static u8 acpi_rs_encode_specific_flags(union acpi_resource_data *resource);
+static void
+acpi_rs_set_address_common(union aml_resource *aml,
+ struct acpi_resource *resource);
+
+static u8
+acpi_rs_get_address_common(struct acpi_resource *resource,
+ union aml_resource *aml);
+
/*******************************************************************************
*
* FUNCTION: acpi_rs_decode_general_flags
*
* PARAMETERS: Resource - Address resource data struct
- * Flags - Actual flag byte
+ * Flags - Raw AML flag byte
*
* RETURN: Decoded flag bits in resource struct
*
static u8 acpi_rs_encode_general_flags(union acpi_resource_data *resource)
{
- u8 flags;
-
ACPI_FUNCTION_ENTRY();
- /* Producer / Consumer - flag bit[0] */
-
- flags = (u8) (resource->address.producer_consumer & 0x01);
-
- /* Decode (_DEC) - flag bit[1] */
-
- flags |= (u8) ((resource->address.decode & 0x01) << 1);
-
- /* Min Address Fixed (_MIF) - flag bit[2] */
-
- flags |= (u8) ((resource->address.min_address_fixed & 0x01) << 2);
-
- /* Max Address Fixed (_MAF) - flag bit[3] */
-
- flags |= (u8) ((resource->address.max_address_fixed & 0x01) << 3);
-
- return (flags);
+ return ((u8)
+
+ /* Producer / Consumer - flag bit[0] */
+ ((resource->address.producer_consumer & 0x01) |
+ /* Decode (_DEC) - flag bit[1] */
+ ((resource->address.decode & 0x01) << 1) |
+ /* Min Address Fixed (_MIF) - flag bit[2] */
+ ((resource->address.min_address_fixed & 0x01) << 2) |
+ /* Max Address Fixed (_MAF) - flag bit[3] */
+ ((resource->address.max_address_fixed & 0x01) << 3))
+ );
}
/*******************************************************************************
* FUNCTION: acpi_rs_decode_specific_flags
*
* PARAMETERS: Resource - Address resource data struct
- * Flags - Actual flag byte
+ * Flags - Raw AML flag byte
*
* RETURN: Decoded flag bits in attribute struct
*
static u8 acpi_rs_encode_specific_flags(union acpi_resource_data *resource)
{
- u8 flags = 0;
-
ACPI_FUNCTION_ENTRY();
if (resource->address.resource_type == ACPI_MEMORY_RANGE) {
- /* Write Status (_RW) - flag bit[0] */
-
- flags = (u8)
- (resource->address.attribute.memory.
- read_write_attribute & 0x01);
-
- /* Memory Attributes (_MEM) - flag bits[2:1] */
-
- flags |= (u8)
- ((resource->address.attribute.memory.
- cache_attribute & 0x03) << 1);
+ return ((u8)
+
+ /* Write Status (_RW) - flag bit[0] */
+ ((resource->address.attribute.memory.
+ read_write_attribute & 0x01) |
+ /* Memory Attributes (_MEM) - flag bits[2:1] */
+ ((resource->address.attribute.memory.
+ cache_attribute & 0x03) << 1)));
} else if (resource->address.resource_type == ACPI_IO_RANGE) {
- /* Ranges (_RNG) - flag bits[1:0] */
-
- flags = (u8)
- (resource->address.attribute.io.range_attribute & 0x03);
-
- /* Translations (_TTP and _TRS) - flag bits[5:4] */
-
- flags |= (u8)
- ((resource->address.attribute.io.
- translation_attribute & 0x03) << 4);
+ return ((u8)
+
+ /* Ranges (_RNG) - flag bits[1:0] */
+ ((resource->address.attribute.io.
+ range_attribute & 0x03) |
+ /* Translations (_TTP and _TRS) - flag bits[5:4] */
+ ((resource->address.attribute.io.
+ translation_attribute & 0x03) << 4)));
}
- return (flags);
+ return (0);
}
/*******************************************************************************
*
- * FUNCTION: acpi_rs_address16_resource
+ * FUNCTION: acpi_rs_set_address_common
*
- * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte
- * stream
- * bytes_consumed - Pointer to where the number of bytes
- * consumed the byte_stream_buffer is
- * returned
- * output_buffer - Pointer to the return data buffer
- * structure_size - Pointer to where the number of bytes
- * in the return data struct is returned
+ * PARAMETERS: Aml - Pointer to the AML resource descriptor
+ * Resource - Pointer to the internal resource struct
*
- * RETURN: Status
+ * RETURN: None
*
- * DESCRIPTION: Take the resource byte stream and fill out the appropriate
- * structure pointed to by the output_buffer. Return the
- * number of bytes consumed from the byte stream.
