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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 *); |
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 |