siopreg.h revision 1.9
1 1.9 is /* $NetBSD: siopreg.h,v 1.9 1999/03/09 20:31:34 is Exp $ */ 2 1.5 cgd 3 1.1 mw /* 4 1.1 mw * Copyright (c) 1990 The Regents of the University of California. 5 1.1 mw * All rights reserved. 6 1.1 mw * 7 1.1 mw * This code is derived from software contributed to Berkeley by 8 1.1 mw * Van Jacobson of Lawrence Berkeley Laboratory. 9 1.1 mw * 10 1.1 mw * Redistribution and use in source and binary forms, with or without 11 1.1 mw * modification, are permitted provided that the following conditions 12 1.1 mw * are met: 13 1.1 mw * 1. Redistributions of source code must retain the above copyright 14 1.1 mw * notice, this list of conditions and the following disclaimer. 15 1.1 mw * 2. Redistributions in binary form must reproduce the above copyright 16 1.1 mw * notice, this list of conditions and the following disclaimer in the 17 1.1 mw * documentation and/or other materials provided with the distribution. 18 1.1 mw * 3. All advertising materials mentioning features or use of this software 19 1.1 mw * must display the following acknowledgement: 20 1.1 mw * This product includes software developed by the University of 21 1.1 mw * California, Berkeley and its contributors. 22 1.1 mw * 4. Neither the name of the University nor the names of its contributors 23 1.1 mw * may be used to endorse or promote products derived from this software 24 1.1 mw * without specific prior written permission. 25 1.1 mw * 26 1.1 mw * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 1.1 mw * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 1.1 mw * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 1.1 mw * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 1.1 mw * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 1.1 mw * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 1.1 mw * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 1.1 mw * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 1.1 mw * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 1.1 mw * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 1.1 mw * SUCH DAMAGE. 37 1.1 mw * 38 1.2 chopps * @(#)siopreg.h 7.3 (Berkeley) 2/5/91 39 1.1 mw */ 40 1.1 mw 41 1.1 mw /* 42 1.1 mw * NCR 53C710 SCSI interface hardware description. 43 1.1 mw * 44 1.6 chopps * From the Mach scsi driver for the 53C700 45 1.1 mw */ 46 1.1 mw 47 1.1 mw typedef struct { 48 1.9 is 49 1.9 is #ifndef ARCH_720 50 1.9 is 51 1.7 chopps /*00*/ volatile unsigned char siop_sien; /* rw: SCSI Interrupt Enable */ 52 1.7 chopps /*01*/ volatile unsigned char siop_sdid; /* rw: SCSI Destination ID */ 53 1.7 chopps /*02*/ volatile unsigned char siop_scntl1; /* rw: SCSI control reg 1 */ 54 1.7 chopps /*03*/ volatile unsigned char siop_scntl0; /* rw: SCSI control reg 0 */ 55 1.9 is 56 1.7 chopps /*04*/ volatile unsigned char siop_socl; /* rw: SCSI Output Control Latch */ 57 1.7 chopps /*05*/ volatile unsigned char siop_sodl; /* rw: SCSI Output Data Latch */ 58 1.7 chopps /*06*/ volatile unsigned char siop_sxfer; /* rw: SCSI Transfer reg */ 59 1.7 chopps /*07*/ volatile unsigned char siop_scid; /* rw: SCSI Chip ID reg */ 60 1.9 is 61 1.7 chopps /*08*/ volatile unsigned char siop_sbcl; /* ro: SCSI Bus Control Lines */ 62 1.7 chopps /*09*/ volatile unsigned char siop_sbdl; /* ro: SCSI Bus Data Lines */ 63 1.7 chopps /*0a*/ volatile unsigned char siop_sidl; /* ro: SCSI Input Data Latch */ 64 1.7 chopps /*0b*/ volatile unsigned char siop_sfbr; /* ro: SCSI First Byte Received */ 65 1.9 is 66 1.7 chopps /*0c*/ volatile unsigned char siop_sstat2; /* ro: SCSI status reg 2 */ 67 1.7 chopps /*0d*/ volatile unsigned char siop_sstat1; /* ro: SCSI status reg 1 */ 68 1.7 chopps /*0e*/ volatile unsigned char siop_sstat0; /* ro: SCSI status reg 0 */ 69 1.7 chopps /*0f*/ volatile unsigned char siop_dstat; /* ro: DMA status */ 70 1.9 is 71 1.7 chopps /*10*/ volatile unsigned long siop_dsa; /* rw: Data Structure Address */ 72 1.9 is 73 1.7 chopps /*14*/ volatile unsigned char siop_ctest3; /* ro: Chip test register 3 */ 74 1.7 chopps /*15*/ volatile unsigned char siop_ctest2; /* ro: Chip test register 2 */ 75 1.7 chopps /*16*/ volatile unsigned char siop_ctest1; /* ro: Chip test register 1 */ 76 1.7 chopps /*17*/ volatile unsigned char siop_ctest0; /* ro: Chip test register 0 */ 77 1.9 is 78 1.7 chopps /*18*/ volatile unsigned char siop_ctest7; /* rw: Chip test register 7 */ 79 1.7 chopps /*19*/ volatile unsigned char siop_ctest6; /* rw: Chip test register 6 */ 80 1.7 chopps /*1a*/ volatile unsigned char siop_ctest5; /* rw: Chip test register 5 */ 81 1.7 chopps /*1b*/ volatile unsigned char siop_ctest4; /* rw: Chip test register 4 */ 82 1.9 is 83 1.7 chopps /*1c*/ volatile unsigned long siop_temp; /* rw: Temporary Stack reg */ 84 1.9 is 85 1.7 chopps /*20*/ volatile unsigned char siop_lcrc; /* rw: LCRC value */ 86 1.7 chopps /*21*/ volatile unsigned char siop_ctest8; /* rw: Chip test register 8 */ 87 1.7 chopps /*22*/ volatile unsigned char siop_istat; /* rw: Interrupt Status reg */ 88 1.7 chopps /*23*/ volatile unsigned char siop_dfifo; /* rw: DMA FIFO */ 89 1.9 is 90 1.7 chopps /*24*/ volatile unsigned char siop_dcmd; /* rw: DMA Command Register */ 91 1.7 chopps /*25*/ volatile unsigned char siop_dbc2; /* rw: DMA Byte Counter reg */ 92 1.7 chopps /*26*/ volatile unsigned char siop_dbc1; 93 1.7 chopps /*27*/ volatile unsigned char siop_dbc0; 94 1.9 is 95 1.7 chopps /*28*/ volatile unsigned long siop_dnad; /* rw: DMA Next Address */ 96 1.9 is 97 1.7 chopps /*2c*/ volatile unsigned long siop_dsp; /* rw: DMA SCRIPTS Pointer reg */ 98 1.9 is 99 1.7 chopps /*30*/ volatile unsigned long siop_dsps; /* rw: DMA SCRIPTS Pointer Save reg */ 100 1.9 is 101 1.7 chopps /*34*/ volatile unsigned long siop_scratch; /* rw: Scratch Register */ 102 1.9 is 103 1.9 is /*38*/ volatile unsigned char siop_dcntl; /* rw: DMA Control reg */ 104 1.9 is /*39*/ volatile unsigned char siop_dwt; /* rw: DMA Watchdog Timer */ 105 1.9 is /*3a*/ volatile unsigned char siop_dien; /* rw: DMA Interrupt Enable */ 106 1.9 is /*3b*/ volatile unsigned char siop_dmode; /* rw: