X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Modules%2FDisplay%2FVESA%2Fmain.c;h=55083b043a808ed16f07775536beb6f6ffc12143;hb=8de6b4e1a2050289458d6489551eb61b6c1d3645;hp=1d803fb5caa4c64c73ceb2bb7ef1c0524a9a6bc3;hpb=61f3375f76620a66b519a0e69d4cdf75aaf5854b;p=tpg%2Facess2.git

diff --git a/Modules/Display/VESA/main.c b/Modules/Display/VESA/main.c
index 1d803fb5..55083b04 100644
--- a/Modules/Display/VESA/main.c
+++ b/Modules/Display/VESA/main.c
@@ -2,12 +2,12 @@
  * AcessOS 1
  * Video BIOS Extensions (Vesa) Driver
  */
-#define DEBUG	1
+#define DEBUG	0
 #define VERSION	0x100
 
 #include <acess.h>
 #include <vfs.h>
-#include <tpl_drv_video.h>
+#include <api_drv_video.h>
 #include <fs_devfs.h>
 #include <modules.h>
 #include <vm8086.h>
@@ -15,15 +15,23 @@
 
 // === CONSTANTS ===
 #define	FLAG_LFB	0x1
+#define VESA_DEFAULT_FRAMEBUFFER	(KERNEL_BASE|0xA0000)
+#define BLINKING_CURSOR	1
+#if BLINKING_CURSOR
+# define VESA_CURSOR_PERIOD	1000
+#endif
 
 // === PROTOTYPES ===
  int	Vesa_Install(char **Arguments);
 Uint64	Vesa_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
 Uint64	Vesa_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
- int	Vesa_Ioctl(tVFS_Node *Node, int ID, void *Data);
+ int	Vesa_IOCtl(tVFS_Node *Node, int ID, void *Data);
  int	Vesa_Int_SetMode(int Mode);
  int	Vesa_Int_FindMode(tVideo_IOCtl_Mode *data);
  int	Vesa_Int_ModeInfo(tVideo_IOCtl_Mode *data);
+void	Vesa_int_HideCursor(void);
+void	Vesa_int_ShowCursor(void);
+void	Vesa_FlipCursor(void *Arg);
 
 // === GLOBALS ===
 MODULE_DEFINE(0, VERSION, Vesa, Vesa_Install, NULL, "PCI", "VM8086", NULL);
@@ -32,33 +40,40 @@ tDevFS_Driver	gVesa_DriverStruct = {
 	{
 	.Read = Vesa_Read,
 	.Write = Vesa_Write,
-	.IOCtl = Vesa_Ioctl
+	.IOCtl = Vesa_IOCtl
 	}
 };
-tSpinlock	glVesa_Lock;
+tMutex	glVesa_Lock;
 tVM8086	*gpVesa_BiosState;
- int	giVesaCurrentMode = 0;
- int	giVesaCurrentFormat = VIDEO_BUFFMT_TEXT;
  int	giVesaDriverId = -1;
-char	*gVesaFramebuffer = (void*)0xC00A0000;
+// --- Video Modes ---
+ int	giVesaCurrentMode = 0;
 tVesa_Mode	*gVesa_Modes;
+tVesa_Mode	*gpVesaCurMode;
  int	giVesaModeCount = 0;
- int	giVesaPageCount = 0;
+ int	gbVesaModesChecked;
+// --- Framebuffer ---
+char	*gpVesa_Framebuffer = (void*)VESA_DEFAULT_FRAMEBUFFER;
+ int	giVesaPageCount = 0;	//!< Framebuffer size in pages
+// --- Cursor Control ---
+ int	giVesaCursorX = -1;
+ int	giVesaCursorY = -1;
+ int	giVesaCursorTimer = -1;	// Invalid timer
+ int	gbVesa_CursorVisible = 0;
+// --- 2D Video Stream Handlers ---
+tDrvUtil_Video_BufInfo	gVesa_BufInfo;
 
