drivers/staging/meilhaus/me8100_di.h

   1 /**
   2  * @file me8100_di.h
   3  *
   4  * @brief ME-8100 digital input subdevice class.
   5  * @note Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de)
   6  * @author Guenter Gebhardt
   7  */
   8
   9 /*
  10  * Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de)
  11  *
  12  * This file is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  25  */
  26
  27 #ifndef _ME8100_DI_H_
  28 #define _ME8100_DI_H_
  29
  30 #include "mesubdevice.h"
  31
  32 #ifdef __KERNEL__
  33
  34 /**
  35  * @brief The template subdevice class.
  36  */
  37 typedef struct me8100_di_subdevice {
  38         // Inheritance
  39         me_subdevice_t base;                    /**< The subdevice base class. */
  40
  41         /* Attributes */
  42         spinlock_t subdevice_lock;              /**< Spin lock to protect the subdevice from concurrent access. */
  43         spinlock_t *ctrl_reg_lock;
  44
  45         unsigned di_idx;
  46
  47         int irq;
  48         volatile int rised;
  49         unsigned int irq_count;
  50
  51         uint status_flag;                               /**< Default interupt status flag */
  52         uint status_value;                              /**< Interupt status */
  53         uint status_value_edges;                /**< Extended interupt status */
  54         uint line_value;
  55
  56         uint16_t compare_value;
  57         uint8_t filtering_flag;
  58
  59         wait_queue_head_t wait_queue;
  60
  61         unsigned long ctrl_reg;
  62         unsigned long port_reg;
  63         unsigned long mask_reg;
  64         unsigned long pattern_reg;
  65         unsigned long long din_int_reg;
  66         unsigned long irq_reset_reg;
  67         unsigned long irq_status_reg;
  68 #ifdef MEDEBUG_DEBUG_REG
  69         unsigned long reg_base;
  70 #endif
  71
  72 } me8100_di_subdevice_t;
  73
  74 /**
  75  * @brief The constructor to generate a ME-8100 digital input subdevice instance.
  76  *
  77  * @param reg_base The register base address of the device as returned by the PCI BIOS.
  78  *
  79  * @return Pointer to new instance on success.\n
  80  * NULL on error.
  81  */
  82 me8100_di_subdevice_t *me8100_di_constructor(uint32_t me8100_reg_base,
  83                                              uint32_t plx_reg_base,
  84                                              unsigned int di_idx,
  85                                              int irq,
  86                                              spinlock_t * ctrl_leg_lock);
  87
  88 #endif
  89 #endif