Initial import

1 files changed, 100 insertions, 0 deletions

diff --git a/include/uapi/linux/lp.h b/include/uapi/linux/lp.h
new file mode 100644
index 000000000..a3406a51f
--- /dev/null
+++ b/include/uapi/linux/lp.h
@@ -0,0 +1,100 @@
+/*
+ * usr/include/linux/lp.h c.1991-1992 James Wiegand
+ * many modifications copyright (C) 1992 Michael K. Johnson
+ * Interrupt support added 1993 Nigel Gamble
+ * Removed 8255 status defines from inside __KERNEL__ Marcelo Tosatti 
+ */
+#ifndef _UAPI_LINUX_LP_H
+#define _UAPI_LINUX_LP_H
+
+
+/*
+ * Per POSIX guidelines, this module reserves the LP and lp prefixes
+ * These are the lp_table[minor].flags flags...
+ */
+#define LP_EXIST 0x0001
+#define LP_SELEC 0x0002
+#define LP_BUSY	 0x0004
+#define LP_BUSY_BIT_POS 2
+#define LP_OFFL	 0x0008
+#define LP_NOPA  0x0010
+#define LP_ERR   0x0020
+#define LP_ABORT 0x0040
+#define LP_CAREFUL 0x0080 /* obsoleted -arca */
+#define LP_ABORTOPEN 0x0100
+
+#define LP_TRUST_IRQ_  0x0200 /* obsolete */
+#define LP_NO_REVERSE  0x0400 /* No reverse mode available. */
+#define LP_DATA_AVAIL  0x0800 /* Data is available. */
+
+/* 
+ * bit defines for 8255 status port
+ * base + 1
+ * accessed with LP_S(minor), which gets the byte...
+ */
+#define LP_PBUSY	0x80  /* inverted input, active high */
+#define LP_PACK		0x40  /* unchanged input, active low */
+#define LP_POUTPA	0x20  /* unchanged input, active high */
+#define LP_PSELECD	0x10  /* unchanged input, active high */
+#define LP_PERRORP	0x08  /* unchanged input, active low */
+
+/* timeout for each character.  This is relative to bus cycles -- it
+ * is the count in a busy loop.  THIS IS THE VALUE TO CHANGE if you
+ * have extremely slow printing, or if the machine seems to slow down
+ * a lot when you print.  If you have slow printing, increase this
+ * number and recompile, and if your system gets bogged down, decrease
+ * this number.  This can be changed with the tunelp(8) command as well.
+ */
+
+#define LP_INIT_CHAR 1000
+
+/* The parallel port specs apparently say that there needs to be
+ * a .5usec wait before and after the strobe.
+ */
+
+#define LP_INIT_WAIT 1
+
+/* This is the amount of time that the driver waits for the printer to
+ * catch up when the printer's buffer appears to be filled.  If you
+ * want to tune this and have a fast printer (i.e. HPIIIP), decrease
+ * this number, and if you have a slow printer, increase this number.
+ * This is in hundredths of a second, the default 2 being .05 second.
+ * Or use the tunelp(8) command, which is especially nice if you want
+ * change back and forth between character and graphics printing, which
+ * are wildly different...
+ */
+
+#define LP_INIT_TIME 2
+
+/* IOCTL numbers */
+#define LPCHAR   0x0601  /* corresponds to LP_INIT_CHAR */
+#define LPTIME   0x0602  /* corresponds to LP_INIT_TIME */
+#define LPABORT  0x0604  /* call with TRUE arg to abort on error,
+			    FALSE to retry.  Default is retry.  */
+#define LPSETIRQ 0x0605  /* call with new IRQ number,
+			    or 0 for polling (no IRQ) */
+#define LPGETIRQ 0x0606  /* get the current IRQ number */
+#define LPWAIT   0x0608  /* corresponds to LP_INIT_WAIT */
+/* NOTE: LPCAREFUL is obsoleted and it' s always the default right now -arca */
+#define LPCAREFUL   0x0609  /* call with TRUE arg to require out-of-paper, off-
+			    line, and error indicators good on all writes,
+			    FALSE to ignore them.  Default is ignore. */
+#define LPABORTOPEN 0x060a  /* call with TRUE arg to abort open() on error,
+			    FALSE to ignore error.  Default is ignore.  */
+#define LPGETSTATUS 0x060b  /* return LP_S(minor) */
+#define LPRESET     0x060c  /* reset printer */
+#ifdef LP_STATS
+#define LPGETSTATS  0x060d  /* get statistics (struct lp_stats) */
+#endif
+#define LPGETFLAGS  0x060e  /* get status flags */
+#define LPSETTIMEOUT 0x060f /* set parport timeout */
+
+/* timeout for printk'ing a timeout, in jiffies (100ths of a second).
+   This is also used for re-checking error conditions if LP_ABORT is
+   not set.  This is the default behavior. */
+
+#define LP_TIMEOUT_INTERRUPT	(60 * HZ)
+#define LP_TIMEOUT_POLLED	(10 * HZ)
+
+
+#endif /* _UAPI_LINUX_LP_H */