386 строки
9.5 KiB
C
386 строки
9.5 KiB
C
/*
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* Product specific probe and attach routines for:
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* 27/284X and aic7770 motherboard SCSI controllers
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*
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* Copyright (c) 1994-1998, 2000, 2001 Justin T. Gibbs.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*
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* $Id: //depot/aic7xxx/aic7xxx/aic7770.c#32 $
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*
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* $FreeBSD$
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*/
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#include "aic7xxx_osm.h"
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#include "aic7xxx_inline.h"
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#include "aic7xxx_93cx6.h"
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#define ID_AIC7770 0x04907770
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#define ID_AHA_274x 0x04907771
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#define ID_AHA_284xB 0x04907756 /* BIOS enabled */
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#define ID_AHA_284x 0x04907757 /* BIOS disabled*/
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#define ID_OLV_274x 0x04907782 /* Olivetti OEM */
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#define ID_OLV_274xD 0x04907783 /* Olivetti OEM (Differential) */
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static int aic7770_chip_init(struct ahc_softc *ahc);
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static int aha2840_load_seeprom(struct ahc_softc *ahc);
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static ahc_device_setup_t ahc_aic7770_VL_setup;
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static ahc_device_setup_t ahc_aic7770_EISA_setup;
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static ahc_device_setup_t ahc_aic7770_setup;
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struct aic7770_identity aic7770_ident_table[] =
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{
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{
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ID_AHA_274x,
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0xFFFFFFFF,
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"Adaptec 274X SCSI adapter",
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ahc_aic7770_EISA_setup
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},
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{
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ID_AHA_284xB,
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0xFFFFFFFE,
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"Adaptec 284X SCSI adapter",
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ahc_aic7770_VL_setup
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},
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{
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ID_AHA_284x,
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0xFFFFFFFE,
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"Adaptec 284X SCSI adapter (BIOS Disabled)",
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ahc_aic7770_VL_setup
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},
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{
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ID_OLV_274x,
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0xFFFFFFFF,
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"Adaptec (Olivetti OEM) 274X SCSI adapter",
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ahc_aic7770_EISA_setup
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},
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{
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ID_OLV_274xD,
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0xFFFFFFFF,
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"Adaptec (Olivetti OEM) 274X Differential SCSI adapter",
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ahc_aic7770_EISA_setup
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},
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/* Generic chip probes for devices we don't know 'exactly' */
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{
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ID_AIC7770,
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0xFFFFFFFF,
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"Adaptec aic7770 SCSI adapter",
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ahc_aic7770_EISA_setup
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}
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};
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const int ahc_num_aic7770_devs = ARRAY_SIZE(aic7770_ident_table);
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struct aic7770_identity *
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aic7770_find_device(uint32_t id)
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{
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struct aic7770_identity *entry;
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int i;
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for (i = 0; i < ahc_num_aic7770_devs; i++) {
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entry = &aic7770_ident_table[i];
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if (entry->full_id == (id & entry->id_mask))
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return (entry);
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}
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return (NULL);
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}
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int
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aic7770_config(struct ahc_softc *ahc, struct aic7770_identity *entry, u_int io)
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{
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int error;
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int have_seeprom;
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u_int hostconf;
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u_int irq;
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u_int intdef;
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error = entry->setup(ahc);
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have_seeprom = 0;
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if (error != 0)
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return (error);
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error = aic7770_map_registers(ahc, io);
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if (error != 0)
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return (error);
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/*
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* Before we continue probing the card, ensure that
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* its interrupts are *disabled*. We don't want
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* a misstep to hang the machine in an interrupt
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* storm.
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*/
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ahc_intr_enable(ahc, FALSE);
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ahc->description = entry->name;
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error = ahc_softc_init(ahc);
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if (error != 0)
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return (error);
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ahc->bus_chip_init = aic7770_chip_init;
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error = ahc_reset(ahc, /*reinit*/FALSE);
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if (error != 0)
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return (error);
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/* Make sure we have a valid interrupt vector */
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intdef = ahc_inb(ahc, INTDEF);
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irq = intdef & VECTOR;
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switch (irq) {
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case 9:
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case 10:
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case 11:
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case 12:
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case 14:
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case 15:
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break;
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default:
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printk("aic7770_config: invalid irq setting %d\n", intdef);
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return (ENXIO);
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}
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if ((intdef & EDGE_TRIG) != 0)
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ahc->flags |= AHC_EDGE_INTERRUPT;
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switch (ahc->chip & (AHC_EISA|AHC_VL)) {
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case AHC_EISA:
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{
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u_int biosctrl;
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u_int scsiconf;
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u_int scsiconf1;
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biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL);
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scsiconf = ahc_inb(ahc, SCSICONF);
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scsiconf1 = ahc_inb(ahc, SCSICONF + 1);
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/* Get the primary channel information */
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if ((biosctrl & CHANNEL_B_PRIMARY) != 0)
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ahc->flags |= 1;
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if ((biosctrl & BIOSMODE) == BIOSDISABLED) {
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ahc->flags |= AHC_USEDEFAULTS;
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} else {
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if ((ahc->features & AHC_WIDE) != 0) {
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ahc->our_id = scsiconf1 & HWSCSIID;
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if (scsiconf & TERM_ENB)
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ahc->flags |= AHC_TERM_ENB_A;
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} else {
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ahc->our_id = scsiconf & HSCSIID;
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ahc->our_id_b = scsiconf1 & HSCSIID;
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if (scsiconf & TERM_ENB)
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ahc->flags |= AHC_TERM_ENB_A;
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if (scsiconf1 & TERM_ENB)
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ahc->flags |= AHC_TERM_ENB_B;
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}
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}
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if ((ahc_inb(ahc, HA_274_BIOSGLOBAL) & HA_274_EXTENDED_TRANS))
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ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B;
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break;
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}
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case AHC_VL:
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{
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have_seeprom = aha2840_load_seeprom(ahc);
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break;
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}
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default:
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break;
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}
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if (have_seeprom == 0) {
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kfree(ahc->seep_config);
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ahc->seep_config = NULL;
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}
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/*
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* Ensure autoflush is enabled
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*/
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ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);
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/* Setup the FIFO threshold and the bus off time */
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hostconf = ahc_inb(ahc, HOSTCONF);
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ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH);
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ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF);
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ahc->bus_softc.aic7770_softc.busspd = hostconf & DFTHRSH;
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ahc->bus_softc.aic7770_softc.bustime = (hostconf << 2) & BOFF;
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/*
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* Generic aic7xxx initialization.
