ozone: evdev: Add gamepad support

ui/events/ozone/evdev/event_device_test_util.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/events/ozone/evdev/event_device_test_util.h"
 
 #include <stdint.h>
 
 #include "base/format_macros.h"
 #include "base/macros.h"
@@ skipping 61 matching lines @@
 
   // Require canonically formatted input.
   if (bitfield != SerializeBitfield(out->data(), max_bits))
     return false;
 
   return true;
 }
 
 }  // namespace
 
+// Caputered from xbox 360 gamepad.
+const DeviceAbsoluteAxis kLinkGamepadAbsAxes[] = {
+    {ABS_X, {0, -32768, 32767, 16, 128}},
+    {ABS_Y, {0, -32768, 32767, 16, 128}},
+    {ABS_Z, {0, 0, 255, 0, 0}},
+    {ABS_RX, {0, -32768, 32767, 16, 128}},
+    {ABS_RY, {0, -32768, 32767, 16, 128}},
+    {ABS_RZ, {0, 0, 255, 0, 0}},
+    {ABS_HAT0X, {0, -1, 1, 0, 0}},
+    {ABS_HAT0Y, {0, -1, 1, 0, 0}}};
+const DeviceCapabilities kLinkGamepad = {

[spang, 2017/04/13 00:52:19]

"Link" here is the board name for the Chromebook Pixel. Since this is a USB
peripheral and independent of a particular board, please don't say "link" here.
Name the peripheral whose capabilities are listed here:

kXboxController

[jkwang, 2017/04/19 19:42:23]

Done.

+    /* path */
+    "/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.2/1-2.2:1.0/"
+    "input/input38/event11",
+    /* name */ "Microsoft X-Box 360 pad",
+    /* phys */ "usb-0000:00:14.0-2.2/input0",
+    /* uniq */ "",
+    /* bustype */ "0011",
+    /* vendor */ "045e",
+    /* product */ "028e",
+    /* version */ "0114",
+    /* prop */ "0",
+    /* ev */ "20000b",
+    /* key */ "7cdb000000000000 0 0 0 0",
+    /* rel */ "0",
+    /* abs */ "3003f",
+    /* msc */ "0",
+    /* sw */ "0",
+    /* led */ "0",
+    /* ff */ "0",
+    kLinkGamepadAbsAxes,
+    arraysize(kLinkGamepadAbsAxes),
+};
+
 // Captured from Chromebook Pixel.
 const DeviceCapabilities kLinkKeyboard = {
     /* path */ "/sys/devices/platform/i8042/serio0/input/input6/event6",
     /* name */ "AT Translated Set 2 keyboard",
     /* phys */ "isa0060/serio0/input0",
     /* uniq */ "",
     /* bustype */ "0011",
     /* vendor */ "0001",
     /* product */ "0001",
     /* version */ "ab83",
@@ skipping 403 matching lines @@
   }
 
   int bustype = 0;
   sscanf(capabilities.bustype, "%x", &bustype);
   devinfo->SetDeviceType(InputDeviceTypeFromBusType(bustype));
 
   return true;
 }
 
 }  // namespace ui