diff options
Diffstat (limited to 'drivers/acpi/resources/rsutils.c')
| -rw-r--r-- | drivers/acpi/resources/rsutils.c | 95 |
1 files changed, 53 insertions, 42 deletions
diff --git a/drivers/acpi/resources/rsutils.c b/drivers/acpi/resources/rsutils.c index 0e493f2fec4d..a9cbee8e8b44 100644 --- a/drivers/acpi/resources/rsutils.c +++ b/drivers/acpi/resources/rsutils.c @@ -442,7 +442,7 @@ acpi_rs_set_resource_source(union aml_resource * aml, * * FUNCTION: acpi_rs_get_prt_method_data * - * PARAMETERS: Handle - Handle to the containing object + * PARAMETERS: Node - Device node * ret_buffer - Pointer to a buffer structure for the * results * @@ -457,7 +457,8 @@ acpi_rs_set_resource_source(union aml_resource * aml, ******************************************************************************/ acpi_status -acpi_rs_get_prt_method_data(acpi_handle handle, struct acpi_buffer * ret_buffer) +acpi_rs_get_prt_method_data(struct acpi_namespace_node * node, + struct acpi_buffer * ret_buffer) { union acpi_operand_object *obj_desc; acpi_status status; @@ -468,7 +469,7 @@ acpi_rs_get_prt_method_data(acpi_handle handle, struct acpi_buffer * ret_buffer) /* Execute the method, no parameters */ - status = acpi_ut_evaluate_object(handle, METHOD_NAME__PRT, + status = acpi_ut_evaluate_object(node, METHOD_NAME__PRT, ACPI_BTYPE_PACKAGE, &obj_desc); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); @@ -490,7 +491,7 @@ acpi_rs_get_prt_method_data(acpi_handle handle, struct acpi_buffer * ret_buffer) * * FUNCTION: acpi_rs_get_crs_method_data * - * PARAMETERS: Handle - Handle to the containing object + * PARAMETERS: Node - Device node * ret_buffer - Pointer to a buffer structure for the * results * @@ -505,7 +506,8 @@ acpi_rs_get_prt_method_data(acpi_handle handle, struct acpi_buffer * ret_buffer) ******************************************************************************/ acpi_status -acpi_rs_get_crs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer) +acpi_rs_get_crs_method_data(struct acpi_namespace_node *node, + struct acpi_buffer *ret_buffer) { union acpi_operand_object *obj_desc; acpi_status status; @@ -516,7 +518,7 @@ acpi_rs_get_crs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer) /* Execute the method, no parameters */ - status = acpi_ut_evaluate_object(handle, METHOD_NAME__CRS, + status = acpi_ut_evaluate_object(node, METHOD_NAME__CRS, ACPI_BTYPE_BUFFER, &obj_desc); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); @@ -539,7 +541,7 @@ acpi_rs_get_crs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer) * * FUNCTION: acpi_rs_get_prs_method_data * - * PARAMETERS: Handle - Handle to the containing object + * PARAMETERS: Node - Device node * ret_buffer - Pointer to a buffer structure for the * results * @@ -555,7 +557,8 @@ acpi_rs_get_crs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer) #ifdef ACPI_FUTURE_USAGE acpi_status -acpi_rs_get_prs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer) +acpi_rs_get_prs_method_data(struct acpi_namespace_node *node, + struct acpi_buffer *ret_buffer) { union acpi_operand_object *obj_desc; acpi_status status; @@ -566,7 +569,7 @@ acpi_rs_get_prs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer) /* Execute the method, no parameters */ - status = acpi_ut_evaluate_object(handle, METHOD_NAME__PRS, + status = acpi_ut_evaluate_object(node, METHOD_NAME__PRS, ACPI_BTYPE_BUFFER, &obj_desc); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); @@ -641,7 +644,7 @@ acpi_rs_get_method_data(acpi_handle handle, * * FUNCTION: acpi_rs_set_srs_method_data * - * PARAMETERS: Handle - Handle to the containing object + * PARAMETERS: Node - Device node * in_buffer - Pointer to a buffer structure of the * parameter * @@ -653,23 +656,37 @@ acpi_rs_get_method_data(acpi_handle handle, * If the function fails an appropriate status will be returned * and the contents of the callers buffer is undefined. * + * Note: Parameters guaranteed valid by caller + * ******************************************************************************/ acpi_status -acpi_rs_set_srs_method_data(acpi_handle handle, struct acpi_buffer *in_buffer) +acpi_rs_set_srs_method_data(struct acpi_namespace_node *node, + struct acpi_buffer *in_buffer) { - struct acpi_parameter_info info; - union acpi_operand_object *params[2]; + struct acpi_evaluate_info *info; + union acpi_operand_object *args[2]; acpi_status status; struct acpi_buffer buffer; ACPI_FUNCTION_TRACE(rs_set_srs_method_data); - /* Parameters guaranteed valid by caller */ + /* Allocate and initialize the evaluation information block */ + + info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); + if (!info) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + info->prefix_node = node; + info->pathname = METHOD_NAME__SRS; + info->parameters = args; + info->parameter_type = ACPI_PARAM_ARGS; + info->flags = ACPI_IGNORE_RETURN_VALUE; /* * The in_buffer parameter will point to a linked list of - * resource parameters. It needs to be formatted into a + * resource parameters. It needs to be formatted into a * byte stream to be sent in as an input parameter to _SRS * * Convert the linked list into a byte stream @@ -677,42 +694,36 @@ acpi_rs_set_srs_method_data(acpi_handle handle, struct acpi_buffer *in_buffer) buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; status = acpi_rs_create_aml_resources(in_buffer->pointer, &buffer); if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); + goto cleanup; } - /* Init the param object */ + /* Create and initialize the method parameter object */ - params[0] = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER); - if (!params[0]) { - acpi_os_free(buffer.pointer); - return_ACPI_STATUS(AE_NO_MEMORY); + args[0] = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER); + if (!args[0]) { + /* + * Must free the buffer allocated above (otherwise it is freed + * later) + */ + ACPI_FREE(buffer.pointer); + status = AE_NO_MEMORY; + goto cleanup; } - /* Set up the parameter object */ - - params[0]->buffer.length = (u32) buffer.length; - params[0]->buffer.pointer = buffer.pointer; - params[0]->common.flags = AOPOBJ_DATA_VALID; - params[1] = NULL; + args[0]->buffer.length = (u32) buffer.length; + args[0]->buffer.pointer = buffer.pointer; + args[0]->common.flags = AOPOBJ_DATA_VALID; + args[1] = NULL; - info.node = handle; - info.parameters = params; - info.parameter_type = ACPI_PARAM_ARGS; + /* Execute the method, no return value is expected */ - /* Execute the method, no return value */ + status = acpi_ns_evaluate(info); - status = acpi_ns_evaluate_relative(METHOD_NAME__SRS, &info); - if (ACPI_SUCCESS(status)) { - - /* Delete any return object (especially if implicit_return is enabled) */ - - if (info.return_object) { - acpi_ut_remove_reference(info.return_object); - } - } + /* Clean up and return the status from acpi_ns_evaluate */ - /* Clean up and return the status from acpi_ns_evaluate_relative */ + acpi_ut_remove_reference(args[0]); - acpi_ut_remove_reference(params[0]); + cleanup: + ACPI_FREE(info); return_ACPI_STATUS(status); } |