Merge with rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
[linux-2.6] / drivers / media / video / saa7134 / saa7134-video.c
1 /*
2  * $Id: saa7134-video.c,v 1.30 2005/06/07 19:00:38 nsh Exp $
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  *  This program is free software; you can redistribute it and/or modify
10  *  it under the terms of the GNU General Public License as published by
11  *  the Free Software Foundation; either version 2 of the License, or
12  *  (at your option) any later version.
13  *
14  *  This program is distributed in the hope that it will be useful,
15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  *  GNU General Public License for more details.
18  *
19  *  You should have received a copy of the GNU General Public License
20  *  along with this program; if not, write to the Free Software
21  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22  */
23
24 #include <linux/init.h>
25 #include <linux/list.h>
26 #include <linux/module.h>
27 #include <linux/moduleparam.h>
28 #include <linux/kernel.h>
29 #include <linux/slab.h>
30
31 #include "saa7134-reg.h"
32 #include "saa7134.h"
33
34 /* ------------------------------------------------------------------ */
35
36 static unsigned int video_debug   = 0;
37 static unsigned int gbuffers      = 8;
38 static unsigned int noninterlaced = 0;
39 static unsigned int gbufsize      = 720*576*4;
40 static unsigned int gbufsize_max  = 720*576*4;
41 module_param(video_debug, int, 0644);
42 MODULE_PARM_DESC(video_debug,"enable debug messages [video]");
43 module_param(gbuffers, int, 0444);
44 MODULE_PARM_DESC(gbuffers,"number of capture buffers, range 2-32");
45 module_param(noninterlaced, int, 0644);
46 MODULE_PARM_DESC(noninterlaced,"video input is noninterlaced");
47
48 #define dprintk(fmt, arg...)    if (video_debug) \
49         printk(KERN_DEBUG "%s/video: " fmt, dev->name , ## arg)
50
51 /* ------------------------------------------------------------------ */
52 /* data structs for video                                             */
53
54 static int video_out[][9] = {
55         [CCIR656] = { 0x00, 0xb1, 0x00, 0xa1, 0x00, 0x04, 0x06, 0x00, 0x00 },
56 };
57
58 static struct saa7134_format formats[] = {
59         {
60                 .name     = "8 bpp gray",
61                 .fourcc   = V4L2_PIX_FMT_GREY,
62                 .depth    = 8,
63                 .pm       = 0x06,
64         },{
65                 .name     = "15 bpp RGB, le",
66                 .fourcc   = V4L2_PIX_FMT_RGB555,
67                 .depth    = 16,
68                 .pm       = 0x13 | 0x80,
69         },{
70                 .name     = "15 bpp RGB, be",
71                 .fourcc   = V4L2_PIX_FMT_RGB555X,
72                 .depth    = 16,
73                 .pm       = 0x13 | 0x80,
74                 .bswap    = 1,
75         },{
76                 .name     = "16 bpp RGB, le",
77                 .fourcc   = V4L2_PIX_FMT_RGB565,
78                 .depth    = 16,
79                 .pm       = 0x10 | 0x80,
80         },{
81                 .name     = "16 bpp RGB, be",
82                 .fourcc   = V4L2_PIX_FMT_RGB565X,
83                 .depth    = 16,
84                 .pm       = 0x10 | 0x80,
85                 .bswap    = 1,
86         },{
87                 .name     = "24 bpp RGB, le",
88                 .fourcc   = V4L2_PIX_FMT_BGR24,
89                 .depth    = 24,
90                 .pm       = 0x11,
91         },{
92                 .name     = "24 bpp RGB, be",
93                 .fourcc   = V4L2_PIX_FMT_RGB24,
94                 .depth    = 24,
95                 .pm       = 0x11,
96                 .bswap    = 1,
97         },{
98                 .name     = "32 bpp RGB, le",
99                 .fourcc   = V4L2_PIX_FMT_BGR32,
100                 .depth    = 32,
101                 .pm       = 0x12,
102         },{
103                 .name     = "32 bpp RGB, be",
104                 .fourcc   = V4L2_PIX_FMT_RGB32,
105                 .depth    = 32,
106                 .pm       = 0x12,
107                 .bswap    = 1,
108                 .wswap    = 1,
109         },{
110                 .name     = "4:2:2 packed, YUYV",
111                 .fourcc   = V4L2_PIX_FMT_YUYV,
112                 .depth    = 16,
113                 .pm       = 0x00,
114                 .bswap    = 1,
115                 .yuv      = 1,
116         },{
117                 .name     = "4:2:2 packed, UYVY",
118                 .fourcc   = V4L2_PIX_FMT_UYVY,
119                 .depth    = 16,
120                 .pm       = 0x00,
121                 .yuv      = 1,
122         },{
123                 .name     = "4:2:2 planar, Y-Cb-Cr",
124                 .fourcc   = V4L2_PIX_FMT_YUV422P,
125                 .depth    = 16,
126                 .pm       = 0x09,
127                 .yuv      = 1,
128                 .planar   = 1,
129                 .hshift   = 1,
130                 .vshift   = 0,
131         },{
132                 .name     = "4:2:0 planar, Y-Cb-Cr",
133                 .fourcc   = V4L2_PIX_FMT_YUV420,
134                 .depth    = 12,
135                 .pm       = 0x0a,
136                 .yuv      = 1,
137                 .planar   = 1,
138                 .hshift   = 1,
139                 .vshift   = 1,
140         },{
141                 .name     = "4:2:0 planar, Y-Cb-Cr",
142                 .fourcc   = V4L2_PIX_FMT_YVU420,
143                 .depth    = 12,
144                 .pm       = 0x0a,
145                 .yuv      = 1,
146                 .planar   = 1,
147                 .uvswap   = 1,
148                 .hshift   = 1,
149                 .vshift   = 1,
150         }
151 };
152 #define FORMATS ARRAY_SIZE(formats)
153
154 #define NORM_625_50                     \
155                 .h_start       = 0,     \
156                 .h_stop        = 719,   \
157                 .video_v_start = 24,    \
158                 .video_v_stop  = 311,   \
159                 .vbi_v_start_0 = 7,     \
160                 .vbi_v_stop_0  = 22,    \
161                 .vbi_v_start_1 = 319,   \
162                 .src_timing    = 4
163
164 #define NORM_525_60                     \
165                 .h_start       = 0,     \
166                 .h_stop        = 703,   \
167                 .video_v_start = 23,    \
168                 .video_v_stop  = 262,   \
169                 .vbi_v_start_0 = 10,    \
170                 .vbi_v_stop_0  = 21,    \
171                 .vbi_v_start_1 = 273,   \
172                 .src_timing    = 7
173
174 static struct saa7134_tvnorm tvnorms[] = {
175         {
176                 .name          = "PAL", /* autodetect */
177                 .id            = V4L2_STD_PAL,
178                 NORM_625_50,
179
180                 .sync_control  = 0x18,
181                 .luma_control  = 0x40,
182                 .chroma_ctrl1  = 0x81,
183                 .chroma_gain   = 0x2a,
184                 .chroma_ctrl2  = 0x06,
185                 .vgate_misc    = 0x1c,
186
187         },{
188                 .name          = "PAL-BG",
189                 .id            = V4L2_STD_PAL_BG,
190                 NORM_625_50,
191
192                 .sync_control  = 0x18,
193                 .luma_control  = 0x40,
194                 .chroma_ctrl1  = 0x81,
195                 .chroma_gain   = 0x2a,
196                 .chroma_ctrl2  = 0x06,
197                 .vgate_misc    = 0x1c,
198
199         },{
200                 .name          = "PAL-I",
201                 .id            = V4L2_STD_PAL_I,
202                 NORM_625_50,
203
204                 .sync_control  = 0x18,
205                 .luma_control  = 0x40,
206                 .chroma_ctrl1  = 0x81,
207                 .chroma_gain   = 0x2a,
208                 .chroma_ctrl2  = 0x06,
209                 .vgate_misc    = 0x1c,
210
211         },{
212                 .name          = "PAL-DK",
213                 .id            = V4L2_STD_PAL_DK,
214                 NORM_625_50,
215
216                 .sync_control  = 0x18,
217                 .luma_control  = 0x40,
218                 .chroma_ctrl1  = 0x81,
219                 .chroma_gain   = 0x2a,
220                 .chroma_ctrl2  = 0x06,
221                 .vgate_misc    = 0x1c,
222
223         },{
224                 .name          = "NTSC",
225                 .id            = V4L2_STD_NTSC,
226                 NORM_525_60,
227
228                 .sync_control  = 0x59,
229                 .luma_control  = 0x40,
230                 .chroma_ctrl1  = 0x89,
231                 .chroma_gain   = 0x2a,
232                 .chroma_ctrl2  = 0x0e,
233                 .vgate_misc    = 0x18,
234
235         },{
236                 .name          = "SECAM",
237                 .id            = V4L2_STD_SECAM,
238                 NORM_625_50,
239
240                 .sync_control  = 0x18, /* old: 0x58, */
241                 .luma_control  = 0x1b,
242                 .chroma_ctrl1  = 0xd1,
243                 .chroma_gain   = 0x80,
244                 .chroma_ctrl2  = 0x00,
245                 .vgate_misc    = 0x1c,
246
247         },{
248                 .name          = "PAL-M",
249                 .id            = V4L2_STD_PAL_M,
250                 NORM_525_60,
251
252                 .sync_control  = 0x59,
253                 .luma_control  = 0x40,
254                 .chroma_ctrl1  = 0xb9,
255                 .chroma_gain   = 0x2a,
256                 .chroma_ctrl2  = 0x0e,
257                 .vgate_misc    = 0x18,
258
259         },{
260                 .name          = "PAL-Nc",
261                 .id            = V4L2_STD_PAL_Nc,
262                 NORM_625_50,
263
264                 .sync_control  = 0x18,
265                 .luma_control  = 0x40,
266                 .chroma_ctrl1  = 0xa1,
267                 .chroma_gain   = 0x2a,
268                 .chroma_ctrl2  = 0x06,
269                 .vgate_misc    = 0x1c,
270
271         },{
272                 .name          = "PAL-60",
273                 .id            = V4L2_STD_PAL_60,
274
275                 .h_start       = 0,
276                 .h_stop        = 719,
277                 .video_v_start = 23,
278                 .video_v_stop  = 262,
279                 .vbi_v_start_0 = 10,
280                 .vbi_v_stop_0  = 21,
281                 .vbi_v_start_1 = 273,
282                 .src_timing    = 7,
283
284                 .sync_control  = 0x18,
285                 .luma_control  = 0x40,
286                 .chroma_ctrl1  = 0x81,
287                 .chroma_gain   = 0x2a,
288                 .chroma_ctrl2  = 0x06,
289                 .vgate_misc    = 0x1c,
290         }
291 };
292 #define TVNORMS ARRAY_SIZE(tvnorms)
293
294 #define V4L2_CID_PRIVATE_INVERT      (V4L2_CID_PRIVATE_BASE + 0)
295 #define V4L2_CID_PRIVATE_Y_ODD       (V4L2_CID_PRIVATE_BASE + 1)
296 #define V4L2_CID_PRIVATE_Y_EVEN      (V4L2_CID_PRIVATE_BASE + 2)
297 #define V4L2_CID_PRIVATE_AUTOMUTE    (V4L2_CID_PRIVATE_BASE + 3)
298 #define V4L2_CID_PRIVATE_LASTP1      (V4L2_CID_PRIVATE_BASE + 4)
299
300 static const struct v4l2_queryctrl no_ctrl = {
301         .name  = "42",
302         .flags = V4L2_CTRL_FLAG_DISABLED,
303 };
304 static const struct v4l2_queryctrl video_ctrls[] = {
305         /* --- video --- */
306         {
307                 .id            = V4L2_CID_BRIGHTNESS,
308                 .name          = "Brightness",
309                 .minimum       = 0,
310                 .maximum       = 255,
311                 .step          = 1,
312                 .default_value = 128,
313                 .type          = V4L2_CTRL_TYPE_INTEGER,
314         },{
315                 .id            = V4L2_CID_CONTRAST,
316                 .name          = "Contrast",
317                 .minimum       = 0,
