drivers/acpi/sbshc.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 struct acpi_smb_hc;
0003 enum acpi_smb_protocol {
0004     SMBUS_WRITE_QUICK = 2,
0005     SMBUS_READ_QUICK = 3,
0006     SMBUS_SEND_BYTE = 4,
0007     SMBUS_RECEIVE_BYTE = 5,
0008     SMBUS_WRITE_BYTE = 6,
0009     SMBUS_READ_BYTE = 7,
0010     SMBUS_WRITE_WORD  = 8,
0011     SMBUS_READ_WORD  = 9,
0012     SMBUS_WRITE_BLOCK = 0xa,
0013     SMBUS_READ_BLOCK = 0xb,
0014     SMBUS_PROCESS_CALL = 0xc,
0015     SMBUS_BLOCK_PROCESS_CALL = 0xd,
0016 };
0017
0018 enum acpi_sbs_device_addr {
0019     ACPI_SBS_CHARGER = 0x9,
0020     ACPI_SBS_MANAGER = 0xa,
0021     ACPI_SBS_BATTERY = 0xb,
0022 };
0023
0024 typedef void (*smbus_alarm_callback)(void *context);
0025
0026 extern int acpi_smbus_read(struct acpi_smb_hc *hc, u8 protocol, u8 address,
0027         u8 command, u8 *data);
0028 extern int acpi_smbus_write(struct acpi_smb_hc *hc, u8 protocol, u8 slave_address,
0029         u8 command, u8 *data, u8 length);
0030 extern int acpi_smbus_register_callback(struct acpi_smb_hc *hc,
0031         smbus_alarm_callback callback, void *context);
0032 extern int acpi_smbus_unregister_callback(struct acpi_smb_hc *hc);