Dear joeyli,
> Hi Marek,
>
> 於 一，2012-05-28 於 01:44 +0200，Marek Vasut 提到：
>
> > This device is present on Iconia Tab W500.
> >
> > Signed-off-by: Marek Vasut <marex@xxxxxxx>
> > Cc: joeyli <jlee@xxxxxxxx>
> > ---
> >
> > drivers/platform/x86/acer-wmi.c | 110
> > +++++++++++++++++++++++++++++++++++++++ 1 file changed, 110
> > insertions(+)
> >
> > diff --git a/drivers/platform/x86/acer-wmi.c
> > b/drivers/platform/x86/acer-wmi.c index c1a3fd8..2df0673 100644
> > --- a/drivers/platform/x86/acer-wmi.c
> > +++ b/drivers/platform/x86/acer-wmi.c
> > @@ -95,6 +95,7 @@
> > MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
> >
> > enum acer_wmi_event_ids {
> >
> > WMID_HOTKEY_EVENT = 0x1,
> >
> > + WMID_ACCEL_EVENT = 0x5,
> >
> > };
> >
> > static const struct key_entry acer_wmi_keymap[] = {
> >
> > @@ -130,6 +131,7 @@ static const struct key_entry acer_wmi_keymap[] = {
> >
> > };
> >
> > static struct input_dev *acer_wmi_input_dev;
> >
> > +static struct input_dev *acer_wmi_accel_dev;
> >
> > struct event_return_value {
> >
> > u8 function;
> >
> > @@ -145,6 +147,7 @@ struct event_return_value {
> >
> > #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
> > #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
> > #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
> >
> > +#define ACER_WMID3_GDS_ACCEL (1<<2) /* Accelerometer */
>
> Please kindly share your dmidecode information:
> # dmidecode > dmidecode.log
Will do.
> How did you know '1<<2' reflects to G-sensor? As I know this is a
> reserved bit did not use before.
Honestly? Wild guess.
> > struct lm_input_params {
> >
> > u8 function_num; /* Function Number */
> >
> > @@ -200,6 +203,7 @@ struct hotkey_function_type_aa {
> >
> > #define ACER_CAP_BLUETOOTH (1<<2)
> > #define ACER_CAP_BRIGHTNESS (1<<3)
> > #define ACER_CAP_THREEG (1<<4)
> >
> > +#define ACER_CAP_ACCEL (1<<5)
> >
> > #define ACER_CAP_ANY (0xFFFFFFFF)
> >
> > /*
> >
> > @@ -1150,6 +1154,8 @@ static void type_aa_dmi_decode(const struct
> > dmi_header *header, void *dummy)
> >
> > interface->capability |= ACER_CAP_THREEG;
> >
> > if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
> >
> > interface->capability |= ACER_CAP_BLUETOOTH;
> >
> > + if (type_aa->others_func_bitmap & ACER_WMID3_GDS_ACCEL)
> > + interface->capability |= ACER_CAP_ACCEL;
> >
> > commun_fn_key_number = type_aa->commun_fn_key_number;
> >
> > }
> >
> > @@ -1375,6 +1381,61 @@ static void acer_backlight_exit(void)
> >
> > }
> >
> > /*
> >
> > + * Accelerometer device
> > + */
> > +#define ACER_GSENSOR_HANDLE "\\_SB.PCI0.LPC0.SENR"
> > +#define ACER_GSENSOR_INIT "\\_SB.PCI0.LPC0.SENR._INI"
> > +#define ACER_GSENSOR_RDVL "\\_SB.PCI0.LPC0.SENR.RDVL"
>
> I think that will be better don't hard code the path of device in
> driver, because different models have different path naming.
Certainly, how should I do it the correct way please?
> IMHO, please reference thinkpad_acpi driver like the following:
>
> vi drivers/platform/x86/thinkpad_acpi.c
>
> #define TPACPI_ACPI_EC_HID "PNP0C09"
> ...
> static acpi_handle ec_handle;
> ...
>
> static int __init probe_for_thinkpad(void)
> {
> ...
> /* The EC handler is required */
> tpacpi_acpi_handle_locate("ec", TPACPI_ACPI_EC_HID, &ec_handle);
>
> static void __init tpacpi_acpi_handle_locate(const char *name,
> {
> ...
> memset(&device_found, 0, sizeof(device_found));
> status = acpi_get_devices(hid, tpacpi_acpi_handle_locate_callback,
> (void *)name, &device_found);
I see! Will do (incl. the other driver) Thanks for your guidance here, really,
thanks a lot!
> > @@ -2118,6 +2225,9 @@ static void __exit acer_wmi_exit(void)
> >
> > if (wmi_has_guid(ACERWMID_EVENT_GUID))
> >
> > acer_wmi_input_destroy();
> >
> > + if (has_cap(ACER_CAP_ACCEL))
> > + acer_wmi_accel_destroy();
> > +
> >
> > remove_sysfs(acer_platform_device);
> > remove_debugfs();
> > platform_device_unregister(acer_platform_device);
>
> other stuff looks good to me.
Thanks. Btw I'll update the CC list in V2.
>
> Thanks a lot!
> Joey Lee
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