371 lines
12 KiB
C
371 lines
12 KiB
C
/* vim: tabstop=4 shiftwidth=4 noexpandtab
|
|
*/
|
|
#ifndef __SYSTEM_H
|
|
#define __SYSTEM_H
|
|
#define _KERNEL_
|
|
#include <types.h>
|
|
#include <fs.h>
|
|
#include <va_list.h>
|
|
#include <list.h>
|
|
#include <task.h>
|
|
#include <process.h>
|
|
|
|
/* Binary Literals */
|
|
#define b(x) ((uint8_t)b_(0 ## x ## uL))
|
|
#define b_(x) ((x & 1) | (x >> 2 & 2) | (x >> 4 & 4) | (x >> 6 & 8) | (x >> 8 & 16) | (x >> 10 & 32) | (x >> 12 & 64) | (x >> 14 & 128))
|
|
|
|
/* Unimportant Kernel Strings */
|
|
#define KERNEL_UNAME "ToAruOS"
|
|
#define KERNEL_VERSION_STRING "0.0.1"
|
|
|
|
#define asm __asm__
|
|
#define volatile __volatile__
|
|
|
|
extern unsigned int __irq_sem;
|
|
|
|
#define IRQ_OFF { asm volatile ("cli"); }
|
|
#define IRQ_RES { asm volatile ("sti"); }
|
|
#define PAUSE { asm volatile ("hlt"); }
|
|
#define IRQS_ON_AND_PAUSE { asm volatile ("sti\nhlt\ncli"); }
|
|
|
|
#define STOP while (1) { PAUSE; }
|
|
|
|
#define SYSCALL_VECTOR 0x7F
|
|
|
|
extern void * code;
|
|
extern void * end;
|
|
|
|
|
|
extern void *sbrk(uintptr_t increment);
|
|
|
|
extern void tss_flush();
|
|
|
|
extern void spin_lock(uint8_t volatile * lock);
|
|
extern void spin_unlock(uint8_t volatile * lock);
|
|
|
|
/* Kernel Main */
|
|
extern int max(int,int);
|
|
extern int min(int,int);
|
|
extern int abs(int);
|
|
extern void swap(int *, int *);
|
|
extern void *memcpy(void *restrict dest, const void *restrict src, size_t count);
|
|
extern void *memmove(void *restrict dest, const void *restrict src, size_t count);
|
|
extern void *memset(void *dest, int val, size_t count);
|
|
extern unsigned short *memsetw(unsigned short *dest, unsigned short val, int count);
|
|
extern uint32_t strlen(const char *str);
|
|
extern int atoi(const char *str);
|
|
extern unsigned char inportb(unsigned short _port);
|
|
extern void outportb(unsigned short _port, unsigned char _data);
|
|
extern unsigned short inports(unsigned short _port);
|
|
extern void outports(unsigned short _port, unsigned short _data);
|
|
extern unsigned int inportl(unsigned short _port);
|
|
extern void outportl(unsigned short _port, unsigned int _data);
|
|
extern void outportsm(unsigned short port, unsigned char * data, unsigned long size);
|
|
extern void inportsm(unsigned short port, unsigned char * data, unsigned long size);
|
|
extern int strcmp(const char *a, const char *b);
|
|
extern char * strtok_r(char * str, const char * delim, char ** saveptr);
|
|
extern size_t lfind(const char * str, const char accept);
|
|
extern size_t rfind(const char * str, const char accept);
|
|
extern size_t strspn(const char * str, const char * accept);
|
|
extern char * strpbrk(const char * str, const char * accept);
|
|
extern uint32_t krand();
|
|
extern char * strstr(const char * haystack, const char * needle);
|
|
extern uint8_t startswith(const char * str, const char * accept);
|
|
|
|
/* VGA driver */
|
|
extern void cls();
|
|
extern void puts(char *str);
|
|
extern void settextcolor(unsigned char forecolor, unsigned char backcolor);
|
|
extern void resettextcolor();
|
|
extern void brighttextcolor();
|
|
extern void init_video();
|
|
extern void placech(unsigned char c, int x, int y, int attr);
|
|
extern void writechf(unsigned char c);
|
|
extern void writech(char c);
