Add RTC6705 SPI VTX support

src/main/io/vtx.h

@@ -0,0 +1,40 @@
+/*
+ * 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 "drivers/vtx_rtc6705.h"
+
+#define VTX_BAND_MIN    						1
+#define VTX_BAND_MAX    						5
+#define VTX_CHANNEL_MIN 						1
+#define VTX_CHANNEL_MAX 						8
+#define MAX_CHANNEL_ACTIVATION_CONDITION_COUNT 	10
+
+typedef struct vtxChannelActivationCondition_s {
+    uint8_t auxChannelIndex;
+    uint8_t band;
+    uint8_t channel;
+    channelRange_t range;
+} vtxChannelActivationCondition_t;
+
+void vtxInit();
+void vtxIncrementBand();
+void vtxDecrementBand();
+void vtxIncrementChannel();
+void vtxDecrementChannel();
+void vtxUpdateActivatedChannel();