-//CODE
+// === CODE ===
 int Vesa_Install(char **Arguments)
 {
 	tVesa_CallInfo	*info;
 	tFarPtr	infoPtr;
-	tVesa_CallModeInfo	*modeinfo;
-	tFarPtr	modeinfoPtr;
 	Uint16	*modes;
 	int	i;
 	
 	// Allocate Info Block
 	gpVesa_BiosState = VM8086_Init();
 	info = VM8086_Allocate(gpVesa_BiosState, 512, &infoPtr.seg, &infoPtr.ofs);
-	modeinfo = VM8086_Allocate(gpVesa_BiosState, 512, &modeinfoPtr.seg, &modeinfoPtr.ofs);
 	// Set Requested Version
 	memcpy(info->signature, "VBE2", 4);
 	// Set Registers
@@ -67,17 +82,19 @@ int Vesa_Install(char **Arguments)
 	// Call Interrupt
 	VM8086_Int(gpVesa_BiosState, 0x10);
 	if(gpVesa_BiosState->AX != 0x004F) {
-		Log_Warning("Vesa", "Vesa_Install - VESA/VBE Unsupported (AX = 0x%x)\n", gpVesa_BiosState->AX);
+		Log_Warning("VESA", "Vesa_Install - VESA/VBE Unsupported (AX = 0x%x)", gpVesa_BiosState->AX);
 		return MODULE_ERR_NOTNEEDED;
 	}
 	
-	Log_Debug("Vesa", "info->VideoModes = %04x:%04x", info->VideoModes.seg, info->VideoModes.ofs);
+	//Log_Debug("VESA", "info->VideoModes = %04x:%04x", info->VideoModes.seg, info->VideoModes.ofs);
 	modes = (Uint16 *) VM8086_GetPointer(gpVesa_BiosState, info->VideoModes.seg, info->VideoModes.ofs);
 	
 	// Read Modes
 	for( giVesaModeCount = 0; modes[giVesaModeCount] != 0xFFFF; giVesaModeCount++ );
 	gVesa_Modes = (tVesa_Mode *)malloc( giVesaModeCount * sizeof(tVesa_Mode) );
 	
+	Log_Debug("VESA", "%i Modes", giVesaModeCount);
+	
 	// Insert Text Mode
 	gVesa_Modes[0].width = 80;
 	gVesa_Modes[0].height = 25;
@@ -90,36 +107,9 @@ int Vesa_Install(char **Arguments)
 	for( i = 1; i < giVesaModeCount; i++ )
 	{
 		gVesa_Modes[i].code = modes[i];
-		// Get Mode info
-		gpVesa_BiosState->AX = 0x4F01;
-		gpVesa_BiosState->CX = gVesa_Modes[i].code;
-		gpVesa_BiosState->ES = modeinfoPtr.seg;
-		gpVesa_BiosState->DI = modeinfoPtr.ofs;
-		VM8086_Int(gpVesa_BiosState, 0x10);
-		
-		// Parse Info
-		gVesa_Modes[i].flags = 0;
-		if ( (modeinfo->attributes & 0x90) == 0x90 )
-		{
-			gVesa_Modes[i].flags |= FLAG_LFB;
-			gVesa_Modes[i].framebuffer = modeinfo->physbase;
-			gVesa_Modes[i].fbSize = modeinfo->Xres*modeinfo->Yres*modeinfo->bpp/8;
-		} else {
-			gVesa_Modes[i].framebuffer = 0;
-			gVesa_Modes[i].fbSize = 0;
-		}
-		
-		gVesa_Modes[i].pitch = modeinfo->pitch;
-		gVesa_Modes[i].width = modeinfo->Xres;
-		gVesa_Modes[i].height = modeinfo->Yres;
-		gVesa_Modes[i].bpp = modeinfo->bpp;
-		
-		#if DEBUG
-		Log_Log("Vesa", "0x%x - %ix%ix%i",
-			gVesa_Modes[i].code, gVesa_Modes[i].width, gVesa_Modes[i].height, gVesa_Modes[i].bpp);
-		#endif
 	}
-	
+
+//	VM8086_Deallocate( info );
 	
