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/*
* Copyright (c) 2017-present, Texas Instruments Incorporated
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Texas Instruments Incorporated nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* ======== EventCombinerP_tirtos.c ========
*/
#ifdef _TMS320C6X
#include <ti/osal/osal.h>
#include <ti/osal/EventCombinerP.h>
#include <stdint.h>
#include <stdbool.h>
#include <stdlib.h>
#include <xdc/std.h>
#include <xdc/runtime/Error.h>
#include <xdc/runtime/Memory.h>
#include <ti/osal/src/tirtos/tirtos_config.h>
#include <ti/sysbios/family/c66/tci66xx/CpIntc.h>
#include <ti/sysbios/family/c64p/EventCombiner.h>
#include <ti/sysbios/family/c64p/Hwi.h>
#ifdef __cplusplus
extern "C" {
#endif
/* This is the number of c6x interrupts [0-15] */
#define OSAL_ECM_NUM_INTERRUPTS (Hwi_NUM_INTERRUPTS)
/**************************************************************
Description: Returns the Hwi Handle associated with the event group.
It returns NULL_PTR if the Event combiner is not registered
with an interrupt vector (0-15)
Argument: The Event Combiner group Number [0-3]
Returns: The HwiHandle corresponding to the group number.
NULL_PTR if it doesnt registered yet.
*******************************************************************/
HwiP_Handle EventCombinerP_getHwi(uint32_t groupNum) {
HwiP_Handle handle=NULL_PTR;
int32_t event,i;
for(i=0;i<OSAL_ECM_NUM_INTERRUPTS;i++) {
/* Find out the event associated with the interrupt vector number */
event=Hwi_getEventId((uint32_t)i);
if((uint32_t)event==groupNum) {
/* If the associated event is the ECM group queried (0-3),
* return the handle */
handle=(HwiP_Handle)Hwi_getHandle((uint32_t)i);
break;
}
}
return(handle);
}
/**************************************************************
Description: Returns the interrupt vector id corresponding to a
event combiner group number [0-3)
Argument: The Event Combiner group Number [0-3]
Returns: The interrupt vector id corresponding to a groupNum.
-1 if the event combiner is not registered
*******************************************************************/
int32_t EventCombinerP_getIntNum(int32_t groupNum) {
int32_t event,i,intNum=-1;
for(i=0;i<OSAL_ECM_NUM_INTERRUPTS;i++) {
/* Find out the event associated with the interrupt vector number */
event=Hwi_getEventId((uint32_t)i);
if(event==groupNum) {
/* If the associated event is the ECM group (0-3),
* find out the event associated with the interrupt vector number */
intNum=i;
break;
}
}
return(intNum);
}
/**************************************************************
Description: Register an event combiner interrupt
Argument: groupNum: The group number (0-3).
intNum: The interrupt vector id to register
the event combiner to.
Returns: OSAL_EVTCOMBINE_GROUPREG_SUCCESS if allocated well.
OSAL_EVTCOMBINE_ERR_GROUPREG_REGISTER_ERR if error.
*******************************************************************/
int32_t EventCombinerP_SingleRegisterInt(int32_t groupNum, int32_t intNum)
{
int32_t ret=OSAL_EVTCOMBINE_GROUPREG_SUCCESS;
HwiP_Handle hwiHandle=NULL_PTR;
HwiP_Params hwiInputParams;
if(EventCombinerP_getHwi((uint32_t)groupNum)!=NULL_PTR) {
/* Already registered, nothing to do */
ret = OSAL_EVTCOMBINE_GROUPREG_SUCCESS;
}
else
{
HwiP_Params_init(&hwiInputParams);
hwiInputParams.name = (char *) NULL_PTR;
hwiInputParams.priority = 0x20U;
hwiInputParams.arg = (uintptr_t)groupNum;
hwiInputParams.evtId = (uint32_t)groupNum;
if( (intNum>0) && (intNum <OSAL_ECM_NUM_INTERRUPTS) ) {
hwiHandle = HwiP_create(intNum,&EventCombiner_dispatch, &hwiInputParams);
if(hwiHandle==NULL_PTR) {
ret= OSAL_EVTCOMBINE_ERR_GROUPREG_REGISTER_ERR;
}
} else {
ret = OSAL_EVTCOMBINE_ERR_GROUPREG_INVALID_INTNUM;
}
}
return ret;
}
/**************************************************************
Description: Register all the event combiner interrupts
Argument: intNum[]: The interrupt vector ids to register
the event combiner to
Returns: OSAL_EVTCOMBINE_GROUPREG_SUCCESS if
allocated well.
OSAL_EVTCOMBINE_ERR_GROUPREG_REGISTER_ERR if error.
*******************************************************************/
int32_t EventCombinerP_GroupRegisterInt(int32_t intNum[])
{
int32_t ret=OSAL_EVTCOMBINE_GROUPREG_SUCCESS,i;
for(i=0;i<4;i++) {
if((intNum[i]>0) && (intNum[i]<OSAL_ECM_NUM_INTERRUPTS)) {
ret=EventCombinerP_SingleRegisterInt(i,intNum[i]);
if(ret!=OSAL_EVTCOMBINE_GROUPREG_SUCCESS) {
break;
}
}
}
return ret;
}
/**************************************************************************
Description: Disable a particular event Number inside the Event Combiner
Argument: eventNum: The event number(4-127) to disable inside
the event combiner
Returns: OSAL_EVTCOMBINE_GROUPREG_SUCCESS
****************************************************************************/
int32_t EventCombinerP_disableEvent(uint32_t eventNum)
{
EventCombiner_disableEvent(eventNum);
return OSAL_EVTCOMBINE_GROUPREG_SUCCESS;
}
/**************************************************************************
Description: Enable a particular event Number inside the Event Combiner
Argument: eventNum: The event number(4-127) to enable inside
the event combiner
Returns: OSAL_EVTCOMBINE_GROUPREG_SUCCESS
****************************************************************************/
int32_t EventCombinerP_enableEvent(uint32_t eventNum)
{
EventCombiner_enableEvent(eventNum);
return OSAL_EVTCOMBINE_GROUPREG_SUCCESS;
}
/**************************************************************************
Description: Plugs a event's(4-127) to the EventCombiner's dispatcher
Arguments: eventId: The event number(4-127)
eventIsrRoutine: The event's ISR routine
unmask: TRUE/FALSE: Mask/Unmask the event combiner flag
Returns: OSAL_EVTCOMBINE_GROUPREG_SUCCESS
****************************************************************************/
int32_t EventCombinerP_dispatchPlug(uint32_t eventId, EventCombinerP_FuncPtr eventIsrRoutine,uintptr_t arg,bool unmask )
{
EventCombiner_dispatchPlug (eventId,(EventCombiner_FuncPtr)(eventIsrRoutine),arg,(uint16_t)((unmask==(bool)true)?1U:0U));
return OSAL_EVTCOMBINE_GROUPREG_SUCCESS;
}
#ifdef __cplusplus
}
#endif
#endif /* #ifdef _TMS320C6X */
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