int pm_prepare_console(void)
{
orig_loglevel = console_loglevel;
console_loglevel = new_loglevel;
#ifdef SUSPEND_CONSOLE
acquire_console_sem();
orig_fgconsole = fg_console;
if (vc_allocate(SUSPEND_CONSOLE)) {
/* we can't have a free VC for now. Too bad,
* we don't want to mess the screen for now. */
release_console_sem();
return 1;
}
set_console(SUSPEND_CONSOLE);
release_console_sem();
if (vt_waitactive(SUSPEND_CONSOLE)) {
pr_debug("Suspend: Can't switch VCs.");
return 1;
}
orig_kmsg = kmsg_redirect;
kmsg_redirect = SUSPEND_CONSOLE;
#endif
return 0;
}
static void console_early_suspend(struct early_suspend *h)
{
#ifdef CONFIG_SHLCDC_BOARD
char ev[128];
#endif
acquire_console_sem();
orig_fgconsole = fg_console;
if (vc_allocate(EARLY_SUSPEND_CONSOLE))
goto err;
if (set_console(EARLY_SUSPEND_CONSOLE))
goto err;
#ifdef CONFIG_SHLCDC_BOARD
vt_waitactive_queue((void *)ev);
#endif
release_console_sem();
#ifdef CONFIG_SHLCDC_BOARD
if (vt_waitactive_wait_dequeue((void *)ev, EARLY_SUSPEND_CONSOLE + 1))
#else
if (vt_waitactive(EARLY_SUSPEND_CONSOLE + 1))
#endif
pr_warning("console_early_suspend: Can't switch VCs.\n");
return;
err:
pr_warning("console_early_suspend: Can't set console\n");
release_console_sem();
}
static void console_early_suspend(struct early_suspend *h)
{
acquire_console_sem();
orig_fgconsole = fg_console;
if (vc_allocate(EARLY_SUSPEND_CONSOLE))
goto err;
if (set_console(EARLY_SUSPEND_CONSOLE))
goto err;
release_console_sem();
if (vt_waitactive(EARLY_SUSPEND_CONSOLE))
pr_warning("console_early_suspend: Can't switch VCs.\n");
return;
err:
pr_warning("console_early_suspend: Can't set console\n");
release_console_sem();
}
static void console_early_suspend(struct early_suspend *h)
{
printk("[KENEL] %s, %d \n", __FUNCTION__, __LINE__);
acquire_console_sem();
orig_fgconsole = fg_console;
if (vc_allocate(EARLY_SUSPEND_CONSOLE))
goto err;
if (set_console(EARLY_SUSPEND_CONSOLE))
goto err;
release_console_sem();
if (vt_waitactive(EARLY_SUSPEND_CONSOLE + 1))
pr_warning("console_early_suspend: Can't switch VCs.\n");
return;
err:
pr_warning("console_early_suspend: Can't set console\n");
release_console_sem();
}
int pm_prepare_console(void)
{
acquire_console_sem();
if (disable_vt_switch) {
release_console_sem();
return 0;
}
orig_fgconsole = fg_console;
if (vc_allocate(SUSPEND_CONSOLE)) {
/* we can't have a free VC for now. Too bad,
* we don't want to mess the screen for now. */
release_console_sem();
return 1;
}
if (set_console(SUSPEND_CONSOLE)) {
/*
* We're unable to switch to the SUSPEND_CONSOLE.
* Let the calling function know so it can decide
* what to do.
*/
release_console_sem();
return 1;
}
release_console_sem();
if (vt_waitactive(SUSPEND_CONSOLE)) {
pr_debug("Suspend: Can't switch VCs.");
return 1;
}
orig_kmsg = kmsg_redirect;
kmsg_redirect = SUSPEND_CONSOLE;
return 0;
}
static void console_early_suspend(struct early_suspend *h)
{
printk("%s / acquire_console_sem\n", __func__);
acquire_console_sem();
orig_fgconsole = fg_console;
printk("%s / alloc\n", __func__);
if (vc_allocate(EARLY_SUSPEND_CONSOLE))
goto err;
printk("%s / set_console\n", __func__);
if (set_console(EARLY_SUSPEND_CONSOLE))
goto err;
printk("%s / release_console_sem\n", __func__);
release_console_sem();
printk("%s / vt_waitactive\n", __func__);
if (vt_waitactive(EARLY_SUSPEND_CONSOLE + 1))
pr_warning("console_early_suspend: Can't switch VCs.\n");
printk("%s / end\n", __func__);
return;
err:
pr_warning("console_early_suspend: Can't set console\n");
release_console_sem();
}