GNU Linux-libre 6.7.9-gnu
[releases.git] / drivers / media / usb / go7007 / go7007-v4l2.c
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Copyright (C) 2005-2006 Micronas USA Inc.
4  */
5
6 #include <linux/module.h>
7 #include <linux/delay.h>
8 #include <linux/sched.h>
9 #include <linux/spinlock.h>
10 #include <linux/slab.h>
11 #include <linux/fs.h>
12 #include <linux/unistd.h>
13 #include <linux/time.h>
14 #include <linux/vmalloc.h>
15 #include <linux/pagemap.h>
16 #include <linux/i2c.h>
17 #include <linux/mutex.h>
18 #include <linux/uaccess.h>
19 #include <linux/videodev2.h>
20 #include <media/v4l2-common.h>
21 #include <media/v4l2-ioctl.h>
22 #include <media/v4l2-subdev.h>
23 #include <media/v4l2-event.h>
24 #include <media/videobuf2-vmalloc.h>
25 #include <media/i2c/saa7115.h>
26
27 #include "go7007-priv.h"
28
29 #define call_all(dev, o, f, args...) \
30         v4l2_device_call_until_err(dev, 0, o, f, ##args)
31
32 static bool valid_pixelformat(u32 pixelformat)
33 {
34         switch (pixelformat) {
35         case V4L2_PIX_FMT_MJPEG:
36         case V4L2_PIX_FMT_MPEG1:
37         case V4L2_PIX_FMT_MPEG2:
38         case V4L2_PIX_FMT_MPEG4:
39                 return true;
40         default:
41                 return false;
42         }
43 }
44
45 static u32 get_frame_type_flag(struct go7007_buffer *vb, int format)
46 {
47         u8 *ptr = vb2_plane_vaddr(&vb->vb.vb2_buf, 0);
48
49         switch (format) {
50         case V4L2_PIX_FMT_MJPEG:
51                 return V4L2_BUF_FLAG_KEYFRAME;
52         case V4L2_PIX_FMT_MPEG4:
53                 switch ((ptr[vb->frame_offset + 4] >> 6) & 0x3) {
54                 case 0:
55                         return V4L2_BUF_FLAG_KEYFRAME;
56                 case 1:
57                         return V4L2_BUF_FLAG_PFRAME;
58                 case 2:
59                         return V4L2_BUF_FLAG_BFRAME;
60                 default:
61                         return 0;
62                 }
63         case V4L2_PIX_FMT_MPEG1:
64         case V4L2_PIX_FMT_MPEG2:
65                 switch ((ptr[vb->frame_offset + 5] >> 3) & 0x7) {
66                 case 1:
67                         return V4L2_BUF_FLAG_KEYFRAME;
68                 case 2:
69                         return V4L2_BUF_FLAG_PFRAME;
70                 case 3:
71                         return V4L2_BUF_FLAG_BFRAME;
72                 default:
73                         return 0;
74                 }
75         }
76
77         return 0;
78 }
79
80 static void get_resolution(struct go7007 *go, int *width, int *height)
81 {
82         switch (go->standard) {
83         case GO7007_STD_NTSC:
84                 *width = 720;
85                 *height = 480;
86                 break;
87         case GO7007_STD_PAL:
88                 *width = 720;
89                 *height = 576;
90                 break;
91         case GO7007_STD_OTHER:
92         default:
93                 *width = go->board_info->sensor_width;
94                 *height = go->board_info->sensor_height;
95                 break;
96         }
97 }
98
99 static void set_formatting(struct go7007 *go)
100 {
101         if (go->format == V4L2_PIX_FMT_MJPEG) {
102                 go->pali = 0;
103                 go->aspect_ratio = GO7007_RATIO_1_1;
104                 go->gop_size = 0;
105                 go->ipb = 0;
106                 go->closed_gop = 0;
107                 go->repeat_seqhead = 0;
108                 go->seq_header_enable = 0;
109                 go->gop_header_enable = 0;
110                 go->dvd_mode = 0;
111                 return;
112         }
113
114         switch (go->format) {
115         case V4L2_PIX_FMT_MPEG1:
116                 go->pali = 0;
117                 break;
118         default:
119         case V4L2_PIX_FMT_MPEG2:
120                 go->pali = 0x48;
121                 break;
122         case V4L2_PIX_FMT_MPEG4:
123                 /* For future reference: this is the list of MPEG4
124                  * profiles that are available, although they are
125                  * untested:
126                  *
127                  * Profile              pali
128                  * --------------       ----
129                  * PROFILE_S_L0         0x08
130                  * PROFILE_S_L1         0x01
131                  * PROFILE_S_L2         0x02
132                  * PROFILE_S_L3         0x03
133                  * PROFILE_ARTS_L1      0x91
134                  * PROFILE_ARTS_L2      0x92
135                  * PROFILE_ARTS_L3      0x93
136                  * PROFILE_ARTS_L4      0x94
137                  * PROFILE_AS_L0        0xf0
138                  * PROFILE_AS_L1        0xf1
139                  * PROFILE_AS_L2        0xf2
140                  * PROFILE_AS_L3        0xf3
141                  * PROFILE_AS_L4        0xf4
142                  * PROFILE_AS_L5        0xf5
143                  */
144                 go->pali = 0xf5;
145                 break;
146         }
147         go->gop_size = v4l2_ctrl_g_ctrl(go->mpeg_video_gop_size);
148         go->closed_gop = v4l2_ctrl_g_ctrl(go->mpeg_video_gop_closure);
149         go->ipb = v4l2_ctrl_g_ctrl(go->mpeg_video_b_frames) != 0;
150         go->bitrate = v4l2_ctrl_g_ctrl(go->mpeg_video_bitrate);
151         go->repeat_seqhead = v4l2_ctrl_g_ctrl(go->mpeg_video_rep_seqheader);
152         go->gop_header_enable = 1;
153         go->dvd_mode = 0;
154         if (go->format == V4L2_PIX_FMT_MPEG2)
155                 go->dvd_mode =
156                         go->bitrate == 9800000 &&
157                         go->gop_size == 15 &&
158                         go->ipb == 0 &&
159                         go->repeat_seqhead == 1 &&
160                         go->closed_gop;
161
162         switch (v4l2_ctrl_g_ctrl(go->mpeg_video_aspect_ratio)) {
163         default:
164         case V4L2_MPEG_VIDEO_ASPECT_1x1:
165                 go->aspect_ratio = GO7007_RATIO_1_1;
166                 break;
167         case V4L2_MPEG_VIDEO_ASPECT_4x3:
168                 go->aspect_ratio = GO7007_RATIO_4_3;
169                 break;
170         case V4L2_MPEG_VIDEO_ASPECT_16x9:
171                 go->aspect_ratio = GO7007_RATIO_16_9;
172                 break;
