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#include <limits.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include "gpio.h"
#include "fb.h"
#define FBSIZE (1186848 * 2)
#define SDPATH "/run/media/mmcblk0p1"
void halt(void)
{
char *halt[] = { "shutdown", "-h", "now", NULL };
fflush(NULL);
sync();
execvp(halt[0], halt);
}
void poweroff(int reason)
{
static int halting = 0;
if (halting) {
return;
}
halting = 1;
printf("shutting down (%d)\n", reason);
if (reason == GPIO_LOWBATTERY) {
printf("low battery\n");
}
exit(0);
}
void buttonpress(int button)
{
switch (button) {
case BUTTON_SPECIAL:
printf("special\n");
break;
case BUTTON_NEXTCHAPTER:
printf("next chapter\n");
break;
case BUTTON_PREVBOOK:
printf("previous book\n");
break;
case BUTTON_NEXTBOOK:
printf("next book\n");
break;
case BUTTON_PREVPAGE:
printf("previous page\n");
break;
case BUTTON_NEXTPAGE:
printf("next page\n");
break;
default:
printf("button %d pressed\n", button);
}
}
int main(int argc, char *argv[])
{
printf("starting freeonebook\n");
(void)argc; (void)argv;
printf("registering atexit() handler\n");
atexit(halt);
printf("adding watchers\n");
gpio_watch(GPIO_LOWBATTERY, poweroff);
gpio_watch(GPIO_SHUTDOWN, poweroff);
gpio_watch(BUTTON_SPECIAL, buttonpress);
gpio_watch(BUTTON_PREVBOOK, buttonpress);
gpio_watch(BUTTON_PREVPAGE, buttonpress);
gpio_watch(BUTTON_NEXTPAGE, buttonpress);
gpio_watch(BUTTON_NEXTCHAPTER, buttonpress);
gpio_watch(BUTTON_NEXTBOOK, buttonpress);
printf("initializing framebuffer\n");
fb_init();
for (;;) {
sleep(INT_MAX);
}
return 0;
}
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