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 * 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: releng/6.2/sys/dev/aic7xxx/aic7770.c 139749 2005-01-06 01:43:34Z imp $"); 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_list_lock(&l); 258 /* 259 * Link this softc in with all other ahc instances. 260 */ 261 ahc_softc_insert(ahc); 262 263 /* 264 * Enable the board's BUS drivers 265 */ 266 ahc_outb(ahc, BCTL, ENABLE); 267 268 ahc_list_unlock(&l); 269 270 return (0); 271 } 272 273 static int 274 aic7770_chip_init(struct ahc_softc *ahc) 275 { 276 ahc_outb(ahc, BUSSPD, ahc->bus_softc.aic7770_softc.busspd); 277 ahc_outb(ahc, BUSTIME, ahc->bus_softc.aic7770_softc.bustime); 278 ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS); 279 ahc_outb(ahc, BCTL, ENABLE); 280 return (ahc_chip_init(ahc)); 281 } 282 283 static int 284 aic7770_suspend(struct ahc_softc *ahc) 285 { 286 return (ahc_suspend(ahc)); 287 } 288 289 static int 290 aic7770_resume(struct ahc_softc *ahc) 291 { 292 return (ahc_resume(ahc)); 293 } 294 295 /* 296 * Read the 284x SEEPROM. 297 */ 298 static int 299 aha2840_load_seeprom(struct ahc_softc *ahc) 300 { 301 struct seeprom_descriptor sd; 302 struct seeprom_config *sc; 303 int have_seeprom; 304 uint8_t scsi_conf; 305 306 sd.sd_ahc = ahc; 307 sd.sd_control_offset = SEECTL_2840; 308 sd.sd_status_offset = STATUS_2840; 309 sd.sd_dataout_offset = STATUS_2840; 310 sd.sd_chip = C46; 311 sd.sd_MS = 0; 312 sd.sd_RDY = EEPROM_TF; 313 sd.sd_CS = CS_2840; 314 sd.sd_CK = CK_2840; 315 sd.sd_DO = DO_2840; 316 sd.sd_DI = DI_2840; 317 sc = ahc->seep_config; 318 319 if (bootverbose) 320 printf("%s: Reading SEEPROM...", ahc_name(ahc)); 321 have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc, 322 /*start_addr*/0, sizeof(*sc)/2); 323 324 if (have_seeprom) { 325 326 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 }
Cache object: d139fe856d4360a715a11e6afb48b0c1
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