TuyaOS SDK for Linux

Using the networking capabilities of smart devices, TuyaOS SDK serves as the software middleware to build communication links with Tuya Cloud and Tuya’s apps and perform Tuya standard data transmission. This topic describes the TuyaOS SDK for Linux.

Prerequisites

• Currently, TuyaOS SDK for Linux only applies to devices with screens. You can bind and activate devices by scanning the QR code.
• Before development, you need to register an account on the Tuya Developer Platform to get the required information for device development, including the product ID, authorization code, and more. For more information about specific operations, see related documentation in Docs Center.

SDK download

The TuyaOS SDK for Linux is provided in the form of a dynamic-link library (.so) or static library (.a) in C. Therefore, you need to use a cross-compilation toolchain to generate an SDK.

The TuyaOS SDK for Linux will be regularly uploaded to GitHub. If the compiled product already contains your cross-compilation toolchain, you can download and use it directly.

Directory structure

For the description of the directory structure and usage, see the README.md file included in the package.

├── build_App.sh
├── CHANGELOG.md
├── Apps
├── platforms
└── sdk
    ├── include
    └── lib
        ├── libtuya_iot.a

SDK initialization

Device authentication

• The one-key-per-device authentication mechanism is used. The device is programmed with the unique UUID and authKey.

• The UUID and authKey are in pairs, and each device must have its unique UUID and authKey. If you need multiple sets of UUID and authKey for debugging, you can submit a ticket for asking support.

• The device authentication information is set through the interface of tuya_iot_set_gw_prod_info.

  Note: The PID, UUID, and authKey in the demo are only used for testing, not for physical products. Otherwise, physical products will be unavailable. You need to apply for a PID in the Developer Platform. Each device must have a unique UUID and authKey.

Interface initialization description

Initialization process

tuya_iot_init

• Function prototype

  OPERATE_RET tuya_iot_init(IN CONST CHAR_T *fs_storge_path)
  

• Summary

  It is used to initialize the Tuya IoT system and must be called first.

• Parameters

  Parameter name	Description
  fs_storge_path	Assign a read and write path for the SDK. The path length cannot be greater than 110 bytes.

• Return values

  Return values	Description
  OPRT_OK	Success
  Error codes	Error codes returned when execution failed.

tuya_iot_get_sdk_info

• Function prototype

  CHAR_T *tuya_iot_get_sdk_info(VOID);
  

• Summary

  Get the SDK version information.

• Parameters

  Parameter name	Description
  VOID	Empty

• Return values

  Return values	Description
  SDK information string	Include compilation time, platform, version number, and functionalities.

TY_IOT_CBS_S

• Function prototype

  typedef struct {
    GW_STATUS_CHANGED_CB 	gw_status_cb;
    GW_UG_INFORM_CB 		gw_ug_cb;
    GW_RESET_IFM_CB 		gw_reset_cb;
    DEV_OBJ_DP_CMD_CB 		dev_obj_dp_cb;
    DEV_RAW_DP_CMD_CB 		dev_raw_dp_cb;
    DEV_DP_QUERY_CB 		dev_dp_query_cb;
    ACTIVE_SHORTURL_CB 		active_shorturl;
  }TY_IOT_CBS_S;
  

• Summary

  SDK user callback interface.

• Member description

  Member name	Description
  gw_status_cb	It is called when the internal status of the SDK changes. For more information, see gw_status_cb.
  gw_ug_cb	It is called when the SDK detects upgrades. For more information, see gw_ug_cb.
  gw_reset_cb	It is called when the SDK is used to reset devices. For more information, see gw_reset_cb.
  dev_obj_dp_cb	It is called when the SDK receives the data point (DP). For more information, see dev_obj_dp_cb.
  dev_raw_dp_cb	It is called when the SDK receives the RAW DP. For more information, see dev_raw_dp_cb.
  dev_dp_query_cb	It is called when the SDK receives DP query commands. For more information, see dev_dp_query_cb.
  active_shorturl	It is called when the SDK receives QR code links. For more information, see active_shourturl_cb.

