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freebsd-skq/sys/dev/ata/ata-all.c
Søren Schmidt 7f7e251f51 Fix the problem with DMA mode not working on Aladdin chips. 
Amasing in how many ways Acer has screwed up that chip.
2000-10-24 13:50:22 +00:00

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/*-
* Copyright (c) 1998,1999,2000 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 "isa.h"
#include "card.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/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>
#include <sys/rman.h>
#if NPCI > 0
#include <pci/pcivar.h>
#include <pci/pcireg.h>
#endif
#include <isa/isavar.h>
#include <isa/isareg.h>
#ifdef __alpha__
#include <machine/md_var.h>
#endif
#include <dev/ata/ata-all.h>
#include <dev/ata/ata-disk.h>
#include <dev/ata/atapi-all.h>
/* misc defines */
#define IOMASK 0xfffffffc
#define ATA_IOADDR_RID 0
#define ATA_ALTADDR_RID 1
#define ATA_BMADDR_RID 2
#if NPCI > 0
#define ATA_MASTERDEV(dev) ((pci_get_progif(dev) & 0x80) && \
(pci_get_progif(dev) & 0x05) != 0x05)
#else
#define ATA_MASTERDEV(dev) (1)
#endif
/* prototypes */
static int ata_probe(device_t);
static int ata_attach(device_t);
static int ata_detach(device_t);
static int ata_resume(device_t);
static void ata_boot_attach(void);
static void ata_intr(void *);
static int ata_getparam(struct ata_softc *, int, u_int8_t);
static int ata_service(struct ata_softc *);
static char *active2str(int);
static void bswap(int8_t *, int);
static void btrim(int8_t *, int);
static void bpack(int8_t *, int8_t *, int);
/* local vars */
static devclass_t ata_devclass;
static devclass_t ata_pci_devclass;
static struct intr_config_hook *ata_delayed_attach = NULL;
static char ata_conf[256];
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_isa_probe(device_t dev)
{
struct ata_softc *scp = device_get_softc(dev);
struct resource *port;
int rid;
u_long tmp;
/* check isapnp ids */
if (ISA_PNP_PROBE(device_get_parent(dev), dev, ata_ids) == ENXIO)
return ENXIO;
/* allocate the port range */
rid = ATA_IOADDR_RID;
port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
ATA_IOSIZE, RF_ACTIVE);
if (!port)
return ENOMEM;
/* alloctate the altport range */
if (bus_get_resource(dev, SYS_RES_IOPORT, 1, &tmp, &tmp)) {
bus_set_resource(dev, SYS_RES_IOPORT, 1,
rman_get_start(port) + ATA_ALTOFFSET,
ATA_ALTIOSIZE);
}
bus_release_resource(dev, SYS_RES_IOPORT, 0, port);
scp->channel = 0;
scp->flags |= ATA_USE_16BIT;
return ata_probe(dev);
}
static device_method_t ata_isa_methods[] = {
/* device interface */
DEVMETHOD(device_probe, ata_isa_probe),
DEVMETHOD(device_attach, ata_attach),
DEVMETHOD(device_resume, ata_resume),
{ 0, 0 }
};
static driver_t ata_isa_driver = {
"ata",
ata_isa_methods,
sizeof(struct ata_softc),
};
DRIVER_MODULE(ata, isa, ata_isa_driver, ata_devclass, 0, 0);
#endif
#if NCARD > 0
static int
ata_pccard_probe(device_t dev)
{
struct ata_softc *scp = device_get_softc(dev);
struct resource *port;
int rid, len;
/* allocate the port range */
rid = ATA_IOADDR_RID;
len = bus_get_resource_count(dev, SYS_RES_IOPORT, rid);
port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, len, RF_ACTIVE);
if (!port)
return ENOMEM;
/*
* if we got more than the default ATA_IOSIZE ports, this is likely
* a pccard system where the altio ports are located just after the
* normal io ports, so no need to allocate them.
