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/* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Copyright (c) 2011 Michal Cihar <michal@cihar.com>
*/
#include "../../gsmstate.h"
#if defined(GSM_ENABLE_S60)
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "../../gsmcomon.h"
#include "s60.h"
#include "s60-ids.h"
static GSM_Error S60_WriteMessage (GSM_StateMachine *s, unsigned const char *MsgBuffer,
int MsgLength, int MsgType)
{
unsigned char *buffer=NULL;
int pos, sent, length, buflen, bufpos;
GSM_Error error;
/* No type */
if (MsgType == 0) {
return ERR_NONE;
}
/* Allocate buffer for composing message */
buflen = MIN(MAX_LENGTH, MsgLength) + 10;
buffer = (unsigned char *)malloc(buflen);
if (buffer == NULL) {
return ERR_MOREMEMORY;
}
/* Send message parts */
for (pos = 0; MsgLength - pos > MAX_LENGTH; pos += MAX_LENGTH) {
error = S60_WriteMessage(s, MsgBuffer + pos, MAX_LENGTH, NUM_PARTIAL_MESSAGE);
if (error != ERR_NONE) {
free(buffer);
return ERR_DEVICEWRITEERROR;
}
}
/* Send final message */
buffer[0] = MsgType;
length = MsgLength - pos;
bufpos = snprintf(buffer, buflen, "%d%c", MsgType, NUM_END_HEADER);
memcpy(buffer + bufpos, MsgBuffer + pos, length);
buffer[bufpos + length] = '\n';
length += bufpos + 1;
/* Debugging */
GSM_DumpMessageLevel3(s, buffer, length, MsgType);
GSM_DumpMessageLevel2(s, buffer, length, MsgType);
sent = s->Device.Functions->WriteDevice(s, buffer, length);
free(buffer);
if (sent != length) {
return ERR_DEVICEWRITEERROR;
}
return ERR_NONE;
}
static GSM_Error S60_StateMachine(GSM_StateMachine *s, unsigned char rxchar)
{
GSM_Protocol_S60Data *d = &s->Protocol.Data.S60;
/* Did we complete part of packet? */
switch (d->State) {
case S60_Header:
if (rxchar == NUM_END_HEADER) {
d->Msg.Type = atoi(d->idbuffer);
d->State = S60_Data;
d->idpos = 0;
} else {
d->idbuffer[d->idpos++] = rxchar;
d->idbuffer[d->idpos] = 0;
}
break;
case S60_Data:
if (rxchar == NUM_END_TEXT) {
d->State = S60_Header;
/* Should we wait for other parts? */
if (d->Msg.Type == NUM_PARTIAL_MESSAGE) {
return ERR_NONE;
}
/* We've got data to process */
s->Phone.Data.RequestMsg = &d->Msg;
s->Phone.Data.DispatchError = s->Phone.Functions->DispatchMessage(s);
/* Reset message length */
d->Msg.Length = 0;
} else {
/* Allocate buffer */
if (d->Msg.BufferUsed < d->Msg.Length + 2) {
d->Msg.BufferUsed = d->Msg.Length + 2;
d->Msg.Buffer = (unsigned char *)realloc(d->Msg.Buffer, d->Msg.BufferUsed);
if (d->Msg.Buffer == NULL) {
return ERR_MOREMEMORY;
}
}
/* Store received byte */
d->Msg.Buffer[d->Msg.Length++] = rxchar;
d->Msg.Buffer[d->Msg.Length] = 0;
}
break;
}
return ERR_NONE;
}
static GSM_Error S60_Initialise(GSM_StateMachine *s)
{
GSM_Protocol_S60Data *d = &s->Protocol.Data.S60;
d->Msg.BufferUsed = 0;
d->Msg.Buffer = NULL;
d->Msg.Length = 0;
d->State = S60_Header;
d->idpos = 0;
return ERR_NONE;
}
static GSM_Error S60_Terminate(GSM_StateMachine *s)
{
free(s->Protocol.Data.S60.Msg.Buffer);
s->Protocol.Data.S60.Msg.Buffer = NULL;
return ERR_NONE;
}
GSM_Protocol_Functions S60Protocol = {
S60_WriteMessage,
S60_StateMachine,
S60_Initialise,
S60_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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