boot: implement bc24193 driver, part of CheckBatteryCharge

stratosphere/boot/source/boot_charger_driver.hpp

@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2018-2019 Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+#include <switch.h>
+#include <stratosphere.hpp>
+
+#include "i2c_driver/i2c_api.hpp"
+#include "boot_functions.hpp"
+#include "boot_bq24193_charger.hpp"
+
+class ChargerDriver {
+    private:
+        static constexpr u32 GpioPadName_Bq24193Charger = 0xA;
+    private:
+        I2cSessionImpl i2c_session;
+    public:
+        ChargerDriver() {
+            I2cDriver::Initialize();
+            I2cDriver::OpenSession(&this->i2c_session, I2cDevice_Max17050);
+
+            Boot::GpioSetDirection(GpioPadName_Bq24193Charger, GpioDirection_Output);
+        }
+
+        ~ChargerDriver() {
+            I2cDriver::CloseSession(this->i2c_session);
+            I2cDriver::Finalize();
+        }
+    private:
+        Result Read(u8 addr, u8 *out_data);
+        Result Write(u8 addr, u8 val);
+        Result ReadWrite(u8 addr, u8 mask, u8 val);
+
+        Result SetInputCurrentLimit(InputCurrentLimit current);
+        Result SetForce20PercentChargeCurrent(bool force);
+        Result SetPreChargeCurrentLimit(u32 current);
+        Result SetTerminationCurrentLimit(u32 current);
+        Result SetMinimumSystemVoltageLimit(u32 voltage);
+        Result SetWatchdogTimerSetting(WatchdogTimerSetting setting);
+        Result SetChargingSafetyTimerEnabled(bool enabled);
+        Result ResetWatchdogTimer();
+        Result SetBoostModeCurrentLimit(BoostModeCurrentLimit current);
+        Result SetHiZEnabled(bool enabled);
+
+    public:
+        Result Initialize();
+        Result Initialize(bool set_input_current_limit);
+        Result SetChargeVoltageLimit(u32 voltage);
+        Result SetFastChargeCurrentLimit(u32 current);
+        Result SetChargeEnabled(bool enabled);
+        Result SetChargerConfiguration(ChargerConfiguration config);
+        Result GetInputCurrentLimit(InputCurrentLimit *out);
+        Result GetChargeVoltageLimit(u32 *out);
+};