2020-05-13 18:56:07 +01:00
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/*
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2021-10-04 20:59:10 +01:00
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* Copyright (c) Atmosphère-NX
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2020-05-13 18:56:07 +01:00
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <exosphere.hpp>
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namespace ams::charger {
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namespace {
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/* https://www.ti.com/lit/ds/symlink/bq24193.pdf */
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constexpr inline int I2cAddressBq24193 = 0x6B;
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constexpr inline int Bq24193RegisterInputSourceControl = 0x00;
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/* 8.5.1.1 EN_HIZ */
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enum EnHiZ : u8 {
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EnHiZ_Disable = (0u << 7),
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EnHiZ_Enable = (1u << 7),
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EnHiZ_Mask = (1u << 7),
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};
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}
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bool IsHiZMode() {
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return (i2c::QueryByte(i2c::Port_1, I2cAddressBq24193, Bq24193RegisterInputSourceControl) & EnHiZ_Mask) == EnHiZ_Enable;
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}
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void EnterHiZMode() {
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u8 ctrl = i2c::QueryByte(i2c::Port_1, I2cAddressBq24193, Bq24193RegisterInputSourceControl);
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ctrl &= ~EnHiZ_Mask;
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ctrl |= EnHiZ_Enable;
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i2c::SendByte(i2c::Port_1, I2cAddressBq24193, Bq24193RegisterInputSourceControl, ctrl);
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}
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void ExitHiZMode() {
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u8 ctrl = i2c::QueryByte(i2c::Port_1, I2cAddressBq24193, Bq24193RegisterInputSourceControl);
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ctrl &= ~EnHiZ_Mask;
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ctrl |= EnHiZ_Disable;
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i2c::SendByte(i2c::Port_1, I2cAddressBq24193, Bq24193RegisterInputSourceControl, ctrl);
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}
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}
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