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Merge remote-tracking branch 'vfio/next'
[deliverable/linux.git] / drivers / media / pci / saa7134 / saa7134-video.c
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 "saa7134.h"
24 #include "saa7134-reg.h"
25
26 #include <linux/init.h>
27 #include <linux/list.h>
28 #include <linux/module.h>
29 #include <linux/kernel.h>
30 #include <linux/slab.h>
31 #include <linux/sort.h>
32
33 #include <media/v4l2-common.h>
34 #include <media/v4l2-event.h>
35 #include <media/i2c/saa6588.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 video_dbg(fmt, arg...) do { \
56 if (video_debug & 0x04) \
57 printk(KERN_DEBUG pr_fmt("video: " fmt), ## arg); \
58 } while (0)
59
60 /* ------------------------------------------------------------------ */
61 /* Defines for Video Output Port Register at address 0x191 */
62
63 /* Bit 0: VIP code T bit polarity */
64
65 #define VP_T_CODE_P_NON_INVERTED 0x00
66 #define VP_T_CODE_P_INVERTED 0x01
67
68 /* ------------------------------------------------------------------ */
69 /* Defines for Video Output Port Register at address 0x195 */
70
71 /* Bit 2: Video output clock delay control */
72
73 #define VP_CLK_CTRL2_NOT_DELAYED 0x00
74 #define VP_CLK_CTRL2_DELAYED 0x04
75
76 /* Bit 1: Video output clock invert control */
77
78 #define VP_CLK_CTRL1_NON_INVERTED 0x00
79 #define VP_CLK_CTRL1_INVERTED 0x02
80
81 /* ------------------------------------------------------------------ */
82 /* Defines for Video Output Port Register at address 0x196 */
83
84 /* Bits 2 to 0: VSYNC pin video vertical sync type */
85
86 #define VP_VS_TYPE_MASK 0x07
87
88 #define VP_VS_TYPE_OFF 0x00
89 #define VP_VS_TYPE_V123 0x01
90 #define VP_VS_TYPE_V_ITU 0x02
91 #define VP_VS_TYPE_VGATE_L 0x03
92 #define VP_VS_TYPE_RESERVED1 0x04
93 #define VP_VS_TYPE_RESERVED2 0x05
94 #define VP_VS_TYPE_F_ITU 0x06
95 #define VP_VS_TYPE_SC_FID 0x07
96
97 /* ------------------------------------------------------------------ */
98 /* data structs for video */
99
100 static int video_out[][9] = {
101 [CCIR656] = { 0x00, 0xb1, 0x00, 0xa1, 0x00, 0x04, 0x06, 0x00, 0x00 },
102 };
103
104 static struct saa7134_format formats[] = {
105 {
106 .name = "8 bpp gray",
107 .fourcc = V4L2_PIX_FMT_GREY,
108 .depth = 8,
109 .pm = 0x06,
110 },{
111 .name = "15 bpp RGB, le",
112 .fourcc = V4L2_PIX_FMT_RGB555,
113 .depth = 16,
114 .pm = 0x13 | 0x80,
115 },{
116 .name = "15 bpp RGB, be",
117 .fourcc = V4L2_PIX_FMT_RGB555X,
118 .depth = 16,
119 .pm = 0x13 | 0x80,
120 .bswap = 1,
121 },{
122 .name = "16 bpp RGB, le",
123 .fourcc = V4L2_PIX_FMT_RGB565,
124 .depth = 16,
125 .pm = 0x10 | 0x80,
126 },{
127 .name = "16 bpp RGB, be",
128 .fourcc = V4L2_PIX_FMT_RGB565X,
129 .depth = 16,
130 .pm = 0x10 | 0x80,
131 .bswap = 1,
132 },{
133 .name = "24 bpp RGB, le",
134 .fourcc = V4L2_PIX_FMT_BGR24,
135 .depth = 24,
136 .pm = 0x11,
137 },{
138 .name = "24 bpp RGB, be",
139 .fourcc = V4L2_PIX_FMT_RGB24,
140 .depth = 24,
141 .pm = 0x11,
142 .bswap = 1,
143 },{
144 .name = "32 bpp RGB, le",
145 .fourcc = V4L2_PIX_FMT_BGR32,
146 .depth = 32,
147 .pm = 0x12,
148 },{
149 .name = "32 bpp RGB, be",
150 .fourcc = V4L2_PIX_FMT_RGB32,
151 .depth = 32,
152 .pm = 0x12,
153 .bswap = 1,
154 .wswap = 1,
155 },{
156 .name = "4:2:2 packed, YUYV",
157 .fourcc = V4L2_PIX_FMT_YUYV,
158 .depth = 16,
159 .pm = 0x00,
160 .bswap = 1,
161 .yuv = 1,
162 },{
163 .name = "4:2:2 packed, UYVY",
164 .fourcc = V4L2_PIX_FMT_UYVY,
165 .depth = 16,
166 .pm = 0x00,
167 .yuv = 1,
168 },{
169 .name = "4:2:2 planar, Y-Cb-Cr",
170 .fourcc = V4L2_PIX_FMT_YUV422P,
171 .depth = 16,
172 .pm = 0x09,
173 .yuv = 1,
174 .planar = 1,
175 .hshift = 1,
176 .vshift = 0,
177 },{
178 .name = "4:2:0 planar, Y-Cb-Cr",
179 .fourcc = V4L2_PIX_FMT_YUV420,
180 .depth = 12,
181 .pm = 0x0a,
182 .yuv = 1,
183 .planar = 1,
184 .hshift = 1,
185 .vshift = 1,
186 },{
187 .name = "4:2:0 planar, Y-Cb-Cr",
188 .fourcc = V4L2_PIX_FMT_YVU420,
189 .depth = 12,
190 .pm = 0x0a,
191 .yuv = 1,
192 .planar = 1,
193 .uvswap = 1,
194 .hshift = 1,
195 .vshift = 1,
196 }
197 };
198 #define FORMATS ARRAY_SIZE(formats)
199
200 #define NORM_625_50 \
201 .h_start = 0, \
202 .h_stop = 719, \
203 .video_v_start = 24, \
204 .video_v_stop = 311, \
205 .vbi_v_start_0 = 7, \
206 .vbi_v_stop_0 = 23, \
207 .vbi_v_start_1 = 319, \
208 .src_timing = 4
209
210 #define NORM_525_60 \
211 .h_start = 0, \
212 .h_stop = 719, \
213 .video_v_start = 23, \
214 .video_v_stop = 262, \
215 .vbi_v_start_0 = 10, \
216 .vbi_v_stop_0 = 21, \
217 .vbi_v_start_1 = 273, \
218 .src_timing = 7
219
220 static struct saa7134_tvnorm tvnorms[] = {
221 {
222 .name = "PAL", /* autodetect */
223 .id = V4L2_STD_PAL,
224 NORM_625_50,
225
226 .sync_control = 0x18,
227 .luma_control = 0x40,
228 .chroma_ctrl1 = 0x81,
229 .chroma_gain = 0x2a,
230 .chroma_ctrl2 = 0x06,
231 .vgate_misc = 0x1c,
232
233 },{
234 .name = "PAL-BG",
235 .id = V4L2_STD_PAL_BG,
236 NORM_625_50,
237
238 .sync_control = 0x18,
239 .luma_control = 0x40,
240 .chroma_ctrl1 = 0x81,
241 .chroma_gain = 0x2a,
242 .chroma_ctrl2 = 0x06,
243 .vgate_misc = 0x1c,
244
245 },{
246 .name = "PAL-I",
247 .id = V4L2_STD_PAL_I,
248 NORM_625_50,
249
250 .sync_control = 0x18,
251 .luma_control = 0x40,
252 .chroma_ctrl1 = 0x81,
253 .chroma_gain = 0x2a,
254 .chroma_ctrl2 = 0x06,
255 .vgate_misc = 0x1c,
256
257 },{
258 .name = "PAL-DK",
259 .id = V4L2_STD_PAL_DK,
260 NORM_625_50,
261
262 .sync_control = 0x18,
263 .luma_control = 0x40,
264 .chroma_ctrl1 = 0x81,
265 .chroma_gain = 0x2a,
266 .chroma_ctrl2 = 0x06,
267 .vgate_misc = 0x1c,
268
269 },{
270 .name = "NTSC",
271 .id = V4L2_STD_NTSC,
272 NORM_525_60,
273
274 .sync_control = 0x59,
275 .luma_control = 0x40,
276 .chroma_ctrl1 = 0x89,
277 .chroma_gain = 0x2a,
278 .chroma_ctrl2 = 0x0e,
279 .vgate_misc = 0x18,
280
281 },{
282 .name = "SECAM",
283 .id = V4L2_STD_SECAM,
284 NORM_625_50,
285
286 .sync_control = 0x18,
287 .luma_control = 0x1b,
288 .chroma_ctrl1 = 0xd1,
289 .chroma_gain = 0x80,
290 .chroma_ctrl2 = 0x00,
291 .vgate_misc = 0x1c,
292
293 },{
294 .name = "SECAM-DK",
295 .id = V4L2_STD_SECAM_DK,
296 NORM_625_50,
297
298 .sync_control = 0x18,
299 .luma_control = 0x1b,
300 .chroma_ctrl1 = 0xd1,
301 .chroma_gain = 0x80,
302 .chroma_ctrl2 = 0x00,
303 .vgate_misc = 0x1c,
304
305 },{
306 .name = "SECAM-L",
307 .id = V4L2_STD_SECAM_L,
308 NORM_625_50,
309
310 .sync_control = 0x18,
311 .luma_control = 0x1b,
312 .chroma_ctrl1 = 0xd1,
313 .chroma_gain = 0x80,
314 .chroma_ctrl2 = 0x00,
315 .vgate_misc = 0x1c,
316
317 },{
318 .name = "SECAM-Lc",
319 .id = V4L2_STD_SECAM_LC,
320 NORM_625_50,
321
322 .sync_control = 0x18,
323 .luma_control = 0x1b,
324 .chroma_ctrl1 = 0xd1,
325 .chroma_gain = 0x80,
326 .chroma_ctrl2 = 0x00,
327 .vgate_misc = 0x1c,
328
329 },{
330 .name = "PAL-M",
331 .id = V4L2_STD_PAL_M,
332 NORM_525_60,
333
334 .sync_control = 0x59,
335 .luma_control = 0x40,
336 .chroma_ctrl1 = 0xb9,
337 .chroma_gain = 0x2a,
338 .chroma_ctrl2 = 0x0e,
339 .vgate_misc = 0x18,
340
341 },{
342 .name = "PAL-Nc",
343 .id = V4L2_STD_PAL_Nc,
344 NORM_625_50,
345
346 .sync_control = 0x18,
347 .luma_control = 0x40,
348 .chroma_ctrl1 = 0xa1,
349 .chroma_gain = 0x2a,
350 .chroma_ctrl2 = 0x06,
351 .vgate_misc = 0x1c,
352
353 },{
354 .name = "PAL-60",
355 .id = V4L2_STD_PAL_60,
356
357 .h_start = 0,
358 .h_stop = 719,
359 .video_v_start = 23,
360 .video_v_stop = 262,
361 .vbi_v_start_0 = 10,
362 .vbi_v_stop_0 = 21,
363 .vbi_v_start_1 = 273,
364 .src_timing = 7,
365
366 .sync_control = 0x18,
367 .luma_control = 0x40,
368 .chroma_ctrl1 = 0x81,
369 .chroma_gain = 0x2a,
370 .chroma_ctrl2 = 0x06,
371 .vgate_misc = 0x1c,
372 }
373 };
374 #define TVNORMS ARRAY_SIZE(tvnorms)
375
376 static struct saa7134_format* format_by_fourcc(unsigned int fourcc)
377 {
378 unsigned int i;
379
380 for (i = 0; i < FORMATS; i++)
381 if (formats[i].fourcc == fourcc)
382 return formats+i;
383 return NULL;
384 }
385
386 /* ------------------------------------------------------------------ */
387
388 static void set_tvnorm(struct saa7134_dev *dev, struct saa7134_tvnorm *norm)
389 {
390 video_dbg("set tv norm = %s\n", norm->name);
391 dev->tvnorm = norm;
392
393 /* setup cropping */
394 dev->crop_bounds.left = norm->h_start;
395 dev->crop_defrect.left = norm->h_start;
396 dev->crop_bounds.width = norm->h_stop - norm->h_start +1;
397 dev->crop_defrect.width = norm->h_stop - norm->h_start +1;
398
399 dev->crop_bounds.top = (norm->vbi_v_stop_0+1)*2;
400 dev->crop_defrect.top = norm->video_v_start*2;
