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			96 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			96 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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|  * Copyright (c) 2018-2020 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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| 
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| namespace ams::fatal::srv {
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| 
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|     namespace {
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| 
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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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| 
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|         /* Task global. */
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|         StopSoundTask g_stop_sound_task;
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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|     }
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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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| }
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