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357 lines
9.6 KiB
357 lines
9.6 KiB
/**
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* Marlin 3D Printer Firmware
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* Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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#include "../../../HAL/platforms.h"
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#ifdef HAL_STM32
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#include "../../../inc/MarlinConfigPre.h"
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#if BOTH(HAS_TFT_LVGL_UI, MKS_WIFI_MODULE)
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#include "tft_lvgl_configuration.h"
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#include "draw_ui.h"
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#include "wifiSerial.h"
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WifiSerial WifiSerial1(USART1);
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void WifiSerial::setRx(uint32_t _rx) { _serial.pin_rx = digitalPinToPinName(_rx); }
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void WifiSerial::setTx(uint32_t _tx) { _serial.pin_tx = digitalPinToPinName(_tx); }
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void WifiSerial::setRx(PinName _rx) { _serial.pin_rx = _rx; }
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void WifiSerial::setTx(PinName _tx) { _serial.pin_tx = _tx; }
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void WifiSerial::init(PinName _rx, PinName _tx) {
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_serial.pin_rx = (_rx == _tx) ? NC : _rx;
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_serial.pin_tx = _tx;
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_serial.rx_buff = wifiRxBuf;
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_serial.rx_head = 0;
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_serial.rx_tail = 0;
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_serial.tx_buff = wifiTxBuf;
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_serial.tx_head = 0;
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_serial.tx_tail = 0;
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}
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WifiSerial::WifiSerial(void *peripheral) {
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// If PIN_SERIALy_RX is not defined assume half-duplex
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_serial.pin_rx = NC;
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if (false) {
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// for else if / else below...
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}
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// If Serial is defined in variant set
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// the Rx/Tx pins for com port if defined
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#if defined(Serial) && defined(PIN_SERIAL_TX)
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else if ((void *)this == (void *)&Serial) {
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#ifdef PIN_SERIAL_RX
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setRx(PIN_SERIAL_RX);
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#endif
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setTx(PIN_SERIAL_TX);
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}
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#endif
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#if defined(PIN_SERIAL1_TX) && defined(USART1_BASE)
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else if (peripheral == USART1) {
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#ifdef PIN_SERIAL1_RX
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setRx(PIN_SERIAL1_RX);
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#endif
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setTx(PIN_SERIAL1_TX);
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}
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#endif
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#if defined(PIN_SERIAL2_TX) && defined(USART2_BASE)
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else if (peripheral == USART2) {
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#ifdef PIN_SERIAL2_RX
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setRx(PIN_SERIAL2_RX);
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#endif
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setTx(PIN_SERIAL2_TX);
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}
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#endif
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#if defined(PIN_SERIAL3_TX) && defined(USART3_BASE)
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else if (peripheral == USART3) {
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#ifdef PIN_SERIAL3_RX
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setRx(PIN_SERIAL3_RX);
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#endif
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setTx(PIN_SERIAL3_TX);
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}
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#endif
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#ifdef PIN_SERIAL4_TX
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else if (false
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#ifdef USART4_BASE
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|| peripheral == USART4
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#elif defined(UART4_BASE)
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|| peripheral == UART4
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#endif
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) {
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#ifdef PIN_SERIAL4_RX
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setRx(PIN_SERIAL4_RX);
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#endif
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setTx(PIN_SERIAL4_TX);
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}
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#endif
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#ifdef PIN_SERIAL5_TX
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else if (false
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#ifdef USART5_BASE
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|| peripheral == USART5
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#elif defined(UART5_BASE)
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|| peripheral == UART5
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#endif
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) {
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#ifdef PIN_SERIAL5_RX
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setRx(PIN_SERIAL5_RX);
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#endif
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setTx(PIN_SERIAL5_TX);
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}
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#endif
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#if defined(PIN_SERIAL6_TX) && defined(USART6_BASE)
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else if (peripheral == USART6) {
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#ifdef PIN_SERIAL6_RX
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setRx(PIN_SERIAL6_RX);
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#endif
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setTx(PIN_SERIAL6_TX);
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}
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#endif
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#ifdef PIN_SERIAL7_TX
