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Bare functionality finished for basic GPIO pin abstraction

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This commit is contained in:
Luca Lizaranzu
2025-09-02 00:12:08 -07:00
parent db75c06c90
commit 35bc902187
6 changed files with 37 additions and 40 deletions
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35
SHAL/Src/Peripheral/GPIO/SHAL_GPIO.cpp
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@@ -25,48 +25,51 @@ unsigned long getPinMode(PinMode mode){
GPIO::GPIO(){
GPIO::GPIO() : m_GPIO_KEY(GPIO_Key::INVALID){
//Do not initialize anything
}
GPIO::GPIO(GPIO_Key key, PinMode pinMode) : m_GPIO_KEY(key),
p_GPIORegister(static_cast<GPIO_TypeDef*>(getGPIORegister(key).registers)),
m_offset(getGPIORegister(key).global_offset){
GPIO::GPIO(GPIO_Key key, PinMode pinMode) : m_GPIO_KEY(key) {
SHAL_Peripheral gpioPeripheral = getGPIORegister(key);
auto gpioRegister = static_cast<GPIO_TypeDef*>(gpioPeripheral.registers);
unsigned long registerOffset = gpioPeripheral.global_offset;
volatile unsigned long* gpioEnable = getGPIORCCEnable(key).reg;
unsigned long gpioOffset = getGPIORCCEnable(key).offset;
*gpioEnable |= (1 << gpioOffset); //Set enable flag
p_GPIORegister->MODER &= ~(0b11 << (2 * m_offset)); //Clear any previous mode
p_GPIORegister->MODER |= (getPinMode(pinMode) << (2 * m_offset)); //Set mode based on pinmode bit structure
gpioRegister->MODER &= ~(0b11 << (2 * registerOffset)); //Clear any previous mode
gpioRegister->MODER |= (getPinMode(pinMode) << (2 * registerOffset)); //Set mode based on pinmode bit structure
}
void GPIO::setLow() {
p_GPIORegister->ODR &= ~(1 << m_offset);
auto gpioPeripheral = getGPIORegister(m_GPIO_KEY);
static_cast<GPIO_TypeDef*>(gpioPeripheral.registers)->ODR &= ~(1 << gpioPeripheral.global_offset);
}
void GPIO::setHigh() {
p_GPIORegister->ODR |= (1 << m_offset);
auto gpioPeripheral = getGPIORegister(m_GPIO_KEY);
static_cast<GPIO_TypeDef*>(gpioPeripheral.registers)->ODR |= (1 << gpioPeripheral.global_offset);
}
void GPIO::toggle() {
p_GPIORegister->ODR ^= (1 << m_offset);
auto gpioPeripheral = getGPIORegister(m_GPIO_KEY);
static_cast<GPIO_TypeDef*>(gpioPeripheral.registers)->ODR ^= (1 << gpioPeripheral.global_offset);
}
GPIO* GPIOManager::get(GPIO_Key key, PinMode pinMode) {
GPIO& GPIOManager::get(GPIO_Key key, PinMode pinMode) {
unsigned int gpioPort = getGPIOPortNumber(key);
unsigned long gpioPin = getGPIORegister(key).global_offset; //Use existing structs to get offset
GPIO curr = *m_gpios[gpioPort][gpioPin];
if(curr.m_GPIO_KEY == GPIO_Key::INVALID || curr.m_pinMode != pinMode){
*m_gpios[gpioPort][gpioPin] = GPIO(key,pinMode);
if (m_gpios[gpioPort][gpioPin].m_GPIO_KEY == GPIO_Key::INVALID){
m_gpios[gpioPort][gpioPin] = GPIO(key,pinMode);
}
return m_gpios[gpioPort][gpioPin];
}
}