Hi Luiz,
That's a good idea. Please take a look at the latest patch titled
"Reset battery value cache on disconnect".
On Tue, Mar 30, 2021 at 11:25 AM Luiz Augusto von Dentz
<luiz.dentz@xxxxxxxxx> wrote:
>
> Hi Sonny,
>
> On Tue, Mar 30, 2021 at 10:12 AM Sonny Sasaka <sonnysasaka@xxxxxxxxxxxx> wrote:
> >
> > Due to cache in gatt db, bluetoothd fails to update publish the battery
> > value after reconnection when the battery value does not change compared
> > to before reconnection. For initial battery value, we should update the
> > value to D-Bus regardless of the cache value.
> >
> > ---
> > profiles/battery/battery.c | 9 +++++----
> > 1 file changed, 5 insertions(+), 4 deletions(-)
> >
> > diff --git a/profiles/battery/battery.c b/profiles/battery/battery.c
> > index 81f849d57..0f8d6ef18 100644
> > --- a/profiles/battery/battery.c
> > +++ b/profiles/battery/battery.c
> > @@ -88,12 +88,13 @@ static void batt_reset(struct batt *batt)
> > }
> >
> > static void parse_battery_level(struct batt *batt,
> > - const uint8_t *value)
> > + const uint8_t *value,
> > + bool force_update)
> > {
> > uint8_t percentage;
> >
> > percentage = value[0];
> > - if (batt->percentage != percentage) {
> > + if (force_update || batt->percentage != percentage) {
> > batt->percentage = percentage;
> > DBG("Battery Level updated: %d%%", percentage);
> > if (!batt->battery) {
> > @@ -110,7 +111,7 @@ static void batt_io_value_cb(uint16_t value_handle, const uint8_t *value,
> > struct batt *batt = user_data;
> >
> > if (value_handle == batt->batt_level_io_handle) {
> > - parse_battery_level(batt, value);
> > + parse_battery_level(batt, value, false /* force_update */);
> > } else {
> > g_assert_not_reached();
> > }
> > @@ -134,7 +135,7 @@ static void batt_io_ccc_written_cb(uint16_t att_ecode, void *user_data)
> > return;
> > }
> >
> > - parse_battery_level(batt, batt->initial_value);
> > + parse_battery_level(batt, batt->initial_value, true /* force_update */);
>
> I guess it would have been better to reset the initial_value on disconnect.
>
> > g_free (batt->initial_value);
> > batt->initial_value = NULL;
> >
> > --
> > 2.29.2
> >
>
>
> --
> Luiz Augusto von Dentz
