[media] zoran: remove V4L1 compat code and zoran custom ioctls
All the functionality is now handled through V4L2. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil
Mauro Carvalho Chehab
parent
08af245de0
commit
ad1ecf8639
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@ -322,76 +322,11 @@ your IRQs and make sure the card has its own interrupts.
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4. Programming interface
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This driver conforms to video4linux and video4linux2, both can be used to
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use the driver. Since video4linux didn't provide adequate calls to fully
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use the cards' features, we've introduced several programming extensions,
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which are currently officially accepted in the 2.4.x branch of the kernel.
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These extensions are known as the v4l/mjpeg extensions. See zoran.h for
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details (structs/ioctls).
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Information - video4linux:
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http://linux.bytesex.org/v4l2/API.html
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Documentation/video4linux/API.html
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/usr/include/linux/videodev.h
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Information - video4linux/mjpeg extensions:
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./zoran.h
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(also see below)
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Information - video4linux2:
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http://linuxtv.org
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http://v4l2spec.bytesex.org/
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/usr/include/linux/videodev2.h
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More information on the video4linux/mjpeg extensions, by Serguei
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Miridonovi and Rainer Johanni:
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--
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The ioctls for that interface are as follows:
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BUZIOC_G_PARAMS
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BUZIOC_S_PARAMS
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Get and set the parameters of the buz. The user should always do a
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BUZIOC_G_PARAMS (with a struct buz_params) to obtain the default
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settings, change what he likes and then make a BUZIOC_S_PARAMS call.
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BUZIOC_REQBUFS
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Before being able to capture/playback, the user has to request
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the buffers he is wanting to use. Fill the structure
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zoran_requestbuffers with the size (recommended: 256*1024) and
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the number (recommended 32 up to 256). There are no such restrictions
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as for the Video for Linux buffers, you should LEAVE SUFFICIENT
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MEMORY for your system however, else strange things will happen ....
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On return, the zoran_requestbuffers structure contains number and
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size of the actually allocated buffers.
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You should use these numbers for doing a mmap of the buffers
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into the user space.
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The BUZIOC_REQBUFS ioctl also makes it happen, that the next mmap
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maps the MJPEG buffer instead of the V4L buffers.
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BUZIOC_QBUF_CAPT
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BUZIOC_QBUF_PLAY
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Queue a buffer for capture or playback. The first call also starts
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streaming capture. When streaming capture is going on, you may
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only queue further buffers or issue syncs until streaming
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capture is switched off again with a argument of -1 to
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a BUZIOC_QBUF_CAPT/BUZIOC_QBUF_PLAY ioctl.
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BUZIOC_SYNC
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Issue this ioctl when all buffers are queued. This ioctl will
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block until the first buffer becomes free for saving its
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data to disk (after BUZIOC_QBUF_CAPT) or for reuse (after BUZIOC_QBUF_PLAY).
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BUZIOC_G_STATUS
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Get the status of the input lines (video source connected/norm).
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This driver conforms to video4linux2. Support for V4L1 and for the custom
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zoran ioctls has been removed in kernel 2.6.38.
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For programming example, please, look at lavrec.c and lavplay.c code in
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lavtools-1.2p2 package (URL: http://www.cicese.mx/)
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and the 'examples' directory in the original Buz driver distribution.
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the MJPEG-tools (http://mjpeg.sf.net/).
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Additional notes for software developers:
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@ -402,9 +337,6 @@ Additional notes for software developers:
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standard is "more constant" for current country than geometry
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settings of a variety of TV capture cards which may work in ITU or
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square pixel format.
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--
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Please note that lavplay/lavrec are also included in the MJPEG-tools
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(http://mjpeg.sf.net/).
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===========================
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@ -33,15 +33,6 @@
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#include <media/v4l2-device.h>
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#define ZORAN_VIDMODE_PAL 0
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#define ZORAN_VIDMODE_NTSC 1
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#define ZORAN_VIDMODE_SECAM 2
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struct zoran_requestbuffers {
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unsigned long count; /* Number of buffers for MJPEG grabbing */
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unsigned long size; /* Size PER BUFFER in bytes */
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};
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struct zoran_sync {
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unsigned long frame; /* number of buffer that has been free'd */
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unsigned long length; /* number of code bytes in buffer (capture only) */
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@ -49,102 +40,6 @@ struct zoran_sync {
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struct timeval timestamp; /* timestamp */
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};
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struct zoran_status {
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int input; /* Input channel, has to be set prior to BUZIOC_G_STATUS */
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int signal; /* Returned: 1 if valid video signal detected */
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int norm; /* Returned: ZORAN_VIDMODE_PAL or ZORAN_VIDMODE_NTSC */
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int color; /* Returned: 1 if color signal detected */
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};
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struct zoran_params {
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/* The following parameters can only be queried */
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int major_version; /* Major version number of driver */
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int minor_version; /* Minor version number of driver */
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/* Main control parameters */
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int input; /* Input channel: 0 = Composite, 1 = S-VHS */
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int norm; /* Norm: ZORAN_VIDMODE_PAL or ZORAN_VIDMODE_NTSC */
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int decimation; /* decimation of captured video,
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* enlargement of video played back.