+ * DESCRIPTION: Convert common flag fields from a resource descriptor to an
+ * AML descriptor
*
******************************************************************************/
-acpi_status
-acpi_rs_address16_resource(u8 * byte_stream_buffer,
- acpi_size * bytes_consumed,
- u8 ** output_buffer, acpi_size * structure_size)
+static void
+acpi_rs_set_address_common(union aml_resource *aml,
+ struct acpi_resource *resource)
{
- u32 index;
- u16 temp16;
- u8 temp8;
- u8 *temp_ptr;
- u8 *buffer = byte_stream_buffer;
- struct acpi_resource *output_struct = (void *)*output_buffer;
- acpi_size struct_size =
- ACPI_SIZEOF_RESOURCE(struct acpi_resource_address16);
+ ACPI_FUNCTION_ENTRY();
- ACPI_FUNCTION_TRACE("rs_address16_resource");
+ /* Set the Resource Type (Memory, Io, bus_number, etc.) */
- /* Get the Descriptor Length field */
+ aml->address.resource_type = (u8) resource->data.address.resource_type;
- buffer += 1;
- ACPI_MOVE_16_TO_16(&temp16, buffer);
+ /* Set the general flags */
- /* Validate minimum descriptor length */
+ aml->address.flags = acpi_rs_encode_general_flags(&resource->data);
- if (temp16 < 13) {
- return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
- }
+ /* Set the type-specific flags */
- *bytes_consumed = temp16 + 3;
- output_struct->type = ACPI_RSTYPE_ADDRESS16;
+ aml->address.specific_flags =
+ acpi_rs_encode_specific_flags(&resource->data);
+}
- /* Get the Resource Type (Byte3) */
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_get_address_common
+ *
+ * PARAMETERS: Resource - Pointer to the internal resource struct
+ * Aml - Pointer to the AML resource descriptor
+ *
+ * RETURN: TRUE if the resource_type field is OK, FALSE otherwise
+ *
+ * DESCRIPTION: Convert common flag fields from a raw AML resource descriptor
+ * to an internal resource descriptor
+ *
+ ******************************************************************************/
- buffer += 2;
- temp8 = *buffer;
+static u8
+acpi_rs_get_address_common(struct acpi_resource *resource,
+ union aml_resource *aml)
+{
+ ACPI_FUNCTION_ENTRY();
- /* Values 0-2 and 0xC0-0xFF are valid */
+ /* Validate resource type */
- if ((temp8 > 2) && (temp8 < 0xC0)) {
- return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE);
+ if ((aml->address.resource_type > 2)
+ && (aml->address.resource_type < 0xC0)) {
+ return (FALSE);
}
- output_struct->data.address16.resource_type = temp8;
-
- /* Get the General Flags (Byte4) */
-
- buffer += 1;
- acpi_rs_decode_general_flags(&output_struct->data, *buffer);
-
- /* Get the Type Specific Flags (Byte5) */
-
- buffer += 1;
- acpi_rs_decode_specific_flags(&output_struct->data, *buffer);
-
- /* Get Granularity (Bytes 6-7) */
-
- buffer += 1;
- ACPI_MOVE_16_TO_32(&output_struct->data.address16.granularity, buffer);
+ /* Get the Resource Type (Memory, Io, bus_number, etc.) */
- /* Get min_address_range (Bytes 8-9) */
+ resource->data.address.resource_type = aml->address.resource_type;
- buffer += 2;
- ACPI_MOVE_16_TO_32(&output_struct->data.address16.min_address_range,
- buffer);
+ /* Get the General Flags */
- /* Get max_address_range (Bytes 10-11) */
+ acpi_rs_decode_general_flags(&resource->data, aml->address.flags);
- buffer += 2;
- ACPI_MOVE_16_TO_32(&output_struct->data.address16.max_address_range,
- buffer);
+ /* Get the Type-Specific Flags */
- /* Get address_translation_offset (Bytes 12-13) */
-
- buffer += 2;
- ACPI_MOVE_16_TO_32(&output_struct->data.address16.
- address_translation_offset, buffer);
+ acpi_rs_decode_specific_flags(&resource->data,
+ aml->address.specific_flags);
+ return (TRUE);
+}
- /* Get address_length (Bytes 14-15) */
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_get_address16
+ *
+ * PARAMETERS: Aml - Pointer to the AML resource descriptor
+ * aml_resource_length - Length of the resource from the AML header
+ * Resource - Where the internal resource is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding
+ * internal resource descriptor, simplifying bitflags and handling
+ * alignment and endian issues if necessary.
+ *
+ ******************************************************************************/
- buffer += 2;
- ACPI_MOVE_16_TO_32(&output_struct->data.address16.address_length,
- buffer);
+acpi_status
+acpi_rs_get_address16(union aml_resource * aml,
+ u16 aml_resource_length, struct acpi_resource * resource)
+{
+ ACPI_FUNCTION_TRACE("rs_get_address16");
- /* Resource Source Index (if present) */
+ /* Get the Resource Type, general flags, and type-specific flags */
- buffer += 2;
+ if (!acpi_rs_get_address_common(resource, aml)) {
+ return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE);
+ }
/*
- * This will leave us pointing to the Resource Source Index
- * If it is present, then save it off and calculate the
- * pointer to where the null terminated string goes:
- * Each Interrupt takes 32-bits + the 5 bytes of the
- * stream that are default.
- *
- * Note: Some resource descriptors will have an additional null, so
- * we add 1 to the length.
+ * Get the following contiguous fields from the AML descriptor:
+ * Address Granularity
+ * Address Range Minimum
+ * Address Range Maximum
+ * Address Translation Offset
+ * Address Length
*/
- if (*bytes_consumed > (16 + 1)) {
- /* Dereference the Index */
-
- output_struct->data.address16.resource_source.index =
- (u32) * buffer;
-
- /* Point to the String */
+ acpi_rs_move_data(&resource->data.address16.granularity,
+ &aml->address16.granularity, 5,
+ ACPI_MOVE_TYPE_16_TO_32);
- buffer += 1;
+ /* Get the optional resource_source (index and string) */
- /* Point the String pointer to the end of this structure */
+ resource->length =
+ ACPI_SIZEOF_RESOURCE(struct acpi_resource_address16) +
+ acpi_rs_get_resource_source(aml_resource_length,
+ sizeof(struct aml_resource_address16),
+ &resource->data.address16.