DMA Mode reg */ 107 1.9 is 108 1.9 is /*3c*/ volatile unsigned long siop_adder; 109 1.9 is 110 1.9 is #else 111 1.9 is 112 1.9 is /*00*/ volatile unsigned char siop_scntl3; /* rw: SCSI control reg 3 */ 113 1.9 is /*01*/ volatile unsigned char siop_scntl2; /* rw: SCSI control reg 2 */ 114 1.9 is /*02*/ volatile unsigned char siop_scntl1; /* rw: SCSI control reg 1 */ 115 1.9 is /*03*/ volatile unsigned char siop_scntl0; /* rw: SCSI control reg 0 */ 116 1.9 is 117 1.9 is /*04*/ volatile unsigned char siop_gpreg; /* rw: SCSI */ 118 1.9 is /*05*/ volatile unsigned char siop_sdid; /* rw: SCSI Destination ID */ 119 1.9 is /*06*/ volatile unsigned char siop_sxfer; /* rw: SCSI Transfer reg */ 120 1.9 is /*07*/ volatile unsigned char siop_scid; /* rw: SCSI Chip ID reg */ 121 1.9 is 122 1.9 is /*08*/ volatile unsigned char siop_sbcl; /* ro: SCSI Bus Control Lines */ 123 1.9 is /*09*/ volatile unsigned char siop_ssid; /* ro: SCSI */ 124 1.9 is /*0a*/ volatile unsigned char siop_socl; /* rw: SCSI Output Control Latch */ 125 1.9 is /*0b*/ volatile unsigned char siop_sfbr; /* ro: SCSI First Byte Received */ 126 1.9 is 127 1.9 is /*0c*/ volatile unsigned char siop_sstat2; /* ro: SCSI status reg 2 */ 128 1.9 is /*0d*/ volatile unsigned char siop_sstat1; /* ro: SCSI status reg 1 */ 129 1.9 is /*0e*/ volatile unsigned char siop_sstat0; /* ro: SCSI status reg 0 */ 130 1.9 is /*0f*/ volatile unsigned char siop_dstat; /* ro: DMA status */ 131 1.9 is 132 1.9 is /*10*/ volatile unsigned long siop_dsa; /* rw: Data Structure Address */ 133 1.9 is 134 1.9 is /*14*/ volatile unsigned char siop_14_; /* ??: */ 135 1.9 is /*15*/ volatile unsigned char siop_15_; /* ??: */ 136 1.9 is /*16*/ volatile unsigned char siop_16_; /* ??: */ 137 1.9 is /*17*/ volatile unsigned char siop_istat; /* rw: Interrupt Status reg */ 138 1.9 is 139 1.9 is /*18*/ volatile unsigned char siop_ctest3; /* ro: Chip test register 3 */ 140 1.9 is /*19*/ volatile unsigned char siop_ctest2; /* ro: Chip test register 2 */ 141 1.9 is /*1a*/ volatile unsigned char siop_ctest1; /* ro: Chip test register 1 */ 142 1.9 is /*1b*/ volatile unsigned char siop_ctest0; /* ro: Chip test register 0 */ 143 1.9 is 144 1.9 is /*1c*/ volatile unsigned long siop_temp; /* rw: Temporary Stack reg */ 145 1.9 is 146 1.9 is /*20*/ volatile unsigned char siop_ctest6; /* rw: Chip test register 6 */ 147 1.9 is /*21*/ volatile unsigned char siop_ctest5; /* rw: Chip test register 5 */ 148 1.9 is /*22*/ volatile unsigned char siop_ctest4; /* rw: Chip test register 4 */ 149 1.9 is /*23*/ volatile unsigned char siop_dfifo; /* rw: DMA FIFO */ 150 1.9 is 151 1.9 is /*24*/ volatile unsigned char siop_dcmd; /* rw: DMA Command Register */ 152 1.9 is /*25*/ volatile unsigned char siop_dbc2; /* rw: DMA Byte Counter reg */ 153 1.9 is /*26*/ volatile unsigned char siop_dbc1; 154 1.9 is /*27*/ volatile unsigned char siop_dbc0; 155 1.9 is 156 1.9 is /*28*/ volatile unsigned long siop_dnad; /* rw: DMA Next Address */ 157 1.9 is 158 1.9 is /*2c*/ volatile unsigned long siop_dsp; /* rw: