text: /**
   ******************************************************************************
   * @file    HTS221_Driver.h
   * @author  HESA Application Team
   * @version V1.1
   * @date    10-August-2016
   * @brief   HTS221 driver header file
   ******************************************************************************
   * @attention
   *
   * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
   *
   * Redistribution and use in source and binary forms, with or without modification,
   * are permitted provided that the following conditions are met:
   *   1. Redistributions of source code must retain the above copyright notice,
   *      this list of conditions and the following disclaimer.
   *   2. 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.
   *   3. Neither the name of STMicroelectronics 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.
   *
   ******************************************************************************
   */
  
  /* Define to prevent recursive inclusion -------------------------------------*/
  #ifndef __HTS221_DRIVER__H
  #define __HTS221_DRIVER__H
  
  #include <stdint.h>
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  /* Uncomment the line below to expanse the "assert_param" macro in the drivers code */
  #define USE_FULL_ASSERT_HTS221
  
  /* Exported macro ------------------------------------------------------------*/
  #ifdef  USE_FULL_ASSERT_HTS221
  
  /**
  * @brief  The assert_param macro is used for function's parameters check.
  * @param  expr: If expr is false, it calls assert_failed function which reports
  *         the name of the source file and the source line number of the call
  *         that failed. If expr is true, it returns no value.
  * @retval None
  */
  #define HTS221_assert_param(expr) ((expr) ? (void)0 : HTS221_assert_failed((uint8_t *)__FILE__, __LINE__))
  /* Exported functions ------------------------------------------------------- */
  void HTS221_assert_failed(uint8_t* file, uint32_t line);
  #else
  #define HTS221_assert_param(expr) ((void)0)
  #endif /* USE_FULL_ASSERT_HTS221 */
  
  /** @addtogroup Environmental_Sensor
  * @{
  */
  
  /** @addtogroup HTS221_DRIVER
  * @{
  */
  
  /* Exported Types -------------------------------------------------------------*/
  /** @defgroup HTS221_Exported_Types
  * @{
  */
  
  
  /**
  * @brief  Error code type.
  */
  typedef enum {HTS221_OK = (uint8_t)0, HTS221_ERROR = !HTS221_OK} HTS221_Error_et;
  
  /**
  * @brief  State type.
  */
  typedef enum {HTS221_DISABLE = (uint8_t)0, HTS221_ENABLE = !HTS221_DISABLE} HTS221_State_et;
  #define IS_HTS221_State(MODE) ((MODE == HTS221_ENABLE) || (MODE == HTS221_DISABLE))
  
  /**
  * @brief  Bit status type.
  */
  typedef enum {HTS221_RESET = (uint8_t)0, HTS221_SET = !HTS221_RESET} HTS221_BitStatus_et;
  #define IS_HTS221_BitStatus(MODE) ((MODE == HTS221_RESET) || (MODE == HTS221_SET))
  
  /**
  * @brief  Humidity average.
  */
  typedef enum
  {
    HTS221_AVGH_4         = (uint8_t)0x00,         /*!< Internal average on 4 samples */
    HTS221_AVGH_8         = (uint8_t)0x01,         /*!< Internal average on 8 samples */
    HTS221_AVGH_16        = (uint8_t)0x02,         /*!< Internal average on 16 samples */
    HTS221_AVGH_32        = (uint8_t)0x03,         /*!< Internal average on 32 samples */
    HTS221_AVGH_64        = (uint8_t)0x04,         /*!< Internal average on 64 samples */
    HTS221_AVGH_128       = (uint8_t)0x05,         /*!< Internal average on 128 samples */
    HTS221_AVGH_256       = (uint8_t)0x06,         /*!< Internal average on 256 samples */
    HTS221_AVGH_512       = (uint8_t)0x07          /*!< Internal average on 512 samples */
  } HTS221_Avgh_et;
  #define IS_HTS221_AVGH(AVGH) ((AVGH == HTS221_AVGH_4) || (AVGH == HTS221_AVGH_8) || \
                                (AVGH == HTS221_AVGH_16) || (AVGH == HTS221_AVGH_32) || \
                                (AVGH == HTS221_AVGH_64) || (AVGH == HTS221_AVGH_128) || \
                                (AVGH == HTS221_AVGH_256) || (AVGH == HTS221_AVGH_512))
  
