2 * Hauppauge HD PVR USB driver - video 4 linux 2 interface
4 * Copyright (C) 2008 Janne Grunau (j@jannau.net)
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation, version 2.
12 #include <linux/kernel.h>
13 #include <linux/errno.h>
14 #include <linux/init.h>
15 #include <linux/slab.h>
16 #include <linux/module.h>
17 #include <linux/uaccess.h>
18 #include <linux/usb.h>
19 #include <linux/mutex.h>
20 #include <linux/workqueue.h>
22 #include <linux/videodev2.h>
23 #include <media/v4l2-dev.h>
24 #include <media/v4l2-common.h>
25 #include <media/v4l2-ioctl.h>
28 #define BULK_URB_TIMEOUT 90 /* 0.09 seconds */
30 #define print_buffer_status() { \
31 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev, \
32 "%s:%d buffer stat: %d free, %d proc\n", \
34 list_size(&dev->free_buff_list), \
35 list_size(&dev->rec_buff_list)); }
38 struct hdpvr_device
*dev
;
41 static uint
list_size(struct list_head
*list
)
43 struct list_head
*tmp
;
46 list_for_each(tmp
, list
) {
53 /*=========================================================================*/
55 static void hdpvr_read_bulk_callback(struct urb
*urb
)
57 struct hdpvr_buffer
*buf
= (struct hdpvr_buffer
*)urb
->context
;
58 struct hdpvr_device
*dev
= buf
->dev
;
60 /* marking buffer as received and wake waiting */
61 buf
->status
= BUFSTAT_READY
;
62 wake_up_interruptible(&dev
->wait_data
);
65 /*=========================================================================*/
68 /* function expects dev->io_mutex to be hold by caller */
69 int hdpvr_cancel_queue(struct hdpvr_device
*dev
)
71 struct hdpvr_buffer
*buf
;
73 list_for_each_entry(buf
, &dev
->rec_buff_list
, buff_list
) {
74 usb_kill_urb(buf
->urb
);
75 buf
->status
= BUFSTAT_AVAILABLE
;
78 list_splice_init(&dev
->rec_buff_list
, dev
->free_buff_list
.prev
);
83 static int hdpvr_free_queue(struct list_head
*q
)
85 struct list_head
*tmp
;
87 struct hdpvr_buffer
*buf
;
90 for (p
= q
->next
; p
!= q
;) {
91 buf
= list_entry(p
, struct hdpvr_buffer
, buff_list
);
94 usb_free_coherent(urb
->dev
, urb
->transfer_buffer_length
,
95 urb
->transfer_buffer
, urb
->transfer_dma
);
106 /* function expects dev->io_mutex to be hold by caller */
107 int hdpvr_free_buffers(struct hdpvr_device
*dev
)
109 hdpvr_cancel_queue(dev
);
111 hdpvr_free_queue(&dev
->free_buff_list
);
112 hdpvr_free_queue(&dev
->rec_buff_list
);
117 /* function expects dev->io_mutex to be hold by caller */
118 int hdpvr_alloc_buffers(struct hdpvr_device
*dev
, uint count
)
121 int retval
= -ENOMEM
;
123 struct hdpvr_buffer
*buf
;
126 v4l2_dbg(MSG_INFO
, hdpvr_debug
, &dev
->v4l2_dev
,
127 "allocating %u buffers\n", count
);
129 for (i
= 0; i
< count
; i
++) {
131 buf
= kzalloc(sizeof(struct hdpvr_buffer
), GFP_KERNEL
);
133 v4l2_err(&dev
->v4l2_dev
, "cannot allocate buffer\n");
138 urb
= usb_alloc_urb(0, GFP_KERNEL
);
140 v4l2_err(&dev
->v4l2_dev
, "cannot allocate urb\n");
145 mem
= usb_alloc_coherent(dev
->udev
, dev
->bulk_in_size
, GFP_KERNEL
,
148 v4l2_err(&dev
->v4l2_dev
,
149 "cannot allocate usb transfer buffer\n");
150 goto exit_urb_buffer
;
153 usb_fill_bulk_urb(buf
->urb
, dev
->udev
,
154 usb_rcvbulkpipe(dev
->udev
,
155 dev
->bulk_in_endpointAddr
),
156 mem
, dev
->bulk_in_size
,
157 hdpvr_read_bulk_callback
, buf
);
159 buf
->urb
->transfer_flags
|= URB_NO_TRANSFER_DMA_MAP
;
160 buf
->status
= BUFSTAT_AVAILABLE
;
161 list_add_tail(&buf
->buff_list
, &dev
->free_buff_list
);
169 hdpvr_free_buffers(dev
);
173 static int hdpvr_submit_buffers(struct hdpvr_device