173         }
174 }
175
176 static int set_capture_size(struct go7007 *go, struct v4l2_format *fmt, int try)
177 {
178         int sensor_height = 0, sensor_width = 0;
179         int width, height;
180
181         if (fmt != NULL && !valid_pixelformat(fmt->fmt.pix.pixelformat))
182                 return -EINVAL;
183
184         get_resolution(go, &sensor_width, &sensor_height);
185
186         if (fmt == NULL) {
187                 width = sensor_width;
188                 height = sensor_height;
189         } else if (go->board_info->sensor_flags & GO7007_SENSOR_SCALING) {
190                 if (fmt->fmt.pix.width > sensor_width)
191                         width = sensor_width;
192                 else if (fmt->fmt.pix.width < 144)
193                         width = 144;
194                 else
195                         width = fmt->fmt.pix.width & ~0x0f;
196
197                 if (fmt->fmt.pix.height > sensor_height)
198                         height = sensor_height;
199                 else if (fmt->fmt.pix.height < 96)
200                         height = 96;
201                 else
202                         height = fmt->fmt.pix.height & ~0x0f;
203         } else {
204                 width = fmt->fmt.pix.width;
205
206                 if (width <= sensor_width / 4) {
207                         width = sensor_width / 4;
208                         height = sensor_height / 4;
209                 } else if (width <= sensor_width / 2) {
210                         width = sensor_width / 2;
211                         height = sensor_height / 2;
212                 } else {
213                         width = sensor_width;
214                         height = sensor_height;
215                 }
216                 width &= ~0xf;
217                 height &= ~0xf;
218         }
219
220         if (fmt != NULL) {
221                 u32 pixelformat = fmt->fmt.pix.pixelformat;
222
223                 memset(fmt, 0, sizeof(*fmt));
224                 fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
225                 fmt->fmt.pix.width = width;
226                 fmt->fmt.pix.height = height;
227                 fmt->fmt.pix.pixelformat = pixelformat;
228                 fmt->fmt.pix.field = V4L2_FIELD_NONE;
229                 fmt->fmt.pix.bytesperline = 0;
230                 fmt->fmt.pix.sizeimage = GO7007_BUF_SIZE;
231                 fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
232         }
233
234         if (try)
235                 return 0;
236
237         if (fmt)
238                 go->format = fmt->fmt.pix.pixelformat;
239         go->width = width;
240         go->height = height;
241         go->encoder_h_offset = go->board_info->sensor_h_offset;
242         go->encoder_v_offset = go->board_info->sensor_v_offset;
243
244         if (go->board_info->sensor_flags & GO7007_SENSOR_SCALING) {
245                 struct v4l2_subdev_format format = {
246                         .which = V4L2_SUBDEV_FORMAT_ACTIVE,
247                 };
248
249                 format.format.code = MEDIA_BUS_FMT_FIXED;
250                 format.format.width = fmt ? fmt->fmt.pix.width : width;
251                 format.format.height = height;
252                 go->encoder_h_halve = 0;
253                 go->encoder_v_halve = 0;
254                 go->encoder_subsample = 0;
255                 call_all(&go->v4l2_dev, pad, set_fmt, NULL, &format);
256         } else {
257                 if (width <= sensor_width / 4) {
258                         go->encoder_h_halve = 1;
259                         go->encoder_v_halve = 1;
260                         go->encoder_subsample = 1;
261                 } else if (width <= sensor_width / 2) {
262                         go->encoder_h_halve = 1;
263                         go->encoder_v_halve = 1;
264                         go->encoder_subsample = 0;
265                 } else {
266                         go->encoder_h_halve = 0;
267                         go->encoder_v_halve = 0;
268                         go->encoder_subsample = 0;
269                 }
270         }
271         return 0;
272 }
273
274 static int vidioc_querycap(struct file *file, void  *priv,
275                                         struct v4l2_capability *cap)
276 {
277         struct go7007 *go = video_drvdata(file);
278
279         strscpy(cap->driver, "go7007", sizeof(cap->driver));
280         strscpy(cap->card, go->name, sizeof(cap->card));
281         strscpy(cap->bus_info, go->bus_info, sizeof(cap->bus_info));
282         return 0;
283 }
284
285 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
286                                         struct v4l2_fmtdesc *fmt)
287 {
288         switch (fmt->index) {
289         case 0:
290                 fmt->pixelformat = V4L2_PIX_FMT_MJPEG;
291                 break;
292         case 1:
293                 fmt->pixelformat = V4L2_PIX_FMT_MPEG1;
294                 break;
295         case 2:
296                 fmt->pixelformat = V4L2_PIX_FMT_MPEG2;
297                 break;
298         case 3:
299                 fmt->pixelformat = V4L2_PIX_FMT_MPEG4;
300                 break;
301         default:
302                 return -EINVAL;
303         }
304         return 0;
305 }
306
307 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
308                                         struct v4l2_format *fmt)
309 {
310         struct go7007 *go = video_drvdata(file);
311
312         fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
313         fmt->fmt.pix.width = go->width;
314         fmt->fmt.pix.height = go->height;
315         fmt->fmt.pix.pixelformat = go->format;
316         fmt->fmt.pix.field = V4L2_FIELD_NONE;
317         fmt->fmt.pix.bytesperline = 0;
318         fmt->fmt.pix.sizeimage = GO7007_BUF_SIZE;
319         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
320
321         return 0;
322 }
323
324 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
325                         struct v4l2_format *fmt)
326 {
327         struct go7007 *go = video_drvdata(file);
328
329         return set_capture_size(go, fmt, 1);
330 }
331
332 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
