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#34 $ 41 */ 42 43 #ifdef __linux__ 44 #include "aic7xxx_osm.h" 45 #include "aic7xxx_inline.h" 46 #include "aic7xxx_93cx6.h" 47 #else 48 #include <sys/cdefs.h> 49 __FBSDID("$FreeBSD$"); 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 int error; 130 int have_seeprom; 131 u_int hostconf; 132 u_int irq; 133 u_int intdef; 134 135 error = entry->setup(ahc); 136 have_seeprom = 0; 137 if (error != 0) 138 return (error); 139 140 error = aic7770_map_registers(ahc, io); 141 if (error != 0) 142 return (error); 143 144 /* 145 * Before we continue probing the card, ensure that 146 * its interrupts are *disabled*. We don't want 147 * a misstep to hang the machine in an interrupt 148 * storm. 149 */ 150 ahc_intr_enable(ahc, FALSE); 151 152 ahc->description = entry->name; 153 error = ahc_softc_init(ahc); 154 if (error != 0) 155 return (error); 156 157 ahc->bus_chip_init = aic7770_chip_init; 158 ahc->bus_suspend = aic7770_suspend; 159 ahc->bus_resume = aic7770_resume; 160 161 error = ahc_reset(ahc, /*reinit*/FALSE); 162 if (error != 0) 163 return (error); 164 165 /* Make sure we have a valid interrupt vector */ 166 intdef = ahc_inb(ahc, INTDEF); 167 irq = intdef & VECTOR; 168 switch (irq) { 169 case 9: 170 case 10: 171 case 11: 172 case 12: 173 case 14: 174 case 15: 175 break; 176 default: 177 printf("aic7770_config: invalid irq setting %d\n", intdef); 178 return (ENXIO); 179 } 180 181 if ((intdef & EDGE_TRIG) != 0) 182 ahc->flags |= AHC_EDGE_INTERRUPT; 183 184 switch (ahc->chip & (AHC_EISA|AHC_VL)) { 185 case AHC_EISA: 186 { 187 u_int biosctrl; 188 u_int scsiconf; 189 u_int scsiconf1; 190 191 biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL); 192 scsiconf = ahc_inb(ahc, SCSICONF); 193 scsiconf1 = ahc_inb(ahc, SCSICONF + 1); 194 195 /* Get the primary channel information */ 196 if ((biosctrl & CHANNEL_B_PRIMARY) != 0) 197 ahc->flags |= 1; 198 199 if ((biosctrl & BIOSMODE) == BIOSDISABLED) { 200 ahc->flags |= AHC_USEDEFAULTS; 201 } else { 202 if ((ahc->features & AHC_WIDE) != 0) { 203 ahc->our_id = scsiconf1 & HWSCSIID; 204 if (scsiconf & TERM_ENB) 205 ahc->flags |= AHC_TERM_ENB_A; 206 } else { 207 ahc->our_id = scsiconf & HSCSIID; 208 ahc->our_id_b = scsiconf1 & HSCSIID; 209 if (scsiconf & TERM_ENB) 210 ahc->flags |= AHC_TERM_ENB_A; 211 if (scsiconf1 & TERM_ENB) 212 ahc->flags |= AHC_TERM_ENB_B; 213 } 214 } 215 if ((ahc_inb(ahc, HA_274_BIOSGLOBAL) & HA_274_EXTENDED_TRANS)) 216 ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B; 217 break; 218 } 219 case AHC_VL: 220 { 221 have_seeprom = aha2840_load_seeprom(ahc); 222 break; 223 } 224 default: 225 break; 226 } 227 if (have_seeprom == 0) { 228 free(ahc->seep_config, M_DEVBUF); 229 ahc->seep_config = NULL; 230 } 231 232 /* 233 * Ensure autoflush is enabled 234 */ 235 ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS); 236 237 /* Setup the FIFO threshold and the bus off time */ 238 hostconf = ahc_inb(ahc, HOSTCONF); 239 ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH); 240 ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF); 241 242 ahc->bus_softc.aic7770_softc.busspd = hostconf & DFTHRSH; 243 ahc->bus_softc.aic7770_softc.bustime = (hostconf << 2) & BOFF; 244 245 /* 246 * Generic aic7xxx initialization. 247 */ 248 error = ahc_init(ahc); 249 if (error != 0) 250 return (error); 251 252 error = aic7770_map_int(ahc, irq); 253 if (error != 0) 254 return (error); 255 256 ahc_lock(ahc); 257 /* 258 * Link this softc in with all other ahc instances. 