| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org> |
| |
| This software is provided 'as-is', without any express or implied |
| warranty. In no event will the authors be held liable for any damages |
| arising from the use of this software. |
| |
| Permission is granted to anyone to use this software for any purpose, |
| including commercial applications, and to alter it and redistribute it |
| freely, subject to the following restrictions: |
| |
| 1. The origin of this software must not be misrepresented; you must not |
| claim that you wrote the original software. If you use this software |
| in a product, an acknowledgment in the product documentation would be |
| appreciated but is not required. |
| 2. Altered source versions must be plainly marked as such, and must not be |
| misrepresented as being the original software. |
| 3. This notice may not be removed or altered from any source distribution. |
| */ |
| #include "../../SDL_internal.h" |
| |
| #ifdef SDL_JOYSTICK_HIDAPI |
| |
| #include "SDL_hints.h" |
| #include "SDL_events.h" |
| #include "SDL_timer.h" |
| #include "SDL_joystick.h" |
| #include "SDL_gamecontroller.h" |
| #include "../SDL_sysjoystick.h" |
| #include "SDL_hidapijoystick_c.h" |
| #include "SDL_hidapi_rumble.h" |
| |
| |
| #ifdef SDL_JOYSTICK_HIDAPI_XBOX360 |
| |
| |
| typedef struct { |
| SDL_bool connected; |
| Uint8 last_state[USB_PACKET_LENGTH]; |
| } SDL_DriverXbox360W_Context; |
| |
| |
| static SDL_bool |
| HIDAPI_DriverXbox360W_IsSupportedDevice(const char *name, SDL_GameControllerType type, Uint16 vendor_id, Uint16 product_id, Uint16 version, int interface_number, int interface_class, int interface_subclass, int interface_protocol) |
| { |
| const int XB360W_IFACE_PROTOCOL = 129; /* Wireless */ |
| |
| if ((vendor_id == USB_VENDOR_MICROSOFT && (product_id == 0x0291 || product_id == 0x02a9 || product_id == 0x0719)) || |
| (type == SDL_CONTROLLER_TYPE_XBOX360 && interface_protocol == XB360W_IFACE_PROTOCOL)) { |
| return SDL_TRUE; |
| } |
| return SDL_FALSE; |
| } |
| |
| static const char * |
| HIDAPI_DriverXbox360W_GetDeviceName(Uint16 vendor_id, Uint16 product_id) |
| { |
| return "Xbox 360 Wireless Controller"; |
| } |
| |
| static SDL_bool SetSlotLED(hid_device *dev, Uint8 slot) |
| { |
| Uint8 mode = 0x02 + slot; |
| const Uint8 led_packet[] = { 0x00, 0x00, 0x08, (0x40 + (mode % 0x0e)), 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; |
| |
| if (hid_write(dev, led_packet, sizeof(led_packet)) != sizeof(led_packet)) { |
| return SDL_FALSE; |
| } |
| return SDL_TRUE; |
| } |
| |
| static void |
| UpdatePowerLevel(SDL_Joystick *joystick, Uint8 level) |
| { |
| float normalized_level = (float)level / 255.0f; |
| |
| if (normalized_level <= 0.05f) { |
| joystick->epowerlevel = SDL_JOYSTICK_POWER_EMPTY; |
| } else if (normalized_level <= 0.20f) { |
| joystick->epowerlevel = SDL_JOYSTICK_POWER_LOW; |
| } else if (normalized_level <= 0.70f) { |
| joystick->epowerlevel = SDL_JOYSTICK_POWER_MEDIUM; |
| } else { |
| joystick->epowerlevel = SDL_JOYSTICK_POWER_FULL; |
| } |
| } |
| |
| static SDL_bool |
| HIDAPI_DriverXbox360W_InitDevice(SDL_HIDAPI_Device *device) |
| { |
| SDL_DriverXbox360W_Context *ctx; |
| |
| /* Requests controller presence information from the wireless dongle */ |
| const Uint8 init_packet[] = { 0x08, 0x00, 0x0F, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; |
| |
| ctx = (SDL_DriverXbox360W_Context *)SDL_calloc(1, sizeof(*ctx)); |
| if (!ctx) { |
| SDL_OutOfMemory(); |
| return SDL_FALSE; |
| } |
| |
| device->dev = hid_open_path(device->path, 0); |
| if (!device->dev) { |
| SDL_free(ctx); |
| SDL_SetError("Couldn't open %s", device->path); |
| return SDL_FALSE; |
| } |
| device->context = ctx; |