*/
if (len <= ATA_IOSIZE) {
bus_set_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID,
rman_get_start(port) + ATA_ALTOFFSET, ATA_ALTIOSIZE);
}
bus_release_resource(dev, SYS_RES_IOPORT, 0, port);
scp->channel = 0;
scp->flags |= ATA_USE_16BIT;
return ata_probe(dev);
}
static device_method_t ata_pccard_methods[] = {
/* device interface */
DEVMETHOD(device_probe, ata_pccard_probe),
DEVMETHOD(device_attach, ata_attach),
DEVMETHOD(device_detach, ata_detach),
{ 0, 0 }
};
static driver_t ata_pccard_driver = {
"ata",
ata_pccard_methods,
sizeof(struct ata_softc),
};
DRIVER_MODULE(ata, pccard, ata_pccard_driver, ata_devclass, 0, 0);
#endif
#if NPCI > 0
struct ata_pci_softc {
struct resource *bmio;
struct resource bmio_1;
struct resource bmio_2;
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:
return "AcerLabs Aladdin ATA33 controller";
case 0x05711106:
if (ata_find_dev(dev, 0x05861106, 0))
return "VIA 82C586 ATA33 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, 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);
/* 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 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:
outb(rman_get_start(sc->bmio) + 0x11,
inb(rman_get_start(sc->bmio) + 0x11) | 0x0a);
/* FALLTHROUGH */
case 0x4d33105a: /* Promise (all) need burst mode to be turned on */
outb(rman_get_start(sc->bmio) + 0x1f,
inb(rman_get_start(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;
}
/*
* 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_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%x", scp->ioaddr);
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);
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 == 0 ? IO_WD1 : IO_WD2);
end = start + ATA_IOSIZE - 1;
count = ATA_IOSIZE;
}
else
myrid = 0x10 + 8 * channel;
break;
case ATA_ALTADDR_RID:
if (ATA_MASTERDEV(dev)) {
myrid = 0;
start = (channel == 0 ? IO_WD1 : IO_WD2) + ATA_ALTOFFSET;
end = start + ATA_ALTIOSIZE - 1;
count = ATA_ALTIOSIZE;
}
else
myrid = 0x14 + 8 * channel;
break;
case ATA_BMADDR_RID:
/* the busmaster resource is shared between the two channels */
if (sc->bmio) {
if (channel == 0) {
sc->bmio_1 = *sc->bmio;
sc->bmio_1.r_end = sc->bmio->r_start + ATA_BM_OFFSET1;
return &sc->bmio_1;
} else {
sc->bmio_2 = *sc->bmio;
sc->bmio_2.r_start = sc->bmio->r_start + ATA_BM_OFFSET1;
sc->bmio_2.r_end = sc->bmio_2.r_start + ATA_BM_OFFSET1;
return &sc->bmio_2;
}
}
break;
default:
return 0;
}
if (ATA_MASTERDEV(dev))
/* make the parent just pass through the allocation. */
return BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
SYS_RES_IOPORT, &myrid,
start, end, count, flags);
else
/* we are using the parent resource directly. */
return BUS_ALLOC_RESOURCE(device_get_parent(dev), dev,
SYS_RES_IOPORT, &myrid,
start, end, count, flags);
}
if (type == SYS_RES_IRQ) {
if (*rid != 0)
return 0;
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 the same interrupt */
sc->irqcnt++;
if (!sc->irq)
sc->irq = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev,
SYS_RES_IRQ, rid, 0, ~0, 1, flags);
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;
int myrid = 0;
if (type == SYS_RES_IOPORT) {
switch (rid) {
case ATA_IOADDR_RID:
if (ATA_MASTERDEV(dev))
myrid = 0;
else
myrid = 0x10 + 8 * channel;
break;
case ATA_ALTADDR_RID:
if (ATA_MASTERDEV(dev))
myrid = 0;
else
myrid = 0x14 + 8 * channel;
break;
case ATA_BMADDR_RID:
return 0;
default:
return ENOENT;
}
if (ATA_MASTERDEV(dev))
/* make the parent just pass through the allocation. */
return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
SYS_RES_IOPORT, myrid, r);
else
/* we are using the parent resource directly. */
return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev,
SYS_RES_IOPORT, myrid, r);
}
if (type == SYS_RES_IRQ) {
if (rid != 0)
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 {
