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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [scsi/] [sun3_scsi.h] - Blame information for rev 1765

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Line No. Rev Author Line
1 1275 phoenix 
/*
2 
 * Sun3 SCSI stuff by Erik Verbruggen (erik@bigmama.xtdnet.nl)
3 
 *
4 
 * Sun3 DMA additions by Sam Creasey (sammy@sammy.net)
5 
 *
6 
 * Adapted from mac_scsinew.h:
7 
 */
8 
/*
9 
 * Cumana Generic NCR5380 driver defines
10 
 *
11 
 * Copyright 1993, Drew Eckhardt
12 
 *      Visionary Computing
13 
 *      (Unix and Linux consulting and custom programming)
14 
 *      drew@colorado.edu
15 
 *      +1 (303) 440-4894
16 
 *
17 
 * ALPHA RELEASE 1.
18 
 *
19 
 * For more information, please consult
20 
 *
21 
 * NCR 5380 Family
22 
 * SCSI Protocol Controller
23 
 * Databook
24 
 *
25 
 * NCR Microelectronics
26 
 * 1635 Aeroplaza Drive
27 
 * Colorado Springs, CO 80916
28 
 * 1+ (719) 578-3400
29 
 * 1+ (800) 334-5454
30 
 */
31 
 
32 
/*
33 
 * $Log: not supported by cvs2svn $
34 
 */
35 
 
36 
#ifndef SUN3_NCR5380_H
37 
#define SUN3_NCR5380_H
38 
 
39 
#ifndef NULL
40 
#define NULL 0
41 
#endif
42 
 
43 
 
44 
#define SUN3SCSI_PUBLIC_RELEASE 1
45 
 
46 
/*
47 
 * Int: level 2 autovector
48 
 * IO: type 1, base 0x00140000, 5 bits phys space: A<4..0>
49 
 */
50 
#define IRQ_SUN3_SCSI 2
51 
#define IOBASE_SUN3_SCSI 0x00140000
52 
 
53 
#define IOBASE_SUN3_VMESCSI 0xff200000
54 
 
55 
static int sun3scsi_abort (Scsi_Cmnd *);
56 
static int sun3scsi_detect (Scsi_Host_Template *);
57 
static const char *sun3scsi_info (struct Scsi_Host *);
58 
static int sun3scsi_reset(Scsi_Cmnd *, unsigned int);
59 
static int sun3scsi_queue_command (Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
60 
static int sun3scsi_proc_info (char *buffer, char **start, off_t offset,
61 
                        int length, int hostno, int inout);
62 
#ifdef MODULE
63 
static int sun3scsi_release (struct Scsi_Host *);
64 
#else
65 
#define sun3scsi_release NULL
66 
#endif
67 
 
68 
#ifndef CMD_PER_LUN
69 
#define CMD_PER_LUN 2
70 
#endif
71 
 
72 
#ifndef CAN_QUEUE
73 
#define CAN_QUEUE 16
74 
#endif
75 
 
76 
#ifndef SG_TABLESIZE
77 
#define SG_TABLESIZE SG_NONE
78 
#endif
79 
 
80 
#ifndef MAX_TAGS
81 
#define MAX_TAGS 32
82 
#endif
83 
 
84 
#ifndef USE_TAGGED_QUEUING
85 
#define USE_TAGGED_QUEUING 1
86 
#endif
87 
 
88 
#include <scsi/scsicam.h>
89 
 
90 
#ifdef SUN3_SCSI_VME
91 
#define SUN3_SCSI_NAME "Sun3 NCR5380 VME SCSI"
92 
#else
93 
#define SUN3_SCSI_NAME "Sun3 NCR5380 SCSI"
94 
#endif
95 
 
96 
#define SUN3_NCR5380 {                                                  \
97 
.name =                 SUN3_SCSI_NAME,                                 \
98 
.detect =               sun3scsi_detect,                                \
99 
.release =              sun3scsi_release,       /* Release */           \
100 
.info =                 sun3scsi_info,                                  \
101 
.queuecommand =         sun3scsi_queue_command,                         \
102 
.abort =                sun3scsi_abort,                                 \
103 
.reset =                sun3scsi_reset,                                 \
104 
.can_queue =            CAN_QUEUE,              /* can queue */         \
105 
.this_id =              7,                      /* id */                \
106 
.sg_tablesize =         SG_TABLESIZE,           /* sg_tablesize */      \
107 
.cmd_per_lun =          CMD_PER_LUN,            /* cmd per lun */       \
108 
.unchecked_isa_dma =    0,                       /* unchecked_isa_dma */ \
109 
.use_clustering =       DISABLE_CLUSTERING                              \
110 
        }
111 
 
