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/*
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* TxnQueue.c
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*
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* Copyright(c) 1998 - 2010 Texas Instruments. All rights reserved.
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* All rights reserved.
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*
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* This program and the accompanying materials are made available under the
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* terms of the Eclipse Public License v1.0 or BSD License which accompanies
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* this distribution. The Eclipse Public License is available at
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* http://www.eclipse.org/legal/epl-v10.html and the BSD License is as below.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name Texas Instruments nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/** \file TxnQueue.c
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* \brief The transaction-queue module.
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*
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* The Transaction Queue encapsulates the bus access from a functional driver (WLAN, BT).
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* This TI proprietary module presents the same interface and same behavior for different
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* bus configuration: SDIO (multi or single function) or SPI and for different modes
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* of operation: Synchronous, a-synchronous or combination of both.
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* It will also be used over the RS232 interface (using wUART protocol) which is applicable
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* for RS applications (on PC).
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*
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* The TxnQ module provides the following requirements:
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* Inter process protection on queue's internal database and synchronization between
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* functional drivers that share the bus.
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* Support multiple queues per function, handled by priority.
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* Support the TTxnStruct API (as the Bus Driver) with the ability to manage commands
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* queuing of multiple functions on top of the Bus Driver.
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* The TxnQ (as well as the layers above it) is agnostic to the bus driver used beneath it
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* (SDIO, WSPI or wUART), since all bus drivers introduce the same API and hide bus details.
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* The TxnQ has no OS dependencies. It supports access from multiple OS threads.
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* Note: It is assumed that any transaction forwarded to the TxnQ has enough resources in HW.
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*
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* \see TxnQueue.h
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*/
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#define __FILE_ID__ FILE_ID_123
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#include "tidef.h"
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#include "report.h"
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#include "context.h"
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#include "osApi.h"
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#include "TxnDefs.h"
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#include "BusDrv.h"
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#include "TxnQueue.h"
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/************************************************************************
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* Defines
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************************************************************************/
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#define MAX_FUNCTIONS 4 /* Maximum 4 functional drivers (including Func 0 which is for bus control) */
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#define MAX_PRIORITY 2 /* Maximum 2 prioritys per functional driver */
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#define TXN_QUE_SIZE QUE_UNLIMITED_SIZE
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#define TXN_DONE_QUE_SIZE QUE_UNLIMITED_SIZE
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/************************************************************************
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* Types
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************************************************************************/
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/* Functional driver's SM States */
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typedef enum
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{
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FUNC_STATE_NONE, /* Function not registered */
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FUNC_STATE_STOPPED, /* Queues are stopped */
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FUNC_STATE_RUNNING, /* Queues are running */
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FUNC_STATE_RESTART /* Wait for current Txn to finish before restarting queues */
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} EFuncState;
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/* The functional drivers registered to TxnQ */
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typedef struct
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{
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EFuncState eState; /* Function crrent state */
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TI_UINT32 uNumPrios; /* Number of queues (priorities) for this function */
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TTxnQueueDoneCb fTxnQueueDoneCb; /* The CB called by the TxnQueue upon full transaction completion. */
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TI_HANDLE hCbHandle; /* The callback handle */
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TTxnStruct * pSingleStep; /* A single step transaction waiting to be sent */
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} TFuncInfo;
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/* The TxnQueue module Object */
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typedef struct _TTxnQObj
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{
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TI_HANDLE hOs;
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TI_HANDLE hReport;
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TI_HANDLE hContext;
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TI_HANDLE hBusDrv;
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TFuncInfo aFuncInfo[MAX_FUNCTIONS]; /* Registered functional drivers - see above */
