2e526e2ac0
interrupts are enabled, this kills the last "unwanted interrupts"
(and there is no ugly hacks like in the old driver to avoid them).
COmmand interrupt devices are now supported, this applies mostly
to older CDROM's and apparently also the ZIP.
Fixed problems:
Number of total sectors wrong on some older drives.
Fixed by not using the LBA size unless we know its valid.
There has also been more general code clenaups, some reorgs also.
581 lines
16 KiB
C
581 lines
16 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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* $Id: ata-all.c,v 1.2 1999/03/03 21:10:29 sos Exp $
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*/
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#include "ata.h"
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#if NATA > 0
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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 <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/interrupt.h>
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#include <sys/conf.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 <machine/clock.h>
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#include <pci/pcivar.h>
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#include <pci/pcireg.h>
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#include <i386/isa/icu.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/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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#define UNIT(dev) (dev>>3 & 0x1f) /* assume 8 minor # per unit */
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/* prototypes */
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#if NISA > 0
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static int32_t ata_isaprobe(struct isa_device *);
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static int32_t ata_isaattach(struct isa_device *);
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#endif
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#if NPCI > 0
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static const char *ata_pciprobe(pcici_t, pcidi_t);
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static void ata_pciattach(pcici_t, int32_t);
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static void promise_intr(int32_t);
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#endif
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static int32_t ata_probe(int32_t, int32_t, int32_t *);
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static void ataintr(int32_t);
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static int32_t atanlun = 0, sysctrl = 0;
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struct ata_softc *atadevices[MAXATA];
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struct isa_driver atadriver = { ata_isaprobe, ata_isaattach, "ata" };
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#if NISA > 0
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static int32_t
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ata_isaprobe(struct isa_device *devp)
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{
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int32_t ctlr, res;
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for (ctlr = 0; ctlr < atanlun; ctlr++) {
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if (atadevices[ctlr]->ioaddr == devp->id_iobase) {
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printf("ata-isa%d: already registered as ata%d\n",
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devp->id_unit, ctlr);
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return 0;
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}
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}
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res=ata_probe(devp->id_iobase, devp->id_iobase+ATA_ALTPORT, &devp->id_unit);
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if (res)
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devp->id_intr = (inthand2_t *)ataintr;
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return res;
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}
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static int32_t
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ata_isaattach(struct isa_device *devp)
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{
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return 1;
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}
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#endif
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#if NPCI > 0
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static u_long ata_pcicount;
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static struct pci_device ata_pcidevice = {
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"ata-pci", ata_pciprobe, ata_pciattach, &ata_pcicount, 0
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};
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DATA_SET(pcidevice_set, ata_pcidevice);
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static const char *
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ata_pciprobe(pcici_t tag, pcidi_t type)
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{
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u_int32_t data;
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data = pci_conf_read(tag, PCI_CLASS_REG);
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if ((data & PCI_CLASS_MASK) == PCI_CLASS_MASS_STORAGE &&
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((data & PCI_SUBCLASS_MASK) == 0x00010000 ||
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((data & PCI_SUBCLASS_MASK) == 0x00040000))) {
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switch (type) {
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case 0x71118086:
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return "Intel PIIX4 IDE controller";
