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dfu_transport_ble.c
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dfu_transport_ble.c
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/* Copyright (c) 2013 Nordic Semiconductor. All Rights Reserved.
*
* The information contained herein is property of Nordic Semiconductor ASA.
* Terms and conditions of usage are described in detail in NORDIC
* SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
*
* Licensees are granted free, non-transferable use of the information. NO
* WARRANTY of ANY KIND is provided. This heading must NOT be removed from
* the file.
*
*/
#include "dfu_transport.h"
#include "dfu.h"
#include "dfu_types.h"
#include <stddef.h>
#include <string.h>
// #include "boards.h"
#include "nrf51.h"
#include "nrf_sdm.h"
#include "nrf_gpio.h"
#include "app_util.h"
#include "app_error.h"
#include "softdevice_handler.h"
#include "ble_stack_handler_types.h"
#include "ble_advdata.h"
#include "ble_l2cap.h"
#include "ble_gap.h"
#include "ble_gatt.h"
#include "ble_hci.h"
#include "ble_dfu.h"
#include "nordic_common.h"
#include "app_timer.h"
#include "ble_conn_params.h"
#include "hci_mem_pool.h"
#include "bootloader.h"
#include "dfu_ble_svc_internal.h"
#include "nrf_delay.h"
/*
* We support version 0.6, but we have to advertise 0.4 during development.
* With this questionable hack, the current FOTA android app won't require
* an init packet
*/
#define DFU_REV_MAJOR 0x00 /** DFU Major revision number to be exposed. */
//#define DFU_REV_MINOR 0x06 /** DFU Minor revision number to be exposed. */
#define DFU_REV_MINOR 0x04
#define DFU_REVISION ((DFU_REV_MAJOR << 8) | DFU_REV_MINOR) /** DFU Revision number to be exposed. Combined of major and minor versions. */
// #define ADVERTISING_LED_PIN_NO BSP_LED_0 /**< Is on when device is advertising. */
// #define CONNECTED_LED_PIN_NO BSP_LED_1 /**< Is on when device has connected. */
#define DFU_SERVICE_HANDLE 0x000C /**< Handle of DFU service when DFU service is first service initialized. */
#define BLE_HANDLE_MAX 0xFFFF /**< Max handle value is BLE. */
#define DEVICE_NAME "DfuTarg" /**< Name of device. Will be included in the advertising data. */
#define MANUFACTURER_NAME "NordicSemiconductor" /**< Manufacturer. Will be passed to Device Information Service. */
#define MIN_CONN_INTERVAL (uint16_t)(MSEC_TO_UNITS(15, UNIT_1_25_MS)) /**< Minimum acceptable connection interval (11.25 milliseconds). */
#define MAX_CONN_INTERVAL (uint16_t)(MSEC_TO_UNITS(30, UNIT_1_25_MS)) /**< Maximum acceptable connection interval (15 milliseconds). */
#define SLAVE_LATENCY 0 /**< Slave latency. */
#define CONN_SUP_TIMEOUT (4 * 100) /**< Connection supervisory timeout (4 seconds). */
#define APP_TIMER_PRESCALER 0 /**< Value of the RTC1 PRESCALER register. */
#define FIRST_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(100, APP_TIMER_PRESCALER) /**< Time from the Connected event to first time sd_ble_gap_conn_param_update is called (100 milliseconds). */
#define NEXT_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(500, APP_TIMER_PRESCALER) /**< Time between each call to sd_ble_gap_conn_param_update after the first call (500 milliseconds). */
#define MAX_CONN_PARAMS_UPDATE_COUNT 3 /**< Number of attempts before giving up the connection parameter negotiation. */
#define APP_ADV_INTERVAL MSEC_TO_UNITS(25, UNIT_0_625_MS) /**< The advertising interval (25 ms.). */
#define APP_ADV_TIMEOUT_IN_SECONDS BLE_GAP_ADV_TIMEOUT_GENERAL_UNLIMITED /**< The advertising timeout in units of seconds. This is set to @ref BLE_GAP_ADV_TIMEOUT_GENERAL_UNLIMITED so that the advertisement is done as long as there there is a call to @ref dfu_transport_close function.*/
#define APP_DIRECTED_ADV_TIMEOUT 50 /**< number of direct advertisement (each lasting 1.28seconds). */
#define PEER_ADDRESS_TYPE_INVALID 0xFF /**< Value indicating that no valid peer address exists. This will be the case when a private resolvable address is used in which case there is no address available but instead an IRK is present. */
#define PEER_ADDRESS_TYPE_INVALID 0xFF /**< Value indicating that no valid peer address exists. This will be the case when a private resolvable address is used in which case there is no address available but instead an IRK is present. */
