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Commit 46dbca87 authored by Corentin Chary's avatar Corentin Chary Committed by Matthew Garrett
Browse files

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: default avatarCorentin Chary <corentincj@iksaif.net>
Signed-off-by: default avatarMatthew Garrett <mjg@redhat.com>
parent 8fbea019

drivers/platform/x86/asus-wmi.c

+28 −0
Original line number Diff line number Diff line
@@ -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.