1 /* $NetBSD: aic6360reg.h,v 1.3 2005/12/11 12:21:25 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1994, 1995, 1996 Charles M. Hannum. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Charles M. Hannum. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * Copyright (c) 1994 Jarle Greipsland 21 * All rights reserved. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the above copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. The name of the author may not be used to endorse or promote products 32 * derived from this software without specific prior written permission. 33 * 34 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 35 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 36 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 37 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 38 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 39 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 40 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 41 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 42 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 43 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 44 * POSSIBILITY OF SUCH DAMAGE. 45 */ 46 47 /* 48 * Acknowledgements: Many of the algorithms used in this driver are 49 * inspired by the work of Julian Elischer (julian@tfs.com) and 50 * Charles Hannum (mycroft@duality.gnu.ai.mit.edu). Thanks a million! 51 */ 52 53 /* Definitions, most of them have turned out to be unnecessary, but here they 54 * are anyway. 55 */ 56 57 /* AIC6360 definitions */ 58 #define SCSISEQ 0x00 /* SCSI sequence control */ 59 #define SXFRCTL0 0x01 /* SCSI transfer control 0 */ 60 #define SXFRCTL1 0x02 /* SCSI transfer control 1 */ 61 #define SCSISIG 0x03 /* SCSI signal in/out */ 62 #define SCSIRATE 0x04 /* SCSI rate control */ 63 #define SCSIID 0x05 /* SCSI ID */ 64 #define SELID 0x05 /* Selection/Reselection ID */ 65 #define SCSIDAT 0x06 /* SCSI Latched Data */ 66 #define SCSIBUS 0x07 /* SCSI Data Bus*/ 67 #define STCNT0 0x08 /* SCSI transfer count */ 68 #define STCNT1 0x09 69 #define STCNT2 0x0a 70 #define CLRSINT0 0x0b /* Clear SCSI interrupts 0 */ 71 #define SSTAT0 0x0b /* SCSI interrupt status 0 */ 72 #define CLRSINT1 0x0c /* Clear SCSI interrupts 1 */ 73 #define SSTAT1 0x0c /* SCSI status 1 */ 74 #define SSTAT2 0x0d /* SCSI status 2 */ 75 #define SCSITEST 0x0e /* SCSI test control */ 76 #define SSTAT3 0x0e /* SCSI status 3 */ 77 #define CLRSERR 0x0f /* Clear SCSI errors */ 78 #define SSTAT4 0x0f /* SCSI status 4 */ 79 #define SIMODE0 0x10 /* SCSI interrupt mode 0 */ 80 #define SIMODE1 0x11 /* SCSI interrupt mode 1 */ 81 #define DMACNTRL0 0x12 /* DMA control 0 */ 82 #define DMACNTRL1 0x13 /* DMA control 1 */ 83 #define DMASTAT 0x14 /* DMA status */ 84 #define FIFOSTAT 0x15 /* FIFO status */ 85 #define DMADATA 0x16 /* DMA data */ 86 #define DMADATAL 0x16 /* DMA data low byte */ 87 #define DMADATAH 0x17 /* DMA data high byte */ 88 #define BRSTCNTRL 0x18 /* Burst Control */ 89 #define DMADATALONG 0x18 90 #define PORTA 0x1a /* Port A */ 91 #define PORTB 0x1b /* Port B */ 92 #define REV 0x1c /* Revision (001 for 6360) */ 93 #define STACK 0x1d /* Stack */ 94 #define TEST 0x1e /* Test register */ 95 #define ID 0x1f /* ID register */ 96 97 #define IDSTRING "(C)1991ADAPTECAIC6360 " 98 99 /* What all the bits do */ 100 101 /* SCSISEQ */ 102 #define TEMODEO 0x80 103 #define ENSELO 0x40 104 #define ENSELI 0x20 105 #define ENRESELI 0x10 106 #define ENAUTOATNO 0x08 107 #define ENAUTOATNI 0x04 108 #define ENAUTOATNP 0x02 109 #define SCSIRSTO 0x01 110 111 /* SXFRCTL0 */ 112 #define SCSIEN 0x80 113 #define DMAEN 0x40 114 #define CHEN 0x20 115 #define CLRSTCNT 0x10 116 #define SPIOEN 0x08 117 #define CLRCH 0x02 118 119 /* SXFRCTL1 */ 120 #define BITBUCKET 0x80 121 #define SWRAPEN 0x40 122 #define ENSPCHK 0x20 123 #define STIMESEL1 0x10 124 #define STIMESEL0 0x08 125 #define STIMO_256ms 0x00 126 #define STIMO_128ms 0x08 127 #define STIMO_64ms 0x10 128 #define STIMO_32ms 0x18 129 #define ENSTIMER 0x04 130 #define BYTEALIGN 0x02 131 132 /* SCSISIG (in) */ 133 #define CDI 0x80 134 #define IOI 0x40 135 #define MSGI 0x20 136 #define ATNI 0x10 137 #define SELI 0x08 138 #define BSYI 0x04 139 #define REQI 0x02 140 #define ACKI 0x01 141 142 /* Important! The 3 most significant bits of this register, in initiator mode, 143 * represents the "expected" SCSI bus phase and can be used to trigger phase 144 * mismatch and phase change interrupts. But more important: If there is a 145 * phase mismatch the chip will not transfer any data! This is actually a nice 146 * feature as it gives us a bit more control over what is happening when we are 147 * bursting data (in) through the FIFOs and the phase suddenly changes from 148 * DATA IN to STATUS or MESSAGE IN. The transfer will stop and wait for the 149 * proper phase to be set in this register instead of dumping the bits into the 150 * FIFOs. 151 */ 152 /* SCSISIG (out) */ 153 #define CDO 0x80 154 #define IOO 0x40 155 #define MSGO 0x20 156 #define ATNO 0x10 157 #define SELO 0x08 158 #define BSYO 0x04 159 #define REQO 0x02 160 #define ACKO 0x01 161 162 /* Information transfer phases */ 163 #define PH_DATAOUT (0) 164 #define PH_DATAIN (IOI) 165 #define PH_CMD (CDI) 166 #define PH_STAT (CDI | IOI) 167 #define PH_MSGOUT (MSGI | CDI) 168 #define PH_MSGIN (MSGI | CDI | IOI) 169 170 #define PH_MASK (MSGI | CDI | IOI) 171 172 #define PH_INVALID 0xff 173 174 /* SCSIRATE */ 175 #define SXFR2 0x40 176 #define SXFR1 0x20 177 #define SXFR0 0x10 178 #define SOFS3 0x08 179 #define SOFS2 0x04 180 #define SOFS1 0x02 181 #define SOFS0 0x01 182 183 /* SCSI ID */ 184 #define OID2 0x40 185 #define OID1 0x20 186 #define OID0 0x10 187 #define OID_S 4 /* shift value */ 188 #define TID2 0x04 189 #define TID1 0x02 190 #define TID0 0x01 191 #define SCSI_ID_MASK 0x7 192 193 /* SCSI selection/reselection ID (both target *and* initiator) */ 194 #define SELID7 0x80 195 #define SELID6 0x40 196 #define SELID5 0x20 197 #define SELID4 0x10 198 #define SELID3 0x08 199 #define SELID2 0x04 200 #define SELID1 0x02 201 #define SELID0 0x01 202 203 /* CLRSINT0 Clears what? (interrupt and/or status bit) */ 204 #define SETSDONE 0x80 205 #define CLRSELDO 0x40 /* I */ 206 #define CLRSELDI 0x20 /* I+ */ 207 #define CLRSELINGO 0x10 /* I */ 208 #define CLRSWRAP 0x08 /* I+S */ 209 #define CLRSDONE 0x04 /* I+S */ 210 #define CLRSPIORDY 0x02 /* I */ 211 #define CLRDMADONE 0x01 /* I */ 212 213 /* SSTAT0 Howto clear */ 214 #define TARGET 0x80 215 #define