprintf(buf, "%s\n", symbolic(brglist, ov->bridge)); | |
d56410e0 | 5581 | } |
1da177e4 LT |
5582 | static CLASS_DEVICE_ATTR(bridge, S_IRUGO, show_bridge, NULL); |
5583 | ||
5584 | static ssize_t show_sensor(struct class_device *cd, char *buf) | |
5585 | { | |
5586 | struct usb_ov511 *ov = cd_to_ov(cd); | |
5587 | return sprintf(buf, "%s\n", symbolic(senlist, ov->sensor)); | |
d56410e0 | 5588 | } |
1da177e4 LT |
5589 | static CLASS_DEVICE_ATTR(sensor, S_IRUGO, show_sensor, NULL); |
5590 | ||
5591 | static ssize_t show_brightness(struct class_device *cd, char *buf) | |
5592 | { | |
5593 | struct usb_ov511 *ov = cd_to_ov(cd); | |
5594 | unsigned short x; | |
5595 | ||
5596 | if (!ov->dev) | |
5597 | return -ENODEV; | |
5598 | sensor_get_brightness(ov, &x); | |
5599 | return sprintf(buf, "%d\n", x >> 8); | |
d56410e0 | 5600 | } |
1da177e4 LT |
5601 | static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL); |
5602 | ||
5603 | static ssize_t show_saturation(struct class_device *cd, char *buf) | |
5604 | { | |
5605 | struct usb_ov511 *ov = cd_to_ov(cd); | |
5606 | unsigned short x; | |
5607 | ||
5608 | if (!ov->dev) | |
5609 | return -ENODEV; | |
5610 | sensor_get_saturation(ov, &x); | |
5611 | return sprintf(buf, "%d\n", x >> 8); | |
d56410e0 | 5612 | } |
1da177e4 LT |
5613 | static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL); |
5614 | ||
5615 | static ssize_t show_contrast(struct class_device *cd, char *buf) | |
5616 | { | |
5617 | struct usb_ov511 *ov = cd_to_ov(cd); | |
5618 | unsigned short x; | |
5619 | ||
5620 | if (!ov->dev) | |
5621 | return -ENODEV; | |
5622 | sensor_get_contrast(ov, &x); | |
5623 | return sprintf(buf, "%d\n", x >> 8); | |
d56410e0 | 5624 | } |
1da177e4 LT |
5625 | static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL); |
5626 | ||
5627 | static ssize_t show_hue(struct class_device *cd, char *buf) | |
5628 | { | |
5629 | struct usb_ov511 *ov = cd_to_ov(cd); | |
5630 | unsigned short x; | |
5631 | ||
5632 | if (!ov->dev) | |
5633 | return -ENODEV; | |
5634 | sensor_get_hue(ov, &x); | |
5635 | return sprintf(buf, "%d\n", x >> 8); | |
d56410e0 | 5636 | } |
1da177e4 LT |
5637 | static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); |
5638 | ||
5639 | static ssize_t show_exposure(struct class_device *cd, char *buf) | |
5640 | { | |
5641 | struct usb_ov511 *ov = cd_to_ov(cd); | |
addf36fe | 5642 | unsigned char exp = 0; |
1da177e4 LT |
5643 | |
5644 | if (!ov->dev) | |
5645 | return -ENODEV; | |
5646 | sensor_get_exposure(ov, &exp); | |
5647 | return sprintf(buf, "%d\n", exp >> 8); | |
d56410e0 | 5648 | } |
1da177e4 LT |
5649 | static CLASS_DEVICE_ATTR(exposure, S_IRUGO, show_exposure, NULL); |
5650 | ||
5651 | static void ov_create_sysfs(struct video_device *vdev) | |
5652 | { | |
5653 | video_device_create_file(vdev, &class_device_attr_custom_id); | |
5654 | video_device_create_file(vdev, &class_device_attr_model); | |
5655 | video_device_create_file(vdev, &class_device_attr_bridge); | |