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TI_HANDLE aTxnQueues[MAX_FUNCTIONS][MAX_PRIORITY]; /* Handle of the Transactions-Queue */
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TI_HANDLE hTxnDoneQueue; /* Queue for completed transactions not reported to yet to the upper layer */
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TTxnStruct * pCurrTxn; /* The transaction currently processed in the bus driver (NULL if none) */
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TI_UINT32 uMinFuncId; /* The minimal function ID actually registered (through txnQ_Open) */
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TI_UINT32 uMaxFuncId; /* The maximal function ID actually registered (through txnQ_Open) */
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TI_BOOL bSchedulerBusy; /* If set, the scheduler is currently running so it shouldn't be reentered */
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TI_BOOL bSchedulerPend; /* If set, a call to the scheduler was postponed because it was busy */
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/* Environment dependent: TRUE if needed and allowed to protect TxnDone in critical section */
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TTxnDoneCb fConnectCb;
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TI_HANDLE hConnectCb;
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#ifdef TI_DBG
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TI_HANDLE pAggregQueue; /* While Tx aggregation in progress, saves its queue pointer to ensure continuity */
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#endif
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} TTxnQObj;
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/************************************************************************
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* Internal functions prototypes
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************************************************************************/
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static void txnQ_TxnDoneCb (TI_HANDLE hTxnQ, void *hTxn);
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static ETxnStatus txnQ_RunScheduler (TTxnQObj *pTxnQ, TTxnStruct *pInputTxn);
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static ETxnStatus txnQ_Scheduler (TTxnQObj *pTxnQ, TTxnStruct *pInputTxn);
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static TTxnStruct *txnQ_SelectTxn (TTxnQObj *pTxnQ);
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static void txnQ_ConnectCB (TI_HANDLE hTxnQ, void *hTxn);
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/************************************************************************
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*
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* Module functions implementation
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*
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************************************************************************/
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TI_HANDLE txnQ_Create (TI_HANDLE hOs)
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{
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TI_HANDLE hTxnQ;
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TTxnQObj *pTxnQ;
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TI_UINT32 i;
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hTxnQ = os_memoryAlloc(hOs, sizeof(TTxnQObj),MemoryNormal);
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if (hTxnQ == NULL)
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return NULL;
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pTxnQ = (TTxnQObj *)hTxnQ;
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os_memoryZero(hOs, hTxnQ, sizeof(TTxnQObj));
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pTxnQ->hOs = hOs;
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pTxnQ->pCurrTxn = NULL;
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pTxnQ->uMinFuncId = MAX_FUNCTIONS; /* Start at maximum and save minimal value in txnQ_Open */
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pTxnQ->uMaxFuncId = 0; /* Start at minimum and save maximal value in txnQ_Open */
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#ifdef TI_DBG
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pTxnQ->pAggregQueue = NULL;
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#endif
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for (i = 0; i < MAX_FUNCTIONS; i++)
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{
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pTxnQ->aFuncInfo[i].eState = FUNC_STATE_NONE;
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pTxnQ->aFuncInfo[i].uNumPrios = 0;
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pTxnQ->aFuncInfo[i].pSingleStep = NULL;
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pTxnQ->aFuncInfo[i].fTxnQueueDoneCb = NULL;
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pTxnQ->aFuncInfo[i].hCbHandle = NULL;
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}
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/* Create the Bus-Driver module */
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pTxnQ->hBusDrv = busDrv_Create (hOs);
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if (pTxnQ->hBusDrv == NULL)
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{
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WLAN_OS_REPORT(("%s: Error - failed to create BusDrv\n", __FUNCTION__));
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txnQ_Destroy (hTxnQ);
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return NULL;
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}
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return pTxnQ;
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}
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TI_STATUS txnQ_Destroy (TI_HANDLE hTxnQ)
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{
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TTxnQObj *pTxnQ = (TTxnQObj*)hTxnQ;
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if (pTxnQ)
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{
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if (pTxnQ->hBusDrv)
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{
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busDrv_Destroy (pTxnQ->hBusDrv);
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}
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if (pTxnQ->hTxnDoneQueue)
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{
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que_Destroy (pTxnQ->hTxnDoneQueue);
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}
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os_memoryFree (pTxnQ->hOs, pTxnQ, sizeof(TTxnQObj));
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}
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return TI_OK;
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}
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void txnQ_Init (TI_HANDLE hTxnQ, TI_HANDLE hOs, TI_HANDLE hReport, TI_HANDLE hContext)
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{
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TTxnQObj *pTxnQ = (TTxnQObj*)hTxnQ;
