527 lines
16 KiB
C++
527 lines
16 KiB
C++
#include "servo_cluster.hpp"
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#include "pwm.hpp"
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#include <cstdio>
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namespace servo {
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ServoCluster::ServoCluster(PIO pio, uint sm, uint pin_mask, CalibrationType default_type, float freq, bool auto_phase)
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: pwms(pio, sm, pin_mask), pwm_frequency(freq) {
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create_servo_states(default_type, auto_phase);
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}
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ServoCluster::ServoCluster(PIO pio, uint sm, uint pin_base, uint pin_count, CalibrationType default_type, float freq, bool auto_phase)
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: pwms(pio, sm, pin_base, pin_count), pwm_frequency(freq) {
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create_servo_states(default_type, auto_phase);
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}
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ServoCluster::ServoCluster(PIO pio, uint sm, const uint8_t *pins, uint32_t length, CalibrationType default_type, float freq, bool auto_phase)
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: pwms(pio, sm, pins, length), pwm_frequency(freq) {
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create_servo_states(default_type, auto_phase);
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}
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ServoCluster::ServoCluster(PIO pio, uint sm, std::initializer_list<uint8_t> pins, CalibrationType default_type, float freq, bool auto_phase)
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: pwms(pio, sm, pins), pwm_frequency(freq) {
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create_servo_states(default_type, auto_phase);
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}
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ServoCluster::ServoCluster(PIO pio, uint sm, uint pin_mask, const Calibration& calibration, float freq, bool auto_phase)
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: pwms(pio, sm, pin_mask), pwm_frequency(freq) {
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create_servo_states(calibration, auto_phase);
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}
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ServoCluster::ServoCluster(PIO pio, uint sm, uint pin_base, uint pin_count, const Calibration& calibration, float freq, bool auto_phase)
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: pwms(pio, sm, pin_base, pin_count), pwm_frequency(freq) {
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create_servo_states(calibration, auto_phase);
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}
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ServoCluster::ServoCluster(PIO pio, uint sm, const uint8_t *pins, uint32_t length, const Calibration& calibration, float freq, bool auto_phase)
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: pwms(pio, sm, pins, length), pwm_frequency(freq) {
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create_servo_states(calibration, auto_phase);
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}
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ServoCluster::ServoCluster(PIO pio, uint sm, std::initializer_list<uint8_t> pins, const Calibration& calibration, float freq, bool auto_phase)
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: pwms(pio, sm, pins), pwm_frequency(freq) {
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create_servo_states(calibration, auto_phase);
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}
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ServoCluster::~ServoCluster() {
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delete[] states;
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delete[] servo_phases;
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}
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bool ServoCluster::init() {
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bool success = false;
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if(pwms.init()) {
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// Calculate a suitable pwm wrap period for this frequency
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uint32_t period; uint32_t div256;
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if(pimoroni::PWMCluster::calculate_pwm_factors(pwm_frequency, period, div256)) {
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pwm_period = period;
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// Update the pwm before setting the new wrap
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uint8_t servo_count = pwms.get_chan_count();
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for(uint8_t servo = 0; servo < servo_count; servo++) {
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pwms.set_chan_level(servo, 0, false);
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pwms.set_chan_offset(servo, (uint32_t)(servo_phases[servo] * (float)pwm_period), false);
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}
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// Set the new wrap (should be 1 less than the period to get full 0 to 100%)
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pwms.set_wrap(pwm_period, true); // NOTE Minus 1 not needed here. Maybe should change Wrap behaviour so it is needed, for consistency with hardware pwm?
