void welcome() {
tty_clear();
wstr_color(" |\\ /|( ____ \\( \\ ( ____ \\( ___ )( )( ____ \\\n", COLOR_RED);
wstr_color(" | ) ( || ( \\/| ( | ( \\/| ( ) || () () || ( \\/\n", COLOR_RED);
wstr_color(" | | _ | || (__ | | | | | | | || || || || (\\\n", COLOR_RED);
wstr_color(" | |( )| || __) | | | | | | | || |(_)| || __)\\\n", COLOR_RED);
wstr_color(" | || || || ( | | | | | | | || | | || (\\\n", COLOR_RED);
wstr_color(" | () () || (____/\\| (____/\\| (____/\\| (___) || ) ( || (____/\\\n", COLOR_RED);
wstr_color(" (_______)(_______/(_______/(_______/(_______)|/ \\|(_______/\n\n", COLOR_RED);
wstr_color(" \\__ __/( ___ )\n", COLOR_YELLOW);
wstr_color(" ) ( | ( ) |\n", COLOR_YELLOW);
wstr_color(" | | | | | |\n", COLOR_YELLOW);
wstr_color(" | | | | | |\n", COLOR_YELLOW);
wstr_color(" | | | | | |\n", COLOR_YELLOW);
wstr_color(" | | | (___) |\n", COLOR_YELLOW);
wstr_color(" )_( (_______)\n\n", COLOR_YELLOW);
wstr_color(" _______ _______ _________ _______ _ _______ _______ \n", COLOR_BLUE);
wstr_color("( ____ )|\\ /|( ___ )\\__ __/( ___ )( ( /|( ___ )( ____ \\\\\n", COLOR_BLUE);
wstr_color("| ( )|| ) ( || ( ) | ) ( | ( ) || \\ ( || ( ) || ( \\/\n", COLOR_BLUE);
wstr_color("| (____)|| (___) || | | | | | | | | || \\ | || | | || (_____ \n", COLOR_BLUE);
wstr_color("| _____)| ___ || | | | | | | | | || (\\ \\) || | | |(_____ )\n", COLOR_BLUE);
wstr_color("| ( | ( ) || | | | | | | | | || | \\ || | | | ) |\n", COLOR_BLUE);
wstr_color("| ) | ) ( || (___) | | | | (___) || ) \\ || (___) |/\\____) |\n", COLOR_BLUE);
wstr_color("|/ |/ \\|(_______) )_( (_______)|/ )_)(_______)\\_______)\n", COLOR_BLUE);
printk(" by Feraru Mihail");
getch();
tty_clear();
}
/*
* Performs control operation on a tty device.
*/
PRIVATE int tty_ioctl(unsigned minor, unsigned cmd, unsigned arg)
{
int ret;
UNUSED(minor);
/* Parse command. */
switch (cmd)
{
/* Get tty settings. */
case TTY_GETS:
ret = tty_gets(&tty, (struct termios *)arg);
break;
/* Clear console. */
case TTY_CLEAR:
ret = tty_clear(&tty);
break;
/* Invalid operation. */
default:
ret = -EINVAL;
break;
}
return (ret);
}
void tty_init() {
tty_y = 0;
tty_x = 0;
tty_updatecursor();
tty_color = make_color(COLOR_LIGHT_GREY, COLOR_BLACK);
tty_buffer = VGA_MEMORY;
tty_clear();
}
/// Called from our bootstub
/// \param mbd Virtual address of Grub multiboot info structure (*? bytes)
/// \param magic Grub boot signature (0x1BADB002) (4 bytes)
void arch_init(multiboot_info_t* mbd, unsigned int magic)
{
// Create the kernel info build string
sprintf(kinfo.buildstring, "EOS (Built %s %s using GNU C version %s)", __DATE__, __TIME__, __VERSION__);
// Low level hardware setup of the interrupt controller and system timer
pic_init();
pit_init(100);
asm ("sti");
// Clear screen
tty_clear();
// Parse the command line
kernel_parse_cmdline((char *)PHYS_VIRT(mbd->cmdline));
// Now safe to print to the kernel log
printf("%s\n", kinfo.buildstring);
kprintf(1, "arch_init(mbd: %08X, magic: %08X)\n", mbd, magic);
// Read CPU information
cpu_init();
// Read placement information
kinfo.start = &_ld_kernel_start;
kinfo.end = &_ld_kernel_end;
kinfo.memory = mbd->mem_upper;
// Read kernel elf headers
elf_init_kernel(&mbd->u.elf_sec);
// Read module information
if (mbd->mods_count > 0)
{
kprintf(2, "found %d modules\n", mbd->mods_count);
// Read multiboot module information
multiboot_module_t *mod;
mod = (void *)PHYS_VIRT(mbd->mods_addr);
// Expand kernel end to include the loaded modules
kinfo.end = (void *)PHYS_VIRT(mod[mbd->mods_count - 1].mod_end);
// The first module is the initfs the rest are drivers
if (mbd->mods_count > 1)
arch_init_drivers(&mod[1], mbd->mods_count - 1);
}
// Start the memory manager
mm_init(128 * 1024);
dev_init();
kernel_init();
}
char *tty_rcall(uint64_t source, struct vfs_obj *file, const char *args) {
char buffer[10];
if (!strcmp(args, "getfg")) {
sprintf(buffer, "%d", getpid());
return strdup(buffer);
}
if (!strcmp(args, "clear")) {
tty_clear();
tty->cursor = 0x0000;
}
return NULL;
}
/**** start of autodetect code ***************************/
int is_it_is_it_huh(int port)
{
int j;
tty_clear(port, 1, 0);
ioctl(port, TIOCMGET, &j);
if ((j & TIOCM_CTS) || (j & TIOCM_DSR))
return 0;
tty_set(port, 1, 0);
ioctl(port, TIOCMGET, &j);
