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
39 #define SUN3SCSI_PUBLIC_RELEASE 1
42 * Int: level 2 autovector
43 * IO: type 1, base 0x00140000, 5 bits phys space: A<4..0>
45 #define IRQ_SUN3_SCSI 2
46 #define IOBASE_SUN3_SCSI 0x00140000
48 #define IOBASE_SUN3_VMESCSI 0xff200000
50 static int sun3scsi_abort(struct scsi_cmnd *);
51 static int sun3scsi_detect (struct scsi_host_template *);
52 static const char *sun3scsi_info (struct Scsi_Host *);
53 static int sun3scsi_bus_reset(struct scsi_cmnd *);
54 static int sun3scsi_queue_command(struct Scsi_Host *, struct scsi_cmnd *);
55 static int sun3scsi_release (struct Scsi_Host *);
66 #define SG_TABLESIZE SG_NONE
73 #ifndef USE_TAGGED_QUEUING
74 #define USE_TAGGED_QUEUING 1
77 #include <scsi/scsicam.h>
80 #define SUN3_SCSI_NAME "Sun3 NCR5380 VME SCSI"
82 #define SUN3_SCSI_NAME "Sun3 NCR5380 SCSI"
87 #define NCR5380_implementation_fields \
90 #define NCR5380_local_declare() \
91 struct Scsi_Host *_instance
93 #define NCR5380_setup(instance) \
96 #define NCR5380_read(reg) sun3scsi_read(reg)
97 #define NCR5380_write(reg, value) sun3scsi_write(reg, value)
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_show_info sun3scsi_show_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)
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
111 /* additional registers - mainly DMA control regs */
112 /* these start at regbase + 8 -- directly after the NCR regs */
113 struct sun3_dma_regs {
114 unsigned short dma_addr_hi; /* vme only */
115 unsigned short dma_addr_lo; /* vme only */
116 unsigned short dma_count_hi; /* vme only */
117 unsigned short dma_count_lo; /* vme only */
118 unsigned short udc_data; /* udc dma data reg (obio only) */
119 unsigned short udc_addr; /* uda dma addr reg (obio only) */
120 unsigned short fifo_data; /* fifo data reg, holds extra byte on
122 unsigned short fifo_count;
123 unsigned short csr; /* control/status reg */
124 unsigned short bpack_hi; /* vme only */
125 unsigned short bpack_lo; /* vme only */
126 unsigned short ivect; /* vme only */
127 unsigned short fifo_count_hi; /* vme only */
130 /* ucd chip specific regs - live in dvma space */
131 struct sun3_udc_regs {
132 unsigned short rsel; /* select regs to load */
133 unsigned short addr_hi; /* high word of addr */
134 unsigned short addr_lo; /* low word */
135 unsigned short count; /* words to be xfer'd */
136 unsigned short mode_hi; /* high word of channel mode */
137 unsigned short mode_lo; /* low word of channel mode */
140 /* addresses of the udc registers */
141 #define UDC_MODE 0x38
142 #define UDC_CSR 0x2e /* command/status */
143 #define UDC_CHN_HI 0x26 /* chain high word */
144 #define UDC_CHN_LO 0x22 /* chain lo word */
145 #define UDC_CURA_HI 0x1a /* cur reg A high */
146 #define UDC_CURA_LO 0x0a /* cur reg A low */
147 #define UDC_CURB_HI 0x12 /* cur reg B high */
148 #define UDC_CURB_LO 0x02 /* cur reg B low */
149 #define UDC_MODE_HI 0x56 /* mode reg high */
150 #define UDC_MODE_LO 0x52 /* mode reg low */
151 #define UDC_COUNT 0x32 /* words to xfer */
153 /* some udc commands */
155 #define UDC_CHN_START 0xa0 /* start chain */
156 #define UDC_INT_ENABLE 0x32 /* channel 1 int on */
159 #define UDC_MODE_HIWORD 0x40
160 #define UDC_MODE_LSEND 0xc2
161 #define UDC_MODE_LRECV 0xd2
163 /* udc reg selections */
164 #define UDC_RSEL_SEND 0x282
165 #define UDC_RSEL_RECV 0x182
167 /* bits in csr reg */
168 #define CSR_DMA_ACTIVE 0x8000
169 #define CSR_DMA_CONFLICT 0x4000
170 #define CSR_DMA_BUSERR 0x2000
172 #define CSR_FIFO_EMPTY 0x400 /* fifo flushed? */
173 #define CSR_SDB_INT 0x200 /* sbc interrupt pending */
174 #define CSR_DMA_INT 0x100 /* dma interrupt pending */
176 #define CSR_LEFT 0xc0
177 #define CSR_LEFT_3 0xc0
178 #define CSR_LEFT_2 0x80
179 #define CSR_LEFT_1 0x40
180 #define CSR_PACK_ENABLE 0x20
182 #define CSR_DMA_ENABLE 0x10
184 #define CSR_SEND 0x8 /* 1 = send 0 = recv */
185 #define CSR_FIFO 0x2 /* reset fifo */
186 #define CSR_INTR 0x4 /* interrupt enable */
189 #define VME_DATA24 0x3d00
191 // debugging printk's, taken from atari_scsi.h
192 /* Debugging printk definitions:
197 * HSH -> PIO handshake
198 * INF -> information transfer
199 * INI -> initialization
201 * LNK -> linked commands
202 * MAIN -> NCR5380_main() control flow
203 * NDAT -> no data-out phase
204 * NWR -> no write commands
205 * PIO -> PIO transfers
206 * PDMA -> pseudo DMA (unused on Atari)
208 * RSL -> reselections
210 * USL -> usleep cpde (unused on Atari)
211 * LBS -> last byte sent (unused on Atari)
212 * RSS -> restarting of selections
213 * EXT -> extended messages
214 * ABRT -> aborting and resetting
215 * TAG -> queue tag handling
216 * MER -> merging of consec. buffers
222 #if NDEBUG & NDEBUG_ARBITRATION
223 #define ARB_PRINTK(format, args...) \
224 printk(KERN_DEBUG format , ## args)
226 #define ARB_PRINTK(format, args...)
