From d782c3f95c9263dc0b98e7115f75f1e18b9600b3 Mon Sep 17 00:00:00 2001 From: Zhao Yakui Date: Mon, 22 Jun 2009 13:17:08 +0800 Subject: 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 Signed-off-by: Dave Airlie --- include/drm/drm_crtc.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/drm/drm_crtc.h') diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 7300fb866767..820bc0977e5e 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__ */ -- cgit v1.2.3