static void hvfb_cfb_imageblit(struct fb_info *p,
const struct fb_image *image)
{
struct hvfb_par *par = p->par;
cfb_imageblit(p, image);
if (par->synchronous_fb)
synthvid_update(p);
}
static void hvfb_cfb_copyarea(struct fb_info *p,
const struct fb_copyarea *area)
{
struct hvfb_par *par = p->par;
cfb_copyarea(p, area);
if (par->synchronous_fb)
synthvid_update(p);
}
static void hvfb_cfb_fillrect(struct fb_info *p,
const struct fb_fillrect *rect)
{
struct hvfb_par *par = p->par;
cfb_fillrect(p, rect);
if (par->synchronous_fb)
synthvid_update(p);
}
/*
* Delayed work callback:
* It is called at HVFB_UPDATE_DELAY or longer time interval to process
* screen updates. It is re-scheduled if further update is necessary.
*/
static void hvfb_update_work(struct work_struct *w)
{
struct hvfb_par *par = container_of(w, struct hvfb_par, dwork.work);
struct fb_info *info = par->info;
if (par->fb_ready)
synthvid_update(info);
if (par->update)
schedule_delayed_work(&par->dwork, HVFB_UPDATE_DELAY);
}
static int hvfb_on_panic(struct notifier_block *nb,
unsigned long e, void *p)
{
struct hvfb_par *par;
struct fb_info *info;
par = container_of(nb, struct hvfb_par, hvfb_panic_nb);
par->synchronous_fb = true;
info = par->info;
synthvid_update(info);
return NOTIFY_DONE;
}
/*
* Delayed work callback:
* It is called at HVFB_UPDATE_DELAY or longer time interval to process
* screen updates. It is re-scheduled if further update is necessary.
*/
static void hvfb_update_work(struct work_struct *w)
{
struct hvfb_par *par = container_of(w, struct hvfb_par, dwork.work);
struct fb_info *info = par->info;
char *argv[] = {"/usr/bin/xrefresh", "-display", ":0.0", NULL};
char *envp[] = {"HOME=/", "PATH=/sbin:/usr/sbin:/bin:/usr/bin", NULL };
if (par->xrefresh) {
par->xrefresh = false;
call_usermodehelper(argv[0], argv, envp, 0);
}
if (par->fb_ready)
synthvid_update(info);
if (par->update)
schedule_delayed_work(&par->dwork, HVFB_UPDATE_DELAY);
}