333                         struct v4l2_format *fmt)
334 {
335         struct go7007 *go = video_drvdata(file);
336
337         if (vb2_is_busy(&go->vidq))
338                 return -EBUSY;
339
340         return set_capture_size(go, fmt, 0);
341 }
342
343 static int go7007_queue_setup(struct vb2_queue *q,
344                 unsigned int *num_buffers, unsigned int *num_planes,
345                 unsigned int sizes[], struct device *alloc_devs[])
346 {
347         sizes[0] = GO7007_BUF_SIZE;
348         *num_planes = 1;
349
350         if (*num_buffers < 2)
351                 *num_buffers = 2;
352
353         return 0;
354 }
355
356 static void go7007_buf_queue(struct vb2_buffer *vb)
357 {
358         struct vb2_queue *vq = vb->vb2_queue;
359         struct go7007 *go = vb2_get_drv_priv(vq);
360         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
361         struct go7007_buffer *go7007_vb =
362                 container_of(vbuf, struct go7007_buffer, vb);
363         unsigned long flags;
364
365         spin_lock_irqsave(&go->spinlock, flags);
366         list_add_tail(&go7007_vb->list, &go->vidq_active);
367         spin_unlock_irqrestore(&go->spinlock, flags);
368 }
369
370 static int go7007_buf_prepare(struct vb2_buffer *vb)
371 {
372         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
373         struct go7007_buffer *go7007_vb =
374                 container_of(vbuf, struct go7007_buffer, vb);
375
376         go7007_vb->modet_active = 0;
377         go7007_vb->frame_offset = 0;
378         vb->planes[0].bytesused = 0;
379         return 0;
380 }
381
382 static void go7007_buf_finish(struct vb2_buffer *vb)
383 {
384         struct vb2_queue *vq = vb->vb2_queue;
385         struct go7007 *go = vb2_get_drv_priv(vq);
386         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
387         struct go7007_buffer *go7007_vb =
388                 container_of(vbuf, struct go7007_buffer, vb);
389         u32 frame_type_flag = get_frame_type_flag(go7007_vb, go->format);
390
391         vbuf->flags &= ~(V4L2_BUF_FLAG_KEYFRAME | V4L2_BUF_FLAG_BFRAME |
392                         V4L2_BUF_FLAG_PFRAME);
393         vbuf->flags |= frame_type_flag;
394         vbuf->field = V4L2_FIELD_NONE;
395 }
396
397 static int go7007_start_streaming(struct vb2_queue *q, unsigned int count)
398 {
399         struct go7007 *go = vb2_get_drv_priv(q);
400         int ret;
401
402         set_formatting(go);
403         mutex_lock(&go->hw_lock);
404         go->next_seq = 0;
405         go->active_buf = NULL;
406         go->modet_event_status = 0;
407         if (go7007_start_encoder(go) < 0)
408                 ret = -EIO;
409         else
410                 ret = 0;
411         mutex_unlock(&go->hw_lock);
412         if (ret)
413                 return ret;
414         call_all(&go->v4l2_dev, video, s_stream, 1);
415         v4l2_ctrl_grab(go->mpeg_video_gop_size, true);
416         v4l2_ctrl_grab(go->mpeg_video_gop_closure, true);
417         v4l2_ctrl_grab(go->mpeg_video_bitrate, true);
418         v4l2_ctrl_grab(go->mpeg_video_aspect_ratio, true);
419         /* Turn on Capture LED */
420         if (go->board_id == GO7007_BOARDID_ADS_USBAV_709)
421                 go7007_write_addr(go, 0x3c82, 0x0005);
422         return ret;
423 }
424
425 static void go7007_stop_streaming(struct vb2_queue *q)
426 {
427         struct go7007 *go = vb2_get_drv_priv(q);
428         unsigned long flags;
429
430         go7007_stream_stop(go);
431         mutex_lock(&go->hw_lock);
432         go7007_reset_encoder(go);
433         mutex_unlock(&go->hw_lock);
434         call_all(&go->v4l2_dev, video, s_stream, 0);
435
436         spin_lock_irqsave(&go->spinlock, flags);
437         INIT_LIST_HEAD(&go->vidq_active);
438         spin_unlock_irqrestore(&go->spinlock, flags);
439         v4l2_ctrl_grab(go->mpeg_video_gop_size, false);
440         v4l2_ctrl_grab(go->mpeg_video_gop_closure, false);
441         v4l2_ctrl_grab(go->mpeg_video_bitrate, false);
442         v4l2_ctrl_grab(go->mpeg_video_aspect_ratio, false);
443         /* Turn on Capture LED */
444         if (go->board_id == GO7007_BOARDID_ADS_USBAV_709)
445                 go7007_write_addr(go, 0x3c82, 0x000d);
446 }
447
448 static const struct vb2_ops go7007_video_qops = {
449         .queue_setup    = go7007_queue_setup,
450         .buf_queue      = go7007_buf_queue,
451         .buf_prepare    = go7007_buf_prepare,
452         .buf_finish     = go7007_buf_finish,
453         .start_streaming = go7007_start_streaming,
454         .stop_streaming = go7007_stop_streaming,
455         .wait_prepare   = vb2_ops_wait_prepare,
456         .wait_finish    = vb2_ops_wait_finish,
457 };
458
459 static int vidioc_g_parm(struct file *filp, void *priv,
460                 struct v4l2_streamparm *parm)
461 {
462         struct go7007 *go = video_drvdata(filp);
463         struct v4l2_fract timeperframe = {
464                 .numerator = 1001 *  go->fps_scale,
465                 .denominator = go->sensor_framerate,
466         };
467
468         if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
469                 return -EINVAL;
470
471         parm->parm.capture.readbuffers = 2;
472         parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
473         parm->parm.capture.timeperframe = timeperframe;
474
475         return 0;
476 }
477
478 static int vidioc_s_parm(struct file *filp, void *priv,
479                 struct v4l2_streamparm *parm)
480 {
481         struct go7007 *go = video_drvdata(filp);
482         unsigned int n, d;
483
484         if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
485                 return -EINVAL;
486
487         n = go->sensor_framerate *
488                 parm->parm.capture.timeperframe.numerator;
489         d = 1001 * parm->parm.capture.timeperframe.denominator;
490         if (n != 0 && d != 0 && n > d)
491                 go->fps_scale = (n + d/2) / d;
492         else
493                 go->fps_scale = 1;
494
495         return vidioc_g_parm(filp, priv, parm);
496 }
497
498 /* VIDIOC_ENUMSTD on go7007 were used for enumerating the supported fps and
499    its resolution, when the device is not connected to TV.
