drivers/hid/hid-multitouch.c

10  *  This code is partly based on hid-egalax.c:
16  *  This code is partly based on hid-3m-pct.c:
27  * This driver is regularly tested thanks to the test suite in hid-tools[1].
31  * [1] https://gitlab.freedesktop.org/libevdev/hid-tools
35 #include <linux/hid.h>
49 #include "hid-ids.h"
484 	switch (usage->hid) {
638 				if (field->usage[n].hid == HID_DG_CONTACTID) {
728 	    (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
734 	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)
740 	switch (usage->hid & HID_USAGE_PAGE) {
743 		switch (usage->hid) {
745 			if (prev_usage && (prev_usage->hid == usage->hid)) {
770 			if (prev_usage && (prev_usage->hid == usage->hid)) {
785 		switch (usage->hid) {
877 		/* let hid-input decide for the others */
881 		code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
888 		    (usage->hid & HID_USAGE) > 1)
892 			code = BTN_0  + ((usage->hid - 1) & HID_USAGE);
997 static int mt_touch_event(struct hid_device *hid, struct hid_field *field,
1001 	if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
1002 		hid->hiddev_hid_event(hid, field, usage, value);
1155 static void mt_process_mt_event(struct hid_device *hid,
1165 	if (!usage->type || !(hid->claimed & HID_CLAIMED_INPUT))
1194 static void mt_touch_report(struct hid_device *hid,
1197 	struct mt_device *td = hid_get_drvdata(hid);
1257 			mt_process_mt_event(hid, app, field,
1383 	    (usage->hid & HID_USAGE_PAGE) == HID_UP_CUSTOM) {
1387 		switch (usage->hid & HID_USAGE) {
1410 	/* let hid-core decide for the others */
1423 		/* We own these mappings, tell hid-input to ignore them */
1427 	/* let hid-core decide for the others */
1431 static int mt_event(struct hid_device *hid, struct hid_field *field,
1434 	struct mt_device *td = hid_get_drvdata(hid);
1439 		return mt_touch_event(hid, field, usage, value);
1444 static void mt_report(struct hid_device *hid, struct hid_report *report)
1446 	struct mt_device *td = hid_get_drvdata(hid);
1450 	if (!(hid->claimed & HID_CLAIMED_INPUT))
1455 		return mt_touch_report(hid, rdata);
1477 	switch (usage->hid) {
1628 		/* already handled by hid core */
1655 	if (field->usage[0].hid != usage ||
1681 static void mt_release_contacts(struct hid_device *hid)
1685 	struct mt_device *td = hid_get_drvdata(hid);
1687 	list_for_each_entry(hidinput, &hid->inputs, list) {
2255 MODULE_DEVICE_TABLE(hid, mt_devices);
2263 	.name = "hid-multitouch",