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TI_UINT32 uNodeHeaderOffset;
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pTxnQ->hOs = hOs;
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pTxnQ->hReport = hReport;
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pTxnQ->hContext = hContext;
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/* Create the TxnDone queue. */
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uNodeHeaderOffset = TI_FIELD_OFFSET(TTxnStruct, tTxnQNode);
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pTxnQ->hTxnDoneQueue = que_Create (pTxnQ->hOs, pTxnQ->hReport, TXN_DONE_QUE_SIZE, uNodeHeaderOffset);
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if (pTxnQ->hTxnDoneQueue == NULL)
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{
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TRACE0(pTxnQ->hReport, REPORT_SEVERITY_ERROR, ": TxnDone queue creation failed!\n");
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}
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busDrv_Init (pTxnQ->hBusDrv, hReport);
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}
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TI_STATUS txnQ_ConnectBus (TI_HANDLE hTxnQ,
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TBusDrvCfg *pBusDrvCfg,
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TTxnDoneCb fConnectCb,
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TI_HANDLE hConnectCb,
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TI_UINT32 *pRxDmaBufLen,
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TI_UINT32 *pTxDmaBufLen)
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{
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TTxnQObj *pTxnQ = (TTxnQObj*) hTxnQ;
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TRACE0(pTxnQ->hReport, REPORT_SEVERITY_INFORMATION, "txnQ_ConnectBus()\n");
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pTxnQ->fConnectCb = fConnectCb;
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pTxnQ->hConnectCb = hConnectCb;
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return busDrv_ConnectBus (pTxnQ->hBusDrv, pBusDrvCfg, txnQ_TxnDoneCb, hTxnQ, txnQ_ConnectCB);
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}
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TI_STATUS txnQ_DisconnectBus (TI_HANDLE hTxnQ)
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{
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TTxnQObj *pTxnQ = (TTxnQObj*) hTxnQ;
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return busDrv_DisconnectBus (pTxnQ->hBusDrv);
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}
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TI_STATUS txnQ_Open (TI_HANDLE hTxnQ,
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TI_UINT32 uFuncId,
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TI_UINT32 uNumPrios,
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TTxnQueueDoneCb fTxnQueueDoneCb,
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TI_HANDLE hCbHandle)
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{
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TTxnQObj *pTxnQ = (TTxnQObj*) hTxnQ;
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TI_UINT32 uNodeHeaderOffset;
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TI_UINT32 i;
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if (uFuncId >= MAX_FUNCTIONS || uNumPrios > MAX_PRIORITY)
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{
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TRACE2(pTxnQ->hReport, REPORT_SEVERITY_ERROR, ": Invalid Params! uFuncId = %d, uNumPrios = %d\n", uFuncId, uNumPrios);
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return TI_NOK;
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}
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CONTEXT_ENTER_CRITICAL_SECTION (pTxnQ->hContext);
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/* Save functional driver info */
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pTxnQ->aFuncInfo[uFuncId].uNumPrios = uNumPrios;
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pTxnQ->aFuncInfo[uFuncId].fTxnQueueDoneCb = fTxnQueueDoneCb;
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pTxnQ->aFuncInfo[uFuncId].hCbHandle = hCbHandle;
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pTxnQ->aFuncInfo[uFuncId].eState = FUNC_STATE_STOPPED;
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/* Create the functional driver's queues. */
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uNodeHeaderOffset = TI_FIELD_OFFSET(TTxnStruct, tTxnQNode);
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for (i = 0; i < uNumPrios; i++)
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{
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pTxnQ->aTxnQueues[uFuncId][i] = que_Create (pTxnQ->hOs, pTxnQ->hReport, TXN_QUE_SIZE, uNodeHeaderOffset);
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if (pTxnQ->aTxnQueues[uFuncId][i] == NULL)
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{
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TRACE0(pTxnQ->hReport, REPORT_SEVERITY_ERROR, ": Queues creation failed!\n");
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CONTEXT_LEAVE_CRITICAL_SECTION (pTxnQ->hContext);
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return TI_NOK;
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}
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}
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/* Update functions actual range (to optimize Txn selection loops - see txnQ_SelectTxn) */
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if (uFuncId < pTxnQ->uMinFuncId)
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{
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pTxnQ->uMinFuncId = uFuncId;
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}
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if (uFuncId > pTxnQ->uMaxFuncId)
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{
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pTxnQ->uMaxFuncId = uFuncId;
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}
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CONTEXT_LEAVE_CRITICAL_SECTION (pTxnQ->hContext);
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TRACE2(pTxnQ->hReport, REPORT_SEVERITY_INFORMATION, ": Function %d registered successfully, uNumPrios = %d\n", uFuncId, uNumPrios);
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return TI_OK;
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}
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void txnQ_Close (TI_HANDLE hTxnQ, TI_UINT32 uFuncId)
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{
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TTxnQObj *pTxnQ = (TTxnQObj*)hTxnQ;
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TI_UINT32 i;
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CONTEXT_ENTER_CRITICAL_SECTION (pTxnQ->hContext);
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/* Destroy the functional driver's queues */
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for (i = 0; i < pTxnQ->aFuncInfo[uFuncId].uNumPrios; i++)
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{
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que_Destroy (pTxnQ->aTxnQueues[uFuncId][i]);
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}
