[PATCH v2 6/9] platform/x86: thinkpad_acpi: Add hotkey_notify_extended_hotkey() helper

[Hans de Goede <hdegoede@redhat.com>]

Factor the extended hotkey handling out of hotkey_notify_hotkey() and
into a new hotkey_notify_extended_hotkey() helper.

This is a preparation patch for adding support the privacy-screen hotkey
toggle (which needs some special handling, it should NOT send an evdev
key-event to userspace...).

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/platform/x86/thinkpad_acpi.c | 30 ++++++++++++++++++----------
 1 file changed, 19 insertions(+), 11 deletions(-)

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 0d9e2ddbf904..683c175cc28a 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -3878,6 +3878,24 @@ static bool adaptive_keyboard_hotkey_notify_hotkey(unsigned int scancode)
 	}
 }
 
+static bool hotkey_notify_extended_hotkey(const u32 hkey)
+{
+	unsigned int scancode;
+
+	/* Extended keycodes start at 0x300 and our offset into the map
+	 * TP_ACPI_HOTKEYSCAN_EXTENDED_START. The calculated scancode
+	 * will be positive, but might not be in the correct range.
+	 */
+	scancode = (hkey & 0xfff) - (0x300 - TP_ACPI_HOTKEYSCAN_EXTENDED_START);
+	if (scancode >= TP_ACPI_HOTKEYSCAN_EXTENDED_START &&
+	    scancode < TPACPI_HOTKEY_MAP_LEN) {
+		tpacpi_input_send_key(scancode);
+		return true;
+	}
+
+	return false;
+}
+
 static bool hotkey_notify_hotkey(const u32 hkey,
 				 bool *send_acpi_ev,
 				 bool *ignore_acpi_ev)
@@ -3912,17 +3930,7 @@ static bool hotkey_notify_hotkey(const u32 hkey,
 		return adaptive_keyboard_hotkey_notify_hotkey(scancode);
 
 	case 3:
-		/* Extended keycodes start at 0x300 and our offset into the map
-		 * TP_ACPI_HOTKEYSCAN_EXTENDED_START. The calculated scancode
-		 * will be positive, but might not be in the correct range.
-		 */
-		scancode -= (0x300 - TP_ACPI_HOTKEYSCAN_EXTENDED_START);
-		if (scancode >= TP_ACPI_HOTKEYSCAN_EXTENDED_START &&
-		    scancode < TPACPI_HOTKEY_MAP_LEN) {
-			tpacpi_input_send_key(scancode);
-			return true;
-		}
-		break;
+		return hotkey_notify_extended_hotkey(hkey);
 	}
 
 	return false;
-- 
2.31.1

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