diff options
Diffstat (limited to 'include/acpi.h')
| -rw-r--r-- | include/acpi.h | 79 |
1 files changed, 76 insertions, 3 deletions
diff --git a/include/acpi.h b/include/acpi.h index b8e73b35df..0756f94501 100644 --- a/include/acpi.h +++ b/include/acpi.h @@ -9,6 +9,79 @@ #include <linux/string.h> #include <linux/types.h> #include <driver.h> +#include <efi/efi-init.h> + +/* Names within the namespace are 4 bytes long */ + +#define ACPI_NAMESEG_SIZE 4 /* Fixed by ACPI spec */ +#define ACPI_PATH_SEGMENT_LENGTH 5 /* 4 chars for name + 1 char for separator */ +#define ACPI_PATH_SEPARATOR '.' + +/* Sizes for ACPI table headers */ + +#define ACPI_OEM_ID_SIZE 6 +#define ACPI_OEM_TABLE_ID_SIZE 8 + +/* + * Algorithm to obtain access bit or byte width. + * Can be used with access_width of struct acpi_generic_address and access_size of + * struct acpi_resource_generic_register. + */ +#define ACPI_ACCESS_BIT_WIDTH(size) (1 << ((size) + 2)) +#define ACPI_ACCESS_BYTE_WIDTH(size) (1 << ((size) - 1)) + +/* Address Space (Operation Region) Types */ + +typedef u8 acpi_adr_space_type; +#define ACPI_ADR_SPACE_SYSTEM_MEMORY (acpi_adr_space_type) 0 +#define ACPI_ADR_SPACE_SYSTEM_IO (acpi_adr_space_type) 1 +#define ACPI_ADR_SPACE_PCI_CONFIG (acpi_adr_space_type) 2 +#define ACPI_ADR_SPACE_EC (acpi_adr_space_type) 3 +#define ACPI_ADR_SPACE_SMBUS (acpi_adr_space_type) 4 +#define ACPI_ADR_SPACE_CMOS (acpi_adr_space_type) 5 +#define ACPI_ADR_SPACE_PCI_BAR_TARGET (acpi_adr_space_type) 6 +#define ACPI_ADR_SPACE_IPMI (acpi_adr_space_type) 7 +#define ACPI_ADR_SPACE_GPIO (acpi_adr_space_type) 8 +#define ACPI_ADR_SPACE_GSBUS (acpi_adr_space_type) 9 +#define ACPI_ADR_SPACE_PLATFORM_COMM (acpi_adr_space_type) 10 +#define ACPI_ADR_SPACE_PLATFORM_RT (acpi_adr_space_type) 11 + +/******************************************************************************* + * + * Master ACPI Table Header. This common header is used by all ACPI tables + * except the RSDP and FACS. + * + ******************************************************************************/ + +struct __packed acpi_table_header { + char signature[ACPI_NAMESEG_SIZE]; /* ASCII table signature */ + u32 length; /* Length of table in bytes, including this header */ + u8 revision; /* ACPI Specification minor version number */ + u8 checksum; /* To make sum of entire table == 0 */ + char oem_id[ACPI_OEM_ID_SIZE]; /* ASCII OEM identification */ + char oem_table_id[ACPI_OEM_TABLE_ID_SIZE]; /* ASCII OEM table identification */ + u32 oem_revision; /* OEM revision number */ + char asl_compiler_id[ACPI_NAMESEG_SIZE]; /* ASCII ASL compiler vendor ID */ + u32 asl_compiler_revision; /* ASL compiler version */ +}; + +/******************************************************************************* + * + * GAS - Generic Address Structure (ACPI 2.0+) + * + * Note: Since this structure is used in the ACPI tables, it is byte aligned. + * If misaligned access is not supported by the hardware, accesses to the + * 64-bit Address field must be performed with care. + * + ******************************************************************************/ + +struct __packed acpi_generic_address { + u8 space_id; /* Address space where struct or register exists */ + u8 bit_width; /* Size in bits of given register */ + u8 bit_offset; /* Bit offset within the register */ + u8 access_width; /* Minimum Access size (ACPI 3.0) */ + u64 address; /* 64-bit address of struct or register */ +}; typedef char acpi_sig_t[4]; @@ -46,19 +119,19 @@ struct __packed acpi_rsdt { /* system description table header */ }; struct acpi_driver { - struct driver_d driver; + struct driver driver; acpi_sig_t signature; }; extern struct bus_type acpi_bus; -static inline struct acpi_driver *to_acpi_driver(struct driver_d *drv) +static inline struct acpi_driver *to_acpi_driver(struct driver *drv) { return container_of(drv, struct acpi_driver, driver); } #define device_acpi_driver(drv) \ - register_driver_macro(device, acpi, drv) + register_efi_driver_macro(device, acpi, drv) static inline int acpi_driver_register(struct acpi_driver *acpidrv) { |