xref: /linux/drivers/media/pci/saa7134/saa7134-video.c (revision 1ac731c529cd4d6adbce134754b51ff7d822b145)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *
4  * device driver for philips saa7134 based TV cards
5  * video4linux video interface
6  *
7  * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
8  */
9 
10 #include "saa7134.h"
11 #include "saa7134-reg.h"
12 
13 #include <linux/init.h>
14 #include <linux/list.h>
15 #include <linux/module.h>
16 #include <linux/kernel.h>
17 #include <linux/slab.h>
18 #include <linux/sort.h>
19 
20 #include <media/v4l2-common.h>
21 #include <media/v4l2-event.h>
22 #include <media/i2c/saa6588.h>
23 
24 /* ------------------------------------------------------------------ */
25 
26 unsigned int video_debug;
27 static unsigned int gbuffers      = 8;
28 static unsigned int noninterlaced; /* 0 */
29 static unsigned int gbufsize      = 720*576*4;
30 static unsigned int gbufsize_max  = 720*576*4;
31 static char secam[] = "--";
32 module_param(video_debug, int, 0644);
33 MODULE_PARM_DESC(video_debug,"enable debug messages [video]");
34 module_param(gbuffers, int, 0444);
35 MODULE_PARM_DESC(gbuffers,"number of capture buffers, range 2-32");
36 module_param(noninterlaced, int, 0644);
37 MODULE_PARM_DESC(noninterlaced,"capture non interlaced video");
38 module_param_string(secam, secam, sizeof(secam), 0644);
39 MODULE_PARM_DESC(secam, "force SECAM variant, either DK,L or Lc");
40 
41 
42 #define video_dbg(fmt, arg...) do { \
43 	if (video_debug & 0x04) \
44 		printk(KERN_DEBUG pr_fmt("video: " fmt), ## arg); \
45 	} while (0)
46 
47 /* ------------------------------------------------------------------ */
48 /* Defines for Video Output Port Register at address 0x191            */
49 
50 /* Bit 0: VIP code T bit polarity */
51 
52 #define VP_T_CODE_P_NON_INVERTED	0x00
53 #define VP_T_CODE_P_INVERTED		0x01
54 
55 /* ------------------------------------------------------------------ */
56 /* Defines for Video Output Port Register at address 0x195            */
57 
58 /* Bit 2: Video output clock delay control */
59 
60 #define VP_CLK_CTRL2_NOT_DELAYED	0x00
61 #define VP_CLK_CTRL2_DELAYED		0x04
62 
63 /* Bit 1: Video output clock invert control */
64 
65 #define VP_CLK_CTRL1_NON_INVERTED	0x00
66 #define VP_CLK_CTRL1_INVERTED		0x02
67 
68 /* ------------------------------------------------------------------ */
69 /* Defines for Video Output Port Register at address 0x196            */
70 
71 /* Bits 2 to 0: VSYNC pin video vertical sync type */
72 
73 #define VP_VS_TYPE_MASK			0x07
74 
75 #define VP_VS_TYPE_OFF			0x00
76 #define VP_VS_TYPE_V123			0x01
77 #define VP_VS_TYPE_V_ITU		0x02
78 #define VP_VS_TYPE_VGATE_L		0x03
79 #define VP_VS_TYPE_RESERVED1		0x04
80 #define VP_VS_TYPE_RESERVED2		0x05
81 #define VP_VS_TYPE_F_ITU		0x06
82 #define VP_VS_TYPE_SC_FID		0x07
83 
84 /* ------------------------------------------------------------------ */
85 /* data structs for video                                             */
86 
87 static int video_out[][9] = {
88 	[CCIR656] = { 0x00, 0xb1, 0x00, 0xa1, 0x00, 0x04, 0x06, 0x00, 0x00 },
89 };
90 
91 static struct saa7134_format formats[] = {
92 	{
93 		.fourcc   = V4L2_PIX_FMT_GREY,
94 		.depth    = 8,
95 		.pm       = 0x06,
96 	},{
97 		.fourcc   = V4L2_PIX_FMT_RGB555,
98 		.depth    = 16,
99 		.pm       = 0x13 | 0x80,
100 	},{
101 		.fourcc   = V4L2_PIX_FMT_RGB555X,
102 		.depth    = 16,
103 		.pm       = 0x13 | 0x80,
104 		.bswap    = 1,
105 	},{
106 		.fourcc   = V4L2_PIX_FMT_RGB565,
107 		.depth    = 16,
108 		.pm       = 0x10 | 0x80,
109 	},{
110 		.fourcc   = V4L2_PIX_FMT_RGB565X,
111 		.depth    = 16,
112 		.pm       = 0x10 | 0x80,
113 		.bswap    = 1,
114 	},{
115 		.fourcc   = V4L2_PIX_FMT_BGR24,
116 		.depth    = 24,
117 		.pm       = 0x11,
118 	},{
119 		.fourcc   = V4L2_PIX_FMT_RGB24,
120 		.depth    = 24,
121 		.pm       = 0x11,
122 		.bswap    = 1,
123 	},{
124 		.fourcc   = V4L2_PIX_FMT_BGR32,
125 		.depth    = 32,
126 		.pm       = 0x12,
127 	},{
128 		.fourcc   = V4L2_PIX_FMT_RGB32,
129 		.depth    = 32,
130 		.pm       = 0x12,
131 		.bswap    = 1,
132 		.wswap    = 1,
133 	},{
134 		.fourcc   = V4L2_PIX_FMT_YUYV,
135 		.depth    = 16,
136 		.pm       = 0x00,
137 		.bswap    = 1,
138 		.yuv      = 1,
139 	},{
140 		.fourcc   = V4L2_PIX_FMT_UYVY,
141 		.depth    = 16,
142 		.pm       = 0x00,
143 		.yuv      = 1,
144 	},{
145 		.fourcc   = V4L2_PIX_FMT_YUV422P,
146 		.depth    = 16,
147 		.pm       = 0x09,
148 		.yuv      = 1,
149 		.planar   = 1,
150 		.hshift   = 1,
151 		.vshift   = 0,
152 	},{
153 		.fourcc   = V4L2_PIX_FMT_YUV420,
154 		.depth    = 12,
155 		.pm       = 0x0a,
156 		.yuv      = 1,
157 		.planar   = 1,
158 		.hshift   = 1,
159 		.vshift   = 1,
160 	},{
161 		.fourcc   = V4L2_PIX_FMT_YVU420,
162 		.depth    = 12,
163 		.pm       = 0x0a,
164 		.yuv      = 1,
165 		.planar   = 1,
166 		.uvswap   = 1,
167 		.hshift   = 1,
168 		.vshift   = 1,
169 	}
170 };
171 #define FORMATS ARRAY_SIZE(formats)
172 
173 #define NORM_625_50			\
174 		.h_start       = 0,	\
175 		.h_stop        = 719,	\
176 		.video_v_start = 24,	\
177 		.video_v_stop  = 311,	\
178 		.vbi_v_start_0 = 7,	\
179 		.vbi_v_stop_0  = 23,	\
180 		.vbi_v_start_1 = 319,   \
181 		.src_timing    = 4
182 
183 #define NORM_525_60			\
184 		.h_start       = 0,	\
185 		.h_stop        = 719,	\
186 		.video_v_start = 23,	\
187 		.video_v_stop  = 262,	\
188 		.vbi_v_start_0 = 10,	\
189 		.vbi_v_stop_0  = 21,	\
190 		.vbi_v_start_1 = 273,	\
191 		.src_timing    = 7
192 
193 static struct saa7134_tvnorm tvnorms[] = {
194 	{
195 		.name          = "PAL", /* autodetect */
196 		.id            = V4L2_STD_PAL,
197 		NORM_625_50,
198 
199 		.sync_control  = 0x18,
200 		.luma_control  = 0x40,
201 		.chroma_ctrl1  = 0x81,
202 		.chroma_gain   = 0x2a,
203 		.chroma_ctrl2  = 0x06,
204 		.vgate_misc    = 0x1c,
205 
206 	},{
207 		.name          = "PAL-BG",
208 		.id            = V4L2_STD_PAL_BG,
209 		NORM_625_50,
210 
211 		.sync_control  = 0x18,
212 		.luma_control  = 0x40,
213 		.chroma_ctrl1  = 0x81,
214 		.chroma_gain   = 0x2a,
215 		.chroma_ctrl2  = 0x06,
216 		.vgate_misc    = 0x1c,
217 
218 	},{
219 		.name          = "PAL-I",
220 		.id            = V4L2_STD_PAL_I,
221 		NORM_625_50,
222 
223 		.sync_control  = 0x18,
224 		.luma_control  = 0x40,
225 		.chroma_ctrl1  = 0x81,
226 		.chroma_gain   = 0x2a,
227 		.chroma_ctrl2  = 0x06,
228 		.vgate_misc    = 0x1c,
229 
230 	},{
231 		.name          = "PAL-DK",
232 		.id            = V4L2_STD_PAL_DK,
233 		NORM_625_50,
234 
235 		.sync_control  = 0x18,
236 		.luma_control  = 0x40,
237 		.chroma_ctrl1  = 0x81,
238 		.chroma_gain   = 0x2a,
239 		.chroma_ctrl2  = 0x06,
240 		.vgate_misc    = 0x1c,
241 
242 	},{
243 		.name          = "NTSC",
244 		.id            = V4L2_STD_NTSC,
245 		NORM_525_60,
246 
247 		.sync_control  = 0x59,
248 		.luma_control  = 0x40,
249 		.chroma_ctrl1  = 0x89,
250 		.chroma_gain   = 0x2a,
251 		.chroma_ctrl2  = 0x0e,
252 		.vgate_misc    = 0x18,
253 
254 	},{
255 		.name          = "SECAM",
256 		.id            = V4L2_STD_SECAM,
257 		NORM_625_50,
258 
259 		.sync_control  = 0x18,
260 		.luma_control  = 0x1b,
261 		.chroma_ctrl1  = 0xd1,
262 		.chroma_gain   = 0x80,
263 		.chroma_ctrl2  = 0x00,
264 		.vgate_misc    = 0x1c,
265 
266 	},{
267 		.name          = "SECAM-DK",
268 		.id            = V4L2_STD_SECAM_DK,
269 		NORM_625_50,
270 
271 		.sync_control  = 0x18,
272 		.luma_control  = 0x1b,
273 		.chroma_ctrl1  = 0xd1,
274 		.chroma_gain   = 0x80,
275 		.chroma_ctrl2  = 0x00,
276 		.vgate_misc    = 0x1c,
277 
278 	},{
279 		.name          = "SECAM-L",
280 		.id            = V4L2_STD_SECAM_L,
281 		NORM_625_50,
282 
283 		.sync_control  = 0x18,
284 		.luma_control  = 0x1b,
285 		.chroma_ctrl1  = 0xd1,
286 		.chroma_gain   = 0x80,
287 		.chroma_ctrl2  = 0x00,
288 		.vgate_misc    = 0x1c,
289 
290 	},{
291 		.name          = "SECAM-Lc",
292 		.id            = V4L2_STD_SECAM_LC,
293 		NORM_625_50,
294 
295 		.sync_control  = 0x18,
296 		.luma_control  = 0x1b,
297 		.chroma_ctrl1  = 0xd1,
298 		.chroma_gain   = 0x80,
299 		.chroma_ctrl2  = 0x00,
300 		.vgate_misc    = 0x1c,
