2 * Sun3 SCSI stuff by Erik Verbruggen (erik@bigmama.xtdnet.nl)
4 * Sun3 DMA additions by Sam Creasey (sammy@sammy.net)
6 * Adapted from mac_scsinew.h:
9 * Cumana Generic NCR5380 driver defines
11 * Copyright 1993, Drew Eckhardt
13 * (Unix and Linux consulting and custom programming)
19 * For more information, please consult
22 * SCSI Protocol Controller
25 * NCR Microelectronics
26 * 1635 Aeroplaza Drive
27 * Colorado Springs, CO 80916
33 * $Log: cumana_NCR5380.h,v $
36 #ifndef SUN3_NCR5380_H
37 #define SUN3_NCR5380_H
44 #define SUN3SCSI_PUBLIC_RELEASE 1
47 * Int: level 2 autovector
48 * IO: type 1, base 0x00140000, 5 bits phys space: A<4..0>
50 #define IRQ_SUN3_SCSI 2
51 #define IOBASE_SUN3_SCSI 0x00140000
53 #define IOBASE_SUN3_VMESCSI 0xff200000
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);
63 static int sun3scsi_release (struct Scsi_Host *);
65 #define sun3scsi_release NULL
77 #define SG_TABLESIZE SG_NONE
84 #ifndef USE_TAGGED_QUEUING
85 #define USE_TAGGED_QUEUING 1
88 #include <scsi/scsicam.h>
91 #define SUN3_SCSI_NAME "Sun3 NCR5380 VME SCSI"
93 #define SUN3_SCSI_NAME "Sun3 NCR5380 SCSI"
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 \
114 #define NCR5380_implementation_fields \
117 #define NCR5380_local_declare() \
118 struct Scsi_Host *_instance
120 #define NCR5380_setup(instance) \
123 #define NCR5380_read(reg) sun3scsi_read(reg)
124 #define NCR5380_write(reg, value) sun3scsi_write(reg, value)
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)
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
138 #define BOARD_NORMAL 0
139 #define BOARD_NCR53C400 1
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
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 */
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 */
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 */
183 /* some udc commands */
185 #define UDC_CHN_START 0xa0 /* start chain */
186 #define UDC_INT_ENABLE 0x32 /* channel 1 int on */
189 #define UDC_MODE_HIWORD 0x40
190 #define UDC_MODE_LSEND 0xc2
191 #define UDC_MODE_LRECV 0xd2
193 /* udc reg selections */
194 #define UDC_RSEL_SEND 0x282
195 #define UDC_RSEL_RECV 0x182
197 /* bits in csr reg */
198 #define CSR_DMA_ACTIVE 0x8000
199 #define CSR_DMA_CONFLICT 0x4000
200 #define CSR_DMA_BUSERR 0x2000
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 */
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
212 #define CSR_DMA_ENABLE 0x10
214 #define CSR_SEND 0x8 /* 1 = send 0 = recv */
215 #define CSR_FIFO 0x2 /* reset fifo */
216 #define CSR_INTR 0x4 /* interrupt enable */
219 #define VME_DATA24 0x3d00
221 // debugging printk's, taken from atari_scsi.h
222 /* Debugging printk definitions:
227 * HSH -> PIO handshake
228 * INF -> information transfer
229 * INI -> initialization
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)
238 * RSL -> reselections
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
252 #if NDEBUG & NDEBUG_ARBITRATION
253 #define ARB_PRINTK(format, args...) \
254 printk(KERN_DEBUG format , ## args)
256 #define ARB_PRINTK(format, args...)
258 #if NDEBUG & NDEBUG_AUTOSENSE
259 #define ASEN_PRINTK(format, args...) \
260 printk(KERN_DEBUG format , ## args)
262 #define ASEN_PRINTK(format, args...)
264 #if NDEBUG & NDEBUG_DMA
265 #define DMA_PRINTK(format, args...) \
266 printk(KERN_DEBUG format , ## args)
268 #define DMA_PRINTK(format, args...)
270 #if NDEBUG & NDEBUG_HANDSHAKE
271 #define HSH_PRINTK(format, args...) \
272 printk(KERN_DEBUG format , ## args)
274 #define HSH_PRINTK(format, args...)
276 #if NDEBUG & NDEBUG_INFORMATION
277 #define INF_PRINTK(format, args...) \
278 printk(KERN_DEBUG format , ## args)
280 #define INF_PRINTK(format, args...)