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/* Clear functional driver info */
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pTxnQ->aFuncInfo[uFuncId].uNumPrios = 0;
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pTxnQ->aFuncInfo[uFuncId].fTxnQueueDoneCb = NULL;
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pTxnQ->aFuncInfo[uFuncId].hCbHandle = NULL;
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pTxnQ->aFuncInfo[uFuncId].eState = FUNC_STATE_NONE;
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/* Update functions actual range (to optimize Txn selection loops - see txnQ_SelectTxn) */
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pTxnQ->uMinFuncId = MAX_FUNCTIONS;
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pTxnQ->uMaxFuncId = 0;
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for (i = 0; i < MAX_FUNCTIONS; i++)
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{
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if (pTxnQ->aFuncInfo[i].eState != FUNC_STATE_NONE)
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{
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if (i < pTxnQ->uMinFuncId)
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{
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pTxnQ->uMinFuncId = i;
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}
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if (i > pTxnQ->uMaxFuncId)
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{
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pTxnQ->uMaxFuncId = i;
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}
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}
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}
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CONTEXT_LEAVE_CRITICAL_SECTION (pTxnQ->hContext);
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TRACE1(pTxnQ->hReport, REPORT_SEVERITY_INFORMATION, ": Function %d Unregistered\n", uFuncId);
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}
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ETxnStatus txnQ_Restart (TI_HANDLE hTxnQ, TI_UINT32 uFuncId)
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{
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TTxnQObj *pTxnQ = (TTxnQObj*) hTxnQ;
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TRACE0(pTxnQ->hReport, REPORT_SEVERITY_INFORMATION, "txnQ_Restart()\n");
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CONTEXT_ENTER_CRITICAL_SECTION (pTxnQ->hContext);
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/* If a Txn from the calling function is in progress, set state to RESTART return PENDING */
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if (pTxnQ->pCurrTxn)
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{
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if (TXN_PARAM_GET_FUNC_ID(pTxnQ->pCurrTxn) == uFuncId)
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{
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pTxnQ->aFuncInfo[uFuncId].eState = FUNC_STATE_RESTART;
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|
371 |
CONTEXT_LEAVE_CRITICAL_SECTION (pTxnQ->hContext);
|
|
372 |
|
|
373 |
TRACE0(pTxnQ->hReport, REPORT_SEVERITY_INFORMATION, "txnQ_Restart(): pCurrTxn pending\n");
|
|
374 |
|
|
375 |
/* Return PENDING to indicate that the restart will be completed later (in TxnDone) */
|
|
376 |
return TXN_STATUS_PENDING;
|
|
377 |
}
|
|
378 |
}
|
|
379 |
|
|
380 |
CONTEXT_LEAVE_CRITICAL_SECTION (pTxnQ->hContext);
|
|
381 |
|
|
382 |
/* Clear the calling function's queues (call function CB with status=RECOVERY) */
|
|
383 |
txnQ_ClearQueues (hTxnQ, uFuncId);
|
|
384 |
|
|
385 |
/* Return COMPLETE to indicate that the restart was completed */
|
|
386 |
return TXN_STATUS_COMPLETE;
|
|
387 |
}
|
|
388 |
|
|
389 |
void txnQ_Run (TI_HANDLE hTxnQ, TI_UINT32 uFuncId)
|
|
390 |
{
|
|
391 |
TTxnQObj *pTxnQ = (TTxnQObj*) hTxnQ;
|
|
392 |
|
|
393 |
#ifdef TI_DBG
|
|
394 |
TRACE0(pTxnQ->hReport, REPORT_SEVERITY_INFORMATION, "txnQ_Run()\n");
|
|
395 |
if (pTxnQ->aFuncInfo[uFuncId].eState != FUNC_STATE_STOPPED)
|
|
396 |
{
|
|
397 |
TRACE2(pTxnQ->hReport, REPORT_SEVERITY_WARNING, "txnQ_Run(): Called while func %d state is %d!\n", uFuncId, pTxnQ->aFuncInfo[uFuncId].eState);
|
|
398 |
}
|
|
399 |
#endif
|
|
400 |
|
|
401 |
/* Enable function's queues */
|
|
402 |
pTxnQ->aFuncInfo[uFuncId].eState = FUNC_STATE_RUNNING;
|
|
403 |
|
|
404 |
/* Send queued transactions as possible */
|
|
405 |
txnQ_RunScheduler (pTxnQ, NULL);
|
|
406 |
}
|
|
407 |
|
|
408 |
void txnQ_Stop (TI_HANDLE hTxnQ, TI_UINT32 uFuncId)
|
|
409 |
{
|
|
410 |
TTxnQObj *pTxnQ = (TTxnQObj*) hTxnQ;
|
|
411 |
|
|
412 |
#ifdef TI_DBG
|
|
413 |
TRACE0(pTxnQ->hReport, REPORT_SEVERITY_INFORMATION, "txnQ_Stop()\n");
|
|
414 |
if (pTxnQ->aFuncInfo[uFuncId].eState != FUNC_STATE_RUNNING)
|
|
415 |
{
|
|
416 |
TRACE2(pTxnQ->hReport, REPORT_SEVERITY_ERROR, "txnQ_Stop(): Called while func %d state is %d!\n", uFuncId, pTxnQ->aFuncInfo[uFuncId].eState);
|
|
417 |
}
|
|
418 |
#endif
|
|
419 |
|
|
420 |
/* Enable function's queues */
|
|
421 |
pTxnQ->aFuncInfo[uFuncId].eState = FUNC_STATE_STOPPED;
|
|
422 |
}
|
|
423 |
|
|
424 |
ETxnStatus txnQ_Transact (TI_HANDLE hTxnQ, TTxnStruct *pTxn)
|
|
425 |
{
|
|
426 |
TTxnQObj *pTxnQ = (TTxnQObj*)hTxnQ;
|
|
427 |
TI_UINT32 uFuncId = TXN_PARAM_GET_FUNC_ID(pTxn);
|
|
428 |
ETxnStatus rc;
|
|
429 |
|
|
430 |
if (TXN_PARAM_GET_SINGLE_STEP(pTxn))
|
|
431 |
{
|
|
432 |
pTxnQ->aFuncInfo[uFuncId].pSingleStep = pTxn;
|
|
433 |
TRACE0(pTxnQ->hReport, REPORT_SEVERITY_INFORMATION, "txnQ_Transact(): Single step Txn\n");
|
|
434 |
}
|
|
435 |
else
|
|
436 |
{
|
|
437 |
TI_STATUS eStatus;
|
|
438 |
TI_HANDLE hQueue = pTxnQ->aTxnQueues[uFuncId][TXN_PARAM_GET_PRIORITY(pTxn)];
|
|
439 |
CONTEXT_ENTER_CRITICAL_SECTION (pTxnQ->hContext);
|
|
440 |
eStatus = que_Enqueue (hQueue, (TI_HANDLE)pTxn);
|
|
441 |
CONTEXT_LEAVE_CRITICAL_SECTION (pTxnQ->hContext);
|
|
442 |
if (eStatus != TI_OK)
|
|
443 |
{
|
|
444 |
TRACE3(pTxnQ->hReport, REPORT_SEVERITY_ERROR, "txnQ_Transact(): Enqueue failed, pTxn=0x%x, HwAddr=0x%x, Len0=%d\n", pTxn, pTxn->uHwAddr, pTxn->aLen[0]);
|
|
445 |
return TXN_STATUS_ERROR;
|
|
446 |
}
|
|
447 |
TRACE0(pTxnQ->hReport, REPORT_SEVERITY_INFORMATION, "txnQ_Transact(): Regular Txn\n");
|
|
448 |
}
|
|
449 |
|
|
450 |
/* Send queued transactions as possible */
|
|
451 |
rc = txnQ_RunScheduler (pTxnQ, pTxn);
|
|
452 |
|
|
453 |
return rc;
|
|
454 |
}
|
|
455 |
|
|
456 |
|
|
457 |
/**
|
|
458 |
* \fn txnQ_ConnectCB
|
|
459 |
* \brief Pending Connection completion CB
|
|
460 |
*
|
|
461 |
* txnQ_ConnectBus CB
|
|
462 |
*
|
|
463 |
* \note
|
|
464 |
* \param hTxnQ - The module's object
|
|
465 |
* \param pTxn - The completed transaction object
|
|
466 |
* \return void
|
|
467 |
* \sa
|
|
468 |
*/
|
|
469 |
static void txnQ_ConnectCB (TI_HANDLE hTxnQ, void *hTxn)
|
|
470 |
{
|
|
471 |
TTxnQObj *pTxnQ = (TTxnQObj*)hTxnQ;
|
|
472 |
|
|
473 |
/* Call the Client Connect CB */
|
|
474 |
pTxnQ->fConnectCb (pTxnQ->hConnectCb, NULL);
|
|
475 |
}
|
|
476 |
|
|
477 |
|
|
478 |
/**
|
|
479 |
* \fn txnQ_TxnDoneCb
|
|
480 |
* \brief Pending Transaction completion CB
|
|
481 |
*
|
|
482 |
* Called back by bus-driver upon pending transaction completion in TxnDone context (external!).
|
|
483 |
* Enqueue completed transaction in TxnDone queue and call scheduler to send queued transactions.
