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main.c
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/**
* Copyright (c) 2014 - 2021, 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, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, 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 its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA 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.
*
*/
/** @file
*
* @defgroup ble_sdk_uart_over_ble_main main.c
* @{
* @ingroup ble_sdk_app_nus_eval
* @brief UART over BLE application main file.
*
* This file contains the source code for a sample application that uses the Nordic UART service.
* This application uses the @ref srvlib_conn_params module.
*/
#include <stdint.h>
#include <string.h>
#include "nordic_common.h"
#include "nrf.h"
#include "ble_hci.h"
#include "ble_advdata.h"
#include "ble_advertising.h"
#include "ble_conn_params.h"
#include "nrf_sdh.h"
#include "nrf_sdh_soc.h"
#include "nrf_sdh_ble.h"
#include "nrf_ble_gatt.h"
#include "nrf_ble_qwr.h"
#include "app_timer.h"
#include "app_uart.h"
#include "app_util_platform.h"
#include "bsp_btn_ble.h"
#include "nrf_pwr_mgmt.h"
#include "ble_lbs.h"
#include "nrf_drv_usbd.h"
#include "nrf_drv_clock.h"
#include "nrf_drv_power.h"
#include "nrf_crypto.h"
#include "app_timer.h"
#include "app_usbd.h"
#include "app_usbd_core.h"
#include "app_usbd_hid_kbd.h"
#include "app_usbd_cdc_acm.h"
#include "app_error.h"
#include "peer_manager.h"
#include "peer_manager_handler.h"
#if defined (UART_PRESENT)
#include "nrf_uart.h"
#endif
#if defined (UARTE_PRESENT)
#include "nrf_uarte.h"
#endif
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
#ifdef NRF_LOG_INFO
#undef NRF_LOG_INFO
#define NRF_LOG_INFO(...)
#endif
#define BLE_ENABLE
#define USB_ENABLE
#define CDC_ENABLE
// forward declerations
void print_using_cdc(const char * str);
uint8_t rng_generate_1byte(void);
void crypt_do( uint8_t rand );
void update_scramble_offset(void);
//=======================
// USB definitions
//=======================
/**
* @brief Enable USB power detection
*/
#ifndef USBD_POWER_DETECTION
#define USBD_POWER_DETECTION true
#endif
/**
* @brief Enable HID mouse class
*/
#define CONFIG_HAS_MOUSE 1
/**
* @brief Enable HID keyboard class
*/
#define CONFIG_HAS_KBD 1
/**
* @brief Letter to be sent on LETTER button
*
* @sa BTN_KBD_LETTER
*/
#define CONFIG_KBD_LETTER APP_USBD_HID_KBD_G
/**
* @brief Propagate SET_PROTOCOL command to other HID instance
*/
#define PROPAGATE_PROTOCOL 0
#define LED_CAPSLOCK (BSP_BOARD_LED_0) /**< CAPSLOCK */
#define LED_NUMLOCK (BSP_BOARD_LED_1) /**< NUMLOCK */
#define LED_HID_REP (BSP_BOARD_LED_2) /**< Changes its state if any HID report was received or transmitted */
#define LED_USB_START (BSP_BOARD_LED_3) /**< The USBD library has been started and the bus is not in SUSPEND state */
#define BTN_KBD_SHIFT 2
#define BTN_KBD_LETTER 3
/**
* @brief Additional key release events
*
* This example needs to process release events of used buttons
*/
enum {
BSP_USER_EVENT_RELEASE_0 = BSP_EVENT_KEY_LAST + 1, /**< Button 0 released */
BSP_USER_EVENT_RELEASE_1, /**< Button 1 released */
BSP_USER_EVENT_RELEASE_2, /**< Button 2 released */
BSP_USER_EVENT_RELEASE_3, /**< Button 3 released */
BSP_USER_EVENT_RELEASE_4, /**< Button 4 released */
BSP_USER_EVENT_RELEASE_5, /**< Button 5 released */
BSP_USER_EVENT_RELEASE_6, /**< Button 6 released */
BSP_USER_EVENT_RELEASE_7, /**< Button 7 released */
};
/**
* @brief USB composite interfaces
*/
#define APP_USBD_INTERFACE_KBD 0
/**
* @brief User event handler, HID keyboard
*/
static void hid_kbd_user_ev_handler(app_usbd_class_inst_t const * p_inst,
app_usbd_hid_user_event_t event);
/**
* @brief Global HID keyboard instance
*/
APP_USBD_HID_KBD_GLOBAL_DEF(m_app_hid_kbd,
APP_USBD_INTERFACE_KBD,
NRF_DRV_USBD_EPIN1,
hid_kbd_user_ev_handler,
APP_USBD_HID_SUBCLASS_BOOT
);
static void kbd_status(void)
{
if(app_usbd_hid_kbd_led_state_get(&m_app_hid_kbd, APP_USBD_HID_KBD_LED_NUM_LOCK))
{
bsp_board_led_on(LED_NUMLOCK);
}
else
{
bsp_board_led_off(LED_NUMLOCK);
}
if(app_usbd_hid_kbd_led_state_get(&m_app_hid_kbd, APP_USBD_HID_KBD_LED_CAPS_LOCK))
{
bsp_board_led_on(LED_CAPSLOCK);
}
else
{
bsp_board_led_off(LED_CAPSLOCK);
}
}
/**
* @brief Class specific event handler.
