522 lines
16 KiB
C
522 lines
16 KiB
C
/*
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* zoran - Iomega Buz driver
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*
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* Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de>
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*
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* based on
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*
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* zoran.0.0.3 Copyright (C) 1998 Dave Perks <dperks@ibm.net>
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*
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* and
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*
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* bttv - Bt848 frame grabber driver
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* Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de)
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* & Marcus Metzler (mocm@thp.uni-koeln.de)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef _BUZ_H_
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#define _BUZ_H_
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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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unsigned long seq; /* frame sequence number */
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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: VIDEO_MODE_PAL or VIDEO_MODE_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: VIDEO_MODE_PAL or VIDEO_MODE_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 aplications
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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_VIDIOCPRIVATE+0, struct zoran_params)
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#define BUZIOC_S_PARAMS _IOWR('v', BASE_VIDIOCPRIVATE+1, struct zoran_params)
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#define BUZIOC_REQBUFS _IOWR('v', BASE_VIDIOCPRIVATE+2, struct zoran_requestbuffers)
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#define BUZIOC_QBUF_CAPT _IOW ('v', BASE_VIDIOCPRIVATE+3, int)
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#define BUZIOC_QBUF_PLAY _IOW ('v', BASE_VIDIOCPRIVATE+4, int)
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#define BUZIOC_SYNC _IOR ('v', BASE_VIDIOCPRIVATE+5, struct zoran_sync)
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#define BUZIOC_G_STATUS _IOWR('v', BASE_VIDIOCPRIVATE+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 9 /* driver minor version */
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#define RELEASE_VERSION 5 /* release version */
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#define ZORAN_NAME "ZORAN" /* name of the device */
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#define ZR_DEVNAME(zr) ((zr)->name)
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#define BUZ_MAX_WIDTH (zr->timing->Wa)
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#define BUZ_MAX_HEIGHT (zr->timing->Ha)
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#define BUZ_MIN_WIDTH 32 /* never display less than 32 pixels */
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#define BUZ_MIN_HEIGHT 24 /* never display less than 24 rows */
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#define BUZ_NUM_STAT_COM 4
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#define BUZ_MASK_STAT_COM 3
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#define BUZ_MAX_FRAME 256 /* Must be a power of 2 */
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#define BUZ_MASK_FRAME 255 /* Must be BUZ_MAX_FRAME-1 */
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#define BUZ_MAX_INPUT 16
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#if VIDEO_MAX_FRAME <= 32
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# define V4L_MAX_FRAME 32
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#elif VIDEO_MAX_FRAME <= 64
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# define V4L_MAX_FRAME 64
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#else
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# error "Too many video frame buffers to handle"
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#endif
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#define V4L_MASK_FRAME (V4L_MAX_FRAME - 1)
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#define MAX_KMALLOC_MEM (128*1024)
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#include "zr36057.h"
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enum card_type {
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UNKNOWN = -1,
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/* Pinnacle/Miro */
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DC10_old, /* DC30 like */
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DC10_new, /* DC10plus like */
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DC10plus,
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DC30,
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DC30plus,
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/* Linux Media Labs */
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LML33,
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LML33R10,
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/* Iomega */
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BUZ,
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/* AverMedia */
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AVS6EYES,
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/* total number of cards */
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NUM_CARDS
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};
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enum zoran_codec_mode {
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BUZ_MODE_IDLE, /* nothing going on */
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BUZ_MODE_MOTION_COMPRESS, /* grabbing frames */
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BUZ_MODE_MOTION_DECOMPRESS, /* playing frames */
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BUZ_MODE_STILL_COMPRESS, /* still frame conversion */
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BUZ_MODE_STILL_DECOMPRESS /* still frame conversion */
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};
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enum zoran_buffer_state {
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BUZ_STATE_USER, /* buffer is owned by application */
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BUZ_STATE_PEND, /* buffer is queued in pend[] ready to feed to I/O */
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BUZ_STATE_DMA, /* buffer is queued in dma[] for I/O */