318                 .maximum       = 127,
319                 .step          = 1,
320                 .default_value = 68,
321                 .type          = V4L2_CTRL_TYPE_INTEGER,
322         },{
323                 .id            = V4L2_CID_SATURATION,
324                 .name          = "Saturation",
325                 .minimum       = 0,
326                 .maximum       = 127,
327                 .step          = 1,
328                 .default_value = 64,
329                 .type          = V4L2_CTRL_TYPE_INTEGER,
330         },{
331                 .id            = V4L2_CID_HUE,
332                 .name          = "Hue",
333                 .minimum       = -128,
334                 .maximum       = 127,
335                 .step          = 1,
336                 .default_value = 0,
337                 .type          = V4L2_CTRL_TYPE_INTEGER,
338         },{
339                 .id            = V4L2_CID_HFLIP,
340                 .name          = "Mirror",
341                 .minimum       = 0,
342                 .maximum       = 1,
343                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
344         },
345         /* --- audio --- */
346         {
347                 .id            = V4L2_CID_AUDIO_MUTE,
348                 .name          = "Mute",
349                 .minimum       = 0,
350                 .maximum       = 1,
351                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
352         },{
353                 .id            = V4L2_CID_AUDIO_VOLUME,
354                 .name          = "Volume",
355                 .minimum       = -15,
356                 .maximum       = 15,
357                 .step          = 1,
358                 .default_value = 0,
359                 .type          = V4L2_CTRL_TYPE_INTEGER,
360         },
361         /* --- private --- */
362         {
363                 .id            = V4L2_CID_PRIVATE_INVERT,
364                 .name          = "Invert",
365                 .minimum       = 0,
366                 .maximum       = 1,
367                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
368         },{
369                 .id            = V4L2_CID_PRIVATE_Y_ODD,
370                 .name          = "y offset odd field",
371                 .minimum       = 0,
372                 .maximum       = 128,
373                 .default_value = 0,
374                 .type          = V4L2_CTRL_TYPE_INTEGER,
375         },{
376                 .id            = V4L2_CID_PRIVATE_Y_EVEN,
377                 .name          = "y offset even field",
378                 .minimum       = 0,
379                 .maximum       = 128,
380                 .default_value = 0,
381                 .type          = V4L2_CTRL_TYPE_INTEGER,
382         },{
383                 .id            = V4L2_CID_PRIVATE_AUTOMUTE,
384                 .name          = "automute",
385                 .minimum       = 0,
386                 .maximum       = 1,
387                 .default_value = 1,
388                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
389         }
390 };
391 static const unsigned int CTRLS = ARRAY_SIZE(video_ctrls);
392
393 static const struct v4l2_queryctrl* ctrl_by_id(unsigned int id)
394 {
395         unsigned int i;
396
397         for (i = 0; i < CTRLS; i++)
398                 if (video_ctrls[i].id == id)
399                         return video_ctrls+i;
400         return NULL;
401 }
402
403 static struct saa7134_format* format_by_fourcc(unsigned int fourcc)
404 {
405         unsigned int i;
406
407         for (i = 0; i < FORMATS; i++)
408                 if (formats[i].fourcc == fourcc)
409                         return formats+i;
410         return NULL;
411 }
412
413 /* ----------------------------------------------------------------------- */
414 /* resource management                                                     */
415
416 static int res_get(struct saa7134_dev *dev, struct saa7134_fh *fh, unsigned int bit)
417 {
418         if (fh->resources & bit)
419                 /* have it already allocated */
420                 return 1;
421
422         /* is it free? */
423         down(&dev->lock);
424         if (dev->resources & bit) {
425                 /* no, someone else uses it */
426                 up(&dev->lock);
427                 return 0;
428         }
429         /* it's free, grab it */
430         fh->resources  |= bit;
431         dev->resources |= bit;
432         dprintk("res: get %d\n",bit);
433         up(&dev->lock);
434         return 1;
435 }
436
437 static
438 int res_check(struct saa7134_fh *fh, unsigned int bit)
439 {
440         return (fh->resources & bit);
441 }
442
443 static
444 int res_locked(struct saa7134_dev *dev, unsigned int bit)
445 {
446         return (dev->resources & bit);
447 }
448
449 static
450 void res_free(struct saa7134_dev *dev, struct saa7134_fh *fh, unsigned int bits)
451 {
452         if ((fh->resources & bits) != bits)
453                 BUG();
454
455         down(&dev->lock);
456         fh->resources  &= ~bits;
457         dev->resources &= ~bits;
458         dprintk("res: put %d\n",bits);
459         up(&dev->lock);
460 }
461
462 /* ------------------------------------------------------------------ */
463
464 static void set_tvnorm(struct saa7134_dev *dev, struct saa7134_tvnorm *norm)
465 {
466         int luma_control,sync_control,mux;
467
468         dprintk("set tv norm = %s\n",norm->name);
469         dev->tvnorm = norm;
470
471         mux = card_in(dev,dev->ctl_input).vmux;
472         luma_control = norm->luma_control;
473         sync_control = norm->sync_control;
474
475         if (mux > 5)
476                 luma_control |= 0x80; /* svideo */
477         if (noninterlaced || dev->nosignal)
478                 sync_control |= 0x20;
479
480         /* setup cropping */
481         dev->crop_bounds.left    = norm->h_start;
482         dev->crop_defrect.left   = norm->h_start;
483         dev->crop_bounds.width   = norm->h_stop - norm->h_start +1;
484         dev->crop_defrect.width  = norm->h_stop - norm->h_start +1;
485
486         dev->crop_bounds.top     = (norm->vbi_v_stop_0+1)*2;
487         dev->crop_defrect.top    = norm->video_v_start*2;
488         dev->crop_bounds.height  = ((norm->id & V4L2_STD_525_60) ? 524 : 624)
489                 - dev->crop_bounds.top;
490         dev->crop_defrect.height = (norm->video_v_stop - norm->video_v_start +1)*2;
491
492         dev->crop_current = dev->crop_defrect;
493
494         /* setup video decoder */
495         saa_writeb(SAA7134_INCR_DELAY,            0x08);
496         saa_writeb(SAA7134_ANALOG_IN_CTRL1,       0xc0 | mux);
497         saa_writeb(SAA7134_ANALOG_IN_CTRL2,       0x00);
498
499         saa_writeb(SAA7134_ANALOG_IN_CTRL3,       0x90);
500         saa_writeb(SAA7134_ANALOG_IN_CTRL4,       0x90);
501         saa_writeb(SAA7134_HSYNC_START,           0xeb);
502         saa_writeb(SAA7134_HSYNC_STOP,            0xe0);
503         saa_writeb(SAA7134_SOURCE_TIMING1,        norm->src_timing);
504
505         saa_writeb(SAA7134_SYNC_CTRL,             sync_control);
506         saa_writeb(SAA7134_LUMA_CTRL,             luma_control);
507         saa_writeb(SAA7134_DEC_LUMA_BRIGHT,       dev->ctl_bright);
508         saa_writeb(SAA7134_DEC_LUMA_CONTRAST,     dev->ctl_contrast);
509
510         saa_writeb(SAA7134_DEC_CHROMA_SATURATION, dev->ctl_saturation);
511         saa_writeb(SAA7134_DEC_CHROMA_HUE,        dev->ctl_hue);
512         saa_writeb(SAA7134_CHROMA_CTRL1,          norm->chroma_ctrl1);
513         saa_writeb(SAA7134_CHROMA_GAIN,           norm->chroma_gain);
514
515         saa_writeb(SAA7134_CHROMA_CTRL2,          norm->chroma_ctrl2);
516         saa_writeb(SAA7134_MODE_DELAY_CTRL,       0x00);
517
518         saa_writeb(SAA7134_ANALOG_ADC,            0x01);
519         saa_writeb(SAA7134_VGATE_START,           0x11);
520         saa_writeb(SAA7134_VGATE_STOP,            0xfe);
521         saa_writeb(SAA7134_MISC_VGATE_MSB,        norm->vgate_misc);
522         saa_writeb(SAA7134_RAW_DATA_GAIN,         0x40);
523         saa_writeb(SAA7134_RAW_DATA_OFFSET,       0x80);
524
525         saa7134_i2c_call_clients(dev,VIDIOC_S_STD,&norm->id);
526 }
527
528 static void video_mux(struct saa7134_dev *dev, int input)
529 {
530         dprintk("video input = %d [%s]\n",input,card_in(dev,input).name);
531         dev->ctl_input = input;
532         set_tvnorm(dev,dev->tvnorm);
533         saa7134_tvaudio_setinput(dev,&card_in(dev,input));
534 }
535
536 static void set_h_prescale(struct saa7134_dev *dev, int task, int prescale)
537 {
538         static const struct {
539                 int xpsc;
540                 int xacl;
541                 int xc2_1;
542                 int xdcg;
543                 int vpfy;
544         } vals[] = {
545                 /* XPSC XACL XC2_1 XDCG VPFY */
546                 {    1,   0,    0,    0,   0 },
547                 {    2,   2,    1,    2,   2 },
548                 {    3,   4,    1,    3,   2 },
549                 {    4,   8,    1,    4,   2 },
550                 {    5,   8,    1,    4,   2 },
551                 {    6,   8,    1,    4,   3 },
552                 {    7,   8,    1,    4,   3 },
553                 {    8,  15,    0,    4,   3 },
554                 {    9,  15,    0,    4,   3 },
555                 {   10,  16,    1,    5,   3 },
556         };
557         static const int count = ARRAY_SIZE(vals);
558         int i;
559
560         for (i = 0; i < count; i++)
561                 if (vals[i].xpsc == prescale)
562                         break;
563         if (i == count)
564                 return;
565
566         saa_writeb(SAA7134_H_PRESCALE(task), vals[i].xpsc);
567         saa_writeb(SAA7134_ACC_LENGTH(task), vals[i].xacl);
568         saa_writeb(SAA7134_LEVEL_CTRL(task),
569                    (vals[i].xc2_1 << 3) | (vals[i].xdcg));
570         saa_andorb(SAA7134_FIR_PREFILTER_CTRL(task), 0x0f,
571                    (vals[i].vpfy << 2) | vals[i].vpfy);
572 }
573
574 static void set_v_scale(struct saa7134_dev *dev, int task, int yscale)
575 {
576         int val,mirror;
577
578         saa_writeb(SAA7134_V_SCALE_RATIO1(task), yscale &  0xff);
579         saa_writeb(SAA7134_V_SCALE_RATIO2(task), yscale >> 8);
580
581         mirror = (dev->ctl_mirror) ? 0x02 : 0x00;
582         if (yscale < 2048) {
583                 /* LPI */
584                 dprintk("yscale LPI yscale=%d\n",yscale);
585                 saa_writeb(SAA7134_V_FILTER(task), 0x00 | mirror);
586                 saa_writeb(SAA7134_LUMA_CONTRAST(task), 0x40);
587                 saa_writeb(SAA7134_CHROMA_SATURATION(task), 0x40);
588         } else {
589                 /* ACM */
590                 val = 0x40 * 1024 / yscale;
591                 dprintk("yscale ACM yscale=%d val=0x%x\n",yscale,val);
592                 saa_writeb(SAA7134_V_FILTER(task), 0x01 | mirror);
593                 saa_writeb(SAA7134_LUMA_CONTRAST(task), val);
594                 saa_writeb(SAA7134_CHROMA_SATURATION(task), val);
595         }
596         saa_writeb(SAA7134_LUMA_BRIGHT(task),       0x80);
597 }
598
599 static void set_size(struct saa7134_dev *dev, int task,
600                      int width, int height, int interlace)
601 {
602         int prescale,xscale,yscale,y_even,y_odd;
603         int h_start, h_stop, v_start, v_stop;
604         int div = interlace ? 2 : 1;
605
606         /* setup video scaler */
607         h_start = dev->crop_current.left;
608         v_start = dev->crop_current.top/2;
609         h_stop  = (dev->crop_current.left + dev->crop_current.width -1);
610         v_stop  = (dev->crop_current.top + dev->crop_current.height -1)/2;
611
612         saa_writeb(SAA7134_VIDEO_H_START1(task), h_start &  0xff);