DMA SCRIPTS Pointer reg */ 159 1.9 is 160 1.9 is /*30*/ volatile unsigned long siop_dsps; /* rw: DMA SCRIPTS Pointer Save reg */ 161 1.9 is 162 1.9 is /*34*/ volatile unsigned long siop_scratcha; /* rw: Scratch Register A */ 163 1.9 is 164 1.7 chopps /*38*/ volatile unsigned char siop_dcntl; /* rw: DMA Control reg */ 165 1.7 chopps /*39*/ volatile unsigned char siop_dwt; /* rw: DMA Watchdog Timer */ 166 1.7 chopps /*3a*/ volatile unsigned char siop_dien; /* rw: DMA Interrupt Enable */ 167 1.7 chopps /*3b*/ volatile unsigned char siop_dmode; /* rw: DMA Mode reg */ 168 1.9 is 169 1.7 chopps /*3c*/ volatile unsigned long siop_adder; 170 1.1 mw 171 1.9 is /*40*/ volatile unsigned short siop_sist; /* rw: SCSI Interrupt Status */ 172 1.9 is #define SIOP_SIST_STO 0x0400 /* timeout (select) */ 173 1.9 is #define SIOP_SIST_GEN 0x0200 /* timeout (general) */ 174 1.9 is #define SIOP_SIST_MA 0x0080 /* phase mispatch */ 175 1.9 is #define SIOP_SIST_SGE 0x0008 /* gross error (over/underflow) */ 176 1.9 is #define SIOP_SIST_UDC 0x0004 /* unexpected disconnect */ 177 1.9 is #define SIOP_SIST_PAR 0x0001 /* scsi parity error */ 178 1.9 is /*42*/ volatile unsigned short siop_sien; /* rw: SCSI Interrupt Enable */ 179 1.9 is #define SIOP_SIEN_STO 0x0400 /* timeout (select) */ 180 1.9 is #define SIOP_SIEN_GEN 0x0200 /* timeout (general) */ 181 1.9 is #define SIOP_SIEN_MA 0x0080 /* phase mispatch */ 182 1.9 is #define SIOP_SIEN_SGE 0x0008 /* gross error (over/underflow) */ 183 1.9 is #define SIOP_SIEN_UDC 0x0004 /* unexpected disconnect */ 184 1.9 is #define SIOP_SIEN_RST 0x0002 /* scsi bus reset */ 185 1.9 is #define SIOP_SIEN_PAR 0x0001 /* scsi parity error */ 186 1.9 is 187 1.9 is /*44*/ volatile unsigned char siop_gpcntl; /* rw: SCSI */ 188 1.9 is /*45*/ volatile unsigned char siop_macntl; /* rw: SCSI */ 189 1.9 is /*46*/ volatile unsigned char siop_swide; /* rw: SCSI */ 190 1.9 is /*47*/ volatile unsigned char siop_slpar; /* rw: SCSI */ 191 1.9 is 192 1.9 is /*48*/ volatile unsigned short siop_respid; /* rw: SCSI Reselect-IDS */ 193 1.9 is /*4a*/ volatile unsigned char siop_stime1; /* rw: SCSI */ 194 1.9 is /*4b*/ volatile unsigned char siop_stime0; /* rw: SCSI */ 195 1.9 is 196 1.9 is /*4c*/ volatile unsigned char siop_stest3; /* ro: Chip test register 3 */ 197 1.9 is /*4d*/ volatile unsigned char siop_stest2; /* ro: Chip test register 2 */ 198 1.9 is /*4e*/ volatile unsigned char siop_stest1; /* ro: Chip test register 1 */ 199 1.9 is /*4f*/ volatile unsigned char siop_stest0; /* ro: Chip test register 0 */ 200 1.9 is 201 1.9 is /*50*/ volatile unsigned char siop_50_; /* rw: SCSI */ 202 1.9 is /*51*/ volatile unsigned char siop_stest4; /* rw: SCSI */ 203 1.9 is /*52*/ volatile unsigned short siop_sidl; /* ro: SCSI Input Data Latch */ 204 1.9 is 205 1.9 is /*54*/ volatile unsigned short siop_54_; /* rw: SCSI */ 206 1.9 is /*56*/ volatile unsigned short siop_sodl; /* rw: SCSI Output Data Latch */ 207 1.9 is 208 1.9 is /*58*/ volatile unsigned short siop_58_; /* rw: SCSI */ 209 1.9 is /*5a*/ volatile