Desktop

HomepageMembersTimelineGalleryDownloadBug reports
Back to the revision list Download file Permalink
/* $Id: gsm.c,v 1.103 2010/05/10 01:39:07 khorben Exp $ */
/* Copyright (c) 2010 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Desktop Phone */
/* 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, version 3 of the License.
*
* 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, see <http://www.gnu.org/licenses/>. */
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <termios.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <libintl.h>
#include "command.h"
#include "modem.h"
#include "phone.h"
#include "gsm.h"
#define _(string) gettext(string)
#define N_(string) (string)
/* GSM */
/* private */
/* types */
typedef int (*GSMTriggerCallback)(GSM * gsm, char const * result,
gboolean * answered);
typedef struct _GSMTrigger
{
char const * trigger;
size_t trigger_cnt;
GSMTriggerCallback callback;
} GSMTrigger;
struct _GSM
{
/* settings */
char * device;
unsigned int baudrate;
unsigned int retry;
unsigned int hwflow;
/* callback */
GSMCallback callback;
gpointer callback_data;
GSMEvent event;
GSMStatus status;
/* queue */
GSList * queue;
/* internal */
GSMModem * modem;
GSMMode mode;
guint source;
GIOChannel * channel;
char * rd_buf;
size_t rd_buf_cnt;
guint rd_source;
char * wr_buf;
size_t wr_buf_cnt;
guint wr_source;
};
/* variables */
/* CME ERROR */
static struct
{
int code;
char const * error;
} _gsm_cme_errors[] =
{
{ 0, N_("Phone failure") },
{ 1, N_("No connection to phone") },
{ 3, N_("Operation not allowed") },
{ 4, N_("Operation not supported") },
{ 10, N_("SIM not inserted") },
{ 11, N_("SIM PIN required") },
{ 12, N_("SIM PUK required") },
{ 13, N_("SIM failure") },
{ 14, N_("SIM busy") },
{ 15, N_("SIM wrong") },
{ 16, N_("Incorrect password") },
{ 17, N_("SIM PIN2 required") },
{ 18, N_("SIM PUK2 required") },
{ 20, N_("Memory full") },
{ 21, N_("Invalid index") },
{ 22, N_("Not found") },
{ 23, N_("Memory failure") },
{ 24, N_("Text string too long") },
{ 25, N_("Invalid characters in text string") },
{ 26, N_("Dial string too long") },
{ 27, N_("Invalid characters in dial string") },
{ 30, N_("No network service") },
{ 31, N_("Network timeout") },
{ 32, N_("Network not allowed - emergency calls only")},
{ 100, N_("Unknown error") },
{ 0, NULL }
};
/* CMS ERROR */
static struct
{
int code;
char const * error;
} _gsm_cms_errors[] =
{
{ 300, N_("ME failure") },
{ 301, N_("SMS service of ME reserved") },
{ 302, N_("Operation not allowed") },
{ 303, N_("Operation not supported") },
{ 304, N_("Invalid PDU mode parameter") },
{ 310, N_("SIM not inserted") },
{ 311, N_("SIM PIN required") },
{ 0, NULL }
};
/* models */
static struct
{
char const * model;
unsigned long quirks;
} _gsm_models[] =
{
{ "\"Neo1973 GTA02 Embedded GSM Modem\"",
GSM_MODEM_QUIRK_CPIN_QUOTES },
{ NULL, 0 }
};
/* prototypes */
/* events */
static int _gsm_event_send(GSM * gsm, GSMEventType type);
static int _gsm_event_set_status(GSM * gsm, GSMStatus status);
/* parsing */
static int _gsm_parse(GSM * gsm);
static int _gsm_parse_line(GSM * gsm, char const * line, gboolean * answered);
/* queue management */
static void _gsm_queue_flush(GSM * gsm);
static void _gsm_queue_pop(GSM * gsm);
static int _gsm_queue_push(GSM * gsm);
/* triggers */
static int _gsm_trigger_busy(GSM * gsm, char const * result,
gboolean * answered);
static int _gsm_trigger_cfun(GSM * gsm, char const * result);
static int _gsm_trigger_cgmm(GSM * gsm, char const * result);
static int _gsm_trigger_clip(GSM * gsm, char const * result);
static int _gsm_trigger_cme_error(GSM * gsm, char const * result,
gboolean * answered);
static int _gsm_trigger_cms_error(GSM * gsm, char const * result);
static int _gsm_trigger_cmgl(GSM * gsm, char const * result);
static int _gsm_trigger_cmgs(GSM * gsm, char const * result);
static int _gsm_trigger_cmti(GSM * gsm, char const * result);
static int _gsm_trigger_connect(GSM * gsm, char const * result,
gboolean * answered);
static int _gsm_trigger_cops(GSM * gsm, char const * result);
static int _gsm_trigger_cpas(GSM * gsm, char const * result);
static int _gsm_trigger_cpbr(GSM * gsm, char const * result);
static int _gsm_trigger_cpin(GSM * gsm, char const * result);
static int _gsm_trigger_creg(GSM * gsm, char const * result);
static int _gsm_trigger_cring(GSM * gsm, char const * result);
static int _gsm_trigger_csq(GSM * gsm, char const * result);
static int _gsm_trigger_no_answer(GSM * gsm, char const * result,
gboolean * answered);
static int _gsm_trigger_no_carrier(GSM * gsm, char const * result,
gboolean * answered);
static int _gsm_trigger_no_dialtone(GSM * gsm, char const * result,
gboolean * answered);
/* triggers */
static GSMTrigger _gsm_triggers[] =
{
#define GSM_TRIGGER(trigger, callback) \
{ trigger, sizeof(trigger) - 1, \
(GSMTriggerCallback)_gsm_trigger_ ## callback }
GSM_TRIGGER("BUSY", busy),
GSM_TRIGGER("+CFUN: ", cfun),
GSM_TRIGGER("+CGMM: ", cgmm),
GSM_TRIGGER("+CLIP: ", clip),
GSM_TRIGGER("+CME ERROR: ", cme_error),
GSM_TRIGGER("+CMS ERROR: ", cms_error),
GSM_TRIGGER("+CMGL: ", cmgl),
GSM_TRIGGER("+CMGS: ", cmgs),
GSM_TRIGGER("+CMTI: ", cmti),
GSM_TRIGGER("CONNECT", connect),
GSM_TRIGGER("+COPS: ", cops),
GSM_TRIGGER("+CPAS: ", cpas),
