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