zoran.h

优龙2410linux2.6.8内核源代码

/* 
 * zoran - Iomega Buz driver
 *
 * Copyright (C) 1999 Rainer Johanni <[e-mail]>
 *
 * based on
 *
 * zoran.0.0.3 Copyright (C) 1998 Dave Perks <[e-mail]>
 *
 * and
 *
 * bttv - Bt848 frame grabber driver
 * Copyright (C) 1996,97,98 Ralph  Metzler ([e-mail])
 *                        & Marcus Metzler ([e-mail])
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef _BUZ_H_
#define _BUZ_H_

struct zoran_requestbuffers {
	unsigned long count;	/* Number of buffers for MJPEG grabbing */
	unsigned long size;	/* Size PER BUFFER in bytes */
};

struct zoran_sync {
	unsigned long frame;	/* number of buffer that has been free'd */
	unsigned long length;	/* number of code bytes in buffer (capture only) */
	unsigned long seq;	/* frame sequence number */
	struct timeval timestamp;	/* timestamp */
};

struct zoran_status {
	int input;		/* Input channel, has to be set prior to BUZIOC_G_STATUS */
	int signal;		/* Returned: 1 if valid video signal detected */
	int norm;		/* Returned: VIDEO_MODE_PAL or VIDEO_MODE_NTSC */
	int color;		/* Returned: 1 if color signal detected */
};

struct zoran_params {

	/* The following parameters can only be queried */

	int major_version;	/* Major version number of driver */
	int minor_version;	/* Minor version number of driver */

	/* Main control parameters */

	int input;		/* Input channel: 0 = Composite, 1 = S-VHS */
	int norm;		/* Norm: VIDEO_MODE_PAL or VIDEO_MODE_NTSC */
	int decimation;		/* decimation of captured video,
				 * enlargement of video played back.
				 * Valid values are 1, 2, 4 or 0.
				 * 0 is a special value where the user
				 * has full control over video scaling */

	/* The following parameters only have to be set if decimation==0,
	 * for other values of decimation they provide the data how the image is captured */

	int HorDcm;		/* Horizontal decimation: 1, 2 or 4 */
	int VerDcm;		/* Vertical decimation: 1 or 2 */
	int TmpDcm;		/* Temporal decimation: 1 or 2,
				 * if TmpDcm==2 in capture every second frame is dropped,
				 * in playback every frame is played twice */
	int field_per_buff;	/* Number of fields per buffer: 1 or 2 */
	int img_x;		/* start of image in x direction */
	int img_y;		/* start of image in y direction */
	int img_width;		/* image width BEFORE decimation,
				 * must be a multiple of HorDcm*16 */
	int img_height;		/* image height BEFORE decimation,
				 * must be a multiple of VerDcm*8 */

	/* --- End of parameters for decimation==0 only --- */

	/* JPEG control parameters */

	int quality;		/* Measure for quality of compressed images.
				 * Scales linearly with the size of the compressed images.
				 * Must be beetween 0 and 100, 100 is a compression
				 * ratio of 1:4 */

	int odd_even;		/* Which field should come first ??? */

	int APPn;		/* Number of APP segment to be written, must be 0..15 */
	int APP_len;		/* Length of data in JPEG APPn segment */
	char APP_data[60];	/* Data in the JPEG APPn segment. */

	int COM_len;		/* Length of data in JPEG COM segment */
	char COM_data[60];	/* Data in JPEG COM segment */

	unsigned long jpeg_markers;	/* Which markers should go into the JPEG output.
					 * Unless you exactly know what you do, leave them untouched.
					 * Inluding less markers will make the resulting code
					 * smaller, but there will be fewer aplications
					 * which can read it.
					 * The presence of the APP and COM marker is
					 * influenced by APP0_len and COM_len ONLY! */
#define JPEG_MARKER_DHT (1<<3)	/* Define Huffman Tables */
#define JPEG_MARKER_DQT (1<<4)	/* Define Quantization Tables */
#define JPEG_MARKER_DRI (1<<5)	/* Define Restart Interval */
#define JPEG_MARKER_COM (1<<6)	/* Comment segment */
#define JPEG_MARKER_APP (1<<7)	/* App segment, driver will allways use APP0 */

	int VFIFO_FB;		/* Flag for enabling Video Fifo Feedback.
				 * If this flag is turned on and JPEG decompressing
				 * is going to the screen, the decompress process
				 * is stopped every time the Video Fifo is full.
				 * This enables a smooth decompress to the screen
				 * but the video output signal will get scrambled */

	/* Misc */

	char reserved[312];	/* Makes 512 bytes for this structure */
};

