595 lines
19 KiB
C
595 lines
19 KiB
C
/* Deshab Shell — 命令行交互界面
|
||
* 接收 PS/2 键盘输入，执行内置命令。
|
||
* 使用 Deshab "Sealed Arc" 视觉风格系统。
|
||
*/
|
||
|
||
#include "../UTSM/include/utsm/dsk.h"
|
||
|
||
typedef unsigned char u8;
|
||
typedef unsigned short u16;
|
||
typedef unsigned int u32;
|
||
typedef unsigned long long u64;
|
||
typedef long long i64;
|
||
|
||
#define COM1 0x3F8
|
||
|
||
static __inline__ void outb(u16 port, u8 value) { __asm__ volatile("outb %0,%1"::"a"(value),"Nd"(port)); }
|
||
static __inline__ u8 inb(u16 port) { u8 v; __asm__ volatile("inb %1,%0":"=a"(v):"Nd"(port)); return v; }
|
||
|
||
static void sputc(char c) {
|
||
for (unsigned int i=0; i<100000; i++) { if (inb(COM1+5)&0x20) break; }
|
||
outb(COM1, (unsigned char)c);
|
||
}
|
||
static void swrite(const char *s) { while(*s) { if(*s=='\n')sputc('\r'); sputc(*s++); } }
|
||
static void logl(const char *s) { swrite(s); swrite("\n"); }
|
||
|
||
/* ASCII 字体 — 必须在 deshab_ui.h 之前包含，因为 du_draw_char 引用 g_ascii */
|
||
#include "../firstInit/ascii_bitmaps.c"
|
||
#include "../UTSM/include/utsm/deshab_ui.h"
|
||
|
||
/* ---- 风格令牌（引用 deshab_ui.h 语义色） ---- */
|
||
#define BG_COLOR DS_DARK_BG_PRIMARY
|
||
#define TEXT_FG DS_DARK_TEXT_PRIMARY
|
||
#define PROMPT_FG DS_DARK_PROMPT
|
||
#define ERROR_FG DP_ERROR
|
||
#define OK_FG DP_SUCCESS
|
||
#define DIM_FG DS_DARK_TEXT_DIM
|
||
#define ACCENT_FG DS_DARK_ACCENT
|
||
#define DECORATIVE_FG DS_DARK_DECORATIVE
|
||
|
||
/* 标题栏参数 */
|
||
#define TITLEBAR_H 28
|
||
#define TITLEBAR_BG DP_ABYSS_800
|
||
#define TITLEBAR_FG DS_DARK_TEXT_SECONDARY
|
||
#define TITLEBAR_ACCENT DS_DARK_ACCENT
|
||
|
||
/* 状态栏参数 */
|
||
#define STATUSBAR_H 22
|
||
#define STATUSBAR_BG DP_ABYSS_800
|
||
|
||
/* 终端尺寸 */
|
||
#define TERM_COLS 100
|
||
#define TERM_ROWS 35
|
||
#define TERM_MAX_CHARS (TERM_COLS * TERM_ROWS)
|
||
|
||
static du_context g_ctx;
|
||
static u64 fb_a, fb_w, fb_h, fb_p;
|
||
|
||
/* 终端缓冲区 — 字符 + 颜色 */
|
||
static u8 term_ch[TERM_MAX_CHARS];
|
||
static u32 term_fg[TERM_MAX_CHARS];
|
||
static int term_w = TERM_COLS;
|
||
static int term_h = TERM_ROWS;
|
||
static int cur_col = 0;
|
||
static int cur_row = 0;
|
||
static int cur_visible = 1;
|
||
|
||
/* ---- 终端像素坐标 ---- */
|
||
static int term_start_x, term_start_y;
|
||
|
||
static void term_init_pos(void) {
|
||
int margin_x = (int)DU_SPACE_MD;
|
||
term_start_x = margin_x;
|
||
/* 标题栏下方开始 */
|
||
term_start_y = TITLEBAR_H + (int)DU_SPACE_SM;
|
||
int avail_w = (int)fb_w - margin_x * 2;
|
||
int avail_h = (int)fb_h - term_start_y - STATUSBAR_H - (int)DU_SPACE_SM;
|
||
term_w = avail_w / (int)DU_ASCII_STEP;
|
||
term_h = avail_h / (int)DU_ASCII_LINE_H;
|
||
if (term_w < 10) term_w = 10;
|
||
if (term_h < 5) term_h = 5;
|
||
