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freebsd-nq/sys/dev/ata/ata-all.c
Doug Rabson 81f4abc9c1 Don't match non-IDE devices in probe. 
Reviewed by: sos
1999-10-13 18:56:49 +00:00

897 lines
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/*-
* 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.
*
* $FreeBSD$
*/
#include "ata.h"
#include "apm.h"
#include "isa.h"
#include "pci.h"
#include "atadisk.h"
#include "atapicd.h"
#include "atapifd.h"
#include "atapist.h"
#include "opt_global.h"
#include "opt_ata.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/disk.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>
#if NPCI > 0
#include <pci/pcivar.h>
#include <pci/pcireg.h>
#endif
#include <isa/isavar.h>
#include <isa/isareg.h>
#include <machine/clock.h>
#ifdef __i386__
#include <machine/smp.h>
#include <i386/isa/intr_machdep.h>
#endif
#if NAPM > 0
#include <machine/apm_bios.h>
#endif
#include <dev/ata/ata-all.h>
#include <dev/ata/ata-disk.h>
#include <dev/ata/atapi-all.h>
/* misc defines */
#if SMP == 0
#define isa_apic_irq(x) x
#endif
/* prototypes */
static int32_t ata_probe(int32_t, int32_t, int32_t, device_t, int32_t *);
static void ataintr(void *);
static int8_t *active2str(int32_t);
/* local vars */
static int32_t atanlun = 2;
struct ata_softc *atadevices[MAXATA];
static devclass_t ata_devclass;
MALLOC_DEFINE(M_ATA, "ATA generic", "ATA driver generic layer");
#if NISA > 0
static struct isa_pnp_id ata_ids[] = {
{0x0006d041, "Generic ESDI/IDE/ATA controller"}, /* PNP0600 */
{0x0106d041, "Plus Hardcard II"}, /* PNP0601 */
{0x0206d041, "Plus Hardcard IIXL/EZ"}, /* PNP0602 */
{0x0306d041, "Generic ATA"}, /* PNP0603 */
{0}
};
static int
ata_isaprobe(device_t dev)
{
struct resource *port;
int rid;
int32_t ctlr, res;
int32_t lun;
/* Check isapnp ids */
if (ISA_PNP_PROBE(device_get_parent(dev), dev, ata_ids) == ENXIO)
return (ENXIO);
/* Allocate the port range */
rid = 0;
port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
if (!port)
return (ENOMEM);
/* check if allready in use by a PCI device */
for (ctlr = 0; ctlr < atanlun; ctlr++) {
if (atadevices[ctlr] && 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);
*(int *)device_get_softc(dev) = lun;
return 0;
}
return ENXIO;
}
static int
ata_isaattach(device_t dev)
{
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);
}
return bus_setup_intr(dev, irq, INTR_TYPE_BIO, ataintr,
atadevices[*(int *)device_get_softc(dev)], &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",
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)
{
if (pci_get_class(dev) != PCIC_STORAGE ||
(pci_get_subclass(dev) != PCIS_STORAGE_IDE))
return NULL;
switch (pci_get_devid(dev)) {
/* supported chipsets */
case 0x12308086:
return "Intel PIIX IDE controller";
case 0x70108086:
return "Intel PIIX3 IDE controller";
case 0x71118086:
return "Intel PIIX4 IDE controller";
case 0x522910b9:
return "AcerLabs Aladdin IDE controller";
case 0x4d33105a:
return "Promise Ultra/33 IDE controller";
case 0x4d38105a:
return "Promise Ultra/66 IDE controller";
case 0x00041103:
return "HighPoint HPT366 IDE controller";
/* unsupported but known chipsets, generic DMA only */
case 0x05711106: /* 82c586 */
case 0x05961106: /* 82c596 */
return "VIA Apollo IDE controller (generic mode)";
