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freebsd-dev/sys/dev/ata/ata-pci.c

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/*-
* Copyright (c) 1998,1999,2000,2001 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 <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/bio.h>
#include <sys/malloc.h>
#include <sys/devicestat.h>
#include <sys/sysctl.h>
#include <machine/stdarg.h>
#include <machine/resource.h>
#include <machine/bus.h>
#ifdef __alpha__
#include <machine/md_var.h>
#endif
#include <sys/rman.h>
#include <pci/pcivar.h>
#include <pci/pcireg.h>
#include <dev/ata/ata-all.h>
/* misc defines */
#define IOMASK 0xfffffffc
#define ATA_MASTERDEV(dev) ((pci_get_progif(dev) & 0x80) && \
(pci_get_progif(dev) & 0x05) != 0x05)
struct ata_pci_softc {
struct resource *bmio;
int bmaddr;
struct resource *irq;
int irqcnt;
};
int
ata_find_dev(device_t dev, u_int32_t type, u_int32_t revid)
{
device_t *children, child;
int nchildren, i;
if (device_get_children(device_get_parent(dev), &children, &nchildren))
return 0;
for (i = 0; i < nchildren; i++) {
child = children[i];
/* check that it's on the same silicon and the device we want */
if (pci_get_slot(dev) == pci_get_slot(child) &&
pci_get_vendor(child) == (type & 0xffff) &&
pci_get_device(child) == ((type & 0xffff0000) >> 16) &&
pci_get_revid(child) >= revid) {
free(children, M_TEMP);
return 1;
}
}
free(children, M_TEMP);
return 0;
}
static const char *
ata_pci_match(device_t dev)
{
if (pci_get_class(dev) != PCIC_STORAGE)
return NULL;
switch (pci_get_devid(dev)) {
/* supported chipsets */
case 0x12308086:
return "Intel PIIX ATA controller";
case 0x70108086:
return "Intel PIIX3 ATA controller";
case 0x71118086:
case 0x71998086:
return "Intel PIIX4 ATA33 controller";
case 0x24218086:
return "Intel ICH0 ATA33 controller";
case 0x24118086:
return "Intel ICH ATA66 controller";
case 0x244b8086:
return "Intel ICH2 ATA100 controller";
case 0x522910b9:
if (pci_get_revid(dev) < 0x20)
return "AcerLabs Aladdin ATA controller";
else
return "AcerLabs Aladdin ATA33 controller";
case 0x05711106:
if (ata_find_dev(dev, 0x05861106, 0x02))
return "VIA 82C586 ATA33 controller";
if (ata_find_dev(dev, 0x05861106, 0))
return "VIA 82C586 ATA controller";
if (ata_find_dev(dev, 0x05961106, 0x12))
return "VIA 82C596 ATA66 controller";
if (ata_find_dev(dev, 0x05961106, 0))
return "VIA 82C596 ATA33 controller";
if (ata_find_dev(dev, 0x06861106, 0x40))
return "VIA 82C686 ATA100 controller";
if (ata_find_dev(dev, 0x06861106, 0))
return "VIA 82C686 ATA66 controller";
return "VIA Apollo ATA controller";
case 0x55131039:
return "SiS 5591 ATA33 controller";
case 0x06491095:
return "CMD 649 ATA100 controller";
case 0x06481095:
return "CMD 648 ATA66 controller";
case 0x06461095:
return "CMD 646 ATA controller";
case 0xc6931080:
if (pci_get_subclass(dev) == PCIS_STORAGE_IDE)
return "Cypress 82C693 ATA controller";
break;
case 0x01021078:
return "Cyrix 5530 ATA33 controller";
case 0x74091022:
return "AMD 756 ATA66 controller";
case 0x02111166:
return "ServerWorks ROSB4 ATA33 controller";
case 0x4d33105a:
return "Promise ATA33 controller";
case 0x4d38105a:
