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 immediately at the beginning of the file, without modification, 13 * this list of conditions, and the following disclaimer. 14 * 2. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * Alternatively, this software may be distributed under the terms of the 18 * GNU Public License ("GPL"). 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * $Id: //depot/src/aic7xxx/aic7770.c#12 $ 33 * 34 * $FreeBSD$ 35 */ 36 37 #include <dev/aic7xxx/aic7xxx_freebsd.h> 38 #include <dev/aic7xxx/aic7xxx_inline.h> 39 #include <dev/aic7xxx/aic7xxx_93cx6.h> 40 41 #define ID_AIC7770 0x04907770 42 #define ID_AHA_274x 0x04907771 43 #define ID_AHA_284xB 0x04907756 /* BIOS enabled */ 44 #define ID_AHA_284x 0x04907757 /* BIOS disabled*/ 45 46 static void aha2840_load_seeprom(struct ahc_softc *ahc); 47 static ahc_device_setup_t ahc_aic7770_VL_setup; 48 static ahc_device_setup_t ahc_aic7770_EISA_setup;; 49 static ahc_device_setup_t ahc_aic7770_setup; 50 51 52 struct aic7770_identity aic7770_ident_table [] = 53 { 54 { 55 ID_AHA_274x, 56 0xFFFFFFFF, 57 "Adaptec 274X SCSI adapter", 58 ahc_aic7770_EISA_setup 59 }, 60 { 61 ID_AHA_284xB, 62 0xFFFFFFFE, 63 "Adaptec 284X SCSI adapter", 64 ahc_aic7770_VL_setup 65 }, 66 /* Generic chip probes for devices we don't know 'exactly' */ 67 { 68 ID_AIC7770, 69 0xFFFFFFFF, 70 "Adaptec aic7770 SCSI adapter", 71 ahc_aic7770_EISA_setup 72 } 73 }; 74 const int ahc_num_aic7770_devs = NUM_ELEMENTS(aic7770_ident_table); 75 76 struct aic7770_identity * 77 aic7770_find_device(uint32_t id) 78 { 79 struct aic7770_identity *entry; 80 int i; 81 82 for (i = 0; i < ahc_num_aic7770_devs; i++) { 83 entry = &aic7770_ident_table[i]; 84 if (entry->full_id == (id & entry->id_mask)) 85 return (entry); 86 } 87 return (NULL); 88 } 89 90 int 91 aic7770_config(struct ahc_softc *ahc, struct aic7770_identity *entry) 92 { 93 int error; 94 u_int hostconf; 95 u_int irq; 96 u_int intdef; 97 98 error = entry->setup(ahc); 99 if (error != 0) 100 return (error); 101 102 error = aic7770_map_registers(ahc); 103 if (error != 0) 104 return (error); 105 106 ahc->description = entry->name; 107 error = ahc_softc_init(ahc); 108 109 error = ahc_reset(ahc); 110 if (error != 0) 111 return (error); 112 113 /* Make sure we have a valid interrupt vector */ 114 intdef = ahc_inb(ahc, INTDEF); 115 irq = intdef & VECTOR; 116 switch (irq) { 117 case 9: 118 case 10: 119 case 11: 120 case 12: 121 case 14: 122 case 15: 123 break; 124 default: 125 printf("aic7770_config: illegal irq setting %d\n", intdef); 126 return (ENXIO); 127 } 128 129 if ((intdef & EDGE_TRIG) != 0) 130 ahc->flags |= AHC_EDGE_INTERRUPT; 131 132 switch (ahc->chip & (AHC_EISA|AHC_VL)) { 133 case AHC_EISA: 134 { 135 u_int biosctrl; 136 u_int scsiconf; 137 u_int scsiconf1; 138 139 biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL); 140 scsiconf = ahc_inb(ahc, SCSICONF); 141 scsiconf1 = ahc_inb(ahc, SCSICONF + 1); 142 143 /* Get the primary channel information */ 144 if ((biosctrl & CHANNEL_B_PRIMARY) != 0) 145 ahc->flags |= 1; 146 147 if ((biosctrl & BIOSMODE) == BIOSDISABLED) { 148 ahc->flags |= AHC_USEDEFAULTS; 149 } else { 150 if ((ahc->features & AHC_WIDE) != 0) { 151 ahc->our_id = scsiconf1 & HWSCSIID; 152 if (scsiconf & TERM_ENB) 153 ahc->flags |= AHC_TERM_ENB_A; 154 } else { 155 ahc->our_id = scsiconf & HSCSIID; 156 ahc->our_id_b = scsiconf1 & HSCSIID; 157 if (scsiconf & TERM_ENB) 158 ahc->flags |= AHC_TERM_ENB_A; 159 if (scsiconf1 & TERM_ENB) 160 ahc->flags |= AHC_TERM_ENB_B; 161 } 162 } 163 /* 164 * We have no way to tell, so assume extended 165 * translation is enabled. 