/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
                            proto.h
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
                                                    Forrest Yu, 2005
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/

/* klib.asm */
void	disp_str(char* info);
void	disp_int(int input);
void	disp_color_str(char* info, int color);
void write_char(char ch);    //added by mingxuan 2019-5-19

//added by zcr
void	disable_irq(int irq);
void	enable_irq(int irq);
void	init_8259A();
//~zcr

/* protect.c */
void	init_prot();
u32	seg2phys(u16 seg);

/* klib.c */
void	delay(int time);

/* kernel.asm */
u32  read_cr2();			//add by visual 2016.5.9
void refresh_page_cache();  //add by visual 2016.5.12
//void restart_int();
//void save_context();
void restart_initial();		//added by xw, 18/4/18
void restart_restore();		//added by xw, 18/4/20
void sched();				//added by xw, 18/4/18
void halt();                //added by xw, 18/6/11
u32 get_arg(void *uesp, int order);	//added by xw, 18/6/18

/* ktest.c */
void initial();

/* keyboard.c */
//added by mingxuan 2019-5-19
void init_kb();
void keyboard_read();

/* tty.c */
//added by mingxuan 2019-5-19
void in_process(TTY* p_tty,u32 key);
void task_tty();
void tty_write(TTY* tty, char* buf, int len);
int  tty_read(TTY* tty, char* buf, int len);

/* printf.c */
//added by mingxuan 2019-5-19
int     printf(const char *fmt, ...);

/* vsprintf.c */
//added by mingxuan 2019-5-19
int     vsprintf(char *buf, const char *fmt, va_list args);

/* i8259.c */
void put_irq_handler(int irq, irq_handler handler);
void spurious_irq(int irq);

/* clock.c */
void clock_handler(int irq);

/***************************************************************
* 以下是系统调用相关函数的声明	
****************************************************************/
/* syscall.asm */
void  sys_call();                /* int_handler */
int   get_ticks();
int   get_pid();					//add by visual 2016.4.6
void* kmalloc(int size);			//edit by visual 2016.5.9
void* kmalloc_4k();				//edit by visual 2016.5.9
void* malloc(int size);			//edit by visual 2016.5.9
void* malloc_4k();				//edit by visual 2016.5.9
int free(void *arg);				//edit by visual 2016.5.9
int free_4k(void* AdddrLin);		//edit by visual 2016.5.9
int fork();						//add by visual 2016.4.8
int pthread(void *arg);			//add by visual 2016.4.11
void udisp_int(int arg);		//add by visual 2016.5.16
void udisp_str(char* arg);	//add by visual 2016.5.16
u32 exec(char* path);		//add by visual 2016.5.16
void yield();				//added by xw, 18/4/19
void sleep(int n);			//added by xw, 18/4/19
void print_E();
void print_F();

/* syscallc.c */		//edit by visual 2016.4.6
int   sys_get_ticks();           /* sys_call */
int   sys_get_pid();				//add by visual 2016.4.6
void* sys_kmalloc(int size);			//edit by visual 2016.5.9
void* sys_kmalloc_4k();				//edit by visual 2016.5.9
void* sys_malloc(int size);			//edit by visual 2016.5.9
void* sys_malloc_4k();				//edit by visual 2016.5.9
int sys_free(void *arg);				//edit by visual 2016.5.9
int sys_free_4k(void* AdddrLin);		//edit by visual 2016.5.9
int sys_pthread(void *arg);		//add by visual 2016.4.11
void sys_udisp_int(int arg);		//add by visual 2016.5.16
void sys_udisp_str(char* arg);		//add by visual 2016.5.16

/* proc.c */
PROCESS* alloc_PCB();
void free_PCB(PROCESS *p);
void sys_yield();
void sys_sleep(int n);
void sys_wakeup(void *channel);
int ldt_seg_linear(PROCESS *p, int idx);
void* va2la(int pid, void* va);

/* testfunc.c */
void sys_print_E();
void sys_print_F();

/*exec.c*/
u32 sys_exec(char* path);		//add by visual 2016.5.23
/*fork.c*/
int sys_fork();					//add by visual 2016.5.25

/***************************************************************
* 以上是系统调用相关函数的声明	
****************************************************************/

/*pagepte.c*/
u32 init_page_pte(u32 pid);	//edit by visual 2016.4.28
void page_fault_handler(u32 vec_no, u32 err_code, u32 eip, u32 cs, u32 eflags);//add by visual 2016.4.19
u32 get_pde_index(u32 AddrLin);//add by visual 2016.4.28
u32 get_pte_index(u32 AddrLin);
u32 get_pde_phy_addr(u32 pid);
u32 get_pte_phy_addr(u32 pid,u32 AddrLin);
u32 get_page_phy_addr(u32 pid,u32 AddrLin);//线性地址
u32 pte_exist(u32 PageTblAddrPhy,u32 AddrLin);
u32 phy_exist(u32 PageTblPhyAddr,u32 AddrLin);
void write_page_pde(u32 PageDirPhyAddr,u32	AddrLin,u32 TblPhyAddr,u32 Attribute);
void write_page_pte(	u32 TblPhyAddr,u32	AddrLin,u32 PhyAddr,u32 Attribute);
u32 vmalloc(u32 size);
int lin_mapping_phy(u32 AddrLin,u32 phy_addr,u32 pid,u32 pde_Attribute,u32 pte_Attribute);//edit by visual 2016.5.19
void clear_kernel_pagepte_low();		//add by visual 2016.5.12