5b646cd19e
This prevents conflicts with hidapi linked with applications, as well as allowing applications to make use of HIDAPI on Android and other platforms that might not normally have an implementation available.
359 lines
12 KiB
C
359 lines
12 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2021 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#ifdef SDL_JOYSTICK_HIDAPI
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#include "SDL_hints.h"
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#include "SDL_events.h"
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#include "SDL_timer.h"
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#include "SDL_joystick.h"
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#include "SDL_gamecontroller.h"
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#include "../SDL_sysjoystick.h"
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#include "SDL_hidapijoystick_c.h"
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#include "SDL_hidapi_rumble.h"
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#ifdef SDL_JOYSTICK_HIDAPI_XBOX360
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/* Define this if you want to log all packets from the controller */
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/*#define DEBUG_XBOX_PROTOCOL*/
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typedef struct {
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SDL_bool connected;
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Uint8 last_state[USB_PACKET_LENGTH];
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} SDL_DriverXbox360W_Context;
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static SDL_bool
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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)
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{
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const int XB360W_IFACE_PROTOCOL = 129; /* Wireless */
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if ((vendor_id == USB_VENDOR_MICROSOFT && (product_id == 0x0291 || product_id == 0x02a9 || product_id == 0x0719) && interface_protocol == 0) ||
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(type == SDL_CONTROLLER_TYPE_XBOX360 && interface_protocol == XB360W_IFACE_PROTOCOL)) {
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return SDL_TRUE;
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}
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return SDL_FALSE;
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}
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static const char *
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HIDAPI_DriverXbox360W_GetDeviceName(Uint16 vendor_id, Uint16 product_id)
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{
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return "Xbox 360 Wireless Controller";
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}
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static SDL_bool SetSlotLED(SDL_hid_device *dev, Uint8 slot)
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{
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const SDL_bool blink = SDL_FALSE;
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Uint8 mode = (blink ? 0x02 : 0x06) + slot;
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Uint8 led_packet[] = { 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
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led_packet[3] = 0x40 + (mode % 0x0e);
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if (SDL_hid_write(dev, led_packet, sizeof(led_packet)) != sizeof(led_packet)) {
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return SDL_FALSE;
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}
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return SDL_TRUE;
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}
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static void
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UpdatePowerLevel(SDL_Joystick *joystick, Uint8 level)
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{
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float normalized_level = (float)level / 255.0f;
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if (normalized_level <= 0.05f) {
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joystick->epowerlevel = SDL_JOYSTICK_POWER_EMPTY;
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} else if (normalized_level <= 0.20f) {
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joystick->epowerlevel = SDL_JOYSTICK_POWER_LOW;
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} else if (normalized_level <= 0.70f) {
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joystick->epowerlevel = SDL_JOYSTICK_POWER_MEDIUM;
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} else {
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joystick->epowerlevel = SDL_JOYSTICK_POWER_FULL;
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}
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}
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static SDL_bool
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HIDAPI_DriverXbox360W_InitDevice(SDL_HIDAPI_Device *device)
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{
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SDL_DriverXbox360W_Context *ctx;
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/* Requests controller presence information from the wireless dongle */
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const Uint8 init_packet[] = { 0x08, 0x00, 0x0F, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
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ctx = (SDL_DriverXbox360W_Context *)SDL_calloc(1, sizeof(*ctx));
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if (!ctx) {
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SDL_OutOfMemory();
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return SDL_FALSE;
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}
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device->dev = SDL_hid_open_path(device->path, 0);
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if (!device->dev) {
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SDL_free(ctx);
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SDL_SetError("Couldn't open %s", device->path);
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return SDL_FALSE;
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}
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device->context = ctx;
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if (SDL_hid_write(device->dev, init_packet, sizeof(init_packet)) != sizeof(init_packet)) {
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SDL_SetError("Couldn't write init packet");
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return SDL_FALSE;
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}
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return SDL_TRUE;
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}
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static int
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HIDAPI_DriverXbox360W_GetDevicePlayerIndex(SDL_HIDAPI_Device *device, SDL_JoystickID instance_id)
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{
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return -1;
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}
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static void
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HIDAPI_DriverXbox360W_SetDevicePlayerIndex(SDL_HIDAPI_Device *device, SDL_JoystickID instance_id, int player_index)
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{
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if (!device->dev) {
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return;
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}
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if (player_index >= 0) {
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SetSlotLED(device->dev, (player_index % 4));
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}
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}
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static SDL_bool
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HIDAPI_DriverXbox360W_OpenJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick)
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{