301 
302 	},{
303 		.name          = "PAL-M",
304 		.id            = V4L2_STD_PAL_M,
305 		NORM_525_60,
306 
307 		.sync_control  = 0x59,
308 		.luma_control  = 0x40,
309 		.chroma_ctrl1  = 0xb9,
310 		.chroma_gain   = 0x2a,
311 		.chroma_ctrl2  = 0x0e,
312 		.vgate_misc    = 0x18,
313 
314 	},{
315 		.name          = "PAL-Nc",
316 		.id            = V4L2_STD_PAL_Nc,
317 		NORM_625_50,
318 
319 		.sync_control  = 0x18,
320 		.luma_control  = 0x40,
321 		.chroma_ctrl1  = 0xa1,
322 		.chroma_gain   = 0x2a,
323 		.chroma_ctrl2  = 0x06,
324 		.vgate_misc    = 0x1c,
325 
326 	},{
327 		.name          = "PAL-60",
328 		.id            = V4L2_STD_PAL_60,
329 
330 		.h_start       = 0,
331 		.h_stop        = 719,
332 		.video_v_start = 23,
333 		.video_v_stop  = 262,
334 		.vbi_v_start_0 = 10,
335 		.vbi_v_stop_0  = 21,
336 		.vbi_v_start_1 = 273,
337 		.src_timing    = 7,
338 
339 		.sync_control  = 0x18,
340 		.luma_control  = 0x40,
341 		.chroma_ctrl1  = 0x81,
342 		.chroma_gain   = 0x2a,
343 		.chroma_ctrl2  = 0x06,
344 		.vgate_misc    = 0x1c,
345 	}
346 };
347 #define TVNORMS ARRAY_SIZE(tvnorms)
348 
format_by_fourcc(unsigned int fourcc)349 static struct saa7134_format* format_by_fourcc(unsigned int fourcc)
350 {
351 	unsigned int i;
352 
353 	for (i = 0; i < FORMATS; i++)
354 		if (formats[i].fourcc == fourcc)
355 			return formats+i;
356 	return NULL;
357 }
358 
359 /* ------------------------------------------------------------------ */
360 
set_tvnorm(struct saa7134_dev * dev,struct saa7134_tvnorm * norm)361 static void set_tvnorm(struct saa7134_dev *dev, struct saa7134_tvnorm *norm)
362 {
363 	video_dbg("set tv norm = %s\n", norm->name);
364 	dev->tvnorm = norm;
365 
366 	/* setup cropping */
367 	dev->crop_bounds.left    = norm->h_start;
368 	dev->crop_defrect.left   = norm->h_start;
369 	dev->crop_bounds.width   = norm->h_stop - norm->h_start +1;
370 	dev->crop_defrect.width  = norm->h_stop - norm->h_start +1;
371 
372 	dev->crop_bounds.top     = (norm->vbi_v_stop_0+1)*2;
373 	dev->crop_defrect.top    = norm->video_v_start*2;
374 	dev->crop_bounds.height  = ((norm->id & V4L2_STD_525_60) ? 524 : 624)
375 		- dev->crop_bounds.top;
376 	dev->crop_defrect.height = (norm->video_v_stop - norm->video_v_start +1)*2;
377 
378 	dev->crop_current = dev->crop_defrect;
379 
380 	saa7134_set_tvnorm_hw(dev);
381 }
382 
video_mux(struct saa7134_dev * dev,int input)383 static void video_mux(struct saa7134_dev *dev, int input)
384 {
385 	video_dbg("video input = %d [%s]\n",
386 		  input, saa7134_input_name[card_in(dev, input).type]);
387 	dev->ctl_input = input;
388 	set_tvnorm(dev, dev->tvnorm);
389 	saa7134_tvaudio_setinput(dev, &card_in(dev, input));
390 }
391 
392 
saa7134_set_decoder(struct saa7134_dev * dev)393 static void saa7134_set_decoder(struct saa7134_dev *dev)
394 {
395 	int luma_control, sync_control, chroma_ctrl1, mux;
396 
397 	struct saa7134_tvnorm *norm = dev->tvnorm;
398 	mux = card_in(dev, dev->ctl_input).vmux;
399 
400 	luma_control = norm->luma_control;
401 	sync_control = norm->sync_control;
402 	chroma_ctrl1 = norm->chroma_ctrl1;
403 
404 	if (mux > 5)
405 		luma_control |= 0x80; /* svideo */
406 	if (noninterlaced || dev->nosignal)
407 		sync_control |= 0x20;
408 
409 	/* switch on auto standard detection */
410 	sync_control |= SAA7134_SYNC_CTRL_AUFD;
411 	chroma_ctrl1 |= SAA7134_CHROMA_CTRL1_AUTO0;
412 	chroma_ctrl1 &= ~SAA7134_CHROMA_CTRL1_FCTC;
413 	luma_control &= ~SAA7134_LUMA_CTRL_LDEL;
414 
415 	/* setup video decoder */
416 	saa_writeb(SAA7134_INCR_DELAY,            0x08);
417 	saa_writeb(SAA7134_ANALOG_IN_CTRL1,       0xc0 | mux);
418 	saa_writeb(SAA7134_ANALOG_IN_CTRL2,       0x00);
419 
420 	saa_writeb(SAA7134_ANALOG_IN_CTRL3,       0x90);
421 	saa_writeb(SAA7134_ANALOG_IN_CTRL4,       0x90);
422 	saa_writeb(SAA7134_HSYNC_START,           0xeb);
423 	saa_writeb(SAA7134_HSYNC_STOP,            0xe0);
424 	saa_writeb(SAA7134_SOURCE_TIMING1,        norm->src_timing);
425 
426 	saa_writeb(SAA7134_SYNC_CTRL,             sync_control);
427 	saa_writeb(SAA7134_LUMA_CTRL,             luma_control);
428 	saa_writeb(SAA7134_DEC_LUMA_BRIGHT,       dev->ctl_bright);
429 
430 	saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
431 		dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
432 
433 	saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
434 		dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
435 
436 	saa_writeb(SAA7134_DEC_CHROMA_HUE,        dev->ctl_hue);
437 	saa_writeb(SAA7134_CHROMA_CTRL1,          chroma_ctrl1);
438 	saa_writeb(SAA7134_CHROMA_GAIN,           norm->chroma_gain);
439 
440 	saa_writeb(SAA7134_CHROMA_CTRL2,          norm->chroma_ctrl2);
441 	saa_writeb(SAA7134_MODE_DELAY_CTRL,       0x00);
442 
443 	saa_writeb(SAA7134_ANALOG_ADC,            0x01);
444 	saa_writeb(SAA7134_VGATE_START,           0x11);
445 	saa_writeb(SAA7134_VGATE_STOP,            0xfe);
446 	saa_writeb(SAA7134_MISC_VGATE_MSB,        norm->vgate_misc);
447 	saa_writeb(SAA7134_RAW_DATA_GAIN,         0x40);
448 	saa_writeb(SAA7134_RAW_DATA_OFFSET,       0x80);
449 }
450 
saa7134_set_tvnorm_hw(struct saa7134_dev * dev)451 void saa7134_set_tvnorm_hw(struct saa7134_dev *dev)
452 {
453 	saa7134_set_decoder(dev);
454 
455 	saa_call_all(dev, video, s_std, dev->tvnorm->id);
456 	/* Set the correct norm for the saa6752hs. This function
457 	   does nothing if there is no saa6752hs. */
458 	saa_call_empress(dev, video, s_std, dev->tvnorm->id);
459 }
460 
set_h_prescale(struct saa7134_dev * dev,int task,int prescale)461 static void set_h_prescale(struct saa7134_dev *dev, int task, int prescale)
462 {
463 	static const struct {
464 		int xpsc;
465 		int xacl;
466 		int xc2_1;
467 		int xdcg;
468 		int vpfy;
469 	} vals[] = {
470 		/* XPSC XACL XC2_1 XDCG VPFY */
471 		{    1,   0,    0,    0,   0 },
472 		{    2,   2,    1,    2,   2 },
473 		{    3,   4,    1,    3,   2 },
474 		{    4,   8,    1,    4,   2 },
475 		{    5,   8,    1,    4,   2 },
476 		{    6,   8,    1,    4,   3 },
477 		{    7,   8,    1,    4,   3 },
478 		{    8,  15,    0,    4,   3 },
479 		{    9,  15,    0,    4,   3 },
480 		{   10,  16,    1,    5,   3 },
481 	};
482 	static const int count = ARRAY_SIZE(vals);
483 	int i;
484 
485 	for (i = 0; i < count; i++)
486 		if (vals[i].xpsc == prescale)
487 			break;
488 	if (i == count)
489 		return;
490 
491 	saa_writeb(SAA7134_H_PRESCALE(task), vals[i].xpsc);
492 	saa_writeb(SAA7134_ACC_LENGTH(task), vals[i].xacl);
493 	saa_writeb(SAA7134_LEVEL_CTRL(task),
494 		   (vals[i].xc2_1 << 3) | (vals[i].xdcg));
495 	saa_andorb(SAA7134_FIR_PREFILTER_CTRL(task), 0x0f,
496 		   (vals[i].vpfy << 2) | vals[i].vpfy);
497 }
498 
set_v_scale(struct saa7134_dev * dev,int task,int yscale)499 static void set_v_scale(struct saa7134_dev *dev, int task, int yscale)
500 {
501 	int val,mirror;
502 
503 	saa_writeb(SAA7134_V_SCALE_RATIO1(task), yscale &  0xff);
504 	saa_writeb(SAA7134_V_SCALE_RATIO2(task), yscale >> 8);
505 
506 	mirror = (dev->ctl_mirror) ? 0x02 : 0x00;
507 	if (yscale < 2048) {
508 		/* LPI */
509 		video_dbg("yscale LPI yscale=%d\n", yscale);
510 		saa_writeb(SAA7134_V_FILTER(task), 0x00 | mirror);
511 		saa_writeb(SAA7134_LUMA_CONTRAST(task), 0x40);
512 		saa_writeb(SAA7134_CHROMA_SATURATION(task), 0x40);
513 	} else {
514 		/* ACM */
515 		val = 0x40 * 1024 / yscale;
516 		video_dbg("yscale ACM yscale=%d val=0x%x\n", yscale, val);
517 		saa_writeb(SAA7134_V_FILTER(task), 0x01 | mirror);
518 		saa_writeb(SAA7134_LUMA_CONTRAST(task), val);
519 		saa_writeb(SAA7134_CHROMA_SATURATION(task), val);
520 	}
521 	saa_writeb(SAA7134_LUMA_BRIGHT(task),       0x80);
522 }
523 
set_size(struct saa7134_dev * dev,int task,int width,int height,int interlace)524 static void set_size(struct saa7134_dev *dev, int task,
525 		     int width, int height, int interlace)
526 {
527 	int prescale,xscale,yscale,y_even,y_odd;
528 	int h_start, h_stop, v_start, v_stop;
529 	int div = interlace ? 2 : 1;
530 
531 	/* setup video scaler */
532 	h_start = dev->crop_current.left;
533 	v_start = dev->crop_current.top/2;
534 	h_stop  = (dev->crop_current.left + dev->crop_current.width -1);
