acpi_machdep.c revision 209779 
1/*-
2 * Copyright (c) 2001 Doug Rabson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/ia64/acpica/acpi_machdep.c 209779 2010-07-07 20:07:33Z marcel $
27 */
28
29#include <sys/param.h>
30#include <sys/bus.h>
31#include <machine/md_var.h>
32#include <machine/pal.h>
33
34#include <contrib/dev/acpica/include/acpi.h>
35#include <contrib/dev/acpica/include/actables.h>
36#include <dev/acpica/acpivar.h>
37
38int
39acpi_machdep_init(device_t dev)
40{
41	struct	acpi_softc *sc;
42
43        sc = device_get_softc(dev);
44
45	acpi_install_wakeup_handler(sc);
46
47	return (0);
48}
49
50int
51acpi_machdep_quirks(int *quirks)
52{
53	return (0);
54}
55
56void
57acpi_cpu_c1()
58{
59	ia64_call_pal_static(PAL_HALT_LIGHT, 0, 0, 0);
60}
61
62void *
63acpi_find_table(const char *sig)
64{
65	ACPI_PHYSICAL_ADDRESS rsdp_ptr;
66	ACPI_TABLE_RSDP *rsdp;
67	ACPI_TABLE_XSDT *xsdt;
68	ACPI_TABLE_HEADER *table;
69	UINT64 addr;
70	u_int i, count;
71
72	if ((rsdp_ptr = AcpiOsGetRootPointer()) == 0)
73		return (NULL);
74
75	rsdp = (ACPI_TABLE_RSDP *)IA64_PHYS_TO_RR7(rsdp_ptr);
76	xsdt = (ACPI_TABLE_XSDT *)IA64_PHYS_TO_RR7(rsdp->XsdtPhysicalAddress);
77
78	count = (UINT64 *)((char *)xsdt + xsdt->Header.Length) -
79	    xsdt->TableOffsetEntry;
80
81	for (i = 0; i < count; i++) {
82		addr = xsdt->TableOffsetEntry[i];
83		table = (ACPI_TABLE_HEADER *)IA64_PHYS_TO_RR7(addr);
84
85		if (strncmp(table->Signature, sig, ACPI_NAME_SIZE) != 0)
86			continue;
87		if (ACPI_FAILURE(AcpiTbChecksum((void *)table, table->Length)))
88			continue;
89
90		return (table);
91	}
92
93	return (NULL);
94}
95