The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/ppbus/lptvar.h

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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 */

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