[4164] | 1 | /* $Id: log.c,v 1.2 2000-09-02 21:08:13 bird Exp $
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[847] | 2 | *
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| 3 | * log - C-style logging - kprintf.
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| 4 | *
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| 5 | * Copyright (c) 1998-1999 knut st. osmundsen
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| 6 | *
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| 7 | */
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| 8 |
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| 9 |
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| 10 | /*@Const************************************************************************
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| 11 | * Defined Constants *
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| 12 | *******************************************************************************/
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| 13 | #define INCL_DOSERRORS
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| 14 | #define INCL_NOPMAPI
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| 15 |
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| 16 | /*@Header***********************************************************************
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| 17 | * Header Files *
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| 18 | *******************************************************************************/
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| 19 | #include <os2.h>
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| 20 |
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| 21 | #include <string.h>
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| 22 | #include <stdarg.h>
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| 23 | #include <builtin.h>
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| 24 |
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[4164] | 25 | #include "devSegDf.h" /* Win32k segment definitions. */
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[847] | 26 | #include "dev32.h"
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| 27 | #include "options.h"
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| 28 | #include "log.h"
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| 29 | #include "sprintf.h"
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| 30 | #include "yield.h"
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| 31 |
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| 32 |
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| 33 | /*******************************************************************************
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| 34 | * Global Variables *
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| 35 | *******************************************************************************/
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| 36 | static char achBuffer[512]; /* buffer for kprintf */
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| 37 |
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| 38 |
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| 39 | /*******************************************************************************
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| 40 | * Internal Functions *
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| 41 | *******************************************************************************/
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| 42 | static void write(char *psz);
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| 43 |
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| 44 |
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| 45 | /**
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| 46 | * Writes a string to logBuffer and to comport.
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| 47 | * @param psz Pointer to zero-string to be put to com-port.
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| 48 | * @param Port Port number of the com-port.
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| 49 | * @remark A lonely '\n' will result in a '\r\n' sequence.
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| 50 | */
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| 51 | static void write(char *psz)
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| 52 | {
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| 53 | /* if logging (to com port) enabled - log to COM-port */
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| 54 | if (options.fLogging)
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| 55 | {
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| 56 | ULONG ulPort = options.usCom;
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| 57 | int cch = 0;
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| 58 |
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| 59 | while (*psz != '\0')
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| 60 | {
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| 61 | while (!(_inp(ulPort + 5) & 0x20)); /* waits for port To Be ready */
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| 62 | _outp(ulPort, *psz); /* put char and inc pointer */
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| 63 |
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| 64 | /* new line fix */
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| 65 | if (psz[1] == '\n' && psz[0] != '\r')
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| 66 | {
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| 67 | while (!(_inp(ulPort + 5) & 0x20)); /* waits for port To Be ready */
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| 68 | _outp(ulPort, '\r'); /* put char and inc pointer */
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| 69 | cch++;
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| 70 | }
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| 71 | psz++;
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| 72 | if ((++cch % 3) == 0) /* 9600 bit/s -> 1066 bytes (9bit) -> 3 chars takes 3.2 ms to send */
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| 73 | Yield();
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| 74 | }
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| 75 | }
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| 76 | }
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| 77 |
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| 78 |
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| 79 | /**
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| 80 | * printf to log.
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| 81 | * @param pFormat Formatstring
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| 82 | * @param ... Other stuff used in pFormat.
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| 83 | * @remark This functions may yield the CPU!
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| 84 | */
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| 85 | void _kprintf(const char *pszFormat, ...)
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| 86 | {
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| 87 | va_list arg;
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| 88 |
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| 89 | /* check pFormat */
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| 90 | if (pszFormat == NULL)
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| 91 | {
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| 92 | write("\nWarning: Null pointer detected in kprint\n");
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| 93 | return;
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| 94 | }
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| 95 |
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| 96 | /* build string */
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| 97 | va_start(arg, pszFormat);
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| 98 | vsprintf(achBuffer, pszFormat, arg);
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| 99 | va_end(arg);
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| 100 |
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| 101 | /* write string */
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| 102 | write(achBuffer);
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| 103 | }
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