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betaflight/src/main/interface/smartaudio_protocol.h
2018-04-22 09:22:46 +10:00

100 lines
3.5 KiB
C

/*
* This file is part of Cleanflight and Betaflight.
*
* Cleanflight and Betaflight are free software: you can redistribute
* this software and/or modify this software 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 and Betaflight are distributed in the hope that they
* 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 this software.
*
* If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "drivers/serial.h"
#define SMARTAUDIO_SERIAL_OPTIONS SERIAL_NOT_INVERTED | SERIAL_BIDIR_NOPULL | SERIAL_STOPBITS_2
#define SMARTAUDIO_DEFAULT_BAUD 4900
#define SMARTAUDIO_MIN_BAUD 4800
#define SMARTAUDIO_MAX_BAUD 4950
typedef struct smartaudioSettings_s {
uint8_t version;
uint8_t unlocked;
uint8_t channel;
uint8_t power;
uint16_t frequency;
uint16_t pitmodeFrequency;
bool userFrequencyMode;
bool pitmodeEnabled;
bool pitmodeInRangeActive;
bool pitmodeOutRangeActive;
} smartaudioSettings_t;
typedef struct smartaudioFrameHeader_s {
uint16_t startCode;
uint8_t length;
uint8_t command;
} __attribute__((packed)) smartaudioFrameHeader_t;
typedef struct smartaudioCommandOnlyFrame_s {
smartaudioFrameHeader_t header;
uint8_t crc;
} __attribute__((packed)) smartaudioCommandOnlyFrame_t;
typedef struct smartaudioU8Frame_s {
smartaudioFrameHeader_t header;
uint8_t payload;
uint8_t crc;
} __attribute__((packed)) smartaudioU8Frame_t;
typedef struct smartaudioU16Frame_s {
smartaudioFrameHeader_t header;
uint16_t payload;
uint8_t crc;
} __attribute__((packed)) smartaudioU16Frame_t;
typedef struct smartaudioU8ResponseFrame_s {
smartaudioFrameHeader_t header;
uint8_t payload;
uint8_t reserved;
uint8_t crc;
} __attribute__((packed)) smartaudioU8ResponseFrame_t;
typedef struct smartaudioU16ResponseFrame_s {
smartaudioFrameHeader_t header;
uint16_t payload;
uint8_t reserved;
uint8_t crc;
} __attribute__((packed)) smartaudioU16ResponseFrame_t;
typedef struct smartaudioSettingsResponseFrame_s {
smartaudioFrameHeader_t header;
uint8_t channel;
uint8_t power;
uint8_t operationMode;
uint16_t frequency;
uint8_t crc;
} __attribute__((packed)) smartaudioSettingsResponseFrame_t;
typedef union smartaudioFrame_u {
smartaudioCommandOnlyFrame_t commandOnlyFrame;
smartaudioU8Frame_t u8RequestFrame;
smartaudioU16Frame_t u16RequestFrame;
} __attribute__((packed)) smartaudioFrame_t;
size_t smartaudioFrameGetSettings(smartaudioFrame_t *smartaudioFrame);
size_t smartaudioFrameGetPitmodeFrequency(smartaudioFrame_t *smartaudioFrame);
size_t smartaudioFrameSetPower(smartaudioFrame_t *smartaudioFrame, const uint8_t power);
size_t smartaudioFrameSetBandChannel(smartaudioFrame_t *smartaudioFrame, const uint8_t band, const uint8_t channel);
size_t smartaudioFrameSetFrequency(smartaudioFrame_t *smartaudioFrame, const uint16_t frequency, const bool pitmodeFrequency);
size_t smartaudioFrameSetOperationMode(smartaudioFrame_t *smartaudioFrame, const smartaudioSettings_t *settings);
bool smartaudioParseResponseBuffer(smartaudioSettings_t *settings, const uint8_t *buffer);