[people/ms/u-boot.git] / include / scsi.h

/*
 * (C) Copyright 2001
 * Denis Peter, MPL AG Switzerland
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 *
 */
 #ifndef _SCSI_H
 #define _SCSI_H

typedef struct SCSI_cmd_block{
	unsigned char		cmd[16];					/* command				   */
	/* for request sense */
	unsigned char		sense_buf[64]
		__attribute__((aligned(ARCH_DMA_MINALIGN)));
	unsigned char		status;						/* SCSI Status			 */
	unsigned char		target;						/* Target ID				 */
	unsigned char		lun;							/* Target LUN        */
	unsigned char		cmdlen;						/* command len				*/
	unsigned long		datalen;					/* Total data length	*/
	unsigned char	*	pdata;						/* pointer to data		*/
	unsigned char		msgout[12];				/* Messge out buffer (NOT USED) */
	unsigned char		msgin[12];				/* Message in buffer	*/
	unsigned char		sensecmdlen;			/* Sense command len	*/
	unsigned long		sensedatalen;			/* Sense data len			*/
	unsigned char		sensecmd[6];			/* Sense command			*/
	unsigned long		contr_stat;				/* Controller Status	*/
	unsigned long		trans_bytes;			/* tranfered bytes		*/

	unsigned int		priv;
}ccb;

/*-----------------------------------------------------------
**
**	SCSI  constants.
**
**-----------------------------------------------------------
*/

/*
**	Messages
*/

#define	M_COMPLETE	(0x00)
#define	M_EXTENDED	(0x01)
#define	M_SAVE_DP	(0x02)
#define	M_RESTORE_DP	(0x03)
#define	M_DISCONNECT	(0x04)
#define	M_ID_ERROR	(0x05)
#define	M_ABORT		(0x06)
#define	M_REJECT	(0x07)
#define	M_NOOP		(0x08)
#define	M_PARITY	(0x09)
#define	M_LCOMPLETE	(0x0a)
#define	M_FCOMPLETE	(0x0b)
#define	M_RESET		(0x0c)
#define	M_ABORT_TAG	(0x0d)
#define	M_CLEAR_QUEUE	(0x0e)
#define	M_INIT_REC	(0x0f)
#define	M_REL_REC	(0x10)
#define	M_TERMINATE	(0x11)
#define	M_SIMPLE_TAG	(0x20)
#define	M_HEAD_TAG	(0x21)
#define	M_ORDERED_TAG	(0x22)
#define	M_IGN_RESIDUE	(0x23)
#define	M_IDENTIFY	(0x80)

#define	M_X_MODIFY_DP	(0x00)
#define	M_X_SYNC_REQ	(0x01)
#define	M_X_WIDE_REQ	(0x03)
#define	M_X_PPR_REQ	(0x04)


/*
**	Status
*/

#define	S_GOOD		(0x00)
#define	S_CHECK_COND	(0x02)
#define	S_COND_MET	(0x04)
#define	S_BUSY		(0x08)
#define	S_INT		(0x10)
#define	S_INT_COND_MET	(0x14)
#define	S_CONFLICT	(0x18)
#define	S_TERMINATED	(0x20)
#define	S_QUEUE_FULL	(0x28)
#define	S_ILLEGAL	(0xff)
#define	S_SENSE		(0x80)

/*
 * Sense_keys
 */

#define SENSE_NO_SENSE				0x0
#define SENSE_RECOVERED_ERROR	0x1
#define SENSE_NOT_READY				0x2
#define SENSE_MEDIUM_ERROR		0x3
#define SENSE_HARDWARE_ERROR	0x4
#define SENSE_ILLEGAL_REQUEST	0x5
#define SENSE_UNIT_ATTENTION	0x6
#define SENSE_DATA_PROTECT		0x7
#define SENSE_BLANK_CHECK			0x8
#define SENSE_VENDOR_SPECIFIC	0x9
#define SENSE_COPY_ABORTED		0xA
#define SENSE_ABORTED_COMMAND	0xB
#define SENSE_VOLUME_OVERFLOW	0xD
#define SENSE_MISCOMPARE			0xE


