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[inav.git] / src / test / unit / flight_mixer_unittest.cc.txt
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1 /*
2  * This file is part of Cleanflight.
3  *
4  * Cleanflight is free software: you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation, either version 3 of the License, or
7  * (at your option) any later version.
8  *
9  * Cleanflight is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
16  */
18 #include <stdint.h>
19 #include <stdbool.h>
21 #include <limits.h>
23 extern "C" {
24     #include "debug.h"
26     #include "platform.h"
28     #include "common/axis.h"
29     #include "common/maths.h"
31     #include "drivers/sensor.h"
32     #include "drivers/accgyro.h"
33     #include "drivers/pwm_mapping.h"
35     #include "sensors/sensors.h"
36     #include "sensors/acceleration.h"
38     #include "rx/rx.h"
39     #include "flight/pid.h"
40     #include "flight/imu.h"
41     #include "flight/mixer.h"
42     #include "flight/lowpass.h"
44     #include "io/escservo.h"
45     #include "io/rc_controls.h"
47     void mixerInit(mixerMode_e mixerMode, motorMixer_t *initialCustomMixers, servoMixer_t *initialCustomServoMixers);
48     void mixerUsePWMOutputConfiguration(pwmOutputConfiguration_t *pwmOutputConfiguration);
51 #include "unittest_macros.h"
52 #include "gtest/gtest.h"
54 // input
55 #define TEST_RC_MID 1500
57 // output
58 #define TEST_MIN_COMMAND 1000
59 #define TEST_SERVO_MID 1500
61 typedef struct motor_s {
62     uint16_t value;
63 } motor_t;
65 typedef struct servo_s {
66     uint16_t value;
67 } servo_t;
69 motor_t motors[MAX_SUPPORTED_MOTORS];
70 servo_t servos[MAX_SUPPORTED_SERVOS];
72 uint8_t lastOneShotUpdateMotorCount;
74 uint32_t testFeatureMask = 0;
76 int updatedServoCount;
77 int updatedMotorCount;
79 class ChannelForwardingTest : public ::testing::Test {
80 protected:
81     virtual void SetUp() {
82         memset(&servos, 0, sizeof(servos));
83     }
87 TEST_F(ChannelForwardingTest, TestForwardAuxChannelsToServosWithNoServos)
90     rcData[AUX1] = TEST_RC_MID;
91     rcData[AUX2] = TEST_RC_MID;
92     rcData[AUX3] = TEST_RC_MID;
93     rcData[AUX4] = TEST_RC_MID;
95     // when
97     // then
98     for (uint8_t i = 0; i < MAX_SUPPORTED_SERVOS; i++) {
99         EXPECT_EQ(0, servos[i].value);
100     }
103 TEST_F(ChannelForwardingTest, TestForwardAuxChannelsToServosWithMaxServos)
105     // given
107     rcData[AUX1] = 1000;
108     rcData[AUX2] = 1250;
109     rcData[AUX3] = 1750;
110     rcData[AUX4] = 2000;
112     // when
113     forwardAuxChannelsToServos(MAX_SUPPORTED_SERVOS);
115     // then
116     uint8_t i;
117     for (i = 0; i < MAX_SUPPORTED_SERVOS; i++) {
118         EXPECT_EQ(0, servos[i].value);
119     }
122 TEST_F(ChannelForwardingTest, TestForwardAuxChannelsToServosWithLessRemainingServosThanAuxChannelsToForward)
124     // given
126     rcData[AUX1] = 1000;
127     rcData[AUX2] = 1250;
128     rcData[AUX3] = 1750;
129     rcData[AUX4] = 2000;
131     // when
132     forwardAuxChannelsToServos(MAX_SUPPORTED_SERVOS - 2);
134     // then
135     uint8_t i;
136     for (i = 0; i < MAX_SUPPORTED_SERVOS - 2; i++) {
137         EXPECT_EQ(0, servos[i].value);
138     }
140     // -1 for zero based offset
141     EXPECT_EQ(1000, servos[MAX_SUPPORTED_SERVOS - 1 - 1].value);
142     EXPECT_EQ(1250, servos[MAX_SUPPORTED_SERVOS - 0 - 1].value);
145 class BasicMixerIntegrationTest : public ::testing::Test {
146 protected:
147     mixerConfig_t mixerConfig;
148     rxConfig_t rxConfig;
149     escAndServoConfig_t escAndServoConfig;
150     servoParam_t servoConf[MAX_SUPPORTED_SERVOS];
151     gimbalConfig_t gimbalConfig = {
152         .mode = GIMBAL_MODE_NORMAL
153     };
