3fedd14818
Originally written by Guenter Gebhardt <g.gebhardt@meilhaus.de> and Krzysztof Gantzke <k.gantzke@meilhaus.de> This is the drv/lnx/mod directory of ME-IDS 1.2.9 tarball with some files from drv/lnx/include. Signed-off-by: David Kiliani <mail@davidkiliani.de> Cc: Guenter Gebhardt <g.gebhardt@meilhaus.de> Cc: Krzysztof Gantzke <k.gantzke@meilhaus.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
/**
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* @file me1400_ext_irq.h
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*
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* @brief ME-1400 external interrupt implementation.
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* @note Copyright (C) 2006 Meilhaus Electronic GmbH (support@meilhaus.de)
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* @author Guenter Gebhardt
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*/
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#ifndef _ME1400_EXT_IRQ_H_
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#define _ME1400_EXT_IRQ_H_
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#include <linux/sched.h>
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#include "mesubdevice.h"
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#include "meslock.h"
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#ifdef __KERNEL__
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/**
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* @brief The ME-1400 external interrupt subdevice class.
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*/
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typedef struct me1400_ext_irq_subdevice {
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/* Inheritance */
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me_subdevice_t base; /**< The subdevice base class. */
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/* Attributes */
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spinlock_t subdevice_lock; /**< Spin lock to protect the subdevice from concurrent access. */
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spinlock_t *clk_src_reg_lock; /**< Lock protecting the clock control register. */
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wait_queue_head_t wait_queue; /**< Queue to put on threads waiting for an interrupt. */
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uint32_t device_id; /**< The device id of the device holding the subdevice. */
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int irq; /**< The irq number assigned by PCI BIOS. */
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int rised; /**< If true an interrupt has occured. */
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unsigned int n; /**< The number of interrupt since the driver was loaded. */
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unsigned long plx_intcs_reg; /**< The PLX interrupt control and status register. */
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unsigned long ctrl_reg; /**< The control register. */
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#ifdef MEDEBUG_DEBUG_REG
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unsigned long reg_base;
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#endif
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} me1400_ext_irq_subdevice_t;
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/**
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* @brief The constructor to generate a ME-1400 external interrupt instance.
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*
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* @param plx_reg_base The register base address of the PLX chip as returned by the PCI BIOS.
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* @param me1400_reg_base The register base address of the ME-1400 device as returned by the PCI BIOS.
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* @param irq The irq assigned by the PCI BIOS.
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*
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* @return Pointer to new instance on success.\n
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* NULL on error.
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*/
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me1400_ext_irq_subdevice_t *me1400_ext_irq_constructor(uint32_t device_id,
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uint32_t plx_reg_base,
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uint32_t me1400_reg_base,
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spinlock_t *
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clk_src_reg_lock,
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int irq);
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#endif
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#endif
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