|
|
484 |
*
|
|
485 |
* \note
|
|
486 |
* \param hTxnQ - The module's object
|
|
487 |
* \param pTxn - The completed transaction object
|
|
488 |
* \return void
|
|
489 |
* \sa
|
|
490 |
*/
|
|
491 |
static void txnQ_TxnDoneCb (TI_HANDLE hTxnQ, void *hTxn)
|
|
492 |
{
|
|
493 |
TTxnQObj *pTxnQ = (TTxnQObj*)hTxnQ;
|
|
494 |
TTxnStruct *pTxn = (TTxnStruct *)hTxn;
|
|
495 |
TI_UINT32 uFuncId = TXN_PARAM_GET_FUNC_ID(pTxn);
|
|
496 |
|
|
497 |
#ifdef TI_DBG
|
|
498 |
TRACE0(pTxnQ->hReport, REPORT_SEVERITY_INFORMATION, "txnQ_TxnDoneCb()\n");
|
|
499 |
if (pTxn != pTxnQ->pCurrTxn)
|
|
500 |
{
|
|
501 |
TRACE2(pTxnQ->hReport, REPORT_SEVERITY_ERROR, "txnQ_TxnDoneCb(): CB returned pTxn 0x%x while pCurrTxn is 0x%x !!\n", pTxn, pTxnQ->pCurrTxn);
|
|
502 |
}
|
|
503 |
#endif
|
|
504 |
|
|
505 |
/* If the function of the completed Txn is waiting for restart */
|
|
506 |
if (pTxnQ->aFuncInfo[uFuncId].eState == FUNC_STATE_RESTART)
|
|
507 |
{
|
|
508 |
TRACE0(pTxnQ->hReport, REPORT_SEVERITY_INFORMATION, "txnQ_TxnDoneCb(): Handling restart\n");
|
|
509 |
|
|
510 |
/* First, Clear the restarted function queues */
|
|
511 |
txnQ_ClearQueues (hTxnQ, uFuncId);
|
|
512 |
|
|
513 |
/* Call function CB for current Txn with restart indication */
|
|
514 |
TXN_PARAM_SET_STATUS(pTxn, TXN_PARAM_STATUS_RECOVERY);
|
|
515 |
pTxnQ->aFuncInfo[uFuncId].fTxnQueueDoneCb (pTxnQ->aFuncInfo[uFuncId].hCbHandle, pTxn);
|
|
516 |
}
|
|
517 |
|
|
518 |
/* In the normal case (no restart), enqueue completed transaction in TxnDone queue */
|
|
519 |
else
|
|
520 |
{
|
|
521 |
TI_STATUS eStatus;
|
|
522 |
|
|
523 |
CONTEXT_ENTER_CRITICAL_SECTION (pTxnQ->hContext);
|
|
524 |
eStatus = que_Enqueue (pTxnQ->hTxnDoneQueue, (TI_HANDLE)pTxn);
|
|
525 |
if (eStatus != TI_OK)
|
|
526 |
{
|
|
527 |
TRACE3(pTxnQ->hReport, REPORT_SEVERITY_ERROR, "txnQ_TxnDoneCb(): Enqueue failed, pTxn=0x%x, HwAddr=0x%x, Len0=%d\n", pTxn, pTxn->uHwAddr, pTxn->aLen[0]);
|
|
528 |
}
|
|
529 |
CONTEXT_LEAVE_CRITICAL_SECTION (pTxnQ->hContext);
|
|
530 |
}
|
|
531 |
|
|
532 |
/* Indicate that no transaction is currently processed in the bus-driver */
|
|
533 |
pTxnQ->pCurrTxn = NULL;
|
|
534 |
|
|
535 |
/* Send queued transactions as possible (TRUE indicates we are in external context) */
|
|
536 |
txnQ_RunScheduler (pTxnQ, NULL);
|
|
537 |
}
|
|
538 |
|
|
539 |
|
|
540 |
/**
|
|
541 |
* \fn txnQ_RunScheduler
|
|
542 |
* \brief Send queued transactions
|
|
543 |
*
|
|
544 |
* Run the scheduler, which issues transactions as long as possible.
|
|
545 |
* Since this function is called from either internal or external (TxnDone) context,
|
|
546 |
* it handles reentry by setting a bSchedulerPend flag, and running the scheduler again
|
|
547 |
* when its current iteration is finished.
|
|
548 |
*
|
|
549 |
* \note
|
|
550 |
* \param pTxnQ - The module's object
|
|
551 |
* \param pInputTxn - The transaction inserted in the current context (NULL if none)
|
|
552 |
* \return COMPLETE if pCurrTxn completed in this context, PENDING if not, ERROR if failed
|
|
553 |
* \sa
|
|
554 |
*/
|
|
555 |
static ETxnStatus txnQ_RunScheduler (TTxnQObj *pTxnQ, TTxnStruct *pInputTxn)
|
|
556 |
{
|
|
557 |
TI_BOOL bFirstIteration;
|
|
558 |
ETxnStatus eStatus = TXN_STATUS_NONE;
|
|
559 |
|
|
560 |
TRACE0(pTxnQ->hReport, REPORT_SEVERITY_INFORMATION, "txnQ_RunScheduler()\n");
|
|
561 |
|
|
562 |
CONTEXT_ENTER_CRITICAL_SECTION (pTxnQ->hContext);
|
|
563 |
|
|
564 |
/* If the scheduler is currently busy, set bSchedulerPend flag and exit */
|
|
565 |
if (pTxnQ->bSchedulerBusy)
|
|
566 |
{
|
|
567 |
TRACE0(pTxnQ->hReport, REPORT_SEVERITY_INFORMATION, "txnQ_RunScheduler(): Scheduler is busy\n");
|
|
568 |
pTxnQ->bSchedulerPend = TI_TRUE;
