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freebsd/sys/dev/ata/ata-all.c
Søren Schmidt b9bb98b32b Added driver to support ATAPI floppies ie LS-120 & ZIP drives.
Added "options ATA_STATIC_ID" that wires ATA disks like the old wd driver.

Fixed problems:

	Dont use more sectors/intr than the drive supports.
	Fix announce of > 8.4G disks.
	Dont call ad_interrupt/ad_transfer when no disks config'd.
	Use the right page# for CDR write mode params.
	Fix breakage when no PCI support in kernel.
	Implement DEVFS stuff.

General code clenaup.
1999-03-03 21:10:29 +00:00

662 lines
19 KiB
C

/*-
* Copyright (c) 1998,1999 Søren Schmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: ata-all.c,v 1.1 1999/03/01 21:19:18 sos Exp $
*/
#include "ata.h"
#if NATA > 0
#include "isa.h"
#include "pci.h"
#include "atadisk.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/interrupt.h>
#include <sys/conf.h>
#include <sys/buf.h>
#include <sys/malloc.h>
#include <sys/devicestat.h>
#include <machine/clock.h>
#include <pci/pcivar.h>
#include <pci/pcireg.h>
#include <i386/isa/icu.h>
#include <i386/isa/isa.h>
#include <i386/isa/isa_device.h>
#include <dev/ata/ata-all.h>
#include <dev/ata/ata-disk.h>
#include <dev/ata/atapi-all.h>
/* misc defines */
#define UNIT(dev) (dev>>3 & 0x1f) /* assume 8 minor # per unit */
/* prototypes */
#if NISA > 0
static int32_t ata_isaprobe(struct isa_device *);
static int32_t ata_isaattach(struct isa_device *);
#endif
#if NPCI > 0
static const char *ata_pciprobe(pcici_t, pcidi_t);
static void ata_pciattach(pcici_t, int32_t);
static void promise_intr(int32_t);
#endif
static int32_t ata_probe(int32_t, int32_t, int32_t *);
static int32_t ata_attach(int32_t);
static void ataintr(int32_t);
static int32_t ata_device_attach(struct ata_softc *, int32_t);
static int32_t atapi_device_attach(struct ata_softc *, int32_t);
static void bswap(int8_t *, int32_t);
static void btrim(int8_t *, int32_t);
static int32_t atanlun = 0, sysctrl = 0;
struct ata_softc *atadevices[MAXATA];
struct isa_driver atadriver = { ata_isaprobe, ata_isaattach, "ata" };
#if NISA > 0
static int32_t
ata_isaprobe(struct isa_device *devp)
{
int32_t ctlr, res;
for (ctlr = 0; ctlr < atanlun; ctlr++) {
if (atadevices[ctlr]->ioaddr == devp->id_iobase) {
printf("ata-isa%d: already registered as ata%d\n",
devp->id_unit, ctlr);
return 0;
}
}
res=ata_probe(devp->id_iobase, devp->id_iobase+ATA_ALTPORT, &devp->id_unit);
if (res)
devp->id_intr = (inthand2_t *)ataintr;
return res;
}
static int32_t
ata_isaattach(struct isa_device *devp)
{
return ata_attach(devp->id_unit);
}
#endif
#if NPCI > 0
static u_long ata_pcicount;
static struct pci_device ata_pcidevice = {
"ata-pci", ata_pciprobe, ata_pciattach, &ata_pcicount, 0
};
DATA_SET(pcidevice_set, ata_pcidevice);
static const char *
ata_pciprobe(pcici_t tag, pcidi_t type)
{
u_int32_t data;
data = pci_conf_read(tag, PCI_CLASS_REG);
if ((data & PCI_CLASS_MASK) == PCI_CLASS_MASS_STORAGE &&
((data & PCI_SUBCLASS_MASK) == 0x00010000 ||
((data & PCI_SUBCLASS_MASK) == 0x00040000))) {
switch (type) {
case 0x71118086:
return "Intel PIIX4 IDE controller";