if (--sc->irqcnt)
return 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),
};
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 *list;
int count, i;
/* find channel number on this controller */
device_get_children(device_get_parent(dev), &list, &count);
for (i = 0; i < count; i++) {
if (list[i] == dev)
scp->channel = i;
}
scp->chiptype = pci_get_devid(device_get_parent(dev));
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);
#endif
static int
ata_probe(device_t dev)
{
struct ata_softc *scp = device_get_softc(dev);
struct resource *io = 0;
struct resource *altio = 0;
struct resource *bmio = 0;
int rid;
u_int32_t ioaddr, altioaddr, bmaddr;
int mask = 0;
u_int8_t status0, status1;
if (!scp || scp->flags & ATA_ATTACHED)
return ENXIO;
/* initialize the softc basics */
scp->active = ATA_IDLE;
scp->dev = dev;
scp->devices = 0;
rid = ATA_IOADDR_RID;
io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
ATA_IOSIZE, RF_ACTIVE);
if (!io)
goto failure;
ioaddr = rman_get_start(io);
rid = ATA_ALTADDR_RID;
altio = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
ATA_ALTIOSIZE, RF_ACTIVE);
if (altio) {
if (scp->flags & ATA_USE_16BIT || ATA_MASTERDEV(device_get_parent(dev)))
altioaddr = rman_get_start(altio);
else
altioaddr = rman_get_start(altio) + 0x02;
}
else
altioaddr = ioaddr + ATA_IOSIZE;
rid = ATA_BMADDR_RID;
bmio = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
bmaddr = bmio ? rman_get_start(bmio) : 0;
/* store the IO resources for eventual later release */
scp->r_io = io;
scp->r_altio = altio;
scp->r_bmio = bmio;
/* store the physical IO addresse for easy access */
scp->ioaddr = ioaddr;
scp->altioaddr = altioaddr;
scp->bmaddr = bmaddr;
if (bootverbose)
ata_printf(scp, -1, "iobase=0x%04x altiobase=0x%04x bmaddr=0x%04x\n",
scp->ioaddr, scp->altioaddr, scp->bmaddr);
/* 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 && status0 != 0xa5)
mask |= 0x01;
if ((status1 & 0xf8) != 0xf8 && status1 != 0xa5)
mask |= 0x02;
if (bootverbose)
ata_printf(scp, -1, "mask=%02x status0=%02x status1=%02x\n",
mask, status0, status1);
if (!mask)
goto failure;
ata_reset(scp, &mask);
if (bootverbose)
ata_printf(scp, -1, "devices = 0x%x\n", scp->devices);
if (!mask)
goto failure;
TAILQ_INIT(&scp->ata_queue);
TAILQ_INIT(&scp->atapi_queue);
return 0;
failure:
if (io)
bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io);
if (altio)
bus_release_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID, altio);
if (bmio)
bus_release_resource(dev, SYS_RES_IOPORT, ATA_BMADDR_RID, bmio);
if (bootverbose)
ata_printf(scp, -1, "probe allocation failed\n");
return ENXIO;
}
static int
ata_attach(device_t dev)
{
struct ata_softc *scp = device_get_softc(dev);
int error, rid = 0;
if (!scp || scp->flags & ATA_ATTACHED)
return ENXIO;
scp->r_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
RF_SHAREABLE | RF_ACTIVE);
if (!scp->r_irq) {
ata_printf(scp, -1, "unable to allocate interrupt\n");
return ENXIO;
}
if ((error = bus_setup_intr(dev, scp->r_irq, INTR_TYPE_BIO, ata_intr,
scp, &scp->ih)))
return error;
/*
* do not attach devices if we are in early boot, this is done later
* when interrupts are enabled by a hook into the boot process.
* otherwise attach what the probe has found in scp->devices.
*/
if (!ata_delayed_attach) {
if (scp->devices & ATA_ATA_SLAVE)
if (ata_getparam(scp, ATA_SLAVE, ATA_C_ATA_IDENTIFY))
scp->devices &= ~ATA_ATA_SLAVE;
if (scp->devices & ATA_ATAPI_SLAVE)
if (ata_getparam(scp, ATA_SLAVE, ATA_C_ATAPI_IDENTIFY))
scp->devices &= ~ATA_ATAPI_SLAVE;
if (scp->devices & ATA_ATA_MASTER)
if (ata_getparam(scp, ATA_MASTER, ATA_C_ATA_IDENTIFY))
scp->devices &= ~ATA_ATA_MASTER;
if (scp->devices & ATA_ATAPI_MASTER)
if (ata_getparam(scp, ATA_MASTER,ATA_C_ATAPI_IDENTIFY))
scp->devices &= ~ATA_ATAPI_MASTER;
#if NATADISK > 0