|
|
569 |
CONTEXT_LEAVE_CRITICAL_SECTION (pTxnQ->hContext);
|
|
570 |
return TXN_STATUS_PENDING;
|
|
571 |
}
|
|
572 |
|
|
573 |
/* Indicate that the scheduler is currently busy */
|
|
574 |
pTxnQ->bSchedulerBusy = TI_TRUE;
|
|
575 |
|
|
576 |
CONTEXT_LEAVE_CRITICAL_SECTION (pTxnQ->hContext);
|
|
577 |
|
|
578 |
bFirstIteration = TI_TRUE;
|
|
579 |
|
|
580 |
/*
|
|
581 |
* Run the scheduler while it has work to do
|
|
582 |
*/
|
|
583 |
while (1)
|
|
584 |
{
|
|
585 |
/* If first scheduler iteration, save its return code to return the original Txn result */
|
|
586 |
if (bFirstIteration)
|
|
587 |
{
|
|
588 |
eStatus = txnQ_Scheduler (pTxnQ, pInputTxn);
|
|
589 |
bFirstIteration = TI_FALSE;
|
|
590 |
}
|
|
591 |
/* This is for handling pending calls when the scheduler was busy (see above) */
|
|
592 |
else
|
|
593 |
{
|
|
594 |
TRACE0(pTxnQ->hReport, REPORT_SEVERITY_INFORMATION, "txnQ_RunScheduler(): Handle pending scheduler call\n");
|
|
595 |
txnQ_Scheduler (pTxnQ, NULL);
|
|
596 |
}
|
|
597 |
|
|
598 |
CONTEXT_ENTER_CRITICAL_SECTION (pTxnQ->hContext);
|
|
599 |
|
|
600 |
/* If no pending calls, clear the busy flag and return the original caller Txn status */
|
|
601 |
if (!pTxnQ->bSchedulerPend)
|
|
602 |
{
|
|
603 |
pTxnQ->bSchedulerBusy = TI_FALSE;
|
|
604 |
CONTEXT_LEAVE_CRITICAL_SECTION (pTxnQ->hContext);
|
|
605 |
return eStatus;
|
|
606 |
}
|
|
607 |
pTxnQ->bSchedulerPend = TI_FALSE;
|
|
608 |
|
|
609 |
CONTEXT_LEAVE_CRITICAL_SECTION (pTxnQ->hContext);
|
|
610 |
}
|
|
611 |
}
|
|
612 |
|
|
613 |
|
|
614 |
/**
|
|
615 |
* \fn txnQ_Scheduler
|
|
616 |
* \brief Send queued transactions
|
|
617 |
*
|
|
618 |
* Issue transactions as long as they are available and the bus is not occupied.
|
|
619 |
* Call CBs of completed transactions, except completion of pInputTxn (covered by the return value).
|
|
620 |
* Note that this function is called from either internal or external (TxnDone) context.
|
|
621 |
* However, the txnQ_RunScheduler which calls it, prevents scheduler reentry.
|
|
622 |
*
|
|
623 |
* \note
|
|
624 |
* \param pTxnQ - The module's object
|
|
625 |
* \param pInputTxn - The transaction inserted in the current context (NULL if none)
|
|
626 |
* \return COMPLETE if pInputTxn completed in this context, PENDING if not, ERROR if failed
|
|
627 |
* \sa txnQ_RunScheduler
|
|
628 |
*/
|
|
629 |
static ETxnStatus txnQ_Scheduler (TTxnQObj *pTxnQ, TTxnStruct *pInputTxn)
|
|
630 |
{
|
|
631 |
ETxnStatus eInputTxnStatus;
|
|
632 |
|
|
633 |
/* Use as return value the status of the input transaction (PENDING unless sent and completed here) */
|
|
634 |
eInputTxnStatus = TXN_STATUS_PENDING;
|
|
635 |
|
|
636 |
/* if a previous transaction is in progress, return PENDING */
|
|
637 |
if (pTxnQ->pCurrTxn)
|
|
638 |
{
|
|
639 |
TRACE1(pTxnQ->hReport, REPORT_SEVERITY_INFORMATION, "txnQ_Scheduler(): pCurrTxn isn't null (0x%x) so exit\n", pTxnQ->pCurrTxn);
|
|
640 |
return TXN_STATUS_PENDING;
|
|
641 |
}
|
|
642 |
|
|
643 |
/* Loop while transactions are available and can be sent to bus driver */
|
|
644 |
while (1)
|
|
645 |
{
|
|
646 |
TTxnStruct *pSelectedTxn;
|
|
647 |
ETxnStatus eStatus;
|
|
648 |
|
|
649 |
/* Get next enabled transaction by priority. If none, exit loop. */
|
|
650 |
CONTEXT_ENTER_CRITICAL_SECTION (pTxnQ->hContext);
|
|
651 |
pSelectedTxn = txnQ_SelectTxn (pTxnQ);
|
|
652 |
CONTEXT_LEAVE_CRITICAL_SECTION (pTxnQ->hContext);
|
|
653 |
if (pSelectedTxn == NULL)
|
|
654 |
{
|
|
655 |
break;
|
|
656 |
}
|
|
657 |
|
|
658 |
/* Save transaction in case it will be async (to indicate that the bus driver is busy) */
|
|
659 |
pTxnQ->pCurrTxn = pSelectedTxn;
|
|
660 |
|
|
661 |
/* Send selected transaction to bus driver */