613         saa_writeb(SAA7134_VIDEO_H_START2(task), h_start >> 8);
614         saa_writeb(SAA7134_VIDEO_H_STOP1(task),  h_stop  &  0xff);
615         saa_writeb(SAA7134_VIDEO_H_STOP2(task),  h_stop  >> 8);
616         saa_writeb(SAA7134_VIDEO_V_START1(task), v_start &  0xff);
617         saa_writeb(SAA7134_VIDEO_V_START2(task), v_start >> 8);
618         saa_writeb(SAA7134_VIDEO_V_STOP1(task),  v_stop  &  0xff);
619         saa_writeb(SAA7134_VIDEO_V_STOP2(task),  v_stop  >> 8);
620
621         prescale = dev->crop_current.width / width;
622         if (0 == prescale)
623                 prescale = 1;
624         xscale = 1024 * dev->crop_current.width / prescale / width;
625         yscale = 512 * div * dev->crop_current.height / height;
626         dprintk("prescale=%d xscale=%d yscale=%d\n",prescale,xscale,yscale);
627         set_h_prescale(dev,task,prescale);
628         saa_writeb(SAA7134_H_SCALE_INC1(task),      xscale &  0xff);
629         saa_writeb(SAA7134_H_SCALE_INC2(task),      xscale >> 8);
630         set_v_scale(dev,task,yscale);
631
632         saa_writeb(SAA7134_VIDEO_PIXELS1(task),     width  & 0xff);
633         saa_writeb(SAA7134_VIDEO_PIXELS2(task),     width  >> 8);
634         saa_writeb(SAA7134_VIDEO_LINES1(task),      height/div & 0xff);
635         saa_writeb(SAA7134_VIDEO_LINES2(task),      height/div >> 8);
636
637         /* deinterlace y offsets */
638         y_odd  = dev->ctl_y_odd;
639         y_even = dev->ctl_y_even;
640         saa_writeb(SAA7134_V_PHASE_OFFSET0(task), y_odd);
641         saa_writeb(SAA7134_V_PHASE_OFFSET1(task), y_even);
642         saa_writeb(SAA7134_V_PHASE_OFFSET2(task), y_odd);
643         saa_writeb(SAA7134_V_PHASE_OFFSET3(task), y_even);
644 }
645
646 /* ------------------------------------------------------------------ */
647
648 struct cliplist {
649         __u16 position;
650         __u8  enable;
651         __u8  disable;
652 };
653
654 static void sort_cliplist(struct cliplist *cl, int entries)
655 {
656         struct cliplist swap;
657         int i,j,n;
658
659         for (i = entries-2; i >= 0; i--) {
660                 for (n = 0, j = 0; j <= i; j++) {
661                         if (cl[j].position > cl[j+1].position) {
662                                 swap = cl[j];
663                                 cl[j] = cl[j+1];
664                                 cl[j+1] = swap;
665                                 n++;
666                         }
667                 }
668                 if (0 == n)
669                         break;
670         }
671 }
672
673 static void set_cliplist(struct saa7134_dev *dev, int reg,
674                         struct cliplist *cl, int entries, char *name)
675 {
676         __u8 winbits = 0;
677         int i;
678
679         for (i = 0; i < entries; i++) {
680                 winbits |= cl[i].enable;
681                 winbits &= ~cl[i].disable;
682                 if (i < 15 && cl[i].position == cl[i+1].position)
683                         continue;
684                 saa_writeb(reg + 0, winbits);
685                 saa_writeb(reg + 2, cl[i].position & 0xff);
686                 saa_writeb(reg + 3, cl[i].position >> 8);
687                 dprintk("clip: %s winbits=%02x pos=%d\n",
688                         name,winbits,cl[i].position);
689                 reg += 8;
690         }
691         for (; reg < 0x400; reg += 8) {
692                 saa_writeb(reg+ 0, 0);
693                 saa_writeb(reg + 1, 0);
694                 saa_writeb(reg + 2, 0);
695                 saa_writeb(reg + 3, 0);
696         }
697 }
698
699 static int clip_range(int val)
700 {
701         if (val < 0)
702                 val = 0;
703         return val;
704 }
705
706 static int setup_clipping(struct saa7134_dev *dev, struct v4l2_clip *clips,
707                           int nclips, int interlace)
708 {
709         struct cliplist col[16], row[16];
710         int cols, rows, i;
711         int div = interlace ? 2 : 1;
712
713         memset(col,0,sizeof(col)); cols = 0;
714         memset(row,0,sizeof(row)); rows = 0;
715         for (i = 0; i < nclips && i < 8; i++) {
716                 col[cols].position = clip_range(clips[i].c.left);
717                 col[cols].enable   = (1 << i);
718                 cols++;
719                 col[cols].position = clip_range(clips[i].c.left+clips[i].c.width);
720                 col[cols].disable  = (1 << i);
721                 cols++;
722                 row[rows].position = clip_range(clips[i].c.top / div);
723                 row[rows].enable   = (1 << i);
724                 rows++;
725                 row[rows].position = clip_range((clips[i].c.top + clips[i].c.height)
726                                                 / div);
727                 row[rows].disable  = (1 << i);
728                 rows++;
729         }
730         sort_cliplist(col,cols);
731         sort_cliplist(row,rows);
732         set_cliplist(dev,0x380,col,cols,"cols");
733         set_cliplist(dev,0x384,row,rows,"rows");
734         return 0;
735 }
736
737 static int verify_preview(struct saa7134_dev *dev, struct v4l2_window *win)
738 {
739         enum v4l2_field field;
740         int maxw, maxh;
741
742         if (NULL == dev->ovbuf.base)
743                 return -EINVAL;
744         if (NULL == dev->ovfmt)
745                 return -EINVAL;
746         if (win->w.width < 48 || win->w.height <  32)
747                 return -EINVAL;
748         if (win->clipcount > 2048)
749                 return -EINVAL;
750
751         field = win->field;
752         maxw  = dev->crop_current.width;
753         maxh  = dev->crop_current.height;
754
755         if (V4L2_FIELD_ANY == field) {
756                 field = (win->w.height > maxh/2)
757                         ? V4L2_FIELD_INTERLACED
758                         : V4L2_FIELD_TOP;
759         }
760         switch (field) {
761         case V4L2_FIELD_TOP:
762         case V4L2_FIELD_BOTTOM:
763                 maxh = maxh / 2;
764                 break;
765         case V4L2_FIELD_INTERLACED:
766                 break;
767         default:
768                 return -EINVAL;
769         }
770
771         win->field = field;
772         if (win->w.width > maxw)
773                 win->w.width = maxw;
774         if (win->w.height > maxh)
775                 win->w.height = maxh;
776         return 0;
777 }
778
779 static int start_preview(struct saa7134_dev *dev, struct saa7134_fh *fh)
780 {
781         unsigned long base,control,bpl;
782         int err;
783
784         err = verify_preview(dev,&fh->win);
785         if (0 != err)
786                 return err;
787
788         dev->ovfield = fh->win.field;
789         dprintk("start_preview %dx%d+%d+%d %s field=%s\n",
790                 fh->win.w.width,fh->win.w.height,
791                 fh->win.w.left,fh->win.w.top,
792                 dev->ovfmt->name,v4l2_field_names[dev->ovfield]);
793
794         /* setup window + clipping */
795         set_size(dev,TASK_B,fh->win.w.width,fh->win.w.height,
796                  V4L2_FIELD_HAS_BOTH(dev->ovfield));
797         setup_clipping(dev,fh->clips,fh->nclips,
798                        V4L2_FIELD_HAS_BOTH(dev->ovfield));
799         if (dev->ovfmt->yuv)
800                 saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x03);
801         else
802                 saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x01);
803         saa_writeb(SAA7134_OFMT_VIDEO_B, dev->ovfmt->pm | 0x20);
804
805         /* dma: setup channel 1 (= Video Task B) */
806         base  = (unsigned long)dev->ovbuf.base;
807         base += dev->ovbuf.fmt.bytesperline * fh->win.w.top;
808         base += dev->ovfmt->depth/8         * fh->win.w.left;
809         bpl   = dev->ovbuf.fmt.bytesperline;
810         control = SAA7134_RS_CONTROL_BURST_16;
811         if (dev->ovfmt->bswap)
812                 control |= SAA7134_RS_CONTROL_BSWAP;
813         if (dev->ovfmt->wswap)
814                 control |= SAA7134_RS_CONTROL_WSWAP;
815         if (V4L2_FIELD_HAS_BOTH(dev->ovfield)) {
816                 saa_writel(SAA7134_RS_BA1(1),base);
817                 saa_writel(SAA7134_RS_BA2(1),base+bpl);
818                 saa_writel(SAA7134_RS_PITCH(1),bpl*2);
819                 saa_writel(SAA7134_RS_CONTROL(1),control);
820         } else {
821                 saa_writel(SAA7134_RS_BA1(1),base);
822                 saa_writel(SAA7134_RS_BA2(1),base);
823                 saa_writel(SAA7134_RS_PITCH(1),bpl);
824                 saa_writel(SAA7134_RS_CONTROL(1),control);
825         }
826
827         /* start dma */
828         dev->ovenable = 1;
829         saa7134_set_dmabits(dev);
830
831         return 0;
832 }
833
834 static int stop_preview(struct saa7134_dev *dev, struct saa7134_fh *fh)
835 {
836         dev->ovenable = 0;
837         saa7134_set_dmabits(dev);
838         return 0;
839 }
840
841 /* ------------------------------------------------------------------ */
842
843 static int buffer_activate(struct saa7134_dev *dev,
844                            struct saa7134_buf *buf,
845                            struct saa7134_buf *next)
846 {
847         unsigned long base,control,bpl;
848         unsigned long bpl_uv,lines_uv,base2,base3,tmp; /* planar */
849
850         dprintk("buffer_activate buf=%p\n",buf);
851         buf->vb.state = STATE_ACTIVE;
852         buf->top_seen = 0;
853
854         set_size(dev,TASK_A,buf->vb.width,buf->vb.height,
855                  V4L2_FIELD_HAS_BOTH(buf->vb.field));
856         if (buf->fmt->yuv)
857                 saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x03);
858         else
859                 saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x01);
860         saa_writeb(SAA7134_OFMT_VIDEO_A, buf->fmt->pm);
861
862         /* DMA: setup channel 0 (= Video Task A0) */
863         base  = saa7134_buffer_base(buf);
864         if (buf->fmt->planar)
865                 bpl = buf->vb.width;
866         else
867                 bpl = (buf->vb.width * buf->fmt->depth) / 8;
868         control = SAA7134_RS_CONTROL_BURST_16 |
869                 SAA7134_RS_CONTROL_ME |
870                 (buf->pt->dma >> 12);
871         if (buf->fmt->bswap)
872                 control |= SAA7134_RS_CONTROL_BSWAP;
873         if (buf->fmt->wswap)
874                 control |= SAA7134_RS_CONTROL_WSWAP;
875         if (V4L2_FIELD_HAS_BOTH(buf->vb.field)) {
876                 /* interlaced */
877                 saa_writel(SAA7134_RS_BA1(0),base);
878                 saa_writel(SAA7134_RS_BA2(0),base+bpl);
879                 saa_writel(SAA7134_RS_PITCH(0),bpl*2);
880         } else {
881                 /* non-interlaced */
882                 saa_writel(SAA7134_RS_BA1(0),base);
883                 saa_writel(SAA7134_RS_BA2(0),base);
884                 saa_writel(SAA7134_RS_PITCH(0),bpl);
885         }
886         saa_writel(SAA7134_RS_CONTROL(0),control);
887
888         if (buf->fmt->planar) {
889                 /* DMA: setup channel 4+5 (= planar task A) */
890                 bpl_uv   = bpl >> buf->fmt->hshift;
891                 lines_uv = buf->vb.height >> buf->fmt->vshift;
892                 base2    = base + bpl * buf->vb.height;
893                 base3    = base2 + bpl_uv * lines_uv;
894                 if (buf->fmt->uvswap)
895                         tmp = base2, base2 = base3, base3 = tmp;
896                 dprintk("uv: bpl=%ld lines=%ld base2/3=%ld/%ld\n",
897                         bpl_uv,lines_uv,base2,base3);
898                 if (V4L2_FIELD_HAS_BOTH(buf->vb.field)) {
899                         /* interlaced */
900                         saa_writel(SAA7134_RS_BA1(4),base2);
901                         saa_writel(SAA7134_RS_BA2(4),base2+bpl_uv);
