1 /* 2 * Product specific probe and attach routines for: 3 * 27/284X and aic7770 motherboard SCSI controllers 4 * 5 * Copyright (c) 1994-1998, 2000, 2001 Justin T. Gibbs. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions, and the following disclaimer, 13 * without modification. 14 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 15 * substantially similar to the "NO WARRANTY" disclaimer below 16 * ("Disclaimer") and any redistribution must be conditioned upon 17 * including a substantially similar Disclaimer requirement for further 18 * binary redistribution. 19 * 3. Neither the names of the above-listed copyright holders nor the names 20 * of any contributors may be used to endorse or promote products derived 21 * from this software without specific prior written permission. 22 * 23 * Alternatively, this software may be distributed under the terms of the 24 * GNU General Public License ("GPL") version 2 as published by the Free 25 * Software Foundation. 26 * 27 * NO WARRANTY 28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 32 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 36 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 37 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGES. 39 * 40 * $Id: //depot/aic7xxx/aic7xxx/aic7770.c#32 $ 41 * 42 * $FreeBSD$ 43 */ 44 45 #ifdef __linux__ 46 #include "aic7xxx_osm.h" 47 #include "aic7xxx_inline.h" 48 #include "aic7xxx_93cx6.h" 49 #else 50 #include <dev/aic7xxx/aic7xxx_osm.h> 51 #include <dev/aic7xxx/aic7xxx_inline.h> 52 #include <dev/aic7xxx/aic7xxx_93cx6.h> 53 #endif 54 55 #define ID_AIC7770 0x04907770 56 #define ID_AHA_274x 0x04907771 57 #define ID_AHA_284xB 0x04907756 /* BIOS enabled */ 58 #define ID_AHA_284x 0x04907757 /* BIOS disabled*/ 59 #define ID_OLV_274x 0x04907782 /* Olivetti OEM */ 60 #define ID_OLV_274xD 0x04907783 /* Olivetti OEM (Differential) */ 61 62 static int aic7770_chip_init(struct ahc_softc *ahc); 63 static int aic7770_suspend(struct ahc_softc *ahc); 64 static int aic7770_resume(struct ahc_softc *ahc); 65 static int aha2840_load_seeprom(struct ahc_softc *ahc); 66 static ahc_device_setup_t ahc_aic7770_VL_setup; 67 static ahc_device_setup_t ahc_aic7770_EISA_setup; 68 static ahc_device_setup_t ahc_aic7770_setup; 69 70 struct aic7770_identity aic7770_ident_table[] = 71 { 72 { 73 ID_AHA_274x, 74 0xFFFFFFFF, 75 "Adaptec 274X SCSI adapter", 76 ahc_aic7770_EISA_setup 77 }, 78 { 79 ID_AHA_284xB, 80 0xFFFFFFFE, 81 "Adaptec 284X SCSI adapter", 82 ahc_aic7770_VL_setup 83 }, 84 { 85 ID_AHA_284x, 86 0xFFFFFFFE, 87 "Adaptec 284X SCSI adapter (BIOS Disabled)", 88 ahc_aic7770_VL_setup 89 }, 90 { 91 ID_OLV_274x, 92 0xFFFFFFFF, 93 "Adaptec (Olivetti OEM) 274X SCSI adapter", 94 ahc_aic7770_EISA_setup 95 }, 96 { 97 ID_OLV_274xD, 98 0xFFFFFFFF, 99 "Adaptec (Olivetti OEM) 274X Differential SCSI adapter", 100 ahc_aic7770_EISA_setup 101 }, 102 /* Generic chip probes for devices we don't know 'exactly' */ 103 { 104 ID_AIC7770, 105 0xFFFFFFFF, 106 "Adaptec aic7770 SCSI adapter", 107 ahc_aic7770_EISA_setup 108 } 109 }; 110 const int ahc_num_aic7770_devs = NUM_ELEMENTS(aic7770_ident_table); 111 112 struct aic7770_identity * 113 aic7770_find_device(uint32_t id) 114 { 115 struct aic7770_identity *entry; 116 int i; 117 118 for (i = 0; i < ahc_num_aic7770_devs; i++) { 119 entry = &aic7770_ident_table[i]; 120 if (entry->full_id == (id & entry->id_mask)) 121 return (entry); 122 } 123 return (NULL); 124 } 125 126 int 127 aic7770_config(struct