jyapayne/switch-pico
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Prototype adapter XInput feasibility

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This commit is contained in:
Joey Yakimowich-Payne 2026-09-02 07:53:18 -06:00
commit 17b3d7399c
13 changed files with 953 additions and 13 deletions
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64
switch-pico.cpp
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@ -8,6 +8,10 @@
#else
#include "bluepad32_input_backend.h"
#include "bootsel_pairing_button.h"
#ifdef SWITCH_PICO_ADAPTER_FEASIBILITY
#include "adapter_host_probe.h"
#include "xinput_feasibility_driver.h"
#endif
#endif
#ifdef SWITCH_PICO_LOG
@ -177,11 +181,26 @@ static void log_usb_state() {
#ifdef SWITCH_PICO_BLUEPAD32
for (uint8_t instance = 0;
instance < BLUEPAD32_INPUT_BACKEND_SLOT_COUNT; ++instance) {
#ifdef SWITCH_PICO_ADAPTER_FEASIBILITY
const bool ready =
adapter_host_probe_mode() == AdapterUsbMode::kXInput
? xinput_feasibility_is_ready(instance)
: switch_pro_is_ready(instance);
#else
const bool ready = switch_pro_is_ready(instance);
#endif
if (ready != g_last_ready[instance]) {
g_last_ready[instance] = ready;
#ifdef SWITCH_PICO_ADAPTER_FEASIBILITY
LOG_PRINTF("[%s %u] driver %s\n",
adapter_host_probe_mode() == AdapterUsbMode::kXInput
? "XINPUT"
: "SWITCH",
instance, ready ? "ready" : "not ready");
#else
LOG_PRINTF("[SWITCH %u] driver %s\n", instance,
ready ? "ready (handshake OK)" : "not ready");
#endif
}
}
#else
@ -200,6 +219,9 @@ int main() {
#ifdef SWITCH_PICO_BLUEPAD32
bluepad32_input_backend_init();
#ifdef SWITCH_PICO_ADAPTER_FEASIBILITY
adapter_host_probe_init();
#endif
#else
init_uart_input();
#endif
@ -208,10 +230,27 @@ int main() {
#ifdef SWITCH_PICO_BLUEPAD32
for (uint8_t instance = 0;
instance < BLUEPAD32_INPUT_BACKEND_SLOT_COUNT; ++instance) {
#ifdef SWITCH_PICO_ADAPTER_FEASIBILITY
if (adapter_host_probe_mode() == AdapterUsbMode::kXInput) {
xinput_feasibility_init(instance);
xinput_feasibility_set_rumble_callback(
instance, on_rumble_from_switch);
g_user_states[instance] = neutral_input();
xinput_feasibility_set_input(instance,
g_user_states[instance]);
} else {
switch_pro_init(instance);
switch_pro_set_rumble_callback(instance,
on_rumble_from_switch);
g_user_states[instance] = neutral_input();
switch_pro_set_input(instance, g_user_states[instance]);
}
#else
switch_pro_init(instance);
switch_pro_set_rumble_callback(instance, on_rumble_from_switch);
g_user_states[instance] = neutral_input();
switch_pro_set_input(instance, g_user_states[instance]);
#endif
}
#else
switch_pro_init(SWITCH_HID_INSTANCE);
@ -223,7 +262,14 @@ int main() {
#ifdef SWITCH_PICO_BLUEPAD32
bluepad32_input_backend_start();
#ifdef SWITCH_PICO_ADAPTER_FEASIBILITY
LOG_PRINTF("[BOOT] adapter feasibility mode=%s\n",
adapter_host_probe_mode() == AdapterUsbMode::kXInput
? "XInput"
: "Switch probe");
#else
LOG_PRINTF("[BOOT] switch-pico starting (Bluepad32 wireless @ 115200)\n");
#endif
#else
LOG_PRINTF("[BOOT] switch-pico starting (UART0 log @ 115200)\n");
LOG_PRINTF("[INFO] UART1 pins TX=%d RX=%d baud=%d\n",
@ -232,6 +278,9 @@ int main() {
while (true) {
tud_task(); // USB device tasks
#ifdef SWITCH_PICO_ADAPTER_FEASIBILITY
adapter_host_probe_task();
#endif
#ifdef SWITCH_PICO_BLUEPAD32
switch (bootsel_pairing_button_task()) {
case BootselPairingButtonEvent::kOpenPairing:
@ -247,10 +296,25 @@ int main() {
instance < BLUEPAD32_INPUT_BACKEND_SLOT_COUNT; ++instance) {
bluepad32_input_backend_snapshot(instance,
&g_user_states[instance]);
#ifdef SWITCH_PICO_ADAPTER_FEASIBILITY
bool sent = false;
if (adapter_host_probe_mode() == AdapterUsbMode::kXInput) {
xinput_feasibility_set_input(instance,
g_user_states[instance]);
sent = xinput_feasibility_task(instance);
} else {
switch_pro_set_input(instance, g_user_states[instance]);
sent = switch_pro_task(instance);
}
if (sent) {
bluepad32_input_backend_report_sent(instance);
}
#else
switch_pro_set_input(instance, g_user_states[instance]);
if (switch_pro_task(instance)) {
bluepad32_input_backend_report_sent(instance);
}
#endif
}
#else
bool new_data = poll_uart_frames(); // Pull controller state from UART1