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/******************************************************************************
*
* Copyright (c) 2004 Freescale Semiconductor, Inc.
*
* 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.
*
* 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. 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 "bestcomm_api.h"
#include "task_api/tasksetup_bdtable.h"
#include "include/mgt5200/mgt5200.h"
#ifdef __MWERKS__
__declspec(section ".text") extern const uint32 taskTable;
__declspec(section ".text") extern const uint32 taskTableBytes;
__declspec(section ".text") extern const uint32 taskTableTasks;
__declspec(section ".text") extern const uint32 offsetEntry;
#else
extern const uint32 taskTable;
extern const uint32 taskTableBytes;
extern const uint32 taskTableTasks;
extern const uint32 offsetEntry;
#endif
TaskBDIdxTable_t TaskBDIdxTable[MAX_TASKS];
static uint8 *TaskTableFree = 0;
void TaskSetup_BDTable(volatile uint32 *BasePtr, volatile uint32 *LastPtr, volatile uint32 *StartPtr,
int TaskNum, uint32 NumBD, uint16 MaxBD,
uint8 NumPtr, ApiConfig_t ApiConfig, uint32 Status)
{
int i, j;
uint32 *ptr;
/*
* If another process has not used SRAM already, then the start value
* will have to be passed in using the TasksSetSramOffset() function.
*/
if (SramOffsetGlobal == 0) {
SramOffsetGlobal = taskTableBytes;
}
TaskTableFree = MBarGlobal + MBAR_SRAM + SramOffsetGlobal;
/*
* First time through the Buffer Descriptor table configuration
* set the buffer descriptor table with parameters that will not
* change since they are determined by the task itself. The
* SramOffsetGlobal variable must be updated to reflect the new SRAM
* space used by the buffer descriptor table. The next time through
* this function (i.e. TaskSetup called again) the only parameters
* that should be changed are the LastPtr pointers and the NumBD part
* of the table.
*/
if (TaskBDIdxTable[TaskNum].BDTablePtr == 0) {
TaskBDIdxTable[TaskNum].BDTablePtr = TaskTableFree;
TaskBDIdxTable[TaskNum].numPtr = NumPtr;
TaskBDIdxTable[TaskNum].apiConfig = ApiConfig;
TaskBDIdxTable[TaskNum].BDStartPtr = StartPtr;
*StartPtr = *BasePtr = (uint32)((uint32)TaskBDIdxTable[TaskNum].BDTablePtr
+ MBarPhysOffsetGlobal);
switch (NumPtr) {
case 1:
SramOffsetGlobal += MaxBD*sizeof(TaskBD1_t);
break;
case 2:
SramOffsetGlobal += MaxBD*sizeof(TaskBD2_t);
break;
default:
/* error */
break;
}
}
TaskBDIdxTable[TaskNum].currBDInUse = 0;
TaskBDIdxTable[TaskNum].numBD = (uint16)NumBD;
switch (NumPtr) {
case 1:
*LastPtr = (uint32)(*BasePtr + sizeof(TaskBD1_t) * (NumBD - 1));
break;
case 2:
*LastPtr = (uint32)(*BasePtr + sizeof(TaskBD2_t) * (NumBD - 1));
break;
default:
/* error */
break;
}
/*
* Set the status bits. Clear the data pointers.
*/
if (MaxBD > 0) {
ptr = TaskBDIdxTable[TaskNum].BDTablePtr;
for (i = 0; i < NumBD; i++) {
*(ptr++) = Status;
for (j = 0; j < NumPtr; j++) {
*(ptr++) = 0x0;
}
}
}
}
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