mirror of
https://github.com/zephyrproject-rtos/zephyr
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00156ad80a
Low frequency and high frequency clocks had separate devices while they are actually handled by single peripheral with single interrupt. The split was done probably because opaque subsys argument in the API was used for other purposes and there was no way to pass the information which clock should be controlled. Implementation changes some time ago and subsys parameter was no longer used. It now can be used to indicate which clock should be controlled. Change become necessary when nrf5340 is taken into account where there are more clocks and current approach would lead to create multiple devices - mess. Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
98 lines
2.9 KiB
C
98 lines
2.9 KiB
C
/*
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* Copyright (c) 2016 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_INCLUDE_DRIVERS_CLOCK_CONTROL_NRF_CLOCK_CONTROL_H_
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#define ZEPHYR_INCLUDE_DRIVERS_CLOCK_CONTROL_NRF_CLOCK_CONTROL_H_
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#include <device.h>
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#include <hal/nrf_clock.h>
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/** @brief Clocks handled by the CLOCK peripheral.
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*
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* Enum shall be used as a sys argument in clock_control API.
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*/
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enum clock_control_nrf_type {
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CLOCK_CONTROL_NRF_TYPE_HFCLK,
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CLOCK_CONTROL_NRF_TYPE_LFCLK,
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CLOCK_CONTROL_NRF_TYPE_COUNT
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};
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/* Define can be used with clock control API instead of enum directly to
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* increase code readability.
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*/
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#define CLOCK_CONTROL_NRF_SUBSYS_HF \
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((clock_control_subsys_t)CLOCK_CONTROL_NRF_TYPE_HFCLK)
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#define CLOCK_CONTROL_NRF_SUBSYS_LF \
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((clock_control_subsys_t)CLOCK_CONTROL_NRF_TYPE_LFCLK)
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/* Define 32KHz clock source */
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#ifdef CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC
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#define CLOCK_CONTROL_NRF_K32SRC NRF_CLOCK_LFCLK_RC
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#endif
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#ifdef CONFIG_CLOCK_CONTROL_NRF_K32SRC_XTAL
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#define CLOCK_CONTROL_NRF_K32SRC NRF_CLOCK_LFCLK_Xtal
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#endif
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#ifdef CONFIG_CLOCK_CONTROL_NRF_K32SRC_SYNTH
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#define CLOCK_CONTROL_NRF_K32SRC NRF_CLOCK_LFCLK_Synth
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#endif
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#ifdef CONFIG_CLOCK_CONTROL_NRF_K32SRC_EXT_LOW_SWING
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#define CLOCK_CONTROL_NRF_K32SRC NRF_CLOCK_LFCLK_Xtal_Low_Swing
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#endif
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#ifdef CONFIG_CLOCK_CONTROL_NRF_K32SRC_EXT_FULL_SWING
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#define CLOCK_CONTROL_NRF_K32SRC NRF_CLOCK_LFCLK_Xtal_Full_Swing
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#endif
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/* Define 32KHz clock accuracy */
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#ifdef CONFIG_CLOCK_CONTROL_NRF_K32SRC_500PPM
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#define CLOCK_CONTROL_NRF_K32SRC_ACCURACY 0
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#endif
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#ifdef CONFIG_CLOCK_CONTROL_NRF_K32SRC_250PPM
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#define CLOCK_CONTROL_NRF_K32SRC_ACCURACY 1
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#endif
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#ifdef CONFIG_CLOCK_CONTROL_NRF_K32SRC_150PPM
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#define CLOCK_CONTROL_NRF_K32SRC_ACCURACY 2
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#endif
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#ifdef CONFIG_CLOCK_CONTROL_NRF_K32SRC_100PPM
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#define CLOCK_CONTROL_NRF_K32SRC_ACCURACY 3
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#endif
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#ifdef CONFIG_CLOCK_CONTROL_NRF_K32SRC_75PPM
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#define CLOCK_CONTROL_NRF_K32SRC_ACCURACY 4
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#endif
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#ifdef CONFIG_CLOCK_CONTROL_NRF_K32SRC_50PPM
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#define CLOCK_CONTROL_NRF_K32SRC_ACCURACY 5
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#endif
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#ifdef CONFIG_CLOCK_CONTROL_NRF_K32SRC_30PPM
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#define CLOCK_CONTROL_NRF_K32SRC_ACCURACY 6
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#endif
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#ifdef CONFIG_CLOCK_CONTROL_NRF_K32SRC_20PPM
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#define CLOCK_CONTROL_NRF_K32SRC_ACCURACY 7
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#endif
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#if defined(CONFIG_USB_NRFX)
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void nrf5_power_usb_power_int_enable(bool enable);
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#endif
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/** @brief Force LF clock calibration. */
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void z_nrf_clock_calibration_force_start(void);
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/** @brief Return number of calibrations performed.
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*
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* Valid when @ref CONFIG_CLOCK_CONTROL_NRF_CALIBRATION_DEBUG is set.
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*
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* @return Number of calibrations or -1 if feature is disabled.
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*/
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int z_nrf_clock_calibration_count(void);
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/** @brief Return number of attempts when calibration was skipped.
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*
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* Valid when @ref CONFIG_CLOCK_CONTROL_NRF_CALIBRATION_DEBUG is set.
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*
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* @return Number of calibrations or -1 if feature is disabled.
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*/
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int z_nrf_clock_calibration_skips_count(void);
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#endif /* ZEPHYR_INCLUDE_DRIVERS_CLOCK_CONTROL_NRF_CLOCK_CONTROL_H_ */
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