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authorPaul Mackerras <paulus@samba.org>2006-02-06 18:43:36 -0500
committerPaul Mackerras <paulus@samba.org>2006-02-06 18:43:36 -0500
commit6cb6524d90b6e5497e79a1474bdb2f26755d1c02 (patch)
treefd475ac8f57a6bd39c976056324d1bc79d11b4c9 /drivers/acpi/resources/rsaddr.c
parent837e9594fc3cb9a06bddd7ecf66151334a2e13d2 (diff)
parent410c05427a69f53851637ccb85c2212131409fbd (diff)
Merge ../linux-2.6
Diffstat (limited to 'drivers/acpi/resources/rsaddr.c')
-rw-r--r--drivers/acpi/resources/rsaddr.c1164
1 files changed, 213 insertions, 951 deletions
diff --git a/drivers/acpi/resources/rsaddr.c b/drivers/acpi/resources/rsaddr.c
index 23b54baa0cb2..8fa3213ce000 100644
--- a/drivers/acpi/resources/rsaddr.c
+++ b/drivers/acpi/resources/rsaddr.c
@@ -5,7 +5,7 @@
5 ******************************************************************************/ 5 ******************************************************************************/
6 6
7/* 7/*
8 * Copyright (C) 2000 - 2005, R. Byron Moore 8 * Copyright (C) 2000 - 2006, R. Byron Moore
9 * All rights reserved. 9 * All rights reserved.
10 * 10 *
11 * Redistribution and use in source and binary forms, with or without 11 * Redistribution and use in source and binary forms, with or without
@@ -47,1072 +47,334 @@
47#define _COMPONENT ACPI_RESOURCES 47#define _COMPONENT ACPI_RESOURCES
48ACPI_MODULE_NAME("rsaddr") 48ACPI_MODULE_NAME("rsaddr")
49 49
50/* Local prototypes */
51static void
52acpi_rs_decode_general_flags(union acpi_resource_data *resource, u8 flags);
53
54static u8 acpi_rs_encode_general_flags(union acpi_resource_data *resource);
55
56static void
57acpi_rs_decode_specific_flags(union acpi_resource_data *resource, u8 flags);
58
59static u8 acpi_rs_encode_specific_flags(union acpi_resource_data *resource);
60
61/******************************************************************************* 50/*******************************************************************************
62 * 51 *
63 * FUNCTION: acpi_rs_decode_general_flags 52 * acpi_rs_convert_address16 - All WORD (16-bit) address resources
64 *
65 * PARAMETERS: Resource - Address resource data struct
66 * Flags - Actual flag byte
67 *
68 * RETURN: Decoded flag bits in resource struct
69 *
70 * DESCRIPTION: Decode a general flag byte to an address resource struct
71 * 53 *
72 ******************************************************************************/ 54 ******************************************************************************/
55struct acpi_rsconvert_info acpi_rs_convert_address16[5] = {
56 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS16,
57 ACPI_RS_SIZE(struct acpi_resource_address16),
58 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address16)},
73 59
74static void 60 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS16,
75acpi_rs_decode_general_flags(union acpi_resource_data *resource, u8 flags) 61 sizeof(struct aml_resource_address16),
76{ 62 0},
77 ACPI_FUNCTION_ENTRY();
78
79 /* Producer / Consumer - flag bit[0] */
80
81 resource->address.producer_consumer = (u32) (flags & 0x01);
82 63
83 /* Decode (_DEC) - flag bit[1] */ 64 /* Resource Type, General Flags, and Type-Specific Flags */
84 65
85 resource->address.decode = (u32) ((flags >> 1) & 0x01); 66 {ACPI_RSC_ADDRESS, 0, 0, 0},
86 67
87 /* Min Address Fixed (_MIF) - flag bit[2] */ 68 /*
69 * These fields are contiguous in both the source and destination:
70 * Address Granularity
71 * Address Range Minimum
72 * Address Range Maximum
73 * Address Translation Offset
74 * Address Length
75 */
76 {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.address16.granularity),
77 AML_OFFSET(address16.granularity),
78 5},
88 79
89 resource->address.min_address_fixed = (u32) ((flags >> 2) & 0x01); 80 /* Optional resource_source (Index and String) */
90 81
91 /* Max Address Fixed (_MAF) - flag bit[3] */ 82 {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address16.resource_source),
92 83 0,
93 resource->address.max_address_fixed = (u32) ((flags >> 3) & 0x01); 84 sizeof(struct aml_resource_address16)}
94} 85};
95 86
96/******************************************************************************* 87/*******************************************************************************
97 * 88 *
98 * FUNCTION: acpi_rs_encode_general_flags 89 * acpi_rs_convert_address32 - All DWORD (32-bit) address resources
99 *
100 * PARAMETERS: Resource - Address resource data struct
101 *
102 * RETURN: Encoded general flag byte
103 *
104 * DESCRIPTION: Construct a general flag byte from an address resource struct
105 * 90 *
106 ******************************************************************************/ 91 ******************************************************************************/
107 92
108static u8 acpi_rs_encode_general_flags(union acpi_resource_data *resource) 93struct acpi_rsconvert_info acpi_rs_convert_address32[5] = {
109{ 94 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS32,
110 u8 flags; 95 ACPI_RS_SIZE(struct acpi_resource_address32),
111 96 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address32)},
112 ACPI_FUNCTION_ENTRY();
113
114 /* Producer / Consumer - flag bit[0] */
115
116 flags = (u8) (resource->address.producer_consumer & 0x01);
117
118 /* Decode (_DEC) - flag bit[1] */
119
120 flags |= (u8) ((resource->address.decode & 0x01) << 1);
121
122 /* Min Address Fixed (_MIF) - flag bit[2] */
123
124 flags |= (u8) ((resource->address.min_address_fixed & 0x01) << 2);
125 97
126 /* Max Address Fixed (_MAF) - flag bit[3] */ 98 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS32,
99 sizeof(struct aml_resource_address32),
100 0},
127 101
128 flags |= (u8) ((resource->address.max_address_fixed & 0x01) << 3); 102 /* Resource Type, General Flags, and Type-Specific Flags */
129 103
130 return (flags); 104 {ACPI_RSC_ADDRESS, 0, 0, 0},
131}
132
133/*******************************************************************************
134 *
135 * FUNCTION: acpi_rs_decode_specific_flags
136 *
137 * PARAMETERS: Resource - Address resource data struct
138 * Flags - Actual flag byte
139 *
140 * RETURN: Decoded flag bits in attribute struct
141 *
142 * DESCRIPTION: Decode a type-specific flag byte to an attribute struct.
