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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/modules/nrfx/hal/nrf_comp.h')
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diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/modules/nrfx/hal/nrf_comp.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/modules/nrfx/hal/nrf_comp.h new file mode 100644 index 0000000..0f8b108 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/modules/nrfx/hal/nrf_comp.h @@ -0,0 +1,509 @@ +/** + * Copyright (c) 2015 - 2018, Nordic Semiconductor ASA + * + * All rights reserved. + * + * 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, except as embedded into a Nordic + * Semiconductor ASA integrated circuit in a product or a software update for + * such product, 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 Nordic Semiconductor ASA nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * 4. This software, with or without modification, must only be used with a + * Nordic Semiconductor ASA integrated circuit. + * + * 5. Any software provided in binary form under this license must not be reverse + * engineered, decompiled, modified and/or disassembled. + * + * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA 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 NRF_COMP_H_ +#define NRF_COMP_H_ + +#include <nrfx.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @defgroup nrf_comp_hal COMP HAL + * @{ + * @ingroup nrf_comp + * @brief Hardware access layer for managing the Comparator (COMP) peripheral. + */ + +/** + * @enum nrf_comp_input_t + * @brief COMP analog pin selection. + */ +typedef enum +{ + NRF_COMP_INPUT_0 = COMP_PSEL_PSEL_AnalogInput0, /*!< AIN0 selected as analog input. */ + NRF_COMP_INPUT_1 = COMP_PSEL_PSEL_AnalogInput1, /*!< AIN1 selected as analog input. */ + NRF_COMP_INPUT_2 = COMP_PSEL_PSEL_AnalogInput2, /*!< AIN2 selected as analog input. */ + NRF_COMP_INPUT_3 = COMP_PSEL_PSEL_AnalogInput3, /*!< AIN3 selected as analog input. */ + NRF_COMP_INPUT_4 = COMP_PSEL_PSEL_AnalogInput4, /*!< AIN4 selected as analog input. */ + NRF_COMP_INPUT_5 = COMP_PSEL_PSEL_AnalogInput5, /*!< AIN5 selected as analog input. */ + NRF_COMP_INPUT_6 = COMP_PSEL_PSEL_AnalogInput6, /*!< AIN6 selected as analog input. */ +#if defined (COMP_PSEL_PSEL_AnalogInput7) || defined (__NRFX_DOXYGEN__) + NRF_COMP_INPUT_7 = COMP_PSEL_PSEL_AnalogInput7, /*!< AIN7 selected as analog input. */ +#endif +#if defined (COMP_PSEL_PSEL_VddDiv2) || defined (__NRFX_DOXYGEN__) + NRF_COMP_VDD_DIV2 = COMP_PSEL_PSEL_VddDiv2, /*!< VDD/2 selected as analog input. */ +#endif +}nrf_comp_input_t; + +/** + * @enum nrf_comp_ref_t + * @brief COMP reference selection. + */ +typedef enum +{ + NRF_COMP_REF_Int1V2 = COMP_REFSEL_REFSEL_Int1V2, /*!< VREF = internal 1.2 V reference (VDD >= 1.7 V). */ + NRF_COMP_REF_Int1V8 = COMP_REFSEL_REFSEL_Int1V8, /*!< VREF = internal 1.8 V reference (VDD >= VREF + 0.2 V). */ + NRF_COMP_REF_Int2V4 = COMP_REFSEL_REFSEL_Int2V4, /*!