228 #if NDEBUG & NDEBUG_AUTOSENSE
229 #define ASEN_PRINTK(format, args...) \
230 printk(KERN_DEBUG format , ## args)
232 #define ASEN_PRINTK(format, args...)
234 #if NDEBUG & NDEBUG_DMA
235 #define DMA_PRINTK(format, args...) \
236 printk(KERN_DEBUG format , ## args)
238 #define DMA_PRINTK(format, args...)
240 #if NDEBUG & NDEBUG_HANDSHAKE
241 #define HSH_PRINTK(format, args...) \
242 printk(KERN_DEBUG format , ## args)
244 #define HSH_PRINTK(format, args...)
246 #if NDEBUG & NDEBUG_INFORMATION
247 #define INF_PRINTK(format, args...) \
248 printk(KERN_DEBUG format , ## args)
250 #define INF_PRINTK(format, args...)
252 #if NDEBUG & NDEBUG_INIT
253 #define INI_PRINTK(format, args...) \
254 printk(KERN_DEBUG format , ## args)
256 #define INI_PRINTK(format, args...)
258 #if NDEBUG & NDEBUG_INTR
259 #define INT_PRINTK(format, args...) \
260 printk(KERN_DEBUG format , ## args)
262 #define INT_PRINTK(format, args...)
264 #if NDEBUG & NDEBUG_LINKED
265 #define LNK_PRINTK(format, args...) \
266 printk(KERN_DEBUG format , ## args)
268 #define LNK_PRINTK(format, args...)
270 #if NDEBUG & NDEBUG_MAIN
271 #define MAIN_PRINTK(format, args...) \
272 printk(KERN_DEBUG format , ## args)
274 #define MAIN_PRINTK(format, args...)
276 #if NDEBUG & NDEBUG_NO_DATAOUT
277 #define NDAT_PRINTK(format, args...) \
278 printk(KERN_DEBUG format , ## args)
280 #define NDAT_PRINTK(format, args...)
282 #if NDEBUG & NDEBUG_NO_WRITE
283 #define NWR_PRINTK(format, args...) \
284 printk(KERN_DEBUG format , ## args)
286 #define NWR_PRINTK(format, args...)
288 #if NDEBUG & NDEBUG_PIO
289 #define PIO_PRINTK(format, args...) \
290 printk(KERN_DEBUG format , ## args)
292 #define PIO_PRINTK(format, args...)
294 #if NDEBUG & NDEBUG_PSEUDO_DMA
295 #define PDMA_PRINTK(format, args...) \
296 printk(KERN_DEBUG format , ## args)
298 #define PDMA_PRINTK(format, args...)
300 #if NDEBUG & NDEBUG_QUEUES
301 #define QU_PRINTK(format, args...) \
302 printk(KERN_DEBUG format , ## args)
304 #define QU_PRINTK(format, args...)
306 #if NDEBUG & NDEBUG_RESELECTION
307 #define RSL_PRINTK(format, args...) \
308 printk(KERN_DEBUG format , ## args)
310 #define RSL_PRINTK(format, args...)
312 #if NDEBUG & NDEBUG_SELECTION
313 #define SEL_PRINTK(format, args...) \
314 printk(KERN_DEBUG format , ## args)
316 #define SEL_PRINTK(format, args...)
318 #if NDEBUG & NDEBUG_USLEEP
319 #define USL_PRINTK(format, args...) \
320 printk(KERN_DEBUG format , ## args)
322 #define USL_PRINTK(format, args...)
324 #if NDEBUG & NDEBUG_LAST_BYTE_SENT
325 #define LBS_PRINTK(format, args...) \
326 printk(KERN_DEBUG format , ## args)
328 #define LBS_PRINTK(format, args...)
330 #if NDEBUG & NDEBUG_RESTART_SELECT
331 #define RSS_PRINTK(format, args...) \
332 printk(KERN_DEBUG format , ## args)
334 #define RSS_PRINTK(format, args...)
336 #if NDEBUG & NDEBUG_EXTENDED
337 #define EXT_PRINTK(format, args...) \
338 printk(KERN_DEBUG format , ## args)
340 #define EXT_PRINTK(format, args...)
342 #if NDEBUG & NDEBUG_ABORT
343 #define ABRT_PRINTK(format, args...) \
344 printk(KERN_DEBUG format , ## args)
346 #define ABRT_PRINTK(format, args...)
348 #if NDEBUG & NDEBUG_TAGS
349 #define TAG_PRINTK(format, args...) \
350 printk(KERN_DEBUG format , ## args)
352 #define TAG_PRINTK(format, args...)
354 #if NDEBUG & NDEBUG_MERGING
355 #define MER_PRINTK(format, args...) \
356 printk(KERN_DEBUG format , ## args)
358 #define MER_PRINTK(format, args...)
361 /* conditional macros for NCR5380_print_{,phase,status} */
363 #define NCR_PRINT(mask) \
364 ((NDEBUG & (mask)) ? NCR5380_print(instance) : (void)0)
366 #define NCR_PRINT_PHASE(mask) \
367 ((NDEBUG & (mask)) ? NCR5380_print_phase(instance) : (void)0)
369 #define NCR_PRINT_STATUS(mask) \
370 ((NDEBUG & (mask)) ? NCR5380_print_status(instance) : (void)0)
374 #endif /* ndef HOSTS_C */
375 #endif /* SUN3_NCR5380_H */