GSM_TRIGGER("+CPBR: ", cpbr),
GSM_TRIGGER("+CPIN: ", cpin),
GSM_TRIGGER("+CREG: ", creg),
GSM_TRIGGER("+CRING: ", cring),
GSM_TRIGGER("+CSQ: ", csq),
GSM_TRIGGER("NO ANSWER", no_answer),
GSM_TRIGGER("NO CARRIER", no_carrier),
GSM_TRIGGER("NO DIALTONE", no_dialtone),
{ NULL, 0, NULL }
};
/* callbacks */
static gboolean _on_reset(gpointer data);
static gboolean _on_timeout(gpointer data);
static gboolean _on_watch_can_read(GIOChannel * source, GIOCondition condition,
gpointer data);
static gboolean _on_watch_can_write(GIOChannel * source, GIOCondition condition,
gpointer data);
/* public */
/* functions */
/* gsm_new */
static unsigned int _new_baudrate(unsigned int baudrate);
GSM * gsm_new(char const * device, unsigned int baudrate, unsigned int hwflow)
{
GSM * gsm;
if(device == NULL)
return NULL;
if((gsm = malloc(sizeof(*gsm))) == NULL)
return NULL;
/* settings */
gsm->device = strdup(device);
gsm->baudrate = _new_baudrate(baudrate);
gsm->retry = 1000;
gsm->hwflow = hwflow;
/* callback */
gsm->callback = NULL;
gsm->callback_data = NULL;
memset(&gsm->event, 0, sizeof(gsm->event));
gsm->status = GSM_STATUS_UNKNOWN;
/* queue */
gsm->queue = NULL;
/* internal */
gsm->modem = gsm_modem_new(gsm);
gsm->mode = GSM_MODE_INIT;
gsm->source = 0;
gsm->channel = NULL;
gsm->rd_buf = NULL;
gsm->rd_buf_cnt = 0;
gsm->rd_source = 0;
gsm->wr_buf = NULL;
gsm->wr_buf_cnt = 0;
gsm->wr_source = 0;
/* error checking */
if(gsm->device == NULL || gsm->baudrate == 0 || gsm->modem == NULL)
{
gsm_delete(gsm);
return NULL;
}
gsm_reset(gsm, 0);
return gsm;
}
static unsigned int _new_baudrate(unsigned int baudrate)
{
char buf[256];
switch(baudrate)
{
case 1200:
return B1200;
case 2400:
return B2400;
case 4800:
return B4800;
case 9600:
return B9600;
case 19200:
return B19200;
case 38400:
return B38400;
#ifdef B76800
case 76800:
return B76800;
#endif
#ifdef B14400
case 14400:
return B14400;
#endif
#ifdef B28800
case 28800:
return B28800;
#endif
case 57600:
return B57600;
case 115200:
return B115200;
case 460800:
return B460800;
case 921600:
return B921600;
default:
snprintf(buf, sizeof(buf), "%u%s", baudrate,
_(": Unknown baudrate"));
return phone_error(NULL, buf, baudrate);
}
}
/* gsm_delete */
void gsm_delete(GSM * gsm)
{
gsm_modem_delete(gsm->modem);
if(gsm->rd_source != 0)
g_source_remove(gsm->rd_source);
gsm->rd_source = 0;
_gsm_queue_flush(gsm);
free(gsm->device);
free(gsm);
}
/* accessors */
/* gsm_get_retry */
unsigned int gsm_get_retry(GSM * gsm)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s() => %u\n", __func__, gsm->retry);
#endif
return gsm->retry;
}
/* gsm_set_callback */
void gsm_set_callback(GSM * gsm, GSMCallback callback, gpointer data)
{
gsm->callback = callback;
gsm->callback_data = data;
}
/* gsm_set_call_presentation */
int gsm_set_call_presentation(GSM * gsm, int set)
{
return gsm_modem_set_call_presentation(gsm->modem, (set != 0) ? TRUE
: FALSE);
}
/* gsm_set_extended_errors */
int gsm_set_extended_errors(GSM * gsm, int extended)
{
return gsm_modem_set_extended_errors(gsm->modem, (extended != 0) ? TRUE
: FALSE);
}
/* gsm_set_extended_ring_reports */
int gsm_set_extended_ring_reports(GSM * gsm, gboolean extended)
{
return gsm_modem_set_extended_ring_reports(gsm->modem, extended);
}
/* gsm_set_functional */
int gsm_set_functional(GSM * gsm, int functional)
{
return gsm_modem_set_functional(gsm->modem, (functional != 0) ? TRUE
: FALSE);
}
/* gsm_set_line_presentation */
int gsm_set_line_presentation(GSM * gsm, int set)
{
return gsm_modem_set_line_presentation(gsm->modem, (set != 0) ? TRUE
: FALSE);
}
/* gsm_set_operator_format */
int gsm_set_operator_format(GSM * gsm, GSMOperatorFormat format)
{
return gsm_modem_set_operator_format(gsm->modem, format);
}
/* gsm_set_operator_mode */
int gsm_set_operator_mode(GSM * gsm, GSMOperatorMode mode)
{
return gsm_modem_set_operator_mode(gsm->modem, mode);
}
/* gsm_set_registration_report */
int gsm_set_registration_report(GSM * gsm, GSMRegistrationReport report)
{
int ret;
ret = gsm_modem_set_registration_report(gsm->modem, report);
ret |= gsm_fetch_registration(gsm);
return ret;
}
/* gsm_set_retry */
int gsm_set_retry(GSM * gsm, unsigned int retry)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(%u)\n", __func__, retry);
#endif
gsm->retry = retry;
return 0;
}
/* useful */
/* gsm_call */
int gsm_call(GSM * gsm, GSMCallType calltype, char const * number)
{
if(number == NULL)
return gsm_modem_call_last(gsm->modem, calltype);
/* FIXME if the number is not valid try from the address book */
return gsm_modem_call(gsm->modem, calltype, number);
}
/* gsm_call_answer */
int gsm_call_answer(GSM * gsm)
{
return gsm_modem_call_answer(gsm->modem);
}
/* gsm_call_contact */
int gsm_call_contact(GSM * gsm, GSMCallType calltype, unsigned int index)
{
return gsm_modem_call_contact(gsm->modem, calltype, index);
}
/* gsm_call_hangup */
int gsm_call_hangup(GSM * gsm)
{
return gsm_modem_call_hangup(gsm->modem);
}
/* gsm_call_reject */
int gsm_call_reject(GSM * gsm)
{
return gsm_modem_call_reject(gsm->modem);
}
/* gsm_enter_sim_pin */
int gsm_enter_sim_pin(GSM * gsm, char const * code)
{
if(code == NULL)
return gsm_modem_is_pin_valid(gsm->modem);
return gsm_modem_enter_sim_pin(gsm->modem, code);
}
/* gsm_event */
int gsm_event(GSM * gsm, GSMEventType type, ...)
