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 #include "aic7xxx_osm.h" 46 #include "aic7xxx_inline.h" 47 #include "aic7xxx_93cx6.h" 48 49 #define ID_AIC7770 0x04907770 50 #define ID_AHA_274x 0x04907771 51 #define ID_AHA_284xB 0x04907756 /* BIOS enabled */ 52 #define ID_AHA_284x 0x04907757 /* BIOS disabled*/ 53 #define ID_OLV_274x 0x04907782 /* Olivetti OEM */ 54 #define ID_OLV_274xD 0x04907783 /* Olivetti OEM (Differential) */ 55 56 static int aic7770_chip_init(struct ahc_softc *ahc); 57 static int aha2840_load_seeprom(struct ahc_softc *ahc); 58 static ahc_device_setup_t ahc_aic7770_VL_setup; 59 static ahc_device_setup_t ahc_aic7770_EISA_setup; 60 static ahc_device_setup_t ahc_aic7770_setup; 61 62 struct aic7770_identity aic7770_ident_table[] = 63 { 64 { 65 ID_AHA_274x, 66 0xFFFFFFFF, 67 "Adaptec 274X SCSI adapter", 68 ahc_aic7770_EISA_setup 69 }, 70 { 71 ID_AHA_284xB, 72 0xFFFFFFFE, 73 "Adaptec 284X SCSI adapter", 74 ahc_aic7770_VL_setup 75 }, 76 { 77 ID_AHA_284x, 78 0xFFFFFFFE, 79 "Adaptec 284X SCSI adapter (BIOS Disabled)", 80 ahc_aic7770_VL_setup 81 }, 82 { 83 ID_OLV_274x, 84 0xFFFFFFFF, 85 "Adaptec (Olivetti OEM) 274X SCSI adapter", 86 ahc_aic7770_EISA_setup 87 }, 88 { 89 ID_OLV_274xD, 90 0xFFFFFFFF, 91 "Adaptec (Olivetti OEM) 274X Differential SCSI adapter", 92 ahc_aic7770_EISA_setup 93 }, 94 /* Generic chip probes for devices we don't know 'exactly' */ 95 { 96 ID_AIC7770, 97 0xFFFFFFFF, 98 "Adaptec aic7770 SCSI adapter", 99 ahc_aic7770_EISA_setup 100 } 101 }; 102 const int ahc_num_aic7770_devs = ARRAY_SIZE(aic7770_ident_table); 103 104 struct aic7770_identity * 105 aic7770_find_device(uint32_t id) 106 { 107 struct aic7770_identity *entry; 108 int i; 109 110 for (i = 0; i < ahc_num_aic7770_devs; i++) { 111 entry = &aic7770_ident_table[i]; 112 if (entry->full_id == (id & entry->id_mask)) 113 return (entry); 114 } 115 return (NULL); 116 } 117 118 int 119 aic7770_config(struct ahc_softc *ahc, struct aic7770_identity *entry, u_int io) 120 { 121 int error; 122 int have_seeprom; 123 u_int hostconf; 124 u_int irq; 125 u_int intdef; 126 127 error = entry->setup(ahc); 128 have_seeprom = 0; 129 if (error != 0) 130 return (error); 131 132 error = aic7770_map_registers(ahc, io); 133 if (error != 0) 134 return (error); 135 136 /* 137 * Before we continue probing the card, ensure that 138 * its interrupts are *disabled*. We don't want 139 * a misstep to hang the machine in an interrupt 140 * storm. 