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atbetaflight
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Split mixer and servo code

This commit is contained in:
Martin Budden 2016-10-14 10:47:04 +01:00
parent 726a8d29e2
commit 31828873fa
12 changed files with 654 additions and 598 deletions
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1
Makefile
View File

@ -508,6 +508,7 @@ COMMON_SRC = \
flight/imu.c \
flight/mixer.c \
flight/pid.c \
flight/servos.c \
io/beeper.c \
io/serial.c \
io/serial_4way.c \

4
src/main/config/config_master.h
View File

@ -29,6 +29,7 @@
#include "flight/failsafe.h"
#include "flight/mixer.h"
#include "flight/servos.h"
#include "flight/imu.h"
#include "flight/navigation.h"
@ -65,10 +66,11 @@ typedef struct master_s {
// motor/esc/servo related stuff
motorMixer_t customMotorMixer[MAX_SUPPORTED_MOTORS];
motorConfig_t motorConfig;
servoConfig_t servoConfig;
flight3DConfig_t flight3DConfig;
#ifdef USE_SERVOS
servoConfig_t servoConfig;
servoMixerConfig_t servoMixerConfig;
servoMixer_t customServoMixer[MAX_SERVO_RULES];
// Servo-related stuff
servoParam_t servoConf[MAX_SUPPORTED_SERVOS]; // servo configuration

21
src/main/fc/config.c
View File

@ -72,6 +72,7 @@
#include "telemetry/telemetry.h"
#include "flight/mixer.h"
#include "flight/servos.h"
#include "flight/pid.h"
#include "flight/imu.h"
#include "flight/failsafe.h"
@ -407,13 +408,17 @@ void resetRcControlsConfig(rcControlsConfig_t *rcControlsConfig)
void resetMixerConfig(mixerConfig_t *mixerConfig)
{
mixerConfig->yaw_motor_direction = 1;
#ifdef USE_SERVOS
mixerConfig->tri_unarmed_servo = 1;
mixerConfig->servo_lowpass_freq = 400;
mixerConfig->servo_lowpass_enable = 0;
#endif
}
#ifdef USE_SERVOS
void resetServoMixerConfig(servoMixerConfig_t *servoMixerConfig)
{
servoMixerConfig->tri_unarmed_servo = 1;
servoMixerConfig->servo_lowpass_freq = 400;
servoMixerConfig->servo_lowpass_enable = 0;
}
#endif
uint8_t getCurrentProfile(void)
{
return masterConfig.current_profile_index;
@ -573,13 +578,13 @@ void createDefaultConfig(master_t *config)
config->auto_disarm_delay = 5;
config->small_angle = 25;
resetMixerConfig(&config->mixerConfig);
config->airplaneConfig.fixedwing_althold_dir = 1;
// Motor/ESC/Servo
resetMixerConfig(&config->mixerConfig);
resetMotorConfig(&config->motorConfig);
#ifdef USE_SERVOS
resetServoMixerConfig(&config->servoMixerConfig);
resetServoConfig(&config->servoConfig);
#endif
resetFlight3DConfig(&config->flight3DConfig);
@ -774,7 +779,7 @@ void activateConfig(void)
);
#ifdef USE_SERVOS
servoUseConfigs(masterConfig.servoConf, &masterConfig.gimbalConfig);
servoUseConfigs(&masterConfig.servoMixerConfig, masterConfig.servoConf, &masterConfig.gimbalConfig);
#endif
imuRuntimeConfig.dcm_kp = masterConfig.dcm_kp / 10000.0f;

5
src/main/fc/mw.c
View File

@ -65,6 +65,7 @@
#include "scheduler/scheduler.h"
#include "flight/mixer.h"
#include "flight/servos.h"
#include "flight/pid.h"
#include "flight/failsafe.h"
#include "flight/gtune.h"
@ -740,7 +741,7 @@ void subTaskMainSubprocesses(void)
if (isUsingSticksForArming() && rcData[THROTTLE] <= masterConfig.rxConfig.mincheck
#ifndef USE_QUAD_MIXER_ONLY
#ifdef USE_SERVOS
&& !((masterConfig.mixerMode == MIXER_TRI || masterConfig.mixerMode == MIXER_CUSTOM_TRI) && masterConfig.mixerConfig.tri_unarmed_servo)
&& !((masterConfig.mixerMode == MIXER_TRI || masterConfig.mixerMode == MIXER_CUSTOM_TRI) && masterConfig.servoMixerConfig.tri_unarmed_servo)
#endif
&& masterConfig.mixerMode != MIXER_AIRPLANE
&& masterConfig.mixerMode != MIXER_FLYING_WING
@ -794,6 +795,8 @@ void subTaskMotorUpdate(void)
mixTable(&currentProfile->pidProfile);
#ifdef USE_SERVOS
// motor outputs are used as sources for servo mixing, so motors must be calculated using mixTable() before servos.
servoTable();
filterServos();
writeServos();
#endif

