| /******************************************************************************* |
| * |
| * Module Name: rsaddr - Address resource descriptors (16/32/64) |
| * $Revision: 19 $ |
| * |
| ******************************************************************************/ |
| |
| /* |
| * Copyright (C) 2000, 2001 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" |
| #include "acresrc.h" |
| |
| #define _COMPONENT ACPI_RESOURCES |
| 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 |
| * |
| * 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; |
| acpi_resource *output_struct = (acpi_resource *) *output_buffer; |
| NATIVE_CHAR *temp_ptr; |
| u32 struct_size = SIZEOF_RESOURCE (acpi_resource_address16); |
| u32 index; |
| u16 temp16; |
| u8 temp8; |
| |
| |
| FUNCTION_TRACE ("Rs_address16_resource"); |
| |
| /* |
| * 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 = 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 (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 == Address16.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; |
| |
| /* Point the String pointer to the end of this structure */ |
| |
| output_struct->data.address16.resource_source.string_ptr = |
| (NATIVE_CHAR *)((u8 * )output_struct + struct_size); |
| |
| temp_ptr = 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 += 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 = 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 - u32 pointer that is filled with |
| * the number of bytes of the |
| * Output_buffer used |
| * |
| * 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 ( |
| acpi_resource *linked_list, |
| u8 **output_buffer, |
| u32 *bytes_consumed) |
| { |
| u8 *buffer = *output_buffer; |
| u8 *length_field; |
| u8 temp8; |
| NATIVE_CHAR *temp_pointer = NULL; |
| u32 actual_bytes; |
| |
| |
| 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 (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 = (NATIVE_CHAR *) buffer; |
| |
| /* |
| * Copy the string |
| */ |
| 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 += (STRLEN (linked_list->data.address16.resource_source.string_ptr) |
| + 1); |
| } |
| |
| /* |
| * Return the number of bytes consumed in this operation |
| */ |
| actual_bytes = POINTER_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; |
| MOVE_UNALIGNED16_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 - 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 |
| * |
| * 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; |
| acpi_resource *output_struct; |
| u16 temp16; |
| u8 temp8; |
| NATIVE_CHAR *temp_ptr; |
| u32 struct_size; |
| u32 index; |
| |
| |
| FUNCTION_TRACE ("Rs_address32_resource"); |
| |
| |
| buffer = byte_stream_buffer; |
| output_struct = (acpi_resource *) *output_buffer; |
| |
| struct_size = SIZEOF_RESOURCE (acpi_resource_address32); |
| |
| /* |
| * 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 = 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 (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: |
| */ |
| if (*bytes_consumed > 26) { |
| /* 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 = |
| (NATIVE_CHAR *)((u8 *)output_struct + struct_size); |
| |
| temp_ptr = 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 += 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 = 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 - u32 pointer that is filled with |
| * the number of bytes of the |
| * Output_buffer used |
| * |
| * 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 ( |
| acpi_resource *linked_list, |
| u8 **output_buffer, |
| u32 *bytes_consumed) |
| { |
| u8 *buffer; |
| u16 *length_field; |
| u8 temp8; |
| NATIVE_CHAR *temp_pointer; |
| |
| |
| 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 = (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 = (NATIVE_CHAR *) buffer; |