< VREF = internal 2.4 V reference (VDD >= VREF + 0.2 V). */ + NRF_COMP_REF_VDD = COMP_REFSEL_REFSEL_VDD, /*!< VREF = VDD. */ + NRF_COMP_REF_ARef = COMP_REFSEL_REFSEL_ARef /*!< VREF = AREF (VDD >= VREF >= AREFMIN). */ +}nrf_comp_ref_t; + +/** + * @enum nrf_comp_ext_ref_t + * @brief COMP external analog reference selection. + */ +typedef enum +{ + NRF_COMP_EXT_REF_0 = COMP_EXTREFSEL_EXTREFSEL_AnalogReference0, /*!< Use AIN0 as external analog reference. */ + NRF_COMP_EXT_REF_1 = COMP_EXTREFSEL_EXTREFSEL_AnalogReference1 /*!< Use AIN1 as external analog reference. */ +}nrf_comp_ext_ref_t; + +/** + * @brief COMP THDOWN and THUP values that are used to calculate the threshold voltages VDOWN and VUP. + */ +typedef struct +{ + uint8_t th_down; /*!< THDOWN value. */ + uint8_t th_up; /*!< THUP value. */ +}nrf_comp_th_t; + +/** + * @enum nrf_comp_main_mode_t + * @brief COMP main operation mode. + */ +typedef enum +{ + NRF_COMP_MAIN_MODE_SE = COMP_MODE_MAIN_SE, /*!< Single ended mode. */ + NRF_COMP_MAIN_MODE_Diff = COMP_MODE_MAIN_Diff /*!< Differential mode. */ +}nrf_comp_main_mode_t; + +/** + * @enum nrf_comp_sp_mode_t + * @brief COMP speed and power mode. + */ +typedef enum +{ + NRF_COMP_SP_MODE_Low = COMP_MODE_SP_Low, /*!< Low power mode. */ + NRF_COMP_SP_MODE_Normal = COMP_MODE_SP_Normal, /*!< Normal mode. */ + NRF_COMP_SP_MODE_High = COMP_MODE_SP_High /*!< High speed mode. */ +}nrf_comp_sp_mode_t; + +/** + * @enum nrf_comp_hyst_t + * @brief COMP comparator hysteresis. + */ +typedef enum +{ + NRF_COMP_HYST_NoHyst = COMP_HYST_HYST_NoHyst, /*!< Comparator hysteresis disabled. */ + NRF_COMP_HYST_50mV = COMP_HYST_HYST_Hyst50mV /*!< Comparator hysteresis enabled. */ +}nrf_comp_hyst_t; + +#if defined (COMP_ISOURCE_ISOURCE_Msk) || defined (__NRFX_DOXYGEN__) +/** + * @brief COMP current source selection on analog input. + */ +typedef enum +{ + NRF_COMP_ISOURCE_Off = COMP_ISOURCE_ISOURCE_Off, /*!< Current source disabled. */ + NRF_COMP_ISOURCE_Ien2uA5 = COMP_ISOURCE_ISOURCE_Ien2mA5, /*!< Current source enabled (+/- 2.5 uA). */ + NRF_COMP_ISOURCE_Ien5uA = COMP_ISOURCE_ISOURCE_Ien5mA, /*!< Current source enabled (+/- 5 uA). */ + NRF_COMP_ISOURCE_Ien10uA = COMP_ISOURCE_ISOURCE_Ien10mA /*!< Current source enabled (+/- 10 uA). */ +}nrf_isource_t; +#endif + +/** + * @enum nrf_comp_task_t + * @brief COMP tasks. + */ +typedef enum +{ + /*lint -save -e30*/ + NRF_COMP_TASK_START = offsetof(NRF_COMP_Type, TASKS_START), /*!< COMP start sampling task. */ + NRF_COMP_TASK_STOP = offsetof(NRF_COMP_Type, TASKS_STOP), /*!< COMP stop sampling task. */ + NRF_COMP_TASK_SAMPLE = offsetof(NRF_COMP_Type, TASKS_SAMPLE) /*!< Sample comparator value. */ + /*lint -restore*/ +}nrf_comp_task_t; + +/** + * @enum nrf_comp_event_t + * @brief COMP events. + */ +typedef enum +{ + /*lint -save -e30*/ + NRF_COMP_EVENT_READY = offsetof(NRF_COMP_Type, EVENTS_READY), /*!< COMP is ready and output is valid. */ + NRF_COMP_EVENT_DOWN = offsetof(NRF_COMP_Type, EVENTS_DOWN), /*!