CH585蓝牙HID添加数据双向透传功能

可参考该对话链接：https://www.doubao.com/thread/wc69f9dcfd4b62213，了解自己的方案需求，决定采用哪种方式实现；

本篇为方案A形式，方案B链接：CH585蓝牙HID程序增加自定义服务 - oTvTo - 博客园

一、打开Hid_keyboard例程

二、找到Profile文件夹，Hid报表有关配置写在hidkbdservice.c中

三、源工程只含有一个标准键盘描述符，其未描述上传的ID号，BLE HID中默认为ID = 0；

而在hidReportMap中加入透传描述符后，此描述表会转变为复合报表，因此Keyboard需指定一个非0的ID号，此工程修改为ID = 1；

注意：ID=0x07不可用，需跳过0x07

HID REPORT TABLE

四、修改属性表

①添加属性定义：

// HID Report characteristic, Trans input
static uint8_t       hidReportTransInProps = GATT_PROP_READ | GATT_PROP_NOTIFY;
static uint8_t       hidReportTransIn;
static gattCharCfg_t hidReportTransInClientCharCfg[GATT_MAX_NUM_CONN];

// HID Report Reference characteristic descriptor, Consumer input
static uint8_t hidReportRefTransIn[HID_REPORT_REF_LEN] =
    {HID_RPT_ID_Trans_IN, HID_REPORT_TYPE_INPUT};


// HID Report characteristic, Trans output
static uint8_t hidReportTransOUTProps = GATT_PROP_READ | GATT_PROP_WRITE | GATT_PROP_WRITE_NO_RSP;
static uint8_t hidReportTransOUT;

static uint8_t hidReportRefTransOUT[HID_REPORT_REF_LEN] =
    {HID_RPT_ID_Trans_OUT, HID_REPORT_TYPE_OUTPUT};

②添加属性表定义，加在Feature功能描述下方：

    /*ADD TRANS TABLE*/
    // HID Report characteristic, Trans input declaration
    {
        {ATT_BT_UUID_SIZE, characterUUID},
        GATT_PERMIT_READ,
        0,
        &hidReportTransInProps},

    // HID Report characteristic, Trans input
    {
        {ATT_BT_UUID_SIZE, hidReportUUID},
        GATT_PERMIT_ENCRYPT_READ,
        0,
        &hidReportTransIn},

    // HID Report characteristic client characteristic configuration
    {
        {ATT_BT_UUID_SIZE, clientCharCfgUUID},
        GATT_PERMIT_READ | GATT_PERMIT_ENCRYPT_WRITE,
        0,
        (uint8_t *)&hidReportTransInClientCharCfg},

    // HID Report Reference characteristic descriptor, Trans input
    {
        {ATT_BT_UUID_SIZE, reportRefUUID},
        GATT_PERMIT_READ,
        0,
        hidReportRefTransIn},


    // HID Report characteristic, Trans output declaration
    {
        { ATT_BT_UUID_SIZE, characterUUID },
        GATT_PERMIT_READ,
        0,
        &hidReportTransOUTProps
    },
    // HID Report characteristic, Trans output
    {
    { ATT_BT_UUID_SIZE, hidReportUUID },
    GATT_PERMIT_ENCRYPT_READ | GATT_PERMIT_ENCRYPT_WRITE,
    0,
    &hidReportTransOUT
    },

    // HID Report Reference characteristic descriptor, Trans output
    {
    { ATT_BT_UUID_SIZE, reportRefUUID },
    GATT_PERMIT_READ,
    0,
    hidReportRefTransOUT
    },

③添加属性表序列号枚举：