Save some more bytes (strip down nio.c API).

1 files changed, 67 insertions, 65 deletions

diff --git a/src/nio.c b/src/nio.c
index 61ac8ae..9deae3c 100644
--- a/src/nio.c
+++ b/src/nio.c
@@ -2,21 +2,28 @@
  * N: I/O
  */
 
-#include "nio.h"
-#include "sio.h"
+/* "stripped down" version that harcodes some parameters! Don't
+   use this as example code for writing your own fujinet app! */
+
 #include <atari.h>
 #include <stddef.h>
+#include "nio.h"
+#include "sio.h"
+#include "config.h"
 
 #define TIMEOUT 0x1f /* approx 30 seconds */
 
-#define UNIT 1 /* only support one FujiNet! */
+#define UNIT 1 /* only support one FujiNet connection! */
+
+/* 0 = no translation (used to use 3, CRLF) */
+#define TRANS 0
 
-static char get_status(char *devicespec) {
+static char get_status(void) {
 	if(OS.dcb.dstats != SUCCESS) {
 		// something went wrong
 		// do we need to return extended status?
 		if(OS.dcb.dstats == DERROR) {
-			nstatus(devicespec);
+			nstatus();
 			return OS.dvstat[DVSTAT_EXTENDED_ERROR]; // return extended error.
 		}
 	}
@@ -24,86 +31,81 @@ static char get_status(char *devicespec) {
 }
 
 static void set_defaults(void) {
-  OS.dcb.ddevic   = DFUJI;      // Fuji Device Identifier
-  OS.dcb.dunit    = UNIT;       // Unit number integer 1 through 4
-  OS.dcb.dtimlo   = TIMEOUT;    // approximately 30 second timeout
+	OS.dcb.ddevic   = DFUJI;      // Fuji Device Identifier
+	OS.dcb.dunit    = UNIT;       // Unit number integer 1 through 4
+	OS.dcb.dtimlo   = TIMEOUT;    // approximately 30 second timeout
 }
 
-unsigned char nopen(char* devicespec, unsigned char trans)
-{
+char nopen(void) {
 	set_defaults();
-  OS.dcb.dcomnd   = 'O';        // Open
-  OS.dcb.dstats   = DWRITE;     // sending to to SIO device
-  OS.dcb.dbuf     = devicespec; // eg: N:TCP//
-  OS.dcb.dbyt     = 256;        // max size of our device spec
-  OS.dcb.daux1    = OUPDATE;    // Read and write
-  OS.dcb.daux2    = trans;      // CR/LF translation
-  siov();
-
-  return get_status(devicespec);
+	OS.dcb.dcomnd   = 'O';        // Open
+	OS.dcb.dstats   = DWRITE;     // sending to to SIO device
+	OS.dcb.dbuf     = conf->url;  // eg: N:TCP//
+	OS.dcb.dbyt     = 256;        // max size of our device spec
+	OS.dcb.daux1    = OUPDATE;    // Read and write
+	OS.dcb.daux2    = TRANS;      // CR/LF translation
+	siov();
+
+	return get_status();
 }
 
-unsigned char nclose(char* devicespec)
-{
+char nclose(void) {
 	set_defaults();
-  OS.dcb.dcomnd   = 'C';      // Close
-  OS.dcb.dstats   = 0x00;
-  OS.dcb.dbuf     = NULL;
-  OS.dcb.dbyt     = 0;
-  OS.dcb.daux     = 0;
-  siov();
-
-  return get_status(devicespec);
+	OS.dcb.dcomnd   = 'C';      // Close
+	OS.dcb.dstats   = 0x00;
+	OS.dcb.dbuf     = NULL;
+	OS.dcb.dbyt     = 0;
+	OS.dcb.daux     = 0;
+	siov();
+
+	return get_status();
 }
 
-unsigned char nstatus(char* devicespec)
-{
+char nstatus(void) {
 	set_defaults();
-  OS.dcb.dcomnd   = 'S';    // status
-  OS.dcb.dstats   = DREAD;
-  OS.dcb.dbuf     = OS.dvstat;
-  OS.dcb.dbyt     = sizeof(OS.dvstat);
-  OS.dcb.daux     = 0;
-  siov();
-
-  return OS.dvstat[DVSTAT_EXTENDED_ERROR]; // return extended status
+	OS.dcb.dcomnd   = 'S';    // status
+	OS.dcb.dstats   = DREAD;
+	OS.dcb.dbuf     = OS.dvstat;
+	OS.dcb.dbyt     = sizeof(OS.dvstat);
+	OS.dcb.daux     = 0;
+	siov();
+
+	return OS.dvstat[DVSTAT_EXTENDED_ERROR]; // return extended status
 }
 
-unsigned char nread(char* devicespec, unsigned char* buf, unsigned short len)
-{
+char nread(char *buf, unsigned short len) {
 	set_defaults();
-  OS.dcb.dcomnd   = 'R';    // read
-  OS.dcb.dstats   = DREAD;
-  OS.dcb.dbuf     = buf;
-  OS.dcb.dbyt     = OS.dcb.daux = len; // Set the buffer size AND daux with length
-  siov();
+	OS.dcb.dcomnd   = 'R';    // read
+	OS.dcb.dstats   = DREAD;
+	OS.dcb.dbuf     = buf;
+	OS.dcb.dbyt     = OS.dcb.daux = len; // Set the buffer size AND daux with length
+	siov();
 
-  return get_status(devicespec);
+	return get_status();
 }
 
-unsigned char nwrite(char* devicespec, unsigned char* buf, unsigned short len)
-{
+char nwrite(char *buf, unsigned short len) {
 	set_defaults();
-  OS.dcb.dcomnd   = 'W';    // write
-  OS.dcb.dstats   = DWRITE;
-  OS.dcb.dbuf     = buf;
-  OS.dcb.dbyt     = OS.dcb.daux = len;
-  siov();
+	OS.dcb.dcomnd   = 'W';    // write
+	OS.dcb.dstats   = DWRITE;
+	OS.dcb.dbuf     = buf;
+	OS.dcb.dbyt     = OS.dcb.daux = len;
+	siov();
 
-  return get_status(devicespec);
+	return get_status();
 }
 
 /* https://fujinet.online/wiki/?p=SIO-Command-%24FF-Reset-FujiNet */
-unsigned char nreset(void) {
+char nreset(void) {
 	set_defaults();
-  OS.dcb.ddevic   = 0x70;
-  OS.dcb.dcomnd   = 0xff; /* reset */
-  OS.dcb.dstats   = DWRITE;
-  OS.dcb.dbuf     = 0;
-  OS.dcb.dbyt     = 0;
-  OS.dcb.daux     = 0;
-  siov();
-
-  return OS.dvstat[DVSTAT_EXTENDED_ERROR]; // return extended status
+	OS.dcb.ddevic   = 0x70;
+	OS.dcb.dcomnd   = 0xff; /* reset */
+	OS.dcb.dstats   = DWRITE;
+	OS.dcb.dbuf     = 0;
+	OS.dcb.dbyt     = 0;
+	OS.dcb.daux     = 0;
+	siov();
+
+	return OS.dvstat[DVSTAT_EXTENDED_ERROR]; // return extended status
 }