於 六,2012-12-15 於 19:31 +0200,Maxim Mikityanskiy 提到:
> Add MSI Wind support to msi-wmi driver. MSI Wind has different GUID for
> key events, different WMI key scan codes, it does not need filtering
> consecutive identical events and it does not support backlight control
> via MSIWMI_BIOS_GUID WMI. Tested on MSI Wind U100.
> 
> Signed-off-by: Maxim Mikityanskiy <[email protected]>

Acked-by: Lee, Chun-Yi <[email protected]>

Thanks a lot!
Joey Lee

> ---
>  drivers/platform/x86/msi-wmi.c | 65 
> ++++++++++++++++++++++++++++++++----------
>  1 file changed, 50 insertions(+), 15 deletions(-)
> 
> diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c
> index 739bd4d..70222f2 100644
> --- a/drivers/platform/x86/msi-wmi.c
> +++ b/drivers/platform/x86/msi-wmi.c
> @@ -37,17 +37,27 @@ MODULE_LICENSE("GPL");
>  #define DRV_NAME "msi-wmi"
>  
>  #define MSIWMI_BIOS_GUID "551A1F84-FBDD-4125-91DB-3EA8F44F1D45"
> -#define MSIWMI_EVENT_GUID "B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2"
> +#define MSIWMI_MSI_EVENT_GUID "B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2"
> +#define MSIWMI_WIND_EVENT_GUID "5B3CC38A-40D9-7245-8AE6-1145B751BE3F"
>  
>  MODULE_ALIAS("wmi:" MSIWMI_BIOS_GUID);
> -MODULE_ALIAS("wmi:" MSIWMI_EVENT_GUID);
> +MODULE_ALIAS("wmi:" MSIWMI_MSI_EVENT_GUID);
> +MODULE_ALIAS("wmi:" MSIWMI_WIND_EVENT_GUID);
>  
>  enum msi_scancodes {
> +     /* Generic MSI keys (not present on MSI Wind) */
>       MSI_KEY_BRIGHTNESSUP    = 0xD0,
>       MSI_KEY_BRIGHTNESSDOWN,
>       MSI_KEY_VOLUMEUP,
>       MSI_KEY_VOLUMEDOWN,
>       MSI_KEY_MUTE,
> +     /* MSI Wind keys */
> +     WIND_KEY_TOUCHPAD       = 0x08, /* Fn+F3 touchpad toggle */
> +     WIND_KEY_BLUETOOTH      = 0x56, /* Fn+F11 Bluetooth toggle */
> +     WIND_KEY_CAMERA,                /* Fn+F6 webcam toggle */
> +     WIND_KEY_WLAN           = 0x5f, /* Fn+F11 Wi-Fi toggle */
> +     WIND_KEY_TURBO,                 /* Fn+F10 turbo mode toggle */
> +     WIND_KEY_ECO            = 0x69, /* Fn+F10 ECO mode toggle */
>  };
>  static struct key_entry msi_wmi_keymap[] = {
>       { KE_KEY, MSI_KEY_BRIGHTNESSUP,         {KEY_BRIGHTNESSUP} },
> @@ -55,13 +65,34 @@ static struct key_entry msi_wmi_keymap[] = {
>       { KE_KEY, MSI_KEY_VOLUMEUP,             {KEY_VOLUMEUP} },
>       { KE_KEY, MSI_KEY_VOLUMEDOWN,           {KEY_VOLUMEDOWN} },
>       { KE_KEY, MSI_KEY_MUTE,                 {KEY_MUTE} },
> +
> +     /* These keys work without WMI. Ignore them to avoid double keycodes */
> +     { KE_IGNORE, WIND_KEY_TOUCHPAD,         {KEY_TOUCHPAD_TOGGLE} },
> +     { KE_IGNORE, WIND_KEY_BLUETOOTH,        {KEY_BLUETOOTH} },
> +     { KE_IGNORE, WIND_KEY_CAMERA,           {KEY_CAMERA} },
> +     { KE_IGNORE, WIND_KEY_WLAN,             {KEY_WLAN} },
> +
> +     /* These are unknown WMI events found on MSI Wind */
> +     { KE_IGNORE, 0x00 },
> +     { KE_IGNORE, 0x62 },
> +     { KE_IGNORE, 0x63 },
> +
> +     /* These are MSI Wind keys that should be handled via WMI */
> +     { KE_KEY, WIND_KEY_TURBO,               {KEY_PROG1} },
> +     { KE_KEY, WIND_KEY_ECO,                 {KEY_PROG2} },
> +
>       { KE_END, 0 }
>  };
>  
>  static ktime_t last_pressed;
> -static bool quirk_last_pressed;
>  
