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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. | |
18 | * | |
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 | ||
38 | #include <linux/config.h> | |
39 | #include <linux/module.h> | |
40 | #include <linux/init.h> | |
41 | #include <linux/vmalloc.h> | |
42 | #include <linux/slab.h> | |
43 | #include <linux/ctype.h> | |
44 | #include <linux/pagemap.h> | |
45 | #include <asm/semaphore.h> | |
46 | #include <asm/processor.h> | |
47 | #include <linux/mm.h> | |
48 | #include <linux/device.h> | |
49 | ||
50 | #if defined (__i386__) | |
51 | #include <asm/cpufeature.h> | |
52 | #endif | |
53 | ||
54 | #include "ov511.h" | |
55 | ||
56 | /* | |
57 | * Version Information | |
58 | */ | |
59 | #define DRIVER_VERSION "v1.64 for Linux 2.5" | |
60 | #define EMAIL "mark@alpha.dyndns.org" | |
61 | #define DRIVER_AUTHOR "Mark McClelland <mark@alpha.dyndns.org> & Bret Wallach \ | |
62 | & Orion Sky Lawlor <olawlor@acm.org> & Kevin Moore & Charl P. Botha \ | |
63 | <cpbotha@ieee.org> & Claudio Matsuoka <claudio@conectiva.com>" | |
64 | #define DRIVER_DESC "ov511 USB Camera Driver" | |
65 | ||
66 | #define OV511_I2C_RETRIES 3 | |
67 | #define ENABLE_Y_QUANTABLE 1 | |
68 | #define ENABLE_UV_QUANTABLE 1 | |
69 | ||
70 | #define OV511_MAX_UNIT_VIDEO 16 | |
71 | ||
72 | /* Pixel count * bytes per YUV420 pixel (1.5) */ | |
73 | #define MAX_FRAME_SIZE(w, h) ((w) * (h) * 3 / 2) | |
74 | ||
75 | #define MAX_DATA_SIZE(w, h) (MAX_FRAME_SIZE(w, h) + sizeof(struct timeval)) | |
76 | ||
77 | /* Max size * bytes per YUV420 pixel (1.5) + one extra isoc frame for safety */ | |
78 | #define MAX_RAW_DATA_SIZE(w, h) ((w) * (h) * 3 / 2 + 1024) | |
79 | ||
80 | #define FATAL_ERROR(rc) ((rc) < 0 && (rc) != -EPERM) | |
81 | ||
82 | /********************************************************************** | |
83 | * Module Parameters | |
84 | * (See ov511.txt for detailed descriptions of these) | |
85 | **********************************************************************/ | |
86 | ||
87 | /* These variables (and all static globals) default to zero */ | |
88 | static int autobright = 1; | |
89 | static int autogain = 1; | |
90 | static int autoexp = 1; | |
91 | static int debug; | |
92 | static int snapshot; | |
93 | static int cams = 1; | |
94 | static int compress; | |
95 | static int testpat; | |
96 | static int dumppix; | |
97 | static int led = 1; | |
98 | static int dump_bridge; | |
99 | static int dump_sensor; | |
100 | static int printph; | |
101 | static int phy = 0x1f; | |
102 | static int phuv = 0x05; | |
103 | static int pvy = 0x06; | |
104 | static int pvuv = 0x06; | |
105 | static int qhy = 0x14; | |
106 | static int qhuv = 0x03; | |
107 | static int qvy = 0x04; | |
108 | static int qvuv = 0x04; | |
109 | static int lightfreq; | |
110 | static int bandingfilter; | |
111 | static int clockdiv = -1; | |
112 | static int packetsize = -1; | |
113 | static int framedrop = -1; | |
114 | static int fastset; | |
115 | static int force_palette; | |
116 | static int backlight; | |
117 | static int unit_video[OV511_MAX_UNIT_VIDEO]; | |
118 | static int remove_zeros; | |
119 | static int mirror; | |
120 | static int ov518_color; | |
121 | ||
122 | module_param(autobright, int, 0); | |
123 | MODULE_PARM_DESC(autobright, "Sensor automatically changes brightness"); | |
124 | module_param(autogain, int, 0); | |
125 | MODULE_PARM_DESC(autogain, "Sensor automatically changes gain"); | |
126 | module_param(autoexp, int, 0); | |
127 | MODULE_PARM_DESC(autoexp, "Sensor automatically changes exposure"); | |
128 | module_param(debug, int, 0); | |
129 | MODULE_PARM_DESC(debug, | |
130 | "Debug level: 0=none, 1=inits, 2=warning, 3=config, 4=functions, 5=max"); | |
131 | module_param(snapshot, int, 0); | |
132 | MODULE_PARM_DESC(snapshot, "Enable snapshot mode"); | |
133 | module_param(cams, int, 0); | |
134 | MODULE_PARM_DESC(cams, "Number of simultaneous cameras"); | |
135 | module_param(compress, int, 0); | |
136 | MODULE_PARM_DESC(compress, "Turn on compression"); | |
137 | module_param(testpat, int, 0); | |
138 | MODULE_PARM_DESC(testpat, | |
139 | "Replace image with vertical bar testpattern (only partially working)"); | |
140 | module_param(dumppix, int, 0); | |
141 | MODULE_PARM_DESC(dumppix, "Dump raw pixel data"); | |
142 | module_param(led, int, 0); | |
143 | MODULE_PARM_DESC(led, | |
144 | "LED policy (OV511+ or later). 0=off, 1=on (default), 2=auto (on when open)"); | |
145 | module_param(dump_bridge, int, 0); | |
146 | MODULE_PARM_DESC(dump_bridge, "Dump the bridge registers"); | |
147 | module_param(dump_sensor, int, 0); | |
148 | MODULE_PARM_DESC(dump_sensor, "Dump the sensor registers"); | |
149 | module_param(printph, int, 0); | |
150 | MODULE_PARM_DESC(printph, "Print frame start/end headers"); | |
151 | module_param(phy, int, 0); | |
152 | MODULE_PARM_DESC(phy, "Prediction range (horiz. Y)"); | |
153 | module_param(phuv, int, 0); | |
154 | MODULE_PARM_DESC(phuv, "Prediction range (horiz. UV)"); | |
155 | module_param(pvy, int, 0); | |
156 | MODULE_PARM_DESC(pvy, "Prediction range (vert. Y)"); | |
157 | module_param(pvuv, int, 0); | |
158 | MODULE_PARM_DESC(pvuv, "Prediction range (vert. UV)"); | |
159 | module_param(qhy, int, 0); | |
160 | MODULE_PARM_DESC(qhy, "Quantization threshold (horiz. Y)"); | |
161 | module_param(qhuv, int, 0); | |
162 | MODULE_PARM_DESC(qhuv, "Quantization threshold (horiz. UV)"); | |
163 | module_param(qvy, int, 0); | |
164 | MODULE_PARM_DESC(qvy, "Quantization threshold (vert. Y)"); | |
165 | module_param(qvuv, int, 0); | |
166 | MODULE_PARM_DESC(qvuv, "Quantization threshold (vert. UV)"); | |
167 | module_param(lightfreq, int, 0); | |
168 | MODULE_PARM_DESC(lightfreq, | |
169 | "Light frequency. Set to 50 or 60 Hz, or zero for default settings"); | |
170 | module_param(bandingfilter, int, 0); | |
171 | MODULE_PARM_DESC(bandingfilter, | |
172 | "Enable banding filter (to reduce effects of fluorescent lighting)"); | |
173 | module_param(clockdiv, int, 0); | |
174 | MODULE_PARM_DESC(clockdiv, "Force pixel clock divisor to a specific value"); | |
175 | module_param(packetsize, int, 0); | |
176 | MODULE_PARM_DESC(packetsize, "Force a specific isoc packet size"); | |
177 | module_param(framedrop, int, 0); | |
178 | MODULE_PARM_DESC(framedrop, "Force a specific frame drop register setting"); | |
179 | module_param(fastset, int, 0); | |
180 | MODULE_PARM_DESC(fastset, "Allows picture settings to take effect immediately"); | |
181 | module_param(force_palette, int, 0); | |
182 | MODULE_PARM_DESC(force_palette, "Force the palette to a specific value"); | |
183 | module_param(backlight, int, 0); | |
184 | MODULE_PARM_DESC(backlight, "For objects that are lit from behind"); | |
185 | static int num_uv; | |
186 | module_param_array(unit_video, int, &num_uv, 0); | |
187 | MODULE_PARM_DESC(unit_video, | |
188 | "Force use of specific minor number(s). 0 is not allowed."); | |
189 | module_param(remove_zeros, int, 0); | |
190 | MODULE_PARM_DESC(remove_zeros, | |
191 | "Remove zero-padding from uncompressed incoming data"); | |
192 | module_param(mirror, int, 0); | |
193 | MODULE_PARM_DESC(mirror, "Reverse image horizontally"); | |
194 | module_param(ov518_color, int, 0); | |
195 | MODULE_PARM_DESC(ov518_color, "Enable OV518 color (experimental)"); | |
196 | ||
197 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
198 | MODULE_DESCRIPTION(DRIVER_DESC); | |
199 | MODULE_LICENSE("GPL"); | |
200 | ||
201 | /********************************************************************** | |
202 | * Miscellaneous Globals | |
203 | **********************************************************************/ | |
204 | ||
205 | static struct usb_driver ov511_driver; | |
206 | ||
207 | static struct ov51x_decomp_ops *ov511_decomp_ops; | |
208 | static struct ov51x_decomp_ops *ov511_mmx_decomp_ops; | |
209 | static struct ov51x_decomp_ops *ov518_decomp_ops; | |
210 | static struct ov51x_decomp_ops *ov518_mmx_decomp_ops; | |
211 | ||
212 | /* Number of times to retry a failed I2C transaction. Increase this if you | |
213 | * are getting "Failed to read sensor ID..." */ | |
214 | static int i2c_detect_tries = 5; | |
215 | ||
216 | /* MMX support is present in kernel and CPU. Checked upon decomp module load. */ | |
217 | #if defined(__i386__) || defined(__x86_64__) | |
218 | #define ov51x_mmx_available (cpu_has_mmx) | |
219 | #else | |
220 | #define ov51x_mmx_available (0) | |
221 | #endif | |
222 | ||
223 | static struct usb_device_id device_table [] = { | |
224 | { USB_DEVICE(VEND_OMNIVISION, PROD_OV511) }, | |
225 | { USB_DEVICE(VEND_OMNIVISION, PROD_OV511PLUS) }, | |
226 | { USB_DEVICE(VEND_OMNIVISION, PROD_OV518) }, | |
227 | { USB_DEVICE(VEND_OMNIVISION, PROD_OV518PLUS) }, | |
228 | { USB_DEVICE(VEND_MATTEL, PROD_ME2CAM) }, | |
229 | { } /* Terminating entry */ | |
230 | }; | |
231 | ||
232 | MODULE_DEVICE_TABLE (usb, device_table); | |
233 | ||
234 | static unsigned char yQuanTable511[] = OV511_YQUANTABLE; | |
235 | static unsigned char uvQuanTable511[] = OV511_UVQUANTABLE; | |
236 | static unsigned char yQuanTable518[] = OV518_YQUANTABLE; | |
237 | static unsigned char uvQuanTable518[] = OV518_UVQUANTABLE; | |
238 | ||
239 | /********************************************************************** | |
240 | * Symbolic Names | |
241 | **********************************************************************/ | |
242 | ||
243 | /* Known OV511-based cameras */ | |
244 | static struct symbolic_list camlist[] = { | |
245 | { 0, "Generic Camera (no ID)" }, | |
246 | { 1, "Mustek WCam 3X" }, | |
247 | { 3, "D-Link DSB-C300" }, | |
248 | { 4, "Generic OV511/OV7610" }, | |
249 | { 5, "Puretek PT-6007" }, | |
250 | { 6, "Lifeview USB Life TV (NTSC)" }, | |
251 | { 21, "Creative Labs WebCam 3" }, | |
252 | { 22, "Lifeview USB Life TV (PAL D/K+B/G)" }, | |
253 | { 36, "Koala-Cam" }, | |
254 | { 38, "Lifeview USB Life TV (PAL)" }, | |
255 | { 41, "Samsung Anycam MPC-M10" }, | |
256 | { 43, "Mtekvision Zeca MV402" }, | |
257 | { 46, "Suma eON" }, | |
258 | { 70, "Lifeview USB Life TV (PAL/SECAM)" }, | |
259 | { 100, "Lifeview RoboCam" }, | |
260 | { 102, "AverMedia InterCam Elite" }, | |
261 | { 112, "MediaForte MV300" }, /* or OV7110 evaluation kit */ | |
262 | { 134, "Ezonics EZCam II" }, | |
263 | { 192, "Webeye 2000B" }, | |
264 | { 253, "Alpha Vision Tech. AlphaCam SE" }, | |
265 | { -1, NULL } | |
266 | }; | |
267 | ||
268 | /* Video4Linux1 Palettes */ | |
269 | static struct symbolic_list v4l1_plist[] = { | |
270 | { VIDEO_PALETTE_GREY, "GREY" }, | |
271 | { VIDEO_PALETTE_HI240, "HI240" }, | |
272 | { VIDEO_PALETTE_RGB565, "RGB565" }, | |
273 | { VIDEO_PALETTE_RGB24, "RGB24" }, | |
274 | { VIDEO_PALETTE_RGB32, "RGB32" }, | |
275 | { VIDEO_PALETTE_RGB555, "RGB555" }, | |
276 | { VIDEO_PALETTE_YUV422, "YUV422" }, | |
277 | { VIDEO_PALETTE_YUYV, "YUYV" }, | |
278 | { VIDEO_PALETTE_UYVY, "UYVY" }, | |
279 | { VIDEO_PALETTE_YUV420, "YUV420" }, | |
280 | { VIDEO_PALETTE_YUV411, "YUV411" }, | |
281 | { VIDEO_PALETTE_RAW, "RAW" }, | |
282 | { VIDEO_PALETTE_YUV422P,"YUV422P" }, | |
283 | { VIDEO_PALETTE_YUV411P,"YUV411P" }, | |
284 | { VIDEO_PALETTE_YUV420P,"YUV420P" }, | |
285 | { VIDEO_PALETTE_YUV410P,"YUV410P" }, | |
286 | { -1, NULL } | |
287 | }; | |
288 | ||
289 | static struct symbolic_list brglist[] = { | |
290 | { BRG_OV511, "OV511" }, | |
291 | { BRG_OV511PLUS, "OV511+" }, | |
292 | { BRG_OV518, "OV518" }, | |
293 | { BRG_OV518PLUS, "OV518+" }, | |
294 | { -1, NULL } | |
295 | }; | |
296 | ||
297 | static struct symbolic_list senlist[] = { | |
298 | { SEN_OV76BE, "OV76BE" }, | |
299 | { SEN_OV7610, "OV7610" }, | |
300 | { SEN_OV7620, "OV7620" }, | |
301 | { SEN_OV7620AE, "OV7620AE" }, | |
302 | { SEN_OV6620, "OV6620" }, | |
303 | { SEN_OV6630, "OV6630" }, | |
304 | { SEN_OV6630AE, "OV6630AE" }, | |
305 | { SEN_OV6630AF, "OV6630AF" }, | |
306 | { SEN_OV8600, "OV8600" }, | |
307 | { SEN_KS0127, "KS0127" }, | |
308 | { SEN_KS0127B, "KS0127B" }, | |
309 | { SEN_SAA7111A, "SAA7111A" }, | |
310 | { -1, NULL } | |
311 | }; | |
312 | ||
313 | /* URB error codes: */ | |
314 | static struct symbolic_list urb_errlist[] = { | |
315 | { -ENOSR, "Buffer error (overrun)" }, | |
316 | { -EPIPE, "Stalled (device not responding)" }, | |
317 | { -EOVERFLOW, "Babble (bad cable?)" }, | |
318 | { -EPROTO, "Bit-stuff error (bad cable?)" }, | |
319 | { -EILSEQ, "CRC/Timeout" }, | |
320 | { -ETIMEDOUT, "NAK (device does not respond)" }, | |
321 | { -1, NULL } | |
322 | }; | |
323 | ||
324 | /********************************************************************** | |
325 | * Memory management | |
326 | **********************************************************************/ | |
327 | static void * | |
328 | rvmalloc(unsigned long size) | |
329 | { | |
330 | void *mem; | |
331 | unsigned long adr; | |
332 | ||
333 | size = PAGE_ALIGN(size); | |
334 | mem = vmalloc_32(size); | |
335 | if (!mem) | |
336 | return NULL; | |
337 | ||
338 | memset(mem, 0, size); /* Clear the ram out, no junk to the user */ | |
339 | adr = (unsigned long) mem; | |
340 | while (size > 0) { | |
341 | SetPageReserved(vmalloc_to_page((void *)adr)); | |
342 | adr += PAGE_SIZE; | |
343 | size -= PAGE_SIZE; | |
344 | } | |
345 | ||
346 | return mem; | |
347 | } | |
348 | ||
349 | static void | |
350 | rvfree(void *mem, unsigned long size) | |
351 | { | |
352 | unsigned long adr; | |
353 | ||
354 | if (!mem) | |
355 | return; | |
356 | ||
357 | adr = (unsigned long) mem; | |
358 | while ((long) size > 0) { | |
359 | ClearPageReserved(vmalloc_to_page((void *)adr)); | |
360 | adr += PAGE_SIZE; | |
361 | size -= PAGE_SIZE; | |
362 | } | |
363 | vfree(mem); | |
364 | } | |
365 | ||
366 | /********************************************************************** | |
367 | * | |
368 | * Register I/O | |
369 | * | |
370 | **********************************************************************/ | |
371 | ||
372 | /* Write an OV51x register */ | |
373 | static int | |
374 | reg_w(struct usb_ov511 *ov, unsigned char reg, unsigned char value) | |
375 | { | |
376 | int rc; | |
377 | ||
378 | PDEBUG(5, "0x%02X:0x%02X", reg, value); | |
379 | ||
380 | down(&ov->cbuf_lock); | |
381 | ov->cbuf[0] = value; | |
382 | rc = usb_control_msg(ov->dev, | |
383 | usb_sndctrlpipe(ov->dev, 0), | |
384 | (ov->bclass == BCL_OV518)?1:2 /* REG_IO */, | |
385 | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
386 | 0, (__u16)reg, &ov->cbuf[0], 1, 1000); | |
387 | up(&ov->cbuf_lock); | |
388 | ||
389 | if (rc < 0) | |
390 | err("reg write: error %d: %s", rc, symbolic(urb_errlist, rc)); | |
391 | ||
392 | return rc; | |
393 | } | |
394 | ||
395 | /* Read from an OV51x register */ | |
396 | /* returns: negative is error, pos or zero is data */ | |
397 | static int | |
398 | reg_r(struct usb_ov511 *ov, unsigned char reg) | |
399 | { | |
400 | int rc; | |
401 | ||
402 | down(&ov->cbuf_lock); | |
403 | rc = usb_control_msg(ov->dev, | |
404 | usb_rcvctrlpipe(ov->dev, 0), | |
405 | (ov->bclass == BCL_OV518)?1:3 /* REG_IO */, | |
406 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
407 | 0, (__u16)reg, &ov->cbuf[0], 1, 1000); | |
408 | ||
409 | if (rc < 0) { | |
410 | err("reg read: error %d: %s", rc, symbolic(urb_errlist, rc)); | |
411 | } else { | |
412 | rc = ov->cbuf[0]; | |
413 | PDEBUG(5, "0x%02X:0x%02X", reg, ov->cbuf[0]); | |
414 | } | |
415 | ||
416 | up(&ov->cbuf_lock); | |
417 | ||
418 | return rc; | |
419 | } | |
420 | ||
421 | /* | |
422 | * Writes bits at positions specified by mask to an OV51x reg. Bits that are in | |
423 | * the same position as 1's in "mask" are cleared and set to "value". Bits | |
424 | * that are in the same position as 0's in "mask" are preserved, regardless | |
425 | * of their respective state in "value". | |
426 | */ | |
427 | static int | |
428 | reg_w_mask(struct usb_ov511 *ov, | |
429 | unsigned char reg, | |
430 | unsigned char value, | |
431 | unsigned char mask) | |
432 | { | |
433 | int ret; | |
434 | unsigned char oldval, newval; | |
435 | ||
436 | ret = reg_r(ov, reg); | |
437 | if (ret < 0) | |
438 | return ret; | |
439 | ||
440 | oldval = (unsigned char) ret; | |
441 | oldval &= (~mask); /* Clear the masked bits */ | |
442 | value &= mask; /* Enforce mask on value */ | |
443 | newval = oldval | value; /* Set the desired bits */ | |
444 | ||
445 | return (reg_w(ov, reg, newval)); | |
446 | } | |
447 | ||
448 | /* | |
449 | * Writes multiple (n) byte value to a single register. Only valid with certain | |
450 | * registers (0x30 and 0xc4 - 0xce). | |
451 | */ | |
452 | static int | |
453 | ov518_reg_w32(struct usb_ov511 *ov, unsigned char reg, u32 val, int n) | |
454 | { | |
455 | int rc; | |
456 | ||
457 | PDEBUG(5, "0x%02X:%7d, n=%d", reg, val, n); | |
458 | ||
459 | down(&ov->cbuf_lock); | |
460 | ||
461 | *((__le32 *)ov->cbuf) = __cpu_to_le32(val); | |
462 | ||
463 | rc = usb_control_msg(ov->dev, | |
464 | usb_sndctrlpipe(ov->dev, 0), | |
465 | 1 /* REG_IO */, | |
466 | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
467 | 0, (__u16)reg, ov->cbuf, n, 1000); | |
468 | up(&ov->cbuf_lock); | |
469 | ||
470 | if (rc < 0) | |
471 | err("reg write multiple: error %d: %s", rc, | |
472 | symbolic(urb_errlist, rc)); | |
473 | ||
474 | return rc; | |
475 | } | |
476 | ||
477 | static int | |
478 | ov511_upload_quan_tables(struct usb_ov511 *ov) | |
479 | { | |
480 | unsigned char *pYTable = yQuanTable511; | |
481 | unsigned char *pUVTable = uvQuanTable511; | |
482 | unsigned char val0, val1; | |
483 | int i, rc, reg = R511_COMP_LUT_BEGIN; | |
484 | ||
485 | PDEBUG(4, "Uploading quantization tables"); | |
486 | ||
487 | for (i = 0; i < OV511_QUANTABLESIZE / 2; i++) { | |
488 | if (ENABLE_Y_QUANTABLE) { | |
489 | val0 = *pYTable++; | |
490 | val1 = *pYTable++; | |
491 | val0 &= 0x0f; | |
492 | val1 &= 0x0f; | |
493 | val0 |= val1 << 4; | |
494 | rc = reg_w(ov, reg, val0); | |
495 | if (rc < 0) | |
496 | return rc; | |
497 | } | |
498 | ||
499 | if (ENABLE_UV_QUANTABLE) { | |
500 | val0 = *pUVTable++; | |
501 | val1 = *pUVTable++; | |
502 | val0 &= 0x0f; | |
503 | val1 &= 0x0f; | |
504 | val0 |= val1 << 4; | |
505 | rc = reg_w(ov, reg + OV511_QUANTABLESIZE/2, val0); | |
506 | if (rc < 0) | |
507 | return rc; | |
508 | } | |
509 | ||
510 | reg++; | |
511 | } | |
512 | ||
513 | return 0; | |
514 | } | |
515 | ||
516 | /* OV518 quantization tables are 8x4 (instead of 8x8) */ | |
517 | static int | |
518 | ov518_upload_quan_tables(struct usb_ov511 *ov) | |
519 | { | |
520 | unsigned char *pYTable = yQuanTable518; | |
521 | unsigned char *pUVTable = uvQuanTable518; | |
522 | unsigned char val0, val1; | |
523 | int i, rc, reg = R511_COMP_LUT_BEGIN; | |
524 | ||
525 | PDEBUG(4, "Uploading quantization tables"); | |
526 | ||
527 | for (i = 0; i < OV518_QUANTABLESIZE / 2; i++) { | |
528 | if (ENABLE_Y_QUANTABLE) { | |
529 | val0 = *pYTable++; | |
530 | val1 = *pYTable++; | |
531 | val0 &= 0x0f; | |
532 | val1 &= 0x0f; | |
533 | val0 |= val1 << 4; | |
534 | rc = reg_w(ov, reg, val0); | |
535 | if (rc < 0) | |
536 | return rc; | |
537 | } | |
538 | ||
539 | if (ENABLE_UV_QUANTABLE) { | |
540 | val0 = *pUVTable++; | |
541 | val1 = *pUVTable++; | |
542 | val0 &= 0x0f; | |
543 | val1 &= 0x0f; | |
544 | val0 |= val1 << 4; | |
545 | rc = reg_w(ov, reg + OV518_QUANTABLESIZE/2, val0); | |
546 | if (rc < 0) | |
547 | return rc; | |
548 | } | |
549 | ||
550 | reg++; | |
551 | } | |
552 | ||
553 | return 0; | |
554 | } | |
555 | ||
556 | static int | |
557 | ov51x_reset(struct usb_ov511 *ov, unsigned char reset_type) | |
558 | { | |
559 | int rc; | |
560 | ||
561 | /* Setting bit 0 not allowed on 518/518Plus */ | |
562 | if (ov->bclass == BCL_OV518) | |
563 | reset_type &= 0xfe; | |
564 | ||
565 | PDEBUG(4, "Reset: type=0x%02X", reset_type); | |
566 | ||
567 | rc = reg_w(ov, R51x_SYS_RESET, reset_type); | |
568 | rc = reg_w(ov, R51x_SYS_RESET, 0); | |
569 | ||
570 | if (rc < 0) | |
571 | err("reset: command failed"); | |
572 | ||
573 | return rc; | |
574 | } | |
575 | ||
576 | /********************************************************************** | |
577 | * | |
578 | * Low-level I2C I/O functions | |
579 | * | |
580 | **********************************************************************/ | |
581 | ||
582 | /* NOTE: Do not call this function directly! | |
583 | * The OV518 I2C I/O procedure is different, hence, this function. | |
584 | * This is normally only called from i2c_w(). Note that this function | |
585 | * always succeeds regardless of whether the sensor is present and working. | |
586 | */ | |
587 | static int | |
588 | ov518_i2c_write_internal(struct usb_ov511 *ov, | |
589 | unsigned char reg, | |
590 | unsigned char value) | |
591 | { | |
592 | int rc; | |
593 | ||
594 | PDEBUG(5, "0x%02X:0x%02X", reg, value); | |
595 | ||
596 | /* Select camera register */ | |
597 | rc = reg_w(ov, R51x_I2C_SADDR_3, reg); | |
598 | if (rc < 0) | |
599 | return rc; | |
600 | ||
601 | /* Write "value" to I2C data port of OV511 */ | |
602 | rc = reg_w(ov, R51x_I2C_DATA, value); | |
603 | if (rc < 0) | |
604 | return rc; | |
605 | ||
606 | /* Initiate 3-byte write cycle */ | |
607 | rc = reg_w(ov, R518_I2C_CTL, 0x01); | |
608 | if (rc < 0) | |
609 | return rc; | |
610 | ||
611 | return 0; | |
612 | } | |
613 | ||
614 | /* NOTE: Do not call this function directly! */ | |
615 | static int | |
616 | ov511_i2c_write_internal(struct usb_ov511 *ov, | |
617 | unsigned char reg, | |
618 | unsigned char value) | |
619 | { | |
620 | int rc, retries; | |
621 | ||
622 | PDEBUG(5, "0x%02X:0x%02X", reg, value); | |
623 | ||
624 | /* Three byte write cycle */ | |
625 | for (retries = OV511_I2C_RETRIES; ; ) { | |
626 | /* Select camera register */ | |
627 | rc = reg_w(ov, R51x_I2C_SADDR_3, reg); | |
628 | if (rc < 0) | |
629 | break; | |
630 | ||
631 | /* Write "value" to I2C data port of OV511 */ | |
632 | rc = reg_w(ov, R51x_I2C_DATA, value); | |
633 | if (rc < 0) | |
634 | break; | |
635 | ||
636 | /* Initiate 3-byte write cycle */ | |
637 | rc = reg_w(ov, R511_I2C_CTL, 0x01); | |
638 | if (rc < 0) | |
639 | break; | |
640 | ||
641 | /* Retry until idle */ | |
642 | do | |
643 | rc = reg_r(ov, R511_I2C_CTL); | |
644 | while (rc > 0 && ((rc&1) == 0)); | |
645 | if (rc < 0) | |
646 | break; | |
647 | ||
648 | /* Ack? */ | |
649 | if ((rc&2) == 0) { | |
650 | rc = 0; | |
651 | break; | |
652 | } | |
653 | #if 0 | |
654 | /* I2C abort */ | |
655 | reg_w(ov, R511_I2C_CTL, 0x10); | |
656 | #endif | |
657 | if (--retries < 0) { | |
658 | err("i2c write retries exhausted"); | |
659 | rc = -1; | |
660 | break; | |
661 | } | |
662 | } | |
663 | ||
664 | return rc; | |
665 | } | |
666 | ||
667 | /* NOTE: Do not call this function directly! | |
668 | * The OV518 I2C I/O procedure is different, hence, this function. | |
669 | * This is normally only called from i2c_r(). Note that this function | |
670 | * always succeeds regardless of whether the sensor is present and working. | |
671 | */ | |
672 | static int | |
673 | ov518_i2c_read_internal(struct usb_ov511 *ov, unsigned char reg) | |
674 | { | |
675 | int rc, value; | |
676 | ||
677 | /* Select camera register */ | |
678 | rc = reg_w(ov, R51x_I2C_SADDR_2, reg); | |
679 | if (rc < 0) | |
680 | return rc; | |
681 | ||
682 | /* Initiate 2-byte write cycle */ | |
683 | rc = reg_w(ov, R518_I2C_CTL, 0x03); | |
684 | if (rc < 0) | |
685 | return rc; | |
686 | ||
687 | /* Initiate 2-byte read cycle */ | |
688 | rc = reg_w(ov, R518_I2C_CTL, 0x05); | |
689 | if (rc < 0) | |
690 | return rc; | |
691 | ||
692 | value = reg_r(ov, R51x_I2C_DATA); | |
693 | ||
694 | PDEBUG(5, "0x%02X:0x%02X", reg, value); | |
695 | ||
696 | return value; | |
697 | } | |
698 | ||
699 | /* NOTE: Do not call this function directly! | |
700 | * returns: negative is error, pos or zero is data */ | |
701 | static int | |
702 | ov511_i2c_read_internal(struct usb_ov511 *ov, unsigned char reg) | |
703 | { | |
704 | int rc, value, retries; | |
705 | ||
706 | /* Two byte write cycle */ | |
707 | for (retries = OV511_I2C_RETRIES; ; ) { | |
708 | /* Select camera register */ | |
709 | rc = reg_w(ov, R51x_I2C_SADDR_2, reg); | |
710 | if (rc < 0) | |
711 | return rc; | |
712 | ||
713 | /* Initiate 2-byte write cycle */ | |
714 | rc = reg_w(ov, R511_I2C_CTL, 0x03); | |
715 | if (rc < 0) | |
716 | return rc; | |
717 | ||
718 | /* Retry until idle */ | |
719 | do | |
720 | rc = reg_r(ov, R511_I2C_CTL); | |
721 | while (rc > 0 && ((rc&1) == 0)); | |
722 | if (rc < 0) | |
723 | return rc; | |
724 | ||
725 | if ((rc&2) == 0) /* Ack? */ | |
726 | break; | |
727 | ||
728 | /* I2C abort */ | |
729 | reg_w(ov, R511_I2C_CTL, 0x10); | |
730 | ||
731 | if (--retries < 0) { | |
732 | err("i2c write retries exhausted"); | |
733 | return -1; | |
734 | } | |
735 | } | |
736 | ||
737 | /* Two byte read cycle */ | |
738 | for (retries = OV511_I2C_RETRIES; ; ) { | |
739 | /* Initiate 2-byte read cycle */ | |
740 | rc = reg_w(ov, R511_I2C_CTL, 0x05); | |
741 | if (rc < 0) | |
742 | return rc; | |
743 | ||
744 | /* Retry until idle */ | |
745 | do | |
746 | rc = reg_r(ov, R511_I2C_CTL); | |
747 | while (rc > 0 && ((rc&1) == 0)); | |
748 | if (rc < 0) | |
749 | return rc; | |
750 | ||
