drivers/misc/mediatek/gpu/gpu_rgx/m1.11_5516664/interrupt_support.h

/*************************************************************************/ /*!
@File
@Copyright      Copyright (c) Imagination Technologies Ltd. All Rights Reserved
@License        Dual MIT/GPLv2

The contents of this file are subject to the MIT license as set out below.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
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The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

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the GNU General Public License Version 2 ("GPL") in which case the provisions
of GPL are applicable instead of those above.

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of the MIT license, indicate your decision by deleting the provisions above
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not delete the provisions above, a recipient may use your version of this file
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"MIT-COPYING".

EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS
PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
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*/ /**************************************************************************/

#if !defined(__INTERRUPT_SUPPORT_H__)
#define __INTERRUPT_SUPPORT_H__

#include "img_types.h"
#include "pvrsrv_error.h"
#include "pvrsrv_device.h"

/*! Default trigger type for the interrupt line. */
#define SYS_IRQ_FLAG_TRIGGER_DEFAULT (0x0 << 0)
/*! Interrupt triggered when interrupt line is low. */
#define SYS_IRQ_FLAG_TRIGGER_LOW     (0x1 << 0)
/*! Interrupt triggered when interrupt line is high. */
#define SYS_IRQ_FLAG_TRIGGER_HIGH    (0x2 << 0)
/*! Interrupt trigger mask. */
#define SYS_IRQ_FLAG_TRIGGER_MASK    (SYS_IRQ_FLAG_TRIGGER_DEFAULT | \
                                      SYS_IRQ_FLAG_TRIGGER_LOW | \
                                      SYS_IRQ_FLAG_TRIGGER_HIGH)
/*! The irq is allowed to be shared among several devices. */
#define SYS_IRQ_FLAG_SHARED          (0x1 << 8)

/*! Interrupt flags mask. */
#define SYS_IRQ_FLAG_MASK            (SYS_IRQ_FLAG_TRIGGER_MASK | \
                                      SYS_IRQ_FLAG_SHARED)

/*************************************************************************/ /*!
@Description    Pointer to a system Low-level Interrupt Service Routine (LISR).
@Input  pvData  Private data provided to the LISR.
@Return         IMG_TRUE if interrupt handled, IMG_FALSE otherwise.
*/ /**************************************************************************/
typedef IMG_BOOL (*PFN_SYS_LISR)(void *pvData);

/*************************************************************************/ /*!
@Function       OSInstallSystemLISR
@Description    Installs a system low-level interrupt handler
@Output         phLISR                  On return, contains a handle to the
                                        installed LISR
@Input          ui32IRQ                 The IRQ number for which the
                                        interrupt handler should be installed
@Input          pszDevName              Name of the device for which the handler
                                        is being installed
@Input          pfnLISR                 A pointer to an interrupt handler
                                        function
@Input          pvData                  A pointer to data that should be passed
                                        to pfnLISR when it is called
@Input          ui32Flags               Interrupt flags
@Return         PVRSRV_OK on success, a failure code otherwise
*/ /**************************************************************************/
PVRSRV_ERROR OSInstallSystemLISR(IMG_HANDLE *phLISR,
				 IMG_UINT32 ui32IRQ,
				 const IMG_CHAR *pszDevName,
				 PFN_SYS_LISR pfnLISR,
				 void *pvData,
				 IMG_UINT32 ui32Flags);

/*************************************************************************/ /*!
@Function       OSUninstallSystemLISR
@Description    Uninstalls a system low-level interrupt handler
@Input          hLISRData              The handle to the LISR to uninstall
@Return         PVRSRV_OK on success, a failure code otherwise
*/ /**************************************************************************/
PVRSRV_ERROR OSUninstallSystemLISR(IMG_HANDLE hLISRData);
#endif /* !defined(__INTERRUPT_SUPPORT_H__) */