patch-2.4.0-test3 linux/drivers/acpi/resources/rsmisc.c
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- Lines: 613
- Date:
Wed Jul 5 11:23:13 2000
- Orig file:
v2.4.0-test2/linux/drivers/acpi/resources/rsmisc.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.4.0-test2/linux/drivers/acpi/resources/rsmisc.c linux/drivers/acpi/resources/rsmisc.c
@@ -0,0 +1,612 @@
+/******************************************************************************
+ *
+ * Module Name: rsmisc - Acpi_rs_end_tag_resource
+ * Acpi_rs_end_tag_stream
+ * Acpi_rs_vendor_resource
+ * Acpi_rs_vendor_stream
+ * Acpi_rs_start_dependent_functions_resource
+ * Acpi_rs_end_dependent_functions_resource
+ * Acpi_rs_start_dependent_functions_stream
+ * Acpi_rs_end_dependent_functions_stream
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 R. Byron Moore
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+#include "acpi.h"
+
+#define _COMPONENT RESOURCE_MANAGER
+ MODULE_NAME ("rsmisc");
+
+
+/***************************************************************************
+ * FUNCTION: Acpi_rs_end_tag_resource
+ *
+ * PARAMETERS:
+ * Byte_stream_buffer - Pointer to the resource input byte
+ * stream
+ * Bytes_consumed - u32 pointer that is filled with
+ * the number of bytes consumed from
+ * the Byte_stream_buffer
+ * Output_buffer - Pointer to the user's return buffer
+ * Structure_size - u32 pointer that is filled with
+ * the number of bytes in the filled
+ * in structure
+ *
+ * RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
+ *
+ * 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.
+ *
+ ***************************************************************************/
+
+ACPI_STATUS
+acpi_rs_end_tag_resource (
+ u8 *byte_stream_buffer,
+ u32 *bytes_consumed,
+ u8 **output_buffer,
+ u32 *structure_size)
+{
+ RESOURCE *output_struct = (RESOURCE *) * output_buffer;
+ u32 struct_size = RESOURCE_LENGTH;
+
+
+ /*
+ * The number of bytes consumed is static
+ */
+ *bytes_consumed = 2;
+
+ /*
+ * Fill out the structure
+ */
+ output_struct->id = end_tag;
+
+ /*
+ * Set the Length parameter
+ */
+ output_struct->length = 0;
+
+ /*
+ * Return the final size of the structure
+ */
+ *structure_size = struct_size;
+
+ return (AE_OK);
+}
+
+
+/***************************************************************************
+ * FUNCTION: Acpi_rs_end_tag_stream
+ *
+ * PARAMETERS:
+ * Linked_list - Pointer to the resource linked list
+ * Output_buffer - Pointer to the user's return buffer
+ * Bytes_consumed - u32 pointer that is filled with
+ * the number of bytes of the
+ * Output_buffer used
+ *
+ * RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
+ *
+ * DESCRIPTION: Take the linked list resource structure and fills in the
+ * the appropriate bytes in a byte stream
+ *
+ ***************************************************************************/
+
+ACPI_STATUS
+acpi_rs_end_tag_stream (
+ RESOURCE *linked_list,
+ u8 **output_buffer,
+ u32 *bytes_consumed)
+{
+ u8 *buffer = *output_buffer;
+ u8 temp8 = 0;
+
+
+ /*
+ * The descriptor field is static
+ */
+ *buffer = 0x79;
+
+ buffer += 1;
+
+ /*
+ * Set the Checksum - zero means that the resource data is treated as if
+ * the checksum operation succeeded (ACPI Spec 1.0b Section 6.4.2.8)
+ */
+ temp8 = 0;
+
+ *buffer = temp8;
+
+ buffer += 1;
+
+ /*
+ * Return the number of bytes consumed in this operation
+ */
+ *bytes_consumed = (u32) ((NATIVE_UINT) buffer -
+ (NATIVE_UINT) *output_buffer);
+
+ return (AE_OK);
+}
+
+/***************************************************************************
+ * FUNCTION: Acpi_rs_vendor_resource
+ *
+ * PARAMETERS:
+ * Byte_stream_buffer - Pointer to the resource input byte
+ * stream
+ * Bytes_consumed - u32 pointer that is filled with
+ * the number of bytes consumed from
+ * the Byte_stream_buffer
+ * Output_buffer - Pointer to the user's return buffer
+ * Structure_size - u32 pointer that is filled with
+ * the number of bytes in the filled
+ * in structure
+ *
+ * RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
+ *
+ * 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.
