Modules/VESA - Changed to use DrvUtil functions
authorJohn Hodge <[email protected]>
Wed, 19 Oct 2011 04:31:50 +0000 (12:31 +0800)
committerJohn Hodge <[email protected]>
Wed, 19 Oct 2011 04:31:50 +0000 (12:31 +0800)
Modules/Display/VESA/main.c

index a227f17..02689ea 100644 (file)
@@ -25,7 +25,7 @@
  int   Vesa_Install(char **Arguments);\r
 Uint64 Vesa_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);\r
 Uint64 Vesa_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);\r
- int   Vesa_Ioctl(tVFS_Node *Node, int ID, void *Data);\r
+ int   Vesa_IOCtl(tVFS_Node *Node, int ID, void *Data);\r
  int   Vesa_Int_SetMode(int Mode);\r
  int   Vesa_Int_FindMode(tVideo_IOCtl_Mode *data);\r
  int   Vesa_Int_ModeInfo(tVideo_IOCtl_Mode *data);\r
@@ -41,7 +41,7 @@ tDevFS_Driver gVesa_DriverStruct = {
        {\r
        .Read = Vesa_Read,\r
        .Write = Vesa_Write,\r
-       .IOCtl = Vesa_Ioctl\r
+       .IOCtl = Vesa_IOCtl\r
        }\r
 };\r
 tMutex glVesa_Lock;\r
@@ -49,7 +49,6 @@ tVM8086       *gpVesa_BiosState;
  int   giVesaDriverId = -1;\r
 // --- Video Modes ---\r
  int   giVesaCurrentMode = 0;\r
- int   giVesaCurrentFormat = VIDEO_BUFFMT_TEXT;\r
 tVesa_Mode     *gVesa_Modes;\r
 tVesa_Mode     *gpVesaCurMode;\r
  int   giVesaModeCount = 0;\r
@@ -66,6 +65,7 @@ tDrvUtil_Video_2DHandlers     gVesa_2DFunctions = {
        Vesa_2D_Fill,\r
        Vesa_2D_Blit\r
 };\r
+tDrvUtil_Video_BufInfo gVesa_BufInfo;\r
 \r
 // === CODE ===\r
 int Vesa_Install(char **Arguments)\r
@@ -167,218 +167,26 @@ Uint64 Vesa_Read(tVFS_Node *Node, Uint64 off, Uint64 len, void *buffer)
  */\r
 Uint64 Vesa_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)\r
 {\r
-       ENTER("pNode XOffset XLength pBuffer", Node, Offset, Length, Buffer);\r
-\r
-       if(Buffer == NULL) {\r
-               LEAVE('i', 0);\r
-               return 0;\r
-       }\r
-\r
-       // Default Text mode\r
-       if( giVesaCurrentMode == 0 )\r
-       {\r
-               Uint16  *fb = (Uint16*)(KERNEL_BASE|0xB8000);\r
-               tVT_Char        *chars = Buffer;\r
-                int    rem;\r
-               \r
-               Length /= sizeof(tVT_Char);\r
-               Offset /= sizeof(tVT_Char);\r
-               \r
-               if( giVesaCurrentFormat != VIDEO_BUFFMT_TEXT ) {\r
-                       Log_Warning("VESA", "Vesa_Write - Mode 0 is not framebuffer");\r
-                       LEAVE('i', -1);\r
-                       return -1;\r
-               }\r
-               \r
-               if( Offset + Length > 25*80 ) {\r
-                       Log_Warning("VESA", "Vesa_Write - Framebuffer Overflow");\r
-                       LEAVE('i', 0);\r
-                       return 0;\r
-               }\r
-               \r
-               fb += 2*Offset;\r
-               LOG("fb = %p", fb);\r
-               for(rem = Length; rem --; fb ++, chars++)\r
-               {\r
-                       if( chars->Ch < 0x80 )\r
-                               *fb = chars->Ch & 0x7F;\r
-                       else\r
-                               *fb = 0x00;\r
-                       \r
-                       *fb |= (chars->FGCol & 0x888) == 0x888 ? 0x8 : 0;\r
-                       *fb |= (chars->FGCol & 0x700) > 0x300 ? 0x4 : 0;\r
-                       *fb |= (chars->FGCol & 0x070) > 0x030 ? 0x2 : 0;\r
-                       *fb |= (chars->FGCol & 0x007) > 0x003 ? 0x1 : 0;\r
-                       *fb |= (chars->BGCol & 0x888) == 0x888 ? 0x80 : 0;\r
-                       *fb |= (chars->BGCol & 0x700) > 0x300 ? 0x40 : 0;\r
-                       *fb |= (chars->BGCol & 0x070) > 0x030 ? 0x20 : 0;\r
-                       *fb |= (chars->BGCol & 0x007) > 0x003 ? 0x10 : 0;\r
-                       //LOG("%08x (%03x,%03x) = %04x",\r
-                       //      chars->Ch, chars->BGCol, chars->FGCol, *fb);\r
-               }\r
-               Length *= sizeof(tVT_Char);\r
-               LEAVE('X', Length);\r
-               return Length;\r
-       }\r
-\r
        if( gVesa_Modes[giVesaCurrentMode].framebuffer == 0 ) {\r
                Log_Warning("VESA", "Vesa_Write - Non-LFB Modes not yet supported.");\r
-               LEAVE('i', 0);\r
                return 0;\r
        }\r
-       \r
-       // Text Mode\r
-       switch( giVesaCurrentFormat )\r
-       {\r