401 dev->crop_bounds.height = ((norm->id & V4L2_STD_525_60) ? 524 : 624)
402 - dev->crop_bounds.top;
403 dev->crop_defrect.height = (norm->video_v_stop - norm->video_v_start +1)*2;
404
405 dev->crop_current = dev->crop_defrect;
406
407 saa7134_set_tvnorm_hw(dev);
408 }
409
410 static void video_mux(struct saa7134_dev *dev, int input)
411 {
412 video_dbg("video input = %d [%s]\n",
413 input, saa7134_input_name[card_in(dev, input).type]);
414 dev->ctl_input = input;
415 set_tvnorm(dev, dev->tvnorm);
416 saa7134_tvaudio_setinput(dev, &card_in(dev, input));
417 }
418
419
420 static void saa7134_set_decoder(struct saa7134_dev *dev)
421 {
422 int luma_control, sync_control, chroma_ctrl1, mux;
423
424 struct saa7134_tvnorm *norm = dev->tvnorm;
425 mux = card_in(dev, dev->ctl_input).vmux;
426
427 luma_control = norm->luma_control;
428 sync_control = norm->sync_control;
429 chroma_ctrl1 = norm->chroma_ctrl1;
430
431 if (mux > 5)
432 luma_control |= 0x80; /* svideo */
433 if (noninterlaced || dev->nosignal)
434 sync_control |= 0x20;
435
436 /* switch on auto standard detection */
437 sync_control |= SAA7134_SYNC_CTRL_AUFD;
438 chroma_ctrl1 |= SAA7134_CHROMA_CTRL1_AUTO0;
439 chroma_ctrl1 &= ~SAA7134_CHROMA_CTRL1_FCTC;
440 luma_control &= ~SAA7134_LUMA_CTRL_LDEL;
441
442 /* setup video decoder */
443 saa_writeb(SAA7134_INCR_DELAY, 0x08);
444 saa_writeb(SAA7134_ANALOG_IN_CTRL1, 0xc0 | mux);
445 saa_writeb(SAA7134_ANALOG_IN_CTRL2, 0x00);
446
447 saa_writeb(SAA7134_ANALOG_IN_CTRL3, 0x90);
448 saa_writeb(SAA7134_ANALOG_IN_CTRL4, 0x90);
449 saa_writeb(SAA7134_HSYNC_START, 0xeb);
450 saa_writeb(SAA7134_HSYNC_STOP, 0xe0);
451 saa_writeb(SAA7134_SOURCE_TIMING1, norm->src_timing);
452
453 saa_writeb(SAA7134_SYNC_CTRL, sync_control);
454 saa_writeb(SAA7134_LUMA_CTRL, luma_control);
455 saa_writeb(SAA7134_DEC_LUMA_BRIGHT, dev->ctl_bright);
456
457 saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
458 dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
459
460 saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
461 dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
462
463 saa_writeb(SAA7134_DEC_CHROMA_HUE, dev->ctl_hue);
464 saa_writeb(SAA7134_CHROMA_CTRL1, chroma_ctrl1);
465 saa_writeb(SAA7134_CHROMA_GAIN, norm->chroma_gain);
466
467 saa_writeb(SAA7134_CHROMA_CTRL2, norm->chroma_ctrl2);
468 saa_writeb(SAA7134_MODE_DELAY_CTRL, 0x00);
469
470 saa_writeb(SAA7134_ANALOG_ADC, 0x01);
471 saa_writeb(SAA7134_VGATE_START, 0x11);
472 saa_writeb(SAA7134_VGATE_STOP, 0xfe);
473 saa_writeb(SAA7134_MISC_VGATE_MSB, norm->vgate_misc);
474 saa_writeb(SAA7134_RAW_DATA_GAIN, 0x40);
475 saa_writeb(SAA7134_RAW_DATA_OFFSET, 0x80);
476 }
477
478 void saa7134_set_tvnorm_hw(struct saa7134_dev *dev)
479 {
480 saa7134_set_decoder(dev);
481
482 saa_call_all(dev, video, s_std, dev->tvnorm->id);
483 /* Set the correct norm for the saa6752hs. This function
484 does nothing if there is no saa6752hs. */
485 saa_call_empress(dev, video, s_std, dev->tvnorm->id);
486 }
487
488 static void set_h_prescale(struct saa7134_dev *dev, int task, int prescale)
489 {
490 static const struct {
491 int xpsc;
492 int xacl;
493 int xc2_1;
494 int xdcg;
495 int vpfy;
496 } vals[] = {
497 /* XPSC XACL XC2_1 XDCG VPFY */
498 { 1, 0, 0, 0, 0 },
499 { 2, 2, 1, 2, 2 },
500 { 3, 4, 1, 3, 2 },
501 { 4, 8, 1, 4, 2 },
502 { 5, 8, 1, 4, 2 },
503 { 6, 8, 1, 4, 3 },
504 { 7, 8, 1, 4, 3 },
505 { 8, 15, 0, 4, 3 },
506 { 9, 15, 0, 4, 3 },
507 { 10, 16, 1, 5, 3 },
508 };
509 static const int count = ARRAY_SIZE(vals);
510 int i;
511
512 for (i = 0; i < count; i++)
513 if (vals[i].xpsc == prescale)
514 break;
515 if (i == count)
516 return;
517
518 saa_writeb(SAA7134_H_PRESCALE(task), vals[i].xpsc);
519 saa_writeb(SAA7134_ACC_LENGTH(task), vals[i].xacl);
520 saa_writeb(SAA7134_LEVEL_CTRL(task),
521 (vals[i].xc2_1 << 3) | (vals[i].xdcg));
522 saa_andorb(SAA7134_FIR_PREFILTER_CTRL(task), 0x0f,
523 (vals[i].vpfy << 2) | vals[i].vpfy);
524 }
525
526 static void set_v_scale(struct saa7134_dev *dev, int task, int yscale)
527 {
528 int val,mirror;
529
530 saa_writeb(SAA7134_V_SCALE_RATIO1(task), yscale & 0xff);
531 saa_writeb(SAA7134_V_SCALE_RATIO2(task), yscale >> 8);
532
533 mirror = (dev->ctl_mirror) ? 0x02 : 0x00;
534 if (yscale < 2048) {
535 /* LPI */
536 video_dbg("yscale LPI yscale=%d\n", yscale);
537 saa_writeb(SAA7134_V_FILTER(task), 0x00 | mirror);
538 saa_writeb(SAA7134_LUMA_CONTRAST(task), 0x40);
539 saa_writeb(SAA7134_CHROMA_SATURATION(task), 0x40);
540 } else {
541 /* ACM */
542 val = 0x40 * 1024 / yscale;
543 video_dbg("yscale ACM yscale=%d val=0x%x\n", yscale, val);
544 saa_writeb(SAA7134_V_FILTER(task), 0x01 | mirror);
545 saa_writeb(SAA7134_LUMA_CONTRAST(task), val);
546 saa_writeb(SAA7134_CHROMA_SATURATION(task), val);
547 }
548 saa_writeb(SAA7134_LUMA_BRIGHT(task), 0x80);
549 }
550
551 static void set_size(struct saa7134_dev *dev, int task,
552 int width, int height, int interlace)
553 {
554 int prescale,xscale,yscale,y_even,y_odd;
555 int h_start, h_stop, v_start, v_stop;
556 int div = interlace ? 2 : 1;
557
558 /* setup video scaler */
559 h_start = dev->crop_current.left;
560 v_start = dev->crop_current.top/2;
561 h_stop = (dev->crop_current.left + dev->crop_current.width -1);
562 v_stop = (dev->crop_current.top + dev->crop_current.height -1)/2;
563
564 saa_writeb(SAA7134_VIDEO_H_START1(task), h_start & 0xff);
565 saa_writeb(SAA7134_VIDEO_H_START2(task), h_start >> 8);
566 saa_writeb(SAA7134_VIDEO_H_STOP1(task), h_stop & 0xff);
567 saa_writeb(SAA7134_VIDEO_H_STOP2(task), h_stop >> 8);
568 saa_writeb(SAA7134_VIDEO_V_START1(task), v_start & 0xff);
569 saa_writeb(SAA7134_VIDEO_V_START2(task), v_start >> 8);
570 saa_writeb(SAA7134_VIDEO_V_STOP1(task), v_stop & 0xff);
571 saa_writeb(SAA7134_VIDEO_V_STOP2(task), v_stop >> 8);
572
573 prescale = dev->crop_current.width / width;
574 if (0 == prescale)
575 prescale = 1;
576 xscale = 1024 * dev->crop_current.width / prescale / width;
577 yscale = 512 * div * dev->crop_current.height / height;
578 video_dbg("prescale=%d xscale=%d yscale=%d\n",
579 prescale, xscale, yscale);
580 set_h_prescale(dev,task,prescale);
581 saa_writeb(SAA7134_H_SCALE_INC1(task), xscale & 0xff);
582 saa_writeb(SAA7134_H_SCALE_INC2(task), xscale >> 8);
583 set_v_scale(dev,task,yscale);
584
585 saa_writeb(SAA7134_VIDEO_PIXELS1(task), width & 0xff);
586 saa_writeb(SAA7134_VIDEO_PIXELS2(task), width >> 8);
587 saa_writeb(SAA7134_VIDEO_LINES1(task), height/div & 0xff);
588 saa_writeb(SAA7134_VIDEO_LINES2(task), height/div >> 8);
589
590 /* deinterlace y offsets */
591 y_odd = dev->ctl_y_odd;
592 y_even = dev->ctl_y_even;
593 saa_writeb(SAA7134_V_PHASE_OFFSET0(task), y_odd);
594 saa_writeb(SAA7134_V_PHASE_OFFSET1(task), y_even);
595 saa_writeb(SAA7134_V_PHASE_OFFSET2(task), y_odd);
596 saa_writeb(SAA7134_V_PHASE_OFFSET3(task), y_even);
597 }
598
599 /* ------------------------------------------------------------------ */
600
601 struct cliplist {
602 __u16 position;
603 __u8 enable;
604 __u8 disable;
605 };
606
607 static void set_cliplist(struct saa7134_dev *dev, int reg,
608 struct cliplist *cl, int entries, char *name)
609 {
610 __u8 winbits = 0;
611 int i;
612
613 for (i = 0; i < entries; i++) {
614 winbits |= cl[i].enable;
615 winbits &= ~cl[i].disable;
616 if (i < 15 && cl[i].position == cl[i+1].position)
617 continue;
618 saa_writeb(reg + 0, winbits);
619 saa_writeb(reg + 2, cl[i].position & 0xff);
620 saa_writeb(reg + 3, cl[i].position >> 8);
621 video_dbg("clip: %s winbits=%02x pos=%d\n",
622 name,winbits,cl[i].position);
623 reg += 8;
624 }
625 for (; reg < 0x400; reg += 8) {
626 saa_writeb(reg+ 0, 0);
627 saa_writeb(reg + 1, 0);
628 saa_writeb(reg + 2, 0);
629 saa_writeb(reg + 3, 0);
630 }
631 }
632
633 static int clip_range(int val)
634 {
635 if (val < 0)
636 val = 0;
637 return val;
638 }
639
640 /* Sort into smallest position first order */
641 static int cliplist_cmp(const void *a, const void *b)
642 {
643 const struct cliplist *cla = a;
644 const struct cliplist *clb = b;
645 if (cla->position < clb->position)
646 return -1;
647 if (cla->position > clb->position)
648 return 1;
649 return 0;
650 }
651
652 static int setup_clipping(struct saa7134_dev *dev, struct v4l2_clip *clips,
653 int nclips, int interlace)
654 {
655 struct cliplist col[16], row[16];
656 int cols = 0, rows = 0, i;
657 int div = interlace ? 2 : 1;
658
659 memset(col, 0, sizeof(col));
660 memset(row, 0, sizeof(row));
661 for (i = 0; i < nclips && i < 8; i++) {
662 col[cols].position = clip_range(clips[i].c.left);
