ideapad: add event for Novo key

Novo key is the Lenovo define key on every ideapads, which has two
definition. Long press and short click. Driver will report
KEY_PROG1 on short click and KEY_PROG2 when long press.

On pre-install OS for ideapads there are application waiting for
the event and there is no such application for Linux yet, so I
think to report KEY_PROG is fine in anyway.

Also change the scancode from hex to decimal because they are
related to vpc bit in notify function which is in decimal.

Signed-off-by: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>

1 files changed, 19 insertions, 2 deletions

diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index ab3add3327ad..39a72a8aeb8c 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -386,8 +386,10 @@ static void ideapad_platform_exit(struct ideapad_private *priv)
  * input device
  */
 static const struct key_entry ideapad_keymap[] = {
-        { KE_KEY, 0x06, { KEY_SWITCHVIDEOMODE } },
-        { KE_KEY, 0x0D, { KEY_WLAN } },
+        { KE_KEY, 6,  { KEY_SWITCHVIDEOMODE } },
+        { KE_KEY, 13, { KEY_WLAN } },
+        { KE_KEY, 16, { KEY_PROG1 } },
+        { KE_KEY, 17, { KEY_PROG2 } },
         { KE_END, 0 },
 };
 
@@ -442,6 +444,18 @@ static void ideapad_input_report(struct ideapad_private *priv,
         sparse_keymap_report_event(priv->inputdev, scancode, 1, true);
 }
 
+static void ideapad_input_novokey(struct ideapad_private *priv)
+{
+        unsigned long long_pressed;
+
+        if (read_ec_data(ideapad_handle, VPCCMD_R_NOVO, &long_pressed))
+                return;
+        if (long_pressed)
+                ideapad_input_report(priv, 17);
+        else
+                ideapad_input_report(priv, 16);
+}
+
 /*
  * backlight
  */
@@ -634,6 +648,9 @@ static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
                         case 4:
                                 ideapad_backlight_notify_brightness(priv);
                                 break;
+                        case 3:
+                                ideapad_input_novokey(priv);
+                                break;
                         case 2:
                                 ideapad_backlight_notify_power(priv);
                                 break;