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Diffstat (limited to 'crypto/main.c')
| -rw-r--r-- | crypto/main.c | 1504 |
1 files changed, 1504 insertions, 0 deletions
diff --git a/crypto/main.c b/crypto/main.c new file mode 100644 index 0000000..2a1c05c --- /dev/null +++ b/crypto/main.c @@ -0,0 +1,1504 @@ +/* Copyright (c) 2012 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.
+ *
+ */
+
+/** @file
+ *
+ * @defgroup ble_sdk_app_hids_keyboard_main main.c
+ * @{
+ * @ingroup ble_sdk_app_hids_keyboard
+ * @brief HID Keyboard Sample Application main file.
+ *
+ * This file contains is the source code for a sample application using the HID, Battery and Device
+ * Information Services for implementing a simple keyboard functionality.
+ * Pressing Button 0 will send text 'hello' to the connected peer. On receiving output report,
+ * it toggles the state of LED 2 on the mother board based on whether or not Caps Lock is on.
+ * This application uses the @ref app_scheduler.
+ *
+ * Also it would accept pairing requests from any peer device.
+ */
+
+#include <stdint.h>
+#include <string.h>
+#include <sdk/libraries/util/nordic_common.h>
+#include <sdk/device/nrf.h>
+#include <sdk/libraries/util/nrf_assert.h>
+#include <sdk/libraries/util/app_error.h>
+#include <sdk/drivers_nrf/hal/nrf_gpio.h>
+#include <sdk/device/nrf51_bitfields.h>
+#include <sdk/softdevice/s130/headers/ble.h>
+#include <sdk/softdevice/s130/headers/ble_hci.h>
+#include <sdk/ble/common/ble_srv_common.h>
+#include <sdk/ble/ble_advertising/ble_advertising.h>
+#include <sdk/ble/common/ble_advdata.h>
+#include <sdk/ble/ble_services/ble_hids/ble_hids.h>
+#include <sdk/ble/ble_services/ble_bas/ble_bas.h>
+#include <sdk/ble/ble_services/ble_dis/ble_dis.h>
+#include <sdk/ble/common/ble_conn_params.h>
+#include "bsp/bsp.h"
+#include <sdk/libraries/sensorsim/sensorsim.h>
+#include "bsp/bsp_btn_ble.h"
+#include <sdk/libraries/scheduler/app_scheduler.h>
+#include <sdk/softdevice/common/softdevice_handler/softdevice_handler_appsh.h>
+#include <sdk/libraries/timer/app_timer_appsh.h>
+#include <sdk/ble/device_manager/device_manager.h>
+#include <sdk/libraries/button/app_button.h>
+#include <sdk/drivers_nrf/pstorage/pstorage.h>
+#include <sdk/libraries/trace/app_trace.h>
+
+#if BUTTONS_NUMBER <2
+#error "Not enough resources on board"
+#endif
+
+#define IS_SRVC_CHANGED_CHARACT_PRESENT 0 /**< Include or not the service_changed characteristic. if not enabled, the server's database cannot be changed for the lifetime of the device*/
+
+#define UART_TX_BUF_SIZE 256 /**< UART TX buffer size. */
+#define UART_RX_BUF_SIZE 1 /**< UART RX buffer size. */
+
+#define KEY_PRESS_BUTTON_ID 0 /**< Button used as Keyboard key press. */
+#define SHIFT_BUTTON_ID 1 /**< Button used as 'SHIFT' Key. */
+
+#define DEVICE_NAME "Nordic_Keyboard" /**< Name of device. Will be included in the advertising data. */
+#define MANUFACTURER_NAME "NordicSemiconductor" /**< Manufacturer. Will be passed to Device Information Service. */
+
+#define APP_TIMER_PRESCALER 0 /**< Value of the RTC1 PRESCALER register. */
+#define APP_TIMER_MAX_TIMERS (4+BSP_APP_TIMERS_NUMBER) /**< Maximum number of simultaneously created timers. */
+#define APP_TIMER_OP_QUEUE_SIZE 4 /**< Size of timer operation queues. */
+
+#define BATTERY_LEVEL_MEAS_INTERVAL APP_TIMER_TICKS(2000, APP_TIMER_PRESCALER) /**< Battery level measurement interval (ticks). */
+#define MIN_BATTERY_LEVEL 81 /**< Minimum simulated battery level. */
+#define MAX_BATTERY_LEVEL 100 /**< Maximum simulated battery level. */
+#define BATTERY_LEVEL_INCREMENT 1 /**< Increment between each simulated battery level measurement. */
+
+#define PNP_ID_VENDOR_ID_SOURCE 0x02 /**< Vendor ID Source. */
+#define PNP_ID_VENDOR_ID 0x1915 /**< Vendor ID. */
+#define PNP_ID_PRODUCT_ID 0xEEEE /**< Product ID. */
+#define PNP_ID_PRODUCT_VERSION 0x0001 /**< Product Version. */
+
+#define APP_ADV_FAST_INTERVAL 0x0028 /**< Fast advertising interval (in units of 0.625 ms. This value corresponds to 25 ms.). */
+#define APP_ADV_SLOW_INTERVAL 0x0C80 /**< Slow advertising interval (in units of 0.625 ms. This value corrsponds to 2 seconds). */
+#define APP_ADV_FAST_TIMEOUT 30 /**< The duration of the fast advertising period (in seconds). */
+#define APP_ADV_SLOW_TIMEOUT 180 /**< The duration of the slow advertising period (in seconds). */
+
+/*lint -emacro(524, MIN_CONN_INTERVAL) // Loss of precision */
+#define MIN_CONN_INTERVAL MSEC_TO_UNITS(7.5, UNIT_1_25_MS) /**< Minimum connection interval (7.5 ms) */
+#define MAX_CONN_INTERVAL MSEC_TO_UNITS(30, UNIT_1_25_MS) /**< Maximum connection interval (30 ms). */
+#define SLAVE_LATENCY 6 /**< Slave latency. */
+#define CONN_SUP_TIMEOUT MSEC_TO_UNITS(430, UNIT_10_MS) /**< Connection supervisory timeout (430 ms). */
+
+#define FIRST_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(5000, APP_TIMER_PRESCALER) /**< Time from initiating event (connect or start of notification) to first time sd_ble_gap_conn_param_update is called (5 seconds). */
+#define NEXT_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(30000, APP_TIMER_PRESCALER) /**< Time between each call to sd_ble_gap_conn_param_update after the first call (30 seconds). */
+#define MAX_CONN_PARAMS_UPDATE_COUNT 3 /**< Number of attempts before giving up the connection parameter negotiation. */
+
+#define SEC_PARAM_BOND 1 /**< 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 OUTPUT_REPORT_INDEX 0 /**< Index of Output Report. */
+#define OUTPUT_REPORT_MAX_LEN 1 /**< Maximum length of Output Report. */
+#define INPUT_REPORT_KEYS_INDEX 0 /**< Index of Input Report. */
+#define OUTPUT_REPORT_BIT_MASK_CAPS_LOCK 0x02 /**< CAPS LOCK bit in Output Report (based on 'LED Page (0x08)' of the Universal Serial Bus HID Usage Tables). */
