patch-2.4.0-test3 linux/drivers/acpi/resources/rsaddr.c
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- Lines: 811
- Date:
Wed Jul 5 11:23:13 2000
- Orig file:
v2.4.0-test2/linux/drivers/acpi/resources/rsaddr.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.4.0-test2/linux/drivers/acpi/resources/rsaddr.c linux/drivers/acpi/resources/rsaddr.c
@@ -0,0 +1,810 @@
+/******************************************************************************
+ *
+ * Module Name: rsaddr - Acpi_rs_address16_resource
+ * Acpi_rs_address16_stream
+ * Acpi_rs_address32_resource
+ * Acpi_rs_address32_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 ("rsaddr");
+
+
+/***************************************************************************
+ * FUNCTION: Acpi_rs_address16_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_address16_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;
+ u32 index;
+ u32 struct_size = sizeof(ADDRESS16_RESOURCE) +
+ RESOURCE_LENGTH_NO_DATA;
+
+
+ /*
+ * Point past the Descriptor to get the number of bytes consumed
+ */
+ buffer += 1;
+
+ temp16 = *(u16 *)buffer;
+
+ *bytes_consumed = temp16 + 3;
+
+ output_struct->id = address16;
+
+ output_struct->length = struct_size;
+
+ /*
+ * Get the Resource Type (Byte3)
+ */
+ buffer += 2;
+ temp8 = *buffer;
+
+ /* Values 0-2 are valid */
+ if (temp8 > 2) {
+ return (AE_ERROR);
+ }
+
+ output_struct->data.address16.resource_type = temp8 & 0x03;
+
+ /*
+ * Get the General Flags (Byte4)
+ */
+ buffer += 1;
+ temp8 = *buffer;
+
+ /*
+ * Producer / Consumer
+ */
+ output_struct->data.address16.producer_consumer = temp8 & 0x01;
+
+ /*
+ * Decode
+ */
+ output_struct->data.address16.decode = (temp8 >> 1) & 0x01;
+
+ /*
+ * Min Address Fixed
+ */
+ output_struct->data.address16.min_address_fixed = (temp8 >> 2) & 0x01;
+
+ /*
+ * Max Address Fixed
+ */
+ output_struct->data.address16.max_address_fixed = (temp8 >> 3) & 0x01;
+
+ /*
+ * Get the Type Specific Flags (Byte5)
+ */
+ buffer += 1;
+ temp8 = *buffer;
+
+ if (MEMORY_RANGE == output_struct->data.address16.resource_type) {
+ output_struct->data.address16.attribute.memory.read_write_attribute =
+ (u16) (temp8 & 0x01);
+ output_struct->data.address16.attribute.memory.cache_attribute =
+ (u16) ((temp8 >> 1) & 0x0F);
+ }
+
+ else {
+ if (IO_RANGE == output_struct->data.address16.resource_type) {
+ output_struct->data.address16.attribute.io.range_attribute =
+ (u16) (temp8 & 0x03);
+ }
+
+ else {
+ /* BUS_NUMBER_RANGE == Address32_data->Resource_type */
+ /* Nothing needs to be filled in */
+ }
+ }
+
+ /*
+ * Get Granularity (Bytes 6-7)
+ */
+ buffer += 1;
+ MOVE_UNALIGNED16_TO_16 (&output_struct->data.address16.granularity,
+ buffer);
+
+ /*
+ * Get Min_address_range (Bytes 8-9)
+ */
+ buffer += 2;
+ MOVE_UNALIGNED16_TO_16 (&output_struct->data.address16.min_address_range,
+ buffer);
+
+ /*
+ * Get Max_address_range (Bytes 10-11)
+ */
+ buffer += 2;
+ MOVE_UNALIGNED16_TO_16
+ (&output_struct->data.address16.max_address_range,
+ buffer);
+
+ /*
+ * Get Address_translation_offset (Bytes 12-13)
+ */
+ buffer += 2;
+ MOVE_UNALIGNED16_TO_16
+ (&output_struct->data.address16.address_translation_offset,
+ buffer);
+
+ /*
+ * Get Address_length (Bytes 14-15)
+ */
+ buffer += 2;
+ MOVE_UNALIGNED16_TO_16
+ (&output_struct->data.address16.address_length,
+ buffer);
+
+ /*
+ * Resource Source Index (if present)
+ */
+ buffer += 2;
+
+ /*
+ * 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.
