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 62static int aic7770_chip_init(struct ahc_softc *ahc); 63static int aha2840_load_seeprom(struct ahc_softc *ahc); 64static ahc_device_setup_t ahc_aic7770_VL_setup; 65static ahc_device_setup_t ahc_aic7770_EISA_setup; 66static ahc_device_setup_t ahc_aic7770_setup; 67 68struct aic7770_identity aic7770_ident_table[] = 69{ 70 { 71 ID_AHA_274x, 72 0xFFFFFFFF, 73 "Adaptec 274X SCSI adapter", 74 ahc_aic7770_EISA_setup 75 }, 76 { 77 ID_AHA_284xB, 78 0xFFFFFFFE, 79 "Adaptec 284X SCSI adapter", 80 ahc_aic7770_VL_setup 81 }, 82 { 83 ID_AHA_284x, 84 0xFFFFFFFE, 85 "Adaptec 284X SCSI adapter (BIOS Disabled)", 86 ahc_aic7770_VL_setup 87 }, 88 { 89 ID_OLV_274x, 90 0xFFFFFFFF, 91 "Adaptec (Olivetti OEM) 274X SCSI adapter", 92 ahc_aic7770_EISA_setup 93 }, 94 { 95 ID_OLV_274xD, 96 0xFFFFFFFF, 97 "Adaptec (Olivetti OEM) 274X Differential SCSI adapter", 98 ahc_aic7770_EISA_setup 99 }, 100 /* Generic chip probes for devices we don't know 'exactly' */ 101 { 102 ID_AIC7770, 103 0xFFFFFFFF, 104 "Adaptec aic7770 SCSI adapter", 105 ahc_aic7770_EISA_setup 106 } 107}; 108const int ahc_num_aic7770_devs = ARRAY_SIZE(aic7770_ident_table); 109 110struct aic7770_identity * 111aic7770_find_device(uint32_t id) 112{ 113 struct aic7770_identity *entry; 114 int i; 115 116 for (i = 0; i < ahc_num_aic7770_devs; i++) { 117 entry = &aic7770_ident_table[i]; 118 if (entry->full_id == (id & entry->id_mask)) 119 return (entry); 120 } 121 return (NULL); 122} 123 124int 125aic7770_config(struct ahc_softc *ahc, struct aic7770_identity *entry, u_int io) 126{ 127 int error; 128 int have_seeprom; 129 u_int hostconf; 130 u_int irq; 131 u_int intdef; 132 133 error = entry->setup(ahc); 134 have_seeprom = 0; 135 if (error != 0) 136 return (error); 137 138 error = aic7770_map_registers(ahc, io); 139 if (error != 0) 140 return (error); 141 142 /* 143 * Before we continue probing the card, ensure that 144 * its interrupts are *disabled*. We don't want 145 * a misstep to hang the machine in an interrupt 146 * storm. 147 */ 148 ahc_intr_enable(ahc, FALSE); 149 150 ahc->description = entry->name; 151 error = ahc_softc_init(ahc); 152 if (error != 0) 153 return (error); 154 155 ahc->bus_chip_init = aic7770_chip_init; 156 157 error = ahc_reset(ahc, /*reinit*/FALSE); 158 if (error != 0) 159 return (error); 160 161 /* Make sure we have a valid interrupt vector */ 162 intdef = ahc_inb(ahc, INTDEF); 163 irq = intdef & VECTOR; 164 switch (irq) { 165 case 9: 166 case 10: 167 case 11: 168 case 12: 169 case 14: 170 case 15: 171 break; 172 default: 173 printk("aic7770_config: invalid irq setting %d\n", intdef); 174 return (ENXIO); 175 } 176 177 if ((intdef & EDGE_TRIG) != 0) 178 ahc->flags |= AHC_EDGE_INTERRUPT; 179 180 switch (ahc->chip & (AHC_EISA|AHC_VL)) { 181 case AHC_EISA: 182 { 183 u_int biosctrl; 184 u_int scsiconf; 185 u_int scsiconf1; 186 187 biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL); 188 scsiconf = ahc_inb(ahc, SCSICONF); 189 scsiconf1 = ahc_inb(ahc, SCSICONF + 1); 190 191 /* Get the primary channel information */ 192 if ((biosctrl & CHANNEL_B_PRIMARY) != 0) 193 ahc->flags |= 1; 194 195 if ((biosctrl & BIOSMODE) == BIOSDISABLED) { 196 ahc->flags |= AHC_USEDEFAULTS; 197 } else { 198 if ((ahc->features & AHC_WIDE) != 0) { 199 ahc->our_id = scsiconf1 & HWSCSIID; 200 if (scsiconf & TERM_ENB) 201 ahc->flags |= AHC_TERM_ENB_A; 202 } else { 203 ahc->our_id = scsiconf & HSCSIID; 204 ahc->our_id_b = scsiconf1 & HSCSIID; 205 if (scsiconf & TERM_ENB) 206 ahc->flags |= AHC_TERM_ENB_A; 207 if (scsiconf1 & TERM_ENB) 208 ahc->flags |= AHC_TERM_ENB_B; 209 } 210 } 211 if ((ahc_inb(ahc, HA_274_BIOSGLOBAL) & HA_274_EXTENDED_TRANS)) 212 ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B; 213 break; 214 } 215 case AHC_VL: 216 { 217 have_seeprom = aha2840_load_seeprom(ahc); 218 break; 219 } 220 default: 221 break; 222 } 223 if (have_seeprom == 0) { 224 kfree(ahc->seep_config); 225 ahc->seep_config = NULL; 226 } 227 228 /* 229 * Ensure autoflush is enabled 230 */ 231 ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS); 232 233 /* Setup the FIFO threshold and the bus off time */ 234 hostconf = ahc_inb(ahc, HOSTCONF); 235 ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH); 236 ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF); 237 238 ahc->bus_softc.aic7770_softc.busspd = hostconf & DFTHRSH; 239 ahc->bus_softc.aic7770_softc.bustime = (hostconf << 2) & BOFF; 240 241 /* 242 * Generic aic7xxx initialization. 