int at_send_command_to_data_channel(const char *command, ATResponse **pp_outResponse, RILChannelCtx *p_channel) {
const char* line = NULL;
int ret = writeline(command, p_channel);
if (ret == 0) {
p_channel->p_response = at_response_new();
do {
line = readline(p_channel);
if (line != NULL)
RLOGI("readline: %s", line);
else
RLOGI("readline: EMPTY");
} while (line != NULL && !(strcmp(line, "OK") == 0 || strcmp(line, "NO CARRIER") == 0 || strStartsWith(line, "CONNECT") == 1 || strstr(line, "ERROR")));
if (line != NULL) {
RLOGI("process line: %s", line);
processLine(line, p_channel);
if (pp_outResponse == NULL) {
at_response_free(p_channel->p_response);
} else {
reverseIntermediates(p_channel->p_response);
*pp_outResponse = p_channel->p_response;
}
return 0;
}
}
return AT_ERROR_GENERIC;
}
void waitForTargetPPPStopped(RILChannelCtx *p_channel) {
const char* line = NULL;
int count = 0;
p_channel->p_response = at_response_new();
while (count < 60) {
line = readline(p_channel);
if (line != NULL && strcmp(line, "NO CARRIER") == 0) {
RLOGI("readline: %s [%d]", line, count);
break;
} else {
RLOGI("Still wait for NO CARRIER [%d]", count);
++count;
sleep(1);
}
}
at_response_free(p_channel->p_response);
}
static int at_send_command_full_nolock (const char *command, ATCommandType type,
const char *responsePrefix, const char *smspdu,
long long timeoutMsec, ATResponse **pp_outResponse)
{
int err = 0;
#ifndef USE_NP
struct timespec ts;
#endif /*USE_NP*/
if(sp_response != NULL) {
err = AT_ERROR_COMMAND_PENDING;
goto error;
}
err = writeline (command);
if (err < 0) {
goto error;
}
s_type = type;
s_responsePrefix = responsePrefix;
s_smsPDU = smspdu;
sp_response = at_response_new();
#ifndef USE_NP
if (timeoutMsec != 0) {
setTimespecRelative(&ts, timeoutMsec);
}
#endif /*USE_NP*/
while (sp_response->finalResponse == NULL && s_readerClosed == 0) {
if (timeoutMsec != 0) {
#ifdef USE_NP
err = pthread_cond_timeout_np(&s_commandcond, &s_commandmutex, timeoutMsec);
#else
err = pthread_cond_timedwait(&s_commandcond, &s_commandmutex, &ts);
#endif /*USE_NP*/
} else {
err = pthread_cond_wait(&s_commandcond, &s_commandmutex);
}
if (err == ETIMEDOUT) {
err = AT_ERROR_TIMEOUT;
goto error;
}
}
if (pp_outResponse == NULL) {
at_response_free(sp_response);
} else {
/* line reader stores intermediate responses in reverse order */
reverseIntermediates(sp_response);
*pp_outResponse = sp_response;
}
sp_response = NULL;
if(s_readerClosed > 0) {
err = AT_ERROR_CHANNEL_CLOSED;
goto error;
}
err = 0;
error:
clearPendingCommand();
return err;
}
/**
* Internal send_command implementation.
* Doesn't lock or call the timeout callback.
*
* timeoutMsec == 0 means infinite timeout.