{
va_list ap;
GSMEvent * event = &gsm->event;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(%d)\n", __func__, type);
#endif
va_start(ap, type);
switch(type)
{
case GSM_EVENT_TYPE_ERROR:
event->error.error = va_arg(ap, GSMError);
event->error.message = va_arg(ap, char const *);
break;
case GSM_EVENT_TYPE_CALL_PRESENTATION:
event->call_presentation.number = va_arg(ap,
char const *);
event->call_presentation.format = va_arg(ap,
unsigned int);
break;
case GSM_EVENT_TYPE_CONTACT:
event->contact.index = va_arg(ap, unsigned int);
event->contact.name = va_arg(ap, char const *);
event->contact.number = va_arg(ap, char const *);
break;
case GSM_EVENT_TYPE_CONTACT_LIST:
event->contact_list.start = va_arg(ap, unsigned int);
event->contact_list.end = va_arg(ap, unsigned int);
break;
case GSM_EVENT_TYPE_FUNCTIONAL:
event->functional.functional = va_arg(ap, unsigned int);
break;
case GSM_EVENT_TYPE_INCOMING_CALL:
event->incoming_call.calltype = va_arg(ap,
unsigned int);
break;
case GSM_EVENT_TYPE_INCOMING_MESSAGE:
event->incoming_message.memory = va_arg(ap,
char const *);
event->incoming_message.index = va_arg(ap,
unsigned int);
break;
case GSM_EVENT_TYPE_MESSAGE_LIST:
event->message_list.start = va_arg(ap, unsigned int);
event->message_list.end = va_arg(ap, unsigned int);
break;
case GSM_EVENT_TYPE_MESSAGE_SENT:
event->message_sent.mr = va_arg(ap, unsigned int);
break;
case GSM_EVENT_TYPE_OPERATOR:
event->operator.mode = va_arg(ap, GSMOperatorMode);
event->operator.format = va_arg(ap, GSMOperatorFormat);
event->operator.operator = va_arg(ap, char const *);
event->operator.lai = va_arg(ap, unsigned int);
break;
case GSM_EVENT_TYPE_PHONE_ACTIVITY:
event->phone_activity.activity = va_arg(ap,
GSMPhoneActivity);
break;
case GSM_EVENT_TYPE_REGISTRATION:
event->registration.n = va_arg(ap, unsigned int);
event->registration.stat = va_arg(ap, unsigned int);
event->registration.area = va_arg(ap, unsigned int);
event->registration.cell = va_arg(ap, unsigned int);
break;
case GSM_EVENT_TYPE_SIGNAL_LEVEL:
event->signal_level.level = va_arg(ap, gdouble);
break;
case GSM_EVENT_TYPE_SIM_PIN_VALID:
break;
case GSM_EVENT_TYPE_STATUS:
event->status.status = va_arg(ap, GSMStatus);
break;
}
va_end(ap);
return _gsm_event_send(gsm, type);
}
/* gsm_fetch_contact_list */
int gsm_fetch_contact_list(GSM * gsm)
{
return gsm_modem_get_contact_list(gsm->modem);
}
/* gsm_fetch_contacts */
int gsm_fetch_contacts(GSM * gsm, unsigned int start, unsigned int end)
{
return gsm_modem_get_contacts(gsm->modem, start, end);
}
/* gsm_fetch_message_list */
int gsm_fetch_message_list(GSM * gsm)
{
return gsm_modem_get_message_list(gsm->modem);
}
/* gsm_fetch_messages */
int gsm_fetch_messages(GSM * gsm, unsigned int start, unsigned int end)
{
return gsm_modem_get_messages(gsm->modem, start, end);
}
/* gsm_fetch_operator */
int gsm_fetch_operator(GSM * gsm)
{
return gsm_modem_get_operator(gsm->modem);
}
/* gsm_fetch_registration */
int gsm_fetch_registration(GSM * gsm)
{
return gsm_modem_get_registration(gsm->modem);
}
/* gsm_fetch_signal_level */
int gsm_fetch_signal_level(GSM * gsm)
{
return gsm_modem_get_signal_level(gsm->modem);
}
/* queries */
/* gsm_is_functional */
int gsm_is_functional(GSM * gsm)
{
return gsm_modem_is_functional(gsm->modem);
}
/* gsm_is_phone_active */
int gsm_is_phone_active(GSM * gsm)
{
return gsm_modem_is_phone_active(gsm->modem);
}
/* gsm_is_pin_needed */
int gsm_is_pin_needed(GSM * gsm)
{
return gsm_modem_is_pin_needed(gsm->modem);
}
/* gsm_is_pin_valid */
int gsm_is_pin_valid(GSM * gsm)
{
return gsm_modem_is_pin_valid(gsm->modem);
}
/* gsm_is_registered */
int gsm_is_registered(GSM * gsm)
{
return gsm_modem_is_registered(gsm->modem);
}
/* queue management */
/* gsm_queue */
GSMCommand * gsm_queue(GSM * gsm, char const * command)
{
GSMCommand * gsmc;
if(command == NULL || command[0] == '\0')
return NULL;
if((gsmc = gsm_command_new(command)) == NULL)
return NULL;
if(gsm_queue_command(gsm, gsmc) == 0)
return gsmc;
gsm_command_delete(gsmc);
return NULL;
}
/* gsm_queue_command */
int gsm_queue_command(GSM * gsm, GSMCommand * gsmc)
{
GSMPriority priority;
GSList * l;
GSMCommand * p;
if(gsmc == NULL)
return 1;
/* the GSM_PRIORITY_HIGHEST priority is meant to avoid races */
if((priority = gsm_command_get_priority(gsmc)) > GSM_PRIORITY_HIGH)
priority = GSM_PRIORITY_HIGH;
for(l = gsm->queue; l != NULL; l = l->next)
{
p = l->data;
if(gsm_command_get_priority(p) < priority)
break;
}
if(l != NULL)
gsm->queue = g_slist_insert_before(gsm->queue, l, gsmc);
else if(gsm->queue == NULL && gsm->mode == GSM_MODE_COMMAND)
{
gsm->queue = g_slist_append(gsm->queue, gsmc);
