ext/hal/nxp/imx/drivers/adc_imx7d.h

/*
 * Copyright (c) 2015, 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;
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef __ADC_IMX7D_H__
#define __ADC_IMX7D_H__

#include <stdint.h>
#include <stdbool.h>
#include <assert.h>
#include "device_imx.h"

/*!
 * @addtogroup adc_imx7d_driver
 * @{
 */

/*******************************************************************************
 * Definitions
 ******************************************************************************/

/*! @brief ADC module initialization structure. */
typedef struct _adc_init_config
{
    uint32_t sampleRate;         /*!< The desired ADC sample rate.*/
    bool     levelShifterEnable; /*!< The level shifter module configuration(Enable to power on ADC module).*/
} adc_init_config_t;

/*! @brief ADC logic channel initialization structure. */
typedef struct _adc_logic_ch_init_config
{
    uint32_t convertRate;      /*!< The continuous rate when continuous sample enabled.*/
    uint8_t  inputChannel;     /*!< The logic channel to be set.*/
    uint8_t  averageNumber;    /*!< The average number for hardware average function.*/
    bool     coutinuousEnable; /*!< Continuous sample mode enable configuration.*/
    bool     averageEnable;    /*!< Hardware average enable configuration.*/
} adc_logic_ch_init_config_t;

/*! @brief ADC logic channel selection enumeration. */
enum _adc_logic_ch_selection
{
    adcLogicChA  = 0x0, /*!< ADC Logic Channel A.*/
    adcLogicChB  = 0x1, /*!< ADC Logic Channel B.*/
    adcLogicChC  = 0x2, /*!< ADC Logic Channel C.*/
    adcLogicChD  = 0x3, /*!< ADC Logic Channel D.*/
    adcLogicChSW = 0x4, /*!< ADC Logic Channel Software.*/
};

/*! @brief ADC hardware average number enumeration. */
enum _adc_average_number
{
    adcAvgNum4  = 0x0, /*!< ADC Hardware Average Number is set to 4.*/
    adcAvgNum8  = 0x1, /*!< ADC Hardware Average Number is set to 8.*/
    adcAvgNum16 = 0x2, /*!< ADC Hardware Average Number is set to 16.*/
    adcAvgNum32 = 0x3, /*!< ADC Hardware Average Number is set to 32.*/
};

/*! @brief ADC build-in comparer work mode configuration enumeration. */
enum _adc_compare_mode
{
    adcCmpModeDisable         = 0x0, /*!< ADC build-in comparator is disabled.*/
    adcCmpModeGreaterThanLow  = 0x1, /*!< ADC build-in comparator is triggered when sample value greater than low threshold.*/
    adcCmpModeLessThanLow     = 0x2, /*!< ADC build-in comparator is triggered when sample value less than low threshold.*/
    adcCmpModeInInterval      = 0x3, /*!< ADC build-in comparator is triggered when sample value in interval between low and high threshold.*/
    adcCmpModeGreaterThanHigh = 0x5, /*!< ADC build-in comparator is triggered when sample value greater than high threshold.*/
    adcCmpModeLessThanHigh    = 0x6, /*!< ADC build-in comparator is triggered when sample value less than high threshold.*/
    adcCmpModeOutOffInterval  = 0x7, /*!< ADC build-in comparator is triggered when sample value out of interval between low and high threshold.*/
};