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// Apply the new divider
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// This is done after loading new PWM values to avoid a lockup condition
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uint8_t div = div256 >> 8;
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uint8_t mod = div256 % 256;
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pwms.set_clkdiv_int_frac(div, mod);
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success = true;
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}
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}
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return success;
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}
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uint8_t ServoCluster::count() const {
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return pwms.get_chan_count();
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}
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uint8_t ServoCluster::pin(uint8_t servo) const {
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return pwms.get_chan_pin(servo);
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}
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void ServoCluster::enable(uint8_t servo, bool load) {
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assert(servo < pwms.get_chan_count());
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float new_pulse = states[servo].enable_with_return();
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apply_pulse(servo, new_pulse, load);
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}
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void ServoCluster::enable(const uint8_t *servos, uint8_t length, bool load) {
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assert(servos != nullptr);
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for(uint8_t i = 0; i < length; i++) {
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enable(servos[i], false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::enable(std::initializer_list<uint8_t> servos, bool load) {
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for(auto servo : servos) {
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enable(servo, false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::enable_all(bool load) {
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uint8_t servo_count = pwms.get_chan_count();
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for(uint8_t servo = 0; servo < servo_count; servo++) {
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enable(servo, false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::disable(uint8_t servo, bool load) {
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assert(servo < pwms.get_chan_count());
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float new_pulse = states[servo].disable_with_return();
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apply_pulse(servo, new_pulse, load);
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}
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void ServoCluster::disable(const uint8_t *servos, uint8_t length, bool load) {
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assert(servos != nullptr);
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for(uint8_t i = 0; i < length; i++) {
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disable(servos[i], false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::disable(std::initializer_list<uint8_t> servos, bool load) {
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for(auto servo : servos) {
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disable(servo, false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::disable_all(bool load) {
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uint8_t servo_count = pwms.get_chan_count();
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for(uint8_t servo = 0; servo < servo_count; servo++) {
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disable(servo, false);
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}
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if(load)
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pwms.load_pwm();
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}
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bool ServoCluster::is_enabled(uint8_t servo) const {
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assert(servo < pwms.get_chan_count());
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return states[servo].is_enabled();
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}
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float ServoCluster::pulse(uint8_t servo) const {
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assert(servo < pwms.get_chan_count());
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return states[servo].get_pulse();
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}
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void ServoCluster::pulse(uint8_t servo, float pulse, bool load) {
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assert(servo < pwms.get_chan_count());
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float new_pulse = states[servo].set_pulse_with_return(pulse);
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apply_pulse(servo, new_pulse, load);
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}
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void ServoCluster::pulse(const uint8_t *servos, uint8_t length, float pulse, bool load) {
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assert(servos != nullptr);
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for(uint8_t i = 0; i < length; i++) {
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this->pulse(servos[i], pulse, false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::pulse(std::initializer_list<uint8_t> servos, float pulse, bool load) {
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for(auto servo : servos) {
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this->pulse(servo, pulse, false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::all_to_pulse(float pulse, bool load) {
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uint8_t servo_count = pwms.get_chan_count();
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for(uint8_t servo = 0; servo < servo_count; servo++) {
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this->pulse(servo, pulse, false);
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}
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if(load)
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pwms.load_pwm();
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}
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float ServoCluster::value(uint8_t servo) const {
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assert(servo < pwms.get_chan_count());
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return states[servo].get_value();
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}
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void ServoCluster::value(uint8_t servo, float value, bool load) {
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assert(servo < pwms.get_chan_count());
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float new_pulse = states[servo].set_value_with_return(value);
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apply_pulse(servo, new_pulse, load);
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}
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void ServoCluster::value(const uint8_t *servos, uint8_t length, float value, bool load) {
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assert(servos != nullptr);
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for(uint8_t i = 0; i < length; i++) {
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this->value(servos[i], value, false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::value(std::initializer_list<uint8_t> servos, float value, bool load) {
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for(auto servo : servos) {
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this->value(servo, value, false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::all_to_value(float value, bool load) {
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uint8_t servo_count = pwms.get_chan_count();
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for(uint8_t servo = 0; servo < servo_count; servo++) {
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this->value(servo, value, false);
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}
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if(load)