#define SCSI_CHANGE_DEF	0x40		/* Change Definition (Optional) */
#define SCSI_COMPARE		0x39		/* Compare (O) */
#define SCSI_COPY			0x18		/* Copy (O) */
#define SCSI_COP_VERIFY	0x3A		/* Copy and Verify (O) */
#define SCSI_INQUIRY		0x12		/* Inquiry (MANDATORY) */
#define SCSI_LOG_SELECT	0x4C		/* Log Select (O) */
#define SCSI_LOG_SENSE	0x4D		/* Log Sense (O) */
#define SCSI_MODE_SEL6	0x15		/* Mode Select 6-byte (Device Specific) */
#define SCSI_MODE_SEL10	0x55		/* Mode Select 10-byte (Device Specific) */
#define SCSI_MODE_SEN6	0x1A		/* Mode Sense 6-byte (Device Specific) */
#define SCSI_MODE_SEN10	0x5A		/* Mode Sense 10-byte (Device Specific) */
#define SCSI_READ_BUFF	0x3C		/* Read Buffer (O) */
#define SCSI_REQ_SENSE	0x03		/* Request Sense (MANDATORY) */
#define SCSI_SEND_DIAG	0x1D		/* Send Diagnostic (O) */
#define SCSI_TST_U_RDY	0x00		/* Test Unit Ready (MANDATORY) */
#define SCSI_WRITE_BUFF	0x3B		/* Write Buffer (O) */
/***************************************************************************
 *			  %%% Commands Unique to Direct Access Devices %%%
 ***************************************************************************/
#define SCSI_COMPARE		0x39		/* Compare (O) */
#define SCSI_FORMAT		0x04		/* Format Unit (MANDATORY) */
#define SCSI_LCK_UN_CAC	0x36		/* Lock Unlock Cache (O) */
#define SCSI_PREFETCH	0x34		/* Prefetch (O) */
#define SCSI_MED_REMOVL	0x1E		/* Prevent/Allow medium Removal (O) */
#define SCSI_READ6		0x08		/* Read 6-byte (MANDATORY) */
#define SCSI_READ10		0x28		/* Read 10-byte (MANDATORY) */
#define SCSI_RD_CAPAC	0x25		/* Read Capacity (MANDATORY) */
#define SCSI_RD_DEFECT	0x37		/* Read Defect Data (O) */
#define SCSI_READ_LONG	0x3E		/* Read Long (O) */
#define SCSI_REASS_BLK	0x07		/* Reassign Blocks (O) */
#define SCSI_RCV_DIAG	0x1C		/* Receive Diagnostic Results (O) */
#define SCSI_RELEASE	0x17		/* Release Unit (MANDATORY) */
#define SCSI_REZERO		0x01		/* Rezero Unit (O) */
#define SCSI_SRCH_DAT_E	0x31		/* Search Data Equal (O) */
#define SCSI_SRCH_DAT_H	0x30		/* Search Data High (O) */
#define SCSI_SRCH_DAT_L	0x32		/* Search Data Low (O) */
#define SCSI_SEEK6		0x0B		/* Seek 6-Byte (O) */
#define SCSI_SEEK10		0x2B		/* Seek 10-Byte (O) */
#define SCSI_SEND_DIAG	0x1D		/* Send Diagnostics (MANDATORY) */
#define SCSI_SET_LIMIT	0x33		/* Set Limits (O) */
#define SCSI_START_STP	0x1B		/* Start/Stop Unit (O) */
#define SCSI_SYNC_CACHE	0x35		/* Synchronize Cache (O) */
#define SCSI_VERIFY		0x2F		/* Verify (O) */
#define SCSI_WRITE6		0x0A		/* Write 6-Byte (MANDATORY) */
#define SCSI_WRITE10	0x2A		/* Write 10-Byte (MANDATORY) */
#define SCSI_WRT_VERIFY	0x2E		/* Write and Verify (O) */
#define SCSI_WRITE_LONG	0x3F		/* Write Long (O) */
#define SCSI_WRITE_SAME	0x41		/* Write Same (O) */


