/*************************************************************************/ /*!
|
@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.
|
*/ /**************************************************************************/
|
|
#include <linux/interrupt.h>
|
|
#include "pvr_debug.h"
|
#include "allocmem.h"
|
#include "interrupt_support.h"
|
|
typedef struct LISR_DATA_TAG
|
{
|
IMG_UINT32 ui32IRQ;
|
PFN_SYS_LISR pfnLISR;
|
void *pvData;
|
} LISR_DATA;
|
|
static irqreturn_t SystemISRWrapper(int irq, void *dev_id)
|
{
|
LISR_DATA *psLISRData = (LISR_DATA *)dev_id;
|
|
PVR_UNREFERENCED_PARAMETER(irq);
|
|
if (psLISRData)
|
{
|
if (psLISRData->pfnLISR(psLISRData->pvData))
|
{
|
return IRQ_HANDLED;
|
}
|
}
|
else
|
{
|
PVR_DPF((PVR_DBG_ERROR, "%s: Missing interrupt data", __FUNCTION__));
|
}
|
|
return IRQ_NONE;
|
}
|
|
PVRSRV_ERROR OSInstallSystemLISR(IMG_HANDLE *phLISR,
|
IMG_UINT32 ui32IRQ,
|
const IMG_CHAR *pszDevName,
|
PFN_SYS_LISR pfnLISR,
|
void *pvData,
|
IMG_UINT32 ui32Flags)
|
{
|
LISR_DATA *psLISRData;
|
unsigned long ulIRQFlags = 0;
|
|
if (pfnLISR == NULL || pvData == NULL)
|
{
|
return PVRSRV_ERROR_INVALID_PARAMS;
|
}
|
|
if (ui32Flags & ~SYS_IRQ_FLAG_MASK)
|
{
|
return PVRSRV_ERROR_INVALID_PARAMS;
|
}
|
|
switch (ui32Flags & SYS_IRQ_FLAG_TRIGGER_MASK)
|
{
|
case SYS_IRQ_FLAG_TRIGGER_DEFAULT:
|
break;
|
case SYS_IRQ_FLAG_TRIGGER_LOW:
|
ulIRQFlags |= IRQF_TRIGGER_LOW;
|
break;
|
case SYS_IRQ_FLAG_TRIGGER_HIGH:
|
ulIRQFlags |= IRQF_TRIGGER_HIGH;
|
break;
|
default:
|
return PVRSRV_ERROR_INVALID_PARAMS;
|
}
|
|
if (ui32Flags & SYS_IRQ_FLAG_SHARED)
|
{
|
ulIRQFlags |= IRQF_SHARED;
|
}
|
|
psLISRData = OSAllocMem(sizeof *psLISRData);
|
if (psLISRData == NULL)
|
{
|
return PVRSRV_ERROR_OUT_OF_MEMORY;
|
}
|
|
psLISRData->ui32IRQ = ui32IRQ;
|
psLISRData->pfnLISR = pfnLISR;
|
psLISRData->pvData = pvData;
|
|
if (request_irq(ui32IRQ, SystemISRWrapper, ulIRQFlags, pszDevName, psLISRData))
|
{
|
OSFreeMem(psLISRData);
|
|
return PVRSRV_ERROR_UNABLE_TO_REGISTER_ISR_HANDLER;
|
}
|
|
*phLISR = (IMG_HANDLE)psLISRData;
|
|
return PVRSRV_OK;
|
}
|
|
PVRSRV_ERROR OSUninstallSystemLISR(IMG_HANDLE hLISR)
|
{
|
LISR_DATA *psLISRData = (LISR_DATA *)hLISR;
|
|
if (psLISRData == NULL)
|
{
|
return PVRSRV_ERROR_INVALID_PARAMS;
|
}
|
|
free_irq(psLISRData->ui32IRQ, psLISRData);
|
|
OSFreeMem(psLISRData);
|
|
return PVRSRV_OK;
|
}
|