 	// Install Device
 	giVesaDriverId = DevFS_AddDevice( &gVesa_DriverStruct );
@@ -128,6 +118,53 @@ int Vesa_Install(char **Arguments)
 	return MODULE_ERR_OK;
 }
 
+void Vesa_int_FillModeList(void)
+{
+	if( !gbVesaModesChecked )
+	{
+		 int	i;
+		tVesa_CallModeInfo	*modeinfo;
+		tFarPtr	modeinfoPtr;
+		
+		modeinfo = VM8086_Allocate(gpVesa_BiosState, 512, &modeinfoPtr.seg, &modeinfoPtr.ofs);
+		for( i = 1; i < giVesaModeCount; i ++ )
+		{
+			// Get Mode info
+			gpVesa_BiosState->AX = 0x4F01;
+			gpVesa_BiosState->CX = gVesa_Modes[i].code;
+			gpVesa_BiosState->ES = modeinfoPtr.seg;
+			gpVesa_BiosState->DI = modeinfoPtr.ofs;
+			VM8086_Int(gpVesa_BiosState, 0x10);
+			
+			// Parse Info
+			gVesa_Modes[i].flags = 0;
+			if ( (modeinfo->attributes & 0x90) == 0x90 )
+			{
+				gVesa_Modes[i].flags |= FLAG_LFB;
+				gVesa_Modes[i].framebuffer = modeinfo->physbase;
+				gVesa_Modes[i].fbSize = modeinfo->Yres*modeinfo->pitch;
+			} else {
+				gVesa_Modes[i].framebuffer = 0;
+				gVesa_Modes[i].fbSize = 0;
+			}
+			
+			gVesa_Modes[i].pitch = modeinfo->pitch;
+			gVesa_Modes[i].width = modeinfo->Xres;
+			gVesa_Modes[i].height = modeinfo->Yres;
+			gVesa_Modes[i].bpp = modeinfo->bpp;
+			
+			#if DEBUG
+			Log_Log("VESA", "0x%x - %ix%ix%i",
+				gVesa_Modes[i].code, gVesa_Modes[i].width, gVesa_Modes[i].height, gVesa_Modes[i].bpp);
+			#endif
+		}
+	
+//		VM8086_Deallocate( modeinfo );
+		
+		gbVesaModesChecked = 1;
+	}
+}
+
 /* Read from the framebuffer
  */
 Uint64 Vesa_Read(tVFS_Node *Node, Uint64 off, Uint64 len, void *buffer)
@@ -143,157 +180,26 @@ Uint64 Vesa_Read(tVFS_Node *Node, Uint64 off, Uint64 len, void *buffer)
  */
 Uint64 Vesa_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
 {
-	ENTER("pNode XOffset XLength pBuffer", Node, Offset, Length, Buffer);
-
-	if(Buffer == NULL) {
-		LEAVE('i', 0);
-		return 0;
-	}
-
-	// Default Text mode
-	if( giVesaCurrentMode == 0 )
-	{
-		Uint16	*fb = (Uint16*)(KERNEL_BASE|0xB8000);
-		tVT_Char	*chars = Buffer;
-		 int	rem;
-		
-		if( giVesaCurrentFormat != VIDEO_BUFFMT_TEXT ) {
-			Log_Warning("VESA", "Vesa_Write - Mode 0 is not framebuffer");
-			LEAVE('i', -1);
-			return -1;
-		}
-		
-		if( Offset + Length > 25*80*sizeof(tVT_Char) ) {
-			Log_Warning("VESA", "Vesa_Write - Framebuffer Overflow");
-			LEAVE('i', 0);
-			return 0;
-		}
-		
-		fb += 2*(Offset/sizeof(tVT_Char));
-		LOG("fb = %p", fb);
-		for(rem = Length / sizeof(tVT_Char); rem --; fb ++, chars++)
-		{
-			if( chars->Ch < 0x80 )
-				*fb = chars->Ch & 0x7F;
-			else
-				*fb = 0x00;
-			
-			*fb |= (chars->FGCol & 0x888) == 0x888 ? 0x8 : 0;
-			*fb |= (chars->FGCol & 0x700) > 0x300 ? 0x4 : 0;
