at2041_inf.h

这个是Linux下的关于2042的程序

#ifndef __AT2041_INF_H
#define __AT2041_INF_H

/* ioctl command */
#define AT2041_INIT					(0xAA)
#define AT2041_MUX_FIFO_ADDR		(0x0)	//0x00004000	 /*HJT*/
#define AT2041_DEMUX_FIFO_ADDR		(0x1)	//0x00004800
#define AT2041_TX_FIFO_ADDR			(0x2)	//0x00005000
#define AT2041_RX_FIFO_ADDR			(0x3)	//0x00005800
#define AT2041_COMMAND_REG_ADDR	(0x4)	//0x00006000
#define AT2041_CONTROL_REG_ADDR	(0x5)	//0x00006800
#define AT2041_STATUS_REG_ADDR	(0x6)	//0x00007000

#define	AT2041_TX_FIFO_ADDR_READ		(0x7)

#define AT2041_ADD_SHIFT			(20)	/*HJT*/
#define AT2041_DAT_SHIFT			(16)	/*HJT*/

#define 	SET_REG					(0xF0)

#define 	SET_CBR					(0xF1)
#define 	SET_RES					(0xF2)
#define 	SET_QUALITY				(0xF3)
#define 	SET_ENC_MODE				(0xF4)
#define 	SET_ENC_OPT				(0xF5)

#define	AT2042_BASE			0x10000000		/*HJT*/
//#define	AT2042_BASE			0x20000000	/*HJT*/
#define 	AT2042_REMAP_SIZE		0x00800000	

#define AT2041_MAJOR				241     

//#define MAX_BUF_NUM					10
#define MAX_BUF_NUM				20

#define MAX_TXBUF_NUM				30

#define MAX_BUF_SIZE				120*1024	/*2005-02-07 netbsd*/

#define AT2041_MUX_FIFO			(AT2041_MUX_FIFO_ADDR<<AT2041_ADD_SHIFT)	//0x00004000	 /*HJT*/
#define AT2041_DEMUX_FIFO		(AT2041_DEMUX_FIFO_ADDR<<AT2041_ADD_SHIFT)	//0x00004800
#define AT2041_TX_FIFO			(AT2041_TX_FIFO_ADDR<<AT2041_ADD_SHIFT)	//0x00005000
#define AT2041_RX_FIFO			(AT2041_RX_FIFO_ADDR<<AT2041_ADD_SHIFT)	//0x00005800
#define AT2041_COMMAND_REG	(AT2041_COMMAND_REG_ADDR<<AT2041_ADD_SHIFT)	//0x00006000
#define AT2041_CONTROL_REG		(AT2041_CONTROL_REG_ADDR<<AT2041_ADD_SHIFT)	//0x00006800
#define AT2041_STATUS_REG		(AT2041_STATUS_REG_ADDR<<AT2041_ADD_SHIFT)	//0x00007000

typedef struct __SET_REG_STR__ {
	unsigned short cmd_num;
	unsigned short addr;
	unsigned short value[6];
}_SET_REG_STR_;

typedef enum {
	NTSC,
	PAL
} VIDEO_MODE;
 
#define ID_FLAG             0x8000  // Rx ID flag
#define R_FLAG              0x0000  // Read flag
#define W_FLAG              0x0001  // Write flag
//#define M_FLAG              0x0001  // Message flag

#define RxID(GID,CID,PID,WF) (ID_FLAG | (GID << 11) | (CID << 7) | (PID << 1) | WF)
#define GID_GLOBAL             	0x0     //  global
#define GID_ENCODER             	0x1     //  encoder
#define GID_DECODER             	0x2     //  decoder
#define GID_OSD             		0x3     //  OSD
#define GID_ENC_VIDEO            0x4     //  encoder video
#define GID_ENC_VIDEO_CH      0x5     //  encoder video channel
#define GID_ENC_AUDIO            0x6     //  encoder audio
#define GID_ENC_AUDIO_CH      0x7     //  encoder audio channel
#define GID_DEC_VIDEO            0x8     //  decoder video
#define GID_DEC_VIDEO_CH      0x9     //  decoder video channel
#define GID_DEC_AUDIO            0xA     //  decoder audio
// pentamicro 2005.07.28
#define PID_DEC_STC_SPEED_CONTROL		0x15
void at2041_ioctl_init(void); 
static int at2041_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg);

#define	WRITE_Rx_FIFO			AT2041_RX_FIFO_ADDR

#endif /* __AT2021_H */