X-Git-Url: http://git.smho.de/gw/?p=owSlave2.git;a=blobdiff_plain;f=tools_cmd%2FrwOW%2Ftmexnet.c;fp=tools_cmd%2FrwOW%2Ftmexnet.c;h=5f328c7e948111a1b8dc710f9fa58ee62f50b9e0;hp=0000000000000000000000000000000000000000;hb=cd92472e6fd63693741f8e168123a4182802651b;hpb=0f5b4d994ac87afdd294f6fc79692bcf92e337de diff --git a/tools_cmd/rwOW/tmexnet.c b/tools_cmd/rwOW/tmexnet.c new file mode 100644 index 0000000..5f328c7 --- /dev/null +++ b/tools_cmd/rwOW/tmexnet.c @@ -0,0 +1,249 @@ +//--------------------------------------------------------------------------- +// Copyright (C) 2001 Dallas Semiconductor Corporation, All Rights Reserved. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the "Software"), +// to deal in the Software without restriction, including without limitation +// the rights to use, copy, modify, merge, publish, distribute, sublicense, +// and/or sell copies of the Software, and to permit persons to whom the +// Software is furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +// IN NO EVENT SHALL DALLAS SEMICONDUCTOR BE LIABLE FOR ANY CLAIM, DAMAGES +// OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +// OTHER DEALINGS IN THE SOFTWARE. +// +// Except as contained in this notice, the name of Dallas Semiconductor +// shall not be used except as stated in the Dallas Semiconductor +// Branding Policy. +//--------------------------------------------------------------------------- +// +// tmexnet.C - Wrapper class to hook 1-Wire Public Domain API to TMEX API +// for network functions. +// +// Version: 3.00 +// +// + +#include "ownet.h" +#include + +uchar StateBuffer[MAX_PORTNUM][5120]; + +// external TMEX variables +extern long SessionHandle[MAX_PORTNUM]; +extern short far pascal TMSearch(long session_handle, void *start_buffer, + short ResetSearch, short PerformReset, + short SrchCmd); +extern short pascal TMFirst(long, void *); +extern short pascal TMNext(long, void *); +extern short pascal TMAccess(long, void *); +extern short pascal TMStrongAccess(long, void *); +extern short pascal TMStrongAlarmAccess(long, void *); +extern short pascal TMOverAccess(long, void *); +extern short pascal TMRom(long, void *, short *); +extern short pascal TMFirstAlarm(long, void *); +extern short pascal TMNextAlarm(long, void *); +extern short pascal TMFamilySearchSetup(long, void *, short); +extern short pascal TMSkipFamily(long, void *); +extern short pascal TMAutoOverDrive(long, void *, short); + + +//-------------------------------------------------------------------------- +// The 'owFirst' finds the first device on the 1-Wire Net This function +// contains one parameter 'alarm_only'. When +// 'alarm_only' is TRUE (1) the find alarm command 0xEC is +// sent instead of the normal search command 0xF0. +// Using the find alarm command 0xEC will limit the search to only +// 1-Wire devices that are in an 'alarm' state. +// +// 'portnum' - number 0 to MAX_PORTNUM-1. This number is provided to +// indicate the symbolic port number. +// 'do_reset' - TRUE (1) perform reset before search, FALSE (0) do not +// perform reset before search. +// 'alarm_only' - TRUE (1) the find alarm command 0xEC is +// sent instead of the normal search command 0xF0 +// +// Returns: TRUE (1) : when a 1-Wire device was found and it's +// Serial Number placed in the global SerialNum[portnum] +// FALSE (0): There are no devices on the 1-Wire Net. +// +SMALLINT owFirst(int portnum, SMALLINT do_reset, SMALLINT alarm_only) +{ + return (TMSearch(SessionHandle[portnum], StateBuffer[portnum], 1, + (short)do_reset, (short)((alarm_only) ? 0xEC : 0xF0)) == 1); +} + +//-------------------------------------------------------------------------- +// The 'owNext' function does a general search. This function +// continues from the previos search state. The search state +// can be reset by using the 'owFirst' function. +// This function contains one parameter 'alarm_only'. +// When 'alarm_only' is TRUE (1) the find alarm command +// 0xEC is sent instead of the normal search command 0xF0. +// Using the find alarm command 0xEC will limit the search to only +// 1-Wire devices that are in an 'alarm' state. +// +// 'portnum' - number 0 to MAX_PORTNUM-1. This number is provided to +// indicate the symbolic port number. +// 'do_reset' - TRUE (1) perform reset before search, FALSE (0) do not +// perform reset before search. +// 'alarm_only' - TRUE (1) the find alarm command 0xEC is +// sent instead of the normal search command 0xF0 +// +// Returns: TRUE (1) : when a 1-Wire device was found and it's +// Serial Number placed in the global SerialNum[portnum] +// FALSE (0): when no new device was found. Either the +// last search was the last device or there +// are no devices on the 1-Wire Net. +// +SMALLINT owNext(int portnum, SMALLINT do_reset, SMALLINT alarm_only) +{ + return (TMSearch(SessionHandle[portnum], StateBuffer[portnum], 0, + (short)do_reset, (short)((alarm_only) ? 