EDID: CEA extension support

Reviewed-by: Adam Jackson <ajax@redhat.com>

1 files changed, 50 insertions, 0 deletions

diff --git a/hw/xfree86/ddc/xf86DDC.h b/hw/xfree86/ddc/xf86DDC.h
index 64869da10..af3ba06a5 100644
--- a/hw/xfree86/ddc/xf86DDC.h
+++ b/hw/xfree86/ddc/xf86DDC.h
@@ -73,4 +73,54 @@ FindDMTMode(int hsize, int vsize, int refresh, Bool rb);
 
 extern _X_EXPORT const DisplayModeRec DMTModes[];
 
+/*
+ * Quirks to work around broken EDID data from various monitors.
+ */
+typedef enum {
+    DDC_QUIRK_NONE = 0,
+    /* First detailed mode is bogus, prefer largest mode at 60hz */
+    DDC_QUIRK_PREFER_LARGE_60 = 1 << 0,
+    /* 135MHz clock is too high, drop a bit */
+    DDC_QUIRK_135_CLOCK_TOO_HIGH = 1 << 1,
+    /* Prefer the largest mode at 75 Hz */
+    DDC_QUIRK_PREFER_LARGE_75 = 1 << 2,
+    /* Convert detailed timing's horizontal from units of cm to mm */
+    DDC_QUIRK_DETAILED_H_IN_CM = 1 << 3,
+    /* Convert detailed timing's vertical from units of cm to mm */
+    DDC_QUIRK_DETAILED_V_IN_CM = 1 << 4,
+    /* Detailed timing descriptors have bogus size values, so just take the
+     * maximum size and use that.
+     */
+    DDC_QUIRK_DETAILED_USE_MAXIMUM_SIZE = 1 << 5,
+    /* Monitor forgot to set the first detailed is preferred bit. */
+    DDC_QUIRK_FIRST_DETAILED_PREFERRED = 1 << 6,
+    /* use +hsync +vsync for detailed mode */
+    DDC_QUIRK_DETAILED_SYNC_PP = 1 << 7,
+    /* Force single-link DVI bandwidth limit */
+    DDC_QUIRK_DVI_SINGLE_LINK = 1 << 8,
+} ddc_quirk_t;
+
+DisplayModePtr xf86DDCGetModes(int scrnIndex, xf86MonPtr DDC);
+
+extern Bool
+xf86MonitorIsHDMI(xf86MonPtr mon);
+
+typedef void (* handle_detailed_fn)(struct detailed_monitor_section *,void *);
+
+void xf86ForEachDetailedBlock(xf86MonPtr mon,
+                              handle_detailed_fn,
+                              void *data);
+
+ddc_quirk_t
+xf86DDCDetectQuirks(int scrnIndex, xf86MonPtr DDC, Bool verbose);
+
+void xf86DetTimingApplyQuirks(struct detailed_monitor_section *det_mon,
+                              ddc_quirk_t quirks, int hsize, int vsize);
+
+typedef void (* handle_video_fn)(struct cea_video_block *, void *);
+
+void xf86ForEachVideoBlock(xf86MonPtr,
+                           handle_video_fn,
+                           void *);
+
 #endif