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Import backup from 2004-08-17

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This commit is contained in:
Josh Holtrop 2004-08-17 22:00:00 -04:00
parent c0dd3b529e
commit 1bf14ddefa
8 changed files with 81 additions and 66 deletions
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2
.bochsrc
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@ -25,7 +25,7 @@ text_snapshot_check: 0
mouse: enabled=0
private_colormap: enabled=0
i440fxsupport: enabled=0
clock: sync=none, time0=local
clock: sync=realtime, time0=local
# no ne2k
newharddrivesupport: enabled=1
# no loader

2
kernel/Makefile
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@ -9,7 +9,7 @@ NASM_FLAGS=-f aout
# C Information:
CC=gcc
CC_FLAGS=-fleading-underscore -fno-builtin -nostdlib -nostartfiles -nodefaultlibs -I. -I../include -Wall
CC_FLAGS=-fleading-underscore -fno-builtin -nostdlib -nostartfiles -nodefaultlibs -I. -Wall
# Linker Information:
LD=ld

2
kernel/boot.asm
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@ -157,7 +157,7 @@ newgdtcontinue:
call _k_init ;C kernel initialization
idle_loop:
; sti
sti
hlt
jmp idle_loop

59
kernel/char/vconsole.c
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@ -9,10 +9,13 @@
#include "mm/vmm.h"
#include "lang/asmfuncs.h"
#include "console.h"
#include "functions.h"
vconsole_t *vconsoles[VCONSOLE_MAX]; // pointer to virtual console structs
extern int activeConsole; // console subsystem active virtual console number
char ansi2vgaAttr[8] = {0, 4, 2, 6, 1, 5, 3, 7};
void vconsole_put_char(minor_t id, int c);
void vconsole_update_cursor(minor_t id, u16_t position);
void vconsole_update_attribute(minor_t id);
@ -75,6 +78,7 @@ int vconsole_char_write(minor_t id, int c)
return -1;
int cursorY = vconsoles[id]->cursorPosition / vconsoles[id]->width;
int cursorX = vconsoles[id]->cursorPosition % vconsoles[id]->width;
int evalEscapePosition = 0;
switch (vconsoles[id]->escapeLevel)
{
case 2:
@ -96,29 +100,25 @@ int vconsole_char_write(minor_t id, int c)
cursorY -= vconsoles[id]->escapeValue[0];
if (cursorY < 0)
cursorY = 0;
vconsole_update_cursor(id, cursorY * vconsoles[id]->width +
cursorX);
vconsole_update_cursor(id, cursorY * vconsoles[id]->width + cursorX);
break;
case 'B': // move cursor down n rows
cursorY += vconsoles[id]->escapeValue[0];
if (cursorY >= vconsoles[id]->height)
cursorY = vconsoles[id]->height - 1;
vconsole_update_cursor(id, cursorY * vconsoles[id]->width +
cursorX);
vconsole_update_cursor(id, cursorY * vconsoles[id]->width + cursorX);
break;
case 'C': // move cursor right n columns
cursorX -= vconsoles[id]->escapeValue[0];
if (cursorX < 0)
cursorX = 0;
vconsole_update_cursor(id, cursorY * vconsoles[id]->width +
cursorX);
vconsole_update_cursor(id, cursorY * vconsoles[id]->width + cursorX);
break;
case 'D': // move cursor left n columns
cursorX += vconsoles[id]->escapeValue[0];
if (cursorX >= vconsoles[id]->width)
cursorX = vconsoles[id]->width - 1;
vconsole_update_cursor(id, cursorY * vconsoles[id]->width +
cursorX);
vconsole_update_cursor(id, cursorY * vconsoles[id]->width + cursorX);
break;
case 'H':
case 'f': // move cursor to position (x,y) upper left is (1,1)
@ -132,7 +132,7 @@ cursorX);
cursorX = 0;
if (cursorX >= vconsoles[id]->width)
cursorX = vconsoles[id]->width - 1;
vconsole_update_cursor(id, 0);
vconsole_update_cursor(id, cursorY * vconsoles[id]->width + cursorX);
break;
case 'J': // clear screen, home cursor
memsetw(vconsoles[id]->buffer, 0x0720, vconsoles[id]->width * vconsoles[id]->height);
@ -140,8 +140,7 @@ cursorX);
vconsole_update_cursor(id, 0);
break;
case 'K': // erase line from cursor position (including char. under cursor) to end of line
memsetw(vconsoles[id]->buffer +
