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/*-
* Copyright (c) 1998 - 2008 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.
*
* 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: release/9.1.0/sys/dev/ata/chipsets/ata-acerlabs.c 233717 2012-03-30 23:56:16Z marius $");
#include "opt_ata.h"
#include <sys/param.h>
#include <sys/module.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/ata.h>
#include <sys/bus.h>
#include <sys/endian.h>
#include <sys/malloc.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/sema.h>
#include <sys/taskqueue.h>
#include <vm/uma.h>
#include <machine/stdarg.h>
#include <machine/resource.h>
#include <machine/bus.h>
#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>
#include <ata_if.h>
/* local prototypes */
static int ata_ali_chipinit(device_t dev);
static int ata_ali_chipdeinit(device_t dev);
static int ata_ali_ch_attach(device_t dev);
static int ata_ali_sata_ch_attach(device_t dev);
static void ata_ali_reset(device_t dev);
static int ata_ali_setmode(device_t dev, int target, int mode);
/* misc defines */
#define ALI_OLD 0x01
#define ALI_NEW 0x02
#define ALI_SATA 0x04
struct ali_sata_resources {
struct resource *bars[4];
};
/*
* Acer Labs Inc (ALI) chipset support functions
*/
static int
ata_ali_probe(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(dev);
static const struct ata_chip_id const ids[] =
{{ ATA_ALI_5289, 0x00, 2, ALI_SATA, ATA_SA150, "M5289" },
{ ATA_ALI_5288, 0x00, 4, ALI_SATA, ATA_SA300, "M5288" },
{ ATA_ALI_5287, 0x00, 4, ALI_SATA, ATA_SA150, "M5287" },
{ ATA_ALI_5281, 0x00, 2, ALI_SATA, ATA_SA150, "M5281" },
{ ATA_ALI_5228, 0xc5, 0, ALI_NEW, ATA_UDMA6, "M5228" },
{ ATA_ALI_5229, 0xc5, 0, ALI_NEW, ATA_UDMA6, "M5229" },
{ ATA_ALI_5229, 0xc4, 0, ALI_NEW, ATA_UDMA5, "M5229" },
{ ATA_ALI_5229, 0xc2, 0, ALI_NEW, ATA_UDMA4, "M5229" },
{ ATA_ALI_5229, 0x20, 0, ALI_OLD, ATA_UDMA2, "M5229" },
{ ATA_ALI_5229, 0x00, 0, ALI_OLD, ATA_WDMA2, "M5229" },
{ 0, 0, 0, 0, 0, 0}};
if (pci_get_vendor(dev) != ATA_ACER_LABS_ID)
return ENXIO;
if (!(ctlr->chip = ata_match_chip(dev, ids)))
return ENXIO;
ata_set_desc(dev);
ctlr->chipinit = ata_ali_chipinit;
ctlr->chipdeinit = ata_ali_chipdeinit;
return (BUS_PROBE_DEFAULT);
}
static int
ata_ali_chipinit(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(dev);
struct ali_sata_resources *res;
int i, rid;
if (ata_setup_interrupt(dev, ata_generic_intr))
return ENXIO;
switch (ctlr->chip->cfg2) {
case ALI_SATA:
ctlr->channels = ctlr->chip->cfg1;
ctlr->ch_attach = ata_ali_sata_ch_attach;
ctlr->ch_detach = ata_pci_ch_detach;
ctlr->setmode = ata_sata_setmode;
ctlr->getrev = ata_sata_getrev;
/* AHCI mode is correctly supported only on the ALi 5288. */
if ((ctlr->chip->chipid == ATA_ALI_5288) &&
(ata_ahci_chipinit(dev) != ENXIO))
return 0;
/* Allocate resources for later use by channel attach routines. */
res = malloc(sizeof(struct ali_sata_resources), M_ATAPCI, M_WAITOK);
