drivers/staging/meilhaus/me8200_do.h

   1 /**
   2  * @file me8200_do.h
   3  *
   4  * @brief ME-8200 digital output 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 _ME8200_DO_H_
  28 #define _ME8200_DO_H_
  29
  30 #include "mesubdevice.h"
  31
  32 #ifdef __KERNEL__
  33
  34 /**
  35  * @brief The template subdevice class.
  36  */
  37 typedef struct me8200_do_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 *irq_mode_lock;
  44
  45         int irq;                                /**< The number of the interrupt request */
  46         int rised;                              /**< Flag to indicate if an interrupt occured */
  47         int count;                              /**< Counts the number of interrupts occured */
  48         wait_queue_head_t wait_queue;           /**< To wait on interrupts */
  49
  50         unsigned int do_idx;                    /**< The number of the digital output */
  51
  52         unsigned long port_reg;                 /**< The digital output port */
  53         unsigned long irq_ctrl_reg;             /**< The interrupt control register */
  54         unsigned long irq_status_reg;           /**< The interrupt status register */
  55 #ifdef MEDEBUG_DEBUG_REG
  56         unsigned long reg_base;
  57 #endif
  58 } me8200_do_subdevice_t;
  59
  60 /**
  61  * @brief The constructor to generate a ME-8200 digital output subdevice instance.
  62  *
  63  * @param reg_base The register base address of the device as returned by the PCI BIOS.
  64  * @param do_idx The index of the digital output subdevice on this device.
  65  *
  66  * @return Pointer to new instance on success.\n
  67  * NULL on error.
  68  */
  69 me8200_do_subdevice_t *me8200_do_constructor(uint32_t reg_base,
  70                                              unsigned int do_idx,
  71                                              int irq,
  72                                              spinlock_t * irq_mode_lock);
  73
  74 #endif
  75 #endif