atadrv.h

用于EQUATOR处理器上的FAT32文件系统（vxWorks5.5）

#define	ATA_SECTOR(base0)	(base0 + 3) /* (RW) first sector number	    */
#define	ATA_CYL_LO(base0)	(base0 + 4) /* (RW) cylinder low byte	    */
#define	ATA_CYL_HI(base0)	(base0 + 5) /* (RW) cylinder high byte	    */
#define	ATA_SDH(base0)		(base0 + 6) /* (RW) sector size/drive/head  */
#define	ATA_COMMAND(base0)	(base0 + 7) /* (W)  command register	    */
#define	ATA_STATUS(base0) 	(base0 + 7) /* (R)  immediate status	    */
#define	ATA_A_STATUS(base1)	(base1 + 0) /* (R)  alternate status	    */
#define	ATA_D_CONTROL(base1)	(base1 + 0) /* (W)  disk controller control */
#define	ATA_D_ADDRESS(base1)	(base1 + 1) /* (R)  disk controller address */


/* diagnostic code */

#define ATA_DIAG_OK		0x01

/* control register */

#define ATA_CTL_4BIT	 	0x8	/* use 4 head bits (wd1003) */
#define ATA_CTL_RST 		0x4	/* reset controller */
#define ATA_CTL_IDS 		0x2	/* disable interrupts */

/* status register */

#define	ATA_STAT_BUSY		0x80	/* controller busy */
#define	ATA_STAT_READY		0x40	/* selected drive ready */
#define	ATA_STAT_WRTFLT		0x20	/* write fault */
#define	ATA_STAT_SEEKCMPLT	0x10	/* seek complete */
#define	ATA_STAT_DRQ		0x08	/* data request */
#define	ATA_STAT_ECCCOR		0x04	/* ECC correction made in data */
#define	ATA_STAT_INDEX		0x02	/* index pulse from selected drive */
#define	ATA_STAT_ERR		0x01	/* error detect */
#define ATA_STAT_CMD_READY  0x82
/* size/drive/head register: addressing mode CHS or LBA */

#define ATA_SDH_IBM		0xa0	/* chs, 512 bytes sector, ecc */
#define ATA_SDH_LBA		0xe0	/* lba, 512 bytes sector, ecc */

  /* error register */
#define ATA_ERR_BAD_SECTOR      0x80    /* bad sector */
#define ATA_ERR_DATA_ERROR      0x40    /* unrecoverable error */
#define ATA_ERR_MED_CHNG        0x20    /* EIDE only - medium changed */
#define ATA_ERR_NO_ID_MARK      0x10    /* ID mark not found */
#define ATA_ERR_MED_CHNG_REQ    0x08    /* EIDE only - medium change required */
#define ATA_ERR_CMD_ABORT       0x04    /* command aborted */
#define ATA_ERR_NO_TRACK_0      0x02    /* no track 0 found*/
#define ATA_ERR_NO_DATA_MARK    0x01    /* data address mark not found */

/* commands */

#define	ATA_CMD_RECALIB		0x10	/* recalibrate */
#define	ATA_CMD_SEEK		0x70	/* seek */
#define	ATA_CMD_READ		0x20	/* read sectors with retries */
#define	ATA_CMD_WRITE		0x30	/* write sectors with retries */
#define	ATA_CMD_FORMAT		0x50	/* format track */
#define	ATA_CMD_DIAGNOSE	0x90	/* execute controller diagnostic */
#define	ATA_CMD_INITP		0x91	/* initialize drive parameters */
#define	ATA_CMD_READP		0xEC	/* identify */
#define	ATA_CMD_SET_FEATURE 	0xEF	/* set features */
#define	ATA_CMD_SET_MULTI	0xC6	/* set multi */
#define	ATA_CMD_READ_MULTI	0xC4	/* read multi */
#define	ATA_CMD_WRITE_MULTI	0xC5	/* write multi */
#define ATA_CMD_DMA_READ    0xC8
#define ATA_CMD_DMA_WRITE   0xCA

