Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/aic7xxx/aic7770.c
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1 /*- 2 * Product specific probe and attach routines for: 3 * 27/284X and aic7770 motherboard SCSI controllers 4 * 5 * SPDX-License-Identifier: BSD-3-Clause 6 * 7 * Copyright (c) 1994-1998, 2000, 2001 Justin T. Gibbs. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions, and the following disclaimer, 15 * without modification. 16 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 17 * substantially similar to the "NO WARRANTY" disclaimer below 18 * ("Disclaimer") and any redistribution must be conditioned upon 19 * including a substantially similar Disclaimer requirement for further 20 * binary redistribution. 21 * 3. Neither the names of the above-listed copyright holders nor the names 22 * of any contributors may be used to endorse or promote products derived 23 * from this software without specific prior written permission. 24 * 25 * Alternatively, this software may be distributed under the terms of the 26 * GNU General Public License ("GPL") version 2 as published by the Free 27 * Software Foundation. 28 * 29 * NO WARRANTY 30 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 31 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 32 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 33 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 34 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 35 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 36 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 38 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 39 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 40 * POSSIBILITY OF SUCH DAMAGES. 41 * 42 * $Id: //depot/aic7xxx/aic7xxx/aic7770.c#34 $ 43 */ 44 45 #ifdef __linux__ 46 #include "aic7xxx_osm.h" 47 #include "aic7xxx_inline.h" 48 #include "aic7xxx_93cx6.h" 49 #else 50 #include <sys/cdefs.h> 51 __FBSDID("$FreeBSD$"); 52 #include <dev/aic7xxx/aic7xxx_osm.h> 53 #include <dev/aic7xxx/aic7xxx_inline.h> 54 #include <dev/aic7xxx/aic7xxx_93cx6.h> 55 #endif 56 57 #define ID_AIC7770 0x04907770 58 #define ID_AHA_274x 0x04907771 59 #define ID_AHA_284xB 0x04907756 /* BIOS enabled */ 60 #define ID_AHA_284x 0x04907757 /* BIOS disabled*/ 61 #define ID_OLV_274x 0x04907782 /* Olivetti OEM */ 62 #define ID_OLV_274xD 0x04907783 /* Olivetti OEM (Differential) */ 63 64 static int aic7770_chip_init(struct ahc_softc *ahc); 65 static int aic7770_suspend(struct ahc_softc *ahc); 66 static int aic7770_resume(struct ahc_softc *ahc); 67 static int aha2840_load_seeprom(struct ahc_softc *ahc); 68 static ahc_device_setup_t ahc_aic7770_VL_setup; 69 static ahc_device_setup_t ahc_aic7770_EISA_setup; /* Really just ISA */ 70 static ahc_device_setup_t ahc_aic7770_setup; 71 72 struct aic7770_identity aic7770_ident_table[] = 73 { 74 { 75 ID_AHA_274x, 76 0xFFFFFFFF, 77 "Adaptec 274X SCSI adapter", 78 ahc_aic7770_EISA_setup 79 }, 80 { 81 ID_AHA_284xB, 82 0xFFFFFFFE, 83 "Adaptec 284X SCSI adapter", 84 ahc_aic7770_VL_setup 85 }, 86 { 87 ID_AHA_284x, 88 0xFFFFFFFE, 89 "Adaptec 284X SCSI adapter (BIOS Disabled)", 90 ahc_aic7770_VL_setup 91 }, 92 { 93 ID_OLV_274x, 94 0xFFFFFFFF, 95 "Adaptec (Olivetti OEM) 274X SCSI adapter", 96 ahc_aic7770_EISA_setup 97 }, 98 { 99 ID_OLV_274xD, 100 0xFFFFFFFF, 101 "Adaptec (Olivetti OEM) 274X Differential SCSI adapter", 102 ahc_aic7770_EISA_setup 103 }, 104 /* Generic chip probes for devices we don't know 'exactly' */ 105 { 106 ID_AIC7770, 107 0xFFFFFFFF, 108 "Adaptec aic7770 SCSI adapter", 109 ahc_aic7770_EISA_setup 110 } 111 }; 112 const int ahc_num_aic7770_devs = NUM_ELEMENTS(aic7770_ident_table); 113 114 struct aic7770_identity * 115 