diff options
Diffstat (limited to 'include/acpi/acconfig.h')
| -rw-r--r-- | include/acpi/acconfig.h | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/include/acpi/acconfig.h b/include/acpi/acconfig.h index 0f875ae68c68..53c088247d36 100644 --- a/include/acpi/acconfig.h +++ b/include/acpi/acconfig.h @@ -173,12 +173,20 @@ #define ACPI_RSDP_CHECKSUM_LENGTH 20 #define ACPI_RSDP_XCHECKSUM_LENGTH 36 -/* SMBus, GSBus and IPMI bidirectional buffer size */ +/* + * SMBus, GSBus and IPMI buffer sizes. All have a 2-byte header, + * containing both Status and Length. + */ +#define ACPI_SERIAL_HEADER_SIZE 2 /* Common for below. Status and Length fields */ + +#define ACPI_SMBUS_DATA_SIZE 32 +#define ACPI_SMBUS_BUFFER_SIZE ACPI_SERIAL_HEADER_SIZE + ACPI_SMBUS_DATA_SIZE + +#define ACPI_IPMI_DATA_SIZE 64 +#define ACPI_IPMI_BUFFER_SIZE ACPI_SERIAL_HEADER_SIZE + ACPI_IPMI_DATA_SIZE -#define ACPI_SMBUS_BUFFER_SIZE 34 -#define ACPI_IPMI_BUFFER_SIZE 66 -#define ACPI_GSBUS_BUFFER_SIZE 34 /* Not clear if this is needed */ -#define ACPI_MAX_GSBUS_BUFFER_SIZE 255 /* Worst-case bidirectional buffer */ +#define ACPI_MAX_GSBUS_DATA_SIZE 255 +#define ACPI_MAX_GSBUS_BUFFER_SIZE ACPI_SERIAL_HEADER_SIZE + ACPI_MAX_GSBUS_DATA_SIZE /* _sx_d and _sx_w control methods */ |