atadrv.h

IXP425的BSP代码

					/* device accessible */

#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 */

/* 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 */

/* 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 */

/* ATAPI commands */

#define	ATA_PI_CMD_SRST		0x08	/* ATAPI Soft Reset */
#define	ATA_PI_CMD_PKTCMD	0xA0	/* ATAPI Pakcet Command */
#define	ATA_PI_CMD_IDENTD	0xA1	/* ATAPI Identify Device */
#define	ATA_PI_CMD_SERVICE	0xA2	/* Service */

/* CDROM commands */

#define CDROM_CMD_TEST_UNIT_READY  0x00     /* CDROM Test Unit Ready      */
#define CDROM_CMD_REQUEST_SENSE    0x03     /* CDROM Request Sense        */
#define CDROM_CMD_INQUIRY          0x12     /* CDROM Inquiry              */
#define CDROM_CMD_READ_CDROM_CAP   0x25     /* CDROM Read CD-ROM Capacity */
#define CDROM_CMD_READ_12          0xA8     /* CDROM Read (12)            */

/* 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_SINGLE_0	0x10	/* singleword DMA mode 0 */
#define ATA_DMA_SINGLE_1	0x11	/* singleword DMA mode 1 */
#define ATA_DMA_SINGLE_2	0x12	/* singleword DMA mode 2 */
#define ATA_DMA_MULTI_0		0x20	/* multiword DMA mode 0 */
#define ATA_DMA_MULTI_1		0x21	/* multiword DMA mode 1 */
#define ATA_DMA_MULTI_2		0x22	/* multiword 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		0x000d		/* PIO max supported mode */
#define ATA_DMA_0		0x0002		/* DMA mode 0 */
#define ATA_DMA_1		0x0003		/* DMA mode 1 */
#define ATA_DMA_2		0x0004		/* DMA mode 2 */
#define ATA_DMA_AUTO		0x0005		/* DMA max supported mode */
#define ATA_MODE_MASK		0x000F		/* transfer mode mask */

#define ATA_BITS_16		0x0040		/* RW bits size, 16 bits */
#define ATA_BITS_32		0x0080		/* RW bits size, 32 bits */
#define ATA_BITS_MASK		0x00c0		/* RW bits size mask */

#define ATA_PIO_SINGLE		0x0010		/* RW PIO single sector */
#define ATA_PIO_MULTI		0x0020		/* RW PIO multi sector */
#define ATA_PIO_MASK		0x0030		/* RW PIO mask */

#define ATA_DMA_SINGLE		0x0400		/* RW DMA single word */
#define ATA_DMA_MULTI		0x0800		/* RW DMA multi word */
#define ATA_DMA_MASK		0x0c00		/* RW DMA mask */

#define ATA_GEO_FORCE		0x0100		/* set geometry in the table */
#define ATA_GEO_PHYSICAL	0x0200		/* set physical geometry */
#define ATA_GEO_CURRENT		0x0300		/* set current geometry */
#define ATA_GEO_MASK		0x0300		/* geometry mask */


/****************************** ATAPI Devices ******************************/

/* config */

#define CONFIG_PROT_TYPE	0xc000 /* Protocol Type */
#define CONFIG_PROT_TYPE_ATAPI	0x8000 /* ATAPI */

#define CONFIG_DEV_TYPE		0x1f00 /* Device Type */
#define CONFIG_DEV_TYPE_CD_ROM	0x0500

#define CONFIG_REMOVABLE	0x0080 /* Removable */

#define CONFIG_PKT_TYPE		0x0060 /* CMD DRQ Type */
#define CONFIG_PKT_TYPE_MICRO	0x0000 /* Microprocessor DRQ */
#define CONFIG_PKT_TYPE_INTER	0x0020 /* Interrupt DRQ */
#define CONFIG_PKT_TYPE_ACCEL	0x0040 /* Accelerated DRQ */

#define CONFIG_PKT_SIZE		0x0003 /* Command Packet Size */
#define CONFIG_PKT_SIZE_12	0x0000 /* 12 bytes */

/* capabilities */

#define CAPABIL_DMA		0x0100	/* DMA Supported */
#define CAPABIL_LBA		0x0200	/* LBA Supported */
#define CAPABIL_IORDY_CTRL	0x0400	/* IORDY can be disabled */
#define CAPABIL_IORDY		0x0800	/* IORDY Supported */
#define CAPABIL_OVERLAP		0x2000	/* Overlap Operation Supported */