if (scp->devices & ATA_ATA_MASTER)
ad_attach(scp, ATA_MASTER);
if (scp->devices & ATA_ATA_SLAVE)
ad_attach(scp, ATA_SLAVE);
#endif
#if NATAPICD > 0 || NATAPIFD > 0 || NATAPIST > 0
if (scp->devices & ATA_ATAPI_MASTER)
atapi_attach(scp, ATA_MASTER);
if (scp->devices & ATA_ATAPI_SLAVE)
atapi_attach(scp, ATA_SLAVE);
#endif
}
scp->flags |= ATA_ATTACHED;
return 0;
}
static int
ata_detach(device_t dev)
{
struct ata_softc *scp = device_get_softc(dev);
if (!scp || !(scp->flags & ATA_ATTACHED))
return ENXIO;
#if NATADISK > 0
if (scp->devices & ATA_ATA_MASTER)
ad_detach(scp->dev_softc[0]);
if (scp->devices & ATA_ATA_SLAVE)
ad_detach(scp->dev_softc[1]);
#endif
#if NATAPICD > 0 || NATAPIFD > 0 || NATAPIST > 0
if (scp->devices & ATA_ATAPI_MASTER)
atapi_detach(scp->dev_softc[0]);
if (scp->devices & ATA_ATAPI_SLAVE)
atapi_detach(scp->dev_softc[1]);
#endif
if (scp->dev_param[ATA_DEV(ATA_MASTER)]) {
free(scp->dev_param[ATA_DEV(ATA_MASTER)], M_ATA);
scp->dev_param[ATA_DEV(ATA_MASTER)] = NULL;
}
if (scp->dev_param[ATA_DEV(ATA_SLAVE)]) {
free(scp->dev_param[ATA_DEV(ATA_SLAVE)], M_ATA);
scp->dev_param[ATA_DEV(ATA_SLAVE)] = NULL;
}
scp->dev_softc[ATA_DEV(ATA_MASTER)] = NULL;
scp->dev_softc[ATA_DEV(ATA_SLAVE)] = NULL;
scp->mode[ATA_DEV(ATA_MASTER)] = ATA_PIO;
scp->mode[ATA_DEV(ATA_SLAVE)] = ATA_PIO;
bus_teardown_intr(dev, scp->r_irq, scp->ih);
bus_release_resource(dev, SYS_RES_IRQ, 0, scp->r_irq);
if (scp->r_bmio)
bus_release_resource(dev, SYS_RES_IOPORT, ATA_BMADDR_RID, scp->r_bmio);
if (scp->r_altio)
bus_release_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID,scp->r_altio);
bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, scp->r_io);
scp->flags &= ~ATA_ATTACHED;
return 0;
}
static int
ata_resume(device_t dev)
{
struct ata_softc *scp = device_get_softc(dev);
ata_reinit(scp);
return 0;
}
static int
ata_getparam(struct ata_softc *scp, int device, u_int8_t command)
{
struct ata_params *ata_parm;
int8_t buffer[DEV_BSIZE];
int retry = 0;
/* select drive */
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | device);
DELAY(1);
/* enable interrupt */
outb(scp->altioaddr, ATA_A_4BIT);
DELAY(1);
/* apparently some devices needs this repeated */
do {
if (ata_command(scp, device, command, 0, 0, 0, 0, 0, ATA_WAIT_INTR)) {
ata_printf(scp, device, "identify failed\n");
return -1;
}
if (retry++ > 4) {
ata_printf(scp, device, "identify retries exceeded\n");
return -1;
}
} while (ata_wait(scp, device,
((command == ATA_C_ATAPI_IDENTIFY) ?
ATA_S_DRQ : (ATA_S_READY | ATA_S_DSC | ATA_S_DRQ))));
insw(scp->ioaddr + ATA_DATA, buffer, sizeof(buffer)/sizeof(int16_t));
ata_parm = malloc(sizeof(struct ata_params), M_ATA, M_NOWAIT);
if (!ata_parm) {
ata_printf(scp, device, "malloc for identify data failed\n");
return -1;
}
bcopy(buffer, ata_parm, sizeof(struct ata_params));
if (command == ATA_C_ATA_IDENTIFY ||
!((ata_parm->model[0] == 'N' && ata_parm->model[1] == 'E') ||
(ata_parm->model[0] == 'F' && ata_parm->model[1] == 'X')))
bswap(ata_parm->model, sizeof(ata_parm->model));
btrim(ata_parm->model, sizeof(ata_parm->model));
bpack(ata_parm->model, ata_parm->model, sizeof(ata_parm->model));
bswap(ata_parm->revision, sizeof(ata_parm->revision));
btrim(ata_parm->revision, sizeof(ata_parm->revision));
bpack(ata_parm->revision, ata_parm->revision, sizeof(ata_parm->revision));
scp->dev_param[ATA_DEV(device)] = ata_parm;
return 0;
}
static void
ata_boot_attach(void)
{
struct ata_softc *scp;
int ctlr;
/*
* run through all ata devices and look for real ATA & ATAPI devices
* using the hints we found in the early probe, this avoids some of
* the delays probing of non-exsistent devices can cause.
*/
for (ctlr=0; ctlr<devclass_get_maxunit(ata_devclass); ctlr++) {
if (!(scp = devclass_get_softc(ata_devclass, ctlr)))
continue;
if (scp->devices & ATA_ATA_SLAVE)