-			*fb |= (chars->FGCol & 0x070) > 0x030 ? 0x2 : 0;
-			*fb |= (chars->FGCol & 0x007) > 0x003 ? 0x1 : 0;
-			*fb |= (chars->BGCol & 0x888) == 0x888 ? 0x80 : 0;
-			*fb |= (chars->BGCol & 0x700) > 0x300 ? 0x40 : 0;
-			*fb |= (chars->BGCol & 0x070) > 0x030 ? 0x20 : 0;
-			*fb |= (chars->BGCol & 0x007) > 0x003 ? 0x10 : 0;
-			//LOG("%08x (%03x,%03x) = %04x",
-			//	chars->Ch, chars->BGCol, chars->FGCol, *fb);
-		}
-		Length /= sizeof(tVT_Char);
-		Length *= sizeof(tVT_Char);
-		LEAVE('X', Length);
-		return Length;
-	}
-
 	if( gVesa_Modes[giVesaCurrentMode].framebuffer == 0 ) {
 		Log_Warning("VESA", "Vesa_Write - Non-LFB Modes not yet supported.");
-		LEAVE('i', 0);
 		return 0;
 	}
-	
-	// Text Mode
-	switch( giVesaCurrentFormat )
-	{
-	case VIDEO_BUFFMT_TEXT:
-		{
-		tVT_Char	*chars = Buffer;
-		 int	pitch = gVesa_Modes[giVesaCurrentMode].width * giVT_CharWidth;
-		 int	x, y;
-		Uint32	*dest;
-		 int	rem;
-		
-		Offset /= sizeof(tVT_Char);
-		dest = (void*)gVesaFramebuffer;
-		LOG("gVesa_Modes[%i].width = %i", giVesaCurrentMode, gVesa_Modes[giVesaCurrentMode].width);
-		x = (Offset % (gVesa_Modes[giVesaCurrentMode].width/giVT_CharWidth)) * giVT_CharWidth;
-		y = (Offset / (gVesa_Modes[giVesaCurrentMode].width/giVT_CharWidth)) * giVT_CharHeight;
-		LOG("(x,y) = (%i,%i)", x, y);
-		
-		// Sanity Check
-		if(y > gVesa_Modes[giVesaCurrentMode].height) {
-			LEAVE('i', 0);
-			return 0;
-		}
-		
-		dest += y * pitch;
-		dest += x * giVT_CharWidth;
-		for( rem = Length / sizeof(tVT_Char); rem--; )
-		{
-			VT_Font_Render(
-				chars->Ch,
-				dest, pitch,
-				VT_Colour12to24(chars->BGCol),
-				VT_Colour12to24(chars->FGCol)
-				);
-			
-			dest += giVT_CharWidth;
-			
-			chars ++;
-			x += giVT_CharWidth;
-			if( x >= pitch ) {
-				x = 0;
-				y += giVT_CharHeight;
-				dest += pitch*(giVT_CharHeight-1);
-			}
-		}
-		Length /= sizeof(tVT_Char);
-		Length *= sizeof(tVT_Char);
-		}
-		break;
-	
-	case VIDEO_BUFFMT_FRAMEBUFFER:
-		{
-		Uint8	*destBuf = (Uint8*) ((Uint)gVesaFramebuffer + (Uint)Offset);
-		
-		if(gVesa_Modes[giVesaCurrentMode].fbSize < Offset+Length)
-		{
-			Log_Warning("VESA", "Vesa_Write - Framebuffer Overflow");
-			LEAVE('i', 0);
-			return 0;
-		}
-		
-		LOG("buffer = %p", Buffer);
-		LOG("Updating Framebuffer (%p to %p)", destBuf, destBuf + (Uint)Length);
-		
-		
-		// Copy to Frambuffer
-		memcpy(destBuf, Buffer, Length);
-		
-		LOG("BGA Framebuffer updated");
-		}
-		break;
-	default:
-		LEAVE('i', -1);
-		return -1;
-	}
-	
-	LEAVE('X', Length);
-	return Length;
+
+	return DrvUtil_Video_WriteLFB(&gVesa_BufInfo, Offset, Length, Buffer);
 }
 
