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/*
* Copyright (c) 2013 - 2014, Freescale Semiconductor, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* o 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.
*
* o Neither the name of Freescale Semiconductor, Inc. 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 HOLDER 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.
*/
#include <assert.h>
#include <string.h>
#include "fsl_xbar_driver.h"
#include "fsl_interrupt_manager.h"
#include "fsl_clock_manager.h"
#if FSL_FEATURE_SOC_XBAR_COUNT
/*! @brief Pointers to internal state structure for XBAR module. */
static xbar_state_t * volatile g_xbarState;
/*FUNCTION*********************************************************************
*
* Function Name : XBAR_DRV_Init
* Description : Initialize the XBAR module to the reset state. This API
* should be called before any operation of the XBAR module.
*
*END*************************************************************************/
xbar_status_t XBAR_DRV_Init(xbar_state_t * xbarStatePtr)
{
XBARA_Type * xbara_base = g_xbaraBase[0];
g_xbarState = xbarStatePtr;
/* Clear the state structure. */
memset(xbarStatePtr, 0, sizeof(xbar_state_t));
CLOCK_SYS_EnableXbarClock(XBARA_MODULE);
XBARA_HAL_Init(xbara_base);
#if !defined(FSL_FEATURE_XBAR_HAS_SINGLE_MODULE)
XBARB_Type * xbarb_base = g_xbarbBase[0];
CLOCK_SYS_EnableXbarClock(XBARB_MODULE);
XBARB_HAL_Init(xbarb_base);
#endif /* FSL_FEATURE_XBAR_HAS_SINGLE_MODULE */
/* Enable XBAR interrupt on NVIC level. */
INT_SYS_EnableIRQ(g_xbarIrqId[XBARA_MODULE]);
return kStatus_XBAR_Success;
}
/*FUNCTION*********************************************************************
*
* Function Name : XBAR_DRV_Control_Config
* Description : This function configures the XBAR module control register
* of selected XBAR_OUT output. Control fields provide the ability to perform
* edge detection on the corresponding XBAR_OUT output. Edge detection in turn
* can optionally be used to trigger an interrupt or DMA request. The intention
* is that, by detecting specified edges on signals propagating through the
* Crossbar, interrupts or DMA requests can be triggered to perform data
* transfers to or from other system components. DENn and IENn should not be set
* to 1 at the same time for the same output XBAR_OUT[n].
*
*END*************************************************************************/
xbar_status_t XBAR_DRV_ConfigOutControl(uint32_t outIndex, const xbar_control_config_t * controlConfigPtr)
{
XBARA_Type * xbara_base = g_xbaraBase[0];
/* Set active edge for edge detection. */
XBARA_HAL_SetOutActiveEdge(xbara_base, outIndex, controlConfigPtr->activeEdge);
/* Set interrupt or DMA function. */
if(controlConfigPtr->intDmaReq == kXbarReqIen)
{
XBARA_HAL_SetDMAOutCmd(xbara_base, outIndex, false);
XBARA_HAL_SetIntOutCmd(xbara_base, outIndex, true);
}
else if(controlConfigPtr->intDmaReq == kXbarReqDen)
{
XBARA_HAL_SetIntOutCmd(xbara_base, outIndex, false);
XBARA_HAL_SetDMAOutCmd(xbara_base, outIndex, true);
}
else
{
XBARA_HAL_SetIntOutCmd(xbara_base, outIndex, false);
XBARA_HAL_SetDMAOutCmd(xbara_base, outIndex, false);
}
return kStatus_XBAR_Success;
}
/*FUNCTION*********************************************************************
*
* Function Name : XBAR_DRV_Deinit
* Description : De-initialize the XBAR module. It shuts down XBAR module
* clock to reduce the power consumption and resets XBAR's registers to a known
* state.
*
*END*************************************************************************/
void XBAR_DRV_Deinit(void)
{
XBARA_Type * xbara_base = g_xbaraBase[0];
/* Cleared state pointer. */
g_xbarState = NULL;
/* Disable XBAR interrupt on NVIC level. */
INT_SYS_DisableIRQ(g_xbarIrqId[0]);
/*Initialize module to reset state - clears all configurations*/
XBARA_HAL_Init(xbara_base);
/* Disable XBARB module clock */
CLOCK_SYS_DisableXbarClock(XBARA_MODULE);
#if !defined(FSL_FEATURE_XBAR_HAS_SINGLE_MODULE)
XBARB_Type * xbarb_base = g_xbarbBase[0];
/*Initialize module to reset state - clears all configurations*/
XBARB_HAL_Init(xbarb_base);
/* Disable XBARB module clock */
CLOCK_SYS_DisableXbarClock(XBARB_MODULE);
#endif /* FSL_FEATURE_XBAR_HAS_SINGLE_MODULE */
}
/*FUNCTION*********************************************************************
*
* Function Name : XBAR_DRV_ConfigSignalConnection
* Description : This function configures connections between XBAR_IN[*]
* and XBAR_OUT[*] signals.
