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RT-AC66 3.0.0.4.374.130 core
[tomato.git] / release / src-rt-6.x / linux / linux-2.6 / drivers / media / video / saa7134 / saa7134-video.c
blob9985ded209505103acfef03352cdd13493d9f1e5
1 /*
2 *
3 * device driver for philips saa7134 based TV cards
4 * video4linux video interface
5 *
6 * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 */
22
23 #include <linux/init.h>
24 #include <linux/list.h>
25 #include <linux/module.h>
26 #include <linux/moduleparam.h>
27 #include <linux/kernel.h>
28 #include <linux/slab.h>
29 #include <linux/sort.h>
30
31 #include "saa7134-reg.h"
32 #include "saa7134.h"
33 #include <media/v4l2-common.h>
34
35 #ifdef CONFIG_VIDEO_V4L1_COMPAT
36 /* Include V4L1 specific functions. Should be removed soon */
37 #include <linux/videodev.h>
38 #endif
39
40 /* ------------------------------------------------------------------ */
41
42 static unsigned int video_debug = 0;
43 static unsigned int gbuffers = 8;
44 static unsigned int noninterlaced = 1;
45 static unsigned int gbufsize = 720*576*4;
46 static unsigned int gbufsize_max = 720*576*4;
47 static char secam[] = "--";
48 module_param(video_debug, int, 0644);
49 MODULE_PARM_DESC(video_debug,"enable debug messages [video]");
50 module_param(gbuffers, int, 0444);
51 MODULE_PARM_DESC(gbuffers,"number of capture buffers, range 2-32");
52 module_param(noninterlaced, int, 0644);
53 MODULE_PARM_DESC(noninterlaced,"capture non interlaced video");
54 module_param_string(secam, secam, sizeof(secam), 0644);
55 MODULE_PARM_DESC(secam, "force SECAM variant, either DK,L or Lc");
56
57
58 #define dprintk(fmt, arg...) if (video_debug) \
59 printk(KERN_DEBUG "%s/video: " fmt, dev->name , ## arg)
60
61 /* ------------------------------------------------------------------ */
62 /* Defines for Video Output Port Register at address 0x191 */
63
64 /* Bit 0: VIP code T bit polarity */
65
66 #define VP_T_CODE_P_NON_INVERTED 0x00
67 #define VP_T_CODE_P_INVERTED 0x01
68
69 /* ------------------------------------------------------------------ */
70 /* Defines for Video Output Port Register at address 0x195 */
71
72 /* Bit 2: Video output clock delay control */
73
74 #define VP_CLK_CTRL2_NOT_DELAYED 0x00
75 #define VP_CLK_CTRL2_DELAYED 0x04
76
77 /* Bit 1: Video output clock invert control */
78
79 #define VP_CLK_CTRL1_NON_INVERTED 0x00
80 #define VP_CLK_CTRL1_INVERTED 0x02
81
82 /* ------------------------------------------------------------------ */
83 /* Defines for Video Output Port Register at address 0x196 */
84
85 /* Bits 2 to 0: VSYNC pin video vertical sync type */
86
87 #define VP_VS_TYPE_MASK 0x07
88
89 #define VP_VS_TYPE_OFF 0x00
90 #define VP_VS_TYPE_V123 0x01
91 #define VP_VS_TYPE_V_ITU 0x02
92 #define VP_VS_TYPE_VGATE_L 0x03
93 #define VP_VS_TYPE_RESERVED1 0x04
94 #define VP_VS_TYPE_RESERVED2 0x05
95 #define VP_VS_TYPE_F_ITU 0x06
96 #define VP_VS_TYPE_SC_FID 0x07
97
98 /* ------------------------------------------------------------------ */
99 /* data structs for video */
100
101 static int video_out[][9] = {
102 [CCIR656] = { 0x00, 0xb1, 0x00, 0xa1, 0x00, 0x04, 0x06, 0x00, 0x00 },
103 };
104
105 static struct saa7134_format formats[] = {
106 {
107 .name = "8 bpp gray",
108 .fourcc = V4L2_PIX_FMT_GREY,
109 .depth = 8,
110 .pm = 0x06,
111 },{
112 .name = "15 bpp RGB, le",
113 .fourcc = V4L2_PIX_FMT_RGB555,
114 .depth = 16,
115 .pm = 0x13 | 0x80,
116 },{
117 .name = "15 bpp RGB, be",
118 .fourcc = V4L2_PIX_FMT_RGB555X,
119 .depth = 16,
120 .pm = 0x13 | 0x80,
121 .bswap = 1,
122 },{
123 .name = "16 bpp RGB, le",
124 .fourcc = V4L2_PIX_FMT_RGB565,
125 .depth = 16,
126 .pm = 0x10 | 0x80,
127 },{
128 .name = "16 bpp RGB, be",
129 .fourcc = V4L2_PIX_FMT_RGB565X,
130 .depth = 16,
131 .pm = 0x10 | 0x80,
132 .bswap = 1,
133 },{
134 .name = "24 bpp RGB, le",
135 .fourcc = V4L2_PIX_FMT_BGR24,
136 .depth = 24,
137 .pm = 0x11,
138 },{
139 .name = "24 bpp RGB, be",
140 .fourcc = V4L2_PIX_FMT_RGB24,
141 .depth = 24,
142 .pm = 0x11,
143 .bswap = 1,
144 },{
145 .name = "32 bpp RGB, le",
146 .fourcc = V4L2_PIX_FMT_BGR32,
147 .depth = 32,
148 .pm = 0x12,
149 },{
150 .name = "32 bpp RGB, be",
151 .fourcc = V4L2_PIX_FMT_RGB32,
152 .depth = 32,
153 .pm = 0x12,
154 .bswap = 1,
155 .wswap = 1,
156 },{
157 .name = "4:2:2 packed, YUYV",
158 .fourcc = V4L2_PIX_FMT_YUYV,
159 .depth = 16,
160 .pm = 0x00,
161 .bswap = 1,
162 .yuv = 1,
163 },{
164 .name = "4:2:2 packed, UYVY",
165 .fourcc = V4L2_PIX_FMT_UYVY,
166 .depth = 16,
167 .pm = 0x00,
168 .yuv = 1,
169 },{
170 .name = "4:2:2 planar, Y-Cb-Cr",
171 .fourcc = V4L2_PIX_FMT_YUV422P,
172 .depth = 16,
173 .pm = 0x09,
174 .yuv = 1,
175 .planar = 1,
176 .hshift = 1,
177 .vshift = 0,
178 },{
179 .name = "4:2:0 planar, Y-Cb-Cr",
180 .fourcc = V4L2_PIX_FMT_YUV420,
181 .depth = 12,
182 .pm = 0x0a,
183 .yuv = 1,
184 .planar = 1,
185 .hshift = 1,
186 .vshift = 1,
187 },{
188 .name = "4:2:0 planar, Y-Cb-Cr",
189 .fourcc = V4L2_PIX_FMT_YVU420,
190 .depth = 12,
191 .pm = 0x0a,
192 .yuv = 1,
193 .planar = 1,
194 .uvswap = 1,
195 .hshift = 1,
196 .vshift = 1,
197 }
198 };
199 #define FORMATS ARRAY_SIZE(formats)
200
201 #define NORM_625_50 \
202 .h_start = 0, \
203 .h_stop = 719, \
204 .video_v_start = 24, \
205 .video_v_stop = 311, \
206 .vbi_v_start_0 = 7, \
207 .vbi_v_stop_0 = 22, \
208 .vbi_v_start_1 = 319, \
209 .src_timing = 4
210
211 #define NORM_525_60 \
212 .h_start = 0, \
213 .h_stop = 703, \
214 .video_v_start = 23, \
215 .video_v_stop = 262, \
216 .vbi_v_start_0 = 10, \
217 .vbi_v_stop_0 = 21, \
218 .vbi_v_start_1 = 273, \
219 .src_timing = 7
220
221 static struct saa7134_tvnorm tvnorms[] = {
222 {
223 .name = "PAL", /* autodetect */
224 .id = V4L2_STD_PAL,
225 NORM_625_50,
226
227 .sync_control = 0x18,
228 .luma_control = 0x40,
229 .chroma_ctrl1 = 0x81,
230 .chroma_gain = 0x2a,
231 .chroma_ctrl2 = 0x06,
232 .vgate_misc = 0x1c,
233
234 },{
235 .name = "PAL-BG",
236 .id = V4L2_STD_PAL_BG,
237 NORM_625_50,
238
239 .sync_control = 0x18,
240 .luma_control = 0x40,
241 .chroma_ctrl1 = 0x81,
242 .chroma_gain = 0x2a,
243 .chroma_ctrl2 = 0x06,
244 .vgate_misc = 0x1c,
245
246 },{
247 .name = "PAL-I",
248 .id = V4L2_STD_PAL_I,
249 NORM_625_50,
250
251 .sync_control = 0x18,
252 .luma_control = 0x40,
253 .chroma_ctrl1 = 0x81,
254 .chroma_gain = 0x2a,
255 .chroma_ctrl2 = 0x06,
256 .vgate_misc = 0x1c,
257
258 },{
259 .name = "PAL-DK",
260 .id = V4L2_STD_PAL_DK,
261 NORM_625_50,
262
263 .sync_control = 0x18,
264 .luma_control = 0x40,
265 .chroma_ctrl1 = 0x81,
266 .chroma_gain = 0x2a,
267 .chroma_ctrl2 = 0x06,
268 .vgate_misc = 0x1c,
269
270 },{
271 .name = "NTSC",
272 .id = V4L2_STD_NTSC,
273 NORM_525_60,
274
275 .sync_control = 0x59,
276 .luma_control = 0x40,
277 .chroma_ctrl1 = 0x89,
278 .chroma_gain = 0x2a,
279 .chroma_ctrl2 = 0x0e,
280 .vgate_misc = 0x18,
281
282 },{
283 .name = "SECAM",
284 .id = V4L2_STD_SECAM,
285 NORM_625_50,
286
287 .sync_control = 0x18,
288 .luma_control = 0x1b,
289 .chroma_ctrl1 = 0xd1,
290 .chroma_gain = 0x80,
291 .chroma_ctrl2 = 0x00,
292 .vgate_misc = 0x1c,
293
294 },{
295 .name = "SECAM-DK",
296 .id = V4L2_STD_SECAM_DK,
297 NORM_625_50,
298
299 .sync_control = 0x18,
300 .luma_control = 0x1b,
301 .chroma_ctrl1 = 0xd1,
302 .chroma_gain = 0x80,
303 .chroma_ctrl2 = 0x00,
304 .vgate_misc = 0x1c,
305
306 },{
307 .name = "SECAM-L",
308 .id = V4L2_STD_SECAM_L,
309 NORM_625_50,
310
311 .sync_control = 0x18,
312 .luma_control = 0x1b,
313 .chroma_ctrl1 = 0xd1,
314 .chroma_gain = 0x80,
315 .chroma_ctrl2 = 0x00,
316 .vgate_misc = 0x1c,
317
318 },{
319 .name = "SECAM-Lc",
320 .id = V4L2_STD_SECAM_LC,
321 NORM_625_50,
322
323 .sync_control = 0x18,
324 .luma_control = 0x1b,
325 .chroma_ctrl1 = 0xd1,
326 .chroma_gain = 0x80,
327 .chroma_ctrl2 = 0x00,
328 .vgate_misc = 0x1c,
329
330 },{
331 .name = "PAL-M",
332 .id = V4L2_STD_PAL_M,
333 NORM_525_60,
334
335 .sync_control = 0x59,
336 .luma_control = 0x40,
337 .chroma_ctrl1 = 0xb9,
338 .chroma_gain = 0x2a,
339 .chroma_ctrl2 = 0x0e,
340 .vgate_misc = 0x18,
341
342 },{
343 .name = "PAL-Nc",
344 .id = V4L2_STD_PAL_Nc,
345 NORM_625_50,
346
347 .sync_control = 0x18,
348 .luma_control = 0x40,
349 .chroma_ctrl1 = 0xa1,
350 .chroma_gain = 0x2a,
351 .chroma_ctrl2 = 0x06,
352 .vgate_misc = 0x1c,
353
354 },{
355 .name = "PAL-60",
356 .id = V4L2_STD_PAL_60,
357
358 .h_start = 0,
359 .h_stop = 719,
360 .video_v_start = 23,
361 .video_v_stop = 262,
362 .vbi_v_start_0 = 10,
363 .vbi_v_stop_0 = 21,
364 .vbi_v_start_1 = 273,
365 .src_timing = 7,
366
367 .sync_control = 0x18,
368 .luma_control = 0x40,
369 .chroma_ctrl1 = 0x81,
370 .chroma_gain = 0x2a,
371 .chroma_ctrl2 = 0x06,
372 .vgate_misc = 0x1c,
373 }
374 };
375 #define TVNORMS ARRAY_SIZE(tvnorms)
376
377 #define V4L2_CID_PRIVATE_INVERT (V4L2_CID_PRIVATE_BASE + 0)
378 #define V4L2_CID_PRIVATE_Y_ODD (V4L2_CID_PRIVATE_BASE + 1)