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*/
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error = ahc_init(ahc);
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if (error != 0)
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return (error);
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error = aic7770_map_int(ahc, irq);
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if (error != 0)
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return (error);
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ahc->init_level++;
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/*
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* Enable the board's BUS drivers
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*/
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ahc_outb(ahc, BCTL, ENABLE);
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return (0);
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}
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static int
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aic7770_chip_init(struct ahc_softc *ahc)
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{
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ahc_outb(ahc, BUSSPD, ahc->bus_softc.aic7770_softc.busspd);
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ahc_outb(ahc, BUSTIME, ahc->bus_softc.aic7770_softc.bustime);
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ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);
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ahc_outb(ahc, BCTL, ENABLE);
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return (ahc_chip_init(ahc));
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}
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/*
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* Read the 284x SEEPROM.
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*/
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static int
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aha2840_load_seeprom(struct ahc_softc *ahc)
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{
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struct seeprom_descriptor sd;
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struct seeprom_config *sc;
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int have_seeprom;
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uint8_t scsi_conf;
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sd.sd_ahc = ahc;
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sd.sd_control_offset = SEECTL_2840;
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sd.sd_status_offset = STATUS_2840;
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sd.sd_dataout_offset = STATUS_2840;
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sd.sd_chip = C46;
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sd.sd_MS = 0;
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sd.sd_RDY = EEPROM_TF;
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sd.sd_CS = CS_2840;
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sd.sd_CK = CK_2840;
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sd.sd_DO = DO_2840;
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sd.sd_DI = DI_2840;
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sc = ahc->seep_config;
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if (bootverbose)
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printk("%s: Reading SEEPROM...", ahc_name(ahc));
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have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc,
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/*start_addr*/0, sizeof(*sc)/2);
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if (have_seeprom) {
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if (ahc_verify_cksum(sc) == 0) {
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if(bootverbose)
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printk ("checksum error\n");
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have_seeprom = 0;
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} else if (bootverbose) {
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printk("done.\n");
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}
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}
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if (!have_seeprom) {
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if (bootverbose)
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printk("%s: No SEEPROM available\n", ahc_name(ahc));
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ahc->flags |= AHC_USEDEFAULTS;
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} else {
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/*
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* Put the data we've collected down into SRAM
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* where ahc_init will find it.
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*/
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int i;
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int max_targ;
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uint16_t discenable;
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max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8;
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discenable = 0;
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for (i = 0; i < max_targ; i++){
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uint8_t target_settings;
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target_settings = (sc->device_flags[i] & CFXFER) << 4;
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if (sc->device_flags[i] & CFSYNCH)
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target_settings |= SOFS;
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if (sc->device_flags[i] & CFWIDEB)
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target_settings |= WIDEXFER;
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if (sc->device_flags[i] & CFDISC)
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discenable |= (0x01 << i);
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ahc_outb(ahc, TARG_SCSIRATE + i, target_settings);
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}
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ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff));
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ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff));
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ahc->our_id = sc->brtime_id & CFSCSIID;
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scsi_conf = (ahc->our_id & 0x7);
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if (sc->adapter_control & CFSPARITY)
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scsi_conf |= ENSPCHK;
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if (sc->adapter_control & CFRESETB)
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scsi_conf |= RESET_SCSI;
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if (sc->bios_control & CF284XEXTEND)
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ahc->flags |= AHC_EXTENDED_TRANS_A;
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/* Set SCSICONF info */
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ahc_outb(ahc, SCSICONF, scsi_conf);
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if (sc->adapter_control & CF284XSTERM)
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ahc->flags |= AHC_TERM_ENB_A;
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}
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return (have_seeprom);
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}
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static int
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ahc_aic7770_VL_setup(struct ahc_softc *ahc)
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{
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int error;
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error = ahc_aic7770_setup(ahc);
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ahc->chip |= AHC_VL;
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return (error);
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}
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static int
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ahc_aic7770_EISA_setup(struct ahc_softc *ahc)
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{
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int error;
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error = ahc_aic7770_setup(ahc);
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ahc->chip |= AHC_EISA;
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return (error);
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}
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static int
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ahc_aic7770_setup(struct ahc_softc *ahc)
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{
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ahc->channel = 'A';
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ahc->channel_b = 'B';
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ahc->chip = AHC_AIC7770;
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ahc->features = AHC_AIC7770_FE;
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ahc->bugs |= AHC_TMODE_WIDEODD_BUG;
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ahc->flags |= AHC_PAGESCBS;
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ahc->instruction_ram_size = 448;
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return (0);
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}
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