/*! @brief This enumeration contains the settings for all of the ADC interrupt configurations. */
enum _adc_interrupt
{
    adcIntLastFifoDataRead   = ADC_INT_EN_LAST_FIFO_DATA_READ_EN_MASK, /*!< Last FIFO Data Read Interrupt Enable.*/
    adcIntConvertTimeoutChSw = ADC_INT_EN_SW_CH_COV_TO_INT_EN_MASK,    /*!< Software Channel Conversion Time Out Interrupt Enable.*/
    adcIntConvertTimeoutChD  = ADC_INT_EN_CHD_COV_TO_INT_EN_MASK,      /*!< Channel D Conversion Time Out Interrupt Enable.*/
    adcIntConvertTimeoutChC  = ADC_INT_EN_CHC_COV_TO_INT_EN_MASK,      /*!< Channel C Conversion Time Out Interrupt Enable.*/
    adcIntConvertTimeoutChB  = ADC_INT_EN_CHB_COV_TO_INT_EN_MASK,      /*!< Channel B Conversion Time Out Interrupt Enable.*/
    adcIntConvertTimeoutChA  = ADC_INT_EN_CHA_COV_TO_INT_EN_MASK,      /*!< Channel A Conversion Time Out Interrupt Enable.*/
    adcIntConvertChSw        = ADC_INT_EN_SW_CH_COV_INT_EN_MASK,       /*!< Software Channel Conversion Interrupt Enable.*/
    adcIntConvertChD         = ADC_INT_EN_CHD_COV_INT_EN_MASK,         /*!< Channel D Conversion Interrupt Enable.*/
    adcIntConvertChC         = ADC_INT_EN_CHC_COV_INT_EN_MASK,         /*!< Channel C Conversion Interrupt Enable.*/
    adcIntConvertChB         = ADC_INT_EN_CHB_COV_INT_EN_MASK,         /*!< Channel B Conversion Interrupt Enable.*/
    adcIntConvertChA         = ADC_INT_EN_CHA_COV_INT_EN_MASK,         /*!< Channel A Conversion Interrupt Enable.*/
    adcIntFifoOverrun        = ADC_INT_EN_FIFO_OVERRUN_INT_EN_MASK,    /*!< FIFO overrun Interrupt Enable.*/
    adcIntFifoUnderrun       = ADC_INT_EN_FIFO_UNDERRUN_INT_EN_MASK,   /*!< FIFO underrun Interrupt Enable.*/
    adcIntDmaReachWatermark  = ADC_INT_EN_DMA_REACH_WM_INT_EN_MASK,    /*!< DMA Reach Watermark Level Interrupt Enable.*/
    adcIntCmpChD             = ADC_INT_EN_CHD_CMP_INT_EN_MASK,         /*!< Channel D Compare Interrupt Enable.*/
    adcIntCmpChC             = ADC_INT_EN_CHC_CMP_INT_EN_MASK,         /*!< Channel C Compare Interrupt Enable.*/
    adcIntCmpChB             = ADC_INT_EN_CHB_CMP_INT_EN_MASK,         /*!< Channel B Compare Interrupt Enable.*/
    adcIntCmpChA             = ADC_INT_EN_CHA_CMP_INT_EN_MASK,         /*!< Channel A Compare Interrupt Enable.*/
};