< Input voltage crossed the threshold going down. */ + NRF_COMP_EVENT_UP = offsetof(NRF_COMP_Type, EVENTS_UP), /*!< Input voltage crossed the threshold going up. */ + NRF_COMP_EVENT_CROSS = offsetof(NRF_COMP_Type, EVENTS_CROSS) /*!< Input voltage crossed the threshold in any direction. */ + /*lint -restore*/ +}nrf_comp_event_t; + +/** + * @brief COMP reference configuration. + */ +typedef struct +{ + nrf_comp_ref_t reference; /*!< COMP reference selection. */ + nrf_comp_ext_ref_t external; /*!< COMP external analog reference selection. */ +}nrf_comp_ref_conf_t; + + +/** + * @brief Function for enabling the COMP peripheral. + */ +__STATIC_INLINE void nrf_comp_enable(void); + + +/** + * @brief Function for disabling the COMP peripheral. + */ + +__STATIC_INLINE void nrf_comp_disable(void); + +/** + * @brief Function for checking if the COMP peripheral is enabled. + * + * @retval true If the COMP peripheral is enabled. + * @retval false If the COMP peripheral is not enabled. + */ +__STATIC_INLINE bool nrf_comp_enable_check(void); + +/** + * @brief Function for setting the reference source. + * + * @param[in] reference COMP reference selection. + */ +__STATIC_INLINE void nrf_comp_ref_set(nrf_comp_ref_t reference); + + +/** + * @brief Function for setting the external analog reference source. + * + * @param[in] ext_ref COMP external analog reference selection. + */ +__STATIC_INLINE void nrf_comp_ext_ref_set(nrf_comp_ext_ref_t ext_ref); + + +/** + * @brief Function for setting threshold voltages. + * + * @param[in] threshold COMP VDOWN and VUP thresholds. + */ +__STATIC_INLINE void nrf_comp_th_set(nrf_comp_th_t threshold); + + +/** + * @brief Function for setting the main mode. + * + * @param[in] main_mode COMP main operation mode. + */ +__STATIC_INLINE void nrf_comp_main_mode_set(nrf_comp_main_mode_t main_mode); + + +/** + * @brief Function for setting the speed mode. + * + * @param[in] speed_mode COMP speed and power mode. + */ +__STATIC_INLINE void nrf_comp_speed_mode_set(nrf_comp_sp_mode_t speed_mode); + + +/** + * @brief Function for setting the hysteresis. + * + * @param[in] hyst COMP comparator hysteresis. + */ +__STATIC_INLINE void nrf_comp_hysteresis_set(nrf_comp_hyst_t hyst); + + +#if defined (COMP_ISOURCE_ISOURCE_Msk) || defined (__NRFX_DOXYGEN__) +/** + * @brief Function for setting the current source on the analog input. + * + * @param[in] isource COMP current source selection on analog input. + */ +__STATIC_INLINE void nrf_comp_isource_set(nrf_isource_t isource); +#endif + + +/** + * @brief Function for selecting the active input of the COMP. + * + * @param[in] input Input to be selected. + */ +__STATIC_INLINE void nrf_comp_input_select(nrf_comp_input_t input); + + +/** + * @brief Function for getting the last COMP compare result. + * + * @return The last compare result. If 0, then VIN+ < VIN-. If 1, then VIN+ > VIN-. + * + * @note If VIN+ == VIN-, the