198 lines
6.4 KiB
C
198 lines
6.4 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 <winpr/wlog.h>
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#include "comm_serial_sys.h"
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#include "comm_sercx_sys.h"
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#include "comm_sercx2_sys.h"
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/* http://msdn.microsoft.com/en-us/library/dn265347%28v=vs.85%29.aspx
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*
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* SerCx2 does not support special characters. SerCx2 always completes
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* an IOCTL_SERIAL_SET_CHARS request with a STATUS_SUCCESS status
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* code, but does not set any special characters or perform any other
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* operation in response to this request. For an
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* IOCTL_SERIAL_GET_CHARS request, SerCx2 sets all the character
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* values in the SERIAL_CHARS structure to null, and completes the
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* request with a STATUS_SUCCESS status code.
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*/
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static BOOL _set_serial_chars(WINPR_COMM* pComm, const SERIAL_CHARS* pSerialChars)
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{
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return TRUE;
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}
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static BOOL _get_serial_chars(WINPR_COMM* pComm, SERIAL_CHARS* pSerialChars)
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{
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ZeroMemory(pSerialChars, sizeof(SERIAL_CHARS));
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return TRUE;
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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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/* FIXME: only using the Serial.sys' events, complete the support of the remaining events */
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static const ULONG _SERCX2_SYS_SUPPORTED_EV_MASK =
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SERIAL_EV_RXCHAR | SERIAL_EV_RXFLAG | SERIAL_EV_TXEMPTY | SERIAL_EV_CTS | SERIAL_EV_DSR |
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SERIAL_EV_RLSD | SERIAL_EV_BREAK | 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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/* use Serial.sys for basis (not SerCx.sys) */
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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 & _SERCX2_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 (SerCx2.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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static BOOL _purge(WINPR_COMM* pComm, const ULONG* pPurgeMask)
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{
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SERIAL_DRIVER* pSerialSys = SerialSys_s();
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/* http://msdn.microsoft.com/en-us/library/windows/hardware/ff546655%28v=vs.85%29.aspx */
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if ((*pPurgeMask & SERIAL_PURGE_RXCLEAR) && !(*pPurgeMask & SERIAL_PURGE_RXABORT))
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{
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CommLog_Print(WLOG_WARN,
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"Expecting SERIAL_PURGE_RXABORT since SERIAL_PURGE_RXCLEAR is set");
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SetLastError(ERROR_INVALID_DEVICE_OBJECT_PARAMETER);
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return FALSE;
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}
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if ((*pPurgeMask & SERIAL_PURGE_TXCLEAR) && !(*pPurgeMask & SERIAL_PURGE_TXABORT))
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{
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CommLog_Print(WLOG_WARN,
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"Expecting SERIAL_PURGE_TXABORT since SERIAL_PURGE_TXCLEAR is set");
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SetLastError(ERROR_INVALID_DEVICE_OBJECT_PARAMETER);
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return FALSE;
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}
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return pSerialSys->purge(pComm, pPurgeMask);
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}
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/* specific functions only */
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static SERIAL_DRIVER _SerCx2Sys = {
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.id = SerialDriverSerCx2Sys,
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.name = _T("SerCx2.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 = _set_serial_chars,
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.get_serial_chars = _get_serial_chars,
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.set_line_control = NULL,
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.get_line_control = NULL,
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.set_handflow = NULL,
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.get_handflow = NULL,
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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 = _purge,
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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, /* not supported by SerCx2.sys */
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.set_xon = NULL, /* not supported by SerCx2.sys */
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.get_dtrrts = NULL,
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.config_size = NULL, /* not supported by SerCx2.sys */
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.immediate_char = NULL, /* not supported by SerCx2.sys */
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.reset_device = NULL, /* not supported by SerCx2.sys */
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};
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SERIAL_DRIVER* SerCx2Sys_s()
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{
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/* _SerCx2Sys completed with inherited functions from SerialSys or SerCxSys */
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SERIAL_DRIVER* pSerialSys = SerialSys_s();
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SERIAL_DRIVER* pSerCxSys = SerCxSys_s();
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_SerCx2Sys.set_baud_rate = pSerialSys->set_baud_rate;
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_SerCx2Sys.get_baud_rate = pSerialSys->get_baud_rate;
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_SerCx2Sys.get_properties = pSerialSys->get_properties;
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_SerCx2Sys.set_line_control = pSerCxSys->set_line_control;
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_SerCx2Sys.get_line_control = pSerCxSys->get_line_control;
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/* Only SERIAL_CTS_HANDSHAKE, SERIAL_RTS_CONTROL and SERIAL_RTS_HANDSHAKE flags are really
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* required by SerCx2.sys http://msdn.microsoft.com/en-us/library/jj680685%28v=vs.85%29.aspx
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*/
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_SerCx2Sys.set_handflow = pSerialSys->set_handflow;
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_SerCx2Sys.get_handflow = pSerialSys->get_handflow;
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_SerCx2Sys.set_timeouts = pSerialSys->set_timeouts;
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_SerCx2Sys.get_timeouts = pSerialSys->get_timeouts;
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_SerCx2Sys.set_dtr = pSerialSys->set_dtr;
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_SerCx2Sys.clear_dtr = pSerialSys->clear_dtr;
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_SerCx2Sys.set_rts = pSerialSys->set_rts;
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_SerCx2Sys.clear_rts = pSerialSys->clear_rts;
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_SerCx2Sys.get_modemstatus = pSerialSys->get_modemstatus;
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_SerCx2Sys.set_wait_mask = pSerialSys->set_wait_mask;
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_SerCx2Sys.get_wait_mask = pSerialSys->get_wait_mask;
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_SerCx2Sys.wait_on_mask = pSerialSys->wait_on_mask;
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_SerCx2Sys.set_queue_size = pSerialSys->set_queue_size;
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_SerCx2Sys.get_commstatus = pSerialSys->get_commstatus;
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_SerCx2Sys.set_break_on = pSerialSys->set_break_on;
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_SerCx2Sys.set_break_off = pSerialSys->set_break_off;
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_SerCx2Sys.get_dtrrts = pSerialSys->get_dtrrts;
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return &_SerCx2Sys;
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}
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#endif /* __linux__ */
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