471
src/main/flight/mixer.c
View File

@ -17,14 +17,12 @@
#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "platform.h"
#include "build/build_config.h"
#include "build/debug.h"
#include "common/axis.h"
#include "common/maths.h"
@ -32,18 +30,11 @@
#include "drivers/system.h"
#include "drivers/pwm_output.h"
#include "drivers/sensor.h"
#include "drivers/accgyro.h"
#include "drivers/system.h"
#include "io/motors.h"
#include "rx/rx.h"
#include "io/gimbal.h"
#include "io/motors.h"
#include "io/servos.h"
#include "sensors/sensors.h"
#include "sensors/acceleration.h"
#include "sensors/battery.h"
#include "flight/mixer.h"
@ -66,20 +57,12 @@ static mixerConfig_t *mixerConfig;
static flight3DConfig_t *flight3DConfig;
static motorConfig_t *motorConfig;
static airplaneConfig_t *airplaneConfig;
static rxConfig_t *rxConfig;
rxConfig_t *rxConfig;
static bool syncMotorOutputWithPidLoop = false;
static mixerMode_e currentMixerMode;
mixerMode_e currentMixerMode;
static motorMixer_t currentMixer[MAX_SUPPORTED_MOTORS];
#ifdef USE_SERVOS
static uint8_t servoRuleCount = 0;
static servoMixer_t currentServoMixer[MAX_SERVO_RULES];
static gimbalConfig_t *gimbalConfig;
int16_t servo[MAX_SUPPORTED_SERVOS];
static int useServo;
static servoParam_t *servoConf;
#endif
static const motorMixer_t mixerQuadX[] = {
{ 1.0f, -1.0f, 1.0f, -1.0f }, // REAR_R
@ -245,92 +228,6 @@ const mixer_t mixers[] = {
};
#endif
#ifdef USE_SERVOS
#define COUNT_SERVO_RULES(rules) (sizeof(rules) / sizeof(servoMixer_t))
// mixer rule format servo, input, rate, speed, min, max, box
static const servoMixer_t servoMixerAirplane[] = {
{ SERVO_FLAPPERON_1, INPUT_STABILIZED_ROLL, 100, 0, 0, 100, 0 },
{ SERVO_FLAPPERON_2, INPUT_STABILIZED_ROLL, 100, 0, 0, 100, 0 },
{ SERVO_RUDDER, INPUT_STABILIZED_YAW, 100, 0, 0, 100, 0 },
{ SERVO_ELEVATOR, INPUT_STABILIZED_PITCH, 100, 0, 0, 100, 0 },
{ SERVO_THROTTLE, INPUT_STABILIZED_THROTTLE, 100, 0, 0, 100, 0 },
};
static const servoMixer_t servoMixerFlyingWing[] = {
{ SERVO_FLAPPERON_1, INPUT_STABILIZED_ROLL, 100, 0, 0, 100, 0 },
{ SERVO_FLAPPERON_1, INPUT_STABILIZED_PITCH, 100, 0, 0, 100, 0 },
{ SERVO_FLAPPERON_2, INPUT_STABILIZED_ROLL, -100, 0, 0, 100, 0 },
{ SERVO_FLAPPERON_2, INPUT_STABILIZED_PITCH, 100, 0, 0, 100, 0 },
{ SERVO_THROTTLE, INPUT_STABILIZED_THROTTLE, 100, 0, 0, 100, 0 },
};
static const servoMixer_t servoMixerBI[] = {
{ SERVO_BICOPTER_LEFT, INPUT_STABILIZED_YAW, 100, 0, 0, 100, 0 },
{ SERVO_BICOPTER_LEFT, INPUT_STABILIZED_PITCH, 100, 0, 0, 100, 0 },
{ SERVO_BICOPTER_RIGHT, INPUT_STABILIZED_YAW, 100, 0, 0, 100, 0 },
{ SERVO_BICOPTER_RIGHT, INPUT_STABILIZED_PITCH, 100, 0, 0, 100, 0 },
};
static const servoMixer_t servoMixerTri[] = {
{ SERVO_RUDDER, INPUT_STABILIZED_YAW, 100, 0, 0, 100, 0 },
};
static const servoMixer_t servoMixerDual[] = {
{ SERVO_DUALCOPTER_LEFT, INPUT_STABILIZED_PITCH, 100, 0, 0, 100, 0 },
{ SERVO_DUALCOPTER_RIGHT, INPUT_STABILIZED_ROLL, 100, 0, 0, 100, 0 },
};
static const servoMixer_t servoMixerSingle[] = {
{ SERVO_SINGLECOPTER_1, INPUT_STABILIZED_YAW, 100, 0, 0, 100, 0 },
{ SERVO_SINGLECOPTER_1, INPUT_STABILIZED_PITCH, 100, 0, 0, 100, 0 },
{ SERVO_SINGLECOPTER_2, INPUT_STABILIZED_YAW, 100, 0, 0, 100, 0 },
{ SERVO_SINGLECOPTER_2, INPUT_STABILIZED_PITCH, 100, 0, 0, 100, 0 },
{ SERVO_SINGLECOPTER_3, INPUT_STABILIZED_YAW, 100, 0, 0, 100, 0 },
{ SERVO_SINGLECOPTER_3, INPUT_STABILIZED_ROLL, 100, 0, 0, 100, 0 },
{ SERVO_SINGLECOPTER_4, INPUT_STABILIZED_YAW, 100, 0, 0, 100, 0 },
{ SERVO_SINGLECOPTER_4, INPUT_STABILIZED_ROLL, 100, 0, 0, 100, 0 },
};
static const servoMixer_t servoMixerGimbal[] = {
{ SERVO_GIMBAL_PITCH, INPUT_GIMBAL_PITCH, 125, 0, 0, 100, 0 },
{ SERVO_GIMBAL_ROLL, INPUT_GIMBAL_ROLL, 125, 0, 0, 100, 0 },
};
const mixerRules_t servoMixers[] = {
{ 0, NULL }, // entry 0
{ COUNT_SERVO_RULES(servoMixerTri), servoMixerTri }, // MULTITYPE_TRI
{ 0, NULL }, // MULTITYPE_QUADP
{ 0, NULL }, // MULTITYPE_QUADX
{ COUNT_SERVO_RULES(servoMixerBI), servoMixerBI }, // MULTITYPE_BI
{ COUNT_SERVO_RULES(servoMixerGimbal), servoMixerGimbal }, // * MULTITYPE_GIMBAL
{ 0, NULL }, // MULTITYPE_Y6
{ 0, NULL }, // MULTITYPE_HEX6
{ COUNT_SERVO_RULES(servoMixerFlyingWing), servoMixerFlyingWing },// * MULTITYPE_FLYING_WING
{ 0, NULL }, // MULTITYPE_Y4
{ 0, NULL }, // MULTITYPE_HEX6X
{ 0, NULL }, // MULTITYPE_OCTOX8
{ 0, NULL }, // MULTITYPE_OCTOFLATP
{ 0, NULL }, // MULTITYPE_OCTOFLATX
{ COUNT_SERVO_RULES(servoMixerAirplane), servoMixerAirplane }, // * MULTITYPE_AIRPLANE
{ 0, NULL }, // * MULTITYPE_HELI_120_CCPM
{ 0, NULL }, // * MULTITYPE_HELI_90_DEG
{ 0, NULL }, // MULTITYPE_VTAIL4
{ 0, NULL }, // MULTITYPE_HEX6H
{ 0, NULL }, // * MULTITYPE_PPM_TO_SERVO
{ COUNT_SERVO_RULES(servoMixerDual), servoMixerDual }, // MULTITYPE_DUALCOPTER
{ COUNT_SERVO_RULES(servoMixerSingle), servoMixerSingle }, // MULTITYPE_SINGLECOPTER
{ 0, NULL }, // MULTITYPE_ATAIL4
{ 0, NULL }, // MULTITYPE_CUSTOM
{ 0, NULL }, // MULTITYPE_CUSTOM_PLANE
{ 0, NULL }, // MULTITYPE_CUSTOM_TRI
{ 0, NULL },
};
static servoMixer_t *customServoMixers;
#endif
static motorMixer_t *customMixers;
static uint16_t disarmMotorOutput, minMotorOutputNormal, maxMotorOutputNormal, deadbandMotor3dHigh, deadbandMotor3dLow;
@ -370,51 +267,6 @@ void mixerUseConfigs(
initEscEndpoints();
}
#ifdef USE_SERVOS
void servoUseConfigs(servoParam_t *servoConfToUse, gimbalConfig_t *gimbalConfigToUse)
{
servoConf = servoConfToUse;
gimbalConfig = gimbalConfigToUse;
}
int16_t determineServoMiddleOrForwardFromChannel(servoIndex_e servoIndex)
{
uint8_t channelToForwardFrom = servoConf[servoIndex].forwardFromChannel;
if (channelToForwardFrom != CHANNEL_FORWARDING_DISABLED && channelToForwardFrom < rxRuntimeConfig.channelCount) {
return rcData[channelToForwardFrom];
}
return servoConf[servoIndex].middle;
}
int servoDirection(int servoIndex, int inputSource)
{
// determine the direction (reversed or not) from the direction bitfield of the servo
if (servoConf[servoIndex].reversedSources & (1 << inputSource))
return -1;
else
return 1;
}
void servoMixerInit(servoMixer_t *initialCustomServoMixers)
{
customServoMixers = initialCustomServoMixers;
// enable servos for mixes that require them. note, this shifts motor counts.
useServo = mixers[currentMixerMode].useServo;
// if we want camstab/trig, that also enables servos, even if mixer doesn't
if (feature(FEATURE_SERVO_TILT))
useServo = 1;
// give all servos a default command
for (uint8_t i = 0; i < MAX_SUPPORTED_SERVOS; i++) {
servo[i] = DEFAULT_SERVO_MIDDLE;
}
}
#endif
void mixerInit(mixerMode_e mixerMode, motorMixer_t *initialCustomMixers)
{
currentMixerMode = mixerMode;
@ -424,23 +276,6 @@ void mixerInit(mixerMode_e mixerMode, motorMixer_t *initialCustomMixers)
#ifndef USE_QUAD_MIXER_ONLY
void loadCustomServoMixer(void)
{
// reset settings
servoRuleCount = 0;
memset(currentServoMixer, 0, sizeof(currentServoMixer));
// load custom mixer into currentServoMixer
for (uint8_t i = 0; i < MAX_SERVO_RULES; i++) {
// check if done
if (customServoMixers[i].rate == 0)
break;
currentServoMixer[i] = customServoMixers[i];
servoRuleCount++;
}
}
void mixerConfigureOutput(void)
{
int i;
@ -467,14 +302,6 @@ void mixerConfigureOutput(void)
}
}
if (useServo) {
servoRuleCount = servoMixers[currentMixerMode].servoRuleCount;
if (servoMixers[currentMixerMode].rule) {
for (i = 0; i < servoRuleCount; i++)
currentServoMixer[i] = servoMixers[currentMixerMode].rule[i];
}
}
// in 3D mode, mixer gain has to be halved
if (feature(FEATURE_3D)) {
if (motorCount > 1) {
@ -486,42 +313,9 @@ void mixerConfigureOutput(void)
}
}
// set flag that we're on something with wings
if (currentMixerMode == MIXER_FLYING_WING ||
currentMixerMode == MIXER_AIRPLANE ||
currentMixerMode == MIXER_CUSTOM_AIRPLANE
) {
ENABLE_STATE(FIXED_WING);
if (currentMixerMode == MIXER_CUSTOM_AIRPLANE) {
loadCustomServoMixer();
}
} else {
DISABLE_STATE(FIXED_WING);
if (currentMixerMode == MIXER_CUSTOM_TRI) {
loadCustomServoMixer();
}
}
mixerResetDisarmedMotors();
}
void servoMixerLoadMix(int index, servoMixer_t *customServoMixers)
{
int i;
// we're 1-based
index++;
// clear existing
for (i = 0; i < MAX_SERVO_RULES; i++)
customServoMixers[i].targetChannel = customServoMixers[i].inputSource = customServoMixers[i].rate = customServoMixers[i].box = 0;
for (i = 0; i < servoMixers[index].servoRuleCount; i++)
customServoMixers[i] = servoMixers[index].rule[i];
}
void mixerLoadMix(int index, motorMixer_t *customMixers)
{
int i;
@ -561,90 +355,6 @@ void mixerResetDisarmedMotors(void)
motor_disarmed[i] = feature(FEATURE_3D) ? flight3DConfig->neutral3d : motorConfig->mincommand;
}
