diff options
Diffstat (limited to 'drivers/acpi/resources/rsaddr.c')
| -rw-r--r-- | drivers/acpi/resources/rsaddr.c | 745 |
1 files changed, 198 insertions, 547 deletions
diff --git a/drivers/acpi/resources/rsaddr.c b/drivers/acpi/resources/rsaddr.c index 6f48ebf3304..4ac942badbc 100644 --- a/drivers/acpi/resources/rsaddr.c +++ b/drivers/acpi/resources/rsaddr.c @@ -47,683 +47,334 @@ #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); - -static void -acpi_rs_set_address_common(union aml_resource *aml, - struct acpi_resource *resource); - -static u8 -acpi_rs_get_address_common(struct acpi_resource *resource, - union aml_resource *aml); - -/******************************************************************************* - * - * FUNCTION: acpi_rs_decode_general_flags - * - * PARAMETERS: Resource - Address resource data struct - * Flags - Raw AML 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) -{ - ACPI_FUNCTION_ENTRY(); - - return ((u8) - - /* Producer / Consumer - flag bit[0] */ - ((resource->address.producer_consumer & 0x01) | - /* Decode (_DEC) - flag bit[1] */ - ((resource->address.decode & 0x01) << 1) | - /* Min Address Fixed (_MIF) - flag bit[2] */ - ((resource->address.min_address_fixed & 0x01) << 2) | - /* Max Address Fixed (_MAF) - flag bit[3] */ - ((resource->address.max_address_fixed & 0x01) << 3)) - ); -} - /******************************************************************************* * - * FUNCTION: acpi_rs_decode_specific_flags - * - * PARAMETERS: Resource - Address resource data struct - * Flags - Raw AML 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. + * acpi_rs_convert_address16 - All WORD (16-bit) address resources * ******************************************************************************/ +struct acpi_rsconvert_info acpi_rs_convert_address16[5] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS16, + ACPI_RS_SIZE(struct acpi_resource_address16), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address16)}, -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); + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS16, + sizeof(struct aml_resource_address16), + 0}, - /* Memory Attributes (_MEM) - flag bits[2:1] */ + /* Resource Type, General Flags, and Type-Specific Flags */ - 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) -{ - ACPI_FUNCTION_ENTRY(); - - if (resource->address.resource_type == ACPI_MEMORY_RANGE) { - return ((u8) - - /* Write Status (_RW) - flag bit[0] */ - ((resource->address.attribute.memory. - read_write_attribute & 0x01) | - /* Memory Attributes (_MEM) - flag bits[2:1] */ - ((resource->address.attribute.memory. - cache_attribute & 0x03) << 1))); - } else if (resource->address.resource_type == ACPI_IO_RANGE) { - return ((u8) - - /* Ranges (_RNG) - flag bits[1:0] */ - ((resource->address.attribute.io. - range_attribute & 0x03) | - /* Translations (_TTP and _TRS) - flag bits[5:4] */ - ((resource->address.attribute.io. - translation_attribute & 0x03) << 4))); - } - - return (0); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_set_address_common - * - * PARAMETERS: Aml - Pointer to the AML resource descriptor - * Resource - Pointer to the internal resource struct - * - * RETURN: None - * - * DESCRIPTION: Convert common flag fields from a resource descriptor to an - * AML descriptor - * - ******************************************************************************/ - -static void -acpi_rs_set_address_common(union aml_resource *aml, - struct acpi_resource *resource) -{ - ACPI_FUNCTION_ENTRY(); - - /* Set the Resource Type (Memory, Io, bus_number, etc.) */ - - aml->address.resource_type = (u8) resource->data.address.resource_type; - - /* Set the general flags */ - - aml->address.flags = acpi_rs_encode_general_flags(&resource->data); - - /* Set the type-specific flags */ - - aml->address.specific_flags = - acpi_rs_encode_specific_flags(&resource->data); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_get_address_common - * - * PARAMETERS: Resource - Pointer to the internal resource struct - * Aml - Pointer to the AML resource descriptor - * - * RETURN: TRUE if the resource_type field is OK, FALSE otherwise - * - * DESCRIPTION: Convert common flag fields from a raw AML resource