From 229491b170438585aeede7f881751a1df212b199 Mon Sep 17 00:00:00 2001
From: John Hodge <tpg@ucc.asn.au>
Date: Sat, 14 Jan 2012 22:36:30 +0800
Subject: [PATCH] Modules/Tegra2Vid - Hacking up some investigations :)

---
 Modules/Display/Tegra2Vid/main.c   | 41 ++++++++++++++++++++++++++++--
 Modules/Display/Tegra2Vid/tegra2.h | 32 +++++++++++------------
 2 files changed, 55 insertions(+), 18 deletions(-)

diff --git a/Modules/Display/Tegra2Vid/main.c b/Modules/Display/Tegra2Vid/main.c
index deae8f6b..d9405be0 100644
--- a/Modules/Display/Tegra2Vid/main.c
+++ b/Modules/Display/Tegra2Vid/main.c
@@ -67,10 +67,47 @@ tVideo_IOCtl_Pos	gTegra2Vid_CursorPos;
 int Tegra2Vid_Install(char **Arguments)
 {
 //	KeyVal_Parse(&gTegra2Vid_KeyValueParser, Arguments);
-	
+
 	gpTegra2Vid_IOMem = (void*)MM_MapHWPages(gTegra2Vid_PhysBase, 256/4);
+	{
+		Log_Debug("Tegra2Vid", "Display CMD Registers");
+		for( int i = 0x000; i <= 0x01A; i ++ )
+			Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);
+		for( int i = 0x028; i <= 0x043; i ++ )
+			Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);
+		Log_Debug("Tegra2Vid", "Display COM Registers");
+		for( int i = 0x300; i <= 0x329; i ++ )
+			Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);
+		Log_Debug("Tegra2Vid", "Display DISP Registers");
+		for( int i = 0x400; i <= 0x446; i ++ )
+			Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);
+		for( int i = 0x480; i <= 0x484; i ++ )
+			Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);
+		for( int i = 0x4C0; i <= 0x4C1; i ++ )
+			Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);
+
+		Log_Debug("Tegra2Vid", "WINC_A Registers");
+		for( int i = 0x700; i <= 0x714; i ++ )
+			Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);
+		Log_Debug("Tegra2Vid", "WINBUF_A");
+		for( int i = 0x800; i <= 0x80A; i ++ )
+			Log_Debug("Tegra2Vid", "[0x%03x] = 0x%08x", i, gpTegra2Vid_IOMem[i]);
+	}
+//	return 1;
+	
+	giTegra2Vid_FramebufferSize =
+		(gpTegra2Vid_IOMem[DC_WIN_A_SIZE_0]&0xFFFF)
+		*(gpTegra2Vid_IOMem[DC_WIN_A_SIZE_0]>>16)*4;
+
+	Log_Debug("Tegra2Vid", "giTegra2Vid_FramebufferSize = 0x%x", giTegra2Vid_FramebufferSize);
+	gpTegra2Vid_Framebuffer = MM_MapHWPages(
+		gpTegra2Vid_IOMem[DC_WINBUF_A_START_ADDR_0],
+		(giTegra2Vid_FramebufferSize+PAGE_SIZE-1)/PAGE_SIZE
+		);
+	memset(gpTegra2Vid_Framebuffer, 0x1F, 0x1000);
+
 
-	Tegra2Vid_int_SetMode(4);
+//	Tegra2Vid_int_SetMode(4);
 
 	DevFS_AddDevice( &gTegra2Vid_DriverStruct );
 
diff --git a/Modules/Display/Tegra2Vid/tegra2.h b/Modules/Display/Tegra2Vid/tegra2.h
index b5666f33..a3f126b6 100644
--- a/Modules/Display/Tegra2Vid/tegra2.h
+++ b/Modules/Display/Tegra2Vid/tegra2.h
@@ -30,29 +30,29 @@ const int ciTegra2Vid_ModeCount = sizeof(caTegra2Vid_Modes)/sizeof(caTegra2Vid_M
 enum eTegra2_Disp_Regs
 {
 	DC_DISP_DISP_SIGNAL_OPTIONS0_0 = 0x400,
-	DC_DISP_DISP_SIGNAL_OPTIONS1_0,
-	DC_DISP_DISP_WIN_OPTIONS_0,
-	DC_DISP_MEM_HIGH_PRIORITY_0,
-	DC_DISP_MEM_HIGH_PRIORITY_TIMER_0,
-	DC_DISP_DISP_TIMING_OPTIONS_0,
-	DC_DISP_REF_TO_SYNC_0,
-	DC_DISP_SYNC_WIDTH_0,
-	DC_DISP_BACK_PORCH_0,
-	DC_DISP_DISP_ACTIVE_0,
-	DC_DISP_FRONT_PORCH_0,
+	DC_DISP_DISP_SIGNAL_OPTIONS1_0, // 401
+	DC_DISP_DISP_WIN_OPTIONS_0,	// 402
+	DC_DISP_MEM_HIGH_PRIORITY_0,	// 403
+	DC_DISP_MEM_HIGH_PRIORITY_TIMER_0,	// 404
+	DC_DISP_DISP_TIMING_OPTIONS_0,	// 405
+	DC_DISP_REF_TO_SYNC_0,  	// 406 (TrimSlice 0x0001 000B)
+	DC_DISP_SYNC_WIDTH_0,   	// 407 (TrimSlice 0x0004 003A)
+	DC_DISP_BACK_PORCH_0,   	// 408 (TrimSlice 0x0004 003A)
+	DC_DISP_DISP_ACTIVE_0,  	// 409 (TrimSlice 0x0300 0400)
+	DC_DISP_FRONT_PORCH_0,  	// 40A (TrimSlice 0x0004 003A)
 
-	DC_DISP_H_PULSE0_CONTROL_0,
+	DC_DISP_H_PULSE0_CONTROL_0,	// 40B
 
 	DC_DISP_DISP_COLOR_CONTROL_0 = 0x430,
 	
 	DC_WINC_A_COLOR_PALETTE_0 = 0x500,
 	DC_WINC_A_PALETTE_COLOR_EXT_0 = 0x600,
 	DC_WIN_A_WIN_OPTIONS_0 = 0x700,
-	DC_WIN_A_BYTE_SWAP_0,
-	DC_WIN_A_BUFFER_CONTROL_0,
-	DC_WIN_A_COLOR_DEPTH_0,
-	DC_WIN_A_POSITION_0,
-	DC_WIN_A_SIZE_0,
+	DC_WIN_A_BYTE_SWAP_0,   	// 701
+	DC_WIN_A_BUFFER_CONTROL_0,	// 702
+	DC_WIN_A_COLOR_DEPTH_0, 	// 703
+	DC_WIN_A_POSITION_0,    	// 704
+	DC_WIN_A_SIZE_0,        	// 705 (TrimSlice 0x0300 0400)
 	DC_WIN_A_PRESCALED_SIZE_0,
 	DC_WIN_A_H_INITIAL_DDA_0,
 	DC_WIN_A_V_INITIAL_DDA_0,
-- 
2.20.1