for (i = 0; i < 4; i++) {
rid = PCIR_BAR(i);
res->bars[i] = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,
RF_ACTIVE);
if (res->bars[i] == NULL) {
device_printf(dev, "Failed to allocate BAR %d\n", i);
for (i--; i >=0; i--)
bus_release_resource(dev, SYS_RES_IOPORT,
PCIR_BAR(i), res->bars[i]);
free(res, M_TEMP);
return ENXIO;
}
}
ctlr->chipset_data = res;
break;
case ALI_NEW:
/* use device interrupt as byte count end */
pci_write_config(dev, 0x4a, pci_read_config(dev, 0x4a, 1) | 0x20, 1);
/* enable cable detection and UDMA support on revisions < 0xc7 */
if (ctlr->chip->chiprev < 0xc7)
pci_write_config(dev, 0x4b, pci_read_config(dev, 0x4b, 1) |
0x09, 1);
/* enable ATAPI UDMA mode (even if we are going to do PIO) */
pci_write_config(dev, 0x53, pci_read_config(dev, 0x53, 1) |
(ctlr->chip->chiprev >= 0xc7 ? 0x03 : 0x01), 1);
/* only chips with revision > 0xc4 can do 48bit DMA */
if (ctlr->chip->chiprev <= 0xc4)
device_printf(dev,
"using PIO transfers above 137GB as workaround for "
"48bit DMA access bug, expect reduced performance\n");
ctlr->ch_attach = ata_ali_ch_attach;
ctlr->ch_detach = ata_pci_ch_detach;
ctlr->reset = ata_ali_reset;
ctlr->setmode = ata_ali_setmode;
break;
case ALI_OLD:
/* deactivate the ATAPI FIFO and enable ATAPI UDMA */
pci_write_config(dev, 0x53, pci_read_config(dev, 0x53, 1) | 0x03, 1);
ctlr->setmode = ata_ali_setmode;
break;
}
return 0;
}
static int
ata_ali_chipdeinit(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(dev);
struct ali_sata_resources *res;
int i;
if (ctlr->chip->cfg2 == ALI_SATA) {
res = ctlr->chipset_data;
for (i = 0; i < 4; i++) {
if (res->bars[i] != NULL) {
bus_release_resource(dev, SYS_RES_IOPORT,
PCIR_BAR(i), res->bars[i]);
}
}
free(res, M_ATAPCI);
ctlr->chipset_data = NULL;
}
return (0);
}
static int
ata_ali_ch_attach(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
struct ata_channel *ch = device_get_softc(dev);
/* setup the usual register normal pci style */
if (ata_pci_ch_attach(dev))
return ENXIO;
if (ctlr->chip->cfg2 & ALI_NEW && ctlr->chip->chiprev < 0xc7)
ch->flags |= ATA_CHECKS_CABLE;
/* older chips can't do 48bit DMA transfers */
if (ctlr->chip->chiprev <= 0xc4) {
ch->flags |= ATA_NO_48BIT_DMA;
if (ch->dma.max_iosize > 256 * 512)
ch->dma.max_iosize = 256 * 512;
}
#ifdef ATA_CAM
if (ctlr->chip->cfg2 & ALI_NEW)
ch->flags |= ATA_NO_ATAPI_DMA;
#endif
return 0;
}
static int
ata_ali_sata_ch_attach(device_t dev)
{
device_t parent = device_get_parent(dev);
struct ata_pci_controller *ctlr = device_get_softc(parent);
struct ata_channel *ch = device_get_softc(dev);
struct ali_sata_resources *res;
struct resource *io = NULL, *ctlio = NULL;
int unit01 = (ch->unit & 1), unit10 = (ch->unit & 2);
int i;
res = ctlr->chipset_data;
if (unit01) {
io = res->bars[2];
ctlio = res->bars[3];
} else {
io = res->bars[0];
ctlio = res->bars[1];
}
ata_pci_dmainit(dev);
for (i = ATA_DATA; i <= ATA_COMMAND; i ++) {
