896 lines
24 KiB
C
896 lines
24 KiB
C
/*-
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* Copyright (c) 1998,1999 Søren Schmidt
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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. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. 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 ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include "ata.h"
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#include "apm.h"
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#include "isa.h"
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#include "pci.h"
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#include "atadisk.h"
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#include "atapicd.h"
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#include "atapifd.h"
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#include "atapist.h"
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#include "opt_global.h"
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#include "opt_ata.h"
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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/disk.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/buf.h>
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#include <sys/malloc.h>
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#include <sys/devicestat.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <machine/resource.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#if NPCI > 0
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#include <pci/pcivar.h>
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#include <pci/pcireg.h>
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#endif
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#include <isa/isavar.h>
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#include <isa/isareg.h>
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#include <machine/clock.h>
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#ifdef __i386__
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#include <machine/smp.h>
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#include <i386/isa/intr_machdep.h>
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#endif
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#if NAPM > 0
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#include <machine/apm_bios.h>
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#endif
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#include <dev/ata/ata-all.h>
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#include <dev/ata/ata-disk.h>
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#include <dev/ata/atapi-all.h>
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/* misc defines */
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#if SMP == 0
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#define isa_apic_irq(x) x
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#endif
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/* prototypes */
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static int32_t ata_probe(int32_t, int32_t, int32_t, device_t, int32_t *);
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static void ataintr(void *);
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static int8_t *active2str(int32_t);
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/* local vars */
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static int32_t atanlun = 2;
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struct ata_softc *atadevices[MAXATA];
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static devclass_t ata_devclass;
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MALLOC_DEFINE(M_ATA, "ATA generic", "ATA driver generic layer");
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#if NISA > 0
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static struct isa_pnp_id ata_ids[] = {
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{0x0006d041, "Generic ESDI/IDE/ATA controller"}, /* PNP0600 */
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{0x0106d041, "Plus Hardcard II"}, /* PNP0601 */
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{0x0206d041, "Plus Hardcard IIXL/EZ"}, /* PNP0602 */
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{0x0306d041, "Generic ATA"}, /* PNP0603 */
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{0}
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};
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static int
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ata_isaprobe(device_t dev)
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{
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struct resource *port;
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int rid;
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int32_t ctlr, res;
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int32_t lun;
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/* Check isapnp ids */
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if (ISA_PNP_PROBE(device_get_parent(dev), dev, ata_ids) == ENXIO)
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return (ENXIO);
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/* Allocate the port range */
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rid = 0;
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port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
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if (!port)
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return (ENOMEM);
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/* check if allready in use by a PCI device */
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for (ctlr = 0; ctlr < atanlun; ctlr++) {
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if (atadevices[ctlr] && atadevices[ctlr]->ioaddr==rman_get_start(port)){
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printf("ata-isa%d: already registered as ata%d\n",
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device_get_unit(dev), ctlr);
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bus_release_resource(dev, SYS_RES_IOPORT, 0, port);
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return ENXIO;
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}
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}
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lun = 0;
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res = ata_probe(rman_get_start(port), rman_get_start(port) + ATA_ALTPORT,
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0, dev, &lun);
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bus_release_resource(dev, SYS_RES_IOPORT, 0, port);
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if (res) {