143 * Type-specific flags are only defined for the Memory and IO
144 * resource types.
145 *
146 ******************************************************************************/
147 105
148static void 106 /*
149acpi_rs_decode_specific_flags(union acpi_resource_data *resource, u8 flags) 107 * These fields are contiguous in both the source and destination:
150{ 108 * Address Granularity
151 ACPI_FUNCTION_ENTRY(); 109 * Address Range Minimum
152 110 * Address Range Maximum
153 if (resource->address.resource_type == ACPI_MEMORY_RANGE) { 111 * Address Translation Offset
154 /* Write Status (_RW) - flag bit[0] */ 112 * Address Length
155 113 */
156 resource->address.attribute.memory.read_write_attribute = 114 {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.address32.granularity),
157 (u16) (flags & 0x01); 115 AML_OFFSET(address32.granularity),
158 116 5},
159 /* Memory Attributes (_MEM) - flag bits[2:1] */
160
161 resource->address.attribute.memory.cache_attribute =
162 (u16) ((flags >> 1) & 0x03);
163 } else if (resource->address.resource_type == ACPI_IO_RANGE) {
164 /* Ranges (_RNG) - flag bits[1:0] */
165
166 resource->address.attribute.io.range_attribute =
167 (u16) (flags & 0x03);
168 117
169 /* Translations (_TTP and _TRS) - flag bits[5:4] */ 118 /* Optional resource_source (Index and String) */
170 119
171 resource->address.attribute.io.translation_attribute = 120 {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address32.resource_source),
172 (u16) ((flags >> 4) & 0x03); 121 0,
173 } 122 sizeof(struct aml_resource_address32)}
174} 123};
175 124
176/******************************************************************************* 125/*******************************************************************************
177 * 126 *
178 * FUNCTION: acpi_rs_encode_specific_flags 127 * acpi_rs_convert_address64 - All QWORD (64-bit) address resources
179 *
180 * PARAMETERS: Resource - Address resource data struct
181 *
182 * RETURN: Encoded type-specific flag byte
183 *
184 * DESCRIPTION: Construct a type-specific flag byte from an attribute struct.
185 * Type-specific flags are only defined for the Memory and IO
186 * resource types.
187 * 128 *
188 ******************************************************************************/ 129 ******************************************************************************/
189 130
190static u8 acpi_rs_encode_specific_flags(union acpi_resource_data *resource) 131struct acpi_rsconvert_info acpi_rs_convert_address64[5] = {
191{ 132 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS64,
192 u8 flags = 0; 133 ACPI_RS_SIZE(struct acpi_resource_address64),
193 134 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address64)},
194 ACPI_FUNCTION_ENTRY();
195
196 if (resource->address.resource_type == ACPI_MEMORY_RANGE) {
197 /* Write Status (_RW) - flag bit[0] */
198 135
199 flags = (u8) 136 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS64,
200 (resource->address.attribute.memory. 137 sizeof(struct aml_resource_address64),
201 read_write_attribute & 0x01); 138 0},
202 139
203 /* Memory Attributes (_MEM) - flag bits[2:1] */ 140 /* Resource Type, General Flags, and Type-Specific Flags */
204 141
205 flags |= (u8) 142 {ACPI_RSC_ADDRESS, 0, 0, 0},
206 ((resource->address.attribute.memory.
207 cache_attribute & 0x03) << 1);
208 } else if (resource->address.resource_type == ACPI_IO_RANGE) {
209 /* Ranges (_RNG) - flag bits[1:0] */
210 143
211 flags = (u8) 144 /*
212 (resource->address.attribute.io.range_attribute & 0x03); 145 * These fields are contiguous in both the source and destination:
146 * Address Granularity
147 * Address Range Minimum
148 * Address Range Maximum
149 * Address Translation Offset
150 * Address Length
151 */
152 {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.address64.granularity),
153 AML_OFFSET(address64.granularity),
154 5},
213 155
214 /* Translations (_TTP and _TRS) - flag bits[5:4] */ 156 /* Optional resource_source (Index and String) */
215 157
216 flags |= (u8) 158 {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address64.resource_source),
217 ((resource->address.attribute.io. 159 0,
218 translation_attribute & 0x03) << 4); 160 sizeof(struct aml_resource_address64)}
219 } 161};
220
221 return (flags);
222}
223 162
224/******************************************************************************* 163/*******************************************************************************
225 * 164 *
226 * FUNCTION: acpi_rs_address16_resource 165 * acpi_rs_convert_ext_address64 - All Extended (64-bit) address resources
227 *
228 * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte
229 * stream
230 * bytes_consumed - Pointer to where the number of bytes
231 * consumed the byte_stream_buffer is
232 * returned
233 * output_buffer - Pointer to the return data buffer
234 * structure_size - Pointer to where the number of bytes
235 * in the return data struct is returned
236 *
237 * RETURN: Status
238 *
239 * DESCRIPTION: Take the resource byte stream and fill out the appropriate
240 * structure pointed to by the output_buffer. Return the
241 * number of bytes consumed from the byte stream.