379 #define V4L2_CID_PRIVATE_Y_EVEN (V4L2_CID_PRIVATE_BASE + 2)
380 #define V4L2_CID_PRIVATE_AUTOMUTE (V4L2_CID_PRIVATE_BASE + 3)
381 #define V4L2_CID_PRIVATE_LASTP1 (V4L2_CID_PRIVATE_BASE + 4)
382
383 static const struct v4l2_queryctrl no_ctrl = {
384 .name = "42",
385 .flags = V4L2_CTRL_FLAG_DISABLED,
386 };
387 static const struct v4l2_queryctrl video_ctrls[] = {
388 /* --- video --- */
389 {
390 .id = V4L2_CID_BRIGHTNESS,
391 .name = "Brightness",
392 .minimum = 0,
393 .maximum = 255,
394 .step = 1,
395 .default_value = 128,
396 .type = V4L2_CTRL_TYPE_INTEGER,
397 },{
398 .id = V4L2_CID_CONTRAST,
399 .name = "Contrast",
400 .minimum = 0,
401 .maximum = 127,
402 .step = 1,
403 .default_value = 68,
404 .type = V4L2_CTRL_TYPE_INTEGER,
405 },{
406 .id = V4L2_CID_SATURATION,
407 .name = "Saturation",
408 .minimum = 0,
409 .maximum = 127,
410 .step = 1,
411 .default_value = 64,
412 .type = V4L2_CTRL_TYPE_INTEGER,
413 },{
414 .id = V4L2_CID_HUE,
415 .name = "Hue",
416 .minimum = -128,
417 .maximum = 127,
418 .step = 1,
419 .default_value = 0,
420 .type = V4L2_CTRL_TYPE_INTEGER,
421 },{
422 .id = V4L2_CID_HFLIP,
423 .name = "Mirror",
424 .minimum = 0,
425 .maximum = 1,
426 .type = V4L2_CTRL_TYPE_BOOLEAN,
427 },
428 /* --- audio --- */
429 {
430 .id = V4L2_CID_AUDIO_MUTE,
431 .name = "Mute",
432 .minimum = 0,
433 .maximum = 1,
434 .type = V4L2_CTRL_TYPE_BOOLEAN,
435 },{
436 .id = V4L2_CID_AUDIO_VOLUME,
437 .name = "Volume",
438 .minimum = -15,
439 .maximum = 15,
440 .step = 1,
441 .default_value = 0,
442 .type = V4L2_CTRL_TYPE_INTEGER,
443 },
444 /* --- private --- */
445 {
446 .id = V4L2_CID_PRIVATE_INVERT,
447 .name = "Invert",
448 .minimum = 0,
449 .maximum = 1,
450 .type = V4L2_CTRL_TYPE_BOOLEAN,
451 },{
452 .id = V4L2_CID_PRIVATE_Y_ODD,
453 .name = "y offset odd field",
454 .minimum = 0,
455 .maximum = 128,
456 .default_value = 0,
457 .type = V4L2_CTRL_TYPE_INTEGER,
458 },{
459 .id = V4L2_CID_PRIVATE_Y_EVEN,
460 .name = "y offset even field",
461 .minimum = 0,
462 .maximum = 128,
463 .default_value = 0,
464 .type = V4L2_CTRL_TYPE_INTEGER,
465 },{
466 .id = V4L2_CID_PRIVATE_AUTOMUTE,
467 .name = "automute",
468 .minimum = 0,
469 .maximum = 1,
470 .default_value = 1,
471 .type = V4L2_CTRL_TYPE_BOOLEAN,
472 }
473 };
474 static const unsigned int CTRLS = ARRAY_SIZE(video_ctrls);
475
476 static const struct v4l2_queryctrl* ctrl_by_id(unsigned int id)
477 {
478 unsigned int i;
479
480 for (i = 0; i < CTRLS; i++)
481 if (video_ctrls[i].id == id)
482 return video_ctrls+i;
483 return NULL;
484 }
485
486 static struct saa7134_format* format_by_fourcc(unsigned int fourcc)
487 {
488 unsigned int i;
489
490 for (i = 0; i < FORMATS; i++)
491 if (formats[i].fourcc == fourcc)
492 return formats+i;
493 return NULL;
494 }
495
496 /* ----------------------------------------------------------------------- */
497 /* resource management */
498
499 static int res_get(struct saa7134_dev *dev, struct saa7134_fh *fh, unsigned int bit)
500 {
501 if (fh->resources & bit)
502 /* have it already allocated */
503 return 1;
504
505 /* is it free? */
506 mutex_lock(&dev->lock);
507 if (dev->resources & bit) {
508 /* no, someone else uses it */
509 mutex_unlock(&dev->lock);
510 return 0;
511 }
512 /* it's free, grab it */
513 fh->resources |= bit;
514 dev->resources |= bit;
515 dprintk("res: get %d\n",bit);
516 mutex_unlock(&dev->lock);
517 return 1;
518 }
519
520 static int res_check(struct saa7134_fh *fh, unsigned int bit)
521 {
522 return (fh->resources & bit);
523 }
524
525 static int res_locked(struct saa7134_dev *dev, unsigned int bit)
526 {
527 return (dev->resources & bit);
528 }
529
530 static
531 void res_free(struct saa7134_dev *dev, struct saa7134_fh *fh, unsigned int bits)
532 {
533 BUG_ON((fh->resources & bits) != bits);
534
535 mutex_lock(&dev->lock);
536 fh->resources &= ~bits;
537 dev->resources &= ~bits;
538 dprintk("res: put %d\n",bits);
539 mutex_unlock(&dev->lock);
540 }
541
542 /* ------------------------------------------------------------------ */
543
544 static void set_tvnorm(struct saa7134_dev *dev, struct saa7134_tvnorm *norm)
545 {
546 int luma_control,sync_control,mux;
547
548 dprintk("set tv norm = %s\n",norm->name);
549 dev->tvnorm = norm;
550
551 mux = card_in(dev,dev->ctl_input).vmux;
552 luma_control = norm->luma_control;
553 sync_control = norm->sync_control;
554
555 if (mux > 5)
556 luma_control |= 0x80; /* svideo */
557 if (noninterlaced || dev->nosignal)
558 sync_control |= 0x20;
559
560 /* setup cropping */
561 dev->crop_bounds.left = norm->h_start;
562 dev->crop_defrect.left = norm->h_start;
563 dev->crop_bounds.width = norm->h_stop - norm->h_start +1;
564 dev->crop_defrect.width = norm->h_stop - norm->h_start +1;
565
566 dev->crop_bounds.top = (norm->vbi_v_stop_0+1)*2;
567 dev->crop_defrect.top = norm->video_v_start*2;
568 dev->crop_bounds.height = ((norm->id & V4L2_STD_525_60) ? 524 : 624)
569 - dev->crop_bounds.top;
570 dev->crop_defrect.height = (norm->video_v_stop - norm->video_v_start +1)*2;
571
572 dev->crop_current = dev->crop_defrect;
573
574 /* setup video decoder */
575 saa_writeb(SAA7134_INCR_DELAY, 0x08);
576 saa_writeb(SAA7134_ANALOG_IN_CTRL1, 0xc0 | mux);
577 saa_writeb(SAA7134_ANALOG_IN_CTRL2, 0x00);
578
579 saa_writeb(SAA7134_ANALOG_IN_CTRL3, 0x90);
580 saa_writeb(SAA7134_ANALOG_IN_CTRL4, 0x90);
581 saa_writeb(SAA7134_HSYNC_START, 0xeb);
582 saa_writeb(SAA7134_HSYNC_STOP, 0xe0);
583 saa_writeb(SAA7134_SOURCE_TIMING1, norm->src_timing);
584
585 saa_writeb(SAA7134_SYNC_CTRL, sync_control);
586 saa_writeb(SAA7134_LUMA_CTRL, luma_control);
587 saa_writeb(SAA7134_DEC_LUMA_BRIGHT, dev->ctl_bright);
588 saa_writeb(SAA7134_DEC_LUMA_CONTRAST, dev->ctl_contrast);
589
590 saa_writeb(SAA7134_DEC_CHROMA_SATURATION, dev->ctl_saturation);
591 saa_writeb(SAA7134_DEC_CHROMA_HUE, dev->ctl_hue);
592 saa_writeb(SAA7134_CHROMA_CTRL1, norm->chroma_ctrl1);
593 saa_writeb(SAA7134_CHROMA_GAIN, norm->chroma_gain);
594
595 saa_writeb(SAA7134_CHROMA_CTRL2, norm->chroma_ctrl2);
596 saa_writeb(SAA7134_MODE_DELAY_CTRL, 0x00);
597
598 saa_writeb(SAA7134_ANALOG_ADC, 0x01);
599 saa_writeb(SAA7134_VGATE_START, 0x11);
600 saa_writeb(SAA7134_VGATE_STOP, 0xfe);
601 saa_writeb(SAA7134_MISC_VGATE_MSB, norm->vgate_misc);
602 saa_writeb(SAA7134_RAW_DATA_GAIN, 0x40);
603 saa_writeb(SAA7134_RAW_DATA_OFFSET, 0x80);
604
605 /* only tell the tuner if this is a tv input */
606 if (card_in(dev,dev->ctl_input).tv) {
607 if ((card(dev).tuner_type == TUNER_PHILIPS_TDA8290)
608 && ((card(dev).tuner_config == 1)
609 || (card(dev).tuner_config == 2)))
610 saa7134_set_gpio(dev, 22, 5);
611 saa7134_i2c_call_clients(dev,VIDIOC_S_STD,&norm->id);
612 }
613 }
614
615 static void video_mux(struct saa7134_dev *dev, int input)
616 {
617 dprintk("video input = %d [%s]\n",input,card_in(dev,input).name);
618 dev->ctl_input = input;
619 set_tvnorm(dev,dev->tvnorm);
620 saa7134_tvaudio_setinput(dev,&card_in(dev,input));
621 }
622
623 static void set_h_prescale(struct saa7134_dev *dev, int task, int prescale)
624 {
625 static const struct {
626 int xpsc;
627 int xacl;
628 int xc2_1;
629 int xdcg;
630 int vpfy;
631 } vals[] = {
632 /* XPSC XACL XC2_1 XDCG VPFY */
633 { 1, 0, 0, 0, 0 },
634 { 2, 2, 1, 2, 2 },
635 { 3, 4, 1, 3, 2 },
636 { 4, 8, 1, 4, 2 },
637 { 5, 8, 1, 4, 2 },
638 { 6, 8, 1, 4, 3 },
639 { 7, 8, 1, 4, 3 },
640 { 8, 15, 0, 4, 3 },
641 { 9, 15, 0, 4, 3 },
642 { 10, 16, 1, 5, 3 },
643 };
644 static const int count = ARRAY_SIZE(vals);
645 int i;
646
647 for (i = 0; i < count; i++)
648 if (vals[i].xpsc == prescale)
649 break;
650 if (i == count)
651 return;
652
653 saa_writeb(SAA7134_H_PRESCALE(task), vals[i].xpsc);
654 saa_writeb(SAA7134_ACC_LENGTH(task), vals[i].xacl);
655 saa_writeb(SAA7134_LEVEL_CTRL(task),
656 (vals[i].xc2_1 << 3) | (vals[i].xdcg));
657 saa_andorb(SAA7134_FIR_PREFILTER_CTRL(task), 0x0f,
658 (vals[i].vpfy << 2) | vals[i].vpfy);
659 }
660
661 static void set_v_scale(struct saa7134_dev *dev, int task, int yscale)
662 {
663 int val,mirror;
664
665 saa_writeb(SAA7134_V_SCALE_RATIO1(task), yscale & 0xff);
666 saa_writeb(SAA7134_V_SCALE_RATIO2(task), yscale >> 8);
667
668 mirror = (dev->ctl_mirror) ? 0x02 : 0x00;
669 if (yscale < 2048) {
670 /* LPI */
671 dprintk("yscale LPI yscale=%d\n",yscale);
672 saa_writeb(SAA7134_V_FILTER(task), 0x00 | mirror);
673 saa_writeb(SAA7134_LUMA_CONTRAST(task), 0x40);
674 saa_writeb(SAA7134_CHROMA_SATURATION(task), 0x40);
675 } else {
676 /* ACM */
677 val = 0x40 * 1024 / yscale;
678 dprintk("yscale ACM yscale=%d val=0x%x\n",yscale,val);
679 saa_writeb(SAA7134_V_FILTER(task), 0x01 | mirror);
680 saa_writeb(SAA7134_LUMA_CONTRAST(task), val);
681 saa_writeb(SAA7134_CHROMA_SATURATION(task), val);
682 }
683 saa_writeb(SAA7134_LUMA_BRIGHT(task), 0x80);
684 }
685
686 static void set_size(struct saa7134_dev *dev, int task,
687 int width, int height, int interlace)