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isa_set_portsize(dev, res);
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*(int *)device_get_softc(dev) = lun;
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return 0;
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}
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return ENXIO;
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}
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static int
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ata_isaattach(device_t dev)
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{
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struct resource *port;
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struct resource *irq;
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void *ih;
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int rid;
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/* Allocate the port range and interrupt */
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rid = 0;
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port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
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if (!port)
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return (ENOMEM);
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rid = 0;
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irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_ACTIVE);
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if (!irq) {
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bus_release_resource(dev, SYS_RES_IOPORT, 0, port);
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return (ENOMEM);
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}
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return bus_setup_intr(dev, irq, INTR_TYPE_BIO, ataintr,
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atadevices[*(int *)device_get_softc(dev)], &ih);
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}
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static device_method_t ata_isa_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, ata_isaprobe),
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DEVMETHOD(device_attach, ata_isaattach),
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{ 0, 0 }
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};
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static driver_t ata_isa_driver = {
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"ata",
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ata_isa_methods,
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sizeof(int),
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};
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DRIVER_MODULE(ata, isa, ata_isa_driver, ata_devclass, 0, 0);
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#endif
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#if NPCI > 0
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static const char *
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ata_pcimatch(device_t dev)
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{
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if (pci_get_class(dev) != PCIC_STORAGE)
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return NULL;
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switch (pci_get_devid(dev)) {
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/* supported chipsets */
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case 0x12308086:
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return "Intel PIIX IDE controller";
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case 0x70108086:
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return "Intel PIIX3 IDE controller";
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case 0x71118086:
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return "Intel PIIX4 IDE controller";
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case 0x522910b9:
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return "AcerLabs Aladdin IDE controller";
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case 0x4d33105a:
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return "Promise Ultra/33 IDE controller";
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case 0x4d38105a:
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return "Promise Ultra/66 IDE controller";
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case 0x00041103:
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return "HighPoint HPT366 IDE controller";
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/* unsupported but known chipsets, generic DMA only */
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case 0x05711106: /* 82c586 */
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case 0x05961106: /* 82c596 */
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return "VIA Apollo IDE controller (generic mode)";
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case 0x06401095:
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return "CMD 640 IDE controller (generic mode)";
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case 0x06461095:
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return "CMD 646 IDE controller (generic mode)";
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case 0xc6931080:
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return "Cypress 82C693 IDE controller (generic mode)";
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case 0x01021078:
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return "Cyrix 5530 IDE controller (generic mode)";
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default:
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if (pci_get_class(dev) == PCIC_STORAGE &&
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(pci_get_subclass(dev) == PCIS_STORAGE_IDE))
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return "Unknown PCI IDE controller (generic mode)";
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}
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return NULL;
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}
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static int
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ata_pciprobe(device_t dev)
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{
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const char *desc = ata_pcimatch(dev);
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if (desc) {
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device_set_desc(dev, desc);
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return 0;
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}
