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#include "shell.h"
#include "font.h"
#include "heap.h"
#include "fs.h"
#include "gfx.h"
#include "string.h"
#include "pci.h"
#include "memory.h"
static void cmd_echo(str arg)
{
print(arg);
print_char('\n');
}
static void cmd_cat(str arg)
{
str f = fs_read(arg);
if (f.data == nil) {
print(S("cat: file not found: "));
print(arg);
print(S("\n"));
} else {
print(f);
free(f.data);
}
}
static void cmd_font(str arg)
{
str f = fs_read(arg);
if (f.data == nil) {
print(S("font: file not found: "));
print(arg);
print(S("\n"));
} else {
if (f.len == 16*256)
font_load_blob(f.data);
else
print(S("font: invalid file size\n"));
free(f.data);
}
}
static void cmd_fontdemo()
{
const u8 max = '~' - '!' + 1;
char buf[max];
for (u8 i = 0; i < max; i++)
buf[i] = i + '!';
print(S("fontdemo:\n"));
print((str) { max, buf });
print(S("\n"));
}
static void cmd_img(str arg)
{
str f = fs_read(arg);
if (f.data == nil) {
print(S("img: file not found: "));
print(arg);
print(S("\n"));
} else {
if (f.len < 2 * sizeof(u32))
print(S("img: missing header\n"));
else {
u32 width = ((u32 *) f.data)[0];
u32 height = ((u32 *) f.data)[1];
if (f.len != 2 * sizeof(u32) + width * height * sizeof(color))
print(S("img: invalid file size\n"));
else
gfx_draw_img(gfx_info->width-width, 0, width, height,
(void *) (f.data + 2 * sizeof(u32)));
}
free(f.data);
}
}
static void cmd_lspci(str arg)
{
(void) arg;
pci_enumerate();
}
static void cmd_run(str arg)
{
shell_run_file(arg);
}
extern char keymap[256];
static void cmd_loadkeys(str arg)
{
str f = fs_read(arg);
if (f.data == nil) {
print(S("loadkeys: file not found: "));
print(arg);
print(S("\n"));
} else {
if (f.len == 256)
memcpy(keymap, f.data, 256);
else
print(S("loadkeys: invalid file size\n"));
free(f.data);
}
}
typedef struct {
str name;
void (*fn)(str arg);
} command;
static command registry[] = {
{ S("echo"), &cmd_echo },
{ S("cat"), &cmd_cat },
{ S("font"), &cmd_font },
{ S("fontdemo"), &cmd_fontdemo },
{ S("img"), &cmd_img },
{ S("lspci"), &cmd_lspci },
{ S("run"), &cmd_run },
{ S("loadkeys"), &cmd_loadkeys },
};
void shell_run_cmd(str cmd)
{
str prog = str_split_walk(&cmd, S(" \t"));
if (prog.len == 0)
return;
for (usize i = 0; i < sizeof registry / sizeof *registry; i++) {
if (str_cmp(prog, registry[i].name) == 0) {
registry[i].fn(cmd);
return;
}
}
print(S("shell: unknown command: "));
print(prog);
print(S("\n"));
}
void shell_run_file(str filename)
{
str f = fs_read(filename);
if (f.data == nil) {
print(S("shell: file not found: "));
print(filename);
print(S("\n"));
} else {
str iter = f;
for (;;) {
str cmd = str_split_walk(&iter, S("\n"));
if (cmd.data == nil)
break;
shell_run_cmd(cmd);
}
free(f.data);
}
}
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