|
|
extern void place_csr(uint32_t x, uint32_t y);
|
|
extern void store_csr();
|
|
extern void restore_csr();
|
|
extern void set_serial(int);
|
|
extern void set_csr(int);
|
|
|
|
/* GDT */
|
|
extern void gdt_install();
|
|
extern void gdt_set_gate(int num, unsigned long base, unsigned long limit, unsigned char access,
|
|
unsigned char gran);
|
|
extern void set_kernel_stack(uintptr_t stack);
|
|
|
|
/* IDT */
|
|
extern void idt_install();
|
|
extern void idt_set_gate(unsigned char num, unsigned long base, unsigned short sel,
|
|
unsigned char flags);
|
|
|
|
/* Registers */
|
|
struct regs {
|
|
unsigned int gs, fs, es, ds;
|
|
unsigned int edi, esi, ebp, esp, ebx, edx, ecx, eax;
|
|
unsigned int int_no, err_code;
|
|
unsigned int eip, cs, eflags, useresp, ss;
|
|
};
|
|
|
|
typedef struct regs regs_t;
|
|
|
|
typedef void (*irq_handler_t) (struct regs *);
|
|
|
|
/* Panic */
|
|
#define HALT_AND_CATCH_FIRE(mesg, regs) halt_and_catch_fire(mesg, __FILE__, __LINE__, regs)
|
|
#define ASSERT(statement) ((statement) ? (void)0 : assert_failed(__FILE__, __LINE__, #statement))
|
|
#define assert(statement) ((statement) ? (void)0 : assert_failed(__FILE__, __LINE__, #statement))
|
|
void halt_and_catch_fire(char *error_message, const char *file, int line, struct regs * regs);
|
|
void assert_failed(const char *file, uint32_t line, const char *desc);
|
|
|
|
/* ISRS */
|
|
extern void isrs_install();
|
|
extern void isrs_install_handler(int isrs, irq_handler_t);
|
|
extern void isrs_uninstall_handler(int isrs);
|
|
|
|
/* Interrupt Handlers */
|
|
extern void irq_install();
|
|
extern void irq_install_handler(int irq, irq_handler_t);
|
|
extern void irq_uninstall_handler(int irq);
|
|
extern void irq_gates();
|
|
extern void irq_ack();
|
|
|
|
/* Timer */
|
|
extern void timer_install();
|
|
extern long timer_ticks;
|
|
extern void timer_wait(int ticks);
|
|
|
|
/* Keyboard */
|
|
typedef void (*keyboard_buffer_t)(char ch);
|
|
keyboard_buffer_t keyboard_buffer_handler;
|
|
keyboard_buffer_t keyboard_direct_handler;
|
|
extern void keyboard_install();
|
|
extern void keyboard_wait();
|
|
extern void putch(unsigned char c);
|
|
extern void set_kbd(int,int,int);
|
|
|
|
/* Mouse */
|
|
extern void mouse_install();
|
|
|
|
/* kprintf */
|
|
extern size_t vasprintf(char * buf, const char *fmt, va_list args);
|
|
extern int kprintf(const char *fmt, ...);
|
|
extern int sprintf(char *buf, const char *fmt, ...);
|
|
extern int kgets(char *buf, int size);
|
|
typedef void (*kgets_redraw_t)();
|
|
extern kgets_redraw_t kgets_redraw_func;
|
|
typedef void (*kgets_tab_complete_t)(char *);
|
|
extern kgets_tab_complete_t kgets_tab_complete_func;
|
|
extern void kgets_redraw_buffer();
|
|
typedef void (*kgets_special_t)(char *);
|
|
extern kgets_special_t kgets_key_down;
|
|
extern kgets_special_t kgets_key_up;
|
|
extern kgets_special_t kgets_key_left;
|
|
extern kgets_special_t kgets_key_right;
|
|
|
|
/* Memory Management */
|
|
extern uintptr_t placement_pointer;
|
|
extern void kmalloc_startat(uintptr_t address);
|
|
extern uintptr_t kmalloc_real(size_t size, int align, uintptr_t * phys);
|
|
extern uintptr_t kmalloc(size_t size);
|
|
extern uintptr_t kvmalloc(size_t size);
|
|
extern uintptr_t kmalloc_p(size_t size, uintptr_t * phys);
|
|