242 * 166 *
243 ******************************************************************************/ 167 ******************************************************************************/
244 168
245acpi_status 169struct acpi_rsconvert_info acpi_rs_convert_ext_address64[5] = {
246acpi_rs_address16_resource(u8 * byte_stream_buffer, 170 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64,
247 acpi_size * bytes_consumed, 171 ACPI_RS_SIZE(struct acpi_resource_extended_address64),
248 u8 ** output_buffer, acpi_size * structure_size) 172 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_address64)},
249{
250 u32 index;
251 u16 temp16;
252 u8 temp8;
253 u8 *temp_ptr;
254 u8 *buffer = byte_stream_buffer;
255 struct acpi_resource *output_struct = (void *)*output_buffer;
256 acpi_size struct_size =
257 ACPI_SIZEOF_RESOURCE(struct acpi_resource_address16);
258
259 ACPI_FUNCTION_TRACE("rs_address16_resource");
260
261 /* Get the Descriptor Length field */
262
263 buffer += 1;
264 ACPI_MOVE_16_TO_16(&temp16, buffer);
265
266 /* Validate minimum descriptor length */
267
268 if (temp16 < 13) {
269 return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
270 }
271
272 *bytes_consumed = temp16 + 3;
273 output_struct->id = ACPI_RSTYPE_ADDRESS16;
274
275 /* Get the Resource Type (Byte3) */
276 173
277 buffer += 2; 174 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64,
278 temp8 = *buffer; 175 sizeof(struct aml_resource_extended_address64),
176 0},
279 177
280 /* Values 0-2 and 0xC0-0xFF are valid */ 178 /* Resource Type, General Flags, and Type-Specific Flags */
281 179
282 if ((temp8 > 2) && (temp8 < 0xC0)) { 180 {ACPI_RSC_ADDRESS, 0, 0, 0},
283 return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE);
284 }
285
286 output_struct->data.address16.resource_type = temp8;
287
288 /* Get the General Flags (Byte4) */
289
290 buffer += 1;
291 acpi_rs_decode_general_flags(&output_struct->data, *buffer);
292
293 /* Get the Type Specific Flags (Byte5) */
294
295 buffer += 1;
296 acpi_rs_decode_specific_flags(&output_struct->data, *buffer);
297
298 /* Get Granularity (Bytes 6-7) */
299
300 buffer += 1;
301 ACPI_MOVE_16_TO_32(&output_struct->data.address16.granularity, buffer);
302
303 /* Get min_address_range (Bytes 8-9) */
304 181
305 buffer += 2; 182 /* Revision ID */
306 ACPI_MOVE_16_TO_32(&output_struct->data.address16.min_address_range,
307 buffer);
308
309 /* Get max_address_range (Bytes 10-11) */
310
311 buffer += 2;
312 ACPI_MOVE_16_TO_32(&output_struct->data.address16.max_address_range,
313 buffer);
314
315 /* Get address_translation_offset (Bytes 12-13) */
316
317 buffer += 2;
318 ACPI_MOVE_16_TO_32(&output_struct->data.address16.
319 address_translation_offset, buffer);
320
321 /* Get address_length (Bytes 14-15) */
322
323 buffer += 2;
324 ACPI_MOVE_16_TO_32(&output_struct->data.address16.address_length,
325 buffer);
326
327 /* Resource Source Index (if present) */
328
329 buffer += 2;
330 183
184 {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.ext_address64.revision_iD),
185 AML_OFFSET(ext_address64.revision_iD),
186 1},
331 /* 187 /*
332 * This will leave us pointing to the Resource Source Index 188 * These fields are contiguous in both the source and destination:
333 * If it is present, then save it off and calculate the 189 * Address Granularity
334 * pointer to where the null terminated string goes: 190 * Address Range Minimum
335 * Each Interrupt takes 32-bits + the 5 bytes of the 191 * Address Range Maximum
336 * stream that are default. 192 * Address Translation Offset
337 * 193 * Address Length
338 * Note: Some resource descriptors will have an additional null, so 194 * Type-Specific Attribute
339 * we add 1 to the length.
340 */ 195 */
341 if (*bytes_consumed > (16 + 1)) { 196 {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.ext_address64.granularity),
342 /* Dereference the Index */ 197 AML_OFFSET(ext_address64.granularity),
343 198 6}
344 output_struct->data.address16.resource_source.index = 199};
345 (u32) * buffer;
346
347 /* Point to the String */
348
349 buffer += 1;
350
351 /* Point the String pointer to the end of this structure */
352
353 output_struct->data.address16.resource_source.string_ptr =
354 (char *)((u8 *) output_struct + struct_size);
355
356 temp_ptr = (u8 *)
357 output_struct->data.address16.resource_source.string_ptr;
358
359 /* Copy the resource_source string into the buffer */
360
361 index = 0;
362 while (*buffer) {
363 *temp_ptr = *buffer;
364
365 temp_ptr++;
366 buffer++;
367 index++;
368 }
369
370 /* Add the terminating null and set the string length */
371
372 *temp_ptr = 0;
373 output_struct->data.address16.resource_source.string_length =
374 index + 1;
375
376 /*
377 * In order for the struct_size to fall on a 32-bit boundary,
378 * calculate the length of the string and expand the
379 * struct_size to the next 32-bit boundary.