*dev
)
175 struct hdpvr_buffer
*buf
;
177 int ret
= 0, err_count
= 0;
179 mutex_lock(&dev
->io_mutex
);
181 while (dev
->status
== STATUS_STREAMING
&&
182 !list_empty(&dev
->free_buff_list
)) {
184 buf
= list_entry(dev
->free_buff_list
.next
, struct hdpvr_buffer
,
186 if (buf
->status
!= BUFSTAT_AVAILABLE
) {
187 v4l2_err(&dev
->v4l2_dev
,
188 "buffer not marked as available\n");
195 urb
->actual_length
= 0;
196 ret
= usb_submit_urb(urb
, GFP_KERNEL
);
198 v4l2_err(&dev
->v4l2_dev
,
199 "usb_submit_urb in %s returned %d\n",
205 buf
->status
= BUFSTAT_INPROGRESS
;
206 list_move_tail(&buf
->buff_list
, &dev
->rec_buff_list
);
209 print_buffer_status();
210 mutex_unlock(&dev
->io_mutex
);
214 static struct hdpvr_buffer
*hdpvr_get_next_buffer(struct hdpvr_device
*dev
)
216 struct hdpvr_buffer
*buf
;
218 mutex_lock(&dev
->io_mutex
);
220 if (list_empty(&dev
->rec_buff_list
)) {
221 mutex_unlock(&dev
->io_mutex
);
225 buf
= list_entry(dev
->rec_buff_list
.next
, struct hdpvr_buffer
,
227 mutex_unlock(&dev
->io_mutex
);
232 static void hdpvr_transmit_buffers(struct work_struct
*work
)
234 struct hdpvr_device
*dev
= container_of(work
, struct hdpvr_device
,
237 while (dev
->status
== STATUS_STREAMING
) {
239 if (hdpvr_submit_buffers(dev
)) {
240 v4l2_err(&dev
->v4l2_dev
, "couldn't submit buffers\n");
243 if (wait_event_interruptible(dev
->wait_buffer
,
244 !list_empty(&dev
->free_buff_list
) ||
245 dev
->status
!= STATUS_STREAMING
))
249 v4l2_dbg(MSG_INFO
, hdpvr_debug
, &dev
->v4l2_dev
,
250 "transmit worker exited\n");
253 v4l2_dbg(MSG_INFO
, hdpvr_debug
, &dev
->v4l2_dev
,
254 "transmit buffers errored\n");
255 dev
->status
= STATUS_ERROR
;
258 /* function expects dev->io_mutex to be hold by caller */
259 static int hdpvr_start_streaming(struct hdpvr_device
*dev
)
262 struct hdpvr_video_info
*vidinf
;
264 if (dev
->status
== STATUS_STREAMING
)
266 else if (dev
->status
!= STATUS_IDLE
)
269 vidinf
= get_video_info(dev
);
272 v4l2_dbg(MSG_BUFFER
, hdpvr_debug
, &dev
->v4l2_dev
,
273 "video signal: %dx%d@%dhz\n", vidinf
->width
,
274 vidinf
->height
, vidinf
->fps
);
277 /* start streaming 2 request */
278 ret
= usb_control_msg(dev
->udev
,
279 usb_sndctrlpipe(dev
->udev
, 0),
280 0xb8, 0x38, 0x1, 0, NULL
, 0, 8000);
281 v4l2_dbg(MSG_BUFFER
, hdpvr_debug
, &dev
->v4l2_dev
,
282 "encoder start control request returned %d\n", ret
);
284 hdpvr_config_call(dev
, CTRL_START_STREAMING_VALUE
, 0x00);
286 INIT_WORK(&dev
->worker
, hdpvr_transmit_buffers
);
287 queue_work(dev
->workqueue
, &dev
->worker
);
289 v4l2_dbg(MSG_BUFFER
, hdpvr_debug
, &dev
->v4l2_dev
,
290 "streaming started\n");
291 dev
->status
= STATUS_STREAMING
;
296 v4l2_dbg(MSG_INFO
, hdpvr_debug
, &dev
->v4l2_dev
,
297 "no video signal at input %d\n", dev
->options
.video_input
);
302 /* function expects dev->io_mutex to be hold by caller */
303 static int hdpvr_stop_streaming(struct hdpvr_device
*dev
)
309 if (dev
->status
== STATUS_IDLE
)
311 else if (dev
->status
!= STATUS_STREAMING
)
314 buf
= kmalloc(dev
->bulk_in_size
, GFP_KERNEL
);
316 v4l2_err(&dev
->v4l2_dev
, "failed to allocate temporary buffer "
317 "for emptying the internal device buffer. "
318 "Next capture start will be slow\n");
320 dev
->status
= STATUS_SHUTTING_DOWN
;
321 hdpvr_config_call(dev
, CTRL_STOP_STREAMING_VALUE
, 0x00);
322 mutex_unlock(&dev
->io_mutex
);
324 wake_up_interruptible(&dev
->wait_buffer
);
327 flush_workqueue(dev
->workqueue
);
329 mutex_lock(&dev
