Files
tinyUSB/src/class/cdc/serial/ch34x.h
2024-01-16 17:25:44 +07:00

61 lines
2.2 KiB
C

/*
* The MIT License (MIT)
*
* Copyright (c) 2023 Heiko Kuester
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* This file is part of the TinyUSB stack.
*/
#ifndef _CH34X_H_
#define _CH34X_H_
// set line_coding @ enumeration
#ifdef CFG_TUH_CDC_LINE_CODING_ON_ENUM
#define CFG_TUH_CDC_LINE_CODING_ON_ENUM_CH34X CFG_TUH_CDC_LINE_CODING_ON_ENUM
#else // this default is necessary to work properly
#define CFG_TUH_CDC_LINE_CODING_ON_ENUM_CH34X { 9600, CDC_LINE_CONDING_STOP_BITS_1, CDC_LINE_CODING_PARITY_NONE, 8 }
#endif
// USB requests
#define CH34X_REQ_READ_VERSION 0x5F // dec 95
#define CH34X_REQ_WRITE_REG 0x9A // dec 154
#define CH34X_REQ_READ_REG 0x95 // dec 149
#define CH34X_REQ_SERIAL_INIT 0xA1 // dec 161
#define CH34X_REQ_MODEM_CTRL 0xA4 // dev 164
// modem control bits
#define CH34X_BIT_RTS ( 1 << 6 )
#define CH34X_BIT_DTR ( 1 << 5 )
// line control bits
#define CH34X_LCR_ENABLE_RX 0x80
#define CH34X_LCR_ENABLE_TX 0x40
#define CH34X_LCR_MARK_SPACE 0x20
#define CH34X_LCR_PAR_EVEN 0x10
#define CH34X_LCR_ENABLE_PAR 0x08
#define CH34X_LCR_STOP_BITS_2 0x04
#define CH34X_LCR_CS8 0x03
#define CH34X_LCR_CS7 0x02
#define CH34X_LCR_CS6 0x01
#define CH34X_LCR_CS5 0x00
#endif /* _CH34X_H_ */