Add 800x480p 60Hz mode (295 MHz bit clock)

software/apps/sprite_bounce/main.c

@@ -16,6 +16,7 @@
 
 // Pick one:
 #define MODE_640x480_60Hz
+// #define MODE_800x480_60Hz
 // #define MODE_800x600_60Hz
 // #define MODE_960x540p_60Hz
 // #define MODE_1280x720_30Hz
@@ -34,6 +35,13 @@
 #define VREG_VSEL VREG_VOLTAGE_1_20
 #define DVI_TIMING dvi_timing_640x480p_60hz
 
+#elif defined(MODE_800x480_60Hz)
+#define FRAME_WIDTH 400
+#define FRAME_HEIGHT 240
+#define BIT_CLOCK_MHZ 296
+#define VREG_VSEL VREG_VOLTAGE_1_20
+#define DVI_TIMING dvi_timing_800x480p_60hz
+
 #elif defined(MODE_800x600_60Hz)
 // DVDD 1.3V, going downhill with a tailwind
 #define FRAME_WIDTH 400
@@ -42,7 +50,6 @@
 #define VREG_VSEL VREG_VOLTAGE_1_30
 #define DVI_TIMING dvi_timing_800x600p_60hz
 
-
 #elif defined(MODE_960x540p_60Hz)
 // DVDD 1.25V (slower silicon may need the full 1.3, or just not work)
 // Frame resolution is almost the same as a PSP :)

software/libdvi/dvi_timing.c

@@ -34,6 +34,22 @@ const struct dvi_timing dvi_timing_800x600p_60hz = {
 	.v_active_lines    = 600
 };
 
+// 800x480p 60 Hz (note this doesn't seem to be a CEA mode, I just used the
+// output of `cvt 800 480 60`), 295 MHz bit clock
+const struct dvi_timing dvi_timing_800x480p_60hz = {
+	.h_sync_polarity = false,
+	.h_front_porch   = 24,
+	.h_sync_width    = 72,
+	.h_back_porch    = 96,
+	.h_active_pixels = 800,
+
+	.v_sync_polarity = true,
+	.v_front_porch   = 3,
+	.v_sync_width    = 10,
+	.v_back_porch    = 7,
+	.v_active_lines  = 480
+};
+
 // SVGA reduced blanking (355 MHz bit clock) -- valid CVT mode, less common
 // than fully-blanked SVGA, but doesn't require such a high system clock
 const struct dvi_timing dvi_timing_800x600p_reduced_60hz = {

software/libdvi/dvi_timing.h

@@ -72,6 +72,7 @@ struct dvi_lane_dma_cfg {
 extern const uint32_t dvi_ctrl_syms[4];
 
 extern const struct dvi_timing dvi_timing_640x480p_60hz;
+extern const struct dvi_timing dvi_timing_800x480p_60hz;
 extern const struct dvi_timing dvi_timing_800x600p_60hz;
 extern const struct dvi_timing dvi_timing_960x540p_60hz;
 extern const struct dvi_timing dvi_timing_1280x720p_30hz;