ahc_softc *ahc, struct aic7770_identity *entry, u_int io) 128 { 129 u_long l; 130 int error; 131 int have_seeprom; 132 u_int hostconf; 133 u_int irq; 134 u_int intdef; 135 136 error = entry->setup(ahc); 137 have_seeprom = 0; 138 if (error != 0) 139 return (error); 140 141 error = aic7770_map_registers(ahc, io); 142 if (error != 0) 143 return (error); 144 145 /* 146 * Before we continue probing the card, ensure that 147 * its interrupts are *disabled*. We don't want 148 * a misstep to hang the machine in an interrupt 149 * storm. 150 */ 151 ahc_intr_enable(ahc, FALSE); 152 153 ahc->description = entry->name; 154 error = ahc_softc_init(ahc); 155 if (error != 0) 156 return (error); 157 158 ahc->bus_chip_init = aic7770_chip_init; 159 ahc->bus_suspend = aic7770_suspend; 160 ahc->bus_resume = aic7770_resume; 161 162 error = ahc_reset(ahc, /*reinit*/FALSE); 163 if (error != 0) 164 return (error); 165 166 /* Make sure we have a valid interrupt vector */ 167 intdef = ahc_inb(ahc, INTDEF); 168 irq = intdef & VECTOR; 169 switch (irq) { 170 case 9: 171 case 10: 172 case 11: 173 case 12: 174 case 14: 175 case 15: 176 break; 177 default: 178 printf("aic7770_config: invalid irq setting %d\n", intdef); 179 return (ENXIO); 180 } 181 182 if ((intdef & EDGE_TRIG) != 0) 183 ahc->flags |= AHC_EDGE_INTERRUPT; 184 185 switch (ahc->chip & (AHC_EISA|AHC_VL)) { 186 case AHC_EISA: 187 { 188 u_int biosctrl; 189 u_int scsiconf; 190 u_int scsiconf1; 191 192 biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL); 193 scsiconf = ahc_inb(ahc, SCSICONF); 194 scsiconf1 = ahc_inb(ahc, SCSICONF + 1); 195 196 /* Get the primary channel information */ 197 if ((biosctrl & CHANNEL_B_PRIMARY) != 0) 198 ahc->flags |= 1; 199 200 if ((biosctrl & BIOSMODE) == BIOSDISABLED) { 201 ahc->flags |= AHC_USEDEFAULTS; 202 } else { 203 if ((ahc->features & AHC_WIDE) != 0) { 204 ahc->our_id = scsiconf1 & HWSCSIID; 205 if (scsiconf & TERM_ENB) 206 ahc->flags |= AHC_TERM_ENB_A; 207 } else { 208 ahc->our_id = scsiconf & HSCSIID; 209 ahc->our_id_b = scsiconf1 & HSCSIID; 210 if (scsiconf & TERM_ENB) 211 ahc->flags |= AHC_TERM_ENB_A; 212 if (scsiconf1 & TERM_ENB) 213 ahc->flags |= AHC_TERM_ENB_B; 214 } 215 } 216 if ((ahc_inb(ahc, HA_274_BIOSGLOBAL) & HA_274_EXTENDED_TRANS)) 217 ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B; 218 break; 219 } 220 case AHC_VL: 221 { 222 have_seeprom = aha2840_load_seeprom(ahc); 223 break; 224 } 225 default: 226 break; 227 } 228 if (have_seeprom == 0) { 229 free(ahc->seep_config, M_DEVBUF); 230 ahc->seep_config = NULL; 231 } 232 233 /* 234 * Ensure autoflush is enabled 235 */ 236 ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS); 237 238 /* Setup the FIFO threshold and the bus off time */ 239 hostconf = ahc_inb(ahc, HOSTCONF); 240 ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH); 241 ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF); 242 243 ahc->bus_softc.aic7770_softc.busspd = hostconf & DFTHRSH; 244 ahc->bus_softc.aic7770_softc.bustime = (hostconf << 2) & BOFF; 245 246 /* 247 * Generic aic7xxx initialization. 