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Refactored HIDAPI controller code to support dongles and hubs that dynamically attach controllers

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This commit is contained in:
Sam Lantinga
2019-12-19 15:01:30 -08:00
parent 5d5a56717f
commit e7f7e3f40f
6 changed files with 505 additions and 229 deletions
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111
src/joystick/hidapi/SDL_hidapi_switch.c
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@@ -223,6 +223,23 @@ typedef struct {
} SDL_DriverSwitch_Context;
static SDL_bool IsGameCubeFormFactor(int vendor_id, int product_id)
{
static Uint32 gamecube_formfactor[] = {
MAKE_VIDPID(0x0e6f, 0x0185), /* PDP Wired Fight Pad Pro for Nintendo Switch */
MAKE_VIDPID(0x20d6, 0xa711), /* Core (Plus) Wired Controller */
};
Uint32 id = MAKE_VIDPID(vendor_id, product_id);
int i;
for (i = 0; i < SDL_arraysize(gamecube_formfactor); ++i) {
if (id == gamecube_formfactor[i]) {
return SDL_TRUE;
}
}
return SDL_FALSE;
}
static SDL_bool
HIDAPI_DriverSwitch_IsSupportedDevice(Uint16 vendor_id, Uint16 product_id, Uint16 version, int interface_number, const char *name)
{
@@ -604,9 +621,15 @@ static Uint8 RemapButton(SDL_DriverSwitch_Context *ctx, Uint8 button)
}
return button;
}
static SDL_bool
HIDAPI_DriverSwitch_Init(SDL_Joystick *joystick, hid_device *dev, Uint16 vendor_id, Uint16 product_id, void **context)
HIDAPI_DriverSwitch_InitDevice(SDL_HIDAPI_Device *device)
{
return HIDAPI_JoystickConnected(device, NULL);
}
static SDL_bool
HIDAPI_DriverSwitch_OpenJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick)
{
SDL_DriverSwitch_Context *ctx;
Uint8 input_mode;
@@ -616,15 +639,19 @@ HIDAPI_DriverSwitch_Init(SDL_Joystick *joystick, hid_device *dev, Uint16 vendor_
SDL_OutOfMemory();
return SDL_FALSE;
}
ctx->dev = dev;
*context = ctx;
device->dev = ctx->dev = hid_open_path(device->path, 0);
if (!device->dev) {
SDL_SetError("Couldn't open %s", device->path);
goto error;
}
device->context = ctx;
/* Find out whether or not we can send output reports */
ctx->m_bInputOnly = SDL_IsJoystickNintendoSwitchProInputOnly(vendor_id, product_id);
ctx->m_bInputOnly = SDL_IsJoystickNintendoSwitchProInputOnly(device->vendor_id, device->product_id);
if (!ctx->m_bInputOnly) {
/* The Power A Nintendo Switch Pro controllers don't have a Home LED */
ctx->m_bHasHomeLED = (vendor_id != 0 && product_id != 0) ? SDL_TRUE : SDL_FALSE;
ctx->m_bHasHomeLED = (device->vendor_id != 0 && device->product_id != 0) ? SDL_TRUE : SDL_FALSE;
/* Initialize rumble data */
SetNeutralRumble(&ctx->m_RumblePacket.rumbleData[0]);
@@ -637,14 +664,12 @@ HIDAPI_DriverSwitch_Init(SDL_Joystick *joystick, hid_device *dev, Uint16 vendor_
if (!LoadStickCalibration(ctx)) {
SDL_SetError("Couldn't load stick calibration");
SDL_free(ctx);
return SDL_FALSE;
goto error;
}
if (!SetVibrationEnabled(ctx, 1)) {
SDL_SetError("Couldn't enable vibration");
SDL_free(ctx);
return SDL_FALSE;
goto error;
}
/* Set the desired input mode */
@@ -655,8 +680,7 @@ HIDAPI_DriverSwitch_Init(SDL_Joystick *joystick, hid_device *dev, Uint16 vendor_
}
if (!SetInputMode(ctx, input_mode)) {
SDL_SetError("Couldn't set input mode");
SDL_free(ctx);
return SDL_FALSE;
goto error;
}
/* Start sending USB reports */
@@ -664,8 +688,7 @@ HIDAPI_DriverSwitch_Init(SDL_Joystick *joystick, hid_device *dev, Uint16 vendor_
/* ForceUSB doesn't generate an ACK, so don't wait for a reply */
if (!WriteProprietary(ctx, k_eSwitchProprietaryCommandIDs_ForceUSB, NULL, 0, SDL_FALSE)) {
SDL_SetError("Couldn't start USB reports");
SDL_free(ctx);
return SDL_FALSE;
goto error;
}
}
@@ -676,7 +699,7 @@ HIDAPI_DriverSwitch_Init(SDL_Joystick *joystick, hid_device *dev, Uint16 vendor_
SetSlotLED(ctx, (joystick->instance_id % 4));
}
if (vendor_id == 0x0e6f && product_id == 0x0185) {