case 0x06401095:
return "CMD 640 IDE controller (generic mode)";
case 0x06461095:
return "CMD 646 IDE controller (generic mode)";
case 0xc6931080:
return "Cypress 82C693 IDE controller (generic mode)";
case 0x01021078:
return "Cyrix 5530 IDE controller (generic mode)";
default:
if (pci_get_class(dev) == PCIC_STORAGE &&
(pci_get_subclass(dev) == PCIS_STORAGE_IDE))
return "Unknown PCI IDE controller (generic mode)";
}
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, 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 if=%02x\n",
unit, type, class, subclass, cmd, pci_get_progif(dev));
#endif
if (pci_get_progif(dev) & PCIP_STORAGE_IDE_MASTERDEV) {
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;
bmaddr_1 = pci_read_config(dev, 0x20, 4) & 0xfffc;
irq1 = pci_read_config(dev, PCI_INTERRUPT_REG, 4) & 0xff;
}
if (pci_get_progif(dev) & PCIP_STORAGE_IDE_MASTERDEV) {
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;
bmaddr_2 = (pci_read_config(dev, 0x20, 4) & 0xfffc) + ATA_BM_OFFSET1;
irq2 = pci_read_config(dev, PCI_INTERRUPT_REG, 4) & 0xff;
}
/* is this controller busmaster DMA 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 {
/* the Promise controllers need this to support burst mode */
if (type == 0x4d33105a || type == 0x4d38105a)
outb(bmaddr_1 + 0x1f, inb(bmaddr_1 + 0x1f) | 0x01);
/* Promise and HPT366 controllers support busmastering DMA */
if (type == 0x4d33105a || type == 0x4d38105a || type == 0x00041103)
printf("ata-pci%d: Busmastering DMA supported\n", unit);
/* we dont know this controller, disable busmastering DMA */
else {
bmaddr_1 = bmaddr_2 = 0;
printf("ata-pci%d: Busmastering DMA not supported\n", unit);
}
}
/* now probe the addresse found for "real" ATA/ATAPI hardware */
lun = 0;
if (iobase_1 && 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;
if (!(irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
RF_SHAREABLE | RF_ACTIVE)))
printf("ata_pciattach: Unable to alloc interrupt\n");
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 (iobase_2 && 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;
if (!(irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
RF_SHAREABLE | RF_ACTIVE)))
printf("ata_pciattach: Unable to alloc interrupt\n");
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);
#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;
int32_t lun, mask = 0;
u_int8_t status0, status1;
if (atanlun > MAXATA) {
printf("ata: unit out of range(%d)\n", atanlun);
return 0;
}
/* check if this is located at one of the std addresses */
if (ioaddr == IO_WD1)
lun = 0;
else if (ioaddr == IO_WD2)
lun = 1;
else
lun = atanlun++;
if ((scp = atadevices[lun])) {
printf("ata%d: unit already attached\n", lun);
return 0;
}
scp = malloc(sizeof(struct ata_softc), M_ATA, M_NOWAIT);
if (scp == NULL) {
printf("ata%d: failed to allocate driver storage\n", lun);
return 0;
}
bzero(scp, sizeof(struct ata_softc));
scp->ioaddr = ioaddr;
scp->altioaddr = altioaddr;
scp->lun = lun;
scp->unit = *unit;
scp->active = ATA_IDLE;
if (bootverbose)
printf("ata%d: iobase=0x%04x altiobase=0x%04x\n",
scp->lun, scp->ioaddr, scp->altioaddr);
/* 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;
if (bootverbose)
printf("ata%d: mask=%02x status0=%02x status1=%02x\n",