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SDL_DriverXbox360W_Context *ctx = (SDL_DriverXbox360W_Context *)device->context;
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SDL_zeroa(ctx->last_state);
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/* Initialize the joystick capabilities */
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joystick->nbuttons = 15;
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joystick->naxes = SDL_CONTROLLER_AXIS_MAX;
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joystick->epowerlevel = SDL_JOYSTICK_POWER_UNKNOWN;
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return SDL_TRUE;
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}
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static int
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HIDAPI_DriverXbox360W_RumbleJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble)
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{
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Uint8 rumble_packet[] = { 0x00, 0x01, 0x0f, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
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rumble_packet[5] = (low_frequency_rumble >> 8);
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rumble_packet[6] = (high_frequency_rumble >> 8);
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if (SDL_HIDAPI_SendRumble(device, rumble_packet, sizeof(rumble_packet)) != sizeof(rumble_packet)) {
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return SDL_SetError("Couldn't send rumble packet");
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}
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return 0;
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}
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static int
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HIDAPI_DriverXbox360W_RumbleJoystickTriggers(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint16 left_rumble, Uint16 right_rumble)
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{
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return SDL_Unsupported();
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}
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static SDL_bool
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HIDAPI_DriverXbox360W_HasJoystickLED(SDL_HIDAPI_Device *device, SDL_Joystick *joystick)
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{
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/* Doesn't have an RGB LED, so don't return true here */
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return SDL_FALSE;
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}
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static int
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HIDAPI_DriverXbox360W_SetJoystickLED(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint8 red, Uint8 green, Uint8 blue)
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{
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return SDL_Unsupported();
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}
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static int
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HIDAPI_DriverXbox360W_SendJoystickEffect(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, const void *data, int size)
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{
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return SDL_Unsupported();
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}
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static int
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HIDAPI_DriverXbox360W_SetJoystickSensorsEnabled(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, SDL_bool enabled)
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{
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return SDL_Unsupported();
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}
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static void
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HIDAPI_DriverXbox360W_HandleStatePacket(SDL_Joystick *joystick, SDL_hid_device *dev, SDL_DriverXbox360W_Context *ctx, Uint8 *data, int size)
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{
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Sint16 axis;
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const SDL_bool invert_y_axes = SDL_TRUE;
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if (ctx->last_state[2] != data[2]) {
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SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_DPAD_UP, (data[2] & 0x01) ? SDL_PRESSED : SDL_RELEASED);
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SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_DPAD_DOWN, (data[2] & 0x02) ? SDL_PRESSED : SDL_RELEASED);
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SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_DPAD_LEFT, (data[2] & 0x04) ? SDL_PRESSED : SDL_RELEASED);
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SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_DPAD_RIGHT, (data[2] & 0x08) ? SDL_PRESSED : SDL_RELEASED);
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SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_START, (data[2] & 0x10) ? SDL_PRESSED : SDL_RELEASED);
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SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_BACK, (data[2] & 0x20) ? SDL_PRESSED : SDL_RELEASED);
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SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_LEFTSTICK, (data[2] & 0x40) ? SDL_PRESSED : SDL_RELEASED);
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SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_RIGHTSTICK, (data[2] & 0x80) ? SDL_PRESSED : SDL_RELEASED);
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}
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if (ctx->last_state[3] != data[3]) {
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SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_LEFTSHOULDER, (data[3] & 0x01) ? SDL_PRESSED : SDL_RELEASED);
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SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER, (data[3] & 0x02) ? SDL_PRESSED : SDL_RELEASED);
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SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_GUIDE, (data[3] & 0x04) ? SDL_PRESSED : SDL_RELEASED);
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SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_A, (data[3] & 0x10) ? SDL_PRESSED : SDL_RELEASED);
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SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_B, (data[3] & 0x20) ? SDL_PRESSED : SDL_RELEASED);
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SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_X, (data[3] & 0x40) ? SDL_PRESSED : SDL_RELEASED);
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SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_Y, (data[3] & 0x80) ? SDL_PRESSED : SDL_RELEASED);
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}
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axis = ((int)data[4] * 257) - 32768;
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SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_TRIGGERLEFT, axis);
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axis = ((int)data[5] * 257) - 32768;
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SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_TRIGGERRIGHT, axis);
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axis = *(Sint16*)(&data[6]);
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SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_LEFTX, axis);
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axis = *(Sint16*)(&data[8]);
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if (invert_y_axes) {
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axis = ~axis;
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}
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SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_LEFTY, axis);
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axis = *(Sint16*)(&data[10]);
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SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_RIGHTX, axis);
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axis = *(Sint16*)(&data[12]);