aic7770_find_device(uint32_t id) 116 { 117 struct aic7770_identity *entry; 118 int i; 119 120 for (i = 0; i < ahc_num_aic7770_devs; i++) { 121 entry = &aic7770_ident_table[i]; 122 if (entry->full_id == (id & entry->id_mask)) 123 return (entry); 124 } 125 return (NULL); 126 } 127 128 int 129 aic7770_config(struct ahc_softc *ahc, struct aic7770_identity *entry, u_int io) 130 { 131 int error; 132 int have_seeprom; 133 u_int hostconf; 134 u_int irq; 135 u_int intdef; 136 137 error = entry->setup(ahc); 138 have_seeprom = 0; 139 if (error != 0) 140 return (error); 141 142 error = aic7770_map_registers(ahc, io); 143 if (error != 0) 144 return (error); 145 146 /* 147 * Before we continue probing the card, ensure that 148 * its interrupts are *disabled*. We don't want 149 * a misstep to hang the machine in an interrupt 150 * storm. 151 */ 152 ahc_intr_enable(ahc, FALSE); 153 154 ahc->description = entry->name; 155 error = ahc_softc_init(ahc); 156 if (error != 0) 157 return (error); 158 159 ahc->bus_chip_init = aic7770_chip_init; 160 ahc->bus_suspend = aic7770_suspend; 161 ahc->bus_resume = aic7770_resume; 162 163 error = ahc_reset(ahc, /*reinit*/FALSE); 164 if (error != 0) 165 return (error); 166 167 /* Make sure we have a valid interrupt vector */ 168 intdef = ahc_inb(ahc, INTDEF); 169 irq = intdef & VECTOR; 170 switch (irq) { 171 case 9: 172 case 10: 173 case 11: 174 case 12: 175 case 14: 176 case 15: 177 break; 178 default: 179 printf("aic7770_config: invalid irq setting %d\n", intdef); 180 return (ENXIO); 181 } 182 183 if ((intdef & EDGE_TRIG) != 0) 184 ahc->flags |= AHC_EDGE_INTERRUPT; 185 186 switch (ahc->chip & (AHC_EISA|AHC_VL)) { 187 case AHC_EISA: 188 { 189 u_int biosctrl; 190 u_int scsiconf; 191 u_int scsiconf1; 192 193 biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL); 194 scsiconf = ahc_inb(ahc, SCSICONF); 195 scsiconf1 = ahc_inb(ahc, SCSICONF + 1); 196 197 /* Get the primary channel information */ 198 if ((biosctrl & CHANNEL_B_PRIMARY) != 0) 199 ahc->flags |= 1; 200 201 if ((biosctrl & BIOSMODE) == BIOSDISABLED) { 202 ahc->flags |= AHC_USEDEFAULTS; 203 } else { 204 if ((ahc->features & AHC_WIDE) != 0) { 205 ahc->our_id = scsiconf1 & HWSCSIID; 206 if (scsiconf & TERM_ENB) 207 ahc->flags |= AHC_TERM_ENB_A; 208 } else { 209 ahc->our_id = scsiconf & HSCSIID; 210 ahc->our_id_b = scsiconf1 & HSCSIID; 211 if (scsiconf & TERM_ENB) 212 ahc->flags |= AHC_TERM_ENB_A; 213 if (scsiconf1 & TERM_ENB) 214 ahc->flags |= AHC_TERM_ENB_B; 215 } 216 } 217 if ((ahc_inb(ahc, HA_274_BIOSGLOBAL) & HA_274_EXTENDED_TRANS)) 218 ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B; 219 break; 220 } 221 case AHC_VL: 222 { 223 have_seeprom = aha2840_load_seeprom(ahc); 224 break; 225 } 226 default: 227 break; 228 } 229 if (have_seeprom == 0) { 230 free(ahc->seep_config, M_DEVBUF); 231 ahc->seep_config = NULL; 232 } 233 234 /* 235 * Ensure autoflush is enabled 236 */ 237 ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS); 238 239 /* Setup the FIFO threshold and the bus off time */ 240 hostconf = ahc_inb(ahc, HOSTCONF); 241 ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH); 242 ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF); 243 244 ahc->bus_softc.aic7770_softc.busspd = hostconf & DFTHRSH; 245 ahc->bus_softc.aic7770_softc.bustime = (hostconf << 2) & BOFF; 246 247 /* 248 * Generic aic7xxx initialization. 249 */ 250 error = ahc_init(ahc); 251 if (error != 0) 252 return (error); 253 254 error = aic7770_map_int(ahc, irq); 255 if (error != 0) 256 return (error); 257 258 ahc_lock(ahc); 259 /* 260 * Link this softc in with all other ahc instances. 