535 	v_stop  = (dev->crop_current.top + dev->crop_current.height -1)/2;
536 
537 	saa_writeb(SAA7134_VIDEO_H_START1(task), h_start &  0xff);
538 	saa_writeb(SAA7134_VIDEO_H_START2(task), h_start >> 8);
539 	saa_writeb(SAA7134_VIDEO_H_STOP1(task),  h_stop  &  0xff);
540 	saa_writeb(SAA7134_VIDEO_H_STOP2(task),  h_stop  >> 8);
541 	saa_writeb(SAA7134_VIDEO_V_START1(task), v_start &  0xff);
542 	saa_writeb(SAA7134_VIDEO_V_START2(task), v_start >> 8);
543 	saa_writeb(SAA7134_VIDEO_V_STOP1(task),  v_stop  &  0xff);
544 	saa_writeb(SAA7134_VIDEO_V_STOP2(task),  v_stop  >> 8);
545 
546 	prescale = dev->crop_current.width / width;
547 	if (0 == prescale)
548 		prescale = 1;
549 	xscale = 1024 * dev->crop_current.width / prescale / width;
550 	yscale = 512 * div * dev->crop_current.height / height;
551 	video_dbg("prescale=%d xscale=%d yscale=%d\n",
552 		  prescale, xscale, yscale);
553 	set_h_prescale(dev,task,prescale);
554 	saa_writeb(SAA7134_H_SCALE_INC1(task),      xscale &  0xff);
555 	saa_writeb(SAA7134_H_SCALE_INC2(task),      xscale >> 8);
556 	set_v_scale(dev,task,yscale);
557 
558 	saa_writeb(SAA7134_VIDEO_PIXELS1(task),     width  & 0xff);
559 	saa_writeb(SAA7134_VIDEO_PIXELS2(task),     width  >> 8);
560 	saa_writeb(SAA7134_VIDEO_LINES1(task),      height/div & 0xff);
561 	saa_writeb(SAA7134_VIDEO_LINES2(task),      height/div >> 8);
562 
563 	/* deinterlace y offsets */
564 	y_odd  = dev->ctl_y_odd;
565 	y_even = dev->ctl_y_even;
566 	saa_writeb(SAA7134_V_PHASE_OFFSET0(task), y_odd);
567 	saa_writeb(SAA7134_V_PHASE_OFFSET1(task), y_even);
568 	saa_writeb(SAA7134_V_PHASE_OFFSET2(task), y_odd);
569 	saa_writeb(SAA7134_V_PHASE_OFFSET3(task), y_even);
570 }
571 
572 /* ------------------------------------------------------------------ */
573 
574 /*
575  * Media Controller helper functions
576  */
577 
saa7134_enable_analog_tuner(struct saa7134_dev * dev)578 static int saa7134_enable_analog_tuner(struct saa7134_dev *dev)
579 {
580 #ifdef CONFIG_MEDIA_CONTROLLER
581 	struct media_device *mdev = dev->media_dev;
582 	struct media_entity *source;
583 	struct media_link *link, *found_link = NULL;
584 	int ret, active_links = 0;
585 
586 	if (!mdev || !dev->decoder)
587 		return 0;
588 
589 	/*
590 	 * This will find the tuner that is connected into the decoder.
591 	 * Technically, this is not 100% correct, as the device may be
592 	 * using an analog input instead of the tuner. However, as we can't
593 	 * do DVB streaming while the DMA engine is being used for V4L2,
594 	 * this should be enough for the actual needs.
595 	 */
596 	list_for_each_entry(link, &dev->decoder->links, list) {
597 		if (link->sink->entity == dev->decoder) {
598 			found_link = link;
599 			if (link->flags & MEDIA_LNK_FL_ENABLED)
600 				active_links++;
601 			break;
602 		}
603 	}
604 
605 	if (active_links == 1 || !found_link)
606 		return 0;
607 
608 	source = found_link->source->entity;
609 	list_for_each_entry(link, &source->links, list) {
610 		struct media_entity *sink;
611 		int flags = 0;
612 
613 		sink = link->sink->entity;
614 
615 		if (sink == dev->decoder)
616 			flags = MEDIA_LNK_FL_ENABLED;
617 
618 		ret = media_entity_setup_link(link, flags);
619 		if (ret) {
620 			pr_err("Couldn't change link %s->%s to %s. Error %d\n",
621 			       source->name, sink->name,
622 			       flags ? "enabled" : "disabled",
623 			       ret);
624 			return ret;
625 		}
626 	}
627 #endif
628 	return 0;
629 }
630 
631 /* ------------------------------------------------------------------ */
632 
buffer_activate(struct saa7134_dev * dev,struct saa7134_buf * buf,struct saa7134_buf * next)633 static int buffer_activate(struct saa7134_dev *dev,
634 			   struct saa7134_buf *buf,
635 			   struct saa7134_buf *next)
636 {
637 	struct saa7134_dmaqueue *dmaq = buf->vb2.vb2_buf.vb2_queue->drv_priv;
638 	unsigned long base,control,bpl;
639 	unsigned long bpl_uv, lines_uv, base2, base3; /* planar */
640 
641 	video_dbg("buffer_activate buf=%p\n", buf);
642 	buf->top_seen = 0;
643 
644 	set_size(dev, TASK_A, dev->width, dev->height,
645 		 V4L2_FIELD_HAS_BOTH(dev->field));
646 	if (dev->fmt->yuv)
647 		saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x03);
648 	else
649 		saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x01);
650 	saa_writeb(SAA7134_OFMT_VIDEO_A, dev->fmt->pm);
651 
652 	/* DMA: setup channel 0 (= Video Task A0) */
653 	base  = saa7134_buffer_base(buf);
654 	if (dev->fmt->planar)
655 		bpl = dev->width;
656 	else
657 		bpl = (dev->width * dev->fmt->depth) / 8;
658 	control = SAA7134_RS_CONTROL_BURST_16 |
659 		SAA7134_RS_CONTROL_ME |
660 		(dmaq->pt.dma >> 12);
661 	if (dev->fmt->bswap)
662 		control |= SAA7134_RS_CONTROL_BSWAP;
663 	if (dev->fmt->wswap)
664 		control |= SAA7134_RS_CONTROL_WSWAP;
665 	if (V4L2_FIELD_HAS_BOTH(dev->field)) {
666 		/* interlaced */
667 		saa_writel(SAA7134_RS_BA1(0),base);
668 		saa_writel(SAA7134_RS_BA2(0),base+bpl);
669 		saa_writel(SAA7134_RS_PITCH(0),bpl*2);
670 	} else {
671 		/* non-interlaced */
672 		saa_writel(SAA7134_RS_BA1(0),base);
673 		saa_writel(SAA7134_RS_BA2(0),base);
674 		saa_writel(SAA7134_RS_PITCH(0),bpl);
675 	}
676 	saa_writel(SAA7134_RS_CONTROL(0),control);
677 
678 	if (dev->fmt->planar) {
679 		/* DMA: setup channel 4+5 (= planar task A) */
680 		bpl_uv   = bpl >> dev->fmt->hshift;
681 		lines_uv = dev->height >> dev->fmt->vshift;
682 		base2    = base + bpl * dev->height;
683 		base3    = base2 + bpl_uv * lines_uv;
684 		if (dev->fmt->uvswap)
685 			swap(base2, base3);
686 		video_dbg("uv: bpl=%ld lines=%ld base2/3=%ld/%ld\n",
687 			bpl_uv,lines_uv,base2,base3);
688 		if (V4L2_FIELD_HAS_BOTH(dev->field)) {
689 			/* interlaced */
690 			saa_writel(SAA7134_RS_BA1(4),base2);
691 			saa_writel(SAA7134_RS_BA2(4),base2+bpl_uv);
692 			saa_writel(SAA7134_RS_PITCH(4),bpl_uv*2);
693 			saa_writel(SAA7134_RS_BA1(5),base3);
694 			saa_writel(SAA7134_RS_BA2(5),base3+bpl_uv);
695 			saa_writel(SAA7134_RS_PITCH(5),bpl_uv*2);
696 		} else {
697 			/* non-interlaced */
698 			saa_writel(SAA7134_RS_BA1(4),base2);
699 			saa_writel(SAA7134_RS_BA2(4),base2);
700 			saa_writel(SAA7134_RS_PITCH(4),bpl_uv);
701 			saa_writel(SAA7134_RS_BA1(5),base3);
702 			saa_writel(SAA7134_RS_BA2(5),base3);
703 			saa_writel(SAA7134_RS_PITCH(5),bpl_uv);
704 		}
705 		saa_writel(SAA7134_RS_CONTROL(4),control);
706 		saa_writel(SAA7134_RS_CONTROL(5),control);
707 	}
708 
709 	/* start DMA */
710 	saa7134_set_dmabits(dev);
711 	mod_timer(&dmaq->timeout, jiffies + BUFFER_TIMEOUT);
712 	return 0;
713 }
714 
buffer_init(struct vb2_buffer * vb2)715 static int buffer_init(struct vb2_buffer *vb2)
716 {
717 	struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv;
718 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb2);
719 	struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
720 
721 	dmaq->curr = NULL;
722 	buf->activate = buffer_activate;
723 	return 0;
724 }
725 
buffer_prepare(struct vb2_buffer * vb2)726 static int buffer_prepare(struct vb2_buffer *vb2)
727 {
728 	struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv;
729 	struct saa7134_dev *dev = dmaq->dev;
730 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb2);
731 	struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
732 	struct sg_table *dma = vb2_dma_sg_plane_desc(vb2, 0);
733 	unsigned int size;
734 
735 	if (dma->sgl->offset) {
736 		pr_err("The buffer is not page-aligned\n");
737 		return -EINVAL;
738 	}
739 	size = (dev->width * dev->height * dev->fmt->depth) >> 3;
740 	if (vb2_plane_size(vb2, 0) < size)
741 		return -EINVAL;
742 
743 	vb2_set_plane_payload(vb2, 0, size);
744 	vbuf->field = dev->field;
745 
746 	return saa7134_pgtable_build(dev->pci, &dmaq->pt, dma->sgl, dma->nents,
747 				    saa7134_buffer_startpage(buf));
748 }
749 
queue_setup(struct vb2_queue * q,unsigned int * nbuffers,unsigned int * nplanes,unsigned int sizes[],struct device * alloc_devs[])750 static int queue_setup(struct vb2_queue *q,
751 			   unsigned int *nbuffers, unsigned int *nplanes,
752 			   unsigned int sizes[], struct device *alloc_devs[])
753 {
754 	struct saa7134_dmaqueue *dmaq = q->drv_priv;