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else if (false
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#ifdef USART7_BASE
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|| peripheral == USART7
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#elif defined(UART7_BASE)
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|| peripheral == UART7
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#endif
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) {
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#ifdef PIN_SERIAL7_RX
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setRx(PIN_SERIAL7_RX);
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#endif
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setTx(PIN_SERIAL7_TX);
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}
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#endif
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#ifdef PIN_SERIAL8_TX
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else if (false
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#ifdef USART8_BASE
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|| peripheral == USART8
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#elif defined(UART8_BASE)
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|| peripheral == UART8
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#endif
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) {
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#ifdef PIN_SERIAL8_RX
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setRx(PIN_SERIAL8_RX);
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#endif
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setTx(PIN_SERIAL8_TX);
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}
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#endif
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#if defined(PIN_SERIAL9_TX) && defined(UART9_BASE)
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else if (peripheral == UART9) {
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#ifdef PIN_SERIAL9_RX
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setRx(PIN_SERIAL9_RX);
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#endif
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setTx(PIN_SERIAL9_TX);
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}
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#endif
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#ifdef PIN_SERIAL10_TX
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else if (false
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#ifdef USART10_BASE
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|| peripheral == USART10
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#elif defined(UART10_BASE)
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|| peripheral == UART10
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#endif
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) {
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#ifdef PIN_SERIAL10_RX
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setRx(PIN_SERIAL10_RX);
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#endif
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setTx(PIN_SERIAL10_TX);
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}
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#endif
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#if defined(PIN_SERIALLP1_TX) && defined(LPUART1_BASE)
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else if (peripheral == LPUART1) {
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#ifdef PIN_SERIALLP1_RX
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setRx(PIN_SERIALLP1_RX);
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#endif
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setTx(PIN_SERIALLP1_TX);
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}
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#endif
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// else get the pins of the first peripheral occurrence in PinMap
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else {
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_serial.pin_rx = pinmap_pin(peripheral, PinMap_UART_RX);
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_serial.pin_tx = pinmap_pin(peripheral, PinMap_UART_TX);
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}
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//if (halfDuplex == HALF_DUPLEX_ENABLED) _serial.pin_rx = NC;
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init(_serial.pin_rx, _serial.pin_tx);
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}
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void WifiSerial::flush() {
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// If we have never written a byte, no need to flush. This special
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// case is needed since there is no way to force the TXC (transmit
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// complete) bit to 1 during initialization
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if (!_written) return;
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while ((_serial.tx_head != _serial.tx_tail)) {
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// nop, the interrupt handler will free up space for us
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}
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// If we get here, nothing is queued anymore (DRIE is disabled) and
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// the hardware finished transmission (TXC is set).
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}
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bool WifiSerial::isHalfDuplex() const { return _serial.pin_rx == NC; }
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void WifiSerial::enableHalfDuplexRx() {
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if (isHalfDuplex()) {
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// In half-duplex mode we have to wait for all TX characters to
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// be transmitted before we can receive data.
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flush();
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if (!_rx_enabled) {
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_rx_enabled = true;
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uart_enable_rx(&_serial);
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}
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}
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}
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// Actual interrupt handlers //////////////////////////////////////////////////////////////
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void WifiSerial::_rx_complete_irq(serial_t *obj) {
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// No Parity error, read byte and store it in the buffer if there is room
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unsigned char c;
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if (uart_getc(obj, &c) == 0) {
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WRITE(WIFI_IO1_PIN, HIGH);
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rx_buffer_index_t i = (unsigned int)(obj->rx_head + 1) % WIFI_RX_BUF_SIZE;
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// if we should be storing the received character into the location
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// just before the tail (meaning that the head would advance to the
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// current location of the tail), we're about to overflow the buffer
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// and so we don't write the character or advance the head.