return "Promise ATA66 controller";
case 0x0d30105a:
case 0x4d30105a:
return "Promise ATA100 controller";
case 0x00041103:
switch (pci_get_revid(dev)) {
case 0x00:
case 0x01:
return "HighPoint HPT366 ATA66 controller";
case 0x02:
return "HighPoint HPT368 ATA66 controller";
case 0x03:
case 0x04:
return "HighPoint HPT370 ATA100 controller";
default:
return "Unknown revision HighPoint ATA controller";
}
/* unsupported but known chipsets, generic DMA only */
case 0x10001042:
case 0x10011042:
return "RZ 100? ATA controller !WARNING! buggy chip data loss possible";
case 0x06401095:
return "CMD 640 ATA controller !WARNING! buggy chip data loss possible";
/* unknown chipsets, try generic DMA if it seems possible */
default:
if (pci_get_class(dev) == PCIC_STORAGE &&
(pci_get_subclass(dev) == PCIS_STORAGE_IDE))
return "Generic PCI ATA controller";
}
return NULL;
}
static int
ata_pci_probe(device_t dev)
{
const char *desc = ata_pci_match(dev);
if (desc) {
device_set_desc(dev, desc);
return 0;
}
else
return ENXIO;
}
static int
ata_pci_add_child(device_t dev, int unit)
{
device_t child;
/* check if this is located at one of the std addresses */
if (ATA_MASTERDEV(dev)) {
if (!(child = device_add_child(dev, "ata", unit)))
return ENOMEM;
}
else {
if (!(child = device_add_child(dev, "ata", 2)))
return ENOMEM;
}
return 0;
}
static int
ata_pci_attach(device_t dev)
{
struct ata_pci_softc *sc = device_get_softc(dev);
u_int8_t class, subclass;
u_int32_t type, cmd;
int rid;
/* 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);
if (!(cmd & PCIM_CMD_PORTEN)) {
device_printf(dev, "ATA channel disabled by BIOS\n");
return 0;
}
/* is busmastering supported ? */
if ((cmd & (PCIM_CMD_PORTEN | PCIM_CMD_BUSMASTEREN)) ==
(PCIM_CMD_PORTEN | PCIM_CMD_BUSMASTEREN)) {
/* is there a valid port range to connect to ? */
rid = 0x20;
sc->bmio = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
0, ~0, 1, RF_ACTIVE);
if (!sc->bmio)
device_printf(dev, "Busmastering DMA not configured\n");
}
else
device_printf(dev, "Busmastering DMA not supported\n");
/* do extra chipset specific setups */
switch (type) {
case 0x522910b9: /* Aladdin need to activate the ATAPI FIFO */
pci_write_config(dev, 0x53,
(pci_read_config(dev, 0x53, 1) & ~0x01) | 0x02, 1);
break;
case 0x4d38105a: /* Promise 66 & 100 need their clock changed */
case 0x4d30105a:
case 0x0d30105a:
ATA_OUTB(sc->bmio, 0x11, ATA_INB(sc->bmio, 0x11) | 0x0a);
/* FALLTHROUGH */
case 0x4d33105a: /* Promise (all) need burst mode to be turned on */
ATA_OUTB(sc->bmio, 0x1f, ATA_INB(sc->bmio, 0x1f) | 0x01);
break;
case 0x00041103: /* HighPoint */
switch (pci_get_revid(dev)) {
case 0x00:
case 0x01:
/* turn off interrupt prediction */
pci_write_config(dev, 0x51,
(pci_read_config(dev, 0x51, 1) & ~0x80), 1);
break;
case 0x02:
case 0x03:
case 0x04:
/* turn off interrupt prediction */
pci_write_config(dev, 0x51,
(pci_read_config(dev, 0x51, 1) & ~0x02), 1);
pci_write_config(dev, 0x55,
(pci_read_config(dev, 0x55, 1) & ~0x02), 1);
/* turn on interrupts */
pci_write_config(dev, 0x5a,
(pci_read_config(dev, 0x5a, 1) & ~0x10), 1);
}
break;
case 0x05711106:
case 0x74091022: /* VIA 82C586, 82C596, 82C686 & AMD 756 default setup */