0xEC : 0xF0)) == 1); +} + +//-------------------------------------------------------------------------- +// The 'owSerialNum' function either reads or sets the SerialNum buffer +// that is used in the search functions 'owFirst' and 'owNext'. +// This function contains two parameters, 'serialnum_buf' is a pointer +// to a buffer provided by the caller. 'serialnum_buf' should point to +// an array of 8 unsigned chars. The second parameter is a flag called +// 'do_read' that is TRUE (1) if the operation is to read and FALSE +// (0) if the operation is to set the internal SerialNum buffer from +// the data in the provided buffer. +// +// 'portnum' - number 0 to MAX_PORTNUM-1. This number is provided to +// indicate the symbolic port number. +// 'serialnum_buf' - buffer to that contains the serial number to set +// when do_read = FALSE (0) and buffer to get the serial +// number when do_read = TRUE (1). +// 'do_read' - flag to indicate reading (1) or setting (0) the current +// serial number. +// +void owSerialNum(int portnum, uchar *serialnum_buf, SMALLINT do_read) +{ + short ROM[8],i; + + // check if reading or writing + if (do_read) + { + ROM[0] = 0; + } + else + { + for (i = 0; i < 8; i++) + ROM[i] = serialnum_buf[i]; + } + + // call TMEX to read or set the current device + TMRom(SessionHandle[portnum], StateBuffer[portnum], ROM); + + // place in 'serialnum_buf' + if (do_read) + { + for (i = 0; i < 8; i++) + serialnum_buf[i] = (uchar)ROM[i]; + } +} + +//-------------------------------------------------------------------------- +// Setup the search algorithm to find a certain family of devices +// the next time a search function is called 'owNext'. +// +// 'portnum' - number 0 to MAX_PORTNUM-1. This number was provided to +// OpenCOM to indicate the port number. +// 'search_family' - family code type to set the search algorithm to find +// next. +// +void owFamilySearchSetup(int portnum, SMALLINT search_family) +{ + TMFamilySearchSetup(SessionHandle[portnum], StateBuffer[portnum], + (short)search_family); +} + +//-------------------------------------------------------------------------- +// Set the current search state to skip the current family code. +// +// 'portnum' - number 0 to MAX_PORTNUM-1. This number is provided to +// indicate the symbolic port number. +// +void owSkipFamily(int portnum) +{ + TMSkipFamily(SessionHandle[portnum], StateBuffer[portnum]); +} + +//-------------------------------------------------------------------------- +// The 'owAccess' function resets the 1-Wire and sends a MATCH Serial +// Number command followed by the current SerialNum code. After this +// function is complete the 1-Wire device is ready to accept device-specific +// commands. +// +// 'portnum' - number 0 to MAX_PORTNUM-1. This number is provided to +// indicate the symbolic port number. +// +// Returns: TRUE (1) : reset indicates present and device is ready +// for commands. +// FALSE (0): reset does not indicate presence or echos 'writes' +// are not correct. +// +SMALLINT owAccess(int portnum) +{ + return (TMAccess(SessionHandle[portnum], StateBuffer[portnum]) == 1); +} + +//---------------------------------------------------------------------- +// The function 'owVerify' verifies that the current device +// is in contact with the 1-Wire Net. +// Using the find alarm command 0xEC will verify that the device +// is in contact with the 1-Wire Net and is in an 'alarm' state. +// +// 'portnum' - number 0 to MAX_PORTNUM-1. This number is provided to +// indicate the symbolic port number. +// 'alarm_only' - TRUE (1) the find alarm command 0xEC +// is sent instead of the normal search +// command 0xF0. +// +// Returns: TRUE (1) : when the 1-Wire device was verified +// to be on the 1-Wire Net +// with alarm_only == FALSE +// or verified to be on the 1-Wire Net +// AND in an alarm state when +// alarm_only == TRUE. +// FALSE (0): the 1-Wire device was not on the +// 1-Wire Net or if alarm_only +// == TRUE, the device may be on the +// 1-Wire Net but in a non-alarm state. +// +SMALLINT owVerify(int portnum, SMALLINT alarm_only) +{ + if (alarm_only) + return (TMStrongAlarmAccess(SessionHandle[portnum], StateBuffer[portnum]) == 1); + else + return (TMStrongAccess(SessionHandle[portnum], StateBuffer[portnum]) == 1); +} + +//---------------------------------------------------------------------- +// Perform a overdrive MATCH command to select the 1-Wire device with +// the address in the ID data register. +// +// 'portnum' - number 0 to MAX_PORTNUM-1. This number is provided to +// indicate the symbolic port number. +// +// Returns: TRUE: If the device is present on the 1-Wire Net and +// can do overdrive then the device is selected. +// FALSE: Device is not present or not capable of overdrive. +// +// *Note: This function could be converted to send DS2480 +// commands in one packet. +// +SMALLINT owOverdriveAccess(int portnum) +{ + return (TMOverAccess(SessionHandle[portnum], StateBuffer[portnum]) == 1); +}