380 */
381 temp8 = (u8) (index + 1);
382 struct_size += ACPI_ROUND_UP_to_32_bITS(temp8);
383 } else {
384 output_struct->data.address16.resource_source.index = 0;
385 output_struct->data.address16.resource_source.string_length = 0;
386 output_struct->data.address16.resource_source.string_ptr = NULL;
387 }
388
389 /* Set the Length parameter */
390
391 output_struct->length = (u32) struct_size;
392
393 /* Return the final size of the structure */
394
395 *structure_size = struct_size;
396 return_ACPI_STATUS(AE_OK);
397}
398 200
399/******************************************************************************* 201/*******************************************************************************
400 * 202 *
401 * FUNCTION: acpi_rs_address16_stream 203 * acpi_rs_convert_general_flags - Flags common to all address descriptors
402 *
403 * PARAMETERS: linked_list - Pointer to the resource linked list
404 * output_buffer - Pointer to the user's return buffer
405 * bytes_consumed - Pointer to where the number of bytes
406 * used in the output_buffer is returned
407 *
408 * RETURN: Status
409 *
410 * DESCRIPTION: Take the linked list resource structure and fills in the
411 * the appropriate bytes in a byte stream
412 * 204 *
413 ******************************************************************************/ 205 ******************************************************************************/
414 206
415acpi_status 207static struct acpi_rsconvert_info acpi_rs_convert_general_flags[6] = {
416acpi_rs_address16_stream(struct acpi_resource *linked_list, 208 {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.flags),
417 u8 ** output_buffer, acpi_size * bytes_consumed) 209 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_general_flags)},
418{
419 u8 *buffer = *output_buffer;
420 u8 *length_field;
421 acpi_size actual_bytes;
422
423 ACPI_FUNCTION_TRACE("rs_address16_stream");
424
425 /* Set the Descriptor Type field */
426
427 *buffer = ACPI_RDESC_TYPE_WORD_ADDRESS_SPACE;
428 buffer += 1;
429
430 /* Save a pointer to the Length field - to be filled in later */
431
432 length_field = buffer;
433 buffer += 2;
434
435 /* Set the Resource Type (Memory, Io, bus_number) */
436
437 *buffer = (u8) (linked_list->data.address16.resource_type & 0x03);
438 buffer += 1;
439
440 /* Set the general flags */
441
442 *buffer = acpi_rs_encode_general_flags(&linked_list->data);
443 buffer += 1;
444
445 /* Set the type specific flags */
446
447 *buffer = acpi_rs_encode_specific_flags(&linked_list->data);
448 buffer += 1;
449
450 /* Set the address space granularity */
451
452 ACPI_MOVE_32_TO_16(buffer, &linked_list->data.address16.granularity);
453 buffer += 2;
454
455 /* Set the address range minimum */
456 210
457 ACPI_MOVE_32_TO_16(buffer, 211 /* Resource Type (Memory, Io, bus_number, etc.) */
458 &linked_list->data.address16.min_address_range);
459 buffer += 2;
460 212
461 /* Set the address range maximum */ 213 {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.address.resource_type),
214 AML_OFFSET(address.resource_type),
215 1},
462 216
463 ACPI_MOVE_32_TO_16(buffer, 217 /* General Flags - Consume, Decode, min_fixed, max_fixed */
464 &linked_list->data.address16.max_address_range);
465 buffer += 2;
466 218
467 /* Set the address translation offset */ 219 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.producer_consumer),
220 AML_OFFSET(address.flags),
221 0},
468 222
469 ACPI_MOVE_32_TO_16(buffer, 223 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.decode),
470 &linked_list->data.address16. 224 AML_OFFSET(address.flags),
471 address_translation_offset); 225 1},
472 buffer += 2;
473 226
474 /* Set the address length */ 227 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.min_address_fixed),
228 AML_OFFSET(address.flags),
229 2},
475 230
476 ACPI_MOVE_32_TO_16(buffer, &linked_list->data.address16.address_length); 231 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.max_address_fixed),
477 buffer += 2; 232 AML_OFFSET(address.flags),
478 233 3}
479 /* Resource Source Index and Resource Source are optional */ 234};
480
481 if (linked_list->data.address16.resource_source.string_length) {
482 *buffer =
483 (u8) linked_list->data.address16.resource_source.index;
484 buffer += 1;
485
486 /* Copy the resource_source string */
487
488 ACPI_STRCPY((char *)buffer,
489 linked_list->data.address16.resource_source.
490 string_ptr);
491
492 /*
493 * Buffer needs to be set to the length of the string + one for the
494 * terminating null
495 */
496 buffer +=
497 (acpi_size) (ACPI_STRLEN
498 (linked_list->data.address16.resource_source.
499 string_ptr) + 1);
500 }
501
502 /* Return the number of bytes consumed in this operation */
503
504 actual_bytes = ACPI_PTR_DIFF(buffer, *output_buffer);
505 *bytes_consumed = actual_bytes;
506
507 /*
508 * Set the length field to the number of bytes consumed
509 * minus the header size (3 bytes)
510 */
511 actual_bytes -= 3;
512 ACPI_MOVE_SIZE_TO_16(length_field, &actual_bytes);
513 return_ACPI_STATUS(AE_OK);
514}
515 235
516/******************************************************************************* 236/*******************************************************************************
517 * 237 *
518 * FUNCTION: acpi_rs_address32_resource 238 * acpi_rs_convert_mem_flags - Flags common to Memory address descriptors
519 *
520 * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte
521 * stream
522 * bytes_consumed - Pointer to where the number of bytes
523 * consumed the byte_stream_buffer is
524 * returned
525 * output_buffer - Pointer to the return data buffer
526 * structure_size - Pointer to where the number of bytes
527 * in the return data struct is returned
528 *
529 * RETURN: Status
530 *
531 * DESCRIPTION: Take the resource byte stream and fill out the appropriate
532 * structure pointed to by the output_buffer. Return the
533 * number of bytes consumed from the byte stream.