112 
#ifndef HOSTS_C
113 
 
114 
#define NCR5380_implementation_fields \
115 
    int port, ctrl
116 
 
117 
#define NCR5380_local_declare() \
118 
        struct Scsi_Host *_instance
119 
 
120 
#define NCR5380_setup(instance) \
121 
        _instance = instance
122 
 
123 
#define NCR5380_read(reg) sun3scsi_read(reg)
124 
#define NCR5380_write(reg, value) sun3scsi_write(reg, value)
125 
 
126 
#define NCR5380_intr sun3scsi_intr
127 
#define NCR5380_queue_command sun3scsi_queue_command
128 
#define NCR5380_reset sun3scsi_reset
129 
#define NCR5380_abort sun3scsi_abort
130 
#define NCR5380_proc_info sun3scsi_proc_info
131 
#define NCR5380_dma_xfer_len(i, cmd, phase) \
132 
        sun3scsi_dma_xfer_len(cmd->SCp.this_residual,cmd,((phase) & SR_IO) ? 0 : 1)
133 
 
134 
#define NCR5380_dma_write_setup(instance, data, count) sun3scsi_dma_setup(data, count, 1)
135 
#define NCR5380_dma_read_setup(instance, data, count) sun3scsi_dma_setup(data, count, 0)
136 
#define NCR5380_dma_residual sun3scsi_dma_residual
137 
 
138 
#define BOARD_NORMAL    0
139 
#define BOARD_NCR53C400 1
140 
 
141 
/* additional registers - mainly DMA control regs */
142 
/* these start at regbase + 8 -- directly after the NCR regs */
143 
struct sun3_dma_regs {
144 
        unsigned short dma_addr_hi; /* vme only */
145 
        unsigned short dma_addr_lo; /* vme only */
146 
        unsigned short dma_count_hi; /* vme only */
147 
        unsigned short dma_count_lo; /* vme only */
148 
        unsigned short udc_data; /* udc dma data reg (obio only) */
149 
        unsigned short udc_addr; /* uda dma addr reg (obio only) */
150 
        unsigned short fifo_data; /* fifo data reg, holds extra byte on
151 
                                     odd dma reads */
152 
        unsigned short fifo_count;
153 
        unsigned short csr; /* control/status reg */
154 
        unsigned short bpack_hi; /* vme only */
155 
        unsigned short bpack_lo; /* vme only */
156 
        unsigned short ivect; /* vme only */
157 
        unsigned short fifo_count_hi; /* vme only */
158 
};
159 
 
160 
/* ucd chip specific regs - live in dvma space */
161 
struct sun3_udc_regs {
162 
     unsigned short rsel; /* select regs to load */
163 
     unsigned short addr_hi; /* high word of addr */
164 
     unsigned short addr_lo; /* low word */
165 
     unsigned short count; /* words to be xfer'd */
166 
     unsigned short mode_hi; /* high word of channel mode */
167 
     unsigned short mode_lo; /* low word of channel mode */
168 
};
169 
 
170 
/* addresses of the udc registers */
171 
#define UDC_MODE 0x38
172 
#define UDC_CSR 0x2e /* command/status */
173 
#define UDC_CHN_HI 0x26 /* chain high word */
174 
#define UDC_CHN_LO 0x22 /* chain lo word */
175 
#define UDC_CURA_HI 0x1a /* cur reg A high */
176 
#define UDC_CURA_LO 0x0a /* cur reg A low */
177 
#define UDC_CURB_HI 0x12 /* cur reg B high */
178 
#define UDC_CURB_LO 0x02 /* cur reg B low */
179 
#define UDC_MODE_HI 0x56 /* mode reg high */
180 
#define UDC_MODE_LO 0x52 /* mode reg low */
181 
#define UDC_COUNT 0x32 /* words to xfer */
182 
 
183 
/* some udc commands */
184 
#define UDC_RESET 0
185 
#define UDC_CHN_START 0xa0 /* start chain */
186 
#define UDC_INT_ENABLE 0x32 /* channel 1 int on */
187 
 
188 
/* udc mode words */
189 
#define UDC_MODE_HIWORD 0x40
190 
#define UDC_MODE_LSEND 0xc2
191 
#define UDC_MODE_LRECV 0xd2
192 
 
193 
/* udc reg selections */
194 
#define UDC_RSEL_SEND 0x282
195 
#define UDC_RSEL_RECV 0x182
196 
 
