tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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
21int atari_scsi_detect (Scsi_Host_Template *);
22const char *atari_scsi_info (struct Scsi_Host *);
23int atari_scsi_reset (Scsi_Cmnd *, unsigned int);
24#ifdef MODULE
25int atari_scsi_release (struct Scsi_Host *);
26#else
27#define atari_scsi_release NULL
28#endif
29
30/* The values for CMD_PER_LUN and CAN_QUEUE are somehow arbitrary. Higher
31 * values should work, too; try it! (but cmd_per_lun costs memory!) */
32
33/* But there seems to be a bug somewhere that requires CAN_QUEUE to be
34 * 2*CMD_PER_LUN. At least on a TT, no spurious timeouts seen since
35 * changed CMD_PER_LUN... */
36
37/* Note: The Falcon currently uses 8/1 setting due to unsolved problems with
38 * cmd_per_lun != 1 */
39
40#define ATARI_TT_CAN_QUEUE 16
41#define ATARI_TT_CMD_PER_LUN 8
42#define ATARI_TT_SG_TABLESIZE SG_ALL
43
44#define ATARI_FALCON_CAN_QUEUE 8
45#define ATARI_FALCON_CMD_PER_LUN 1
46#define ATARI_FALCON_SG_TABLESIZE SG_NONE
47
48#define DEFAULT_USE_TAGGED_QUEUING 0
49
50
51#define NCR5380_implementation_fields /* none */
52
53#define NCR5380_read(reg) atari_scsi_reg_read( reg )
54#define NCR5380_write(reg, value) atari_scsi_reg_write( reg, value )
55
56#define NCR5380_intr atari_scsi_intr
57#define NCR5380_queue_command atari_scsi_queue_command
58#define NCR5380_abort atari_scsi_abort
59#define NCR5380_proc_info atari_scsi_proc_info
60#define NCR5380_dma_read_setup(inst,d,c) atari_scsi_dma_setup (inst, d, c, 0)
61#define NCR5380_dma_write_setup(inst,d,c) atari_scsi_dma_setup (inst, d, c, 1)
62#define NCR5380_dma_residual(inst) atari_scsi_dma_residual( inst )
63#define NCR5380_dma_xfer_len(i,cmd,phase) \
64 atari_dma_xfer_len(cmd->SCp.this_residual,cmd,((phase) & SR_IO) ? 0 : 1)
65
66/* Debugging printk definitions:
67 *
68 * ARB -> arbitration
69 * ASEN -> auto-sense
70 * DMA -> DMA
71 * HSH -> PIO handshake
72 * INF -> information transfer
73 * INI -> initialization
74 * INT -> interrupt
75 * LNK -> linked commands
76 * MAIN -> NCR5380_main() control flow
77 * NDAT -> no data-out phase
78 * NWR -> no write commands
79 * PIO -> PIO transfers
80 * PDMA -> pseudo DMA (unused on Atari)
81 * QU -> queues
82 * RSL -> reselections
83 * SEL -> selections
84 * USL -> usleep cpde (unused on Atari)
85 * LBS -> last byte sent (unused on Atari)
86 * RSS -> restarting of selections
87 * EXT -> extended messages
88 * ABRT -> aborting and resetting
89 * TAG -> queue tag handling
90 * MER -> merging of consec. buffers
91 *
92 */
93
94#if NDEBUG & NDEBUG_ARBITRATION
95#define ARB_PRINTK(format, args...) \
96 printk(KERN_DEBUG format , ## args)
97#else
98#define ARB_PRINTK(format, args...)
99#endif
100#if NDEBUG & NDEBUG_AUTOSENSE
101#define ASEN_PRINTK(format, args...) \
102 printk(KERN_DEBUG format , ## args)
103#else
104#define ASEN_PRINTK(format, args...)
105#endif
106#if NDEBUG & NDEBUG_DMA
107#define DMA_PRINTK(format, args...) \
108 printk(KERN_DEBUG format , ## args)
109#else
110#define DMA_PRINTK(format, args...)
111#endif
112#if NDEBUG & NDEBUG_HANDSHAKE
113#define HSH_PRINTK(format, args...) \
114 printk(KERN_DEBUG format , ## args)
115#else
116#define HSH_PRINTK(format, args...)
117#endif
118#if NDEBUG & NDEBUG_INFORMATION
119#define INF_PRINTK(format, args...) \
120 printk(KERN_DEBUG format , ## args)
121#else
122#define INF_PRINTK(format, args...)
123#endif
124#if NDEBUG & NDEBUG_INIT
125#define INI_PRINTK(format, args...) \
126 printk(KERN_DEBUG format , ## args)
127#else
128#define INI_PRINTK(format, args...)