->io_mutex
);
330 /* kill the still outstanding urbs */
331 hdpvr_cancel_queue(dev
);
333 /* emptying the device buffer beforeshutting it down */
334 while (buf
&& ++c
< 500 &&
335 !usb_bulk_msg(dev
->udev
,
336 usb_rcvbulkpipe(dev
->udev
,
337 dev
->bulk_in_endpointAddr
),
338 buf
, dev
->bulk_in_size
, &actual_length
,
340 v4l2_dbg(MSG_BUFFER
, hdpvr_debug
, &dev
->v4l2_dev
,
341 "%2d: got %d bytes\n", c
, actual_length
);
344 v4l2_dbg(MSG_BUFFER
, hdpvr_debug
, &dev
->v4l2_dev
,
345 "used %d urbs to empty device buffers\n", c
-1);
348 dev
->status
= STATUS_IDLE
;
354 /*=======================================================================*/
356 * video 4 linux 2 file operations
359 static int hdpvr_open(struct file
*file
)
361 struct hdpvr_device
*dev
;
363 int retval
= -ENOMEM
;
365 dev
= (struct hdpvr_device
*)video_get_drvdata(video_devdata(file
));
367 pr_err("open failing with with ENODEV\n");
372 fh
= kzalloc(sizeof(struct hdpvr_fh
), GFP_KERNEL
);
374 v4l2_err(&dev
->v4l2_dev
, "Out of memory\n");
377 /* lock the device to allow correctly handling errors
379 mutex_lock(&dev
->io_mutex
);
381 mutex_unlock(&dev
->io_mutex
);
385 /* save our object in the file's private structure */
386 file
->private_data
= fh
;
393 static int hdpvr_release(struct file
*file
)
395 struct hdpvr_fh
*fh
= file
->private_data
;
396 struct hdpvr_device
*dev
= fh
->dev
;
401 mutex_lock(&dev
->io_mutex
);
402 if (!(--dev
->open_count
) && dev
->status
== STATUS_STREAMING
)
403 hdpvr_stop_streaming(dev
);
405 mutex_unlock(&dev
->io_mutex
);
412 * will allocate buffers when called for the first time
414 static ssize_t
hdpvr_read(struct file
*file
, char __user
*buffer
, size_t count
,
417 struct hdpvr_fh
*fh
= file
->private_data
;
418 struct hdpvr_device
*dev
= fh
->dev
;
419 struct hdpvr_buffer
*buf
= NULL
;
421 unsigned int ret
= 0;
430 mutex_lock(&dev
->io_mutex
);
431 if (dev
->status
== STATUS_IDLE
) {
432 if (hdpvr_start_streaming(dev
)) {
433 v4l2_dbg(MSG_INFO
, hdpvr_debug
, &dev
->v4l2_dev
,
434 "start_streaming failed\n");
437 dev
->status
= STATUS_IDLE
;
438 mutex_unlock(&dev
->io_mutex
);
441 print_buffer_status();
443 mutex_unlock(&dev
->io_mutex
);
445 /* wait for the first buffer */
446 if (!(file
->f_flags
& O_NONBLOCK
)) {
447 if (wait_event_interruptible(dev
->wait_data
,
448 hdpvr_get_next_buffer(dev
)))
452 buf
= hdpvr_get_next_buffer(dev
);
454 while (count
> 0 && buf
) {
456 if (buf
->status
!= BUFSTAT_READY
&&
457 dev
->status
!= STATUS_DISCONNECTED
) {
458 /* return nonblocking */
459 if (file
->f_flags
& O_NONBLOCK
) {
465 if (wait_event_interruptible(dev
->wait_data
,
466 buf
->status
== BUFSTAT_READY
)) {
472 if (buf
->status
!= BUFSTAT_READY
)
475 /* set remaining bytes to copy */
477 rem
= urb
->actual_length
- buf
->pos
;
478 cnt
= rem
> count
? count
: rem
;
480 if (copy_to_user(buffer
, urb
->transfer_buffer
+ buf
->pos
,
482 v4l2_err(&dev
->v4l2_dev
, "read: copy_to_user failed\n");
493 /* finished, take next buffer */
494 if (buf
->pos
== urb
->actual_length
) {
495 mutex_lock(&dev
->io_mutex
);
497 buf
->status
= BUFSTAT_AVAILABLE
;
499 list_move_tail(&buf
->buff_list
, &dev
->free_buff_list
);
501 print_buffer_status();
503 mutex_unlock(&dev
->io_mutex
);
505 wake_up_interruptible(&dev
->wait_buffer
);
507 buf
= hdpvr_get_next_buffer(dev
);
516 static unsigned int hdpvr_poll(struct file
*filp
, poll_table
*wait
)
518 struct hdpvr_buffer
*buf
= NULL
;
519 struct hdpvr_fh
*fh
= filp
->private_data
