BLE FOTA APP
It doesn't work with the default FOTA bootloader. It use NVIC_SystemReset() to enter a bootloader.
nRF51822/nordic/nrf-sdk/app_common/app_fifo.h@1:a607cd9655d7, 2014-10-10 (annotated)
- Committer:
- yihui
- Date:
- Fri Oct 10 03:36:28 2014 +0000
- Revision:
- 1:a607cd9655d7
use NVIC_SystemReset() to run bootloader
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
yihui | 1:a607cd9655d7 | 1 | /* Copyright (c) 2013 Nordic Semiconductor. All Rights Reserved. |
yihui | 1:a607cd9655d7 | 2 | * |
yihui | 1:a607cd9655d7 | 3 | * The information contained herein is property of Nordic Semiconductor ASA. |
yihui | 1:a607cd9655d7 | 4 | * Terms and conditions of usage are described in detail in NORDIC |
yihui | 1:a607cd9655d7 | 5 | * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT. |
yihui | 1:a607cd9655d7 | 6 | * |
yihui | 1:a607cd9655d7 | 7 | * Licensees are granted free, non-transferable use of the information. NO |
yihui | 1:a607cd9655d7 | 8 | * WARRANTY of ANY KIND is provided. This heading must NOT be removed from |
yihui | 1:a607cd9655d7 | 9 | * the file. |
yihui | 1:a607cd9655d7 | 10 | * |
yihui | 1:a607cd9655d7 | 11 | */ |
yihui | 1:a607cd9655d7 | 12 | |
yihui | 1:a607cd9655d7 | 13 | /**@file |
yihui | 1:a607cd9655d7 | 14 | * |
yihui | 1:a607cd9655d7 | 15 | * @defgroup app_fifo FIFO implementation |
yihui | 1:a607cd9655d7 | 16 | * @{ |
yihui | 1:a607cd9655d7 | 17 | * @ingroup app_common |
yihui | 1:a607cd9655d7 | 18 | * |
yihui | 1:a607cd9655d7 | 19 | * @brief FIFO implementation. |
yihui | 1:a607cd9655d7 | 20 | */ |
yihui | 1:a607cd9655d7 | 21 | |
yihui | 1:a607cd9655d7 | 22 | #ifndef APP_FIFO_H__ |
yihui | 1:a607cd9655d7 | 23 | #define APP_FIFO_H__ |
yihui | 1:a607cd9655d7 | 24 | |
yihui | 1:a607cd9655d7 | 25 | #include <stdint.h> |
yihui | 1:a607cd9655d7 | 26 | #include <stdlib.h> |
yihui | 1:a607cd9655d7 | 27 | #include "nrf_error.h" |
yihui | 1:a607cd9655d7 | 28 | |
yihui | 1:a607cd9655d7 | 29 | /**@brief A FIFO instance structure. Keeps track of which bytes to read and write next. |
yihui | 1:a607cd9655d7 | 30 | * Also it keeps the information about which memory is allocated for the buffer |
yihui | 1:a607cd9655d7 | 31 | * and its size. This needs to be initialized by app_fifo_init() before use. |
yihui | 1:a607cd9655d7 | 32 | */ |
yihui | 1:a607cd9655d7 | 33 | typedef struct |
yihui | 1:a607cd9655d7 | 34 | { |
yihui | 1:a607cd9655d7 | 35 | uint8_t * p_buf; /**< Pointer to FIFO buffer memory. */ |
yihui | 1:a607cd9655d7 | 36 | uint16_t buf_size_mask; /**< Read/write index mask. Also used for size checking. */ |
yihui | 1:a607cd9655d7 | 37 | volatile uint32_t read_pos; /**< Next read position in the FIFO buffer. */ |
yihui | 1:a607cd9655d7 | 38 | volatile uint32_t write_pos; /**< Next write position in the FIFO buffer. */ |
yihui | 1:a607cd9655d7 | 39 | } app_fifo_t; |