#define SEC_PARAM_TIMEOUT 30 /**< Timeout for Pairing Request or Security Request (in seconds). */
#define SEC_PARAM_BOND 0 /**< Perform bonding. */
#define SEC_PARAM_MITM 0 /**< Man In The Middle protection not required. */
#define SEC_PARAM_IO_CAPABILITIES BLE_GAP_IO_CAPS_NONE /**< No I/O capabilities. */
#define SEC_PARAM_OOB 0 /**< Out Of Band data not available. */
#define SEC_PARAM_MIN_KEY_SIZE 7 /**< Minimum encryption key size. */
#define SEC_PARAM_MAX_KEY_SIZE 16 /**< Maximum encryption key size. */
#define MAX_SIZE_OF_BLE_STACK_EVT (sizeof(ble_evt_t) + BLE_L2CAP_MTU_DEF) /**< Maximum size (in bytes) of the event received from S110 SoftDevice.*/
#define NUM_WORDS_RESERVED_FOR_BLE_EVENTS CEIL_DIV(MAX_SIZE_OF_BLE_STACK_EVT, sizeof(uint32_t)) /**< Size of the memory (in words) reserved for receiving S110 SoftDevice events. */
#define IS_CONNECTED() (m_conn_handle != BLE_CONN_HANDLE_INVALID) /**< Macro to determine if the device is in connected state. */
#define APP_FEATURE_NOT_SUPPORTED BLE_GATT_STATUS_ATTERR_APP_BEGIN + 2 /**< Reply when unsupported features are requested. */
#define SD_IMAGE_SIZE_OFFSET 0 /**< Offset in start packet for the size information for SoftDevice. */
#define BL_IMAGE_SIZE_OFFSET 4 /**< Offset in start packet for the size information for bootloader. */
#define APP_IMAGE_SIZE_OFFSET 8 /**< Offset in start packet for the size information for application. */
/**@brief Packet type enumeration.
*/
typedef enum
{
PKT_TYPE_INVALID, /**< Invalid packet type. Used for initialization purpose.*/
PKT_TYPE_START, /**< Start packet.*/
PKT_TYPE_INIT, /**< Init packet.*/
PKT_TYPE_FIRMWARE_DATA /**< Firmware data packet.*/
} pkt_type_t;
static ble_gap_sec_params_t m_sec_params; /**< Security requirements for this application. */
static ble_gap_adv_params_t m_adv_params; /**< Parameters to be passed to the stack when starting advertising. */
static ble_dfu_t m_dfu; /**< Structure used to identify the Device Firmware Update service. */
static pkt_type_t m_pkt_type; /**< Type of packet to be expected from the DFU Controller. */
static uint8_t m_update_mode; /**< Type of update mode specified by the DFU Controller. */
static uint32_t m_num_of_firmware_bytes_rcvd; /**< Cumulative number of bytes of firmware data received. */
static uint16_t m_pkt_notif_target; /**< Number of packets of firmware data to be received before transmitting the next Packet Receipt Notification to the DFU Controller. */
static uint16_t m_pkt_notif_target_cnt; /**< Number of packets of firmware data received after sending last Packet Receipt Notification or since the receipt of a @ref BLE_DFU_PKT_RCPT_NOTIF_ENABLED event from the DFU service, which ever occurs later.*/
static uint8_t * mp_rx_buffer; /**< Pointer to a RX buffer.*/
static bool m_tear_down_in_progress = false; /**< Variable to indicate whether a tear down is in progress. A tear down could be because the application has initiated it or the peer has disconnected. */
static bool m_pkt_rcpt_notif_enabled = false; /**< Variable to denote whether packet receipt notification has been enabled by the DFU controller.*/
static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */
static bool m_is_advertising = false; /**< Variable to indicate if advertising is ongoing.*/
static dfu_ble_peer_data_t m_ble_peer_data; /**< BLE Peer data exchanged from application on buttonless update mode. */
static bool m_ble_peer_data_valid = false; /**< True if BLE Peer data has been exchanged from application. */
static uint32_t m_direct_adv_cnt = APP_DIRECTED_ADV_TIMEOUT; /**< Counter of direct advertisements. */
static uint8_t * mp_final_packet; /**< Pointer to final data packet received. When callback for succesful packet handling is received from dfu bank handling a transfer complete response can be sent to peer. */
/**@brief Function updating Service Changed CCCD and indicate a service change to peer.
*
* @details This function will verify the CCCD setting provided with \ref m_ble_peer_data and
* update the system attributes accordingly. If Service Change CCCD is set to indicate
* then a service change indication will be send to the peer.
*
* @retval NRF_INVALID_STATE if no connection has been established to a central.
* @return Any error code returned by SoftDevice function calls.