;
520 struct hdpvr_device
*dev
= fh
->dev
;
521 unsigned int mask
= 0;
523 mutex_lock(&dev
->io_mutex
);
525 if (!video_is_registered(dev
->video_dev
)) {
526 mutex_unlock(&dev
->io_mutex
);
530 if (dev
->status
== STATUS_IDLE
) {
531 if (hdpvr_start_streaming(dev
)) {
532 v4l2_dbg(MSG_BUFFER
, hdpvr_debug
, &dev
->v4l2_dev
,
533 "start_streaming failed\n");
534 dev
->status
= STATUS_IDLE
;
537 print_buffer_status();
539 mutex_unlock(&dev
->io_mutex
);
541 buf
= hdpvr_get_next_buffer(dev
);
542 /* only wait if no data is available */
543 if (!buf
|| buf
->status
!= BUFSTAT_READY
) {
544 poll_wait(filp
, &dev
->wait_data
, wait
);
545 buf
= hdpvr_get_next_buffer(dev
);
547 if (buf
&& buf
->status
== BUFSTAT_READY
)
548 mask
|= POLLIN
| POLLRDNORM
;
554 static const struct v4l2_file_operations hdpvr_fops
= {
555 .owner
= THIS_MODULE
,
557 .release
= hdpvr_release
,
560 .unlocked_ioctl
= video_ioctl2
,
563 /*=======================================================================*/
565 * V4L2 ioctl handling
568 static int vidioc_querycap(struct file
*file
, void *priv
,
569 struct v4l2_capability
*cap
)
571 struct hdpvr_device
*dev
= video_drvdata(file
);
573 strcpy(cap
->driver
, "hdpvr");
574 strcpy(cap
->card
, "Hauppauge HD PVR");
575 usb_make_path(dev
->udev
, cap
->bus_info
, sizeof(cap
->bus_info
));
576 cap
->capabilities
= V4L2_CAP_VIDEO_CAPTURE
|
582 static int vidioc_s_std(struct file
*file
, void *private_data
,
585 struct hdpvr_fh
*fh
= file
->private_data
;
586 struct hdpvr_device
*dev
= fh
->dev
;
589 if (*std
& (V4L2_STD_NTSC
| V4L2_STD_PAL_60
))
592 return hdpvr_config_call(dev
, CTRL_VIDEO_STD_TYPE
, std_type
);
595 static const char *iname
[] = {
596 [HDPVR_COMPONENT
] = "Component",
597 [HDPVR_SVIDEO
] = "S-Video",
598 [HDPVR_COMPOSITE
] = "Composite",
601 static int vidioc_enum_input(struct file
*file
, void *priv
,
602 struct v4l2_input
*i
)
604 struct hdpvr_fh
*fh
= file
->private_data
;
605 struct hdpvr_device
*dev
= fh
->dev
;
609 if (n
>= HDPVR_VIDEO_INPUTS
)
612 i
->type
= V4L2_INPUT_TYPE_CAMERA
;
614 strncpy(i
->name
, iname
[n
], sizeof(i
->name
) - 1);
615 i
->name
[sizeof(i
->name
) - 1] = '\0';
617 i
->audioset
= 1<<HDPVR_RCA_FRONT
| 1<<HDPVR_RCA_BACK
| 1<<HDPVR_SPDIF
;
619 i
->std
= dev
->video_dev
->tvnorms
;
624 static int vidioc_s_input(struct file
*file
, void *private_data
,
627 struct hdpvr_fh
*fh
= file
->private_data
;
628 struct hdpvr_device
*dev
= fh
->dev
;
631 if (index
>= HDPVR_VIDEO_INPUTS
)
634 if (dev
->status
!= STATUS_IDLE
)
637 retval
= hdpvr_config_call(dev
, CTRL_VIDEO_INPUT_VALUE
, index
+1);
639 dev
->options
.video_input
= index
;
644 static int vidioc_g_input(struct file
*file
, void *private_data
,
647 struct hdpvr_fh
*fh
= file
->private_data
;
648 struct hdpvr_device
*dev
= fh
->dev
;
650 *index
= dev
->options
.video_input
;
655 static const char *audio_iname
[] = {
656 [HDPVR_RCA_FRONT
] = "RCA front",
657 [HDPVR_RCA_BACK
] = "RCA back",
658 [HDPVR_SPDIF
] = "SPDIF",
661 static int vidioc_enumaudio(struct file
*file
, void *priv
,
662 struct v4l2_audio
*audio
)
667 if (n
>= HDPVR_AUDIO_INPUTS
)
670 audio
->capability
= V4L2_AUDCAP_STEREO
;
672 strncpy(audio
->name
, audio_iname
[n
], sizeof(audio
->name
) - 1);
673 audio
->name
[sizeof(audio
->name
) - 1] = '\0';
678 static int vidioc_s_audio(struct file
*file
, void *private_data
,
679 struct v4l2_audio
*audio
)
681 struct hdpvr_fh
*fh
= file
->private_data
;
682 struct hdpvr_device
*dev
= fh
->dev
;
