3 * (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include <linux/init.h>
21 #include <linux/list.h>
22 #include <linux/module.h>
23 #include <linux/kernel.h>
24 #include <linux/smp_lock.h>
25 #include <linux/delay.h>
27 #include "saa7134-reg.h"
30 #include <media/saa6752hs.h>
31 #include <media/v4l2-common.h>
32 #include <media/v4l2-chip-ident.h>
34 /* ------------------------------------------------------------------ */
36 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
37 MODULE_LICENSE("GPL");
39 static unsigned int empress_nr
[] = {[0 ... (SAA7134_MAXBOARDS
- 1)] = UNSET
};
41 module_param_array(empress_nr
, int, NULL
, 0444);
42 MODULE_PARM_DESC(empress_nr
,"ts device number");
44 static unsigned int debug
;
45 module_param(debug
, int, 0644);
46 MODULE_PARM_DESC(debug
,"enable debug messages");
48 #define dprintk(fmt, arg...) if (debug) \
49 printk(KERN_DEBUG "%s/empress: " fmt, dev->name , ## arg)
51 /* ------------------------------------------------------------------ */
53 static void ts_reset_encoder(struct saa7134_dev
* dev
)
55 if (!dev
->empress_started
)
58 saa_writeb(SAA7134_SPECIAL_MODE
, 0x00);
60 saa_writeb(SAA7134_SPECIAL_MODE
, 0x01);
62 dev
->empress_started
= 0;
65 static int ts_init_encoder(struct saa7134_dev
* dev
)
67 u32 leading_null_bytes
= 0;
69 /* If more cards start to need this, then this
70 should probably be added to the card definitions. */
72 case SAA7134_BOARD_BEHOLD_M6
:
73 case SAA7134_BOARD_BEHOLD_M63
:
74 case SAA7134_BOARD_BEHOLD_M6_EXTRA
:
75 leading_null_bytes
= 1;
78 ts_reset_encoder(dev
);
79 saa_call_all(dev
, core
, init
, leading_null_bytes
);
80 dev
->empress_started
= 1;
84 /* ------------------------------------------------------------------ */
86 static int ts_open(struct file
*file
)
88 struct video_device
*vdev
= video_devdata(file
);
89 struct saa7134_dev
*dev
= video_drvdata(file
);
92 dprintk("open dev=%s\n", video_device_node_name(vdev
));
94 if (!mutex_trylock(&dev
->empress_tsq
.vb_lock
))
96 if (atomic_read(&dev
->empress_users
))
100 saa_writeb(SAA7134_AUDIO_MUTE_CTRL
,
101 saa_readb(SAA7134_AUDIO_MUTE_CTRL
) & ~(1 << 6));
103 atomic_inc(&dev
->empress_users
);
104 file
->private_data
= dev
;
108 mutex_unlock(&dev
->empress_tsq
.vb_lock
);
112 static int ts_release(struct file
*file
)
114 struct saa7134_dev
*dev
= file
->private_data
;
116 videobuf_stop(&dev
->empress_tsq
);
117 videobuf_mmap_free(&dev
->empress_tsq
);
119 /* stop the encoder */
120 ts_reset_encoder(dev
);
123 saa_writeb(SAA7134_AUDIO_MUTE_CTRL
,
124 saa_readb(SAA7134_AUDIO_MUTE_CTRL
) | (1 << 6));
126 atomic_dec(&dev
->empress_users
);
132 ts_read(struct file
*file
, char __user
*data
, size_t count
, loff_t
*ppos
)
134 struct saa7134_dev
*dev
= file
->private_data
;
136 if (!dev
->empress_started
)
137 ts_init_encoder(dev
);
139 return videobuf_read_stream(&dev
->empress_tsq
,
140 data
, count
, ppos
, 0,
141 file
->f_flags
& O_NONBLOCK
);
145 ts_poll(struct file
*file
, struct poll_table_struct
*wait
)
147 struct saa7134_dev
*dev
= file
->private_data
;
149 return videobuf_poll_stream(file
, &dev
->empress_tsq
, wait
);
154 ts_mmap(struct file
*file
, struct vm_area_struct
* vma
)
156 struct saa7134_dev
*dev
= file
->private_data
;
158 return videobuf_mmap_mapper(&dev
->empress_tsq
, vma
);
162 * This function is _not_ called directly, but from
163 * video_generic_ioctl (and maybe others). userspace
164 * copying is done already, arg is a kernel pointer.
