asus-wmi: add calls to INIT, SPEC and SFUN on init
INIT() call is needed to enable hotkeys on G73
SPEC() and SFUN() allow us to know more about
available features.
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index adf7b05..88596ea 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -66,10 +66,13 @@
#define NOTIFY_BRNDOWN_MAX 0x2e
/* WMI Methods */
+#define ASUS_WMI_METHODID_SPEC 0x43455053
+#define ASUS_WMI_METHODID_SFUN 0x4E554653
#define ASUS_WMI_METHODID_DSTS 0x53544344
#define ASUS_WMI_METHODID_DSTS2 0x53545344
#define ASUS_WMI_METHODID_DEVS 0x53564544
#define ASUS_WMI_METHODID_CFVS 0x53564643
+#define ASUS_WMI_METHODID_INIT 0x54494E49
#define ASUS_WMI_UNSUPPORTED_METHOD 0xFFFFFFFE
@@ -126,6 +129,8 @@
struct asus_wmi {
int dsts_id;
+ int spec;
+ int sfun;
struct input_dev *inputdev;
struct backlight_device *backlight_device;
@@ -1065,6 +1070,29 @@
*/
static int __init asus_wmi_platform_init(struct asus_wmi *asus)
{
+ int rv;
+
+ /* INIT enable hotkeys on some models */
+ if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT, 0, 0, &rv))
+ pr_info("Initialization: %#x", rv);
+
+ /* We don't know yet what to do with this version... */
+ if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC, 0, 0x9, &rv)) {
+ pr_info("BIOS WMI version: %d.%d", rv >> 8, rv & 0xFF);
+ asus->spec = rv;
+ }
+
+ /*
+ * The SFUN method probably allows the original driver to get the list
+ * of features supported by a given model. For now, 0x0100 or 0x0800
+ * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
+ * The significance of others is yet to be found.
+ */
+ if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN, 0, 0, &rv)) {
+ pr_info("SFUN value: %#x", rv);
+ asus->sfun = rv;
+ }
+
/*
* Eee PC and Notebooks seems to have different method_id for DSTS,
* but it may also be related to the BIOS's SPEC.