diff options
Diffstat (limited to 'drivers/staging/meilhaus/me8200_device.h')
| -rw-r--r-- | drivers/staging/meilhaus/me8200_device.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/drivers/staging/meilhaus/me8200_device.h b/drivers/staging/meilhaus/me8200_device.h new file mode 100644 index 000000000000..cbd2a01ddb41 --- /dev/null +++ b/drivers/staging/meilhaus/me8200_device.h @@ -0,0 +1,97 @@ +/** + * @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 |