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authorGravatar Azael Avalos <coproscefalo@gmail.com> 2015-02-10 21:09:18 -0700
committerGravatar Darren Hart <dvhart@linux.intel.com> 2015-02-11 20:40:48 -0800
commitbae84195b4cd44767fd127bcd4e61830e426bc7f (patch)
treeb5f410b75d12eed9f75964a8cb43a5d23bc69f74 /drivers/platform
parenttoshiba_acpi: Add fan entry to sysfs (diff)
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toshiba_acpi: Add support for Keyboard functions mode
Recent Toshiba laptops that come with the new keyboard layout have the Special Functions (hotkeys) enabled by default, which, in order to access the F{1-12} keys, you need to press the FN-F{1-12} key to access such key. This patch adds support to toggle the Keyboard Functions operation mode by creating the sysfs entry "kbd_functions_keys", accepting only two parameters, 0 to set the "Normal Operation" mode and 1 to set the "Special Functions" mode, however, everytime the mode is toggled, a restart is needed. In the "Normal Operation" mode, the F{1-12} keys are as usual and the hotkeys are accessed via FN-F{1-12}. In the "Special Functions" mode, the F{1-12} keys trigger the hotkey and the F{1-12} keys are accessed via FN-F{1-12}. Signed-off-by: Azael Avalos <coproscefalo@gmail.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/x86/toshiba_acpi.c100
1 files changed, 100 insertions, 0 deletions
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index 47d47b507c5f..ccf628293ef2 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -127,6 +127,7 @@ MODULE_LICENSE("GPL");
#define SCI_KBD_ILLUM_STATUS 0x015c
#define SCI_USB_SLEEP_MUSIC 0x015e
#define SCI_TOUCHPAD 0x050e
+#define SCI_KBD_FUNCTION_KEYS 0x0522
/* field definitions */
#define HCI_ACCEL_MASK 0x7fff
@@ -193,6 +194,7 @@ struct toshiba_acpi_dev {
unsigned int usb_sleep_charge_supported:1;
unsigned int usb_rapid_charge_supported:1;
unsigned int usb_sleep_music_supported:1;
+ unsigned int kbd_function_keys_supported:1;
unsigned int sysfs_created:1;
struct mutex mutex;
@@ -1005,6 +1007,47 @@ static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
return 0;
}
+/* Keyboard function keys */
+static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
+{
+ u32 result;
+
+ if (!sci_open(dev))
+ return -EIO;
+
+ result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
+ sci_close(dev);
+ if (result == TOS_FAILURE || result == TOS_INPUT_DATA_ERROR) {
+ pr_err("ACPI call to get KBD function keys failed\n");
+ return -EIO;
+ } else if (result == TOS_NOT_SUPPORTED) {
+ pr_info("KBD function keys not supported\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
+{
+ u32 result;
+
+ if (!sci_open(dev))
+ return -EIO;
+
+ result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
+ sci_close(dev);
+ if (result == TOS_FAILURE || result == TOS_INPUT_DATA_ERROR) {
+ pr_err("ACPI call to set KBD function keys failed\n");
+ return -EIO;
+ } else if (result == TOS_NOT_SUPPORTED) {
+ pr_info("KBD function keys not supported\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
/* Bluetooth rfkill handlers */
static u32 hci_get_bt_present(struct toshiba_acpi_dev *dev, bool *present)
@@ -1589,6 +1632,12 @@ static ssize_t toshiba_usb_sleep_music_show(struct device *dev,
static ssize_t toshiba_usb_sleep_music_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count);
+static ssize_t toshiba_kbd_function_keys_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf);
+static ssize_t toshiba_kbd_function_keys_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,
@@ -1615,6 +1664,9 @@ static DEVICE_ATTR(usb_rapid_charge, S_IRUGO | S_IWUSR,
static DEVICE_ATTR(usb_sleep_music, S_IRUGO | S_IWUSR,
toshiba_usb_sleep_music_show,
toshiba_usb_sleep_music_store);
+static DEVICE_ATTR(kbd_function_keys, S_IRUGO | S_IWUSR,
+ toshiba_kbd_function_keys_show,
+ toshiba_kbd_function_keys_store);
static struct attribute *toshiba_attributes[] = {
&dev_attr_version.attr,
@@ -1629,6 +1681,7 @@ static struct attribute *toshiba_attributes[] = {
&dev_attr_sleep_functions_on_battery.attr,
&dev_attr_usb_rapid_charge.attr,
&dev_attr_usb_sleep_music.attr,
+ &dev_attr_kbd_function_keys.attr,
NULL,
};
@@ -2074,6 +2127,48 @@ static ssize_t toshiba_usb_sleep_music_store(struct device *dev,
return count;
}
+static ssize_t toshiba_kbd_function_keys_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
+ int mode;
+ int ret;
+
+ ret = toshiba_function_keys_get(toshiba, &mode);
+ if (ret < 0)
+ return ret;
+
+ return sprintf(buf, "%d\n", mode);
+}
+
+static ssize_t toshiba_kbd_function_keys_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
+ int mode;
+ int ret;
+
+ ret = kstrtoint(buf, 0, &mode);
+ if (ret)
+ return ret;
+ /* Check for the function keys mode where:
+ * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
+ * 1 - Special functions (Opposite of the above setting)
+ */
+ if (mode != 0 && mode != 1)
+ return -EINVAL;
+
+ ret = toshiba_function_keys_set(toshiba, mode);
+ if (ret)
+ return ret;
+
+ pr_info("Reboot for changes to KBD Function Keys to take effect");
+
+ return count;
+}
+
static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
struct attribute *attr, int idx)
{
@@ -2099,6 +2194,8 @@ static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
exists = (drv->usb_rapid_charge_supported) ? true : false;
else if (attr == &dev_attr_usb_sleep_music.attr)
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;
return exists ? attr->mode : 0;
}
@@ -2517,6 +2614,9 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev)
ret = toshiba_usb_sleep_music_get(dev, &dummy);
dev->usb_sleep_music_supported = !ret;
+ ret = toshiba_function_keys_get(dev, &dummy);
+ dev->kbd_function_keys_supported = !ret;
+
/* Determine whether or not BIOS supports fan and video interfaces */
ret = get_video_status(dev, &dummy);