ofono/drivers/hfpmodem/voicecall.c

1337 lines
32 KiB
C

/*
*
* oFono - Open Source Telephony
*
* Copyright (C) 2008-2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#define _GNU_SOURCE
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <glib.h>
#include <gatchat.h>
#include <gatresult.h>
#include <ofono/log.h>
#include <ofono/modem.h>
#include <ofono/voicecall.h>
#include "common.h"
#include "hfp.h"
#include "hfpmodem.h"
#include "slc.h"
#define POLL_CLCC_INTERVAL 2000
#define POLL_CLCC_DELAY 50
#define EXPECT_RELEASE_DELAY 50
#define CLIP_TIMEOUT 500
#define EXPECT_RING_DELAY 200
static const char *none_prefix[] = { NULL };
static const char *clcc_prefix[] = { "+CLCC:", NULL };
struct voicecall_data {
GAtChat *chat;
GSList *calls;
unsigned int ag_features;
unsigned int ag_mpty_features;
unsigned char cind_pos[HFP_INDICATOR_LAST];
int cind_val[HFP_INDICATOR_LAST];
unsigned int local_release;
unsigned int clcc_source;
unsigned int expect_release_source;
unsigned int clip_source;
};
struct release_id_req {
struct ofono_voicecall *vc;
ofono_voicecall_cb_t cb;
void *data;
int id;
};
struct change_state_req {
struct ofono_voicecall *vc;
ofono_voicecall_cb_t cb;
void *data;
int affected_types;
};
static gboolean poll_clcc(gpointer user_data);
static GSList *find_dialing(GSList *calls)
{
GSList *c;
c = g_slist_find_custom(calls, GINT_TO_POINTER(CALL_STATUS_DIALING),
at_util_call_compare_by_status);
if (c == NULL)
c = g_slist_find_custom(calls,
GINT_TO_POINTER(CALL_STATUS_ALERTING),
at_util_call_compare_by_status);
return c;
}
static void voicecall_notify(gpointer value, gpointer user)
{
struct ofono_call *call = value;
struct ofono_voicecall *vc = user;
ofono_voicecall_notify(vc, call);
}
static struct ofono_call *create_call(struct ofono_voicecall *vc, int type,
int direction, int status,
const char *num, int num_type, int clip)
{
struct voicecall_data *d = ofono_voicecall_get_data(vc);
struct ofono_call *call;
/* Generate a call structure for the waiting call */
call = g_try_new(struct ofono_call, 1);
if (call == NULL)
return NULL;
ofono_call_init(call);
call->id = ofono_voicecall_get_next_callid(vc);
call->type = type;
call->direction = direction;
call->status = status;
if (clip != 2) {
strncpy(call->phone_number.number, num,
OFONO_MAX_PHONE_NUMBER_LENGTH);
call->phone_number.number[OFONO_MAX_PHONE_NUMBER_LENGTH] = '\0';
call->phone_number.type = num_type;
}
d->calls = g_slist_insert_sorted(d->calls, call, at_util_call_compare);
call->clip_validity = clip;
return call;
}
static void release_call(struct ofono_voicecall *vc, struct ofono_call *call)
{
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
enum ofono_disconnect_reason reason;
if (call == NULL)
return;
if (vd->local_release & (1 << call->id))
reason = OFONO_DISCONNECT_REASON_LOCAL_HANGUP;
else
reason = OFONO_DISCONNECT_REASON_REMOTE_HANGUP;
ofono_voicecall_disconnected(vc, call->id, reason, NULL);
vd->local_release &= ~(1 << call->id);
g_free(call);
}
static void release_all_calls(struct ofono_voicecall *vc)
{
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
GSList *l;
struct ofono_call *call;
for (l = vd->calls; l; l = l->next) {
call = l->data;
release_call(vc, call);
}
g_slist_free(vd->calls);
vd->calls = NULL;
}
static void release_with_status(struct ofono_voicecall *vc, int status)
{
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
GSList *p = NULL;
GSList *c = vd->calls;
GSList *t;
struct ofono_call *call;
while (c) {
call = c->data;
if (call->status != status) {
p = c;
c = c->next;
continue;
}
release_call(vc, call);
if (p)
p->next = c->next;
else
vd->calls = c->next;
t = c;
c = c->next;
g_slist_free_1(t);
}
if (vd->expect_release_source) {
g_source_remove(vd->expect_release_source);
vd->expect_release_source = 0;
}
}
static void clcc_poll_cb(gboolean ok, GAtResult *result, gpointer user_data)
{
struct ofono_voicecall *vc = user_data;
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
GSList *calls;
GSList *n, *o;
struct ofono_call *nc, *oc;
unsigned int num_active = 0;