/*! @brief Flag for ADC interrupt/DMA status check or polling status. */
enum _adc_status_flag
{
    adcStatusLastFifoDataRead   = ADC_INT_STATUS_LAST_FIFO_DATA_READ_MASK, /*!< Last FIFO Data Read status flag.*/
    adcStatusConvertTimeoutChSw = ADC_INT_STATUS_SW_CH_COV_TO_MASK,        /*!< Software Channel Conversion Time Out status flag.*/
    adcStatusConvertTimeoutChD  = ADC_INT_STATUS_CHD_COV_TO_MASK,          /*!< Channel D Conversion Time Out status flag.*/
    adcStatusConvertTimeoutChC  = ADC_INT_STATUS_CHC_COV_TO_MASK,          /*!< Channel C Conversion Time Out status flag.*/
    adcStatusConvertTimeoutChB  = ADC_INT_STATUS_CHB_COV_TO_MASK,          /*!< Channel B Conversion Time Out status flag.*/
    adcStatusConvertTimeoutChA  = ADC_INT_STATUS_CHA_COV_TO_MASK,          /*!< Channel A Conversion Time Out status flag.*/
    adcStatusConvertChSw        = ADC_INT_STATUS_SW_CH_COV_MASK,           /*!< Software Channel Conversion status flag.*/
    adcStatusConvertChD         = ADC_INT_STATUS_CHD_COV_MASK,             /*!< Channel D Conversion status flag.*/
    adcStatusConvertChC         = ADC_INT_STATUS_CHC_COV_MASK,             /*!< Channel C Conversion status flag.*/
    adcStatusConvertChB         = ADC_INT_STATUS_CHB_COV_MASK,             /*!< Channel B Conversion status flag.*/
    adcStatusConvertChA         = ADC_INT_STATUS_CHA_COV_MASK,             /*!< Channel A Conversion status flag.*/
    adcStatusFifoOverrun        = ADC_INT_STATUS_FIFO_OVERRUN_MASK,        /*!< FIFO Overrun status flag.*/
    adcStatusFifoUnderrun       = ADC_INT_STATUS_FIFO_UNDERRUN_MASK,       /*!< FIFO Underrun status flag.*/
    adcStatusDmaReachWatermark  = ADC_INT_STATUS_DMA_REACH_WM_MASK,        /*!< DMA Reach Watermark Level status flag.*/
    adcStatusCmpChD             = ADC_INT_STATUS_CHD_CMP_MASK,             /*!< Channel D Compare status flag.*/
    adcStatusCmpChC             = ADC_INT_STATUS_CHC_CMP_MASK,             /*!< Channel C Compare status flag.*/
    adcStatusCmpChB             = ADC_INT_STATUS_CHB_CMP_MASK,             /*!< Channel B Compare status flag.*/
    adcStatusCmpChA             = ADC_INT_STATUS_CHA_CMP_MASK,             /*!< Channel A Compare status flag.*/
};

/*******************************************************************************
 * API
 ******************************************************************************/

#if defined(__cplusplus)
extern "C" {
#endif

/*!
 * @name ADC Module Initialization and Configuration functions.
 * @{
 */

/*!
 * @brief Initialize ADC to reset state and initialize with initialization structure.
 *
 * @param base ADC base pointer.
 * @param initConfig ADC initialization structure.
 */
void ADC_Init(ADC_Type* base, const adc_init_config_t* initConfig);

/*!
 * @brief This function reset ADC module register content to its default value.
 *
 * @param base ADC base pointer.
 */
void ADC_Deinit(ADC_Type* base);

/*!
 * @brief This function Enable ADC module build-in Level Shifter.
 *        For i.MX 7Dual, Level Shifter should always be enabled.
 *        User can disable Level Shifter to save power.
 *
 * @param base ADC base pointer.
 */
static inline void ADC_LevelShifterEnable(ADC_Type* base)
{
    ADC_ADC_CFG_REG(base) |= ADC_ADC_CFG_ADC_EN_MASK;
}

/*!
 * @brief This function Disable ADC module build-in Level Shifter
 *        to save power.
 *
 * @param base ADC base pointer.
 */
static inline void ADC_LevelShifterDisable(ADC_Type* base)
{
    ADC_ADC_CFG_REG(base) &= ~ADC_ADC_CFG_ADC_EN_MASK;
}

/*!
 * @brief This function is used to set ADC module sample rate.
 *
 * @param base ADC base pointer.
 * @param sampleRate Desired ADC sample rate.
 */
void ADC_SetSampleRate(ADC_Type* base, uint32_t sampleRate);

/*@}*/

/*!
 * @name ADC Low power control functions.
 * @{
 */

/*!
 * @brief This function is used to stop all digital part power.
 *
 * @param base ADC base pointer.
 * @param clockDown Stop all ADC digital part or not.
 *                  - true: Clock down.
 *                  - false: Clock running.
 */
void ADC_SetClockDownCmd(ADC_Type* base, bool clockDown);

/*!
 * @brief This function is used to power down ADC analogue core.
 *        Before entering into stop-mode, power down ADC analogue core first.
 * @param base ADC base pointer.
 * @param powerDown Power down ADC analogue core or not.
 *                  - true: Power down the ADC analogue core.
 *                  - false: Do not power down the ADC analogue core.
 */
void ADC_SetPowerDownCmd(ADC_Type* base, bool powerDown);

/*@}*/

/*!
 * @name ADC Convert Channel Initialization and Configuration functions.
 * @{
 */

