diff options
Diffstat (limited to 'winpr/libwinpr/comm/comm.h')
| -rw-r--r-- | winpr/libwinpr/comm/comm.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/winpr/libwinpr/comm/comm.h b/winpr/libwinpr/comm/comm.h new file mode 100644 index 0000000..c7884cb --- /dev/null +++ b/winpr/libwinpr/comm/comm.h @@ -0,0 +1,111 @@ +/** + * WinPR: Windows Portable Runtime + * Serial Communication API + * + * Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com> + * Copyright 2014 Hewlett-Packard Development Company, L.P. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef WINPR_COMM_PRIVATE_H +#define WINPR_COMM_PRIVATE_H + +#if defined __linux__ && !defined ANDROID + +#include <linux/serial.h> +#include <sys/eventfd.h> + +#include <winpr/comm.h> + +#include "../handle/handle.h" +#include <winpr/config.h> + +struct winpr_comm +{ + WINPR_HANDLE common; + + int fd; + + int fd_read; + int fd_read_event; /* as of today, only used by _purge() */ + CRITICAL_SECTION ReadLock; + + int fd_write; + int fd_write_event; /* as of today, only used by _purge() */ + CRITICAL_SECTION WriteLock; + + /* permissive mode on errors. If TRUE (default is FALSE) + * CommDeviceIoControl always return TRUE. + * + * Not all features are supported yet and an error is then returned when + * an application turns them on (e.g: i/o buffers > 4096). It appeared + * though that devices and applications can be still functional on such + * errors. + * + * see also: comm_ioctl.c + * + * FIXME: getting rid of this flag once all features supported. + */ + BOOL permissive; + + SERIAL_DRIVER_ID serverSerialDriverId; + + COMMTIMEOUTS timeouts; + + CRITICAL_SECTION + EventsLock; /* protects counters, WaitEventMask and PendingEvents */ + struct serial_icounter_struct counters; + ULONG WaitEventMask; + ULONG PendingEvents; + + char eventChar; + /* NB: CloseHandle() has to free resources */ +}; + +typedef struct winpr_comm WINPR_COMM; + +#define SERIAL_EV_RXCHAR 0x0001 +#define SERIAL_EV_RXFLAG 0x0002 +#define SERIAL_EV_TXEMPTY 0x0004 +#define SERIAL_EV_CTS 0x0008 +#define SERIAL_EV_DSR 0x0010 +#define SERIAL_EV_RLSD 0x0020 +#define SERIAL_EV_BREAK 0x0040 +#define SERIAL_EV_ERR 0x0080 +#define SERIAL_EV_RING 0x0100 +#define SERIAL_EV_PERR 0x0200 +#define SERIAL_EV_RX80FULL 0x0400 +#define SERIAL_EV_EVENT1 0x0800 +#define SERIAL_EV_EVENT2 0x1000 +#define SERIAL_EV_WINPR_WAITING 0x4000 /* bit today unused by other SERIAL_EV_* */ +#define SERIAL_EV_WINPR_STOP 0x8000 /* bit today unused by other SERIAL_EV_* */ + +#define WINPR_PURGE_TXABORT 0x00000001 /* abort pending transmission */ +#define WINPR_PURGE_RXABORT 0x00000002 /* abort pending reception */ + +void CommLog_Print(DWORD wlog_level, ...); + +BOOL CommIsHandled(HANDLE handle); +BOOL CommIsHandleValid(HANDLE handle); +BOOL CommCloseHandle(HANDLE handle); +HANDLE_CREATOR* GetCommHandleCreator(void); + +#ifndef WITH_EVENTFD_READ_WRITE +int eventfd_read(int fd, eventfd_t* value); +int eventfd_write(int fd, eventfd_t value); +#endif + +#endif /* __linux__ */ + +#endif /* WINPR_COMM_PRIVATE_H */ |