if (ata_getparam(scp, ATA_SLAVE, ATA_C_ATA_IDENTIFY))
scp->devices &= ~ATA_ATA_SLAVE;
if (scp->devices & ATA_ATAPI_SLAVE)
if (ata_getparam(scp, ATA_SLAVE, ATA_C_ATAPI_IDENTIFY))
scp->devices &= ~ATA_ATAPI_SLAVE;
if (scp->devices & ATA_ATA_MASTER)
if (ata_getparam(scp, ATA_MASTER, ATA_C_ATA_IDENTIFY))
scp->devices &= ~ATA_ATA_MASTER;
if (scp->devices & ATA_ATAPI_MASTER)
if (ata_getparam(scp, ATA_MASTER,ATA_C_ATAPI_IDENTIFY))
scp->devices &= ~ATA_ATAPI_MASTER;
}
#if NATADISK > 0
/* now we know whats there, do the real attach, first the ATA disks */
for (ctlr=0; ctlr<devclass_get_maxunit(ata_devclass); ctlr++) {
if (!(scp = devclass_get_softc(ata_devclass, ctlr)))
continue;
if (scp->devices & ATA_ATA_MASTER)
ad_attach(scp, ATA_MASTER);
if (scp->devices & ATA_ATA_SLAVE)
ad_attach(scp, ATA_SLAVE);
}
#endif
#if NATAPICD > 0 || NATAPIFD > 0 || NATAPIST > 0
/* then the atapi devices */
for (ctlr=0; ctlr<devclass_get_maxunit(ata_devclass); ctlr++) {
if (!(scp = devclass_get_softc(ata_devclass, ctlr)))
continue;
if (scp->devices & ATA_ATAPI_MASTER)
atapi_attach(scp, ATA_MASTER);
if (scp->devices & ATA_ATAPI_SLAVE)
atapi_attach(scp, ATA_SLAVE);
}
#endif
if (ata_delayed_attach) {
config_intrhook_disestablish(ata_delayed_attach);
free(ata_delayed_attach, M_ATA);
ata_delayed_attach = NULL;
}
}
static void
ata_intr(void *data)
{
struct ata_softc *scp = (struct ata_softc *)data;
struct ata_pci_softc *sc = device_get_softc(device_get_parent(scp->dev));
u_int8_t dmastat = 0;
/*
* 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) {
#if NPCI > 0
case 0x00041103: /* HighPoint HPT366/368/370 */
if (((dmastat = ata_dmastatus(scp)) &
(ATA_BMSTAT_ACTIVE | ATA_BMSTAT_INTERRUPT)) != ATA_BMSTAT_INTERRUPT)
return;
outb(scp->bmaddr + ATA_BMSTAT_PORT, dmastat | ATA_BMSTAT_INTERRUPT);
break;
case 0x06481095: /* CMD 648 */
case 0x06491095: /* CMD 649 */
if (!(pci_read_config(device_get_parent(scp->dev), 0x71, 1) &
(scp->channel ? 0x08 : 0x04)))
return;
goto out;
case 0x4d33105a: /* Promise Ultra/Fasttrak 33 */
case 0x4d38105a: /* Promise Ultra/Fasttrak 66 */
case 0x4d30105a: /* Promise Ultra/Fasttrak 100 */
case 0x0d30105a: /* Promise OEM ATA100 */
if (!(inl(rman_get_start(sc->bmio) + 0x1c) &
(scp->channel ? 0x00004000 : 0x00000400)))
return;
/* FALLTHROUGH */
out:
#endif
default:
if (scp->flags & ATA_DMA_ACTIVE) {
if (!((dmastat = ata_dmastatus(scp)) & ATA_BMSTAT_INTERRUPT))
return;
outb(scp->bmaddr + ATA_BMSTAT_PORT, dmastat | ATA_BMSTAT_INTERRUPT);
}
}
DELAY(1);
/* if drive is busy it didn't interrupt */
if (inb(scp->altioaddr) & ATA_S_BUSY)
return;
/* clear interrupt and get status */
scp->status = inb(scp->ioaddr + ATA_STATUS);
if (scp->status & ATA_S_ERROR)
scp->error = inb(scp->ioaddr + ATA_ERROR);
/* 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_WAIT_READY:
break;
case ATA_REINITING:
return;
case ATA_IDLE:
if (scp->flags & ATA_QUEUED) {
scp->active = ATA_ACTIVE;
if (ata_service(scp) == ATA_OP_CONTINUES)
return;
}
/* FALLTHROUGH */
default:
#ifdef ATA_DEBUG
{
static int intr_count = 0;
if (intr_count++ < 10)
ata_printf(scp, -1, "unwanted interrupt %d status = %02x\n",
intr_count, scp->status);
}
#endif
}
scp->active = ATA_IDLE;
scp->running = NULL;
ata_start(scp);
return;
}
void
ata_start(struct ata_softc *scp)
{
#if NATADISK > 0
struct ad_request *ad_request;
#endif
#if NATAPICD > 0 || NATAPIFD > 0 || NATAPIST > 0
struct atapi_request *atapi_request;
#endif
if (scp->active != ATA_IDLE)
return;
scp->active = ATA_ACTIVE;
#if NATADISK > 0
/* find & call the responsible driver if anything on the ATA queue */
if (TAILQ_EMPTY(&scp->ata_queue)) {
if (scp->devices & (ATA_ATA_MASTER) && scp->dev_softc[0])
ad_start((struct ad_softc *)scp->dev_softc[0]);
if (scp->devices & (ATA_ATA_SLAVE) && scp->dev_softc[1])
ad_start((struct ad_softc *)scp->dev_softc[1]);
}