5656 | video_device_create_file(vdev, &class_device_attr_sensor); | |
5657 | video_device_create_file(vdev, &class_device_attr_brightness); | |
5658 | video_device_create_file(vdev, &class_device_attr_saturation); | |
5659 | video_device_create_file(vdev, &class_device_attr_contrast); | |
5660 | video_device_create_file(vdev, &class_device_attr_hue); | |
5661 | video_device_create_file(vdev, &class_device_attr_exposure); | |
5662 | } | |
5663 | ||
5664 | /**************************************************************************** | |
5665 | * USB routines | |
5666 | ***************************************************************************/ | |
5667 | ||
5668 | static int | |
5669 | ov51x_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
5670 | { | |
5671 | struct usb_device *dev = interface_to_usbdev(intf); | |
5672 | struct usb_interface_descriptor *idesc; | |
5673 | struct usb_ov511 *ov; | |
5674 | int i; | |
5675 | ||
5676 | PDEBUG(1, "probing for device..."); | |
5677 | ||
5678 | /* We don't handle multi-config cameras */ | |
5679 | if (dev->descriptor.bNumConfigurations != 1) | |
5680 | return -ENODEV; | |
5681 | ||
5682 | idesc = &intf->cur_altsetting->desc; | |
5683 | ||
5684 | if (idesc->bInterfaceClass != 0xFF) | |
5685 | return -ENODEV; | |
5686 | if (idesc->bInterfaceSubClass != 0x00) | |
5687 | return -ENODEV; | |
5688 | ||
80b6ca48 | 5689 | if ((ov = kzalloc(sizeof(*ov), GFP_KERNEL)) == NULL) { |
1da177e4 LT |
5690 | err("couldn't kmalloc ov struct"); |
5691 | goto error_out; | |
5692 | } | |
5693 | ||
1da177e4 LT |
5694 | ov->dev = dev; |
5695 | ov->iface = idesc->bInterfaceNumber; | |
5696 | ov->led_policy = led; | |
5697 | ov->compress = compress; | |
5698 | ov->lightfreq = lightfreq; | |
5699 | ov->num_inputs = 1; /* Video decoder init functs. change this */ | |
5700 | ov->stop_during_set = !fastset; | |
5701 | ov->backlight = backlight; | |
5702 | ov->mirror = mirror; | |
5703 | ov->auto_brt = autobright; | |
5704 | ov->auto_gain = autogain; | |
5705 | ov->auto_exp = autoexp; | |
5706 | ||
5707 | switch (le16_to_cpu(dev->descriptor.idProduct)) { | |
5708 | case PROD_OV511: | |
5709 | ov->bridge = BRG_OV511; | |
5710 | ov->bclass = BCL_OV511; | |
5711 | break; | |
5712 | case PROD_OV511PLUS: | |
5713 | ov->bridge = BRG_OV511PLUS; | |
5714 | ov->bclass = BCL_OV511; | |
5715 | break; | |
5716 | case PROD_OV518: | |
5717 | ov->bridge = BRG_OV518; | |
5718 | ov->bclass = BCL_OV518; | |
5719 | break; | |
5720 | case PROD_OV518PLUS: | |
5721 | ov->bridge = BRG_OV518PLUS; | |
5722 | ov->bclass = BCL_OV518; | |
5723 | break; | |
5724 | case PROD_ME2CAM: | |
5725 | if (le16_to_cpu(dev->descriptor.idVendor) != VEND_MATTEL) | |
5726 | goto error; | |
5727 | ov->bridge = BRG_OV511PLUS; | |
5728 | ov->bclass = BCL_OV511; | |
5729 | break; | |
5730 | default: | |
5731 | err("Unknown product ID 0x%04x", le16_to_cpu(dev->descriptor.idProduct)); | |
5732 | goto error; | |
5733 | } | |
5734 | ||
