a96f23af9b
* fix multithread logic * more buffer for dallas id string * update apps to use new logic * delay_us small speedup * add consant qualifier to gpio records and some core api * fix some apps to use simpler method of getting gpio record * fix ibutton app, stupid stack problem
53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
#include "api-gpio.h"
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osMutexId_t gpioInitMutex;
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bool gpio_api_init(void) {
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gpioInitMutex = osMutexNew(NULL);
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if(gpioInitMutex == NULL) return false;
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return true;
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}
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// init GPIO
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void gpio_init(const GpioPin* gpio, const GpioMode mode) {
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if(osMutexAcquire(gpioInitMutex, osWaitForever) == osOK) {
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hal_gpio_init(gpio, mode, GpioPullNo, GpioSpeedLow);
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osMutexRelease(gpioInitMutex);
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}
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}
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// init GPIO, extended version
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void gpio_init_ex(
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const GpioPin* gpio,
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const GpioMode mode,
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const GpioPull pull,
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const GpioSpeed speed) {
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hal_gpio_init(gpio, mode, pull, speed);
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}
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// put GPIO to Z-state
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void gpio_disable(GpioDisableRecord* gpio_record) {
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const GpioPin* gpio_pin = acquire_mutex(gpio_record->gpio_mutex, 0);
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if(gpio_pin == NULL) {
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gpio_pin = gpio_record->gpio;
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}
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hal_gpio_init(gpio_pin, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
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release_mutex(gpio_record->gpio_mutex, gpio_pin);
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}
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// get GPIO record
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ValueMutex* gpio_open_mutex(const char* name) {
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ValueMutex* gpio_mutex = (ValueMutex*)furi_open(name);
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// TODO disable gpio on app exit
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//if(gpio_mutex != NULL) flapp_on_exit(gpio_disable, gpio_mutex);
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return gpio_mutex;
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}
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// get GPIO record and acquire mutex
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GpioPin* gpio_open(const char* name) {
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ValueMutex* gpio_mutex = gpio_open_mutex(name);
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GpioPin* gpio_pin = acquire_mutex(gpio_mutex, FLIPPER_HELPER_TIMEOUT);
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return gpio_pin;
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} |