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;
if (ad_transfer(ad_request) == ATA_OP_CONTINUES)
return;
}
#endif
#if NATAPICD > 0 || NATAPIFD > 0 || NATAPIST > 0
/* find & call the responsible driver if anything on the ATAPI queue */
if (TAILQ_EMPTY(&scp->atapi_queue)) {
if (scp->devices & (ATA_ATAPI_MASTER) && scp->dev_softc[0])
atapi_start((struct atapi_softc *)scp->dev_softc[0]);
if (scp->devices & (ATA_ATAPI_SLAVE) && scp->dev_softc[1])
atapi_start((struct atapi_softc *)scp->dev_softc[1]);
}
if ((atapi_request = TAILQ_FIRST(&scp->atapi_queue))) {
TAILQ_REMOVE(&scp->atapi_queue, atapi_request, chain);
scp->active = ATA_ACTIVE_ATAPI;
scp->running = atapi_request;
atapi_transfer(atapi_request);
return;
}
#endif
scp->active = ATA_IDLE;
}
void
ata_reset(struct ata_softc *scp, int *mask)
{
int timeout;
u_int8_t status0 = ATA_S_BUSY, status1 = ATA_S_BUSY;
/* 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(100000);
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++) {
if (status0 & ATA_S_BUSY) {
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_MASTER);
DELAY(1);
status0 = inb(scp->ioaddr + ATA_STATUS);
if (!(status0 & ATA_S_BUSY)) {
/* check for ATAPI signature while its still there */
if (inb(scp->ioaddr + ATA_CYL_LSB) == ATAPI_MAGIC_LSB &&
inb(scp->ioaddr + ATA_CYL_MSB) == ATAPI_MAGIC_MSB)
scp->devices |= ATA_ATAPI_MASTER;
}
}
if (status1 & ATA_S_BUSY) {
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_SLAVE);
DELAY(1);
status1 = inb(scp->ioaddr + ATA_STATUS);
if (!(status1 & ATA_S_BUSY)) {
/* check for ATAPI signature while its still there */
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 (*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)
ata_printf(scp, -1, "mask=%02x status0=%02x status1=%02x\n",
*mask, status0, status1);
if (!mask) {
scp->devices = 0;
return;
}
/*
* OK, we have at least one device on the chain, checks for ATAPI
* already done, if none check if its a good old ATA device.
*/
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;
}
}
}
int
ata_reinit(struct ata_softc *scp)
{
int mask = 0, omask;
scp->active = ATA_REINITING;
scp->running = NULL;
if (scp->devices & (ATA_ATA_MASTER | ATA_ATAPI_MASTER))
mask |= 0x01;
if (scp->devices & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE))
mask |= 0x02;
if (mask) {
omask = mask;
ata_printf(scp, -1, "resetting devices .. ");
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;
}
static int
ata_service(struct ata_softc *scp)
{
/* do we have a SERVICE request from the drive ? */
if ((scp->status & (ATA_S_SERVICE|ATA_S_ERROR|ATA_S_DRQ)) == ATA_S_SERVICE){
outb(scp->bmaddr + ATA_BMSTAT_PORT, ata_dmastatus(scp) | ATA_BMSTAT_INTERRUPT);
#if NATADISK > 0
if ((inb(scp->ioaddr + ATA_DRIVE) & ATA_SLAVE) == ATA_MASTER) {
if ((scp->devices & ATA_ATA_MASTER) && scp->dev_softc[0])
return ad_service((struct ad_softc *)scp->dev_softc[0], 0);
}
else {
if ((scp->devices & ATA_ATA_SLAVE) && scp->dev_softc[1])
return ad_service((struct ad_softc *)scp->dev_softc[1], 0);
}
#endif
}
return ATA_OP_FINISHED;
}
int
ata_wait(struct ata_softc *scp, int device, u_int8_t mask)
{
int timeout = 0;
int statio = scp->ioaddr + ATA_STATUS;
DELAY(1);
while (timeout < 5000000) { /* timeout 5 secs */
scp->status = inb(statio);
/* if drive fails status, reselect the drive just to be sure */
if (scp->status == 0xff) {
ata_printf(scp, device, "no status, reselecting device\n");
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | device);
DELAY(1);
scp->status = inb(statio);
}
/* are we done ? */
if (!(scp->status & ATA_S_BUSY))
break;
if (timeout > 1000) {
timeout += 1000;
DELAY(1000);
}
else {
timeout += 10;
DELAY(10);
}
}
if (scp->status & ATA_S_ERROR)
scp->error = inb(scp->ioaddr + ATA_ERROR);
if (timeout >= 5000000)
return -1;
if (!mask)
return (scp->status & ATA_S_ERROR);