#ifdef USE_SERVOS
STATIC_UNIT_TESTED void forwardAuxChannelsToServos(uint8_t firstServoIndex)
{
// start forwarding from this channel
uint8_t channelOffset = AUX1;
uint8_t servoOffset;
for (servoOffset = 0; servoOffset < MAX_AUX_CHANNEL_COUNT && channelOffset < MAX_SUPPORTED_RC_CHANNEL_COUNT; servoOffset++) {
pwmWriteServo(firstServoIndex + servoOffset, rcData[channelOffset++]);
}
}
static void updateGimbalServos(uint8_t firstServoIndex)
{
pwmWriteServo(firstServoIndex + 0, servo[SERVO_GIMBAL_PITCH]);
pwmWriteServo(firstServoIndex + 1, servo[SERVO_GIMBAL_ROLL]);
}
void writeServos(void)
{
uint8_t servoIndex = 0;
switch (currentMixerMode) {
case MIXER_BICOPTER:
pwmWriteServo(servoIndex++, servo[SERVO_BICOPTER_LEFT]);
pwmWriteServo(servoIndex++, servo[SERVO_BICOPTER_RIGHT]);
break;
case MIXER_TRI:
case MIXER_CUSTOM_TRI:
if (mixerConfig->tri_unarmed_servo) {
// if unarmed flag set, we always move servo
pwmWriteServo(servoIndex++, servo[SERVO_RUDDER]);
} else {
// otherwise, only move servo when copter is armed
if (ARMING_FLAG(ARMED))
pwmWriteServo(servoIndex++, servo[SERVO_RUDDER]);
else
pwmWriteServo(servoIndex++, 0); // kill servo signal completely.
}
break;
case MIXER_FLYING_WING:
pwmWriteServo(servoIndex++, servo[SERVO_FLAPPERON_1]);
pwmWriteServo(servoIndex++, servo[SERVO_FLAPPERON_2]);
break;
case MIXER_DUALCOPTER:
pwmWriteServo(servoIndex++, servo[SERVO_DUALCOPTER_LEFT]);
pwmWriteServo(servoIndex++, servo[SERVO_DUALCOPTER_RIGHT]);
break;
case MIXER_CUSTOM_AIRPLANE:
case MIXER_AIRPLANE:
for (int i = SERVO_PLANE_INDEX_MIN; i <= SERVO_PLANE_INDEX_MAX; i++) {
pwmWriteServo(servoIndex++, servo[i]);
}
break;
case MIXER_SINGLECOPTER:
for (int i = SERVO_SINGLECOPTER_INDEX_MIN; i <= SERVO_SINGLECOPTER_INDEX_MAX; i++) {
pwmWriteServo(servoIndex++, servo[i]);
}
break;
default:
break;
}
// Two servos for SERVO_TILT, if enabled
if (feature(FEATURE_SERVO_TILT) || currentMixerMode == MIXER_GIMBAL) {
updateGimbalServos(servoIndex);
servoIndex += 2;
}
// forward AUX to remaining servo outputs (not constrained)
if (feature(FEATURE_CHANNEL_FORWARDING)) {
forwardAuxChannelsToServos(servoIndex);
servoIndex += MAX_AUX_CHANNEL_COUNT;
}
}
#endif
void writeMotors(void)
{
for (uint8_t i = 0; i < motorCount; i++) {
@ -679,91 +389,10 @@ void stopPwmAllMotors(void)
delayMicroseconds(1500);
}
#ifndef USE_QUAD_MIXER_ONLY
STATIC_UNIT_TESTED void servoMixer(void)
{
int16_t input[INPUT_SOURCE_COUNT]; // Range [-500:+500]
static int16_t currentOutput[MAX_SERVO_RULES];
uint8_t i;
if (FLIGHT_MODE(PASSTHRU_MODE)) {
// Direct passthru from RX
input[INPUT_STABILIZED_ROLL] = rcCommand[ROLL];
input[INPUT_STABILIZED_PITCH] = rcCommand[PITCH];
input[INPUT_STABILIZED_YAW] = rcCommand[YAW];
} else {
// Assisted modes (gyro only or gyro+acc according to AUX configuration in Gui
input[INPUT_STABILIZED_ROLL] = axisPIDf[ROLL];
input[INPUT_STABILIZED_PITCH] = axisPIDf[PITCH];
input[INPUT_STABILIZED_YAW] = axisPIDf[YAW];
// Reverse yaw servo when inverted in 3D mode
if (feature(FEATURE_3D) && (rcData[THROTTLE] < rxConfig->midrc)) {
input[INPUT_STABILIZED_YAW] *= -1;
}
}
input[INPUT_GIMBAL_PITCH] = scaleRange(attitude.values.pitch, -1800, 1800, -500, +500);
input[INPUT_GIMBAL_ROLL] = scaleRange(attitude.values.roll, -1800, 1800, -500, +500);
input[INPUT_STABILIZED_THROTTLE] = motor[0] - 1000 - 500; // Since it derives from rcCommand or mincommand and must be [-500:+500]
// center the RC input value around the RC middle value
// by subtracting the RC middle value from the RC input value, we get:
// data - middle = input
// 2000 - 1500 = +500
// 1500 - 1500 = 0
// 1000 - 1500 = -500
input[INPUT_RC_ROLL] = rcData[ROLL] - rxConfig->midrc;
input[INPUT_RC_PITCH] = rcData[PITCH] - rxConfig->midrc;
input[INPUT_RC_YAW] = rcData[YAW] - rxConfig->midrc;
input[INPUT_RC_THROTTLE] = rcData[THROTTLE] - rxConfig->midrc;
input[INPUT_RC_AUX1] = rcData[AUX1] - rxConfig->midrc;
input[INPUT_RC_AUX2] = rcData[AUX2] - rxConfig->midrc;
input[INPUT_RC_AUX3] = rcData[AUX3] - rxConfig->midrc;
input[INPUT_RC_AUX4] = rcData[AUX4] - rxConfig->midrc;
for (i = 0; i < MAX_SUPPORTED_SERVOS; i++)
servo[i] = 0;
// mix servos according to rules
for (i = 0; i < servoRuleCount; i++) {
// consider rule if no box assigned or box is active
if (currentServoMixer[i].box == 0 || IS_RC_MODE_ACTIVE(BOXSERVO1 + currentServoMixer[i].box - 1)) {
uint8_t target = currentServoMixer[i].targetChannel;
uint8_t from = currentServoMixer[i].inputSource;
uint16_t servo_width = servoConf[target].max - servoConf[target].min;
int16_t min = currentServoMixer[i].min * servo_width / 100 - servo_width / 2;
int16_t max = currentServoMixer[i].max * servo_width / 100 - servo_width / 2;
if (currentServoMixer[i].speed == 0)
currentOutput[i] = input[from];
else {
if (currentOutput[i] < input[from])
currentOutput[i] = constrain(currentOutput[i] + currentServoMixer[i].speed, currentOutput[i], input[from]);
else if (currentOutput[i] > input[from])
currentOutput[i] = constrain(currentOutput[i] - currentServoMixer[i].speed, input[from], currentOutput[i]);
}
servo[target] += servoDirection(target, from) * constrain(((int32_t)currentOutput[i] * currentServoMixer[i].rate) / 100, min, max);
} else {
currentOutput[i] = 0;
}
}
for (i = 0; i < MAX_SUPPORTED_SERVOS; i++) {
servo[i] = ((int32_t)servoConf[i].rate * servo[i]) / 100L;
servo[i] += determineServoMiddleOrForwardFromChannel(i);
}
}
#endif
void mixTable(void *pidProfilePtr)
void mixTable(pidProfile_t *pidProfile)
{
uint32_t i = 0;
float vbatCompensationFactor = 1;
pidProfile_t *pidProfile = (pidProfile_t *) pidProfilePtr;
// Scale roll/pitch/yaw uniformly to fit within throttle range
// Initial mixer concept by bdoiron74 reused and optimized for Air Mode
@ -885,94 +514,4 @@ void mixTable(void *pidProfilePtr)
}
}
}
// motor outputs are used as sources for servo mixing, so motors must be calculated before servos.
#if !defined(USE_QUAD_MIXER_ONLY) || defined(USE_SERVOS)
// airplane / servo mixes
switch (currentMixerMode) {
case MIXER_CUSTOM_AIRPLANE:
case MIXER_FLYING_WING:
case MIXER_AIRPLANE:
case MIXER_BICOPTER:
case MIXER_CUSTOM_TRI:
case MIXER_TRI:
case MIXER_DUALCOPTER:
case MIXER_SINGLECOPTER:
case MIXER_GIMBAL:
servoMixer();
break;
/*
case MIXER_GIMBAL:
servo[SERVO_GIMBAL_PITCH] = (((int32_t)servoConf[SERVO_GIMBAL_PITCH].rate * attitude.values.pitch) / 50) + determineServoMiddleOrForwardFromChannel(SERVO_GIMBAL_PITCH);
servo[SERVO_GIMBAL_ROLL] = (((int32_t)servoConf[SERVO_GIMBAL_ROLL].rate * attitude.values.roll) / 50) + determineServoMiddleOrForwardFromChannel(SERVO_GIMBAL_ROLL);
break;
*/
default:
break;
}
// camera stabilization
if (feature(FEATURE_SERVO_TILT)) {
// center at fixed position, or vary either pitch or roll by RC channel
servo[SERVO_GIMBAL_PITCH] = determineServoMiddleOrForwardFromChannel(SERVO_GIMBAL_PITCH);
servo[SERVO_GIMBAL_ROLL] = determineServoMiddleOrForwardFromChannel(SERVO_GIMBAL_ROLL);
if (IS_RC_MODE_ACTIVE(BOXCAMSTAB)) {
if (gimbalConfig->mode == GIMBAL_MODE_MIXTILT) {
servo[SERVO_GIMBAL_PITCH] -= (-(int32_t)servoConf[SERVO_GIMBAL_PITCH].rate) * attitude.values.pitch / 50 - (int32_t)servoConf[SERVO_GIMBAL_ROLL].rate * attitude.values.roll / 50;
servo[SERVO_GIMBAL_ROLL] += (-(int32_t)servoConf[SERVO_GIMBAL_PITCH].rate) * attitude.values.pitch / 50 + (int32_t)servoConf[SERVO_GIMBAL_ROLL].rate * attitude.values.roll / 50;
} else {
servo[SERVO_GIMBAL_PITCH] += (int32_t)servoConf[SERVO_GIMBAL_PITCH].rate * attitude.values.pitch / 50;
servo[SERVO_GIMBAL_ROLL] += (int32_t)servoConf[SERVO_GIMBAL_ROLL].rate * attitude.values.roll / 50;
}
}
}
// constrain servos
for (i = 0; i < MAX_SUPPORTED_SERVOS; i++) {
servo[i] = constrain(servo[i], servoConf[i].min, servoConf[i].max); // limit the values
}
#endif
}
#ifdef USE_SERVOS
bool isMixerUsingServos(void)
{
return useServo;
}
#endif
void filterServos(void)
{
#ifdef USE_SERVOS
static int16_t servoIdx;
static bool servoFilterIsSet;
static biquadFilter_t servoFilter[MAX_SUPPORTED_SERVOS];
#if defined(MIXER_DEBUG)
uint32_t startTime = micros();
#endif
if (mixerConfig->servo_lowpass_enable) {
for (servoIdx = 0; servoIdx < MAX_SUPPORTED_SERVOS; servoIdx++) {
if (!servoFilterIsSet) {
biquadFilterInitLPF(&servoFilter[servoIdx], mixerConfig->servo_lowpass_freq, targetPidLooptime);
servoFilterIsSet = true;
}
servo[servoIdx] = lrintf(biquadFilterApply(&servoFilter[servoIdx], (float)servo[servoIdx]));
// Sanity check
servo[servoIdx] = constrain(servo[servoIdx], servoConf[servoIdx].min, servoConf[servoIdx].max);
}
}
#if defined(MIXER_DEBUG)
debug[0] = (int16_t)(micros() - startTime);
#endif
#endif
}