755 	struct saa7134_dev *dev = dmaq->dev;
756 	int size = dev->fmt->depth * dev->width * dev->height >> 3;
757 
758 	if (dev->width    < 48 ||
759 	    dev->height   < 32 ||
760 	    dev->width/4  > dev->crop_current.width  ||
761 	    dev->height/4 > dev->crop_current.height ||
762 	    dev->width    > dev->crop_bounds.width  ||
763 	    dev->height   > dev->crop_bounds.height)
764 		return -EINVAL;
765 
766 	*nbuffers = saa7134_buffer_count(size, *nbuffers);
767 	*nplanes = 1;
768 	sizes[0] = size;
769 
770 	saa7134_enable_analog_tuner(dev);
771 
772 	return 0;
773 }
774 
775 /*
776  * move buffer to hardware queue
777  */
saa7134_vb2_buffer_queue(struct vb2_buffer * vb)778 void saa7134_vb2_buffer_queue(struct vb2_buffer *vb)
779 {
780 	struct saa7134_dmaqueue *dmaq = vb->vb2_queue->drv_priv;
781 	struct saa7134_dev *dev = dmaq->dev;
782 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
783 	struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
784 
785 	saa7134_buffer_queue(dev, dmaq, buf);
786 }
787 EXPORT_SYMBOL_GPL(saa7134_vb2_buffer_queue);
788 
saa7134_vb2_start_streaming(struct vb2_queue * vq,unsigned int count)789 int saa7134_vb2_start_streaming(struct vb2_queue *vq, unsigned int count)
790 {
791 	struct saa7134_dmaqueue *dmaq = vq->drv_priv;
792 	struct saa7134_dev *dev = dmaq->dev;
793 
794 	/*
795 	 * Planar video capture and TS share the same DMA channel,
796 	 * so only one can be active at a time.
797 	 */
798 	if (card_is_empress(dev) && vb2_is_busy(&dev->empress_vbq) &&
799 	    dmaq == &dev->video_q && dev->fmt->planar) {
800 		struct saa7134_buf *buf, *tmp;
801 
802 		list_for_each_entry_safe(buf, tmp, &dmaq->queue, entry) {
803 			list_del(&buf->entry);
804 			vb2_buffer_done(&buf->vb2.vb2_buf,
805 					VB2_BUF_STATE_QUEUED);
806 		}
807 		if (dmaq->curr) {
808 			vb2_buffer_done(&dmaq->curr->vb2.vb2_buf,
809 					VB2_BUF_STATE_QUEUED);
810 			dmaq->curr = NULL;
811 		}
812 		return -EBUSY;
813 	}
814 
815 	/* The SAA7134 has a 1K FIFO; the datasheet suggests that when
816 	 * configured conservatively, there's 22 usec of buffering for video.
817 	 * We therefore request a DMA latency of 20 usec, giving us 2 usec of
818 	 * margin in case the FIFO is configured differently to the datasheet.
819 	 * Unfortunately, I lack register-level documentation to check the
820 	 * Linux FIFO setup and confirm the perfect value.
821 	 */
822 	if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
823 	    (dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
824 		cpu_latency_qos_add_request(&dev->qos_request, 20);
825 	dmaq->seq_nr = 0;
826 
827 	return 0;
828 }
829 
saa7134_vb2_stop_streaming(struct vb2_queue * vq)830 void saa7134_vb2_stop_streaming(struct vb2_queue *vq)
831 {
832 	struct saa7134_dmaqueue *dmaq = vq->drv_priv;
833 	struct saa7134_dev *dev = dmaq->dev;
834 
835 	saa7134_stop_streaming(dev, dmaq);
836 
837 	if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
838 	    (dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
839 		cpu_latency_qos_remove_request(&dev->qos_request);
840 }
841 
842 static const struct vb2_ops vb2_qops = {
843 	.queue_setup	= queue_setup,
844 	.buf_init	= buffer_init,
845 	.buf_prepare	= buffer_prepare,
846 	.buf_queue	= saa7134_vb2_buffer_queue,
847 	.wait_prepare	= vb2_ops_wait_prepare,
848 	.wait_finish	= vb2_ops_wait_finish,
849 	.start_streaming = saa7134_vb2_start_streaming,
850 	.stop_streaming = saa7134_vb2_stop_streaming,
851 };
852 
853 /* ------------------------------------------------------------------ */
854 
saa7134_s_ctrl(struct v4l2_ctrl * ctrl)855 static int saa7134_s_ctrl(struct v4l2_ctrl *ctrl)
856 {
857 	struct saa7134_dev *dev = container_of(ctrl->handler, struct saa7134_dev, ctrl_handler);
858 
859 	switch (ctrl->id) {
860 	case V4L2_CID_BRIGHTNESS:
861 		dev->ctl_bright = ctrl->val;
862 		saa_writeb(SAA7134_DEC_LUMA_BRIGHT, ctrl->val);
863 		break;
864 	case V4L2_CID_HUE:
865 		dev->ctl_hue = ctrl->val;
866 		saa_writeb(SAA7134_DEC_CHROMA_HUE, ctrl->val);
867 		break;
868 	case V4L2_CID_CONTRAST:
869 		dev->ctl_contrast = ctrl->val;
870 		saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
871 			   dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
872 		break;
873 	case V4L2_CID_SATURATION:
874 		dev->ctl_saturation = ctrl->val;
875 		saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
876 			   dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
877 		break;
878 	case V4L2_CID_AUDIO_MUTE:
879 		dev->ctl_mute = ctrl->val;
880 		saa7134_tvaudio_setmute(dev);
881 		break;
882 	case V4L2_CID_AUDIO_VOLUME:
883 		dev->ctl_volume = ctrl->val;
884 		saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
885 		break;
886 	case V4L2_CID_PRIVATE_INVERT:
887 		dev->ctl_invert = ctrl->val;
888 		saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
889 			   dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
890 		saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
891 			   dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
892 		break;
893 	case V4L2_CID_HFLIP:
894 		dev->ctl_mirror = ctrl->val;
895 		break;
896 	case V4L2_CID_PRIVATE_Y_EVEN:
897 		dev->ctl_y_even = ctrl->val;
898 		break;
899 	case V4L2_CID_PRIVATE_Y_ODD:
900 		dev->ctl_y_odd = ctrl->val;
901 		break;
902 	case V4L2_CID_PRIVATE_AUTOMUTE:
903 	{
904 		struct v4l2_priv_tun_config tda9887_cfg;
905 
906 		tda9887_cfg.tuner = TUNER_TDA9887;
907 		tda9887_cfg.priv = &dev->tda9887_conf;
908 
909 		dev->ctl_automute = ctrl->val;
910 		if (dev->tda9887_conf) {
911 			if (dev->ctl_automute)
912 				dev->tda9887_conf |= TDA9887_AUTOMUTE;
913 			else
914 				dev->tda9887_conf &= ~TDA9887_AUTOMUTE;
915 
916 			saa_call_all(dev, tuner, s_config, &tda9887_cfg);
917 		}
918 		break;
919 	}
920 	default:
921 		return -EINVAL;
922 	}
923 	return 0;
924 }
925 
926 /* ------------------------------------------------------------------ */
927 
video_open(struct file * file)928 static int video_open(struct file *file)
929 {
930 	struct video_device *vdev = video_devdata(file);
931 	struct saa7134_dev *dev = video_drvdata(file);
932 	int ret = v4l2_fh_open(file);
933 
934 	if (ret < 0)
935 		return ret;
936 
937 	mutex_lock(&dev->lock);
938 	if (vdev->vfl_type == VFL_TYPE_RADIO) {
939 		/* switch to radio mode */
940 		saa7134_tvaudio_setinput(dev, &card(dev).radio);
941 		saa_call_all(dev, tuner, s_radio);
942 	} else {
943 		/* switch to video/vbi mode */
944 		video_mux(dev, dev->ctl_input);
945 	}
946 	mutex_unlock(&dev->lock);
947 
948 	return 0;
949 }
950 
video_release(struct file * file)951 static int video_release(struct file *file)
952 {
953 	struct video_device *vdev = video_devdata(file);
954 	struct saa7134_dev *dev = video_drvdata(file);
955 	struct saa6588_command cmd;
956 
957 	mutex_lock(&dev->lock);
958 	saa7134_tvaudio_close(dev);
959 
960 	if (vdev->vfl_type == VFL_TYPE_RADIO)
961 		v4l2_fh_release(file);
962 	else
963 		_vb2_fop_release(file, NULL);
964 
965 	/* ts-capture will not work in planar mode, so turn it off Hac: 04.05*/
966 	saa_andorb(SAA7134_OFMT_VIDEO_A, 0x1f, 0);
967 	saa_andorb(SAA7134_OFMT_VIDEO_B, 0x1f, 0);
968 	saa_andorb(SAA7134_OFMT_DATA_A, 0x1f, 0);
969 	saa_andorb(SAA7134_OFMT_DATA_B, 0x1f, 0);
970 
971 	saa_call_all(dev, tuner, standby);
972 	if (vdev->vfl_type == VFL_TYPE_RADIO)
973 		saa_call_all(dev, core, command, SAA6588_CMD_CLOSE, &cmd);
974 	mutex_unlock(&dev->lock);
975 
976 	return 0;
977 }
978 
radio_read(struct file * file,char __user * data,size_t count,loff_t * ppos)979 static ssize_t radio_read(struct file *file, char __user *data,
980 			 size_t count, loff_t *ppos)
981 {
982 	struct saa7134_dev *dev = video_drvdata(file);
983 	struct saa6588_command cmd;
984 
985 	cmd.block_count = count/3;
986 	cmd.nonblocking = file->f_flags & O_NONBLOCK;
987 	cmd.buffer = data;
988 	cmd.instance = file;
989 	cmd.result = -ENODEV;
990 
991 	mutex_lock(&dev->lock);
992 	saa_call_all(dev, core, command, SAA6588_CMD_READ, &cmd);
993 	mutex_unlock(&dev->lock);
994 
995 	return cmd.result;
996 }
997 
radio_poll(struct file * file,poll_table * wait)998 static __poll_t radio_poll(struct file *file, poll_table *wait)
