[FL-905] Add battery health state monitoring in power app (#358)

* add battery health reading from gauge
* add battery health reading to api-hal-power
* update battery health in power application

Co-authored-by: あく <alleteam@gmail.com>

applications/power/power.c

@@ -205,6 +205,7 @@ int32_t power_task(void* p) {
         with_view_model(
             power->info_view, (PowerInfoModel * model) {
                 model->charge = api_hal_power_get_pct();
+                model->health = api_hal_power_get_bat_health_pct();
                 model->capacity_remaining = api_hal_power_get_battery_remaining_capacity();
                 model->capacity_full = api_hal_power_get_battery_full_capacity();
                 model->current_charger = api_hal_power_get_battery_current(ApiHalPowerICCharger);

applications/power/power_views.c

@@ -24,7 +24,12 @@ void power_info_draw_callback(Canvas* canvas, void* context) {
         (uint32_t)(data->voltage_gauge * 1000),
         (uint32_t)(data->voltage_charger * 1000));
     canvas_draw_str(canvas, 5, 32, buffer);
-    snprintf(buffer, 64, "Charge: %ld%%", (uint32_t)(data->charge));
+    snprintf(
+        buffer,
+        64,
+        "Charge: %ld%% Health: %ld%%",
+        (uint32_t)(data->charge),
+        (uint32_t)(data->health));
     canvas_draw_str(canvas, 5, 42, buffer);
     snprintf(buffer, 64, "Capacity: %ld of %ldmAh", data->capacity_remaining, data->capacity_full);
     canvas_draw_str(canvas, 5, 52, buffer);

applications/power/power_views.h

@@ -22,6 +22,7 @@ typedef struct {
     float temperature_gauge;
 
     uint8_t charge;
+    uint8_t health;
 } PowerInfoModel;
 
 void power_info_draw_callback(Canvas* canvas, void* context);

firmware/targets/api-hal-include/api-hal-power.h

@@ -44,6 +44,9 @@ void api_hal_power_deep_sleep();
 /* Get predicted remaining battery capacity in percents */
 uint8_t api_hal_power_get_pct();
 
+/* Get battery health state in percents */
+uint8_t api_hal_power_get_bat_health_pct();
+
 /* Get charging status */
 bool api_hal_power_is_charging();
 

firmware/targets/f4/api-hal/api-hal-power.c

@@ -90,6 +90,10 @@ uint8_t api_hal_power_get_pct() {
     return bq27220_get_state_of_charge();
 }
 
+uint8_t api_hal_power_get_bat_health_pct() {
+    return bq27220_get_state_of_health();
+}
+
 bool api_hal_power_is_charging() {
     return bq25896_is_charging();
 }
@@ -175,9 +179,9 @@ void api_hal_power_dump_state(string_t buffer) {
         );
         // Voltage and current info
         string_cat_printf(buffer,
-            "bq27220: Full capacity: %dmAh, Remaining capacity: %dmAh, State of Charge: %d%%\r\n",
+            "bq27220: Full capacity: %dmAh, Remaining capacity: %dmAh, State of Charge: %d%%, State of health: %d%%\r\n",
             bq27220_get_full_charge_capacity(), bq27220_get_remaining_capacity(),
-            bq27220_get_state_of_charge()
+            bq27220_get_state_of_charge(), bq27220_get_state_of_health()
         );
         string_cat_printf(buffer,
             "bq27220: Voltage: %dmV, Current: %dmA, Temperature: %dC\r\n",

firmware/targets/f5/api-hal/api-hal-power.c

@@ -90,6 +90,10 @@ uint8_t api_hal_power_get_pct() {
     return bq27220_get_state_of_charge();
 }
 
+uint8_t api_hal_power_get_bat_health_pct() {
+    return bq27220_get_state_of_health();
+}
+
 bool api_hal_power_is_charging() {
     return bq25896_is_charging();
 }
@@ -175,9 +179,9 @@ void api_hal_power_dump_state(string_t buffer) {
         );
         // Voltage and current info
         string_cat_printf(buffer,
-            "bq27220: Full capacity: %dmAh, Remaining capacity: %dmAh, State of Charge: %d%%\r\n",
+            "bq27220: Full capacity: %dmAh, Remaining capacity: %dmAh, State of Charge: %d%%, State of health: %d%%\r\n",
             bq27220_get_full_charge_capacity(), bq27220_get_remaining_capacity(),
-            bq27220_get_state_of_charge()
+            bq27220_get_state_of_charge(), bq27220_get_state_of_health()
         );
         string_cat_printf(buffer,
             "bq27220: Voltage: %dmV, Current: %dmA, Temperature: %dC\r\n",

lib/drivers/bq27220.c

@@ -79,3 +79,7 @@ uint16_t bq27220_get_remaining_capacity() {
 uint16_t bq27220_get_state_of_charge() {
     return bq27220_read_word(CommandStateOfCharge);
 }
+
+uint16_t bq27220_get_state_of_health() {
+    return bq27220_read_word(CommandStateOfHealth);
+}

lib/drivers/bq27220.h

@@ -69,3 +69,6 @@ uint16_t bq27220_get_remaining_capacity();
 
 /* Get predicted remaining battery capacity in percents */
 uint16_t bq27220_get_state_of_charge();
+
+/* Get ratio of full charge capacity over design capacity in percents */
+uint16_t bq27220_get_state_of_health();