unsigned int num_held = 0;
GSList *notify_calls = NULL;
unsigned int mpty_ids;
if (!ok)
return;
calls = at_util_parse_clcc(result, &mpty_ids);
n = calls;
o = vd->calls;
while (n || o) {
nc = n ? n->data : NULL;
oc = o ? o->data : NULL;
if (nc && (nc->status == CALL_STATUS_ACTIVE))
num_active++;
if (nc && (nc->status == CALL_STATUS_HELD))
num_held++;
if (oc && (nc == NULL || (nc->id > oc->id))) {
enum ofono_disconnect_reason reason;
if (vd->local_release & (1 << oc->id))
reason = OFONO_DISCONNECT_REASON_LOCAL_HANGUP;
else
reason = OFONO_DISCONNECT_REASON_REMOTE_HANGUP;
if (!oc->type)
ofono_voicecall_disconnected(vc, oc->id,
reason, NULL);
vd->local_release &= ~(1 << oc->id);
o = o->next;
} else if (nc && (oc == NULL || (nc->id < oc->id))) {
/* new call, signal it */
if (nc->type == 0)
notify_calls = g_slist_append(notify_calls, nc);
n = n->next;
} else {
/* Always use the clip_validity from old call
* the only place this is truly told to us is
* in the CLIP notify, the rest are fudged
* anyway. Useful when RING, CLIP is used,
* and we're forced to use CLCC and clip_validity
* is 1
*/
nc->clip_validity = oc->clip_validity;
if (memcmp(nc, oc, sizeof(struct ofono_call)) &&
!nc->type)
notify_calls = g_slist_prepend(notify_calls,
nc);
n = n->next;
o = o->next;
}
}
/*
* Disconnections were already reported, so process the rest of the
* notifications. Note that the new calls are placed at the end of the
* list, after other state changes
*/
g_slist_foreach(notify_calls, voicecall_notify, vc);
g_slist_free(notify_calls);
ofono_voicecall_mpty_hint(vc, mpty_ids);
g_slist_free_full(vd->calls, g_free);
vd->calls = calls;
/* If either active/held call is more than 1, we are in mpty calls.
* we won't get indicator update if any of them is released by CHLD=1x.
* So we have to poll it.
*/
if ((num_active > 1 || num_held > 1) && !vd->clcc_source)
vd->clcc_source = g_timeout_add(POLL_CLCC_INTERVAL, poll_clcc,
vc);
}
static gboolean poll_clcc(gpointer user_data)
{
struct ofono_voicecall *vc = user_data;
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
g_at_chat_send(vd->chat, "AT+CLCC", clcc_prefix,
clcc_poll_cb, vc, NULL);
vd->clcc_source = 0;
return FALSE;
}
static void generic_cb(gboolean ok, GAtResult *result, gpointer user_data)
{
struct change_state_req *req = user_data;
struct voicecall_data *vd = ofono_voicecall_get_data(req->vc);
struct ofono_error error;
decode_at_error(&error, g_at_result_final_response(result));
if (ok && req->affected_types) {
GSList *l;
struct ofono_call *call;
for (l = vd->calls; l; l = l->next) {
call = l->data;
if (req->affected_types & (1 << call->status))
vd->local_release |= (1 << call->id);
}
}
if (!ok && vd->calls)
g_at_chat_send(vd->chat, "AT+CLCC", clcc_prefix,
clcc_poll_cb, req->vc, NULL);
req->cb(&error, req->data);
}
static void atd_cb(gboolean ok, GAtResult *result, gpointer user_data)
{
struct cb_data *cbd = user_data;
struct ofono_voicecall *vc = cbd->user;
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
ofono_voicecall_cb_t cb = cbd->cb;
int type = 128;
int validity = 2;
struct ofono_error error;
struct ofono_call *call;
GSList *l;
decode_at_error(&error, g_at_result_final_response(result));
if (!ok)
goto out;
/* On a success, make sure to put all active calls on hold */
for (l = vd->calls; l; l = l->next) {
call = l->data;
if (call->status != CALL_STATUS_ACTIVE)
continue;
call->status = CALL_STATUS_HELD;
ofono_voicecall_notify(vc, call);
}
call = create_call(vc, 0, 0, CALL_STATUS_DIALING, NULL, type, validity);
if (call == NULL) {
ofono_error("Unable to allocate call, "
"call tracking will fail!");
return;
}
out:
cb(&error, cbd->data);
}
static void hfp_dial(struct ofono_voicecall *vc,
const struct ofono_phone_number *ph,
enum ofono_clir_option clir, ofono_voicecall_cb_t cb,
void *data)
{
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
struct cb_data *cbd = cb_data_new(cb, data);
char buf[256];
cbd->user = vc;
if (ph->type == 145)
snprintf(buf, sizeof(buf), "ATD+%s", ph->number);
else