+ resource_source, aml, NULL);
- output_struct->data.address16.resource_source.string_ptr =
- (char *)((u8 *) output_struct + struct_size);
+ /* Complete the resource header */
- temp_ptr = (u8 *)
- output_struct->data.address16.resource_source.string_ptr;
-
- /* Copy the resource_source string into the buffer */
-
- index = 0;
- while (*buffer) {
- *temp_ptr = *buffer;
-
- temp_ptr++;
- buffer++;
- index++;
- }
-
- /* Add the terminating null and set the string length */
-
- *temp_ptr = 0;
- output_struct->data.address16.resource_source.string_length =
- index + 1;
-
- /*
- * In order for the struct_size to fall on a 32-bit boundary,
- * calculate the length of the string and expand the
- * struct_size to the next 32-bit boundary.
- */
- temp8 = (u8) (index + 1);
- struct_size += ACPI_ROUND_UP_to_32_bITS(temp8);
- } else {
- output_struct->data.address16.resource_source.index = 0;
- output_struct->data.address16.resource_source.string_length = 0;
- output_struct->data.address16.resource_source.string_ptr = NULL;
- }
-
- /* Set the Length parameter */
-
- output_struct->length = (u32) struct_size;
-
- /* Return the final size of the structure */
-
- *structure_size = struct_size;
+ resource->type = ACPI_RESOURCE_TYPE_ADDRESS16;
return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************
*
- * FUNCTION: acpi_rs_address16_stream
+ * FUNCTION: acpi_rs_set_address16
*
- * PARAMETERS: Resource - Pointer to the resource linked list
- * output_buffer - Pointer to the user's return buffer
- * bytes_consumed - Pointer to where the number of bytes
- * used in the output_buffer is returned
+ * PARAMETERS: Resource - Pointer to the resource descriptor
+ * Aml - Where the AML descriptor is returned
*
* RETURN: Status
*
- * DESCRIPTION: Take the linked list resource structure and fills in the
- * the appropriate bytes in a byte stream
+ * DESCRIPTION: Convert an internal resource descriptor to the corresponding
+ * external AML resource descriptor.
*
******************************************************************************/
acpi_status
-acpi_rs_address16_stream(struct acpi_resource *resource,
- u8 ** output_buffer, acpi_size * bytes_consumed)
+acpi_rs_set_address16(struct acpi_resource *resource, union aml_resource *aml)
{
- u8 *buffer = *output_buffer;
- u8 *length_field;
- acpi_size actual_bytes;
-
- ACPI_FUNCTION_TRACE("rs_address16_stream");
-
- /* Set the Descriptor Type field */
+ acpi_size descriptor_length;
- *buffer = ACPI_RDESC_TYPE_WORD_ADDRESS_SPACE;
- buffer += 1;
+ ACPI_FUNCTION_TRACE("rs_set_address16");
- /* Save a pointer to the Length field - to be filled in later */
+ /* Set the Resource Type, General Flags, and Type-Specific Flags */
- length_field = buffer;
- buffer += 2;
-
- /* Set the Resource Type (Memory, Io, bus_number) */
-
- *buffer = (u8) (resource->data.address16.resource_type & 0x03);
- buffer += 1;
-
- /* Set the general flags */
+ acpi_rs_set_address_common(aml, resource);
- *buffer = acpi_rs_encode_general_flags(&resource->data);
- buffer += 1;
-
- /* Set the type specific flags */
-
- *buffer = acpi_rs_encode_specific_flags(&resource->data);
- buffer += 1;
-
- /* Set the address space granularity */
-
- ACPI_MOVE_32_TO_16(buffer, &resource->data.address16.granularity);
- buffer += 2;
-
- /* Set the address range minimum */
-
- ACPI_MOVE_32_TO_16(buffer, &resource->data.address16.min_address_range);
- buffer += 2;
-
- /* Set the address range maximum */
-
- ACPI_MOVE_32_TO_16(buffer, &resource->data.address16.max_address_range);
- buffer += 2;
-
- /* Set the address translation offset */
-
- ACPI_MOVE_32_TO_16(buffer,
- &resource->data.address16.
- address_translation_offset);
- buffer += 2;
-
- /* Set the address length */
-
- ACPI_MOVE_32_TO_16(buffer, &resource->data.address16.address_length);
- buffer += 2;
+ /*
+ * Set the following contiguous fields in the AML descriptor:
+ * Address Granularity
+ * Address Range Minimum
+ * Address Range Maximum
+ * Address Translation Offset
+ * Address Length
+ */
+ acpi_rs_move_data(&aml->address16.granularity,
+ &resource->data.address16.granularity, 5,
+ ACPI_MOVE_TYPE_32_TO_16);
/* Resource Source Index and Resource Source are optional */
- if (resource->data.address16.resource_source.string_length) {
- *buffer = (u8) resource->data.address16.resource_source.index;
- buffer += 1;
+ descriptor_length = acpi_rs_set_resource_source(aml,
+ sizeof(struct
+ aml_resource_address16),
+ &resource->data.