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* Valid values are 1, 2, 4 or 0.
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* 0 is a special value where the user
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* has full control over video scaling */
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/* The following parameters only have to be set if decimation==0,
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* for other values of decimation they provide the data how the image is captured */
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int HorDcm; /* Horizontal decimation: 1, 2 or 4 */
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int VerDcm; /* Vertical decimation: 1 or 2 */
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int TmpDcm; /* Temporal decimation: 1 or 2,
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* if TmpDcm==2 in capture every second frame is dropped,
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* in playback every frame is played twice */
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int field_per_buff; /* Number of fields per buffer: 1 or 2 */
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int img_x; /* start of image in x direction */
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int img_y; /* start of image in y direction */
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int img_width; /* image width BEFORE decimation,
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* must be a multiple of HorDcm*16 */
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int img_height; /* image height BEFORE decimation,
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* must be a multiple of VerDcm*8 */
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/* --- End of parameters for decimation==0 only --- */
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/* JPEG control parameters */
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int quality; /* Measure for quality of compressed images.
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* Scales linearly with the size of the compressed images.
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* Must be beetween 0 and 100, 100 is a compression
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* ratio of 1:4 */
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int odd_even; /* Which field should come first ??? */
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int APPn; /* Number of APP segment to be written, must be 0..15 */
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int APP_len; /* Length of data in JPEG APPn segment */
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char APP_data[60]; /* Data in the JPEG APPn segment. */
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int COM_len; /* Length of data in JPEG COM segment */
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char COM_data[60]; /* Data in JPEG COM segment */
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unsigned long jpeg_markers; /* Which markers should go into the JPEG output.
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* Unless you exactly know what you do, leave them untouched.
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* Inluding less markers will make the resulting code
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* smaller, but there will be fewer applications
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* which can read it.
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* The presence of the APP and COM marker is
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* influenced by APP0_len and COM_len ONLY! */
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#define JPEG_MARKER_DHT (1<<3) /* Define Huffman Tables */
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#define JPEG_MARKER_DQT (1<<4) /* Define Quantization Tables */
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#define JPEG_MARKER_DRI (1<<5) /* Define Restart Interval */
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#define JPEG_MARKER_COM (1<<6) /* Comment segment */
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#define JPEG_MARKER_APP (1<<7) /* App segment, driver will allways use APP0 */
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int VFIFO_FB; /* Flag for enabling Video Fifo Feedback.
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* If this flag is turned on and JPEG decompressing
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* is going to the screen, the decompress process
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* is stopped every time the Video Fifo is full.
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* This enables a smooth decompress to the screen
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* but the video output signal will get scrambled */
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/* Misc */
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char reserved[312]; /* Makes 512 bytes for this structure */
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};
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/*
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Private IOCTL to set up for displaying MJPEG
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*/
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#define BUZIOC_G_PARAMS _IOR ('v', BASE_VIDIOC_PRIVATE+0, struct zoran_params)
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#define BUZIOC_S_PARAMS _IOWR('v', BASE_VIDIOC_PRIVATE+1, struct zoran_params)
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#define BUZIOC_REQBUFS _IOWR('v', BASE_VIDIOC_PRIVATE+2, struct zoran_requestbuffers)
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#define BUZIOC_QBUF_CAPT _IOW ('v', BASE_VIDIOC_PRIVATE+3, int)
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#define BUZIOC_QBUF_PLAY _IOW ('v', BASE_VIDIOC_PRIVATE+4, int)
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#define BUZIOC_SYNC _IOR ('v', BASE_VIDIOC_PRIVATE+5, struct zoran_sync)
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#define BUZIOC_G_STATUS _IOWR('v', BASE_VIDIOC_PRIVATE+6, struct zoran_status)
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#ifdef __KERNEL__
