aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/acpi/resources/rscalc.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/acpi/resources/rscalc.c')
-rw-r--r--drivers/acpi/resources/rscalc.c144
1 files changed, 67 insertions, 77 deletions
diff --git a/drivers/acpi/resources/rscalc.c b/drivers/acpi/resources/rscalc.c
index 8a5f0a52371d..98176f2fcb5d 100644
--- a/drivers/acpi/resources/rscalc.c
+++ b/drivers/acpi/resources/rscalc.c
@@ -81,9 +81,8 @@ acpi_rs_get_byte_stream_length (
81 81
82 82
83 while (!done) { 83 while (!done) {
84 /* 84 /* Init the variable that will hold the size to add to the total. */
85 * Init the variable that will hold the size to add to the total. 85
86 */
87 segment_size = 0; 86 segment_size = 0;
88 87
89 switch (linked_list->id) { 88 switch (linked_list->id) {
@@ -196,7 +195,8 @@ acpi_rs_get_byte_stream_length (
196 segment_size = 16; 195 segment_size = 16;
197 196
198 if (linked_list->data.address16.resource_source.string_ptr) { 197 if (linked_list->data.address16.resource_source.string_ptr) {
199 segment_size += linked_list->data.address16.resource_source.string_length; 198 segment_size +=
199 linked_list->data.address16.resource_source.string_length;
200 segment_size++; 200 segment_size++;
201 } 201 }
202 break; 202 break;
@@ -212,7 +212,8 @@ acpi_rs_get_byte_stream_length (
212 segment_size = 26; 212 segment_size = 26;
213 213
214 if (linked_list->data.address32.resource_source.string_ptr) { 214 if (linked_list->data.address32.resource_source.string_ptr) {
215 segment_size += linked_list->data.address32.resource_source.string_length; 215 segment_size +=
216 linked_list->data.address32.resource_source.string_length;
216 segment_size++; 217 segment_size++;
217 } 218 }
218 break; 219 break;
@@ -227,7 +228,8 @@ acpi_rs_get_byte_stream_length (
227 segment_size = 46; 228 segment_size = 46;
228 229
229 if (linked_list->data.address64.resource_source.string_ptr) { 230 if (linked_list->data.address64.resource_source.string_ptr) {
230 segment_size += linked_list->data.address64.resource_source.string_length; 231 segment_size +=
232 linked_list->data.address64.resource_source.string_length;
231 segment_size++; 233 segment_size++;
232 } 234 }
233 break; 235 break;
@@ -241,38 +243,36 @@ acpi_rs_get_byte_stream_length (
241 * Index + the length of the null terminated string 243 * Index + the length of the null terminated string
242 * Resource Source + 1 for the null. 244 * Resource Source + 1 for the null.
243 */ 245 */
244 segment_size = 9 + 246 segment_size = 9 + (((acpi_size)
245 (((acpi_size) linked_list->data.extended_irq.number_of_interrupts - 1) * 4); 247 linked_list->data.extended_irq.number_of_interrupts - 1) * 4);
246 248
247 if (linked_list->data.extended_irq.resource_source.string_ptr) { 249 if (linked_list->data.extended_irq.resource_source.string_ptr) {
248 segment_size += linked_list->data.extended_irq.resource_source.string_length; 250 segment_size +=
251 linked_list->data.extended_irq.resource_source.string_length;
249 segment_size++; 252 segment_size++;
250 } 253 }
251 break; 254 break;
252 255
253 default: 256 default:
254 /* 257
255 * If we get here, everything is out of sync, exit with error 258 /* If we get here, everything is out of sync, exit with error */
256 */ 259
257 return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE); 260 return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE);
258 261
259 } /* switch (linked_list->Id) */ 262 } /* switch (linked_list->Id) */
260 263
261 /* 264 /* Update the total */
262 * Update the total 265
263 */
264 byte_stream_size_needed += segment_size; 266 byte_stream_size_needed += segment_size;
265 267
266 /* 268 /* Point to the next object */
267 * Point to the next object 269
268 */
269 linked_list = ACPI_PTR_ADD (struct acpi_resource, 270 linked_list = ACPI_PTR_ADD (struct acpi_resource,
270 linked_list, linked_list->length); 271 linked_list, linked_list->length);
271 } 272 }
272 273
273 /* 274 /* This is the data the caller needs */
274 * This is the data the caller needs 275
275 */
276 *size_needed = byte_stream_size_needed; 276 *size_needed = byte_stream_size_needed;
277 return_ACPI_STATUS (AE_OK); 277 return_ACPI_STATUS (AE_OK);
278} 278}
@@ -320,9 +320,8 @@ acpi_rs_get_list_length (
320 320
321 321
322 while (bytes_parsed < byte_stream_buffer_length) { 322 while (bytes_parsed < byte_stream_buffer_length) {