scp->lun, mask, status0, status1);
if (!mask) {
free(scp, M_DEVBUF);
return 0;
}
ata_reset(scp, &mask);
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;
}
}
if (bootverbose)
printf("ata%d: devices = 0x%x\n", scp->lun, scp->devices);
if (!scp->devices) {
free(scp, M_DEVBUF);
return 0;
}
TAILQ_INIT(&scp->ata_queue);
TAILQ_INIT(&scp->atapi_queue);
*unit = scp->lun;
scp->dev = dev;
if (bmaddr)
scp->bmaddr = bmaddr;
atadevices[scp->lun] = scp;
#if NAPM > 0
scp->resume_hook.ah_fun = (void *)ata_reinit;
scp->resume_hook.ah_arg = scp;
scp->resume_hook.ah_name = "ATA driver";
scp->resume_hook.ah_order = APM_MID_ORDER;
apm_hook_establish(APM_HOOK_RESUME, &scp->resume_hook);
#endif
return ATA_IOSIZE;
}
static void
ataintr(void *data)
{
struct ata_softc *scp =(struct ata_softc *)data;
/* is this interrupt really for this channel */
if (scp->flags & ATA_DMA_ACTIVE)
if (!(ata_dmastatus(scp) & ATA_BMSTAT_INTERRUPT))
return;
if ((scp->status = inb(scp->ioaddr + ATA_STATUS)) == ATA_S_BUSY) /*XXX SOS*/
return;
/* find & call the responsible driver to process this interrupt */
switch (scp->active) {
#if NATADISK > 0
case ATA_ACTIVE_ATA:
if (scp->running && (ad_interrupt(scp->running) == ATA_OP_CONTINUES))
return;
break;
#endif
#if NATAPICD > 0 || NATAPIFD > 0 || NATAPIST > 0
case ATA_ACTIVE_ATAPI:
if (scp->running && (atapi_interrupt(scp->running) == ATA_OP_CONTINUES))
return;
break;
#endif
case ATA_WAIT_INTR:
wakeup((caddr_t)scp);
break;
case ATA_REINITING:
return;
case ATA_IGNORE_INTR:
break;
default:
case ATA_IDLE:
#ifdef ATA_DEBUG
{
static int32_t intr_count = 0;
if (intr_count++ < 10)
printf("ata%d: unwanted interrupt %d status = %02x\n",
scp->lun, intr_count, scp->status);
}
#endif
return;
}
scp->active = ATA_IDLE;
scp->running = NULL;
ata_start(scp);
}
void
ata_start(struct ata_softc *scp)
{
struct ad_request *ad_request;
struct atapi_request *atapi_request;
#ifdef ATA_DEBUG
printf("ata_start: entered\n");
#endif
if (scp->active != ATA_IDLE)
return;
#if NATADISK > 0
/* find & call the responsible driver if anything on the ATA queue */
if ((ad_request = TAILQ_FIRST(&scp->ata_queue))) {
TAILQ_REMOVE(&scp->ata_queue, ad_request, chain);
scp->active = ATA_ACTIVE_ATA;
scp->running = ad_request;
ad_transfer(ad_request);
#ifdef ATA_DEBUG
printf("ata_start: started ata, leaving\n");
#endif
return;
}
#endif
#if NATAPICD > 0 || NATAPIFD > 0 || NATAPIST > 0
/*
* find & call the responsible driver if anything on the ATAPI queue.
* check for device busy by polling the DSC bit, if busy, check
* for requests to the other device on the channel (if any).
* if the other device is an ATA disk it already had its chance above.
* if no request can be served, timeout a call to ata_start.
*/
if ((atapi_request = TAILQ_FIRST(&scp->atapi_queue))) {
struct atapi_softc *atp = atapi_request->device;
static int32_t interval = 1;
if (atp->flags & ATAPI_F_DSC_USED) {
outb(atp->controller->ioaddr + ATA_DRIVE, ATA_D_IBM | atp->unit);
DELAY(1);
if (!(inb(atp->controller->ioaddr + ATA_STATUS) & ATA_S_DSC)) {
while ((atapi_request = TAILQ_NEXT(atapi_request, chain))) {
if (atapi_request->device->unit != atp->unit) {
struct atapi_softc *tmp = atapi_request->device;
outb(tmp->controller->ioaddr + ATA_DRIVE,
ATA_D_IBM | tmp->unit);
DELAY(1);