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case 0x70108086:
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return "Intel PIIX3 IDE controller";
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case 0x12308086:
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return "Intel PIIX IDE controller";
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case 0x4d33105a:
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return "Promise Ultra/33 IDE controller";
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case 0x05711106:
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return "VIA Apollo IDE controller";
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case 0x01021078:
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return "Cyrix 5530 IDE controller";
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case 0x522910b9:
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return "Acer Aladdin IV/V IDE controller";
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default:
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return "Unknown PCI IDE controller";
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}
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}
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return NULL;
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}
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static void
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ata_pciattach(pcici_t tag, int32_t unit)
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{
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pcidi_t type, class, cmd;
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int32_t iobase_1, iobase_2, altiobase_1, altiobase_2, irq1, irq2;
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int32_t lun;
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/* set up vendor-specific stuff */
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type = pci_conf_read(tag, PCI_ID_REG);
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class = pci_conf_read(tag, PCI_CLASS_REG);
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cmd = pci_conf_read(tag, PCI_COMMAND_STATUS_REG);
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#ifdef ATA_DEBUG
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printf("ata: type=%08x class=%08x cmd=%08x\n", type, class, cmd);
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#endif
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switch (type) {
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case 0x71118086:
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case 0x70108086:
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case 0x12308086: /* Intel PIIX, PIIX3, PIIX4 */
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break;
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case 0x05711106: /* VIA Apollo chipset family */
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break;
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case 0x4d33105a: /* Promise controllers */
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break;
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case 0x01021078: /* Cyrix 5530 */
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break;
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case 0x522910B9: /* Acer Aladdin IV/V (M5229) */
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break;
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default:
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/* everybody else */
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break;
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}
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if (type == 0x4d33105a) { /* the Promise is special */
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iobase_1 = pci_conf_read(tag, 0x10) & 0xfffc;
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altiobase_1 = pci_conf_read(tag, 0x14) & 0xfffc;
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iobase_2 = pci_conf_read(tag, 0x18) & 0xfffc;
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altiobase_2 = pci_conf_read(tag, 0x1c) & 0xfffc;
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irq1 = irq2 = pci_conf_read(tag, PCI_INTERRUPT_REG) & 0xff;
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sysctrl = (pci_conf_read(tag, 0x20) & 0xfffc) + 0x1c;
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}
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else {
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if ((class & 0x100) == 0) {
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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_conf_read(tag, 0x10) & 0xfffc;
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altiobase_1 = pci_conf_read(tag, 0x14) & 0xfffc;
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irq1 = pci_conf_read(tag, PCI_INTERRUPT_REG) & 0xff;
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}
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if ((class & 0x400) == 0) {
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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_conf_read(tag, 0x18) & 0xfffc;
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altiobase_2 = pci_conf_read(tag, 0x1c) & 0xfffc;
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irq2 = pci_conf_read(tag, PCI_INTERRUPT_REG) & 0xff;
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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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if (ata_probe(iobase_1, altiobase_1, &lun)) {
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if (iobase_1 == IO_WD1)
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register_intr(irq1, 0, 0, (inthand2_t *)ataintr, &bio_imask, lun);
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else {
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if (sysctrl)
