blob: efadb8d567c255a443f030c940a2b322d7d2ced2 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
Christoph Hellwigd0be4a7d2005-10-31 18:31:40 +010021int atari_scsi_detect (struct scsi_host_template *);
Linus Torvalds1da177e2005-04-16 15:20:36 -070022const char *atari_scsi_info (struct Scsi_Host *);
23int atari_scsi_reset (Scsi_Cmnd *, unsigned int);
Linus Torvalds1da177e2005-04-16 15:20:36 -070024int atari_scsi_release (struct Scsi_Host *);
Linus Torvalds1da177e2005-04-16 15:20:36 -070025
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
Michael Schmitzfb810d12007-05-01 22:32:35 +020062/* 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
Linus Torvalds1da177e2005-04-16 15:20:36 -070088/* 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
Roman Zippel3130d902007-05-01 22:32:37 +0200116#define dprint(flg, format...) \
117({ \
118 if (NDEBUG & (flg)) \
119 printk(KERN_DEBUG format); \
120})
121
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122#define ARB_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200123 dprint(NDEBUG_ARBITRATION, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124#define ASEN_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200125 dprint(NDEBUG_AUTOSENSE, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126#define DMA_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200127 dprint(NDEBUG_DMA, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128#define HSH_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200129 dprint(NDEBUG_HANDSHAKE, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130#define INF_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200131 dprint(NDEBUG_INFORMATION, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132#define INI_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200133 dprint(NDEBUG_INIT, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134#define INT_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200135 dprint(NDEBUG_INTR, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136#define LNK_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200137 dprint(NDEBUG_LINKED, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138#define MAIN_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200139 dprint(NDEBUG_MAIN, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140#define NDAT_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200141 dprint(NDEBUG_NO_DATAOUT, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142#define NWR_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200143 dprint(NDEBUG_NO_WRITE, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144#define PIO_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200145 dprint(NDEBUG_PIO, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146#define PDMA_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200147 dprint(NDEBUG_PSEUDO_DMA, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148#define QU_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200149 dprint(NDEBUG_QUEUES, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150#define RSL_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200151 dprint(NDEBUG_RESELECTION, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152#define SEL_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200153 dprint(NDEBUG_SELECTION, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154#define USL_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200155 dprint(NDEBUG_USLEEP, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156#define LBS_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200157 dprint(NDEBUG_LAST_BYTE_SENT, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158#define RSS_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200159 dprint(NDEBUG_RESTART_SELECT, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160#define EXT_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200161 dprint(NDEBUG_EXTENDED, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162#define ABRT_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200163 dprint(NDEBUG_ABORT, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164#define TAG_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200165 dprint(NDEBUG_TAGS, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166#define MER_PRINTK(format, args...) \
Roman Zippel3130d902007-05-01 22:32:37 +0200167 dprint(NDEBUG_MERGING, format , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168
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