166 */ 167 ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B; 168 break; 169 } 170 case AHC_VL: 171 { 172 aha2840_load_seeprom(ahc); 173 break; 174 } 175 default: 176 break; 177 } 178 179 /* 180 * Ensure autoflush is enabled 181 */ 182 ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS); 183 184 /* Setup the FIFO threshold and the bus off time */ 185 hostconf = ahc_inb(ahc, HOSTCONF); 186 ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH); 187 ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF); 188 189 /* 190 * Generic aic7xxx initialization. 191 */ 192 error = ahc_init(ahc); 193 if (error != 0) 194 return (error); 195 196 /* 197 * Link this softc in with all other ahc instances. 198 */ 199 ahc_softc_insert(ahc); 200 201 error = aic7770_map_int(ahc, irq); 202 if (error != 0) 203 return (error); 204 205 /* 206 * Enable the board's BUS drivers 207 */ 208 ahc_outb(ahc, BCTL, ENABLE); 209 210 /* 211 * Allow interrupts. 212 */ 213 ahc_intr_enable(ahc, TRUE); 214 215 return (0); 216 } 217 218 /* 219 * Read the 284x SEEPROM. 220 */ 221 static void 222 aha2840_load_seeprom(struct ahc_softc *ahc) 223 { 224 struct seeprom_descriptor sd; 225 struct seeprom_config sc; 226 uint16_t checksum = 0; 227 uint8_t scsi_conf; 228 int have_seeprom; 229 230 sd.sd_ahc = ahc; 231 sd.sd_control_offset = SEECTL_2840; 232 sd.sd_status_offset = STATUS_2840; 233 sd.sd_dataout_offset = STATUS_2840; 234 sd.sd_chip = C46; 235 sd.sd_MS = 0; 236 sd.sd_RDY = EEPROM_TF; 237 sd.sd_CS = CS_2840; 238 sd.sd_CK = CK_2840; 239 sd.sd_DO = DO_2840; 240 sd.sd_DI = DI_2840; 241 242 if (bootverbose) 243 printf("%s: Reading SEEPROM...", ahc_name(ahc)); 244 have_seeprom = read_seeprom(&sd, 245 (uint16_t *)&sc, 246 /*start_addr*/0, 247 sizeof(sc)/2); 248 249 if (have_seeprom) { 250 /* Check checksum */ 251 int i; 252 int maxaddr = (sizeof(sc)/2) - 1; 253 uint16_t *scarray = (uint16_t *)≻ 254 255 for (i = 0; i < maxaddr; i++) 256 checksum = checksum + scarray[i]; 257 if (checksum != sc.checksum) { 258 if(bootverbose) 259 printf ("checksum error\n"); 260 have_seeprom = 0; 261 } else if (bootverbose) { 262 printf("done.\n"); 263 } 264 } 265 266 if (!have_seeprom) { 267 if (bootverbose) 268 printf("%s: No SEEPROM available\n", ahc_name(ahc)); 269 ahc->flags |= AHC_USEDEFAULTS; 270 } else { 271 /* 272 * Put the data we've collected down into SRAM 273 * where ahc_init will find it. 274 */ 275 int i; 276 int max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8; 277 uint16_t discenable; 278 279 discenable = 0; 280 for (i = 0; i < max_targ; i++){ 281 uint8_t target_settings; 282 target_settings = (sc.device_flags[i] & CFXFER) << 4; 283 if (sc.device_flags[i] & CFSYNCH) 284 target_settings |= SOFS; 285 if (sc.device_flags[i] & CFWIDEB) 286 target_settings |= WIDEXFER; 287 if (sc.device_flags[i] & CFDISC) 288 discenable |= (0x01 << i); 289 ahc_outb(ahc, TARG_SCSIRATE + i, target_settings); 290 } 291 ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff)); 292 ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff)); 293 294 ahc->our_id = sc.brtime_id & CFSCSIID; 295 296 scsi_conf = (ahc->our_id & 0x7); 297 if (sc.adapter_control & CFSPARITY) 298 scsi_conf |= ENSPCHK; 299 if (sc.adapter_control & CFRESETB) 300 scsi_conf |= RESET_SCSI; 301 302 if (sc.bios_control & CF284XEXTEND) 303 ahc->flags |= AHC_EXTENDED_TRANS_A; 304 /* Set SCSICONF info */ 305 ahc_outb(ahc, SCSICONF, scsi_conf); 306 307 if (sc.adapter_control & CF284XSTERM) 308 ahc->flags |= AHC_TERM_ENB_A; 309 } 310 } 311 312 static int 313 ahc_aic7770_VL_setup(struct ahc_softc *ahc) 314 { 315 int error; 316 317 error = ahc_aic7770_setup(ahc); 318 ahc->chip |= AHC_VL; 319 return (error); 320 } 321 322 static int 323 ahc_aic7770_EISA_setup(struct ahc_softc *ahc) 324 { 325 int error; 326 327 error = ahc_aic7770_setup(ahc); 328 ahc->chip |= AHC_EISA; 329 return (error); 330 } 331 332 static int 333 ahc_aic7770_setup(struct ahc_softc *ahc) 334 { 335 ahc->channel = 'A'; 336 ahc->channel_b = 'B'; 337 ahc->chip = AHC_AIC7770; 338 ahc->features = AHC_AIC7770_FE; 339 ahc->bugs |= AHC_TMODE_WIDEODD_BUG; 340 ahc->flags |= AHC_PAGESCBS; 341 return (0); 342 } 343