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Input: wacom - add support for Bamboo Pen

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This adds support for Pen on Bamboo Pen and Bamboo Pen&Touch devices.
Touchpad is handled by previous Bamboo Touch logic.

Signed-off-by: Chris Bagwell <chris@cnpbagwell.com>
Acked-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Chris Bagwell 2010-09-12 00:11:35 -07:00 committed by Dmitry Torokhov
parent e1d38e49ad
commit 2aaacb1536
1 changed files with 79 additions and 0 deletions
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79
drivers/input/tablet/wacom_wac.c
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@ -904,10 +904,75 @@ static int wacom_bpt_touch(struct wacom_wac *wacom)
return 0;
}
static int wacom_bpt_pen(struct wacom_wac *wacom)
{
struct input_dev *input = wacom->input;
unsigned char *data = wacom->data;
int prox = 0, x = 0, y = 0, p = 0, d = 0, pen = 0, btn1 = 0, btn2 = 0;
/*
* Similar to Graphire protocol, data[1] & 0x20 is proximity and
* data[1] & 0x18 is tool ID. 0x30 is safety check to ignore
* 2 unused tool ID's.
*/
prox = (data[1] & 0x30) == 0x30;
/*
* All reports shared between PEN and RUBBER tool must be
* forced to a known starting value (zero) when transitioning to
* out-of-prox.
*
* If not reset then, to userspace, it will look like lost events
* if new tool comes in-prox with same values as previous tool sent.
*
* Hardware does report zero in most out-of-prox cases but not all.
*/
if (prox) {
if (!wacom->shared->stylus_in_proximity) {
if (data[1] & 0x08) {
wacom->tool[0] = BTN_TOOL_RUBBER;
wacom->id[0] = ERASER_DEVICE_ID;
} else {
wacom->tool[0] = BTN_TOOL_PEN;
wacom->id[0] = STYLUS_DEVICE_ID;
}
wacom->shared->stylus_in_proximity = true;
}
x = le16_to_cpup((__le16 *)&data[2]);
y = le16_to_cpup((__le16 *)&data[4]);
p = le16_to_cpup((__le16 *)&data[6]);
d = data[8];
pen = data[1] & 0x01;
btn1 = data[1] & 0x02;
btn2 = data[1] & 0x04;
}
input_report_key(input, BTN_TOUCH, pen);
input_report_key(input, BTN_STYLUS, btn1);
input_report_key(input, BTN_STYLUS2, btn2);
input_report_abs(input, ABS_X, x);
input_report_abs(input, ABS_Y, y);
input_report_abs(input, ABS_PRESSURE, p);
input_report_abs(input, ABS_DISTANCE, d);
if (!prox) {
wacom->id[0] = 0;
wacom->shared->stylus_in_proximity = false;
}
input_report_key(input, wacom->tool[0], prox); /* PEN or RUBBER */
input_report_abs(input, ABS_MISC, wacom->id[0]); /* TOOL ID */
return 1;
}
static int wacom_bpt_irq(struct wacom_wac *wacom, size_t len)
{
if (len == WACOM_PKGLEN_BBTOUCH)
return wacom_bpt_touch(wacom);
else if (len == WACOM_PKGLEN_BBFUN)
return wacom_bpt_pen(wacom);
return 0;
}
@ -1193,6 +1258,11 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
features->pressure_fuzz, 0);
input_set_abs_params(input_dev, ABS_MT_TRACKING_ID, 0,
MAX_TRACKING_ID, 0, 0);
} else if (features->device_type == BTN_TOOL_PEN) {
__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
__set_bit(BTN_TOOL_PEN, input_dev->keybit);
__set_bit(BTN_STYLUS, input_dev->keybit);
__set_bit(BTN_STYLUS2, input_dev->keybit);
}
break;
}
@ -1334,6 +1404,12 @@ static const struct wacom_features wacom_features_0x47 =
{ "Wacom Intuos2 6x8", WACOM_PKGLEN_INTUOS, 20320, 16240, 1023, 31, INTUOS };
static struct wacom_features wacom_features_0xD0 =
{ "Wacom Bamboo 2FG", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT };
static struct wacom_features wacom_features_0xD1 =
{ "Wacom Bamboo 2FG 4x5", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT };
static struct wacom_features wacom_features_0xD2 =
{ "Wacom Bamboo Craft", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT };
static struct wacom_features wacom_features_0xD3 =
{ "Wacom Bamboo 2FG 6x8", WACOM_PKGLEN_BBFUN, 21648, 13530, 1023, 63, BAMBOO_PT };
#define USB_DEVICE_WACOM(prod) \
USB_DEVICE(USB_VENDOR_ID_WACOM, prod), \
@ -1399,6 +1475,9 @@ const struct usb_device_id wacom_ids[] = {
{ USB_DEVICE_WACOM(0xC7) },
{ USB_DEVICE_WACOM(0xCE) },
{ USB_DEVICE_WACOM(0xD0) },
{ USB_DEVICE_WACOM(0xD1) },
{ USB_DEVICE_WACOM(0xD2) },
{ USB_DEVICE_WACOM(0xD3) },
{ USB_DEVICE_WACOM(0xF0) },
{ USB_DEVICE_WACOM(0xCC) },
{ USB_DEVICE_WACOM(0x90) },