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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("$FreeBSD$");
#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_amd_ch_attach(device_t dev);
static int ata_amd_chipinit(device_t dev);
static int ata_amd_setmode(device_t dev, int target, int mode);
/* misc defines */
#define AMD_BUG 0x01
#define AMD_CABLE 0x02
/*
* Advanced Micro Devices (AMD) chipset support functions
*/
static int
ata_amd_probe(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(dev);
static const struct ata_chip_id ids[] =
{{ ATA_AMD756, 0x00, 0x00, 0, ATA_UDMA4, "756" },
{ ATA_AMD766, 0x00, AMD_CABLE|AMD_BUG, 0, ATA_UDMA5, "766" },
{ ATA_AMD768, 0x00, AMD_CABLE, 0, ATA_UDMA5, "768" },
{ ATA_AMD8111, 0x00, AMD_CABLE, 0, ATA_UDMA6, "8111" },
{ ATA_AMD5536, 0x00, 0x00, 0, ATA_UDMA5, "CS5536" },
{ 0, 0, 0, 0, 0, 0}};
if (pci_get_vendor(dev) != ATA_AMD_ID)
return ENXIO;
if (!(ctlr->chip = ata_match_chip(dev, ids)))
return ENXIO;
ata_set_desc(dev);
ctlr->chipinit = ata_amd_chipinit;
return (BUS_PROBE_DEFAULT);
}
static int
ata_amd_chipinit(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(dev);
if (ata_setup_interrupt(dev, ata_generic_intr))
return ENXIO;
/* disable/set prefetch, postwrite */
if (ctlr->chip->cfg1 & AMD_BUG)
pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) & 0x0f, 1);
else
pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) | 0xf0, 1);
ctlr->ch_attach = ata_amd_ch_attach;
ctlr->setmode = ata_amd_setmode;
return 0;
}
static int
ata_amd_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 uint8_t timings[] =
{ 0xa8, 0x65, 0x42, 0x22, 0x20, 0xa8, 0x22, 0x20 };
static const uint8_t modes[] =
{ 0xc2, 0xc1, 0xc0, 0xc4, 0xc5, 0xc6, 0xc7 };
int reg = 0x53 - devno;
mode = min(mode, ctlr->chip->max_dma);
if (ctlr->chip->cfg1 & AMD_CABLE) {
if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
!(pci_read_config(parent, 0x42, 1) & (1 << devno))) {
ata_print_cable(dev, "controller");
mode = ATA_UDMA2;
}
}
/* Set UDMA timings. */
if (mode >= ATA_UDMA0) {
pci_write_config(parent, reg, modes[mode & ATA_MODE_MASK], 1);
piomode = ATA_PIO4;
} else {
pci_write_config(parent, reg, 0x8b, 1);
piomode = mode;
}
/* Set WDMA/PIO timings. */
pci_write_config(parent, reg - 0x08, timings[ata_mode2idx(piomode)], 1);
return (mode);
}
static int
ata_amd_ch_attach(device_t dev)
{
struct ata_pci_controller *ctlr;
struct ata_channel *ch;
int error;
ctlr = device_get_softc(device_get_parent(dev));
ch = device_get_softc(dev);
error = ata_pci_ch_attach(dev);
if (ctlr->chip->cfg1 & AMD_CABLE)
ch->flags |= ATA_CHECKS_CABLE;
return (error);
}
ATA_DECLARE_DRIVER(ata_amd);
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