751 | if ((rc&2) == 0) /* Ack? */ | |
752 | break; | |
753 | ||
754 | /* I2C abort */ | |
755 | rc = reg_w(ov, R511_I2C_CTL, 0x10); | |
756 | if (rc < 0) | |
757 | return rc; | |
758 | ||
759 | if (--retries < 0) { | |
760 | err("i2c read retries exhausted"); | |
761 | return -1; | |
762 | } | |
763 | } | |
764 | ||
765 | value = reg_r(ov, R51x_I2C_DATA); | |
766 | ||
767 | PDEBUG(5, "0x%02X:0x%02X", reg, value); | |
768 | ||
769 | /* This is needed to make i2c_w() work */ | |
770 | rc = reg_w(ov, R511_I2C_CTL, 0x05); | |
771 | if (rc < 0) | |
772 | return rc; | |
773 | ||
774 | return value; | |
775 | } | |
776 | ||
777 | /* returns: negative is error, pos or zero is data */ | |
778 | static int | |
779 | i2c_r(struct usb_ov511 *ov, unsigned char reg) | |
780 | { | |
781 | int rc; | |
782 | ||
783 | down(&ov->i2c_lock); | |
784 | ||
785 | if (ov->bclass == BCL_OV518) | |
786 | rc = ov518_i2c_read_internal(ov, reg); | |
787 | else | |
788 | rc = ov511_i2c_read_internal(ov, reg); | |
789 | ||
790 | up(&ov->i2c_lock); | |
791 | ||
792 | return rc; | |
793 | } | |
794 | ||
795 | static int | |
796 | i2c_w(struct usb_ov511 *ov, unsigned char reg, unsigned char value) | |
797 | { | |
798 | int rc; | |
799 | ||
800 | down(&ov->i2c_lock); | |
801 | ||
802 | if (ov->bclass == BCL_OV518) | |
803 | rc = ov518_i2c_write_internal(ov, reg, value); | |
804 | else | |
805 | rc = ov511_i2c_write_internal(ov, reg, value); | |
806 | ||
807 | up(&ov->i2c_lock); | |
808 | ||
809 | return rc; | |
810 | } | |
811 | ||
812 | /* Do not call this function directly! */ | |
813 | static int | |
814 | ov51x_i2c_write_mask_internal(struct usb_ov511 *ov, | |
815 | unsigned char reg, | |
816 | unsigned char value, | |
817 | unsigned char mask) | |
818 | { | |
819 | int rc; | |
820 | unsigned char oldval, newval; | |
821 | ||
822 | if (mask == 0xff) { | |
823 | newval = value; | |
824 | } else { | |
825 | if (ov->bclass == BCL_OV518) | |
826 | rc = ov518_i2c_read_internal(ov, reg); | |
827 | else | |
828 | rc = ov511_i2c_read_internal(ov, reg); | |
829 | if (rc < 0) | |
830 | return rc; | |
831 | ||
832 | oldval = (unsigned char) rc; | |
833 | oldval &= (~mask); /* Clear the masked bits */ | |
834 | value &= mask; /* Enforce mask on value */ | |
835 | newval = oldval | value; /* Set the desired bits */ | |
836 | } | |
837 | ||
838 | if (ov->bclass == BCL_OV518) | |
839 | return (ov518_i2c_write_internal(ov, reg, newval)); | |
840 | else | |
841 | return (ov511_i2c_write_internal(ov, reg, newval)); | |
842 | } | |
843 | ||
844 | /* Writes bits at positions specified by mask to an I2C reg. Bits that are in | |
845 | * the same position as 1's in "mask" are cleared and set to "value". Bits | |
846 | * that are in the same position as 0's in "mask" are preserved, regardless | |
847 | * of their respective state in "value". | |
848 | */ | |
849 | static int | |
850 | i2c_w_mask(struct usb_ov511 *ov, | |
851 | unsigned char reg, | |
852 | unsigned char value, | |
853 | unsigned char mask) | |
854 | { | |
855 | int rc; | |
856 | ||
857 | down(&ov->i2c_lock); | |
858 | rc = ov51x_i2c_write_mask_internal(ov, reg, value, mask); | |
859 | up(&ov->i2c_lock); | |
860 | ||
861 | return rc; | |
862 | } | |
863 | ||
864 | /* Set the read and write slave IDs. The "slave" argument is the write slave, | |
865 | * and the read slave will be set to (slave + 1). ov->i2c_lock should be held | |
866 | * when calling this. This should not be called from outside the i2c I/O | |
867 | * functions. | |
868 | */ | |
869 | static int | |
870 | i2c_set_slave_internal(struct usb_ov511 *ov, unsigned char slave) | |
871 | { | |
872 | int rc; | |
873 | ||
874 | rc = reg_w(ov, R51x_I2C_W_SID, slave); | |
875 | if (rc < 0) | |
876 | return rc; | |
877 | ||
878 | rc = reg_w(ov, R51x_I2C_R_SID, slave + 1); | |
879 | if (rc < 0) | |
880 | return rc; | |
881 | ||
882 | return 0; | |
883 | } | |
884 | ||
885 | /* Write to a specific I2C slave ID and register, using the specified mask */ | |
886 | static int | |
887 | i2c_w_slave(struct usb_ov511 *ov, | |
888 | unsigned char slave, | |
889 | unsigned char reg, | |
890 | unsigned char value, | |
891 | unsigned char mask) | |
892 | { | |
893 | int rc = 0; | |
894 | ||
895 | down(&ov->i2c_lock); | |
896 | ||
897 | /* Set new slave IDs */ | |
898 | rc = i2c_set_slave_internal(ov, slave); | |
899 | if (rc < 0) | |
900 | goto out; | |
901 | ||
902 | rc = ov51x_i2c_write_mask_internal(ov, reg, value, mask); | |
903 | ||
904 | out: | |
905 | /* Restore primary IDs */ | |
906 | if (i2c_set_slave_internal(ov, ov->primary_i2c_slave) < 0) | |
907 | err("Couldn't restore primary I2C slave"); | |
908 | ||
909 | up(&ov->i2c_lock); | |
910 | return rc; | |
911 | } | |
912 | ||
913 | /* Read from a specific I2C slave ID and register */ | |
914 | static int | |
915 | i2c_r_slave(struct usb_ov511 *ov, | |
916 | unsigned char slave, | |
917 | unsigned char reg) | |
918 | { | |
919 | int rc; | |
920 | ||
921 | down(&ov->i2c_lock); | |
922 | ||
923 | /* Set new slave IDs */ | |
924 | rc = i2c_set_slave_internal(ov, slave); | |
925 | if (rc < 0) | |
926 | goto out; | |
927 | ||
928 | if (ov->bclass == BCL_OV518) | |
929 | rc = ov518_i2c_read_internal(ov, reg); | |
930 | else | |
931 | rc = ov511_i2c_read_internal(ov, reg); | |
932 | ||
933 | out: | |
934 | /* Restore primary IDs */ | |
935 | if (i2c_set_slave_internal(ov, ov->primary_i2c_slave) < 0) | |
936 | err("Couldn't restore primary I2C slave"); | |
937 | ||
938 | up(&ov->i2c_lock); | |
939 | return rc; | |
940 | } | |
941 | ||
942 | /* Sets I2C read and write slave IDs. Returns <0 for error */ | |
943 | static int | |
944 | ov51x_set_slave_ids(struct usb_ov511 *ov, unsigned char sid) | |
945 | { | |
946 | int rc; | |
947 | ||
948 | down(&ov->i2c_lock); | |
949 | ||
950 | rc = i2c_set_slave_internal(ov, sid); | |
951 | if (rc < 0) | |
952 | goto out; | |
953 | ||
954 | // FIXME: Is this actually necessary? | |
955 | rc = ov51x_reset(ov, OV511_RESET_NOREGS); | |
956 | out: | |
957 | up(&ov->i2c_lock); | |
958 | return rc; | |
959 | } | |
960 | ||
961 | static int | |
962 | write_regvals(struct usb_ov511 *ov, struct ov511_regvals * pRegvals) | |
963 | { | |
964 | int rc; | |
965 | ||
966 | while (pRegvals->bus != OV511_DONE_BUS) { | |
967 | if (pRegvals->bus == OV511_REG_BUS) { | |
968 | if ((rc = reg_w(ov, pRegvals->reg, pRegvals->val)) < 0) | |
969 | return rc; | |
970 | } else if (pRegvals->bus == OV511_I2C_BUS) { | |
971 | if ((rc = i2c_w(ov, pRegvals->reg, pRegvals->val)) < 0) | |
972 | return rc; | |
973 | } else { | |
974 | err("Bad regval array"); | |
975 | return -1; | |
976 | } | |
977 | pRegvals++; | |
978 | } | |
979 | return 0; | |
980 | } | |
981 | ||
982 | #ifdef OV511_DEBUG | |
983 | static void | |
984 | dump_i2c_range(struct usb_ov511 *ov, int reg1, int regn) | |
985 | { | |
986 | int i, rc; | |
987 | ||
988 | for (i = reg1; i <= regn; i++) { | |
989 | rc = i2c_r(ov, i); | |
990 | info("Sensor[0x%02X] = 0x%02X", i, rc); | |
991 | } | |
992 | } | |
993 | ||
994 | static void | |
995 | dump_i2c_regs(struct usb_ov511 *ov) | |
996 | { | |
997 | info("I2C REGS"); | |
998 | dump_i2c_range(ov, 0x00, 0x7C); | |
999 | } | |
1000 | ||
1001 | static void | |
1002 | dump_reg_range(struct usb_ov511 *ov, int reg1, int regn) | |
1003 | { | |
1004 | int i, rc; | |
1005 | ||
1006 | for (i = reg1; i <= regn; i++) { | |
1007 | rc = reg_r(ov, i); | |
1008 | info("OV511[0x%02X] = 0x%02X", i, rc); | |
1009 | } | |
1010 | } | |
1011 | ||
1012 | static void | |
1013 | ov511_dump_regs(struct usb_ov511 *ov) | |
1014 | { | |
1015 | info("CAMERA INTERFACE REGS"); | |
1016 | dump_reg_range(ov, 0x10, 0x1f); | |
1017 | info("DRAM INTERFACE REGS"); | |
1018 | dump_reg_range(ov, 0x20, 0x23); | |
1019 | info("ISO FIFO REGS"); | |
1020 | dump_reg_range(ov, 0x30, 0x31); | |
1021 | info("PIO REGS"); | |
1022 | dump_reg_range(ov, 0x38, 0x39); | |
1023 | dump_reg_range(ov, 0x3e, 0x3e); | |
1024 | info("I2C REGS"); | |
1025 | dump_reg_range(ov, 0x40, 0x49); | |
1026 | info("SYSTEM CONTROL REGS"); | |
1027 | dump_reg_range(ov, 0x50, 0x55); | |
1028 | dump_reg_range(ov, 0x5e, 0x5f); | |
1029 | info("OmniCE REGS"); | |
1030 | dump_reg_range(ov, 0x70, 0x79); | |
1031 | /* NOTE: Quantization tables are not readable. You will get the value | |
1032 | * in reg. 0x79 for every table register */ | |
1033 | dump_reg_range(ov, 0x80, 0x9f); | |
1034 | dump_reg_range(ov, 0xa0, 0xbf); | |
1035 | ||
1036 | } | |
1037 | ||
1038 | static void | |
1039 | ov518_dump_regs(struct usb_ov511 *ov) | |
1040 | { | |
1041 | info("VIDEO MODE REGS"); | |
1042 | dump_reg_range(ov, 0x20, 0x2f); | |
1043 | info("DATA PUMP AND SNAPSHOT REGS"); | |
1044 | dump_reg_range(ov, 0x30, 0x3f); | |
1045 | info("I2C REGS"); | |
1046 | dump_reg_range(ov, 0x40, 0x4f); | |
1047 | info("SYSTEM CONTROL AND VENDOR REGS"); | |
1048 | dump_reg_range(ov, 0x50, 0x5f); | |
1049 | info("60 - 6F"); | |
1050 | dump_reg_range(ov, 0x60, 0x6f); | |
1051 | info("70 - 7F"); | |
1052 | dump_reg_range(ov, 0x70, 0x7f); | |
1053 | info("Y QUANTIZATION TABLE"); | |
1054 | dump_reg_range(ov, 0x80, 0x8f); | |
1055 | info("UV QUANTIZATION TABLE"); | |
1056 | dump_reg_range(ov, 0x90, 0x9f); | |
1057 | info("A0 - BF"); | |
1058 | dump_reg_range(ov, 0xa0, 0xbf); | |
1059 | info("CBR"); | |
1060 | dump_reg_range(ov, 0xc0, 0xcf); | |
1061 | } | |
1062 | #endif | |
1063 | ||
1064 | /*****************************************************************************/ | |
1065 | ||
1066 | /* Temporarily stops OV511 from functioning. Must do this before changing | |
1067 | * registers while the camera is streaming */ | |
1068 | static inline int | |
1069 | ov51x_stop(struct usb_ov511 *ov) | |
1070 | { | |
1071 | PDEBUG(4, "stopping"); | |
1072 | ov->stopped = 1; | |
1073 | if (ov->bclass == BCL_OV518) | |
1074 | return (reg_w_mask(ov, R51x_SYS_RESET, 0x3a, 0x3a)); | |
1075 | else | |
1076 | return (reg_w(ov, R51x_SYS_RESET, 0x3d)); | |
1077 | } | |
1078 | ||
1079 | /* Restarts OV511 after ov511_stop() is called. Has no effect if it is not | |
1080 | * actually stopped (for performance). */ | |
1081 | static inline int | |
1082 | ov51x_restart(struct usb_ov511 *ov) | |
1083 | { | |
1084 | if (ov->stopped) { | |
1085 | PDEBUG(4, "restarting"); | |
1086 | ov->stopped = 0; | |
1087 | ||
1088 | /* Reinitialize the stream */ | |
1089 | if (ov->bclass == BCL_OV518) | |
1090 | reg_w(ov, 0x2f, 0x80); | |
1091 | ||
1092 | return (reg_w(ov, R51x_SYS_RESET, 0x00)); | |
1093 | } | |
1094 | ||
1095 | return 0; | |
1096 | } | |
1097 | ||
1098 | /* Sleeps until no frames are active. Returns !0 if got signal */ | |
1099 | static int | |
1100 | ov51x_wait_frames_inactive(struct usb_ov511 *ov) | |
1101 | { | |
1102 | return wait_event_interruptible(ov->wq, ov->curframe < 0); | |
1103 | } | |
1104 | ||
1105 | /* Resets the hardware snapshot button */ | |
1106 | static void | |
1107 | ov51x_clear_snapshot(struct usb_ov511 *ov) | |
1108 | { | |
1109 | if (ov->bclass == BCL_OV511) { | |
1110 | reg_w(ov, R51x_SYS_SNAP, 0x00); | |
1111 | reg_w(ov, R51x_SYS_SNAP, 0x02); | |
1112 | reg_w(ov, R51x_SYS_SNAP, 0x00); | |
1113 | } else if (ov->bclass == BCL_OV518) { | |
1114 | warn("snapshot reset not supported yet on OV518(+)"); | |
1115 | } else { | |
1116 | err("clear snap: invalid bridge type"); | |
1117 | } | |
1118 | } | |
1119 | ||
1120 | #if 0 | |
1121 | /* Checks the status of the snapshot button. Returns 1 if it was pressed since | |
1122 | * it was last cleared, and zero in all other cases (including errors) */ | |
1123 | static int | |
1124 | ov51x_check_snapshot(struct usb_ov511 *ov) | |
1125 | { | |
1126 | int ret, status = 0; | |
1127 | ||
1128 | if (ov->bclass == BCL_OV511) { | |
1129 | ret = reg_r(ov, R51x_SYS_SNAP); | |
1130 | if (ret < 0) { | |
1131 | err("Error checking snspshot status (%d)", ret); | |
1132 | } else if (ret & 0x08) { | |
1133 | status = 1; | |
1134 | } | |
1135 | } else if (ov->bclass == BCL_OV518) { | |
1136 | warn("snapshot check not supported yet on OV518(+)"); | |
1137 | } else { | |
1138 | err("check snap: invalid bridge type"); | |
1139 | } | |
1140 | ||
1141 | return status; | |
1142 | } | |
1143 | #endif | |
1144 | ||
1145 | /* This does an initial reset of an OmniVision sensor and ensures that I2C | |
1146 | * is synchronized. Returns <0 for failure. | |
1147 | */ | |
1148 | static int | |
1149 | init_ov_sensor(struct usb_ov511 *ov) | |
1150 | { | |
1151 | int i, success; | |
1152 | ||
1153 | /* Reset the sensor */ | |
1154 | if (i2c_w(ov, 0x12, 0x80) < 0) | |
1155 | return -EIO; | |
1156 | ||
1157 | /* Wait for it to initialize */ | |
1158 | msleep(150); | |
1159 | ||
1160 | for (i = 0, success = 0; i < i2c_detect_tries && !success; i++) { | |
1161 | if ((i2c_r(ov, OV7610_REG_ID_HIGH) == 0x7F) && | |
1162 | (i2c_r(ov, OV7610_REG_ID_LOW) == 0xA2)) { | |
1163 | success = 1; | |
1164 | continue; | |
1165 | } | |
1166 | ||
1167 | /* Reset the sensor */ | |
1168 | if (i2c_w(ov, 0x12, 0x80) < 0) | |
1169 | return -EIO; | |
1170 | /* Wait for it to initialize */ | |
1171 | msleep(150); | |
1172 | /* Dummy read to sync I2C */ | |
1173 | if (i2c_r(ov, 0x00) < 0) | |
1174 | return -EIO; | |
1175 | } | |
1176 | ||
1177 | if (!success) | |
1178 | return -EIO; | |
1179 | ||
1180 | PDEBUG(1, "I2C synced in %d attempt(s)", i); | |
1181 | ||
1182 | return 0; | |
1183 | } | |
1184 | ||
1185 | static int | |
1186 | ov511_set_packet_size(struct usb_ov511 *ov, int size) | |
1187 | { | |
1188 | int alt, mult; | |
1189 | ||
1190 | if (ov51x_stop(ov) < 0) | |
1191 | return -EIO; | |
1192 | ||
1193 | mult = size >> 5; | |
1194 | ||
1195 | if (ov->bridge == BRG_OV511) { | |
1196 | if (size == 0) | |
1197 | alt = OV511_ALT_SIZE_0; | |
1198 | else if (size == 257) | |
1199 | alt = OV511_ALT_SIZE_257; | |
1200 | else if (size == 513) | |
1201 | alt = OV511_ALT_SIZE_513; | |
1202 | else if (size == 769) | |
1203 | alt = OV511_ALT_SIZE_769; | |
1204 | else if (size == 993) | |
1205 | alt = OV511_ALT_SIZE_993; | |
1206 | else { | |
1207 | err("Set packet size: invalid size (%d)", size); | |
1208 | return -EINVAL; | |
1209 | } | |
1210 | } else if (ov->bridge == BRG_OV511PLUS) { | |
1211 | if (size == 0) | |
1212 | alt = OV511PLUS_ALT_SIZE_0; | |
1213 | else if (size == 33) | |
1214 | alt = OV511PLUS_ALT_SIZE_33; | |
1215 | else if (size == 129) | |
1216 | alt = OV511PLUS_ALT_SIZE_129; | |
1217 | else if (size == 257) | |
1218 | alt = OV511PLUS_ALT_SIZE_257; | |
1219 | else if (size == 385) | |
1220 | alt = OV511PLUS_ALT_SIZE_385; | |
1221 | else if (size == 513) | |
1222 | alt = OV511PLUS_ALT_SIZE_513; | |
1223 | else if (size == 769) | |
1224 | alt = OV511PLUS_ALT_SIZE_769; | |
1225 | else if (size == 961) | |
1226 | alt = OV511PLUS_ALT_SIZE_961; | |
1227 | else { | |
1228 | err("Set packet size: invalid size (%d)", size); | |
1229 | return -EINVAL; | |
1230 | } | |
1231 | } else { | |
1232 | err("Set packet size: Invalid bridge type"); | |
1233 | return -EINVAL; | |
1234 | } | |
1235 | ||
1236 | PDEBUG(3, "%d, mult=%d, alt=%d", size, mult, alt); | |
1237 | ||
1238 | if (reg_w(ov, R51x_FIFO_PSIZE, mult) < 0) | |
1239 | return -EIO; | |
1240 | ||
1241 | if (usb_set_interface(ov->dev, ov->iface, alt) < 0) { | |
1242 | err("Set packet size: set interface error"); | |
1243 | return -EBUSY; | |
1244 | } | |
1245 | ||
1246 | if (ov51x_reset(ov, OV511_RESET_NOREGS) < 0) | |
1247 | return -EIO; | |
1248 | ||
1249 | ov->packet_size = size; | |
1250 | ||
1251 | if (ov51x_restart(ov) < 0) | |
1252 | return -EIO; | |
1253 | ||
1254 | return 0; | |
1255 | } | |
1256 | ||
1257 | /* Note: Unlike the OV511/OV511+, the size argument does NOT include the | |
1258 | * optional packet number byte. The actual size *is* stored in ov->packet_size, | |
1259 | * though. */ | |
1260 | static int | |
1261 | ov518_set_packet_size(struct usb_ov511 *ov, int size) | |
1262 | { | |
1263 | int alt; | |
1264 | ||
1265 | if (ov51x_stop(ov) < 0) | |
1266 | return -EIO; | |
1267 | ||
1268 | if (ov->bclass == BCL_OV518) { | |
1269 | if (size == 0) | |
1270 | alt = OV518_ALT_SIZE_0; | |
1271 | else if (size == 128) | |
1272 | alt = OV518_ALT_SIZE_128; | |
1273 | else if (size == 256) | |
1274 | alt = OV518_ALT_SIZE_256; | |
1275 | else if (size == 384) | |
1276 | alt = OV518_ALT_SIZE_384; | |
1277 | else if (size == 512) | |
1278 | alt = OV518_ALT_SIZE_512; | |
1279 | else if (size == 640) | |
1280 | alt = OV518_ALT_SIZE_640; | |
1281 | else if (size == 768) | |
1282 | alt = OV518_ALT_SIZE_768; | |
1283 | else if (size == 896) | |
1284 | alt = OV518_ALT_SIZE_896; | |
1285 | else { | |
1286 | err("Set packet size: invalid size (%d)", size); | |
1287 | return -EINVAL; | |
1288 | } | |
1289 | } else { | |
1290 | err("Set packet size: Invalid bridge type"); | |
1291 | return -EINVAL; | |
1292 | } | |
1293 | ||
1294 | PDEBUG(3, "%d, alt=%d", size, alt); | |
1295 | ||
1296 | ov->packet_size = size; | |
1297 | if (size > 0) { | |
1298 | /* Program ISO FIFO size reg (packet number isn't included) */ | |
1299 | ov518_reg_w32(ov, 0x30, size, 2); | |
1300 | ||
1301 | if (ov->packet_numbering) | |
1302 | ++ov->packet_size; | |
1303 | } | |
1304 | ||
1305 | if (usb_set_interface(ov->dev, ov->iface, alt) < 0) { | |
1306 | err("Set packet size: set interface error"); | |
1307 | return -EBUSY; | |
1308 | } | |
1309 | ||
1310 | /* Initialize the stream */ | |
1311 | if (reg_w(ov, 0x2f, 0x80) < 0) | |
1312 | return -EIO; | |
1313 | ||
1314 | if (ov51x_restart(ov) < 0) | |
1315 | return -EIO; | |
1316 | ||
1317 | if (ov51x_reset(ov, OV511_RESET_NOREGS) < 0) | |
1318 | return -EIO; | |
1319 | ||
1320 | return 0; | |
1321 | } | |
1322 | ||
1323 | /* Upload compression params and quantization tables. Returns 0 for success. */ | |
1324 | static int | |
1325 | ov511_init_compression(struct usb_ov511 *ov) | |
1326 | { | |
1327 | int rc = 0; | |
1328 | ||
1329 | if (!ov->compress_inited) { | |
1330 | reg_w(ov, 0x70, phy); | |
1331 | reg_w(ov, 0x71, phuv); | |
1332 | reg_w(ov, 0x72, pvy); | |
1333 | reg_w(ov, 0x73, pvuv); | |
1334 | reg_w(ov, 0x74, qhy); | |
1335 | reg_w(ov, 0x75, qhuv); | |
1336 | reg_w(ov, 0x76, qvy); | |
1337 | reg_w(ov, 0x77, qvuv); | |
1338 | ||
1339 | if (ov511_upload_quan_tables(ov) < 0) { | |
1340 | err("Error uploading quantization tables"); | |
1341 | rc = -EIO; | |
1342 | goto out; | |
1343 | } | |
1344 | } | |
1345 | ||
1346 | ov->compress_inited = 1; | |
1347 | out: | |
1348 | return rc; | |
1349 | } | |
1350 | ||
1351 | /* Upload compression params and quantization tables. Returns 0 for success. */ | |
1352 | static int | |
1353 | ov518_init_compression(struct usb_ov511 *ov) | |
1354 | { | |
1355 | int rc = 0; | |
1356 | ||
1357 | if (!ov->compress_inited) { | |
1358 | if (ov518_upload_quan_tables(ov) < 0) { | |
1359 | err("Error uploading quantization tables"); | |
1360 | rc = -EIO; | |
1361 | goto out; | |
1362 | } | |
1363 | } | |
1364 | ||
1365 | ov->compress_inited = 1; | |
1366 | out: | |
1367 | return rc; | |
1368 | } | |
1369 | ||
1370 | /* -------------------------------------------------------------------------- */ | |
1371 | ||
1372 | /* Sets sensor's contrast setting to "val" */ | |
1373 | static int | |
1374 | sensor_set_contrast(struct usb_ov511 *ov, unsigned short val) | |
1375 | { | |
1376 | int rc; | |
1377 | ||
1378 | PDEBUG(3, "%d", val); | |
1379 | ||
1380 | if (ov->stop_during_set) | |
1381 | if (ov51x_stop(ov) < 0) | |
1382 | return -EIO; | |
1383 | ||
1384 | switch (ov->sensor) { | |
1385 | case SEN_OV7610: | |
1386 | case SEN_OV6620: | |
1387 | { | |
1388 | rc = i2c_w(ov, OV7610_REG_CNT, val >> 8); | |
1389 | if (rc < 0) | |
1390 | goto out; | |
1391 | break; | |
1392 | } | |
1393 | case SEN_OV6630: | |
1394 | { | |
1395 | rc = i2c_w_mask(ov, OV7610_REG_CNT, val >> 12, 0x0f); | |
1396 | if (rc < 0) | |
1397 | goto out; | |
1398 | break; | |
1399 | } | |
1400 | case SEN_OV7620: | |
1401 | { | |
1402 | unsigned char ctab[] = { | |
1403 | 0x01, 0x05, 0x09, 0x11, 0x15, 0x35, 0x37, 0x57, | |
1404 | 0x5b, 0xa5, 0xa7, 0xc7, 0xc9, 0xcf, 0xef, 0xff | |
1405 | }; | |
1406 | ||
1407 | /* Use Y gamma control instead. Bit 0 enables it. */ | |
1408 | rc = i2c_w(ov, 0x64, ctab[val>>12]); | |
1409 | if (rc < 0) | |
1410 | goto out; | |
1411 | break; | |
1412 | } | |
1413 | case SEN_SAA7111A: | |
1414 | { | |
1415 | rc = i2c_w(ov, 0x0b, val >> 9); | |
1416 | if (rc < 0) | |
1417 | goto out; | |
1418 | break; | |
1419 | } | |
1420 | default: | |
1421 | { | |
1422 | PDEBUG(3, "Unsupported with this sensor"); | |
1423 | rc = -EPERM; | |
1424 | goto out; | |
1425 | } | |
1426 | } | |
1427 | ||
1428 | rc = 0; /* Success */ | |
1429 | ov->contrast = val; | |
1430 | out: | |
1431 | if (ov51x_restart(ov) < 0) | |
1432 | return -EIO; | |
1433 | ||
1434 | return rc; | |
1435 | } | |
1436 | ||
1437 | /* Gets sensor's contrast setting */ | |
1438 | static int | |
1439 | sensor_get_contrast(struct usb_ov511 *ov, unsigned short *val) | |
1440 | { | |
1441 | int rc; | |
1442 | ||
1443 | switch (ov->sensor) { | |
1444 | case SEN_OV7610: | |
1445 | case SEN_OV6620: | |
1446 | rc = i2c_r(ov, OV7610_REG_CNT); | |
1447 | if (rc < 0) | |
1448 | return rc; | |
1449 | else | |
1450 | *val = rc << 8; | |
1451 | break; | |
1452 | case SEN_OV6630: | |
1453 | rc = i2c_r(ov, OV7610_REG_CNT); | |
1454 | if (rc < 0) | |
1455 | return rc; | |
1456 | else | |
1457 | *val = rc << 12; | |
1458 | break; | |
1459 | case SEN_OV7620: | |
1460 | /* Use Y gamma reg instead. Bit 0 is the enable bit. */ | |
1461 | rc = i2c_r(ov, 0x64); | |
1462 | if (rc < 0) | |
1463 | return rc; | |
1464 | else | |
1465 | *val = (rc & 0xfe) << 8; | |
1466 | break; | |
1467 | case SEN_SAA7111A: | |
1468 | *val = ov->contrast; | |
1469 | break; | |
1470 | default: | |
1471 | PDEBUG(3, "Unsupported with this sensor"); | |
1472 | return -EPERM; | |
1473 | } | |
1474 | ||
1475 | PDEBUG(3, "%d", *val); | |
1476 | ov->contrast = *val; | |
1477 | ||
1478 | return 0; | |
1479 | } | |
1480 | ||
1481 | /* -------------------------------------------------------------------------- */ | |
1482 | ||
1483 | /* Sets sensor's brightness setting to "val" */ | |
1484 | static int | |
1485 | sensor_set_brightness(struct usb_ov511 *ov, unsigned short val) | |
1486 | { | |
1487 | int rc; | |
1488 | ||
1489 | PDEBUG(4, "%d", val); | |
1490 | ||
1491 | if (ov->stop_during_set) | |
1492 | if (ov51x_stop(ov) < 0) | |
1493 | return -EIO; | |
1494 | ||
1495 | switch (ov->sensor) { | |
1496 | case SEN_OV7610: | |
1497 | case SEN_OV76BE: | |
1498 | case SEN_OV6620: | |
1499 | case SEN_OV6630: | |
1500 | rc = i2c_w(ov, OV7610_REG_BRT, val >> 8); | |
1501 | if (rc < 0) | |
1502 | goto out; | |
1503 | break; | |
1504 | case SEN_OV7620: | |
1505 | /* 7620 doesn't like manual changes when in auto mode */ | |
1506 | if (!ov->auto_brt) { | |
1507 | rc = i2c_w(ov, OV7610_REG_BRT, val >> 8); | |
1508 | if (rc < 0) | |
1509 | goto out; | |
1510 | } | |
1511 | break; | |
1512 | case SEN_SAA7111A: | |
1513 | rc = i2c_w(ov, 0x0a, val >> 8); | |
1514 | if (rc < 0) | |
1515 | goto out; | |
1516 | break; | |
1517 | default: | |
1518 | PDEBUG(3, "Unsupported with this sensor"); | |
1519 | rc = -EPERM; | |
1520 | goto out; | |
1521 | } | |
1522 | ||
1523 | rc = 0; /* Success */ | |
1524 | ov->brightness = val; | |
1525 | out: | |
1526 | if (ov51x_restart(ov) < 0) | |
1527 | return -EIO; | |
1528 | ||
1529 | return rc; | |
1530 | } | |
1531 | ||
1532 | /* Gets sensor's brightness setting */ | |
1533 | static int | |
1534 | sensor_get_brightness(struct usb_ov511 *ov, unsigned short *val) | |
1535 | { | |
1536 | int rc; | |
1537 | ||
1538 | switch (ov->sensor) { | |
1539 | case SEN_OV7610: | |
1540 | case SEN_OV76BE: | |
1541 | case SEN_OV7620: | |
1542 | case SEN_OV6620: | |
1543 | case SEN_OV6630: | |
1544 | rc = i2c_r(ov, OV7610_REG_BRT); | |
1545 | if (rc < 0) | |
1546 | return rc; | |
1547 | else | |
1548 | *val = rc << 8; | |
1549 | break; | |
1550 | case SEN_SAA7111A: | |
1551 | *val = ov->brightness; | |
1552 | break; | |
1553 | default: | |
1554 | PDEBUG(3, "Unsupported with this sensor"); | |
1555 | return -EPERM; | |
1556 | } | |
1557 | ||
1558 | PDEBUG(3, "%d", *val); | |
1559 | ov->brightness = *val; | |
1560 | ||
1561 | return 0; | |
1562 | } | |
1563 | ||
1564 | /* -------------------------------------------------------------------------- */ | |
1565 | ||
1566 | /* Sets sensor's saturation (color intensity) setting to "val" */ | |
1567 | static int | |
1568 | sensor_set_saturation(struct usb_ov511 *ov, unsigned short val) | |
1569 | { | |
1570 | int rc; | |
1571 | ||
1572 | PDEBUG(3, "%d", val); | |
1573 | ||
1574 | if (ov->stop_during_set) | |
1575 | if (ov51x_stop(ov) < 0) | |
1576 | return -EIO; | |
1577 | ||
1578 | switch (ov->sensor) { | |
1579 | case SEN_OV7610: | |
1580 | case SEN_OV76BE: | |
1581 | case SEN_OV6620: | |
1582 | case SEN_OV6630: | |
1583 | rc = i2c_w(ov, OV7610_REG_SAT, val >> 8); | |
1584 | if (rc < 0) | |
1585 | goto out; | |
1586 | break; | |
1587 | case SEN_OV7620: | |
1588 | // /* Use UV gamma control instead. Bits 0 & 7 are reserved. */ | |
1589 | // rc = ov_i2c_write(ov->dev, 0x62, (val >> 9) & 0x7e); | |
1590 | // if (rc < 0) | |
1591 | // goto out; | |
1592 | rc = i2c_w(ov, OV7610_REG_SAT, val >> 8); | |
