Add core handling for pointing device failures. (#25315)

tests/pointing/test_pointing.cpp

@@ -12,6 +12,26 @@ using testing::_;
 class Pointing : public TestFixture {};
 class PointingButtonsViaMousekeysParametrized : public ::testing::WithParamInterface<std::pair<KeymapKey, uint8_t>>, public Pointing {};
 
+TEST_F(Pointing, NoMovementOnInitFailure) {
+    TestDriver driver;
+
+    pointing_device_set_status(POINTING_DEVICE_STATUS_INIT_FAILED);
+    pd_set_x(-50);
+    pd_set_y(100);
+    EXPECT_NO_MOUSE_REPORT(driver);
+    run_one_scan_loop();
+
+    pointing_device_set_status(POINTING_DEVICE_STATUS_SUCCESS);
+    EXPECT_MOUSE_REPORT(driver, (-50, 100, 0, 0, 0));
+    run_one_scan_loop();
+
+    pd_clear_movement();
+    // EXPECT_EMPTY_MOUSE_REPORT(driver);
+    run_one_scan_loop();
+
+    VERIFY_AND_CLEAR(driver);
+}
+
 TEST_F(Pointing, SendMouseIsNotCalledWithNoInput) {
     TestDriver driver;
     EXPECT_NO_MOUSE_REPORT(driver);

tests/test_common/pointing_device_driver.c

@@ -22,8 +22,9 @@ typedef struct {
 
 static pd_config_t pd_config = {0};
 
-void pointing_device_driver_init(void) {
+bool pointing_device_driver_init(void) {
     pd_set_init(true);
+    return pd_config.initiated;
 }
 
 report_mouse_t pointing_device_driver_get_report(report_mouse_t mouse_report) {