av7110.h

linux环境下的dvb驱动程序

#ifndef _AV7110_H_
#define _AV7110_H_

#include <linux/interrupt.h>
#include <linux/socket.h>
#include <linux/netdevice.h>

#ifdef CONFIG_DEVFS_FS
#include <linux/devfs_fs_kernel.h>
#endif

#include <media/saa7146_vv.h>

#include <linux/dvb/video.h>
#include <linux/dvb/audio.h>
#include <linux/dvb/dmx.h>
#include <linux/dvb/ca.h>
#include <linux/dvb/osd.h>
#include <linux/dvb/net.h>

#include "dvbdev.h"
#include "demux.h"
#include "dvb_demux.h"
#include "dmxdev.h"
#include "dvb_filter.h"
#include "dvb_net.h"
#include "dvb_ringbuffer.h"


#define MAXFILT 32

enum {AV_PES_STREAM, PS_STREAM, TS_STREAM, PES_STREAM};

struct av7110_p2t {
	u8		  pes[TS_SIZE];
	u8		  counter;
	long int	  pos;
	int		  frags;
	struct dvb_demux_feed *feed;
};

/* video MPEG decoder events: */
/* (code copied from dvb_frontend.c, should maybe be factored out...) */
#define MAX_VIDEO_EVENT 8
struct dvb_video_events {
	struct video_event	  events[MAX_VIDEO_EVENT];
	int			  eventw;
	int			  eventr;
	int			  overflow;
	wait_queue_head_t	  wait_queue;
	spinlock_t		  lock;
};


/* place to store all the necessary device information */
struct av7110 {

	/* devices */

	struct dvb_device	dvb_dev;
	struct dvb_net		dvb_net;

	struct video_device	v4l_dev;
	struct video_device	vbi_dev;

	struct saa7146_dev	*dev;

	struct dvb_i2c_bus	*i2c_bus;
	char			*card_name;

	/* support for analog module of dvb-c */
	int			has_analog_tuner;
	int			current_input;
	u32			current_freq;

	struct tasklet_struct	debi_tasklet;
	struct tasklet_struct	gpio_tasklet;

	int adac_type;	       /* audio DAC type */
#define DVB_ADAC_TI	  0
#define DVB_ADAC_CRYSTAL  1
#define DVB_ADAC_MSP	  2
#define DVB_ADAC_NONE	 -1


	/* buffers */

	void		       *iobuf;	 /* memory for all buffers */
	struct dvb_ringbuffer	avout;   /* buffer for video or A/V mux */
#define AVOUTLEN (128*1024)
	struct dvb_ringbuffer	aout;    /* buffer for audio */
#define AOUTLEN (64*1024)
	void		       *bmpbuf;
#define BMPLEN (8*32768+1024)

	/* bitmap buffers and states */

	int			bmpp;
	int			bmplen;
	int			bmp_state;
#define BMP_NONE     0
#define BMP_LOADING  1
#define BMP_LOADINGS 2
#define BMP_LOADED   3
	wait_queue_head_t	bmpq;


	/* DEBI and polled command interface */

	spinlock_t		debilock;
	struct semaphore	dcomlock;
	int			debitype;
	int			debilen;


	/* Recording and playback flags */

	int			rec_mode;
	int			playing;
#define RP_NONE  0
#define RP_VIDEO 1
#define RP_AUDIO 2
#define RP_AV	 3


	/* OSD */

	int			osdwin;      /* currently active window */
	u16			osdbpp[8];


	/* CA */

	ca_slot_info_t		ci_slot[2];

	int			vidmode;
	struct dmxdev		dmxdev;
	struct dvb_demux	demux;

	struct dmx_frontend	hw_frontend;
	struct dmx_frontend	mem_frontend;

	int			fe_synced;
	struct semaphore	pid_mutex;

	int			video_blank;
	struct video_status	videostate;
	int			display_ar;
	int			trickmode;
#define TRICK_NONE   0
#define TRICK_FAST   1
#define TRICK_SLOW   2
#define TRICK_FREEZE 3
	struct audio_status	audiostate;

	struct dvb_demux_filter *handle2filter[32];
	struct av7110_p2t	 p2t_filter[MAXFILT];
	struct dvb_filter_pes2ts p2t[2];
	struct ipack		 ipack[2];
	u8			*kbuf[2];

	int sinfo;
	int feeding;

	int arm_errors;
	int registered;


	/* AV711X */

	u32		    arm_fw;
	u32		    arm_rtsl;
	u32		    arm_vid;
	u32		    arm_app;
	u32		    avtype;
	int		    arm_ready;
	struct task_struct *arm_thread;
	wait_queue_head_t   arm_wait;
	u16		    arm_loops;
	int		    arm_rmmod;

	void		   *debi_virt;
	dma_addr_t	    debi_bus;

	u16		    pids[DMX_PES_OTHER];

	struct dvb_ringbuffer	 ci_rbuffer;
	struct dvb_ringbuffer	 ci_wbuffer;


	struct dvb_adapter	 *dvb_adapter;
	struct dvb_device	 *video_dev;
	struct dvb_device	 *audio_dev;
	struct dvb_device	 *ca_dev;
	struct dvb_device	 *osd_dev;

	struct dvb_video_events  video_events;
	video_size_t		 video_size;

	u32		    ir_config;

	/* firmware stuff */
	unsigned int device_initialized;

	unsigned char *bin_fw;
	unsigned long size_fw;

	unsigned char *bin_dpram;
	unsigned long size_dpram;

	unsigned char *bin_root;
	unsigned long size_root;
};


extern void ChangePIDs(struct av7110 *av7110, u16 vpid, u16 apid, u16 ttpid,
		       u16 subpid, u16 pcrpid);

extern void av7110_register_irc_handler(void (*func)(u32));
extern void av7110_unregister_irc_handler(void (*func)(u32));
extern void av7110_setup_irc_config (struct av7110 *av7110, u32 ir_config);

extern int av7110_ir_init (void);
extern void av7110_ir_exit (void);

/* msp3400 i2c subaddresses */
#define MSP_WR_DEM 0x10
#define MSP_RD_DEM 0x11
#define MSP_WR_DSP 0x12
#define MSP_RD_DSP 0x13

extern int i2c_writereg(struct av7110 *av7110, u8 id, u8 reg, u8 val);
extern u8 i2c_readreg(struct av7110 *av7110, u8 id, u8 reg);
extern int msp_writereg(struct av7110 *av7110, u8 dev, u16 reg, u16 val);
extern int msp_readreg(struct av7110 *av7110, u8 dev, u16 reg, u16 *val);


extern int av7110_init_analog_module(struct av7110 *av7110);
extern int av7110_init_v4l(struct av7110 *av7110);
extern int av7110_exit_v4l(struct av7110 *av7110);

#endif /* _AV7110_H_ */