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1/*2 * Product specific probe and attach routines for:3 * 27/284X and aic7770 motherboard SCSI controllers4 *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 without9 * modification, are permitted provided that the following conditions10 * are met:11 * 1. Redistributions of source code must retain the above copyright12 * notice, this list of conditions, and the following disclaimer,13 * without modification.14 * 2. Redistributions in binary form must reproduce at minimum a disclaimer15 * substantially similar to the "NO WARRANTY" disclaimer below16 * ("Disclaimer") and any redistribution must be conditioned upon17 * including a substantially similar Disclaimer requirement for further18 * binary redistribution.19 * 3. Neither the names of the above-listed copyright holders nor the names20 * of any contributors may be used to endorse or promote products derived21 * from this software without specific prior written permission.22 *23 * Alternatively, this software may be distributed under the terms of the24 * GNU General Public License ("GPL") version 2 as published by the Free25 * Software Foundation.26 *27 * NO WARRANTY28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT32 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS34 * 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) ARISING37 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE38 * 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 0x0490777050#define ID_AHA_274x 0x0490777151#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 56static int aic7770_chip_init(struct ahc_softc *ahc);57static int aha2840_load_seeprom(struct ahc_softc *ahc);58static ahc_device_setup_t ahc_aic7770_VL_setup;59static ahc_device_setup_t ahc_aic7770_EISA_setup;60static ahc_device_setup_t ahc_aic7770_setup;61 62struct aic7770_identity aic7770_ident_table[] =63{64 {65 ID_AHA_274x,66 0xFFFFFFFF,67 "Adaptec 274X SCSI adapter",68 ahc_aic7770_EISA_setup69 },70 {71 ID_AHA_284xB,72 0xFFFFFFFE,73 "Adaptec 284X SCSI adapter",74 ahc_aic7770_VL_setup75 },76 {77 ID_AHA_284x,78 0xFFFFFFFE,79 "Adaptec 284X SCSI adapter (BIOS Disabled)",80 ahc_aic7770_VL_setup81 },82 {83 ID_OLV_274x,84 0xFFFFFFFF,85 "Adaptec (Olivetti OEM) 274X SCSI adapter",86 ahc_aic7770_EISA_setup87 },88 {89 ID_OLV_274xD,90 0xFFFFFFFF,91 "Adaptec (Olivetti OEM) 274X Differential SCSI adapter",92 ahc_aic7770_EISA_setup93 },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_setup100 }101};102const int ahc_num_aic7770_devs = ARRAY_SIZE(aic7770_ident_table);103 104struct aic7770_identity *105aic7770_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 118int119aic7770_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 that138 * its interrupts are *disabled*. We don't want139 * a misstep to hang the machine in an interrupt140 * 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 enabled224 */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 drivers250 */251 ahc_outb(ahc, BCTL, ENABLE);252 return (0);253}254 255static int256aic7770_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 */268static int269aha2840_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 SRAM312 * 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 354static int355ahc_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 364static int365ahc_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 374static int375ahc_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