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344 lines
8.3 KiB
C
344 lines
8.3 KiB
C
/*
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* Product specific probe and attach routines for:
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* Buslogic BT74x SCSI controllers
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*
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* Copyright (c) 1995, 1998, 1999 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 immediately at the beginning of the file, without modification,
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* this list of conditions, and the following disclaimer.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, 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, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: bt_eisa.c,v 1.6 1999/04/24 06:46:10 peter Exp $
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*/
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#include "eisa.h"
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#if NEISA > 0
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <machine/bus_pio.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <i386/eisa/eisaconf.h>
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#include <dev/buslogic/btreg.h>
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#define EISA_DEVICE_ID_BUSLOGIC_74X_B 0x0ab34201
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#define EISA_DEVICE_ID_BUSLOGIC_74X_C 0x0ab34202
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#define EISA_DEVICE_ID_SDC3222F 0x0ab34781
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#define EISA_DEVICE_ID_AMI_4801 0x05a94801
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#define BT_IOSIZE 0x04 /* Move to central header */
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#define BT_EISA_IOSIZE 0x100
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#define BT_EISA_SLOT_OFFSET 0xc00
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#define EISA_IOCONF 0x08C
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#define PORTADDR 0x07
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#define PORT_330 0x00
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#define PORT_334 0x01
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#define PORT_230 0x02
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#define PORT_234 0x03
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#define PORT_130 0x04
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#define PORT_134 0x05
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#define IRQ_CHANNEL 0xe0
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#define INT_11 0x40
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#define INT_10 0x20
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#define INT_15 0xa0
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#define INT_12 0x60
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#define INT_14 0x80
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#define INT_9 0x00
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#define EISA_IRQ_TYPE 0x08D
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#define LEVEL 0x40
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/* Definitions for the AMI Series 48 controler */
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#define AMI_EISA_IOSIZE 0x500 /* Two separate ranges?? */
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#define AMI_EISA_SLOT_OFFSET 0x800
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#define AMI_EISA_IOCONF 0x000
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#define AMI_DMA_CHANNEL 0x03
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#define AMI_IRQ_CHANNEL 0x1c
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#define AMI_INT_15 0x14
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#define AMI_INT_14 0x10
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#define AMI_INT_12 0x0c
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#define AMI_INT_11 0x00
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#define AMI_INT_10 0x08
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#define AMI_INT_9 0x04
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#define AMI_BIOS_ADDR 0xe0
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#define AMI_EISA_IOCONF1 0x001
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#define AMI_PORTADDR 0x0e
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#define AMI_PORT_334 0x08
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#define AMI_PORT_330 0x00
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#define AMI_PORT_234 0x0c
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#define AMI_PORT_230 0x04
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#define AMI_PORT_134 0x0a
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#define AMI_PORT_130 0x02
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#define AMI_IRQ_LEVEL 0x01
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#define AMI_MISC2_OPTIONS 0x49E
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#define AMI_ENABLE_ISA_DMA 0x08
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static const char *bt_match(eisa_id_t type);
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static int
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bt_eisa_alloc_resources(device_t dev)
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{
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struct bt_softc *bt = device_get_softc(dev);
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int rid;
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struct resource *port;
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struct resource *irq;
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int shared;
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/*
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* XXX assumes that the iospace ranges are sorted in increasing
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* order.
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*/
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rid = 0;
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port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
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0, ~0, 1, RF_ACTIVE);
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if (!port)
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return (ENOMEM);
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bt_init_softc(dev, port, 0, 0);
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if (eisa_get_irq(dev) != -1) {
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shared = bt->level_trigger_ints ? RF_SHAREABLE : 0;
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rid = 0;
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irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
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0, ~0, 1, shared | RF_ACTIVE);
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if (!irq) {
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if (port)
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bus_release_resource(dev, SYS_RES_IOPORT,
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0, port);
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return (ENOMEM);
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}
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} else
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irq = 0;
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bt->irq = irq;
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return (0);
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}
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static void
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bt_eisa_release_resources(device_t dev)
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{
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struct bt_softc *bt = device_get_softc(dev);
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if (bt->port)
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bus_release_resource(dev, SYS_RES_IOPORT, 0, bt->port);
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if (bt->irq)
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bus_release_resource(dev, SYS_RES_IRQ, 0, bt->irq);
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bt_free_softc(dev);
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}
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static const char*
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bt_match(eisa_id_t type)
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{
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switch(type) {
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case EISA_DEVICE_ID_BUSLOGIC_74X_B:
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return ("Buslogic 74xB SCSI host adapter");
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break;
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case EISA_DEVICE_ID_BUSLOGIC_74X_C:
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return ("Buslogic 74xC SCSI host adapter");
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break;
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case EISA_DEVICE_ID_SDC3222F:
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return ("Storage Dimensions SDC3222F SCSI host adapter");
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break;
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case EISA_DEVICE_ID_AMI_4801:
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return ("AMI Series 48 SCSI host adapter");
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break;
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default:
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break;
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}
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return (NULL);
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}
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static int
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bt_eisa_probe(device_t dev)
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{
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const char *desc;
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u_long iobase;
