[net-next-2.6.git] / drivers / scsi / atari_scsi.h

/*
 * atari_scsi.h -- Header file for the Atari native SCSI driver
 *
 * Copyright 1994 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
 *
 * (Loosely based on the work of Robert De Vries' team)
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file COPYING in the main directory of this archive
 * for more details.
 *
 */


#ifndef ATARI_SCSI_H
#define ATARI_SCSI_H

/* (I_HAVE_OVERRUNS stuff removed) */

#ifndef ASM
int atari_scsi_detect (struct scsi_host_template *);
const char *atari_scsi_info (struct Scsi_Host *);
int atari_scsi_reset (Scsi_Cmnd *, unsigned int);
int atari_scsi_release (struct Scsi_Host *);

/* The values for CMD_PER_LUN and CAN_QUEUE are somehow arbitrary. Higher
 * values should work, too; try it! (but cmd_per_lun costs memory!) */

/* But there seems to be a bug somewhere that requires CAN_QUEUE to be
 * 2*CMD_PER_LUN. At least on a TT, no spurious timeouts seen since
 * changed CMD_PER_LUN... */

/* Note: The Falcon currently uses 8/1 setting due to unsolved problems with
 * cmd_per_lun != 1 */

#define ATARI_TT_CAN_QUEUE		16
#define ATARI_TT_CMD_PER_LUN		8
#define ATARI_TT_SG_TABLESIZE		SG_ALL

#define ATARI_FALCON_CAN_QUEUE		8
#define ATARI_FALCON_CMD_PER_LUN	1
#define ATARI_FALCON_SG_TABLESIZE	SG_NONE

#define	DEFAULT_USE_TAGGED_QUEUING	0


#define	NCR5380_implementation_fields	/* none */

#define NCR5380_read(reg)		  atari_scsi_reg_read( reg )
#define NCR5380_write(reg, value) atari_scsi_reg_write( reg, value )

#define NCR5380_intr atari_scsi_intr
#define NCR5380_queue_command atari_scsi_queue_command
#define NCR5380_abort atari_scsi_abort
#define NCR5380_proc_info atari_scsi_proc_info
#define NCR5380_dma_read_setup(inst,d,c) atari_scsi_dma_setup (inst, d, c, 0)
#define NCR5380_dma_write_setup(inst,d,c) atari_scsi_dma_setup (inst, d, c, 1)
#define NCR5380_dma_residual(inst) atari_scsi_dma_residual( inst )
#define	NCR5380_dma_xfer_len(i,cmd,phase) \
	atari_dma_xfer_len(cmd->SCp.this_residual,cmd,((phase) & SR_IO) ? 0 : 1)

/* former generic SCSI error handling stuff */

#define SCSI_ABORT_SNOOZE 0
#define SCSI_ABORT_SUCCESS 1
#define SCSI_ABORT_PENDING 2
#define SCSI_ABORT_BUSY 3
#define SCSI_ABORT_NOT_RUNNING 4
#define SCSI_ABORT_ERROR 5

#define SCSI_RESET_SNOOZE 0
#define SCSI_RESET_PUNT 1
#define SCSI_RESET_SUCCESS 2
#define SCSI_RESET_PENDING 3
#define SCSI_RESET_WAKEUP 4
#define SCSI_RESET_NOT_RUNNING 5
#define SCSI_RESET_ERROR 6

#define SCSI_RESET_SYNCHRONOUS		0x01
#define SCSI_RESET_ASYNCHRONOUS		0x02
#define SCSI_RESET_SUGGEST_BUS_RESET	0x04
#define SCSI_RESET_SUGGEST_HOST_RESET	0x08

#define SCSI_RESET_BUS_RESET 0x100
#define SCSI_RESET_HOST_RESET 0x200
#define SCSI_RESET_ACTION   0xff

/* Debugging printk definitions:
 *
 *  ARB  -> arbitration
 *  ASEN -> auto-sense
 *  DMA  -> DMA
 *  HSH  -> PIO handshake
 *  INF  -> information transfer
 *  INI  -> initialization
 *  INT  -> interrupt
 *  LNK  -> linked commands
 *  MAIN -> NCR5380_main() control flow
 *  NDAT -> no data-out phase
 *  NWR  -> no write commands
 *  PIO  -> PIO transfers
 *  PDMA -> pseudo DMA (unused on Atari)
 *  QU   -> queues
 *  RSL  -> reselections
 *  SEL  -> selections
 *  USL  -> usleep cpde (unused on Atari)
 *  LBS  -> last byte sent (unused on Atari)
 *  RSS  -> restarting of selections
 *  EXT  -> extended messages
 *  ABRT -> aborting and resetting
 *  TAG  -> queue tag handling
 *  MER  -> merging of consec. buffers
 *
 */

