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Diffstat (limited to 'drivers/staging/meilhaus/me8200_di.h')
| -rw-r--r-- | drivers/staging/meilhaus/me8200_di.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/drivers/staging/meilhaus/me8200_di.h b/drivers/staging/meilhaus/me8200_di.h new file mode 100644 index 000000000000..2a3b005b67d4 --- /dev/null +++ b/drivers/staging/meilhaus/me8200_di.h @@ -0,0 +1,92 @@ +/** + * @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 |