NetBSD/sys/dev/ppbus/lptvar.h

110 lines
4.2 KiB
C

/* $NetBSD: lptvar.h,v 1.6 2004/02/03 21:15:03 jdolecek Exp $ */
/*-
* Copyright (c) 2004 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Gary Thorpe.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __DEV_PPBUS_LPTVAR_H
#define __DEV_PPBUS_LPTVAR_H
#include <machine/vmparam.h>
#include <dev/ppbus/ppbus_device.h>
/* #define LPINITRDY 4 wait up to 4 seconds for a ready
#define BUFSTATSIZE 32
#define LPTOUTINITIAL 10 initial timeout to wait for ready 1/10 s
#define LPTOUTMAX 1 maximal timeout 1 s */
#define LPPRI (PZERO+8)
#define BUFSIZE PAGE_SIZE
#define LPTUNIT(s) (minor(s) & 0xff)
#define LPTCTL(s) (minor(s) & 0x100)
/* Wait up to 16 seconds for a ready */
#define LPT_TIMEOUT ((hz)*16)
#define LPT_STEP ((hz)/4)
struct lpt_softc {
struct ppbus_device_softc ppbus_dev;
int sc_state;
/* bits for state */
#define OPEN (unsigned)(1<<0) /* device is open */
#define ASLP (unsigned)(1<<1) /* awaiting draining of printer */
#define EERROR (unsigned)(1<<2) /* error was received from printer */
#define OBUSY (unsigned)(1<<3) /* printer is busy doing output */
#define LPTOUT (unsigned)(1<<4) /* timeout while not selected */
#define TOUT (unsigned)(1<<5) /* timeout while not selected */
#define LPTINIT (unsigned)(1<<6) /* waiting to initialize for open */
#define INTERRUPTED (unsigned)(1<<7) /* write call was interrupted */
#define HAVEBUS (unsigned)(1<<8) /* the driver owns the bus */
int sc_flags; /* flags from lptio.h */
char *sc_inbuf;
char *sc_outbuf;
bus_addr_t sc_in_baddr;
bus_addr_t sc_out_baddr;
};
#define MAX_SLEEP (hz*5) /* Timeout while waiting for device ready */
#define MAX_SPIN 20 /* Max delay for device ready in usecs */
#ifdef LPT_DEBUG
static volatile int lptdebug = 1;
#ifndef LPT_DPRINTF
#define LPT_DPRINTF(arg) if(lptdebug) printf arg
#else
#define LPT_DPRINTF(arg) if(lptdebug) printf("WARNING: LPT_DPRINTF " \
"REDEFINED!!!")
#endif /* LPT_DPRINTF */
#else
#define LPT_DPRINTF(arg)
#endif /* LPT_DEBUG */
#ifdef LPT_VERBOSE
static volatile int lptverbose = 1;
#ifndef LPT_VPRINTF
#define LPT_VPRINTF(arg) if(lptverbose) printf arg
#else
#define LPT_VPRINTF(arg) if(lptverbose) printf("WARNING: LPT_VPRINTF " \
"REDEFINED!!!")
#endif /* LPT_VPRINTF */
#else
#define LPT_VPRINTF(arg)
#endif /* LPT_VERBOSE */
#endif /* __DEV_PPBUS_LPTVAR_H */