1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
|
/** @file
AML Update Resource Data.
Copyright (c) 2020, Arm Limited. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
/* Even though this file has access to the internal Node definition,
i.e. AML_ROOT_NODE, AML_OBJECT_NODE, etc. Only the external node
handle types should be used, i.e. AML_NODE_HANDLE, AML_ROOT_NODE_HANDLE,
etc.
Indeed, the functions in the "Api" folder should be implemented only
using the "safe" functions available in the "Include" folder. This
makes the functions available in the "Api" folder easy to export.
*/
#include <AmlNodeDefines.h>
#include <AmlCoreInterface.h>
#include <AmlInclude.h>
#include <Api/AmlApiHelper.h>
#include <CodeGen/AmlResourceDataCodeGen.h>
/** Update the first interrupt of an Interrupt resource data node.
The flags of the Interrupt resource data are left unchanged.
The InterruptRdNode corresponds to the Resource Data created by the
"Interrupt ()" ASL macro. It is an Extended Interrupt Resource Data.
See ACPI 6.3 specification, s6.4.3.6 "Extended Interrupt Descriptor"
for more information about Extended Interrupt Resource Data.
@param [in] InterruptRdNode Pointer to the an extended interrupt
resource data node.
@param [in] Irq Interrupt value to update.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Out of resources.
**/
EFI_STATUS
EFIAPI
AmlUpdateRdInterrupt (
IN AML_DATA_NODE_HANDLE InterruptRdNode,
IN UINT32 Irq
)
{
EFI_STATUS Status;
UINT32 * FirstInterrupt;
UINT8 * QueryBuffer;
UINT32 QueryBufferSize;
if ((InterruptRdNode == NULL) ||
(AmlGetNodeType ((AML_NODE_HANDLE)InterruptRdNode) != EAmlNodeData) ||
(!AmlNodeHasDataType (
InterruptRdNode,
EAmlNodeDataTypeResourceData)) ||
(!AmlNodeHasRdDataType (
InterruptRdNode,
AML_RD_BUILD_LARGE_DESC_ID (
ACPI_LARGE_EXTENDED_IRQ_DESCRIPTOR_NAME)))) {
ASSERT (0);
return EFI_INVALID_PARAMETER;
}
QueryBuffer = NULL;
// Get the size of the InterruptRdNode buffer.
Status = AmlGetDataNodeBuffer (
InterruptRdNode,
NULL,
&QueryBufferSize
);
if (EFI_ERROR (Status)) {
ASSERT (0);
return Status;
}
// Check the Buffer is large enough.
if (QueryBufferSize < sizeof (EFI_ACPI_EXTENDED_INTERRUPT_DESCRIPTOR)) {
ASSERT (0);
return EFI_INVALID_PARAMETER;
}
// Allocate a buffer to fetch the data.
QueryBuffer = AllocatePool (QueryBufferSize);
if (QueryBuffer == NULL) {
ASSERT (0);
return EFI_OUT_OF_RESOURCES;
}
// Get the data.
Status = AmlGetDataNodeBuffer (
InterruptRdNode,
QueryBuffer,
&QueryBufferSize
);
if (EFI_ERROR (Status)) {
ASSERT (0);
goto error_handler;
}
// Get the address of the first interrupt field.
FirstInterrupt =
((EFI_ACPI_EXTENDED_INTERRUPT_DESCRIPTOR*)QueryBuffer)->InterruptNumber;
*FirstInterrupt = Irq;
// Update the InterruptRdNode buffer.
Status = AmlUpdateDataNode (
InterruptRdNode,
EAmlNodeDataTypeResourceData,
QueryBuffer,
QueryBufferSize
);
if (EFI_ERROR (Status)) {
ASSERT (0);
}
error_handler:
if (QueryBuffer != NULL) {
FreePool (QueryBuffer);
}
return Status;
}
/** Update the interrupt list of an interrupt resource data node.
The InterruptRdNode corresponds to the Resource Data created by the
"Interrupt ()" ASL function. It is an Extended Interrupt Resource Data.
See ACPI 6.3 specification, s6.4.3.6 "Extended Interrupt Descriptor"
for more information about Extended Interrupt Resource Data.
@param [in] InterruptRdNode Pointer to the an extended interrupt
resource data node.
@param [in] ResourceConsumer The device consumes the specified interrupt
or produces it for use by a child device.
@param [in] EdgeTriggered The interrupt is edge triggered or
level triggered.
@param [in] ActiveLow The interrupt is active-high or active-low.
@param [in] Shared The interrupt can be shared with other
devices or not (Exclusive).
@param [in] IrqList Interrupt list. Must be non-NULL.
@param [in] IrqCount Interrupt count. Must be non-zero.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Out of resources.