/* set prefetch, postwrite */
pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) | 0xf0, 1);
/* set fifo configuration half'n'half */
pci_write_config(dev, 0x43,
(pci_read_config(dev, 0x43, 1) & 0x90) | 0x2a, 1);
/* set status register read retry */
pci_write_config(dev, 0x44, pci_read_config(dev, 0x44, 1) | 0x08, 1);
/* set DMA read & end-of-sector fifo flush */
pci_write_config(dev, 0x46,
(pci_read_config(dev, 0x46, 1) & 0x0c) | 0xf0, 1);
/* set sector size */
pci_write_config(dev, 0x60, DEV_BSIZE, 2);
pci_write_config(dev, 0x68, DEV_BSIZE, 2);
/* prepare for ATA-66 on the 82C686 and rev 0x12 and newer 82C596's */
if (ata_find_dev(dev, 0x06861106, 0) ||
ata_find_dev(dev, 0x05961106, 0x12)) {
pci_write_config(dev, 0x50,
pci_read_config(dev, 0x50, 4) | 0x070f070f, 4);
}
break;
case 0x10001042: /* RZ 100? known bad, no DMA */
case 0x10011042:
case 0x06401095: /* CMD 640 known bad, no DMA */
sc->bmio = NULL;
device_printf(dev, "Busmastering DMA disabled\n");
}
if (sc->bmio) {
sc->bmaddr = rman_get_start(sc->bmio);
BUS_RELEASE_RESOURCE(device_get_parent(dev), dev,
SYS_RES_IOPORT, rid, sc->bmio);
sc->bmio = NULL;
}
/*
* the Cypress chip is a mess, it contains two ATA functions, but
* both channels are visible on the first one.
* simply ignore the second function for now, as the right
* solution (ignoring the second channel on the first function)
* doesn't work with the crappy ATA interrupt setup on the alpha.
*/
if (pci_get_devid(dev) == 0xc6931080 && pci_get_function(dev) > 1)
return 0;
ata_pci_add_child(dev, 0);
if (ATA_MASTERDEV(dev) || pci_read_config(dev, 0x18, 4) & IOMASK)
ata_pci_add_child(dev, 1);
return bus_generic_attach(dev);
}
static int
ata_pci_intr(struct ata_softc *scp)
{
u_int8_t dmastat;
/*
* since we might share the IRQ with another device, and in some
* cases with our twin channel, we only want to process interrupts
* that we know this channel generated.
*/
switch (scp->chiptype) {
case 0x00041103: /* HighPoint HPT366/368/370 */
if (((dmastat = ata_dmastatus(scp)) &
(ATA_BMSTAT_ACTIVE | ATA_BMSTAT_INTERRUPT)) != ATA_BMSTAT_INTERRUPT)
return 1;
ATA_OUTB(scp->r_bmio, ATA_BMSTAT_PORT, dmastat | ATA_BMSTAT_INTERRUPT);
DELAY(1);
return 0;
case 0x06481095: /* CMD 648 */
case 0x06491095: /* CMD 649 */
if (!(pci_read_config(device_get_parent(scp->dev), 0x71, 1) &
(scp->channel ? 0x08 : 0x04)))
return 1;
break;
case 0x4d33105a: /* Promise Ultra/Fasttrak 33 */
case 0x4d38105a: /* Promise Ultra/Fasttrak 66 */
case 0x4d30105a: /* Promise Ultra/Fasttrak 100 */
case 0x0d30105a: /* Promise OEM ATA100 */
if (!(ATA_INL(scp->r_bmio, (scp->channel ? 0x14 : 0x1c)) &
(scp->channel ? 0x00004000 : 0x00000400)))
return 1;
break;
}
if (scp->flags & ATA_DMA_ACTIVE) {
if (!((dmastat = ata_dmastatus(scp)) & ATA_BMSTAT_INTERRUPT))
return 1;
ATA_OUTB(scp->r_bmio, ATA_BMSTAT_PORT, dmastat | ATA_BMSTAT_INTERRUPT);
DELAY(1);
}
return 0;
}
static int
ata_pci_print_child(device_t dev, device_t child)
{
struct ata_softc *scp = device_get_softc(child);
int retval = 0;
retval += bus_print_child_header(dev, child);
retval += printf(": at 0x%lx", rman_get_start(scp->r_io));
