MissionControl/bluetooth-mitm/source/controllers/xiaomi_controller.cpp
2020-09-08 17:07:59 +02:00

103 lines
4.9 KiB
C++

/*
* Copyright (C) 2020 ndeadly
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that 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 "xiaomi_controller.hpp"
#include <stratosphere.hpp>
namespace ams::controller {
namespace {
constexpr uint8_t init_packet[] = {0x20, 0x00, 0x00}; // packet to init vibration apparently
const constexpr float stick_scale_factor = float(UINT12_MAX) / UINT8_MAX;
}
Result XiaomiController::Initialize(void) {
R_TRY(EmulatedSwitchController::Initialize());
s_output_report.size = sizeof(init_packet);
std::memcpy(s_output_report.data, init_packet, sizeof(init_packet));
R_TRY(bluetooth::hid::report::SendHidReport(&m_address, &s_output_report));
return ams::ResultSuccess();
}
void XiaomiController::ConvertReportFormat(const bluetooth::HidReport *in_report, bluetooth::HidReport *out_report) {
auto xiaomi_report = reinterpret_cast<const XiaomiReportData *>(&in_report->data);
auto switch_report = reinterpret_cast<SwitchReportData *>(&out_report->data);
switch(xiaomi_report->id) {
case 0x04:
this->HandleInputReport0x04(xiaomi_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 XiaomiController::HandleInputReport0x04(const XiaomiReportData *src, SwitchReportData *dst) {
m_battery = src->input0x04.battery / 52 << 1;
this->PackStickData(&dst->input0x30.left_stick,
static_cast<uint16_t>(stick_scale_factor * src->input0x04.left_stick.x) & 0xfff,
static_cast<uint16_t>(stick_scale_factor * (UINT8_MAX - src->input0x04.left_stick.y)) & 0xfff
);
this->PackStickData(&dst->input0x30.right_stick,
static_cast<uint16_t>(stick_scale_factor * src->input0x04.right_stick.x) & 0xfff,
static_cast<uint16_t>(stick_scale_factor * (UINT8_MAX - src->input0x04.right_stick.y)) & 0xfff
);
dst->input0x30.buttons.dpad_down = (src->input0x04.buttons.dpad == XiaomiDPad_S) ||
(src->input0x04.buttons.dpad == XiaomiDPad_SE) ||
(src->input0x04.buttons.dpad == XiaomiDPad_SW);
dst->input0x30.buttons.dpad_up = (src->input0x04.buttons.dpad == XiaomiDPad_N) ||
(src->input0x04.buttons.dpad == XiaomiDPad_NE) ||
(src->input0x04.buttons.dpad == XiaomiDPad_NW);
dst->input0x30.buttons.dpad_right = (src->input0x04.buttons.dpad == XiaomiDPad_E) ||
(src->input0x04.buttons.dpad == XiaomiDPad_NE) ||
(src->input0x04.buttons.dpad == XiaomiDPad_SE);
dst->input0x30.buttons.dpad_left = (src->input0x04.buttons.dpad == XiaomiDPad_W) ||
(src->input0x04.buttons.dpad == XiaomiDPad_NW) ||
(src->input0x04.buttons.dpad == XiaomiDPad_SW);
dst->input0x30.buttons.A = src->input0x04.buttons.B;
dst->input0x30.buttons.B = src->input0x04.buttons.A;
dst->input0x30.buttons.X = src->input0x04.buttons.Y;
dst->input0x30.buttons.Y = src->input0x04.buttons.X;
dst->input0x30.buttons.R = src->input0x04.buttons.R1;
dst->input0x30.buttons.ZR = src->input0x04.buttons.R2;
dst->input0x30.buttons.L = src->input0x04.buttons.L1;
dst->input0x30.buttons.ZL = src->input0x04.buttons.L2;
dst->input0x30.buttons.minus = src->input0x04.buttons.back;
dst->input0x30.buttons.plus = src->input0x04.buttons.menu;
dst->input0x30.buttons.lstick_press = src->input0x04.buttons.lstick_press;
dst->input0x30.buttons.rstick_press = src->input0x04.buttons.rstick_press;
dst->input0x30.buttons.capture = 0;
dst->input0x30.buttons.home = src->input0x04.home;
}
}