| |
| if (hid_write(device->dev, init_packet, sizeof(init_packet)) != sizeof(init_packet)) { |
| SDL_SetError("Couldn't write init packet"); |
| return SDL_FALSE; |
| } |
| |
| return SDL_TRUE; |
| } |
| |
| static int |
| HIDAPI_DriverXbox360W_GetDevicePlayerIndex(SDL_HIDAPI_Device *device, SDL_JoystickID instance_id) |
| { |
| return -1; |
| } |
| |
| static void |
| HIDAPI_DriverXbox360W_SetDevicePlayerIndex(SDL_HIDAPI_Device *device, SDL_JoystickID instance_id, int player_index) |
| { |
| SetSlotLED(device->dev, (player_index % 4)); |
| } |
| |
| static SDL_bool |
| HIDAPI_DriverXbox360W_OpenJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick) |
| { |
| SDL_DriverXbox360W_Context *ctx = (SDL_DriverXbox360W_Context *)device->context; |
| |
| SDL_zeroa(ctx->last_state); |
| |
| /* Initialize the joystick capabilities */ |
| joystick->nbuttons = SDL_CONTROLLER_BUTTON_MAX; |
| joystick->naxes = SDL_CONTROLLER_AXIS_MAX; |
| joystick->epowerlevel = SDL_JOYSTICK_POWER_UNKNOWN; |
| |
| return SDL_TRUE; |
| } |
| |
| static int |
| HIDAPI_DriverXbox360W_RumbleJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble) |
| { |
| Uint8 rumble_packet[] = { 0x00, 0x01, 0x0f, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; |
| |
| rumble_packet[5] = (low_frequency_rumble >> 8); |
| rumble_packet[6] = (high_frequency_rumble >> 8); |
| |
| if (SDL_HIDAPI_SendRumble(device, rumble_packet, sizeof(rumble_packet)) != sizeof(rumble_packet)) { |
| return SDL_SetError("Couldn't send rumble packet"); |
| } |
| return 0; |
| } |
| |
| static void |
| HIDAPI_DriverXbox360W_HandleStatePacket(SDL_Joystick *joystick, hid_device *dev, SDL_DriverXbox360W_Context *ctx, Uint8 *data, int size) |
| { |
| Sint16 axis; |
| const SDL_bool invert_y_axes = SDL_TRUE; |
| |
| if (ctx->last_state[2] != data[2]) { |
| SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_DPAD_UP, (data[2] & 0x01) ? SDL_PRESSED : SDL_RELEASED); |
| SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_DPAD_DOWN, (data[2] & 0x02) ? SDL_PRESSED : SDL_RELEASED); |
| SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_DPAD_LEFT, (data[2] & 0x04) ? SDL_PRESSED : SDL_RELEASED); |
| SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_DPAD_RIGHT, (data[2] & 0x08) ? SDL_PRESSED : SDL_RELEASED); |
| SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_START, (data[2] & 0x10) ? SDL_PRESSED : SDL_RELEASED); |
| SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_BACK, (data[2] & 0x20) ? SDL_PRESSED : SDL_RELEASED); |
| SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_LEFTSTICK, (data[2] & 0x40) ? SDL_PRESSED : SDL_RELEASED); |
| SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_RIGHTSTICK, (data[2] & 0x80) ? SDL_PRESSED : SDL_RELEASED); |
| } |
| |
| if (ctx->last_state[3] != data[3]) { |
| SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_LEFTSHOULDER, (data[3] & 0x01) ? SDL_PRESSED : SDL_RELEASED); |
| SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER, (data[3] & 0x02) ? SDL_PRESSED : SDL_RELEASED); |
| SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_GUIDE, (data[3] & 0x04) ? SDL_PRESSED : SDL_RELEASED); |
| SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_A, (data[3] & 0x10) ? SDL_PRESSED : SDL_RELEASED); |
| SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_B, (data[3] & 0x20) ? SDL_PRESSED : SDL_RELEASED); |
| SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_X, (data[3] & 0x40) ? SDL_PRESSED : SDL_RELEASED); |
| SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_Y, (data[3] & 0x80) ? SDL_PRESSED : SDL_RELEASED); |
| } |
| |
| axis = ((int)data[4] * 257) - 32768; |
| SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_TRIGGERLEFT, axis); |
