saa7134.h

该代码是天敏电视卡天敏大师4的核心芯片在linux下面的驱动

	struct saa7134_format      *fmt;
	unsigned int               width,height;
	struct videobuf_queue      cap;
	struct saa7134_pgtable     pt_cap;

	/* vbi capture */
	struct videobuf_queue      vbi;
	struct saa7134_pgtable     pt_vbi;
};

/* TS status */
struct saa7134_ts {
	unsigned int               users;

	/* TS capture */
	struct videobuf_queue      ts;
	struct saa7134_pgtable     pt_ts;
	int			   started;
};

/* oss dsp status */
struct saa7134_oss {
        struct semaphore           lock;
	int                        minor_mixer;
	int                        minor_dsp;
	unsigned int               users_dsp;

	/* mixer */
	enum saa7134_audio_in      input;
	unsigned int               count;
	unsigned int               line1;
	unsigned int               line2;

	/* dsp */
	unsigned int               afmt;
	unsigned int               rate;
	unsigned int               channels;
	unsigned int               recording_on;
	unsigned int               dma_running;
	unsigned int               blocks;
	unsigned int               blksize;
	unsigned int               bufsize;
	struct saa7134_pgtable     pt;
	struct videobuf_dmabuf     dma;
	wait_queue_head_t          wq;
	unsigned int               dma_blk;
	unsigned int               read_offset;
	unsigned int               read_count;
};

/* IR input */
struct saa7134_ir {
	struct input_dev           dev;
	struct ir_input_state      ir;
	char                       name[32];
	char                       phys[32];
	u32                        mask_keycode;
	u32                        mask_keydown;
	u32                        mask_keyup;
        int                        polling;
        u32                        last_gpio;
        struct timer_list          timer;
};

/* global device status */
struct saa7134_dev {
	struct list_head           devlist;
        struct semaphore           lock;
       	spinlock_t                 slock;
#ifdef VIDIOC_G_PRIORITY 
	struct v4l2_prio_state     prio;
#endif

	/* various device info */
	unsigned int               resources;
	struct video_device        *video_dev;
	struct video_device        *ts_dev;
	struct video_device        *radio_dev;
	struct video_device        *vbi_dev;
	struct saa7134_oss         oss;
	struct saa7134_ts          ts;

	/* infrared remote */
	int                        has_remote;
	struct saa7134_ir          *remote;

	/* pci i/o */
	char                       name[32];
	struct pci_dev             *pci;
	unsigned char              pci_rev,pci_lat;
	__u32                      *lmmio;
	__u8                       *bmmio;

	/* config info */
	unsigned int               board;
	unsigned int               tuner_type;
	unsigned int               gpio_value;

	/* i2c i/o */
	struct i2c_adapter         i2c_adap;
	struct i2c_client          i2c_client;
	unsigned char              eedata[64];

	/* video overlay */
	struct v4l2_framebuffer    ovbuf;
	struct saa7134_format      *ovfmt;
	unsigned int               ovenable;
	enum v4l2_field            ovfield;

	/* video+ts+vbi capture */
	struct saa7134_dmaqueue    video_q;
	struct saa7134_dmaqueue    ts_q;
	struct saa7134_dmaqueue    vbi_q;
	unsigned int               video_fieldcount;
	unsigned int               vbi_fieldcount;

	/* various v4l controls */
	struct saa7134_tvnorm      *tvnorm;              /* video */
	struct saa7134_tvaudio     *tvaudio;
	unsigned int               ctl_input;
	int                        ctl_bright;
	int                        ctl_contrast;
	int                        ctl_hue;
	int                        ctl_saturation;
	int                        ctl_freq;
	int                        ctl_mute;             /* audio */
	int                        ctl_volume;
	int                        ctl_invert;           /* private */
	int                        ctl_mirror;
	int                        ctl_y_odd;
	int                        ctl_y_even;
	
	/* crop */
	struct v4l2_rect           crop_bounds;
	struct v4l2_rect           crop_defrect;
	struct v4l2_rect           crop_current;
	
	/* other global state info */
	unsigned int               automute;
	struct saa7134_thread      thread;
	struct saa7134_input       *input;
	struct saa7134_input       *hw_input;
	unsigned int               hw_mute;
	int                        last_carrier;
};

/* ----------------------------------------------------------- */

#define saa_readl(reg)             readl(dev->lmmio + (reg))
#define saa_writel(reg,value)      writel((value), dev->lmmio + (reg));
#define saa_andorl(reg,mask,value) \
  writel((readl(dev->lmmio+(reg)) & ~(mask)) |\
  ((value) & (mask)), dev->lmmio+(reg))
#define saa_setl(reg,bit)          saa_andorl((reg),(bit),(bit))
#define saa_clearl(reg,bit)        saa_andorl((reg),(bit),0)

#define saa_readb(reg)             readb(dev->bmmio + (reg))
#define saa_writeb(reg,value)      writeb((value), dev->bmmio + (reg));
#define saa_andorb(reg,mask,value) \
  writeb((readb(dev->bmmio+(reg)) & ~(mask)) |\
  ((value) & (mask)), dev->bmmio+(reg))
#define saa_setb(reg,bit)          saa_andorb((reg),(bit),(bit))
#define saa_clearb(reg,bit)        saa_andorb((reg),(bit),0)

