/* * 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; } }