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#26 $ 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 60 static int aha2840_load_seeprom(struct ahc_softc *ahc); 61 static ahc_device_setup_t ahc_aic7770_VL_setup; 62 static ahc_device_setup_t ahc_aic7770_EISA_setup;; 63 static ahc_device_setup_t ahc_aic7770_setup; 64 65 66 struct aic7770_identity aic7770_ident_table [] = 67 { 68 { 69 ID_AHA_274x, 70 0xFFFFFFFF, 71 "Adaptec 274X SCSI adapter", 72 ahc_aic7770_EISA_setup 73 }, 74 { 75 ID_AHA_284xB, 76 0xFFFFFFFE, 77 "Adaptec 284X SCSI adapter", 78 ahc_aic7770_VL_setup 79 }, 80 /* Generic chip probes for devices we don't know 'exactly' */ 81 { 82 ID_AIC7770, 83 0xFFFFFFFF, 84 "Adaptec aic7770 SCSI adapter", 85 ahc_aic7770_EISA_setup 86 } 87 }; 88 const int ahc_num_aic7770_devs = NUM_ELEMENTS(aic7770_ident_table); 89 90 struct aic7770_identity * 91 aic7770_find_device(uint32_t id) 92 { 93 struct aic7770_identity *entry; 94 int i; 95 96 for (i = 0; i < ahc_num_aic7770_devs; i++) { 97 entry = &aic7770_ident_table[i]; 98 if (entry->full_id == (id & entry->id_mask)) 99 return (entry); 100 } 101 return (NULL); 102 } 103 104 int 105 aic7770_config(struct ahc_softc *ahc, struct aic7770_identity *entry, u_int io) 106 { 107 u_long l; 108 int error; 109 int have_seeprom; 110 u_int hostconf; 111 u_int irq; 112 u_int intdef; 113 114 error = entry->setup(ahc); 115 have_seeprom = 0; 116 if (error != 0) 117 return (error); 118 119 error = aic7770_map_registers(ahc, io); 120 if (error != 0) 121 return (error); 122 123 /* 124 * Before we continue probing the card, ensure that 125 * its interrupts are *disabled*. We don't want 126 * a misstep to hang the machine in an interrupt 127 * storm. 128 */ 129 ahc_intr_enable(ahc, FALSE); 130 131 ahc->description = entry->name; 132 error = ahc_softc_init(ahc); 133 134 error = ahc_reset(ahc); 135 if (error != 0) 136 return (error); 137 138 /* Make sure we have a valid interrupt vector */ 139 intdef = ahc_inb(ahc, INTDEF); 140 irq = intdef & VECTOR; 141 switch (irq) { 142 case 9: 143 case 10: 144 case 11: 145 case 12: 146 case 14: 147 case 15: 148 break; 149 default: 150 printf("aic7770_config: illegal irq setting %d\n", intdef); 151 return (ENXIO); 152 } 153 154 if ((intdef & EDGE_TRIG) != 0) 155 ahc->flags |= AHC_EDGE_INTERRUPT; 156 157 switch (ahc->chip & (AHC_EISA|AHC_VL)) { 158 case AHC_EISA: 159 { 160 u_int biosctrl; 161 u_int scsiconf; 162 u_int scsiconf1; 163 164 biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL); 165 scsiconf = ahc_inb(ahc, SCSICONF); 166 scsiconf1 = ahc_inb(ahc, SCSICONF + 1); 167 168 /* Get the primary channel information */ 169 if ((biosctrl & CHANNEL_B_PRIMARY) != 0) 170 ahc->flags |= 1; 171 172 if ((biosctrl & BIOSMODE) == BIOSDISABLED) { 173 ahc->flags |= AHC_USEDEFAULTS; 174 } else { 175 if ((ahc->features & AHC_WIDE) != 0) { 176 ahc->our_id = scsiconf1 & HWSCSIID; 177 if (scsiconf & TERM_ENB) 178 ahc->flags |= AHC_TERM_ENB_A; 179 } else { 180 ahc->our_id = scsiconf & HSCSIID; 181 ahc->our_id_b = scsiconf1 & HSCSIID; 182 if (scsiconf & TERM_ENB) 183 ahc->flags |= AHC_TERM_ENB_A; 184 if (scsiconf1 & TERM_ENB) 185 ahc->flags |= AHC_TERM_ENB_B; 186 } 187 } 188 if ((ahc_inb(ahc, HA_274_BIOSGLOBAL) & HA_274_EXTENDED_TRANS)) 189 ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B; 190 break; 191 } 192 case AHC_VL: 193 { 194 have_seeprom = aha2840_load_seeprom(ahc); 195 break; 196 } 197 default: 198 break; 199 } 200 if (have_seeprom == 0) { 201 free(ahc->seep_config, M_DEVBUF); 202 ahc->seep_config = NULL; 203 } 204 205 /* 206 * Ensure autoflush is enabled 207 */ 208 ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS); 209 210 /* Setup the FIFO threshold and the bus off time */ 211 hostconf = ahc_inb(ahc, HOSTCONF); 212 ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH); 213 ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF); 214 215 /* 216 * Generic aic7xxx initialization. 