snprintf(buf, sizeof(buf), "ATD%s", ph->number);
strcat(buf, ";");
if (g_at_chat_send(vd->chat, buf, none_prefix,
atd_cb, cbd, g_free) > 0)
return;
g_free(cbd);
CALLBACK_WITH_FAILURE(cb, data);
}
static void hfp_dial_last(struct ofono_voicecall *vc, ofono_voicecall_cb_t cb,
void *data)
{
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
struct cb_data *cbd = cb_data_new(cb, data);
cbd->user = vc;
if (g_at_chat_send(vd->chat, "AT+BLDN", none_prefix,
atd_cb, cbd, g_free) > 0)
return;
g_free(cbd);
CALLBACK_WITH_FAILURE(cb, data);
}
static void hfp_dial_memory(struct ofono_voicecall *vc,
unsigned int memory_location,
ofono_voicecall_cb_t cb, void *data)
{
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
struct cb_data *cbd = cb_data_new(cb, data);
char buf[256];
cbd->user = vc;
DBG("Calling memory location %d\n", memory_location);
snprintf(buf, sizeof(buf), "ATD>%d;", memory_location);
if (g_at_chat_send(vd->chat, buf, none_prefix,
atd_cb, cbd, g_free) > 0)
return;
g_free(cbd);
DBG("at_chat_failed");
CALLBACK_WITH_FAILURE(cb, data);
}
static void hfp_template(const char *cmd, struct ofono_voicecall *vc,
GAtResultFunc result_cb, unsigned int affected_types,
ofono_voicecall_cb_t cb, void *data)
{
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
struct change_state_req *req = g_try_new0(struct change_state_req, 1);
if (req == NULL)
goto error;
req->vc = vc;
req->cb = cb;
req->data = data;
req->affected_types = affected_types;
if (g_at_chat_send(vd->chat, cmd, none_prefix,
result_cb, req, g_free) > 0)
return;
error:
g_free(req);
CALLBACK_WITH_FAILURE(cb, data);
}
static void hfp_answer(struct ofono_voicecall *vc,
ofono_voicecall_cb_t cb, void *data)
{
hfp_template("ATA", vc, generic_cb, 0, cb, data);
}
static void hfp_hangup(struct ofono_voicecall *vc,
ofono_voicecall_cb_t cb, void *data)
{
unsigned int affected = (1 << CALL_STATUS_INCOMING) |
(1 << CALL_STATUS_DIALING) |
(1 << CALL_STATUS_ALERTING) |
(1 << CALL_STATUS_ACTIVE);
/* Hangup current active call */
hfp_template("AT+CHUP", vc, generic_cb, affected, cb, data);
}
static void hfp_hold_all_active(struct ofono_voicecall *vc,
ofono_voicecall_cb_t cb, void *data)
{
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
if (vd->ag_mpty_features & HFP_AG_CHLD_2) {
hfp_template("AT+CHLD=2", vc, generic_cb, 0, cb, data);
return;
}
CALLBACK_WITH_FAILURE(cb, data);
}
static void hfp_release_all_held(struct ofono_voicecall *vc,
ofono_voicecall_cb_t cb, void *data)
{
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
unsigned int held_status = 1 << CALL_STATUS_HELD;
if (vd->ag_mpty_features & HFP_AG_CHLD_0) {
hfp_template("AT+CHLD=0", vc, generic_cb, held_status,
cb, data);
return;
}
CALLBACK_WITH_FAILURE(cb, data);
}
static void hfp_set_udub(struct ofono_voicecall *vc,
ofono_voicecall_cb_t cb, void *data)
{
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
unsigned int incoming_or_waiting = 1 << CALL_STATUS_WAITING;
if (vd->ag_mpty_features & HFP_AG_CHLD_0) {
hfp_template("AT+CHLD=0", vc, generic_cb, incoming_or_waiting,
cb, data);
return;
}
CALLBACK_WITH_FAILURE(cb, data);
}
static gboolean expect_release(gpointer user_data)
{
struct ofono_voicecall *vc = user_data;
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
g_at_chat_send(vd->chat, "AT+CLCC", clcc_prefix,
clcc_poll_cb, vc, NULL);
vd->expect_release_source = 0;
return FALSE;
}
static gboolean expect_ring(gpointer user_data)
{
struct ofono_voicecall *vc = user_data;
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
g_at_chat_send(vd->chat, "AT+CLCC", clcc_prefix,
clcc_poll_cb, vc, NULL);
vd->clip_source = 0;
return FALSE;
}
static void release_all_active_cb(gboolean ok, GAtResult *result,
gpointer user_data)
{
struct change_state_req *req = user_data;
struct voicecall_data *vd = ofono_voicecall_get_data(req->vc);
if (!ok)
goto out;
if (vd->expect_release_source)
g_source_remove(vd->expect_release_source);
/*
* Some phones, like Nokia 500, do not send CIEV after accepting
* the CHLD=1 command, even though the spec states that they should.
