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Diffstat (limited to 'drivers/include/fsl_pdb.h')
| -rw-r--r-- | drivers/include/fsl_pdb.h | 576 |
1 files changed, 576 insertions, 0 deletions
diff --git a/drivers/include/fsl_pdb.h b/drivers/include/fsl_pdb.h new file mode 100644 index 0000000..3dec946 --- /dev/null +++ b/drivers/include/fsl_pdb.h @@ -0,0 +1,576 @@ +/* + * 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. + */ + +#ifndef _FSL_PDB_H_ +#define _FSL_PDB_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup pdb + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief PDB driver version 2.0.1. */ +#define FSL_PDB_DRIVER_VERSION (MAKE_VERSION(2, 0, 1)) +/*@}*/ + +/*! + * @brief PDB flags. + */ +enum _pdb_status_flags +{ + kPDB_LoadOKFlag = PDB_SC_LDOK_MASK, /*!< This flag is automatically cleared when the values in buffers are + loaded into the internal registers after the LDOK bit is set or the + PDBEN is cleared. */ + kPDB_DelayEventFlag = PDB_SC_PDBIF_MASK, /*!< PDB timer delay event flag. */ +}; + +/*! + * @brief PDB ADC PreTrigger channel flags. + */ +enum _pdb_adc_pretrigger_flags +{ + /* PDB PreTrigger channel match flags. */ + kPDB_ADCPreTriggerChannel0Flag = PDB_S_CF(1U << 0), /*!< Pre-trigger 0 flag. */ + kPDB_ADCPreTriggerChannel1Flag = PDB_S_CF(1U << 1), /*!< Pre-trigger 1 flag. */ +#if (PDB_DLY_COUNT2 > 2) + kPDB_ADCPreTriggerChannel2Flag = PDB_S_CF(1U << 2), /*!< Pre-trigger 2 flag. */ + kPDB_ADCPreTriggerChannel3Flag = PDB_S_CF(1U << 3), /*!< Pre-trigger 3 flag. */ +#endif /* PDB_DLY_COUNT2 > 2 */ +#if (PDB_DLY_COUNT2 > 4) + kPDB_ADCPreTriggerChannel4Flag = PDB_S_CF(1U << 4), /*!< Pre-trigger 4 flag. */ + kPDB_ADCPreTriggerChannel5Flag = PDB_S_CF(1U << 5), /*!< Pre-trigger 5 flag. */ + kPDB_ADCPreTriggerChannel6Flag = PDB_S_CF(1U << 6), /*!< Pre-trigger 6 flag. */ + kPDB_ADCPreTriggerChannel7Flag = PDB_S_CF(1U << 7), /*!< Pre-trigger 7 flag. */ +#endif /* PDB_DLY_COUNT2 > 4 */ + + /* PDB PreTrigger channel error flags. */ + kPDB_ADCPreTriggerChannel0ErrorFlag = PDB_S_ERR(1U << 0), /*!< Pre-trigger 0 Error. */ + kPDB_ADCPreTriggerChannel1ErrorFlag = PDB_S_ERR(1U << 1), /*!< Pre-trigger 1 Error. */ +#if (PDB_DLY_COUNT2 > 2) + kPDB_ADCPreTriggerChannel2ErrorFlag = PDB_S_ERR(1U << 2), /*!< Pre-trigger 2 Error. */ + kPDB_ADCPreTriggerChannel3ErrorFlag = PDB_S_ERR(1U << 3), /*!< Pre-trigger 3 Error. */ +#endif /* PDB_DLY_COUNT2 > 2 */ +#if (PDB_DLY_COUNT2 > 4) + kPDB_ADCPreTriggerChannel4ErrorFlag = PDB_S_ERR(1U << 4), /*!< Pre-trigger 4 Error. */ + kPDB_ADCPreTriggerChannel5ErrorFlag = PDB_S_ERR(1U << 5), /*!< Pre-trigger 5 Error. */ + kPDB_ADCPreTriggerChannel6ErrorFlag = PDB_S_ERR(1U << 6), /*!< Pre-trigger 6 Error. */ + kPDB_ADCPreTriggerChannel7ErrorFlag = PDB_S_ERR(1U << 7), /*!< Pre-trigger 7 Error. */ +#endif /* PDB_DLY_COUNT2 > 4 */ +}; + +/*! + * @brief PDB buffer interrupts. + */ +enum _pdb_interrupt_enable +{ + kPDB_SequenceErrorInterruptEnable = PDB_SC_PDBEIE_MASK, /*!< PDB sequence error interrupt enable. */ + kPDB_DelayInterruptEnable = PDB_SC_PDBIE_MASK, /*!< PDB delay interrupt enable. */ +}; + +/*! + * @brief PDB load value mode. + * + * Selects the mode to load the internal values after doing the load operation (write 1 to PDBx_SC[LDOK]). + * These values are for the following operations. + * - PDB counter (PDBx_MOD, PDBx_IDLY) + * - ADC trigger (PDBx_CHnDLYm) + * - DAC trigger (PDBx_DACINTx) + * - CMP trigger (PDBx_POyDLY) + */ +typedef enum _pdb_load_value_mode +{ + kPDB_LoadValueImmediately = 0U, /*!