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/* (c) 2002-2004 by Marcin Wiacek and Michal Cihar */
#include "../../gsmstate.h"
#if defined(GSM_ENABLE_AT) || defined(GSM_ENABLE_BLUEAT) || defined(GSM_ENABLE_IRDAAT) || defined(GSM_ENABLE_DKU2AT)
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "../../gsmcomon.h"
#include "at.h"
static GSM_Error AT_WriteMessage (GSM_StateMachine *s, unsigned const char *buffer,
int length, int type)
{
int sent=0, write_data=0, i=0;
GSM_DumpMessageText(s, buffer, length, type);
GSM_DumpMessageBinary(s, buffer, length, type);
if (s->Protocol.Data.AT.FastWrite) {
while (sent != length) {
write_data = s->Device.Functions->WriteDevice(s,buffer + sent, length - sent);
if (write_data == 0 || write_data < 0) {
return ERR_DEVICEWRITEERROR;
}
sent += write_data;
}
} else {
for (i = 0; i < length; i++) {
/* For some phones like Siemens M20 we need to wait a little
* after writing each char. Possible reason: these phones
* can't receive so fast chars or there is bug here in Gammu */
write_data = s->Device.Functions->WriteDevice(s, buffer + i, 1);
if (write_data != 1) {
return ERR_DEVICEWRITEERROR;
}
usleep(1000);
}
usleep(400000);
}
return ERR_NONE;
}
typedef struct {
const char *text;
int lines;
GSM_Phone_RequestID requestid;
} SpecialAnswersStruct;
GSM_Error AT_StateMachine(GSM_StateMachine *s, unsigned char rx_char)
{
GSM_Protocol_Message Msg2;
GSM_Protocol_ATData *d = &s->Protocol.Data.AT;
size_t i;
/* These are lines with end of "normal" answers */
static const char *StatusStrings[] = {
/* Standard AT */
"OK\r",
"ERROR\r",
/* AT with bad end of lines */
"OK\n",
"ERROR\n",
/* Standard GSM */
"+CME ERROR:",
"+CMS ERROR:",
/* Motorola A1200 */
"MODEM ERROR:",
/* Huawei */
"COMMAND NOT SUPPORT",
NULL};
/* Some info from phone can be inside "normal" answers
* It starts with strings written here
*/
static const SpecialAnswersStruct SpecialAnswers[] = {
/* Standard GSM */
{"+CGREG:" ,1, ID_GetNetworkInfo},
{"+CBM:" ,1, ID_All},
{"+CMT:" ,2, ID_All},
{"+CMTI:" ,1, ID_All},
{"+CDS:" ,2, ID_All},
{"+CDSI:" ,1, ID_All},
{"+CREG:" ,1, ID_GetNetworkInfo},
{"+CUSD" ,1, ID_All},
{"+COLP" ,1, ID_All},
{"+CLIP" ,1, ID_All},
{"+CRING" ,1, ID_All},
{"+CCWA" ,1, ID_All},
{"+CLCC" ,1, ID_All},
/* Standard AT */
{"RING" ,1, ID_All},
{"NO CARRIER" ,1, ID_All},
{"NO ANSWER" ,1, ID_All},
/* GlobeTrotter */
{"_OSIGQ:" ,1, ID_All},
{"_OBS:" ,1, ID_All},
{"^SCN:" ,1, ID_All},
/* Sony-Ericsson */
{"*EBCA" ,1, ID_All},
/* Samsung binary transfer end */
{"SDNDCRC =" ,1, ID_All},
/* Samsung reply to SSHT in some cases */
{"SAMSUNG PTS DG Test", 1, ID_All},
/* Cross PD1101wi reply to almost anything */
{"NOT FOND ^,NOT CUSTOM AT", 1, ID_All},
/* Motorola banner */
{"+MBAN:" ,1, ID_All},
/* HSPA CORPORATION */
{"+ZEND" ,1, ID_All},
