FreeCalypso > hg > fc-magnetite
view src/aci2/aci/cmh_exts.c @ 680:ee3ac8c617cb
armio.c: set GPIO2 output high initially
On TI-canonical platforms GPIO2 is DCD modem control output. In TI's
original code the AI_InitIOConfig() function called from Init_Target()
would configure GPIO2 as an output and set the initial output value to
low, but then the init code in uartfax.c called from Init_Serial_Flows()
would immediately change it to high, corresponding to DCD not asserted.
The result is a momentary asserted-state glitch on the DCD output.
The present change eliminates this glitch, setting DCD output to
not-asserted initially like it should be.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 25 Jun 2020 03:17:43 +0000 |
parents | 93999a60b835 |
children |
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/* +----------------------------------------------------------------------------- | Project : GSM-PS (6147) | Modul : CMH_EXTS +----------------------------------------------------------------------------- | Copyright 2002 Texas Instruments Berlin, AG | All rights reserved. | | This file is confidential and a trade secret of Texas | Instruments Berlin, AG | The receipt of or possession of this file does not convey | any rights to reproduce or disclose its contents or to | manufacture, use, or sell anything it may describe, in | whole, or in part, without the specific written consent of | Texas Instruments Berlin, AG. +----------------------------------------------------------------------------- | Purpose : This module provides the set functions related to the | protocol stack adapter for AT command extensions. +----------------------------------------------------------------------------- */ #ifndef CMH_EXTS_C #define CMH_EXTS_C #endif #include "aci_all.h" /*==== INCLUDES ===================================================*/ /*==== CONSTANTS ==================================================*/ typedef enum /* ACI functional return codes */ { AT_FAIL = -1, /* execution of command failed */ AT_CMPL /* execution of command completed */ } T_ACI_RETURN; EXTERN T_ACI_RETURN rCI_URC ( CHAR * result ); /*==== EXPORT =====================================================*/ /*==== VARIABLES ==================================================*/ /*==== FUNCTIONS ==================================================*/ /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CMH_EXTS | | STATE : code ROUTINE : sAT_EXT | +--------------------------------------------------------------------+ PURPOSE : This function is called by the interpreter part of the ACI in case of the detection of an unknown command. <command> : remaining unparsed command string. <len> : length of command string. This value must be incremented by the amount of parsed characters by this function. <output> : this parameter can be used to display some strings at the AT command interface. The first char of one string must contain the length of the following string. The special length 0xff must be used to define the end of the string list. */ GLOBAL T_ACI_RETURN sAT_EXT ( CHAR *command, USHORT *len, CHAR *output ) { /* * example how to send an unsolicited result code via the AT interface */ rCI_URC ("<unsolicited result code>"); /* * example how to process the command AT%H */ if (*command++ == '%' && *command == 'H') { *len -= 2; /* * here you can perform some actions with drivers etc. */ /* * and create some additional output at the AT interface * The strings: *"Hello" *"" *"World" * will be displayed at the terminal. * * first string Hello */ output[0] = strlen ("Hello"); memcpy (&output[1], "Hello", 5); /* * add a spare line with an empty string */ output [6] = 0; /* * second string World */ output [7] = strlen ("World"); memcpy (&output[8], "World", 5); /* * end of string list */ output [13] = (CHAR) 0xff; return( AT_CMPL ); } else return( AT_FAIL ); }