Re: [PATCH] HID: wacom: add full support of the Wacom Bamboo PAD

From: Benjamin Tissoires
Date: Wed Feb 18 2015 - 17:08:10 EST

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On Feb 18 2015 or thereabouts, jsanchezf wrote:
> Hello Benjamin
>
> Following your instructions I managed to compile and install the wacom
> module properly (actually I had to run automake and autoconf to make it all
> work but no problems after that).
>
> The stylus is working just fine now. Unfortunately the touch pad part
> doesn't seem to be working at all, and Xorg isn't mapping it to an event
> file like it used to. The stylus event file is not seeing any data when I
> touch the pad either.
>
> By the way, I'm actually using the USB variant of the Bamboo Pad.
>

Yep, I know. That's why I asked you to test :)

So could you run "sudo hid-recorder /dev/hidraw*" while making some
inputs on the touchpad?

I'd like to check if your touchpad is actually switched to the debug
mode.

Cheers,
Benjamin

> Looking at the log file from Xorg, though, I can see how it's properly
> detecting the "Wacom USB Bamboo PAD Pen stylus" device and adding "Wacom
> USB Bamboo PAD Pen touch" as an extended input device. Here's the full log:
> http://pastebin.com/k3SqtQN5
>
> I should mention I have no Xorg configuration done whatsoever besides the
> monitor resolution setup (which is not really relevant
>
>
>
> 2015-02-17 20:27 GMT+01:00 Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx
> >:
>
> > The stylus of this device works just fine out of the box.
> > The touch is seen by default as a mouse with relative events and some
> > gestures.
> > Switching the default in raw mode allows us to retrieve the touch data
> > and have a consistent user experience accross all the multitouch touchpads.
> >
> > Note that the buttons of this devices are reported through the touch
> > interface. There is no 'Pad' interface. It seemed more natural to have
> > the BTN_LEFT and BTN_RIGHT reported with the touch because they are
> > placed under the touch interface and it looks like they belong to the
> > touch part.
> >
> > Signed-off-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
> > ---
> >
> > Hi,
> >
> > several things before we can merge this:
> >
> > Josep, Frederic:
> > Would you mind testing this patch with your Bamboo pads? I bought the
> > wireless
> > variant and the USB one has a different ProductID. Hopefully, it will go
> > smoothly with the current patch.
> >
> > Peter, Ping, Jason:
> > Given the nature of the device, I did not exported the 2 buttons as a
> > separate
> > pad device.
> > Do you back me up with this choice?
> >
> > Jiri:
> > As mentioned to Josep and Frederic, this has not been tested against the
> > USB
> > (wired) version of the device. So please wait at least for one tested-by
> > before
> > considering including this patch.
> >
> > Thanks everyone!
> > Benjamin
> >
> > drivers/hid/wacom_sys.c | 23 ++++++++++++++++++
> > drivers/hid/wacom_wac.c | 62
> > +++++++++++++++++++++++++++++++++++++++++++++++++
> > drivers/hid/wacom_wac.h | 3 +++
> > 3 files changed, 88 insertions(+)
> >
> > diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
> > index e1ec192..ef4d147 100644
