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ardupilot/libraries/AP_UAVCAN/AP_UAVCAN.h

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/*
* This file is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This file is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Eugene Shamaev, Siddharth Bharat Purohit
*/
#pragma once
#include <AP_HAL/AP_HAL.h>
#if HAL_ENABLE_LIBUAVCAN_DRIVERS
#include <uavcan/uavcan.hpp>
#include "AP_UAVCAN_IfaceMgr.h"
#include "AP_UAVCAN_Clock.h"
#include <AP_CANManager/AP_CANManager.h>
#include <AP_HAL/Semaphores.h>
#include <AP_Param/AP_Param.h>
#include <AP_ESC_Telem/AP_ESC_Telem_Backend.h>
#include <uavcan/protocol/param/GetSet.hpp>
#include <uavcan/protocol/param/ExecuteOpcode.hpp>
#include <SRV_Channel/SRV_Channel.h>
#ifndef UAVCAN_SRV_NUMBER
#define UAVCAN_SRV_NUMBER NUM_SERVO_CHANNELS
#endif
#define AP_UAVCAN_SW_VERS_MAJOR 1
#define AP_UAVCAN_SW_VERS_MINOR 0
#define AP_UAVCAN_HW_VERS_MAJOR 1
#define AP_UAVCAN_HW_VERS_MINOR 0
#define AP_UAVCAN_MAX_LED_DEVICES 4
// fwd-declare callback classes
class ButtonCb;
class TrafficReportCb;
class ActuatorStatusCb;
class ESCStatusCb;
class DebugCb;
class ParamGetSetCb;
class ParamExecuteOpcodeCb;
class AP_PoolAllocator;
class AP_UAVCAN_DNA_Server;
#if defined(__GNUC__) && (__GNUC__ > 8)
#define DISABLE_W_CAST_FUNCTION_TYPE_PUSH \
_Pragma("GCC diagnostic push") \
_Pragma("GCC diagnostic ignored \"-Wcast-function-type\"")
#define DISABLE_W_CAST_FUNCTION_TYPE_POP \
_Pragma("GCC diagnostic pop")
#else
#define DISABLE_W_CAST_FUNCTION_TYPE_PUSH
#define DISABLE_W_CAST_FUNCTION_TYPE_POP
#endif
#if defined(__GNUC__) && (__GNUC__ >= 11)
#define DISABLE_W_CAST_FUNCTION_TYPE_WITH_VOID (void*)
#else
#define DISABLE_W_CAST_FUNCTION_TYPE_WITH_VOID
#endif
/*
Frontend Backend-Registry Binder: Whenever a message of said DataType_ from new node is received,
the Callback will invoke registry to register the node as separate backend.
*/
#define UC_REGISTRY_BINDER(ClassName_, DataType_) \
class ClassName_ : public AP_UAVCAN::RegistryBinder<DataType_> { \
typedef void (*CN_Registry)(AP_UAVCAN*, uint8_t, const ClassName_&); \
public: \
ClassName_() : RegistryBinder() {} \
DISABLE_W_CAST_FUNCTION_TYPE_PUSH \
ClassName_(AP_UAVCAN* uc, CN_Registry ffunc) : \
RegistryBinder(uc, (Registry)DISABLE_W_CAST_FUNCTION_TYPE_WITH_VOID ffunc) {} \
DISABLE_W_CAST_FUNCTION_TYPE_POP \
}
#define UC_CLIENT_CALL_REGISTRY_BINDER(ClassName_, DataType_) \
class ClassName_ : public AP_UAVCAN::ClientCallRegistryBinder<DataType_> { \
typedef void (*CN_Registry)(AP_UAVCAN*, uint8_t, const ClassName_&); \
public: \
ClassName_() : ClientCallRegistryBinder() {} \
DISABLE_W_CAST_FUNCTION_TYPE_PUSH \
ClassName_(AP_UAVCAN* uc, CN_Registry ffunc) : \
ClientCallRegistryBinder(uc, (ClientCallRegistry)DISABLE_W_CAST_FUNCTION_TYPE_WITH_VOID ffunc) {} \
DISABLE_W_CAST_FUNCTION_TYPE_POP \
}
class AP_UAVCAN : public AP_CANDriver, public AP_ESC_Telem_Backend {
friend class AP_UAVCAN_DNA_Server;
public:
AP_UAVCAN();
~AP_UAVCAN();
static const struct AP_Param::GroupInfo var_info[];
// Return uavcan from @driver_index or nullptr if it's not ready or doesn't exist
static AP_UAVCAN *get_uavcan(uint8_t driver_index);
bool prearm_check(char* fail_msg, uint8_t fail_msg_len) const;