902                         saa_writel(SAA7134_RS_PITCH(4),bpl_uv*2);
903                         saa_writel(SAA7134_RS_BA1(5),base3);
904                         saa_writel(SAA7134_RS_BA2(5),base3+bpl_uv);
905                         saa_writel(SAA7134_RS_PITCH(5),bpl_uv*2);
906                 } else {
907                         /* non-interlaced */
908                         saa_writel(SAA7134_RS_BA1(4),base2);
909                         saa_writel(SAA7134_RS_BA2(4),base2);
910                         saa_writel(SAA7134_RS_PITCH(4),bpl_uv);
911                         saa_writel(SAA7134_RS_BA1(5),base3);
912                         saa_writel(SAA7134_RS_BA2(5),base3);
913                         saa_writel(SAA7134_RS_PITCH(5),bpl_uv);
914                 }
915                 saa_writel(SAA7134_RS_CONTROL(4),control);
916                 saa_writel(SAA7134_RS_CONTROL(5),control);
917         }
918
919         /* start DMA */
920         saa7134_set_dmabits(dev);
921         mod_timer(&dev->video_q.timeout, jiffies+BUFFER_TIMEOUT);
922         return 0;
923 }
924
925 static int buffer_prepare(struct videobuf_queue *q,
926                           struct videobuf_buffer *vb,
927                           enum v4l2_field field)
928 {
929         struct saa7134_fh *fh = q->priv_data;
930         struct saa7134_dev *dev = fh->dev;
931         struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
932         unsigned int size;
933         int err;
934
935         /* sanity checks */
936         if (NULL == fh->fmt)
937                 return -EINVAL;
938         if (fh->width    < 48 ||
939             fh->height   < 32 ||
940             fh->width/4  > dev->crop_current.width  ||
941             fh->height/4 > dev->crop_current.height ||
942             fh->width    > dev->crop_bounds.width  ||
943             fh->height   > dev->crop_bounds.height)
944                 return -EINVAL;
945         size = (fh->width * fh->height * fh->fmt->depth) >> 3;
946         if (0 != buf->vb.baddr  &&  buf->vb.bsize < size)
947                 return -EINVAL;
948
949         dprintk("buffer_prepare [%d,size=%dx%d,bytes=%d,fields=%s,%s]\n",
950                 vb->i,fh->width,fh->height,size,v4l2_field_names[field],
951                 fh->fmt->name);
952         if (buf->vb.width  != fh->width  ||
953             buf->vb.height != fh->height ||
954             buf->vb.size   != size       ||
955             buf->vb.field  != field      ||
956             buf->fmt       != fh->fmt) {
957                 saa7134_dma_free(dev,buf);
958         }
959
960         if (STATE_NEEDS_INIT == buf->vb.state) {
961                 buf->vb.width  = fh->width;
962                 buf->vb.height = fh->height;
963                 buf->vb.size   = size;
964                 buf->vb.field  = field;
965                 buf->fmt       = fh->fmt;
966                 buf->pt        = &fh->pt_cap;
967
968                 err = videobuf_iolock(dev->pci,&buf->vb,&dev->ovbuf);
969                 if (err)
970                         goto oops;
971                 err = saa7134_pgtable_build(dev->pci,buf->pt,
972                                             buf->vb.dma.sglist,
973                                             buf->vb.dma.sglen,
974                                             saa7134_buffer_startpage(buf));
975                 if (err)
976                         goto oops;
977         }
978         buf->vb.state = STATE_PREPARED;
979         buf->activate = buffer_activate;
980         return 0;
981
982  oops:
983         saa7134_dma_free(dev,buf);
984         return err;
985 }
986
987 static int
988 buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
989 {
990         struct saa7134_fh *fh = q->priv_data;
991
992         *size = fh->fmt->depth * fh->width * fh->height >> 3;
993         if (0 == *count)
994                 *count = gbuffers;
995         *count = saa7134_buffer_count(*size,*count);
996         return 0;
997 }
998
999 static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
1000 {
1001         struct saa7134_fh *fh = q->priv_data;
1002         struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
1003
1004         saa7134_buffer_queue(fh->dev,&fh->dev->video_q,buf);
1005 }
1006
1007 static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
1008 {
1009         struct saa7134_fh *fh = q->priv_data;
1010         struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
1011
1012         saa7134_dma_free(fh->dev,buf);
1013 }
1014
1015 static struct videobuf_queue_ops video_qops = {
1016         .buf_setup    = buffer_setup,
1017         .buf_prepare  = buffer_prepare,
1018         .buf_queue    = buffer_queue,
1019         .buf_release  = buffer_release,
1020 };
1021
1022 /* ------------------------------------------------------------------ */
1023
1024 static int get_control(struct saa7134_dev *dev, struct v4l2_control *c)
1025 {
1026         const struct v4l2_queryctrl* ctrl;
1027
1028         ctrl = ctrl_by_id(c->id);
1029         if (NULL == ctrl)
1030                 return -EINVAL;
1031         switch (c->id) {
1032         case V4L2_CID_BRIGHTNESS:
1033                 c->value = dev->ctl_bright;
1034                 break;
1035         case V4L2_CID_HUE:
1036                 c->value = dev->ctl_hue;
1037                 break;
1038         case V4L2_CID_CONTRAST:
1039                 c->value = dev->ctl_contrast;
1040                 break;
1041         case V4L2_CID_SATURATION:
1042                 c->value = dev->ctl_saturation;
1043                 break;
1044         case V4L2_CID_AUDIO_MUTE:
1045                 c->value = dev->ctl_mute;
1046                 break;
1047         case V4L2_CID_AUDIO_VOLUME:
1048                 c->value = dev->ctl_volume;
1049                 break;
1050         case V4L2_CID_PRIVATE_INVERT:
1051                 c->value = dev->ctl_invert;
1052                 break;
1053         case V4L2_CID_HFLIP:
1054                 c->value = dev->ctl_mirror;
1055                 break;
1056         case V4L2_CID_PRIVATE_Y_EVEN:
1057                 c->value = dev->ctl_y_even;
1058                 break;
1059         case V4L2_CID_PRIVATE_Y_ODD:
1060                 c->value = dev->ctl_y_odd;
1061                 break;
1062         case V4L2_CID_PRIVATE_AUTOMUTE:
1063                 c->value = dev->ctl_automute;
1064                 break;
1065         default:
1066                 return -EINVAL;
1067         }
1068         return 0;
1069 }
1070
1071 static int set_control(struct saa7134_dev *dev, struct saa7134_fh *fh,
1072                        struct v4l2_control *c)
1073 {
1074         const struct v4l2_queryctrl* ctrl;
1075         unsigned long flags;
1076         int restart_overlay = 0;
1077
1078         ctrl = ctrl_by_id(c->id);
1079         if (NULL == ctrl)
1080                 return -EINVAL;
1081         dprintk("set_control name=%s val=%d\n",ctrl->name,c->value);
1082         switch (ctrl->type) {
1083         case V4L2_CTRL_TYPE_BOOLEAN:
1084         case V4L2_CTRL_TYPE_MENU:
1085         case V4L2_CTRL_TYPE_INTEGER:
1086                 if (c->value < ctrl->minimum)
1087                         c->value = ctrl->minimum;
1088                 if (c->value > ctrl->maximum)
1089                         c->value = ctrl->maximum;
1090                 break;
1091         default:
1092                 /* nothing */;
1093         };
1094         switch (c->id) {
1095         case V4L2_CID_BRIGHTNESS:
1096                 dev->ctl_bright = c->value;
1097                 saa_writeb(SAA7134_DEC_LUMA_BRIGHT, dev->ctl_bright);
1098                 break;
1099         case V4L2_CID_HUE:
1100                 dev->ctl_hue = c->value;
1101                 saa_writeb(SAA7134_DEC_CHROMA_HUE, dev->ctl_hue);
1102                 break;
1103         case V4L2_CID_CONTRAST:
1104                 dev->ctl_contrast = c->value;
1105                 saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
1106                            dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
1107                 break;
1108         case V4L2_CID_SATURATION:
1109                 dev->ctl_saturation = c->value;
1110                 saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
1111                            dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
1112                 break;
1113         case V4L2_CID_AUDIO_MUTE:
1114                 dev->ctl_mute = c->value;
1115                 saa7134_tvaudio_setmute(dev);
1116                 break;
1117         case V4L2_CID_AUDIO_VOLUME:
1118                 dev->ctl_volume = c->value;
1119                 saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
1120                 break;
1121         case V4L2_CID_PRIVATE_INVERT:
1122                 dev->ctl_invert = c->value;
1123                 saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
1124                            dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
1125                 saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
1126                            dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
1127                 break;
1128         case V4L2_CID_HFLIP:
1129                 dev->ctl_mirror = c->value;
1130                 restart_overlay = 1;
1131                 break;
1132         case V4L2_CID_PRIVATE_Y_EVEN:
1133                 dev->ctl_y_even = c->value;
1134                 restart_overlay = 1;
1135                 break;
1136         case V4L2_CID_PRIVATE_Y_ODD:
1137                 dev->ctl_y_odd = c->value;
1138                 restart_overlay = 1;
1139                 break;
1140         case V4L2_CID_PRIVATE_AUTOMUTE:
1141                 dev->ctl_automute = c->value;
1142                 if (dev->tda9887_conf) {
1143                         if (dev->ctl_automute)
1144                                 dev->tda9887_conf |= TDA9887_AUTOMUTE;
1145                         else
1146                                 dev->tda9887_conf &= ~TDA9887_AUTOMUTE;
1147                         saa7134_i2c_call_clients(dev, TDA9887_SET_CONFIG,
1148                                                  &dev->tda9887_conf);
1149                 }
1150                 break;
1151         default:
1152                 return -EINVAL;
1153         }
1154         if (restart_overlay && fh && res_check(fh, RESOURCE_OVERLAY)) {
1155                 spin_lock_irqsave(&dev->slock,flags);
1156                 stop_preview(dev,fh);
1157                 start_preview(dev,fh);
1158                 spin_unlock_irqrestore(&dev->slock,flags);
1159         }
1160         return 0;
1161 }
1162
1163 /* ------------------------------------------------------------------ */
1164
1165 static struct videobuf_queue* saa7134_queue(struct saa7134_fh *fh)
1166 {
1167         struct videobuf_queue* q = NULL;
1168
1169         switch (fh->type) {
1170         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1171                 q = &fh->cap;
1172                 break;
1173         case V4L2_BUF_TYPE_VBI_CAPTURE:
1174                 q = &fh->vbi;
1175                 break;
1176         default:
1177                 BUG();
1178         }
1179         return q;
1180 }
1181
1182 static int saa7134_resource(struct saa7134_fh *fh)
1183 {
1184         int res = 0;
1185
1186         switch (fh->type) {
1187         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1188                 res = RESOURCE_VIDEO;
1189                 break;
1190         case V4L2_BUF_TYPE_VBI_CAPTURE:
1191                 res = RESOURCE_VBI;
1192                 break;
1193         default:
1194                 BUG();
1195         }
1196         return res;
1197 }
1198
1199 static int video_open(struct inode *inode, struct file *file)
1200 {
1201         int minor = iminor(inode);