if (term_w > TERM_COLS) term_w = TERM_COLS;
|
||
if (term_h > TERM_ROWS) term_h = TERM_ROWS;
|
||
}
|
||
|
||
static void term_clear(void) {
|
||
for (int i = 0; i < TERM_MAX_CHARS; i++) {
|
||
term_ch[i] = ' ';
|
||
term_fg[i] = TEXT_FG;
|
||
}
|
||
cur_col = 0;
|
||
cur_row = 0;
|
||
}
|
||
|
||
static void term_scroll(void) {
|
||
for (int r = 1; r < term_h; r++) {
|
||
for (int c = 0; c < term_w; c++) {
|
||
int src = r * TERM_COLS + c;
|
||
int dst = (r-1) * TERM_COLS + c;
|
||
term_ch[dst] = term_ch[src];
|
||
term_fg[dst] = term_fg[src];
|
||
}
|
||
}
|
||
for (int c = 0; c < term_w; c++) {
|
||
term_ch[(term_h-1) * TERM_COLS + c] = ' ';
|
||
term_fg[(term_h-1) * TERM_COLS + c] = TEXT_FG;
|
||
}
|
||
cur_row = term_h - 1;
|
||
cur_col = 0;
|
||
}
|
||
|
||
static void term_newline(void) {
|
||
cur_col = 0;
|
||
cur_row++;
|
||
if (cur_row >= term_h) term_scroll();
|
||
}
|
||
|
||
static void term_putc_color(char c, u32 color) {
|
||
if (c == '\n') { term_newline(); return; }
|
||
if (c == '\r') { cur_col = 0; return; }
|
||
if (c == '\t') {
|
||
int spaces = 4 - (cur_col % 4);
|
||
for (int i = 0; i < spaces; i++) term_putc_color(' ', color);
|
||
return;
|
||
}
|
||
if (c < ' ' || c > '~') c = '?';
|
||
if (cur_col >= term_w) term_newline();
|
||
int idx = cur_row * TERM_COLS + cur_col;
|
||
term_ch[idx] = (u8)c;
|
||
term_fg[idx] = color;
|
||
cur_col++;
|
||
}
|
||
|
||
static void term_putc(char c) { term_putc_color(c, TEXT_FG); }
|
||
static void term_puts_color(const char *s, u32 color) { while (*s) term_putc_color(*s++, color); }
|
||
static void term_puts(const char *s) { term_puts_color(s, TEXT_FG); }
|
||
|
||
/* ---- 标题栏渲染 ---- */
|
||
static void draw_titlebar(void) {
|
||
du_fill_rect(&g_ctx, 0, 0, (i64)fb_w, TITLEBAR_H, TITLEBAR_BG);
|
||
/* 底部强调线 */
|
||
du_fill_rect(&g_ctx, 0, TITLEBAR_H - 2, (i64)fb_w, 2, TITLEBAR_ACCENT);
|
||
/* 左侧标题文字 */
|
||
du_draw_string(&g_ctx, "Deshab Shell",
|
||
(i64)DU_SPACE_MD, (TITLEBAR_H - (i64)DU_ASCII_CELL_H) / 2,
|
||
DS_DARK_TEXT_PRIMARY, TITLEBAR_BG, DU_ASCII_STEP);
|
||
/* 右侧版本号 */
|
||
du_draw_string(&g_ctx, "v0.1.0",
|
||
(i64)fb_w - 6 * (i64)DU_ASCII_STEP - (i64)DU_SPACE_MD,
|
||
(TITLEBAR_H - (i64)DU_ASCII_CELL_H) / 2,
|
||
DS_DARK_TEXT_DIM, TITLEBAR_BG, DU_ASCII_STEP);
|
||
}
|
||
|
||
/* ---- 状态栏渲染 ---- */
|
||
static void draw_statusbar(void) {
|
||
i64 sy = (i64)fb_h - STATUSBAR_H;
|
||
du_fill_rect(&g_ctx, 0, sy, (i64)fb_w, STATUSBAR_H, STATUSBAR_BG);
|
||
/* 顶部强调线 */
|
||
du_fill_rect(&g_ctx, 0, sy, (i64)fb_w, 1, DS_DARK_DIVIDER);
|
||
/* 左侧：当前路径 */
|
||
du_draw_string(&g_ctx, "/",
|
||
(i64)DU_SPACE_MD, sy + (STATUSBAR_H - (i64)DU_ASCII_CELL_H) / 2,
|
||
DS_DARK_TEXT_DIM, STATUSBAR_BG, DU_ASCII_STEP);
|
||
/* 右侧：root@deshab */
|
||
const char *user = "root@deshab";
