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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 | /* * Copyright (c) 2015 Intel Corporation. * * SPDX-License-Identifier: Apache-2.0 */ #ifndef _RTC_H_ #define _RTC_H_ #include <zephyr/types.h> #include <device.h> #include <misc/util.h> #ifdef __cplusplus extern "C" { #endif enum clk_rtc_div { RTC_CLK_DIV_1, RTC_CLK_DIV_2, RTC_CLK_DIV_4, RTC_CLK_DIV_8, RTC_CLK_DIV_16, RTC_CLK_DIV_32, RTC_CLK_DIV_64, RTC_CLK_DIV_128, RTC_CLK_DIV_256, RTC_CLK_DIV_512, RTC_CLK_DIV_1024, RTC_CLK_DIV_2048, RTC_CLK_DIV_4096, RTC_CLK_DIV_8192, RTC_CLK_DIV_16384, RTC_CLK_DIV_32768 }; #define RTC_DIVIDER RTC_CLK_DIV_1 /** Number of RTC ticks in a second */ #define RTC_ALARM_SECOND (32768 / (1UL << RTC_DIVIDER)) /** Number of RTC ticks in a minute */ #define RTC_ALARM_MINUTE (RTC_ALARM_SECOND * 60) /** Number of RTC ticks in an hour */ #define RTC_ALARM_HOUR (RTC_ALARM_MINUTE * 60) /** Number of RTC ticks in a day */ #define RTC_ALARM_DAY (RTC_ALARM_HOUR * 24) struct rtc_config { u32_t init_val; /*!< enable/disable alarm */ u8_t alarm_enable; /*!< initial configuration value for the 32bit RTC alarm value */ u32_t alarm_val; /*!< Pointer to function to call when alarm value * matches current RTC value */ void (*cb_fn)(struct device *dev); }; typedef void (*rtc_api_enable)(struct device *dev); typedef void (*rtc_api_disable)(struct device *dev); typedef int (*rtc_api_set_config)(struct device *dev, struct rtc_config *config); typedef int (*rtc_api_set_alarm)(struct device *dev, const u32_t alarm_val); typedef u32_t (*rtc_api_read)(struct device *dev); typedef u32_t (*rtc_api_get_pending_int)(struct device *dev); struct rtc_driver_api { rtc_api_enable enable; rtc_api_disable disable; rtc_api_read read; rtc_api_set_config set_config; rtc_api_set_alarm set_alarm; rtc_api_get_pending_int get_pending_int; }; __syscall u32_t rtc_read(struct device *dev); static inline u32_t _impl_rtc_read(struct device *dev) { const struct rtc_driver_api *api = dev->driver_api; return api->read(dev); } __syscall void rtc_enable(struct device *dev); static inline void _impl_rtc_enable(struct device *dev) { const struct rtc_driver_api *api = dev->driver_api; api->enable(dev); } __syscall void rtc_disable(struct device *dev); static inline void _impl_rtc_disable(struct device *dev) { const struct rtc_driver_api *api = dev->driver_api; api->disable(dev); } static inline int rtc_set_config(struct device *dev, struct rtc_config *cfg) { const struct rtc_driver_api *api = dev->driver_api; return api->set_config(dev, cfg); } __syscall int rtc_set_alarm(struct device *dev, const u32_t alarm_val); static inline int _impl_rtc_set_alarm(struct device *dev, const u32_t alarm_val) { const struct rtc_driver_api *api = dev->driver_api; return api->set_alarm(dev, alarm_val); } /** * @brief Function to get pending interrupts * * The purpose of this function is to return the interrupt * status register for the device. * This is especially useful when waking up from * low power states to check the wake up source. * * @param dev Pointer to the device structure for the driver instance. * * @retval 1 if the rtc interrupt is pending. * @retval 0 if no rtc interrupt is pending. */ __syscall int rtc_get_pending_int(struct device *dev); static inline int _impl_rtc_get_pending_int(struct device *dev) { struct rtc_driver_api *api; api = (struct rtc_driver_api *)dev->driver_api; return api->get_pending_int(dev); } #ifdef __cplusplus } #endif #include <syscalls/rtc.h> #endif |