*
* @param p_inst Class instance.
* @param event Class specific event.
* */
static void hid_kbd_user_ev_handler(app_usbd_class_inst_t const * p_inst,
app_usbd_hid_user_event_t event)
{
UNUSED_PARAMETER(p_inst);
switch (event) {
case APP_USBD_HID_USER_EVT_OUT_REPORT_READY:
/* Only one output report IS defined for HID keyboard class. Update LEDs state. */
bsp_board_led_invert(LED_HID_REP);
kbd_status();
break;
case APP_USBD_HID_USER_EVT_IN_REPORT_DONE:
bsp_board_led_invert(LED_HID_REP);
break;
case APP_USBD_HID_USER_EVT_SET_BOOT_PROTO:
UNUSED_RETURN_VALUE(hid_kbd_clear_buffer(p_inst));
#if PROPAGATE_PROTOCOL
hid_mouse_on_set_protocol(&m_app_hid_mouse, APP_USBD_HID_USER_EVT_SET_BOOT_PROTO);
#endif
break;
case APP_USBD_HID_USER_EVT_SET_REPORT_PROTO:
UNUSED_RETURN_VALUE(hid_kbd_clear_buffer(p_inst));
#if PROPAGATE_PROTOCOL
hid_mouse_on_set_protocol(&m_app_hid_mouse, APP_USBD_HID_USER_EVT_SET_REPORT_PROTO);
#endif
break;
default:
break;
}
}
/**
* @brief USBD library specific event handler.
*
* @param event USBD library event.
* */
static void usbd_user_ev_handler(app_usbd_event_type_t event)
{
switch (event)
{
case APP_USBD_EVT_DRV_SOF:
break;
case APP_USBD_EVT_DRV_SUSPEND:
app_usbd_suspend_req(); // Allow the library to put the peripheral into sleep mode
bsp_board_leds_off();
break;
case APP_USBD_EVT_DRV_RESUME:
bsp_board_led_on(LED_USB_START);
kbd_status(); /* Restore LED state - during SUSPEND all LEDS are turned off */
break;
case APP_USBD_EVT_STARTED:
bsp_board_led_on(LED_USB_START);
break;
case APP_USBD_EVT_STOPPED:
app_usbd_disable();
bsp_board_leds_off();
break;
case APP_USBD_EVT_POWER_DETECTED:
NRF_LOG_INFO("USB power detected");
if (!nrf_drv_usbd_is_enabled())
{
app_usbd_enable();
}
break;
case APP_USBD_EVT_POWER_REMOVED:
NRF_LOG_INFO("USB power removed");
app_usbd_stop();
break;
case APP_USBD_EVT_POWER_READY:
NRF_LOG_INFO("USB ready");
app_usbd_start();
break;
default:
break;
}
}
//===================
// BLE Definitions
//===================
#define ADVERTISING_LED BSP_BOARD_LED_0 /**< Is on when device is advertising. */
#define CONNECTED_LED BSP_BOARD_LED_1 /**< Is on when device has connected. */
#define LEDBUTTON_LED BSP_BOARD_LED_2 /**< LED to be toggled with the help of the LED Button Service. */
#define LEDBUTTON_BUTTON BSP_BUTTON_0 /**< Button that will trigger the notification event with the LED Button Service */
#define DEVICE_NAME "Nordic_Blinky" /**< Name of device. Will be included in the advertising data. */
#define APP_BLE_OBSERVER_PRIO 3 /**< Application's BLE observer priority. You shouldn't need to modify this value. */
#define APP_BLE_CONN_CFG_TAG 1 /**< A tag identifying the SoftDevice BLE configuration. */
#define APP_ADV_INTERVAL 64 /**< The advertising interval (in units of 0.625 ms; this value corresponds to 40 ms). */
#define APP_ADV_DURATION BLE_GAP_ADV_TIMEOUT_GENERAL_UNLIMITED /**< The advertising time-out (in units of seconds). When set to 0, we will never time out. */
#define MIN_CONN_INTERVAL MSEC_TO_UNITS(100, UNIT_1_25_MS) /**< Minimum acceptable connection interval (0.5 seconds). */
#define MAX_CONN_INTERVAL MSEC_TO_UNITS(200, UNIT_1_25_MS) /**< Maximum acceptable connection interval (1 second). */