999 {
1000 	struct saa7134_dev *dev = video_drvdata(file);
1001 	struct saa6588_command cmd;
1002 	__poll_t rc = v4l2_ctrl_poll(file, wait);
1003 
1004 	cmd.instance = file;
1005 	cmd.event_list = wait;
1006 	cmd.poll_mask = 0;
1007 	mutex_lock(&dev->lock);
1008 	saa_call_all(dev, core, command, SAA6588_CMD_POLL, &cmd);
1009 	mutex_unlock(&dev->lock);
1010 
1011 	return rc | cmd.poll_mask;
1012 }
1013 
1014 /* ------------------------------------------------------------------ */
1015 
saa7134_try_get_set_fmt_vbi_cap(struct file * file,void * priv,struct v4l2_format * f)1016 static int saa7134_try_get_set_fmt_vbi_cap(struct file *file, void *priv,
1017 						struct v4l2_format *f)
1018 {
1019 	struct saa7134_dev *dev = video_drvdata(file);
1020 	struct saa7134_tvnorm *norm = dev->tvnorm;
1021 
1022 	memset(&f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1023 	f->fmt.vbi.sampling_rate = 6750000 * 4;
1024 	f->fmt.vbi.samples_per_line = 2048 /* VBI_LINE_LENGTH */;
1025 	f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1026 	f->fmt.vbi.offset = 64 * 4;
1027 	f->fmt.vbi.start[0] = norm->vbi_v_start_0;
1028 	f->fmt.vbi.count[0] = norm->vbi_v_stop_0 - norm->vbi_v_start_0 +1;
1029 	f->fmt.vbi.start[1] = norm->vbi_v_start_1;
1030 	f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1031 	f->fmt.vbi.flags = 0; /* VBI_UNSYNC VBI_INTERLACED */
1032 
1033 	return 0;
1034 }
1035 
saa7134_g_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)1036 static int saa7134_g_fmt_vid_cap(struct file *file, void *priv,
1037 				struct v4l2_format *f)
1038 {
1039 	struct saa7134_dev *dev = video_drvdata(file);
1040 
1041 	f->fmt.pix.width        = dev->width;
1042 	f->fmt.pix.height       = dev->height;
1043 	f->fmt.pix.field        = dev->field;
1044 	f->fmt.pix.pixelformat  = dev->fmt->fourcc;
1045 	if (dev->fmt->planar)
1046 		f->fmt.pix.bytesperline = f->fmt.pix.width;
1047 	else
1048 		f->fmt.pix.bytesperline =
1049 			(f->fmt.pix.width * dev->fmt->depth) / 8;
1050 	f->fmt.pix.sizeimage =
1051 		(f->fmt.pix.height * f->fmt.pix.width * dev->fmt->depth) / 8;
1052 	f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
1053 	return 0;
1054 }
1055 
saa7134_try_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)1056 static int saa7134_try_fmt_vid_cap(struct file *file, void *priv,
1057 						struct v4l2_format *f)
1058 {
1059 	struct saa7134_dev *dev = video_drvdata(file);
1060 	struct saa7134_format *fmt;
1061 	enum v4l2_field field;
1062 	unsigned int maxw, maxh;
1063 
1064 	fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1065 	if (NULL == fmt)
1066 		return -EINVAL;
1067 
1068 	field = f->fmt.pix.field;
1069 	maxw  = min(dev->crop_current.width*4,  dev->crop_bounds.width);
1070 	maxh  = min(dev->crop_current.height*4, dev->crop_bounds.height);
1071 
1072 	if (V4L2_FIELD_ANY == field) {
1073 		field = (f->fmt.pix.height > maxh/2)
1074 			? V4L2_FIELD_INTERLACED
1075 			: V4L2_FIELD_BOTTOM;
1076 	}
1077 	switch (field) {
1078 	case V4L2_FIELD_TOP:
1079 	case V4L2_FIELD_BOTTOM:
1080 		maxh = maxh / 2;
1081 		break;
1082 	default:
1083 		field = V4L2_FIELD_INTERLACED;
1084 		break;
1085 	}
1086 
1087 	f->fmt.pix.field = field;
1088 	if (f->fmt.pix.width  < 48)
1089 		f->fmt.pix.width  = 48;
1090 	if (f->fmt.pix.height < 32)
1091 		f->fmt.pix.height = 32;
1092 	if (f->fmt.pix.width > maxw)
1093 		f->fmt.pix.width = maxw;
1094 	if (f->fmt.pix.height > maxh)
1095 		f->fmt.pix.height = maxh;
1096 	f->fmt.pix.width &= ~0x03;
1097 	if (fmt->planar)
1098 		f->fmt.pix.bytesperline = f->fmt.pix.width;
1099 	else
1100 		f->fmt.pix.bytesperline =
1101 			(f->fmt.pix.width * fmt->depth) / 8;
1102 	f->fmt.pix.sizeimage =
1103 		(f->fmt.pix.height * f->fmt.pix.width * fmt->depth) / 8;
1104 	f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
1105 
1106 	return 0;
1107 }
1108 
saa7134_s_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)1109 static int saa7134_s_fmt_vid_cap(struct file *file, void *priv,
1110 					struct v4l2_format *f)
1111 {
1112 	struct saa7134_dev *dev = video_drvdata(file);
1113 	int err;
1114 
1115 	err = saa7134_try_fmt_vid_cap(file, priv, f);
1116 	if (0 != err)
1117 		return err;
1118 
1119 	dev->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1120 	dev->width = f->fmt.pix.width;
1121 	dev->height = f->fmt.pix.height;
1122 	dev->field = f->fmt.pix.field;
1123 	return 0;
1124 }
1125 
saa7134_enum_input(struct file * file,void * priv,struct v4l2_input * i)1126 int saa7134_enum_input(struct file *file, void *priv, struct v4l2_input *i)
1127 {
1128 	struct saa7134_dev *dev = video_drvdata(file);
1129 	unsigned int n;
1130 
1131 	n = i->index;
1132 	if (n >= SAA7134_INPUT_MAX)
1133 		return -EINVAL;
1134 	if (card_in(dev, i->index).type == SAA7134_NO_INPUT)
1135 		return -EINVAL;
1136 	i->index = n;
1137 	strscpy(i->name, saa7134_input_name[card_in(dev, n).type],
1138 		sizeof(i->name));
1139 	switch (card_in(dev, n).type) {
1140 	case SAA7134_INPUT_TV:
1141 	case SAA7134_INPUT_TV_MONO:
1142 		i->type = V4L2_INPUT_TYPE_TUNER;
1143 		break;
1144 	default:
1145 		i->type  = V4L2_INPUT_TYPE_CAMERA;
1146 		break;
1147 	}
1148 	if (n == dev->ctl_input) {
1149 		int v1 = saa_readb(SAA7134_STATUS_VIDEO1);
1150 		int v2 = saa_readb(SAA7134_STATUS_VIDEO2);
1151 
1152 		if (0 != (v1 & 0x40))
1153 			i->status |= V4L2_IN_ST_NO_H_LOCK;
1154 		if (0 != (v2 & 0x40))
1155 			i->status |= V4L2_IN_ST_NO_SIGNAL;
1156 		if (0 != (v2 & 0x0e))
1157 			i->status |= V4L2_IN_ST_MACROVISION;
1158 	}
1159 	i->std = SAA7134_NORMS;
1160 	return 0;
1161 }
1162 EXPORT_SYMBOL_GPL(saa7134_enum_input);
1163 
saa7134_g_input(struct file * file,void * priv,unsigned int * i)1164 int saa7134_g_input(struct file *file, void *priv, unsigned int *i)
1165 {
1166 	struct saa7134_dev *dev = video_drvdata(file);
1167 
1168 	*i = dev->ctl_input;
1169 	return 0;
1170 }
1171 EXPORT_SYMBOL_GPL(saa7134_g_input);
1172 
saa7134_s_input(struct file * file,void * priv,unsigned int i)1173 int saa7134_s_input(struct file *file, void *priv, unsigned int i)
1174 {
1175 	struct saa7134_dev *dev = video_drvdata(file);
1176 
1177 	if (i >= SAA7134_INPUT_MAX)
1178 		return -EINVAL;
1179 	if (card_in(dev, i).type == SAA7134_NO_INPUT)
1180 		return -EINVAL;
1181 	video_mux(dev, i);
1182 	return 0;
1183 }
1184 EXPORT_SYMBOL_GPL(saa7134_s_input);
1185 
saa7134_querycap(struct file * file,void * priv,struct v4l2_capability * cap)1186 int saa7134_querycap(struct file *file, void *priv,
1187 					struct v4l2_capability *cap)
1188 {
1189 	struct saa7134_dev *dev = video_drvdata(file);
1190 
1191 	strscpy(cap->driver, "saa7134", sizeof(cap->driver));
1192 	strscpy(cap->card, saa7134_boards[dev->board].name,
1193 		sizeof(cap->card));
1194 	cap->capabilities = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1195 			    V4L2_CAP_RADIO | V4L2_CAP_VIDEO_CAPTURE |
1196 			    V4L2_CAP_VBI_CAPTURE | V4L2_CAP_DEVICE_CAPS;
1197 	if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1198 		cap->capabilities |= V4L2_CAP_TUNER;
1199 	if (dev->has_rds)
1200 		cap->capabilities |= V4L2_CAP_RDS_CAPTURE;
1201 
1202 	return 0;
1203 }
1204 EXPORT_SYMBOL_GPL(saa7134_querycap);
1205 
saa7134_s_std(struct file * file,void * priv,v4l2_std_id id)1206 int saa7134_s_std(struct file *file, void *priv, v4l2_std_id id)
1207 {
1208 	struct saa7134_dev *dev = video_drvdata(file);
1209 	unsigned int i;
1210 	v4l2_std_id fixup;
1211 
1212 	for (i = 0; i < TVNORMS; i++)
1213 		if (id == tvnorms[i].id)
1214 			break;
1215 
1216 	if (i == TVNORMS)
1217 		for (i = 0; i < TVNORMS; i++)
1218 			if (id & tvnorms[i].id)
1219 				break;
1220 	if (i == TVNORMS)
1221 		return -EINVAL;
1222 
1223 	if ((id & V4L2_STD_SECAM) && (secam[0] != '-')) {
1224 		if (secam[0] == 'L' || secam[0] == 'l') {
1225 			if (secam[1] == 'C' || secam[1] == 'c')
1226 				fixup = V4L2_STD_SECAM_LC;
1227 			else
1228 				fixup = V4L2_STD_SECAM_L;
1229 		} else {
1230 			if (secam[0] == 'D' || secam[0] == 'd')
1231 				fixup = V4L2_STD_SECAM_DK;
1232 			else
1233 				fixup = V4L2_STD_SECAM;
1234 		}
1235 		for (i = 0; i < TVNORMS; i++) {
1236 			if (fixup == tvnorms[i].id)
