300 lines
9.5 KiB
C
300 lines
9.5 KiB
C
/**
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* Copyright (c) 2017 - 2020, Nordic Semiconductor ASA
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <stdint.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include "nrf_dfu_ble_svci_bond_sharing.h"
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#include "nordic_common.h"
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#include "nrf_error.h"
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#include "ble_dfu.h"
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#include "nrf_log.h"
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#include "nrf_sdh_soc.h"
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#if (!NRF_DFU_BLE_BUTTONLESS_SUPPORTS_BONDS)
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#define NRF_DFU_ADV_NAME_MAX_LENGTH (20)
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void ble_dfu_buttonless_on_sys_evt(uint32_t, void * );
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uint32_t nrf_dfu_svci_vector_table_set(void);
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uint32_t nrf_dfu_svci_vector_table_unset(void);
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/**@brief Define functions for async interface to set new advertisement name for DFU mode. */
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NRF_SVCI_ASYNC_FUNC_DEFINE(NRF_DFU_SVCI_SET_ADV_NAME, nrf_dfu_set_adv_name, nrf_dfu_adv_name_t);
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// Register SoC observer for the Buttonless Secure DFU service
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NRF_SDH_SOC_OBSERVER(m_dfu_buttonless_soc_obs, BLE_DFU_SOC_OBSERVER_PRIO, ble_dfu_buttonless_on_sys_evt, NULL);
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ble_dfu_buttonless_t * mp_dfu = NULL;
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static nrf_dfu_adv_name_t m_adv_name;
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/**@brief Function for setting an advertisement name.
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*
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* @param[in] adv_name The new advertisement name.
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*
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* @retval NRF_SUCCESS Advertisement name was successfully set.
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* @retval DFU_RSP_BUSY Advertisement name was not set because of an ongoing operation.
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* @retval Any other errors from the SVCI interface call.
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*/
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static uint32_t set_adv_name(nrf_dfu_adv_name_t * p_adv_name)
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{
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uint32_t err_code;
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if (mp_dfu->is_waiting_for_svci)
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{
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return DFU_RSP_BUSY;
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}
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err_code = nrf_dfu_set_adv_name(p_adv_name);
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if (err_code == NRF_SUCCESS)
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{
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// The request was accepted.
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mp_dfu->is_waiting_for_svci = true;
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}
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else if (err_code == NRF_ERROR_FORBIDDEN)
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{
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NRF_LOG_ERROR("The bootloader has write protected its settings page. This prohibits setting the advertising name. "\
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"The bootloader must be compiled with NRF_BL_SETTINGS_PAGE_PROTECT=0 to allow setting the advertising name.");
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}
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return err_code;
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}
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/**@brief Function for entering the bootloader.
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*/
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static uint32_t enter_bootloader()
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{
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uint32_t err_code;
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if (mp_dfu->is_waiting_for_svci)
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{
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// We have an ongoing async operation. Entering bootloader mode is not possible at this time.
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err_code = ble_dfu_buttonless_resp_send(DFU_OP_ENTER_BOOTLOADER, DFU_RSP_BUSY);
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if (err_code != NRF_SUCCESS)
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{
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mp_dfu->evt_handler(BLE_DFU_EVT_RESPONSE_SEND_ERROR);
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}
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return NRF_SUCCESS;
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}
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// Set the flag indicating that we expect DFU mode.
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// This will be handled on acknowledgement of the characteristic indication.
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mp_dfu->is_waiting_for_reset = true;
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err_code = ble_dfu_buttonless_resp_send(DFU_OP_ENTER_BOOTLOADER, DFU_RSP_SUCCESS);
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if (err_code != NRF_SUCCESS)
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{
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mp_dfu->is_waiting_for_reset = false;
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}
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return err_code;
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}
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uint32_t ble_dfu_buttonless_backend_init(ble_dfu_buttonless_t * p_dfu)
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{
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VERIFY_PARAM_NOT_NULL(p_dfu);
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mp_dfu = p_dfu;
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return NRF_SUCCESS;
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}
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uint32_t ble_dfu_buttonless_async_svci_init(void)
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{
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uint32_t ret_val;
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ret_val = nrf_dfu_svci_vector_table_set();
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VERIFY_SUCCESS(ret_val);
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ret_val = nrf_dfu_set_adv_name_init();
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VERIFY_SUCCESS(ret_val);
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ret_val = nrf_dfu_svci_vector_table_unset();
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return ret_val;
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}
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void ble_dfu_buttonless_on_sys_evt(uint32_t sys_evt, void * p_context)
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{
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uint32_t err_code;
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if (!nrf_dfu_set_adv_name_is_initialized())
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{
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return;
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}
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err_code = nrf_dfu_set_adv_name_on_sys_evt(sys_evt);
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if (err_code == NRF_ERROR_INVALID_STATE)
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{
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// The system event is not from an operation started by buttonless DFU.
