264 lines
8.1 KiB
C
264 lines
8.1 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 2011 O.S. Systems Software Ltda.
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* Copyright 2011 Eduardo Fiss Beloni <beloni@ossystems.com.br>
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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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#if defined __linux__ && !defined ANDROID
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#include <assert.h>
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#include <termios.h>
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#include <winpr/wlog.h>
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#include "comm_serial_sys.h"
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static BOOL _set_handflow(WINPR_COMM* pComm, const SERIAL_HANDFLOW* pHandflow)
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{
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SERIAL_HANDFLOW SerCxHandflow;
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BOOL result = TRUE;
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SERIAL_DRIVER* pSerialSys = SerialSys_s();
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memcpy(&SerCxHandflow, pHandflow, sizeof(SERIAL_HANDFLOW));
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/* filter out unsupported bits by SerCx.sys
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*
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* http://msdn.microsoft.com/en-us/library/windows/hardware/jj680685%28v=vs.85%29.aspx
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*/
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SerCxHandflow.ControlHandShake =
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pHandflow->ControlHandShake &
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(SERIAL_DTR_CONTROL | SERIAL_DTR_HANDSHAKE | SERIAL_CTS_HANDSHAKE | SERIAL_DSR_HANDSHAKE);
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SerCxHandflow.FlowReplace =
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pHandflow->FlowReplace & (SERIAL_RTS_CONTROL | SERIAL_RTS_HANDSHAKE);
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if (SerCxHandflow.ControlHandShake != pHandflow->ControlHandShake)
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{
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if (pHandflow->ControlHandShake & SERIAL_DCD_HANDSHAKE)
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{
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CommLog_Print(WLOG_WARN,
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"SERIAL_DCD_HANDSHAKE not supposed to be implemented by SerCx.sys");
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}
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if (pHandflow->ControlHandShake & SERIAL_DSR_SENSITIVITY)
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{
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CommLog_Print(WLOG_WARN,
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"SERIAL_DSR_SENSITIVITY not supposed to be implemented by SerCx.sys");
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}
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if (pHandflow->ControlHandShake & SERIAL_ERROR_ABORT)
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{
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CommLog_Print(WLOG_WARN,
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"SERIAL_ERROR_ABORT not supposed to be implemented by SerCx.sys");
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}
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SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
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result = FALSE;
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}
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if (SerCxHandflow.FlowReplace != pHandflow->FlowReplace)
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{
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if (pHandflow->ControlHandShake & SERIAL_AUTO_TRANSMIT)
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{
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CommLog_Print(WLOG_WARN,
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"SERIAL_AUTO_TRANSMIT not supposed to be implemented by SerCx.sys");
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}
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if (pHandflow->ControlHandShake & SERIAL_AUTO_RECEIVE)
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{
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CommLog_Print(WLOG_WARN,
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"SERIAL_AUTO_RECEIVE not supposed to be implemented by SerCx.sys");
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}
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if (pHandflow->ControlHandShake & SERIAL_ERROR_CHAR)
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{
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CommLog_Print(WLOG_WARN,
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"SERIAL_ERROR_CHAR not supposed to be implemented by SerCx.sys");
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}
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if (pHandflow->ControlHandShake & SERIAL_NULL_STRIPPING)
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{
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CommLog_Print(WLOG_WARN,
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"SERIAL_NULL_STRIPPING not supposed to be implemented by SerCx.sys");
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}
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if (pHandflow->ControlHandShake & SERIAL_BREAK_CHAR)
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{
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CommLog_Print(WLOG_WARN,
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"SERIAL_BREAK_CHAR not supposed to be implemented by SerCx.sys");
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}
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if (pHandflow->ControlHandShake & SERIAL_XOFF_CONTINUE)
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{
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CommLog_Print(WLOG_WARN,
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"SERIAL_XOFF_CONTINUE not supposed to be implemented by SerCx.sys");
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}
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SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
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result = FALSE;
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}
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if (!pSerialSys->set_handflow(pComm, &SerCxHandflow))
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return FALSE;
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return result;
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}
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static BOOL _get_handflow(WINPR_COMM* pComm, SERIAL_HANDFLOW* pHandflow)
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{
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BOOL result;
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SERIAL_DRIVER* pSerialSys = SerialSys_s();
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result = pSerialSys->get_handflow(pComm, pHandflow);
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/* filter out unsupported bits by SerCx.sys
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*
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* http://msdn.microsoft.com/en-us/library/windows/hardware/jj680685%28v=vs.85%29.aspx
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*/
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pHandflow->ControlHandShake =
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pHandflow->ControlHandShake &
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(SERIAL_DTR_CONTROL | SERIAL_DTR_HANDSHAKE | SERIAL_CTS_HANDSHAKE | SERIAL_DSR_HANDSHAKE);
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pHandflow->FlowReplace = pHandflow->FlowReplace & (SERIAL_RTS_CONTROL | SERIAL_RTS_HANDSHAKE);
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return result;
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}
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/* http://msdn.microsoft.com/en-us/library/windows/hardware/hh439605%28v=vs.85%29.aspx */
