1 /* 2 * Copyright (c) 2006-2023, RT-Thread Development Team 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 * 6 * Change Logs: 7 * Date Author Notes 8 * 2023-11-13 Shell init ver. 9 */ 10 11 /*- 12 * SPDX-License-Identifier: BSD-2-Clause 13 * 14 * Copyright (c) 2008 Ed Schouten <ed@FreeBSD.org> 15 * All rights reserved. 16 * 17 * Portions of this software were developed under sponsorship from Snow 18 * B.V., the Netherlands. 19 * 20 * Redistribution and use in source and binary forms, with or without 21 * modification, are permitted provided that the following conditions 22 * are met: 23 * 1. Redistributions of source code must retain the above copyright 24 * notice, this list of conditions and the following disclaimer. 25 * 2. Redistributions in binary form must reproduce the above copyright 26 * notice, this list of conditions and the following disclaimer in the 27 * documentation and/or other materials provided with the distribution. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 */ 41 42 #ifndef _SYS_TTYDISC_H_ 43 #define _SYS_TTYDISC_H_ 44 45 #ifndef __LWP_TERMINAL_H__ 46 #error "can only be included through <terminal.h>" 47 #endif /* !__LWP_TERMINAL_H__ */ 48 49 #include <rtdef.h> 50 51 struct rt_wqueue; 52 struct rt_thread; 53 struct lwp_tty; 54 struct uio; 55 56 /* Top half routines. */ 57 void ttydisc_open(struct lwp_tty *tp); 58 void ttydisc_close(struct lwp_tty *tp); 59 int ttydisc_read(struct lwp_tty *tp, struct uio *uio, int ioflag); 60 int ttydisc_write(struct lwp_tty *tp, struct uio *uio, int ioflag); 61 void ttydisc_optimize(struct lwp_tty *tp); 62 63 /* Bottom half routines. */ 64 void ttydisc_modem(struct lwp_tty *tp, int open); 65 #define ttydisc_can_bypass(tp) ((tp)->t_flags & TF_BYPASS) 66 int ttydisc_rint(struct lwp_tty *tp, char c, int flags); 67 size_t ttydisc_rint_simple(struct lwp_tty *tp, const void *buf, size_t len); 68 size_t ttydisc_rint_bypass(struct lwp_tty *tp, const void *buf, size_t len); 69 void ttydisc_rint_done(struct lwp_tty *tp); 70 size_t ttydisc_rint_poll(struct lwp_tty *tp); 71 size_t ttydisc_getc(struct lwp_tty *tp, void *buf, size_t len); 72 int ttydisc_getc_uio(struct lwp_tty *tp, struct uio *uio); 73 size_t ttydisc_getc_poll(struct lwp_tty *tp); 74 75 /* Error codes for ttydisc_rint(). */ 76 #define TRE_FRAMING 0x01 77 #define TRE_PARITY 0x02 78 #define TRE_OVERRUN 0x04 79 #define TRE_BREAK 0x08 80 81 #endif /* !_SYS_TTYDISC_H_ */ 82