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Add feature to set PWM values

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Simon
2022-07-29 00:22:23 +02:00
parent 6763dd9e3c
commit d6f0d9650c
3 changed files with 42 additions and 2 deletions
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3
app/include/pwm.h
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@@ -3,6 +3,7 @@
#include <string> #include <string>
#include <unordered_map> #include <unordered_map>
#include <vector>
typedef struct { typedef struct {
std::string control; std::string control;
@@ -18,6 +19,8 @@ public:
PWM(); PWM();
void dumpValues(); void dumpValues();
std::vector<PWM_CONTROL> getControls();
void setEnable(PWM_CONTROL control, PWM_ENABLE value); void setEnable(PWM_CONTROL control, PWM_ENABLE value);
void setMode(PWM_CONTROL control, PWM_MODE mode); void setMode(PWM_CONTROL control, PWM_MODE mode);
void setValuePwm(PWM_CONTROL control, int pwm); void setValuePwm(PWM_CONTROL control, int pwm);

6
app/src/main.cxx
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@@ -47,8 +47,12 @@ int main() {
auto temp = nv.get_gpu_temperature(); auto temp = nv.get_gpu_temperature();
std::cout << "\nGPU Temp: " << temp << std::endl; std::cout << "\nGPU Temp: " << temp << std::endl;
PWM pwm; class PWM pwm;
pwm.dumpValues(); pwm.dumpValues();
auto controls = pwm.getControls();
pwm.setEnable(controls[1], AUTOMATIC);
return 0; return 0;
} }

35
app/src/pwm.cxx
View File

@@ -1,8 +1,11 @@
#include <cstdio>
#include <pwm.h> #include <pwm.h>
#include <filesystem> #include <filesystem>
#include <fstream>
#include <iostream> #include <iostream>
#include <regex> #include <regex>
#include <string>
namespace fs = std::filesystem; namespace fs = std::filesystem;
using namespace std; using namespace std;
@@ -12,6 +15,8 @@ using namespace std;
#define PWM_POSTFIX_ENABLE "_enable" #define PWM_POSTFIX_ENABLE "_enable"
#define PWM_POSTFIX_MODE "_mode" #define PWM_POSTFIX_MODE "_mode"
#define PWM_MAX_VALUE 255
PWM::PWM() { PWM::PWM() {
const regex re_ctrl_enable("pwm[0-9]_enable"); const regex re_ctrl_enable("pwm[0-9]_enable");
const regex re_ctrl_mode("pwm[0-9]_mode"); const regex re_ctrl_mode("pwm[0-9]_mode");
@@ -22,7 +27,6 @@ PWM::PWM() {
} else { } else {
for (const fs::directory_entry &hwmon_device : for (const fs::directory_entry &hwmon_device :
fs::directory_iterator{HWMON_BASE_PATH}) { fs::directory_iterator{HWMON_BASE_PATH}) {
cout << hwmon_device << endl;
for (const fs::directory_entry &control : for (const fs::directory_entry &control :
fs::directory_iterator{hwmon_device}) { fs::directory_iterator{hwmon_device}) {
@@ -54,3 +58,32 @@ void PWM::dumpValues() {
<< control.second.mode << endl; << control.second.mode << endl;
} }
} }
std::vector<PWM_CONTROL> PWM::getControls() {
std::vector<PWM_CONTROL> vec;
for (auto elem : mPwmControls) {
vec.push_back(elem.second);
}
return vec;
}
void PWM::setEnable(PWM_CONTROL control, PWM_ENABLE value) {
cout << control.control << endl;
std::ofstream ostrm(control.enable, std::ios::trunc);
ostrm << value;
ostrm.close();
}
void PWM::setValuePwm(PWM_CONTROL control, int pwm) {
if (pwm < 0 || pwm > 255)
return;
std::ofstream ostrm(control.control, std::ios::trunc);
ostrm << pwm;
ostrm.close();
}
void PWM::setValuePercent(PWM_CONTROL control, int percentage) {
setValuePwm(control, PWM_MAX_VALUE * percentage / 100);
}