gw_status_cb

• Function prototype

  VOID gw_status_cb(IN CONST GW_STATUS_E status);
  

  /* tuya sdk gateway status info */
  typedef BYTE_T GW_STATUS_E;
  #define GW_RESET            0 // gw reset
  #define GW_ACTIVED          1 // gw actived
  #define GW_FIRST_START      2 // start tuya-sdk in the first time.
  #define GW_NORMAL           3 // tuya-sdk is actived and started
  

• Member description

  Member name	Description
  GW_RESET	It is called when resetting devices locally and removing devices from the app.
  GW_ACTIVED	It is a one-time callback triggered only as successful activation.
  GW_FIRST_START	It is called each time the device is restarted.
  GW_NORMAL	It is called each time the device is restarted only if the device is successfully activated.

tuya_iot_soc_init

• Function prototype

  OPERATE_RET tuya_iot_soc_init(IN CONST TY_IOT_CBS_S *cbs, IN CONST CHAR_T *product_key, IN CONST CHAR_T *sw_ver);
  

• Functional description

  Initialize interfaces of the network module SoC.

• Parameter description

  Name	Description	Type	Required	Setting method
  cbs	The array of callback functions. You can implement your own functions by the callback functions.	TY_IOT_CBS_S*	Yes	View the usage from examples.
  product_key	The product key that is got from Tuya Developer Platform.	String	Yes	The string cannot exceed 16 bytes.
  sw_ver:	Software version No.	String	Yes	Firmware version No. of the device. The valid format is “xx.xx.xx” (0 ≤ x ≤ 9).

• Return value

  Return value	Description
  OPRT_OK	Operation succeeded.
  Error codes	Error codes returned when execution failed.

tuya_iot_set_gw_prod_info

• Function prototype

  OPERATE_RET tuya_iot_set_gw_prod_info(IN CONST GW_PROD_INFO_S *prod_info);
  

  Set the authorization information of the network module. The authorization information must be got from Tuya. Otherwise, the device cannot be used properly.

  typedef struct {
    CHAR_T *uuid; 
    CHAR_T *auth_key;
  } GW_PROD_INFO_S;
  

• Member description

  Member name	Description
  uuid	UUID string. It must not be NULL.
  auth_key	auth_key string. It must not be NULL.

• Parameters

  Parameter name	Description
  prod_info	Product information. see GW_PROD_INFO_S.

• Return values

  Return value	Description
  OPRT_OK	Operation succeeded.
  Error codes	Error codes returned when execution failed.

tuya_iot_reg_get_wf_nw_stat_cb

• Function prototype

  OPERATE_RET tuya_iot_reg_get_wf_nw_stat_cb(IN CONST GET_WF_NW_STAT_CB nw_stat_cb);
  

• Summary

  From the registered callback functions, you can get the current network status according to the parameters of callback functions.

• Parameters

  Parameter name	Description
  nw_stat_cb	The callback function of registering the network status.

  The parameters of the callback function nw_stat_cb are of type GW_WIFI_NW_STAT_E, which are defined as follows:

  /* tuya sdk definition of wired-net status */
  typedef uint8_t GW_BASE_NW_STAT_T;
  
  /* offline in LAN.  user wired callback <tuya_hal_wired_station_conn> return <false> */
  #define GB_STAT_LAN_UNCONN 0
  
  /* online in LAN, offline in WAN.
   user wired callback <tuya_hal_wired_station_conn> return <true> but mqtt is offline
  */
  #define GB_STAT_LAN_CONN 1
  
  /* online in WAN.
   user wired callback <tuya_hal_wired_station_conn> return <true> and mqtt is online
  */
  #define GB_STAT_CLOUD_CONN 2
  

• Return values

  Return value	Description
  OPRT_OK	Operation succeeded.
  Error codes	Error codes returned when execution failed.

Device activation methods

QR code scanning

You can activate and bind devices by scanning the QR code with the Tuya Smart app.

