/** * @file me8200_di.h * * @brief ME-8200 digital input subdevice 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_DI_H_ #define _ME8200_DI_H_ #include "mesubdevice.h" #ifdef __KERNEL__ /** * @brief The template subdevice class. */ typedef struct me8200_di_subdevice { /* Inheritance */ me_subdevice_t base; /**< The subdevice base class. */ /* Attributes */ spinlock_t subdevice_lock; /**< Spin lock to protect the subdevice from concurrent access. */ spinlock_t *ctrl_reg_lock; spinlock_t *irq_ctrl_lock; spinlock_t *irq_mode_lock; unsigned int di_idx; unsigned int version; int irq; /**< The number of the interrupt request. */ volatile int rised; /**< Flag to indicate if an interrupt occured. */ uint status_flag; /**< Default interupt status flag */ uint status_value; /**< Interupt status */ uint status_value_edges; /**< Extended interupt status */ uint line_value; int count; /**< Counts the number of interrupts occured. */ uint8_t compare_value; uint8_t filtering_flag; wait_queue_head_t wait_queue; /**< To wait on interrupts. */ unsigned long port_reg; /**< The digital input port. */ unsigned long compare_reg; /**< The register to hold the value to compare with. */ unsigned long mask_reg; /**< The register to hold the mask. */ unsigned long irq_mode_reg; /**< The interrupt mode register. */ unsigned long irq_ctrl_reg; /**< The interrupt control register. */ unsigned long irq_status_reg; /**< The interrupt status register. Also interrupt reseting register (firmware version 7 and later).*/ #ifdef MEDEBUG_DEBUG_REG unsigned long reg_base; #endif unsigned long firmware_version_reg; /**< The interrupt reseting register. */ unsigned long irq_status_low_reg; /**< The interrupt extended status register (low part). */ unsigned long irq_status_high_reg; /**< The interrupt extended status register (high part). */ } me8200_di_subdevice_t; /** * @brief The constructor to generate a ME-8200 digital input subdevice instance. * * @param reg_base The register base address of the device as returned by the PCI BIOS. * * @return Pointer to new instance on success.\n * NULL on error. */ me8200_di_subdevice_t *me8200_di_constructor(uint32_t me8200_reg_base, unsigned int di_idx, int irq, spinlock_t * irq_ctrl_lock, spinlock_t * irq_mode_lock); #endif #endif