blob: a57b0762dd7f4651e9adcc3a99b5e5d38dc5f71e [file] [log] [blame]
Alexey Starikovskiy91087df2007-09-26 19:43:28 +04001struct acpi_smb_hc;
2enum 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
17static const u8 SMBUS_PEC = 0x80;
18
Alexey Starikovskiyc2d00f22007-12-08 13:02:40 +030019enum acpi_sbs_device_addr {
20 ACPI_SBS_CHARGER = 0x9,
21 ACPI_SBS_MANAGER = 0xa,
22 ACPI_SBS_BATTERY = 0xb,
23};
24
Alexey Starikovskiy91087df2007-09-26 19:43:28 +040025typedef void (*smbus_alarm_callback)(void *context);
26
27extern int acpi_smbus_read(struct acpi_smb_hc *hc, u8 protocol, u8 address,
28 u8 command, u8 * data);
29extern int acpi_smbus_write(struct acpi_smb_hc *hc, u8 protocol, u8 slave_address,
30 u8 command, u8 * data, u8 length);
31extern int acpi_smbus_register_callback(struct acpi_smb_hc *hc,
32 smbus_alarm_callback callback, void *context);
33extern int acpi_smbus_unregister_callback(struct acpi_smb_hc *hc);