663 col[cols].enable = (1 << i);
664 cols++;
665 col[cols].position = clip_range(clips[i].c.left+clips[i].c.width);
666 col[cols].disable = (1 << i);
667 cols++;
668 row[rows].position = clip_range(clips[i].c.top / div);
669 row[rows].enable = (1 << i);
670 rows++;
671 row[rows].position = clip_range((clips[i].c.top + clips[i].c.height)
672 / div);
673 row[rows].disable = (1 << i);
674 rows++;
675 }
676 sort(col, cols, sizeof col[0], cliplist_cmp, NULL);
677 sort(row, rows, sizeof row[0], cliplist_cmp, NULL);
678 set_cliplist(dev,0x380,col,cols,"cols");
679 set_cliplist(dev,0x384,row,rows,"rows");
680 return 0;
681 }
682
683 static int verify_preview(struct saa7134_dev *dev, struct v4l2_window *win, bool try)
684 {
685 enum v4l2_field field;
686 int maxw, maxh;
687
688 if (!try && (dev->ovbuf.base == NULL || dev->ovfmt == NULL))
689 return -EINVAL;
690 if (win->w.width < 48)
691 win->w.width = 48;
692 if (win->w.height < 32)
693 win->w.height = 32;
694 if (win->clipcount > 8)
695 win->clipcount = 8;
696
697 win->chromakey = 0;
698 win->global_alpha = 0;
699 field = win->field;
700 maxw = dev->crop_current.width;
701 maxh = dev->crop_current.height;
702
703 if (V4L2_FIELD_ANY == field) {
704 field = (win->w.height > maxh/2)
705 ? V4L2_FIELD_INTERLACED
706 : V4L2_FIELD_TOP;
707 }
708 switch (field) {
709 case V4L2_FIELD_TOP:
710 case V4L2_FIELD_BOTTOM:
711 maxh = maxh / 2;
712 break;
713 default:
714 field = V4L2_FIELD_INTERLACED;
715 break;
716 }
717
718 win->field = field;
719 if (win->w.width > maxw)
720 win->w.width = maxw;
721 if (win->w.height > maxh)
722 win->w.height = maxh;
723 return 0;
724 }
725
726 static int start_preview(struct saa7134_dev *dev)
727 {
728 unsigned long base,control,bpl;
729 int err;
730
731 err = verify_preview(dev, &dev->win, false);
732 if (0 != err)
733 return err;
734
735 dev->ovfield = dev->win.field;
736 video_dbg("start_preview %dx%d+%d+%d %s field=%s\n",
737 dev->win.w.width, dev->win.w.height,
738 dev->win.w.left, dev->win.w.top,
739 dev->ovfmt->name, v4l2_field_names[dev->ovfield]);
740
741 /* setup window + clipping */
742 set_size(dev, TASK_B, dev->win.w.width, dev->win.w.height,
743 V4L2_FIELD_HAS_BOTH(dev->ovfield));
744 setup_clipping(dev, dev->clips, dev->nclips,
745 V4L2_FIELD_HAS_BOTH(dev->ovfield));
746 if (dev->ovfmt->yuv)
747 saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x03);
748 else
749 saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x01);
750 saa_writeb(SAA7134_OFMT_VIDEO_B, dev->ovfmt->pm | 0x20);
751
752 /* dma: setup channel 1 (= Video Task B) */
753 base = (unsigned long)dev->ovbuf.base;
754 base += dev->ovbuf.fmt.bytesperline * dev->win.w.top;
755 base += dev->ovfmt->depth/8 * dev->win.w.left;
756 bpl = dev->ovbuf.fmt.bytesperline;
757 control = SAA7134_RS_CONTROL_BURST_16;
758 if (dev->ovfmt->bswap)
759 control |= SAA7134_RS_CONTROL_BSWAP;
760 if (dev->ovfmt->wswap)
761 control |= SAA7134_RS_CONTROL_WSWAP;
762 if (V4L2_FIELD_HAS_BOTH(dev->ovfield)) {
763 saa_writel(SAA7134_RS_BA1(1),base);
764 saa_writel(SAA7134_RS_BA2(1),base+bpl);
765 saa_writel(SAA7134_RS_PITCH(1),bpl*2);
766 saa_writel(SAA7134_RS_CONTROL(1),control);
767 } else {
768 saa_writel(SAA7134_RS_BA1(1),base);
769 saa_writel(SAA7134_RS_BA2(1),base);
770 saa_writel(SAA7134_RS_PITCH(1),bpl);
771 saa_writel(SAA7134_RS_CONTROL(1),control);
772 }
773
774 /* start dma */
775 dev->ovenable = 1;
776 saa7134_set_dmabits(dev);
777
778 return 0;
779 }
780
781 static int stop_preview(struct saa7134_dev *dev)
782 {
783 dev->ovenable = 0;
784 saa7134_set_dmabits(dev);
785 return 0;
786 }
787
788 /*
789 * Media Controller helper functions
790 */
791
792 static int saa7134_enable_analog_tuner(struct saa7134_dev *dev)
793 {
794 #ifdef CONFIG_MEDIA_CONTROLLER
795 struct media_device *mdev = dev->media_dev;
796 struct media_entity *source;
797 struct media_link *link, *found_link = NULL;
798 int ret, active_links = 0;
799
800 if (!mdev || !dev->decoder)
801 return 0;
802
803 /*
804 * This will find the tuner that is connected into the decoder.
805 * Technically, this is not 100% correct, as the device may be
806 * using an analog input instead of the tuner. However, as we can't
807 * do DVB streaming while the DMA engine is being used for V4L2,
808 * this should be enough for the actual needs.
809 */
810 list_for_each_entry(link, &dev->decoder->links, list) {
811 if (link->sink->entity == dev->decoder) {
812 found_link = link;
813 if (link->flags & MEDIA_LNK_FL_ENABLED)
814 active_links++;
815 break;
816 }
817 }
818
819 if (active_links == 1 || !found_link)
820 return 0;
821
822 source = found_link->source->entity;
823 list_for_each_entry(link, &source->links, list) {
824 struct media_entity *sink;
825 int flags = 0;
826
827 sink = link->sink->entity;
828
829 if (sink == dev->decoder)
830 flags = MEDIA_LNK_FL_ENABLED;
831
832 ret = media_entity_setup_link(link, flags);
833 if (ret) {
834 pr_err("Couldn't change link %s->%s to %s. Error %d\n",
835 source->name, sink->name,
836 flags ? "enabled" : "disabled",
837 ret);
838 return ret;
839 }
840 }
841 #endif
842 return 0;
843 }
844
845 /* ------------------------------------------------------------------ */
846
847 static int buffer_activate(struct saa7134_dev *dev,
848 struct saa7134_buf *buf,
849 struct saa7134_buf *next)
850 {
851 struct saa7134_dmaqueue *dmaq = buf->vb2.vb2_buf.vb2_queue->drv_priv;
852 unsigned long base,control,bpl;
853 unsigned long bpl_uv,lines_uv,base2,base3,tmp; /* planar */
854
855 video_dbg("buffer_activate buf=%p\n", buf);
856 buf->top_seen = 0;
857
858 set_size(dev, TASK_A, dev->width, dev->height,
859 V4L2_FIELD_HAS_BOTH(dev->field));
860 if (dev->fmt->yuv)
861 saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x03);
862 else
863 saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x01);
864 saa_writeb(SAA7134_OFMT_VIDEO_A, dev->fmt->pm);
865
866 /* DMA: setup channel 0 (= Video Task A0) */
867 base = saa7134_buffer_base(buf);
868 if (dev->fmt->planar)
869 bpl = dev->width;
870 else
871 bpl = (dev->width * dev->fmt->depth) / 8;
872 control = SAA7134_RS_CONTROL_BURST_16 |
873 SAA7134_RS_CONTROL_ME |
874 (dmaq->pt.dma >> 12);
875 if (dev->fmt->bswap)
876 control |= SAA7134_RS_CONTROL_BSWAP;
877 if (dev->fmt->wswap)
878 control |= SAA7134_RS_CONTROL_WSWAP;
879 if (V4L2_FIELD_HAS_BOTH(dev->field)) {
880 /* interlaced */
881 saa_writel(SAA7134_RS_BA1(0),base);
882 saa_writel(SAA7134_RS_BA2(0),base+bpl);
883 saa_writel(SAA7134_RS_PITCH(0),bpl*2);
884 } else {
885 /* non-interlaced */
886 saa_writel(SAA7134_RS_BA1(0),base);
887 saa_writel(SAA7134_RS_BA2(0),base);
888 saa_writel(SAA7134_RS_PITCH(0),bpl);
889 }
890 saa_writel(SAA7134_RS_CONTROL(0),control);
891
892 if (dev->fmt->planar) {
893 /* DMA: setup channel 4+5 (= planar task A) */
894 bpl_uv = bpl >> dev->fmt->hshift;
895 lines_uv = dev->height >> dev->fmt->vshift;
896 base2 = base + bpl * dev->height;
897 base3 = base2 + bpl_uv * lines_uv;
898 if (dev->fmt->uvswap)
899 tmp = base2, base2 = base3, base3 = tmp;
900 video_dbg("uv: bpl=%ld lines=%ld base2/3=%ld/%ld\n",
901 bpl_uv,lines_uv,base2,base3);
902 if (V4L2_FIELD_HAS_BOTH(dev->field)) {
903 /* interlaced */
904 saa_writel(SAA7134_RS_BA1(4),base2);
905 saa_writel(SAA7134_RS_BA2(4),base2+bpl_uv);
906 saa_writel(SAA7134_RS_PITCH(4),bpl_uv*2);
907 saa_writel(SAA7134_RS_BA1(5),base3);
908 saa_writel(SAA7134_RS_BA2(5),base3+bpl_uv);
909 saa_writel(SAA7134_RS_PITCH(5),bpl_uv*2);
910 } else {
911 /* non-interlaced */
912 saa_writel(SAA7134_RS_BA1(4),base2);
913 saa_writel(SAA7134_RS_BA2(4),base2);
914 saa_writel(SAA7134_RS_PITCH(4),bpl_uv);
915 saa_writel(SAA7134_RS_BA1(5),base3);
916 saa_writel(SAA7134_RS_BA2(5),base3);
917 saa_writel(SAA7134_RS_PITCH(5),bpl_uv);
918 }
919 saa_writel(SAA7134_RS_CONTROL(4),control);
920 saa_writel(SAA7134_RS_CONTROL(5),control);
921 }
922
923 /* start DMA */
924 saa7134_set_dmabits(dev);
925 mod_timer(&dmaq->timeout, jiffies + BUFFER_TIMEOUT);
926 return 0;
927 }
928
929 static int buffer_init(struct vb2_buffer *vb2)
930 {
931 struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv;
932 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb2);
933 struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
934
935 dmaq->curr = NULL;
936 buf->activate = buffer_activate;
937 return 0;
938 }
939
940 static int buffer_prepare(struct vb2_buffer *vb2)
941 {
942 struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv;
943 struct saa7134_dev *dev = dmaq->dev;
944 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb2);