685 if (audio
->index
>= HDPVR_AUDIO_INPUTS
)
688 if (dev
->status
!= STATUS_IDLE
)
691 retval
= hdpvr_set_audio(dev
, audio
->index
+1, dev
->options
.audio_codec
);
693 dev
->options
.audio_input
= audio
->index
;
698 static int vidioc_g_audio(struct file
*file
, void *private_data
,
699 struct v4l2_audio
*audio
)
701 struct hdpvr_fh
*fh
= file
->private_data
;
702 struct hdpvr_device
*dev
= fh
->dev
;
704 audio
->index
= dev
->options
.audio_input
;
705 audio
->capability
= V4L2_AUDCAP_STEREO
;
706 strncpy(audio
->name
, audio_iname
[audio
->index
], sizeof(audio
->name
));
707 audio
->name
[sizeof(audio
->name
) - 1] = '\0';
711 static const s32 supported_v4l2_ctrls
[] = {
717 V4L2_CID_MPEG_AUDIO_ENCODING
,
718 V4L2_CID_MPEG_VIDEO_ENCODING
,
719 V4L2_CID_MPEG_VIDEO_BITRATE_MODE
,
720 V4L2_CID_MPEG_VIDEO_BITRATE
,
721 V4L2_CID_MPEG_VIDEO_BITRATE_PEAK
,
724 static int fill_queryctrl(struct hdpvr_options
*opt
, struct v4l2_queryctrl
*qc
,
730 case V4L2_CID_BRIGHTNESS
:
731 return v4l2_ctrl_query_fill(qc
, 0x0, 0xff, 1, 0x86);
732 case V4L2_CID_CONTRAST
:
733 return v4l2_ctrl_query_fill(qc
, 0x0, 0xff, 1, 0x80);
734 case V4L2_CID_SATURATION
:
735 return v4l2_ctrl_query_fill(qc
, 0x0, 0xff, 1, 0x80);
737 return v4l2_ctrl_query_fill(qc
, 0x0, 0xff, 1, 0x80);
738 case V4L2_CID_SHARPNESS
:
739 return v4l2_ctrl_query_fill(qc
, 0x0, 0xff, 1, 0x80);
740 case V4L2_CID_MPEG_AUDIO_ENCODING
:
741 return v4l2_ctrl_query_fill(
742 qc
, V4L2_MPEG_AUDIO_ENCODING_AAC
,
743 ac3
? V4L2_MPEG_AUDIO_ENCODING_AC3
744 : V4L2_MPEG_AUDIO_ENCODING_AAC
,
745 1, V4L2_MPEG_AUDIO_ENCODING_AAC
);
746 case V4L2_CID_MPEG_VIDEO_ENCODING
:
747 return v4l2_ctrl_query_fill(
748 qc
, V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC
,
749 V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC
, 1,
750 V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC
);
752 /* case V4L2_CID_MPEG_VIDEO_? maybe keyframe interval: */
753 /* return v4l2_ctrl_query_fill(qc, 0, 128, 128, 0); */
754 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE
:
755 return v4l2_ctrl_query_fill(
756 qc
, V4L2_MPEG_VIDEO_BITRATE_MODE_VBR
,
757 V4L2_MPEG_VIDEO_BITRATE_MODE_CBR
, 1,
758 V4L2_MPEG_VIDEO_BITRATE_MODE_CBR
);
760 case V4L2_CID_MPEG_VIDEO_BITRATE
:
761 return v4l2_ctrl_query_fill(qc
, 1000000, 13500000, 100000,
763 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK
:
764 err
= v4l2_ctrl_query_fill(qc
, 1100000, 20200000, 100000,
766 if (!err
&& opt
->bitrate_mode
== HDPVR_CONSTANT
)
767 qc
->flags
|= V4L2_CTRL_FLAG_INACTIVE
;
774 static int vidioc_queryctrl(struct file
*file
, void *private_data
,
775 struct v4l2_queryctrl
*qc
)
777 struct hdpvr_fh
*fh
= file
->private_data
;
778 struct hdpvr_device
*dev
= fh
->dev
;
782 memset(qc
, 0, sizeof(*qc
));
784 next
= !!(id
& V4L2_CTRL_FLAG_NEXT_CTRL
);
785 qc
->id
= id
& ~V4L2_CTRL_FLAG_NEXT_CTRL
;
787 for (i
= 0; i
< ARRAY_SIZE(supported_v4l2_ctrls
); i
++) {
789 if (qc
->id
< supported_v4l2_ctrls
[i
])
790 qc
->id
= supported_v4l2_ctrls
[i
];
795 if (qc
->id
== supported_v4l2_ctrls
[i
])
796 return fill_queryctrl(&dev
->options
, qc
,
797 dev
->flags
& HDPVR_FLAG_AC3_CAP
);
799 if (qc
->id
< supported_v4l2_ctrls
[i
])
806 static int vidioc_g_ctrl(struct file
*file
, void *private_data
,
807 struct v4l2_control
*ctrl
)
809 struct hdpvr_fh
*fh
= file
->private_data
;
810 struct hdpvr_device
*dev
= fh
->dev
;
813 case V4L2_CID_BRIGHTNESS
:
814 ctrl
->value
= dev
->options
.brightness
;
816 case V4L2_CID_CONTRAST
:
817 ctrl
->value
= dev
->options
.contrast
;
819 case V4L2_CID_SATURATION
:
820 ctrl
->value
= dev
->options
.saturation
;
823 ctrl
->value
= dev
->options
.hue
;
825 case V4L2_CID_SHARPNESS
:
826 ctrl
->value
= dev
->options
.sharpness
;
834 static int vidioc_s_ctrl(struct file
*file
, void *private_data
,
835 struct v4l2_control
*ctrl
)
837 struct hdpvr_fh
*fh
= file
->private_data
;
838 struct hdpvr_device
*dev
= fh
->dev
;
842 case V4L2_CID_BRIGHTNESS
:
843 retval
= hdpvr_config_call(dev
, CTRL_BRIGHTNESS
, ctrl
->value
);
845 dev
->options
.brightness
= ctrl
->value
;
847 case V4L2_CID_CONTRAST
:
848 retval
= hdpvr_config_call(dev
, CTRL_CONTRAST
, ctrl
->value
);
850 dev
->options
.contrast
= ctrl
->value
;
852 case V4L2_CID_SATURATION
:
853 retval
= hdpvr_config_call(dev
, CTRL_SATURATION
, ctrl
->value
);
855 dev
->options
.saturation
= ctrl
->value
;
858 retval
= hdpvr_config_call(dev
, CTRL_HUE
, ctrl
->value
);
860 dev
->options
.hue
= ctrl
->value
;
862 case V4L2_CID_SHARPNESS
:
863 retval
= hdpvr_config_call(dev
, CTRL_SHARPNESS
, ctrl
->value
);
865 dev
->options
.sharpness
= ctrl
->value
;
875 static int hdpvr_get_ctrl(struct hdpvr_options
*opt
,
876 struct v4l2_ext_control
*ctrl
)
879 case V4L2_CID_MPEG_AUDIO_ENCODING
:
880 ctrl
->value
= opt
->audio_codec
;
882 case V4L2_CID_MPEG_VIDEO_ENCODING
:
883 ctrl
->value
= V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC
;
885 /* case V4L2_CID_MPEG_VIDEO_B_FRAMES: */
886 /* ctrl->value = (opt->gop_mode & 0x2) ? 0 : 128; */
888 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE
:
889 ctrl
->value
= opt
->bitrate_mode
== HDPVR_CONSTANT
890 ? V4L2_MPEG_VIDEO_BITRATE_MODE_CBR
891 : V4L2_MPEG_VIDEO_BITRATE_MODE_VBR
;
893 case V4L2_CID_MPEG_VIDEO_BITRATE
:
894 ctrl
->value
= opt
->bitrate
* 100000;
896 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK
:
897 ctrl
->value
= opt
->peak_bitrate
* 100000;
899 case V4L2_CID_MPEG_STREAM_TYPE
:
900 ctrl
->value
= V4L2_MPEG_STREAM_TYPE_MPEG2_TS
;
908 static int vidioc_g_ext_ctrls(struct file
*file
, void *priv
,
909 struct v4l2_ext_controls
*ctrls
)
911 struct hdpvr_fh
*fh
= file
->private_data
;
912 struct hdpvr_device
*dev
= fh
->dev
;
915 if (ctrls
->ctrl_class
== V4L2_CTRL_CLASS_MPEG
) {
916 for (i
= 0; i
< ctrls
->count
; i
++) {
917 struct v4l2_ext_control
*ctrl
= ctrls
->controls
+ i
;
919 err
= hdpvr_get_ctrl(&dev
->options
, ctrl
);
921 ctrls
->error_idx
= i
;
933 static int hdpvr_try_ctrl(struct v4l2_ext_control
*ctrl
, int ac3
)
938 case V4L2_CID_MPEG_AUDIO_ENCODING
:
939 if (ctrl
->value
== V4L2_MPEG_AUDIO_ENCODING_AAC
||
940 (ac3
&& ctrl
->value
== V4L2_MPEG_AUDIO_ENCODING_AC3
))
943 case V4L2_CID_MPEG_VIDEO_ENCODING
:
944 if (ctrl
->value
== V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC
)
947 /* case V4L2_CID_MPEG_VIDEO_B_FRAMES: */
948 /* if (ctrl->value == 0 || ctrl->value == 128) */
951 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE
:
952 if (ctrl
->value
== V4L2_MPEG_VIDEO_BITRATE_MODE_CBR
||
953 ctrl
->value
== V4L2_MPEG_VIDEO_BITRATE_MODE_VBR
)
956 case V4L2_CID_MPEG_VIDEO_BITRATE
:
958 uint bitrate
= ctrl
->value
/ 100000;
959 if (bitrate
>= 10 && bitrate
<= 135)
963 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK
:
965 uint peak_bitrate
= ctrl
->value
/ 100000;
966 if (peak_bitrate
>= 10 && peak_bitrate
<= 202)
970 case V4L2_CID_MPEG_STREAM_TYPE
:
971 if (ctrl
->value
== V4L2_MPEG_STREAM_TYPE_MPEG2_TS
)
980 static int vidioc_try_ext_ctrls(struct file
*file
