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/**
* @file metempl_device.h
*
* @brief template 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 _METEMPL_DEVICE_H
#define _METEMPL_DEVICE_H
#include <linux/pci.h>
#include <linux/spinlock.h>
#include "medevice.h"
#ifdef __KERNEL__
/**
* @brief Structure holding template device capabilities.
*/
typedef struct metempl_version {
uint16_t device_id;
unsigned int subdevices;
} metempl_version_t;
/**
* @brief Device capabilities.
*/
static metempl_version_t metempl_versions[] = {
{0xDEAD, 1},
{0},
};
#define METEMPL_DEVICE_VERSIONS (sizeof(metempl_versions) / sizeof(metempl_version_t) - 1) /**< Returns the number of entries in #metempl_versions. */
/**
* @brief Returns the index of the device entry in #metempl_versions.
*
* @param device_id The PCI device id of the device to query.
* @return The index of the device in #metempl_versions.
*/
static inline unsigned int metempl_versions_get_device_index(uint16_t device_id)
{
unsigned int i;
for (i = 0; i < METEMPL_DEVICE_VERSIONS; i++)
if (metempl_versions[i].device_id == device_id)
break;
return i;
}
/**
* @brief The template device class structure.
*/
typedef struct metempl_device {
me_device_t base; /**< The Meilhaus device base class. */
/* Child class attributes. */
spinlock_t ctrl_reg_lock;
} metempl_device_t;
/**
* @brief The template device class constructor.
*
* @param pci_device The pci device structure given by the PCI subsystem.
*
* @return On succes a new template device instance. \n
* NULL on error.
*/
me_device_t *metempl_pci_constructor(struct pci_dev *pci_device)
__attribute__ ((weak));
#endif
#endif
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