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else
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return ENXIO;
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}
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static int
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ata_pciattach(device_t dev)
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{
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int unit = device_get_unit(dev);
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struct ata_softc *scp;
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u_int32_t type;
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u_int8_t class, subclass;
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u_int32_t cmd;
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int32_t iobase_1, iobase_2, altiobase_1, altiobase_2;
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int32_t bmaddr_1 = 0, bmaddr_2 = 0, irq1, irq2;
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int32_t lun;
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/* set up vendor-specific stuff */
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type = pci_get_devid(dev);
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class = pci_get_class(dev);
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subclass = pci_get_subclass(dev);
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cmd = pci_read_config(dev, PCIR_COMMAND, 4);
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#ifdef ATA_DEBUG
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printf("ata-pci%d: type=%08x class=%02x subclass=%02x cmd=%08x if=%02x\n",
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unit, type, class, subclass, cmd, pci_get_progif(dev));
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#endif
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if (pci_get_progif(dev) & PCIP_STORAGE_IDE_MASTERDEV) {
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iobase_1 = IO_WD1;
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altiobase_1 = iobase_1 + ATA_ALTPORT;
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irq1 = 14;
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}
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else {
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iobase_1 = pci_read_config(dev, 0x10, 4) & 0xfffc;
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altiobase_1 = pci_read_config(dev, 0x14, 4) & 0xfffc;
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bmaddr_1 = pci_read_config(dev, 0x20, 4) & 0xfffc;
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irq1 = pci_read_config(dev, PCI_INTERRUPT_REG, 4) & 0xff;
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}
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if (pci_get_progif(dev) & PCIP_STORAGE_IDE_MASTERDEV) {
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iobase_2 = IO_WD2;
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altiobase_2 = iobase_2 + ATA_ALTPORT;
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irq2 = 15;
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}
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else {
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iobase_2 = pci_read_config(dev, 0x18, 4) & 0xfffc;
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altiobase_2 = pci_read_config(dev, 0x1c, 4) & 0xfffc;
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bmaddr_2 = (pci_read_config(dev, 0x20, 4) & 0xfffc) + ATA_BM_OFFSET1;
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irq2 = pci_read_config(dev, PCI_INTERRUPT_REG, 4) & 0xff;
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}
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/* is this controller busmaster DMA capable ? */
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if (pci_get_progif(dev) & PCIP_STORAGE_IDE_MASTERDEV) {
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/* is busmastering support turned on ? */
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if ((pci_read_config(dev, PCI_COMMAND_STATUS_REG, 4) & 5) == 5) {
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/* is there a valid port range to connect to ? */
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if ((bmaddr_1 = pci_read_config(dev, 0x20, 4) & 0xfffc)) {
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bmaddr_2 = bmaddr_1 + ATA_BM_OFFSET1;
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printf("ata-pci%d: Busmastering DMA supported\n", unit);
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}
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else
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printf("ata-pci%d: Busmastering DMA not configured\n", unit);
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}
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else
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printf("ata-pci%d: Busmastering DMA not enabled\n", unit);
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}
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else {
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/* the Promise controllers need this to support burst mode */
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if (type == 0x4d33105a || type == 0x4d38105a)
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outb(bmaddr_1 + 0x1f, inb(bmaddr_1 + 0x1f) | 0x01);
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/* Promise and HPT366 controllers support busmastering DMA */
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if (type == 0x4d33105a || type == 0x4d38105a || type == 0x00041103)
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printf("ata-pci%d: Busmastering DMA supported\n", unit);
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/* we dont know this controller, disable busmastering DMA */
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else {
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bmaddr_1 = bmaddr_2 = 0;
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printf("ata-pci%d: Busmastering DMA not supported\n", unit);
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}
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}
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/* now probe the addresse found for "real" ATA/ATAPI hardware */
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lun = 0;
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if (iobase_1 && ata_probe(iobase_1, altiobase_1, bmaddr_1, dev, &lun)) {
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scp = atadevices[lun];
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if (iobase_1 == IO_WD1)
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#ifdef __i386__
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inthand_add(device_get_nameunit(dev), irq1, ataintr, scp,
