Add command to rotate gimbal to specific coordinates

include/gimbal.h

@@ -18,3 +18,21 @@ gimbal_ctrl_speed (
 		int16_t p,
 		int16_t y,
 		int16_t r );
+
+#define GIMBAL_ROTATE_CMD 0xb03f
+void
+gimbal_rotate (
+		union Request* req,
+        uint16_t seq,
+        bool ack,
+		int16_t p,
+		int16_t y );
+void
+gimbal_rotate_to (
+		union Request* req,
+        uint16_t seq,
+        bool ack,
+		int16_t p,
+		int16_t y );
+
+#define GIMBAL_ACTION_PUSH_CMD 0xb13f

include/message.h

@@ -185,6 +185,73 @@ struct PACKED GimbalCtrlSpeedReq
     struct Footer footer;
 };
 
+struct PACKED GimbalActionPush {
+    struct Header header;
+    uint8_t id;
+    uint8_t progress;
+    uint8_t state;
+    int16_t yaw;
+    int16_t roll;
+    int16_t pitch;
+};
+
+struct PACKED GimbalRotateReq {
+    struct Header header;
+    uint8_t id;
+
+    //union {
+        uint8_t control_bitfield;
+    //    struct {
+    //        // always 0 for start
+    //        uint8_t control : 1;
+    //        uint8_t frequency : 2;
+    //    };
+    //};
+
+    //union {
+        uint8_t coord_bitfield;
+    //    struct {
+    //        uint8_t coordinate : 3;
+    //        // always true
+    //        uint8_t pitch_valid : 1;
+    //        // always false
+    //        uint8_t roll_valid : 1;
+    //        // always true
+    //        uint8_t yaw_valid : 1;
+    //    };
+    //};
+
+    union {
+        int16_t yaw;
+        struct {
+            int8_t l_yaw;
+            int8_t h_yaw;
+        };
+    };
+    int16_t roll;
+    union {
+        int16_t pitch;
+        struct {
+            int8_t l_pitch;
+            int8_t h_pitch;
+        };
+    };
+
+    uint16_t error;
+    uint16_t yaw_speed;
+    uint16_t roll_speed;
+    uint16_t pitch_speed;
+
+    struct Footer footer;
+};
+
+struct PACKED GimbalRotateResp {
+    struct Header header;
+    uint8_t retcode;
+    uint8_t accept;
+    struct Footer footer;
+};
+
 struct PACKED GimbalCtrlSpeedResp
 {
     struct Header header;
@@ -339,6 +406,7 @@ union Request {
     struct SubNodeResetReq subnodereset;
     struct SubscribeAddNodeReq subnodeadd;
     struct GimbalCtrlSpeedReq gimbspeed;
+    struct GimbalRotateReq gimbalrot;
     struct BlasterFireReq blaster;
     struct StreamCtrlReq stream;
     struct AddSubMsgReq sub;
@@ -356,10 +424,12 @@ union Response {
     struct SubNodeResetResp subnodereset;
     struct SubscribeAddNodeResp subnodeadd;
     struct GimbalCtrlSpeedResp gimbspeed;
+    struct GimbalRotateResp gimbalrot;
     struct BlasterFireResp blaster;
     struct StreamCtrlResp stream;
     struct AddSubMsgResp sub;
     struct PushPeriodMsg push;
+    struct GimbalActionPush gimbalaction;
 };
 union Message {
     struct Header header;

include/roboeasy.h

@@ -42,6 +42,9 @@ int robot_stop(Robot robot);
  */
 int robot_aim(Robot, float p, float y);
 
+int robot_target(Robot robot, float pitch, float yaw);
+int robot_target_to(Robot robot, float pitch, float yaw);
+
 /*
  * Set the velocity of the robot chassis. A packet will be sent to the robot on
  * the next ready tick of the work function.

src/connection.c

@@ -36,6 +36,8 @@ message_length(int cmd) {
             return sizeof(struct ChassisSpeedModeReq);
         case GIMBAL_CTRL_SPEED_CMD:
             return sizeof(struct GimbalCtrlSpeedReq);
+        case GIMBAL_ROTATE_CMD:
+            return sizeof(struct GimbalRotateReq);
         case BLASTER_FIRE_CMD:
             return sizeof(struct BlasterFireReq);
         case STREAM_CTRL_CMD:
@@ -65,6 +67,7 @@ message_module(int cmd) {
         case CHASSIS_SPEED_MODE_CMD:
             return host2byte(CHASSIS_HOST, CHASSIS_INDEX);
         case GIMBAL_CTRL_SPEED_CMD:
+        case GIMBAL_ROTATE_CMD:
             return host2byte(GIMBAL_HOST, GIMBAL_INDEX);
         case BLASTER_FIRE_CMD:
             return host2byte(BLASTER_HOST, BLASTER_INDEX);