259 */ 260 ahc_softc_insert(ahc); 261 262 /* 263 * Enable the board's BUS drivers 264 */ 265 ahc_outb(ahc, BCTL, ENABLE); 266 267 ahc_unlock(ahc); 268 269 return (0); 270 } 271 272 static int 273 aic7770_chip_init(struct ahc_softc *ahc) 274 { 275 ahc_outb(ahc, BUSSPD, ahc->bus_softc.aic7770_softc.busspd); 276 ahc_outb(ahc, BUSTIME, ahc->bus_softc.aic7770_softc.bustime); 277 ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS); 278 ahc_outb(ahc, BCTL, ENABLE); 279 return (ahc_chip_init(ahc)); 280 } 281 282 static int 283 aic7770_suspend(struct ahc_softc *ahc) 284 { 285 return (ahc_suspend(ahc)); 286 } 287 288 static int 289 aic7770_resume(struct ahc_softc *ahc) 290 { 291 return (ahc_resume(ahc)); 292 } 293 294 /* 295 * Read the 284x SEEPROM. 296 */ 297 static int 298 aha2840_load_seeprom(struct ahc_softc *ahc) 299 { 300 struct seeprom_descriptor sd; 301 struct seeprom_config *sc; 302 int have_seeprom; 303 uint8_t scsi_conf; 304 305 sd.sd_ahc = ahc; 306 sd.sd_control_offset = SEECTL_2840; 307 sd.sd_status_offset = STATUS_2840; 308 sd.sd_dataout_offset = STATUS_2840; 309 sd.sd_chip = C46; 310 sd.sd_MS = 0; 311 sd.sd_RDY = EEPROM_TF; 312 sd.sd_CS = CS_2840; 313 sd.sd_CK = CK_2840; 314 sd.sd_DO = DO_2840; 315 sd.sd_DI = DI_2840; 316 sc = ahc->seep_config; 317 318 if (bootverbose) 319 printf("%s: Reading SEEPROM...", ahc_name(ahc)); 320 have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc, 321 /*start_addr*/0, sizeof(*sc)/2); 322 323 if (have_seeprom) { 324 325 if (ahc_verify_cksum(sc) == 0) { 326 if(bootverbose) 327 printf ("checksum error\n"); 328 have_seeprom = 0; 329 } else if (bootverbose) { 330 printf("done.\n"); 331 } 332 } 333 334 if (!have_seeprom) { 335 if (bootverbose) 336 printf("%s: No SEEPROM available\n", ahc_name(ahc)); 337 ahc->flags |= AHC_USEDEFAULTS; 338 } else { 339 /* 340 * Put the data we've collected down into SRAM 341 * where ahc_init will find it. 342 */ 343 int i; 344 int max_targ; 345 uint16_t discenable; 346 347 max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8; 348 discenable = 0; 349 for (i = 0; i < max_targ; i++){ 350 uint8_t target_settings; 351 352 target_settings = (sc->device_flags[i] & CFXFER) << 4; 353 if (sc->device_flags[i] & CFSYNCH) 354 target_settings |= SOFS; 355 if (sc->device_flags[i] & CFWIDEB) 356 target_settings |= WIDEXFER; 357 if (sc->device_flags[i] & CFDISC) 358 discenable |= (0x01 << i); 359 ahc_outb(ahc, TARG_SCSIRATE + i, target_settings); 360 } 361 ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff)); 362 ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff)); 363 364 ahc->our_id = sc->brtime_id & CFSCSIID; 365 366 scsi_conf = (ahc->our_id & 0x7); 367 if (sc->adapter_control & CFSPARITY) 368 scsi_conf |= ENSPCHK; 369 if (sc->adapter_control & CFRESETB) 370 scsi_conf |= RESET_SCSI; 371 372 if (sc->bios_control & CF284XEXTEND) 373 ahc->flags |= AHC_EXTENDED_TRANS_A; 374 /* Set SCSICONF info */ 375 ahc_outb(ahc, SCSICONF, scsi_conf); 376 377 if (sc->adapter_control & CF284XSTERM) 378 ahc->flags |= AHC_TERM_ENB_A; 379 } 380 return (have_seeprom); 381 } 382 383 static int 384 ahc_aic7770_VL_setup(struct ahc_softc *ahc) 385 { 386 int error; 387 388 error = ahc_aic7770_setup(ahc); 389 ahc->chip |= AHC_VL; 390 return (error); 391 } 392 393 static int 394 ahc_aic7770_EISA_setup(struct ahc_softc *ahc) 395 { 396 int error; 397 398 error = ahc_aic7770_setup(ahc); 399 ahc->chip |= AHC_EISA; 400 return (error); 401 } 402 403 static int 404 ahc_aic7770_setup(struct ahc_softc *ahc) 405 { 406 ahc->channel = 'A'; 407 ahc->channel_b = 'B'; 408 ahc->chip = AHC_AIC7770; 409 ahc->features = AHC_AIC7770_FE; 410 ahc->bugs |= AHC_TMODE_WIDEODD_BUG; 411 ahc->flags |= AHC_PAGESCBS; 412 ahc->instruction_ram_size = 448; 413 return (0); 414 } 415