void init(uint8_t driver_index, bool enable_filters) override;
bool add_interface(AP_HAL::CANIface* can_iface) override;
uavcan::Node<0>* get_node() { return _node; }
uint8_t get_driver_index() const { return _driver_index; }
FUNCTOR_TYPEDEF(ParamGetSetIntCb, bool, AP_UAVCAN*, const uint8_t, const char*, int32_t &);
FUNCTOR_TYPEDEF(ParamGetSetFloatCb, bool, AP_UAVCAN*, const uint8_t, const char*, float &);
FUNCTOR_TYPEDEF(ParamSaveCb, void, AP_UAVCAN*, const uint8_t, bool);
///// SRV output /////
void SRV_push_servos(void);
///// LED /////
bool led_write(uint8_t led_index, uint8_t red, uint8_t green, uint8_t blue);
// buzzer
void set_buzzer_tone(float frequency, float duration_s);
// send RTCMStream packets
void send_RTCMStream(const uint8_t *data, uint32_t len);
// Send Reboot command
// Note: Do not call this from outside UAVCAN thread context,
// you can call this from uavcan callbacks and handlers.
// THIS IS NOT A THREAD SAFE API!
void send_reboot_request(uint8_t node_id);
// set param value
bool set_parameter_on_node(uint8_t node_id, const char *name, float value, ParamGetSetFloatCb *cb);
bool set_parameter_on_node(uint8_t node_id, const char *name, int32_t value, ParamGetSetIntCb *cb);
bool get_parameter_on_node(uint8_t node_id, const char *name, ParamGetSetFloatCb *cb);
bool get_parameter_on_node(uint8_t node_id, const char *name, ParamGetSetIntCb *cb);
// Save parameters
bool save_parameters_on_node(uint8_t node_id, ParamSaveCb *cb);
template <typename DataType_>
class RegistryBinder {
protected:
typedef void (*Registry)(AP_UAVCAN* _ap_uavcan, uint8_t _node_id, const RegistryBinder& _cb);
AP_UAVCAN* _uc;
Registry _ffunc;
public:
RegistryBinder() :
_uc(),
_ffunc(),
msg() {}
RegistryBinder(AP_UAVCAN* uc, Registry ffunc) :
_uc(uc),
_ffunc(ffunc),
msg(nullptr) {}
void operator()(const uavcan::ReceivedDataStructure<DataType_>& _msg) {
msg = &_msg;
_ffunc(_uc, _msg.getSrcNodeID().get(), *this);
}
const uavcan::ReceivedDataStructure<DataType_> *msg;
};
// ClientCallRegistryBinder
template <typename DataType_>
class ClientCallRegistryBinder {
protected:
typedef void (*ClientCallRegistry)(AP_UAVCAN* _ap_uavcan, uint8_t _node_id, const ClientCallRegistryBinder& _cb);
AP_UAVCAN* _uc;
ClientCallRegistry _ffunc;
public:
ClientCallRegistryBinder() :
_uc(),
_ffunc(),
rsp() {}
ClientCallRegistryBinder(AP_UAVCAN* uc, ClientCallRegistry ffunc) :
_uc(uc),
_ffunc(ffunc),
rsp(nullptr) {}
void operator()(const uavcan::ServiceCallResult<DataType_>& _rsp) {
rsp = &_rsp;
_ffunc(_uc, _rsp.getCallID().server_node_id.get(), *this);
}
const uavcan::ServiceCallResult<DataType_> *rsp;
};
// options bitmask
enum class Options : uint16_t {
DNA_CLEAR_DATABASE = (1U<<0),
DNA_IGNORE_DUPLICATE_NODE = (1U<<1),
CANFD_ENABLED = (1U<<2),
DNA_IGNORE_UNHEALTHY_NODE = (1U<<3),
USE_ACTUATOR_PWM = (1U<<4),
};
// check if a option is set
bool option_is_set(Options option) const {
return (uint16_t(_options.get()) & uint16_t(option)) != 0;
}
// check if a option is set and if it is then reset it to
// 0. return true if it was set
bool check_and_reset_option(Options option);
// This will be needed to implement if UAVCAN is used with multithreading
// Such cases will be firmware update, etc.