1237 				break;
1238 		}
1239 		if (i == TVNORMS)
1240 			return -EINVAL;
1241 	}
1242 
1243 	set_tvnorm(dev, &tvnorms[i]);
1244 
1245 	saa7134_tvaudio_do_scan(dev);
1246 	return 0;
1247 }
1248 EXPORT_SYMBOL_GPL(saa7134_s_std);
1249 
saa7134_g_std(struct file * file,void * priv,v4l2_std_id * id)1250 int saa7134_g_std(struct file *file, void *priv, v4l2_std_id *id)
1251 {
1252 	struct saa7134_dev *dev = video_drvdata(file);
1253 
1254 	*id = dev->tvnorm->id;
1255 	return 0;
1256 }
1257 EXPORT_SYMBOL_GPL(saa7134_g_std);
1258 
saa7134_read_std(struct saa7134_dev * dev)1259 static v4l2_std_id saa7134_read_std(struct saa7134_dev *dev)
1260 {
1261 	static v4l2_std_id stds[] = {
1262 		V4L2_STD_UNKNOWN,
1263 		V4L2_STD_NTSC,
1264 		V4L2_STD_PAL,
1265 		V4L2_STD_SECAM };
1266 
1267 	v4l2_std_id result = 0;
1268 
1269 	u8 st1 = saa_readb(SAA7134_STATUS_VIDEO1);
1270 	u8 st2 = saa_readb(SAA7134_STATUS_VIDEO2);
1271 
1272 	if (!(st2 & 0x1)) /* RDCAP == 0 */
1273 		result = V4L2_STD_UNKNOWN;
1274 	else
1275 		result = stds[st1 & 0x03];
1276 
1277 	return result;
1278 }
1279 
saa7134_querystd(struct file * file,void * priv,v4l2_std_id * std)1280 int saa7134_querystd(struct file *file, void *priv, v4l2_std_id *std)
1281 {
1282 	struct saa7134_dev *dev = video_drvdata(file);
1283 	*std &= saa7134_read_std(dev);
1284 	return 0;
1285 }
1286 EXPORT_SYMBOL_GPL(saa7134_querystd);
1287 
saa7134_g_pixelaspect(struct file * file,void * priv,int type,struct v4l2_fract * f)1288 static int saa7134_g_pixelaspect(struct file *file, void *priv,
1289 				 int type, struct v4l2_fract *f)
1290 {
1291 	struct saa7134_dev *dev = video_drvdata(file);
1292 
1293 	if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1294 		return -EINVAL;
1295 
1296 	if (dev->tvnorm->id & V4L2_STD_525_60) {
1297 		f->numerator   = 11;
1298 		f->denominator = 10;
1299 	}
1300 	if (dev->tvnorm->id & V4L2_STD_625_50) {
1301 		f->numerator   = 54;
1302 		f->denominator = 59;
1303 	}
1304 	return 0;
1305 }
1306 
saa7134_g_selection(struct file * file,void * f,struct v4l2_selection * sel)1307 static int saa7134_g_selection(struct file *file, void *f, struct v4l2_selection *sel)
1308 {
1309 	struct saa7134_dev *dev = video_drvdata(file);
1310 
1311 	if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1312 		return -EINVAL;
1313 
1314 	switch (sel->target) {
1315 	case V4L2_SEL_TGT_CROP:
1316 		sel->r = dev->crop_current;
1317 		break;
1318 	case V4L2_SEL_TGT_CROP_DEFAULT:
1319 		sel->r = dev->crop_defrect;
1320 		break;
1321 	case V4L2_SEL_TGT_CROP_BOUNDS:
1322 		sel->r  = dev->crop_bounds;
1323 		break;
1324 	default:
1325 		return -EINVAL;
1326 	}
1327 	return 0;
1328 }
1329 
saa7134_s_selection(struct file * file,void * f,struct v4l2_selection * sel)1330 static int saa7134_s_selection(struct file *file, void *f, struct v4l2_selection *sel)
1331 {
1332 	struct saa7134_dev *dev = video_drvdata(file);
1333 	struct v4l2_rect *b = &dev->crop_bounds;
1334 	struct v4l2_rect *c = &dev->crop_current;
1335 
1336 	if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1337 		return -EINVAL;
1338 
1339 	if (sel->target != V4L2_SEL_TGT_CROP)
1340 		return -EINVAL;
1341 
1342 	if (vb2_is_streaming(&dev->video_vbq))
1343 		return -EBUSY;
1344 
1345 	*c = sel->r;
1346 	if (c->top < b->top)
1347 		c->top = b->top;
1348 	if (c->top > b->top + b->height)
1349 		c->top = b->top + b->height;
1350 	if (c->height > b->top - c->top + b->height)
1351 		c->height = b->top - c->top + b->height;
1352 
1353 	if (c->left < b->left)
1354 		c->left = b->left;
1355 	if (c->left > b->left + b->width)
1356 		c->left = b->left + b->width;
1357 	if (c->width > b->left - c->left + b->width)
1358 		c->width = b->left - c->left + b->width;
1359 	sel->r = *c;
1360 	return 0;
1361 }
1362 
saa7134_g_tuner(struct file * file,void * priv,struct v4l2_tuner * t)1363 int saa7134_g_tuner(struct file *file, void *priv,
1364 					struct v4l2_tuner *t)
1365 {
1366 	struct saa7134_dev *dev = video_drvdata(file);
1367 	int n;
1368 
1369 	if (0 != t->index)
1370 		return -EINVAL;
1371 	memset(t, 0, sizeof(*t));
1372 	for (n = 0; n < SAA7134_INPUT_MAX; n++) {
1373 		if (card_in(dev, n).type == SAA7134_INPUT_TV ||
1374 		    card_in(dev, n).type == SAA7134_INPUT_TV_MONO)
1375 			break;
1376 	}
1377 	if (n == SAA7134_INPUT_MAX)
1378 		return -EINVAL;
1379 	if (card_in(dev, n).type != SAA7134_NO_INPUT) {
1380 		strscpy(t->name, "Television", sizeof(t->name));
1381 		t->type = V4L2_TUNER_ANALOG_TV;
1382 		saa_call_all(dev, tuner, g_tuner, t);
1383 		t->capability = V4L2_TUNER_CAP_NORM |
1384 			V4L2_TUNER_CAP_STEREO |
1385 			V4L2_TUNER_CAP_LANG1 |
1386 			V4L2_TUNER_CAP_LANG2;
1387 		t->rxsubchans = saa7134_tvaudio_getstereo(dev);
1388 		t->audmode = saa7134_tvaudio_rx2mode(t->rxsubchans);
1389 	}
1390 	if (0 != (saa_readb(SAA7134_STATUS_VIDEO1) & 0x03))
1391 		t->signal = 0xffff;
1392 	return 0;
1393 }
1394 EXPORT_SYMBOL_GPL(saa7134_g_tuner);
1395 
saa7134_s_tuner(struct file * file,void * priv,const struct v4l2_tuner * t)1396 int saa7134_s_tuner(struct file *file, void *priv,
1397 					const struct v4l2_tuner *t)
1398 {
1399 	struct saa7134_dev *dev = video_drvdata(file);
1400 	int rx, mode;
1401 
1402 	if (0 != t->index)
1403 		return -EINVAL;
1404 
1405 	mode = dev->thread.mode;
1406 	if (UNSET == mode) {
1407 		rx   = saa7134_tvaudio_getstereo(dev);
1408 		mode = saa7134_tvaudio_rx2mode(rx);
1409 	}
1410 	if (mode != t->audmode)
1411 		dev->thread.mode = t->audmode;
1412 
1413 	return 0;
1414 }
1415 EXPORT_SYMBOL_GPL(saa7134_s_tuner);
1416 
saa7134_g_frequency(struct file * file,void * priv,struct v4l2_frequency * f)1417 int saa7134_g_frequency(struct file *file, void *priv,
1418 					struct v4l2_frequency *f)
1419 {
1420 	struct saa7134_dev *dev = video_drvdata(file);
1421 
1422 	if (0 != f->tuner)
1423 		return -EINVAL;
1424 
1425 	saa_call_all(dev, tuner, g_frequency, f);
1426 
1427 	return 0;
1428 }
1429 EXPORT_SYMBOL_GPL(saa7134_g_frequency);
1430 
saa7134_s_frequency(struct file * file,void * priv,const struct v4l2_frequency * f)1431 int saa7134_s_frequency(struct file *file, void *priv,
1432 					const struct v4l2_frequency *f)
1433 {
1434 	struct saa7134_dev *dev = video_drvdata(file);
1435 
1436 	if (0 != f->tuner)
1437 		return -EINVAL;
1438 
1439 	saa_call_all(dev, tuner, s_frequency, f);
1440 
1441 	saa7134_tvaudio_do_scan(dev);
1442 	return 0;
1443 }
1444 EXPORT_SYMBOL_GPL(saa7134_s_frequency);
1445 
saa7134_enum_fmt_vid_cap(struct file * file,void * priv,struct v4l2_fmtdesc * f)1446 static int saa7134_enum_fmt_vid_cap(struct file *file, void  *priv,
1447 					struct v4l2_fmtdesc *f)
1448 {
1449 	if (f->index >= FORMATS)
1450 		return -EINVAL;
1451 
1452 	f->pixelformat = formats[f->index].fourcc;
1453 
1454 	return 0;
1455 }
1456 
1457 #ifdef CONFIG_VIDEO_ADV_DEBUG
vidioc_g_register(struct file * file,void * priv,struct v4l2_dbg_register * reg)1458 static int vidioc_g_register (struct file *file, void *priv,
1459 			      struct v4l2_dbg_register *reg)
1460 {
1461 	struct saa7134_dev *dev = video_drvdata(file);
1462 
1463 	reg->val = saa_readb(reg->reg & 0xffffff);
1464 	reg->size = 1;
1465 	return 0;
1466 }
1467 
vidioc_s_register(struct file * file,void * priv,const struct v4l2_dbg_register * reg)1468 static int vidioc_s_register (struct file *file, void *priv,
1469 				const struct v4l2_dbg_register *reg)
1470 {
1471 	struct saa7134_dev *dev = video_drvdata(file);
1472 
1473 	saa_writeb(reg->reg & 0xffffff, reg->val);
1474 	return 0;
1475 }
1476 #endif
1477 
radio_g_tuner(struct file * file,void * priv,struct v4l2_tuner * t)1478 static int radio_g_tuner(struct file *file, void *priv,
1479 					struct v4l2_tuner *t)
1480 {
1481 	struct saa7134_dev *dev = video_drvdata(file);
1482 
1483 	if (0 != t->index)
1484 		return -EINVAL;
1485 
1486 	strscpy(t->name, "Radio", sizeof(t->name));
1487 
1488 	saa_call_all(dev, tuner, g_tuner, t);
1489 	t->audmode &= V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO;
1490 	if (dev->input->amux == TV) {
1491 		t->signal = 0xf800 - ((saa_readb(0x581) & 0x1f) << 11);
1492 		t->rxsubchans = (saa_readb(0x529) & 0x08) ?