* So simply poll to force the status update if the AG is misbehaving.
*/
vd->expect_release_source = g_timeout_add(EXPECT_RELEASE_DELAY,
expect_release,
req->vc);
out:
generic_cb(ok, result, user_data);
}
static void hfp_release_all_active(struct ofono_voicecall *vc,
ofono_voicecall_cb_t cb, void *data)
{
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
if (vd->ag_mpty_features & HFP_AG_CHLD_1) {
hfp_template("AT+CHLD=1", vc, release_all_active_cb, 0x1, cb,
data);
return;
}
CALLBACK_WITH_FAILURE(cb, data);
}
static void release_id_cb(gboolean ok, GAtResult *result,
gpointer user_data)
{
struct release_id_req *req = user_data;
struct voicecall_data *vd = ofono_voicecall_get_data(req->vc);
struct ofono_error error;
decode_at_error(&error, g_at_result_final_response(result));
if (ok)
vd->local_release |= (1 << req->id);
req->cb(&error, req->data);
}
static void hfp_release_specific(struct ofono_voicecall *vc, int id,
ofono_voicecall_cb_t cb, void *data)
{
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
struct release_id_req *req = NULL;
char buf[32];
if (!(vd->ag_mpty_features & HFP_AG_CHLD_1x))
goto error;
req = g_try_new0(struct release_id_req, 1);
if (req == NULL)
goto error;
req->vc = vc;
req->cb = cb;
req->data = data;
req->id = id;
snprintf(buf, sizeof(buf), "AT+CHLD=1%d", id);
if (g_at_chat_send(vd->chat, buf, none_prefix,
release_id_cb, req, g_free) > 0)
return;
error:
g_free(req);
CALLBACK_WITH_FAILURE(cb, data);
}
static void hfp_private_chat(struct ofono_voicecall *vc, int id,
ofono_voicecall_cb_t cb, void *data)
{
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
char buf[32];
if (vd->ag_mpty_features & HFP_AG_CHLD_2x) {
snprintf(buf, sizeof(buf), "AT+CHLD=2%d", id);
hfp_template(buf, vc, generic_cb, 0, cb, data);
return;
}
CALLBACK_WITH_FAILURE(cb, data);
}
static void hfp_create_multiparty(struct ofono_voicecall *vc,
ofono_voicecall_cb_t cb, void *data)
{
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
if (vd->ag_mpty_features & HFP_AG_CHLD_3) {
hfp_template("AT+CHLD=3", vc, generic_cb, 0, cb, data);
return;
}
CALLBACK_WITH_FAILURE(cb, data);
}
static void hfp_transfer(struct ofono_voicecall *vc,
ofono_voicecall_cb_t cb, void *data)
{
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
/* Transfer can puts held & active calls together and disconnects
* from both. However, some networks support transferring of
* dialing/ringing calls as well.