534 * 239 *
535 ******************************************************************************/ 240 ******************************************************************************/
536 241
537acpi_status 242static struct acpi_rsconvert_info acpi_rs_convert_mem_flags[5] = {
538acpi_rs_address32_resource(u8 * byte_stream_buffer, 243 {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags),
539 acpi_size * bytes_consumed, 244 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_mem_flags)},
540 u8 ** output_buffer, acpi_size * structure_size)
541{
542 u16 temp16;
543 u8 temp8;
544 u8 *temp_ptr;
545 u32 index;
546 u8 *buffer = byte_stream_buffer;
547 struct acpi_resource *output_struct = (void *)*output_buffer;
548 acpi_size struct_size =
549 ACPI_SIZEOF_RESOURCE(struct acpi_resource_address32);
550 245
551 ACPI_FUNCTION_TRACE("rs_address32_resource"); 246 /* Memory-specific flags */
552 247
553 /* Get the Descriptor Length field */ 248 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.write_protect),
249 AML_OFFSET(address.specific_flags),
250 0},
554 251
555 buffer += 1; 252 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.caching),
556 ACPI_MOVE_16_TO_16(&temp16, buffer); 253 AML_OFFSET(address.specific_flags),
254 1},
557 255
558 /* Validate minimum descriptor length */ 256 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.range_type),
257 AML_OFFSET(address.specific_flags),
258 3},
559 259
560 if (temp16 < 23) { 260 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.translation),
561 return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH); 261 AML_OFFSET(address.specific_flags),
562 } 262 5}
563 263};
564 *bytes_consumed = temp16 + 3;
565 output_struct->id = ACPI_RSTYPE_ADDRESS32;
566
567 /* Get the Resource Type (Byte3) */
568
569 buffer += 2;
570 temp8 = *buffer;
571
572 /* Values 0-2 and 0xC0-0xFF are valid */
573
574 if ((temp8 > 2) && (temp8 < 0xC0)) {
575 return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE);
576 }
577
578 output_struct->data.address32.resource_type = temp8;
579
580 /* Get the General Flags (Byte4) */
581
582 buffer += 1;
583 acpi_rs_decode_general_flags(&output_struct->data, *buffer);
584
585 /* Get the Type Specific Flags (Byte5) */
586
587 buffer += 1;
588 acpi_rs_decode_specific_flags(&output_struct->data, *buffer);
589
590 /* Get Granularity (Bytes 6-9) */
591
592 buffer += 1;
593 ACPI_MOVE_32_TO_32(&output_struct->data.address32.granularity, buffer);
594
595 /* Get min_address_range (Bytes 10-13) */
596
597 buffer += 4;
598 ACPI_MOVE_32_TO_32(&output_struct->data.address32.min_address_range,
599 buffer);
600
601 /* Get max_address_range (Bytes 14-17) */
602
603 buffer += 4;
604 ACPI_MOVE_32_TO_32(&output_struct->data.address32.max_address_range,
605 buffer);
606
607 /* Get address_translation_offset (Bytes 18-21) */
608
609 buffer += 4;
610 ACPI_MOVE_32_TO_32(&output_struct->data.address32.
611 address_translation_offset, buffer);
612
613 /* Get address_length (Bytes 22-25) */
614
615 buffer += 4;
616 ACPI_MOVE_32_TO_32(&output_struct->data.address32.address_length,
617 buffer);
618
619 /* Resource Source Index (if present) */
620
621 buffer += 4;
622
623 /*
624 * This will leave us pointing to the Resource Source Index
625 * If it is present, then save it off and calculate the
626 * pointer to where the null terminated string goes:
627 *
628 * Note: Some resource descriptors will have an additional null, so
629 * we add 1 to the length.
630 */
631 if (*bytes_consumed > (26 + 1)) {
632 /* Dereference the Index */
633
634 output_struct->data.address32.resource_source.index =
635 (u32) * buffer;
636
637 /* Point to the String */
638
639 buffer += 1;
640
641 /* Point the String pointer to the end of this structure */
642
643 output_struct->data.address32.resource_source.string_ptr =
644 (char *)((u8 *) output_struct + struct_size);
645
646 temp_ptr = (u8 *)
647 output_struct->data.address32.resource_source.string_ptr;
648
649 /* Copy the resource_source string into the buffer */
650
651 index = 0;
652 while (*buffer) {
653 *temp_ptr = *buffer;
654
655 temp_ptr++;
656 buffer++;
657 index++;
658 }
659
660 /* Add the terminating null and set the string length */
661
662 *temp_ptr = 0;
663 output_struct->data.address32.resource_source.string_length =
664 index + 1;
665
666 /*
667 * In order for the struct_size to fall on a 32-bit boundary,
668 * calculate the length of the string and expand the
669 * struct_size to the next 32-bit boundary.
