diff options
Diffstat (limited to 'drivers/acpi/acpica/rsutils.c')
| -rw-r--r-- | drivers/acpi/acpica/rsutils.c | 121 |
1 files changed, 92 insertions, 29 deletions
diff --git a/drivers/acpi/acpica/rsutils.c b/drivers/acpi/acpica/rsutils.c index bc03d596682..897a5ceb042 100644 --- a/drivers/acpi/acpica/rsutils.c +++ b/drivers/acpi/acpica/rsutils.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2008, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -53,8 +53,8 @@ ACPI_MODULE_NAME("rsutils") * * FUNCTION: acpi_rs_decode_bitmask * - * PARAMETERS: Mask - Bitmask to decode - * List - Where the converted list is returned + * PARAMETERS: mask - Bitmask to decode + * list - Where the converted list is returned * * RETURN: Count of bits set (length of list) * @@ -86,8 +86,8 @@ u8 acpi_rs_decode_bitmask(u16 mask, u8 * list) * * FUNCTION: acpi_rs_encode_bitmask * - * PARAMETERS: List - List of values to encode - * Count - Length of list + * PARAMETERS: list - List of values to encode + * count - Length of list * * RETURN: Encoded bitmask * @@ -108,15 +108,15 @@ u16 acpi_rs_encode_bitmask(u8 * list, u8 count) mask |= (0x1 << list[i]); } - return mask; + return (mask); } /******************************************************************************* * * FUNCTION: acpi_rs_move_data * - * PARAMETERS: Destination - Pointer to the destination descriptor - * Source - Pointer to the source descriptor + * PARAMETERS: destination - Pointer to the destination descriptor + * source - Pointer to the source descriptor * item_count - How many items to move * move_type - Byte width * @@ -144,30 +144,39 @@ acpi_rs_move_data(void *destination, void *source, u16 item_count, u8 move_type) * since there are no alignment or endian issues */ case ACPI_RSC_MOVE8: + case ACPI_RSC_MOVE_GPIO_RES: + case ACPI_RSC_MOVE_SERIAL_VEN: + case ACPI_RSC_MOVE_SERIAL_RES: + ACPI_MEMCPY(destination, source, item_count); return; /* * 16-, 32-, and 64-bit cases must use the move macros that perform - * endian conversion and/or accomodate hardware that cannot perform + * endian conversion and/or accommodate hardware that cannot perform * misaligned memory transfers */ case ACPI_RSC_MOVE16: + case ACPI_RSC_MOVE_GPIO_PIN: + ACPI_MOVE_16_TO_16(&ACPI_CAST_PTR(u16, destination)[i], &ACPI_CAST_PTR(u16, source)[i]); break; case ACPI_RSC_MOVE32: + ACPI_MOVE_32_TO_32(&ACPI_CAST_PTR(u32, destination)[i], &ACPI_CAST_PTR(u32, source)[i]); break; case ACPI_RSC_MOVE64: + ACPI_MOVE_64_TO_64(&ACPI_CAST_PTR(u64, destination)[i], &ACPI_CAST_PTR(u64, source)[i]); break; default: + return; } } @@ -179,7 +188,7 @@ acpi_rs_move_data(void *destination, void *source, u16 item_count, u8 move_type) * * PARAMETERS: total_length - Length of the AML descriptor, including * the header and length fields. - * Aml - Pointer to the raw AML descriptor + * aml - Pointer to the raw AML descriptor * * RETURN: None * @@ -231,7 +240,7 @@ acpi_rs_set_resource_length(acpi_rsdesc_size total_length, * PARAMETERS: descriptor_type - Byte to be inserted as the type * total_length - Length of the AML descriptor, including * the header and length fields. - * Aml - Pointer to the raw AML descriptor + * aml - Pointer to the raw AML descriptor * * RETURN: None * @@ -261,8 +270,8 @@ acpi_rs_set_resource_header(u8 descriptor_type, * * FUNCTION: acpi_rs_strcpy * - * PARAMETERS: Destination - Pointer to the destination string - * Source - Pointer to the source string + * PARAMETERS: destination - Pointer to the destination string + * source - Pointer to the source string * * RETURN: String length, including NULL terminator * @@ -296,7 +305,7 @@ static u16 acpi_rs_strcpy(char *destination, char *source) * minimum_length - Minimum length of the descriptor (minus * any optional fields) * resource_source - Where the resource_source is returned - * Aml - Pointer to the raw AML descriptor + * aml - Pointer to the raw AML descriptor * string_ptr - (optional) where to store the actual * resource_source string * @@ -354,8 +363,10 @@ acpi_rs_get_resource_source(acpi_rs_length resource_length, * * Zero the entire area of the buffer. */ - total_length = (u32) - ACPI_STRLEN(ACPI_CAST_PTR(char, &aml_resource_source[1])) + 1; + total_length = + (u32) + ACPI_STRLEN(ACPI_CAST_PTR(char, &aml_resource_source[1])) + + 1; total_length = (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(total_length); ACPI_MEMSET(resource_source->string_ptr, 0, total_length); @@ -382,7 +393,7 @@ acpi_rs_get_resource_source(acpi_rs_length resource_length, * * FUNCTION: acpi_rs_set_resource_source * - * PARAMETERS: Aml - Pointer to the raw AML descriptor + * PARAMETERS: aml - Pointer to the raw AML descriptor * minimum_length - Minimum length of the descriptor (minus * any