688 {
689 int prescale,xscale,yscale,y_even,y_odd;
690 int h_start, h_stop, v_start, v_stop;
691 int div = interlace ? 2 : 1;
692
693 /* setup video scaler */
694 h_start = dev->crop_current.left;
695 v_start = dev->crop_current.top/2;
696 h_stop = (dev->crop_current.left + dev->crop_current.width -1);
697 v_stop = (dev->crop_current.top + dev->crop_current.height -1)/2;
698
699 saa_writeb(SAA7134_VIDEO_H_START1(task), h_start & 0xff);
700 saa_writeb(SAA7134_VIDEO_H_START2(task), h_start >> 8);
701 saa_writeb(SAA7134_VIDEO_H_STOP1(task), h_stop & 0xff);
702 saa_writeb(SAA7134_VIDEO_H_STOP2(task), h_stop >> 8);
703 saa_writeb(SAA7134_VIDEO_V_START1(task), v_start & 0xff);
704 saa_writeb(SAA7134_VIDEO_V_START2(task), v_start >> 8);
705 saa_writeb(SAA7134_VIDEO_V_STOP1(task), v_stop & 0xff);
706 saa_writeb(SAA7134_VIDEO_V_STOP2(task), v_stop >> 8);
707
708 prescale = dev->crop_current.width / width;
709 if (0 == prescale)
710 prescale = 1;
711 xscale = 1024 * dev->crop_current.width / prescale / width;
712 yscale = 512 * div * dev->crop_current.height / height;
713 dprintk("prescale=%d xscale=%d yscale=%d\n",prescale,xscale,yscale);
714 set_h_prescale(dev,task,prescale);
715 saa_writeb(SAA7134_H_SCALE_INC1(task), xscale & 0xff);
716 saa_writeb(SAA7134_H_SCALE_INC2(task), xscale >> 8);
717 set_v_scale(dev,task,yscale);
718
719 saa_writeb(SAA7134_VIDEO_PIXELS1(task), width & 0xff);
720 saa_writeb(SAA7134_VIDEO_PIXELS2(task), width >> 8);
721 saa_writeb(SAA7134_VIDEO_LINES1(task), height/div & 0xff);
722 saa_writeb(SAA7134_VIDEO_LINES2(task), height/div >> 8);
723
724 /* deinterlace y offsets */
725 y_odd = dev->ctl_y_odd;
726 y_even = dev->ctl_y_even;
727 saa_writeb(SAA7134_V_PHASE_OFFSET0(task), y_odd);
728 saa_writeb(SAA7134_V_PHASE_OFFSET1(task), y_even);
729 saa_writeb(SAA7134_V_PHASE_OFFSET2(task), y_odd);
730 saa_writeb(SAA7134_V_PHASE_OFFSET3(task), y_even);
731 }
732
733 /* ------------------------------------------------------------------ */
734
735 struct cliplist {
736 __u16 position;
737 __u8 enable;
738 __u8 disable;
739 };
740
741 static void set_cliplist(struct saa7134_dev *dev, int reg,
742 struct cliplist *cl, int entries, char *name)
743 {
744 __u8 winbits = 0;
745 int i;
746
747 for (i = 0; i < entries; i++) {
748 winbits |= cl[i].enable;
749 winbits &= ~cl[i].disable;
750 if (i < 15 && cl[i].position == cl[i+1].position)
751 continue;
752 saa_writeb(reg + 0, winbits);
753 saa_writeb(reg + 2, cl[i].position & 0xff);
754 saa_writeb(reg + 3, cl[i].position >> 8);
755 dprintk("clip: %s winbits=%02x pos=%d\n",
756 name,winbits,cl[i].position);
757 reg += 8;
758 }
759 for (; reg < 0x400; reg += 8) {
760 saa_writeb(reg+ 0, 0);
761 saa_writeb(reg + 1, 0);
762 saa_writeb(reg + 2, 0);
763 saa_writeb(reg + 3, 0);
764 }
765 }
766
767 static int clip_range(int val)
768 {
769 if (val < 0)
770 val = 0;
771 return val;
772 }
773
774 /* Sort into smallest position first order */
775 static int cliplist_cmp(const void *a, const void *b)
776 {
777 const struct cliplist *cla = a;
778 const struct cliplist *clb = b;
779 if (cla->position < clb->position)
780 return -1;
781 if (cla->position > clb->position)
782 return 1;
783 return 0;
784 }
785
786 static int setup_clipping(struct saa7134_dev *dev, struct v4l2_clip *clips,
787 int nclips, int interlace)
788 {
789 struct cliplist col[16], row[16];
790 int cols = 0, rows = 0, i;
791 int div = interlace ? 2 : 1;
792
793 memset(col, 0, sizeof(col));
794 memset(row, 0, sizeof(row));
795 for (i = 0; i < nclips && i < 8; i++) {
796 col[cols].position = clip_range(clips[i].c.left);
797 col[cols].enable = (1 << i);
798 cols++;
799 col[cols].position = clip_range(clips[i].c.left+clips[i].c.width);
800 col[cols].disable = (1 << i);
801 cols++;
802 row[rows].position = clip_range(clips[i].c.top / div);
803 row[rows].enable = (1 << i);
804 rows++;
805 row[rows].position = clip_range((clips[i].c.top + clips[i].c.height)
806 / div);
807 row[rows].disable = (1 << i);
808 rows++;
809 }
810 sort(col, cols, sizeof col[0], cliplist_cmp, NULL);
811 sort(row, rows, sizeof row[0], cliplist_cmp, NULL);
812 set_cliplist(dev,0x380,col,cols,"cols");
813 set_cliplist(dev,0x384,row,rows,"rows");
814 return 0;
815 }
816
817 static int verify_preview(struct saa7134_dev *dev, struct v4l2_window *win)
818 {
819 enum v4l2_field field;
820 int maxw, maxh;
821
822 if (NULL == dev->ovbuf.base)
823 return -EINVAL;
824 if (NULL == dev->ovfmt)
825 return -EINVAL;
826 if (win->w.width < 48 || win->w.height < 32)
827 return -EINVAL;
828 if (win->clipcount > 2048)
829 return -EINVAL;
830
831 field = win->field;
832 maxw = dev->crop_current.width;
833 maxh = dev->crop_current.height;
834
835 if (V4L2_FIELD_ANY == field) {
836 field = (win->w.height > maxh/2)
837 ? V4L2_FIELD_INTERLACED
838 : V4L2_FIELD_TOP;
839 }
840 switch (field) {
841 case V4L2_FIELD_TOP:
842 case V4L2_FIELD_BOTTOM:
843 maxh = maxh / 2;
844 break;
845 case V4L2_FIELD_INTERLACED:
846 break;
847 default:
848 return -EINVAL;
849 }
850
851 win->field = field;
852 if (win->w.width > maxw)
853 win->w.width = maxw;
854 if (win->w.height > maxh)
855 win->w.height = maxh;
856 return 0;
857 }
858
859 static int start_preview(struct saa7134_dev *dev, struct saa7134_fh *fh)
860 {
861 unsigned long base,control,bpl;
862 int err;
863
864 err = verify_preview(dev,&fh->win);
865 if (0 != err)
866 return err;
867
868 dev->ovfield = fh->win.field;
869 dprintk("start_preview %dx%d+%d+%d %s field=%s\n",
870 fh->win.w.width,fh->win.w.height,
871 fh->win.w.left,fh->win.w.top,
872 dev->ovfmt->name,v4l2_field_names[dev->ovfield]);
873
874 /* setup window + clipping */
875 set_size(dev,TASK_B,fh->win.w.width,fh->win.w.height,
876 V4L2_FIELD_HAS_BOTH(dev->ovfield));
877 setup_clipping(dev,fh->clips,fh->nclips,
878 V4L2_FIELD_HAS_BOTH(dev->ovfield));
879 if (dev->ovfmt->yuv)
880 saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x03);
881 else
882 saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x01);
883 saa_writeb(SAA7134_OFMT_VIDEO_B, dev->ovfmt->pm | 0x20);
884
885 /* dma: setup channel 1 (= Video Task B) */
886 base = (unsigned long)dev->ovbuf.base;
887 base += dev->ovbuf.fmt.bytesperline * fh->win.w.top;
888 base += dev->ovfmt->depth/8 * fh->win.w.left;
889 bpl = dev->ovbuf.fmt.bytesperline;
890 control = SAA7134_RS_CONTROL_BURST_16;
891 if (dev->ovfmt->bswap)
892 control |= SAA7134_RS_CONTROL_BSWAP;
893 if (dev->ovfmt->wswap)
894 control |= SAA7134_RS_CONTROL_WSWAP;
895 if (V4L2_FIELD_HAS_BOTH(dev->ovfield)) {
896 saa_writel(SAA7134_RS_BA1(1),base);
897 saa_writel(SAA7134_RS_BA2(1),base+bpl);
898 saa_writel(SAA7134_RS_PITCH(1),bpl*2);
899 saa_writel(SAA7134_RS_CONTROL(1),control);
900 } else {
901 saa_writel(SAA7134_RS_BA1(1),base);
902 saa_writel(SAA7134_RS_BA2(1),base);
903 saa_writel(SAA7134_RS_PITCH(1),bpl);
904 saa_writel(SAA7134_RS_CONTROL(1),control);
905 }
906
907 /* start dma */
908 dev->ovenable = 1;
909 saa7134_set_dmabits(dev);
910
911 return 0;
912 }
913
914 static int stop_preview(struct saa7134_dev *dev, struct saa7134_fh *fh)
915 {
916 dev->ovenable = 0;
917 saa7134_set_dmabits(dev);
918 return 0;
919 }
920
921 /* ------------------------------------------------------------------ */
922
923 static int buffer_activate(struct saa7134_dev *dev,
924 struct saa7134_buf *buf,
925 struct saa7134_buf *next)
926 {
927 unsigned long base,control,bpl;
928 unsigned long bpl_uv,lines_uv,base2,base3,tmp; /* planar */
929
930 dprintk("buffer_activate buf=%p\n",buf);
931 buf->vb.state = STATE_ACTIVE;
932 buf->top_seen = 0;
933
934 set_size(dev,TASK_A,buf->vb.width,buf->vb.height,
935 V4L2_FIELD_HAS_BOTH(buf->vb.field));
936 if (buf->fmt->yuv)
937 saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x03);
938 else
939 saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x01);
940 saa_writeb(SAA7134_OFMT_VIDEO_A, buf->fmt->pm);
941
942 /* DMA: setup channel 0 (= Video Task A0) */
943 base = saa7134_buffer_base(buf);
944 if (buf->fmt->planar)
945 bpl = buf->vb.width;
946 else
947 bpl = (buf->vb.width * buf->fmt->depth) / 8;
948 control = SAA7134_RS_CONTROL_BURST_16 |
949 SAA7134_RS_CONTROL_ME |
950 (buf->pt->dma >> 12);
951 if (buf->fmt->bswap)
952 control |= SAA7134_RS_CONTROL_BSWAP;
953 if (buf->fmt->wswap)
954 control |= SAA7134_RS_CONTROL_WSWAP;
955 if (V4L2_FIELD_HAS_BOTH(buf->vb.field)) {
956 /* interlaced */
957 saa_writel(SAA7134_RS_BA1(0),base);
958 saa_writel(SAA7134_RS_BA2(0),base+bpl);
959 saa_writel(SAA7134_RS_PITCH(0),bpl*2);
960 } else {
961 /* non-interlaced */
962 saa_writel(SAA7134_RS_BA1(0),base);
963 saa_writel(SAA7134_RS_BA2(0),base);
964 saa_writel(SAA7134_RS_PITCH(0),bpl);
965 }
966 saa_writel(SAA7134_RS_CONTROL(0),control);
967
968 if (buf->fmt->planar) {
969 /* DMA: setup channel 4+5 (= planar task A) */
970 bpl_uv = bpl >> buf->fmt->hshift;
