1 /*-
2 * Copyright (c) 2002 Mitsaru Iwasaki
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
27 /*
28 * ACPI Table interfaces
29 */
30
31 #include <sys/param.h>
32 #include <sys/endian.h>
33 #include <sys/kernel.h>
34 #include <sys/linker.h>
35
36 #include <contrib/dev/acpica/include/acpi.h>
37 #include <contrib/dev/acpica/include/aclocal.h>
38 #include <contrib/dev/acpica/include/actables.h>
39
40 #undef _COMPONENT
41 #define _COMPONENT ACPI_TABLES
42
43 static char acpi_osname[128];
44 TUNABLE_STR("hw.acpi.osname", acpi_osname, sizeof(acpi_osname));
45
46 ACPI_STATUS
AcpiOsPredefinedOverride(const ACPI_PREDEFINED_NAMES * InitVal,ACPI_STRING * NewVal)47 AcpiOsPredefinedOverride(const ACPI_PREDEFINED_NAMES *InitVal,
48 ACPI_STRING *NewVal)
49 {
50
51 if (InitVal == NULL || NewVal == NULL)
52 return (AE_BAD_PARAMETER);
53
54 *NewVal = NULL;
55 if (ACPI_COMPARE_NAMESEG(InitVal->Name, "_OS_") &&
56 InitVal->Type == ACPI_TYPE_STRING && strlen(acpi_osname) > 0) {
57 printf("ACPI: Overriding _OS definition with \"%s\"\n",
58 acpi_osname);
59 *NewVal = acpi_osname;
60 }
61 return (AE_OK);
62 }
63
64 ACPI_STATUS
AcpiOsTableOverride(ACPI_TABLE_HEADER * ExistingTable,ACPI_TABLE_HEADER ** NewTable)65 AcpiOsTableOverride(ACPI_TABLE_HEADER *ExistingTable,
66 ACPI_TABLE_HEADER **NewTable)
67 {
68 char modname[] = "acpi_dsdt";
69 caddr_t acpi_table;
70 ACPI_TABLE_HEADER *hdr;
71 size_t sz;
72
73 if (ExistingTable == NULL || NewTable == NULL)
74 return (AE_BAD_PARAMETER);
75
76 *NewTable = NULL;
77 if (!ACPI_COMPARE_NAMESEG(ExistingTable->Signature, ACPI_SIG_DSDT))
78 #ifdef notyet
79 for (int i = 0; i < ACPI_NAMESEG_SIZE; i++)
80 modname[i + 5] = tolower(ExistingTable->Signature[i]);
81 #else
82 return (AE_SUPPORT);
83 #endif
84 acpi_table = preload_search_by_type(modname);
85 if (acpi_table == NULL)
86 return (AE_NOT_FOUND);
87 hdr = preload_fetch_addr(acpi_table);
88 sz = preload_fetch_size(acpi_table);
89 if (hdr == NULL || sz == 0)
90 return (AE_ERROR);
91 #ifndef notyet
92 /* Assume SSDT is installed with DSDT. */
93 AcpiGbl_DisableSsdtTableInstall = TRUE;
94 #endif
95 *NewTable = hdr;
96 return (AE_OK);
97 }
98
99 ACPI_STATUS
AcpiOsPhysicalTableOverride(ACPI_TABLE_HEADER * ExistingTable,ACPI_PHYSICAL_ADDRESS * NewAddress,UINT32 * NewTableLength)100 AcpiOsPhysicalTableOverride(ACPI_TABLE_HEADER *ExistingTable,
101 ACPI_PHYSICAL_ADDRESS *NewAddress, UINT32 *NewTableLength)
102 {
103
104 return (AE_SUPPORT);
105 }
106