945 struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
946 struct sg_table *dma = vb2_dma_sg_plane_desc(vb2, 0);
947 unsigned int size;
948
949 if (dma->sgl->offset) {
950 pr_err("The buffer is not page-aligned\n");
951 return -EINVAL;
952 }
953 size = (dev->width * dev->height * dev->fmt->depth) >> 3;
954 if (vb2_plane_size(vb2, 0) < size)
955 return -EINVAL;
956
957 vb2_set_plane_payload(vb2, 0, size);
958 vbuf->field = dev->field;
959
960 return saa7134_pgtable_build(dev->pci, &dmaq->pt, dma->sgl, dma->nents,
961 saa7134_buffer_startpage(buf));
962 }
963
964 static int queue_setup(struct vb2_queue *q,
965 unsigned int *nbuffers, unsigned int *nplanes,
966 unsigned int sizes[], struct device *alloc_devs[])
967 {
968 struct saa7134_dmaqueue *dmaq = q->drv_priv;
969 struct saa7134_dev *dev = dmaq->dev;
970 int size = dev->fmt->depth * dev->width * dev->height >> 3;
971
972 if (dev->width < 48 ||
973 dev->height < 32 ||
974 dev->width/4 > dev->crop_current.width ||
975 dev->height/4 > dev->crop_current.height ||
976 dev->width > dev->crop_bounds.width ||
977 dev->height > dev->crop_bounds.height)
978 return -EINVAL;
979
980 *nbuffers = saa7134_buffer_count(size, *nbuffers);
981 *nplanes = 1;
982 sizes[0] = size;
983
984 saa7134_enable_analog_tuner(dev);
985
986 return 0;
987 }
988
989 /*
990 * move buffer to hardware queue
991 */
992 void saa7134_vb2_buffer_queue(struct vb2_buffer *vb)
993 {
994 struct saa7134_dmaqueue *dmaq = vb->vb2_queue->drv_priv;
995 struct saa7134_dev *dev = dmaq->dev;
996 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
997 struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
998
999 saa7134_buffer_queue(dev, dmaq, buf);
1000 }
1001 EXPORT_SYMBOL_GPL(saa7134_vb2_buffer_queue);
1002
1003 int saa7134_vb2_start_streaming(struct vb2_queue *vq, unsigned int count)
1004 {
1005 struct saa7134_dmaqueue *dmaq = vq->drv_priv;
1006 struct saa7134_dev *dev = dmaq->dev;
1007
1008 /*
1009 * Planar video capture and TS share the same DMA channel,
1010 * so only one can be active at a time.
1011 */
1012 if (card_is_empress(dev) && vb2_is_busy(&dev->empress_vbq) &&
1013 dmaq == &dev->video_q && dev->fmt->planar) {
1014 struct saa7134_buf *buf, *tmp;
1015
1016 list_for_each_entry_safe(buf, tmp, &dmaq->queue, entry) {
1017 list_del(&buf->entry);
1018 vb2_buffer_done(&buf->vb2.vb2_buf,
1019 VB2_BUF_STATE_QUEUED);
1020 }
1021 if (dmaq->curr) {
1022 vb2_buffer_done(&dmaq->curr->vb2.vb2_buf,
1023 VB2_BUF_STATE_QUEUED);
1024 dmaq->curr = NULL;
1025 }
1026 return -EBUSY;
1027 }
1028
1029 /* The SAA7134 has a 1K FIFO; the datasheet suggests that when
1030 * configured conservatively, there's 22 usec of buffering for video.
1031 * We therefore request a DMA latency of 20 usec, giving us 2 usec of
1032 * margin in case the FIFO is configured differently to the datasheet.
1033 * Unfortunately, I lack register-level documentation to check the
1034 * Linux FIFO setup and confirm the perfect value.
1035 */
1036 if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
1037 (dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
1038 pm_qos_add_request(&dev->qos_request,
1039 PM_QOS_CPU_DMA_LATENCY, 20);
1040 dmaq->seq_nr = 0;
1041
1042 return 0;
1043 }
1044
1045 void saa7134_vb2_stop_streaming(struct vb2_queue *vq)
1046 {
1047 struct saa7134_dmaqueue *dmaq = vq->drv_priv;
1048 struct saa7134_dev *dev = dmaq->dev;
1049
1050 saa7134_stop_streaming(dev, dmaq);
1051
1052 if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
1053 (dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
1054 pm_qos_remove_request(&dev->qos_request);
1055 }
1056
1057 static struct vb2_ops vb2_qops = {
1058 .queue_setup = queue_setup,
1059 .buf_init = buffer_init,
1060 .buf_prepare = buffer_prepare,
1061 .buf_queue = saa7134_vb2_buffer_queue,
1062 .wait_prepare = vb2_ops_wait_prepare,
1063 .wait_finish = vb2_ops_wait_finish,
1064 .start_streaming = saa7134_vb2_start_streaming,
1065 .stop_streaming = saa7134_vb2_stop_streaming,
1066 };
1067
1068 /* ------------------------------------------------------------------ */
1069
1070 static int saa7134_s_ctrl(struct v4l2_ctrl *ctrl)
1071 {
1072 struct saa7134_dev *dev = container_of(ctrl->handler, struct saa7134_dev, ctrl_handler);
1073 unsigned long flags;
1074 int restart_overlay = 0;
1075
1076 switch (ctrl->id) {
1077 case V4L2_CID_BRIGHTNESS:
1078 dev->ctl_bright = ctrl->val;
1079 saa_writeb(SAA7134_DEC_LUMA_BRIGHT, ctrl->val);
1080 break;
1081 case V4L2_CID_HUE:
1082 dev->ctl_hue = ctrl->val;
1083 saa_writeb(SAA7134_DEC_CHROMA_HUE, ctrl->val);
1084 break;
1085 case V4L2_CID_CONTRAST:
1086 dev->ctl_contrast = ctrl->val;
1087 saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
1088 dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
1089 break;
1090 case V4L2_CID_SATURATION:
1091 dev->ctl_saturation = ctrl->val;
1092 saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
1093 dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
1094 break;
1095 case V4L2_CID_AUDIO_MUTE:
1096 dev->ctl_mute = ctrl->val;
1097 saa7134_tvaudio_setmute(dev);
1098 break;
1099 case V4L2_CID_AUDIO_VOLUME:
1100 dev->ctl_volume = ctrl->val;
1101 saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
1102 break;
1103 case V4L2_CID_PRIVATE_INVERT:
1104 dev->ctl_invert = ctrl->val;
1105 saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
1106 dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
1107 saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
1108 dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
1109 break;
1110 case V4L2_CID_HFLIP:
1111 dev->ctl_mirror = ctrl->val;
1112 restart_overlay = 1;
1113 break;
1114 case V4L2_CID_PRIVATE_Y_EVEN:
1115 dev->ctl_y_even = ctrl->val;
1116 restart_overlay = 1;
1117 break;
1118 case V4L2_CID_PRIVATE_Y_ODD:
1119 dev->ctl_y_odd = ctrl->val;
1120 restart_overlay = 1;
1121 break;
1122 case V4L2_CID_PRIVATE_AUTOMUTE:
1123 {
1124 struct v4l2_priv_tun_config tda9887_cfg;
1125
1126 tda9887_cfg.tuner = TUNER_TDA9887;
1127 tda9887_cfg.priv = &dev->tda9887_conf;
1128
1129 dev->ctl_automute = ctrl->val;
1130 if (dev->tda9887_conf) {
1131 if (dev->ctl_automute)
1132 dev->tda9887_conf |= TDA9887_AUTOMUTE;
1133 else
1134 dev->tda9887_conf &= ~TDA9887_AUTOMUTE;
1135
1136 saa_call_all(dev, tuner, s_config, &tda9887_cfg);
1137 }
1138 break;
1139 }
1140 default:
1141 return -EINVAL;
1142 }
1143 if (restart_overlay && dev->overlay_owner) {
1144 spin_lock_irqsave(&dev->slock, flags);
1145 stop_preview(dev);
1146 start_preview(dev);
1147 spin_unlock_irqrestore(&dev->slock, flags);
1148 }
1149 return 0;
1150 }
1151
1152 /* ------------------------------------------------------------------ */
1153
1154 static int video_open(struct file *file)
1155 {
1156 struct video_device *vdev = video_devdata(file);
1157 struct saa7134_dev *dev = video_drvdata(file);
1158 int ret = v4l2_fh_open(file);
1159
1160 if (ret < 0)
1161 return ret;
1162
1163 mutex_lock(&dev->lock);
1164 if (vdev->vfl_type == VFL_TYPE_RADIO) {
1165 /* switch to radio mode */
1166 saa7134_tvaudio_setinput(dev, &card(dev).radio);
1167 saa_call_all(dev, tuner, s_radio);
1168 } else {
1169 /* switch to video/vbi mode */
1170 video_mux(dev, dev->ctl_input);
1171 }
1172 mutex_unlock(&dev->lock);
1173
1174 return 0;
1175 }
1176
1177 static int video_release(struct file *file)
1178 {
1179 struct video_device *vdev = video_devdata(file);
1180 struct saa7134_dev *dev = video_drvdata(file);
1181 struct v4l2_fh *fh = file->private_data;
1182 struct saa6588_command cmd;
1183 unsigned long flags;
1184
1185 mutex_lock(&dev->lock);
1186 saa7134_tvaudio_close(dev);
1187
1188 /* turn off overlay */
1189 if (fh == dev->overlay_owner) {
1190 spin_lock_irqsave(&dev->slock,flags);
1191 stop_preview(dev);
1192 spin_unlock_irqrestore(&dev->slock,flags);
1193 dev->overlay_owner = NULL;
1194 }
1195
1196 if (vdev->vfl_type == VFL_TYPE_RADIO)
1197 v4l2_fh_release(file);
1198 else
1199 _vb2_fop_release(file, NULL);
1200
1201 /* ts-capture will not work in planar mode, so turn it off Hac: 04.05*/
1202 saa_andorb(SAA7134_OFMT_VIDEO_A, 0x1f, 0);
1203 saa_andorb(SAA7134_OFMT_VIDEO_B, 0x1f, 0);
1204 saa_andorb(SAA7134_OFMT_DATA_A, 0x1f, 0);
1205 saa_andorb(SAA7134_OFMT_DATA_B, 0x1f, 0);
1206
1207 saa_call_all(dev, core, s_power, 0);
1208 if (vdev->vfl_type == VFL_TYPE_RADIO)
1209 saa_call_all(dev, core, ioctl, SAA6588_CMD_CLOSE, &cmd);
1210 mutex_unlock(&dev->lock);
1211
1212 return 0;
1213 }
1214
1215 static ssize_t radio_read(struct file *file, char __user *data,