+ address16.
+ resource_source);
- /* Copy the resource_source string */
+ /* Complete the AML descriptor header */
- ACPI_STRCPY((char *)buffer,
- resource->data.address16.resource_source.
- string_ptr);
-
- /*
- * Buffer needs to be set to the length of the string + one for the
- * terminating null
- */
- buffer +=
- (acpi_size) (ACPI_STRLEN
- (resource->data.address16.resource_source.
- string_ptr) + 1);
- }
-
- /* Return the number of bytes consumed in this operation */
-
- actual_bytes = ACPI_PTR_DIFF(buffer, *output_buffer);
- *bytes_consumed = actual_bytes;
-
- /*
- * Set the length field to the number of bytes consumed
- * minus the header size (3 bytes)
- */
- actual_bytes -= 3;
- ACPI_MOVE_SIZE_TO_16(length_field, &actual_bytes);
+ acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_ADDRESS16,
+ descriptor_length, aml);
return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************
*
- * FUNCTION: acpi_rs_address32_resource
+ * FUNCTION: acpi_rs_get_address32
*
- * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte
- * stream
- * bytes_consumed - Pointer to where the number of bytes
- * consumed the byte_stream_buffer is
- * returned
- * output_buffer - Pointer to the return data buffer
- * structure_size - Pointer to where the number of bytes
- * in the return data struct is returned
+ * PARAMETERS: Aml - Pointer to the AML resource descriptor
+ * aml_resource_length - Length of the resource from the AML header
+ * Resource - Where the internal resource is returned
*
* RETURN: Status
*
- * DESCRIPTION: Take the resource byte stream and fill out the appropriate
- * structure pointed to by the output_buffer. Return the
- * number of bytes consumed from the byte stream.
+ * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding
+ * internal resource descriptor, simplifying bitflags and handling
+ * alignment and endian issues if necessary.
*
******************************************************************************/
acpi_status
-acpi_rs_address32_resource(u8 * byte_stream_buffer,
- acpi_size * bytes_consumed,
- u8 ** output_buffer, acpi_size * structure_size)
+acpi_rs_get_address32(union aml_resource *aml,
+ u16 aml_resource_length, struct acpi_resource *resource)
{
- u16 temp16;
- u8 temp8;
- u8 *temp_ptr;
- u32 index;
- u8 *buffer = byte_stream_buffer;
- struct acpi_resource *output_struct = (void *)*output_buffer;
- acpi_size struct_size =
- ACPI_SIZEOF_RESOURCE(struct acpi_resource_address32);
-
- ACPI_FUNCTION_TRACE("rs_address32_resource");
-
- /* Get the Descriptor Length field */
-
- buffer += 1;
- ACPI_MOVE_16_TO_16(&temp16, buffer);
- /* Validate minimum descriptor length */
+ ACPI_FUNCTION_TRACE("rs_get_address32");
- if (temp16 < 23) {
- return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
- }
-
- *bytes_consumed = temp16 + 3;
- output_struct->type = ACPI_RSTYPE_ADDRESS32;
-
- /* Get the Resource Type (Byte3) */
-
- buffer += 2;
- temp8 = *buffer;
+ /* Get the Resource Type, general flags, and type-specific flags */
- /* Values 0-2 and 0xC0-0xFF are valid */
-
- if ((temp8 > 2) && (temp8 < 0xC0)) {
+ if (!acpi_rs_get_address_common(resource, (void *)aml)) {
return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE);
}
- output_struct->data.address32.resource_type = temp8;
-
- /* Get the General Flags (Byte4) */
-
- buffer += 1;
- acpi_rs_decode_general_flags(&output_struct->data, *buffer);
-
- /* Get the Type Specific Flags (Byte5) */
-
- buffer += 1;
- acpi_rs_decode_specific_flags(&output_struct->data, *buffer);
-
- /* Get Granularity (Bytes 6-9) */
-
- buffer += 1;
- ACPI_MOVE_32_TO_32(&output_struct->data.address32.granularity, buffer);
-
- /* Get min_address_range (Bytes 10-13) */
-
- buffer += 4;
- ACPI_MOVE_32_TO_32(&output_struct->data.address32.min_address_range,
- buffer);
-
- /* Get max_address_range (Bytes 14-17) */
-
- buffer += 4;
- ACPI_MOVE_32_TO_32(&output_struct->data.address32.max_address_range,
- buffer);
-
- /* Get address_translation_offset (Bytes 18-21) */
-
- buffer += 4;
- ACPI_MOVE_32_TO_32(&output_struct->data.address32.
- address_translation_offset, buffer);
-
- /* Get address_length (Bytes 22-25) */
-
- buffer += 4;
- ACPI_MOVE_32_TO_32(&output_struct->data.address32.address_length,
- buffer);
-
- /* Resource Source Index (if present) */
-
- buffer += 4;
-
/*
- * This will leave us pointing to the Resource Source Index
- * If it is present, then save it off and calculate the
- * pointer to where the null terminated string goes:
- *
- * Note: Some resource descriptors will have an additional null, so
- * we add 1 to the length.
