| /** |
| * @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 |