diff options
Diffstat (limited to 'drivers/acpi/resources/rsaddr.c')
| -rw-r--r-- | drivers/acpi/resources/rsaddr.c | 1118 |
1 files changed, 0 insertions, 1118 deletions
diff --git a/drivers/acpi/resources/rsaddr.c b/drivers/acpi/resources/rsaddr.c deleted file mode 100644 index 23b54baa0cb..00000000000 --- a/drivers/acpi/resources/rsaddr.c +++ /dev/null @@ -1,1118 +0,0 @@ -/******************************************************************************* - * - * Module Name: rsaddr - Address resource descriptors (16/32/64) - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2005, 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") - -/* Local prototypes */ -static void -acpi_rs_decode_general_flags(union acpi_resource_data *resource, u8 flags); - -static u8 acpi_rs_encode_general_flags(union acpi_resource_data *resource); - -static void -acpi_rs_decode_specific_flags(union acpi_resource_data *resource, u8 flags); - -static u8 acpi_rs_encode_specific_flags(union acpi_resource_data *resource); - -/******************************************************************************* - * - * FUNCTION: acpi_rs_decode_general_flags - * - * PARAMETERS: Resource - Address resource data struct - * Flags - Actual flag byte - * - * RETURN: Decoded flag bits in resource struct - * - * DESCRIPTION: Decode a general flag byte to an address resource struct - * - ******************************************************************************/ - -static void -acpi_rs_decode_general_flags(union acpi_resource_data *resource, u8 flags) -{ - ACPI_FUNCTION_ENTRY(); - - /* Producer / Consumer - flag bit[0] */ - - resource->address.producer_consumer = (u32) (flags & 0x01); - - /* Decode (_DEC) - flag bit[1] */ - - resource->address.decode = (u32) ((flags >> 1) & 0x01); - - /* Min Address Fixed (_MIF) - flag bit[2] */ - - resource->address.min_address_fixed = (u32) ((flags >> 2) & 0x01); - - /* Max Address Fixed (_MAF) - flag bit[3] */ - - resource->address.max_address_fixed = (u32) ((flags >> 3) & 0x01); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_encode_general_flags - * - * PARAMETERS: Resource - Address resource data struct - * - * RETURN: Encoded general flag byte - * - * DESCRIPTION: Construct a general flag byte from an address 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); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_decode_specific_flags - * - * PARAMETERS: Resource - Address resource data struct - * Flags - Actual flag byte - * - * RETURN: Decoded flag bits in attribute struct - * - * DESCRIPTION: Decode a type-specific flag byte to an attribute struct. - * Type-specific flags are only defined for the Memory and IO - * resource types. - * - ******************************************************************************/ - -static void -acpi_rs_decode_specific_flags(union acpi_resource_data *resource, u8 flags) -{ - ACPI_FUNCTION_ENTRY(); - - if (resource->address.resource_type == ACPI_MEMORY_RANGE) { - /* Write Status (_RW) - flag bit[0] */ - - resource->address.attribute.memory.read_write_attribute = - (u16) (flags & 0x01); - - /* Memory Attributes (_MEM) - flag bits[2:1] */ - - resource->address.attribute.memory.cache_attribute = - (u16) ((flags >> 1) & 0x03); - } else if (resource->address.resource_type == ACPI_IO_RANGE) { - /* Ranges (_RNG) - flag bits[1:0] */ - - resource->address.attribute.io.range_attribute = - (u16) (flags & 0x03); - - /* Translations (_TTP and _TRS) - flag bits[5:4] */ - - resource->address.attribute.io.translation_attribute = - (u16) ((flags >> 4) & 0x03); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_encode_specific_flags - * - * PARAMETERS: Resource - Address resource data struct - * - * RETURN: Encoded type-specific flag byte - * - * DESCRIPTION: Construct a type-specific flag byte from an attribute struct. - * Type-specific flags are only defined for the Memory and IO - * resource types. - * - ******************************************************************************/ - -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); - } 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 (flags); -} - -/******************************************************************************* - * - * 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) -{ - 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_TRACE("rs_address16_resource"); - - /* Get the Descriptor Length field */ - - 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 and 0xC0-0xFF are valid */ - - if ((temp8 > 2) && (temp8 < 0xC0)) { - return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); - } - - 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 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 */ - - output_struct->data.address16.resource_source.index = - (u32) * buffer; - - /* 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 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; - 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; - acpi_size actual_bytes; - - ACPI_FUNCTION_TRACE("rs_address16_stream"); - - /* Set the Descriptor Type field */ - - *buffer = ACPI_RDESC_TYPE_WORD_ADDRESS_SPACE; - 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) */ - - *buffer = (u8) (linked_list->data.address16.resource_type & 0x03); - buffer += 1; - - /* Set the general flags */ - - *buffer = acpi_rs_encode_general_flags(&linked_list->data); - buffer += 1; - - /* Set the type specific flags */ - - *buffer = acpi_rs_encode_specific_flags(&linked_list->data); - 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 (linked_list->data.address16.resource_source.string_length) { - *buffer = - (u8) linked_list->data.address16.resource_source.index; - buffer += 1; - - /* Copy the resource_source string */ - - ACPI_STRCPY((char *)buffer, - linked_list->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 - (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) -{ - 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 */ - - 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 and 0xC0-0xFF are valid */ - - if ((temp8 > 2) && (temp8 < 0xC0)) { - 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. - */ - if (*bytes_consumed > (26 + 1)) { - /* Dereference the Index */ - - output_struct->data.address32.resource_source.index = - (u32) * buffer; - - /* 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 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; - 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; - - ACPI_FUNCTION_TRACE("rs_address32_stream"); - - buffer = *output_buffer; - - /* Set the Descriptor Type field */ - - *buffer = ACPI_RDESC_TYPE_DWORD_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) (linked_list->data.address32.resource_type & 0x03); - buffer += 1; - - /* Set the general flags */ - - *buffer = acpi_rs_encode_general_flags(&linked_list->data); - buffer += 1; - - /* Set the type specific flags */ - - *buffer = acpi_rs_encode_specific_flags(&linked_list->data); - buffer += 1; - - /* Set the address space granularity */ - - ACPI_MOVE_32_TO_32(buffer, &linked_list->data.address32.granularity); - buffer += 4; - - /* Set the address range minimum */ - - ACPI_MOVE_32_TO_32(buffer, - &linked_list->data.address32.min_address_range); - buffer += 4; - - /* Set the address range maximum */ - - ACPI_MOVE_32_TO_32(buffer, - &linked_list->data.address32.max_address_range); - buffer += 4; - - /* Set the address translation offset */ - - ACPI_MOVE_32_TO_32(buffer, - &linked_list->data.address32. - address_translation_offset); - buffer += 4; - - /* Set the address length */ - - ACPI_MOVE_32_TO_32(buffer, &linked_list->data.address32.address_length); - buffer += 4; - - /* Resource Source Index and Resource Source are optional */ - - if (linked_list->data.address32.resource_source.string_length) { - *buffer = - (u8) linked_list->data.address32.resource_source.index; - buffer += 1; - - /* Copy the resource_source string */ - - ACPI_STRCPY((char *)buffer, - linked_list->data.address32.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 - (linked_list->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); - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_address64_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_address64_resource(u8 * byte_stream_buffer, - acpi_size * bytes_consumed, - u8 ** output_buffer, acpi_size * structure_size) -{ - 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->id = ACPI_RSTYPE_ADDRESS64; - - /* Get the Resource Type (Byte3) */ - - buffer += 2; - temp8 = *buffer; - - /* Values 0-2 and 0xC0-0xFF are valid */ - - if ((temp8 > 2) && (temp8 < 0xC0)) { - 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 address_length (Bytes 38-45) or (Bytes 40-47) */ - - buffer += 8; - ACPI_MOVE_64_TO_64(&output_struct->data.address64.address_length, - buffer); - - 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; - - if (resource_type == ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE) { - /* Get type_specific_attribute (Bytes 48-55) */ - - buffer += 8; - ACPI_MOVE_64_TO_64(&output_struct->data.address64. - type_specific_attributes, buffer); - } else { - output_struct->data.address64.type_specific_attributes = 0; - - /* Resource Source Index (if present) */ - - buffer += 8; - - /* - * 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 */ - - output_struct->data.address64.resource_source.index = - (u32) * buffer; - - /* Point to the String */ - - buffer += 1; - - /* Point the String pointer to the end of this structure */ - - output_struct->data.address64.resource_source. - string_ptr = - (char *)((u8 *) output_struct + struct_size); - - temp_ptr = (u8 *) - output_struct->data.address64.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.address64.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); - } - } - - /* 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_address64_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_address64_stream(struct acpi_resource *linked_list, - u8 ** output_buffer, acpi_size * bytes_consumed) -{ - 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) (linked_list->data.address64.resource_type & 0x03); - buffer += 1; - - /* Set the general flags */ - - *buffer = acpi_rs_encode_general_flags(&linked_list->data); - buffer += 1; - - /* Set the type specific flags */ - - *buffer = acpi_rs_encode_specific_flags(&linked_list->data); - buffer += 1; - - /* Set the address space granularity */ - - ACPI_MOVE_64_TO_64(buffer, &linked_list->data.address64.granularity); - buffer += 8; - - /* Set the address range minimum */ - - ACPI_MOVE_64_TO_64(buffer, - &linked_list->data.address64.min_address_range); - buffer += 8; - - /* Set the address range maximum */ - - ACPI_MOVE_64_TO_64(buffer, - &linked_list->data.address64.max_address_range); - buffer += 8; - - /* Set the address translation offset */ - - ACPI_MOVE_64_TO_64(buffer, - &linked_list->data.address64. - address_translation_offset); - buffer += 8; - - /* Set the address length */ - - ACPI_MOVE_64_TO_64(buffer, &linked_list->data.address64.address_length); - buffer += 8; - - /* Resource Source Index and Resource Source are optional */ - - if (linked_list->data.address64.resource_source.string_length) { - *buffer = - (u8) linked_list->data.address64.resource_source.index; - buffer += 1; - - /* Copy the resource_source string */ - - ACPI_STRCPY((char *)buffer, - linked_list->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 - (linked_list->data.address64.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); - return_ACPI_STATUS(AE_OK); -} |