142 lines
4.1 KiB
C
142 lines
4.1 KiB
C
/* $NetBSD: acpi_quirks.c,v 1.9 2007/12/09 20:27:53 jmcneill Exp $ */
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/*
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* Copyright 2002 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Frank van der Linden for Wasabi Systems, Inc.
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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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* 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: acpi_quirks.c,v 1.9 2007/12/09 20:27:53 jmcneill Exp $");
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#include "opt_acpi.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <sys/proc.h>
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#include <dev/acpi/acpica.h>
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#include <dev/acpi/acpireg.h>
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#include <dev/acpi/acpivar.h>
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static int acpi_rev_cmp(uint32_t, uint32_t, int);
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/*
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* XXX add more
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*/
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static struct acpi_quirk acpi_quirks[] = {
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{ ACPI_SIG_FADT, "PTLTD ", 0x06040000, AQ_LTE, " FACP ",
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ACPI_QUIRK_BROKEN },
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{ ACPI_SIG_FADT, "NVIDIA", 0x06040000, AQ_EQ, "CK8 ",
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ACPI_QUIRK_IRQ0 },
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};
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static int
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acpi_rev_cmp(uint32_t tabval, uint32_t wanted, int op)
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{
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switch (op) {
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case AQ_GT:
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if (tabval > wanted)
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return 0;
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else
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return 1;
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case AQ_LT:
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if (tabval < wanted)
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return 0;
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else
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return 1;
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case AQ_LTE:
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if (tabval <= wanted)
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return 0;
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else
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return 1;
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case AQ_GTE:
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if (tabval >= wanted)
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return 0;
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else
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return 1;
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case AQ_EQ:
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if (tabval == wanted)
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return 0;
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else
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return 1;
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}
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return 1;
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}
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/*
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* Simple function to search the quirk table. Only to be used after
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* AcpiLoadTables has been successfully called.
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*/
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int
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acpi_find_quirks(void)
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{
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int i, nquirks;
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struct acpi_quirk *aqp;
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ACPI_TABLE_HEADER fadt, dsdt, xsdt, *hdr;
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nquirks = sizeof(acpi_quirks) / sizeof(struct acpi_quirk);
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if (ACPI_FAILURE(AcpiGetTableHeader(ACPI_SIG_FADT, 0, &fadt)))
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memset(&fadt, 0, sizeof(fadt));
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if (ACPI_FAILURE(AcpiGetTableHeader(ACPI_SIG_DSDT, 0, &dsdt)))
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memset(&dsdt, 0, sizeof(dsdt));
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if (ACPI_FAILURE(AcpiGetTableHeader(ACPI_SIG_XSDT, 0, &xsdt)))
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memset(&xsdt, 0, sizeof(xsdt));
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for (i = 0; i < nquirks; i++) {
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aqp = &acpi_quirks[i];
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if (!strncmp(aqp->aq_tabletype, ACPI_SIG_DSDT, 4))
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hdr = &dsdt;
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else if (!strncmp(aqp->aq_tabletype, ACPI_SIG_XSDT, 4))
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hdr = &xsdt;
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else if (!strncmp(aqp->aq_tabletype, ACPI_SIG_FADT, 4))
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hdr = &fadt;
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else
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continue;
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if (strncmp(aqp->aq_oemid, hdr->OemId, strlen(aqp->aq_oemid)))
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continue;
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if (acpi_rev_cmp(aqp->aq_oemrev, hdr->OemRevision,
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aqp->aq_cmpop))
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continue;
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if (strncmp(aqp->aq_tabid, hdr->OemTableId,
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strlen(aqp->aq_tabid)))
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continue;
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return aqp->aq_quirks;
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}
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return 0;
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}
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