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 50static int sun3scsi_abort(struct scsi_cmnd *); 51static int sun3scsi_detect (struct scsi_host_template *); 52static const char *sun3scsi_info (struct Scsi_Host *); 53static int sun3scsi_bus_reset(struct scsi_cmnd *); 54static int sun3scsi_queue_command(struct scsi_cmnd *, 55 void (*done)(struct scsi_cmnd *)); 56static 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 */ 223 224#include "NCR5380.h" 225 226#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