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fix(native-usb): service masked completions and trace startup stalls

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Keep native backend locking IRQ-permitting and service USB hardware from SRAM during BOOTSEL sampling. Add bounded input/control flight recording, root IN and EP0 snapshots, and masked-window handoff coverage. Record PC qualification and the remaining Switch stability limitations.
This commit is contained in:
Joey Yakimowich-Payne 2026-09-14 13:55:35 -06:00
commit d424fe0f4a
12 changed files with 884 additions and 195 deletions
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26
tools/switch2_usb_probe/main.c
View file

@ -124,6 +124,10 @@ int probe_debug_printf(const char* format, ...) {
if (result <= 0) return result;
const size_t size = (size_t)result < sizeof(message) ? (size_t)result : sizeof(message) - 1;
const uint32_t interrupts = save_and_disable_interrupts();
#if SWITCH2_PROBE_HUB && defined(SWITCH2_PROBE_TRACE_NATIVE_INPUT)
const uint32_t mask_started = time_us_32();
const uint32_t trace_parent = native_hub_trace_phase(NATIVE_HUB_TRACE_PHASE_LOG_COPY);
#endif
if (LOG_CAPACITY - (log_written - log_read) >= size) {
for (size_t i = 0; i < size; ++i)
log_bytes[(log_written + i) % LOG_CAPACITY] = message[i];
@ -132,7 +136,14 @@ int probe_debug_printf(const char* format, ...) {
} else {
log_dropped += (uint32_t)result;
}
#if SWITCH2_PROBE_HUB && defined(SWITCH2_PROBE_TRACE_NATIVE_INPUT)
native_hub_trace_phase(trace_parent);
const uint32_t mask_elapsed = time_us_32() - mask_started;
#endif
restore_interrupts(interrupts);
#if SWITCH2_PROBE_HUB && defined(SWITCH2_PROBE_TRACE_NATIVE_INPUT)
native_hub_note_log_mask(mask_elapsed, (uint32_t)size, interrupts != 0);
#endif
return result;
}
@ -847,12 +858,24 @@ int main(void) {
uint32_t last_heartbeat = 0;
while (true) {
#if SWITCH2_PROBE_HUB
#if defined(SWITCH2_PROBE_TRACE_NATIVE_INPUT)
native_hub_trace_phase(NATIVE_HUB_TRACE_PHASE_RADIO_POLL);
#endif
probe_controller_input_task();
#if defined(SWITCH2_PROBE_TRACE_NATIVE_INPUT)
native_hub_trace_phase(NATIVE_HUB_TRACE_PHASE_USB_TASK);
#endif
native_hub_task();
#else
tud_task();
#endif
#if SWITCH2_PROBE_HUB && defined(SWITCH2_PROBE_TRACE_NATIVE_INPUT)
native_hub_trace_phase(NATIVE_HUB_TRACE_PHASE_LOG_DRAIN);
#endif
drain_log();
#if SWITCH2_PROBE_HUB && defined(SWITCH2_PROBE_TRACE_NATIVE_INPUT)
native_hub_trace_phase(NATIVE_HUB_TRACE_PHASE_PROTOCOL);
#endif
const uint32_t now = to_ms_since_boot(get_absolute_time());
#ifdef SWITCH_PICO_SWITCH2_USB_BRIDGE
probe_bootsel_task(now);
@ -917,6 +940,9 @@ int main(void) {
}
#endif
}
#if SWITCH2_PROBE_HUB && defined(SWITCH2_PROBE_TRACE_NATIVE_INPUT)
native_hub_trace_phase(NATIVE_HUB_TRACE_PHASE_SLEEP);
#endif
sleep_us(100);
}
}

10
tools/switch2_usb_probe/probe_build.cmake
View file

@ -369,12 +369,16 @@ function(switch2_usb_probe_configure target)
endif()
if(SWITCH2_PROBE_HUB AND SWITCH2_BRIDGE_FULL_INPUT)
if(SWITCH2_PROBE_TRACE_NATIVE_INPUT)
pico_set_program_version(${target} "0.78-native-tx-bank-trace")
pico_set_program_version(${target} "0.87-native-enumeration-flight")
else()
pico_set_program_version(${target} "0.78-native-gamepad")
pico_set_program_version(${target} "0.86-native-flash-service")
endif()
elseif(SWITCH2_PROBE_HUB)
pico_set_program_version(${target} "0.78-native-hub-tx-bank")
if(SWITCH2_PROBE_TRACE_NATIVE_INPUT)
pico_set_program_version(${target} "0.87-native-hub-enumeration-flight")
else()
pico_set_program_version(${target} "0.86-native-hub-flash-service")
endif()
elseif(SWITCH2_PROBE_JOIN_CHORD_GATE)
if(SWITCH2_PROBE_TRACE_NATIVE_INPUT)
pico_set_program_version(${target} "0.37-pair-chord-trace")