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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
Henne811c9362006-10-03 19:51:59 +020050static int sun3scsi_abort(struct scsi_cmnd *);
Christoph Hellwigd0be4a7d2005-10-31 18:31:40 +010051static int sun3scsi_detect (struct scsi_host_template *);
Linus Torvalds1da177e2005-04-16 15:20:36 -070052static const char *sun3scsi_info (struct Scsi_Host *);
Henne811c9362006-10-03 19:51:59 +020053static int sun3scsi_bus_reset(struct scsi_cmnd *);
54static int sun3scsi_queue_command(struct scsi_cmnd *,
55 void (*done)(struct scsi_cmnd *));
Linus Torvalds1da177e2005-04-16 15:20:36 -070056static int sun3scsi_release (struct Scsi_Host *);
57
58#ifndef CMD_PER_LUN
59#define CMD_PER_LUN 2
60#endif
61
62#ifndef CAN_QUEUE
63#define CAN_QUEUE 16
64#endif
65
66#ifndef SG_TABLESIZE
67#define SG_TABLESIZE SG_NONE
68#endif
69
70#ifndef MAX_TAGS
71#define MAX_TAGS 32
72#endif
73
74#ifndef USE_TAGGED_QUEUING
75#define USE_TAGGED_QUEUING 1
76#endif
77
78#include <scsi/scsicam.h>
79
80#ifdef SUN3_SCSI_VME
81#define SUN3_SCSI_NAME "Sun3 NCR5380 VME SCSI"
82#else
83#define SUN3_SCSI_NAME "Sun3 NCR5380 SCSI"
84#endif
85
86#ifndef HOSTS_C
87
88#define NCR5380_implementation_fields \
89 int port, ctrl
90
91#define NCR5380_local_declare() \
92 struct Scsi_Host *_instance
93
94#define NCR5380_setup(instance) \
95 _instance = instance
96
97#define NCR5380_read(reg) sun3scsi_read(reg)
98#define NCR5380_write(reg, value) sun3scsi_write(reg, value)
99
100#define NCR5380_intr sun3scsi_intr
101#define NCR5380_queue_command sun3scsi_queue_command
102#define NCR5380_bus_reset sun3scsi_bus_reset
103#define NCR5380_abort sun3scsi_abort
104#define NCR5380_proc_info sun3scsi_proc_info
105#define NCR5380_dma_xfer_len(i, cmd, phase) \
106 sun3scsi_dma_xfer_len(cmd->SCp.this_residual,cmd,((phase) & SR_IO) ? 0 : 1)
107
108#define NCR5380_dma_write_setup(instance, data, count) sun3scsi_dma_setup(data, count, 1)
109#define NCR5380_dma_read_setup(instance, data, count) sun3scsi_dma_setup(data, count, 0)
110#define NCR5380_dma_residual sun3scsi_dma_residual
111
112#define BOARD_NORMAL 0
113#define BOARD_NCR53C400 1
114
115/* additional registers - mainly DMA control regs */
116/* these start at regbase + 8 -- directly after the NCR regs */
117struct sun3_dma_regs {
118 unsigned short dma_addr_hi; /* vme only */
119 unsigned short dma_addr_lo; /* vme only */
120 unsigned short dma_count_hi; /* vme only */
121 unsigned short dma_count_lo; /* vme only */
122 unsigned short udc_data; /* udc dma data reg (obio only) */
123 unsigned short udc_addr; /* uda dma addr reg (obio only) */
124 unsigned short fifo_data; /* fifo data reg, holds extra byte on
125 odd dma reads */
126 unsigned short fifo_count;
127 unsigned short csr; /* control/status reg */
128 unsigned short bpack_hi; /* vme only */
129 unsigned short bpack_lo; /* vme only */
130 unsigned short ivect; /* vme only */
131 unsigned short fifo_count_hi; /* vme only */
132};
133
134/* ucd chip specific regs - live in dvma space */
135struct sun3_udc_regs {
136 unsigned short rsel; /* select regs to load */
137 unsigned short addr_hi; /* high word of addr */
138 unsigned short addr_lo; /* low word */
139 unsigned short count; /* words to be xfer'd */
140 unsigned short mode_hi; /* high word of channel mode */
141 unsigned short mode_lo; /* low word of channel mode */
142};
143
144/* addresses of the udc registers */
145#define UDC_MODE 0x38