-       case VIDEO_BUFFMT_TEXT:\r
-               {\r
-               tVT_Char        *chars = Buffer;\r
-                int    pitch = gVesa_Modes[giVesaCurrentMode].pitch;\r
-                int    depth = gVesa_Modes[giVesaCurrentMode].bpp;\r
-                int    bytes_per_px = gVesa_Modes[giVesaCurrentMode].bpp / 8;\r
-                int    widthInChars = gVesa_Modes[giVesaCurrentMode].width/giVT_CharWidth;\r
-                int    heightInChars = gVesa_Modes[giVesaCurrentMode].height/giVT_CharHeight;\r
-                int    x, y;\r
-               Uint8   *dest = (void*)gpVesa_Framebuffer;\r
-                int    i;\r
-               \r
-               Length /= sizeof(tVT_Char);\r
-               Offset /= sizeof(tVT_Char);\r
-               \r
-               if( depth == 32 )       depth = 24;     // Actually 24-colour bits\r
-               \r
-               LOG("gVesa_Modes[%i] = {height:%i, width:%i, pitch:%i}",\r
-                       giVesaCurrentMode,\r
-                       gVesa_Modes[giVesaCurrentMode].height,\r
-                       gVesa_Modes[giVesaCurrentMode].width,\r
-                       gVesa_Modes[giVesaCurrentMode].pitch\r
-                       );\r
-               x = Offset % widthInChars;\r
-               y = Offset / widthInChars;\r
-               LOG("(x,y) = (%i,%i) = [%i,%i]",\r
-                       x,\r
-                       y,\r
-                       x * giVT_CharWidth * bytes_per_px,\r
-                       y * giVT_CharHeight * pitch\r
-                       );\r
-               LOG("(w,h) = (%i,%i) = [%i,%i]",\r
-                       (int)(Length % widthInChars),\r
-                       (int)(Length / widthInChars),\r
-                       (int)((Length % widthInChars) * giVT_CharWidth * bytes_per_px),\r
-                       (int)((Length / widthInChars) * giVT_CharHeight * pitch)\r
-                       );\r
-               \r
-               // Sanity Check\r
-               if( Offset > (Uint64)(heightInChars*widthInChars) ) {\r
-                       LEAVE('i', 0);\r
-                       return 0;\r
-               }\r
-               if(y >= heightInChars) {\r
-                       LEAVE('i', 0);\r
-                       return 0;\r
-               }\r
-               \r
-               \r
-               if( (int)Offset + (int)Length > heightInChars*widthInChars ) {\r
-                       Log_Debug("VESA", "%i + %i > %i*%i (%i)",\r
-                               (int)Offset, (int)Length, heightInChars, widthInChars, heightInChars*widthInChars);\r
-                       Length = heightInChars*widthInChars - Offset;\r
-                       Log_Notice("VESA", "Clipping write size to %i characters", (int)Length);\r
-               }\r
-               \r
-               dest += y * giVT_CharHeight * pitch;\r
-               \r
-               LOG("dest = %p", dest);\r
-               \r
-               for( i = 0; i < (int)Length; i++ )\r
-               {\r
-                       if(\r
-                           !MM_GetPhysAddr( (tVAddr)dest + x*giVT_CharWidth*bytes_per_px )\r
-                       // || !MM_GetPhysAddr( (tVAddr)dest + x*giVT_CharWidth*depth/8 + pitch*giVT_CharHeight-1)\r
-                               )\r
-                       {\r
-                               Log_Notice("VESA", "Stopped at %i, not mapped", i);\r
-                               break;\r
-                       }\r
-                       if( y >= heightInChars )\r
-                       {\r
-                               Log_Notice("VESA", "Stopped at %i", i);\r
-                               break;\r
-                       }\r
-                       \r
-                       VT_Font_Render(\r
-                               chars->Ch,\r
-                               dest + x*giVT_CharWidth*bytes_per_px, bytes_per_px*8, pitch,\r
-                               VT_Colour12toN(chars->BGCol, depth),\r
-                               VT_Colour12toN(chars->FGCol, depth)\r
-                               );\r
-                       \r
-                       chars ++;\r
-                       x ++;\r
-                       if( x >= widthInChars )\r
-                       {\r
-                               x = 0;\r
-                               y ++;\r