Callback description

active_shourturl_cb

• Function prototype

  VOID active_shourturl_cb(OUT CONST CHAR_T *shorturl);
  

• Functional description

  The callback of getting QR code link.

• Parameter description

  Name	Description	Type	Required	Setting method
  shorturl	The format is {“shorturl”: “qrcode link”}. You need to convert the QR code link to a QR code. If the link cannot be got, NULL will be returned.	CONST CHAR_T *	Yes	-

• Return value. None.

Reset device

Use app to reset

You can reset devices from the app.

gw_reset_cb

Function prototype

VOID gw_reset_cb(GW_RESET_TYPE_E type);

• Summary

  The callback function gw_reset_cb of registering TY_IOT_CBS_S.

• Parameters

  Parameter name	Description
  type	Empty

  GW_RESET_TYPE_E definition:

  typedef enum {
    GW_LOCAL_RESET_FACTORY = 0,
    GW_REMOTE_UNACTIVE,
    GW_LOCAL_UNACTIVE,
    GW_REMOTE_RESET_FACTORY,
    GW_RESET_DATA_FACTORY, //need clear local data when active
  }GW_RESET_TYPE_E;
  

  Currently, the reset types of GW_REMOTE_RESET_FACTORY and GW_RESET_DATA_FACTORY are processed during the callback. After reset, the app shall be restarted.

• Return values

  Return value	Description
  VOID	Empty

Locally reset

The SDK is capable of locally resetting the gateway. You can reset the gateway locally with the reset button.

tuya_iot_gw_unactive

• Function prototype

  OPERATE_RET tuya_iot_gw_unactive(VOID);
  

• Summary

  Reset devices and unbind the gateway from the app. Then, the gateway will be waiting for pairing (inactive status).

  Note: This function is asynchronous, and the callback gw_reset_cb will be triggered after execution. You only need to restart the process during this callback.

• Parameters

  Parameter name	Description
  VOID	Empty

• Return values

  Return value	Description
  OPRT_OK	Operation succeeded.
  Error codes	Error codes returned when execution failed.

Data points of device

Process description

Tuya provides the MQTT-based network application protocol to implement device control and status reporting. MQTT is a lightweight publish-subscribe mode messaging protocol that is designed for IoT applications in low-bandwidth and unstable network environments.

TuyaOS SDK encapsulates the implementation of the MQTT protocol layer, which is abstracted as the data point (hereinafter referred to as DP). DP supports types of numeric, Boolean, enumeration, string, fault, and raw data, as simple as defining a C variable.

You need to create data points based on device functions in the Tuya Developer Platform. For more information about DP creation, see Custom Functions.

Features

• Currently, up to 35 DPs can be created for each product. You need to use raw data to implement complex functions.
• For Obj types, including Boolean (bool), numeric (value), string (string), enumeration (enum), and fault (bitmap), TuyaOS SDK filters continuously reported values and does not upload the identical values.

Interface description

dev_obj_dp_cb

• Function prototype

  VOID dev_obj_dp_cb(IN CONST TY_RECV_OBJ_DP_S *dp);
  

• Functional description

  The callback of OBJ DP information commands.

• Parameter description

  Name	Description	Type	Required	Setting method
  dp	TY_RECV_OBJ_DP_S includes: Types of DP commands. Device ID controlled by DPs. Group ID. Note: The group ID mb_id is returned only if dtt_tp is multicast. The length of DP struct array. The DP struct array. See tuya_cloud_com_defs.h.	TY_RECV_OBJ_DP_S*	Yes	See the DP definitions in the Developer Platform.

• Return value

  Return value	Description
  None	No value is returned.
  Error codes	Error codes returned when execution failed.

dev_raw_dp_cb

• Function prototype

  VOID dev_raw_dp_cb(IN CONST TY_RECV_RAW_DP_S *dp);
  

• Functional description

  The callback of raw DP information command.