1202         struct saa7134_dev *h,*dev = NULL;
1203         struct saa7134_fh *fh;
1204         struct list_head *list;
1205         enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1206         int radio = 0;
1207
1208         list_for_each(list,&saa7134_devlist) {
1209                 h = list_entry(list, struct saa7134_dev, devlist);
1210                 if (h->video_dev && (h->video_dev->minor == minor))
1211                         dev = h;
1212                 if (h->radio_dev && (h->radio_dev->minor == minor)) {
1213                         radio = 1;
1214                         dev = h;
1215                 }
1216                 if (h->vbi_dev && (h->vbi_dev->minor == minor)) {
1217                         type = V4L2_BUF_TYPE_VBI_CAPTURE;
1218                         dev = h;
1219                 }
1220         }
1221         if (NULL == dev)
1222                 return -ENODEV;
1223
1224         dprintk("open minor=%d radio=%d type=%s\n",minor,radio,
1225                 v4l2_type_names[type]);
1226
1227         /* allocate + initialize per filehandle data */
1228         fh = kmalloc(sizeof(*fh),GFP_KERNEL);
1229         if (NULL == fh)
1230                 return -ENOMEM;
1231         memset(fh,0,sizeof(*fh));
1232         file->private_data = fh;
1233         fh->dev      = dev;
1234         fh->radio    = radio;
1235         fh->type     = type;
1236         fh->fmt      = format_by_fourcc(V4L2_PIX_FMT_BGR24);
1237         fh->width    = 720;
1238         fh->height   = 576;
1239         v4l2_prio_open(&dev->prio,&fh->prio);
1240
1241         videobuf_queue_init(&fh->cap, &video_qops,
1242                             dev->pci, &dev->slock,
1243                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
1244                             V4L2_FIELD_INTERLACED,
1245                             sizeof(struct saa7134_buf),
1246                             fh);
1247         videobuf_queue_init(&fh->vbi, &saa7134_vbi_qops,
1248                             dev->pci, &dev->slock,
1249                             V4L2_BUF_TYPE_VBI_CAPTURE,
1250                             V4L2_FIELD_SEQ_TB,
1251                             sizeof(struct saa7134_buf),
1252                             fh);
1253         saa7134_pgtable_alloc(dev->pci,&fh->pt_cap);
1254         saa7134_pgtable_alloc(dev->pci,&fh->pt_vbi);
1255
1256         if (fh->radio) {
1257                 /* switch to radio mode */
1258                 saa7134_tvaudio_setinput(dev,&card(dev).radio);
1259                 saa7134_i2c_call_clients(dev,AUDC_SET_RADIO,NULL);
1260         } else {
1261                 /* switch to video/vbi mode */
1262                 video_mux(dev,dev->ctl_input);
1263         }
1264         return 0;
1265 }
1266
1267 static ssize_t
1268 video_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
1269 {
1270         struct saa7134_fh *fh = file->private_data;
1271
1272         switch (fh->type) {
1273         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1274                 if (res_locked(fh->dev,RESOURCE_VIDEO))
1275                         return -EBUSY;
1276                 return videobuf_read_one(saa7134_queue(fh),
1277                                          data, count, ppos,
1278                                          file->f_flags & O_NONBLOCK);
1279         case V4L2_BUF_TYPE_VBI_CAPTURE:
1280                 if (!res_get(fh->dev,fh,RESOURCE_VBI))
1281                         return -EBUSY;
1282                 return videobuf_read_stream(saa7134_queue(fh),
1283                                             data, count, ppos, 1,
1284                                             file->f_flags & O_NONBLOCK);
1285                 break;
1286         default:
1287                 BUG();
1288                 return 0;
1289         }
1290 }
1291
1292 static unsigned int
1293 video_poll(struct file *file, struct poll_table_struct *wait)
1294 {
1295         struct saa7134_fh *fh = file->private_data;
1296         struct videobuf_buffer *buf = NULL;
1297
1298         if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type)
1299                 return videobuf_poll_stream(file, &fh->vbi, wait);
1300
1301         if (res_check(fh,RESOURCE_VIDEO)) {
1302                 if (!list_empty(&fh->cap.stream))
1303                         buf = list_entry(fh->cap.stream.next, struct videobuf_buffer, stream);
1304         } else {
1305                 down(&fh->cap.lock);
1306                 if (UNSET == fh->cap.read_off) {
1307                         /* need to capture a new frame */
1308                         if (res_locked(fh->dev,RESOURCE_VIDEO)) {
1309                                 up(&fh->cap.lock);
1310                                 return POLLERR;
1311                         }
1312                         if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,fh->cap.field)) {
1313                                 up(&fh->cap.lock);
1314                                 return POLLERR;
1315                         }
1316                         fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
1317                         fh->cap.read_off = 0;
1318                 }
1319                 up(&fh->cap.lock);
1320                 buf = fh->cap.read_buf;
1321         }
1322
1323         if (!buf)
1324                 return POLLERR;
1325
1326         poll_wait(file, &buf->done, wait);
1327         if (buf->state == STATE_DONE ||
1328             buf->state == STATE_ERROR)
1329                 return POLLIN|POLLRDNORM;
1330         return 0;
1331 }
1332
1333 static int video_release(struct inode *inode, struct file *file)
1334 {
1335         struct saa7134_fh  *fh  = file->private_data;
1336         struct saa7134_dev *dev = fh->dev;
1337         unsigned long flags;
1338
1339         /* turn off overlay */
1340         if (res_check(fh, RESOURCE_OVERLAY)) {
1341                 spin_lock_irqsave(&dev->slock,flags);
1342                 stop_preview(dev,fh);
1343                 spin_unlock_irqrestore(&dev->slock,flags);
1344                 res_free(dev,fh,RESOURCE_OVERLAY);
1345         }
1346
1347         /* stop video capture */
1348         if (res_check(fh, RESOURCE_VIDEO)) {
1349                 videobuf_streamoff(&fh->cap);
1350                 res_free(dev,fh,RESOURCE_VIDEO);
1351         }
1352         if (fh->cap.read_buf) {
1353                 buffer_release(&fh->cap,fh->cap.read_buf);
1354                 kfree(fh->cap.read_buf);
1355         }
1356
1357         /* stop vbi capture */
1358         if (res_check(fh, RESOURCE_VBI)) {
1359                 if (fh->vbi.streaming)
1360                         videobuf_streamoff(&fh->vbi);
1361                 if (fh->vbi.reading)
1362                         videobuf_read_stop(&fh->vbi);
1363                 res_free(dev,fh,RESOURCE_VBI);
1364         }
1365
1366         /* free stuff */
1367         videobuf_mmap_free(&fh->cap);
1368         videobuf_mmap_free(&fh->vbi);
1369         saa7134_pgtable_free(dev->pci,&fh->pt_cap);
1370         saa7134_pgtable_free(dev->pci,&fh->pt_vbi);
1371
1372         v4l2_prio_close(&dev->prio,&fh->prio);
1373         file->private_data = NULL;
1374         kfree(fh);
1375         return 0;
1376 }
1377
1378 static int
1379 video_mmap(struct file *file, struct vm_area_struct * vma)
1380 {
1381         struct saa7134_fh *fh = file->private_data;
1382
1383         return videobuf_mmap_mapper(saa7134_queue(fh), vma);
1384 }
1385
1386 /* ------------------------------------------------------------------ */
1387
1388 static void saa7134_vbi_fmt(struct saa7134_dev *dev, struct v4l2_format *f)
1389 {
1390         struct saa7134_tvnorm *norm = dev->tvnorm;
1391
1392         f->fmt.vbi.sampling_rate = 6750000 * 4;
1393         f->fmt.vbi.samples_per_line = 2048 /* VBI_LINE_LENGTH */;
1394         f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1395         f->fmt.vbi.offset = 64 * 4;
1396         f->fmt.vbi.start[0] = norm->vbi_v_start_0;
1397         f->fmt.vbi.count[0] = norm->vbi_v_stop_0 - norm->vbi_v_start_0 +1;
1398         f->fmt.vbi.start[1] = norm->vbi_v_start_1;
1399         f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1400         f->fmt.vbi.flags = 0; /* VBI_UNSYNC VBI_INTERLACED */
1401
1402 #if 0
1403         if (V4L2_STD_PAL == norm->id) {
1404                 /* FIXME */
1405                 f->fmt.vbi.start[0] += 3;
1406                 f->fmt.vbi.start[1] += 3*2;
1407         }
1408 #endif
1409 }
1410
1411 static int saa7134_g_fmt(struct saa7134_dev *dev, struct saa7134_fh *fh,
1412                          struct v4l2_format *f)
1413 {
1414         switch (f->type) {
1415         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1416                 memset(&f->fmt.pix,0,sizeof(f->fmt.pix));
1417                 f->fmt.pix.width        = fh->width;
1418                 f->fmt.pix.height       = fh->height;
1419                 f->fmt.pix.field        = fh->cap.field;
1420                 f->fmt.pix.pixelformat  = fh->fmt->fourcc;
1421                 f->fmt.pix.bytesperline =
1422                         (f->fmt.pix.width * fh->fmt->depth) >> 3;
1423                 f->fmt.pix.sizeimage =
1424                         f->fmt.pix.height * f->fmt.pix.bytesperline;
1425                 return 0;
1426         case V4L2_BUF_TYPE_VIDEO_OVERLAY:
1427                 f->fmt.win = fh->win;
1428                 return 0;
1429         case V4L2_BUF_TYPE_VBI_CAPTURE:
1430                 saa7134_vbi_fmt(dev,f);
1431                 return 0;
1432         default:
1433                 return -EINVAL;
1434         }
1435 }
1436
1437 static int saa7134_try_fmt(struct saa7134_dev *dev, struct saa7134_fh *fh,
1438                            struct v4l2_format *f)
1439 {
1440         int err;
1441
1442         switch (f->type) {
1443         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1444         {
1445                 struct saa7134_format *fmt;
1446                 enum v4l2_field field;
1447                 unsigned int maxw, maxh;
1448
1449                 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1450                 if (NULL == fmt)
1451                         return -EINVAL;
1452
1453                 field = f->fmt.pix.field;
1454                 maxw  = min(dev->crop_current.width*4,  dev->crop_bounds.width);
1455                 maxh  = min(dev->crop_current.height*4, dev->crop_bounds.height);
1456
1457                 if (V4L2_FIELD_ANY == field) {
1458                         field = (f->fmt.pix.height > maxh/2)
1459                                 ? V4L2_FIELD_INTERLACED
1460                                 : V4L2_FIELD_BOTTOM;
1461                 }
1462                 switch (field) {
1463                 case V4L2_FIELD_TOP:
1464                 case V4L2_FIELD_BOTTOM:
1465                         maxh = maxh / 2;
1466                         break;
1467                 case V4L2_FIELD_INTERLACED:
1468                         break;
1469                 default:
1470                         return -EINVAL;
1471                 }
1472
1473                 f->fmt.pix.field = field;
1474                 if (f->fmt.pix.width  < 48)
1475                         f->fmt.pix.width  = 48;
1476                 if (f->fmt.pix.height < 32)
1477                         f->fmt.pix.height = 32;
1478                 if (f->fmt.pix.width > maxw)
1479                         f->fmt.pix.width = maxw;
1480                 if (f->fmt.pix.height > maxh)
1481                         f->fmt.pix.height = maxh;
1482                 f->fmt.pix.width &= ~0x03;
1483                 f->fmt.pix.bytesperline =
1484                         (f->fmt.pix.width * fmt->depth) >> 3;
1485                 f->fmt.pix.sizeimage =
1486                         f->fmt.pix.height * f->fmt.pix.bytesperline;
