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/**
* @file me8200_device.h
*
* @brief ME-8200 device class.
* @note Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de)
* @author Guenter Gebhardt
*/
/*
* Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de)
*
* This file 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 of the License, or
* (at your option) any later version.
*
* This program 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.
*/
#ifndef _ME8200_DEVICE_H
#define _ME8200_DEVICE_H
#include <linux/pci.h>
#include <linux/spinlock.h>
#include "medevice.h"
#ifdef __KERNEL__
/**
* @brief Structure holding ME-8200 device capabilities.
*/
typedef struct me8200_version {
uint16_t device_id;
unsigned int di_subdevices;
unsigned int do_subdevices;
unsigned int dio_subdevices;
} me8200_version_t;
/**
* @brief Device capabilities.
*/
static me8200_version_t me8200_versions[] = {
{PCI_DEVICE_ID_MEILHAUS_ME8200_A, 1, 1, 2},
{PCI_DEVICE_ID_MEILHAUS_ME8200_B, 2, 2, 2},
{0},
};
#define ME8200_DEVICE_VERSIONS (sizeof(me8200_versions) / sizeof(me8200_version_t) - 1) /**< Returns the number of entries in #me8200_versions. */
/**
* @brief Returns the index of the device entry in #me8200_versions.
*
* @param device_id The PCI device id of the device to query.
* @return The index of the device in #me8200_versions.
*/
static inline unsigned int me8200_versions_get_device_index(uint16_t device_id)
{
unsigned int i;
for (i = 0; i < ME8200_DEVICE_VERSIONS; i++)
if (me8200_versions[i].device_id == device_id)
break;
return i;
}
/**
* @brief The ME-8200 device class structure.
*/
typedef struct me8200_device {
me_device_t base; /**< The Meilhaus device base class. */
/* Child class attributes. */
spinlock_t irq_ctrl_lock; /**< Lock for the interrupt control register. */
spinlock_t irq_mode_lock; /**< Lock for the interrupt mode register. */
spinlock_t dio_ctrl_lock; /**< Lock for the digital i/o control register. */
} me8200_device_t;
/**
* @brief The ME-8200 device class constructor.
*
* @param pci_device The pci device structure given by the PCI subsystem.
*
* @return On succes a new ME-8200 device instance. \n
* NULL on error.
*/
me_device_t *me8200_pci_constructor(struct pci_dev *pci_device)
__attribute__ ((weak));
#endif
#endif
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