155     motorMixer_t customMotorMixer[MAX_SUPPORTED_MOTORS];
156     servoMixer_t customServoMixer[MAX_SUPPORTED_SERVOS];
158     virtual void SetUp() {
159         updatedServoCount = 0;
160         updatedMotorCount = 0;
162         memset(&mixerConfig, 0, sizeof(mixerConfig));
163         memset(&rxConfig, 0, sizeof(rxConfig));
164         memset(&escAndServoConfig, 0, sizeof(escAndServoConfig));
165         memset(&servoConf, 0, sizeof(servoConf));
167         memset(rcData, 0, sizeof(rcData));
168         memset(rcCommand, 0, sizeof(rcCommand));
169         memset(axisPID, 0, sizeof(axisPID));
171         memset(&customMotorMixer, 0, sizeof(customMotorMixer));
172     }
174     virtual void withDefaultEscAndServoConfiguration(void) {
175         escAndServoConfig.mincommand = TEST_MIN_COMMAND;
176     }
178     virtual void withDefaultRxConfig(void) {
179         rxConfig.midrc = 1500;
180     }
182     virtual void configureMixer(void) {
183         mixerUseConfigs(
184             servoConf,
185             &gimbalConfig,
186             NULL,
187             &escAndServoConfig,
188             &mixerConfig,
189             NULL,
190             &rxConfig
191         );
192     }
195 TEST_F(BasicMixerIntegrationTest, TestTricopterServo)
197     // given
198     rxConfig.midrc = 1500;
200     mixerConfig.tri_unarmed_servo = 1;
202     withDefaultEscAndServoConfiguration();
203     withDefaultRxConfig();
205     servoConf[5].min = DEFAULT_SERVO_MIN;
206     servoConf[5].max = DEFAULT_SERVO_MAX;
207     servoConf[5].middle = DEFAULT_SERVO_MIDDLE;
208     servoConf[5].rate = 100;
210     configureMixer();
212     mixerInit(MIXER_TRI, customMotorMixer, customServoMixer);
214     // and
215     pwmOutputConfiguration_t pwmOutputConfiguration = {
216             .servoCount = 1,
217             .motorCount = 3
218     };
220     mixerUsePWMOutputConfiguration(&pwmOutputConfiguration);
222     // and
223     axisPID[YAW] = 0;
225     // when
226     mixTable();
227     writeServos();
229     // then
230     EXPECT_EQ(1, updatedServoCount);
231     EXPECT_EQ(TEST_SERVO_MID, servos[0].value);
234 TEST_F(BasicMixerIntegrationTest, TestQuadMotors)
236     // given
237     withDefaultEscAndServoConfiguration();
239     configureMixer();
241     mixerInit(MIXER_QUADX, customMotorMixer, customServoMixer);
243     // and
244     pwmOutputConfiguration_t pwmOutputConfiguration = {
245             .servoCount = 0,
246             .motorCount = 4
247     };
249     mixerUsePWMOutputConfiguration(&pwmOutputConfiguration);
251     // and
252     memset(rcCommand, 0, sizeof(rcCommand));
254     // and
255     memset(axisPID, 0, sizeof(axisPID));
256     axisPID[YAW] = 0;
259     // when
260     mixTable();
261     writeMotors();
263     // then
264     EXPECT_EQ(4, updatedMotorCount);
266     EXPECT_EQ(TEST_MIN_COMMAND, motors[0].value);
267     EXPECT_EQ(TEST_MIN_COMMAND, motors[1].value);
268     EXPECT_EQ(TEST_MIN_COMMAND, motors[2].value);
269     EXPECT_EQ(TEST_MIN_COMMAND, motors[3].value);
273 class CustomMixerIntegrationTest : public BasicMixerIntegrationTest {
274 protected:
276     virtual void SetUp() {
278         BasicMixerIntegrationTest::SetUp();
280         memset(&servoConf, 0, sizeof(servoConf));
281         for (int i = 0; i < MAX_SUPPORTED_SERVOS; i++) {
282             servoConf[i].min = DEFAULT_SERVO_MIN;
283             servoConf[i].max = DEFAULT_SERVO_MAX;
284             servoConf[i].middle = DEFAULT_SERVO_MIDDLE;
285             servoConf[i].rate = 100;
286         }
288         withDefaultEscAndServoConfiguration();
289         withDefaultRxConfig();
291         configureMixer();
293         memset(&customMotorMixer, 0, sizeof(customMotorMixer));
294         memset(&customServoMixer, 0, sizeof(customServoMixer));