|
||
int ulen = 0;
|
||
while (user[ulen]) ulen++;
|
||
du_draw_string(&g_ctx, user,
|
||
(i64)fb_w - ulen * (i64)DU_ASCII_STEP - (i64)DU_SPACE_MD,
|
||
sy + (STATUSBAR_H - (i64)DU_ASCII_CELL_H) / 2,
|
||
DS_DARK_ACCENT, STATUSBAR_BG, DU_ASCII_STEP);
|
||
}
|
||
|
||
static void term_redraw_all(void) {
|
||
/* 清屏背景 */
|
||
du_fill_bg_solid(&g_ctx, BG_COLOR);
|
||
/* 标题栏 */
|
||
draw_titlebar();
|
||
/* 渲染所有字符 */
|
||
for (int r = 0; r < term_h; r++) {
|
||
for (int c = 0; c < term_w; c++) {
|
||
int idx = r * TERM_COLS + c;
|
||
u8 ch = term_ch[idx];
|
||
if (ch == ' ') continue;
|
||
i64 x = term_start_x + (i64)c * (i64)DU_ASCII_STEP;
|
||
i64 y = term_start_y + (i64)r * (i64)DU_ASCII_LINE_H;
|
||
du_draw_char(&g_ctx, ch, x, y, term_fg[idx], BG_COLOR);
|
||
}
|
||
}
|
||
/* 光标 */
|
||
if (cur_visible && cur_col < term_w && cur_row < term_h) {
|
||
i64 x = term_start_x + (i64)cur_col * (i64)DU_ASCII_STEP;
|
||
i64 y = term_start_y + (i64)cur_row * (i64)DU_ASCII_LINE_H;
|
||
du_fill_rect(&g_ctx, x, y + (i64)DU_ASCII_CELL_H - 3,
|
||
(i64)DU_ASCII_CELL_W, 2, DS_DARK_CURSOR);
|
||
}
|
||
/* 状态栏 */
|
||
draw_statusbar();
|
||
}
|
||
|
||
static void term_redraw_cursor(void) {
|
||
if (cur_visible && cur_col < term_w && cur_row < term_h) {
|
||
i64 x = term_start_x + (i64)cur_col * (i64)DU_ASCII_STEP;
|
||
i64 y = term_start_y + (i64)cur_row * (i64)DU_ASCII_LINE_H;
|
||
du_fill_rect(&g_ctx, x, y + (i64)DU_ASCII_CELL_H - 3,
|
||
(i64)DU_ASCII_CELL_W, 2, DS_DARK_CURSOR);
|
||
}
|
||
}
|
||
|
||
static void term_clear_cursor(void) {
|
||
if (cur_col < term_w && cur_row < term_h) {
|
||
i64 x = term_start_x + (i64)cur_col * (i64)DU_ASCII_STEP;
|
||
i64 y = term_start_y + (i64)cur_row * (i64)DU_ASCII_LINE_H;
|
||
du_fill_rect(&g_ctx, x, y + (i64)DU_ASCII_CELL_H - 3,
|
||
(i64)DU_ASCII_CELL_W, 2, BG_COLOR);
|
||
}
|
||
}
|
||
|
||
/* ---- 输入缓冲 ---- */
|
||
static char input_buf[256];
|
||
static int input_len = 0;
|
||
static int input_cursor = 0;
|
||
|
||
/* ---- 键盘扫描码 → ASCII（Set 1） ---- */
|
||
static char scan_to_ascii(u8 sc, int shift) {
|
||
static const char normal[58] = {
|
||
0, 27, '1','2','3','4','5','6','7','8','9','0','-','=', 8, '\t',
|
||
'q','w','e','r','t','y','u','i','o','p','[',']','\n',0,
|
||
'a','s','d','f','g','h','j','k','l',';','\'', '`',0,'\\',
|
||
'z','x','c','v','b','n','m',',','.','/',0,'*',0,' '
|
||
};
|
||
static const char shifted[58] = {
|
||
0, 27, '!','@','#','$','%','^','&','*','(',')','_','+', 8, '\t',
|
||
'Q','W','E','R','T','Y','U','I','O','P','{','}','\n',0,
|
||
'A','S','D','F','G','H','J','K','L',':','"','~',0,'|',
|
||
'Z','X','C','V','B','N','M','<','>','?',0,'*',0,' '
|
||
};
|
||
if (sc >= 58) return 0;
|
||
return shift ? shifted[sc] : normal[sc];
|
||
}
|
||
|
||
