X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Facpi%2Futils.c;h=c08fb741e04fa0731787c01563deb6814976ca94;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=1ce2047c3804d828fd16404838154af9e9bec8be;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index 1ce2047c3..c08fb741e 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -30,15 +30,12 @@ #include #include - #define _COMPONENT ACPI_BUS_COMPONENT -ACPI_MODULE_NAME ("acpi_utils") - +ACPI_MODULE_NAME("acpi_utils") /* -------------------------------------------------------------------------- Object Evaluation Helpers -------------------------------------------------------------------------- */ - #ifdef ACPI_DEBUG_OUTPUT #define acpi_util_eval_error(h,p,s) {\ char prefix[80] = {'\0'};\ @@ -49,26 +46,24 @@ ACPI_MODULE_NAME ("acpi_utils") #else #define acpi_util_eval_error(h,p,s) #endif - - acpi_status -acpi_extract_package ( - union acpi_object *package, - struct acpi_buffer *format, - struct acpi_buffer *buffer) +acpi_extract_package(union acpi_object *package, + struct acpi_buffer *format, struct acpi_buffer *buffer) { - u32 size_required = 0; - u32 tail_offset = 0; - char *format_string = NULL; - u32 format_count = 0; - u32 i = 0; - u8 *head = NULL; - u8 *tail = NULL; + u32 size_required = 0; + u32 tail_offset = 0; + char *format_string = NULL; + u32 format_count = 0; + u32 i = 0; + u8 *head = NULL; + u8 *tail = NULL; ACPI_FUNCTION_TRACE("acpi_extract_package"); - if (!package || (package->type != ACPI_TYPE_PACKAGE) || (package->package.count < 1)) { - ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Invalid 'package' argument\n")); + if (!package || (package->type != ACPI_TYPE_PACKAGE) + || (package->package.count < 1)) { + ACPI_DEBUG_PRINT((ACPI_DB_WARN, + "Invalid 'package' argument\n")); return_ACPI_STATUS(AE_BAD_PARAMETER); } @@ -82,18 +77,20 @@ acpi_extract_package ( return_ACPI_STATUS(AE_BAD_PARAMETER); } - format_count = (format->length/sizeof(char)) - 1; + format_count = (format->length / sizeof(char)) - 1; if (format_count > package->package.count) { - ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Format specifies more objects [%d] than exist in package [%d].", format_count, package->package.count)); + ACPI_DEBUG_PRINT((ACPI_DB_WARN, + "Format specifies more objects [%d] than exist in package [%d].", + format_count, package->package.count)); return_ACPI_STATUS(AE_BAD_DATA); } - format_string = (char*)format->pointer; + format_string = (char *)format->pointer; /* * Calculate size_required. */ - for (i=0; ipackage.elements[i]); @@ -110,11 +107,15 @@ acpi_extract_package ( tail_offset += sizeof(acpi_integer); break; case 'S': - size_required += sizeof(char*) + sizeof(acpi_integer) + sizeof(char); - tail_offset += sizeof(char*); + size_required += + sizeof(char *) + sizeof(acpi_integer) + + sizeof(char); + tail_offset += sizeof(char *); break; default: - ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Invalid package element [%d]: got number, expecing [%c].\n", i, format_string[i])); + ACPI_DEBUG_PRINT((ACPI_DB_WARN, + "Invalid package element [%d]: got number, expecing [%c].\n", + i, format_string[i])); return_ACPI_STATUS(AE_BAD_DATA); break; } @@ -124,15 +125,22 @@ acpi_extract_package ( case ACPI_TYPE_BUFFER: switch (format_string[i]) { case 'S': - size_required += sizeof(char*) + (element->string.length * sizeof(char)) + sizeof(char); - tail_offset += sizeof(char*); + size_required += + sizeof(char *) + + (element->string.length * sizeof(char)) + + sizeof(char); + tail_offset += sizeof(char *); break; case 'B': - size_required += sizeof(u8*) + (element->buffer.length * sizeof(u8)); - tail_offset += sizeof(u8*); + size_required += + sizeof(u8 *) + + (element->buffer.length * sizeof(u8)); + tail_offset += sizeof(u8 *); break; default: - ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Invalid package element [%d] got string/buffer, expecing [%c].