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pwms.load_pwm();
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}
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float ServoCluster::phase(uint8_t servo) const {
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assert(servo < pwms.get_chan_count());
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return servo_phases[servo];
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}
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void ServoCluster::phase(uint8_t servo, float phase, bool load) {
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assert(servo < pwms.get_chan_count());
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servo_phases[servo] = MIN(MAX(phase, 0.0f), 1.0f);
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pwms.set_chan_offset(servo, (uint32_t)(servo_phases[servo] * (float)pwms.get_wrap()), load);
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}
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void ServoCluster::phase(const uint8_t *servos, uint8_t length, float phase, bool load) {
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assert(servos != nullptr);
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for(uint8_t i = 0; i < length; i++) {
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this->phase(servos[i], phase, false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::phase(std::initializer_list<uint8_t> servos, float phase, bool load) {
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for(auto servo : servos) {
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this->phase(servo, phase, false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::all_to_phase(float phase, bool load) {
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uint8_t servo_count = pwms.get_chan_count();
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for(uint8_t servo = 0; servo < servo_count; servo++) {
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this->phase(servo, phase, false);
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}
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if(load)
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pwms.load_pwm();
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}
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float ServoCluster::frequency() const {
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return pwm_frequency;
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}
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bool ServoCluster::frequency(float freq) {
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bool success = false;
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if((freq >= ServoState::MIN_FREQUENCY) && (freq <= ServoState::MAX_FREQUENCY)) {
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// Calculate a suitable pwm wrap period for this frequency
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uint32_t period; uint32_t div256;
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if(pimoroni::PWMCluster::calculate_pwm_factors(freq, period, div256)) {
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pwm_period = period;
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pwm_frequency = freq;
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// Update the pwm before setting the new wrap
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uint8_t servo_count = pwms.get_chan_count();
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for(uint servo = 0; servo < servo_count; servo++) {
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if(states[servo].is_enabled()) {
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apply_pulse(servo, states[servo].get_pulse(), false);
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}
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pwms.set_chan_offset(servo, (uint32_t)(servo_phases[servo] * (float)pwm_period), false);
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}
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// Set the new wrap (should be 1 less than the period to get full 0 to 100%)
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pwms.set_wrap(pwm_period, true);
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// Apply the new divider
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uint16_t div = div256 >> 8;
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uint8_t mod = div256 % 256;
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pwms.set_clkdiv_int_frac(div, mod);
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success = true;
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}
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}
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return success;
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}
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float ServoCluster::min_value(uint8_t servo) const {
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assert(servo < pwms.get_chan_count());
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return states[servo].get_min_value();
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}
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float ServoCluster::mid_value(uint8_t servo) const {
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assert(servo < pwms.get_chan_count());
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return states[servo].get_mid_value();
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}
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float ServoCluster::max_value(uint8_t servo) const {
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assert(servo < pwms.get_chan_count());
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return states[servo].get_max_value();
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}
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void ServoCluster::to_min(uint8_t servo, bool load) {
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assert(servo < pwms.get_chan_count());
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float new_pulse = states[servo].to_min_with_return();
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apply_pulse(servo, new_pulse, load);
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}
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void ServoCluster::to_min(const uint8_t *servos, uint8_t length, bool load) {
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assert(servos != nullptr);
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for(uint8_t i = 0; i < length; i++) {
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to_min(servos[i], false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::to_min(std::initializer_list<uint8_t> servos, bool load) {
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for(auto servo : servos) {
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to_min(servo, false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::all_to_min(bool load) {
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uint8_t servo_count = pwms.get_chan_count();
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for(uint8_t servo = 0; servo < servo_count; servo++) {
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to_min(servo, false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::to_mid(uint8_t servo, bool load) {
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assert(servo < pwms.get_chan_count());
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float new_pulse = states[servo].to_mid_with_return();
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apply_pulse(servo, new_pulse, load);
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}
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void ServoCluster::to_mid(const uint8_t *servos, uint8_t length, bool load) {
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assert(servos != nullptr);
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for(uint8_t i = 0; i < length; i++) {
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to_mid(servos[i], false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::to_mid(std::initializer_list<uint8_t> servos, bool load) {
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for(auto servo : servos) {
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to_mid(servo, false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::all_to_mid(bool load) {
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uint8_t servo_count = pwms.get_chan_count();
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for(uint8_t servo = 0; servo < servo_count; servo++) {
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to_mid(servo, false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::to_max(uint8_t servo, bool load) {
