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-rw-r--r--gpio/stm32_gpio.h16
1 files changed, 12 insertions, 4 deletions
diff --git a/gpio/stm32_gpio.h b/gpio/stm32_gpio.h
index 6a428d4..7d47b92 100644
--- a/gpio/stm32_gpio.h
+++ b/gpio/stm32_gpio.h
@@ -32,10 +32,10 @@ class STM32_GPIO_v1_t : public mmio_ptr<STM32_GPIO_reg_v1_t> {
class Pin {
private:
const STM32_GPIO_v1_t& g;
- int n;
public:
- constexpr Pin(const STM32_GPIO_v1_t& gpio, int pin) : g(gpio), n(pin) {}
+ const int n;
+ constexpr Pin(const STM32_GPIO_v1_t& gpio, const int pin) : g(gpio), n(pin) {}
enum Mode {
Input = 0x4,
@@ -76,6 +76,10 @@ class STM32_GPIO_v1_t : public mmio_ptr<STM32_GPIO_reg_v1_t> {
void toggle() {
set(!(g->ODR & (1 << n)));
}
+
+ unsigned get_portnum() {
+ return (((*(uint32_t*)&g) >>10) & 0xf) - 2;
+ }
};
class PinArray {
@@ -121,10 +125,10 @@ class STM32_GPIO_v2_t : public mmio_ptr<STM32_GPIO_reg_v2_t> {
class Pin {
private:
const STM32_GPIO_v2_t& g;
- int n;
public:
- constexpr Pin(const STM32_GPIO_v2_t& gpio, int pin) : g(gpio), n(pin) {}
+ const int n;
+ constexpr Pin(const STM32_GPIO_v2_t& gpio, const int pin) : g(gpio), n(pin) {}
enum Mode {
Input,
@@ -202,6 +206,10 @@ class STM32_GPIO_v2_t : public mmio_ptr<STM32_GPIO_reg_v2_t> {
void toggle() {
set(!(g->ODR & (1 << n)));
}
+
+ unsigned get_portnum() {
+ return (((*(uint32_t*)&g) >>10) & 0xf);
+ }
};
class PinArray {