500    This is were an API abuse, probably used by the lack of specific IOCTL's to
501    enumerate it, by the time the driver was written.
502
503    However, since kernel 2.6.19, two new ioctls (VIDIOC_ENUM_FRAMEINTERVALS
504    and VIDIOC_ENUM_FRAMESIZES) were added for this purpose.
505
506    The two functions below implement the newer ioctls
507 */
508 static int vidioc_enum_framesizes(struct file *filp, void *priv,
509                                   struct v4l2_frmsizeenum *fsize)
510 {
511         struct go7007 *go = video_drvdata(filp);
512         int width, height;
513
514         if (fsize->index > 2)
515                 return -EINVAL;
516
517         if (!valid_pixelformat(fsize->pixel_format))
518                 return -EINVAL;
519
520         get_resolution(go, &width, &height);
521         fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
522         fsize->discrete.width = (width >> fsize->index) & ~0xf;
523         fsize->discrete.height = (height >> fsize->index) & ~0xf;
524         return 0;
525 }
526
527 static int vidioc_enum_frameintervals(struct file *filp, void *priv,
528                                       struct v4l2_frmivalenum *fival)
529 {
530         struct go7007 *go = video_drvdata(filp);
531         int width, height;
532         int i;
533
534         if (fival->index > 4)
535                 return -EINVAL;
536
537         if (!valid_pixelformat(fival->pixel_format))
538                 return -EINVAL;
539
540         if (!(go->board_info->sensor_flags & GO7007_SENSOR_SCALING)) {
541                 get_resolution(go, &width, &height);
542                 for (i = 0; i <= 2; i++)
543                         if (fival->width == ((width >> i) & ~0xf) &&
544                             fival->height == ((height >> i) & ~0xf))
545                                 break;
546                 if (i > 2)
547                         return -EINVAL;
548         }
549         fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
550         fival->discrete.numerator = 1001 * (fival->index + 1);
551         fival->discrete.denominator = go->sensor_framerate;
552         return 0;
553 }
554
555 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *std)
556 {
557         struct go7007 *go = video_drvdata(file);
558
559         *std = go->std;
560         return 0;
561 }
562
563 static int go7007_s_std(struct go7007 *go)
564 {
565         if (go->std & V4L2_STD_625_50) {
566                 go->standard = GO7007_STD_PAL;
567                 go->sensor_framerate = 25025;
568         } else {
569                 go->standard = GO7007_STD_NTSC;
570                 go->sensor_framerate = 30000;
571         }
572
573         call_all(&go->v4l2_dev, video, s_std, go->std);
574         set_capture_size(go, NULL, 0);
575         return 0;
576 }
577
578 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id std)
579 {
580         struct go7007 *go = video_drvdata(file);
581
582         if (vb2_is_busy(&go->vidq))
583                 return -EBUSY;
584
585         go->std = std;
586
587         return go7007_s_std(go);
588 }
589
590 static int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *std)
591 {
592         struct go7007 *go = video_drvdata(file);
593
594         return call_all(&go->v4l2_dev, video, querystd, std);
595 }
596
597 static int vidioc_enum_input(struct file *file, void *priv,
598                                 struct v4l2_input *inp)
599 {
600         struct go7007 *go = video_drvdata(file);
601
602         if (inp->index >= go->board_info->num_inputs)
603                 return -EINVAL;
604
605         strscpy(inp->name, go->board_info->inputs[inp->index].name,
606                 sizeof(inp->name));
607
608         /* If this board has a tuner, it will be the first input */
609         if ((go->board_info->flags & GO7007_BOARD_HAS_TUNER) &&
610                         inp->index == 0)
611                 inp->type = V4L2_INPUT_TYPE_TUNER;
612         else
613                 inp->type = V4L2_INPUT_TYPE_CAMERA;
614
615         if (go->board_info->num_aud_inputs)
616                 inp->audioset = (1 << go->board_info->num_aud_inputs) - 1;
617         else
618                 inp->audioset = 0;
619         inp->tuner = 0;
620         if (go->board_info->sensor_flags & GO7007_SENSOR_TV)
621                 inp->std = video_devdata(file)->tvnorms;
622         else
623                 inp->std = 0;
624
625         return 0;
626 }
627
628
629 static int vidioc_g_input(struct file *file, void *priv, unsigned int *input)
630 {
631         struct go7007 *go = video_drvdata(file);
632
633         *input = go->input;
634
635         return 0;
636 }
637
638 static int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *a)
639 {
640         struct go7007 *go = video_drvdata(file);
641
642         if (a->index >= go->board_info->num_aud_inputs)
643                 return -EINVAL;
644         strscpy(a->name, go->board_info->aud_inputs[a->index].name,
645                 sizeof(a->name));
646         a->capability = V4L2_AUDCAP_STEREO;