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&bio_imask, INTR_EXCL);
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#endif
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#ifdef __alpha__
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alpha_platform_setup_ide_intr(0, ataintr, scp);
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#endif
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else {
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struct resource *irq;
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int rid = 0;
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void *ih;
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if (!(irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
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RF_SHAREABLE | RF_ACTIVE)))
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printf("ata_pciattach: Unable to alloc interrupt\n");
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bus_setup_intr(dev, irq, INTR_TYPE_BIO, ataintr, scp, &ih);
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}
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printf("ata%d at 0x%04x irq %d on ata-pci%d\n",
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lun, iobase_1, isa_apic_irq(irq1), unit);
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}
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lun = 1;
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if (iobase_2 && ata_probe(iobase_2, altiobase_2, bmaddr_2, dev, &lun)) {
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scp = atadevices[lun];
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if (iobase_2 == IO_WD2)
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#ifdef __i386__
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inthand_add(device_get_nameunit(dev), irq2, ataintr, scp,
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&bio_imask, INTR_EXCL);
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#endif
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#ifdef __alpha__
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alpha_platform_setup_ide_intr(1, ataintr, scp);
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#endif
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else {
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struct resource *irq;
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int rid = 0;
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void *ih;
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if (!(irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
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RF_SHAREABLE | RF_ACTIVE)))
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printf("ata_pciattach: Unable to alloc interrupt\n");
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bus_setup_intr(dev, irq, INTR_TYPE_BIO, ataintr, scp, &ih);
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}
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printf("ata%d at 0x%04x irq %d on ata-pci%d\n",
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lun, iobase_2, isa_apic_irq(irq2), unit);
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}
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return 0;
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}
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static device_method_t ata_pci_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, ata_pciprobe),
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DEVMETHOD(device_attach, ata_pciattach),
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{ 0, 0 }
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};
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static driver_t ata_pci_driver = {
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"ata-pci",
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ata_pci_methods,
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sizeof(int),
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};
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DRIVER_MODULE(ata, pci, ata_pci_driver, ata_devclass, 0, 0);
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#endif
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static int32_t
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ata_probe(int32_t ioaddr, int32_t altioaddr, int32_t bmaddr,
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device_t dev, int32_t *unit)
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{
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struct ata_softc *scp;
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int32_t lun, mask = 0;
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u_int8_t status0, status1;
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if (atanlun > MAXATA) {
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printf("ata: unit out of range(%d)\n", atanlun);
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return 0;
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}
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/* check if this is located at one of the std addresses */
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if (ioaddr == IO_WD1)
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lun = 0;
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else if (ioaddr == IO_WD2)
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lun = 1;
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else
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lun = atanlun++;
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if ((scp = atadevices[lun])) {
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printf("ata%d: unit already attached\n", lun);
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return 0;
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}
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scp = malloc(sizeof(struct ata_softc), M_ATA, M_NOWAIT);
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if (scp == NULL) {
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printf("ata%d: failed to allocate driver storage\n", lun);
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return 0;
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}
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bzero(scp, sizeof(struct ata_softc));
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scp->ioaddr = ioaddr;
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scp->altioaddr = altioaddr;
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scp->lun = lun;
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scp->unit = *unit;
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scp->active = ATA_IDLE;
