forked from Bananymous/banan-os
113 lines
2.8 KiB
C++
113 lines
2.8 KiB
C++
#pragma once
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#include <BAN/Array.h>
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#include <kernel/Device/Device.h>
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#include <kernel/Lock/SpinLock.h>
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#include <kernel/Memory/ByteRingBuffer.h>
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#include <kernel/Terminal/TerminalDriver.h>
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#include <kernel/ThreadBlocker.h>
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#include <LibInput/KeyEvent.h>
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#include <termios.h>
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#include <sys/ioctl.h>
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namespace Kernel
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{
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#define TTY_DEFAULT_TERMIOS_CC { \
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[VEOF] = '\x04', /* ctrl+D */ \
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[VEOL] = '\0', \
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[VERASE] = '\b', \
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[VINTR] = '\x03', /* ctrl+C */ \
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[VKILL] = '\x15', /* ctrl+U */ \
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[VMIN] = 0, \
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[VQUIT] = '\x1c', /* ctrl+\ */ \
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[VSTART] = '\x11', /* ctrl+Q */ \
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[VSTOP] = '\x13', /* ctrl+S */ \
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[VSUSP] = '\x1a', /* ctrl+Z */ \
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[VTIME] = 0 \
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}
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class TTY : public CharacterDevice
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{
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public:
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virtual BAN::ErrorOr<void> set_font(LibFont::Font&&) { return BAN::Error::from_errno(EINVAL); }
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BAN::ErrorOr<void> tty_ctrl(int command, int flags);
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// for kprint
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static void putchar_current(uint8_t ch);
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static bool is_initialized();
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static BAN::RefPtr<TTY> current();
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void set_as_current();
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static void keyboard_task(void*);
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static void initialize_devices();
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bool should_receive_input() const { return m_tty_ctrl.receive_input; }
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void on_key_event(LibInput::RawKeyEvent);
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void on_key_event(LibInput::KeyEvent);
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void handle_input_byte(uint8_t);
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virtual void clear() = 0;
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virtual BAN::ErrorOr<void> chmod_impl(mode_t) override;
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virtual BAN::ErrorOr<void> chown_impl(uid_t, gid_t) override;
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virtual BAN::ErrorOr<long> ioctl_impl(int, void*) override;
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virtual bool can_read_impl() const override { return m_output.flush; }
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virtual bool has_error_impl() const override { return false; }
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virtual bool has_hungup_impl() const override { return false; }
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virtual bool master_has_closed() const { return false; }
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protected:
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TTY(termios termios, mode_t mode, uid_t uid, gid_t gid);
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virtual bool putchar_impl(uint8_t ch) = 0;
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virtual void after_write() {}
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virtual BAN::ErrorOr<size_t> read_impl(off_t, BAN::ByteSpan) final override;
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virtual BAN::ErrorOr<size_t> write_impl(off_t, BAN::ConstByteSpan) final override;
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void update_winsize(unsigned short cols, unsigned short rows);
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private:
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bool putchar(uint8_t ch);
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void do_backspace();
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termios get_termios();
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private:
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BAN::Atomic<pid_t> m_foreground_pgrp { 0 };
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struct tty_ctrl_t
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{
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BAN::Atomic<bool> draw_graphics { true };
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BAN::Atomic<bool> receive_input { true };
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};
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tty_ctrl_t m_tty_ctrl;
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struct Buffer
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{
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BAN::UniqPtr<ByteRingBuffer> buffer;
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BAN::Atomic<bool> flush { false };
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ThreadBlocker thread_blocker;
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};
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Buffer m_output;
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winsize m_winsize {};
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SpinLock m_termios_lock;
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termios m_termios;
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protected:
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Mutex m_mutex;
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RecursiveSpinLock m_write_lock;
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ThreadBlocker m_write_blocker;
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};
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}
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