1 /* SPDX-License-Identifier: GPL-2.0 */
3 enum acpi_smb_protocol {
7 SMBUS_RECEIVE_BYTE = 5,
12 SMBUS_WRITE_BLOCK = 0xa,
13 SMBUS_READ_BLOCK = 0xb,
14 SMBUS_PROCESS_CALL = 0xc,
15 SMBUS_BLOCK_PROCESS_CALL = 0xd,
18 enum acpi_sbs_device_addr {
19 ACPI_SBS_CHARGER = 0x9,
20 ACPI_SBS_MANAGER = 0xa,
21 ACPI_SBS_BATTERY = 0xb,
24 typedef void (*smbus_alarm_callback)(void *context);
26 extern int acpi_smbus_read(struct acpi_smb_hc *hc, u8 protocol, u8 address,
27 u8 command, u8 * data);
28 extern int acpi_smbus_write(struct acpi_smb_hc *hc, u8 protocol, u8 slave_address,
29 u8 command, u8 * data, u8 length);
30 extern int acpi_smbus_register_callback(struct acpi_smb_hc *hc,
31 smbus_alarm_callback callback, void *context);
32 extern int acpi_smbus_unregister_callback(struct acpi_smb_hc *hc);