HID customer application

[CY]

Hi

I was trying to do the page up and down key, I just built it successfully but it is no response.

Could anyone find out the reason for me.

I appreciate for your assistance.

/* 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 "nordic_common.h"
#include "nrf.h"
#include "nrf_assert.h"
#include "app_error.h"
#include "nrf_gpio.h"
#include "ble.h"
#include "ble_hci.h"
#include "ble_srv_common.h"
#include "ble_advertising.h"
#include "ble_advdata.h"
#include "ble_hids.h"
#include "ble_conn_params.h"
#include "bsp.h"
#include "bsp_btn_ble.h"
#include "app_scheduler.h"
#include "softdevice_handler_appsh.h"
#include "app_timer_appsh.h"
#include "device_manager.h"
#include "app_button.h"
#include "pstorage.h"
#include "app_trace.h"

#if BUTTONS_NUMBER <2
#error "Not enough resources on board"
#endif

#define PAGE_UP                   BSP_BUTTON_2
#define PAGE_DOWN                 BSP_BUTTON_3

#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 CENTRAL_LINK_COUNT               0                                              /**< Number of central links used by the application. When changing this number remember to adjust the RAM settings*/
#define PERIPHERAL_LINK_COUNT            1                                              /**< Number of peripheral links used by the application. When changing this number remember to adjust the RAM settings*/

#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                      "PEN"                              /**< Name of device. Will be included in the advertising data. */
#define MANUFACTURER_NAME                "WEDY"                          /**< Manufacturer. Will be passed to Device Information Service. */

#define APP_TIMER_PRESCALER              0                                              /**< Value of the RTC1 PRESCALER register. */
#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 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. */

//11/14 wedy add for button control
#define BUTTON_DETECTION_DELAY           APP_TIMER_TICKS(50, APP_TIMER_PRESCALER)  

#define SEC_PARAM_BOND                   1                                              /**< Perform bonding. */
#define SEC_PARAM_MITM                   0                                              /**< Man In The Middle protection not required. */
#define SEC_PARAM_LESC                   0                                              /**< LE Secure Connections not enabled. */
#define SEC_PARAM_KEYPRESS               0                                              /**< Keypress notifications not enabled. */
#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            5                                              /**< 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. */

//Wedy 11/14 add for other report
#define INPUT_REPORT_COUNT 1


#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        2                                              /**< 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. */

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 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 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}};

//Wedy 11/14 add for pen control
typedef enum
{
		RELEASE_KEY                     = 0x00,
        PEN_UP							= 0x01,
        PEN_DOWN						= 0x02,
} pen_control_t;



/** 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 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_OP_QUEUE_SIZE, true);
}


/**@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 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[] =
    {
				//Wedy 11/13 to simulate the project
				//Report ID 1: BT
        0x05, 0x01,         // Usage Page (Generic Desktop)
        0x09, 0x06,         // Usage (Keyboard)
        0xA1, 0x01,         // Collection: (Application)
		0x85, 0x01,         // Report ID(1)     simulate project
        0x05, 0x07,         // Usage Page (Key Codes/ Keyboard)
		0x09, 0x4B,			// USAGE(Page Up Key) //0x08
		0x09, 0x4E,			// USAGE(Page Down Key) //0x10
		0x09, 0xE3,         // USAGE(Left Windows Key) //0x20
		0x15, 0x00,         // LOGICAL_MINIMUM(0) //range of the value
		0x25, 0x01,         // LOGICAL_MAXIMUM(1) //range of the value
		0x75, 0x01,         // REPORT_SIZE(1) //1 bit
		0x95, 0x05,         // REPORT_COUNT(2) // just 1 item = 2 bit
		0x81, 0x02,         // INPUT (Data, Var, Abs)
		0x95, 0x03,         // REPORT_COUNT(3)
		0x81, 0x03,         // INPUT(Cnst, Var, Abs)
        0xC0               // End Collection ->41byte

    };

    // 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_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);
		
    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                  = INPUT_REPORT_COUNT;    //Wedy note 11/14 add for other report but it won't start the LED scanning
    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)
{
    hids_init();
}



/**@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 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 == 5);

            err_code = ble_hids_outp_rep_get(&m_hids,
                                             report_index,
                                             OUTPUT_REPORT_MAX_LEN,
                                             0,
                                             &report_val);
            APP_ERROR_CHECK(err_code);
        }
    }
}