1593 | if (rc < 0) | |
1594 | goto out; | |
1595 | break; | |
1596 | case SEN_SAA7111A: | |
1597 | rc = i2c_w(ov, 0x0c, val >> 9); | |
1598 | if (rc < 0) | |
1599 | goto out; | |
1600 | break; | |
1601 | default: | |
1602 | PDEBUG(3, "Unsupported with this sensor"); | |
1603 | rc = -EPERM; | |
1604 | goto out; | |
1605 | } | |
1606 | ||
1607 | rc = 0; /* Success */ | |
1608 | ov->colour = val; | |
1609 | out: | |
1610 | if (ov51x_restart(ov) < 0) | |
1611 | return -EIO; | |
1612 | ||
1613 | return rc; | |
1614 | } | |
1615 | ||
1616 | /* Gets sensor's saturation (color intensity) setting */ | |
1617 | static int | |
1618 | sensor_get_saturation(struct usb_ov511 *ov, unsigned short *val) | |
1619 | { | |
1620 | int rc; | |
1621 | ||
1622 | switch (ov->sensor) { | |
1623 | case SEN_OV7610: | |
1624 | case SEN_OV76BE: | |
1625 | case SEN_OV6620: | |
1626 | case SEN_OV6630: | |
1627 | rc = i2c_r(ov, OV7610_REG_SAT); | |
1628 | if (rc < 0) | |
1629 | return rc; | |
1630 | else | |
1631 | *val = rc << 8; | |
1632 | break; | |
1633 | case SEN_OV7620: | |
1634 | // /* Use UV gamma reg instead. Bits 0 & 7 are reserved. */ | |
1635 | // rc = i2c_r(ov, 0x62); | |
1636 | // if (rc < 0) | |
1637 | // return rc; | |
1638 | // else | |
1639 | // *val = (rc & 0x7e) << 9; | |
1640 | rc = i2c_r(ov, OV7610_REG_SAT); | |
1641 | if (rc < 0) | |
1642 | return rc; | |
1643 | else | |
1644 | *val = rc << 8; | |
1645 | break; | |
1646 | case SEN_SAA7111A: | |
1647 | *val = ov->colour; | |
1648 | break; | |
1649 | default: | |
1650 | PDEBUG(3, "Unsupported with this sensor"); | |
1651 | return -EPERM; | |
1652 | } | |
1653 | ||
1654 | PDEBUG(3, "%d", *val); | |
1655 | ov->colour = *val; | |
1656 | ||
1657 | return 0; | |
1658 | } | |
1659 | ||
1660 | /* -------------------------------------------------------------------------- */ | |
1661 | ||
1662 | /* Sets sensor's hue (red/blue balance) setting to "val" */ | |
1663 | static int | |
1664 | sensor_set_hue(struct usb_ov511 *ov, unsigned short val) | |
1665 | { | |
1666 | int rc; | |
1667 | ||
1668 | PDEBUG(3, "%d", val); | |
1669 | ||
1670 | if (ov->stop_during_set) | |
1671 | if (ov51x_stop(ov) < 0) | |
1672 | return -EIO; | |
1673 | ||
1674 | switch (ov->sensor) { | |
1675 | case SEN_OV7610: | |
1676 | case SEN_OV6620: | |
1677 | case SEN_OV6630: | |
1678 | rc = i2c_w(ov, OV7610_REG_RED, 0xFF - (val >> 8)); | |
1679 | if (rc < 0) | |
1680 | goto out; | |
1681 | ||
1682 | rc = i2c_w(ov, OV7610_REG_BLUE, val >> 8); | |
1683 | if (rc < 0) | |
1684 | goto out; | |
1685 | break; | |
1686 | case SEN_OV7620: | |
1687 | // Hue control is causing problems. I will enable it once it's fixed. | |
1688 | #if 0 | |
1689 | rc = i2c_w(ov, 0x7a, (unsigned char)(val >> 8) + 0xb); | |
1690 | if (rc < 0) | |
1691 | goto out; | |
1692 | ||
1693 | rc = i2c_w(ov, 0x79, (unsigned char)(val >> 8) + 0xb); | |
1694 | if (rc < 0) | |
1695 | goto out; | |
1696 | #endif | |
1697 | break; | |
1698 | case SEN_SAA7111A: | |
1699 | rc = i2c_w(ov, 0x0d, (val + 32768) >> 8); | |
1700 | if (rc < 0) | |
1701 | goto out; | |
1702 | break; | |
1703 | default: | |
1704 | PDEBUG(3, "Unsupported with this sensor"); | |
1705 | rc = -EPERM; | |
1706 | goto out; | |
1707 | } | |
1708 | ||
1709 | rc = 0; /* Success */ | |
1710 | ov->hue = val; | |
1711 | out: | |
1712 | if (ov51x_restart(ov) < 0) | |
1713 | return -EIO; | |
1714 | ||
1715 | return rc; | |
1716 | } | |
1717 | ||
1718 | /* Gets sensor's hue (red/blue balance) setting */ | |
1719 | static int | |
1720 | sensor_get_hue(struct usb_ov511 *ov, unsigned short *val) | |
1721 | { | |
1722 | int rc; | |
1723 | ||
1724 | switch (ov->sensor) { | |
1725 | case SEN_OV7610: | |
1726 | case SEN_OV6620: | |
1727 | case SEN_OV6630: | |
1728 | rc = i2c_r(ov, OV7610_REG_BLUE); | |
1729 | if (rc < 0) | |
1730 | return rc; | |
1731 | else | |
1732 | *val = rc << 8; | |
1733 | break; | |
1734 | case SEN_OV7620: | |
1735 | rc = i2c_r(ov, 0x7a); | |
1736 | if (rc < 0) | |
1737 | return rc; | |
1738 | else | |
1739 | *val = rc << 8; | |
1740 | break; | |
1741 | case SEN_SAA7111A: | |
1742 | *val = ov->hue; | |
1743 | break; | |
1744 | default: | |
1745 | PDEBUG(3, "Unsupported with this sensor"); | |
1746 | return -EPERM; | |
1747 | } | |
1748 | ||
1749 | PDEBUG(3, "%d", *val); | |
1750 | ov->hue = *val; | |
1751 | ||
1752 | return 0; | |
1753 | } | |
1754 | ||
1755 | /* -------------------------------------------------------------------------- */ | |
1756 | ||
1757 | static int | |
1758 | sensor_set_picture(struct usb_ov511 *ov, struct video_picture *p) | |
1759 | { | |
1760 | int rc; | |
1761 | ||
1762 | PDEBUG(4, "sensor_set_picture"); | |
1763 | ||
1764 | ov->whiteness = p->whiteness; | |
1765 | ||
1766 | /* Don't return error if a setting is unsupported, or rest of settings | |
1767 | * will not be performed */ | |
1768 | ||
1769 | rc = sensor_set_contrast(ov, p->contrast); | |
1770 | if (FATAL_ERROR(rc)) | |
1771 | return rc; | |
1772 | ||
1773 | rc = sensor_set_brightness(ov, p->brightness); | |
1774 | if (FATAL_ERROR(rc)) | |
1775 | return rc; | |
1776 | ||
1777 | rc = sensor_set_saturation(ov, p->colour); | |
1778 | if (FATAL_ERROR(rc)) | |
1779 | return rc; | |
1780 | ||
1781 | rc = sensor_set_hue(ov, p->hue); | |
1782 | if (FATAL_ERROR(rc)) | |
1783 | return rc; | |
1784 | ||
1785 | return 0; | |
1786 | } | |
1787 | ||
1788 | static int | |
1789 | sensor_get_picture(struct usb_ov511 *ov, struct video_picture *p) | |
1790 | { | |
1791 | int rc; | |
1792 | ||
1793 | PDEBUG(4, "sensor_get_picture"); | |
1794 | ||
1795 | /* Don't return error if a setting is unsupported, or rest of settings | |
1796 | * will not be performed */ | |
1797 | ||
1798 | rc = sensor_get_contrast(ov, &(p->contrast)); | |
1799 | if (FATAL_ERROR(rc)) | |
1800 | return rc; | |
1801 | ||
1802 | rc = sensor_get_brightness(ov, &(p->brightness)); | |
1803 | if (FATAL_ERROR(rc)) | |
1804 | return rc; | |
1805 | ||
1806 | rc = sensor_get_saturation(ov, &(p->colour)); | |
1807 | if (FATAL_ERROR(rc)) | |
1808 | return rc; | |
1809 | ||
1810 | rc = sensor_get_hue(ov, &(p->hue)); | |
1811 | if (FATAL_ERROR(rc)) | |
1812 | return rc; | |
1813 | ||
1814 | p->whiteness = 105 << 8; | |
1815 | ||
1816 | return 0; | |
1817 | } | |
1818 | ||
1819 | #if 0 | |
1820 | // FIXME: Exposure range is only 0x00-0x7f in interlace mode | |
1821 | /* Sets current exposure for sensor. This only has an effect if auto-exposure | |
1822 | * is off */ | |
1823 | static inline int | |
1824 | sensor_set_exposure(struct usb_ov511 *ov, unsigned char val) | |
1825 | { | |
1826 | int rc; | |
1827 | ||
1828 | PDEBUG(3, "%d", val); | |
1829 | ||
1830 | if (ov->stop_during_set) | |
1831 | if (ov51x_stop(ov) < 0) | |
1832 | return -EIO; | |
1833 | ||
1834 | switch (ov->sensor) { | |
1835 | case SEN_OV6620: | |
1836 | case SEN_OV6630: | |
1837 | case SEN_OV7610: | |
1838 | case SEN_OV7620: | |
1839 | case SEN_OV76BE: | |
1840 | case SEN_OV8600: | |
1841 | rc = i2c_w(ov, 0x10, val); | |
1842 | if (rc < 0) | |
1843 | goto out; | |
1844 | ||
1845 | break; | |
1846 | case SEN_KS0127: | |
1847 | case SEN_KS0127B: | |
1848 | case SEN_SAA7111A: | |
1849 | PDEBUG(3, "Unsupported with this sensor"); | |
1850 | return -EPERM; | |
1851 | default: | |
1852 | err("Sensor not supported for set_exposure"); | |
1853 | return -EINVAL; | |
1854 | } | |
1855 | ||
1856 | rc = 0; /* Success */ | |
1857 | ov->exposure = val; | |
1858 | out: | |
1859 | if (ov51x_restart(ov) < 0) | |
1860 | return -EIO; | |
1861 | ||
1862 | return rc; | |
1863 | } | |
1864 | #endif | |
1865 | ||
1866 | /* Gets current exposure level from sensor, regardless of whether it is under | |
1867 | * manual control. */ | |
1868 | static int | |
1869 | sensor_get_exposure(struct usb_ov511 *ov, unsigned char *val) | |
1870 | { | |
1871 | int rc; | |
1872 | ||
1873 | switch (ov->sensor) { | |
1874 | case SEN_OV7610: | |
1875 | case SEN_OV6620: | |
1876 | case SEN_OV6630: | |
1877 | case SEN_OV7620: | |
1878 | case SEN_OV76BE: | |
1879 | case SEN_OV8600: | |
1880 | rc = i2c_r(ov, 0x10); | |
1881 | if (rc < 0) | |
1882 | return rc; | |
1883 | else | |
1884 | *val = rc; | |
1885 | break; | |
1886 | case SEN_KS0127: | |
1887 | case SEN_KS0127B: | |
1888 | case SEN_SAA7111A: | |
1889 | val = NULL; | |
1890 | PDEBUG(3, "Unsupported with this sensor"); | |
1891 | return -EPERM; | |
1892 | default: | |
1893 | err("Sensor not supported for get_exposure"); | |
1894 | return -EINVAL; | |
1895 | } | |
1896 | ||
1897 | PDEBUG(3, "%d", *val); | |
1898 | ov->exposure = *val; | |
1899 | ||
1900 | return 0; | |
1901 | } | |
1902 | ||
1903 | /* Turns on or off the LED. Only has an effect with OV511+/OV518(+) */ | |
1904 | static void | |
1905 | ov51x_led_control(struct usb_ov511 *ov, int enable) | |
1906 | { | |
1907 | PDEBUG(4, " (%s)", enable ? "turn on" : "turn off"); | |
1908 | ||
1909 | if (ov->bridge == BRG_OV511PLUS) | |
1910 | reg_w(ov, R511_SYS_LED_CTL, enable ? 1 : 0); | |
1911 | else if (ov->bclass == BCL_OV518) | |
1912 | reg_w_mask(ov, R518_GPIO_OUT, enable ? 0x02 : 0x00, 0x02); | |
1913 | ||
1914 | return; | |
1915 | } | |
1916 | ||
1917 | /* Matches the sensor's internal frame rate to the lighting frequency. | |
1918 | * Valid frequencies are: | |
1919 | * 50 - 50Hz, for European and Asian lighting | |
1920 | * 60 - 60Hz, for American lighting | |
1921 | * | |
1922 | * Tested with: OV7610, OV7620, OV76BE, OV6620 | |
1923 | * Unsupported: KS0127, KS0127B, SAA7111A | |
1924 | * Returns: 0 for success | |
1925 | */ | |
1926 | static int | |
1927 | sensor_set_light_freq(struct usb_ov511 *ov, int freq) | |
1928 | { | |
1929 | int sixty; | |
1930 | ||
1931 | PDEBUG(4, "%d Hz", freq); | |
1932 | ||
1933 | if (freq == 60) | |
1934 | sixty = 1; | |
1935 | else if (freq == 50) | |
1936 | sixty = 0; | |
1937 | else { | |
1938 | err("Invalid light freq (%d Hz)", freq); | |
1939 | return -EINVAL; | |
1940 | } | |
1941 | ||
1942 | switch (ov->sensor) { | |
1943 | case SEN_OV7610: | |
1944 | i2c_w_mask(ov, 0x2a, sixty?0x00:0x80, 0x80); | |
1945 | i2c_w(ov, 0x2b, sixty?0x00:0xac); | |
1946 | i2c_w_mask(ov, 0x13, 0x10, 0x10); | |
1947 | i2c_w_mask(ov, 0x13, 0x00, 0x10); | |
1948 | break; | |
1949 | case SEN_OV7620: | |
1950 | case SEN_OV76BE: | |
1951 | case SEN_OV8600: | |
1952 | i2c_w_mask(ov, 0x2a, sixty?0x00:0x80, 0x80); | |
1953 | i2c_w(ov, 0x2b, sixty?0x00:0xac); | |
1954 | i2c_w_mask(ov, 0x76, 0x01, 0x01); | |
1955 | break; | |
1956 | case SEN_OV6620: | |
1957 | case SEN_OV6630: | |
1958 | i2c_w(ov, 0x2b, sixty?0xa8:0x28); | |
1959 | i2c_w(ov, 0x2a, sixty?0x84:0xa4); | |
1960 | break; | |
1961 | case SEN_KS0127: | |
1962 | case SEN_KS0127B: | |
1963 | case SEN_SAA7111A: | |
1964 | PDEBUG(5, "Unsupported with this sensor"); | |
1965 | return -EPERM; | |
1966 | default: | |
1967 | err("Sensor not supported for set_light_freq"); | |
1968 | return -EINVAL; | |
1969 | } | |
1970 | ||
1971 | ov->lightfreq = freq; | |
1972 | ||
1973 | return 0; | |
1974 | } | |
1975 | ||
1976 | /* If enable is true, turn on the sensor's banding filter, otherwise turn it | |
1977 | * off. This filter tries to reduce the pattern of horizontal light/dark bands | |
1978 | * caused by some (usually fluorescent) lighting. The light frequency must be | |
1979 | * set either before or after enabling it with ov51x_set_light_freq(). | |
1980 | * | |
1981 | * Tested with: OV7610, OV7620, OV76BE, OV6620. | |
1982 | * Unsupported: KS0127, KS0127B, SAA7111A | |
1983 | * Returns: 0 for success | |
1984 | */ | |
1985 | static int | |
1986 | sensor_set_banding_filter(struct usb_ov511 *ov, int enable) | |
1987 | { | |
1988 | int rc; | |
1989 | ||
1990 | PDEBUG(4, " (%s)", enable ? "turn on" : "turn off"); | |
1991 | ||
1992 | if (ov->sensor == SEN_KS0127 || ov->sensor == SEN_KS0127B | |
1993 | || ov->sensor == SEN_SAA7111A) { | |
1994 | PDEBUG(5, "Unsupported with this sensor"); | |
1995 | return -EPERM; | |
1996 | } | |
1997 | ||
1998 | rc = i2c_w_mask(ov, 0x2d, enable?0x04:0x00, 0x04); | |
1999 | if (rc < 0) | |
2000 | return rc; | |
2001 | ||
2002 | ov->bandfilt = enable; | |
2003 | ||
2004 | return 0; | |
2005 | } | |
2006 | ||
2007 | /* If enable is true, turn on the sensor's auto brightness control, otherwise | |
2008 | * turn it off. | |
2009 | * | |
2010 | * Unsupported: KS0127, KS0127B, SAA7111A | |
2011 | * Returns: 0 for success | |
2012 | */ | |
2013 | static int | |
2014 | sensor_set_auto_brightness(struct usb_ov511 *ov, int enable) | |
2015 | { | |
2016 | int rc; | |
2017 | ||
2018 | PDEBUG(4, " (%s)", enable ? "turn on" : "turn off"); | |
2019 | ||
2020 | if (ov->sensor == SEN_KS0127 || ov->sensor == SEN_KS0127B | |
2021 | || ov->sensor == SEN_SAA7111A) { | |
2022 | PDEBUG(5, "Unsupported with this sensor"); | |
2023 | return -EPERM; | |
2024 | } | |
2025 | ||
2026 | rc = i2c_w_mask(ov, 0x2d, enable?0x10:0x00, 0x10); | |
2027 | if (rc < 0) | |
2028 | return rc; | |
2029 | ||
2030 | ov->auto_brt = enable; | |
2031 | ||
2032 | return 0; | |
2033 | } | |
2034 | ||
2035 | /* If enable is true, turn on the sensor's auto exposure control, otherwise | |
2036 | * turn it off. | |
2037 | * | |
2038 | * Unsupported: KS0127, KS0127B, SAA7111A | |
2039 | * Returns: 0 for success | |
2040 | */ | |
2041 | static int | |
2042 | sensor_set_auto_exposure(struct usb_ov511 *ov, int enable) | |
2043 | { | |
2044 | PDEBUG(4, " (%s)", enable ? "turn on" : "turn off"); | |
2045 | ||
2046 | switch (ov->sensor) { | |
2047 | case SEN_OV7610: | |
2048 | i2c_w_mask(ov, 0x29, enable?0x00:0x80, 0x80); | |
2049 | break; | |
2050 | case SEN_OV6620: | |
2051 | case SEN_OV7620: | |
2052 | case SEN_OV76BE: | |
2053 | case SEN_OV8600: | |
2054 | i2c_w_mask(ov, 0x13, enable?0x01:0x00, 0x01); | |
2055 | break; | |
2056 | case SEN_OV6630: | |
2057 | i2c_w_mask(ov, 0x28, enable?0x00:0x10, 0x10); | |
2058 | break; | |
2059 | case SEN_KS0127: | |
2060 | case SEN_KS0127B: | |
2061 | case SEN_SAA7111A: | |
2062 | PDEBUG(5, "Unsupported with this sensor"); | |
2063 | return -EPERM; | |
2064 | default: | |
2065 | err("Sensor not supported for set_auto_exposure"); | |
2066 | return -EINVAL; | |
2067 | } | |
2068 | ||
2069 | ov->auto_exp = enable; | |
2070 | ||
2071 | return 0; | |
2072 | } | |
2073 | ||
2074 | /* Modifies the sensor's exposure algorithm to allow proper exposure of objects | |
2075 | * that are illuminated from behind. | |
2076 | * | |
2077 | * Tested with: OV6620, OV7620 | |
2078 | * Unsupported: OV7610, OV76BE, KS0127, KS0127B, SAA7111A | |
2079 | * Returns: 0 for success | |
2080 | */ | |
2081 | static int | |
2082 | sensor_set_backlight(struct usb_ov511 *ov, int enable) | |
2083 | { | |
2084 | PDEBUG(4, " (%s)", enable ? "turn on" : "turn off"); | |
2085 | ||
2086 | switch (ov->sensor) { | |
2087 | case SEN_OV7620: | |
2088 | case SEN_OV8600: | |
2089 | i2c_w_mask(ov, 0x68, enable?0xe0:0xc0, 0xe0); | |
2090 | i2c_w_mask(ov, 0x29, enable?0x08:0x00, 0x08); | |
2091 | i2c_w_mask(ov, 0x28, enable?0x02:0x00, 0x02); | |
2092 | break; | |
2093 | case SEN_OV6620: | |
2094 | i2c_w_mask(ov, 0x4e, enable?0xe0:0xc0, 0xe0); | |
2095 | i2c_w_mask(ov, 0x29, enable?0x08:0x00, 0x08); | |
2096 | i2c_w_mask(ov, 0x0e, enable?0x80:0x00, 0x80); | |
2097 | break; | |
2098 | case SEN_OV6630: | |
2099 | i2c_w_mask(ov, 0x4e, enable?0x80:0x60, 0xe0); | |
2100 | i2c_w_mask(ov, 0x29, enable?0x08:0x00, 0x08); | |
2101 | i2c_w_mask(ov, 0x28, enable?0x02:0x00, 0x02); | |
2102 | break; | |
2103 | case SEN_OV7610: | |
2104 | case SEN_OV76BE: | |
2105 | case SEN_KS0127: | |
2106 | case SEN_KS0127B: | |
2107 | case SEN_SAA7111A: | |
2108 | PDEBUG(5, "Unsupported with this sensor"); | |
2109 | return -EPERM; | |
2110 | default: | |
2111 | err("Sensor not supported for set_backlight"); | |
2112 | return -EINVAL; | |
2113 | } | |
2114 | ||
2115 | ov->backlight = enable; | |
2116 | ||
2117 | return 0; | |
2118 | } | |
2119 | ||
2120 | static int | |
2121 | sensor_set_mirror(struct usb_ov511 *ov, int enable) | |
2122 | { | |
2123 | PDEBUG(4, " (%s)", enable ? "turn on" : "turn off"); | |
2124 | ||
2125 | switch (ov->sensor) { | |
2126 | case SEN_OV6620: | |
2127 | case SEN_OV6630: | |
2128 | case SEN_OV7610: | |
2129 | case SEN_OV7620: | |
2130 | case SEN_OV76BE: | |
2131 | case SEN_OV8600: | |
2132 | i2c_w_mask(ov, 0x12, enable?0x40:0x00, 0x40); | |
2133 | break; | |
2134 | case SEN_KS0127: | |
2135 | case SEN_KS0127B: | |
2136 | case SEN_SAA7111A: | |
2137 | PDEBUG(5, "Unsupported with this sensor"); | |
2138 | return -EPERM; | |
2139 | default: | |
2140 | err("Sensor not supported for set_mirror"); | |
2141 | return -EINVAL; | |
2142 | } | |
2143 | ||
2144 | ov->mirror = enable; | |
2145 | ||
2146 | return 0; | |
2147 | } | |
2148 | ||
2149 | /* Returns number of bits per pixel (regardless of where they are located; | |
2150 | * planar or not), or zero for unsupported format. | |
2151 | */ | |
2152 | static inline int | |
2153 | get_depth(int palette) | |
2154 | { | |
2155 | switch (palette) { | |
2156 | case VIDEO_PALETTE_GREY: return 8; | |
2157 | case VIDEO_PALETTE_YUV420: return 12; | |
2158 | case VIDEO_PALETTE_YUV420P: return 12; /* Planar */ | |
2159 | default: return 0; /* Invalid format */ | |
2160 | } | |
2161 | } | |
2162 | ||
2163 | /* Bytes per frame. Used by read(). Return of 0 indicates error */ | |
2164 | static inline long int | |
2165 | get_frame_length(struct ov511_frame *frame) | |
2166 | { | |
2167 | if (!frame) | |
2168 | return 0; | |
2169 | else | |
2170 | return ((frame->width * frame->height | |
2171 | * get_depth(frame->format)) >> 3); | |
2172 | } | |
2173 | ||
2174 | static int | |
2175 | mode_init_ov_sensor_regs(struct usb_ov511 *ov, int width, int height, | |
2176 | int mode, int sub_flag, int qvga) | |
2177 | { | |
2178 | int clock; | |
2179 | ||
2180 | /******** Mode (VGA/QVGA) and sensor specific regs ********/ | |
2181 | ||
2182 | switch (ov->sensor) { | |
2183 | case SEN_OV7610: | |
2184 | i2c_w(ov, 0x14, qvga?0x24:0x04); | |
2185 | // FIXME: Does this improve the image quality or frame rate? | |
2186 | #if 0 | |
2187 | i2c_w_mask(ov, 0x28, qvga?0x00:0x20, 0x20); | |
2188 | i2c_w(ov, 0x24, 0x10); | |
2189 | i2c_w(ov, 0x25, qvga?0x40:0x8a); | |
2190 | i2c_w(ov, 0x2f, qvga?0x30:0xb0); | |
2191 | i2c_w(ov, 0x35, qvga?0x1c:0x9c); | |
2192 | #endif | |
2193 | break; | |
2194 | case SEN_OV7620: | |
2195 | // i2c_w(ov, 0x2b, 0x00); | |
2196 | i2c_w(ov, 0x14, qvga?0xa4:0x84); | |
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?0xf0:0x90, 0xf0); | |
2202 | i2c_w_mask(ov, 0x74, qvga?0x20:0x00, 0x20); | |
2203 | break; | |
2204 | case SEN_OV76BE: | |
2205 | // i2c_w(ov, 0x2b, 0x00); | |
2206 | i2c_w(ov, 0x14, qvga?0xa4:0x84); | |
2207 | // FIXME: Enable this once 7620AE uses 7620 initial settings | |
2208 | #if 0 | |
2209 | i2c_w_mask(ov, 0x28, qvga?0x00:0x20, 0x20); | |
2210 | i2c_w(ov, 0x24, qvga?0x20:0x3a); | |
2211 | i2c_w(ov, 0x25, qvga?0x30:0x60); | |
2212 | i2c_w_mask(ov, 0x2d, qvga?0x40:0x00, 0x40); | |
2213 | i2c_w_mask(ov, 0x67, qvga?0xb0:0x90, 0xf0); | |
2214 | i2c_w_mask(ov, 0x74, qvga?0x20:0x00, 0x20); | |
2215 | #endif | |
2216 | break; | |
2217 | case SEN_OV6620: | |
2218 | i2c_w(ov, 0x14, qvga?0x24:0x04); | |
2219 | break; | |
2220 | case SEN_OV6630: | |
2221 | i2c_w(ov, 0x14, qvga?0xa0:0x80); | |
2222 | break; | |
2223 | default: | |
2224 | err("Invalid sensor"); | |
2225 | return -EINVAL; | |
2226 | } | |
2227 | ||
2228 | /******** Palette-specific regs ********/ | |
2229 | ||
2230 | if (mode == VIDEO_PALETTE_GREY) { | |
2231 | if (ov->sensor == SEN_OV7610 || ov->sensor == SEN_OV76BE) { | |
2232 | /* these aren't valid on the OV6620/OV7620/6630? */ | |
2233 | i2c_w_mask(ov, 0x0e, 0x40, 0x40); | |
2234 | } | |
2235 | ||
2236 | if (ov->sensor == SEN_OV6630 && ov->bridge == BRG_OV518 | |
2237 | && ov518_color) { | |
2238 | i2c_w_mask(ov, 0x12, 0x00, 0x10); | |
2239 | i2c_w_mask(ov, 0x13, 0x00, 0x20); | |
2240 | } else { | |
2241 | i2c_w_mask(ov, 0x13, 0x20, 0x20); | |
2242 | } | |
2243 | } else { | |
2244 | if (ov->sensor == SEN_OV7610 || ov->sensor == SEN_OV76BE) { | |
2245 | /* not valid on the OV6620/OV7620/6630? */ | |
2246 | i2c_w_mask(ov, 0x0e, 0x00, 0x40); | |
2247 | } | |
2248 | ||
2249 | /* The OV518 needs special treatment. Although both the OV518 | |
2250 | * and the OV6630 support a 16-bit video bus, only the 8 bit Y | |
2251 | * bus is actually used. The UV bus is tied to ground. | |
2252 | * Therefore, the OV6630 needs to be in 8-bit multiplexed | |
2253 | * output mode */ | |
2254 | ||
2255 | if (ov->sensor == SEN_OV6630 && ov->bridge == BRG_OV518 | |
2256 | && ov518_color) { | |
2257 | i2c_w_mask(ov, 0x12, 0x10, 0x10); | |
2258 | i2c_w_mask(ov, 0x13, 0x20, 0x20); | |
2259 | } else { | |
2260 | i2c_w_mask(ov, 0x13, 0x00, 0x20); | |
2261 | } | |
2262 | } | |
2263 | ||
2264 | /******** Clock programming ********/ | |
2265 | ||
2266 | /* The OV6620 needs special handling. This prevents the | |
2267 | * severe banding that normally occurs */ | |
2268 | if (ov->sensor == SEN_OV6620 || ov->sensor == SEN_OV6630) | |
2269 | { | |
2270 | /* Clock down */ | |
2271 | ||
2272 | i2c_w(ov, 0x2a, 0x04); | |
2273 | ||
2274 | if (ov->compress) { | |
2275 | // clock = 0; /* This ensures the highest frame rate */ | |
2276 | clock = 3; | |
2277 | } else if (clockdiv == -1) { /* If user didn't override it */ | |
2278 | clock = 3; /* Gives better exposure time */ | |
2279 | } else { | |
2280 | clock = clockdiv; | |
2281 | } | |
2282 | ||
2283 | PDEBUG(4, "Setting clock divisor to %d", clock); | |
2284 | ||
2285 | i2c_w(ov, 0x11, clock); | |
2286 | ||
2287 | i2c_w(ov, 0x2a, 0x84); | |
2288 | /* This next setting is critical. It seems to improve | |
2289 | * the gain or the contrast. The "reserved" bits seem | |
2290 | * to have some effect in this case. */ | |
2291 | i2c_w(ov, 0x2d, 0x85); | |
2292 | } | |
2293 | else | |
2294 | { | |
2295 | if (ov->compress) { | |
2296 | clock = 1; /* This ensures the highest frame rate */ | |
2297 | } else if (clockdiv == -1) { /* If user didn't override it */ | |
2298 | /* Calculate and set the clock divisor */ | |
2299 | clock = ((sub_flag ? ov->subw * ov->subh | |
2300 | : width * height) | |
2301 | * (mode == VIDEO_PALETTE_GREY ? 2 : 3) / 2) | |
2302 | / 66000; | |
2303 | } else { | |
2304 | clock = clockdiv; | |
2305 | } | |
2306 | ||
2307 | PDEBUG(4, "Setting clock divisor to %d", clock); | |
2308 | ||
2309 | i2c_w(ov, 0x11, clock); | |
2310 | } | |
2311 | ||
2312 | /******** Special Features ********/ | |
2313 | ||
2314 | if (framedrop >= 0) | |
2315 | i2c_w(ov, 0x16, framedrop); | |
2316 | ||
2317 | /* Test Pattern */ | |
2318 | i2c_w_mask(ov, 0x12, (testpat?0x02:0x00), 0x02); | |
2319 | ||
2320 | /* Enable auto white balance */ | |
2321 | i2c_w_mask(ov, 0x12, 0x04, 0x04); | |
2322 | ||
2323 | // This will go away as soon as ov51x_mode_init_sensor_regs() | |
2324 | // is fully tested. | |
2325 | /* 7620/6620/6630? don't have register 0x35, so play it safe */ | |
2326 | if (ov->sensor == SEN_OV7610 || ov->sensor == SEN_OV76BE) { | |
2327 | if (width == 640 && height == 480) | |
2328 | i2c_w(ov, 0x35, 0x9e); | |
2329 | else | |
2330 | i2c_w(ov, 0x35, 0x1e); | |
2331 | } | |
2332 | ||
2333 | return 0; | |
2334 | } | |
2335 | ||
2336 | static int | |
2337 | set_ov_sensor_window(struct usb_ov511 *ov, int width, int height, int mode, | |
2338 | int sub_flag) | |
2339 | { | |
2340 | int ret; | |
2341 | int hwsbase, hwebase, vwsbase, vwebase, hwsize, vwsize; | |
2342 | int hoffset, voffset, hwscale = 0, vwscale = 0; | |
2343 | ||
2344 | /* The different sensor ICs handle setting up of window differently. | |
2345 | * IF YOU SET IT WRONG, YOU WILL GET ALL ZERO ISOC DATA FROM OV51x!!! */ | |
2346 | switch (ov->sensor) { | |
2347 | case SEN_OV7610: | |
2348 | case SEN_OV76BE: | |
2349 | hwsbase = 0x38; | |
2350 | hwebase = 0x3a; | |
2351 | vwsbase = vwebase = 0x05; | |
2352 | break; | |
2353 | case SEN_OV6620: | |
2354 | case SEN_OV6630: | |
2355 | hwsbase = 0x38; | |
2356 | hwebase = 0x3a; | |
2357 | vwsbase = 0x05; | |
2358 | vwebase = 0x06; | |
2359 | break; | |
2360 | case SEN_OV7620: | |
2361 | hwsbase = 0x2f; /* From 7620.SET (spec is wrong) */ | |
2362 | hwebase = 0x2f; | |
2363 | vwsbase = vwebase = 0x05; | |
2364 | break; | |
2365 | default: | |
2366 | err("Invalid sensor"); | |
2367 | return -EINVAL; | |
2368 | } | |
2369 | ||
2370 | if (ov->sensor == SEN_OV6620 || ov->sensor == SEN_OV6630) { | |
2371 | /* Note: OV518(+) does downsample on its own) */ | |
2372 | if ((width > 176 && height > 144) | |
2373 | || ov->bclass == BCL_OV518) { /* CIF */ | |
2374 | ret = mode_init_ov_sensor_regs(ov, width, height, | |
2375 | mode, sub_flag, 0); | |
2376 | if (ret < 0) | |
2377 | return ret; | |
2378 | hwscale = 1; | |
2379 | vwscale = 1; /* The datasheet says 0; it's wrong */ | |
2380 | hwsize = 352; | |
2381 | vwsize = 288; | |
2382 | } else if (width > 176 || height > 144) { | |
2383 | err("Illegal dimensions"); | |
2384 | return -EINVAL; | |
2385 | } else { /* QCIF */ | |
2386 | ret = mode_init_ov_sensor_regs(ov, width, height, | |
2387 | mode, sub_flag, 1); | |
2388 | if (ret < 0) | |
2389 | return ret; | |
2390 | hwsize = 176; | |
2391 | vwsize = 144; | |
2392 | } | |
2393 | } else { | |
