diff options
Diffstat (limited to 'comdrtst.c')
| -rw-r--r-- | comdrtst.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/comdrtst.c b/comdrtst.c new file mode 100644 index 0000000..e5fd8c6 --- /dev/null +++ b/comdrtst.c @@ -0,0 +1,125 @@ +/***********************************************************************
+*
+* Name: comdrtst
+*
+* Purpose: Test program for comdrive read and write
+*
+* Algorithm: Tests both comdrive for both input (com_read)
+* and output (com_write)
+*
+***************************************************************************/
+
+#include <stdio.h>
+#include <dos.h>
+
+extern int com_read(char far *buff, int far *len);
+extern int com_write(char far *buff, int far *len);
+
+
+int main()
+{
+ int e_flag;
+ int tmp;
+ int rc;
+ char buffer[100];
+ char prompt[20];
+
+ int length;
+
+ rc = com_open(&e_flag,1200);
+
+ /* if bad return code, display value and exit */
+ if (rc != 0)
+ {
+ printf("\nrc(com_open) = %d",rc);
+ exit();
+ }
+
+ strcpy(buffer,"");
+ while (strcmp(buffer,"quit") != 0)
+ {
+ /* command prompt on com port */
+ length = 16;
+ e_flag = 0;
+ rc = com_write("\015\012Enter string: ",&length);
+
+ /* if bad return code, display value and exit */
+ if (rc != 0)
+ {
+ printf("\nrc(com_write) = %x",rc);
+ exit();
+ }
+
+ /* loop until write complete */
+ while (e_flag == 0)
+ printf("wait for write\n");
+
+ /* read string */
+ length = 30;
+ e_flag = 0;
+ rc = com_read(buffer,&length);
+
+ /* if bad return code, display value and exit */
+
+ if (rc != 0)
+ {
+ printf("\nrc(com_read) = %x",rc);
+ exit();
+ }
+
+ /* loop until read is done */
+ while (e_flag == 0)
+ printf("wait - reading\n");
+
+
+
+ /* display string entered */
+ e_flag = 0;
+ tmp = 22;
+ rc = com_write("\015\012string entered was: ",&tmp);
+
+ /* if bad return code, display value and exit */
+ if (rc != 0)
+ {
+ printf("\nrc(com_write) = %x",rc);
+ exit();
+ }
+
+ /* loop until write is done */
+ while (e_flag == 0)
+ printf("wait for string to be written\n");
+
+
+ e_flag = 0;
+ rc = com_write(buffer,&length);
+
+ /* if bad return code, display value and exit */
+ if (rc != 0)
+ {
+ printf("\nrc(com_write) = %x",rc);
+ }
+ /* loop until write is done */
+ while (e_flag == 0);
+}
+
+ length = 29;
+ e_flag = 0;
+ rc = com_write ("\015\012Com Driver Test Completed\015\012",&length);
+
+ /* if bad return code, display value and exit */
+ if (rc != 0)
+ {
+ printf("\nrc(com_write) = %x",rc);
+ }
+
+ /* loop until last write is done */
+ while (e_flag == 0);
+
+ com_close();
+ return 0;
+ }
+
+int IO_complete(int device, int *stkptr)
+{
+ return 0;
+}
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