/*
Private IOCTL to set up for displaying MJPEG
*/
#define BUZIOC_G_PARAMS       _IOR ('v', BASE_VIDIOCPRIVATE+0,  struct zoran_params)
#define BUZIOC_S_PARAMS       _IOWR('v', BASE_VIDIOCPRIVATE+1,  struct zoran_params)
#define BUZIOC_REQBUFS        _IOWR('v', BASE_VIDIOCPRIVATE+2,  struct zoran_requestbuffers)
#define BUZIOC_QBUF_CAPT      _IOW ('v', BASE_VIDIOCPRIVATE+3,  int)
#define BUZIOC_QBUF_PLAY      _IOW ('v', BASE_VIDIOCPRIVATE+4,  int)
#define BUZIOC_SYNC           _IOR ('v', BASE_VIDIOCPRIVATE+5,  struct zoran_sync)
#define BUZIOC_G_STATUS       _IOWR('v', BASE_VIDIOCPRIVATE+6,  struct zoran_status)


#ifdef __KERNEL__

#define MAJOR_VERSION 0		/* driver major version */
#define MINOR_VERSION 9		/* driver minor version */
#define RELEASE_VERSION 5	/* release version */

#define ZORAN_NAME    "ZORAN"	/* name of the device */

#define ZR_DEVNAME(zr) ((zr)->name)

#define   BUZ_MAX_WIDTH   (zr->timing->Wa)
#define   BUZ_MAX_HEIGHT  (zr->timing->Ha)
#define   BUZ_MIN_WIDTH    32	/* never display less than 32 pixels */
#define   BUZ_MIN_HEIGHT   24	/* never display less than 24 rows */

#define BUZ_NUM_STAT_COM    4
#define BUZ_MASK_STAT_COM   3

#define BUZ_MAX_FRAME     256	/* Must be a power of 2 */
#define BUZ_MASK_FRAME    255	/* Must be BUZ_MAX_FRAME-1 */

#define BUZ_MAX_INPUT       8

#if VIDEO_MAX_FRAME <= 32
#   define   V4L_MAX_FRAME   32
#elif VIDEO_MAX_FRAME <= 64
#   define   V4L_MAX_FRAME   64
#else
#   error   "Too many video frame buffers to handle"
#endif
#define   V4L_MASK_FRAME   (V4L_MAX_FRAME - 1)

#define MAX_KMALLOC_MEM (128*1024)

#include "zr36057.h"

enum card_type {
	UNKNOWN = -1,

	/* Pinnacle/Miro */
	DC10_old,		/* DC30 like */
	DC10_new,		/* DC10plus like */
	DC10plus,
	DC30,
	DC30plus,

	/* Linux Media Labs */
	LML33,
	LML33R10,

	/* Iomega */
	BUZ,

	/* total number of cards */
	NUM_CARDS
};

enum zoran_codec_mode {
	BUZ_MODE_IDLE,		/* nothing going on */
	BUZ_MODE_MOTION_COMPRESS,	/* grabbing frames */
	BUZ_MODE_MOTION_DECOMPRESS,	/* playing frames */
	BUZ_MODE_STILL_COMPRESS,	/* still frame conversion */
	BUZ_MODE_STILL_DECOMPRESS	/* still frame conversion */
};

enum zoran_buffer_state {
	BUZ_STATE_USER,		/* buffer is owned by application */
	BUZ_STATE_PEND,		/* buffer is queued in pend[] ready to feed to I/O */
	BUZ_STATE_DMA,		/* buffer is queued in dma[] for I/O */
	BUZ_STATE_DONE		/* buffer is ready to return to application */
};

enum zoran_map_mode {
	ZORAN_MAP_MODE_RAW,
	ZORAN_MAP_MODE_JPG_REC,
#define ZORAN_MAP_MODE_JPG ZORAN_MAP_MODE_JPG_REC
	ZORAN_MAP_MODE_JPG_PLAY,
};

enum gpio_type {
	GPIO_JPEG_SLEEP = 0,
	GPIO_JPEG_RESET,
	GPIO_JPEG_FRAME,
	GPIO_VID_DIR,
	GPIO_VID_EN,
	GPIO_VID_RESET,
	GPIO_CLK_SEL1,
	GPIO_CLK_SEL2,
	GPIO_MAX,
};

enum gpcs_type {
	GPCS_JPEG_RESET = 0,
	GPCS_JPEG_START,
	GPCS_MAX,
};

struct zoran_format {
	char *name;
	int palette;
	__u32 fourcc;
	int colorspace;
	int depth;
	__u32 flags;
};
/* flags */
#define ZORAN_FORMAT_COMPRESSED 1<<0
#define ZORAN_FORMAT_OVERLAY    1<<1
#define ZORAN_FORMAT_CAPTURE	1<<2
#define ZORAN_FORMAT_PLAYBACK	1<<3

/* overlay-settings */
struct zoran_overlay_settings {
	int is_set;
	int x, y, width, height;	/* position */
	int clipcount;		/* position and number of clips */
	const struct zoran_format *format;	/* overlay format */
};