1216 size_t count, loff_t *ppos)
1217 {
1218 struct saa7134_dev *dev = video_drvdata(file);
1219 struct saa6588_command cmd;
1220
1221 cmd.block_count = count/3;
1222 cmd.nonblocking = file->f_flags & O_NONBLOCK;
1223 cmd.buffer = data;
1224 cmd.instance = file;
1225 cmd.result = -ENODEV;
1226
1227 mutex_lock(&dev->lock);
1228 saa_call_all(dev, core, ioctl, SAA6588_CMD_READ, &cmd);
1229 mutex_unlock(&dev->lock);
1230
1231 return cmd.result;
1232 }
1233
1234 static unsigned int radio_poll(struct file *file, poll_table *wait)
1235 {
1236 struct saa7134_dev *dev = video_drvdata(file);
1237 struct saa6588_command cmd;
1238 unsigned int rc = v4l2_ctrl_poll(file, wait);
1239
1240 cmd.instance = file;
1241 cmd.event_list = wait;
1242 cmd.result = 0;
1243 mutex_lock(&dev->lock);
1244 saa_call_all(dev, core, ioctl, SAA6588_CMD_POLL, &cmd);
1245 mutex_unlock(&dev->lock);
1246
1247 return rc | cmd.result;
1248 }
1249
1250 /* ------------------------------------------------------------------ */
1251
1252 static int saa7134_try_get_set_fmt_vbi_cap(struct file *file, void *priv,
1253 struct v4l2_format *f)
1254 {
1255 struct saa7134_dev *dev = video_drvdata(file);
1256 struct saa7134_tvnorm *norm = dev->tvnorm;
1257
1258 memset(&f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1259 f->fmt.vbi.sampling_rate = 6750000 * 4;
1260 f->fmt.vbi.samples_per_line = 2048 /* VBI_LINE_LENGTH */;
1261 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1262 f->fmt.vbi.offset = 64 * 4;
1263 f->fmt.vbi.start[0] = norm->vbi_v_start_0;
1264 f->fmt.vbi.count[0] = norm->vbi_v_stop_0 - norm->vbi_v_start_0 +1;
1265 f->fmt.vbi.start[1] = norm->vbi_v_start_1;
1266 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1267 f->fmt.vbi.flags = 0; /* VBI_UNSYNC VBI_INTERLACED */
1268
1269 return 0;
1270 }
1271
1272 static int saa7134_g_fmt_vid_cap(struct file *file, void *priv,
1273 struct v4l2_format *f)
1274 {
1275 struct saa7134_dev *dev = video_drvdata(file);
1276
1277 f->fmt.pix.width = dev->width;
1278 f->fmt.pix.height = dev->height;
1279 f->fmt.pix.field = dev->field;
1280 f->fmt.pix.pixelformat = dev->fmt->fourcc;
1281 if (dev->fmt->planar)
1282 f->fmt.pix.bytesperline = f->fmt.pix.width;
1283 else
1284 f->fmt.pix.bytesperline =
1285 (f->fmt.pix.width * dev->fmt->depth) / 8;
1286 f->fmt.pix.sizeimage =
1287 (f->fmt.pix.height * f->fmt.pix.width * dev->fmt->depth) / 8;
1288 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1289 return 0;
1290 }
1291
1292 static int saa7134_g_fmt_vid_overlay(struct file *file, void *priv,
1293 struct v4l2_format *f)
1294 {
1295 struct saa7134_dev *dev = video_drvdata(file);
1296 struct v4l2_clip __user *clips = f->fmt.win.clips;
1297 u32 clipcount = f->fmt.win.clipcount;
1298 int err = 0;
1299 int i;
1300
1301 if (saa7134_no_overlay > 0) {
1302 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1303 return -EINVAL;
1304 }
1305 f->fmt.win = dev->win;
1306 f->fmt.win.clips = clips;
1307 if (clips == NULL)
1308 clipcount = 0;
1309 if (dev->nclips < clipcount)
1310 clipcount = dev->nclips;
1311 f->fmt.win.clipcount = clipcount;
1312
1313 for (i = 0; !err && i < clipcount; i++) {
1314 if (copy_to_user(&f->fmt.win.clips[i].c, &dev->clips[i].c,
1315 sizeof(struct v4l2_rect)))
1316 err = -EFAULT;
1317 }
1318
1319 return err;
1320 }
1321
1322 static int saa7134_try_fmt_vid_cap(struct file *file, void *priv,
1323 struct v4l2_format *f)
1324 {
1325 struct saa7134_dev *dev = video_drvdata(file);
1326 struct saa7134_format *fmt;
1327 enum v4l2_field field;
1328 unsigned int maxw, maxh;
1329
1330 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1331 if (NULL == fmt)
1332 return -EINVAL;
1333
1334 field = f->fmt.pix.field;
1335 maxw = min(dev->crop_current.width*4, dev->crop_bounds.width);
1336 maxh = min(dev->crop_current.height*4, dev->crop_bounds.height);
1337
1338 if (V4L2_FIELD_ANY == field) {
1339 field = (f->fmt.pix.height > maxh/2)
1340 ? V4L2_FIELD_INTERLACED
1341 : V4L2_FIELD_BOTTOM;
1342 }
1343 switch (field) {
1344 case V4L2_FIELD_TOP:
1345 case V4L2_FIELD_BOTTOM:
1346 maxh = maxh / 2;
1347 break;
1348 default:
1349 field = V4L2_FIELD_INTERLACED;
1350 break;
1351 }
1352
1353 f->fmt.pix.field = field;
1354 if (f->fmt.pix.width < 48)
1355 f->fmt.pix.width = 48;
1356 if (f->fmt.pix.height < 32)
1357 f->fmt.pix.height = 32;
1358 if (f->fmt.pix.width > maxw)
1359 f->fmt.pix.width = maxw;
1360 if (f->fmt.pix.height > maxh)
1361 f->fmt.pix.height = maxh;
1362 f->fmt.pix.width &= ~0x03;
1363 if (fmt->planar)
1364 f->fmt.pix.bytesperline = f->fmt.pix.width;
1365 else
1366 f->fmt.pix.bytesperline =
1367 (f->fmt.pix.width * fmt->depth) / 8;
1368 f->fmt.pix.sizeimage =
1369 (f->fmt.pix.height * f->fmt.pix.width * fmt->depth) / 8;
1370 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1371
1372 return 0;
1373 }
1374
1375 static int saa7134_try_fmt_vid_overlay(struct file *file, void *priv,
1376 struct v4l2_format *f)
1377 {
1378 struct saa7134_dev *dev = video_drvdata(file);
1379
1380 if (saa7134_no_overlay > 0) {
1381 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1382 return -EINVAL;
1383 }
1384
1385 if (f->fmt.win.clips == NULL)
1386 f->fmt.win.clipcount = 0;
1387 return verify_preview(dev, &f->fmt.win, true);
1388 }
1389
1390 static int saa7134_s_fmt_vid_cap(struct file *file, void *priv,
1391 struct v4l2_format *f)
1392 {
1393 struct saa7134_dev *dev = video_drvdata(file);
1394 int err;
1395
1396 err = saa7134_try_fmt_vid_cap(file, priv, f);
1397 if (0 != err)
1398 return err;
1399
1400 dev->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1401 dev->width = f->fmt.pix.width;
1402 dev->height = f->fmt.pix.height;
1403 dev->field = f->fmt.pix.field;
1404 return 0;
1405 }
1406
1407 static int saa7134_s_fmt_vid_overlay(struct file *file, void *priv,
1408 struct v4l2_format *f)
1409 {
1410 struct saa7134_dev *dev = video_drvdata(file);
1411 int err;
1412 unsigned long flags;
1413
1414 if (saa7134_no_overlay > 0) {
1415 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1416 return -EINVAL;
1417 }
1418 if (f->fmt.win.clips == NULL)
1419 f->fmt.win.clipcount = 0;
1420 err = verify_preview(dev, &f->fmt.win, true);
1421 if (0 != err)
1422 return err;
1423
1424 dev->win = f->fmt.win;
1425 dev->nclips = f->fmt.win.clipcount;
1426
1427 if (copy_from_user(dev->clips, f->fmt.win.clips,
1428 sizeof(struct v4l2_clip) * dev->nclips))
1429 return -EFAULT;
1430
1431 if (priv == dev->overlay_owner) {
1432 spin_lock_irqsave(&dev->slock, flags);
1433 stop_preview(dev);
1434 start_preview(dev);
1435 spin_unlock_irqrestore(&dev->slock, flags);
1436 }
1437
1438 return 0;
1439 }
1440
1441 int saa7134_enum_input(struct file *file, void *priv, struct v4l2_input *i)
1442 {
1443 struct saa7134_dev *dev = video_drvdata(file);
1444 unsigned int n;
1445
1446 n = i->index;
1447 if (n >= SAA7134_INPUT_MAX)
1448 return -EINVAL;
1449 if (card_in(dev, i->index).type == SAA7134_NO_INPUT)
1450 return -EINVAL;
1451 i->index = n;
1452 strcpy(i->name, saa7134_input_name[card_in(dev, n).type]);
1453 switch (card_in(dev, n).type) {
1454 case SAA7134_INPUT_TV:
1455 case SAA7134_INPUT_TV_MONO:
1456 i->type = V4L2_INPUT_TYPE_TUNER;
1457 break;
1458 default:
1459 i->type = V4L2_INPUT_TYPE_CAMERA;
1460 break;
1461 }
1462 if (n == dev->ctl_input) {
1463 int v1 = saa_readb(SAA7134_STATUS_VIDEO1);
1464 int v2 = saa_readb(SAA7134_STATUS_VIDEO2);
1465
1466 if (0 != (v1 & 0x40))
1467 i->status |= V4L2_IN_ST_NO_H_LOCK;
1468 if (0 != (v2 & 0x40))
1469 i->status |= V4L2_IN_ST_NO_SIGNAL;
1470 if (0 != (v2 & 0x0e))
1471 i->status |= V4L2_IN_ST_MACROVISION;
1472 }
1473 i->std = SAA7134_NORMS;
1474 return 0;
1475 }
1476 EXPORT_SYMBOL_GPL(saa7134_enum_input);
1477
1478 int saa7134_g_input(struct file *file, void *priv, unsigned int *i)
1479 {
1480 struct saa7134_dev *dev = video_drvdata(file);
1481
1482 *i = dev->ctl_input;
1483 return 0;
1484 }
1485 EXPORT_SYMBOL_GPL(saa7134_g_input);
1486
1487 int saa7134_s_input(struct file *file, void *priv, unsigned int i)
1488 {
1489 struct saa7134_dev *dev = video_drvdata(file);
1490
1491 if (i >= SAA7134_INPUT_MAX)
1492 return -EINVAL;
1493 if (card_in(dev, i).type == SAA7134_NO_INPUT)
1494 return -EINVAL;
1495 video_mux(dev, i);
1496 return 0;
1497 }
1498 EXPORT_SYMBOL_GPL(saa7134_s_input);
1499
1500 int saa7134_querycap(struct file *file, void *priv,
1501 struct v4l2_capability *cap)
1502 {
1503 struct saa7134_dev *dev = video_drvdata(file);
1504 struct video_device *vdev = video_devdata(file);