117
src/main/flight/mixer.h
View File

@ -18,7 +18,6 @@
#pragma once
#define MAX_SUPPORTED_MOTORS 12
#define MAX_SUPPORTED_SERVOS 8
#define QUAD_MOTOR_COUNT 4
@ -77,11 +76,6 @@ typedef struct mixer_s {
typedef struct mixerConfig_s {
int8_t yaw_motor_direction;
#ifdef USE_SERVOS
uint8_t tri_unarmed_servo; // send tail servo correction pulses even when unarmed
uint16_t servo_lowpass_freq; // lowpass servo filter frequency selection; 1/1000ths of loop freq
int8_t servo_lowpass_enable; // enable/disable lowpass filter
#endif
} mixerConfig_t;
typedef struct flight3DConfig_s {
@ -97,105 +91,6 @@ typedef struct airplaneConfig_s {
#define CHANNEL_FORWARDING_DISABLED (uint8_t)0xFF
#ifdef USE_SERVOS
// These must be consecutive, see 'reversedSources'
enum {
INPUT_STABILIZED_ROLL = 0,
INPUT_STABILIZED_PITCH,
INPUT_STABILIZED_YAW,
INPUT_STABILIZED_THROTTLE,
INPUT_RC_ROLL,
INPUT_RC_PITCH,
INPUT_RC_YAW,
INPUT_RC_THROTTLE,
INPUT_RC_AUX1,
INPUT_RC_AUX2,
INPUT_RC_AUX3,
INPUT_RC_AUX4,
INPUT_GIMBAL_PITCH,
INPUT_GIMBAL_ROLL,
INPUT_SOURCE_COUNT
} inputSource_e;
// target servo channels
typedef enum {
SERVO_GIMBAL_PITCH = 0,
SERVO_GIMBAL_ROLL = 1,
SERVO_FLAPS = 2,
SERVO_FLAPPERON_1 = 3,
SERVO_FLAPPERON_2 = 4,
SERVO_RUDDER = 5,
SERVO_ELEVATOR = 6,
SERVO_THROTTLE = 7, // for internal combustion (IC) planes
SERVO_BICOPTER_LEFT = 4,
SERVO_BICOPTER_RIGHT = 5,
SERVO_DUALCOPTER_LEFT = 4,
SERVO_DUALCOPTER_RIGHT = 5,
SERVO_SINGLECOPTER_1 = 3,
SERVO_SINGLECOPTER_2 = 4,
SERVO_SINGLECOPTER_3 = 5,
SERVO_SINGLECOPTER_4 = 6,
} servoIndex_e; // FIXME rename to servoChannel_e
#define SERVO_PLANE_INDEX_MIN SERVO_FLAPS
#define SERVO_PLANE_INDEX_MAX SERVO_THROTTLE
#define SERVO_DUALCOPTER_INDEX_MIN SERVO_DUALCOPTER_LEFT
#define SERVO_DUALCOPTER_INDEX_MAX SERVO_DUALCOPTER_RIGHT
#define SERVO_SINGLECOPTER_INDEX_MIN SERVO_SINGLECOPTER_1
#define SERVO_SINGLECOPTER_INDEX_MAX SERVO_SINGLECOPTER_4
#define SERVO_FLAPPERONS_MIN SERVO_FLAPPERON_1
#define SERVO_FLAPPERONS_MAX SERVO_FLAPPERON_2
typedef struct servoMixer_s {
uint8_t targetChannel; // servo that receives the output of the rule
uint8_t inputSource; // input channel for this rule
int8_t rate; // range [-125;+125] ; can be used to adjust a rate 0-125% and a direction
uint8_t speed; // reduces the speed of the rule, 0=unlimited speed
int8_t min; // lower bound of rule range [0;100]% of servo max-min
int8_t max; // lower bound of rule range [0;100]% of servo max-min
uint8_t box; // active rule if box is enabled, range [0;3], 0=no box, 1=BOXSERVO1, 2=BOXSERVO2, 3=BOXSERVO3
} servoMixer_t;
#define MAX_SERVO_RULES (2 * MAX_SUPPORTED_SERVOS)
#define MAX_SERVO_SPEED UINT8_MAX
#define MAX_SERVO_BOXES 3
// Custom mixer configuration
typedef struct mixerRules_s {
uint8_t servoRuleCount;
const servoMixer_t *rule;
} mixerRules_t;
typedef struct servoParam_s {
int16_t min; // servo min
int16_t max; // servo max
int16_t middle; // servo middle
int8_t rate; // range [-125;+125] ; can be used to adjust a rate 0-125% and a direction
uint8_t angleAtMin; // range [0;180] the measured angle in degrees from the middle when the servo is at the 'min' value.
uint8_t angleAtMax; // range [0;180] the measured angle in degrees from the middle when the servo is at the 'max' value.
int8_t forwardFromChannel; // RX channel index, 0 based. See CHANNEL_FORWARDING_DISABLED
uint32_t reversedSources; // the direction of servo movement for each input source of the servo mixer, bit set=inverted
} __attribute__ ((__packed__)) servoParam_t;
struct gimbalConfig_s;
struct motorConfig_s;
struct rxConfig_s;
extern int16_t servo[MAX_SUPPORTED_SERVOS];
bool isMixerUsingServos(void);
void writeServos(void);
void filterServos(void);
#endif
extern const mixer_t mixers[];
extern int16_t motor[MAX_SUPPORTED_MOTORS];
extern int16_t motor_disarmed[MAX_SUPPORTED_MOTORS];
@ -211,21 +106,13 @@ void mixerUseConfigs(
void writeAllMotors(int16_t mc);
void mixerLoadMix(int index, motorMixer_t *customMixers);
#ifdef USE_SERVOS
void servoMixerInit(servoMixer_t *customServoMixers);
struct servoParam_s;
struct gimbalConfig_s;
void servoUseConfigs(struct servoParam_s *servoConfToUse, struct gimbalConfig_s *gimbalConfigToUse);
void servoMixerLoadMix(int index, servoMixer_t *customServoMixers);
void loadCustomServoMixer(void);
int servoDirection(int servoIndex, int fromChannel);
#endif
void mixerInit(mixerMode_e mixerMode, motorMixer_t *customMotorMixers);
void mixerConfigureOutput(void);
void mixerResetDisarmedMotors(void);
void mixTable(void *pidProfilePtr);
struct pidProfile_s;
void mixTable(struct pidProfile_s *pidProfile);
void syncMotors(bool enabled);
void writeMotors(void);
void stopMotors(void);