|
|
662 |
eStatus = busDrv_Transact (pTxnQ->hBusDrv, pSelectedTxn);
|
|
663 |
|
|
664 |
/* If we've just sent the input transaction, use the status as the return value */
|
|
665 |
if (pSelectedTxn == pInputTxn)
|
|
666 |
{
|
|
667 |
eInputTxnStatus = eStatus;
|
|
668 |
}
|
|
669 |
|
|
670 |
TRACE3(pTxnQ->hReport, REPORT_SEVERITY_INFORMATION, "txnQ_Scheduler(): Txn 0x%x sent, status = %d, eInputTxnStatus = %d\n", pSelectedTxn, eStatus, eInputTxnStatus);
|
|
671 |
|
|
672 |
/* If transaction completed */
|
|
673 |
if (eStatus != TXN_STATUS_PENDING)
|
|
674 |
{
|
|
675 |
pTxnQ->pCurrTxn = NULL;
|
|
676 |
|
|
677 |
/* If it's not the input transaction, enqueue it in TxnDone queue */
|
|
678 |
if (pSelectedTxn != pInputTxn)
|
|
679 |
{
|
|
680 |
TI_STATUS eStatus;
|
|
681 |
|
|
682 |
CONTEXT_ENTER_CRITICAL_SECTION (pTxnQ->hContext);
|
|
683 |
eStatus = que_Enqueue (pTxnQ->hTxnDoneQueue, (TI_HANDLE)pSelectedTxn);
|
|
684 |
if (eStatus != TI_OK)
|
|
685 |
{
|
|
686 |
TRACE3(pTxnQ->hReport, REPORT_SEVERITY_ERROR, "txnQ_Scheduler(): Enqueue failed, pTxn=0x%x, HwAddr=0x%x, Len0=%d\n", pSelectedTxn, pSelectedTxn->uHwAddr, pSelectedTxn->aLen[0]);
|
|
687 |
}
|
|
688 |
CONTEXT_LEAVE_CRITICAL_SECTION (pTxnQ->hContext);
|
|
689 |
}
|
|
690 |
}
|
|
691 |
|
|
692 |
/* If pending Exit loop! */
|
|
693 |
else
|
|
694 |
{
|
|
695 |
break;
|
|
696 |
}
|
|
697 |
}
|
|
698 |
|
|
699 |
/* Dequeue completed transactions and call their functional driver CB */
|
|
700 |
/* Note that it's the functional driver CB and not the specific CB in the Txn! */
|
|
701 |
while (1)
|
|
702 |
{
|
|
703 |
TTxnStruct *pCompletedTxn;
|
|
704 |
TI_UINT32 uFuncId;
|
|
705 |
TTxnQueueDoneCb fTxnQueueDoneCb;
|
|
706 |
TI_HANDLE hCbHandle;
|
|
707 |
|
|
708 |
CONTEXT_ENTER_CRITICAL_SECTION (pTxnQ->hContext);
|
|
709 |
pCompletedTxn = (TTxnStruct *) que_Dequeue (pTxnQ->hTxnDoneQueue);
|
|
710 |
CONTEXT_LEAVE_CRITICAL_SECTION (pTxnQ->hContext);
|
|
711 |
if (pCompletedTxn == NULL)
|
|
712 |
{
|
|
713 |
/* Return the status of the input transaction (PENDING unless sent and completed here) */
|
|
714 |
return eInputTxnStatus;
|
|
715 |
}
|
|
716 |
|
|
717 |
TRACE1(pTxnQ->hReport, REPORT_SEVERITY_INFORMATION, "txnQ_Scheduler(): Calling TxnDone for Txn 0x%x\n", pCompletedTxn);
|
|
718 |
|
|
719 |
uFuncId = TXN_PARAM_GET_FUNC_ID(pCompletedTxn);
|
|
720 |
fTxnQueueDoneCb = pTxnQ->aFuncInfo[uFuncId].fTxnQueueDoneCb;
|
|
721 |
hCbHandle = pTxnQ->aFuncInfo[uFuncId].hCbHandle;
|
|
722 |
|
|
723 |
fTxnQueueDoneCb (hCbHandle, pCompletedTxn);
|
|
724 |
}
|
|
725 |
}
|
|
726 |
|
|
727 |
|
|
728 |
/**
|
|
729 |
* \fn txnQ_SelectTxn
|
|
730 |
* \brief Select transaction to send
|
|
731 |
*
|
|
732 |
* Called from txnQ_RunScheduler() which is protected in critical section.
|
|
733 |
* Select the next enabled transaction by priority.
|
|
734 |
*
|
|
735 |
* \note
|
|
736 |
* \param pTxnQ - The module's object
|
|
737 |
* \return The selected transaction to send (NULL if none available)
|
|
738 |
* \sa
|
|
739 |
*/
|
|
740 |
static TTxnStruct *txnQ_SelectTxn (TTxnQObj *pTxnQ)
|
|
741 |
{
|
|
742 |
TTxnStruct *pSelectedTxn;
|
|
743 |
TI_UINT32 uFunc;
|
|
744 |
TI_UINT32 uPrio;
|
|
745 |
|
|
746 |
#ifdef TI_DBG
|
|
747 |
/* If within Tx aggregation, dequeue Txn from same queue, and if not NULL return it */
|
|
748 |
if (pTxnQ->pAggregQueue)
|
|
749 |
{
|
|
750 |
pSelectedTxn = (TTxnStruct *) que_Dequeue (pTxnQ->pAggregQueue);
|
|
751 |
if (pSelectedTxn != NULL)
|
|
752 |
{
|
|
753 |
/* If aggregation ended, reset the aggregation-queue pointer */
|
|
754 |
if (TXN_PARAM_GET_AGGREGATE(pSelectedTxn) == TXN_AGGREGATE_OFF)
|
|
755 |
{
|
|
756 |
if ((TXN_PARAM_GET_FIXED_ADDR(pSelectedTxn) != TXN_FIXED_ADDR) ||
