zircon/system/banjo/ddk.protocol.power/power.banjo

// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

library ddk.protocol.power;

using zx;

enum PowerDomainStatus : uint8 {
    DISABLED = 1;
    ENABLED =  2;
};

[Layout = "ddk-protocol"]
protocol Power {
    /// Enable power domain
    EnablePowerDomain() -> (zx.status s);
    /// Disable power domain
    DisablePowerDomain() -> (zx.status s);
    /// Get Supported Voltage Range
    GetSupportedVoltageRange() -> (zx.status s, uint32 min, uint32 max);
    /// Request a particular voltage
    RequestVoltage(uint32 voltage) -> (zx.status s, uint32 actual_voltage);
    /// Get power domain status
    GetPowerDomainStatus() -> (zx.status s, PowerDomainStatus status);
    /// Write to ctrl register of PMIC
    WritePmicCtrlReg(uint32 reg_addr, uint32 value) -> (zx.status s);
    /// Read ctrl register of PMIC
    ReadPmicCtrlReg(uint32 reg_addr) -> (zx.status s, uint32 value);
};