adv7175.h

视频601芯片的驱动源码,你可以完全掌控该芯片了,对于其它多媒体芯片的设计具有参考价值

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

$Workfile: ADV7175.H $
$Date: 5/06/97 10:55a $
$Revision: 10 $
* Purpose:	
*			Header for ADV7175 Video Encoder Chip.			
* Notes:       
*
$History: ADV7175.H $
 * 
 * *****************  Version 10  *****************
 * User: Dstarr       Date: 5/06/97    Time: 10:55a
 * Updated in $/601test
 * Add symbol definitions to support closed captioning
 * 
 * *****************  Version 9  *****************
 * User: Stevel       Date: 8/24/96    Time: 7:00p
 * Updated in $/601cman
 * Add new constant for RGB video output.
 * 
 * *****************  Version 8  *****************
 * User: Dstarr       Date: 8/07/96    Time: 1:27p
 * Updated in $/601cman
 * Support Phillips Mode
 * 
 * *****************  Version 7  *****************
 * User: Stevel       Date: 7/29/96    Time: 4:59p
 * Updated in $/601cman
 * Delete RGB definition.
 * 
 * *****************  Version 6  *****************
 * User: Stevel       Date: 7/25/96    Time: 8:10p
 * Updated in $/601cman
 * Add a RGB output enable bit definition for the parameter output_video,
 * in dac_init().
 * 
 * *****************  Version 5  *****************
 * User: Dstarr       Date: 5/02/96    Time: 2:05p
 * Updated in $/601cman
 * Removed COMPOSITE and S_VIDEO.  These are defined in globsym.h, and are
 * needed there.  If you get undefined on these two include the most
 * recent version of globsym.h
 * .
 * 
 * *****************  Version 4  *****************
 * User: Dstarr       Date: 4/09/96    Time: 9:31a
 * Updated in $/601cman
 * Removed the macro vision registers.  7176's don't have them,  If
 * program tries to init them on a 7176 it gets in trouble.  Easier just
 * to leave them alone.
 * 
 * *****************  Version 3  *****************
 * User: Dstarr       Date: 3/13/96    Time: 5:09p
 * Updated in $/601cman
 * Checked out in lab.  601test plays beauty thru dll.  Made all dll
 * objects dllimport.
 * 
 * *****************  Version 2  *****************
 * User: Stevel       Date: 3/10/96    Time: 10:18p
 * Updated in $/601cman
 * Add dllimport keyword to export functions for diagnostic test.
 * 
 * *****************  Version 1  *****************
 * User: Stevel       Date: 3/06/96    Time: 7:53p
 * Created in $/601cman
 * Initial release

  
    This code and information is provided "as is" without warranty of any
    kind, either expressed or implied, including but not limited to the
    implied warranties of merchantability and/or fitness for a particular
    purpose.
  
    1996 Analog Devices, Inc. 
  
-------------------------------------------------------------------------*/
#define NMACROV 14              /* Number of Macro Vision Registers */

#define LINKTODLL __declspec(dllimport)

typedef struct tagADV7175_REG
{
	byte	chipaddr;
	byte	subaddr;			// Index Reg. (W)
	byte	ModeReg0;			// Mode Regs (R/W)
	byte	ModeReg1;			// Mode Regs (R/W)
	dword	SubCarrierFrq;		// SubCarry Frequency Regs (R/W)
	byte	SubCarrierPhase;	// SubCarry Phase Regs (R/W)
	byte	TimMode0;			// Timing Reg (R/W)
	word	CCaption_Xdata;		// Close Captioning Extended Data Regs (R/W)
	word	CCaption_Data;		// Close Captioning Data Regs (R/W)
	byte	TimMode1;			
	byte	ModeReg2;
	dword	Pedestal;
/*	byte	MacroVision[NMACROV];*/     // MacroVision Regs (R/W)
} ADV7175_REG;

#define	ALL7175REGS (sizeof(ADV7175_REG) - 2)
#define	ALL7176REGS (sizeof(ADV7175_REG) - 2)

#define	CHIP7175	0xD4                /* IIC bus address of a 7175 */
#define	CHIP7176	0x54                /* Likewise a 7176 */

#define MODE_REG0       0               /* Register Number for MR0 */
/*  Mode Reg 0 Bits		*/
#define	PEDSTAL         4
#define	WIDE_LFILTER	0x10
#define	RGBSYN			0x20
#define	RGBOUT			0x40
#define NTSCOUT         0
#define	PALOUT			1


#define MODE_REG1       1               /* ditto for MR1 */
/* Mode reg 1 bits		*/
#define PROGRESSIVE     1               /* non-interlaced scan */
#define CCAPODD         2               /* CloseCaption field 1 */
#define CCAPEVEN       4               /* CloseCaption field 2 */
#define CCAPBOTH        (CCAPODD + CCAPEVEN)
#define RED_DAC_OFF     8               /* Set DAC_OFF to save power */
#define GREEN_DAC_OFF   0x10
#define BLUE_DAC_OFF    0x20
#define	CVBS_DAC_OFF	0x40
#define	SIGGEN			0x80            /* Turn on internal color bar gen*/

#define TIMMODE0 		7               /* Register Number for T. Mode 0 */
/*  Timing register 0 bits    */

#define	MASTER			1               /* Master Sync Mode	*/
#define	SLAVE			0               /* Slave Sync Mode */

    /* Timing (actually sync) Mode control codes */

#define	CCIR656			0               /* Sync embedded in video stream */
#define HBLANK_FIELD    2               /* sync off h, blank & field1/2 */
#define HVBLANK         4               /* Sync off H&V Sync & Blank */
#define HVFIELD         6               /* Sync off H&V sync & field1/2 */

#define PIXELPORT16     0x40            /* 16 bit video data bus */
#define TIME_RESET      0x80            /* 7175 timer reset bit */

#define CCAP_REG        10              /* Closed captioning register */

#define TIMMODE1        12              /* Register Number for T. Mode 1 */

/*  Mode reg 2 Bits     */
#define RTCO_ACTIVE     0x6             /* Use RTCO data to fix color */
#define CCIR_601_OUT	0x04			/* Use CCIR 601 video standard */


/*	Declare functions		*/


LINKTODLL int dac_init(int video_format,int direction,int output_video);

/* Declare global variables     */

LINKTODLL  ADV7175_REG	init_7175;
LINKTODLL  int encoder_iic ;
LINKTODLL  int encoder_nreg ;