mirror of https://github.com/jeelabs/esp-link.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
2.3 KiB
91 lines
2.3 KiB
#ifndef ESP_LINK_H
|
|
#define ESP_LINK_H
|
|
|
|
#include <inttypes.h>
|
|
#include <Stream.h>
|
|
|
|
typedef struct __attribute__((__packed__)) {
|
|
uint16_t len; // length of data
|
|
uint8_t data[0]; // really data[len]
|
|
} CmdArg;
|
|
|
|
typedef struct __attribute__((__packed__)) {
|
|
uint16_t cmd; // command to perform, from CmdName enum
|
|
uint16_t argc; // number of arguments to command
|
|
uint32_t value; // callback pointer for response or first argument
|
|
CmdArg args[0]; // really args[argc]
|
|
} CmdPacket;
|
|
|
|
typedef struct {
|
|
CmdPacket *cmd; // command packet header
|
|
uint32_t arg_num; // number of args parsed
|
|
uint8_t *arg_ptr; // pointer to ??
|
|
} CmdRequest;
|
|
|
|
typedef void (* CmdRequestCB)(CmdRequest *);
|
|
|
|
typedef enum {
|
|
CMD_NULL = 0,
|
|
CMD_SYNC, // synchronize and clear
|
|
CMD_RESP_V, // response with a value
|
|
CMD_RESP_CB, // response with a callback
|
|
CMD_WIFI_STATUS, // get the current wifi status
|
|
CMD_CB_ADD,
|
|
CMD_CB_EVENTS,
|
|
CMD_GET_TIME, // get current time in seconds since the unix epoch
|
|
|
|
CMD_MQTT_SETUP = 10, // set-up callbacks
|
|
CMD_MQTT_PUBLISH, // publish a message
|
|
CMD_MQTT_SUBSCRIBE, // subscribe to a topic
|
|
CMD_MQTT_LWT, // set the last-will-topic and messge
|
|
|
|
CMD_REST_SETUP = 20,
|
|
CMD_REST_REQUEST,
|
|
CMD_REST_SETHEADER,
|
|
|
|
CMD_WEB_DATA = 30,
|
|
CMD_WEB_REQ_CB,
|
|
} CmdName;
|
|
|
|
typedef enum
|
|
{
|
|
WAIT_FOR_SLIP_START,
|
|
READ_SLIP_PACKAGE,
|
|
} ReadState;
|
|
|
|
class EspLink
|
|
{
|
|
private:
|
|
uint16_t crc16_out;
|
|
Stream &stream;
|
|
ReadState readState;
|
|
uint8_t * readBuf;
|
|
uint16_t readBufPtr;
|
|
uint16_t readBufMax;
|
|
int readLastChar;
|
|
CmdRequestCB requestCb;
|
|
|
|
void crc16_add(uint8_t b, uint16_t *crc);
|
|
void writeChar(uint8_t chr);
|
|
void writeBuf(uint8_t * buf, uint16_t len);
|
|
void checkPacket();
|
|
void parseSlipPacket();
|
|
|
|
public:
|
|
EspLink(Stream &stream, CmdRequestCB callback);
|
|
~EspLink();
|
|
|
|
void sendPacketStart(uint16_t cmd, uint32_t value, uint16_t argc);
|
|
void sendPacketArg(uint16_t len, uint8_t * data);
|
|
void sendPacketEnd();
|
|
|
|
void readLoop();
|
|
|
|
uint32_t cmdGetArgc(CmdRequest *req);
|
|
int32_t cmdPopArg(CmdRequest *req, void *data, uint16_t len);
|
|
void cmdSkipArg(CmdRequest *req);
|
|
uint16_t cmdArgLen(CmdRequest *req);
|
|
};
|
|
|
|
#endif /* ESP_LINK_H */
|
|
|
|
|