class RaiiSynchronizer {};
private:
void loop(void);
///// SRV output /////
void SRV_send_actuator();
void SRV_send_esc();
///// LED /////
void led_out_send();
// buzzer
void buzzer_send();
// SafetyState
void safety_state_send();
// send notify vehicle state
void notify_state_send();
// send GNSS injection
void rtcm_stream_send();
// send parameter get/set request
void send_parameter_request();
// send parameter save request
void send_parameter_save_request();
// set parameter on a node
ParamGetSetIntCb *param_int_cb;
ParamGetSetFloatCb *param_float_cb;
bool param_request_sent = true;
HAL_Semaphore _param_sem;
uint8_t param_request_node_id;
// save parameters on a node
ParamSaveCb *save_param_cb;
bool param_save_request_sent = true;
HAL_Semaphore _param_save_sem;
uint8_t param_save_request_node_id;
// UAVCAN parameters
AP_Int8 _uavcan_node;
AP_Int32 _servo_bm;
AP_Int32 _esc_bm;
AP_Int8 _esc_offset;
AP_Int16 _servo_rate_hz;
AP_Int16 _options;
AP_Int16 _notify_state_hz;
AP_Int16 _pool_size;
AP_PoolAllocator *_allocator;
AP_UAVCAN_DNA_Server *_dna_server;
uavcan::Node<0> *_node;
uint8_t _driver_index;
uavcan::CanIfaceMgr* _iface_mgr;
char _thread_name[13];
bool _initialized;
///// SRV output /////
struct {
uint16_t pulse;
bool esc_pending;
bool servo_pending;
} _SRV_conf[UAVCAN_SRV_NUMBER];
uint8_t _SRV_armed;
uint32_t _SRV_last_send_us;
HAL_Semaphore SRV_sem;
///// LED /////
struct led_device {
uint8_t led_index;
uint8_t red;
uint8_t green;
uint8_t blue;
};
struct {
led_device devices[AP_UAVCAN_MAX_LED_DEVICES];
uint8_t devices_count;
uint64_t last_update;
} _led_conf;
HAL_Semaphore _led_out_sem;
// buzzer
struct {
HAL_Semaphore sem;
float frequency;
float duration;
uint8_t pending_mask; // mask of interfaces to send to
} _buzzer;
// GNSS RTCM injection
struct {
HAL_Semaphore sem;
uint32_t last_send_ms;
ByteBuffer *buf;
} _rtcm_stream;
// ESC
static HAL_Semaphore _telem_sem;
// safety status send state
uint32_t _last_safety_state_ms;
// notify vehicle state
uint32_t _last_notify_state_ms;
// incoming button handling
static void handle_button(AP_UAVCAN* ap_uavcan, uint8_t node_id, const ButtonCb &cb);
static void handle_traffic_report(AP_UAVCAN* ap_uavcan, uint8_t node_id, const TrafficReportCb &cb);
static void handle_actuator_status(AP_UAVCAN* ap_uavcan, uint8_t node_id, const ActuatorStatusCb &cb);
static void handle_ESC_status(AP_UAVCAN* ap_uavcan, uint8_t node_id, const ESCStatusCb &cb);
static bool is_esc_data_index_valid(const uint8_t index);
static void handle_debug(AP_UAVCAN* ap_uavcan, uint8_t node_id, const DebugCb &cb);
static void handle_param_get_set_response(AP_UAVCAN* ap_uavcan, uint8_t node_id, const ParamGetSetCb &cb);
static void handle_param_save_response(AP_UAVCAN* ap_uavcan, uint8_t node_id, const ParamExecuteOpcodeCb &cb);
};
#endif // #if HAL_ENABLE_LIBUAVCAN_DRIVERS
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