#define SLAVE_LATENCY 0 /**< Slave latency. */
#define CONN_SUP_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS) /**< Connection supervisory time-out (4 seconds). */
#define FIRST_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(20000) /**< Time from initiating event (connect or start of notification) to first time sd_ble_gap_conn_param_update is called (15 seconds). */
#define NEXT_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(5000) /**< Time between each call to sd_ble_gap_conn_param_update after the first call (5 seconds). */
#define MAX_CONN_PARAMS_UPDATE_COUNT 3 /**< Number of attempts before giving up the connection parameter negotiation. */
#define BUTTON_DETECTION_DELAY APP_TIMER_TICKS(50) /**< Delay from a GPIOTE event until a button is reported as pushed (in number of timer ticks). */
#define DEAD_BEEF 0xDEADBEEF /**< Value used as error code on stack dump, can be used to identify stack location on stack unwind. */
BLE_LBS_DEF(m_lbs); /**< LED Button Service instance. */
NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */
NRF_BLE_QWR_DEF(m_qwr); /**< Context for the Queued Write module.*/
static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */
static uint8_t m_adv_handle = BLE_GAP_ADV_SET_HANDLE_NOT_SET; /**< Advertising handle used to identify an advertising set. */
static uint8_t m_enc_advdata[BLE_GAP_ADV_SET_DATA_SIZE_MAX]; /**< Buffer for storing an encoded advertising set. */
static uint8_t m_enc_scan_response_data[BLE_GAP_ADV_SET_DATA_SIZE_MAX]; /**< Buffer for storing an encoded scan data. */
/**@brief Struct that contains pointers to the encoded advertising data. */
static ble_gap_adv_data_t m_adv_data =
{
.adv_data =
{
.p_data = m_enc_advdata,
.len = BLE_GAP_ADV_SET_DATA_SIZE_MAX
},
.scan_rsp_data =
{
.p_data = m_enc_scan_response_data,
.len = BLE_GAP_ADV_SET_DATA_SIZE_MAX
}
};
static void advertising_start(void);
/**@brief Function for assert macro callback.
*
* @details This function will be called in case of an assert in the SoftDevice.
*
* @warning This handler is an example only and does not fit a final product. You need to analyze
* how your product is supposed to react in case of Assert.
* @warning On assert from the SoftDevice, the system can only recover on reset.
*
* @param[in] line_num Line number of the failing ASSERT call.
* @param[in] p_file_name File name of the failing ASSERT call.
*/
void assert_nrf_callback(uint16_t line_num, const uint8_t * p_file_name)
{
app_error_handler(DEAD_BEEF, line_num, p_file_name);
}
/**@brief Function for the LEDs initialization.
*
* @details Initializes all LEDs used by the application.
*/
static void leds_init(void)
{
bsp_board_init(BSP_INIT_LEDS);
}
/**@brief Function for the Timer initialization.
*
* @details Initializes the timer module.
*/
static void timers_init(void)
{
// Initialize timer module, making it use the scheduler
ret_code_t err_code = app_timer_init();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling events from the button handler module.
*
* @param[in] pin_no The pin that the event applies to.
* @param[in] button_action The button action (press/release).