/* ---- 内置命令 ---- */
|
||
static int str_eq(const char *a, const char *b) {
|
||
while (*a && *b) { if (*a != *b) return 0; a++; b++; }
|
||
return *a == *b;
|
||
}
|
||
|
||
static void cmd_help(void) {
|
||
term_puts_color("Deshab Shell — 内置命令列表:\n", PROMPT_FG);
|
||
term_puts(" help 显示此帮助\n");
|
||
term_puts(" clear 清屏\n");
|
||
term_puts(" echo <text> 显示文本\n");
|
||
term_puts(" version 显示系统版本\n");
|
||
term_puts(" uname 显示系统名称\n");
|
||
term_puts(" date 显示当前日期\n");
|
||
term_puts(" ver 显示内核版本（同 version）\n");
|
||
term_puts(" about 关于 Deshab\n");
|
||
term_puts(" reboot 重启系统\n");
|
||
term_puts(" halt 关机（停止 CPU）\n");
|
||
term_puts(" ls 列出根目录文件（暂未实现，需要 VFS）\n");
|
||
term_puts(" pci 列出 PCI 设备（暂未实现）\n");
|
||
}
|
||
|
||
static void cmd_version(void) {
|
||
term_puts_color("Deshab OS v0.1.0\n", OK_FG);
|
||
term_puts(" Kernel: DSK (Deshab System Kernel)\n");
|
||
term_puts(" Architecture: x86_64\n");
|
||
term_puts(" ABI: DKM (Deshab Kernel Module) v1\n");
|
||
term_puts(" Bootloader: Limine\n");
|
||
term_puts_color(" Style: Sealed Arc (Deshab UI)\n", DIM_FG);
|
||
}
|
||
|
||
static void cmd_uname(void) {
|
||
term_puts("Deshab\n");
|
||
}
|
||
|
||
static void cmd_about(void) {
|
||
term_puts_color("=== Deshab OS ===\n", PROMPT_FG);
|
||
term_puts("单地址空间 Ring0 内核实验系统\n");
|
||
term_puts("架构: UTSM + DSK + DKM 驱动模型\n");
|
||
term_puts_color("视觉: Sealed Arc 设计语言\n", DECORATIVE_FG);
|
||
term_puts_color("Built with Clang + lld\n", DIM_FG);
|
||
term_puts_color("(c) 2026 Deshab Project\n", DIM_FG);
|
||
}
|
||
|
||
static void cmd_clear(void) {
|
||
term_clear();
|
||
term_redraw_all();
|
||
}
|
||
|
||
static void cmd_reboot(void) {
|
||
term_puts_color("Rebooting...\n", PROMPT_FG);
|
||
term_redraw_all();
|
||
outb(0x64, 0xFE);
|
||
__asm__ volatile("int $0x03");
|
||
for(;;) __asm__("hlt");
|
||
}
|
||
|
||
static void cmd_halt(void) {
|
||
term_puts_color("System halted.\n", PROMPT_FG);
|
||
term_redraw_all();
|
||
for(;;) __asm__("hlt");
|
||
}
|
||
|
||
static void cmd_echo(const char *args) {
|
||
if (args && *args) term_puts_color(args, TEXT_FG);
|
||
term_putc('\n');
|
||
}
|
||
|
||
static u8 read_rtc_reg(u8 reg);
|
||
static u8 bcd_to_bin_impl(u8 bcd);
|
||
|
||
static void cmd_date(void) {
|
||
u8 year = bcd_to_bin_impl(read_rtc_reg(9));
|
||
u8 month = bcd_to_bin_impl(read_rtc_reg(8));
|
||
u8 day = bcd_to_bin_impl(read_rtc_reg(7));
|
||
u8 hour = bcd_to_bin_impl(read_rtc_reg(4));
|
||
u8 minute = bcd_to_bin_impl(read_rtc_reg(2));
|
||
u8 second = bcd_to_bin_impl(read_rtc_reg(0));
|
||
char buf[32];
|
||
int p = 0;
|
||
buf[p++] = '2'; buf[p++] = '0';
|
||
buf[p++] = '0' + year / 10; buf[p++] = '0' + year % 10;
|
||
buf[p++] = '-';
|
||
buf[p++] = '0' + month / 10; buf[p++] = '0' + month % 10;
|