#define dprint(flg, format...)			\
({						\
	if (NDEBUG & (flg))			\
		printk(KERN_DEBUG format);	\
})

#define ARB_PRINTK(format, args...) \
	dprint(NDEBUG_ARBITRATION, format , ## args)
#define ASEN_PRINTK(format, args...) \
	dprint(NDEBUG_AUTOSENSE, format , ## args)
#define DMA_PRINTK(format, args...) \
	dprint(NDEBUG_DMA, format , ## args)
#define HSH_PRINTK(format, args...) \
	dprint(NDEBUG_HANDSHAKE, format , ## args)
#define INF_PRINTK(format, args...) \
	dprint(NDEBUG_INFORMATION, format , ## args)
#define INI_PRINTK(format, args...) \
	dprint(NDEBUG_INIT, format , ## args)
#define INT_PRINTK(format, args...) \
	dprint(NDEBUG_INTR, format , ## args)
#define LNK_PRINTK(format, args...) \
	dprint(NDEBUG_LINKED, format , ## args)
#define MAIN_PRINTK(format, args...) \
	dprint(NDEBUG_MAIN, format , ## args)
#define NDAT_PRINTK(format, args...) \
	dprint(NDEBUG_NO_DATAOUT, format , ## args)
#define NWR_PRINTK(format, args...) \
	dprint(NDEBUG_NO_WRITE, format , ## args)
#define PIO_PRINTK(format, args...) \
	dprint(NDEBUG_PIO, format , ## args)
#define PDMA_PRINTK(format, args...) \
	dprint(NDEBUG_PSEUDO_DMA, format , ## args)
#define QU_PRINTK(format, args...) \
	dprint(NDEBUG_QUEUES, format , ## args)
#define RSL_PRINTK(format, args...) \
	dprint(NDEBUG_RESELECTION, format , ## args)
#define SEL_PRINTK(format, args...) \
	dprint(NDEBUG_SELECTION, format , ## args)
#define USL_PRINTK(format, args...) \
	dprint(NDEBUG_USLEEP, format , ## args)
#define LBS_PRINTK(format, args...) \
	dprint(NDEBUG_LAST_BYTE_SENT, format , ## args)
#define RSS_PRINTK(format, args...) \
	dprint(NDEBUG_RESTART_SELECT, format , ## args)
#define EXT_PRINTK(format, args...) \
	dprint(NDEBUG_EXTENDED, format , ## args)
#define ABRT_PRINTK(format, args...) \
	dprint(NDEBUG_ABORT, format , ## args)
#define TAG_PRINTK(format, args...) \
	dprint(NDEBUG_TAGS, format , ## args)
#define MER_PRINTK(format, args...) \
	dprint(NDEBUG_MERGING, format , ## args)

/* conditional macros for NCR5380_print_{,phase,status} */

#define NCR_PRINT(mask)	\
	((NDEBUG & (mask)) ? NCR5380_print(instance) : (void)0)

#define NCR_PRINT_PHASE(mask) \
	((NDEBUG & (mask)) ? NCR5380_print_phase(instance) : (void)0)

#define NCR_PRINT_STATUS(mask) \
	((NDEBUG & (mask)) ? NCR5380_print_status(instance) : (void)0)