case 0x70108086:
return "Intel PIIX3 IDE controller";
case 0x12308086:
return "Intel PIIX IDE controller";
case 0x4d33105a:
return "Promise Ultra/33 IDE controller";
case 0x05711106:
return "VIA Apollo IDE controller";
case 0x01021078:
return "Cyrix 5530 IDE controller";
case 0x522910b9:
return "Acer Aladdin IV/V IDE controller";
default:
return "Unknown PCI IDE controller";
}
}
return NULL;
}
static void
ata_pciattach(pcici_t tag, int32_t unit)
{
pcidi_t type, class, cmd;
int32_t iobase_1, iobase_2, altiobase_1, altiobase_2, irq1, irq2;
int32_t lun;
/* set up vendor-specific stuff */
type = pci_conf_read(tag, PCI_ID_REG);
class = pci_conf_read(tag, PCI_CLASS_REG);
cmd = pci_conf_read(tag, PCI_COMMAND_STATUS_REG);
#ifdef ATA_DEBUG
printf("ata: type=%08x class=%08x cmd=%08x\n", type, class, cmd);
#endif
switch (type) {
case 0x71118086:
case 0x70108086:
case 0x12308086: /* Intel PIIX, PIIX3, PIIX4 */
break;
case 0x05711106: /* VIA Apollo chipset family */
break;
case 0x4d33105a: /* Promise controllers */
break;
case 0x01021078: /* Cyrix 5530 */
break;
case 0x522910B9: /* Acer Aladdin IV/V (M5229) */
break;
default:
/* everybody else */
break;
}
if (type == 0x4d33105a) { /* the Promise is special */
iobase_1 = pci_conf_read(tag, 0x10) & 0xfffc;
altiobase_1 = pci_conf_read(tag, 0x14) & 0xfffc;
iobase_2 = pci_conf_read(tag, 0x18) & 0xfffc;
altiobase_2 = pci_conf_read(tag, 0x1c) & 0xfffc;
irq1 = irq2 = pci_conf_read(tag, PCI_INTERRUPT_REG) & 0xff;
sysctrl = (pci_conf_read(tag, 0x20) & 0xfffc) + 0x1c;
}
else {
if ((class & 0x100) == 0) {
iobase_1 = IO_WD1;
altiobase_1 = iobase_1 + ATA_ALTPORT;
irq1 = 14;
}
else {
iobase_1 = pci_conf_read(tag, 0x10) & 0xfffc;
altiobase_1 = pci_conf_read(tag, 0x14) & 0xfffc;
irq1 = pci_conf_read(tag, PCI_INTERRUPT_REG) & 0xff;
}
if ((class & 0x400) == 0) {
iobase_2 = IO_WD2;
altiobase_2 = iobase_2 + ATA_ALTPORT;
irq2 = 15;
}
else {
iobase_2 = pci_conf_read(tag, 0x18) & 0xfffc;
altiobase_2 = pci_conf_read(tag, 0x1c) & 0xfffc;
irq2 = pci_conf_read(tag, PCI_INTERRUPT_REG) & 0xff;
}
}
/* now probe the addresse found for "real" ATA/ATAPI hardware */
if (ata_probe(iobase_1, altiobase_1, &lun)) {
if (iobase_1 == IO_WD1)
register_intr(irq1, 0, 0, (inthand2_t *)ataintr, &bio_imask, lun);
else {
if (sysctrl)
pci_map_int(tag, (inthand2_t *)promise_intr,
(void *)lun, &bio_imask);
else
pci_map_int(tag, (inthand2_t *)ataintr, (void *)lun,&bio_imask);
}
printf("ata%d at 0x%04x irq %d on ata-pci%d\n",
lun, iobase_1, irq1, unit);
ata_attach(lun);
}
if (ata_probe(iobase_2, altiobase_2, &lun)) {
if (iobase_2 == IO_WD2)
register_intr(irq2, 0, 0, (inthand2_t *)ataintr, &bio_imask, lun);
else {
if (!sysctrl)
pci_map_int(tag, (inthand2_t *)ataintr, (void *)lun,&bio_imask);
}
printf("ata%d at 0x%04x irq %d on ata-pci%d\n",
lun, iobase_2, irq2, unit);
ata_attach(lun);
}
}
static void
promise_intr(int32_t unit)
{
if (inl(sysctrl) & 0x00000400)
ataintr(unit);
if (inl(sysctrl) & 0x00004000)
ataintr(unit+1);
}
#endif
static int32_t
ata_probe(int32_t ioaddr, int32_t altioaddr, int32_t *unit)
{
struct ata_softc *scp = atadevices[atanlun];
int32_t mask = 0;
int32_t timeout;
