Loading...
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 | /* * Copyright (c) 2015 Intel Corporation. * * SPDX-License-Identifier: Apache-2.0 */ #ifndef ZEPHYR_INCLUDE_AIO_COMPARATOR_H_ #define ZEPHYR_INCLUDE_AIO_COMPARATOR_H_ #ifdef __cplusplus extern "C" { #endif enum aio_cmp_ref { AIO_CMP_REF_A, /**< Use reference A. */ AIO_CMP_REF_B, /**< Use reference B. */ }; enum aio_cmp_polarity { AIO_CMP_POL_RISE, /**< Match on rising edge. */ AIO_CMP_POL_FALL, /**< Match on falling edge. */ }; typedef void (*aio_cmp_cb)(void *); typedef int (*aio_cmp_api_disable)(struct device *dev, u8_t index); typedef int (*aio_cmp_api_configure)(struct device *dev, u8_t index, enum aio_cmp_polarity polarity, enum aio_cmp_ref refsel, aio_cmp_cb cb, void *param); typedef u32_t (*aio_cmp_api_get_pending_int)(struct device *dev); struct aio_cmp_driver_api { aio_cmp_api_disable disable; aio_cmp_api_configure configure; aio_cmp_api_get_pending_int get_pending_int; }; /** * @brief Disable a particular comparator. * * This disables a comparator so that it no longer triggers interrupts. * * @param dev Device struct * @param index The index of the comparator to disable * * @return 0 if successful, otherwise failed. */ __syscall int aio_cmp_disable(struct device *dev, u8_t index); static inline int z_impl_aio_cmp_disable(struct device *dev, u8_t index) { const struct aio_cmp_driver_api *api = dev->driver_api; return api->disable(dev, index); } /** * @brief Configure and enable a particular comparator. * * This performs configuration and enable a comparator, so that it will * generate interrupts when conditions are met. * * @param dev Device struct * @param index The index of the comparator to disable * @param polarity Match polarity (e.g. rising or falling) * @param refsel Reference for trigger * @param cb Function callback (aio_cmp_cb) * @param param Parameters to be passed to callback * * @return 0 if successful, otherwise failed. */ static inline int aio_cmp_configure(struct device *dev, u8_t index, enum aio_cmp_polarity polarity, enum aio_cmp_ref refsel, aio_cmp_cb cb, void *param) { const struct aio_cmp_driver_api *api = dev->driver_api; return api->configure(dev, index, polarity, refsel, cb, param); } /** * @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 status != 0 if at least one aio_cmp interrupt is pending. * @retval 0 if no aio_cmp interrupt is pending. */ __syscall int aio_cmp_get_pending_int(struct device *dev); static inline int z_impl_aio_cmp_get_pending_int(struct device *dev) { struct aio_cmp_driver_api *api; api = (struct aio_cmp_driver_api *)dev->driver_api; return api->get_pending_int(dev); } #ifdef __cplusplus } #endif #include <syscalls/aio_comparator.h> #endif /* ZEPHYR_INCLUDE_AIO_COMPARATOR_H_ */ |