647         return 0;
648 }
649
650 static int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *a)
651 {
652         struct go7007 *go = video_drvdata(file);
653
654         a->index = go->aud_input;
655         strscpy(a->name, go->board_info->aud_inputs[go->aud_input].name,
656                 sizeof(a->name));
657         a->capability = V4L2_AUDCAP_STEREO;
658         return 0;
659 }
660
661 static int vidioc_s_audio(struct file *file, void *fh,
662         const struct v4l2_audio *a)
663 {
664         struct go7007 *go = video_drvdata(file);
665
666         if (a->index >= go->board_info->num_aud_inputs)
667                 return -EINVAL;
668         go->aud_input = a->index;
669         v4l2_subdev_call(go->sd_audio, audio, s_routing,
670                 go->board_info->aud_inputs[go->aud_input].audio_input, 0, 0);
671         return 0;
672 }
673
674 static void go7007_s_input(struct go7007 *go)
675 {
676         unsigned int input = go->input;
677
678         v4l2_subdev_call(go->sd_video, video, s_routing,
679                         go->board_info->inputs[input].video_input, 0,
680                         go->board_info->video_config);
681         if (go->board_info->num_aud_inputs) {
682                 int aud_input = go->board_info->inputs[input].audio_index;
683
684                 v4l2_subdev_call(go->sd_audio, audio, s_routing,
685                         go->board_info->aud_inputs[aud_input].audio_input, 0, 0);
686                 go->aud_input = aud_input;
687         }
688 }
689
690 static int vidioc_s_input(struct file *file, void *priv, unsigned int input)
691 {
692         struct go7007 *go = video_drvdata(file);
693
694         if (input >= go->board_info->num_inputs)
695                 return -EINVAL;
696         if (vb2_is_busy(&go->vidq))
697                 return -EBUSY;
698
699         go->input = input;
700         go7007_s_input(go);
701
702         return 0;
703 }
704
705 static int vidioc_g_tuner(struct file *file, void *priv,
706                                 struct v4l2_tuner *t)
707 {
708         struct go7007 *go = video_drvdata(file);
709
710         if (t->index != 0)
711                 return -EINVAL;
712
713         strscpy(t->name, "Tuner", sizeof(t->name));
714         return call_all(&go->v4l2_dev, tuner, g_tuner, t);
715 }
716
717 static int vidioc_s_tuner(struct file *file, void *priv,
718                                 const struct v4l2_tuner *t)
719 {
720         struct go7007 *go = video_drvdata(file);
721
722         if (t->index != 0)
723                 return -EINVAL;
724
725         return call_all(&go->v4l2_dev, tuner, s_tuner, t);
726 }
727
728 static int vidioc_g_frequency(struct file *file, void *priv,
729                                 struct v4l2_frequency *f)
730 {
731         struct go7007 *go = video_drvdata(file);
732
733         if (f->tuner)
734                 return -EINVAL;
735
736         return call_all(&go->v4l2_dev, tuner, g_frequency, f);
737 }
738
739 static int vidioc_s_frequency(struct file *file, void *priv,
740                                 const struct v4l2_frequency *f)
741 {
742         struct go7007 *go = video_drvdata(file);
743
744         if (f->tuner)
745                 return -EINVAL;
746
747         return call_all(&go->v4l2_dev, tuner, s_frequency, f);
748 }
749
750 static int vidioc_log_status(struct file *file, void *priv)
751 {
752         struct go7007 *go = video_drvdata(file);
753
754         v4l2_ctrl_log_status(file, priv);
755         return call_all(&go->v4l2_dev, core, log_status);
756 }
757
758 static int vidioc_subscribe_event(struct v4l2_fh *fh,
759                                 const struct v4l2_event_subscription *sub)
760 {
761
762         switch (sub->type) {
763         case V4L2_EVENT_MOTION_DET:
764                 /* Allow for up to 30 events (1 second for NTSC) to be
765                  * stored. */
766                 return v4l2_event_subscribe(fh, sub, 30, NULL);
767         default:
768                 return v4l2_ctrl_subscribe_event(fh, sub);
769         }
770 }
771
772
773 static int go7007_s_ctrl(struct v4l2_ctrl *ctrl)
774 {
775         struct go7007 *go =
776                 container_of(ctrl->handler, struct go7007, hdl);
777         unsigned y;
778         u8 *mt;
779
780         switch (ctrl->id) {
781         case V4L2_CID_PIXEL_THRESHOLD0:
782                 go->modet[0].pixel_threshold = ctrl->val;
783                 break;
784         case V4L2_CID_MOTION_THRESHOLD0:
785                 go->modet[0].motion_threshold = ctrl->val;
786                 break;
787         case V4L2_CID_MB_THRESHOLD0:
788                 go->modet[0].mb_threshold = ctrl->val;
789                 break;
790         case V4L2_CID_PIXEL_THRESHOLD1:
791                 go->modet[1].pixel_threshold = ctrl->val;
792                 break;
793         case V4L2_CID_MOTION_THRESHOLD1:
794                 go->modet[1].motion_threshold = ctrl->val;
795                 break;
796         case V4L2_CID_MB_THRESHOLD1:
797                 go->modet[1].mb_threshold = ctrl->val;
