| /* SPDX-License-Identifier: GPL-2.0 */ |
| struct acpi_smb_hc; |
| enum acpi_smb_protocol { |
| SMBUS_WRITE_QUICK = 2, |
| SMBUS_READ_QUICK = 3, |
| SMBUS_SEND_BYTE = 4, |
| SMBUS_RECEIVE_BYTE = 5, |
| SMBUS_WRITE_BYTE = 6, |
| SMBUS_READ_BYTE = 7, |
| SMBUS_WRITE_WORD = 8, |
| SMBUS_READ_WORD = 9, |
| SMBUS_WRITE_BLOCK = 0xa, |
| SMBUS_READ_BLOCK = 0xb, |
| SMBUS_PROCESS_CALL = 0xc, |
| SMBUS_BLOCK_PROCESS_CALL = 0xd, |
| }; |
| |
| static const u8 SMBUS_PEC = 0x80; |
| |
| enum acpi_sbs_device_addr { |
| ACPI_SBS_CHARGER = 0x9, |
| ACPI_SBS_MANAGER = 0xa, |
| ACPI_SBS_BATTERY = 0xb, |
| }; |
| |
| typedef void (*smbus_alarm_callback)(void *context); |
| |
| extern int acpi_smbus_read(struct acpi_smb_hc *hc, u8 protocol, u8 address, |
| u8 command, u8 * data); |
| extern int acpi_smbus_write(struct acpi_smb_hc *hc, u8 protocol, u8 slave_address, |
| u8 command, u8 * data, u8 length); |
| extern int acpi_smbus_register_callback(struct acpi_smb_hc *hc, |
| smbus_alarm_callback callback, void *context); |
| extern int acpi_smbus_unregister_callback(struct acpi_smb_hc *hc); |