+ * Get the following contiguous fields from the AML descriptor:
+ * Address Granularity
+ * Address Range Minimum
+ * Address Range Maximum
+ * Address Translation Offset
+ * Address Length
*/
- if (*bytes_consumed > (26 + 1)) {
- /* Dereference the Index */
-
- output_struct->data.address32.resource_source.index =
- (u32) * buffer;
-
- /* Point to the String */
+ acpi_rs_move_data(&resource->data.address32.granularity,
+ &aml->address32.granularity, 5,
+ ACPI_MOVE_TYPE_32_TO_32);
- buffer += 1;
+ /* Get the optional resource_source (index and string) */
- /* Point the String pointer to the end of this structure */
+ resource->length =
+ ACPI_SIZEOF_RESOURCE(struct acpi_resource_address32) +
+ acpi_rs_get_resource_source(aml_resource_length,
+ sizeof(struct aml_resource_address32),
+ &resource->data.address32.
+ resource_source, aml, NULL);
- output_struct->data.address32.resource_source.string_ptr =
- (char *)((u8 *) output_struct + struct_size);
+ /* Complete the resource header */
- temp_ptr = (u8 *)
- output_struct->data.address32.resource_source.string_ptr;
-
- /* Copy the resource_source string into the buffer */
-
- index = 0;
- while (*buffer) {
- *temp_ptr = *buffer;
-
- temp_ptr++;
- buffer++;
- index++;
- }
-
- /* Add the terminating null and set the string length */
-
- *temp_ptr = 0;
- output_struct->data.address32.resource_source.string_length =
- index + 1;
-
- /*
- * In order for the struct_size to fall on a 32-bit boundary,
- * calculate the length of the string and expand the
- * struct_size to the next 32-bit boundary.
- */
- temp8 = (u8) (index + 1);
- struct_size += ACPI_ROUND_UP_to_32_bITS(temp8);
- } else {
- output_struct->data.address32.resource_source.index = 0;
- output_struct->data.address32.resource_source.string_length = 0;
- output_struct->data.address32.resource_source.string_ptr = NULL;
- }
-
- /* Set the Length parameter */
-
- output_struct->length = (u32) struct_size;
-
- /* Return the final size of the structure */
-
- *structure_size = struct_size;
+ resource->type = ACPI_RESOURCE_TYPE_ADDRESS32;
return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************
*
- * FUNCTION: acpi_rs_address32_stream
+ * FUNCTION: acpi_rs_set_address32
*
- * PARAMETERS: Resource - Pointer to the resource linked list
- * output_buffer - Pointer to the user's return buffer
- * bytes_consumed - Pointer to where the number of bytes
- * used in the output_buffer is returned
+ * PARAMETERS: Resource - Pointer to the resource descriptor
+ * Aml - Where the AML descriptor is returned
*
* RETURN: Status
*
- * DESCRIPTION: Take the linked list resource structure and fills in the
- * the appropriate bytes in a byte stream
+ * DESCRIPTION: Convert an internal resource descriptor to the corresponding
+ * external AML resource descriptor.
*
******************************************************************************/
acpi_status
-acpi_rs_address32_stream(struct acpi_resource *resource,
- u8 ** output_buffer, acpi_size * bytes_consumed)
+acpi_rs_set_address32(struct acpi_resource *resource, union aml_resource *aml)
{
- u8 *buffer;
- u16 *length_field;
-
- ACPI_FUNCTION_TRACE("rs_address32_stream");
-
- buffer = *output_buffer;
+ acpi_size descriptor_length;
- /* Set the Descriptor Type field */
+ ACPI_FUNCTION_TRACE("rs_set_address32");
- *buffer = ACPI_RDESC_TYPE_DWORD_ADDRESS_SPACE;
- buffer += 1;
+ /* Set the Resource Type, General Flags, and Type-Specific Flags */
- /* Save a pointer to the Length field - to be filled in later */
+ acpi_rs_set_address_common(aml, resource);
- length_field = ACPI_CAST_PTR(u16, buffer);
- buffer += 2;
-
- /* Set the Resource Type (Memory, Io, bus_number) */
-
- *buffer = (u8) (resource->data.address32.resource_type & 0x03);
- buffer += 1;
-
- /* Set the general flags */
-
- *buffer = acpi_rs_encode_general_flags(&resource->data);
- buffer += 1;
-
- /* Set the type specific flags */
-
- *buffer = acpi_rs_encode_specific_flags(&resource->data);
- buffer += 1;
-
- /* Set the address space granularity */
-
- ACPI_MOVE_32_TO_32(buffer, &resource->data.address32.granularity);
- buffer += 4;
-
- /* Set the address range minimum */
-
- ACPI_MOVE_32_TO_32(buffer, &resource->data.address32.min_address_range);
- buffer += 4;
-
- /* Set the address range maximum */
-
- ACPI_MOVE_32_TO_32(buffer, &resource->data.address32.max_address_range);
- buffer += 4;
-
- /* Set the address translation offset */
-
- ACPI_MOVE_32_TO_32(buffer,
- &resource->data.address32.
- address_translation_offset);
- buffer += 4;
-
- /* Set the address length */
-
- ACPI_MOVE_32_TO_32(buffer, &resource->data.address32.address_length);
- buffer += 4;
+ /*
+ * Set the following contiguous fields in the AML descriptor:
+ * Address Granularity
+ * Address Range Minimum
+ * Address Range Maximum
+ * Address Translation Offset
+ * Address Length
+ */
+ acpi_rs_move_data(&aml->address32.granularity,
+ &resource->data.address32.granularity, 5,
+ ACPI_MOVE_TYPE_32_TO_32);
/* Resource Source Index and Resource Source are optional */
- if (resource->data.address32.resource_source.string_length) {
- *buffer = (u8) resource->data.address32.resource_source.index;
- buffer += 1;
-
- /* Copy the resource_source string */
+ descriptor_length = acpi_rs_set_resource_source(aml,
+ sizeof(struct
+ aml_resource_address32),
+ &resource->data.
