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/*******************************************************************************

 *

 * Module Name: rsaddr - Address resource descriptors (16/32/64)

 *

 ******************************************************************************/

/*

 * Copyright (C) 2000 - 2004, R. Byron Moore

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions, and the following disclaimer,

 *    without modification.

 * 2. Redistributions in binary form must reproduce at minimum a disclaimer

 *    substantially similar to the "NO WARRANTY" disclaimer below

 *    ("Disclaimer") and any redistribution must be conditioned upon

 *    including a substantially similar Disclaimer requirement for further

 *    binary redistribution.

 * 3. Neither the names of the above-listed copyright holders nor the names

 *    of any contributors may be used to endorse or promote products derived

 *    from this software without specific prior written permission.

 *

 * Alternatively, this software may be distributed under the terms of the

 * GNU General Public License ("GPL") version 2 as published by the Free

 * Software Foundation.

 *

 * NO WARRANTY

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR

 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING

 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGES.

 */

#include <acpi/acpi.h>

#include <acpi/acresrc.h>

#define _COMPONENT          ACPI_RESOURCES

         ACPI_MODULE_NAME    ("rsaddr")

/*******************************************************************************

 *

 * FUNCTION:    acpi_rs_address16_resource

 *

 * 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

 *

 * 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.

 *

 ******************************************************************************/

acpi_status

acpi_rs_address16_resource (

        u8                              *byte_stream_buffer,

        acpi_size                       *bytes_consumed,

        u8                              **output_buffer,

        acpi_size                       *structure_size)

{

        u8                              *buffer = byte_stream_buffer;

        struct acpi_resource            *output_struct = (void *) *output_buffer;

        u8                              *temp_ptr;

        acpi_size                       struct_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_address16);

        u32                             index;

        u16                             temp16;

        u8                              temp8;

        ACPI_FUNCTION_TRACE ("rs_address16_resource");

        /*

         * Point past the Descriptor to get the number of bytes consumed

         */

        buffer += 1;

        ACPI_MOVE_16_TO_16 (&temp16, buffer);

        /* Validate minimum descriptor length */

        if (temp16 < 13) {

                return_ACPI_STATUS (AE_AML_BAD_RESOURCE_LENGTH);

        }

        *bytes_consumed = temp16 + 3;

        output_struct->id = ACPI_RSTYPE_ADDRESS16;

        /*

         * Get the Resource Type (Byte3)

         */

        buffer += 2;

        temp8 = *buffer;

        /* Values 0-2 are valid */

        if (temp8 > 2) {

                return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE);

        }

        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 (ACPI_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) & 0x03);

        }

        else {

                if (ACPI_IO_RANGE == output_struct->data.address16.resource_type) {

                        output_struct->data.address16.attribute.io.range_attribute =

                                (u16) (temp8 & 0x03);

                        output_struct->data.address16.attribute.io.translation_attribute =

                                (u16) ((temp8 >> 4) & 0x03);

                }

                else {

                        /* BUS_NUMBER_RANGE == Address16.Data->resource_type */

                        /* Nothing needs to be filled in */

                }

        }

        /*

         * Get Granularity (Bytes 6-7)

         */

        buffer += 1;

        ACPI_MOVE_16_TO_32 (&output_struct->data.address16.granularity, buffer);

        /*

         * Get min_address_range (Bytes 8-9)

         */

        buffer += 2;

        ACPI_MOVE_16_TO_32 (&output_struct->data.address16.min_address_range, buffer);

        /*

         * Get max_address_range (Bytes 10-11)

         */

        buffer += 2;

        ACPI_MOVE_16_TO_32 (&output_struct->data.address16.max_address_range, buffer);

        /*

         * Get address_translation_offset (Bytes 12-13)

         */

        buffer += 2;

        ACPI_MOVE_16_TO_32 (&output_struct->data.address16.address_translation_offset, buffer);

        /*

         * Get address_length (Bytes 14-15)

         */

        buffer += 2;

        ACPI_MOVE_16_TO_32 (&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.

         *

         * Note: Some resource descriptors will have an additional null, so

         * we add 1 to the length.

         */

        if (*bytes_consumed > (16 + 1)) {

                /* Dereference the Index */

                temp8 = *buffer;

                output_struct->data.address16.resource_source.index = (u32) temp8;

                /* Point to the String */

                buffer += 1;

                /* Point the String pointer to the end of this structure */

                output_struct->data.address16.resource_source.string_ptr =

                                (char *)((u8 * )output_struct + struct_size);

                temp_ptr = (u8 *) output_struct->data.address16.resource_source.string_ptr;

                /* Copy the string into the buffer */

                index = 0;

                while (0x00 != *buffer) {

                        *temp_ptr = *buffer;

                        temp_ptr += 1;

                        buffer += 1;

                        index += 1;

                }

                /*

                 * Add the terminating null

                 */

                *temp_ptr = 0x00;

                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 = 0x00;

                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;

        return_ACPI_STATUS (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          - Pointer to where the number of bytes

 *                                        used in the output_buffer is returned

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Take the linked list resource structure and fills in the

 *              the appropriate bytes in a byte stream

 *

 ******************************************************************************/

acpi_status

acpi_rs_address16_stream (

        struct acpi_resource            *linked_list,

        u8                              **output_buffer,

        acpi_size                       *bytes_consumed)

{

        u8                              *buffer = *output_buffer;

        u8                              *length_field;

        u8                              temp8;

        char                            *temp_pointer = NULL;

        acpi_size                       actual_bytes;

