Nordic stack and drivers for the mbed BLE API
Dependents: Sensen-classic-v8-IAQ_copy_4
Fork of nRF51822 by
TARGET_MCU_NRF51822/sdk/source/libraries/bootloader_dfu/dfu_app_handler.c
- Committer:
- amithy
- Date:
- 2017-11-10
- Revision:
- 639:7f459d371b75
- Parent:
- 638:c90ae1400bf2
File content as of revision 639:7f459d371b75:
/* * Copyright (c) Nordic Semiconductor ASA * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, this * list of conditions and the following disclaimer in the documentation and/or * other materials provided with the distribution. * * 3. Neither the name of Nordic Semiconductor ASA nor the names of other * contributors to this software may be used to endorse or promote products * derived from this software without specific prior written permission. * * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #include "dfu_app_handler.h" #include <string.h> #include "bootloader_util.h" #include "nrf.h" #include "nrf_sdm.h" #include "ble_gatt.h" #include "ble_gatts.h" #include "app_error.h" #include "dfu_ble_svc.h" #include "device_manager.h" #include "nrf_delay.h" #define IRQ_ENABLED 0x01 /**< Field that identifies if an interrupt is enabled. */ #define MAX_NUMBER_INTERRUPTS 32 /**< Maximum number of interrupts available. */ static void dfu_app_reset_prepare(void); /**< Forward declaration of default reset handler. */ static dfu_app_reset_prepare_t m_reset_prepare = dfu_app_reset_prepare; /**< Callback function to application to prepare for system reset. Allows application to clean up service and memory before reset. */ static dfu_ble_peer_data_t m_peer_data; /**< Peer data to be used for data exchange when resetting into DFU mode. */ static dm_handle_t m_dm_handle; /**< Device Manager handle with instance IDs of current BLE connection. */ /**@brief Function for reset_prepare handler if the application has not registered a handler. */ static void dfu_app_reset_prepare(void) { // Reset prepare should be handled by application. // This function can be extended to include default handling if application does not implement // own handler. } /**@brief Function for disabling all interrupts before jumping from bootloader to application. */ static void interrupts_disable(void) { uint32_t interrupt_setting_mask; uint32_t irq; // Fetch the current interrupt settings. interrupt_setting_mask = NVIC->ISER[0]; // Loop from interrupt 0 for disabling of all interrupts. for (irq = 0; irq < MAX_NUMBER_INTERRUPTS; irq++) { if (interrupt_setting_mask & (IRQ_ENABLED << irq)) { // The interrupt was enabled, hence disable it. NVIC_DisableIRQ((IRQn_Type)irq); } } } /**@brief Function for providing peer information to DFU for re-establishing a bonded connection in * DFU mode. * * @param[in] conn_handle Connection handle for the connection requesting DFU mode. */ static void dfu_app_peer_data_set(uint16_t conn_handle) { uint32_t err_code; dm_sec_keyset_t key_set; uint32_t app_context_data = 0; dm_application_context_t app_context; /** [DFU bond sharing] */ err_code = dm_handle_get(conn_handle, &m_dm_handle); if (err_code == NRF_SUCCESS) { err_code = dm_distributed_keys_get(&m_dm_handle, &key_set); if (err_code == NRF_SUCCESS) { APP_ERROR_CHECK(err_code); m_peer_data.addr = key_set.keys_central.p_id_key->id_addr_info; m_peer_data.irk = key_set.keys_central.p_id_key->id_info; m_peer_data.enc_key.enc_info = key_set.keys_periph.enc_key.p_enc_key->enc_info; m_peer_data.enc_key.master_id = key_set.keys_periph.enc_key.p_enc_key->master_id; err_code = dfu_ble_svc_peer_data_set(&m_peer_data); APP_ERROR_CHECK(err_code); app_context_data = (DFU_APP_ATT_TABLE_CHANGED << DFU_APP_ATT_TABLE_POS); app_context.len = sizeof(app_context_data); app_context.p_data = (uint8_t *)&app_context_data; app_context.flags = 0; err_code = dm_application_context_set(&m_dm_handle, &app_context); APP_ERROR_CHECK(err_code); } else { // Keys were not available, thus we have a non-encrypted connection. err_code = dm_peer_addr_get(&m_dm_handle, &m_peer_data.addr); APP_ERROR_CHECK(err_code); err_code = dfu_ble_svc_peer_data_set(&m_peer_data); APP_ERROR_CHECK(err_code); } } /** [DFU bond sharing] */ } /**@brief Function for preparing the reset, disabling SoftDevice, and jumping to the bootloader. * * @param[in] conn_handle Connection handle for peer requesting to enter DFU mode. */ static void bootloader_start(uint16_t conn_handle) { uint32_t err_code; uint16_t sys_serv_attr_len = sizeof(m_peer_data.sys_serv_attr); err_code = sd_ble_gatts_sys_attr_get(conn_handle, m_peer_data.sys_serv_attr, &sys_serv_attr_len, BLE_GATTS_SYS_ATTR_FLAG_SYS_SRVCS); if (err_code != NRF_SUCCESS) { // Any error at this stage means the system service attributes could not be fetched. // This means the service changed indication cannot be sent in DFU mode, but connection // is still possible to establish. } m_reset_prepare(); err_code = sd_power_gpregret_set(BOOTLOADER_DFU_START); APP_ERROR_CHECK(err_code); err_code = sd_softdevice_disable(); APP_ERROR_CHECK(err_code); err_code = sd_softdevice_vector_table_base_set(NRF_UICR->BOOTLOADERADDR); APP_ERROR_CHECK(err_code); dfu_app_peer_data_set(conn_handle); NVIC_ClearPendingIRQ(SWI2_IRQn); interrupts_disable(); bootloader_util_app_start(NRF_UICR->BOOTLOADERADDR); } void dfu_app_on_dfu_evt(ble_dfu_t * p_dfu, ble_dfu_evt_t * p_evt) { switch (p_evt->ble_dfu_evt_type) { case BLE_DFU_START: // Starting the bootloader - will cause reset. bootloader_start(p_dfu->conn_handle); break; default: { // Unsupported event received from DFU Service. // Send back BLE_DFU_RESP_VAL_NOT_SUPPORTED message to peer. uint32_t err_code = ble_dfu_response_send(p_dfu, BLE_DFU_START_PROCEDURE, BLE_DFU_RESP_VAL_NOT_SUPPORTED); APP_ERROR_CHECK(err_code); } break; } } void dfu_app_reset_prepare_set(dfu_app_reset_prepare_t reset_prepare_func) { m_reset_prepare = reset_prepare_func; } void dfu_app_dm_appl_instance_set(dm_application_instance_t app_instance) { uint32_t err_code; err_code = dm_application_instance_set(&app_instance, &m_dm_handle); APP_ERROR_CHECK(err_code); }