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fix(native-usb): prevent transmit-bank starvation and retain battery telemetry

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This commit is contained in:
Joey Yakimowich-Payne 2026-09-13 21:00:17 -06:00
commit a699a6920b
16 changed files with 342 additions and 82 deletions
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8
tests/switch2_native_gamepad_bridge_test.cpp
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@ -121,7 +121,7 @@ void mapped_halves_and_calibration() {
source.controller.active = true;
source.controller.connection_generation = 7;
source.controller.identity = controller_identity_global();
source.battery = 255;
source.battery = 128;
publish();
// Neither an absent source nor an uncalibrated child masquerades as active.
assert(!peek(0) && !controls[0].active);
@ -132,7 +132,7 @@ void mapped_halves_and_calibration() {
pair();
assert(stick_x(0) == 2000 && stick_y(0) == 2100);
assert(stick_x(1) == 1800 && stick_y(1) == 1900);
assert(reports[0][1] == 0x25 && reports[1][1] == 0x25); // Known full level, USB powered, not charging.
assert(reports[0][1] == 0x15 && reports[1][1] == 0x15); // Measured half battery, USB powered, not charging.
// Actual profile transforms can move controls across native children.
profile.button_map[static_cast<unsigned>(ControllerProfileLogicalButton::kSouth)] =
static_cast<uint8_t>(ControllerProfileLogicalButton::kDpadRight);
@ -364,7 +364,7 @@ void nunchuk_buttons_map_to_native_left_shoulders() {
++source.controller.connection_generation;
source.controller.state = {};
source.accel_valid = source.gyro_valid = false;
source.battery = 0; // Unknown source battery must not invent a full charge.
source.battery = 0;
profile = controller_profile_default(controller_identity_global(), 0);
// The real Wii parser maps Nunchuk C to west and Z to north. These are
// ordinary profile inputs, not the unrelated Switch2 extra "C" control.
@ -375,7 +375,7 @@ void nunchuk_buttons_map_to_native_left_shoulders() {
source.controller.state.button_west = true; // C -> ZL.
publish(false); pair();
assert(reports[0][2] == 0 && reports[1][2] == 0x20);
assert(reports[0][1] == 0x01 && reports[1][1] == 0x01); // USB power remains real even without battery telemetry.
assert(reports[0][1] == 0x01 && reports[1][1] == 0x01);
source.controller.state.button_west = false;
source.controller.state.button_north = true; // Z -> L.
publish(false); pair();