vconsoles[id]->cursorPosition, 0x0720, vconsoles[id]->width - cursorX);
memsetw(vconsoles[id]->buffer + vconsoles[id]->cursorPosition, 0x0720, vconsoles[id]->width - cursorX);
vconsole_draw(id);
break;
case 's': // push cursor position on an internal stack
@ -156,9 +155,9 @@ vconsoles[id]->cursorPosition, 0x0720, vconsoles[id]->width - cursorX);
}
break;
case 'm': // set text attributes
for (; vconsoles[id]->escapePosition; vconsoles[id]->escapePosition--)
for (evalEscapePosition = 0; evalEscapePosition <= vconsoles[id]->escapePosition; evalEscapePosition++)
{
switch (vconsoles[id]->escapeValue[vconsoles[id]->escapePosition])
switch (vconsoles[id]->escapeValue[evalEscapePosition])
{
case 0:
vconsoles[id]->foreground = 0x07;
@ -189,7 +188,7 @@ vconsoles[id]->cursorPosition, 0x0720, vconsoles[id]->width - cursorX);
case 35:
case 36:
case 37:
vconsoles[id]->foreground = vconsoles[id]->escapeValue[vconsoles[id]->escapePosition] - 30;
vconsoles[id]->foreground = ansi2vgaAttr[vconsoles[id]->escapeValue[evalEscapePosition] - 30];
vconsole_update_attribute(id);
break;
case 40:
@ -200,11 +199,12 @@ vconsoles[id]->cursorPosition, 0x0720, vconsoles[id]->width - cursorX);
case 45:
case 46:
case 47:
vconsoles[id]->background = vconsoles[id]->escapeValue[vconsoles[id]->escapePosition] - 30;
vconsoles[id]->background = ansi2vgaAttr[vconsoles[id]->escapeValue[evalEscapePosition] - 40];
vconsole_update_attribute(id);
break;
}
}
vconsoles[id]->escapePosition = 0;
break;
}
memsetd(vconsoles[id]->escapeValue, 0, 8);
@ -238,27 +238,21 @@ void vconsole_put_char(minor_t id, int c)
{
case '\t':
if (vconsoles[id]->cursorPosition % 8)
vconsoles[id]->cursorPosition += (8 - (vconsoles[id]->cursorPosition % 8));
vconsole_update_cursor(id, vconsoles[id]->cursorPosition + (8 - (vconsoles[id]->cursorPosition % 8)));
else
vconsoles[id]->cursorPosition += 8;
if (id == activeConsole)
console_update_cursor(id, vconsoles[id]->cursorPosition);
vconsole_update_cursor(id, vconsoles[id]->cursorPosition + 8);
break;
case '\n':
if (vconsoles[id]->cursorPosition % (vconsoles[id]->width))
vconsoles[id]->cursorPosition += (vconsoles[id]->width - (vconsoles[id]->cursorPosition % vconsoles[id]->width));
vconsole_update_cursor(id, vconsoles[id]->cursorPosition + (vconsoles[id]->width - (vconsoles[id]->cursorPosition % vconsoles[id]->width)));
else
vconsoles[id]->cursorPosition += vconsoles[id]->width;
if (id == activeConsole)
console_update_cursor(id, vconsoles[id]->cursorPosition);
vconsole_update_cursor(id, vconsoles[id]->cursorPosition + vconsoles[id]->width);
break;
default:
vconsoles[id]->buffer[vconsoles[id]->cursorPosition << 1] = c | (vconsoles[id]->attribute << 8);
vconsoles[id]->buffer[vconsoles[id]->cursorPosition] = c | (vconsoles[id]->attribute << 8);
if (id == activeConsole)
console_put_char(id, c | (vconsoles[id]->attribute << 8), vconsoles[id]->cursorPosition);
vconsoles[id]->cursorPosition++;
if (id == activeConsole)
console_update_cursor(id, vconsoles[id]->cursorPosition);
vconsole_update_cursor(id, vconsoles[id]->cursorPosition + 1);
}
}
}
@ -266,6 +260,17 @@ void vconsole_put_char(minor_t id, int c)
void vconsole_update_cursor(minor_t id, u16_t position)
{
vconsoles[id]->cursorPosition = position;
if (position >= (vconsoles[id]->width * vconsoles[id]->height)) // time to scroll console
{
vconsoles[id]->cursorPosition -= vconsoles[id]->width;
memcpyw(vconsoles[id]->buffer, vconsoles[id]->buffer + vconsoles[id]->width, vconsoles[id]->width * (vconsoles[id]->height - 1));
memsetw(vconsoles[id]->buffer + (vconsoles[id]->width * (vconsoles[id]->height - 1)), 0x0720, vconsoles[id]->width);
if (activeConsole == id)
{
vconsole_draw(id);
return;
}
}
if (activeConsole == id)
console_update_cursor(id, position);
}