int32_t lun = atanlun;
u_int8_t status0, status1;
#ifdef ATA_STATIC_ID
atanlun++;
#endif
if (lun > MAXATA) {
printf("ata: unit of of range(%d)\n", lun);
return 0;
}
if (scp) {
printf("ata%d: unit already attached\n", lun);
return 0;
}
scp = malloc(sizeof(struct ata_softc), M_DEVBUF, M_NOWAIT);
if (scp == NULL) {
printf("ata%d: failed to allocate driver storage\n", lun);
return 0;
}
bzero(scp, sizeof(struct ata_softc));
scp->unit = lun;
scp->ioaddr = ioaddr;
scp->altioaddr = altioaddr;
#ifdef ATA_DEBUG
printf("ata%d: iobase=0x%04x altiobase=0x%04x\n",
scp->unit, scp->ioaddr, scp->altioaddr);
#endif
/* do we have any signs of ATA/ATAPI HW being present ? */
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 ((status0 & 0xf8) != 0xf8)
mask |= 0x01;
if ((status1 & 0xf8) != 0xf8)
mask |= 0x02;
#ifdef ATA_DEBUG
printf("ata%d: mask=%02x status0=%02x status1=%02x\n",
scp->unit, mask, status0, status1);
#endif
if (!mask) {
free(scp, M_DEVBUF);
return 0;
}
/* assert reset for devices and wait for completition */
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_MASTER);
DELAY(1);
outb(scp->altioaddr, ATA_A_IDS | ATA_A_RESET);
DELAY(1000);
outb(scp->altioaddr, ATA_A_IDS);
DELAY(1000);
inb(scp->ioaddr + ATA_ERROR);
outb(scp->altioaddr, ATA_A_4BIT);
DELAY(1);
/* wait for BUSY to go inactive */
for (timeout = 0; timeout < 30000*10; 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_BSY))
break;
if (mask == 0x02) /* wait for slave only */
if (!(status1 & ATA_S_BSY))
break;
if (mask == 0x03) /* wait for both master & slave */
if (!(status0 & ATA_S_BSY) && !(status1 & ATA_S_BSY))
break;
DELAY(100);
}
if (status0 & ATA_S_BSY)
mask &= ~0x01;
if (status1 & ATA_S_BSY)
mask &= ~0x02;
#ifdef ATA_DEBUG
printf("ata%d: mask=%02x status0=%02x status1=%02x\n",
scp->unit, mask, status0, status1);
#endif
if (!mask) {
free(scp, M_DEVBUF);
return 0;
}
/*
* OK, we have at least one device on the chain,
* check for ATAPI signatures, if none check if its
* a good old ATA device.
*/
outb(scp->ioaddr + ATA_DRIVE, (ATA_D_IBM | ATA_MASTER));
DELAY(1);
if (inb(scp->ioaddr + ATA_CYL_LSB) == ATAPI_MAGIC_LSB &&
inb(scp->ioaddr + ATA_CYL_MSB) == ATAPI_MAGIC_MSB) {
scp->devices |= ATA_ATAPI_MASTER;
}
outb(scp->ioaddr + ATA_DRIVE, (ATA_D_IBM | ATA_SLAVE));
DELAY(1);
if (inb(scp->ioaddr + ATA_CYL_LSB) == ATAPI_MAGIC_LSB &&
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;
}
}
#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 int32_t
ata_attach(int32_t unit)
{
struct ata_softc *scp;
if (unit > atanlun)
return 0;
scp = atadevices[unit];
if (scp->devices & ATA_ATA_MASTER)
if (ata_device_attach(scp, ATA_MASTER))
scp->devices &= ~ATA_ATA_MASTER;
if (scp->devices & ATA_ATA_SLAVE)
if (ata_device_attach(scp, ATA_SLAVE))
scp->devices &= ~ATA_ATA_SLAVE;
if (scp->devices & ATA_ATAPI_MASTER)
if (atapi_device_attach(scp, ATA_MASTER))
scp->devices &= ~ATA_ATAPI_MASTER;
if (scp->devices & ATA_ATAPI_SLAVE)
if (atapi_device_attach(scp, ATA_SLAVE))
scp->devices &= ~ATA_ATAPI_SLAVE;
return scp->devices;
}
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
printf("ataintr: entered unit=%d\n", unit);