670 */
671 temp8 = (u8) (index + 1);
672 struct_size += ACPI_ROUND_UP_to_32_bITS(temp8);
673 } else {
674 output_struct->data.address32.resource_source.index = 0;
675 output_struct->data.address32.resource_source.string_length = 0;
676 output_struct->data.address32.resource_source.string_ptr = NULL;
677 }
678
679 /* Set the Length parameter */
680
681 output_struct->length = (u32) struct_size;
682
683 /* Return the final size of the structure */
684
685 *structure_size = struct_size;
686 return_ACPI_STATUS(AE_OK);
687}
688 264
689/******************************************************************************* 265/*******************************************************************************
690 * 266 *
691 * FUNCTION: acpi_rs_address32_stream 267 * acpi_rs_convert_io_flags - Flags common to I/O address descriptors
692 *
693 * PARAMETERS: linked_list - Pointer to the resource linked list
694 * output_buffer - Pointer to the user's return buffer
695 * bytes_consumed - Pointer to where the number of bytes
696 * used in the output_buffer is returned
697 *
698 * RETURN: Status
699 *
700 * DESCRIPTION: Take the linked list resource structure and fills in the
701 * the appropriate bytes in a byte stream
702 * 268 *
703 ******************************************************************************/ 269 ******************************************************************************/
704 270
705acpi_status 271static struct acpi_rsconvert_info acpi_rs_convert_io_flags[4] = {
706acpi_rs_address32_stream(struct acpi_resource *linked_list, 272 {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags),
707 u8 ** output_buffer, acpi_size * bytes_consumed) 273 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_io_flags)},
708{
709 u8 *buffer;
710 u16 *length_field;
711
712 ACPI_FUNCTION_TRACE("rs_address32_stream");
713
714 buffer = *output_buffer;
715
716 /* Set the Descriptor Type field */
717
718 *buffer = ACPI_RDESC_TYPE_DWORD_ADDRESS_SPACE;
719 buffer += 1;
720
721 /* Save a pointer to the Length field - to be filled in later */
722
723 length_field = ACPI_CAST_PTR(u16, buffer);
724 buffer += 2;
725
726 /* Set the Resource Type (Memory, Io, bus_number) */
727
728 *buffer = (u8) (linked_list->data.address32.resource_type & 0x03);
729 buffer += 1;
730
731 /* Set the general flags */
732
733 *buffer = acpi_rs_encode_general_flags(&linked_list->data);
734 buffer += 1;
735
736 /* Set the type specific flags */
737
738 *buffer = acpi_rs_encode_specific_flags(&linked_list->data);
739 buffer += 1;
740
741 /* Set the address space granularity */
742
743 ACPI_MOVE_32_TO_32(buffer, &linked_list->data.address32.granularity);
744 buffer += 4;
745
746 /* Set the address range minimum */
747
748 ACPI_MOVE_32_TO_32(buffer,
749 &linked_list->data.address32.min_address_range);
750 buffer += 4;
751
752 /* Set the address range maximum */
753
754 ACPI_MOVE_32_TO_32(buffer,
755 &linked_list->data.address32.max_address_range);
756 buffer += 4;
757
758 /* Set the address translation offset */
759
760 ACPI_MOVE_32_TO_32(buffer,
761 &linked_list->data.address32.
762 address_translation_offset);
763 buffer += 4;
764
765 /* Set the address length */
766
767 ACPI_MOVE_32_TO_32(buffer, &linked_list->data.address32.address_length);
768 buffer += 4;
769 274
770 /* Resource Source Index and Resource Source are optional */ 275 /* I/O-specific flags */
771 276
772 if (linked_list->data.address32.resource_source.string_length) { 277 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.io.range_type),
773 *buffer = 278 AML_OFFSET(address.specific_flags),
774 (u8) linked_list->data.address32.resource_source.index; 279 0},
775 buffer += 1;
776 280
777 /* Copy the resource_source string */ 281 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.io.translation),
282 AML_OFFSET(address.specific_flags),
283 4},
778 284
779 ACPI_STRCPY((char *)buffer, 285 {ACPI_RSC_1BITFLAG,
780 linked_list->data.address32.resource_source. 286 ACPI_RS_OFFSET(data.address.info.io.translation_type),
781 string_ptr); 287 AML_OFFSET(address.specific_flags),
782 288 5}
783 /* 289};
784 * Buffer needs to be set to the length of the string + one for the
785 * terminating null
786 */
787 buffer +=
788 (acpi_size) (ACPI_STRLEN
789 (linked_list->data.address32.resource_source.
790 string_ptr) + 1);
791 }
792
793 /* Return the number of bytes consumed in this operation */
794
795 *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer);
796
797 /*
798 * Set the length field to the number of bytes consumed
799 * minus the header size (3 bytes)
800 */
801 *length_field = (u16) (*bytes_consumed - 3);
802 return_ACPI_STATUS(AE_OK);
803}
804 290
805/******************************************************************************* 291/*******************************************************************************
806 * 292 *
807 * FUNCTION: acpi_rs_address64_resource 293 * FUNCTION: acpi_rs_get_address_common
808 * 294 *
809 * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte 295 * PARAMETERS: Resource - Pointer to the internal resource struct
810 * stream 296 * Aml - Pointer to the AML resource descriptor
811 * bytes_consumed - Pointer to where the number of bytes
812 * consumed the byte_stream_buffer is
813 * returned
814 * output_buffer - Pointer to the return data buffer
815 * structure_size - Pointer to where the number of bytes
816 * in the return data struct is returned
817 * 297 *
818 * RETURN: Status 298 * RETURN: TRUE if the resource_type field is OK, FALSE otherwise
819 * 299 *
820 * DESCRIPTION: Take the resource byte stream and fill out the appropriate 300 * DESCRIPTION: Convert common flag fields from a raw AML resource descriptor
821 * structure pointed to by the output_buffer. Return the 301 * to an internal resource descriptor
822 * number of bytes consumed from the byte stream.
