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- /*************************************************************************/ /*!
- @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
- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- copies of the Software, and to permit persons to whom the Software is
- furnished to do so, subject to the following conditions:
- The above copyright notice and this permission notice shall be included in
- all copies or substantial portions of the Software.
- Alternatively, the contents of this file may be used under the terms of
- the GNU General Public License Version 2 ("GPL") in which case the provisions
- of GPL are applicable instead of those above.
- If you wish to allow use of your version of this file only under the terms of
- GPL, and not to allow others to use your version of this file under the terms
- of the MIT license, indicate your decision by deleting the provisions above
- and replace them with the notice and other provisions required by GPL as set
- out in the file called "GPL-COPYING" included in this distribution. If you do
- not delete the provisions above, a recipient may use your version of this file
- under the terms of either the MIT license or GPL.
- This License is also included in this distribution in the file called
- "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
- BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
- PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR
- COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
- IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */ /**************************************************************************/
- #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) */
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