490
src/main/flight/servos.c Executable file
View File

@ -0,0 +1,490 @@
/*
* This file is part of Cleanflight.
*
* Cleanflight 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.
*
* Cleanflight 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 Cleanflight. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#include <math.h>
#include "platform.h"
#ifdef USE_SERVOS
#include "build/build_config.h"
#include "common/filter.h"
#include "drivers/pwm_output.h"
#include "drivers/system.h"
#include "rx/rx.h"
#include "io/gimbal.h"
#include "io/servos.h"
#include "flight/mixer.h"
#include "flight/pid.h"
#include "flight/imu.h"
#include "fc/config.h"
#include "fc/rc_controls.h"
#include "fc/runtime_config.h"
#include "config/feature.h"
extern mixerMode_e currentMixerMode;
extern rxConfig_t *rxConfig;
static servoMixerConfig_t *servoMixerConfig;
static uint8_t servoRuleCount = 0;
static servoMixer_t currentServoMixer[MAX_SERVO_RULES];
static gimbalConfig_t *gimbalConfig;
int16_t servo[MAX_SUPPORTED_SERVOS];
static int useServo;
static servoParam_t *servoConf;
#define COUNT_SERVO_RULES(rules) (sizeof(rules) / sizeof(servoMixer_t))
// mixer rule format servo, input, rate, speed, min, max, box
static const servoMixer_t servoMixerAirplane[] = {
{ SERVO_FLAPPERON_1, INPUT_STABILIZED_ROLL, 100, 0, 0, 100, 0 },
{ SERVO_FLAPPERON_2, INPUT_STABILIZED_ROLL, 100, 0, 0, 100, 0 },
{ SERVO_RUDDER, INPUT_STABILIZED_YAW, 100, 0, 0, 100, 0 },
{ SERVO_ELEVATOR, INPUT_STABILIZED_PITCH, 100, 0, 0, 100, 0 },
{ SERVO_THROTTLE, INPUT_STABILIZED_THROTTLE, 100, 0, 0, 100, 0 },
};
static const servoMixer_t servoMixerFlyingWing[] = {
{ SERVO_FLAPPERON_1, INPUT_STABILIZED_ROLL, 100, 0, 0, 100, 0 },
{ SERVO_FLAPPERON_1, INPUT_STABILIZED_PITCH, 100, 0, 0, 100, 0 },
{ SERVO_FLAPPERON_2, INPUT_STABILIZED_ROLL, -100, 0, 0, 100, 0 },
{ SERVO_FLAPPERON_2, INPUT_STABILIZED_PITCH, 100, 0, 0, 100, 0 },
{ SERVO_THROTTLE, INPUT_STABILIZED_THROTTLE, 100, 0, 0, 100, 0 },
};
static const servoMixer_t servoMixerBI[] = {
{ SERVO_BICOPTER_LEFT, INPUT_STABILIZED_YAW, 100, 0, 0, 100, 0 },
{ SERVO_BICOPTER_LEFT, INPUT_STABILIZED_PITCH, 100, 0, 0, 100, 0 },
{ SERVO_BICOPTER_RIGHT, INPUT_STABILIZED_YAW, 100, 0, 0, 100, 0 },
{ SERVO_BICOPTER_RIGHT, INPUT_STABILIZED_PITCH, 100, 0, 0, 100, 0 },
};
static const servoMixer_t servoMixerTri[] = {
{ SERVO_RUDDER, INPUT_STABILIZED_YAW, 100, 0, 0, 100, 0 },
};
static const servoMixer_t servoMixerDual[] = {
{ SERVO_DUALCOPTER_LEFT, INPUT_STABILIZED_PITCH, 100, 0, 0, 100, 0 },
{ SERVO_DUALCOPTER_RIGHT, INPUT_STABILIZED_ROLL, 100, 0, 0, 100, 0 },
};
static const servoMixer_t servoMixerSingle[] = {
{ SERVO_SINGLECOPTER_1, INPUT_STABILIZED_YAW, 100, 0, 0, 100, 0 },
{ SERVO_SINGLECOPTER_1, INPUT_STABILIZED_PITCH, 100, 0, 0, 100, 0 },
{ SERVO_SINGLECOPTER_2, INPUT_STABILIZED_YAW, 100, 0, 0, 100, 0 },
{ SERVO_SINGLECOPTER_2, INPUT_STABILIZED_PITCH, 100, 0, 0, 100, 0 },
{ SERVO_SINGLECOPTER_3, INPUT_STABILIZED_YAW, 100, 0, 0, 100, 0 },
{ SERVO_SINGLECOPTER_3, INPUT_STABILIZED_ROLL, 100, 0, 0, 100, 0 },
{ SERVO_SINGLECOPTER_4, INPUT_STABILIZED_YAW, 100, 0, 0, 100, 0 },
{ SERVO_SINGLECOPTER_4, INPUT_STABILIZED_ROLL, 100, 0, 0, 100, 0 },
};
static const servoMixer_t servoMixerGimbal[] = {
{ SERVO_GIMBAL_PITCH, INPUT_GIMBAL_PITCH, 125, 0, 0, 100, 0 },
{ SERVO_GIMBAL_ROLL, INPUT_GIMBAL_ROLL, 125, 0, 0, 100, 0 },
};
const mixerRules_t servoMixers[] = {
{ 0, NULL }, // entry 0
{ COUNT_SERVO_RULES(servoMixerTri), servoMixerTri }, // MULTITYPE_TRI
{ 0, NULL }, // MULTITYPE_QUADP
{ 0, NULL }, // MULTITYPE_QUADX
{ COUNT_SERVO_RULES(servoMixerBI), servoMixerBI }, // MULTITYPE_BI
{ COUNT_SERVO_RULES(servoMixerGimbal), servoMixerGimbal }, // * MULTITYPE_GIMBAL
{ 0, NULL }, // MULTITYPE_Y6
{ 0, NULL }, // MULTITYPE_HEX6
{ COUNT_SERVO_RULES(servoMixerFlyingWing), servoMixerFlyingWing },// * MULTITYPE_FLYING_WING
{ 0, NULL }, // MULTITYPE_Y4
{ 0, NULL }, // MULTITYPE_HEX6X
{ 0, NULL }, // MULTITYPE_OCTOX8
{ 0, NULL }, // MULTITYPE_OCTOFLATP
{ 0, NULL }, // MULTITYPE_OCTOFLATX
{ COUNT_SERVO_RULES(servoMixerAirplane), servoMixerAirplane }, // * MULTITYPE_AIRPLANE
{ 0, NULL }, // * MULTITYPE_HELI_120_CCPM
{ 0, NULL }, // * MULTITYPE_HELI_90_DEG
{ 0, NULL }, // MULTITYPE_VTAIL4
{ 0, NULL }, // MULTITYPE_HEX6H
{ 0, NULL }, // * MULTITYPE_PPM_TO_SERVO
{ COUNT_SERVO_RULES(servoMixerDual), servoMixerDual }, // MULTITYPE_DUALCOPTER
{ COUNT_SERVO_RULES(servoMixerSingle), servoMixerSingle }, // MULTITYPE_SINGLECOPTER
{ 0, NULL }, // MULTITYPE_ATAIL4
{ 0, NULL }, // MULTITYPE_CUSTOM
{ 0, NULL }, // MULTITYPE_CUSTOM_PLANE
{ 0, NULL }, // MULTITYPE_CUSTOM_TRI
{ 0, NULL },
};
static servoMixer_t *customServoMixers;
void servoUseConfigs(servoMixerConfig_t *servoMixerConfigToUse, servoParam_t *servoParamsToUse, struct gimbalConfig_s *gimbalConfigToUse)
{
servoMixerConfig = servoMixerConfigToUse;
servoConf = servoParamsToUse;
gimbalConfig = gimbalConfigToUse;
}
int16_t determineServoMiddleOrForwardFromChannel(servoIndex_e servoIndex)
{
uint8_t channelToForwardFrom = servoConf[servoIndex].forwardFromChannel;
if (channelToForwardFrom != CHANNEL_FORWARDING_DISABLED && channelToForwardFrom < rxRuntimeConfig.channelCount) {
return rcData[channelToForwardFrom];
}
return servoConf[servoIndex].middle;
}
int servoDirection(int servoIndex, int inputSource)
{
// determine the direction (reversed or not) from the direction bitfield of the servo
if (servoConf[servoIndex].reversedSources & (1 << inputSource))
return -1;
else
return 1;
}
void servoMixerInit(servoMixer_t *initialCustomServoMixers)
{
customServoMixers = initialCustomServoMixers;
// enable servos for mixes that require them. note, this shifts motor counts.
useServo = mixers[currentMixerMode].useServo;
// if we want camstab/trig, that also enables servos, even if mixer doesn't
if (feature(FEATURE_SERVO_TILT))
useServo = 1;
// give all servos a default command
for (uint8_t i = 0; i < MAX_SUPPORTED_SERVOS; i++) {
servo[i] = DEFAULT_SERVO_MIDDLE;
}
}
void loadCustomServoMixer(void)
{
// reset settings
servoRuleCount = 0;
memset(currentServoMixer, 0, sizeof(currentServoMixer));
// load custom mixer into currentServoMixer
for (uint8_t i = 0; i < MAX_SERVO_RULES; i++) {
// check if done
if (customServoMixers[i].rate == 0)
break;
currentServoMixer[i] = customServoMixers[i];
servoRuleCount++;
}
}
void servoConfigureOutput(void)
{
if (useServo) {
servoRuleCount = servoMixers[currentMixerMode].servoRuleCount;
if (servoMixers[currentMixerMode].rule) {
for (int i = 0; i < servoRuleCount; i++)
currentServoMixer[i] = servoMixers[currentMixerMode].rule[i];
}
}
// set flag that we're on something with wings
if (currentMixerMode == MIXER_FLYING_WING ||
currentMixerMode == MIXER_AIRPLANE ||
currentMixerMode == MIXER_CUSTOM_AIRPLANE
) {
ENABLE_STATE(FIXED_WING);
if (currentMixerMode == MIXER_CUSTOM_AIRPLANE) {
loadCustomServoMixer();
}
} else {
DISABLE_STATE(FIXED_WING);
if (currentMixerMode == MIXER_CUSTOM_TRI) {
loadCustomServoMixer();
}
}
}
void servoMixerLoadMix(int index, servoMixer_t *customServoMixers)
{
int i;
// we're 1-based
index++;
// clear existing
for (i = 0; i < MAX_SERVO_RULES; i++)
customServoMixers[i].targetChannel = customServoMixers[i].inputSource = customServoMixers[i].rate = customServoMixers[i].box = 0;
for (i = 0; i < servoMixers[index].servoRuleCount; i++)
customServoMixers[i] = servoMixers[index].rule[i];
}
STATIC_UNIT_TESTED void forwardAuxChannelsToServos(uint8_t firstServoIndex)
{
// start forwarding from this channel
uint8_t channelOffset = AUX1;
uint8_t servoOffset;