optional fields) * resource_source - Internal resource_source @@ -441,7 +452,7 @@ acpi_rs_set_resource_source(union aml_resource * aml, * * FUNCTION: acpi_rs_get_prt_method_data * - * PARAMETERS: Node - Device node + * PARAMETERS: node - Device node * ret_buffer - Pointer to a buffer structure for the * results * @@ -490,7 +501,7 @@ acpi_rs_get_prt_method_data(struct acpi_namespace_node * node, * * FUNCTION: acpi_rs_get_crs_method_data * - * PARAMETERS: Node - Device node + * PARAMETERS: node - Device node * ret_buffer - Pointer to a buffer structure for the * results * @@ -530,7 +541,7 @@ acpi_rs_get_crs_method_data(struct acpi_namespace_node *node, */ status = acpi_rs_create_resource_list(obj_desc, ret_buffer); - /* On exit, we must delete the object returned by evaluate_object */ + /* On exit, we must delete the object returned by evaluateObject */ acpi_ut_remove_reference(obj_desc); return_ACPI_STATUS(status); @@ -540,7 +551,7 @@ acpi_rs_get_crs_method_data(struct acpi_namespace_node *node, * * FUNCTION: acpi_rs_get_prs_method_data * - * PARAMETERS: Node - Device node + * PARAMETERS: node - Device node * ret_buffer - Pointer to a buffer structure for the * results * @@ -581,7 +592,7 @@ acpi_rs_get_prs_method_data(struct acpi_namespace_node *node, */ status = acpi_rs_create_resource_list(obj_desc, ret_buffer); - /* On exit, we must delete the object returned by evaluate_object */ + /* On exit, we must delete the object returned by evaluateObject */ acpi_ut_remove_reference(obj_desc); return_ACPI_STATUS(status); @@ -590,10 +601,60 @@ acpi_rs_get_prs_method_data(struct acpi_namespace_node *node, /******************************************************************************* * + * FUNCTION: acpi_rs_get_aei_method_data + * + * PARAMETERS: node - Device node + * ret_buffer - Pointer to a buffer structure for the + * results + * + * RETURN: Status + * + * DESCRIPTION: This function is called to get the _AEI value of an object + * contained in an object specified by the handle passed in + * + * If the function fails an appropriate status will be returned + * and the contents of the callers buffer is undefined. + * + ******************************************************************************/ + +acpi_status +acpi_rs_get_aei_method_data(struct acpi_namespace_node *node, + struct acpi_buffer *ret_buffer) +{ + union acpi_operand_object *obj_desc; + acpi_status status; + + ACPI_FUNCTION_TRACE(rs_get_aei_method_data); + + /* Parameters guaranteed valid by caller */ + + /* Execute the method, no parameters */ + + status = acpi_ut_evaluate_object(node, METHOD_NAME__AEI, + ACPI_BTYPE_BUFFER, &obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * Make the call to create a resource linked list from the + * byte stream buffer that comes back from the _CRS method + * execution. + */ + status = acpi_rs_create_resource_list(obj_desc, ret_buffer); + + /* On exit, we must delete the object returned by evaluateObject */ + + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * * FUNCTION: acpi_rs_get_method_data * - * PARAMETERS: Handle - Handle to the containing object - * Path - Path to method, relative to Handle + * PARAMETERS: handle - Handle to the containing object + * path - Path to method, relative to Handle * ret_buffer - Pointer to a buffer structure for the * results * @@ -621,7 +682,9 @@ acpi_rs_get_method_data(acpi_handle handle, /* Execute the method, no parameters */ status = - acpi_ut_evaluate_object(handle, path, ACPI_BTYPE_BUFFER, &obj_desc); + acpi_ut_evaluate_object(ACPI_CAST_PTR + (struct acpi_namespace_node, handle), path, + ACPI_BTYPE_BUFFER, &obj_desc); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -643,7 +706,7 @@ acpi_rs_get_method_data(acpi_handle handle, * * FUNCTION: acpi_rs_set_srs_method_data * - * PARAMETERS: Node - Device node + * PARAMETERS: node - Device node * in_buffer - Pointer to a buffer structure of the * parameter * @@ -678,7 +741,7 @@ acpi_rs_set_srs_method_data(struct acpi_namespace_node *node, } info->prefix_node = node; - info->pathname = METHOD_NAME__SRS; + info->relative_pathname = METHOD_NAME__SRS; info->parameters = args; info->flags = ACPI_IGNORE_RETURN_VALUE; @@ -690,7 +753,7 @@ acpi_rs_set_srs_method_data(struct acpi_namespace_node *node, * Convert the linked list into a byte stream */ buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; - status = acpi_rs_create_aml_resources(in_buffer->pointer, &buffer); + status = acpi_rs_create_aml_resources(in_buffer, &buffer); if (ACPI_FAILURE(status)) { goto cleanup; } @@ -721,7 +784,7 @@ acpi_rs_set_srs_method_data(struct acpi_namespace_node *node, acpi_ut_remove_reference(args[0]); - cleanup: +cleanup: ACPI_FREE(info); return_ACPI_STATUS(status); } |