< Load immediately after 1 is written to LDOK. */ + kPDB_LoadValueOnCounterOverflow = 1U, /*!< Load when the PDB counter overflows (reaches the MOD + register value). */ + kPDB_LoadValueOnTriggerInput = 2U, /*!< Load a trigger input event is detected. */ + kPDB_LoadValueOnCounterOverflowOrTriggerInput = 3U, /*!< Load either when the PDB counter overflows or a trigger + input is detected. */ +} pdb_load_value_mode_t; + +/*! + * @brief Prescaler divider. + * + * Counting uses the peripheral clock divided by multiplication factor selected by times of MULT. + */ +typedef enum _pdb_prescaler_divider +{ + kPDB_PrescalerDivider1 = 0U, /*!< Divider x1. */ + kPDB_PrescalerDivider2 = 1U, /*!< Divider x2. */ + kPDB_PrescalerDivider4 = 2U, /*!< Divider x4. */ + kPDB_PrescalerDivider8 = 3U, /*!< Divider x8. */ + kPDB_PrescalerDivider16 = 4U, /*!< Divider x16. */ + kPDB_PrescalerDivider32 = 5U, /*!< Divider x32. */ + kPDB_PrescalerDivider64 = 6U, /*!< Divider x64. */ + kPDB_PrescalerDivider128 = 7U, /*!< Divider x128. */ +} pdb_prescaler_divider_t; + +/*! + * @brief Multiplication factor select for prescaler. + * + * Selects the multiplication factor of the prescaler divider for the counter clock. + */ +typedef enum _pdb_divider_multiplication_factor +{ + kPDB_DividerMultiplicationFactor1 = 0U, /*!< Multiplication factor is 1. */ + kPDB_DividerMultiplicationFactor10 = 1U, /*!< Multiplication factor is 10. */ + kPDB_DividerMultiplicationFactor20 = 2U, /*!< Multiplication factor is 20. */ + kPDB_DividerMultiplicationFactor40 = 3U, /*!< Multiplication factor is 40. */ +} pdb_divider_multiplication_factor_t; + +/*! + * @brief Trigger input source + * + * Selects the trigger input source for the PDB. The trigger input source can be internal or external (EXTRG pin), or + * the software trigger. See chip configuration details for the actual PDB input trigger connections. + */ +typedef enum _pdb_trigger_input_source +{ + kPDB_TriggerInput0 = 0U, /*!< Trigger-In 0. */ + kPDB_TriggerInput1 = 1U, /*!< Trigger-In 1. */ + kPDB_TriggerInput2 = 2U, /*!< Trigger-In 2. */ + kPDB_TriggerInput3 = 3U, /*!< Trigger-In 3. */ + kPDB_TriggerInput4 = 4U, /*!< Trigger-In 4. */ + kPDB_TriggerInput5 = 5U, /*!< Trigger-In 5. */ + kPDB_TriggerInput6 = 6U, /*!< Trigger-In 6. */ + kPDB_TriggerInput7 = 7U, /*!< Trigger-In 7. */ + kPDB_TriggerInput8 = 8U, /*!< Trigger-In 8. */ + kPDB_TriggerInput9 = 9U, /*!< Trigger-In 9. */ + kPDB_TriggerInput10 = 10U, /*!< Trigger-In 10. */ + kPDB_TriggerInput11 = 11U, /*!< Trigger-In 11. */ + kPDB_TriggerInput12 = 12U, /*!< Trigger-In 12. */ + kPDB_TriggerInput13 = 13U, /*!< Trigger-In 13. */ + kPDB_TriggerInput14 = 14U, /*!< Trigger-In 14. */ + kPDB_TriggerSoftware = 15U, /*!< Trigger-In 15, software trigger. */ +} pdb_trigger_input_source_t; + +/*! + * @brief PDB module configuration. + */ +typedef struct _pdb_config +{ + pdb_load_value_mode_t loadValueMode; /*!< Select the load value mode. */ + pdb_prescaler_divider_t prescalerDivider; /*!< Select the prescaler divider. */ + pdb_divider_multiplication_factor_t dividerMultiplicationFactor; /*!< Multiplication factor select for prescaler. */ + pdb_trigger_input_source_t triggerInputSource; /*!< Select the trigger input source. */ + bool enableContinuousMode; /*!< Enable the PDB operation in Continuous mode.*/ +} pdb_config_t; + +/*! + * @brief PDB ADC Pre-trigger configuration. + */ +typedef struct _pdb_adc_pretrigger_config +{ + uint32_t enablePreTriggerMask; /*!< PDB Channel Pre-trigger Enable. */ + uint32_t enableOutputMask; /*!