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BUZ_STATE_DONE /* buffer is ready to return to application */
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};
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enum zoran_map_mode {
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ZORAN_MAP_MODE_RAW,
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ZORAN_MAP_MODE_JPG_REC,
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#define ZORAN_MAP_MODE_JPG ZORAN_MAP_MODE_JPG_REC
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ZORAN_MAP_MODE_JPG_PLAY,
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};
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enum gpio_type {
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GPIO_JPEG_SLEEP = 0,
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GPIO_JPEG_RESET,
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GPIO_JPEG_FRAME,
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GPIO_VID_DIR,
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GPIO_VID_EN,
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GPIO_VID_RESET,
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GPIO_CLK_SEL1,
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GPIO_CLK_SEL2,
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GPIO_MAX,
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};
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enum gpcs_type {
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GPCS_JPEG_RESET = 0,
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GPCS_JPEG_START,
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GPCS_MAX,
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};
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struct zoran_format {
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char *name;
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int palette;
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__u32 fourcc;
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int colorspace;
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int depth;
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__u32 flags;
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};
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/* flags */
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#define ZORAN_FORMAT_COMPRESSED 1<<0
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#define ZORAN_FORMAT_OVERLAY 1<<1
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#define ZORAN_FORMAT_CAPTURE 1<<2
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#define ZORAN_FORMAT_PLAYBACK 1<<3
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/* overlay-settings */
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struct zoran_overlay_settings {
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int is_set;
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int x, y, width, height; /* position */
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int clipcount; /* position and number of clips */
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const struct zoran_format *format; /* overlay format */
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};
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/* v4l-capture settings */
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struct zoran_v4l_settings {
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int width, height, bytesperline; /* capture size */
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const struct zoran_format *format; /* capture format */
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};
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/* whoops, this one is undeclared if !v4l2 */
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#ifndef CONFIG_VIDEO_V4L2
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struct v4l2_jpegcompression {
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int quality;
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int APPn;
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int APP_len;
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char APP_data[60];
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int COM_len;
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char COM_data[60];
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__u32 jpeg_markers;
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__u8 reserved[116];
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};
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#endif
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/* jpg-capture/-playback settings */
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struct zoran_jpg_settings {
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int decimation; /* this bit is used to set everything to default */
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int HorDcm, VerDcm, TmpDcm; /* capture decimation settings (TmpDcm=1 means both fields) */
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int field_per_buff, odd_even; /* field-settings (odd_even=1 (+TmpDcm=1) means top-field-first) */
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int img_x, img_y, img_width, img_height; /* crop settings (subframe capture) */
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struct v4l2_jpegcompression jpg_comp; /* JPEG-specific capture settings */
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};
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struct zoran_mapping {
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struct file *file;
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int count;
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};
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struct zoran_jpg_buffer {
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struct zoran_mapping *map;
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u32 *frag_tab; /* addresses of frag table */
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u32 frag_tab_bus; /* same value cached to save time in ISR */
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enum zoran_buffer_state state; /* non-zero if corresponding buffer is in use in grab queue */
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struct zoran_sync bs; /* DONE: info to return to application */
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};
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struct zoran_v4l_buffer {
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struct zoran_mapping *map;
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char *fbuffer; /* virtual address of frame buffer */
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unsigned long fbuffer_phys; /* physical address of frame buffer */
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unsigned long fbuffer_bus; /* bus address of frame buffer */
