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path: root/drivers/platform/x86/msi-wmi.c
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Diffstat (limited to 'drivers/platform/x86/msi-wmi.c')
-rw-r--r--drivers/platform/x86/msi-wmi.c224
1 files changed, 146 insertions, 78 deletions
diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c
index 2264331bd48e..70222f265f68 100644
--- a/drivers/platform/x86/msi-wmi.c
+++ b/drivers/platform/x86/msi-wmi.c
@@ -34,29 +34,65 @@ MODULE_AUTHOR("Thomas Renninger <trenn@suse.de>");
MODULE_DESCRIPTION("MSI laptop WMI hotkeys driver");
MODULE_LICENSE("GPL");
-MODULE_ALIAS("wmi:551A1F84-FBDD-4125-91DB-3EA8F44F1D45");
-MODULE_ALIAS("wmi:B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2");
-
#define DRV_NAME "msi-wmi"
#define MSIWMI_BIOS_GUID "551A1F84-FBDD-4125-91DB-3EA8F44F1D45"
-#define MSIWMI_EVENT_GUID "B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2"
-
-#define SCANCODE_BASE 0xD0
-#define MSI_WMI_BRIGHTNESSUP SCANCODE_BASE
-#define MSI_WMI_BRIGHTNESSDOWN (SCANCODE_BASE + 1)
-#define MSI_WMI_VOLUMEUP (SCANCODE_BASE + 2)
-#define MSI_WMI_VOLUMEDOWN (SCANCODE_BASE + 3)
-#define MSI_WMI_MUTE (SCANCODE_BASE + 4)
+#define MSIWMI_MSI_EVENT_GUID "B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2"
+#define MSIWMI_WIND_EVENT_GUID "5B3CC38A-40D9-7245-8AE6-1145B751BE3F"
+
+MODULE_ALIAS("wmi:" MSIWMI_BIOS_GUID);
+MODULE_ALIAS("wmi:" MSIWMI_MSI_EVENT_GUID);
+MODULE_ALIAS("wmi:" MSIWMI_WIND_EVENT_GUID);
+
+enum msi_scancodes {
+ /* Generic MSI keys (not present on MSI Wind) */
+ MSI_KEY_BRIGHTNESSUP = 0xD0,
+ MSI_KEY_BRIGHTNESSDOWN,
+ MSI_KEY_VOLUMEUP,
+ MSI_KEY_VOLUMEDOWN,
+ MSI_KEY_MUTE,
+ /* MSI Wind keys */
+ WIND_KEY_TOUCHPAD = 0x08, /* Fn+F3 touchpad toggle */
+ WIND_KEY_BLUETOOTH = 0x56, /* Fn+F11 Bluetooth toggle */
+ WIND_KEY_CAMERA, /* Fn+F6 webcam toggle */
+ WIND_KEY_WLAN = 0x5f, /* Fn+F11 Wi-Fi toggle */
+ WIND_KEY_TURBO, /* Fn+F10 turbo mode toggle */
+ WIND_KEY_ECO = 0x69, /* Fn+F10 ECO mode toggle */
+};
static struct key_entry msi_wmi_keymap[] = {
- { KE_KEY, MSI_WMI_BRIGHTNESSUP, {KEY_BRIGHTNESSUP} },
- { KE_KEY, MSI_WMI_BRIGHTNESSDOWN, {KEY_BRIGHTNESSDOWN} },
- { KE_KEY, MSI_WMI_VOLUMEUP, {KEY_VOLUMEUP} },
- { KE_KEY, MSI_WMI_VOLUMEDOWN, {KEY_VOLUMEDOWN} },
- { KE_KEY, MSI_WMI_MUTE, {KEY_MUTE} },
- { KE_END, 0}
+ { KE_KEY, MSI_KEY_BRIGHTNESSUP, {KEY_BRIGHTNESSUP} },
+ { KE_KEY, MSI_KEY_BRIGHTNESSDOWN, {KEY_BRIGHTNESSDOWN} },
+ { KE_KEY, MSI_KEY_VOLUMEUP, {KEY_VOLUMEUP} },
+ { KE_KEY, MSI_KEY_VOLUMEDOWN, {KEY_VOLUMEDOWN} },
+ { KE_KEY, MSI_KEY_MUTE, {KEY_MUTE} },
+
+ /* These keys work without WMI. Ignore them to avoid double keycodes */
+ { KE_IGNORE, WIND_KEY_TOUCHPAD, {KEY_TOUCHPAD_TOGGLE} },
+ { KE_IGNORE, WIND_KEY_BLUETOOTH, {KEY_BLUETOOTH} },
+ { KE_IGNORE, WIND_KEY_CAMERA, {KEY_CAMERA} },
+ { KE_IGNORE, WIND_KEY_WLAN, {KEY_WLAN} },
+
+ /* These are unknown WMI events found on MSI Wind */
+ { KE_IGNORE, 0x00 },
+ { KE_IGNORE, 0x62 },
+ { KE_IGNORE, 0x63 },
+
+ /* These are MSI Wind keys that should be handled via WMI */
+ { KE_KEY, WIND_KEY_TURBO, {KEY_PROG1} },
+ { KE_KEY, WIND_KEY_ECO, {KEY_PROG2} },
+
+ { KE_END, 0 }
+};
+
+static ktime_t last_pressed;
+
+static const struct {
+ const char *guid;
+ bool quirk_last_pressed;
+} *event_wmi, event_wmis[] = {
+ { MSIWMI_MSI_EVENT_GUID, true },
+ { MSIWMI_WIND_EVENT_GUID, false },
};
-static ktime_t last_pressed[ARRAY_SIZE(msi_wmi_keymap) - 1];
static struct backlight_device *backlight;
@@ -149,7 +185,6 @@ 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);
@@ -165,39 +200,67 @@ 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 -
- 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 (event_wmi->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 - "
"Last press was %lld us ago\n",
key->code, ktime_to_us(diff));
- return;
- }
