1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/sys_linuxfb.c	Thu Feb 07 16:03:32 2013 +0200
     1.3 @@ -0,0 +1,57 @@
     1.4 +#include <stdio.h>
     1.5 +#include <string.h>
     1.6 +#include <errno.h>
     1.7 +#include <unistd.h>
     1.8 +#include <fcntl.h>
     1.9 +#include <sys/ioctl.h>
    1.10 +#include <sys/select.h>
    1.11 +#include <linux/fb.h>
    1.12 +
    1.13 +static int fbfd;
    1.14 +static void *framebuf;
    1.15 +
    1.16 +static int width, height, bpp;
    1.17 +static int dirty;
    1.18 +
    1.19 +int fbee_sys_init(void)
    1.20 +{
    1.21 +	struct fb_var_screeninfo sinf;
    1.22 +	struct termios termios;
    1.23 +
    1.24 +	/* open framebuffer device */
    1.25 +	if((fbfd = open("/dev/fb0", O_RDWR)) == -1) {
    1.26 +		fprintf(stderr, "failed to open /dev/fb0: %s\n", strerror(errno));
    1.27 +		return -1;
    1.28 +	}
    1.29 +
    1.30 +	if(ioctl(fbfd, FBIOGET_VSCREENINFO, &sinf) == -1) {
    1.31 +		fprintf(stderr, "failed to retreive screen information for fb0: %s\n", strerror(errno));
    1.32 +		close(fbfd);
    1.33 +		fbfd = -1;
    1.34 +		return -1;
    1.35 +	}
    1.36 +	width = sinf.width;
    1.37 +	height = sinf.height;
    1.38 +	bpp = sinf.bits_per_pixel;
    1.39 +
    1.40 +	if((framebuf = mmap(0, width * height * bpp / 8, PROT_READ | PROT_WRITE,
    1.41 +					MAP_SHARED, fbfd, 0)) == (void*)-1) {
    1.42 +		fprintf(stderr, "failed to map framebuffer: %s\n", strerror(errno));
    1.43 +		return -1;
    1.44 +	}
    1.45 +
    1.46 +
    1.47 +	/* set terminal in raw mode */
    1.48 +	if(tcgetattr(0, &termios) == -1) {
    1.49 +		fprintf(stderr, "failed to get terminal information: %s\n", strerror(errno));
    1.50 +		munmap(framebuf, width * height * bpp / 8);
    1.51 +		return -1;
    1.52 +	}
    1.53 +
    1.54 +	/* open /dev/psaux for mouse input */
    1.55 +	if((mousefd = open("/dev/psaux", O_RDONLY | O_NONBLOCK)) == -1) {
    1.56 +		fprintf(stderr, "Failed to open the mouse device: %s, mouse will be unavailable.\n", strerror(errno));
    1.57 +	}
    1.58 +
    1.59 +	return 0;
    1.60 +}