< PDB Channel Pre-trigger Output Select. + PDB channel's corresponding pre-trigger asserts when the counter + reaches the channel delay register. */ + uint32_t enableBackToBackOperationMask; /*!< PDB Channel pre-trigger Back-to-Back Operation Enable. + Back-to-back operation enables the ADC conversions complete to trigger + the next PDB channel pre-trigger and trigger output, so that the ADC + conversions can be triggered on next set of configuration and results + registers.*/ +} pdb_adc_pretrigger_config_t; + +/*! + * @brief PDB DAC trigger configuration. + */ +typedef struct _pdb_dac_trigger_config +{ + bool enableExternalTriggerInput; /*!< Enables the external trigger for DAC interval counter. */ + bool enableIntervalTrigger; /*!< Enables the DAC interval trigger. */ +} pdb_dac_trigger_config_t; + +/******************************************************************************* + * API + ******************************************************************************/ +#if defined(__cplusplus) +extern "C" { +#endif + +/*! + * @name Initialization + * @{ + */ + +/*! + * @brief Initializes the PDB module. + * + * This function initializes the PDB module. The operations included are as follows. + * - Enable the clock for PDB instance. + * - Configure the PDB module. + * - Enable the PDB module. + * + * @param base PDB peripheral base address. + * @param config Pointer to the configuration structure. See "pdb_config_t". + */ +void PDB_Init(PDB_Type *base, const pdb_config_t *config); + +/*! + * @brief De-initializes the PDB module. + * + * @param base PDB peripheral base address. + */ +void PDB_Deinit(PDB_Type *base); + +/*! + * @brief Initializes the PDB user configuration structure. + * + * This function initializes the user configuration structure to a default value. The default values are as follows. + * @code + * config->loadValueMode = kPDB_LoadValueImmediately; + * config->prescalerDivider = kPDB_PrescalerDivider1; + * config->dividerMultiplicationFactor = kPDB_DividerMultiplicationFactor1; + * config->triggerInputSource = kPDB_TriggerSoftware; + * config->enableContinuousMode = false; + * @endcode + * @param config Pointer to configuration structure. See "pdb_config_t". + */ +void PDB_GetDefaultConfig(pdb_config_t *config); + +/*! + * @brief Enables the PDB module. + * + * @param base PDB peripheral base address. + * @param enable Enable the module or not. + */ +static inline void PDB_Enable(PDB_Type *base, bool enable) +{ + if (enable) + { + base->SC |= PDB_SC_PDBEN_MASK; + } + else + { + base->SC &= ~PDB_SC_PDBEN_MASK; + } +} + +/* @} */ + +/*! + * @name Basic Counter + * @{ + */ + +/*! + * @brief Triggers the PDB counter by software. + * + * @param base PDB peripheral base address. + */ +static inline void PDB_DoSoftwareTrigger(PDB_Type *base) +{ + base->SC |= PDB_SC_SWTRIG_MASK; +} + +/*! + * @brief Loads the counter values. + * + * This function loads the counter values from the internal buffer. + * See "pdb_load_value_mode_t" about PDB's load mode. + * + * @param base PDB peripheral base address. + */ +static inline void PDB_DoLoadValues(PDB_Type *base) +{ + base->SC |= PDB_SC_LDOK_MASK; +} + +/*! + * @brief Enables the DMA for the PDB module. + * + * @param base PDB peripheral base address. + * @param enable Enable the feature or not. + */ +static inline void PDB_EnableDMA(PDB_Type *base, bool enable) +{ + if (enable) + { + base->SC |= PDB_SC_DMAEN_MASK; + } + else + { + base->SC &= ~PDB_SC_DMAEN_MASK; + } +} + +/*! + * @brief Enables the interrupts for the PDB module. + * + * @param base PDB peripheral base address. + * @param