+#define INPUT_REP_REF_ID 0 /**< Id of reference to Keyboard Input Report. */
+#define OUTPUT_REP_REF_ID 0 /**< Id of reference to Keyboard Output Report. */
+
+#define APP_FEATURE_NOT_SUPPORTED BLE_GATT_STATUS_ATTERR_APP_BEGIN + 2 /**< Reply when unsupported features are requested. */
+
+#define MAX_BUFFER_ENTRIES 5 /**< Number of elements that can be enqueued */
+
+#define BASE_USB_HID_SPEC_VERSION 0x0101 /**< Version number of base USB HID Specification implemented by this application. */
+
+#define INPUT_REPORT_KEYS_MAX_LEN 8 /**< Maximum length of the Input Report characteristic. */
+
+#define DEAD_BEEF 0xDEADBEEF /**< Value used as error code on stack dump, can be used to identify stack location on stack unwind. */
+
+#define SCHED_MAX_EVENT_DATA_SIZE MAX(APP_TIMER_SCHED_EVT_SIZE,\
+ BLE_STACK_HANDLER_SCHED_EVT_SIZE) /**< Maximum size of scheduler events. */
+#define SCHED_QUEUE_SIZE 10 /**< Maximum number of events in the scheduler queue. */
+
+#define MODIFIER_KEY_POS 0 /**< Position of the modifier byte in the Input Report. */
+#define SCAN_CODE_POS 2 /**< This macro indicates the start position of the key scan code in a HID Report. As per the document titled 'Device Class Definition for Human Interface Devices (HID) V1.11, each report shall have one modifier byte followed by a reserved constant byte and then the key scan code. */
+#define SHIFT_KEY_CODE 0x02 /**< Key code indicating the press of the Shift Key. */
+
+#define MAX_KEYS_IN_ONE_REPORT (INPUT_REPORT_KEYS_MAX_LEN - SCAN_CODE_POS) /**< Maximum number of key presses that can be sent in one Input Report. */
+
+
+/**Buffer queue access macros
+ *
+ * @{ */
+/** Initialization of buffer list */
+#define BUFFER_LIST_INIT() \
+ do \
+ { \
+ buffer_list.rp = 0; \
+ buffer_list.wp = 0; \
+ buffer_list.count = 0; \
+ } while (0)
+
+/** Provide status of data list is full or not */
+#define BUFFER_LIST_FULL()\
+ ((MAX_BUFFER_ENTRIES == buffer_list.count - 1) ? true : false)
+
+/** Provides status of buffer list is empty or not */
+#define BUFFER_LIST_EMPTY()\
+ ((0 == buffer_list.count) ? true : false)
+
+#define BUFFER_ELEMENT_INIT(i)\
+ do \
+ { \
+ buffer_list.buffer[(i)].p_data = NULL; \
+ } while (0)
+
+/** @} */
+
+typedef enum
+{
+ BLE_NO_ADV, /**< No advertising running. */
+ BLE_DIRECTED_ADV, /**< Direct advertising to the latest central. */
+ BLE_FAST_ADV_WHITELIST, /**< Advertising with whitelist. */
+ BLE_FAST_ADV, /**< Fast advertising running. */
+ BLE_SLOW_ADV, /**< Slow advertising running. */
+ BLE_SLEEP, /**< Go to system-off. */
+} ble_advertising_mode_t;
+
+/** Abstracts buffer element */
+typedef struct hid_key_buffer
+{
+ uint8_t data_offset; /**< Max Data that can be buffered for all entries */
+ uint8_t data_len; /**< Total length of data */
+ uint8_t * p_data; /**< Scanned key pattern */
+ ble_hids_t * p_instance; /**< Identifies peer and service instance */
+}buffer_entry_t;
+
+STATIC_ASSERT(sizeof(buffer_entry_t) % 4 == 0);
+
+/** Circular buffer list */
+typedef struct
+{
+ buffer_entry_t buffer[MAX_BUFFER_ENTRIES]; /**< Maximum number of entries that can enqueued in the list */
+ uint8_t rp; /**< Index to the read location */
+ uint8_t wp; /**< Index to write location */
+ uint8_t count; /**< Number of elements in the list */
+}buffer_list_t;
+
+STATIC_ASSERT(sizeof(buffer_list_t) % 4 == 0);
+
+static ble_hids_t m_hids; /**< Structure used to identify the HID service. */
+static ble_bas_t m_bas; /**< Structure used to identify the battery service. */
+static bool m_in_boot_mode = false; /**< Current protocol mode. */
+static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */
+
+static sensorsim_cfg_t m_battery_sim_cfg; /**< Battery Level sensor simulator configuration. */
+static sensorsim_state_t m_battery_sim_state; /**< Battery Level sensor simulator state. */
+
+static app_timer_id_t m_battery_timer_id; /**< Battery timer. */
+
+static dm_application_instance_t m_app_handle; /**< Application identifier allocated by device manager. */
+static dm_handle_t m_bonded_peer_handle; /**< Device reference handle to the current bonded central. */
+static bool m_caps_on = false; /**< Variable to indicate if Caps Lock is turned on. */
+
+static ble_uuid_t m_adv_uuids[] = {{BLE_UUID_HUMAN_INTERFACE_DEVICE_SERVICE, BLE_UUID_TYPE_BLE}};
+
+static uint8_t m_sample_key_press_scan_str[] = /**< Key pattern to be sent when the key press button has been pushed. */
+{
+ 0x0b, /* Key h */
+ 0x08, /* Key e */
+ 0x0f, /* Key l */
+ 0x0f, /* Key l */
+ 0x12, /* Key o */
+ 0x28 /* Key Return */
+};
+
+static uint8_t m_caps_on_key_scan_str[] = /**< Key pattern to be sent when the output report has been written with the CAPS LOCK bit set. */
+{
+ 0x06, /* Key C */
+ 0x04, /* Key a */
+ 0x13, /* Key p */
+ 0x16, /* Key s */
+ 0x12, /* Key o */
+ 0x11, /* Key n */
+};
+
+static uint8_t m_caps_off_key_scan_str[] = /**< Key pattern to be sent when the output report has been written with the CAPS LOCK bit cleared. */
+{
+ 0x06, /* Key C */
+ 0x04, /* Key a */
+ 0x13, /* Key p */
+ 0x16, /* Key s */
+ 0x12, /* Key o */
+ 0x09, /* Key f */
+};
+
+
+/** List to enqueue not just data to be sent, but also related information like the handle, connection handle etc */
+static buffer_list_t buffer_list;
+
+static void on_hids_evt(ble_hids_t * p_hids, ble_hids_evt_t * p_evt);
+
+/**@brief Callback function for asserts in the SoftDevice.
+ *
+ * @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] 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 handling Service 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 service_error_handler(uint32_t nrf_error)
+{
+ APP_ERROR_HANDLER(nrf_error);
+}
+
+
+/**@brief Function for handling advertising errors.