| axis = ((int)data[5] * 257) - 32768; |
| SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_TRIGGERRIGHT, axis); |
| axis = *(Sint16*)(&data[6]); |
| SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_LEFTX, axis); |
| axis = *(Sint16*)(&data[8]); |
| if (invert_y_axes) { |
| axis = ~axis; |
| } |
| SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_LEFTY, axis); |
| axis = *(Sint16*)(&data[10]); |
| SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_RIGHTX, axis); |
| axis = *(Sint16*)(&data[12]); |
| if (invert_y_axes) { |
| axis = ~axis; |
| } |
| SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_RIGHTY, axis); |
| |
| SDL_memcpy(ctx->last_state, data, SDL_min(size, sizeof(ctx->last_state))); |
| } |
| |
| static SDL_bool |
| HIDAPI_DriverXbox360W_UpdateDevice(SDL_HIDAPI_Device *device) |
| { |
| SDL_DriverXbox360W_Context *ctx = (SDL_DriverXbox360W_Context *)device->context; |
| SDL_Joystick *joystick = NULL; |
| Uint8 data[USB_PACKET_LENGTH]; |
| int size; |
| |
| if (device->num_joysticks > 0) { |
| joystick = SDL_JoystickFromInstanceID(device->joysticks[0]); |
| } |
| |
| while ((size = hid_read_timeout(device->dev, data, sizeof(data), 0)) > 0) { |
| if (size == 2 && data[0] == 0x08) { |
| SDL_bool connected = (data[1] & 0x80) ? SDL_TRUE : SDL_FALSE; |
| #ifdef DEBUG_JOYSTICK |
| SDL_Log("Connected = %s\n", connected ? "TRUE" : "FALSE"); |
| #endif |
| if (connected != ctx->connected) { |
| ctx->connected = connected; |
| |
| if (connected) { |
| SDL_JoystickID joystickID; |
| |
| HIDAPI_JoystickConnected(device, &joystickID, SDL_FALSE); |
| |
| } else if (device->num_joysticks > 0) { |
| HIDAPI_JoystickDisconnected(device, device->joysticks[0], SDL_FALSE); |
| } |
| } |
| } else if (size == 29 && data[0] == 0x00 && data[1] == 0x0f && data[2] == 0x00 && data[3] == 0xf0) { |
| /* Serial number is data[7-13] */ |
| #ifdef DEBUG_JOYSTICK |
| SDL_Log("Battery status (initial): %d\n", data[17]); |
| #endif |
| if (joystick) { |
| UpdatePowerLevel(joystick, data[17]); |
| } |
| } else if (size == 29 && data[0] == 0x00 && data[1] == 0x00 && data[2] == 0x00 && data[3] == 0x13) { |
| #ifdef DEBUG_JOYSTICK |
| SDL_Log("Battery status: %d\n", data[4]); |
| #endif |
| if (joystick) { |
| UpdatePowerLevel(joystick, data[4]); |
| } |
| } else if (size == 29 && data[0] == 0x00 && (data[1] & 0x01) == 0x01) { |
| if (joystick) { |
| HIDAPI_DriverXbox360W_HandleStatePacket(joystick, device->dev, ctx, data+4, size-4); |
| } |
| } |
| } |
| |
| if (joystick) { |
| if (size < 0) { |
| /* Read error, device is disconnected */ |
| HIDAPI_JoystickDisconnected(device, joystick->instance_id, SDL_FALSE); |
| } |
| } |
| return (size >= 0); |
| } |
| |
| static void |
| HIDAPI_DriverXbox360W_CloseJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick) |
| { |
| } |
| |
| static void |
| HIDAPI_DriverXbox360W_FreeDevice(SDL_HIDAPI_Device *device) |
| { |
| hid_close(device->dev); |
| device->dev = NULL; |
| |
| SDL_free(device->context); |
| device->context = NULL; |
| } |
| |
| SDL_HIDAPI_DeviceDriver SDL_HIDAPI_DriverXbox360W = |
| { |
| SDL_HINT_JOYSTICK_HIDAPI_XBOX, |
| SDL_TRUE, |
| HIDAPI_DriverXbox360W_IsSupportedDevice, |
| HIDAPI_DriverXbox360W_GetDeviceName, |
| HIDAPI_DriverXbox360W_InitDevice, |
| HIDAPI_DriverXbox360W_GetDevicePlayerIndex, |
| HIDAPI_DriverXbox360W_SetDevicePlayerIndex, |
| HIDAPI_DriverXbox360W_UpdateDevice, |
| HIDAPI_DriverXbox360W_OpenJoystick, |
| HIDAPI_DriverXbox360W_RumbleJoystick, |
| HIDAPI_DriverXbox360W_CloseJoystick, |
| HIDAPI_DriverXbox360W_FreeDevice, |
| NULL |
| }; |
| |
| #endif /* SDL_JOYSTICK_HIDAPI_XBOX360 */ |
| |
| #endif /* SDL_JOYSTICK_HIDAPI */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |