/* * Copyright (c) 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 . */ #include namespace ams::charger { namespace { /* https://www.ti.com/lit/ds/symlink/bq24193.pdf */ constexpr inline int I2cAddressBq24193 = 0x6B; constexpr inline int Bq24193RegisterInputSourceControl = 0x00; /* 8.5.1.1 EN_HIZ */ enum EnHiZ : u8 { EnHiZ_Disable = (0u << 7), EnHiZ_Enable = (1u << 7), EnHiZ_Mask = (1u << 7), }; } bool IsHiZMode() { return (i2c::QueryByte(i2c::Port_1, I2cAddressBq24193, Bq24193RegisterInputSourceControl) & EnHiZ_Mask) == EnHiZ_Enable; } void EnterHiZMode() { u8 ctrl = i2c::QueryByte(i2c::Port_1, I2cAddressBq24193, Bq24193RegisterInputSourceControl); ctrl &= ~EnHiZ_Mask; ctrl |= EnHiZ_Enable; i2c::SendByte(i2c::Port_1, I2cAddressBq24193, Bq24193RegisterInputSourceControl, ctrl); } void ExitHiZMode() { u8 ctrl = i2c::QueryByte(i2c::Port_1, I2cAddressBq24193, Bq24193RegisterInputSourceControl); ctrl &= ~EnHiZ_Mask; ctrl |= EnHiZ_Disable; i2c::SendByte(i2c::Port_1, I2cAddressBq24193, Bq24193RegisterInputSourceControl, ctrl); } }