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enum zoran_buffer_state state; /* state: unused/pending/done */
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struct zoran_sync bs; /* DONE: info to return to application */
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};
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enum zoran_lock_activity {
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ZORAN_FREE, /* free for use */
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ZORAN_ACTIVE, /* active but unlocked */
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ZORAN_LOCKED, /* locked */
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};
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/* buffer collections */
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struct zoran_jpg_struct {
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enum zoran_lock_activity active; /* feature currently in use? */
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struct zoran_jpg_buffer buffer[BUZ_MAX_FRAME]; /* buffers */
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int num_buffers, buffer_size;
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u8 allocated; /* Flag if buffers are allocated */
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u8 ready_to_be_freed; /* hack - see zoran_driver.c */
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u8 need_contiguous; /* Flag if contiguous buffers are needed */
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};
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struct zoran_v4l_struct {
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enum zoran_lock_activity active; /* feature currently in use? */
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struct zoran_v4l_buffer buffer[VIDEO_MAX_FRAME]; /* buffers */
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int num_buffers, buffer_size;
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u8 allocated; /* Flag if buffers are allocated */
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u8 ready_to_be_freed; /* hack - see zoran_driver.c */
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};
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struct zoran;
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/* zoran_fh contains per-open() settings */
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struct zoran_fh {
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struct zoran *zr;
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enum zoran_map_mode map_mode; /* Flag which bufferset will map by next mmap() */
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struct zoran_overlay_settings overlay_settings;
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u32 *overlay_mask; /* overlay mask */
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enum zoran_lock_activity overlay_active; /* feature currently in use? */
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struct zoran_v4l_settings v4l_settings; /* structure with a lot of things to play with */
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struct zoran_v4l_struct v4l_buffers; /* V4L buffers' info */
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struct zoran_jpg_settings jpg_settings; /* structure with a lot of things to play with */
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struct zoran_jpg_struct jpg_buffers; /* MJPEG buffers' info */
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};
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struct card_info {
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enum card_type type;
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char name[32];
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u16 i2c_decoder, i2c_encoder; /* I2C types */
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u16 video_vfe, video_codec; /* videocodec types */
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u16 audio_chip; /* audio type */
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u16 vendor_id, device_id; /* subsystem vendor/device ID */
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int inputs; /* number of video inputs */
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struct input {
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int muxsel;
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char name[32];
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} input[BUZ_MAX_INPUT];
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int norms;
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struct tvnorm *tvn[3]; /* supported TV norms */
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u32 jpeg_int; /* JPEG interrupt */
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u32 vsync_int; /* VSYNC interrupt */
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s8 gpio[GPIO_MAX];
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u8 gpcs[GPCS_MAX];
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struct vfe_polarity vfe_pol;
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u8 gpio_pol[GPIO_MAX];
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/* is the /GWS line conected? */
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u8 gws_not_connected;
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/* avs6eyes mux setting */
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u8 input_mux;
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void (*init) (struct zoran * zr);
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};
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struct zoran {
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struct video_device *video_dev;
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struct i2c_adapter i2c_adapter; /* */
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struct i2c_algo_bit_data i2c_algo; /* */
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u32 i2cbr;
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struct i2c_client *decoder; /* video decoder i2c client */
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struct i2c_client *encoder; /* video encoder i2c client */
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struct videocodec *codec; /* video codec */
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struct videocodec *vfe; /* video front end */
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struct mutex resource_lock; /* prevent evil stuff */
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u8 initialized; /* flag if zoran has been correctly initalized */
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int user; /* number of current users */
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struct card_info card;
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struct tvnorm *timing;