for (servoOffset = 0; servoOffset < MAX_AUX_CHANNEL_COUNT && channelOffset < MAX_SUPPORTED_RC_CHANNEL_COUNT; servoOffset++) {
pwmWriteServo(firstServoIndex + servoOffset, rcData[channelOffset++]);
}
}
static void updateGimbalServos(uint8_t firstServoIndex)
{
pwmWriteServo(firstServoIndex + 0, servo[SERVO_GIMBAL_PITCH]);
pwmWriteServo(firstServoIndex + 1, servo[SERVO_GIMBAL_ROLL]);
}
void writeServos(void)
{
uint8_t servoIndex = 0;
switch (currentMixerMode) {
case MIXER_BICOPTER:
pwmWriteServo(servoIndex++, servo[SERVO_BICOPTER_LEFT]);
pwmWriteServo(servoIndex++, servo[SERVO_BICOPTER_RIGHT]);
break;
case MIXER_TRI:
case MIXER_CUSTOM_TRI:
if (servoMixerConfig->tri_unarmed_servo) {
// if unarmed flag set, we always move servo
pwmWriteServo(servoIndex++, servo[SERVO_RUDDER]);
} else {
// otherwise, only move servo when copter is armed
if (ARMING_FLAG(ARMED))
pwmWriteServo(servoIndex++, servo[SERVO_RUDDER]);
else
pwmWriteServo(servoIndex++, 0); // kill servo signal completely.
}
break;
case MIXER_FLYING_WING:
pwmWriteServo(servoIndex++, servo[SERVO_FLAPPERON_1]);
pwmWriteServo(servoIndex++, servo[SERVO_FLAPPERON_2]);
break;
case MIXER_DUALCOPTER:
pwmWriteServo(servoIndex++, servo[SERVO_DUALCOPTER_LEFT]);
pwmWriteServo(servoIndex++, servo[SERVO_DUALCOPTER_RIGHT]);
break;
case MIXER_CUSTOM_AIRPLANE:
case MIXER_AIRPLANE:
for (int i = SERVO_PLANE_INDEX_MIN; i <= SERVO_PLANE_INDEX_MAX; i++) {
pwmWriteServo(servoIndex++, servo[i]);
}
break;
case MIXER_SINGLECOPTER:
for (int i = SERVO_SINGLECOPTER_INDEX_MIN; i <= SERVO_SINGLECOPTER_INDEX_MAX; i++) {
pwmWriteServo(servoIndex++, servo[i]);
}
break;
default:
break;
}
// Two servos for SERVO_TILT, if enabled
if (feature(FEATURE_SERVO_TILT) || currentMixerMode == MIXER_GIMBAL) {
updateGimbalServos(servoIndex);
servoIndex += 2;
}
// forward AUX to remaining servo outputs (not constrained)
if (feature(FEATURE_CHANNEL_FORWARDING)) {
forwardAuxChannelsToServos(servoIndex);
servoIndex += MAX_AUX_CHANNEL_COUNT;
}
}
STATIC_UNIT_TESTED void servoMixer(void)
{
int16_t input[INPUT_SOURCE_COUNT]; // Range [-500:+500]
static int16_t currentOutput[MAX_SERVO_RULES];
uint8_t i;
if (FLIGHT_MODE(PASSTHRU_MODE)) {
// Direct passthru from RX
input[INPUT_STABILIZED_ROLL] = rcCommand[ROLL];
input[INPUT_STABILIZED_PITCH] = rcCommand[PITCH];
input[INPUT_STABILIZED_YAW] = rcCommand[YAW];
} else {
// Assisted modes (gyro only or gyro+acc according to AUX configuration in Gui
input[INPUT_STABILIZED_ROLL] = axisPIDf[ROLL];
input[INPUT_STABILIZED_PITCH] = axisPIDf[PITCH];
input[INPUT_STABILIZED_YAW] = axisPIDf[YAW];
// Reverse yaw servo when inverted in 3D mode
if (feature(FEATURE_3D) && (rcData[THROTTLE] < rxConfig->midrc)) {
input[INPUT_STABILIZED_YAW] *= -1;
}
}
input[INPUT_GIMBAL_PITCH] = scaleRange(attitude.values.pitch, -1800, 1800, -500, +500);
input[INPUT_GIMBAL_ROLL] = scaleRange(attitude.values.roll, -1800, 1800, -500, +500);
input[INPUT_STABILIZED_THROTTLE] = motor[0] - 1000 - 500; // Since it derives from rcCommand or mincommand and must be [-500:+500]
// center the RC input value around the RC middle value
// by subtracting the RC middle value from the RC input value, we get:
// data - middle = input
// 2000 - 1500 = +500
// 1500 - 1500 = 0
// 1000 - 1500 = -500
input[INPUT_RC_ROLL] = rcData[ROLL] - rxConfig->midrc;
input[INPUT_RC_PITCH] = rcData[PITCH] - rxConfig->midrc;
input[INPUT_RC_YAW] = rcData[YAW] - rxConfig->midrc;
input[INPUT_RC_THROTTLE] = rcData[THROTTLE] - rxConfig->midrc;
input[INPUT_RC_AUX1] = rcData[AUX1] - rxConfig->midrc;
input[INPUT_RC_AUX2] = rcData[AUX2] - rxConfig->midrc;
input[INPUT_RC_AUX3] = rcData[AUX3] - rxConfig->midrc;
input[INPUT_RC_AUX4] = rcData[AUX4] - rxConfig->midrc;
for (i = 0; i < MAX_SUPPORTED_SERVOS; i++)
servo[i] = 0;
// mix servos according to rules
for (i = 0; i < servoRuleCount; i++) {
// consider rule if no box assigned or box is active
if (currentServoMixer[i].box == 0 || IS_RC_MODE_ACTIVE(BOXSERVO1 + currentServoMixer[i].box - 1)) {
uint8_t target = currentServoMixer[i].targetChannel;
uint8_t from = currentServoMixer[i].inputSource;
uint16_t servo_width = servoConf[target].max - servoConf[target].min;
int16_t min = currentServoMixer[i].min * servo_width / 100 - servo_width / 2;
int16_t max = currentServoMixer[i].max * servo_width / 100 - servo_width / 2;
if (currentServoMixer[i].speed == 0)
currentOutput[i] = input[from];
else {
if (currentOutput[i] < input[from])
currentOutput[i] = constrain(currentOutput[i] + currentServoMixer[i].speed, currentOutput[i], input[from]);
else if (currentOutput[i] > input[from])
currentOutput[i] = constrain(currentOutput[i] - currentServoMixer[i].speed, input[from], currentOutput[i]);
}
servo[target] += servoDirection(target, from) * constrain(((int32_t)currentOutput[i] * currentServoMixer[i].rate) / 100, min, max);
} else {
currentOutput[i] = 0;
}
}
for (i = 0; i < MAX_SUPPORTED_SERVOS; i++) {
servo[i] = ((int32_t)servoConf[i].rate * servo[i]) / 100L;
servo[i] += determineServoMiddleOrForwardFromChannel(i);
}
}
void servoTable(void)
{
// airplane / servo mixes
switch (currentMixerMode) {
case MIXER_CUSTOM_AIRPLANE:
case MIXER_FLYING_WING:
case MIXER_AIRPLANE:
case MIXER_BICOPTER:
case MIXER_CUSTOM_TRI:
case MIXER_TRI:
case MIXER_DUALCOPTER:
case MIXER_SINGLECOPTER:
case MIXER_GIMBAL:
servoMixer();
break;
/*
case MIXER_GIMBAL:
servo[SERVO_GIMBAL_PITCH] = (((int32_t)servoConf[SERVO_GIMBAL_PITCH].rate * attitude.values.pitch) / 50) + determineServoMiddleOrForwardFromChannel(SERVO_GIMBAL_PITCH);
servo[SERVO_GIMBAL_ROLL] = (((int32_t)servoConf[SERVO_GIMBAL_ROLL].rate * attitude.values.roll) / 50) + determineServoMiddleOrForwardFromChannel(SERVO_GIMBAL_ROLL);
break;
*/
default:
break;
}
// camera stabilization
if (feature(FEATURE_SERVO_TILT)) {
// center at fixed position, or vary either pitch or roll by RC channel
servo[SERVO_GIMBAL_PITCH] = determineServoMiddleOrForwardFromChannel(SERVO_GIMBAL_PITCH);
servo[SERVO_GIMBAL_ROLL] = determineServoMiddleOrForwardFromChannel(SERVO_GIMBAL_ROLL);
if (IS_RC_MODE_ACTIVE(BOXCAMSTAB)) {
if (gimbalConfig->mode == GIMBAL_MODE_MIXTILT) {
servo[SERVO_GIMBAL_PITCH] -= (-(int32_t)servoConf[SERVO_GIMBAL_PITCH].rate) * attitude.values.pitch / 50 - (int32_t)servoConf[SERVO_GIMBAL_ROLL].rate * attitude.values.roll / 50;
servo[SERVO_GIMBAL_ROLL] += (-(int32_t)servoConf[SERVO_GIMBAL_PITCH].rate) * attitude.values.pitch / 50 + (int32_t)servoConf[SERVO_GIMBAL_ROLL].rate * attitude.values.roll / 50;
} else {
servo[SERVO_GIMBAL_PITCH] += (int32_t)servoConf[SERVO_GIMBAL_PITCH].rate * attitude.values.pitch / 50;
servo[SERVO_GIMBAL_ROLL] += (int32_t)servoConf[SERVO_GIMBAL_ROLL].rate * attitude.values.roll / 50;
}
}
}
// constrain servos
for (int i = 0; i < MAX_SUPPORTED_SERVOS; i++) {
servo[i] = constrain(servo[i], servoConf[i].min, servoConf[i].max); // limit the values
}
}
bool isMixerUsingServos(void)
{
return useServo;
}
void filterServos(void)
{
static int16_t servoIdx;
static bool servoFilterIsSet;
static biquadFilter_t servoFilter[MAX_SUPPORTED_SERVOS];
#if defined(MIXER_DEBUG)
uint32_t startTime = micros();
#endif
if (servoMixerConfig->servo_lowpass_enable) {
for (servoIdx = 0; servoIdx < MAX_SUPPORTED_SERVOS; servoIdx++) {
if (!servoFilterIsSet) {
biquadFilterInitLPF(&servoFilter[servoIdx], servoMixerConfig->servo_lowpass_freq, targetPidLooptime);
servoFilterIsSet = true;
}
servo[servoIdx] = lrintf(biquadFilterApply(&servoFilter[servoIdx], (float)servo[servoIdx]));
// Sanity check
servo[servoIdx] = constrain(servo[servoIdx], servoConf[servoIdx].min, servoConf[servoIdx].max);
}
}
#if defined(MIXER_DEBUG)
debug[0] = (int16_t)(micros() - startTime);
#endif
}
#endif

