/*************************************************************************/ /*!
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@File
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@Title Debug driver file
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@Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved
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@License Dual MIT/GPLv2
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The contents of this file are subject to the MIT license as set out below.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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Alternatively, the contents of this file may be used under the terms of
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the GNU General Public License Version 2 ("GPL") in which case the provisions
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of GPL are applicable instead of those above.
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If you wish to allow use of your version of this file only under the terms of
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GPL, and not to allow others to use your version of this file under the terms
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of the MIT license, indicate your decision by deleting the provisions above
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and replace them with the notice and other provisions required by GPL as set
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out in the file called "GPL-COPYING" included in this distribution. If you do
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not delete the provisions above, a recipient may use your version of this file
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under the terms of either the MIT license or GPL.
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This License is also included in this distribution in the file called
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"MIT-COPYING".
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EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS
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PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
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BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR
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COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/ /**************************************************************************/
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#include <linux/errno.h>
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#include <linux/module.h>
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#include <linux/fs.h>
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/mm.h>
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#include <linux/string.h>
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#include <asm/page.h>
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#include <linux/vmalloc.h>
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#include <linux/mutex.h>
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#include <linux/hardirq.h>
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#if defined(SUPPORT_DBGDRV_EVENT_OBJECTS)
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#include <linux/sched.h>
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#include <linux/wait.h>
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#include <linux/jiffies.h>
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#include <linux/delay.h>
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#endif /* defined(SUPPORT_DBGDRV_EVENT_OBJECTS) */
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#include "img_types.h"
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#include "pvr_debug.h"
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#include "dbgdrvif_srv5.h"
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#include "hostfunc.h"
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#include "dbgdriv.h"
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/*!
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******************************************************************************
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@Function HostMemSet
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@Description Function that does the same as the C memset() functions
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@Modified *pvDest : pointer to start of buffer to be set
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@Input ui8Value: value to set each byte to
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@Input ui32Size : number of bytes to set
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@Return void
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******************************************************************************/
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void HostMemSet(void *pvDest, IMG_UINT8 ui8Value, IMG_UINT32 ui32Size)
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{
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memset(pvDest, (int) ui8Value, (size_t) ui32Size);
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}
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/*!
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******************************************************************************
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@Function HostMemCopy
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@Description Copies memory around
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@Input pvDst - pointer to dst
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@Output pvSrc - pointer to src
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@Input ui32Size - bytes to copy
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@Return none
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******************************************************************************/
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void HostMemCopy(void *pvDst, void *pvSrc, IMG_UINT32 ui32Size)
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{
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#if defined(USE_UNOPTIMISED_MEMCPY)
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unsigned char *src,*dst;
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int i;
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src=(unsigned char *)pvSrc;
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dst=(unsigned char *)pvDst;
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for(i=0;i<ui32Size;i++)
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{
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dst[i]=src[i];
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}
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#else
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memcpy(pvDst, pvSrc, ui32Size);
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#endif
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}
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IMG_UINT32 HostReadRegistryDWORDFromString(char *pcKey, char *pcValueName, IMG_UINT32 *pui32Data)
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{
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/* XXX Not yet implemented */
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return 0;
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}
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void * HostPageablePageAlloc(IMG_UINT32 ui32Pages)
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{
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return (void*)vmalloc(ui32Pages * PAGE_SIZE);/*, GFP_KERNEL);*/
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}
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void HostPageablePageFree(void * pvBase)
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{
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vfree(pvBase);
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}
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void * HostNonPageablePageAlloc(IMG_UINT32 ui32Pages)
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{
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return (void*)vmalloc(ui32Pages * PAGE_SIZE);/*, GFP_KERNEL);*/
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}
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void HostNonPageablePageFree(void * pvBase)
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{
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vfree(pvBase);
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}
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void * HostMapKrnBufIntoUser(void * pvKrnAddr, IMG_UINT32 ui32Size, void **ppvMdl)
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{
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/* XXX Not yet implemented */
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return NULL;
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}
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void HostUnMapKrnBufFromUser(void * pvUserAddr, void * pvMdl, void * pvProcess)
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{
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/* XXX Not yet implemented */
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}
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void HostCreateRegDeclStreams(void)
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{
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/* XXX Not yet implemented */
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}
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#if defined(SUPPORT_DBGDRV_EVENT_OBJECTS)
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#define EVENT_WAIT_TIMEOUT_MS 500
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#define EVENT_WAIT_TIMEOUT_JIFFIES (EVENT_WAIT_TIMEOUT_MS * HZ / 1000)
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static int iStreamData;
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static wait_queue_head_t sStreamDataEvent;
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IMG_INT32 HostCreateEventObjects(void)
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{
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init_waitqueue_head(&sStreamDataEvent);
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return 0;
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}
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void HostWaitForEvent(DBG_EVENT eEvent)
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{
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switch(eEvent)
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{
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case DBG_EVENT_STREAM_DATA:
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/*
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* More than one process may be woken up.
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* Any process that wakes up should consume
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* all the data from the streams.
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*/
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wait_event_interruptible_timeout(sStreamDataEvent, iStreamData != 0, EVENT_WAIT_TIMEOUT_JIFFIES);
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iStreamData = 0;
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break;
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default:
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/*
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* For unknown events, enter an interruptible sleep.
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*/
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msleep_interruptible(EVENT_WAIT_TIMEOUT_MS);
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break;
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}
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}
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void HostSignalEvent(DBG_EVENT eEvent)
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{
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switch(eEvent)
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{
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case DBG_EVENT_STREAM_DATA:
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iStreamData = 1;
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wake_up_interruptible(&sStreamDataEvent);
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break;
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default:
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break;
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}
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}
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void HostDestroyEventObjects(void)
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{
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}
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#endif /* defined(SUPPORT_DBGDRV_EVENT_OBJECTS) */
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