| |
| /* |
| * Copy the string |
| */ |
| STRCPY (temp_pointer, |
| linked_list->data.address32.resource_source.string_ptr); |
| |
| /* |
| * Buffer needs to be set to the length of the sting + one for the |
| * terminating null |
| */ |
| buffer += (STRLEN (linked_list->data.address32.resource_source.string_ptr) + 1); |
| } |
| |
| /* |
| * Return the number of bytes consumed in this operation |
| */ |
| *bytes_consumed = POINTER_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 - 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 |
| * |
| * 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, |
| u32 *bytes_consumed, |
| u8 **output_buffer, |
| u32 *structure_size) |
| { |
| u8 *buffer; |
| acpi_resource *output_struct; |
| u16 temp16; |
| u8 temp8; |
| NATIVE_CHAR *temp_ptr; |
| u32 struct_size; |
| u32 index; |
| |
| |
| FUNCTION_TRACE ("Rs_address64_resource"); |
| |
| |
| buffer = byte_stream_buffer; |
| output_struct = (acpi_resource *) *output_buffer; |
| |
| struct_size = SIZEOF_RESOURCE (acpi_resource_address64); |
| |
| /* |
| * 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 = ACPI_RSTYPE_ADDRESS64; |
| |
| /* |
| * 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.address64.resource_type = temp8 & 0x03; |
| |
| /* |
| * Get the General Flags (Byte4) |
| */ |
| buffer += 1; |
| temp8 = *buffer; |
| |
| /* |
| * Producer / Consumer |
| */ |
| output_struct->data.address64.producer_consumer = temp8 & 0x01; |
| |
| /* |
| * Decode |
| */ |
| output_struct->data.address64.decode = (temp8 >> 1) & 0x01; |
| |
| /* |
| * Min Address Fixed |
| */ |
| output_struct->data.address64.min_address_fixed = (temp8 >> 2) & 0x01; |
| |
| /* |
| * Max Address Fixed |
| */ |
| output_struct->data.address64.max_address_fixed = (temp8 >> 3) & 0x01; |
| |
| /* |
| * Get the Type Specific Flags (Byte5) |
| */ |
| buffer += 1; |
| temp8 = *buffer; |
| |
| if (MEMORY_RANGE == output_struct->data.address64.resource_type) { |
| output_struct->data.address64.attribute.memory.read_write_attribute = |
| (u16) (temp8 & 0x01); |
| |
| output_struct->data.address64.attribute.memory.cache_attribute = |
| (u16) ((temp8 >> 1) & 0x0F); |
| } |
| |
| else { |
| if (IO_RANGE == output_struct->data.address64.resource_type) { |
| output_struct->data.address64.attribute.io.range_attribute = |
| (u16) (temp8 & 0x03); |
| } |
| |
| else { |
| /* BUS_NUMBER_RANGE == Output_struct->Data.Address64.Resource_type */ |
| /* Nothing needs to be filled in */ |
| } |
| } |
| |
| /* |
| * Get Granularity (Bytes 6-13) |
| */ |
| buffer += 1; |
| MOVE_UNALIGNED64_TO_64 (&output_struct->data.address64.granularity, |
| buffer); |
| |
| /* |
| * Get Min_address_range (Bytes 14-21) |
| */ |
| buffer += 8; |
| MOVE_UNALIGNED64_TO_64 (&output_struct->data.address64.min_address_range, |
| buffer); |
| |
| /* |
| * Get Max_address_range (Bytes 22-29) |
| */ |
| buffer += 8; |
| MOVE_UNALIGNED64_TO_64 (&output_struct->data.address64.max_address_range, |
| buffer); |
| |
| /* |
| * Get Address_translation_offset (Bytes 30-37) |
| */ |
| buffer += 8; |
| MOVE_UNALIGNED64_TO_64 (&output_struct->data.address64.address_translation_offset, |
| buffer); |
| |
| /* |
| * Get Address_length (Bytes 38-45) |
| */ |
| buffer += 8; |
| MOVE_UNALIGNED64_TO_64 (&output_struct->data.address64.address_length, |
| buffer); |
| |
| /* |
| * 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. |
| */ |
| if (*bytes_consumed > 46) { |
| /* Dereference the Index */ |
| |
| temp8 = *buffer; |
| output_struct->data.address64.resource_source.index = |
| (u32) temp8; |
| |
| /* Point to the String */ |
| |
| buffer += 1; |
| |
| /* Point the String pointer to the end of this structure */ |
| |
| output_struct->data.address64.resource_source.string_ptr = |
