| /*************************************************************************/ /*! |
| @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__) */ |