mirror of
https://github.com/FunKey-Project/FunKey-GPIO-Mapping.git
synced 2025-12-12 17:58:54 +01:00
79 lines
2.1 KiB
C
79 lines
2.1 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <signal.h> // Defines signal-handling functions (i.e. trap Ctrl-C)
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#include <sys/select.h>
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#include "gpio-utils.h"
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#include <assert.h>
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#include "uinput.h"
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#include "gpio_mapping.h"
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#include "read_conf_file.h"
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/****************************************************************
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* Defines
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****************************************************************/
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/****************************************************************
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* Global variables
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****************************************************************/
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int keepgoing = 1; // Set to 0 when ctrl-c is pressed
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/****************************************************************
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* signal_handler
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****************************************************************/
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void signal_handler(int sig);
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// Callback called when SIGINT is sent to the process (Ctrl-C)
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void signal_handler(int sig)
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{
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printf( "Ctrl-C pressed, cleaning up and exiting..\n" );
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keepgoing = 0;
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}
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/****************************************************************
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* Local functions
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****************************************************************/
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/****************************************************************
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* Main
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****************************************************************/
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int main(int argc, char **argv, char **envp)
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{
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// Variables
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STRUCT_MAPPED_GPIO * chained_list_mapping = NULL;
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int nb_valid_gpios = 0;
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int * gpio_pins = NULL;
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// Set the signal callback for Ctrl-C
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signal(SIGINT, signal_handler);
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// Init uinput device
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init_uinput();
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// Read Conf File: Get GPIO pins to declare and all valid pin mappings
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get_mapping_from_conf_file(&chained_list_mapping, &nb_valid_gpios, &gpio_pins);
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// Init GPIOs
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init_mapping_gpios(gpio_pins, nb_valid_gpios, chained_list_mapping);
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// Main Loop
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while (keepgoing) {
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listen_gpios_interrupts();
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}
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// De-Init GPIOs
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deinit_mapping_gpios();
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/*
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* Give userspace some time to read the events before we destroy the
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* device with UI_DEV_DESTOY.
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*/
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close_uinput();
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return 0;
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}
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