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if (bootverbose)
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printf("ata%d: iobase=0x%04x altiobase=0x%04x\n",
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scp->lun, scp->ioaddr, scp->altioaddr);
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/* do we have any signs of ATA/ATAPI HW being present ? */
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outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_MASTER);
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DELAY(1);
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status0 = inb(scp->ioaddr + ATA_STATUS);
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outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_SLAVE);
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DELAY(1);
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status1 = inb(scp->ioaddr + ATA_STATUS);
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if ((status0 & 0xf8) != 0xf8)
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mask |= 0x01;
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if ((status1 & 0xf8) != 0xf8)
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mask |= 0x02;
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if (bootverbose)
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printf("ata%d: mask=%02x status0=%02x status1=%02x\n",
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scp->lun, mask, status0, status1);
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if (!mask) {
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free(scp, M_DEVBUF);
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return 0;
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}
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ata_reset(scp, &mask);
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if (!mask) {
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free(scp, M_DEVBUF);
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return 0;
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}
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/*
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* OK, we have at least one device on the chain,
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* check for ATAPI signatures, if none check if its
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* a good old ATA device.
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*/
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outb(scp->ioaddr + ATA_DRIVE, (ATA_D_IBM | ATA_MASTER));
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DELAY(1);
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if (inb(scp->ioaddr + ATA_CYL_LSB) == ATAPI_MAGIC_LSB &&
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inb(scp->ioaddr + ATA_CYL_MSB) == ATAPI_MAGIC_MSB) {
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scp->devices |= ATA_ATAPI_MASTER;
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}
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outb(scp->ioaddr + ATA_DRIVE, (ATA_D_IBM | ATA_SLAVE));
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DELAY(1);
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if (inb(scp->ioaddr + ATA_CYL_LSB) == ATAPI_MAGIC_LSB &&
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inb(scp->ioaddr + ATA_CYL_MSB) == ATAPI_MAGIC_MSB) {
|
|
scp->devices |= ATA_ATAPI_SLAVE;
|
|
}
|
|
if (status0 != 0x00 && !(scp->devices & ATA_ATAPI_MASTER)) {
|
|
outb(scp->ioaddr + ATA_DRIVE, (ATA_D_IBM | ATA_MASTER));
|
|
DELAY(1);
|
|
outb(scp->ioaddr + ATA_ERROR, 0x58);
|
|
outb(scp->ioaddr + ATA_CYL_LSB, 0xa5);
|
|
if (inb(scp->ioaddr + ATA_ERROR) != 0x58 &&
|
|
inb(scp->ioaddr + ATA_CYL_LSB) == 0xa5) {
|
|
scp->devices |= ATA_ATA_MASTER;
|
|
}
|
|
}
|
|
if (status1 != 0x00 && !(scp->devices & ATA_ATAPI_SLAVE)) {
|
|
outb(scp->ioaddr + ATA_DRIVE, (ATA_D_IBM | ATA_SLAVE));
|
|
DELAY(1);
|
|
outb(scp->ioaddr + ATA_ERROR, 0x58);
|
|
outb(scp->ioaddr + ATA_CYL_LSB, 0xa5);
|
|
if (inb(scp->ioaddr + ATA_ERROR) != 0x58 &&
|
|
inb(scp->ioaddr + ATA_CYL_LSB) == 0xa5) {
|
|
scp->devices |= ATA_ATA_SLAVE;
|
|
}
|
|
}
|
|
if (bootverbose)
|
|
printf("ata%d: devices = 0x%x\n", scp->lun, scp->devices);
|
|
if (!scp->devices) {
|
|
free(scp, M_DEVBUF);
|
|
return 0;
|
|
}
|
|
TAILQ_INIT(&scp->ata_queue);
|
|
TAILQ_INIT(&scp->atapi_queue);
|
|
*unit = scp->lun;
|
|
scp->dev = dev;
|
|
if (bmaddr)
|
|
scp->bmaddr = bmaddr;
|
|
atadevices[scp->lun] = scp;
|
|
#if NAPM > 0
|
|
scp->resume_hook.ah_fun = (void *)ata_reinit;
|
|
scp->resume_hook.ah_arg = scp;
|
|
scp->resume_hook.ah_name = "ATA driver";
|
|
scp->resume_hook.ah_order = APM_MID_ORDER;
|
|
apm_hook_establish(APM_HOOK_RESUME, &scp->resume_hook);
|
|
#endif
|
|
return ATA_IOSIZE;
|
|
}
|
|
|
|
static void
|
|
ataintr(void *data)
|
|
{
|
|
struct ata_softc *scp =(struct ata_softc *)data;
|
|
|
|
/* is this interrupt really for this channel */
|
|
if (scp->flags & ATA_DMA_ACTIVE)
|
|
if (!(ata_dmastatus(scp) & ATA_BMSTAT_INTERRUPT))
|
|
return;
|
|
if ((scp->status = inb(scp->ioaddr + ATA_STATUS)) == ATA_S_BUSY) /*XXX SOS*/
|
|
return;
|
|
|
|
/* find & call the responsible driver to process this interrupt */
|
|
switch (scp->active) {
|
|
#if NATADISK > 0
|
|
case ATA_ACTIVE_ATA:
|
|
if (scp->running && (ad_interrupt(scp->running) == ATA_OP_CONTINUES))
|
|
return;
|
|
break;
|
|
#endif
|
|
#if NATAPICD > 0 || NATAPIFD > 0 || NATAPIST > 0
|
|
case ATA_ACTIVE_ATAPI:
|
|
if (scp->running && (atapi_interrupt(scp->running) == ATA_OP_CONTINUES))
|
|
return;
|
|
break;
|
|
#endif
|
|
case ATA_WAIT_INTR:
|
|
wakeup((caddr_t)scp);
|
|
break;
|
|
|
|
case ATA_REINITING:
|
|
return;
|
|
|
|
case ATA_IGNORE_INTR:
|
|
break;
|
|
|
|
default:
|
|
case ATA_IDLE:
|
|
#ifdef ATA_DEBUG
|
|
{
|
|
static int32_t intr_count = 0;
|
|
if (intr_count++ < 10)
|
|
printf("ata%d: unwanted interrupt %d status = %02x\n",
|
|
scp->lun, intr_count, scp->status);
|
|
}
|
|
#endif
|
|
return;
|
|
}
|
|
scp->active = ATA_IDLE;
|
|
scp->running = NULL;
|
|
ata_start(scp);
|
|
}
|
|
|
|
void
|
|
ata_start(struct ata_softc *scp)
|
|
{
|
|
struct ad_request *ad_request;
|
|
struct atapi_request *atapi_request;
|
|
|
|
#ifdef ATA_DEBUG
|
|
printf("ata_start: entered\n");
|
|
#endif
|
|
if (scp->active != ATA_IDLE)
|
|
return;
|
|
|
|
#if NATADISK > 0
|
|
/* find & call the responsible driver if anything on the ATA queue */
|
|
if ((ad_request = TAILQ_FIRST(&scp->ata_queue))) {
|
|
TAILQ_REMOVE(&scp->ata_queue, ad_request, chain);
|
|
scp->active = ATA_ACTIVE_ATA;
|
|
scp->running = ad_request;
|
|
ad_transfer(ad_request);
|
|
#ifdef ATA_DEBUG
|
|
printf("ata_start: started ata, leaving\n");
|
|
#endif
|
|
return;
|
|
}
|
|
#endif
|
|
#if NATAPICD > 0 || NATAPIFD > 0 || NATAPIST > 0
|
|
/*
|
|
* find & call the responsible driver if anything on the ATAPI queue.