> > --- a/drivers/hid/wacom_sys.c
> > +++ b/drivers/hid/wacom_sys.c
> > @@ -410,6 +410,9 @@ static int wacom_query_tablet_data(struct hid_device
> > *hdev,
> > else if (features->type == WACOM_27QHDT) {
> > return wacom_set_device_mode(hdev, 131, 3, 2);
> > }
> > + else if (features->type == BAMBOO_PAD) {
> > + return wacom_set_device_mode(hdev, 2, 2, 3);
> > + }
> > } else if (features->device_type == BTN_TOOL_PEN) {
> > if (features->type <= BAMBOO_PT && features->type !=
> > WIRELESS) {
> > return wacom_set_device_mode(hdev, 2, 2, 2);
> > @@ -1417,6 +1420,20 @@ static int wacom_probe(struct hid_device *hdev,
> > goto fail_allocate_inputs;
> > }
> >
> > + /*
> > + * Bamboo Pad has a generic hid handling for the Pen, and we
> > switch it
> > + * into debug mode for the touch part.
> > + * We ignore the other interfaces.
> > + */
> > + if (features->type == BAMBOO_PAD) {
> > + if (features->pktlen == WACOM_PKGLEN_PENABLED) {
> > + features->type = HID_GENERIC;
> > + } else if (features->pktlen != WACOM_PKGLEN_BP_TOUCH) {
> > + error = -ENODEV;
> > + goto fail_shared_data;
> > + }
> > + }
> > +
> > /* set the default size in case we do not get them from hid */
> > wacom_set_default_phy(features);
> >
> > @@ -1451,6 +1468,12 @@ static int wacom_probe(struct hid_device *hdev,
> > features->y_max = 4096;
> > }
> >
> > + /*
> > + * Same thing for Bamboo PAD
> > + */
> > + if (features->type == BAMBOO_PAD)
> > + features->device_type = BTN_TOOL_FINGER;
> > +
> > if (hdev->bus == BUS_BLUETOOTH)
> > features->quirks |= WACOM_QUIRK_BATTERY;
> >
> > diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
> > index 1a65079..8627581 100644
> > --- a/drivers/hid/wacom_wac.c
> > +++ b/drivers/hid/wacom_wac.c
> > @@ -1826,6 +1826,49 @@ static int wacom_bpt_irq(struct wacom_wac *wacom,
> > size_t len)
> > return 0;
> > }
> >
> > +static int wacom_bamboo_pad_irq(struct wacom_wac *wacom, size_t len)
> > +{
> > + struct input_dev *input = wacom->input;
> > + unsigned char *data = wacom->data;
> > + unsigned char *finger_data, prefix;
> > + unsigned id;
> > + int x, y;
> > + bool valid;
> > +
> > + /* bit 2 in data[1] is set when there is touch information
> > available */
> > + if ((len != WACOM_PKGLEN_BP_TOUCH) ||
> > + (data[0] != WACOM_REPORT_BP_TOUCH) ||
> > + !(data[1] & 0x02))
> > + return 0;
> > +
> > + prefix = data[9];
> > +
> > + for (id = 0; id < wacom->features.touch_max; id++) {
> > + valid = !!(prefix & BIT(id)) &&
> > + !wacom->shared->stylus_in_proximity;
> > +
> > + input_mt_slot(input, id);
> > + input_mt_report_slot_state(input, MT_TOOL_FINGER, valid);
> > +
> > + if (!valid)
> > + continue;
> > +
> > + finger_data = data + 10 + id * 3;
> > + x = finger_data[0] | ((finger_data[1] & 0x0f) << 8);
> > + y = (finger_data[2] << 4) | (finger_data[1] >> 4);
> > +
> > + input_report_abs(input, ABS_MT_POSITION_X, x);
> > + input_report_abs(input, ABS_MT_POSITION_Y, y);
> > + }
> > +
> > + input_mt_sync_frame(input);
> > +
> > + input_report_key(input, BTN_LEFT, prefix & 0x40);
> > + input_report_key(input, BTN_RIGHT, prefix & 0x80);
> > +
> > + return 1;
> > +}
> > +
> > static int wacom_wireless_irq(struct wacom_wac *wacom, size_t len)
> > {
