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      1 /* $NetBSD: lptvar.h,v 1.10 2008/04/28 20:23:56 martin Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2004 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Gary Thorpe.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef __DEV_PPBUS_LPTVAR_H
     33 #define __DEV_PPBUS_LPTVAR_H
     34 
     35 #include <machine/vmparam.h>
     36 #include <dev/ppbus/ppbus_device.h>
     37 
     38 /* #define LPINITRDY       4       wait up to 4 seconds for a ready
     39 #define BUFSTATSIZE     32
     40 #define LPTOUTINITIAL   10       initial timeout to wait for ready 1/10 s
     41 #define LPTOUTMAX       1        maximal timeout 1 s */
     42 #define LPPRI           (PZERO+8)
     43 #define BUFSIZE		PAGE_SIZE
     44 
     45 #define	LPTUNIT(s)	(minor(s) & 0xff)
     46 #define	LPTCTL(s)	(minor(s) & 0x100)
     47 
     48 /* Wait up to 16 seconds for a ready */
     49 #define	LPT_TIMEOUT		((hz)*16)
     50 #define LPT_STEP		((hz)/4)
     51 
     52 struct lpt_softc {
     53 	struct ppbus_device_softc ppbus_dev;
     54 
     55 	int sc_state;
     56 /* bits for state */
     57 #define OPEN            (unsigned)(1<<0)  /* device is open */
     58 #define ASLP            (unsigned)(1<<1)  /* awaiting draining of printer */
     59 #define EERROR          (unsigned)(1<<2)  /* error was received from printer */
     60 #define OBUSY           (unsigned)(1<<3)  /* printer is busy doing output */
     61 #define LPTOUT          (unsigned)(1<<4)  /* timeout while not selected */
     62 #define TOUT            (unsigned)(1<<5)  /* timeout while not selected */
     63 #define LPTINIT         (unsigned)(1<<6)  /* waiting to initialize for open */
     64 #define INTERRUPTED     (unsigned)(1<<7)  /* write call was interrupted */
     65 #define HAVEBUS         (unsigned)(1<<8)  /* the driver owns the bus */
     66 
     67 	int sc_flags;		/* flags from lptio.h */
     68 
     69 	void *sc_inbuf;
     70 	void *sc_outbuf;
     71 	bus_addr_t sc_in_baddr;
     72 	bus_addr_t sc_out_baddr;
     73 };
     74 
     75 #define MAX_SLEEP       (hz*5)  /* Timeout while waiting for device ready */
     76 #define MAX_SPIN        20      /* Max delay for device ready in usecs */
     77 
     78 #ifdef LPT_DEBUG
     79 static volatile int lptdebug = 1;
     80 #ifndef LPT_DPRINTF
     81 #define LPT_DPRINTF(arg) if(lptdebug) printf arg
     82 #else
     83 #define LPT_DPRINTF(arg) if(lptdebug) printf("WARNING: LPT_DPRINTF " \
     84 	"REDEFINED!!!")
     85 #endif /* LPT_DPRINTF */
     86 #else
     87 #define LPT_DPRINTF(arg)
     88 #endif /* LPT_DEBUG */
     89 
     90 #ifdef LPT_VERBOSE
     91 static volatile int lptverbose = 1;
     92 #ifndef LPT_VPRINTF
     93 #define LPT_VPRINTF(arg) if(lptverbose) printf arg
     94 #else
     95 #define LPT_VPRINTF(arg) if(lptverbose) printf("WARNING: LPT_VPRINTF " \
     96 	"REDEFINED!!!")
     97 #endif /* LPT_VPRINTF */
     98 #else
     99 #define LPT_VPRINTF(arg)
    100 #endif /* LPT_VERBOSE */
    101 
    102 #endif /* __DEV_PPBUS_LPTVAR_H */
    103