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switch2: Send full init sequence from real hardware

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Vicki Pfau 2025-10-09 15:44:10 -07:00 • committed by Sam Lantinga
parent cdc1922801
commit 70bfdd013a
1 changed files with 42 additions and 7 deletions
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49
src/joystick/hidapi/SDL_hidapi_switch2.c
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@ -333,9 +333,42 @@ static bool HIDAPI_DriverSwitch2_InitUSB(SDL_HIDAPI_Device *device)
}
ctx->interface_claimed = true;
const unsigned char INIT_DATA[] = {
0x03, 0x91, 0x00, 0x0d, 0x00, 0x08, 0x00, 0x00,
0x01, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
const struct {
Uint8 size;
const Uint8 *data;
} init_sequence[] = {
{ 8, (Uint8[]) { // Unknown purpose
0x7, 0x91, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0,
}},
{ 8, (Uint8[]) { // Unknown purpose
0x16, 0x91, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0,
}},
{ 12, (Uint8[]) { // Set feature output bit mask
0x0c, 0x91, 0x00, 0x02, 0x00, 0x04, 0x00, 0x00, 0x27, 0x00, 0x00, 0x00
}},
{ 8, (Uint8[]) { // Unknown purpose
0x11, 0x91, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0,
}},
{ 28, (Uint8[]) { // Set rumble data?
0x0a, 0x91, 0x00, 0x08, 0x00, 0x14, 0x00, 0x00,
0x01, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0x35, 0x00, 0x46, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00
}},
{ 12, (Uint8[]) { // Enable feature output bits
0x0c, 0x91, 0x00, 0x04, 0x00, 0x04, 0x00, 0x00, 0x27, 0x00, 0x00, 0x00
}},
{ 8, (Uint8[]) { // Unknown purpose
0x10, 0x91, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0,
}},
{ 8, (Uint8[]) { // Enable rumble
0x01, 0x91, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0,
}},
{ 16, (Uint8[]) { // Start output
0x03, 0x91, 0x00, 0x0d, 0x00, 0x08, 0x00, 0x00,
0x01, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
}},
{ 0, NULL }, // Sentinel
};
unsigned char flash_read_command[] = {
0x02, 0x91, 0x00, 0x01, 0x00, 0x08, 0x00, 0x00,
@ -343,11 +376,13 @@ static bool HIDAPI_DriverSwitch2_InitUSB(SDL_HIDAPI_Device *device)
};
unsigned char calibration_data[0x50] = {0};
res = SendBulkData(ctx, INIT_DATA, sizeof(INIT_DATA));
if (res < 0) {
return SDL_SetError("Couldn't send initialization data: %d\n", res);
for (int i = 0; init_sequence[i].size; i++) {
res = SendBulkData(ctx, init_sequence[i].data, init_sequence[i].size);
if (res < 0) {
return SDL_SetError("Couldn't send initialization data: %d\n", res);
}
RecvBulkData(ctx, calibration_data, 0x40);
}
RecvBulkData(ctx, calibration_data, 0x40);
// Wait for initialization to complete
SDL_Delay(1);