MissionControl/bluetooth-mitm/source/controllers/wii_controller.cpp
2020-09-12 01:29:46 +02:00

354 lines
15 KiB
C++

/*
* Copyright (c) 2020 ndeadly
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "wii_controller.hpp"
#include <switch.h>
#include <stratosphere.hpp>
#include <algorithm>
#include <cstring>
namespace ams::controller {
namespace {
constexpr uint8_t init_data1[] = {0x55};
constexpr uint8_t init_data2[] = {0x00};
constexpr float nunchuck_stick_scale_factor = float(UINT12_MAX) / 0xb8;
constexpr float left_stick_scale_factor = float(UINT12_MAX) / 0x3f;
constexpr float right_stick_scale_factor = float(UINT12_MAX) / 0x1f;
}
Result WiiController::Initialize(void) {
R_TRY(this->SetReportMode(0x31));
return this->QueryStatus();
}
void WiiController::ConvertReportFormat(const bluetooth::HidReport *in_report, bluetooth::HidReport *out_report) {
auto wii_report = reinterpret_cast<const WiiReportData *>(&in_report->data);
auto switch_report = reinterpret_cast<SwitchReportData *>(&out_report->data);
switch(wii_report->id) {
case 0x20: // status
this->HandleInputReport0x20(wii_report, switch_report);
break;
case 0x21: // memory read
this->HandleInputReport0x21(wii_report, switch_report);
break;
case 0x22: // ack
this->HandleInputReport0x22(wii_report, switch_report);
break;
case 0x30:
this->HandleInputReport0x30(wii_report, switch_report);
break;
case 0x31:
this->HandleInputReport0x31(wii_report, switch_report);
break;
case 0x32:
this->HandleInputReport0x32(wii_report, switch_report);
break;
case 0x34:
this->HandleInputReport0x34(wii_report, switch_report);
break;
default:
break;
}
out_report->size = sizeof(SwitchInputReport0x30) + 1;
switch_report->id = 0x30;
switch_report->input0x30.conn_info = 0x0;
switch_report->input0x30.battery = m_battery | m_charging;
std::memset(switch_report->input0x30.motion, 0, sizeof(switch_report->input0x30.motion));
switch_report->input0x30.timer = os::ConvertToTimeSpan(os::GetSystemTick()).GetMilliSeconds() & 0xff;
}
void WiiController::HandleInputReport0x20(const WiiReportData *src, SwitchReportData *dst) {
if (!src->input0x20.extension_connected) {
m_extension = WiiExtensionController_None;
this->SetReportMode(0x31);
}
else if (src->input0x20.extension_connected && (m_extension == WiiExtensionController_None)) {
// Initialise extension
this->WriteMemory(0x04a400f0, init_data1, sizeof(init_data1));
this->WriteMemory(0x04a400fb, init_data2, sizeof(init_data2));
// Read extension type
this->ReadMemory(0x04a400fa, 6);
}
m_battery = (src->input0x20.battery / 52) << 1;
}
void WiiController::HandleInputReport0x21(const WiiReportData *src, SwitchReportData *dst) {
uint16_t read_addr = util::SwapBytes(src->input0x21.address);
//uint8_t size = src->input0x21.size + 1;
if (read_addr == 0x00fa) {
// Identify extension controller by ID
uint64_t extension_id = (util::SwapBytes(*reinterpret_cast<const uint64_t *>(&src->input0x21.data)) >> 16);
switch (extension_id) {
case 0x0000A4200000ULL:
case 0xFF00A4200000ULL:
m_extension = WiiExtensionController_Nunchuck;
this->SetReportMode(0x32);
break;
case 0x0000A4200101ULL:
m_extension = WiiExtensionController_Classic;
this->SetReportMode(0x32);
break;
case 0x0100A4200101ULL:
m_extension = WiiExtensionController_ClassicPro;
this->SetReportMode(0x32);
break;
case 0x0000a4200120ULL:
m_extension = WiiExtensionController_WiiUPro;
this->SetReportMode(0x34);
break;
default:
m_extension = WiiExtensionController_Unsupported;
this->SetReportMode(0x31);
break;
}
}
}
void WiiController::HandleInputReport0x22(const WiiReportData *src, SwitchReportData *dst) {
;
}
void WiiController::HandleInputReport0x30(const WiiReportData *src, SwitchReportData *dst) {
this->PackStickData(&dst->input0x30.left_stick, STICK_ZERO, STICK_ZERO);
this->PackStickData(&dst->input0x30.right_stick, STICK_ZERO, STICK_ZERO);
this->MapButtonsHorizontalOrientation(&src->input0x30.buttons, dst);
}
void WiiController::HandleInputReport0x31(const WiiReportData *src, SwitchReportData *dst) {
this->PackStickData(&dst->input0x30.left_stick, STICK_ZERO, STICK_ZERO);
