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Merge pull request 'Feature: CAN via IRQ' (#24) from can_wo_isotp into main

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Reviewed-on: https://git.intern.spaceteamaachen.de/ALPAKA/rtos2-utils/pulls/24
Reviewed-by: dario <dario@noreply.git.intern.spaceteamaachen.de>
This commit is contained in:
dario 2024-05-06 12:57:02 +00:00
commit 1877c82f37
6 changed files with 82 additions and 525 deletions
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4
README.md
View File

@ -20,9 +20,9 @@ anywhere in the application code.
## Can Bus ## Can Bus
TODO Add description Mainly defers to the TACOS CAN module, but provides a simple interface for sending and receiving messages.
Configuration: Expandable for isotp.
## Watchdog ## Watchdog

6
include/sta/rtos/queue.tpp
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@ -24,19 +24,19 @@ namespace sta
template <typename T> template <typename T>
RtosQueue<T>::RtosQueue(uint32_t length) RtosQueue<T>::RtosQueue(uint32_t length)
: handle_{osMessageQueueNew(length, sizeof(Message), NULL)} : handle_{osMessageQueueNew(length, sizeof(T), NULL)}
{ {
STA_ASSERT(handle_ != NULL); STA_ASSERT(handle_ != NULL);
} }
template <typename T> template <typename T>
bool RtosQueue<T>::put(const Message & msg, uint32_t timeout /* = osWaitForever */) bool RtosQueue<T>::put(const T & msg, uint32_t timeout /* = osWaitForever */)
{ {
return (osOK == osMessageQueuePut(handle_, &msg, 0, timeout)); return (osOK == osMessageQueuePut(handle_, &msg, 0, timeout));
} }
template <typename T> template <typename T>
bool RtosQueue<T>::get(Message * outMsg, uint32_t timeout /* = osWaitForever */) bool RtosQueue<T>::get(T * outMsg, uint32_t timeout /* = osWaitForever */)
{ {
uint8_t prio; uint8_t prio;
return (osOK == osMessageQueueGet(handle_, outMsg, &prio, timeout)); return (osOK == osMessageQueueGet(handle_, outMsg, &prio, timeout));

126
include/sta/rtos/system/can_bus.hpp
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@ -5,7 +5,6 @@
#ifndef STA_RTOS_SYSTEM_CAN_BUS_HPP #ifndef STA_RTOS_SYSTEM_CAN_BUS_HPP
#define STA_RTOS_SYSTEM_CAN_BUS_HPP #define STA_RTOS_SYSTEM_CAN_BUS_HPP
/** /**
* @defgroup STA_RTOS_CanBus CAN driver * @defgroup STA_RTOS_CanBus CAN driver
* @ingroup STA_RTOS_API * @ingroup STA_RTOS_API
@ -20,16 +19,17 @@
* *
* @ingroup STA_RTOS_BuildConfig * @ingroup STA_RTOS_BuildConfig
*/ */
# define STA_RTOS_CAN_BUS_ENABLE # define STA_CAN_BUS_ENABLE
#endif // DOXYGEN #endif // DOXYGEN
#include <sta/config.hpp> #include <sta/config.hpp>
#ifdef STA_RTOS_CAN_BUS_ENABLE #ifdef STA_CAN_BUS_ENABLE
#include <sta/bus/can/controller.hpp>
#include <sta/can/controller.hpp> #include <sta/devices/stm32/can.hpp>
#include <sta/rtos/c_api/can_msg.h> #include <sta/rtos/c_api/can_msg.h>
#include <sta/time.hpp>
#include <cstdint> #include <cstdint>
@ -60,34 +60,30 @@
* @{ * @{
*/ */
/** /**
* @brief CAN frame available. * @brief CAN frame available.
*/ */
#define STA_RTOS_CAN_FLAG_MSG_AVAIL 0x000010U #define STA_RTOS_CAN_FLAG_MSG_AVAIL 0x1U
/** /**
* @brief Send CAN message. * @brief Send CAN message.
*/ */
#define STA_RTOS_CAN_FLAG_MSG_SEND 0x000020U #define STA_RTOS_CAN_FLAG_MSG_SEND 0x1U << 1
/** /**
* @brief CAN data message in queue. * @brief CAN data message in queue.