217 */ 218 error = ahc_init(ahc); 219 if (error != 0) 220 return (error); 221 222 error = aic7770_map_int(ahc, irq); 223 if (error != 0) 224 return (error); 225 226 ahc_list_lock(&l); 227 /* 228 * Link this softc in with all other ahc instances. 229 */ 230 ahc_softc_insert(ahc); 231 232 /* 233 * Enable the board's BUS drivers 234 */ 235 ahc_outb(ahc, BCTL, ENABLE); 236 237 ahc_list_unlock(&l); 238 239 return (0); 240 } 241 242 /* 243 * Read the 284x SEEPROM. 244 */ 245 static int 246 aha2840_load_seeprom(struct ahc_softc *ahc) 247 { 248 struct seeprom_descriptor sd; 249 struct seeprom_config *sc; 250 int have_seeprom; 251 uint8_t scsi_conf; 252 253 sd.sd_ahc = ahc; 254 sd.sd_control_offset = SEECTL_2840; 255 sd.sd_status_offset = STATUS_2840; 256 sd.sd_dataout_offset = STATUS_2840; 257 sd.sd_chip = C46; 258 sd.sd_MS = 0; 259 sd.sd_RDY = EEPROM_TF; 260 sd.sd_CS = CS_2840; 261 sd.sd_CK = CK_2840; 262 sd.sd_DO = DO_2840; 263 sd.sd_DI = DI_2840; 264 sc = ahc->seep_config; 265 266 if (bootverbose) 267 printf("%s: Reading SEEPROM...", ahc_name(ahc)); 268 have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc, 269 /*start_addr*/0, sizeof(sc)/2); 270 271 if (have_seeprom) { 272 273 if (ahc_verify_cksum(sc) == 0) { 274 if(bootverbose) 275 printf ("checksum error\n"); 276 have_seeprom = 0; 277 } else if (bootverbose) { 278 printf("done.\n"); 279 } 280 } 281 282 if (!have_seeprom) { 283 if (bootverbose) 284 printf("%s: No SEEPROM available\n", ahc_name(ahc)); 285 ahc->flags |= AHC_USEDEFAULTS; 286 } else { 287 /* 288 * Put the data we've collected down into SRAM 289 * where ahc_init will find it. 290 */ 291 int i; 292 int max_targ; 293 uint16_t discenable; 294 295 max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8; 296 discenable = 0; 297 for (i = 0; i < max_targ; i++){ 298 uint8_t target_settings; 299 300 target_settings = (sc->device_flags[i] & CFXFER) << 4; 301 if (sc->device_flags[i] & CFSYNCH) 302 target_settings |= SOFS; 303 if (sc->device_flags[i] & CFWIDEB) 304 target_settings |= WIDEXFER; 305 if (sc->device_flags[i] & CFDISC) 306 discenable |= (0x01 << i); 307 ahc_outb(ahc, TARG_SCSIRATE + i, target_settings); 308 } 309 ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff)); 310 ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff)); 311 312 ahc->our_id = sc->brtime_id & CFSCSIID; 313 314 scsi_conf = (ahc->our_id & 0x7); 315 if (sc->adapter_control & CFSPARITY) 316 scsi_conf |= ENSPCHK; 317 if (sc->adapter_control & CFRESETB) 318 scsi_conf |= RESET_SCSI; 319 320 if (sc->bios_control & CF284XEXTEND) 321 ahc->flags |= AHC_EXTENDED_TRANS_A; 322 /* Set SCSICONF info */ 323 ahc_outb(ahc, SCSICONF, scsi_conf); 324 325 if (sc->adapter_control & CF284XSTERM) 326 ahc->flags |= AHC_TERM_ENB_A; 327 } 328 return (have_seeprom); 329 } 330 331 static int 332 ahc_aic7770_VL_setup(struct ahc_softc *ahc) 333 { 334 int error; 335 336 error = ahc_aic7770_setup(ahc); 337 ahc->chip |= AHC_VL; 338 return (error); 339 } 340 341 static int 342 ahc_aic7770_EISA_setup(struct ahc_softc *ahc) 343 { 344 int error; 345 346 error = ahc_aic7770_setup(ahc); 347 ahc->chip |= AHC_EISA; 348 return (error); 349 } 350 351 static int 352 ahc_aic7770_setup(struct ahc_softc *ahc) 353 { 354 ahc->channel = 'A'; 355 ahc->channel_b = 'B'; 356 ahc->chip = AHC_AIC7770; 357 ahc->features = AHC_AIC7770_FE; 358 ahc->bugs |= AHC_TMODE_WIDEODD_BUG; 359 ahc->flags |= AHC_PAGESCBS; 360 return (0); 361 } 362