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
---
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 413af60..c79211a 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -126,6 +126,7 @@ MODULE_LICENSE("GPL");
#define SCI_KBD_ILLUM_STATUS 0x015c
#define SCI_USB_SLEEP_MUSIC0x015e
#define SCI_TOUCHPAD 0x050e
+#define SCI_KBD_FUNCTION_KEYS 0x0522
/* field definitions */
#define HCI_ACCEL_MASK 0x7fff
@@ -192,6 +193,7 @@ 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;
@@ -988,6 +990,47 @@ 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)
@@ -1572,6 +1615,12 @@ 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,
@@ -1598,6 +1647,9 @@ 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,
@@ -1612,6 +1664,7 @@ 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,
};
@@ -2057,6 +2110,46 @@ static ssize_t toshiba_usb_sleep_music_store(struct
device *dev,
return count;
}
+static ssize_t toshiba_kbd_function_keys_show(struct device *dev,
+
