diff options
| author | Zhao Yakui <yakui.zhao@intel.com> | 2009-06-22 13:17:08 +0800 |
|---|---|---|
| committer | Dave Airlie <airlied@linux.ie> | 2009-07-15 16:29:33 +1000 |
| commit | d782c3f95c9263dc0b98e7115f75f1e18b9600b3 (patch) | |
| tree | e58d950cfa9b9a3a0c52e0f91a08b00cb2be8421 /include/drm | |
| parent | e9e961c9a818a2f24711af493b907a8e40a69efc (diff) | |
drm/mode: add the CVT algorithm in kernel space
Add the CVT 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/xf86cvt.c. What I have
done is to translate it by using integer calculation. This is to avoid
the float-point calculation in kernel space.
[airlied:- cleaned up some bits]
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.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 7300fb86676..820bc0977e5 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -736,4 +736,7 @@ extern int drm_mode_gamma_get_ioctl(struct drm_device *dev, extern int drm_mode_gamma_set_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); 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); #endif /* __DRM_CRTC_H__ */ |