#endif /* ndef ASM */
#endif /* ATARI_SCSI_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* atari_scsi.h -- Header file for the Atari native SCSI driver
	3	*
	4	* Copyright 1994 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
	5	*
	6	* (Loosely based on the work of Robert De Vries' team)
	7	*
	8	* This file is subject to the terms and conditions of the GNU General Public
	9	* License. See the file COPYING in the main directory of this archive
	10	* for more details.
	11	*
	12	*/
	13
	14
	15	#ifndef ATARI_SCSI_H
	16	#define ATARI_SCSI_H
	17
	18	/* (I_HAVE_OVERRUNS stuff removed) */
	19
	20	#ifndef ASM
d0be4a7d	21	int atari_scsi_detect (struct scsi_host_template *);
1da177e4 LT	22	const char atari_scsi_info (struct Scsi_Host );
1da177e4 LT	23	int atari_scsi_reset (Scsi_Cmnd *, unsigned int);
1da177e4	24	int atari_scsi_release (struct Scsi_Host *);
1da177e4 LT	25
	26	/* The values for CMD_PER_LUN and CAN_QUEUE are somehow arbitrary. Higher
	27	* values should work, too; try it! (but cmd_per_lun costs memory!) */
	28
	29	/* But there seems to be a bug somewhere that requires CAN_QUEUE to be
	30	* 2*CMD_PER_LUN. At least on a TT, no spurious timeouts seen since
	31	* changed CMD_PER_LUN... */
	32
	33	/* Note: The Falcon currently uses 8/1 setting due to unsolved problems with
	34	* cmd_per_lun != 1 */
	35
	36	#define ATARI_TT_CAN_QUEUE 16
	37	#define ATARI_TT_CMD_PER_LUN 8
	38	#define ATARI_TT_SG_TABLESIZE SG_ALL
	39
	40	#define ATARI_FALCON_CAN_QUEUE 8
	41	#define ATARI_FALCON_CMD_PER_LUN 1
	42	#define ATARI_FALCON_SG_TABLESIZE SG_NONE
	43
	44	#define DEFAULT_USE_TAGGED_QUEUING 0
	45
	46
	47	#define NCR5380_implementation_fields /* none */
	48
	49	#define NCR5380_read(reg) atari_scsi_reg_read( reg )
	50	#define NCR5380_write(reg, value) atari_scsi_reg_write( reg, value )
	51
	52	#define NCR5380_intr atari_scsi_intr
	53	#define NCR5380_queue_command atari_scsi_queue_command
	54	#define NCR5380_abort atari_scsi_abort
	55	#define NCR5380_proc_info atari_scsi_proc_info
	56	#define NCR5380_dma_read_setup(inst,d,c) atari_scsi_dma_setup (inst, d, c, 0)
	57	#define NCR5380_dma_write_setup(inst,d,c) atari_scsi_dma_setup (inst, d, c, 1)
	58	#define NCR5380_dma_residual(inst) atari_scsi_dma_residual( inst )
	59	#define NCR5380_dma_xfer_len(i,cmd,phase) \
	60	atari_dma_xfer_len(cmd->SCp.this_residual,cmd,((phase) & SR_IO) ? 0 : 1)
	61
fb810d12 MS	62	/* former generic SCSI error handling stuff */
	63
	64	#define SCSI_ABORT_SNOOZE 0
	65	#define SCSI_ABORT_SUCCESS 1
	66	#define SCSI_ABORT_PENDING 2
	67	#define SCSI_ABORT_BUSY 3
	68	#define SCSI_ABORT_NOT_RUNNING 4
	69	#define SCSI_ABORT_ERROR 5
	70
	71	#define SCSI_RESET_SNOOZE 0
	72	#define SCSI_RESET_PUNT 1
	73	#define SCSI_RESET_SUCCESS 2
	74	#define SCSI_RESET_PENDING 3
	75	#define SCSI_RESET_WAKEUP 4
	76	#define SCSI_RESET_NOT_RUNNING 5
	77	#define SCSI_RESET_ERROR 6
	78
	79	#define SCSI_RESET_SYNCHRONOUS 0x01
	80	#define SCSI_RESET_ASYNCHRONOUS 0x02
	81	#define SCSI_RESET_SUGGEST_BUS_RESET 0x04
	82	#define SCSI_RESET_SUGGEST_HOST_RESET 0x08
	83
	84	#define SCSI_RESET_BUS_RESET 0x100
	85	#define SCSI_RESET_HOST_RESET 0x200
	86	#define SCSI_RESET_ACTION 0xff
	87
1da177e4 LT	88	/* Debugging printk definitions:
	89	*
	90	* ARB -> arbitration
	91	* ASEN -> auto-sense
	92	* DMA -> DMA
	93	* HSH -> PIO handshake
	94	* INF -> information transfer
	95	* INI -> initialization
	96	* INT -> interrupt
	97	* LNK -> linked commands
	98	* MAIN -> NCR5380_main() control flow
	99	* NDAT -> no data-out phase