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static const ULONG _SERCX_SYS_SUPPORTED_EV_MASK = SERIAL_EV_RXCHAR |
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/* SERIAL_EV_RXFLAG | */
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SERIAL_EV_TXEMPTY | SERIAL_EV_CTS |
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SERIAL_EV_DSR | SERIAL_EV_RLSD | SERIAL_EV_BREAK |
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SERIAL_EV_ERR | SERIAL_EV_RING /* |
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SERIAL_EV_PERR |
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SERIAL_EV_RX80FULL |
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SERIAL_EV_EVENT1 |
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SERIAL_EV_EVENT2*/
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;
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static BOOL _set_wait_mask(WINPR_COMM* pComm, const ULONG* pWaitMask)
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{
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ULONG possibleMask;
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SERIAL_DRIVER* pSerialSys = SerialSys_s();
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possibleMask = *pWaitMask & _SERCX_SYS_SUPPORTED_EV_MASK;
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if (possibleMask != *pWaitMask)
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{
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CommLog_Print(WLOG_WARN,
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"Not all wait events supported (SerCx.sys), requested events= 0x%08" PRIX32
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", possible events= 0x%08" PRIX32 "",
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*pWaitMask, possibleMask);
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/* FIXME: shall we really set the possibleMask and return FALSE? */
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pComm->WaitEventMask = possibleMask;
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return FALSE;
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}
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/* NB: All events that are supported by SerCx.sys are supported by Serial.sys*/
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return pSerialSys->set_wait_mask(pComm, pWaitMask);
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}
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/* specific functions only */
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static SERIAL_DRIVER _SerCxSys = {
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.id = SerialDriverSerCxSys,
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.name = _T("SerCx.sys"),
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.set_baud_rate = NULL,
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.get_baud_rate = NULL,
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.get_properties = NULL,
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.set_serial_chars = NULL,
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.get_serial_chars = NULL,
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.set_line_control = NULL,
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.get_line_control = NULL,
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.set_handflow = _set_handflow,
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.get_handflow = _get_handflow,
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.set_timeouts = NULL,
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.get_timeouts = NULL,
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.set_dtr = NULL,
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.clear_dtr = NULL,
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.set_rts = NULL,
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.clear_rts = NULL,
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.get_modemstatus = NULL,
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.set_wait_mask = _set_wait_mask,
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.get_wait_mask = NULL,
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.wait_on_mask = NULL,
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.set_queue_size = NULL,
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.purge = NULL,
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.get_commstatus = NULL,
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.set_break_on = NULL,
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.set_break_off = NULL,
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.set_xoff = NULL,
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.set_xon = NULL,
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.get_dtrrts = NULL,
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.config_size = NULL, /* not supported by SerCx.sys */
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.immediate_char = NULL,
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.reset_device = NULL, /* not supported by SerCx.sys */
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};
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SERIAL_DRIVER* SerCxSys_s()
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{
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/* _SerCxSys completed with inherited functions from SerialSys */
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SERIAL_DRIVER* pSerialSys = SerialSys_s();
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_SerCxSys.set_baud_rate = pSerialSys->set_baud_rate;
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_SerCxSys.get_baud_rate = pSerialSys->get_baud_rate;
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_SerCxSys.get_properties = pSerialSys->get_properties;
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_SerCxSys.set_serial_chars = pSerialSys->set_serial_chars;
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_SerCxSys.get_serial_chars = pSerialSys->get_serial_chars;
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_SerCxSys.set_line_control = pSerialSys->set_line_control;
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_SerCxSys.get_line_control = pSerialSys->get_line_control;
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_SerCxSys.set_timeouts = pSerialSys->set_timeouts;
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_SerCxSys.get_timeouts = pSerialSys->get_timeouts;
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_SerCxSys.set_dtr = pSerialSys->set_dtr;
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_SerCxSys.clear_dtr = pSerialSys->clear_dtr;
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_SerCxSys.set_rts = pSerialSys->set_rts;
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_SerCxSys.clear_rts = pSerialSys->clear_rts;
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_SerCxSys.get_modemstatus = pSerialSys->get_modemstatus;
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_SerCxSys.set_wait_mask = pSerialSys->set_wait_mask;
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_SerCxSys.get_wait_mask = pSerialSys->get_wait_mask;
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_SerCxSys.wait_on_mask = pSerialSys->wait_on_mask;
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_SerCxSys.set_queue_size = pSerialSys->set_queue_size;
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_SerCxSys.purge = pSerialSys->purge;
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_SerCxSys.get_commstatus = pSerialSys->get_commstatus;
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_SerCxSys.set_break_on = pSerialSys->set_break_on;
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_SerCxSys.set_break_off = pSerialSys->set_break_off;
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_SerCxSys.set_xoff = pSerialSys->set_xoff;
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_SerCxSys.set_xon = pSerialSys->set_xon;
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_SerCxSys.get_dtrrts = pSerialSys->get_dtrrts;
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_SerCxSys.immediate_char = pSerialSys->immediate_char;
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return &_SerCxSys;
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}
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#endif /* __linux__ */
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