• Parameter description

  Name	Description	Type	Required	Setting method
  dp	The struct includes: Types of DP commands. Device ID controlled by DPs. Group ID. Note: The group ID mb_id is returned only if dtt_tp is multicast. The length of DP struct array. Raw data. See tuya_cloud_com_defs.h.	TY_RECV_RAW_DP_S*	Yes	None

• Return value

  None.

dev_dp_query_cb

• Function prototype

  VOID dev_dp_query_cb(IN CONST TY_DP_QUERY_S *dp_qry);
  

• Functional description

  Entry of querying specific device data. Optional implementation.

• Parameter description

  Name	Description	Type	Required	Setting method
  dp_qry		TY_DP_QUERY_S*	Yes

• Return value. None.

dev_report_dp_json_async

• Function prototype

  OPERATE_RET dev_report_dp_json_async(IN CONST CHAR_T *dev_id, IN CONST TY_OBJ_DP_S *dp_data,IN CONST UINT_T cnt);
  

• Functional description

  Report DP information in an asynchronous manner.

• Parameter description

  Name	Description	Type	Required	Setting method
  dev_id	Device ID	String	Yes	Set according to device types: Sub-device: ID of sub-devices. Gateway or MCU: NULL.
  dp_data	DP data struct	Pointer of the struct array TY_OBJ_DP_S.	Yes
  cnt	The number of struct arrays dp_data.	UINT_T	Yes

• Return value

  Return value	Description
  OPRT_OK	Operation succeeded.
  Error codes	Error codes returned when execution failed.

dev_report_dp_raw_sync

• Function prototype

  OPERATE_RET dev_report_dp_raw_sync (IN CONST CHAR_T *dev_id, IN CONST BYTE_T dpid, IN CONST 
  BYTE_T *data,IN CONST UINT_T len, 
                                    IN CONST UINT_T timeout);
  

• Functional description

  The interface of synchronously reporting raw data. The caller guarantees the reliability of data reporting.

• Parameter description

  Name	Description	Type	Required	Setting method
  dev_id	Device ID	String	Yes	Set according to device types: Sub-device: ID of sub-devices. Gateway or MCU: NULL.
  dpid	DP ID	UINT_T	Yes
  data	Data	BYTE_T *	Yes
  len	Data length	UINT_T	Yes
  timeout	Timeout interval for blocked functions	UINT_T	Yes	In seconds.

• Return value

  Return value	Description
  OPRT_OK	Operation succeeded.
  Error codes	Error codes returned when execution failed.

dev_report_dp_stat_sync

• Function prototype

  OPERATE_RET dev_report_dp_stat_sync (IN CONST CHAR_T *dev_id, IN CONST     TY_OBJ_DP_S *dp_data, IN CONST UINT_T cnt, IN CONST UINT_T timeout);
  

• Functional description

  The interface of synchronously reporting struct data, which usually applies to reporting statistics data. The caller guarantees the reliability of data reporting.

• Parameter description

  Name	Description	Type	Required	Setting method
  dev_id	Device ID	String	Yes	Set according to device types: Sub-device: ID of sub-devices. Gateway or MCU: NULL.
  dp_data	DP information struct array	TY_OBJ_DP_S *	Yes
  cnt	Length of DP status array	UINT_T	Yes
  timeout	Timeout interval for blocked functions	UINT_T	Yes	In seconds.

• Return value

  Return value	Description
  OPRT_OK	Operation succeeded.
  Error codes	Error codes returned when execution failed.

Firmware upgrades

Process description

Configuration description of firmware package

• After the gateway or sub-device is successfully paired, the virtual ID in the device information from the app can be added to the whitelist for firmware upgrades.
• Compile the firmware package to be upgraded. The firmware version must be greater than that running on the device.
• Log in to the Developer Platform, find corresponding created products, and upload the configuration firmware package.
• Operating instruction.