|
|
* check for device busy by polling the DSC bit, if busy, check
|
|
* for requests to the other device on the channel (if any).
|
|
* if the other device is an ATA disk it already had its chance above.
|
|
* if no request can be served, timeout a call to ata_start.
|
|
*/
|
|
if ((atapi_request = TAILQ_FIRST(&scp->atapi_queue))) {
|
|
struct atapi_softc *atp = atapi_request->device;
|
|
static int32_t interval = 1;
|
|
|
|
if (atp->flags & ATAPI_F_DSC_USED) {
|
|
outb(atp->controller->ioaddr + ATA_DRIVE, ATA_D_IBM | atp->unit);
|
|
DELAY(1);
|
|
if (!(inb(atp->controller->ioaddr + ATA_STATUS) & ATA_S_DSC)) {
|
|
while ((atapi_request = TAILQ_NEXT(atapi_request, chain))) {
|
|
if (atapi_request->device->unit != atp->unit) {
|
|
struct atapi_softc *tmp = atapi_request->device;
|
|
|
|
outb(tmp->controller->ioaddr + ATA_DRIVE,
|
|
ATA_D_IBM | tmp->unit);
|
|
DELAY(1);
|
|
if (!inb(tmp->controller->ioaddr+ATA_STATUS)&ATA_S_DSC)
|
|
atapi_request = NULL;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (!atapi_request) {
|
|
timeout((timeout_t *)ata_start, atp->controller, interval++);
|
|
return;
|
|
}
|
|
else
|
|
interval = 1;
|
|
}
|
|
TAILQ_REMOVE(&scp->atapi_queue, atapi_request, chain);
|
|
scp->active = ATA_ACTIVE_ATAPI;
|
|
scp->running = atapi_request;
|
|
atapi_transfer(atapi_request);
|
|
#ifdef ATA_DEBUG
|
|
printf("ata_start: started atapi, leaving\n");
|
|
#endif
|
|
return;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void
|
|
ata_reset(struct ata_softc *scp, int32_t *mask)
|
|
{
|
|
int32_t timeout;
|
|
int8_t status0, status1;
|
|
|
|
/* reset channel */
|
|
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_MASTER);
|
|
DELAY(1);
|
|
inb(scp->ioaddr + ATA_STATUS);
|
|
outb(scp->altioaddr, ATA_A_IDS | ATA_A_RESET);
|
|
DELAY(10000);
|
|
outb(scp->altioaddr, ATA_A_IDS);
|
|
DELAY(10000);
|
|
inb(scp->ioaddr + ATA_ERROR);
|
|
DELAY(3000);
|
|
|
|
/* wait for BUSY to go inactive */
|
|
for (timeout = 0; timeout < 310000; timeout++) {
|
|
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_MASTER);
|
|
DELAY(1);
|
|
status0 = inb(scp->ioaddr + ATA_STATUS);
|
|
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_SLAVE);
|
|
DELAY(1);
|
|
status1 = inb(scp->ioaddr + ATA_STATUS);
|
|
if (*mask == 0x01) /* wait for master only */
|
|
if (!(status0 & ATA_S_BUSY))
|
|
break;
|
|
if (*mask == 0x02) /* wait for slave only */
|
|
if (!(status1 & ATA_S_BUSY))
|
|
break;
|
|
if (*mask == 0x03) /* wait for both master & slave */
|
|
if (!(status0 & ATA_S_BUSY) && !(status1 & ATA_S_BUSY))
|
|
break;
|
|
DELAY(100);
|
|
}
|
|
DELAY(1);
|
|
outb(scp->altioaddr, ATA_A_4BIT);
|
|
if (status0 & ATA_S_BUSY)
|
|
*mask &= ~0x01;
|
|
if (status1 & ATA_S_BUSY)
|
|
*mask &= ~0x02;
|
|
if (bootverbose)
|
|
printf("ata%d: mask=%02x status0=%02x status1=%02x\n",
|
|
scp->lun, *mask, status0, status1);