*/
static void button_event_handler(uint8_t pin_no, uint8_t button_action)
{
ret_code_t err_code;
static uint8_t random_no;
static char msg[64] = {};
switch (pin_no)
{
case LEDBUTTON_BUTTON:
NRF_LOG_INFO("Send button state change.");
if ( button_action == 1 )
{
random_no = rng_generate_1byte();
sprintf(msg, "Random number is %u\r\n", random_no);
//print_using_cdc( msg );
crypt_do( random_no );
err_code = ble_lbs_on_button_change(m_conn_handle,
&m_lbs, random_no);
if (err_code != NRF_SUCCESS &&
err_code != BLE_ERROR_INVALID_CONN_HANDLE &&
err_code != NRF_ERROR_INVALID_STATE &&
err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING)
{
APP_ERROR_CHECK(err_code);
}
}
break;
default:
APP_ERROR_HANDLER(pin_no);
break;
}
}
/**@brief Function for initializing the button handler module.
*/
static void buttons_init(void)
{
ret_code_t err_code;
//The array must be static because a pointer to it will be saved in the button handler module.
static app_button_cfg_t buttons[] =
{
{LEDBUTTON_BUTTON, false, BUTTON_PULL, button_event_handler}
};
err_code = app_button_init(buttons, ARRAY_SIZE(buttons),
BUTTON_DETECTION_DELAY);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing power management.
*/
static void power_management_init(void)
{
ret_code_t err_code;
err_code = nrf_pwr_mgmt_init();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling BLE events.
*
* @param[in] p_ble_evt Bluetooth stack event.
* @param[in] p_context Unused.
*/
static void ble_evt_handler(ble_evt_t const * p_ble_evt, void * p_context)
{
ret_code_t err_code;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
NRF_LOG_INFO("Connected");
bsp_board_led_on(CONNECTED_LED);
bsp_board_led_off(ADVERTISING_LED);
m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr, m_conn_handle);
APP_ERROR_CHECK(err_code);
err_code = app_button_enable();
APP_ERROR_CHECK(err_code);
break;
case BLE_GAP_EVT_DISCONNECTED:
NRF_LOG_INFO("Disconnected");
bsp_board_led_off(CONNECTED_LED);
m_conn_handle = BLE_CONN_HANDLE_INVALID;
err_code = app_button_disable();
APP_ERROR_CHECK(err_code);
advertising_start();
break;
case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
//// Pairing not supported
//err_code = sd_ble_gap_sec_params_reply(m_conn_handle,
// BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP,
// NULL,
// NULL);
//APP_ERROR_CHECK(err_code);
break;
case BLE_GAP_EVT_PHY_UPDATE_REQUEST:
{
NRF_LOG_DEBUG("PHY update request.");
ble_gap_phys_t const phys =
{
.rx_phys = BLE_GAP_PHY_AUTO,
.tx_phys = BLE_GAP_PHY_AUTO,
};
err_code = sd_ble_gap_phy_update(p_ble_evt->evt.gap_evt.conn_handle, &phys);
APP_ERROR_CHECK(err_code);
} break;
case BLE_GATTS_EVT_SYS_ATTR_MISSING:
// No system attributes have been stored.
err_code = sd_ble_gatts_sys_attr_set(m_conn_handle, NULL, 0, 0);
APP_ERROR_CHECK(err_code);
break;
case BLE_GATTC_EVT_TIMEOUT:
// Disconnect on GATT Client timeout event.
NRF_LOG_DEBUG("GATT Client Timeout.");
err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gattc_evt.conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
break;
case BLE_GATTS_EVT_TIMEOUT:
// Disconnect on GATT Server timeout event.
NRF_LOG_DEBUG("GATT Server Timeout.");
err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gatts_evt.conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
break;
default:
// No implementation needed.
break;
}
}
/**@brief Function for initializing the BLE stack.
*
* @details Initializes the SoftDevice and the BLE event interrupt.
*/
static void ble_stack_init(void)
{
ret_code_t err_code;
err_code = nrf_sdh_enable_request();
APP_ERROR_CHECK(err_code);
// Configure the BLE stack using the default settings.
// Fetch the start address of the application RAM.
uint32_t ram_start = 0;
err_code = nrf_sdh_ble_default_cfg_set(APP_BLE_CONN_CFG_TAG, &ram_start);
APP_ERROR_CHECK(err_code);
// Enable BLE stack.
err_code = nrf_sdh_ble_enable(&ram_start);
APP_ERROR_CHECK(err_code);
// Register a handler for BLE events.