*/
static uint32_t service_change_indicate()
{
uint32_t err_code;
if (m_conn_handle == BLE_CONN_HANDLE_INVALID)
{
return NRF_ERROR_INVALID_STATE;
}
if (m_ble_peer_data_valid)
{
err_code = sd_ble_gatts_sys_attr_set(m_conn_handle,
m_ble_peer_data.sys_serv_attr,
sizeof(m_ble_peer_data.sys_serv_attr),
BLE_GATTS_SYS_ATTR_FLAG_SYS_SRVCS);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
err_code = sd_ble_gatts_service_changed(m_conn_handle, DFU_SERVICE_HANDLE, BLE_HANDLE_MAX);
if ((err_code == BLE_ERROR_INVALID_CONN_HANDLE) ||
(err_code == NRF_ERROR_INVALID_STATE) ||
(err_code == BLE_ERROR_NO_TX_BUFFERS))
{
// Those errors can be expected when sending trying to send Service Changed Indication
// if the CCCD is not set to indicate. Thus set the returning error code to success.
err_code = NRF_SUCCESS;
}
}
else
{
err_code = sd_ble_gatts_sys_attr_set(m_conn_handle, NULL, 0, 0);
}
return err_code;
}
/**@brief Function to convert an nRF51 error code to a DFU Response Value.
*
* @details This function will convert a given nRF51 error code to a DFU Response Value. The
* result of this function depends on the current DFU procedure in progress, given as
* input in current_dfu_proc parameter.
*
* @param[in] err_code The nRF51 error code to be converted.
* @param[in] current_dfu_proc Current DFU procedure in progress.
*
* @return Converted Response Value.
*/
static ble_dfu_resp_val_t nrf_err_code_translate(uint32_t err_code,
const ble_dfu_procedure_t current_dfu_proc)
{
switch (err_code)
{
case NRF_SUCCESS:
return BLE_DFU_RESP_VAL_SUCCESS;
case NRF_ERROR_INVALID_STATE:
return BLE_DFU_RESP_VAL_INVALID_STATE;
case NRF_ERROR_NOT_SUPPORTED:
return BLE_DFU_RESP_VAL_NOT_SUPPORTED;
case NRF_ERROR_DATA_SIZE:
return BLE_DFU_RESP_VAL_DATA_SIZE;
case NRF_ERROR_INVALID_DATA:
if (current_dfu_proc == BLE_DFU_VALIDATE_PROCEDURE)
{
// When this error is received in Validation phase, then it maps to a CRC Error.
// Refer dfu_image_validate function for more information.
return BLE_DFU_RESP_VAL_CRC_ERROR;
}
return BLE_DFU_RESP_VAL_OPER_FAILED;
default:
return BLE_DFU_RESP_VAL_OPER_FAILED;
}
}
/**@brief Function for handling the callback events from the dfu module.
* Callbacks are expected when \ref dfu_data_pkt_handle has been executed.
*
* @param[in] packet Packet type for which this callback is related.
* @param[in] result Operation result code. NRF_SUCCESS when a queued operation was successful.
* @param[in] p_data Pointer to the data to which the operation is related.
*/
static void dfu_cb_handler(uint32_t packet, uint32_t result, uint8_t * p_data)
{
switch (packet)
{
ble_dfu_resp_val_t resp_val;
uint32_t err_code;
case DATA_PACKET:
if (result != NRF_SUCCESS)
{
// Disconnect from peer.
if (IS_CONNECTED())
{
err_code = sd_ble_gap_disconnect(m_conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
}
}
else
{
err_code = hci_mem_pool_rx_consume(p_data);
APP_ERROR_CHECK(err_code);
// If the callback matches final data packet received then the peer is notified.
if (mp_final_packet == p_data)
{
// Notify the DFU Controller about the success of the procedure.
err_code = ble_dfu_response_send(&m_dfu,
BLE_DFU_RECEIVE_APP_PROCEDURE,
BLE_DFU_RESP_VAL_SUCCESS);
APP_ERROR_CHECK(err_code);
}
}
break;
case START_PACKET:
// Translate the err_code returned by the above function to DFU Response Value.
resp_val = nrf_err_code_translate(result, BLE_DFU_START_PROCEDURE);
err_code = ble_dfu_response_send(&m_dfu,
BLE_DFU_START_PROCEDURE,
resp_val);
APP_ERROR_CHECK(err_code);
break;
default:
// ignore.
break;
}
}
/**@brief Function for notifying a DFU Controller about error conditions in the DFU module.
* This function also ensures that an error is translated from nrf_errors to DFU Response
* Value.
*
* @param[in] p_dfu DFU Service Structure.
* @param[in] err_code Nrf error code that should be translated and send to the DFU Controller.
*/
static void dfu_error_notify(ble_dfu_t * p_dfu, uint32_t err_code)
{
// An error has occurred. Notify the DFU Controller about this error condition.
// Translate the err_code returned to DFU Response Value.
ble_dfu_resp_val_t resp_val;
resp_val = nrf_err_code_translate(err_code, BLE_DFU_RECEIVE_APP_PROCEDURE);
err_code = ble_dfu_response_send(p_dfu, BLE_DFU_RECEIVE_APP_PROCEDURE, resp_val);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for processing start data written by the peer to the DFU Packet
* Characteristic.
