1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 291087dfaSAlexey Starikovskiy struct acpi_smb_hc; 391087dfaSAlexey Starikovskiy enum acpi_smb_protocol { 491087dfaSAlexey Starikovskiy SMBUS_WRITE_QUICK = 2, 591087dfaSAlexey Starikovskiy SMBUS_READ_QUICK = 3, 691087dfaSAlexey Starikovskiy SMBUS_SEND_BYTE = 4, 791087dfaSAlexey Starikovskiy SMBUS_RECEIVE_BYTE = 5, 891087dfaSAlexey Starikovskiy SMBUS_WRITE_BYTE = 6, 991087dfaSAlexey Starikovskiy SMBUS_READ_BYTE = 7, 1091087dfaSAlexey Starikovskiy SMBUS_WRITE_WORD = 8, 1191087dfaSAlexey Starikovskiy SMBUS_READ_WORD = 9, 1291087dfaSAlexey Starikovskiy SMBUS_WRITE_BLOCK = 0xa, 1391087dfaSAlexey Starikovskiy SMBUS_READ_BLOCK = 0xb, 1491087dfaSAlexey Starikovskiy SMBUS_PROCESS_CALL = 0xc, 1591087dfaSAlexey Starikovskiy SMBUS_BLOCK_PROCESS_CALL = 0xd, 1691087dfaSAlexey Starikovskiy }; 1791087dfaSAlexey Starikovskiy 18c2d00f2dSAlexey Starikovskiy enum acpi_sbs_device_addr { 19c2d00f2dSAlexey Starikovskiy ACPI_SBS_CHARGER = 0x9, 20c2d00f2dSAlexey Starikovskiy ACPI_SBS_MANAGER = 0xa, 21c2d00f2dSAlexey Starikovskiy ACPI_SBS_BATTERY = 0xb, 22c2d00f2dSAlexey Starikovskiy }; 23c2d00f2dSAlexey Starikovskiy 2491087dfaSAlexey Starikovskiy typedef void (*smbus_alarm_callback)(void *context); 2591087dfaSAlexey Starikovskiy 2691087dfaSAlexey Starikovskiy extern int acpi_smbus_read(struct acpi_smb_hc *hc, u8 protocol, u8 address, 2791087dfaSAlexey Starikovskiy u8 command, u8 *data); 2891087dfaSAlexey Starikovskiy extern int acpi_smbus_write(struct acpi_smb_hc *hc, u8 protocol, u8 slave_address, 2991087dfaSAlexey Starikovskiy u8 command, u8 *data, u8 length); 3091087dfaSAlexey Starikovskiy extern int acpi_smbus_register_callback(struct acpi_smb_hc *hc, 3191087dfaSAlexey Starikovskiy smbus_alarm_callback callback, void *context); 3291087dfaSAlexey Starikovskiy extern int acpi_smbus_unregister_callback(struct acpi_smb_hc *hc); 33