unsigned short siop_sbdl; /* ro: SCSI Bus Data Lines */ 210 1.9 is 211 1.9 is /*5c*/ volatile unsigned long siop_scratchb; /* rw: Scratch Register B */ 212 1.9 is #endif 213 1.9 is 214 1.1 mw } siop_regmap_t; 215 1.4 chopps typedef volatile siop_regmap_t *siop_regmap_p; 216 1.1 mw 217 1.1 mw /* 218 1.1 mw * Register defines 219 1.1 mw */ 220 1.1 mw 221 1.1 mw /* Scsi control register 0 (scntl0) */ 222 1.1 mw 223 1.1 mw #define SIOP_SCNTL0_ARB 0xc0 /* Arbitration mode */ 224 1.1 mw # define SIOP_ARB_SIMPLE 0x00 225 1.1 mw # define SIOP_ARB_FULL 0xc0 226 1.1 mw #define SIOP_SCNTL0_START 0x20 /* Start Sequence */ 227 1.1 mw #define SIOP_SCNTL0_WATN 0x10 /* (Select) With ATN */ 228 1.1 mw #define SIOP_SCNTL0_EPC 0x08 /* Enable Parity Checking */ 229 1.1 mw #define SIOP_SCNTL0_EPG 0x04 /* Enable Parity Generation */ 230 1.1 mw #define SIOP_SCNTL0_AAP 0x02 /* Assert ATN on Parity Error */ 231 1.1 mw #define SIOP_SCNTL0_TRG 0x01 /* Target Mode */ 232 1.1 mw 233 1.1 mw /* Scsi control register 1 (scntl1) */ 234 1.1 mw 235 1.1 mw #define SIOP_SCNTL1_EXC 0x80 /* Extra Clock Cycle of data setup */ 236 1.1 mw #define SIOP_SCNTL1_ADB 0x40 /* Assert Data Bus */ 237 1.1 mw #define SIOP_SCNTL1_ESR 0x20 /* Enable Selection/Reselection */ 238 1.1 mw #define SIOP_SCNTL1_CON 0x10 /* Connected */ 239 1.1 mw #define SIOP_SCNTL1_RST 0x08 /* Assert RST */ 240 1.6 chopps #define SIOP_SCNTL1_AESP 0x04 /* Assert even SCSI parity */ 241 1.6 chopps #define SIOP_SCNTL1_RES0 0x02 /* Reserved */ 242 1.6 chopps #define SIOP_SCNTL1_RES1 0x01 /* Reserved */ 243 1.1 mw 244 1.1 mw /* Scsi interrupt enable register (sien) */ 245 1.1 mw 246 1.9 is #ifndef ARCH_720 247 1.1 mw #define SIOP_SIEN_M_A 0x80 /* Phase Mismatch or ATN active */ 248 1.6 chopps #define SIOP_SIEN_FCMP 0x40 /* Function Complete */ 249 1.1 mw #define SIOP_SIEN_STO 0x20 /* (Re)Selection timeout */ 250 1.1 mw #define SIOP_SIEN_SEL 0x10 /* (Re)Selected */ 251 1.1 mw #define SIOP_SIEN_SGE 0x08 /* SCSI Gross Error */ 252 1.1 mw #define SIOP_SIEN_UDC 0x04 /* Unexpected Disconnect */ 253 1.1 mw #define SIOP_SIEN_RST 0x02 /* RST asserted */ 254 1.1 mw #define SIOP_SIEN_PAR 0x01 /* Parity Error */ 255 1.9 is #endif 256 1.1 mw 257 1.1 mw /* Scsi chip ID (scid) */ 258 1.1 mw 259 1.1 mw #define SIOP_SCID_VALUE(i) (1<<i) 260 1.1 mw 261 1.1 mw /* Scsi transfer register (sxfer) */ 262 1.1 mw 263 1.1 mw #define SIOP_SXFER_DHP 0x80 /* Disable Halt on Parity error/ ATN asserted */ 264 1.1 mw #define SIOP_SXFER_TP 0x70 /* Synch Transfer Period */ 265 1.1 mw /* see specs for formulas: 266 1.1 mw Period = TCP * (4 + XFERP ) 267 1.1 mw TCP = 1 + CLK + 1..2; 268 1.1 mw */ 269 1.9 is #ifndef ARCH_720 270 1.1 mw #define SIOP_SXFER_MO 0x0f /* Synch Max Offset */ 271 1.1 mw # define SIOP_MAX_OFFSET 8 272 1.9 is #else 273 1.9 is #define SIOP_SXFER_MO 0x1f /* Synch Max Offset */ 274 1.9 is # define SIOP_MAX_OFFSET 16 275 1.9 is #endif 276 1.1 mw 277 1.1 mw /* Scsi output data latch register (sodl) */ 278 1.1 mw 279 1.1 mw /* Scsi output control latch register (socl) */ 280 1.1 