2394 | if (width > 320 && height > 240) { /* VGA */ | |
2395 | ret = mode_init_ov_sensor_regs(ov, width, height, | |
2396 | mode, sub_flag, 0); | |
2397 | if (ret < 0) | |
2398 | return ret; | |
2399 | hwscale = 2; | |
2400 | vwscale = 1; | |
2401 | hwsize = 640; | |
2402 | vwsize = 480; | |
2403 | } else if (width > 320 || height > 240) { | |
2404 | err("Illegal dimensions"); | |
2405 | return -EINVAL; | |
2406 | } else { /* QVGA */ | |
2407 | ret = mode_init_ov_sensor_regs(ov, width, height, | |
2408 | mode, sub_flag, 1); | |
2409 | if (ret < 0) | |
2410 | return ret; | |
2411 | hwscale = 1; | |
2412 | hwsize = 320; | |
2413 | vwsize = 240; | |
2414 | } | |
2415 | } | |
2416 | ||
2417 | /* Center the window */ | |
2418 | hoffset = ((hwsize - width) / 2) >> hwscale; | |
2419 | voffset = ((vwsize - height) / 2) >> vwscale; | |
2420 | ||
2421 | /* FIXME! - This needs to be changed to support 160x120 and 6620!!! */ | |
2422 | if (sub_flag) { | |
2423 | i2c_w(ov, 0x17, hwsbase+(ov->subx>>hwscale)); | |
2424 | i2c_w(ov, 0x18, hwebase+((ov->subx+ov->subw)>>hwscale)); | |
2425 | i2c_w(ov, 0x19, vwsbase+(ov->suby>>vwscale)); | |
2426 | i2c_w(ov, 0x1a, vwebase+((ov->suby+ov->subh)>>vwscale)); | |
2427 | } else { | |
2428 | i2c_w(ov, 0x17, hwsbase + hoffset); | |
2429 | i2c_w(ov, 0x18, hwebase + hoffset + (hwsize>>hwscale)); | |
2430 | i2c_w(ov, 0x19, vwsbase + voffset); | |
2431 | i2c_w(ov, 0x1a, vwebase + voffset + (vwsize>>vwscale)); | |
2432 | } | |
2433 | ||
2434 | #ifdef OV511_DEBUG | |
2435 | if (dump_sensor) | |
2436 | dump_i2c_regs(ov); | |
2437 | #endif | |
2438 | ||
2439 | return 0; | |
2440 | } | |
2441 | ||
2442 | /* Set up the OV511/OV511+ with the given image parameters. | |
2443 | * | |
2444 | * Do not put any sensor-specific code in here (including I2C I/O functions) | |
2445 | */ | |
2446 | static int | |
2447 | ov511_mode_init_regs(struct usb_ov511 *ov, | |
2448 | int width, int height, int mode, int sub_flag) | |
2449 | { | |
2450 | int hsegs, vsegs; | |
2451 | ||
2452 | if (sub_flag) { | |
2453 | width = ov->subw; | |
2454 | height = ov->subh; | |
2455 | } | |
2456 | ||
2457 | PDEBUG(3, "width:%d, height:%d, mode:%d, sub:%d", | |
2458 | width, height, mode, sub_flag); | |
2459 | ||
2460 | // FIXME: This should be moved to a 7111a-specific function once | |
2461 | // subcapture is dealt with properly | |
2462 | if (ov->sensor == SEN_SAA7111A) { | |
2463 | if (width == 320 && height == 240) { | |
2464 | /* No need to do anything special */ | |
2465 | } else if (width == 640 && height == 480) { | |
2466 | /* Set the OV511 up as 320x480, but keep the | |
2467 | * V4L resolution as 640x480 */ | |
2468 | width = 320; | |
2469 | } else { | |
2470 | err("SAA7111A only allows 320x240 or 640x480"); | |
2471 | return -EINVAL; | |
2472 | } | |
2473 | } | |
2474 | ||
2475 | /* Make sure width and height are a multiple of 8 */ | |
2476 | if (width % 8 || height % 8) { | |
2477 | err("Invalid size (%d, %d) (mode = %d)", width, height, mode); | |
2478 | return -EINVAL; | |
2479 | } | |
2480 | ||
2481 | if (width < ov->minwidth || height < ov->minheight) { | |
2482 | err("Requested dimensions are too small"); | |
2483 | return -EINVAL; | |
2484 | } | |
2485 | ||
2486 | if (ov51x_stop(ov) < 0) | |
2487 | return -EIO; | |
2488 | ||
2489 | if (mode == VIDEO_PALETTE_GREY) { | |
2490 | reg_w(ov, R511_CAM_UV_EN, 0x00); | |
2491 | reg_w(ov, R511_SNAP_UV_EN, 0x00); | |
2492 | reg_w(ov, R511_SNAP_OPTS, 0x01); | |
2493 | } else { | |
2494 | reg_w(ov, R511_CAM_UV_EN, 0x01); | |
2495 | reg_w(ov, R511_SNAP_UV_EN, 0x01); | |
2496 | reg_w(ov, R511_SNAP_OPTS, 0x03); | |
2497 | } | |
2498 | ||
2499 | /* Here I'm assuming that snapshot size == image size. | |
2500 | * I hope that's always true. --claudio | |
2501 | */ | |
2502 | hsegs = (width >> 3) - 1; | |
2503 | vsegs = (height >> 3) - 1; | |
2504 | ||
2505 | reg_w(ov, R511_CAM_PXCNT, hsegs); | |
2506 | reg_w(ov, R511_CAM_LNCNT, vsegs); | |
2507 | reg_w(ov, R511_CAM_PXDIV, 0x00); | |
2508 | reg_w(ov, R511_CAM_LNDIV, 0x00); | |
2509 | ||
2510 | /* YUV420, low pass filter on */ | |
2511 | reg_w(ov, R511_CAM_OPTS, 0x03); | |
2512 | ||
2513 | /* Snapshot additions */ | |
2514 | reg_w(ov, R511_SNAP_PXCNT, hsegs); | |
2515 | reg_w(ov, R511_SNAP_LNCNT, vsegs); | |
2516 | reg_w(ov, R511_SNAP_PXDIV, 0x00); | |
2517 | reg_w(ov, R511_SNAP_LNDIV, 0x00); | |
2518 | ||
2519 | if (ov->compress) { | |
2520 | /* Enable Y and UV quantization and compression */ | |
2521 | reg_w(ov, R511_COMP_EN, 0x07); | |
2522 | reg_w(ov, R511_COMP_LUT_EN, 0x03); | |
2523 | ov51x_reset(ov, OV511_RESET_OMNICE); | |
2524 | } | |
2525 | ||
2526 | if (ov51x_restart(ov) < 0) | |
2527 | return -EIO; | |
2528 | ||
2529 | return 0; | |
2530 | } | |
2531 | ||
2532 | /* Sets up the OV518/OV518+ with the given image parameters | |
2533 | * | |
2534 | * OV518 needs a completely different approach, until we can figure out what | |
2535 | * the individual registers do. Also, only 15 FPS is supported now. | |
2536 | * | |
2537 | * Do not put any sensor-specific code in here (including I2C I/O functions) | |
2538 | */ | |
2539 | static int | |
2540 | ov518_mode_init_regs(struct usb_ov511 *ov, | |
2541 | int width, int height, int mode, int sub_flag) | |
2542 | { | |
2543 | int hsegs, vsegs, hi_res; | |
2544 | ||
2545 | if (sub_flag) { | |
2546 | width = ov->subw; | |
2547 | height = ov->subh; | |
2548 | } | |
2549 | ||
2550 | PDEBUG(3, "width:%d, height:%d, mode:%d, sub:%d", | |
2551 | width, height, mode, sub_flag); | |
2552 | ||
2553 | if (width % 16 || height % 8) { | |
2554 | err("Invalid size (%d, %d)", width, height); | |
2555 | return -EINVAL; | |
2556 | } | |
2557 | ||
2558 | if (width < ov->minwidth || height < ov->minheight) { | |
2559 | err("Requested dimensions are too small"); | |
2560 | return -EINVAL; | |
2561 | } | |
2562 | ||
2563 | if (width >= 320 && height >= 240) { | |
2564 | hi_res = 1; | |
2565 | } else if (width >= 320 || height >= 240) { | |
2566 | err("Invalid width/height combination (%d, %d)", width, height); | |
2567 | return -EINVAL; | |
2568 | } else { | |
2569 | hi_res = 0; | |
2570 | } | |
2571 | ||
2572 | if (ov51x_stop(ov) < 0) | |
2573 | return -EIO; | |
2574 | ||
2575 | /******** Set the mode ********/ | |
2576 | ||
2577 | reg_w(ov, 0x2b, 0); | |
2578 | reg_w(ov, 0x2c, 0); | |
2579 | reg_w(ov, 0x2d, 0); | |
2580 | reg_w(ov, 0x2e, 0); | |
2581 | reg_w(ov, 0x3b, 0); | |
2582 | reg_w(ov, 0x3c, 0); | |
2583 | reg_w(ov, 0x3d, 0); | |
2584 | reg_w(ov, 0x3e, 0); | |
2585 | ||
2586 | if (ov->bridge == BRG_OV518 && ov518_color) { | |
2587 | /* OV518 needs U and V swapped */ | |
2588 | i2c_w_mask(ov, 0x15, 0x00, 0x01); | |
2589 | ||
2590 | if (mode == VIDEO_PALETTE_GREY) { | |
2591 | /* Set 16-bit input format (UV data are ignored) */ | |
2592 | reg_w_mask(ov, 0x20, 0x00, 0x08); | |
2593 | ||
2594 | /* Set 8-bit (4:0:0) output format */ | |
2595 | reg_w_mask(ov, 0x28, 0x00, 0xf0); | |
2596 | reg_w_mask(ov, 0x38, 0x00, 0xf0); | |
2597 | } else { | |
2598 | /* Set 8-bit (YVYU) input format */ | |
2599 | reg_w_mask(ov, 0x20, 0x08, 0x08); | |
2600 | ||
2601 | /* Set 12-bit (4:2:0) output format */ | |
2602 | reg_w_mask(ov, 0x28, 0x80, 0xf0); | |
2603 | reg_w_mask(ov, 0x38, 0x80, 0xf0); | |
2604 | } | |
2605 | } else { | |
2606 | reg_w(ov, 0x28, (mode == VIDEO_PALETTE_GREY) ? 0x00:0x80); | |
2607 | reg_w(ov, 0x38, (mode == VIDEO_PALETTE_GREY) ? 0x00:0x80); | |
2608 | } | |
2609 | ||
2610 | hsegs = width / 16; | |
2611 | vsegs = height / 4; | |
2612 | ||
2613 | reg_w(ov, 0x29, hsegs); | |
2614 | reg_w(ov, 0x2a, vsegs); | |
2615 | ||
2616 | reg_w(ov, 0x39, hsegs); | |
2617 | reg_w(ov, 0x3a, vsegs); | |
2618 | ||
2619 | /* Windows driver does this here; who knows why */ | |
2620 | reg_w(ov, 0x2f, 0x80); | |
2621 | ||
2622 | /******** Set the framerate (to 15 FPS) ********/ | |
2623 | ||
2624 | /* Mode independent, but framerate dependent, regs */ | |
2625 | reg_w(ov, 0x51, 0x02); /* Clock divider; lower==faster */ | |
2626 | reg_w(ov, 0x22, 0x18); | |
2627 | reg_w(ov, 0x23, 0xff); | |
2628 | ||
2629 | if (ov->bridge == BRG_OV518PLUS) | |
2630 | reg_w(ov, 0x21, 0x19); | |
2631 | else | |
2632 | reg_w(ov, 0x71, 0x19); /* Compression-related? */ | |
2633 | ||
2634 | // FIXME: Sensor-specific | |
2635 | /* Bit 5 is what matters here. Of course, it is "reserved" */ | |
2636 | i2c_w(ov, 0x54, 0x23); | |
2637 | ||
2638 | reg_w(ov, 0x2f, 0x80); | |
2639 | ||
2640 | if (ov->bridge == BRG_OV518PLUS) { | |
2641 | reg_w(ov, 0x24, 0x94); | |
2642 | reg_w(ov, 0x25, 0x90); | |
2643 | ov518_reg_w32(ov, 0xc4, 400, 2); /* 190h */ | |
2644 | ov518_reg_w32(ov, 0xc6, 540, 2); /* 21ch */ | |
2645 | ov518_reg_w32(ov, 0xc7, 540, 2); /* 21ch */ | |
2646 | ov518_reg_w32(ov, 0xc8, 108, 2); /* 6ch */ | |
2647 | ov518_reg_w32(ov, 0xca, 131098, 3); /* 2001ah */ | |
2648 | ov518_reg_w32(ov, 0xcb, 532, 2); /* 214h */ | |
2649 | ov518_reg_w32(ov, 0xcc, 2400, 2); /* 960h */ | |
2650 | ov518_reg_w32(ov, 0xcd, 32, 2); /* 20h */ | |
2651 | ov518_reg_w32(ov, 0xce, 608, 2); /* 260h */ | |
2652 | } else { | |
2653 | reg_w(ov, 0x24, 0x9f); | |
2654 | reg_w(ov, 0x25, 0x90); | |
2655 | ov518_reg_w32(ov, 0xc4, 400, 2); /* 190h */ | |
2656 | ov518_reg_w32(ov, 0xc6, 500, 2); /* 1f4h */ | |
2657 | ov518_reg_w32(ov, 0xc7, 500, 2); /* 1f4h */ | |
2658 | ov518_reg_w32(ov, 0xc8, 142, 2); /* 8eh */ | |
2659 | ov518_reg_w32(ov, 0xca, 131098, 3); /* 2001ah */ | |
2660 | ov518_reg_w32(ov, 0xcb, 532, 2); /* 214h */ | |
2661 | ov518_reg_w32(ov, 0xcc, 2000, 2); /* 7d0h */ | |
2662 | ov518_reg_w32(ov, 0xcd, 32, 2); /* 20h */ | |
2663 | ov518_reg_w32(ov, 0xce, 608, 2); /* 260h */ | |
2664 | } | |
2665 | ||
2666 | reg_w(ov, 0x2f, 0x80); | |
2667 | ||
2668 | if (ov51x_restart(ov) < 0) | |
2669 | return -EIO; | |
2670 | ||
2671 | /* Reset it just for good measure */ | |
2672 | if (ov51x_reset(ov, OV511_RESET_NOREGS) < 0) | |
2673 | return -EIO; | |
2674 | ||
2675 | return 0; | |
2676 | } | |
2677 | ||
2678 | /* This is a wrapper around the OV511, OV518, and sensor specific functions */ | |
2679 | static int | |
2680 | mode_init_regs(struct usb_ov511 *ov, | |
2681 | int width, int height, int mode, int sub_flag) | |
2682 | { | |
2683 | int rc = 0; | |
2684 | ||
2685 | if (!ov || !ov->dev) | |
2686 | return -EFAULT; | |
2687 | ||
2688 | if (ov->bclass == BCL_OV518) { | |
2689 | rc = ov518_mode_init_regs(ov, width, height, mode, sub_flag); | |
2690 | } else { | |
2691 | rc = ov511_mode_init_regs(ov, width, height, mode, sub_flag); | |
2692 | } | |
2693 | ||
2694 | if (FATAL_ERROR(rc)) | |
2695 | return rc; | |
2696 | ||
2697 | switch (ov->sensor) { | |
2698 | case SEN_OV7610: | |
2699 | case SEN_OV7620: | |
2700 | case SEN_OV76BE: | |
2701 | case SEN_OV8600: | |
2702 | case SEN_OV6620: | |
2703 | case SEN_OV6630: | |
2704 | rc = set_ov_sensor_window(ov, width, height, mode, sub_flag); | |
2705 | break; | |
2706 | case SEN_KS0127: | |
2707 | case SEN_KS0127B: | |
2708 | err("KS0127-series decoders not supported yet"); | |
2709 | rc = -EINVAL; | |
2710 | break; | |
2711 | case SEN_SAA7111A: | |
2712 | // rc = mode_init_saa_sensor_regs(ov, width, height, mode, | |
2713 | // sub_flag); | |
2714 | ||
2715 | PDEBUG(1, "SAA status = 0x%02X", i2c_r(ov, 0x1f)); | |
2716 | break; | |
2717 | default: | |
2718 | err("Unknown sensor"); | |
2719 | rc = -EINVAL; | |
2720 | } | |
2721 | ||
2722 | if (FATAL_ERROR(rc)) | |
2723 | return rc; | |
2724 | ||
2725 | /* Sensor-independent settings */ | |
2726 | rc = sensor_set_auto_brightness(ov, ov->auto_brt); | |
2727 | if (FATAL_ERROR(rc)) | |
2728 | return rc; | |
2729 | ||
2730 | rc = sensor_set_auto_exposure(ov, ov->auto_exp); | |
2731 | if (FATAL_ERROR(rc)) | |
2732 | return rc; | |
2733 | ||
2734 | rc = sensor_set_banding_filter(ov, bandingfilter); | |
2735 | if (FATAL_ERROR(rc)) | |
2736 | return rc; | |
2737 | ||
2738 | if (ov->lightfreq) { | |
2739 | rc = sensor_set_light_freq(ov, lightfreq); | |
2740 | if (FATAL_ERROR(rc)) | |
2741 | return rc; | |
2742 | } | |
2743 | ||
2744 | rc = sensor_set_backlight(ov, ov->backlight); | |
2745 | if (FATAL_ERROR(rc)) | |
2746 | return rc; | |
2747 | ||
2748 | rc = sensor_set_mirror(ov, ov->mirror); | |
2749 | if (FATAL_ERROR(rc)) | |
2750 | return rc; | |
2751 | ||
2752 | return 0; | |
2753 | } | |
2754 | ||
2755 | /* This sets the default image parameters. This is useful for apps that use | |
2756 | * read() and do not set these. | |
2757 | */ | |
2758 | static int | |
2759 | ov51x_set_default_params(struct usb_ov511 *ov) | |
2760 | { | |
2761 | int i; | |
2762 | ||
2763 | /* Set default sizes in case IOCTL (VIDIOCMCAPTURE) is not used | |
2764 | * (using read() instead). */ | |
2765 | for (i = 0; i < OV511_NUMFRAMES; i++) { | |
2766 | ov->frame[i].width = ov->maxwidth; | |
2767 | ov->frame[i].height = ov->maxheight; | |
2768 | ov->frame[i].bytes_read = 0; | |
2769 | if (force_palette) | |
2770 | ov->frame[i].format = force_palette; | |
2771 | else | |
2772 | ov->frame[i].format = VIDEO_PALETTE_YUV420; | |
2773 | ||
2774 | ov->frame[i].depth = get_depth(ov->frame[i].format); | |
2775 | } | |
2776 | ||
2777 | PDEBUG(3, "%dx%d, %s", ov->maxwidth, ov->maxheight, | |
2778 | symbolic(v4l1_plist, ov->frame[0].format)); | |
2779 | ||
2780 | /* Initialize to max width/height, YUV420 or RGB24 (if supported) */ | |
2781 | if (mode_init_regs(ov, ov->maxwidth, ov->maxheight, | |
2782 | ov->frame[0].format, 0) < 0) | |
2783 | return -EINVAL; | |
2784 | ||
2785 | return 0; | |
2786 | } | |
2787 | ||
2788 | /********************************************************************** | |
2789 | * | |
2790 | * Video decoder stuff | |
2791 | * | |
2792 | **********************************************************************/ | |
2793 | ||
2794 | /* Set analog input port of decoder */ | |
2795 | static int | |
2796 | decoder_set_input(struct usb_ov511 *ov, int input) | |
2797 | { | |
2798 | PDEBUG(4, "port %d", input); | |
2799 | ||
2800 | switch (ov->sensor) { | |
2801 | case SEN_SAA7111A: | |
2802 | { | |
2803 | /* Select mode */ | |
2804 | i2c_w_mask(ov, 0x02, input, 0x07); | |
2805 | /* Bypass chrominance trap for modes 4..7 */ | |
2806 | i2c_w_mask(ov, 0x09, (input > 3) ? 0x80:0x00, 0x80); | |
2807 | break; | |
2808 | } | |
2809 | default: | |
2810 | return -EINVAL; | |
2811 | } | |
2812 | ||
2813 | return 0; | |
2814 | } | |
2815 | ||
2816 | /* Get ASCII name of video input */ | |
2817 | static int | |
2818 | decoder_get_input_name(struct usb_ov511 *ov, int input, char *name) | |
2819 | { | |
2820 | switch (ov->sensor) { | |
2821 | case SEN_SAA7111A: | |
2822 | { | |
2823 | if (input < 0 || input > 7) | |
2824 | return -EINVAL; | |
2825 | else if (input < 4) | |
2826 | sprintf(name, "CVBS-%d", input); | |
2827 | else // if (input < 8) | |
2828 | sprintf(name, "S-Video-%d", input - 4); | |
2829 | break; | |
2830 | } | |
2831 | default: | |
2832 | sprintf(name, "%s", "Camera"); | |
2833 | } | |
2834 | ||
2835 | return 0; | |
2836 | } | |
2837 | ||
2838 | /* Set norm (NTSC, PAL, SECAM, AUTO) */ | |
2839 | static int | |
2840 | decoder_set_norm(struct usb_ov511 *ov, int norm) | |
2841 | { | |
2842 | PDEBUG(4, "%d", norm); | |
2843 | ||
2844 | switch (ov->sensor) { | |
2845 | case SEN_SAA7111A: | |
2846 | { | |
2847 | int reg_8, reg_e; | |
2848 | ||
2849 | if (norm == VIDEO_MODE_NTSC) { | |
2850 | reg_8 = 0x40; /* 60 Hz */ | |
2851 | reg_e = 0x00; /* NTSC M / PAL BGHI */ | |
2852 | } else if (norm == VIDEO_MODE_PAL) { | |
2853 | reg_8 = 0x00; /* 50 Hz */ | |
2854 | reg_e = 0x00; /* NTSC M / PAL BGHI */ | |
2855 | } else if (norm == VIDEO_MODE_AUTO) { | |
2856 | reg_8 = 0x80; /* Auto field detect */ | |
2857 | reg_e = 0x00; /* NTSC M / PAL BGHI */ | |
2858 | } else if (norm == VIDEO_MODE_SECAM) { | |
2859 | reg_8 = 0x00; /* 50 Hz */ | |
2860 | reg_e = 0x50; /* SECAM / PAL 4.43 */ | |
2861 | } else { | |
2862 | return -EINVAL; | |
2863 | } | |
2864 | ||
2865 | i2c_w_mask(ov, 0x08, reg_8, 0xc0); | |
2866 | i2c_w_mask(ov, 0x0e, reg_e, 0x70); | |
2867 | break; | |
2868 | } | |
2869 | default: | |
2870 | return -EINVAL; | |
2871 | } | |
2872 | ||
2873 | return 0; | |
2874 | } | |
2875 | ||
2876 | /********************************************************************** | |
2877 | * | |
2878 | * Raw data parsing | |
2879 | * | |
2880 | **********************************************************************/ | |
2881 | ||
2882 | /* Copies a 64-byte segment at pIn to an 8x8 block at pOut. The width of the | |
2883 | * image at pOut is specified by w. | |
2884 | */ | |
2885 | static inline void | |
2886 | make_8x8(unsigned char *pIn, unsigned char *pOut, int w) | |
2887 | { | |
2888 | unsigned char *pOut1 = pOut; | |
2889 | int x, y; | |
2890 | ||
2891 | for (y = 0; y < 8; y++) { | |
2892 | pOut1 = pOut; | |
2893 | for (x = 0; x < 8; x++) { | |
2894 | *pOut1++ = *pIn++; | |
2895 | } | |
2896 | pOut += w; | |
2897 | } | |
2898 | } | |
2899 | ||
2900 | /* | |
2901 | * For RAW BW (YUV 4:0:0) images, data show up in 256 byte segments. | |
2902 | * The segments represent 4 squares of 8x8 pixels as follows: | |
2903 | * | |
2904 | * 0 1 ... 7 64 65 ... 71 ... 192 193 ... 199 | |
2905 | * 8 9 ... 15 72 73 ... 79 200 201 ... 207 | |
2906 | * ... ... ... | |
2907 | * 56 57 ... 63 120 121 ... 127 248 249 ... 255 | |
2908 | * | |
2909 | */ | |
2910 | static void | |
2911 | yuv400raw_to_yuv400p(struct ov511_frame *frame, | |
2912 | unsigned char *pIn0, unsigned char *pOut0) | |
2913 | { | |
2914 | int x, y; | |
2915 | unsigned char *pIn, *pOut, *pOutLine; | |
2916 | ||
2917 | /* Copy Y */ | |
2918 | pIn = pIn0; | |
2919 | pOutLine = pOut0; | |
2920 | for (y = 0; y < frame->rawheight - 1; y += 8) { | |
2921 | pOut = pOutLine; | |
2922 | for (x = 0; x < frame->rawwidth - 1; x += 8) { | |
2923 | make_8x8(pIn, pOut, frame->rawwidth); | |
2924 | pIn += 64; | |
2925 | pOut += 8; | |
2926 | } | |
2927 | pOutLine += 8 * frame->rawwidth; | |
2928 | } | |
2929 | } | |
2930 | ||
2931 | /* | |
2932 | * For YUV 4:2:0 images, the data show up in 384 byte segments. | |
2933 | * The first 64 bytes of each segment are U, the next 64 are V. The U and | |
2934 | * V are arranged as follows: | |
2935 | * | |
2936 | * 0 1 ... 7 | |
2937 | * 8 9 ... 15 | |
2938 | * ... | |
2939 | * 56 57 ... 63 | |
2940 | * | |
2941 | * U and V are shipped at half resolution (1 U,V sample -> one 2x2 block). | |
2942 | * | |
2943 | * The next 256 bytes are full resolution Y data and represent 4 squares | |
2944 | * of 8x8 pixels as follows: | |
2945 | * | |
2946 | * 0 1 ... 7 64 65 ... 71 ... 192 193 ... 199 | |
2947 | * 8 9 ... 15 72 73 ... 79 200 201 ... 207 | |
2948 | * ... ... ... | |
2949 | * 56 57 ... 63 120 121 ... 127 ... 248 249 ... 255 | |
2950 | * | |
2951 | * Note that the U and V data in one segment represent a 16 x 16 pixel | |
2952 | * area, but the Y data represent a 32 x 8 pixel area. If the width is not an | |
2953 | * even multiple of 32, the extra 8x8 blocks within a 32x8 block belong to the | |
2954 | * next horizontal stripe. | |
2955 | * | |
2956 | * If dumppix module param is set, _parse_data just dumps the incoming segments, | |
2957 | * verbatim, in order, into the frame. When used with vidcat -f ppm -s 640x480 | |
2958 | * this puts the data on the standard output and can be analyzed with the | |
2959 | * parseppm.c utility I wrote. That's a much faster way for figuring out how | |
2960 | * these data are scrambled. | |
2961 | */ | |
2962 | ||
2963 | /* Converts from raw, uncompressed segments at pIn0 to a YUV420P frame at pOut0. | |
2964 | * | |
2965 | * FIXME: Currently only handles width and height that are multiples of 16 | |
2966 | */ | |
2967 | static void | |
2968 | yuv420raw_to_yuv420p(struct ov511_frame *frame, | |
2969 | unsigned char *pIn0, unsigned char *pOut0) | |
2970 | { | |
2971 | int k, x, y; | |
2972 | unsigned char *pIn, *pOut, *pOutLine; | |
2973 | const unsigned int a = frame->rawwidth * frame->rawheight; | |
2974 | const unsigned int w = frame->rawwidth / 2; | |
2975 | ||
2976 | /* Copy U and V */ | |
2977 | pIn = pIn0; | |
2978 | pOutLine = pOut0 + a; | |
2979 | for (y = 0; y < frame->rawheight - 1; y += 16) { | |
2980 | pOut = pOutLine; | |
2981 | for (x = 0; x < frame->rawwidth - 1; x += 16) { | |
2982 | make_8x8(pIn, pOut, w); | |
2983 | make_8x8(pIn + 64, pOut + a/4, w); | |
2984 | pIn += 384; | |
2985 | pOut += 8; | |
2986 | } | |
2987 | pOutLine += 8 * w; | |
2988 | } | |
2989 | ||
2990 | /* Copy Y */ | |
2991 | pIn = pIn0 + 128; | |
2992 | pOutLine = pOut0; | |
2993 | k = 0; | |
2994 | for (y = 0; y < frame->rawheight - 1; y += 8) { | |
2995 | pOut = pOutLine; | |
2996 | for (x = 0; x < frame->rawwidth - 1; x += 8) { | |
2997 | make_8x8(pIn, pOut, frame->rawwidth); | |
2998 | pIn += 64; | |
2999 | pOut += 8; | |
3000 | if ((++k) > 3) { | |
3001 | k = 0; | |
3002 | pIn += 128; | |
3003 | } | |
3004 | } | |
3005 | pOutLine += 8 * frame->rawwidth; | |
3006 | } | |
3007 | } | |
3008 | ||
3009 | /********************************************************************** | |
3010 | * | |
3011 | * Decompression | |
3012 | * | |
3013 | **********************************************************************/ | |
3014 | ||
3015 | /* Chooses a decompression module, locks it, and sets ov->decomp_ops | |
3016 | * accordingly. Returns -ENXIO if decompressor is not available, otherwise | |
3017 | * returns 0 if no other error. | |
3018 | */ | |
3019 | static int | |
3020 | request_decompressor(struct usb_ov511 *ov) | |
3021 | { | |
3022 | if (!ov) | |
3023 | return -ENODEV; | |
3024 | ||
3025 | if (ov->decomp_ops) { | |
3026 | err("ERROR: Decompressor already requested!"); | |
3027 | return -EINVAL; | |
3028 | } | |
3029 | ||
3030 | lock_kernel(); | |
3031 | ||
3032 | /* Try to get MMX, and fall back on no-MMX if necessary */ | |
3033 | if (ov->bclass == BCL_OV511) { | |
3034 | if (ov511_mmx_decomp_ops) { | |
3035 | PDEBUG(3, "Using OV511 MMX decompressor"); | |
3036 | ov->decomp_ops = ov511_mmx_decomp_ops; | |
3037 | } else if (ov511_decomp_ops) { | |
3038 | PDEBUG(3, "Using OV511 decompressor"); | |
3039 | ov->decomp_ops = ov511_decomp_ops; | |
3040 | } else { | |
3041 | err("No decompressor available"); | |
3042 | } | |
3043 | } else if (ov->bclass == BCL_OV518) { | |
3044 | if (ov518_mmx_decomp_ops) { | |
3045 | PDEBUG(3, "Using OV518 MMX decompressor"); | |
3046 | ov->decomp_ops = ov518_mmx_decomp_ops; | |
3047 | } else if (ov518_decomp_ops) { | |
3048 | PDEBUG(3, "Using OV518 decompressor"); | |
3049 | ov->decomp_ops = ov518_decomp_ops; | |
3050 | } else { | |
3051 | err("No decompressor available"); | |
3052 | } | |
3053 | } else { | |
3054 | err("Unknown bridge"); | |
3055 | } | |
3056 | ||
3057 | if (!ov->decomp_ops) | |
3058 | goto nosys; | |
3059 | ||
3060 | if (!ov->decomp_ops->owner) { | |
3061 | ov->decomp_ops = NULL; | |
3062 | goto nosys; | |
3063 | } | |
3064 | ||
3065 | if (!try_module_get(ov->decomp_ops->owner)) | |
3066 | goto nosys; | |
3067 | ||
3068 | unlock_kernel(); | |
3069 | return 0; | |
3070 | ||
3071 | nosys: | |
3072 | unlock_kernel(); | |
3073 | return -ENOSYS; | |
3074 | } | |
3075 | ||
3076 | /* Unlocks decompression module and nulls ov->decomp_ops. Safe to call even | |
3077 | * if ov->decomp_ops is NULL. | |
3078 | */ | |
3079 | static void | |
3080 | release_decompressor(struct usb_ov511 *ov) | |
3081 | { | |
3082 | int released = 0; /* Did we actually do anything? */ | |
3083 | ||
3084 | if (!ov) | |
3085 | return; | |
3086 | ||
3087 | lock_kernel(); | |
3088 | ||
3089 | if (ov->decomp_ops) { | |
3090 | module_put(ov->decomp_ops->owner); | |
3091 | released = 1; | |
3092 | } | |
3093 | ||
3094 | ov->decomp_ops = NULL; | |
3095 | ||
3096 | unlock_kernel(); | |
3097 | ||
3098 | if (released) | |
3099 | PDEBUG(3, "Decompressor released"); | |
3100 | } | |
3101 | ||
3102 | static void | |
3103 | decompress(struct usb_ov511 *ov, struct ov511_frame *frame, | |
3104 | unsigned char *pIn0, unsigned char *pOut0) | |
3105 | { | |
3106 | if (!ov->decomp_ops) | |
3107 | if (request_decompressor(ov)) | |
3108 | return; | |
3109 | ||
3110 | PDEBUG(4, "Decompressing %d bytes", frame->bytes_recvd); | |
3111 | ||
3112 | if (frame->format == VIDEO_PALETTE_GREY | |
3113 | && ov->decomp_ops->decomp_400) { | |
3114 | int ret = ov->decomp_ops->decomp_400( | |
3115 | pIn0, | |
3116 | pOut0, | |
3117 | frame->compbuf, | |
3118 | frame->rawwidth, | |
3119 | frame->rawheight, | |
3120 | frame->bytes_recvd); | |
3121 | PDEBUG(4, "DEBUG: decomp_400 returned %d", ret); | |
3122 | } else if (frame->format != VIDEO_PALETTE_GREY | |
3123 | && ov->decomp_ops->decomp_420) { | |
3124 | int ret = ov->decomp_ops->decomp_420( | |
3125 | pIn0, | |
3126 | pOut0, | |
3127 | frame->compbuf, | |
3128 | frame->rawwidth, | |
3129 | frame->rawheight, | |
3130 | frame->bytes_recvd); | |
3131 | PDEBUG(4, "DEBUG: decomp_420 returned %d", ret); | |
3132 | } else { | |
3133 | err("Decompressor does not support this format"); | |
3134 | } | |
3135 | } | |
3136 | ||
3137 | /********************************************************************** | |
3138 | * | |
3139 | * Format conversion | |
3140 | * | |
3141 | **********************************************************************/ | |
3142 | ||
3143 | /* Fuses even and odd fields together, and doubles width. | |