/*******************************************************************************************************************/
//Wedy 11/13 add for BT pen
/**@brief Function for sending consumer control data
 */
static uint32_t pen_control_send(pen_control_t cmd)
{
    return ble_hids_inp_rep_send(&m_hids, INPUT_REPORT_KEYS_INDEX, INPUT_REPORT_KEYS_MAX_LEN, (uint8_t*)&cmd);
}

static uint32_t hid_kbd_send_string(void)
{
    uint8_t temp_buf[INPUT_REPORT_KEYS_MAX_LEN] = {0x00, 0x00};   
    return ble_hids_inp_rep_send(&m_hids, INPUT_REPORT_KEYS_INDEX, INPUT_REPORT_KEYS_MAX_LEN, (uint8_t*)temp_buf);
}

static uint32_t hid_kbd_send_release(void)
{
    uint8_t temp_buf[INPUT_REPORT_KEYS_MAX_LEN] = {0, 0};   
    return ble_hids_inp_rep_send(&m_hids, INPUT_REPORT_KEYS_INDEX, INPUT_REPORT_KEYS_MAX_LEN, (uint8_t*)temp_buf);
}

/**@brief Function for handling button events.
 *
 * @param[in]   pin_no   The pin number of the button pressed.
 */
static void button_event_handler(uint8_t pin_no, uint8_t button_action)
{
    if (button_action == APP_BUTTON_PUSH)
    {
        switch (pin_no)
        {
            case PAGE_UP:
                APP_ERROR_CHECK(pen_control_send(PEN_UP));
                break;
            case PAGE_DOWN:
                APP_ERROR_CHECK(pen_control_send(PEN_DOWN));
                break;
            default:
                APP_ERROR_HANDLER(pin_no);
                break;
        }
    }
    else if (button_action == APP_BUTTON_RELEASE)
    {
        switch (pin_no)
        {
            case PAGE_UP:
            /* Fall-through */
            case PAGE_DOWN:
                APP_ERROR_CHECK(pen_control_send(RELEASE_KEY)); 
                break;
            default:
                APP_ERROR_HANDLER(pin_no);
                break;
        }
    }
}

/**@brief Function for initializing the button handler module.
 */
static void buttons_init(void)
{
    static app_button_cfg_t buttons[] =
    {
        {PAGE_UP,            false, BUTTON_PULL, button_event_handler},
        {PAGE_DOWN,          false, BUTTON_PULL, button_event_handler}
    };

    app_button_init(buttons, sizeof(buttons) / sizeof(buttons[0]), BUTTON_DETECTION_DELAY);
}

/******************************************************************************/


/**@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.
                }
            }
						
		//Wedy 11/13 add to develop the BT PEN
	    else if (p_evt->params.notification.char_id.rep_type == BLE_HIDS_REP_TYPE_INPUT && p_evt->params.notification.char_id.rep_index == INPUT_REP_REF_ID)
            {
                // 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);
                if (err_code != (NRF_ERROR_NOT_FOUND | DEVICE_MANAGER_ERR_BASE))
                {
                    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_GAP_EVT_DISCONNECTED:

            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);
}


/**@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;
    
    nrf_clock_lf_cfg_t clock_lf_cfg = NRF_CLOCK_LFCLKSRC;
    
    // Initialize the SoftDevice handler module.
    SOFTDEVICE_HANDLER_APPSH_INIT(&clock_lf_cfg, true);
    
    ble_enable_params_t ble_enable_params;
    err_code = softdevice_enable_get_default_config(CENTRAL_LINK_COUNT,
                                                    PERIPHERAL_LINK_COUNT,
                                                    &ble_enable_params);
    APP_ERROR_CHECK(err_code);
    
    //Check the ram settings against the used number of links
    CHECK_RAM_START_ADDR(CENTRAL_LINK_COUNT,PERIPHERAL_LINK_COUNT);
    
    // Enable BLE stack.
    err_code = softdevice_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 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(&register_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.lesc         = SEC_PARAM_LESC;
    register_param.sec_param.keypress     = SEC_PARAM_KEYPRESS;
    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, &register_param);
    APP_ERROR_CHECK(err_code);
}


/**@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();
	
	//Wedy 11/14 add for BT control
	buttons_init();
	
    ble_stack_init();
    scheduler_init();
    device_manager_init(erase_bonds);
    gap_params_init();
    advertising_init();
    services_init();
    conn_params_init();

    err_code = ble_advertising_start(BLE_ADV_MODE_FAST);
    APP_ERROR_CHECK(err_code);

    // Enter main loop.
    for (;;)
    {
        app_sched_execute();
        power_manage();
    }
}

/**
 * @}
 */

[Håkon Alseth]

Hi,

 

Thanks for the info. I was able to compile and run your example.