_gsm_queue_push(gsm);
}
else if(gsm->mode == GSM_MODE_INIT && gsm->wr_source == 0)
{
gsm->queue = g_slist_append(gsm->queue, gsmc);
_gsm_queue_push(gsm);
}
else
gsm->queue = g_slist_append(gsm->queue, gsmc);
return 0;
}
/* gsm_queue_full */
int gsm_queue_full(GSM * gsm, GSMPriority priority, char const * command,
GSMError error, GSMCommandCallback callback)
{
return gsm_queue_full_mode(gsm, priority, command, error, callback,
GSM_MODE_COMMAND);
}
/* gsm_queue_full_mode */
int gsm_queue_full_mode(GSM * gsm, GSMPriority priority, char const * command,
GSMError error, GSMCommandCallback callback, GSMMode mode)
{
GSMCommand * gsmc;
if(command == NULL || command[0] == '\0')
return 1;
if((gsmc = gsm_command_new(command)) == NULL)
return 1;
gsm_command_set_priority(gsmc, priority);
gsm_command_set_error(gsmc, error);
gsm_command_set_callback(gsmc, callback);
gsm_command_set_mode(gsmc, mode);
if(gsm_queue_command(gsm, gsmc) == 0)
return 0;
gsm_command_delete(gsmc);
return 1;
}
/* gsm_queue_with_error */
int gsm_queue_with_error(GSM * gsm, char const * command, GSMError error)
{
GSMCommand * gsmc;
if((gsmc = gsm_queue(gsm, command)) == NULL)
return 1;
gsm_command_set_error(gsmc, error);
return 0;
}
/* gsm_reset */
int gsm_reset(GSM * gsm, unsigned int delay)
{
_gsm_queue_flush(gsm);
if(gsm->source != 0)
g_source_remove(gsm->source);
if(delay > 0)
gsm->source = g_timeout_add(delay, _on_reset, gsm);
else
gsm->source = g_idle_add(_on_reset, gsm);
return 0;
}
/* gsm_send_message */
int gsm_send_message(GSM * gsm, char const * number, char const * text)
{
return gsm_modem_send_message(gsm->modem, number, text);
}
/* private */
/* functions */
/* events */
/* gsm_event_send */
static int _gsm_event_send(GSM * gsm, GSMEventType type)
{
int ret;
char buf[80];
gsm->event.type = type;
ret = gsm->callback(&gsm->event, gsm->callback_data);
if(ret == 0)
return 0;
snprintf(buf, sizeof(buf), "%u: %s", type, _("Event not handled"));
return phone_error(NULL, buf, ret);
}
/* gsm_event_set_status */
static int _gsm_event_set_status(GSM * gsm, GSMStatus status)
{
if(gsm->status == status)
return 0;
gsm->status = status;
return gsm_event(gsm, GSM_EVENT_TYPE_STATUS, status);
}
/* gsm_parse */
static int _parse_pdu(GSM * gsm);
static int _parse_do(GSM * gsm, size_t * i);
static int _gsm_parse(GSM * gsm)
{
int ret = 0;
size_t i = 0;
char * p;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s() cnt=%lu\n", __func__, gsm->rd_buf_cnt);
#endif
while(i < gsm->rd_buf_cnt)
{
if(gsm->rd_buf[i++] != '\r' && gsm->rd_buf[i - 1] != '\n')
continue;
gsm->rd_buf[i - 1] = '\0';
if(i < gsm->rd_buf_cnt && gsm->rd_buf[i] == '\n')
i++;
if(gsm->rd_buf[0] != '\0')
ret |= _parse_do(gsm, &i);
gsm->rd_buf_cnt -= i;
memmove(gsm->rd_buf, &gsm->rd_buf[i], gsm->rd_buf_cnt);
if((p = realloc(gsm->rd_buf, gsm->rd_buf_cnt)) != NULL)
gsm->rd_buf = p; /* we can ignore errors... */
else if(gsm->rd_buf_cnt == 0)
gsm->rd_buf = NULL; /* ...except when it's not one */
i = 0;
}
if(gsm->mode == GSM_MODE_PDU)
return _parse_pdu(gsm);
return ret;
}
static int _parse_pdu(GSM * gsm)
{
size_t i = 0;
char * p;
if(gsm->rd_buf_cnt < 2)
return 0;
if(gsm->rd_buf[i++] == '>' && gsm->rd_buf[i++] == ' ')
{
_gsm_queue_pop(gsm);
_gsm_queue_push(gsm);
}
gsm->rd_buf_cnt -= i;
memmove(gsm->rd_buf, &gsm->rd_buf[i], gsm->rd_buf_cnt);
if((p = realloc(gsm->rd_buf, gsm->rd_buf_cnt)) != NULL)
gsm->rd_buf = p; /* we can ignore errors... */
else if(gsm->rd_buf_cnt == 0)
gsm->rd_buf = NULL; /* ...except when it's not one */
return 0;
}
static int _parse_do(GSM * gsm, size_t * i)
{
gboolean answered = FALSE;
if(gsm->mode == GSM_MODE_INIT)
{
if(strcmp(gsm->rd_buf, "OK") != 0)
return 0;
if(gsm->source != 0)
g_source_remove(gsm->source);
gsm->source = 0;
*i = gsm->rd_buf_cnt; /* XXX ugly: flush read buffer */
g_io_channel_flush(gsm->channel, NULL); /* XXX check errors? */
gsm->mode = GSM_MODE_COMMAND;
gsm_modem_set_echo(gsm->modem, FALSE);
gsm_modem_set_verbose(gsm->modem, TRUE);
/* XXX should probably not be set by us */
gsm_modem_set_extended_errors(gsm->modem, TRUE);
gsm_modem_set_extended_ring_reports(gsm->modem, TRUE);
gsm_modem_set_call_presentation(gsm->modem, TRUE);
gsm_modem_get_model(gsm->modem);
_gsm_event_set_status(gsm, GSM_STATUS_INITIALIZED);
_gsm_queue_push(gsm);
}
else if(gsm->mode == GSM_MODE_COMMAND)
{
_gsm_parse_line(gsm, gsm->rd_buf, &answered);
if(answered)
{
_gsm_queue_pop(gsm);
_gsm_queue_push(gsm);
}
}
return 0;
}
/* gsm_parse_line */
static int _gsm_parse_line(GSM * gsm, char const * line, gboolean * answered)
{
size_t i;
GSMCommand * gsmc;
GSMCommandCallback callback;