if (ATA_MASTERDEV(dev))
retval += printf(" irq %d", 14 + scp->channel);
retval += bus_print_child_footer(dev, child);
return retval;
}
static struct resource *
ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid,
u_long start, u_long end, u_long count, u_int flags)
{
struct ata_pci_softc *sc = device_get_softc(dev);
struct resource *res = NULL;
int channel = ((struct ata_softc *)device_get_softc(child))->channel;
int myrid;
if (type == SYS_RES_IOPORT) {
switch (*rid) {
case ATA_IOADDR_RID:
if (ATA_MASTERDEV(dev)) {
myrid = 0;
start = (channel ? ATA_SECONDARY : ATA_PRIMARY);
end = start + ATA_IOSIZE - 1;
count = ATA_IOSIZE;
res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
SYS_RES_IOPORT, &myrid,
start, end, count, flags);
}
else {
myrid = 0x10 + 8 * channel;
res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev,
SYS_RES_IOPORT, &myrid,
start, end, count, flags);
}
break;
case ATA_ALTADDR_RID:
if (ATA_MASTERDEV(dev)) {
myrid = 0;
start = (channel ? ATA_SECONDARY : ATA_PRIMARY) + ATA_ALTOFFSET;
end = start + ATA_ALTIOSIZE - 1;
count = ATA_ALTIOSIZE;
res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
SYS_RES_IOPORT, &myrid,
start, end, count, flags);
}
else {
myrid = 0x14 + 8 * channel;
res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev,
SYS_RES_IOPORT, &myrid,
start, end, count, flags);
if (res) {
start = rman_get_start(res) + 2;
end = rman_get_start(res) + ATA_ALTIOSIZE - 1;
count = ATA_ALTIOSIZE;
BUS_RELEASE_RESOURCE(device_get_parent(dev), dev,
SYS_RES_IOPORT, myrid, res);
res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev,
SYS_RES_IOPORT, &myrid,
start, end, count, flags);
}
}
break;
case ATA_BMADDR_RID:
if (sc->bmaddr) {
myrid = 0x20;
start = (channel == 0 ? sc->bmaddr : sc->bmaddr + ATA_BMIOSIZE);
end = start + ATA_BMIOSIZE - 1;
count = ATA_BMIOSIZE;
res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
SYS_RES_IOPORT, &myrid,
start, end, count, flags);
}
}
return res;
}
if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) {
if (ATA_MASTERDEV(dev)) {
#ifdef __alpha__
return alpha_platform_alloc_ide_intr(channel);
#else
int irq = (channel == 0 ? 14 : 15);
return BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
SYS_RES_IRQ, rid,
irq, irq, 1, flags & ~RF_SHAREABLE);
#endif
}
else {
/* primary and secondary channels share interrupt, keep track */
if (!sc->irq)
sc->irq = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev,
SYS_RES_IRQ, rid, 0, ~0, 1, flags);
sc->irqcnt++;
return sc->irq;
}
}
return 0;
}
static int
ata_pci_release_resource(device_t dev, device_t child, int type, int rid,
struct resource *r)
{
struct ata_pci_softc *sc = device_get_softc(dev);
int channel = ((struct ata_softc *)device_get_softc(child))->channel;
if (type == SYS_RES_IOPORT) {
switch (rid) {
case ATA_IOADDR_RID:
if (ATA_MASTERDEV(dev))
return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
SYS_RES_IOPORT, 0x0, r);
else
return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev,
SYS_RES_IOPORT, 0x10+8*channel, r);
break;
case ATA_ALTADDR_RID:
if (ATA_MASTERDEV(dev))
return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
SYS_RES_IOPORT, 0x0, r);
else