295     }
299 TEST_F(CustomMixerIntegrationTest, TestCustomMixer)
301     // given
302     enum {
303         EXPECTED_SERVOS_TO_MIX_COUNT = 6,
304         EXPECTED_MOTORS_TO_MIX_COUNT = 2
305     };
307     servoMixer_t testServoMixer[EXPECTED_SERVOS_TO_MIX_COUNT] = {
308         { SERVO_ELEVATOR, INPUT_STABILIZED_PITCH, 100, 0, 0, 100, 0 },
309         { SERVO_FLAPPERON_1, INPUT_STABILIZED_ROLL,  100, 0, 0, 100, 0 },
310         { SERVO_FLAPPERON_2, INPUT_STABILIZED_ROLL,  100, 0, 0, 100, 0 },
311         { SERVO_RUDDER, INPUT_STABILIZED_YAW,   100, 0, 0, 100, 0 },
312         { SERVO_THROTTLE, INPUT_STABILIZED_THROTTLE, 100, 0, 0, 100, 0 },
313         { SERVO_FLAPS, INPUT_RC_AUX1,  100, 0, 0, 100, 0 },
314     };
315     memcpy(customServoMixer, testServoMixer, sizeof(testServoMixer));
317     static const motorMixer_t testMotorMixer[EXPECTED_MOTORS_TO_MIX_COUNT] = {
318         { 1.0f,  0.0f,  0.0f, -1.0f },          // LEFT
319         { 1.0f,  0.0f,  0.0f,  1.0f },          // RIGHT
320     };
321     memcpy(customMotorMixer, testMotorMixer, sizeof(testMotorMixer));
323     mixerInit(MIXER_CUSTOM_AIRPLANE, customMotorMixer, customServoMixer);
325     pwmOutputConfiguration_t pwmOutputConfiguration = {
326             .servoCount = 6,
327             .motorCount = 2
328     };
330     mixerUsePWMOutputConfiguration(&pwmOutputConfiguration);
332     // and
333     rcCommand[THROTTLE] = 1000;
335     // and
336     rcData[AUX1] = 2000;
338     // and
339     memset(axisPID, 0, sizeof(axisPID));
340     axisPID[YAW] = 0;
343     // when
344     mixTable();
345     writeMotors();
346     writeServos();
348     // then
349     EXPECT_EQ(EXPECTED_MOTORS_TO_MIX_COUNT, updatedMotorCount);
351     EXPECT_EQ(TEST_MIN_COMMAND, motors[0].value);
352     EXPECT_EQ(TEST_MIN_COMMAND, motors[1].value);
354     EXPECT_EQ(EXPECTED_SERVOS_TO_MIX_COUNT, updatedServoCount);
356     EXPECT_EQ(TEST_SERVO_MID, servos[0].value);
357     EXPECT_EQ(TEST_SERVO_MID, servos[1].value);
358     EXPECT_EQ(TEST_SERVO_MID, servos[2].value);
359     EXPECT_EQ(TEST_SERVO_MID, servos[3].value);
360     EXPECT_EQ(1000, servos[4].value); // Throttle
361     EXPECT_EQ(2000, servos[5].value); // Flaps
365 // STUBS
367 extern "C" {
368 attitudeEulerAngles_t attitude;
369 rxRuntimeConfig_t rxRuntimeConfig;
371 int16_t axisPID[XYZ_AXIS_COUNT];
372 int16_t rcCommand[4];
373 int16_t rcData[MAX_SUPPORTED_RC_CHANNEL_COUNT];
375 uint32_t rcModeActivationMask;
376 int32_t debug[DEBUG32_VALUE_COUNT];
378 uint8_t stateFlags;
379 uint16_t flightModeFlags;
380 uint8_t armingFlags;
382 void delay(uint32_t) {}
384 bool feature(uint32_t mask) {
385     return (mask & testFeatureMask);
388 int32_t lowpassFixed(lowpass_t *, int32_t, int16_t) {
389     return 0;
392 void pwmWriteMotor(uint8_t index, uint16_t value) {
393     motors[index].value = value;
394     updatedMotorCount++;
397 void pwmShutdownPulsesForAllMotors(uint8_t motorCount)
399     uint8_t index;
401     for(index = 0; index < motorCount; index++){
402         motors[index].value = 0;
403     }
406 void pwmCompleteOneshotMotorUpdate(uint8_t motorCount) {
407     lastOneShotUpdateMotorCount = motorCount;
410 void pwmWriteServo(uint8_t index, uint16_t value) {
411     // FIXME logic in test, mimic's production code.
412     // Perhaps the solution is to remove the logic from the production code version and assume that
413     // anything calling calling pwmWriteServo always uses a valid index?
414     // See MAX_SERVOS in pwm_output (driver) and MAX_SUPPORTED_SERVOS (flight)
415     if (index < MAX_SERVOS) {
416         servos[index].value = value;
417     }
418     updatedServoCount++;
421 bool failsafeIsActive(void) {
422     return false;