1 /*
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: cumana_NCR5380.h,v $
34 */
35
36 #ifndef SUN3_NCR5380_H
37 #define SUN3_NCR5380_H
38
39 #define SUN3SCSI_PUBLIC_RELEASE 1
40
41 /*
42 * Int: level 2 autovector
43 * IO: type 1, base 0x00140000, 5 bits phys space: A<4..0>
44 */
45 #define IRQ_SUN3_SCSI 2
46 #define IOBASE_SUN3_SCSI 0x00140000
47
48 #define IOBASE_SUN3_VMESCSI 0xff200000
49
50 static int sun3scsi_abort (Scsi_Cmnd *);
51 static int sun3scsi_detect (Scsi_Host_Template *);
52 static const char *sun3scsi_info (struct Scsi_Host *);
53 static int sun3scsi_bus_reset(Scsi_Cmnd *);
54 static int sun3scsi_queue_command (Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
55 static int sun3scsi_release (struct Scsi_Host *);
56
57 #ifndef CMD_PER_LUN
58 #define CMD_PER_LUN 2
59 #endif
60
61 #ifndef CAN_QUEUE
62 #define CAN_QUEUE 16
63 #endif
64
65 #ifndef SG_TABLESIZE
66 #define SG_TABLESIZE SG_NONE
67 #endif
68
69 #ifndef MAX_TAGS
70 #define MAX_TAGS 32
71 #endif
72
73 #ifndef USE_TAGGED_QUEUING
74 #define USE_TAGGED_QUEUING 1
75 #endif
76
77 #include <scsi/scsicam.h>
78
79 #ifdef SUN3_SCSI_VME
80 #define SUN3_SCSI_NAME "Sun3 NCR5380 VME SCSI"
81 #else
82 #define SUN3_SCSI_NAME "Sun3 NCR5380 SCSI"
83 #endif
84
85 #ifndef HOSTS_C
86
87 #define NCR5380_implementation_fields \
88 int port, ctrl
89
90 #define NCR5380_local_declare() \
91 struct Scsi_Host *_instance
92
93 #define NCR5380_setup(instance) \
94 _instance = instance
95
96 #define NCR5380_read(reg) sun3scsi_read(reg)
97 #define NCR5380_write(reg, value) sun3scsi_write(reg, value)
98
99 #define NCR5380_intr sun3scsi_intr
100 #define NCR5380_queue_command sun3scsi_queue_command
101 #define NCR5380_bus_reset sun3scsi_bus_reset
102 #define NCR5380_abort sun3scsi_abort
103 #define NCR5380_proc_info sun3scsi_proc_info
104 #define NCR5380_dma_xfer_len(i, cmd, phase) \
105 sun3scsi_dma_xfer_len(cmd->SCp.this_residual,cmd,((phase) & SR_IO) ? 0 : 1)
106
107 #define NCR5380_dma_write_setup(instance, data, count) sun3scsi_dma_setup(data, count, 1)
108 #define NCR5380_dma_read_setup(instance, data, count) sun3scsi_dma_setup(data, count, 0)
109 #define NCR5380_dma_residual sun3scsi_dma_residual
110
111 #define BOARD_NORMAL 0
112 #define BOARD_NCR53C400 1
113
114 /* additional registers - mainly DMA control regs */
115 /* these start at regbase + 8 -- directly after the NCR regs */
116 struct sun3_dma_regs {
117 unsigned short dma_addr_hi; /* vme only */
118 unsigned short dma_addr_lo; /* vme only */
119 unsigned short dma_count_hi; /* vme only */
120 unsigned short dma_count_lo; /* vme only */
121 unsigned short udc_data; /* udc dma data reg (obio only) */
122 unsigned short udc_addr; /* uda dma addr reg (obio only) */
123 unsigned short fifo_data; /* fifo data reg, holds extra byte on
124 odd dma reads */
125 unsigned short fifo_count;
126 unsigned short csr; /* control/status reg */
127 unsigned short bpack_hi; /* vme only */
128 unsigned short bpack_lo; /* vme only */
129 unsigned short ivect; /* vme only */
130 unsigned short fifo_count_hi; /* vme only */
131 };
132
133 /* ucd chip specific regs - live in dvma space */
134 struct sun3_udc_regs {
135 unsigned short rsel; /* select regs to load */
136 unsigned short addr_hi; /* high word of addr */
137 unsigned short addr_lo; /* low word */
138 unsigned short count; /* words to be xfer'd */
139 unsigned short mode_hi; /* high word of channel mode */
140 unsigned short mode_lo; /* low word of channel mode */
141 };
142