+ */
+ if (*bytes_consumed > 16) {
+ /* Dereference the Index */
+
+ temp8 = *buffer;
+ output_struct->data.address16.resource_source_index =
+ (u32) temp8;
+
+ /* Point to the String */
+
+ buffer += 1;
+
+ /* Copy the string into the buffer */
+
+ index = 0;
+
+ while (0x00 != *buffer) {
+ output_struct->data.address16.resource_source[index] =
+ *buffer;
+
+ buffer += 1;
+ index += 1;
+ }
+
+ /*
+ * Add the terminating null
+ */
+ output_struct->data.address16.resource_source[index] = 0x00;
+
+ output_struct->data.address16.resource_source_string_length =
+ index + 1;
+
+ /*
+ * In order for the Struct_size to fall on a 32-bit boundry,
+ * calculate the length of the string and expand the
+ * Struct_size to the next 32-bit boundry.
+ */
+ temp8 = (u8) (index + 1);
+ struct_size += ROUND_UP_TO_32_bITS (temp8);
+ }
+ else {
+ output_struct->data.address16.resource_source_index = 0x00;
+ output_struct->data.address16.resource_source_string_length = 0;
+ output_struct->data.address16.resource_source[0] = 0x00;
+ }
+
+ /*
+ * 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_address16_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_address16_stream (
+ RESOURCE *linked_list,
+ u8 **output_buffer,
+ u32 *bytes_consumed)
+{
+ u8 *buffer = *output_buffer;
+ u8 *length_field;
+ u8 temp8 = 0;
+ u8 *temp_pointer = NULL;
+ u32 actual_bytes;
+
+
+ /*
+ * The descriptor field is static
+ */
+ *buffer = 0x88;
+ buffer += 1;
+
+ /*
+ * Save a pointer to the Length field - to be filled in later
+ */
+ length_field = buffer;
+ buffer += 2;
+
+ /*
+ * Set the Resource Type (Memory, Io, Bus_number)
+ */
+ temp8 = (u8) (linked_list->data.address16.resource_type & 0x03);
+ *buffer = temp8;
+ buffer += 1;
+
+ /*
+ * Set the general flags
+ */
+ temp8 = (u8) (linked_list->data.address16.producer_consumer & 0x01);
+
+ temp8 |= (linked_list->data.address16.decode & 0x01) << 1;
+ temp8 |= (linked_list->data.address16.min_address_fixed & 0x01) << 2;
+ temp8 |= (linked_list->data.address16.max_address_fixed & 0x01) << 3;
+
+ *buffer = temp8;
+ buffer += 1;
+
+ /*
+ * Set the type specific flags
+ */
+ temp8 = 0;
+
+ if (MEMORY_RANGE == linked_list->data.address16.resource_type) {
+ temp8 = (u8)
+ (linked_list->data.address16.attribute.memory.read_write_attribute &
+ 0x01);
+
+ temp8 |=
+ (linked_list->data.address16.attribute.memory.cache_attribute &
+ 0x0F) << 1;
+ }
+
+ else if (IO_RANGE == linked_list->data.address16.resource_type) {
+ temp8 = (u8)
+ (linked_list->data.address16.attribute.io.range_attribute &
+ 0x03);
+ }
+
+ *buffer = temp8;
+ buffer += 1;
+
+ /*
+ * Set the address space granularity
+ */
+ MOVE_UNALIGNED16_TO_16 (buffer,
+ &linked_list->data.address16.granularity);
+ buffer += 2;
+
+ /*
+ * Set the address range minimum
+ */
+ MOVE_UNALIGNED16_TO_16 (buffer,
+ &linked_list->data.address16.min_address_range);
+
+ buffer += 2;
+
+ /*
+ * Set the address range maximum
+ */
+ MOVE_UNALIGNED16_TO_16 (buffer,
+ &linked_list->data.address16.max_address_range);
+
+ buffer += 2;
+
+ /*
+ * Set the address translation offset
+ */
+ MOVE_UNALIGNED16_TO_16 (buffer,
+ &linked_list->data.address16.address_translation_offset);
+
+ buffer += 2;
+
+ /*
+ * Set the address length
+ */
+ MOVE_UNALIGNED16_TO_16 (buffer,
+ &linked_list->data.address16.address_length);
+
+ buffer += 2;
+
+ /*
+ * Resource Source Index and Resource Source are optional
+ */
+ if (0 != linked_list->data.address16.resource_source_string_length) {
+ temp8 = (u8) linked_list->data.address16.resource_source_index;
+
+ *buffer = temp8;
+ buffer += 1;
+
+ temp_pointer = buffer;
+
+ /*
+ * Copy the string
+ */
+ STRCPY (temp_pointer, linked_list->data.address16.resource_source);
+
+ /*
+ * Buffer needs to be set to the length of the sting + one for the
+ * terminating null
+ */