/****************************************************************************
 * decleration of functions which have to reside in the LowLevel Part Driver
 */

void scsi_print_error(ccb *pccb);
int scsi_exec(ccb *pccb);
void scsi_bus_reset(void);
void scsi_low_level_init(int busdevfunc);


/***************************************************************************
 * functions residing inside cmd_scsi.c
 */
void scsi_init(void);
void scsi_scan(int mode);


#define SCSI_IDENTIFY					0xC0  /* not used */

/* Hardware errors  */
#define SCSI_SEL_TIME_OUT			 0x00000101	 /* Selection time out */
#define SCSI_HNS_TIME_OUT			 0x00000102  /* Handshake */
#define SCSI_MA_TIME_OUT			 0x00000103  /* Phase error */
#define SCSI_UNEXP_DIS				 0x00000104  /* unexpected disconnect */

#define SCSI_INT_STATE				 0x00010000  /* unknown Interrupt number is stored in 16 LSB */


#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif

#endif /* _SCSI_H */
Commit	Line	Data
e85390dc WD	1	/*
	2	* (C) Copyright 2001
	3	* Denis Peter, MPL AG Switzerland
	4	*
	5	* See file CREDITS for list of people who contributed to this
	6	* project.
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of
	11	* the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	21	* MA 02111-1307 USA
	22	*
	23	*/
	24	#ifndef _SCSI_H
	25	#define _SCSI_H
	26
	27	typedef struct SCSI_cmd_block{
	28	unsigned char cmd[16]; /* command */
f5766139 PS	29	/* for request sense */
	30	unsigned char sense_buf[64]
	31	__attribute__((aligned(ARCH_DMA_MINALIGN)));
e85390dc WD	32	unsigned char status; /* SCSI Status */
	33	unsigned char target; /* Target ID */
	34	unsigned char lun; /* Target LUN */
	35	unsigned char cmdlen; /* command len */
	36	unsigned long datalen; /* Total data length */
53677ef1	37	unsigned char * pdata; /* pointer to data */
e85390dc WD	38	unsigned char msgout[12]; /* Messge out buffer (NOT USED) */
	39	unsigned char msgin[12]; /* Message in buffer */
	40	unsigned char sensecmdlen; /* Sense command len */
	41	unsigned long sensedatalen; /* Sense data len */
	42	unsigned char sensecmd[6]; /* Sense command */
	43	unsigned long contr_stat; /* Controller Status */
	44	unsigned long trans_bytes; /* tranfered bytes */
	45
	46	unsigned int priv;
	47	}ccb;
	48
	49	/*-----------------------------------------------------------
	50	**
	51	** SCSI constants.
	52	**
	53	**-----------------------------------------------------------
	54	*/
	55
	56	/*
	57	** Messages
	58	*/
	59
	60	#define M_COMPLETE (0x00)
	61	#define M_EXTENDED (0x01)
	62	#define M_SAVE_DP (0x02)
	63	#define M_RESTORE_DP (0x03)
	64	#define M_DISCONNECT (0x04)
	65	#define M_ID_ERROR (0x05)
	66	#define M_ABORT (0x06)
	67	#define M_REJECT (0x07)
	68	#define M_NOOP (0x08)
	69	#define M_PARITY (0x09)