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#define MAJOR_VERSION 0 /* driver major version */
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#define MINOR_VERSION 10 /* driver minor version */
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@ -507,6 +402,4 @@ static inline struct zoran *to_zoran(struct v4l2_device *v4l2_dev)
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#define btor(dat,adr) btwrite((dat) | btread(adr), adr)
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#define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
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#endif /* __kernel__ */
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#endif
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@ -943,7 +943,7 @@ zoran_open_init_params (struct zoran *zr)
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memset(zr->jpg_settings.jpg_comp.COM_data, 0,
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sizeof(zr->jpg_settings.jpg_comp.COM_data));
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zr->jpg_settings.jpg_comp.jpeg_markers =
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JPEG_MARKER_DHT | JPEG_MARKER_DQT;
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V4L2_JPEG_MARKER_DHT | V4L2_JPEG_MARKER_DQT;
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i = zoran_check_jpg_settings(zr, &zr->jpg_settings, 0);
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if (i)
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dprintk(1, KERN_ERR "%s: %s internal error\n",
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@ -1528,323 +1528,6 @@ zoran_set_input (struct zoran *zr,
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* ioctl routine
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*/
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#ifdef CONFIG_VIDEO_V4L1_COMPAT
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static long zoran_default(struct file *file, void *__fh, int cmd, void *arg)
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{
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struct zoran_fh *fh = __fh;
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struct zoran *zr = fh->zr;
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struct zoran_jpg_settings settings;
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switch (cmd) {
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case BUZIOC_G_PARAMS:
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{
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struct zoran_params *bparams = arg;
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dprintk(3, KERN_DEBUG "%s: BUZIOC_G_PARAMS\n", ZR_DEVNAME(zr));
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memset(bparams, 0, sizeof(struct zoran_params));
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bparams->major_version = MAJOR_VERSION;
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bparams->minor_version = MINOR_VERSION;
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mutex_lock(&zr->resource_lock);
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if (zr->norm & V4L2_STD_NTSC)
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bparams->norm = ZORAN_VIDMODE_NTSC;
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else if (zr->norm & V4L2_STD_SECAM)
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bparams->norm = ZORAN_VIDMODE_SECAM;
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else
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bparams->norm = ZORAN_VIDMODE_PAL;
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bparams->input = zr->input;
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bparams->decimation = fh->jpg_settings.decimation;
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bparams->HorDcm = fh->jpg_settings.HorDcm;
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bparams->VerDcm = fh->jpg_settings.VerDcm;
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bparams->TmpDcm = fh->jpg_settings.TmpDcm;
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bparams->field_per_buff = fh->jpg_settings.field_per_buff;
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bparams->img_x = fh->jpg_settings.img_x;
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bparams->img_y = fh->jpg_settings.img_y;
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bparams->img_width = fh->jpg_settings.img_width;
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bparams->img_height = fh->jpg_settings.img_height;
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bparams->odd_even = fh->jpg_settings.odd_even;
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bparams->quality = fh->jpg_settings.jpg_comp.quality;
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bparams->APPn = fh->jpg_settings.jpg_comp.APPn;
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bparams->APP_len = fh->jpg_settings.jpg_comp.APP_len;
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memcpy(bparams->APP_data,
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fh->jpg_settings.jpg_comp.APP_data,
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sizeof(bparams->APP_data));
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bparams->COM_len = zr->jpg_settings.jpg_comp.COM_len;
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memcpy(bparams->COM_data,
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fh->jpg_settings.jpg_comp.COM_data,
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sizeof(bparams->COM_data));
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bparams->jpeg_markers =
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fh->jpg_settings.jpg_comp.jpeg_markers;
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mutex_unlock(&zr->resource_lock);
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bparams->VFIFO_FB = 0;
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return 0;
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}
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case BUZIOC_S_PARAMS:
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{
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struct zoran_params *bparams = arg;
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int res = 0;