Start upgrades

After the device firmware is uploaded to the cloud, the device will not receive the upgrades message immediately. Currently, the following upgrade methods are available:

• Notification upgrade: When opening the device panel for the first time, you will receive an upgrade prompt. You choose to upgrade or not.
• Hardware silent upgrade: The device goes through a silent upgrade. After the device is restarted, it will send a request for a silent upgrade task to the cloud. If there is a task, the upgrade will be executed directly. Meanwhile, the progress bar is displayed in the device panel, and the device cannot be operated.
• Forced upgrade: When opening the device panel for the first time, you will receive an upgrade prompt. You must choose to upgrade. Otherwise, the device cannot be operated.
• Manual detection upgrade: You click the device panel and then click the top right corner to enter the device information to check for updates.

Firmware upgrade interaction process

Interface description

gw_ug_cb

• Function prototype

  VOID gw_ug_cb(IN CONST FW_UG_S *fw);
  

• Summary

  The callback function gw_ug_cb of registering TY_IOT_CBS_S.

• Parameters

  Parameter name	Description
  fw	Firmware upgrade information

  FW_UG_S definition:

  /* tuya sdk ota firmware info */
  typedef struct {
    DEV_TYPE_T tp;      			// firmware type
    UPGRADE_TYPE_T type;
    CHAR_T fw_url[FW_URL_LEN+1];  	// firmware download url
    CHAR_T sw_ver[SW_VER_LEN+1];  	// firmware version
    UINT_T file_size;             	// firmware size in BYTE
    CHAR_T fw_hmac[FW_HMAC_LEN+1];  // firmware hmac
  }FW_UG_S;
  

tuya_iot_upgrade_gw_notify

• Function prototype

  OPERATE_RET tuya_iot_upgrade_gw(IN CONST FW_UG_S *fw, 
    							IN CONST GET_FILE_DATA_CB get_file_cb, 
    							IN CONST UPGRADE_NOTIFY_CB upgrd_nofity_cb, 
    							IN CONST PVOID_T pri_data, 
    							BOOL_T notify, 
    							UINT_T download_buf_size);
  

• Functional description

  The interface of processing firmware upgrade for network modules.

• Parameter description

  Name	Description	Type	Required	Remark
  fw	Firmware information	Pointer of FW_UG_S struct	Yes
  get_file_cb	Store downloaded files	Callback function	Yes
  upgrd_nofity_cb	Notification of upgrade status	Callback function	Yes
  pri_data	Parameters passed to get_file_cb and upgrd_nofity_cb	Pointer	No	If no parameter is passed, it is set to NULL.
  notify	Choose whether to report the upgrade progress by the SDK	Boolean	Yes	TRUE means reporting by the SDK, and FALSE means reporting by the application layer.
  download_buf_size	The maximum download cache in bytes	UINT_T	No	If 0 is passed in, the maximum download cache is the SDK’s default cache size.

• Return value

  Return value	Description
  OPRT_OK	Success
  Error codes	Error codes returned when execution failed.

tuya_iot_dev_upgd_progress_rept

• Function prototype

  OPERATE_RET tuya_iot_dev_upgd_progress_rept(IN CONST UINT_T percent, IN CONST CHAR_T *devid, IN CONST DEV_TYPE_T tp);
  

• Functional description

  Report the upgrade progress.

• Parameter description

  Name	Description	Type	Required	Remark
  percent	Upgrade progress value	UINT_T	Yes	0–99
  devid	Set according to device types: Sub-device: ID of sub-devices. Gateway: NULL.	CHAR_T *	Yes	See demo
  tp	Device type	DEV_TYPE_T	Yes	See demo

• Return value

  Return value	Description
  OPRT_OK	Success
  Error codes	Error codes returned when execution failed.

Log management

TuyaOS log management supports log output and redirection. By default, logs of TuyaOS SDK are output to the standard output terminal. It also supports redirection, such as output to a file or the cloud.

AddOutputTerm

• Function prototype

  OPERATE_RET AddOutputTerm(IN CONST CHAR_T *name,IN CONST LOG_OUTPUT term);
  

• Functional description

  Added an output callback to the TuyaOS SDK log to write the log to a file.