||
buf[p++] = '-';
|
||
buf[p++] = '0' + day / 10; buf[p++] = '0' + day % 10;
|
||
buf[p++] = ' ';
|
||
buf[p++] = '0' + hour / 10; buf[p++] = '0' + hour % 10;
|
||
buf[p++] = ':';
|
||
buf[p++] = '0' + minute / 10; buf[p++] = '0' + minute % 10;
|
||
buf[p++] = ':';
|
||
buf[p++] = '0' + second / 10; buf[p++] = '0' + second % 10;
|
||
buf[p] = 0;
|
||
term_puts(buf);
|
||
term_putc('\n');
|
||
}
|
||
|
||
static void cmd_unknown(const char *cmd) {
|
||
term_puts_color("未知命令: ", ERROR_FG);
|
||
term_puts_color(cmd, ERROR_FG);
|
||
term_putc('\n');
|
||
term_puts_color("输入 'help' 查看可用命令\n", DIM_FG);
|
||
}
|
||
|
||
static void cmd_not_impl(const char *cmd) {
|
||
term_puts_color(cmd, ERROR_FG);
|
||
term_puts_color(": 此命令尚未实现\n", ERROR_FG);
|
||
}
|
||
|
||
static void execute_command(const char *cmd) {
|
||
while (*cmd == ' ') cmd++;
|
||
if (*cmd == 0) return;
|
||
const char *args = cmd;
|
||
while (*args && *args != ' ') args++;
|
||
int cmd_name_len = (int)(args - cmd);
|
||
char name[32];
|
||
if (cmd_name_len >= 32) cmd_name_len = 31;
|
||
for (int i = 0; i < cmd_name_len; i++) name[i] = cmd[i];
|
||
name[cmd_name_len] = 0;
|
||
while (*args == ' ') args++;
|
||
if (str_eq(name, "help") || str_eq(name, "?")) cmd_help();
|
||
else if (str_eq(name, "version") || str_eq(name, "ver")) cmd_version();
|
||
else if (str_eq(name, "uname")) cmd_uname();
|
||
else if (str_eq(name, "about")) cmd_about();
|
||
else if (str_eq(name, "clear") || str_eq(name, "cls")) cmd_clear();
|
||
else if (str_eq(name, "reboot")) cmd_reboot();
|
||
else if (str_eq(name, "halt") || str_eq(name, "shutdown")) cmd_halt();
|
||
else if (str_eq(name, "echo")) cmd_echo(args);
|
||
else if (str_eq(name, "date") || str_eq(name, "time")) cmd_date();
|
||
else if (str_eq(name, "ls") || str_eq(name, "dir")) cmd_not_impl("ls");
|
||
else if (str_eq(name, "pci")) cmd_not_impl("pci");
|
||
else if (str_eq(name, "cat")) cmd_not_impl("cat");
|
||
else if (str_eq(name, "cd")) cmd_not_impl("cd");
|
||
else if (str_eq(name, "pwd")) { term_puts("/\n"); }
|
||
else if (str_eq(name, "whoami")) { term_puts("root\n"); }
|
||
else if (str_eq(name, "id")) { term_puts("uid=0(root) gid=0(root)\n"); }
|
||
else cmd_unknown(name);
|
||
}
|
||
|
||
/* ---- CMOS RTC 读取 ---- */
|
||
static u8 read_rtc_reg(u8 reg) {
|
||
outb(0x70, reg);
|
||
return inb(0x71);
|
||
}
|
||
|
||
static u8 bcd_to_bin_impl(u8 bcd) {
|
||
return (u8)((bcd >> 4) * 10 + (bcd & 0x0F));
|
||
}
|
||
|
||
/* ---- 提示符 ---- */
|
||
static const char *PROMPT = "deshab# ";
|
||
|
||
static void draw_prompt(void) {
|
||
term_puts_color(PROMPT, PROMPT_FG);
|
||
}
|
||
|
||
/* ---- 输入行编辑 ---- */
|
||
static void redraw_input_line(void) {
|
||
int prompt_len = 0;
|
||
while (PROMPT[prompt_len]) prompt_len++;
