+++ /dev/null
-#pragma once
-
-/*
- * usr/include/linux/lp.h c.1991-1992 James Wiegand
- * many modifications copyright (C) 1992 Michael K. Johnson
- * Interrupt support added 1993 Nigel Gamble
- */
-
-/*
- * 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_OFFL 0x0008
-#define LP_NOPA 0x0010
-#define LP_ERR 0x0020
-#define LP_ABORT 0x0040
-#define LP_CAREFUL 0x0080
-#define LP_ABORTOPEN 0x0100
-
-/* 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. Since there are wildly
- * different computers running linux, I can't come up with a perfect
- * value, but since it worked well on most printers before without,
- * I'll initialize it to 0.
- */
-
-#define LP_INIT_WAIT 0
-
-/* 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 */
-#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 */
-
-/* timeout for printing 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)
-
-#if 0
-#define LP_B(minor) lp_table[(minor)].base /* IO address */
-#define LP_F(minor) lp_table[(minor)].flags /* flags for busy, etc. */
-#define LP_S(minor) inb_p(LP_B((minor)) + 1) /* status port */
-#define LP_C(minor) (lp_table[(minor)].base + 2) /* control port */
-#define LP_CHAR(minor) lp_table[(minor)].chars /* busy timeout */
-#define LP_TIME(minor) lp_table[(minor)].time /* wait time */
-#define LP_WAIT(minor) lp_table[(minor)].wait /* strobe wait */
-#define LP_IRQ(minor) lp_table[(minor)].irq /* interrupt # */
- /* 0 means polled */
-#endif
-
-#define LP_BUFFER_SIZE 256
-
-
-/*
- * The following constants describe the various signals of the printer port
- * hardware. Note that the hardware inverts some signals and that some
- * signals are active low. An example is LP_STROBE, which must be programmed
- * with 1 for being active and 0 for being inactive, because the strobe signal
- * gets inverted, but it is also active low.
- */
-
-/*
- * 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 */
-
-/*
- * defines for 8255 control port
- * base + 2
- * accessed with LP_C(minor)
- */
-#define LP_PINTEN 0x10
-#define LP_PSELECP 0x08 /* inverted output, active low */
-#define LP_PINITP 0x04 /* unchanged output, active low */
-#define LP_PAUTOLF 0x02 /* inverted output, active low */
-#define LP_PSTROBE 0x01 /* inverted output, active low */
-
-/*
- * the value written to ports to test existence. PC-style ports will
- * return the value written. AT-style ports will return 0. so why not
- * make them the same ?
- */
-#define LP_DUMMY 0x00
-
-/*
- * This is the port delay time. Your mileage may vary.
- * It is used only in the lp_init() routine.
- */
-#define LP_DELAY 150000
projects / reactos.git / blobdiff