*/ */
#define STA_RTOS_CAN_FLAG_DATA_QUEUED 0x000040U #define STA_RTOS_CAN_FLAG_DATA_QUEUED 0x1U << 2
/** /**
* @brief CAN system message in queue. * @brief CAN system message in queue.
*/ */
#define STA_RTOS_CAN_FLAG_SYS_QUEUED 0x000080U #define STA_RTOS_CAN_FLAG_SYS_QUEUED 0x1U << 3
/**
* @brief Show ISOTP statistics.
*/
#define STA_RTOS_CAN_FLAG_SHOW_STATS 0x000100U
/** /**
* @brief CAN SID bits used for system messages. * @brief CAN SID bits used for system messages.
*/ */
#define STA_CAN_SID_SYS_BITS UINT32_C(0x3) #define STA_CAN_SID_SYS_BITS UINT32_C(0x3)
#define STA_RTOS_CAN_ANY STA_RTOS_CAN_FLAG_MSG_AVAIL | STA_RTOS_CAN_FLAG_MSG_AVAIL | STA_RTOS_CAN_FLAG_DATA_QUEUED | STA_RTOS_CAN_FLAG_SYS_QUEUED
/** @} */ /** @} */
@ -108,62 +104,66 @@ namespace sta
/** /**
* @brief Return CanController for use in CAN system task. * @brief Return CAN_HandleTypeDef for use in CAN system task.
* *
* Implementation must be provided by application. * Implementation must be provided by application.
*/ */
extern CanController * getCanController(); extern CAN_HandleTypeDef * getCanController();
/**
* @brief Send notification to CAN driver.
*
* @param flags Event flags
*/
void notifyCanBus(uint32_t flags);
/**
* @brief Place data message in CAN driver TX queue.
*
* @param msg Message to transmit
* @param timeout Timeout for placing message (0 = no wait, osWaitForever = blocking)
* @return True if message was queued successfully
*/
bool queueCanBusMsg(const CanDataMsg & msg, uint32_t timeout);
/**
* @brief Place system message in CAN driver TX queue.
*
* @param msg Message to transmit
* @param timeout Timeout for placing message (0 = no wait, osWaitForever = blocking)
* @return True if message was queued successfully
*/
bool queueCanBusMsg(const CanSysMsg & msg, uint32_t timeout);
/**
* @brief Retrieve data message from CAN driver TX queue.
*
* @param[out] msg Output address for retrieved message
* @param timeout Timeout for retrieving message (0 = no wait, osWaitForever = blocking)
* @return True if message was retrieved successfully
*/
bool getCanBusMsg(CanDataMsg * msg, uint32_t timeout);
/**
* @brief Retrieve system message from CAN driver TX queue.
*
* @param[out] msg Destination for retrieved message
* @param timeout Timeout for retrieving message (0 = no wait, osWaitForever = blocking)
* @return True if message was retrieved successfully
*/
bool getCanBusMsg(CanSysMsg * msg, uint32_t timeout);
/** @} */ /** @} */
} // namespace rtos } // namespace rtos
} // namespace sta } // namespace sta
namespace sta
{
#endif // STA_RTOS_CAN_BUS_ENABLE class AlpakaCanBus
{
public:
static const uint8_t FIFO_SYS = 0;
static const uint8_t FIFO_DATA = 1;
public:
AlpakaCanBus(CanController * controller, TimeMsFn timeMs);
/**
* @brief Send system message.
*
* @param msg Message
*/
void send(const CanSysMsg & msg);
private:
/**
* @brief Configure CAN filters.
*/
void setupSubscriptions();
private:
CanController * controller_;
};
} // namespace sta
namespace debug
{
/**
* @brief Output CAN frame ID to UART.
*
* @param id Frame ID
*/
void printFrameID(const sta::CanFrameId & id);
/**
* @brief Output CAN frame payload to UART.
*
* @param payload Payload buffer
* @param size Payload size
*/
void printPayloadHex(const uint8_t * payload, uint8_t size);
} // namespace debug
#endif // STA_CAN_BUS_ENABLE
#endif // STA_RTOS_SYSTEM_CAN_BUS_HPP #endif // STA_RTOS_SYSTEM_CAN_BUS_HPP

2
src/debug/stack_overflow.cpp
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@ -1,7 +1,7 @@
#include <sta/config.hpp> #include <sta/config.hpp>
#ifdef STA_RTOS_STACK_OVERFLOW_HOOK #ifdef STA_RTOS_STACK_OVERFLOW_HOOK
#include <sta/assert.hpp> #include <sta/debug/assert.hpp>
#include <sta/debug_serial.hpp> #include <sta/debug_serial.hpp>
#include <FreeRTOS.h> #include <FreeRTOS.h>

466
src/system/can_bus.cpp
View File

@ -2,155 +2,25 @@
* @file * @file
* @brief CAN driver thread. * @brief CAN driver thread.