+ *
+ * @param[in] nrf_error Error code containing information about what went wrong.
+ */
+static void ble_advertising_error_handler(uint32_t nrf_error)
+{
+ APP_ERROR_HANDLER(nrf_error);
+}
+
+
+/**@brief Function for performing a battery measurement, and update the Battery Level characteristic in the Battery Service.
+ */
+static void battery_level_update(void)
+{
+ uint32_t err_code;
+ uint8_t battery_level;
+
+ battery_level = (uint8_t)sensorsim_measure(&m_battery_sim_state, &m_battery_sim_cfg);
+
+ err_code = ble_bas_battery_level_update(&m_bas, battery_level);
+ if ((err_code != NRF_SUCCESS) &&
+ (err_code != NRF_ERROR_INVALID_STATE) &&
+ (err_code != BLE_ERROR_NO_TX_BUFFERS) &&
+ (err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING)
+ )
+ {
+ APP_ERROR_HANDLER(err_code);
+ }
+}
+
+
+/**@brief Function for handling the Battery measurement timer timeout.
+ *
+ * @details This function will be called each time the battery level measurement timer expires.
+ *
+ * @param[in] p_context Pointer used for passing some arbitrary information (context) from the
+ * app_start_timer() call to the timeout handler.
+ */
+static void battery_level_meas_timeout_handler(void * p_context)
+{
+ UNUSED_PARAMETER(p_context);
+ battery_level_update();
+}
+
+/**@brief Function for the Timer initialization.
+ *
+ * @details Initializes the timer module.
+ */
+static void timers_init(void)
+{
+ uint32_t err_code;
+
+ // Initialize timer module, making it use the scheduler.
+ APP_TIMER_APPSH_INIT(APP_TIMER_PRESCALER, APP_TIMER_MAX_TIMERS, APP_TIMER_OP_QUEUE_SIZE, true);
+
+ // Create battery timer.
+ err_code = app_timer_create(&m_battery_timer_id,
+ APP_TIMER_MODE_REPEATED,
+ battery_level_meas_timeout_handler);
+ APP_ERROR_CHECK(err_code);
+}
+
+
+/**@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)
+{
+ 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);
+
+ err_code = sd_ble_gap_appearance_set(BLE_APPEARANCE_HID_KEYBOARD);
+ 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 Device Information Service.
+ */
+static void dis_init(void)
+{
+ uint32_t err_code;
+ ble_dis_init_t dis_init_obj;
+ ble_dis_pnp_id_t pnp_id;
+
+ pnp_id.vendor_id_source = PNP_ID_VENDOR_ID_SOURCE;
+ pnp_id.vendor_id = PNP_ID_VENDOR_ID;
+ pnp_id.product_id = PNP_ID_PRODUCT_ID;
+ pnp_id.product_version = PNP_ID_PRODUCT_VERSION;
+
+ memset(&dis_init_obj, 0, sizeof(dis_init_obj));
+
+ ble_srv_ascii_to_utf8(&dis_init_obj.manufact_name_str, MANUFACTURER_NAME);
+ dis_init_obj.p_pnp_id = &pnp_id;
+
+ BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&dis_init_obj.dis_attr_md.read_perm);
+ BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&dis_init_obj.dis_attr_md.write_perm);
+
+ err_code = ble_dis_init(&dis_init_obj);
+ APP_ERROR_CHECK(err_code);
+}
+
+
+/**@brief Function for initializing Battery Service.
+ */
+static void bas_init(void)
+{
+ uint32_t err_code;
+ ble_bas_init_t bas_init_obj;
+
+ memset(&bas_init_obj, 0, sizeof(bas_init_obj));
+
+ bas_init_obj.evt_handler = NULL;
+ bas_init_obj.support_notification = true;
+ bas_init_obj.p_report_ref = NULL;
+ bas_init_obj.initial_batt_level = 100;
+
+ BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&bas_init_obj.battery_level_char_attr_md.cccd_write_perm);
+ BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&bas_init_obj.battery_level_char_attr_md.read_perm);
+ BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&bas_init_obj.battery_level_char_attr_md.write_perm);
+
+ BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&bas_init_obj.battery_level_report_read_perm);
+
+ err_code = ble_bas_init(&m_bas, &bas_init_obj);
+ APP_ERROR_CHECK(err_code);
+}
+
+
+/**@brief Function for initializing HID Service.
+ */
+static void hids_init(void)
+{
+ uint32_t err_code;
+ ble_hids_init_t hids_init_obj;
+ ble_hids_inp_rep_init_t input_report_array[1];
+ ble_hids_inp_rep_init_t * p_input_report;
+ ble_hids_outp_rep_init_t output_report_array[1];
+ ble_hids_outp_rep_init_t * p_output_report;
+ uint8_t hid_info_flags;
+
+ memset((void *)input_report_array, 0, sizeof(ble_hids_inp_rep_init_t));
+ memset((void *)output_report_array, 0, sizeof(ble_hids_outp_rep_init_t));
+
+ static uint8_t report_map_data[] =
+ {
+ 0x05, 0x01, // Usage Page (Generic Desktop)
+ 0x09, 0x06, // Usage (Keyboard)
+ 0xA1, 0x01, // Collection (Application)
+ 0x05, 0x07, // Usage Page (Key Codes)
+ 0x19, 0xe0, // Usage Minimum (224)
+ 0x29, 0xe7, // Usage Maximum (231)
+ 0x15, 0x00, // Logical Minimum (0)
+ 0x25, 0x01, // Logical Maximum (1)
+ 0x75, 0x01, // Report Size (1)
+ 0x95, 0x08, // Report Count (8)
+ 0x81, 0x02, // Input (Data, Variable, Absolute)
+
+ 0x95, 0x01, // Report Count (1)
+ 0x75, 0x08, // Report Size (8)
+ 0x81, 0x01, // Input (Constant) reserved byte(1)
+
+ 0x95, 0x05, // Report Count (5)
+ 0x75, 0x01, // Report Size (1)
+ 0x05, 0x08, // Usage Page (Page# for LEDs)
+ 0x19, 0x01, // Usage Minimum (1)
+ 0x29, 0x05, // Usage Maximum (5)
+ 0x91, 0x02, // Output (Data, Variable, Absolute), Led report
+ 0x95, 0x01, // Report Count (1)
+ 0x75, 0x03, // Report Size (3)
+ 0x91, 0x01, // Output (Data, Variable, Absolute), Led report padding
+
+ 0x95, 0x06, // Report Count (6)
+ 0x75, 0x08, // Report Size (8)
+ 0x15, 0x00, // Logical Minimum (0)
+ 0x25, 0x65, // Logical Maximum (101)
+ 0x05, 0x07, // Usage Page (Key codes)
+ 0x19, 0x00, // Usage Minimum (0)
+ 0x29, 0x65, // Usage Maximum (101)
+ 0x81, 0x00, // Input (Data, Array) Key array(6 bytes)
+
+ 0x09, 0x05, // Usage (Vendor Defined)
+ 0x15, 0x00, // Logical Minimum (0)
+ 0x26, 0xFF, 0x00, // Logical Maximum (255)
+ 0x75, 0x08, // Report Count (2)
+ 0x95, 0x02, // Report Size (8 bit)
+ 0xB1, 0x02, // Feature (Data, Variable, Absolute)
+
+ 0xC0 // End Collection (Application)
+ };
+
+ // Initialize HID Service
+ p_input_report = &input_report_array[INPUT_REPORT_KEYS_INDEX];
+ p_input_report->max_len = INPUT_REPORT_KEYS_MAX_LEN;
+ p_input_report->rep_ref.report_id = INPUT_REP_REF_ID;
