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#include "api-gpio.h"
osMutexId_t gpioInitMutex;
bool gpio_api_init(void) {
gpioInitMutex = osMutexNew(NULL);
if(gpioInitMutex == NULL) return false;
return true;
}
// init GPIO
void gpio_init(const GpioPin* gpio, const GpioMode mode) {
if(osMutexAcquire(gpioInitMutex, osWaitForever) == osOK) {
hal_gpio_init(gpio, mode, GpioPullNo, GpioSpeedLow);
osMutexRelease(gpioInitMutex);
}
}
// init GPIO, extended version
void gpio_init_ex(
const GpioPin* gpio,
const GpioMode mode,
const GpioPull pull,
const GpioSpeed speed) {
hal_gpio_init(gpio, mode, pull, speed);
}
// put GPIO to Z-state
void gpio_disable(GpioDisableRecord* gpio_record) {
const GpioPin* gpio_pin = acquire_mutex(gpio_record->gpio_mutex, 0);
if(gpio_pin == NULL) {
gpio_pin = gpio_record->gpio;
}
hal_gpio_init(gpio_pin, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
release_mutex(gpio_record->gpio_mutex, gpio_pin);
}
// get GPIO record
ValueMutex* gpio_open_mutex(const char* name) {
ValueMutex* gpio_mutex = (ValueMutex*)furi_open(name);
// TODO disable gpio on app exit
//if(gpio_mutex != NULL) flapp_on_exit(gpio_disable, gpio_mutex);
return gpio_mutex;
}
// get GPIO record and acquire mutex
GpioPin* gpio_open(const char* name) {
ValueMutex* gpio_mutex = gpio_open_mutex(name);
GpioPin* gpio_pin = acquire_mutex(gpio_mutex, FLIPPER_HELPER_TIMEOUT);
return gpio_pin;
}
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