323 /* 323 /* The next byte in the stream is the resource type */
324 * The next byte in the stream is the resource type 324
325 */
326 resource_type = acpi_rs_get_resource_type (*byte_stream_buffer); 325 resource_type = acpi_rs_get_resource_type (*byte_stream_buffer);
327 326
328 switch (resource_type) { 327 switch (resource_type) {
@@ -346,9 +345,8 @@ acpi_rs_get_list_length (
346 ACPI_MOVE_16_TO_16 (&temp16, buffer); 345 ACPI_MOVE_16_TO_16 (&temp16, buffer);
347 bytes_consumed = temp16 + 3; 346 bytes_consumed = temp16 + 3;
348 347
349 /* 348 /* Ensure a 32-bit boundary for the structure */
350 * Ensure a 32-bit boundary for the structure 349
351 */
352 temp16 = (u16) ACPI_ROUND_UP_to_32_bITS (temp16); 350 temp16 = (u16) ACPI_ROUND_UP_to_32_bITS (temp16);
353 351
354 structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_vendor) + 352 structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_vendor) +
@@ -416,9 +414,8 @@ acpi_rs_get_list_length (
416 temp8 = 0; 414 temp8 = 0;
417 } 415 }
418 416
419 /* 417 /* Ensure a 64-bit boundary for the structure */
420 * Ensure a 64-bit boundary for the structure 418
421 */
422 temp8 = (u8) ACPI_ROUND_UP_to_64_bITS (temp8); 419 temp8 = (u8) ACPI_ROUND_UP_to_64_bITS (temp8);
423 420
424 structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_address64) + 421 structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_address64) +
@@ -452,9 +449,8 @@ acpi_rs_get_list_length (
452 temp8 = 0; 449 temp8 = 0;
453 } 450 }
454 451
455 /* 452 /* Ensure a 32-bit boundary for the structure */
456 * Ensure a 32-bit boundary for the structure 453
457 */
458 temp8 = (u8) ACPI_ROUND_UP_to_32_bITS (temp8); 454 temp8 = (u8) ACPI_ROUND_UP_to_32_bITS (temp8);
459 455
460 structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_address32) + 456 structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_address32) +
@@ -488,9 +484,8 @@ acpi_rs_get_list_length (
488 temp8 = 0; 484 temp8 = 0;
489 } 485 }
490 486
491 /* 487 /* Ensure a 32-bit boundary for the structure */
492 * Ensure a 32-bit boundary for the structure 488
493 */
494 temp8 = (u8) ACPI_ROUND_UP_to_32_bITS (temp8); 489 temp8 = (u8) ACPI_ROUND_UP_to_32_bITS (temp8);
495 490
496 structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_address16) + 491 structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_address16) +
@@ -537,9 +532,8 @@ acpi_rs_get_list_length (
537 temp8 = 0; 532 temp8 = 0;
538 } 533 }
539 534
540 /* 535 /* Ensure a 32-bit boundary for the structure */
541 * Ensure a 32-bit boundary for the structure 536
542 */
543 temp8 = (u8) ACPI_ROUND_UP_to_32_bITS (temp8); 537 temp8 = (u8) ACPI_ROUND_UP_to_32_bITS (temp8);
544 538
545 structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_ext_irq) + 539 structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_ext_irq) +
@@ -567,9 +561,8 @@ acpi_rs_get_list_length (
567 561
568 ++buffer; 562 ++buffer;
569 563
570 /* 564 /* Look at the number of bits set */
571 * Look at the number of bits set 565
572 */
573 ACPI_MOVE_16_TO_16 (&temp16, buffer); 566 ACPI_MOVE_16_TO_16 (&temp16, buffer);
574 567
575 for (index = 0; index < 16; index++) { 568 for (index = 0; index < 16; index++) {
@@ -596,9 +589,8 @@ acpi_rs_get_list_length (
596 589
597 ++buffer; 590 ++buffer;
598 591
599 /* 592 /* Look at the number of bits set */
600 * Look at the number of bits set 593
601 */
602 temp8 = *buffer; 594 temp8 = *buffer;
603 595
604 for(index = 0; index < 8; index++) { 596 for(index = 0; index < 8; index++) {
@@ -670,9 +662,8 @@ acpi_rs_get_list_length (
670 temp8 = (u8) (temp8 & 0x7); 662 temp8 = (u8) (temp8 & 0x7);
671 bytes_consumed = temp8 + 1; 663 bytes_consumed = temp8 + 1;
672 664
673 /* 665 /* Ensure a 32-bit boundary for the structure */
674 * Ensure a 32-bit boundary for the structure 666
675 */
676 temp8 = (u8) ACPI_ROUND_UP_to_32_bITS (temp8); 667 temp8 = (u8) ACPI_ROUND_UP_to_32_bITS (temp8);
677 structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_vendor) + 668 structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_vendor) +
678 (temp8 * sizeof (u8)); 669 (temp8 * sizeof (u8));
@@ -697,21 +688,18 @@ acpi_rs_get_list_length (
697 return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE); 688 return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE);
