diff options
Diffstat (limited to 'drivers/acpi/resources/rscalc.c')
| -rw-r--r-- | drivers/acpi/resources/rscalc.c | 432 |
1 files changed, 205 insertions, 227 deletions
diff --git a/drivers/acpi/resources/rscalc.c b/drivers/acpi/resources/rscalc.c index 8a5f0a52371d..378f58390fc1 100644 --- a/drivers/acpi/resources/rscalc.c +++ b/drivers/acpi/resources/rscalc.c @@ -41,15 +41,13 @@ * POSSIBILITY OF SUCH DAMAGES. */ - #include <acpi/acpi.h> #include <acpi/acresrc.h> #include <acpi/amlcode.h> #include <acpi/acnamesp.h> #define _COMPONENT ACPI_RESOURCES - ACPI_MODULE_NAME ("rscalc") - +ACPI_MODULE_NAME("rscalc") /******************************************************************************* * @@ -66,24 +64,19 @@ * the resource data. * ******************************************************************************/ - acpi_status -acpi_rs_get_byte_stream_length ( - struct acpi_resource *linked_list, - acpi_size *size_needed) +acpi_rs_get_byte_stream_length(struct acpi_resource *linked_list, + acpi_size * size_needed) { - acpi_size byte_stream_size_needed = 0; - acpi_size segment_size; - u8 done = FALSE; - - - ACPI_FUNCTION_TRACE ("rs_get_byte_stream_length"); + acpi_size byte_stream_size_needed = 0; + acpi_size segment_size; + u8 done = FALSE; + ACPI_FUNCTION_TRACE("rs_get_byte_stream_length"); while (!done) { - /* - * Init the variable that will hold the size to add to the total. - */ + /* Init the variable that will hold the size to add to the total. */ + segment_size = 0; switch (linked_list->id) { @@ -146,11 +139,11 @@ acpi_rs_get_byte_stream_length ( */ if (linked_list->data.vendor_specific.length > 7) { segment_size = 3; - } - else { + } else { segment_size = 1; } - segment_size += linked_list->data.vendor_specific.length; + segment_size += + linked_list->data.vendor_specific.length; break; case ACPI_RSTYPE_END_TAG: @@ -195,8 +188,11 @@ acpi_rs_get_byte_stream_length ( */ segment_size = 16; - if (linked_list->data.address16.resource_source.string_ptr) { - segment_size += linked_list->data.address16.resource_source.string_length; + if (linked_list->data.address16.resource_source. + string_ptr) { + segment_size += + linked_list->data.address16.resource_source. + string_length; segment_size++; } break; @@ -211,8 +207,11 @@ acpi_rs_get_byte_stream_length ( */ segment_size = 26; - if (linked_list->data.address32.resource_source.string_ptr) { - segment_size += linked_list->data.address32.resource_source.string_length; + if (linked_list->data.address32.resource_source. + string_ptr) { + segment_size += + linked_list->data.address32.resource_source. + string_length; segment_size++; } break; @@ -226,8 +225,11 @@ acpi_rs_get_byte_stream_length ( */ segment_size = 46; - if (linked_list->data.address64.resource_source.string_ptr) { - segment_size += linked_list->data.address64.resource_source.string_length; + if (linked_list->data.address64.resource_source. + string_ptr) { + segment_size += + linked_list->data.address64.resource_source. + string_length; segment_size++; } break; @@ -241,43 +243,43 @@ acpi_rs_get_byte_stream_length ( * Index + the length of the null terminated string * Resource Source + 1 for the null. */ - segment_size = 9 + - (((acpi_size) linked_list->data.extended_irq.number_of_interrupts - 1) * 4); + segment_size = 9 + (((acpi_size) + linked_list->data.extended_irq. + number_of_interrupts - 1) * 4); - if (linked_list->data.extended_irq.resource_source.string_ptr) { - segment_size += linked_list->data.extended_irq.resource_source.string_length; + if (linked_list->data.extended_irq.resource_source. + string_ptr) { + segment_size += + linked_list->data.extended_irq. + resource_source.string_length; segment_size++; } break; default: - /* - * If we get here, everything is out of sync, exit with error - */ - return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE); - } /* switch (linked_list->Id) */ + /* If we get here, everything is out of sync, exit with error */ + + return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); + + } /* switch (linked_list->Id) */ + + /* Update the total */ - /* - * Update the total - */ byte_stream_size_needed += segment_size; - /* - * Point to the next object - */ - linked_list = ACPI_PTR_ADD (struct acpi_resource, - linked_list, linked_list->length); + /* Point to the next object */ + + linked_list = ACPI_PTR_ADD(struct acpi_resource, + linked_list, linked_list->length); } - /* - * This is the data the caller needs - */ + /* This is the data the caller needs */ + *size_needed = byte_stream_size_needed; - return_ACPI_STATUS (AE_OK); + return_ACPI_STATUS(AE_OK); } - /******************************************************************************* * * FUNCTION: acpi_rs_get_list_length @@ -297,33 +299,28 @@ acpi_rs_get_byte_stream_length ( ******************************************************************************/ acpi_status -acpi_rs_get_list_length ( - u8 *byte_stream_buffer, - u32 byte_stream_buffer_length, - acpi_size *size_needed) +acpi_rs_get_list_length(u8 * byte_stream_buffer, + u32 byte_stream_buffer_length, acpi_size * size_needed) { - u32 buffer_size = 0; - u32 bytes_parsed = 0; - u8 number_of_interrupts = 0; - u8 number_of_channels = 0; - u8 resource_type; - u32 structure_size; - u32 bytes_consumed; - u8 *buffer; - u8 temp8; - u16 temp16; - u8 index; - u8 additional_bytes; - - - ACPI_FUNCTION_TRACE ("rs_get_list_length"); - + u32 buffer_size = 0; + u32 bytes_parsed = 0; + u8 number_of_interrupts = 0; + u8 number_of_channels = 0; + u8 resource_type; + u32 structure_size; + u32 bytes_consumed; + u8 *buffer; + u8 temp8; + u16 temp16; + u8 index; + u8 additional_bytes; + + ACPI_FUNCTION_TRACE("rs_get_list_length"); while (bytes_parsed < byte_stream_buffer_length) { - /* - * The next byte in the stream is the resource type - */ - resource_type = acpi_rs_get_resource_type (*byte_stream_buffer); + /* The next byte in the stream is the resource type */ + + resource_type = acpi_rs_get_resource_type(*byte_stream_buffer); switch (resource_type) { case ACPI_RDESC_TYPE_MEMORY_24: @@ -332,10 +329,10 @@ acpi_rs_get_list_length ( */ bytes_consumed = 12; - structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_mem24); + structure_size = + ACPI_SIZEOF_RESOURCE(struct acpi_resource_mem24); break; - case ACPI_RDESC_TYPE_LARGE_VENDOR: /* * Vendor Defined Resource @@ -343,18 +340,17 @@ acpi_rs_get_list_length ( buffer = byte_stream_buffer; ++buffer; - ACPI_MOVE_16_TO_16 (&temp16, buffer); + ACPI_MOVE_16_TO_16(&temp16, buffer); bytes_consumed = temp16 + 3; - /* - * Ensure a 32-bit boundary for the structure - */ - temp16 = (u16) ACPI_ROUND_UP_to_32_bITS (temp16); + /* Ensure a 32-bit boundary for the structure */ - structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_vendor) + - (temp16 * sizeof (u8)); - break; + temp16 = (u16) ACPI_ROUND_UP_to_32_bITS(temp16); + structure_size = + ACPI_SIZEOF_RESOURCE(struct acpi_resource_vendor) + + (temp16 * sizeof(u8)); + break; case ACPI_RDESC_TYPE_MEMORY_32: /* @@ -362,20 +358,21 @@ acpi_rs_get_list_length ( */ bytes_consumed = 20; - structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_mem32); + structure_size = + ACPI_SIZEOF_RESOURCE(struct acpi_resource_mem32); break; - case ACPI_RDESC_TYPE_FIXED_MEMORY_32: /* * 32-Bit Fixed Memory Resource */ bytes_consumed = 12; - structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_fixed_mem32); + structure_size = + ACPI_SIZEOF_RESOURCE(struct + acpi_resource_fixed_mem32); break; - case ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE: /* * 64-Bit Address Resource @@ -383,13 +380,14 @@ acpi_rs_get_list_length ( buffer = byte_stream_buffer; ++buffer; - ACPI_MOVE_16_TO_16 (&temp16, buffer); + ACPI_MOVE_16_TO_16(&temp16, buffer); bytes_consumed = temp16 + 3; - structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_address64); + structure_size = + ACPI_SIZEOF_RESOURCE(struct + acpi_resource_address64); break; - case ACPI_RDESC_TYPE_QWORD_ADDRESS_SPACE: /* * 64-Bit Address Resource @@ -397,7 +395,7 @@ acpi_rs_get_list_length ( buffer = byte_stream_buffer; ++buffer; - ACPI_MOVE_16_TO_16 (&temp16, buffer); + ACPI_MOVE_16_TO_16(&temp16, buffer); bytes_consumed = temp16 + 3; @@ -411,20 +409,18 @@ acpi_rs_get_list_length ( */ if (43 < temp16) { temp8 = (u8) (temp16 - 44); - } - else { + } else { temp8 = 0; } - /* - * Ensure a 64-bit boundary for the structure - */ - temp8 = (u8) ACPI_ROUND_UP_to_64_bITS (temp8); + /* Ensure a 64-bit boundary for the structure */ - structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_address64) + - (temp8 * sizeof (u8)); - break; + temp8 = (u8) ACPI_ROUND_UP_to_64_bITS(temp8); + structure_size = + ACPI_SIZEOF_RESOURCE(struct acpi_resource_address64) + + (temp8 * sizeof(u8)); + break; case ACPI_RDESC_TYPE_DWORD_ADDRESS_SPACE: /* @@ -433,7 +429,7 @@ acpi_rs_get_list_length ( buffer = byte_stream_buffer; ++buffer; - ACPI_MOVE_16_TO_16 (&temp16, buffer); + ACPI_MOVE_16_TO_16(&temp16, buffer); bytes_consumed = temp16 + 3; @@ -447,20 +443,18 @@ acpi_rs_get_list_length ( */ if (23 < temp16) { temp8 = (u8) (temp16 - 24); - } - else { + } else { temp8 = 0; } - /* - * Ensure a 32-bit boundary for the structure - */ - temp8 = (u8) ACPI_ROUND_UP_to_32_bITS (temp8); + /* Ensure a 32-bit boundary for the structure */ - structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_address32) + - (temp8 * sizeof (u8)); - break; + temp8 = (u8) ACPI_ROUND_UP_to_32_bITS(temp8); + structure_size = + ACPI_SIZEOF_RESOURCE(struct acpi_resource_address32) + + (temp8 * sizeof(u8)); + break; case ACPI_RDESC_TYPE_WORD_ADDRESS_SPACE: /* @@ -469,7 +463,7 @@ acpi_rs_get_list_length ( buffer = byte_stream_buffer; ++buffer; - ACPI_MOVE_16_TO_16 (&temp16, buffer); + ACPI_MOVE_16_TO_16(&temp16, buffer); bytes_consumed = temp16 + 3; @@ -483,20 +477,18 @@ acpi_rs_get_list_length ( */ if (13 < temp16) { temp8 = (u8) (temp16 - 14); - } - else { + } else { temp8 = 0; } - /* - * Ensure a 32-bit boundary for the structure - */ - temp8 = (u8) ACPI_ROUND_UP_to_32_bITS (temp8); + /* Ensure a 32-bit boundary for the structure */ - structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_address16) + - (temp8 * sizeof (u8)); - break; + temp8 = (u8) ACPI_ROUND_UP_to_32_bITS(temp8); + structure_size = + ACPI_SIZEOF_RESOURCE(struct acpi_resource_address16) + + (temp8 * sizeof(u8)); + break; case ACPI_RDESC_TYPE_EXTENDED_XRUPT: /* @@ -505,7 +497,7 @@ acpi_rs_get_list_length ( buffer = byte_stream_buffer; ++buffer; - ACPI_MOVE_16_TO_16 (&temp16, buffer); + ACPI_MOVE_16_TO_16(&temp16, buffer); bytes_consumed = temp16 + 3; @@ -532,21 +524,19 @@ acpi_rs_get_list_length ( */ if (9 + additional_bytes < temp16) { temp8 = (u8) (temp16 - (9 + additional_bytes)); - } - else { + } else { temp8 = 0; } - /* - * Ensure a 32-bit boundary for the structure - */ - temp8 = (u8) ACPI_ROUND_UP_to_32_bITS (temp8); + /* Ensure a 32-bit boundary for the structure */ - structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_ext_irq) + - (additional_bytes * sizeof (u8)) + - (temp8 * sizeof (u8)); - break; + temp8 = (u8) ACPI_ROUND_UP_to_32_bITS(temp8); + structure_size = + ACPI_SIZEOF_RESOURCE(struct acpi_resource_ext_irq) + + (additional_bytes * sizeof(u8)) + + (temp8 * sizeof(u8)); + break; case ACPI_RDESC_TYPE_IRQ_FORMAT: /* @@ -556,10 +546,9 @@ acpi_rs_get_list_length ( buffer = byte_stream_buffer; temp8 = *buffer; - if(temp8 & 0x01) { + if (temp8 & 0x01) { bytes_consumed = 4; - } - else { + } else { bytes_consumed = 3; } @@ -567,10 +556,9 @@ acpi_rs_get_list_length ( ++buffer; - /* - * Look at the number of bits set - */ - ACPI_MOVE_16_TO_16 (&temp16, buffer); + /* Look at the number of bits set */ + + ACPI_MOVE_16_TO_16(&temp16, buffer); for (index = 0; index < 16; index++) { if (temp16 & 0x1) { @@ -580,11 +568,11 @@ acpi_rs_get_list_length ( temp16 >>= 1; } - structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_io) + - (number_of_interrupts * sizeof (u32)); + structure_size = + ACPI_SIZEOF_RESOURCE(struct acpi_resource_io) + + (number_of_interrupts * sizeof(u32)); break; - case ACPI_RDESC_TYPE_DMA_FORMAT: /* * DMA Resource @@ -596,24 +584,23 @@ acpi_rs_get_list_length ( ++buffer; - /* - * Look at the number of bits set - */ + /* Look at the number of bits set */ + temp8 = *buffer; - for(index = 0; index < 8; index++) { - if(temp8 & 0x1) { + for (index = 0; index < 8; index++) { + if (temp8 & 0x1) { ++number_of_channels; } temp8 >>= 1; } - structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_dma) + - (number_of_channels * sizeof (u32)); + structure_size = + ACPI_SIZEOF_RESOURCE(struct acpi_resource_dma) + + (number_of_channels * sizeof(u32)); break; - case ACPI_RDESC_TYPE_START_DEPENDENT: /* * Start Dependent Functions Resource @@ -622,17 +609,17 @@ acpi_rs_get_list_length ( buffer = byte_stream_buffer; temp8 = *buffer; - if(temp8 & 0x01) { + if (temp8 & 0x01) { bytes_consumed = 2; - } - else { + } else { bytes_consumed = 1; } - structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_start_dpf); + structure_size = + ACPI_SIZEOF_RESOURCE(struct + acpi_resource_start_dpf); break; - case ACPI_RDESC_TYPE_END_DEPENDENT: /* * End Dependent Functions Resource @@ -641,25 +628,24 @@ acpi_rs_get_list_length ( structure_size = ACPI_RESOURCE_LENGTH; break; - case ACPI_RDESC_TYPE_IO_PORT: /* * IO Port Resource */ bytes_consumed = 8; - structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_io); + structure_size = + ACPI_SIZEOF_RESOURCE(struct acpi_resource_io); break; - case ACPI_RDESC_TYPE_FIXED_IO_PORT: /* * Fixed IO Port Resource */ bytes_consumed = 4; - structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_fixed_io); + structure_size = + ACPI_SIZEOF_RESOURCE(struct acpi_resource_fixed_io); break; - case ACPI_RDESC_TYPE_SMALL_VENDOR: /* * Vendor Specific Resource @@ -670,14 +656,13 @@ acpi_rs_get_list_length ( temp8 = (u8) (temp8 & 0x7); bytes_consumed = temp8 + 1; - /* - * Ensure a 32-bit boundary for the structure - */ - temp8 = (u8) ACPI_ROUND_UP_to_32_bITS (temp8); - structure_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_vendor) + - (temp8 * sizeof (u8)); - break; + /* Ensure a 32-bit boundary for the structure */ + temp8 = (u8) ACPI_ROUND_UP_to_32_bITS(temp8); + structure_size = + ACPI_SIZEOF_RESOURCE(struct acpi_resource_vendor) + + (temp8 * sizeof(u8)); + break; case ACPI_RDESC_TYPE_END_TAG: /* @@ -688,35 +673,30 @@ acpi_rs_get_list_length ( byte_stream_buffer_length = bytes_parsed; break; - default: /* * If we get here, everything is out of sync, * exit with an error */ - return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE); + return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); } - /* - * Update the return value and counter - */ - buffer_size += (u32) ACPI_ALIGN_RESOURCE_SIZE (structure_size); + /* Update the return value and counter */ + + buffer_size += (u32) ACPI_ALIGN_RESOURCE_SIZE(structure_size); bytes_parsed += bytes_consumed; - /* - * Set the byte stream to point to the next resource - */ + /* Set the byte stream to point to the next resource */ + byte_stream_buffer += bytes_consumed; } - /* - * This is the data the caller needs - */ + /* This is the data the caller needs */ + *size_needed = buffer_size; - return_ACPI_STATUS (AE_OK); + return_ACPI_STATUS(AE_OK); } - /******************************************************************************* * * FUNCTION: acpi_rs_get_pci_routing_table_length @@ -735,22 +715,19 @@ acpi_rs_get_list_length ( ******************************************************************************/ acpi_status -acpi_rs_get_pci_routing_table_length ( - union acpi_operand_object *package_object, - acpi_size *buffer_size_needed) +acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object, + acpi_size * buffer_size_needed) { - u32 number_of_elements; - acpi_size temp_size_needed = 0; - union acpi_operand_object **top_object_list; - u32 index; - union acpi_operand_object *package_element; - union acpi_operand_object **sub_object_list; - u8 name_found; - u32 table_index; - - - ACPI_FUNCTION_TRACE ("rs_get_pci_routing_table_length"); + u32 number_of_elements; + acpi_size temp_size_needed = 0; + union acpi_operand_object **top_object_list; + u32 index; + union acpi_operand_object *package_element; + union acpi_operand_object **sub_object_list; + u8 name_found; + u32 table_index; + ACPI_FUNCTION_TRACE("rs_get_pci_routing_table_length"); number_of_elements = package_object->package.count; @@ -767,9 +744,8 @@ acpi_rs_get_pci_routing_table_length ( top_object_list = package_object->package.elements; for (index = 0; index < number_of_elements; index++) { - /* - * Dereference the sub-package - */ + /* Dereference the sub-package */ + package_element = *top_object_list; /* @@ -778,64 +754,66 @@ acpi_rs_get_pci_routing_table_length ( */ sub_object_list = package_element->package.elements; - /* - * Scan the irq_table_elements for the Source Name String - */ + /* Scan the irq_table_elements for the Source Name String */ + name_found = FALSE; - for (table_index = 0; table_index < 4 && !name_found; table_index++) { - if ((ACPI_TYPE_STRING == ACPI_GET_OBJECT_TYPE (*sub_object_list)) || - ((ACPI_TYPE_LOCAL_REFERENCE == ACPI_GET_OBJECT_TYPE (*sub_object_list)) && - ((*sub_object_list)->reference.opcode == AML_INT_NAMEPATH_OP))) { + for (table_index = 0; table_index < 4 && !name_found; + table_index++) { + if ((ACPI_TYPE_STRING == + ACPI_GET_OBJECT_TYPE(*sub_object_list)) + || + ((ACPI_TYPE_LOCAL_REFERENCE == + ACPI_GET_OBJECT_TYPE(*sub_object_list)) + && ((*sub_object_list)->reference.opcode == + AML_INT_NAMEPATH_OP))) { name_found = TRUE; - } - else { - /* - * Look at the next element - */ + } else { + /* Look at the next element */ + sub_object_list++; } } - temp_size_needed += (sizeof (struct acpi_pci_routing_table) - 4); + temp_size_needed += (sizeof(struct acpi_pci_routing_table) - 4); + + /* Was a String type found? */ - /* - * Was a String type found? - */ if (name_found) { - if (ACPI_GET_OBJECT_TYPE (*sub_object_list) == ACPI_TYPE_STRING) { + if (ACPI_GET_OBJECT_TYPE(*sub_object_list) == + ACPI_TYPE_STRING) { /* * The length String.Length field does not include the * terminating NULL, add 1 */ - temp_size_needed += ((acpi_size) (*sub_object_list)->string.length + 1); - } - else { - temp_size_needed += acpi_ns_get_pathname_length ( - (*sub_object_list)->reference.node); + temp_size_needed += ((acpi_size) + (*sub_object_list)->string. + length + 1); + } else { + temp_size_needed += acpi_ns_get_pathname_length((*sub_object_list)->reference.node); } - } - else { + } else { /* * If no name was found, then this is a NULL, which is * translated as a u32 zero. */ - temp_size_needed += sizeof (u32); + temp_size_needed += sizeof(u32); } /* Round up the size since each element must be aligned */ - temp_size_needed = ACPI_ROUND_UP_to_64_bITS (temp_size_needed); + temp_size_needed = ACPI_ROUND_UP_to_64_bITS(temp_size_needed); + + /* Point to the next union acpi_operand_object */ - /* - * Point to the next union acpi_operand_object - */ top_object_list++; } /* - * Adding an extra element to the end of the list, essentially a NULL terminator + * Adding an extra element to the end of the list, essentially a + * NULL terminator */ - *buffer_size_needed = temp_size_needed + sizeof (struct acpi_pci_routing_table); - return_ACPI_STATUS (AE_OK); + *buffer_size_needed = + temp_size_needed + sizeof(struct acpi_pci_routing_table); + return_ACPI_STATUS(AE_OK); } |