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dprintk(3, KERN_DEBUG "%s: BUZIOC_S_PARAMS\n", ZR_DEVNAME(zr));
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settings.decimation = bparams->decimation;
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settings.HorDcm = bparams->HorDcm;
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settings.VerDcm = bparams->VerDcm;
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settings.TmpDcm = bparams->TmpDcm;
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settings.field_per_buff = bparams->field_per_buff;
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settings.img_x = bparams->img_x;
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settings.img_y = bparams->img_y;
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settings.img_width = bparams->img_width;
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settings.img_height = bparams->img_height;
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settings.odd_even = bparams->odd_even;
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settings.jpg_comp.quality = bparams->quality;
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settings.jpg_comp.APPn = bparams->APPn;
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settings.jpg_comp.APP_len = bparams->APP_len;
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memcpy(settings.jpg_comp.APP_data, bparams->APP_data,
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sizeof(bparams->APP_data));
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settings.jpg_comp.COM_len = bparams->COM_len;
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memcpy(settings.jpg_comp.COM_data, bparams->COM_data,
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sizeof(bparams->COM_data));
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settings.jpg_comp.jpeg_markers = bparams->jpeg_markers;
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mutex_lock(&zr->resource_lock);
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if (zr->codec_mode != BUZ_MODE_IDLE) {
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dprintk(1,
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KERN_ERR
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"%s: BUZIOC_S_PARAMS called, but Buz in capture/playback mode\n",
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ZR_DEVNAME(zr));
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res = -EINVAL;
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goto sparams_unlock_and_return;
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}
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/* Check the params first before overwriting our
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* nternal values */
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if (zoran_check_jpg_settings(zr, &settings, 0)) {
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res = -EINVAL;
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goto sparams_unlock_and_return;
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}
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fh->jpg_settings = settings;
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sparams_unlock_and_return:
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mutex_unlock(&zr->resource_lock);
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return res;
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}
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case BUZIOC_REQBUFS:
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{
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struct zoran_requestbuffers *breq = arg;
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int res = 0;
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dprintk(3,
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KERN_DEBUG
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"%s: BUZIOC_REQBUFS - count=%lu, size=%lu\n",
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ZR_DEVNAME(zr), breq->count, breq->size);
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/* Enforce reasonable lower and upper limits */
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if (breq->count < 4)
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breq->count = 4; /* Could be choosen smaller */
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if (breq->count > jpg_nbufs)
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breq->count = jpg_nbufs;
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breq->size = PAGE_ALIGN(breq->size);
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if (breq->size < 8192)
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breq->size = 8192; /* Arbitrary */
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/* breq->size is limited by 1 page for the stat_com
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* tables to a Maximum of 2 MB */
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if (breq->size > jpg_bufsize)
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breq->size = jpg_bufsize;
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mutex_lock(&zr->resource_lock);
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if (fh->buffers.allocated) {
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dprintk(1,
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KERN_ERR
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"%s: BUZIOC_REQBUFS - buffers already allocated\n",
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ZR_DEVNAME(zr));
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res = -EBUSY;
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goto jpgreqbuf_unlock_and_return;
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}
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/* The next mmap will map the MJPEG buffers - could
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* also be *_PLAY, but it doesn't matter here */
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map_mode_jpg(fh, 0);
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fh->buffers.num_buffers = breq->count;
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fh->buffers.buffer_size = breq->size;