143 /* addresses of the udc registers */
144 #define UDC_MODE 0x38
145 #define UDC_CSR 0x2e /* command/status */
146 #define UDC_CHN_HI 0x26 /* chain high word */
147 #define UDC_CHN_LO 0x22 /* chain lo word */
148 #define UDC_CURA_HI 0x1a /* cur reg A high */
149 #define UDC_CURA_LO 0x0a /* cur reg A low */
150 #define UDC_CURB_HI 0x12 /* cur reg B high */
151 #define UDC_CURB_LO 0x02 /* cur reg B low */
152 #define UDC_MODE_HI 0x56 /* mode reg high */
153 #define UDC_MODE_LO 0x52 /* mode reg low */
154 #define UDC_COUNT 0x32 /* words to xfer */
155
156 /* some udc commands */
157 #define UDC_RESET 0
158 #define UDC_CHN_START 0xa0 /* start chain */
159 #define UDC_INT_ENABLE 0x32 /* channel 1 int on */
160
161 /* udc mode words */
162 #define UDC_MODE_HIWORD 0x40
163 #define UDC_MODE_LSEND 0xc2
164 #define UDC_MODE_LRECV 0xd2
165
166 /* udc reg selections */
167 #define UDC_RSEL_SEND 0x282
168 #define UDC_RSEL_RECV 0x182
169
170 /* bits in csr reg */
171 #define CSR_DMA_ACTIVE 0x8000
172 #define CSR_DMA_CONFLICT 0x4000
173 #define CSR_DMA_BUSERR 0x2000
174
175 #define CSR_FIFO_EMPTY 0x400 /* fifo flushed? */
176 #define CSR_SDB_INT 0x200 /* sbc interrupt pending */
177 #define CSR_DMA_INT 0x100 /* dma interrupt pending */
178
179 #define CSR_LEFT 0xc0
180 #define CSR_LEFT_3 0xc0
181 #define CSR_LEFT_2 0x80
182 #define CSR_LEFT_1 0x40
183 #define CSR_PACK_ENABLE 0x20
184
185 #define CSR_DMA_ENABLE 0x10
186
187 #define CSR_SEND 0x8 /* 1 = send 0 = recv */
188 #define CSR_FIFO 0x2 /* reset fifo */
189 #define CSR_INTR 0x4 /* interrupt enable */
190 #define CSR_SCSI 0x1
191
192 #define VME_DATA24 0x3d00
193
194 // debugging printk's, taken from atari_scsi.h
195 /* Debugging printk definitions:
196 *
197 * ARB -> arbitration
198 * ASEN -> auto-sense
199 * DMA -> DMA
200 * HSH -> PIO handshake
201 * INF -> information transfer
202 * INI -> initialization
203 * INT -> interrupt
204 * LNK -> linked commands
205 * MAIN -> NCR5380_main() control flow
206 * NDAT -> no data-out phase
207 * NWR -> no write commands
208 * PIO -> PIO transfers
209 * PDMA -> pseudo DMA (unused on Atari)
210 * QU -> queues
211 * RSL -> reselections
212 * SEL -> selections
213 * USL -> usleep cpde (unused on Atari)
214 * LBS -> last byte sent (unused on Atari)
215 * RSS -> restarting of selections
216 * EXT -> extended messages
217 * ABRT -> aborting and resetting
218 * TAG -> queue tag handling
219 * MER -> merging of consec. buffers
220 *
221 */
222
223
224
225 #if NDEBUG & NDEBUG_ARBITRATION
226 #define ARB_PRINTK(format, args...) \
227 printk(KERN_DEBUG format , ## args)
228 #else
229 #define ARB_PRINTK(format, args...)
230 #endif
231 #if NDEBUG & NDEBUG_AUTOSENSE
232 #define ASEN_PRINTK(format, args...) \
233 printk(KERN_DEBUG format , ## args)
234 #else
235 #define ASEN_PRINTK(format, args...)
236 #endif
237 #if NDEBUG & NDEBUG_DMA
238 #define DMA_PRINTK(format, args...) \
239 printk(KERN_DEBUG format , ## args)
240 #else
241 #define DMA_PRINTK(format, args...)
242 #endif
243 #if NDEBUG & NDEBUG_HANDSHAKE
244 #define HSH_PRINTK(format, args...) \
245 printk(KERN_DEBUG format , ## args)
246 #else
247 #define HSH_PRINTK(format, args...)
248 #endif
249 #if NDEBUG & NDEBUG_INFORMATION
250 #define INF_PRINTK(format, args...) \
251 printk(KERN_DEBUG format , ## args)
252 #else
253 #define INF_PRINTK(format, args...)
254 #endif
255 #if NDEBUG & NDEBUG_INIT
256 #define INI_PRINTK(format, args...) \
257 printk(KERN_DEBUG format , ## args)
258 #else
259 #define INI_PRINTK(format, args...)