141 */ 142 ahc_intr_enable(ahc, FALSE); 143 144 ahc->description = entry->name; 145 error = ahc_softc_init(ahc); 146 if (error != 0) 147 return (error); 148 149 ahc->bus_chip_init = aic7770_chip_init; 150 151 error = ahc_reset(ahc, /*reinit*/FALSE); 152 if (error != 0) 153 return (error); 154 155 /* Make sure we have a valid interrupt vector */ 156 intdef = ahc_inb(ahc, INTDEF); 157 irq = intdef & VECTOR; 158 switch (irq) { 159 case 9: 160 case 10: 161 case 11: 162 case 12: 163 case 14: 164 case 15: 165 break; 166 default: 167 printk("aic7770_config: invalid irq setting %d\n", intdef); 168 return (ENXIO); 169 } 170 171 if ((intdef & EDGE_TRIG) != 0) 172 ahc->flags |= AHC_EDGE_INTERRUPT; 173 174 switch (ahc->chip & (AHC_EISA|AHC_VL)) { 175 case AHC_EISA: 176 { 177 u_int biosctrl; 178 u_int scsiconf; 179 u_int scsiconf1; 180 181 biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL); 182 scsiconf = ahc_inb(ahc, SCSICONF); 183 scsiconf1 = ahc_inb(ahc, SCSICONF + 1); 184 185 /* Get the primary channel information */ 186 if ((biosctrl & CHANNEL_B_PRIMARY) != 0) 187 ahc->flags |= 1; 188 189 if ((biosctrl & BIOSMODE) == BIOSDISABLED) { 190 ahc->flags |= AHC_USEDEFAULTS; 191 } else { 192 if ((ahc->features & AHC_WIDE) != 0) { 193 ahc->our_id = scsiconf1 & HWSCSIID; 194 if (scsiconf & TERM_ENB) 195 ahc->flags |= AHC_TERM_ENB_A; 196 } else { 197 ahc->our_id = scsiconf & HSCSIID; 198 ahc->our_id_b = scsiconf1 & HSCSIID; 199 if (scsiconf & TERM_ENB) 200 ahc->flags |= AHC_TERM_ENB_A; 201 if (scsiconf1 & TERM_ENB) 202 ahc->flags |= AHC_TERM_ENB_B; 203 } 204 } 205 if ((ahc_inb(ahc, HA_274_BIOSGLOBAL) & HA_274_EXTENDED_TRANS)) 206 ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B; 207 break; 208 } 209 case AHC_VL: 210 { 211 have_seeprom = aha2840_load_seeprom(ahc); 212 break; 213 } 214 default: 215 break; 216 } 217 if (have_seeprom == 0) { 218 kfree(ahc->seep_config); 219 ahc->seep_config = NULL; 220 } 221 222 /* 223 * Ensure autoflush is enabled 224 */ 225 ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS); 226 227 /* Setup the FIFO threshold and the bus off time */ 228 hostconf = ahc_inb(ahc, HOSTCONF); 229 ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH); 230 ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF); 231 232 ahc->bus_softc.aic7770_softc.busspd = hostconf & DFTHRSH; 233 ahc->bus_softc.aic7770_softc.bustime = (hostconf << 2) & BOFF; 234 235 /* 236 * Generic aic7xxx initialization. 237 */ 238 error = ahc_init(ahc); 239 if (error != 0) 240 return (error); 241 242 error = aic7770_map_int(ahc, irq); 243 if (error != 0) 244 return (error); 245 246 ahc->init_level++; 247 248 /* 249 * Enable the board's BUS drivers 250 */ 251 ahc_outb(ahc, BCTL, ENABLE); 252 return (0); 253 } 254 255 static int 256 aic7770_chip_init(struct ahc_softc *ahc) 257 { 258 ahc_outb(ahc, BUSSPD, ahc->bus_softc.aic7770_softc.busspd); 259 ahc_outb(ahc, BUSTIME, ahc->bus_softc.aic7770_softc.bustime); 260 ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS); 261 ahc_outb(ahc, BCTL, ENABLE); 262 return (ahc_chip_init(ahc)); 263 } 264 265 /* 266 * Read the 284x SEEPROM. 