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Add gpio_deinit (#793)

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bruelltuete 2022-05-03 17:46:27 +01:00 committed by GitHub
parent c66a2c1c3b
commit 76c1830aeb
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2 changed files with 11 additions and 0 deletions
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4
src/rp2_common/hardware_gpio/gpio.c
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@ -217,6 +217,10 @@ void gpio_init(uint gpio) {
gpio_set_function(gpio, GPIO_FUNC_SIO); gpio_set_function(gpio, GPIO_FUNC_SIO);
} }
void gpio_deinit(uint gpio) {
gpio_set_function(gpio, GPIO_FUNC_NULL);
}
void gpio_init_mask(uint gpio_mask) { void gpio_init_mask(uint gpio_mask) {
for(uint i=0;i<32;i++) { for(uint i=0;i<32;i++) {
if (gpio_mask & 1) { if (gpio_mask & 1) {

7
src/rp2_common/hardware_gpio/include/hardware/gpio.h
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@ -414,6 +414,13 @@ void gpio_acknowledge_irq(uint gpio, uint32_t events);
*/ */
void gpio_init(uint gpio); void gpio_init(uint gpio);
/*! \brief Resets a GPIO back to the NULL function, i.e. disables it.
* \ingroup hardware_gpio
*
* \param gpio GPIO number
*/
void gpio_deinit(uint gpio);
/*! \brief Initialise multiple GPIOs (enabled I/O and set func to GPIO_FUNC_SIO) /*! \brief Initialise multiple GPIOs (enabled I/O and set func to GPIO_FUNC_SIO)
* \ingroup hardware_gpio * \ingroup hardware_gpio
* *