197 
/* bits in csr reg */
198 
#define CSR_DMA_ACTIVE 0x8000
199 
#define CSR_DMA_CONFLICT 0x4000
200 
#define CSR_DMA_BUSERR 0x2000
201 
 
202 
#define CSR_FIFO_EMPTY 0x400 /* fifo flushed? */
203 
#define CSR_SDB_INT 0x200 /* sbc interrupt pending */
204 
#define CSR_DMA_INT 0x100 /* dma interrupt pending */
205 
 
206 
#define CSR_LEFT 0xc0
207 
#define CSR_LEFT_3 0xc0
208 
#define CSR_LEFT_2 0x80
209 
#define CSR_LEFT_1 0x40
210 
#define CSR_PACK_ENABLE 0x20
211 
 
212 
#define CSR_DMA_ENABLE 0x10
213 
 
214 
#define CSR_SEND 0x8 /* 1 = send  0 = recv */
215 
#define CSR_FIFO 0x2 /* reset fifo */
216 
#define CSR_INTR 0x4 /* interrupt enable */
217 
#define CSR_SCSI 0x1
218 
 
219 
#define VME_DATA24 0x3d00
220 
 
221 
// debugging printk's, taken from atari_scsi.h
222 
/* Debugging printk definitions:
223 
 *
224 
 *  ARB  -> arbitration
225 
 *  ASEN -> auto-sense
226 
 *  DMA  -> DMA
227 
 *  HSH  -> PIO handshake
228 
 *  INF  -> information transfer
229 
 *  INI  -> initialization
230 
 *  INT  -> interrupt
231 
 *  LNK  -> linked commands
232 
 *  MAIN -> NCR5380_main() control flow
233 
 *  NDAT -> no data-out phase
234 
 *  NWR  -> no write commands
235 
 *  PIO  -> PIO transfers
236 
 *  PDMA -> pseudo DMA (unused on Atari)
237 
 *  QU   -> queues
238 
 *  RSL  -> reselections
239 
 *  SEL  -> selections
240 
 *  USL  -> usleep cpde (unused on Atari)
241 
 *  LBS  -> last byte sent (unused on Atari)
242 
 *  RSS  -> restarting of selections
243 
 *  EXT  -> extended messages
244 
 *  ABRT -> aborting and resetting
245 
 *  TAG  -> queue tag handling
246 
 *  MER  -> merging of consec. buffers
247 
 *
248 
 */
249 
 
