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Originally written by Guenter Gebhardt <g.gebhardt@meilhaus.de> and Krzysztof Gantzke <k.gantzke@meilhaus.de> This is the drv/lnx/mod directory of ME-IDS 1.2.9 tarball with some files from drv/lnx/include. Signed-off-by: David Kiliani <mail@davidkiliani.de> Cc: Guenter Gebhardt <g.gebhardt@meilhaus.de> Cc: Krzysztof Gantzke <k.gantzke@meilhaus.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
/**
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* @file me1000_dio.h
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*
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* @brief Meilhaus ME-1000 digital i/o implementation.
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* @note Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de)
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* @author Guenter Gebhardt
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*/
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/*
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* Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de)
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef _ME1000_DIO_H_
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#define _ME1000_DIO_H_
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#include "mesubdevice.h"
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#include "meslock.h"
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#ifdef __KERNEL__
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/**
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* @brief The ME-1000 DIO subdevice class.
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*/
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typedef struct me1000_dio_subdevice {
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/* Inheritance */
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me_subdevice_t base; /**< The subdevice base class. */
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/* Attributes */
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// uint32_t magic; /**< The magic number unique for this structure. */
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spinlock_t subdevice_lock; /**< Spin lock to protect the subdevice from concurrent access. */
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spinlock_t *ctrl_reg_lock; /**< Spin lock to protect #ctrl_reg and #ctrl_reg_mirror from concurrent access. */
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int dio_idx; /**< The index of the DIO port on the device. */
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unsigned long port_reg; /**< Register to read or write a value from or to the port respectively. */
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unsigned long ctrl_reg; /**< Register to configure the DIO modes. */
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#ifdef MEDEBUG_DEBUG_REG
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unsigned long reg_base;
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#endif
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} me1000_dio_subdevice_t;
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/**
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* @brief The constructor to generate a ME-1000 DIO instance.
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*
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* @param reg_base The register base address of the device as returned by the PCI BIOS.
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* @param dio_idx The index of the DIO on the device.
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* @param ctrl_reg_lock Pointer to spin lock protecting the control register and from concurrent access.
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*
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* @return Pointer to new instance on success.\n
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* NULL on error.
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*/
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me1000_dio_subdevice_t *me1000_dio_constructor(uint32_t reg_base,
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unsigned int dio_idx,
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spinlock_t * ctrl_reg_lock);
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#endif
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#endif
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