Dnia 2012-03-18, nie o godzinie 18:00 -0500, Chris Bagwell pisze:
> On Sun, Mar 18, 2012 at 2:27 PM, Przemo Firszt <prz...@firszt.eu> wrote:
> > This patch adds battery/ac reporting for Intuos4 WL. It uses existing
> > sysfs code, but the device reports battery capacity in more fine-grained
> > way,
> > so there has to be a separate lookup table (called batcap_i4).
> >
> > Signed-off-by: Przemo Firszt <prz...@firszt.eu>
> > ---
> > drivers/hid/hid-wacom.c | 12 ++++++++++++
> > 1 files changed, 12 insertions(+), 0 deletions(-)
> >
> > diff --git a/drivers/hid/hid-wacom.c b/drivers/hid/hid-wacom.c
> > index 1d19ccb..2c89c8a 100644
> > --- a/drivers/hid/hid-wacom.c
> > +++ b/drivers/hid/hid-wacom.c
> > @@ -54,6 +54,8 @@ struct wacom_data {
> > /*percent of battery capacity for Graphire
> > 7th value means AC online and show 100% capacity */
> > static unsigned short batcap_gr[8] = { 1, 15, 25, 35, 50, 70, 100, 100 };
> > +/*percent of battery capacity for Intuos4 WL, AC has a separate bit*/
> > +static unsigned short batcap_i4[8] = { 1, 15, 30, 45, 60, 70, 85, 100 };
> >
> > static enum power_supply_property wacom_battery_props[] = {
> > POWER_SUPPLY_PROP_PRESENT,
> > @@ -455,6 +457,8 @@ static int wacom_raw_event(struct hid_device *hdev,
> > struct hid_report *report,
> > struct input_dev *input;
> > unsigned char *data = (unsigned char *) raw_data;
> > int i;
> > + __u8 battery;
> > + __u8 ps_connected;
> >
> > if (!(hdev->claimed & HID_CLAIMED_INPUT))
> > return 0;
> > @@ -482,6 +486,14 @@ static int wacom_raw_event(struct hid_device *hdev,
> > struct hid_report *report,
> > wacom_i4_parse_report(hdev, wdata, input, data + i);
> > i += 10;
> > wacom_i4_parse_report(hdev, wdata, input, data + i);
> > + battery = data[i+10] & 0x07;
> > + if (batcap_i4[battery] != wdata->battery_capacity)
> > + wdata->battery_capacity =
> > batcap_i4[battery];
> > +
> > + ps_connected = data[i+10] & 0x08;
> > + if (ps_connected != wdata->ps_connected)
> > + wdata->ps_connected = ps_connected;
> > +
>
> I think in long term it would be better if you kept same code flow for
> both Graphire and Intuos4. Your 2nd patch for Graphire looked closer
> to this:
>
> if (data[i+10] != wdata->battery_raw) {
> wdat->battery_raw = data[i+10];
> battery = data[i+10] & 0x07;
> wdata->battery_capacity = batcap_i4[battery];
> ps_connected = data[i+10] & 0x08;
> wdata->ps_connected = ps_connected;
> }
>
Chris,
You're right - it will be more consistent. I'll resubmit both patches.
I'm going to use something like power_raw instead of battery_raw and I
no longer see the need to keep the option CONFIG_HID_WACOM_POWER_SUPPLY
It was ment to be a safe valve if the system decides to treat wacom
battery as main power supply and i.e. shut down because battery is low.
Thanks,
--
Przemo Firszt <prz...@firszt.eu>
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