| (NATIVE_CHAR *)((u8 *)output_struct + struct_size); |
| |
| temp_ptr = output_struct->data.address64.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.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 += ROUND_UP_TO_32_bITS (temp8); |
| } |
| |
| else { |
| output_struct->data.address64.resource_source.index = 0x00; |
| output_struct->data.address64.resource_source.string_length = 0; |
| output_struct->data.address64.resource_source.string_ptr = NULL; |
| } |
| |
| /* |
| * Set the Length parameter |
| */ |
| output_struct->length = 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 - u32 pointer that is filled with |
| * the number of bytes of the |
| * Output_buffer used |
| * |
| * 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 ( |
| acpi_resource *linked_list, |
| u8 **output_buffer, |
| u32 *bytes_consumed) |
| { |
| u8 *buffer; |
| u16 *length_field; |
| u8 temp8; |
| NATIVE_CHAR *temp_pointer; |
| |
| |
| FUNCTION_TRACE ("Rs_address64_stream"); |
| |
| |
| buffer = *output_buffer; |
| |
| /* |
| * The descriptor field is static |
| */ |
| *buffer = 0x8A; |
| 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.address64.resource_type & 0x03); |
| |
| *buffer = temp8; |
| buffer += 1; |
| |
| /* |
| * Set the general flags |
| */ |
| temp8 = (u8) (linked_list->data.address64.producer_consumer & 0x01); |
| temp8 |= (linked_list->data.address64.decode & 0x01) << 1; |
| temp8 |= (linked_list->data.address64.min_address_fixed & 0x01) << 2; |
| temp8 |= (linked_list->data.address64.max_address_fixed & 0x01) << 3; |
| |
| *buffer = temp8; |
| buffer += 1; |
| |
| /* |
| * Set the type specific flags |
| */ |
| temp8 = 0; |
| |
| if(MEMORY_RANGE == linked_list->data.address64.resource_type) { |
| temp8 = (u8) |
| (linked_list->data.address64.attribute.memory.read_write_attribute & |
| 0x01); |
| |
| temp8 |= |
| (linked_list->data.address64.attribute.memory.cache_attribute & |
| 0x0F) << 1; |
| } |
| |
| else if (IO_RANGE == linked_list->data.address64.resource_type) { |
| temp8 = (u8) |
| (linked_list->data.address64.attribute.io.range_attribute & |
| 0x03); |
| } |
| |
| *buffer = temp8; |
| buffer += 1; |
| |
| /* |
| * Set the address space granularity |
| */ |
| MOVE_UNALIGNED64_TO_64 (buffer, |
| &linked_list->data.address64.granularity); |
| buffer += 8; |
| |
| /* |
| * Set the address range minimum |
| */ |
| MOVE_UNALIGNED64_TO_64 (buffer, |
| &linked_list->data.address64.min_address_range); |
| buffer += 8; |
| |
| /* |
| * Set the address range maximum |
| */ |
| MOVE_UNALIGNED64_TO_64 (buffer, |
| &linked_list->data.address64.max_address_range); |
| buffer += 8; |
| |
| /* |
| * Set the address translation offset |
| */ |
| MOVE_UNALIGNED64_TO_64 (buffer, |
| &linked_list->data.address64.address_translation_offset); |
| buffer += 8; |
| |
| /* |
| * Set the address length |
| */ |
| MOVE_UNALIGNED64_TO_64 (buffer, |
| &linked_list->data.address64.address_length); |
| buffer += 8; |
| |
| /* |
| * Resource Source Index and Resource Source are optional |
| */ |
| if (0 != linked_list->data.address64.resource_source.string_length) { |
| temp8 = (u8) linked_list->data.address64.resource_source.index; |
| |
| *buffer = temp8; |
| buffer += 1; |
| |
| temp_pointer = (NATIVE_CHAR *) buffer; |
| |
| /* |
| * Copy the string |
| */ |
| STRCPY (temp_pointer, linked_list->data.address64.resource_source.string_ptr); |
| |
| /* |
| * Buffer needs to be set to the length of the sting + one for the |
| * terminating null |
| */ |
| buffer += (STRLEN (linked_list->data.address64.resource_source.string_ptr) + 1); |
| } |
| |
| /* |
| * Return the number of bytes consumed in this operation |
| */ |
| *bytes_consumed = POINTER_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); |
| } |
| |