+ address32.
+ resource_source);
- ACPI_STRCPY((char *)buffer,
- resource->data.address32.resource_source.
- string_ptr);
+ /* Complete the AML descriptor header */
- /*
- * Buffer needs to be set to the length of the string + one for the
- * terminating null
- */
- buffer +=
- (acpi_size) (ACPI_STRLEN
- (resource->data.address32.resource_source.
- string_ptr) + 1);
- }
-
- /* Return the number of bytes consumed in this operation */
-
- *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer);
-
- /*
- * Set the length field to the number of bytes consumed
- * minus the header size (3 bytes)
- */
- *length_field = (u16) (*bytes_consumed - 3);
+ acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_ADDRESS32,
+ descriptor_length, aml);
return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************
*
- * FUNCTION: acpi_rs_address64_resource
+ * FUNCTION: acpi_rs_get_address64
*
- * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte
- * stream
- * bytes_consumed - Pointer to where the number of bytes
- * consumed the byte_stream_buffer is
- * returned
- * output_buffer - Pointer to the return data buffer
- * structure_size - Pointer to where the number of bytes
- * in the return data struct is returned
+ * PARAMETERS: Aml - Pointer to the AML resource descriptor
+ * aml_resource_length - Length of the resource from the AML header
+ * Resource - Where the internal resource is returned
*
* RETURN: Status
*
- * DESCRIPTION: Take the resource byte stream and fill out the appropriate
- * structure pointed to by the output_buffer. Return the
- * number of bytes consumed from the byte stream.
+ * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding
+ * internal resource descriptor, simplifying bitflags and handling
+ * alignment and endian issues if necessary.
*
******************************************************************************/
acpi_status
-acpi_rs_address64_resource(u8 * byte_stream_buffer,
- acpi_size * bytes_consumed,
- u8 ** output_buffer, acpi_size * structure_size)
+acpi_rs_get_address64(union aml_resource *aml,
+ u16 aml_resource_length, struct acpi_resource *resource)
{
- u16 temp16;
- u8 temp8;
- u8 resource_type;
- u8 *temp_ptr;
- u32 index;
- u8 *buffer = byte_stream_buffer;
- struct acpi_resource *output_struct = (void *)*output_buffer;
- acpi_size struct_size =
- ACPI_SIZEOF_RESOURCE(struct acpi_resource_address64);
-
- ACPI_FUNCTION_TRACE("rs_address64_resource");
-
- /* Get the Descriptor Type */
-
- resource_type = *buffer;
-
- /* Get the Descriptor Length field */
-
- buffer += 1;
- ACPI_MOVE_16_TO_16(&temp16, buffer);
-
- /* Validate minimum descriptor length */
-
- if (temp16 < 43) {
- return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
- }
-
- *bytes_consumed = temp16 + 3;
- output_struct->type = ACPI_RSTYPE_ADDRESS64;
-
- /* Get the Resource Type (Byte3) */
+ ACPI_FUNCTION_TRACE("rs_get_address64");
- buffer += 2;
- temp8 = *buffer;
+ /* Get the Resource Type, general Flags, and type-specific Flags */
- /* Values 0-2 and 0xC0-0xFF are valid */
-
- if ((temp8 > 2) && (temp8 < 0xC0)) {
+ if (!acpi_rs_get_address_common(resource, aml)) {
return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE);
}
- output_struct->data.address64.resource_type = temp8;
-
- /* Get the General Flags (Byte4) */
-
- buffer += 1;
- acpi_rs_decode_general_flags(&output_struct->data, *buffer);
-
- /* Get the Type Specific Flags (Byte5) */
-
- buffer += 1;
- acpi_rs_decode_specific_flags(&output_struct->data, *buffer);
-
- if (resource_type == ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE) {
- /* Move past revision_id and Reserved byte */
-
- buffer += 2;
- }
-
- /* Get Granularity (Bytes 6-13) or (Bytes 8-15) */
-
- buffer += 1;
- ACPI_MOVE_64_TO_64(&output_struct->data.address64.granularity, buffer);
-
- /* Get min_address_range (Bytes 14-21) or (Bytes 16-23) */
-
- buffer += 8;
- ACPI_MOVE_64_TO_64(&output_struct->data.address64.min_address_range,
- buffer);
-
- /* Get max_address_range (Bytes 22-29) or (Bytes 24-31) */
-
- buffer += 8;
- ACPI_MOVE_64_TO_64(&output_struct->data.address64.max_address_range,
- buffer);
-
- /* Get address_translation_offset (Bytes 30-37) or (Bytes 32-39) */
-
- buffer += 8;
- ACPI_MOVE_64_TO_64(&output_struct->data.address64.
