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/kernel.h>
27 #include <linux/slab.h>
28 #include <linux/sort.h>
29
30 #include <media/v4l2-common.h>
31 #include <media/v4l2-event.h>
32 #include <media/saa6588.h>
33
34 #include "saa7134-reg.h"
35 #include "saa7134.h"
36
37 /* ------------------------------------------------------------------ */
38
39 unsigned int video_debug;
40 static unsigned int gbuffers = 8;
41 static unsigned int noninterlaced; /* 0 */
42 static unsigned int gbufsize = 720*576*4;
43 static unsigned int gbufsize_max = 720*576*4;
44 static char secam[] = "--";
45 module_param(video_debug, int, 0644);
46 MODULE_PARM_DESC(video_debug,"enable debug messages [video]");
47 module_param(gbuffers, int, 0444);
48 MODULE_PARM_DESC(gbuffers,"number of capture buffers, range 2-32");
49 module_param(noninterlaced, int, 0644);
50 MODULE_PARM_DESC(noninterlaced,"capture non interlaced video");
51 module_param_string(secam, secam, sizeof(secam), 0644);
52 MODULE_PARM_DESC(secam, "force SECAM variant, either DK,L or Lc");
53
54
55 #define dprintk(fmt, arg...) if (video_debug&0x04) \
56 printk(KERN_DEBUG "%s/video: " fmt, dev->name , ## arg)
57
58 /* ------------------------------------------------------------------ */
59 /* Defines for Video Output Port Register at address 0x191 */
60
61 /* Bit 0: VIP code T bit polarity */
62
63 #define VP_T_CODE_P_NON_INVERTED 0x00
64 #define VP_T_CODE_P_INVERTED 0x01
65
66 /* ------------------------------------------------------------------ */
67 /* Defines for Video Output Port Register at address 0x195 */
68
69 /* Bit 2: Video output clock delay control */
70
71 #define VP_CLK_CTRL2_NOT_DELAYED 0x00
72 #define VP_CLK_CTRL2_DELAYED 0x04
73
74 /* Bit 1: Video output clock invert control */
75
76 #define VP_CLK_CTRL1_NON_INVERTED 0x00
77 #define VP_CLK_CTRL1_INVERTED 0x02
78
79 /* ------------------------------------------------------------------ */
80 /* Defines for Video Output Port Register at address 0x196 */
81
82 /* Bits 2 to 0: VSYNC pin video vertical sync type */
83
84 #define VP_VS_TYPE_MASK 0x07
85
86 #define VP_VS_TYPE_OFF 0x00
87 #define VP_VS_TYPE_V123 0x01
88 #define VP_VS_TYPE_V_ITU 0x02
89 #define VP_VS_TYPE_VGATE_L 0x03
90 #define VP_VS_TYPE_RESERVED1 0x04
91 #define VP_VS_TYPE_RESERVED2 0x05
92 #define VP_VS_TYPE_F_ITU 0x06
93 #define VP_VS_TYPE_SC_FID 0x07
94
95 /* ------------------------------------------------------------------ */
96 /* data structs for video */
97
98 static int video_out[][9] = {
99 [CCIR656] = { 0x00, 0xb1, 0x00, 0xa1, 0x00, 0x04, 0x06, 0x00, 0x00 },
100 };
101
102 static struct saa7134_format formats[] = {
103 {
104 .name = "8 bpp gray",
105 .fourcc = V4L2_PIX_FMT_GREY,
106 .depth = 8,
107 .pm = 0x06,
108 },{
109 .name = "15 bpp RGB, le",
110 .fourcc = V4L2_PIX_FMT_RGB555,
111 .depth = 16,
112 .pm = 0x13 | 0x80,
113 },{
114 .name = "15 bpp RGB, be",
115 .fourcc = V4L2_PIX_FMT_RGB555X,
116 .depth = 16,
117 .pm = 0x13 | 0x80,
118 .bswap = 1,
119 },{
120 .name = "16 bpp RGB, le",
121 .fourcc = V4L2_PIX_FMT_RGB565,
122 .depth = 16,
123 .pm = 0x10 | 0x80,
124 },{
125 .name = "16 bpp RGB, be",
126 .fourcc = V4L2_PIX_FMT_RGB565X,
127 .depth = 16,
128 .pm = 0x10 | 0x80,
129 .bswap = 1,
130 },{
131 .name = "24 bpp RGB, le",
132 .fourcc = V4L2_PIX_FMT_BGR24,
133 .depth = 24,
134 .pm = 0x11,
135 },{
136 .name = "24 bpp RGB, be",
137 .fourcc = V4L2_PIX_FMT_RGB24,
138 .depth = 24,
139 .pm = 0x11,
140 .bswap = 1,
141 },{
142 .name = "32 bpp RGB, le",
143 .fourcc = V4L2_PIX_FMT_BGR32,
144 .depth = 32,
145 .pm = 0x12,
146 },{
147 .name = "32 bpp RGB, be",
148 .fourcc = V4L2_PIX_FMT_RGB32,
149 .depth = 32,
150 .pm = 0x12,
151 .bswap = 1,
152 .wswap = 1,
153 },{
154 .name = "4:2:2 packed, YUYV",
155 .fourcc = V4L2_PIX_FMT_YUYV,
156 .depth = 16,
157 .pm = 0x00,
158 .bswap = 1,
159 .yuv = 1,
160 },{
161 .name = "4:2:2 packed, UYVY",
162 .fourcc = V4L2_PIX_FMT_UYVY,
163 .depth = 16,
164 .pm = 0x00,
165 .yuv = 1,
166 },{
167 .name = "4:2:2 planar, Y-Cb-Cr",
168 .fourcc = V4L2_PIX_FMT_YUV422P,
169 .depth = 16,
170 .pm = 0x09,
171 .yuv = 1,
172 .planar = 1,
173 .hshift = 1,
174 .vshift = 0,
175 },{
176 .name = "4:2:0 planar, Y-Cb-Cr",
177 .fourcc = V4L2_PIX_FMT_YUV420,
178 .depth = 12,
179 .pm = 0x0a,
180 .yuv = 1,
181 .planar = 1,
182 .hshift = 1,
183 .vshift = 1,
184 },{
185 .name = "4:2:0 planar, Y-Cb-Cr",
186 .fourcc = V4L2_PIX_FMT_YVU420,
187 .depth = 12,
188 .pm = 0x0a,
189 .yuv = 1,
190 .planar = 1,
191 .uvswap = 1,
192 .hshift = 1,
193 .vshift = 1,
194 }
195 };
196 #define FORMATS ARRAY_SIZE(formats)
197
198 #define NORM_625_50 \
199 .h_start = 0, \
200 .h_stop = 719, \
201 .video_v_start = 24, \
202 .video_v_stop = 311, \
203 .vbi_v_start_0 = 7, \
204 .vbi_v_stop_0 = 23, \
205 .vbi_v_start_1 = 319, \
206 .src_timing = 4
207
208 #define NORM_525_60 \
209 .h_start = 0, \
210 .h_stop = 719, \
211 .video_v_start = 23, \
212 .video_v_stop = 262, \
213 .vbi_v_start_0 = 10, \
214 .vbi_v_stop_0 = 21, \
215 .vbi_v_start_1 = 273, \
216 .src_timing = 7
217
218 static struct saa7134_tvnorm tvnorms[] = {
219 {
220 .name = "PAL", /* autodetect */
221 .id = V4L2_STD_PAL,
222 NORM_625_50,
223
224 .sync_control = 0x18,
225 .luma_control = 0x40,
226 .chroma_ctrl1 = 0x81,
227 .chroma_gain = 0x2a,
228 .chroma_ctrl2 = 0x06,
229 .vgate_misc = 0x1c,
230
231 },{
232 .name = "PAL-BG",
233 .id = V4L2_STD_PAL_BG,
234 NORM_625_50,
235
236 .sync_control = 0x18,
237 .luma_control = 0x40,
238 .chroma_ctrl1 = 0x81,
239 .chroma_gain = 0x2a,
240 .chroma_ctrl2 = 0x06,
241 .vgate_misc = 0x1c,
242
243 },{
244 .name = "PAL-I",
245 .id = V4L2_STD_PAL_I,
246 NORM_625_50,
247
248 .sync_control = 0x18,
249 .luma_control = 0x40,
250 .chroma_ctrl1 = 0x81,
251 .chroma_gain = 0x2a,
252 .chroma_ctrl2 = 0x06,
253 .vgate_misc = 0x1c,
254
255 },{
256 .name = "PAL-DK",
257 .id = V4L2_STD_PAL_DK,
258 NORM_625_50,
259
260 .sync_control = 0x18,
261 .luma_control = 0x40,
262 .chroma_ctrl1 = 0x81,
263 .chroma_gain = 0x2a,
264 .chroma_ctrl2 = 0x06,
265 .vgate_misc = 0x1c,
266
267 },{
268 .name = "NTSC",
269 .id = V4L2_STD_NTSC,
270 NORM_525_60,
271
272 .sync_control = 0x59,
273 .luma_control = 0x40,
274 .chroma_ctrl1 = 0x89,
275 .chroma_gain = 0x2a,
276 .chroma_ctrl2 = 0x0e,
277 .vgate_misc = 0x18,
278
279 },{
280 .name = "SECAM",
281 .id = V4L2_STD_SECAM,
282 NORM_625_50,
283
284 .sync_control = 0x18,
285 .luma_control = 0x1b,
286 .chroma_ctrl1 = 0xd1,
287 .chroma_gain = 0x80,
288 .chroma_ctrl2 = 0x00,
289 .vgate_misc = 0x1c,
290
291 },{
292 .name = "SECAM-DK",
293 .id = V4L2_STD_SECAM_DK,
294 NORM_625_50,
295
296 .sync_control = 0x18,
297 .luma_control = 0x1b,
298 .chroma_ctrl1 = 0xd1,
299 .chroma_gain = 0x80,
300 .chroma_ctrl2 = 0x00,
301 .vgate_misc = 0x1c,
302
303 },{
304 .name = "SECAM-L",
305 .id = V4L2_STD_SECAM_L,
306 NORM_625_50,
307
308 .sync_control = 0x18,
309 .luma_control = 0x1b,
310 .chroma_ctrl1 = 0xd1,
311 .chroma_gain = 0x80,
312 .chroma_ctrl2 = 0x00,
313 .vgate_misc = 0x1c,
314
315 },{
316 .name = "SECAM-Lc",
317 .id = V4L2_STD_SECAM_LC,
318 NORM_625_50,
319
320 .sync_control = 0x18,
321 .luma_control = 0x1b,
322 .chroma_ctrl1 = 0xd1,
323 .chroma_gain = 0x80,
324 .chroma_ctrl2 = 0x00,
325 .vgate_misc = 0x1c,
326
327 },{
328 .name = "PAL-M",
329 .id = V4L2_STD_PAL_M,
330 NORM_525_60,
331
332 .sync_control = 0x59,
333 .luma_control = 0x40,
334 .chroma_ctrl1 = 0xb9,
335 .chroma_gain = 0x2a,
336 .chroma_ctrl2 = 0x0e,
337 .vgate_misc = 0x18,
338
339 },{
340 .name = "PAL-Nc",
341 .id = V4L2_STD_PAL_Nc,
342 NORM_625_50,
343
344 .sync_control = 0x18,
345 .luma_control = 0x40,
346 .chroma_ctrl1 = 0xa1,
347 .chroma_gain = 0x2a,
348 .chroma_ctrl2 = 0x06,
349 .vgate_misc = 0x1c,
350
351 },{
352 .name = "PAL-60",
353 .id = V4L2_STD_PAL_60,
354
355 .h_start = 0,
356 .h_stop = 719,
357 .video_v_start = 23,
358 .video_v_stop = 262,
359 .vbi_v_start_0 = 10,
360 .vbi_v_stop_0 = 21,
361 .vbi_v_start_1 = 273,
362 .src_timing = 7,
363
364 .sync_control = 0x18,
365 .luma_control = 0x40,
366 .chroma_ctrl1 = 0x81,
367 .chroma_gain = 0x2a,
368 .chroma_ctrl2 = 0x06,
369 .vgate_misc = 0x1c,
370 }
371 };
372 #define TVNORMS ARRAY_SIZE(tvnorms)
373
format_by_fourcc(unsigned int fourcc)374 static struct saa7134_format* format_by_fourcc(unsigned int fourcc)
375 {
376 unsigned int i;
377
378 for (i = 0; i < FORMATS; i++)
379 if (formats[i].fourcc == fourcc)
380 return formats+i;
381 return NULL;
382 }
383
384 /* ------------------------------------------------------------------ */
385
set_tvnorm(struct saa7134_dev * dev,struct saa7134_tvnorm * norm)386 static void set_tvnorm(struct saa7134_dev *dev, struct saa7134_tvnorm *norm)
387 {
388 dprintk("set tv norm = %s\n",norm->name);
389 dev->tvnorm = norm;
390
391 /* setup cropping */
392 dev->crop_bounds.left = norm->h_start;
393 dev->crop_defrect.left = norm->h_start;
394 dev->crop_bounds.width = norm->h_stop - norm->h_start +1;
395 dev->crop_defrect.width = norm->h_stop - norm->h_start +1;
396
397 dev->crop_bounds.top = (norm->vbi_v_stop_0+1)*2;
398 dev->crop_defrect.top = norm->video_v_start*2;
399 dev->crop_bounds.height = ((norm->id & V4L2_STD_525_60) ? 524 : 624)
400 - dev->crop_bounds.top;
401 dev->crop_defrect.height = (norm->video_v_stop - norm->video_v_start +1)*2;