*
* @param[in] p_dfu DFU Service Structure.
* @param[in] p_evt Pointer to the event received from the S110 SoftDevice.
*/
static void start_data_process(ble_dfu_t * p_dfu, ble_dfu_evt_t * p_evt)
{
uint32_t err_code;
dfu_start_packet_t start_packet = {.dfu_update_mode = m_update_mode};
dfu_update_packet_t update_packet =
{
.packet_type = START_PACKET,
.params.start_packet = &start_packet
};
uint32_t length = p_evt->evt.ble_dfu_pkt_write.len;
// Verify that the data is exactly three * four bytes (three words) long.
if (length != (3 * sizeof(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);
}
else
{
// Extract the size of from the DFU Packet Characteristic.
uint8_t * p_length_data = p_evt->evt.ble_dfu_pkt_write.p_data;
start_packet.sd_image_size = uint32_decode(p_length_data + SD_IMAGE_SIZE_OFFSET);
start_packet.bl_image_size = uint32_decode(p_length_data + BL_IMAGE_SIZE_OFFSET);
start_packet.app_image_size = uint32_decode(p_length_data + APP_IMAGE_SIZE_OFFSET);
err_code = dfu_start_pkt_handle(&update_packet);
if (err_code != NRF_SUCCESS)
{
// Translate the err_code returned by the above function to DFU Response Value.
ble_dfu_resp_val_t resp_val;
resp_val = nrf_err_code_translate(err_code, BLE_DFU_START_PROCEDURE);
err_code = ble_dfu_response_send(p_dfu, BLE_DFU_START_PROCEDURE, resp_val);
}
APP_ERROR_CHECK(err_code);
}
}
/**@brief Function for processing initialization data written by the peer to the DFU Packet
* Characteristic.
*
* @param[in] p_dfu DFU Service Structure.
* @param[in] p_evt Pointer to the event received from the S110 SoftDevice.
*/
static void init_data_process(ble_dfu_t * p_dfu, ble_dfu_evt_t * p_evt)
{
uint32_t err_code;
dfu_update_packet_t dfu_pkt;
// The DFU module accepts the dfu_pkt.packet_length to be in 'number of words'. And so if the
// received data does not have a size which is a multiple of four, it should be padded with
// zeros and the packet_length should be incremented accordingly before calling
// dfu_init_pkt_handle.
if ((p_evt->evt.ble_dfu_pkt_write.len & (sizeof(uint32_t) - 1)) != 0)
{
uint32_t padding;
uint32_t i;
uint8_t pkt_length = p_evt->evt.ble_dfu_pkt_write.len;
// Find out the number of bytes to be padded.
padding = sizeof(uint32_t) - (pkt_length & (sizeof(uint32_t) - 1));
for (i = 0; i < padding; i++)
{
p_evt->evt.ble_dfu_pkt_write.p_data[pkt_length++] = 0;
}
p_evt->evt.ble_dfu_pkt_write.len = pkt_length;
}
dfu_pkt.packet_type = INIT_PACKET;
dfu_pkt.params.data_packet.p_data_packet = (uint32_t *)p_evt->evt.ble_dfu_pkt_write.p_data;
dfu_pkt.params.data_packet.packet_length = p_evt->evt.ble_dfu_pkt_write.len / sizeof(uint32_t);
err_code = dfu_init_pkt_handle(&dfu_pkt);
// Translate the err_code returned by the above function to DFU Response Value.
if (err_code != NRF_SUCCESS)
{
ble_dfu_resp_val_t resp_val = nrf_err_code_translate(err_code, BLE_DFU_INIT_PROCEDURE);
err_code = ble_dfu_response_send(p_dfu, BLE_DFU_INIT_PROCEDURE, resp_val);
APP_ERROR_CHECK(err_code);
}
}
/**@brief Function for processing application data written by the peer to the DFU Packet
* Characteristic.
*
* @param[in] p_dfu DFU Service Structure.
* @param[in] p_evt Pointer to the event received from the S110 SoftDevice.