GSMError error = GSM_ERROR_UNKNOWN;
char const * cmd;
size_t j;
int c;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, line);
#endif
if(answered != NULL)
*answered = FALSE;
if(strncmp(line, "AT", 2) == 0) /* ignore echo (tighter check?) */
return 0;
if(strcmp(line, "RING") == 0)
{
gsm_event(gsm, GSM_EVENT_TYPE_INCOMING_CALL,
GSM_CALL_TYPE_UNKNOWN);
return 0;
}
gsmc = g_slist_nth_data(gsm->queue, 0);
if(strcmp(line, "OK") == 0)
{
/* XXX the trigger may not have been called (if any) */
if(answered != NULL)
*answered = TRUE;
/* XXX call it only if we were really answered? */
if(gsmc != NULL && (callback = gsm_command_get_callback(gsmc))
!= NULL)
callback(gsm);
return 0;
}
for(i = 0; _gsm_triggers[i].trigger != NULL; i++)
if(strncmp(line, _gsm_triggers[i].trigger,
_gsm_triggers[i].trigger_cnt) == 0)
return _gsm_triggers[i].callback(gsm,
&line[_gsm_triggers[i].trigger_cnt],
answered);
if(strcmp(line, "ERROR") == 0)
{
if(answered != NULL)
*answered = TRUE;
if(gsmc != NULL)
error = gsm_command_get_error(gsmc);
gsm_event(gsm, GSM_EVENT_TYPE_ERROR, error, _("Unknown error"));
return 0;
}
/* XXX look for a potential trigger */
if(gsmc != NULL && (cmd = gsm_command_get_command(gsmc)) != NULL
&& strncmp(cmd, "AT+", 3) == 0 && isupper((c = cmd[3])))
{
for(cmd += 2, j = 2; cmd[j] != '\0' && isupper((c = cmd[j]));
j++);
for(i = 0; _gsm_triggers[i].trigger != NULL; i++)
if(strncmp(cmd, _gsm_triggers[i].trigger, j) == 0)
return _gsm_triggers[i].callback(gsm, line,
answered);
}
return 1;
}
/* queue management */
/* _gsm_queue_flush */
static void _gsm_queue_flush(GSM * gsm)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
g_slist_foreach(gsm->queue, (GFunc)gsm_command_delete, NULL);
g_slist_free(gsm->queue);
gsm->queue = NULL;
free(gsm->rd_buf);
gsm->rd_buf = NULL;
gsm->rd_buf_cnt = 0;
if(gsm->rd_source != 0)
{
g_source_remove(gsm->rd_source);
gsm->rd_source = 0;
}
free(gsm->wr_buf);
gsm->wr_buf = NULL;
gsm->wr_buf_cnt = 0;
if(gsm->wr_source != 0)
{
g_source_remove(gsm->wr_source);
gsm->wr_source = 0;
}
if(gsm->source != 0)
{
g_source_remove(gsm->source);
gsm->source = 0;
}
}
/* gsm_queue_pop */
static void _gsm_queue_pop(GSM * gsm)
{
GSMCommand * gsmc;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
if(gsm->queue == NULL)
return;
gsmc = gsm->queue->data;
gsm_command_delete(gsmc);
gsm->queue = g_slist_remove(gsm->queue, gsmc);
#if 0 /* FIXME this is useless */
if(gsm->mode != GSM_MODE_COMMAND)
return;
#endif
}
/* gsm_queue_push */
static int _gsm_queue_push(GSM * gsm)
{
GSMCommand * gsmc;
char const * command;
char const suffix[] = "\r\n";
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
if(gsm->queue == NULL)
return 0;
gsmc = gsm->queue->data;
command = gsm_command_get_command(gsmc);
gsm->wr_buf_cnt = strlen(command) + sizeof(suffix);
if((gsm->wr_buf = malloc(gsm->wr_buf_cnt)) == NULL)
return 1;
snprintf(gsm->wr_buf, gsm->wr_buf_cnt--, "%s%s", command, suffix);
/* FIXME shouldn't it always be the case? flush input queue first? */
if(gsm->channel != NULL && gsm->wr_source == 0)
{
gsm->wr_source = g_io_add_watch(gsm->channel, G_IO_OUT,
_on_watch_can_write, gsm);
if(gsm->source != 0 && gsm->mode != GSM_MODE_INIT)
{
/* XXX still not sure it is always _on_timeout */
g_source_remove(gsm->source);
gsm->source = 0;
}
}
return 0;
}
/* triggers */
/* gsm_trigger_busy */
static int _gsm_trigger_busy(GSM * gsm, char const * result,
gboolean * answered)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, result);
#endif
if(answered != NULL)
*answered = TRUE;
return gsm_event(gsm, GSM_EVENT_TYPE_ERROR, GSM_ERROR_BUSY, "BUSY");
}
/* gsm_trigger_cfun */
static int _gsm_trigger_cfun(GSM * gsm, char const * result)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, result);
#endif
if(sscanf(result, "%u", &gsm->event.functional.functional) != 1)
/* XXX nicer message */
return gsm_event(gsm, GSM_EVENT_TYPE_ERROR,
GSM_ERROR_FUNCTIONAL_FAILED, result);
return _gsm_event_send(gsm, GSM_EVENT_TYPE_FUNCTIONAL);
}
/* gsm_trigger_cgmm */
static int _gsm_trigger_cgmm(GSM * gsm, char const * result)
{
size_t i;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, result);
#endif
for(i = 0; _gsm_models[i].model != NULL; i++)
if(strcmp(_gsm_models[i].model, result) == 0)
break;
if(_gsm_models[i].model == NULL)
return 1; /* we do not know this model */
gsm_modem_set_quirks(gsm->modem, _gsm_models[i].quirks);
return 0;
}
/* gsm_trigger_clip */
static int _gsm_trigger_clip(GSM * gsm, char const * result)
{
char number[32];
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, result);
#endif
if(sscanf(result, "\"%31[^\"]\", %u", number,