\n", i, format_string[i])); + ACPI_DEBUG_PRINT((ACPI_DB_WARN, + "Invalid package element [%d] got string/buffer, expecing [%c].\n", + i, format_string[i])); return_ACPI_STATUS(AE_BAD_DATA); break; } @@ -140,7 +148,9 @@ acpi_extract_package ( case ACPI_TYPE_PACKAGE: default: - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found unsupported element at index=%d\n", i)); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Found unsupported element at index=%d\n", + i)); /* TBD: handle nested packages... */ return_ACPI_STATUS(AE_SUPPORT); break; @@ -153,8 +163,7 @@ acpi_extract_package ( if (buffer->length < size_required) { buffer->length = size_required; return_ACPI_STATUS(AE_BUFFER_OVERFLOW); - } - else if (buffer->length != size_required || !buffer->pointer) { + } else if (buffer->length != size_required || !buffer->pointer) { return_ACPI_STATUS(AE_BAD_PARAMETER); } @@ -164,7 +173,7 @@ acpi_extract_package ( /* * Extract package data. */ - for (i=0; ipackage.elements[i]); @@ -178,14 +187,16 @@ acpi_extract_package ( case ACPI_TYPE_INTEGER: switch (format_string[i]) { case 'N': - *((acpi_integer*)head) = element->integer.value; + *((acpi_integer *) head) = + element->integer.value; head += sizeof(acpi_integer); break; case 'S': - pointer = (u8**)head; + pointer = (u8 **) head; *pointer = tail; - *((acpi_integer*)tail) = element->integer.value; - head += sizeof(acpi_integer*); + *((acpi_integer *) tail) = + element->integer.value; + head += sizeof(acpi_integer *); tail += sizeof(acpi_integer); /* NULL terminate string */ *tail = (char)0; @@ -201,20 +212,22 @@ acpi_extract_package ( case ACPI_TYPE_BUFFER: switch (format_string[i]) { case 'S': - pointer = (u8**)head; + pointer = (u8 **) head; *pointer = tail; - memcpy(tail, element->string.pointer, element->string.length); - head += sizeof(char*); + memcpy(tail, element->string.pointer, + element->string.length); + head += sizeof(char *); tail += element->string.length * sizeof(char); /* NULL terminate string */ *tail = (char)0; tail += sizeof(char); break; case 'B': - pointer = (u8**)head; + pointer = (u8 **) head; *pointer = tail; - memcpy(tail, element->buffer.pointer, element->buffer.length); - head += sizeof(u8*); + memcpy(tail, element->buffer.pointer, + element->buffer.length); + head += sizeof(u8 *); tail += element->buffer.length * sizeof(u8); break; default: @@ -233,27 +246,29 @@ acpi_extract_package ( return_ACPI_STATUS(AE_OK); } -EXPORT_SYMBOL(acpi_extract_package); +EXPORT_SYMBOL(acpi_extract_package); +extern int acpi_in_resume; acpi_status -acpi_evaluate_integer ( - acpi_handle handle, - acpi_string pathname, - struct acpi_object_list *arguments, - unsigned long *data) +acpi_evaluate_integer(acpi_handle handle, + acpi_string pathname, + struct acpi_object_list *arguments, unsigned long *data) { - acpi_status status = AE_OK; - union acpi_object *element; - struct acpi_buffer buffer = {0,NULL}; + acpi_status status = AE_OK; + union acpi_object *element; + struct acpi_buffer buffer = { 0, NULL }; ACPI_FUNCTION_TRACE("acpi_evaluate_integer"); if (!data) return_ACPI_STATUS(AE_BAD_PARAMETER); - element = kmalloc(sizeof(union acpi_object), GFP_KERNEL); - if(!element) + if (acpi_in_resume) + element = kmalloc(sizeof(union acpi_object), GFP_ATOMIC); + else + element = kmalloc(sizeof(union acpi_object), GFP_KERNEL); + if (!element) return_ACPI_STATUS(AE_NO_MEMORY); memset(element, 0, sizeof(union acpi_object)); @@ -277,20 +292,18 @@ acpi_evaluate_integer ( return_ACPI_STATUS(AE_OK); } -EXPORT_SYMBOL(acpi_evaluate_integer); +EXPORT_SYMBOL(acpi_evaluate_integer); #if 0 acpi_status -acpi_evaluate_string ( - acpi_handle handle, - acpi_string pathname, - acpi_object_list *arguments, - acpi_string *data) +acpi_evaluate_string(acpi_handle handle, + acpi_string pathname, + acpi_object_list * arguments, acpi_string * data) { - acpi_status status = AE_OK; - acpi_object *element = NULL; - acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; + acpi_status status = AE_OK; + acpi_object *element = NULL; + acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; ACPI_FUNCTION_TRACE("acpi_evaluate_string"); @@ -305,9 +318,9 @@ acpi_evaluate_string ( element = (acpi_object *) buffer.pointer; - if ((element->type != ACPI_TYPE_STRING) - || (element->type != ACPI_TYPE_BUFFER) - || !element->string.length) { + if ((element->type != ACPI_TYPE_STRING) + || (element->type != ACPI_TYPE_BUFFER) + || !element->string.length) { acpi_util_eval_error(handle, pathname, AE_BAD_DATA); return_ACPI_STATUS(AE_BAD_DATA); } @@ -329,19 +342,17 @@ acpi_evaluate_string ( } #endif - acpi_status -acpi_evaluate_reference ( - acpi_handle handle, - acpi_string pathname, - struct acpi_object_list *arguments, - struct acpi_handle_list *list) +acpi_evaluate_reference(acpi_handle handle, + acpi_string pathname, + struct acpi_object_list *arguments, + struct acpi_handle_list *list) { - acpi_status status = AE_OK; - union acpi_object *package = NULL; - union acpi_object *element = NULL; - struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; - u32 i = 0; + acpi_status status = AE_OK; + union acpi_object *package = NULL; + union acpi_object *element = NULL; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + u32 i = 0; ACPI_FUNCTION_TRACE("acpi_evaluate_reference"); @@ -355,28 +366,28 @@ acpi_evaluate_reference ( if (ACPI_FAILURE(status)) goto end; - package = (union acpi_object *) buffer.pointer; + package = (union acpi_object *)buffer.pointer; if ((buffer.length == 0) || !package) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "No return object (len %X ptr %p)\n", - (unsigned)buffer.length, package)); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "No return object (len %X ptr %p)\n", + (unsigned)buffer.length, package)); status = AE_BAD_DATA; acpi_util_eval_error(handle, pathname, status); goto end; } if (package->type != ACPI_TYPE_PACKAGE) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Expecting a [Package], found type %X\n", - package->type)); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Expecting a [Package], found type %X\n", + package->type)); status = AE_BAD_DATA; acpi_util_eval_error(handle, pathname, status); goto end; } if (!package->package.count) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "[Package] has zero elements (%p)\n", - package)); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "[Package] has zero elements (%p)\n", + package)); status = AE_BAD_DATA; acpi_util_eval_error(handle, pathname, status); goto end; @@ -395,9 +406,9 @@ acpi_evaluate_reference ( if (element->type != ACPI_TYPE_ANY) { status = AE_BAD_DATA; - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Expecting a [Reference] package element, found type %X\n", - element->type)); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Expecting a [Reference] package element, found type %X\n", + element->type)); acpi_util_eval_error(handle, pathname, status); break; } @@ -406,10 +417,10 @@ acpi_evaluate_reference ( list->handles[i] = element->reference.handle; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found reference [%p]\n", - list->handles[i])); + list->handles[i])); } -end: + end: if (ACPI_FAILURE(status)) { list->count = 0; //kfree(list->handles); @@ -419,5 +430,5 @@ end: return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_evaluate_reference); +EXPORT_SYMBOL(acpi_evaluate_reference);