#endif
if (unit < 0 || unit > atanlun) {
printf("ataintr: unit %d unusable\n", unit);
return;
}
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)))
ad_interrupt(ata_request);
break;
#endif
case ATA_ACTIVE_ATAPI:
if ((atapi_request = TAILQ_FIRST(&scp->atapi_queue)))
atapi_interrupt(atapi_request);
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;
}
static int32_t
ata_device_attach(struct ata_softc *scp, int32_t device)
{
struct ata_params *ata_parm;
int8_t buffer[DEV_BSIZE];
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | device);
if (ata_wait(scp, 0) < 0)
return -1;
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | device); /* XXX SOS */
scp->active = ATA_IGNORE_INTR;
outb(scp->ioaddr + ATA_CMD, ATA_C_ATA_IDENTIFY);
if (ata_wait(scp, ATA_S_DRDY | ATA_S_DSC | ATA_S_DRQ))
return -1;
insw(scp->ioaddr + ATA_DATA, buffer, sizeof(buffer)/sizeof(int16_t));
ata_parm = malloc(sizeof(struct ata_params), M_DEVBUF, M_NOWAIT);
if (!ata_parm)
return -1;
bcopy(buffer, ata_parm, sizeof(struct ata_params));
bswap(ata_parm->model, sizeof(ata_parm->model));
btrim(ata_parm->model, sizeof(ata_parm->model));
bswap(ata_parm->revision, sizeof(ata_parm->revision));
btrim(ata_parm->revision, sizeof(ata_parm->revision));
scp->ata_parm[device == ATA_SLAVE] = ata_parm;
return 0;
}
int32_t
atapi_wait(struct ata_softc *scp, u_int8_t mask)
{
u_int8_t status;
u_int32_t timeout = 0;
while (timeout++ <= 500000) { /* 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 & ATA_S_BSY))
break;
DELAY (10);
}
if (timeout <= 0)
return -1;
if (!mask)
return (status & ATA_S_ERROR);
/* Wait 50 msec for bits wanted. */
for (timeout=5000; timeout>0; --timeout) {
status = inb(scp->ioaddr + ATA_STATUS);
if ((status & mask) == mask)
return (status & ATA_S_ERROR);
DELAY (10);
}
return -1;
}
static int32_t
atapi_device_attach(struct ata_softc *scp, int32_t device)
{
struct atapi_params *atapi_parm;
int8_t buffer[DEV_BSIZE];
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | device);
if (atapi_wait(scp, 0) < 0)
return -1;
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | device); /* XXX SOS */
outb(scp->ioaddr + ATA_CMD, ATA_C_ATAPI_IDENTIFY);
if (atapi_wait(scp, ATA_S_DRQ))
return -1;
insw(scp->ioaddr + ATA_DATA, buffer, sizeof(buffer)/sizeof(int16_t));
atapi_parm = malloc(sizeof(struct atapi_params), M_DEVBUF, M_NOWAIT);
if (!atapi_parm)
return -1;
bcopy(buffer, atapi_parm, sizeof(struct atapi_params));
if (!((atapi_parm->model[0] == 'N' && atapi_parm->model[1] == 'E') ||
(atapi_parm->model[0] == 'F' && atapi_parm->model[1] == 'X')))
bswap(atapi_parm->model, sizeof(atapi_parm->model));
btrim(atapi_parm->model, sizeof(atapi_parm->model));
bswap(atapi_parm->revision, sizeof(atapi_parm->revision));
btrim(atapi_parm->revision, sizeof(atapi_parm->revision));
bswap(atapi_parm->serial, sizeof(atapi_parm->serial)); /* unused SOS */
btrim(atapi_parm->serial, sizeof(atapi_parm->serial)); /* unused SOS */
scp->atapi_parm[device == ATA_SLAVE] = atapi_parm;
return 0;
}
static 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);
}
static 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