243 */ 244 error = ahc_init(ahc); 245 if (error != 0) 246 return (error); 247 248 error = aic7770_map_int(ahc, irq); 249 if (error != 0) 250 return (error); 251 252 ahc->init_level++; 253 254 /* 255 * Enable the board's BUS drivers 256 */ 257 ahc_outb(ahc, BCTL, ENABLE); 258 return (0); 259} 260 261static int 262aic7770_chip_init(struct ahc_softc *ahc) 263{ 264 ahc_outb(ahc, BUSSPD, ahc->bus_softc.aic7770_softc.busspd); 265 ahc_outb(ahc, BUSTIME, ahc->bus_softc.aic7770_softc.bustime); 266 ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS); 267 ahc_outb(ahc, BCTL, ENABLE); 268 return (ahc_chip_init(ahc)); 269} 270 271/* 272 * Read the 284x SEEPROM. 273 */ 274static int 275aha2840_load_seeprom(struct ahc_softc *ahc) 276{ 277 struct seeprom_descriptor sd; 278 struct seeprom_config *sc; 279 int have_seeprom; 280 uint8_t scsi_conf; 281 282 sd.sd_ahc = ahc; 283 sd.sd_control_offset = SEECTL_2840; 284 sd.sd_status_offset = STATUS_2840; 285 sd.sd_dataout_offset = STATUS_2840; 286 sd.sd_chip = C46; 287 sd.sd_MS = 0; 288 sd.sd_RDY = EEPROM_TF; 289 sd.sd_CS = CS_2840; 290 sd.sd_CK = CK_2840; 291 sd.sd_DO = DO_2840; 292 sd.sd_DI = DI_2840; 293 sc = ahc->seep_config; 294 295 if (bootverbose) 296 printk("%s: Reading SEEPROM...", ahc_name(ahc)); 297 have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc, 298 /*start_addr*/0, sizeof(*sc)/2); 299 300 if (have_seeprom) { 301 302 if (ahc_verify_cksum(sc) == 0) { 303 if(bootverbose) 304 printk ("checksum error\n"); 305 have_seeprom = 0; 306 } else if (bootverbose) { 307 printk("done.\n"); 308 } 309 } 310 311 if (!have_seeprom) { 312 if (bootverbose) 313 printk("%s: No SEEPROM available\n", ahc_name(ahc)); 314 ahc->flags |= AHC_USEDEFAULTS; 315 } else { 316 /* 317 * Put the data we've collected down into SRAM 318 * where ahc_init will find it. 319 */ 320 int i; 321 int max_targ; 322 uint16_t discenable; 323 324 max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8; 325 discenable = 0; 326 for (i = 0; i < max_targ; i++){ 327 uint8_t target_settings; 328 329 target_settings = (sc->device_flags[i] & CFXFER) << 4; 330 if (sc->device_flags[i] & CFSYNCH) 331 target_settings |= SOFS; 332 if (sc->device_flags[i] & CFWIDEB) 333 target_settings |= WIDEXFER; 334 if (sc->device_flags[i] & CFDISC) 335 discenable |= (0x01 << i); 336 ahc_outb(ahc, TARG_SCSIRATE + i, target_settings); 337 } 338 ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff)); 339 ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff)); 340 341 ahc->our_id = sc->brtime_id & CFSCSIID; 342 343 scsi_conf = (ahc->our_id & 0x7); 344 if (sc->adapter_control & CFSPARITY) 345 scsi_conf |= ENSPCHK; 346 if (sc->adapter_control & CFRESETB) 347 scsi_conf |= RESET_SCSI; 348 349 if (sc->bios_control & CF284XEXTEND) 350 ahc->flags |= AHC_EXTENDED_TRANS_A; 351 /* Set SCSICONF info */ 352 ahc_outb(ahc, SCSICONF, scsi_conf); 353 354 if (sc->adapter_control & CF284XSTERM) 355 ahc->flags |= AHC_TERM_ENB_A; 356 } 357 return (have_seeprom); 358} 359 360static int 361ahc_aic7770_VL_setup(struct ahc_softc *ahc) 362{ 363 int error; 364 365 error = ahc_aic7770_setup(ahc); 366 ahc->chip |= AHC_VL; 367 return (error); 368} 369 370static int 371ahc_aic7770_EISA_setup(struct ahc_softc *ahc) 372{ 373 int error; 374 375 error = ahc_aic7770_setup(ahc); 376 ahc->chip |= AHC_EISA; 377 return (error); 378} 379 380static int 381ahc_aic7770_setup(struct ahc_softc *ahc) 382{ 383 ahc->channel = 'A'; 384 ahc->channel_b = 'B'; 385 ahc->chip = AHC_AIC7770; 386 ahc->features = AHC_AIC7770_FE; 387 ahc->bugs |= AHC_TMODE_WIDEODD_BUG; 388 ahc->flags |= AHC_PAGESCBS; 389 ahc->instruction_ram_size = 448; 390 return (0); 391} 392