descriptor - * to an internal resource descriptor - * - ******************************************************************************/ - -static u8 -acpi_rs_get_address_common(struct acpi_resource *resource, - union aml_resource *aml) -{ - ACPI_FUNCTION_ENTRY(); - - /* Validate resource type */ - - if ((aml->address.resource_type > 2) - && (aml->address.resource_type < 0xC0)) { - return (FALSE); - } - - /* Get the Resource Type (Memory, Io, bus_number, etc.) */ - - resource->data.address.resource_type = aml->address.resource_type; - - /* Get the General Flags */ - - acpi_rs_decode_general_flags(&resource->data, aml->address.flags); - - /* Get the Type-Specific Flags */ - - acpi_rs_decode_specific_flags(&resource->data, - aml->address.specific_flags); - return (TRUE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_get_address16 - * - * PARAMETERS: Aml - Pointer to the AML resource descriptor - * aml_resource_length - Length of the resource from the AML header - * Resource - Where the internal resource is returned - * - * RETURN: Status - * - * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding - * internal resource descriptor, simplifying bitflags and handling - * alignment and endian issues if necessary. - * - ******************************************************************************/ - -acpi_status -acpi_rs_get_address16(union aml_resource * aml, - u16 aml_resource_length, struct acpi_resource * resource) -{ - ACPI_FUNCTION_TRACE("rs_get_address16"); - - /* Get the Resource Type, general flags, and type-specific flags */ - - if (!acpi_rs_get_address_common(resource, aml)) { - return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); - } + {ACPI_RSC_ADDRESS, 0, 0, 0}, /* - * Get the following contiguous fields from the AML descriptor: + * These fields are contiguous in both the source and destination: * Address Granularity * Address Range Minimum * Address Range Maximum * Address Translation Offset * Address Length */ - acpi_rs_move_data(&resource->data.address16.granularity, - &aml->address16.granularity, 5, - ACPI_MOVE_TYPE_16_TO_32); - - /* Get the optional resource_source (index and string) */ - - resource->length = - ACPI_SIZEOF_RESOURCE(struct acpi_resource_address16) + - acpi_rs_get_resource_source(aml_resource_length, - sizeof(struct aml_resource_address16), - &resource->data.address16. - resource_source, aml, NULL); + {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.address16.granularity), + AML_OFFSET(address16.granularity), + 5}, - /* Complete the resource header */ + /* Optional resource_source (Index and String) */ - resource->type = ACPI_RESOURCE_TYPE_ADDRESS16; - return_ACPI_STATUS(AE_OK); -} + {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address16.resource_source), + 0, + sizeof(struct aml_resource_address16)} +}; /******************************************************************************* * - * FUNCTION: acpi_rs_set_address16 - * - * PARAMETERS: Resource - Pointer to the resource descriptor - * Aml - Where the AML descriptor is returned - * - * RETURN: Status - * - * DESCRIPTION: Convert an internal resource descriptor to the corresponding - * external AML resource descriptor. + * acpi_rs_convert_address32 - All DWORD (32-bit) address resources * ******************************************************************************/ -acpi_status -acpi_rs_set_address16(struct acpi_resource *resource, union aml_resource *aml) -{ - acpi_size descriptor_length; +struct acpi_rsconvert_info acpi_rs_convert_address32[5] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS32, + ACPI_RS_SIZE(struct acpi_resource_address32), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address32)}, - ACPI_FUNCTION_TRACE("rs_set_address16"); + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS32, + sizeof(struct aml_resource_address32), + 0}, - /* Set the Resource Type, General Flags, and Type-Specific Flags */ + /* Resource Type, General Flags, and Type-Specific Flags */ - acpi_rs_set_address_common(aml, resource); + {ACPI_RSC_ADDRESS, 0, 0, 0}, /* - * Set the following contiguous fields in the AML descriptor: + * These fields are contiguous in both the source and destination: * Address Granularity * Address Range Minimum * Address Range Maximum * Address Translation Offset * Address Length */ - acpi_rs_move_data(&aml->address16.granularity, - &resource->data.address16.granularity, 5, - ACPI_MOVE_TYPE_32_TO_16); - - /* Resource Source Index and Resource Source are optional */ + {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.address32.granularity), + AML_OFFSET(address32.granularity), + 5}, - descriptor_length = acpi_rs_set_resource_source(aml, - sizeof(struct - aml_resource_address16), - &resource->data. - address16. - resource_source); + /* Optional resource_source (Index and String) */ - /* Complete the AML descriptor header */ - - acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_ADDRESS16, - descriptor_length, aml); - return_ACPI_STATUS(AE_OK); -} + {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address32.resource_source), + 0, + sizeof(struct aml_resource_address32)} +}; /******************************************************************************* * - * FUNCTION: acpi_rs_get_address32 - * - * PARAMETERS: Aml - Pointer to the AML resource descriptor - * aml_resource_length - Length of the resource from the AML header - * Resource - Where the internal resource is returned - * - * RETURN: Status - * - * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding - * internal resource descriptor, simplifying bitflags and handling - * alignment and endian issues if necessary. + * acpi_rs_convert_address64 - All QWORD (64-bit) address resources * ******************************************************************************/ -acpi_status -acpi_rs_get_address32(union aml_resource *aml, - u16 aml_resource_length, struct acpi_resource *resource) -{ +struct acpi_rsconvert_info acpi_rs_convert_address64[5] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS64, + ACPI_RS_SIZE(struct acpi_resource_address64), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address64)}, - ACPI_FUNCTION_TRACE("rs_get_address32"); + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS64, + sizeof(struct aml_resource_address64), + 0}, - /* Get the Resource Type, general flags, and type-specific flags */ + /* Resource Type, General Flags, and Type-Specific Flags */ - if (!acpi_rs_get_address_common(resource, (void *)aml)) { - return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); - } + {ACPI_RSC_ADDRESS, 0, 0, 0}, /* - * Get the following contiguous fields from the AML descriptor: + * These fields are contiguous in both the source and destination: * Address Granularity * Address Range Minimum * Address Range Maximum * Address Translation Offset * Address Length */ - acpi_rs_move_data(&resource->data.address32.granularity, - &aml->address32.granularity, 5, - ACPI_MOVE_TYPE_32_TO_32); + {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.address64.granularity), + AML_OFFSET(address64.granularity), + 5}, - /* Get the optional resource_source (index and string) */ + /* Optional resource_source (Index and String) */ - resource->length = - ACPI_SIZEOF_RESOURCE(struct acpi_resource_address32) + - acpi_rs_get_resource_source(aml_resource_length, - sizeof(struct aml_resource_address32), - &resource->data.address32. - resource_source, aml, NULL); - - /* Complete the resource header */ - - resource->type = ACPI_RESOURCE_TYPE_ADDRESS32; - return_ACPI_STATUS(AE_OK); -} + {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address64.resource_source), + 0, + sizeof(struct aml_resource_address64)} +}; /******************************************************************************* * - * FUNCTION: acpi_rs_set_address32 - * - * PARAMETERS: Resource - Pointer to the resource descriptor - * Aml - Where the AML descriptor is returned - * - * RETURN: Status - * - * DESCRIPTION: Convert an internal resource descriptor to the corresponding - * external AML resource descriptor. + * acpi_rs_convert_ext_address64 - All Extended (64-bit) address resources * ******************************************************************************/ -acpi_status -acpi_rs_set_address32(struct acpi_resource *resource, union aml_resource *aml) -{ - acpi_size descriptor_length; +struct acpi_rsconvert_info acpi_rs_convert_ext_address64[5] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64, + ACPI_RS_SIZE(struct acpi_resource_extended_address64), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_address64)}, + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64, + sizeof(struct aml_resource_extended_address64), + 0}, - ACPI_FUNCTION_TRACE("rs_set_address32"); + /* Resource Type, General Flags, and Type-Specific Flags */ - /* Set the Resource Type, General Flags, and Type-Specific Flags */ + {ACPI_RSC_ADDRESS, 0, 0, 0}, - acpi_rs_set_address_common(aml, resource); + /* Revision ID */ + {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.ext_address64.revision_iD), + AML_OFFSET(ext_address64.revision_iD), + 1}, /* - * Set the following contiguous fields in the AML descriptor: + * These fields are contiguous in both the source and destination: * Address Granularity * Address Range Minimum * Address Range Maximum * Address Translation Offset * Address Length + * Type-Specific Attribute */ - acpi_rs_move_data(&aml->address32.granularity, - &resource->data.address32.granularity, 5, - ACPI_MOVE_TYPE_32_TO_32); - - /* Resource Source Index and Resource Source are optional */ - - descriptor_length = acpi_rs_set_resource_source(aml, - sizeof(struct - aml_resource_address32), - &resource->data. - address32. - resource_source); - - /* Complete the AML descriptor header */ - - acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_ADDRESS32, - descriptor_length, aml); - return_ACPI_STATUS(AE_OK); -} + {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.ext_address64.granularity), + AML_OFFSET(ext_address64.granularity), + 6} +}; /******************************************************************************* * - * FUNCTION: acpi_rs_get_address64 - * - * PARAMETERS: Aml - Pointer to the AML resource descriptor - * aml_resource_length - Length of the resource from the AML header - * Resource - Where the internal resource is returned - * - * RETURN: Status - * - * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding - * internal resource descriptor, simplifying bitflags and handling - * alignment and endian issues if necessary. + * acpi_rs_convert_general_flags - Flags common to all address descriptors * ******************************************************************************/ -acpi_status -acpi_rs_get_address64(union aml_resource *aml, - u16 aml_resource_length, struct acpi_resource *resource) -{ - ACPI_FUNCTION_TRACE("rs_get_address64"); +static struct acpi_rsconvert_info acpi_rs_convert_general_flags[6] = { + {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.flags), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_general_flags)}, - /* Get the Resource Type, general Flags, and type-specific Flags */ + /* Resource Type (Memory, Io, bus_number, etc.) */ - if (!acpi_rs_get_address_common(resource, aml)) { - return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); - } + {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.address.resource_type), + AML_OFFSET(address.resource_type), + 1}, - /* - * Get the following contiguous fields from the AML descriptor: - * Address Granularity - * Address Range Minimum - * Address Range Maximum - * Address Translation Offset - * Address Length - */ - acpi_rs_move_data(&resource->data.address64.granularity, - &aml->address64.granularity, 5, - ACPI_MOVE_TYPE_64_TO_64); + /* General Flags - Consume, Decode, min_fixed, max_fixed */ - /* Get the optional resource_source (index and string) */ + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.producer_consumer), + AML_OFFSET(address.flags), + 0}, - resource->length = - ACPI_SIZEOF_RESOURCE(struct acpi_resource_address64) + - acpi_rs_get_resource_source(aml_resource_length, - sizeof(struct aml_resource_address64), - &resource->data.address64. - resource_source, aml, NULL); + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.decode), + AML_OFFSET(address.flags), + 1}, - /* Complete the resource header */ + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.min_address_fixed), + AML_OFFSET(address.flags), + 2}, - resource->type = ACPI_RESOURCE_TYPE_ADDRESS64; - return_ACPI_STATUS(AE_OK); -} + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.max_address_fixed), + AML_OFFSET(address.flags), + 3} +}; /******************************************************************************* * - * FUNCTION: acpi_rs_set_address64 - * - * PARAMETERS: Resource - Pointer to the resource descriptor - * Aml - Where the AML descriptor is returned - * - * RETURN: Status - * - * DESCRIPTION: Convert an internal resource descriptor to the corresponding - * external AML resource descriptor. + * acpi_rs_convert_mem_flags - Flags common to Memory address descriptors * ******************************************************************************/ -acpi_status -acpi_rs_set_address64(struct acpi_resource *resource, union aml_resource *aml) -{ - acpi_size descriptor_length; +static struct acpi_rsconvert_info acpi_rs_convert_mem_flags[5] = { + {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_mem_flags)}, - ACPI_FUNCTION_TRACE("rs_set_address64"); + /* Memory-specific flags */ - /* Set the Resource Type, General Flags, and Type-Specific Flags */ + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.write_protect), + AML_OFFSET(address.specific_flags), + 0}, - acpi_rs_set_address_common(aml, resource); + {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.caching), + AML_OFFSET(address.specific_flags), + 1}, - /* - * Set the following contiguous fields in the AML descriptor: - * Address Granularity - * Address Range Minimum - * Address Range Maximum - * Address Translation Offset - * Address Length - */ - acpi_rs_move_data(&aml->address64.granularity, - &resource->data.address64.granularity, 5, - ACPI_MOVE_TYPE_64_TO_64); + {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.range_type), + AML_OFFSET(address.specific_flags), + 3}, + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.translation), + AML_OFFSET(address.specific_flags), + 5} +}; + +/******************************************************************************* + * + * acpi_rs_convert_io_flags - Flags common to I/O address descriptors + * + ******************************************************************************/ - /* Resource Source Index and Resource Source are optional */ +static struct acpi_rsconvert_info acpi_rs_convert_io_flags[4] = { + {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_io_flags)}, - descriptor_length = acpi_rs_set_resource_source(aml, - sizeof(struct - aml_resource_address64), - &resource->data. - address64. - resource_source); + /* I/O-specific flags */ - /* Complete the AML descriptor header */ + {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.io.range_type), + AML_OFFSET(address.specific_flags), + 0}, - acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_ADDRESS64, - descriptor_length, aml); - return_ACPI_STATUS(AE_OK); -} + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.io.translation), + AML_OFFSET(address.specific_flags), + 4}, + + {ACPI_RSC_1BITFLAG, + ACPI_RS_OFFSET(data.address.info.io.translation_type), + AML_OFFSET(address.specific_flags), + 5} +}; /******************************************************************************* * - * FUNCTION: acpi_rs_get_ext_address64 + * FUNCTION: acpi_rs_get_address_common * - * PARAMETERS: Aml - Pointer to the AML resource descriptor - * aml_resource_length - Length of the resource from the AML header - * Resource - Where the internal resource is returned + * PARAMETERS: Resource - Pointer to the internal resource struct + * Aml - Pointer to the AML resource descriptor * - * RETURN: Status + * RETURN: TRUE if the resource_type field is OK, FALSE otherwise * - * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding - * internal resource descriptor, simplifying bitflags and handling - * alignment and endian issues if necessary. + * DESCRIPTION: Convert common flag fields from a raw AML resource descriptor + * to an internal resource descriptor * ******************************************************************************/ -acpi_status -acpi_rs_get_ext_address64(union aml_resource *aml, - u16 aml_resource_length, - struct acpi_resource *resource) +u8 +acpi_rs_get_address_common(struct acpi_resource *resource, + union aml_resource *aml) { + ACPI_FUNCTION_ENTRY(); - ACPI_FUNCTION_TRACE("rs_get_ext_address64"); - - /* Get the Resource Type, general flags, and type-specific flags */ + /* Validate the Resource Type */ - if (!acpi_rs_get_address_common(resource, aml)) { - return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); + if ((aml->address.resource_type > 2) + && (aml->address.resource_type < 0xC0)) { + return (FALSE); } - /* - * Get and validate the Revision ID - * Note: Only one revision ID is currently supported - */ - resource->data.ext_address64.revision_iD = - aml->ext_address64.revision_iD; - if (aml->ext_address64.revision_iD != - AML_RESOURCE_EXTENDED_ADDRESS_REVISION) { - return_ACPI_STATUS(AE_SUPPORT); - } + /* Get the Resource Type and General Flags */ - /* - * Get the following contiguous fields from the AML descriptor: - * Address Granularity - * Address Range Minimum - * Address Range Maximum - * Address Translation Offset - * Address Length - * Type-Specific Attribute - */ - acpi_rs_move_data(&resource->data.ext_address64.granularity, - &aml->ext_address64.granularity, 6, - ACPI_MOVE_TYPE_64_TO_64); + (void)acpi_rs_convert_aml_to_resource(resource, aml, + acpi_rs_convert_general_flags); + + /* Get the Type-Specific Flags (Memory and I/O descriptors only) */ - /* Complete the resource header */ + if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) { + (void)acpi_rs_convert_aml_to_resource(resource, aml, + acpi_rs_convert_mem_flags); + } else if (resource->data.address.resource_type == ACPI_IO_RANGE) { + (void)acpi_rs_convert_aml_to_resource(resource, aml, + acpi_rs_convert_io_flags); + } else { + /* Generic resource type, just grab the type_specific byte */ - resource->type = ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64; - resource->length = - ACPI_SIZEOF_RESOURCE(struct acpi_resource_extended_address64); - return_ACPI_STATUS(AE_OK); + resource->data.address.info.type_specific = + aml->address.specific_flags; + } + + return (TRUE); } /******************************************************************************* * - * FUNCTION: acpi_rs_set_ext_address64 + * FUNCTION: acpi_rs_set_address_common * - * PARAMETERS: Resource - Pointer to the resource descriptor - * Aml - Where the AML descriptor is returned + * PARAMETERS: Aml - Pointer to the AML resource descriptor + * Resource - Pointer to the internal resource struct * - * RETURN: Status + * RETURN: None * - * DESCRIPTION: Convert an internal resource descriptor to the corresponding - * external AML resource descriptor. + * DESCRIPTION: Convert common flag fields from a resource descriptor to an + * AML descriptor * ******************************************************************************/ -acpi_status -acpi_rs_set_ext_address64(struct acpi_resource *resource, - union aml_resource *aml) +void +acpi_rs_set_address_common(union aml_resource *aml, + struct acpi_resource *resource) { - ACPI_FUNCTION_TRACE("rs_set_ext_address64"); + ACPI_FUNCTION_ENTRY(); - /* Set the Resource Type, General Flags, and Type-Specific Flags */ + /* Set the Resource Type and General Flags */ - acpi_rs_set_address_common(aml, resource); + (void)acpi_rs_convert_resource_to_aml(resource, aml, + acpi_rs_convert_general_flags); - /* Only one Revision ID is currently supported */ + /* Set the Type-Specific Flags (Memory and I/O descriptors only) */ - aml->ext_address64.revision_iD = AML_RESOURCE_EXTENDED_ADDRESS_REVISION; - aml->ext_address64.reserved = 0; + if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) { + (void)acpi_rs_convert_resource_to_aml(resource, aml, + acpi_rs_convert_mem_flags); + } else if (resource->data.address.resource_type == ACPI_IO_RANGE) { + (void)acpi_rs_convert_resource_to_aml(resource, aml, + acpi_rs_convert_io_flags); + } else { + /* Generic resource type, just copy the type_specific byte */ - /* - * Set the following contiguous fields in the AML descriptor: - * Address Granularity - * Address Range Minimum - * Address Range Maximum - * Address Translation Offset - * Address Length - * Type-Specific Attribute - */ - acpi_rs_move_data(&aml->ext_address64.granularity, - &resource->data.address64.granularity, 6, - ACPI_MOVE_TYPE_64_TO_64); - - /* Complete the AML descriptor header */ - - acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64, - sizeof(struct - aml_resource_extended_address64), - aml); - return_ACPI_STATUS(AE_OK); + aml->address.specific_flags = + resource->data.address.info.type_specific; + } } |