3144 | * INPUT: an odd field followed by an even field at pIn0, in YUV planar format | |
3145 | * OUTPUT: a normal YUV planar image, with correct aspect ratio | |
3146 | */ | |
3147 | static void | |
3148 | deinterlace(struct ov511_frame *frame, int rawformat, | |
3149 | unsigned char *pIn0, unsigned char *pOut0) | |
3150 | { | |
3151 | const int fieldheight = frame->rawheight / 2; | |
3152 | const int fieldpix = fieldheight * frame->rawwidth; | |
3153 | const int w = frame->width; | |
3154 | int x, y; | |
3155 | unsigned char *pInEven, *pInOdd, *pOut; | |
3156 | ||
3157 | PDEBUG(5, "fieldheight=%d", fieldheight); | |
3158 | ||
3159 | if (frame->rawheight != frame->height) { | |
3160 | err("invalid height"); | |
3161 | return; | |
3162 | } | |
3163 | ||
3164 | if ((frame->rawwidth * 2) != frame->width) { | |
3165 | err("invalid width"); | |
3166 | return; | |
3167 | } | |
3168 | ||
3169 | /* Y */ | |
3170 | pInOdd = pIn0; | |
3171 | pInEven = pInOdd + fieldpix; | |
3172 | pOut = pOut0; | |
3173 | for (y = 0; y < fieldheight; y++) { | |
3174 | for (x = 0; x < frame->rawwidth; x++) { | |
3175 | *pOut = *pInEven; | |
3176 | *(pOut+1) = *pInEven++; | |
3177 | *(pOut+w) = *pInOdd; | |
3178 | *(pOut+w+1) = *pInOdd++; | |
3179 | pOut += 2; | |
3180 | } | |
3181 | pOut += w; | |
3182 | } | |
3183 | ||
3184 | if (rawformat == RAWFMT_YUV420) { | |
3185 | /* U */ | |
3186 | pInOdd = pIn0 + fieldpix * 2; | |
3187 | pInEven = pInOdd + fieldpix / 4; | |
3188 | for (y = 0; y < fieldheight / 2; y++) { | |
3189 | for (x = 0; x < frame->rawwidth / 2; x++) { | |
3190 | *pOut = *pInEven; | |
3191 | *(pOut+1) = *pInEven++; | |
3192 | *(pOut+w/2) = *pInOdd; | |
3193 | *(pOut+w/2+1) = *pInOdd++; | |
3194 | pOut += 2; | |
3195 | } | |
3196 | pOut += w/2; | |
3197 | } | |
3198 | /* V */ | |
3199 | pInOdd = pIn0 + fieldpix * 2 + fieldpix / 2; | |
3200 | pInEven = pInOdd + fieldpix / 4; | |
3201 | for (y = 0; y < fieldheight / 2; y++) { | |
3202 | for (x = 0; x < frame->rawwidth / 2; x++) { | |
3203 | *pOut = *pInEven; | |
3204 | *(pOut+1) = *pInEven++; | |
3205 | *(pOut+w/2) = *pInOdd; | |
3206 | *(pOut+w/2+1) = *pInOdd++; | |
3207 | pOut += 2; | |
3208 | } | |
3209 | pOut += w/2; | |
3210 | } | |
3211 | } | |
3212 | } | |
3213 | ||
3214 | static void | |
3215 | ov51x_postprocess_grey(struct usb_ov511 *ov, struct ov511_frame *frame) | |
3216 | { | |
3217 | /* Deinterlace frame, if necessary */ | |
3218 | if (ov->sensor == SEN_SAA7111A && frame->rawheight >= 480) { | |
3219 | if (frame->compressed) | |
3220 | decompress(ov, frame, frame->rawdata, | |
3221 | frame->tempdata); | |
3222 | else | |
3223 | yuv400raw_to_yuv400p(frame, frame->rawdata, | |
3224 | frame->tempdata); | |
3225 | ||
3226 | deinterlace(frame, RAWFMT_YUV400, frame->tempdata, | |
3227 | frame->data); | |
3228 | } else { | |
3229 | if (frame->compressed) | |
3230 | decompress(ov, frame, frame->rawdata, | |
3231 | frame->data); | |
3232 | else | |
3233 | yuv400raw_to_yuv400p(frame, frame->rawdata, | |
3234 | frame->data); | |
3235 | } | |
3236 | } | |
3237 | ||
3238 | /* Process raw YUV420 data into standard YUV420P */ | |
3239 | static void | |
3240 | ov51x_postprocess_yuv420(struct usb_ov511 *ov, struct ov511_frame *frame) | |
3241 | { | |
3242 | /* Deinterlace frame, if necessary */ | |
3243 | if (ov->sensor == SEN_SAA7111A && frame->rawheight >= 480) { | |
3244 | if (frame->compressed) | |
3245 | decompress(ov, frame, frame->rawdata, frame->tempdata); | |
3246 | else | |
3247 | yuv420raw_to_yuv420p(frame, frame->rawdata, | |
3248 | frame->tempdata); | |
3249 | ||
3250 | deinterlace(frame, RAWFMT_YUV420, frame->tempdata, | |
3251 | frame->data); | |
3252 | } else { | |
3253 | if (frame->compressed) | |
3254 | decompress(ov, frame, frame->rawdata, frame->data); | |
3255 | else | |
3256 | yuv420raw_to_yuv420p(frame, frame->rawdata, | |
3257 | frame->data); | |
3258 | } | |
3259 | } | |
3260 | ||
3261 | /* Post-processes the specified frame. This consists of: | |
3262 | * 1. Decompress frame, if necessary | |
3263 | * 2. Deinterlace frame and scale to proper size, if necessary | |
3264 | * 3. Convert from YUV planar to destination format, if necessary | |
3265 | * 4. Fix the RGB offset, if necessary | |
3266 | */ | |
3267 | static void | |
3268 | ov51x_postprocess(struct usb_ov511 *ov, struct ov511_frame *frame) | |
3269 | { | |
3270 | if (dumppix) { | |
3271 | memset(frame->data, 0, | |
3272 | MAX_DATA_SIZE(ov->maxwidth, ov->maxheight)); | |
3273 | PDEBUG(4, "Dumping %d bytes", frame->bytes_recvd); | |
3274 | memcpy(frame->data, frame->rawdata, frame->bytes_recvd); | |
3275 | } else { | |
3276 | switch (frame->format) { | |
3277 | case VIDEO_PALETTE_GREY: | |
3278 | ov51x_postprocess_grey(ov, frame); | |
3279 | break; | |
3280 | case VIDEO_PALETTE_YUV420: | |
3281 | case VIDEO_PALETTE_YUV420P: | |
3282 | ov51x_postprocess_yuv420(ov, frame); | |
3283 | break; | |
3284 | default: | |
3285 | err("Cannot convert data to %s", | |
3286 | symbolic(v4l1_plist, frame->format)); | |
3287 | } | |
3288 | } | |
3289 | } | |
3290 | ||
3291 | /********************************************************************** | |
3292 | * | |
3293 | * OV51x data transfer, IRQ handler | |
3294 | * | |
3295 | **********************************************************************/ | |
3296 | ||
3297 | static inline void | |
3298 | ov511_move_data(struct usb_ov511 *ov, unsigned char *in, int n) | |
3299 | { | |
3300 | int num, offset; | |
3301 | int pnum = in[ov->packet_size - 1]; /* Get packet number */ | |
3302 | int max_raw = MAX_RAW_DATA_SIZE(ov->maxwidth, ov->maxheight); | |
3303 | struct ov511_frame *frame = &ov->frame[ov->curframe]; | |
3304 | struct timeval *ts; | |
3305 | ||
3306 | /* SOF/EOF packets have 1st to 8th bytes zeroed and the 9th | |
3307 | * byte non-zero. The EOF packet has image width/height in the | |
3308 | * 10th and 11th bytes. The 9th byte is given as follows: | |
3309 | * | |
3310 | * bit 7: EOF | |
3311 | * 6: compression enabled | |
3312 | * 5: 422/420/400 modes | |
3313 | * 4: 422/420/400 modes | |
3314 | * 3: 1 | |
3315 | * 2: snapshot button on | |
3316 | * 1: snapshot frame | |
3317 | * 0: even/odd field | |
3318 | */ | |
3319 | ||
3320 | if (printph) { | |
3321 | info("ph(%3d): %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x", | |
3322 | pnum, in[0], in[1], in[2], in[3], in[4], in[5], in[6], | |
3323 | in[7], in[8], in[9], in[10], in[11]); | |
3324 | } | |
3325 | ||
3326 | /* Check for SOF/EOF packet */ | |
3327 | if ((in[0] | in[1] | in[2] | in[3] | in[4] | in[5] | in[6] | in[7]) || | |
3328 | (~in[8] & 0x08)) | |
3329 | goto check_middle; | |
3330 | ||
3331 | /* Frame end */ | |
3332 | if (in[8] & 0x80) { | |
3333 | ts = (struct timeval *)(frame->data | |
3334 | + MAX_FRAME_SIZE(ov->maxwidth, ov->maxheight)); | |
3335 | do_gettimeofday(ts); | |
3336 | ||
3337 | /* Get the actual frame size from the EOF header */ | |
3338 | frame->rawwidth = ((int)(in[9]) + 1) * 8; | |
3339 | frame->rawheight = ((int)(in[10]) + 1) * 8; | |
3340 | ||
3341 | PDEBUG(4, "Frame end, frame=%d, pnum=%d, w=%d, h=%d, recvd=%d", | |
3342 | ov->curframe, pnum, frame->rawwidth, frame->rawheight, | |
3343 | frame->bytes_recvd); | |
3344 | ||
3345 | /* Validate the header data */ | |
3346 | RESTRICT_TO_RANGE(frame->rawwidth, ov->minwidth, ov->maxwidth); | |
3347 | RESTRICT_TO_RANGE(frame->rawheight, ov->minheight, | |
3348 | ov->maxheight); | |
3349 | ||
3350 | /* Don't allow byte count to exceed buffer size */ | |
3351 | RESTRICT_TO_RANGE(frame->bytes_recvd, 8, max_raw); | |
3352 | ||
3353 | if (frame->scanstate == STATE_LINES) { | |
3354 | int nextf; | |
3355 | ||
3356 | frame->grabstate = FRAME_DONE; | |
3357 | wake_up_interruptible(&frame->wq); | |
3358 | ||
3359 | /* If next frame is ready or grabbing, | |
3360 | * point to it */ | |
3361 | nextf = (ov->curframe + 1) % OV511_NUMFRAMES; | |
3362 | if (ov->frame[nextf].grabstate == FRAME_READY | |
3363 | || ov->frame[nextf].grabstate == FRAME_GRABBING) { | |
3364 | ov->curframe = nextf; | |
3365 | ov->frame[nextf].scanstate = STATE_SCANNING; | |
3366 | } else { | |
3367 | if (frame->grabstate == FRAME_DONE) { | |
3368 | PDEBUG(4, "** Frame done **"); | |
3369 | } else { | |
3370 | PDEBUG(4, "Frame not ready? state = %d", | |
3371 | ov->frame[nextf].grabstate); | |
3372 | } | |
3373 | ||
3374 | ov->curframe = -1; | |
3375 | } | |
3376 | } else { | |
3377 | PDEBUG(5, "Frame done, but not scanning"); | |
3378 | } | |
3379 | /* Image corruption caused by misplaced frame->segment = 0 | |
3380 | * fixed by carlosf@conectiva.com.br | |
3381 | */ | |
3382 | } else { | |
3383 | /* Frame start */ | |
3384 | PDEBUG(4, "Frame start, framenum = %d", ov->curframe); | |
3385 | ||
3386 | /* Check to see if it's a snapshot frame */ | |
3387 | /* FIXME?? Should the snapshot reset go here? Performance? */ | |
3388 | if (in[8] & 0x02) { | |
3389 | frame->snapshot = 1; | |
3390 | PDEBUG(3, "snapshot detected"); | |
3391 | } | |
3392 | ||
3393 | frame->scanstate = STATE_LINES; | |
3394 | frame->bytes_recvd = 0; | |
3395 | frame->compressed = in[8] & 0x40; | |
3396 | } | |
3397 | ||
3398 | check_middle: | |
3399 | /* Are we in a frame? */ | |
3400 | if (frame->scanstate != STATE_LINES) { | |
3401 | PDEBUG(5, "Not in a frame; packet skipped"); | |
3402 | return; | |
3403 | } | |
3404 | ||
3405 | /* If frame start, skip header */ | |
3406 | if (frame->bytes_recvd == 0) | |
3407 | offset = 9; | |
3408 | else | |
3409 | offset = 0; | |
3410 | ||
3411 | num = n - offset - 1; | |
3412 | ||
3413 | /* Dump all data exactly as received */ | |
3414 | if (dumppix == 2) { | |
3415 | frame->bytes_recvd += n - 1; | |
3416 | if (frame->bytes_recvd <= max_raw) | |
3417 | memcpy(frame->rawdata + frame->bytes_recvd - (n - 1), | |
3418 | in, n - 1); | |
3419 | else | |
3420 | PDEBUG(3, "Raw data buffer overrun!! (%d)", | |
3421 | frame->bytes_recvd - max_raw); | |
3422 | } else if (!frame->compressed && !remove_zeros) { | |
3423 | frame->bytes_recvd += num; | |
3424 | if (frame->bytes_recvd <= max_raw) | |
3425 | memcpy(frame->rawdata + frame->bytes_recvd - num, | |
3426 | in + offset, num); | |
3427 | else | |
3428 | PDEBUG(3, "Raw data buffer overrun!! (%d)", | |
3429 | frame->bytes_recvd - max_raw); | |
3430 | } else { /* Remove all-zero FIFO lines (aligned 32-byte blocks) */ | |
3431 | int b, read = 0, allzero, copied = 0; | |
3432 | if (offset) { | |
3433 | frame->bytes_recvd += 32 - offset; // Bytes out | |
3434 | memcpy(frame->rawdata, in + offset, 32 - offset); | |
3435 | read += 32; | |
3436 | } | |
3437 | ||
3438 | while (read < n - 1) { | |
3439 | allzero = 1; | |
3440 | for (b = 0; b < 32; b++) { | |
3441 | if (in[read + b]) { | |
3442 | allzero = 0; | |
3443 | break; | |
3444 | } | |
3445 | } | |
3446 | ||
3447 | if (allzero) { | |
3448 | /* Don't copy it */ | |
3449 | } else { | |
3450 | if (frame->bytes_recvd + copied + 32 <= max_raw) | |
3451 | { | |
3452 | memcpy(frame->rawdata | |
3453 | + frame->bytes_recvd + copied, | |
3454 | in + read, 32); | |
3455 | copied += 32; | |
3456 | } else { | |
3457 | PDEBUG(3, "Raw data buffer overrun!!"); | |
3458 | } | |
3459 | } | |
3460 | read += 32; | |
3461 | } | |
3462 | ||
3463 | frame->bytes_recvd += copied; | |
3464 | } | |
3465 | } | |
3466 | ||
3467 | static inline void | |
3468 | ov518_move_data(struct usb_ov511 *ov, unsigned char *in, int n) | |
3469 | { | |
3470 | int max_raw = MAX_RAW_DATA_SIZE(ov->maxwidth, ov->maxheight); | |
3471 | struct ov511_frame *frame = &ov->frame[ov->curframe]; | |
3472 | struct timeval *ts; | |
3473 | ||
3474 | /* Don't copy the packet number byte */ | |
3475 | if (ov->packet_numbering) | |
3476 | --n; | |
3477 | ||
3478 | /* A false positive here is likely, until OVT gives me | |
3479 | * the definitive SOF/EOF format */ | |
3480 | if ((!(in[0] | in[1] | in[2] | in[3] | in[5])) && in[6]) { | |
3481 | if (printph) { | |
3482 | info("ph: %2x %2x %2x %2x %2x %2x %2x %2x", in[0], | |
3483 | in[1], in[2], in[3], in[4], in[5], in[6], in[7]); | |
3484 | } | |
3485 | ||
3486 | if (frame->scanstate == STATE_LINES) { | |
3487 | PDEBUG(4, "Detected frame end/start"); | |
3488 | goto eof; | |
3489 | } else { //scanstate == STATE_SCANNING | |
3490 | /* Frame start */ | |
3491 | PDEBUG(4, "Frame start, framenum = %d", ov->curframe); | |
3492 | goto sof; | |
3493 | } | |
3494 | } else { | |
3495 | goto check_middle; | |
3496 | } | |
3497 | ||
3498 | eof: | |
3499 | ts = (struct timeval *)(frame->data | |
3500 | + MAX_FRAME_SIZE(ov->maxwidth, ov->maxheight)); | |
3501 | do_gettimeofday(ts); | |
3502 | ||
3503 | PDEBUG(4, "Frame end, curframe = %d, hw=%d, vw=%d, recvd=%d", | |
3504 | ov->curframe, | |
3505 | (int)(in[9]), (int)(in[10]), frame->bytes_recvd); | |
3506 | ||
3507 | // FIXME: Since we don't know the header formats yet, | |
3508 | // there is no way to know what the actual image size is | |
3509 | frame->rawwidth = frame->width; | |
3510 | frame->rawheight = frame->height; | |
3511 | ||
3512 | /* Validate the header data */ | |
3513 | RESTRICT_TO_RANGE(frame->rawwidth, ov->minwidth, ov->maxwidth); | |
3514 | RESTRICT_TO_RANGE(frame->rawheight, ov->minheight, ov->maxheight); | |
3515 | ||
3516 | /* Don't allow byte count to exceed buffer size */ | |
3517 | RESTRICT_TO_RANGE(frame->bytes_recvd, 8, max_raw); | |
3518 | ||
3519 | if (frame->scanstate == STATE_LINES) { | |
3520 | int nextf; | |
3521 | ||
3522 | frame->grabstate = FRAME_DONE; | |
3523 | wake_up_interruptible(&frame->wq); | |
3524 | ||
3525 | /* If next frame is ready or grabbing, | |
3526 | * point to it */ | |
3527 | nextf = (ov->curframe + 1) % OV511_NUMFRAMES; | |
3528 | if (ov->frame[nextf].grabstate == FRAME_READY | |
3529 | || ov->frame[nextf].grabstate == FRAME_GRABBING) { | |
3530 | ov->curframe = nextf; | |
3531 | ov->frame[nextf].scanstate = STATE_SCANNING; | |
3532 | frame = &ov->frame[nextf]; | |
3533 | } else { | |
3534 | if (frame->grabstate == FRAME_DONE) { | |
3535 | PDEBUG(4, "** Frame done **"); | |
3536 | } else { | |
3537 | PDEBUG(4, "Frame not ready? state = %d", | |
3538 | ov->frame[nextf].grabstate); | |
3539 | } | |
3540 | ||
3541 | ov->curframe = -1; | |
3542 | PDEBUG(4, "SOF dropped (no active frame)"); | |
3543 | return; /* Nowhere to store this frame */ | |
3544 | } | |
3545 | } | |
3546 | sof: | |
3547 | PDEBUG(4, "Starting capture on frame %d", frame->framenum); | |
3548 | ||
3549 | // Snapshot not reverse-engineered yet. | |
3550 | #if 0 | |
3551 | /* Check to see if it's a snapshot frame */ | |
3552 | /* FIXME?? Should the snapshot reset go here? Performance? */ | |
3553 | if (in[8] & 0x02) { | |
3554 | frame->snapshot = 1; | |
3555 | PDEBUG(3, "snapshot detected"); | |
3556 | } | |
3557 | #endif | |
3558 | frame->scanstate = STATE_LINES; | |
3559 | frame->bytes_recvd = 0; | |
3560 | frame->compressed = 1; | |
3561 | ||
3562 | check_middle: | |
3563 | /* Are we in a frame? */ | |
3564 | if (frame->scanstate != STATE_LINES) { | |
3565 | PDEBUG(4, "scanstate: no SOF yet"); | |
3566 | return; | |
3567 | } | |
3568 | ||
3569 | /* Dump all data exactly as received */ | |
3570 | if (dumppix == 2) { | |
3571 | frame->bytes_recvd += n; | |
3572 | if (frame->bytes_recvd <= max_raw) | |
3573 | memcpy(frame->rawdata + frame->bytes_recvd - n, in, n); | |
3574 | else | |
3575 | PDEBUG(3, "Raw data buffer overrun!! (%d)", | |
3576 | frame->bytes_recvd - max_raw); | |
3577 | } else { | |
3578 | /* All incoming data are divided into 8-byte segments. If the | |
3579 | * segment contains all zero bytes, it must be skipped. These | |
3580 | * zero-segments allow the OV518 to mainain a constant data rate | |
3581 | * regardless of the effectiveness of the compression. Segments | |
3582 | * are aligned relative to the beginning of each isochronous | |
3583 | * packet. The first segment in each image is a header (the | |
3584 | * decompressor skips it later). | |
3585 | */ | |
3586 | ||
3587 | int b, read = 0, allzero, copied = 0; | |
3588 | ||
3589 | while (read < n) { | |
3590 | allzero = 1; | |
3591 | for (b = 0; b < 8; b++) { | |
3592 | if (in[read + b]) { | |
3593 | allzero = 0; | |
3594 | break; | |
3595 | } | |
3596 | } | |
3597 | ||
3598 | if (allzero) { | |
3599 | /* Don't copy it */ | |
3600 | } else { | |
3601 | if (frame->bytes_recvd + copied + 8 <= max_raw) | |
3602 | { | |
3603 | memcpy(frame->rawdata | |
3604 | + frame->bytes_recvd + copied, | |
3605 | in + read, 8); | |
3606 | copied += 8; | |
3607 | } else { | |
3608 | PDEBUG(3, "Raw data buffer overrun!!"); | |
3609 | } | |
3610 | } | |
3611 | read += 8; | |
3612 | } | |
3613 | frame->bytes_recvd += copied; | |
3614 | } | |
3615 | } | |
3616 | ||
3617 | static void | |
3618 | ov51x_isoc_irq(struct urb *urb, struct pt_regs *regs) | |
3619 | { | |
3620 | int i; | |
3621 | struct usb_ov511 *ov; | |
3622 | struct ov511_sbuf *sbuf; | |
3623 | ||
3624 | if (!urb->context) { | |
3625 | PDEBUG(4, "no context"); | |
3626 | return; | |
3627 | } | |
3628 | ||
3629 | sbuf = urb->context; | |
3630 | ov = sbuf->ov; | |
3631 | ||
3632 | if (!ov || !ov->dev || !ov->user) { | |
3633 | PDEBUG(4, "no device, or not open"); | |
3634 | return; | |
3635 | } | |
3636 | ||
3637 | if (!ov->streaming) { | |
3638 | PDEBUG(4, "hmmm... not streaming, but got interrupt"); | |
3639 | return; | |
3640 | } | |
3641 | ||
3642 | if (urb->status == -ENOENT || urb->status == -ECONNRESET) { | |
3643 | PDEBUG(4, "URB unlinked"); | |
3644 | return; | |
3645 | } | |
3646 | ||
3647 | if (urb->status != -EINPROGRESS && urb->status != 0) { | |
3648 | err("ERROR: urb->status=%d: %s", urb->status, | |
3649 | symbolic(urb_errlist, urb->status)); | |
3650 | } | |
3651 | ||
3652 | /* Copy the data received into our frame buffer */ | |
3653 | PDEBUG(5, "sbuf[%d]: Moving %d packets", sbuf->n, | |
3654 | urb->number_of_packets); | |
3655 | for (i = 0; i < urb->number_of_packets; i++) { | |
3656 | /* Warning: Don't call *_move_data() if no frame active! */ | |
3657 | if (ov->curframe >= 0) { | |
3658 | int n = urb->iso_frame_desc[i].actual_length; | |
3659 | int st = urb->iso_frame_desc[i].status; | |
3660 | unsigned char *cdata; | |
3661 | ||
3662 | urb->iso_frame_desc[i].actual_length = 0; | |
3663 | urb->iso_frame_desc[i].status = 0; | |
3664 | ||
3665 | cdata = urb->transfer_buffer | |
3666 | + urb->iso_frame_desc[i].offset; | |
3667 | ||
3668 | if (!n) { | |
3669 | PDEBUG(4, "Zero-length packet"); | |
3670 | continue; | |
3671 | } | |
3672 | ||
3673 | if (st) | |
3674 | PDEBUG(2, "data error: [%d] len=%d, status=%d", | |
3675 | i, n, st); | |
3676 | ||
3677 | if (ov->bclass == BCL_OV511) | |
3678 | ov511_move_data(ov, cdata, n); | |
3679 | else if (ov->bclass == BCL_OV518) | |
3680 | ov518_move_data(ov, cdata, n); | |
3681 | else | |
3682 | err("Unknown bridge device (%d)", ov->bridge); | |
3683 | ||
3684 | } else if (waitqueue_active(&ov->wq)) { | |
3685 | wake_up_interruptible(&ov->wq); | |
3686 | } | |
3687 | } | |
3688 | ||
3689 | /* Resubmit this URB */ | |
3690 | urb->dev = ov->dev; | |
3691 | if ((i = usb_submit_urb(urb, GFP_ATOMIC)) != 0) | |
3692 | err("usb_submit_urb() ret %d", i); | |
3693 | ||
3694 | return; | |
3695 | } | |
3696 | ||
3697 | /**************************************************************************** | |
3698 | * | |
3699 | * Stream initialization and termination | |
3700 | * | |
3701 | ***************************************************************************/ | |
3702 | ||
3703 | static int | |
3704 | ov51x_init_isoc(struct usb_ov511 *ov) | |
3705 | { | |
3706 | struct urb *urb; | |
3707 | int fx, err, n, size; | |
3708 | ||
3709 | PDEBUG(3, "*** Initializing capture ***"); | |
3710 | ||
3711 | ov->curframe = -1; | |
3712 | ||
3713 | if (ov->bridge == BRG_OV511) { | |
3714 | if (cams == 1) | |
3715 | size = 993; | |
3716 | else if (cams == 2) | |
3717 | size = 513; | |
3718 | else if (cams == 3 || cams == 4) | |
3719 | size = 257; | |
3720 | else { | |
3721 | err("\"cams\" parameter too high!"); | |
3722 | return -1; | |
3723 | } | |
3724 | } else if (ov->bridge == BRG_OV511PLUS) { | |
3725 | if (cams == 1) | |
3726 | size = 961; | |
3727 | else if (cams == 2) | |
3728 | size = 513; | |
3729 | else if (cams == 3 || cams == 4) | |
3730 | size = 257; | |
3731 | else if (cams >= 5 && cams <= 8) | |
3732 | size = 129; | |
3733 | else if (cams >= 9 && cams <= 31) | |
3734 | size = 33; | |
3735 | else { | |
3736 | err("\"cams\" parameter too high!"); | |
3737 | return -1; | |
3738 | } | |
3739 | } else if (ov->bclass == BCL_OV518) { | |
3740 | if (cams == 1) | |
3741 | size = 896; | |
3742 | else if (cams == 2) | |
3743 | size = 512; | |
3744 | else if (cams == 3 || cams == 4) | |
3745 | size = 256; | |
3746 | else if (cams >= 5 && cams <= 8) | |
3747 | size = 128; | |
3748 | else { | |
3749 | err("\"cams\" parameter too high!"); | |
3750 | return -1; | |
3751 | } | |
3752 | } else { | |
3753 | err("invalid bridge type"); | |
3754 | return -1; | |
3755 | } | |
3756 | ||
3757 | // FIXME: OV518 is hardcoded to 15 FPS (alternate 5) for now | |
3758 | if (ov->bclass == BCL_OV518) { | |
3759 | if (packetsize == -1) { | |
3760 | ov518_set_packet_size(ov, 640); | |
3761 | } else { | |
3762 | info("Forcing packet size to %d", packetsize); | |
3763 | ov518_set_packet_size(ov, packetsize); | |
3764 | } | |
3765 | } else { | |
3766 | if (packetsize == -1) { | |
3767 | ov511_set_packet_size(ov, size); | |
3768 | } else { | |
3769 | info("Forcing packet size to %d", packetsize); | |
3770 | ov511_set_packet_size(ov, packetsize); | |
3771 | } | |
3772 | } | |
3773 | ||
3774 | for (n = 0; n < OV511_NUMSBUF; n++) { | |
3775 | urb = usb_alloc_urb(FRAMES_PER_DESC, GFP_KERNEL); | |
3776 | if (!urb) { | |
3777 | err("init isoc: usb_alloc_urb ret. NULL"); | |
3778 | return -ENOMEM; | |
3779 | } | |
3780 | ov->sbuf[n].urb = urb; | |
3781 | urb->dev = ov->dev; | |
3782 | urb->context = &ov->sbuf[n]; | |
3783 | urb->pipe = usb_rcvisocpipe(ov->dev, OV511_ENDPOINT_ADDRESS); | |
3784 | urb->transfer_flags = URB_ISO_ASAP; | |
3785 | urb->transfer_buffer = ov->sbuf[n].data; | |
3786 | urb->complete = ov51x_isoc_irq; | |
3787 | urb->number_of_packets = FRAMES_PER_DESC; | |
3788 | urb->transfer_buffer_length = ov->packet_size * FRAMES_PER_DESC; | |
3789 | urb->interval = 1; | |
3790 | for (fx = 0; fx < FRAMES_PER_DESC; fx++) { | |
3791 | urb->iso_frame_desc[fx].offset = ov->packet_size * fx; | |
3792 | urb->iso_frame_desc[fx].length = ov->packet_size; | |
3793 | } | |
3794 | } | |
3795 | ||
3796 | ov->streaming = 1; | |
3797 | ||
3798 | for (n = 0; n < OV511_NUMSBUF; n++) { | |
3799 | ov->sbuf[n].urb->dev = ov->dev; | |
3800 | err = usb_submit_urb(ov->sbuf[n].urb, GFP_KERNEL); | |
3801 | if (err) { | |
3802 | err("init isoc: usb_submit_urb(%d) ret %d", n, err); | |
3803 | return err; | |
3804 | } | |
3805 | } | |
3806 | ||
3807 | return 0; | |
3808 | } | |
3809 | ||
3810 | static void | |
3811 | ov51x_unlink_isoc(struct usb_ov511 *ov) | |
3812 | { | |
3813 | int n; | |
3814 | ||
3815 | /* Unschedule all of the iso td's */ | |
3816 | for (n = OV511_NUMSBUF - 1; n >= 0; n--) { | |
3817 | if (ov->sbuf[n].urb) { | |
3818 | usb_kill_urb(ov->sbuf[n].urb); | |
3819 | usb_free_urb(ov->sbuf[n].urb); | |
3820 | ov->sbuf[n].urb = NULL; | |
3821 | } | |
3822 | } | |
3823 | } | |
3824 | ||
3825 | static void | |
3826 | ov51x_stop_isoc(struct usb_ov511 *ov) | |
3827 | { | |
3828 | if (!ov->streaming || !ov->dev) | |
3829 | return; | |
3830 | ||
3831 | PDEBUG(3, "*** Stopping capture ***"); | |
3832 | ||
3833 | if (ov->bclass == BCL_OV518) | |
3834 | ov518_set_packet_size(ov, 0); | |
3835 | else | |
3836 | ov511_set_packet_size(ov, 0); | |
3837 | ||
3838 | ov->streaming = 0; | |
3839 | ||
3840 | ov51x_unlink_isoc(ov); | |
3841 | } | |
3842 | ||
3843 | static int | |
3844 | ov51x_new_frame(struct usb_ov511 *ov, int framenum) | |
3845 | { | |
3846 | struct ov511_frame *frame; | |
3847 | int newnum; | |
3848 | ||
3849 | PDEBUG(4, "ov->curframe = %d, framenum = %d", ov->curframe, framenum); | |
3850 | ||
3851 | if (!ov->dev) | |
3852 | return -1; | |
3853 | ||
3854 | /* If we're not grabbing a frame right now and the other frame is */ | |
3855 | /* ready to be grabbed into, then use it instead */ | |
3856 | if (ov->curframe == -1) { | |
3857 | newnum = (framenum - 1 + OV511_NUMFRAMES) % OV511_NUMFRAMES; | |
3858 | if (ov->frame[newnum].grabstate == FRAME_READY) | |
3859 | framenum = newnum; | |
3860 | } else | |
3861 | return 0; | |
3862 | ||
3863 | frame = &ov->frame[framenum]; | |
3864 | ||
3865 | PDEBUG(4, "framenum = %d, width = %d, height = %d", framenum, | |
3866 | frame->width, frame->height); | |
3867 | ||
3868 | frame->grabstate = FRAME_GRABBING; | |
3869 | frame->scanstate = STATE_SCANNING; | |
3870 | frame->snapshot = 0; | |
3871 | ||
3872 | ov->curframe = framenum; | |
3873 | ||
3874 | /* Make sure it's not too big */ | |
3875 | if (frame->width > ov->maxwidth) | |
3876 | frame->width = ov->maxwidth; | |
3877 | ||
3878 | frame->width &= ~7L; /* Multiple of 8 */ | |
3879 | ||
3880 | if (frame->height > ov->maxheight) | |
3881 | frame->height = ov->maxheight; | |
3882 | ||
3883 | frame->height &= ~3L; /* Multiple of 4 */ | |
3884 | ||
3885 | return 0; | |
3886 | } | |
3887 | ||