798                 break;
799         case V4L2_CID_PIXEL_THRESHOLD2:
800                 go->modet[2].pixel_threshold = ctrl->val;
801                 break;
802         case V4L2_CID_MOTION_THRESHOLD2:
803                 go->modet[2].motion_threshold = ctrl->val;
804                 break;
805         case V4L2_CID_MB_THRESHOLD2:
806                 go->modet[2].mb_threshold = ctrl->val;
807                 break;
808         case V4L2_CID_PIXEL_THRESHOLD3:
809                 go->modet[3].pixel_threshold = ctrl->val;
810                 break;
811         case V4L2_CID_MOTION_THRESHOLD3:
812                 go->modet[3].motion_threshold = ctrl->val;
813                 break;
814         case V4L2_CID_MB_THRESHOLD3:
815                 go->modet[3].mb_threshold = ctrl->val;
816                 break;
817         case V4L2_CID_DETECT_MD_REGION_GRID:
818                 mt = go->modet_map;
819                 for (y = 0; y < go->height / 16; y++, mt += go->width / 16)
820                         memcpy(mt, ctrl->p_new.p_u8 + y * (720 / 16), go->width / 16);
821                 break;
822         default:
823                 return -EINVAL;
824         }
825         return 0;
826 }
827
828 static const struct v4l2_file_operations go7007_fops = {
829         .owner          = THIS_MODULE,
830         .open           = v4l2_fh_open,
831         .release        = vb2_fop_release,
832         .unlocked_ioctl = video_ioctl2,
833         .read           = vb2_fop_read,
834         .mmap           = vb2_fop_mmap,
835         .poll           = vb2_fop_poll,
836 };
837
838 static const struct v4l2_ioctl_ops video_ioctl_ops = {
839         .vidioc_querycap          = vidioc_querycap,
840         .vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
841         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
842         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
843         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
844         .vidioc_reqbufs           = vb2_ioctl_reqbufs,
845         .vidioc_querybuf          = vb2_ioctl_querybuf,
846         .vidioc_qbuf              = vb2_ioctl_qbuf,
847         .vidioc_dqbuf             = vb2_ioctl_dqbuf,
848         .vidioc_g_std             = vidioc_g_std,
849         .vidioc_s_std             = vidioc_s_std,
850         .vidioc_querystd          = vidioc_querystd,
851         .vidioc_enum_input        = vidioc_enum_input,
852         .vidioc_g_input           = vidioc_g_input,
853         .vidioc_s_input           = vidioc_s_input,
854         .vidioc_enumaudio         = vidioc_enumaudio,
855         .vidioc_g_audio           = vidioc_g_audio,
856         .vidioc_s_audio           = vidioc_s_audio,
857         .vidioc_streamon          = vb2_ioctl_streamon,
858         .vidioc_streamoff         = vb2_ioctl_streamoff,
859         .vidioc_g_tuner           = vidioc_g_tuner,
860         .vidioc_s_tuner           = vidioc_s_tuner,
861         .vidioc_g_frequency       = vidioc_g_frequency,
862         .vidioc_s_frequency       = vidioc_s_frequency,
863         .vidioc_g_parm            = vidioc_g_parm,
864         .vidioc_s_parm            = vidioc_s_parm,
865         .vidioc_enum_framesizes   = vidioc_enum_framesizes,
866         .vidioc_enum_frameintervals = vidioc_enum_frameintervals,
867         .vidioc_log_status        = vidioc_log_status,
868         .vidioc_subscribe_event   = vidioc_subscribe_event,
869         .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
870 };
871
872 static const struct video_device go7007_template = {
873         .name           = "go7007",
874         .fops           = &go7007_fops,
875         .release        = video_device_release_empty,
876         .ioctl_ops      = &video_ioctl_ops,
877         .tvnorms        = V4L2_STD_ALL,
878 };
879
880 static const struct v4l2_ctrl_ops go7007_ctrl_ops = {
881         .s_ctrl = go7007_s_ctrl,
882 };
883
884 static const struct v4l2_ctrl_config go7007_pixel_threshold0_ctrl = {
885         .ops = &go7007_ctrl_ops,
886         .id = V4L2_CID_PIXEL_THRESHOLD0,
887         .name = "Pixel Threshold Region 0",
888         .type = V4L2_CTRL_TYPE_INTEGER,
889         .def = 20,
890         .max = 32767,
891         .step = 1,
892 };
893
894 static const struct v4l2_ctrl_config go7007_motion_threshold0_ctrl = {
895         .ops = &go7007_ctrl_ops,
896         .id = V4L2_CID_MOTION_THRESHOLD0,
897         .name = "Motion Threshold Region 0",
898         .type = V4L2_CTRL_TYPE_INTEGER,
899         .def = 80,
900         .max = 32767,
901         .step = 1,
902 };
903
904 static const struct v4l2_ctrl_config go7007_mb_threshold0_ctrl = {
905         .ops = &go7007_ctrl_ops,
906         .id = V4L2_CID_MB_THRESHOLD0,
907         .name = "MB Threshold Region 0",
908         .type = V4L2_CTRL_TYPE_INTEGER,
909         .def = 200,
910         .max = 32767,
911         .step = 1,
912 };
913
914 static const struct v4l2_ctrl_config go7007_pixel_threshold1_ctrl = {
915         .ops = &go7007_ctrl_ops,