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pci_map_int(tag, (inthand2_t *)promise_intr,
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(void *)lun, &bio_imask);
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else
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pci_map_int(tag, (inthand2_t *)ataintr, (void *)lun,&bio_imask);
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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, irq1, unit);
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}
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if (ata_probe(iobase_2, altiobase_2, &lun)) {
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if (iobase_2 == IO_WD2)
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register_intr(irq2, 0, 0, (inthand2_t *)ataintr, &bio_imask, lun);
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else {
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if (!sysctrl)
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pci_map_int(tag, (inthand2_t *)ataintr, (void *)lun,&bio_imask);
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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, irq2, unit);
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}
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}
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static void
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promise_intr(int32_t unit)
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{
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if (inl(sysctrl) & 0x00000400)
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ataintr(unit);
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if (inl(sysctrl) & 0x00004000)
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ataintr(unit+1);
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}
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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 *unit)
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{
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struct ata_softc *scp = atadevices[atanlun];
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int32_t mask = 0;
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int32_t timeout;
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int32_t lun = atanlun;
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u_int8_t status0, status1;
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#ifdef ATA_STATIC_ID
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atanlun++;
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#endif
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if (lun > MAXATA) {
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printf("ata: unit of of range(%d)\n", lun);
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return 0;
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}
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if (scp) {
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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_DEVBUF, 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->unit = lun;
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scp->ioaddr = ioaddr;
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scp->altioaddr = altioaddr;
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#ifdef ATA_DEBUG
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printf("ata%d: iobase=0x%04x altiobase=0x%04x\n",
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scp->unit, scp->ioaddr, scp->altioaddr);
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#endif
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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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#ifdef ATA_DEBUG
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printf("ata%d: mask=%02x status0=%02x status1=%02x\n",
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scp->unit, mask, status0, status1);
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#endif
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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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/* assert reset for devices and wait for completition */
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outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_MASTER);
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DELAY(1);
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outb(scp->altioaddr, ATA_A_IDS | ATA_A_RESET);
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DELAY(1000);
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outb(scp->altioaddr, ATA_A_IDS);
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DELAY(1000);
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inb(scp->ioaddr + ATA_ERROR);
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outb(scp->altioaddr, ATA_A_4BIT);
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DELAY(1);
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/* wait for BUSY to go inactive */
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for (timeout = 0; timeout < 30000*10; timeout++) {
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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 (mask == 0x01) /* wait for master only */
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if (!(status0 & ATA_S_BSY))
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break;
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if (mask == 0x02) /* wait for slave only */
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if (!(status1 & ATA_S_BSY))
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break;
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if (mask == 0x03) /* wait for both master & slave */
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if (!(status0 & ATA_S_BSY) && !(status1 & ATA_S_BSY))
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break;
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DELAY(100);
