Update signal strength indicator thresholds

These are thresholds for RSSI so nothing is expected to be
greater than 0.
This will allow to have a better granularity (even if with some
modem, we are limited in the number of thresholds configured)

These new thresholds will give the following signal quality range:
  - 11% for -110 dBm
  - 30% for  -94 dBm
  - 50% for  -82 dBm
  - 70% for  -69 dBm
  - 90% for  -57 dBm

We are expecting to receive indication sreport every time the
signal strength crosses one of the configured thresholds.

Signed-off-by: Frederic Martinsons <frederic.martinsons@sigfox.com>

1 files changed, 9 insertions, 2 deletions

diff --git a/src/mm-broadband-modem-qmi.c b/src/mm-broadband-modem-qmi.c
index a74f035a..b99fea15 100644
--- a/src/mm-broadband-modem-qmi.c
+++ b/src/mm-broadband-modem-qmi.c
@@ -5063,8 +5063,15 @@ common_enable_disable_unsolicited_events_signal_strength (GTask *task)
     g_autoptr(GArray)                            thresholds = NULL;
 
     /* The device doesn't really like to have many threshold values, so don't
-     * grow this array without checking first */
-    static const gint8 thresholds_data[] = { -80, -40, 0, 40, 80 };
+     * grow this array without checking first
+     * The values are chosen towards their results through STRENGTH_TO_QUALITY
+     *   -106 dBm gives 11%
+     *    -94 dBm gives 30%
+     *    -82 dBm gives 50%
+     *    -69 dBm gives 70%
+     *    -57 dBm gives 90%
+     */
+    static const gint8 thresholds_data[] = { -106, -94, -82, -69, -57 };
 
     ctx = g_task_get_task_data (task);