013bf140e5
Legacy ata(4) -> BUS_PROBE_LOW_PRIORITY; more functional ahci(4), siis(4), mvs(4) -> BUS_PROBE_DEFAULT; BUS_PROBE_VENDOR leave for vendor drivers. MFC after: 2 weeks
198 lines
6.1 KiB
C
198 lines
6.1 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 <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_acard_chipinit(device_t dev);
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static int ata_acard_ch_attach(device_t dev);
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static int ata_acard_status(device_t dev);
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static int ata_acard_850_setmode(device_t dev, int target, int mode);
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static int ata_acard_86X_setmode(device_t dev, int target, int mode);
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/* misc defines */
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#define ATP_OLD 1
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/*
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* Acard chipset support functions
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*/
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static int
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ata_acard_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_ATP850R, 0, ATP_OLD, 0x00, ATA_UDMA2, "ATP850" },
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{ ATA_ATP860A, 0, 0, 0x00, ATA_UDMA4, "ATP860A" },
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{ ATA_ATP860R, 0, 0, 0x00, ATA_UDMA4, "ATP860R" },
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{ ATA_ATP865A, 0, 0, 0x00, ATA_UDMA6, "ATP865A" },
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{ ATA_ATP865R, 0, 0, 0x00, ATA_UDMA6, "ATP865R" },
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{ 0, 0, 0, 0, 0, 0}};
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if (pci_get_vendor(dev) != ATA_ACARD_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_acard_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_acard_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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ctlr->ch_attach = ata_acard_ch_attach;
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ctlr->ch_detach = ata_pci_ch_detach;
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if (ctlr->chip->cfg1 == ATP_OLD) {
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ctlr->setmode = ata_acard_850_setmode;
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/* Work around the lack of channel serialization in ATA_CAM. */
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ctlr->channels = 1;
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device_printf(dev, "second channel ignored\n");
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}
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else
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ctlr->setmode = ata_acard_86X_setmode;
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return 0;
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}
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static int
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ata_acard_ch_attach(device_t dev)
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{
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struct ata_channel *ch = device_get_softc(dev);
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/* setup the usual register normal pci style */
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if (ata_pci_ch_attach(dev))
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return ENXIO;
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ch->hw.status = ata_acard_status;
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ch->flags |= ATA_NO_ATAPI_DMA;
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return 0;
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}
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static int
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ata_acard_status(device_t dev)
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{
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struct ata_channel *ch = device_get_softc(dev);
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if (ch->dma.flags & ATA_DMA_ACTIVE) {
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int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK;
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if ((bmstat & (ATA_BMSTAT_ACTIVE | ATA_BMSTAT_INTERRUPT)) !=
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ATA_BMSTAT_INTERRUPT)
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return 0;
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ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR);
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DELAY(1);
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ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
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ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
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DELAY(1);
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}
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if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) {
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DELAY(100);
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if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY)
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return 0;
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}
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return 1;
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}
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static int
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ata_acard_850_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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mode = min(mode, ctlr->chip->max_dma);
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/* XXX SOS missing WDMA0+1 + PIO modes */
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if (mode >= ATA_WDMA2) {
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u_int8_t reg54 = pci_read_config(parent, 0x54, 1);
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reg54 &= ~(0x03 << (devno << 1));
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if (mode >= ATA_UDMA0)
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reg54 |= (((mode & ATA_MODE_MASK) + 1) << (devno << 1));
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pci_write_config(parent, 0x54, reg54, 1);
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pci_write_config(parent, 0x4a, 0xa6, 1);
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pci_write_config(parent, 0x40 + (devno << 1), 0x0301, 2);
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}
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/* we could set PIO mode timings, but we assume the BIOS did that */
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return (mode);
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}
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static int
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ata_acard_86X_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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mode = min(mode, ctlr->chip->max_dma);
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/* XXX SOS missing WDMA0+1 + PIO modes */
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if (mode >= ATA_WDMA2) {
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u_int16_t reg44 = pci_read_config(parent, 0x44, 2);
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reg44 &= ~(0x000f << (devno << 2));
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if (mode >= ATA_UDMA0)
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reg44 |= (((mode & ATA_MODE_MASK) + 1) << (devno << 2));
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pci_write_config(parent, 0x44, reg44, 2);
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pci_write_config(parent, 0x4a, 0xa6, 1);
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pci_write_config(parent, 0x40 + devno, 0x31, 1);
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}
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/* we could set PIO mode timings, but we assume the BIOS did that */
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return (mode);
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}
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ATA_DECLARE_DRIVER(ata_acard);
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