*/
static void app_data_process(ble_dfu_t * p_dfu, ble_dfu_evt_t * p_evt)
{
uint32_t err_code;
if ((p_evt->evt.ble_dfu_pkt_write.len & (sizeof(uint32_t) - 1)) != 0)
{
// Data length is not a multiple of 4 (word size).
err_code = ble_dfu_response_send(p_dfu,
BLE_DFU_RECEIVE_APP_PROCEDURE,
BLE_DFU_RESP_VAL_NOT_SUPPORTED);
APP_ERROR_CHECK(err_code);
return;
}
uint32_t length = p_evt->evt.ble_dfu_pkt_write.len;
err_code = hci_mem_pool_rx_produce(length, (void **) &mp_rx_buffer);
if (err_code != NRF_SUCCESS)
{
dfu_error_notify(p_dfu, err_code);
return;
}
uint8_t * p_data_packet = p_evt->evt.ble_dfu_pkt_write.p_data;
memcpy(mp_rx_buffer, p_data_packet, length);
err_code = hci_mem_pool_rx_data_size_set(length);
if (err_code != NRF_SUCCESS)
{
dfu_error_notify(p_dfu, err_code);
return;
}
err_code = hci_mem_pool_rx_extract(&mp_rx_buffer, &length);
if (err_code != NRF_SUCCESS)
{
dfu_error_notify(p_dfu, err_code);
return;
}
dfu_update_packet_t dfu_pkt;
dfu_pkt.packet_type = DATA_PACKET;
dfu_pkt.params.data_packet.packet_length = length / sizeof(uint32_t);
dfu_pkt.params.data_packet.p_data_packet = (uint32_t *)mp_rx_buffer;
err_code = dfu_data_pkt_handle(&dfu_pkt);
if (err_code == NRF_SUCCESS)
{
m_num_of_firmware_bytes_rcvd += p_evt->evt.ble_dfu_pkt_write.len;
// All the expected firmware data has been received and processed successfully.
// Response will be sent when flash operation for final packet is completed.
mp_final_packet = mp_rx_buffer;
}
else if (err_code == NRF_ERROR_INVALID_LENGTH)
{
// Firmware data packet was handled successfully. And more firmware data is expected.
m_num_of_firmware_bytes_rcvd += p_evt->evt.ble_dfu_pkt_write.len;
// Check if a packet receipt notification is needed to be sent.
if (m_pkt_rcpt_notif_enabled)
{
// Decrement the counter for the number firmware packets needed for sending the
// next packet receipt notification.
m_pkt_notif_target_cnt--;
if (m_pkt_notif_target_cnt == 0)
{
err_code = ble_dfu_pkts_rcpt_notify(p_dfu, m_num_of_firmware_bytes_rcvd);
APP_ERROR_CHECK(err_code);
// Reset the counter for the number of firmware packets.
m_pkt_notif_target_cnt = m_pkt_notif_target;
}
}
}
else
{
uint32_t hci_error = hci_mem_pool_rx_consume(mp_rx_buffer);
if (hci_error != NRF_SUCCESS)
{
dfu_error_notify(p_dfu, hci_error);
}
dfu_error_notify(p_dfu, err_code);
}
}
/**@brief Function for processing data written by the peer to the DFU Packet Characteristic.
*
* @param[in] p_dfu DFU Service Structure.
* @param[in] p_evt Pointer to the event received from the S110 SoftDevice.
*/
static void on_dfu_pkt_write(ble_dfu_t * p_dfu, ble_dfu_evt_t * p_evt)
{
// The peer has written to the DFU Packet characteristic. Depending on the value of
// the current value of the DFU Control Point, the appropriate action is taken.
switch (m_pkt_type)
{
case PKT_TYPE_START:
// The peer has written a start packet to the DFU Packet characteristic.
start_data_process(p_dfu, p_evt);
break;
case PKT_TYPE_INIT:
// The peer has written an init packet to the DFU Packet characteristic.
init_data_process(p_dfu, p_evt);
break;
case PKT_TYPE_FIRMWARE_DATA:
app_data_process(p_dfu, p_evt);
break;
default:
// It is not possible to find out what packet it is. Ignore. There is no
// mechanism to notify the DFU Controller about this error condition.
break;
}
}
/**@brief Function for handling a Connection Parameters error.
*
* @param[in] nrf_error Error code.
*/
static void conn_params_error_handler(uint32_t nrf_error)
{
APP_ERROR_HANDLER(nrf_error);
}
/**@brief Function for initializing the Connection Parameters module.
*/
static void conn_params_init(void)
{
uint32_t err_code;
ble_conn_params_init_t cp_init;
memset(&cp_init, 0, sizeof(cp_init));
cp_init.p_conn_params = NULL;
cp_init.first_conn_params_update_delay = FIRST_CONN_PARAMS_UPDATE_DELAY;
cp_init.next_conn_params_update_delay = NEXT_CONN_PARAMS_UPDATE_DELAY;
cp_init.max_conn_params_update_count = MAX_CONN_PARAMS_UPDATE_COUNT;
cp_init.start_on_notify_cccd_handle = BLE_GATT_HANDLE_INVALID;
cp_init.disconnect_on_fail = false;
cp_init.evt_handler = NULL;
cp_init.error_handler = conn_params_error_handler;
err_code = ble_conn_params_init(&cp_init);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for the Device Firmware Update Service event handler.
*
* @details This function will be called for all Device Firmware Update Service events which
* are passed to the application.
*
* @param[in] p_dfu Device Firmware Update Service structure.