+const char *csaVESA_IOCtls[] = {DRV_IOCTLNAMES, DRV_VIDEO_IOCTLNAMES, NULL};
 /**
- * \fn int Vesa_Ioctl(vfs_node *node, int id, void *data)
  * \brief Handle messages to the device
  */
-int Vesa_Ioctl(tVFS_Node *Node, int ID, void *Data)
+int Vesa_IOCtl(tVFS_Node *Node, int ID, void *Data)
 {
 	 int	ret;
+	//Log_Debug("VESA", "Vesa_Ioctl: (Node=%p, ID=%i, Data=%p)", Node, ID, Data);
 	switch(ID)
 	{
-	case DRV_IOCTL_TYPE:	return DRV_TYPE_VIDEO;
-	case DRV_IOCTL_IDENT:	memcpy("VESA", Data, 4);	return 1;
-	case DRV_IOCTL_VERSION:	return VERSION;
-	
+	BASE_IOCTLS(DRV_TYPE_VIDEO, "VESA", VERSION, csaVESA_IOCtls);
+
 	case VIDEO_IOCTL_GETSETMODE:
 		if( !Data )	return giVesaCurrentMode;
 		return Vesa_Int_SetMode( *(int*)Data );
@@ -304,34 +210,49 @@ int Vesa_Ioctl(tVFS_Node *Node, int ID, void *Data)
 		return Vesa_Int_ModeInfo((tVideo_IOCtl_Mode*)Data);
 	
 	case VIDEO_IOCTL_SETBUFFORMAT:
-		ret = giVesaCurrentFormat;
-		if(Data)	giVesaCurrentFormat = *(int*)Data;
+		Vesa_int_HideCursor();
+		ret = gVesa_BufInfo.BufferFormat;
+		if(Data)	gVesa_BufInfo.BufferFormat = *(int*)Data;
+		if(gVesa_BufInfo.BufferFormat == VIDEO_BUFFMT_TEXT)
+			DrvUtil_Video_SetCursor( &gVesa_BufInfo, &gDrvUtil_TextModeCursor );
+		Vesa_int_ShowCursor();
 		return ret;
 	
-	case VIDEO_IOCTL_REQLFB:	// Request Linear Framebuffer
+	case VIDEO_IOCTL_SETCURSOR:	// Set cursor position
+		Vesa_int_HideCursor();
+		giVesaCursorX = ((tVideo_IOCtl_Pos*)Data)->x;
+		giVesaCursorY = ((tVideo_IOCtl_Pos*)Data)->y;
+		Vesa_int_ShowCursor();
+		return 0;
+	
+	case VIDEO_IOCTL_SETCURSORBITMAP:
+		DrvUtil_Video_SetCursor( &gVesa_BufInfo, Data );
 		return 0;
 	}
 	return 0;
 }
 
+/**
+ * \brief Updates the video mode
+ */
 int Vesa_Int_SetMode(int mode)
 {	
-	#if DEBUG
-	Log("Vesa_Int_SetMode: (mode=%i)", mode);
-	#endif
-	
 	// Sanity Check values
 	if(mode < 0 || mode > giVesaModeCount)	return -1;
-	
+
 	// Check for fast return
 	if(mode == giVesaCurrentMode)	return 1;
 	
