mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-10 06:01:52 +00:00
95 lines
3.3 KiB
C++
95 lines
3.3 KiB
C++
/*
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* Copyright (c) Atmosphère-NX
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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 <stratosphere.hpp>
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#include "fatal_task_sound.hpp"
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namespace ams::fatal::srv {
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namespace {
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/* Task definition. */
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class StopSoundTask : public ITaskWithDefaultStack {
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private:
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void StopSound();
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public:
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virtual Result Run() override;
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virtual const char *GetName() const override {
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return "SoundTask";
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}
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};
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/* Task global. */
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StopSoundTask g_stop_sound_task;
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/* Task implementation. */
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void StopSoundTask::StopSound() {
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/* Talk to the ALC5639 over I2C, and disable audio output. */
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{
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I2cSession audio;
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if (R_SUCCEEDED(i2cOpenSession(&audio, I2cDevice_Alc5639))) {
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ON_SCOPE_EXIT { i2csessionClose(&audio); };
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struct {
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u8 reg;
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u16 val;
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} __attribute__((packed)) cmd;
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static_assert(sizeof(cmd) == 3, "I2C command definition!");
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cmd.reg = 0x01;
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cmd.val = 0xC8C8;
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i2csessionSendAuto(&audio, &cmd, sizeof(cmd), I2cTransactionOption_All);
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cmd.reg = 0x02;
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cmd.val = 0xC8C8;
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i2csessionSendAuto(&audio, &cmd, sizeof(cmd), I2cTransactionOption_All);
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for (u8 reg = 97; reg <= 102; reg++) {
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cmd.reg = reg;
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cmd.val = 0;
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i2csessionSendAuto(&audio, &cmd, sizeof(cmd), I2cTransactionOption_All);
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}
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}
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}
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/* Talk to the ALC5639 over GPIO, and disable audio output */
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{
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gpio::GpioPadSession audio;
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if (R_SUCCEEDED(gpio::OpenSession(std::addressof(audio), gpio::DeviceCode_CodecLdoEnTemp))) {
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ON_SCOPE_EXIT { gpio::CloseSession(std::addressof(audio)); };
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/* Set direction output, sleep 200 ms so it can take effect. */
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gpio::SetDirection(std::addressof(audio), gpio::Direction_Output);
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os::SleepThread(TimeSpan::FromMilliSeconds(200));
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/* Pull audio codec low. */
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gpio::SetValue(std::addressof(audio), gpio::GpioValue_Low);
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}
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}
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}
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Result StopSoundTask::Run() {
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StopSound();
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return ResultSuccess();
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}
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}
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ITask *GetStopSoundTask(const ThrowContext *ctx) {
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g_stop_sound_task.Initialize(ctx);
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return &g_stop_sound_task;
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}
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}
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