Add 'gsm signal' command, to set rssi and ber
Change-Id: I24d4738f6e5135437af25d22e2fa68617f5632fa
diff --git a/telephony/android_modem.c b/telephony/android_modem.c
index 009b5af..dd9f78d 100644
--- a/telephony/android_modem.c
+++ b/telephony/android_modem.c
@@ -235,6 +235,9 @@
int cell_id;
int base_port;
+ int rssi;
+ int ber;
+
/* SMS */
int wait_sms;
@@ -465,6 +468,9 @@
modem->radio_state = A_RADIO_STATE_OFF;
modem->wait_sms = 0;
+ modem->rssi= 7; // Two signal strength bars
+ modem->ber = 99; // Means 'unknown'
+
modem->oper_name_index = amodem_nvram_get_int(modem, NV_OPER_NAME_INDEX, 2);
modem->oper_selection_mode = amodem_nvram_get_int(modem, NV_SELECTION_MODE, A_SELECTION_AUTOMATIC);
modem->oper_index = amodem_nvram_get_int(modem, NV_OPER_INDEX, 0);
@@ -877,6 +883,12 @@
return NULL;
}
+void
+amodem_set_signal_strength( AModem modem, int rssi, int ber )
+{
+ modem->rssi = rssi;
+ modem->ber = ber;
+}
static void
acall_set_state( AVoiceCall call, ACallState state )
@@ -2135,7 +2147,6 @@
static const char*
handleSignalStrength( const char* cmd, AModem modem )
{
- /* XXX: TODO: implement variable signal strength and error rates */
amodem_begin_line( modem );
#if CONFIG_ANDROID_SNAPSHOTS
/* Sneak time updates into the SignalStrength request, because it's periodic.
@@ -2149,7 +2160,12 @@
#endif
// rssi = 0 (<-113dBm) 1 (<-111) 2-30 (<-109--53) 31 (>=-51) 99 (?!)
// ber (bit error rate) - always 99 (unknown), apparently.
- amodem_add_line( modem, "+CSQ: %i,99\r\n", 27 );
+ // TODO: return 99 if modem->radio_state==A_RADIO_STATE_OFF, once radio_state is in snapshot.
+ int rssi = modem->rssi;
+ int ber = modem->ber;
+ rssi = (0 > rssi && rssi > 31) ? 99 : rssi ;
+ ber = (0 > ber && ber > 7 ) ? 99 : ber;
+ amodem_add_line( modem, "+CSQ: %i,%i\r\n", rssi, ber );
return amodem_end_line( modem );
}