+ p_input_report->rep_ref.report_type = BLE_HIDS_REP_TYPE_INPUT;
+
+ BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&p_input_report->security_mode.cccd_write_perm);
+ BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&p_input_report->security_mode.read_perm);
+ BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&p_input_report->security_mode.write_perm);
+
+ p_output_report = &output_report_array[OUTPUT_REPORT_INDEX];
+ p_output_report->max_len = OUTPUT_REPORT_MAX_LEN;
+ p_output_report->rep_ref.report_id = OUTPUT_REP_REF_ID;
+ p_output_report->rep_ref.report_type = BLE_HIDS_REP_TYPE_OUTPUT;
+
+ BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&p_output_report->security_mode.read_perm);
+ BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&p_output_report->security_mode.write_perm);
+
+ hid_info_flags = HID_INFO_FLAG_REMOTE_WAKE_MSK | HID_INFO_FLAG_NORMALLY_CONNECTABLE_MSK;
+
+ memset(&hids_init_obj, 0, sizeof(hids_init_obj));
+
+ hids_init_obj.evt_handler = on_hids_evt;
+ hids_init_obj.error_handler = service_error_handler;
+ hids_init_obj.is_kb = true;
+ hids_init_obj.is_mouse = false;
+ hids_init_obj.inp_rep_count = 1;
+ hids_init_obj.p_inp_rep_array = input_report_array;
+ hids_init_obj.outp_rep_count = 1;
+ hids_init_obj.p_outp_rep_array = output_report_array;
+ hids_init_obj.feature_rep_count = 0;
+ hids_init_obj.p_feature_rep_array = NULL;
+ hids_init_obj.rep_map.data_len = sizeof(report_map_data);
+ hids_init_obj.rep_map.p_data = report_map_data;
+ hids_init_obj.hid_information.bcd_hid = BASE_USB_HID_SPEC_VERSION;
+ hids_init_obj.hid_information.b_country_code = 0;
+ hids_init_obj.hid_information.flags = hid_info_flags;
+ hids_init_obj.included_services_count = 0;
+ hids_init_obj.p_included_services_array = NULL;
+
+ BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&hids_init_obj.rep_map.security_mode.read_perm);
+ BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&hids_init_obj.rep_map.security_mode.write_perm);
+ BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&hids_init_obj.hid_information.security_mode.read_perm);
+ BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&hids_init_obj.hid_information.security_mode.write_perm);
+
+ BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(
+ &hids_init_obj.security_mode_boot_kb_inp_rep.cccd_write_perm);
+ BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&hids_init_obj.security_mode_boot_kb_inp_rep.read_perm);
+ BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&hids_init_obj.security_mode_boot_kb_inp_rep.write_perm);
+ BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&hids_init_obj.security_mode_boot_kb_outp_rep.read_perm);
+ BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&hids_init_obj.security_mode_boot_kb_outp_rep.write_perm);
+
+ BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&hids_init_obj.security_mode_protocol.read_perm);
+ BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&hids_init_obj.security_mode_protocol.write_perm);
+ BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&hids_init_obj.security_mode_ctrl_point.read_perm);
+ BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&hids_init_obj.security_mode_ctrl_point.write_perm);
+
+ err_code = ble_hids_init(&m_hids, &hids_init_obj);
+ APP_ERROR_CHECK(err_code);
+}
+
+
+/**@brief Function for initializing services that will be used by the application.
+ */
+static void services_init(void)
+{
+ dis_init();
+ bas_init();
+ hids_init();
+}
+
+
+/**@brief Function for initializing the battery sensor simulator.
+ */
+static void sensor_simulator_init(void)
+{
+ m_battery_sim_cfg.min = MIN_BATTERY_LEVEL;
+ m_battery_sim_cfg.max = MAX_BATTERY_LEVEL;
+ m_battery_sim_cfg.incr = BATTERY_LEVEL_INCREMENT;
+ m_battery_sim_cfg.start_at_max = true;
+
+ sensorsim_init(&m_battery_sim_state, &m_battery_sim_cfg);
+}
+
+
+/**@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)
+{
+ 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 starting timers.
+ */
+static void timers_start(void)
+{
+ uint32_t err_code;
+
+ err_code = app_timer_start(m_battery_timer_id, BATTERY_LEVEL_MEAS_INTERVAL, NULL);
+ APP_ERROR_CHECK(err_code);
+}
+
+
+
+/** @brief Function for checking if the Shift key is pressed.
+ *
+ * @returns true if the SHIFT_BUTTON is pressed. false otherwise.
+ */
+static bool is_shift_key_pressed(void)
+{
+ bool result;
+ uint32_t err_code = bsp_button_is_pressed(SHIFT_BUTTON_ID,&result);
+ APP_ERROR_CHECK(err_code);
+ return result;
+}
+
+
+/**@brief Function for transmitting a key scan Press & Release Notification.
+ *
+ * @warning This handler is an example only. You need to analyze how you wish to send the key
+ * release.
+ *
+ * @param[in] p_instance Identifies the service for which Key Notifications are requested.
+ * @param[in] p_key_pattern Pointer to key pattern.
+ * @param[in] pattern_len Length of key pattern. 0 < pattern_len < 7.
+ * @param[in] pattern_offset Offset applied to Key Pattern for transmission.
+ * @param[out] actual_len Provides actual length of Key Pattern transmitted, making buffering of
+ * rest possible if needed.
+ * @return NRF_SUCCESS on success, BLE_ERROR_NO_TX_BUFFERS in case transmission could not be
+ * completed due to lack of transmission buffer or other error codes indicating reason
+ * for failure.
+ *
+ * @note In case of BLE_ERROR_NO_TX_BUFFERS, remaining pattern that could not be transmitted
+ * can be enqueued \ref buffer_enqueue function.
+ * In case a pattern of 'cofFEe' is the p_key_pattern, with pattern_len as 6 and
+ * pattern_offset as 0, the notifications as observed on the peer side would be
+ * 1> 'c', 'o', 'f', 'F', 'E', 'e'
+ * 2> - , 'o', 'f', 'F', 'E', 'e'
+ * 3> - , -, 'f', 'F', 'E', 'e'
+ * 4> - , -, -, 'F', 'E', 'e'
+ * 5> - , -, -, -, 'E', 'e'
+ * 6> - , -, -, -, -, 'e'
+ * 7> - , -, -, -, -, -
+ * Here, '-' refers to release, 'c' refers to the key character being transmitted.
