| /*************************************************************************/ /*! |
| @File |
| @Title Debug driver 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/errno.h> |
| #include <linux/module.h> |
| #include <linux/fs.h> |
| #include <linux/kernel.h> |
| #include <linux/slab.h> |
| #include <linux/mm.h> |
| #include <linux/string.h> |
| #include <asm/page.h> |
| #include <linux/vmalloc.h> |
| #include <linux/mutex.h> |
| #include <linux/hardirq.h> |
| |
| #if defined(SUPPORT_DBGDRV_EVENT_OBJECTS) |
| #include <linux/sched.h> |
| #include <linux/wait.h> |
| #include <linux/jiffies.h> |
| #include <linux/delay.h> |
| #endif /* defined(SUPPORT_DBGDRV_EVENT_OBJECTS) */ |
| |
| #include "img_types.h" |
| #include "pvr_debug.h" |
| |
| #include "dbgdrvif_srv5.h" |
| #include "hostfunc.h" |
| #include "dbgdriv.h" |
| |
| |
| /*! |
| ****************************************************************************** |
| |
| @Function HostMemSet |
| |
| @Description Function that does the same as the C memset() functions |
| |
| @Modified *pvDest : pointer to start of buffer to be set |
| |
| @Input ui8Value: value to set each byte to |
| |
| @Input ui32Size : number of bytes to set |
| |
| @Return void |
| |
| ******************************************************************************/ |
| void HostMemSet(void *pvDest, IMG_UINT8 ui8Value, IMG_UINT32 ui32Size) |
| { |
| memset(pvDest, (int) ui8Value, (size_t) ui32Size); |
| } |
| |
| /*! |
| ****************************************************************************** |
| |
| @Function HostMemCopy |
| |
| @Description Copies memory around |
| |
| @Input pvDst - pointer to dst |
| @Output pvSrc - pointer to src |
| @Input ui32Size - bytes to copy |
| |
| @Return none |
| |
| ******************************************************************************/ |
| void HostMemCopy(void *pvDst, void *pvSrc, IMG_UINT32 ui32Size) |
| { |
| #if defined(USE_UNOPTIMISED_MEMCPY) |
| unsigned char *src,*dst; |
| int i; |
| |
| src=(unsigned char *)pvSrc; |
| dst=(unsigned char *)pvDst; |
| for(i=0;i<ui32Size;i++) |
| { |
| dst[i]=src[i]; |
| } |
| #else |
| memcpy(pvDst, pvSrc, ui32Size); |
| #endif |
| } |
| |
| IMG_UINT32 HostReadRegistryDWORDFromString(char *pcKey, char *pcValueName, IMG_UINT32 *pui32Data) |
| { |
| /* XXX Not yet implemented */ |
| return 0; |
| } |
| |
| void * HostPageablePageAlloc(IMG_UINT32 ui32Pages) |
| { |
| return (void*)vmalloc(ui32Pages * PAGE_SIZE);/*, GFP_KERNEL);*/ |
| } |
| |
| void HostPageablePageFree(void * pvBase) |
| { |
| vfree(pvBase); |
| } |
| |
| void * HostNonPageablePageAlloc(IMG_UINT32 ui32Pages) |
| { |
| return (void*)vmalloc(ui32Pages * PAGE_SIZE);/*, GFP_KERNEL);*/ |
| } |
| |
| void HostNonPageablePageFree(void * pvBase) |
| { |
| vfree(pvBase); |
| } |
| |
| void * HostMapKrnBufIntoUser(void * pvKrnAddr, IMG_UINT32 ui32Size, void **ppvMdl) |
| { |
| /* XXX Not yet implemented */ |
| return NULL; |
| } |
| |
| void HostUnMapKrnBufFromUser(void * pvUserAddr, void * pvMdl, void * pvProcess) |
| { |
| /* XXX Not yet implemented */ |
| } |
| |
| void HostCreateRegDeclStreams(void) |
| { |
| /* XXX Not yet implemented */ |
| } |
| |
| #if defined(SUPPORT_DBGDRV_EVENT_OBJECTS) |
| |
| #define EVENT_WAIT_TIMEOUT_MS 500 |
| #define EVENT_WAIT_TIMEOUT_JIFFIES (EVENT_WAIT_TIMEOUT_MS * HZ / 1000) |
| |
| static int iStreamData; |
| static wait_queue_head_t sStreamDataEvent; |
| |
| IMG_INT32 HostCreateEventObjects(void) |
| { |
| init_waitqueue_head(&sStreamDataEvent); |
| |
| return 0; |
| } |
| |
| void HostWaitForEvent(DBG_EVENT eEvent) |
| { |
| switch(eEvent) |
| { |
| case DBG_EVENT_STREAM_DATA: |
| /* |
| * More than one process may be woken up. |
| * Any process that wakes up should consume |
| * all the data from the streams. |
| */ |
| wait_event_interruptible_timeout(sStreamDataEvent, iStreamData != 0, EVENT_WAIT_TIMEOUT_JIFFIES); |
| iStreamData = 0; |
| break; |
| default: |
| /* |
| * For unknown events, enter an interruptible sleep. |
| */ |
| msleep_interruptible(EVENT_WAIT_TIMEOUT_MS); |
| break; |
| } |
| } |
| |
| void HostSignalEvent(DBG_EVENT eEvent) |
| { |
| switch(eEvent) |
| { |
| case DBG_EVENT_STREAM_DATA: |
| iStreamData = 1; |
| wake_up_interruptible(&sStreamDataEvent); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| void HostDestroyEventObjects(void) |
| { |
| } |
| #endif /* defined(SUPPORT_DBGDRV_EVENT_OBJECTS) */ |