int openvt_main(int argc UNUSED_PARAM, char **argv)
{
char vtname[sizeof(VC_FORMAT) + sizeof(int)*3];
struct vt_stat vtstat;
char *str_c;
int vtno;
int flags;
enum {
OPT_c = (1 << 0),
OPT_w = (1 << 1),
OPT_s = (1 << 2),
OPT_l = (1 << 3),
OPT_f = (1 << 4),
OPT_v = (1 << 5),
};
/* "+" - stop on first non-option */
flags = getopt32(argv, "+c:wslfv", &str_c);
argv += optind;
if (flags & OPT_c) {
/* Check for illegal vt number: < 1 or > 63 */
vtno = xatou_range(str_c, 1, 63);
} else {
vtno = find_free_vtno();
}
/* Grab new VT */
sprintf(vtname, VC_FORMAT, vtno);
/* (Try to) clean up stray open fds above fd 2 */
bb_daemonize_or_rexec(DAEMON_CLOSE_EXTRA_FDS | DAEMON_ONLY_SANITIZE, NULL);
close(STDIN_FILENO);
/*setsid(); - BAD IDEA: after we exit, child is SIGHUPed... */
xopen(vtname, O_RDWR);
xioctl(STDIN_FILENO, VT_GETSTATE, &vtstat);
if (flags & OPT_s) {
console_make_active(STDIN_FILENO, vtno);
}
if (!argv[0]) {
argv--;
argv[0] = getenv("SHELL");
if (!argv[0])
argv[0] = (char *) DEFAULT_SHELL;
/*argv[1] = NULL; - already is */
}
xdup2(STDIN_FILENO, STDOUT_FILENO);
xdup2(STDIN_FILENO, STDERR_FILENO);
#ifdef BLOAT
{
/* Handle -l (login shell) option */
const char *prog = argv[0];
if (flags & OPT_l)
argv[0] = xasprintf("-%s", argv[0]);
}
#endif
vfork_child(argv);
if (flags & OPT_w) {
/* We have only one child, wait for it */
safe_waitpid(-1, NULL, 0); /* loops on EINTR */
if (flags & OPT_s) {
console_make_active(STDIN_FILENO, vtstat.v_active);
// Compat: even with -c N (try to) disallocate:
// # /usr/app/kbd-1.12/bin/openvt -f -c 9 -ws sleep 5
// openvt: could not deallocate console 9
xioctl(STDIN_FILENO, VT_DISALLOCATE, (void*)(ptrdiff_t)vtno);
}
}
return EXIT_SUCCESS;
}
// Real entry point of the OS :
void init() {
unsigned int freq;
interrupt_init();
earlyterm_init();
earlyterm_clear();
kbd_init();
rtc_init();
time_init();
earlyterm_write("Kernel initialization...\n");
set_kernel_print(&earlyterm_write);
printk(LOG_INFO, "cmd args: '%s'\n", &cmdargs_begin);
cmdline_parse(&cmdargs_begin, 1024);
mmu_init();
pm_init_pages();
stimer_init();
hwkbd_start_periodic_update();
DBG_WAIT;
interrupt_inhibit_all(0);
// console initialisation as soon as possible
dev_init();
// add TTY device (on major 4)
ttydev_device.init();
dev_register_device(&ttydev_device, 4);
// add virtual terminal TTYs
vt_init();
// USB initialisation
usb_init();
// add usb-acm TTY
acm_usb_init();
DBG_WAIT;
// will be the last message displayed on early console
printk(LOG_INFO, "Switching screen to tty1...\n The display will be cleared.\n");
console_make_active();
// in all cases, Virtual Terminals should be made active (tty1)
DBG_WAIT;
vt_set_active(0);
// need to be changed for "overclocking" :
//freq_change(FREQ_STC_4, FREQ_DIV_1, FREQ_DIV_4);
freq_time_calibrate();
freq = freq_get_internal_hz();
printk(LOG_INFO, "CPU freq : %d.%dMHz\n", freq/1000000, (freq/100000)%10);
freq = freq_get_peripheral_hz();
printk(LOG_INFO, "Peripheral freq : %d.%dMHz\n", freq/1000000, (freq/100000)%10);
// initialize sysctl tables
ctl_init();
//test_keyboard_int();
//test_virtual_mem();
//asm volatile ("trapa #50");
//DBG_WAIT;
// Initializing VFS and device sub-sytems, mount platform filesystems,
// register platform devices...
vfs_init();
vfs_file_init();
vfs_register_fs(&smemfs_file_system, VFS_REGISTER_STATIC);
vfs_register_fs(&protofs_file_system, VFS_REGISTER_STATIC);
vfs_mount("protofs", NULL, VFS_MOUNT_ROOT);
vfs_create("/", "dev", INODE_TYPE_PARENT, INODE_FLAG_READ | INODE_FLAG_EXEC, 0);
vfs_create("/dev", "tty1", INODE_TYPE_DEV, INODE_FLAG_WRITE, 0x00040000);
vfs_create("/dev", "tty2", INODE_TYPE_DEV, INODE_FLAG_WRITE, 0x00040001);
vfs_create("/dev", "serial", INODE_TYPE_DEV, INODE_FLAG_WRITE, 0x00030000);
vfs_create("/dev", "console", INODE_TYPE_DEV, INODE_FLAG_WRITE,
console_get_device());
DBG_WAIT;
// keyboard input for virtual terminals
kbd_set_kstroke_handler(&vt_key_stroke);
// mount additional filesystems
vfs_create("/", "mnt", INODE_TYPE_PARENT, INODE_FLAG_WRITE, 0);
vfs_create("/mnt", "smem", INODE_TYPE_PARENT, INODE_FLAG_WRITE, 0);
vfs_mount("smemfs", "/mnt/smem", VFS_MOUNT_NORMAL);
DBG_WAIT;
// set /dev/display device
_display_device.init();
dev_register_device(&_display_device, 0x20);
vfs_create("/dev", "display", INODE_TYPE_DEV, INODE_FLAG_WRITE, 0x00200001);
// direct keyboard device on major 0x21
fxkeyboard_device.init();
dev_register_device(&fxkeyboard_device, 0x21);
vfs_create("/dev", "keyboard", INODE_TYPE_DEV, INODE_FLAG_WRITE, 0x00210000);
DBG_WAIT;
//test_keymatrix();
// test_keyboard();
/*while(1) {
char c;
if(vfs_read(console, &c, 1) == 1) {
vfs_write(console, &c, 1);
}
}*/
DBG_WAIT;
//test_vfs();
//test_sdcard();
//test_sleep_funcs();
// EEPROM-related code commented to avoid useless write cycles ;)
//test_eeprom();
/*char mybuf[128];
int len;
len = usb_receive(USB_EP_ADDR_EP1OUT, mybuf, 10, 0);
printk(LOG_DEBUG, "usb_receive ret=%d\n", len);
if(len > 0) {
mybuf[len] = '\0';
printk(LOG_DEBUG, "content = '%s'\n", mybuf);
}
while(!_magic_lock);
set_kernel_print(&print_usb_ep2);
test_vfs();
*/
// memory area subsystem
mem_area_init();
process_init();
sched_init();
test_process();
printk(LOG_WARNING, "End of init job, sleeping...\n");
while(1)
printk(LOG_WARNING, "IER: 0x%x 0x%x\n", USB.IFR0.BYTE, USB.IFR1.BYTE);
}