• Parameter description

  Name	Description	Type	Required	Setting method
  name	The name of the log callback.	String	Yes	It can be used for DelOutputTerm to cancel corresponding callbacks.
  term	LOG_OUTPUT	Callback	Yes	None

• Return value

  Return value	Description
  OPRT_OK	Operation succeeded.
  Error codes	Error codes returned when execution failed.

DelOutputTerm

• Function prototype

  VOID DelOutputTerm(IN CONST CHAR_T *name);
  

• Functional description

  Cancel the log callback registered by the interface AddOutputTerm.

• Parameter description

  Name	Description	Type	Required	Setting method
  name	The name of the log callback	String	Yes	Cancel the log callback registered by the interface AddOutputTerm.

• Return value. VOID

SetLogManageAttr

• Function prototype

  OPERATE_RET SetLogManageAttr(IN CONST LOG_LEVEL curLogLevel);
  

• Functional description

  Set the log level.

• Parameter description

  Name	Description	Type	Required	Setting method
  curLogLevel	Log level	UINT	Yes	See the description of uni_log.h.

• Return value

  Return value	Description
  OPRT_OK	Operation succeeded.
  Error codes	Error codes returned when execution failed.

Timer

Add a system timer

• Function prototype

  OPERATE_RET sys_add_timer(IN CONST P_TIMER_FUNC pTimerFunc,
  IN CONST PVOID pTimerArg, OUT TIMER_ID *p_timerID);
  

• Functional description

  Add a system timer.

• Parameter description

  Name	Description	Type	Required	Setting method
  pTimerFunc	Function of timer processing	P_TIMER_FUNC	Yes	The pointer of the callback function called by the timer aging.
  pTimerArg	Parameter of timer processing	PVOID	Yes	Timer related parameters. The specific type is determined by the inside of a callback function.
  p_timerID	Timer ID No.	TIMER_ID *	Yes	Output parameter. timer id is returned if a timer is added successfully.

• Return value

  Return value	Description
  OPERATE_RET	Error code

sys_stop_timer

• Function prototype

  OPERATE_RET sys_stop_timer(IN CONST TIMER_ID timerID));
  

• Functional description

  Stop a timer.

• Parameter description

  Name	Description	Type	Required	Setting method
  timerID	Timer ID No.	TIMER_ID *	Yes	Timer’s timer id that needs to be stopped.

• Return value

  Return value	Description
  OPERATE_RET	Error code

IsThisSysTimerRun

• Function prototype

  BOOL IsThisSysTimerRun(IN CONST TIMER_ID timerID);
  

• Functional description

  Determine whether a timer is running.

• Parameter description

  Name	Description	Type	Required	Setting method
  timerID	Timer ID No.	TIMER_ID *	Yes	Timer’s timer id that you shall determine whether it is running.

• Return value

  Return value	Description
  BOOL	Whether the timer is running.

sys_start_timer

• Function prototype

  OPERATE_RET sys_start_timer(IN CONST TIMER_ID timerID, IN CONST TIME_MS  timeCycle, IN CONST TIMER_TYPE timer_type);
  

• Functional description

  Start a timer.

• Parameter description

  Name	Description	Type	Required	Setting method
  timerID	Timer ID No.	TIMER_ID *	Yes	Timer’s timer id that you shall determine whether it is running.
  timeCycle	Timer cycle	TIME_MS	Yes	Timing cycle in milliseconds.
  timer_type	Timer type	TIMER_TYPE	Yes	TIMER_ONCE: one-time execution. TIMER_CYCLE: looping execution.

• Return value

  Return value	Description
  BOOL	Whether the timer is running.

Message queuing

CreateMsgQueAndInit

• Function prototype

  OPERATE_RET CreateMsgQueAndInit(OUT MSG_QUE_HANDLE *pMsgQueHandle);
  

• Functional description

  Create message queuing.

• Parameter description

  Name	Description	Type	Required	Setting method
  pMsgQueHandle	Struct handle of message management.	MSG_QUE_HANDLE	Yes	Output parameters. The message queue is successfully created, and the handle is returned.

