81 lines
3.6 KiB
C
81 lines
3.6 KiB
C
/* Copyright (c) 2014 Nordic Semiconductor. All Rights Reserved.
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*
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* The information contained herein is property of Nordic Semiconductor ASA.
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* Terms and conditions of usage are described in detail in NORDIC
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* SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
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*
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* Licensees are granted free, non-transferable use of the information. NO
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* WARRANTY of ANY KIND is provided. This heading must NOT be removed from
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* the file.
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*
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*/
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/** @file
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*
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* @defgroup nrf_dfu_ble_svc DFU BLE SVC
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* @{
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*
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* @brief DFU BLE SVC in bootloader. The DFU BLE SuperVisor Calls allow an application to execute
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* functions in the installed bootloader.
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*
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* @details This module implements handling of SuperVisor Calls in the bootloader.
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* SuperVisor Calls allow for an application to execute calls into the bootloader.
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* Currently, it is possible to exchange bonding information (like keys) from the
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* application to a bootloader supporting DFU OTA using BLE, so the update process can be
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* done through an already existing bond.
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*
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* @note The application must make sure that all SuperVisor Calls (SVC) are forwarded to the
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* bootloader to ensure correct behavior. Forwarding of SVCs to the bootloader is
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* done using the SoftDevice SVC @ref sd_softdevice_vector_table_base_set with the value
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* present in @c NRF_UICR->NRFFW[0].
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*/
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#ifndef DFU_BLE_SVC_H__
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#define DFU_BLE_SVC_H__
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#include "nrf_svc.h"
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#include <stdint.h>
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#include "ble_gap.h"
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#include "nrf.h"
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#include "nrf_soc.h"
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#include "nrf_error_sdm.h"
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#define BOOTLOADER_SVC_BASE 0x0 /**< The number of the lowest SVC number reserved for the bootloader. */
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#define SYSTEM_SERVICE_ATT_SIZE 8 /**< Size of the system service attribute length including CRC-16 at the end. */
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/**@brief The SVC numbers used by the SVC functions in the SoC library. */
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enum BOOTLOADER_SVCS
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{
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DFU_BLE_SVC_PEER_DATA_SET = BOOTLOADER_SVC_BASE, /**< SVC number for the setting of peer data call. */
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BOOTLOADER_SVC_LAST
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};
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/**@brief DFU Peer data structure.
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*
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* @details This structure contains peer data needed for connection to a bonded device during DFU.
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* The peer data must be provided by the application to the bootloader during buttonless
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* update. See @ref dfu_ble_svc_peer_data_set. It contains bond information about the
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* desired DFU peer.
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*/
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typedef struct
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{
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ble_gap_addr_t addr; /**< BLE GAP address of the device that initiated the DFU process. */
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ble_gap_irk_t irk; /**< IRK of the device that initiated the DFU process if this device uses Private Resolvable Addresses. */
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ble_gap_enc_key_t enc_key; /**< Encryption key structure containing encrypted diversifier and LTK for re-establishing the bond. */
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uint8_t sys_serv_attr[SYSTEM_SERVICE_ATT_SIZE]; /**< System service attributes for restoring of Service Changed Indication setting in DFU mode. */
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} dfu_ble_peer_data_t;
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/**@brief SVC Function for setting peer data containing address, IRK, and LTK to establish bonded
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* connection in DFU mode.
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*
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* @param[in] p_peer_data Pointer to the peer data containing keys for the connection.
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*
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* @retval NRF_ERROR_NULL If a NULL pointer was provided as argument.
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* @retval NRF_SUCCESS If the function completed successfully.
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*/
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SVCALL(DFU_BLE_SVC_PEER_DATA_SET, uint32_t, dfu_ble_svc_peer_data_set(dfu_ble_peer_data_t * p_peer_data));
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#endif // DFU_BLE_SVC_H__
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/** @} */
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