1505 u32 radio_caps, video_caps, vbi_caps;
1506
1507 unsigned int tuner_type = dev->tuner_type;
1508
1509 strcpy(cap->driver, "saa7134");
1510 strlcpy(cap->card, saa7134_boards[dev->board].name,
1511 sizeof(cap->card));
1512 sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
1513
1514 cap->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
1515 if ((tuner_type != TUNER_ABSENT) && (tuner_type != UNSET))
1516 cap->device_caps |= V4L2_CAP_TUNER;
1517
1518 radio_caps = V4L2_CAP_RADIO;
1519 if (dev->has_rds)
1520 radio_caps |= V4L2_CAP_RDS_CAPTURE;
1521
1522 video_caps = V4L2_CAP_VIDEO_CAPTURE;
1523 if (saa7134_no_overlay <= 0 && !is_empress(file))
1524 video_caps |= V4L2_CAP_VIDEO_OVERLAY;
1525
1526 vbi_caps = V4L2_CAP_VBI_CAPTURE;
1527
1528 switch (vdev->vfl_type) {
1529 case VFL_TYPE_RADIO:
1530 cap->device_caps |= radio_caps;
1531 break;
1532 case VFL_TYPE_GRABBER:
1533 cap->device_caps |= video_caps;
1534 break;
1535 case VFL_TYPE_VBI:
1536 cap->device_caps |= vbi_caps;
1537 break;
1538 }
1539 cap->capabilities = radio_caps | video_caps | vbi_caps |
1540 cap->device_caps | V4L2_CAP_DEVICE_CAPS;
1541 if (vdev->vfl_type == VFL_TYPE_RADIO) {
1542 cap->device_caps &= ~V4L2_CAP_STREAMING;
1543 if (!dev->has_rds)
1544 cap->device_caps &= ~V4L2_CAP_READWRITE;
1545 }
1546
1547 return 0;
1548 }
1549 EXPORT_SYMBOL_GPL(saa7134_querycap);
1550
1551 int saa7134_s_std(struct file *file, void *priv, v4l2_std_id id)
1552 {
1553 struct saa7134_dev *dev = video_drvdata(file);
1554 struct v4l2_fh *fh = priv;
1555 unsigned long flags;
1556 unsigned int i;
1557 v4l2_std_id fixup;
1558
1559 if (is_empress(file) && dev->overlay_owner) {
1560 /* Don't change the std from the mpeg device
1561 if overlay is active. */
1562 return -EBUSY;
1563 }
1564
1565 for (i = 0; i < TVNORMS; i++)
1566 if (id == tvnorms[i].id)
1567 break;
1568
1569 if (i == TVNORMS)
1570 for (i = 0; i < TVNORMS; i++)
1571 if (id & tvnorms[i].id)
1572 break;
1573 if (i == TVNORMS)
1574 return -EINVAL;
1575
1576 if ((id & V4L2_STD_SECAM) && (secam[0] != '-')) {
1577 if (secam[0] == 'L' || secam[0] == 'l') {
1578 if (secam[1] == 'C' || secam[1] == 'c')
1579 fixup = V4L2_STD_SECAM_LC;
1580 else
1581 fixup = V4L2_STD_SECAM_L;
1582 } else {
1583 if (secam[0] == 'D' || secam[0] == 'd')
1584 fixup = V4L2_STD_SECAM_DK;
1585 else
1586 fixup = V4L2_STD_SECAM;
1587 }
1588 for (i = 0; i < TVNORMS; i++) {
1589 if (fixup == tvnorms[i].id)
1590 break;
1591 }
1592 if (i == TVNORMS)
1593 return -EINVAL;
1594 }
1595
1596 id = tvnorms[i].id;
1597
1598 if (!is_empress(file) && fh == dev->overlay_owner) {
1599 spin_lock_irqsave(&dev->slock, flags);
1600 stop_preview(dev);
1601 spin_unlock_irqrestore(&dev->slock, flags);
1602
1603 set_tvnorm(dev, &tvnorms[i]);
1604
1605 spin_lock_irqsave(&dev->slock, flags);
1606 start_preview(dev);
1607 spin_unlock_irqrestore(&dev->slock, flags);
1608 } else
1609 set_tvnorm(dev, &tvnorms[i]);
1610
1611 saa7134_tvaudio_do_scan(dev);
1612 return 0;
1613 }
1614 EXPORT_SYMBOL_GPL(saa7134_s_std);
1615
1616 int saa7134_g_std(struct file *file, void *priv, v4l2_std_id *id)
1617 {
1618 struct saa7134_dev *dev = video_drvdata(file);
1619
1620 *id = dev->tvnorm->id;
1621 return 0;
1622 }
1623 EXPORT_SYMBOL_GPL(saa7134_g_std);
1624
1625 static v4l2_std_id saa7134_read_std(struct saa7134_dev *dev)
1626 {
1627 static v4l2_std_id stds[] = {
1628 V4L2_STD_UNKNOWN,
1629 V4L2_STD_NTSC,
1630 V4L2_STD_PAL,
1631 V4L2_STD_SECAM };
1632
1633 v4l2_std_id result = 0;
1634
1635 u8 st1 = saa_readb(SAA7134_STATUS_VIDEO1);
1636 u8 st2 = saa_readb(SAA7134_STATUS_VIDEO2);
1637
1638 if (!(st2 & 0x1)) /* RDCAP == 0 */
1639 result = V4L2_STD_UNKNOWN;
1640 else
1641 result = stds[st1 & 0x03];
1642
1643 return result;
1644 }
1645
1646 int saa7134_querystd(struct file *file, void *priv, v4l2_std_id *std)
1647 {
1648 struct saa7134_dev *dev = video_drvdata(file);
1649 *std &= saa7134_read_std(dev);
1650 return 0;
1651 }
1652 EXPORT_SYMBOL_GPL(saa7134_querystd);
1653
1654 static int saa7134_cropcap(struct file *file, void *priv,
1655 struct v4l2_cropcap *cap)
1656 {
1657 struct saa7134_dev *dev = video_drvdata(file);
1658
1659 if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1660 cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1661 return -EINVAL;
1662 cap->pixelaspect.numerator = 1;
1663 cap->pixelaspect.denominator = 1;
1664 if (dev->tvnorm->id & V4L2_STD_525_60) {
1665 cap->pixelaspect.numerator = 11;
1666 cap->pixelaspect.denominator = 10;
1667 }
1668 if (dev->tvnorm->id & V4L2_STD_625_50) {
1669 cap->pixelaspect.numerator = 54;
1670 cap->pixelaspect.denominator = 59;
1671 }
1672 return 0;
1673 }
1674
1675 static int saa7134_g_selection(struct file *file, void *f, struct v4l2_selection *sel)
1676 {
1677 struct saa7134_dev *dev = video_drvdata(file);
1678
1679 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1680 sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1681 return -EINVAL;
1682
1683 switch (sel->target) {
1684 case V4L2_SEL_TGT_CROP:
1685 sel->r = dev->crop_current;
1686 break;
1687 case V4L2_SEL_TGT_CROP_DEFAULT:
1688 sel->r = dev->crop_defrect;
1689 break;
1690 case V4L2_SEL_TGT_CROP_BOUNDS:
1691 sel->r = dev->crop_bounds;
1692 break;
1693 default:
1694 return -EINVAL;
1695 }
1696 return 0;
1697 }
1698
1699 static int saa7134_s_selection(struct file *file, void *f, struct v4l2_selection *sel)
1700 {
1701 struct saa7134_dev *dev = video_drvdata(file);
1702 struct v4l2_rect *b = &dev->crop_bounds;
1703 struct v4l2_rect *c = &dev->crop_current;
1704
1705 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1706 sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1707 return -EINVAL;
1708
1709 if (sel->target != V4L2_SEL_TGT_CROP)
1710 return -EINVAL;
1711
1712 if (dev->overlay_owner)
1713 return -EBUSY;
1714 if (vb2_is_streaming(&dev->video_vbq))
1715 return -EBUSY;
1716
1717 *c = sel->r;
1718 if (c->top < b->top)
1719 c->top = b->top;
1720 if (c->top > b->top + b->height)
1721 c->top = b->top + b->height;
1722 if (c->height > b->top - c->top + b->height)
1723 c->height = b->top - c->top + b->height;
1724
1725 if (c->left < b->left)
1726 c->left = b->left;
1727 if (c->left > b->left + b->width)
1728 c->left = b->left + b->width;
1729 if (c->width > b->left - c->left + b->width)
1730 c->width = b->left - c->left + b->width;
1731 sel->r = *c;
1732 return 0;
1733 }
1734
1735 int saa7134_g_tuner(struct file *file, void *priv,
1736 struct v4l2_tuner *t)
1737 {
1738 struct saa7134_dev *dev = video_drvdata(file);
1739 int n;
1740
1741 if (0 != t->index)
1742 return -EINVAL;
1743 memset(t, 0, sizeof(*t));
1744 for (n = 0; n < SAA7134_INPUT_MAX; n++) {
1745 if (card_in(dev, n).type == SAA7134_INPUT_TV ||
1746 card_in(dev, n).type == SAA7134_INPUT_TV_MONO)
1747 break;
1748 }
1749 if (n == SAA7134_INPUT_MAX)
1750 return -EINVAL;
1751 if (card_in(dev, n).type != SAA7134_NO_INPUT) {
1752 strcpy(t->name, "Television");
1753 t->type = V4L2_TUNER_ANALOG_TV;
1754 saa_call_all(dev, tuner, g_tuner, t);
1755 t->capability = V4L2_TUNER_CAP_NORM |
1756 V4L2_TUNER_CAP_STEREO |
1757 V4L2_TUNER_CAP_LANG1 |
1758 V4L2_TUNER_CAP_LANG2;
1759 t->rxsubchans = saa7134_tvaudio_getstereo(dev);
1760 t->audmode = saa7134_tvaudio_rx2mode(t->rxsubchans);
1761 }
1762 if (0 != (saa_readb(SAA7134_STATUS_VIDEO1) & 0x03))
1763 t->signal = 0xffff;
1764 return 0;
1765 }
1766 EXPORT_SYMBOL_GPL(saa7134_g_tuner);
1767
1768 int saa7134_s_tuner(struct file *file, void *priv,
1769 const struct v4l2_tuner *t)
1770 {
1771 struct saa7134_dev *dev = video_drvdata(file);
1772 int rx, mode;
1773
1774 if (0 != t->index)
1775 return -EINVAL;
1776
1777 mode = dev->thread.mode;
1778 if (UNSET == mode) {
1779 rx = saa7134_tvaudio_getstereo(dev);
1780 mode = saa7134_tvaudio_rx2mode(rx);
1781 }
1782 if (mode != t->audmode)
1783 dev->thread.mode = t->audmode;
1784
1785 return 0;
1786 }
1787 EXPORT_SYMBOL_GPL(saa7134_s_tuner);
1788
1789 int saa7134_g_frequency(struct file *file, void *priv,
1790 struct v4l2_frequency *f)
1791 {
1792 struct saa7134_dev *dev = video_drvdata(file);
1793
1794 if (0 != f->tuner)
1795 return -EINVAL;
1796
1797 saa_call_all(dev, tuner, g_frequency, f);
1798
1799 return 0;
1800 }
1801 EXPORT_SYMBOL_GPL(saa7134_g_frequency);
1802
1803 int saa7134_s_frequency(struct file *file, void *priv,
1804 const struct v4l2_frequency *f)
1805 {
1806 struct saa7134_dev *dev = video_drvdata(file);
1807
1808 if (0 != f->tuner)
1809 return -EINVAL;
1810
1811 saa_call_all(dev, tuner, s_frequency, f);
1812
1813 saa7134_tvaudio_do_scan(dev);