|
|
}
|
|
|
|
int32_t
|
|
ata_reinit(struct ata_softc *scp)
|
|
{
|
|
int32_t mask = 0, omask;
|
|
|
|
scp->active = ATA_REINITING;
|
|
scp->running = NULL;
|
|
printf("ata%d: resetting devices .. ", scp->lun);
|
|
if (scp->devices & (ATA_ATA_MASTER | ATA_ATAPI_MASTER))
|
|
mask |= 0x01;
|
|
if (scp->devices & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE))
|
|
mask |= 0x02;
|
|
omask = mask;
|
|
ata_reset(scp, &mask);
|
|
if (omask != mask)
|
|
printf(" device dissapeared! %d ", omask & ~mask);
|
|
|
|
#if NATADISK > 0
|
|
if (scp->devices & (ATA_ATA_MASTER) && scp->dev_softc[0])
|
|
ad_reinit((struct ad_softc *)scp->dev_softc[0]);
|
|
if (scp->devices & (ATA_ATA_SLAVE) && scp->dev_softc[1])
|
|
ad_reinit((struct ad_softc *)scp->dev_softc[1]);
|
|
#endif
|
|
#if NATAPICD > 0 || NATAPIFD > 0 || NATAPIST > 0
|
|
if (scp->devices & (ATA_ATAPI_MASTER) && scp->dev_softc[0])
|
|
atapi_reinit((struct atapi_softc *)scp->dev_softc[0]);
|
|
if (scp->devices & (ATA_ATAPI_SLAVE) && scp->dev_softc[1])
|
|
atapi_reinit((struct atapi_softc *)scp->dev_softc[1]);
|
|
#endif
|
|
printf("done\n");
|
|
scp->active = ATA_IDLE;
|
|
ata_start(scp);
|
|
return 0;
|
|
}
|
|
|
|
int32_t
|
|
ata_wait(struct ata_softc *scp, int32_t device, u_int8_t mask)
|
|
{
|
|
u_int8_t status;
|
|
u_int32_t timeout = 0;
|
|
|
|
while (timeout <= 5000000) { /* timeout 5 secs */
|
|
status = inb(scp->ioaddr + ATA_STATUS);
|
|
|
|
/* if drive fails status, reselect the drive just to be sure */
|
|
if (status == 0xff) {
|
|
printf("ata%d: %s: no status, reselecting device\n",
|
|
scp->lun, device?"slave":"master");
|
|
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | device);
|
|
DELAY(1);
|
|
status = inb(scp->ioaddr + ATA_STATUS);
|
|
}
|
|
if (status == 0xff)
|
|
return -1;
|
|
scp->status = status;
|
|
if (!(status & ATA_S_BUSY)) {
|
|
if (status & ATA_S_ERROR)
|
|
scp->error = inb(scp->ioaddr + ATA_ERROR);
|
|
if ((status & mask) == mask)
|
|
return (status & ATA_S_ERROR);
|
|
}
|
|
if (timeout > 1000) {
|
|
timeout += 1000;
|
|
DELAY(1000);
|
|
}
|
|
else {
|
|
timeout += 10;
|
|
DELAY(10);
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int32_t
|
|
ata_command(struct ata_softc *scp, int32_t device, u_int32_t command,
|
|
u_int32_t cylinder, u_int32_t head, u_int32_t sector,
|
|
u_int32_t count, u_int32_t feature, int32_t flags)
|
|
{
|
|
#ifdef ATA_DEBUG
|
|
printf("ata%d: ata_command: addr=%04x, device=%02x, cmd=%02x, "
|
|
"c=%d, h=%d, s=%d, count=%d, flags=%02x\n",
|
|
scp->lun, scp->ioaddr, device, command,
|
|
cylinder, head, sector, count, flags);
|
|
#endif
|
|
|
|
/* ready to issue command ? */
|
|
if (ata_wait(scp, device, 0) < 0) {
|
|
printf("ata%d-%s: timeout waiting to give command=%02x s=%02x e=%02x\n",
|
|
scp->lun, device ? "slave" : "master", command,
|
|
scp->status, scp->error);
|
|
return -1;
|
|