/*!
 * @brief Initialize ADC Logic channel with initialization structure.
 *
 * @param base ADC base pointer.
 * @param logicCh ADC module logic channel selection (see @ref _adc_logic_ch_selection enumeration).
 * @param chInitConfig ADC logic channel initialization structure.
 */
void ADC_LogicChInit(ADC_Type* base, uint8_t logicCh, const adc_logic_ch_init_config_t* chInitConfig);

/*!
 * @brief Reset target ADC logic channel registers to default value.
 *
 * @param base ADC base pointer.
 * @param logicCh ADC module logic channel selection (see @ref _adc_logic_ch_selection enumeration).
 */
void ADC_LogicChDeinit(ADC_Type* base, uint8_t logicCh);

/*!
 * @brief Select input channel for target logic channel.
 *
 * @param base ADC base pointer.
 * @param logicCh ADC module logic channel selection (see @ref _adc_logic_ch_selection enumeration).
 * @param inputCh Input channel selection for target logic channel(vary from 0 to 15).
 */
void ADC_SelectInputCh(ADC_Type* base, uint8_t logicCh, uint8_t inputCh);

/*!
 * @brief Set ADC conversion rate of target logic channel.
 *
 * @param base ADC base pointer.
 * @param logicCh ADC module logic channel selection (see @ref _adc_logic_ch_selection enumeration).
 * @param convertRate ADC conversion rate in Hz.
 */
void ADC_SetConvertRate(ADC_Type* base, uint8_t logicCh, uint32_t convertRate);

/*!
 * @brief Set work state of hardware average feature of target logic channel.
 *
 * @param base ADC base pointer.
 * @param logicCh ADC module logic channel selection (see @ref _adc_logic_ch_selection enumeration).
 * @param enable Enable/Disable hardware average
 *               - true: Enable hardware average of given logic channel.
 *               - false: Disable hardware average of given logic channel.
 */
void ADC_SetAverageCmd(ADC_Type* base, uint8_t logicCh, bool enable);

/*!
 * @brief Set hardware average number of target logic channel.
 *
 * @param base ADC base pointer.
 * @param logicCh ADC module logic channel selection (see @ref _adc_logic_ch_selection enumeration).
 * @param avgNum hardware average number(should select from @ref _adc_average_number enumeration).
 */
void ADC_SetAverageNum(ADC_Type* base, uint8_t logicCh, uint8_t avgNum);

/*@}*/

/*!
 * @name ADC Conversion Control functions.
 * @{
 */

/*!
 * @brief Set continuous convert work mode of target logic channel.
 *
 * @param base ADC base pointer.
 * @param logicCh ADC module logic channel selection (see @ref _adc_logic_ch_selection enumeration).
 * @param enable Enable/Disable continuous convertion.
 *               - true:  Enable continuous convertion.
 *               - false: Disable continuous convertion.
 */
void ADC_SetConvertCmd(ADC_Type* base, uint8_t logicCh, bool enable);

/*!
 * @brief Trigger single time convert on target logic channel.
 *
 * @param base ADC base pointer.
 * @param logicCh ADC module logic channel selection (see @ref _adc_logic_ch_selection enumeration).
 */
void ADC_TriggerSingleConvert(ADC_Type* base, uint8_t logicCh);

/*!
 * @brief Stop current convert on target logic channel.
 *        For logic channel A ~ D, current conversion stops immediately.
 *        For Software channel, this function is waited until current conversion is finished.
 * @param base ADC base pointer.
 * @param logicCh ADC module logic channel selection (see @ref _adc_logic_ch_selection enumeration).
 */
void ADC_StopConvert(ADC_Type* base, uint8_t logicCh);

/*!
 * @brief Get 12-bit length right aligned convert result.
 *
 * @param base ADC base pointer.
 * @param logicCh ADC module logic channel selection (see @ref _adc_logic_ch_selection enumeration).
 * @return convert result on target logic channel.
 */
uint16_t ADC_GetConvertResult(ADC_Type* base, uint8_t logicCh);