3888 | /**************************************************************************** | |
3889 | * | |
3890 | * Buffer management | |
3891 | * | |
3892 | ***************************************************************************/ | |
3893 | ||
3894 | /* | |
3895 | * - You must acquire buf_lock before entering this function. | |
3896 | * - Because this code will free any non-null pointer, you must be sure to null | |
3897 | * them if you explicitly free them somewhere else! | |
3898 | */ | |
3899 | static void | |
3900 | ov51x_do_dealloc(struct usb_ov511 *ov) | |
3901 | { | |
3902 | int i; | |
3903 | PDEBUG(4, "entered"); | |
3904 | ||
3905 | if (ov->fbuf) { | |
3906 | rvfree(ov->fbuf, OV511_NUMFRAMES | |
3907 | * MAX_DATA_SIZE(ov->maxwidth, ov->maxheight)); | |
3908 | ov->fbuf = NULL; | |
3909 | } | |
3910 | ||
3911 | vfree(ov->rawfbuf); | |
3912 | ov->rawfbuf = NULL; | |
3913 | ||
3914 | vfree(ov->tempfbuf); | |
3915 | ov->tempfbuf = NULL; | |
3916 | ||
3917 | for (i = 0; i < OV511_NUMSBUF; i++) { | |
1bc3c9e1 JJ |
3918 | kfree(ov->sbuf[i].data); |
3919 | ov->sbuf[i].data = NULL; | |
1da177e4 LT |
3920 | } |
3921 | ||
3922 | for (i = 0; i < OV511_NUMFRAMES; i++) { | |
3923 | ov->frame[i].data = NULL; | |
3924 | ov->frame[i].rawdata = NULL; | |
3925 | ov->frame[i].tempdata = NULL; | |
3926 | if (ov->frame[i].compbuf) { | |
3927 | free_page((unsigned long) ov->frame[i].compbuf); | |
3928 | ov->frame[i].compbuf = NULL; | |
3929 | } | |
3930 | } | |
3931 | ||
3932 | PDEBUG(4, "buffer memory deallocated"); | |
3933 | ov->buf_state = BUF_NOT_ALLOCATED; | |
3934 | PDEBUG(4, "leaving"); | |
3935 | } | |
3936 | ||
3937 | static int | |
3938 | ov51x_alloc(struct usb_ov511 *ov) | |
3939 | { | |
3940 | int i; | |
3941 | const int w = ov->maxwidth; | |
3942 | const int h = ov->maxheight; | |
3943 | const int data_bufsize = OV511_NUMFRAMES * MAX_DATA_SIZE(w, h); | |
3944 | const int raw_bufsize = OV511_NUMFRAMES * MAX_RAW_DATA_SIZE(w, h); | |
3945 | ||
3946 | PDEBUG(4, "entered"); | |
3947 | down(&ov->buf_lock); | |
3948 | ||
3949 | if (ov->buf_state == BUF_ALLOCATED) | |
3950 | goto out; | |
3951 | ||
3952 | ov->fbuf = rvmalloc(data_bufsize); | |
3953 | if (!ov->fbuf) | |
3954 | goto error; | |
3955 | ||
3956 | ov->rawfbuf = vmalloc(raw_bufsize); | |
3957 | if (!ov->rawfbuf) | |
3958 | goto error; | |
3959 | ||
3960 | memset(ov->rawfbuf, 0, raw_bufsize); | |
3961 | ||
3962 | ov->tempfbuf = vmalloc(raw_bufsize); | |
3963 | if (!ov->tempfbuf) | |
3964 | goto error; | |
3965 | ||
3966 | memset(ov->tempfbuf, 0, raw_bufsize); | |
3967 | ||
3968 | for (i = 0; i < OV511_NUMSBUF; i++) { | |
3969 | ov->sbuf[i].data = kmalloc(FRAMES_PER_DESC * | |
3970 | MAX_FRAME_SIZE_PER_DESC, GFP_KERNEL); | |
3971 | if (!ov->sbuf[i].data) | |
3972 | goto error; | |
3973 | ||
3974 | PDEBUG(4, "sbuf[%d] @ %p", i, ov->sbuf[i].data); | |
3975 | } | |
3976 | ||
3977 | for (i = 0; i < OV511_NUMFRAMES; i++) { | |
3978 | ov->frame[i].data = ov->fbuf + i * MAX_DATA_SIZE(w, h); | |
3979 | ov->frame[i].rawdata = ov->rawfbuf | |
3980 | + i * MAX_RAW_DATA_SIZE(w, h); | |
3981 | ov->frame[i].tempdata = ov->tempfbuf | |
3982 | + i * MAX_RAW_DATA_SIZE(w, h); | |
3983 | ||
3984 | ov->frame[i].compbuf = | |
3985 | (unsigned char *) __get_free_page(GFP_KERNEL); | |
3986 | if (!ov->frame[i].compbuf) | |
3987 | goto error; | |
3988 | ||
3989 | PDEBUG(4, "frame[%d] @ %p", i, ov->frame[i].data); | |
3990 | } | |
3991 | ||
3992 | ov->buf_state = BUF_ALLOCATED; | |
3993 | out: | |
3994 | up(&ov->buf_lock); | |
3995 | PDEBUG(4, "leaving"); | |
3996 | return 0; | |
3997 | error: | |
3998 | ov51x_do_dealloc(ov); | |
3999 | up(&ov->buf_lock); | |
4000 | PDEBUG(4, "errored"); | |
4001 | return -ENOMEM; | |
4002 | } | |
4003 | ||
4004 | static void | |
4005 | ov51x_dealloc(struct usb_ov511 *ov) | |
4006 | { | |
4007 | PDEBUG(4, "entered"); | |
4008 | down(&ov->buf_lock); | |
4009 | ov51x_do_dealloc(ov); | |
4010 | up(&ov->buf_lock); | |
4011 | PDEBUG(4, "leaving"); | |
4012 | } | |
4013 | ||
4014 | /**************************************************************************** | |
4015 | * | |
4016 | * V4L 1 API | |
4017 | * | |
4018 | ***************************************************************************/ | |
4019 | ||
4020 | static int | |
4021 | ov51x_v4l1_open(struct inode *inode, struct file *file) | |
4022 | { | |
4023 | struct video_device *vdev = video_devdata(file); | |
4024 | struct usb_ov511 *ov = video_get_drvdata(vdev); | |
4025 | int err, i; | |
4026 | ||
4027 | PDEBUG(4, "opening"); | |
4028 | ||
4029 | down(&ov->lock); | |
4030 | ||
4031 | err = -EBUSY; | |
4032 | if (ov->user) | |
4033 | goto out; | |
4034 | ||
4035 | ov->sub_flag = 0; | |
4036 | ||
4037 | /* In case app doesn't set them... */ | |
4038 | err = ov51x_set_default_params(ov); | |
4039 | if (err < 0) | |
4040 | goto out; | |
4041 | ||
4042 | /* Make sure frames are reset */ | |
4043 | for (i = 0; i < OV511_NUMFRAMES; i++) { | |
4044 | ov->frame[i].grabstate = FRAME_UNUSED; | |
4045 | ov->frame[i].bytes_read = 0; | |
4046 | } | |
4047 | ||
4048 | /* If compression is on, make sure now that a | |
4049 | * decompressor can be loaded */ | |
4050 | if (ov->compress && !ov->decomp_ops) { | |
4051 | err = request_decompressor(ov); | |
4052 | if (err && !dumppix) | |
4053 | goto out; | |
4054 | } | |
4055 | ||
4056 | err = ov51x_alloc(ov); | |
4057 | if (err < 0) | |
4058 | goto out; | |
4059 | ||
4060 | err = ov51x_init_isoc(ov); | |
4061 | if (err) { | |
4062 | ov51x_dealloc(ov); | |
4063 | goto out; | |
4064 | } | |
4065 | ||
4066 | ov->user++; | |
4067 | file->private_data = vdev; | |
4068 | ||
4069 | if (ov->led_policy == LED_AUTO) | |
4070 | ov51x_led_control(ov, 1); | |
4071 | ||
4072 | out: | |
4073 | up(&ov->lock); | |
4074 | return err; | |
4075 | } | |
4076 | ||
4077 | static int | |
4078 | ov51x_v4l1_close(struct inode *inode, struct file *file) | |
4079 | { | |
4080 | struct video_device *vdev = file->private_data; | |
4081 | struct usb_ov511 *ov = video_get_drvdata(vdev); | |
4082 | ||
4083 | PDEBUG(4, "ov511_close"); | |
4084 | ||
4085 | down(&ov->lock); | |
4086 | ||
4087 | ov->user--; | |
4088 | ov51x_stop_isoc(ov); | |
4089 | ||
4090 | release_decompressor(ov); | |
4091 | ||
4092 | if (ov->led_policy == LED_AUTO) | |
4093 | ov51x_led_control(ov, 0); | |
4094 | ||
4095 | if (ov->dev) | |
4096 | ov51x_dealloc(ov); | |
4097 | ||
4098 | up(&ov->lock); | |
4099 | ||
4100 | /* Device unplugged while open. Only a minimum of unregistration is done | |
4101 | * here; the disconnect callback already did the rest. */ | |
4102 | if (!ov->dev) { | |
4103 | down(&ov->cbuf_lock); | |
4104 | kfree(ov->cbuf); | |
4105 | ov->cbuf = NULL; | |
4106 | up(&ov->cbuf_lock); | |
4107 | ||
4108 | ov51x_dealloc(ov); | |
4109 | kfree(ov); | |
4110 | ov = NULL; | |
4111 | } | |
4112 | ||
4113 | file->private_data = NULL; | |
4114 | return 0; | |
4115 | } | |
4116 | ||
4117 | /* Do not call this function directly! */ | |
4118 | static int | |
4119 | ov51x_v4l1_ioctl_internal(struct inode *inode, struct file *file, | |
4120 | unsigned int cmd, void *arg) | |
4121 | { | |
4122 | struct video_device *vdev = file->private_data; | |
4123 | struct usb_ov511 *ov = video_get_drvdata(vdev); | |
4124 | PDEBUG(5, "IOCtl: 0x%X", cmd); | |
4125 | ||
4126 | if (!ov->dev) | |
4127 | return -EIO; | |
4128 | ||
4129 | switch (cmd) { | |
4130 | case VIDIOCGCAP: | |
4131 | { | |
4132 | struct video_capability *b = arg; | |
4133 | ||
4134 | PDEBUG(4, "VIDIOCGCAP"); | |
4135 | ||
4136 | memset(b, 0, sizeof(struct video_capability)); | |
4137 | sprintf(b->name, "%s USB Camera", | |
4138 | symbolic(brglist, ov->bridge)); | |
4139 | b->type = VID_TYPE_CAPTURE | VID_TYPE_SUBCAPTURE; | |
4140 | b->channels = ov->num_inputs; | |
4141 | b->audios = 0; | |
4142 | b->maxwidth = ov->maxwidth; | |
4143 | b->maxheight = ov->maxheight; | |
4144 | b->minwidth = ov->minwidth; | |
4145 | b->minheight = ov->minheight; | |
4146 | ||
4147 | return 0; | |
4148 | } | |
4149 | case VIDIOCGCHAN: | |
4150 | { | |
4151 | struct video_channel *v = arg; | |
4152 | ||
4153 | PDEBUG(4, "VIDIOCGCHAN"); | |
4154 | ||
4155 | if ((unsigned)(v->channel) >= ov->num_inputs) { | |
4156 | err("Invalid channel (%d)", v->channel); | |
4157 | return -EINVAL; | |
4158 | } | |
4159 | ||
4160 | v->norm = ov->norm; | |
4161 | v->type = VIDEO_TYPE_CAMERA; | |
4162 | v->flags = 0; | |
4163 | // v->flags |= (ov->has_decoder) ? VIDEO_VC_NORM : 0; | |
4164 | v->tuners = 0; | |
4165 | decoder_get_input_name(ov, v->channel, v->name); | |
4166 | ||
4167 | return 0; | |
4168 | } | |
4169 | case VIDIOCSCHAN: | |
4170 | { | |
4171 | struct video_channel *v = arg; | |
4172 | int err; | |
4173 | ||
4174 | PDEBUG(4, "VIDIOCSCHAN"); | |
4175 | ||
4176 | /* Make sure it's not a camera */ | |
4177 | if (!ov->has_decoder) { | |
4178 | if (v->channel == 0) | |
4179 | return 0; | |
4180 | else | |
4181 | return -EINVAL; | |
4182 | } | |
4183 | ||
4184 | if (v->norm != VIDEO_MODE_PAL && | |
4185 | v->norm != VIDEO_MODE_NTSC && | |
4186 | v->norm != VIDEO_MODE_SECAM && | |
4187 | v->norm != VIDEO_MODE_AUTO) { | |
4188 | err("Invalid norm (%d)", v->norm); | |
4189 | return -EINVAL; | |
4190 | } | |
4191 | ||
4192 | if ((unsigned)(v->channel) >= ov->num_inputs) { | |
4193 | err("Invalid channel (%d)", v->channel); | |
4194 | return -EINVAL; | |
4195 | } | |
4196 | ||
4197 | err = decoder_set_input(ov, v->channel); | |
4198 | if (err) | |
4199 | return err; | |
4200 | ||
4201 | err = decoder_set_norm(ov, v->norm); | |
4202 | if (err) | |
4203 | return err; | |
4204 | ||
4205 | return 0; | |
4206 | } | |
4207 | case VIDIOCGPICT: | |
4208 | { | |
4209 | struct video_picture *p = arg; | |
4210 | ||
4211 | PDEBUG(4, "VIDIOCGPICT"); | |
4212 | ||
4213 | memset(p, 0, sizeof(struct video_picture)); | |
4214 | if (sensor_get_picture(ov, p)) | |
4215 | return -EIO; | |
4216 | ||
4217 | /* Can we get these from frame[0]? -claudio? */ | |
4218 | p->depth = ov->frame[0].depth; | |
4219 | p->palette = ov->frame[0].format; | |
4220 | ||
4221 | return 0; | |
4222 | } | |
4223 | case VIDIOCSPICT: | |
4224 | { | |
4225 | struct video_picture *p = arg; | |
4226 | int i, rc; | |
4227 | ||
4228 | PDEBUG(4, "VIDIOCSPICT"); | |
4229 | ||
4230 | if (!get_depth(p->palette)) | |
4231 | return -EINVAL; | |
4232 | ||
4233 | if (sensor_set_picture(ov, p)) | |
4234 | return -EIO; | |
4235 | ||
4236 | if (force_palette && p->palette != force_palette) { | |
4237 | info("Palette rejected (%s)", | |
4238 | symbolic(v4l1_plist, p->palette)); | |
4239 | return -EINVAL; | |
4240 | } | |
4241 | ||
4242 | // FIXME: Format should be independent of frames | |
4243 | if (p->palette != ov->frame[0].format) { | |
4244 | PDEBUG(4, "Detected format change"); | |
4245 | ||
4246 | rc = ov51x_wait_frames_inactive(ov); | |
4247 | if (rc) | |
4248 | return rc; | |
4249 | ||
4250 | mode_init_regs(ov, ov->frame[0].width, | |
4251 | ov->frame[0].height, p->palette, ov->sub_flag); | |
4252 | } | |
4253 | ||
4254 | PDEBUG(4, "Setting depth=%d, palette=%s", | |
4255 | p->depth, symbolic(v4l1_plist, p->palette)); | |
4256 | ||
4257 | for (i = 0; i < OV511_NUMFRAMES; i++) { | |
4258 | ov->frame[i].depth = p->depth; | |
4259 | ov->frame[i].format = p->palette; | |
4260 | } | |
4261 | ||
4262 | return 0; | |
4263 | } | |
4264 | case VIDIOCGCAPTURE: | |
4265 | { | |
4266 | int *vf = arg; | |
4267 | ||
4268 | PDEBUG(4, "VIDIOCGCAPTURE"); | |
4269 | ||
4270 | ov->sub_flag = *vf; | |
4271 | return 0; | |
4272 | } | |
4273 | case VIDIOCSCAPTURE: | |
4274 | { | |
4275 | struct video_capture *vc = arg; | |
4276 | ||
4277 | PDEBUG(4, "VIDIOCSCAPTURE"); | |
4278 | ||
4279 | if (vc->flags) | |
4280 | return -EINVAL; | |
4281 | if (vc->decimation) | |
4282 | return -EINVAL; | |
4283 | ||
4284 | vc->x &= ~3L; | |
4285 | vc->y &= ~1L; | |
4286 | vc->y &= ~31L; | |
4287 | ||
4288 | if (vc->width == 0) | |
4289 | vc->width = 32; | |
4290 | ||
4291 | vc->height /= 16; | |
4292 | vc->height *= 16; | |
4293 | if (vc->height == 0) | |
4294 | vc->height = 16; | |
4295 | ||
4296 | ov->subx = vc->x; | |
4297 | ov->suby = vc->y; | |
4298 | ov->subw = vc->width; | |
4299 | ov->subh = vc->height; | |
4300 | ||
4301 | return 0; | |
4302 | } | |
4303 | case VIDIOCSWIN: | |
4304 | { | |
4305 | struct video_window *vw = arg; | |
4306 | int i, rc; | |
4307 | ||
4308 | PDEBUG(4, "VIDIOCSWIN: %dx%d", vw->width, vw->height); | |
4309 | ||
4310 | #if 0 | |
4311 | if (vw->flags) | |
4312 | return -EINVAL; | |
4313 | if (vw->clipcount) | |
4314 | return -EINVAL; | |
4315 | if (vw->height != ov->maxheight) | |
4316 | return -EINVAL; | |
4317 | if (vw->width != ov->maxwidth) | |
4318 | return -EINVAL; | |
4319 | #endif | |
4320 | ||
4321 | rc = ov51x_wait_frames_inactive(ov); | |
4322 | if (rc) | |
4323 | return rc; | |
4324 | ||
4325 | rc = mode_init_regs(ov, vw->width, vw->height, | |
4326 | ov->frame[0].format, ov->sub_flag); | |
4327 | if (rc < 0) | |
4328 | return rc; | |
4329 | ||
4330 | for (i = 0; i < OV511_NUMFRAMES; i++) { | |
4331 | ov->frame[i].width = vw->width; | |
4332 | ov->frame[i].height = vw->height; | |
4333 | } | |
4334 | ||
4335 | return 0; | |
4336 | } | |
4337 | case VIDIOCGWIN: | |
4338 | { | |
4339 | struct video_window *vw = arg; | |
4340 | ||
4341 | memset(vw, 0, sizeof(struct video_window)); | |
4342 | vw->x = 0; /* FIXME */ | |
4343 | vw->y = 0; | |
4344 | vw->width = ov->frame[0].width; | |
4345 | vw->height = ov->frame[0].height; | |
4346 | vw->flags = 30; | |
4347 | ||
4348 | PDEBUG(4, "VIDIOCGWIN: %dx%d", vw->width, vw->height); | |
4349 | ||
4350 | return 0; | |
4351 | } | |
4352 | case VIDIOCGMBUF: | |
4353 | { | |
4354 | struct video_mbuf *vm = arg; | |
4355 | int i; | |
4356 | ||
4357 | PDEBUG(4, "VIDIOCGMBUF"); | |
4358 | ||
4359 | memset(vm, 0, sizeof(struct video_mbuf)); | |
4360 | vm->size = OV511_NUMFRAMES | |
4361 | * MAX_DATA_SIZE(ov->maxwidth, ov->maxheight); | |
4362 | vm->frames = OV511_NUMFRAMES; | |
4363 | ||
4364 | vm->offsets[0] = 0; | |
4365 | for (i = 1; i < OV511_NUMFRAMES; i++) { | |
4366 | vm->offsets[i] = vm->offsets[i-1] | |
4367 | + MAX_DATA_SIZE(ov->maxwidth, ov->maxheight); | |
4368 | } | |
4369 | ||
4370 | return 0; | |
4371 | } | |
4372 | case VIDIOCMCAPTURE: | |
4373 | { | |
4374 | struct video_mmap *vm = arg; | |
4375 | int rc, depth; | |
4376 | unsigned int f = vm->frame; | |
4377 | ||
4378 | PDEBUG(4, "VIDIOCMCAPTURE: frame: %d, %dx%d, %s", f, vm->width, | |
4379 | vm->height, symbolic(v4l1_plist, vm->format)); | |
4380 | ||
4381 | depth = get_depth(vm->format); | |
4382 | if (!depth) { | |
4383 | PDEBUG(2, "VIDIOCMCAPTURE: invalid format (%s)", | |
4384 | symbolic(v4l1_plist, vm->format)); | |
4385 | return -EINVAL; | |
4386 | } | |
4387 | ||
4388 | if (f >= OV511_NUMFRAMES) { | |
4389 | err("VIDIOCMCAPTURE: invalid frame (%d)", f); | |
4390 | return -EINVAL; | |
4391 | } | |
4392 | ||
4393 | if (vm->width > ov->maxwidth | |
4394 | || vm->height > ov->maxheight) { | |
4395 | err("VIDIOCMCAPTURE: requested dimensions too big"); | |
4396 | return -EINVAL; | |
4397 | } | |
4398 | ||
4399 | if (ov->frame[f].grabstate == FRAME_GRABBING) { | |
4400 | PDEBUG(4, "VIDIOCMCAPTURE: already grabbing"); | |
4401 | return -EBUSY; | |
4402 | } | |
4403 | ||
4404 | if (force_palette && (vm->format != force_palette)) { | |
4405 | PDEBUG(2, "palette rejected (%s)", | |
4406 | symbolic(v4l1_plist, vm->format)); | |
4407 | return -EINVAL; | |
4408 | } | |
4409 | ||
4410 | if ((ov->frame[f].width != vm->width) || | |
4411 | (ov->frame[f].height != vm->height) || | |
4412 | (ov->frame[f].format != vm->format) || | |
4413 | (ov->frame[f].sub_flag != ov->sub_flag) || | |
4414 | (ov->frame[f].depth != depth)) { | |
4415 | PDEBUG(4, "VIDIOCMCAPTURE: change in image parameters"); | |
4416 | ||
4417 | rc = ov51x_wait_frames_inactive(ov); | |
4418 | if (rc) | |
4419 | return rc; | |
4420 | ||
4421 | rc = mode_init_regs(ov, vm->width, vm->height, | |
4422 | vm->format, ov->sub_flag); | |
4423 | #if 0 | |
4424 | if (rc < 0) { | |
4425 | PDEBUG(1, "Got error while initializing regs "); | |
4426 | return ret; | |
4427 | } | |
4428 | #endif | |
4429 | ov->frame[f].width = vm->width; | |
4430 | ov->frame[f].height = vm->height; | |
4431 | ov->frame[f].format = vm->format; | |
4432 | ov->frame[f].sub_flag = ov->sub_flag; | |
4433 | ov->frame[f].depth = depth; | |
4434 | } | |
4435 | ||
4436 | /* Mark it as ready */ | |
4437 | ov->frame[f].grabstate = FRAME_READY; | |
4438 | ||
4439 | PDEBUG(4, "VIDIOCMCAPTURE: renewing frame %d", f); | |
4440 | ||
4441 | return ov51x_new_frame(ov, f); | |
4442 | } | |
4443 | case VIDIOCSYNC: | |
4444 | { | |
4445 | unsigned int fnum = *((unsigned int *) arg); | |
4446 | struct ov511_frame *frame; | |
4447 | int rc; | |
4448 | ||
4449 | if (fnum >= OV511_NUMFRAMES) { | |
4450 | err("VIDIOCSYNC: invalid frame (%d)", fnum); | |
4451 | return -EINVAL; | |
4452 | } | |
4453 | ||
4454 | frame = &ov->frame[fnum]; | |
4455 | ||
4456 | PDEBUG(4, "syncing to frame %d, grabstate = %d", fnum, | |
4457 | frame->grabstate); | |
4458 | ||
4459 | switch (frame->grabstate) { | |
4460 | case FRAME_UNUSED: | |
4461 | return -EINVAL; | |
4462 | case FRAME_READY: | |
4463 | case FRAME_GRABBING: | |
4464 | case FRAME_ERROR: | |
4465 | redo: | |
4466 | if (!ov->dev) | |
4467 | return -EIO; | |
4468 | ||
4469 | rc = wait_event_interruptible(frame->wq, | |
4470 | (frame->grabstate == FRAME_DONE) | |
4471 | || (frame->grabstate == FRAME_ERROR)); | |
4472 | ||
4473 | if (rc) | |
4474 | return rc; | |
4475 | ||
4476 | if (frame->grabstate == FRAME_ERROR) { | |
4477 | if ((rc = ov51x_new_frame(ov, fnum)) < 0) | |
4478 | return rc; | |
4479 | goto redo; | |
4480 | } | |
4481 | /* Fall through */ | |
4482 | case FRAME_DONE: | |
4483 | if (ov->snap_enabled && !frame->snapshot) { | |
4484 | if ((rc = ov51x_new_frame(ov, fnum)) < 0) | |
4485 | return rc; | |
4486 | goto redo; | |
4487 | } | |
4488 | ||
4489 | frame->grabstate = FRAME_UNUSED; | |
4490 | ||
4491 | /* Reset the hardware snapshot button */ | |
4492 | /* FIXME - Is this the best place for this? */ | |
4493 | if ((ov->snap_enabled) && (frame->snapshot)) { | |
4494 | frame->snapshot = 0; | |
4495 | ov51x_clear_snapshot(ov); | |
4496 | } | |
4497 | ||
4498 | /* Decompression, format conversion, etc... */ | |
4499 | ov51x_postprocess(ov, frame); | |
4500 | ||
4501 | break; | |
4502 | } /* end switch */ | |
4503 | ||
4504 | return 0; | |
4505 | } | |
4506 | case VIDIOCGFBUF: | |
4507 | { | |
4508 | struct video_buffer *vb = arg; | |
4509 | ||
4510 | PDEBUG(4, "VIDIOCGFBUF"); | |
4511 | ||
4512 | memset(vb, 0, sizeof(struct video_buffer)); | |
4513 | ||
4514 | return 0; | |
4515 | } | |
4516 | case VIDIOCGUNIT: | |
4517 | { | |
4518 | struct video_unit *vu = arg; | |
4519 | ||
4520 | PDEBUG(4, "VIDIOCGUNIT"); | |
4521 | ||
4522 | memset(vu, 0, sizeof(struct video_unit)); | |
4523 | ||
4524 | vu->video = ov->vdev->minor; | |
4525 | vu->vbi = VIDEO_NO_UNIT; | |
4526 | vu->radio = VIDEO_NO_UNIT; | |
4527 | vu->audio = VIDEO_NO_UNIT; | |
4528 | vu->teletext = VIDEO_NO_UNIT; | |
4529 | ||
4530 | return 0; | |
4531 | } | |
4532 | case OV511IOC_WI2C: | |
4533 | { | |
4534 | struct ov511_i2c_struct *w = arg; | |
4535 | ||
4536 | return i2c_w_slave(ov, w->slave, w->reg, w->value, w->mask); | |
4537 | } | |
4538 | case OV511IOC_RI2C: | |
4539 | { | |
4540 | struct ov511_i2c_struct *r = arg; | |
4541 | int rc; | |
4542 | ||
4543 | rc = i2c_r_slave(ov, r->slave, r->reg); | |
4544 | if (rc < 0) | |
4545 | return rc; | |
4546 | ||
4547 | r->value = rc; | |
4548 | return 0; | |
4549 | } | |
4550 | default: | |
4551 | PDEBUG(3, "Unsupported IOCtl: 0x%X", cmd); | |
4552 | return -ENOIOCTLCMD; | |
4553 | } /* end switch */ | |
4554 | ||
4555 | return 0; | |
4556 | } | |
4557 | ||
4558 | static int | |
4559 | ov51x_v4l1_ioctl(struct inode *inode, struct file *file, | |
4560 | unsigned int cmd, unsigned long arg) | |
4561 | { | |
4562 | struct video_device *vdev = file->private_data; | |
4563 | struct usb_ov511 *ov = video_get_drvdata(vdev); | |
4564 | int rc; | |
4565 | ||
4566 | if (down_interruptible(&ov->lock)) | |
4567 | return -EINTR; | |
4568 | ||
4569 | rc = video_usercopy(inode, file, cmd, arg, ov51x_v4l1_ioctl_internal); | |
4570 | ||
4571 | up(&ov->lock); | |
4572 | return rc; | |
4573 | } | |
4574 | ||
4575 | static ssize_t | |
4576 | ov51x_v4l1_read(struct file *file, char __user *buf, size_t cnt, loff_t *ppos) | |
4577 | { | |
4578 | struct video_device *vdev = file->private_data; | |
4579 | int noblock = file->f_flags&O_NONBLOCK; | |
4580 | unsigned long count = cnt; | |
4581 | struct usb_ov511 *ov = video_get_drvdata(vdev); | |
4582 | int i, rc = 0, frmx = -1; | |
4583 | struct ov511_frame *frame; | |
4584 | ||
4585 | if (down_interruptible(&ov->lock)) | |
4586 | return -EINTR; | |
4587 | ||
4588 | PDEBUG(4, "%ld bytes, noblock=%d", count, noblock); | |
4589 | ||
4590 | if (!vdev || !buf) { | |
4591 | rc = -EFAULT; | |
4592 | goto error; | |
4593 | } | |
4594 | ||
4595 | if (!ov->dev) { | |
4596 | rc = -EIO; | |
4597 | goto error; | |
4598 | } | |
4599 | ||
4600 | // FIXME: Only supports two frames | |
4601 | /* See if a frame is completed, then use it. */ | |
4602 | if (ov->frame[0].grabstate >= FRAME_DONE) /* _DONE or _ERROR */ | |
4603 | frmx = 0; | |
4604 | else if (ov->frame[1].grabstate >= FRAME_DONE)/* _DONE or _ERROR */ | |
4605 | frmx = 1; | |
4606 | ||
4607 | /* If nonblocking we return immediately */ | |
4608 | if (noblock && (frmx == -1)) { | |
4609 | rc = -EAGAIN; | |
4610 | goto error; | |
4611 | } | |
4612 | ||
4613 | /* If no FRAME_DONE, look for a FRAME_GRABBING state. */ | |
4614 | /* See if a frame is in process (grabbing), then use it. */ | |
4615 | if (frmx == -1) { | |
4616 | if (ov->frame[0].grabstate == FRAME_GRABBING) | |
4617 | frmx = 0; | |
4618 | else if (ov->frame[1].grabstate == FRAME_GRABBING) | |
4619 | frmx = 1; | |
4620 | } | |
4621 | ||
4622 | /* If no frame is active, start one. */ | |
4623 | if (frmx == -1) { | |
4624 | if ((rc = ov51x_new_frame(ov, frmx = 0))) { | |
4625 | err("read: ov51x_new_frame error"); | |
4626 | goto error; | |
4627 | } | |
4628 | } | |
4629 | ||
4630 | frame = &ov->frame[frmx]; | |
4631 | ||
4632 | restart: | |
4633 | if (!ov->dev) { | |
4634 | rc = -EIO; | |
4635 | goto error; | |
4636 | } | |
4637 | ||
4638 | /* Wait while we're grabbing the image */ | |
4639 | PDEBUG(4, "Waiting image grabbing"); | |
4640 | rc = wait_event_interruptible(frame->wq, | |
4641 | (frame->grabstate == FRAME_DONE) | |
4642 | || (frame->grabstate == FRAME_ERROR)); | |
4643 | ||
4644 | if (rc) | |
4645 | goto error; | |
4646 | ||
4647 | PDEBUG(4, "Got image, frame->grabstate = %d", frame->grabstate); | |
4648 | PDEBUG(4, "bytes_recvd = %d", frame->bytes_recvd); | |
4649 | ||
4650 | if (frame->grabstate == FRAME_ERROR) { | |
4651 | frame->bytes_read = 0; | |
4652 | err("** ick! ** Errored frame %d", ov->curframe); | |
4653 | if (ov51x_new_frame(ov, frmx)) { | |
4654 | err("read: ov51x_new_frame error"); | |
4655 | goto error; | |
4656 | } | |
4657 | goto restart; | |
4658 | } | |
4659 | ||
4660 | ||
4661 | /* Repeat until we get a snapshot frame */ | |
4662 | if (ov->snap_enabled) | |
4663 | PDEBUG(4, "Waiting snapshot frame"); | |
4664 | if (ov->snap_enabled && !frame->snapshot) { | |
4665 | frame->bytes_read = 0; | |
4666 | if ((rc = ov51x_new_frame(ov, frmx))) { | |
4667 | err("read: ov51x_new_frame error"); | |
4668 | goto error; | |
4669 | } | |
4670 | goto restart; | |
4671 | } | |
4672 | ||
4673 | /* Clear the snapshot */ | |
4674 | if (ov->snap_enabled && frame->snapshot) { | |
4675 | frame->snapshot = 0; | |
4676 | ov51x_clear_snapshot(ov); | |
4677 | } | |
4678 | ||
4679 | /* Decompression, format conversion, etc... */ | |
4680 | ov51x_postprocess(ov, frame); | |
4681 | ||
4682 | PDEBUG(4, "frmx=%d, bytes_read=%ld, length=%ld", frmx, | |
4683 | frame->bytes_read, | |
4684 | get_frame_length(frame)); | |
4685 | ||
4686 | /* copy bytes to user space; we allow for partials reads */ | |
4687 | // if ((count + frame->bytes_read) | |
4688 | // > get_frame_length((struct ov511_frame *)frame)) | |
4689 | // count = frame->scanlength - frame->bytes_read; | |
4690 | ||
4691 | /* FIXME - count hardwired to be one frame... */ | |
4692 | count = get_frame_length(frame); | |
4693 | ||
4694 | PDEBUG(4, "Copy to user space: %ld bytes", count); | |
4695 | if ((i = copy_to_user(buf, frame->data + frame->bytes_read, count))) { | |
4696 | PDEBUG(4, "Copy failed! %d bytes not copied", i); | |
4697 | rc = -EFAULT; | |
4698 | goto error; | |
4699 | } | |
4700 | ||
4701 | frame->bytes_read += count; | |
4702 | PDEBUG(4, "{copy} count used=%ld, new bytes_read=%ld", | |
4703 | count, frame->bytes_read); | |
4704 | ||
4705 | /* If all data have been read... */ | |
4706 | if (frame->bytes_read | |
4707 | >= get_frame_length(frame)) { | |
4708 | frame->bytes_read = 0; | |
4709 | ||
4710 | // FIXME: Only supports two frames | |
4711 | /* Mark it as available to be used again. */ | |
4712 | ov->frame[frmx].grabstate = FRAME_UNUSED; | |
4713 | if ((rc = ov51x_new_frame(ov, !frmx))) { | |
4714 | err("ov51x_new_frame returned error"); | |
4715 | goto error; | |
4716 | } | |
