From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752059AbbCTW4A (ORCPT ); Fri, 20 Mar 2015 18:56:00 -0400 Received: from mail-oi0-f42.google.com ([209.85.218.42]:35000 "EHLO mail-oi0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751196AbbCTWz3 (ORCPT ); Fri, 20 Mar 2015 18:55:29 -0400 From: Azael Avalos To: Darren Hart , platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Azael Avalos Subject: [PATCH v2 3/3] toshiba_acpi: Fix the enabling of the Special Functions Date: Fri, 20 Mar 2015 16:55:18 -0600 Message-Id: <1426892118-27678-4-git-send-email-coproscefalo@gmail.com> X-Mailer: git-send-email 2.2.2 In-Reply-To: <1426892118-27678-1-git-send-email-coproscefalo@gmail.com> References: <1426892118-27678-1-git-send-email-coproscefalo@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Some Toshiba laptops with the "Special Functions" feature enabled fail to properly enable such feature unless a specific value is used to enable the hotkey events. This patch adds a new function called "*_enable_special_functions", that simply makes a call to the HCI_HOTKEY_EVENT call, but this time we are using a different parameter to make the "Special Functions" mode work as expected. Signed-off-by: Azael Avalos --- drivers/platform/x86/toshiba_acpi.c | 25 ++++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index d7dac48..49ac73a 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -129,6 +129,7 @@ MODULE_LICENSE("GPL"); #define HCI_ACCEL_MASK 0x7fff #define HCI_HOTKEY_DISABLE 0x0b #define HCI_HOTKEY_ENABLE 0x09 +#define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10 #define HCI_LCD_BRIGHTNESS_BITS 3 #define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS) #define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS) @@ -2334,6 +2335,20 @@ static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev) return 0; } + +static void toshiba_acpi_enable_special_functions(struct toshiba_acpi_dev *dev) +{ + u32 result; + + /* + * Re-activate the hotkeys, but this time, we are using the + * "Special Functions" mode. + */ + result = hci_write1(dev, HCI_HOTKEY_EVENT, + HCI_HOTKEY_SPECIAL_FUNCTIONS); + if (result != TOS_SUCCESS) + pr_err("Could not enable the Special Function mode\n"); +} static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str, struct serio *port) @@ -2638,6 +2653,7 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev) { struct toshiba_acpi_dev *dev; const char *hci_method; + u32 special_functions; u32 dummy; bool bt_present; int ret = 0; @@ -2669,7 +2685,7 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev) * with the new keyboard layout, query for its presence to help * determine the keymap layout to use. */ - ret = toshiba_function_keys_get(dev, &dummy); + ret = toshiba_function_keys_get(dev, &special_functions); dev->kbd_function_keys_supported = !ret; if (toshiba_acpi_setup_keyboard(dev)) @@ -2761,6 +2777,13 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev) ret = get_fan_status(dev, &dummy); dev->fan_supported = !ret; + /* + * Enable the "Special Functions" mode only if they are + * supported and if they are activated. + */ + if (dev->kbd_function_keys_supported && special_functions) + toshiba_acpi_enable_special_functions(dev); + ret = sysfs_create_group(&dev->acpi_dev->dev.kobj, &toshiba_attr_group); if (ret) { -- 2.2.2