- address_translation_offset, buffer);
+ /*
+ * Get the following contiguous fields from the AML descriptor:
+ * Address Granularity
+ * Address Range Minimum
+ * Address Range Maximum
+ * Address Translation Offset
+ * Address Length
+ */
+ acpi_rs_move_data(&resource->data.address64.granularity,
+ &aml->address64.granularity, 5,
+ ACPI_MOVE_TYPE_64_TO_64);
- /* Get address_length (Bytes 38-45) or (Bytes 40-47) */
+ /* Get the optional resource_source (index and string) */
- buffer += 8;
- ACPI_MOVE_64_TO_64(&output_struct->data.address64.address_length,
- buffer);
+ resource->length =
+ ACPI_SIZEOF_RESOURCE(struct acpi_resource_address64) +
+ acpi_rs_get_resource_source(aml_resource_length,
+ sizeof(struct aml_resource_address64),
+ &resource->data.address64.
+ resource_source, aml, NULL);
- output_struct->data.address64.resource_source.index = 0;
- output_struct->data.address64.resource_source.string_length = 0;
- output_struct->data.address64.resource_source.string_ptr = NULL;
+ /* Complete the resource header */
- if (resource_type == ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE) {
- /* Get type_specific_attribute (Bytes 48-55) */
+ resource->type = ACPI_RESOURCE_TYPE_ADDRESS64;
+ return_ACPI_STATUS(AE_OK);
+}
- buffer += 8;
- ACPI_MOVE_64_TO_64(&output_struct->data.address64.
- type_specific_attributes, buffer);
- } else {
- output_struct->data.address64.type_specific_attributes = 0;
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_set_address64
+ *
+ * PARAMETERS: Resource - Pointer to the resource descriptor
+ * Aml - Where the AML descriptor is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Convert an internal resource descriptor to the corresponding
+ * external AML resource descriptor.
+ *
+ ******************************************************************************/
- /* Resource Source Index (if present) */
+acpi_status
+acpi_rs_set_address64(struct acpi_resource *resource, union aml_resource *aml)
+{
+ acpi_size descriptor_length;
- buffer += 8;
+ ACPI_FUNCTION_TRACE("rs_set_address64");
- /*
- * This will leave us pointing to the Resource Source Index
- * If it is present, then save it off and calculate the
- * pointer to where the null terminated string goes:
- * Each Interrupt takes 32-bits + the 5 bytes of the
- * stream that are default.
- *
- * Note: Some resource descriptors will have an additional null, so
- * we add 1 to the length.
- */
- if (*bytes_consumed > (46 + 1)) {
- /* Dereference the Index */
+ /* Set the Resource Type, General Flags, and Type-Specific Flags */
- output_struct->data.address64.resource_source.index =
- (u32) * buffer;
+ acpi_rs_set_address_common(aml, resource);
- /* Point to the String */
+ /*
+ * Set the following contiguous fields in the AML descriptor:
+ * Address Granularity
+ * Address Range Minimum
+ * Address Range Maximum
+ * Address Translation Offset
+ * Address Length
+ */
+ acpi_rs_move_data(&aml->address64.granularity,
+ &resource->data.address64.granularity, 5,
+ ACPI_MOVE_TYPE_64_TO_64);
- buffer += 1;
+ /* Resource Source Index and Resource Source are optional */
- /* Point the String pointer to the end of this structure */
+ descriptor_length = acpi_rs_set_resource_source(aml,
+ sizeof(struct
+ aml_resource_address64),
+ &resource->data.
+ address64.
+ resource_source);
- output_struct->data.address64.resource_source.
- string_ptr =
- (char *)((u8 *) output_struct + struct_size);
+ /* Complete the AML descriptor header */
- temp_ptr = (u8 *)
- output_struct->data.address64.resource_source.
- string_ptr;
+ acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_ADDRESS64,
+ descriptor_length, aml);
+ return_ACPI_STATUS(AE_OK);
+}
- /* Copy the resource_source string into the buffer */
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_get_ext_address64
+ *
+ * PARAMETERS: Aml - Pointer to the AML resource descriptor
+ * aml_resource_length - Length of the resource from the AML header
+ * Resource - Where the internal resource is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding
+ * internal resource descriptor, simplifying bitflags and handling
+ * alignment and endian issues if necessary.
+ *
+ ******************************************************************************/
- index = 0;
- while (*buffer) {
- *temp_ptr = *buffer;
+acpi_status
+acpi_rs_get_ext_address64(union aml_resource *aml,
+ u16 aml_resource_length,
+ struct acpi_resource *resource)
+{
- temp_ptr++;
- buffer++;
- index++;
- }
+ ACPI_FUNCTION_TRACE("rs_get_ext_address64");
- /*
- * Add the terminating null and set the string length
- */
- *temp_ptr = 0;
- output_struct->data.address64.resource_source.
- string_length = index + 1;
+ /* Get the Resource Type, general flags, and type-specific flags */
- /*
- * In order for the struct_size to fall on a 32-bit boundary,
- * calculate the length of the string and expand the
- * struct_size to the next 32-bit boundary.