mask Mask value for interrupts. See "_pdb_interrupt_enable". + */ +static inline void PDB_EnableInterrupts(PDB_Type *base, uint32_t mask) +{ + assert(0U == (mask & ~(PDB_SC_PDBEIE_MASK | PDB_SC_PDBIE_MASK))); + + base->SC |= mask; +} + +/*! + * @brief Disables the interrupts for the PDB module. + * + * @param base PDB peripheral base address. + * @param mask Mask value for interrupts. See "_pdb_interrupt_enable". + */ +static inline void PDB_DisableInterrupts(PDB_Type *base, uint32_t mask) +{ + assert(0U == (mask & ~(PDB_SC_PDBEIE_MASK | PDB_SC_PDBIE_MASK))); + + base->SC &= ~mask; +} + +/*! + * @brief Gets the status flags of the PDB module. + * + * @param base PDB peripheral base address. + * + * @return Mask value for asserted flags. See "_pdb_status_flags". + */ +static inline uint32_t PDB_GetStatusFlags(PDB_Type *base) +{ + return base->SC & (PDB_SC_PDBIF_MASK | PDB_SC_LDOK_MASK); +} + +/*! + * @brief Clears the status flags of the PDB module. + * + * @param base PDB peripheral base address. + * @param mask Mask value of flags. See "_pdb_status_flags". + */ +static inline void PDB_ClearStatusFlags(PDB_Type *base, uint32_t mask) +{ + assert(0U == (mask & ~PDB_SC_PDBIF_MASK)); + + base->SC &= ~mask; +} + +/*! + * @brief Specifies the counter period. + * + * @param base PDB peripheral base address. + * @param value Setting value for the modulus. 16-bit is available. + */ +static inline void PDB_SetModulusValue(PDB_Type *base, uint32_t value) +{ + base->MOD = PDB_MOD_MOD(value); +} + +/*! + * @brief Gets the PDB counter's current value. + * + * @param base PDB peripheral base address. + * + * @return PDB counter's current value. + */ +static inline uint32_t PDB_GetCounterValue(PDB_Type *base) +{ + return base->CNT; +} + +/*! + * @brief Sets the value for the PDB counter delay event. + * + * @param base PDB peripheral base address. + * @param value Setting value for PDB counter delay event. 16-bit is available. + */ +static inline void PDB_SetCounterDelayValue(PDB_Type *base, uint32_t value) +{ + base->IDLY = PDB_IDLY_IDLY(value); +} +/* @} */ + +/*! + * @name ADC Pre-trigger + * @{ + */ + +/*! + * @brief Configures the ADC pre-trigger in the PDB module. + * + * @param base PDB peripheral base address. + * @param channel Channel index for ADC instance. + * @param config Pointer to the configuration structure. See "pdb_adc_pretrigger_config_t". + */ +static inline void PDB_SetADCPreTriggerConfig(PDB_Type *base, uint32_t channel, pdb_adc_pretrigger_config_t *config) +{ + assert(channel < PDB_C1_COUNT); + assert(NULL != config); + + base->CH[channel].C1 = PDB_C1_BB(config->enableBackToBackOperationMask) | PDB_C1_TOS(config->enableOutputMask) | + PDB_C1_EN(config->enablePreTriggerMask); +} + +/*! + * @brief Sets the value for the ADC pre-trigger delay event. + * + * This function sets the value for ADC pre-trigger delay event. It specifies the delay value for the channel's + * corresponding pre-trigger. The pre-trigger asserts when the PDB counter is equal to the set value. + * + * @param base PDB peripheral base address. + * @param channel Channel index for ADC instance. + * @param preChannel Channel group index for ADC instance. + * @param value Setting value for ADC pre-trigger delay event. 