mw 281 1.1 mw #define SIOP_REQ 0x80 /* SCSI signal <x> asserted */ 282 1.1 mw #define SIOP_ACK 0x40 283 1.1 mw #define SIOP_BSY 0x20 284 1.1 mw #define SIOP_SEL 0x10 285 1.1 mw #define SIOP_ATN 0x08 286 1.1 mw #define SIOP_MSG 0x04 287 1.1 mw #define SIOP_CD 0x02 288 1.1 mw #define SIOP_IO 0x01 289 1.1 mw 290 1.1 mw #define SIOP_PHASE(socl) SCSI_PHASE(socl) 291 1.1 mw 292 1.1 mw /* Scsi first byte received register (sfbr) */ 293 1.1 mw 294 1.1 mw /* Scsi input data latch register (sidl) */ 295 1.1 mw 296 1.1 mw /* Scsi bus data lines register (sbdl) */ 297 1.1 mw 298 1.1 mw /* Scsi bus control lines register (sbcl). Same as socl */ 299 1.1 mw 300 1.1 mw /* DMA status register (dstat) */ 301 1.1 mw 302 1.1 mw #define SIOP_DSTAT_DFE 0x80 /* DMA FIFO empty */ 303 1.6 chopps #define SIOP_DSTAT_RES 0x40 304 1.6 chopps #define SIOP_DSTAT_BF 0x20 /* Bus fault */ 305 1.1 mw #define SIOP_DSTAT_ABRT 0x10 /* Aborted */ 306 1.1 mw #define SIOP_DSTAT_SSI 0x08 /* SCRIPT Single Step */ 307 1.1 mw #define SIOP_DSTAT_SIR 0x04 /* SCRIPT Interrupt Instruction */ 308 1.1 mw #define SIOP_DSTAT_WTD 0x02 /* Watchdog Timeout Detected */ 309 1.6 chopps #define SIOP_DSTAT_IID 0x01 /* Invalid Instruction Detected */ 310 1.1 mw 311 1.1 mw /* Scsi status register 0 (sstat0) */ 312 1.1 mw 313 1.1 mw #define SIOP_SSTAT0_M_A 0x80 /* Phase Mismatch or ATN active */ 314 1.6 chopps #define SIOP_SSTAT0_FCMP 0x40 /* Function Complete */ 315 1.1 mw #define SIOP_SSTAT0_STO 0x20 /* (Re)Selection timeout */ 316 1.1 mw #define SIOP_SSTAT0_SEL 0x10 /* (Re)Selected */ 317 1.1 mw #define SIOP_SSTAT0_SGE 0x08 /* SCSI Gross Error */ 318 1.1 mw #define SIOP_SSTAT0_UDC 0x04 /* Unexpected Disconnect */ 319 1.1 mw #define SIOP_SSTAT0_RST 0x02 /* RST asserted */ 320 1.1 mw #define SIOP_SSTAT0_PAR 0x01 /* Parity Error */ 321 1.1 mw 322 1.1 mw /* Scsi status register 1 (sstat1) */ 323 1.1 mw 324 1.1 mw #define SIOP_SSTAT1_ILF 0x80 /* Input latch (sidl) full */ 325 1.1 mw #define SIOP_SSTAT1_ORF 0x40 /* output reg (sodr) full */ 326 1.1 mw #define SIOP_SSTAT1_OLF 0x20 /* output latch (sodl) full */ 327 1.1 mw #define SIOP_SSTAT1_AIP 0x10 /* Arbitration in progress */ 328 1.1 mw #define SIOP_SSTAT1_LOA 0x08 /* Lost arbitration */ 329 1.1 mw #define SIOP_SSTAT1_WOA 0x04 /* Won arbitration */ 330 1.1 mw #define SIOP_SSTAT1_RST 0x02 /* SCSI RST current value */ 331 1.1 mw #define SIOP_SSTAT1_SDP 0x01 /* SCSI SDP current value */ 332 1.1 mw 333 1.1 mw /* Scsi status register 2 (sstat2) */ 334 1.1 mw 335 1.1 mw #define SIOP_SSTAT2_FF 0xf0 /* SCSI FIFO flags (bytecount) */ 336 1.1 mw # define SIOP_SCSI_FIFO_DEEP 8 337 1.1 mw #define SIOP_SSTAT2_SDP 0x08 /* Latched (on REQ) SCSI SDP */ 338 1.1 mw #define SIOP_SSTAT2_MSG 0x04 /* Latched SCSI phase */ 339 1.1 mw #define SIOP_SSTAT2_CD 0x02 340 1.1 mw #define SIOP_SSTAT2_IO 0x01 341 1.1 mw 342 1.1 mw /* Chip test register 0 (ctest0) */ 343 1.1 mw 344 1.6 chopps #define SIOP_CTEST0_RES0 0x80 345 1.6 chopps #define SIOP_CTEST0_BTD 0x40 /* Byte-to-byte Timer Disable */ 346 1.6 chopps #define