+ buffer += (STRLEN (linked_list->data.address16.resource_source) + 1);
+ }
+
+ /*
+ * Return the number of bytes consumed in this operation
+ */
+ actual_bytes = (u32) ((NATIVE_UINT) buffer -
+ (NATIVE_UINT) *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;
+ MOVE_UNALIGNED16_TO_16 (length_field, &actual_bytes);
+
+ return (AE_OK);
+}
+
+/***************************************************************************
+ * FUNCTION: Acpi_rs_address32_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_address32_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;
+ u32 struct_size = sizeof (ADDRESS32_RESOURCE) +
+ RESOURCE_LENGTH_NO_DATA;
+ u32 index;
+
+
+ /*
+ * Point past the Descriptor to get the number of bytes consumed
+ */
+ buffer += 1;
+ MOVE_UNALIGNED16_TO_16 (&temp16, buffer);
+
+ *bytes_consumed = temp16 + 3;
+
+ output_struct->id = address32;
+
+ /*
+ * Get the Resource Type (Byte3)
+ */
+ buffer += 2;
+ temp8 = *buffer;
+
+ /* Values 0-2 are valid */
+ if(temp8 > 2) {
+ return (AE_ERROR);
+ }
+
+ output_struct->data.address32.resource_type = temp8 & 0x03;
+
+ /*
+ * Get the General Flags (Byte4)
+ */
+ buffer += 1;
+ temp8 = *buffer;
+
+ /*
+ * Producer / Consumer
+ */
+ output_struct->data.address32.producer_consumer = temp8 & 0x01;
+
+ /*
+ * Decode
+ */
+ output_struct->data.address32.decode = (temp8 >> 1) & 0x01;
+
+ /*
+ * Min Address Fixed
+ */
+ output_struct->data.address32.min_address_fixed = (temp8 >> 2) & 0x01;
+
+ /*
+ * Max Address Fixed
+ */
+ output_struct->data.address32.max_address_fixed = (temp8 >> 3) & 0x01;
+
+ /*
+ * Get the Type Specific Flags (Byte5)
+ */
+ buffer += 1;
+ temp8 = *buffer;
+
+ if (MEMORY_RANGE == output_struct->data.address32.resource_type) {
+ output_struct->data.address32.attribute.memory.read_write_attribute =
+ (u16) (temp8 & 0x01);
+
+ output_struct->data.address32.attribute.memory.cache_attribute =
+ (u16) ((temp8 >> 1) & 0x0F);
+ }
+
+ else {
+ if (IO_RANGE == output_struct->data.address32.resource_type) {
+ output_struct->data.address32.attribute.io.range_attribute =
+ (u16) (temp8 & 0x03);
+ }
+
+ else {
+ /* BUS_NUMBER_RANGE == Output_struct->Data.Address32.Resource_type */
+ /* Nothing needs to be filled in */
+ }
+ }
+
+ /*
+ * Get Granularity (Bytes 6-9)
+ */
+ buffer += 1;
+ MOVE_UNALIGNED32_TO_32 (&output_struct->data.address32.granularity,
+ buffer);
+
+ /*
+ * Get Min_address_range (Bytes 10-13)
+ */
+ buffer += 4;
+ MOVE_UNALIGNED32_TO_32 (&output_struct->data.address32.min_address_range,
+ buffer);
+
+ /*
+ * Get Max_address_range (Bytes 14-17)
+ */
+ buffer += 4;
+ MOVE_UNALIGNED32_TO_32 (&output_struct->data.address32.max_address_range,
+ buffer);
+
+ /*
+ * Get Address_translation_offset (Bytes 18-21)
+ */
+ buffer += 4;
+ MOVE_UNALIGNED32_TO_32
+ (&output_struct->data.address32.address_translation_offset,
+ buffer);
+
+ /*
+ * Get Address_length (Bytes 22-25)
+ */
+ buffer += 4;
+ MOVE_UNALIGNED32_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:
+ * Each Interrupt takes 32-bits + the 5 bytes of the
+ * stream that are default.
+ */
+ if (*bytes_consumed > 26) {
+ /* Dereference the Index */
+
+ temp8 = *buffer;
+ output_struct->data.address32.resource_source_index = (u32)temp8;
+
+ /* Point to the String */
+
+ buffer += 1;
+
+ /* Copy the string into the buffer */
+
+ index = 0;
+
+ while (0x00 != *buffer) {
+ output_struct->data.address32.resource_source[index] = *buffer;
+ buffer += 1;
+ index += 1;
+ }
+
+ /*
+ * Add the terminating null
+ */
+ output_struct->data.address32.resource_source[index] = 0x00;
+
+ output_struct->data.address32.resource_source_string_length = index + 1;
+
+ /*
+ * In order for the Struct_size to fall on a 32-bit boundry,
+ * calculate the length of the string and expand the
+ * Struct_size to the next 32-bit boundry.