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if (i != obj->rx_tail) {
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obj->rx_buff[obj->rx_head] = c;
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obj->rx_head = i;
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}
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}
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}
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// Actual interrupt handlers //////////////////////////////////////////////////////////////
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int WifiSerial::_tx_complete_irq(serial_t *obj) {
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// If interrupts are enabled, there must be more data in the output
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// buffer. Send the next byte
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obj->tx_tail = (obj->tx_tail + 1) % WIFI_TX_BUF_SIZE;
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return (obj->tx_head == obj->tx_tail) ? -1 : 0;
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}
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void WifiSerial::begin(unsigned long baud) { begin(baud, SERIAL_8N1); }
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void WifiSerial::begin(unsigned long baud, byte config) {
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uint32_t databits = 0, stopbits = 0, parity = 0;
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_baud = baud;
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_config = config;
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// Manage databits
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switch (config & 0x07) {
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case 0x02: databits = 6; break;
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case 0x04: databits = 7; break;
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case 0x06: databits = 8; break;
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default: databits = 0; break;
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}
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if ((config & 0x30) == 0x30) {
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parity = UART_PARITY_ODD;
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databits++;
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}
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else if ((config & 0x20) == 0x20) {
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parity = UART_PARITY_EVEN;
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databits++;
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}
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else
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parity = UART_PARITY_NONE;
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stopbits = ((config & 0x08) == 0x08) ? UART_STOPBITS_2 : UART_STOPBITS_1;
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switch (databits) {
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#ifdef UART_WORDLENGTH_7B
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case 7: databits = UART_WORDLENGTH_7B; break;
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#endif
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case 8: databits = UART_WORDLENGTH_8B; break;
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case 9: databits = UART_WORDLENGTH_9B; break;
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default:
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case 0: Error_Handler(); break;
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}
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uart_init(&_serial, (uint32_t)baud, databits, parity, stopbits);
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enableHalfDuplexRx();
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if (baud == WIFI_BAUDRATE)
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uart_attach_rx_callback(&_serial, _rx_complete_irq);
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else
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USART1->CR1 |= USART_CR1_RE; // Preserve word length, etc. Use 'or' to preserve USART_CR1_M_8N1
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}
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void WifiSerial::end() {
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// wait for transmission of outgoing data
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flush();
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uart_deinit(&_serial);
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// clear any received data
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_serial.rx_head = _serial.rx_tail;
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}
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int WifiSerial::available() {
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return ((unsigned int)(WIFI_RX_BUF_SIZE + _serial.rx_head - _serial.rx_tail)) % WIFI_RX_BUF_SIZE;
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}
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//
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// I/O
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//
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int WifiSerial::read() {
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enableHalfDuplexRx();
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// if the head isn't ahead of the tail, we don't have any characters
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if (_serial.rx_head == _serial.rx_tail) return -1;
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unsigned char c = _serial.rx_buff[_serial.rx_tail];
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_serial.rx_tail = (rx_buffer_index_t)(_serial.rx_tail + 1) % WIFI_RX_BUF_SIZE;
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return c;
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}
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int WifiSerial::write(uint8_t c) {
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_written = true;
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if (isHalfDuplex()) {
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if (_rx_enabled) {
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_rx_enabled = false;
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uart_enable_tx(&_serial);
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}
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}
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tx_buffer_index_t i = (_serial.tx_head + 1) % WIFI_TX_BUF_SIZE;
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// If the output buffer is full, there's nothing for it other than to
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// wait for the interrupt handler to empty it a bit
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while (i == _serial.tx_tail) {
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// nop, the interrupt handler will free up space for us
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}
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_serial.tx_buff[_serial.tx_head] = c;
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_serial.tx_head = i;
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if (!serial_tx_active(&_serial))
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uart_attach_tx_callback(&_serial, _tx_complete_irq);
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return 1;
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}
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#endif // HAS_TFT_LVGL_UI && MKS_WIFI_MODULE
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#endif // HAL_STM32
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