SELDO 0x40 /* Selfclearing */ 216 #define SELDI 0x20 /* Selfclearing when CLRSELDI is set */ 217 #define SELINGO 0x10 /* Selfclearing */ 218 #define SWRAP 0x08 /* CLRSWAP */ 219 #define SDONE 0x04 /* Not used in initiator mode */ 220 #define SPIORDY 0x02 /* Selfclearing (op on SCSIDAT) */ 221 #define DMADONE 0x01 /* Selfclearing (all FIFOs empty & T/C */ 222 223 /* CLRSINT1 Clears what? */ 224 #define CLRSELTIMO 0x80 /* I+S */ 225 #define CLRATNO 0x40 226 #define CLRSCSIRSTI 0x20 /* I+S */ 227 #define CLRBUSFREE 0x08 /* I+S */ 228 #define CLRSCSIPERR 0x04 /* I+S */ 229 #define CLRPHASECHG 0x02 /* I+S */ 230 #define CLRREQINIT 0x01 /* I+S */ 231 232 /* SSTAT1 How to clear? When set?*/ 233 #define SELTO 0x80 /* C select out timeout */ 234 #define ATNTARG 0x40 /* Not used in initiator mode */ 235 #define SCSIRSTI 0x20 /* C RST asserted */ 236 #define PHASEMIS 0x10 /* Selfclearing */ 237 #define BUSFREE 0x08 /* C bus free condition */ 238 #define SCSIPERR 0x04 /* C parity error on inbound data */ 239 #define PHASECHG 0x02 /* C phase in SCSISIG doesn't match */ 240 #define REQINIT 0x01 /* C or ACK asserting edge of REQ */ 241 242 /* SSTAT2 */ 243 #define SOFFSET 0x20 244 #define SEMPTY 0x10 245 #define SFULL 0x08 246 #define SFCNT2 0x04 247 #define SFCNT1 0x02 248 #define SFCNT0 0x01 249 250 /* SCSITEST */ 251 #define SCTESTU 0x08 252 #define SCTESTD 0x04 253 #define STCTEST 0x01 254 255 /* SSTAT3 */ 256 #define SCSICNT3 0x80 257 #define SCSICNT2 0x40 258 #define SCSICNT1 0x20 259 #define SCSICNT0 0x10 260 #define OFFCNT3 0x08 261 #define OFFCNT2 0x04 262 #define OFFCNT1 0x02 263 #define OFFCNT0 0x01 264 265 /* CLRSERR */ 266 #define CLRSYNCERR 0x04 267 #define CLRFWERR 0x02 268 #define CLRFRERR 0x01 269 270 /* SSTAT4 */ 271 #define SYNCERR 0x04 272 #define FWERR 0x02 273 #define FRERR 0x01 274 275 /* SIMODE0 */ 276 #define ENSELDO 0x40 277 #define ENSELDI 0x20 278 #define ENSELINGO 0x10 279 #define ENSWRAP 0x08 280 #define ENSDONE 0x04 281 #define ENSPIORDY 0x02 282 #define ENDMADONE 0x01 283 284 /* SIMODE1 */ 285 #define ENSELTIMO 0x80 286 #define ENATNTARG 0x40 287 #define ENSCSIRST 0x20 288 #define ENPHASEMIS 0x10 289 #define ENBUSFREE 0x08 290 #define ENSCSIPERR 0x04 291 #define ENPHASECHG 0x02 292 #define ENREQINIT 0x01 293 294 /* DMACNTRL0 */ 295 #define ENDMA 0x80 296 #define B8MODE 0x40 297 #define DMA 0x20 298 #define DWORDPIO 0x10 299 #define WRITE 0x08 300 #define INTEN 0x04 301 #define RSTFIFO 0x02 302 #define SWINT 0x01 303 304 /* DMACNTRL1 */ 305 #define PWRDWN 0x80 306 #define ENSTK32 0x40 307 #define STK4 0x10 308 #define STK3 0x08 309 #define STK2 0x04 310 #define STK1 0x02 311 #define STK0 0x01 312 313 /* DMASTAT */ 314 #define ATDONE 0x80 315 #define WORDRDY 0x40 316 #define INTSTAT 0x20 317 #define DFIFOFULL 0x10 318 #define DFIFOEMP 0x08 319 #define DFIFOHF 0x04 320 #define DWORDRDY 0x02 321 322 /* BRSTCNTRL */ 323 #define BON3 0x80 324 #define BON2 0x40 325 #define BON1 0x20 326 #define BON0 0x10 327 #define BOFF3 0x08 328 #define BOFF2 0x04 329 #define BOFF1 0x02 330 #define BOFF0 0x01 331 332 /* TEST */ 333 #define BOFFTMR 0x40 334 #define BONTMR 0x20 335 #define STCNTH 0x10 336 #define STCNTM 0x08 337 #define STCNTL 0x04 338 #define SCSIBLK 0x02 339 #define DMABLK 0x01 340