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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "content/browser/gamepad/gamepad_standard_mappings.h"
      6 
      7 namespace content {
      8 
      9 namespace {
     10 
     11 void MapperLogitechDualAction(
     12     const blink::WebGamepad& input,
     13     blink::WebGamepad* mapped) {
     14   *mapped = input;
     15   mapped->buttons[kButtonPrimary] = input.buttons[1];
     16   mapped->buttons[kButtonSecondary] = input.buttons[2];
     17   mapped->buttons[kButtonTertiary] = input.buttons[0];
     18   mapped->axes[kAxisRightStickY] = input.axes[5];
     19   DpadFromAxis(mapped, input.axes[9]);
     20 
     21   mapped->buttonsLength = kNumButtons;
     22   mapped->axesLength = kNumAxes;
     23 }
     24 
     25 void Mapper2Axes8Keys(
     26     const blink::WebGamepad& input,
     27     blink::WebGamepad* mapped) {
     28   *mapped = input;
     29   mapped->buttons[kButtonPrimary] = input.buttons[2];
     30   mapped->buttons[kButtonSecondary] = input.buttons[1];
     31   mapped->buttons[kButtonTertiary] = input.buttons[3];
     32   mapped->buttons[kButtonQuaternary] = input.buttons[0];
     33   mapped->buttons[kButtonDpadUp] = AxisNegativeAsButton(input.axes[1]);
     34   mapped->buttons[kButtonDpadDown] = AxisPositiveAsButton(input.axes[1]);
     35   mapped->buttons[kButtonDpadLeft] = AxisNegativeAsButton(input.axes[0]);
     36   mapped->buttons[kButtonDpadRight] = AxisPositiveAsButton(input.axes[0]);
     37 
     38   // Missing buttons
     39   mapped->buttons[kButtonLeftTrigger] = blink::WebGamepadButton();
     40   mapped->buttons[kButtonRightTrigger] = blink::WebGamepadButton();
     41   mapped->buttons[kButtonLeftThumbstick] = blink::WebGamepadButton();
     42   mapped->buttons[kButtonRightThumbstick] = blink::WebGamepadButton();
     43   mapped->buttons[kButtonMeta] = blink::WebGamepadButton();
     44 
     45   mapped->buttonsLength = kNumButtons - 1;
     46   mapped->axesLength = 0;
     47 }
     48 
     49 void MapperDualshock4(
     50     const blink::WebGamepad& input,
     51     blink::WebGamepad* mapped) {
     52   enum Dualshock4Buttons {
     53     kTouchpadButton = kNumButtons,
     54     kNumDualshock4Buttons
     55   };
     56 
     57   *mapped = input;
     58   mapped->buttons[kButtonPrimary] = input.buttons[1];
     59   mapped->buttons[kButtonSecondary] = input.buttons[2];
     60   mapped->buttons[kButtonTertiary] = input.buttons[0];
     61   mapped->buttons[kButtonQuaternary] = input.buttons[3];
     62   mapped->buttons[kButtonLeftShoulder] = input.buttons[4];
     63   mapped->buttons[kButtonRightShoulder] = input.buttons[5];
     64   mapped->buttons[kButtonLeftTrigger] = AxisToButton(input.axes[3]);
     65   mapped->buttons[kButtonRightTrigger] = AxisToButton(input.axes[4]);
     66   mapped->buttons[kButtonBackSelect] = input.buttons[8];
     67   mapped->buttons[kButtonStart] = input.buttons[9];
     68   mapped->buttons[kButtonLeftThumbstick] = input.buttons[10];
     69   mapped->buttons[kButtonRightThumbstick] = input.buttons[11];
     70   mapped->buttons[kButtonMeta] = input.buttons[12];
     71   mapped->buttons[kTouchpadButton] = input.buttons[13];
     72   mapped->axes[kAxisRightStickY] = input.axes[5];
     73   DpadFromAxis(mapped, input.axes[9]);
     74 
     75   mapped->buttonsLength = kNumDualshock4Buttons;
     76   mapped->axesLength = kNumAxes;
     77 }
     78 
     79 void MapperOnLiveWireless(
     80     const blink::WebGamepad& input,
     81     blink::WebGamepad* mapped) {
     82   *mapped = input;