282 #if NDEBUG & NDEBUG_INIT
283 #define INI_PRINTK(format, args...) \
284 printk(KERN_DEBUG format , ## args)
286 #define INI_PRINTK(format, args...)
288 #if NDEBUG & NDEBUG_INTR
289 #define INT_PRINTK(format, args...) \
290 printk(KERN_DEBUG format , ## args)
292 #define INT_PRINTK(format, args...)
294 #if NDEBUG & NDEBUG_LINKED
295 #define LNK_PRINTK(format, args...) \
296 printk(KERN_DEBUG format , ## args)
298 #define LNK_PRINTK(format, args...)
300 #if NDEBUG & NDEBUG_MAIN
301 #define MAIN_PRINTK(format, args...) \
302 printk(KERN_DEBUG format , ## args)
304 #define MAIN_PRINTK(format, args...)
306 #if NDEBUG & NDEBUG_NO_DATAOUT
307 #define NDAT_PRINTK(format, args...) \
308 printk(KERN_DEBUG format , ## args)
310 #define NDAT_PRINTK(format, args...)
312 #if NDEBUG & NDEBUG_NO_WRITE
313 #define NWR_PRINTK(format, args...) \
314 printk(KERN_DEBUG format , ## args)
316 #define NWR_PRINTK(format, args...)
318 #if NDEBUG & NDEBUG_PIO
319 #define PIO_PRINTK(format, args...) \
320 printk(KERN_DEBUG format , ## args)
322 #define PIO_PRINTK(format, args...)
324 #if NDEBUG & NDEBUG_PSEUDO_DMA
325 #define PDMA_PRINTK(format, args...) \
326 printk(KERN_DEBUG format , ## args)
328 #define PDMA_PRINTK(format, args...)
330 #if NDEBUG & NDEBUG_QUEUES
331 #define QU_PRINTK(format, args...) \
332 printk(KERN_DEBUG format , ## args)
334 #define QU_PRINTK(format, args...)
336 #if NDEBUG & NDEBUG_RESELECTION
337 #define RSL_PRINTK(format, args...) \
338 printk(KERN_DEBUG format , ## args)
340 #define RSL_PRINTK(format, args...)
342 #if NDEBUG & NDEBUG_SELECTION
343 #define SEL_PRINTK(format, args...) \
344 printk(KERN_DEBUG format , ## args)
346 #define SEL_PRINTK(format, args...)
348 #if NDEBUG & NDEBUG_USLEEP
349 #define USL_PRINTK(format, args...) \
350 printk(KERN_DEBUG format , ## args)
352 #define USL_PRINTK(format, args...)
354 #if NDEBUG & NDEBUG_LAST_BYTE_SENT
355 #define LBS_PRINTK(format, args...) \
356 printk(KERN_DEBUG format , ## args)
358 #define LBS_PRINTK(format, args...)
360 #if NDEBUG & NDEBUG_RESTART_SELECT
361 #define RSS_PRINTK(format, args...) \
362 printk(KERN_DEBUG format , ## args)
364 #define RSS_PRINTK(format, args...)
366 #if NDEBUG & NDEBUG_EXTENDED
367 #define EXT_PRINTK(format, args...) \
368 printk(KERN_DEBUG format , ## args)
370 #define EXT_PRINTK(format, args...)
372 #if NDEBUG & NDEBUG_ABORT
373 #define ABRT_PRINTK(format, args...) \
374 printk(KERN_DEBUG format , ## args)
376 #define ABRT_PRINTK(format, args...)
378 #if NDEBUG & NDEBUG_TAGS
379 #define TAG_PRINTK(format, args...) \
380 printk(KERN_DEBUG format , ## args)
382 #define TAG_PRINTK(format, args...)
384 #if NDEBUG & NDEBUG_MERGING
385 #define MER_PRINTK(format, args...) \
386 printk(KERN_DEBUG format , ## args)
388 #define MER_PRINTK(format, args...)
391 /* conditional macros for NCR5380_print_{,phase,status} */
393 #define NCR_PRINT(mask) \
394 ((NDEBUG & (mask)) ? NCR5380_print(instance) : (void)0)
396 #define NCR_PRINT_PHASE(mask) \
397 ((NDEBUG & (mask)) ? NCR5380_print_phase(instance) : (void)0)
399 #define NCR_PRINT_STATUS(mask) \
400 ((NDEBUG & (mask)) ? NCR5380_print_status(instance) : (void)0)
404 #endif /* ndef HOSTS_C */
405 #endif /* SUN3_NCR5380_H */