971 lines_uv = buf->vb.height >> buf->fmt->vshift;
972 base2 = base + bpl * buf->vb.height;
973 base3 = base2 + bpl_uv * lines_uv;
974 if (buf->fmt->uvswap)
975 tmp = base2, base2 = base3, base3 = tmp;
976 dprintk("uv: bpl=%ld lines=%ld base2/3=%ld/%ld\n",
977 bpl_uv,lines_uv,base2,base3);
978 if (V4L2_FIELD_HAS_BOTH(buf->vb.field)) {
979 /* interlaced */
980 saa_writel(SAA7134_RS_BA1(4),base2);
981 saa_writel(SAA7134_RS_BA2(4),base2+bpl_uv);
982 saa_writel(SAA7134_RS_PITCH(4),bpl_uv*2);
983 saa_writel(SAA7134_RS_BA1(5),base3);
984 saa_writel(SAA7134_RS_BA2(5),base3+bpl_uv);
985 saa_writel(SAA7134_RS_PITCH(5),bpl_uv*2);
986 } else {
987 /* non-interlaced */
988 saa_writel(SAA7134_RS_BA1(4),base2);
989 saa_writel(SAA7134_RS_BA2(4),base2);
990 saa_writel(SAA7134_RS_PITCH(4),bpl_uv);
991 saa_writel(SAA7134_RS_BA1(5),base3);
992 saa_writel(SAA7134_RS_BA2(5),base3);
993 saa_writel(SAA7134_RS_PITCH(5),bpl_uv);
994 }
995 saa_writel(SAA7134_RS_CONTROL(4),control);
996 saa_writel(SAA7134_RS_CONTROL(5),control);
997 }
998
999 /* start DMA */
1000 saa7134_set_dmabits(dev);
1001 mod_timer(&dev->video_q.timeout, jiffies+BUFFER_TIMEOUT);
1002 return 0;
1003 }
1004
1005 static int buffer_prepare(struct videobuf_queue *q,
1006 struct videobuf_buffer *vb,
1007 enum v4l2_field field)
1008 {
1009 struct saa7134_fh *fh = q->priv_data;
1010 struct saa7134_dev *dev = fh->dev;
1011 struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
1012 unsigned int size;
1013 int err;
1014
1015 /* sanity checks */
1016 if (NULL == fh->fmt)
1017 return -EINVAL;
1018 if (fh->width < 48 ||
1019 fh->height < 32 ||
1020 fh->width/4 > dev->crop_current.width ||
1021 fh->height/4 > dev->crop_current.height ||
1022 fh->width > dev->crop_bounds.width ||
1023 fh->height > dev->crop_bounds.height)
1024 return -EINVAL;
1025 size = (fh->width * fh->height * fh->fmt->depth) >> 3;
1026 if (0 != buf->vb.baddr && buf->vb.bsize < size)
1027 return -EINVAL;
1028
1029 dprintk("buffer_prepare [%d,size=%dx%d,bytes=%d,fields=%s,%s]\n",
1030 vb->i,fh->width,fh->height,size,v4l2_field_names[field],
1031 fh->fmt->name);
1032 if (buf->vb.width != fh->width ||
1033 buf->vb.height != fh->height ||
1034 buf->vb.size != size ||
1035 buf->vb.field != field ||
1036 buf->fmt != fh->fmt) {
1037 saa7134_dma_free(q,buf);
1038 }
1039
1040 if (STATE_NEEDS_INIT == buf->vb.state) {
1041 buf->vb.width = fh->width;
1042 buf->vb.height = fh->height;
1043 buf->vb.size = size;
1044 buf->vb.field = field;
1045 buf->fmt = fh->fmt;
1046 buf->pt = &fh->pt_cap;
1047
1048 err = videobuf_iolock(q,&buf->vb,&dev->ovbuf);
1049 if (err)
1050 goto oops;
1051 err = saa7134_pgtable_build(dev->pci,buf->pt,
1052 buf->vb.dma.sglist,
1053 buf->vb.dma.sglen,
1054 saa7134_buffer_startpage(buf));
1055 if (err)
1056 goto oops;
1057 }
1058 buf->vb.state = STATE_PREPARED;
1059 buf->activate = buffer_activate;
1060 return 0;
1061
1062 oops:
1063 saa7134_dma_free(q,buf);
1064 return err;
1065 }
1066
1067 static int
1068 buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
1069 {
1070 struct saa7134_fh *fh = q->priv_data;
1071
1072 *size = fh->fmt->depth * fh->width * fh->height >> 3;
1073 if (0 == *count)
1074 *count = gbuffers;
1075 *count = saa7134_buffer_count(*size,*count);
1076 return 0;
1077 }
1078
1079 static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
1080 {
1081 struct saa7134_fh *fh = q->priv_data;
1082 struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
1083
1084 saa7134_buffer_queue(fh->dev,&fh->dev->video_q,buf);
1085 }
1086
1087 static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
1088 {
1089 struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
1090
1091 saa7134_dma_free(q,buf);
1092 }
1093
1094 static struct videobuf_queue_ops video_qops = {
1095 .buf_setup = buffer_setup,
1096 .buf_prepare = buffer_prepare,
1097 .buf_queue = buffer_queue,
1098 .buf_release = buffer_release,
1099 };
1100
1101 /* ------------------------------------------------------------------ */
1102
1103 static int get_control(struct saa7134_dev *dev, struct v4l2_control *c)
1104 {
1105 const struct v4l2_queryctrl* ctrl;
1106
1107 ctrl = ctrl_by_id(c->id);
1108 if (NULL == ctrl)
1109 return -EINVAL;
1110 switch (c->id) {
1111 case V4L2_CID_BRIGHTNESS:
1112 c->value = dev->ctl_bright;
1113 break;
1114 case V4L2_CID_HUE:
1115 c->value = dev->ctl_hue;
1116 break;
1117 case V4L2_CID_CONTRAST:
1118 c->value = dev->ctl_contrast;
1119 break;
1120 case V4L2_CID_SATURATION:
1121 c->value = dev->ctl_saturation;
1122 break;
1123 case V4L2_CID_AUDIO_MUTE:
1124 c->value = dev->ctl_mute;
1125 break;
1126 case V4L2_CID_AUDIO_VOLUME:
1127 c->value = dev->ctl_volume;
1128 break;
1129 case V4L2_CID_PRIVATE_INVERT:
1130 c->value = dev->ctl_invert;
1131 break;
1132 case V4L2_CID_HFLIP:
1133 c->value = dev->ctl_mirror;
1134 break;
1135 case V4L2_CID_PRIVATE_Y_EVEN:
1136 c->value = dev->ctl_y_even;
1137 break;
1138 case V4L2_CID_PRIVATE_Y_ODD:
1139 c->value = dev->ctl_y_odd;
1140 break;
1141 case V4L2_CID_PRIVATE_AUTOMUTE:
1142 c->value = dev->ctl_automute;
1143 break;
1144 default:
1145 return -EINVAL;
1146 }
1147 return 0;
1148 }
1149
1150 static int set_control(struct saa7134_dev *dev, struct saa7134_fh *fh,
1151 struct v4l2_control *c)
1152 {
1153 const struct v4l2_queryctrl* ctrl;
1154 unsigned long flags;
1155 int restart_overlay = 0;
1156
1157 ctrl = ctrl_by_id(c->id);
1158 if (NULL == ctrl)
1159 return -EINVAL;
1160 dprintk("set_control name=%s val=%d\n",ctrl->name,c->value);
1161 switch (ctrl->type) {
1162 case V4L2_CTRL_TYPE_BOOLEAN:
1163 case V4L2_CTRL_TYPE_MENU:
1164 case V4L2_CTRL_TYPE_INTEGER:
1165 if (c->value < ctrl->minimum)
1166 c->value = ctrl->minimum;
1167 if (c->value > ctrl->maximum)
1168 c->value = ctrl->maximum;
1169 break;
1170 default:
1171 /* nothing */;
1172 };
1173 switch (c->id) {
1174 case V4L2_CID_BRIGHTNESS:
1175 dev->ctl_bright = c->value;
1176 saa_writeb(SAA7134_DEC_LUMA_BRIGHT, dev->ctl_bright);
1177 break;
1178 case V4L2_CID_HUE:
1179 dev->ctl_hue = c->value;
1180 saa_writeb(SAA7134_DEC_CHROMA_HUE, dev->ctl_hue);
1181 break;
1182 case V4L2_CID_CONTRAST:
1183 dev->ctl_contrast = c->value;
1184 saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
1185 dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
1186 break;
1187 case V4L2_CID_SATURATION:
1188 dev->ctl_saturation = c->value;
1189 saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
1190 dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
1191 break;
1192 case V4L2_CID_AUDIO_MUTE:
1193 dev->ctl_mute = c->value;
1194 saa7134_tvaudio_setmute(dev);
1195 break;
1196 case V4L2_CID_AUDIO_VOLUME:
1197 dev->ctl_volume = c->value;
1198 saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
1199 break;
1200 case V4L2_CID_PRIVATE_INVERT:
1201 dev->ctl_invert = c->value;
1202 saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
1203 dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
1204 saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
1205 dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
1206 break;
1207 case V4L2_CID_HFLIP:
1208 dev->ctl_mirror = c->value;
1209 restart_overlay = 1;
1210 break;
1211 case V4L2_CID_PRIVATE_Y_EVEN:
1212 dev->ctl_y_even = c->value;
1213 restart_overlay = 1;
1214 break;
1215 case V4L2_CID_PRIVATE_Y_ODD:
1216 dev->ctl_y_odd = c->value;
1217 restart_overlay = 1;
1218 break;
1219 case V4L2_CID_PRIVATE_AUTOMUTE:
1220 dev->ctl_automute = c->value;
1221 if (dev->tda9887_conf) {
1222 if (dev->ctl_automute)
1223 dev->tda9887_conf |= TDA9887_AUTOMUTE;
1224 else
1225 dev->tda9887_conf &= ~TDA9887_AUTOMUTE;
1226 saa7134_i2c_call_clients(dev, TDA9887_SET_CONFIG,
1227 &dev->tda9887_conf);
1228 }
1229 break;
1230 default:
1231 return -EINVAL;
1232 }
1233 if (restart_overlay && fh && res_check(fh, RESOURCE_OVERLAY)) {
1234 spin_lock_irqsave(&dev->slock,flags);
1235 stop_preview(dev,fh);
1236 start_preview(dev,fh);
1237 spin_unlock_irqrestore(&dev->slock,flags);
1238 }
1239 return 0;
1240 }
1241
1242 /* ------------------------------------------------------------------ */
1243
1244 static struct videobuf_queue* saa7134_queue(struct saa7134_fh *fh)
1245 {
1246 struct videobuf_queue* q = NULL;
1247
1248 switch (fh->type) {
1249 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1250 q = &fh->cap;
1251 break;
1252 case V4L2_BUF_TYPE_VBI_CAPTURE:
1253 q = &fh->vbi;
1254 break;
1255 default:
1256 BUG();
1257 }
1258 return q;
1259 }
1260
1261 static int saa7134_resource(struct saa7134_fh *fh)
1262 {
1263 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1264 return RESOURCE_VIDEO;
1265
1266 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
1267 return RESOURCE_VBI;
1268
1269 BUG();
1270 return 0;
1271 }
1272
1273 static int video_open(struct inode *inode, struct file *file)
1274 {
1275 int minor = iminor(inode);
1276 struct saa7134_dev *h,*dev = NULL;