return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev,
SYS_RES_IOPORT, 0x14+8*channel, r);
break;
case ATA_BMADDR_RID:
return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
SYS_RES_IOPORT, 0x20, r);
default:
return ENOENT;
}
}
if (type == SYS_RES_IRQ) {
if (rid != ATA_IRQ_RID)
return ENOENT;
if (ATA_MASTERDEV(dev)) {
#ifdef __alpha__
return alpha_platform_release_ide_intr(channel, r);
#else
return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
SYS_RES_IRQ, rid, r);
#endif
}
else {
/* primary and secondary channels share interrupt, keep track */
if (--sc->irqcnt)
return 0;
sc->irq = 0;
return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev,
SYS_RES_IRQ, rid, r);
}
}
return EINVAL;
}
static int
ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq,
int flags, driver_intr_t *intr, void *arg,
void **cookiep)
{
if (ATA_MASTERDEV(dev)) {
#ifdef __alpha__
return alpha_platform_setup_ide_intr(child, irq, intr, arg, cookiep);
#else
return BUS_SETUP_INTR(device_get_parent(dev), child, irq,
flags, intr, arg, cookiep);
#endif
}
else
return BUS_SETUP_INTR(device_get_parent(dev), dev, irq,
flags, intr, arg, cookiep);
}
static int
ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq,
void *cookie)
{
if (ATA_MASTERDEV(dev)) {
#ifdef __alpha__
return alpha_platform_teardown_ide_intr(child, irq, cookie);
#else
return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie);
#endif
}
else
return BUS_TEARDOWN_INTR(device_get_parent(dev), dev, irq, cookie);
}
static device_method_t ata_pci_methods[] = {
/* device interface */
DEVMETHOD(device_probe, ata_pci_probe),
DEVMETHOD(device_attach, ata_pci_attach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
/* bus methods */
DEVMETHOD(bus_print_child, ata_pci_print_child),
DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource),
DEVMETHOD(bus_release_resource, ata_pci_release_resource),
DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
DEVMETHOD(bus_setup_intr, ata_pci_setup_intr),
DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr),
{ 0, 0 }
};
static driver_t ata_pci_driver = {
"atapci",
ata_pci_methods,
sizeof(struct ata_pci_softc),
};
static devclass_t ata_pci_devclass;
DRIVER_MODULE(atapci, pci, ata_pci_driver, ata_pci_devclass, 0, 0);
static int
ata_pcisub_probe(device_t dev)
{
struct ata_softc *scp = device_get_softc(dev);
device_t *children;
int count, i;
/* find channel number on this controller */
device_get_children(device_get_parent(dev), &children, &count);
for (i = 0; i < count; i++) {
if (children[i] == dev)
scp->channel = i;
}
free(children, M_TEMP);
scp->chiptype = pci_get_devid(device_get_parent(dev));
scp->intr_func = ata_pci_intr;
return ata_probe(dev);
}
static device_method_t ata_pcisub_methods[] = {
/* device interface */
DEVMETHOD(device_probe, ata_pcisub_probe),
DEVMETHOD(device_attach, ata_attach),
DEVMETHOD(device_detach, ata_detach),
DEVMETHOD(device_resume, ata_resume),
{ 0, 0 }
};
static driver_t ata_pcisub_driver = {
"ata",
ata_pcisub_methods,
sizeof(struct ata_softc),
};
DRIVER_MODULE(ata, atapci, ata_pcisub_driver, ata_devclass, 0, 0);
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