diff options
author | Len Brown <len.brown@intel.com> | 2005-07-12 17:21:56 -0400 |
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committer | Len Brown <len.brown@intel.com> | 2005-07-12 17:21:56 -0400 |
commit | 5028770a42e7bc4d15791a44c28f0ad539323807 (patch) | |
tree | 74800e35129775413c13ce7caf036ca19e3ce56c /drivers/acpi/resources/rslist.c | |
parent | 9f02d6b7b43d46a74dd385f06090104ecd0fb807 (diff) | |
parent | d8683a0cb5d09cb7f19feefa708424a84577e68f (diff) |
[ACPI] merge acpi-2.6.12 branch into latest Linux 2.6.13-rc...
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/resources/rslist.c')
-rw-r--r-- | drivers/acpi/resources/rslist.c | 68 |
1 files changed, 28 insertions, 40 deletions
diff --git a/drivers/acpi/resources/rslist.c b/drivers/acpi/resources/rslist.c index e49c1e030f9..db7bcb4e60e 100644 --- a/drivers/acpi/resources/rslist.c +++ b/drivers/acpi/resources/rslist.c @@ -55,7 +55,7 @@ * * PARAMETERS: resource_start_byte - Byte 0 of a resource descriptor * - * RETURN: The Resource Type (Name) with no extraneous bits + * RETURN: The Resource Type with no extraneous bits * * DESCRIPTION: Extract the Resource Type/Name from the first byte of * a resource descriptor. @@ -70,28 +70,25 @@ acpi_rs_get_resource_type ( ACPI_FUNCTION_ENTRY (); - /* - * Determine if this is a small or large resource - */ + /* Determine if this is a small or large resource */ + switch (resource_start_byte & ACPI_RDESC_TYPE_MASK) { case ACPI_RDESC_TYPE_SMALL: - /* - * Small Resource Type -- Only bits 6:3 are valid - */ + /* Small Resource Type -- Only bits 6:3 are valid */ + return ((u8) (resource_start_byte & ACPI_RDESC_SMALL_MASK)); case ACPI_RDESC_TYPE_LARGE: - /* - * Large Resource Type -- All bits are valid - */ + /* Large Resource Type -- All bits are valid */ + return (resource_start_byte); default: - /* No other types of resource descriptor */ + /* Invalid type */ break; } @@ -135,9 +132,8 @@ acpi_rs_byte_stream_to_list ( while (bytes_parsed < byte_stream_buffer_length && !end_tag_processed) { - /* - * The next byte in the stream is the resource type - */ + /* The next byte in the stream is the resource type */ + resource_type = acpi_rs_get_resource_type (*byte_stream_buffer); switch (resource_type) { @@ -299,28 +295,23 @@ acpi_rs_byte_stream_to_list ( return_ACPI_STATUS (status); } - /* - * Update the return value and counter - */ + /* Update the return value and counter */ + 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; - /* - * Set the Buffer to the next structure - */ + /* Set the Buffer to the next structure */ + resource = ACPI_CAST_PTR (struct acpi_resource, buffer); resource->length = (u32) ACPI_ALIGN_RESOURCE_SIZE (resource->length); buffer += ACPI_ALIGN_RESOURCE_SIZE (structure_size); + } - } /* end while */ + /* Check the reason for exiting the while loop */ - /* - * Check the reason for exiting the while loop - */ if (!end_tag_processed) { return_ACPI_STATUS (AE_AML_NO_RESOURCE_END_TAG); } @@ -424,9 +415,8 @@ acpi_rs_list_to_byte_stream ( */ status = acpi_rs_end_tag_stream (linked_list, &buffer, &bytes_consumed); - /* - * An End Tag indicates the end of the Resource Template - */ + /* An End Tag indicates the end of the Resource Template */ + done = TRUE; break; @@ -488,27 +478,25 @@ acpi_rs_list_to_byte_stream ( default: /* * If we get here, everything is out of sync, - * so exit with an error + * so exit with an error */ - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid descriptor type (%X) in resource list\n", + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Invalid descriptor type (%X) in resource list\n", linked_list->id)); status = AE_BAD_DATA; break; - - } /* switch (linked_list->Id) */ + } if (ACPI_FAILURE (status)) { return_ACPI_STATUS (status); } - /* - * Set the Buffer to point to the open byte - */ + /* Set the Buffer to point to the open byte */ + buffer += bytes_consumed; - /* - * Point to the next object - */ + /* Point to the next object */ + linked_list = ACPI_PTR_ADD (struct acpi_resource, linked_list, linked_list->length); } |