5735 | info("USB %s video device found", symbolic(brglist, ov->bridge)); | |
5736 | ||
5737 | init_waitqueue_head(&ov->wq); | |
5738 | ||
4186ecf8 AV |
5739 | mutex_init(&ov->lock); /* to 1 == available */ |
5740 | mutex_init(&ov->buf_lock); | |
5741 | mutex_init(&ov->i2c_lock); | |
5742 | mutex_init(&ov->cbuf_lock); | |
1da177e4 LT |
5743 | |
5744 | ov->buf_state = BUF_NOT_ALLOCATED; | |
5745 | ||
5746 | if (usb_make_path(dev, ov->usb_path, OV511_USB_PATH_LEN) < 0) { | |
5747 | err("usb_make_path error"); | |
5748 | goto error; | |
5749 | } | |
5750 | ||
5751 | /* Allocate control transfer buffer. */ | |
5752 | /* Must be kmalloc()'ed, for DMA compatibility */ | |
5753 | ov->cbuf = kmalloc(OV511_CBUF_SIZE, GFP_KERNEL); | |
5754 | if (!ov->cbuf) | |
5755 | goto error; | |
5756 | ||
5757 | if (ov->bclass == BCL_OV518) { | |
5758 | if (ov518_configure(ov) < 0) | |
5759 | goto error; | |
5760 | } else { | |
5761 | if (ov511_configure(ov) < 0) | |
5762 | goto error; | |
5763 | } | |
5764 | ||
5765 | for (i = 0; i < OV511_NUMFRAMES; i++) { | |
5766 | ov->frame[i].framenum = i; | |
5767 | init_waitqueue_head(&ov->frame[i].wq); | |
5768 | } | |
5769 | ||
5770 | for (i = 0; i < OV511_NUMSBUF; i++) { | |
5771 | ov->sbuf[i].ov = ov; | |
5772 | spin_lock_init(&ov->sbuf[i].lock); | |
5773 | ov->sbuf[i].n = i; | |
5774 | } | |
5775 | ||
5776 | /* Unnecessary? (This is done on open(). Need to make sure variables | |
5777 | * are properly initialized without this before removing it, though). */ | |
5778 | if (ov51x_set_default_params(ov) < 0) | |
5779 | goto error; | |
5780 | ||
5781 | #ifdef OV511_DEBUG | |
5782 | if (dump_bridge) { | |
5783 | if (ov->bclass == BCL_OV511) | |
5784 | ov511_dump_regs(ov); | |
5785 | else | |
5786 | ov518_dump_regs(ov); | |
5787 | } | |
5788 | #endif | |
5789 | ||
5790 | ov->vdev = video_device_alloc(); | |
5791 | if (!ov->vdev) | |
5792 | goto error; | |
5793 | ||
5794 | memcpy(ov->vdev, &vdev_template, sizeof(*ov->vdev)); | |
5795 | ov->vdev->dev = &dev->dev; | |
5796 | video_set_drvdata(ov->vdev, ov); | |
5797 | ||
5798 | for (i = 0; i < OV511_MAX_UNIT_VIDEO; i++) { | |
5799 | /* Minor 0 cannot be specified; assume user wants autodetect */ | |
5800 | if (unit_video[i] == 0) | |
5801 | break; | |
5802 | ||
5803 | if (video_register_device(ov->vdev, VFL_TYPE_GRABBER, | |
5804 | unit_video[i]) >= 0) { | |
5805 | break; | |
5806 | } | |
5807 | } | |
5808 | ||
5809 | /* Use the next available one */ | |
5810 | if ((ov->vdev->minor == -1) && | |
5811 | video_register_device(ov->vdev, VFL_TYPE_GRABBER, -1) < 0) { | |
5812 | err("video_register_device failed"); | |
5813 | goto error; | |
5814 | } | |
5815 | ||
5816 | info("Device at %s registered to minor %d", ov->usb_path, | |
5817 | ov->vdev->minor); | |
5818 | ||
5819 | usb_set_intfdata(intf, ov); | |
5820 | ov_create_sysfs(ov->vdev); | |
5821 | return 0; | |
5822 | ||
5823 | error: | |
5824 | if (ov->vdev) { | |
5825 | if (-1 == ov->vdev->minor) | |
