384 lines
10 KiB
C
384 lines
10 KiB
C
/*
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* Device probe and attach routines for the following
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* Advanced Systems Inc. SCSI controllers:
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*
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* Connectivity Products:
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* ABP510/5150 - Bus-Master ISA (240 CDB) *
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* ABP5140 - Bus-Master ISA PnP (16 CDB) * **
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* ABP5142 - Bus-Master ISA PnP with floppy (16 CDB) ***
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*
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* Single Channel Products:
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* ABP542 - Bus-Master ISA with floppy (240 CDB)
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* ABP842 - Bus-Master VL (240 CDB)
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*
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* Dual Channel Products:
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* ABP852 - Dual Channel Bus-Master VL (240 CDB Per Channel)
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*
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* * This board has been shipped by HP with the 4020i CD-R drive.
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* The board has no BIOS so it cannot control a boot device, but
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* it can control any secondary SCSI device.
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* ** This board has been sold by SIIG as the i540 SpeedMaster.
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* *** This board has been sold by SIIG as the i542 SpeedMaster.
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*
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* Copyright (c) 1996, 1997 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, immediately at the beginning of the file.
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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: adv_isa.c,v 1.6 1998/10/12 18:53:33 imp Exp $
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <machine/bus_pio.h>
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#include <machine/bus.h>
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#include <i386/isa/isa.h>
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#include <i386/isa/isa_device.h>
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#include <dev/advansys/advansys.h>
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#include <cam/scsi/scsi_all.h>
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#define ADV_ISA_MAX_DMA_ADDR (0x00FFFFFFL)
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#define ADV_ISA_MAX_DMA_COUNT (0x00FFFFFFL)
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#define ADV_VL_MAX_DMA_ADDR (0x07FFFFFFL)
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#define ADV_VL_MAX_DMA_COUNT (0x07FFFFFFL)
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/*
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* The overrun buffer shared amongst all ISA/VL adapters.
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*/
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static u_int8_t* overrun_buf;
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bus_dma_tag_t overrun_dmat;
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bus_dmamap_t overrun_dmamap;
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bus_addr_t overrun_physbase;
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/* Possible port addresses an ISA or VL adapter can live at */
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u_int16_t adv_isa_ioports[] =
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{
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0x100,
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0x110, /* First selection in BIOS setup */
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0x120,
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0x130, /* Second selection in BIOS setup */
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0x140,
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0x150, /* Third selection in BIOS setup */
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0x190, /* Fourth selection in BIOS setup */
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0x210, /* Fifth selection in BIOS setup */
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0x230, /* Sixth selection in BIOS setup */
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0x250, /* Seventh selection in BIOS setup */
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0x330 /* Eighth and default selection in BIOS setup */
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};
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#define MAX_ISA_IOPORT_INDEX (sizeof(adv_isa_ioports)/sizeof(u_int16_t) - 1)
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static int advisaprobe(struct isa_device *id);
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static int advisaattach(struct isa_device *id);
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static void adv_set_isapnp_wait_for_key(void);
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static int adv_get_isa_dma_channel(struct adv_softc *adv);
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static int adv_set_isa_dma_settings(struct adv_softc *adv);
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void adv_isa_intr(void *unit);
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struct isa_driver advdriver =
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{
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advisaprobe,
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advisaattach,
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"adv"
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};
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static int
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advisaprobe(struct isa_device *id)
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{
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int port_index;
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int max_port_index;
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/*
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* Default to scanning all possible device locations.
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*/
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port_index = 0;
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max_port_index = MAX_ISA_IOPORT_INDEX;
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if (id->id_iobase > 0) {
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for (;port_index <= max_port_index; port_index++)
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if (id->id_iobase <= adv_isa_ioports[port_index])
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break;
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if ((port_index > max_port_index)
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|| (id->id_iobase != adv_isa_ioports[port_index])) {
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printf("adv%d: Invalid baseport of 0x%x specified. "
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"Neerest valid baseport is 0x%x. Failing "
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"probe.\n", id->id_unit, id->id_iobase,
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(port_index <= max_port_index) ?