*/ */
#include <sta/config.hpp>
#ifdef STA_RTOS_CAN_BUS_ENABLE
#include <sta/assert.hpp> #include <sta/config.hpp>
#include <sta/can/subscribable.hpp> #ifdef STA_CAN_BUS_ENABLE
#include <sta/debug_serial.hpp>
#include <sta/debug/assert.hpp>
#include <sta/debug/debug.hpp>
#include <sta/bus/can/subscribable.hpp>
#include <sta/lang.hpp> #include <sta/lang.hpp>
#include <sta/proto/isotp/transmitter.hpp>
#include <sta/proto/isotp/receiver.hpp>
#include <sta/rtos/defs.hpp> #include <sta/rtos/defs.hpp>
#include <sta/rtos/system/can_bus.hpp>
#include <sta/rtos/system/events.hpp> #include <sta/rtos/system/events.hpp>
#include <sta/stm32/hal.hpp> #include <sta/devices/stm32/hal.hpp>
#include <sta/rtos/system/events.hpp>
#include <sta/rtos/system/can_bus.hpp>
#include <cmsis_os2.h> #include <cmsis_os2.h>
#include <FreeRTOS.h> #include <FreeRTOS.h>
#include <cstring> #include <cstring>
namespace
{
StaticTask_t canBusCB;
StaticQueue_t canBusDataQueueCB;
StaticQueue_t canBusSysQueueCB;
osThreadId_t canBusTaskHandle = nullptr;
osMessageQueueId_t canBusDataQueueHandle = nullptr;
osMessageQueueId_t canBusSysQueueHandle = nullptr;
sta::CanController * canBusController = nullptr;
const size_t queueLength = 8;
// Static memory buffers
CanDataMsg canBusDataQueueBuffer[queueLength];
CanSysMsg canBusSysQueueBuffer[queueLength];
uint32_t canBusStack[256];
}
extern "C" void canBusTask(void *);
namespace sta
{
namespace rtos
{
void initCanBus()
{
// Create thread using static allocation
const osThreadAttr_t taskAttributes = {
.name = "sysCanBus",
.cb_mem = &canBusCB,
.cb_size = sizeof(canBusCB),
.stack_mem = &canBusStack[0],
.stack_size = sizeof(canBusStack),
.priority = (osPriority_t) osPriorityLow,
};
canBusTaskHandle = osThreadNew(canBusTask, NULL, &taskAttributes);
STA_ASSERT_MSG(canBusTaskHandle != nullptr, "System CAN task initialization failed");
// Create message queues using static allocation
const osMessageQueueAttr_t dataQueueAttributes = {
.name = "sysCanDataOut",
.attr_bits = 0,
.cb_mem = &canBusDataQueueCB,
.cb_size = sizeof(canBusDataQueueCB),
.mq_mem = &canBusDataQueueBuffer,
.mq_size = sizeof(canBusDataQueueBuffer)
};
canBusDataQueueHandle = osMessageQueueNew(queueLength, sizeof(CanDataMsg), &dataQueueAttributes);
STA_ASSERT_MSG(canBusDataQueueHandle != nullptr, "System CAN data message queue initialization failed");
const osMessageQueueAttr_t sysQueueAttributes = {
.name = "sysCanSysOut",
.attr_bits = 0,
.cb_mem = &canBusSysQueueCB,
.cb_size = sizeof(canBusSysQueueCB),
.mq_mem = &canBusSysQueueBuffer,
.mq_size = sizeof(canBusSysQueueBuffer)
};
canBusSysQueueHandle = osMessageQueueNew(queueLength, sizeof(CanSysMsg), &sysQueueAttributes);
STA_ASSERT_MSG(canBusSysQueueHandle != nullptr, "System CAN system message queue initialization failed");
// Get initialized CAN controller from application
canBusController = getCanController();
}
void notifyCanBus(uint32_t flags)
{
// Send flags to thread
osThreadFlagsSet(canBusTaskHandle, flags);
}
bool queueCanBusMsg(const CanDataMsg & msg, uint32_t timeout)
