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- /**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2021 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 <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();
- int read();
- 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();
- struct usart_dev *usart_device;
- private:
- uint8 tx_pin;
- uint8 rx_pin;
- };
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