/* sub command of ATA_CMD_SET_FEATURE */

#define ATA_SUB_ENABLE_8BIT	0x01	/* enable 8bit data transfer */
#define ATA_SUB_ENABLE_WCACHE	0x02	/* enable write cache */
#define ATA_SUB_SET_RWMODE	0x03	/* set transfer mode */
#define ATA_SUB_DISABLE_RETRY	0x33	/* disable retry */
#define ATA_SUB_SET_LENGTH	0x44	/* length of vendor specific bytes */
#define ATA_SUB_SET_CACHE	0x54	/* set cache segments */
#define ATA_SUB_DISABLE_LOOK	0x55	/* disable read look-ahead feature */
#define ATA_SUB_DISABLE_REVE	0x66	/* disable reverting to power on def */
#define ATA_SUB_DISABLE_ECC	0x77	/* disable ECC */
#define ATA_SUB_DISABLE_8BIT	0x81	/* disable 8bit data transfer */
#define ATA_SUB_DISABLE_WCACHE	0x82	/* disable write cache */
#define ATA_SUB_ENABLE_ECC	0x88	/* enable ECC */
#define ATA_SUB_ENABLE_RETRY	0x99	/* enable retries */
#define ATA_SUB_ENABLE_LOOK	0xaa	/* enable read look-ahead feature */
#define ATA_SUB_SET_PREFETCH	0xab	/* set maximum prefetch */
#define ATA_SUB_SET_4BYTES	0xbb	/* 4 bytes of vendor specific bytes */
#define ATA_SUB_ENABLE_REVE	0xcc	/* enable reverting to power on def */

/* transfer modes of ATA_SUB_SET_RWMODE */

#define ATA_PIO_DEF_W		0x00	/* PIO default trans. mode */
#define ATA_PIO_DEF_WO		0x01	/* PIO default trans. mode, no IORDY */
#define ATA_PIO_W_0		0x08	/* PIO flow control trans. mode 0 */
#define ATA_PIO_W_1		0x09	/* PIO flow control trans. mode 1 */
#define ATA_PIO_W_2		0x0a	/* PIO flow control trans. mode 2 */
#define ATA_PIO_W_3		0x0b	/* PIO flow control trans. mode 3 */
#define ATA_PIO_W_4		0x0c	/* PIO flow control trans. mode 4 */
#define ATA_DMA_ULTRA_W_0	0x40	/* ultra DMA mode 0 */
#define ATA_DMA_ULTRA_W_1	0x41	/* ultra DMA mode 1 */
#define ATA_DMA_ULTRA_W_2	0x42	/* ultra DMA mode 2 */
#define ATA_DMA_ULTRA_W_3   0x43    /* ultra DMA mode 3 */
#define ATA_DMA_ULTRA_W_4   0x44    /* ultra DMA mode 4 */
#define ATA_DMA_ULTRA_W_5   0x45    /* ultra DMA mode 5 */
#define ATA_DMA_ULTRA_W_6   0x46    /* ultra DMA mode 6 */
#define ATA_DMA_ULTRA_W_7   0x47    /* ultra DMA mode 7 */
#define ATA_DMA_MULTI_W_0	0x20	/* multiword DMA mode 0 */
#define ATA_DMA_MULTI_W_1	0x21	/* multiword DMA mode 1 */
#define ATA_DMA_MULTI_W_2	0x22	/* multiword DMA mode 2 */
#define ATA_DMA_SINGLE_W_0  0x10    /* singleword DMA mode 0 */
#define ATA_DMA_SINGLE_W_1  0x11    /* singleword DMA mode 1 */
#define ATA_DMA_SINGLE_W_2  0x12    /* singleword DMA mode 2 */
#define ATA_MAX_RW_SECTORS	0x100	/* max sectors per transfer */

