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Draft: lab 3 irq wtf

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This commit is contained in:
Yi-Ting Shih
2025-03-24 10:48:35 +08:00
parent 9d19b8b3b6
commit 98327b148a
19 changed files with 386 additions and 142 deletions
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100
kernel/lib/shell.c
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@@ -1,10 +1,13 @@
#include <stddef.h>
#include <errcode.h>
#include <kmalloc.h>
#include <utils.h>
#include <string.h>
#include <uart.h>
#include <mbox.h>
#include <shell.h>
#include <exec.h>
#include <mman.h>
#define INPUT_BUFLEN 1000
@@ -13,25 +16,29 @@
#define PM_RSTC 0x3F10001c
#define PM_WDOG 0x3F100024
void help (void)
static inline
void _help (void)
{
uart_puts(
"help : print this help menu" ENDL
"hello : print Hello World!" ENDL
"hwinfo : print hardware info" ENDL
"memalloc : alloate memory and print" ENDL
"ls : list directory contents" ENDL
"cat : concatenate files and print" ENDL
"reboot : reboot the device" ENDL
"help : print this help menu" ENDL
"hello : print Hello World!" ENDL
"hwinfo : print hardware info" ENDL
"memalloc <size>: alloate memory and print" ENDL
"ls : list directory contents" ENDL
"cat <file>: concatenate files and print" ENDL
"exec <file>: execute file in usermode" ENDL
"reboot : reboot the device" ENDL
);
}
void hello (void)
static inline
void _hello (void)
{
uart_puts("hello, world" ENDL);
}
void hwinfo (void)
static inline
void _hwinfo (void)
{
uart_puts(
"hwinfo: " ENDL
@@ -51,7 +58,8 @@ void hwinfo (void)
uart_puts(ENDL);
}
void memalloc(size_t size)
static inline
void _memalloc(size_t size)
{
void *addr = kmalloc(size);
uart_puts("size: ");
@@ -63,40 +71,60 @@ void memalloc(size_t size)
uart_puts(ENDL);
}
void ls_initrd_callback(file_node_t *tr)
static inline
void _ls_initrd_callback(file_node_t *tr)
{
uart_puts(tr->filename);
uart_puts(ENDL);
}
void ls(file_node_t *root)
static inline
void _ls(file_node_t *root)
{
initrd_traverse(root, ls_initrd_callback);
initrd_traverse(root, _ls_initrd_callback);
}
void cat(file_node_t *root, const char *filename)
static inline
void _cat(file_node_t *root, const char *filename)
{
file_node_t *tr = initrd_get(root, filename);
if (tr) {
uart_puts((char *)tr->filecontent);
} else {
uart_puts("FILE NOT EXIST!" ENDL);
exit(ERR_NOT_EXIST);
}
}
void set(long addr, unsigned int value) {
volatile unsigned int* point = (unsigned int*)addr;
*point = value;
}
void reset(int tick) { // reboot after watchdog timer expire
set(PM_RSTC, PM_PASSWORD | 0x20); // full reset
set(PM_WDOG, PM_PASSWORD | tick); // number of watchdog tick
}
void reboot(void)
static inline
void _exec(file_node_t *root, const char *filename)
{
reset(1 << 16);
file_node_t *tr = initrd_get(root, filename);
if (tr) {
void *userspace = allocate_page(1 << 6);
memcpy(userspace, tr->filecontent, tr->filesize);
user_exec(userspace, userspace + (1 << (12 + 6)) - 8);
kfree(userspace);
} else {
exit(ERR_NOT_EXIST);
}
}
static inline
void _set(long addr, unsigned int value) {
volatile unsigned int* point = (unsigned int*)addr;
*point = value;
}
static inline
void _reset(int tick) { // reboot after watchdog timer expire
_set(PM_RSTC, PM_PASSWORD | 0x20); // full reset
_set(PM_WDOG, PM_PASSWORD | tick); // number of watchdog tick
}
static inline
void _reboot(void)
{
_reset(1 << 16);
}
int shell(file_node_t *initrd_root)
@@ -127,19 +155,21 @@ int shell(file_node_t *initrd_root)
*j = '\0';
if (!strcmp(bin, "help")) {
help();
_help();
} else if (!strcmp(bin, "hello")) {
hello();
_hello();
} else if (!strcmp(bin, "hwinfo")) {
hwinfo();
_hwinfo();
} else if (!strcmp(bin, "memalloc")){
memalloc((size_t)atoi32(param));
_memalloc((size_t)atoi32(param));
} else if (!strcmp(bin, "ls")) {
ls(initrd_root);
_ls(initrd_root);
} else if (!strcmp(bin, "cat")) {
cat(initrd_root, param);
_cat(initrd_root, param);
} else if (!strcmp(bin, "exec")) {
_exec(initrd_root, param);
} else if (!strcmp(bin, "reboot")) {
reboot();
_reboot();
}
return true;