402
403 dev->crop_current = dev->crop_defrect;
404
405 saa7134_set_tvnorm_hw(dev);
406 }
407
video_mux(struct saa7134_dev * dev,int input)408 static void video_mux(struct saa7134_dev *dev, int input)
409 {
410 dprintk("video input = %d [%s]\n", input, card_in(dev, input).name);
411 dev->ctl_input = input;
412 set_tvnorm(dev, dev->tvnorm);
413 saa7134_tvaudio_setinput(dev, &card_in(dev, input));
414 }
415
416
saa7134_set_decoder(struct saa7134_dev * dev)417 static void saa7134_set_decoder(struct saa7134_dev *dev)
418 {
419 int luma_control, sync_control, chroma_ctrl1, mux;
420
421 struct saa7134_tvnorm *norm = dev->tvnorm;
422 mux = card_in(dev, dev->ctl_input).vmux;
423
424 luma_control = norm->luma_control;
425 sync_control = norm->sync_control;
426 chroma_ctrl1 = norm->chroma_ctrl1;
427
428 if (mux > 5)
429 luma_control |= 0x80; /* svideo */
430 if (noninterlaced || dev->nosignal)
431 sync_control |= 0x20;
432
433 /* switch on auto standard detection */
434 sync_control |= SAA7134_SYNC_CTRL_AUFD;
435 chroma_ctrl1 |= SAA7134_CHROMA_CTRL1_AUTO0;
436 chroma_ctrl1 &= ~SAA7134_CHROMA_CTRL1_FCTC;
437 luma_control &= ~SAA7134_LUMA_CTRL_LDEL;
438
439 /* setup video decoder */
440 saa_writeb(SAA7134_INCR_DELAY, 0x08);
441 saa_writeb(SAA7134_ANALOG_IN_CTRL1, 0xc0 | mux);
442 saa_writeb(SAA7134_ANALOG_IN_CTRL2, 0x00);
443
444 saa_writeb(SAA7134_ANALOG_IN_CTRL3, 0x90);
445 saa_writeb(SAA7134_ANALOG_IN_CTRL4, 0x90);
446 saa_writeb(SAA7134_HSYNC_START, 0xeb);
447 saa_writeb(SAA7134_HSYNC_STOP, 0xe0);
448 saa_writeb(SAA7134_SOURCE_TIMING1, norm->src_timing);
449
450 saa_writeb(SAA7134_SYNC_CTRL, sync_control);
451 saa_writeb(SAA7134_LUMA_CTRL, luma_control);
452 saa_writeb(SAA7134_DEC_LUMA_BRIGHT, dev->ctl_bright);
453
454 saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
455 dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
456
457 saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
458 dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
459
460 saa_writeb(SAA7134_DEC_CHROMA_HUE, dev->ctl_hue);
461 saa_writeb(SAA7134_CHROMA_CTRL1, chroma_ctrl1);
462 saa_writeb(SAA7134_CHROMA_GAIN, norm->chroma_gain);
463
464 saa_writeb(SAA7134_CHROMA_CTRL2, norm->chroma_ctrl2);
465 saa_writeb(SAA7134_MODE_DELAY_CTRL, 0x00);
466
467 saa_writeb(SAA7134_ANALOG_ADC, 0x01);
468 saa_writeb(SAA7134_VGATE_START, 0x11);
469 saa_writeb(SAA7134_VGATE_STOP, 0xfe);
470 saa_writeb(SAA7134_MISC_VGATE_MSB, norm->vgate_misc);
471 saa_writeb(SAA7134_RAW_DATA_GAIN, 0x40);
472 saa_writeb(SAA7134_RAW_DATA_OFFSET, 0x80);
473 }
474
saa7134_set_tvnorm_hw(struct saa7134_dev * dev)475 void saa7134_set_tvnorm_hw(struct saa7134_dev *dev)
476 {
477 saa7134_set_decoder(dev);
478
479 if (card_in(dev, dev->ctl_input).tv)
480 saa_call_all(dev, video, s_std, dev->tvnorm->id);
481 /* Set the correct norm for the saa6752hs. This function
482 does nothing if there is no saa6752hs. */
483 saa_call_empress(dev, video, s_std, dev->tvnorm->id);
484 }
485
set_h_prescale(struct saa7134_dev * dev,int task,int prescale)486 static void set_h_prescale(struct saa7134_dev *dev, int task, int prescale)
487 {
488 static const struct {
489 int xpsc;
490 int xacl;
491 int xc2_1;
492 int xdcg;
493 int vpfy;
494 } vals[] = {
495 /* XPSC XACL XC2_1 XDCG VPFY */
496 { 1, 0, 0, 0, 0 },
497 { 2, 2, 1, 2, 2 },
498 { 3, 4, 1, 3, 2 },
499 { 4, 8, 1, 4, 2 },
500 { 5, 8, 1, 4, 2 },
501 { 6, 8, 1, 4, 3 },
502 { 7, 8, 1, 4, 3 },
503 { 8, 15, 0, 4, 3 },
504 { 9, 15, 0, 4, 3 },
505 { 10, 16, 1, 5, 3 },
506 };
507 static const int count = ARRAY_SIZE(vals);
508 int i;
509
510 for (i = 0; i < count; i++)
511 if (vals[i].xpsc == prescale)
512 break;
513 if (i == count)
514 return;
515
516 saa_writeb(SAA7134_H_PRESCALE(task), vals[i].xpsc);
517 saa_writeb(SAA7134_ACC_LENGTH(task), vals[i].xacl);
518 saa_writeb(SAA7134_LEVEL_CTRL(task),
519 (vals[i].xc2_1 << 3) | (vals[i].xdcg));
520 saa_andorb(SAA7134_FIR_PREFILTER_CTRL(task), 0x0f,
521 (vals[i].vpfy << 2) | vals[i].vpfy);
522 }
523
set_v_scale(struct saa7134_dev * dev,int task,int yscale)524 static void set_v_scale(struct saa7134_dev *dev, int task, int yscale)
525 {
526 int val,mirror;
527
528 saa_writeb(SAA7134_V_SCALE_RATIO1(task), yscale & 0xff);
529 saa_writeb(SAA7134_V_SCALE_RATIO2(task), yscale >> 8);
530
531 mirror = (dev->ctl_mirror) ? 0x02 : 0x00;
532 if (yscale < 2048) {
533 /* LPI */
534 dprintk("yscale LPI yscale=%d\n",yscale);
535 saa_writeb(SAA7134_V_FILTER(task), 0x00 | mirror);
536 saa_writeb(SAA7134_LUMA_CONTRAST(task), 0x40);
537 saa_writeb(SAA7134_CHROMA_SATURATION(task), 0x40);
538 } else {
539 /* ACM */
540 val = 0x40 * 1024 / yscale;
541 dprintk("yscale ACM yscale=%d val=0x%x\n",yscale,val);
542 saa_writeb(SAA7134_V_FILTER(task), 0x01 | mirror);
543 saa_writeb(SAA7134_LUMA_CONTRAST(task), val);
544 saa_writeb(SAA7134_CHROMA_SATURATION(task), val);
545 }
546 saa_writeb(SAA7134_LUMA_BRIGHT(task), 0x80);
547 }
548
set_size(struct saa7134_dev * dev,int task,int width,int height,int interlace)549 static void set_size(struct saa7134_dev *dev, int task,
550 int width, int height, int interlace)
551 {
552 int prescale,xscale,yscale,y_even,y_odd;
553 int h_start, h_stop, v_start, v_stop;
554 int div = interlace ? 2 : 1;
555
556 /* setup video scaler */
557 h_start = dev->crop_current.left;
558 v_start = dev->crop_current.top/2;
559 h_stop = (dev->crop_current.left + dev->crop_current.width -1);
560 v_stop = (dev->crop_current.top + dev->crop_current.height -1)/2;
561
562 saa_writeb(SAA7134_VIDEO_H_START1(task), h_start & 0xff);
563 saa_writeb(SAA7134_VIDEO_H_START2(task), h_start >> 8);
564 saa_writeb(SAA7134_VIDEO_H_STOP1(task), h_stop & 0xff);
565 saa_writeb(SAA7134_VIDEO_H_STOP2(task), h_stop >> 8);
566 saa_writeb(SAA7134_VIDEO_V_START1(task), v_start & 0xff);
567 saa_writeb(SAA7134_VIDEO_V_START2(task), v_start >> 8);
568 saa_writeb(SAA7134_VIDEO_V_STOP1(task), v_stop & 0xff);
569 saa_writeb(SAA7134_VIDEO_V_STOP2(task), v_stop >> 8);
570
571 prescale = dev->crop_current.width / width;
572 if (0 == prescale)
573 prescale = 1;
574 xscale = 1024 * dev->crop_current.width / prescale / width;
575 yscale = 512 * div * dev->crop_current.height / height;
576 dprintk("prescale=%d xscale=%d yscale=%d\n",prescale,xscale,yscale);
577 set_h_prescale(dev,task,prescale);
578 saa_writeb(SAA7134_H_SCALE_INC1(task), xscale & 0xff);
579 saa_writeb(SAA7134_H_SCALE_INC2(task), xscale >> 8);
580 set_v_scale(dev,task,yscale);
581
582 saa_writeb(SAA7134_VIDEO_PIXELS1(task), width & 0xff);
583 saa_writeb(SAA7134_VIDEO_PIXELS2(task), width >> 8);
584 saa_writeb(SAA7134_VIDEO_LINES1(task), height/div & 0xff);
585 saa_writeb(SAA7134_VIDEO_LINES2(task), height/div >> 8);
586
587 /* deinterlace y offsets */
588 y_odd = dev->ctl_y_odd;
589 y_even = dev->ctl_y_even;
590 saa_writeb(SAA7134_V_PHASE_OFFSET0(task), y_odd);
591 saa_writeb(SAA7134_V_PHASE_OFFSET1(task), y_even);
592 saa_writeb(SAA7134_V_PHASE_OFFSET2(task), y_odd);
593 saa_writeb(SAA7134_V_PHASE_OFFSET3(task), y_even);
594 }
595
596 /* ------------------------------------------------------------------ */
597
598 struct cliplist {
599 __u16 position;
600 __u8 enable;
601 __u8 disable;
602 };
603
set_cliplist(struct saa7134_dev * dev,int reg,struct cliplist * cl,int entries,char * name)604 static void set_cliplist(struct saa7134_dev *dev, int reg,
605 struct cliplist *cl, int entries, char *name)
606 {
607 __u8 winbits = 0;
608 int i;
609
610 for (i = 0; i < entries; i++) {
611 winbits |= cl[i].enable;
612 winbits &= ~cl[i].disable;
613 if (i < 15 && cl[i].position == cl[i+1].position)
614 continue;
615 saa_writeb(reg + 0, winbits);
616 saa_writeb(reg + 2, cl[i].position & 0xff);
617 saa_writeb(reg + 3, cl[i].position >> 8);
618 dprintk("clip: %s winbits=%02x pos=%d\n",
619 name,winbits,cl[i].position);
620 reg += 8;
621 }
622 for (; reg < 0x400; reg += 8) {
623 saa_writeb(reg+ 0, 0);
624 saa_writeb(reg + 1, 0);
625 saa_writeb(reg + 2, 0);
626 saa_writeb(reg + 3, 0);
627 }
628 }
629
clip_range(int val)630 static int clip_range(int val)
631 {
632 if (val < 0)
633 val = 0;
634 return val;
635 }
636
637 /* Sort into smallest position first order */
cliplist_cmp(const void * a,const void * b)638 static int cliplist_cmp(const void *a, const void *b)
639 {
640 const struct cliplist *cla = a;
641 const struct cliplist *clb = b;
642 if (cla->position < clb->position)
643 return -1;
644 if (cla->position > clb->position)
645 return 1;
646 return 0;
647 }
648
setup_clipping(struct saa7134_dev * dev,struct v4l2_clip * clips,int nclips,int interlace)649 static int setup_clipping(struct saa7134_dev *dev, struct v4l2_clip *clips,
650 int nclips, int interlace)
651 {
652 struct cliplist col[16], row[16];
653 int cols = 0, rows = 0, i;
654 int div = interlace ? 2 : 1;
655
656 memset(col, 0, sizeof(col));
657 memset(row, 0, sizeof(row));
658 for (i = 0; i < nclips && i < 8; i++) {
659 col[cols].position = clip_range(clips[i].c.left);
660 col[cols].enable = (1 << i);
661 cols++;
662 col[cols].position = clip_range(clips[i].c.left+clips[i].c.width);
663 col[cols].disable = (1 << i);
664 cols++;
665 row[rows].position = clip_range(clips[i].c.top / div);
666 row[rows].enable = (1 << i);
667 rows++;