167 static int empress_querycap(struct file
*file
, void *priv
,
168 struct v4l2_capability
*cap
)
170 struct saa7134_dev
*dev
= file
->private_data
;
172 strcpy(cap
->driver
, "saa7134");
173 strlcpy(cap
->card
, saa7134_boards
[dev
->board
].name
,
175 sprintf(cap
->bus_info
, "PCI:%s", pci_name(dev
->pci
));
176 cap
->version
= SAA7134_VERSION_CODE
;
178 V4L2_CAP_VIDEO_CAPTURE
|
184 static int empress_enum_input(struct file
*file
, void *priv
,
185 struct v4l2_input
*i
)
190 i
->type
= V4L2_INPUT_TYPE_CAMERA
;
191 strcpy(i
->name
, "CCIR656");
196 static int empress_g_input(struct file
*file
, void *priv
, unsigned int *i
)
202 static int empress_s_input(struct file
*file
, void *priv
, unsigned int i
)
210 static int empress_enum_fmt_vid_cap(struct file
*file
, void *priv
,
211 struct v4l2_fmtdesc
*f
)
216 strlcpy(f
->description
, "MPEG TS", sizeof(f
->description
));
217 f
->pixelformat
= V4L2_PIX_FMT_MPEG
;
222 static int empress_g_fmt_vid_cap(struct file
*file
, void *priv
,
223 struct v4l2_format
*f
)
225 struct saa7134_dev
*dev
= file
->private_data
;
226 struct v4l2_mbus_framefmt mbus_fmt
;
228 saa_call_all(dev
, video
, g_mbus_fmt
, &mbus_fmt
);
230 v4l2_fill_pix_format(&f
->fmt
.pix
, &mbus_fmt
);
231 f
->fmt
.pix
.pixelformat
= V4L2_PIX_FMT_MPEG
;
232 f
->fmt
.pix
.sizeimage
= TS_PACKET_SIZE
* dev
->ts
.nr_packets
;
237 static int empress_s_fmt_vid_cap(struct file
*file
, void *priv
,
238 struct v4l2_format
*f
)
240 struct saa7134_dev
*dev
= file
->private_data
;
241 struct v4l2_mbus_framefmt mbus_fmt
;
243 v4l2_fill_mbus_format(&mbus_fmt
, &f
->fmt
.pix
, V4L2_MBUS_FMT_FIXED
);
244 saa_call_all(dev
, video
, s_mbus_fmt
, &mbus_fmt
);
245 v4l2_fill_pix_format(&f
->fmt
.pix
, &mbus_fmt
);
247 f
->fmt
.pix
.pixelformat
= V4L2_PIX_FMT_MPEG
;
248 f
->fmt
.pix
.sizeimage
= TS_PACKET_SIZE
* dev
->ts
.nr_packets
;
253 static int empress_try_fmt_vid_cap(struct file
*file
, void *priv
,
254 struct v4l2_format
*f
)
256 struct saa7134_dev
*dev
= file
->private_data
;
258 f
->fmt
.pix
.pixelformat
= V4L2_PIX_FMT_MPEG
;
259 f
->fmt
.pix
.sizeimage
= TS_PACKET_SIZE
* dev
->ts
.nr_packets
;
264 static int empress_reqbufs(struct file
*file
, void *priv
,
265 struct v4l2_requestbuffers
*p
)
267 struct saa7134_dev
*dev
= file
->private_data
;
269 return videobuf_reqbufs(&dev
->empress_tsq
, p
);
272 static int empress_querybuf(struct file
*file
, void *priv
,
273 struct v4l2_buffer
*b
)
275 struct saa7134_dev
*dev
= file
->private_data
;
277 return videobuf_querybuf(&dev
->empress_tsq
, b
);
280 static int empress_qbuf(struct file
*file
, void *priv
, struct v4l2_buffer
*b
)
282 struct saa7134_dev
*dev
= file
->private_data
;
284 return videobuf_qbuf(&dev
->empress_tsq
, b
);
287 static int empress_dqbuf(struct file
*file
, void *priv
, struct v4l2_buffer
*b
)
289 struct saa7134_dev
*dev
= file
->private_data
;
291 return videobuf_dqbuf(&dev
->empress_tsq
, b
,
292 file
->f_flags
& O_NONBLOCK
);
295 static int empress_streamon(struct file
*file
, void *priv
,
296 enum v4l2_buf_type type
)
298 struct saa7134_dev
*dev
= file
->private_data
;
300 return videobuf_streamon(&dev
->empress_tsq
);
303 static int empress_streamoff(struct file
*file
, void *priv
,
304 enum v4l2_buf_type type
)
306 struct saa7134_dev
*dev
= file
->private_data
;
308 return videobuf_streamoff(&dev
->empress_tsq
);
311 static int empress_s_ext_ctrls(struct file
*file
, void *priv
,
312 struct v4l2_ext_controls
*ctrls
)
314 struct saa7134_dev