yihui | 1:a607cd9655d7 | 40 | |
yihui | 1:a607cd9655d7 | 41 | /**@brief Function for initializing the FIFO. |
yihui | 1:a607cd9655d7 | 42 | * |
yihui | 1:a607cd9655d7 | 43 | * @param[out] p_fifo FIFO object. |
yihui | 1:a607cd9655d7 | 44 | * @param[in] p_buf FIFO buffer for storing data. The buffer size has to be a power of two. |
yihui | 1:a607cd9655d7 | 45 | * @param[in] buf_size Size of the FIFO buffer provided, has to be a power of 2. |
yihui | 1:a607cd9655d7 | 46 | * |
yihui | 1:a607cd9655d7 | 47 | * @retval NRF_SUCCESS If initialization was successful. |
yihui | 1:a607cd9655d7 | 48 | * @retval NRF_ERROR_NULL If a NULL pointer is provided as buffer. |
yihui | 1:a607cd9655d7 | 49 | * @retval NRF_ERROR_INVALID_LENGTH If size of buffer provided is not a power of two. |
yihui | 1:a607cd9655d7 | 50 | */ |
yihui | 1:a607cd9655d7 | 51 | uint32_t app_fifo_init(app_fifo_t * p_fifo, uint8_t * p_buf, uint16_t buf_size); |
yihui | 1:a607cd9655d7 | 52 | |
yihui | 1:a607cd9655d7 | 53 | /**@brief Function for adding an element to the FIFO. |
yihui | 1:a607cd9655d7 | 54 | * |
yihui | 1:a607cd9655d7 | 55 | * @param[in] p_fifo Pointer to the FIFO. |
yihui | 1:a607cd9655d7 | 56 | * @param[in] byte Data byte to add to the FIFO. |
yihui | 1:a607cd9655d7 | 57 | * |
yihui | 1:a607cd9655d7 | 58 | * @retval NRF_SUCCESS If an element has been successfully added to the FIFO. |
yihui | 1:a607cd9655d7 | 59 | * @retval NRF_ERROR_NO_MEM If the FIFO is full. |
yihui | 1:a607cd9655d7 | 60 | */ |
yihui | 1:a607cd9655d7 | 61 | uint32_t app_fifo_put(app_fifo_t * p_fifo, uint8_t byte); |
yihui | 1:a607cd9655d7 | 62 | |
yihui | 1:a607cd9655d7 | 63 | /**@brief Function for getting the next element from the FIFO. |
yihui | 1:a607cd9655d7 | 64 | * |
yihui | 1:a607cd9655d7 | 65 | * @param[in] p_fifo Pointer to the FIFO. |
yihui | 1:a607cd9655d7 | 66 | * @param[out] p_byte Byte fetched from the FIFO. |
yihui | 1:a607cd9655d7 | 67 | * |
yihui | 1:a607cd9655d7 | 68 | * @retval NRF_SUCCESS If an element was returned. |
yihui | 1:a607cd9655d7 | 69 | * @retval NRF_ERROR_NOT_FOUND If there is no more elements in the queue. |
yihui | 1:a607cd9655d7 | 70 | */ |
yihui | 1:a607cd9655d7 | 71 | uint32_t app_fifo_get(app_fifo_t * p_fifo, uint8_t * p_byte); |
yihui | 1:a607cd9655d7 | 72 | |
yihui | 1:a607cd9655d7 | 73 | /**@brief Function for flushing the FIFO. |
yihui | 1:a607cd9655d7 | 74 | * |
yihui | 1:a607cd9655d7 | 75 | * @param[in] p_fifo Pointer to the FIFO. |
yihui | 1:a607cd9655d7 | 76 | * |
yihui | 1:a607cd9655d7 | 77 | * @retval NRF_SUCCESS If the FIFO flushed successfully. |
yihui | 1:a607cd9655d7 | 78 | */ |
yihui | 1:a607cd9655d7 | 79 | uint32_t app_fifo_flush(app_fifo_t * p_fifo); |
yihui | 1:a607cd9655d7 | 80 | |
yihui | 1:a607cd9655d7 | 81 | #endif // APP_FIFO_H__ |
yihui | 1:a607cd9655d7 | 82 | |
yihui | 1:a607cd9655d7 | 83 | /** @} */ |