748 lines
20 KiB
C
748 lines
20 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 1.11 1999/04/22 08:07:44 sos Exp $
|
|
*/
|
|
|
|
#include "ata.h"
|
|
#if NATA > 0
|
|
#include "isa.h"
|
|
#include "pci.h"
|
|
#include "atadisk.h"
|
|
#include "opt_global.h"
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/interrupt.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/module.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/buf.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/devicestat.h>
|
|
#include <vm/vm.h>
|
|
#include <vm/pmap.h>
|
|
#include <machine/resource.h>
|
|
#include <machine/bus.h>
|
|
#include <sys/rman.h>
|
|
#include <machine/clock.h>
|
|
#ifdef __i386__
|
|
#include <machine/smp.h>
|
|
#include <i386/isa/intr_machdep.h>
|
|
#endif
|
|
#include <pci/pcivar.h>
|
|
#include <pci/pcireg.h>
|
|
#include <isa/isavar.h>
|
|
#include <isa/isareg.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 */
|
|
#define MIN(a,b) ((a)>(b)?(b):(a))
|
|
#if SMP == 0
|
|
#define isa_apic_irq(x) x
|
|
#endif
|
|
|
|
/* prototypes */
|
|
#if NPCI > 0
|
|
static void promise_intr(void *);
|
|
#endif
|
|
static int32_t ata_probe(int32_t, int32_t, int32_t, device_t, int32_t *);
|
|
static void ataintr(void *);
|
|
|
|
static int32_t atanlun = 0;
|
|
struct ata_softc *atadevices[MAXATA];
|
|
static devclass_t ata_devclass;
|
|
|
|
#if NISA > 0
|
|
|
|
static int
|
|
ata_isaprobe(device_t dev)
|
|
{
|
|
struct resource *port;
|
|
int rid;
|
|
int32_t ctlr, res;
|
|
int32_t lun;
|
|
|
|
/* Allocate the port range */
|
|
rid = 0;
|
|
port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
|
|
if (!port)
|
|
return (ENOMEM);
|
|
|
|
for (ctlr = 0; ctlr < atanlun; ctlr++) {
|
|
if (atadevices[ctlr]->ioaddr == rman_get_start(port)) {
|
|
printf("ata-isa%d: already registered as ata%d\n",
|
|
device_get_unit(dev), ctlr);
|
|
bus_release_resource(dev, SYS_RES_IOPORT, 0, port);
|
|
return ENXIO;
|
|
}
|
|
}
|
|
|
|
lun = 0;
|
|
res = ata_probe(rman_get_start(port), rman_get_start(port) + ATA_ALTPORT,
|
|
0, dev, &lun);
|
|
|
|
bus_release_resource(dev, SYS_RES_IOPORT, 0, port);
|
|
|
|
if (res) {
|
|
isa_set_portsize(dev, res);
|
|
return 0;
|
|
}
|
|
|
|
return ENXIO;
|
|
}
|
|
|
|
static int
|
|
ata_isaattach(device_t dev)
|
|
{
|
|
struct ata_softc *scp;
|
|
struct resource *port;
|
|
struct resource *irq;
|
|
void *ih;
|
|
int rid;
|
|
|
|
/* Allocate the port range and interrupt */
|
|
rid = 0;
|
|
port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
|
|
if (!port)
|
|
return (ENOMEM);
|
|
|
|
rid = 0;
|
|
irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_ACTIVE);
|
|
if (!irq) {
|
|
bus_release_resource(dev, SYS_RES_IOPORT, 0, port);
|
|
return (ENOMEM);
|
|
}
|
|
scp = device_get_softc(dev);
|
|
return bus_setup_intr(dev, irq, INTR_TYPE_BIO, ataintr, scp, &ih);
|
|
}
|
|
|
|
static device_method_t ata_isa_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, ata_isaprobe),
|
|
DEVMETHOD(device_attach, ata_isaattach),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t ata_isa_driver = {
|
|
"ata-isa",
|
|
ata_isa_methods,
|
|
sizeof(int),
|
|
};
|
|
|
|
DRIVER_MODULE(ata, isa, ata_isa_driver, ata_devclass, 0, 0);
|
|
|
|
#endif
|
|
|
|
#if NPCI > 0