extern uintptr_t kvmalloc_p(size_t size, uintptr_t * phys);
|
|
|
|
// Page types moved to task.h
|
|
|
|
page_directory_t *kernel_directory;
|
|
page_directory_t *current_directory;
|
|
|
|
extern void paging_install(uint32_t memsize);
|
|
extern void switch_page_directory(page_directory_t * new);
|
|
extern page_t *get_page(uintptr_t address, int make, page_directory_t * dir);
|
|
extern void page_fault(struct regs *r);
|
|
extern void dma_frame(page_t * page, int, int, uintptr_t);
|
|
extern void debug_print_directory();
|
|
|
|
void heap_install();
|
|
|
|
void alloc_frame(page_t *page, int is_kernel, int is_writeable);
|
|
void free_frame(page_t *page);
|
|
uintptr_t memory_use();
|
|
uintptr_t memory_total();
|
|
|
|
/* klmalloc */
|
|
void * __attribute__ ((malloc)) malloc(size_t size);
|
|
void * __attribute__ ((malloc)) realloc(void *ptr, size_t size);
|
|
void * __attribute__ ((malloc)) calloc(size_t nmemb, size_t size);
|
|
void * __attribute__ ((malloc)) valloc(size_t size);
|
|
void free(void *ptr);
|
|
|
|
/* shell */
|
|
extern void start_shell();
|
|
|
|
/* Serial */
|
|
extern void serial_install();
|
|
extern char serial_recv();
|
|
extern void serial_send(char out);
|
|
extern void serial_string(char * out);
|
|
|
|
/* Tasks */
|
|
extern uintptr_t read_eip();
|
|
extern void copy_page_physical(uint32_t, uint32_t);
|
|
extern page_directory_t * clone_directory(page_directory_t * src);
|
|
extern page_table_t * clone_table(page_table_t * src, uintptr_t * physAddr);
|
|
extern void move_stack(void *new_stack_start, size_t size);
|
|
extern void kexit(int retval);
|
|
extern void task_exit(int retval);
|
|
extern uint32_t next_pid;
|
|
|
|
typedef struct tss_entry {
|
|
uint32_t prev_tss;
|
|
uint32_t esp0;
|
|
uint32_t ss0;
|
|
uint32_t esp1;
|
|
uint32_t ss1;
|
|
uint32_t esp2;
|
|
uint32_t ss2;
|
|
uint32_t cr3;
|
|
uint32_t eip;
|
|
uint32_t eflags;
|
|
uint32_t eax;
|
|
uint32_t ecx;
|
|
uint32_t edx;
|
|
uint32_t ebx;
|
|
uint32_t esp;
|
|
uint32_t ebp;
|
|
uint32_t esi;
|
|
uint32_t edi;
|
|
uint32_t es;
|
|
uint32_t cs;
|
|
uint32_t ss;
|
|
uint32_t ds;
|
|
uint32_t fs;
|
|
uint32_t gs;
|
|
uint32_t ldt;
|
|
uint16_t trap;
|
|
uint16_t iomap_base;
|
|
} __attribute__ ((packed)) tss_entry_t;
|
|
|
|
extern void tasking_install();
|
|
extern void switch_task(uint8_t reschedule);
|
|
extern void switch_from_cross_thread_lock();
|
|
extern void switch_next();
|
|
extern uint32_t fork();
|
|
extern uint32_t clone(uintptr_t new_stack, uintptr_t old_stack);
|
|
extern uint32_t getpid();
|
|
extern void enter_user_jmp(uintptr_t location, int argc, char ** argv, uintptr_t stack);
|
|
|
|
uintptr_t initial_esp;
|
|
|
|
/* Kernel Argument Parser */
|
|
extern void parse_args(char * argv);
|
|
|
|
/* CMOS */
|
|
extern void get_time(uint16_t * hours, uint16_t * minutes, uint16_t * seconds);
|
|
extern void get_date(uint16_t * month, uint16_t * day);
|
|
|
|
struct timeval {
|
|
uint32_t tv_sec;
|
|
uint32_t tv_usec;
|
|
};
|
|
|
|
extern int gettimeofday(struct timeval * t, void * z);
|
|
extern uint32_t now();
|
|
|
|
|
|
/* CPU Detect by Brynet */
|
|
extern int detect_cpu();
|
|
|
|
/* Video Drivers */
|
|
/* BOCHS / QEMU VBE Driver */
|
|
extern void graphics_install_bochs(uint16_t, uint16_t);
|
|
extern void graphics_install_vesa(uint16_t x, uint16_t y);
|
|
