Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755101AbbBTOqX (ORCPT ); Fri, 20 Feb 2015 09:46:23 -0500 Received: from relay5-d.mail.gandi.net ([217.70.183.197]:38717 "EHLO relay5-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754661AbbBTOqV (ORCPT ); Fri, 20 Feb 2015 09:46:21 -0500 X-Originating-IP: 83.155.44.161 Message-ID: <1424443462.22910.15.camel@hadess.net> Subject: [PATCH 3/7] 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@vger.kernel.org, Jiri Kosina Date: Fri, 20 Feb 2015 15:44:22 +0100 Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.12.10 (3.12.10-1.fc21) Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3367 Lines: 121 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 --- drivers/platform/x86/thinkpad_acpi.c | 69 +++++++++++++++++++++++++++++++----- 1 file changed, 60 insertions(+), 9 deletions(-) diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index d395d3f..2030c54 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -2917,6 +2917,57 @@ 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 = { @@ -3232,8 +3283,13 @@ 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, @@ -3446,6 +3502,9 @@ 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; @@ -3458,14 +3517,6 @@ 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 -}; - const int adaptive_keyboard_modes[] = { HOME_MODE, /* WEB_BROWSER_MODE = 2, -- 2.1.0 -- 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/