1487
1488                 return 0;
1489         }
1490         case V4L2_BUF_TYPE_VIDEO_OVERLAY:
1491                 err = verify_preview(dev,&f->fmt.win);
1492                 if (0 != err)
1493                         return err;
1494                 return 0;
1495         case V4L2_BUF_TYPE_VBI_CAPTURE:
1496                 saa7134_vbi_fmt(dev,f);
1497                 return 0;
1498         default:
1499                 return -EINVAL;
1500         }
1501 }
1502
1503 static int saa7134_s_fmt(struct saa7134_dev *dev, struct saa7134_fh *fh,
1504                          struct v4l2_format *f)
1505 {
1506         unsigned long flags;
1507         int err;
1508
1509         switch (f->type) {
1510         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1511                 err = saa7134_try_fmt(dev,fh,f);
1512                 if (0 != err)
1513                         return err;
1514
1515                 fh->fmt       = format_by_fourcc(f->fmt.pix.pixelformat);
1516                 fh->width     = f->fmt.pix.width;
1517                 fh->height    = f->fmt.pix.height;
1518                 fh->cap.field = f->fmt.pix.field;
1519                 return 0;
1520         case V4L2_BUF_TYPE_VIDEO_OVERLAY:
1521                 err = verify_preview(dev,&f->fmt.win);
1522                 if (0 != err)
1523                         return err;
1524
1525                 down(&dev->lock);
1526                 fh->win    = f->fmt.win;
1527                 fh->nclips = f->fmt.win.clipcount;
1528                 if (fh->nclips > 8)
1529                         fh->nclips = 8;
1530                 if (copy_from_user(fh->clips,f->fmt.win.clips,
1531                                    sizeof(struct v4l2_clip)*fh->nclips)) {
1532                         up(&dev->lock);
1533                         return -EFAULT;
1534                 }
1535
1536                 if (res_check(fh, RESOURCE_OVERLAY)) {
1537                         spin_lock_irqsave(&dev->slock,flags);
1538                         stop_preview(dev,fh);
1539                         start_preview(dev,fh);
1540                         spin_unlock_irqrestore(&dev->slock,flags);
1541                 }
1542                 up(&dev->lock);
1543                 return 0;
1544         case V4L2_BUF_TYPE_VBI_CAPTURE:
1545                 saa7134_vbi_fmt(dev,f);
1546                 return 0;
1547         default:
1548                 return -EINVAL;
1549         }
1550 }
1551
1552 int saa7134_common_ioctl(struct saa7134_dev *dev,
1553                          unsigned int cmd, void *arg)
1554 {
1555         int err;
1556
1557         switch (cmd) {
1558         case VIDIOC_QUERYCTRL:
1559         {
1560                 const struct v4l2_queryctrl *ctrl;
1561                 struct v4l2_queryctrl *c = arg;
1562
1563                 if ((c->id <  V4L2_CID_BASE ||
1564                      c->id >= V4L2_CID_LASTP1) &&
1565                     (c->id <  V4L2_CID_PRIVATE_BASE ||
1566                      c->id >= V4L2_CID_PRIVATE_LASTP1))
1567                         return -EINVAL;
1568                 ctrl = ctrl_by_id(c->id);
1569                 *c = (NULL != ctrl) ? *ctrl : no_ctrl;
1570                 return 0;
1571         }
1572         case VIDIOC_G_CTRL:
1573                 return get_control(dev,arg);
1574         case VIDIOC_S_CTRL:
1575         {
1576                 down(&dev->lock);
1577                 err = set_control(dev,NULL,arg);
1578                 up(&dev->lock);
1579                 return err;
1580         }
1581         /* --- input switching --------------------------------------- */
1582         case VIDIOC_ENUMINPUT:
1583         {
1584                 struct v4l2_input *i = arg;
1585                 unsigned int n;
1586
1587                 n = i->index;
1588                 if (n >= SAA7134_INPUT_MAX)
1589                         return -EINVAL;
1590                 if (NULL == card_in(dev,i->index).name)
1591                         return -EINVAL;
1592                 memset(i,0,sizeof(*i));
1593                 i->index = n;
1594                 i->type  = V4L2_INPUT_TYPE_CAMERA;
1595                 strcpy(i->name,card_in(dev,n).name);
1596                 if (card_in(dev,n).tv)
1597                         i->type = V4L2_INPUT_TYPE_TUNER;
1598                 i->audioset = 1;
1599                 if (n == dev->ctl_input) {
1600                         int v1 = saa_readb(SAA7134_STATUS_VIDEO1);
1601                         int v2 = saa_readb(SAA7134_STATUS_VIDEO2);
1602
1603                         if (0 != (v1 & 0x40))
1604                                 i->status |= V4L2_IN_ST_NO_H_LOCK;
1605                         if (0 != (v2 & 0x40))
1606                                 i->status |= V4L2_IN_ST_NO_SYNC;
1607                         if (0 != (v2 & 0x0e))
1608                                 i->status |= V4L2_IN_ST_MACROVISION;
1609                 }
1610                 for (n = 0; n < TVNORMS; n++)
1611                         i->std |= tvnorms[n].id;
1612                 return 0;
1613         }
1614         case VIDIOC_G_INPUT:
1615         {
1616                 int *i = arg;
1617                 *i = dev->ctl_input;
1618                 return 0;
1619         }
1620         case VIDIOC_S_INPUT:
1621         {
1622                 int *i = arg;
1623
1624                 if (*i < 0  ||  *i >= SAA7134_INPUT_MAX)
1625                         return -EINVAL;
1626                 if (NULL == card_in(dev,*i).name)
1627                         return -EINVAL;
1628                 down(&dev->lock);
1629                 video_mux(dev,*i);
1630                 up(&dev->lock);
1631                 return 0;
1632         }
1633
1634         }
1635         return 0;
1636 }
1637 EXPORT_SYMBOL(saa7134_common_ioctl);
1638
1639 /*
1640  * This function is _not_ called directly, but from
1641  * video_generic_ioctl (and maybe others).  userspace
1642  * copying is done already, arg is a kernel pointer.
1643  */
1644 static int video_do_ioctl(struct inode *inode, struct file *file,
1645                           unsigned int cmd, void *arg)
1646 {
1647         struct saa7134_fh *fh = file->private_data;
1648         struct saa7134_dev *dev = fh->dev;
1649         unsigned long flags;
1650         int err;
1651
1652         if (video_debug > 1)
1653                 saa7134_print_ioctl(dev->name,cmd);
1654
1655         switch (cmd) {
1656         case VIDIOC_S_CTRL:
1657         case VIDIOC_S_STD:
1658         case VIDIOC_S_INPUT:
1659         case VIDIOC_S_TUNER:
1660         case VIDIOC_S_FREQUENCY:
1661                 err = v4l2_prio_check(&dev->prio,&fh->prio);
1662                 if (0 != err)
1663                         return err;
1664         }
1665
1666         switch (cmd) {
1667         case VIDIOC_QUERYCAP:
1668         {
1669                 struct v4l2_capability *cap = arg;
1670
1671                 memset(cap,0,sizeof(*cap));
1672                 strcpy(cap->driver, "saa7134");
1673                 strlcpy(cap->card, saa7134_boards[dev->board].name,
1674                         sizeof(cap->card));
1675                 sprintf(cap->bus_info,"PCI:%s",pci_name(dev->pci));
1676                 cap->version = SAA7134_VERSION_CODE;
1677                 cap->capabilities =
1678                         V4L2_CAP_VIDEO_CAPTURE |
1679                         V4L2_CAP_VIDEO_OVERLAY |
1680                         V4L2_CAP_VBI_CAPTURE |
1681                         V4L2_CAP_TUNER |
1682                         V4L2_CAP_READWRITE |
1683                         V4L2_CAP_STREAMING;
1684                 return 0;
1685         }
1686
1687         /* --- tv standards ------------------------------------------ */
1688         case VIDIOC_ENUMSTD:
1689         {
1690                 struct v4l2_standard *e = arg;
1691                 unsigned int i;
1692
1693                 i = e->index;
1694                 if (i >= TVNORMS)
1695                         return -EINVAL;
1696                 err = v4l2_video_std_construct(e, tvnorms[e->index].id,
1697                                                tvnorms[e->index].name);
1698                 e->index = i;
1699                 if (err < 0)
1700                         return err;
1701                 return 0;
1702         }
1703         case VIDIOC_G_STD:
1704         {
1705                 v4l2_std_id *id = arg;
1706
1707                 *id = dev->tvnorm->id;
1708                 return 0;
1709         }
1710         case VIDIOC_S_STD:
1711         {
1712                 v4l2_std_id *id = arg;
1713                 unsigned int i;
1714
1715                 for (i = 0; i < TVNORMS; i++)
1716                         if (*id == tvnorms[i].id)
1717                                 break;
1718                 if (i == TVNORMS)
1719                         for (i = 0; i < TVNORMS; i++)
1720                                 if (*id & tvnorms[i].id)
1721                                         break;
1722                 if (i == TVNORMS)
1723                         return -EINVAL;
1724
1725                 down(&dev->lock);
1726                 if (res_check(fh, RESOURCE_OVERLAY)) {
1727                         spin_lock_irqsave(&dev->slock,flags);
1728                         stop_preview(dev,fh);
1729                         set_tvnorm(dev,&tvnorms[i]);
1730                         start_preview(dev,fh);
1731                         spin_unlock_irqrestore(&dev->slock,flags);
1732                 } else
1733                         set_tvnorm(dev,&tvnorms[i]);
1734                 saa7134_tvaudio_do_scan(dev);
1735                 up(&dev->lock);
1736                 return 0;
1737         }
1738
1739         case VIDIOC_CROPCAP:
1740         {
1741                 struct v4l2_cropcap *cap = arg;
1742
1743                 if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1744                     cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1745                         return -EINVAL;
1746                 cap->bounds  = dev->crop_bounds;
1747                 cap->defrect = dev->crop_defrect;
1748                 cap->pixelaspect.numerator   = 1;
1749                 cap->pixelaspect.denominator = 1;
1750                 if (dev->tvnorm->id & V4L2_STD_525_60) {
1751                         cap->pixelaspect.numerator   = 11;
1752                         cap->pixelaspect.denominator = 10;
1753                 }
1754                 if (dev->tvnorm->id & V4L2_STD_625_50) {
1755                         cap->pixelaspect.numerator   = 54;
1756                         cap->pixelaspect.denominator = 59;
1757                 }
1758                 return 0;
1759         }
1760
1761         case VIDIOC_G_CROP:
1762         {
1763                 struct v4l2_crop * crop = arg;
1764
1765                 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1766                     crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1767                         return -EINVAL;
1768                 crop->c = dev->crop_current;
1769                 return 0;
1770         }
1771         case VIDIOC_S_CROP:
1772         {
1773                 struct v4l2_crop *crop = arg;
1774                 struct v4l2_rect *b = &dev->crop_bounds;
1775
1776                 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1777                     crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1778                         return -EINVAL;
1779                 if (crop->c.height < 0)
1780                         return -EINVAL;
1781                 if (crop->c.width < 0)
1782                         return -EINVAL;
1783
1784                 if (res_locked(fh->dev,RESOURCE_OVERLAY))
1785                         return -EBUSY;
1786                 if (res_locked(fh->dev,RESOURCE_VIDEO))