&gsm->event.call_presentation.format) != 2)
return 1; /* XXX report error? */
number[sizeof(number) - 1] = '\0';
gsm->event.call_presentation.number = number;
return _gsm_event_send(gsm, GSM_EVENT_TYPE_CALL_PRESENTATION);
}
/* gsm_trigger_cme_error */
static int _gsm_trigger_cme_error(GSM * gsm, char const * result,
gboolean * answered)
{
int code;
char * p;
size_t i;
GSMError type = GSM_ERROR_UNKNOWN;
char const * error;
GSMCommand * gsmc;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, result);
#endif
error = _("Unknown error");
if(answered != NULL)
*answered = TRUE;
code = strtol(result, &p, 10);
if(result[0] == '\0' || *p != '\0')
return 1;
for(i = 0; _gsm_cme_errors[i].error != NULL; i++)
if(_gsm_cme_errors[i].code == code)
break;
if(_gsm_cme_errors[i].error != NULL)
error = _(_gsm_cme_errors[i].error);
if(gsm->queue != NULL && (gsmc = gsm->queue->data) != NULL)
type = gsm_command_get_error(gsmc);
return gsm_event(gsm, GSM_EVENT_TYPE_ERROR, type, error);
}
/* gsm_trigger_cms_error */
static int _gsm_trigger_cms_error(GSM * gsm, char const * result)
{
int code;
char * p;
size_t i;
GSMError error = GSM_ERROR_UNKNOWN;
GSMCommand * gsmc;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, result);
#endif
code = strtol(result, &p, 10);
if(result[0] == '\0' || *p != '\0')
return 1;
for(i = 0; _gsm_cms_errors[i].error != NULL; i++)
if(_gsm_cms_errors[i].code == code)
break;
if(_gsm_cms_errors[i].error == NULL)
return 1; /* XXX report an error anyway? */
if(gsm->queue != NULL && (gsmc = gsm->queue->data) != NULL)
error = gsm_command_get_error(gsmc);
return gsm_event(gsm, GSM_EVENT_TYPE_ERROR, error,
_(_gsm_cms_errors[i].error));
}
/* gsm_trigger_cmgl */
static int _gsm_trigger_cmgl(GSM * gsm, char const * result)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, result);
#endif
if(sscanf(result, "(%u-%u)", &gsm->event.message_list.start,
&gsm->event.message_list.end) != 2)
return 1;
return _gsm_event_send(gsm, GSM_EVENT_TYPE_MESSAGE_LIST);
}
/* gsm_trigger_cmgs */
static int _gsm_trigger_cmgs(GSM * gsm, char const * result)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, result);
#endif
if(sscanf(result, "%u", &gsm->event.message_sent.mr) != 1)
return 1;
return _gsm_event_send(gsm, GSM_EVENT_TYPE_MESSAGE_SENT);
}
/* gsm_trigger_cmti */
static int _gsm_trigger_cmti(GSM * gsm, char const * result)
{
char memory[32];
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, result);
#endif
if(sscanf(result, "\"%31[^\"]\",%u", memory,
&gsm->event.incoming_message.index) != 2)
return 1;
memory[sizeof(memory) - 1] = '\0';
gsm->event.incoming_message.memory = memory;
return 0;
}
/* gsm_trigger_connect */
static int _gsm_trigger_connect(GSM * gsm, char const * result,
gboolean * answered)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, result);
#endif
if(answered != NULL)
*answered = TRUE;
/* FIXME implement pass-through */
/* FIXME reset is probably not enough (send "+++"?) */
return gsm_reset(gsm, gsm->retry);
}
/* gsm_trigger_cops */
static int _gsm_trigger_cops(GSM * gsm, char const * result)
{
char operator[32];
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, result);
#endif
gsm->event.operator.operator = operator;
gsm->event.operator.lai = 0;
if(sscanf(result, "%u,%u,\"%31[^\"]\",%u", &gsm->event.operator.mode,
&gsm->event.operator.format, operator,
&gsm->event.operator.lai) >= 3)
return _gsm_event_send(gsm, GSM_EVENT_TYPE_OPERATOR);
return 1;
}
/* gsm_trigger_cpas */
static int _gsm_trigger_cpas(GSM * gsm, char const * result)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, result);
#endif
if(sscanf(result, "%u", &gsm->event.phone_activity.activity) != 1)
return 1;
return _gsm_event_send(gsm, GSM_EVENT_TYPE_PHONE_ACTIVITY);
}
/* _gsm_trigger_cpbr */
static int _gsm_trigger_cpbr(GSM * gsm, char const * result)
{
unsigned int start;
unsigned int end;
char number[32];
char name[32];
gchar * p;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, result);
#endif
if(sscanf(result, "(%u-%u)", &start, &end) == 2)
return gsm_event(gsm, GSM_EVENT_TYPE_CONTACT_LIST, start, end);
if(sscanf(result, "%u,\"%31[^\"]\",145,\"%31[^\"]\"",
&gsm->event.contact.index, number, name) != 3
&& sscanf(result, "%u,\"%31[^\"]\",129,\"%31[^\"]\"",
&gsm->event.contact.index, number, name) != 3)
return 1;
number[sizeof(number) - 1] = '\0';
gsm->event.contact.number = number;
name[sizeof(name) - 1] = '\0';
gsm->event.contact.name = name;
if((p = g_convert(name, -1, "UTF-8", "ISO-8859-1", NULL, NULL, NULL))
!= NULL)
{
snprintf(name, sizeof(name), "%s", p);
g_free(p);
}
return _gsm_event_send(gsm, GSM_EVENT_TYPE_CONTACT);
}
