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| author | Azael Avalos <coproscefalo@gmail.com> | 2015-03-21 01:55:18 +0300 |
|---|---|---|
| committer | Darren Hart <dvhart@linux.intel.com> | 2015-03-25 20:58:24 +0300 |
| commit | fb42d1f491ebf6bb3e41b4dc93c5a1b1768e0df7 (patch) | |
| tree | 256dbbd8c8ccfad23aeb7e8b27e1958c3897ee90 /drivers/platform | |
| parent | a2b3471b5b13b81c5975d8f88db65694d7b69f56 (diff) | |
| download | linux-fb42d1f491ebf6bb3e41b4dc93c5a1b1768e0df7.tar.xz | |
toshiba_acpi: Fix the enabling of the Special Functions
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 <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.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index 2781b149a95d..17a259eb3eed 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) @@ -2335,6 +2336,20 @@ 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) { |