/* Huawei */
{"^RSSI:" ,1, ID_All}, /* ^RSSI:18 */
{"^HCSQ:" ,1, ID_All}, /* ^HCSQ:"WCDMA",39,29,45 */
{"^DSFLOWRPT:" ,1, ID_All}, /* ^DSFLOWRPT:00000124,00000082,00000EA6,0000000000012325,000000000022771D,0000BB80,0001F400 */
{"^BOOT:" ,1, ID_All}, /* ^BOOT:27710117,0,0,0,75 */
{"^MODE:" ,1, ID_All}, /* ^MODE:3,3 */
{"^CSNR:" ,1, ID_All}, /* ^CSNR:-93,-23 */
{"^HCSQ:" ,1, ID_All}, /* ^HCSQ:"LTE",59,50,161,24 */
{"^SRVST:" ,1, ID_All}, /* ^SRVST:0 */
{"^SIMST:" ,1, ID_All}, /* ^SIMST:1 */
{"^STIN:" ,1, ID_All}, /* ^STIN: 7, 0, 0 */
/* ONDA */
{"+ZUSIMR:" ,1, ID_All}, /* +ZUSIMR:2 */
{NULL ,1, ID_All}};
/* We're starting new message */
if (d->Msg.Length == 0) {
/* Ignore leading CR, LF and ESC */
if (rx_char == 10 || rx_char == 13 || rx_char == 27) {
return ERR_NONE;
}
d->LineStart = 0;
}
/* Allocate more memory if needed */
if (d->Msg.BufferUsed < d->Msg.Length + 2) {
d->Msg.BufferUsed = d->Msg.Length + 200;
d->Msg.Buffer = (unsigned char *)realloc(d->Msg.Buffer,d->Msg.BufferUsed);
if (d->Msg.Buffer == NULL) {
return ERR_MOREMEMORY;
}
}
/* Store current char in the buffer */
d->Msg.Buffer[d->Msg.Length++] = rx_char;
d->Msg.Buffer[d->Msg.Length ] = 0;
/* Parse char */
switch (rx_char) {
case 0:
break;
case 10:
case 13:
/* Store line end (if we did not do it in last char */
if (! d->wascrlf) {
d->LineEnd = d->Msg.Length - 1;
}
d->wascrlf = TRUE;
/* Process line after \r\n */
if (d->Msg.Length > 0 && rx_char == 10 && d->Msg.Buffer[d->Msg.Length - 2] == 13) {
/* Process standard responses */
for (i = 0; StatusStrings[i] != NULL; i++) {
if (strncmp(StatusStrings[i],
d->Msg.Buffer + d->LineStart,
strlen(StatusStrings[i])) == 0) {
s->Phone.Data.RequestMsg = &d->Msg;
s->Phone.Data.DispatchError = s->Phone.Functions->DispatchMessage(s);
d->Msg.Length = 0;
break;
}
}
/* Generally hack for A2D */
if (d->CPINNoOK) {
if (strncmp("+CPIN: ",
d->Msg.Buffer + d->LineStart,
7) == 0) {
s->Phone.Data.RequestMsg = &d->Msg;
s->Phone.Data.DispatchError = s->Phone.Functions->DispatchMessage(s);
d->Msg.Length = 0;
break;
}
}
/* Check for incoming frames */
for (i = 0; SpecialAnswers[i].text != NULL; i++) {
if (strncmp(SpecialAnswers[i].text,
d->Msg.Buffer + d->LineStart,
strlen(SpecialAnswers[i].text)) == 0) {
/* We need something better here */
if (s->Phone.Data.RequestID == SpecialAnswers[i].requestid) {
i++;
continue;
}
if ((s->Phone.Data.RequestID == ID_SetOBEX || s->Phone.Data.RequestID == ID_DialVoice)&&
strcmp(SpecialAnswers[i].text, "NO CARRIER") == 0) {
i++;
continue;
}
d->SpecialAnswerStart = d->LineStart;
d->SpecialAnswerLines = SpecialAnswers[i].lines;
}
}
/* Last line of incoming frame */
if (d->SpecialAnswerLines == 1) {
/* This is end of special answer. We copy it and send to phone module */
Msg2.Buffer = (unsigned char *)malloc(d->LineEnd - d->SpecialAnswerStart + 3);
