2 files changed, 217 insertions, 0 deletions
diff --git a/content/demo-programme/ppraider.c b/content/demo-programme/ppraider.c
new file mode 100644
index 0000000..20288c7
--- /dev/null
+++ b/content/demo-programme/ppraider.c
@@ -0,0 +1,108 @@
+/*
+  alle datenpins der reihe nach setzen via parport
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include <linux/parport.h>
+#include <linux/ppdev.h>
+
+
+#define DEVICE   "/dev/parport0"
+
+static char *RCSID __attribute__ ((unused))  =
+    "$Id: ppraider.c,v 1.1 2006/03/19 15:33:54 walter Exp walter $";
+
+
+#define SHOW(st,bits)    printf(#bits" %s\n", ( st & bits) ?"on":"off")
+
+
+int xopenport(char *name, int fdmode)
+{
+	static int fd;
+	int mode;
+
+
+	mode = O_WRONLY | O_NOCTTY;
+	fd = open(name, mode);
+
+	if (fd == -1) {
+		perror("open");
+		exit(EXIT_FAILURE);
+	}
+
+
+
+	if (ioctl(fd, PPCLAIM)) {
+		perror("PPCLAIM");
+		close(fd);
+		exit(EXIT_FAILURE);
+	}
+	mode = IEEE1284_MODE_COMPAT;
+
+	if (ioctl(fd, PPNEGOT, &mode)) {
+		perror("PPNEGOT");
+		close(fd);
+		exit(EXIT_FAILURE);
+	}
+	return fd;
+}
+
+ /* release port close(fd), ignore errors */
+void xcloseport(int fd)
+{
+	ioctl(fd, PPRELEASE);
+	close(fd);
+}
+
+
+void xset_data(int fd, int data)
+{
+	int ret;
+	ret = ioctl(fd, PPWDATA, &data);
+	if (!ret)
+		return;
+	fprintf(stderr, "%s failed:%s\n", __func__, strerror(errno));
+	exit(EXIT_FAILURE);
+}
+
+
+ /* get status info */
+ /* clean up later */
+void xget_status(int fd, unsigned char *foo)
+{
+	int ret;
+	unsigned char status;
+	ret = ioctl(fd, PPRSTATUS, &status);
+	if (!ret) {
+		*foo = status;
+		return;
+
+	}
+	fprintf(stderr, "%s failed:%s\n", __func__, strerror(errno));
+	exit(EXIT_FAILURE);
+}
+
+
+int main()
+{
+  int i,fd;
+	fd = xopenport(DEVICE, 0);
+
+
+	for (i = 0; i < 8; i++) {
+		xset_data(fd, 1 << i);
+		usleep(500000);
+	}
+
+	xset_data(fd, 0);
+	xcloseport(fd);
+
+	return 0;
+}
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;
+}