mirror of
https://github.com/patchzyy/wiicompiled
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patchzyy
108 lines
4.1 KiB
C++
108 lines
4.1 KiB
C++
#pragma once
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// One emulated Wii Remote as seen from the controller: its baseband connection,
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// L2CAP channels (SDP, HID control, HID interrupt) and the HID transaction layer
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// that carries the physical remote's reports.
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#include "bluetooth/bt_controller.h"
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#include <cstddef>
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#include <cstdint>
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#include <vector>
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namespace Bluetooth {
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class RemoteLink {
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public:
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enum class Baseband : uint8_t {
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Idle,
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Requesting, // Connection Request sent, waiting for the guest to accept
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Paging, // the guest paged this remote (Create Connection)
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Connected,
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};
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RemoteLink(Controller& controller, size_t slot);
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// Drops every connection without telling the guest (controller reset/close).
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void Reset();
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void Tick(uint64_t nowUs);
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// Remote side wants a connection and should be offered to the guest's inquiry.
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bool Discoverable() const;
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bool ConnectWanted() const { return m_connectWanted; }
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// Guest accepted / rejected this remote's Connection Request.
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bool IsRequesting() const { return m_baseband == Baseband::Requesting; }
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void OnAccepted(uint8_t role);
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void OnRejected(uint8_t reason, uint64_t nowUs);
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// Guest paged this remote. Returns false when the remote cannot answer.
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bool OnPaged(uint64_t nowUs);
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// Baseband went down. `byGuest` = the guest's HCI Disconnect.
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void OnDisconnected(bool byGuest, uint64_t nowUs);
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// The physical remote vanished while connected: tells the guest.
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void DropFromRemote(uint8_t reason);
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void ReceiveL2cap(const uint8_t* frame, size_t size);
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Baseband BasebandState() const { return m_baseband; }
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LinkState State() const { return m_state; }
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private:
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struct Channel {
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uint16_t psm = 0;
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uint16_t localCid = 0;
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uint16_t remoteCid = 0;
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uint16_t remoteMtu = 672;
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bool weInitiated = false;
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bool connected = false; // connection response success seen/sent
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bool configSent = false; // our Configuration Request is out
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bool localConfigured = false; // the guest accepted our configuration
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bool remoteConfigured = false; // we accepted the guest's configuration
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uint8_t connectIdent = 0;
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uint8_t configIdent = 0;
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uint64_t requestUs = 0;
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std::vector<uint8_t> pendingOptions; // continued Configuration Request
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bool Open() const { return connected && localConfigured && remoteConfigured; }
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};
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Channel* FindByLocal(uint16_t cid);
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Channel* FindByPsm(uint16_t psm);
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uint16_t AllocateCid() const;
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uint8_t NextIdent();
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void SendSignal(uint8_t code, uint8_t ident, const std::vector<uint8_t>& data);
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void SendData(const Channel& channel, const std::vector<uint8_t>& payload);
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void RequestChannel(uint16_t psm, uint64_t nowUs);
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void SendConfigRequest(Channel& channel);
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void HandleSignalling(const uint8_t* data, size_t size);
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void HandleConnectionRequest(uint8_t ident, const uint8_t* p, size_t n);
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void HandleConnectionResponse(uint8_t ident, const uint8_t* p, size_t n);
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void HandleConfigurationRequest(uint8_t ident, const uint8_t* p, size_t n);
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void HandleConfigurationResponse(uint8_t ident, const uint8_t* p, size_t n);
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void HandleDisconnectionRequest(uint8_t ident, const uint8_t* p, size_t n);
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void HandleDisconnectionResponse(const uint8_t* p, size_t n);
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void HandleChannelData(Channel& channel, const uint8_t* data, size_t size);
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void HandleHidControl(Channel& channel, const uint8_t* data, size_t size);
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void UpdateState();
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void SetState(LinkState state);
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void ForwardInput();
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void SendInput(const Channel& interrupt, const std::vector<uint8_t>& report);
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void ClearConnection();
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Controller& m_controller;
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size_t m_slot;
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Baseband m_baseband = Baseband::Idle;
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LinkState m_state = LinkState::Down;
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bool m_connectWanted = false;
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bool m_guestInitiated = false;
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bool m_everReady = false;
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uint8_t m_ident = 0;
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uint64_t m_stateSinceUs = 0;
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uint64_t m_retryAtUs = 0;
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uint64_t m_nowUs = 0;
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std::vector<Channel> m_channels;
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std::vector<uint8_t> m_report;
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};
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} // namespace Bluetooth
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