memcpy(Msg2. Buffer, d->Msg.Buffer + d->SpecialAnswerStart, d->LineEnd - d->SpecialAnswerStart + 2);
Msg2.Length = d->LineEnd - d->SpecialAnswerStart + 2;
Msg2.Buffer[Msg2.Length] = '\0';
Msg2.Type = 0;
s->Phone.Data.RequestMsg = &Msg2;
s->Phone.Data.DispatchError = s->Phone.Functions->DispatchMessage(s);
free(Msg2.Buffer);
Msg2.Buffer = NULL;
/* We cut special answer from main buffer */
d->Msg.Length = d->SpecialAnswerStart;
if (d->Msg.Length != 0) {
d->Msg.Length = d->Msg.Length - 2;
}
/* We need to find earlier values of all variables */
d->wascrlf = FALSE;
d->LineStart = 0;
for (i = 0;i < d->Msg.Length; i++) {
switch (d->Msg.Buffer[i]) {
case 0:
break;
case 10:
case 13:
if (!d->wascrlf) {
d->LineEnd = d->Msg.Length - 1;
}
d->wascrlf = TRUE;
break;
default:
if (d->wascrlf) {
d->LineStart = d->Msg.Length - 1;
d->wascrlf = FALSE;
}
}
}
d->Msg.Buffer[d->Msg.Length] = 0;
}
if (d->SpecialAnswerLines > 0) {
d->SpecialAnswerLines--;
}
}
break;
case 'T':
/* When CONNECT string received, we know there will not follow
* anything AT related, after CONNECT can follow ppp data, alcabus
* data and also other things.
*/
if (strncmp(d->Msg.Buffer + d->LineStart, "CONNECT", 7) == 0) {
s->Phone.Data.RequestMsg = &d->Msg;
s->Phone.Data.DispatchError = s->Phone.Functions->DispatchMessage(s);
d->LineStart = -1;
d->Msg.Length = 0;
break;
}
default:
if (d->wascrlf) {
d->LineStart = d->Msg.Length - 1;
d->wascrlf = FALSE;
}
if (d->EditMode) {
if (strlen(d->Msg.Buffer+d->LineStart) == 2 &&
strncmp(d->Msg. Buffer + d->LineStart, "> ", 2) == 0) {
s->Phone.Data.RequestMsg = &d->Msg;
s->Phone.Data.DispatchError = s->Phone.Functions->DispatchMessage(s);
}
}
}
return ERR_NONE;
}
GSM_Error AT_Initialise(GSM_StateMachine *s)
{
GSM_Protocol_ATData *d = &s->Protocol.Data.AT;
GSM_Error error;
d->Msg.Buffer = NULL;
d->Msg.BufferUsed = 0;
d->Msg.Length = 0;
d->Msg.Type = 0;
d->SpecialAnswerLines = 0;
d->LineStart = -1;
d->LineEnd = -1;
d->wascrlf = FALSE;
d->EditMode = FALSE;
/* Slow write makes sense only on cable for some phones */
d->FastWrite = (s->ConnectionType != GCT_AT);
d->CPINNoOK = FALSE;
error = s->Device.Functions->DeviceSetParity(s, FALSE);
if (error != ERR_NONE) return error;
error = s->Device.Functions->DeviceSetDtrRts(s, TRUE, TRUE);
if (error != ERR_NONE) return error;
return s->Device.Functions->DeviceSetSpeed(s, s->Speed);
}
static GSM_Error AT_Terminate(GSM_StateMachine *s)
{
free(s->Protocol.Data.AT.Msg.Buffer);
s->Protocol.Data.AT.Msg.Buffer = NULL;
return ERR_NONE;
}
GSM_Protocol_Functions ATProtocol = {
AT_WriteMessage,
AT_StateMachine,
AT_Initialise,
AT_Terminate
};
#endif
/* How should editor hadle tabs in this file? Add editor commands here.
* vim: noexpandtab sw=8 ts=8 sts=8:
*/
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