146#define UDC_CSR 0x2e /* command/status */
147#define UDC_CHN_HI 0x26 /* chain high word */
148#define UDC_CHN_LO 0x22 /* chain lo word */
149#define UDC_CURA_HI 0x1a /* cur reg A high */
150#define UDC_CURA_LO 0x0a /* cur reg A low */
151#define UDC_CURB_HI 0x12 /* cur reg B high */
152#define UDC_CURB_LO 0x02 /* cur reg B low */
153#define UDC_MODE_HI 0x56 /* mode reg high */
154#define UDC_MODE_LO 0x52 /* mode reg low */
155#define UDC_COUNT 0x32 /* words to xfer */
156
157/* some udc commands */
158#define UDC_RESET 0
159#define UDC_CHN_START 0xa0 /* start chain */
160#define UDC_INT_ENABLE 0x32 /* channel 1 int on */
161
162/* udc mode words */
163#define UDC_MODE_HIWORD 0x40
164#define UDC_MODE_LSEND 0xc2
165#define UDC_MODE_LRECV 0xd2
166
167/* udc reg selections */
168#define UDC_RSEL_SEND 0x282
169#define UDC_RSEL_RECV 0x182
170
171/* bits in csr reg */
172#define CSR_DMA_ACTIVE 0x8000
173#define CSR_DMA_CONFLICT 0x4000
174#define CSR_DMA_BUSERR 0x2000
175
176#define CSR_FIFO_EMPTY 0x400 /* fifo flushed? */
177#define CSR_SDB_INT 0x200 /* sbc interrupt pending */
178#define CSR_DMA_INT 0x100 /* dma interrupt pending */
179
180#define CSR_LEFT 0xc0
181#define CSR_LEFT_3 0xc0
182#define CSR_LEFT_2 0x80
183#define CSR_LEFT_1 0x40
184#define CSR_PACK_ENABLE 0x20
185
186#define CSR_DMA_ENABLE 0x10
187
188#define CSR_SEND 0x8 /* 1 = send 0 = recv */
189#define CSR_FIFO 0x2 /* reset fifo */
190#define CSR_INTR 0x4 /* interrupt enable */
191#define CSR_SCSI 0x1
192
193#define VME_DATA24 0x3d00
194
195// debugging printk's, taken from atari_scsi.h
196/* Debugging printk definitions:
197 *
198 * ARB -> arbitration
199 * ASEN -> auto-sense
200 * DMA -> DMA
201 * HSH -> PIO handshake
202 * INF -> information transfer
203 * INI -> initialization
204 * INT -> interrupt
205 * LNK -> linked commands
206 * MAIN -> NCR5380_main() control flow
207 * NDAT -> no data-out phase
208 * NWR -> no write commands
209 * PIO -> PIO transfers
210 * PDMA -> pseudo DMA (unused on Atari)
211 * QU -> queues
212 * RSL -> reselections
213 * SEL -> selections
214 * USL -> usleep cpde (unused on Atari)
215 * LBS -> last byte sent (unused on Atari)
216 * RSS -> restarting of selections
217 * EXT -> extended messages
218 * ABRT -> aborting and resetting
219 * TAG -> queue tag handling
220 * MER -> merging of consec. buffers
221 *
222 */
223
Sam Creaseyc39e7ee2006-12-09 10:37:05 +0100224#include "NCR5380.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225
226#if NDEBUG & NDEBUG_ARBITRATION
227#define ARB_PRINTK(format, args...) \
228 printk(KERN_DEBUG format , ## args)
229#else
230#define ARB_PRINTK(format, args...)
231#endif
232#if NDEBUG & NDEBUG_AUTOSENSE
233#define ASEN_PRINTK(format, args...) \
234 printk(KERN_DEBUG format , ## args)
235#else
236#define ASEN_PRINTK(format, args...)
237#endif
238#if NDEBUG & NDEBUG_DMA
239#define DMA_PRINTK(format, args...) \
240 printk(KERN_DEBUG format , ## args)
241#else
242#define DMA_PRINTK(format, args...)
243#endif
244#if NDEBUG & NDEBUG_HANDSHAKE
245#define HSH_PRINTK(format, args...) \
246 printk(KERN_DEBUG format , ## args)
247#else
248#define HSH_PRINTK(format, args...)
249#endif
250#if NDEBUG & NDEBUG_INFORMATION
251#define INF_PRINTK(format, args...) \
252 printk(KERN_DEBUG format , ## args)
253#else
254#define INF_PRINTK(format, args...)
255#endif
256#if NDEBUG & NDEBUG_INIT
257#define INI_PRINTK(format, args...) \
258 printk(KERN_DEBUG format , ## args)
259#else
260#define INI_PRINTK(format, args...)