, void *priv
,
981 struct v4l2_ext_controls
*ctrls
)
983 struct hdpvr_fh
*fh
= file
->private_data
;
984 struct hdpvr_device
*dev
= fh
->dev
;
987 if (ctrls
->ctrl_class
== V4L2_CTRL_CLASS_MPEG
) {
988 for (i
= 0; i
< ctrls
->count
; i
++) {
989 struct v4l2_ext_control
*ctrl
= ctrls
->controls
+ i
;
991 err
= hdpvr_try_ctrl(ctrl
,
992 dev
->flags
& HDPVR_FLAG_AC3_CAP
);
994 ctrls
->error_idx
= i
;
1005 static int hdpvr_set_ctrl(struct hdpvr_device
*dev
,
1006 struct v4l2_ext_control
*ctrl
)
1008 struct hdpvr_options
*opt
= &dev
->options
;
1012 case V4L2_CID_MPEG_AUDIO_ENCODING
:
1013 if (dev
->flags
& HDPVR_FLAG_AC3_CAP
) {
1014 opt
->audio_codec
= ctrl
->value
;
1015 ret
= hdpvr_set_audio(dev
, opt
->audio_input
,
1019 case V4L2_CID_MPEG_VIDEO_ENCODING
:
1021 /* case V4L2_CID_MPEG_VIDEO_B_FRAMES: */
1022 /* if (ctrl->value == 0 && !(opt->gop_mode & 0x2)) { */
1023 /* opt->gop_mode |= 0x2; */
1024 /* hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, */
1025 /* opt->gop_mode); */
1027 /* if (ctrl->value == 128 && opt->gop_mode & 0x2) { */
1028 /* opt->gop_mode &= ~0x2; */
1029 /* hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, */
1030 /* opt->gop_mode); */
1033 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE
:
1034 if (ctrl
->value
== V4L2_MPEG_VIDEO_BITRATE_MODE_CBR
&&
1035 opt
->bitrate_mode
!= HDPVR_CONSTANT
) {
1036 opt
->bitrate_mode
= HDPVR_CONSTANT
;
1037 hdpvr_config_call(dev
, CTRL_BITRATE_MODE_VALUE
,
1040 if (ctrl
->value
== V4L2_MPEG_VIDEO_BITRATE_MODE_VBR
&&
1041 opt
->bitrate_mode
== HDPVR_CONSTANT
) {
1042 opt
->bitrate_mode
= HDPVR_VARIABLE_AVERAGE
;
1043 hdpvr_config_call(dev
, CTRL_BITRATE_MODE_VALUE
,
1047 case V4L2_CID_MPEG_VIDEO_BITRATE
: {
1048 uint bitrate
= ctrl
->value
/ 100000;
1050 opt
->bitrate
= bitrate
;
1051 if (bitrate
>= opt
->peak_bitrate
)
1052 opt
->peak_bitrate
= bitrate
+1;
1054 hdpvr_set_bitrate(dev
);
1057 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK
: {
1058 uint peak_bitrate
= ctrl
->value
/ 100000;
1060 if (opt
->bitrate_mode
== HDPVR_CONSTANT
)
1063 if (opt
->bitrate
< peak_bitrate
) {
1064 opt
->peak_bitrate
= peak_bitrate
;
1065 hdpvr_set_bitrate(dev
);
1070 case V4L2_CID_MPEG_STREAM_TYPE
:
1078 static int vidioc_s_ext_ctrls(struct file
*file
, void *priv
,
1079 struct v4l2_ext_controls
*ctrls
)
1081 struct hdpvr_fh
*fh
= file
->private_data
;
1082 struct hdpvr_device
*dev
= fh
->dev
;
1085 if (ctrls
->ctrl_class
== V4L2_CTRL_CLASS_MPEG
) {
1086 for (i
= 0; i
< ctrls
->count
; i
++) {
1087 struct v4l2_ext_control
*ctrl
= ctrls
->controls
+ i
;
1089 err
= hdpvr_try_ctrl(ctrl
,
1090 dev
->flags
& HDPVR_FLAG_AC3_CAP
);
1092 ctrls
->error_idx
= i
;
1095 err
= hdpvr_set_ctrl(dev
, ctrl
);
1097 ctrls
->error_idx
= i
;
1108 static int vidioc_enum_fmt_vid_cap(struct file
*file
, void *private_data
,
1109 struct v4l2_fmtdesc
*f
)
1112 if (f
->index
!= 0 || f
->type
!= V4L2_BUF_TYPE_VIDEO_CAPTURE
)
1115 f
->flags
= V4L2_FMT_FLAG_COMPRESSED
;
1116 strncpy(f
->description
, "MPEG2-TS with AVC/AAC streams", 32);
1117 f
->pixelformat
= V4L2_PIX_FMT_MPEG
;
1122 static int vidioc_g_fmt_vid_cap(struct file
*file
, void *private_data
,
1123 struct v4l2_format
*f
)
1125 struct hdpvr_fh
*fh
= file
->private_data
;
1126 struct hdpvr_device
*dev
= fh
->dev
;
1127 struct hdpvr_video_info
*vid_info
;
1132 vid_info
= get_video_info(dev
);
1136 f
->type
= V4L2_BUF_TYPE_VIDEO_CAPTURE
;
1137 f
->fmt
.pix
.pixelformat
= V4L2_PIX_FMT_MPEG
;
1138 f
->fmt
.pix
.width