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adv_isa_ioports[port_index] :
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adv_isa_ioports[max_port_index]);
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return 0;
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}
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max_port_index = port_index;
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}
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/* Perform the actual probing */
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adv_set_isapnp_wait_for_key();
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for (;port_index <= max_port_index; port_index++) {
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u_int16_t port_addr = adv_isa_ioports[port_index];
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bus_size_t maxsegsz;
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bus_size_t maxsize;
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bus_addr_t lowaddr;
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int error;
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if (port_addr == 0)
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/* Already been attached */
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continue;
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id->id_iobase = port_addr;
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if (haveseen_isadev(id, CC_IOADDR | CC_QUIET))
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continue;
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if (adv_find_signature(I386_BUS_SPACE_IO, port_addr)) {
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/*
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* Got one. Now allocate our softc
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* and see if we can initialize the card.
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*/
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struct adv_softc *adv;
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adv = adv_alloc(id->id_unit, I386_BUS_SPACE_IO,
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port_addr);
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if (adv == NULL)
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return (0);
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adv_unit++;
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id->id_iobase = adv->bsh;
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/*
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* Stop the chip.
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*/
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ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT);
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ADV_OUTW(adv, ADV_CHIP_STATUS, 0);
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/*
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* Determine the chip version.
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*/
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adv->chip_version = ADV_INB(adv,
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ADV_NONEISA_CHIP_REVISION);
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if ((adv->chip_version >= ADV_CHIP_MIN_VER_VL)
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&& (adv->chip_version <= ADV_CHIP_MAX_VER_VL)) {
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adv->type = ADV_VL;
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maxsegsz = ADV_VL_MAX_DMA_COUNT;
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maxsize = BUS_SPACE_MAXSIZE_32BIT;
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lowaddr = ADV_VL_MAX_DMA_ADDR;
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id->id_drq = -1;
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} else if ((adv->chip_version >= ADV_CHIP_MIN_VER_ISA)
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&& (adv->chip_version <= ADV_CHIP_MAX_VER_ISA)) {
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if (adv->chip_version >= ADV_CHIP_MIN_VER_ISA_PNP) {
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adv->type = ADV_ISAPNP;
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ADV_OUTB(adv, ADV_REG_IFC,
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ADV_IFC_INIT_DEFAULT);
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} else {
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adv->type = ADV_ISA;
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}
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maxsegsz = ADV_ISA_MAX_DMA_COUNT;
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maxsize = BUS_SPACE_MAXSIZE_24BIT;
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lowaddr = ADV_ISA_MAX_DMA_ADDR;
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adv->isa_dma_speed = ADV_DEF_ISA_DMA_SPEED;
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adv->isa_dma_channel =
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adv_get_isa_dma_channel(adv);
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id->id_drq = adv->isa_dma_channel;
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} else {
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panic("advisaprobe: Unknown card revision\n");
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}
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/*
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* Allocate a parent dmatag for all tags created
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* by the MI portions of the advansys driver
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*/
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/* XXX Should be a child of the ISA bus dma tag */
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error =
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bus_dma_tag_create(/*parent*/NULL,
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/*alignemnt*/0,
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/*boundary*/0,
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lowaddr,
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/*highaddr*/BUS_SPACE_MAXADDR,
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/*filter*/NULL,
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/*filterarg*/NULL,
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maxsize,
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/*nsegs*/BUS_SPACE_UNRESTRICTED,
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maxsegsz,
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/*flags*/0,
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&adv->parent_dmat);
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if (error != 0) {
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printf("%s: Could not allocate DMA tag - error %d\n",
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adv_name(adv), error);
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adv_free(adv);
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return (0);
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}
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adv->init_level++;
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if (overrun_buf == NULL) {
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/* Need to allocate our overrun buffer */
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if (bus_dma_tag_create(adv->parent_dmat,
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/*alignment*/8,
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/*boundary*/0,
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ADV_ISA_MAX_DMA_ADDR,
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BUS_SPACE_MAXADDR,
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/*filter*/NULL,
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/*filterarg*/NULL,
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ADV_OVERRUN_BSIZE,
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/*nsegments*/1,
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BUS_SPACE_MAXSIZE_32BIT,
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/*flags*/0,
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&overrun_dmat) != 0) {
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adv_free(adv);
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return (0);
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}
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if (bus_dmamem_alloc(overrun_dmat,