668 row[rows].position = clip_range((clips[i].c.top + clips[i].c.height)
669 / div);
670 row[rows].disable = (1 << i);
671 rows++;
672 }
673 sort(col, cols, sizeof col[0], cliplist_cmp, NULL);
674 sort(row, rows, sizeof row[0], cliplist_cmp, NULL);
675 set_cliplist(dev,0x380,col,cols,"cols");
676 set_cliplist(dev,0x384,row,rows,"rows");
677 return 0;
678 }
679
verify_preview(struct saa7134_dev * dev,struct v4l2_window * win,bool try)680 static int verify_preview(struct saa7134_dev *dev, struct v4l2_window *win, bool try)
681 {
682 enum v4l2_field field;
683 int maxw, maxh;
684
685 if (!try && (dev->ovbuf.base == NULL || dev->ovfmt == NULL))
686 return -EINVAL;
687 if (win->w.width < 48)
688 win->w.width = 48;
689 if (win->w.height < 32)
690 win->w.height = 32;
691 if (win->clipcount > 8)
692 win->clipcount = 8;
693
694 win->chromakey = 0;
695 win->global_alpha = 0;
696 field = win->field;
697 maxw = dev->crop_current.width;
698 maxh = dev->crop_current.height;
699
700 if (V4L2_FIELD_ANY == field) {
701 field = (win->w.height > maxh/2)
702 ? V4L2_FIELD_INTERLACED
703 : V4L2_FIELD_TOP;
704 }
705 switch (field) {
706 case V4L2_FIELD_TOP:
707 case V4L2_FIELD_BOTTOM:
708 maxh = maxh / 2;
709 break;
710 default:
711 field = V4L2_FIELD_INTERLACED;
712 break;
713 }
714
715 win->field = field;
716 if (win->w.width > maxw)
717 win->w.width = maxw;
718 if (win->w.height > maxh)
719 win->w.height = maxh;
720 return 0;
721 }
722
start_preview(struct saa7134_dev * dev)723 static int start_preview(struct saa7134_dev *dev)
724 {
725 unsigned long base,control,bpl;
726 int err;
727
728 err = verify_preview(dev, &dev->win, false);
729 if (0 != err)
730 return err;
731
732 dev->ovfield = dev->win.field;
733 dprintk("start_preview %dx%d+%d+%d %s field=%s\n",
734 dev->win.w.width, dev->win.w.height,
735 dev->win.w.left, dev->win.w.top,
736 dev->ovfmt->name, v4l2_field_names[dev->ovfield]);
737
738 /* setup window + clipping */
739 set_size(dev, TASK_B, dev->win.w.width, dev->win.w.height,
740 V4L2_FIELD_HAS_BOTH(dev->ovfield));
741 setup_clipping(dev, dev->clips, dev->nclips,
742 V4L2_FIELD_HAS_BOTH(dev->ovfield));
743 if (dev->ovfmt->yuv)
744 saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x03);
745 else
746 saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x01);
747 saa_writeb(SAA7134_OFMT_VIDEO_B, dev->ovfmt->pm | 0x20);
748
749 /* dma: setup channel 1 (= Video Task B) */
750 base = (unsigned long)dev->ovbuf.base;
751 base += dev->ovbuf.fmt.bytesperline * dev->win.w.top;
752 base += dev->ovfmt->depth/8 * dev->win.w.left;
753 bpl = dev->ovbuf.fmt.bytesperline;
754 control = SAA7134_RS_CONTROL_BURST_16;
755 if (dev->ovfmt->bswap)
756 control |= SAA7134_RS_CONTROL_BSWAP;
757 if (dev->ovfmt->wswap)
758 control |= SAA7134_RS_CONTROL_WSWAP;
759 if (V4L2_FIELD_HAS_BOTH(dev->ovfield)) {
760 saa_writel(SAA7134_RS_BA1(1),base);
761 saa_writel(SAA7134_RS_BA2(1),base+bpl);
762 saa_writel(SAA7134_RS_PITCH(1),bpl*2);
763 saa_writel(SAA7134_RS_CONTROL(1),control);
764 } else {
765 saa_writel(SAA7134_RS_BA1(1),base);
766 saa_writel(SAA7134_RS_BA2(1),base);
767 saa_writel(SAA7134_RS_PITCH(1),bpl);
768 saa_writel(SAA7134_RS_CONTROL(1),control);
769 }
770
771 /* start dma */
772 dev->ovenable = 1;
773 saa7134_set_dmabits(dev);
774
775 return 0;
776 }
777
stop_preview(struct saa7134_dev * dev)778 static int stop_preview(struct saa7134_dev *dev)
779 {
780 dev->ovenable = 0;
781 saa7134_set_dmabits(dev);
782 return 0;
783 }
784
785 /* ------------------------------------------------------------------ */
786
buffer_activate(struct saa7134_dev * dev,struct saa7134_buf * buf,struct saa7134_buf * next)787 static int buffer_activate(struct saa7134_dev *dev,
788 struct saa7134_buf *buf,
789 struct saa7134_buf *next)
790 {
791 struct saa7134_dmaqueue *dmaq = buf->vb2.vb2_queue->drv_priv;
792 unsigned long base,control,bpl;
793 unsigned long bpl_uv,lines_uv,base2,base3,tmp; /* planar */
794
795 dprintk("buffer_activate buf=%p\n",buf);
796 buf->top_seen = 0;
797
798 set_size(dev, TASK_A, dev->width, dev->height,
799 V4L2_FIELD_HAS_BOTH(dev->field));
800 if (dev->fmt->yuv)
801 saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x03);
802 else
803 saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x01);
804 saa_writeb(SAA7134_OFMT_VIDEO_A, dev->fmt->pm);
805
806 /* DMA: setup channel 0 (= Video Task A0) */
807 base = saa7134_buffer_base(buf);
808 if (dev->fmt->planar)
809 bpl = dev->width;
810 else
811 bpl = (dev->width * dev->fmt->depth) / 8;
812 control = SAA7134_RS_CONTROL_BURST_16 |
813 SAA7134_RS_CONTROL_ME |
814 (dmaq->pt.dma >> 12);
815 if (dev->fmt->bswap)
816 control |= SAA7134_RS_CONTROL_BSWAP;
817 if (dev->fmt->wswap)
818 control |= SAA7134_RS_CONTROL_WSWAP;
819 if (V4L2_FIELD_HAS_BOTH(dev->field)) {
820 /* interlaced */
821 saa_writel(SAA7134_RS_BA1(0),base);
822 saa_writel(SAA7134_RS_BA2(0),base+bpl);
823 saa_writel(SAA7134_RS_PITCH(0),bpl*2);
824 } else {
825 /* non-interlaced */
826 saa_writel(SAA7134_RS_BA1(0),base);
827 saa_writel(SAA7134_RS_BA2(0),base);
828 saa_writel(SAA7134_RS_PITCH(0),bpl);
829 }
830 saa_writel(SAA7134_RS_CONTROL(0),control);
831
832 if (dev->fmt->planar) {
833 /* DMA: setup channel 4+5 (= planar task A) */
834 bpl_uv = bpl >> dev->fmt->hshift;
835 lines_uv = dev->height >> dev->fmt->vshift;
836 base2 = base + bpl * dev->height;
837 base3 = base2 + bpl_uv * lines_uv;
838 if (dev->fmt->uvswap)
839 tmp = base2, base2 = base3, base3 = tmp;
840 dprintk("uv: bpl=%ld lines=%ld base2/3=%ld/%ld\n",
841 bpl_uv,lines_uv,base2,base3);
842 if (V4L2_FIELD_HAS_BOTH(dev->field)) {
843 /* interlaced */
844 saa_writel(SAA7134_RS_BA1(4),base2);
845 saa_writel(SAA7134_RS_BA2(4),base2+bpl_uv);
846 saa_writel(SAA7134_RS_PITCH(4),bpl_uv*2);
847 saa_writel(SAA7134_RS_BA1(5),base3);
848 saa_writel(SAA7134_RS_BA2(5),base3+bpl_uv);
849 saa_writel(SAA7134_RS_PITCH(5),bpl_uv*2);
850 } else {
851 /* non-interlaced */
852 saa_writel(SAA7134_RS_BA1(4),base2);
853 saa_writel(SAA7134_RS_BA2(4),base2);
854 saa_writel(SAA7134_RS_PITCH(4),bpl_uv);
855 saa_writel(SAA7134_RS_BA1(5),base3);
856 saa_writel(SAA7134_RS_BA2(5),base3);
857 saa_writel(SAA7134_RS_PITCH(5),bpl_uv);
858 }
859 saa_writel(SAA7134_RS_CONTROL(4),control);
860 saa_writel(SAA7134_RS_CONTROL(5),control);
861 }
862
863 /* start DMA */
864 saa7134_set_dmabits(dev);
865 mod_timer(&dmaq->timeout, jiffies + BUFFER_TIMEOUT);
866 return 0;
867 }
868
buffer_init(struct vb2_buffer * vb2)869 static int buffer_init(struct vb2_buffer *vb2)
870 {
871 struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv;
872 struct saa7134_buf *buf = container_of(vb2, struct saa7134_buf, vb2);
873
874 dmaq->curr = NULL;
875 buf->activate = buffer_activate;
876 return 0;
877 }
878
buffer_prepare(struct vb2_buffer * vb2)879 static int buffer_prepare(struct vb2_buffer *vb2)
880 {
881 struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv;
882 struct saa7134_dev *dev = dmaq->dev;
883 struct saa7134_buf *buf = container_of(vb2, struct saa7134_buf, vb2);
884 struct sg_table *dma = vb2_dma_sg_plane_desc(&buf->vb2, 0);
885 unsigned int size;
886
887 if (dma->sgl->offset) {
888 pr_err("The buffer is not page-aligned\n");
889 return -EINVAL;
890 }
891 size = (dev->width * dev->height * dev->fmt->depth) >> 3;
892 if (vb2_plane_size(vb2, 0) < size)
893 return -EINVAL;
894
895 vb2_set_plane_payload(vb2, 0, size);
896 vb2->v4l2_buf.field = dev->field;
897
898 return saa7134_pgtable_build(dev->pci, &dmaq->pt, dma->sgl, dma->nents,
899 saa7134_buffer_startpage(buf));
900 }
901
queue_setup(struct vb2_queue * q,const struct v4l2_format * fmt,unsigned int * nbuffers,unsigned int * nplanes,unsigned int sizes[],void * alloc_ctxs[])902 static int queue_setup(struct vb2_queue *q, const struct v4l2_format *fmt,
903 unsigned int *nbuffers, unsigned int *nplanes,
904 unsigned int sizes[], void *alloc_ctxs[])
905 {
906 struct saa7134_dmaqueue *dmaq = q->drv_priv;
907 struct saa7134_dev *dev = dmaq->dev;
908 int size = dev->fmt->depth * dev->width * dev->height >> 3;
909
910 if (dev->width < 48 ||
911 dev->height < 32 ||
912 dev->width/4 > dev->crop_current.width ||
913 dev->height/4 > dev->crop_current.height ||
914 dev->width > dev->crop_bounds.width ||
915 dev->height > dev->crop_bounds.height)
916 return -EINVAL;
917
918 *nbuffers = saa7134_buffer_count(size, *nbuffers);
919 *nplanes = 1;
920 sizes[0] = size;
921 alloc_ctxs[0] = dev->alloc_ctx;
922 return 0;
923 }
924
925 /*
926 * move buffer to hardware queue
927 */
saa7134_vb2_buffer_queue(struct vb2_buffer * vb)928 void saa7134_vb2_buffer_queue(struct vb2_buffer *vb)
929 {
930 struct saa7134_dmaqueue *dmaq = vb->vb2_queue->drv_priv;
931 struct saa7134_dev *dev = dmaq->dev;
932 struct saa7134_buf *buf = container_of(vb, struct saa7134_buf, vb2);
933
934 saa7134_buffer_queue(dev, dmaq, buf);
935 }
936 EXPORT_SYMBOL_GPL(saa7134_vb2_buffer_queue);
937
saa7134_vb2_start_streaming(struct vb2_queue * vq,unsigned int count)938 int saa7134_vb2_start_streaming(struct vb2_queue *vq, unsigned int count)
939 {
940 struct saa7134_dmaqueue *dmaq = vq->drv_priv;
941 struct saa7134_dev *dev = dmaq->dev;
942
943 /*
944 * Planar video capture and TS share the same DMA channel,
945 * so only one can be active at a time.
