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authorZhao Yakui <yakui.zhao@intel.com>2009-06-22 13:17:09 +0800
committerDave Airlie <airlied@linux.ie>2009-07-15 16:31:43 +1000
commit26bbdadad356ec02d33657858d91675f3e9aca94 (patch)
tree12fe6960ac50e03d1b1cd7f352ec5e86abbe11ec /include/drm
parentd782c3f95c9263dc0b98e7115f75f1e18b9600b3 (diff)
drm/mode: add the GTF algorithm in kernel space
Add the GTF algorithm in kernel space. And this function can be called to generate the required modeline. I copied it from the file of xserver/hw/xfree86/modes/xf86gtf.c. What I have done is to translate it by using integer calculation. This is to avoid the float-point calculation in kernel space. At the same tie I also refer to the function of fb_get_mode in drivers/video/fbmon.c Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Dave Airlie <airlied@linux.ie>
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/drm_crtc.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 820bc0977e5..125994d8ac0 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -739,4 +739,7 @@ extern bool drm_detect_hdmi_monitor(struct edid *edid);
extern struct drm_display_mode *drm_cvt_mode(struct drm_device *dev,
int hdisplay, int vdisplay, int vrefresh,
bool reduced, bool interlaced);
+extern struct drm_display_mode *drm_gtf_mode(struct drm_device *dev,
+ int hdisplay, int vdisplay, int vrefresh,
+ bool interlaced, int margins);
#endif /* __DRM_CRTC_H__ */