1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/acpi/sbshc.h b/drivers/acpi/sbshc.h
new file mode 100644
index 000000000..a57b0762d
--- /dev/null
+++ b/drivers/acpi/sbshc.h
@@ -0,0 +1,33 @@
+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);