823 * 302 *
824 ******************************************************************************/ 303 ******************************************************************************/
825 304
826acpi_status 305u8
827acpi_rs_address64_resource(u8 * byte_stream_buffer, 306acpi_rs_get_address_common(struct acpi_resource *resource,
828 acpi_size * bytes_consumed, 307 union aml_resource *aml)
829 u8 ** output_buffer, acpi_size * structure_size)
830{ 308{
831 u16 temp16; 309 ACPI_FUNCTION_ENTRY();
832 u8 temp8;
833 u8 resource_type;
834 u8 *temp_ptr;
835 u32 index;
836 u8 *buffer = byte_stream_buffer;
837 struct acpi_resource *output_struct = (void *)*output_buffer;
838 acpi_size struct_size =
839 ACPI_SIZEOF_RESOURCE(struct acpi_resource_address64);
840
841 ACPI_FUNCTION_TRACE("rs_address64_resource");
842
843 /* Get the Descriptor Type */
844
845 resource_type = *buffer;
846
847 /* Get the Descriptor Length field */
848
849 buffer += 1;
850 ACPI_MOVE_16_TO_16(&temp16, buffer);
851
852 /* Validate minimum descriptor length */
853
854 if (temp16 < 43) {
855 return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
856 }
857
858 *bytes_consumed = temp16 + 3;
859 output_struct->id = ACPI_RSTYPE_ADDRESS64;
860
861 /* Get the Resource Type (Byte3) */
862
863 buffer += 2;
864 temp8 = *buffer;
865
866 /* Values 0-2 and 0xC0-0xFF are valid */
867
868 if ((temp8 > 2) && (temp8 < 0xC0)) {
869 return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE);
870 }
871
872 output_struct->data.address64.resource_type = temp8;
873
874 /* Get the General Flags (Byte4) */
875
876 buffer += 1;
877 acpi_rs_decode_general_flags(&output_struct->data, *buffer);
878
879 /* Get the Type Specific Flags (Byte5) */
880
881 buffer += 1;
882 acpi_rs_decode_specific_flags(&output_struct->data, *buffer);
883 310
884 if (resource_type == ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE) { 311 /* Validate the Resource Type */
885 /* Move past revision_id and Reserved byte */
886 312
887 buffer += 2; 313 if ((aml->address.resource_type > 2)
314 && (aml->address.resource_type < 0xC0)) {
315 return (FALSE);
888 } 316 }
889 317
890 /* Get Granularity (Bytes 6-13) or (Bytes 8-15) */ 318 /* Get the Resource Type and General Flags */
891
892 buffer += 1;
893 ACPI_MOVE_64_TO_64(&output_struct->data.address64.granularity, buffer);
894
895 /* Get min_address_range (Bytes 14-21) or (Bytes 16-23) */
896
897 buffer += 8;
898 ACPI_MOVE_64_TO_64(&output_struct->data.address64.min_address_range,
899 buffer);
900
901 /* Get max_address_range (Bytes 22-29) or (Bytes 24-31) */
902
903 buffer += 8;
904 ACPI_MOVE_64_TO_64(&output_struct->data.address64.max_address_range,
905 buffer);
906
907 /* Get address_translation_offset (Bytes 30-37) or (Bytes 32-39) */
908
909 buffer += 8;
910 ACPI_MOVE_64_TO_64(&output_struct->data.address64.
911 address_translation_offset, buffer);
912 319
913 /* Get address_length (Bytes 38-45) or (Bytes 40-47) */ 320 (void)acpi_rs_convert_aml_to_resource(resource, aml,
321 acpi_rs_convert_general_flags);
914 322
915 buffer += 8; 323 /* Get the Type-Specific Flags (Memory and I/O descriptors only) */
916 ACPI_MOVE_64_TO_64(&output_struct->data.address64.address_length,
917 buffer);
918 324
919 output_struct->data.address64.resource_source.index = 0; 325 if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) {
920 output_struct->data.address64.resource_source.string_length = 0; 326 (void)acpi_rs_convert_aml_to_resource(resource, aml,
921 output_struct->data.address64.resource_source.string_ptr = NULL; 327 acpi_rs_convert_mem_flags);
922 328 } else if (resource->data.address.resource_type == ACPI_IO_RANGE) {
923 if (resource_type == ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE) { 329 (void)acpi_rs_convert_aml_to_resource(resource, aml,
924 /* Get type_specific_attribute (Bytes 48-55) */ 330 acpi_rs_convert_io_flags);
925
926 buffer += 8;
927 ACPI_MOVE_64_TO_64(&output_struct->data.address64.
928 type_specific_attributes, buffer);
929 } else { 331 } else {
930 output_struct->data.address64.type_specific_attributes = 0; 332 /* Generic resource type, just grab the type_specific byte */
931
932 /* Resource Source Index (if present) */
933
934 buffer += 8;
935
936 /*
937 * This will leave us pointing to the Resource Source Index
938 * If it is present, then save it off and calculate the
939 * pointer to where the null terminated string goes:
940 * Each Interrupt takes 32-bits + the 5 bytes of the
941 * stream that are default.
942 *
943 * Note: Some resource descriptors will have an additional null, so
944 * we add 1 to the length.
945 */
946 if (*bytes_consumed > (46 + 1)) {
947 /* Dereference the Index */
948
949 output_struct->data.address64.resource_source.index =
950 (u32) * buffer;
951
952 /* Point to the String */
953
954 buffer += 1;
955
956 /* Point the String pointer to the end of this structure */
957
958 output_struct->data.address64.resource_source.
959 string_ptr =
960 (char *)((u8 *) output_struct + struct_size);
961
962 temp_ptr = (u8 *)
963 output_struct->data.address64.resource_source.
964 string_ptr;
965
966 /* Copy the resource_source string into the buffer */
967
968 index = 0;
969 while (*buffer) {
970 *temp_ptr = *buffer;
971
972 temp_ptr++;
973 buffer++;
974 index++;
975 }
976
977 /*
978 * Add the terminating null and set the string length
979 */
980 *temp_ptr = 0;
981 output_struct->data.address64.resource_source.
982 string_length = index + 1;
983
984 /*
985 * In order for the struct_size to fall on a 32-bit boundary,
986 * calculate the length of the string and expand the
987 * struct_size to the next 32-bit boundary.
