From patchwork Mon Mar 2 13:45:27 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bastien Nocera X-Patchwork-Id: 5913101 Return-Path: X-Original-To: patchwork-linux-input@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id B3C859F373 for ; Mon, 2 Mar 2015 13:46:03 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C7A4F20211 for ; Mon, 2 Mar 2015 13:46:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D10262018E for ; Mon, 2 Mar 2015 13:46:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754215AbbCBNpe (ORCPT ); Mon, 2 Mar 2015 08:45:34 -0500 Received: from relay5-d.mail.gandi.net ([217.70.183.197]:34006 "EHLO relay5-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754172AbbCBNpa (ORCPT ); Mon, 2 Mar 2015 08:45:30 -0500 Received: from mfilter10-d.gandi.net (mfilter10-d.gandi.net [217.70.178.139]) by relay5-d.mail.gandi.net (Postfix) with ESMTP id A238041C05A; Mon, 2 Mar 2015 14:45:29 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at mfilter10-d.gandi.net Received: from relay5-d.mail.gandi.net ([217.70.183.197]) by mfilter10-d.gandi.net (mfilter10-d.gandi.net [10.0.15.180]) (amavisd-new, port 10024) with ESMTP id l9t4IMOQNM6c; Mon, 2 Mar 2015 14:45:28 +0100 (CET) X-Originating-IP: 83.155.44.161 Received: from nuvo (mon69-7-83-155-44-161.fbx.proxad.net [83.155.44.161]) (Authenticated sender: hadess@hadess.net) by relay5-d.mail.gandi.net (Postfix) with ESMTPSA id 7412041C05D; Mon, 2 Mar 2015 14:45:27 +0100 (CET) Message-ID: <1425303927.16791.34.camel@hadess.net> Subject: [PATCH 3/4] thinkpad_acpi: Add adaptive_kbd_mode sysfs attr From: Bastien Nocera To: Henrique de Moraes Holschuh , Darren Hart , ibm-acpi-devel@lists.sourceforge.net, platform-driver-x86@vger.kernel.org, "linux-kernel@vger.kernel.org" , linux-input , Jiri Kosina Date: Mon, 02 Mar 2015 14:45:27 +0100 X-Mailer: Evolution 3.12.10 (3.12.10-1.fc21) Mime-Version: 1.0 Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add a sysfs attribute to allow privileged users to change the keyboard mode. This could be used by desktop environments to change the keyboard mode depending on the application focused, as the Windows application does. Signed-off-by: Bastien Nocera Acked-by: Henrique de Moraes Holschuh --- Documentation/laptops/thinkpad-acpi.txt | 18 +++++++++ drivers/platform/x86/thinkpad_acpi.c | 69 ++++++++++++++++++++++++++++----- 2 files changed, 78 insertions(+), 9 deletions(-) diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt index fc04c14..72a150d 100644 --- a/Documentation/laptops/thinkpad-acpi.txt +++ b/Documentation/laptops/thinkpad-acpi.txt @@ -1355,6 +1355,24 @@ Sysfs notes: rfkill controller switch "tpacpi_uwb_sw": refer to Documentation/rfkill.txt for details. +Adaptive keyboard +----------------- + +sysfs device attribute: adaptive_kbd_mode + +This sysfs attribute controls the keyboard "face" that will be shown on the +Lenovo X1 Carbon 2nd gen (2014)'s adaptive keyboard. The value can be read +and set. + +1 = Home mode +2 = Web-browser mode +3 = Web-conference mode +4 = Function mode +5 = Layflat mode + +For more details about which buttons will appear depending on the mode, please +review the laptop's user guide: +http://www.lenovo.com/shop/americas/content/user_guides/x1carbon_2_ug_en.pdf Multiple Commands, Module Parameters ------------------------------------ diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 5dea4c2..ae528cf 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -2918,6 +2918,57 @@ static void hotkey_wakeup_hotunplug_complete_notify_change(void) "wakeup_hotunplug_complete"); } +/* sysfs adaptive kbd mode --------------------------------------------- */ + +static int adaptive_keyboard_get_mode(void); +static int adaptive_keyboard_set_mode(int new_mode); + +enum ADAPTIVE_KEY_MODE { + HOME_MODE, + WEB_BROWSER_MODE, + WEB_CONFERENCE_MODE, + FUNCTION_MODE, + LAYFLAT_MODE +}; + +static ssize_t adaptive_kbd_mode_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + u32 current_mode; + + current_mode = adaptive_keyboard_get_mode(); + if (current_mode < 0) + return current_mode; + + return snprintf(buf, PAGE_SIZE, "%d\n", current_mode); +} + +static ssize_t adaptive_kbd_mode_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + unsigned long t; + int res; + + if (parse_strtoul(buf, LAYFLAT_MODE, &t)) + return -EINVAL; + + res = adaptive_keyboard_set_mode(t); + return (res < 0) ? res : count; +} + +static DEVICE_ATTR_RW(adaptive_kbd_mode); + +static struct attribute *adaptive_kbd_attributes[] = { + &dev_attr_adaptive_kbd_mode.attr, + NULL +}; + +static const struct attribute_group adaptive_kbd_attr_group = { + .attrs = adaptive_kbd_attributes, +}; + /* --------------------------------------------------------------------- */ static struct attribute *hotkey_attributes[] __initdata = { @@ -3233,8 +3284,13 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) * Lenovo Carbon X1 2014 (2nd Gen). */ if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { - if ((hkeyv >> 8) == 2) + if ((hkeyv >> 8) == 2) { tp_features.has_adaptive_kbd = true; + res = sysfs_create_group(&tpacpi_pdev->dev.kobj, + &adaptive_kbd_attr_group); + if (res) + goto err_exit; + } } quirks = tpacpi_check_quirks(tpacpi_hotkey_qtable, @@ -3447,6 +3503,9 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) err_exit: delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); + sysfs_remove_group(&tpacpi_pdev->dev.kobj, + &adaptive_kbd_attr_group); + hotkey_dev_attributes = NULL; return (res < 0) ? res : 1; @@ -3459,14 +3518,6 @@ err_exit: * Will consider support rest of modes in future. * */ -enum ADAPTIVE_KEY_MODE { - HOME_MODE, - WEB_BROWSER_MODE, - WEB_CONFERENCE_MODE, - FUNCTION_MODE, - LAYFLAT_MODE -}; - static const int adaptive_keyboard_modes[] = { HOME_MODE, /* WEB_BROWSER_MODE = 2,