+ * Therefore 7 notifications will be sent.
+ * In case an offset of 4 was provided, the pattern notifications sent will be from 5-7
+ * will be transmitted.
+ */
+static uint32_t send_key_scan_press_release(ble_hids_t * p_hids,
+ uint8_t * p_key_pattern,
+ uint16_t pattern_len,
+ uint16_t pattern_offset,
+ uint16_t * p_actual_len)
+{
+ uint32_t err_code;
+ uint16_t offset;
+ uint16_t data_len;
+ uint8_t data[INPUT_REPORT_KEYS_MAX_LEN];
+
+ // HID Report Descriptor enumerates an array of size 6, the pattern hence shall not be any
+ // longer than this.
+ STATIC_ASSERT((INPUT_REPORT_KEYS_MAX_LEN - 2) == 6);
+
+ ASSERT(pattern_len <= (INPUT_REPORT_KEYS_MAX_LEN - 2));
+
+ offset = pattern_offset;
+ data_len = pattern_len;
+
+ do
+ {
+ // Reset the data buffer.
+ memset(data, 0, sizeof(data));
+
+ // Copy the scan code.
+ memcpy(data + SCAN_CODE_POS + offset, p_key_pattern + offset, data_len - offset);
+
+ if (is_shift_key_pressed())
+ {
+ data[MODIFIER_KEY_POS] |= SHIFT_KEY_CODE;
+ }
+
+ if (!m_in_boot_mode)
+ {
+ err_code = ble_hids_inp_rep_send(p_hids,
+ INPUT_REPORT_KEYS_INDEX,
+ INPUT_REPORT_KEYS_MAX_LEN,
+ data);
+ }
+ else
+ {
+ err_code = ble_hids_boot_kb_inp_rep_send(p_hids,
+ INPUT_REPORT_KEYS_MAX_LEN,
+ data);
+ }
+
+ if (err_code != NRF_SUCCESS)
+ {
+ break;
+ }
+
+ offset++;
+ } while (offset <= data_len);
+
+ *p_actual_len = offset;
+
+ return err_code;
+}
+
+
+/**@brief Function for initializing the buffer queue used to key events that could not be
+ * transmitted
+ *
+ * @warning This handler is an example only. You need to analyze how you wish to buffer or buffer at
+ * all.
+ *
+ * @note In case of HID keyboard, a temporary buffering could be employed to handle scenarios
+ * where encryption is not yet enabled or there was a momentary link loss or there were no
+ * Transmit buffers.
+ */
+static void buffer_init(void)
+{
+ uint32_t buffer_count;
+
+ BUFFER_LIST_INIT();
+
+ for (buffer_count = 0; buffer_count < MAX_BUFFER_ENTRIES; buffer_count++)
+ {
+ BUFFER_ELEMENT_INIT(buffer_count);
+ }
+}
+
+
+/**@brief Function for enqueuing key scan patterns that could not be transmitted either completely
+ * or partially.
+ *
+ * @warning This handler is an example only. You need to analyze how you wish to send the key
+ * release.
+ *
+ * @param[in] p_hids Identifies the service for which Key Notifications are buffered.
+ * @param[in] p_key_pattern Pointer to key pattern.
+ * @param[in] pattern_len Length of key pattern.
+ * @param[in] offset Offset applied to Key Pattern when requesting a transmission on
+ * dequeue, @ref buffer_dequeue.
+ * @return NRF_SUCCESS on success, else an error code indicating reason for failure.
+ */
+static uint32_t buffer_enqueue(ble_hids_t * p_hids,
+ uint8_t * p_key_pattern,
+ uint16_t pattern_len,
+ uint16_t offset)
+{
+ buffer_entry_t * element;
+ uint32_t err_code = NRF_SUCCESS;
+
+ if (BUFFER_LIST_FULL())
+ {
+ // Element cannot be buffered.
+ err_code = NRF_ERROR_NO_MEM;
+ }
+ else
+ {
+ // Make entry of buffer element and copy data.
+ element = &buffer_list.buffer[(buffer_list.wp)];
+ element->p_instance = p_hids;
+ element->p_data = p_key_pattern;
+ element->data_offset = offset;
+ element->data_len = pattern_len;
+
+ buffer_list.count++;
+ buffer_list.wp++;
+
+ if (buffer_list.wp == MAX_BUFFER_ENTRIES)
+ {
+ buffer_list.wp = 0;
+ }
+ }
+
+ return err_code;
+}
+
+
+/**@brief Function to dequeue key scan patterns that could not be transmitted either completely of
+ * partially.
+ *
+ * @warning This handler is an example only. You need to analyze how you wish to send the key
+ * release.
+ *
+ * @param[in] tx_flag Indicative of whether the dequeue should result in transmission or not.
+ * @note A typical example when all keys are dequeued with transmission is when link is
+ * disconnected.
+ *
+ * @return NRF_SUCCESS on success, else an error code indicating reason for failure.
+ */
+static uint32_t buffer_dequeue(bool tx_flag)
+{
+ buffer_entry_t * p_element;
+ uint32_t err_code = NRF_SUCCESS;
+ uint16_t actual_len;
+
+ if (BUFFER_LIST_EMPTY())
+ {
+ err_code = NRF_ERROR_NOT_FOUND;
+ }
+ else
+ {
+ bool remove_element = true;
+
+ p_element = &buffer_list.buffer[(buffer_list.rp)];
+
+ if (tx_flag)
+ {
+ err_code = send_key_scan_press_release(p_element->p_instance,
+ p_element->p_data,
+ p_element->data_len,
+ p_element->data_offset,
+ &actual_len);
+ // An additional notification is needed for release of all keys, therefore check
+ // is for actual_len <= element->data_len and not actual_len < element->data_len
+ if ((err_code == BLE_ERROR_NO_TX_BUFFERS) && (actual_len <= p_element->data_len))
+ {
+ // Transmission could not be completed, do not remove the entry, adjust next data to
+ // be transmitted
+ p_element->data_offset = actual_len;
+ remove_element = false;
+ }
+ }
+
+ if (remove_element)
+ {
+ BUFFER_ELEMENT_INIT(buffer_list.rp);
+
+ buffer_list.rp++;
+ buffer_list.count--;
+
+ if (buffer_list.rp == MAX_BUFFER_ENTRIES)
+ {
+ buffer_list.rp = 0;
+ }
+ }
+ }
+
+ return err_code;
+}
+
+
+/**@brief Function for sending sample key presses to the peer.
+ *
+ * @param[in] key_pattern_len Pattern length.
+ * @param[in] p_key_pattern Pattern to be sent.