/* Wait 50 msec for bits wanted. */
timeout = 5000;
while (timeout--) {
scp->status = inb(statio);
if ((scp->status & mask) == mask) {
if (scp->status & ATA_S_ERROR)
scp->error = inb(scp->ioaddr + ATA_ERROR);
return (scp->status & ATA_S_ERROR);
}
DELAY (10);
}
return -1;
}
int
ata_command(struct ata_softc *scp, int device, u_int8_t command,
u_int16_t cylinder, u_int8_t head, u_int8_t sector,
u_int8_t count, u_int8_t feature, int flags)
{
int error = 0;
#ifdef ATA_DEBUG
ata_printf(scp, device, "ata_command: addr=%04x, cmd=%02x, "
"c=%d, h=%d, s=%d, count=%d, feature=%d, flags=%02x\n",
scp->ioaddr, command, cylinder, head, sector,
count, feature, flags);
#endif
/* disable interrupt from device */
if (scp->flags & ATA_QUEUED)
outb(scp->altioaddr, ATA_A_IDS | ATA_A_4BIT);
/* select device */
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | device);
/* ready to issue command ? */
if (ata_wait(scp, device, 0) < 0) {
ata_printf(scp, device,
"timeout waiting to give command=%02x s=%02x e=%02x\n",
command, scp->status, scp->error);
return -1;
}
outb(scp->ioaddr + ATA_FEATURE, feature);
outb(scp->ioaddr + ATA_COUNT, count);
outb(scp->ioaddr + ATA_SECTOR, sector);
outb(scp->ioaddr + ATA_CYL_MSB, cylinder >> 8);
outb(scp->ioaddr + ATA_CYL_LSB, cylinder);
outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | device | head);
switch (flags) {
case ATA_WAIT_INTR:
scp->active = ATA_WAIT_INTR;
asleep((caddr_t)scp, PRIBIO, "atacmd", 10 * hz);
outb(scp->ioaddr + ATA_CMD, command);
/* enable interrupt */
if (scp->flags & ATA_QUEUED)
outb(scp->altioaddr, ATA_A_4BIT);
if (await(PRIBIO, 10 * hz)) {
ata_printf(scp, device, "ata_command: timeout waiting for intr\n");
scp->active = ATA_IDLE;
error = -1;
}
break;
case ATA_WAIT_READY:
if (scp->active != ATA_REINITING)
scp->active = ATA_WAIT_READY;
outb(scp->ioaddr + ATA_CMD, command);
if (ata_wait(scp, device, ATA_S_READY) < 0) {
ata_printf(scp, device,
"timeout waiting for command=%02x s=%02x e=%02x\n",
command, scp->status, scp->error);
error = -1;
}
if (scp->active != ATA_REINITING)
scp->active = ATA_IDLE;
break;
case ATA_IMMEDIATE:
outb(scp->ioaddr + ATA_CMD, command);
break;
default:
ata_printf(scp, device, "DANGER: illegal interrupt flag=%s\n",
active2str(flags));
}
/* enable interrupt */
if (scp->flags & ATA_QUEUED)
outb(scp->altioaddr, ATA_A_4BIT);
return error;
}
int
ata_get_lun(u_int32_t *map)
{
int lun = ffs(~*map) - 1;
*map |= (1 << lun);
return lun;
}
void
ata_free_lun(u_int32_t *map, int lun)
{
*map &= ~(1 << lun);
}
int
ata_printf(struct ata_softc *scp, int device, const char * fmt, ...)
{
va_list ap;
int ret;
if (device == -1)
ret = printf("ata%d: ", device_get_unit(scp->dev));
else
ret = printf("ata%d-%s: ", device_get_unit(scp->dev),
(device == ATA_MASTER) ? "master" : "slave");
va_start(ap, fmt);
ret += vprintf(fmt, ap);
va_end(ap);
return ret;
}
char *
ata_mode2str(int mode)
{
switch (mode) {
case ATA_PIO: return "BIOSPIO";
case ATA_PIO0: return "PIO0";
case ATA_PIO1: return "PIO1";
case ATA_PIO2: return "PIO2";
case ATA_PIO3: return "PIO3";
case ATA_PIO4: return "PIO4";
case ATA_WDMA2: return "WDMA2";
case ATA_UDMA2: return "UDMA33";
case ATA_UDMA4: return "UDMA66";
case ATA_UDMA5: return "UDMA100";
case ATA_DMA: return "BIOSDMA";
default: return "???";
}
}
int
ata_pio2mode(int pio)
{
switch (pio) {
default:
case 0: return ATA_PIO0;
case 1: return ATA_PIO1;
case 2: return ATA_PIO2;
case 3: return ATA_PIO3;
case 4: return ATA_PIO4;
}
}
int
ata_pmode(struct ata_params *ap)
{
if (ap->atavalid & ATA_FLAG_64_70) {
if (ap->apiomodes & 2)
return 4;
if (ap->apiomodes & 1)
return 3;
}
if (ap->opiomode == 2)
return 2;
if (ap->opiomode == 1)
return 1;
if (ap->opiomode == 0)
return 0;
return -1;
}
int
ata_wmode(struct ata_params *ap)
{
if (ap->wdmamodes & 4)
return 2;
if (ap->wdmamodes & 2)
return 1;