-	LOCK( &glVesa_Lock );
+	Vesa_int_FillModeList();
+
+	Time_RemoveTimer(giVesaCursorTimer);
+	giVesaCursorTimer = -1;
+	
+	Mutex_Acquire( &glVesa_Lock );
 	
 	gpVesa_BiosState->AX = 0x4F02;
 	gpVesa_BiosState->BX = gVesa_Modes[mode].code;
 	if(gVesa_Modes[mode].flags & FLAG_LFB) {
-		Log_Log("VESA", "Using LFB");
 		gpVesa_BiosState->BX |= 0x4000;	// Bit 14 - Use LFB
 	}
 	
@@ -339,18 +260,30 @@ int Vesa_Int_SetMode(int mode)
 	VM8086_Int(gpVesa_BiosState, 0x10);
 	
 	// Map Framebuffer
-	MM_UnmapHWPages((tVAddr)gVesaFramebuffer, giVesaPageCount);
+	if( (tVAddr)gpVesa_Framebuffer != VESA_DEFAULT_FRAMEBUFFER )
+		MM_UnmapHWPages((tVAddr)gpVesa_Framebuffer, giVesaPageCount);
 	giVesaPageCount = (gVesa_Modes[mode].fbSize + 0xFFF) >> 12;
-	gVesaFramebuffer = (void*)MM_MapHWPages(gVesa_Modes[mode].framebuffer, giVesaPageCount);
+	gpVesa_Framebuffer = (void*)MM_MapHWPages(gVesa_Modes[mode].framebuffer, giVesaPageCount);
 	
-	Log("Vesa", "Framebuffer (Phys) = 0x%x", gVesa_Modes[mode].framebuffer);
-	Log("Vesa", "Framebuffer (Virt) = 0x%x", gVesaFramebuffer);
+	Log_Log("VESA", "Setting mode to %i (%ix%i %ibpp) %p[0x%x] maps %P",
+		mode,
+		gVesa_Modes[mode].width, gVesa_Modes[mode].height,
+		gVesa_Modes[mode].bpp,
+		gpVesa_Framebuffer, giVesaPageCount << 12, gVesa_Modes[mode].framebuffer
+		);
 	
 	// Record Mode Set
 	giVesaCurrentMode = mode;
+	gpVesaCurMode = &gVesa_Modes[giVesaCurrentMode];
 	
-	RELEASE( &glVesa_Lock );
-	
+	Mutex_Release( &glVesa_Lock );
+
+	gVesa_BufInfo.Framebuffer = gpVesa_Framebuffer;
+	gVesa_BufInfo.Pitch = gVesa_Modes[mode].pitch;
+	gVesa_BufInfo.Width = gVesa_Modes[mode].width;
+	gVesa_BufInfo.Height = gVesa_Modes[mode].height;
+	gVesa_BufInfo.Depth = gVesa_Modes[mode].bpp;	
+
 	return 1;
 }
 
@@ -361,24 +294,43 @@ int Vesa_Int_FindMode(tVideo_IOCtl_Mode *data)
 	 int	factor, tmp;
 	
 	ENTER("idata->width idata->height idata->bpp", data->width, data->height, data->bpp);
+
+	Vesa_int_FillModeList();
 	
 	for(i=0;i<giVesaModeCount;i++)
 	{
 		LOG("Mode %i (%ix%ix%i)", i, gVesa_Modes[i].width, gVesa_Modes[i].height, gVesa_Modes[i].bpp);
 	
-		if(gVesa_Modes[i].width == data->width
-		&& gVesa_Modes[i].height == data->height
-		&& gVesa_Modes[i].bpp == data->bpp)
+		if(gVesa_Modes[i].width == data->width && gVesa_Modes[i].height == data->height)
 		{
-			LOG("Perfect!");
-			best = i;
-			break;
+			//if( (data->bpp == 32 || data->bpp == 24)
+			// && (gVesa_Modes[i].bpp == 32 || gVesa_Modes[i].bpp == 24) )
+			if( data->bpp == gVesa_Modes[i].bpp )
+			{
+				LOG("Perfect!");
+				best = i;
+				break;
+			}
 		}
 		