+ */
+static void keys_send(uint8_t key_pattern_len, uint8_t * p_key_pattern)
+{
+ uint32_t err_code;
+ uint16_t actual_len;
+
+ err_code = send_key_scan_press_release(&m_hids,
+ p_key_pattern,
+ key_pattern_len,
+ 0,
+ &actual_len);
+ // An additional notification is needed for release of all keys, therefore check
+ // is for actual_len <= key_pattern_len and not actual_len < key_pattern_len.
+ if ((err_code == BLE_ERROR_NO_TX_BUFFERS) && (actual_len <= key_pattern_len))
+ {
+ // Buffer enqueue routine return value is not intentionally checked.
+ // Rationale: Its better to have a a few keys missing than have a system
+ // reset. Recommendation is to work out most optimal value for
+ // MAX_BUFFER_ENTRIES to minimize chances of buffer queue full condition
+ UNUSED_VARIABLE(buffer_enqueue(&m_hids, p_key_pattern, key_pattern_len, actual_len));
+ }
+
+
+ if ((err_code != NRF_SUCCESS) &&
+ (err_code != NRF_ERROR_INVALID_STATE) &&
+ (err_code != BLE_ERROR_NO_TX_BUFFERS) &&
+ (err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING)
+ )
+ {
+ APP_ERROR_HANDLER(err_code);
+ }
+}
+
+
+/**@brief Function for handling the HID Report Characteristic Write event.
+ *
+ * @param[in] p_evt HID service event.
+ */
+static void on_hid_rep_char_write(ble_hids_evt_t *p_evt)
+{
+ if (p_evt->params.char_write.char_id.rep_type == BLE_HIDS_REP_TYPE_OUTPUT)
+ {
+ uint32_t err_code;
+ uint8_t report_val;
+ uint8_t report_index = p_evt->params.char_write.char_id.rep_index;
+
+ if (report_index == OUTPUT_REPORT_INDEX)
+ {
+ // This code assumes that the outptu report is one byte long. Hence the following
+ // static assert is made.
+ STATIC_ASSERT(OUTPUT_REPORT_MAX_LEN == 1);
+
+ err_code = ble_hids_outp_rep_get(&m_hids,
+ report_index,
+ OUTPUT_REPORT_MAX_LEN,
+ 0,
+ &report_val);
+ APP_ERROR_CHECK(err_code);
+
+ if (!m_caps_on && ((report_val & OUTPUT_REPORT_BIT_MASK_CAPS_LOCK) != 0))
+ {
+ // Caps Lock is turned On.
+ err_code = bsp_indication_set(BSP_INDICATE_ALERT_3);
+ APP_ERROR_CHECK(err_code);
+
+ keys_send(sizeof(m_caps_on_key_scan_str), m_caps_on_key_scan_str);
+ m_caps_on = true;
+ }
+ else if (m_caps_on && ((report_val & OUTPUT_REPORT_BIT_MASK_CAPS_LOCK) == 0))
+ {
+ // Caps Lock is turned Off .
+ err_code = bsp_indication_set(BSP_INDICATE_ALERT_OFF);
+ APP_ERROR_CHECK(err_code);
+
+ keys_send(sizeof(m_caps_off_key_scan_str), m_caps_off_key_scan_str);
+ m_caps_on = false;
+ }
+ else
+ {
+ // The report received is not supported by this application. Do nothing.
+ }
+ }
+ }
+}
+
+
+/**@brief Function for putting the chip into sleep mode.
+ *
+ * @note This function will not return.
+ */
+static void sleep_mode_enter(void)
+{
+ uint32_t err_code = bsp_indication_set(BSP_INDICATE_IDLE);
+ APP_ERROR_CHECK(err_code);
+
+ // Prepare wakeup buttons.
+ err_code = bsp_btn_ble_sleep_mode_prepare();
+ APP_ERROR_CHECK(err_code);
+
+ // Go to system-off mode (this function will not return; wakeup will cause a reset).
+ err_code = sd_power_system_off();
+ APP_ERROR_CHECK(err_code);
+}
+
+
+/**@brief Function for handling HID events.
+ *
+ * @details This function will be called for all HID events which are passed to the application.
+ *
+ * @param[in] p_hids HID service structure.
+ * @param[in] p_evt Event received from the HID service.
+ */
+static void on_hids_evt(ble_hids_t * p_hids, ble_hids_evt_t *p_evt)
+{
+ switch (p_evt->evt_type)
+ {
+ case BLE_HIDS_EVT_BOOT_MODE_ENTERED:
+ m_in_boot_mode = true;
+ break;
+
+ case BLE_HIDS_EVT_REPORT_MODE_ENTERED:
+ m_in_boot_mode = false;
+ break;
+
+ case BLE_HIDS_EVT_REP_CHAR_WRITE:
+ on_hid_rep_char_write(p_evt);
+ break;
+
+ case BLE_HIDS_EVT_NOTIF_ENABLED:
+ {
+ dm_service_context_t service_context;
+ service_context.service_type = DM_PROTOCOL_CNTXT_GATT_SRVR_ID;
+ service_context.context_data.len = 0;
+ service_context.context_data.p_data = NULL;
+
+ if (m_in_boot_mode)
+ {
+ // Protocol mode is Boot Protocol mode.
+ if (
+ p_evt->params.notification.char_id.uuid
+ ==
+ BLE_UUID_BOOT_KEYBOARD_INPUT_REPORT_CHAR
+ )
+ {
+ // The notification of boot keyboard input report has been enabled.
+ // Save the system attribute (CCCD) information into the flash.
+ uint32_t err_code;
+
+ err_code = dm_service_context_set(&m_bonded_peer_handle, &service_context);
+ if (err_code != NRF_ERROR_INVALID_STATE)
+ {
+ APP_ERROR_CHECK(err_code);
+ }
+ else
+ {
+ // The system attributes could not be written to the flash because
+ // the connected central is not a new central. The system attributes
+ // will only be written to flash only when disconnected from this central.
+ // Do nothing now.
+ }
+ }
+ else
+ {
+ // Do nothing.
+ }
+ }
+ else if (p_evt->params.notification.char_id.rep_type == BLE_HIDS_REP_TYPE_INPUT)
+ {
+ // The protocol mode is Report Protocol mode. And the CCCD for the input report
+ // is changed. It is now time to store all the CCCD information (system
+ // attributes) into the flash.
+ uint32_t err_code;
+
+ err_code = dm_service_context_set(&m_bonded_peer_handle, &service_context);
+ if (err_code != NRF_ERROR_INVALID_STATE)
+ {
+ APP_ERROR_CHECK(err_code);
+ }
+ else
+ {
+ // The system attributes could not be written to the flash because
+ // the connected central is not a new central. The system attributes
+ // will only be written to flash only when disconnected from this central.
+ // Do nothing now.
+ }
+ }
+ else
+ {
+ // The notification of the report that was enabled by the central is not interesting
+ // to this application. So do nothing.
+ }
+ break;
+ }
+
+ default:
+ // No implementation needed.
+ break;
+ }
+}
+
+
+/**@brief Function for handling advertising events.
+ *
+ * @details This function will be called for advertising events which are passed to the application.
