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

     /* $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 */

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