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20#include <linux/init.h>
21#include <linux/list.h>
22#include <linux/module.h>
23#include <linux/kernel.h>
24#include <linux/delay.h>
25
26#include "saa7134-reg.h"
27#include "saa7134.h"
28
29#include <media/saa6752hs.h>
30#include <media/v4l2-common.h>
31
32
33
34MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
35MODULE_LICENSE("GPL");
36
37static unsigned int empress_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
38
39module_param_array(empress_nr, int, NULL, 0444);
40MODULE_PARM_DESC(empress_nr,"ts device number");
41
42static unsigned int debug;
43module_param(debug, int, 0644);
44MODULE_PARM_DESC(debug,"enable debug messages");
45
46#define dprintk(fmt, arg...) if (debug) \
47 printk(KERN_DEBUG "%s/empress: " fmt, dev->name , ## arg)
48
49
50
51static void ts_reset_encoder(struct saa7134_dev* dev)
52{
53 if (!dev->empress_started)
54 return;
55
56 saa_writeb(SAA7134_SPECIAL_MODE, 0x00);
57 msleep(10);
58 saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
59 msleep(100);
60 dev->empress_started = 0;
61}
62
63static int ts_init_encoder(struct saa7134_dev* dev)
64{
65 u32 leading_null_bytes = 0;
66
67
68
69 switch (dev->board) {
70 case SAA7134_BOARD_BEHOLD_M6:
71 case SAA7134_BOARD_BEHOLD_M63:
72 case SAA7134_BOARD_BEHOLD_M6_EXTRA:
73 leading_null_bytes = 1;
74 break;
75 }
76 ts_reset_encoder(dev);
77 saa_call_all(dev, core, init, leading_null_bytes);
78 dev->empress_started = 1;
79 return 0;
80}
81
82
83
84static int ts_open(struct file *file)
85{
86 struct video_device *vdev = video_devdata(file);
87 struct saa7134_dev *dev = video_drvdata(file);
88 int err;
89
90 dprintk("open dev=%s\n", video_device_node_name(vdev));
91 err = -EBUSY;
92 if (!mutex_trylock(&dev->empress_tsq.vb_lock))
93 return err;
94 if (atomic_read(&dev->empress_users))
95 goto done;
96
97
98 saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
99 saa_readb(SAA7134_AUDIO_MUTE_CTRL) & ~(1 << 6));
100
101 atomic_inc(&dev->empress_users);
102 file->private_data = dev;
103 err = 0;
104
105done:
106 mutex_unlock(&dev->empress_tsq.vb_lock);
107 return err;
108}
109
110static int ts_release(struct file *file)
111{
112 struct saa7134_dev *dev = file->private_data;
113
114 videobuf_stop(&dev->empress_tsq);
115 videobuf_mmap_free(&dev->empress_tsq);
116
117
118 ts_reset_encoder(dev);
119
120
121 saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
122 saa_readb(SAA7134_AUDIO_MUTE_CTRL) | (1 << 6));
123
124 atomic_dec(&dev->empress_users);
125
126 return 0;
127}
128
129static ssize_t
130ts_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
131{
132 struct saa7134_dev *dev = file->private_data;
133
134 if (!dev->empress_started)
135 ts_init_encoder(dev);
136
137 return videobuf_read_stream(&dev->empress_tsq,
138 data, count, ppos, 0,
139 file->f_flags & O_NONBLOCK);
140}
141
142static unsigned int
143ts_poll(struct file *file, struct poll_table_struct *wait)
144{
145 struct saa7134_dev *dev = file->private_data;
146
147 return videobuf_poll_stream(file, &dev->empress_tsq, wait);
148}
149
150
151static int
152ts_mmap(struct file *file, struct vm_area_struct * vma)
153{
154 struct saa7134_dev *dev = file->private_data;
155
156 return videobuf_mmap_mapper(&dev->empress_tsq, vma);
157}
158
159
160
161
162
163
164
165static int empress_querycap(struct file *file, void *priv,
166 struct v4l2_capability *cap)
167{
168 struct saa7134_dev *dev = file->private_data;
169
170 strcpy(cap->driver, "saa7134");
171 strlcpy(cap->card, saa7134_boards[dev->board].name,
172 sizeof(cap->card));
173 sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
174 cap->capabilities =
175 V4L2_CAP_VIDEO_CAPTURE |