/* _gsm_trigger_cpin */
static int _gsm_trigger_cpin(GSM * gsm, char const * result)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, result);
#endif
if(strcmp(result, "READY") == 0)
return _gsm_event_set_status(gsm, GSM_STATUS_READY);
if(strcmp(result, "SIM PIN") == 0)
return gsm_event(gsm, GSM_EVENT_TYPE_ERROR,
GSM_ERROR_SIM_PIN_REQUIRED, NULL);
/* XXX nicer message */
return gsm_event(gsm, GSM_EVENT_TYPE_ERROR, GSM_ERROR_UNKNOWN, result);
}
/* gsm_trigger_creg */
static int _gsm_trigger_creg(GSM * gsm, char const * result)
{
int ret;
int res;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, result);
#endif
if((res = sscanf(result, "%u,%u,%X,%X", &gsm->event.registration.n,
&gsm->event.registration.stat,
&gsm->event.registration.area,
&gsm->event.registration.cell)) == 4)
ret = _gsm_event_send(gsm, GSM_EVENT_TYPE_REGISTRATION);
else if(res == 2)
{
gsm->event.registration.area = 0;
gsm->event.registration.cell = 0;
ret = _gsm_event_send(gsm, GSM_EVENT_TYPE_REGISTRATION);
}
else
return 1;
switch(gsm->event.registration.stat)
{
case GSM_REGISTRATION_STATUS_NOT_SEARCHING:
ret |= _gsm_event_set_status(gsm, GSM_STATUS_READY);
break;
case GSM_REGISTRATION_STATUS_NOT_REGISTERED:
ret |= _gsm_event_set_status(gsm,
GSM_STATUS_REGISTERING);
break;
case GSM_REGISTRATION_STATUS_DENIED:
ret |= _gsm_event_set_status(gsm,
GSM_STATUS_REGISTERING_DENIED);
break;
case GSM_REGISTRATION_STATUS_REGISTERED_HOME:
ret |= _gsm_event_set_status(gsm,
GSM_STATUS_REGISTERED_HOME);
break;
case GSM_REGISTRATION_STATUS_REGISTERED_ROAMING:
ret |= _gsm_event_set_status(gsm,
GSM_STATUS_REGISTERED_ROAMING);
break;
case GSM_REGISTRATION_STATUS_UNKNOWN:
default:
ret |= _gsm_event_set_status(gsm, GSM_STATUS_UNKNOWN);
break;
}
return ret;
}
/* gsm_trigger_cring */
static int _gsm_trigger_cring(GSM * gsm, char const * result)
{
GSMCallType calltype = GSM_CALL_TYPE_UNKNOWN;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, result);
#endif
/* XXX implement the other call types */
if(strcmp(result, "VOICE") == 0)
calltype = GSM_CALL_TYPE_VOICE;
return gsm_event(gsm, GSM_EVENT_TYPE_INCOMING_CALL, calltype);
}
/* _gsm_trigger_csq */
static int _gsm_trigger_csq(GSM * gsm, char const * result)
{
unsigned int rssi;
unsigned int ber;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, result);
#endif
if(sscanf(result, "%u,%u", &rssi, &ber) != 2)
return 1;
gsm->event.signal_level.level = rssi;
if(rssi > 31)
gsm->event.signal_level.level /= 0.0;
else
gsm->event.signal_level.level /= 32;
return _gsm_event_send(gsm, GSM_EVENT_TYPE_SIGNAL_LEVEL);
}
/* gsm_trigger_no_answer */
static int _gsm_trigger_no_answer(GSM * gsm, char const * result,
gboolean * answered)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, result);
#endif
if(answered != NULL)
*answered = TRUE;
return gsm_event(gsm, GSM_EVENT_TYPE_ERROR, GSM_ERROR_NO_ANSWER,
"NO ANSWER");
}
/* gsm_trigger_no_carrier */
static int _gsm_trigger_no_carrier(GSM * gsm, char const * result,
gboolean * answered)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, result);
#endif
if(answered != NULL)
*answered = TRUE;
return gsm_event(gsm, GSM_EVENT_TYPE_ERROR, GSM_ERROR_NO_CARRIER,
"NO CARRIER");
}
/* gsm_trigger_no_dialtone */
static int _gsm_trigger_no_dialtone(GSM * gsm, char const * result,
gboolean * answered)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, result);
#endif
if(answered != NULL)
*answered = TRUE;
return gsm_event(gsm, GSM_EVENT_TYPE_ERROR, GSM_ERROR_NO_DIALTONE,
"NO DIALTONE");
}
/* callbacks */
/* on_reset */
static int _reset_do(GSM * gsm, int fd);
static gboolean _reset_settle(gpointer data);
static gboolean _on_reset(gpointer data)
{
GSM * gsm = data;
int fd;
char buf[256];
GError * error = NULL;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
if(gsm->source != 0)
g_source_remove(gsm->source);
if(gsm->channel != NULL)
{
/* XXX should the file descriptor also be freed? */
g_io_channel_shutdown(gsm->channel, TRUE, &error);
g_io_channel_unref(gsm->channel);
gsm->channel = NULL;
}
if((fd = open(gsm->device, O_RDWR | O_NONBLOCK)) < 0
|| _reset_do(gsm, fd) != 0)
{
snprintf(buf, sizeof(buf), "%s%s%s", gsm->device, ": ",
strerror(errno));
if(fd >= 0)
close(fd);
if(gsm->retry > 0)
gsm->source = g_timeout_add(gsm->retry, _on_reset, gsm);
gsm->source = 0;
return phone_error(NULL, buf, FALSE);
}
gsm->channel = g_io_channel_unix_new(fd);
if((g_io_channel_set_encoding(gsm->channel, NULL, &error))
!= G_IO_STATUS_NORMAL)
phone_error(NULL, error->message, 0);
g_io_channel_set_buffered(gsm->channel, FALSE);
gsm->rd_source = g_io_add_watch(gsm->channel, G_IO_IN,
_on_watch_can_read, gsm);
