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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* 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/>.
*
*/
#if defined(ARDUINO_ARCH_STM32) && !defined(STM32GENERIC)
#include "../../inc/MarlinConfigPre.h"
#if ENABLED(EMERGENCY_PARSER) && USBD_USE_CDC
#include "usb_serial.h"
#include "../../feature/e_parser.h"
EmergencyParser::State emergency_state = EmergencyParser::State::EP_RESET;
int8_t (*USBD_CDC_Receive_original) (uint8_t *Buf, uint32_t *Len) = nullptr;
static int8_t USBD_CDC_Receive_hook(uint8_t *Buf, uint32_t *Len) {
for (uint32_t i = 0; i < *Len; i++)
emergency_parser.update(emergency_state, Buf[i]);
return USBD_CDC_Receive_original(Buf, Len);
}
typedef struct _USBD_CDC_Itf {
int8_t (* Init)(void);
int8_t (* DeInit)(void);
int8_t (* Control)(uint8_t cmd, uint8_t *pbuf, uint16_t length);
int8_t (* Receive)(uint8_t *Buf, uint32_t *Len);
int8_t (* Transferred)(void);
} USBD_CDC_ItfTypeDef;
extern USBD_CDC_ItfTypeDef USBD_CDC_fops;
void USB_Hook_init() {
USBD_CDC_Receive_original = USBD_CDC_fops.Receive;
USBD_CDC_fops.Receive = USBD_CDC_Receive_hook;
}
#endif // EMERGENCY_PARSER && USBD_USE_CDC
#endif // ARDUINO_ARCH_STM32 && !STM32GENERIC
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