  /**
  * @brief  Temperature average.
  */
  typedef enum
  {
    HTS221_AVGT_2         = (uint8_t)0x00,        /*!< Internal average on 2 samples */
    HTS221_AVGT_4         = (uint8_t)0x08,        /*!< Internal average on 4 samples */
    HTS221_AVGT_8         = (uint8_t)0x10,        /*!< Internal average on 8 samples */
    HTS221_AVGT_16        = (uint8_t)0x18,        /*!< Internal average on 16 samples */
    HTS221_AVGT_32        = (uint8_t)0x20,        /*!< Internal average on 32 samples */
    HTS221_AVGT_64        = (uint8_t)0x28,        /*!< Internal average on 64 samples */
    HTS221_AVGT_128       = (uint8_t)0x30,        /*!< Internal average on 128 samples */
    HTS221_AVGT_256       = (uint8_t)0x38         /*!< Internal average on 256 samples */
  } HTS221_Avgt_et;
  #define IS_HTS221_AVGT(AVGT) ((AVGT == HTS221_AVGT_2) || (AVGT == HTS221_AVGT_4) || \
                                (AVGT == HTS221_AVGT_8) || (AVGT == HTS221_AVGT_16) || \
                                (AVGT == HTS221_AVGT_32) || (AVGT == HTS221_AVGT_64) || \
                                (AVGT == HTS221_AVGT_128) || (AVGT == HTS221_AVGT_256))
  
  /**
  * @brief  Output data rate configuration.
  */
  typedef enum
  {
    HTS221_ODR_ONE_SHOT  = (uint8_t)0x00,         /*!< Output Data Rate: one shot */
    HTS221_ODR_1HZ       = (uint8_t)0x01,         /*!< Output Data Rate: 1Hz */
    HTS221_ODR_7HZ       = (uint8_t)0x02,         /*!< Output Data Rate: 7Hz */
    HTS221_ODR_12_5HZ    = (uint8_t)0x03,         /*!< Output Data Rate: 12.5Hz */
  } HTS221_Odr_et;
  #define IS_HTS221_ODR(ODR) ((ODR == HTS221_ODR_ONE_SHOT) || (ODR == HTS221_ODR_1HZ) || \
                              (ODR == HTS221_ODR_7HZ) || (ODR == HTS221_ODR_12_5HZ))
  
  
  /**
  * @brief  Push-pull/Open Drain selection on DRDY pin.
  */
  typedef enum
  {
    HTS221_PUSHPULL   = (uint8_t)0x00,   /*!< DRDY pin in push pull */
    HTS221_OPENDRAIN  = (uint8_t)0x40    /*!< DRDY pin in open drain */
  } HTS221_OutputType_et;
  #define IS_HTS221_OutputType(MODE) ((MODE == HTS221_PUSHPULL) || (MODE == HTS221_OPENDRAIN))
  
  /**
  * @brief  Active level of DRDY pin.
  */
  typedef enum
  {
    HTS221_HIGH_LVL   = (uint8_t)0x00,   /*!< HIGH state level for DRDY pin */
    HTS221_LOW_LVL    = (uint8_t)0x80    /*!< LOW state level for DRDY pin */
  } HTS221_DrdyLevel_et;
  #define IS_HTS221_DrdyLevelType(MODE) ((MODE == HTS221_HIGH_LVL) || (MODE == HTS221_LOW_LVL))
  
  /**
  * @brief  Driver Version Info structure definition.
  */
  typedef struct
  {
    uint8_t   Major;
    uint8_t   Minor;
    uint8_t   Point;
  } HTS221_DriverVersion_st;
  
  
  /**
  * @brief  HTS221 Init structure definition.
  */
  typedef struct
  {
    HTS221_Avgh_et        avg_h;            /*!< Humidity average */
    HTS221_Avgt_et        avg_t;            /*!< Temperature average */
    HTS221_Odr_et         odr;              /*!< Output data rate */
    HTS221_State_et       bdu_status;       /*!< HTS221_ENABLE/HTS221_DISABLE the block data update */
    HTS221_State_et       heater_status;    /*!< HTS221_ENABLE/HTS221_DISABLE the internal heater */
  
    HTS221_DrdyLevel_et   irq_level;        /*!< HTS221_HIGH_LVL/HTS221_LOW_LVL the level for DRDY pin */
    HTS221_OutputType_et  irq_output_type;  /*!< Output configuration for DRDY pin */
    HTS221_State_et       irq_enable;       /*!< HTS221_ENABLE/HTS221_DISABLE interrupt on DRDY pin */
  } HTS221_Init_st;
  
  /**
  * @}
  */
  
  
  /* Exported Constants ---------------------------------------------------------*/
  /** @defgroup HTS221_Exported_Constants
  * @{
  */
  
