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
32 #ifndef SUN3_NCR5380_H
33 #define SUN3_NCR5380_H
35 #define SUN3SCSI_PUBLIC_RELEASE 1
38 * Int: level 2 autovector
39 * IO: type 1, base 0x00140000, 5 bits phys space: A<4..0>
41 #define IRQ_SUN3_SCSI 2
42 #define IOBASE_SUN3_SCSI 0x00140000
44 #define IOBASE_SUN3_VMESCSI 0xff200000
46 static int sun3scsi_abort(struct scsi_cmnd *);
47 static int sun3scsi_detect (struct scsi_host_template *);
48 static const char *sun3scsi_info (struct Scsi_Host *);
49 static int sun3scsi_bus_reset(struct scsi_cmnd *);
50 static int sun3scsi_queue_command(struct Scsi_Host *, struct scsi_cmnd *);
51 static int sun3scsi_release (struct Scsi_Host *);
62 #define SG_TABLESIZE SG_NONE
69 #ifndef USE_TAGGED_QUEUING
70 #define USE_TAGGED_QUEUING 1
73 #include <scsi/scsicam.h>
76 #define SUN3_SCSI_NAME "Sun3 NCR5380 VME SCSI"
78 #define SUN3_SCSI_NAME "Sun3 NCR5380 SCSI"
81 #define NCR5380_implementation_fields \
84 #define NCR5380_local_declare() \
85 struct Scsi_Host *_instance
87 #define NCR5380_setup(instance) \
90 #define NCR5380_read(reg) sun3scsi_read(reg)
91 #define NCR5380_write(reg, value) sun3scsi_write(reg, value)
93 #define NCR5380_intr sun3scsi_intr
94 #define NCR5380_queue_command sun3scsi_queue_command
95 #define NCR5380_bus_reset sun3scsi_bus_reset
96 #define NCR5380_abort sun3scsi_abort
97 #define NCR5380_show_info sun3scsi_show_info
98 #define NCR5380_dma_xfer_len(i, cmd, phase) \
99 sun3scsi_dma_xfer_len(cmd->SCp.this_residual,cmd,((phase) & SR_IO) ? 0 : 1)
101 #define NCR5380_dma_write_setup(instance, data, count) sun3scsi_dma_setup(data, count, 1)
102 #define NCR5380_dma_read_setup(instance, data, count) sun3scsi_dma_setup(data, count, 0)
103 #define NCR5380_dma_residual sun3scsi_dma_residual
105 /* additional registers - mainly DMA control regs */
106 /* these start at regbase + 8 -- directly after the NCR regs */
107 struct sun3_dma_regs {
108 unsigned short dma_addr_hi; /* vme only */
109 unsigned short dma_addr_lo; /* vme only */
110 unsigned short dma_count_hi; /* vme only */
111 unsigned short dma_count_lo; /* vme only */
112 unsigned short udc_data; /* udc dma data reg (obio only) */
113 unsigned short udc_addr; /* uda dma addr reg (obio only) */
114 unsigned short fifo_data; /* fifo data reg, holds extra byte on
116 unsigned short fifo_count;
117 unsigned short csr; /* control/status reg */
118 unsigned short bpack_hi; /* vme only */
119 unsigned short bpack_lo; /* vme only */
120 unsigned short ivect; /* vme only */
121 unsigned short fifo_count_hi; /* vme only */
124 /* ucd chip specific regs - live in dvma space */
125 struct sun3_udc_regs {
126 unsigned short rsel; /* select regs to load */
127 unsigned short addr_hi; /* high word of addr */
128 unsigned short addr_lo; /* low word */
129 unsigned short count; /* words to be xfer'd */
130 unsigned short mode_hi; /* high word of channel mode */
131 unsigned short mode_lo; /* low word of channel mode */
134 /* addresses of the udc registers */
135 #define UDC_MODE 0x38
136 #define UDC_CSR 0x2e /* command/status */
137 #define UDC_CHN_HI 0x26 /* chain high word */