261 */ 262 ahc_softc_insert(ahc); 263 264 /* 265 * Enable the board's BUS drivers 266 */ 267 ahc_outb(ahc, BCTL, ENABLE); 268 269 ahc_unlock(ahc); 270 271 return (0); 272 } 273 274 static int 275 aic7770_chip_init(struct ahc_softc *ahc) 276 { 277 ahc_outb(ahc, BUSSPD, ahc->bus_softc.aic7770_softc.busspd); 278 ahc_outb(ahc, BUSTIME, ahc->bus_softc.aic7770_softc.bustime); 279 ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS); 280 ahc_outb(ahc, BCTL, ENABLE); 281 return (ahc_chip_init(ahc)); 282 } 283 284 static int 285 aic7770_suspend(struct ahc_softc *ahc) 286 { 287 return (ahc_suspend(ahc)); 288 } 289 290 static int 291 aic7770_resume(struct ahc_softc *ahc) 292 { 293 return (ahc_resume(ahc)); 294 } 295 296 /* 297 * Read the 284x SEEPROM. 298 */ 299 static int 300 aha2840_load_seeprom(struct ahc_softc *ahc) 301 { 302 struct seeprom_descriptor sd; 303 struct seeprom_config *sc; 304 int have_seeprom; 305 uint8_t scsi_conf; 306 307 sd.sd_ahc = ahc; 308 sd.sd_control_offset = SEECTL_2840; 309 sd.sd_status_offset = STATUS_2840; 310 sd.sd_dataout_offset = STATUS_2840; 311 sd.sd_chip = C46; 312 sd.sd_MS = 0; 313 sd.sd_RDY = EEPROM_TF; 314 sd.sd_CS = CS_2840; 315 sd.sd_CK = CK_2840; 316 sd.sd_DO = DO_2840; 317 sd.sd_DI = DI_2840; 318 sc = ahc->seep_config; 319 320 if (bootverbose) 321 printf("%s: Reading SEEPROM...", ahc_name(ahc)); 322 have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc, 323 /*start_addr*/0, sizeof(*sc)/2); 324 325 if (have_seeprom) { 326 if (ahc_verify_cksum(sc) == 0) { 327 if(bootverbose) 328 printf ("checksum error\n"); 329 have_seeprom = 0; 330 } else if (bootverbose) { 331 printf("done.\n"); 332 } 333 } 334 335 if (!have_seeprom) { 336 if (bootverbose) 337 printf("%s: No SEEPROM available\n", ahc_name(ahc)); 338 ahc->flags |= AHC_USEDEFAULTS; 339 } else { 340 /* 341 * Put the data we've collected down into SRAM 342 * where ahc_init will find it. 343 */ 344 int i; 345 int max_targ; 346 uint16_t discenable; 347 348 max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8; 349 discenable = 0; 350 for (i = 0; i < max_targ; i++){ 351 uint8_t target_settings; 352 353 target_settings = (sc->device_flags[i] & CFXFER) << 4; 354 if (sc->device_flags[i] & CFSYNCH) 355 target_settings |= SOFS; 356 if (sc->device_flags[i] & CFWIDEB) 357 target_settings |= WIDEXFER; 358 if (sc->device_flags[i] & CFDISC) 359 discenable |= (0x01 << i); 360 ahc_outb(ahc, TARG_SCSIRATE + i, target_settings); 361 } 362 ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff)); 363 ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff)); 364 365 ahc->our_id = sc->brtime_id & CFSCSIID; 366 367 scsi_conf = (ahc->our_id & 0x7); 368 if (sc->adapter_control & CFSPARITY) 369 scsi_conf |= ENSPCHK; 370 if (sc->adapter_control & CFRESETB) 371 scsi_conf |= RESET_SCSI; 372 373 if (sc->bios_control & CF284XEXTEND) 374 ahc->flags |= AHC_EXTENDED_TRANS_A; 375 /* Set SCSICONF info */ 376 ahc_outb(ahc, SCSICONF, scsi_conf); 377 378 if (sc->adapter_control & CF284XSTERM) 379 ahc->flags |= AHC_TERM_ENB_A; 380 } 381 return (have_seeprom); 382 } 383 384 static int 385 ahc_aic7770_VL_setup(struct ahc_softc *ahc) 386 { 387 int error; 388 389 error = ahc_aic7770_setup(ahc); 390 ahc->chip |= AHC_VL; 391 return (error); 392 } 393 394 static int 395 ahc_aic7770_EISA_setup(struct ahc_softc *ahc) 396 { 397 int error; 398 399 error = ahc_aic7770_setup(ahc); 400 ahc->chip |= AHC_EISA; 401 return (error); 402 } 403 404 static int 405 ahc_aic7770_setup(struct ahc_softc *ahc) 406 { 407 ahc->channel = 'A'; 408 ahc->channel_b = 'B'; 409 ahc->chip = AHC_AIC7770; 410 ahc->features = AHC_AIC7770_FE; 411 ahc->bugs |= AHC_TMODE_WIDEODD_BUG; 412 ahc->flags |= AHC_PAGESCBS; 413 ahc->instruction_ram_size = 448; 414 return (0); 415 }
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