250 
 
251 
 
252 
#if NDEBUG & NDEBUG_ARBITRATION
253 
#define ARB_PRINTK(format, args...) \
254 
        printk(KERN_DEBUG format , ## args)
255 
#else
256 
#define ARB_PRINTK(format, args...)
257 
#endif
258 
#if NDEBUG & NDEBUG_AUTOSENSE
259 
#define ASEN_PRINTK(format, args...) \
260 
        printk(KERN_DEBUG format , ## args)
261 
#else
262 
#define ASEN_PRINTK(format, args...)
263 
#endif
264 
#if NDEBUG & NDEBUG_DMA
265 
#define DMA_PRINTK(format, args...) \
266 
        printk(KERN_DEBUG format , ## args)
267 
#else
268 
#define DMA_PRINTK(format, args...)
269 
#endif
270 
#if NDEBUG & NDEBUG_HANDSHAKE
271 
#define HSH_PRINTK(format, args...) \
272 
        printk(KERN_DEBUG format , ## args)
273 
#else
274 
#define HSH_PRINTK(format, args...)
275 
#endif
276 
#if NDEBUG & NDEBUG_INFORMATION
277 
#define INF_PRINTK(format, args...) \
278 
        printk(KERN_DEBUG format , ## args)
279 
#else
280 
#define INF_PRINTK(format, args...)
281 
#endif
282 
#if NDEBUG & NDEBUG_INIT
283 
#define INI_PRINTK(format, args...) \
284 
        printk(KERN_DEBUG format , ## args)
285 
#else
286 
#define INI_PRINTK(format, args...)
287 
#endif
288 
#if NDEBUG & NDEBUG_INTR
289 
#define INT_PRINTK(format, args...) \
290 
        printk(KERN_DEBUG format , ## args)
291 
#else
292 
#define INT_PRINTK(format, args...)
293 
#endif
294 
#if NDEBUG & NDEBUG_LINKED
295 
#define LNK_PRINTK(format, args...) \
296 
        printk(KERN_DEBUG format , ## args)
297 
#else
298 
#define LNK_PRINTK(format, args...)
299 
#endif
300 
#if NDEBUG & NDEBUG_MAIN
301 
#define MAIN_PRINTK(format, args...) \
302 
        printk(KERN_DEBUG format , ## args)
303 
#else
304 
#define MAIN_PRINTK(format, args...)
305 
#endif
306 
#if NDEBUG & NDEBUG_NO_DATAOUT
307 
#define NDAT_PRINTK(format, args...) \
308 
        printk(KERN_DEBUG format , ## args)
309 
#else
310 
#define NDAT_PRINTK(format, args...)
311 
#endif
312 
#if NDEBUG & NDEBUG_NO_WRITE
313 
#define NWR_PRINTK(format, args...) \
314 
        printk(KERN_DEBUG format , ## args)
315 
#else
316 
#define NWR_PRINTK(format, args...)
317 
#endif
318 
#if NDEBUG & NDEBUG_PIO
319 
#define PIO_PRINTK(format, args...) \
320 
        printk(KERN_DEBUG format , ## args)
321 
#else
322 
#define PIO_PRINTK(format, args...)
323 
#endif
324 
#if NDEBUG & NDEBUG_PSEUDO_DMA
325 
#define PDMA_PRINTK(format, args...) \
326 
        printk(KERN_DEBUG format , ## args)
327 
#else
328 
#define PDMA_PRINTK(format, args...)
329 
#endif
330 
#if NDEBUG & NDEBUG_QUEUES
331 
#define QU_PRINTK(format, args...) \
332 
        printk(KERN_DEBUG format , ## args)
333 
#else
334 
#define QU_PRINTK(format, args...)
335 
#endif
336 
#if NDEBUG & NDEBUG_RESELECTION
337 
#define RSL_PRINTK(format, args...) \
338 
        printk(KERN_DEBUG format , ## args)
339 
#else
340 
#define RSL_PRINTK(format, args...)
341 
#endif
342 
#if NDEBUG & NDEBUG_SELECTION
343 
#define SEL_PRINTK(format, args...) \
344 
        printk(KERN_DEBUG format , ## args)
345 
#else
346 
#define SEL_PRINTK(format, args...)
347 
#endif
348 
#if NDEBUG & NDEBUG_USLEEP
349 
#define USL_PRINTK(format, args...) \
350 
        printk(KERN_DEBUG format , ## args)
351 
#else
352 
#define USL_PRINTK(format, args...)
353 
#endif
354 
#if NDEBUG & NDEBUG_LAST_BYTE_SENT
355 
#define LBS_PRINTK(format, args...) \
356 
        printk(KERN_DEBUG format , ## args)
357 
#else
358 
#define LBS_PRINTK(format, args...)
359 
#endif
360 
#if NDEBUG & NDEBUG_RESTART_SELECT
361 
#define RSS_PRINTK(format, args...) \
362 
        printk(KERN_DEBUG format , ## args)
363 
#else
364 
#define RSS_PRINTK(format, args...)
365 
#endif
366 
#if NDEBUG & NDEBUG_EXTENDED
367 
#define EXT_PRINTK(format, args...) \
368 
        printk(KERN_DEBUG format , ## args)
369 
#else
370 
#define EXT_PRINTK(format, args...)
371 
#endif
372 
#if NDEBUG & NDEBUG_ABORT
373 
#define ABRT_PRINTK(format, args...) \
374 
        printk(KERN_DEBUG format , ## args)
375 
#else
376 
#define ABRT_PRINTK(format, args...)
377 
#endif
378 
#if NDEBUG & NDEBUG_TAGS
379 
#define TAG_PRINTK(format, args...) \
380 
        printk(KERN_DEBUG format , ## args)
381 
#else
382 
#define TAG_PRINTK(format, args...)
383 
#endif
384 
#if NDEBUG & NDEBUG_MERGING
385 
#define MER_PRINTK(format, args...) \
386 
        printk(KERN_DEBUG format , ## args)
387 
#else
388 
#define MER_PRINTK(format, args...)
389 
#endif
390 
 
391 
/* conditional macros for NCR5380_print_{,phase,status} */
392 
 
393 
#define NCR_PRINT(mask) \
394 
        ((NDEBUG & (mask)) ? NCR5380_print(instance) : (void)0)
395 
 
396 
#define NCR_PRINT_PHASE(mask) \
397 
        ((NDEBUG & (mask)) ? NCR5380_print_phase(instance) : (void)0)
398 
 
399 
#define NCR_PRINT_STATUS(mask) \
400 
        ((NDEBUG & (mask)) ? NCR5380_print_status(instance) : (void)0)
401 
 
402 
 
403 
 
404 
#endif /* ndef HOSTS_C */
405 
#endif /* SUN3_NCR5380_H */
406 
 

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