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htc: implement psc/pm loop

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This commit is contained in:
Michael Scire 2021-02-10 03:14:26 -08:00 committed by SciresM
parent 7485a1968a
commit 79a3f442d6
2 changed files with 113 additions and 2 deletions
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104
libraries/libstratosphere/source/htc/server/htc_power_state_control.cpp Normal file
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@ -0,0 +1,104 @@
/*
* Copyright (c) 2018-2020 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/>.
*/
#include <stratosphere.hpp>
#include "../../htclow/htclow_manager.hpp"
namespace ams::htc::server {
namespace {
constinit htclow::HtclowManager *g_htclow_manager = nullptr;
constexpr const psc::PmModuleId PscModuleDependencies[] = { psc::PmModuleId_Pcie, psc::PmModuleId_Usb };
psc::PmModule g_pm_module;
constinit bool g_is_asleep = false;
constinit bool g_is_suspended = false;
}
void InitializePowerStateMonitor(htclow::impl::DriverType driver_type, htclow::HtclowManager *htclow_manager) {
/* Set the htclow manager. */
g_htclow_manager = htclow_manager;
/* Initialize pm module. */
R_ABORT_UNLESS(g_pm_module.Initialize(psc::PmModuleId_TmaHostIo, PscModuleDependencies, util::size(PscModuleDependencies), os::EventClearMode_AutoClear));
/* We're neither asleep nor suspended. */
g_is_asleep = false;
g_is_suspended = false;
}
void LoopMonitorPowerState() {
/* Get the psc module's event pointer. */
auto *event = g_pm_module.GetEventPointer();
while (true) {
/* Wait for a new power state event. */
event->Wait();
/* Get the power state. */
psc::PmState pm_state;
psc::PmFlagSet pm_flags;
R_ABORT_UNLESS(g_pm_module.GetRequest(std::addressof(pm_state), std::addressof(pm_flags)));
/* Update sleeping state. */
switch (pm_state) {
case psc::PmState_Awake:
if (g_is_asleep) {
g_htclow_manager->NotifyAwake();
g_is_asleep = false;
}
break;
case psc::PmState_ReadyAwaken:
case psc::PmState_ReadySleep:
case psc::PmState_ReadySleepCritical:
case psc::PmState_ReadyAwakenCritical:
if (!g_is_asleep) {
g_htclow_manager->NotifyAsleep();
g_is_asleep = true;
}
break;
default:
break;
}
/* Update suspend state. */
switch (pm_state) {
case psc::PmState_Awake:
case psc::PmState_ReadyAwaken:
if (g_is_suspended) {
g_htclow_manager->Resume();
g_is_suspended = false;
}
break;
case psc::PmState_ReadySleep:
case psc::PmState_ReadySleepCritical:
case psc::PmState_ReadyAwakenCritical:
if (!g_is_suspended) {
g_htclow_manager->Suspend();
g_is_suspended = true;
}
break;
default:
break;
}
/* Acknowledge the pm request. */
R_ABORT_UNLESS(g_pm_module.Acknowledge(pm_state, ResultSuccess()));
}
}
}

11
stratosphere/htc/source/htc_main.cpp
View file

@ -198,6 +198,13 @@ namespace ams::htc {
}
namespace server {
void InitializePowerStateMonitor(htclow::impl::DriverType driver_type, htclow::HtclowManager *htclow_manager);
void LoopMonitorPowerState();
}
}
int main(int argc, char **argv)
@ -246,7 +253,7 @@ int main(int argc, char **argv)
}
/* Initialize psc. */
//htc::server::InitializePowerStateMonitor(driver_type, htclow_manager);
htc::server::InitializePowerStateMonitor(driver_type, htclow_manager);
/* Start all threads. */
os::StartThread(std::addressof(htc_ipc_thread));
@ -256,7 +263,7 @@ int main(int argc, char **argv)
}
/* Loop psc monitor. */
//htc::server::LoopMonitorPowerState();
htc::server::LoopMonitorPowerState();
/* Destroy all threads. */
for (size_t i = 0; i < htc::NumHtcsIpcThreads; ++i) {