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ofono
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atmodem: Get strength and tech the quectel way on EC21 

I had some trouble getting network strengh and access technology the
standard way on Quectel EC21. It does work - but only kind of. I did not
get URCs when I am sure I should. This way through CIEV, CIND and CMER
is also not documented in Quectel documentation, so I suspect this to be
unsupported.
This is now changed to the "quectelish" way of gettings those values and
this does work more fine-grained and reliable on the Quectel EC21.
This commit is contained in:
Lars Poeschel 2020-08-11 13:42:16 +02:00 committed by Denis Kenzior
parent 3401d9e29c
commit a01613ad13
2 changed files with 72 additions and 1 deletions
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71
drivers/atmodem/network-registration.c
View File

@ -957,6 +957,66 @@ static void tlts_notify(GAtResult *result, gpointer user_data)
ofono_netreg_time_notify(netreg, &nd->time);
}
static void quectel_qind_notify(GAtResult *result, gpointer user_data)
{
struct ofono_netreg *netreg = user_data;
struct at_netreg_data *nd = ofono_netreg_get_data(netreg);
int rssi, ber, strength;
const char *str;
GAtResultIter iter;
g_at_result_iter_init(&iter, result);
if (!g_at_result_iter_next(&iter, "+QIND:"))
return;
if (!g_at_result_iter_next_string(&iter, &str))
return;
if (g_str_equal("csq", str)) {
if (!g_at_result_iter_next_number(&iter, &rssi))
return;
if (!g_at_result_iter_next_number(&iter, &ber))
return;
DBG("rssi %d ber %d", rssi, ber);
if ((rssi == 99) || (rssi == 199))
strength = -1;
else if (rssi > 99) {
rssi -= 100;
strength = (rssi * 100) / 91;
} else
strength = (rssi * 100) / 31;
ofono_netreg_strength_notify(netreg, strength);
return;
}
if (g_str_equal("act", str)) {
nd->tech = -1;
if (!g_at_result_iter_next_string(&iter, &str))
return;
DBG("technology %s", str);
if (g_str_equal("GSM", str))
nd->tech = ACCESS_TECHNOLOGY_GSM;
else if (g_str_equal("EGPRS", str))
nd->tech = ACCESS_TECHNOLOGY_GSM_EGPRS;
else if (g_str_equal("WCDMA", str))
nd->tech = ACCESS_TECHNOLOGY_UTRAN;
else if (g_str_equal("HSDPA", str))
nd->tech = ACCESS_TECHNOLOGY_UTRAN_HSDPA;
else if (g_str_equal("HSUPA", str))
nd->tech = ACCESS_TECHNOLOGY_UTRAN_HSUPA;
else if (g_str_equal("HSDPA&HSUPA", str))
nd->tech = ACCESS_TECHNOLOGY_UTRAN_HSDPA_HSUPA;
else if (g_str_equal("LTE", str))
nd->tech = ACCESS_TECHNOLOGY_EUTRAN;
}
}
static gboolean notify_time(gpointer user_data)
{
struct ofono_netreg *netreg = user_data;
@ -2047,6 +2107,17 @@ static void at_creg_set_cb(gboolean ok, GAtResult *result, gpointer user_data)
case OFONO_VENDOR_SAMSUNG:
/* Signal strength reporting via CIND is not supported */
break;
case OFONO_VENDOR_QUECTEL_EC2X:
g_at_chat_register(nd->chat, "+QIND:",
quectel_qind_notify, FALSE, netreg, NULL);
/* Register for specific signal strength reports */
g_at_chat_send(nd->chat, "AT+QINDCFG=\"csq\",1", none_prefix,
NULL, NULL, NULL);
/* Register for network technology updates */
g_at_chat_send(nd->chat, "AT+QINDCFG=\"act\",1", none_prefix,
NULL, NULL, NULL);
break;
default:
g_at_chat_send(nd->chat, "AT+CIND=?", cind_prefix,
cind_support_cb, netreg, NULL);

2
plugins/quectel.c
View File

@ -1286,7 +1286,7 @@ static void quectel_post_online(struct ofono_modem *modem)
DBG("%p", modem);
ofono_netreg_create(modem, 0, "atmodem", data->aux);
ofono_netreg_create(modem, data->vendor, "atmodem", data->aux);
}
static struct ofono_modem_driver quectel_driver = {