Found an issue in your descriptor, and did some small modifications:

    static uint8_t report_map_data[] =
    {
        0x05, 0x01,         // Usage Page (Generic Desktop)
        0x09, 0x06,         // Usage (Keyboard)
        0xA1, 0x01,         // Collection: (Application)
            0x85, 0x01,         // Report ID(1)     simulate project        
            0x05, 0x07,         // Usage Page (Key Codes/ Keyboard)
            0x15, 0x00,         // LOGICAL_MINIMUM(0) //range of the value
            0x25, 0x01,         // LOGICAL_MAXIMUM(1) //range of the value        
            0x09, 0x4B,			// USAGE(Page Up Key) //0x08
            0x09, 0x4E,			// USAGE(Page Down Key) //0x10
            0x09, 0xE3,         // USAGE(Left Windows Key) //0x20
            0x75, 0x01,         // REPORT_SIZE(1) //1 bit
            0x95, 0x03,         // REPORT_COUNT(3) // just 1 item = 2 bit
            0x81, 0x02,         // INPUT (Data, Var, Abs)
            0x95, 0x05,         // REPORT_COUNT(5)
            0x81, 0x01,         // INPUT(Cnst, Var, Abs)
        0xC0               // End Collection

    };

Could you test with the above descriptor?

You also need to enable app_button. I recommend doing this in the BLE_GAP_EVT_CONNECTED:

case BLE_GAP_EVT_CONNECTED:

    ...

    app_button_enable(); 

Then disable again when disconnected:

case BLE_GAP_EVT_DISCONNECTED:

  ....  
  app_button_disable();

Note: you still need to set INPUT_REP_REF_ID to '1' in order for this to work.

 

Kind regards,

Håkon

[CY]

Hi Hakon,

Thanks for the response

I just compile it and run the program but it doesn't work.

I still cannot do the page up and down when I press the button on development board.

Did I have misunderstanding of the app_button, or I should use bsp to control the event?

BTY, I just found the descriptor you changed, may I ask the reason for the below:

 is the sequence important?
0x95, 0x05, // REPORT_COUNT(5) //why need 5 ?
0x81, 0x01, // INPUT(Cnst, Var, Abs) //why is 0x01 ?

Sincerely,

Wedy

[CY]

Hi Hakon,

Happy new year~

Since a while I have tried to program the code, it still doesn't work properly.

The main function I would like to develop is like Windows Pen.

https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/windows-pen-designs

Actually, I just test with surface pen and get some information by the tool "Keyboard Message" :

The method I tried is like below:

static uint8_t PRESS_HOLD[8] = {0,0,0x6D,0,0,0,0,0}; //Win+F18

static uint8_t CLEAR_CLICK[8] = {0,0,0,0,0,0,0,0}; //Null

static void bsp_event_handler(bsp_event_t event)
{
    uint32_t         err_code;
    static uint8_t * p_key = 0;
    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:
            if (m_conn_handle == BLE_CONN_HANDLE_INVALID)
            {
                err_code = ble_advertising_restart_without_whitelist(&m_advertising);
                if (err_code != NRF_ERROR_INVALID_STATE)
                {
                    APP_ERROR_CHECK(err_code);
                }
            }
            break;
        
        case BSP_EVENT_KEY_1:
          
            if (m_conn_handle != BLE_CONN_HANDLE_INVALID)
            {
              press_hold();
            }
            break;

        default:
            break;
    }
}

static void press_hold (void)
{
    uint32_t         err_code;
    static uint8_t * p_key = 0;
    static uint8_t   size  = 0;
    keys_send(8, p_key);
    p_key=PRESS_HOLD;
    keys_send(8, p_key);
    p_key=CLEAR_CLICK;
}

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)
{
    ret_code_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 (bsp_button_is_pressed(WINDOW_BUTTON_ID))
        {
            data[MODIFIER_KEY_POS] |= WINDOW_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,
                                             m_conn_handle);
        }
        else
        {
            err_code = ble_hids_boot_kb_inp_rep_send(p_hids,
                                                     INPUT_REPORT_KEYS_MAX_LEN,
                                                     data,
                                                     m_conn_handle);
        }

        if (err_code != NRF_SUCCESS)
        {
            break;
        }

        offset++;
    }
    while (offset <= data_len);

    *p_actual_len = offset;

    return err_code;
}

It was not worked properly.

