static ssize_t store_refresh(struct device *device,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct fb_info *fb = dev_get_drvdata(device);
struct omap3epfb_par *par = fb->par;
int index = FIRST_USER_REGION;
struct omap3epfb_area *area = NULL;
int clear = simple_strtoul(buf, NULL, 0);
if (clear > 2 || clear < 0)
return -EINVAL;
omap3epfb_reqq_purge(fb);
switch (clear)
{
case 0: omap3epfb_update_screen(fb, OMAP3EPFB_WVFID_AUTO, false);
break;
case 1: omap3epfb_update_screen(fb, OMAP3EPFB_WVFID_GC, false);
break;
case 2: area = &par->effect_array[index];
if (!(area->effect_flags & (EFFECT_ONESHOT | EFFECT_ACTIVE | EFFECT_CLEAR)))
break;
omap3epfb_update_area(fb, &area->effect_area);
break;
default:
omap3epfb_update_screen(fb, OMAP3EPFB_WVFID_AUTO, false);
}
return count;
}
static bool batch_update(struct fb_info *info, struct omap3epfb_update_area *p)
{
struct omap3epfb_par *par = info->par;
// If EPD is disabled, do nothing
if (par->disable_flags > 0)
{
DEBUG_REGION(DEBUG_LEVEL3, p,"update DISABLED = ");
// Tell the caller not to update.
return false;
}
// Check if the delayed full screen updates are enabled.
if (!par->clear_delay)
{
DEBUG_REGION(DEBUG_LEVEL1, p," do = ");
if (fast==1) {
omap3epfb_update_screen(par->info, OMAP3EPFB_WVFID_VU, false);
} else {
omap3epfb_update_area(info, p);
}
return false;
}
// If this is not a fullscreen GC update, treat it as a normal update.
if (!(rect_fullscreen(info, p) && p->wvfid == OMAP3EPFB_WVFID_GC))
{
// If we have a fullscreen batched, we do not need to update.
if (!delayed_work_pending(&par->clear_work))
{
DEBUG_REGION(DEBUG_LEVEL1, p," do = ");
if (fast==1) {
omap3epfb_update_screen(par->info, OMAP3EPFB_WVFID_VU, false);
} else {
omap3epfb_update_area(info, p);
}
}
else
{
DEBUG_REGION(DEBUG_LEVEL1, p," skip = ");
}
return false;
}
// We need to do fullscreen batching.
if (par->user_debug & DEBUG_LEVEL1)
{
if (TIME_DELTA_MS(par->last_clear) < 1000)
DEBUG_REGION(DEBUG_LEVEL1, p," req FULLSCREEN PREV %dms ago AUTO = ", TIME_DELTA_MS(par->last_clear));
else
DEBUG_REGION(DEBUG_LEVEL1, p," req FULLSCREEN = ");
}
omap3epfb_reqq_purge(par->info);
cancel_delayed_work_sync(&par->clear_work);
schedule_delayed_work(&par->clear_work, msecs_to_jiffies(par->clear_delay));
par->last_clear = TIME_STAMP();
return true;
}
static void omap3epfb_clear_work(struct work_struct *work)
{
struct omap3epfb_par *par = container_of(work,
struct omap3epfb_par,
clear_work.work);
DEBUG_LOG(DEBUG_LEVEL2,"delayed FULLSCREEN Update\n");
omap3epfb_reqq_purge(par->info);
omap3epfb_update_screen(par->info, OMAP3EPFB_WVFID_GC, false);
}
static void omap3epfb_disable_work(struct work_struct *work)
{
struct omap3epfb_par *par = container_of(work,
struct omap3epfb_par,
disable_work.work);
g_disable_time = 0; // Reset expiration time
par->disable_flags = 0;
DEBUG_LOG(DEBUG_LEVEL2,"delayed enable EPD Updates\n");
omap3epfb_reqq_purge(par->info);
omap3epfb_update_screen(par->info, OMAP3EPFB_WVFID_GC, false);
}
int omap3epfb_fill_region(struct fb_info *info, struct omap3epfb_area *p)
{
struct omap3epfb_par *par = info->par;
if ((p->effect_area.threshold != OMAP3EPFB_THRESHOLD_BLACK) &&
(p->effect_area.threshold != OMAP3EPFB_THRESHOLD_WHITE))
return -EINVAL;
omap3epfb_reqq_purge(info);
omap3epfb_update_area(info, &p->effect_area);
DEBUG_REGION(DEBUG_LEVEL4, &p->effect_area," do fill = ");
return 0;
}
static void omap3epfb_lost_update(struct work_struct *work)
{
struct omap3epfb_par *par = container_of(work,
struct omap3epfb_par,
lost_update.work);
printk("lost_update\n");
// if (skip==1) {
cancel_delayed_work_sync(&par->clear_work);
cancel_delayed_work_sync(&par->disable_work);
g_disable_time = 0; // Reset expiration time
par->disable_flags = 0;
par->last_clear = TIME_STAMP();
omap3epfb_reqq_purge(par->info);
if (fast==0) {
omap3epfb_update_screen(par->info, OMAP3EPFB_WVFID_GU, false);
} else {
omap3epfb_update_screen(par->info, OMAP3EPFB_WVFID_VU, false);
}
// }
}