146 lines
3.9 KiB
C++
146 lines
3.9 KiB
C++
/**
|
|
* 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/>.
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* MarlinSerial_Due.cpp - Hardware serial library for Arduino DUE
|
|
* Copyright (c) 2017 Eduardo José Tagle. All right reserved
|
|
* Based on MarlinSerial for AVR, copyright (c) 2006 Nicholas Zambetti. All right reserved.
|
|
*/
|
|
#ifdef ARDUINO_ARCH_SAM
|
|
|
|
#include "../../inc/MarlinConfig.h"
|
|
|
|
#if HAS_USB_SERIAL
|
|
|
|
#include "MarlinSerialUSB.h"
|
|
|
|
#if ENABLED(EMERGENCY_PARSER)
|
|
#include "../../feature/e_parser.h"
|
|
#endif
|
|
|
|
// Imports from Atmel USB Stack/CDC implementation
|
|
extern "C" {
|
|
bool usb_task_cdc_isenabled();
|
|
bool usb_task_cdc_dtr_active();
|
|
bool udi_cdc_is_rx_ready();
|
|
int udi_cdc_getc();
|
|
bool udi_cdc_is_tx_ready();
|
|
int udi_cdc_putc(int value);
|
|
};
|
|
|
|
// Pending character
|
|
static int pending_char = -1;
|
|
|
|
// Public Methods
|
|
void MarlinSerialUSB::begin(const long) {}
|
|
|
|
void MarlinSerialUSB::end() {}
|
|
|
|
int MarlinSerialUSB::peek() {
|
|
if (pending_char >= 0)
|
|
return pending_char;
|
|
|
|
// If USB CDC not enumerated or not configured on the PC side
|
|
if (!usb_task_cdc_isenabled())
|
|
return -1;
|
|
|
|
// If no bytes sent from the PC
|
|
if (!udi_cdc_is_rx_ready())
|
|
return -1;
|
|
|
|
pending_char = udi_cdc_getc();
|
|
|
|
TERN_(EMERGENCY_PARSER, emergency_parser.update(emergency_state, (char)pending_char));
|
|
|
|
return pending_char;
|
|
}
|
|
|
|
int MarlinSerialUSB::read() {
|
|
if (pending_char >= 0) {
|
|
int ret = pending_char;
|
|
pending_char = -1;
|
|
return ret;
|
|
}
|
|
|
|
// If USB CDC not enumerated or not configured on the PC side
|
|
if (!usb_task_cdc_isenabled())
|
|
return -1;
|
|
|
|
// If no bytes sent from the PC
|
|
if (!udi_cdc_is_rx_ready())
|
|
return -1;
|
|
|
|
int c = udi_cdc_getc();
|
|
|
|
TERN_(EMERGENCY_PARSER, emergency_parser.update(emergency_state, (char)c));
|
|
|
|
return c;
|
|
}
|
|
|
|
bool MarlinSerialUSB::available() {
|
|
/* If Pending chars */
|
|
return pending_char >= 0 ||
|
|
/* or USB CDC enumerated and configured on the PC side and some
|
|
bytes where sent to us */
|
|
(usb_task_cdc_isenabled() && udi_cdc_is_rx_ready());
|
|
}
|
|
|
|
void MarlinSerialUSB::flush() { }
|
|
void MarlinSerialUSB::flushTX() { }
|
|
|
|
size_t MarlinSerialUSB::write(const uint8_t c) {
|
|
|
|
/* Do not even bother sending anything if USB CDC is not enumerated
|
|
or not configured on the PC side or there is no program on the PC
|
|
listening to our messages */
|
|
if (!usb_task_cdc_isenabled() || !usb_task_cdc_dtr_active())
|
|
return 0;
|
|
|
|
/* Wait until the PC has read the pending to be sent data */
|
|
while (usb_task_cdc_isenabled() &&
|
|
usb_task_cdc_dtr_active() &&
|
|
!udi_cdc_is_tx_ready()) {
|
|
};
|
|
|
|
/* Do not even bother sending anything if USB CDC is not enumerated
|
|
or not configured on the PC side or there is no program on the PC
|
|
listening to our messages at this point */
|
|
if (!usb_task_cdc_isenabled() || !usb_task_cdc_dtr_active())
|
|
return 0;
|
|
|
|
// Fifo full
|
|
// udi_cdc_signal_overrun();
|
|
udi_cdc_putc(c);
|
|
return 1;
|
|
}
|
|
|
|
// Preinstantiate
|
|
#if SERIAL_PORT == -1
|
|
MSerialT customizedSerial1(TERN0(EMERGENCY_PARSER, true));
|
|
#endif
|
|
#if SERIAL_PORT_2 == -1
|
|
MSerialT customizedSerial2(TERN0(EMERGENCY_PARSER, true));
|
|
#endif
|
|
|
|
#endif // HAS_USB_SERIAL
|
|
#endif // ARDUINO_ARCH_SAM
|