*dev
= file
->private_data
;
317 /* count == 0 is abused in saa6752hs.c, so that special
318 case is handled here explicitly. */
319 if (ctrls
->count
== 0)
322 if (ctrls
->ctrl_class
!= V4L2_CTRL_CLASS_MPEG
)
325 err
= saa_call_empress(dev
, core
, s_ext_ctrls
, ctrls
);
326 ts_init_encoder(dev
);
331 static int empress_g_ext_ctrls(struct file
*file
, void *priv
,
332 struct v4l2_ext_controls
*ctrls
)
334 struct saa7134_dev
*dev
= file
->private_data
;
336 if (ctrls
->ctrl_class
!= V4L2_CTRL_CLASS_MPEG
)
338 return saa_call_empress(dev
, core
, g_ext_ctrls
, ctrls
);
341 static int empress_g_ctrl(struct file
*file
, void *priv
,
342 struct v4l2_control
*c
)
344 struct saa7134_dev
*dev
= file
->private_data
;
346 return saa7134_g_ctrl_internal(dev
, NULL
, c
);
349 static int empress_s_ctrl(struct file
*file
, void *priv
,
350 struct v4l2_control
*c
)
352 struct saa7134_dev
*dev
= file
->private_data
;
354 return saa7134_s_ctrl_internal(dev
, NULL
, c
);
357 static int empress_queryctrl(struct file
*file
, void *priv
,
358 struct v4l2_queryctrl
*c
)
360 /* Must be sorted from low to high control ID! */
361 static const u32 user_ctrls
[] = {
367 V4L2_CID_AUDIO_VOLUME
,
373 /* Must be sorted from low to high control ID! */
374 static const u32 mpeg_ctrls
[] = {
376 V4L2_CID_MPEG_STREAM_TYPE
,
377 V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ
,
378 V4L2_CID_MPEG_AUDIO_ENCODING
,
379 V4L2_CID_MPEG_AUDIO_L2_BITRATE
,
380 V4L2_CID_MPEG_VIDEO_ENCODING
,
381 V4L2_CID_MPEG_VIDEO_ASPECT
,
382 V4L2_CID_MPEG_VIDEO_BITRATE_MODE
,
383 V4L2_CID_MPEG_VIDEO_BITRATE
,
384 V4L2_CID_MPEG_VIDEO_BITRATE_PEAK
,
387 static const u32
*ctrl_classes
[] = {
392 struct saa7134_dev
*dev
= file
->private_data
;
394 c
->id
= v4l2_ctrl_next(ctrl_classes
, c
->id
);
397 if (c
->id
== V4L2_CID_USER_CLASS
|| c
->id
== V4L2_CID_MPEG_CLASS
)
398 return v4l2_ctrl_query_fill(c
, 0, 0, 0, 0);
399 if (V4L2_CTRL_ID2CLASS(c
->id
) != V4L2_CTRL_CLASS_MPEG
)
400 return saa7134_queryctrl(file
, priv
, c
);
401 return saa_call_empress(dev
, core
, queryctrl
, c
);
404 static int empress_querymenu(struct file
*file
, void *priv
,
405 struct v4l2_querymenu
*c
)
407 struct saa7134_dev
*dev
= file
->private_data
;
409 if (V4L2_CTRL_ID2CLASS(c
->id
) != V4L2_CTRL_CLASS_MPEG
)
411 return saa_call_empress(dev
, core
, querymenu
, c
);
414 static int empress_g_chip_ident(struct file
*file
, void *fh
,
415 struct v4l2_dbg_chip_ident
*chip
)
417 struct saa7134_dev
*dev
= file
->private_data
;
419 chip
->ident
= V4L2_IDENT_NONE
;
421 if (chip
->match
.type
== V4L2_CHIP_MATCH_I2C_DRIVER
&&
422 !strcmp(chip
->match
.name
, "saa6752hs"))
423 return saa_call_empress(dev
, core
, g_chip_ident
, chip
);
424 if (chip
->match
.type
== V4L2_CHIP_MATCH_I2C_ADDR
)
425 return saa_call_empress(dev
, core
, g_chip_ident
, chip
);
429 static int empress_s_std(struct file
*file
, void *priv
, v4l2_std_id
*id
)
431 struct saa7134_dev
*dev
= file
->private_data
;
433 return saa7134_s_std_internal(dev
, NULL
, id
);
436 static int empress_g_std(struct file
*file
, void *priv
, v4l2_std_id
*id
)
438 struct saa7134_dev
*dev
= file
->private_data
;
440 *id
= dev
->tvnorm
->id
;
444 static const struct v4l2_file_operations ts_fops
=
446 .owner
= THIS_MODULE
,
448 .release
= ts_release
,
452 .ioctl
= video_ioctl2
,
455 static const struct v4l2_ioctl_ops ts_ioctl_ops
= {
456 .vidioc_querycap
= empress_querycap
,
457 .vidioc_enum_fmt_vid_cap
= empress_enum_fmt_vid_cap
,
458 .vidioc_try_fmt_vid_cap
