114 lines
2.6 KiB
C
114 lines
2.6 KiB
C
/*
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* usbcdc_hw.h
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*
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* Created on: Jun 19, 2023
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* Author: Doug
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*
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* Copyright (C) 2011-2023 Doug Brown
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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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* Portions of this code also came from Nuvoton's BSP, originally
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* licensed as Apache-2.0:
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* @copyright (C) 2019 Nuvoton Technology Corp. All rights reserved.
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*
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*/
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#ifndef HAL_M258KE_USBCDC_HW_H_
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#define HAL_M258KE_USBCDC_HW_H_
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#include <stdint.h>
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#include <stdbool.h>
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#include "nuvoton/NuMicro.h"
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#include "nuvoton/usbd.h"
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/// Maximum packet sizes of each endpoint
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#define EP0_MAX_PKT_SIZE 64
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#define EP1_MAX_PKT_SIZE 64
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#define EP2_MAX_PKT_SIZE 8
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#define EP3_MAX_PKT_SIZE 64
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#define EP4_MAX_PKT_SIZE 64
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/// Assigned endpoint numbers for CDC serial port
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#define INT_IN_EP_NUM 2
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#define BULK_IN_EP_NUM 3
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#define BULK_OUT_EP_NUM 4
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/** Initializes the USB CDC serial port
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*
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*/
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void USBCDC_Init(void);
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/** Disconnects the USB CDC device from the host
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*
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*/
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static inline void USBCDC_Disable(void)
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{
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USBD_SET_SE0();
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}
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/** Performs any necessary periodic tasks for the USB CDC serial port
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*
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*/
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void USBCDC_Check(void);
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/** Sends a byte out the USB serial port
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*
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* @param b The byte
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*/
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void USBCDC_SendByte(uint8_t b);
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/** Sends a block of data over the USB CDC serial port
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*
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* @param data The data to send
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* @param len The number of bytes
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* @return True on success, false on failure
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*/
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static inline bool USBCDC_SendData(uint8_t const *data, uint16_t len)
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{
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while (len--)
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{
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USBCDC_SendByte(*data++);
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}
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return true;
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}
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/** Reads a byte from the USB serial port, if available
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*
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* @return The byte, or -1 if there is nothing available
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*/
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int16_t USBCDC_ReadByte(void);
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/** Reads a byte from the USB CDC serial port. Blocks until one is available.
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*
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* @return The byte read
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*/
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static inline uint8_t USBCDC_ReadByteBlocking(void)
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{
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int16_t b;
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do
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{
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b = USBCDC_ReadByte();
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} while (b < 0);
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return (uint8_t)b;
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}
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/** Flushes remaining data out to the USB serial port
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*
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*/
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void USBCDC_Flush(void);
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#endif /* HAL_M258KE_USBCDC_HW_H_ */
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