接口说明及 Demo 示例

本文主要介绍 MCU OTA 服务的接口以及 Demo。

接口

/**

 * MCU 升级初始化

 * @param  handle_cb Upgrade data callback function registration parameters

 * @param  pack_len  The length of data transferred to the user per pull packet swap

 * @return Function Operation Result  OPRT_OK is ok other is fail 

 */

OPERATE_RET tuya_svc_mcu_ota_serve_init(IN TY_OTA_CB_HANDLE_S handle_cb,IN UINT_T pack_len);

​

/**

 * Inform the MCU to upgrade and continue to pull packets,while choice OTA_PACK_WAIT

 * @return Function Operation Result  OPRT_OK is ok other is fail 

 */

OPERATE_RET tuya_svc_mcu_ota_wait_type_post(IN TY_OTA_POST_RESULT_E result);

​

/**

 * Start the MCU upgrade service, input parameters need to be obtained in the IOT specified callback

 * @param  p_ug_info Information about the upgraded file

 * @return Function Operation Result  OPRT_OK is ok other is fail 

 */

OPERATE_RET tuya_svc_mcu_ota_serve_start(IN CONST FW_UG_S *p_ug_info);

​

/**

 * Upgrade the packet processing callback function

 * Rereport the changed MCU version number after the system upgrade

 * HTTP report will start after 1S after the interface is used. If it fails, 5S retry

 * @param  p_mcu_ver Upgraded file information pointer

 * @return Function Operation Result  OPRT_OK is ok other is fail 

 */

OPERATE_RET tuya_svc_mcu_ota_ver_report_syn(IN CONST CHAR_T *p_mcu_ver);

​

/**

 * MCU upgrades subcontract length Settings

 * @param  pack_len  The length of data transferred to the user per pull packet swap,256,512,1024

 * @return Function Operation Result  OPRT_OK is ok other is fail 

 */

OPERATE_RET tuya_svc_mcu_ota_pack_len_set(IN UINT_T pack_len);

Demo 示例

OTA 流程简介

1. 手机 OTA 升级界面会弹窗提示。点击升级会提醒设备唤醒后进行升级。

2. 待设备唤醒后连接入云，会有云端升级回调接口下发升级信息（此处对应代码中的的 API 回调函数 dev_ug_inform_cb）。

3. 进行升级。

4. 升级后，会有升级结束回调。

5. 针对 MCU OTA 升级完成之后，MCU 必须控制模组重启一次，进行 MCU 新版本上报。

STATIC OPERATE_RET ty_uart_mcu_ota_start_cb(IN CONST FW_UG_S *p_ug_info,OUT TY_OTA_PACK_E *action_type);
STATIC OPERATE_RET ty_uart_mcu_ota_data_cb(IN CONST UCHAR_T *p_data, IN CONST UINT_T len,IN UINT_T offset, OUT TY_OTA_PACK_E *action_type);
STATIC OPERATE_RET ty_uart_mcu_ota_end_status_cb(IN TY_OTA_END_STATUS_E status,IN UINT_T offset);

STATIC TY_OTA_CB_HANDLE_S g_ota_msg = {\
   .iot_dev_ota_start_cb = ty_uart_mcu_ota_start_cb,\
   .iot_dev_ota_data_cb =  ty_uart_mcu_ota_data_cb,\
   .iot_dev_ota_end_sta_cb = ty_uart_mcu_ota_end_status_cb,\
};
STATIC OPERATE_RET ty_uart_mcu_ota_start_cb(IN CONST FW_UG_S *p_ug_info,OUT TY_OTA_PACK_E *action_type)
{
    OPERATE_RET op_ret = OPRT_OK;
    //  在此处是升级前回调
    // todo
    *action_type = OTA_PACK_GO_ON;  // 此处如果是 OTA_PACK_WAIT，组件需要等待 tuya_svc_mcu_ota_wait_type_post发送
    
    return op_ret;
}

STATIC OPERATE_RET ty_uart_mcu_ota_data_cb(IN CONST UCHAR_T *p_data, IN CONST UINT_T len,IN UINT_T offset, OUT TY_OTA_PACK_E *action_type)
{

    OPERATE_RET op_ret = OPRT_OK;
    //  在此处是升级数据回调
   // todo
    *action_type = OTA_PACK_GO_ON;  // 此处如果是 OTA_PACK_WAIT，组件需要等待 tuya_svc_mcu_ota_wait_type_post 发送 ，实现下载过程中的控制

    return op_ret;
}

STATIC OPERATE_RET ty_uart_mcu_ota_end_status_cb(IN TY_OTA_END_STATUS_E status,IN UINT_T offset)
{
    OPERATE_RET op_ret = OPRT_OK;

    //  在此处是升级结束回调
   // todo

    return op_ret;
}
OPERATE_RET tuya_ota_service_init(VOID)
{
    OPERATE_RET op_ret = OPRT_OK;
    op_ret = tuya_svc_mcu_ota_serve_init(g_ota_msg,256);
    if(OPRT_OK != op_ret) {
        PR_ERR("svc_mcu_ota_serve_init err:%d",op_ret);
        return op_ret;
    }
}

//此回调函数为系统 OTA 回调函数
OPERATE_RET dev_ug_inform_cb(IN CONST FW_UG_S *fw)
{
    OPERATE_RET op_ret = OPRT_OK;
    PR_DEBUG("Rev GW Upgrade Info");
    PR_DEBUG("fw->fw_url:%s", fw->fw_url);
    PR_DEBUG("fw->sw_ver:%s", fw->sw_ver);
    PR_DEBUG("fw->file_size:%d", fw->file_size);
//开始 MCU OTA 升级
    op_ret = tuya_svc_mcu_ota_serve_start(fw);
    if(OPRT_OK != op_ret) {
        PR_ERR("tuya_svc_mcu_ota_serve_start err:%d",op_ret);
    }
    return op_ret;
}

OPERATE_RET tuya_uart_cloud_init(void)
{
    OPERATE_RET op_ret = OPRT_COM_ERROR;
    TY_IOT_CBS_S wf_cbs = {
        .gw_status_cb = status_changed_cb,\
        .gw_ug_cb = gw_ug_inform_cb,\
        .gw_reset_cb = dev_reset_cb,\
        .dev_obj_dp_cb = dev_obj_dp_cb,\
        .dev_raw_dp_cb = dev_raw_dp_cb,\
        .dev_dp_query_cb = dev_dp_query_cb,\
        .dev_ug_cb = dev_ug_inform_cb,  \
        .pre_gw_ug_cb = pre_gw_ug_inform_cb
    };

    op_ret = tuya_iot_wf_mcu_dev_init(GWCM_LOW_POWER,WF_START_SMART_AP_CONCURRENT,\
                                        &wf_cbs,firmware_key,product_id,firmware_version,mcu_sw_ver);

    if(OPRT_OK != op_ret) {
        PR_ERR("tuya iot wifi init faild ! err:%d",op_ret);
        return op_ret;
    }

  
    return OPRT_OK;
}
OPERATE_RET device_init(VOID)
{
    tuya_uart_cloud_init();
}