*/
static int at_send_command_full_nolock (const char *command, ATCommandType type,
const char *responsePrefix, const char *smspdu,
long long timeoutMsec, ATResponse **pp_outResponse)
{
int err = AT_NOERROR;
struct atcontext *ac = getAtContext();
/* Default to NULL, to allow caller to free securely even if
* no response will be set below */
if (pp_outResponse != NULL)
*pp_outResponse = NULL;
/* FIXME This is to prevent future problems due to calls from other threads; should be revised. */
while (pthread_mutex_trylock(&ac->requestmutex) == EBUSY)
pthread_cond_wait(&ac->requestcond, &ac->commandmutex);
if(ac->response != NULL) {
err = AT_ERROR_COMMAND_PENDING;
goto finally;
}
ac->type = type;
ac->responsePrefix = responsePrefix;
ac->smsPDU = smspdu;
ac->response = at_response_new();
if (ac->response == NULL) {
err = AT_ERROR_MEMORY_ALLOCATION;
goto finally;
}
err = writeline (command);
if (err != AT_NOERROR)
goto finally;
while (ac->response->finalResponse == NULL && ac->readerClosed == 0) {
if (timeoutMsec != 0)
err = pthread_cond_timeout_np(&ac->commandcond, &ac->commandmutex, timeoutMsec);
else
err = pthread_cond_wait(&ac->commandcond, &ac->commandmutex);
if (err == ETIMEDOUT) {
err = AT_ERROR_TIMEOUT;
goto finally;
}
}
if (ac->response->success == 0) {
err = at_get_error(ac->response);
}
if (pp_outResponse == NULL)
at_response_free(ac->response);
else {
/* Line reader stores intermediate responses in reverse order. */
reverseIntermediates(ac->response);
*pp_outResponse = ac->response;
}
ac->response = NULL;
if(ac->readerClosed > 0) {
err = AT_ERROR_CHANNEL_CLOSED;
goto finally;
}
finally:
clearPendingCommand();
pthread_cond_broadcast(&ac->requestcond);
pthread_mutex_unlock(&ac->requestmutex);
return err;
}
static int at_send_command_full_nolock (const char *command, ATCommandType type,
const char *responsePrefix, const char *smspdu,
long long timeoutMsec, ATResponse **pp_outResponse)
{
int err = 0;
#ifndef USE_NP
struct timespec ts;
#endif /*USE_NP*/
if(sp_response != NULL) {
err = AT_ERROR_COMMAND_PENDING;
goto error;
}
if (!strncmp(command, "ATD", 3))
s_last_cme_error = CME_NO_ERROR;
err = writeline (command);
if (err < 0) {
goto error;
}
s_type = type;
s_responsePrefix = responsePrefix;
s_smsPDU = smspdu;
sp_response = at_response_new();
#ifndef USE_NP
if (timeoutMsec != 0) {
setTimespecRelative(&ts, timeoutMsec);
}
#endif /*USE_NP*/
while (sp_response->finalResponse == NULL && s_readerClosed == 0) {
if (timeoutMsec != 0) {
#ifdef USE_NP
err = pthread_cond_timeout_np(&s_commandcond, &s_commandmutex, timeoutMsec);
#else
err = pthread_cond_timedwait(&s_commandcond, &s_commandmutex, &ts);
#endif /*USE_NP*/
} else {
err = pthread_cond_wait(&s_commandcond, &s_commandmutex);
}
if (err == ETIMEDOUT) {
err = AT_ERROR_TIMEOUT;
goto error;
}
}
if (pp_outResponse == NULL) {
at_response_free(sp_response);
} else {
/* line reader stores intermediate responses in reverse order */
reverseIntermediates(sp_response);
*pp_outResponse = sp_response;
}
sp_response = NULL;
if(s_readerClosed > 0) {
err = AT_ERROR_CHANNEL_CLOSED;
goto error;
}
err = 0;
error:
clearPendingCommand();
/* Have to save the error message right away */
if (pp_outResponse && !(*pp_outResponse)->success && !err && !strncmp(command, "ATD", 3)) {
ATResponse *err_resp;
err = at_send_command_full_nolock("AT+CEER", SINGLELINE, "+CEER:", NULL,
timeoutMsec, &err_resp);
if (!err) {
if (err_resp->p_intermediates != NULL) {
free(s_last_errmsg);
s_last_errmsg = strdup(err_resp->p_intermediates->line);
}
at_response_free(err_resp);
}
}
return err;
}