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/**
* @file me1600_device.h
*
* @brief ME-1600 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 _ME1600_H
#define _ME1600_H
#include <linux/pci.h>
#include <linux/spinlock.h>
#include "medevice.h"
#include "me1600_ao.h"
#include "me1600_ao_reg.h"
#ifdef __KERNEL__
/**
* @brief Structure to store device capabilities.
*/
typedef struct me1600_version {
uint16_t device_id; /**< The PCI device id of the device. */
unsigned int ao_chips; /**< The number of analog outputs on the device. */
int curr; /**< Flag to identify amounts of current output. */
} me1600_version_t;
/**
* @brief Defines for each ME-1600 device version its capabilities.
*/
static me1600_version_t me1600_versions[] = {
{PCI_DEVICE_ID_MEILHAUS_ME1600_4U, 4, 0},
{PCI_DEVICE_ID_MEILHAUS_ME1600_8U, 8, 0},
{PCI_DEVICE_ID_MEILHAUS_ME1600_12U, 12, 0},
{PCI_DEVICE_ID_MEILHAUS_ME1600_16U, 16, 0},
{PCI_DEVICE_ID_MEILHAUS_ME1600_16U_8I, 16, 8},
{0}
};
/**< Returns the number of entries in #me1600_versions. */
#define ME1600_DEVICE_VERSIONS (sizeof(me1600_versions) / sizeof(me1600_version_t) - 1)
/**
* @brief Returns the index of the device entry in #me1600_versions.
*
* @param device_id The PCI device id of the device to query.
* @return The index of the device in #me1600_versions.
*/
static inline unsigned int me1600_versions_get_device_index(uint16_t device_id)
{
unsigned int i;
for (i = 0; i < ME1600_DEVICE_VERSIONS; i++)
if (me1600_versions[i].device_id == device_id)
break;
return i;
}
/**
* @brief The ME-1600 device class structure.
*/
typedef struct me1600_device {
me_device_t base; /**< The Meilhaus device base class. */
spinlock_t config_regs_lock; /**< Protects the configuration registers. */
me1600_ao_shadow_t ao_regs_shadows; /**< Addresses and shadows of output's registers. */
spinlock_t ao_shadows_lock; /**< Protects the shadow's struct. */
} me1600_device_t;
/**
* @brief The ME-1600 device class constructor.
*
* @param pci_device The pci device structure given by the PCI subsystem.
*
* @return On succes a new ME-1600 device instance. \n
* NULL on error.
*/
me_device_t *me1600_pci_constructor(struct pci_dev *pci_device)
__attribute__ ((weak));
#endif
#endif
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