> -static const char *event_wmi_guid;
> +static const struct {
> +     const char *guid;
> +     bool quirk_last_pressed;
> +} *event_wmi, event_wmis[] = {
> +     { MSIWMI_MSI_EVENT_GUID, true },
> +     { MSIWMI_WIND_EVENT_GUID, false },
> +};
>  
>  static struct backlight_device *backlight;
>  
> @@ -174,7 +205,7 @@ static void msi_wmi_notify(u32 value, void *context)
>                       goto msi_wmi_notify_exit;
>               }
>  
> -             if (quirk_last_pressed) {
> +             if (event_wmi->quirk_last_pressed) {
>                       ktime_t cur = ktime_get_real();
>                       ktime_t diff = ktime_sub(cur, last_pressed);
>                       /* Ignore event if any event happened in a 50 ms
> @@ -265,15 +296,19 @@ err_free_dev:
>  static int __init msi_wmi_init(void)
>  {
>       int err;
> +     int i;
> +
> +     for (i = 0; i < ARRAY_SIZE(event_wmis); i++) {
> +             if (!wmi_has_guid(event_wmis[i].guid))
> +                     continue;
>  
> -     if (wmi_has_guid(MSIWMI_EVENT_GUID)) {
>               err = msi_wmi_input_setup();
>               if (err) {
>                       pr_err("Unable to setup input device\n");
>                       return err;
>               }
>  
> -             err = wmi_install_notify_handler(MSIWMI_EVENT_GUID,
> +             err = wmi_install_notify_handler(event_wmis[i].guid,
>                       msi_wmi_notify, NULL);
>               if (ACPI_FAILURE(err)) {
>                       pr_err("Unable to setup WMI notify handler\n");
> @@ -281,8 +316,8 @@ static int __init msi_wmi_init(void)
>               }
>  
>               pr_debug("Event handler installed\n");
> -             event_wmi_guid = MSIWMI_EVENT_GUID;
> -             quirk_last_pressed = true;
> +             event_wmi = &event_wmis[i];
> +             break;
>       }
>  
>       if (wmi_has_guid(MSIWMI_BIOS_GUID) && !acpi_video_backlight_support()) {
> @@ -294,7 +329,7 @@ static int __init msi_wmi_init(void)
>               pr_debug("Backlight device created\n");
>       }
>  
> -     if (!event_wmi_guid && !backlight) {
> +     if (!event_wmi && !backlight) {
>               pr_err("This machine doesn't have neither MSI-hotkeys nor 
> backlight through WMI\n");
>               return -ENODEV;
>       }
> @@ -302,10 +337,10 @@ static int __init msi_wmi_init(void)
>       return 0;
>  
>  err_uninstall_handler:
> -     if (event_wmi_guid)
> -             wmi_remove_notify_handler(event_wmi_guid);
> +     if (event_wmi)
> +             wmi_remove_notify_handler(event_wmi->guid);
>  err_free_input:
> -     if (event_wmi_guid) {
> +     if (event_wmi) {
>               sparse_keymap_free(msi_wmi_input_dev);
>               input_unregister_device(msi_wmi_input_dev);
>       }
> @@ -314,8 +349,8 @@ err_free_input:
>  
>  static void __exit msi_wmi_exit(void)
>  {
> -     if (event_wmi_guid) {
> -             wmi_remove_notify_handler(event_wmi_guid);
> +     if (event_wmi) {
> +             wmi_remove_notify_handler(event_wmi->guid);
>               sparse_keymap_free(msi_wmi_input_dev);
>               input_unregister_device(msi_wmi_input_dev);
>       }


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