1 files changed, 246 insertions, 0 deletions
diff --git a/private/ntos/nthals/haldti/mips/jxdisp.c b/private/ntos/nthals/haldti/mips/jxdisp.c
new file mode 100644
index 000000000..3225a0a4f
--- /dev/null
+++ b/private/ntos/nthals/haldti/mips/jxdisp.c
@@ -0,0 +1,246 @@
+/*++
+
+Copyright (c) 1991  Microsoft Corporation
+
+Module Name:
+
+    jxdisp.c
+
+Abstract:
+
+    This module implements the HAL display initialization and output routines
+    for a MIPS R3000 or R4000 Jazz system.
+
+Author:
+
+    Andre Vachon    (andreva) 09-May-1992
+    David N. Cutler (davec)   27-Apr-1991
+
+Environment:
+
+    Kernel mode
+
+Revision History:
+
+--*/
+
+#include "halp.h"
+#include "eisa.h"
+#include "stdio.h"
+#include "string.h"
+
+#define CSI (CHAR)0x9b
+
+extern ULONG IoSpaceAlreadyMapped;
+
+static CHAR DisplayInitializationString[] = {CSI,'3','7',';','4','4','m',CSI,'2','J',0};
+static CHAR CarriageReturnString[]        = {13,0};
+
+static ULONG HalOwnsDisplay      = FALSE;
+static ULONG DisplayFile;
+
+PHAL_RESET_DISPLAY_PARAMETERS HalpResetDisplayParameters;
+
+
+VOID
+HalAcquireDisplayOwnership (
+    IN PHAL_RESET_DISPLAY_PARAMETERS  ResetDisplayParameters
+    )
+
+/*++
+
+Routine Description:
+
+    This routine switches ownership of the display away from the HAL to
+    the system display driver. It is called when the system has reached
+    a point during bootstrap where it is self supporting and can output
+    its own messages. Once ownership has passed to the system display
+    driver any attempts to output messages using HalDisplayString must
+    result in ownership of the display reverting to the HAL and the
+    display hardware reinitialized for use by the HAL.
+
+Arguments:
+
+    ResetDisplayParameters - if non-NULL the address of a function
+    the hal can call to reset the video card.  The function returns
+    TRUE if the display was reset.
+
+Return Value:
+
+    None.
+
+--*/
+
+{
+  ArcClose(DisplayFile);
+  HalOwnsDisplay = FALSE;
+
+  HalpResetDisplayParameters = ResetDisplayParameters;
+
+  return;
+}
+
+
+VOID
+HalDisplayString (
+    PUCHAR String
+    )
+
+/*++
+
+Routine Description:
+
+    This routine displays a character string on the display screen.
+
+Arguments:
+
+    String - Supplies a pointer to the characters that are to be displayed.
+
+Return Value:
+
+    None.
+
+--*/
+
+{
+ ULONG Count;
+
+ if (IoSpaceAlreadyMapped == FALSE) {
+   HalpMapIoSpace();
+   HalpInitializeX86DisplayAdapter();
+   IoSpaceAlreadyMapped = TRUE;
+ }
+
+ if (HalOwnsDisplay==FALSE) {
+
+     if (HalpResetDisplayParameters != NULL) {
+         (HalpResetDisplayParameters)(80,25);
+     }
+
+     HalpResetX86DisplayAdapter();
+     ArcOpen(ArcGetEnvironmentVariable("ConsoleOut"),ArcOpenWriteOnly,&DisplayFile);
+     ArcWrite(DisplayFile,DisplayInitializationString,strlen(DisplayInitializationString),&Count);
+     HalOwnsDisplay=TRUE;
+ }
+
+ ArcWrite(DisplayFile,String,strlen(String),&Count);
+ ArcWrite(DisplayFile,CarriageReturnString,strlen(CarriageReturnString),&Count);
+ return;
+
+}
+
+VOID
+HalQueryDisplayParameters (
+    OUT PULONG WidthInCharacters,
+    OUT PULONG HeightInLines,
+    OUT PULONG CursorColumn,
+    OUT PULONG CursorRow
+    )
+
+/*++
+
+Routine Description:
+
+    This routine return information about the display area and current
+    cursor position.
+
+Arguments:
+
+    WidthInCharacter - Supplies a pointer to a varible that receives
+        the width of the display area in characters.
+
+    HeightInLines - Supplies a pointer to a variable that receives the
+        height of the display area in lines.
+
+    CursorColumn - Supplies a pointer to a variable that receives the
+        current display column position.
+
+    CursorRow - Supplies a pointer to a variable that receives the
+        current display row position.
+
+Return Value:
+
+    None.
+
+--*/
+
+{
+    ARC_DISPLAY_STATUS *DisplayStatus;
+
+    //
+    // Get the display parameter values and return.
+    //
+
+    //
+    // If the HAL does not already own the display, then print an empty string.
+    // This guarantees that the file descriptor DisplayFile is valid.
+    //
+
+    if (!HalOwnsDisplay) {
+        HalDisplayString("");
+    }
+
+    //
+    // Make firmware call to get the display's current status
+    //
+
+    DisplayStatus      = ArcGetDisplayStatus(DisplayFile);
+
+    *WidthInCharacters = DisplayStatus->CursorMaxXPosition;
+    *HeightInLines     = DisplayStatus->CursorMaxYPosition;
+    *CursorColumn      = DisplayStatus->CursorXPosition;
+    *CursorRow         = DisplayStatus->CursorYPosition;
+
+    return;
+}
+
+VOID
+HalSetDisplayParameters (
+    IN ULONG CursorColumn,
+    IN ULONG CursorRow
+    )
+
+/*++
+
+Routine Description:
+
+    This routine set the current cursor position on the display area.
+
+Arguments:
+
+    CursorColumn - Supplies the new display column position.
+
+    CursorRow - Supplies a the new display row position.
+
+Return Value:
+
+    None.
+
+--*/
+
+{
+    CHAR  SetCursorPositionString[20];
+    ULONG Count;
+
+    //
+    // Set the display parameter values and return.
+    //
+
+    //
+    // If the HAL does not already own the display, then print an empty string.
+    // This guarantees that the file descriptor DisplayFile is valid.
+    //
+
+    if (!HalOwnsDisplay) {
+        HalDisplayString("");
+    }
+
+    //
+    // Build ANSI sequence to set the cursor position.
+    //
+
+    sprintf(SetCursorPositionString,"%c%d;%dH",CSI,CursorRow,CursorColumn);
+    ArcWrite(DisplayFile,SetCursorPositionString,strlen(SetCursorPositionString),&Count);
+
+    return;
+}