= empress_try_fmt_vid_cap
,
459 .vidioc_s_fmt_vid_cap
= empress_s_fmt_vid_cap
,
460 .vidioc_g_fmt_vid_cap
= empress_g_fmt_vid_cap
,
461 .vidioc_reqbufs
= empress_reqbufs
,
462 .vidioc_querybuf
= empress_querybuf
,
463 .vidioc_qbuf
= empress_qbuf
,
464 .vidioc_dqbuf
= empress_dqbuf
,
465 .vidioc_streamon
= empress_streamon
,
466 .vidioc_streamoff
= empress_streamoff
,
467 .vidioc_s_ext_ctrls
= empress_s_ext_ctrls
,
468 .vidioc_g_ext_ctrls
= empress_g_ext_ctrls
,
469 .vidioc_enum_input
= empress_enum_input
,
470 .vidioc_g_input
= empress_g_input
,
471 .vidioc_s_input
= empress_s_input
,
472 .vidioc_queryctrl
= empress_queryctrl
,
473 .vidioc_querymenu
= empress_querymenu
,
474 .vidioc_g_ctrl
= empress_g_ctrl
,
475 .vidioc_s_ctrl
= empress_s_ctrl
,
476 .vidioc_g_chip_ident
= empress_g_chip_ident
,
477 .vidioc_s_std
= empress_s_std
,
478 .vidioc_g_std
= empress_g_std
,
481 /* ----------------------------------------------------------- */
483 static struct video_device saa7134_empress_template
= {
484 .name
= "saa7134-empress",
486 .ioctl_ops
= &ts_ioctl_ops
,
488 .tvnorms
= SAA7134_NORMS
,
489 .current_norm
= V4L2_STD_PAL
,
492 static void empress_signal_update(struct work_struct
*work
)
494 struct saa7134_dev
* dev
=
495 container_of(work
, struct saa7134_dev
, empress_workqueue
);
498 dprintk("no video signal\n");
500 dprintk("video signal acquired\n");
504 static void empress_signal_change(struct saa7134_dev
*dev
)
506 schedule_work(&dev
->empress_workqueue
);
510 static int empress_init(struct saa7134_dev
*dev
)
514 dprintk("%s: %s\n",dev
->name
,__func__
);
515 dev
->empress_dev
= video_device_alloc();
516 if (NULL
== dev
->empress_dev
)
518 *(dev
->empress_dev
) = saa7134_empress_template
;
519 dev
->empress_dev
->parent
= &dev
->pci
->dev
;
520 dev
->empress_dev
->release
= video_device_release
;
521 snprintf(dev
->empress_dev
->name
, sizeof(dev
->empress_dev
->name
),
522 "%s empress (%s)", dev
->name
,
523 saa7134_boards
[dev
->board
].name
);
525 INIT_WORK(&dev
->empress_workqueue
, empress_signal_update
);
527 video_set_drvdata(dev
->empress_dev
, dev
);
528 err
= video_register_device(dev
->empress_dev
,VFL_TYPE_GRABBER
,
529 empress_nr
[dev
->nr
]);
531 printk(KERN_INFO
"%s: can't register video device\n",
533 video_device_release(dev
->empress_dev
);
534 dev
->empress_dev
= NULL
;
537 printk(KERN_INFO
"%s: registered device %s [mpeg]\n",
538 dev
->name
, video_device_node_name(dev
->empress_dev
));
540 videobuf_queue_sg_init(&dev
->empress_tsq
, &saa7134_ts_qops
,
541 &dev
->pci
->dev
, &dev
->slock
,
542 V4L2_BUF_TYPE_VIDEO_CAPTURE
,
543 V4L2_FIELD_ALTERNATE
,
544 sizeof(struct saa7134_buf
),
547 empress_signal_update(&dev
->empress_workqueue
);
551 static int empress_fini(struct saa7134_dev
*dev
)
553 dprintk("%s: %s\n",dev
->name
,__func__
);
555 if (NULL
== dev
->empress_dev
)
557 flush_scheduled_work();
558 video_unregister_device(dev
->empress_dev
);
559 dev
->empress_dev
= NULL
;
563 static struct saa7134_mpeg_ops empress_ops
= {
564 .type
= SAA7134_MPEG_EMPRESS
,
565 .init
= empress_init
,
566 .fini
= empress_fini
,
567 .signal_change
= empress_signal_change
,
570 static int __init
empress_register(void)
572 return saa7134_ts_register(&empress_ops
);
575 static void __exit
empress_unregister(void)
577 saa7134_ts_unregister(&empress_ops
);
580 module_init(empress_register
);
581 module_exit(empress_unregister
);
583 /* ----------------------------------------------------------- */