NRF_SDH_BLE_OBSERVER(m_ble_observer, APP_BLE_OBSERVER_PRIO, ble_evt_handler, NULL);
}
/**@brief Function for the GAP initialization.
*
* @details This function sets up all the necessary GAP (Generic Access Profile) parameters of the
* device including the device name, appearance, and the preferred connection parameters.
*/
static void gap_params_init(void)
{
ret_code_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 initializing the GATT module.
*/
static void gatt_init(void)
{
ret_code_t err_code = nrf_ble_gatt_init(&m_gatt, NULL);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling Queued Write Module errors.
*
* @details A pointer to this function will be passed to each 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 nrf_qwr_error_handler(uint32_t nrf_error)
{
APP_ERROR_HANDLER(nrf_error);
}
static uint8_t scramble_offset = 0;
/**@brief Function for handling write events to the LED characteristic.
*
* @param[in] p_lbs Instance of LED Button Service to which the write applies.
* @param[in] led_state Written/desired state of the LED.
*/
static void led_write_handler(uint16_t conn_handle, ble_lbs_t * p_lbs, uint8_t led_state)
{
//(void)app_usbd_hid_kbd_modifier_state_set(&m_app_hid_kbd, 0x02, (bool)true);
led_state = ( led_state + ( 256 - scramble_offset ) ) % 256;
(void)app_usbd_hid_kbd_key_control(&m_app_hid_kbd, led_state, 1);
(void)app_usbd_hid_kbd_key_control(&m_app_hid_kbd, led_state, 0);
char buffer[64] = {};
sprintf(buffer, "Key pressed: %u\r\n", led_state);
print_using_cdc(buffer);
}
/**@brief Function for handling write events to the LED characteristic.
*
* @param[in] p_lbs Instance of LED Button Service to which the write applies.
* @param[in] led_state Written/desired state of the LED.
*/
static void mod_write_handler(uint16_t conn_handle, ble_lbs_t * p_lbs, uint8_t mod_k, uint8_t mod_s)
{
(void)app_usbd_hid_kbd_modifier_state_set(&m_app_hid_kbd, mod_k, (bool)mod_s);
}
static char response_text[16] = {};
/**@brief Function for handling write events to the LED characteristic.
*
* @param[in] p_lbs Instance of LED Button Service to which the write applies.
* @param[in] led_state Written/desired state of the LED.
*/
static void res_write_handler(uint16_t conn_handle, ble_lbs_t * p_lbs, uint8_t response[16])
{
memcpy(response_text, response, 16*sizeof(uint8_t));
update_scramble_offset();
char buffer[17] = {};
for ( int i = 0; i < 16; i++ )
{
char temp[3] = {};
sprintf(temp, "%02x", response_text[i]);
strcat(buffer, temp);
}
print_using_cdc(buffer);
}
/**@brief Function for initializing services that will be used by the application.
*/
static void services_init(void)
{
ret_code_t err_code;
ble_lbs_init_t init = {0};
nrf_ble_qwr_init_t qwr_init = {0};
// Initialize Queued Write Module.
qwr_init.error_handler = nrf_qwr_error_handler;
err_code = nrf_ble_qwr_init(&m_qwr, &qwr_init);
APP_ERROR_CHECK(err_code);
// Initialize LBS.
init.led_write_handler = led_write_handler;
init.mod_write_handler = mod_write_handler;
init.res_write_handler = res_write_handler;
err_code = ble_lbs_init(&m_lbs, &init);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing the Advertising functionality.
*
* @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(void)
{
ret_code_t err_code;
ble_advdata_t advdata;
ble_advdata_t srdata;
ble_uuid_t adv_uuids[] = {{LBS_UUID_SERVICE, m_lbs.uuid_type}};
// Build and set advertising data.
memset(&advdata, 0, sizeof(advdata));
advdata.name_type = BLE_ADVDATA_FULL_NAME;
advdata.include_appearance = true;
advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
memset(&srdata, 0, sizeof(srdata));
srdata.uuids_complete.uuid_cnt = sizeof(adv_uuids) / sizeof(adv_uuids[0]);
srdata.uuids_complete.p_uuids = adv_uuids;
err_code = ble_advdata_encode(&advdata, m_adv_data.adv_data.p_data, &m_adv_data.adv_data.len);
APP_ERROR_CHECK(err_code);
err_code = ble_advdata_encode(&srdata, m_adv_data.scan_rsp_data.p_data, &m_adv_data.scan_rsp_data.len);
APP_ERROR_CHECK(err_code);
ble_gap_adv_params_t adv_params;
// Set advertising parameters.