*/
unsigned int transfer = 0x1 | 0x2 | 0x4 | 0x8;
if (vd->ag_mpty_features & HFP_AG_CHLD_4) {
hfp_template("AT+CHLD=4", vc, generic_cb, transfer, cb, data);
return;
}
CALLBACK_WITH_FAILURE(cb, data);
}
static void hfp_send_dtmf(struct ofono_voicecall *vc, const char *dtmf,
ofono_voicecall_cb_t cb, void *data)
{
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
struct change_state_req *req = g_try_new0(struct change_state_req, 1);
int len = strlen(dtmf);
char *buf;
int s;
int i;
if (req == NULL)
goto error;
req->vc = vc;
req->cb = cb;
req->data = data;
req->affected_types = 0;
/* strlen("AT") + (n-1) * strlen("+VTS=T;") + strlen(+VTS=T) + null */
buf = g_try_new(char, len * 7 + 2);
if (buf == NULL)
goto error;
s = sprintf(buf, "AT+VTS=%c", dtmf[0]);
for (i = 1; i < len; i++)
s += sprintf(buf + s, ";+VTS=%c", dtmf[i]);
s = g_at_chat_send(vd->chat, buf, none_prefix,
generic_cb, req, g_free);
g_free(buf);
if (s > 0)
return;
error:
g_free(req);
CALLBACK_WITH_FAILURE(cb, data);
}
static void no_carrier_notify(GAtResult *result, gpointer user_data)
{
DBG("");
}
static void ccwa_notify(GAtResult *result, gpointer user_data)
{
struct ofono_voicecall *vc = user_data;
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
GAtResultIter iter;
const char *num;
int num_type, validity;
struct ofono_call *call;
/* Waiting call notification makes no sense, when there are
* no calls at all. This can happen when a phone already has
* waiting and active calls and is being connected over HFP
* but it first sends +CCWA before we manage to synchronize
* calls with AT+CLCC.
*/
if (!vd->calls)
return;
/* CCWA can repeat, ignore if we already have an waiting call */
if (g_slist_find_custom(vd->calls,
GINT_TO_POINTER(CALL_STATUS_WAITING),
at_util_call_compare_by_status))
return;
/* some phones may send extra CCWA after active call is ended
* this would trigger creation of second call in state 'WAITING'
* as our previous WAITING call has been promoted to INCOMING
*/
if (g_slist_find_custom(vd->calls,
GINT_TO_POINTER(CALL_STATUS_INCOMING),
at_util_call_compare_by_status))
return;
g_at_result_iter_init(&iter, result);
if (!g_at_result_iter_next(&iter, "+CCWA:"))
return;
if (!g_at_result_iter_next_string(&iter, &num))
return;
if (!g_at_result_iter_next_number(&iter, &num_type))
return;
if (strlen(num) > 0)
validity = 0;
else
validity = 2;
DBG("ccwa_notify: %s %d %d", num, num_type, validity);
call = create_call(vc, 0, 1, CALL_STATUS_WAITING, num, num_type,
validity);
if (call == NULL) {
ofono_error("malloc call struct failed. "
"Call management is fubar");
return;
}
ofono_voicecall_notify(vc, call);
}
static gboolean clip_timeout(gpointer user_data)
{
struct ofono_voicecall *vc = user_data;
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
GSList *l;
struct ofono_call *call;
l = g_slist_find_custom(vd->calls,
GINT_TO_POINTER(CALL_STATUS_INCOMING),
at_util_call_compare_by_status);
if (l == NULL)
return FALSE;
call = l->data;
ofono_voicecall_notify(vc, call);
vd->clip_source = 0;
return FALSE;
}
static void ring_notify(GAtResult *result, gpointer user_data)
{
struct ofono_voicecall *vc = user_data;
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
struct ofono_call *call;
GSList *waiting;
if (vd->clip_source) {
g_source_remove(vd->clip_source);
vd->clip_source = 0;
}
/* RING can repeat, ignore if we already have an incoming call */
if (g_slist_find_custom(vd->calls,
GINT_TO_POINTER(CALL_STATUS_INCOMING),
at_util_call_compare_by_status))
return;
waiting = g_slist_find_custom(vd->calls,
GINT_TO_POINTER(CALL_STATUS_WAITING),
at_util_call_compare_by_status);
/* If we started receiving RINGS but have a waiting call, most
* likely all other calls were dropped and we just didn't get
* notified yet, drop all other calls and update the status to
* incoming
*/
if (waiting) {
DBG("Triggering waiting -> incoming cleanup code");
vd->calls = g_slist_remove_link(vd->calls, waiting);
release_all_calls(vc);
vd->calls = waiting;
call = waiting->data;
call->status = CALL_STATUS_INCOMING;
ofono_voicecall_notify(vc, call);
return;
}
/* Generate an incoming call of voice type */
call = create_call(vc, 0, 1, CALL_STATUS_INCOMING, NULL, 128, 2);
if (call == NULL)
ofono_error("Couldn't create call, call management is fubar!");
/* We don't know the number must wait for CLIP to arrive before
* announcing the call. If timeout, we notify the call as it is.