|
|
|
|
static const char *
|
|
ata_pcimatch(device_t dev)
|
|
{
|
|
u_int32_t data;
|
|
|
|
data = pci_read_config(dev, PCI_CLASS_REG, 4);
|
|
if (pci_get_class(dev) == PCIC_STORAGE &&
|
|
(pci_get_subclass(dev) == PCIS_STORAGE_IDE ||
|
|
pci_get_subclass(dev) == PCIS_STORAGE_RAID)) {
|
|
switch (pci_get_devid(dev)) {
|
|
case 0x12308086:
|
|
return "Intel PIIX IDE controller";
|
|
case 0x70108086:
|
|
return "Intel PIIX3 IDE controller";
|
|
case 0x71118086:
|
|
return "Intel PIIX4 IDE controller";
|
|
case 0x4d33105a:
|
|
return "Promise Ultra/33 IDE controller";
|
|
case 0x522910b9:
|
|
return "AcerLabs Aladdin IDE controller";
|
|
#if 0
|
|
case 0x05711106:
|
|
return "VIA Apollo IDE controller";
|
|
case 0x06401095:
|
|
return "CMD 640 IDE controller";
|
|
case 0x06461095:
|
|
return "CMD 646 IDE controller";
|
|
case 0xc6931080:
|
|
return "Cypress 82C693 IDE controller";
|
|
case 0x01021078:
|
|
return "Cyrix 5530 IDE controller";
|
|
#endif
|
|
default:
|
|
return "Unknown PCI IDE controller";
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static int
|
|
ata_pciprobe(device_t dev)
|
|
{
|
|
const char *desc = ata_pcimatch(dev);
|
|
if (desc) {
|
|
device_set_desc(dev, desc);
|
|
return 0;
|
|
}
|
|
else
|
|
return ENXIO;
|
|
}
|
|
|
|
static int
|
|
ata_pciattach(device_t dev)
|
|
{
|
|
int unit = device_get_unit(dev);
|
|
struct ata_softc *scp;
|
|
u_int32_t type;
|
|
u_int8_t class, subclass;
|
|
u_int32_t cmd;
|
|
int32_t iobase_1, iobase_2, altiobase_1, altiobase_2;
|
|
int32_t bmaddr_1 = 0, bmaddr_2 = 0, sysctrl = 0, irq1, irq2;
|
|
int32_t lun;
|
|
|
|
/* set up vendor-specific stuff */
|
|
type = pci_get_devid(dev);
|
|
class = pci_get_class(dev);
|
|
subclass = pci_get_subclass(dev);
|
|
cmd = pci_read_config(dev, PCIR_COMMAND, 4);
|
|
|
|
#ifdef ATA_DEBUG
|
|
printf("ata-pci%d: type=%08x class=%02x subclass=%02x cmd=%08x\n",
|
|
unit, type, class, subclass, cmd);
|
|
#endif
|
|
|
|
/* if this is a Promise controller handle it specially */
|
|
if (type == 0x4d33105a) {
|
|
iobase_1 = pci_read_config(dev, 0x10, 4) & 0xfffc;
|
|
altiobase_1 = pci_read_config(dev, 0x14, 4) & 0xfffc;
|
|
iobase_2 = pci_read_config(dev, 0x18, 4) & 0xfffc;
|
|
altiobase_2 = pci_read_config(dev, 0x1c, 4) & 0xfffc;
|
|
irq1 = irq2 = pci_read_config(dev, PCI_INTERRUPT_REG, 4) & 0xff;
|
|
bmaddr_1 = pci_read_config(dev, 0x20, 4) & 0xfffc;
|
|
bmaddr_2 = bmaddr_1 + ATA_BM_OFFSET1;
|
|
sysctrl = (pci_read_config(dev, 0x20, 4) & 0xfffc) + 0x1c;
|
|
outb(bmaddr_1 + 0x1f, inb(bmaddr_1 + 0x1f) | 0x01);
|
|
printf("ata-pci%d: Busmastering DMA supported\n", unit);
|
|
}
|
|
/* everybody else seems to do it this way */
|
|
else {
|
|
if ((unit == 0) &&
|
|
(pci_get_progif(dev) & PCIP_STORAGE_IDE_MODEPRIM) == 0) {
|
|
iobase_1 = IO_WD1;
|
|
altiobase_1 = iobase_1 + ATA_ALTPORT;
|
|
irq1 = 14;
|
|
}
|
|
else {
|
|
iobase_1 = pci_read_config(dev, 0x10, 4) & 0xfffc;
|
|
altiobase_1 = pci_read_config(dev, 0x14, 4) & 0xfffc;
|
|
irq1 = pci_read_config(dev, PCI_INTERRUPT_REG, 4) & 0xff;
|
|
}
|
|
if ((unit == 0) &&
|
|
(pci_get_progif(dev) & PCIP_STORAGE_IDE_MODESEC) == 0) {
|
|
iobase_2 = IO_WD2;
|
|
altiobase_2 = iobase_2 + ATA_ALTPORT;
|
|
irq2 = 15;
|
|
}
|
|
else {
|
|
