forked from Qortal/Brooklyn
2a709f28fa
* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
101 lines
2.7 KiB
C
101 lines
2.7 KiB
C
/*
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* usr/include/linux/lp.h c.1991-1992 James Wiegand
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* many modifications copyright (C) 1992 Michael K. Johnson
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* Interrupt support added 1993 Nigel Gamble
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* Removed 8255 status defines from inside __KERNEL__ Marcelo Tosatti
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*/
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#ifndef _LINUX_LP_H
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#define _LINUX_LP_H
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#include <linux/wait.h>
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#include <linux/mutex.h>
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#include <uapi/linux/lp.h>
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/* Magic numbers for defining port-device mappings */
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#define LP_PARPORT_UNSPEC -4
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#define LP_PARPORT_AUTO -3
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#define LP_PARPORT_OFF -2
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#define LP_PARPORT_NONE -1
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#define LP_F(minor) lp_table[(minor)].flags /* flags for busy, etc. */
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#define LP_CHAR(minor) lp_table[(minor)].chars /* busy timeout */
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#define LP_TIME(minor) lp_table[(minor)].time /* wait time */
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#define LP_WAIT(minor) lp_table[(minor)].wait /* strobe wait */
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#define LP_IRQ(minor) lp_table[(minor)].dev->port->irq /* interrupt # */
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/* PARPORT_IRQ_NONE means polled */
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#ifdef LP_STATS
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#define LP_STAT(minor) lp_table[(minor)].stats /* statistics area */
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#endif
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#define LP_BUFFER_SIZE PAGE_SIZE
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#define LP_BASE(x) lp_table[(x)].dev->port->base
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#ifdef LP_STATS
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struct lp_stats {
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unsigned long chars;
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unsigned long sleeps;
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unsigned int maxrun;
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unsigned int maxwait;
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unsigned int meanwait;
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unsigned int mdev;
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};
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#endif
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struct lp_struct {
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struct pardevice *dev;
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unsigned long flags;
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unsigned int chars;
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unsigned int time;
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unsigned int wait;
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char *lp_buffer;
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#ifdef LP_STATS
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unsigned int lastcall;
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unsigned int runchars;
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struct lp_stats stats;
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#endif
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wait_queue_head_t waitq;
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unsigned int last_error;
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struct mutex port_mutex;
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wait_queue_head_t dataq;
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long timeout;
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unsigned int best_mode;
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unsigned int current_mode;
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unsigned long bits;
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};
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/*
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* The following constants describe the various signals of the printer port
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* hardware. Note that the hardware inverts some signals and that some
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* signals are active low. An example is LP_STROBE, which must be programmed
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* with 1 for being active and 0 for being inactive, because the strobe signal
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* gets inverted, but it is also active low.
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*/
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/*
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* defines for 8255 control port
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* base + 2
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* accessed with LP_C(minor)
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*/
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#define LP_PINTEN 0x10 /* high to read data in or-ed with data out */
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#define LP_PSELECP 0x08 /* inverted output, active low */
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#define LP_PINITP 0x04 /* unchanged output, active low */
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#define LP_PAUTOLF 0x02 /* inverted output, active low */
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#define LP_PSTROBE 0x01 /* short high output on raising edge */
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/*
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* the value written to ports to test existence. PC-style ports will
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* return the value written. AT-style ports will return 0. so why not
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* make them the same ?
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*/
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#define LP_DUMMY 0x00
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/*
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* This is the port delay time, in microseconds.
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* It is used only in the lp_init() and lp_reset() routine.
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*/
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#define LP_DELAY 50
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#endif
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