mirror of
https://github.com/freebsd/freebsd-src
synced 2024-10-23 00:33:21 +00:00
989fb3947c
reports on those most welcome!
Fixed problems:
Hang on probe on "fantom" devices.
The probe now use a timeout to avoid hangs if no interrupt
is recevied.
There has also been more general code clenaups, and some reorgs.
591 lines
16 KiB
C
591 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 1.3 1999/03/05 09:43:30 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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scp->active = ATA_IDLE;
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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);
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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) {
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scp->devices |= ATA_ATA_MASTER;
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}
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}
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if (status1 != 0x00 && !(scp->devices & ATA_ATAPI_SLAVE)) {
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outb(scp->ioaddr + ATA_DRIVE, (ATA_D_IBM | ATA_SLAVE));
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DELAY(1);
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outb(scp->ioaddr + ATA_ERROR, 0x58);
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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) {
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scp->devices |= ATA_ATA_SLAVE;
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}
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}
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#ifdef ATA_DEBUG
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printf("ata%d: devices = 0x%x\n", scp->unit, scp->devices);
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#endif
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if (!(scp->devices & (ATA_ATA_MASTER|ATA_ATAPI_MASTER)))
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scp->flags |= ATA_F_SLAVE_ONLY;
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if (!scp->devices) {
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free(scp, M_DEVBUF);
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return 0;
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}
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bufq_init(&scp->ata_queue);
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TAILQ_INIT(&scp->atapi_queue);
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*unit = scp->unit;
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atadevices[scp->unit] = scp;
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#ifndef ATA_STATIC_ID
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atanlun++;
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#endif
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return ATA_IOSIZE;
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}
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static void
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ataintr(int32_t unit)
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{
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struct ata_softc *scp;
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struct atapi_request *atapi_request;
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struct buf *ata_request;
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static int32_t intcount = 0;
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#ifdef ATA_DEBUG
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printf("ataintr: entered unit=%d\n", unit);
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#endif
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if (unit < 0 || unit > atanlun) {
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printf("ataintr: unit %d unusable\n", unit);
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return;
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}
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scp = atadevices[unit];
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/* find & call the responsible driver to process this interrupt */
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switch (scp->active) {
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#if NATADISK > 0
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case ATA_ACTIVE_ATA:
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if ((ata_request = bufq_first(&scp->ata_queue)))
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if (ad_interrupt(ata_request) == ATA_OP_CONTINUES)
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return;
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break;
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#endif
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case ATA_ACTIVE_ATAPI:
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if ((atapi_request = TAILQ_FIRST(&scp->atapi_queue)))
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if (atapi_interrupt(atapi_request) == ATA_OP_CONTINUES)
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return;
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break;
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case ATA_WAIT_INTR:
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wakeup((caddr_t)scp);
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break;
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case ATA_IGNORE_INTR:
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break;
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default:
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case ATA_IDLE:
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if (intcount++ < 5)
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printf("ata%d: unwanted interrupt\n", unit);
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return;
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}
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scp->active = ATA_IDLE;
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ata_start(scp);
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}
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void
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ata_start(struct ata_softc *scp)
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{
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struct buf *ata_request;
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struct atapi_request *atapi_request;
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|
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#ifdef ATA_DEBUG
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printf("ata_start: entered\n");
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#endif
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if (scp->active) {
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printf("ata: unwanted ata_start\n");
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return;
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}
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|
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/* find & call the responsible driver if anything on ATA queue */
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if ((ata_request = bufq_first(&scp->ata_queue))) {
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scp->active = ATA_ACTIVE_ATA;
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ad_transfer(ata_request);
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}
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|
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/* find & call the responsible driver if anything on ATAPI queue */
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if ((atapi_request = TAILQ_FIRST(&scp->atapi_queue))) {
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scp->active = ATA_ACTIVE_ATAPI;
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atapi_transfer(atapi_request);
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}
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}
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|
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|
int32_t
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ata_wait(struct ata_softc *scp, u_int8_t mask)
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|
{
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u_int8_t status;
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u_int32_t timeout = 0;
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|
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while (timeout++ <= 50000) { /* timeout 5 secs */
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status = inb(scp->ioaddr + ATA_STATUS);
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if ((status == 0xff) && (scp->flags & ATA_F_SLAVE_ONLY)) {
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outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_SLAVE);
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DELAY(1);
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status = inb(scp->ioaddr + ATA_STATUS);
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}
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if (status == 0xff)
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return -1;
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scp->status = status;
|
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if (!(status & ATA_S_BSY)) {
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|
if (status & ATA_S_ERROR)
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scp->error = inb(scp->ioaddr + ATA_ERROR);
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if ((status & mask) == mask)
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return (status & ATA_S_ERROR);
|
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}
|
|
if (timeout > 1000)
|
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DELAY(1000);
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else
|
|
DELAY(10);
|
|
}
|
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return -1;
|
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}
|
|
|
|
int32_t
|
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ata_command(struct ata_softc *scp, int32_t device, u_int32_t command,
|
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u_int32_t cylinder, u_int32_t head, u_int32_t sector,
|
|
u_int32_t count, int32_t flags)
|
|
{
|
|
/* ready to issue command ? */
|
|
if (ata_wait(scp, 0) < 0) {
|
|
printf("ata_command: timeout waiting to give command");
|
|
return -1;
|
|
}
|
|
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | device | head);
|
|
outb(scp->ioaddr + ATA_PRECOMP, 0); /* no precompensation */
|
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outb(scp->ioaddr + ATA_CYL_LSB, cylinder);
|
|
outb(scp->ioaddr + ATA_CYL_MSB, cylinder >> 8);
|
|
outb(scp->ioaddr + ATA_SECTOR, sector);
|
|
outb(scp->ioaddr + ATA_COUNT, count);
|
|
|
|
if (scp->active && flags != ATA_IMMEDIATE)
|
|
printf("DANGER active=%d\n", scp->active);
|
|
|
|
switch (flags) {
|
|
case ATA_WAIT_INTR:
|
|
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");
|
|
scp->active = ATA_IDLE;
|
|
return -1;
|
|
}
|
|
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
|