iobase_2 = pci_read_config(dev, 0x18, 4) & 0xfffc;
|
|
altiobase_2 = pci_read_config(dev, 0x1c, 4) & 0xfffc;
|
|
irq2 = pci_read_config(dev, PCI_INTERRUPT_REG, 4) & 0xff;
|
|
}
|
|
|
|
/* is this controller busmaster capable ? */
|
|
if (pci_get_progif(dev) & PCIP_STORAGE_IDE_MASTERDEV) {
|
|
/* is busmastering support turned on ? */
|
|
if ((pci_read_config(dev, PCI_COMMAND_STATUS_REG, 4) & 5) == 5) {
|
|
/* is there a valid port range to connect to ? */
|
|
if ((bmaddr_1 = pci_read_config(dev, 0x20, 4) & 0xfffc)) {
|
|
bmaddr_2 = bmaddr_1 + ATA_BM_OFFSET1;
|
|
printf("ata-pci%d: Busmastering DMA supported\n", unit);
|
|
}
|
|
else
|
|
printf("ata-pci%d: Busmastering DMA not configured\n",unit);
|
|
}
|
|
else
|
|
printf("ata-pci%d: Busmastering DMA not enabled\n", unit);
|
|
}
|
|
else
|
|
printf("ata-pci%d: Busmastering DMA not supported\n", unit);
|
|
}
|
|
|
|
/* now probe the addresse found for "real" ATA/ATAPI hardware */
|
|
lun = 0;
|
|
if (ata_probe(iobase_1, altiobase_1, bmaddr_1, dev, &lun)) {
|
|
scp = atadevices[lun];
|
|
if (iobase_1 == IO_WD1)
|
|
#ifdef __i386__
|
|
inthand_add(device_get_nameunit(dev), irq1, ataintr, scp,
|
|
&bio_imask, INTR_EXCL);
|
|
#endif
|
|
#ifdef __alpha__
|
|
alpha_platform_setup_ide_intr(0, ataintr, scp);
|
|
#endif
|
|
else {
|
|
struct resource *irq;
|
|
int rid = 0;
|
|
void *ih;
|
|
|
|
irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0,1,RF_ACTIVE);
|
|
if (sysctrl)
|
|
bus_setup_intr(dev, irq, INTR_TYPE_BIO,
|
|
promise_intr, scp, &ih);
|
|
else
|
|
bus_setup_intr(dev, irq, INTR_TYPE_BIO,
|
|
ataintr, scp, &ih);
|
|
}
|
|
printf("ata%d at 0x%04x irq %d on ata-pci%d\n",
|
|
lun, iobase_1, isa_apic_irq(irq1), unit);
|
|
}
|
|
lun = 1;
|
|
if (ata_probe(iobase_2, altiobase_2, bmaddr_2, dev, &lun)) {
|
|
scp = atadevices[lun];
|
|
if (iobase_2 == IO_WD2)
|
|
#ifdef __i386__
|
|
inthand_add(device_get_nameunit(dev), irq2, ataintr, scp,
|
|
&bio_imask, INTR_EXCL);
|
|
#endif
|
|
#ifdef __alpha__
|
|
alpha_platform_setup_ide_intr(1, ataintr, scp);
|
|
#endif
|
|
else {
|
|
struct resource *irq;
|
|
int rid = 0;
|
|
void *ih;
|
|
|
|
irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0,1,RF_ACTIVE);
|
|
if (!sysctrl)
|
|
bus_setup_intr(dev, irq, INTR_TYPE_BIO, ataintr, scp, &ih);
|
|
}
|
|
printf("ata%d at 0x%04x irq %d on ata-pci%d\n",
|
|
lun, iobase_2, isa_apic_irq(irq2), unit);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static device_method_t ata_pci_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, ata_pciprobe),
|
|
DEVMETHOD(device_attach, ata_pciattach),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t ata_pci_driver = {
|
|
"ata-pci",
|
|
ata_pci_methods,
|
|
sizeof(int),
|
|
};
|
|
|
|
DRIVER_MODULE(ata, pci, ata_pci_driver, ata_devclass, 0, 0);
|
|
|
|
static void
|
|
promise_intr(void *data)
|
|
{
|
|
struct ata_softc *scp = (struct ata_softc *)data;
|
|
int32_t channel = inl((pci_read_config(scp->dev, 0x20, 4) & 0xfffc) + 0x1c);
|
|
|
|
if (channel & 0x00000400)
|
|
ataintr(data);
|
|
|
|
if (channel & 0x00004000)
|
|
ataintr(atadevices[scp->lun + 1]);
|
|
}
|
|
#endif
|
|
|
|
static int32_t
|
|
ata_probe(int32_t ioaddr, int32_t altioaddr, int32_t bmaddr,
|
|