*/
vd->clip_source = g_timeout_add(CLIP_TIMEOUT, clip_timeout, vc);
}
static void clip_notify(GAtResult *result, gpointer user_data)
{
struct ofono_voicecall *vc = user_data;
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
GAtResultIter iter;
const char *num;
int type, validity;
GSList *l;
struct ofono_call *call;
l = g_slist_find_custom(vd->calls,
GINT_TO_POINTER(CALL_STATUS_INCOMING),
at_util_call_compare_by_status);
if (l == NULL) {
ofono_error("CLIP for unknown call");
return;
}
g_at_result_iter_init(&iter, result);
if (!g_at_result_iter_next(&iter, "+CLIP:"))
return;
if (!g_at_result_iter_next_string(&iter, &num))
return;
if (!g_at_result_iter_next_number(&iter, &type))
return;
if (strlen(num) > 0)
validity = 0;
else
validity = 2;
/* Skip subaddr, satype, alpha and validity */
g_at_result_iter_skip_next(&iter);
g_at_result_iter_skip_next(&iter);
g_at_result_iter_skip_next(&iter);
g_at_result_iter_skip_next(&iter);
DBG("clip_notify: %s %d %d", num, type, validity);
call = l->data;
strncpy(call->phone_number.number, num,
OFONO_MAX_PHONE_NUMBER_LENGTH);
call->phone_number.number[OFONO_MAX_PHONE_NUMBER_LENGTH] = '\0';
call->phone_number.type = type;
call->clip_validity = validity;
ofono_voicecall_notify(vc, call);
if (vd->clip_source) {
g_source_remove(vd->clip_source);
vd->clip_source = 0;
}
}
static void ciev_call_notify(struct ofono_voicecall *vc,
unsigned int value)
{
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
struct ofono_call *call;
switch (value) {
case 0:
/* If call goes to 0, then we have no held or active calls
* in the system. The waiting calls are promoted to incoming
* calls, dialing calls are kept. This also handles the
* situation when dialing and waiting calls exist
*/
release_with_status(vc, CALL_STATUS_HELD);
release_with_status(vc, CALL_STATUS_ACTIVE);
/* Promote waiting to incoming if it is the last call */
if (vd->calls && vd->calls->next == NULL) {
call = vd->calls->data;
if (call->status == CALL_STATUS_WAITING) {
call->status = CALL_STATUS_INCOMING;
ofono_voicecall_notify(vc, call);
}
}
break;
case 1:
{
GSList *l;
/* In this case either dialing/alerting or the incoming call
* is promoted to active
*/
for (l = vd->calls; l; l = l->next) {
call = l->data;
if (call->status == CALL_STATUS_DIALING ||
call->status == CALL_STATUS_ALERTING ||
call->status == CALL_STATUS_INCOMING) {
call->status = CALL_STATUS_ACTIVE;
ofono_voicecall_notify(vc, call);
}
}
break;
}
default:
break;
}
vd->cind_val[HFP_INDICATOR_CALL] = value;
}
static void ciev_callsetup_notify(struct ofono_voicecall *vc,
unsigned int value)
{
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
unsigned int ciev_call = vd->cind_val[HFP_INDICATOR_CALL];
unsigned int ciev_callheld = vd->cind_val[HFP_INDICATOR_CALLHELD];
GSList *dialing;
GSList *waiting;
dialing = find_dialing(vd->calls);
waiting = g_slist_find_custom(vd->calls,
GINT_TO_POINTER(CALL_STATUS_WAITING),
at_util_call_compare_by_status);
/* This is a truly bizarre case not covered at all by the specification
* (yes, they are complete idiots). Here we assume the other side is
* semi sane and will send callsetup updates in case the dialing call
* connects or the call waiting drops. In which case we must poll
*/
if (waiting && dialing) {
g_at_chat_send(vd->chat, "AT+CLCC", clcc_prefix,
clcc_poll_cb, vc, NULL);
goto out;
}
switch (value) {
case 0:
/* call=0 and callsetup=1: reject an incoming call
* call=0 and callsetup=2,3: interrupt an outgoing call
*/
if (ciev_call == 0) {
release_all_calls(vc);
goto out;
}
/* If call=1 and no call is waiting or dialing, the call is
* active and we moved it to active state when call=1 arrived
*/
if (waiting == NULL && dialing == NULL)
goto out;
/*
* If call=1, in the waiting case we have to poll, since we
* have no idea whether a waiting call gave up or we accepted
* using release+accept or hold+accept
*
* If call=1, in the dialing + held case we have to poll as
* well, we have no idea whether the call connected, or released
*/
if (waiting == NULL && ciev_callheld == 0) {
struct ofono_call *call = dialing->data;
/* We assume that the implementation follows closely
* the sequence of events in Figure 4.21. That is
* call=1 arrives first, then callsetup=0
*/
call->status = CALL_STATUS_ACTIVE;
ofono_voicecall_notify(vc, call);
} else {
g_at_chat_send(vd->chat, "AT+CLCC", clcc_prefix,
clcc_poll_cb, vc, NULL);
}
break;
case 1:
/*
* Handled in RING/CCWA most of the time, however sometimes
* the call is answered before the RING unsolicited
* notification has a chance to be generated on the device.
