718cf2ccb9
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
160 lines
4.9 KiB
C
160 lines
4.9 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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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 <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 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_LOW_PRIORITY);
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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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