110 lines
3.0 KiB
C
110 lines
3.0 KiB
C
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/**
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* WinPR: Windows Portable Runtime
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* Serial Communication API
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*
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* Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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* Copyright 2014 Hewlett-Packard Development Company, L.P.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef WINPR_COMM_PRIVATE_H
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#define WINPR_COMM_PRIVATE_H
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#if defined __linux__ && !defined ANDROID
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#include <linux/serial.h>
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#include <sys/eventfd.h>
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#include <winpr/comm.h>
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#include "../handle/handle.h"
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#include "config.h"
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struct winpr_comm
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{
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WINPR_HANDLE_DEF();
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int fd;
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int fd_read;
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int fd_read_event; /* as of today, only used by _purge() */
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CRITICAL_SECTION ReadLock;
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int fd_write;
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int fd_write_event; /* as of today, only used by _purge() */
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CRITICAL_SECTION WriteLock;
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/* permissive mode on errors. If TRUE (default is FALSE)
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* CommDeviceIoControl always return TRUE.
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*
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* Not all features are supported yet and an error is then returned when
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* an application turns them on (e.g: i/o buffers > 4096). It appeared
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* though that devices and applications can be still functional on such
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* errors.
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*
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* see also: comm_ioctl.c
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*
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* FIXME: getting rid of this flag once all features supported.
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*/
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BOOL permissive;
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SERIAL_DRIVER_ID serverSerialDriverId;
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COMMTIMEOUTS timeouts;
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CRITICAL_SECTION
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EventsLock; /* protects counters, WaitEventMask and PendingEvents */
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struct serial_icounter_struct counters;
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ULONG WaitEventMask;
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ULONG PendingEvents;
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char eventChar;
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/* NB: CloseHandle() has to free resources */
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};
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typedef struct winpr_comm WINPR_COMM;
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#define SERIAL_EV_RXCHAR 0x0001
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#define SERIAL_EV_RXFLAG 0x0002
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#define SERIAL_EV_TXEMPTY 0x0004
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#define SERIAL_EV_CTS 0x0008
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#define SERIAL_EV_DSR 0x0010
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#define SERIAL_EV_RLSD 0x0020
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#define SERIAL_EV_BREAK 0x0040
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#define SERIAL_EV_ERR 0x0080
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#define SERIAL_EV_RING 0x0100
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#define SERIAL_EV_PERR 0x0200
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#define SERIAL_EV_RX80FULL 0x0400
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#define SERIAL_EV_EVENT1 0x0800
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#define SERIAL_EV_EVENT2 0x1000
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#define SERIAL_EV_FREERDP_WAITING 0x4000 /* bit today unused by other SERIAL_EV_* */
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#define SERIAL_EV_FREERDP_STOP 0x8000 /* bit today unused by other SERIAL_EV_* */
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#define FREERDP_PURGE_TXABORT 0x00000001 /* abort pending transmission */
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#define FREERDP_PURGE_RXABORT 0x00000002 /* abort pending reception */
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void CommLog_Print(DWORD wlog_level, ...);
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BOOL CommIsHandled(HANDLE handle);
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BOOL CommCloseHandle(HANDLE handle);
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#ifndef WITH_EVENTFD_READ_WRITE
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int eventfd_read(int fd, eventfd_t* value);
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int eventfd_write(int fd, eventfd_t value);
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#endif
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#endif /* __linux__ */
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#endif /* WINPR_COMM_PRIVATE_H */
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