qi-hardware/gmenu2x
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Add a function which unlocks the virtual terminal before and after each execution of a binary.

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It ensures that GMenu2X can restart after a SDL program segfaulted or crashed.
It also allow GMenu2X to exit without clearing the screen, so that the "loading" screen appears
until the launched binary starts using the framebuffer.
This commit is contained in:
Ayla 2011-07-11 11:27:38 +02:00
parent 55dad4171d
commit 0993a48eca
1 changed files with 64 additions and 0 deletions
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64
src/gmenu2x.cpp
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@ -35,6 +35,13 @@
#include "gp2x.h"
#include <sys/fcntl.h> //for battery
#ifdef PLATFORM_DINGUX
# define UNLOCK_VT
# include <sys/ioctl.h>
# include <linux/vt.h>
# include <linux/kd.h>
#endif
//for browsing the filesystem
#include <sys/stat.h>
#include <sys/types.h>
@ -121,6 +128,52 @@ static void quit_all(int err) {
exit(err);
}
#ifdef UNLOCK_VT
#define FB_TTY "/dev/tty%i"
static void unlockVT()
{
int i;
int fd;
char tty[10];
for (i=0; i < 10; i++) {
int mode;
sprintf(tty, FB_TTY, i);
fd = open(tty, O_RDWR);
if (fd < 0)
continue;
if (ioctl(fd, KDGETMODE, &mode) < 0) {
WARNING("Unable to get mode for tty %i.\n", i);
close(fd);
return;
}
if (mode != KD_TEXT)
break;
close(fd);
}
if (i==10) {
DEBUG("No graphic tty found.\n");
return;
}
DEBUG("Graphic tty found on %s.\n", tty);
if (ioctl(fd, KDSETMODE, KD_TEXT) < 0)
WARNING("unable to set keyboard mode.\n");
if (ioctl(fd, VT_UNLOCKSWITCH, 1) < 0)
WARNING("unable to unlock terminal.\n");
close(fd);
}
#endif
const string GMenu2X::getHome(void)
{
return gmenu2x_home;
@ -291,6 +344,10 @@ GMenu2X::GMenu2X() {
}*/
#endif
#ifdef UNLOCK_VT
unlockVT();
#endif
//Screen
if( SDL_Init(SDL_INIT_VIDEO|SDL_INIT_AUDIO|SDL_INIT_JOYSTICK|SDL_INIT_TIMER)<0 ) {
ERROR("Could not initialize SDL: %s\n", SDL_GetError());
@ -352,7 +409,14 @@ void GMenu2X::quit() {
fflush(NULL);
sc.clear();
free(s);
#ifdef UNLOCK_VT
SDL_QuitSubSystem(SDL_INIT_EVERYTHING & ~SDL_INIT_VIDEO);
unlockVT();
#else
SDL_Quit();
#endif
#ifdef TARGET_GP2X
/* if (gp2x_mem!=0) {
//Fix tv-out