if (!inb(tmp->controller->ioaddr+ATA_STATUS)&ATA_S_DSC)
atapi_request = NULL;
break;
}
}
}
if (!atapi_request) {
timeout((timeout_t *)ata_start, atp->controller, interval++);
return;
}
else
interval = 1;
}
TAILQ_REMOVE(&scp->atapi_queue, atapi_request, chain);
scp->active = ATA_ACTIVE_ATAPI;
scp->running = atapi_request;
atapi_transfer(atapi_request);
#ifdef ATA_DEBUG
printf("ata_start: started atapi, leaving\n");
#endif
return;
}
#endif
}
void
ata_reset(struct ata_softc *scp, int32_t *mask)
{
int32_t timeout;
int8_t status0, status1;
/* reset channel */
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_MASTER);
DELAY(1);
inb(scp->ioaddr + ATA_STATUS);
outb(scp->altioaddr, ATA_A_IDS | ATA_A_RESET);
DELAY(10000);
outb(scp->altioaddr, ATA_A_IDS);
DELAY(10000);
inb(scp->ioaddr + ATA_ERROR);
DELAY(3000);
/* wait for BUSY to go inactive */
for (timeout = 0; timeout < 310000; timeout++) {
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_MASTER);
DELAY(1);
status0 = inb(scp->ioaddr + ATA_STATUS);
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_SLAVE);
DELAY(1);
status1 = inb(scp->ioaddr + ATA_STATUS);
if (*mask == 0x01) /* wait for master only */
if (!(status0 & ATA_S_BUSY))
break;
if (*mask == 0x02) /* wait for slave only */
if (!(status1 & ATA_S_BUSY))
break;
if (*mask == 0x03) /* wait for both master & slave */
if (!(status0 & ATA_S_BUSY) && !(status1 & ATA_S_BUSY))
break;
DELAY(100);
}
DELAY(1);
outb(scp->altioaddr, ATA_A_4BIT);
if (status0 & ATA_S_BUSY)
*mask &= ~0x01;
if (status1 & ATA_S_BUSY)
*mask &= ~0x02;
if (bootverbose)
printf("ata%d: mask=%02x status0=%02x status1=%02x\n",
scp->lun, *mask, status0, status1);
}
int32_t
ata_reinit(struct ata_softc *scp)
{
int32_t mask = 0, omask;
scp->active = ATA_REINITING;
scp->running = NULL;
printf("ata%d: resetting devices .. ", scp->lun);
if (scp->devices & (ATA_ATA_MASTER | ATA_ATAPI_MASTER))
mask |= 0x01;
if (scp->devices & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE))
mask |= 0x02;
omask = mask;
ata_reset(scp, &mask);
if (omask != mask)
printf(" device dissapeared! %d ", omask & ~mask);
#if NATADISK > 0
if (scp->devices & (ATA_ATA_MASTER) && scp->dev_softc[0])
ad_reinit((struct ad_softc *)scp->dev_softc[0]);
if (scp->devices & (ATA_ATA_SLAVE) && scp->dev_softc[1])
ad_reinit((struct ad_softc *)scp->dev_softc[1]);
#endif
#if NATAPICD > 0 || NATAPIFD > 0 || NATAPIST > 0
if (scp->devices & (ATA_ATAPI_MASTER) && scp->dev_softc[0])
atapi_reinit((struct atapi_softc *)scp->dev_softc[0]);
if (scp->devices & (ATA_ATAPI_SLAVE) && scp->dev_softc[1])
atapi_reinit((struct atapi_softc *)scp->dev_softc[1]);
#endif
printf("done\n");
scp->active = ATA_IDLE;
ata_start(scp);
return 0;
}
int32_t
ata_wait(struct ata_softc *scp, int32_t device, u_int8_t mask)
{
u_int8_t status;
u_int32_t timeout = 0;
while (timeout <= 5000000) { /* timeout 5 secs */
status = inb(scp->ioaddr + ATA_STATUS);
/* if drive fails status, reselect the drive just to be sure */
if (status == 0xff) {
printf("ata%d: %s: no status, reselecting device\n",
scp->lun, device?"slave":"master");
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | device);
DELAY(1);
status = inb(scp->ioaddr + ATA_STATUS);
}
if (status == 0xff)
return -1;
scp->status = status;
if (!(status & ATA_S_BUSY)) {
