HD44780 and SED1330 now use lpt-port.h

server/drivers/lpt-port.h

@@ -0,0 +1,48 @@
+// This file contains defines to control the LPT port.
+// A lot of this was originally in hd44780-low.h
+
+#ifndef LPT_PORT_H
+#define LPT_PORT_H
+
+
+/* Output data
+ * Write to baseaddress+0
+ */
+// Straight-forward use, no defines needed for this...
+
+
+/* Control output lines
+ * Write to baseaddress+2
+ */
+#define nSTRB 	0x01	/* negative logic */
+#define STRB 	0x01
+#define nLF 	0x02
+#define LF 	0x02
+#define INIT 	0x04	/* the only positive logic output line */
+#define nSEL 	0x08
+#define SEL 	0x08
+#define ENIRQ	0x10	/* Enable IRQ via ACK line */
+#define ENBI	0x20	/* Enable bi-directional port */
+
+#define OUTMASK	0x0B	/* SEL, LF and STRB are hardware inverted */
+			/* Use this mask only for the control output lines */
+			/* XOR with this mask ( ^ OUTMASK ) */
+
+
+/* Control input lines
+ * Read from baseaddress+1
+ */
+#define nFAULT	0x08
+#define FAULT	0x08
+#define SELIN	0x10
+#define PAPEREND  0x20
+#define nACK	0x40
+#define ACK	0x40
+#define BUSY	0x80
+#define IRQ	0x02
+
+#define INMASK	0x84	/* BUSY input and the IRQ indicator are inverted */
+			/* Use this mask only for the control input lines */
+			/* XOR with this mask ( ^ OUTMASK ) */
+
+#endif