if ((!(j & TIOCM_CTS)) || (j & TIOCM_DSR))
return 0;
return 1;
}
int pinsys_init(void)
{
signal_length = (hw.code_length + (hw.code_length / BITS_COUNT) * 2) * 1000000 / 1200;
if (!tty_create_lock(hw.device)) {
logprintf(LOG_ERR, "could not create lock files");
return (0);
}
if ((hw.fd = open(hw.device, O_RDWR | O_NONBLOCK | O_NOCTTY)) < 0) {
int detected;
/* last character gets overwritten */
char auto_lirc_device[] = "/dev/ttyS_";
tty_delete_lock();
logprintf(LOG_WARNING, "could not open %s, autodetecting on /dev/ttyS[0-3]", hw.device);
logperror(LOG_WARNING, "pinsys_init()");
/* it can also mean you compiled serial support as a
module and it isn't inserted, but that's unlikely
unless you're me. */
detected = autodetect();
if (detected == -1) {
logprintf(LOG_ERR, "no device found on /dev/ttyS[0-3]");
tty_delete_lock();
return (0);
} else { /* detected */
auto_lirc_device[9] = '0' + detected;
hw.device = auto_lirc_device;
if ((hw.fd = open(hw.device, O_RDWR | O_NONBLOCK | O_NOCTTY)) < 0) {
/* unlikely, but hey. */
logprintf(LOG_ERR, "couldn't open autodetected device \"%s\"", hw.device);
logperror(LOG_ERR, "pinsys_init()");
tty_delete_lock();
return (0);
}
}
}
if (!tty_reset(hw.fd)) {
logprintf(LOG_ERR, "could not reset tty");
pinsys_deinit();
return (0);
}
if (!tty_setbaud(hw.fd, 1200)) {
logprintf(LOG_ERR, "could not set baud rate");
pinsys_deinit();
return (0);
}
/* set RTS, clear DTR */
if (!tty_set(hw.fd, 1, 0) || !tty_clear(hw.fd, 0, 1)) {
logprintf(LOG_ERR, "could not set modem lines (DTR/RTS)");
pinsys_deinit();
return (0);
}
/* I dunno, but when lircd starts may log `reading of byte 1
failed' I know that happened when testing, it's a zero
byte. Problem is, flushing doesn't fix it. It's not fatal,
it's an indication that it gets fixed. still... */
if (tcflush(hw.fd, TCIFLUSH) < 0) {
logprintf(LOG_ERR, "could not flush input buffer");
pinsys_deinit();
return (0);
}
return (1);
}
void shell(char *str) {
if (!strcmp(str, "exit")) {
panic("Exit.", __LINE__, __FILE__);
} else if (!strcmp(str, "test")) {
testing_shell(str);
} else if (!strcmp(str, "time")) {
print_time();
printk("\n");
} else if (!strcmp(str, "tick")) {
printk("Tick: %d\n", get_tick());
} else if (!strcmp(str, "clock")) {
printk("WARN: no clock yet");
} else if (!strcmp(str, "clear")) {
tty_clear();
} else if (!strcmp(str, "reset-clock")) {
hours = 0;
minutes = 0;
seconds = 0;
} else if (!strcmp(str, "write")) {
char *to_write = (char*) kmalloc(sizeof(char) * 30);
size_t len = strlen("\nLet's write this...\n");
memcpy(to_write, "Let's write this...\n\0", len + 1);
call(1, (uint32_t) to_write, (uint32_t) len, 0, 0, 0);
} else if (!strcmp(str, "tty")) {
++tty_index;
if (tty_index == 3) {
tty_index = 0;
}
current_tty = ttys[tty_index];
printk("\n[SYS] Switched to tty %d.\n", tty_index);
} else if (!strcmp(str, "reboot")) {
printk("System will reboot...");
reboot();
} else if (!strcmp(str, "sys-info")) {
printk("%s %s (%s) by %s.\nCopyright C 2015 %s.\nAll rights reserved.\n", OS_Name, Version, Relase_Date, Author, Author);
} else if (!strcmp(str, "help")) {
printk("After kernel boots up, user must enter user name and machine name. Now, a shell has started. Here user can use some commands:\n");
printk(" -> help -> display this page\n");
printk(" -> time -> display current time\n");
printk(" -> tick -> display current tick\n");
printk(" -> clock -> start a clock that can be stoped when ESC is pressed\n");
printk(" -> clear -> clear the screen\n");
printk(" -> reset->clock -> set clock to 0\n");
printk(" -> sys->info -> prints info about system\n");
printk(" -> test -> enter into testing shell that allows testing kernel functions\n");
printk(" -> exit -> close shell\n\n");
printk("Testing shell:\n");
printk(" Tests avabile in testing shell:\n");
printk(" -> exit -> close testing shell\n");
printk(" -> print-stdin -> print all data from standard input\n");
printk(" -> size -> print sizes of types, of kernel and RAM\n");
printk(" -> page-fault -> generate page fault\n");
printk(" -> address -> print addresses of all kernel variables and of some temporary\n");
printk(" -> alloc -> test kmalloc and kfree\n");
} else {
printk("Command not found!\n");
}
}