5826 | video_device_release(ov->vdev); | |
5827 | else | |
5828 | video_unregister_device(ov->vdev); | |
5829 | ov->vdev = NULL; | |
5830 | } | |
5831 | ||
5832 | if (ov->cbuf) { | |
4186ecf8 | 5833 | mutex_lock(&ov->cbuf_lock); |
1da177e4 LT |
5834 | kfree(ov->cbuf); |
5835 | ov->cbuf = NULL; | |
4186ecf8 | 5836 | mutex_unlock(&ov->cbuf_lock); |
1da177e4 LT |
5837 | } |
5838 | ||
1bc3c9e1 JJ |
5839 | kfree(ov); |
5840 | ov = NULL; | |
1da177e4 LT |
5841 | |
5842 | error_out: | |
5843 | err("Camera initialization failed"); | |
5844 | return -EIO; | |
5845 | } | |
5846 | ||
5847 | static void | |
5848 | ov51x_disconnect(struct usb_interface *intf) | |
5849 | { | |
5850 | struct usb_ov511 *ov = usb_get_intfdata(intf); | |
5851 | int n; | |
5852 | ||
5853 | PDEBUG(3, ""); | |
5854 | ||
5855 | usb_set_intfdata (intf, NULL); | |
5856 | ||
5857 | if (!ov) | |
5858 | return; | |
5859 | ||
5860 | if (ov->vdev) | |
5861 | video_unregister_device(ov->vdev); | |
5862 | ||
5863 | for (n = 0; n < OV511_NUMFRAMES; n++) | |
5864 | ov->frame[n].grabstate = FRAME_ERROR; | |
5865 | ||
5866 | ov->curframe = -1; | |
5867 | ||
5868 | /* This will cause the process to request another frame */ | |
5869 | for (n = 0; n < OV511_NUMFRAMES; n++) | |
5870 | wake_up_interruptible(&ov->frame[n].wq); | |
5871 | ||
5872 | wake_up_interruptible(&ov->wq); | |
5873 | ||
5874 | ov->streaming = 0; | |
5875 | ov51x_unlink_isoc(ov); | |
5876 | ||
5877 | ov->dev = NULL; | |
5878 | ||
5879 | /* Free the memory */ | |
5880 | if (ov && !ov->user) { | |
4186ecf8 | 5881 | mutex_lock(&ov->cbuf_lock); |
1da177e4 LT |
5882 | kfree(ov->cbuf); |
5883 | ov->cbuf = NULL; | |
4186ecf8 | 5884 | mutex_unlock(&ov->cbuf_lock); |
1da177e4 LT |
5885 | |
5886 | ov51x_dealloc(ov); | |
5887 | kfree(ov); | |
5888 | ov = NULL; | |
5889 | } | |
5890 | ||
5891 | PDEBUG(3, "Disconnect complete"); | |
5892 | } | |
5893 | ||
5894 | static struct usb_driver ov511_driver = { | |
1da177e4 LT |
5895 | .name = "ov511", |
5896 | .id_table = device_table, | |
5897 | .probe = ov51x_probe, | |
5898 | .disconnect = ov51x_disconnect | |
5899 | }; | |
5900 | ||
5901 | /**************************************************************************** | |
5902 | * | |
5903 | * Module routines | |
5904 | * | |
5905 | ***************************************************************************/ | |
5906 | ||
1da177e4 LT |
5907 | static int __init |
5908 | usb_ov511_init(void) | |
5909 | { | |
5910 | int retval; | |
5911 | ||
5912 | retval = usb_register(&ov511_driver); | |
5913 | if (retval) | |
5914 | goto out; | |
5915 | ||
5916 | info(DRIVER_VERSION " : " DRIVER_DESC); | |
5917 | ||
5918 | out: | |
5919 | return retval; | |
5920 | } | |
5921 | ||
5922 | static void __exit | |
5923 | usb_ov511_exit(void) | |
5924 | { | |
5925 | usb_deregister(&ov511_driver); | |
5926 | info("driver deregistered"); | |
5927 | ||
5928 | } | |
5929 | ||
5930 | module_init(usb_ov511_init); | |
5931 | module_exit(usb_ov511_exit); | |
5932 |