176 V4L2_CAP_READWRITE |
177 V4L2_CAP_STREAMING;
178 return 0;
179}
180
181static int empress_enum_input(struct file *file, void *priv,
182 struct v4l2_input *i)
183{
184 if (i->index != 0)
185 return -EINVAL;
186
187 i->type = V4L2_INPUT_TYPE_CAMERA;
188 strcpy(i->name, "CCIR656");
189
190 return 0;
191}
192
193static int empress_g_input(struct file *file, void *priv, unsigned int *i)
194{
195 *i = 0;
196 return 0;
197}
198
199static int empress_s_input(struct file *file, void *priv, unsigned int i)
200{
201 if (i != 0)
202 return -EINVAL;
203
204 return 0;
205}
206
207static int empress_enum_fmt_vid_cap(struct file *file, void *priv,
208 struct v4l2_fmtdesc *f)
209{
210 if (f->index != 0)
211 return -EINVAL;
212
213 strlcpy(f->description, "MPEG TS", sizeof(f->description));
214 f->pixelformat = V4L2_PIX_FMT_MPEG;
215 f->flags = V4L2_FMT_FLAG_COMPRESSED;
216 return 0;
217}
218
219static int empress_g_fmt_vid_cap(struct file *file, void *priv,
220 struct v4l2_format *f)
221{
222 struct saa7134_dev *dev = file->private_data;
223 struct v4l2_mbus_framefmt mbus_fmt;
224
225 saa_call_all(dev, video, g_mbus_fmt, &mbus_fmt);
226
227 v4l2_fill_pix_format(&f->fmt.pix, &mbus_fmt);
228 f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
229 f->fmt.pix.sizeimage = TS_PACKET_SIZE * dev->ts.nr_packets;
230 f->fmt.pix.bytesperline = 0;
231 f->fmt.pix.priv = 0;
232
233 return 0;
234}
235
236static int empress_s_fmt_vid_cap(struct file *file, void *priv,
237 struct v4l2_format *f)
238{
239 struct saa7134_dev *dev = file->private_data;
240 struct v4l2_mbus_framefmt mbus_fmt;
241
242 v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
243 saa_call_all(dev, video, s_mbus_fmt, &mbus_fmt);
244 v4l2_fill_pix_format(&f->fmt.pix, &mbus_fmt);
245
246 f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
247 f->fmt.pix.sizeimage = TS_PACKET_SIZE * dev->ts.nr_packets;
248 f->fmt.pix.bytesperline = 0;
249 f->fmt.pix.priv = 0;
250
251 return 0;
252}
253
254static int empress_try_fmt_vid_cap(struct file *file, void *priv,
255 struct v4l2_format *f)
256{
257 struct saa7134_dev *dev = file->private_data;
258 struct v4l2_mbus_framefmt mbus_fmt;
259
260 v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
261 saa_call_all(dev, video, try_mbus_fmt, &mbus_fmt);
262 v4l2_fill_pix_format(&f->fmt.pix, &mbus_fmt);
263
264 f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
265 f->fmt.pix.sizeimage = TS_PACKET_SIZE * dev->ts.nr_packets;
266 f->fmt.pix.bytesperline = 0;
267 f->fmt.pix.priv = 0;
268
269 return 0;
270}
271
272static int empress_reqbufs(struct file *file, void *priv,
273 struct v4l2_requestbuffers *p)
274{
275 struct saa7134_dev *dev = file->private_data;
276
277 return videobuf_reqbufs(&dev->empress_tsq, p);
278}
279
280static int empress_querybuf(struct file *file, void *priv,
281 struct v4l2_buffer *b)
282{
283 struct saa7134_dev *dev = file->private_data;
284
285 return videobuf_querybuf(&dev->empress_tsq, b);
286}
287
288static int empress_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
289{
290 struct saa7134_dev *dev = file->private_data;
291
292 return videobuf_qbuf(&dev->empress_tsq, b);
293}
294
295static int empress_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
296{
297 struct saa7134_dev *dev = file->private_data;
298
299 return videobuf_dqbuf(&dev->empress_tsq, b,
300 file->f_flags & O_NONBLOCK);
301}
302
303static int empress_streamon(struct file *file, void *priv,
304 enum v4l2_buf_type type)
305{
306 struct saa7134_dev *dev = file->private_data;
307
308 return videobuf_streamon(&dev->empress_tsq);
309}
310
311static int empress_streamoff(struct file *file, void *priv,
312 enum v4l2_buf_type type)