16-bit is available. + */ +static inline void PDB_SetADCPreTriggerDelayValue(PDB_Type *base, uint32_t channel, uint32_t preChannel, uint32_t value) +{ + assert(channel < PDB_C1_COUNT); + assert(preChannel < PDB_DLY_COUNT2); + /* xx_COUNT2 is actually the count for pre-triggers in header file. xx_COUNT is used for the count of channels. */ + + base->CH[channel].DLY[preChannel] = PDB_DLY_DLY(value); +} + +/*! + * @brief Gets the ADC pre-trigger's status flags. + * + * @param base PDB peripheral base address. + * @param channel Channel index for ADC instance. + * + * @return Mask value for asserted flags. See "_pdb_adc_pretrigger_flags". + */ +static inline uint32_t PDB_GetADCPreTriggerStatusFlags(PDB_Type *base, uint32_t channel) +{ + assert(channel < PDB_C1_COUNT); + + return base->CH[channel].S; +} + +/*! + * @brief Clears the ADC pre-trigger status flags. + * + * @param base PDB peripheral base address. + * @param channel Channel index for ADC instance. + * @param mask Mask value for flags. See "_pdb_adc_pretrigger_flags". + */ +static inline void PDB_ClearADCPreTriggerStatusFlags(PDB_Type *base, uint32_t channel, uint32_t mask) +{ + assert(channel < PDB_C1_COUNT); + + base->CH[channel].S &= ~mask; +} + +/* @} */ + +#if defined(FSL_FEATURE_PDB_HAS_DAC) && FSL_FEATURE_PDB_HAS_DAC +/*! + * @name DAC Interval Trigger + * @{ + */ + +/*! + * @brief Configures the DAC trigger in the PDB module. + * + * @param base PDB peripheral base address. + * @param channel Channel index for DAC instance. + * @param config Pointer to the configuration structure. See "pdb_dac_trigger_config_t". + */ +void PDB_SetDACTriggerConfig(PDB_Type *base, uint32_t channel, pdb_dac_trigger_config_t *config); + +/*! + * @brief Sets the value for the DAC interval event. + * + * This fucntion sets the value for DAC interval event. DAC interval trigger triggers the DAC module to update + * the buffer when the DAC interval counter is equal to the set value. + * + * @param base PDB peripheral base address. + * @param channel Channel index for DAC instance. + * @param value Setting value for the DAC interval event. + */ +static inline void PDB_SetDACTriggerIntervalValue(PDB_Type *base, uint32_t channel, uint32_t value) +{ + assert(channel < PDB_INT_COUNT); + + base->DAC[channel].INT = PDB_INT_INT(value); +} + +/* @} */ +#endif /* FSL_FEATURE_PDB_HAS_DAC */ + +/*! + * @name Pulse-Out Trigger + * @{ + */ + +/*! + * @brief Enables the pulse out trigger channels. + * + * @param base PDB peripheral base address. + * @param channelMask Channel mask value for multiple pulse out trigger channel. + * @param enable Whether the feature is enabled or not. + */ +static inline void PDB_EnablePulseOutTrigger(PDB_Type *base, uint32_t channelMask, bool enable) +{ + if (enable) + { + base->POEN |= PDB_POEN_POEN(channelMask); + } + else + { + base->POEN &= ~(PDB_POEN_POEN(channelMask)); + } +} + +/*! + * @brief Sets event values for the pulse out trigger. + * + * This function is used to set event values for the pulse output trigger. + * These pulse output trigger delay values specify the delay for the PDB Pulse-out. Pulse-out goes high when the PDB + * counter is equal to the pulse output high value (value1). Pulse-out goes low when the PDB counter is equal to the + * pulse output low value (value2). + * + * @param base PDB peripheral base address. + * @param channel Channel index for pulse out trigger channel. + * @param value1 Setting value for pulse out high. + * @param value2 Setting value for pulse out low. + */ +static inline void PDB_SetPulseOutTriggerDelayValue(PDB_Type *base, uint32_t channel, uint32_t value1, uint32_t value2) +{ + assert(channel < PDB_PODLY_COUNT); + + base->PODLY[channel] = PDB_PODLY_DLY1(value1) | PDB_PODLY_DLY2(value2); +} + +/* @} */ +#if defined(__cplusplus) +} +#endif +/*! + * @} + */ +#endif /* _FSL_PDB_H_ */ |