On Thu, Jul 26, 2012 at 5:33 AM, AceLan Kao <[email protected]> wrote:
> If the user bit is set, that mean BIOS can't set and record the wlan
> status, it will report the value read from id ASUS_WMI_DEVID_WLAN_LED
> (0x00010012) while we query the wlan status by id ASUS_WMI_DEVID_WLAN
> (0x00010011) through WMI.
> So, we have to record wlan status in id ASUS_WMI_DEVID_WLAN_LED
> (0x00010012) while setting the wlan status through WMI.
> This is also the behavior that windows app will do.
>
> Quote from ASUS application engineer
> ===
> When you call WMIMethod(DSTS, 0x00010011) to get WLAN status, it may return
>
> (1) 0x00050001 (On)
> (2) 0x00050000 (Off)
> (3) 0x00030001 (On)
> (4) 0x00030000 (Off)
> (5) 0x00000002 (Unknown)
>
> (1), (2) means that the model has hardware GPIO for WLAN, you can call
> WMIMethod(DEVS, 0x00010011, 1 or 0) to turn WLAN on/off.
> (3), (4) means that the model doesn’t have hardware GPIO, you need to use
> API or driver library to turn WLAN on/off, and call
> WMIMethod(DEVS, 0x00010012, 1 or 0) to set WLAN LED status.
> After you set WLAN LED status, you can see the WLAN status is changed with
> WMIMethod(DSTS, 0x00010011). Because the status is recorded lastly
> (ex: Windows), you can use it for synchronization.
> (5) means that the model doesn’t have WLAN device.
>
> WLAN is the ONLY special case with upper rule.
>
> For other device, like Bluetooth, you just need use
> WMIMethod(DSTS, 0x00010013) to get, and WMIMethod(DEVS, 0x00010013, 1 or 0)
> to set.
> ===
>
> Signed-off-by: AceLan Kao <[email protected]>
> ---
> drivers/platform/x86/asus-wmi.c | 23 ++++++++++++++++++++++-
> drivers/platform/x86/asus-wmi.h | 1 +
> 2 files changed, 23 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
> index 77aadde..a13eb45 100644
> --- a/drivers/platform/x86/asus-wmi.c
> +++ b/drivers/platform/x86/asus-wmi.c
> @@ -98,6 +98,7 @@ MODULE_LICENSE("GPL");
> #define ASUS_WMI_DEVID_WIRELESS_LED 0x00010002
> #define ASUS_WMI_DEVID_CWAP 0x00010003
> #define ASUS_WMI_DEVID_WLAN 0x00010011
> +#define ASUS_WMI_DEVID_WLAN_LED 0x00010012
> #define ASUS_WMI_DEVID_BLUETOOTH 0x00010013
> #define ASUS_WMI_DEVID_GPS 0x00010015
> #define ASUS_WMI_DEVID_WIMAX 0x00010017
> @@ -493,6 +494,8 @@ static int asus_wmi_led_init(struct asus_wmi *asus)
>
> rv = led_classdev_register(&asus->platform_device->dev,
> &asus->kbd_led);
> + if (rv)
> + goto error;
> }
>
Hm ? Is that missing from the led patch ?
> error:
> @@ -725,8 +728,21 @@ static int asus_rfkill_set(void *data, bool blocked)
> {
> struct asus_rfkill *priv = data;
> u32 ctrl_param = !blocked;
> + u32 dev_id = priv->dev_id;
> +
> + /*
> + * If the user bit is set, BIOS can't set and record the wlan status,
> + * it will report the value read from id ASUS_WMI_DEVID_WLAN_LED
> + * while we query the wlan status through WMI(ASUS_WMI_DEVID_WLAN).
> + * So, we have to record wlan status in id ASUS_WMI_DEVID_WLAN_LED
> + * while setting the wlan status through WMI.
> + * This is also the behavior that windows app will do.
> + */
> + if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
> + priv->asus->driver->wlan_ctrl_by_user)
> + dev_id = ASUS_WMI_DEVID_WLAN_LED;
>
> - return asus_wmi_set_devstate(priv->dev_id, ctrl_param, NULL);
> + return asus_wmi_set_devstate(dev_id, ctrl_param, NULL);
> }
>
> static void asus_rfkill_query(struct rfkill *rfkill, void *data)
> @@ -1648,6 +1664,7 @@ static int asus_wmi_add(struct platform_device *pdev)
> struct asus_wmi *asus;
> acpi_status status;
> int err;
> + u32 result;
>
> asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL);
> if (!asus)
> @@ -1700,6 +1717,10 @@ static int asus_wmi_add(struct platform_device *pdev)
> if (err)
> goto fail_debugfs;
>
> + asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result);
> + if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT))
> + asus->driver->wlan_ctrl_by_user = 1;
> +
> return 0;
>
> fail_debugfs:
> diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h
> index d43b667..cbe7ee2 100644
> --- a/drivers/platform/x86/asus-wmi.h
> +++ b/drivers/platform/x86/asus-wmi.h
> @@ -45,6 +45,7 @@ struct quirk_entry {
> struct asus_wmi_driver {
> int brightness;
> int panel_power;
> + int wlan_ctrl_by_user;
>
> const char *name;
> struct module *owner;
> --
> 1.7.9.5
>
Except the led artifact, this patch look ok. Please fix the led patch
and we should be done !
Thanks !
--
Corentin Chary
http://xf.iksaif.net
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