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8#include <acpi/acpi.h>
9#include "accommon.h"
10#include "acresrc.h"
11
12#define _COMPONENT ACPI_RESOURCES
13ACPI_MODULE_NAME("rslist")
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29acpi_status
30acpi_rs_convert_aml_to_resources(u8 * aml,
31 u32 length,
32 u32 offset, u8 resource_index, void **context)
33{
34 struct acpi_resource **resource_ptr =
35 ACPI_CAST_INDIRECT_PTR(struct acpi_resource, context);
36 struct acpi_resource *resource;
37 union aml_resource *aml_resource;
38 struct acpi_rsconvert_info *conversion_table;
39 acpi_status status;
40
41 ACPI_FUNCTION_TRACE(rs_convert_aml_to_resources);
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46
47 resource = *resource_ptr;
48 if (ACPI_IS_MISALIGNED(resource)) {
49 ACPI_WARNING((AE_INFO,
50 "Misaligned resource pointer %p", resource));
51 }
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53
54
55 aml_resource = ACPI_CAST_PTR(union aml_resource, aml);
56
57 if (acpi_ut_get_resource_type(aml) == ACPI_RESOURCE_NAME_SERIAL_BUS) {
58 if (aml_resource->common_serial_bus.type >
59 AML_RESOURCE_MAX_SERIALBUSTYPE) {
60 conversion_table = NULL;
61 } else {
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63
64 conversion_table =
65 acpi_gbl_convert_resource_serial_bus_dispatch
66 [aml_resource->common_serial_bus.type];
67 }
68 } else {
69 conversion_table =
70 acpi_gbl_get_resource_dispatch[resource_index];
71 }
72
73 if (!conversion_table) {
74 ACPI_ERROR((AE_INFO,
75 "Invalid/unsupported resource descriptor: Type 0x%2.2X",
76 resource_index));
77 return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE);
78 }
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81
82 status =
83 acpi_rs_convert_aml_to_resource(resource, aml_resource,
84 conversion_table);
85 if (ACPI_FAILURE(status)) {
86 ACPI_EXCEPTION((AE_INFO, status,
87 "Could not convert AML resource (Type 0x%X)",
88 *aml));
89 return_ACPI_STATUS(status);
90 }
91
92 if (!resource->length) {
93 ACPI_EXCEPTION((AE_INFO, status,
94 "Zero-length resource returned from RsConvertAmlToResource"));
95 }
96
97 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
98 "Type %.2X, AmlLength %.2X InternalLength %.2X\n",
99 acpi_ut_get_resource_type(aml), length,
100 resource->length));
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104 *resource_ptr = ACPI_NEXT_RESOURCE(resource);
105 return_ACPI_STATUS(AE_OK);
106}
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127acpi_status
128acpi_rs_convert_resources_to_aml(struct acpi_resource *resource,
129 acpi_size aml_size_needed, u8 * output_buffer)
130{
131 u8 *aml = output_buffer;
132 u8 *end_aml = output_buffer + aml_size_needed;
133 struct acpi_rsconvert_info *conversion_table;
134 acpi_status status;
135
136 ACPI_FUNCTION_TRACE(rs_convert_resources_to_aml);
137
138
139
140 while (aml < end_aml) {
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144 if (resource->type > ACPI_RESOURCE_TYPE_MAX) {
145 ACPI_ERROR((AE_INFO,
146 "Invalid descriptor type (0x%X) in resource list",
147 resource->type));
148 return_ACPI_STATUS(AE_BAD_DATA);
149 }
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151
152
153 if (!resource->length) {
154 ACPI_ERROR((AE_INFO,
155 "Invalid zero length descriptor in resource list\n"));
156 return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
157 }
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160
161 if (resource->type == ACPI_RESOURCE_TYPE_SERIAL_BUS) {
162 if (resource->data.common_serial_bus.type >
163 AML_RESOURCE_MAX_SERIALBUSTYPE) {
164 conversion_table = NULL;
165 } else {
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168 conversion_table =
169 acpi_gbl_convert_resource_serial_bus_dispatch
170 [resource->data.common_serial_bus.type];
171 }
172 } else {
173 conversion_table =
174 acpi_gbl_set_resource_dispatch[resource->type];
175 }
176
177 if (!conversion_table) {
178 ACPI_ERROR((AE_INFO,
179 "Invalid/unsupported resource descriptor: Type 0x%2.2X",
180 resource->type));
181 return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE);
182 }
183
184 status = acpi_rs_convert_resource_to_aml(resource,
185 ACPI_CAST_PTR(union
186 aml_resource,
187 aml),
188 conversion_table);
189 if (ACPI_FAILURE(status)) {
190 ACPI_EXCEPTION((AE_INFO, status,
191 "Could not convert resource (type 0x%X) to AML",
192 resource->type));
193 return_ACPI_STATUS(status);
194 }
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197
198 status =
199 acpi_ut_validate_resource(NULL,
200 ACPI_CAST_PTR(union aml_resource,
201 aml), NULL);
202 if (ACPI_FAILURE(status)) {
203 return_ACPI_STATUS(status);
204 }
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207
208 if (resource->type == ACPI_RESOURCE_TYPE_END_TAG) {
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212 return_ACPI_STATUS(AE_OK);
213 }
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219 aml += acpi_ut_get_descriptor_length(aml);
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223 resource = ACPI_NEXT_RESOURCE(resource);
224 }
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228 return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
229}
230