Initial

.clang-format

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+---
+BasedOnStyle: Webkit
+---
+Language:                               Cpp
+PointerAlignment:                       Right
+BreakBeforeBraces:                      Allman
+AllowShortBlocksOnASingleLine:          false
+AllowShortFunctionsOnASingleLine:       Empty
+Cpp11BracedListStyle:                   true
+Standard:                               Cpp11
+ColumnLimit:                            120
+IndentWidth:                            2
+AccessModifierOffset:                   -2
+FixNamespaceComments:                   true
+NamespaceIndentation:                   None
+IncludeBlocks:                          Regroup
+IndentCaseLabels:                       true
+MaxEmptyLinesToKeep:                    1
+UseTab:                                 Never
+AlignAfterOpenBracket:                  Align
+AlignConsecutiveAssignments:            true
+AlignOperands:                          true
+AlignTrailingComments:                  true
+AllowShortCaseLabelsOnASingleLine:      false
+AllowShortIfStatementsOnASingleLine:    false
+AllowShortLoopsOnASingleLine:           false
+CommentPragmas: '^ NOLINT'
+---

.gitignore

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+/build

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.2)
+
+if(NOT DEFINED CMAKE_TOOLCHAIN_FILE)
+  if(DEFINED ENV{VITASDK})
+    set(CMAKE_TOOLCHAIN_FILE "$ENV{VITASDK}/share/vita.toolchain.cmake" CACHE PATH "toolchain file")
+  else()
+    message(FATAL_ERROR "Please define VITASDK to point to your SDK path!")
+  endif()
+endif()
+
+project(vixen)
+include("${VITASDK}/share/vita.cmake" REQUIRED)
+
+add_executable(${PROJECT_NAME}
+  src/main.c
+  src/unpack.c
+  src/devicelist.c
+  src/controller.c
+  src/controllers/xbox_360_controller.c
+  src/controllers/xbox_360w_controller.c
+)
+
+target_link_libraries(${PROJECT_NAME}
+  SceDebugForDriver_stub
+  SceSblAIMgrForDriver_stub
+  SceCtrlForDriver_stub
+  SceKernelSuspendForDriver_stub
+  SceSysclibForDriver_stub
+  SceSysmemForDriver_stub
+  SceThreadmgrForDriver_stub
+  SceUsbdForDriver_stub
+  SceUsbServForDriver_stub
+  taihenForKernel_stub
+)
+
+set_target_properties(${PROJECT_NAME}
+  PROPERTIES LINK_FLAGS "-nostdlib"
+)
+
+vita_create_self(${PROJECT_NAME}.skprx ${PROJECT_NAME}
+  CONFIG vixen.yml
+  UNSAFE
+)

LICENSE.md

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+Copyright 2022 Cat (Epifanov Ivan)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

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+# ViXEn - **Vi**ta **X**-input **En**abler
+
+PSVita kernel driver for x-input gamepads (e.g. xbox360)
+
+## Features
+
+* Support for up to 4 wired usb x-input devices.
+* Support for up to 4 wireless Xbox 360 gamepads via 1 wired usb receiver.
+* Auto turn-off wireless controllers on suspend.
+
+Note: xbox 360 wireless receiver takes over all 4 gamepad ports, so you can't use wired and wireless gamepads simultaniously.
+
+For full list of supported devices see [here](src/devicelist.c)
+
+## Installing
+* Add vixen.skprx under `*KERNEL` in tai config and reboot.
+* For vita you need usb Y-cable and external power. See [this](https://github.com/isage/vita-usb-ether#hardware) for example.
+
+## Building
+
+* Install vitausb from https://github.com/isage/vita-packages-extra
+* `mkdir build && cmake -DCMAKE_BUILD_TYPE=Release .. && make install`
+
+## License
+
+MIT, see LICENSE.md
+
+## Credits
+
+* [xboxdrv](https://github.com/xboxdrv/xboxdrv) - for vid/pid pairs and protocol description
+* [xerpi](https://github.com/xerpi) - for ds3vita
+* **CBPS discord** - for support and stupid ideas
+* **rem** - for being lazy/buzy to do the same :P

src/controller.c

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+#include "controller.h"
+
+#include "controllers/xbox_360_controller.h"
+#include "controllers/xbox_360w_controller.h"
+
+#include <psp2kern/kernel/suspend.h>
+#include <psp2kern/kernel/threadmgr.h>
+#include <psp2kern/usbd.h>
+
+void on_read_data(int32_t result, int32_t count, void *arg)
+{
+  // process buffer
+  Controller *c = (Controller *)arg;
+  if (result == 0 && count > 0 && arg)
+  {
+    if (c->inited)
+    {
+      if (c->type == PAD_XBOX360)
+      {
+        if (Xbox360Controller_processReport(c, count))
+          ksceKernelPowerTick(0); // cancel sleep timers.
+      }
+      else
+      {
+        if (Xbox360WController_processReport(c, count))
+          ksceKernelPowerTick(0); // cancel sleep timers.
+      }
+    }
+  }
+
+  usb_read(c);
+}
+
+void on_write_data(int32_t result, int32_t count, void *arg)
+{
+  //    ksceDebugPrintf("write status: %d %d\n", result, count);
+  // check status
+  // do nothing?
+}
+
+void usb_read(Controller *c)
+{
+  int ret;
+
+  if (!c->inited)
+    return;
+
+  ret = ksceUsbdInterruptTransfer(c->pipe_in, c->buffer, c->buffer_size, on_read_data, c);
+
+  if (ret < 0)
+  {
+    ksceDebugPrintf("ksceUsbdInterruptTransfer(in) error: 0x%08x\n", ret);
+    // error out
+  }
+}
+
+void usb_write(Controller *c, uint8_t *data, int len)
+{
+  int ret;
+  ret = ksceUsbdInterruptTransfer(c->pipe_out, data, len, on_write_data, c);
+
+  if (ret < 0)
+  {
+    ksceDebugPrintf("ksceUsbdInterruptTransfer(out) error: 0x%08x\n", ret);
+    // error out
+  }
+}

src/controller.h

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+#ifndef __CONTROLLER_H__
+#define __CONTROLLER_H__
+
+#include "devicelist.h"
+
+#include <psp2common/types.h>
+#include <psp2kern/usbd.h>
+#include <psp2kern/kernel/debug.h>
+#include <stdint.h>
+
+typedef struct
+{
+  uint32_t buttons;
+  uint8_t leftX;
+  uint8_t leftY;
+  uint8_t rightX;
+  uint8_t rightY;
+  uint8_t lt;
+  uint8_t rt;
+} ControlData;
+
+typedef struct
+{
+  uint8_t type;
+  uint8_t attached; // actual gamepad attached
+  uint8_t inited;   // usb device attached and inited
+  uint8_t battery_level;
+  ControlData controlData;
+  int device_id;
+  uint8_t port;
+  SceUID pipe_in;
+  SceUID pipe_out;
+  unsigned char buffer[32] __attribute__((aligned(64)));
+  size_t buffer_size;
+
+} Controller;
+
+void usb_read(Controller *c);
+void usb_write(Controller *c, uint8_t *data, int len);
+
+#endif // __CONTROLLER_H__