+ *
+ * @param[in] ble_adv_evt Advertising event.
+ */
+static void on_adv_evt(ble_adv_evt_t ble_adv_evt)
+{
+ uint32_t err_code;
+
+ switch (ble_adv_evt)
+ {
+ case BLE_ADV_EVT_DIRECTED:
+ err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING_DIRECTED);
+ APP_ERROR_CHECK(err_code);
+ break;
+ case BLE_ADV_EVT_FAST:
+ err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING);
+ APP_ERROR_CHECK(err_code);
+ break;
+ case BLE_ADV_EVT_SLOW:
+ err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING_SLOW);
+ APP_ERROR_CHECK(err_code);
+ break;
+ case BLE_ADV_EVT_FAST_WHITELIST:
+ err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING_WHITELIST);
+ APP_ERROR_CHECK(err_code);
+ break;
+ case BLE_ADV_EVT_SLOW_WHITELIST:
+ err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING_WHITELIST);
+ APP_ERROR_CHECK(err_code);
+ break;
+ case BLE_ADV_EVT_IDLE:
+ sleep_mode_enter();
+ break;
+
+ case BLE_ADV_EVT_WHITELIST_REQUEST:
+ {
+ ble_gap_whitelist_t whitelist;
+ ble_gap_addr_t * p_whitelist_addr[BLE_GAP_WHITELIST_ADDR_MAX_COUNT];
+ ble_gap_irk_t * p_whitelist_irk[BLE_GAP_WHITELIST_IRK_MAX_COUNT];
+
+ whitelist.addr_count = BLE_GAP_WHITELIST_ADDR_MAX_COUNT;
+ whitelist.irk_count = BLE_GAP_WHITELIST_IRK_MAX_COUNT;
+ whitelist.pp_addrs = p_whitelist_addr;
+ whitelist.pp_irks = p_whitelist_irk;
+
+ err_code = dm_whitelist_create(&m_app_handle, &whitelist);
+ APP_ERROR_CHECK(err_code);
+
+ err_code = ble_advertising_whitelist_reply(&whitelist);
+ APP_ERROR_CHECK(err_code);
+ break;
+ }
+ case BLE_ADV_EVT_PEER_ADDR_REQUEST:
+ {
+ ble_gap_addr_t peer_address;
+
+ // Only Give peer address if we have a handle to the bonded peer.
+ if(m_bonded_peer_handle.appl_id != DM_INVALID_ID)
+ {
+
+ err_code = dm_peer_addr_get(&m_bonded_peer_handle, &peer_address);
+ APP_ERROR_CHECK(err_code);
+
+ err_code = ble_advertising_peer_addr_reply(&peer_address);
+ APP_ERROR_CHECK(err_code);
+
+ }
+ break;
+ }
+ default:
+ break;
+ }
+}
+
+
+/**@brief Function for handling the Application's BLE Stack events.
+ *
+ * @param[in] p_ble_evt Bluetooth stack 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:
+ err_code = bsp_indication_set(BSP_INDICATE_CONNECTED);
+ APP_ERROR_CHECK(err_code);
+
+ m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
+ break;
+
+ case BLE_EVT_TX_COMPLETE:
+ // Send next key event
+ (void) buffer_dequeue(true);
+ break;
+
+ case BLE_GAP_EVT_DISCONNECTED:
+ // Dequeue all keys without transmission.
+ (void) buffer_dequeue(false);
+
+ m_conn_handle = BLE_CONN_HANDLE_INVALID;
+
+ // Reset m_caps_on variable. Upon reconnect, the HID host will re-send the Output
+ // report containing the Caps lock state.
+ m_caps_on = false;
+ // disabling alert 3. signal - used for capslock ON
+ err_code = bsp_indication_set(BSP_INDICATE_ALERT_OFF);
+ APP_ERROR_CHECK(err_code);
+ 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_GATTC_EVT_TIMEOUT:
+ case BLE_GATTS_EVT_TIMEOUT:
+ // Disconnect on GATT Server and Client timeout events.
+ err_code = sd_ble_gap_disconnect(m_conn_handle,
+ BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
+ APP_ERROR_CHECK(err_code);
+ break;
+
+ default:
+ // No implementation needed.
+ break;
+ }
+}
+
+
+/**@brief Function for dispatching a BLE stack event to all modules with a BLE stack event handler.
+ *
+ * @details This function is called from the scheduler in the main loop after a BLE stack
+ * event has been received.
+ *
+ * @param[in] p_ble_evt Bluetooth stack event.
+ */
+static void ble_evt_dispatch(ble_evt_t * p_ble_evt)
+{
+ dm_ble_evt_handler(p_ble_evt);
+ bsp_btn_ble_on_ble_evt(p_ble_evt);
+ on_ble_evt(p_ble_evt);
+ ble_advertising_on_ble_evt(p_ble_evt);
+ ble_conn_params_on_ble_evt(p_ble_evt);
+ ble_hids_on_ble_evt(&m_hids, p_ble_evt);
+ ble_bas_on_ble_evt(&m_bas, p_ble_evt);
+}
+
+
+/**@brief Function for dispatching a system event to interested modules.
+ *
+ * @details This function is called from the System event interrupt handler after a system
+ * event has been received.
+ *
+ * @param[in] sys_evt System stack event.
+ */
+static void sys_evt_dispatch(uint32_t sys_evt)
+{
+ pstorage_sys_event_handler(sys_evt);
+ ble_advertising_on_sys_evt(sys_evt);
+}
+
+
+/**@brief Function for initializing the BLE stack.
+ *
+ * @details Initializes the SoftDevice and the BLE event interrupt.
+ */
+static void ble_stack_init(void)
+{
+ uint32_t err_code;
+
+ // Initialize the SoftDevice handler module.
+ SOFTDEVICE_HANDLER_APPSH_INIT(NRF_CLOCK_LFCLKSRC_XTAL_20_PPM, true);
+
+ // Enable BLE stack
+ ble_enable_params_t ble_enable_params;
+ memset(&ble_enable_params, 0, sizeof(ble_enable_params));
+#ifdef S130
+ ble_enable_params.gatts_enable_params.attr_tab_size = BLE_GATTS_ATTR_TAB_SIZE_DEFAULT;
+#endif
+ ble_enable_params.gatts_enable_params.service_changed = IS_SRVC_CHANGED_CHARACT_PRESENT;
+ err_code = sd_ble_enable(&ble_enable_params);
+ APP_ERROR_CHECK(err_code);
+
+ // Register with the SoftDevice handler module for BLE events.
+ err_code = softdevice_ble_evt_handler_set(ble_evt_dispatch);
+ APP_ERROR_CHECK(err_code);
+
+ // Register with the SoftDevice handler module for BLE events.
+ err_code = softdevice_sys_evt_handler_set(sys_evt_dispatch);
+ APP_ERROR_CHECK(err_code);
+}
+
+
+/**@brief Function for the Event Scheduler initialization.
