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msi-wmi: Introduced quirk_last_pressed 

Introduced quirk_last_pressed variable that would indicate if
last_pressed is used or not. Also converted last_pressed to simple
variable in order to allow keymap to be non-contiguous.

Signed-off-by: Maxim Mikityanskiy <maxtram95@gmail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
This commit is contained in:
Maxim Mikityanskiy 2012-12-15 19:31:35 +02:00 committed by Matthew Garrett
parent da8506288f
commit fedda8e738
1 changed files with 27 additions and 25 deletions
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52
drivers/platform/x86/msi-wmi.c
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@ -43,8 +43,7 @@ MODULE_ALIAS("wmi:" MSIWMI_BIOS_GUID);
MODULE_ALIAS("wmi:" MSIWMI_EVENT_GUID);
enum msi_scancodes {
MSI_SCANCODE_BASE = 0xD0,
MSI_KEY_BRIGHTNESSUP = MSI_SCANCODE_BASE,
MSI_KEY_BRIGHTNESSUP = 0xD0,
MSI_KEY_BRIGHTNESSDOWN,
MSI_KEY_VOLUMEUP,
MSI_KEY_VOLUMEDOWN,
@ -58,7 +57,9 @@ static struct key_entry msi_wmi_keymap[] = {
{ KE_KEY, MSI_KEY_MUTE, {KEY_MUTE} },
{ KE_END, 0 }
};
static ktime_t last_pressed[ARRAY_SIZE(msi_wmi_keymap) - 1];
static ktime_t last_pressed;
static bool quirk_last_pressed;
static const char *event_wmi_guid;
@ -153,7 +154,6 @@ static void msi_wmi_notify(u32 value, void *context)
struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
static struct key_entry *key;
union acpi_object *obj;
ktime_t cur;
acpi_status status;
status = wmi_get_event_data(value, &response);
@ -169,12 +169,15 @@ static void msi_wmi_notify(u32 value, void *context)
pr_debug("Eventcode: 0x%x\n", eventcode);
key = sparse_keymap_entry_from_scancode(msi_wmi_input_dev,
eventcode);
if (key) {
ktime_t diff;
cur = ktime_get_real();
diff = ktime_sub(cur, last_pressed[key->code -
MSI_SCANCODE_BASE]);
/* Ignore event if the same event happened in a 50 ms
if (!key) {
pr_info("Unknown key pressed - %x\n", eventcode);
goto msi_wmi_notify_exit;
}
if (quirk_last_pressed) {
ktime_t cur = ktime_get_real();
ktime_t diff = ktime_sub(cur, last_pressed);
/* Ignore event if any event happened in a 50 ms
timeframe -> Key press may result in 10-20 GPEs */
if (ktime_to_us(diff) < 1000 * 50) {
pr_debug("Suppressed key event 0x%X - "
@ -182,21 +185,19 @@ static void msi_wmi_notify(u32 value, void *context)
key->code, ktime_to_us(diff));
goto msi_wmi_notify_exit;
}
last_pressed[key->code - MSI_SCANCODE_BASE] = cur;
last_pressed = cur;
}
if (key->type == KE_KEY &&
/* Brightness is served via acpi video driver */
(backlight ||
(key->code != MSI_KEY_BRIGHTNESSUP &&
key->code != MSI_KEY_BRIGHTNESSDOWN))) {
pr_debug("Send key: 0x%X - "
"Input layer keycode: %d\n",
key->code, key->keycode);
sparse_keymap_report_entry(msi_wmi_input_dev,
key, 1, true);
}
} else
pr_info("Unknown key pressed - %x\n", eventcode);
if (key->type == KE_KEY &&
/* Brightness is served via acpi video driver */
(backlight ||
(key->code != MSI_KEY_BRIGHTNESSUP &&
key->code != MSI_KEY_BRIGHTNESSDOWN))) {
pr_debug("Send key: 0x%X - Input layer keycode: %d\n",
key->code, key->keycode);
sparse_keymap_report_entry(msi_wmi_input_dev, key, 1,
true);
}
} else
pr_info("Unknown event received\n");
@ -250,7 +251,7 @@ static int __init msi_wmi_input_setup(void)
if (err)
goto err_free_keymap;
memset(last_pressed, 0, sizeof(last_pressed));
last_pressed = ktime_set(0, 0);
return 0;
@ -281,6 +282,7 @@ static int __init msi_wmi_init(void)
pr_debug("Event handler installed\n");
event_wmi_guid = MSIWMI_EVENT_GUID;
quirk_last_pressed = true;
}
if (wmi_has_guid(MSIWMI_BIOS_GUID) && !acpi_video_backlight_support()) {