+ *
+ ***************************************************************************/
+
+ACPI_STATUS
+acpi_rs_vendor_resource (
+ u8 *byte_stream_buffer,
+ u32 *bytes_consumed,
+ u8 **output_buffer,
+ u32 *structure_size)
+{
+ u8 *buffer = byte_stream_buffer;
+ RESOURCE *output_struct = (RESOURCE *) * output_buffer;
+ u16 temp16 = 0;
+ u8 temp8 = 0;
+ u8 index;
+ u32 struct_size = sizeof (VENDOR_RESOURCE) +
+ RESOURCE_LENGTH_NO_DATA;
+
+
+ /*
+ * Dereference the Descriptor to find if this is a large or small item.
+ */
+ temp8 = *buffer;
+
+ if (temp8 & 0x80) {
+ /*
+ * Large Item
+ */
+ /* Point to the length field */
+
+ buffer += 1;
+
+ /* Dereference */
+
+ temp16 = *(u16 *)buffer;
+
+ /* Calculate bytes consumed */
+
+ *bytes_consumed = temp16 + 3;
+
+ /* Point to the first vendor byte */
+
+ buffer += 2;
+ }
+
+ else {
+ /*
+ * Small Item
+ */
+
+ /* Dereference the size */
+
+ temp16 = (u8)(*buffer & 0x07);
+
+ /* Calculate bytes consumed */
+
+ *bytes_consumed = temp16 + 1;
+
+ /* Point to the first vendor byte */
+
+ buffer += 1;
+ }
+
+ output_struct->id = vendor_specific;
+
+ output_struct->data.vendor_specific.length = temp16;
+
+ for (index = 0; index < temp16; index++) {
+ output_struct->data.vendor_specific.reserved[index] = *buffer;
+ buffer += 1;
+ }
+
+ /*
+ * In order for the Struct_size to fall on a 32-bit boundry,
+ * calculate the length of the vendor string and expand the
+ * Struct_size to the next 32-bit boundry.
+ */
+ struct_size += ROUND_UP_TO_32_bITS (temp16);
+
+ /*
+ * Set the Length parameter
+ */
+ output_struct->length = struct_size;
+
+ /*
+ * Return the final size of the structure
+ */
+ *structure_size = struct_size;
+
+ return (AE_OK);
+}
+
+
+/***************************************************************************
+ * FUNCTION: Acpi_rs_vendor_stream
+ *
+ * PARAMETERS:
+ * Linked_list - Pointer to the resource linked list
+ * Output_buffer - Pointer to the user's return buffer
+ * Bytes_consumed - u32 pointer that is filled with
+ * the number of bytes of the
+ * Output_buffer used
+ *
+ * RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
+ *
+ * DESCRIPTION: Take the linked list resource structure and fills in the
+ * the appropriate bytes in a byte stream
+ *
+ ***************************************************************************/
+
+ACPI_STATUS
+acpi_rs_vendor_stream (
+ RESOURCE *linked_list,
+ u8 **output_buffer,
+ u32 *bytes_consumed)
+{
+ u8 *buffer = *output_buffer;
+ u16 temp16 = 0;
+ u8 temp8 = 0;
+ u8 index;
+
+
+ /*
+ * Dereference the length to find if this is a large or small item.