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if (invert_y_axes) {
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axis = ~axis;
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}
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SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_RIGHTY, axis);
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SDL_memcpy(ctx->last_state, data, SDL_min(size, sizeof(ctx->last_state)));
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}
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static SDL_bool
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HIDAPI_DriverXbox360W_UpdateDevice(SDL_HIDAPI_Device *device)
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{
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SDL_DriverXbox360W_Context *ctx = (SDL_DriverXbox360W_Context *)device->context;
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SDL_Joystick *joystick = NULL;
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Uint8 data[USB_PACKET_LENGTH];
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int size;
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if (device->num_joysticks > 0) {
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joystick = SDL_JoystickFromInstanceID(device->joysticks[0]);
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}
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while ((size = SDL_hid_read_timeout(device->dev, data, sizeof(data), 0)) > 0) {
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#ifdef DEBUG_XBOX_PROTOCOL
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HIDAPI_DumpPacket("Xbox 360 wireless packet: size = %d", data, size);
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#endif
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if (size == 2 && data[0] == 0x08) {
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SDL_bool connected = (data[1] & 0x80) ? SDL_TRUE : SDL_FALSE;
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#ifdef DEBUG_JOYSTICK
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SDL_Log("Connected = %s\n", connected ? "TRUE" : "FALSE");
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#endif
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if (connected != ctx->connected) {
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ctx->connected = connected;
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if (connected) {
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SDL_JoystickID joystickID;
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HIDAPI_JoystickConnected(device, &joystickID);
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} else if (device->num_joysticks > 0) {
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HIDAPI_JoystickDisconnected(device, device->joysticks[0]);
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}
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}
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} else if (size == 29 && data[0] == 0x00 && data[1] == 0x0f && data[2] == 0x00 && data[3] == 0xf0) {
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/* Serial number is data[7-13] */
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#ifdef DEBUG_JOYSTICK
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SDL_Log("Battery status (initial): %d\n", data[17]);
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#endif
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if (joystick) {
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UpdatePowerLevel(joystick, data[17]);
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}
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} else if (size == 29 && data[0] == 0x00 && data[1] == 0x00 && data[2] == 0x00 && data[3] == 0x13) {
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#ifdef DEBUG_JOYSTICK
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SDL_Log("Battery status: %d\n", data[4]);
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#endif
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if (joystick) {
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UpdatePowerLevel(joystick, data[4]);
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}
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} else if (size == 29 && data[0] == 0x00 && (data[1] & 0x01) == 0x01) {
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if (joystick) {
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HIDAPI_DriverXbox360W_HandleStatePacket(joystick, device->dev, ctx, data+4, size-4);
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}
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}
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}
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if (joystick) {
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if (size < 0) {
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/* Read error, device is disconnected */
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HIDAPI_JoystickDisconnected(device, joystick->instance_id);
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}
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}
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return (size >= 0);
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}
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static void
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HIDAPI_DriverXbox360W_CloseJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick)
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{
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}
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static void
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HIDAPI_DriverXbox360W_FreeDevice(SDL_HIDAPI_Device *device)
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{
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SDL_LockMutex(device->dev_lock);
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{
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SDL_hid_close(device->dev);
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device->dev = NULL;
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SDL_free(device->context);
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device->context = NULL;
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}
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SDL_UnlockMutex(device->dev_lock);
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}
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SDL_HIDAPI_DeviceDriver SDL_HIDAPI_DriverXbox360W =
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{
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SDL_HINT_JOYSTICK_HIDAPI_XBOX,
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SDL_TRUE,
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HIDAPI_DriverXbox360W_IsSupportedDevice,
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HIDAPI_DriverXbox360W_GetDeviceName,
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HIDAPI_DriverXbox360W_InitDevice,
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HIDAPI_DriverXbox360W_GetDevicePlayerIndex,
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HIDAPI_DriverXbox360W_SetDevicePlayerIndex,
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HIDAPI_DriverXbox360W_UpdateDevice,
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HIDAPI_DriverXbox360W_OpenJoystick,
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HIDAPI_DriverXbox360W_RumbleJoystick,
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HIDAPI_DriverXbox360W_RumbleJoystickTriggers,
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HIDAPI_DriverXbox360W_HasJoystickLED,
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HIDAPI_DriverXbox360W_SetJoystickLED,
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HIDAPI_DriverXbox360W_SendJoystickEffect,
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HIDAPI_DriverXbox360W_SetJoystickSensorsEnabled,
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HIDAPI_DriverXbox360W_CloseJoystick,
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HIDAPI_DriverXbox360W_FreeDevice,
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};
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#endif /* SDL_JOYSTICK_HIDAPI_XBOX360 */
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#endif /* SDL_JOYSTICK_HIDAPI */
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/* vi: set ts=4 sw=4 expandtab: */
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