/* * 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 . */ #pragma once #include "msp/msp.h" // Each MSP port requires state and a receive buffer, revisit this default if someone needs more than 3 MSP ports. #define MAX_MSP_PORT_COUNT 3 typedef enum { MSP_IDLE, MSP_HEADER_START, MSP_HEADER_M, MSP_HEADER_ARROW, MSP_HEADER_SIZE, MSP_HEADER_CMD, MSP_COMMAND_RECEIVED } mspState_e; typedef enum { MSP_EVALUATE_NON_MSP_DATA, MSP_SKIP_NON_MSP_DATA } mspEvaluateNonMspData_e; #define MSP_PORT_INBUF_SIZE 192 #ifdef USE_FLASHFS #ifdef STM32F1 #define MSP_PORT_DATAFLASH_BUFFER_SIZE 1024 #else #define MSP_PORT_DATAFLASH_BUFFER_SIZE 4096 #endif #define MSP_PORT_DATAFLASH_INFO_SIZE 16 #define MSP_PORT_OUTBUF_SIZE (MSP_PORT_DATAFLASH_BUFFER_SIZE + MSP_PORT_DATAFLASH_INFO_SIZE) #else #define MSP_PORT_OUTBUF_SIZE 256 #endif struct serialPort_s; typedef struct mspPort_s { struct serialPort_s *port; // null when port unused. uint8_t offset; uint8_t dataSize; uint8_t checksum; uint8_t cmdMSP; mspState_e c_state; uint8_t inBuf[MSP_PORT_INBUF_SIZE]; } mspPort_t; void mspSerialInit(void); void mspSerialProcess(mspEvaluateNonMspData_e evaluateNonMspData, mspProcessCommandFnPtr mspProcessCommandFn); void mspSerialAllocatePorts(void); void mspSerialReleasePortIfAllocated(struct serialPort_s *serialPort); int mspSerialPush(uint8_t cmd, const uint8_t *data, int datalen); uint32_t mspSerialTxBytesFree(void);