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struct bt_probe_info info;
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u_long port;
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u_long iosize;
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u_int ioconf;
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int result;
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desc = bt_match(eisa_get_id(dev));
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if (!desc)
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return (ENXIO);
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device_set_desc(dev, desc);
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iobase = (eisa_get_slot(dev) * EISA_SLOT_SIZE);
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if (eisa_get_id(dev) == EISA_DEVICE_ID_AMI_4801) {
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u_int ioconf1;
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iobase += AMI_EISA_SLOT_OFFSET;
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iosize = AMI_EISA_IOSIZE;
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ioconf1 = inb(iobase + AMI_EISA_IOCONF1);
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/* Determine "ISA" I/O port */
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switch (ioconf1 & AMI_PORTADDR) {
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case AMI_PORT_330:
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port = 0x330;
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break;
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case AMI_PORT_334:
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port = 0x334;
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break;
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case AMI_PORT_230:
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port = 0x230;
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break;
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case AMI_PORT_234:
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port = 0x234;
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break;
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case AMI_PORT_134:
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port = 0x134;
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break;
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case AMI_PORT_130:
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port = 0x130;
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break;
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default:
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/* Disabled */
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printf("bt: AMI EISA Adapter at "
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"slot %d has a disabled I/O "
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"port. Cannot attach.\n",
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eisa_get_slot(dev));
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return (ENXIO);
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}
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} else {
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iobase += BT_EISA_SLOT_OFFSET;
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iosize = BT_EISA_IOSIZE;
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ioconf = inb(iobase + EISA_IOCONF);
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/* Determine "ISA" I/O port */
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switch (ioconf & PORTADDR) {
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case PORT_330:
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port = 0x330;
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break;
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case PORT_334:
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port = 0x334;
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break;
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case PORT_230:
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port = 0x230;
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break;
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case PORT_234:
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port = 0x234;
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break;
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case PORT_130:
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port = 0x130;
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break;
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case PORT_134:
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port = 0x134;
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break;
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default:
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/* Disabled */
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printf("bt: Buslogic EISA Adapter at "
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"slot %d has a disabled I/O "
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"port. Cannot attach.\n",
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eisa_get_slot(dev));
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return (ENXIO);
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}
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}
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bt_mark_probed_iop(port);
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/* Tell parent where our resources are going to be */
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eisa_add_iospace(dev, iobase, iosize, RESVADDR_NONE);
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eisa_add_iospace(dev, port, BT_IOSIZE, RESVADDR_NONE);
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/* And allocate them */
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bt_eisa_alloc_resources(dev);
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if (bt_port_probe(dev, &info) != 0) {
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printf("bt_eisa_probe: Probe failed for "
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"card at slot 0x%x\n", eisa_get_slot(dev));
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result = ENXIO;
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} else {
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eisa_add_intr(dev, info.irq);
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result = 0;
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}
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bt_eisa_release_resources(dev);
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return (result);
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}
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static int
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bt_eisa_attach(device_t dev)
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{
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struct bt_softc *bt = device_get_softc(dev);
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/* Allocate resources */
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bt_eisa_alloc_resources(dev);
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/* Allocate a dmatag for our SCB DMA maps */
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/* XXX Should be a child of the PCI bus dma tag */
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if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/0, /*boundary*/0,
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/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
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/*highaddr*/BUS_SPACE_MAXADDR,
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/*filter*/NULL, /*filterarg*/NULL,
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/*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
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/*nsegments*/BUS_SPACE_UNRESTRICTED,
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/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
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/*flags*/0, &bt->parent_dmat) != 0) {
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bt_eisa_release_resources(dev);
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return -1;
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}
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/*
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* Now that we know we own the resources we need, do the full
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* card initialization.
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*/
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if (bt_probe(dev) || bt_fetch_adapter_info(dev) || bt_init(dev)) {
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bt_eisa_release_resources(dev);
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return -1;
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}
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/* Attach sub-devices - always succeeds (sets up intr) */
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bt_attach(dev);
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return 0;
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}
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static device_method_t bt_eisa_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, bt_eisa_probe),
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DEVMETHOD(device_attach, bt_eisa_attach),
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{ 0, 0 }
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};
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static driver_t bt_eisa_driver = {
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"bt",
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bt_eisa_methods,
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sizeof(struct bt_softc),
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};
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static devclass_t bt_devclass;
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DRIVER_MODULE(bt, eisa, bt_eisa_driver, bt_devclass, 0, 0);
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#endif /* NEISA > 0 */
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