From: Chris Bagwell <ch...@cnpbagwell.com>
This allows new tochpad/touchscreens to be supported
without modifications to xf86-input-wacom.
BTN_TOOL_FINGER/DOUBLETAP/TRIPLETAP have incompatible meanings
between generic and protocol 4/5 devices. Add logic to detect
generic devices very early and override default value of
wcmProtocolLevel to help out wcmKeys parsing.
Newer touchscreens will work in relative mode because currently only
tablet_id informs this. Generic protocols may eventually have
something in kernel that can be queried for touchscreen vs.
touchpad.
Signed-off-by: Chris Bagwell <ch...@cnpbagwell.com>
---
src/wcmUSB.c | 15 +++++++++++++++
src/wcmValidateDevice.c | 33 +++++++++++++++++++++------------
2 files changed, 36 insertions(+), 12 deletions(-)
diff --git a/src/wcmUSB.c b/src/wcmUSB.c
index c25e67c..765b41e 100644
--- a/src/wcmUSB.c
+++ b/src/wcmUSB.c
@@ -1364,6 +1364,7 @@ static int usbProbeKeys(InputInfoPtr pInfo)
struct input_id wacom_id;
WacomDevicePtr priv = (WacomDevicePtr)pInfo->private;
WacomCommonPtr common = priv->common;
+ unsigned long abs[NBITS(ABS_MAX)] = {0};
if (ioctl(pInfo->fd, EVIOCGBIT(EV_KEY, (sizeof(unsigned long)
* NBITS(KEY_MAX))),
common->wcmKeys) < 0)
@@ -1380,6 +1381,20 @@ static int usbProbeKeys(InputInfoPtr pInfo)
return 0;
}
+ if (ioctl(pInfo->fd, EVIOCGBIT(EV_ABS, sizeof(abs)), abs) < 0)
+ {
+ xf86Msg(X_ERROR, "%s: usbProbeKeys unable to ioctl "
+ "abs bits.\n", pInfo->name);
+ return 0;
+ }
+
+ /* The wcmKeys stored above have different meaning for generic
+ * protocol. Detect that and change default protocol 4 to
+ * generic.
+ */
+ if (!ISBITSET(abs, ABS_MISC))
+ common->wcmProtocolLevel = WCM_PROTOCOL_GENERIC;
+
return wacom_id.product;
}
diff --git a/src/wcmValidateDevice.c b/src/wcmValidateDevice.c
index b7312a3..e3764a4 100644
--- a/src/wcmValidateDevice.c
+++ b/src/wcmValidateDevice.c
@@ -256,28 +256,16 @@ int wcmDeviceTypeKeys(InputInfoPtr pInfo)
case 0xE3: /* TPC with 2FGT */
priv->common->tablet_type = WCM_TPC;
priv->common->tablet_type |= WCM_LCD;
- /* fall through */
- case 0xD0: /* Bamboo with 2FGT */
- case 0xD1: /* Bamboo with 2FGT */
- case 0xD2: /* Bamboo with 2FGT */
- case 0xD3: /* Bamboo with 2FGT */
- case 0xD8: /* Bamboo with 2FGT */
- case 0xDA: /* Bamboo with 2FGT */
- case 0xDB: /* Bamboo with 2FGT */
- priv->common->tablet_type |= WCM_2FGT;
break;
case 0x93: /* TPC with 1FGT */
case 0x9A: /* TPC with 1FGT */
- priv->common->tablet_type = WCM_1FGT;
- /* fall through */
case 0x90: /* TPC */
priv->common->tablet_type |= WCM_TPC;
priv->common->tablet_type |= WCM_LCD;
break;
case 0x9F:
- priv->common->tablet_type = WCM_1FGT;
priv->common->tablet_type |= WCM_LCD;
break;
@@ -291,6 +279,27 @@ int wcmDeviceTypeKeys(InputInfoPtr pInfo)
priv->common->tablet_type |= WCM_PAD;
}
+ /* This handles both protocol 4 and 5 meanings of wcmKeys */
+ if (common->wcmProtocolLevel == WCM_PROTOCOL_4)
+ {
+ /* TRIPLETAP means 2 finger touch */
+ /* DOUBLETAP without TRIPLETAP means 1 finger touch */
+ if (ISBITSET(common->wcmKeys, BTN_TOOL_TRIPLETAP))
+ priv->common->tablet_type |= WCM_2FGT;
+ else if (ISBITSET(common->wcmKeys, BTN_TOOL_DOUBLETAP))
+ priv->common->tablet_type |= WCM_1FGT;
+ }
+
+ if (common->wcmProtocolLevel == WCM_PROTOCOL_GENERIC)
+ {
+ /* DOUBLETAP means 2 finger touch */
+ /* FINGER without DOUBLETAP means 1 finger touch */
+ if (ISBITSET(common->wcmKeys, BTN_TOOL_DOUBLETAP))
+ priv->common->tablet_type |= WCM_2FGT;
+ else if (ISBITSET(common->wcmKeys, BTN_TOOL_FINGER))
+ priv->common->tablet_type |= WCM_1FGT;
+ }
+
return ret;
}
--
1.7.3.4
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