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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program 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.
*
* This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
#include "tft_lvgl_configuration.h"
#if ENABLED(MKS_WIFI_MODULE)
#ifdef SERIAL_PORT_2
#error "SERIAL_PORT_2 must be disabled with TFT_LVGL_UI* and MKS_WIFI_MODULE."
#endif
#define WIFI_BAUDRATE 115200
#define WIFI_UPLOAD_BAUDRATE 1958400
#define USART_SAFE_INSERT
#define WIFI_RX_BUF_SIZE (1024)
#define WIFI_TX_BUF_SIZE (64)
#ifdef __STM32F1__
#include <libmaple/libmaple_types.h>
#include <libmaple/usart.h>
#include <libmaple/libmaple.h>
#include <libmaple/gpio.h>
#include <libmaple/timer.h>
#include <libmaple/ring_buffer.h>
#define DEFINE_WFSERIAL(name, n)\
WifiSerial name(USART##n, \
BOARD_USART##n##_TX_PIN, \
BOARD_USART##n##_RX_PIN)
class WifiSerial {
public:
uint8 wifiRxBuf[WIFI_RX_BUF_SIZE];
public:
WifiSerial(struct usart_dev *usart_device, uint8 tx_pin, uint8 rx_pin);
/* Set up/tear down */
void begin(uint32 baud);
void begin(uint32 baud,uint8_t config);
void end();
int available(void);
int read(void);
int write(uint8_t);
inline void wifi_usart_irq(usart_reg_map *regs) {
/* Handling RXNEIE and TXEIE interrupts.
* RXNE signifies availability of a byte in DR.
*
* See table 198 (sec 27.4, p809) in STM document RM0008 rev 15.
* We enable RXNEIE.
*/
if ((regs->CR1 & USART_CR1_RXNEIE) && (regs->SR & USART_SR_RXNE)) {
#ifdef USART_SAFE_INSERT
/* If the buffer is full and the user defines USART_SAFE_INSERT,
* ignore new bytes. */
rb_safe_insert(this->usart_device->rb, (uint8)regs->DR);
#else
/* By default, push bytes around in the ring buffer. */
rb_push_insert(this->usart_device->rb, (uint8)regs->DR);
#endif
}
/* TXE signifies readiness to send a byte to DR. */
if ((regs->CR1 & USART_CR1_TXEIE) && (regs->SR & USART_SR_TXE)) {
if (!rb_is_empty(this->usart_device->wb))
regs->DR=rb_remove(this->usart_device->wb);
else
regs->CR1 &= ~((uint32)USART_CR1_TXEIE); // disable TXEIE
}
}
int wifi_rb_is_full(void);
struct usart_dev *usart_device;
private:
uint8 tx_pin;
uint8 rx_pin;
};
extern WifiSerial WifiSerial1;
#define WIFISERIAL WifiSerial1
#else
#include <inttypes.h>
#include "Stream.h"
#include "uart.h"
class WifiSerial {
protected:
// Has any byte been written to the UART since begin()
bool _written;
serial_t _serial;
public:
uint8_t wifiRxBuf[WIFI_RX_BUF_SIZE];
uint8_t wifiTxBuf[WIFI_TX_BUF_SIZE];
WifiSerial(void *peripheral);
/* Set up/tear down */
void begin(uint32_t baud);
void begin(uint32_t baud,uint8_t config);
void end();
int available(void);
int read(void);
int write(uint8_t);
// Interrupt handlers
static int _tx_complete_irq(serial_t *obj);
static void _rx_complete_irq(serial_t *obj);
void flush(void);
bool isHalfDuplex(void) const;
void enableHalfDuplexRx(void);
private:
void setRx(uint32_t _rx);
void setTx(uint32_t _tx);
void setRx(PinName _rx);
void setTx(PinName _tx);
void init(PinName _rx, PinName _tx);
bool _rx_enabled;
uint8_t _config;
unsigned long _baud;
};
extern WifiSerial WifiSerial1;
#define WIFISERIAL WifiSerial1
#endif // __STM32F1__
#endif // MKS_WIFI_MODULE
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