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// No action is taken, and nothing is reported.
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}
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else if (err_code == NRF_SUCCESS)
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{
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// The async operation is finished.
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// Set the flag indicating that we are waiting for indication response
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// to activate the reset.
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mp_dfu->is_waiting_for_svci = false;
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// Report back the positive response
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err_code = ble_dfu_buttonless_resp_send(DFU_OP_SET_ADV_NAME, DFU_RSP_SUCCESS);
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if (err_code != NRF_SUCCESS)
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{
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mp_dfu->evt_handler(BLE_DFU_EVT_RESPONSE_SEND_ERROR);
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}
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}
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else
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{
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// Invalid error code reported back.
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mp_dfu->is_waiting_for_svci = false;
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err_code = ble_dfu_buttonless_resp_send(DFU_OP_SET_ADV_NAME, DFU_RSP_BUSY);
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if (err_code != NRF_SUCCESS)
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{
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mp_dfu->evt_handler(BLE_DFU_EVT_RESPONSE_SEND_ERROR);
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}
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// Report the failure to enter DFU mode
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mp_dfu->evt_handler(BLE_DFU_EVT_BOOTLOADER_ENTER_FAILED);
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}
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}
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uint32_t ble_dfu_buttonless_char_add(ble_dfu_buttonless_t * p_dfu)
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{
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ble_add_char_params_t add_char_params;
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memset(&add_char_params, 0, sizeof(add_char_params));
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add_char_params.uuid = BLE_DFU_BUTTONLESS_CHAR_UUID;
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add_char_params.uuid_type = p_dfu->uuid_type;
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add_char_params.char_props.indicate = 1;
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add_char_params.char_props.write = 1;
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add_char_params.is_defered_write = true;
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add_char_params.is_var_len = true;
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add_char_params.max_len = BLE_GATT_ATT_MTU_DEFAULT;
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add_char_params.cccd_write_access = SEC_OPEN;
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add_char_params.write_access = SEC_OPEN;
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add_char_params.read_access = SEC_OPEN;
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return characteristic_add(p_dfu->service_handle, &add_char_params, &p_dfu->control_point_char);
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}
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void ble_dfu_buttonless_on_ctrl_pt_write(ble_gatts_evt_write_t const * p_evt_write)
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{
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uint32_t err_code;
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ble_dfu_buttonless_rsp_code_t rsp_code = DFU_RSP_OPERATION_FAILED;
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// Start executing the control point write operation
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/*lint -e415 -e416 -save "Out of bounds access"*/
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switch (p_evt_write->data[0])
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{
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case DFU_OP_ENTER_BOOTLOADER:
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err_code = enter_bootloader();
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if (err_code == NRF_SUCCESS)
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{
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rsp_code = DFU_RSP_SUCCESS;
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}
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else if (err_code == NRF_ERROR_BUSY)
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{
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rsp_code = DFU_RSP_BUSY;
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}
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break;
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case DFU_OP_SET_ADV_NAME:
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if( (p_evt_write->data[1] > NRF_DFU_ADV_NAME_MAX_LENGTH)
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|| (p_evt_write->data[1] == 0))
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{
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// New advertisement name too short or too long.
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rsp_code = DFU_RSP_ADV_NAME_INVALID;
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}
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else
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{
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memcpy(m_adv_name.name, &p_evt_write->data[2], p_evt_write->data[1]);
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m_adv_name.len = p_evt_write->data[1];
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err_code = set_adv_name(&m_adv_name);
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if (err_code == NRF_SUCCESS)
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{
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rsp_code = DFU_RSP_SUCCESS;
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}
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}
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break;
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default:
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rsp_code = DFU_RSP_OP_CODE_NOT_SUPPORTED;
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break;
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}
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/*lint -restore*/
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// Report back in case of error
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if (rsp_code != DFU_RSP_SUCCESS)
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{
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err_code = ble_dfu_buttonless_resp_send((ble_dfu_buttonless_op_code_t)p_evt_write->data[0], rsp_code);
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if (err_code != NRF_SUCCESS)
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{
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mp_dfu->evt_handler(BLE_DFU_EVT_RESPONSE_SEND_ERROR);
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}
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// Report the error to the main application
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mp_dfu->evt_handler(BLE_DFU_EVT_BOOTLOADER_ENTER_FAILED);
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}
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}
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uint32_t ble_dfu_buttonless_bootloader_start_prepare(void)
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{
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uint32_t err_code;
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// Indicate to main app that DFU mode is starting.
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mp_dfu->evt_handler(BLE_DFU_EVT_BOOTLOADER_ENTER_PREPARE);
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err_code = ble_dfu_buttonless_bootloader_start_finalize();
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return err_code;
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}
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#endif // NRF_DFU_BOTTONLESS_SUPPORT_BOND
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