/*
* IOCTL entry point -- This method is called to carry
* all services of this interface.
*/
rtems_device_driver frame_buffer_control(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg
)
{
rtems_libio_ioctl_args_t *args = arg;
printk( "FBVGA ioctl called, cmd=%x\n", args->command );
switch( args->command ) {
case FBIOGET_FSCREENINFO:
args->ioctl_return = get_fix_screen_info( ( struct fb_fix_screeninfo * ) args->buffer );
break;
case FBIOGET_VSCREENINFO:
args->ioctl_return = get_var_screen_info( ( struct fb_var_screeninfo * ) args->buffer );
break;
case FBIOPUT_VSCREENINFO:
/* not implemented yet*/
args->ioctl_return = -1;
return RTEMS_UNSATISFIED;
case FBIOGETCMAP:
args->ioctl_return = get_palette( ( struct fb_cmap * ) args->buffer );
break;
case FBIOPUTCMAP:
args->ioctl_return = set_palette( ( struct fb_cmap * ) args->buffer );
break;
default:
args->ioctl_return = 0;
break;
}
return RTEMS_SUCCESSFUL;
}
rtems_device_driver frame_buffer_control(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg
)
{
rtems_libio_ioctl_args_t *args = arg;
switch (args->command) {
case FBIOGET_FSCREENINFO:
args->ioctl_return =
get_fix_screen_info((struct fb_fix_screeninfo *)args->buffer);
return RTEMS_SUCCESSFUL;
case FBIOGET_VSCREENINFO:
args->ioctl_return =
get_var_screen_info((struct fb_var_screeninfo *)args->buffer);
return RTEMS_SUCCESSFUL;
case FBIOSWAPBUFFERS:
swap_buffers();
args->ioctl_return = 0;
return RTEMS_SUCCESSFUL;
case FBIOSETBUFFERMODE:
args->ioctl_return = 0;
switch ((unsigned int)args->buffer) {
case FB_SINGLE_BUFFERED:
init_buffers();
fb_fix.smem_start = (volatile char *)frontbuffer;
MM_WRITE(MM_VGA_BASEADDRESS, (unsigned int)frontbuffer);
return RTEMS_SUCCESSFUL;
case FB_TRIPLE_BUFFERED:
fb_fix.smem_start = (volatile char *)backbuffer;
return RTEMS_SUCCESSFUL;
default:
return RTEMS_UNSATISFIED;
}
case FBIOSETVIDEOMODE:
set_video_mode((int)args->buffer);
return RTEMS_SUCCESSFUL;
default:
args->ioctl_return = -1;
return RTEMS_UNSATISFIED;
}
}