1814 return 0;
1815 }
1816 EXPORT_SYMBOL_GPL(saa7134_s_frequency);
1817
1818 static int saa7134_enum_fmt_vid_cap(struct file *file, void *priv,
1819 struct v4l2_fmtdesc *f)
1820 {
1821 if (f->index >= FORMATS)
1822 return -EINVAL;
1823
1824 strlcpy(f->description, formats[f->index].name,
1825 sizeof(f->description));
1826
1827 f->pixelformat = formats[f->index].fourcc;
1828
1829 return 0;
1830 }
1831
1832 static int saa7134_enum_fmt_vid_overlay(struct file *file, void *priv,
1833 struct v4l2_fmtdesc *f)
1834 {
1835 if (saa7134_no_overlay > 0) {
1836 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1837 return -EINVAL;
1838 }
1839
1840 if ((f->index >= FORMATS) || formats[f->index].planar)
1841 return -EINVAL;
1842
1843 strlcpy(f->description, formats[f->index].name,
1844 sizeof(f->description));
1845
1846 f->pixelformat = formats[f->index].fourcc;
1847
1848 return 0;
1849 }
1850
1851 static int saa7134_g_fbuf(struct file *file, void *f,
1852 struct v4l2_framebuffer *fb)
1853 {
1854 struct saa7134_dev *dev = video_drvdata(file);
1855
1856 *fb = dev->ovbuf;
1857 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
1858
1859 return 0;
1860 }
1861
1862 static int saa7134_s_fbuf(struct file *file, void *f,
1863 const struct v4l2_framebuffer *fb)
1864 {
1865 struct saa7134_dev *dev = video_drvdata(file);
1866 struct saa7134_format *fmt;
1867
1868 if (!capable(CAP_SYS_ADMIN) &&
1869 !capable(CAP_SYS_RAWIO))
1870 return -EPERM;
1871
1872 /* check args */
1873 fmt = format_by_fourcc(fb->fmt.pixelformat);
1874 if (NULL == fmt)
1875 return -EINVAL;
1876
1877 /* ok, accept it */
1878 dev->ovbuf = *fb;
1879 dev->ovfmt = fmt;
1880 if (0 == dev->ovbuf.fmt.bytesperline)
1881 dev->ovbuf.fmt.bytesperline =
1882 dev->ovbuf.fmt.width*fmt->depth/8;
1883 return 0;
1884 }
1885
1886 static int saa7134_overlay(struct file *file, void *priv, unsigned int on)
1887 {
1888 struct saa7134_dev *dev = video_drvdata(file);
1889 unsigned long flags;
1890
1891 if (on) {
1892 if (saa7134_no_overlay > 0) {
1893 video_dbg("no_overlay\n");
1894 return -EINVAL;
1895 }
1896
1897 if (dev->overlay_owner && priv != dev->overlay_owner)
1898 return -EBUSY;
1899 dev->overlay_owner = priv;
1900 spin_lock_irqsave(&dev->slock, flags);
1901 start_preview(dev);
1902 spin_unlock_irqrestore(&dev->slock, flags);
1903 }
1904 if (!on) {
1905 if (priv != dev->overlay_owner)
1906 return -EINVAL;
1907 spin_lock_irqsave(&dev->slock, flags);
1908 stop_preview(dev);
1909 spin_unlock_irqrestore(&dev->slock, flags);
1910 dev->overlay_owner = NULL;
1911 }
1912 return 0;
1913 }
1914
1915 #ifdef CONFIG_VIDEO_ADV_DEBUG
1916 static int vidioc_g_register (struct file *file, void *priv,
1917 struct v4l2_dbg_register *reg)
1918 {
1919 struct saa7134_dev *dev = video_drvdata(file);
1920
1921 reg->val = saa_readb(reg->reg & 0xffffff);
1922 reg->size = 1;
1923 return 0;
1924 }
1925
1926 static int vidioc_s_register (struct file *file, void *priv,
1927 const struct v4l2_dbg_register *reg)
1928 {
1929 struct saa7134_dev *dev = video_drvdata(file);
1930
1931 saa_writeb(reg->reg & 0xffffff, reg->val);
1932 return 0;
1933 }
1934 #endif
1935
1936 static int radio_g_tuner(struct file *file, void *priv,
1937 struct v4l2_tuner *t)
1938 {
1939 struct saa7134_dev *dev = video_drvdata(file);
1940
1941 if (0 != t->index)
1942 return -EINVAL;
1943
1944 strcpy(t->name, "Radio");
1945
1946 saa_call_all(dev, tuner, g_tuner, t);
1947 t->audmode &= V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO;
1948 if (dev->input->amux == TV) {
1949 t->signal = 0xf800 - ((saa_readb(0x581) & 0x1f) << 11);
1950 t->rxsubchans = (saa_readb(0x529) & 0x08) ?
1951 V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO;
1952 }
1953 return 0;
1954 }
1955 static int radio_s_tuner(struct file *file, void *priv,
1956 const struct v4l2_tuner *t)
1957 {
1958 struct saa7134_dev *dev = video_drvdata(file);
1959
1960 if (0 != t->index)
1961 return -EINVAL;
1962
1963 saa_call_all(dev, tuner, s_tuner, t);
1964 return 0;
1965 }
1966
1967 static const struct v4l2_file_operations video_fops =
1968 {
1969 .owner = THIS_MODULE,
1970 .open = video_open,
1971 .release = video_release,
1972 .read = vb2_fop_read,
1973 .poll = vb2_fop_poll,
1974 .mmap = vb2_fop_mmap,
1975 .unlocked_ioctl = video_ioctl2,
1976 };
1977
1978 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1979 .vidioc_querycap = saa7134_querycap,
1980 .vidioc_enum_fmt_vid_cap = saa7134_enum_fmt_vid_cap,
1981 .vidioc_g_fmt_vid_cap = saa7134_g_fmt_vid_cap,
1982 .vidioc_try_fmt_vid_cap = saa7134_try_fmt_vid_cap,
1983 .vidioc_s_fmt_vid_cap = saa7134_s_fmt_vid_cap,
1984 .vidioc_enum_fmt_vid_overlay = saa7134_enum_fmt_vid_overlay,
1985 .vidioc_g_fmt_vid_overlay = saa7134_g_fmt_vid_overlay,
1986 .vidioc_try_fmt_vid_overlay = saa7134_try_fmt_vid_overlay,
1987 .vidioc_s_fmt_vid_overlay = saa7134_s_fmt_vid_overlay,
1988 .vidioc_g_fmt_vbi_cap = saa7134_try_get_set_fmt_vbi_cap,
1989 .vidioc_try_fmt_vbi_cap = saa7134_try_get_set_fmt_vbi_cap,
1990 .vidioc_s_fmt_vbi_cap = saa7134_try_get_set_fmt_vbi_cap,
1991 .vidioc_cropcap = saa7134_cropcap,
1992 .vidioc_reqbufs = vb2_ioctl_reqbufs,
1993 .vidioc_querybuf = vb2_ioctl_querybuf,
1994 .vidioc_qbuf = vb2_ioctl_qbuf,
1995 .vidioc_dqbuf = vb2_ioctl_dqbuf,
1996 .vidioc_expbuf = vb2_ioctl_expbuf,
1997 .vidioc_s_std = saa7134_s_std,
1998 .vidioc_g_std = saa7134_g_std,
1999 .vidioc_querystd = saa7134_querystd,
2000 .vidioc_enum_input = saa7134_enum_input,
2001 .vidioc_g_input = saa7134_g_input,
2002 .vidioc_s_input = saa7134_s_input,
2003 .vidioc_streamon = vb2_ioctl_streamon,
2004 .vidioc_streamoff = vb2_ioctl_streamoff,
2005 .vidioc_g_tuner = saa7134_g_tuner,
2006 .vidioc_s_tuner = saa7134_s_tuner,
2007 .vidioc_g_selection = saa7134_g_selection,
2008 .vidioc_s_selection = saa7134_s_selection,
2009 .vidioc_g_fbuf = saa7134_g_fbuf,
2010 .vidioc_s_fbuf = saa7134_s_fbuf,
2011 .vidioc_overlay = saa7134_overlay,
2012 .vidioc_g_frequency = saa7134_g_frequency,
2013 .vidioc_s_frequency = saa7134_s_frequency,
2014 #ifdef CONFIG_VIDEO_ADV_DEBUG
2015 .vidioc_g_register = vidioc_g_register,
2016 .vidioc_s_register = vidioc_s_register,
2017 #endif
2018 .vidioc_log_status = v4l2_ctrl_log_status,
2019 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
2020 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
2021 };
2022
2023 static const struct v4l2_file_operations radio_fops = {
2024 .owner = THIS_MODULE,
2025 .open = video_open,
2026 .read = radio_read,
2027 .release = video_release,
2028 .unlocked_ioctl = video_ioctl2,
2029 .poll = radio_poll,
2030 };
2031
2032 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
2033 .vidioc_querycap = saa7134_querycap,
2034 .vidioc_g_tuner = radio_g_tuner,
2035 .vidioc_s_tuner = radio_s_tuner,
2036 .vidioc_g_frequency = saa7134_g_frequency,
2037 .vidioc_s_frequency = saa7134_s_frequency,
2038 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
2039 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
2040 };
2041
2042 /* ----------------------------------------------------------- */
2043 /* exported stuff */
2044
2045 struct video_device saa7134_video_template = {
2046 .name = "saa7134-video",
2047 .fops = &video_fops,
2048 .ioctl_ops = &video_ioctl_ops,
2049 .tvnorms = SAA7134_NORMS,
2050 };
2051
2052 struct video_device saa7134_radio_template = {
2053 .name = "saa7134-radio",
2054 .fops = &radio_fops,
2055 .ioctl_ops = &radio_ioctl_ops,
2056 };
2057
2058 static const struct v4l2_ctrl_ops saa7134_ctrl_ops = {
2059 .s_ctrl = saa7134_s_ctrl,
2060 };
2061
2062 static const struct v4l2_ctrl_config saa7134_ctrl_invert = {
2063 .ops = &saa7134_ctrl_ops,
2064 .id = V4L2_CID_PRIVATE_INVERT,
2065 .name = "Invert",
2066 .type = V4L2_CTRL_TYPE_BOOLEAN,
2067 .min = 0,
2068 .max = 1,
2069 .step = 1,
2070 };
2071
2072 static const struct v4l2_ctrl_config saa7134_ctrl_y_odd = {
2073 .ops = &saa7134_ctrl_ops,
2074 .id = V4L2_CID_PRIVATE_Y_ODD,
2075 .name = "Y Offset Odd Field",
2076 .type = V4L2_CTRL_TYPE_INTEGER,
2077 .min = 0,
2078 .max = 128,
2079 .step = 1,
2080 };
2081
2082 static const struct v4l2_ctrl_config saa7134_ctrl_y_even = {
2083 .ops = &saa7134_ctrl_ops,
2084 .id = V4L2_CID_PRIVATE_Y_EVEN,
2085 .name = "Y Offset Even Field",
2086 .type = V4L2_CTRL_TYPE_INTEGER,
2087 .min = 0,
2088 .max = 128,
2089 .step = 1,
2090 };
2091
2092 static const struct v4l2_ctrl_config saa7134_ctrl_automute = {
2093 .ops = &saa7134_ctrl_ops,
2094 .id = V4L2_CID_PRIVATE_AUTOMUTE,
2095 .name = "Automute",
2096 .type = V4L2_CTRL_TYPE_BOOLEAN,
