static int s3cfb_blank(int blank_mode, struct fb_info *fb)
{
struct s3cfb_window *win = fb->par;
struct s3cfb_global *fbdev =
platform_get_drvdata(to_platform_device(fb->device));
dev_dbg(fbdev->dev, "change blank mode\n");
switch (blank_mode) {
case FB_BLANK_UNBLANK:
if (fb->fix.smem_start) {
s3cfb_win_map_off(fbdev, win->id);
s3cfb_set_window(fbdev, win->id, 1);
} else
dev_info(fbdev->dev,
"[fb%d] no allocated memory for unblank\n",
win->id);
break;
case FB_BLANK_NORMAL:
s3cfb_win_map_on(fbdev, win->id, 0);
s3cfb_set_window(fbdev, win->id, 1);
break;
case FB_BLANK_POWERDOWN:
s3cfb_set_window(fbdev, win->id, 0);
s3cfb_win_map_off(fbdev, win->id);
break;
case FB_BLANK_VSYNC_SUSPEND:
case FB_BLANK_HSYNC_SUSPEND:
default:
dev_dbg(fbdev->dev, "unsupported blank mode\n");
return -EINVAL;
}
return 0;
}
int s3cfb_blank(int blank_mode, struct fb_info *fb)
{
struct s3cfb_window *win = fb->par;
struct s3cfb_window *tmp_win;
struct s3cfb_global *fbdev = get_fimd_global(fb->node);
struct platform_device *pdev = to_platform_device(fbdev->dev);
struct s3c_platform_fb *pdata = to_fb_plat(fbdev->dev);
int enabled_win = 0;
int i;
dev_dbg(fbdev->dev, "change blank mode\n");
switch (blank_mode) {
case FB_BLANK_UNBLANK:
if (!fb->fix.smem_start) {
dev_info(fbdev->dev, \
"[fb%d] no allocated memory for unblank\n", win->id);
break;
}
if (win->power_state == FB_BLANK_UNBLANK) {
dev_info(fbdev->dev, \
"[fb%d] already in FB_BLANK_UNBLANK\n", win->id);
break;
} else {
s3cfb_update_power_state(fbdev, win->id,
FB_BLANK_UNBLANK);
}
enabled_win = atomic_read(&fbdev->enabled_win);
if (enabled_win == 0) {
pdata->clk_on(pdev, &fbdev->clock);
s3cfb_init_global(fbdev);
s3cfb_set_clock(fbdev);
for (i = 0; i < pdata->nr_wins; i++) {
tmp_win = fbdev->fb[i]->par;
if (tmp_win->owner == DMA_MEM_FIMD)
s3cfb_set_win_params(fbdev,
tmp_win->id);
}
}
if (win->enabled) /* from FB_BLANK_NORMAL */
s3cfb_win_map_off(fbdev, win->id);
else /* from FB_BLANK_POWERDOWN */
s3cfb_enable_window(fbdev, win->id);
if (enabled_win == 0) {
s3cfb_display_on(fbdev);
if (pdata->backlight_on)
pdata->backlight_on(pdev);
if (pdata->lcd_on)
pdata->lcd_on(pdev);
if (fbdev->lcd->init_ldi)
fbdev->lcd->init_ldi();
}
break;
case FB_BLANK_NORMAL:
if (win->power_state == FB_BLANK_NORMAL) {
dev_info(fbdev->dev, \
"[fb%d] already in FB_BLANK_NORMAL\n", win->id);
break;
} else {
s3cfb_update_power_state(fbdev, win->id,
FB_BLANK_NORMAL);
}
enabled_win = atomic_read(&fbdev->enabled_win);
if (enabled_win == 0) {
pdata->clk_on(pdev, &fbdev->clock);
s3cfb_init_global(fbdev);
s3cfb_set_clock(fbdev);
for (i = 0; i < pdata->nr_wins; i++) {
tmp_win = fbdev->fb[i]->par;
if (tmp_win->owner == DMA_MEM_FIMD)
s3cfb_set_win_params(fbdev,
tmp_win->id);
}
}
s3cfb_win_map_on(fbdev, win->id, 0x0);
if (!win->enabled) /* from FB_BLANK_POWERDOWN */
s3cfb_enable_window(fbdev, win->id);
if (enabled_win == 0) {
s3cfb_display_on(fbdev);
if (pdata->backlight_on)
pdata->backlight_on(pdev);
if (pdata->lcd_on)
pdata->lcd_on(pdev);
if (fbdev->lcd->init_ldi)
fbdev->lcd->init_ldi();
}
break;
case FB_BLANK_POWERDOWN:
if (win->power_state == FB_BLANK_POWERDOWN) {
dev_info(fbdev->dev, \
"[fb%d] already in FB_BLANK_POWERDOWN\n", win->id);
break;
} else {
s3cfb_update_power_state(fbdev, win->id,
FB_BLANK_POWERDOWN);
}
s3cfb_disable_window(fbdev, win->id);
s3cfb_win_map_off(fbdev, win->id);
if (atomic_read(&fbdev->enabled_win) == 0) {
if (pdata->backlight_off)
pdata->backlight_off(pdev);
if (fbdev->lcd->deinit_ldi)
fbdev->lcd->deinit_ldi();
if (pdata->lcd_off)
pdata->lcd_off(pdev);
s3cfb_display_off(fbdev);
pdata->clk_off(pdev, &fbdev->clock);
}
break;
case FB_BLANK_VSYNC_SUSPEND: /* fall through */
case FB_BLANK_HSYNC_SUSPEND: /* fall through */
default:
dev_dbg(fbdev->dev, "unsupported blank mode\n");
return -EINVAL;
}
return 0;
}
