Diff: printbuf.c

Revision:

11:4348bba086a4

Parent:

10:716484b1ddb5

Child:

12:54e7d8ff3a74

--- a/printbuf.c	Tue Apr 05 18:30:41 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,65 +0,0 @@
-/***********************************************************************/
-/*                                                                     */
-/*  printbuf.c:  Low Level print ring buffer  Routines                               */
-/*                                                                     */
-/***********************************************************************/
-#include <stdio.h>
-#include <stdarg.h>
-
-#define CR     0x0D
-#define TEMT 0x40	/* serial COMTX empty */
-extern int write (int file, char * ptr, int len);
-int putchar_buf(int);
-int putcharNB(int);
-
-
-/* Background non-blocking print using ring buffer */
-#define PRNBUFSZ 0x100
-char printbuffer[PRNBUFSZ];
-int prnbuf_count = 0;   /* number of characters in buffer */
-int prnbuf_pos = 0;   /* location to store characters */
-
-
-int printfNB(const char *format, ...)
-{  char buffer[128]; int i;
-	char c;
-	int val;
-  va_list args;     
-  va_start( args, format );
-  val = vsprintf(buffer, format, args );   // print to string using variable arguments
-	for(i = 0; i < 128 && buffer[i]!= '\0'; i++)    // copy string to print buffer
-	{ putcharNB((int)buffer[i]); }
-	return(val);
-}
-
-
-// overload putchar to use non-blocking print to ring buffer instead
-int putcharNB(int c)  {
-  	if (c == '\n') putchar_buf(CR);
-	putchar_buf(c);
-	return(c);	} 
-
-	
-/* routine to print using print ring buffer */
-/* does not block - allows over runs */
-int putchar_buf(int c)
-{
-  if(prnbuf_count >= PRNBUFSZ) return(0);   /* no room - drop character */
-  printbuffer[prnbuf_pos] = c;
-  prnbuf_pos++;
-  prnbuf_count++;   /* need to make uninterruptable? */
-  if(prnbuf_pos > (PRNBUFSZ-1))  prnbuf_pos = 0;   /* wrap index to beginning of
- buffer */
-  return(c);
-}
-
-
-
-
-int write (int file, char * ptr, int len) {
-  int i;
-
-  for (i = 0; i < len; i++) putcharNB(*ptr++);
-  return len;
-}
-