src/modules/gimbal.c

@@ -16,3 +16,67 @@ gimbal_ctrl_speed (
     req->gimbspeed.ctrl = 0xDC;
     req_finalize(seq, GIMBAL_CTRL_SPEED_CMD, ack, req);
 }
+
+void
+gimbal_rotate (
+		union Request* req,
+        uint16_t seq,
+        bool ack,
+		int16_t p,
+		int16_t y ) {
+    //req->gimbalrot.coordinate = 1;
+    //req->gimbalrot.yaw_valid = 1;
+    //req->gimbalrot.pitch_valid = 1;
+    //req->gimbalrot.roll_valid = 0;
+    req->gimbalrot.coord_bitfield = 0;
+    req->gimbalrot.coord_bitfield = 1 | 0 << 1 | 1 << 2 | 1 << 3;
+
+    //req->gimbalrot.frequency = 2;
+    //req->gimbalrot.control = 0;
+    req->gimbalrot.control_bitfield = 0;
+    req->gimbalrot.control_bitfield = 0 | 1 << 2;
+
+    req->gimbalrot.id = 33;
+    req->gimbalrot.yaw = 0;
+    req->gimbalrot.yaw = y;// >> 8;//(y >> 8 | y << 8);
+    req->gimbalrot.roll = 0;
+    req->gimbalrot.pitch = 0;
+    req->gimbalrot.pitch = p;// >> 8;//(p >> 8 | y << 8);
+    req->gimbalrot.error = 0;
+    req->gimbalrot.yaw_speed = 30;
+    req->gimbalrot.roll_speed = 0;
+    req->gimbalrot.pitch_speed = 30;
+    req_finalize(seq, GIMBAL_ROTATE_CMD, ack, req);
+}
+
+void
+gimbal_rotate_to (
+		union Request* req,
+        uint16_t seq,
+        bool ack,
+		int16_t p,
+		int16_t y ) {
+    //req->gimbalrot.coordinate = 1;
+    //req->gimbalrot.yaw_valid = 1;
+    //req->gimbalrot.pitch_valid = 1;
+    //req->gimbalrot.roll_valid = 0;
+    req->gimbalrot.coord_bitfield = 0;
+    req->gimbalrot.coord_bitfield = 1 | 0 << 1 | 1 << 2 | 4 << 3;
+
+    //req->gimbalrot.frequency = 2;
+    //req->gimbalrot.control = 0;
+    req->gimbalrot.control_bitfield = 0;
+    req->gimbalrot.control_bitfield = 0 | 1 << 2;
+
+    req->gimbalrot.id = 33;
+    req->gimbalrot.yaw = 0;
+    req->gimbalrot.yaw = y;// >> 8;//(y >> 8 | y << 8);
+    req->gimbalrot.roll = 0;
+    req->gimbalrot.pitch = 0;
+    req->gimbalrot.pitch = p;// >> 8;//(p >> 8 | y << 8);
+    req->gimbalrot.error = 0;
+    req->gimbalrot.yaw_speed = 30;
+    req->gimbalrot.roll_speed = 0;
+    req->gimbalrot.pitch_speed = 30;
+    req_finalize(seq, GIMBAL_ROTATE_CMD, ack, req);
+}

src/robo.c

@@ -5,6 +5,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <arpa/inet.h>
+#include <math.h>
 
 #include <stdio.h>
 
@@ -35,6 +36,11 @@ struct RobotImp {
     uint16_t pitch_ground;
     uint16_t yaw;
     uint16_t pitch;
+    enum {
+        TARGET_NONE,
+        TARGET_REL,
+        TARGET_ABS
+    } dirty_target;
 
     enum {
         CONNECTING_TO_PROXY_PORT,
@@ -87,6 +93,44 @@ robot_aim(Robot robot, float p, float y) {
     return 1;
 }
 
+int
+robot_target(Robot robot, float pitch, float yaw) {
+    // Get the FOV angle of the point in radians
+    float FOV = 120 * (M_PI / 180);
+    yaw = yaw * (FOV / 2);
+    pitch = pitch * (FOV / 2);
+
+    // Convert to degrees
+    yaw = yaw * (180 / M_PI);
+    pitch = pitch * (180 / M_PI);
+
+    // Convert for Robomaster
+    robot->yaw = yaw * 10;
+    robot->pitch = -pitch * 10;
+
+    robot->dirty_target = TARGET_REL;
+    return 1;
+};
+
+int
+robot_target_to(Robot robot, float pitch, float yaw) {
+    // Get the FOV angle of the point in radians
+    float FOV = 120 * (M_PI / 180);
+    yaw = yaw * (FOV / 2);
+    pitch = pitch * (FOV / 2);
+
+    // Convert to degrees
+    yaw = yaw * (180 / M_PI);
+    pitch = pitch * (180 / M_PI);
+
+    // Convert for Robomaster
+    robot->yaw = yaw * 10;
+    robot->pitch = -pitch * 10;
+
+    robot->dirty_target = TARGET_ABS;
+    return 1;
+};
+
 int
 robot_led(Robot robot, unsigned char r, unsigned char g, unsigned char b) {
     robot->colors[0] = r;
@@ -219,6 +263,20 @@ robot_work(Robot robot) {
                 req_send(robot->client->dev_conn, &req);
                 robot->dirty_gimbal = false;
             }
+            if(robot->dirty_target) {
+                if(robot->dirty_target == TARGET_REL)
+                    gimbal_rotate (
+                            &req, robot->seq++, true,
+                            robot->pitch,
+                            robot->yaw );
+                else if(robot->dirty_target == TARGET_ABS)
+                    gimbal_rotate_to (
+                            &req, robot->seq++, true,
+                            robot->pitch,
+                            robot->yaw );
+                req_send(robot->client->dev_conn, &req);
+                robot->dirty_target = TARGET_NONE;
+            }
             if(robot->dirty_colors) {
                 set_system_led (
                         &req, robot->seq++, false,