248 */ 249 error = ahc_init(ahc); 250 if (error != 0) 251 return (error); 252 253 error = aic7770_map_int(ahc, irq); 254 if (error != 0) 255 return (error); 256 257 ahc->init_level++; 258 259 /* 260 * Enable the board's BUS drivers 261 */ 262 ahc_outb(ahc, BCTL, ENABLE); 263 return (0); 264 } 265 266 static int 267 aic7770_chip_init(struct ahc_softc *ahc) 268 { 269 ahc_outb(ahc, BUSSPD, ahc->bus_softc.aic7770_softc.busspd); 270 ahc_outb(ahc, BUSTIME, ahc->bus_softc.aic7770_softc.bustime); 271 ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS); 272 ahc_outb(ahc, BCTL, ENABLE); 273 return (ahc_chip_init(ahc)); 274 } 275 276 static int 277 aic7770_suspend(struct ahc_softc *ahc) 278 { 279 return (ahc_suspend(ahc)); 280 } 281 282 static int 283 aic7770_resume(struct ahc_softc *ahc) 284 { 285 return (ahc_resume(ahc)); 286 } 287 288 /* 289 * Read the 284x SEEPROM. 290 */ 291 static int 292 aha2840_load_seeprom(struct ahc_softc *ahc) 293 { 294 struct seeprom_descriptor sd; 295 struct seeprom_config *sc; 296 int have_seeprom; 297 uint8_t scsi_conf; 298 299 sd.sd_ahc = ahc; 300 sd.sd_control_offset = SEECTL_2840; 301 sd.sd_status_offset = STATUS_2840; 302 sd.sd_dataout_offset = STATUS_2840; 303 sd.sd_chip = C46; 304 sd.sd_MS = 0; 305 sd.sd_RDY = EEPROM_TF; 306 sd.sd_CS = CS_2840; 307 sd.sd_CK = CK_2840; 308 sd.sd_DO = DO_2840; 309 sd.sd_DI = DI_2840; 310 sc = ahc->seep_config; 311 312 if (bootverbose) 313 printf("%s: Reading SEEPROM...", ahc_name(ahc)); 314 have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc, 315 /*start_addr*/0, sizeof(*sc)/2); 316 317 if (have_seeprom) { 318 319 if (ahc_verify_cksum(sc) == 0) { 320 if(bootverbose) 321 printf ("checksum error\n"); 322 have_seeprom = 0; 323 } else if (bootverbose) { 324 printf("done.\n"); 325 } 326 } 327 328 if (!have_seeprom) { 329 if (bootverbose) 330 printf("%s: No SEEPROM available\n", ahc_name(ahc)); 331 ahc->flags |= AHC_USEDEFAULTS; 332 } else { 333 /* 334 * Put the data we've collected down into SRAM 335 * where ahc_init will find it. 336 */ 337 int i; 338 int max_targ; 339 uint16_t discenable; 340 341 max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8; 342 discenable = 0; 343 for (i = 0; i < max_targ; i++){ 344 uint8_t target_settings; 345 346 target_settings = (sc->device_flags[i] & CFXFER) << 4; 347 if (sc->device_flags[i] & CFSYNCH) 348 target_settings |= SOFS; 349 if (sc->device_flags[i] & CFWIDEB) 350 target_settings |= WIDEXFER; 351 if (sc->device_flags[i] & CFDISC) 352 discenable |= (0x01 << i); 353 ahc_outb(ahc, TARG_SCSIRATE + i, target_settings); 354 } 355 ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff)); 356 ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff)); 357 358 ahc->our_id = sc->brtime_id & CFSCSIID; 359 360 scsi_conf = (ahc->our_id & 0x7); 361 if (sc->adapter_control & CFSPARITY) 362 scsi_conf |= ENSPCHK; 363 if (sc->adapter_control & CFRESETB) 364 scsi_conf |= RESET_SCSI; 365 366 if (sc->bios_control & CF284XEXTEND) 367 ahc->flags |= AHC_EXTENDED_TRANS_A; 368 /* Set SCSICONF info */ 369 ahc_outb(ahc, SCSICONF, scsi_conf); 370 371 if (sc->adapter_control & CF284XSTERM) 372 ahc->flags |= AHC_TERM_ENB_A; 373 } 374 return (have_seeprom); 375 } 376 377 static int 378 ahc_aic7770_VL_setup(struct ahc_softc *ahc) 379 { 380 int error; 381 382 error = ahc_aic7770_setup(ahc); 383 ahc->chip |= AHC_VL; 384 return (error); 385 } 386 387 static int 388 ahc_aic7770_EISA_setup(struct ahc_softc *ahc) 389 { 390 int error; 391 392 error = ahc_aic7770_setup(ahc); 393 ahc->chip |= AHC_EISA; 394 return (error); 395 } 396 397 static int 398 ahc_aic7770_setup(struct ahc_softc *ahc) 399 { 400 ahc->channel = 'A'; 401 ahc->channel_b = 'B'; 402 ahc->chip = AHC_AIC7770; 403 ahc->features = AHC_AIC7770_FE; 404 ahc->bugs |= AHC_TMODE_WIDEODD_BUG; 405 ahc->flags |= AHC_PAGESCBS; 406 ahc->instruction_ram_size = 448; 407 return (0); 408 } 409