- last_pressed[key->code - SCANCODE_BASE] = cur;
-
- if (key->type == KE_KEY &&
- /* Brightness is served via acpi video driver */
- (!acpi_video_backlight_support() ||
- (key->code != MSI_WMI_BRIGHTNESSUP &&
- key->code != MSI_WMI_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);
+ goto msi_wmi_notify_exit;
}
- } else
- pr_info("Unknown key pressed - %x\n", eventcode);
+ 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 event received\n");
+
+msi_wmi_notify_exit:
kfree(response.pointer);
}
+static int __init msi_wmi_backlight_setup(void)
+{
+ int err;
+ struct backlight_properties props;
+
+ memset(&props, 0, sizeof(struct backlight_properties));
+ props.type = BACKLIGHT_PLATFORM;
+ props.max_brightness = ARRAY_SIZE(backlight_map) - 1;
+ backlight = backlight_device_register(DRV_NAME, NULL, NULL,
+ &msi_backlight_ops,
+ &props);
+ if (IS_ERR(backlight))
+ return PTR_ERR(backlight);
+
+ err = bl_get(NULL);
+ if (err < 0) {
+ backlight_device_unregister(backlight);
+ return err;
+ }
+
+ backlight->props.brightness = err;
+
+ return 0;
+}
+
static int __init msi_wmi_input_setup(void)
{
int err;
@@ -219,7 +282,7 @@ 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;
@@ -233,61 +296,66 @@ err_free_dev:
static int __init msi_wmi_init(void)
{
int err;
+ int i;
- if (!wmi_has_guid(MSIWMI_EVENT_GUID)) {
- pr_err("This machine doesn't have MSI-hotkeys through WMI\n");
- return -ENODEV;
- }
- err = wmi_install_notify_handler(MSIWMI_EVENT_GUID,
- msi_wmi_notify, NULL);
- if (ACPI_FAILURE(err))
- return -EINVAL;
+ for (i = 0; i < ARRAY_SIZE(event_wmis); i++) {
+ if (!wmi_has_guid(event_wmis[i].guid))
+ continue;
- err = msi_wmi_input_setup();
- if (err)
- goto err_uninstall_notifier;
-
- if (!acpi_video_backlight_support()) {
- struct backlight_properties props;
- memset(&props, 0, sizeof(struct backlight_properties));
- props.type = BACKLIGHT_PLATFORM;
- props.max_brightness = ARRAY_SIZE(backlight_map) - 1;
- backlight = backlight_device_register(DRV_NAME, NULL, NULL,
- &msi_backlight_ops,
- &props);
- if (IS_ERR(backlight)) {
- err = PTR_ERR(backlight);
+ err = msi_wmi_input_setup();
+ if (err) {
+ pr_err("Unable to setup input device\n");
+ return err;
+ }
+
+ err = wmi_install_notify_handler(event_wmis[i].guid,
+ msi_wmi_notify, NULL);
+ if (ACPI_FAILURE(err)) {
+ pr_err("Unable to setup WMI notify handler\n");
goto err_free_input;
}
- err = bl_get(NULL);
- if (err < 0)
- goto err_free_backlight;
+ pr_debug("Event handler installed\n");
+ event_wmi = &event_wmis[i];
+ break;
+ }
- backlight->props.brightness = err;
+ if (wmi_has_guid(MSIWMI_BIOS_GUID) && !acpi_video_backlight_support()) {
+ err = msi_wmi_backlight_setup();
+ if (err) {
+ pr_err("Unable to setup backlight device\n");
+ goto err_uninstall_handler;
+ }
+ pr_debug("Backlight device created\n");
+ }
+
+ if (!event_wmi && !backlight) {
+ pr_err("This machine doesn't have neither MSI-hotkeys nor backlight through WMI\n");
+ return -ENODEV;
}
- pr_debug("Event handler installed\n");
return 0;
-err_free_backlight:
- backlight_device_unregister(backlight);
+err_uninstall_handler:
+ if (event_wmi)
+ wmi_remove_notify_handler(event_wmi->guid);
err_free_input:
- sparse_keymap_free(msi_wmi_input_dev);
- input_unregister_device(msi_wmi_input_dev);
-err_uninstall_notifier:
- wmi_remove_notify_handler(MSIWMI_EVENT_GUID);
+ if (event_wmi) {
+ sparse_keymap_free(msi_wmi_input_dev);
+ input_unregister_device(msi_wmi_input_dev);
+ }
return err;
}
static void __exit msi_wmi_exit(void)
{
- if (wmi_has_guid(MSIWMI_EVENT_GUID)) {
- wmi_remove_notify_handler(MSIWMI_EVENT_GUID);
+ if (event_wmi) {
+ wmi_remove_notify_handler(event_wmi->guid);
sparse_keymap_free(msi_wmi_input_dev);
input_unregister_device(msi_wmi_input_dev);
- backlight_device_unregister(backlight);
}
+ if (backlight)
+ backlight_device_unregister(backlight);
}
module_init(msi_wmi_init);