VTX abstraction (experimental)

src/main/drivers/vtx_common.h

@@ -0,0 +1,82 @@
+/*
+ * 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/>.
+ */
+
+/* Created by jflyper */
+
+typedef enum {
+    VTXDEV_UNKNOWN    = 0,
+    VTXDEV_SMARTAUDIO = 3,
+    VTXDEV_TRAMP      = 4,
+} vtxDevType_e;
+
+struct vtxVTable_s;
+
+typedef struct vtxDevice_s {
+    const struct vtxVTable_s *vTable;
+
+    vtxDevType_e devtype;      // 3.1 only; eventually goes away
+
+    uint8_t numBand;
+    uint8_t numChan;
+    uint8_t numPower;
+
+    uint16_t *freqTable;  // Array of [numBand][numChan]
+    char **bandNames;    // char *bandNames[numBand]
+    char **chanNames;    // char *chanNames[numChan]
+    char **powerNames;   // char *powerNames[numPower]
+
+    uint8_t curBand;
+    uint8_t curChan;
+    uint8_t curPowerIndex;
+    uint8_t curPitState; // 0 = non-PIT, 1 = PIT
+
+} vtxDevice_t;
+
+// {set,get}BandChan: band and chan are 1 origin
+// {set,get}PowerByIndex: 0 = Power OFF, 1 = device dependent
+// {set,get}Pitmode: 0 = OFF, 1 = ON
+
+typedef struct vtxVTable_s {
+    vtxDevType_e (*getDeviceType)(void);
+    bool (*isReady)(void);
+
+    void (*setBandChan)(uint8_t band, uint8_t chan);
+    void (*setPowerByIndex)(uint8_t level);
+    void (*setPitmode)(uint8_t onoff);
+
+    bool (*getBandChan)(uint8_t *pBand, uint8_t *pChan);
+    bool (*getPowerIndex)(uint8_t *pIndex);
+    bool (*getPitmode)(uint8_t *pOnoff);
+} vtxVTable_t;
+
+// 3.1.0
+// PIT mode is defined as LOWEST POSSIBLE RF POWER.
+// - It can be a dedicated mode, or lowest RF power possible.
+// - It is *NOT* RF on/off control ?
+
+void vtxCommonInit(void);
+void vtxCommonRegisterDevice(vtxDevice_t *pDevice);
+
+uint8_t vtxCommonGetDeviceType(void);
+void vtxCommonSetBandChan(uint8_t band, uint8_t chan);
+void vtxCommonSetPowerByIndex(uint8_t level);
+void vtxCommonSetPitmode(uint8_t onoff);
+bool vtxCommonGetBandChan(uint8_t *pBand, uint8_t *pChan);
+bool vtxCommonGetPowerIndex(uint8_t *pIndex);
+bool vtxCommonGetPitmode(uint8_t *pOnoff);
+
+bool vtx58_Freq2Bandchan(uint16_t freq, uint8_t *pBand, uint8_t *pChan);