  /**
  * @brief  Bitfield positioning.
  */
  #define HTS221_BIT(x) ((uint8_t)x)
  
  /**
  * @brief  I2C address.
  */
  #define HTS221_I2C_ADDRESS  (uint8_t)0xBE
  
  /**
  * @brief  Driver version.
  */
  #define HTS221_DRIVER_VERSION_MAJOR (uint8_t)1
  #define HTS221_DRIVER_VERSION_MINOR (uint8_t)1
  #define HTS221_DRIVER_VERSION_POINT (uint8_t)0
  
  /**
  * @addtogroup HTS221_Registers
  * @{
  */
  
  
  /**
  * @brief Device Identification register.
  * \code
  * Read
  * Default value: 0xBC
  * 7:0 This read-only register contains the device identifier for HTS221.
  * \endcode
  */
  #define HTS221_WHO_AM_I_REG          (uint8_t)0x0F
  
  /**
  * @brief Device Identification value.
  */
  #define HTS221_WHO_AM_I_VAL         (uint8_t)0xBC
  
  
  /**
  * @brief Humidity and temperature average mode register.
  * \code
  * Read/write
  * Default value: 0x1B
  * 7:6 Reserved.
  * 5:3 AVGT2-AVGT1-AVGT0: Select the temperature internal average.
  *
  *      AVGT2 | AVGT1 | AVGT0 | Nr. Internal Average
  *   ----------------------------------------------------
  *       0    |   0   |   0   |    2
  *       0    |   0   |   1   |    4
  *       0    |   1   |   0   |    8
  *       0    |   1   |   1   |    16
  *       1    |   0   |   0   |    32
  *       1    |   0   |   1   |    64
  *       1    |   1   |   0   |    128
  *       1    |   1   |   1   |    256
  *
  * 2:0 AVGH2-AVGH1-AVGH0: Select humidity internal average.
  *      AVGH2 | AVGH1 |  AVGH0 | Nr. Internal Average
  *   ------------------------------------------------------
  *       0    |   0   |   0   |    4
  *       0    |   0   |   1   |    8
  *       0    |   1   |   0   |    16
  *       0    |   1   |   1   |    32
  *       1    |   0   |   0   |    64
  *       1    |   0   |   1   |    128
  *       1    |   1   |   0   |    256
  *       1    |   1   |   1   |    512
  *
  * \endcode
  */
  #define HTS221_AV_CONF_REG        (uint8_t)0x10
  
  #define HTS221_AVGT_BIT           HTS221_BIT(3)
  #define HTS221_AVGH_BIT           HTS221_BIT(0)
  
  #define HTS221_AVGH_MASK          (uint8_t)0x07
  #define HTS221_AVGT_MASK          (uint8_t)0x38
  
  /**
  * @brief Control register 1.
  * \code
  * Read/write
  * Default value: 0x00
  * 7 PD: power down control. 0 - power down mode; 1 - active mode.
  * 6:3 Reserved.
  * 2 BDU: block data update. 0 - continuous update; 1 - output registers not updated until MSB and LSB reading.
  * 1:0 ODR1, ODR0: output data rate selection.
  *
  *   ODR1  | ODR0  | Humidity output data-rate(Hz)  | Pressure output data-rate(Hz)
  *   ----------------------------------------------------------------------------------
  *     0   |   0   |         one shot               |         one shot
  *     0   |   1   |            1                   |            1
  *     1   |   0   |            7                   |            7
  *     1   |   1   |           12.5                 |           12.5
  *
  * \endcode
  */
  #define HTS221_CTRL_REG1      (uint8_t)0x20
  
  #define HTS221_PD_BIT          HTS221_BIT(7)
  #define HTS221_BDU_BIT         HTS221_BIT(2)
  #define HTS221_ODR_BIT         HTS221_BIT(0)
  
  #define HTS221_PD_MASK        (uint8_t)0x80
  #define HTS221_BDU_MASK       (uint8_t)0x04
  #define HTS221_ODR_MASK       (uint8_t)0x03
  
  /**
  * @brief Control register 2.
  * \code
  * Read/write
  * Default value: 0x00
  * 7 BOOT:  Reboot memory content. 0: normal mode; 1: reboot memory content. Self-cleared upon completation.
  * 6:2 Reserved.
  * 1 HEATHER: 0: heater enable; 1: heater disable.
  * 0 ONE_SHOT: 0: waiting for start of conversion; 1: start for a new dataset. Self-cleared upon completation.
  * \endcode
  */
  #define HTS221_CTRL_REG2      (uint8_t)0x21
  