* In this case, we use a failsafe CLCC poll in expect_ring
* callback.
* */
vd->clip_source = g_timeout_add(EXPECT_RING_DELAY,
expect_ring, vc);
break;
case 2:
/* two cases of outgoing call: dial from HF or AG.
* from HF: query and sync the phone number.
* from AG: query and create call.
*/
g_at_chat_send(vd->chat, "AT+CLCC", clcc_prefix,
clcc_poll_cb, vc, NULL);
break;
case 3:
{
GSList *o = g_slist_find_custom(vd->calls,
GINT_TO_POINTER(CALL_STATUS_DIALING),
at_util_call_compare_by_status);
if (o) {
struct ofono_call *call = o->data;
call->status = CALL_STATUS_ALERTING;
ofono_voicecall_notify(vc, call);
}
break;
}
default:
break;
}
out:
vd->cind_val[HFP_INDICATOR_CALLSETUP] = value;
}
static void ciev_callheld_notify(struct ofono_voicecall *vc,
unsigned int value)
{
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
GSList *l;
struct ofono_call *call;
unsigned int callheld = vd->cind_val[HFP_INDICATOR_CALLHELD];
switch (value) {
case 0:
/* We have to poll here, we have no idea whether the call was
* dropped using CHLD=0 or simply retrieved, or the two calls
* were merged
*/
g_at_chat_send(vd->chat, "AT+CLCC", clcc_prefix,
clcc_poll_cb, vc, NULL);
break;
case 1:
if (vd->clcc_source) {
g_source_remove(vd->clcc_source);
vd->clcc_source = 0;
}
/* We have to poll here, we have no idea whether the call was
* accepted by CHLD=1 or swapped by CHLD=2 or one call was
* chosed for private chat by CHLD=2x
*/
g_at_chat_send(vd->chat, "AT+CLCC", clcc_prefix,
clcc_poll_cb, vc, NULL);
break;
case 2:
if (callheld == 0) {
for (l = vd->calls; l; l = l->next) {
call = l->data;
if (call->status != CALL_STATUS_ACTIVE)
continue;
call->status = CALL_STATUS_HELD;
ofono_voicecall_notify(vc, call);
}
} else if (callheld == 1) {
if (vd->clcc_source)
g_source_remove(vd->clcc_source);
/* We have to schedule a poll here, we have no idea
* whether active call was dropped by remote or if this
* is an intermediate state during call swap
*/
vd->clcc_source = g_timeout_add(POLL_CLCC_DELAY,
poll_clcc, vc);
} else {
if (vd->clcc_source)
g_source_remove(vd->clcc_source);
/*
* We got a notification that there is a held call
* and no active call but we already are in such state.
* Let's schedule a poll to see what happened.
