Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761755AbbBJDf0 (ORCPT ); Mon, 9 Feb 2015 22:35:26 -0500 Received: from mail-oi0-f54.google.com ([209.85.218.54]:37226 "EHLO mail-oi0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761635AbbBJDfS (ORCPT ); Mon, 9 Feb 2015 22:35:18 -0500 From: Azael Avalos To: Darren Hart , platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Azael Avalos Subject: [PATCH resend 4/6] toshiba_acpi: Add support for Panel Power ON Date: Mon, 9 Feb 2015 20:34:52 -0700 Message-Id: <1423539294-2941-5-git-send-email-coproscefalo@gmail.com> X-Mailer: git-send-email 2.2.2 In-Reply-To: <1423539294-2941-1-git-send-email-coproscefalo@gmail.com> References: <1423539294-2941-1-git-send-email-coproscefalo@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5828 Lines: 185 Toshiba laptops come with a feature called "Panel Open - Power ON", which makes the laptop turn on whenever the LID is opened. This patch adds support for such feature, by creating a sysfs entry named "panel_power_on", accepting only two values, 0 to disable and 1 to enable such feature. Signed-off-by: Azael Avalos --- drivers/platform/x86/toshiba_acpi.c | 98 +++++++++++++++++++++++++++++++++++++ 1 file changed, 98 insertions(+) diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index c79211a..baf3376 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -121,6 +121,7 @@ MODULE_LICENSE("GPL"); #define HCI_KBD_ILLUMINATION 0x0095 #define HCI_ECO_MODE 0x0097 #define HCI_ACCELEROMETER2 0x00a6 +#define SCI_PANEL_POWER_ON 0x010d #define SCI_ILLUMINATION 0x014e #define SCI_USB_SLEEP_CHARGE 0x0150 #define SCI_KBD_ILLUM_STATUS 0x015c @@ -194,6 +195,7 @@ struct toshiba_acpi_dev { unsigned int usb_rapid_charge_supported:1; unsigned int usb_sleep_music_supported:1; unsigned int kbd_function_keys_supported:1; + unsigned int panel_power_on_supported:1; unsigned int sysfs_created:1; struct mutex mutex; @@ -1031,6 +1033,51 @@ static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode) return 0; } +/* Panel Power ON */ +static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state) +{ + u32 result; + + if (!sci_open(dev)) + return -EIO; + + result = sci_read(dev, SCI_PANEL_POWER_ON, state); + sci_close(dev); + if (result == TOS_FAILURE) { + pr_err("ACPI call to get Panel Power ON failed\n"); + return -EIO; + } else if (result == TOS_NOT_SUPPORTED) { + pr_info("Panel Power on not supported\n"); + return -ENODEV; + } else if (result == TOS_INPUT_DATA_ERROR) { + return -EIO; + } + + return 0; +} + +static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state) +{ + u32 result; + + if (!sci_open(dev)) + return -EIO; + + result = sci_write(dev, SCI_PANEL_POWER_ON, state); + sci_close(dev); + if (result == TOS_FAILURE) { + pr_err("ACPI call to set Panel Power ON failed\n"); + return -EIO; + } else if (result == TOS_NOT_SUPPORTED) { + pr_info("Panel Power ON not supported\n"); + return -ENODEV; + } else if (result == TOS_INPUT_DATA_ERROR) { + return -EIO; + } + + return 0; +} + /* Bluetooth rfkill handlers */ static u32 hci_get_bt_present(struct toshiba_acpi_dev *dev, bool *present) @@ -1621,6 +1668,12 @@ static ssize_t toshiba_kbd_function_keys_show(struct device *dev, static ssize_t toshiba_kbd_function_keys_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count); +static ssize_t toshiba_panel_power_on_show(struct device *dev, + struct device_attribute *attr, + char *buf); +static ssize_t toshiba_panel_power_on_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count); static DEVICE_ATTR(version, S_IRUGO, toshiba_version_show, NULL); static DEVICE_ATTR(fan, S_IRUGO | S_IWUSR, @@ -1650,6 +1703,9 @@ static DEVICE_ATTR(usb_sleep_music, S_IRUGO | S_IWUSR, static DEVICE_ATTR(kbd_function_keys, S_IRUGO | S_IWUSR, toshiba_kbd_function_keys_show, toshiba_kbd_function_keys_store); +static DEVICE_ATTR(panel_power_on, S_IRUGO | S_IWUSR, + toshiba_panel_power_on_show, + toshiba_panel_power_on_store); static struct attribute *toshiba_attributes[] = { &dev_attr_version.attr, @@ -1665,6 +1721,7 @@ static struct attribute *toshiba_attributes[] = { &dev_attr_usb_rapid_charge.attr, &dev_attr_usb_sleep_music.attr, &dev_attr_kbd_function_keys.attr, + &dev_attr_panel_power_on.attr, NULL, }; @@ -2150,6 +2207,42 @@ static ssize_t toshiba_kbd_function_keys_store(struct device *dev, return count; } +static ssize_t toshiba_panel_power_on_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); + u32 state; + int ret; + + ret = toshiba_panel_power_on_get(toshiba, &state); + if (ret < 0) + return ret; + + return sprintf(buf, "%d\n", state); +} + +static ssize_t toshiba_panel_power_on_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); + int state; + int ret; + + ret = kstrtoint(buf, 0, &state); + if (ret) + return ret; + if (state != 0 && state != 1) + return -EINVAL; + + ret = toshiba_panel_power_on_set(toshiba, state); + if (ret) + return ret; + + return count; +} + static umode_t toshiba_sysfs_is_visible(struct kobject *kobj, struct attribute *attr, int idx) { @@ -2177,6 +2270,8 @@ static umode_t toshiba_sysfs_is_visible(struct kobject *kobj, exists = (drv->usb_sleep_music_supported) ? true : false; else if (attr == &dev_attr_kbd_function_keys.attr) exists = (drv->kbd_function_keys_supported) ? true : false; + else if (attr == &dev_attr_panel_power_on.attr) + exists = (drv->panel_power_on_supported) ? true : false; return exists ? attr->mode : 0; } @@ -2598,6 +2693,9 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev) ret = toshiba_function_keys_get(dev, &dummy); dev->kbd_function_keys_supported = !ret; + ret = toshiba_panel_power_on_get(dev, &dummy); + dev->panel_power_on_supported = !ret; + /* Determine whether or not BIOS supports fan and video interfaces */ ret = get_video_status(dev, &dummy); -- 2.2.2 -- 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/