916         .id = V4L2_CID_PIXEL_THRESHOLD1,
917         .name = "Pixel Threshold Region 1",
918         .type = V4L2_CTRL_TYPE_INTEGER,
919         .def = 20,
920         .max = 32767,
921         .step = 1,
922 };
923
924 static const struct v4l2_ctrl_config go7007_motion_threshold1_ctrl = {
925         .ops = &go7007_ctrl_ops,
926         .id = V4L2_CID_MOTION_THRESHOLD1,
927         .name = "Motion Threshold Region 1",
928         .type = V4L2_CTRL_TYPE_INTEGER,
929         .def = 80,
930         .max = 32767,
931         .step = 1,
932 };
933
934 static const struct v4l2_ctrl_config go7007_mb_threshold1_ctrl = {
935         .ops = &go7007_ctrl_ops,
936         .id = V4L2_CID_MB_THRESHOLD1,
937         .name = "MB Threshold Region 1",
938         .type = V4L2_CTRL_TYPE_INTEGER,
939         .def = 200,
940         .max = 32767,
941         .step = 1,
942 };
943
944 static const struct v4l2_ctrl_config go7007_pixel_threshold2_ctrl = {
945         .ops = &go7007_ctrl_ops,
946         .id = V4L2_CID_PIXEL_THRESHOLD2,
947         .name = "Pixel Threshold Region 2",
948         .type = V4L2_CTRL_TYPE_INTEGER,
949         .def = 20,
950         .max = 32767,
951         .step = 1,
952 };
953
954 static const struct v4l2_ctrl_config go7007_motion_threshold2_ctrl = {
955         .ops = &go7007_ctrl_ops,
956         .id = V4L2_CID_MOTION_THRESHOLD2,
957         .name = "Motion Threshold Region 2",
958         .type = V4L2_CTRL_TYPE_INTEGER,
959         .def = 80,
960         .max = 32767,
961         .step = 1,
962 };
963
964 static const struct v4l2_ctrl_config go7007_mb_threshold2_ctrl = {
965         .ops = &go7007_ctrl_ops,
966         .id = V4L2_CID_MB_THRESHOLD2,
967         .name = "MB Threshold Region 2",
968         .type = V4L2_CTRL_TYPE_INTEGER,
969         .def = 200,
970         .max = 32767,
971         .step = 1,
972 };
973
974 static const struct v4l2_ctrl_config go7007_pixel_threshold3_ctrl = {
975         .ops = &go7007_ctrl_ops,
976         .id = V4L2_CID_PIXEL_THRESHOLD3,
977         .name = "Pixel Threshold Region 3",
978         .type = V4L2_CTRL_TYPE_INTEGER,
979         .def = 20,
980         .max = 32767,
981         .step = 1,
982 };
983
984 static const struct v4l2_ctrl_config go7007_motion_threshold3_ctrl = {
985         .ops = &go7007_ctrl_ops,
986         .id = V4L2_CID_MOTION_THRESHOLD3,
987         .name = "Motion Threshold Region 3",
988         .type = V4L2_CTRL_TYPE_INTEGER,
989         .def = 80,
990         .max = 32767,
991         .step = 1,
992 };
993
994 static const struct v4l2_ctrl_config go7007_mb_threshold3_ctrl = {
995         .ops = &go7007_ctrl_ops,
996         .id = V4L2_CID_MB_THRESHOLD3,
997         .name = "MB Threshold Region 3",
998         .type = V4L2_CTRL_TYPE_INTEGER,
999         .def = 200,
1000         .max = 32767,
1001         .step = 1,
1002 };
1003
1004 static const struct v4l2_ctrl_config go7007_mb_regions_ctrl = {
1005         .ops = &go7007_ctrl_ops,
1006         .id = V4L2_CID_DETECT_MD_REGION_GRID,
1007         .dims = { 576 / 16, 720 / 16 },
1008         .max = 3,
1009         .step = 1,
1010 };
1011
1012 int go7007_v4l2_ctrl_init(struct go7007 *go)
1013 {
1014         struct v4l2_ctrl_handler *hdl = &go->hdl;
1015         struct v4l2_ctrl *ctrl;
1016
1017         v4l2_ctrl_handler_init(hdl, 22);
1018         go->mpeg_video_gop_size = v4l2_ctrl_new_std(hdl, NULL,
1019                         V4L2_CID_MPEG_VIDEO_GOP_SIZE, 0, 34, 1, 15);
1020         go->mpeg_video_gop_closure = v4l2_ctrl_new_std(hdl, NULL,
1021                         V4L2_CID_MPEG_VIDEO_GOP_CLOSURE, 0, 1, 1, 1);
1022         go->mpeg_video_bitrate = v4l2_ctrl_new_std(hdl, NULL,
1023                         V4L2_CID_MPEG_VIDEO_BITRATE,
1024                         64000, 10000000, 1, 9800000);
1025         go->mpeg_video_b_frames = v4l2_ctrl_new_std(hdl, NULL,
1026                         V4L2_CID_MPEG_VIDEO_B_FRAMES, 0, 2, 2, 0);
1027         go->mpeg_video_rep_seqheader = v4l2_ctrl_new_std(hdl, NULL,
1028                         V4L2_CID_MPEG_VIDEO_REPEAT_SEQ_HEADER, 0, 1, 1, 1);
1029
1030         go->mpeg_video_aspect_ratio = v4l2_ctrl_new_std_menu(hdl, NULL,
1031                         V4L2_CID_MPEG_VIDEO_ASPECT,
1032                         V4L2_MPEG_VIDEO_ASPECT_16x9, 0,
1033                         V4L2_MPEG_VIDEO_ASPECT_1x1);
1034         ctrl = v4l2_ctrl_new_std(hdl, NULL,
1035                         V4L2_CID_JPEG_ACTIVE_MARKER, 0,
1036                         V4L2_JPEG_ACTIVE_MARKER_DQT |
1037                         V4L2_JPEG_ACTIVE_MARKER_DHT, 0,
1038                         V4L2_JPEG_ACTIVE_MARKER_DQT |
1039                         V4L2_JPEG_ACTIVE_MARKER_DHT);
1040         if (ctrl)
1041                 ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
1042         v4l2_ctrl_new_custom(hdl, &go7007_pixel_threshold0_ctrl, NULL);
1043         v4l2_ctrl_new_custom(hdl, &go7007_motion_threshold0_ctrl, NULL);
1044         v4l2_ctrl_new_custom(hdl, &go7007_mb_threshold0_ctrl, NULL);
1045         v4l2_ctrl_new_custom(hdl, &go7007_pixel_threshold1_ctrl, NULL);
