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#ifndef __TASK_API_TASKSETUP_BDTABLE_H
#define __TASK_API_TASKSETUP_BDTABLE_H 1
/******************************************************************************
*
* 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.
*
******************************************************************************/
/*
* Table of BD rings for all BestComm tasks indexed by task ID.
*
* +-----+------+--------------+ +------+-------+
* 0: |numBD|numPtr|BDTablePtr ---|--->|status|dataPtr|
* +-----+------+--------------+ +------+-------+
* 1: |numBD|numPtr|BDTablePtr | |status|dataPtr|
* +-----+------+--------------+ . . .
* 2: |numBD|numPtr|BDTablePtr ---|-+ . . .
* . . . | . . .
* . . . | |status|dataPtr|
* . . . | +------+-------+
* 15:|numBD|numPtr|BDTablePtr | |
* +-----+------+--------------+ |
* |
* V
* +------+--------+--------+
* |status|dataPtr0|dataPtr1|
* +------+--------+--------+
* |status|dataPtr0|dataPtr1|
* . . . .
* . . . .
* . . . .
* |status|dataPtr0|dataPtr1|
* +------+--------+--------+
*/
typedef struct {
uint16 numBD; /* Size of BD ring */
uint8 numPtr; /* Number of data buffer pointers per BD */
uint8 apiConfig; /* API configuration flags */
void *BDTablePtr; /* Pointer to BD tables, must be cast to TaskBD1_t */
/* or TaskBD2_t */
volatile uint32
*BDStartPtr; /* Task's current BD pointer. This pointer is
* used to set a task's BD pointer upon startup.
* It is only valid for BD tasks and only after
* TaskSetup() or TaskBDReset() are called. You
* cannot use this to track a task's BD pointer.
*/
uint16 currBDInUse; /* Current number of buffer descriptors assigned but*/
/* not released yet. */
} TaskBDIdxTable_t;
typedef enum {
API_CONFIG_NONE = 0x00,
API_CONFIG_BD_FLAG = 0x01
} ApiConfig_t;
/*
* Allocates BD table if needed and updates the BD index table.
* Do we want to hide this from the C API since it operates on task API?
*/
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 );
#endif /* __TASK_API_TASKSETUP_BDTABLE_H */
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