openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
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#pragma once
#include <cstdint>
#include <ctime>
#include <functional>
#include <list>
#include <memory>
#include <optional>
#include <vector>
#include "cereal/gen/cpp/car.capnp.h"
#include "cereal/gen/cpp/log.capnp.h"
#include "panda/board/health.h"
#include "panda/board/can_definitions.h"
#include "selfdrive/boardd/panda_comms.h"
#define USB_TX_SOFT_LIMIT (0x100U)
#define USBPACKET_MAX_SIZE (0x40)
#define RECV_SIZE (0x4000U)
#define CAN_REJECTED_BUS_OFFSET 0xC0U
#define CAN_RETURNED_BUS_OFFSET 0x80U
struct __attribute__((packed)) can_header {
uint8_t reserved : 1;
uint8_t bus : 3;
uint8_t data_len_code : 4;
uint8_t rejected : 1;
uint8_t returned : 1;
uint8_t extended : 1;
uint32_t addr : 29;
};
struct can_frame {
long address;
std::string dat;
long busTime;
long src;
};
class Panda {
private:
std::unique_ptr<PandaCommsHandle> handle;
std::vector<uint8_t> recv_buf;
public:
Panda(std::string serial="", uint32_t bus_offset=0);
std::string hw_serial;
cereal::PandaState::PandaType hw_type = cereal::PandaState::PandaType::UNKNOWN;
bool has_rtc = false;
const uint32_t bus_offset;
bool connected();
bool comms_healthy();
// Static functions
static std::vector<std::string> list();
// Panda functionality
cereal::PandaState::PandaType get_hw_type();
void set_safety_model(cereal::CarParams::SafetyModel safety_model, uint16_t safety_param=0U);
void set_alternative_experience(uint16_t alternative_experience);
void set_rtc(struct tm sys_time);
struct tm get_rtc();
void set_fan_speed(uint16_t fan_speed);
uint16_t get_fan_speed();
void set_ir_pwr(uint16_t ir_pwr);
std::optional<health_t> get_state();
std::optional<can_health_t> get_can_state(uint16_t can_number);
void set_loopback(bool loopback);
std::optional<std::vector<uint8_t>> get_firmware_version();
std::optional<std::string> get_serial();
void set_power_saving(bool power_saving);
void enable_deepsleep();
void send_heartbeat(bool engaged);
void set_can_speed_kbps(uint16_t bus, uint16_t speed);
void set_data_speed_kbps(uint16_t bus, uint16_t speed);
void set_canfd_non_iso(uint16_t bus, bool non_iso);
void can_send(capnp::List<cereal::CanData>::Reader can_data_list);
bool can_receive(std::vector<can_frame>& out_vec);
protected:
// for unit tests
Panda(uint32_t bus_offset) : bus_offset(bus_offset) {}
void pack_can_buffer(const capnp::List<cereal::CanData>::Reader &can_data_list,
std::function<void(uint8_t *, size_t)> write_func);
bool unpack_can_buffer(uint8_t *data, int size, std::vector<can_frame> &out_vec);
};