1130b656e5
This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long. Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise.
58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/*-
|
|
* Copyright (c) 1990 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* William Jolitz.
|
|
*
|
|
* form: @(#)lptreg.h 1.1 (Berkeley) 12/19/90
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* AT Parallel Port (for lineprinter)
|
|
* Interface port and bit definitions
|
|
* Written by William Jolitz 12/18/90
|
|
* Copyright (C) William Jolitz 1990
|
|
*/
|
|
|
|
/*
|
|
* modified for PC9801 by A.Kojima
|
|
* Kyoto University Microcomputer Club (KMC)
|
|
*/
|
|
|
|
#ifdef PC98
|
|
#define lpt_pstb_ctrl (-9) /* PSTB enable control */
|
|
#define LPC_EN_PSTB 0xc /* PSTB enable */
|
|
#define LPC_DIS_PSTB 0xd /* PSTB disable */
|
|
|
|
#define lpt_data 0 /* Data to/from printer (R/W) */
|
|
|
|
#define lpt_status 2 /* Status of printer (R) */
|
|
#define LPS_NBSY 0x4 /* printer no ack of data */
|
|
|
|
#define lpt_control 6 /* Control printer (W) */
|
|
#define LPC_MODE8255 0x82 /* 8255 mode */
|
|
#define LPC_IRQ8 0x6 /* IRQ8 active */
|
|
#define LPC_NIRQ8 0x7 /* IRQ8 inactive */
|
|
#define LPC_PSTB 0xe /* PSTB active */
|
|
#define LPC_NPSTB 0xf /* PSTB inactive */
|
|
|
|
#else /* IBM-PC */
|
|
#define lpt_data 0 /* Data to/from printer (R/W) */
|
|
|
|
#define lpt_status 1 /* Status of printer (R) */
|
|
#define LPS_NERR 0x08 /* printer no error */
|
|
#define LPS_SEL 0x10 /* printer selected */
|
|
#define LPS_OUT 0x20 /* printer out of paper */
|
|
#define LPS_NACK 0x40 /* printer no ack of data */
|
|
#define LPS_NBSY 0x80 /* printer no ack of data */
|
|
|
|
#define lpt_control 2 /* Control printer (R/W) */
|
|
#define LPC_STB 0x01 /* strobe data to printer */
|
|
#define LPC_AUTOL 0x02 /* automatic linefeed */
|
|
#define LPC_NINIT 0x04 /* initialize printer */
|
|
#define LPC_SEL 0x08 /* printer selected */
|
|
#endif
|
|
#define LPC_ENA 0x10 /* printer out of paper */
|