|
|
757 |
(TXN_PARAM_GET_DIRECTION(pSelectedTxn) != TXN_DIRECTION_WRITE))
|
|
758 |
{
|
|
759 |
TRACE2(pTxnQ->hReport, REPORT_SEVERITY_ERROR, "txnQ_SelectTxn: Mixed transaction during aggregation, HwAddr=0x%x, TxnParams=0x%x\n", pSelectedTxn->uHwAddr, pSelectedTxn->uTxnParams);
|
|
760 |
}
|
|
761 |
pTxnQ->pAggregQueue = NULL;
|
|
762 |
}
|
|
763 |
return pSelectedTxn;
|
|
764 |
}
|
|
765 |
return NULL;
|
|
766 |
}
|
|
767 |
#endif
|
|
768 |
|
|
769 |
/* For all functions, if single-step Txn waiting, return it (sent even if function is stopped) */
|
|
770 |
for (uFunc = pTxnQ->uMinFuncId; uFunc <= pTxnQ->uMaxFuncId; uFunc++)
|
|
771 |
{
|
|
772 |
pSelectedTxn = pTxnQ->aFuncInfo[uFunc].pSingleStep;
|
|
773 |
if (pSelectedTxn != NULL)
|
|
774 |
{
|
|
775 |
pTxnQ->aFuncInfo[uFunc].pSingleStep = NULL;
|
|
776 |
return pSelectedTxn;
|
|
777 |
}
|
|
778 |
}
|
|
779 |
|
|
780 |
/* For all priorities from high to low */
|
|
781 |
for (uPrio = 0; uPrio < MAX_PRIORITY; uPrio++)
|
|
782 |
{
|
|
783 |
/* For all functions */
|
|
784 |
for (uFunc = pTxnQ->uMinFuncId; uFunc <= pTxnQ->uMaxFuncId; uFunc++)
|
|
785 |
{
|
|
786 |
/* If function running and uses this priority */
|
|
787 |
if (pTxnQ->aFuncInfo[uFunc].eState == FUNC_STATE_RUNNING &&
|
|
788 |
pTxnQ->aFuncInfo[uFunc].uNumPrios > uPrio)
|
|
789 |
{
|
|
790 |
/* Dequeue Txn from current func and priority queue, and if not NULL return it */
|
|
791 |
pSelectedTxn = (TTxnStruct *) que_Dequeue (pTxnQ->aTxnQueues[uFunc][uPrio]);
|
|
792 |
if (pSelectedTxn != NULL)
|
|
793 |
{
|
|
794 |
#ifdef TI_DBG
|
|
795 |
/* If aggregation begins, save the aggregation-queue pointer to ensure continuity */
|
|
796 |
if (TXN_PARAM_GET_AGGREGATE(pSelectedTxn) == TXN_AGGREGATE_ON)
|
|
797 |
{
|
|
798 |
pTxnQ->pAggregQueue = pTxnQ->aTxnQueues[uFunc][uPrio];
|
|
799 |
}
|
|
800 |
#endif
|
|
801 |
return pSelectedTxn;
|
|
802 |
}
|
|
803 |
}
|
|
804 |
}
|
|
805 |
}
|
|
806 |
|
|
807 |
/* If no transaction was selected, return NULL */
|
|
808 |
return NULL;
|
|
809 |
}
|
|
810 |
|
|
811 |
|
|
812 |
void txnQ_ClearQueues (TI_HANDLE hTxnQ, TI_UINT32 uFuncId)
|
|
813 |
{
|
|
814 |
TTxnQObj *pTxnQ = (TTxnQObj*)hTxnQ;
|
|
815 |
TTxnStruct *pTxn;
|
|
816 |
TI_UINT32 uPrio;
|
|
817 |
|
|
818 |
CONTEXT_ENTER_CRITICAL_SECTION (pTxnQ->hContext);
|
|
819 |
|
|
820 |
pTxnQ->aFuncInfo[uFuncId].pSingleStep = NULL;
|
|
821 |
|
|
822 |
/* For all function priorities */
|
|
823 |
for (uPrio = 0; uPrio < pTxnQ->aFuncInfo[uFuncId].uNumPrios; uPrio++)
|
|
824 |
{
|
|
825 |
while (1)
|
|
826 |
{
|
|
827 |
/* Dequeue Txn from current priority queue */
|
|
828 |
pTxn = (TTxnStruct *) que_Dequeue (pTxnQ->aTxnQueues[uFuncId][uPrio]);
|
|
829 |
|
|
830 |
/* If NULL Txn (queue empty), exit while loop */
|
|
831 |
if (pTxn == NULL)
|
|
832 |
{
|
|
833 |
break;
|
|
834 |
}
|
|
835 |
|
|
836 |
/*
|
|
837 |
* Drop on Restart
|
|
838 |
* do not call fTxnQueueDoneCb (hCbHandle, pTxn) callback
|
|
839 |
*/
|
|
840 |
}
|
|
841 |
}
|
|
842 |
|
|
843 |
/* Clear state - for restart (doesn't call txnQ_Open) */
|
|
844 |
pTxnQ->aFuncInfo[uFuncId].eState = FUNC_STATE_RUNNING;
|
|
845 |
|
|
846 |
CONTEXT_LEAVE_CRITICAL_SECTION (pTxnQ->hContext);
|
|
847 |
}
|
|
848 |
|
|
849 |
#ifdef TI_DBG
|
|
850 |
void txnQ_PrintQueues (TI_HANDLE hTxnQ)
|
|
851 |
{
|
|
852 |
TTxnQObj *pTxnQ = (TTxnQObj*)hTxnQ;
|
|
853 |
|
|
854 |
WLAN_OS_REPORT(("Print TXN queues\n"));
|
|
855 |
WLAN_OS_REPORT(("================\n"));
|
|
856 |
que_Print(pTxnQ->aTxnQueues[TXN_FUNC_ID_WLAN][TXN_LOW_PRIORITY]);
|
|
857 |
que_Print(pTxnQ->aTxnQueues[TXN_FUNC_ID_WLAN][TXN_HIGH_PRIORITY]);
|
|
858 |
}
|
|
859 |
#endif /* TI_DBG */
|
|
860 |
|
|
861 |
|