ch->r_io[i].res = io;
ch->r_io[i].offset = i + (unit10 ? 8 : 0);
}
ch->r_io[ATA_CONTROL].res = ctlio;
ch->r_io[ATA_CONTROL].offset = 2 + (unit10 ? 4 : 0);
ch->r_io[ATA_IDX_ADDR].res = io;
ata_default_registers(dev);
if (ctlr->r_res1) {
for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) {
ch->r_io[i].res = ctlr->r_res1;
ch->r_io[i].offset = (i - ATA_BMCMD_PORT)+(ch->unit * ATA_BMIOSIZE);
}
}
ch->flags |= ATA_NO_SLAVE;
ch->flags |= ATA_SATA;
/* XXX SOS PHY handling awkward in ALI chip not supported yet */
ata_pci_hw(dev);
return 0;
}
static void
ata_ali_reset(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 nchildren, i;
ata_generic_reset(dev);
/*
* workaround for datacorruption bug found on at least SUN Blade-100
* find the ISA function on the southbridge and disable then enable
* the ATA channel tristate buffer
*/
if (ctlr->chip->chiprev == 0xc3 || ctlr->chip->chiprev == 0xc2) {
if (!device_get_children(GRANDPARENT(dev), &children, &nchildren)) {
for (i = 0; i < nchildren; i++) {
if (pci_get_devid(children[i]) == ATA_ALI_1533) {
pci_write_config(children[i], 0x58,
pci_read_config(children[i], 0x58, 1) &
~(0x04 << ch->unit), 1);
pci_write_config(children[i], 0x58,
pci_read_config(children[i], 0x58, 1) |
(0x04 << ch->unit), 1);
break;
}
}
free(children, M_TEMP);
}
}
}
static int
ata_ali_setmode(device_t dev, int target, int mode)
{
device_t parent = device_get_parent(dev);
struct ata_pci_controller *ctlr = device_get_softc(parent);
struct ata_channel *ch = device_get_softc(dev);
int devno = (ch->unit << 1) + target;
int piomode;
static const uint32_t piotimings[] =
{ 0x006d0003, 0x00580002, 0x00440001, 0x00330001,
0x00310001, 0x006d0003, 0x00330001, 0x00310001 };
static const uint8_t udma[] = {0x0c, 0x0b, 0x0a, 0x09, 0x08, 0x0f,
0x0d};
uint32_t word54;
mode = min(mode, ctlr->chip->max_dma);
if (ctlr->chip->cfg2 & ALI_NEW && ctlr->chip->chiprev < 0xc7) {
if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
pci_read_config(parent, 0x4a, 1) & (1 << ch->unit)) {
ata_print_cable(dev, "controller");
mode = ATA_UDMA2;
}
}
if (ctlr->chip->cfg2 & ALI_OLD) {
/* doesn't support ATAPI DMA on write */
ch->flags |= ATA_ATAPI_DMA_RO;
if (ch->devices & ATA_ATAPI_MASTER &&
ch->devices & ATA_ATAPI_SLAVE) {
/* doesn't support ATAPI DMA on two ATAPI devices */
device_printf(dev, "two atapi devices on this channel,"
" no DMA\n");
mode = min(mode, ATA_PIO_MAX);
}
}
/* Set UDMA mode */
word54 = pci_read_config(parent, 0x54, 4);
if (mode >= ATA_UDMA0) {
word54 &= ~(0x000f000f << (devno << 2));
word54 |= (((udma[mode&ATA_MODE_MASK]<<16)|0x05)<<(devno<<2));
piomode = ATA_PIO4;
}
else {
word54 &= ~(0x0008000f << (devno << 2));
piomode = mode;
}
pci_write_config(parent, 0x54, word54, 4);
/* Set PIO/WDMA mode */
pci_write_config(parent, 0x58 + (ch->unit << 2),
piotimings[ata_mode2idx(piomode)], 4);
return (mode);
}
ATA_DECLARE_DRIVER(ata_ali);
MODULE_DEPEND(ata_ali, ata_ahci, 1, 1, 1);