1 /* $NetBSD: acpi_quirks.c,v 1.1 2003/05/15 21:29:50 fvdl Exp $ */ 2 3 /* 4 * Copyright 2002 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Frank van der Linden for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 #include <sys/cdefs.h> 39 40 __KERNEL_RCSID(0, "$NetBSD: acpi_quirks.c,v 1.1 2003/05/15 21:29:50 fvdl Exp $"); 41 42 #include "opt_acpi.h" 43 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/device.h> 47 #include <sys/malloc.h> 48 #include <sys/kernel.h> 49 #include <sys/proc.h> 50 51 #include <dev/acpi/acpica.h> 52 #include <dev/acpi/acpireg.h> 53 #include <dev/acpi/acpivar.h> 54 #include <dev/acpi/acpi_osd.h> 55 56 static struct acpi_quirk acpi_quirks[] = { 57 /* 58 * This implementation seems to be in widespread use, but 59 * unfortunately, on some systems, it constructs a PCI hierarchy 60 * that doesn't match reality at all (like on SuperMicro boards). 61 */ 62 { "PTLTD ", 0x06040000, ACPI_QUIRK_BADPCI | ACPI_QUIRK_BADIRQ }, 63 }; 64 65 /* 66 * Simple function to search the quirk table. Only to be used after 67 * AcpiLoadTables has been successfully called. 68 */ 69 int 70 acpi_find_quirks(void) 71 { 72 int i, nquirks; 73 struct acpi_quirk *aqp; 74 ACPI_TABLE_HEADER *ap; 75 76 ap = &AcpiGbl_XSDT->Header; 77 nquirks = sizeof(acpi_quirks) / sizeof(struct acpi_quirk); 78 79 for (i = 0; i < nquirks; i++) { 80 aqp = &acpi_quirks[i]; 81 if (!strncmp(aqp->aq_oemid, ap->OemId, strlen(aqp->aq_oemid)) && 82 aqp->aq_oemrev == ap->OemRevision) 83 return aqp->aq_quirks; 84 } 85 return 0; 86 } 87