#define saa_wait(d) { udelay(d); }

/* ----------------------------------------------------------- */
/* saa7134-core.c                                              */

extern struct list_head  saa7134_devlist;
extern unsigned int      saa7134_devcount;

void saa7134_print_ioctl(char *name, unsigned int cmd);
void saa7134_track_gpio(struct saa7134_dev *dev, char *msg);

#define SAA7134_PGTABLE_SIZE 4096

int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt);
int  saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
			   struct scatterlist *list, unsigned int length,
			   unsigned int startpage);
void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt);

int saa7134_buffer_count(unsigned int size, unsigned int count);
int saa7134_buffer_startpage(struct saa7134_buf *buf);
unsigned long saa7134_buffer_base(struct saa7134_buf *buf);

int saa7134_buffer_queue(struct saa7134_dev *dev, struct saa7134_dmaqueue *q,
			 struct saa7134_buf *buf);
void saa7134_buffer_finish(struct saa7134_dev *dev, struct saa7134_dmaqueue *q,
			   unsigned int state);
void saa7134_buffer_next(struct saa7134_dev *dev, struct saa7134_dmaqueue *q);
void saa7134_buffer_timeout(unsigned long data);
void saa7134_dma_free(struct saa7134_dev *dev,struct saa7134_buf *buf);

int saa7134_set_dmabits(struct saa7134_dev *dev);

/* ----------------------------------------------------------- */
/* saa7134-cards.c                                             */

extern struct saa7134_board saa7134_boards[];
extern const unsigned int saa7134_bcount;
extern struct pci_device_id __devinitdata saa7134_pci_tbl[];

extern int saa7134_board_init(struct saa7134_dev *dev);


/* ----------------------------------------------------------- */
/* saa7134-i2c.c                                               */

int saa7134_i2c_register(struct saa7134_dev *dev);
int saa7134_i2c_unregister(struct saa7134_dev *dev);
void saa7134_i2c_call_clients(struct saa7134_dev *dev,
			      unsigned int cmd, void *arg);


/* ----------------------------------------------------------- */
/* saa7134-video.c                                             */

extern struct video_device saa7134_video_template;
extern struct video_device saa7134_radio_template;

int saa7134_common_ioctl(struct saa7134_dev *dev,
			 unsigned int cmd, void *arg);

int saa7134_video_init1(struct saa7134_dev *dev);
int saa7134_video_init2(struct saa7134_dev *dev);
int saa7134_video_fini(struct saa7134_dev *dev);
void saa7134_irq_video_intl(struct saa7134_dev *dev);
void saa7134_irq_video_done(struct saa7134_dev *dev, unsigned long status);


/* ----------------------------------------------------------- */
/* saa7134-ts.c                                                */

extern struct video_device saa7134_ts_template;
int saa7134_ts_init1(struct saa7134_dev *dev);
int saa7134_ts_fini(struct saa7134_dev *dev);
void saa7134_irq_ts_done(struct saa7134_dev *dev, unsigned long status);


/* ----------------------------------------------------------- */
/* saa7134-vbi.c                                               */

extern struct videobuf_queue_ops saa7134_vbi_qops;
extern struct video_device saa7134_vbi_template;

int saa7134_vbi_init1(struct saa7134_dev *dev);
int saa7134_vbi_fini(struct saa7134_dev *dev);
void saa7134_irq_vbi_done(struct saa7134_dev *dev, unsigned long status);


/* ----------------------------------------------------------- */
/* saa7134-tvaudio.c                                           */

int saa7134_tvaudio_rx2mode(u32 rx);

void saa7134_tvaudio_setmute(struct saa7134_dev *dev);
void saa7134_tvaudio_setinput(struct saa7134_dev *dev,
			      struct saa7134_input *in);
void saa7134_tvaudio_setvolume(struct saa7134_dev *dev, int level);
int saa7134_tvaudio_getstereo(struct saa7134_dev *dev);

int saa7134_tvaudio_init2(struct saa7134_dev *dev);
int saa7134_tvaudio_fini(struct saa7134_dev *dev);
int saa7134_tvaudio_do_scan(struct saa7134_dev *dev);

int saa_dsp_writel(struct saa7134_dev *dev, int reg, u32 value);

/* ----------------------------------------------------------- */
/* saa7134-oss.c                                               */

extern struct file_operations saa7134_dsp_fops;
extern struct file_operations saa7134_mixer_fops;

int saa7134_oss_init1(struct saa7134_dev *dev);
int saa7134_oss_fini(struct saa7134_dev *dev);
void saa7134_irq_oss_done(struct saa7134_dev *dev, unsigned long status);

/* ----------------------------------------------------------- */
/* saa7134-input.c                                             */

int  saa7134_input_init1(struct saa7134_dev *dev);
void saa7134_input_fini(struct saa7134_dev *dev);
void saa7134_input_irq(struct saa7134_dev *dev);

/*
 * Local variables:
 * c-basic-offset: 8
 * End:
 */