linux-kernel - [PATCH 2/3] platform/x86: dell-wmi: add new keymap type 0x0012

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Date:   Mon,  8 Jun 2020 00:22:25 -0400
From:   Y Paritcher <y.linux@...itcher.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        Matthew Garrett <mjg59@...f.ucam.org>,
        Pali Rohár <pali@...nel.org>
Subject: [PATCH 2/3] platform/x86: dell-wmi: add new keymap type 0x0012

Ignore events with a type of 0x0012 and a code of 0xe035,
this silences the following messages being logged when
pressing the Fn-lock key on a Dell Inspiron 5593:

dell_wmi: Unknown WMI event type 0x12
dell_wmi: Unknown key with type 0x0012 and code 0xe035 pressed

Signed-off-by: Y Paritcher <y.linux@...itcher.com>
---
 drivers/platform/x86/dell-wmi.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c
index 0b4f72f923cd..f37e7e9093c2 100644
--- a/drivers/platform/x86/dell-wmi.c
+++ b/drivers/platform/x86/dell-wmi.c
@@ -334,6 +334,14 @@ static const struct key_entry dell_wmi_keymap_type_0011[] = {
 	{ KE_IGNORE, KBD_LED_AUTO_100_TOKEN, { KEY_RESERVED } },
 };
 
+/*
+ * Keymap for WMI events of type 0x0012
+ */
+static const struct key_entry dell_wmi_keymap_type_0012[] = {
+	/* Fn-lock button pressed */
+	{ KE_IGNORE, 0xe035, { KEY_RESERVED } },
+};
+
 static void dell_wmi_process_key(struct wmi_device *wdev, int type, int code)
 {
 	struct dell_wmi_priv *priv = dev_get_drvdata(&wdev->dev);
@@ -425,6 +433,7 @@ static void dell_wmi_notify(struct wmi_device *wdev,
 			break;
 		case 0x0010: /* Sequence of keys pressed */
 		case 0x0011: /* Sequence of events occurred */
+		case 0x0012: /* Sequence of events occurred */
 			for (i = 2; i < len; ++i)
 				dell_wmi_process_key(wdev, buffer_entry[1],
 						     buffer_entry[i]);
@@ -556,6 +565,7 @@ static int dell_wmi_input_setup(struct wmi_device *wdev)
 			 ARRAY_SIZE(dell_wmi_keymap_type_0000) +
 			 ARRAY_SIZE(dell_wmi_keymap_type_0010) +
 			 ARRAY_SIZE(dell_wmi_keymap_type_0011) +
+			 ARRAY_SIZE(dell_wmi_keymap_type_0012) +
 			 1,
 			 sizeof(struct key_entry), GFP_KERNEL);
 	if (!keymap) {
@@ -600,6 +610,13 @@ static int dell_wmi_input_setup(struct wmi_device *wdev)
 		pos++;
 	}
 
+	/* Append table with events of type 0x0012 */
+	for (i = 0; i < ARRAY_SIZE(dell_wmi_keymap_type_0012); i++) {
+		keymap[pos] = dell_wmi_keymap_type_0012[i];
+		keymap[pos].code |= (0x0012 << 16);
+		pos++;
+	}
+
 	/*
 	 * Now append also table with "legacy" events of type 0x0000. Some of
 	 * them are reported also on laptops which have scancodes in DMI.
-- 
2.27.0