946 */
947 if (card_is_empress(dev) && vb2_is_busy(&dev->empress_vbq) &&
948 dmaq == &dev->video_q && dev->fmt->planar) {
949 struct saa7134_buf *buf, *tmp;
950
951 list_for_each_entry_safe(buf, tmp, &dmaq->queue, entry) {
952 list_del(&buf->entry);
953 vb2_buffer_done(&buf->vb2, VB2_BUF_STATE_QUEUED);
954 }
955 if (dmaq->curr) {
956 vb2_buffer_done(&dmaq->curr->vb2, VB2_BUF_STATE_QUEUED);
957 dmaq->curr = NULL;
958 }
959 return -EBUSY;
960 }
961
962 /* The SAA7134 has a 1K FIFO; the datasheet suggests that when
963 * configured conservatively, there's 22 usec of buffering for video.
964 * We therefore request a DMA latency of 20 usec, giving us 2 usec of
965 * margin in case the FIFO is configured differently to the datasheet.
966 * Unfortunately, I lack register-level documentation to check the
967 * Linux FIFO setup and confirm the perfect value.
968 */
969 if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
970 (dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
971 pm_qos_add_request(&dev->qos_request,
972 PM_QOS_CPU_DMA_LATENCY, 20);
973 dmaq->seq_nr = 0;
974
975 return 0;
976 }
977
saa7134_vb2_stop_streaming(struct vb2_queue * vq)978 void saa7134_vb2_stop_streaming(struct vb2_queue *vq)
979 {
980 struct saa7134_dmaqueue *dmaq = vq->drv_priv;
981 struct saa7134_dev *dev = dmaq->dev;
982
983 saa7134_stop_streaming(dev, dmaq);
984
985 if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
986 (dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
987 pm_qos_remove_request(&dev->qos_request);
988 }
989
990 static struct vb2_ops vb2_qops = {
991 .queue_setup = queue_setup,
992 .buf_init = buffer_init,
993 .buf_prepare = buffer_prepare,
994 .buf_queue = saa7134_vb2_buffer_queue,
995 .wait_prepare = vb2_ops_wait_prepare,
996 .wait_finish = vb2_ops_wait_finish,
997 .start_streaming = saa7134_vb2_start_streaming,
998 .stop_streaming = saa7134_vb2_stop_streaming,
999 };
1000
1001 /* ------------------------------------------------------------------ */
1002
saa7134_s_ctrl(struct v4l2_ctrl * ctrl)1003 static int saa7134_s_ctrl(struct v4l2_ctrl *ctrl)
1004 {
1005 struct saa7134_dev *dev = container_of(ctrl->handler, struct saa7134_dev, ctrl_handler);
1006 unsigned long flags;
1007 int restart_overlay = 0;
1008
1009 switch (ctrl->id) {
1010 case V4L2_CID_BRIGHTNESS:
1011 dev->ctl_bright = ctrl->val;
1012 saa_writeb(SAA7134_DEC_LUMA_BRIGHT, ctrl->val);
1013 break;
1014 case V4L2_CID_HUE:
1015 dev->ctl_hue = ctrl->val;
1016 saa_writeb(SAA7134_DEC_CHROMA_HUE, ctrl->val);
1017 break;
1018 case V4L2_CID_CONTRAST:
1019 dev->ctl_contrast = ctrl->val;
1020 saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
1021 dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
1022 break;
1023 case V4L2_CID_SATURATION:
1024 dev->ctl_saturation = ctrl->val;
1025 saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
1026 dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
1027 break;
1028 case V4L2_CID_AUDIO_MUTE:
1029 dev->ctl_mute = ctrl->val;
1030 saa7134_tvaudio_setmute(dev);
1031 break;
1032 case V4L2_CID_AUDIO_VOLUME:
1033 dev->ctl_volume = ctrl->val;
1034 saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
1035 break;
1036 case V4L2_CID_PRIVATE_INVERT:
1037 dev->ctl_invert = ctrl->val;
1038 saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
1039 dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
1040 saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
1041 dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
1042 break;
1043 case V4L2_CID_HFLIP:
1044 dev->ctl_mirror = ctrl->val;
1045 restart_overlay = 1;
1046 break;
1047 case V4L2_CID_PRIVATE_Y_EVEN:
1048 dev->ctl_y_even = ctrl->val;
1049 restart_overlay = 1;
1050 break;
1051 case V4L2_CID_PRIVATE_Y_ODD:
1052 dev->ctl_y_odd = ctrl->val;
1053 restart_overlay = 1;
1054 break;
1055 case V4L2_CID_PRIVATE_AUTOMUTE:
1056 {
1057 struct v4l2_priv_tun_config tda9887_cfg;
1058
1059 tda9887_cfg.tuner = TUNER_TDA9887;
1060 tda9887_cfg.priv = &dev->tda9887_conf;
1061
1062 dev->ctl_automute = ctrl->val;
1063 if (dev->tda9887_conf) {
1064 if (dev->ctl_automute)
1065 dev->tda9887_conf |= TDA9887_AUTOMUTE;
1066 else
1067 dev->tda9887_conf &= ~TDA9887_AUTOMUTE;
1068
1069 saa_call_all(dev, tuner, s_config, &tda9887_cfg);
1070 }
1071 break;
1072 }
1073 default:
1074 return -EINVAL;
1075 }
1076 if (restart_overlay && dev->overlay_owner) {
1077 spin_lock_irqsave(&dev->slock, flags);
1078 stop_preview(dev);
1079 start_preview(dev);
1080 spin_unlock_irqrestore(&dev->slock, flags);
1081 }
1082 return 0;
1083 }
1084
1085 /* ------------------------------------------------------------------ */
1086
video_open(struct file * file)1087 static int video_open(struct file *file)
1088 {
1089 struct video_device *vdev = video_devdata(file);
1090 struct saa7134_dev *dev = video_drvdata(file);
1091 int ret = v4l2_fh_open(file);
1092
1093 if (ret < 0)
1094 return ret;
1095
1096 mutex_lock(&dev->lock);
1097 if (vdev->vfl_type == VFL_TYPE_RADIO) {
1098 /* switch to radio mode */
1099 saa7134_tvaudio_setinput(dev, &card(dev).radio);
1100 saa_call_all(dev, tuner, s_radio);
1101 } else {
1102 /* switch to video/vbi mode */
1103 video_mux(dev, dev->ctl_input);
1104 }
1105 mutex_unlock(&dev->lock);
1106
1107 return 0;
1108 }
1109
video_release(struct file * file)1110 static int video_release(struct file *file)
1111 {
1112 struct video_device *vdev = video_devdata(file);
1113 struct saa7134_dev *dev = video_drvdata(file);
1114 struct v4l2_fh *fh = file->private_data;
1115 struct saa6588_command cmd;
1116 unsigned long flags;
1117
1118 mutex_lock(&dev->lock);
1119 saa7134_tvaudio_close(dev);
1120
1121 /* turn off overlay */
1122 if (fh == dev->overlay_owner) {
1123 spin_lock_irqsave(&dev->slock,flags);
1124 stop_preview(dev);
1125 spin_unlock_irqrestore(&dev->slock,flags);
1126 dev->overlay_owner = NULL;
1127 }
1128
1129 if (vdev->vfl_type == VFL_TYPE_RADIO)
1130 v4l2_fh_release(file);
1131 else
1132 _vb2_fop_release(file, NULL);
1133
1134 /* ts-capture will not work in planar mode, so turn it off Hac: 04.05*/
1135 saa_andorb(SAA7134_OFMT_VIDEO_A, 0x1f, 0);
1136 saa_andorb(SAA7134_OFMT_VIDEO_B, 0x1f, 0);
1137 saa_andorb(SAA7134_OFMT_DATA_A, 0x1f, 0);
1138 saa_andorb(SAA7134_OFMT_DATA_B, 0x1f, 0);
1139
1140 saa_call_all(dev, core, s_power, 0);
1141 if (vdev->vfl_type == VFL_TYPE_RADIO)
1142 saa_call_all(dev, core, ioctl, SAA6588_CMD_CLOSE, &cmd);
1143 mutex_unlock(&dev->lock);
1144
1145 return 0;
1146 }
1147
radio_read(struct file * file,char __user * data,size_t count,loff_t * ppos)1148 static ssize_t radio_read(struct file *file, char __user *data,
1149 size_t count, loff_t *ppos)
1150 {
1151 struct saa7134_dev *dev = video_drvdata(file);
1152 struct saa6588_command cmd;
1153
1154 cmd.block_count = count/3;
1155 cmd.nonblocking = file->f_flags & O_NONBLOCK;
1156 cmd.buffer = data;
1157 cmd.instance = file;
1158 cmd.result = -ENODEV;
1159
1160 mutex_lock(&dev->lock);
1161 saa_call_all(dev, core, ioctl, SAA6588_CMD_READ, &cmd);
1162 mutex_unlock(&dev->lock);
1163
1164 return cmd.result;
1165 }
1166
radio_poll(struct file * file,poll_table * wait)1167 static unsigned int radio_poll(struct file *file, poll_table *wait)
1168 {
1169 struct saa7134_dev *dev = video_drvdata(file);
1170 struct saa6588_command cmd;
1171 unsigned int rc = v4l2_ctrl_poll(file, wait);
1172
1173 cmd.instance = file;
1174 cmd.event_list = wait;
1175 cmd.result = 0;
1176 mutex_lock(&dev->lock);
1177 saa_call_all(dev, core, ioctl, SAA6588_CMD_POLL, &cmd);
1178 mutex_unlock(&dev->lock);
1179
1180 return rc | cmd.result;
1181 }
1182
1183 /* ------------------------------------------------------------------ */
1184
saa7134_try_get_set_fmt_vbi_cap(struct file * file,void * priv,struct v4l2_format * f)1185 static int saa7134_try_get_set_fmt_vbi_cap(struct file *file, void *priv,
1186 struct v4l2_format *f)
1187 {
1188 struct saa7134_dev *dev = video_drvdata(file);
1189 struct saa7134_tvnorm *norm = dev->tvnorm;
1190
1191 memset(&f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1192 f->fmt.vbi.sampling_rate = 6750000 * 4;
1193 f->fmt.vbi.samples_per_line = 2048 /* VBI_LINE_LENGTH */;
1194 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1195 f->fmt.vbi.offset = 64 * 4;
1196 f->fmt.vbi.start[0] = norm->vbi_v_start_0;
1197 f->fmt.vbi.count[0] = norm->vbi_v_stop_0 - norm->vbi_v_start_0 +1;
1198 f->fmt.vbi.start[1] = norm->vbi_v_start_1;
1199 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1200 f->fmt.vbi.flags = 0; /* VBI_UNSYNC VBI_INTERLACED */