{
STA_ASSERT((msg.header.sid & STA_CAN_SID_SYS_BITS) == 0);
STA_ASSERT(msg.header.payloadLength <= sizeof(msg.payload));
if (osOK == osMessageQueuePut(canBusDataQueueHandle, &msg, 0, timeout))
{
// Signal thread
osThreadFlagsSet(canBusTaskHandle, STA_RTOS_CAN_FLAG_DATA_QUEUED);
return true;
}
else
{
return false;
}
}
bool queueCanBusMsg(const CanSysMsg & msg, uint32_t timeout)
{
STA_ASSERT((msg.header.sid & ~STA_CAN_SID_SYS_BITS) == 0);
if (osOK == osMessageQueuePut(canBusSysQueueHandle, &msg, 0, timeout))
{
// Signal thread
osThreadFlagsSet(canBusTaskHandle, STA_RTOS_CAN_FLAG_SYS_QUEUED);
return true;
}
else
{
return false;
}
}
bool getCanBusMsg(CanDataMsg * msg, uint32_t timeout)
{
return (osOK == osMessageQueueGet(canBusDataQueueHandle, msg, 0, timeout));
}
bool getCanBusMsg(CanSysMsg * msg, uint32_t timeout)
{
return (osOK == osMessageQueueGet(canBusSysQueueHandle, msg, 0, timeout));
}
} // namespace rtos
} // namespace sta
namespace debug namespace debug
{ {
/** /**
@ -188,146 +58,11 @@ namespace debug
} }
} // namespace debug } // namespace debug
namespace dummy
{
void handleSysMessage(const sta::CanRxHeader & header, const uint8_t * payload)
{
// Write frame payload to DebugSerial
STA_DEBUG_PRINTLN("[event] RX sys frame");
debug::printFrameID(header.id);
debug::printPayloadHex(payload, header.payloadLength);
// TODO Forward message to other threads
}
void handleDataMessage(const sta::IsotpMessage & msg)
{
STA_ASSERT(msg.buffer != nullptr);
STA_ASSERT(msg.size != 0);
STA_DEBUG_PRINTLN("[event] RX data message");
debug::printFrameID(msg.frameID);
// TODO Forward message to other threads
// if (buffer[0] == DEMO_BMP_PACKET_ID)
// {
// BmpPacket packet;
// if (unpack(buffer + 1, size - 1, &packet))
// {
// STA_DEBUG_PRINTLN();
// STA_DEBUG_PRINTLN("# ############");
// STA_DEBUG_PRINTLN("# ## BMP380 ##");
// STA_DEBUG_PRINTLN("# ############");
// STA_DEBUG_PRINTLN("#");
//
// STA_DEBUG_PRINT("# temperature: ");
// STA_DEBUG_PRINT(packet.temperature);
// STA_DEBUG_PRINTLN(" *C");
// STA_DEBUG_PRINT("# pressure: ");
// STA_DEBUG_PRINT(packet.pressure);
// STA_DEBUG_PRINTLN(" Pa");
// STA_DEBUG_PRINT("# altitude: ");
// STA_DEBUG_PRINT(packet.altitude);
// STA_DEBUG_PRINTLN(" m");
// STA_DEBUG_PRINTLN();
// }
// else
// {
// STA_DEBUG_PRINTLN("[error] BMP unpack failed");
// }
// }
// else
{
STA_DEBUG_PRINT("ID: ");
STA_DEBUG_PRINTLN(msg.buffer[0], sta::IntegerBase::HEX);
STA_DEBUG_PRINT("size: ");
STA_DEBUG_PRINTLN(msg.size);
}
}
} // namespace dummy
namespace sta namespace sta
{ {
class AlpakaCanBus AlpakaCanBus::AlpakaCanBus(CanController * controller, TimeMsFn timeMs)
: controller_{controller}
{ {
public:
using SysMsgHandler = void (*)(const CanRxHeader &, const uint8_t *);
using DataMsgHandler = void (*)(const IsotpMessage &);
static const uint8_t FIFO_SYS = 0;
static const uint8_t FIFO_DATA = 1;
public:
AlpakaCanBus(CanController * controller, TimeMsFn timeMs, SysMsgHandler sysMsgHandler, DataMsgHandler dataMsgHandler);
/**
* @brief Send system message.
