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

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/*-
* Copyright (c) 1998 - 2003 Søren Schmidt <sos@FreeBSD.org>
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_ata.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/malloc.h>
#include <sys/taskqueue.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 <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/ata/ata-all.h>
#include <dev/ata/ata-pci.h>
/* local vars */
static MALLOC_DEFINE(M_ATAPCI, "ATA PCI", "ATA driver PCI");
/* misc defines */
#define IOMASK 0xfffffffc
/* prototypes */
static int ata_pci_allocate(device_t, struct ata_channel *);
static void ata_pci_dmainit(struct ata_channel *);
static void ata_pci_locknoop(struct ata_channel *, int);
static int
ata_pci_probe(device_t dev)
{
if (pci_get_class(dev) != PCIC_STORAGE)
return ENXIO;
switch (pci_get_vendor(dev)) {
case ATA_ACARD_ID:
if (!ata_acard_ident(dev))
return 0;
break;
case ATA_ACER_LABS_ID:
if (!ata_ali_ident(dev))
return 0;
break;
case ATA_AMD_ID:
if (!ata_amd_ident(dev))
return 0;
break;
case ATA_CYRIX_ID:
if (!ata_cyrix_ident(dev))
return 0;
break;
case ATA_CYPRESS_ID:
if (!ata_cypress_ident(dev))
return 0;
break;
case ATA_HIGHPOINT_ID:
if (!ata_highpoint_ident(dev))
return 0;
break;
case ATA_INTEL_ID:
if (!ata_intel_ident(dev))
return 0;
break;
case ATA_NATIONAL_ID:
if (!ata_national_ident(dev))
return 0;
break;
case ATA_NVIDIA_ID:
if (!ata_nvidia_ident(dev))
return 0;
break;
case ATA_PROMISE_ID:
if (!ata_promise_ident(dev))
return 0;
break;
case ATA_SERVERWORKS_ID:
if (!ata_serverworks_ident(dev))
return 0;
break;
case ATA_SILICON_IMAGE_ID:
if (!ata_sii_ident(dev))
return 0;
break;
case ATA_SIS_ID:
if (!ata_sis_ident(dev))
return 0;
break;
case ATA_VIA_ID:
if (!ata_via_ident(dev))
return 0;
break;
case 0x16ca:
if (pci_get_devid(dev) == 0x000116ca) {
ata_generic_ident(dev);
device_set_desc(dev, "Cenatek Rocket Drive controller");
return 0;
}
break;
case 0x1042:
if (pci_get_devid(dev)==0x10001042 || pci_get_devid(dev)==0x10011042) {
ata_generic_ident(dev);
device_set_desc(dev,
"RZ 100? ATA controller !WARNING! buggy HW data loss possible");
return 0;
}
break;
}
/* unknown chipset, try generic DMA if it seems possible */
if ((pci_get_class(dev) == PCIC_STORAGE) &&
(pci_get_subclass(dev) == PCIS_STORAGE_IDE))
return ata_generic_ident(dev);
return ENXIO;
}
static int
ata_pci_attach(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(dev);
u_int8_t class, subclass;
u_int32_t type, cmd;
int unit;
/* 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, 2);
if (!(cmd & PCIM_CMD_PORTEN)) {
device_printf(dev, "ATA channel disabled by BIOS\n");
return 0;
}
/* do chipset specific setups only needed once */
if (ATA_MASTERDEV(dev) || pci_read_config(dev, 0x18, 4) & IOMASK)
ctlr->channels = 2;
else
ctlr->channels = 1;
ctlr->allocate = ata_pci_allocate;
ctlr->dmainit = ata_pci_dmainit;
ctlr->locking = ata_pci_locknoop;
#ifdef __sparc64__
if (!(cmd & PCIM_CMD_BUSMASTEREN)) {
pci_write_config(dev, PCIR_COMMAND, cmd | PCIM_CMD_BUSMASTEREN, 2);
cmd = pci_read_config(dev, PCIR_COMMAND, 2);
}
#endif
/* if busmastering configured get the I/O resource */
if ((cmd & PCIM_CMD_BUSMASTEREN) == PCIM_CMD_BUSMASTEREN) {
int rid = ATA_BMADDR_RID;
ctlr->r_io1 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
0, ~0, 1, RF_ACTIVE);
}
ctlr->chipinit(dev);
/* attach all channels on this controller */
for (unit = 0; unit < ctlr->channels; unit++)
device_add_child(dev, "ata", ATA_MASTERDEV(dev) ?