1201
1202 return 0;
1203 }
1204
saa7134_g_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)1205 static int saa7134_g_fmt_vid_cap(struct file *file, void *priv,
1206 struct v4l2_format *f)
1207 {
1208 struct saa7134_dev *dev = video_drvdata(file);
1209
1210 f->fmt.pix.width = dev->width;
1211 f->fmt.pix.height = dev->height;
1212 f->fmt.pix.field = dev->field;
1213 f->fmt.pix.pixelformat = dev->fmt->fourcc;
1214 if (dev->fmt->planar)
1215 f->fmt.pix.bytesperline = f->fmt.pix.width;
1216 else
1217 f->fmt.pix.bytesperline =
1218 (f->fmt.pix.width * dev->fmt->depth) / 8;
1219 f->fmt.pix.sizeimage =
1220 (f->fmt.pix.height * f->fmt.pix.width * dev->fmt->depth) / 8;
1221 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1222 return 0;
1223 }
1224
saa7134_g_fmt_vid_overlay(struct file * file,void * priv,struct v4l2_format * f)1225 static int saa7134_g_fmt_vid_overlay(struct file *file, void *priv,
1226 struct v4l2_format *f)
1227 {
1228 struct saa7134_dev *dev = video_drvdata(file);
1229 struct v4l2_clip __user *clips = f->fmt.win.clips;
1230 u32 clipcount = f->fmt.win.clipcount;
1231 int err = 0;
1232 int i;
1233
1234 if (saa7134_no_overlay > 0) {
1235 printk(KERN_ERR "V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1236 return -EINVAL;
1237 }
1238 f->fmt.win = dev->win;
1239 f->fmt.win.clips = clips;
1240 if (clips == NULL)
1241 clipcount = 0;
1242 if (dev->nclips < clipcount)
1243 clipcount = dev->nclips;
1244 f->fmt.win.clipcount = clipcount;
1245
1246 for (i = 0; !err && i < clipcount; i++) {
1247 if (copy_to_user(&f->fmt.win.clips[i].c, &dev->clips[i].c,
1248 sizeof(struct v4l2_rect)))
1249 err = -EFAULT;
1250 }
1251
1252 return err;
1253 }
1254
saa7134_try_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)1255 static int saa7134_try_fmt_vid_cap(struct file *file, void *priv,
1256 struct v4l2_format *f)
1257 {
1258 struct saa7134_dev *dev = video_drvdata(file);
1259 struct saa7134_format *fmt;
1260 enum v4l2_field field;
1261 unsigned int maxw, maxh;
1262
1263 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1264 if (NULL == fmt)
1265 return -EINVAL;
1266
1267 field = f->fmt.pix.field;
1268 maxw = min(dev->crop_current.width*4, dev->crop_bounds.width);
1269 maxh = min(dev->crop_current.height*4, dev->crop_bounds.height);
1270
1271 if (V4L2_FIELD_ANY == field) {
1272 field = (f->fmt.pix.height > maxh/2)
1273 ? V4L2_FIELD_INTERLACED
1274 : V4L2_FIELD_BOTTOM;
1275 }
1276 switch (field) {
1277 case V4L2_FIELD_TOP:
1278 case V4L2_FIELD_BOTTOM:
1279 maxh = maxh / 2;
1280 break;
1281 default:
1282 field = V4L2_FIELD_INTERLACED;
1283 break;
1284 }
1285
1286 f->fmt.pix.field = field;
1287 if (f->fmt.pix.width < 48)
1288 f->fmt.pix.width = 48;
1289 if (f->fmt.pix.height < 32)
1290 f->fmt.pix.height = 32;
1291 if (f->fmt.pix.width > maxw)
1292 f->fmt.pix.width = maxw;
1293 if (f->fmt.pix.height > maxh)
1294 f->fmt.pix.height = maxh;
1295 f->fmt.pix.width &= ~0x03;
1296 if (fmt->planar)
1297 f->fmt.pix.bytesperline = f->fmt.pix.width;
1298 else
1299 f->fmt.pix.bytesperline =
1300 (f->fmt.pix.width * fmt->depth) / 8;
1301 f->fmt.pix.sizeimage =
1302 (f->fmt.pix.height * f->fmt.pix.width * fmt->depth) / 8;
1303 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1304
1305 return 0;
1306 }
1307
saa7134_try_fmt_vid_overlay(struct file * file,void * priv,struct v4l2_format * f)1308 static int saa7134_try_fmt_vid_overlay(struct file *file, void *priv,
1309 struct v4l2_format *f)
1310 {
1311 struct saa7134_dev *dev = video_drvdata(file);
1312
1313 if (saa7134_no_overlay > 0) {
1314 printk(KERN_ERR "V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1315 return -EINVAL;
1316 }
1317
1318 if (f->fmt.win.clips == NULL)
1319 f->fmt.win.clipcount = 0;
1320 return verify_preview(dev, &f->fmt.win, true);
1321 }
1322
saa7134_s_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)1323 static int saa7134_s_fmt_vid_cap(struct file *file, void *priv,
1324 struct v4l2_format *f)
1325 {
1326 struct saa7134_dev *dev = video_drvdata(file);
1327 int err;
1328
1329 err = saa7134_try_fmt_vid_cap(file, priv, f);
1330 if (0 != err)
1331 return err;
1332
1333 dev->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1334 dev->width = f->fmt.pix.width;
1335 dev->height = f->fmt.pix.height;
1336 dev->field = f->fmt.pix.field;
1337 return 0;
1338 }
1339
saa7134_s_fmt_vid_overlay(struct file * file,void * priv,struct v4l2_format * f)1340 static int saa7134_s_fmt_vid_overlay(struct file *file, void *priv,
1341 struct v4l2_format *f)
1342 {
1343 struct saa7134_dev *dev = video_drvdata(file);
1344 int err;
1345 unsigned long flags;
1346
1347 if (saa7134_no_overlay > 0) {
1348 printk(KERN_ERR "V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1349 return -EINVAL;
1350 }
1351 if (f->fmt.win.clips == NULL)
1352 f->fmt.win.clipcount = 0;
1353 err = verify_preview(dev, &f->fmt.win, true);
1354 if (0 != err)
1355 return err;
1356
1357 dev->win = f->fmt.win;
1358 dev->nclips = f->fmt.win.clipcount;
1359
1360 if (copy_from_user(dev->clips, f->fmt.win.clips,
1361 sizeof(struct v4l2_clip) * dev->nclips))
1362 return -EFAULT;
1363
1364 if (priv == dev->overlay_owner) {
1365 spin_lock_irqsave(&dev->slock, flags);
1366 stop_preview(dev);
1367 start_preview(dev);
1368 spin_unlock_irqrestore(&dev->slock, flags);
1369 }
1370
1371 return 0;
1372 }
1373
saa7134_enum_input(struct file * file,void * priv,struct v4l2_input * i)1374 int saa7134_enum_input(struct file *file, void *priv, struct v4l2_input *i)
1375 {
1376 struct saa7134_dev *dev = video_drvdata(file);
1377 unsigned int n;
1378
1379 n = i->index;
1380 if (n >= SAA7134_INPUT_MAX)
1381 return -EINVAL;
1382 if (NULL == card_in(dev, i->index).name)
1383 return -EINVAL;
1384 i->index = n;
1385 i->type = V4L2_INPUT_TYPE_CAMERA;
1386 strcpy(i->name, card_in(dev, n).name);
1387 if (card_in(dev, n).tv)
1388 i->type = V4L2_INPUT_TYPE_TUNER;
1389 if (n == dev->ctl_input) {
1390 int v1 = saa_readb(SAA7134_STATUS_VIDEO1);
1391 int v2 = saa_readb(SAA7134_STATUS_VIDEO2);
1392
1393 if (0 != (v1 & 0x40))
1394 i->status |= V4L2_IN_ST_NO_H_LOCK;
1395 if (0 != (v2 & 0x40))
1396 i->status |= V4L2_IN_ST_NO_SIGNAL;
1397 if (0 != (v2 & 0x0e))
1398 i->status |= V4L2_IN_ST_MACROVISION;
1399 }
1400 i->std = SAA7134_NORMS;
1401 return 0;
1402 }
1403 EXPORT_SYMBOL_GPL(saa7134_enum_input);
1404
saa7134_g_input(struct file * file,void * priv,unsigned int * i)1405 int saa7134_g_input(struct file *file, void *priv, unsigned int *i)
1406 {
1407 struct saa7134_dev *dev = video_drvdata(file);
1408
1409 *i = dev->ctl_input;
1410 return 0;
1411 }
1412 EXPORT_SYMBOL_GPL(saa7134_g_input);
1413
saa7134_s_input(struct file * file,void * priv,unsigned int i)1414 int saa7134_s_input(struct file *file, void *priv, unsigned int i)
1415 {
1416 struct saa7134_dev *dev = video_drvdata(file);
1417
1418 if (i >= SAA7134_INPUT_MAX)
1419 return -EINVAL;
1420 if (NULL == card_in(dev, i).name)
1421 return -EINVAL;
1422 video_mux(dev, i);
1423 return 0;
1424 }
1425 EXPORT_SYMBOL_GPL(saa7134_s_input);
1426
saa7134_querycap(struct file * file,void * priv,struct v4l2_capability * cap)1427 int saa7134_querycap(struct file *file, void *priv,
1428 struct v4l2_capability *cap)
1429 {
1430 struct saa7134_dev *dev = video_drvdata(file);
1431 struct video_device *vdev = video_devdata(file);
1432 u32 radio_caps, video_caps, vbi_caps;
1433
1434 unsigned int tuner_type = dev->tuner_type;
1435
1436 strcpy(cap->driver, "saa7134");
1437 strlcpy(cap->card, saa7134_boards[dev->board].name,
1438 sizeof(cap->card));
1439 sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
1440
1441 cap->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
1442 if ((tuner_type != TUNER_ABSENT) && (tuner_type != UNSET))
1443 cap->device_caps |= V4L2_CAP_TUNER;
1444
1445 radio_caps = V4L2_CAP_RADIO;
1446 if (dev->has_rds)
1447 radio_caps |= V4L2_CAP_RDS_CAPTURE;
1448
1449 video_caps = V4L2_CAP_VIDEO_CAPTURE;
1450 if (saa7134_no_overlay <= 0 && !is_empress(file))
1451 video_caps |= V4L2_CAP_VIDEO_OVERLAY;
1452
1453 vbi_caps = V4L2_CAP_VBI_CAPTURE;
1454
1455 switch (vdev->vfl_type) {
1456 case VFL_TYPE_RADIO:
1457 cap->device_caps |= radio_caps;
1458 break;
1459 case VFL_TYPE_GRABBER:
1460 cap->device_caps |= video_caps;
1461 break;
1462 case VFL_TYPE_VBI:
1463 cap->device_caps |= vbi_caps;
1464 break;
1465 }
1466 cap->capabilities = radio_caps | video_caps | vbi_caps |
1467 cap->device_caps | V4L2_CAP_DEVICE_CAPS;
1468 if (vdev->vfl_type == VFL_TYPE_RADIO) {
