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exposing Lua PWM API

This commit is contained in:
Andrey 2024-04-04 14:13:04 -04:00
parent 9397521d0b
commit b45dcefbac
2 changed files with 29 additions and 19 deletions
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45
firmware/controllers/lua/lua_hooks.cpp
View File

@ -268,6 +268,23 @@ static P luaL_checkPwmIndex(lua_State* l, int pos) {
#define PWM_FREQ_PWM 1000
#endif
void startPwm(int index, float freq, float duty) {
// clamp to 1..1000 hz, this line would turn 0hz on/off PWM into 1hz behind the scenes
freq = clampF(1, freq, 1000);
brain_pin_e pwmPin = engineConfiguration->luaOutputPins[index];
startSimplePwmExt(
&pwms[index], "lua", &engine->executor,
pwmPin, &enginePins.luaOutputPins[index],
freq, duty
);
efiPrintf("LUA PWM on %s at %f initial duty",
hwPortname(pwmPin),
PERCENT_MULT * duty);
}
static int lua_startPwm(lua_State* l) {
auto p = luaL_checkPwmIndex(l, 1);
auto freq = luaL_checknumber(l, 2);
@ -278,20 +295,7 @@ static int lua_startPwm(lua_State* l) {
return 0;
}
// clamp to 1..1000 hz, this line would turn 0hz on/off PWM into 1hz behind the scenes
freq = clampF(1, freq, 1000);
brain_pin_e pwmPin = engineConfiguration->luaOutputPins[p.idx];
startSimplePwmExt(
&p.pwm, "lua", &engine->executor,
pwmPin, &enginePins.luaOutputPins[p.idx],
freq, duty
);
efiPrintf("LUA PWM on %s at %f initial duty",
hwPortname(pwmPin),
PERCENT_MULT * duty);
startPwm(p.idx, freq, duty);
return 0;
}
@ -303,14 +307,17 @@ void luaDeInitPins() {
}
}
static int lua_setPwmDuty(lua_State* l) {
auto p = luaL_checkPwmIndex(l, 1);
auto duty = luaL_checknumber(l, 2);
void setPwmDuty(int index, float duty) {
// clamp to 0..1
duty = clampF(0, duty, 1);
p.pwm.setSimplePwmDutyCycle(duty);
pwms[index].setSimplePwmDutyCycle(duty);
}
static int lua_setPwmDuty(lua_State* l) {
auto p = luaL_checkPwmIndex(l, 1);
auto duty = luaL_checknumber(l, 2);
setPwmDuty(p.idx, duty);
return 0;
}

3
firmware/controllers/lua/lua_hooks.h
View File

@ -35,3 +35,6 @@ struct LuaOverrideSensor final : public Sensor {
float overrideValue = -1;
SensorType m_underlyingType;
};
void startPwm(int index, float freq, float duty);
void setPwmDuty(int index, float duty);