	100	* NWR -> no write commands
	101	* PIO -> PIO transfers
	102	* PDMA -> pseudo DMA (unused on Atari)
	103	* QU -> queues
	104	* RSL -> reselections
	105	* SEL -> selections
	106	* USL -> usleep cpde (unused on Atari)
	107	* LBS -> last byte sent (unused on Atari)
	108	* RSS -> restarting of selections
	109	* EXT -> extended messages
	110	* ABRT -> aborting and resetting
	111	* TAG -> queue tag handling
	112	* MER -> merging of consec. buffers
	113	*
	114	*/
	115
3130d905 RZ	116	#define dprint(flg, format...) \
	117	({ \
	118	if (NDEBUG & (flg)) \
	119	printk(KERN_DEBUG format); \
	120	})
	121
1da177e4	122	#define ARB_PRINTK(format, args...) \
3130d905	123	dprint(NDEBUG_ARBITRATION, format , ## args)
1da177e4	124	#define ASEN_PRINTK(format, args...) \
3130d905	125	dprint(NDEBUG_AUTOSENSE, format , ## args)
1da177e4	126	#define DMA_PRINTK(format, args...) \
3130d905	127	dprint(NDEBUG_DMA, format , ## args)
1da177e4	128	#define HSH_PRINTK(format, args...) \
3130d905	129	dprint(NDEBUG_HANDSHAKE, format , ## args)
1da177e4	130	#define INF_PRINTK(format, args...) \
3130d905	131	dprint(NDEBUG_INFORMATION, format , ## args)
1da177e4	132	#define INI_PRINTK(format, args...) \
3130d905	133	dprint(NDEBUG_INIT, format , ## args)
1da177e4	134	#define INT_PRINTK(format, args...) \
3130d905	135	dprint(NDEBUG_INTR, format , ## args)
1da177e4	136	#define LNK_PRINTK(format, args...) \
3130d905	137	dprint(NDEBUG_LINKED, format , ## args)
1da177e4	138	#define MAIN_PRINTK(format, args...) \
3130d905	139	dprint(NDEBUG_MAIN, format , ## args)
1da177e4	140	#define NDAT_PRINTK(format, args...) \
3130d905	141	dprint(NDEBUG_NO_DATAOUT, format , ## args)
1da177e4	142	#define NWR_PRINTK(format, args...) \
3130d905	143	dprint(NDEBUG_NO_WRITE, format , ## args)
1da177e4	144	#define PIO_PRINTK(format, args...) \
3130d905	145	dprint(NDEBUG_PIO, format , ## args)
1da177e4	146	#define PDMA_PRINTK(format, args...) \
3130d905	147	dprint(NDEBUG_PSEUDO_DMA, format , ## args)
1da177e4	148	#define QU_PRINTK(format, args...) \
3130d905	149	dprint(NDEBUG_QUEUES, format , ## args)
1da177e4	150	#define RSL_PRINTK(format, args...) \
3130d905	151	dprint(NDEBUG_RESELECTION, format , ## args)
1da177e4	152	#define SEL_PRINTK(format, args...) \
3130d905	153	dprint(NDEBUG_SELECTION, format , ## args)
1da177e4	154	#define USL_PRINTK(format, args...) \
3130d905	155	dprint(NDEBUG_USLEEP, format , ## args)
1da177e4	156	#define LBS_PRINTK(format, args...) \
3130d905	157	dprint(NDEBUG_LAST_BYTE_SENT, format , ## args)
1da177e4	158	#define RSS_PRINTK(format, args...) \
3130d905	159	dprint(NDEBUG_RESTART_SELECT, format , ## args)
1da177e4	160	#define EXT_PRINTK(format, args...) \
3130d905	161	dprint(NDEBUG_EXTENDED, format , ## args)
1da177e4	162	#define ABRT_PRINTK(format, args...) \
3130d905	163	dprint(NDEBUG_ABORT, format , ## args)
1da177e4	164	#define TAG_PRINTK(format, args...) \
3130d905	165	dprint(NDEBUG_TAGS, format , ## args)
1da177e4	166	#define MER_PRINTK(format, args...) \
3130d905	167	dprint(NDEBUG_MERGING, format , ## args)
1da177e4 LT	168
	169	/* conditional macros for NCR5380_print_{,phase,status} */
	170
	171	#define NCR_PRINT(mask) \
	172	((NDEBUG & (mask)) ? NCR5380_print(instance) : (void)0)
	173
	174	#define NCR_PRINT_PHASE(mask) \
	175	((NDEBUG & (mask)) ? NCR5380_print_phase(instance) : (void)0)
	176
	177	#define NCR_PRINT_STATUS(mask) \
	178	((NDEBUG & (mask)) ? NCR5380_print_status(instance) : (void)0)
	179
	180
	181	#endif /* ndef ASM */
	182	#endif /* ATARI_SCSI_H */
	183
	184