unit : devclass_find_free_unit(ata_devclass, 2));
return bus_generic_attach(dev);
}
static int
ata_pci_print_child(device_t dev, device_t child)
{
struct ata_channel *ch = device_get_softc(child);
int retval = 0;
retval += bus_print_child_header(dev, child);
retval += printf(": at 0x%lx", rman_get_start(ch->r_io[ATA_IDX_ADDR].res));
if (ATA_MASTERDEV(dev))
retval += printf(" irq %d", 14 + ch->unit);
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_controller *controller = device_get_softc(dev);
int unit = ((struct ata_channel *)device_get_softc(child))->unit;
struct resource *res = NULL;
int myrid;
if (type == SYS_RES_IOPORT) {
switch (*rid) {
case ATA_IOADDR_RID:
if (ATA_MASTERDEV(dev)) {
myrid = 0;
start = (unit ? 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 * unit;
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 = (unit ? 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 * unit;
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 = start + 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;
}
return res;
}
if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) {
if (ATA_MASTERDEV(dev)) {
#ifdef __alpha__
return alpha_platform_alloc_ide_intr(unit);
#else
int irq = (unit == 0 ? 14 : 15);
return BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
SYS_RES_IRQ, rid, irq, irq, 1, flags);
#endif
}
else {
return controller->r_irq;
}
}
return 0;
}
static int
ata_pci_release_resource(device_t dev, device_t child, int type, int rid,
struct resource *r)
{
int unit = ((struct ata_channel *)device_get_softc(child))->unit;
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 * unit, 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 * unit, r);
break;
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(unit, r);
#else
return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
SYS_RES_IRQ, rid, r);
#endif
}
else
return 0;
}
return EINVAL;
}
static int
ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq,
int flags, driver_intr_t *function, void *argument,
void **cookiep)
{
if (ATA_MASTERDEV(dev)) {
#ifdef __alpha__
return alpha_platform_setup_ide_intr(child, irq, function, argument,
cookiep);
#else
return BUS_SETUP_INTR(device_get_parent(dev), child, irq,
flags, function, argument, cookiep);
#endif
}
else {
struct ata_pci_controller *controller = device_get_softc(dev);
int unit = ((struct ata_channel *)device_get_softc(child))->unit;
controller->interrupt[unit].function = function;
controller->interrupt[unit].argument = argument;
*cookiep = controller;
return 0;
}
}
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 {
struct ata_pci_controller *controller = device_get_softc(dev);
int unit = ((struct ata_channel *)device_get_softc(child))->unit;
controller->interrupt[unit].function = NULL;
controller->interrupt[unit].argument = NULL;
return 0;
}
}
static int
ata_pci_allocate(device_t dev, struct ata_channel *ch)
{
struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
struct resource *io = NULL, *altio = NULL;
int i, rid;
rid = ATA_IOADDR_RID;
io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
0, ~0, ATA_IOSIZE, RF_ACTIVE);
if (!io)
return ENXIO;
rid = ATA_ALTADDR_RID;
altio = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
0, ~0, ATA_ALTIOSIZE, RF_ACTIVE);
if (!altio) {
bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io);
return ENXIO;
}
for (i = ATA_DATA; i <= ATA_STATUS; i ++) {
ch->r_io[i].res = io;
ch->r_io[i].offset = i;
}
ch->r_io[ATA_ALTSTAT].res = altio;
ch->r_io[ATA_ALTSTAT].offset = 0;
ch->r_io[ATA_IDX_ADDR].res = io;
if (ctlr->r_io1) {
for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) {
ch->r_io[i].res = ctlr->r_io1;
ch->r_io[i].offset = (i - ATA_BMCMD_PORT)+(ch->unit * ATA_BMIOSIZE);
}
/* if simplex controller, only allow DMA on primary channel */
ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_IDX_INB(ch, ATA_BMSTAT_PORT) &
(ATA_BMSTAT_DMA_MASTER | ATA_BMSTAT_DMA_SLAVE));
if (ch->unit > 0 &&
(ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_DMA_SIMPLEX))
device_printf(dev, "simplex device, DMA on primary only\n");
else
ctlr->dmainit(ch);
}
return 0;
}
static int
ata_pci_dmastart(struct ata_channel *ch)
{
ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) |
(ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR)));
ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, ch->dma->mdmatab);
ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
((ch->dma->flags & ATA_DMA_READ) ? ATA_BMCMD_WRITE_READ : 0) |
ATA_BMCMD_START_STOP);
return 0;
}
static int
ata_pci_dmastop(struct ata_channel *ch)
{
int error;
error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK;
ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
return error;
}
static void
ata_pci_dmainit(struct ata_channel *ch)
{
ata_dmainit(ch);
if (ch->dma) {
ch->dma->start = ata_pci_dmastart;
ch->dma->stop = ata_pci_dmastop;
}
}
static void
ata_pci_locknoop(struct ata_channel *ch, int flags)
{
}
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_controller),
};
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_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
struct ata_channel *ch = device_get_softc(dev);
device_t *children;
int count, error, 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)
ch->unit = i;
}
free(children, M_TEMP);
if ((error = ctlr->allocate(dev, ch)))
return error;
ch->device[MASTER].setmode = ctlr->setmode;
ch->device[SLAVE].setmode = ctlr->setmode;
ch->locking = ctlr->locking;
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_suspend, ata_suspend),
DEVMETHOD(device_resume, ata_resume),
{ 0, 0 }
};
static driver_t ata_pcisub_driver = {
"ata",
ata_pcisub_methods,
sizeof(struct ata_channel),
};
DRIVER_MODULE(ata, atapci, ata_pcisub_driver, ata_devclass, 0, 0);
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