731f359292
py/mphal.h contains declarations for generic mp_hal_XXX functions, such as stdio and delay/ticks, which ports should provide definitions for. A port will also provide mphalport.h with further HAL declarations.
32 lines
947 B
C
32 lines
947 B
C
#include "py/obj.h"
|
|
#include "pin.h"
|
|
|
|
// Returns the pin mode. This value returned by this macro should be one of:
|
|
// GPIO_MODE_INPUT, GPIO_MODE_OUTPUT_PP, GPIO_MODE_OUTPUT_OD,
|
|
// GPIO_MODE_AF_PP, GPIO_MODE_AF_OD, or GPIO_MODE_ANALOG.
|
|
|
|
uint32_t pin_get_mode(const pin_obj_t *pin) {
|
|
GPIO_TypeDef *gpio = pin->gpio;
|
|
uint32_t mode = (gpio->MODER >> (pin->pin * 2)) & 3;
|
|
if (mode != GPIO_MODE_ANALOG) {
|
|
if (gpio->OTYPER & pin->pin_mask) {
|
|
mode |= 1 << 4;
|
|
}
|
|
}
|
|
return mode;
|
|
}
|
|
|
|
// Returns the pin pullup/pulldown. The value returned by this macro should
|
|
// be one of GPIO_NOPULL, GPIO_PULLUP, or GPIO_PULLDOWN.
|
|
|
|
uint32_t pin_get_pull(const pin_obj_t *pin) {
|
|
return (pin->gpio->PUPDR >> (pin->pin * 2)) & 3;
|
|
}
|
|
|
|
// Returns the af (alternate function) index currently set for a pin.
|
|
|
|
uint32_t pin_get_af(const pin_obj_t *pin) {
|
|
return (pin->gpio->AFR[pin->pin >> 3] >> ((pin->pin & 7) * 4)) & 0xf;
|
|
}
|
|
|