2097 .min = 0,
2098 .max = 1,
2099 .step = 1,
2100 .def = 1,
2101 };
2102
2103 int saa7134_video_init1(struct saa7134_dev *dev)
2104 {
2105 struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler;
2106 struct vb2_queue *q;
2107 int ret;
2108
2109 /* sanitycheck insmod options */
2110 if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
2111 gbuffers = 2;
2112 if (gbufsize > gbufsize_max)
2113 gbufsize = gbufsize_max;
2114 gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
2115
2116 v4l2_ctrl_handler_init(hdl, 11);
2117 v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2118 V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
2119 v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2120 V4L2_CID_CONTRAST, 0, 127, 1, 68);
2121 v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2122 V4L2_CID_SATURATION, 0, 127, 1, 64);
2123 v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2124 V4L2_CID_HUE, -128, 127, 1, 0);
2125 v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2126 V4L2_CID_HFLIP, 0, 1, 1, 0);
2127 v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2128 V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
2129 v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2130 V4L2_CID_AUDIO_VOLUME, -15, 15, 1, 0);
2131 v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_invert, NULL);
2132 v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_y_odd, NULL);
2133 v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_y_even, NULL);
2134 v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_automute, NULL);
2135 if (hdl->error)
2136 return hdl->error;
2137 if (card_has_radio(dev)) {
2138 hdl = &dev->radio_ctrl_handler;
2139 v4l2_ctrl_handler_init(hdl, 2);
2140 v4l2_ctrl_add_handler(hdl, &dev->ctrl_handler,
2141 v4l2_ctrl_radio_filter);
2142 if (hdl->error)
2143 return hdl->error;
2144 }
2145 dev->ctl_mute = 1;
2146
2147 if (dev->tda9887_conf && saa7134_ctrl_automute.def)
2148 dev->tda9887_conf |= TDA9887_AUTOMUTE;
2149 dev->automute = 0;
2150
2151 INIT_LIST_HEAD(&dev->video_q.queue);
2152 init_timer(&dev->video_q.timeout);
2153 dev->video_q.timeout.function = saa7134_buffer_timeout;
2154 dev->video_q.timeout.data = (unsigned long)(&dev->video_q);
2155 dev->video_q.dev = dev;
2156 dev->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
2157 dev->width = 720;
2158 dev->height = 576;
2159 dev->field = V4L2_FIELD_INTERLACED;
2160 dev->win.w.width = dev->width;
2161 dev->win.w.height = dev->height;
2162 dev->win.field = V4L2_FIELD_INTERLACED;
2163 dev->ovbuf.fmt.width = dev->width;
2164 dev->ovbuf.fmt.height = dev->height;
2165 dev->ovbuf.fmt.pixelformat = dev->fmt->fourcc;
2166 dev->ovbuf.fmt.colorspace = V4L2_COLORSPACE_SMPTE170M;
2167
2168 if (saa7134_boards[dev->board].video_out)
2169 saa7134_videoport_init(dev);
2170
2171 q = &dev->video_vbq;
2172 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2173 /*
2174 * Do not add VB2_USERPTR unless explicitly requested: the saa7134 DMA
2175 * engine cannot handle transfers that do not start at the beginning
2176 * of a page. A user-provided pointer can start anywhere in a page, so
2177 * USERPTR support is a no-go unless the application knows about these
2178 * limitations and has special support for this.
2179 */
2180 q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
2181 if (saa7134_userptr)
2182 q->io_modes |= VB2_USERPTR;
2183 q->drv_priv = &dev->video_q;
2184 q->ops = &vb2_qops;
2185 q->gfp_flags = GFP_DMA32;
2186 q->mem_ops = &vb2_dma_sg_memops;
2187 q->buf_struct_size = sizeof(struct saa7134_buf);
2188 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
2189 q->lock = &dev->lock;
2190 q->dev = &dev->pci->dev;
2191 ret = vb2_queue_init(q);
2192 if (ret)
2193 return ret;
2194 saa7134_pgtable_alloc(dev->pci, &dev->video_q.pt);
2195
2196 q = &dev->vbi_vbq;
2197 q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
2198 /* Don't add VB2_USERPTR, see comment above */
2199 q->io_modes = VB2_MMAP | VB2_READ;
2200 if (saa7134_userptr)
2201 q->io_modes |= VB2_USERPTR;
2202 q->drv_priv = &dev->vbi_q;
2203 q->ops = &saa7134_vbi_qops;
2204 q->gfp_flags = GFP_DMA32;
2205 q->mem_ops = &vb2_dma_sg_memops;
2206 q->buf_struct_size = sizeof(struct saa7134_buf);
2207 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
2208 q->lock = &dev->lock;
2209 q->dev = &dev->pci->dev;
2210 ret = vb2_queue_init(q);
2211 if (ret)
2212 return ret;
2213 saa7134_pgtable_alloc(dev->pci, &dev->vbi_q.pt);
2214
2215 return 0;
2216 }
2217
2218 void saa7134_video_fini(struct saa7134_dev *dev)
2219 {
2220 /* free stuff */
2221 vb2_queue_release(&dev->video_vbq);
2222 saa7134_pgtable_free(dev->pci, &dev->video_q.pt);
2223 vb2_queue_release(&dev->vbi_vbq);
2224 saa7134_pgtable_free(dev->pci, &dev->vbi_q.pt);
2225 v4l2_ctrl_handler_free(&dev->ctrl_handler);
2226 if (card_has_radio(dev))
2227 v4l2_ctrl_handler_free(&dev->radio_ctrl_handler);
2228 }
2229
2230 int saa7134_videoport_init(struct saa7134_dev *dev)
2231 {
2232 /* enable video output */
2233 int vo = saa7134_boards[dev->board].video_out;
2234 int video_reg;
2235 unsigned int vid_port_opts = saa7134_boards[dev->board].vid_port_opts;
2236
2237 /* Configure videoport */
2238 saa_writeb(SAA7134_VIDEO_PORT_CTRL0, video_out[vo][0]);
2239 video_reg = video_out[vo][1];
2240 if (vid_port_opts & SET_T_CODE_POLARITY_NON_INVERTED)
2241 video_reg &= ~VP_T_CODE_P_INVERTED;
2242 saa_writeb(SAA7134_VIDEO_PORT_CTRL1, video_reg);
2243 saa_writeb(SAA7134_VIDEO_PORT_CTRL2, video_out[vo][2]);
2244 saa_writeb(SAA7134_VIDEO_PORT_CTRL4, video_out[vo][4]);
2245 video_reg = video_out[vo][5];
2246 if (vid_port_opts & SET_CLOCK_NOT_DELAYED)
2247 video_reg &= ~VP_CLK_CTRL2_DELAYED;
2248 if (vid_port_opts & SET_CLOCK_INVERTED)
2249 video_reg |= VP_CLK_CTRL1_INVERTED;
2250 saa_writeb(SAA7134_VIDEO_PORT_CTRL5, video_reg);
2251 video_reg = video_out[vo][6];
2252 if (vid_port_opts & SET_VSYNC_OFF) {
2253 video_reg &= ~VP_VS_TYPE_MASK;
2254 video_reg |= VP_VS_TYPE_OFF;
2255 }
2256 saa_writeb(SAA7134_VIDEO_PORT_CTRL6, video_reg);
2257 saa_writeb(SAA7134_VIDEO_PORT_CTRL7, video_out[vo][7]);
2258 saa_writeb(SAA7134_VIDEO_PORT_CTRL8, video_out[vo][8]);
2259
2260 /* Start videoport */
2261 saa_writeb(SAA7134_VIDEO_PORT_CTRL3, video_out[vo][3]);
2262
2263 return 0;
2264 }
2265
2266 int saa7134_video_init2(struct saa7134_dev *dev)
2267 {
2268 /* init video hw */
2269 set_tvnorm(dev,&tvnorms[0]);
2270 video_mux(dev,0);
2271 v4l2_ctrl_handler_setup(&dev->ctrl_handler);
2272 saa7134_tvaudio_setmute(dev);
2273 saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
2274 return 0;
2275 }
2276
2277 void saa7134_irq_video_signalchange(struct saa7134_dev *dev)
2278 {
2279 static const char *st[] = {
2280 "(no signal)", "NTSC", "PAL", "SECAM" };
2281 u32 st1,st2;
2282
2283 st1 = saa_readb(SAA7134_STATUS_VIDEO1);
2284 st2 = saa_readb(SAA7134_STATUS_VIDEO2);
2285 video_dbg("DCSDT: pll: %s, sync: %s, norm: %s\n",
2286 (st1 & 0x40) ? "not locked" : "locked",
2287 (st2 & 0x40) ? "no" : "yes",
2288 st[st1 & 0x03]);
2289 dev->nosignal = (st1 & 0x40) || (st2 & 0x40) || !(st2 & 0x1);
2290
2291 if (dev->nosignal) {
2292 /* no video signal -> mute audio */
2293 if (dev->ctl_automute)
2294 dev->automute = 1;
2295 saa7134_tvaudio_setmute(dev);
2296 } else {
2297 /* wake up tvaudio audio carrier scan thread */
2298 saa7134_tvaudio_do_scan(dev);
2299 }
2300
2301 if ((st2 & 0x80) && !noninterlaced && !dev->nosignal)
2302 saa_clearb(SAA7134_SYNC_CTRL, 0x20);
2303 else
2304 saa_setb(SAA7134_SYNC_CTRL, 0x20);
2305
2306 if (dev->mops && dev->mops->signal_change)
2307 dev->mops->signal_change(dev);
2308 }
2309
2310
2311 void saa7134_irq_video_done(struct saa7134_dev *dev, unsigned long status)
2312 {
2313 enum v4l2_field field;
2314
2315 spin_lock(&dev->slock);
2316 if (dev->video_q.curr) {
2317 field = dev->field;
2318 if (V4L2_FIELD_HAS_BOTH(field)) {
2319 /* make sure we have seen both fields */
2320 if ((status & 0x10) == 0x00) {
2321 dev->video_q.curr->top_seen = 1;
2322 goto done;
2323 }
2324 if (!dev->video_q.curr->top_seen)
2325 goto done;
2326 } else if (field == V4L2_FIELD_TOP) {
2327 if ((status & 0x10) != 0x10)
2328 goto done;
2329 } else if (field == V4L2_FIELD_BOTTOM) {
2330 if ((status & 0x10) != 0x00)
2331 goto done;
2332 }
2333 saa7134_buffer_finish(dev, &dev->video_q, VB2_BUF_STATE_DONE);
2334 }
2335 saa7134_buffer_next(dev, &dev->video_q);
2336
2337 done:
2338 spin_unlock(&dev->slock);
2339 }
Linux kernel - Deliverables
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