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TARGET_SDT51822B/TOOLCHAIN_ARM_STD/nrf_drv_timer.h
- Committer:
- AnnaBridge
- Date:
- 2019-02-20
- Revision:
- 172:65be27845400
- Parent:
- 171:3a7713b1edbc
File content as of revision 172:65be27845400:
/* * Copyright (c) 2015 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 or object form under this license must not be reverse * engineered, decompiled, modified and/or disassembled. * * 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. * */ /**@file * @addtogroup nrf_timer Timer HAL and driver * @ingroup nrf_drivers * @brief Timer APIs. * @details The timer HAL provides basic APIs for accessing the registers * of the timer. The timer driver provides APIs on a higher level. * * @defgroup lib_driver_timer Timer driver * @{ * @ingroup nrf_timer * @brief Multi-instance timer driver. */ #ifndef NRF_DRV_TIMER_H__ #define NRF_DRV_TIMER_H__ #include "nordic_common.h" #include "nrf_drv_config.h" #include "nrf_timer.h" #include "sdk_errors.h" #include "nrf_assert.h" /** * @brief Timer driver instance data structure. */ typedef struct { NRF_TIMER_Type * p_reg; ///< Pointer to the structure with TIMER peripheral instance registers. uint8_t instance_id; ///< Driver instance index. uint8_t cc_channel_count; ///< Number of capture/compare channels. } nrf_drv_timer_t; /** * @brief Macro for creating a timer driver instance. */ #define NRF_DRV_TIMER_INSTANCE(id) \ { \ .p_reg = CONCAT_2(NRF_TIMER, id), \ .instance_id = CONCAT_3(TIMER, id, _INSTANCE_INDEX), \ .cc_channel_count = NRF_TIMER_CC_CHANNEL_COUNT(id), \ } /** * @brief Timer driver instance configuration structure. */ typedef struct { nrf_timer_frequency_t frequency; ///< Frequency. nrf_timer_mode_t mode; ///< Mode of operation. nrf_timer_bit_width_t bit_width; ///< Bit width. uint8_t interrupt_priority; ///< Interrupt priority. void * p_context; ///< Context passed to interrupt handler. } nrf_drv_timer_config_t; #define TIMER_CONFIG_FREQUENCY(id) CONCAT_3(TIMER, id, _CONFIG_FREQUENCY) #define TIMER_CONFIG_MODE(id) CONCAT_3(TIMER, id, _CONFIG_MODE) #define TIMER_CONFIG_BIT_WIDTH(id) CONCAT_3(TIMER, id, _CONFIG_BIT_WIDTH) #define TIMER_CONFIG_IRQ_PRIORITY(id) CONCAT_3(TIMER, id, _CONFIG_IRQ_PRIORITY) /** * @brief Timer driver instance default configuration. */ #define NRF_DRV_TIMER_DEFAULT_CONFIG(id) \ { \ .frequency = TIMER_CONFIG_FREQUENCY(id), \ .mode = (nrf_timer_mode_t)TIMER_CONFIG_MODE(id), \ .bit_width = (nrf_timer_bit_width_t)TIMER_CONFIG_BIT_WIDTH(id), \ .interrupt_priority = TIMER_CONFIG_IRQ_PRIORITY(id), \ .p_context = NULL \ } /** * @brief Timer driver event handler type. * * @param[in] event_type Timer event. * @param[in] p_context General purpose parameter set during initialization of * the timer. This parameter can be used to pass * additional information to the handler function, for * example, the timer ID. */ typedef void (* nrf_timer_event_handler_t)(nrf_timer_event_t event_type, void * p_context); /** * @brief Function for initializing the timer. * * @param[in] p_instance Timer instance. * @param[in] p_config Initial configuration. * If NULL, the default configuration is used. * @param[in] timer_event_handler Event handler provided by the user. * Must not be NULL. * * @retval NRF_SUCCESS If initialization was successful. * @retval NRF_ERROR_INVALID_STATE If the instance is already initialized. * @retval NRF_ERROR_INVALID_PARAM If no handler was provided. */ ret_code_t nrf_drv_timer_init(nrf_drv_timer_t const * const p_instance, nrf_drv_timer_config_t const * p_config, nrf_timer_event_handler_t timer_event_handler); /** * @brief Function for uninitializing the timer. * * @param[in] p_instance Timer instance. */ void nrf_drv_timer_uninit(nrf_drv_timer_t const * const p_instance); /** * @brief Function for turning on the timer. * * @param[in] p_instance Timer instance. */ void nrf_drv_timer_enable(nrf_drv_timer_t const * const p_instance); /** * @brief Function for turning off the timer. * * Note that the timer will allow to enter the lowest possible SYSTEM_ON state * only after this function is called. * * @param[in] p_instance Timer instance. */ void nrf_drv_timer_disable(nrf_drv_timer_t const * const p_instance); /** * @brief Function for pausing the timer. * * @param[in] p_instance Timer instance. */ void nrf_drv_timer_pause(nrf_drv_timer_t const * const p_instance); /** * @brief Function for resuming the timer. * * @param[in] p_instance Timer instance. */ void nrf_drv_timer_resume(nrf_drv_timer_t const * const p_instance); /** * @brief Function for clearing the timer. * * @param[in] p_instance Timer instance. */ void nrf_drv_timer_clear(nrf_drv_timer_t const * const p_instance); /** * @brief Function for incrementing the timer. * * @param[in] p_instance Timer instance. */ void nrf_drv_timer_increment(nrf_drv_timer_t const * const p_instance); /** * @brief Function for returning the address of a specific timer task. * * @param[in] p_instance Timer instance. * @param[in] timer_task Timer task. * * @return Task address. */ __STATIC_INLINE uint32_t nrf_drv_timer_task_address_get( nrf_drv_timer_t const * const p_instance, nrf_timer_task_t timer_task); /** * @brief Function for returning the address of a specific timer capture task. * * @param[in] p_instance Timer instance. * @param[in] channel Capture channel number. * * @return Task address. */ __STATIC_INLINE uint32_t nrf_drv_timer_capture_task_address_get( nrf_drv_timer_t const * const p_instance, uint32_t channel); /** * @brief Function for returning the address of a specific timer event. * * @param[in] p_instance Timer instance. * @param[in] timer_event Timer event. * * @return Event address. */ __STATIC_INLINE uint32_t nrf_drv_timer_event_address_get( nrf_drv_timer_t const * const p_instance, nrf_timer_event_t timer_event); /** * @brief Function for returning the address of a specific timer compare event. * * @param[in] p_instance Timer instance. * @param[in] channel Compare channel number. * * @return Event address. */ __STATIC_INLINE uint32_t nrf_drv_timer_compare_event_address_get( nrf_drv_timer_t const * const p_instance, uint32_t channel); /** * @brief Function for capturing the timer value. * * @param[in] p_instance Timer instance. * @param[in] cc_channel Capture channel number. * * @return Captured value. */ uint32_t nrf_drv_timer_capture(nrf_drv_timer_t const * const p_instance, nrf_timer_cc_channel_t cc_channel); /** * @brief Function for returning the capture value from a specific channel. * * Use this function to read channel values when PPI is used for capturing. * * @param[in] p_instance Timer instance. * @param[in] cc_channel Capture channel number. * * @return Captured value. */ __STATIC_INLINE uint32_t nrf_drv_timer_capture_get( nrf_drv_timer_t const * const p_instance, nrf_timer_cc_channel_t cc_channel); /** * @brief Function for setting the timer channel in compare mode. * * @param[in] p_instance Timer instance. * @param[in] cc_channel Compare channel number. * @param[in] cc_value Compare value. * @param[in] enable_int Enable or disable the interrupt for the