+ */
+
+ if(linked_list->data.vendor_specific.length > 7) {
+ /*
+ * Large Item
+ */
+ /*
+ * Set the descriptor field and length bytes
+ */
+ *buffer = 0x84;
+
+ buffer += 1;
+
+ temp16 = (u16) linked_list->data.vendor_specific.length;
+
+ *(u16 *)buffer = temp16;
+
+ buffer += 2;
+ }
+
+ else {
+ /*
+ * Small Item
+ */
+
+ /*
+ * Set the descriptor field
+ */
+ temp8 = 0x70;
+
+ temp8 |= linked_list->data.vendor_specific.length;
+
+ *buffer = temp8;
+
+ buffer += 1;
+ }
+
+ /*
+ * Loop through all of the Vendor Specific fields
+ */
+ for (index = 0; index < linked_list->data.vendor_specific.length; index++) {
+ temp8 = linked_list->data.vendor_specific.reserved[index];
+ *buffer = temp8;
+ buffer += 1;
+ }
+
+ /*
+ * Return the number of bytes consumed in this operation
+ */
+ *bytes_consumed = (u32) ((NATIVE_UINT) buffer -
+ (NATIVE_UINT) *output_buffer);
+
+ return (AE_OK);
+}
+
+/***************************************************************************
+ * FUNCTION: Acpi_rs_start_dependent_functions_resource
+ *
+ * PARAMETERS:
+ * Byte_stream_buffer - Pointer to the resource input byte
+ * stream
+ * Bytes_consumed - u32 pointer that is filled with
+ * the number of bytes consumed from
+ * the Byte_stream_buffer
+ * Output_buffer - Pointer to the user's return buffer
+ * Structure_size - u32 pointer that is filled with
+ * the number of bytes in the filled
+ * in structure
+ *
+ * RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
+ *
+ * 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.
+ *
+ ***************************************************************************/
+
+ACPI_STATUS
+acpi_rs_start_dependent_functions_resource (
+ u8 *byte_stream_buffer,
+ u32 *bytes_consumed,
+ u8 **output_buffer,
+ u32 *structure_size)
+{
+ u8 *buffer = byte_stream_buffer;
+ RESOURCE *output_struct = (RESOURCE *) * output_buffer;
+ u8 temp8 = 0;
+ u32 struct_size =
+ sizeof(START_DEPENDENT_FUNCTIONS_RESOURCE) +
+ RESOURCE_LENGTH_NO_DATA;
+
+
+ /*
+ * The number of bytes consumed are contained in the descriptor (Bits:0-1)
+ */
+ temp8 = *buffer;
+
+ *bytes_consumed = (temp8 & 0x01) + 1;
+
+ output_struct->id = start_dependent_functions;
+
+ /*
+ * Point to Byte 1 if it is used
+ */
+ if (2 == *bytes_consumed) {
+ buffer += 1;
+ temp8 = *buffer;
+
+ /*
+ * Check Compatibility priority
+ */
+ output_struct->data.start_dependent_functions.compatibility_priority =
+ temp8 & 0x03;
+
+ if (3 == output_struct->data.start_dependent_functions.compatibility_priority) {
+ return (AE_ERROR);
+ }
+
+ /*
+ * Check Performance/Robustness preference
+ */
+ output_struct->data.start_dependent_functions.performance_robustness =
+ (temp8 >> 2) & 0x03;
+
+ if (3 == output_struct->data.start_dependent_functions.performance_robustness) {
+ return (AE_ERROR);
+ }
+ }
+
+ else {
+ output_struct->data.start_dependent_functions.compatibility_priority =
+ ACCEPTABLE_CONFIGURATION;
+
+ output_struct->data.start_dependent_functions.performance_robustness =
+ ACCEPTABLE_CONFIGURATION;
+ }
+
+ /*
+ * Set the Length parameter
+ */
+ output_struct->length = struct_size;
+
+ /*
+ * Return the final size of the structure
+ */
+ *structure_size = struct_size;
+
+ return (AE_OK);
+}
+
+
+/***************************************************************************
+ * FUNCTION: Acpi_rs_end_dependent_functions_resource
+ *
+ * PARAMETERS:
+ * Byte_stream_buffer - Pointer to the resource input byte
+ * stream
+ * Bytes_consumed - u32 pointer that is filled with
+ * the number of bytes consumed from
+ * the Byte_stream_buffer
+ * Output_buffer - Pointer to the user's return buffer
+ * Structure_size - u32 pointer that is filled with
+ * the number of bytes in the filled
+ * in structure
+ *
+ * RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
+ *
+ * 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.