* @param[in] p_evt Event received from the Device Firmware Update Service.
*/
static void on_dfu_evt(ble_dfu_t * p_dfu, ble_dfu_evt_t * p_evt)
{
uint32_t err_code;
ble_dfu_resp_val_t resp_val;
switch (p_evt->ble_dfu_evt_type)
{
case BLE_DFU_VALIDATE:
err_code = dfu_image_validate();
// Translate the err_code returned by the above function to DFU Response Value.
resp_val = nrf_err_code_translate(err_code, BLE_DFU_VALIDATE_PROCEDURE);
err_code = ble_dfu_response_send(p_dfu, BLE_DFU_VALIDATE_PROCEDURE, resp_val);
APP_ERROR_CHECK(err_code);
break;
case BLE_DFU_ACTIVATE_N_RESET:
err_code = dfu_transport_close();
APP_ERROR_CHECK(err_code);
// With the S110 Flash API it is safe to initiate the activate before connection is
// fully closed.
err_code = dfu_image_activate();
if (err_code != NRF_SUCCESS)
{
dfu_reset();
}
break;
case BLE_DFU_SYS_RESET:
err_code = dfu_transport_close();
APP_ERROR_CHECK(err_code);
dfu_reset();
break;
case BLE_DFU_START:
m_pkt_type = PKT_TYPE_START;
m_update_mode = (uint8_t)p_evt->evt.ble_dfu_pkt_write.p_data[0];
break;
case BLE_DFU_RECEIVE_INIT_DATA:
m_pkt_type = PKT_TYPE_INIT;
if ((uint8_t)p_evt->evt.ble_dfu_pkt_write.p_data[0] == DFU_INIT_COMPLETE)
{
err_code = dfu_init_pkt_complete();
// Translate the err_code returned by the above function to DFU Response Value.
resp_val = nrf_err_code_translate(err_code, BLE_DFU_INIT_PROCEDURE);
err_code = ble_dfu_response_send(p_dfu, BLE_DFU_INIT_PROCEDURE, resp_val);
APP_ERROR_CHECK(err_code);
}
break;
case BLE_DFU_RECEIVE_APP_DATA:
m_pkt_type = PKT_TYPE_FIRMWARE_DATA;
break;
case BLE_DFU_PACKET_WRITE:
on_dfu_pkt_write(p_dfu, p_evt);
break;
case BLE_DFU_PKT_RCPT_NOTIF_ENABLED:
m_pkt_rcpt_notif_enabled = true;
m_pkt_notif_target = p_evt->evt.pkt_rcpt_notif_req.num_of_pkts;
m_pkt_notif_target_cnt = p_evt->evt.pkt_rcpt_notif_req.num_of_pkts;
break;
case BLE_DFU_PKT_RCPT_NOTIF_DISABLED:
m_pkt_rcpt_notif_enabled = false;
m_pkt_notif_target = 0;
break;
case BLE_DFU_BYTES_RECEIVED_SEND:
err_code = ble_dfu_bytes_rcvd_report(p_dfu, m_num_of_firmware_bytes_rcvd);
APP_ERROR_CHECK(err_code);
break;
default:
// Unsupported event received from DFU Service. Ignore.
break;
}
}
/**@brief Function for the Advertising functionality initialization.
*
* @details Encodes the required advertising data and passes it to the stack.
* Also builds a structure to be passed to the stack when starting advertising.
*/
static void advertising_init(uint8_t adv_flags)
{
uint32_t err_code;
ble_advdata_t advdata;
ble_uuid_t service_uuid;
service_uuid.type = m_dfu.uuid_type;
service_uuid.uuid = BLE_DFU_SERVICE_UUID;
// Build and set advertising data.
memset(&advdata, 0, sizeof(advdata));
advdata.name_type = BLE_ADVDATA_FULL_NAME;
advdata.include_appearance = false;
advdata.flags = adv_flags;
advdata.uuids_more_available.uuid_cnt = 1;
advdata.uuids_more_available.p_uuids = &service_uuid;
err_code = ble_advdata_set(&advdata, NULL);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for starting advertising.
*/
static void advertising_start(void)
{
if (!m_is_advertising)
{
uint32_t err_code;
// Initialize advertising parameters (used when starting advertising).