+ */
+ temp8 = (u8) (index + 1);
+ struct_size += ROUND_UP_TO_32_bITS (temp8);
+ }
+
+ else {
+ output_struct->data.address32.resource_source_index = 0x00;
+ output_struct->data.address32.resource_source_string_length = 0;
+ output_struct->data.address32.resource_source[0] = 0x00;
+ }
+
+ /*
+ * 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_address32_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_address32_stream (
+ RESOURCE *linked_list,
+ u8 **output_buffer,
+ u32 *bytes_consumed)
+{
+ u8 *buffer = *output_buffer;
+ u16 *length_field;
+ u8 temp8 = 0;
+ u8 *temp_pointer = NULL;
+
+
+ /*
+ * The descriptor field is static
+ */
+ *buffer = 0x87;
+
+ buffer += 1;
+
+ /*
+ * Set a pointer to the Length field - to be filled in later
+ */
+
+ length_field = (u16 *)buffer;
+
+ buffer += 2;
+
+ /*
+ * Set the Resource Type (Memory, Io, Bus_number)
+ */
+ temp8 = (u8) (linked_list->data.address32.resource_type & 0x03);
+
+ *buffer = temp8;
+
+ buffer += 1;
+
+ /*
+ * Set the general flags
+ */
+ temp8 = (u8) (linked_list->data.address32.producer_consumer & 0x01);
+
+ temp8 |= (linked_list->data.address32.decode & 0x01) << 1;
+
+ temp8 |= (linked_list->data.address32.min_address_fixed & 0x01) << 2;
+
+ temp8 |= (linked_list->data.address32.max_address_fixed & 0x01) << 3;
+
+ *buffer = temp8;
+
+ buffer += 1;
+
+ /*
+ * Set the type specific flags
+ */
+ temp8 = 0;
+
+ if(MEMORY_RANGE == linked_list->data.address32.resource_type) {
+ temp8 = (u8)
+ (linked_list->data.address32.attribute.memory.read_write_attribute &
+ 0x01);
+
+ temp8 |=
+ (linked_list->data.address32.attribute.memory.cache_attribute &
+ 0x0F) << 1;
+ }
+
+ else if (IO_RANGE == linked_list->data.address32.resource_type) {
+ temp8 = (u8)
+ (linked_list->data.address32.attribute.io.range_attribute &
+ 0x03);
+ }
+
+ *buffer = temp8;
+ buffer += 1;
+
+ /*
+ * Set the address space granularity
+ */
+ MOVE_UNALIGNED32_TO_32 (buffer,
+ &linked_list->data.address32.granularity);
+ buffer += 4;
+
+ /*
+ * Set the address range minimum
+ */
+ MOVE_UNALIGNED32_TO_32 (buffer,
+ &linked_list->data.address32.min_address_range);
+
+ buffer += 4;
+
+ /*
+ * Set the address range maximum
+ */
+ MOVE_UNALIGNED32_TO_32 (buffer,
+ &linked_list->data.address32.max_address_range);
+
+ buffer += 4;
+
+ /*
+ * Set the address translation offset
+ */
+ MOVE_UNALIGNED32_TO_32 (buffer,
+ &linked_list->data.address32.address_translation_offset);
+
+ buffer += 4;
+
+ /*
+ * Set the address length
+ */
+ MOVE_UNALIGNED32_TO_32 (buffer,
+ &linked_list->data.address32.address_length);
+
+ buffer += 4;
+
+ /*
+ * Resource Source Index and Resource Source are optional
+ */
+ if (0 != linked_list->data.address32.resource_source_string_length) {
+ temp8 = (u8) linked_list->data.address32.resource_source_index;
+
+ *buffer = temp8;
+
+ buffer += 1;
+
+ temp_pointer = buffer;
+
+ /*
+ * Copy the string
+ */
+ STRCPY (temp_pointer, linked_list->data.address32.resource_source);
+
+ /*
+ * Buffer needs to be set to the length of the sting + one for the
+ * terminating null
+ */
+ buffer += (STRLEN (linked_list->data.address32.resource_source) + 1);
+ }
+
+ /*
+ * Return the number of bytes consumed in this operation
+ */
+ *bytes_consumed = (u32) ((NATIVE_UINT) buffer -
+ (NATIVE_UINT) *output_buffer);
+
+ /*
+ * Set the length field to the number of bytes consumed
+ * minus the header size (3 bytes)
+ */
+ *length_field = (u16) (*bytes_consumed - 3);
+
+ return (AE_OK);
+}
+
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