+ *
+ ***************************************************************************/
+
+ACPI_STATUS
+acpi_rs_end_dependent_functions_resource (
+ u8 *byte_stream_buffer,
+ u32 *bytes_consumed,
+ u8 **output_buffer,
+ u32 *structure_size)
+{
+ RESOURCE *output_struct = (RESOURCE *) * output_buffer;
+ u32 struct_size = RESOURCE_LENGTH;
+
+
+ /*
+ * The number of bytes consumed is static
+ */
+ *bytes_consumed = 1;
+
+ /*
+ * Fill out the structure
+ */
+ output_struct->id = end_dependent_functions;
+
+ /*
+ * Set the Length parameter
+ */
+ output_struct->length = struct_size;
+
+ /*
+ * Return the final size of the structure
+ */
+ *structure_size = struct_size;
+
+ return (AE_OK);
+}
+
+
+/***************************************************************************
+ * FUNCTION: Acpi_rs_start_dependent_functions_stream
+ *
+ * PARAMETERS:
+ * Linked_list - Pointer to the resource linked list
+ * Output_buffer - Pointer to the user's return buffer
+ * Bytes_consumed - u32 pointer that is filled with
+ * the number of bytes of the
+ * Output_buffer used
+ *
+ * RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
+ *
+ * DESCRIPTION: Take the linked list resource structure and fills in the
+ * the appropriate bytes in a byte stream
+ *
+ ***************************************************************************/
+ACPI_STATUS
+acpi_rs_start_dependent_functions_stream (
+ RESOURCE *linked_list,
+ u8 **output_buffer,
+ u32 *bytes_consumed)
+{
+ u8 *buffer = *output_buffer;
+ u8 temp8 = 0;
+
+
+ /*
+ * The descriptor field is set based upon whether a byte is needed
+ * to contain Priority data.
+ */
+ if (ACCEPTABLE_CONFIGURATION ==
+ linked_list->data.start_dependent_functions.compatibility_priority &&
+ ACCEPTABLE_CONFIGURATION ==
+ linked_list->data.start_dependent_functions.performance_robustness)
+ {
+ *buffer = 0x30;
+ }
+ else {
+ *buffer = 0x31;
+
+ buffer += 1;
+
+ /*
+ * Set the Priority Byte Definition
+ */
+ temp8 = 0;
+
+ temp8 = (u8)
+ ((linked_list->data.start_dependent_functions.performance_robustness &
+ 0x03) << 2);
+
+ temp8 |=
+ (linked_list->data.start_dependent_functions.compatibility_priority &
+ 0x03);
+
+ *buffer = temp8;
+ }
+
+ buffer += 1;
+
+ /*
+ * Return the number of bytes consumed in this operation
+ */
+ *bytes_consumed = (u32) ((NATIVE_UINT) buffer -
+ (NATIVE_UINT) *output_buffer);
+
+ return (AE_OK);
+}
+
+
+/***************************************************************************
+ * FUNCTION: Acpi_rs_end_dependent_functions_stream
+ *
+ * PARAMETERS:
+ * Linked_list - Pointer to the resource linked list
+ * Output_buffer - Pointer to the user's return buffer
+ * Bytes_consumed - u32 pointer that is filled with
+ * the number of bytes of the
+ * Output_buffer used
+ *
+ * RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
+ *
+ * DESCRIPTION: Take the linked list resource structure and fills in the
+ * the appropriate bytes in a byte stream
+ *
+ ***************************************************************************/
+
+ACPI_STATUS
+acpi_rs_end_dependent_functions_stream (
+ RESOURCE *linked_list,
+ u8 **output_buffer,
+ u32 *bytes_consumed
+ )
+{
+ u8 *buffer = *output_buffer;
+
+
+ /*
+ * The descriptor field is static
+ */
+ *buffer = 0x38;
+
+ buffer += 1;
+
+ /*
+ * Return the number of bytes consumed in this operation
+ */
+ *bytes_consumed = (u32) ((NATIVE_UINT) buffer -
+ (NATIVE_UINT) *output_buffer);
+
+ return (AE_OK);
+}
+
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