        ACPI_FUNCTION_TRACE ("rs_address16_stream");

        /*

         * 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 (ACPI_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 &

                         0x03) << 1;

        }

        else if (ACPI_IO_RANGE == linked_list->data.address16.resource_type) {

                temp8 = (u8)

                        (linked_list->data.address16.attribute.io.range_attribute &

                         0x03);

                temp8 |=

                        (linked_list->data.address16.attribute.io.translation_attribute &

                         0x03) << 4;

        }

        *buffer = temp8;

        buffer += 1;

        /*

         * Set the address space granularity

         */

        ACPI_MOVE_32_TO_16 (buffer, &linked_list->data.address16.granularity);

        buffer += 2;

        /*

         * Set the address range minimum

         */

        ACPI_MOVE_32_TO_16 (buffer, &linked_list->data.address16.min_address_range);

        buffer += 2;

        /*

         * Set the address range maximum

         */

        ACPI_MOVE_32_TO_16 (buffer, &linked_list->data.address16.max_address_range);

        buffer += 2;

        /*

         * Set the address translation offset

         */

        ACPI_MOVE_32_TO_16 (buffer, &linked_list->data.address16.address_translation_offset);

        buffer += 2;

        /*

         * Set the address length

         */

        ACPI_MOVE_32_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 = (char *) buffer;

                /*

                 * Copy the string

                 */

                ACPI_STRCPY (temp_pointer,

                                linked_list->data.address16.resource_source.string_ptr);

                /*

                 * Buffer needs to be set to the length of the sting + one for the

                 * terminating null

                 */

                buffer += (acpi_size)(ACPI_STRLEN (linked_list->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);

        return_ACPI_STATUS (AE_OK);

}

/*******************************************************************************

 *

 * FUNCTION:    acpi_rs_address32_resource

 *

 * 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

 *

 * 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.

 *

 ******************************************************************************/

acpi_status

acpi_rs_address32_resource (

        u8                              *byte_stream_buffer,

        acpi_size                       *bytes_consumed,

        u8                              **output_buffer,

        acpi_size                       *structure_size)

{

        u8                              *buffer;

        struct acpi_resource            *output_struct= (void *) *output_buffer;

        u16                             temp16;

        u8                              temp8;

        u8                              *temp_ptr;

        acpi_size                       struct_size;

        u32                             index;

        ACPI_FUNCTION_TRACE ("rs_address32_resource");

        buffer = byte_stream_buffer;

        struct_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_address32);

        /*

         * Point past the Descriptor to get the number of bytes consumed

         */

        buffer += 1;

        ACPI_MOVE_16_TO_16 (&temp16, buffer);

        /* Validate minimum descriptor length */

        if (temp16 < 23) {

                return_ACPI_STATUS (AE_AML_BAD_RESOURCE_LENGTH);

        }

        *bytes_consumed = temp16 + 3;

        output_struct->id = ACPI_RSTYPE_ADDRESS32;

        /*

         * Get the Resource Type (Byte3)

         */

        buffer += 2;

        temp8 = *buffer;

        /* Values 0-2 are valid */

        if(temp8 > 2) {

                return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE);

        }

        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 (ACPI_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) & 0x03);

        }

        else {

                if (ACPI_IO_RANGE == output_struct->data.address32.resource_type) {

                        output_struct->data.address32.attribute.io.range_attribute =

                                (u16) (temp8 & 0x03);

                        output_struct->data.address32.attribute.io.translation_attribute =

                                (u16) ((temp8 >> 4) & 0x03);

                }

                else {

                        /* BUS_NUMBER_RANGE == output_struct->Data.Address32.resource_type */

                        /* Nothing needs to be filled in */

                }

        }

        /*

         * 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.

         */

        if (*bytes_consumed > (26 + 1)) {

                /* Dereference the Index */

                temp8 = *buffer;

                output_struct->data.address32.resource_source.index =

                                (u32) temp8;

                /* Point to the String */

                buffer += 1;

                /* Point the String pointer to the end of this structure */

                output_struct->data.address32.resource_source.string_ptr =

                                (char *)((u8 *)output_struct + struct_size);

                temp_ptr = (u8 *) output_struct->data.address32.resource_source.string_ptr;

                /* Copy the string into the buffer */

                index = 0;

                while (0x00 != *buffer) {

                        *temp_ptr = *buffer;

                        temp_ptr += 1;

                        buffer += 1;

                        index += 1;

                }

                /*

                 * Add the terminating null

                 */

                *temp_ptr = 0x00;

                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 = 0x00;

                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;

        return_ACPI_STATUS (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          - Pointer to where the number of bytes

 *                                        used in the output_buffer is returned

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Take the linked list resource structure and fills in the

 *              the appropriate bytes in a byte stream

 *

 ******************************************************************************/

acpi_status

acpi_rs_address32_stream (

        struct acpi_resource            *linked_list,

        u8                              **output_buffer,

        acpi_size                       *bytes_consumed)

{

        u8                              *buffer;

        u16                             *length_field;

        u8                              temp8;

        char                            *temp_pointer;

        ACPI_FUNCTION_TRACE ("rs_address32_stream");

        buffer = *output_buffer;

        /*

         * The descriptor field is static

         */

        *buffer = 0x87;

        buffer += 1;

        /*

         * Set 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)

         */

        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 (ACPI_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 &

                         0x03) << 1;

        }

        else if (ACPI_IO_RANGE == linked_list->data.address32.resource_type) {