*
* @param msg Message
*/
void send(const CanSysMsg & msg);
/**
* @brief Send data message.
*
* @param msg Message
*/
void send(const CanDataMsg & msg);
/**
* @brief Process transmissions.
*
* Call regularly to advance transmission.
*/
void processTx();
/**
* @brief Process received CAN messages.
*/
void processRx();
/**
* @brief Display ISOTP TX/RX statistics.
*/
void showStatistics();
private:
/**
* @brief Configure CAN filters.
*/
void setupSubscriptions();
/**
* @brief Handle received data message CAN frames.
*
* @param header CAN frame header
* @param payload Payload buffer
*/
void receiveDataFrame(const CanRxHeader & header, const uint8_t * payload);
private:
CanController * controller_;
IsotpTransmitter tx_;
IsotpReceiver rx_;
SysMsgHandler handleSysMsg_;
DataMsgHandler handleDataMsg_;
};
AlpakaCanBus::AlpakaCanBus(CanController * controller, TimeMsFn timeMs, SysMsgHandler sysMsgHandler, DataMsgHandler dataMsgHandler)
: controller_{controller}, tx_{controller, timeMs}, rx_{controller, timeMs}, handleSysMsg_{sysMsgHandler}, handleDataMsg_{dataMsgHandler}
{
STA_ASSERT(handleSysMsg_ != nullptr);
STA_ASSERT(handleDataMsg_ != nullptr);
setupSubscriptions(); setupSubscriptions();
} }
@ -336,98 +71,13 @@ namespace sta
{ {
CanTxHeader header; CanTxHeader header;
header.id.format = static_cast<CanIdFormat>(msg.header.format); header.id.format = static_cast<CanIdFormat>(msg.header.format);
header.id.sid = msg.header.sid & STA_CAN_SID_SYS_BITS; header.id.sid = msg.header.sid;
header.id.eid = msg.header.eid; header.id.eid = msg.header.eid;
header.payloadLength = msg.header.payloadLength; header.payloadLength = msg.header.payloadLength;
controller_->sendFrame(header, msg.payload); controller_->sendFrame(header, msg.payload);
} }
void AlpakaCanBus::send(const CanDataMsg & msg)
{
CanFrameId frameID;
frameID.format = static_cast<CanIdFormat>(msg.header.format);
frameID.sid = msg.header.sid & ~STA_CAN_SID_SYS_BITS;
frameID.eid = msg.header.eid;
// Start transmission via ISO-TP
tx_.send(frameID, msg.payload, msg.header.payloadLength);
}
inline void AlpakaCanBus::processTx()
{
tx_.process();
}
void AlpakaCanBus::processRx()
{
for (auto fifo : controller_->getPendingRxFifos())
{
CanRxHeader header;
uint8_t payload[STA_RTOS_CAN_BUS_MAX_PAYLOAD_SIZE];
if (controller_->receiveFrame(fifo, &header, payload))
{
// debug::displayFrameUART(frame);
// Forward frame to callback
switch (fifo)
{
case FIFO_SYS:
handleSysMsg_(header, payload);
break;
case FIFO_DATA:
receiveDataFrame(header, payload);
break;
default:
STA_ASSERT(false);
}
}
}
}
void AlpakaCanBus::showStatistics()
{
STA_DEBUG_PRINTLN();
STA_DEBUG_PRINTLN("# ######################");
STA_DEBUG_PRINTLN("# ## ISOTP statistics ##");
STA_DEBUG_PRINTLN("# ######################");
STA_DEBUG_PRINTLN("#");
const auto & txStats = tx_.stats();
STA_DEBUG_PRINTLN("# Transmitter");
STA_DEBUG_PRINT("# messages: ");
STA_DEBUG_PRINTLN(txStats.messages);
STA_DEBUG_PRINT("# blocks: ");
STA_DEBUG_PRINTLN(txStats.blocks);
STA_DEBUG_PRINT("# frames: ");
STA_DEBUG_PRINTLN(txStats.frames);
