1 files changed, 78 insertions, 0 deletions
diff --git a/driver/xf86-video-radeonhd/src/rhd_pm.h b/driver/xf86-video-radeonhd/src/rhd_pm.h
new file mode 100644
index 000000000..9f7744cb2
--- /dev/null
+++ b/driver/xf86-video-radeonhd/src/rhd_pm.h
@@ -0,0 +1,78 @@
+/*
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation on the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NON-INFRINGEMENT.  IN NO EVENT SHALL ATI, VA LINUX SYSTEMS AND/OR
+ * THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _RHD_PM_H
+# define _RHD_PM_H
+
+/* Note about settings: RHD_PM_OFF may always change the memory clock, while
+ * for the others it remains to be seen whether we can change it without video
+ * disturbance. */
+/* TODO: forced settings overwrite default settings (Q: in which cases? RHD_PM_OFF?) */
+enum rhdPowerState_e {
+    /* DPMS off (Q: what about screensavers, what about 3D offscreen rendering apps) */
+    RHD_PM_OFF,
+    /* DPMS on, no activity for some time */
+    RHD_PM_IDLE,
+    /* Simple 2D activity */
+    RHD_PM_SLOW_2D,
+    /* Advanced 2D activity, e.g. video playback */
+    RHD_PM_FAST_2D,
+    /* Simple 3D activity, e.g. compiz (Q: how to select? indirect rendering only? */
+    RHD_PM_SLOW_3D,
+    /* Fast 3D activity, e.g. games. Usually using default AtomBIOS setting. */
+    RHD_PM_FAST_3D,
+    /* Use theoretical chip maximum, maybe beyond default - not selected automatically */
+    RHD_PM_MAX_3D,
+    /* User supplied */
+    RHD_PM_USER,
+    RHD_PM_NUM_STATES
+};
+
+struct rhdPm {
+    int               scrnIndex;
+
+    /* R/O */
+    struct rhdPowerState Default;
+    struct rhdPowerState Minimum;
+    struct rhdPowerState Maximum;
+    /* Known good settings (in addition to Default). May be NULL */
+    int    NumKnown;
+    struct rhdPowerState *Known;
+
+    struct rhdPowerState States[RHD_PM_NUM_STATES];
+    struct rhdPowerState Current;
+    struct rhdPowerState Stored;
+
+    Bool (*DefineState) (RHDPtr rhdPtr, enum rhdPowerState_e num, struct rhdPowerState *state);
+    Bool (*SelectState) (RHDPtr rhdPtr, enum rhdPowerState_e num);
+#if 0	/* TODO: expose? */
+    Bool (*SetRawState) (RHDPtr rhdPtr, struct rhdPowerState *state);
+    void (*GetRawState) (RHDPtr rhdPtr, struct rhdPowerState *state);
+#endif
+};
+
+void RHDPmInit(RHDPtr rhdPtr);
+void RHDPmSave(RHDPtr rhdPtr);
+void RHDPmRestore(RHDPtr rhdPtr);
+
+#endif /* _RHD_PM_H */