cos2000v2/lib/shell.c

216 lines
6.1 KiB
C
Raw Normal View History

#include "vga.h"
#include "video.h"
#include "interrupts.h"
#include "asm.h"
#include "cpu.h"
#include "string.h"
#include "2d.h"
#include "gdt.h"
#include "shell.h"
static command commands[] = {
{"REBOOT","",&rebootnow},
{"CLEAR","",&clear},
{"MODE","",&mode},
{"DETECTCPU","",&detectcpu},
{"TEST2D","",&test2d},
{"REGS","",&dump_regs},
{"GDT","",&readgdt},
{"IDT","",&readidt},
};
/*******************************************************************************/
/* Shell, traite les commandes */
void shell() {
static u8 field[]=" \000";
static u8 item[]=" \000";
int i;
bool found;
while (true) {
print("\r\n# ");
getstring(&field);
print("\r\n");
if (strgetnbitems(&field,' ')<1) continue;
strgetitem(&field, &item, ' ', 0);
strtoupper(&item);
found=false;
for(i=0;i<sizeof(commands);i++) {
if (strcmp(&item,&commands[i].name)==0) {
(*commands[i].function)();
found=true;
break;
}
}
if (!found) printf("Commande inconnue !\r\n\000");
}
}
/*******************************************************************************/
/* Affiche les registres */
int regs() {
dump_regs();
return 0;
}
/*******************************************************************************/
/* Change le mode */
int mode() {
setvmode(0x84);
return 0;
}
/*******************************************************************************/
/* Efface l'écran */
int clear() {
fill(0x00);
gotoscr(0,0);
return 0;
}
/*******************************************************************************/
/* Redemarre */
int rebootnow() {
print("<Appuyer sur une touche pour redemarrer>");
waitascii();
reboot();
return 0;
}
/*******************************************************************************/
/* Test les fonctionnalité 2D graphiques */
int test2d() {
setvmode(0x89);
fill(0x00);
struct vertex2d a,b,c;
randomize();
for(int i=0;i<3200;i++)
{
a.x=random(0, 800);
a.y=random(0, 600);
b.x=random(0, 800);
b.y=random(0, 600);
c.x=random(0, 800);
c.y=random(0, 600);
trianglefilled(&a,&b,&c,random(0, 16));
triangle(&a,&b,&c,2);
}
return 0;
}
/*******************************************************************************/
/* Lit l'IDT et l'affiche */
int readidt()
{
u32 index,i=0;
idtdes* desc;
struct idtr idtreg;
sidt(&idtreg);
printf("Information sur l'IDT\r\nAdresse:%X Limite:%hX",idtreg.base,(u32)idtreg.limite);
desc=idtreg.base;
for(index=0;index<idtreg.limite/sizeof(idtdes);index++)
{
u32 select=desc[index].select;
u32 offset=desc[index].offset0_15+(desc[index].offset16_31 << 16);
u32 type=desc[index].type;
printf("\r\nInterruption % d Selecteur %hX: offset:%X type:",i++,select,offset,type);
if (type==INTGATE) print("INTGATE");
else if (type==TRAPGATE) print("TRAPGATE");
else if (type==TASKGATE) print("TASKGATE");
else if (type==CALLGATE) print("CALLGATE");
else if (type==LDTDES) print("LDTDES");
else print("inconnu");
if (i%32==0) {
print("\r\n<Appuyez sur une touche>\r\n");
waitascii();
}
}
return 0;
}
/*******************************************************************************/
/* Lit les descripteurs GDT et les affiche */
int readgdt()
{
u32 index;
gdtdes* desc;
struct gdtr gdtreg;
sgdt(&gdtreg);
printf("Information sur la LGDT\r\nAdresse:%X Limite:%hX",gdtreg.base,(u32)gdtreg.limite);
desc=gdtreg.base;
for(index=0;index<gdtreg.limite/sizeof(gdtdes);index++)
{
u32 acces=desc[index].acces;
if (acces >> 7 == 1) {
u32 flags=desc[index].flags;
u32 limit=desc[index].lim0_15+(desc[index].lim16_19 << 16);
u32 base=desc[index].base0_15+(desc[index].base16_23 << 16)+(desc[index].base24_31 << 24) ;
printf("\r\nSelecteur %hX: base:%X limit:%X access:%hX flags:%hX\r\n -> ",index*sizeof(gdtdes),base,limit,acces,flags);
if ((acces >> 4) & 1 == 1)
print("Systeme ");
else {
if (acces & 1 == 1)
print("Acces ");
}
if ((acces >> 3) & 1 == 1) {
print("Code.");
if ((acces >> 1) & 1 == 1)
print("Readable ");
if ((acces >> 2) & 1 == 1)
print("Conforming ");
else
print("Normal ");
}
else {
print("Data.");
if ((acces >> 3) & 1 == 1)
print("Down ");
else
print("up ");
if ((acces >> 1) & 1 == 1)
print("writeable ");
}
if (flags & 1 == 1)
print("Dispo ");
if ((flags >> 2) & 1 == 1)
print("32 bits ");
else
print("16 bits ");
if ((flags >> 3) & 1 == 1)
print("4k ");
else
print("1b ");
u8 dpl=(acces>>5) & 0b11;
printf("DPL:%d",dpl);
}
}
return 0;
}
/*******************************************************************************/
/* Detecte et affiche les information sur le CPU */
int detectcpu()
{
cpuinfo cpu;
u8 noproc[] = "\033[31mInconnu\033[0m\000";
strcpy(&noproc, &cpu.detectedname);
getcpuinfos(&cpu);
printf("\r\nDetection du processeur\r\033[1m Revision \t:%d\r Modele \t:%d\r Famille \t:%d\r Nom cpuid\t:%s\rJeux d'instruction\t:%s\033[0m\r\n\000",cpu.stepping, cpu.models, cpu.family, &cpu.detectedname,&cpu.techs);
return 0;
}