SIOP_CTEST0_GRP 0x20 /* Generate Receive Parity for Passthrough */ 347 1.6 chopps #define SIOP_CTEST0_EAN 0x10 /* Enable Active Negation */ 348 1.6 chopps #define SIOP_CTEST0_HSC 0x08 /* Halt SCSI clock */ 349 1.6 chopps #define SIOP_CTEST0_ERF 0x04 /* Extend REQ/ACK Filtering */ 350 1.6 chopps #define SIOP_CTEST0_RES1 0x02 351 1.1 mw #define SIOP_CTEST0_DDIR 0x01 /* Xfer direction (1-> from SCSI bus) */ 352 1.1 mw 353 1.1 mw /* Chip test register 1 (ctest1) */ 354 1.1 mw 355 1.1 mw #define SIOP_CTEST1_FMT 0xf0 /* Byte empty in DMA FIFO bottom (high->byte3) */ 356 1.1 mw #define SIOP_CTEST1_FFL 0x0f /* Byte full in DMA FIFO top, same */ 357 1.1 mw 358 1.1 mw /* Chip test register 2 (ctest2) */ 359 1.1 mw 360 1.6 chopps #define SIOP_CTEST2_RES 0x80 361 1.6 chopps #define SIOP_CTEST2_SIGP 0x40 /* Signal process */ 362 1.1 mw #define SIOP_CTEST2_SOFF 0x20 /* Synch Offset compare (1-> zero Init, max Tgt */ 363 1.1 mw #define SIOP_CTEST2_SFP 0x10 /* SCSI FIFO Parity */ 364 1.1 mw #define SIOP_CTEST2_DFP 0x08 /* DMA FIFO Parity */ 365 1.1 mw #define SIOP_CTEST2_TEOP 0x04 /* True EOP (a-la 5380) */ 366 1.1 mw #define SIOP_CTEST2_DREQ 0x02 /* DREQ status */ 367 1.1 mw #define SIOP_CTEST2_DACK 0x01 /* DACK status */ 368 1.1 mw 369 1.1 mw /* Chip test register 3 (ctest3) read-only, top of SCSI FIFO */ 370 1.1 mw 371 1.1 mw /* Chip test register 4 (ctest4) */ 372 1.1 mw 373 1.6 chopps #define SIOP_CTEST4_MUX 0x80 /* Host bus multiplex mode */ 374 1.1 mw #define SIOP_CTEST4_ZMOD 0x40 /* High-impedance outputs */ 375 1.1 mw #define SIOP_CTEST4_SZM 0x20 /* ditto, SCSI "outputs" */ 376 1.1 mw #define SIOP_CTEST4_SLBE 0x10 /* SCSI loobpack enable */ 377 1.1 mw #define SIOP_CTEST4_SFWR 0x08 /* SCSI FIFO write enable (from sodl) */ 378 1.1 mw #define SIOP_CTEST4_FBL 0x07 /* DMA FIFO Byte Lane select (from ctest6) 379 1.1 mw 4->0, .. 7->3 */ 380 1.1 mw 381 1.1 mw /* Chip test register 5 (ctest5) */ 382 1.1 mw 383 1.1 mw #define SIOP_CTEST5_ADCK 0x80 /* Clock Address Incrementor */ 384 1.1 mw #define SIOP_CTEST5_BBCK 0x40 /* Clock Byte counter */ 385 1.1 mw #define SIOP_CTEST5_ROFF 0x20 /* Reset SCSI offset */ 386 1.1 mw #define SIOP_CTEST5_MASR 0x10 /* Master set/reset pulses (of bits 3-0) */ 387 1.1 mw #define SIOP_CTEST5_DDIR 0x08 /* (re)set internal DMA direction */ 388 1.1 mw #define SIOP_CTEST5_EOP 0x04 /* (re)set internal EOP */ 389 1.1 mw #define SIOP_CTEST5_DREQ 0x02 /* (re)set internal REQ */ 390 1.1 mw #define SIOP_CTEST5_DACK 0x01 /* (re)set internal ACK */ 391 1.1 mw 392 1.1 mw /* Chip test register 6 (ctest6) DMA FIFO access */ 393 1.1 mw 394 1.1 mw /* Chip test register 7 (ctest7) */ 395 1.1 mw 396 1.6 chopps #define SIOP_CTEST7_CDIS 0x80 /* Cache burst disable */ 397 1.6 chopps #define SIOP_CTEST7_SC1 0x40 /* Snoop control 1 */ 398 1.6 chopps #define SIOP_CTEST7_SC0 0x20 /* Snoop contorl 0 */ 399 1.6 chopps #define SIOP_CTEST7_STD 0x10 /* Selection timeout disable */ 400 1.1 mw #define SIOP_CTEST7_DFP 0x08 /* DMA FIFO parity bit */ 401 1.1 mw #define SIOP_CTEST7_EVP 0x04 /* Even parity (to