• Return value

  Return value	Description
  OPERATE_RET	Error code

AddMsgNodeToQueue

• Function prototype

  OPERATE_RET AddMsgNodeToQueue(IN CONST MSG_QUE_HANDLE msgQueHandle, IN CONST MSG_ID msgID, IN CONST P_MSG_DATA pMsgData,IN CONST MSG_DATA_LEN msgDataLen, IN CONST MSG_TYPE msgType);
  

• Functional description

  Create message queuing.

• Parameter description

  Name	Description	Type	Required	Setting method
  pMsgQueHandle	Struct handle of message management.	MSG_QUE_HANDLE	Yes	The returned handle on successful creation.
  msgID	Message ID	MSG_ID	Yes
  pMsgData	Message data	P_MSG_DATA	Yes
  msgDataLen	Message data length	MSG_DATA_LEN	Yes
  msgType	Message type	MSG_TYPE	Yes

• Return value

  Return value	Description
  OPERATE_RET	Error code

GetMsgNodeFromQueue

• Function prototype

  OPERATE_RET GetMsgNodeFromQueue(IN CONST MSG_QUE_HANDLE msgQueHandle, IN CONST MSG_ID msgID, OUT P_MSG_LIST *ppMsgListNode);
  

• Functional description

  Get the message node of a specified ID.

• Parameter description

  Name	Description	Type	Required	Setting method
  pMsgQueHandle	Struct handle of message management.	MSG_QUE_HANDLE	Yes	The returned handle on successful creation.
  msgID	Message ID	MSG_ID	Yes
  pMsgListNode	Message node	P_MSG_LIST *	Yes	Output parameters. The obtained message nodes.

• Return value

  Return value	Description
  OPERATE_RET	Error code

GetFirstMsgFromQueue

• Function prototype

  OPERATE_RET GetFirstMsgFromQueue(IN CONST MSG_QUE_HANDLE msgQueHandle, OUT P_MSG_LIST *ppMsgListNode);
  

• Functional description

  Get the message node of the first incoming link.

• Parameter description

  Name	Description	Type	Required	Setting method
  pMsgQueHandle	Struct handle of message management.	MSG_QUE_HANDLE	Yes	The returned handle on successful creation.
  pMsgListNode	Message node	P_MSG_LIST *	Yes	Output parameters. The obtained message nodes.

• Return value

  Return value	Description
  OPERATE_RET	Error code

GetMsgNodeNum

• Function prototype

  OPERATE_RET GetMsgNodeNum(IN CONST MSG_QUE_HANDLE msgQueHandle,OUT PINT pMsgNodeNum);
  

• Functional description

  Get the total number of message nodes in the linked list.

• Parameter description

  Name	Description	Type	Required	Setting method
  pMsgQueHandle	Struct handle of message management.	MSG_QUE_HANDLE	Yes	The returned handle on successful creation.
  pMsgNodeNum	The total number of message nodes.	PINT	Yes	Output parameters. The total number of obtained message nodes.

• Return value

  Return value	Description
  OPERATE_RET	Error code

DelAndFreeMsgNodeFromQueue

• Function prototype

  OPERATE_RET DelAndFreeMsgNodeFromQueue(IN CONST MSG_QUE_HANDLE msgQueHandle, IN CONST P_MSG_LIST pMsgListNode);
  

• Functional description

  Delete the message node from the linked list and release the memory of message nodes.

• Parameter description

  Name	Description	Type	Required	Setting method
  pMsgQueHandle	Struct handle of message management.	MSG_QUE_HANDLE	Yes	The returned handle on successful creation.
  pMsgListNode	The deleted message nodes.	P_MSG_LIST	Yes	The deleted message nodes.

• Return value

  Return value	Description
  OPERATE_RET	Error code

ReleaseMsgQue

• Function prototype

  OPERATE_RET ReleaseMsgQue(IN CONST MSG_QUE_HANDLE msgQueHandle);
  

• Functional description

  Release the memory occupied by the message queue.

• Parameter description

  Name	Description	Type	Required	Setting method
  pMsgQueHandle	Struct handle of message management.	MSG_QUE_HANDLE	Yes	The returned handle on successful creation.