-                               dest += pitch*giVT_CharHeight;\r
-                       }\r
-               }\r
-               Length = i * sizeof(tVT_Char);\r
-               }\r
-               break;\r
-       \r
-       case VIDEO_BUFFMT_FRAMEBUFFER:\r
-               {\r
-               Uint8   *destBuf = (Uint8*) ((Uint)gpVesa_Framebuffer + (Uint)Offset);\r
-               \r
-               if(gVesa_Modes[giVesaCurrentMode].fbSize < Offset+Length)\r
-               {\r
-                       Log_Warning("VESA", "Vesa_Write - Framebuffer Overflow");\r
-                       LEAVE('i', 0);\r
-                       return 0;\r
-               }\r
-               \r
-               LOG("buffer = %p", Buffer);\r
-               LOG("Updating Framebuffer (%p to %p)", destBuf, destBuf + (Uint)Length);\r
-               \r
-               //TODO: Handle non 32-bpp framebuffer modes\r
-               \r
-               // Copy to Frambuffer\r
-               memcpy(destBuf, Buffer, Length);\r
-               \r
-               LOG("BGA Framebuffer updated");\r
-               }\r
-               break;\r
-       \r
-       case VIDEO_BUFFMT_2DSTREAM:\r
-               Length = DrvUtil_Video_2DStream(\r
-                       NULL,   // Single framebuffer, so Ent is unused\r
-                       Buffer, Length, &gVesa_2DFunctions, sizeof(gVesa_2DFunctions)\r
-                       );\r
-               break;\r
-       \r
-       default:\r
-               LEAVE('i', -1);\r
-               return -1;\r
-       }\r
-       \r
-       LEAVE('X', Length);\r
-       return Length;\r
+\r
+       return DrvUtil_Video_WriteLFB(&gVesa_BufInfo, Offset, Length, Buffer);\r
 }\r
 \r
+const char *csaVESA_IOCtls[] = {DRV_IOCTLNAMES, DRV_VIDEO_IOCTLNAMES, NULL};\r
 /**\r
- * \fn int Vesa_Ioctl(vfs_node *node, int id, void *data)\r
  * \brief Handle messages to the device\r
  */\r
-int Vesa_Ioctl(tVFS_Node *Node, int ID, void *Data)\r
+int Vesa_IOCtl(tVFS_Node *Node, int ID, void *Data)\r
 {\r
         int    ret;\r
        //Log_Debug("VESA", "Vesa_Ioctl: (Node=%p, ID=%i, Data=%p)", Node, ID, Data);\r
        switch(ID)\r
        {\r
-       case DRV_IOCTL_TYPE:    return DRV_TYPE_VIDEO;\r
-       case DRV_IOCTL_IDENT:   memcpy("VESA", Data, 4);        return 1;\r
-       case DRV_IOCTL_VERSION: return VERSION;\r
-       \r
+       BASE_IOCTLS(DRV_TYPE_VIDEO, "VESA", VERSION, csaVESA_IOCtls);\r
+\r
        case VIDEO_IOCTL_GETSETMODE:\r
                if( !Data )     return giVesaCurrentMode;\r
                return Vesa_Int_SetMode( *(int*)Data );\r
@@ -389,13 +197,13 @@ int Vesa_Ioctl(tVFS_Node *Node, int ID, void *Data)
                return Vesa_Int_ModeInfo((tVideo_IOCtl_Mode*)Data);\r
        \r
        case VIDEO_IOCTL_SETBUFFORMAT:\r
-               ret = giVesaCurrentFormat;\r
-               if(Data)        giVesaCurrentFormat = *(int*)Data;\r
+               ret = gVesa_BufInfo.BufferFormat;\r
+               if(Data)        gVesa_BufInfo.BufferFormat = *(int*)Data;\r
                return ret;\r
        \r
        case VIDEO_IOCTL_SETCURSOR:     // Set cursor position\r
                #if !BLINKING_CURSOR\r
-               if(giVesaCursorX > 0)\r
+               if(giVesaCursorX >= 0)\r
                        Vesa_FlipCursor(Node);\r
                #endif\r
                giVesaCursorX = ((tVideo_IOCtl_Pos*)Data)->x;\r
@@ -426,9 +234,6 @@ int Vesa_Ioctl(tVFS_Node *Node, int ID, void *Data)
                }\r
                //Log_Debug("VESA", "Cursor position (%i,%i) Timer %i", giVesaCursorX, giVesaCursorY, giVesaCursorTimer);\r
                return 0;\r
-       \r
-//     case VIDEO_IOCTL_REQLFB:        // Request Linear Framebuffer\r
-//             return 0;\r
        }\r
        return 0;\r
 }\r
@@ -479,7 +284,13 @@ int Vesa_Int_SetMode(int mode)
        gpVesaCurMode = &gVesa_Modes[giVesaCurrentMode];\r
        \r
        Mutex_Release( &glVesa_Lock );\r
-       \r
+\r
+       gVesa_BufInfo.Framebuffer = gpVesa_Framebuffer;\r
+       gVesa_BufInfo.Pitch = gVesa_Modes[mode].pitch;\r
+       gVesa_BufInfo.Width = gVesa_Modes[mode].width;\r
+       gVesa_BufInfo.Height = gVesa_Modes[mode].height;\r
+       gVesa_BufInfo.Depth = gVesa_Modes[mode].bpp;    \r
+\r
        return 1;\r
 }\r
 \r

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