*
*END*************************************************************************/
xbar_status_t XBAR_DRV_ConfigSignalConnection(xbar_input_signal_t input, xbar_output_signal_t output)
{
if(((uint32_t)input & (1U<<8U)) && ((uint32_t)output & (1U<<8U)))
{
XBARA_Type * xbara_base = g_xbaraBase[0];
uint32_t outputA = ((uint32_t)output & ~(1U<<8U));
uint32_t inputA = ((uint32_t)input & ~(1U<<8U));
XBARA_HAL_SetOutSel(xbara_base, outputA, inputA);
return kStatus_XBAR_Success;
}
#if !defined(FSL_FEATURE_XBAR_HAS_SINGLE_MODULE)
else if(((uint32_t)input & (1U<<9U)) && ((uint32_t)output & (1U<<9U)))
{
XBARB_Type * xbarb_base = g_xbarbBase[0];
uint32_t outputB = ((uint32_t)output & ~(1U<<9U));
uint32_t inputB = ((uint32_t)input & ~(1U<<9U));
XBARB_HAL_SetOutSel(xbarb_base, outputB, inputB);
return kStatus_XBAR_Success;
}
#endif /* FSL_FEATURE_XBAR_HAS_SINGLE_MODULE */
else
{
return kStatus_XBAR_InvalidArgument;
}
}
/*FUNCTION*********************************************************************
*
* Function Name : XBAR_DRV_GetEdgeDetectionStatus
* Description : Get the active edge detection status of selected output.
* If the active edge occurs, the return value will be asserted. When interrupt
* or DMA functionality is enabled for XBAR_OUTx, this field is 1 when the
* interrupt or DMA request is asserted and 0 when the interrupt or DMA request
* has been cleared.
*
*END*************************************************************************/
bool XBAR_DRV_GetEdgeDetectionStatus(uint32_t outIndex)
{
XBARA_Type * xbara_base = g_xbaraBase[0];
return XBARA_HAL_GetEdgeDetectionStatus(xbara_base, outIndex);
}
/*FUNCTION*********************************************************************
*
* Function Name : XBAR_DRV_ClearEdgeDetectionStatus
* Description : Clear the edge detection status of selected output.
* This field is cleared by this function or by DMA_ACKx reception when DENx
* is set.
*
*END*************************************************************************/
xbar_status_t XBAR_DRV_ClearEdgeDetectionStatus(uint32_t outIndex)
{
XBARA_Type * xbara_base = g_xbaraBase[0];
XBARA_HAL_ClearEdgeDetectionStatus(xbara_base, outIndex);
return kStatus_XBAR_Success;
}
/*FUNCTION*********************************************************************
*
* Function Name : XBAR_DRV_InstallCallback
* Description : Install the user-defined callback in XBAR module.
* When an XBAR interrupt request is served, the callback will be executed
* inside the ISR.
*
*END*************************************************************************/
xbar_status_t XBAR_DRV_InstallCallback(uint32_t outIndex, xbar_callback_t userCallback, void * callbackParam)
{
if(outIndex >= FSL_FEATURE_XBARA_INTERRUPT_COUNT)
{
return kStatus_XBAR_InvalidArgument;
}
xbar_state_t * xbarState = (xbar_state_t *)g_xbarState;
xbarState->userCallbackFunct[outIndex] = userCallback;
xbarState->xbarCallbackParam[outIndex] = callbackParam;
return kStatus_XBAR_Success;
}
/*FUNCTION**********************************************************************
*
* Function Name : XBAR_DRV_IRQHandler
* Description : Driver-defined ISR in XBAR module.
* This is not a public API as it is called whenever an interrupt occurs.
*
*END**************************************************************************/
void XBAR_DRV_IRQHandler(void)
{
XBARA_Type * xbara_base = g_xbaraBase[0];
xbar_state_t* stateOutput = g_xbarState;
uint32_t outIndex;
for(outIndex = 0; outIndex < FSL_FEATURE_XBARA_INTERRUPT_COUNT; outIndex++)
{
if(XBARA_HAL_GetIntOutCmd(xbara_base, outIndex))
{
if(XBARA_HAL_GetEdgeDetectionStatus(xbara_base, outIndex))
{
/* Execute the user-defined callback function. */
if (stateOutput->userCallbackFunct[outIndex])
{
(*(stateOutput->userCallbackFunct[outIndex]))(stateOutput->xbarCallbackParam[outIndex]);
}
/* Make sure the flags are cleared. */
XBARA_HAL_ClearEdgeDetectionStatus(xbara_base, outIndex);
}
}
}
}
#endif
/*******************************************************************************
* EOF
******************************************************************************/
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