- */
- temp8 = (u8) (index + 1);
- struct_size += ACPI_ROUND_UP_to_32_bITS(temp8);
- }
+ if (!acpi_rs_get_address_common(resource, aml)) {
+ return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE);
}
- /* Set the Length parameter */
+ /*
+ * Get and validate the Revision ID
+ * Note: Only one revision ID is currently supported
+ */
+ resource->data.ext_address64.revision_iD =
+ aml->ext_address64.revision_iD;
+ if (aml->ext_address64.revision_iD !=
+ AML_RESOURCE_EXTENDED_ADDRESS_REVISION) {
+ return_ACPI_STATUS(AE_SUPPORT);
+ }
- output_struct->length = (u32) struct_size;
+ /*
+ * Get the following contiguous fields from the AML descriptor:
+ * Address Granularity
+ * Address Range Minimum
+ * Address Range Maximum
+ * Address Translation Offset
+ * Address Length
+ * Type-Specific Attribute
+ */
+ acpi_rs_move_data(&resource->data.ext_address64.granularity,
+ &aml->ext_address64.granularity, 6,
+ ACPI_MOVE_TYPE_64_TO_64);
- /* Return the final size of the structure */
+ /* Complete the resource header */
- *structure_size = struct_size;
+ resource->type = ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64;
+ resource->length =
+ ACPI_SIZEOF_RESOURCE(struct acpi_resource_extended_address64);
return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************
*
- * FUNCTION: acpi_rs_address64_stream
+ * FUNCTION: acpi_rs_set_ext_address64
*
- * PARAMETERS: Resource - Pointer to the resource linked list
- * output_buffer - Pointer to the user's return buffer
- * bytes_consumed - Pointer to where the number of bytes
- * used in the output_buffer is returned
+ * PARAMETERS: Resource - Pointer to the resource descriptor
+ * Aml - Where the AML descriptor is returned
*
* RETURN: Status
*
- * DESCRIPTION: Take the linked list resource structure and fills in the
- * the appropriate bytes in a byte stream
+ * DESCRIPTION: Convert an internal resource descriptor to the corresponding
+ * external AML resource descriptor.
*
******************************************************************************/
acpi_status
-acpi_rs_address64_stream(struct acpi_resource *resource,
- u8 ** output_buffer, acpi_size * bytes_consumed)
+acpi_rs_set_ext_address64(struct acpi_resource *resource,
+ union aml_resource *aml)
{
- u8 *buffer;
- u16 *length_field;
-
- ACPI_FUNCTION_TRACE("rs_address64_stream");
-
- buffer = *output_buffer;
-
- /* Set the Descriptor Type field */
-
- *buffer = ACPI_RDESC_TYPE_QWORD_ADDRESS_SPACE;
- buffer += 1;
-
- /* Save a pointer to the Length field - to be filled in later */
-
- length_field = ACPI_CAST_PTR(u16, buffer);
- buffer += 2;
-
- /* Set the Resource Type (Memory, Io, bus_number) */
-
- *buffer = (u8) (resource->data.address64.resource_type & 0x03);
- buffer += 1;
-
- /* Set the general flags */
-
- *buffer = acpi_rs_encode_general_flags(&resource->data);
- buffer += 1;
-
- /* Set the type specific flags */
-
- *buffer = acpi_rs_encode_specific_flags(&resource->data);
- buffer += 1;
-
- /* Set the address space granularity */
+ ACPI_FUNCTION_TRACE("rs_set_ext_address64");
- ACPI_MOVE_64_TO_64(buffer, &resource->data.address64.granularity);
- buffer += 8;
+ /* Set the Resource Type, General Flags, and Type-Specific Flags */
- /* Set the address range minimum */
+ acpi_rs_set_address_common(aml, resource);
- ACPI_MOVE_64_TO_64(buffer, &resource->data.address64.min_address_range);
- buffer += 8;
+ /* Only one Revision ID is currently supported */
- /* Set the address range maximum */
-
- ACPI_MOVE_64_TO_64(buffer, &resource->data.address64.max_address_range);
- buffer += 8;
-
- /* Set the address translation offset */
-
- ACPI_MOVE_64_TO_64(buffer,
- &resource->data.address64.
- address_translation_offset);
- buffer += 8;
-
- /* Set the address length */
-
- ACPI_MOVE_64_TO_64(buffer, &resource->data.address64.address_length);
- buffer += 8;
-
- /* Resource Source Index and Resource Source are optional */
-
- if (resource->data.address64.resource_source.string_length) {
- *buffer = (u8) resource->data.address64.resource_source.index;
- buffer += 1;
-
- /* Copy the resource_source string */
-
- ACPI_STRCPY((char *)buffer,
- resource->data.address64.resource_source.
- string_ptr);
-
- /*
- * Buffer needs to be set to the length of the string + one for the
- * terminating null
- */
- buffer +=
- (acpi_size) (ACPI_STRLEN
- (resource->data.address64.resource_source.
- string_ptr) + 1);
- }
-
- /* Return the number of bytes consumed in this operation */
-
- *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer);
+ aml->ext_address64.revision_iD = AML_RESOURCE_EXTENDED_ADDRESS_REVISION;
+ aml->ext_address64.reserved = 0;
/*
- * Set the length field to the number of bytes consumed
- * minus the header size (3 bytes)
+ * Set the following contiguous fields in the AML descriptor:
+ * Address Granularity
+ * Address Range Minimum
+ * Address Range Maximum
+ * Address Translation Offset
+ * Address Length
+ * Type-Specific Attribute
*/
- *length_field = (u16) (*bytes_consumed - 3);
+ acpi_rs_move_data(&aml->ext_address64.granularity,
+ &resource->data.address64.granularity, 6,
+ ACPI_MOVE_TYPE_64_TO_64);
+
+ /* Complete the AML descriptor header */
+
+ acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64,
+ sizeof(struct
+ aml_resource_extended_address64),
+ aml);
return_ACPI_STATUS(AE_OK);
}
projects / linux-2.6-omap-h63xx.git / blobdiff