|
||
i64 y = term_start_y + (i64)cur_row * (i64)DU_ASCII_LINE_H;
|
||
du_fill_rect(&g_ctx, term_start_x, y,
|
||
(i64)term_w * (i64)DU_ASCII_STEP,
|
||
(i64)DU_ASCII_CELL_H, BG_COLOR);
|
||
for (int i = 0; i < prompt_len; i++) {
|
||
i64 x = term_start_x + (i64)i * (i64)DU_ASCII_STEP;
|
||
du_draw_char(&g_ctx, PROMPT[i], x, y, PROMPT_FG, BG_COLOR);
|
||
}
|
||
for (int i = 0; i < input_len; i++) {
|
||
i64 x = term_start_x + (i64)(prompt_len + i) * (i64)DU_ASCII_STEP;
|
||
du_draw_char(&g_ctx, input_buf[i], x, y, TEXT_FG, BG_COLOR);
|
||
}
|
||
cur_col = prompt_len + input_cursor;
|
||
term_redraw_cursor();
|
||
}
|
||
|
||
static void insert_char(char c) {
|
||
if (input_len >= 255) return;
|
||
for (int i = input_len; i > input_cursor; i--) {
|
||
input_buf[i] = input_buf[i-1];
|
||
}
|
||
input_buf[input_cursor] = c;
|
||
input_len++;
|
||
input_cursor++;
|
||
redraw_input_line();
|
||
}
|
||
|
||
static void delete_char_back(void) {
|
||
if (input_cursor == 0) return;
|
||
for (int i = input_cursor - 1; i < input_len - 1; i++) {
|
||
input_buf[i] = input_buf[i+1];
|
||
}
|
||
input_len--;
|
||
input_cursor--;
|
||
input_buf[input_len] = 0;
|
||
redraw_input_line();
|
||
}
|
||
|
||
static void delete_char_fwd(void) {
|
||
if (input_cursor >= input_len) return;
|
||
for (int i = input_cursor; i < input_len - 1; i++) {
|
||
input_buf[i] = input_buf[i+1];
|
||
}
|
||
input_len--;
|
||
input_buf[input_len] = 0;
|
||
redraw_input_line();
|
||
}
|
||
|
||
static void cursor_left(void) {
|
||
if (input_cursor > 0) {
|
||
input_cursor--;
|
||
term_clear_cursor();
|
||
cur_col--;
|
||
if (cur_col < 0) { cur_col = term_w - 1; cur_row--; }
|
||
term_redraw_cursor();
|
||
}
|
||
}
|
||
|
||
static void cursor_right(void) {
|
||
if (input_cursor < input_len) {
|
||
input_cursor++;
|
||
term_clear_cursor();
|
||
cur_col++;
|
||
if (cur_col >= term_w) { cur_col = 0; cur_row++; }
|
||
term_redraw_cursor();
|
||
}
|
||
}
|
||
|
||
static void cursor_home(void) {
|
||
term_clear_cursor();
|
||
int prompt_len = 0;
|
||
while (PROMPT[prompt_len]) prompt_len++;
|
||
cur_col = prompt_len;
|
||
input_cursor = 0;
|
||
term_redraw_cursor();
|
||
}
|
||
|
||
static void cursor_end(void) {
|
||
term_clear_cursor();
|
||
int prompt_len = 0;
|
||
while (PROMPT[prompt_len]) prompt_len++;
|
||
cur_col = prompt_len + input_len;
|
||
input_cursor = input_len;
|
||
term_redraw_cursor();
|
||
}
|
||
|
||
static void kill_to_end(void) {
|
||
input_len = input_cursor;
|
||
input_buf[input_len] = 0;
|
||
redraw_input_line();
|
||
}
|
||
|
||
static void kill_line(void) {
|
||
input_len = 0;
|
||
input_cursor = 0;
|
||
input_buf[0] = 0;
|
||
redraw_input_line();
|
||
}
|
||
|
||
/* ---- 主入口 ---- */
|
||
__attribute__((visibility("default")))
|
