Added debug code to vterm, fixed userland _errno support

[tpg/acess2.git] / Kernel / drv / vterm.c

diff --git a/Kernel/drv/vterm.c b/Kernel/drv/vterm.c
index 5039214..8496b9e 100644 (file)
--- a/Kernel/drv/vterm.c
+++ b/Kernel/drv/vterm.c
@@ -1,6 +1,7 @@
 /*
  * Acess2 Virtual Terminal Driver
  */
+#define DEBUG  1
 #include <acess.h>
 #include <fs_devfs.h>
 #include <modules.h>
@@ -12,7 +13,7 @@
 // === CONSTANTS ===
 #define VERSION        ((0<<8)|(50))
 
-#define        NUM_VTS 7
+#define        NUM_VTS 8
 #define MAX_INPUT_CHARS32      64
 #define MAX_INPUT_CHARS8       (MAX_INPUT_CHARS32*4)
 #define VT_SCROLLBACK  1       // 2 Screens of text
@@ -359,42 +360,54 @@ int VT_Terminal_IOCtl(tVFS_Node *Node, int Id, void *Data)
 {
         int    *iData = Data;
        tVTerm  *term = Node->ImplPtr;
+       ENTER("pNode iId pData", Node, Id, Data);
+       
        switch(Id)
        {
-       case DRV_IOCTL_TYPE:    return DRV_TYPE_TERMINAL;
-       case DRV_IOCTL_IDENT:   memcpy(Data, "VT\0\0", 4);      return 0;
-       case DRV_IOCTL_VERSION: return VERSION;
-       case DRV_IOCTL_LOOKUP:  return 0;
+       case DRV_IOCTL_TYPE:
+               LEAVE('i', DRV_TYPE_TERMINAL);
+               return DRV_TYPE_TERMINAL;
+       case DRV_IOCTL_IDENT:
+               memcpy(Data, "VT\0\0", 4);
+               LEAVE('i', 0);
+               return 0;
+       case DRV_IOCTL_VERSION:
+               LEAVE('x', VERSION);
+               return VERSION;
+       case DRV_IOCTL_LOOKUP:
+               LEAVE('i', 0);
+               return 0;
        
        // Get/Set the mode (and apply any changes)
        case TERM_IOCTL_MODETYPE:
-               if(Data == NULL)        return term->Mode;
-               
-               if(term->Mode != *iData) {
-                       VT_int_ChangeMode(term, *iData);
+               if(Data != NULL)
+               {
+                       if(term->Mode != *iData)
+                               VT_int_ChangeMode(term, *iData);
+                       
+                       // Update the screen dimensions
+                       if(giVT_CurrentTerminal == Node->Inode)
+                               VT_SetTerminal( giVT_CurrentTerminal );
                }
-               
-               // Update the screen dimensions
-               if(giVT_CurrentTerminal == Node->Inode)
-                       VT_SetTerminal( giVT_CurrentTerminal );
-               break;
+               LEAVE('i', term->Mode);
+               return term->Mode;
        
        // Get/set the terminal width
        case TERM_IOCTL_WIDTH:
-               if(Data == NULL)        return term->Width;
-               term->Width = *iData;
-               break;
+               if(Data != NULL)        term->Width = *iData;
+               Log("VT_Terminal_IOCtl - RETURN term->Width = %i", term->Width);
+               LEAVE('i', term->Width);
+               return term->Width;
        
        // Get/set the terminal height
        case TERM_IOCTL_HEIGHT:
-               if(Data == NULL)        return term->Height;
-               term->Height = *iData;
-               break;
-       
-       default:
-               return -1;
+               if(Data != NULL)        term->Height = *iData;
+               Log("VT_Terminal_IOCtl - RETURN term->Height = %i", term->Height);
+               LEAVE('i', term->Height);
+               return term->Height;
        }
-       return 0;
+       LEAVE('i', -1);
+       return -1;
 }
 
 /**