129
src/main/flight/servos.h Normal file
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@ -0,0 +1,129 @@
/*
* This file is part of Cleanflight.
*
* Cleanflight 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.
*
* Cleanflight 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 Cleanflight. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#define MAX_SUPPORTED_SERVOS 8
// These must be consecutive, see 'reversedSources'
enum {
INPUT_STABILIZED_ROLL = 0,
INPUT_STABILIZED_PITCH,
INPUT_STABILIZED_YAW,
INPUT_STABILIZED_THROTTLE,
INPUT_RC_ROLL,
INPUT_RC_PITCH,
INPUT_RC_YAW,
INPUT_RC_THROTTLE,
INPUT_RC_AUX1,
INPUT_RC_AUX2,
INPUT_RC_AUX3,
INPUT_RC_AUX4,
INPUT_GIMBAL_PITCH,
INPUT_GIMBAL_ROLL,
INPUT_SOURCE_COUNT
} inputSource_e;
// target servo channels
typedef enum {
SERVO_GIMBAL_PITCH = 0,
SERVO_GIMBAL_ROLL = 1,
SERVO_FLAPS = 2,
SERVO_FLAPPERON_1 = 3,
SERVO_FLAPPERON_2 = 4,
SERVO_RUDDER = 5,
SERVO_ELEVATOR = 6,
SERVO_THROTTLE = 7, // for internal combustion (IC) planes
SERVO_BICOPTER_LEFT = 4,
SERVO_BICOPTER_RIGHT = 5,
SERVO_DUALCOPTER_LEFT = 4,
SERVO_DUALCOPTER_RIGHT = 5,
SERVO_SINGLECOPTER_1 = 3,
SERVO_SINGLECOPTER_2 = 4,
SERVO_SINGLECOPTER_3 = 5,
SERVO_SINGLECOPTER_4 = 6,
} servoIndex_e; // FIXME rename to servoChannel_e
#define SERVO_PLANE_INDEX_MIN SERVO_FLAPS
#define SERVO_PLANE_INDEX_MAX SERVO_THROTTLE
#define SERVO_DUALCOPTER_INDEX_MIN SERVO_DUALCOPTER_LEFT
#define SERVO_DUALCOPTER_INDEX_MAX SERVO_DUALCOPTER_RIGHT
#define SERVO_SINGLECOPTER_INDEX_MIN SERVO_SINGLECOPTER_1
#define SERVO_SINGLECOPTER_INDEX_MAX SERVO_SINGLECOPTER_4
#define SERVO_FLAPPERONS_MIN SERVO_FLAPPERON_1
#define SERVO_FLAPPERONS_MAX SERVO_FLAPPERON_2
typedef struct servoMixer_s {
uint8_t targetChannel; // servo that receives the output of the rule
uint8_t inputSource; // input channel for this rule
int8_t rate; // range [-125;+125] ; can be used to adjust a rate 0-125% and a direction
uint8_t speed; // reduces the speed of the rule, 0=unlimited speed
int8_t min; // lower bound of rule range [0;100]% of servo max-min
int8_t max; // lower bound of rule range [0;100]% of servo max-min
uint8_t box; // active rule if box is enabled, range [0;3], 0=no box, 1=BOXSERVO1, 2=BOXSERVO2, 3=BOXSERVO3
} servoMixer_t;
#define MAX_SERVO_RULES (2 * MAX_SUPPORTED_SERVOS)
#define MAX_SERVO_SPEED UINT8_MAX
#define MAX_SERVO_BOXES 3
// Custom mixer configuration
typedef struct mixerRules_s {
uint8_t servoRuleCount;
const servoMixer_t *rule;
} mixerRules_t;
typedef struct servoParam_s {
int16_t min; // servo min
int16_t max; // servo max
int16_t middle; // servo middle
int8_t rate; // range [-125;+125] ; can be used to adjust a rate 0-125% and a direction
uint8_t angleAtMin; // range [0;180] the measured angle in degrees from the middle when the servo is at the 'min' value.
uint8_t angleAtMax; // range [0;180] the measured angle in degrees from the middle when the servo is at the 'max' value.
int8_t forwardFromChannel; // RX channel index, 0 based. See CHANNEL_FORWARDING_DISABLED
uint32_t reversedSources; // the direction of servo movement for each input source of the servo mixer, bit set=inverted
} __attribute__ ((__packed__)) servoParam_t;
typedef struct servoMixerConfig_s{
uint8_t tri_unarmed_servo; // send tail servo correction pulses even when unarmed
uint16_t servo_lowpass_freq; // lowpass servo filter frequency selection; 1/1000ths of loop freq
int8_t servo_lowpass_enable; // enable/disable lowpass filter
} servoMixerConfig_t;
extern int16_t servo[MAX_SUPPORTED_SERVOS];
void servoTable(void);
bool isMixerUsingServos(void);
void writeServos(void);
void filterServos(void);
void servoMixerInit(servoMixer_t *customServoMixers);
struct gimbalConfig_s;
void servoUseConfigs(servoMixerConfig_t *servoConfigToUse, servoParam_t *servoParamsToUse, struct gimbalConfig_s *gimbalConfigToUse);
void servoMixerLoadMix(int index, servoMixer_t *customServoMixers);
void loadCustomServoMixer(void);
void servoConfigureOutput(void);
int servoDirection(int servoIndex, int fromChannel);