261#endif
262#if NDEBUG & NDEBUG_INTR
263#define INT_PRINTK(format, args...) \
264 printk(KERN_DEBUG format , ## args)
265#else
266#define INT_PRINTK(format, args...)
267#endif
268#if NDEBUG & NDEBUG_LINKED
269#define LNK_PRINTK(format, args...) \
270 printk(KERN_DEBUG format , ## args)
271#else
272#define LNK_PRINTK(format, args...)
273#endif
274#if NDEBUG & NDEBUG_MAIN
275#define MAIN_PRINTK(format, args...) \
276 printk(KERN_DEBUG format , ## args)
277#else
278#define MAIN_PRINTK(format, args...)
279#endif
280#if NDEBUG & NDEBUG_NO_DATAOUT
281#define NDAT_PRINTK(format, args...) \
282 printk(KERN_DEBUG format , ## args)
283#else
284#define NDAT_PRINTK(format, args...)
285#endif
286#if NDEBUG & NDEBUG_NO_WRITE
287#define NWR_PRINTK(format, args...) \
288 printk(KERN_DEBUG format , ## args)
289#else
290#define NWR_PRINTK(format, args...)
291#endif
292#if NDEBUG & NDEBUG_PIO
293#define PIO_PRINTK(format, args...) \
294 printk(KERN_DEBUG format , ## args)
295#else
296#define PIO_PRINTK(format, args...)
297#endif
298#if NDEBUG & NDEBUG_PSEUDO_DMA
299#define PDMA_PRINTK(format, args...) \
300 printk(KERN_DEBUG format , ## args)
301#else
302#define PDMA_PRINTK(format, args...)
303#endif
304#if NDEBUG & NDEBUG_QUEUES
305#define QU_PRINTK(format, args...) \
306 printk(KERN_DEBUG format , ## args)
307#else
308#define QU_PRINTK(format, args...)
309#endif
310#if NDEBUG & NDEBUG_RESELECTION
311#define RSL_PRINTK(format, args...) \
312 printk(KERN_DEBUG format , ## args)
313#else
314#define RSL_PRINTK(format, args...)
315#endif
316#if NDEBUG & NDEBUG_SELECTION
317#define SEL_PRINTK(format, args...) \
318 printk(KERN_DEBUG format , ## args)
319#else
320#define SEL_PRINTK(format, args...)
321#endif
322#if NDEBUG & NDEBUG_USLEEP
323#define USL_PRINTK(format, args...) \
324 printk(KERN_DEBUG format , ## args)
325#else
326#define USL_PRINTK(format, args...)
327#endif
328#if NDEBUG & NDEBUG_LAST_BYTE_SENT
329#define LBS_PRINTK(format, args...) \
330 printk(KERN_DEBUG format , ## args)
331#else
332#define LBS_PRINTK(format, args...)
333#endif
334#if NDEBUG & NDEBUG_RESTART_SELECT
335#define RSS_PRINTK(format, args...) \
336 printk(KERN_DEBUG format , ## args)
337#else
338#define RSS_PRINTK(format, args...)
339#endif
340#if NDEBUG & NDEBUG_EXTENDED
341#define EXT_PRINTK(format, args...) \
342 printk(KERN_DEBUG format , ## args)
343#else
344#define EXT_PRINTK(format, args...)
345#endif
346#if NDEBUG & NDEBUG_ABORT
347#define ABRT_PRINTK(format, args...) \
348 printk(KERN_DEBUG format , ## args)
349#else
350#define ABRT_PRINTK(format, args...)
351#endif
352#if NDEBUG & NDEBUG_TAGS
353#define TAG_PRINTK(format, args...) \
354 printk(KERN_DEBUG format , ## args)
355#else
356#define TAG_PRINTK(format, args...)
357#endif
358#if NDEBUG & NDEBUG_MERGING
359#define MER_PRINTK(format, args...) \
360 printk(KERN_DEBUG format , ## args)
361#else
362#define MER_PRINTK(format, args...)
363#endif
364
365/* conditional macros for NCR5380_print_{,phase,status} */
366
367#define NCR_PRINT(mask) \
368 ((NDEBUG & (mask)) ? NCR5380_print(instance) : (void)0)
369
370#define NCR_PRINT_PHASE(mask) \
371 ((NDEBUG & (mask)) ? NCR5380_print_phase(instance) : (void)0)
372
373#define NCR_PRINT_STATUS(mask) \
374 ((NDEBUG & (mask)) ? NCR5380_print_status(instance) : (void)0)
375
376
377
378#endif /* ndef HOSTS_C */
379#endif /* SUN3_NCR5380_H */
380