1469 cap->device_caps &= ~V4L2_CAP_STREAMING;
1470 if (!dev->has_rds)
1471 cap->device_caps &= ~V4L2_CAP_READWRITE;
1472 }
1473
1474 return 0;
1475 }
1476 EXPORT_SYMBOL_GPL(saa7134_querycap);
1477
saa7134_s_std(struct file * file,void * priv,v4l2_std_id id)1478 int saa7134_s_std(struct file *file, void *priv, v4l2_std_id id)
1479 {
1480 struct saa7134_dev *dev = video_drvdata(file);
1481 struct v4l2_fh *fh = priv;
1482 unsigned long flags;
1483 unsigned int i;
1484 v4l2_std_id fixup;
1485
1486 if (is_empress(file) && dev->overlay_owner) {
1487 /* Don't change the std from the mpeg device
1488 if overlay is active. */
1489 return -EBUSY;
1490 }
1491
1492 for (i = 0; i < TVNORMS; i++)
1493 if (id == tvnorms[i].id)
1494 break;
1495
1496 if (i == TVNORMS)
1497 for (i = 0; i < TVNORMS; i++)
1498 if (id & tvnorms[i].id)
1499 break;
1500 if (i == TVNORMS)
1501 return -EINVAL;
1502
1503 if ((id & V4L2_STD_SECAM) && (secam[0] != '-')) {
1504 if (secam[0] == 'L' || secam[0] == 'l') {
1505 if (secam[1] == 'C' || secam[1] == 'c')
1506 fixup = V4L2_STD_SECAM_LC;
1507 else
1508 fixup = V4L2_STD_SECAM_L;
1509 } else {
1510 if (secam[0] == 'D' || secam[0] == 'd')
1511 fixup = V4L2_STD_SECAM_DK;
1512 else
1513 fixup = V4L2_STD_SECAM;
1514 }
1515 for (i = 0; i < TVNORMS; i++) {
1516 if (fixup == tvnorms[i].id)
1517 break;
1518 }
1519 if (i == TVNORMS)
1520 return -EINVAL;
1521 }
1522
1523 id = tvnorms[i].id;
1524
1525 if (!is_empress(file) && fh == dev->overlay_owner) {
1526 spin_lock_irqsave(&dev->slock, flags);
1527 stop_preview(dev);
1528 spin_unlock_irqrestore(&dev->slock, flags);
1529
1530 set_tvnorm(dev, &tvnorms[i]);
1531
1532 spin_lock_irqsave(&dev->slock, flags);
1533 start_preview(dev);
1534 spin_unlock_irqrestore(&dev->slock, flags);
1535 } else
1536 set_tvnorm(dev, &tvnorms[i]);
1537
1538 saa7134_tvaudio_do_scan(dev);
1539 return 0;
1540 }
1541 EXPORT_SYMBOL_GPL(saa7134_s_std);
1542
saa7134_g_std(struct file * file,void * priv,v4l2_std_id * id)1543 int saa7134_g_std(struct file *file, void *priv, v4l2_std_id *id)
1544 {
1545 struct saa7134_dev *dev = video_drvdata(file);
1546
1547 *id = dev->tvnorm->id;
1548 return 0;
1549 }
1550 EXPORT_SYMBOL_GPL(saa7134_g_std);
1551
saa7134_read_std(struct saa7134_dev * dev)1552 static v4l2_std_id saa7134_read_std(struct saa7134_dev *dev)
1553 {
1554 static v4l2_std_id stds[] = {
1555 V4L2_STD_UNKNOWN,
1556 V4L2_STD_NTSC,
1557 V4L2_STD_PAL,
1558 V4L2_STD_SECAM };
1559
1560 v4l2_std_id result = 0;
1561
1562 u8 st1 = saa_readb(SAA7134_STATUS_VIDEO1);
1563 u8 st2 = saa_readb(SAA7134_STATUS_VIDEO2);
1564
1565 if (!(st2 & 0x1)) /* RDCAP == 0 */
1566 result = V4L2_STD_UNKNOWN;
1567 else
1568 result = stds[st1 & 0x03];
1569
1570 return result;
1571 }
1572
saa7134_querystd(struct file * file,void * priv,v4l2_std_id * std)1573 int saa7134_querystd(struct file *file, void *priv, v4l2_std_id *std)
1574 {
1575 struct saa7134_dev *dev = video_drvdata(file);
1576 *std &= saa7134_read_std(dev);
1577 return 0;
1578 }
1579 EXPORT_SYMBOL_GPL(saa7134_querystd);
1580
saa7134_cropcap(struct file * file,void * priv,struct v4l2_cropcap * cap)1581 static int saa7134_cropcap(struct file *file, void *priv,
1582 struct v4l2_cropcap *cap)
1583 {
1584 struct saa7134_dev *dev = video_drvdata(file);
1585
1586 if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1587 cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1588 return -EINVAL;
1589 cap->bounds = dev->crop_bounds;
1590 cap->defrect = dev->crop_defrect;
1591 cap->pixelaspect.numerator = 1;
1592 cap->pixelaspect.denominator = 1;
1593 if (dev->tvnorm->id & V4L2_STD_525_60) {
1594 cap->pixelaspect.numerator = 11;
1595 cap->pixelaspect.denominator = 10;
1596 }
1597 if (dev->tvnorm->id & V4L2_STD_625_50) {
1598 cap->pixelaspect.numerator = 54;
1599 cap->pixelaspect.denominator = 59;
1600 }
1601 return 0;
1602 }
1603
saa7134_g_crop(struct file * file,void * f,struct v4l2_crop * crop)1604 static int saa7134_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
1605 {
1606 struct saa7134_dev *dev = video_drvdata(file);
1607
1608 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1609 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1610 return -EINVAL;
1611 crop->c = dev->crop_current;
1612 return 0;
1613 }
1614
saa7134_s_crop(struct file * file,void * f,const struct v4l2_crop * crop)1615 static int saa7134_s_crop(struct file *file, void *f, const struct v4l2_crop *crop)
1616 {
1617 struct saa7134_dev *dev = video_drvdata(file);
1618 struct v4l2_rect *b = &dev->crop_bounds;
1619 struct v4l2_rect *c = &dev->crop_current;
1620
1621 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1622 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1623 return -EINVAL;
1624
1625 if (dev->overlay_owner)
1626 return -EBUSY;
1627 if (vb2_is_streaming(&dev->video_vbq))
1628 return -EBUSY;
1629
1630 *c = crop->c;
1631 if (c->top < b->top)
1632 c->top = b->top;
1633 if (c->top > b->top + b->height)
1634 c->top = b->top + b->height;
1635 if (c->height > b->top - c->top + b->height)
1636 c->height = b->top - c->top + b->height;
1637
1638 if (c->left < b->left)
1639 c->left = b->left;
1640 if (c->left > b->left + b->width)
1641 c->left = b->left + b->width;
1642 if (c->width > b->left - c->left + b->width)
1643 c->width = b->left - c->left + b->width;
1644 return 0;
1645 }
1646
saa7134_g_tuner(struct file * file,void * priv,struct v4l2_tuner * t)1647 int saa7134_g_tuner(struct file *file, void *priv,
1648 struct v4l2_tuner *t)
1649 {
1650 struct saa7134_dev *dev = video_drvdata(file);
1651 int n;
1652
1653 if (0 != t->index)
1654 return -EINVAL;
1655 memset(t, 0, sizeof(*t));
1656 for (n = 0; n < SAA7134_INPUT_MAX; n++) {
1657 if (card_in(dev, n).tv)
1658 break;
1659 }
1660 if (n == SAA7134_INPUT_MAX)
1661 return -EINVAL;
1662 if (NULL != card_in(dev, n).name) {
1663 strcpy(t->name, "Television");
1664 t->type = V4L2_TUNER_ANALOG_TV;
1665 saa_call_all(dev, tuner, g_tuner, t);
1666 t->capability = V4L2_TUNER_CAP_NORM |
1667 V4L2_TUNER_CAP_STEREO |
1668 V4L2_TUNER_CAP_LANG1 |
1669 V4L2_TUNER_CAP_LANG2;
1670 t->rxsubchans = saa7134_tvaudio_getstereo(dev);
1671 t->audmode = saa7134_tvaudio_rx2mode(t->rxsubchans);
1672 }
1673 if (0 != (saa_readb(SAA7134_STATUS_VIDEO1) & 0x03))
1674 t->signal = 0xffff;
1675 return 0;
1676 }
1677 EXPORT_SYMBOL_GPL(saa7134_g_tuner);
1678
saa7134_s_tuner(struct file * file,void * priv,const struct v4l2_tuner * t)1679 int saa7134_s_tuner(struct file *file, void *priv,
1680 const struct v4l2_tuner *t)
1681 {
1682 struct saa7134_dev *dev = video_drvdata(file);
1683 int rx, mode;
1684
1685 if (0 != t->index)
1686 return -EINVAL;
1687
1688 mode = dev->thread.mode;
1689 if (UNSET == mode) {
1690 rx = saa7134_tvaudio_getstereo(dev);
1691 mode = saa7134_tvaudio_rx2mode(rx);
1692 }
1693 if (mode != t->audmode)
1694 dev->thread.mode = t->audmode;
1695
1696 return 0;
1697 }
1698 EXPORT_SYMBOL_GPL(saa7134_s_tuner);
1699
saa7134_g_frequency(struct file * file,void * priv,struct v4l2_frequency * f)1700 int saa7134_g_frequency(struct file *file, void *priv,
1701 struct v4l2_frequency *f)
1702 {
1703 struct saa7134_dev *dev = video_drvdata(file);
1704
1705 if (0 != f->tuner)
1706 return -EINVAL;
1707
1708 saa_call_all(dev, tuner, g_frequency, f);
1709
1710 return 0;
1711 }
1712 EXPORT_SYMBOL_GPL(saa7134_g_frequency);
1713
saa7134_s_frequency(struct file * file,void * priv,const struct v4l2_frequency * f)1714 int saa7134_s_frequency(struct file *file, void *priv,
1715 const struct v4l2_frequency *f)
1716 {
1717 struct saa7134_dev *dev = video_drvdata(file);
1718
1719 if (0 != f->tuner)
1720 return -EINVAL;
1721
1722 saa_call_all(dev, tuner, s_frequency, f);
1723
1724 saa7134_tvaudio_do_scan(dev);
1725 return 0;
1726 }
1727 EXPORT_SYMBOL_GPL(saa7134_s_frequency);
1728
saa7134_enum_fmt_vid_cap(struct file * file,void * priv,struct v4l2_fmtdesc * f)1729 static int saa7134_enum_fmt_vid_cap(struct file *file, void *priv,
1730 struct v4l2_fmtdesc *f)
1731 {
1732 if (f->index >= FORMATS)
1733 return -EINVAL;
1734
1735 strlcpy(f->description, formats[f->index].name,
1736 sizeof(f->description));
1737
1738 f->pixelformat = formats[f->index].fourcc;
1739
1740 return 0;
1741 }
1742
saa7134_enum_fmt_vid_overlay(struct file * file,void * priv,struct v4l2_fmtdesc * f)1743 static int saa7134_enum_fmt_vid_overlay(struct file *file, void *priv,
1744 struct v4l2_fmtdesc *f)
1745 {
1746 if (saa7134_no_overlay > 0) {
1747 printk(KERN_ERR "V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1748 return -EINVAL;
