xf86-video-intel: src/i830_lvds.c
Jesse Barnes
jbarnes at kemper.freedesktop.org
Thu Mar 6 13:58:16 PST 2008
src/i830_lvds.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
New commits:
commit be08b61540e1edbb7673f0b6add0f1e32b136b3c
Author: Jesse Barnes <jbarnes at jbarnes-t61.(none)>
Date: Thu Mar 6 13:55:13 2008 -0800
Implement new get_property feature for backlight control
This should keep the backlight value reported by xrandr --prop & xbacklight
consistent with changes by other software in the system (like the hotkey driver
or kernel backlight driver).
diff --git a/src/i830_lvds.c b/src/i830_lvds.c
index ef8fa4a..8359e39 100644
--- a/src/i830_lvds.c
+++ b/src/i830_lvds.c
@@ -851,6 +851,35 @@ i830_lvds_set_property(xf86OutputPtr output, Atom property,
}
#endif /* RANDR_12_INTERFACE */
+#ifdef RANDR_13_INTERFACE
+static Bool
+i830_lvds_get_property(xf86OutputPtr output, Atom property)
+{
+ ScrnInfoPtr pScrn = output->scrn;
+ I830Ptr pI830 = I830PTR(pScrn);
+ I830OutputPrivatePtr intel_output = output->driver_private;
+ struct i830_lvds_priv *dev_priv = intel_output->dev_priv;
+ int ret;
+
+ /*
+ * Only need to update properties that might change out from under
+ * us. The others will be cached by the randr core code.
+ */
+ if (property == backlight_atom) {
+ int val;
+ val = dev_priv->get_backlight(output);
+ dev_priv->backlight_duty_cycle = val;
+ ret = RRChangeOutputProperty(output->randr_output, backlight_atom,
+ XA_INTEGER, 32, PropModeReplace, 1, &val,
+ FALSE, TRUE);
+ if (ret != Success)
+ return FALSE;
+ }
+
+ return TRUE;
+}
+#endif /* RANDR_13_INTERFACE */
+
static const xf86OutputFuncsRec i830_lvds_output_funcs = {
.create_resources = i830_lvds_create_resources,
.dpms = i830_lvds_dpms,
@@ -866,6 +895,9 @@ static const xf86OutputFuncsRec i830_lvds_output_funcs = {
#ifdef RANDR_12_INTERFACE
.set_property = i830_lvds_set_property,
#endif
+#ifdef RANDR_13_INTERFACE
+ .get_property = i830_lvds_get_property,
+#endif
.destroy = i830_lvds_destroy
};
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