#ifndef _CH9120_H_
#define _CH9120_H_

#include <stdlib.h>
#include <stdio.h>
#include "pico/stdlib.h"
#include "hardware/uart.h"
#include "hardware/irq.h"

#define UART_ID1 uart1
#define INIT_BAUD_RATE 9600
#define TRANSPORT_BAUD_RATE 115200
#define DATA_BITS 8
#define STOP_BITS 1
#define PARITY UART_PARITY_NONE

#define UART_TX_PIN1 20
#define UART_RX_PIN1 21

#define CFG_PIN 18
#define RES_PIN 19

#define TCP_SERVER 0
#define TCP_CLIENT 1
#define UDP_SERVER 2
#define UDP_CLIENT 3

#define Mode1 0x10
#define LOCAL_IP 0x11
#define SUBNET_MASK 0x12
#define GATEWAY 0x13
#define LOCAL_PORT1 0X14
#define TARGET_IP1 0x15
#define TARGET_PORT1 0x16
#define UART1_BAUD1 0x21

void CH9120_init(void);
void CH9120_send_data(const char *data, size_t len);
int CH9120_receive_data(char *buffer, size_t max_len);
void CH9120_process(void);

#endif