From 034a1e66b8c8ed9f0282b414179874a38d9196d1 Mon Sep 17 00:00:00 2001
From: Stefan Ziegler <stefan.ziegler_zst@gmx.de>
Date: Wed, 7 Nov 2018 23:18:44 +0100
Subject: Anpassung Demo-Programme und Vorträge
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---
 content/demo-programme/raider.c | 109 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 content/demo-programme/raider.c

(limited to 'content/demo-programme/raider.c')

diff --git a/content/demo-programme/raider.c b/content/demo-programme/raider.c
new file mode 100644
index 0000000..6669c2b
--- /dev/null
+++ b/content/demo-programme/raider.c
@@ -0,0 +1,109 @@
+#include <ieee1284.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#define SHOW(st,bits)    printf(#bits" %s\n", ( st & bits) ?"on":"off")
+
+void dump_cap(int cap)
+{
+
+  SHOW(cap,CAP1284_RAW);
+  SHOW(cap,CAP1284_NIBBLE);
+  SHOW(cap,CAP1284_BYTE);
+  SHOW(cap,CAP1284_COMPAT);
+  SHOW(cap,CAP1284_BECP);
+  SHOW(cap,CAP1284_ECP);
+  SHOW(cap,CAP1284_ECPRLE);
+  SHOW(cap,CAP1284_ECPSWE);
+  SHOW(cap,CAP1284_EPP);
+  SHOW(cap,CAP1284_EPPSL);
+  SHOW(cap,CAP1284_EPPSWE);
+  SHOW(cap,CAP1284_IRQ);
+  SHOW(cap,CAP1284_DMA) ;
+
+
+}
+
+
+
+void pperror(int ret)
+{
+  switch(ret)
+    {
+    case E1284_NOMEM:
+      puts("There is not enough memory");
+      break;
+
+    case E1284_INVALIDPORT:
+      puts("The port is invalid");
+      break;
+
+    case E1284_SYS:
+      perror("E1284_SYS");
+      break;
+
+    default:
+      printf("unknown error %d",ret);
+    }
+
+}
+
+int main()
+{
+	int ret;
+	int fd;
+	int flags,cap,i;
+	unsigned char dat;
+
+	struct parport_list *plist=calloc(1,sizeof(*plist));
+	struct parport *pport;
+
+
+	ret = ieee1284_find_ports( plist, 0);
+    
+	if ( ( ret != E1284_OK ) || (plist->portc < 1)  ) /* cannot find parports */
+		return -1;
+    	
+	pport = plist->portv[0];
+
+
+	//flags=F1284_EXCL; //causes CLAIM to fail is mod lp is loaded
+	flags=0;
+	printf("going to open %s\n",pport->filename);
+	ret=ieee1284_open(pport,flags,&cap);
+	if (ret != E1284_OK )
+		goto no_open;
+
+	//
+	dump_cap(cap);
+
+	ret = ieee1284_claim ( pport );
+	if ( ret != E1284_OK )
+	  {
+	    printf("could not claim port\n");
+	    pperror( ret );
+		goto no_claim;
+	  }
+
+	/* set data direction */
+	ieee1284_data_dir( pport,0);
+
+
+	for(i=0;i<8;i++)
+	  {
+	    dat=1<<i;
+	    ieee1284_write_data(pport,dat);
+	    printf("write and wait %x\n",dat);
+	    usleep(100000);
+	  }
+
+	ieee1284_write_data(pport,0);
+	
+	ieee1284_release(pport);
+no_claim:	
+	ieee1284_close(pport);
+no_open:
+	ieee1284_free_ports(plist);
+
+	return 0;
+}
-- 
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