/* configuration flags: transfer mode, bits, unit, geometry */

#define ATA_PIO_DEF_0		ATA_PIO_DEF_W	/* PIO default mode */
#define ATA_PIO_DEF_1		ATA_PIO_DEF_WO	/* PIO default mode, no IORDY */
#define ATA_PIO_0		ATA_PIO_W_0	/* PIO mode 0 */
#define ATA_PIO_1		ATA_PIO_W_1	/* PIO mode 1 */
#define ATA_PIO_2		ATA_PIO_W_2	/* PIO mode 2 */
#define ATA_PIO_3		ATA_PIO_W_3	/* PIO mode 3 */
#define ATA_PIO_4		ATA_PIO_W_4	/* PIO mode 4 */
#define ATA_PIO_AUTO		0x0000000d		/* PIO max supported mode */
#define ATA_MODE_MASK		0x0000000F		/* transfer mode mask */
#define ATA_DMA_MULTI_0		0x00001000      /* DMA multiword mode 0 */
#define ATA_DMA_MULTI_1		0x00002000		/* DMA multiword mode 1 */
#define ATA_DMA_MULTI_2		0x00003000		/* DMA multiword mode 2 */
#define ATA_DMA_ULTRA_0     0x00004000      /* DMA ultra mode 0 */
#define ATA_DMA_ULTRA_1     0x00005000      /* DMA ultra mode 1 */
#define ATA_DMA_ULTRA_2     0x00006000      /* DMA ultra mode 2 */
#define ATA_DMA_ULTRA_3     0x00007000      /* DMA ultra mode 2 */
#define ATA_DMA_ULTRA_4     0x00008000      /* DMA ultra mode 2 */
#define ATA_DMA_ULTRA_5     0x00009000      /* DMA ultra mode 2 */
#define ATA_DMA_AUTO		0x0000E000		/* DMA max supported mode */
#define ATA_DMA_MODE_MASK   0x0000F000		/* transfer mode mask */

#define ATA_BITS_16		    0x00000040		/* RW bits size, 16 bits */
#define ATA_BITS_32		    0x00000080		/* RW bits size, 32 bits */
#define ATA_BITS_MASK		0x000000c0		/* RW bits size mask */

#define ATA_PIO_SINGLE		0x00000010		/* RW PIO single sector */
#define ATA_PIO_MULTI		0x00000020		/* RW PIO multi sector */
#define ATA_PIO_MASK		0x00000030		/* RW PIO mask */

#define ATA_DMA_ULTRA		0x00000400		/* RW DMA single word */
#define ATA_DMA_MULTI		0x00000800		/* RW DMA multi word */
#define ATA_DMA_MASK		0x00000c00		/* RW DMA mask */

#define ATA_GEO_FORCE		0x00000100		/* set geometry in the table */
#define ATA_GEO_PHYSICAL	0x00000200		/* set physical geometry */
#define ATA_GEO_CURRENT		0x00000300		/* set current geometry */
#define ATA_GEO_MASK		0x00000300		/* geometry mask */


/* function declarations */

#if defined(__STDC__) || defined(__cplusplus)

extern STATUS	ataDrv		(int ctrl, int drives, int vector, int level,
				 BOOL configType, int semTimeout,
				 int wdgTimeout);
extern BLK_DEV	*ataDevCreate	(int ctrl, int drive, int nBlks, int offset);
extern STATUS	ataRawio	(int ctrl, int drive, ATA_RAW *pAtaRaw);
extern void	ataShowInit	(void);
extern STATUS	ataShow		(int ctrl, int drive);
extern int	usrAtaPartition	(int ctrl, int drive, DOS_PART_TBL *pPart);
extern STATUS   usrAtaConfig	(int ctrl, int drive, char *fileName);
extern void     usrAtaInit	(void);

#else

extern STATUS	ataDrv		();
extern BLK_DEV	*ataDevCreate	();
extern STATUS	ataRawio	();
extern void	ataShowInit	();
extern STATUS	ataShow		();
extern int	usrAtaPartition	();
extern STATUS   usrAtaConfig	();
extern void     usrAtaInit	();

#endif  /* __STDC__ */


#endif  /* _ASMLANGUAGE */

#ifdef __cplusplus
}
#endif

#endif /* __INCpcataDrvh */