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Annotation of ntddk/src/input/sermouse/debug.c, revision 1.1.1.1

1.1       root        1: /*++
                      2: 
                      3: Copyright (c) 1993  Microsoft Corporation
                      4: Copyright (c) 1993  Logitech Inc.
                      5: 
                      6: Module Name:
                      7: 
                      8:     debug.c
                      9: 
                     10: Abstract:
                     11: 
                     12:     Debugging support routines.
                     13: 
                     14: Environment:
                     15: 
                     16:     Kernel mode only.
                     17: 
                     18: Notes:
                     19: 
                     20: Revision History:
                     21: 
                     22: --*/
                     23: 
                     24: #include "stdarg.h"
                     25: #include "stdio.h"
                     26: #include "string.h"
                     27: #include "ntddk.h"
                     28: #include "debug.h"
                     29: 
                     30: 
                     31: #if DBG
                     32: //
                     33: // Declare the global debug flag for this driver.
                     34: //
                     35: 
                     36: ULONG SerialMouseDebug = 0;
                     37: 
                     38: //
                     39: // Undocumented call (prototype).
                     40: // Use it to avoid timing problems and conflicts with the serial device. 
                     41: // This call is valid only during initialization and before the display 
                     42: // driver takes ownership of the display.
                     43: //
                     44: 
                     45: VOID HalDisplayString(PSZ Buffer);
                     46: 
                     47: static ULONG DebugOutput = DBG_SERIAL;
                     48: 
                     49: VOID
                     50: _SerMouSetDebugOutput(
                     51:     IN ULONG Destination
                     52:     )
                     53: /*++
                     54: 
                     55: Routine Description:
                     56: 
                     57:    Set the destination of the debugging string. The options are:
                     58:        DBG_COLOR:    Main computer screen.
                     59:        DBG_SERIAL:   Serial debugger port
                     60: 
                     61:    Note: The output to the DBG_COLOR screen can be used only during 
                     62:    initilialization before we switch to graphical mode.
                     63: 
                     64: Arguments:
                     65: 
                     66:     Destination - The debugging string destination.
                     67: 
                     68: Return Value:
                     69: 
                     70:     None.
                     71: 
                     72: --*/
                     73: {
                     74:     DebugOutput = Destination;
                     75:     return;
                     76: }
                     77: 
                     78: int
                     79: _SerMouGetDebugOutput(
                     80:     VOID
                     81:     )
                     82: /*++
                     83: 
                     84: Routine Description:
                     85: 
                     86:     Get the current debugger string output destination.
                     87: 
                     88: Arguments:
                     89: 
                     90:     None.
                     91: 
                     92: Return Value:
                     93: 
                     94:     Current debugging output destination.
                     95: 
                     96: --*/
                     97: {
                     98:     return DebugOutput;
                     99: }
                    100: 
                    101: VOID
                    102: SerMouDebugPrint(
                    103:     ULONG DebugPrintLevel,
                    104:     PCSZ DebugMessage,
                    105:     ...
                    106:     )
                    107: 
                    108: /*++
                    109: 
                    110: Routine Description:
                    111: 
                    112:     Debug print routine.
                    113: 
                    114: Arguments:
                    115: 
                    116:     Debug print level between 0 and 3, with 3 being the most verbose.
                    117: 
                    118: Return Value:
                    119: 
                    120:     None.
                    121: 
                    122: --*/
                    123: 
                    124: {
                    125:     va_list ap;
                    126: 
                    127:     va_start(ap, DebugMessage);
                    128: 
                    129:     if (DebugPrintLevel <= SerialMouseDebug) {
                    130: 
                    131:         CHAR buffer[128];
                    132: 
                    133:         (VOID) vsprintf(buffer, DebugMessage, ap);
                    134: 
                    135:         if (DebugOutput & DBG_SERIAL) {
                    136:             DbgPrint(buffer);
                    137:         }
                    138: 
                    139:         if (DebugOutput & DBG_COLOR) {
                    140:             HalDisplayString(buffer);
                    141:         }
                    142:     }
                    143: 
                    144:     va_end(ap);
                    145: 
                    146: }
                    147: #endif

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