4717 | } | |
4718 | ||
4719 | PDEBUG(4, "read finished, returning %ld (sweet)", count); | |
4720 | ||
4721 | up(&ov->lock); | |
4722 | return count; | |
4723 | ||
4724 | error: | |
4725 | up(&ov->lock); | |
4726 | return rc; | |
4727 | } | |
4728 | ||
4729 | static int | |
4730 | ov51x_v4l1_mmap(struct file *file, struct vm_area_struct *vma) | |
4731 | { | |
4732 | struct video_device *vdev = file->private_data; | |
4733 | unsigned long start = vma->vm_start; | |
4734 | unsigned long size = vma->vm_end - vma->vm_start; | |
4735 | struct usb_ov511 *ov = video_get_drvdata(vdev); | |
4736 | unsigned long page, pos; | |
4737 | ||
4738 | if (ov->dev == NULL) | |
4739 | return -EIO; | |
4740 | ||
4741 | PDEBUG(4, "mmap: %ld (%lX) bytes", size, size); | |
4742 | ||
4743 | if (size > (((OV511_NUMFRAMES | |
4744 | * MAX_DATA_SIZE(ov->maxwidth, ov->maxheight) | |
4745 | + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1)))) | |
4746 | return -EINVAL; | |
4747 | ||
4748 | if (down_interruptible(&ov->lock)) | |
4749 | return -EINTR; | |
4750 | ||
4751 | pos = (unsigned long)ov->fbuf; | |
4752 | while (size > 0) { | |
4753 | page = vmalloc_to_pfn((void *)pos); | |
4754 | if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) { | |
4755 | up(&ov->lock); | |
4756 | return -EAGAIN; | |
4757 | } | |
4758 | start += PAGE_SIZE; | |
4759 | pos += PAGE_SIZE; | |
4760 | if (size > PAGE_SIZE) | |
4761 | size -= PAGE_SIZE; | |
4762 | else | |
4763 | size = 0; | |
4764 | } | |
4765 | ||
4766 | up(&ov->lock); | |
4767 | return 0; | |
4768 | } | |
4769 | ||
4770 | static struct file_operations ov511_fops = { | |
4771 | .owner = THIS_MODULE, | |
4772 | .open = ov51x_v4l1_open, | |
4773 | .release = ov51x_v4l1_close, | |
4774 | .read = ov51x_v4l1_read, | |
4775 | .mmap = ov51x_v4l1_mmap, | |
4776 | .ioctl = ov51x_v4l1_ioctl, | |
4777 | .llseek = no_llseek, | |
4778 | }; | |
4779 | ||
4780 | static struct video_device vdev_template = { | |
4781 | .owner = THIS_MODULE, | |
4782 | .name = "OV511 USB Camera", | |
4783 | .type = VID_TYPE_CAPTURE, | |
4784 | .hardware = VID_HARDWARE_OV511, | |
4785 | .fops = &ov511_fops, | |
4786 | .release = video_device_release, | |
4787 | .minor = -1, | |
4788 | }; | |
4789 | ||
4790 | /**************************************************************************** | |
4791 | * | |
4792 | * OV511 and sensor configuration | |
4793 | * | |
4794 | ***************************************************************************/ | |
4795 | ||
4796 | /* This initializes the OV7610, OV7620, or OV76BE sensor. The OV76BE uses | |
4797 | * the same register settings as the OV7610, since they are very similar. | |
4798 | */ | |
4799 | static int | |
4800 | ov7xx0_configure(struct usb_ov511 *ov) | |
4801 | { | |
4802 | int i, success; | |
4803 | int rc; | |
4804 | ||
4805 | /* Lawrence Glaister <lg@jfm.bc.ca> reports: | |
4806 | * | |
4807 | * Register 0x0f in the 7610 has the following effects: | |
4808 | * | |
4809 | * 0x85 (AEC method 1): Best overall, good contrast range | |
4810 | * 0x45 (AEC method 2): Very overexposed | |
4811 | * 0xa5 (spec sheet default): Ok, but the black level is | |
4812 | * shifted resulting in loss of contrast | |
4813 | * 0x05 (old driver setting): very overexposed, too much | |
4814 | * contrast | |
4815 | */ | |
4816 | static struct ov511_regvals aRegvalsNorm7610[] = { | |
4817 | { OV511_I2C_BUS, 0x10, 0xff }, | |
4818 | { OV511_I2C_BUS, 0x16, 0x06 }, | |
4819 | { OV511_I2C_BUS, 0x28, 0x24 }, | |
4820 | { OV511_I2C_BUS, 0x2b, 0xac }, | |
4821 | { OV511_I2C_BUS, 0x12, 0x00 }, | |
4822 | { OV511_I2C_BUS, 0x38, 0x81 }, | |
4823 | { OV511_I2C_BUS, 0x28, 0x24 }, /* 0c */ | |
4824 | { OV511_I2C_BUS, 0x0f, 0x85 }, /* lg's setting */ | |
4825 | { OV511_I2C_BUS, 0x15, 0x01 }, | |
4826 | { OV511_I2C_BUS, 0x20, 0x1c }, | |
4827 | { OV511_I2C_BUS, 0x23, 0x2a }, | |
4828 | { OV511_I2C_BUS, 0x24, 0x10 }, | |
4829 | { OV511_I2C_BUS, 0x25, 0x8a }, | |
4830 | { OV511_I2C_BUS, 0x26, 0xa2 }, | |
4831 | { OV511_I2C_BUS, 0x27, 0xc2 }, | |
4832 | { OV511_I2C_BUS, 0x2a, 0x04 }, | |
4833 | { OV511_I2C_BUS, 0x2c, 0xfe }, | |
4834 | { OV511_I2C_BUS, 0x2d, 0x93 }, | |
4835 | { OV511_I2C_BUS, 0x30, 0x71 }, | |
4836 | { OV511_I2C_BUS, 0x31, 0x60 }, | |
4837 | { OV511_I2C_BUS, 0x32, 0x26 }, | |
4838 | { OV511_I2C_BUS, 0x33, 0x20 }, | |
4839 | { OV511_I2C_BUS, 0x34, 0x48 }, | |
4840 | { OV511_I2C_BUS, 0x12, 0x24 }, | |
4841 | { OV511_I2C_BUS, 0x11, 0x01 }, | |
4842 | { OV511_I2C_BUS, 0x0c, 0x24 }, | |
4843 | { OV511_I2C_BUS, 0x0d, 0x24 }, | |
4844 | { OV511_DONE_BUS, 0x0, 0x00 }, | |
4845 | }; | |
4846 | ||
4847 | static struct ov511_regvals aRegvalsNorm7620[] = { | |
4848 | { OV511_I2C_BUS, 0x00, 0x00 }, | |
4849 | { OV511_I2C_BUS, 0x01, 0x80 }, | |
4850 | { OV511_I2C_BUS, 0x02, 0x80 }, | |
4851 | { OV511_I2C_BUS, 0x03, 0xc0 }, | |
4852 | { OV511_I2C_BUS, 0x06, 0x60 }, | |
4853 | { OV511_I2C_BUS, 0x07, 0x00 }, | |
4854 | { OV511_I2C_BUS, 0x0c, 0x24 }, | |
4855 | { OV511_I2C_BUS, 0x0c, 0x24 }, | |
4856 | { OV511_I2C_BUS, 0x0d, 0x24 }, | |
4857 | { OV511_I2C_BUS, 0x11, 0x01 }, | |
4858 | { OV511_I2C_BUS, 0x12, 0x24 }, | |
4859 | { OV511_I2C_BUS, 0x13, 0x01 }, | |
4860 | { OV511_I2C_BUS, 0x14, 0x84 }, | |
4861 | { OV511_I2C_BUS, 0x15, 0x01 }, | |
4862 | { OV511_I2C_BUS, 0x16, 0x03 }, | |
4863 | { OV511_I2C_BUS, 0x17, 0x2f }, | |
4864 | { OV511_I2C_BUS, 0x18, 0xcf }, | |
4865 | { OV511_I2C_BUS, 0x19, 0x06 }, | |
4866 | { OV511_I2C_BUS, 0x1a, 0xf5 }, | |
4867 | { OV511_I2C_BUS, 0x1b, 0x00 }, | |
4868 | { OV511_I2C_BUS, 0x20, 0x18 }, | |
4869 | { OV511_I2C_BUS, 0x21, 0x80 }, | |
4870 | { OV511_I2C_BUS, 0x22, 0x80 }, | |
4871 | { OV511_I2C_BUS, 0x23, 0x00 }, | |
4872 | { OV511_I2C_BUS, 0x26, 0xa2 }, | |
4873 | { OV511_I2C_BUS, 0x27, 0xea }, | |
4874 | { OV511_I2C_BUS, 0x28, 0x20 }, | |
4875 | { OV511_I2C_BUS, 0x29, 0x00 }, | |
4876 | { OV511_I2C_BUS, 0x2a, 0x10 }, | |
4877 | { OV511_I2C_BUS, 0x2b, 0x00 }, | |
4878 | { OV511_I2C_BUS, 0x2c, 0x88 }, | |
4879 | { OV511_I2C_BUS, 0x2d, 0x91 }, | |
4880 | { OV511_I2C_BUS, 0x2e, 0x80 }, | |
4881 | { OV511_I2C_BUS, 0x2f, 0x44 }, | |
4882 | { OV511_I2C_BUS, 0x60, 0x27 }, | |
4883 | { OV511_I2C_BUS, 0x61, 0x02 }, | |
4884 | { OV511_I2C_BUS, 0x62, 0x5f }, | |
4885 | { OV511_I2C_BUS, 0x63, 0xd5 }, | |
4886 | { OV511_I2C_BUS, 0x64, 0x57 }, | |
4887 | { OV511_I2C_BUS, 0x65, 0x83 }, | |
4888 | { OV511_I2C_BUS, 0x66, 0x55 }, | |
4889 | { OV511_I2C_BUS, 0x67, 0x92 }, | |
4890 | { OV511_I2C_BUS, 0x68, 0xcf }, | |
4891 | { OV511_I2C_BUS, 0x69, 0x76 }, | |
4892 | { OV511_I2C_BUS, 0x6a, 0x22 }, | |
4893 | { OV511_I2C_BUS, 0x6b, 0x00 }, | |
4894 | { OV511_I2C_BUS, 0x6c, 0x02 }, | |
4895 | { OV511_I2C_BUS, 0x6d, 0x44 }, | |
4896 | { OV511_I2C_BUS, 0x6e, 0x80 }, | |
4897 | { OV511_I2C_BUS, 0x6f, 0x1d }, | |
4898 | { OV511_I2C_BUS, 0x70, 0x8b }, | |
4899 | { OV511_I2C_BUS, 0x71, 0x00 }, | |
4900 | { OV511_I2C_BUS, 0x72, 0x14 }, | |
4901 | { OV511_I2C_BUS, 0x73, 0x54 }, | |
4902 | { OV511_I2C_BUS, 0x74, 0x00 }, | |
4903 | { OV511_I2C_BUS, 0x75, 0x8e }, | |
4904 | { OV511_I2C_BUS, 0x76, 0x00 }, | |
4905 | { OV511_I2C_BUS, 0x77, 0xff }, | |
4906 | { OV511_I2C_BUS, 0x78, 0x80 }, | |
4907 | { OV511_I2C_BUS, 0x79, 0x80 }, | |
4908 | { OV511_I2C_BUS, 0x7a, 0x80 }, | |
4909 | { OV511_I2C_BUS, 0x7b, 0xe2 }, | |
4910 | { OV511_I2C_BUS, 0x7c, 0x00 }, | |
4911 | { OV511_DONE_BUS, 0x0, 0x00 }, | |
4912 | }; | |
4913 | ||
4914 | PDEBUG(4, "starting configuration"); | |
4915 | ||
4916 | /* This looks redundant, but is necessary for WebCam 3 */ | |
4917 | ov->primary_i2c_slave = OV7xx0_SID; | |
4918 | if (ov51x_set_slave_ids(ov, OV7xx0_SID) < 0) | |
4919 | return -1; | |
4920 | ||
4921 | if (init_ov_sensor(ov) >= 0) { | |
4922 | PDEBUG(1, "OV7xx0 sensor initalized (method 1)"); | |
4923 | } else { | |
4924 | /* Reset the 76xx */ | |
4925 | if (i2c_w(ov, 0x12, 0x80) < 0) | |
4926 | return -1; | |
4927 | ||
4928 | /* Wait for it to initialize */ | |
4929 | msleep(150); | |
4930 | ||
4931 | i = 0; | |
4932 | success = 0; | |
4933 | while (i <= i2c_detect_tries) { | |
4934 | if ((i2c_r(ov, OV7610_REG_ID_HIGH) == 0x7F) && | |
4935 | (i2c_r(ov, OV7610_REG_ID_LOW) == 0xA2)) { | |
4936 | success = 1; | |
4937 | break; | |
4938 | } else { | |
4939 | i++; | |
4940 | } | |
4941 | } | |
4942 | ||
4943 | // Was (i == i2c_detect_tries) previously. This obviously used to always report | |
4944 | // success. Whether anyone actually depended on that bug is unknown | |
4945 | if ((i >= i2c_detect_tries) && (success == 0)) { | |
4946 | err("Failed to read sensor ID. You might not have an"); | |
4947 | err("OV7610/20, or it may be not responding. Report"); | |
4948 | err("this to " EMAIL); | |
4949 | err("This is only a warning. You can attempt to use"); | |
4950 | err("your camera anyway"); | |
4951 | // Only issue a warning for now | |
4952 | // return -1; | |
4953 | } else { | |
4954 | PDEBUG(1, "OV7xx0 initialized (method 2, %dx)", i+1); | |
4955 | } | |
4956 | } | |
4957 | ||
4958 | /* Detect sensor (sub)type */ | |
4959 | rc = i2c_r(ov, OV7610_REG_COM_I); | |
4960 | ||
4961 | if (rc < 0) { | |
4962 | err("Error detecting sensor type"); | |
4963 | return -1; | |
4964 | } else if ((rc & 3) == 3) { | |
4965 | info("Sensor is an OV7610"); | |
4966 | ov->sensor = SEN_OV7610; | |
4967 | } else if ((rc & 3) == 1) { | |
4968 | /* I don't know what's different about the 76BE yet. */ | |
4969 | if (i2c_r(ov, 0x15) & 1) | |
4970 | info("Sensor is an OV7620AE"); | |
4971 | else | |
4972 | info("Sensor is an OV76BE"); | |
4973 | ||
4974 | /* OV511+ will return all zero isoc data unless we | |
4975 | * configure the sensor as a 7620. Someone needs to | |
4976 | * find the exact reg. setting that causes this. */ | |
4977 | if (ov->bridge == BRG_OV511PLUS) { | |
4978 | info("Enabling 511+/7620AE workaround"); | |
4979 | ov->sensor = SEN_OV7620; | |
4980 | } else { | |
4981 | ov->sensor = SEN_OV76BE; | |
4982 | } | |
4983 | } else if ((rc & 3) == 0) { | |
4984 | info("Sensor is an OV7620"); | |
4985 | ov->sensor = SEN_OV7620; | |
4986 | } else { | |
4987 | err("Unknown image sensor version: %d", rc & 3); | |
4988 | return -1; | |
4989 | } | |
4990 | ||
4991 | if (ov->sensor == SEN_OV7620) { | |
4992 | PDEBUG(4, "Writing 7620 registers"); | |
4993 | if (write_regvals(ov, aRegvalsNorm7620)) | |
4994 | return -1; | |
4995 | } else { | |
4996 | PDEBUG(4, "Writing 7610 registers"); | |
4997 | if (write_regvals(ov, aRegvalsNorm7610)) | |
4998 | return -1; | |
4999 | } | |
5000 | ||
5001 | /* Set sensor-specific vars */ | |
5002 | ov->maxwidth = 640; | |
5003 | ov->maxheight = 480; | |
5004 | ov->minwidth = 64; | |
5005 | ov->minheight = 48; | |
5006 | ||
5007 | // FIXME: These do not match the actual settings yet | |
5008 | ov->brightness = 0x80 << 8; | |
5009 | ov->contrast = 0x80 << 8; | |
5010 | ov->colour = 0x80 << 8; | |
5011 | ov->hue = 0x80 << 8; | |
5012 | ||
5013 | return 0; | |
5014 | } | |
5015 | ||
5016 | /* This initializes the OV6620, OV6630, OV6630AE, or OV6630AF sensor. */ | |
5017 | static int | |
5018 | ov6xx0_configure(struct usb_ov511 *ov) | |
5019 | { | |
5020 | int rc; | |
5021 | ||
5022 | static struct ov511_regvals aRegvalsNorm6x20[] = { | |
5023 | { OV511_I2C_BUS, 0x12, 0x80 }, /* reset */ | |
5024 | { OV511_I2C_BUS, 0x11, 0x01 }, | |
5025 | { OV511_I2C_BUS, 0x03, 0x60 }, | |
5026 | { OV511_I2C_BUS, 0x05, 0x7f }, /* For when autoadjust is off */ | |
5027 | { OV511_I2C_BUS, 0x07, 0xa8 }, | |
5028 | /* The ratio of 0x0c and 0x0d controls the white point */ | |
5029 | { OV511_I2C_BUS, 0x0c, 0x24 }, | |
5030 | { OV511_I2C_BUS, 0x0d, 0x24 }, | |
5031 | { OV511_I2C_BUS, 0x0f, 0x15 }, /* COMS */ | |
5032 | { OV511_I2C_BUS, 0x10, 0x75 }, /* AEC Exposure time */ | |
5033 | { OV511_I2C_BUS, 0x12, 0x24 }, /* Enable AGC */ | |
5034 | { OV511_I2C_BUS, 0x14, 0x04 }, | |
5035 | /* 0x16: 0x06 helps frame stability with moving objects */ | |
5036 | { OV511_I2C_BUS, 0x16, 0x06 }, | |
5037 | // { OV511_I2C_BUS, 0x20, 0x30 }, /* Aperture correction enable */ | |
5038 | { OV511_I2C_BUS, 0x26, 0xb2 }, /* BLC enable */ | |
5039 | /* 0x28: 0x05 Selects RGB format if RGB on */ | |
5040 | { OV511_I2C_BUS, 0x28, 0x05 }, | |
5041 | { OV511_I2C_BUS, 0x2a, 0x04 }, /* Disable framerate adjust */ | |
5042 | // { OV511_I2C_BUS, 0x2b, 0xac }, /* Framerate; Set 2a[7] first */ | |
5043 | { OV511_I2C_BUS, 0x2d, 0x99 }, | |
093cf723 | 5044 | { OV511_I2C_BUS, 0x33, 0xa0 }, /* Color Processing Parameter */ |
1da177e4 LT |
5045 | { OV511_I2C_BUS, 0x34, 0xd2 }, /* Max A/D range */ |
5046 | { OV511_I2C_BUS, 0x38, 0x8b }, | |
5047 | { OV511_I2C_BUS, 0x39, 0x40 }, | |
5048 | ||
5049 | { OV511_I2C_BUS, 0x3c, 0x39 }, /* Enable AEC mode changing */ | |
5050 | { OV511_I2C_BUS, 0x3c, 0x3c }, /* Change AEC mode */ | |
5051 | { OV511_I2C_BUS, 0x3c, 0x24 }, /* Disable AEC mode changing */ | |
5052 | ||
5053 | { OV511_I2C_BUS, 0x3d, 0x80 }, | |
5054 | /* These next two registers (0x4a, 0x4b) are undocumented. They | |
5055 | * control the color balance */ | |
5056 | { OV511_I2C_BUS, 0x4a, 0x80 }, | |
5057 | { OV511_I2C_BUS, 0x4b, 0x80 }, | |
5058 | { OV511_I2C_BUS, 0x4d, 0xd2 }, /* This reduces noise a bit */ | |
5059 | { OV511_I2C_BUS, 0x4e, 0xc1 }, | |
5060 | { OV511_I2C_BUS, 0x4f, 0x04 }, | |
5061 | // Do 50-53 have any effect? | |
5062 | // Toggle 0x12[2] off and on here? | |
5063 | { OV511_DONE_BUS, 0x0, 0x00 }, /* END MARKER */ | |
5064 | }; | |
5065 | ||
5066 | static struct ov511_regvals aRegvalsNorm6x30[] = { | |
5067 | /*OK*/ { OV511_I2C_BUS, 0x12, 0x80 }, /* reset */ | |
5068 | { OV511_I2C_BUS, 0x11, 0x00 }, | |
5069 | /*OK*/ { OV511_I2C_BUS, 0x03, 0x60 }, | |
5070 | /*0A?*/ { OV511_I2C_BUS, 0x05, 0x7f }, /* For when autoadjust is off */ | |
5071 | { OV511_I2C_BUS, 0x07, 0xa8 }, | |
5072 | /* The ratio of 0x0c and 0x0d controls the white point */ | |
5073 | /*OK*/ { OV511_I2C_BUS, 0x0c, 0x24 }, | |
5074 | /*OK*/ { OV511_I2C_BUS, 0x0d, 0x24 }, | |
5075 | /*A*/ { OV511_I2C_BUS, 0x0e, 0x20 }, | |
5076 | // /*04?*/ { OV511_I2C_BUS, 0x14, 0x80 }, | |
5077 | { OV511_I2C_BUS, 0x16, 0x03 }, | |
5078 | // /*OK*/ { OV511_I2C_BUS, 0x20, 0x30 }, /* Aperture correction enable */ | |
5079 | // 21 & 22? The suggested values look wrong. Go with default | |
5080 | /*A*/ { OV511_I2C_BUS, 0x23, 0xc0 }, | |
5081 | /*A*/ { OV511_I2C_BUS, 0x25, 0x9a }, // Check this against default | |
5082 | // /*OK*/ { OV511_I2C_BUS, 0x26, 0xb2 }, /* BLC enable */ | |
5083 | ||
5084 | /* 0x28: 0x05 Selects RGB format if RGB on */ | |
5085 | // /*04?*/ { OV511_I2C_BUS, 0x28, 0x05 }, | |
5086 | // /*04?*/ { OV511_I2C_BUS, 0x28, 0x45 }, // DEBUG: Tristate UV bus | |
5087 | ||
5088 | /*OK*/ { OV511_I2C_BUS, 0x2a, 0x04 }, /* Disable framerate adjust */ | |
5089 | // /*OK*/ { OV511_I2C_BUS, 0x2b, 0xac }, /* Framerate; Set 2a[7] first */ | |
5090 | { OV511_I2C_BUS, 0x2d, 0x99 }, | |
5091 | // /*A*/ { OV511_I2C_BUS, 0x33, 0x26 }, // Reserved bits on 6620 | |
5092 | // /*d2?*/ { OV511_I2C_BUS, 0x34, 0x03 }, /* Max A/D range */ | |
5093 | // /*8b?*/ { OV511_I2C_BUS, 0x38, 0x83 }, | |
5094 | // /*40?*/ { OV511_I2C_BUS, 0x39, 0xc0 }, // 6630 adds bit 7 | |
5095 | // { OV511_I2C_BUS, 0x3c, 0x39 }, /* Enable AEC mode changing */ | |
5096 | // { OV511_I2C_BUS, 0x3c, 0x3c }, /* Change AEC mode */ | |
5097 | // { OV511_I2C_BUS, 0x3c, 0x24 }, /* Disable AEC mode changing */ | |
5098 | { OV511_I2C_BUS, 0x3d, 0x80 }, | |
5099 | // /*A*/ { OV511_I2C_BUS, 0x3f, 0x0e }, | |
5100 | ||
5101 | /* These next two registers (0x4a, 0x4b) are undocumented. They | |
5102 | * control the color balance */ | |
5103 | // /*OK?*/ { OV511_I2C_BUS, 0x4a, 0x80 }, // Check these | |
5104 | // /*OK?*/ { OV511_I2C_BUS, 0x4b, 0x80 }, | |
5105 | { OV511_I2C_BUS, 0x4d, 0x10 }, /* U = 0.563u, V = 0.714v */ | |
5106 | /*c1?*/ { OV511_I2C_BUS, 0x4e, 0x40 }, | |
5107 | ||
5108 | /* UV average mode, color killer: strongest */ | |
5109 | { OV511_I2C_BUS, 0x4f, 0x07 }, | |
5110 | ||
5111 | { OV511_I2C_BUS, 0x54, 0x23 }, /* Max AGC gain: 18dB */ | |
5112 | { OV511_I2C_BUS, 0x57, 0x81 }, /* (default) */ | |
5113 | { OV511_I2C_BUS, 0x59, 0x01 }, /* AGC dark current comp: +1 */ | |
5114 | { OV511_I2C_BUS, 0x5a, 0x2c }, /* (undocumented) */ | |
5115 | { OV511_I2C_BUS, 0x5b, 0x0f }, /* AWB chrominance levels */ | |
5116 | // { OV511_I2C_BUS, 0x5c, 0x10 }, | |
5117 | { OV511_DONE_BUS, 0x0, 0x00 }, /* END MARKER */ | |
5118 | }; | |
5119 | ||
5120 | PDEBUG(4, "starting sensor configuration"); | |
5121 | ||
5122 | if (init_ov_sensor(ov) < 0) { | |
5123 | err("Failed to read sensor ID. You might not have an OV6xx0,"); | |
5124 | err("or it may be not responding. Report this to " EMAIL); | |
5125 | return -1; | |
5126 | } else { | |
5127 | PDEBUG(1, "OV6xx0 sensor detected"); | |
5128 | } | |
5129 | ||
5130 | /* Detect sensor (sub)type */ | |
5131 | rc = i2c_r(ov, OV7610_REG_COM_I); | |
5132 | ||
5133 | if (rc < 0) { | |
5134 | err("Error detecting sensor type"); | |
5135 | return -1; | |
5136 | } | |
5137 | ||
5138 | if ((rc & 3) == 0) { | |
5139 | ov->sensor = SEN_OV6630; | |
5140 | info("Sensor is an OV6630"); | |
5141 | } else if ((rc & 3) == 1) { | |
5142 | ov->sensor = SEN_OV6620; | |
5143 | info("Sensor is an OV6620"); | |
5144 | } else if ((rc & 3) == 2) { | |
5145 | ov->sensor = SEN_OV6630; | |
5146 | info("Sensor is an OV6630AE"); | |
5147 | } else if ((rc & 3) == 3) { | |
5148 | ov->sensor = SEN_OV6630; | |
5149 | info("Sensor is an OV6630AF"); | |
5150 | } | |
5151 | ||
5152 | /* Set sensor-specific vars */ | |
5153 | ov->maxwidth = 352; | |
5154 | ov->maxheight = 288; | |
5155 | ov->minwidth = 64; | |
5156 | ov->minheight = 48; | |
5157 | ||
5158 | // FIXME: These do not match the actual settings yet | |
5159 | ov->brightness = 0x80 << 8; | |
5160 | ov->contrast = 0x80 << 8; | |
5161 | ov->colour = 0x80 << 8; | |
5162 | ov->hue = 0x80 << 8; | |
5163 | ||
5164 | if (ov->sensor == SEN_OV6620) { | |
5165 | PDEBUG(4, "Writing 6x20 registers"); | |
5166 | if (write_regvals(ov, aRegvalsNorm6x20)) | |
5167 | return -1; | |
5168 | } else { | |
5169 | PDEBUG(4, "Writing 6x30 registers"); | |
5170 | if (write_regvals(ov, aRegvalsNorm6x30)) | |
5171 | return -1; | |
5172 | } | |
5173 | ||
5174 | return 0; | |
5175 | } | |
5176 | ||
5177 | /* This initializes the KS0127 and KS0127B video decoders. */ | |
5178 | static int | |
5179 | ks0127_configure(struct usb_ov511 *ov) | |
5180 | { | |
5181 | int rc; | |
5182 | ||
5183 | // FIXME: I don't know how to sync or reset it yet | |
5184 | #if 0 | |
5185 | if (ov51x_init_ks_sensor(ov) < 0) { | |
5186 | err("Failed to initialize the KS0127"); | |
5187 | return -1; | |
5188 | } else { | |
5189 | PDEBUG(1, "KS012x(B) sensor detected"); | |
5190 | } | |
5191 | #endif | |
5192 | ||
5193 | /* Detect decoder subtype */ | |
5194 | rc = i2c_r(ov, 0x00); | |
5195 | if (rc < 0) { | |
5196 | err("Error detecting sensor type"); | |
5197 | return -1; | |
5198 | } else if (rc & 0x08) { | |
5199 | rc = i2c_r(ov, 0x3d); | |
5200 | if (rc < 0) { | |
5201 | err("Error detecting sensor type"); | |
5202 | return -1; | |
5203 | } else if ((rc & 0x0f) == 0) { | |
5204 | info("Sensor is a KS0127"); | |
5205 | ov->sensor = SEN_KS0127; | |
5206 | } else if ((rc & 0x0f) == 9) { | |
5207 | info("Sensor is a KS0127B Rev. A"); | |
5208 | ov->sensor = SEN_KS0127B; | |
5209 | } | |
5210 | } else { | |
5211 | err("Error: Sensor is an unsupported KS0122"); | |
5212 | return -1; | |
5213 | } | |
5214 | ||
5215 | /* Set sensor-specific vars */ | |
5216 | ov->maxwidth = 640; | |
5217 | ov->maxheight = 480; | |
5218 | ov->minwidth = 64; | |
5219 | ov->minheight = 48; | |
5220 | ||
5221 | // FIXME: These do not match the actual settings yet | |
5222 | ov->brightness = 0x80 << 8; | |
5223 | ov->contrast = 0x80 << 8; | |
5224 | ov->colour = 0x80 << 8; | |
5225 | ov->hue = 0x80 << 8; | |
5226 | ||
5227 | /* This device is not supported yet. Bail out now... */ | |
5228 | err("This sensor is not supported yet."); | |
5229 | return -1; | |
5230 | ||
5231 | return 0; | |
5232 | } | |
5233 | ||
5234 | /* This initializes the SAA7111A video decoder. */ | |
5235 | static int | |
5236 | saa7111a_configure(struct usb_ov511 *ov) | |
5237 | { | |
5238 | int rc; | |
5239 | ||
5240 | /* Since there is no register reset command, all registers must be | |
5241 | * written, otherwise gives erratic results */ | |
5242 | static struct ov511_regvals aRegvalsNormSAA7111A[] = { | |
5243 | { OV511_I2C_BUS, 0x06, 0xce }, | |
5244 | { OV511_I2C_BUS, 0x07, 0x00 }, | |
5245 | { OV511_I2C_BUS, 0x10, 0x44 }, /* YUV422, 240/286 lines */ | |
5246 | { OV511_I2C_BUS, 0x0e, 0x01 }, /* NTSC M or PAL BGHI */ | |
5247 | { OV511_I2C_BUS, 0x00, 0x00 }, | |
5248 | { OV511_I2C_BUS, 0x01, 0x00 }, | |
5249 | { OV511_I2C_BUS, 0x03, 0x23 }, | |
5250 | { OV511_I2C_BUS, 0x04, 0x00 }, | |
5251 | { OV511_I2C_BUS, 0x05, 0x00 }, | |
5252 | { OV511_I2C_BUS, 0x08, 0xc8 }, /* Auto field freq */ | |
5253 | { OV511_I2C_BUS, 0x09, 0x01 }, /* Chrom. trap off, APER=0.25 */ | |
5254 | { OV511_I2C_BUS, 0x0a, 0x80 }, /* BRIG=128 */ | |
5255 | { OV511_I2C_BUS, 0x0b, 0x40 }, /* CONT=1.0 */ | |
5256 | { OV511_I2C_BUS, 0x0c, 0x40 }, /* SATN=1.0 */ | |
5257 | { OV511_I2C_BUS, 0x0d, 0x00 }, /* HUE=0 */ | |
5258 | { OV511_I2C_BUS, 0x0f, 0x00 }, | |
5259 | { OV511_I2C_BUS, 0x11, 0x0c }, | |
5260 | { OV511_I2C_BUS, 0x12, 0x00 }, | |
5261 | { OV511_I2C_BUS, 0x13, 0x00 }, | |
5262 | { OV511_I2C_BUS, 0x14, 0x00 }, | |
5263 | { OV511_I2C_BUS, 0x15, 0x00 }, | |
5264 | { OV511_I2C_BUS, 0x16, 0x00 }, | |
5265 | { OV511_I2C_BUS, 0x17, 0x00 }, | |
5266 | { OV511_I2C_BUS, 0x02, 0xc0 }, /* Composite input 0 */ | |
5267 | { OV511_DONE_BUS, 0x0, 0x00 }, | |
5268 | }; | |
5269 | ||
5270 | // FIXME: I don't know how to sync or reset it yet | |
5271 | #if 0 | |
5272 | if (ov51x_init_saa_sensor(ov) < 0) { | |
5273 | err("Failed to initialize the SAA7111A"); | |
5274 | return -1; | |
5275 | } else { | |
5276 | PDEBUG(1, "SAA7111A sensor detected"); | |
5277 | } | |
5278 | #endif | |
5279 | ||
5280 | /* 640x480 not supported with PAL */ | |
5281 | if (ov->pal) { | |
5282 | ov->maxwidth = 320; | |
5283 | ov->maxheight = 240; /* Even field only */ | |
5284 | } else { | |
5285 | ov->maxwidth = 640; | |
5286 | ov->maxheight = 480; /* Even/Odd fields */ | |
5287 | } | |
5288 | ||
5289 | ov->minwidth = 320; | |
5290 | ov->minheight = 240; /* Even field only */ | |
5291 | ||
5292 | ov->has_decoder = 1; | |
5293 | ov->num_inputs = 8; | |
5294 | ov->norm = VIDEO_MODE_AUTO; | |
5295 | ov->stop_during_set = 0; /* Decoder guarantees stable image */ | |
5296 | ||
5297 | /* Decoder doesn't change these values, so we use these instead of | |
5298 | * acutally reading the registers (which doesn't work) */ | |
5299 | ov->brightness = 0x80 << 8; | |
5300 | ov->contrast = 0x40 << 9; | |
5301 | ov->colour = 0x40 << 9; | |
5302 | ov->hue = 32768; | |
5303 | ||
5304 | PDEBUG(4, "Writing SAA7111A registers"); | |
5305 | if (write_regvals(ov, aRegvalsNormSAA7111A)) | |
5306 | return -1; | |
5307 | ||
5308 | /* Detect version of decoder. This must be done after writing the | |
5309 | * initial regs or the decoder will lock up. */ | |
5310 | rc = i2c_r(ov, 0x00); | |
5311 | ||
5312 | if (rc < 0) { | |
5313 | err("Error detecting sensor version"); | |
5314 | return -1; | |
5315 | } else { | |
5316 | info("Sensor is an SAA7111A (version 0x%x)", rc); | |
5317 | ov->sensor = SEN_SAA7111A; | |
5318 | } | |
5319 | ||
5320 | // FIXME: Fix this for OV518(+) | |
5321 | /* Latch to negative edge of clock. Otherwise, we get incorrect | |
5322 | * colors and jitter in the digital signal. */ | |
5323 | if (ov->bclass == BCL_OV511) | |
5324 | reg_w(ov, 0x11, 0x00); | |
5325 | else | |
5326 | warn("SAA7111A not yet supported with OV518/OV518+"); | |
5327 | ||
5328 | return 0; | |
5329 | } | |
5330 | ||
5331 | /* This initializes the OV511/OV511+ and the sensor */ | |
5332 | static int | |
5333 | ov511_configure(struct usb_ov511 *ov) | |
5334 | { | |
5335 | static struct ov511_regvals aRegvalsInit511[] = { | |
5336 | { OV511_REG_BUS, R51x_SYS_RESET, 0x7f }, | |
5337 | { OV511_REG_BUS, R51x_SYS_INIT, 0x01 }, | |
5338 | { OV511_REG_BUS, R51x_SYS_RESET, 0x7f }, | |
5339 | { OV511_REG_BUS, R51x_SYS_INIT, 0x01 }, | |
5340 | { OV511_REG_BUS, R51x_SYS_RESET, 0x3f }, | |
5341 | { OV511_REG_BUS, R51x_SYS_INIT, 0x01 }, | |
5342 | { OV511_REG_BUS, R51x_SYS_RESET, 0x3d }, | |
5343 | { OV511_DONE_BUS, 0x0, 0x00}, | |
5344 | }; | |
5345 | ||
5346 | static struct ov511_regvals aRegvalsNorm511[] = { | |
5347 | { OV511_REG_BUS, R511_DRAM_FLOW_CTL, 0x01 }, | |
5348 | { OV511_REG_BUS, R51x_SYS_SNAP, 0x00 }, | |
5349 | { OV511_REG_BUS, R51x_SYS_SNAP, 0x02 }, | |
5350 | { OV511_REG_BUS, R51x_SYS_SNAP, 0x00 }, | |
5351 | { OV511_REG_BUS, R511_FIFO_OPTS, 0x1f }, | |
5352 | { OV511_REG_BUS, R511_COMP_EN, 0x00 }, | |
5353 | { OV511_REG_BUS, R511_COMP_LUT_EN, 0x03 }, | |
5354 | { OV511_DONE_BUS, 0x0, 0x00 }, | |
5355 | }; | |
5356 | ||
5357 | static struct ov511_regvals aRegvalsNorm511Plus[] = { | |
5358 | { OV511_REG_BUS, R511_DRAM_FLOW_CTL, 0xff }, | |
5359 | { OV511_REG_BUS, R51x_SYS_SNAP, 0x00 }, | |
5360 | { OV511_REG_BUS, R51x_SYS_SNAP, 0x02 }, | |
5361 | { OV511_REG_BUS, R51x_SYS_SNAP, 0x00 }, | |
5362 | { OV511_REG_BUS, R511_FIFO_OPTS, 0xff }, | |
5363 | { OV511_REG_BUS, R511_COMP_EN, 0x00 }, | |