1749 }
1750
1751 if ((f->index >= FORMATS) || formats[f->index].planar)
1752 return -EINVAL;
1753
1754 strlcpy(f->description, formats[f->index].name,
1755 sizeof(f->description));
1756
1757 f->pixelformat = formats[f->index].fourcc;
1758
1759 return 0;
1760 }
1761
saa7134_g_fbuf(struct file * file,void * f,struct v4l2_framebuffer * fb)1762 static int saa7134_g_fbuf(struct file *file, void *f,
1763 struct v4l2_framebuffer *fb)
1764 {
1765 struct saa7134_dev *dev = video_drvdata(file);
1766
1767 *fb = dev->ovbuf;
1768 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
1769
1770 return 0;
1771 }
1772
saa7134_s_fbuf(struct file * file,void * f,const struct v4l2_framebuffer * fb)1773 static int saa7134_s_fbuf(struct file *file, void *f,
1774 const struct v4l2_framebuffer *fb)
1775 {
1776 struct saa7134_dev *dev = video_drvdata(file);
1777 struct saa7134_format *fmt;
1778
1779 if (!capable(CAP_SYS_ADMIN) &&
1780 !capable(CAP_SYS_RAWIO))
1781 return -EPERM;
1782
1783 /* check args */
1784 fmt = format_by_fourcc(fb->fmt.pixelformat);
1785 if (NULL == fmt)
1786 return -EINVAL;
1787
1788 /* ok, accept it */
1789 dev->ovbuf = *fb;
1790 dev->ovfmt = fmt;
1791 if (0 == dev->ovbuf.fmt.bytesperline)
1792 dev->ovbuf.fmt.bytesperline =
1793 dev->ovbuf.fmt.width*fmt->depth/8;
1794 return 0;
1795 }
1796
saa7134_overlay(struct file * file,void * priv,unsigned int on)1797 static int saa7134_overlay(struct file *file, void *priv, unsigned int on)
1798 {
1799 struct saa7134_dev *dev = video_drvdata(file);
1800 unsigned long flags;
1801
1802 if (on) {
1803 if (saa7134_no_overlay > 0) {
1804 dprintk("no_overlay\n");
1805 return -EINVAL;
1806 }
1807
1808 if (dev->overlay_owner && priv != dev->overlay_owner)
1809 return -EBUSY;
1810 dev->overlay_owner = priv;
1811 spin_lock_irqsave(&dev->slock, flags);
1812 start_preview(dev);
1813 spin_unlock_irqrestore(&dev->slock, flags);
1814 }
1815 if (!on) {
1816 if (priv != dev->overlay_owner)
1817 return -EINVAL;
1818 spin_lock_irqsave(&dev->slock, flags);
1819 stop_preview(dev);
1820 spin_unlock_irqrestore(&dev->slock, flags);
1821 dev->overlay_owner = NULL;
1822 }
1823 return 0;
1824 }
1825
1826 #ifdef CONFIG_VIDEO_ADV_DEBUG
vidioc_g_register(struct file * file,void * priv,struct v4l2_dbg_register * reg)1827 static int vidioc_g_register (struct file *file, void *priv,
1828 struct v4l2_dbg_register *reg)
1829 {
1830 struct saa7134_dev *dev = video_drvdata(file);
1831
1832 reg->val = saa_readb(reg->reg & 0xffffff);
1833 reg->size = 1;
1834 return 0;
1835 }
1836
vidioc_s_register(struct file * file,void * priv,const struct v4l2_dbg_register * reg)1837 static int vidioc_s_register (struct file *file, void *priv,
1838 const struct v4l2_dbg_register *reg)
1839 {
1840 struct saa7134_dev *dev = video_drvdata(file);
1841
1842 saa_writeb(reg->reg & 0xffffff, reg->val);
1843 return 0;
1844 }
1845 #endif
1846
radio_g_tuner(struct file * file,void * priv,struct v4l2_tuner * t)1847 static int radio_g_tuner(struct file *file, void *priv,
1848 struct v4l2_tuner *t)
1849 {
1850 struct saa7134_dev *dev = video_drvdata(file);
1851
1852 if (0 != t->index)
1853 return -EINVAL;
1854
1855 strcpy(t->name, "Radio");
1856
1857 saa_call_all(dev, tuner, g_tuner, t);
1858 t->audmode &= V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO;
1859 if (dev->input->amux == TV) {
1860 t->signal = 0xf800 - ((saa_readb(0x581) & 0x1f) << 11);
1861 t->rxsubchans = (saa_readb(0x529) & 0x08) ?
1862 V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO;
1863 }
1864 return 0;
1865 }
radio_s_tuner(struct file * file,void * priv,const struct v4l2_tuner * t)1866 static int radio_s_tuner(struct file *file, void *priv,
1867 const struct v4l2_tuner *t)
1868 {
1869 struct saa7134_dev *dev = video_drvdata(file);
1870
1871 if (0 != t->index)
1872 return -EINVAL;
1873
1874 saa_call_all(dev, tuner, s_tuner, t);
1875 return 0;
1876 }
1877
1878 static const struct v4l2_file_operations video_fops =
1879 {
1880 .owner = THIS_MODULE,
1881 .open = video_open,
1882 .release = video_release,
1883 .read = vb2_fop_read,
1884 .poll = vb2_fop_poll,
1885 .mmap = vb2_fop_mmap,
1886 .unlocked_ioctl = video_ioctl2,
1887 };
1888
1889 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1890 .vidioc_querycap = saa7134_querycap,
1891 .vidioc_enum_fmt_vid_cap = saa7134_enum_fmt_vid_cap,
1892 .vidioc_g_fmt_vid_cap = saa7134_g_fmt_vid_cap,
1893 .vidioc_try_fmt_vid_cap = saa7134_try_fmt_vid_cap,
1894 .vidioc_s_fmt_vid_cap = saa7134_s_fmt_vid_cap,
1895 .vidioc_enum_fmt_vid_overlay = saa7134_enum_fmt_vid_overlay,
1896 .vidioc_g_fmt_vid_overlay = saa7134_g_fmt_vid_overlay,
1897 .vidioc_try_fmt_vid_overlay = saa7134_try_fmt_vid_overlay,
1898 .vidioc_s_fmt_vid_overlay = saa7134_s_fmt_vid_overlay,
1899 .vidioc_g_fmt_vbi_cap = saa7134_try_get_set_fmt_vbi_cap,
1900 .vidioc_try_fmt_vbi_cap = saa7134_try_get_set_fmt_vbi_cap,
1901 .vidioc_s_fmt_vbi_cap = saa7134_try_get_set_fmt_vbi_cap,
1902 .vidioc_cropcap = saa7134_cropcap,
1903 .vidioc_reqbufs = vb2_ioctl_reqbufs,
1904 .vidioc_querybuf = vb2_ioctl_querybuf,
1905 .vidioc_qbuf = vb2_ioctl_qbuf,
1906 .vidioc_dqbuf = vb2_ioctl_dqbuf,
1907 .vidioc_s_std = saa7134_s_std,
1908 .vidioc_g_std = saa7134_g_std,
1909 .vidioc_querystd = saa7134_querystd,
1910 .vidioc_enum_input = saa7134_enum_input,
1911 .vidioc_g_input = saa7134_g_input,
1912 .vidioc_s_input = saa7134_s_input,
1913 .vidioc_streamon = vb2_ioctl_streamon,
1914 .vidioc_streamoff = vb2_ioctl_streamoff,
1915 .vidioc_g_tuner = saa7134_g_tuner,
1916 .vidioc_s_tuner = saa7134_s_tuner,
1917 .vidioc_g_crop = saa7134_g_crop,
1918 .vidioc_s_crop = saa7134_s_crop,
1919 .vidioc_g_fbuf = saa7134_g_fbuf,
1920 .vidioc_s_fbuf = saa7134_s_fbuf,
1921 .vidioc_overlay = saa7134_overlay,
1922 .vidioc_g_frequency = saa7134_g_frequency,
1923 .vidioc_s_frequency = saa7134_s_frequency,
1924 #ifdef CONFIG_VIDEO_ADV_DEBUG
1925 .vidioc_g_register = vidioc_g_register,
1926 .vidioc_s_register = vidioc_s_register,
1927 #endif
1928 .vidioc_log_status = v4l2_ctrl_log_status,
1929 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1930 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1931 };
1932
1933 static const struct v4l2_file_operations radio_fops = {
1934 .owner = THIS_MODULE,
1935 .open = video_open,
1936 .read = radio_read,
1937 .release = video_release,
1938 .unlocked_ioctl = video_ioctl2,
1939 .poll = radio_poll,
1940 };
1941
1942 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
1943 .vidioc_querycap = saa7134_querycap,
1944 .vidioc_g_tuner = radio_g_tuner,
1945 .vidioc_s_tuner = radio_s_tuner,
1946 .vidioc_g_frequency = saa7134_g_frequency,
1947 .vidioc_s_frequency = saa7134_s_frequency,
1948 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1949 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1950 };
1951
1952 /* ----------------------------------------------------------- */
1953 /* exported stuff */
1954
1955 struct video_device saa7134_video_template = {
1956 .name = "saa7134-video",
1957 .fops = &video_fops,
1958 .ioctl_ops = &video_ioctl_ops,
1959 .tvnorms = SAA7134_NORMS,
1960 };
1961
1962 struct video_device saa7134_radio_template = {
1963 .name = "saa7134-radio",
1964 .fops = &radio_fops,
1965 .ioctl_ops = &radio_ioctl_ops,
1966 };
1967
1968 static const struct v4l2_ctrl_ops saa7134_ctrl_ops = {
1969 .s_ctrl = saa7134_s_ctrl,
1970 };
1971
1972 static const struct v4l2_ctrl_config saa7134_ctrl_invert = {
1973 .ops = &saa7134_ctrl_ops,
1974 .id = V4L2_CID_PRIVATE_INVERT,
1975 .name = "Invert",
1976 .type = V4L2_CTRL_TYPE_BOOLEAN,
1977 .min = 0,
1978 .max = 1,
1979 .step = 1,
1980 };
1981
1982 static const struct v4l2_ctrl_config saa7134_ctrl_y_odd = {
1983 .ops = &saa7134_ctrl_ops,
1984 .id = V4L2_CID_PRIVATE_Y_ODD,
1985 .name = "Y Offset Odd Field",
1986 .type = V4L2_CTRL_TYPE_INTEGER,
1987 .min = 0,
1988 .max = 128,
1989 .step = 1,
1990 };
1991
1992 static const struct v4l2_ctrl_config saa7134_ctrl_y_even = {
1993 .ops = &saa7134_ctrl_ops,
1994 .id = V4L2_CID_PRIVATE_Y_EVEN,
1995 .name = "Y Offset Even Field",
1996 .type = V4L2_CTRL_TYPE_INTEGER,
1997 .min = 0,
1998 .max = 128,
1999 .step = 1,
2000 };
2001
2002 static const struct v4l2_ctrl_config saa7134_ctrl_automute = {
2003 .ops = &saa7134_ctrl_ops,
2004 .id = V4L2_CID_PRIVATE_AUTOMUTE,
2005 .name = "Automute",
2006 .type = V4L2_CTRL_TYPE_BOOLEAN,
2007 .min = 0,
2008 .max = 1,
2009 .step = 1,
2010 .def = 1,
2011 };
2012
saa7134_video_init1(struct saa7134_dev * dev)2013 int saa7134_video_init1(struct saa7134_dev *dev)
