91 lines
2.2 KiB
C
91 lines
2.2 KiB
C
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/**
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* FlipperDroid Bridge Protocol v0.1
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* Shared definitions between all source files.
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*/
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#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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/* Wire format: [MAGIC_HI][MAGIC_LO][LEN_HI][LEN_LO][CMD][PAYLOAD...][CRC8] */
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#define FD_MAGIC_HI 0xFD
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#define FD_MAGIC_LO 0x01
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#define FD_MAX_PAYLOAD 2048
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#define FD_VERSION "0.1.0"
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#define FD_DEVICE_NAME "FlipperDroid"
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/* ---- Commands (Phone -> Flipper) ---- */
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typedef enum {
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FdCmdPing = 0x01,
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FdCmdVersion = 0x02,
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FdCmdCapabilities = 0x03,
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FdCmdStatus = 0x04,
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FdCmdGpioInit = 0x10,
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FdCmdGpioWrite = 0x11,
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FdCmdGpioRead = 0x12,
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FdCmdGpioPwm = 0x13,
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FdCmdGpioAdcRead = 0x14,
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FdCmdSubghzSetFreq = 0x20,
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FdCmdSubghzTx = 0x21,
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FdCmdSubghzRxStart = 0x22,
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FdCmdSubghzRxStop = 0x23,
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FdCmdSubghzGetRssi = 0x24,
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FdCmdIrTx = 0x50,
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FdCmdIrTxRaw = 0x51,
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FdCmdIrRxStart = 0x52,
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FdCmdIrRxStop = 0x53,
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FdCmdFileList = 0x90,
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FdCmdFileRead = 0x91,
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FdCmdFileWrite = 0x92,
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FdCmdFileDelete = 0x93,
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} FdCommand;
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/* ---- Events (Flipper -> Phone, async push) ---- */
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typedef enum {
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FdEventGpioIrq = 0xA0,
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FdEventSubghzRx = 0xA1,
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FdEventIrRx = 0xA2,
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FdEventButton = 0xA4,
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FdEventCpuReq = 0xA5,
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} FdEvent;
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/* Response / Error */
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#define FD_RESP_OK 0xFE
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#define FD_RESP_ERR 0xFF
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typedef enum {
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FdErrUnknownCmd = 0x01,
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FdErrInvalidParams = 0x02,
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FdErrDisabled = 0x03,
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FdErrHardware = 0x04,
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FdErrBusy = 0x05,
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FdErrTimeout = 0x06,
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FdErrNotSupported = 0x07,
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} FdError;
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/* Capability bitmask reported by 0x03 */
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#define FD_CAP_GPIO (1 << 0)
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#define FD_CAP_SUBGHZ (1 << 1)
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#define FD_CAP_RFID (1 << 2)
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#define FD_CAP_NFC (1 << 3)
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#define FD_CAP_IR (1 << 4)
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#define FD_CAP_IBUTTON (1 << 5)
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#define FD_CAP_BADUSB (1 << 6)
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#define FD_CAP_CPU (1 << 7)
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/* CRC8 Dallas/Maxim 0x31 */
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static inline uint8_t fd_crc8(const uint8_t* data, uint16_t len) {
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uint8_t crc = 0;
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for(uint16_t i = 0; i < len; i++) {
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crc ^= data[i];
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for(uint8_t j = 0; j < 8; j++)
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crc = (crc & 0x80) ? ((crc << 1) ^ 0x31) : (crc << 1);
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}
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return crc;
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}
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