29658c96ce
them, please let me know if not). Most of these are of the form: static const struct bzzt_type { [...list of members...] } const bzzt_devs[] = { [...list of initializers...] }; The second const is unnecessary, as arrays cannot be modified anyway, and if the elements are const, the whole thing is const automatically (e.g. it is placed in .rodata). I have verified this does not change the binary output of a full kernel build (except for build timestamps embedded in the object files). Reviewed by: yongari, marius MFC after: 1 week
159 lines
4.9 KiB
C
159 lines
4.9 KiB
C
/*-
|
|
* 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);
|