Merge pull request #2852 from azolyoung/add-runcam-split-support

Add runcam split support

src/main/io/rcsplit.h

@@ -0,0 +1,56 @@
+/*
+ * 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
+
+#include <stdbool.h>
+#include "common/time.h"
+#include "fc/fc_msp.h"
+
+typedef struct {
+    uint8_t boxId;
+    bool isActivated;
+} rcsplit_switch_state_t;
+
+typedef enum {
+    RCSPLIT_STATE_UNKNOWN = 0,
+    RCSPLIT_STATE_INITIALIZING,
+    RCSPLIT_STATE_IS_READY,
+} rcsplit_state_e;
+
+// packet header and tail
+#define RCSPLIT_PACKET_HEADER           0x55
+#define RCSPLIT_PACKET_CMD_CTRL  0x01
+#define RCSPLIT_PACKET_TAIL     0xaa
+
+
+// the commands of RunCam Split serial protocol
+typedef enum {
+    RCSPLIT_CTRL_ARGU_INVALID = 0x0,
+    RCSPLIT_CTRL_ARGU_WIFI_BTN = 0x1,
+    RCSPLIT_CTRL_ARGU_POWER_BTN = 0x2,
+    RCSPLIT_CTRL_ARGU_CHANGE_MODE = 0x3,
+    RCSPLIT_CTRL_ARGU_WHO_ARE_YOU = 0xFF,
+} rcsplit_ctrl_argument_e;
+
+bool rcSplitInit(void);
+void rcSplitProcess(timeUs_t currentTimeUs);
+
+// only for unit test
+extern rcsplit_state_e cameraState;
+extern serialPort_t *rcSplitSerialPort;
+extern rcsplit_switch_state_t switchStates[BOXCAMERA3 - BOXCAMERA1 + 1];