boot: implement I2cBusAccessor

stratosphere/boot/source/i2c_driver/boot_pcv.hpp

@@ -0,0 +1,33 @@
+/*
+ * 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>
+
+/* pcv isn't alive at the time boot runs, but nn::i2c::driver needs nn::pcv. */
+/* These are the overrides N puts in boot. */
+
+class Pcv {
+    public:
+        static void Initialize();
+        static void Finalize();
+        static Result SetClockRate(PcvModule module, u32 hz);
+        static Result SetClockEnabled(PcvModule module, bool enabled);
+        static Result SetVoltageEnabled(u32 domain, bool enabled);
+        static Result SetVoltageValue(u32 domain, u32 voltage);
+        static Result SetReset(PcvModule module, bool reset);
+};