= vid_info
->width
;
1139 f
->fmt
.pix
.height
= vid_info
->height
;
1140 f
->fmt
.pix
.sizeimage
= dev
->bulk_in_size
;
1141 f
->fmt
.pix
.colorspace
= 0;
1142 f
->fmt
.pix
.bytesperline
= 0;
1143 f
->fmt
.pix
.field
= V4L2_FIELD_ANY
;
1149 static int vidioc_encoder_cmd(struct file
*filp
, void *priv
,
1150 struct v4l2_encoder_cmd
*a
)
1152 struct hdpvr_fh
*fh
= filp
->private_data
;
1153 struct hdpvr_device
*dev
= fh
->dev
;
1156 mutex_lock(&dev
->io_mutex
);
1158 memset(&a
->raw
, 0, sizeof(a
->raw
));
1160 case V4L2_ENC_CMD_START
:
1162 res
= hdpvr_start_streaming(dev
);
1164 case V4L2_ENC_CMD_STOP
:
1165 res
= hdpvr_stop_streaming(dev
);
1168 v4l2_dbg(MSG_INFO
, hdpvr_debug
, &dev
->v4l2_dev
,
1169 "Unsupported encoder cmd %d\n", a
->cmd
);
1172 mutex_unlock(&dev
->io_mutex
);
1176 static int vidioc_try_encoder_cmd(struct file
*filp
, void *priv
,
1177 struct v4l2_encoder_cmd
*a
)
1180 case V4L2_ENC_CMD_START
:
1181 case V4L2_ENC_CMD_STOP
:
1188 static const struct v4l2_ioctl_ops hdpvr_ioctl_ops
= {
1189 .vidioc_querycap
= vidioc_querycap
,
1190 .vidioc_s_std
= vidioc_s_std
,
1191 .vidioc_enum_input
= vidioc_enum_input
,
1192 .vidioc_g_input
= vidioc_g_input
,
1193 .vidioc_s_input
= vidioc_s_input
,
1194 .vidioc_enumaudio
= vidioc_enumaudio
,
1195 .vidioc_g_audio
= vidioc_g_audio
,
1196 .vidioc_s_audio
= vidioc_s_audio
,
1197 .vidioc_queryctrl
= vidioc_queryctrl
,
1198 .vidioc_g_ctrl
= vidioc_g_ctrl
,
1199 .vidioc_s_ctrl
= vidioc_s_ctrl
,
1200 .vidioc_g_ext_ctrls
= vidioc_g_ext_ctrls
,
1201 .vidioc_s_ext_ctrls
= vidioc_s_ext_ctrls
,
1202 .vidioc_try_ext_ctrls
= vidioc_try_ext_ctrls
,
1203 .vidioc_enum_fmt_vid_cap
= vidioc_enum_fmt_vid_cap
,
1204 .vidioc_g_fmt_vid_cap
= vidioc_g_fmt_vid_cap
,
1205 .vidioc_encoder_cmd
= vidioc_encoder_cmd
,
1206 .vidioc_try_encoder_cmd
= vidioc_try_encoder_cmd
,
1209 static void hdpvr_device_release(struct video_device
*vdev
)
1211 struct hdpvr_device
*dev
= video_get_drvdata(vdev
);
1214 mutex_lock(&dev
->io_mutex
);
1215 destroy_workqueue(dev
->workqueue
);
1216 mutex_unlock(&dev
->io_mutex
);
1218 v4l2_device_unregister(&dev
->v4l2_dev
);
1220 /* deregister I2C adapter */
1221 #if defined(CONFIG_I2C) || (CONFIG_I2C_MODULE)
1222 mutex_lock(&dev
->i2c_mutex
);
1223 i2c_del_adapter(&dev
->i2c_adapter
);
1224 mutex_unlock(&dev
->i2c_mutex
);
1225 #endif /* CONFIG_I2C */
1227 kfree(dev
->usbc_buf
);
1231 static const struct video_device hdpvr_video_template
= {
1232 /* .type = VFL_TYPE_GRABBER, */
1233 /* .type2 = VID_TYPE_CAPTURE | VID_TYPE_MPEG_ENCODER, */
1234 .fops
= &hdpvr_fops
,
1235 .release
= hdpvr_device_release
,
1236 .ioctl_ops
= &hdpvr_ioctl_ops
,
1238 V4L2_STD_NTSC
| V4L2_STD_SECAM
| V4L2_STD_PAL_B
|
1239 V4L2_STD_PAL_G
| V4L2_STD_PAL_H
| V4L2_STD_PAL_I
|
1240 V4L2_STD_PAL_D
| V4L2_STD_PAL_M
| V4L2_STD_PAL_N
|
1242 .current_norm
= V4L2_STD_NTSC
| V4L2_STD_PAL_M
|
1246 int hdpvr_register_videodev(struct hdpvr_device
*dev
, struct device
*parent
,
1249 /* setup and register video device */
1250 dev
->video_dev
= video_device_alloc();
1251 if (!dev
->video_dev
) {
1252 v4l2_err(&dev
->v4l2_dev
, "video_device_alloc() failed\n");
1256 *(dev
->video_dev
) = hdpvr_video_template
;
1257 strcpy(dev
->video_dev
->name
, "Hauppauge HD PVR");
1258 dev
->video_dev
->parent
= parent
;
1259 video_set_drvdata(dev
->video_dev
, dev
);
1261 if (video_register_device(dev
->video_dev
, VFL_TYPE_GRABBER
, devnum
)) {
1262 v4l2_err(&dev
->v4l2_dev
, "video_device registration failed\n");