> > unsigned char *data = wacom->data;
> > @@ -1962,6 +2005,10 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac,
> > size_t len)
> > sync = wacom_bpt_irq(wacom_wac, len);
> > break;
> >
> > + case BAMBOO_PAD:
> > + sync = wacom_bamboo_pad_irq(wacom_wac, len);
> > + break;
> > +
> > case WIRELESS:
> > sync = wacom_wireless_irq(wacom_wac, len);
> > break;
> > @@ -2300,6 +2347,13 @@ int wacom_setup_pentouch_input_capabilities(struct
> > input_dev *input_dev,
> > 0, 0);
> > }
> > break;
> > + case BAMBOO_PAD:
> > + __clear_bit(ABS_MISC, input_dev->absbit);
> > + input_mt_init_slots(input_dev, features->touch_max,
> > + INPUT_MT_POINTER);
> > + __set_bit(BTN_LEFT, input_dev->keybit);
> > + __set_bit(BTN_RIGHT, input_dev->keybit);
> > + break;
> > }
> > return 0;
> > }
> > @@ -2953,6 +3007,12 @@ static const struct wacom_features
> > wacom_features_0x30C =
> > { "Wacom ISDv5 30C", .type = WACOM_24HDT, /* Touch */
> > .oVid = USB_VENDOR_ID_WACOM, .oPid = 0x30A, .touch_max = 10,
> > .check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
> > +static const struct wacom_features wacom_features_0x318 =
> > + { "Wacom USB Bamboo PAD", 4095, 4095, /* Touch */
> > + .type = BAMBOO_PAD, 35, 48, .touch_max = 4 };
> > +static const struct wacom_features wacom_features_0x319 =
> > + { "Wacom Wireless Bamboo PAD", 4095, 4095, /* Touch */
> > + .type = BAMBOO_PAD, 35, 48, .touch_max = 4 };
> > static const struct wacom_features wacom_features_0x323 =
> > { "Wacom Intuos P M", 21600, 13500, 1023, 31,
> > INTUOSHT, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
> > @@ -3101,6 +3161,8 @@ const struct hid_device_id wacom_ids[] = {
> > { USB_DEVICE_WACOM(0x314) },
> > { USB_DEVICE_WACOM(0x315) },
> > { USB_DEVICE_WACOM(0x317) },
> > + { USB_DEVICE_WACOM(0x318) },
> > + { USB_DEVICE_WACOM(0x319) },
> > { USB_DEVICE_WACOM(0x323) },
> > { USB_DEVICE_WACOM(0x32A) },
> > { USB_DEVICE_WACOM(0x32B) },
> > diff --git a/drivers/hid/wacom_wac.h b/drivers/hid/wacom_wac.h
> > index 021ee1c..bf43e0f 100644
> > --- a/drivers/hid/wacom_wac.h
> > +++ b/drivers/hid/wacom_wac.h
> > @@ -33,6 +33,7 @@
> > #define WACOM_PKGLEN_MTTPC 40
> > #define WACOM_PKGLEN_DTUS 68
> > #define WACOM_PKGLEN_PENABLED 8
> > +#define WACOM_PKGLEN_BP_TOUCH 32
> >
> > /* wacom data size per MT contact */
> > #define WACOM_BYTES_PER_MT_PACKET 11
> > @@ -67,6 +68,7 @@
> > #define WACOM_REPORT_24HDT 1
> > #define WACOM_REPORT_WL 128
> > #define WACOM_REPORT_USB 192
> > +#define WACOM_REPORT_BP_TOUCH 16
> >
> > /* device quirks */
> > #define WACOM_QUIRK_MULTI_INPUT 0x0001
> > @@ -122,6 +124,7 @@ enum {
> > BAMBOO_PT,
> > WACOM_24HDT,
> > WACOM_27QHDT,
> > + BAMBOO_PAD,
> > TABLETPC, /* add new TPC below */
> > TABLETPCE,
> > TABLETPC2FG,
> > --
> > 2.1.0
> >
> >
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Next message: Toshi Kani: "Re: [PATCH v2 6/7] x86, mm: Support huge I/O mappings on x86"
Previous message: Ingo Molnar: "Re: [PATCH v2 0/2] x86: loadflags cleanups"
In reply to: Peter Hutterer: "Re: [PATCH] HID: wacom: add full support of the Wacom Bamboo PAD"
Next in thread: Benjamin Tissoires: "Re: [PATCH] HID: wacom: add full support of the Wacom Bamboo PAD"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]