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#ifndef TTY_H
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#define TTY_H
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#include <types.h>
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2023-12-13 02:24:25 +08:00
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#include <kernel/memm.h>
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typedef enum __tty_type
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{
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invalid,
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// 用于在内核刚刚被引导,只有bootloader提供的显示功能时使用
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tty_type_raw_framebuffer,
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// 用于图形功能初始化后,直接连接图形接口
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tty_type_display,
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// 用于图形终端的终端模拟器
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tty_type_vtty,
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} tty_type;
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typedef enum __framebuffer_pixel_type
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{
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rgb,
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bgr,
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} framebuffer_pixel_type;
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// 在不同的tty类型下,提供相应的使用显示功能的信息
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typedef union __tty_typeinfo
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{
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struct __framebuffer
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{
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void *pointer;
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usize width, height;
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framebuffer_pixel_type pixtype;
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u8 pixsize;
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} raw_framebuffer;
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} tty_typeinfo;
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typedef struct __framebuffer framebuffer;
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// tty模式
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// 分为文本模式和图形模式
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// 文本模式中的字符由tty模块渲染
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typedef enum __tty_mode
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{
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tty_mode_text,
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tty_mode_graphics,
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} tty_mode;
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typedef struct __tty_text_state
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{
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usize line, column;
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usize width, height;
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volatile u8 lock;
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} tty_text_state;
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// tty对象
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typedef struct __tty
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{
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usize id;
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tty_type type;
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tty_typeinfo typeinfo;
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tty_mode mode;
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tty_text_state text;
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allocator_t *allocator;
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} tty;
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// tty控制器
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typedef struct __tty_controller_t
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{
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#define TTY_MAX_NUM 128
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tty *ttys[TTY_MAX_NUM];
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bool map[TTY_MAX_NUM];
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} tty_controller_t;
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/**
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* @brief 初始化tty控制器
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*
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*/
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tty_controller_t *tty_controller_new();
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/**
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* @brief 创建tty
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*
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* @param __tty 若为nullptr,将使用kmalloc申请内存,需要手动释放
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* @param type
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* @return tty* 返回tty对象的地址,如果tty数量超过TTY_MAX_NUM返回nullptr,
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* 无论传入的__tty是否是nullptr
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*/
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tty *tty_new(tty_type type, tty_mode mode);
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/**
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* @brief 通过tty id获取一个tty
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*
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* @param id
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* @return tty** 二级指针方便判断这个tty是否删除,返回空指针表示当前没有这个tty
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*/
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tty **tty_get(usize id);
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/**
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* @brief 当type为raw_framebuffer时设置帧缓冲区
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*
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* @param ttyx
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* @param fb
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*/
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void tty_set_framebuffer(tty *ttyx, framebuffer *fb);
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/**
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* @brief 当mode为text时打印ascii文字
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*
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* @param ttyx
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* @param string
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*/
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void tty_text_print(tty *ttyx, char *string, u32 color, u32 bgcolor);
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#define gen_color(r, g, b) (((b) << 16) | ((g) << 8) | (r))
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#define TTY_FONT_SCALE 2
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extern u64 font[256][64];
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extern usize font_width, font_height;
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#endif
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