**/
EFI_STATUS
EFIAPI
AmlUpdateRdInterruptEx (
IN AML_DATA_NODE_HANDLE InterruptRdNode,
IN BOOLEAN ResourceConsumer,
IN BOOLEAN EdgeTriggered,
IN BOOLEAN ActiveLow,
IN BOOLEAN Shared,
IN UINT32 * IrqList,
IN UINT8 IrqCount
)
{
EFI_STATUS Status;
EFI_ACPI_EXTENDED_INTERRUPT_DESCRIPTOR * RdInterrupt;
UINT32 * FirstInterrupt;
UINT8 * UpdateBuffer;
UINT16 UpdateBufferSize;
if ((InterruptRdNode == NULL) ||
(AmlGetNodeType ((AML_NODE_HANDLE)InterruptRdNode) != EAmlNodeData) ||
(!AmlNodeHasDataType (
InterruptRdNode,
EAmlNodeDataTypeResourceData)) ||
(!AmlNodeHasRdDataType (
InterruptRdNode,
AML_RD_BUILD_LARGE_DESC_ID (
ACPI_LARGE_EXTENDED_IRQ_DESCRIPTOR_NAME))) ||
(IrqList == NULL) ||
(IrqCount == 0)) {
ASSERT (0);
return EFI_INVALID_PARAMETER;
}
UpdateBuffer = NULL;
UpdateBufferSize = sizeof (EFI_ACPI_EXTENDED_INTERRUPT_DESCRIPTOR) +
((IrqCount - 1) * sizeof (UINT32));
// Allocate a buffer to update the data.
UpdateBuffer = AllocatePool (UpdateBufferSize);
if (UpdateBuffer == NULL) {
ASSERT (0);
return EFI_OUT_OF_RESOURCES;
}
// Update the Resource Data information (structure size, interrupt count).
RdInterrupt = (EFI_ACPI_EXTENDED_INTERRUPT_DESCRIPTOR*)UpdateBuffer;
RdInterrupt->Header.Header.Byte =
AML_RD_BUILD_LARGE_DESC_ID (ACPI_LARGE_EXTENDED_IRQ_DESCRIPTOR_NAME);
RdInterrupt->Header.Length =
UpdateBufferSize - sizeof (ACPI_LARGE_RESOURCE_HEADER);
RdInterrupt->InterruptTableLength = IrqCount;
RdInterrupt->InterruptVectorFlags = (ResourceConsumer ? BIT0 : 0) |
(EdgeTriggered ? BIT1 : 0) |
(ActiveLow ? BIT2 : 0) |
(Shared ? BIT3 : 0);
// Get the address of the first interrupt field.
FirstInterrupt =
((EFI_ACPI_EXTENDED_INTERRUPT_DESCRIPTOR*)UpdateBuffer)->InterruptNumber;
// Copy the input list of interrupts.
CopyMem (FirstInterrupt, IrqList, (sizeof (UINT32) * IrqCount));
// Update the InterruptRdNode buffer.
Status = AmlUpdateDataNode (
InterruptRdNode,
EAmlNodeDataTypeResourceData,
UpdateBuffer,
UpdateBufferSize
);
if (EFI_ERROR (Status)) {
ASSERT (0);
}
// Cleanup
FreePool (UpdateBuffer);
return Status;
}
/** Update the base address and length of a QWord resource data node.
@param [in] QWordRdNode Pointer a QWord resource data
node.
@param [in] BaseAddress Base address.
@param [in] BaseAddressLength Base address length.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter.
@retval EFI_OUT_OF_RESOURCES Out of resources.
**/
EFI_STATUS
EFIAPI
AmlUpdateRdQWord (
IN AML_DATA_NODE_HANDLE QWordRdNode,
IN UINT64 BaseAddress,
IN UINT64 BaseAddressLength
)
{
EFI_STATUS Status;
EFI_ACPI_QWORD_ADDRESS_SPACE_DESCRIPTOR * RdQWord;
UINT8 * QueryBuffer;
UINT32 QueryBufferSize;
if ((QWordRdNode == NULL) ||
(AmlGetNodeType ((AML_NODE_HANDLE)QWordRdNode) != EAmlNodeData) ||
(!AmlNodeHasDataType (QWordRdNode, EAmlNodeDataTypeResourceData)) ||
(!AmlNodeHasRdDataType (
QWordRdNode,
AML_RD_BUILD_LARGE_DESC_ID (
ACPI_LARGE_QWORD_ADDRESS_SPACE_DESCRIPTOR_NAME)))) {
ASSERT (0);
return EFI_INVALID_PARAMETER;
}
// Get the size of the QWordRdNode's buffer.
Status = AmlGetDataNodeBuffer (
QWordRdNode,
NULL,
&QueryBufferSize
);
if (EFI_ERROR (Status)) {
ASSERT (0);
return Status;
}
// Allocate a buffer to fetch the data.
QueryBuffer = AllocatePool (QueryBufferSize);
if (QueryBuffer == NULL) {
ASSERT (0);
return EFI_OUT_OF_RESOURCES;
}
// Get the data.
Status = AmlGetDataNodeBuffer (
QWordRdNode,
QueryBuffer,
&QueryBufferSize
);
if (EFI_ERROR (Status)) {
ASSERT (0);
goto error_handler;
}
RdQWord = (EFI_ACPI_QWORD_ADDRESS_SPACE_DESCRIPTOR*)QueryBuffer;
// Update the Base Address and Length.
RdQWord->AddrRangeMin = BaseAddress;
RdQWord->AddrRangeMax = BaseAddress + BaseAddressLength - 1;
RdQWord->AddrLen = BaseAddressLength;
// Update Base Address Resource Data node.
Status = AmlUpdateDataNode (
QWordRdNode,
EAmlNodeDataTypeResourceData,
QueryBuffer,
QueryBufferSize
);
if (EFI_ERROR (Status)) {
ASSERT (0);
}
error_handler:
if (QueryBuffer != NULL) {
FreePool (QueryBuffer);
}
return Status;
}
|