memset(&m_adv_params, 0, sizeof(m_adv_params));
if (m_ble_peer_data_valid)
{
ble_gap_irk_t empty_irk = {0};
if (memcmp(m_ble_peer_data.irk.irk, empty_irk.irk, sizeof(empty_irk.irk)) == 0)
{
advertising_init(BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE);
m_adv_params.type = BLE_GAP_ADV_TYPE_ADV_DIRECT_IND;
m_adv_params.p_peer_addr = &m_ble_peer_data.addr;
m_adv_params.fp = BLE_GAP_ADV_FP_ANY;
m_adv_params.interval = 0;
m_adv_params.timeout = 0;
}
else
{
ble_gap_irk_t * p_irk[1];
ble_gap_addr_t * p_addr[1];
p_irk[0] = &m_ble_peer_data.irk;
p_addr[0] = &m_ble_peer_data.addr;
ble_gap_whitelist_t whitelist;
whitelist.addr_count = 1;
whitelist.pp_addrs = p_addr;
whitelist.irk_count = 1;
whitelist.pp_irks = p_irk;
advertising_init(BLE_GAP_ADV_FLAG_BR_EDR_NOT_SUPPORTED);
m_adv_params.type = BLE_GAP_ADV_TYPE_ADV_IND;
m_adv_params.fp = BLE_GAP_ADV_FP_FILTER_CONNREQ;
m_adv_params.p_whitelist = &whitelist;
m_adv_params.interval = APP_ADV_INTERVAL;
m_adv_params.timeout = APP_ADV_TIMEOUT_IN_SECONDS;
}
}
else
{
advertising_init(BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE);
m_adv_params.type = BLE_GAP_ADV_TYPE_ADV_IND;
m_adv_params.p_peer_addr = NULL;
m_adv_params.fp = BLE_GAP_ADV_FP_ANY;
m_adv_params.interval = APP_ADV_INTERVAL;
m_adv_params.timeout = APP_ADV_TIMEOUT_IN_SECONDS;
}
err_code = sd_ble_gap_adv_start(&m_adv_params);
APP_ERROR_CHECK(err_code);
// nrf_gpio_pin_clear(ADVERTISING_LED_PIN_NO);
m_is_advertising = true;
}
}
/**@brief Function for stopping advertising.
*/
static void advertising_stop(void)
{
if (m_is_advertising)
{
uint32_t err_code;
err_code = sd_ble_gap_adv_stop();
APP_ERROR_CHECK(err_code);
// nrf_gpio_pin_set(ADVERTISING_LED_PIN_NO);
m_is_advertising = false;
}
}
/**@brief Function for the Application's S110 SoftDevice event handler.
*
* @param[in] p_ble_evt S110 SoftDevice event.
*/
static void on_ble_evt(ble_evt_t * p_ble_evt)
{
uint32_t err_code;
ble_gatts_rw_authorize_reply_params_t auth_reply;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
// nrf_gpio_pin_clear(CONNECTED_LED_PIN_NO);
// nrf_gpio_pin_set(ADVERTISING_LED_PIN_NO);
m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
m_is_advertising = false;
break;
case BLE_GAP_EVT_DISCONNECTED:
{
uint8_t sys_attr[128];
uint16_t sys_attr_len = 128;
m_direct_adv_cnt = APP_DIRECTED_ADV_TIMEOUT;
// nrf_gpio_pin_set(CONNECTED_LED_PIN_NO);
err_code = sd_ble_gatts_sys_attr_get(m_conn_handle,
sys_attr,
&sys_attr_len,
BLE_GATTS_SYS_ATTR_FLAG_SYS_SRVCS);
APP_ERROR_CHECK(err_code);
}
if (!m_tear_down_in_progress)
{
// The Disconnected event is because of an external event. (Link loss or
// disconnect triggered by the DFU Controller before the firmware update was
// complete).
// Restart advertising so that the DFU Controller can reconnect if possible.
advertising_start();
}
m_conn_handle = BLE_CONN_HANDLE_INVALID;
break;
case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
{
ble_gap_sec_keyset_t keys;
ble_gap_enc_key_t enc_key;
ble_gap_id_key_t id_key;
id_key.id_addr_info = m_ble_peer_data.addr;
id_key.id_info = m_ble_peer_data.irk;
enc_key = m_ble_peer_data.enc_key;
keys.keys_central.p_id_key = &id_key;
keys.keys_central.p_enc_key = &enc_key;
err_code = sd_ble_gap_sec_params_reply(m_conn_handle,
BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP,
&m_sec_params,
&keys);
APP_ERROR_CHECK(err_code);
}
break;
case BLE_GATTS_EVT_TIMEOUT:
if (p_ble_evt->evt.gatts_evt.params.timeout.src == BLE_GATT_TIMEOUT_SRC_PROTOCOL)
{
err_code = sd_ble_gap_disconnect(m_conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
}
break;
case BLE_GAP_EVT_TIMEOUT:
if (p_ble_evt->evt.gap_evt.params.timeout.src == BLE_GAP_TIMEOUT_SRC_ADVERTISING)
{
m_is_advertising = false;
m_direct_adv_cnt--;
if (m_direct_adv_cnt == 0)
{
dfu_update_status_t update_status = {.status_code = DFU_TIMEOUT};
