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path: root/drivers/platform/x86/asus-wmi.c
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Diffstat (limited to 'drivers/platform/x86/asus-wmi.c')
-rw-r--r--drivers/platform/x86/asus-wmi.c84
1 files changed, 16 insertions, 68 deletions
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 18be35fdb381..3f07bbf809ef 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -101,13 +101,6 @@ module_param(fnlock_default, bool, 0444);
#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31
#define ASUS_ACPI_UID_ASUSWMI "ASUSWMI"
-#define ASUS_ACPI_UID_ATK "ATK"
-
-#define WMI_EVENT_QUEUE_SIZE 0x10
-#define WMI_EVENT_QUEUE_END 0x1
-#define WMI_EVENT_MASK 0xFFFF
-/* The WMI hotkey event value is always the same. */
-#define WMI_EVENT_VALUE_ATK 0xFF
#define WMI_EVENT_MASK 0xFFFF
@@ -219,7 +212,6 @@ struct asus_wmi {
int dsts_id;
int spec;
int sfun;
- bool wmi_event_queue;
struct input_dev *inputdev;
struct backlight_device *backlight_device;
@@ -489,7 +481,17 @@ static int asus_wmi_evaluate_method_agfn(const struct acpi_buffer args)
static int asus_wmi_get_devstate(struct asus_wmi *asus, u32 dev_id, u32 *retval)
{
- return asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval);
+ int err;
+
+ err = asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval);
+
+ if (err)
+ return err;
+
+ if (*retval == ~0)
+ return -ENODEV;
+
+ return 0;
}
static int asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
@@ -1620,7 +1622,6 @@ static int asus_wmi_led_init(struct asus_wmi *asus)
if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MICMUTE_LED)) {
asus->micmute_led.name = "platform::micmute";
asus->micmute_led.max_brightness = 1;
- asus->micmute_led.brightness = ledtrig_audio_get(LED_AUDIO_MICMUTE);
asus->micmute_led.brightness_set_blocking = micmute_led_set;
asus->micmute_led.default_trigger = "audio-micmute";
@@ -4020,50 +4021,14 @@ static void asus_wmi_handle_event_code(int code, struct asus_wmi *asus)
static void asus_wmi_notify(u32 value, void *context)
{
struct asus_wmi *asus = context;
- int code;
- int i;
-
- for (i = 0; i < WMI_EVENT_QUEUE_SIZE + 1; i++) {
- code = asus_wmi_get_event_code(value);
- if (code < 0) {
- pr_warn("Failed to get notify code: %d\n", code);
- return;
- }
-
- if (code == WMI_EVENT_QUEUE_END || code == WMI_EVENT_MASK)
- return;
+ int code = asus_wmi_get_event_code(value);
- asus_wmi_handle_event_code(code, asus);
-
- /*
- * Double check that queue is present:
- * ATK (with queue) uses 0xff, ASUSWMI (without) 0xd2.
- */
- if (!asus->wmi_event_queue || value != WMI_EVENT_VALUE_ATK)
- return;
- }
-
- pr_warn("Failed to process event queue, last code: 0x%x\n", code);
-}
-
-static int asus_wmi_notify_queue_flush(struct asus_wmi *asus)
-{
- int code;
- int i;
-
- for (i = 0; i < WMI_EVENT_QUEUE_SIZE + 1; i++) {
- code = asus_wmi_get_event_code(WMI_EVENT_VALUE_ATK);
- if (code < 0) {
- pr_warn("Failed to get event during flush: %d\n", code);
- return code;
- }
-
- if (code == WMI_EVENT_QUEUE_END || code == WMI_EVENT_MASK)
- return 0;
+ if (code < 0) {
+ pr_warn("Failed to get notify code: %d\n", code);
+ return;
}
- pr_warn("Failed to flush event queue\n");
- return -EIO;
+ asus_wmi_handle_event_code(code, asus);
}
/* Sysfs **********************************************************************/
@@ -4303,23 +4268,6 @@ static int asus_wmi_platform_init(struct asus_wmi *asus)
asus->dsts_id = ASUS_WMI_METHODID_DSTS;
}
- /*
- * Some devices can have multiple event codes stored in a queue before
- * the module load if it was unloaded intermittently after calling
- * the INIT method (enables event handling). The WMI notify handler is
- * expected to retrieve all event codes until a retrieved code equals
- * queue end marker (One or Ones). Old codes are flushed from the queue
- * upon module load. Not enabling this when it should be has minimal
- * visible impact so fall back if anything goes wrong.
- */
- wmi_uid = wmi_get_acpi_device_uid(asus->driver->event_guid);
- if (wmi_uid && !strcmp(wmi_uid, ASUS_ACPI_UID_ATK)) {
- dev_info(dev, "Detected ATK, enable event queue\n");
-
- if (!asus_wmi_notify_queue_flush(asus))
- asus->wmi_event_queue = true;
- }
-
/* CWAP allow to define the behavior of the Fn+F2 key,
* this method doesn't seems to be present on Eee PCs */
if (asus->driver->quirks->wapf >= 0)