2014 {
2015 struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler;
2016 struct vb2_queue *q;
2017 int ret;
2018
2019 /* sanitycheck insmod options */
2020 if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
2021 gbuffers = 2;
2022 if (gbufsize > gbufsize_max)
2023 gbufsize = gbufsize_max;
2024 gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
2025
2026 v4l2_ctrl_handler_init(hdl, 11);
2027 v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2028 V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
2029 v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2030 V4L2_CID_CONTRAST, 0, 127, 1, 68);
2031 v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2032 V4L2_CID_SATURATION, 0, 127, 1, 64);
2033 v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2034 V4L2_CID_HUE, -128, 127, 1, 0);
2035 v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2036 V4L2_CID_HFLIP, 0, 1, 1, 0);
2037 v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2038 V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
2039 v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2040 V4L2_CID_AUDIO_VOLUME, -15, 15, 1, 0);
2041 v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_invert, NULL);
2042 v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_y_odd, NULL);
2043 v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_y_even, NULL);
2044 v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_automute, NULL);
2045 if (hdl->error)
2046 return hdl->error;
2047 if (card_has_radio(dev)) {
2048 hdl = &dev->radio_ctrl_handler;
2049 v4l2_ctrl_handler_init(hdl, 2);
2050 v4l2_ctrl_add_handler(hdl, &dev->ctrl_handler,
2051 v4l2_ctrl_radio_filter);
2052 if (hdl->error)
2053 return hdl->error;
2054 }
2055 dev->ctl_mute = 1;
2056
2057 if (dev->tda9887_conf && saa7134_ctrl_automute.def)
2058 dev->tda9887_conf |= TDA9887_AUTOMUTE;
2059 dev->automute = 0;
2060
2061 INIT_LIST_HEAD(&dev->video_q.queue);
2062 init_timer(&dev->video_q.timeout);
2063 dev->video_q.timeout.function = saa7134_buffer_timeout;
2064 dev->video_q.timeout.data = (unsigned long)(&dev->video_q);
2065 dev->video_q.dev = dev;
2066 dev->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
2067 dev->width = 720;
2068 dev->height = 576;
2069 dev->field = V4L2_FIELD_INTERLACED;
2070 dev->win.w.width = dev->width;
2071 dev->win.w.height = dev->height;
2072 dev->win.field = V4L2_FIELD_INTERLACED;
2073 dev->ovbuf.fmt.width = dev->width;
2074 dev->ovbuf.fmt.height = dev->height;
2075 dev->ovbuf.fmt.pixelformat = dev->fmt->fourcc;
2076 dev->ovbuf.fmt.colorspace = V4L2_COLORSPACE_SMPTE170M;
2077
2078 if (saa7134_boards[dev->board].video_out)
2079 saa7134_videoport_init(dev);
2080
2081 q = &dev->video_vbq;
2082 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2083 /*
2084 * Do not add VB2_USERPTR unless explicitly requested: the saa7134 DMA
2085 * engine cannot handle transfers that do not start at the beginning
2086 * of a page. A user-provided pointer can start anywhere in a page, so
2087 * USERPTR support is a no-go unless the application knows about these
2088 * limitations and has special support for this.
2089 */
2090 q->io_modes = VB2_MMAP | VB2_READ;
2091 if (saa7134_userptr)
2092 q->io_modes |= VB2_USERPTR;
2093 q->drv_priv = &dev->video_q;
2094 q->ops = &vb2_qops;
2095 q->gfp_flags = GFP_DMA32;
2096 q->mem_ops = &vb2_dma_sg_memops;
2097 q->buf_struct_size = sizeof(struct saa7134_buf);
2098 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
2099 q->lock = &dev->lock;
2100 ret = vb2_queue_init(q);
2101 if (ret)
2102 return ret;
2103 saa7134_pgtable_alloc(dev->pci, &dev->video_q.pt);
2104
2105 q = &dev->vbi_vbq;
2106 q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
2107 /* Don't add VB2_USERPTR, see comment above */
2108 q->io_modes = VB2_MMAP | VB2_READ;
2109 if (saa7134_userptr)
2110 q->io_modes |= VB2_USERPTR;
2111 q->drv_priv = &dev->vbi_q;
2112 q->ops = &saa7134_vbi_qops;
2113 q->gfp_flags = GFP_DMA32;
2114 q->mem_ops = &vb2_dma_sg_memops;
2115 q->buf_struct_size = sizeof(struct saa7134_buf);
2116 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
2117 q->lock = &dev->lock;
2118 ret = vb2_queue_init(q);
2119 if (ret)
2120 return ret;
2121 saa7134_pgtable_alloc(dev->pci, &dev->vbi_q.pt);
2122
2123 return 0;
2124 }
2125
saa7134_video_fini(struct saa7134_dev * dev)2126 void saa7134_video_fini(struct saa7134_dev *dev)
2127 {
2128 /* free stuff */
2129 vb2_queue_release(&dev->video_vbq);
2130 saa7134_pgtable_free(dev->pci, &dev->video_q.pt);
2131 vb2_queue_release(&dev->vbi_vbq);
2132 saa7134_pgtable_free(dev->pci, &dev->vbi_q.pt);
2133 v4l2_ctrl_handler_free(&dev->ctrl_handler);
2134 if (card_has_radio(dev))
2135 v4l2_ctrl_handler_free(&dev->radio_ctrl_handler);
2136 }
2137
saa7134_videoport_init(struct saa7134_dev * dev)2138 int saa7134_videoport_init(struct saa7134_dev *dev)
2139 {
2140 /* enable video output */
2141 int vo = saa7134_boards[dev->board].video_out;
2142 int video_reg;
2143 unsigned int vid_port_opts = saa7134_boards[dev->board].vid_port_opts;
2144
2145 /* Configure videoport */
2146 saa_writeb(SAA7134_VIDEO_PORT_CTRL0, video_out[vo][0]);
2147 video_reg = video_out[vo][1];
2148 if (vid_port_opts & SET_T_CODE_POLARITY_NON_INVERTED)
2149 video_reg &= ~VP_T_CODE_P_INVERTED;
2150 saa_writeb(SAA7134_VIDEO_PORT_CTRL1, video_reg);
2151 saa_writeb(SAA7134_VIDEO_PORT_CTRL2, video_out[vo][2]);
2152 saa_writeb(SAA7134_VIDEO_PORT_CTRL4, video_out[vo][4]);
2153 video_reg = video_out[vo][5];
2154 if (vid_port_opts & SET_CLOCK_NOT_DELAYED)
2155 video_reg &= ~VP_CLK_CTRL2_DELAYED;
2156 if (vid_port_opts & SET_CLOCK_INVERTED)
2157 video_reg |= VP_CLK_CTRL1_INVERTED;
2158 saa_writeb(SAA7134_VIDEO_PORT_CTRL5, video_reg);
2159 video_reg = video_out[vo][6];
2160 if (vid_port_opts & SET_VSYNC_OFF) {
2161 video_reg &= ~VP_VS_TYPE_MASK;
2162 video_reg |= VP_VS_TYPE_OFF;
2163 }
2164 saa_writeb(SAA7134_VIDEO_PORT_CTRL6, video_reg);
2165 saa_writeb(SAA7134_VIDEO_PORT_CTRL7, video_out[vo][7]);
2166 saa_writeb(SAA7134_VIDEO_PORT_CTRL8, video_out[vo][8]);
2167
2168 /* Start videoport */
2169 saa_writeb(SAA7134_VIDEO_PORT_CTRL3, video_out[vo][3]);
2170
2171 return 0;
2172 }
2173
saa7134_video_init2(struct saa7134_dev * dev)2174 int saa7134_video_init2(struct saa7134_dev *dev)
2175 {
2176 /* init video hw */
2177 set_tvnorm(dev,&tvnorms[0]);
2178 video_mux(dev,0);
2179 v4l2_ctrl_handler_setup(&dev->ctrl_handler);
2180 saa7134_tvaudio_setmute(dev);
2181 saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
2182 return 0;
2183 }
2184
saa7134_irq_video_signalchange(struct saa7134_dev * dev)2185 void saa7134_irq_video_signalchange(struct saa7134_dev *dev)
2186 {
2187 static const char *st[] = {
2188 "(no signal)", "NTSC", "PAL", "SECAM" };
2189 u32 st1,st2;
2190
2191 st1 = saa_readb(SAA7134_STATUS_VIDEO1);
2192 st2 = saa_readb(SAA7134_STATUS_VIDEO2);
2193 dprintk("DCSDT: pll: %s, sync: %s, norm: %s\n",
2194 (st1 & 0x40) ? "not locked" : "locked",
2195 (st2 & 0x40) ? "no" : "yes",
2196 st[st1 & 0x03]);
2197 dev->nosignal = (st1 & 0x40) || (st2 & 0x40) || !(st2 & 0x1);
2198
2199 if (dev->nosignal) {
2200 /* no video signal -> mute audio */
2201 if (dev->ctl_automute)
2202 dev->automute = 1;
2203 saa7134_tvaudio_setmute(dev);
2204 } else {
2205 /* wake up tvaudio audio carrier scan thread */
2206 saa7134_tvaudio_do_scan(dev);
2207 }
2208
2209 if ((st2 & 0x80) && !noninterlaced && !dev->nosignal)
2210 saa_clearb(SAA7134_SYNC_CTRL, 0x20);
2211 else
2212 saa_setb(SAA7134_SYNC_CTRL, 0x20);
2213
2214 if (dev->mops && dev->mops->signal_change)
2215 dev->mops->signal_change(dev);
2216 }
2217
2218
saa7134_irq_video_done(struct saa7134_dev * dev,unsigned long status)2219 void saa7134_irq_video_done(struct saa7134_dev *dev, unsigned long status)
2220 {
2221 enum v4l2_field field;
2222
2223 spin_lock(&dev->slock);
2224 if (dev->video_q.curr) {
2225 field = dev->field;
2226 if (V4L2_FIELD_HAS_BOTH(field)) {
2227 /* make sure we have seen both fields */
2228 if ((status & 0x10) == 0x00) {
2229 dev->video_q.curr->top_seen = 1;
2230 goto done;
2231 }
2232 if (!dev->video_q.curr->top_seen)
2233 goto done;
2234 } else if (field == V4L2_FIELD_TOP) {
2235 if ((status & 0x10) != 0x10)
2236 goto done;
2237 } else if (field == V4L2_FIELD_BOTTOM) {
2238 if ((status & 0x10) != 0x00)
2239 goto done;
2240 }
2241 saa7134_buffer_finish(dev, &dev->video_q, VB2_BUF_STATE_DONE);
2242 }
2243 saa7134_buffer_next(dev, &dev->video_q);
2244
2245 done:
2246 spin_unlock(&dev->slock);
2247 }
2248