1277 struct saa7134_fh *fh;
1278 struct list_head *list;
1279 enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1280 int radio = 0;
1281 list_for_each(list,&saa7134_devlist) {
1282 h = list_entry(list, struct saa7134_dev, devlist);
1283 if (h->video_dev && (h->video_dev->minor == minor))
1284 dev = h;
1285 if (h->radio_dev && (h->radio_dev->minor == minor)) {
1286 radio = 1;
1287 dev = h;
1288 }
1289 if (h->vbi_dev && (h->vbi_dev->minor == minor)) {
1290 type = V4L2_BUF_TYPE_VBI_CAPTURE;
1291 dev = h;
1292 }
1293 }
1294 if (NULL == dev)
1295 return -ENODEV;
1296
1297 dprintk("open minor=%d radio=%d type=%s\n",minor,radio,
1298 v4l2_type_names[type]);
1299
1300 /* allocate + initialize per filehandle data */
1301 fh = kzalloc(sizeof(*fh),GFP_KERNEL);
1302 if (NULL == fh)
1303 return -ENOMEM;
1304 file->private_data = fh;
1305 fh->dev = dev;
1306 fh->radio = radio;
1307 fh->type = type;
1308 fh->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
1309 fh->width = 720;
1310 fh->height = 576;
1311 v4l2_prio_open(&dev->prio,&fh->prio);
1312
1313 videobuf_queue_init(&fh->cap, &video_qops,
1314 dev->pci, &dev->slock,
1315 V4L2_BUF_TYPE_VIDEO_CAPTURE,
1316 V4L2_FIELD_INTERLACED,
1317 sizeof(struct saa7134_buf),
1318 fh);
1319 videobuf_queue_init(&fh->vbi, &saa7134_vbi_qops,
1320 dev->pci, &dev->slock,
1321 V4L2_BUF_TYPE_VBI_CAPTURE,
1322 V4L2_FIELD_SEQ_TB,
1323 sizeof(struct saa7134_buf),
1324 fh);
1325 saa7134_pgtable_alloc(dev->pci,&fh->pt_cap);
1326 saa7134_pgtable_alloc(dev->pci,&fh->pt_vbi);
1327
1328 if (fh->radio) {
1329 /* switch to radio mode */
1330 saa7134_tvaudio_setinput(dev,&card(dev).radio);
1331 saa7134_i2c_call_clients(dev,AUDC_SET_RADIO, NULL);
1332 } else {
1333 /* switch to video/vbi mode */
1334 video_mux(dev,dev->ctl_input);
1335 }
1336 return 0;
1337 }
1338
1339 static ssize_t
1340 video_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
1341 {
1342 struct saa7134_fh *fh = file->private_data;
1343
1344 switch (fh->type) {
1345 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1346 if (res_locked(fh->dev,RESOURCE_VIDEO))
1347 return -EBUSY;
1348 return videobuf_read_one(saa7134_queue(fh),
1349 data, count, ppos,
1350 file->f_flags & O_NONBLOCK);
1351 case V4L2_BUF_TYPE_VBI_CAPTURE:
1352 if (!res_get(fh->dev,fh,RESOURCE_VBI))
1353 return -EBUSY;
1354 return videobuf_read_stream(saa7134_queue(fh),
1355 data, count, ppos, 1,
1356 file->f_flags & O_NONBLOCK);
1357 break;
1358 default:
1359 BUG();
1360 return 0;
1361 }
1362 }
1363
1364 static unsigned int
1365 video_poll(struct file *file, struct poll_table_struct *wait)
1366 {
1367 struct saa7134_fh *fh = file->private_data;
1368 struct videobuf_buffer *buf = NULL;
1369
1370 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type)
1371 return videobuf_poll_stream(file, &fh->vbi, wait);
1372
1373 if (res_check(fh,RESOURCE_VIDEO)) {
1374 if (!list_empty(&fh->cap.stream))
1375 buf = list_entry(fh->cap.stream.next, struct videobuf_buffer, stream);
1376 } else {
1377 mutex_lock(&fh->cap.lock);
1378 if (UNSET == fh->cap.read_off) {
1379 /* need to capture a new frame */
1380 if (res_locked(fh->dev,RESOURCE_VIDEO)) {
1381 mutex_unlock(&fh->cap.lock);
1382 return POLLERR;
1383 }
1384 if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,fh->cap.field)) {
1385 mutex_unlock(&fh->cap.lock);
1386 return POLLERR;
1387 }
1388 fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
1389 fh->cap.read_off = 0;
1390 }
1391 mutex_unlock(&fh->cap.lock);
1392 buf = fh->cap.read_buf;
1393 }
1394
1395 if (!buf)
1396 return POLLERR;
1397
1398 poll_wait(file, &buf->done, wait);
1399 if (buf->state == STATE_DONE ||
1400 buf->state == STATE_ERROR)
1401 return POLLIN|POLLRDNORM;
1402 return 0;
1403 }
1404
1405 static int video_release(struct inode *inode, struct file *file)
1406 {
1407 struct saa7134_fh *fh = file->private_data;
1408 struct saa7134_dev *dev = fh->dev;
1409 unsigned long flags;
1410
1411 /* turn off overlay */
1412 if (res_check(fh, RESOURCE_OVERLAY)) {
1413 spin_lock_irqsave(&dev->slock,flags);
1414 stop_preview(dev,fh);
1415 spin_unlock_irqrestore(&dev->slock,flags);
1416 res_free(dev,fh,RESOURCE_OVERLAY);
1417 }
1418
1419 /* stop video capture */
1420 if (res_check(fh, RESOURCE_VIDEO)) {
1421 videobuf_streamoff(&fh->cap);
1422 res_free(dev,fh,RESOURCE_VIDEO);
1423 }
1424 if (fh->cap.read_buf) {
1425 buffer_release(&fh->cap,fh->cap.read_buf);
1426 kfree(fh->cap.read_buf);
1427 }
1428
1429 /* stop vbi capture */
1430 if (res_check(fh, RESOURCE_VBI)) {
1431 if (fh->vbi.streaming)
1432 videobuf_streamoff(&fh->vbi);
1433 if (fh->vbi.reading)
1434 videobuf_read_stop(&fh->vbi);
1435 res_free(dev,fh,RESOURCE_VBI);
1436 }
1437
1438 /* ts-capture will not work in planar mode, so turn it off Hac: 04.05*/
1439 saa_andorb(SAA7134_OFMT_VIDEO_A, 0x1f, 0);
1440 saa_andorb(SAA7134_OFMT_VIDEO_B, 0x1f, 0);
1441 saa_andorb(SAA7134_OFMT_DATA_A, 0x1f, 0);
1442 saa_andorb(SAA7134_OFMT_DATA_B, 0x1f, 0);
1443
1444 saa7134_i2c_call_clients(dev, TUNER_SET_STANDBY, NULL);
1445
1446 /* free stuff */
1447 videobuf_mmap_free(&fh->cap);
1448 videobuf_mmap_free(&fh->vbi);
1449 saa7134_pgtable_free(dev->pci,&fh->pt_cap);
1450 saa7134_pgtable_free(dev->pci,&fh->pt_vbi);
1451
1452 v4l2_prio_close(&dev->prio,&fh->prio);
1453 file->private_data = NULL;
1454 kfree(fh);
1455 return 0;
1456 }
1457
1458 static int video_mmap(struct file *file, struct vm_area_struct * vma)
1459 {
1460 struct saa7134_fh *fh = file->private_data;
1461
1462 return videobuf_mmap_mapper(saa7134_queue(fh), vma);
1463 }
1464
1465 /* ------------------------------------------------------------------ */
1466
1467 static void saa7134_vbi_fmt(struct saa7134_dev *dev, struct v4l2_format *f)
1468 {
1469 struct saa7134_tvnorm *norm = dev->tvnorm;
1470
1471 f->fmt.vbi.sampling_rate = 6750000 * 4;
1472 f->fmt.vbi.samples_per_line = 2048 /* VBI_LINE_LENGTH */;
1473 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1474 f->fmt.vbi.offset = 64 * 4;
1475 f->fmt.vbi.start[0] = norm->vbi_v_start_0;
1476 f->fmt.vbi.count[0] = norm->vbi_v_stop_0 - norm->vbi_v_start_0 +1;
1477 f->fmt.vbi.start[1] = norm->vbi_v_start_1;
1478 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1479 f->fmt.vbi.flags = 0; /* VBI_UNSYNC VBI_INTERLACED */
1480
1481 }
1482
1483 static int saa7134_g_fmt(struct saa7134_dev *dev, struct saa7134_fh *fh,
1484 struct v4l2_format *f)
1485 {
1486 switch (f->type) {
1487 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1488 memset(&f->fmt.pix,0,sizeof(f->fmt.pix));
1489 f->fmt.pix.width = fh->width;
1490 f->fmt.pix.height = fh->height;
1491 f->fmt.pix.field = fh->cap.field;
1492 f->fmt.pix.pixelformat = fh->fmt->fourcc;
1493 f->fmt.pix.bytesperline =
1494 (f->fmt.pix.width * fh->fmt->depth) >> 3;
1495 f->fmt.pix.sizeimage =
1496 f->fmt.pix.height * f->fmt.pix.bytesperline;
1497 return 0;
1498 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
1499 if (saa7134_no_overlay > 0) {
1500 printk ("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1501 return -EINVAL;
1502 }
1503 f->fmt.win = fh->win;
1504 return 0;
1505 case V4L2_BUF_TYPE_VBI_CAPTURE:
1506 saa7134_vbi_fmt(dev,f);
1507 return 0;
1508 default:
1509 return -EINVAL;
1510 }
1511 }
1512
1513 static int saa7134_try_fmt(struct saa7134_dev *dev, struct saa7134_fh *fh,
1514 struct v4l2_format *f)
1515 {
1516 int err;
1517
1518 switch (f->type) {
1519 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1520 {
1521 struct saa7134_format *fmt;
1522 enum v4l2_field field;
1523 unsigned int maxw, maxh;
1524
1525 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1526 if (NULL == fmt)
1527 return -EINVAL;
1528
1529 field = f->fmt.pix.field;
1530 maxw = min(dev->crop_current.width*4, dev->crop_bounds.width);
1531 maxh = min(dev->crop_current.height*4, dev->crop_bounds.height);
1532
1533 if (V4L2_FIELD_ANY == field) {
1534 field = (f->fmt.pix.height > maxh/2)
1535 ? V4L2_FIELD_INTERLACED
1536 : V4L2_FIELD_BOTTOM;
1537 }
1538 switch (field) {
1539 case V4L2_FIELD_TOP:
1540 case V4L2_FIELD_BOTTOM:
1541 maxh = maxh / 2;
1542 break;
1543 case V4L2_FIELD_INTERLACED:
1544 break;
1545 default:
1546 return -EINVAL;
1547 }
1548
1549 f->fmt.pix.field = field;
1550 if (f->fmt.pix.width < 48)
1551 f->fmt.pix.width = 48;
1552 if (f->fmt.pix.height < 32)
1553 f->fmt.pix.height = 32;
1554 if (f->fmt.pix.width > maxw)
1555 f->fmt.pix.width = maxw;
1556 if (f->fmt.pix.height > maxh)
1557 f->fmt.pix.height = maxh;
1558 f->fmt.pix.width &= ~0x03;
1559 f->fmt.pix.bytesperline =
1560 (f->fmt.pix.width * fmt->depth) >> 3;
1561 f->fmt.pix.sizeimage =
1562 f->fmt.pix.height * f->fmt.pix.bytesperline;
1563
1564 return 0;
1565 }
1566 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
1567 if (saa7134_no_overlay > 0) {
1568 printk ("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1569 return -EINVAL;