988 */
989 temp8 = (u8) (index + 1);
990 struct_size += ACPI_ROUND_UP_to_32_bITS(temp8);
991 }
992 }
993
994 /* Set the Length parameter */
995
996 output_struct->length = (u32) struct_size;
997 333
998 /* Return the final size of the structure */ 334 resource->data.address.info.type_specific =
335 aml->address.specific_flags;
336 }
999 337
1000 *structure_size = struct_size; 338 return (TRUE);
1001 return_ACPI_STATUS(AE_OK);
1002} 339}
1003 340
1004/******************************************************************************* 341/*******************************************************************************
1005 * 342 *
1006 * FUNCTION: acpi_rs_address64_stream 343 * FUNCTION: acpi_rs_set_address_common
1007 * 344 *
1008 * PARAMETERS: linked_list - Pointer to the resource linked list 345 * PARAMETERS: Aml - Pointer to the AML resource descriptor
1009 * output_buffer - Pointer to the user's return buffer 346 * Resource - Pointer to the internal resource struct
1010 * bytes_consumed - Pointer to where the number of bytes
1011 * used in the output_buffer is returned
1012 * 347 *
1013 * RETURN: Status 348 * RETURN: None
1014 * 349 *
1015 * DESCRIPTION: Take the linked list resource structure and fills in the 350 * DESCRIPTION: Convert common flag fields from a resource descriptor to an
1016 * the appropriate bytes in a byte stream 351 * AML descriptor
1017 * 352 *
1018 ******************************************************************************/ 353 ******************************************************************************/
1019 354
1020acpi_status 355void
1021acpi_rs_address64_stream(struct acpi_resource *linked_list, 356acpi_rs_set_address_common(union aml_resource *aml,
1022 u8 ** output_buffer, acpi_size * bytes_consumed) 357 struct acpi_resource *resource)
1023{ 358{
1024 u8 *buffer; 359 ACPI_FUNCTION_ENTRY();
1025 u16 *length_field;
1026
1027 ACPI_FUNCTION_TRACE("rs_address64_stream");
1028
1029 buffer = *output_buffer;
1030
1031 /* Set the Descriptor Type field */
1032
1033 *buffer = ACPI_RDESC_TYPE_QWORD_ADDRESS_SPACE;
1034 buffer += 1;
1035
1036 /* Save a pointer to the Length field - to be filled in later */
1037
1038 length_field = ACPI_CAST_PTR(u16, buffer);
1039 buffer += 2;
1040
1041 /* Set the Resource Type (Memory, Io, bus_number) */
1042
1043 *buffer = (u8) (linked_list->data.address64.resource_type & 0x03);
1044 buffer += 1;
1045
1046 /* Set the general flags */
1047
1048 *buffer = acpi_rs_encode_general_flags(&linked_list->data);
1049 buffer += 1;
1050
1051 /* Set the type specific flags */
1052
1053 *buffer = acpi_rs_encode_specific_flags(&linked_list->data);
1054 buffer += 1;
1055
1056 /* Set the address space granularity */
1057
1058 ACPI_MOVE_64_TO_64(buffer, &linked_list->data.address64.granularity);
1059 buffer += 8;
1060
1061 /* Set the address range minimum */
1062
1063 ACPI_MOVE_64_TO_64(buffer,
1064 &linked_list->data.address64.min_address_range);
1065 buffer += 8;
1066
1067 /* Set the address range maximum */
1068
1069 ACPI_MOVE_64_TO_64(buffer,
1070 &linked_list->data.address64.max_address_range);
1071 buffer += 8;
1072
1073 /* Set the address translation offset */
1074
1075 ACPI_MOVE_64_TO_64(buffer,
1076 &linked_list->data.address64.
1077 address_translation_offset);
1078 buffer += 8;
1079
1080 /* Set the address length */
1081
1082 ACPI_MOVE_64_TO_64(buffer, &linked_list->data.address64.address_length);
1083 buffer += 8;
1084 360
1085 /* Resource Source Index and Resource Source are optional */ 361 /* Set the Resource Type and General Flags */
1086 362
1087 if (linked_list->data.address64.resource_source.string_length) { 363 (void)acpi_rs_convert_resource_to_aml(resource, aml,
1088 *buffer = 364 acpi_rs_convert_general_flags);
1089 (u8) linked_list->data.address64.resource_source.index;
1090 buffer += 1;
1091 365
1092 /* Copy the resource_source string */ 366 /* Set the Type-Specific Flags (Memory and I/O descriptors only) */
1093 367
1094 ACPI_STRCPY((char *)buffer, 368 if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) {
1095 linked_list->data.address64.resource_source. 369 (void)acpi_rs_convert_resource_to_aml(resource, aml,
1096 string_ptr); 370 acpi_rs_convert_mem_flags);
371 } else if (resource->data.address.resource_type == ACPI_IO_RANGE) {
372 (void)acpi_rs_convert_resource_to_aml(resource, aml,
373 acpi_rs_convert_io_flags);
374 } else {
375 /* Generic resource type, just copy the type_specific byte */
1097 376
1098 /* 377 aml->address.specific_flags =
1099 * Buffer needs to be set to the length of the string + one for the 378 resource->data.address.info.type_specific;
1100 * terminating null
1101 */
1102 buffer +=
1103 (acpi_size) (ACPI_STRLEN
1104 (linked_list->data.address64.resource_source.
1105 string_ptr) + 1);
1106 } 379 }
1107
1108 /* Return the number of bytes consumed in this operation */
1109
1110 *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer);
1111
1112 /*
1113 * Set the length field to the number of bytes consumed
1114 * minus the header size (3 bytes)
1115 */
1116 *length_field = (u16) (*bytes_consumed - 3);
1117 return_ACPI_STATUS(AE_OK);
1118} 380}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-08 03:39:22 -0500