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(void **)&overrun_buf,
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BUS_DMA_NOWAIT,
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&overrun_dmamap) != 0) {
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bus_dma_tag_destroy(overrun_dmat);
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adv_free(adv);
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return (0);
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}
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/* And permanently map it in */
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bus_dmamap_load(overrun_dmat, overrun_dmamap,
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overrun_buf, ADV_OVERRUN_BSIZE,
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adv_map, &overrun_physbase,
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/*flags*/0);
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}
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adv->overrun_physbase = overrun_physbase;
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if (adv_init(adv) != 0) {
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adv_free(adv);
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return (0);
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}
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switch (adv->type) {
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case ADV_ISAPNP:
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if (adv->chip_version == ADV_CHIP_VER_ASYN_BUG){
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adv->bug_fix_control
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|= ADV_BUG_FIX_ASYN_USE_SYN;
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adv->fix_asyn_xfer = ~0;
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}
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/* Fall Through */
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case ADV_ISA:
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adv->max_dma_count = ADV_ISA_MAX_DMA_COUNT;
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adv->max_dma_addr = ADV_ISA_MAX_DMA_ADDR;
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adv_set_isa_dma_settings(adv);
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break;
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case ADV_VL:
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adv->max_dma_count = ADV_VL_MAX_DMA_COUNT;
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adv->max_dma_addr = ADV_VL_MAX_DMA_ADDR;
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break;
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default:
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panic("advisaprobe: Invalid card type\n");
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}
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/* Determine our IRQ */
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if (id->id_irq == 0 /* irq ? */)
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id->id_irq = 1 << adv_get_chip_irq(adv);
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else
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adv_set_chip_irq(adv, ffs(id->id_irq) - 1);
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id->id_intr = adv_isa_intr;
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/* Mark as probed */
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adv_isa_ioports[port_index] = 0;
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return 1;
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}
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}
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return 0;
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}
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static int
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advisaattach(struct isa_device *id)
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{
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struct adv_softc *adv;
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adv = advsoftcs[id->id_unit];
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return (adv_attach(adv));
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}
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static int
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adv_get_isa_dma_channel(struct adv_softc *adv)
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{
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int channel;
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channel = ADV_INW(adv, ADV_CONFIG_LSW) & ADV_CFG_LSW_ISA_DMA_CHANNEL;
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if (channel == 0x03)
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return (0);
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else if (channel == 0x00)
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return (7);
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return (channel + 4);
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}
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static int
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adv_set_isa_dma_settings(struct adv_softc *adv)
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{
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u_int16_t cfg_lsw;
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u_int8_t value;
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if ((adv->isa_dma_channel >= 5) && (adv->isa_dma_channel <= 7)) {
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if (adv->isa_dma_channel == 7)
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value = 0x00;
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else
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value = adv->isa_dma_channel - 4;
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cfg_lsw = ADV_INW(adv, ADV_CONFIG_LSW)
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& ~ADV_CFG_LSW_ISA_DMA_CHANNEL;
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cfg_lsw |= value;
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ADV_OUTW(adv, ADV_CONFIG_LSW, cfg_lsw);
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adv->isa_dma_speed &= 0x07;
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adv_set_bank(adv, 1);
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ADV_OUTB(adv, ADV_DMA_SPEED, adv->isa_dma_speed);
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adv_set_bank(adv, 0);
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isa_dmacascade(adv->isa_dma_channel);
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}
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return (0);
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}
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static void
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adv_set_isapnp_wait_for_key(void)
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{
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static int isapnp_wait_set = 0;
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if (isapnp_wait_set == 0) {
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outb(ADV_ISA_PNP_PORT_ADDR, 0x02);
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outb(ADV_ISA_PNP_PORT_WRITE, 0x02);
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isapnp_wait_set++;
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}
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return;
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}
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/*
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* Handle an ISA interrupt.
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* XXX should go away as soon as ISA interrupt handlers
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* take a (void *) arg.
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*/
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void
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adv_isa_intr(void *unit)
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{
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struct adv_softc *arg = advsoftcs[(int)unit];
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adv_intr((void *)arg);
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}
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