mirror of https://github.com/ArduPilot/ardupilot
289 lines
7.4 KiB
C++
289 lines
7.4 KiB
C++
/*
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implement protocol for controlling an IO microcontroller
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For bootstrapping this will initially implement the px4io protocol,
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but will later move to an ArduPilot specific protocol
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*/
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#include <AP_HAL/AP_HAL.h>
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#if HAL_WITH_IO_MCU
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#include "ch.h"
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#include "iofirmware/ioprotocol.h"
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#include <AP_RCMapper/AP_RCMapper.h>
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class AP_IOMCU {
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public:
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AP_IOMCU(AP_HAL::UARTDriver &uart);
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void init(void);
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// write to one channel
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void write_channel(uint8_t chan, uint16_t pwm);
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// read from one channel
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uint16_t read_channel(uint8_t chan);
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// cork output
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void cork(void);
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// push output
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void push(void);
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// set output frequency
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void set_freq(uint16_t chmask, uint16_t freq);
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// get output frequency
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uint16_t get_freq(uint16_t chan);
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// get state of safety switch
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AP_HAL::Util::safety_state get_safety_switch_state(void) const;
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// force safety on
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bool force_safety_on(void);
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// force safety off
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void force_safety_off(void);
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// set PWM of channels when safety is on
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void set_safety_pwm(uint16_t chmask, uint16_t period_us);
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// set mask of channels that ignore safety state
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void set_safety_mask(uint16_t chmask);
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// set PWM of channels when in FMU failsafe
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void set_failsafe_pwm(uint16_t chmask, uint16_t period_us);
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/*
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enable sbus output
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*/
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bool enable_sbus_out(uint16_t rate_hz);
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/*
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check for new RC input
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*/
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bool check_rcinput(uint32_t &last_frame_us, uint8_t &num_channels, uint16_t *channels, uint8_t max_channels);
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// Do DSM receiver binding
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void bind_dsm(uint8_t mode);
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// get the name of the RC protocol
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const char *get_rc_protocol(void);
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// get receiver RSSI
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int16_t get_RSSI(void) const {
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return rc_input.rssi;
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}
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/*
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get servo rail voltage
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*/
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float get_vservo(void) const { return reg_status.vservo * 0.001; }
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/*
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get rssi voltage
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*/
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float get_vrssi(void) const { return reg_status.vrssi * 0.001; }
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// set target for IMU heater
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void set_heater_duty_cycle(uint8_t duty_cycle);
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// set default output rate
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void set_default_rate(uint16_t rate_hz);
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// set to oneshot mode
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void set_oneshot_mode(void);
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// set to brushed mode
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void set_brushed_mode(void);
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// check if IO is healthy
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bool healthy(void);
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// shutdown IO protocol (for reboot)
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void shutdown();
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// setup for FMU failsafe mixing
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bool setup_mixing(RCMapper *rcmap, int8_t override_chan,
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float mixing_gain, uint16_t manual_rc_mask);
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// channel group masks
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const uint8_t ch_masks[3] = { 0x03,0x0C,0xF0 };
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static AP_IOMCU *get_singleton(void) {
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return singleton;
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}
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private:
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AP_HAL::UARTDriver &uart;
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void thread_main(void);
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// read count 16 bit registers
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bool read_registers(uint8_t page, uint8_t offset, uint8_t count, uint16_t *regs);
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// write count 16 bit registers
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bool write_registers(uint8_t page, uint8_t offset, uint8_t count, const uint16_t *regs);
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// write a single register
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bool write_register(uint8_t page, uint8_t offset, uint16_t v) {
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return write_registers(page, offset, 1, &v);
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}
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// modify a single register
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bool modify_register(uint8_t page, uint8_t offset, uint16_t clearbits, uint16_t setbits);
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// trigger an ioevent
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void trigger_event(uint8_t event);
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// IOMCU thread
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thread_t *thread_ctx;
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eventmask_t initial_event_mask;
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// time when we last read various pages
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uint32_t last_status_read_ms;
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uint32_t last_rc_read_ms;
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uint32_t last_servo_read_ms;
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uint32_t last_safety_option_check_ms;
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// last value of safety options
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uint16_t last_safety_options = 0xFFFF;
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// have we forced the safety off?