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}
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if (status0 & ATA_S_BSY)
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mask &= ~0x01;
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if (status1 & ATA_S_BSY)
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mask &= ~0x02;
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#ifdef ATA_DEBUG
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printf("ata%d: mask=%02x status0=%02x status1=%02x\n",
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scp->unit, mask, status0, status1);
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#endif
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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) {
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scp->devices |= ATA_ATAPI_SLAVE;
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}
|
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if (status0 != 0x00 && !(scp->devices & ATA_ATAPI_MASTER)) {
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outb(scp->ioaddr + ATA_DRIVE, (ATA_D_IBM | ATA_MASTER));
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DELAY(1);
|
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outb(scp->ioaddr + ATA_ERROR, 0x58);
|
|
outb(scp->ioaddr + ATA_CYL_LSB, 0xa5);
|
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if (inb(scp->ioaddr + ATA_ERROR) != 0x58 &&
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|
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 &&
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|
inb(scp->ioaddr + ATA_CYL_LSB) == 0xa5) {
|
|
scp->devices |= ATA_ATA_SLAVE;
|
|
}
|
|
}
|
|
#ifdef ATA_DEBUG
|
|
printf("ata%d: devices = 0x%x\n", scp->unit, scp->devices);
|
|
#endif
|
|
if (!(scp->devices & (ATA_ATA_MASTER|ATA_ATAPI_MASTER)))
|
|
scp->flags |= ATA_F_SLAVE_ONLY;
|
|
if (!scp->devices) {
|
|
free(scp, M_DEVBUF);
|
|
return 0;
|
|
}
|
|
bufq_init(&scp->ata_queue);
|
|
TAILQ_INIT(&scp->atapi_queue);
|
|
*unit = scp->unit;
|
|
atadevices[scp->unit] = scp;
|
|
#ifndef ATA_STATIC_ID
|
|
atanlun++;
|
|
#endif
|
|
return ATA_IOSIZE;
|
|
}
|
|
|
|
static void
|
|
ataintr(int32_t unit)
|
|
{
|
|
struct ata_softc *scp;
|
|
struct atapi_request *atapi_request;
|
|
struct buf *ata_request;
|
|
|
|
static int32_t intcount = 0;
|
|
|
|
#ifdef ATA_DEBUG
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|
printf("ataintr: entered unit=%d\n", unit);
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|
#endif
|
|
if (unit < 0 || unit > atanlun) {
|
|
printf("ataintr: unit %d unusable\n", unit);
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|
return;
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|
}
|
|
|
|
scp = atadevices[unit];
|
|
|
|
/* find & call the responsible driver to process this interrupt */
|
|
switch (scp->active) {
|
|
#if NATADISK > 0
|
|
case ATA_ACTIVE_ATA:
|
|
if ((ata_request = bufq_first(&scp->ata_queue)))
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ad_interrupt(ata_request);
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|
break;
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|
#endif
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|
case ATA_ACTIVE_ATAPI:
|
|
if ((atapi_request = TAILQ_FIRST(&scp->atapi_queue)))
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|
atapi_interrupt(atapi_request);
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|
break;
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|
|
|
case ATA_WAIT_INTR:
|
|
wakeup((caddr_t)scp);
|
|
scp->active = ATA_IDLE;
|
|
break;
|
|
|
|
case ATA_IGNORE_INTR:
|
|
scp->active = ATA_IDLE;
|
|
break;
|
|
|
|
default:
|
|
case ATA_IDLE:
|
|
if (intcount++ < 5)
|
|
printf("ata%d: unwanted interrupt\n", unit);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
ata_start(struct ata_softc *scp)
|
|
{
|
|
struct buf *ata_request;
|
|
struct atapi_request *atapi_request;
|
|
|
|
#ifdef ATA_DEBUG
|
|
printf("ata_start: entered\n");
|
|
#endif
|
|
if (scp->active) {
|
|
printf("ata: unwanted ata_start\n");
|
|
return;
|
|
}
|
|
|
|
/* find & call the responsible driver if anything on ATA queue */
|
|
if ((ata_request = bufq_first(&scp->ata_queue))) {
|
|
scp->active = ATA_ACTIVE_ATA;
|
|
ad_transfer(ata_request);
|
|
}
|
|
|
|
/* find & call the responsible driver if anything on ATAPI queue */
|
|
if ((atapi_request = TAILQ_FIRST(&scp->atapi_queue))) {
|
|
scp->active = ATA_ACTIVE_ATAPI;
|
|
atapi_transfer(atapi_request);
|
|
}
|
|
}
|
|
|
|
int32_t
|
|
ata_wait(struct ata_softc *scp, u_int8_t mask)
|
|
{
|
|
u_int8_t status;
|
|
u_int32_t timeout = 0;
|
|
|
|
while (timeout++ <= 50000) { /* timeout 5 secs */
|
|
status = inb(scp->ioaddr + ATA_STATUS);
|
|
if ((status == 0xff) && (scp->flags & ATA_F_SLAVE_ONLY)) {
|
|
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_SLAVE);
|
|
status = inb(scp->ioaddr + ATA_STATUS);
|
|
}
|
|
if (status == 0xff)
|
|
return -1;
|
|
scp->status = status;
|
|
if (!(status & ATA_S_BSY)) {
|
|
if (status & ATA_S_ERROR)
|
|
scp->error = inb(scp->ioaddr + ATA_ERROR);
|
|
if ((status & mask) == mask)
|
|
return (status & ATA_S_ERROR);
|
|
}
|
|
if (timeout > 1000)
|
|
DELAY(1000);
|
|
else
|
|
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, int32_t flags)
|
|
{
|
|
/* ready to issue command ? */
|
|
while (ata_wait(scp, 0) < 0) {
|
|
printf("ad_transfer: timeout waiting to give command");
|
|
return -1;
|
|
}
|
|
|
|
outb(scp->ioaddr + ATA_PRECOMP, 0); /* no precompensation */
|
|
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:
|
|
scp->active = ATA_WAIT_INTR;
|
|
outb(scp->ioaddr + ATA_CMD, command);
|
|
tsleep((caddr_t)scp, PRIBIO, "atacmd", 0);
|
|
break;
|
|
|
|
case ATA_IGNORE_INTR:
|
|
scp->active = ATA_IGNORE_INTR;
|
|
outb(scp->ioaddr + ATA_CMD, command);
|
|
break;
|
|
|
|
case ATA_IMMEDIATE:
|
|
default:
|
|
outb(scp->ioaddr + ATA_CMD, command);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
dst[j++] = src[i];
|
|
}
|
|
dst[j] = 0x00;
|
|
}
|
|
#endif
|