/* $Id$ * $URL$ * * generic driver helper for parallel port displays * * Copyright (C) 1999, 2000 Michael Reinelt * Copyright (C) 2004 The LCD4Linux Team * * This file is part of LCD4Linux. * * LCD4Linux is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * LCD4Linux is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * */ /* * * exported fuctions: * * int drv_generic_parport_open (void) * reads 'Port' entry from config and opens * the parallel port * returns 0 if ok, -1 on failure * * int drv_generic_parport_close (void) * closes parallel port * returns 0 if ok, -1 on failure * * unsigned char drv_generic_parport_wire_ctrl (char *name, char *deflt) * reads wiring for one control signal from config * returns DRV_GENERIC_PARPORT_CONTROL_* or 255 on error * * unsigned char drv_generic_parport_hardwire_ctrl (char *name) * returns hardwiring for one control signal * same as above, but does not read from config, * but checks the config and emits a warning that the config * entry will be ignored * returns DRV_GENERIC_PARPORT_CONTROL_* or 255 on error * * unsigned char drv_generic_parport_wire_status (char *name, char *deflt) * reads wiring for one status signal from config * returns DRV_GENERIC_PARPORT_STATUS_* or 255 on error * * unsigned char drv_generic_parport_wire_data (char *name, char *deflt) * reads wiring for one data signal from config * returns 1< to for nanoseconds * * void drv_generic_parport_data (unsigned char value) * put data bits on DB1..DB8 * * unsigned char drv_generic_parport_read (void) * reads a byte from the parallel port * * void drv_generic_parport_debug(void) * prints status of control lines * */ #ifndef _DRV_GENERIC_PARPORT_H_ #define _DRV_GENERIC_PARPORT_H_ int drv_generic_parport_open(const char *section, const char *driver); int drv_generic_parport_close(void); unsigned char drv_generic_parport_wire_ctrl(const char *name, const char *deflt); unsigned char drv_generic_parport_hardwire_ctrl(const char *name, const char *deflt); unsigned char drv_generic_parport_wire_status(const char *name, const char *deflt); unsigned char drv_generic_parport_wire_data(const char *name, const char *deflt); void drv_generic_parport_direction(const int direction); unsigned char drv_generic_parport_status(void); void drv_generic_parport_control(const unsigned char mask, const unsigned char value); void drv_generic_parport_toggle(const unsigned char bit, const int level, const unsigned long delay); void drv_generic_parport_data(const unsigned char data); unsigned char drv_generic_parport_read(void); void drv_generic_parport_debug(void); #endif 17:58:50 by reinelt]reinelt65-273/+607 2003-10-04[lcd4linux @ 2003-10-04 07:54:17 by reinelt]reinelt7-1217/+23170 2003-10-03[lcd4linux @ 2003-10-03 03:53:12 by reinelt]reinelt1-2/+12 2003-10-03[lcd4linux @ 2003-10-03 03:51:14 by reinelt]reinelt2-46/+92 2003-09-29[lcd4linux @ 2003-09-29 06:58:36 by reinelt]reinelt7-15/+381 2003-09-29[lcd4linux @ 2003-09-29 06:12:56 by reinelt]reinelt3-15/+22 2003-09-21[lcd4linux @ 2003-09-21 06:43:02 by reinelt]reinelt2-2/+71 2003-09-19[lcd4linux @ 2003-09-19 08:40:32 by reinelt]reinelt4-27/+54 2003-09-19[lcd4linux @ 2003-09-19 03:51:29 by reinelt]reinelt6-17/+160 2003-09-13[lcd4linux @ 2003-09-13 07:20:51 by reinelt]reinelt3-12/+32 2003-09-13[lcd4linux @ 2003-09-13 06:45:43 by reinelt]reinelt9-57/+188 2003-09-13[lcd4linux @ 2003-09-13 06:20:39 by reinelt]reinelt7-8673/+459 2003-09-11[lcd4linux @ 2003-09-11 15:05:24 by reinelt]reinelt3-89/+1519 2003-09-11[lcd4linux @ 2003-09-11 04:09:52 by reinelt]reinelt6-14/+46 2003-09-10[lcd4linux @ 2003-09-10 15:59:39 by reinelt]reinelt4-13/+391 2003-09-10[lcd4linux @ 2003-09-10 15:09:21 by reinelt]reinelt1-0/+28 2003-09-10[lcd4linux @ 2003-09-10 14:01:52 by reinelt]reinelt6-21/+110 2003-09-10[lcd4linux @ 2003-09-10 08:37:09 by reinelt]reinelt2-50/+73 2003-09-10[lcd4linux @ 2003-09-10 03:48:22 by reinelt]reinelt7-47/+130 2003-09-09[lcd4linux @ 2003-09-09 11:47:47 by reinelt]reinelt3-14/+37 2003-09-09[lcd4linux @ 2003-09-09 06:54:43 by reinelt]reinelt15-135/+177 2003-09-09[lcd4linux @ 2003-09-09 05:30:33 by reinelt]reinelt11-90/+243 2003-09-01[lcd4linux @ 2003-09-01 07:07:03 by reinelt]reinelt8-402/+13825 2003-09-01[lcd4linux @ 2003-09-01 04:09:34 by reinelt]reinelt9-28/+127 2003-08-24[lcd4linux @ 2003-08-24 05:28:31 by reinelt]reinelt1-119/+156 2003-08-24[lcd4linux @ 2003-08-24 05:17:58 by reinelt]reinelt25-131/+217 2003-08-24[lcd4linux @ 2003-08-24 04:31:56 by reinelt]reinelt6-11/+154 2003-08-22[lcd4linux @ 2003-08-22 03:45:08 by reinelt]reinelt3-8/+25 2003-08-20[lcd4linux @ 2003-08-20 05:26:43 by reinelt]reinelt1-9/+11 2003-08-19[lcd4linux @ 2003-08-19 05:23:55 by reinelt]reinelt2-62/+123 2003-08-19[lcd4linux @ 2003-08-19 04:28:41 by reinelt]reinelt4-19/+42 2003-08-17[lcd4linux @ 2003-08-17 16:37:39 by reinelt]reinelt5-23/+77 2003-08-17[lcd4linux @ 2003-08-17 12:11:58 by reinelt]reinelt6-27/+118 2003-08-17[lcd4linux @ 2003-08-17 08:25:30 by reinelt]reinelt6-46/+185 2003-08-17[lcd4linux @ 2003-08-17 06:57:04 by reinelt]reinelt5-544/+325