313{
314 struct saa7134_dev *dev = file->private_data;
315
316 return videobuf_streamoff(&dev->empress_tsq);
317}
318
319static int empress_s_ext_ctrls(struct file *file, void *priv,
320 struct v4l2_ext_controls *ctrls)
321{
322 struct saa7134_dev *dev = file->private_data;
323 int err;
324
325
326
327 if (ctrls->count == 0)
328 return 0;
329
330 if (ctrls->ctrl_class != V4L2_CTRL_CLASS_MPEG)
331 return -EINVAL;
332
333 err = saa_call_empress(dev, core, s_ext_ctrls, ctrls);
334 ts_init_encoder(dev);
335
336 return err;
337}
338
339static int empress_g_ext_ctrls(struct file *file, void *priv,
340 struct v4l2_ext_controls *ctrls)
341{
342 struct saa7134_dev *dev = file->private_data;
343
344 if (ctrls->ctrl_class != V4L2_CTRL_CLASS_MPEG)
345 return -EINVAL;
346 return saa_call_empress(dev, core, g_ext_ctrls, ctrls);
347}
348
349static int empress_g_ctrl(struct file *file, void *priv,
350 struct v4l2_control *c)
351{
352 struct saa7134_dev *dev = file->private_data;
353
354 return saa7134_g_ctrl_internal(dev, NULL, c);
355}
356
357static int empress_s_ctrl(struct file *file, void *priv,
358 struct v4l2_control *c)
359{
360 struct saa7134_dev *dev = file->private_data;
361
362 return saa7134_s_ctrl_internal(dev, NULL, c);
363}
364
365static int empress_queryctrl(struct file *file, void *priv,
366 struct v4l2_queryctrl *c)
367{
368
369 static const u32 user_ctrls[] = {
370 V4L2_CID_USER_CLASS,
371 V4L2_CID_BRIGHTNESS,
372 V4L2_CID_CONTRAST,
373 V4L2_CID_SATURATION,
374 V4L2_CID_HUE,
375 V4L2_CID_AUDIO_VOLUME,
376 V4L2_CID_AUDIO_MUTE,
377 V4L2_CID_HFLIP,
378 0
379 };
380
381
382 static const u32 mpeg_ctrls[] = {
383 V4L2_CID_MPEG_CLASS,
384 V4L2_CID_MPEG_STREAM_TYPE,
385 V4L2_CID_MPEG_STREAM_PID_PMT,
386 V4L2_CID_MPEG_STREAM_PID_AUDIO,
387 V4L2_CID_MPEG_STREAM_PID_VIDEO,
388 V4L2_CID_MPEG_STREAM_PID_PCR,
389 V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ,
390 V4L2_CID_MPEG_AUDIO_ENCODING,
391 V4L2_CID_MPEG_AUDIO_L2_BITRATE,
392 V4L2_CID_MPEG_VIDEO_ENCODING,
393 V4L2_CID_MPEG_VIDEO_ASPECT,
394 V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
395 V4L2_CID_MPEG_VIDEO_BITRATE,
396 V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
397 0
398 };
399 static const u32 *ctrl_classes[] = {
400 user_ctrls,
401 mpeg_ctrls,
402 NULL
403 };
404 struct saa7134_dev *dev = file->private_data;
405
406 c->id = v4l2_ctrl_next(ctrl_classes, c->id);
407 if (c->id == 0)
408 return -EINVAL;
409 if (c->id == V4L2_CID_USER_CLASS || c->id == V4L2_CID_MPEG_CLASS)
410 return v4l2_ctrl_query_fill(c, 0, 0, 0, 0);
411 if (V4L2_CTRL_ID2CLASS(c->id) != V4L2_CTRL_CLASS_MPEG)
412 return saa7134_queryctrl(file, priv, c);
413 return saa_call_empress(dev, core, queryctrl, c);
414}
415
416static int empress_querymenu(struct file *file, void *priv,
417 struct v4l2_querymenu *c)
418{
419 struct saa7134_dev *dev = file->private_data;
420
421 if (V4L2_CTRL_ID2CLASS(c->id) != V4L2_CTRL_CLASS_MPEG)
422 return -EINVAL;
423 return saa_call_empress(dev, core, querymenu, c);
424}
425
426static int empress_s_std(struct file *file, void *priv, v4l2_std_id id)
427{
428 struct saa7134_dev *dev = file->private_data;
429
430 return saa7134_s_std_internal(dev, NULL, id);
431}
432
433static int empress_g_std(struct file *file, void *priv, v4l2_std_id *id)
434{
435 struct saa7134_dev *dev = file->private_data;
436
437 *id = dev->tvnorm->id;
438 return 0;
439}
440
441static const struct v4l2_file_operations ts_fops =
442{
443 .owner = THIS_MODULE,
444 .open = ts_open,
445 .release = ts_release,
446 .read = ts_read,
447 .poll = ts_poll,
448 .mmap = ts_mmap,
449 .ioctl = video_ioctl2,
450};
451
452static const struct v4l2_ioctl_ops ts_ioctl_ops = {