	70	#define M_LCOMPLETE (0x0a)
	71	#define M_FCOMPLETE (0x0b)
	72	#define M_RESET (0x0c)
	73	#define M_ABORT_TAG (0x0d)
	74	#define M_CLEAR_QUEUE (0x0e)
	75	#define M_INIT_REC (0x0f)
	76	#define M_REL_REC (0x10)
	77	#define M_TERMINATE (0x11)
	78	#define M_SIMPLE_TAG (0x20)
	79	#define M_HEAD_TAG (0x21)
	80	#define M_ORDERED_TAG (0x22)
	81	#define M_IGN_RESIDUE (0x23)
53677ef1	82	#define M_IDENTIFY (0x80)
e85390dc WD	83
	84	#define M_X_MODIFY_DP (0x00)
	85	#define M_X_SYNC_REQ (0x01)
	86	#define M_X_WIDE_REQ (0x03)
	87	#define M_X_PPR_REQ (0x04)
	88
	89
	90	/*
	91	** Status
	92	*/
	93
	94	#define S_GOOD (0x00)
	95	#define S_CHECK_COND (0x02)
	96	#define S_COND_MET (0x04)
	97	#define S_BUSY (0x08)
	98	#define S_INT (0x10)
	99	#define S_INT_COND_MET (0x14)
	100	#define S_CONFLICT (0x18)
	101	#define S_TERMINATED (0x20)
	102	#define S_QUEUE_FULL (0x28)
	103	#define S_ILLEGAL (0xff)
	104	#define S_SENSE (0x80)
	105
	106	/*
	107	* Sense_keys
	108	*/
	109
	110	#define SENSE_NO_SENSE 0x0
	111	#define SENSE_RECOVERED_ERROR 0x1
	112	#define SENSE_NOT_READY 0x2
	113	#define SENSE_MEDIUM_ERROR 0x3
	114	#define SENSE_HARDWARE_ERROR 0x4
	115	#define SENSE_ILLEGAL_REQUEST 0x5
	116	#define SENSE_UNIT_ATTENTION 0x6
	117	#define SENSE_DATA_PROTECT 0x7
	118	#define SENSE_BLANK_CHECK 0x8
	119	#define SENSE_VENDOR_SPECIFIC 0x9
	120	#define SENSE_COPY_ABORTED 0xA
	121	#define SENSE_ABORTED_COMMAND 0xB
	122	#define SENSE_VOLUME_OVERFLOW 0xD
	123	#define SENSE_MISCOMPARE 0xE
	124
	125
	126	#define SCSI_CHANGE_DEF 0x40 /* Change Definition (Optional) */
	127	#define SCSI_COMPARE 0x39 /* Compare (O) */
	128	#define SCSI_COPY 0x18 /* Copy (O) */
	129	#define SCSI_COP_VERIFY 0x3A /* Copy and Verify (O) */
	130	#define SCSI_INQUIRY 0x12 /* Inquiry (MANDATORY) */
	131	#define SCSI_LOG_SELECT 0x4C /* Log Select (O) */
	132	#define SCSI_LOG_SENSE 0x4D /* Log Sense (O) */
	133	#define SCSI_MODE_SEL6 0x15 /* Mode Select 6-byte (Device Specific) */
	134	#define SCSI_MODE_SEL10 0x55 /* Mode Select 10-byte (Device Specific) */
	135	#define SCSI_MODE_SEN6 0x1A /* Mode Sense 6-byte (Device Specific) */
	136	#define SCSI_MODE_SEN10 0x5A /* Mode Sense 10-byte (Device Specific) */
	137	#define SCSI_READ_BUFF 0x3C /* Read Buffer (O) */
	138	#define SCSI_REQ_SENSE 0x03 /* Request Sense (MANDATORY) */
	139	#define SCSI_SEND_DIAG 0x1D /* Send Diagnostic (O) */
	140	#define SCSI_TST_U_RDY 0x00 /* Test Unit Ready (MANDATORY) */
	141	#define SCSI_WRITE_BUFF 0x3B /* Write Buffer (O) */
	142	/***************************************************************************
	143	* %%% Commands Unique to Direct Access Devices %%%
	144	***************************************************************************/
	145	#define SCSI_COMPARE 0x39 /* Compare (O) */
	146	#define SCSI_FORMAT 0x04 /* Format Unit (MANDATORY) */
