sys/dev/ppbus/lptvar.h

   1 /* $NetBSD: lptvar.h,v 1.9 2007/03/08 14:45:07 he 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 */