Do you have any suggestion with this topic?

If I would like to control the button event, should I still need to use app_button as the reference?

Is the below protocol I tried is correct?

i. “Win” + “F18” (raw data: 08 00 6D 00 00 00 00 00)
ii. Release “F18” (raw data: 08 00 00 00 00 00 00 00)
iii. Release “Win” (raw data: 00 00 00 00 00 00 00 00)

BTW, I just change the SDK from V11 to V15.2 in order to get the swift pair function. 

[Håkon Alseth]

Hi Wedy,

 

Happy new year to you as well!

When switching over to SDK 15, did you alter the USB descriptor in any way?

It is important that you extend the Logical Maximum and Usage Maximum to reflect the data you're sending, shown here in lines 666 and 669:

https://github.com/Rallare/nrf51_ble_app_hids_kbd_consumercontrol/blob/SDK15/main.c#L666

If you are sending 0x6d (109 dec), your usage and logical maximum must be equal or larger.

Could you verify if this is set in the descriptor?

 

Kind regards,

Håkon

[CY]

Hi Hakon,

Yes, I did change the USB descriptor that you mentioned before.

The picture shows the result I tried:

It still shows the response of Left Windows only.

Best Regards,

Wedy

[Håkon Alseth]

Could you share your current descriptor?

Kind regards,

Håkon

[CY]

Hi Hakon,

Sure.

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)
        //Wedy test to change
        0x25, 0x6F,
        
        0x05, 0x07,       // Usage Page (Key codes)
        0x19, 0x00,       // Usage Minimum (0)
        
        //0x29, 0x65,       // Usage Maximum (101)
        //Wedy test to change
        0x29, 0x6F,
        
        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 Size (8 bit)
        0x95, 0x02,       // Report Count (2)
        0xB1, 0x02,       // Feature (Data, Variable, Absolute)

        0xC0              // End Collection (Application)
    };

BTW, I just found out the reason why I can not send the F18 (105) description.

Because of the keyboard on the laptop that FnLock.

I just can do the WIN+F18 Function now, like below:

Here comes the question:

How can I ensure to disable the FnLock whenever I use my device without setting the keyboard.

Thank you for spend your time to deal with this matter.

Sincerely,

Wedy

[Håkon Alseth]

Hi,

 

I have not seen this behavior before, but it seems like other people have run into this as well.

There's a thread here on arduino that I found:

http://forum.arduino.cc/index.php?topic=324554.0

I am not sure why, but it seems that the usage for the specific command is offset. In arduino's code base (keyboard.h), its F18 is defined as 0xF5 (0x6d + 0x88):

https://github.com/arduino-libraries/Keyboard/blob/master/src/Keyboard.h#L78

 

Could you try this and see how that works? You'll need to expand the usage max and logical max in the usb descriptor again to try this.

Kind regards,

Håkon

[CY]

Hi Hakon,

Thank you for your reply.

I will try it.

BTW, I would like to let you know the information below:

The computer I used to test was ThinkPad Win10 1803, which I met the FnLock problem. When I switch back to the FnLock it worked properly in both condition. Thus I just did the unlock again then it worked. However, I used surface pen to test, there was no issue like this even it is the first time to link.

Do you have any opinion with this?

Best regards,

Wedy

[Håkon Alseth]

I am sorry, but I cannot answer this. I unfortunately do not know. You could try contacting microsoft via their development forums to ask about this specific feature.

Kind regards,

Håkon

[CY]

Hi Hakon,

It is OK. Thank you for your suggestion.

Actually, there is one more thing I would like to ask that I just noticed yesterday.

As you see in the video, whenever I just do the first operation of each event after connecting there will always show something else. After I trigger the each event for the first time, it won't happened.

Do you have any idea with this?

Frankly speaking, event I did not use the combined key, it will show something else for the first time trigger as well.

Kind regards,

Wedy

[Håkon Alseth]

Hi Wedy,

 

Which command are you referring to? Is it the "130" one that isn't supposed to be sent? Or is it one of the programs opening that is unwanted?

 

Could you perform a sniffer trace to see what is actually going over the bluetooth link? You can use the nRF sniffer to perform this (remember to re-pair again so that it is able to follow the encryption process).

 

Kind regards,

Håkon