/*@}*/

/*!
 * @name ADC Comparer Control functions.
 * @{
 */

/*!
 * @brief Set the work mode of ADC module build-in comparer on target logic channel.
 *
 * @param base ADC base pointer.
 * @param logicCh ADC module logic channel selection (see @ref _adc_logic_ch_selection enumeration).
 * @param cmpMode Comparer work mode selected from @ref _adc_compare_mode enumeration.
 */
void ADC_SetCmpMode(ADC_Type* base, uint8_t logicCh, uint8_t cmpMode);

/*!
 * @brief Set ADC module build-in comparer high threshold on target logic channel.
 *
 * @param base ADC base pointer.
 * @param logicCh ADC module logic channel selection (see @ref _adc_logic_ch_selection enumeration).
 * @param threshold Comparer threshold in 12-bit unsigned int formate.
 */
void ADC_SetCmpHighThres(ADC_Type* base, uint8_t logicCh, uint16_t threshold);

/*!
 * @brief Set ADC module build-in comparer low threshold on target logic channel.
 *
 * @param base ADC base pointer.
 * @param logicCh ADC module logic channel selection (see @ref _adc_logic_ch_selection enumeration).
 * @param threshold Comparer threshold in 12-bit unsigned int formate.
 */
void ADC_SetCmpLowThres(ADC_Type* base, uint8_t logicCh, uint16_t threshold);

/*!
 * @brief Set the working mode of ADC module auto disable feature on target logic channel.
 *        This feature can disable continuous conversion when CMP condition matched.
 *
 * @param base ADC base pointer.
 * @param logicCh ADC module logic channel selection (see @ref _adc_logic_ch_selection enumeration).
 * @param enable Enable/Disable Auto Disable feature.
 *               - true:  Enable Auto Disable feature.
 *               - false: Disable Auto Disable feature.
 */
void ADC_SetAutoDisableCmd(ADC_Type* base, uint8_t logicCh, bool enable);

/*@}*/

/*!
 * @name Interrupt and Flag control functions.
 * @{
 */

/*!
 * @brief Enables or disables ADC interrupt requests.
 *
 * @param base ADC base pointer.
 * @param intSource ADC interrupt sources to configuration.
 * @param enable Enable/Disable given ADC interrupt.
 *               - true: Enable given ADC interrupt.
 *               - false: Disable given ADC interrupt.
 */
void ADC_SetIntCmd(ADC_Type* base, uint32_t intSource, bool enable);

/*!
 * @brief Enables or disables ADC interrupt flag when interrupt condition met.
 *
 * @param base ADC base pointer.
 * @param intSignal ADC interrupt signals to configuration (see @ref _adc_interrupt enumeration).
 * @param enable Enable/Disable given ADC interrupt flags.
 *               - true: Enable given ADC interrupt flags.
 *               - false: Disable given ADC interrupt flags.
 */
void ADC_SetIntSigCmd(ADC_Type* base, uint32_t intSignal, bool enable);

/*!
 * @brief Gets the ADC status flag state.
 *
 * @param base ADC base pointer.
 * @param flags ADC status flag mask defined in @ref _adc_status_flag enumeration.
 * @return ADC status, each bit represents one status flag
 */
static inline uint32_t ADC_GetStatusFlag(ADC_Type* base, uint32_t flags)
{
    return (ADC_INT_STATUS_REG(base) & flags);
}

/*!
 * @brief Clear one or more ADC status flag state.
 *
 * @param base ADC base pointer.
 * @param flags ADC status flag mask defined in @ref _adc_status_flag enumeration.
 */
static inline void ADC_ClearStatusFlag(ADC_Type* base, uint32_t flags)
{
    ADC_INT_STATUS_REG(base) &= ~flags;
}

/*@}*/

/*!
 * @name DMA & FIFO control functions.
 * @{
 */

/*!
 * @brief Set the reset state of ADC internal DMA part.
 *
 * @param base ADC base pointer.
 * @param active Reset DMA & DMA FIFO or not.
 *               - true: Reset the DMA and DMA FIFO return to its reset value.
 *               - false: Do not reset DMA and DMA FIFO.
 */
void ADC_SetDmaReset(ADC_Type* base, bool active);