147	#define SCSI_LCK_UN_CAC 0x36 /* Lock Unlock Cache (O) */
148	#define SCSI_PREFETCH 0x34 /* Prefetch (O) */
149	#define SCSI_MED_REMOVL 0x1E /* Prevent/Allow medium Removal (O) */
150	#define SCSI_READ6 0x08 /* Read 6-byte (MANDATORY) */
151	#define SCSI_READ10 0x28 /* Read 10-byte (MANDATORY) */
152	#define SCSI_RD_CAPAC 0x25 /* Read Capacity (MANDATORY) */
153	#define SCSI_RD_DEFECT 0x37 /* Read Defect Data (O) */
154	#define SCSI_READ_LONG 0x3E /* Read Long (O) */
155	#define SCSI_REASS_BLK 0x07 /* Reassign Blocks (O) */
156	#define SCSI_RCV_DIAG 0x1C /* Receive Diagnostic Results (O) */
157	#define SCSI_RELEASE 0x17 /* Release Unit (MANDATORY) */
158	#define SCSI_REZERO 0x01 /* Rezero Unit (O) */
159	#define SCSI_SRCH_DAT_E 0x31 /* Search Data Equal (O) */
160	#define SCSI_SRCH_DAT_H 0x30 /* Search Data High (O) */
161	#define SCSI_SRCH_DAT_L 0x32 /* Search Data Low (O) */
162	#define SCSI_SEEK6 0x0B /* Seek 6-Byte (O) */
163	#define SCSI_SEEK10 0x2B /* Seek 10-Byte (O) */
164	#define SCSI_SEND_DIAG 0x1D /* Send Diagnostics (MANDATORY) */
165	#define SCSI_SET_LIMIT 0x33 /* Set Limits (O) */
166	#define SCSI_START_STP 0x1B /* Start/Stop Unit (O) */
167	#define SCSI_SYNC_CACHE 0x35 /* Synchronize Cache (O) */
168	#define SCSI_VERIFY 0x2F /* Verify (O) */
169	#define SCSI_WRITE6 0x0A /* Write 6-Byte (MANDATORY) */
170	#define SCSI_WRITE10 0x2A /* Write 10-Byte (MANDATORY) */
171	#define SCSI_WRT_VERIFY 0x2E /* Write and Verify (O) */
172	#define SCSI_WRITE_LONG 0x3F /* Write Long (O) */
173	#define SCSI_WRITE_SAME 0x41 /* Write Same (O) */
174
175
176	/****************************************************************************
177	* decleration of functions which have to reside in the LowLevel Part Driver
178	*/
179
180	void scsi_print_error(ccb *pccb);
181	int scsi_exec(ccb *pccb);
182	void scsi_bus_reset(void);
183	void scsi_low_level_init(int busdevfunc);
184
185
186	/***************************************************************************
187	* functions residing inside cmd_scsi.c
188	*/
189	void scsi_init(void);
942e3143	190	void scsi_scan(int mode);
e85390dc WD	191
e85390dc WD	192
e85390dc WD	193	#define SCSI_IDENTIFY 0xC0 /* not used */
	194
	195	/* Hardware errors */
	196	#define SCSI_SEL_TIME_OUT 0x00000101 /* Selection time out */
	197	#define SCSI_HNS_TIME_OUT 0x00000102 /* Handshake */
53677ef1	198	#define SCSI_MA_TIME_OUT 0x00000103 /* Phase error */
e85390dc WD	199	#define SCSI_UNEXP_DIS 0x00000104 /* unexpected disconnect */
	200
	201	#define SCSI_INT_STATE 0x00010000 /* unknown Interrupt number is stored in 16 LSB */
	202
	203
e85390dc WD	204	#ifndef TRUE
	205	#define TRUE 1
	206	#endif
	207	#ifndef FALSE
	208	#define FALSE 0
	209	#endif
	210
e85390dc	211	#endif /* _SCSI_H */