-		tmp = gVesa_Modes[i].width * gVesa_Modes[i].height * gVesa_Modes[i].bpp;
-		tmp -= data->width * data->height * data->bpp;
+		tmp = gVesa_Modes[i].width * gVesa_Modes[i].height;
+		tmp -= data->width * data->height;
 		tmp = tmp < 0 ? -tmp : tmp;
-		factor = tmp * 100 / (data->width * data->height * data->bpp);
+		factor = tmp * 1000 / (data->width * data->height);
+		
+		if( data->bpp == 8 && gVesa_Modes[i].bpp != 8 )	continue;
+		if( data->bpp == 16 && gVesa_Modes[i].bpp != 16 )	continue;
+		
+		if( (data->bpp == 32 || data->bpp == 24)
+		 && (gVesa_Modes[i].bpp == 32 || gVesa_Modes[i].bpp == 24) )
+		{
+			if( data->bpp == gVesa_Modes[i].bpp )
+				factor /= 2;
+		}
+		else {
+			if( data->bpp != gVesa_Modes[i].bpp )
+				continue ;
+		}
 		
 		LOG("factor = %i", factor);
 		
@@ -399,8 +351,67 @@ int Vesa_Int_FindMode(tVideo_IOCtl_Mode *data)
 int Vesa_Int_ModeInfo(tVideo_IOCtl_Mode *data)
 {
 	if(data->id < 0 || data->id > giVesaModeCount)	return -1;
+
+	Vesa_int_FillModeList();
+
 	data->width = gVesa_Modes[data->id].width;
 	data->height = gVesa_Modes[data->id].height;
 	data->bpp = gVesa_Modes[data->id].bpp;
 	return 1;
 }
+
+void Vesa_int_HideCursor(void)
+{
+	DrvUtil_Video_RemoveCursor( &gVesa_BufInfo );
+	#if BLINKING_CURSOR
+	if(giVesaCursorTimer != -1) {
+		Time_RemoveTimer(giVesaCursorTimer);
+		giVesaCursorTimer = -1;
+	}
+	#endif
+}
+
+void Vesa_int_ShowCursor(void)
+{
+	gbVesa_CursorVisible = (giVesaCursorX >= 0);
+	if(gVesa_BufInfo.BufferFormat == VIDEO_BUFFMT_TEXT)
+	{
+		DrvUtil_Video_DrawCursor(
+			&gVesa_BufInfo,
+			giVesaCursorX*giVT_CharWidth,
+			giVesaCursorY*giVT_CharHeight
+			);
+		#if BLINKING_CURSOR
+		giVesaCursorTimer = Time_CreateTimer(VESA_CURSOR_PERIOD, Vesa_FlipCursor, NULL);
+		#endif
+	}
+	else
+		DrvUtil_Video_DrawCursor(
+			&gVesa_BufInfo,
+			giVesaCursorX,
+			giVesaCursorY
+			);
+}
+
+/**
+ * \brief Swaps the text cursor on/off
+ */
+void Vesa_FlipCursor(void *Arg)
+{
+	if( gVesa_BufInfo.BufferFormat != VIDEO_BUFFMT_TEXT )
+		return ;
+
+	if( gbVesa_CursorVisible )
+		DrvUtil_Video_RemoveCursor(&gVesa_BufInfo);
+	else
+		DrvUtil_Video_DrawCursor(&gVesa_BufInfo,
+			giVesaCursorX*giVT_CharWidth,
+			giVesaCursorY*giVT_CharHeight
+			);
+	gbVesa_CursorVisible = !gbVesa_CursorVisible;
+		
+	#if BLINKING_CURSOR
+	giVesaCursorTimer = Time_CreateTimer(VESA_CURSOR_PERIOD, Vesa_FlipCursor, Arg);
+	#endif
+}
+