Initialize healthd_mode_ops in recovery default Health HAL impl.

This is required for correct functioning of getHealthInfo() API
in recovery since BatteryMonitor requires healthd_mode_ops to be
initialized to update battery properties.

Bug: 78793464
Test: fastboot getvar battery-voltage
Change-Id: I9ff77664cada22e4aa3668bfb7d28d5f1d45590b

2 files changed, 25 insertions, 2 deletions

diff --git a/health/2.0/default/Health.cpp b/health/2.0/default/Health.cpp
index 6d3be9923..e02bfa98d 100644
--- a/health/2.0/default/Health.cpp
+++ b/health/2.0/default/Health.cpp
@@ -142,7 +142,7 @@ Return<void> Health::getChargeStatus(getChargeStatus_cb _hidl_cb) {
 Return<Result> Health::update() {
     if (!healthd_mode_ops || !healthd_mode_ops->battery_update) {
         LOG(WARNING) << "health@2.0: update: not initialized. "
-                     << "update() should not be called in charger / recovery.";
+                     << "update() should not be called in charger";
         return Result::UNKNOWN;
     }
 
diff --git a/health/2.0/default/HealthImplDefault.cpp b/health/2.0/default/HealthImplDefault.cpp
index 15346bf6e..e3cbefdbe 100644
--- a/health/2.0/default/HealthImplDefault.cpp
+++ b/health/2.0/default/HealthImplDefault.cpp
@@ -46,9 +46,32 @@ int healthd_board_battery_update(struct android::BatteryProperties*) {
     return 0;
 }
 
+void healthd_mode_default_impl_init(struct healthd_config*) {
+    // noop
+}
+
+int healthd_mode_default_impl_preparetowait(void) {
+    return -1;
+}
+
+void healthd_mode_default_impl_heartbeat(void) {
+    // noop
+}
+
+void healthd_mode_default_impl_battery_update(struct android::BatteryProperties*) {
+    // noop
+}
+
+static struct healthd_mode_ops healthd_mode_default_impl_ops = {
+    .init = healthd_mode_default_impl_init,
+    .preparetowait = healthd_mode_default_impl_preparetowait,
+    .heartbeat = healthd_mode_default_impl_heartbeat,
+    .battery_update = healthd_mode_default_impl_battery_update,
+};
+
 extern "C" IHealth* HIDL_FETCH_IHealth(const char* name) {
     const static std::string providedInstance{"backup"};
-
+    healthd_mode_ops = &healthd_mode_default_impl_ops;
     if (providedInstance == name) {
         // use defaults
         // Health class stores static instance