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if (jpg_fbuffer_alloc(fh)) {
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res = -ENOMEM;
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goto jpgreqbuf_unlock_and_return;
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}
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jpgreqbuf_unlock_and_return:
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mutex_unlock(&zr->resource_lock);
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return res;
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}
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case BUZIOC_QBUF_CAPT:
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{
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int *frame = arg, res;
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dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_CAPT - frame=%d\n",
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ZR_DEVNAME(zr), *frame);
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mutex_lock(&zr->resource_lock);
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res = jpg_qbuf(fh, *frame, BUZ_MODE_MOTION_COMPRESS);
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mutex_unlock(&zr->resource_lock);
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return res;
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}
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case BUZIOC_QBUF_PLAY:
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{
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int *frame = arg, res;
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dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_PLAY - frame=%d\n",
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ZR_DEVNAME(zr), *frame);
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mutex_lock(&zr->resource_lock);
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res = jpg_qbuf(fh, *frame, BUZ_MODE_MOTION_DECOMPRESS);
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mutex_unlock(&zr->resource_lock);
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return res;
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}
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case BUZIOC_SYNC:
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{
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struct zoran_sync *bsync = arg;
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int res;
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||||
|
||||
dprintk(3, KERN_DEBUG "%s: BUZIOC_SYNC\n", ZR_DEVNAME(zr));
|
||||
|
||||
mutex_lock(&zr->resource_lock);
|
||||
|
||||
if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
|
||||
dprintk(2, KERN_WARNING
|
||||
"%s: %s - not in jpg capture mode\n",
|
||||
ZR_DEVNAME(zr), __func__);
|
||||
res = -EINVAL;
|
||||
} else {
|
||||
res = jpg_sync(fh, bsync);
|
||||
}
|
||||
mutex_unlock(&zr->resource_lock);
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
case BUZIOC_G_STATUS:
|
||||
{
|
||||
struct zoran_status *bstat = arg;
|
||||
int status = 0, res = 0;
|
||||
v4l2_std_id norm;
|
||||
|
||||
dprintk(3, KERN_DEBUG "%s: BUZIOC_G_STATUS\n", ZR_DEVNAME(zr));
|
||||
|
||||
if (zr->codec_mode != BUZ_MODE_IDLE) {
|
||||
dprintk(1,
|
||||
KERN_ERR
|
||||
"%s: BUZIOC_G_STATUS called but Buz in capture/playback mode\n",
|
||||
ZR_DEVNAME(zr));
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
mutex_lock(&zr->resource_lock);
|
||||
|
||||
if (zr->codec_mode != BUZ_MODE_IDLE) {
|
||||
dprintk(1,
|
||||
KERN_ERR
|
||||
"%s: BUZIOC_G_STATUS called, but Buz in capture/playback mode\n",
|
||||
ZR_DEVNAME(zr));
|
||||
res = -EINVAL;
|
||||
goto gstat_unlock_and_return;
|
||||
}
|
||||
|
||||
decoder_call(zr, video, s_routing,
|
||||
zr->card.input[bstat->input].muxsel, 0, 0);
|
||||
|
||||
/* sleep 1 second */
|
||||
ssleep(1);
|
||||
|
||||
/* Get status of video decoder */
|
||||
decoder_call(zr, video, querystd, &norm);
|
||||
decoder_call(zr, video, g_input_status, &status);
|
||||
|
||||
/* restore previous input and norm */
|
||||
decoder_call(zr, video, s_routing,
|
||||
zr->card.input[zr->input].muxsel, 0, 0);
|
||||
gstat_unlock_and_return:
|
||||
mutex_unlock(&zr->resource_lock);
|
||||
|
||||
if (!res) {
|
||||
bstat->signal =
|
||||
(status & V4L2_IN_ST_NO_SIGNAL) ? 0 : 1;
|
||||
if (norm & V4L2_STD_NTSC)
|
||||
bstat->norm = ZORAN_VIDMODE_NTSC;
|
||||
else if (norm & V4L2_STD_SECAM)
|
||||
bstat->norm = ZORAN_VIDMODE_SECAM;
|
||||
else
|
||||
bstat->norm = ZORAN_VIDMODE_PAL;
|
||||
|
||||
bstat->color =
|
||||
(status & V4L2_IN_ST_NO_COLOR) ? 0 : 1;
|
||||
}
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
static int zoran_vidiocgmbuf(struct file *file, void *__fh, struct video_mbuf *vmbuf)
|
||||
{
|
||||
struct zoran_fh *fh = __fh;
|
||||
struct zoran *zr = fh->zr;
|
||||
int i, res = 0;
|
||||
|
||||
|
||||
mutex_lock(&zr->resource_lock);
|
||||
|
||||
if (fh->buffers.allocated) {
|
||||
dprintk(1,
|
||||
KERN_ERR
|
||||
"%s: VIDIOCGMBUF - buffers already allocated\n",
|
||||
ZR_DEVNAME(zr));
|
||||
res = -EINVAL;
|
||||
goto v4l1reqbuf_unlock_and_return;
|
||||
}
|
||||
|
||||
/* The next mmap will map the V4L buffers */
|
||||
map_mode_raw(fh);
|
||||
|
||||
if (v4l_fbuffer_alloc(fh)) {
|
||||
res = -ENOMEM;
|
||||
goto v4l1reqbuf_unlock_and_return;
|
||||
}
|
||||
|
||||
vmbuf->size = fh->buffers.num_buffers * fh->buffers.buffer_size;
|
||||
vmbuf->frames = fh->buffers.num_buffers;
|
||||
for (i = 0; i < vmbuf->frames; i++)
|
||||
vmbuf->offsets[i] = i * fh->buffers.buffer_size;
|
||||
|
||||
v4l1reqbuf_unlock_and_return:
|
||||
mutex_unlock(&zr->resource_lock);
|
||||
|
||||
return res;
|
||||
}
|
||||
#endif
|
||||
|
||||
static int zoran_querycap(struct file *file, void *__fh, struct v4l2_capability *cap)
|
||||
{
|
||||
struct zoran_fh *fh = __fh;
|
||||
|
|
@ -3364,10 +3047,6 @@ static const struct v4l2_ioctl_ops zoran_ioctl_ops = {
|
|||
.vidioc_queryctrl = zoran_queryctrl,
|
||||
.vidioc_s_ctrl = zoran_s_ctrl,
|
||||
.vidioc_g_ctrl = zoran_g_ctrl,
|
||||
#ifdef CONFIG_VIDEO_V4L1_COMPAT
|
||||
.vidioc_default = zoran_default,
|
||||
.vidiocgmbuf = zoran_vidiocgmbuf,
|
||||
#endif
|
||||
};
|
||||
|
||||
/* please use zr->resource_lock consistently and kill this wrapper */
|
||||
|
|
|
|||
Reference in New Issue