453 .vidioc_querycap = empress_querycap,
454 .vidioc_enum_fmt_vid_cap = empress_enum_fmt_vid_cap,
455 .vidioc_try_fmt_vid_cap = empress_try_fmt_vid_cap,
456 .vidioc_s_fmt_vid_cap = empress_s_fmt_vid_cap,
457 .vidioc_g_fmt_vid_cap = empress_g_fmt_vid_cap,
458 .vidioc_reqbufs = empress_reqbufs,
459 .vidioc_querybuf = empress_querybuf,
460 .vidioc_qbuf = empress_qbuf,
461 .vidioc_dqbuf = empress_dqbuf,
462 .vidioc_streamon = empress_streamon,
463 .vidioc_streamoff = empress_streamoff,
464 .vidioc_s_ext_ctrls = empress_s_ext_ctrls,
465 .vidioc_g_ext_ctrls = empress_g_ext_ctrls,
466 .vidioc_enum_input = empress_enum_input,
467 .vidioc_g_input = empress_g_input,
468 .vidioc_s_input = empress_s_input,
469 .vidioc_queryctrl = empress_queryctrl,
470 .vidioc_querymenu = empress_querymenu,
471 .vidioc_g_ctrl = empress_g_ctrl,
472 .vidioc_s_ctrl = empress_s_ctrl,
473 .vidioc_s_std = empress_s_std,
474 .vidioc_g_std = empress_g_std,
475};
476
477
478
479static struct video_device saa7134_empress_template = {
480 .name = "saa7134-empress",
481 .fops = &ts_fops,
482 .ioctl_ops = &ts_ioctl_ops,
483
484 .tvnorms = SAA7134_NORMS,
485};
486
487static void empress_signal_update(struct work_struct *work)
488{
489 struct saa7134_dev* dev =
490 container_of(work, struct saa7134_dev, empress_workqueue);
491
492 if (dev->nosignal) {
493 dprintk("no video signal\n");
494 } else {
495 dprintk("video signal acquired\n");
496 }
497}
498
499static void empress_signal_change(struct saa7134_dev *dev)
500{
501 schedule_work(&dev->empress_workqueue);
502}
503
504
505static int empress_init(struct saa7134_dev *dev)
506{
507 int err;
508
509 dprintk("%s: %s\n",dev->name,__func__);
510 dev->empress_dev = video_device_alloc();
511 if (NULL == dev->empress_dev)
512 return -ENOMEM;
513 *(dev->empress_dev) = saa7134_empress_template;
514 dev->empress_dev->v4l2_dev = &dev->v4l2_dev;
515 dev->empress_dev->release = video_device_release;
516 snprintf(dev->empress_dev->name, sizeof(dev->empress_dev->name),
517 "%s empress (%s)", dev->name,
518 saa7134_boards[dev->board].name);
519
520 INIT_WORK(&dev->empress_workqueue, empress_signal_update);
521
522 video_set_drvdata(dev->empress_dev, dev);
523 err = video_register_device(dev->empress_dev,VFL_TYPE_GRABBER,
524 empress_nr[dev->nr]);
525 if (err < 0) {
526 printk(KERN_INFO "%s: can't register video device\n",
527 dev->name);
528 video_device_release(dev->empress_dev);
529 dev->empress_dev = NULL;
530 return err;
531 }
532 printk(KERN_INFO "%s: registered device %s [mpeg]\n",
533 dev->name, video_device_node_name(dev->empress_dev));
534
535 videobuf_queue_sg_init(&dev->empress_tsq, &saa7134_ts_qops,
536 &dev->pci->dev, &dev->slock,
537 V4L2_BUF_TYPE_VIDEO_CAPTURE,
538 V4L2_FIELD_ALTERNATE,
539 sizeof(struct saa7134_buf),
540 dev, NULL);
541
542 empress_signal_update(&dev->empress_workqueue);
543 return 0;
544}
545
546static int empress_fini(struct saa7134_dev *dev)
547{
548 dprintk("%s: %s\n",dev->name,__func__);
549
550 if (NULL == dev->empress_dev)
551 return 0;
552 flush_work(&dev->empress_workqueue);
553 video_unregister_device(dev->empress_dev);
554 dev->empress_dev = NULL;
555 return 0;
556}
557
558static struct saa7134_mpeg_ops empress_ops = {
559 .type = SAA7134_MPEG_EMPRESS,
560 .init = empress_init,
561 .fini = empress_fini,
562 .signal_change = empress_signal_change,
563};
564
565static int __init empress_register(void)
566{
567 return saa7134_ts_register(&empress_ops);
568}
569
570static void __exit empress_unregister(void)
571{
572 saa7134_ts_unregister(&empress_ops);
573}
574
575module_init(empress_register);
576module_exit(empress_unregister);
577
578
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584
