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HID: multitouch: add support of other generic collections in hid-mt

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The ANTON Touch Pad is a device which can switch from a multitouch
touchpad to a mouse. It thus presents several generic collections which
are currently ignored by hid-multitouch. Enable them by not ignoring
them in mt_input_mapping.
Adding also a suffix for them depending on their application.

Reported-by: Edel Maks <edelmaks@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Benjamin Tissoires 2014-02-28 11:41:25 -05:00 committed by Jiri Kosina
parent e55f620086
commit 6aef704e38
3 changed files with 82 additions and 6 deletions
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3
drivers/hid/hid-ids.h
View File

@ -67,6 +67,9 @@
#define USB_VENDOR_ID_ALPS 0x0433
#define USB_DEVICE_ID_IBM_GAMEPAD 0x1101
#define USB_VENDOR_ID_ANTON 0x1130
#define USB_DEVICE_ID_ANTON_TOUCH_PAD 0x3101
#define USB_VENDOR_ID_APPLE 0x05ac
#define USB_DEVICE_ID_APPLE_MIGHTYMOUSE 0x0304
#define USB_DEVICE_ID_APPLE_MAGICMOUSE 0x030d

82
drivers/hid/hid-multitouch.c
View File

@ -84,6 +84,7 @@ struct mt_class {
__s32 sn_pressure; /* Signal/noise ratio for pressure events */
__u8 maxcontacts;
bool is_indirect; /* true for touchpads */
bool export_all_inputs; /* do not ignore mouse, keyboards, etc... */
};
struct mt_fields {
@ -133,6 +134,7 @@ static void mt_post_parse(struct mt_device *td);
/* reserved 0x0010 */
/* reserved 0x0011 */
#define MT_CLS_WIN_8 0x0012
#define MT_CLS_EXPORT_ALL_INPUTS 0x0013
/* vendor specific classes */
#define MT_CLS_3M 0x0101
@ -196,6 +198,10 @@ static struct mt_class mt_classes[] = {
MT_QUIRK_IGNORE_DUPLICATES |
MT_QUIRK_HOVERING |
MT_QUIRK_CONTACT_CNT_ACCURATE },
{ .name = MT_CLS_EXPORT_ALL_INPUTS,
.quirks = MT_QUIRK_ALWAYS_VALID |
MT_QUIRK_CONTACT_CNT_ACCURATE,
.export_all_inputs = true },
/*
* vendor specific classes
@ -718,28 +724,52 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
/* Only map fields from TouchScreen or TouchPad collections.
* We need to ignore fields that belong to other collections
* such as Mouse that might have the same GenericDesktop usages. */
if (field->application != HID_DG_TOUCHSCREEN &&
struct mt_device *td = hid_get_drvdata(hdev);
/*
* If mtclass.export_all_inputs is not set, only map fields from
* TouchScreen or TouchPad collections. We need to ignore fields
* that belong to other collections such as Mouse that might have
* the same GenericDesktop usages.
*/
if (!td->mtclass.export_all_inputs &&
field->application != HID_DG_TOUCHSCREEN &&
field->application != HID_DG_PEN &&
field->application != HID_DG_TOUCHPAD)
return -1;
/*
* some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
* for the stylus.
*/
if (field->physical == HID_DG_STYLUS)
return 0;
return mt_touch_input_mapping(hdev, hi, field, usage, bit, max);
if (field->application == HID_DG_TOUCHSCREEN ||
field->application == HID_DG_TOUCHPAD)
return mt_touch_input_mapping(hdev, hi, field, usage, bit, max);
/* let hid-core decide for the others */
return 0;
}
static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
/*
* some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
* for the stylus.
*/
if (field->physical == HID_DG_STYLUS)
return 0;
return mt_touch_input_mapped(hdev, hi, field, usage, bit, max);
if (field->application == HID_DG_TOUCHSCREEN ||
field->application == HID_DG_TOUCHPAD)
return mt_touch_input_mapped(hdev, hi, field, usage, bit, max);
/* let hid-core decide for the others */
return 0;
}
static int mt_event(struct hid_device *hid, struct hid_field *field,
@ -846,14 +876,49 @@ static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
struct mt_device *td = hid_get_drvdata(hdev);
char *name;
const char *suffix = NULL;
struct hid_field *field = hi->report->field[0];
if (hi->report->id == td->mt_report_id)
mt_touch_input_configured(hdev, hi);
/*
* some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
* for the stylus. Check this first, and then rely on the application
* field.
*/
if (hi->report->field[0]->physical == HID_DG_STYLUS) {
suffix = "Pen";
/* force BTN_STYLUS to allow tablet matching in udev */
__set_bit(BTN_STYLUS, hi->input->keybit);
} else {
switch (field->application) {
case HID_GD_KEYBOARD:
suffix = "Keyboard";
break;
case HID_GD_KEYPAD:
suffix = "Keypad";
break;
case HID_GD_MOUSE:
suffix = "Mouse";
break;
case HID_DG_STYLUS:
suffix = "Pen";
/* force BTN_STYLUS to allow tablet matching in udev */
__set_bit(BTN_STYLUS, hi->input->keybit);
break;
case HID_DG_TOUCHSCREEN:
/* we do not set suffix = "Touchscreen" */
break;
case HID_GD_SYSTEM_CONTROL:
suffix = "System Control";
break;
case HID_CP_CONSUMER_CONTROL:
suffix = "Consumer Control";
break;
default:
suffix = "UNKNOWN";
break;
}
}
if (suffix) {
@ -992,6 +1057,11 @@ static const struct hid_device_id mt_devices[] = {
MT_USB_DEVICE(USB_VENDOR_ID_3M,
USB_DEVICE_ID_3M3266) },
/* Anton devices */
{ .driver_data = MT_CLS_EXPORT_ALL_INPUTS,
MT_USB_DEVICE(USB_VENDOR_ID_ANTON,
USB_DEVICE_ID_ANTON_TOUCH_PAD) },
/* Atmel panels */
{ .driver_data = MT_CLS_SERIAL,
MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,

3
include/linux/hid.h
View File

@ -201,6 +201,7 @@ struct hid_item {
#define HID_GD_VBRZ 0x00010045
#define HID_GD_VNO 0x00010046
#define HID_GD_FEATURE 0x00010047
#define HID_GD_SYSTEM_CONTROL 0x00010080
#define HID_GD_UP 0x00010090
#define HID_GD_DOWN 0x00010091
#define HID_GD_RIGHT 0x00010092
@ -208,6 +209,8 @@ struct hid_item {
#define HID_DC_BATTERYSTRENGTH 0x00060020
#define HID_CP_CONSUMER_CONTROL 0x000c0001
#define HID_DG_DIGITIZER 0x000d0001
#define HID_DG_PEN 0x000d0002
#define HID_DG_LIGHTPEN 0x000d0003