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authorJason Gerecke <killertofu@gmail.com>2017-11-10 11:50:00 -0800
committerJiri Kosina <jkosina@suse.cz>2017-11-21 13:04:35 +0100
commit99acedadde157a02b21761fd406ef7adc7615533 (patch)
tree879662a7a01241bf6b73b57a75fba91c4d56dfe8 /drivers/hid
parent20df15783a44a289aaa8c8f83b3f715f9040c9c2 (diff)
HID: wacom: Properly handle AES serial number and tool type
Current AES sensors relay tool type and serial number information with a different set of usages than those prescribed by the modern (i.e. MobileStudio Pro and newer) EMR tablet standard. To ensure the driver properly understands these usages, we modify them to be compatible. The identifying information is split across three consecutive fields: a 16-bit WACOM_HID_WT_SERIALNUMBER (which is more accurately described as WACOM_HID_WD_TOOLTYPE), a 32-bit HID_DG_TOOLSERIALNUMBER, and an 8-bit 0xFF000000 (which should be WACOM_HID_WD_SERIALHI). While we're at it, we also define proper min/max values since may may be undefined on some devices. Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
-rw-r--r--drivers/hid/wacom_wac.c42
-rw-r--r--drivers/hid/wacom_wac.h3
2 files changed, 36 insertions, 9 deletions
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 16af6886e828..ff679ee3b358 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -2086,6 +2086,27 @@ static void wacom_wac_pen_usage_mapping(struct hid_device *hdev,
break;
case HID_DG_TOOLSERIALNUMBER:
wacom_map_usage(input, usage, field, EV_MSC, MSC_SERIAL, 0);
+
+ /* Adjust AES usages to match modern convention */
+ if (usage->hid == WACOM_HID_WT_SERIALNUMBER && field->report_size == 16) {
+ if (field->index + 2 < field->report->maxfield) {
+ struct hid_field *a = field->report->field[field->index + 1];
+ struct hid_field *b = field->report->field[field->index + 2];
+
+ if (a->maxusage > 0 && a->usage[0].hid == HID_DG_TOOLSERIALNUMBER && a->report_size == 32 &&
+ b->maxusage > 0 && b->usage[0].hid == 0xFF000000 && b->report_size == 8) {
+ features->quirks |= WACOM_QUIRK_AESPEN;
+ usage->hid = WACOM_HID_WD_TOOLTYPE;
+ field->logical_minimum = S16_MIN;
+ field->logical_maximum = S16_MAX;
+ a->logical_minimum = S32_MIN;
+ a->logical_maximum = S32_MAX;
+ b->usage[0].hid = WACOM_HID_WD_SERIALHI;
+ b->logical_minimum = 0;
+ b->logical_maximum = U8_MAX;
+ }
+ }
+ }
break;
case WACOM_HID_WD_SENSE:
features->quirks |= WACOM_QUIRK_SENSE;
@@ -2093,15 +2114,18 @@ static void wacom_wac_pen_usage_mapping(struct hid_device *hdev,
break;
case WACOM_HID_WD_SERIALHI:
wacom_map_usage(input, usage, field, EV_ABS, ABS_MISC, 0);
- set_bit(EV_KEY, input->evbit);
- input_set_capability(input, EV_KEY, BTN_TOOL_PEN);
- input_set_capability(input, EV_KEY, BTN_TOOL_RUBBER);
- input_set_capability(input, EV_KEY, BTN_TOOL_BRUSH);
- input_set_capability(input, EV_KEY, BTN_TOOL_PENCIL);
- input_set_capability(input, EV_KEY, BTN_TOOL_AIRBRUSH);
- if (!(features->device_type & WACOM_DEVICETYPE_DIRECT)) {
- input_set_capability(input, EV_KEY, BTN_TOOL_MOUSE);
- input_set_capability(input, EV_KEY, BTN_TOOL_LENS);
+
+ if (!(features->quirks & WACOM_QUIRK_AESPEN)) {
+ set_bit(EV_KEY, input->evbit);
+ input_set_capability(input, EV_KEY, BTN_TOOL_PEN);
+ input_set_capability(input, EV_KEY, BTN_TOOL_RUBBER);
+ input_set_capability(input, EV_KEY, BTN_TOOL_BRUSH);
+ input_set_capability(input, EV_KEY, BTN_TOOL_PENCIL);
+ input_set_capability(input, EV_KEY, BTN_TOOL_AIRBRUSH);
+ if (!(features->device_type & WACOM_DEVICETYPE_DIRECT)) {
+ input_set_capability(input, EV_KEY, BTN_TOOL_MOUSE);
+ input_set_capability(input, EV_KEY, BTN_TOOL_LENS);
+ }
}
break;
case WACOM_HID_WD_FINGERWHEEL:
diff --git a/drivers/hid/wacom_wac.h b/drivers/hid/wacom_wac.h
index 64d8f014602e..6fe6d60f9ab5 100644
--- a/drivers/hid/wacom_wac.h
+++ b/drivers/hid/wacom_wac.h
@@ -86,6 +86,7 @@
/* device quirks */
#define WACOM_QUIRK_BBTOUCH_LOWRES 0x0001
#define WACOM_QUIRK_SENSE 0x0002
+#define WACOM_QUIRK_AESPEN 0x0004
#define WACOM_QUIRK_BATTERY 0x0008
/* device types */
@@ -107,6 +108,7 @@
#define WACOM_HID_WD_PEN (WACOM_HID_UP_WACOMDIGITIZER | 0x02)
#define WACOM_HID_WD_SENSE (WACOM_HID_UP_WACOMDIGITIZER | 0x36)
#define WACOM_HID_WD_DIGITIZERFNKEYS (WACOM_HID_UP_WACOMDIGITIZER | 0x39)
+#define WACOM_HID_WD_SERIALNUMBER (WACOM_HID_UP_WACOMDIGITIZER | 0x5b)
#define WACOM_HID_WD_SERIALHI (WACOM_HID_UP_WACOMDIGITIZER | 0x5c)
#define WACOM_HID_WD_TOOLTYPE (WACOM_HID_UP_WACOMDIGITIZER | 0x77)
#define WACOM_HID_WD_DISTANCE (WACOM_HID_UP_WACOMDIGITIZER | 0x0132)
@@ -150,6 +152,7 @@
#define WACOM_HID_WT_TOUCHSCREEN (WACOM_HID_UP_WACOMTOUCH | 0x04)
#define WACOM_HID_WT_TOUCHPAD (WACOM_HID_UP_WACOMTOUCH | 0x05)
#define WACOM_HID_WT_CONTACTMAX (WACOM_HID_UP_WACOMTOUCH | 0x55)
+#define WACOM_HID_WT_SERIALNUMBER (WACOM_HID_UP_WACOMTOUCH | 0x5b)
#define WACOM_HID_WT_X (WACOM_HID_UP_WACOMTOUCH | 0x130)
#define WACOM_HID_WT_Y (WACOM_HID_UP_WACOMTOUCH | 0x131)

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