*/
vd->clcc_source = g_timeout_add(POLL_CLCC_DELAY,
poll_clcc, vc);
}
}
vd->cind_val[HFP_INDICATOR_CALLHELD] = value;
}
static void ciev_notify(GAtResult *result, gpointer user_data)
{
struct ofono_voicecall *vc = user_data;
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
int index;
int value;
GAtResultIter iter;
g_at_result_iter_init(&iter, result);
if (!g_at_result_iter_next(&iter, "+CIEV:"))
return;
if (!g_at_result_iter_next_number(&iter, &index))
return;
if (!g_at_result_iter_next_number(&iter, &value))
return;
if (index == vd->cind_pos[HFP_INDICATOR_CALL])
ciev_call_notify(vc, value);
else if (index == vd->cind_pos[HFP_INDICATOR_CALLSETUP])
ciev_callsetup_notify(vc, value);
else if (index == vd->cind_pos[HFP_INDICATOR_CALLHELD])
ciev_callheld_notify(vc, value);
}
static void hfp_clcc_cb(gboolean ok, GAtResult *result, gpointer user_data)
{
struct ofono_voicecall *vc = user_data;
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
unsigned int mpty_ids;
GSList *n;
struct ofono_call *nc;
unsigned int num_active = 0;
unsigned int num_held = 0;
if (!ok)
return;
vd->calls = at_util_parse_clcc(result, &mpty_ids);
g_slist_foreach(vd->calls, voicecall_notify, vc);
ofono_voicecall_mpty_hint(vc, mpty_ids);
n = vd->calls;
while (n) {
nc = n->data;
if (nc->status == CALL_STATUS_ACTIVE)
num_active++;
else if (nc->status == CALL_STATUS_HELD)
num_held++;
n = n->next;
}
if ((num_active > 1 || num_held > 1) && !vd->clcc_source)
vd->clcc_source = g_timeout_add(POLL_CLCC_INTERVAL, poll_clcc, vc);
}
static void hfp_voicecall_initialized(gboolean ok, GAtResult *result,
gpointer user_data)
{
struct ofono_voicecall *vc = user_data;
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
DBG("hfp_voicecall_init: registering to notifications");
g_at_chat_register(vd->chat, "RING", ring_notify, FALSE, vc, NULL);
g_at_chat_register(vd->chat, "+CLIP:", clip_notify, FALSE, vc, NULL);
g_at_chat_register(vd->chat, "+CIEV:", ciev_notify, FALSE, vc, NULL);
g_at_chat_register(vd->chat, "+CCWA:", ccwa_notify, FALSE, vc, NULL);
g_at_chat_register(vd->chat, "NO CARRIER",
no_carrier_notify, FALSE, vc, NULL);
ofono_voicecall_register(vc);
/* Populate the call list */
g_at_chat_send(vd->chat, "AT+CLCC", clcc_prefix, hfp_clcc_cb, vc, NULL);
}
static int hfp_voicecall_probe(struct ofono_voicecall *vc, unsigned int vendor,
gpointer user_data)
{
struct hfp_slc_info *info = user_data;
struct voicecall_data *vd;
vd = g_new0(struct voicecall_data, 1);
vd->chat = g_at_chat_clone(info->chat);
vd->ag_features = info->ag_features;
vd->ag_mpty_features = info->ag_mpty_features;
memcpy(vd->cind_pos, info->cind_pos, HFP_INDICATOR_LAST);
memcpy(vd->cind_val, info->cind_val, HFP_INDICATOR_LAST);
ofono_voicecall_set_data(vc, vd);
g_at_chat_send(vd->chat, "AT+CLIP=1", none_prefix, NULL, NULL, NULL);
g_at_chat_send(vd->chat, "AT+CCWA=1", none_prefix,
hfp_voicecall_initialized, vc, NULL);
return 0;
}
static void hfp_voicecall_remove(struct ofono_voicecall *vc)
{
struct voicecall_data *vd = ofono_voicecall_get_data(vc);
if (vd->clcc_source)
g_source_remove(vd->clcc_source);
if (vd->clip_source)
g_source_remove(vd->clip_source);
if (vd->expect_release_source)
g_source_remove(vd->expect_release_source);
g_slist_free_full(vd->calls, g_free);
ofono_voicecall_set_data(vc, NULL);
g_at_chat_unref(vd->chat);
g_free(vd);
}
static const struct ofono_voicecall_driver driver = {
.name = "hfpmodem",
.probe = hfp_voicecall_probe,
.remove = hfp_voicecall_remove,
.dial = hfp_dial,
.dial_last = hfp_dial_last,
.dial_memory = hfp_dial_memory,
.answer = hfp_answer,
.hangup_active = hfp_hangup,
.hold_all_active = hfp_hold_all_active,
.release_all_held = hfp_release_all_held,
.set_udub = hfp_set_udub,
.release_all_active = hfp_release_all_active,
.release_specific = hfp_release_specific,
.private_chat = hfp_private_chat,
.create_multiparty = hfp_create_multiparty,
.transfer = hfp_transfer,
.deflect = NULL,
.swap_without_accept = NULL,
.send_tones = hfp_send_dtmf
};
void hfp_voicecall_init(void)
{
ofono_voicecall_driver_register(&driver);
}
void hfp_voicecall_exit(void)
{
ofono_voicecall_driver_unregister(&driver);
}