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assert(servo < pwms.get_chan_count());
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float new_pulse = states[servo].to_max_with_return();
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apply_pulse(servo, new_pulse, load);
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}
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void ServoCluster::to_max(const uint8_t *servos, uint8_t length, bool load) {
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assert(servos != nullptr);
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for(uint8_t i = 0; i < length; i++) {
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to_max(servos[i], false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::to_max(std::initializer_list<uint8_t> servos, bool load) {
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for(auto servo : servos) {
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to_max(servo, false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::all_to_max(bool load) {
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uint8_t servo_count = pwms.get_chan_count();
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for(uint8_t servo = 0; servo < servo_count; servo++) {
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to_max(servo, false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::to_percent(uint8_t servo, float in, float in_min, float in_max, bool load) {
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assert(servo < pwms.get_chan_count());
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float new_pulse = states[servo].to_percent_with_return(in, in_min, in_max);
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apply_pulse(servo, new_pulse, load);
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}
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void ServoCluster::to_percent(const uint8_t *servos, uint8_t length, float in, float in_min, float in_max, bool load) {
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assert(servos != nullptr);
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for(uint8_t i = 0; i < length; i++) {
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to_percent(servos[i], in, in_min, in_max, false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::to_percent(std::initializer_list<uint8_t> servos, float in, float in_min, float in_max, bool load) {
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for(auto servo : servos) {
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to_percent(servo, in, in_min, in_max, false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::all_to_percent(float in, float in_min, float in_max, bool load) {
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uint8_t servo_count = pwms.get_chan_count();
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for(uint8_t servo = 0; servo < servo_count; servo++) {
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to_percent(servo, in, in_min, in_max, false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::to_percent(uint8_t servo, float in, float in_min, float in_max, float value_min, float value_max, bool load) {
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assert(servo < pwms.get_chan_count());
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float new_pulse = states[servo].to_percent_with_return(in, in_min, in_max, value_min, value_max);
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apply_pulse(servo, new_pulse, load);
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}
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void ServoCluster::to_percent(const uint8_t *servos, uint8_t length, float in, float in_min, float in_max, float value_min, float value_max, bool load) {
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assert(servos != nullptr);
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for(uint8_t i = 0; i < length; i++) {
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to_percent(servos[i], in, in_min, in_max, value_min, value_max, false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::to_percent(std::initializer_list<uint8_t> servos, float in, float in_min, float in_max, float value_min, float value_max, bool load) {
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for(auto servo : servos) {
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to_percent(servo, in, in_min, in_max, value_min, value_max, false);
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}
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if(load)
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pwms.load_pwm();
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}
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void ServoCluster::all_to_percent(float in, float in_min, float in_max, float value_min, float value_max, bool load) {
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uint8_t servo_count = pwms.get_chan_count();
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for(uint8_t servo = 0; servo < servo_count; servo++) {
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to_percent(servo, in, in_min, in_max, value_min, value_max, false);
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}
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if(load)
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pwms.load_pwm();
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}
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Calibration& ServoCluster::calibration(uint8_t servo) {
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assert(servo < pwms.get_chan_count());
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return states[servo].calibration();
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}
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const Calibration& ServoCluster::calibration(uint8_t servo) const {
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assert(servo < pwms.get_chan_count());
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return states[servo].calibration();
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}
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void ServoCluster::load() {
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pwms.load_pwm();
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}
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void ServoCluster::apply_pulse(uint8_t servo, float pulse, bool load) {
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pwms.set_chan_level(servo, ServoState::pulse_to_level(pulse, pwm_period, pwm_frequency), load);
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}
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void ServoCluster::create_servo_states(CalibrationType default_type, bool auto_phase) {
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uint8_t servo_count = pwms.get_chan_count();
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if(servo_count > 0) {
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states = new ServoState[servo_count];
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servo_phases = new float[servo_count];
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for(uint servo = 0; servo < servo_count; servo++) {
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states[servo] = ServoState(default_type);
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servo_phases[servo] = (auto_phase) ? (float)servo / (float)servo_count : 0.0f;
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}
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}
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}
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void ServoCluster::create_servo_states(const Calibration& calibration, bool auto_phase) {
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uint8_t servo_count = pwms.get_chan_count();
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if(servo_count > 0) {
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states = new ServoState[servo_count];
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servo_phases = new float[servo_count];
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for(uint servo = 0; servo < servo_count; servo++) {
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states[servo] = ServoState(calibration);
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servo_phases[servo] = (auto_phase) ? (float)servo / (float)servo_count : 0.0f;
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}
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}
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}
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}; |