compare channel. */ void nrf_drv_timer_compare(nrf_drv_timer_t const * const p_instance, nrf_timer_cc_channel_t cc_channel, uint32_t cc_value, bool enable_int); /** * @brief Function for setting the timer channel in extended compare mode. * * @param[in] p_instance Timer instance. * @param[in] cc_channel Compare channel number. * @param[in] cc_value Compare value. * @param[in] timer_short_mask Shortcut between the compare event on the channel * and the timer task (STOP or CLEAR). * @param[in] enable_int Enable or disable the interrupt for the compare * channel. */ void nrf_drv_timer_extended_compare(nrf_drv_timer_t const * const p_instance, nrf_timer_cc_channel_t cc_channel, uint32_t cc_value, nrf_timer_short_mask_t timer_short_mask, bool enable_int); /** * @brief Function for converting time in microseconds to timer ticks. * * @param[in] p_instance Timer instance. * @param[in] time_us Time in microseconds. * * @return Number of ticks. */ __STATIC_INLINE uint32_t nrf_drv_timer_us_to_ticks( nrf_drv_timer_t const * const p_instance, uint32_t time_us); /** * @brief Function for converting time in milliseconds to timer ticks. * * @param[in] p_instance Timer instance. * @param[in] time_ms Time in milliseconds. * * @return Number of ticks. */ __STATIC_INLINE uint32_t nrf_drv_timer_ms_to_ticks( nrf_drv_timer_t const * const p_instance, uint32_t time_ms); /** * @brief Function for enabling timer compare interrupt. * * @param[in] p_instance Timer instance. * @param[in] channel Compare channel. */ void nrf_drv_timer_compare_int_enable(nrf_drv_timer_t const * const p_instance, uint32_t channel); /** * @brief Function for disabling timer compare interrupt. * * @param[in] p_instance Timer instance. * @param[in] channel Compare channel. */ void nrf_drv_timer_compare_int_disable(nrf_drv_timer_t const * const p_instance, uint32_t channel); #ifndef SUPPRESS_INLINE_IMPLEMENTATION __STATIC_INLINE uint32_t nrf_drv_timer_task_address_get( nrf_drv_timer_t const * const p_instance, nrf_timer_task_t timer_task) { return (uint32_t)nrf_timer_task_address_get(p_instance->p_reg, timer_task); } __STATIC_INLINE uint32_t nrf_drv_timer_capture_task_address_get( nrf_drv_timer_t const * const p_instance, uint32_t channel) { ASSERT(channel < p_instance->cc_channel_count); return (uint32_t)nrf_timer_task_address_get(p_instance->p_reg, nrf_timer_capture_task_get(channel)); } __STATIC_INLINE uint32_t nrf_drv_timer_event_address_get( nrf_drv_timer_t const * const p_instance, nrf_timer_event_t timer_event) { return (uint32_t)nrf_timer_event_address_get(p_instance->p_reg, timer_event); } __STATIC_INLINE uint32_t nrf_drv_timer_compare_event_address_get( nrf_drv_timer_t const * const p_instance, uint32_t channel) { ASSERT(channel < p_instance->cc_channel_count); return (uint32_t)nrf_timer_event_address_get(p_instance->p_reg, nrf_timer_compare_event_get(channel)); } __STATIC_INLINE uint32_t nrf_drv_timer_capture_get( nrf_drv_timer_t const * const p_instance, nrf_timer_cc_channel_t cc_channel) { return nrf_timer_cc_read(p_instance->p_reg, cc_channel); } __STATIC_INLINE uint32_t nrf_drv_timer_us_to_ticks( nrf_drv_timer_t const * const p_instance, uint32_t timer_us) { return nrf_timer_us_to_ticks(timer_us, nrf_timer_frequency_get(p_instance->p_reg)); } __STATIC_INLINE uint32_t nrf_drv_timer_ms_to_ticks( nrf_drv_timer_t const * const p_instance, uint32_t timer_ms) { return nrf_timer_ms_to_ticks(timer_ms, nrf_timer_frequency_get(p_instance->p_reg)); } #endif // SUPPRESS_INLINE_IMPLEMENTATION #endif // NRF_DRV_TIMER_H__ /** @} */