138 #define UDC_CHN_LO 0x22 /* chain lo word */
139 #define UDC_CURA_HI 0x1a /* cur reg A high */
140 #define UDC_CURA_LO 0x0a /* cur reg A low */
141 #define UDC_CURB_HI 0x12 /* cur reg B high */
142 #define UDC_CURB_LO 0x02 /* cur reg B low */
143 #define UDC_MODE_HI 0x56 /* mode reg high */
144 #define UDC_MODE_LO 0x52 /* mode reg low */
145 #define UDC_COUNT 0x32 /* words to xfer */
147 /* some udc commands */
149 #define UDC_CHN_START 0xa0 /* start chain */
150 #define UDC_INT_ENABLE 0x32 /* channel 1 int on */
153 #define UDC_MODE_HIWORD 0x40
154 #define UDC_MODE_LSEND 0xc2
155 #define UDC_MODE_LRECV 0xd2
157 /* udc reg selections */
158 #define UDC_RSEL_SEND 0x282
159 #define UDC_RSEL_RECV 0x182
161 /* bits in csr reg */
162 #define CSR_DMA_ACTIVE 0x8000
163 #define CSR_DMA_CONFLICT 0x4000
164 #define CSR_DMA_BUSERR 0x2000
166 #define CSR_FIFO_EMPTY 0x400 /* fifo flushed? */
167 #define CSR_SDB_INT 0x200 /* sbc interrupt pending */
168 #define CSR_DMA_INT 0x100 /* dma interrupt pending */
170 #define CSR_LEFT 0xc0
171 #define CSR_LEFT_3 0xc0
172 #define CSR_LEFT_2 0x80
173 #define CSR_LEFT_1 0x40
174 #define CSR_PACK_ENABLE 0x20
176 #define CSR_DMA_ENABLE 0x10
178 #define CSR_SEND 0x8 /* 1 = send 0 = recv */
179 #define CSR_FIFO 0x2 /* reset fifo */
180 #define CSR_INTR 0x4 /* interrupt enable */
183 #define VME_DATA24 0x3d00
185 // debugging printk's, taken from atari_scsi.h
186 /* Debugging printk definitions:
191 * HSH -> PIO handshake
192 * INF -> information transfer
193 * INI -> initialization
195 * LNK -> linked commands
196 * MAIN -> NCR5380_main() control flow
197 * NDAT -> no data-out phase
198 * NWR -> no write commands
199 * PIO -> PIO transfers
200 * PDMA -> pseudo DMA (unused on Atari)
202 * RSL -> reselections
204 * USL -> usleep cpde (unused on Atari)
205 * LBS -> last byte sent (unused on Atari)
206 * RSS -> restarting of selections
207 * EXT -> extended messages
208 * ABRT -> aborting and resetting
209 * TAG -> queue tag handling
210 * MER -> merging of consec. buffers
216 #if NDEBUG & NDEBUG_ARBITRATION
217 #define ARB_PRINTK(format, args...) \
218 printk(KERN_DEBUG format , ## args)
220 #define ARB_PRINTK(format, args...)
222 #if NDEBUG & NDEBUG_AUTOSENSE
223 #define ASEN_PRINTK(format, args...) \
224 printk(KERN_DEBUG format , ## args)
226 #define ASEN_PRINTK(format, args...)
228 #if NDEBUG & NDEBUG_DMA
229 #define DMA_PRINTK(format, args...) \
230 printk(KERN_DEBUG format , ## args)
232 #define DMA_PRINTK(format, args...)
234 #if NDEBUG & NDEBUG_HANDSHAKE
235 #define HSH_PRINTK(format, args...) \
236 printk(KERN_DEBUG format , ## args)
238 #define HSH_PRINTK(format, args...)
240 #if NDEBUG & NDEBUG_INFORMATION
241 #define INF_PRINTK(format, args...) \
242 printk(KERN_DEBUG format , ## args)
244 #define INF_PRINTK(format, args...)
246 #if NDEBUG & NDEBUG_INIT
247 #define INI_PRINTK(format, args...) \
248 printk(KERN_DEBUG format , ## args)
250 #define INI_PRINTK(format, args...)
252 #if NDEBUG & NDEBUG_INTR
253 #define INT_PRINTK(format, args...) \
254 printk(KERN_DEBUG format , ## args)
256 #define INT_PRINTK(format, args...)