if (ap->wdmamodes & 1)
return 0;
return -1;
}
int
ata_umode(struct ata_params *ap)
{
if (ap->atavalid & ATA_FLAG_88) {
if (ap->udmamodes & 0x20)
return 5;
if (ap->udmamodes & 0x10)
return 4;
if (ap->udmamodes & 0x08)
return 3;
if (ap->udmamodes & 0x04)
return 2;
if (ap->udmamodes & 0x02)
return 1;
if (ap->udmamodes & 0x01)
return 0;
}
return -1;
}
static char *
active2str(int active)
{
static char buf[8];
switch (active) {
case ATA_IDLE:
return("ATA_IDLE");
case ATA_IMMEDIATE:
return("ATA_IMMEDIATE");
case ATA_WAIT_INTR:
return("ATA_WAIT_INTR");
case ATA_WAIT_READY:
return("ATA_WAIT_READY");
case ATA_ACTIVE:
return("ATA_ACTIVE");
case ATA_ACTIVE_ATA:
return("ATA_ACTIVE_ATA");
case ATA_ACTIVE_ATAPI:
return("ATA_ACTIVE_ATAPI");
case ATA_REINITING:
return("ATA_REINITING");
default:
sprintf(buf, "0x%02x", active);
return buf;
}
}
static void
bswap(int8_t *buf, int len)
{
u_int16_t *ptr = (u_int16_t*)(buf + len);
while (--ptr >= (u_int16_t*)buf)
*ptr = ntohs(*ptr);
}
static void
btrim(int8_t *buf, int len)
{
int8_t *ptr;
for (ptr = buf; ptr < buf+len; ++ptr)
if (!*ptr)
*ptr = ' ';
for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr)
*ptr = 0;
}
static void
bpack(int8_t *src, int8_t *dst, int len)
{
int i, j, blank;
for (i = j = blank = 0 ; i < len; 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];
}
if (j < len)
dst[j] = 0x00;
}
static void
ata_change_mode(struct ata_softc *scp, int device, int mode)
{
int s = splbio();
while (scp->active != ATA_IDLE)
tsleep((caddr_t)&s, PRIBIO, "atachm", hz/4);
scp->active = ATA_REINITING;
ata_dmainit(scp, device, ata_pmode(ATA_PARAM(scp, device)),
mode < ATA_DMA ? -1 : ata_wmode(ATA_PARAM(scp, device)),
mode < ATA_DMA ? -1 : ata_umode(ATA_PARAM(scp, device)));
scp->active = ATA_IDLE;
ata_start(scp);
splx(s);
}
static int
sysctl_hw_ata(SYSCTL_HANDLER_ARGS)
{
struct ata_softc *scp;
int ctlr, error, i;
/* readout internal state */
bzero(ata_conf, sizeof(ata_conf));
for (ctlr=0; ctlr<devclass_get_maxunit(ata_devclass); ctlr++) {
if (!(scp = devclass_get_softc(ata_devclass, ctlr)))
continue;
for (i = 0; i < 2; i++) {
if (!scp->dev_softc[i])
strcat(ata_conf, "---,");
else if (scp->mode[i] >= ATA_DMA)
strcat(ata_conf, "dma,");
else
strcat(ata_conf, "pio,");
}
}
error = sysctl_handle_string(oidp, ata_conf, sizeof(ata_conf), req);
if (error == 0 && req->newptr != NULL) {
char *ptr = ata_conf;
/* update internal state */
i = 0;
while (*ptr) {
if (!strncmp(ptr, "pio", 3) || !strncmp(ptr, "PIO", 3)) {
if ((scp = devclass_get_softc(ata_devclass, i >> 1)) &&
scp->dev_softc[i & 1] && scp->mode[i & 1] >= ATA_DMA)
ata_change_mode(scp, (i & 1)?ATA_SLAVE:ATA_MASTER, ATA_PIO);
}
else if (!strncmp(ptr, "dma", 3) || !strncmp(ptr, "DMA", 3)) {
if ((scp = devclass_get_softc(ata_devclass, i >> 1)) &&
scp->dev_softc[i & 1] && scp->mode[i & 1] < ATA_DMA)
ata_change_mode(scp, (i & 1)?ATA_SLAVE:ATA_MASTER, ATA_DMA);
}
else if (strncmp(ptr, "---", 3))
break;
ptr+=3;
if (*ptr++ != ',' ||
++i > (devclass_get_maxunit(ata_devclass) << 1))
break;
}
}
return error;
}
SYSCTL_PROC(_hw, OID_AUTO, atamodes, CTLTYPE_STRING | CTLFLAG_RW,
0, sizeof(ata_conf), sysctl_hw_ata, "A", "");
static void
ata_init(void)
{
/* register boot attach to be run when interrupts are enabled */
if (!(ata_delayed_attach = (struct intr_config_hook *)
malloc(sizeof(struct intr_config_hook),
M_TEMP, M_NOWAIT))) {
printf("ata: malloc of delayed attach hook failed\n");
return;
}
bzero(ata_delayed_attach, sizeof(struct intr_config_hook));
ata_delayed_attach->ich_func = (void*)ata_boot_attach;
if (config_intrhook_establish(ata_delayed_attach) != 0) {
printf("ata: config_intrhook_establish failed\n");
free(ata_delayed_attach, M_TEMP);
}
}
SYSINIT(atadev, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL)
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