1570 }
1571 err = verify_preview(dev,&f->fmt.win);
1572 if (0 != err)
1573 return err;
1574 return 0;
1575 case V4L2_BUF_TYPE_VBI_CAPTURE:
1576 saa7134_vbi_fmt(dev,f);
1577 return 0;
1578 default:
1579 return -EINVAL;
1580 }
1581 }
1582
1583 static int saa7134_s_fmt(struct saa7134_dev *dev, struct saa7134_fh *fh,
1584 struct v4l2_format *f)
1585 {
1586 unsigned long flags;
1587 int err;
1588
1589 switch (f->type) {
1590 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1591 err = saa7134_try_fmt(dev,fh,f);
1592 if (0 != err)
1593 return err;
1594
1595 fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1596 fh->width = f->fmt.pix.width;
1597 fh->height = f->fmt.pix.height;
1598 fh->cap.field = f->fmt.pix.field;
1599 return 0;
1600 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
1601 if (saa7134_no_overlay > 0) {
1602 printk ("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1603 return -EINVAL;
1604 }
1605 err = verify_preview(dev,&f->fmt.win);
1606 if (0 != err)
1607 return err;
1608
1609 mutex_lock(&dev->lock);
1610 fh->win = f->fmt.win;
1611 fh->nclips = f->fmt.win.clipcount;
1612 if (fh->nclips > 8)
1613 fh->nclips = 8;
1614 if (copy_from_user(fh->clips,f->fmt.win.clips,
1615 sizeof(struct v4l2_clip)*fh->nclips)) {
1616 mutex_unlock(&dev->lock);
1617 return -EFAULT;
1618 }
1619
1620 if (res_check(fh, RESOURCE_OVERLAY)) {
1621 spin_lock_irqsave(&dev->slock,flags);
1622 stop_preview(dev,fh);
1623 start_preview(dev,fh);
1624 spin_unlock_irqrestore(&dev->slock,flags);
1625 }
1626 mutex_unlock(&dev->lock);
1627 return 0;
1628 case V4L2_BUF_TYPE_VBI_CAPTURE:
1629 saa7134_vbi_fmt(dev,f);
1630 return 0;
1631 default:
1632 return -EINVAL;
1633 }
1634 }
1635
1636 int saa7134_common_ioctl(struct saa7134_dev *dev,
1637 unsigned int cmd, void *arg)
1638 {
1639 int err;
1640
1641 switch (cmd) {
1642 case VIDIOC_QUERYCTRL:
1643 {
1644 const struct v4l2_queryctrl *ctrl;
1645 struct v4l2_queryctrl *c = arg;
1646
1647 if ((c->id < V4L2_CID_BASE ||
1648 c->id >= V4L2_CID_LASTP1) &&
1649 (c->id < V4L2_CID_PRIVATE_BASE ||
1650 c->id >= V4L2_CID_PRIVATE_LASTP1))
1651 return -EINVAL;
1652 ctrl = ctrl_by_id(c->id);
1653 *c = (NULL != ctrl) ? *ctrl : no_ctrl;
1654 return 0;
1655 }
1656 case VIDIOC_G_CTRL:
1657 return get_control(dev,arg);
1658 case VIDIOC_S_CTRL:
1659 {
1660 mutex_lock(&dev->lock);
1661 err = set_control(dev,NULL,arg);
1662 mutex_unlock(&dev->lock);
1663 return err;
1664 }
1665 /* --- input switching --------------------------------------- */
1666 case VIDIOC_ENUMINPUT:
1667 {
1668 struct v4l2_input *i = arg;
1669 unsigned int n;
1670
1671 n = i->index;
1672 if (n >= SAA7134_INPUT_MAX)
1673 return -EINVAL;
1674 if (NULL == card_in(dev,i->index).name)
1675 return -EINVAL;
1676 memset(i,0,sizeof(*i));
1677 i->index = n;
1678 i->type = V4L2_INPUT_TYPE_CAMERA;
1679 strcpy(i->name,card_in(dev,n).name);
1680 if (card_in(dev,n).tv)
1681 i->type = V4L2_INPUT_TYPE_TUNER;
1682 i->audioset = 1;
1683 if (n == dev->ctl_input) {
1684 int v1 = saa_readb(SAA7134_STATUS_VIDEO1);
1685 int v2 = saa_readb(SAA7134_STATUS_VIDEO2);
1686
1687 if (0 != (v1 & 0x40))
1688 i->status |= V4L2_IN_ST_NO_H_LOCK;
1689 if (0 != (v2 & 0x40))
1690 i->status |= V4L2_IN_ST_NO_SYNC;
1691 if (0 != (v2 & 0x0e))
1692 i->status |= V4L2_IN_ST_MACROVISION;
1693 }
1694 for (n = 0; n < TVNORMS; n++)
1695 i->std |= tvnorms[n].id;
1696 return 0;
1697 }
1698 case VIDIOC_G_INPUT:
1699 {
1700 int *i = arg;
1701 *i = dev->ctl_input;
1702 return 0;
1703 }
1704 case VIDIOC_S_INPUT:
1705 {
1706 int *i = arg;
1707
1708 if (*i < 0 || *i >= SAA7134_INPUT_MAX)
1709 return -EINVAL;
1710 if (NULL == card_in(dev,*i).name)
1711 return -EINVAL;
1712 mutex_lock(&dev->lock);
1713 video_mux(dev,*i);
1714 mutex_unlock(&dev->lock);
1715 return 0;
1716 }
1717
1718 }
1719 return 0;
1720 }
1721 EXPORT_SYMBOL(saa7134_common_ioctl);
1722
1723 /*
1724 * This function is _not_ called directly, but from
1725 * video_generic_ioctl (and maybe others). userspace
1726 * copying is done already, arg is a kernel pointer.
1727 */
1728 static int video_do_ioctl(struct inode *inode, struct file *file,
1729 unsigned int cmd, void *arg)
1730 {
1731 struct saa7134_fh *fh = file->private_data;
1732 struct saa7134_dev *dev = fh->dev;
1733 unsigned long flags;
1734 int err;
1735
1736 if (video_debug > 1)
1737 v4l_print_ioctl(dev->name,cmd);
1738
1739 switch (cmd) {
1740 case VIDIOC_S_CTRL:
1741 case VIDIOC_S_STD:
1742 case VIDIOC_S_INPUT:
1743 case VIDIOC_S_TUNER:
1744 case VIDIOC_S_FREQUENCY:
1745 err = v4l2_prio_check(&dev->prio,&fh->prio);
1746 if (0 != err)
1747 return err;
1748 }
1749
1750 switch (cmd) {
1751 case VIDIOC_QUERYCAP:
1752 {
1753 struct v4l2_capability *cap = arg;
1754 unsigned int tuner_type = dev->tuner_type;
1755
1756 memset(cap,0,sizeof(*cap));
1757 strcpy(cap->driver, "saa7134");
1758 strlcpy(cap->card, saa7134_boards[dev->board].name,
1759 sizeof(cap->card));
1760 sprintf(cap->bus_info,"PCI:%s",pci_name(dev->pci));
1761 cap->version = SAA7134_VERSION_CODE;
1762 cap->capabilities =
1763 V4L2_CAP_VIDEO_CAPTURE |
1764 V4L2_CAP_VBI_CAPTURE |
1765 V4L2_CAP_READWRITE |
1766 V4L2_CAP_STREAMING |
1767 V4L2_CAP_TUNER;
1768 if (saa7134_no_overlay <= 0) {
1769 cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
1770 }
1771
1772 if ((tuner_type == TUNER_ABSENT) || (tuner_type == UNSET))
1773 cap->capabilities &= ~V4L2_CAP_TUNER;
1774
1775 return 0;
1776 }
1777
1778 /* --- tv standards ------------------------------------------ */
1779 case VIDIOC_ENUMSTD:
1780 {
1781 struct v4l2_standard *e = arg;
1782 unsigned int i;
1783
1784 i = e->index;
1785 if (i >= TVNORMS)
1786 return -EINVAL;
1787 err = v4l2_video_std_construct(e, tvnorms[e->index].id,
1788 tvnorms[e->index].name);
1789 e->index = i;
1790 if (err < 0)
1791 return err;
1792 return 0;
1793 }
1794 case VIDIOC_G_STD:
1795 {
1796 v4l2_std_id *id = arg;
1797
1798 *id = dev->tvnorm->id;
1799 return 0;
1800 }
1801 case VIDIOC_S_STD:
1802 {
1803 v4l2_std_id *id = arg;
1804 unsigned int i;
1805 v4l2_std_id fixup;
1806
1807 for (i = 0; i < TVNORMS; i++)
1808 if (*id == tvnorms[i].id)
1809 break;
1810 if (i == TVNORMS)
1811 for (i = 0; i < TVNORMS; i++)
1812 if (*id & tvnorms[i].id)
1813 break;
1814 if (i == TVNORMS)
1815 return -EINVAL;
1816 if ((*id & V4L2_STD_SECAM) && (secam[0] != '-')) {
1817 if (secam[0] == 'L' || secam[0] == 'l') {
1818 if (secam[1] == 'C' || secam[1] == 'c')
1819 fixup = V4L2_STD_SECAM_LC;
1820 else
1821 fixup = V4L2_STD_SECAM_L;
1822 } else {
1823 if (secam[0] == 'D' || secam[0] == 'd')
1824 fixup = V4L2_STD_SECAM_DK;
1825 else
1826 fixup = V4L2_STD_SECAM;
1827 }
1828 for (i = 0; i < TVNORMS; i++)
1829 if (fixup == tvnorms[i].id)
1830 break;
1831 }
1832 mutex_lock(&dev->lock);
1833 if (res_check(fh, RESOURCE_OVERLAY)) {
1834 spin_lock_irqsave(&dev->slock,flags);
1835 stop_preview(dev,fh);
1836 set_tvnorm(dev,&tvnorms[i]);
1837 start_preview(dev,fh);
1838 spin_unlock_irqrestore(&dev->slock,flags);
1839 } else
1840 set_tvnorm(dev,&tvnorms[i]);
1841 saa7134_tvaudio_do_scan(dev);
1842 mutex_unlock(&dev->lock);
1843 return 0;
1844 }
1845
1846 case VIDIOC_CROPCAP:
1847 {
1848 struct v4l2_cropcap *cap = arg;
1849
1850 if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1851 cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1852 return -EINVAL;
1853 cap->bounds = dev->crop_bounds;
1854 cap->defrect = dev->crop_defrect;
1855 cap->pixelaspect.numerator = 1;
1856 cap->pixelaspect.denominator = 1;
1857 if (dev->tvnorm->id & V4L2_STD_525_60) {
1858 cap->pixelaspect.numerator = 11;
1859 cap->pixelaspect.denominator = 10;
1860 }
1861 if (dev->tvnorm->id & V4L2_STD_625_50) {
1862 cap->pixelaspect.numerator = 54;
1863 cap->pixelaspect.denominator = 59;
1864 }
1865 return 0;
1866 }
1867
1868 case VIDIOC_G_CROP:
1869 {
1870 struct v4l2_crop * crop = arg;
1871
1872 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1873 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1874 return -EINVAL;
1875 crop->c = dev->crop_current;
1876 return 0;
1877 }
1878 case VIDIOC_S_CROP:
1879 {
1880 struct v4l2_crop *crop = arg;
1881 struct v4l2_rect *b = &dev->crop_bounds;
1882
1883 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1884 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1885 return -EINVAL;
1886 if (crop->c.height < 0)
1887 return -EINVAL;
1888 if (crop->c.width < 0)
1889 return -EINVAL;
1890
1891 if (res_locked(fh->dev,RESOURCE_OVERLAY))
1892 return -EBUSY;
1893 if (res_locked(fh->dev,RESOURCE_VIDEO))
1894 return -EBUSY;
1895
1896 if (crop->c.top < b->top)
1897 crop->c.top = b->top;
1898 if (crop->c.top > b->top + b->height)
1899 crop->c.top = b->top + b->height;
1900 if (crop->c.height > b->top - crop->c.top + b->height)
1901 crop->c.height = b->top - crop->c.top + b->height;
1902
1903 if (crop->c.left < b->left)
1904 crop->c.left = b->left;