1493 				V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO;
1494 	}
1495 	return 0;
1496 }
radio_s_tuner(struct file * file,void * priv,const struct v4l2_tuner * t)1497 static int radio_s_tuner(struct file *file, void *priv,
1498 					const struct v4l2_tuner *t)
1499 {
1500 	struct saa7134_dev *dev = video_drvdata(file);
1501 
1502 	if (0 != t->index)
1503 		return -EINVAL;
1504 
1505 	saa_call_all(dev, tuner, s_tuner, t);
1506 	return 0;
1507 }
1508 
1509 static const struct v4l2_file_operations video_fops =
1510 {
1511 	.owner	  = THIS_MODULE,
1512 	.open	  = video_open,
1513 	.release  = video_release,
1514 	.read	  = vb2_fop_read,
1515 	.poll     = vb2_fop_poll,
1516 	.mmap	  = vb2_fop_mmap,
1517 	.unlocked_ioctl	  = video_ioctl2,
1518 };
1519 
1520 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1521 	.vidioc_querycap		= saa7134_querycap,
1522 	.vidioc_enum_fmt_vid_cap	= saa7134_enum_fmt_vid_cap,
1523 	.vidioc_g_fmt_vid_cap		= saa7134_g_fmt_vid_cap,
1524 	.vidioc_try_fmt_vid_cap		= saa7134_try_fmt_vid_cap,
1525 	.vidioc_s_fmt_vid_cap		= saa7134_s_fmt_vid_cap,
1526 	.vidioc_g_fmt_vbi_cap		= saa7134_try_get_set_fmt_vbi_cap,
1527 	.vidioc_try_fmt_vbi_cap		= saa7134_try_get_set_fmt_vbi_cap,
1528 	.vidioc_s_fmt_vbi_cap		= saa7134_try_get_set_fmt_vbi_cap,
1529 	.vidioc_g_pixelaspect		= saa7134_g_pixelaspect,
1530 	.vidioc_reqbufs			= vb2_ioctl_reqbufs,
1531 	.vidioc_querybuf		= vb2_ioctl_querybuf,
1532 	.vidioc_qbuf			= vb2_ioctl_qbuf,
1533 	.vidioc_dqbuf			= vb2_ioctl_dqbuf,
1534 	.vidioc_expbuf			= vb2_ioctl_expbuf,
1535 	.vidioc_s_std			= saa7134_s_std,
1536 	.vidioc_g_std			= saa7134_g_std,
1537 	.vidioc_querystd		= saa7134_querystd,
1538 	.vidioc_enum_input		= saa7134_enum_input,
1539 	.vidioc_g_input			= saa7134_g_input,
1540 	.vidioc_s_input			= saa7134_s_input,
1541 	.vidioc_streamon		= vb2_ioctl_streamon,
1542 	.vidioc_streamoff		= vb2_ioctl_streamoff,
1543 	.vidioc_g_tuner			= saa7134_g_tuner,
1544 	.vidioc_s_tuner			= saa7134_s_tuner,
1545 	.vidioc_g_selection		= saa7134_g_selection,
1546 	.vidioc_s_selection		= saa7134_s_selection,
1547 	.vidioc_g_frequency		= saa7134_g_frequency,
1548 	.vidioc_s_frequency		= saa7134_s_frequency,
1549 #ifdef CONFIG_VIDEO_ADV_DEBUG
1550 	.vidioc_g_register              = vidioc_g_register,
1551 	.vidioc_s_register              = vidioc_s_register,
1552 #endif
1553 	.vidioc_log_status		= v4l2_ctrl_log_status,
1554 	.vidioc_subscribe_event		= v4l2_ctrl_subscribe_event,
1555 	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,
1556 };
1557 
1558 static const struct v4l2_file_operations radio_fops = {
1559 	.owner	  = THIS_MODULE,
1560 	.open	  = video_open,
1561 	.read     = radio_read,
1562 	.release  = video_release,
1563 	.unlocked_ioctl	= video_ioctl2,
1564 	.poll     = radio_poll,
1565 };
1566 
1567 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
1568 	.vidioc_querycap	= saa7134_querycap,
1569 	.vidioc_g_tuner		= radio_g_tuner,
1570 	.vidioc_s_tuner		= radio_s_tuner,
1571 	.vidioc_g_frequency	= saa7134_g_frequency,
1572 	.vidioc_s_frequency	= saa7134_s_frequency,
1573 	.vidioc_subscribe_event	= v4l2_ctrl_subscribe_event,
1574 	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1575 };
1576 
1577 /* ----------------------------------------------------------- */
1578 /* exported stuff                                              */
1579 
1580 struct video_device saa7134_video_template = {
1581 	.name				= "saa7134-video",
1582 	.fops				= &video_fops,
1583 	.ioctl_ops			= &video_ioctl_ops,
1584 	.tvnorms			= SAA7134_NORMS,
1585 };
1586 
1587 struct video_device saa7134_radio_template = {
1588 	.name			= "saa7134-radio",
1589 	.fops			= &radio_fops,
1590 	.ioctl_ops		= &radio_ioctl_ops,
1591 };
1592 
1593 static const struct v4l2_ctrl_ops saa7134_ctrl_ops = {
1594 	.s_ctrl = saa7134_s_ctrl,
1595 };
1596 
1597 static const struct v4l2_ctrl_config saa7134_ctrl_invert = {
1598 	.ops = &saa7134_ctrl_ops,
1599 	.id = V4L2_CID_PRIVATE_INVERT,
1600 	.name = "Invert",
1601 	.type = V4L2_CTRL_TYPE_BOOLEAN,
1602 	.min = 0,
1603 	.max = 1,
1604 	.step = 1,
1605 };
1606 
1607 static const struct v4l2_ctrl_config saa7134_ctrl_y_odd = {
1608 	.ops = &saa7134_ctrl_ops,
1609 	.id = V4L2_CID_PRIVATE_Y_ODD,
1610 	.name = "Y Offset Odd Field",
1611 	.type = V4L2_CTRL_TYPE_INTEGER,
1612 	.min = 0,
1613 	.max = 128,
1614 	.step = 1,
1615 };
1616 
1617 static const struct v4l2_ctrl_config saa7134_ctrl_y_even = {
1618 	.ops = &saa7134_ctrl_ops,
1619 	.id = V4L2_CID_PRIVATE_Y_EVEN,
1620 	.name = "Y Offset Even Field",
1621 	.type = V4L2_CTRL_TYPE_INTEGER,
1622 	.min = 0,
1623 	.max = 128,
1624 	.step = 1,
1625 };
1626 
1627 static const struct v4l2_ctrl_config saa7134_ctrl_automute = {
1628 	.ops = &saa7134_ctrl_ops,
1629 	.id = V4L2_CID_PRIVATE_AUTOMUTE,
1630 	.name = "Automute",
1631 	.type = V4L2_CTRL_TYPE_BOOLEAN,
1632 	.min = 0,
1633 	.max = 1,
1634 	.step = 1,
1635 	.def = 1,
1636 };
1637 
saa7134_video_init1(struct saa7134_dev * dev)1638 int saa7134_video_init1(struct saa7134_dev *dev)
1639 {
1640 	struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler;
1641 	struct vb2_queue *q;
1642 	int ret;
1643 
1644 	/* sanitycheck insmod options */
1645 	if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
1646 		gbuffers = 2;
1647 	if (gbufsize > gbufsize_max)
1648 		gbufsize = gbufsize_max;
1649 	gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
1650 
1651 	v4l2_ctrl_handler_init(hdl, 11);
1652 	v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
1653 			V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
1654 	v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
1655 			V4L2_CID_CONTRAST, 0, 127, 1, 68);
1656 	v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
1657 			V4L2_CID_SATURATION, 0, 127, 1, 64);
1658 	v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
1659 			V4L2_CID_HUE, -128, 127, 1, 0);
1660 	v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
1661 			V4L2_CID_HFLIP, 0, 1, 1, 0);
1662 	v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
1663 			V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
1664 	v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
1665 			V4L2_CID_AUDIO_VOLUME, -15, 15, 1, 0);
1666 	v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_invert, NULL);
1667 	v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_y_odd, NULL);
1668 	v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_y_even, NULL);
1669 	v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_automute, NULL);
1670 	if (hdl->error)
1671 		return hdl->error;
1672 	if (card_has_radio(dev)) {
1673 		hdl = &dev->radio_ctrl_handler;
1674 		v4l2_ctrl_handler_init(hdl, 2);
1675 		v4l2_ctrl_add_handler(hdl, &dev->ctrl_handler,
1676 				v4l2_ctrl_radio_filter, false);
1677 		if (hdl->error)
1678 			return hdl->error;
1679 	}
1680 	dev->ctl_mute       = 1;
1681 
1682 	if (dev->tda9887_conf && saa7134_ctrl_automute.def)
1683 		dev->tda9887_conf |= TDA9887_AUTOMUTE;
1684 	dev->automute       = 0;
1685 
1686 	INIT_LIST_HEAD(&dev->video_q.queue);
1687 	timer_setup(&dev->video_q.timeout, saa7134_buffer_timeout, 0);
1688 	dev->video_q.dev              = dev;
1689 	dev->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
1690 	dev->width    = 720;
1691 	dev->height   = 576;
1692 	dev->field = V4L2_FIELD_INTERLACED;
1693 
1694 	if (saa7134_boards[dev->board].video_out)
1695 		saa7134_videoport_init(dev);
1696 
1697 	q = &dev->video_vbq;
1698 	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1699 	/*
1700 	 * Do not add VB2_USERPTR unless explicitly requested: the saa7134 DMA
1701 	 * engine cannot handle transfers that do not start at the beginning
1702 	 * of a page. A user-provided pointer can start anywhere in a page, so
1703 	 * USERPTR support is a no-go unless the application knows about these
1704 	 * limitations and has special support for this.