extern void bochs_set_csr(int x, int y);
|
|
extern int bochs_get_csr_x();
|
|
extern int bochs_get_csr_y();
|
|
extern void bochs_set_csr_on(uint8_t);
|
|
extern void bochs_set_bank(uint16_t bank);
|
|
extern void bochs_set_coord(uint16_t x, uint16_t y, uint32_t color);
|
|
extern void bochs_fill_rect(uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint32_t color);
|
|
extern void bochs_draw_logo(char *);
|
|
extern void bochs_scroll();
|
|
extern void bochs_write_char(uint8_t val, uint16_t x, uint16_t y, uint32_t fg, uint32_t bg);
|
|
extern uint16_t bochs_resolution_x;
|
|
extern uint16_t bochs_resolution_y;
|
|
extern uint16_t bochs_resolution_b;
|
|
extern uint32_t bochs_colors[];
|
|
extern void bochs_set_y_offset(uint16_t y);
|
|
extern uint16_t bochs_current_scroll();
|
|
/* Terminal functions */
|
|
extern void bochs_term_clear();
|
|
extern void bochs_write(char c);
|
|
extern void bochs_reset_colors();
|
|
extern void bochs_set_colors(uint8_t, uint8_t);
|
|
extern void bochs_draw_line(uint16_t,uint16_t,uint16_t,uint16_t,uint32_t);
|
|
extern int bochs_get_width();
|
|
extern int bochs_get_height();
|
|
extern void bochs_set_cell(int x, int y, char c);
|
|
extern uintptr_t bochs_get_address();
|
|
extern void bochs_redraw_cell(int x, int y);
|
|
extern void bochs_install_wallpaper();
|
|
extern void bochs_screenshot();
|
|
extern void bochs_redraw_cursor();
|
|
|
|
/* ANSI Terminal Escape Processor */
|
|
void ansi_put(char c);
|
|
void ansi_print(char * c);
|
|
void ansi_init(void (*writer)(char), int w, int y, void (*setcolor)(unsigned char, unsigned char), void (*setcsr)(int,int), int (*getcsrx)(void), int (*getcsry)(void), void (*setcell)(int,int,char), void (*cls)(void), void (*redraw_csr)(void));
|
|
int ansi_ready;
|
|
void (*redraw_cursor)(void);
|
|
|
|
extern uint8_t number_font[][12];
|
|
|
|
/* Floating Point Unit */
|
|
|
|
void set_fpu_cw(const uint16_t);
|
|
void enable_fpu();
|
|
|
|
/* ELF */
|
|
int exec( char *, int, char **);
|
|
int system( char *, int, char **);
|
|
|
|
/* Sytem Calls */
|
|
void syscalls_install();
|
|
|
|
/* PCI */
|
|
uint16_t pci_read_word(uint32_t bus, uint32_t slot, uint32_t func, uint16_t offset);
|
|
void pci_write_word(uint32_t bus, uint32_t slot, uint32_t func, uint16_t offset, uint32_t data);
|
|
|
|
/* IDE / PATA */
|
|
void ide_read_sector(uint16_t bus, uint8_t slave, uint32_t lba, uint8_t * buf);
|
|
void ide_write_sector(uint16_t bus, uint8_t slave, uint32_t lba, uint8_t * buf);
|
|
|
|
/* vm86 Helpers */
|
|
typedef uint32_t FARPTR;
|
|
typedef uintptr_t addr_t;
|
|
#define MK_FP(seg, off) ((FARPTR) (((uint32_t) (seg) << 16) | (uint16_t) (off)))
|
|
#define FP_SEG(fp) (((FARPTR) fp) >> 16)
|
|
#define FP_OFF(fp) (((FARPTR) fp) & 0xffff)
|
|
#define FP_TO_LINEAR(seg, off) ((void*) ((((uint16_t) (seg)) << 4) + ((uint16_t) (off))))
|
|
#define LINEAR_TO_FP(ptr) (MK_FP(((addr_t) (ptr) - ((addr_t) (ptr) & 0xf)) / 16, ((addr_t)(ptr) & 0xf)))
|
|
|
|
typedef struct {
|
|
uint16_t off;
|
|
uint16_t seg;
|
|
} rm_ptr_t;
|
|
|
|
/* wakeup queue */
|
|
int wakeup_queue(list_t * queue);
|
|
int sleep_on(list_t * queue);
|
|
|
|
typedef struct {
|
|
uint32_t signum;
|
|
uintptr_t handler;
|
|
regs_t registers_before;
|
|
} signal_t;
|
|
|
|
void handle_signal(process_t *, signal_t *);
|
|
|
|
#endif
|