258 #if NDEBUG & NDEBUG_LINKED
259 #define LNK_PRINTK(format, args...) \
260 printk(KERN_DEBUG format , ## args)
262 #define LNK_PRINTK(format, args...)
264 #if NDEBUG & NDEBUG_MAIN
265 #define MAIN_PRINTK(format, args...) \
266 printk(KERN_DEBUG format , ## args)
268 #define MAIN_PRINTK(format, args...)
270 #if NDEBUG & NDEBUG_NO_DATAOUT
271 #define NDAT_PRINTK(format, args...) \
272 printk(KERN_DEBUG format , ## args)
274 #define NDAT_PRINTK(format, args...)
276 #if NDEBUG & NDEBUG_NO_WRITE
277 #define NWR_PRINTK(format, args...) \
278 printk(KERN_DEBUG format , ## args)
280 #define NWR_PRINTK(format, args...)
282 #if NDEBUG & NDEBUG_PIO
283 #define PIO_PRINTK(format, args...) \
284 printk(KERN_DEBUG format , ## args)
286 #define PIO_PRINTK(format, args...)
288 #if NDEBUG & NDEBUG_PSEUDO_DMA
289 #define PDMA_PRINTK(format, args...) \
290 printk(KERN_DEBUG format , ## args)
292 #define PDMA_PRINTK(format, args...)
294 #if NDEBUG & NDEBUG_QUEUES
295 #define QU_PRINTK(format, args...) \
296 printk(KERN_DEBUG format , ## args)
298 #define QU_PRINTK(format, args...)
300 #if NDEBUG & NDEBUG_RESELECTION
301 #define RSL_PRINTK(format, args...) \
302 printk(KERN_DEBUG format , ## args)
304 #define RSL_PRINTK(format, args...)
306 #if NDEBUG & NDEBUG_SELECTION
307 #define SEL_PRINTK(format, args...) \
308 printk(KERN_DEBUG format , ## args)
310 #define SEL_PRINTK(format, args...)
312 #if NDEBUG & NDEBUG_USLEEP
313 #define USL_PRINTK(format, args...) \
314 printk(KERN_DEBUG format , ## args)
316 #define USL_PRINTK(format, args...)
318 #if NDEBUG & NDEBUG_LAST_BYTE_SENT
319 #define LBS_PRINTK(format, args...) \
320 printk(KERN_DEBUG format , ## args)
322 #define LBS_PRINTK(format, args...)
324 #if NDEBUG & NDEBUG_RESTART_SELECT
325 #define RSS_PRINTK(format, args...) \
326 printk(KERN_DEBUG format , ## args)
328 #define RSS_PRINTK(format, args...)
330 #if NDEBUG & NDEBUG_EXTENDED
331 #define EXT_PRINTK(format, args...) \
332 printk(KERN_DEBUG format , ## args)
334 #define EXT_PRINTK(format, args...)
336 #if NDEBUG & NDEBUG_ABORT
337 #define ABRT_PRINTK(format, args...) \
338 printk(KERN_DEBUG format , ## args)
340 #define ABRT_PRINTK(format, args...)
342 #if NDEBUG & NDEBUG_TAGS
343 #define TAG_PRINTK(format, args...) \
344 printk(KERN_DEBUG format , ## args)
346 #define TAG_PRINTK(format, args...)
348 #if NDEBUG & NDEBUG_MERGING
349 #define MER_PRINTK(format, args...) \
350 printk(KERN_DEBUG format , ## args)
352 #define MER_PRINTK(format, args...)
355 /* conditional macros for NCR5380_print_{,phase,status} */
357 #define NCR_PRINT(mask) \
358 ((NDEBUG & (mask)) ? NCR5380_print(instance) : (void)0)
360 #define NCR_PRINT_PHASE(mask) \
361 ((NDEBUG & (mask)) ? NCR5380_print_phase(instance) : (void)0)
363 #define NCR_PRINT_STATUS(mask) \
364 ((NDEBUG & (mask)) ? NCR5380_print_status(instance) : (void)0)
368 #endif /* SUN3_NCR5380_H */