2
src/main/io/motors.h
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@ -17,7 +17,7 @@
#pragma once
#include "drivers/io.h"
#include "drivers/io_types.h"
#include "flight/mixer.h"
typedef struct motorConfig_s {

6
src/main/io/serial_cli.c
View File

@ -823,9 +823,9 @@ const clivalue_t valueTable[] = {
{ "pidsum_limit", VAR_FLOAT | PROFILE_VALUE, &masterConfig.profile[0].pidProfile.pidSumLimit, .config.minmax = { 0.1, 1.0 } },
#ifdef USE_SERVOS
{ "servo_center_pulse", VAR_UINT16 | MASTER_VALUE, &masterConfig.servoConfig.servoCenterPulse, .config.minmax = { PWM_RANGE_ZERO, PWM_RANGE_MAX } },
{ "tri_unarmed_servo", VAR_INT8 | MASTER_VALUE | MODE_LOOKUP, &masterConfig.mixerConfig.tri_unarmed_servo, .config.lookup = { TABLE_OFF_ON } },
{ "servo_lowpass_freq", VAR_UINT16 | MASTER_VALUE, &masterConfig.mixerConfig.servo_lowpass_freq, .config.minmax = { 10, 400} },
{ "servo_lowpass_enable", VAR_INT8 | MASTER_VALUE | MODE_LOOKUP, &masterConfig.mixerConfig.servo_lowpass_enable, .config.lookup = { TABLE_OFF_ON } },
{ "tri_unarmed_servo", VAR_INT8 | MASTER_VALUE | MODE_LOOKUP, &masterConfig.servoMixerConfig.tri_unarmed_servo, .config.lookup = { TABLE_OFF_ON } },
{ "servo_lowpass_freq", VAR_UINT16 | MASTER_VALUE, &masterConfig.servoMixerConfig.servo_lowpass_freq, .config.minmax = { 10, 400} },
{ "servo_lowpass_enable", VAR_INT8 | MASTER_VALUE | MODE_LOOKUP, &masterConfig.servoMixerConfig.servo_lowpass_enable, .config.lookup = { TABLE_OFF_ON } },
{ "servo_pwm_rate", VAR_UINT16 | MASTER_VALUE, &masterConfig.servoConfig.servoPwmRate, .config.minmax = { 50, 498 } },
{ "gimbal_mode", VAR_UINT8 | MASTER_VALUE | MODE_LOOKUP, &masterConfig.gimbalConfig.mode, .config.lookup = { TABLE_GIMBAL_MODE } },
#endif

4
src/main/io/servos.h
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@ -17,8 +17,8 @@
#pragma once
#include "drivers/io.h"
#include "flight/mixer.h"
#include "drivers/io_types.h"
#include "flight/servos.h"
typedef struct servoConfig_s {
// PWM values, in milliseconds, common range is 1000-2000 (1 to 2ms)

2
src/main/main.c
View File

@ -288,7 +288,7 @@ void init(void)
#endif
mixerConfigureOutput();
// pwmInit() needs to be called as soon as possible for ESC compatibility reasons
servoConfigureOutput();
systemState |= SYSTEM_STATE_MOTORS_READY;
#ifdef BEEPER