if (status & ATA_S_ERROR)
scp->error = inb(scp->ioaddr + ATA_ERROR);
if ((status & mask) == mask)
return (status & ATA_S_ERROR);
}
if (timeout > 1000) {
timeout += 1000;
DELAY(1000);
}
else {
timeout += 10;
DELAY(10);
}
}
return -1;
}
int32_t
ata_command(struct ata_softc *scp, int32_t device, u_int32_t command,
u_int32_t cylinder, u_int32_t head, u_int32_t sector,
u_int32_t count, u_int32_t feature, int32_t flags)
{
#ifdef ATA_DEBUG
printf("ata%d: ata_command: addr=%04x, device=%02x, cmd=%02x, "
"c=%d, h=%d, s=%d, count=%d, flags=%02x\n",
scp->lun, scp->ioaddr, device, command,
cylinder, head, sector, count, flags);
#endif
/* ready to issue command ? */
if (ata_wait(scp, device, 0) < 0) {
printf("ata%d-%s: timeout waiting to give command=%02x s=%02x e=%02x\n",
scp->lun, device ? "slave" : "master", command,
scp->status, scp->error);
return -1;
}
outb(scp->ioaddr + ATA_FEATURE, feature);
outb(scp->ioaddr + ATA_CYL_LSB, cylinder);
outb(scp->ioaddr + ATA_CYL_MSB, cylinder >> 8);
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | device | head);
outb(scp->ioaddr + ATA_SECTOR, sector);
outb(scp->ioaddr + ATA_COUNT, count);
switch (flags) {
case ATA_WAIT_INTR:
if (scp->active != ATA_IDLE)
printf("DANGER wait_intr active=%s\n", active2str(scp->active));
scp->active = ATA_WAIT_INTR;
outb(scp->ioaddr + ATA_CMD, command);
if (tsleep((caddr_t)scp, PRIBIO, "atacmd", 500)) {
printf("ata_command: timeout waiting for interrupt\n");
scp->active = ATA_IDLE;
return -1;
}
break;
case ATA_IGNORE_INTR:
if (scp->active != ATA_IDLE && scp->active != ATA_REINITING)
printf("DANGER ignore_intr active=%s\n", active2str(scp->active));
if (scp->active != ATA_REINITING)
scp->active = ATA_IGNORE_INTR;
outb(scp->ioaddr + ATA_CMD, command);
break;
case ATA_IMMEDIATE:
outb(scp->ioaddr + ATA_CMD, command);
break;
default:
printf("DANGER illegal interrupt flag=%s\n", active2str(flags));
}
#ifdef ATA_DEBUG
printf("ata_command: leaving\n");
#endif
return 0;
}
int8_t *
ata_mode2str(int32_t mode)
{
switch (mode) {
case ATA_MODE_PIO:
return "PIO";
case ATA_MODE_WDMA2:
return "DMA";
case ATA_MODE_UDMA2:
return "UDMA33";
case ATA_MODE_UDMA3:
return "UDMA3";
case ATA_MODE_UDMA4:
return "UDMA66";
default:
return "???";
}
}
static int8_t *
active2str(int32_t active)
{
switch (active) {
case ATA_IDLE:
return("ATA_IDLE");
case ATA_WAIT_INTR:
return("ATA_WAIT_INTR");
case ATA_IGNORE_INTR:
return("ATA_IGNORE_INTR");
case ATA_ACTIVE_ATA:
return("ATA_ACTIVE_ATA");
case ATA_ACTIVE_ATAPI:
return("ATA_ACTIVE_ATAPI");
case ATA_REINITING:
return("ATA_REINITING");
default:
return("UNKNOWN");
}
}
void
bswap(int8_t *buf, int32_t len)
{
u_int16_t *p = (u_int16_t*)(buf + len);
while (--p >= (u_int16_t*)buf)
*p = ntohs(*p);
}
void
btrim(int8_t *buf, int32_t len)
{
int8_t *p;
for (p = buf; p < buf+len; ++p)
if (!*p)
*p = ' ';
for (p = buf + len - 1; p >= buf && *p == ' '; --p)
*p = 0;
}
void
bpack(int8_t *src, int8_t *dst, int32_t len)
{
int32_t i, j, blank;
for (i = j = blank = 0 ; i < len-1; i++) {
if (blank && src[i] == ' ') continue;
if (blank && src[i] != ' ') {
dst[j++] = src[i];
blank = 0;
continue;
}
if (src[i] == ' ') {
blank = 1;
if (i == 0)
continue;
}
dst[j++] = src[i];
}
dst[j] = 0x00;
}
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