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bool safety_forced_off;
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void send_servo_out(void);
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void read_rc_input(void);
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void read_servo(void);
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void read_status(void);
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void discard_input(void);
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void event_failed(uint8_t event);
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void update_safety_options(void);
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// CONFIG page
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struct page_config config;
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// PAGE_STATUS values
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struct page_reg_status reg_status;
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uint32_t last_log_ms;
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// PAGE_RAW_RCIN values
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struct page_rc_input rc_input;
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uint32_t rc_last_input_ms;
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// MIXER values
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struct page_mixing mixing;
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// output pwm values
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struct {
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uint8_t num_channels;
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uint16_t pwm[IOMCU_MAX_CHANNELS];
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uint8_t safety_pwm_set;
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uint8_t safety_pwm_sent;
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uint16_t safety_pwm[IOMCU_MAX_CHANNELS];
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uint16_t safety_mask;
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uint16_t failsafe_pwm[IOMCU_MAX_CHANNELS];
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uint8_t failsafe_pwm_set;
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uint8_t failsafe_pwm_sent;
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} pwm_out;
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// read back pwm values
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struct {
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uint16_t pwm[IOMCU_MAX_CHANNELS];
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} pwm_in;
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// output rates
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struct {
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uint16_t freq;
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uint16_t chmask;
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uint16_t default_freq = 50;
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uint16_t sbus_rate_hz;
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} rate;
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// IMU heater duty cycle
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uint8_t heater_duty_cycle;
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uint32_t last_servo_out_us;
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bool corked;
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bool do_shutdown;
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bool done_shutdown;
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bool crc_is_ok;
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bool detected_io_reset;
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bool initialised;
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bool is_chibios_backend;
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uint32_t protocol_fail_count;
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uint32_t protocol_count;
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uint32_t total_errors;
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uint32_t num_delayed;
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uint32_t last_iocmu_timestamp_ms;
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// firmware upload
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const char *fw_name = "io_firmware.bin";
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const uint8_t *fw;
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uint32_t fw_size;
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size_t write_wait(const uint8_t *pkt, uint8_t len);
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bool upload_fw(void);
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bool recv_byte_with_timeout(uint8_t *c, uint32_t timeout_ms);
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bool recv_bytes(uint8_t *p, uint32_t count);
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void drain(void);
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bool send(uint8_t c);
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bool send(const uint8_t *p, uint32_t count);
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bool get_sync(uint32_t timeout = 40);
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bool sync();
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bool get_info(uint8_t param, uint32_t &val);
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bool erase();
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bool program(uint32_t fw_size);
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bool verify_rev2(uint32_t fw_size);
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bool verify_rev3(uint32_t fw_size_local);
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bool reboot();
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bool check_crc(void);
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void handle_repeated_failures();
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void check_iomcu_reset();
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static AP_IOMCU *singleton;
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enum {
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PROTO_NOP = 0x00,
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PROTO_OK = 0x10,
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PROTO_FAILED = 0x11,
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PROTO_INSYNC = 0x12,
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PROTO_INVALID = 0x13,
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PROTO_BAD_SILICON_REV = 0x14,
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PROTO_EOC = 0x20,
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PROTO_GET_SYNC = 0x21,
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PROTO_GET_DEVICE = 0x22,
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PROTO_CHIP_ERASE = 0x23,
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PROTO_CHIP_VERIFY = 0x24,
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PROTO_PROG_MULTI = 0x27,
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PROTO_READ_MULTI = 0x28,
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PROTO_GET_CRC = 0x29,
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PROTO_GET_OTP = 0x2a,
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PROTO_GET_SN = 0x2b,
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PROTO_GET_CHIP = 0x2c,
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PROTO_SET_DELAY = 0x2d,
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PROTO_GET_CHIP_DES = 0x2e,
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PROTO_REBOOT = 0x30,
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INFO_BL_REV = 1, /**< bootloader protocol revision */
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BL_REV = 5, /**< supported bootloader protocol */
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INFO_BOARD_ID = 2, /**< board type */
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INFO_BOARD_REV = 3, /**< board revision */
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INFO_FLASH_SIZE = 4, /**< max firmware size in bytes */
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PROG_MULTI_MAX = 248, /**< protocol max is 255, must be multiple of 4 */
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};
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};
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namespace AP {
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AP_IOMCU *iomcu(void);
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};
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#endif // HAL_WITH_IO_MCU
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