• Return value

  Return value	Description
  OPERATE_RET	Error code

PostMessage

• Function prototype

  OPERATE_RET PostMessage(IN CONST MSG_QUE_HANDLE msgQueHandle, IN CONST MSG_ID msgID, IN CONST P_MSG_DATA pMsgData, IN CONST MSG_DATA_LEN msgDataLen);
  

• Functional description

  Send a message to the module. It is a FIFO (First-In-First-Out) queue.

• Parameter description

  Name	Description	Type	Required	Setting method
  msgQueHandle	Handle of message processing	MSG_QUE_HANDLE	Yes	The returned handle on successful creation.
  msgID	Message ID	MSG_ID	Yes
  pMsgData	Message data	P_MSG_DATA	Yes
  msgDataLen	Message data length	MSG_DATA_LEN	Yes

• Return value

  Return value	Description
  OPERATE_RET	Error code

PostInstancyMsg

• Function prototype

  OPERATE_RET PostInstancyMsg(IN CONST MSG_QUE_HANDLE msgQueHandle, IN CONST MSG_ID msgID, IN CONST P_MSG_DATA pMsgData, IN CONST MSG_DATA_LEN msgDataLen);
  

• Functional description

  Send urgent messages (the message will be executed immediately).

• Parameter description

  Name	Description	Type	Required	Setting method
  msgQueHandle	Handle of message processing	MSG_QUE_HANDLE	Yes	The returned handle on successful creation.
  msgID	Message ID	MSG_ID	Yes
  pMsgData	Message data	P_MSG_DATA	Yes
  msgDataLen	Message data length	MSG_DATA_LEN	Yes

• Return value

  Return value	Description
  OPERATE_RET	Error code

WaitMessage

• Function prototype

  OPERATE_RET WaitMessage(IN CONST MSG_QUE_HANDLE msgQueHandle, OUT P_MSG_LIST *ppMsgListNode);
  

• Functional description

  Send urgent messages (the message will be executed immediately). It is called when there is a new message. DelAndFreeMsgNodeFromQueue shall be called to release the message after the message is processed.

• Parameter description

  Name	Description	Type	Required	Setting method
  msgQueHandle	Handle of message processing	MSG_QUE_HANDLE	Yes	The returned handle on successful creation.
  ppMsgListNode	Message node	P_MSG_LIST *	Yes	Output parameters. The received message nodes.

• Return value

  Return value	Description
  OPERATE_RET	Error code

Task queue

CreateAndStart

• Function prototype

  OPERATE_RET CreateAndStart(OUT THRD_HANDLE *pThrdHandle, IN CONST P_THRD_FUNC pThrdFunc,
  IN CONST PVOID pThrdFuncArg, IN CONST STACK_SIZE stack_size,IN CONST TRD_PRI pri,
  IN CONST CHAR *thrd_name);;
  

• Functional description

  Task creation

• Parameter description

  Name	Description	Type	Required	Setting method
  pThrdHandle	Task handle of pThrdHandle	MSG_QUE_HANDLE	Yes	The returned handle on successful creation.
  pThrdFunc	Function of task processing	P_THRD_FUNC	Yes
  pThrdFuncArg	Task parameters	PVOID	Yes
  stack_size	Specify task stack size	STACK_SIZE	Yes
  pri	Task priority	TRD_PRI	Yes
  thrd_name	Task name	CHAR *	Yes

• Return value

  Return value	Description
  OPERATE_RET	Error code

ThrdJoin

• Function prototype

  OPERATE_RET ThrdJoin(IN CONST THRD_HANDLE thrdHandle, OUT VOID **ppThrdRet);;
  

• Functional description

  Task creation

• Parameter description

  Name	Description	Type	Required	Setting method
  thrdHandle	Task handle of pThrdHandle	MSG_QUE_HANDLE	Yes	The returned handle on successful creation.
  ppThrdRet	Task exit code	VOID *	Yes

• Return value

  Return value	Description
  OPERATE_RET	Error code