if (IsGameCubeFormFactor(device->vendor_id, device->product_id)) {
/* This is a controller shaped like a GameCube controller, with a large central A button */
ctx->m_bUseButtonLabels = SDL_TRUE;
} else {
@@ -690,12 +713,23 @@ HIDAPI_DriverSwitch_Init(SDL_Joystick *joystick, hid_device *dev, Uint16 vendor_
joystick->epowerlevel = SDL_JOYSTICK_POWER_WIRED;
return SDL_TRUE;
error:
if (device->dev) {
hid_close(device->dev);
device->dev = NULL;
}
if (device->context) {
SDL_free(device->context);
device->context = NULL;
}
return SDL_FALSE;
}
static int
HIDAPI_DriverSwitch_Rumble(SDL_Joystick *joystick, hid_device *dev, void *context, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble, Uint32 duration_ms)
HIDAPI_DriverSwitch_RumbleJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble, Uint32 duration_ms)
{
SDL_DriverSwitch_Context *ctx = (SDL_DriverSwitch_Context *)context;
SDL_DriverSwitch_Context *ctx = (SDL_DriverSwitch_Context *)device->context;
/* Experimentally determined rumble values. These will only matter on some controllers as tested ones
* seem to disregard these and just use any non-zero rumble values as a binary flag for constant rumble
@@ -996,11 +1030,19 @@ static void HandleFullControllerState(SDL_Joystick *joystick, SDL_DriverSwitch_C
}
static SDL_bool
HIDAPI_DriverSwitch_Update(SDL_Joystick *joystick, hid_device *dev, void *context)
HIDAPI_DriverSwitch_UpdateDevice(SDL_HIDAPI_Device *device)
{
SDL_DriverSwitch_Context *ctx = (SDL_DriverSwitch_Context *)context;
SDL_DriverSwitch_Context *ctx = (SDL_DriverSwitch_Context *)device->context;
SDL_Joystick *joystick = NULL;
int size;
if (device->num_joysticks > 0) {
joystick = SDL_JoystickFromInstanceID(device->joysticks[0]);
}
if (!joystick) {
return SDL_FALSE;
}
while ((size = ReadInput(ctx)) > 0) {
if (ctx->m_bInputOnly) {
HandleInputOnlyControllerState(joystick, ctx, (SwitchInputOnlyControllerStatePacket_t *)&ctx->m_rgucReadBuffer[0]);
@@ -1021,17 +1063,21 @@ HIDAPI_DriverSwitch_Update(SDL_Joystick *joystick, hid_device *dev, void *contex
if (ctx->m_nRumbleExpiration) {
Uint32 now = SDL_GetTicks();
if (SDL_TICKS_PASSED(now, ctx->m_nRumbleExpiration)) {
HIDAPI_DriverSwitch_Rumble(joystick, dev, context, 0, 0, 0);
HIDAPI_DriverSwitch_RumbleJoystick(device, joystick, 0, 0, 0);
}
}
if (size < 0) {
/* Read error, device is disconnected */
HIDAPI_JoystickDisconnected(device, joystick->instance_id);
}
return (size >= 0);
}
static void
HIDAPI_DriverSwitch_Quit(SDL_Joystick *joystick, hid_device *dev, void *context)
HIDAPI_DriverSwitch_CloseJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick)
{
SDL_DriverSwitch_Context *ctx = (SDL_DriverSwitch_Context *)context;
SDL_DriverSwitch_Context *ctx = (SDL_DriverSwitch_Context *)device->context;
if (!ctx->m_bInputOnly) {
/* Restore simple input mode for other applications */
@@ -1041,7 +1087,16 @@ HIDAPI_DriverSwitch_Quit(SDL_Joystick *joystick, hid_device *dev, void *context)
SDL_DelHintCallback(SDL_HINT_GAMECONTROLLER_USE_BUTTON_LABELS,
SDL_GameControllerButtonReportingHintChanged, ctx);
SDL_free(context);
hid_close(device->dev);
device->dev = NULL;
SDL_free(device->context);
device->context = NULL;
}
static void
HIDAPI_DriverSwitch_FreeDevice(SDL_HIDAPI_Device *device)
{
}
SDL_HIDAPI_DeviceDriver SDL_HIDAPI_DriverSwitch =
@@ -1050,10 +1105,12 @@ SDL_HIDAPI_DeviceDriver SDL_HIDAPI_DriverSwitch =
SDL_TRUE,
HIDAPI_DriverSwitch_IsSupportedDevice,
HIDAPI_DriverSwitch_GetDeviceName,
HIDAPI_DriverSwitch_Init,
HIDAPI_DriverSwitch_Rumble,
HIDAPI_DriverSwitch_Update,
HIDAPI_DriverSwitch_Quit
HIDAPI_DriverSwitch_InitDevice,
HIDAPI_DriverSwitch_UpdateDevice,
HIDAPI_DriverSwitch_OpenJoystick,
HIDAPI_DriverSwitch_RumbleJoystick,
HIDAPI_DriverSwitch_CloseJoystick,
HIDAPI_DriverSwitch_FreeDevice
};
#endif /* SDL_JOYSTICK_HIDAPI_SWITCH */