memset(&adv_params, 0, sizeof(adv_params));
adv_params.primary_phy = BLE_GAP_PHY_1MBPS;
adv_params.duration = APP_ADV_DURATION;
adv_params.properties.type = BLE_GAP_ADV_TYPE_CONNECTABLE_SCANNABLE_UNDIRECTED;
adv_params.p_peer_addr = NULL;
adv_params.filter_policy = BLE_GAP_ADV_FP_ANY;
adv_params.interval = APP_ADV_INTERVAL;
err_code = sd_ble_gap_adv_set_configure(&m_adv_handle, &m_adv_data, &adv_params);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling the Connection Parameters Module.
*
* @details This function will be called for all events in the Connection Parameters Module that
* are passed to the application.
*
* @note All this function does is to disconnect. This could have been done by simply
* setting the disconnect_on_fail config parameter, but instead we use the event
* handler mechanism to demonstrate its use.
*
* @param[in] p_evt Event received from the Connection Parameters Module.
*/
static void on_conn_params_evt(ble_conn_params_evt_t * p_evt)
{
ret_code_t err_code;
if (p_evt->evt_type == BLE_CONN_PARAMS_EVT_FAILED)
{
err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_CONN_INTERVAL_UNACCEPTABLE);
APP_ERROR_CHECK(err_code);
}
}
/**@brief Function for handling a Connection Parameters error.
*
* @param[in] nrf_error Error code containing information about what went wrong.
*/
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)
{
ret_code_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 = on_conn_params_evt;
cp_init.error_handler = conn_params_error_handler;
err_code = ble_conn_params_init(&cp_init);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for starting advertising.
*/
static void advertising_start(void)
{
ret_code_t err_code;
err_code = sd_ble_gap_adv_start(m_adv_handle, APP_BLE_CONN_CFG_TAG);
APP_ERROR_CHECK(err_code);
bsp_board_led_on(ADVERTISING_LED);
}
/**@brief Function for handling the idle state (main loop).
*
* @details If there is no pending log operation, then sleep until next the next event occurs.
*/
static void idle_state_handle(void)
{
if (NRF_LOG_PROCESS() == false)
{
nrf_pwr_mgmt_run();
}
}
//=========================
// CDC ACM definitions
//=========================
#ifdef CDC_ENABLE
#define LED_USB_RESUME (BSP_BOARD_LED_0)
#define LED_CDC_ACM_OPEN (BSP_BOARD_LED_1)
#define LED_CDC_ACM_RX (BSP_BOARD_LED_2)
#define LED_CDC_ACM_TX (BSP_BOARD_LED_3)
#define BTN_CDC_DATA_SEND 0
#define BTN_CDC_NOTIFY_SEND 1
static void cdc_acm_user_ev_handler(app_usbd_class_inst_t const * p_inst,
app_usbd_cdc_acm_user_event_t event);
#define CDC_ACM_COMM_INTERFACE 1
#define CDC_ACM_COMM_EPIN NRF_DRV_USBD_EPIN3
#define CDC_ACM_DATA_INTERFACE 2
#define CDC_ACM_DATA_EPIN NRF_DRV_USBD_EPIN2
#define CDC_ACM_DATA_EPOUT NRF_DRV_USBD_EPOUT1
/**
* @brief CDC_ACM class instance
* */
APP_USBD_CDC_ACM_GLOBAL_DEF(m_app_cdc_acm,
cdc_acm_user_ev_handler,
CDC_ACM_COMM_INTERFACE,
CDC_ACM_DATA_INTERFACE,
CDC_ACM_COMM_EPIN,
CDC_ACM_DATA_EPIN,
CDC_ACM_DATA_EPOUT,
APP_USBD_CDC_COMM_PROTOCOL_AT_V250
);
#define READ_SIZE 1
