159 lines
4.9 KiB
C
159 lines
4.9 KiB
C
/*-
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* Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_ata.h"
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#include <sys/param.h>
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#include <sys/module.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/ata.h>
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#include <sys/bus.h>
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#include <sys/endian.h>
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#include <sys/malloc.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/sema.h>
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#include <sys/taskqueue.h>
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#include <vm/uma.h>
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#include <machine/stdarg.h>
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#include <machine/resource.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/ata/ata-all.h>
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#include <dev/ata/ata-pci.h>
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#include <ata_if.h>
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/* local prototypes */
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static int ata_amd_ch_attach(device_t dev);
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static int ata_amd_chipinit(device_t dev);
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static int ata_amd_setmode(device_t dev, int target, int mode);
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/* misc defines */
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#define AMD_BUG 0x01
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#define AMD_CABLE 0x02
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/*
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* Advanced Micro Devices (AMD) chipset support functions
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*/
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static int
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ata_amd_probe(device_t dev)
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{
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struct ata_pci_controller *ctlr = device_get_softc(dev);
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static const struct ata_chip_id const ids[] =
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{{ ATA_AMD756, 0x00, 0x00, 0, ATA_UDMA4, "756" },
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{ ATA_AMD766, 0x00, AMD_CABLE|AMD_BUG, 0, ATA_UDMA5, "766" },
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{ ATA_AMD768, 0x00, AMD_CABLE, 0, ATA_UDMA5, "768" },
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{ ATA_AMD8111, 0x00, AMD_CABLE, 0, ATA_UDMA6, "8111" },
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{ ATA_AMD5536, 0x00, 0x00, 0, ATA_UDMA5, "CS5536" },
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{ 0, 0, 0, 0, 0, 0}};
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if (pci_get_vendor(dev) != ATA_AMD_ID)
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return ENXIO;
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if (!(ctlr->chip = ata_match_chip(dev, ids)))
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return ENXIO;
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ata_set_desc(dev);
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ctlr->chipinit = ata_amd_chipinit;
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return (BUS_PROBE_DEFAULT);
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}
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static int
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ata_amd_chipinit(device_t dev)
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{
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struct ata_pci_controller *ctlr = device_get_softc(dev);
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if (ata_setup_interrupt(dev, ata_generic_intr))
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return ENXIO;
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/* disable/set prefetch, postwrite */
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if (ctlr->chip->cfg1 & AMD_BUG)
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pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) & 0x0f, 1);
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else
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pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) | 0xf0, 1);
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ctlr->ch_attach = ata_amd_ch_attach;
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ctlr->setmode = ata_amd_setmode;
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return 0;
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}
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static int
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ata_amd_setmode(device_t dev, int target, int mode)
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{
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device_t parent = device_get_parent(dev);
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struct ata_pci_controller *ctlr = device_get_softc(parent);
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struct ata_channel *ch = device_get_softc(dev);
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int devno = (ch->unit << 1) + target;
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int piomode;
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static const uint8_t timings[] =
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{ 0xa8, 0x65, 0x42, 0x22, 0x20, 0xa8, 0x22, 0x20 };
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static const uint8_t modes[] =
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{ 0xc2, 0xc1, 0xc0, 0xc4, 0xc5, 0xc6, 0xc7 };
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int reg = 0x53 - devno;
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mode = min(mode, ctlr->chip->max_dma);
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if (ctlr->chip->cfg1 & AMD_CABLE) {
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if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
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!(pci_read_config(parent, 0x42, 1) & (1 << devno))) {
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ata_print_cable(dev, "controller");
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mode = ATA_UDMA2;
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}
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}
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/* Set UDMA timings. */
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if (mode >= ATA_UDMA0) {
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pci_write_config(parent, reg, modes[mode & ATA_MODE_MASK], 1);
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piomode = ATA_PIO4;
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} else {
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pci_write_config(parent, reg, 0x8b, 1);
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piomode = mode;
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}
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/* Set WDMA/PIO timings. */
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pci_write_config(parent, reg - 0x08, timings[ata_mode2idx(piomode)], 1);
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return (mode);
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}
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static int
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ata_amd_ch_attach(device_t dev)
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{
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struct ata_pci_controller *ctlr;
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struct ata_channel *ch;
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int error;
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ctlr = device_get_softc(device_get_parent(dev));
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ch = device_get_softc(dev);
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error = ata_pci_ch_attach(dev);
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if (ctlr->chip->cfg1 & AMD_CABLE)
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ch->flags |= ATA_CHECKS_CABLE;
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return (error);
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}
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ATA_DECLARE_DRIVER(ata_amd);
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