於 日,2012-11-25 於 00:28 +0200,Maxim Mikityanskiy 提到:
> Replaced msi_init_rfkill() by msi_update_rfkill(), removed delays by
> replacing delayed works by just works and made msi_laptop_i8042_filter()
> filter out KEY_TOUCHPAD_TOGGLE when sending KEY_TOUCHPAD_ON and
> KEY_TOUCHPAD_OFF.

Please separate to 2 patches, one for touchpad key and other one for
rfkill.

And, 
I am not agree for the clean up to msi_init_rfkill unless it causes
problem on U90/U100. Did you find any issue on U90/U100?

I delay 1 magic second for msi_rfkill_init because there have other MSI
model need a delay time after we set SCM mode through write EC
register. 
So, please don't change the code for msi_init_rfkill delay work, just
keep it works with other MSI shipping machines.

> 
> Signed-off-by: Maxim Mikityanskiy <[email protected]>
> ---
>  drivers/platform/x86/msi-laptop.c | 67 
> ++++++++++++++-------------------------
>  1 file changed, 24 insertions(+), 43 deletions(-)
> 
> diff --git a/drivers/platform/x86/msi-laptop.c 
> b/drivers/platform/x86/msi-laptop.c
> index 7ba107a..3b6f494 100644
> --- a/drivers/platform/x86/msi-laptop.c
> +++ b/drivers/platform/x86/msi-laptop.c
> @@ -600,8 +600,23 @@ static const struct rfkill_ops rfkill_threeg_ops = {
>       .set_block = rfkill_threeg_set
>  };
>  
> +static void msi_update_rfkill(struct work_struct *ignored)
> +{
> +     get_wireless_state_ec_standard();
> +
> +     if (rfk_wlan)
> +             rfkill_set_sw_state(rfk_wlan, !wlan_s);
> +     if (rfk_bluetooth)
> +             rfkill_set_sw_state(rfk_bluetooth, !bluetooth_s);
> +     if (rfk_threeg)
> +             rfkill_set_sw_state(rfk_threeg, !threeg_s);
> +}
> +static DECLARE_WORK(msi_rfkill_work, msi_update_rfkill);
> +
>  static void rfkill_cleanup(void)
>  {
> +     cancel_work_sync(&msi_rfkill_work);
> +
>       if (rfk_bluetooth) {
>               rfkill_unregister(rfk_bluetooth);
>               rfkill_destroy(rfk_bluetooth);
> @@ -618,19 +633,6 @@ static void rfkill_cleanup(void)
>       }
>  }
>  
> -static void msi_update_rfkill(struct work_struct *ignored)
> -{
> -     get_wireless_state_ec_standard();
> -
> -     if (rfk_wlan)
> -             rfkill_set_sw_state(rfk_wlan, !wlan_s);
> -     if (rfk_bluetooth)
> -             rfkill_set_sw_state(rfk_bluetooth, !bluetooth_s);
> -     if (rfk_threeg)
> -             rfkill_set_sw_state(rfk_threeg, !threeg_s);
> -}
> -static DECLARE_DELAYED_WORK(msi_rfkill_work, msi_update_rfkill);
> -
>  static void msi_send_touchpad_key(struct work_struct *ignored)
>  {
>       u8 rdata;
> @@ -644,7 +646,7 @@ static void msi_send_touchpad_key(struct work_struct 
> *ignored)
>               (rdata & MSI_STANDARD_EC_TOUCHPAD_MASK) ?
>               KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF, 1, true);
>  }
> -static DECLARE_DELAYED_WORK(msi_touchpad_work, msi_send_touchpad_key);
> +static DECLARE_WORK(msi_touchpad_work, msi_send_touchpad_key);
>  
>  static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str,
>                               struct serio *port)
> @@ -662,14 +664,16 @@ static bool msi_laptop_i8042_filter(unsigned char data, 
> unsigned char str,
>               extended = false;
>               switch (data) {
>               case 0xE4:
> -                     schedule_delayed_work(&msi_touchpad_work,
> -                             round_jiffies_relative(0.5 * HZ));
> -                     break;
> +                     schedule_work(&msi_touchpad_work);

Don't remove the 0.5 magic delay, please! It will cause other shipped
MSI machines got problem could not capture the real change of EC
register.

> +             case 0x64:
> +                     /* Filter out KEY_TOUCHPAD_TOGGLE and send only
> +                      * KEY_TOUCHPAD_ON and KEY_TOUCHPAD_OFF
> +                      */
> +                     return true;

Why this patch filter out 0x64 key? What's the scan code emitted when
press the touchpad on/off Fn key on U100? Does it emit
KEY_TOUCHPAD_TOGGLE and KEY_TOUCHPAD_ON/OFF at the same time?

>               case 0x54:
>               case 0x62:
>               case 0x76:
> -                     schedule_delayed_work(&msi_rfkill_work,
> -                             round_jiffies_relative(0.5 * HZ));
> +                     schedule_work(&msi_rfkill_work);
>                       break;
>               }
>       }
> @@ -677,31 +681,11 @@ static bool msi_laptop_i8042_filter(unsigned char data, 
> unsigned char str,
>       return false;
>  }
>  
> -static void msi_init_rfkill(struct work_struct *ignored)
> -{
> -     if (rfk_wlan) {
> -             rfkill_set_sw_state(rfk_wlan, !wlan_s);
> -             rfkill_wlan_set(NULL, !wlan_s);
> -     }
> -     if (rfk_bluetooth) {
> -             rfkill_set_sw_state(rfk_bluetooth, !bluetooth_s);
> -             rfkill_bluetooth_set(NULL, !bluetooth_s);
> -     }
> -     if (rfk_threeg) {
> -             rfkill_set_sw_state(rfk_threeg, !threeg_s);
> -             rfkill_threeg_set(NULL, !threeg_s);
> -     }
> -}
> -static DECLARE_DELAYED_WORK(msi_rfkill_init, msi_init_rfkill);
> -
>  static int rfkill_init(struct platform_device *sdev)
>  {
>       /* add rfkill */
>       int retval;
>  
> -     /* keep the hardware wireless state */
> -     get_wireless_state_ec_standard();
> -
>       rfk_bluetooth = rfkill_alloc("msi-bluetooth", &sdev->dev,
>                               RFKILL_TYPE_BLUETOOTH,
>                               &rfkill_bluetooth_ops, NULL);
> @@ -736,8 +720,7 @@ static int rfkill_init(struct platform_device *sdev)
>       }
>  
>       /* schedule to run rfkill state initial */
> -     schedule_delayed_work(&msi_rfkill_init,
> -                             round_jiffies_relative(1 * HZ));
> +     schedule_work(&msi_rfkill_work);
>  
>       return 0;
>  
> @@ -951,7 +934,6 @@ fail_platform_device2:
>  
>       if (load_scm_model) {
>               i8042_remove_filter(msi_laptop_i8042_filter);
> -             cancel_delayed_work_sync(&msi_rfkill_work);
>               rfkill_cleanup();
>       }
>       platform_device_del(msipf_device);
> @@ -976,7 +958,6 @@ static void __exit msi_cleanup(void)
>       if (load_scm_model) {
>               i8042_remove_filter(msi_laptop_i8042_filter);
>               msi_laptop_input_destroy();
> -             cancel_delayed_work_sync(&msi_rfkill_work);
>               rfkill_cleanup();
>       }
>  

Thanks a lot!
Joey Lee


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