1 struct acpi_smb_hc; 2 enum acpi_smb_protocol { 3 SMBUS_WRITE_QUICK = 2, 4 SMBUS_READ_QUICK = 3, 5 SMBUS_SEND_BYTE = 4, 6 SMBUS_RECEIVE_BYTE = 5, 7 SMBUS_WRITE_BYTE = 6, 8 SMBUS_READ_BYTE = 7, 9 SMBUS_WRITE_WORD = 8, 10 SMBUS_READ_WORD = 9, 11 SMBUS_WRITE_BLOCK = 0xa, 12 SMBUS_READ_BLOCK = 0xb, 13 SMBUS_PROCESS_CALL = 0xc, 14 SMBUS_BLOCK_PROCESS_CALL = 0xd, 15 }; 16 17 static const u8 SMBUS_PEC = 0x80; 18 19 enum acpi_sbs_device_addr { 20 ACPI_SBS_CHARGER = 0x9, 21 ACPI_SBS_MANAGER = 0xa, 22 ACPI_SBS_BATTERY = 0xb, 23 }; 24 25 typedef void (*smbus_alarm_callback)(void *context); 26 27 extern int acpi_smbus_read(struct acpi_smb_hc *hc, u8 protocol, u8 address, 28 u8 command, u8 * data); 29 extern int acpi_smbus_write(struct acpi_smb_hc *hc, u8 protocol, u8 slave_address, 30 u8 command, u8 * data, u8 length); 31 extern int acpi_smbus_register_callback(struct acpi_smb_hc *hc, 32 smbus_alarm_callback callback, void *context); 33 extern int acpi_smbus_unregister_callback(struct acpi_smb_hc *hc); 34