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Subject[PATCH 09/14] asus-wmi: add calls to INIT, SPEC and SFUN on init
Date
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>
---
drivers/platform/x86/asus-wmi.c | 28 ++++++++++++++++++++++++++++
1 files changed, 28 insertions(+), 0 deletions(-)

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 @@ MODULE_LICENSE("GPL");
#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_rfkill {

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 asus_wmi_sysfs_init(struct platform_device *device)
*/
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.
--
1.7.4


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