1787                         return -EBUSY;
1788
1789                 if (crop->c.top < b->top)
1790                         crop->c.top = b->top;
1791                 if (crop->c.top > b->top + b->height)
1792                         crop->c.top = b->top + b->height;
1793                 if (crop->c.height > b->top - crop->c.top + b->height)
1794                         crop->c.height = b->top - crop->c.top + b->height;
1795
1796                 if (crop->c.left < b->left)
1797                         crop->c.top = b->left;
1798                 if (crop->c.left > b->left + b->width)
1799                         crop->c.top = b->left + b->width;
1800                 if (crop->c.width > b->left - crop->c.left + b->width)
1801                         crop->c.width = b->left - crop->c.left + b->width;
1802
1803                 dev->crop_current = crop->c;
1804                 return 0;
1805         }
1806
1807         /* --- tuner ioctls ------------------------------------------ */
1808         case VIDIOC_G_TUNER:
1809         {
1810                 struct v4l2_tuner *t = arg;
1811                 int n;
1812
1813                 if (0 != t->index)
1814                         return -EINVAL;
1815                 memset(t,0,sizeof(*t));
1816                 for (n = 0; n < SAA7134_INPUT_MAX; n++)
1817                         if (card_in(dev,n).tv)
1818                                 break;
1819                 if (NULL != card_in(dev,n).name) {
1820                         strcpy(t->name, "Television");
1821                         t->capability = V4L2_TUNER_CAP_NORM |
1822                                 V4L2_TUNER_CAP_STEREO |
1823                                 V4L2_TUNER_CAP_LANG1 |
1824                                 V4L2_TUNER_CAP_LANG2;
1825                         t->rangehigh = 0xffffffffUL;
1826                         t->rxsubchans = saa7134_tvaudio_getstereo(dev);
1827                         t->audmode = saa7134_tvaudio_rx2mode(t->rxsubchans);
1828                 }
1829                 if (0 != (saa_readb(SAA7134_STATUS_VIDEO1) & 0x03))
1830                         t->signal = 0xffff;
1831                 return 0;
1832         }
1833         case VIDIOC_S_TUNER:
1834         {
1835                 struct v4l2_tuner *t = arg;
1836                 int rx,mode;
1837
1838                 mode = dev->thread.mode;
1839                 if (UNSET == mode) {
1840                         rx   = saa7134_tvaudio_getstereo(dev);
1841                         mode = saa7134_tvaudio_rx2mode(t->rxsubchans);
1842                 }
1843                 if (mode != t->audmode) {
1844                         dev->thread.mode = t->audmode;
1845                 }
1846                 return 0;
1847         }
1848         case VIDIOC_G_FREQUENCY:
1849         {
1850                 struct v4l2_frequency *f = arg;
1851
1852                 memset(f,0,sizeof(*f));
1853                 f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1854                 f->frequency = dev->ctl_freq;
1855                 return 0;
1856         }
1857         case VIDIOC_S_FREQUENCY:
1858         {
1859                 struct v4l2_frequency *f = arg;
1860
1861                 if (0 != f->tuner)
1862                         return -EINVAL;
1863                 if (0 == fh->radio && V4L2_TUNER_ANALOG_TV != f->type)
1864                         return -EINVAL;
1865                 if (1 == fh->radio && V4L2_TUNER_RADIO != f->type)
1866                         return -EINVAL;
1867                 down(&dev->lock);
1868                 dev->ctl_freq = f->frequency;
1869
1870                 saa7134_i2c_call_clients(dev,VIDIOC_S_FREQUENCY,f);
1871
1872                 saa7134_tvaudio_do_scan(dev);
1873                 up(&dev->lock);
1874                 return 0;
1875         }
1876
1877         /* --- control ioctls ---------------------------------------- */
1878         case VIDIOC_ENUMINPUT:
1879         case VIDIOC_G_INPUT:
1880         case VIDIOC_S_INPUT:
1881         case VIDIOC_QUERYCTRL:
1882         case VIDIOC_G_CTRL:
1883         case VIDIOC_S_CTRL:
1884                 return saa7134_common_ioctl(dev, cmd, arg);
1885
1886         case VIDIOC_G_AUDIO:
1887         {
1888                 struct v4l2_audio *a = arg;
1889
1890                 memset(a,0,sizeof(*a));
1891                 strcpy(a->name,"audio");
1892                 return 0;
1893         }
1894         case VIDIOC_S_AUDIO:
1895                 return 0;
1896         case VIDIOC_G_PARM:
1897         {
1898                 struct v4l2_captureparm *parm = arg;
1899                 memset(parm,0,sizeof(*parm));
1900                 return 0;
1901         }
1902
1903         case VIDIOC_G_PRIORITY:
1904         {
1905                 enum v4l2_priority *p = arg;
1906
1907                 *p = v4l2_prio_max(&dev->prio);
1908                 return 0;
1909         }
1910         case VIDIOC_S_PRIORITY:
1911         {
1912                 enum v4l2_priority *prio = arg;
1913
1914                 return v4l2_prio_change(&dev->prio, &fh->prio, *prio);
1915         }
1916
1917         /* --- preview ioctls ---------------------------------------- */
1918         case VIDIOC_ENUM_FMT:
1919         {
1920                 struct v4l2_fmtdesc *f = arg;
1921                 enum v4l2_buf_type type;
1922                 unsigned int index;
1923
1924                 index = f->index;
1925                 type  = f->type;
1926                 switch (type) {
1927                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1928                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
1929                         if (index >= FORMATS)
1930                                 return -EINVAL;
1931                         if (f->type == V4L2_BUF_TYPE_VIDEO_OVERLAY &&
1932                             formats[index].planar)
1933                                 return -EINVAL;
1934                         memset(f,0,sizeof(*f));
1935                         f->index = index;
1936                         f->type  = type;
1937                         strlcpy(f->description,formats[index].name,sizeof(f->description));
1938                         f->pixelformat = formats[index].fourcc;
1939                         break;
1940                 case V4L2_BUF_TYPE_VBI_CAPTURE:
1941                         if (0 != index)
1942                                 return -EINVAL;
1943                         memset(f,0,sizeof(*f));
1944                         f->index = index;
1945                         f->type  = type;
1946                         f->pixelformat = V4L2_PIX_FMT_GREY;
1947                         strcpy(f->description,"vbi data");
1948                         break;
1949                 default:
1950                         return -EINVAL;
1951                 }
1952                 return 0;
1953         }
1954         case VIDIOC_G_FBUF:
1955         {
1956                 struct v4l2_framebuffer *fb = arg;
1957
1958                 *fb = dev->ovbuf;
1959                 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
1960                 return 0;
1961         }
1962         case VIDIOC_S_FBUF:
1963         {
1964                 struct v4l2_framebuffer *fb = arg;
1965                 struct saa7134_format *fmt;
1966
1967                 if(!capable(CAP_SYS_ADMIN) &&
1968                    !capable(CAP_SYS_RAWIO))
1969                         return -EPERM;
1970
1971                 /* check args */
1972                 fmt = format_by_fourcc(fb->fmt.pixelformat);
1973                 if (NULL == fmt)
1974                         return -EINVAL;
1975
1976                 /* ok, accept it */
1977                 dev->ovbuf = *fb;
1978                 dev->ovfmt = fmt;
1979                 if (0 == dev->ovbuf.fmt.bytesperline)
1980                         dev->ovbuf.fmt.bytesperline =
1981                                 dev->ovbuf.fmt.width*fmt->depth/8;
1982                 return 0;
1983         }
1984         case VIDIOC_OVERLAY:
1985         {
1986                 int *on = arg;
1987
1988                 if (*on) {
1989                         if (!res_get(dev,fh,RESOURCE_OVERLAY))
1990                                 return -EBUSY;
1991                         spin_lock_irqsave(&dev->slock,flags);
1992                         start_preview(dev,fh);
1993                         spin_unlock_irqrestore(&dev->slock,flags);
1994                 }
1995                 if (!*on) {
1996                         if (!res_check(fh, RESOURCE_OVERLAY))
1997                                 return -EINVAL;
1998                         spin_lock_irqsave(&dev->slock,flags);
1999                         stop_preview(dev,fh);
2000                         spin_unlock_irqrestore(&dev->slock,flags);
2001                         res_free(dev,fh,RESOURCE_OVERLAY);
2002                 }
2003                 return 0;
2004         }
2005
2006         /* --- capture ioctls ---------------------------------------- */
2007         case VIDIOC_G_FMT:
2008         {
2009                 struct v4l2_format *f = arg;
2010                 return saa7134_g_fmt(dev,fh,f);
2011         }
2012         case VIDIOC_S_FMT:
2013         {
2014                 struct v4l2_format *f = arg;
2015                 return saa7134_s_fmt(dev,fh,f);
2016         }
2017         case VIDIOC_TRY_FMT:
2018         {
2019                 struct v4l2_format *f = arg;
2020                 return saa7134_try_fmt(dev,fh,f);
2021         }
2022
2023         case VIDIOCGMBUF:
2024         {
2025                 struct video_mbuf *mbuf = arg;
2026                 struct videobuf_queue *q;
2027                 struct v4l2_requestbuffers req;
2028                 unsigned int i;
2029
2030                 q = saa7134_queue(fh);
2031                 memset(&req,0,sizeof(req));
2032                 req.type   = q->type;
2033                 req.count  = gbuffers;
2034                 req.memory = V4L2_MEMORY_MMAP;
2035                 err = videobuf_reqbufs(q,&req);
2036                 if (err < 0)
2037                         return err;
2038                 memset(mbuf,0,sizeof(*mbuf));
2039                 mbuf->frames = req.count;
2040                 mbuf->size   = 0;
2041                 for (i = 0; i < mbuf->frames; i++) {
2042                         mbuf->offsets[i]  = q->bufs[i]->boff;
2043                         mbuf->size       += q->bufs[i]->bsize;
2044                 }
2045                 return 0;
2046         }
2047         case VIDIOC_REQBUFS:
2048                 return videobuf_reqbufs(saa7134_queue(fh),arg);
2049
2050         case VIDIOC_QUERYBUF:
2051                 return videobuf_querybuf(saa7134_queue(fh),arg);
2052
2053         case VIDIOC_QBUF:
2054                 return videobuf_qbuf(saa7134_queue(fh),arg);
2055
2056         case VIDIOC_DQBUF:
2057                 return videobuf_dqbuf(saa7134_queue(fh),arg,
2058                                       file->f_flags & O_NONBLOCK);
2059
2060         case VIDIOC_STREAMON:
2061         {
2062                 int res = saa7134_resource(fh);
2063
2064                 if (!res_get(dev,fh,res))
2065                         return -EBUSY;
2066                 return videobuf_streamon(saa7134_queue(fh));
2067         }
2068         case VIDIOC_STREAMOFF:
2069         {
2070                 int res = saa7134_resource(fh);
2071
2072                 err = videobuf_streamoff(saa7134_queue(fh));
2073                 if (err < 0)
2074                         return err;
2075                 res_free(dev,fh,res);
2076                 return 0;
2077         }
2078
2079         default:
2080                 return v4l_compat_translate_ioctl(inode,file,cmd,arg,
2081                                                   video_do_ioctl);