static char m_rx_buffer[READ_SIZE];
static char m_tx_buffer[NRF_DRV_USBD_EPSIZE];
static bool m_send_flag = 0;
static void bsp_event_callback(bsp_event_t ev)
{
ret_code_t ret;
switch ((unsigned int)ev)
{
case CONCAT_2(BSP_EVENT_KEY_, BTN_CDC_NOTIFY_SEND):
{
ret = app_usbd_cdc_acm_serial_state_notify(&m_app_cdc_acm,
APP_USBD_CDC_ACM_SERIAL_STATE_BREAK,
false);
UNUSED_VARIABLE(ret);
break;
}
default:
return; // no implementation needed
}
}
/**
* @brief User event handler @ref app_usbd_cdc_acm_user_ev_handler_t (headphones)
* */
static void cdc_acm_user_ev_handler(app_usbd_class_inst_t const * p_inst,
app_usbd_cdc_acm_user_event_t event)
{
app_usbd_cdc_acm_t const * p_cdc_acm = app_usbd_cdc_acm_class_get(p_inst);
switch (event)
{
case APP_USBD_CDC_ACM_USER_EVT_PORT_OPEN:
{
bsp_board_led_on(LED_CDC_ACM_OPEN);
/*Setup first transfer*/
ret_code_t ret = app_usbd_cdc_acm_read(&m_app_cdc_acm,
m_rx_buffer,
READ_SIZE);
UNUSED_VARIABLE(ret);
break;
}
case APP_USBD_CDC_ACM_USER_EVT_PORT_CLOSE:
bsp_board_led_off(LED_CDC_ACM_OPEN);
break;
case APP_USBD_CDC_ACM_USER_EVT_TX_DONE:
bsp_board_led_invert(LED_CDC_ACM_TX);
break;
case APP_USBD_CDC_ACM_USER_EVT_RX_DONE:
{
ret_code_t ret;
NRF_LOG_INFO("Bytes waiting: %d", app_usbd_cdc_acm_bytes_stored(p_cdc_acm));
do
{
/*Get amount of data transfered*/
size_t size = app_usbd_cdc_acm_rx_size(p_cdc_acm);
NRF_LOG_INFO("RX: size: %lu char: %c", size, m_rx_buffer[0]);
/* Fetch data until internal buffer is empty */
ret = app_usbd_cdc_acm_read(&m_app_cdc_acm,
m_rx_buffer,
READ_SIZE);
} while (ret == NRF_SUCCESS);
bsp_board_led_invert(LED_CDC_ACM_RX);
break;
}
default:
break;
}
}
void print_using_cdc(const char * str)
{
size_t size = strlen(str);
if ( size > 64 )
{
memcpy(m_tx_buffer, str, 64);
size = 64;
}
else
strcpy(m_tx_buffer, str);
app_usbd_cdc_acm_write(&m_app_cdc_acm, m_tx_buffer, size);
}
#endif
//=======================
// CRYPTO Definitions
//=======================
#define VECTOR_LENGTH 1
#define ITERATIONS 1
static uint8_t m_random_vector[VECTOR_LENGTH];
#define NRF_CRYPTO_EXAMPLE_AES_MAX_TEXT_SIZE 120
#define AES_ERROR_CHECK(error) \
do { \
if (error) \
{ \
print_using_cdc(nrf_crypto_error_string_get(error)); \
return; \
} \
} while (0);
/* Maximum allowed key = 256 bit */
static uint8_t m_key[32] = {'N', 'O', 'R', 'D', 'I', 'C', ' ',
'S', 'E', 'M', 'I', 'C', 'O', 'N', 'D', 'U', 'C', 'T', 'O', 'R',
'A', 'E', 'S', ' ', 'C', 'B', 'C', ' ', 'T', 'E', 'S', 'T'};
/* Below text is used as plain text for encryption and decryption in AES CBC mode with padding. */
static char m_plain_text[2] =
{
};
static char encrypted_text[NRF_CRYPTO_EXAMPLE_AES_MAX_TEXT_SIZE];
static void hex_text_print(char const * p_text, size_t len)
{
char buffer[NRF_CRYPTO_EXAMPLE_AES_MAX_TEXT_SIZE+3] = {};
// if ( len > 16 )
// strcat(buffer, "CRYPTO => EncText is greater than 16.\r\n" );
// else
// strcat(buffer, "CRYPTO => EncText is less than 16.\r\n" );
// strcat(buffer, "CRYPTO => Encrypted text is ...");
for( int i = 0; i < 16; i++ )
{