Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262648AbUKXNWL (ORCPT ); Wed, 24 Nov 2004 08:22:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262688AbUKXNUN (ORCPT ); Wed, 24 Nov 2004 08:20:13 -0500 Received: from pop5-1.us4.outblaze.com ([205.158.62.125]:58516 "HELO pop5-1.us4.outblaze.com") by vger.kernel.org with SMTP id S262648AbUKXNCn (ORCPT ); Wed, 24 Nov 2004 08:02:43 -0500 Subject: Suspend 2 merge: 24/51: Keyboard and serial console hooks. From: Nigel Cunningham Reply-To: ncunningham@linuxmail.org To: Linux Kernel Mailing List In-Reply-To: <1101292194.5805.180.camel@desktop.cunninghams> References: <1101292194.5805.180.camel@desktop.cunninghams> Content-Type: text/plain Message-Id: <1101296414.5805.286.camel@desktop.cunninghams> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6-1mdk Date: Wed, 24 Nov 2004 23:59:02 +1100 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2387 Lines: 67 Here we add simple hooks so that the user can interact with suspend while it is running. (Hmm. The serial console condition could be simplified :>). The hooks allow you to do such things as: - cancel suspending - change the amount of detail of debugging info shown - change what debugging info is shown - pause the process - single step - toggle rebooting instead of powering down diff -ruN 702-keyboard-and-8250-hooks-old/drivers/char/keyboard.c 702-keyboard-and-8250-hooks-new/drivers/char/keyboard.c --- 702-keyboard-and-8250-hooks-old/drivers/char/keyboard.c 2004-11-24 18:50:00.959995424 +1100 +++ 702-keyboard-and-8250-hooks-new/drivers/char/keyboard.c 2004-11-24 18:03:32.040404608 +1100 @@ -33,6 +33,7 @@ #include #include #include +#include #include #include @@ -1091,6 +1092,10 @@ return; } #endif + if (down && (test_suspend_state(SUSPEND_RUNNING))) { + suspend_handle_keypress(keycode, SUSPEND_KEY_KEYBOARD); + return; + } #if defined(CONFIG_SPARC32) || defined(CONFIG_SPARC64) if (keycode == KEY_A && sparc_l1_a_state) { sparc_l1_a_state = 0; diff -ruN 702-keyboard-and-8250-hooks-old/drivers/serial/8250.c 702-keyboard-and-8250-hooks-new/drivers/serial/8250.c --- 702-keyboard-and-8250-hooks-old/drivers/serial/8250.c 2004-11-24 18:50:00.962994968 +1100 +++ 702-keyboard-and-8250-hooks-new/drivers/serial/8250.c 2004-11-24 18:49:53.882071432 +1100 @@ -39,6 +39,7 @@ #include #include #include +#include #include #include @@ -1068,6 +1069,15 @@ } if (uart_handle_sysrq_char(&up->port, ch, regs)) goto ignore_char; + +#if defined(CONFIG_SERIAL_CORE_CONSOLE) && defined(CONFIG_SOFTWARE_SUSPEND2) + if (test_suspend_state(SUSPEND_SANITY_CHECK_PROMPT) || + test_suspend_state(SUSPEND_RUNNING)) { + suspend_handle_keypress(ch, SUSPEND_KEY_SERIAL); + goto ignore_char; + } +#endif + if ((lsr & up->port.ignore_status_mask) == 0) { tty_insert_flip_char(tty, ch, flag); } - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/