+ */
+static void scheduler_init(void)
+{
+ APP_SCHED_INIT(SCHED_MAX_EVENT_DATA_SIZE, SCHED_QUEUE_SIZE);
+}
+
+
+/**@brief Function for handling events from the BSP module.
+ *
+ * @param[in] event Event generated by button press.
+ */
+static void bsp_event_handler(bsp_event_t event)
+{
+ uint32_t err_code;
+ static uint8_t * p_key = m_sample_key_press_scan_str;
+ static uint8_t size = 0;
+
+ switch (event)
+ {
+ case BSP_EVENT_SLEEP:
+ sleep_mode_enter();
+ break;
+
+ case BSP_EVENT_DISCONNECT:
+ err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
+ if (err_code != NRF_ERROR_INVALID_STATE)
+ {
+ APP_ERROR_CHECK(err_code);
+ }
+ break;
+
+ case BSP_EVENT_WHITELIST_OFF:
+ err_code = ble_advertising_restart_without_whitelist();
+ if (err_code != NRF_ERROR_INVALID_STATE)
+ {
+ APP_ERROR_CHECK(err_code);
+ }
+ break;
+
+ case BSP_EVENT_KEY_0:
+ if (m_conn_handle != BLE_CONN_HANDLE_INVALID)
+ {
+ keys_send(1, p_key);
+ p_key++;
+ size++;
+ if (size == MAX_KEYS_IN_ONE_REPORT)
+ {
+ p_key = m_sample_key_press_scan_str;
+ size = 0;
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+
+/**@brief Function for initializing the Advertising functionality.
+ */
+static void advertising_init(void)
+{
+ uint32_t err_code;
+ uint8_t adv_flags;
+ ble_advdata_t advdata;
+
+ // Build and set advertising data
+ memset(&advdata, 0, sizeof(advdata));
+
+ adv_flags = BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE;
+ advdata.name_type = BLE_ADVDATA_FULL_NAME;
+ advdata.include_appearance = true;
+ advdata.flags = adv_flags;
+ advdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
+ advdata.uuids_complete.p_uuids = m_adv_uuids;
+
+ ble_adv_modes_config_t options =
+ {
+ BLE_ADV_WHITELIST_ENABLED,
+ BLE_ADV_DIRECTED_ENABLED,
+ BLE_ADV_DIRECTED_SLOW_DISABLED, 0,0,
+ BLE_ADV_FAST_ENABLED, APP_ADV_FAST_INTERVAL, APP_ADV_FAST_TIMEOUT,
+ BLE_ADV_SLOW_ENABLED, APP_ADV_SLOW_INTERVAL, APP_ADV_SLOW_TIMEOUT
+ };
+
+ err_code = ble_advertising_init(&advdata, NULL, &options, on_adv_evt, ble_advertising_error_handler);
+ APP_ERROR_CHECK(err_code);
+}
+
+
+/**@brief Function for handling the Device Manager events.
+ *
+ * @param[in] p_evt Data associated to the device manager event.
+ */
+static uint32_t device_manager_evt_handler(dm_handle_t const * p_handle,
+ dm_event_t const * p_event,
+ ret_code_t event_result)
+{
+ APP_ERROR_CHECK(event_result);
+
+ switch(p_event->event_id)
+ {
+ case DM_EVT_DEVICE_CONTEXT_LOADED: // Fall through.
+ case DM_EVT_SECURITY_SETUP_COMPLETE:
+ m_bonded_peer_handle = (*p_handle);
+ break;
+ }
+
+ return NRF_SUCCESS;
+}
+
+
+/**@brief Function for the Device Manager initialization.
+ *
+ * @param[in] erase_bonds Indicates whether bonding information should be cleared from
+ * persistent storage during initialization of the Device Manager.
+ */
+static void device_manager_init(bool erase_bonds)
+{
+ uint32_t err_code;
+ dm_init_param_t init_param = {.clear_persistent_data = erase_bonds};
+ dm_application_param_t register_param;
+
+ // Initialize peer device handle.
+ err_code = dm_handle_initialize(&m_bonded_peer_handle);
+ APP_ERROR_CHECK(err_code);
+
+ // Initialize persistent storage module.
+ err_code = pstorage_init();
+ APP_ERROR_CHECK(err_code);
+
+ err_code = dm_init(&init_param);
+ APP_ERROR_CHECK(err_code);
+
+ memset(®ister_param.sec_param, 0, sizeof(ble_gap_sec_params_t));
+
+ register_param.sec_param.bond = SEC_PARAM_BOND;
+ register_param.sec_param.mitm = SEC_PARAM_MITM;
+ register_param.sec_param.io_caps = SEC_PARAM_IO_CAPABILITIES;
+ register_param.sec_param.oob = SEC_PARAM_OOB;
+ register_param.sec_param.min_key_size = SEC_PARAM_MIN_KEY_SIZE;
+ register_param.sec_param.max_key_size = SEC_PARAM_MAX_KEY_SIZE;
+ register_param.evt_handler = device_manager_evt_handler;
+ register_param.service_type = DM_PROTOCOL_CNTXT_GATT_SRVR_ID;
+
+ err_code = dm_register(&m_app_handle, ®ister_param);
+ APP_ERROR_CHECK(err_code);
+}
+
+
+/**@brief Function for initializing buttons and leds.
+ *
+ * @param[out] p_erase_bonds Will be true if the clear bonding button was pressed to wake the application up.
+ */
+static void buttons_leds_init(bool * p_erase_bonds)
+{
+ bsp_event_t startup_event;
+
+ uint32_t err_code = bsp_init(BSP_INIT_LED | BSP_INIT_BUTTONS,
+ APP_TIMER_TICKS(100, APP_TIMER_PRESCALER),
+ bsp_event_handler);
+ APP_ERROR_CHECK(err_code);
+
+ err_code = bsp_btn_ble_init(NULL, &startup_event);
+ APP_ERROR_CHECK(err_code);
+
+ *p_erase_bonds = (startup_event == BSP_EVENT_CLEAR_BONDING_DATA);
+}
+
+
+/**@brief Function for the Power manager.
+ */
+static void power_manage(void)
+{
+ uint32_t err_code = sd_app_evt_wait();
+ APP_ERROR_CHECK(err_code);
+}
+
+
+/**@brief Function for application main entry.
+ */
+int main(void)
+{
+ bool erase_bonds;
+ uint32_t err_code;
+
+ // Initialize.
+ app_trace_init();
+ timers_init();
+ buttons_leds_init(&erase_bonds);
+ ble_stack_init();
+ scheduler_init();
+ device_manager_init(erase_bonds);
+ gap_params_init();
+ advertising_init();
+ services_init();
+ sensor_simulator_init();
+ conn_params_init();
+ buffer_init();
+
+ // Start execution.
+ timers_start();
+ err_code = ble_advertising_start(BLE_ADV_MODE_FAST);
+ APP_ERROR_CHECK(err_code);
+
+ // Enter main loop.
+ for (;;)
+ {
+ app_sched_execute();
+ power_manage();
+ }
+}
+
+/**
+ * @}
+ */
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