summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/radeon/radeon_mode.h
diff options
context:
space:
mode:
authorMario Kleiner <mario.kleiner@tuebingen.mpg.de>2010-10-05 19:57:36 -0400
committerDave Airlie <airlied@redhat.com>2010-10-06 11:46:27 +1000
commit6383cf7d7839bf52aa4efa20cc921773126797f4 (patch)
tree963fa5cff40af73656442ccc1b7fdaf2097332ea /drivers/gpu/drm/radeon/radeon_mode.h
parentba032a58d1f320039e7850fb6e8651695c1aa571 (diff)
downloadop-kernel-dev-6383cf7d7839bf52aa4efa20cc921773126797f4.zip
op-kernel-dev-6383cf7d7839bf52aa4efa20cc921773126797f4.tar.gz
drm/radeon: Add function for display scanout position query.
radeon_get_crtc_scanoutpos() returns the current horizontal and vertical scanout position of a crtc. It also reports if the display scanout is currently inside the vblank area. hpos reports current horizontal pixel scanout position. vpos reports the current scanned out line as a value >= 0 in active scanout. If the scanout is inside vblank area, it reports a negative value, the number of scanlines until end of vblank aka start of active scanout, e.g., -3 == "At most 3 scanlines until end of vblank". This code is derived from radeon_pm_in_vbl(), tested on R500 and R600. Signed-off-by: Mario Kleiner <mario.kleiner@tuebingen.mpg.de> Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_mode.h')
-rw-r--r--drivers/gpu/drm/radeon/radeon_mode.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index d25cf09..f4396d7 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -428,6 +428,11 @@ struct radeon_framebuffer {
struct drm_gem_object *obj;
};
+/* radeon_get_crtc_scanoutpos() return flags */
+#define RADEON_SCANOUTPOS_VALID (1 << 0)
+#define RADEON_SCANOUTPOS_INVBL (1 << 1)
+#define RADEON_SCANOUTPOS_ACCURATE (1 << 2)
+
extern enum radeon_tv_std
radeon_combios_get_tv_info(struct radeon_device *rdev);
extern enum radeon_tv_std
@@ -531,6 +536,8 @@ extern int radeon_crtc_cursor_set(struct drm_crtc *crtc,
extern int radeon_crtc_cursor_move(struct drm_crtc *crtc,
int x, int y);
+extern int radeon_get_crtc_scanoutpos(struct radeon_device *rdev, int crtc, int *vpos, int *hpos);
+
extern bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev);
extern struct edid *
radeon_combios_get_hardcoded_edid(struct radeon_device *rdev);
OpenPOWER on IntegriCloud