4
kernel/functions.h
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@ -55,8 +55,8 @@ static inline void timer_init(u32_t freq)
{
u32_t wait = 1193180 / freq; //how many ticks the PIT must wait before issuing an interrupt
outportb(0x43, 0x34);
outportb(0x40, freq); //lsb
outportb(0x40, freq >> 8); //msb
outportb(0x40, wait); //lsb
outportb(0x40, wait >> 8); //msb
}
//Returns the size of the kernel (code & data)

2
kernel/hos_defines.h
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@ -8,6 +8,8 @@
#define PARALLEL_DEBUG
#define HOS_TIMER_FREQ 100
#define VIRT_OFFSET 0xC0000000
#define PHYS_LOAD 0x00108000
#define HEAP_START 0xD0000000

34
kernel/kernel.c
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@ -26,7 +26,8 @@ mb_module_t mb_modules[MAX_MODULES];
mb_apm_t mb_apm_table;
byte real_mode_module;
char mb_cmdline[256];
int criticalCounter;
int criticalCounter; // semaphore for if interrupts are disabled
u32_t timer;
extern u32_t mm_freepages;
@ -96,7 +97,7 @@ void k_init()
pic_remap(0x20, 0x28);
pic_mask1(0); //unmask IRQ's 0-7
pic_mask2(0); //unmask IRQ's 8-15
timer_init(100);
timer_init(HOS_TIMER_FREQ);
mm_init();
vmm_init();
// test the memory manager
@ -119,14 +120,8 @@ void k_init()
devices_init();
console_init(6);
console_activate(1);
kprintf("We can finally see text!\n");
while (1)
(*(u16_t *)CONSOLE_MEMORY)++;
if (real_mode_module)
{
kprintf("Real mode module present\n");
}
u16_t *vidMem = (u16_t *)CONSOLE_MEMORY;
kprintf(" \e[31mWe \e[1mcan \e[32mfinally \e[33;45msee\e[0;7m text\e[0m!\n");
u16_t *vidMem = (u16_t *)(CONSOLE_MEMORY + 160);
u16_t i;
for (i = 0; i < 256; i++)
{
@ -134,17 +129,30 @@ void k_init()
if (((u32_t)vidMem % 32) == 0)
vidMem += 64;
}
if (real_mode_module)
{
kprintf("Real mode module present\n");
}
criticalCounter--;
}
void isr(u32_t num)
{
criticalCounter++;
kprintf("Interrupt #%d, CR2 = 0x%x!\n", num, read_cr2());
halt();
switch (num)
{
case 0x20: // timer interrupt
(*(u16_t *)CONSOLE_MEMORY)++;
timer++;
if (!(timer % (HOS_TIMER_FREQ / 4)))
{
kprintf("Timer int ");
}
pic_eoi();
break;
default:
kprintf("Unhandled interrupt #%d, CR2 = 0x%x!\n", num, read_cr2());
halt();
}
criticalCounter--;
}

4
readme.txt
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@ -14,14 +14,14 @@ Goals: (A = accomplished, P = in progress, T = todo)
(A) PS/2 keyboard & mouse drivers
(A) Utilize x86's paging architecture for virtual memory management
(P) Console Manager
(P) VFS abstraction layer for a single file system
(P) ram disk driver
(P) devfs file system driver
(P) ext2 file system support
(T) ext2 file system support
(T) vfat file system support
(T) Multitasking support
(T) Console Manager
(T) HASH command shell
(T) Window Manager
(T) Various other utilities/applications