From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 28 Aug 2002 18:14:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 28 Aug 2002 18:14:59 -0400 Received: from [195.39.17.254] ([195.39.17.254]:11136 "EHLO Elf.ucw.cz") by vger.kernel.org with ESMTP id ; Wed, 28 Aug 2002 18:14:57 -0400 Date: Thu, 29 Aug 2002 00:16:45 +0200 From: Pavel Machek To: vojtech@ucw.cz, kernel list Subject: Blank now key Message-ID: <20020828221644.GA30122@elf.ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.3.28i X-Warning: Reading this can be dangerous to your mental health. Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! Being able to "blank now" is very important for handheld devices (where screen can eat more than 50% of total power), and it is just nice everywhere else (also saves a little power). Please apply. Pavel --- clean/drivers/char/keyboard.c Wed Aug 28 22:38:44 2002 +++ linux/drivers/char/keyboard.c Wed Aug 28 23:03:43 2002 @@ -20,6 +20,7 @@ * parts by Geert Uytterhoeven, May 1997 * * 27-05-97: Added support for the Magic SysRq Key (Martin Mares) + * 29-07-97: Added blank console key (Pavel Machek) * 30-07-98: Dead keys redone, aeb@cwi.nl. * 21-08-02: Converted to input API, major cleanup. (Vojtech Pavlik) */ @@ -88,7 +89,8 @@ fn_show_state, fn_send_intr, fn_lastcons, fn_caps_toggle,\ fn_num, fn_hold, fn_scroll_forw, fn_scroll_back,\ fn_boot_it, fn_caps_on, fn_compose, fn_SAK,\ - fn_dec_console, fn_inc_console, fn_spawn_con, fn_bare_num + fn_dec_console, fn_inc_console, fn_spawn_con, fn_bare_num, \ + fn_blank_now typedef void (fn_handler_fn)(struct vc_data *vc); static fn_handler_fn FN_HANDLERS; @@ -310,6 +312,25 @@ con_schedule_flip(tty); } +static void blank_now_do(unsigned long unused) +{ + do_poke_blanked_console = 0; + do_blank_screen(0); +} + +static struct timer_list blank_now_timer; + +static void fn_blank_now(struct vc_data *vc) +{ + /* You ask why we have our own timer here? Well, it is because + we do not want user's release of keys to unblank + immediately. Even if we correctly guessed what is press and + what is release, thinkpad's broken bios will turn on + backlight for us... */ + blank_now_timer.expires = jiffies + HZ; + add_timer(&blank_now_timer); +} + static void applkey(struct vc_data *vc, int key, char mode) { static char buf[] = { 0x1b, 'O', 0x00, 0x00 }; @@ -1169,6 +1209,9 @@ int __init kbd_init(void) { int i; + + init_timer(&blank_now_timer); + blank_now_timer.function = blank_now_do; kbd0.ledflagstate = kbd0.default_ledflagstate = KBD_DEFLEDS; kbd0.ledmode = LED_SHOW_FLAGS; -- Worst form of spam? Adding advertisment signatures ala sourceforge.net. What goes next? Inserting advertisment *into* email?