STA_DEBUG_PRINT("# timeouts: ");
STA_DEBUG_PRINTLN(txStats.timeouts);
STA_DEBUG_PRINTLN("#");
const auto & rxStats = rx_.stats();
STA_DEBUG_PRINTLN("# Receiver");
STA_DEBUG_PRINT("# messages: ");
STA_DEBUG_PRINTLN(rxStats.messages);
STA_DEBUG_PRINT("# blocks: ");
STA_DEBUG_PRINTLN(rxStats.blocks);
STA_DEBUG_PRINT("# frames: ");
STA_DEBUG_PRINTLN(rxStats.frames);
STA_DEBUG_PRINT("# timeouts: ");
STA_DEBUG_PRINTLN(rxStats.timeouts);
STA_DEBUG_PRINT("# flow control errors: ");
STA_DEBUG_PRINTLN(rxStats.flowErrors);
STA_DEBUG_PRINT("# overflows: ");
STA_DEBUG_PRINTLN(rxStats.overflows);
STA_DEBUG_PRINTLN();
}
void AlpakaCanBus::setupSubscriptions() void AlpakaCanBus::setupSubscriptions()
{ {
// Make sure to receive all messages // Make sure to receive all messages
@ -452,96 +102,6 @@ namespace sta
filter.fifo = FIFO_DATA; filter.fifo = FIFO_DATA;
controller_->configureFilter(FIFO_DATA, filter, true); controller_->configureFilter(FIFO_DATA, filter, true);
} }
void AlpakaCanBus::receiveDataFrame(const CanRxHeader & header, const uint8_t * payload)
{
// Write frame payload to DebugSerial
STA_DEBUG_PRINTLN("[event] RX data frame");
debug::printPayloadHex(payload, header.payloadLength);
// Process RX frame
auto handle = rx_.processFrame(header, payload);
if (handle != IsotpReceiver::INVALID_HANDLE)
{
// Get message if completed
IsotpMessage msg;
if (rx_.getMessage(handle, &msg))
{
handleDataMsg_(msg);
}
// Handle FC responses
rx_.processFC(handle);
}
// Process TX frame
tx_.processFrame(header, payload);
}
} // namespace sta } // namespace sta
#endif // STA_CAN_BUS_ENABLE
/**
* @brief CAN driver thread entry function.
*/
void canBusTask(void *)
{
using namespace sta;
STA_ASSERT_MSG(canBusController != nullptr, "System CAN bus not initialized");
// Setup ISO-TP transceiver
AlpakaCanBus canBus(canBusController, HAL_GetTick, dummy::handleSysMessage, dummy::handleDataMessage);
rtos::waitForStartupEvent();
while (true)
{
uint32_t flags = osThreadFlagsWait(STA_RTOS_THREAD_FLAGS_VALID_BITS, osFlagsWaitAny, 50);
if (flags != static_cast<uint32_t>(osErrorTimeout))
{
STA_ASSERT_MSG((flags & osStatusReserved) == flags, "Unexpected error occurred in wait");
if (flags & STA_RTOS_CAN_FLAG_SYS_QUEUED)
{
// Take messages from queue until empty
CanSysMsg msg;
while (rtos::getCanBusMsg(&msg, 0))
{
canBus.send(msg);
}
}
if (flags & STA_RTOS_CAN_FLAG_DATA_QUEUED)
{
// Take messages from queue until empty
CanDataMsg msg;
while (rtos::getCanBusMsg(&msg, 0))
{
canBus.send(msg);
}
}
if (flags & STA_RTOS_CAN_FLAG_MSG_AVAIL)
{
STA_DEBUG_PRINTLN("[event] CAN INT");
canBus.processRx();
}
if (flags & STA_RTOS_CAN_FLAG_SHOW_STATS)
{
canBus.showStatistics();
}
}
// Process ISOTP transmissions
canBus.processTx();
}
}
#endif // STA_RTOS_CAN_BUS_ENABLE

3
src/system/startup.cpp
View File

@ -32,9 +32,6 @@ namespace sta
initWatchdog(); initWatchdog();
#endif // STA_RTOS_WATCHDOG_ENABLE #endif // STA_RTOS_WATCHDOG_ENABLE
#ifdef STA_RTOS_CAN_BUS_ENABLE
initCanBus();
#endif // STA_RTOS_CAN_BUS_ENABLE
} }
} // namespace rtos } // namespace rtos
} // namespace sta } // namespace sta