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unsigned short id; /* number of this device */
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char name[32]; /* name of this device */
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struct pci_dev *pci_dev; /* PCI device */
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unsigned char revision; /* revision of zr36057 */
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unsigned int zr36057_adr; /* bus address of IO mem returned by PCI BIOS */
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unsigned char __iomem *zr36057_mem;/* pointer to mapped IO memory */
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spinlock_t spinlock; /* Spinlock */
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/* Video for Linux parameters */
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int input, norm; /* card's norm and input - norm=VIDEO_MODE_* */
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int hue, saturation, contrast, brightness; /* Current picture params */
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struct video_buffer buffer; /* Current buffer params */
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struct zoran_overlay_settings overlay_settings;
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u32 *overlay_mask; /* overlay mask */
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enum zoran_lock_activity overlay_active; /* feature currently in use? */
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wait_queue_head_t v4l_capq;
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int v4l_overlay_active; /* Overlay grab is activated */
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int v4l_memgrab_active; /* Memory grab is activated */
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int v4l_grab_frame; /* Frame number being currently grabbed */
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#define NO_GRAB_ACTIVE (-1)
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unsigned long v4l_grab_seq; /* Number of frames grabbed */
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struct zoran_v4l_settings v4l_settings; /* structure with a lot of things to play with */
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/* V4L grab queue of frames pending */
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unsigned long v4l_pend_head;
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unsigned long v4l_pend_tail;
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unsigned long v4l_sync_tail;
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int v4l_pend[V4L_MAX_FRAME];
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struct zoran_v4l_struct v4l_buffers; /* V4L buffers' info */
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/* Buz MJPEG parameters */
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enum zoran_codec_mode codec_mode; /* status of codec */
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struct zoran_jpg_settings jpg_settings; /* structure with a lot of things to play with */
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wait_queue_head_t jpg_capq; /* wait here for grab to finish */
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/* grab queue counts/indices, mask with BUZ_MASK_STAT_COM before using as index */
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/* (dma_head - dma_tail) is number active in DMA, must be <= BUZ_NUM_STAT_COM */
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/* (value & BUZ_MASK_STAT_COM) corresponds to index in stat_com table */
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unsigned long jpg_que_head; /* Index where to put next buffer which is queued */
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unsigned long jpg_dma_head; /* Index of next buffer which goes into stat_com */
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unsigned long jpg_dma_tail; /* Index of last buffer in stat_com */
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unsigned long jpg_que_tail; /* Index of last buffer in queue */
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unsigned long jpg_seq_num; /* count of frames since grab/play started */
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unsigned long jpg_err_seq; /* last seq_num before error */
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unsigned long jpg_err_shift;
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unsigned long jpg_queued_num; /* count of frames queued since grab/play started */
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/* zr36057's code buffer table */
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u32 *stat_com; /* stat_com[i] is indexed by dma_head/tail & BUZ_MASK_STAT_COM */
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/* (value & BUZ_MASK_FRAME) corresponds to index in pend[] queue */
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int jpg_pend[BUZ_MAX_FRAME];
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/* array indexed by frame number */
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struct zoran_jpg_struct jpg_buffers; /* MJPEG buffers' info */
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/* Additional stuff for testing */
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#ifdef CONFIG_PROC_FS
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struct proc_dir_entry *zoran_proc;
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#else
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void *zoran_proc;
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|
#endif
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|
int testing;
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|
int jpeg_error;
|
|
int intr_counter_GIRQ1;
|
|
int intr_counter_GIRQ0;
|
|
int intr_counter_CodRepIRQ;
|
|
int intr_counter_JPEGRepIRQ;
|
|
int field_counter;
|
|
int IRQ1_in;
|
|
int IRQ1_out;
|
|
int JPEG_in;
|
|
int JPEG_out;
|
|
int JPEG_0;
|
|
int JPEG_1;
|
|
int END_event_missed;
|
|
int JPEG_missed;
|
|
int JPEG_error;
|
|
int num_errors;
|
|
int JPEG_max_missed;
|
|
int JPEG_min_missed;
|
|
|
|
u32 last_isr;
|
|
unsigned long frame_num;
|
|
|
|
wait_queue_head_t test_q;
|
|
};
|
|
|
|
/*The following should be done in more portable way. It depends on define
|
|
of _ALPHA_BUZ in the Makefile.*/
|
|
|
|
#ifdef _ALPHA_BUZ
|
|
#define btwrite(dat,adr) writel((dat), zr->zr36057_adr+(adr))
|
|
#define btread(adr) readl(zr->zr36057_adr+(adr))
|
|
#else
|
|
#define btwrite(dat,adr) writel((dat), zr->zr36057_mem+(adr))
|
|
#define btread(adr) readl(zr->zr36057_mem+(adr))
|
|
#endif
|
|
|
|
#define btand(dat,adr) btwrite((dat) & btread(adr), adr)
|
|
#define btor(dat,adr) btwrite((dat) | btread(adr), adr)
|
|
#define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
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|
|
|
#endif /* __kernel__ */
|
|
|
|
#endif
|