device_t dev, 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 out 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 = *unit;
|
|
scp->lun = lun;
|
|
scp->ioaddr = ioaddr;
|
|
scp->altioaddr = altioaddr;
|
|
scp->active = ATA_IDLE;
|
|
|
|
#ifdef ATA_DEBUG
|
|
printf("ata%d: iobase=0x%04x altiobase=0x%04x\n",
|
|
scp->lun, 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->lun, 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);
|
|
DELAY(1);
|
|
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->lun, 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->lun, scp->devices);
|
|
#endif
|
|
if (!scp->devices) {
|
|
free(scp, M_DEVBUF);
|
|
return 0;
|
|
}
|
|
bufq_init(&scp->ata_queue);
|
|
TAILQ_INIT(&scp->atapi_queue);
|
|
*unit = scp->lun;
|
|
scp->dev = dev;
|
|
if (bmaddr)
|
|
scp->bmaddr = bmaddr;
|
|
atadevices[scp->lun] = scp;
|
|
#ifndef ATA_STATIC_ID
|
|
atanlun++;
|
|
#endif
|
|
return ATA_IOSIZE;
|
|
}
|
|
|
|
static void
|
|
ataintr(void *data)
|
|
{
|
|
struct ata_softc *scp;
|
|
struct atapi_request *atapi_request;
|
|
struct buf *ata_request;
|
|
u_int8_t status;
|
|
static int32_t intr_count = 0;
|
|
int unit;
|
|
|
|
scp = (struct ata_softc *)data;
|
|
unit = scp->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)))
|
|
if (ad_interrupt(ata_request) == ATA_OP_CONTINUES)
|
|
return;
|
|
break;
|
|
#endif
|
|
case ATA_ACTIVE_ATAPI:
|
|
if ((atapi_request = TAILQ_FIRST(&scp->atapi_queue)))
|
|
if (atapi_interrupt(atapi_request) == ATA_OP_CONTINUES)
|
|
return;
|
|
break;
|
|
|
|
case ATA_WAIT_INTR:
|
|
wakeup((caddr_t)scp);
|
|
break;
|
|
|
|
case ATA_IGNORE_INTR:
|
|
break;
|
|
|
|
default:
|
|
case ATA_IDLE:
|
|
status = inb(scp->ioaddr + ATA_STATUS);
|
|
if (intr_count++ < 10)
|
|
printf("ata%d: unwanted interrupt %d status = %02x\n",
|
|
unit, intr_count, status);
|
|
return;
|
|
}
|
|
scp->active = ATA_IDLE;
|
|
ata_start(scp);
|
|
}
|
|
|
|
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 != ATA_IDLE) {
|
|
printf("ata: unwanted ata_start\n");
|
|
return;
|
|
}
|
|
|
|
#if NATADISK > 0
|
|
/* 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);
|
|
#ifdef ATA_DEBUG
|
|
printf("ata_start: started ata, leaving\n");
|
|
#endif
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
/* 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);
|
|
#ifdef ATA_DEBUG
|
|
printf("ata_start: started atapi, leaving\n");
|
|
#endif
|
|
return;
|
|
}
|
|
}
|
|
|
|
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++ <= 500000) { /* 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_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, u_int32_t feature, int32_t flags)
|
|
{
|
|
#ifdef ATA_DEBUG
|
|
printf("ata_command: addr=%04x, device=%02x, cmd=%02x, c=%d, h=%d, s=%d, count=%d, flags=%02x\n", 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 s=%02x e=%02x\n",
|
|
scp->lun, device?"slave":"master", scp->status, scp->error);
|
|
}
|
|
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);
|
|
|
|
if (scp->active != ATA_IDLE && 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\n");
|
|
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;
|
|
}
|
|
#ifdef ATA_DEBUG
|
|
printf("ata_command: leaving\n");
|
|
#endif
|
|
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 /* NATA > 0 */
|