     83   mapped->buttons[kButtonPrimary] = input.buttons[0];
     84   mapped->buttons[kButtonSecondary] = input.buttons[1];
     85   mapped->buttons[kButtonTertiary] = input.buttons[3];
     86   mapped->buttons[kButtonQuaternary] = input.buttons[4];
     87   mapped->buttons[kButtonLeftShoulder] = input.buttons[6];
     88   mapped->buttons[kButtonRightShoulder] = input.buttons[7];
     89   mapped->buttons[kButtonLeftTrigger] = AxisToButton(input.axes[2]);
     90   mapped->buttons[kButtonRightTrigger] = AxisToButton(input.axes[5]);
     91   mapped->buttons[kButtonBackSelect] = input.buttons[10];
     92   mapped->buttons[kButtonStart] = input.buttons[11];
     93   mapped->buttons[kButtonLeftThumbstick] = input.buttons[13];
     94   mapped->buttons[kButtonRightThumbstick] = input.buttons[14];
     95   mapped->buttons[kButtonMeta] = input.buttons[12];
     96   mapped->axes[kAxisRightStickX] = input.axes[3];
     97   mapped->axes[kAxisRightStickY] = input.axes[4];
     98   DpadFromAxis(mapped, input.axes[9]);
     99 
    100   mapped->buttonsLength = kNumButtons;
    101   mapped->axesLength = kNumAxes;
    102 }
    103 
    104 void MapperADT1(
    105     const blink::WebGamepad& input,
    106     blink::WebGamepad* mapped) {
    107   *mapped = input;
    108   mapped->buttons[kButtonPrimary] = input.buttons[0];
    109   mapped->buttons[kButtonSecondary] = input.buttons[1];
    110   mapped->buttons[kButtonTertiary] = input.buttons[3];
    111   mapped->buttons[kButtonQuaternary] = input.buttons[4];
    112   mapped->buttons[kButtonLeftShoulder] = input.buttons[6];
    113   mapped->buttons[kButtonRightShoulder] = input.buttons[7];
    114   mapped->buttons[kButtonLeftTrigger] = AxisToButton(input.axes[4]);
    115   mapped->buttons[kButtonRightTrigger] = AxisToButton(input.axes[3]);
    116   mapped->buttons[kButtonBackSelect] = NullButton();
    117   mapped->buttons[kButtonStart] = NullButton();
    118   mapped->buttons[kButtonLeftThumbstick] = input.buttons[13];
    119   mapped->buttons[kButtonRightThumbstick] = input.buttons[14];
    120   mapped->buttons[kButtonMeta] = input.buttons[12];
    121   mapped->axes[kAxisRightStickY] = input.axes[5];
    122   DpadFromAxis(mapped, input.axes[9]);
    123 
    124   mapped->buttonsLength = kNumButtons;
    125   mapped->axesLength = kNumAxes;
    126 }
    127 
    128 struct MappingData {
    129   const char* const vendor_id;
    130   const char* const product_id;
    131   GamepadStandardMappingFunction function;
    132 } AvailableMappings[] = {
    133   // http://www.linux-usb.org/usb.ids
    134   { "046d", "c216", MapperLogitechDualAction }, // Logitech DualAction
    135   { "0079", "0011", Mapper2Axes8Keys },         // 2Axes 8Keys Game Pad
    136   { "054c", "05c4", MapperDualshock4 },         // Playstation Dualshock 4
    137   { "2378", "1008", MapperOnLiveWireless },     // OnLive Controller (Bluetooth)
    138   { "2378", "100a", MapperOnLiveWireless },     // OnLive Controller (Wired)
    139   { "18d1", "2c40", MapperADT1 },               // ADT-1 Controller
    140 };
    141 
    142 }  // namespace
    143 
    144 GamepadStandardMappingFunction GetGamepadStandardMappingFunction(
    145     const base::StringPiece& vendor_id,
    146     const base::StringPiece& product_id) {
    147   for (size_t i = 0; i < arraysize(AvailableMappings); ++i) {
    148     MappingData& item = AvailableMappings[i];
    149     if (vendor_id == item.vendor_id && product_id == item.product_id)
    150       return item.function;
    151   }
    152   return NULL;
    153 }
    154 
    155 }  // namespace content
    156