/*!
 * @brief Set the work mode of ADC DMA part.
 *
 * @param base ADC base pointer.
 * @param enable Enable/Disable ADC DMA part.
 *               - true: Enable DMA, the data in DMA FIFO should move by SDMA.
 *               - false: Disable DMA, the data in DMA FIFO can only move by CPU.
 */
void ADC_SetDmaCmd(ADC_Type* base, bool enable);

/*!
 * @brief Set the work mode of ADC DMA FIFO part.
 *
 * @param base ADC base pointer.
 * @param enable Enable/Disable DMA FIFO.
 *               - true: Enable DMA FIFO.
 *               - false: Disable DMA FIFO.
 */
void ADC_SetDmaFifoCmd(ADC_Type* base, bool enable);

/*!
 * @brief Select the logic channel that uses the DMA transfer.
 *
 * @param base ADC base pointer.
 * @param logicCh ADC module logic channel selection (see @ref _adc_logic_ch_selection enumeration).
 */
static inline void ADC_SetDmaCh(ADC_Type* base, uint32_t logicCh)
{
    assert(logicCh <= adcLogicChD);
    ADC_DMA_FIFO_REG(base) = (ADC_DMA_FIFO_REG(base) & ~ADC_DMA_FIFO_DMA_CH_SEL_MASK) | \
                             ADC_DMA_FIFO_DMA_CH_SEL(logicCh);
}

/*!
 * @brief Set the DMA request trigger watermark.
 *
 * @param base ADC base pointer.
 * @param watermark DMA request trigger watermark.
 */
static inline void ADC_SetDmaWatermark(ADC_Type* base, uint32_t watermark)
{
    assert(watermark <= 0x1FF);
    ADC_DMA_FIFO_REG(base) = (ADC_DMA_FIFO_REG(base) & ~ADC_DMA_FIFO_DMA_WM_LVL_MASK) | \
                             ADC_DMA_FIFO_DMA_WM_LVL(watermark);
}

/*!
 * @brief Get the convert result from DMA FIFO.
 *        Data position:
 *            DMA_FIFO_DATA1(27~16bits)
 *            DMA_FIFO_DATA0(11~0bits)
 *
 * @param base ADC base pointer.
 * @return Get 2 ADC transfer result from DMA FIFO.
 */
static inline uint32_t ADC_GetFifoData(ADC_Type* base)
{
    return ADC_DMA_FIFO_DAT_REG(base);
}

/*!
 * @brief Get the DMA FIFO full status
 *
 * @param base ADC base pointer.
 * @retval true: DMA FIFO full.
 * @retval false: DMA FIFO not full.
 */
static inline bool ADC_IsFifoFull(ADC_Type* base)
{
    return (bool)(ADC_FIFO_STATUS_REG(base) & ADC_FIFO_STATUS_FIFO_FULL_MASK);
}

/*!
 * @brief Get the DMA FIFO empty status
 *
 * @param base ADC base pointer.
 * @retval true: DMA FIFO is empty.
 * @retval false: DMA FIFO is not empty.
 */
static inline bool ADC_IsFifoEmpty(ADC_Type* base)
{
    return (bool)(ADC_FIFO_STATUS_REG(base) & ADC_FIFO_STATUS_FIFO_EMPTY_MASK);
}

/*!
 * @brief Get the entries number in DMA FIFO.
 *
 * @param base ADC base pointer.
 * @return The numbers of data in DMA FIFO.
 */
static inline uint8_t ADC_GetFifoEntries(ADC_Type* base)
{
    return ADC_FIFO_STATUS_REG(base) & ADC_FIFO_STATUS_FIFO_ENTRIES_MASK;
}

/*@}*/

#ifdef __cplusplus
}
#endif

/*! @}*/

#endif /* __ADC_IMX7D_H__ */
/*******************************************************************************
 * EOF
 ******************************************************************************/