260 #endif
261 #if NDEBUG & NDEBUG_INTR
262 #define INT_PRINTK(format, args...) \
263 printk(KERN_DEBUG format , ## args)
264 #else
265 #define INT_PRINTK(format, args...)
266 #endif
267 #if NDEBUG & NDEBUG_LINKED
268 #define LNK_PRINTK(format, args...) \
269 printk(KERN_DEBUG format , ## args)
270 #else
271 #define LNK_PRINTK(format, args...)
272 #endif
273 #if NDEBUG & NDEBUG_MAIN
274 #define MAIN_PRINTK(format, args...) \
275 printk(KERN_DEBUG format , ## args)
276 #else
277 #define MAIN_PRINTK(format, args...)
278 #endif
279 #if NDEBUG & NDEBUG_NO_DATAOUT
280 #define NDAT_PRINTK(format, args...) \
281 printk(KERN_DEBUG format , ## args)
282 #else
283 #define NDAT_PRINTK(format, args...)
284 #endif
285 #if NDEBUG & NDEBUG_NO_WRITE
286 #define NWR_PRINTK(format, args...) \
287 printk(KERN_DEBUG format , ## args)
288 #else
289 #define NWR_PRINTK(format, args...)
290 #endif
291 #if NDEBUG & NDEBUG_PIO
292 #define PIO_PRINTK(format, args...) \
293 printk(KERN_DEBUG format , ## args)
294 #else
295 #define PIO_PRINTK(format, args...)
296 #endif
297 #if NDEBUG & NDEBUG_PSEUDO_DMA
298 #define PDMA_PRINTK(format, args...) \
299 printk(KERN_DEBUG format , ## args)
300 #else
301 #define PDMA_PRINTK(format, args...)
302 #endif
303 #if NDEBUG & NDEBUG_QUEUES
304 #define QU_PRINTK(format, args...) \
305 printk(KERN_DEBUG format , ## args)
306 #else
307 #define QU_PRINTK(format, args...)
308 #endif
309 #if NDEBUG & NDEBUG_RESELECTION
310 #define RSL_PRINTK(format, args...) \
311 printk(KERN_DEBUG format , ## args)
312 #else
313 #define RSL_PRINTK(format, args...)
314 #endif
315 #if NDEBUG & NDEBUG_SELECTION
316 #define SEL_PRINTK(format, args...) \
317 printk(KERN_DEBUG format , ## args)
318 #else
319 #define SEL_PRINTK(format, args...)
320 #endif
321 #if NDEBUG & NDEBUG_USLEEP
322 #define USL_PRINTK(format, args...) \
323 printk(KERN_DEBUG format , ## args)
324 #else
325 #define USL_PRINTK(format, args...)
326 #endif
327 #if NDEBUG & NDEBUG_LAST_BYTE_SENT
328 #define LBS_PRINTK(format, args...) \
329 printk(KERN_DEBUG format , ## args)
330 #else
331 #define LBS_PRINTK(format, args...)
332 #endif
333 #if NDEBUG & NDEBUG_RESTART_SELECT
334 #define RSS_PRINTK(format, args...) \
335 printk(KERN_DEBUG format , ## args)
336 #else
337 #define RSS_PRINTK(format, args...)
338 #endif
339 #if NDEBUG & NDEBUG_EXTENDED
340 #define EXT_PRINTK(format, args...) \
341 printk(KERN_DEBUG format , ## args)
342 #else
343 #define EXT_PRINTK(format, args...)
344 #endif
345 #if NDEBUG & NDEBUG_ABORT
346 #define ABRT_PRINTK(format, args...) \
347 printk(KERN_DEBUG format , ## args)
348 #else
349 #define ABRT_PRINTK(format, args...)
350 #endif
351 #if NDEBUG & NDEBUG_TAGS
352 #define TAG_PRINTK(format, args...) \
353 printk(KERN_DEBUG format , ## args)
354 #else
355 #define TAG_PRINTK(format, args...)
356 #endif
357 #if NDEBUG & NDEBUG_MERGING
358 #define MER_PRINTK(format, args...) \
359 printk(KERN_DEBUG format , ## args)
360 #else
361 #define MER_PRINTK(format, args...)
362 #endif
363
364 /* conditional macros for NCR5380_print_{,phase,status} */
365
366 #define NCR_PRINT(mask) \
367 ((NDEBUG & (mask)) ? NCR5380_print(instance) : (void)0)
368
369 #define NCR_PRINT_PHASE(mask) \
370 ((NDEBUG & (mask)) ? NCR5380_print_phase(instance) : (void)0)
371
372 #define NCR_PRINT_STATUS(mask) \
373 ((NDEBUG & (mask)) ? NCR5380_print_status(instance) : (void)0)
374
375
376
377 #endif /* ndef HOSTS_C */
378 #endif /* SUN3_NCR5380_H */
379
380
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