/* valid */

#define FIELDS_VALID		0x0002

/* singleDma */
 
#define SINGLEDMA_MODE		0xff00	/* 15-8: mode active */
#define SINGLEDMA_SUPPORT	0x00ff	/* 7-0: modes supported */

/* multiDma */
 
#define MULTIDMA_MODE		0xff00	/* 15-8: mode active */
#define MULTIDMA_SUPPORT	0x00ff	/* 7-0: modes supported */

/* advPio */

#define ADVPIO_MODE3		0x0001	/* The Device supports PIO Mode 3 */

/* ATAPI registers */

#define	ATAPI_DATA	pCtrl->data	/* ATA_DATA (RW) data reg. (16 bits) */
#define ATAPI_ERROR	pCtrl->error	/* ATA_ERROR (R) error reg. */
#define	ATAPI_FEATURE	pCtrl->feature	/* ATA_FEATURE (W) feature reg. */
#define	ATAPI_INTREASON	pCtrl->seccnt	/* ATA_SECCNT (R) interrupt reason */
#define	ATAPI_BCOUNT_LO	pCtrl->cylLo	/* ATA_CYL_LO (RW) byte count (low) */
#define	ATAPI_BCOUNT_HI	pCtrl->cylHi	/* ATA_CYL_HI (RW) byte count (high) */
#define	ATAPI_D_SELECT	pCtrl->sdh	/* ATA_SDH (RW) drive select reg. */
#define	ATAPI_STATUS	pCtrl->status 	/* ATA_STATUS (R) status reg. */
#define	ATAPI_COMMAND	pCtrl->command	/* ATA_COMMAND (W) command reg. */
#define	ATAPI_D_CONTROL	pCtrl->dControl	/* ATA_D_CONTROL (W) device control */

/* Error Register */

#define	ERR_SENSE_KEY		0xf0	/* Sense Key mask */
#define	SENSE_NO_SENSE		0x00 /* no sense sense key */
#define	SENSE_RECOVERED_ERROR	0x10 /* recovered error sense key */
#define	SENSE_NOT_READY		0x20 /* not ready sense key */
#define	SENSE_MEDIUM_ERROR	0x30 /* medium error sense key */
#define	SENSE_HARDWARE_ERROR	0x40 /* hardware error sense key */
#define	SENSE_ILLEGAL_REQUEST	0x50 /* illegal request sense key */
#define	SENSE_UNIT_ATTENTION	0x60 /* unit attention sense key */
#define	SENSE_DATA_PROTECT	0x70 /* data protect sense key */
#define	SENSE_ABBORTED_COMMAND	0xb0 /* aborted command sense key */
#define	SENSE_MISCOMPARE	0xe0 /* miscompare sense key */
#define	ERR_MCR			0x08	/* Media Change Requested */
#define	ERR_ABRT		0x04	/* Aborted command */
#define	ERR_EOM 		0x02	/* End Of Media */
#define	ERR_ILI 		0x01	/* Illegal Length Indication */

/* Feature Register */

#define	FEAT_OVERLAP	0x02	/* command may be overlapped */
#define	FEAT_DMA	0x01	/* data will be transferred via DMA */

/* Interrupt Reason Register */

#define	INTR_RELEASE	0x04	/* Bus released before completing the command */
#define	INTR_IO		0x02	/* 1 - In to the Host; 0 - Out to the device */
#define	INTR_COD	0x01	/* 1 - Command; 0 - user Data */

/* Drive Select Register */

#define	DSEL_FILLER	0xa0	/* to fill static fields */
#define	DSEL_DRV	0x10	/* Device 0 (DRV=0) or 1 (DRV=1) */

/* Status Register */

#define	STAT_BUSY	0x80	/* controller busy */
#define	STAT_READY	0x40	/* selected drive ready */

#define STAT_DMA_READY	0x20	/* ready to a DMA data transfer */

#define	STAT_WRTFLT	0x20	/* write fault */

#define STAT_SERVICE	0x10	/* service or interrupt request */

#define	STAT_SEEKCMPLT	0x10	/* seek complete */
#define	STAT_DRQ	0x08	/* data request */
#define	STAT_ECCCOR	0x04	/* ECC correction made in data */
#define	STAT_ERR	0x01	/* error detect */

/* Device Control Register */

#define	CTL_FILLER	0x8		/* bit 3 must be always set */
#define	CTL_RST		0x4		/* reset controller */
#define	CTL_IDS		0x2		/* disable interrupts */

/**********************************************************************/

/* function declarations */

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

extern STATUS	ataDrv		(int ctrl, int drives, int vector, int level,
				 int 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 */