bootloader_dfu_update_process(update_status);
}
else
{
advertising_start();
}
}
break;
case BLE_EVT_USER_MEM_REQUEST:
err_code = sd_ble_user_mem_reply(m_conn_handle, NULL);
APP_ERROR_CHECK(err_code);
break;
case BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST:
if (p_ble_evt->evt.gatts_evt.params.authorize_request.type
!= BLE_GATTS_AUTHORIZE_TYPE_INVALID)
{
if ((p_ble_evt->evt.gatts_evt.params.authorize_request.request.write.op
== BLE_GATTS_OP_PREP_WRITE_REQ)
|| (p_ble_evt->evt.gatts_evt.params.authorize_request.request.write.op
== BLE_GATTS_OP_EXEC_WRITE_REQ_NOW)
|| (p_ble_evt->evt.gatts_evt.params.authorize_request.request.write.op
== BLE_GATTS_OP_EXEC_WRITE_REQ_CANCEL))
{
if (p_ble_evt->evt.gatts_evt.params.authorize_request.type
== BLE_GATTS_AUTHORIZE_TYPE_WRITE)
{
auth_reply.type = BLE_GATTS_AUTHORIZE_TYPE_WRITE;
}
else
{
auth_reply.type = BLE_GATTS_AUTHORIZE_TYPE_READ;
}
auth_reply.params.write.gatt_status = APP_FEATURE_NOT_SUPPORTED;
err_code = sd_ble_gatts_rw_authorize_reply(m_conn_handle,&auth_reply);
APP_ERROR_CHECK(err_code);
}
}
break;
case BLE_GAP_EVT_SEC_INFO_REQUEST:
{
ble_gap_enc_info_t * p_enc_info = NULL;
// If there is a match in diversifier then set the correct keys.
if (p_ble_evt->evt.gap_evt.params.sec_info_request.master_id.ediv ==
m_ble_peer_data.enc_key.master_id.ediv)
{
p_enc_info = &m_ble_peer_data.enc_key.enc_info;
}
err_code = sd_ble_gap_sec_info_reply(p_ble_evt->evt.gap_evt.conn_handle,
p_enc_info,
&m_ble_peer_data.irk,
NULL);
APP_ERROR_CHECK(err_code);
}
break;
case BLE_GATTS_EVT_SYS_ATTR_MISSING:
case BLE_GAP_EVT_CONN_SEC_UPDATE:
err_code = service_change_indicate();
APP_ERROR_CHECK(err_code);
break;
case BLE_GAP_EVT_AUTH_STATUS:
// No implementation needed.
break;
default:
// No implementation needed.
break;
}
}
/**@brief Function for dispatching a S110 SoftDevice event to all modules with a S110
* SoftDevice event handler.
*
* @details This function is called from the S110 SoftDevice event interrupt handler after a
* S110 SoftDevice event has been received.
*
* @param[in] p_ble_evt S110 SoftDevice event.
*/
static void ble_evt_dispatch(ble_evt_t * p_ble_evt)
{
ble_conn_params_on_ble_evt(p_ble_evt);
ble_dfu_on_ble_evt(&m_dfu, p_ble_evt);
on_ble_evt(p_ble_evt);
}
/**@brief Function for the LEDs initialization.
*
* @details Initializes all LEDs used by this application.
*/
static void leds_init(void)
{
// nrf_gpio_cfg_output(ADVERTISING_LED_PIN_NO);
// nrf_gpio_cfg_output(CONNECTED_LED_PIN_NO);
// nrf_gpio_pin_set(ADVERTISING_LED_PIN_NO);
// nrf_gpio_pin_set(CONNECTED_LED_PIN_NO);
}
/**@brief Function for the GAP initialization.
*
* @details This function will setup all the necessary GAP (Generic Access Profile) parameters of
* the device. It also sets the permissions and appearance.
*/
static void gap_params_init(void)
{
uint32_t err_code;
ble_gap_conn_params_t gap_conn_params;
ble_gap_conn_sec_mode_t sec_mode;
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode);
err_code = sd_ble_gap_device_name_set(&sec_mode,
(const uint8_t *)DEVICE_NAME,
strlen(DEVICE_NAME));
APP_ERROR_CHECK(err_code);
memset(&gap_conn_params, 0, sizeof(gap_conn_params));
gap_conn_params.min_conn_interval = MIN_CONN_INTERVAL;
gap_conn_params.max_conn_interval = MAX_CONN_INTERVAL;
gap_conn_params.slave_latency = SLAVE_LATENCY;
gap_conn_params.conn_sup_timeout = CONN_SUP_TIMEOUT;
err_code = sd_ble_gap_ppcp_set(&gap_conn_params);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling Service errors.
*
* @details A pointer to this function will be passed to the DFU service which may need to inform
* the application about an error.
*
* @param[in] nrf_error Error code containing information about what went wrong.
*/
static void service_error_handler(uint32_t nrf_error)
{
APP_ERROR_HANDLER(nrf_error);
}
/**@brief Function for initializing services that will be used by the application.
*/