return value depends on the previous result. + */ +__STATIC_INLINE uint32_t nrf_comp_result_get(void); + + +/** + * @brief Function for enabling interrupts from COMP. + * + * @param[in] comp_int_mask Mask of interrupts to be enabled. + * + * @sa nrf_comp_int_enable_check() + */ +__STATIC_INLINE void nrf_comp_int_enable(uint32_t comp_int_mask); + +/** + * @brief Function for disabling interrupts from COMP. + * + * @param[in] comp_int_mask Mask of interrupts to be disabled. + * + * @sa nrf_comp_int_enable_check() + */ +__STATIC_INLINE void nrf_comp_int_disable(uint32_t comp_int_mask); + + +/** + * @brief Function for getting the enabled interrupts of COMP. + * + * @param[in] comp_int_mask Mask of interrupts to be checked. + * + * @retval true If any interrupts of the specified mask are enabled. + */ +__STATIC_INLINE bool nrf_comp_int_enable_check(uint32_t comp_int_mask); + + + +/** + * @brief Function for getting the address of a specific COMP task register. + * + * @param[in] comp_task COMP task. + * + * @return Address of the specified COMP task. + */ +__STATIC_INLINE uint32_t * nrf_comp_task_address_get(nrf_comp_task_t comp_task); + + +/** + * @brief Function for getting the address of a specific COMP event register. + * + * @param[in] comp_event COMP event. + * + * @return Address of the specified COMP event. + */ +__STATIC_INLINE uint32_t * nrf_comp_event_address_get(nrf_comp_event_t comp_event); + + +/** + * @brief Function for setting COMP shorts. + * + * @param[in] comp_short_mask COMP shorts by mask. + * + */ +__STATIC_INLINE void nrf_comp_shorts_enable(uint32_t comp_short_mask); + + +/** + * @brief Function for clearing COMP shorts by mask. + * + * @param[in] comp_short_mask COMP shorts to be cleared. + * + */ +__STATIC_INLINE void nrf_comp_shorts_disable(uint32_t comp_short_mask); + + +/** + * @brief Function for setting a specific COMP task. + * + * @param[in] comp_task COMP task to be set. + * + */ +__STATIC_INLINE void nrf_comp_task_trigger(nrf_comp_task_t comp_task); + + +/** + * @brief Function for clearing a specific COMP event. + * + * @param[in] comp_event COMP event to be cleared. + * + */ +__STATIC_INLINE void nrf_comp_event_clear(nrf_comp_event_t comp_event); + + +/** + * @brief Function for getting the state of a specific COMP event. + * + * @retval true If the specified COMP event is active. + * + */ +__STATIC_INLINE bool nrf_comp_event_check(nrf_comp_event_t comp_event); + +#ifndef SUPPRESS_INLINE_IMPLEMENTATION + +__STATIC_INLINE void nrf_comp_enable(void) +{ + NRF_COMP->ENABLE = (COMP_ENABLE_ENABLE_Enabled << COMP_ENABLE_ENABLE_Pos); +} + +__STATIC_INLINE void nrf_comp_disable(void) +{ + NRF_COMP->ENABLE = (COMP_ENABLE_ENABLE_Disabled << COMP_ENABLE_ENABLE_Pos); +} + +__STATIC_INLINE bool nrf_comp_enable_check(void) +{ + return ((NRF_COMP->ENABLE) & COMP_ENABLE_ENABLE_Enabled); +} + +__STATIC_INLINE void nrf_comp_ref_set(nrf_comp_ref_t reference) +{ + NRF_COMP->REFSEL = (reference << COMP_REFSEL_REFSEL_Pos); +} + +__STATIC_INLINE void nrf_comp_ext_ref_set(nrf_comp_ext_ref_t ext_ref) +{ + NRF_COMP->EXTREFSEL = (ext_ref << COMP_EXTREFSEL_EXTREFSEL_Pos); +} + +__STATIC_INLINE void nrf_comp_th_set(nrf_comp_th_t threshold) +{ + NRF_COMP->TH = + ((threshold.th_down << COMP_TH_THDOWN_Pos) & COMP_TH_THDOWN_Msk) | + ((threshold.th_up << COMP_TH_THUP_Pos) & COMP_TH_THUP_Msk); +} + +__STATIC_INLINE void nrf_comp_main_mode_set(nrf_comp_main_mode_t main_mode) +{ + NRF_COMP->MODE |= (main_mode << COMP_MODE_MAIN_Pos); +} + +__STATIC_INLINE void nrf_comp_speed_mode_set(nrf_comp_sp_mode_t speed_mode) +{ + NRF_COMP->MODE |= (speed_mode << COMP_MODE_SP_Pos); +} + +__STATIC_INLINE void nrf_comp_hysteresis_set(nrf_comp_hyst_t hyst) +{ + NRF_COMP->HYST = (hyst << COMP_HYST_HYST_Pos) & COMP_HYST_HYST_Msk; +} + +#if defined (COMP_ISOURCE_ISOURCE_Msk) +__STATIC_INLINE void nrf_comp_isource_set(nrf_isource_t isource) +{ + NRF_COMP->ISOURCE = (isource << COMP_ISOURCE_ISOURCE_Pos) & COMP_ISOURCE_ISOURCE_Msk; +} +#endif + +__STATIC_INLINE void nrf_comp_input_select(nrf_comp_input_t input) +{ + NRF_COMP->PSEL = ((uint32_t)input << COMP_PSEL_PSEL_Pos); +} + +__STATIC_INLINE uint32_t nrf_comp_result_get(void) +{ + return (uint32_t)NRF_COMP->RESULT; +} + +__STATIC_INLINE void nrf_comp_int_enable(uint32_t comp_int_mask) +{ + NRF_COMP->INTENSET = comp_int_mask; +} + +__STATIC_INLINE void nrf_comp_int_disable(uint32_t comp_int_mask) +{ + NRF_COMP->INTENCLR = comp_int_mask; +} + +__STATIC_INLINE bool nrf_comp_int_enable_check(uint32_t comp_int_mask) +{ + return (NRF_COMP->INTENSET & comp_int_mask); // when read this register will return the value of INTEN. +} + +__STATIC_INLINE uint32_t * nrf_comp_task_address_get(nrf_comp_task_t comp_task) +{ + return (uint32_t *)((uint8_t *)NRF_COMP + (uint32_t)comp_task); +} + +__STATIC_INLINE uint32_t * nrf_comp_event_address_get(nrf_comp_event_t comp_event) +{ + return (uint32_t *)((uint8_t *)NRF_COMP + (uint32_t)comp_event); +} + +__STATIC_INLINE void nrf_comp_shorts_enable(uint32_t comp_short_mask) +{ + NRF_COMP->SHORTS |= comp_short_mask; +} + +__STATIC_INLINE void nrf_comp_shorts_disable(uint32_t comp_short_mask) +{ + NRF_COMP->SHORTS &= ~comp_short_mask; +} + +__STATIC_INLINE void nrf_comp_task_trigger(nrf_comp_task_t comp_task) +{ + *( (volatile uint32_t *)( (uint8_t *)NRF_COMP + comp_task) ) = 1; +} + +__STATIC_INLINE void nrf_comp_event_clear(nrf_comp_event_t comp_event) +{ + *( (volatile uint32_t *)( (uint8_t *)NRF_COMP + (uint32_t)comp_event) ) = 0; +#if __CORTEX_M == 0x04 + volatile uint32_t dummy = *((volatile uint32_t *)((uint8_t *)NRF_COMP + (uint32_t)comp_event)); + (void)dummy; +#endif +} + +__STATIC_INLINE bool nrf_comp_event_check(nrf_comp_event_t comp_event) +{ + return (bool) (*(volatile uint32_t *)( (uint8_t *)NRF_COMP + comp_event)); +} + +#endif // SUPPRESS_INLINE_IMPLEMENTATION + +/** @} */ + +#ifdef __cplusplus +} +#endif + +#endif // NRF_COMP_H_ |