1046         v4l2_ctrl_new_custom(hdl, &go7007_motion_threshold1_ctrl, NULL);
1047         v4l2_ctrl_new_custom(hdl, &go7007_mb_threshold1_ctrl, NULL);
1048         v4l2_ctrl_new_custom(hdl, &go7007_pixel_threshold2_ctrl, NULL);
1049         v4l2_ctrl_new_custom(hdl, &go7007_motion_threshold2_ctrl, NULL);
1050         v4l2_ctrl_new_custom(hdl, &go7007_mb_threshold2_ctrl, NULL);
1051         v4l2_ctrl_new_custom(hdl, &go7007_pixel_threshold3_ctrl, NULL);
1052         v4l2_ctrl_new_custom(hdl, &go7007_motion_threshold3_ctrl, NULL);
1053         v4l2_ctrl_new_custom(hdl, &go7007_mb_threshold3_ctrl, NULL);
1054         v4l2_ctrl_new_custom(hdl, &go7007_mb_regions_ctrl, NULL);
1055         go->modet_mode = v4l2_ctrl_new_std_menu(hdl, NULL,
1056                         V4L2_CID_DETECT_MD_MODE,
1057                         V4L2_DETECT_MD_MODE_REGION_GRID,
1058                         1 << V4L2_DETECT_MD_MODE_THRESHOLD_GRID,
1059                         V4L2_DETECT_MD_MODE_DISABLED);
1060         if (hdl->error) {
1061                 int rv = hdl->error;
1062
1063                 v4l2_err(&go->v4l2_dev, "Could not register controls\n");
1064                 return rv;
1065         }
1066         go->v4l2_dev.ctrl_handler = hdl;
1067         return 0;
1068 }
1069
1070 int go7007_v4l2_init(struct go7007 *go)
1071 {
1072         struct video_device *vdev = &go->vdev;
1073         int rv;
1074
1075         mutex_init(&go->serialize_lock);
1076         mutex_init(&go->queue_lock);
1077
1078         INIT_LIST_HEAD(&go->vidq_active);
1079         go->vidq.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1080         go->vidq.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
1081         go->vidq.ops = &go7007_video_qops;
1082         go->vidq.mem_ops = &vb2_vmalloc_memops;
1083         go->vidq.drv_priv = go;
1084         go->vidq.buf_struct_size = sizeof(struct go7007_buffer);
1085         go->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1086         go->vidq.lock = &go->queue_lock;
1087         rv = vb2_queue_init(&go->vidq);
1088         if (rv)
1089                 return rv;
1090         *vdev = go7007_template;
1091         vdev->lock = &go->serialize_lock;
1092         vdev->queue = &go->vidq;
1093         vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE |
1094                             V4L2_CAP_STREAMING;
1095         if (go->board_info->num_aud_inputs)
1096                 vdev->device_caps |= V4L2_CAP_AUDIO;
1097         if (go->board_info->flags & GO7007_BOARD_HAS_TUNER)
1098                 vdev->device_caps |= V4L2_CAP_TUNER;
1099         video_set_drvdata(vdev, go);
1100         vdev->v4l2_dev = &go->v4l2_dev;
1101         if (!v4l2_device_has_op(&go->v4l2_dev, 0, video, querystd))
1102                 v4l2_disable_ioctl(vdev, VIDIOC_QUERYSTD);
1103         if (!(go->board_info->flags & GO7007_BOARD_HAS_TUNER)) {
1104                 v4l2_disable_ioctl(vdev, VIDIOC_S_FREQUENCY);
1105                 v4l2_disable_ioctl(vdev, VIDIOC_G_FREQUENCY);
1106                 v4l2_disable_ioctl(vdev, VIDIOC_S_TUNER);
1107                 v4l2_disable_ioctl(vdev, VIDIOC_G_TUNER);
1108         } else {
1109                 struct v4l2_frequency f = {
1110                         .type = V4L2_TUNER_ANALOG_TV,
1111                         .frequency = 980,
1112                 };
1113
1114                 call_all(&go->v4l2_dev, tuner, s_frequency, &f);
1115         }
1116         if (!(go->board_info->sensor_flags & GO7007_SENSOR_TV)) {
1117                 v4l2_disable_ioctl(vdev, VIDIOC_G_STD);
1118                 v4l2_disable_ioctl(vdev, VIDIOC_S_STD);
1119                 vdev->tvnorms = 0;
1120         }
1121         if (go->board_info->sensor_flags & GO7007_SENSOR_SCALING)
1122                 v4l2_disable_ioctl(vdev, VIDIOC_ENUM_FRAMESIZES);
1123         if (go->board_info->num_aud_inputs == 0) {
1124                 v4l2_disable_ioctl(vdev, VIDIOC_G_AUDIO);
1125                 v4l2_disable_ioctl(vdev, VIDIOC_S_AUDIO);
1126                 v4l2_disable_ioctl(vdev, VIDIOC_ENUMAUDIO);
1127         }
1128         /* Setup correct crystal frequency on this board */
1129         if (go->board_info->sensor_flags & GO7007_SENSOR_SAA7115)
1130                 v4l2_subdev_call(go->sd_video, video, s_crystal_freq,
1131                                 SAA7115_FREQ_24_576_MHZ,
1132                                 SAA7115_FREQ_FL_APLL | SAA7115_FREQ_FL_UCGC |
1133                                 SAA7115_FREQ_FL_DOUBLE_ASCLK);
1134         go7007_s_input(go);
1135         if (go->board_info->sensor_flags & GO7007_SENSOR_TV)
1136                 go7007_s_std(go);
1137         rv = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
1138         if (rv < 0)
1139                 return rv;
1140         dev_info(go->dev, "registered device %s [v4l2]\n",
1141                  video_device_node_name(vdev));
1142
1143         return 0;
1144 }
1145
1146 void go7007_v4l2_remove(struct go7007 *go)
1147 {
1148         v4l2_ctrl_handler_free(&go->hdl);
1149 }