this->PackStickData(&dst->input0x30.right_stick, STICK_ZERO, STICK_ZERO);
this->MapButtonsHorizontalOrientation(&src->input0x31.buttons, dst);
// Todo: Accelerometer data
}
void WiiController::HandleInputReport0x32(const WiiReportData *src, SwitchReportData *dst) {
if ((m_extension == WiiExtensionController_Nunchuck)
|| (m_extension == WiiExtensionController_Classic)
|| (m_extension == WiiExtensionController_ClassicPro)) {
this->MapButtonsVerticalOrientation(&src->input0x32.buttons, dst);
}
this->MapExtensionBytes(src->input0x32.extension, dst);
}
void WiiController::HandleInputReport0x34(const WiiReportData *src, SwitchReportData *dst) {
if ((m_extension == WiiExtensionController_Nunchuck)
|| (m_extension == WiiExtensionController_Classic)
|| (m_extension == WiiExtensionController_ClassicPro)) {
this->MapButtonsVerticalOrientation(&src->input0x34.buttons, dst);
}
this->MapExtensionBytes(src->input0x34.extension, dst);
}
void WiiController::MapButtonsHorizontalOrientation(const WiiButtonData *buttons, SwitchReportData *dst) {
dst->input0x30.buttons.dpad_down = buttons->dpad_left;
dst->input0x30.buttons.dpad_up = buttons->dpad_right;
dst->input0x30.buttons.dpad_right = buttons->dpad_down;
dst->input0x30.buttons.dpad_left = buttons->dpad_up;
dst->input0x30.buttons.A = buttons->two;
dst->input0x30.buttons.B = buttons->one;
dst->input0x30.buttons.R = buttons->A;
dst->input0x30.buttons.L = buttons->B;
dst->input0x30.buttons.minus = buttons->minus;
dst->input0x30.buttons.plus = buttons->plus;
dst->input0x30.buttons.home = buttons->home;
}
void WiiController::MapButtonsVerticalOrientation(const WiiButtonData *buttons, SwitchReportData *dst) {
dst->input0x30.buttons.dpad_down = buttons->dpad_down;
dst->input0x30.buttons.dpad_up = buttons->dpad_up;
dst->input0x30.buttons.dpad_right = buttons->dpad_right;
dst->input0x30.buttons.dpad_left = buttons->dpad_left;
dst->input0x30.buttons.A = buttons->A;
dst->input0x30.buttons.B = buttons->B;
// Not the best mapping but at least most buttons are mapped to something when nunchuck is connected.
dst->input0x30.buttons.R = buttons->one;
dst->input0x30.buttons.ZR = buttons->two;
dst->input0x30.buttons.minus = buttons->minus;
dst->input0x30.buttons.plus = buttons->plus;
dst->input0x30.buttons.home = buttons->home;
}
void WiiController::MapExtensionBytes(const uint8_t ext[], SwitchReportData *dst) {
switch(m_extension) {
case WiiExtensionController_Nunchuck:
this->MapNunchuckExtension(ext, dst);
break;
case WiiExtensionController_Classic:
case WiiExtensionController_ClassicPro:
this->MapClassicControllerExtension(ext, dst);
break;
case WiiExtensionController_WiiUPro:
this->MapWiiUProControllerExtension(ext, dst);
break;
default:
break;
}
}
void WiiController::MapNunchuckExtension(const uint8_t ext[], SwitchReportData *dst) {
auto extension = reinterpret_cast<const WiiNunchuckExtensionData *>(ext);
this->PackStickData(&dst->input0x30.left_stick,
std::clamp<uint16_t>(static_cast<uint16_t>(nunchuck_stick_scale_factor * (extension->stick_x - 0x80) + STICK_ZERO), 0, 0xfff),
std::clamp<uint16_t>(static_cast<uint16_t>(nunchuck_stick_scale_factor * (extension->stick_y - 0x80) + STICK_ZERO), 0, 0xfff)
);
dst->input0x30.buttons.L = !extension->C;
dst->input0x30.buttons.ZL = !extension->Z;
}
void WiiController::MapClassicControllerExtension(const uint8_t ext[], SwitchReportData *dst) {
this->PackStickData(&dst->input0x30.left_stick,
static_cast<uint16_t>(left_stick_scale_factor * ((ext[0] & 0x3f) - 0x20) + STICK_ZERO) & 0xfff,
static_cast<uint16_t>(left_stick_scale_factor * ((ext[1] & 0x3f) - 0x20) + STICK_ZERO) & 0xfff
);
this->PackStickData(&dst->input0x30.right_stick,
static_cast<uint16_t>(right_stick_scale_factor * ((((ext[0] >> 3) & 0x18) | ((ext[1] >> 5) & 0x06) | ((ext[2] >> 7) & 0x01)) - 0x10) + STICK_ZERO) & 0xfff,
static_cast<uint16_t>(right_stick_scale_factor * ((ext[2] & 0x1f) - 0x10) + STICK_ZERO) & 0xfff
);
auto buttons = reinterpret_cast<const WiiClassicControllerButtonData *>(&ext[4]);
dst->input0x30.buttons.dpad_down = !buttons->dpad_down;