1905 if (crop->c.left > b->left + b->width)
1906 crop->c.left = b->left + b->width;
1907 if (crop->c.width > b->left - crop->c.left + b->width)
1908 crop->c.width = b->left - crop->c.left + b->width;
1909
1910 dev->crop_current = crop->c;
1911 return 0;
1912 }
1913
1914 /* --- tuner ioctls ------------------------------------------ */
1915 case VIDIOC_G_TUNER:
1916 {
1917 struct v4l2_tuner *t = arg;
1918 int n;
1919
1920 if (0 != t->index)
1921 return -EINVAL;
1922 memset(t,0,sizeof(*t));
1923 for (n = 0; n < SAA7134_INPUT_MAX; n++)
1924 if (card_in(dev,n).tv)
1925 break;
1926 if (NULL != card_in(dev,n).name) {
1927 strcpy(t->name, "Television");
1928 t->type = V4L2_TUNER_ANALOG_TV;
1929 t->capability = V4L2_TUNER_CAP_NORM |
1930 V4L2_TUNER_CAP_STEREO |
1931 V4L2_TUNER_CAP_LANG1 |
1932 V4L2_TUNER_CAP_LANG2;
1933 t->rangehigh = 0xffffffffUL;
1934 t->rxsubchans = saa7134_tvaudio_getstereo(dev);
1935 t->audmode = saa7134_tvaudio_rx2mode(t->rxsubchans);
1936 }
1937 if (0 != (saa_readb(SAA7134_STATUS_VIDEO1) & 0x03))
1938 t->signal = 0xffff;
1939 return 0;
1940 }
1941 case VIDIOC_S_TUNER:
1942 {
1943 struct v4l2_tuner *t = arg;
1944 int rx,mode;
1945
1946 mode = dev->thread.mode;
1947 if (UNSET == mode) {
1948 rx = saa7134_tvaudio_getstereo(dev);
1949 mode = saa7134_tvaudio_rx2mode(t->rxsubchans);
1950 }
1951 if (mode != t->audmode) {
1952 dev->thread.mode = t->audmode;
1953 }
1954 return 0;
1955 }
1956 case VIDIOC_G_FREQUENCY:
1957 {
1958 struct v4l2_frequency *f = arg;
1959
1960 memset(f,0,sizeof(*f));
1961 f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1962 f->frequency = dev->ctl_freq;
1963 return 0;
1964 }
1965 case VIDIOC_S_FREQUENCY:
1966 {
1967 struct v4l2_frequency *f = arg;
1968
1969 if (0 != f->tuner)
1970 return -EINVAL;
1971 if (0 == fh->radio && V4L2_TUNER_ANALOG_TV != f->type)
1972 return -EINVAL;
1973 if (1 == fh->radio && V4L2_TUNER_RADIO != f->type)
1974 return -EINVAL;
1975 mutex_lock(&dev->lock);
1976 dev->ctl_freq = f->frequency;
1977
1978 saa7134_i2c_call_clients(dev,VIDIOC_S_FREQUENCY,f);
1979
1980 saa7134_tvaudio_do_scan(dev);
1981 mutex_unlock(&dev->lock);
1982 return 0;
1983 }
1984
1985 /* --- control ioctls ---------------------------------------- */
1986 case VIDIOC_ENUMINPUT:
1987 case VIDIOC_G_INPUT:
1988 case VIDIOC_S_INPUT:
1989 case VIDIOC_QUERYCTRL:
1990 case VIDIOC_G_CTRL:
1991 case VIDIOC_S_CTRL:
1992 return saa7134_common_ioctl(dev, cmd, arg);
1993
1994 case VIDIOC_G_AUDIO:
1995 {
1996 struct v4l2_audio *a = arg;
1997
1998 memset(a,0,sizeof(*a));
1999 strcpy(a->name,"audio");
2000 return 0;
2001 }
2002 case VIDIOC_S_AUDIO:
2003 return 0;
2004 case VIDIOC_G_PARM:
2005 {
2006 struct v4l2_captureparm *parm = arg;
2007 memset(parm,0,sizeof(*parm));
2008 return 0;
2009 }
2010
2011 case VIDIOC_G_PRIORITY:
2012 {
2013 enum v4l2_priority *p = arg;
2014
2015 *p = v4l2_prio_max(&dev->prio);
2016 return 0;
2017 }
2018 case VIDIOC_S_PRIORITY:
2019 {
2020 enum v4l2_priority *prio = arg;
2021
2022 return v4l2_prio_change(&dev->prio, &fh->prio, *prio);
2023 }
2024
2025 /* --- preview ioctls ---------------------------------------- */
2026 case VIDIOC_ENUM_FMT:
2027 {
2028 struct v4l2_fmtdesc *f = arg;
2029 enum v4l2_buf_type type;
2030 unsigned int index;
2031
2032 index = f->index;
2033 type = f->type;
2034 switch (type) {
2035 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2036 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2037 if (saa7134_no_overlay > 0) {
2038 printk ("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2039 return -EINVAL;
2040 }
2041 if (index >= FORMATS)
2042 return -EINVAL;
2043 if (f->type == V4L2_BUF_TYPE_VIDEO_OVERLAY &&
2044 formats[index].planar)
2045 return -EINVAL;
2046 memset(f,0,sizeof(*f));
2047 f->index = index;
2048 f->type = type;
2049 strlcpy(f->description,formats[index].name,sizeof(f->description));
2050 f->pixelformat = formats[index].fourcc;
2051 break;
2052 case V4L2_BUF_TYPE_VBI_CAPTURE:
2053 if (0 != index)
2054 return -EINVAL;
2055 memset(f,0,sizeof(*f));
2056 f->index = index;
2057 f->type = type;
2058 f->pixelformat = V4L2_PIX_FMT_GREY;
2059 strcpy(f->description,"vbi data");
2060 break;
2061 default:
2062 return -EINVAL;
2063 }
2064 return 0;
2065 }
2066 case VIDIOC_G_FBUF:
2067 {
2068 struct v4l2_framebuffer *fb = arg;
2069
2070 *fb = dev->ovbuf;
2071 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
2072 return 0;
2073 }
2074 case VIDIOC_S_FBUF:
2075 {
2076 struct v4l2_framebuffer *fb = arg;
2077 struct saa7134_format *fmt;
2078
2079 if(!capable(CAP_SYS_ADMIN) &&
2080 !capable(CAP_SYS_RAWIO))
2081 return -EPERM;
2082
2083 /* check args */
2084 fmt = format_by_fourcc(fb->fmt.pixelformat);
2085 if (NULL == fmt)
2086 return -EINVAL;
2087
2088 /* ok, accept it */
2089 dev->ovbuf = *fb;
2090 dev->ovfmt = fmt;
2091 if (0 == dev->ovbuf.fmt.bytesperline)
2092 dev->ovbuf.fmt.bytesperline =
2093 dev->ovbuf.fmt.width*fmt->depth/8;
2094 return 0;
2095 }
2096 case VIDIOC_OVERLAY:
2097 {
2098 int *on = arg;
2099
2100 if (*on) {
2101 if (saa7134_no_overlay > 0) {
2102 printk ("no_overlay\n");
2103 return -EINVAL;
2104 }
2105
2106 if (!res_get(dev,fh,RESOURCE_OVERLAY))
2107 return -EBUSY;
2108 spin_lock_irqsave(&dev->slock,flags);
2109 start_preview(dev,fh);
2110 spin_unlock_irqrestore(&dev->slock,flags);
2111 }
2112 if (!*on) {
2113 if (!res_check(fh, RESOURCE_OVERLAY))
2114 return -EINVAL;
2115 spin_lock_irqsave(&dev->slock,flags);
2116 stop_preview(dev,fh);
2117 spin_unlock_irqrestore(&dev->slock,flags);
2118 res_free(dev,fh,RESOURCE_OVERLAY);
2119 }
2120 return 0;
2121 }
2122
2123 /* --- capture ioctls ---------------------------------------- */
2124 case VIDIOC_G_FMT:
2125 {
2126 struct v4l2_format *f = arg;
2127 return saa7134_g_fmt(dev,fh,f);
2128 }
2129 case VIDIOC_S_FMT:
2130 {
2131 struct v4l2_format *f = arg;
2132 return saa7134_s_fmt(dev,fh,f);
2133 }
2134 case VIDIOC_TRY_FMT:
2135 {
2136 struct v4l2_format *f = arg;
2137 return saa7134_try_fmt(dev,fh,f);
2138 }
2139 #ifdef CONFIG_VIDEO_V4L1_COMPAT
2140 case VIDIOCGMBUF:
2141 {
2142 struct video_mbuf *mbuf = arg;
2143 struct videobuf_queue *q;
2144 struct v4l2_requestbuffers req;
2145 unsigned int i;
2146
2147 q = saa7134_queue(fh);
2148 memset(&req,0,sizeof(req));
2149 req.type = q->type;
2150 req.count = gbuffers;
2151 req.memory = V4L2_MEMORY_MMAP;
2152 err = videobuf_reqbufs(q,&req);
2153 if (err < 0)
2154 return err;
2155 memset(mbuf,0,sizeof(*mbuf));
2156 mbuf->frames = req.count;
2157 mbuf->size = 0;
2158 for (i = 0; i < mbuf->frames; i++) {
2159 mbuf->offsets[i] = q->bufs[i]->boff;
2160 mbuf->size += q->bufs[i]->bsize;
2161 }
2162 return 0;
2163 }
2164 #endif
2165 case VIDIOC_REQBUFS:
2166 return videobuf_reqbufs(saa7134_queue(fh),arg);
2167
2168 case VIDIOC_QUERYBUF:
2169 return videobuf_querybuf(saa7134_queue(fh),arg);
2170
2171 case VIDIOC_QBUF:
2172 return videobuf_qbuf(saa7134_queue(fh),arg);
2173
2174 case VIDIOC_DQBUF:
2175 return videobuf_dqbuf(saa7134_queue(fh),arg,
2176 file->f_flags & O_NONBLOCK);
2177
2178 case VIDIOC_STREAMON:
2179 {
2180 int res = saa7134_resource(fh);
2181
2182 if (!res_get(dev,fh,res))
2183 return -EBUSY;
2184 return videobuf_streamon(saa7134_queue(fh));
2185 }
2186 case VIDIOC_STREAMOFF:
2187 {
2188 int res = saa7134_resource(fh);
2189
2190 err = videobuf_streamoff(saa7134_queue(fh));
2191 if (err < 0)
2192 return err;
2193 res_free(dev,fh,res);
2194 return 0;
2195 }
2196
2197 default:
2198 return v4l_compat_translate_ioctl(inode,file,cmd,arg,
2199 video_do_ioctl);
2200 }
2201 return 0;
2202 }
2203
2204 static int video_ioctl(struct inode *inode, struct file *file,
2205 unsigned int cmd, unsigned long arg)
2206 {
2207 return video_usercopy(inode, file, cmd, arg, video_do_ioctl);
2208 }
2209
2210 static int radio_do_ioctl(struct inode *inode, struct file *file,
2211 unsigned int cmd, void *arg)
2212 {
2213 struct saa7134_fh *fh = file->private_data;
2214 struct saa7134_dev *dev = fh->dev;
2215
2216 if (video_debug > 1)
2217 v4l_print_ioctl(dev->name,cmd);
2218 switch (cmd) {
2219 case VIDIOC_QUERYCAP:
2220 {
2221 struct v4l2_capability *cap = arg;
2222
2223 memset(cap,0,sizeof(*cap));
2224 strcpy(cap->driver, "saa7134");
2225 strlcpy(cap->card, saa7134_boards[dev->board].name,
2226 sizeof(cap->card));
2227 sprintf(cap->bus_info,"PCI:%s",pci_name(dev->pci));
2228 cap->version = SAA7134_VERSION_CODE;
2229 cap->capabilities = V4L2_CAP_TUNER;
2230 return 0;
2231 }
2232 case VIDIOC_G_TUNER:
2233 {
2234 struct v4l2_tuner *t = arg;
2235
2236 if (0 != t->index)
2237 return -EINVAL;
2238
2239 memset(t,0,sizeof(*t));
2240 strcpy(t->name, "Radio");
2241 t->type = V4L2_TUNER_RADIO;
2242
2243 saa7134_i2c_call_clients(dev, VIDIOC_G_TUNER, t);
2244 if (dev->input->amux == TV) {
2245 t->signal = 0xf800 - ((saa_readb(0x581) & 0x1f) << 11);
2246 t->rxsubchans = (saa_readb(0x529) & 0x08) ?
