rt-thread/bsp/frdm-k64f/device/MK64F12/fsl_pdb.c

142 lines
5.0 KiB
C

/*
* Copyright (c) 2015, Freescale Semiconductor, Inc.
* Copyright 2016-2017 NXP
*
* 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 the copyright holder 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 "fsl_pdb.h"
/*******************************************************************************
* Prototypes
******************************************************************************/
/*!
* @brief Get instance number for PDB module.
*
* @param base PDB peripheral base address
*/
static uint32_t PDB_GetInstance(PDB_Type *base);
/*******************************************************************************
* Variables
******************************************************************************/
/*! @brief Pointers to PDB bases for each instance. */
static PDB_Type *const s_pdbBases[] = PDB_BASE_PTRS;
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
/*! @brief Pointers to PDB clocks for each instance. */
static const clock_ip_name_t s_pdbClocks[] = PDB_CLOCKS;
#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
/*******************************************************************************
* Codes
******************************************************************************/
static uint32_t PDB_GetInstance(PDB_Type *base)
{
uint32_t instance;
/* Find the instance index from base address mappings. */
for (instance = 0; instance < ARRAY_SIZE(s_pdbBases); instance++)
{
if (s_pdbBases[instance] == base)
{
break;
}
}
assert(instance < ARRAY_SIZE(s_pdbBases));
return instance;
}
void PDB_Init(PDB_Type *base, const pdb_config_t *config)
{
assert(NULL != config);
uint32_t tmp32;
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
/* Enable the clock. */
CLOCK_EnableClock(s_pdbClocks[PDB_GetInstance(base)]);
#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
/* Configure. */
/* PDBx_SC. */
tmp32 = base->SC &
~(PDB_SC_LDMOD_MASK | PDB_SC_PRESCALER_MASK | PDB_SC_TRGSEL_MASK | PDB_SC_MULT_MASK | PDB_SC_CONT_MASK);
tmp32 |= PDB_SC_LDMOD(config->loadValueMode) | PDB_SC_PRESCALER(config->prescalerDivider) |
PDB_SC_TRGSEL(config->triggerInputSource) | PDB_SC_MULT(config->dividerMultiplicationFactor);
if (config->enableContinuousMode)
{
tmp32 |= PDB_SC_CONT_MASK;
}
base->SC = tmp32;
PDB_Enable(base, true); /* Enable the PDB module. */
}
void PDB_Deinit(PDB_Type *base)
{
PDB_Enable(base, false); /* Disable the PDB module. */
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
/* Disable the clock. */
CLOCK_DisableClock(s_pdbClocks[PDB_GetInstance(base)]);
#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
}
void PDB_GetDefaultConfig(pdb_config_t *config)
{
assert(NULL != config);
config->loadValueMode = kPDB_LoadValueImmediately;
config->prescalerDivider = kPDB_PrescalerDivider1;
config->dividerMultiplicationFactor = kPDB_DividerMultiplicationFactor1;
config->triggerInputSource = kPDB_TriggerSoftware;
config->enableContinuousMode = false;
}
#if defined(FSL_FEATURE_PDB_HAS_DAC) && FSL_FEATURE_PDB_HAS_DAC
void PDB_SetDACTriggerConfig(PDB_Type *base, uint32_t channel, pdb_dac_trigger_config_t *config)
{
assert(channel < PDB_INTC_COUNT);
assert(NULL != config);
uint32_t tmp32 = 0U;
/* PDBx_DACINTC. */
if (config->enableExternalTriggerInput)
{
tmp32 |= PDB_INTC_EXT_MASK;
}
if (config->enableIntervalTrigger)
{
tmp32 |= PDB_INTC_TOE_MASK;
}
base->DAC[channel].INTC = tmp32;
}
#endif /* FSL_FEATURE_PDB_HAS_DAC */