dst->input0x30.buttons.dpad_up = !buttons->dpad_up;
dst->input0x30.buttons.dpad_right = !buttons->dpad_right;
dst->input0x30.buttons.dpad_left = !buttons->dpad_left;
dst->input0x30.buttons.A = !buttons->A;
dst->input0x30.buttons.B = !buttons->B;
dst->input0x30.buttons.X = !buttons->X;
dst->input0x30.buttons.Y = !buttons->Y;
dst->input0x30.buttons.L = !buttons->L;
dst->input0x30.buttons.ZL = !buttons->ZL;
dst->input0x30.buttons.R = !buttons->R;
dst->input0x30.buttons.ZR = !buttons->ZR;
dst->input0x30.buttons.minus = !buttons->minus;
dst->input0x30.buttons.plus = !buttons->plus;
dst->input0x30.buttons.home = !buttons->home;
}
void WiiController::MapWiiUProControllerExtension(const uint8_t ext[], SwitchReportData *dst) {
auto extension = reinterpret_cast<const WiiUProExtensionData *>(ext);
this->PackStickData(&dst->input0x30.left_stick,
((3 * (extension->left_stick_x - STICK_ZERO)) >> 1) + STICK_ZERO,
((3 * (extension->left_stick_y - STICK_ZERO)) >> 1) + STICK_ZERO
);
this->PackStickData(&dst->input0x30.right_stick,
((3 * (extension->right_stick_x - STICK_ZERO)) >> 1) + STICK_ZERO,
((3 * (extension->right_stick_y - STICK_ZERO)) >> 1) + STICK_ZERO
);
dst->input0x30.buttons.dpad_down = !extension->buttons.dpad_down;
dst->input0x30.buttons.dpad_up = !extension->buttons.dpad_up;
dst->input0x30.buttons.dpad_right = !extension->buttons.dpad_right;
dst->input0x30.buttons.dpad_left = !extension->buttons.dpad_left;
dst->input0x30.buttons.A = !extension->buttons.A;
dst->input0x30.buttons.B = !extension->buttons.B;
dst->input0x30.buttons.X = !extension->buttons.X;
dst->input0x30.buttons.Y = !extension->buttons.Y;
dst->input0x30.buttons.R = !extension->buttons.R;
dst->input0x30.buttons.ZR = !extension->buttons.ZR;
dst->input0x30.buttons.L = !extension->buttons.L;
dst->input0x30.buttons.ZL = !extension->buttons.ZL;
dst->input0x30.buttons.minus = !extension->buttons.minus;
dst->input0x30.buttons.plus = !extension->buttons.plus;
dst->input0x30.buttons.lstick_press = !extension->buttons.lstick_press;
dst->input0x30.buttons.rstick_press = !extension->buttons.rstick_press;
dst->input0x30.buttons.home = !extension->buttons.home;
}
Result WiiController::WriteMemory(uint32_t write_addr, const uint8_t *data, uint8_t size) {
s_output_report.size = sizeof(WiiOutputReport0x16) + 1;
auto report_data = reinterpret_cast<WiiReportData *>(s_output_report.data);
report_data->id = 0x16;
report_data->output0x16.address = ams::util::SwapBytes(write_addr);
report_data->output0x16.size = size;
std::memcpy(&report_data->output0x16.data, data, size);
return bluetooth::hid::report::SendHidReport(&m_address, &s_output_report);
}
Result WiiController::ReadMemory(uint32_t read_addr, uint16_t size) {
s_output_report.size = sizeof(WiiOutputReport0x17) + 1;
auto report_data = reinterpret_cast<WiiReportData *>(s_output_report.data);
report_data->id = 0x17;
report_data->output0x17.address = ams::util::SwapBytes(read_addr);
report_data->output0x17.size = ams::util::SwapBytes(size);
return bluetooth::hid::report::SendHidReport(&m_address, &s_output_report);
}
Result WiiController::SetReportMode(uint8_t mode) {
s_output_report.size = sizeof(WiiOutputReport0x12) + 1;
auto report_data = reinterpret_cast<WiiReportData *>(s_output_report.data);
report_data->id = 0x12;
report_data->output0x12._unk = 0;
report_data->output0x12.report_mode = mode;
return bluetooth::hid::report::SendHidReport(&m_address, &s_output_report);
}
Result WiiController::QueryStatus(void) {
s_output_report.size = sizeof(WiiOutputReport0x15) + 1;
auto report_data = reinterpret_cast<WiiReportData *>(s_output_report.data);
report_data->id = 0x15;
report_data->output0x15._unk = 0;
return bluetooth::hid::report::SendHidReport(&m_address, &s_output_report);
}
Result WiiController::SetPlayerLed(uint8_t led_mask) {
s_output_report.size = sizeof(WiiOutputReport0x15) + 1;
auto report_data = reinterpret_cast<WiiReportData *>(s_output_report.data);
report_data->id = 0x11;
report_data->output0x11.leds = (led_mask << 4) & 0xf0;;
return bluetooth::hid::report::SendHidReport(&m_address, &s_output_report);
}
}