ReactOS 0.4.15-dev-7654-g6bc40d3
hwacpi.c
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1/*
2 * FreeLoader
3 *
4 * Copyright (C) 2004 Eric Kohl
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 */
20
21#include <freeldr.h>
22
23#include <debug.h>
25
27
30{
31 PUCHAR Ptr;
32
33 /* Find the 'Root System Descriptor Table Pointer' */
34 Ptr = (PUCHAR)0xE0000;
35 while ((ULONG_PTR)Ptr < 0x100000)
36 {
37 if (!memcmp(Ptr, "RSD PTR ", 8))
38 {
39 TRACE("ACPI supported\n");
40
41 return (PRSDP_DESCRIPTOR)Ptr;
42 }
43
44 Ptr = (PUCHAR)((ULONG_PTR)Ptr + 0x10);
45 }
46
47 TRACE("ACPI not supported\n");
48
49 return NULL;
50}
51
52
53VOID
55{
57 PCM_PARTIAL_RESOURCE_LIST PartialResourceList;
58 PCM_PARTIAL_RESOURCE_DESCRIPTOR PartialDescriptor;
60 PACPI_BIOS_DATA AcpiBiosData;
62
63 Rsdp = FindAcpiBios();
64
65 if (Rsdp)
66 {
67 /* Set up the flag in the loader block */
69
70 /* Calculate the table size */
72 sizeof(ACPI_BIOS_DATA) - sizeof(BIOS_MEMORY_MAP);
73
74 /* Set 'Configuration Data' value */
75 PartialResourceList =
78 if (PartialResourceList == NULL)
79 {
80 ERR("Failed to allocate resource descriptor\n");
81 return;
82 }
83
84 RtlZeroMemory(PartialResourceList, sizeof(CM_PARTIAL_RESOURCE_LIST) + TableSize);
85 PartialResourceList->Version = 0;
86 PartialResourceList->Revision = 0;
87 PartialResourceList->Count = 1;
88
89 PartialDescriptor = &PartialResourceList->PartialDescriptors[0];
90 PartialDescriptor->Type = CmResourceTypeDeviceSpecific;
92 PartialDescriptor->u.DeviceSpecificData.DataSize = TableSize;
93
94 /* Fill the table */
95 AcpiBiosData = (PACPI_BIOS_DATA)&PartialResourceList->PartialDescriptors[1];
96
97 if (Rsdp->revision > 0)
98 {
99 TRACE("ACPI >1.0, using XSDT address\n");
100 AcpiBiosData->RSDTAddress.QuadPart = Rsdp->xsdt_physical_address;
101 }
102 else
103 {
104 TRACE("ACPI 1.0, using RSDT address\n");
105 AcpiBiosData->RSDTAddress.LowPart = Rsdp->rsdt_physical_address;
106 }
107
108 AcpiBiosData->Count = PcBiosMapCount;
109 memcpy(AcpiBiosData->MemoryMap, PcBiosMemoryMap,
111
112 TRACE("RSDT %p, data size %x\n", Rsdp->rsdt_physical_address,
113 TableSize);
114
115 /* Create new bus key */
116 FldrCreateComponentKey(SystemKey,
119 0,
120 0,
121 0xFFFFFFFF,
122 "ACPI BIOS",
123 PartialResourceList,
125 &BiosKey);
126
127 /* Increment bus number */
128 (*BusNumber)++;
129 }
130}
131
132/* EOF */
unsigned char BOOLEAN
int memcmp(void *Buffer1, void *Buffer2, ACPI_SIZE Count)
Definition: utclib.c:112
VOID FldrCreateComponentKey(_In_ PCONFIGURATION_COMPONENT_DATA SystemNode, _In_ CONFIGURATION_CLASS Class, _In_ CONFIGURATION_TYPE Type, _In_ IDENTIFIER_FLAG Flags, _In_ ULONG Key, _In_ ULONG Affinity, _In_ PCSTR IdentifierString, _In_ PCM_PARTIAL_RESOURCE_LIST ResourceList, _In_ ULONG Size, _Out_ PCONFIGURATION_COMPONENT_DATA *ComponentKey)
Definition: archwsup.c:198
VOID DetectAcpiBios(PCONFIGURATION_COMPONENT_DATA SystemKey, ULONG *BusNumber)
Definition: hwacpi.c:54
BOOLEAN AcpiPresent
Definition: hwacpi.c:26
static PRSDP_DESCRIPTOR FindAcpiBios(VOID)
Definition: hwacpi.c:29
#define ERR(fmt,...)
Definition: debug.h:110
#define DBG_DEFAULT_CHANNEL(ch)
Definition: debug.h:103
FORCEINLINE PVOID FrLdrHeapAlloc(SIZE_T MemorySize, ULONG Tag)
Definition: mm.h:174
#define NULL
Definition: types.h:112
#define TRUE
Definition: types.h:120
#define FALSE
Definition: types.h:117
_Must_inspect_result_ _In_ PFSRTL_PER_STREAM_CONTEXT Ptr
Definition: fsrtlfuncs.h:898
#define CmResourceTypeDeviceSpecific
Definition: hwresource.cpp:127
if(dx< 0)
Definition: linetemp.h:194
#define memcpy(s1, s2, n)
Definition: mkisofs.h:878
struct _ACPI_BIOS_DATA * PACPI_BIOS_DATA
ULONG PcBiosMapCount
Definition: pcmem.c:38
BIOS_MEMORY_MAP PcBiosMemoryMap[MAX_BIOS_DESCRIPTORS]
Definition: pcmem.c:37
@ AdapterClass
Definition: arc.h:93
@ MultiFunctionAdapter
Definition: arc.h:116
#define TRACE(s)
Definition: solgame.cpp:4
ULONG rsdt_physical_address
Definition: winldr.h:26
UCHAR revision
Definition: winldr.h:25
ULONGLONG xsdt_physical_address
Definition: winldr.h:28
PHYSICAL_ADDRESS RSDTAddress
Definition: pcbios.h:77
BIOS_MEMORY_MAP MemoryMap[1]
Definition: pcbios.h:79
ULONGLONG Count
Definition: pcbios.h:78
union _CM_PARTIAL_RESOURCE_DESCRIPTOR::@394 u
struct _CM_PARTIAL_RESOURCE_DESCRIPTOR::@394::@403 DeviceSpecificData
CM_PARTIAL_RESOURCE_DESCRIPTOR PartialDescriptors[1]
Definition: hwresource.cpp:119
#define RtlZeroMemory(Destination, Length)
Definition: typedefs.h:262
uint32_t ULONG_PTR
Definition: typedefs.h:65
unsigned char * PUCHAR
Definition: typedefs.h:53
uint32_t ULONG
Definition: typedefs.h:59
#define TAG_HW_RESOURCE_LIST
Definition: uefidisk.c:15
LONGLONG QuadPart
Definition: typedefs.h:114
ULONG LowPart
Definition: typedefs.h:106
@ CmResourceShareUndetermined
Definition: cmtypes.h:240
_In_opt_ PUNICODE_STRING _In_ PDRIVER_OBJECT _In_ PDEVICE_OBJECT _In_ INTERFACE_TYPE _In_ ULONG BusNumber
Definition: halfuncs.h:160
_Must_inspect_result_ typedef _Out_ PULONG TableSize
Definition: iotypes.h:4327