  #define HTS221_BOOT_BIT        HTS221_BIT(7)
  #define HTS221_HEATHER_BIT     HTS221_BIT(1)
  #define HTS221_ONESHOT_BIT     HTS221_BIT(0)
  
  #define HTS221_BOOT_MASK      (uint8_t)0x80
  #define HTS221_HEATHER_MASK   (uint8_t)0x02
  #define HTS221_ONE_SHOT_MASK  (uint8_t)0x01
  
  /**
  * @brief Control register 3.
  * \code
  * Read/write
  * Default value: 0x00
  * 7 DRDY_H_L: Interrupt edge. 0: active high, 1: active low.
  * 6 PP_OD: Push-Pull/OpenDrain selection on interrupt pads. 0: push-pull; 1: open drain.
  * 5:3 Reserved.
  * 2 DRDY: interrupt config. 0: disable, 1: enable.
  * \endcode
  */
  #define HTS221_CTRL_REG3      (uint8_t)0x22
  
  #define HTS221_DRDY_H_L_BIT    HTS221_BIT(7)
  #define HTS221_PP_OD_BIT       HTS221_BIT(6)
  #define HTS221_DRDY_BIT        HTS221_BIT(2)
  
  #define HTS221_DRDY_H_L_MASK  (uint8_t)0x80
  #define HTS221_PP_OD_MASK     (uint8_t)0x40
  #define HTS221_DRDY_MASK      (uint8_t)0x04
  
  /**
  * @brief  Status register.
  * \code
  * Read
  * Default value: 0x00
  * 7:2 Reserved.
  * 1 H_DA: Humidity data available. 0: new data for humidity is not yet available; 1: new data for humidity is available.
  * 0 T_DA: Temperature data available. 0: new data for temperature is not yet available; 1: new data for temperature is available.
  * \endcode
  */
  #define HTS221_STATUS_REG    (uint8_t)0x27
  
  #define HTS221_H_DA_BIT       HTS221_BIT(1)
  #define HTS221_T_DA_BIT       HTS221_BIT(0)
  
  #define HTS221_HDA_MASK      (uint8_t)0x02
  #define HTS221_TDA_MASK      (uint8_t)0x01
  
  /**
  * @brief  Humidity data (LSB).
  * \code
  * Read
  * Default value: 0x00.
  * HOUT7 - HOUT0: Humidity data LSB (2's complement).
  * \endcode
  */
  #define HTS221_HR_OUT_L_REG        (uint8_t)0x28
  
  /**
  * @brief  Humidity data (MSB).
  * \code
  * Read
  * Default value: 0x00.
  * HOUT15 - HOUT8: Humidity data MSB (2's complement).
  * \endcode
  */
  #define HTS221_HR_OUT_H_REG        (uint8_t)0x29
  
  
  /**
  * @brief  Temperature data (LSB).
  * \code
  * Read
  * Default value: 0x00.
  * TOUT7 - TOUT0: temperature data LSB.
  * \endcode
  */
  #define HTS221_TEMP_OUT_L_REG         (uint8_t)0x2A
  
  /**
  * @brief  Temperature data (MSB).
  * \code
  * Read
  * Default value: 0x00.
  * TOUT15 - TOUT8: temperature data MSB.
  * \endcode
  */
  #define HTS221_TEMP_OUT_H_REG         (uint8_t)0x2B
  
  /**
  * @brief  Calibration registers.
  * \code
  * Read
  * \endcode
  */
  #define HTS221_H0_RH_X2        (uint8_t)0x30
  #define HTS221_H1_RH_X2        (uint8_t)0x31
  #define HTS221_T0_DEGC_X8      (uint8_t)0x32
  #define HTS221_T1_DEGC_X8      (uint8_t)0x33
  #define HTS221_T0_T1_DEGC_H2   (uint8_t)0x35
  #define HTS221_H0_T0_OUT_L     (uint8_t)0x36
  #define HTS221_H0_T0_OUT_H     (uint8_t)0x37
  #define HTS221_H1_T0_OUT_L     (uint8_t)0x3A
  #define HTS221_H1_T0_OUT_H     (uint8_t)0x3B
  #define HTS221_T0_OUT_L        (uint8_t)0x3C
  #define HTS221_T0_OUT_H        (uint8_t)0x3D
  #define HTS221_T1_OUT_L        (uint8_t)0x3E
  #define HTS221_T1_OUT_H        (uint8_t)0x3F
  