2247 V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO;
2248 }
2249 return 0;
2250 }
2251 case VIDIOC_S_TUNER:
2252 {
2253 struct v4l2_tuner *t = arg;
2254
2255 if (0 != t->index)
2256 return -EINVAL;
2257
2258 saa7134_i2c_call_clients(dev,VIDIOC_S_TUNER,t);
2259
2260 return 0;
2261 }
2262 case VIDIOC_ENUMINPUT:
2263 {
2264 struct v4l2_input *i = arg;
2265
2266 if (i->index != 0)
2267 return -EINVAL;
2268 strcpy(i->name,"Radio");
2269 i->type = V4L2_INPUT_TYPE_TUNER;
2270 return 0;
2271 }
2272 case VIDIOC_G_INPUT:
2273 {
2274 int *i = arg;
2275 *i = 0;
2276 return 0;
2277 }
2278 case VIDIOC_G_AUDIO:
2279 {
2280 struct v4l2_audio *a = arg;
2281
2282 memset(a,0,sizeof(*a));
2283 strcpy(a->name,"Radio");
2284 return 0;
2285 }
2286 case VIDIOC_G_STD:
2287 {
2288 v4l2_std_id *id = arg;
2289 *id = 0;
2290 return 0;
2291 }
2292 case VIDIOC_S_AUDIO:
2293 case VIDIOC_S_INPUT:
2294 case VIDIOC_S_STD:
2295 return 0;
2296
2297 case VIDIOC_QUERYCTRL:
2298 {
2299 const struct v4l2_queryctrl *ctrl;
2300 struct v4l2_queryctrl *c = arg;
2301
2302 if (c->id < V4L2_CID_BASE ||
2303 c->id >= V4L2_CID_LASTP1)
2304 return -EINVAL;
2305 if (c->id == V4L2_CID_AUDIO_MUTE) {
2306 ctrl = ctrl_by_id(c->id);
2307 *c = *ctrl;
2308 } else
2309 *c = no_ctrl;
2310 return 0;
2311 }
2312
2313 case VIDIOC_G_CTRL:
2314 case VIDIOC_S_CTRL:
2315 case VIDIOC_G_FREQUENCY:
2316 case VIDIOC_S_FREQUENCY:
2317 return video_do_ioctl(inode,file,cmd,arg);
2318
2319 default:
2320 return v4l_compat_translate_ioctl(inode,file,cmd,arg,
2321 radio_do_ioctl);
2322 }
2323 return 0;
2324 }
2325
2326 static int radio_ioctl(struct inode *inode, struct file *file,
2327 unsigned int cmd, unsigned long arg)
2328 {
2329 return video_usercopy(inode, file, cmd, arg, radio_do_ioctl);
2330 }
2331
2332 static const struct file_operations video_fops =
2333 {
2334 .owner = THIS_MODULE,
2335 .open = video_open,
2336 .release = video_release,
2337 .read = video_read,
2338 .poll = video_poll,
2339 .mmap = video_mmap,
2340 .ioctl = video_ioctl,
2341 .compat_ioctl = v4l_compat_ioctl32,
2342 .llseek = no_llseek,
2343 };
2344
2345 static const struct file_operations radio_fops =
2346 {
2347 .owner = THIS_MODULE,
2348 .open = video_open,
2349 .release = video_release,
2350 .ioctl = radio_ioctl,
2351 .compat_ioctl = v4l_compat_ioctl32,
2352 .llseek = no_llseek,
2353 };
2354
2355 /* ----------------------------------------------------------- */
2356 /* exported stuff */
2357
2358 struct video_device saa7134_video_template =
2359 {
2360 .name = "saa7134-video",
2361 .type = VID_TYPE_CAPTURE|VID_TYPE_TUNER|
2362 VID_TYPE_CLIPPING|VID_TYPE_SCALES,
2363 .hardware = 0,
2364 .fops = &video_fops,
2365 .minor = -1,
2366 };
2367
2368 struct video_device saa7134_vbi_template =
2369 {
2370 .name = "saa7134-vbi",
2371 .type = VID_TYPE_TUNER|VID_TYPE_TELETEXT,
2372 .hardware = 0,
2373 .fops = &video_fops,
2374 .minor = -1,
2375 };
2376
2377 struct video_device saa7134_radio_template =
2378 {
2379 .name = "saa7134-radio",
2380 .type = VID_TYPE_TUNER,
2381 .hardware = 0,
2382 .fops = &radio_fops,
2383 .minor = -1,
2384 };
2385
2386 int saa7134_video_init1(struct saa7134_dev *dev)
2387 {
2388 /* sanitycheck insmod options */
2389 if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
2390 gbuffers = 2;
2391 if (gbufsize < 0 || gbufsize > gbufsize_max)
2392 gbufsize = gbufsize_max;
2393 gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
2394
2395 /* put some sensible defaults into the data structures ... */
2396 dev->ctl_bright = ctrl_by_id(V4L2_CID_BRIGHTNESS)->default_value;
2397 dev->ctl_contrast = ctrl_by_id(V4L2_CID_CONTRAST)->default_value;
2398 dev->ctl_hue = ctrl_by_id(V4L2_CID_HUE)->default_value;
2399 dev->ctl_saturation = ctrl_by_id(V4L2_CID_SATURATION)->default_value;
2400 dev->ctl_volume = ctrl_by_id(V4L2_CID_AUDIO_VOLUME)->default_value;
2401 dev->ctl_mute = 1; // ctrl_by_id(V4L2_CID_AUDIO_MUTE)->default_value;
2402 dev->ctl_invert = ctrl_by_id(V4L2_CID_PRIVATE_INVERT)->default_value;
2403 dev->ctl_automute = ctrl_by_id(V4L2_CID_PRIVATE_AUTOMUTE)->default_value;
2404
2405 if (dev->tda9887_conf && dev->ctl_automute)
2406 dev->tda9887_conf |= TDA9887_AUTOMUTE;
2407 dev->automute = 0;
2408
2409 INIT_LIST_HEAD(&dev->video_q.queue);
2410 init_timer(&dev->video_q.timeout);
2411 dev->video_q.timeout.function = saa7134_buffer_timeout;
2412 dev->video_q.timeout.data = (unsigned long)(&dev->video_q);
2413 dev->video_q.dev = dev;
2414
2415 if (saa7134_boards[dev->board].video_out) {
2416 /* enable video output */
2417 int vo = saa7134_boards[dev->board].video_out;
2418 int video_reg;
2419 unsigned int vid_port_opts = saa7134_boards[dev->board].vid_port_opts;
2420 saa_writeb(SAA7134_VIDEO_PORT_CTRL0, video_out[vo][0]);
2421 video_reg = video_out[vo][1];
2422 if (vid_port_opts & SET_T_CODE_POLARITY_NON_INVERTED)
2423 video_reg &= ~VP_T_CODE_P_INVERTED;
2424 saa_writeb(SAA7134_VIDEO_PORT_CTRL1, video_reg);
2425 saa_writeb(SAA7134_VIDEO_PORT_CTRL2, video_out[vo][2]);
2426 saa_writeb(SAA7134_VIDEO_PORT_CTRL3, video_out[vo][3]);
2427 saa_writeb(SAA7134_VIDEO_PORT_CTRL4, video_out[vo][4]);
2428 video_reg = video_out[vo][5];
2429 if (vid_port_opts & SET_CLOCK_NOT_DELAYED)
2430 video_reg &= ~VP_CLK_CTRL2_DELAYED;
2431 if (vid_port_opts & SET_CLOCK_INVERTED)
2432 video_reg |= VP_CLK_CTRL1_INVERTED;
2433 saa_writeb(SAA7134_VIDEO_PORT_CTRL5, video_reg);
2434 video_reg = video_out[vo][6];
2435 if (vid_port_opts & SET_VSYNC_OFF) {
2436 video_reg &= ~VP_VS_TYPE_MASK;
2437 video_reg |= VP_VS_TYPE_OFF;
2438 }
2439 saa_writeb(SAA7134_VIDEO_PORT_CTRL6, video_reg);
2440 saa_writeb(SAA7134_VIDEO_PORT_CTRL7, video_out[vo][7]);
2441 saa_writeb(SAA7134_VIDEO_PORT_CTRL8, video_out[vo][8]);
2442 }
2443
2444 return 0;
2445 }
2446
2447 int saa7134_video_init2(struct saa7134_dev *dev)
2448 {
2449 /* init video hw */
2450 set_tvnorm(dev,&tvnorms[0]);
2451 video_mux(dev,0);
2452 saa7134_tvaudio_setmute(dev);
2453 saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
2454 return 0;
2455 }
2456
2457 void saa7134_irq_video_intl(struct saa7134_dev *dev)
2458 {
2459 static const char *st[] = {
2460 "(no signal)", "NTSC", "PAL", "SECAM" };
2461 u32 st1,st2;
2462
2463 st1 = saa_readb(SAA7134_STATUS_VIDEO1);
2464 st2 = saa_readb(SAA7134_STATUS_VIDEO2);
2465 dprintk("DCSDT: pll: %s, sync: %s, norm: %s\n",
2466 (st1 & 0x40) ? "not locked" : "locked",
2467 (st2 & 0x40) ? "no" : "yes",
2468 st[st1 & 0x03]);
2469 dev->nosignal = (st1 & 0x40) || (st2 & 0x40);
2470
2471 if (dev->nosignal) {
2472 /* no video signal -> mute audio */
2473 if (dev->ctl_automute)
2474 dev->automute = 1;
2475 saa7134_tvaudio_setmute(dev);
2476 saa_setb(SAA7134_SYNC_CTRL, 0x20);
2477 } else {
2478 /* wake up tvaudio audio carrier scan thread */
2479 saa7134_tvaudio_do_scan(dev);
2480 if (!noninterlaced)
2481 saa_clearb(SAA7134_SYNC_CTRL, 0x20);
2482 }
2483 if (dev->mops && dev->mops->signal_change)
2484 dev->mops->signal_change(dev);
2485 }
2486
2487 void saa7134_irq_video_done(struct saa7134_dev *dev, unsigned long status)
2488 {
2489 enum v4l2_field field;
2490
2491 spin_lock(&dev->slock);
2492 if (dev->video_q.curr) {
2493 dev->video_fieldcount++;
2494 field = dev->video_q.curr->vb.field;
2495 if (V4L2_FIELD_HAS_BOTH(field)) {
2496 /* make sure we have seen both fields */
2497 if ((status & 0x10) == 0x00) {
2498 dev->video_q.curr->top_seen = 1;
2499 goto done;
2500 }
2501 if (!dev->video_q.curr->top_seen)
2502 goto done;
2503 } else if (field == V4L2_FIELD_TOP) {
2504 if ((status & 0x10) != 0x10)
2505 goto done;
2506 } else if (field == V4L2_FIELD_BOTTOM) {
2507 if ((status & 0x10) != 0x00)
2508 goto done;
2509 }
2510 dev->video_q.curr->vb.field_count = dev->video_fieldcount;
2511 saa7134_buffer_finish(dev,&dev->video_q,STATE_DONE);
2512 }
2513 saa7134_buffer_next(dev,&dev->video_q);
2514
2515 done:
2516 spin_unlock(&dev->slock);
2517 }
2518
2519 /* ----------------------------------------------------------- */
2520 /*
2521 * Local variables:
2522 * c-basic-offset: 8
2523 * End:
2524 */
Tomato firmware and modifications.