6  *  HID char devices, giving access to raw HID device events.
22 #include <linux/hid.h>
56 hiddev_lookup_report(struct hid_device *hid, struct hiddev_report_info *rinfo)  in hiddev_lookup_report()  argument
68 	report_enum = hid->report_enum +  in hiddev_lookup_report()
109 hiddev_lookup_usage(struct hid_device *hid, struct hiddev_usage_ref *uref)  in hiddev_lookup_usage()  argument
120 	report_enum = hid->report_enum +  in hiddev_lookup_usage()
127 				if (field->usage[j].hid == uref->usage_code) {  in hiddev_lookup_usage()
140 static void hiddev_send_event(struct hid_device *hid,  in hiddev_send_event()  argument
143 	struct hiddev *hiddev = hid->hiddev;  in hiddev_send_event()
163  * This is where hid.c calls into hiddev to pass an event that occurred over
166 void hiddev_hid_event(struct hid_device *hid, struct hid_field *field,  in hiddev_hid_event()  argument
179 	uref.usage_code = usage->hid;  in hiddev_hid_event()
182 	hiddev_send_event(hid, &uref);  in hiddev_hid_event()
186 void hiddev_report_event(struct hid_device *hid, struct hid_report *report)  in hiddev_report_event()  argument
199 	hiddev_send_event(hid, &uref);  in hiddev_report_event()
228 			hid_hw_close(list->hiddev->hid);  in hiddev_release()
229 			hid_hw_power(list->hiddev->hid, PM_HINT_NORMAL);  in hiddev_release()
259 		error = hid_hw_power(hiddev->hid, PM_HINT_FULLON);  in __hiddev_open()
263 		error = hid_hw_open(hiddev->hid);  in __hiddev_open()
277 	hid_hw_power(hiddev->hid, PM_HINT_NORMAL);  in __hiddev_open()
290 	struct hid_device *hid;  in hiddev_open()  local
298 	hid = usb_get_intfdata(intf);  in hiddev_open()
299 	hiddev = hid->hiddev;  in hiddev_open()
380 					event.hid = list->buffer[list->tail].usage_code;  in hiddev_read()
429 	struct hid_device *hid = hiddev->hid;  in hiddev_ioctl_usage()  local
454 		if ((report = hiddev_lookup_report(hid, &rinfo)) == NULL)  in hiddev_ioctl_usage()
468 		uref->usage_code = field->usage[uref->usage_index].hid;  in hiddev_ioctl_usage()
482 			field = hiddev_lookup_usage(hid, uref);  in hiddev_ioctl_usage()
488 			if ((report = hiddev_lookup_report(hid, &rinfo)) == NULL)  in hiddev_ioctl_usage()
568 	struct hid_device *hid = hiddev->hid;  in hiddev_ioctl_string()  local
569 	struct usb_device *dev = hid_to_usb_dev(hid);  in hiddev_ioctl_string()
598 	struct hid_device *hid;  in hiddev_ioctl()  local
616 	hid = hiddev->hid;  in hiddev_ioctl()
626 		if (arg >= hid->maxapplication)  in hiddev_ioctl()
629 		for (i = 0; i < hid->maxcollection; i++)  in hiddev_ioctl()
630 			if (hid->collection[i].type ==  in hiddev_ioctl()
634 		if (i < hid->maxcollection)  in hiddev_ioctl()
635 			r = hid->collection[i].usage;  in hiddev_ioctl()
640 			struct usb_device *dev = hid_to_usb_dev(hid);  in hiddev_ioctl()
641 			struct usbhid_device *usbhid = hid->driver_data;  in hiddev_ioctl()
652 			dinfo.num_applications = hid->maxapplication;  in hiddev_ioctl()
689 		usbhid_init_reports(hid);  in hiddev_ioctl()
703 		report = hiddev_lookup_report(hid, &rinfo);  in hiddev_ioctl()
707 		hid_hw_request(hid, report, HID_REQ_GET_REPORT);  in hiddev_ioctl()
708 		hid_hw_wait(hid);  in hiddev_ioctl()
722 		report = hiddev_lookup_report(hid, &rinfo);  in hiddev_ioctl()
726 		hid_hw_request(hid, report, HID_REQ_SET_REPORT);  in hiddev_ioctl()
727 		hid_hw_wait(hid);  in hiddev_ioctl()
738 		report = hiddev_lookup_report(hid, &rinfo);  in hiddev_ioctl()
757 		report = hiddev_lookup_report(hid, &rinfo);  in hiddev_ioctl()
794 			usbhid_init_reports(hid);  in hiddev_ioctl()
806 		if (cinfo.index >= hid->maxcollection)  in hiddev_ioctl()
809 						 hid->maxcollection);  in hiddev_ioctl()
811 		cinfo.type = hid->collection[cinfo.index].type;  in hiddev_ioctl()
812 		cinfo.usage = hid->collection[cinfo.index].usage;  in hiddev_ioctl()
813 		cinfo.level = hid->collection[cinfo.index].level;  in hiddev_ioctl()
824 			int len = strlen(hid->name) + 1;  in hiddev_ioctl()
827 			r = copy_to_user(user_arg, hid->name, len) ?  in hiddev_ioctl()
833 			int len = strlen(hid->phys) + 1;  in hiddev_ioctl()
836 			r = copy_to_user(user_arg, hid->phys, len) ?  in hiddev_ioctl()
873  * This is where hid.c calls us to connect a hid device to the hiddev driver
875 int hiddev_connect(struct hid_device *hid, unsigned int force)  in hiddev_connect()  argument
878 	struct usbhid_device *usbhid = hid->driver_data;  in hiddev_connect()
883 		for (i = 0; i < hid->maxcollection; i++)  in hiddev_connect()
884 			if (hid->collection[i].type ==  in hiddev_connect()
886 			    !IS_INPUT_APPLICATION(hid->collection[i].usage))  in hiddev_connect()
889 		if (i == hid->maxcollection)  in hiddev_connect()
900 	hid->hiddev = hiddev;  in hiddev_connect()
901 	hiddev->hid = hid;  in hiddev_connect()
905 		hid_err(hid, "Not able to get a minor for this device\n");  in hiddev_connect()
906 		hid->hiddev = NULL;  in hiddev_connect()
915 	hiddev->initialized = hid->quirks & HID_QUIRK_NO_INIT_REPORTS;  in hiddev_connect()
923  * This is where hid.c calls us to disconnect a hiddev device from the
924  * corresponding hid device (usually because the usb device has disconnected)
927 void hiddev_disconnect(struct hid_device *hid)  in hiddev_disconnect()  argument
929 	struct hiddev *hiddev = hid->hiddev;  in hiddev_disconnect()
930 	struct usbhid_device *usbhid = hid->driver_data;  in hiddev_disconnect()
938 		hid_hw_close(hiddev->hid);  in hiddev_disconnect()