  
  /**
  * @}
  */
  
  
  /**
  * @}
  */
  
  
  /* Exported Functions -------------------------------------------------------------*/
  /** @defgroup HTS221_Exported_Functions
  * @{
  */
  
  HTS221_Error_et HTS221_ReadReg( void *handle, uint8_t RegAddr, uint16_t NumByteToRead, uint8_t *Data );
  HTS221_Error_et HTS221_WriteReg( void *handle, uint8_t RegAddr, uint16_t NumByteToWrite, uint8_t *Data );
  
  HTS221_Error_et HTS221_Get_DriverVersion(HTS221_DriverVersion_st* version);
  HTS221_Error_et HTS221_Get_DeviceID(void *handle, uint8_t* deviceid);
  
  HTS221_Error_et HTS221_Set_InitConfig(void *handle, HTS221_Init_st* pxInit);
  HTS221_Error_et HTS221_Get_InitConfig(void *handle, HTS221_Init_st* pxInit);
  HTS221_Error_et HTS221_DeInit(void *handle);
  HTS221_Error_et HTS221_IsMeasurementCompleted(void *handle, HTS221_BitStatus_et* Is_Measurement_Completed);
  
  HTS221_Error_et HTS221_Get_Measurement(void *handle, uint16_t* humidity, int16_t* temperature);
  HTS221_Error_et HTS221_Get_RawMeasurement(void *handle, int16_t* humidity, int16_t* temperature);
  HTS221_Error_et HTS221_Get_Humidity(void *handle, uint16_t* value);
  HTS221_Error_et HTS221_Get_HumidityRaw(void *handle, int16_t* value);
  HTS221_Error_et HTS221_Get_TemperatureRaw(void *handle, int16_t* value);
  HTS221_Error_et HTS221_Get_Temperature(void *handle, int16_t* value);
  HTS221_Error_et HTS221_Get_DataStatus(void *handle, HTS221_BitStatus_et* humidity, HTS221_BitStatus_et* temperature);
  HTS221_Error_et HTS221_Activate(void *handle);
  HTS221_Error_et HTS221_DeActivate(void *handle);
  
  HTS221_Error_et HTS221_Set_AvgHT(void *handle, HTS221_Avgh_et avgh, HTS221_Avgt_et avgt);
  HTS221_Error_et HTS221_Set_AvgH(void *handle, HTS221_Avgh_et avgh);
  HTS221_Error_et HTS221_Set_AvgT(void *handle, HTS221_Avgt_et avgt);
  HTS221_Error_et HTS221_Get_AvgHT(void *handle, HTS221_Avgh_et* avgh, HTS221_Avgt_et* avgt);
  HTS221_Error_et HTS221_Set_BduMode(void *handle, HTS221_State_et status);
  HTS221_Error_et HTS221_Get_BduMode(void *handle, HTS221_State_et* status);
  HTS221_Error_et HTS221_Set_PowerDownMode(void *handle, HTS221_BitStatus_et status);
  HTS221_Error_et HTS221_Get_PowerDownMode(void *handle, HTS221_BitStatus_et* status);
  HTS221_Error_et HTS221_Set_Odr(void *handle, HTS221_Odr_et odr);
  HTS221_Error_et HTS221_Get_Odr(void *handle, HTS221_Odr_et* odr);
  HTS221_Error_et HTS221_MemoryBoot(void *handle);
  HTS221_Error_et HTS221_Set_HeaterState(void *handle, HTS221_State_et status);
  HTS221_Error_et HTS221_Get_HeaterState(void *handle, HTS221_State_et* status);
  HTS221_Error_et HTS221_StartOneShotMeasurement(void *handle);
  HTS221_Error_et HTS221_Set_IrqActiveLevel(void *handle, HTS221_DrdyLevel_et status);
  HTS221_Error_et HTS221_Get_IrqActiveLevel(void *handle, HTS221_DrdyLevel_et* status);
  HTS221_Error_et HTS221_Set_IrqOutputType(void *handle, HTS221_OutputType_et value);
  HTS221_Error_et HTS221_Get_IrqOutputType(void *handle, HTS221_OutputType_et* value);
  HTS221_Error_et HTS221_Set_IrqEnable(void *handle, HTS221_State_et status);
  HTS221_Error_et HTS221_Get_IrqEnable(void *handle, HTS221_State_et* status);
  
  /**
  * @}
  */
  
  /**
  * @}
  */
  
  /**
  * @}
  */
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* __HTS221_DRIVER__H */
  
  /******************* (C) COPYRIGHT 2013 STMicroelectronics *****END OF FILE****/
  