5364 | { OV511_REG_BUS, R511_COMP_LUT_EN, 0x03 }, | |
5365 | { OV511_DONE_BUS, 0x0, 0x00 }, | |
5366 | }; | |
5367 | ||
5368 | PDEBUG(4, ""); | |
5369 | ||
5370 | ov->customid = reg_r(ov, R511_SYS_CUST_ID); | |
5371 | if (ov->customid < 0) { | |
5372 | err("Unable to read camera bridge registers"); | |
5373 | goto error; | |
5374 | } | |
5375 | ||
5376 | PDEBUG (1, "CustomID = %d", ov->customid); | |
5377 | ov->desc = symbolic(camlist, ov->customid); | |
5378 | info("model: %s", ov->desc); | |
5379 | ||
5380 | if (0 == strcmp(ov->desc, NOT_DEFINED_STR)) { | |
5381 | err("Camera type (%d) not recognized", ov->customid); | |
5382 | err("Please notify " EMAIL " of the name,"); | |
5383 | err("manufacturer, model, and this number of your camera."); | |
5384 | err("Also include the output of the detection process."); | |
5385 | } | |
5386 | ||
5387 | if (ov->customid == 70) /* USB Life TV (PAL/SECAM) */ | |
5388 | ov->pal = 1; | |
5389 | ||
5390 | if (write_regvals(ov, aRegvalsInit511)) | |
5391 | goto error; | |
5392 | ||
5393 | if (ov->led_policy == LED_OFF || ov->led_policy == LED_AUTO) | |
5394 | ov51x_led_control(ov, 0); | |
5395 | ||
5396 | /* The OV511+ has undocumented bits in the flow control register. | |
5397 | * Setting it to 0xff fixes the corruption with moving objects. */ | |
5398 | if (ov->bridge == BRG_OV511) { | |
5399 | if (write_regvals(ov, aRegvalsNorm511)) | |
5400 | goto error; | |
5401 | } else if (ov->bridge == BRG_OV511PLUS) { | |
5402 | if (write_regvals(ov, aRegvalsNorm511Plus)) | |
5403 | goto error; | |
5404 | } else { | |
5405 | err("Invalid bridge"); | |
5406 | } | |
5407 | ||
5408 | if (ov511_init_compression(ov)) | |
5409 | goto error; | |
5410 | ||
5411 | ov->packet_numbering = 1; | |
5412 | ov511_set_packet_size(ov, 0); | |
5413 | ||
5414 | ov->snap_enabled = snapshot; | |
5415 | ||
5416 | /* Test for 7xx0 */ | |
5417 | PDEBUG(3, "Testing for 0V7xx0"); | |
5418 | ov->primary_i2c_slave = OV7xx0_SID; | |
5419 | if (ov51x_set_slave_ids(ov, OV7xx0_SID) < 0) | |
5420 | goto error; | |
5421 | ||
5422 | if (i2c_w(ov, 0x12, 0x80) < 0) { | |
5423 | /* Test for 6xx0 */ | |
5424 | PDEBUG(3, "Testing for 0V6xx0"); | |
5425 | ov->primary_i2c_slave = OV6xx0_SID; | |
5426 | if (ov51x_set_slave_ids(ov, OV6xx0_SID) < 0) | |
5427 | goto error; | |
5428 | ||
5429 | if (i2c_w(ov, 0x12, 0x80) < 0) { | |
5430 | /* Test for 8xx0 */ | |
5431 | PDEBUG(3, "Testing for 0V8xx0"); | |
5432 | ov->primary_i2c_slave = OV8xx0_SID; | |
5433 | if (ov51x_set_slave_ids(ov, OV8xx0_SID) < 0) | |
5434 | goto error; | |
5435 | ||
5436 | if (i2c_w(ov, 0x12, 0x80) < 0) { | |
5437 | /* Test for SAA7111A */ | |
5438 | PDEBUG(3, "Testing for SAA7111A"); | |
5439 | ov->primary_i2c_slave = SAA7111A_SID; | |
5440 | if (ov51x_set_slave_ids(ov, SAA7111A_SID) < 0) | |
5441 | goto error; | |
5442 | ||
5443 | if (i2c_w(ov, 0x0d, 0x00) < 0) { | |
5444 | /* Test for KS0127 */ | |
5445 | PDEBUG(3, "Testing for KS0127"); | |
5446 | ov->primary_i2c_slave = KS0127_SID; | |
5447 | if (ov51x_set_slave_ids(ov, KS0127_SID) < 0) | |
5448 | goto error; | |
5449 | ||
5450 | if (i2c_w(ov, 0x10, 0x00) < 0) { | |
5451 | err("Can't determine sensor slave IDs"); | |
5452 | goto error; | |
5453 | } else { | |
5454 | if (ks0127_configure(ov) < 0) { | |
5455 | err("Failed to configure KS0127"); | |
5456 | goto error; | |
5457 | } | |
5458 | } | |
5459 | } else { | |
5460 | if (saa7111a_configure(ov) < 0) { | |
5461 | err("Failed to configure SAA7111A"); | |
5462 | goto error; | |
5463 | } | |
5464 | } | |
5465 | } else { | |
5466 | err("Detected unsupported OV8xx0 sensor"); | |
5467 | goto error; | |
5468 | } | |
5469 | } else { | |
5470 | if (ov6xx0_configure(ov) < 0) { | |
5471 | err("Failed to configure OV6xx0"); | |
5472 | goto error; | |
5473 | } | |
5474 | } | |
5475 | } else { | |
5476 | if (ov7xx0_configure(ov) < 0) { | |
5477 | err("Failed to configure OV7xx0"); | |
5478 | goto error; | |
5479 | } | |
5480 | } | |
5481 | ||
5482 | return 0; | |
5483 | ||
5484 | error: | |
5485 | err("OV511 Config failed"); | |
5486 | ||
5487 | return -EBUSY; | |
5488 | } | |
5489 | ||
5490 | /* This initializes the OV518/OV518+ and the sensor */ | |
5491 | static int | |
5492 | ov518_configure(struct usb_ov511 *ov) | |
5493 | { | |
5494 | /* For 518 and 518+ */ | |
5495 | static struct ov511_regvals aRegvalsInit518[] = { | |
5496 | { OV511_REG_BUS, R51x_SYS_RESET, 0x40 }, | |
5497 | { OV511_REG_BUS, R51x_SYS_INIT, 0xe1 }, | |
5498 | { OV511_REG_BUS, R51x_SYS_RESET, 0x3e }, | |
5499 | { OV511_REG_BUS, R51x_SYS_INIT, 0xe1 }, | |
5500 | { OV511_REG_BUS, R51x_SYS_RESET, 0x00 }, | |
5501 | { OV511_REG_BUS, R51x_SYS_INIT, 0xe1 }, | |
5502 | { OV511_REG_BUS, 0x46, 0x00 }, | |
5503 | { OV511_REG_BUS, 0x5d, 0x03 }, | |
5504 | { OV511_DONE_BUS, 0x0, 0x00}, | |
5505 | }; | |
5506 | ||
5507 | static struct ov511_regvals aRegvalsNorm518[] = { | |
5508 | { OV511_REG_BUS, R51x_SYS_SNAP, 0x02 }, /* Reset */ | |
5509 | { OV511_REG_BUS, R51x_SYS_SNAP, 0x01 }, /* Enable */ | |
5510 | { OV511_REG_BUS, 0x31, 0x0f }, | |
5511 | { OV511_REG_BUS, 0x5d, 0x03 }, | |
5512 | { OV511_REG_BUS, 0x24, 0x9f }, | |
5513 | { OV511_REG_BUS, 0x25, 0x90 }, | |
5514 | { OV511_REG_BUS, 0x20, 0x00 }, | |
5515 | { OV511_REG_BUS, 0x51, 0x04 }, | |
5516 | { OV511_REG_BUS, 0x71, 0x19 }, | |
5517 | { OV511_DONE_BUS, 0x0, 0x00 }, | |
5518 | }; | |
5519 | ||
5520 | static struct ov511_regvals aRegvalsNorm518Plus[] = { | |
5521 | { OV511_REG_BUS, R51x_SYS_SNAP, 0x02 }, /* Reset */ | |
5522 | { OV511_REG_BUS, R51x_SYS_SNAP, 0x01 }, /* Enable */ | |
5523 | { OV511_REG_BUS, 0x31, 0x0f }, | |
5524 | { OV511_REG_BUS, 0x5d, 0x03 }, | |
5525 | { OV511_REG_BUS, 0x24, 0x9f }, | |
5526 | { OV511_REG_BUS, 0x25, 0x90 }, | |
5527 | { OV511_REG_BUS, 0x20, 0x60 }, | |
5528 | { OV511_REG_BUS, 0x51, 0x02 }, | |
5529 | { OV511_REG_BUS, 0x71, 0x19 }, | |
5530 | { OV511_REG_BUS, 0x40, 0xff }, | |
5531 | { OV511_REG_BUS, 0x41, 0x42 }, | |
5532 | { OV511_REG_BUS, 0x46, 0x00 }, | |
5533 | { OV511_REG_BUS, 0x33, 0x04 }, | |
5534 | { OV511_REG_BUS, 0x21, 0x19 }, | |
5535 | { OV511_REG_BUS, 0x3f, 0x10 }, | |
5536 | { OV511_DONE_BUS, 0x0, 0x00 }, | |
5537 | }; | |
5538 | ||
5539 | PDEBUG(4, ""); | |
5540 | ||
5541 | /* First 5 bits of custom ID reg are a revision ID on OV518 */ | |
5542 | info("Device revision %d", 0x1F & reg_r(ov, R511_SYS_CUST_ID)); | |
5543 | ||
5544 | /* Give it the default description */ | |
5545 | ov->desc = symbolic(camlist, 0); | |
5546 | ||
5547 | if (write_regvals(ov, aRegvalsInit518)) | |
5548 | goto error; | |
5549 | ||
5550 | /* Set LED GPIO pin to output mode */ | |
5551 | if (reg_w_mask(ov, 0x57, 0x00, 0x02) < 0) | |
5552 | goto error; | |
5553 | ||
5554 | /* LED is off by default with OV518; have to explicitly turn it on */ | |
5555 | if (ov->led_policy == LED_OFF || ov->led_policy == LED_AUTO) | |
5556 | ov51x_led_control(ov, 0); | |
5557 | else | |
5558 | ov51x_led_control(ov, 1); | |
5559 | ||
5560 | /* Don't require compression if dumppix is enabled; otherwise it's | |
5561 | * required. OV518 has no uncompressed mode, to save RAM. */ | |
5562 | if (!dumppix && !ov->compress) { | |
5563 | ov->compress = 1; | |
5564 | warn("Compression required with OV518...enabling"); | |
5565 | } | |
5566 | ||
5567 | if (ov->bridge == BRG_OV518) { | |
5568 | if (write_regvals(ov, aRegvalsNorm518)) | |
5569 | goto error; | |
5570 | } else if (ov->bridge == BRG_OV518PLUS) { | |
5571 | if (write_regvals(ov, aRegvalsNorm518Plus)) | |
5572 | goto error; | |
5573 | } else { | |
5574 | err("Invalid bridge"); | |
5575 | } | |
5576 | ||
5577 | if (reg_w(ov, 0x2f, 0x80) < 0) | |
5578 | goto error; | |
5579 | ||
5580 | if (ov518_init_compression(ov)) | |
5581 | goto error; | |
5582 | ||
5583 | if (ov->bridge == BRG_OV518) | |
5584 | { | |
5585 | struct usb_interface *ifp; | |
5586 | struct usb_host_interface *alt; | |
5587 | __u16 mxps = 0; | |
5588 | ||
5589 | ifp = usb_ifnum_to_if(ov->dev, 0); | |
5590 | if (ifp) { | |
5591 | alt = usb_altnum_to_altsetting(ifp, 7); | |
5592 | if (alt) | |
5593 | mxps = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize); | |
5594 | } | |
5595 | ||
5596 | /* Some OV518s have packet numbering by default, some don't */ | |
5597 | if (mxps == 897) | |
5598 | ov->packet_numbering = 1; | |
5599 | else | |
5600 | ov->packet_numbering = 0; | |
5601 | } else { | |
5602 | /* OV518+ has packet numbering turned on by default */ | |
5603 | ov->packet_numbering = 1; | |
5604 | } | |
5605 | ||
5606 | ov518_set_packet_size(ov, 0); | |
5607 | ||
5608 | ov->snap_enabled = snapshot; | |
5609 | ||
5610 | /* Test for 76xx */ | |
5611 | ov->primary_i2c_slave = OV7xx0_SID; | |
5612 | if (ov51x_set_slave_ids(ov, OV7xx0_SID) < 0) | |
5613 | goto error; | |
5614 | ||
5615 | /* The OV518 must be more aggressive about sensor detection since | |
5616 | * I2C write will never fail if the sensor is not present. We have | |
5617 | * to try to initialize the sensor to detect its presence */ | |
5618 | ||
5619 | if (init_ov_sensor(ov) < 0) { | |
5620 | /* Test for 6xx0 */ | |
5621 | ov->primary_i2c_slave = OV6xx0_SID; | |
5622 | if (ov51x_set_slave_ids(ov, OV6xx0_SID) < 0) | |
5623 | goto error; | |
5624 | ||
5625 | if (init_ov_sensor(ov) < 0) { | |
5626 | /* Test for 8xx0 */ | |
5627 | ov->primary_i2c_slave = OV8xx0_SID; | |
5628 | if (ov51x_set_slave_ids(ov, OV8xx0_SID) < 0) | |
5629 | goto error; | |
5630 | ||
5631 | if (init_ov_sensor(ov) < 0) { | |
5632 | err("Can't determine sensor slave IDs"); | |
5633 | goto error; | |
5634 | } else { | |
5635 | err("Detected unsupported OV8xx0 sensor"); | |
5636 | goto error; | |
5637 | } | |
5638 | } else { | |
5639 | if (ov6xx0_configure(ov) < 0) { | |
5640 | err("Failed to configure OV6xx0"); | |
5641 | goto error; | |
5642 | } | |
5643 | } | |
5644 | } else { | |
5645 | if (ov7xx0_configure(ov) < 0) { | |
5646 | err("Failed to configure OV7xx0"); | |
5647 | goto error; | |
5648 | } | |
5649 | } | |
5650 | ||
5651 | ov->maxwidth = 352; | |
5652 | ov->maxheight = 288; | |
5653 | ||
5654 | // The OV518 cannot go as low as the sensor can | |
5655 | ov->minwidth = 160; | |
5656 | ov->minheight = 120; | |
5657 | ||
5658 | return 0; | |
5659 | ||
5660 | error: | |
5661 | err("OV518 Config failed"); | |
5662 | ||
5663 | return -EBUSY; | |
5664 | } | |
5665 | ||
5666 | /**************************************************************************** | |
5667 | * sysfs | |
5668 | ***************************************************************************/ | |
5669 | ||
5670 | static inline struct usb_ov511 *cd_to_ov(struct class_device *cd) | |
5671 | { | |
5672 | struct video_device *vdev = to_video_device(cd); | |
5673 | return video_get_drvdata(vdev); | |
5674 | } | |
5675 | ||
5676 | static ssize_t show_custom_id(struct class_device *cd, char *buf) | |
5677 | { | |
5678 | struct usb_ov511 *ov = cd_to_ov(cd); | |
5679 | return sprintf(buf, "%d\n", ov->customid); | |
5680 | } | |
5681 | static CLASS_DEVICE_ATTR(custom_id, S_IRUGO, show_custom_id, NULL); | |
5682 | ||
5683 | static ssize_t show_model(struct class_device *cd, char *buf) | |
5684 | { | |
5685 | struct usb_ov511 *ov = cd_to_ov(cd); | |
5686 | return sprintf(buf, "%s\n", ov->desc); | |
5687 | } | |
5688 | static CLASS_DEVICE_ATTR(model, S_IRUGO, show_model, NULL); | |
5689 | ||
5690 | static ssize_t show_bridge(struct class_device *cd, char *buf) | |
5691 | { | |
5692 | struct usb_ov511 *ov = cd_to_ov(cd); | |
5693 | return sprintf(buf, "%s\n", symbolic(brglist, ov->bridge)); | |
5694 | } | |
5695 | static CLASS_DEVICE_ATTR(bridge, S_IRUGO, show_bridge, NULL); | |
5696 | ||
5697 | static ssize_t show_sensor(struct class_device *cd, char *buf) | |
5698 | { | |
5699 | struct usb_ov511 *ov = cd_to_ov(cd); | |
5700 | return sprintf(buf, "%s\n", symbolic(senlist, ov->sensor)); | |
5701 | } | |
5702 | static CLASS_DEVICE_ATTR(sensor, S_IRUGO, show_sensor, NULL); | |
5703 | ||
5704 | static ssize_t show_brightness(struct class_device *cd, char *buf) | |
5705 | { | |
5706 | struct usb_ov511 *ov = cd_to_ov(cd); | |
5707 | unsigned short x; | |
5708 | ||
5709 | if (!ov->dev) | |
5710 | return -ENODEV; | |
5711 | sensor_get_brightness(ov, &x); | |
5712 | return sprintf(buf, "%d\n", x >> 8); | |
5713 | } | |
5714 | static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL); | |
5715 | ||
5716 | static ssize_t show_saturation(struct class_device *cd, char *buf) | |
5717 | { | |
5718 | struct usb_ov511 *ov = cd_to_ov(cd); | |
5719 | unsigned short x; | |
5720 | ||
5721 | if (!ov->dev) | |
5722 | return -ENODEV; | |
5723 | sensor_get_saturation(ov, &x); | |
5724 | return sprintf(buf, "%d\n", x >> 8); | |
5725 | } | |
5726 | static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL); | |
5727 | ||
5728 | static ssize_t show_contrast(struct class_device *cd, char *buf) | |
5729 | { | |
5730 | struct usb_ov511 *ov = cd_to_ov(cd); | |
5731 | unsigned short x; | |
5732 | ||
5733 | if (!ov->dev) | |
5734 | return -ENODEV; | |
5735 | sensor_get_contrast(ov, &x); | |
5736 | return sprintf(buf, "%d\n", x >> 8); | |
5737 | } | |
5738 | static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL); | |
5739 | ||
5740 | static ssize_t show_hue(struct class_device *cd, char *buf) | |
5741 | { | |
5742 | struct usb_ov511 *ov = cd_to_ov(cd); | |
5743 | unsigned short x; | |
5744 | ||
5745 | if (!ov->dev) | |
5746 | return -ENODEV; | |
5747 | sensor_get_hue(ov, &x); | |
5748 | return sprintf(buf, "%d\n", x >> 8); | |
5749 | } | |
5750 | static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); | |
5751 | ||
5752 | static ssize_t show_exposure(struct class_device *cd, char *buf) | |
5753 | { | |
5754 | struct usb_ov511 *ov = cd_to_ov(cd); | |
5755 | unsigned char exp; | |
5756 | ||
5757 | if (!ov->dev) | |
5758 | return -ENODEV; | |
5759 | sensor_get_exposure(ov, &exp); | |
5760 | return sprintf(buf, "%d\n", exp >> 8); | |
5761 | } | |
5762 | static CLASS_DEVICE_ATTR(exposure, S_IRUGO, show_exposure, NULL); | |
5763 | ||
5764 | static void ov_create_sysfs(struct video_device *vdev) | |
5765 | { | |
5766 | video_device_create_file(vdev, &class_device_attr_custom_id); | |
5767 | video_device_create_file(vdev, &class_device_attr_model); | |
5768 | video_device_create_file(vdev, &class_device_attr_bridge); | |
5769 | video_device_create_file(vdev, &class_device_attr_sensor); | |
5770 | video_device_create_file(vdev, &class_device_attr_brightness); | |
5771 | video_device_create_file(vdev, &class_device_attr_saturation); | |
5772 | video_device_create_file(vdev, &class_device_attr_contrast); | |
5773 | video_device_create_file(vdev, &class_device_attr_hue); | |
5774 | video_device_create_file(vdev, &class_device_attr_exposure); | |
5775 | } | |
5776 | ||
5777 | /**************************************************************************** | |
5778 | * USB routines | |
5779 | ***************************************************************************/ | |
5780 | ||
5781 | static int | |
5782 | ov51x_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
5783 | { | |
5784 | struct usb_device *dev = interface_to_usbdev(intf); | |
5785 | struct usb_interface_descriptor *idesc; | |
5786 | struct usb_ov511 *ov; | |
5787 | int i; | |
5788 | ||
5789 | PDEBUG(1, "probing for device..."); | |
5790 | ||
5791 | /* We don't handle multi-config cameras */ | |
5792 | if (dev->descriptor.bNumConfigurations != 1) | |
5793 | return -ENODEV; | |
5794 | ||
5795 | idesc = &intf->cur_altsetting->desc; | |
5796 | ||
5797 | if (idesc->bInterfaceClass != 0xFF) | |
5798 | return -ENODEV; | |
5799 | if (idesc->bInterfaceSubClass != 0x00) | |
5800 | return -ENODEV; | |
5801 | ||
5802 | if ((ov = kmalloc(sizeof(*ov), GFP_KERNEL)) == NULL) { | |
5803 | err("couldn't kmalloc ov struct"); | |
5804 | goto error_out; | |
5805 | } | |
5806 | ||
5807 | memset(ov, 0, sizeof(*ov)); | |
5808 | ||
5809 | ov->dev = dev; | |
5810 | ov->iface = idesc->bInterfaceNumber; | |
5811 | ov->led_policy = led; | |
5812 | ov->compress = compress; | |
5813 | ov->lightfreq = lightfreq; | |
5814 | ov->num_inputs = 1; /* Video decoder init functs. change this */ | |
5815 | ov->stop_during_set = !fastset; | |
5816 | ov->backlight = backlight; | |
5817 | ov->mirror = mirror; | |
5818 | ov->auto_brt = autobright; | |
5819 | ov->auto_gain = autogain; | |
5820 | ov->auto_exp = autoexp; | |
5821 | ||
5822 | switch (le16_to_cpu(dev->descriptor.idProduct)) { | |
5823 | case PROD_OV511: | |
5824 | ov->bridge = BRG_OV511; | |
5825 | ov->bclass = BCL_OV511; | |
5826 | break; | |
5827 | case PROD_OV511PLUS: | |
5828 | ov->bridge = BRG_OV511PLUS; | |
5829 | ov->bclass = BCL_OV511; | |
5830 | break; | |
5831 | case PROD_OV518: | |
5832 | ov->bridge = BRG_OV518; | |
5833 | ov->bclass = BCL_OV518; | |
5834 | break; | |
5835 | case PROD_OV518PLUS: | |
5836 | ov->bridge = BRG_OV518PLUS; | |
5837 | ov->bclass = BCL_OV518; | |
5838 | break; | |
5839 | case PROD_ME2CAM: | |
5840 | if (le16_to_cpu(dev->descriptor.idVendor) != VEND_MATTEL) | |
5841 | goto error; | |
5842 | ov->bridge = BRG_OV511PLUS; | |
5843 | ov->bclass = BCL_OV511; | |
5844 | break; | |
5845 | default: | |
5846 | err("Unknown product ID 0x%04x", le16_to_cpu(dev->descriptor.idProduct)); | |
5847 | goto error; | |
5848 | } | |
5849 | ||
5850 | info("USB %s video device found", symbolic(brglist, ov->bridge)); | |
5851 | ||
5852 | init_waitqueue_head(&ov->wq); | |
5853 | ||
5854 | init_MUTEX(&ov->lock); /* to 1 == available */ | |
5855 | init_MUTEX(&ov->buf_lock); | |
5856 | init_MUTEX(&ov->param_lock); | |
5857 | init_MUTEX(&ov->i2c_lock); | |
5858 | init_MUTEX(&ov->cbuf_lock); | |
5859 | ||
5860 | ov->buf_state = BUF_NOT_ALLOCATED; | |
5861 | ||
5862 | if (usb_make_path(dev, ov->usb_path, OV511_USB_PATH_LEN) < 0) { | |
5863 | err("usb_make_path error"); | |
5864 | goto error; | |
5865 | } | |
5866 | ||
5867 | /* Allocate control transfer buffer. */ | |
5868 | /* Must be kmalloc()'ed, for DMA compatibility */ | |
5869 | ov->cbuf = kmalloc(OV511_CBUF_SIZE, GFP_KERNEL); | |
5870 | if (!ov->cbuf) | |
5871 | goto error; | |
5872 | ||
5873 | if (ov->bclass == BCL_OV518) { | |
5874 | if (ov518_configure(ov) < 0) | |
5875 | goto error; | |
5876 | } else { | |
5877 | if (ov511_configure(ov) < 0) | |
5878 | goto error; | |
5879 | } | |
5880 | ||
5881 | for (i = 0; i < OV511_NUMFRAMES; i++) { | |
5882 | ov->frame[i].framenum = i; | |
5883 | init_waitqueue_head(&ov->frame[i].wq); | |
5884 | } | |
5885 | ||
5886 | for (i = 0; i < OV511_NUMSBUF; i++) { | |
5887 | ov->sbuf[i].ov = ov; | |
5888 | spin_lock_init(&ov->sbuf[i].lock); | |
5889 | ov->sbuf[i].n = i; | |
5890 | } | |
5891 | ||
5892 | /* Unnecessary? (This is done on open(). Need to make sure variables | |
5893 | * are properly initialized without this before removing it, though). */ | |
5894 | if (ov51x_set_default_params(ov) < 0) | |
5895 | goto error; | |
5896 | ||
5897 | #ifdef OV511_DEBUG | |
5898 | if (dump_bridge) { | |
5899 | if (ov->bclass == BCL_OV511) | |
5900 | ov511_dump_regs(ov); | |
5901 | else | |
5902 | ov518_dump_regs(ov); | |
5903 | } | |
5904 | #endif | |
5905 | ||
5906 | ov->vdev = video_device_alloc(); | |
5907 | if (!ov->vdev) | |
5908 | goto error; | |
5909 | ||
5910 | memcpy(ov->vdev, &vdev_template, sizeof(*ov->vdev)); | |
5911 | ov->vdev->dev = &dev->dev; | |
5912 | video_set_drvdata(ov->vdev, ov); | |
5913 | ||
5914 | for (i = 0; i < OV511_MAX_UNIT_VIDEO; i++) { | |
5915 | /* Minor 0 cannot be specified; assume user wants autodetect */ | |
5916 | if (unit_video[i] == 0) | |
5917 | break; | |
5918 | ||
5919 | if (video_register_device(ov->vdev, VFL_TYPE_GRABBER, | |
5920 | unit_video[i]) >= 0) { | |
5921 | break; | |
5922 | } | |
5923 | } | |
5924 | ||
5925 | /* Use the next available one */ | |
5926 | if ((ov->vdev->minor == -1) && | |
5927 | video_register_device(ov->vdev, VFL_TYPE_GRABBER, -1) < 0) { | |
5928 | err("video_register_device failed"); | |
5929 | goto error; | |
5930 | } | |
5931 | ||
5932 | info("Device at %s registered to minor %d", ov->usb_path, | |
5933 | ov->vdev->minor); | |
5934 | ||
5935 | usb_set_intfdata(intf, ov); | |
5936 | ov_create_sysfs(ov->vdev); | |
5937 | return 0; | |
5938 | ||
5939 | error: | |
5940 | if (ov->vdev) { | |
5941 | if (-1 == ov->vdev->minor) | |
5942 | video_device_release(ov->vdev); | |
5943 | else | |
5944 | video_unregister_device(ov->vdev); | |
5945 | ov->vdev = NULL; | |
5946 | } | |
5947 | ||
5948 | if (ov->cbuf) { | |
5949 | down(&ov->cbuf_lock); | |
5950 | kfree(ov->cbuf); | |
5951 | ov->cbuf = NULL; | |
5952 | up(&ov->cbuf_lock); | |
5953 | } | |
5954 | ||
1bc3c9e1 JJ |
5955 | kfree(ov); |
5956 | ov = NULL; | |
1da177e4 LT |
5957 | |
5958 | error_out: | |
5959 | err("Camera initialization failed"); | |
5960 | return -EIO; | |
5961 | } | |
5962 | ||
5963 | static void | |
5964 | ov51x_disconnect(struct usb_interface *intf) | |
5965 | { | |
5966 | struct usb_ov511 *ov = usb_get_intfdata(intf); | |
5967 | int n; | |
5968 | ||
5969 | PDEBUG(3, ""); | |
5970 | ||
5971 | usb_set_intfdata (intf, NULL); | |
5972 | ||
5973 | if (!ov) | |
5974 | return; | |
5975 | ||
5976 | if (ov->vdev) | |
5977 | video_unregister_device(ov->vdev); | |
5978 | ||
5979 | for (n = 0; n < OV511_NUMFRAMES; n++) | |
5980 | ov->frame[n].grabstate = FRAME_ERROR; | |
5981 | ||
5982 | ov->curframe = -1; | |
5983 | ||
5984 | /* This will cause the process to request another frame */ | |
5985 | for (n = 0; n < OV511_NUMFRAMES; n++) | |
5986 | wake_up_interruptible(&ov->frame[n].wq); | |
5987 | ||
5988 | wake_up_interruptible(&ov->wq); | |
5989 | ||
5990 | ov->streaming = 0; | |
5991 | ov51x_unlink_isoc(ov); | |
5992 | ||
5993 | ov->dev = NULL; | |
5994 | ||
5995 | /* Free the memory */ | |
5996 | if (ov && !ov->user) { | |
5997 | down(&ov->cbuf_lock); | |
5998 | kfree(ov->cbuf); | |
5999 | ov->cbuf = NULL; | |
6000 | up(&ov->cbuf_lock); | |
6001 | ||
6002 | ov51x_dealloc(ov); | |
6003 | kfree(ov); | |
6004 | ov = NULL; | |
6005 | } | |
6006 | ||
6007 | PDEBUG(3, "Disconnect complete"); | |
6008 | } | |
6009 | ||
6010 | static struct usb_driver ov511_driver = { | |
6011 | .owner = THIS_MODULE, | |
6012 | .name = "ov511", | |
6013 | .id_table = device_table, | |
6014 | .probe = ov51x_probe, | |
6015 | .disconnect = ov51x_disconnect | |
6016 | }; | |
6017 | ||
6018 | /**************************************************************************** | |
6019 | * | |
6020 | * Module routines | |
6021 | * | |
6022 | ***************************************************************************/ | |
6023 | ||
6024 | /* Returns 0 for success */ | |
6025 | int | |
6026 | ov511_register_decomp_module(int ver, struct ov51x_decomp_ops *ops, int ov518, | |
6027 | int mmx) | |
6028 | { | |
6029 | if (ver != DECOMP_INTERFACE_VER) { | |
6030 | err("Decompression module has incompatible"); | |
6031 | err("interface version %d", ver); | |
6032 | err("Interface version %d is required", DECOMP_INTERFACE_VER); | |
6033 | return -EINVAL; | |
6034 | } | |
6035 | ||
6036 | if (!ops) | |
6037 | return -EFAULT; | |
6038 | ||
6039 | if (mmx && !ov51x_mmx_available) { | |
6040 | err("MMX not available on this system or kernel"); | |
6041 | return -EINVAL; | |
6042 | } | |
6043 | ||
6044 | lock_kernel(); | |
6045 | ||
6046 | if (ov518) { | |
6047 | if (mmx) { | |
6048 | if (ov518_mmx_decomp_ops) | |
6049 | goto err_in_use; | |
6050 | else | |
6051 | ov518_mmx_decomp_ops = ops; | |
6052 | } else { | |
6053 | if (ov518_decomp_ops) | |
6054 | goto err_in_use; | |
6055 | else | |
6056 | ov518_decomp_ops = ops; | |
6057 | } | |
6058 | } else { | |
6059 | if (mmx) { | |
6060 | if (ov511_mmx_decomp_ops) | |
6061 | goto err_in_use; | |
6062 | else | |
6063 | ov511_mmx_decomp_ops = ops; | |
6064 | } else { | |
6065 | if (ov511_decomp_ops) | |
6066 | goto err_in_use; | |
6067 | else | |
6068 | ov511_decomp_ops = ops; | |
6069 | } | |
6070 | } | |
6071 | ||
6072 | unlock_kernel(); | |
6073 | return 0; | |
6074 | ||
6075 | err_in_use: | |
6076 | unlock_kernel(); | |
6077 | return -EBUSY; | |
6078 | } | |
6079 | ||
6080 | void | |
6081 | ov511_deregister_decomp_module(int ov518, int mmx) | |
6082 | { | |
6083 | lock_kernel(); | |
6084 | ||
6085 | if (ov518) { | |
6086 | if (mmx) | |
6087 | ov518_mmx_decomp_ops = NULL; | |
6088 | else | |
6089 | ov518_decomp_ops = NULL; | |
6090 | } else { | |
6091 | if (mmx) | |
6092 | ov511_mmx_decomp_ops = NULL; | |
6093 | else | |
6094 | ov511_decomp_ops = NULL; | |
6095 | } | |
6096 | ||
6097 | unlock_kernel(); | |
6098 | } | |
6099 | ||
6100 | static int __init | |
6101 | usb_ov511_init(void) | |
6102 | { | |
6103 | int retval; | |
6104 | ||
6105 | retval = usb_register(&ov511_driver); | |
6106 | if (retval) | |
6107 | goto out; | |
6108 | ||
6109 | info(DRIVER_VERSION " : " DRIVER_DESC); | |
6110 | ||
6111 | out: | |
6112 | return retval; | |
6113 | } | |
6114 | ||
6115 | static void __exit | |
6116 | usb_ov511_exit(void) | |
6117 | { | |
6118 | usb_deregister(&ov511_driver); | |
6119 | info("driver deregistered"); | |
6120 | ||
6121 | } | |
6122 | ||
6123 | module_init(usb_ov511_init); | |
6124 | module_exit(usb_ov511_exit); | |
6125 | ||
6126 | EXPORT_SYMBOL(ov511_register_decomp_module); | |
6127 | EXPORT_SYMBOL(ov511_deregister_decomp_module); |