129#endif
130#if NDEBUG & NDEBUG_INTR
131#define INT_PRINTK(format, args...) \
132 printk(KERN_DEBUG format , ## args)
133#else
134#define INT_PRINTK(format, args...)
135#endif
136#if NDEBUG & NDEBUG_LINKED
137#define LNK_PRINTK(format, args...) \
138 printk(KERN_DEBUG format , ## args)
139#else
140#define LNK_PRINTK(format, args...)
141#endif
142#if NDEBUG & NDEBUG_MAIN
143#define MAIN_PRINTK(format, args...) \
144 printk(KERN_DEBUG format , ## args)
145#else
146#define MAIN_PRINTK(format, args...)
147#endif
148#if NDEBUG & NDEBUG_NO_DATAOUT
149#define NDAT_PRINTK(format, args...) \
150 printk(KERN_DEBUG format , ## args)
151#else
152#define NDAT_PRINTK(format, args...)
153#endif
154#if NDEBUG & NDEBUG_NO_WRITE
155#define NWR_PRINTK(format, args...) \
156 printk(KERN_DEBUG format , ## args)
157#else
158#define NWR_PRINTK(format, args...)
159#endif
160#if NDEBUG & NDEBUG_PIO
161#define PIO_PRINTK(format, args...) \
162 printk(KERN_DEBUG format , ## args)
163#else
164#define PIO_PRINTK(format, args...)
165#endif
166#if NDEBUG & NDEBUG_PSEUDO_DMA
167#define PDMA_PRINTK(format, args...) \
168 printk(KERN_DEBUG format , ## args)
169#else
170#define PDMA_PRINTK(format, args...)
171#endif
172#if NDEBUG & NDEBUG_QUEUES
173#define QU_PRINTK(format, args...) \
174 printk(KERN_DEBUG format , ## args)
175#else
176#define QU_PRINTK(format, args...)
177#endif
178#if NDEBUG & NDEBUG_RESELECTION
179#define RSL_PRINTK(format, args...) \
180 printk(KERN_DEBUG format , ## args)
181#else
182#define RSL_PRINTK(format, args...)
183#endif
184#if NDEBUG & NDEBUG_SELECTION
185#define SEL_PRINTK(format, args...) \
186 printk(KERN_DEBUG format , ## args)
187#else
188#define SEL_PRINTK(format, args...)
189#endif
190#if NDEBUG & NDEBUG_USLEEP
191#define USL_PRINTK(format, args...) \
192 printk(KERN_DEBUG format , ## args)
193#else
194#define USL_PRINTK(format, args...)
195#endif
196#if NDEBUG & NDEBUG_LAST_BYTE_SENT
197#define LBS_PRINTK(format, args...) \
198 printk(KERN_DEBUG format , ## args)
199#else
200#define LBS_PRINTK(format, args...)
201#endif
202#if NDEBUG & NDEBUG_RESTART_SELECT
203#define RSS_PRINTK(format, args...) \
204 printk(KERN_DEBUG format , ## args)
205#else
206#define RSS_PRINTK(format, args...)
207#endif
208#if NDEBUG & NDEBUG_EXTENDED
209#define EXT_PRINTK(format, args...) \
210 printk(KERN_DEBUG format , ## args)
211#else
212#define EXT_PRINTK(format, args...)
213#endif
214#if NDEBUG & NDEBUG_ABORT
215#define ABRT_PRINTK(format, args...) \
216 printk(KERN_DEBUG format , ## args)
217#else
218#define ABRT_PRINTK(format, args...)
219#endif
220#if NDEBUG & NDEBUG_TAGS
221#define TAG_PRINTK(format, args...) \
222 printk(KERN_DEBUG format , ## args)
223#else
224#define TAG_PRINTK(format, args...)
225#endif
226#if NDEBUG & NDEBUG_MERGING
227#define MER_PRINTK(format, args...) \
228 printk(KERN_DEBUG format , ## args)
229#else
230#define MER_PRINTK(format, args...)
231#endif
232
233/* conditional macros for NCR5380_print_{,phase,status} */
234
235#define NCR_PRINT(mask) \
236 ((NDEBUG & (mask)) ? NCR5380_print(instance) : (void)0)
237
238#define NCR_PRINT_PHASE(mask) \
239 ((NDEBUG & (mask)) ? NCR5380_print_phase(instance) : (void)0)
240
241#define NCR_PRINT_STATUS(mask) \
242 ((NDEBUG & (mask)) ? NCR5380_print_status(instance) : (void)0)
243
244
245#endif /* ndef ASM */
246#endif /* ATARI_SCSI_H */
247
248