}
|
|
outb(scp->ioaddr + ATA_FEATURE, feature);
|
|
outb(scp->ioaddr + ATA_CYL_LSB, cylinder);
|
|
outb(scp->ioaddr + ATA_CYL_MSB, cylinder >> 8);
|
|
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | device | head);
|
|
outb(scp->ioaddr + ATA_SECTOR, sector);
|
|
outb(scp->ioaddr + ATA_COUNT, count);
|
|
|
|
switch (flags) {
|
|
case ATA_WAIT_INTR:
|
|
if (scp->active != ATA_IDLE)
|
|
printf("DANGER wait_intr active=%s\n", active2str(scp->active));
|
|
scp->active = ATA_WAIT_INTR;
|
|
outb(scp->ioaddr + ATA_CMD, command);
|
|
if (tsleep((caddr_t)scp, PRIBIO, "atacmd", 500)) {
|
|
printf("ata_command: timeout waiting for interrupt\n");
|
|
scp->active = ATA_IDLE;
|
|
return -1;
|
|
}
|
|
break;
|
|
|
|
case ATA_IGNORE_INTR:
|
|
if (scp->active != ATA_IDLE && scp->active != ATA_REINITING)
|
|
printf("DANGER ignore_intr active=%s\n", active2str(scp->active));
|
|
if (scp->active != ATA_REINITING)
|
|
scp->active = ATA_IGNORE_INTR;
|
|
outb(scp->ioaddr + ATA_CMD, command);
|
|
break;
|
|
|
|
case ATA_IMMEDIATE:
|
|
outb(scp->ioaddr + ATA_CMD, command);
|
|
break;
|
|
|
|
default:
|
|
printf("DANGER illegal interrupt flag=%s\n", active2str(flags));
|
|
}
|
|
#ifdef ATA_DEBUG
|
|
printf("ata_command: leaving\n");
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
int8_t *
|
|
ata_mode2str(int32_t mode)
|
|
{
|
|
switch (mode) {
|
|
case ATA_MODE_PIO:
|
|
return "PIO";
|
|
case ATA_MODE_WDMA2:
|
|
return "DMA";
|
|
case ATA_MODE_UDMA2:
|
|
return "UDMA33";
|
|
case ATA_MODE_UDMA3:
|
|
return "UDMA3";
|
|
case ATA_MODE_UDMA4:
|
|
return "UDMA66";
|
|
default:
|
|
return "???";
|
|
}
|
|
}
|
|
|
|
static int8_t *
|
|
active2str(int32_t active)
|
|
{
|
|
switch (active) {
|
|
case ATA_IDLE:
|
|
return("ATA_IDLE");
|
|
case ATA_WAIT_INTR:
|
|
return("ATA_WAIT_INTR");
|
|
case ATA_IGNORE_INTR:
|
|
return("ATA_IGNORE_INTR");
|
|
case ATA_ACTIVE_ATA:
|
|
return("ATA_ACTIVE_ATA");
|
|
case ATA_ACTIVE_ATAPI:
|
|
return("ATA_ACTIVE_ATAPI");
|
|
case ATA_REINITING:
|
|
return("ATA_REINITING");
|
|
default:
|
|
return("UNKNOWN");
|
|
}
|
|
}
|
|
|
|
void
|
|
bswap(int8_t *buf, int32_t len)
|
|
{
|
|
u_int16_t *p = (u_int16_t*)(buf + len);
|
|
|
|
while (--p >= (u_int16_t*)buf)
|
|
*p = ntohs(*p);
|
|
}
|
|
|
|
void
|
|
btrim(int8_t *buf, int32_t len)
|
|
{
|
|
int8_t *p;
|
|
|
|
for (p = buf; p < buf+len; ++p)
|
|
if (!*p)
|
|
*p = ' ';
|
|
for (p = buf + len - 1; p >= buf && *p == ' '; --p)
|
|
*p = 0;
|
|
}
|
|
|
|
void
|
|
bpack(int8_t *src, int8_t *dst, int32_t len)
|
|
{
|
|
int32_t i, j, blank;
|
|
|
|
for (i = j = blank = 0 ; i < len-1; i++) {
|
|
if (blank && src[i] == ' ') continue;
|
|
if (blank && src[i] != ' ') {
|
|
dst[j++] = src[i];
|
|
blank = 0;
|
|
continue;
|
|
}
|
|
if (src[i] == ' ') {
|
|
blank = 1;
|
|
if (i == 0)
|
|
continue;
|
|
}
|
|
dst[j++] = src[i];
|
|
}
|
|
dst[j] = 0x00;
|
|
}
|