2082         }
2083         return 0;
2084 }
2085
2086 static int video_ioctl(struct inode *inode, struct file *file,
2087                        unsigned int cmd, unsigned long arg)
2088 {
2089         return video_usercopy(inode, file, cmd, arg, video_do_ioctl);
2090 }
2091
2092 static int radio_do_ioctl(struct inode *inode, struct file *file,
2093                           unsigned int cmd, void *arg)
2094 {
2095         struct saa7134_fh *fh = file->private_data;
2096         struct saa7134_dev *dev = fh->dev;
2097
2098         if (video_debug > 1)
2099                 saa7134_print_ioctl(dev->name,cmd);
2100         switch (cmd) {
2101         case VIDIOC_QUERYCAP:
2102         {
2103                 struct v4l2_capability *cap = arg;
2104
2105                 memset(cap,0,sizeof(*cap));
2106                 strcpy(cap->driver, "saa7134");
2107                 strlcpy(cap->card, saa7134_boards[dev->board].name,
2108                         sizeof(cap->card));
2109                 sprintf(cap->bus_info,"PCI:%s",pci_name(dev->pci));
2110                 cap->version = SAA7134_VERSION_CODE;
2111                 cap->capabilities = V4L2_CAP_TUNER;
2112                 return 0;
2113         }
2114         case VIDIOC_G_TUNER:
2115         {
2116                 struct v4l2_tuner *t = arg;
2117
2118                 if (0 != t->index)
2119                         return -EINVAL;
2120
2121                 memset(t,0,sizeof(*t));
2122                 strcpy(t->name, "Radio");
2123                 t->rangelow  = (int)(65*16);
2124                 t->rangehigh = (int)(108*16);
2125
2126                 saa7134_i2c_call_clients(dev, VIDIOC_G_TUNER, t);
2127
2128                 return 0;
2129         }
2130         case VIDIOC_S_TUNER:
2131         {
2132                 struct v4l2_tuner *t = arg;
2133
2134                 if (0 != t->index)
2135                         return -EINVAL;
2136
2137                 saa7134_i2c_call_clients(dev,VIDIOC_S_TUNER,t);
2138
2139                 return 0;
2140         }
2141         case VIDIOC_ENUMINPUT:
2142         {
2143                 struct v4l2_input *i = arg;
2144
2145                 if (i->index != 0)
2146                         return -EINVAL;
2147                 strcpy(i->name,"Radio");
2148                 i->type = V4L2_INPUT_TYPE_TUNER;
2149                 return 0;
2150         }
2151         case VIDIOC_G_INPUT:
2152         {
2153                 int *i = arg;
2154                 *i = 0;
2155                 return 0;
2156         }
2157         case VIDIOC_G_AUDIO:
2158         {
2159                 struct v4l2_audio *a = arg;
2160
2161                 memset(a,0,sizeof(*a));
2162                 strcpy(a->name,"Radio");
2163                 return 0;
2164         }
2165         case VIDIOC_G_STD:
2166         {
2167                 v4l2_std_id *id = arg;
2168                 *id = 0;
2169                 return 0;
2170         }
2171         case VIDIOC_S_AUDIO:
2172         case VIDIOC_S_INPUT:
2173         case VIDIOC_S_STD:
2174                 return 0;
2175
2176         case VIDIOC_QUERYCTRL:
2177         {
2178                 const struct v4l2_queryctrl *ctrl;
2179                 struct v4l2_queryctrl *c = arg;
2180
2181                 if (c->id <  V4L2_CID_BASE ||
2182                     c->id >= V4L2_CID_LASTP1)
2183                         return -EINVAL;
2184                 if (c->id == V4L2_CID_AUDIO_MUTE) {
2185                         ctrl = ctrl_by_id(c->id);
2186                         *c = *ctrl;
2187                 } else
2188                         *c = no_ctrl;
2189                 return 0;
2190         }
2191
2192         case VIDIOC_G_CTRL:
2193         case VIDIOC_S_CTRL:
2194         case VIDIOC_G_FREQUENCY:
2195         case VIDIOC_S_FREQUENCY:
2196                 return video_do_ioctl(inode,file,cmd,arg);
2197
2198         default:
2199                 return v4l_compat_translate_ioctl(inode,file,cmd,arg,
2200                                                   radio_do_ioctl);
2201         }
2202         return 0;
2203 }
2204
2205 static int radio_ioctl(struct inode *inode, struct file *file,
2206                        unsigned int cmd, unsigned long arg)
2207 {
2208         return video_usercopy(inode, file, cmd, arg, radio_do_ioctl);
2209 }
2210
2211 static struct file_operations video_fops =
2212 {
2213         .owner    = THIS_MODULE,
2214         .open     = video_open,
2215         .release  = video_release,
2216         .read     = video_read,
2217         .poll     = video_poll,
2218         .mmap     = video_mmap,
2219         .ioctl    = video_ioctl,
2220         .llseek   = no_llseek,
2221 };
2222
2223 static struct file_operations radio_fops =
2224 {
2225         .owner    = THIS_MODULE,
2226         .open     = video_open,
2227         .release  = video_release,
2228         .ioctl    = radio_ioctl,
2229         .llseek   = no_llseek,
2230 };
2231
2232 /* ----------------------------------------------------------- */
2233 /* exported stuff                                              */
2234
2235 struct video_device saa7134_video_template =
2236 {
2237         .name          = "saa7134-video",
2238         .type          = VID_TYPE_CAPTURE|VID_TYPE_TUNER|VID_TYPE_OVERLAY|
2239                          VID_TYPE_CLIPPING|VID_TYPE_SCALES,
2240         .hardware      = 0,
2241         .fops          = &video_fops,
2242         .minor         = -1,
2243 };
2244
2245 struct video_device saa7134_vbi_template =
2246 {
2247         .name          = "saa7134-vbi",
2248         .type          = VID_TYPE_TUNER|VID_TYPE_TELETEXT,
2249         .hardware      = 0,
2250         .fops          = &video_fops,
2251         .minor         = -1,
2252 };
2253
2254 struct video_device saa7134_radio_template =
2255 {
2256         .name          = "saa7134-radio",
2257         .type          = VID_TYPE_TUNER,
2258         .hardware      = 0,
2259         .fops          = &radio_fops,
2260         .minor         = -1,
2261 };
2262
2263 int saa7134_video_init1(struct saa7134_dev *dev)
2264 {
2265         /* sanitycheck insmod options */
2266         if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
2267                 gbuffers = 2;
2268         if (gbufsize < 0 || gbufsize > gbufsize_max)
2269                 gbufsize = gbufsize_max;
2270         gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
2271
2272         /* put some sensible defaults into the data structures ... */
2273         dev->ctl_bright     = ctrl_by_id(V4L2_CID_BRIGHTNESS)->default_value;
2274         dev->ctl_contrast   = ctrl_by_id(V4L2_CID_CONTRAST)->default_value;
2275         dev->ctl_hue        = ctrl_by_id(V4L2_CID_HUE)->default_value;
2276         dev->ctl_saturation = ctrl_by_id(V4L2_CID_SATURATION)->default_value;
2277         dev->ctl_volume     = ctrl_by_id(V4L2_CID_AUDIO_VOLUME)->default_value;
2278         dev->ctl_mute       = 1; // ctrl_by_id(V4L2_CID_AUDIO_MUTE)->default_value;
2279         dev->ctl_invert     = ctrl_by_id(V4L2_CID_PRIVATE_INVERT)->default_value;
2280         dev->ctl_automute   = ctrl_by_id(V4L2_CID_PRIVATE_AUTOMUTE)->default_value;
2281
2282         if (dev->tda9887_conf && dev->ctl_automute)
2283                 dev->tda9887_conf |= TDA9887_AUTOMUTE;
2284         dev->automute       = 0;
2285
2286         INIT_LIST_HEAD(&dev->video_q.queue);
2287         init_timer(&dev->video_q.timeout);
2288         dev->video_q.timeout.function = saa7134_buffer_timeout;
2289         dev->video_q.timeout.data     = (unsigned long)(&dev->video_q);
2290         dev->video_q.dev              = dev;
2291
2292         if (saa7134_boards[dev->board].video_out) {
2293                 /* enable video output */
2294                 int vo = saa7134_boards[dev->board].video_out;
2295                 saa_writeb(SAA7134_VIDEO_PORT_CTRL0, video_out[vo][0]);
2296                 saa_writeb(SAA7134_VIDEO_PORT_CTRL1, video_out[vo][1]);
2297                 saa_writeb(SAA7134_VIDEO_PORT_CTRL2, video_out[vo][2]);
2298                 saa_writeb(SAA7134_VIDEO_PORT_CTRL3, video_out[vo][3]);
2299                 saa_writeb(SAA7134_VIDEO_PORT_CTRL4, video_out[vo][4]);
2300                 saa_writeb(SAA7134_VIDEO_PORT_CTRL5, video_out[vo][5]);
2301                 saa_writeb(SAA7134_VIDEO_PORT_CTRL6, video_out[vo][6]);
2302                 saa_writeb(SAA7134_VIDEO_PORT_CTRL7, video_out[vo][7]);
2303                 saa_writeb(SAA7134_VIDEO_PORT_CTRL8, video_out[vo][8]);
2304         }
2305
2306         return 0;
2307 }
2308
2309 int saa7134_video_init2(struct saa7134_dev *dev)
2310 {
2311         /* init video hw */
2312         set_tvnorm(dev,&tvnorms[0]);
2313         video_mux(dev,0);
2314         saa7134_tvaudio_setmute(dev);
2315         saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
2316         return 0;
2317 }
2318
2319 int saa7134_video_fini(struct saa7134_dev *dev)
2320 {
2321         /* nothing */
2322         return 0;
2323 }
2324
2325 void saa7134_irq_video_intl(struct saa7134_dev *dev)
2326 {
2327         static const char *st[] = {
2328                 "(no signal)", "NTSC", "PAL", "SECAM" };
2329         u32 st1,st2;
2330
2331         st1 = saa_readb(SAA7134_STATUS_VIDEO1);
2332         st2 = saa_readb(SAA7134_STATUS_VIDEO2);
2333         dprintk("DCSDT: pll: %s, sync: %s, norm: %s\n",
2334                 (st1 & 0x40) ? "not locked" : "locked",
2335                 (st2 & 0x40) ? "no"         : "yes",
2336                 st[st1 & 0x03]);
2337         dev->nosignal = (st1 & 0x40) || (st2 & 0x40);
2338
2339         if (dev->nosignal) {
2340                 /* no video signal -> mute audio */
2341                 if (dev->ctl_automute)
2342                         dev->automute = 1;
2343                 saa7134_tvaudio_setmute(dev);
2344                 saa_setb(SAA7134_SYNC_CTRL, 0x20);
2345         } else {
2346                 /* wake up tvaudio audio carrier scan thread */
2347                 saa7134_tvaudio_do_scan(dev);
2348                 if (!noninterlaced)
2349                         saa_clearb(SAA7134_SYNC_CTRL, 0x20);
2350         }
2351         if (dev->mops && dev->mops->signal_change)
2352                 dev->mops->signal_change(dev);
2353 }
2354
2355 void saa7134_irq_video_done(struct saa7134_dev *dev, unsigned long status)
2356 {
2357         enum v4l2_field field;
2358
2359         spin_lock(&dev->slock);
2360         if (dev->video_q.curr) {
2361                 dev->video_fieldcount++;
2362                 field = dev->video_q.curr->vb.field;
2363                 if (V4L2_FIELD_HAS_BOTH(field)) {
2364                         /* make sure we have seen both fields */
2365                         if ((status & 0x10) == 0x00) {
2366                                 dev->video_q.curr->top_seen = 1;
2367                                 goto done;
2368                         }
2369                         if (!dev->video_q.curr->top_seen)
2370                                 goto done;
2371                 } else if (field == V4L2_FIELD_TOP) {
2372                         if ((status & 0x10) != 0x10)
2373                                 goto done;
2374                 } else if (field == V4L2_FIELD_BOTTOM) {
2375                         if ((status & 0x10) != 0x00)
2376                                 goto done;
2377                 }
2378                 dev->video_q.curr->vb.field_count = dev->video_fieldcount;
2379                 saa7134_buffer_finish(dev,&dev->video_q,STATE_DONE);
2380         }
2381         saa7134_buffer_next(dev,&dev->video_q);
2382
2383  done:
2384         spin_unlock(&dev->slock);
2385 }
2386
2387 /* ----------------------------------------------------------- */
2388 /*
2389  * Local variables:
2390  * c-basic-offset: 8
2391  * End:
2392  */