267 */ 268 static int 269 aha2840_load_seeprom(struct ahc_softc *ahc) 270 { 271 struct seeprom_descriptor sd; 272 struct seeprom_config *sc; 273 int have_seeprom; 274 uint8_t scsi_conf; 275 276 sd.sd_ahc = ahc; 277 sd.sd_control_offset = SEECTL_2840; 278 sd.sd_status_offset = STATUS_2840; 279 sd.sd_dataout_offset = STATUS_2840; 280 sd.sd_chip = C46; 281 sd.sd_MS = 0; 282 sd.sd_RDY = EEPROM_TF; 283 sd.sd_CS = CS_2840; 284 sd.sd_CK = CK_2840; 285 sd.sd_DO = DO_2840; 286 sd.sd_DI = DI_2840; 287 sc = ahc->seep_config; 288 289 if (bootverbose) 290 printk("%s: Reading SEEPROM...", ahc_name(ahc)); 291 have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc, 292 /*start_addr*/0, sizeof(*sc)/2); 293 294 if (have_seeprom) { 295 296 if (ahc_verify_cksum(sc) == 0) { 297 if(bootverbose) 298 printk ("checksum error\n"); 299 have_seeprom = 0; 300 } else if (bootverbose) { 301 printk("done.\n"); 302 } 303 } 304 305 if (!have_seeprom) { 306 if (bootverbose) 307 printk("%s: No SEEPROM available\n", ahc_name(ahc)); 308 ahc->flags |= AHC_USEDEFAULTS; 309 } else { 310 /* 311 * Put the data we've collected down into SRAM 312 * where ahc_init will find it. 313 */ 314 int i; 315 int max_targ; 316 uint16_t discenable; 317 318 max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8; 319 discenable = 0; 320 for (i = 0; i < max_targ; i++){ 321 uint8_t target_settings; 322 323 target_settings = (sc->device_flags[i] & CFXFER) << 4; 324 if (sc->device_flags[i] & CFSYNCH) 325 target_settings |= SOFS; 326 if (sc->device_flags[i] & CFWIDEB) 327 target_settings |= WIDEXFER; 328 if (sc->device_flags[i] & CFDISC) 329 discenable |= (0x01 << i); 330 ahc_outb(ahc, TARG_SCSIRATE + i, target_settings); 331 } 332 ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff)); 333 ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff)); 334 335 ahc->our_id = sc->brtime_id & CFSCSIID; 336 337 scsi_conf = (ahc->our_id & 0x7); 338 if (sc->adapter_control & CFSPARITY) 339 scsi_conf |= ENSPCHK; 340 if (sc->adapter_control & CFRESETB) 341 scsi_conf |= RESET_SCSI; 342 343 if (sc->bios_control & CF284XEXTEND) 344 ahc->flags |= AHC_EXTENDED_TRANS_A; 345 /* Set SCSICONF info */ 346 ahc_outb(ahc, SCSICONF, scsi_conf); 347 348 if (sc->adapter_control & CF284XSTERM) 349 ahc->flags |= AHC_TERM_ENB_A; 350 } 351 return (have_seeprom); 352 } 353 354 static int 355 ahc_aic7770_VL_setup(struct ahc_softc *ahc) 356 { 357 int error; 358 359 error = ahc_aic7770_setup(ahc); 360 ahc->chip |= AHC_VL; 361 return (error); 362 } 363 364 static int 365 ahc_aic7770_EISA_setup(struct ahc_softc *ahc) 366 { 367 int error; 368 369 error = ahc_aic7770_setup(ahc); 370 ahc->chip |= AHC_EISA; 371 return (error); 372 } 373 374 static int 375 ahc_aic7770_setup(struct ahc_softc *ahc) 376 { 377 ahc->channel = 'A'; 378 ahc->channel_b = 'B'; 379 ahc->chip = AHC_AIC7770; 380 ahc->features = AHC_AIC7770_FE; 381 ahc->bugs |= AHC_TMODE_WIDEODD_BUG; 382 ahc->flags |= AHC_PAGESCBS; 383 ahc->instruction_ram_size = 448; 384 return (0); 385 } 386