1705 	 */
1706 	q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
1707 	if (saa7134_userptr)
1708 		q->io_modes |= VB2_USERPTR;
1709 	q->drv_priv = &dev->video_q;
1710 	q->ops = &vb2_qops;
1711 	q->gfp_flags = GFP_DMA32;
1712 	q->mem_ops = &vb2_dma_sg_memops;
1713 	q->buf_struct_size = sizeof(struct saa7134_buf);
1714 	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1715 	q->lock = &dev->lock;
1716 	q->dev = &dev->pci->dev;
1717 	ret = vb2_queue_init(q);
1718 	if (ret)
1719 		return ret;
1720 	saa7134_pgtable_alloc(dev->pci, &dev->video_q.pt);
1721 
1722 	q = &dev->vbi_vbq;
1723 	q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1724 	/* Don't add VB2_USERPTR, see comment above */
1725 	q->io_modes = VB2_MMAP | VB2_READ;
1726 	if (saa7134_userptr)
1727 		q->io_modes |= VB2_USERPTR;
1728 	q->drv_priv = &dev->vbi_q;
1729 	q->ops = &saa7134_vbi_qops;
1730 	q->gfp_flags = GFP_DMA32;
1731 	q->mem_ops = &vb2_dma_sg_memops;
1732 	q->buf_struct_size = sizeof(struct saa7134_buf);
1733 	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1734 	q->lock = &dev->lock;
1735 	q->dev = &dev->pci->dev;
1736 	ret = vb2_queue_init(q);
1737 	if (ret)
1738 		return ret;
1739 	saa7134_pgtable_alloc(dev->pci, &dev->vbi_q.pt);
1740 
1741 	return 0;
1742 }
1743 
saa7134_video_fini(struct saa7134_dev * dev)1744 void saa7134_video_fini(struct saa7134_dev *dev)
1745 {
1746 	del_timer_sync(&dev->video_q.timeout);
1747 	/* free stuff */
1748 	saa7134_pgtable_free(dev->pci, &dev->video_q.pt);
1749 	saa7134_pgtable_free(dev->pci, &dev->vbi_q.pt);
1750 	v4l2_ctrl_handler_free(&dev->ctrl_handler);
1751 	if (card_has_radio(dev))
1752 		v4l2_ctrl_handler_free(&dev->radio_ctrl_handler);
1753 }
1754 
saa7134_videoport_init(struct saa7134_dev * dev)1755 int saa7134_videoport_init(struct saa7134_dev *dev)
1756 {
1757 	/* enable video output */
1758 	int vo = saa7134_boards[dev->board].video_out;
1759 	int video_reg;
1760 	unsigned int vid_port_opts = saa7134_boards[dev->board].vid_port_opts;
1761 
1762 	/* Configure videoport */
1763 	saa_writeb(SAA7134_VIDEO_PORT_CTRL0, video_out[vo][0]);
1764 	video_reg = video_out[vo][1];
1765 	if (vid_port_opts & SET_T_CODE_POLARITY_NON_INVERTED)
1766 		video_reg &= ~VP_T_CODE_P_INVERTED;
1767 	saa_writeb(SAA7134_VIDEO_PORT_CTRL1, video_reg);
1768 	saa_writeb(SAA7134_VIDEO_PORT_CTRL2, video_out[vo][2]);
1769 	saa_writeb(SAA7134_VIDEO_PORT_CTRL4, video_out[vo][4]);
1770 	video_reg = video_out[vo][5];
1771 	if (vid_port_opts & SET_CLOCK_NOT_DELAYED)
1772 		video_reg &= ~VP_CLK_CTRL2_DELAYED;
1773 	if (vid_port_opts & SET_CLOCK_INVERTED)
1774 		video_reg |= VP_CLK_CTRL1_INVERTED;
1775 	saa_writeb(SAA7134_VIDEO_PORT_CTRL5, video_reg);
1776 	video_reg = video_out[vo][6];
1777 	if (vid_port_opts & SET_VSYNC_OFF) {
1778 		video_reg &= ~VP_VS_TYPE_MASK;
1779 		video_reg |= VP_VS_TYPE_OFF;
1780 	}
1781 	saa_writeb(SAA7134_VIDEO_PORT_CTRL6, video_reg);
1782 	saa_writeb(SAA7134_VIDEO_PORT_CTRL7, video_out[vo][7]);
1783 	saa_writeb(SAA7134_VIDEO_PORT_CTRL8, video_out[vo][8]);
1784 
1785 	/* Start videoport */
1786 	saa_writeb(SAA7134_VIDEO_PORT_CTRL3, video_out[vo][3]);
1787 
1788 	return 0;
1789 }
1790 
saa7134_video_init2(struct saa7134_dev * dev)1791 int saa7134_video_init2(struct saa7134_dev *dev)
1792 {
1793 	/* init video hw */
1794 	set_tvnorm(dev,&tvnorms[0]);
1795 	video_mux(dev,0);
1796 	v4l2_ctrl_handler_setup(&dev->ctrl_handler);
1797 	saa7134_tvaudio_setmute(dev);
1798 	saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
1799 	return 0;
1800 }
1801 
saa7134_irq_video_signalchange(struct saa7134_dev * dev)1802 void saa7134_irq_video_signalchange(struct saa7134_dev *dev)
1803 {
1804 	static const char *st[] = {
1805 		"(no signal)", "NTSC", "PAL", "SECAM" };
1806 	u32 st1,st2;
1807 
1808 	st1 = saa_readb(SAA7134_STATUS_VIDEO1);
1809 	st2 = saa_readb(SAA7134_STATUS_VIDEO2);
1810 	video_dbg("DCSDT: pll: %s, sync: %s, norm: %s\n",
1811 		(st1 & 0x40) ? "not locked" : "locked",
1812 		(st2 & 0x40) ? "no"         : "yes",
1813 		st[st1 & 0x03]);
1814 	dev->nosignal = (st1 & 0x40) || (st2 & 0x40)  || !(st2 & 0x1);
1815 
1816 	if (dev->nosignal) {
1817 		/* no video signal -> mute audio */
1818 		if (dev->ctl_automute)
1819 			dev->automute = 1;
1820 		saa7134_tvaudio_setmute(dev);
1821 	} else {
1822 		/* wake up tvaudio audio carrier scan thread */
1823 		saa7134_tvaudio_do_scan(dev);
1824 	}
1825 
1826 	if ((st2 & 0x80) && !noninterlaced && !dev->nosignal)
1827 		saa_clearb(SAA7134_SYNC_CTRL, 0x20);
1828 	else
1829 		saa_setb(SAA7134_SYNC_CTRL, 0x20);
1830 
1831 	if (dev->mops && dev->mops->signal_change)
1832 		dev->mops->signal_change(dev);
1833 }
1834 
1835 
saa7134_irq_video_done(struct saa7134_dev * dev,unsigned long status)1836 void saa7134_irq_video_done(struct saa7134_dev *dev, unsigned long status)
1837 {
1838 	enum v4l2_field field;
1839 
1840 	spin_lock(&dev->slock);
1841 	if (dev->video_q.curr) {
1842 		field = dev->field;
1843 		if (V4L2_FIELD_HAS_BOTH(field)) {
1844 			/* make sure we have seen both fields */
1845 			if ((status & 0x10) == 0x00) {
1846 				dev->video_q.curr->top_seen = 1;
1847 				goto done;
1848 			}
1849 			if (!dev->video_q.curr->top_seen)
1850 				goto done;
1851 		} else if (field == V4L2_FIELD_TOP) {
1852 			if ((status & 0x10) != 0x10)
1853 				goto done;
1854 		} else if (field == V4L2_FIELD_BOTTOM) {
1855 			if ((status & 0x10) != 0x00)
1856 				goto done;
1857 		}
1858 		saa7134_buffer_finish(dev, &dev->video_q, VB2_BUF_STATE_DONE);
1859 	}
1860 	saa7134_buffer_next(dev, &dev->video_q);
1861 
1862  done:
1863 	spin_unlock(&dev->slock);
1864 }
1865