host bus) */ 402 1.6 chopps #define SIOP_CTEST7_TT1 0x02 /* Transfer type bit */ 403 1.1 mw #define SIOP_CTEST7_DIFF 0x01 /* Differential mode */ 404 1.1 mw 405 1.1 mw /* DMA FIFO register (dfifo) */ 406 1.1 mw 407 1.6 chopps #define SIOP_DFIFO_RES 0x80 408 1.6 chopps #define SIOP_DFIFO_BO 0x7f /* FIFO byte offset counter */ 409 1.1 mw 410 1.1 mw /* Interrupt status register (istat) */ 411 1.1 mw 412 1.1 mw #define SIOP_ISTAT_ABRT 0x80 /* Abort operation */ 413 1.6 chopps #define SIOP_ISTAT_RST 0x40 /* Software reset */ 414 1.6 chopps #define SIOP_ISTAT_SIGP 0x20 /* Signal process */ 415 1.6 chopps #define SIOP_ISTAT_RES 0x10 416 1.1 mw #define SIOP_ISTAT_CON 0x08 /* Connected */ 417 1.6 chopps #define SIOP_ISTAT_RES1 0x04 418 1.1 mw #define SIOP_ISTAT_SIP 0x02 /* SCSI Interrupt pending */ 419 1.1 mw #define SIOP_ISTAT_DIP 0x01 /* DMA Interrupt pending */ 420 1.1 mw 421 1.8 veego /* Chip test register 8 (ctest8) */ 422 1.6 chopps 423 1.6 chopps #define SIOP_CTEST8_V 0xf0 /* Chip revision level */ 424 1.6 chopps #define SIOP_CTEST8_FLF 0x08 /* Flush DMA FIFO */ 425 1.6 chopps #define SIOP_CTEST8_CLF 0x04 /* Clear DMA and SCSI FIFOs */ 426 1.6 chopps #define SIOP_CTEST8_FM 0x02 /* Fetch pin mode */ 427 1.6 chopps #define SIOP_CTEST8_SM 0x01 /* Snoop pins mode */ 428 1.1 mw 429 1.1 mw /* DMA Mode register (dmode) */ 430 1.1 mw 431 1.1 mw #define SIOP_DMODE_BL_MASK 0xc0 /* 0->1 1->2 2->4 3->8 */ 432 1.6 chopps #define SIOP_DMODE_FC 0x30 /* Function code */ 433 1.6 chopps #define SIOP_DMODE_PD 0x08 /* Program/data */ 434 1.6 chopps #define SIOP_DMODE_FAM 0x04 /* Fixed address mode */ 435 1.6 chopps #define SIOP_DMODE_U0 0x02 /* User programmable transfer type */ 436 1.6 chopps #define SIOP_DMODE_MAN 0x01 /* Manual start mode */ 437 1.1 mw 438 1.1 mw /* DMA interrupt enable register (dien) */ 439 1.1 mw 440 1.6 chopps #define SIOP_DIEN_RES 0xc0 441 1.6 chopps #define SIOP_DIEN_BF 0x20 /* On Bus Fault */ 442 1.1 mw #define SIOP_DIEN_ABRT 0x10 /* On Abort */ 443 1.1 mw #define SIOP_DIEN_SSI 0x08 /* On SCRIPTS sstep */ 444 1.1 mw #define SIOP_DIEN_SIR 0x04 /* On SCRIPTS intr instruction */ 445 1.1 mw #define SIOP_DIEN_WTD 0x02 /* On watchdog timeout */ 446 1.6 chopps #define SIOP_DIEN_IID 0x01 /* On illegal instruction detected */ 447 1.1 mw 448 1.1 mw /* DMA control register (dcntl) */ 449 1.1 mw 450 1.1 mw #define SIOP_DCNTL_CF_MASK 0xc0 /* Clock frequency dividers: 451 1.1 mw 0 --> 37.51..50.00 Mhz, div=2 452 1.1 mw 1 --> 25.01..37.50 Mhz, div=1.5 453 1.1 mw 2 --> 16.67..25.00 Mhz, div=1 454 1.6 chopps 3 --> 50.01..66.67 Mhz, div=3 455 1.1 mw */ 456 1.6 chopps #define SIOP_DCNTL_EA 0x20 /* Enable ack */ 457 1.1 mw #define SIOP_DCNTL_SSM 0x10 /* Single step mode */ 458 1.6 chopps #define SIOP_DCNTL_LLM 0x08 /* Enable SCSI Low-level mode */ 459 1.6 chopps #define SIOP_DCNTL_STD 0x04 /* Start DMA operation */ 460 1.6 chopps #define SIOP_DCNTL_FA 0x02 /* Fast arbitration */ 461 1.6 chopps #define SIOP_DCNTL_COM 0x01 /* 53C700 compatibility */ 462
Indexes created Mon Sep 29 03:10:08 GMT 2025