if(gsm->wr_buf_cnt > 0)
gsm->wr_source = g_io_add_watch(gsm->channel, G_IO_OUT,
_on_watch_can_write, gsm);
gsm->source = g_timeout_add(500, _reset_settle, gsm);
_reset_settle(gsm);
return FALSE;
}
static int _reset_do(GSM * gsm, int fd)
{
struct stat st;
int fl;
struct termios term;
if(flock(fd, LOCK_EX | LOCK_NB) != 0)
return 1;
fl = fcntl(fd, F_GETFL, 0);
if(fcntl(fd, F_SETFL, fl & ~O_NONBLOCK) == -1)
return 1;
if(fstat(fd, &st) != 0)
return 1;
if(st.st_mode & S_IFCHR) /* character special */
{
if(tcgetattr(fd, &term) != 0)
return 1;
term.c_cflag &= ~(CSIZE | PARENB);
term.c_cflag |= CS8;
term.c_cflag |= CREAD;
term.c_cflag |= CLOCAL;
if(gsm->hwflow)
term.c_cflag |= CRTSCTS;
else
term.c_cflag &= ~CRTSCTS;
term.c_iflag = (IGNPAR | IGNBRK);
term.c_lflag = 0;
term.c_oflag = 0;
term.c_cc[VMIN] = 1;
term.c_cc[VTIME] = 0;
if(cfsetispeed(&term, 0) != 0) /* same speed as output speed */
phone_error(NULL, gsm->device, 0); /* go on anyway */
if(cfsetospeed(&term, gsm->baudrate) != 0)
phone_error(NULL, gsm->device, 0); /* go on anyway */
if(tcsetattr(fd, TCSAFLUSH, &term) != 0)
return 1;
}
return 0;
}
static gboolean _reset_settle(gpointer data)
{
GSM * gsm = data;
gsm_modem_reset(gsm->modem);
return TRUE;
}
/* on_timeout */
static gboolean _on_timeout(gpointer data)
{
GSM * gsm = data;
GSMCommand * gsmc;
char const * cmd;
size_t len;
char * p;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
gsm->source = 0;
/* FIXME this code partly duplicates _gsm_queue_push() */
/* check if the write handler is still running */
if(gsm->channel == NULL || gsm->wr_source != 0)
return FALSE;
if(gsm->queue == NULL || (gsmc = gsm->queue->data) == NULL)
return FALSE;
if((cmd = gsm_command_get_command(gsmc)) == NULL)
return FALSE;
len = strlen(cmd) + 2;
/* re-inject the command */
if((p = realloc(gsm->wr_buf, len + 1)) == NULL)
return FALSE;
gsm->wr_buf = p;
snprintf(p, len + 1, "%s%s", cmd, "\r\n");
gsm->wr_buf_cnt = len;
gsm->wr_source = g_io_add_watch(gsm->channel, G_IO_OUT,
_on_watch_can_write, gsm);
return FALSE;
}
/* on_watch_can_read */
static gboolean _on_watch_can_read(GIOChannel * source, GIOCondition condition,
gpointer data)
{
GSM * gsm = data;
gsize cnt = 0;
GError * error = NULL;
GIOStatus status;
char * p;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
if(condition != G_IO_IN || source != gsm->channel)
return FALSE; /* should not happen */
if((p = realloc(gsm->rd_buf, gsm->rd_buf_cnt + 256)) == NULL)
return TRUE; /* XXX retries immediately (delay?) */
gsm->rd_buf = p;
status = g_io_channel_read_chars(source, &gsm->rd_buf[gsm->rd_buf_cnt],
256, &cnt, &error);
#ifdef DEBUG
fprintf(stderr, "%s", "DEBUG: MODEM: ");
fwrite(&gsm->rd_buf[gsm->rd_buf_cnt], sizeof(*p), cnt, stderr);
#endif
gsm->rd_buf_cnt += cnt;
switch(status)
{
case G_IO_STATUS_NORMAL:
break;
case G_IO_STATUS_ERROR:
phone_error(NULL, error->message, 0);
case G_IO_STATUS_EOF:
default: /* should not happen... */
if(gsm->retry > 0)
gsm_reset(gsm, gsm->retry);
gsm->rd_source = 0;
return FALSE;
}
_gsm_parse(gsm);
return TRUE;
}
/* on_watch_can_write */
static gboolean _on_watch_can_write(GIOChannel * source, GIOCondition condition,
gpointer data)
{
GSM * gsm = data;
gsize cnt = 0;
GError * error = NULL;
GIOStatus status;
char * p;
GSMCommand * gsmc;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s() cnt=%lu\n", __func__, gsm->wr_buf_cnt);
#endif
if(condition != G_IO_OUT || source != gsm->channel)
return FALSE; /* should not happen */
status = g_io_channel_write_chars(source, gsm->wr_buf, gsm->wr_buf_cnt,
&cnt, &error);
#ifdef DEBUG
fprintf(stderr, "%s", "DEBUG: PHONE: ");
fwrite(gsm->wr_buf, sizeof(*p), cnt, stderr);
#endif
if(cnt != 0) /* some data may have been written anyway */
{
gsm->wr_buf_cnt -= cnt;
memmove(gsm->wr_buf, &gsm->wr_buf[cnt], gsm->wr_buf_cnt);
if((p = realloc(gsm->wr_buf, gsm->wr_buf_cnt)) != NULL)
gsm->wr_buf = p; /* we can ignore errors... */
else if(gsm->wr_buf_cnt == 0)
gsm->wr_buf = NULL; /* ...except when it's not one */
}
switch(status)
{
case G_IO_STATUS_NORMAL:
break;
case G_IO_STATUS_ERROR:
phone_error(NULL, error->message, 0);
case G_IO_STATUS_EOF:
default: /* should not happen */
if(gsm->retry > 0)
gsm_reset(gsm, gsm->retry);
gsm->wr_source = 0;
return FALSE;
}
if(gsm->wr_buf_cnt > 0) /* there is more data to write */
return TRUE;
gsm->wr_source = 0;
if(gsm->mode == GSM_MODE_INIT)
_gsm_queue_pop(gsm);
else
{
if(gsm->queue != NULL && (gsmc = gsm->queue->data) != NULL)
gsm->mode = gsm_command_get_mode(gsmc);
if(gsm->source != 0)
g_source_remove(gsm->source);
gsm->source = g_timeout_add(2000, _on_timeout, gsm);
}
return FALSE;
}