698 } 689 }
699 690
700 /* 691 /* Update the return value and counter */
701 * Update the return value and counter 692
702 */
703 buffer_size += (u32) ACPI_ALIGN_RESOURCE_SIZE (structure_size); 693 buffer_size += (u32) ACPI_ALIGN_RESOURCE_SIZE (structure_size);
704 bytes_parsed += bytes_consumed; 694 bytes_parsed += bytes_consumed;
705 695
706 /* 696 /* Set the byte stream to point to the next resource */
707 * Set the byte stream to point to the next resource 697
708 */
709 byte_stream_buffer += bytes_consumed; 698 byte_stream_buffer += bytes_consumed;
710 } 699 }
711 700
712 /* 701 /* This is the data the caller needs */
713 * This is the data the caller needs 702
714 */
715 *size_needed = buffer_size; 703 *size_needed = buffer_size;
716 return_ACPI_STATUS (AE_OK); 704 return_ACPI_STATUS (AE_OK);
717} 705}
@@ -767,9 +755,8 @@ acpi_rs_get_pci_routing_table_length (
767 top_object_list = package_object->package.elements; 755 top_object_list = package_object->package.elements;
768 756
769 for (index = 0; index < number_of_elements; index++) { 757 for (index = 0; index < number_of_elements; index++) {
770 /* 758 /* Dereference the sub-package */
771 * Dereference the sub-package 759
772 */
773 package_element = *top_object_list; 760 package_element = *top_object_list;
774 761
775 /* 762 /*
@@ -778,37 +765,40 @@ acpi_rs_get_pci_routing_table_length (
778 */ 765 */
779 sub_object_list = package_element->package.elements; 766 sub_object_list = package_element->package.elements;
780 767
781 /* 768 /* Scan the irq_table_elements for the Source Name String */
782 * Scan the irq_table_elements for the Source Name String 769
783 */
784 name_found = FALSE; 770 name_found = FALSE;
785 771
786 for (table_index = 0; table_index < 4 && !name_found; table_index++) { 772 for (table_index = 0; table_index < 4 && !name_found; table_index++) {
787 if ((ACPI_TYPE_STRING == ACPI_GET_OBJECT_TYPE (*sub_object_list)) || 773 if ((ACPI_TYPE_STRING ==
788 ((ACPI_TYPE_LOCAL_REFERENCE == ACPI_GET_OBJECT_TYPE (*sub_object_list)) && 774 ACPI_GET_OBJECT_TYPE (*sub_object_list)) ||
789 ((*sub_object_list)->reference.opcode == AML_INT_NAMEPATH_OP))) { 775
776 ((ACPI_TYPE_LOCAL_REFERENCE ==
777 ACPI_GET_OBJECT_TYPE (*sub_object_list)) &&
778
779 ((*sub_object_list)->reference.opcode ==
780 AML_INT_NAMEPATH_OP))) {
790 name_found = TRUE; 781 name_found = TRUE;
791 } 782 }
792 else { 783 else {
793 /* 784 /* Look at the next element */
794 * Look at the next element 785
795 */
796 sub_object_list++; 786 sub_object_list++;
797 } 787 }
798 } 788 }
799 789
800 temp_size_needed += (sizeof (struct acpi_pci_routing_table) - 4); 790 temp_size_needed += (sizeof (struct acpi_pci_routing_table) - 4);
801 791
802 /* 792 /* Was a String type found? */
803 * Was a String type found? 793
804 */
805 if (name_found) { 794 if (name_found) {
806 if (ACPI_GET_OBJECT_TYPE (*sub_object_list) == ACPI_TYPE_STRING) { 795 if (ACPI_GET_OBJECT_TYPE (*sub_object_list) == ACPI_TYPE_STRING) {
807 /* 796 /*
808 * The length String.Length field does not include the 797 * The length String.Length field does not include the
809 * terminating NULL, add 1 798 * terminating NULL, add 1
810 */ 799 */
811 temp_size_needed += ((acpi_size) (*sub_object_list)->string.length + 1); 800 temp_size_needed += ((acpi_size)
801 (*sub_object_list)->string.length + 1);
812 } 802 }
813 else { 803 else {
814 temp_size_needed += acpi_ns_get_pathname_length ( 804 temp_size_needed += acpi_ns_get_pathname_length (
@@ -827,14 +817,14 @@ acpi_rs_get_pci_routing_table_length (
827 817
828 temp_size_needed = ACPI_ROUND_UP_to_64_bITS (temp_size_needed); 818 temp_size_needed = ACPI_ROUND_UP_to_64_bITS (temp_size_needed);
829 819
830 /* 820 /* Point to the next union acpi_operand_object */
831 * Point to the next union acpi_operand_object 821
832 */
833 top_object_list++; 822 top_object_list++;
834 } 823 }
835 824
836 /* 825 /*
837 * Adding an extra element to the end of the list, essentially a NULL terminator 826 * Adding an extra element to the end of the list, essentially a
827 * NULL terminator
838 */ 828 */
839 *buffer_size_needed = temp_size_needed + sizeof (struct acpi_pci_routing_table); 829 *buffer_size_needed = temp_size_needed + sizeof (struct acpi_pci_routing_table);
840 return_ACPI_STATUS (AE_OK); 830 return_ACPI_STATUS (AE_OK);