||
void dsk_entry(const dsk_boot_context *ctx) {
|
||
__asm__ volatile("cli");
|
||
logl("[shell] boot");
|
||
|
||
if (!ctx || ctx->magic != 0x44534B31424F4F54ULL) {
|
||
logl("[shell] bad context");
|
||
for(;;) __asm__("hlt");
|
||
}
|
||
|
||
fb_a = ctx->framebuffer_address;
|
||
fb_w = ctx->framebuffer_width;
|
||
fb_h = ctx->framebuffer_height;
|
||
fb_p = ctx->framebuffer_pitch;
|
||
|
||
/* 初始化风格系统渲染上下文 */
|
||
du_context_init(&g_ctx, fb_a, fb_w, fb_h, fb_p);
|
||
|
||
term_init_pos();
|
||
term_clear();
|
||
term_redraw_all();
|
||
|
||
/* 启动 banner — 使用风格令牌 */
|
||
term_puts_color("=== Deshab OS v0.1.0 ===\n", ACCENT_FG);
|
||
term_puts_color("欢迎使用 Deshab Shell\n", OK_FG);
|
||
term_puts_color("输入 'help' 查看可用命令\n", DIM_FG);
|
||
term_putc('\n');
|
||
|
||
/* 主循环 */
|
||
int shift = 0;
|
||
int e0 = 0;
|
||
for (;;) {
|
||
draw_prompt();
|
||
input_len = 0;
|
||
input_cursor = 0;
|
||
input_buf[0] = 0;
|
||
int prompt_len = 0;
|
||
while (PROMPT[prompt_len]) prompt_len++;
|
||
cur_col = prompt_len;
|
||
term_redraw_cursor();
|
||
|
||
int cmd_done = 0;
|
||
while (!cmd_done) {
|
||
u8 st = inb(0x64);
|
||
if (!(st & 1)) { __asm__("pause"); continue; }
|
||
u8 data = inb(0x60);
|
||
if (st & 0x20) continue;
|
||
u8 sc = data;
|
||
if (sc == 0xE0) { e0 = 1; continue; }
|
||
if (sc == 0x2A || sc == 0x36) { shift = 1; continue; }
|
||
if (sc == 0xAA || sc == 0xB6) { shift = 0; continue; }
|
||
if (sc & 0x80) {
|
||
if (e0 && sc == 0x9C) { e0 = 0; }
|
||
else if (e0 && sc == 0xCB) { e0 = 0; }
|
||
else if (e0 && sc == 0xCD) { e0 = 0; }
|
||
else if (e0 && sc == 0xC8) { e0 = 0; }
|
||
else if (e0 && sc == 0xD0) { e0 = 0; }
|
||
else if (e0 && sc == 0xD3) { e0 = 0; }
|
||
else if (e0 && sc == 0xC7) { e0 = 0; }
|
||
else if (e0 && sc == 0xCF) { e0 = 0; }
|
||
e0 = 0;
|
||
continue;
|
||
}
|
||
if (e0) {
|
||
if (sc == 0x4B) cursor_left();
|
||
else if (sc == 0x4D) cursor_right();
|
||
else if (sc == 0x47) cursor_home();
|
||
else if (sc == 0x4F) cursor_end();
|
||
else if (sc == 0x53) delete_char_fwd();
|
||
else if (sc == 0x48) { }
|
||
else if (sc == 0x50) { }
|
||
e0 = 0;
|
||
continue;
|
||
}
|
||
if (sc == 0x1C) {
|
||
term_clear_cursor();
|
||
input_buf[input_len] = 0;
|
||
term_putc('\n');
|
||
execute_command(input_buf);
|
||
cmd_done = 1;
|
||
continue;
|
||
}
|
||
if (sc == 0x0E) { delete_char_back(); continue; }
|
||
if (sc == 0x01) { kill_line(); continue; }
|
||
if (sc == 0x15 && !shift) { kill_line(); continue; }
|
||
if (sc == 0x17 && !shift) { while (input_cursor > 0) delete_char_back(); continue; }
|
||
if (sc == 0x0B && !shift) { kill_to_end(); continue; }
|
||
char c = scan_to_ascii(sc, shift);
|
||
if (c && c >= 32 && c <= 126) {
|
||
insert_char(c);
|
||
}
|
||
}
|
||
}
|
||
}
|