73 static void lg4ff_set_range_dfp(struct hid_device *hid, u16 range);
74 static void lg4ff_set_range_g25(struct hid_device *hid, u16 range);
91 	void (*set_range)(struct hid_device *hid, u16 range);
111 	void (*set_range)(struct hid_device *hid, u16 range);
307 int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field,  in lg4ff_adjust_input_event()  argument
314 		hid_err(hid, "Device properties not found");  in lg4ff_adjust_input_event()
414 	struct hid_device *hid = input_get_drvdata(dev);  in lg4ff_play()  local
421 	drv_data = hid_get_drvdata(hid);  in lg4ff_play()
423 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_play()
429 		hid_err(hid, "Device properties not found!\n");  in lg4ff_play()
452 			hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_play()
465 		hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_play()
476 	struct hid_device *hid = input_get_drvdata(dev);  in lg4ff_set_autocenter_default()  local
483 	drv_data = hid_get_drvdata(hid);  in lg4ff_set_autocenter_default()
485 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_set_autocenter_default()
491 		hid_err(hid, "Device properties not found!\n");  in lg4ff_set_autocenter_default()
507 		hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_autocenter_default()
538 	hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_autocenter_default()
549 	hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_autocenter_default()
556 	struct hid_device *hid = input_get_drvdata(dev);  in lg4ff_set_autocenter_ffex()  local
563 	drv_data = hid_get_drvdata(hid);  in lg4ff_set_autocenter_ffex()
565 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_set_autocenter_ffex()
571 		hid_err(hid, "Device properties not found!\n");  in lg4ff_set_autocenter_ffex()
585 	hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_autocenter_ffex()
590 static void lg4ff_set_range_g25(struct hid_device *hid, u16 range)  in lg4ff_set_range_g25()  argument
597 	drv_data = hid_get_drvdata(hid);  in lg4ff_set_range_g25()
599 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_set_range_g25()
605 		hid_err(hid, "Device properties not found!\n");  in lg4ff_set_range_g25()
620 	hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_range_g25()
625 static void lg4ff_set_range_dfp(struct hid_device *hid, u16 range)  in lg4ff_set_range_dfp()  argument
633 	drv_data = hid_get_drvdata(hid);  in lg4ff_set_range_dfp()
635 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_set_range_dfp()
641 		hid_err(hid, "Device properties not found!\n");  in lg4ff_set_range_dfp()
664 	hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_range_dfp()
676 		hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_range_dfp()
691 	hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_range_dfp()
769 static int lg4ff_switch_compatibility_mode(struct hid_device *hid, const struct lg4ff_compat_mode_s…  in lg4ff_switch_compatibility_mode()  argument
777 	drv_data = hid_get_drvdata(hid);  in lg4ff_switch_compatibility_mode()
779 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_switch_compatibility_mode()
785 		hid_err(hid, "Device properties not found!\n");  in lg4ff_switch_compatibility_mode()
797 		hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_switch_compatibility_mode()
800 	hid_hw_wait(hid);  in lg4ff_switch_compatibility_mode()
806 	struct hid_device *hid = to_hid_device(dev);  in lg4ff_alternate_modes_show()  local
812 	drv_data = hid_get_drvdata(hid);  in lg4ff_alternate_modes_show()
814 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_alternate_modes_show()
820 		hid_err(hid, "Device properties not found!\n");  in lg4ff_alternate_modes_show()
825 		hid_err(hid, "NULL pointer to string\n");  in lg4ff_alternate_modes_show()
855 	struct hid_device *hid = to_hid_device(dev);  in lg4ff_alternate_modes_store()  local
863 	drv_data = hid_get_drvdata(hid);  in lg4ff_alternate_modes_store()
865 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_alternate_modes_store()
871 		hid_err(hid, "Device properties not found!\n");  in lg4ff_alternate_modes_store()
905 		hid_info(hid, "Requested mode \"%s\" is not supported by the device\n", lbuf);  in lg4ff_alternate_modes_store()
916 …hid_info(hid, "\"%s\" cannot be switched to \"DF-EX\" mode. Load the \"hid_logitech\" module with …  in lg4ff_alternate_modes_store()
924 …hid_info(hid, "\"%s\" cannot be switched back into \"%s\" mode\n", entry->wdata.real_name, lg4ff_a…  in lg4ff_alternate_modes_store()
930 		hid_err(hid, "Invalid target product ID %X\n", target_product_id);  in lg4ff_alternate_modes_store()
934 	ret = lg4ff_switch_compatibility_mode(hid, s);  in lg4ff_alternate_modes_store()
942 	struct hid_device *hid = to_hid_device(dev);  in lg4ff_combine_show()  local
947 	drv_data = hid_get_drvdata(hid);  in lg4ff_combine_show()
949 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_combine_show()
955 		hid_err(hid, "Device properties not found!\n");  in lg4ff_combine_show()
966 	struct hid_device *hid = to_hid_device(dev);  in lg4ff_combine_store()  local
971 	drv_data = hid_get_drvdata(hid);  in lg4ff_combine_store()
973 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_combine_store()
979 		hid_err(hid, "Device properties not found!\n");  in lg4ff_combine_store()
995 	struct hid_device *hid = to_hid_device(dev);  in lg4ff_range_show()  local
1000 	drv_data = hid_get_drvdata(hid);  in lg4ff_range_show()
1002 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_range_show()
1008 		hid_err(hid, "Device properties not found!\n");  in lg4ff_range_show()
1021 	struct hid_device *hid = to_hid_device(dev);  in lg4ff_range_store()  local
1026 	drv_data = hid_get_drvdata(hid);  in lg4ff_range_store()
1028 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_range_store()
1034 		hid_err(hid, "Device properties not found!\n");  in lg4ff_range_store()
1044 		entry->wdata.set_range(hid, range);  in lg4ff_range_store()
1054 	struct hid_device *hid = to_hid_device(dev);  in lg4ff_real_id_show()  local
1059 	drv_data = hid_get_drvdata(hid);  in lg4ff_real_id_show()
1061 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_real_id_show()
1067 		hid_err(hid, "Device properties not found!\n");  in lg4ff_real_id_show()
1072 		hid_err(hid, "NULL pointer to string\n");  in lg4ff_real_id_show()
1088 static void lg4ff_set_leds(struct hid_device *hid, u8 leds)  in lg4ff_set_leds()  argument
1095 	drv_data = hid_get_drvdata(hid);  in lg4ff_set_leds()
1097 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_set_leds()
1103 		hid_err(hid, "Device properties not found!\n");  in lg4ff_set_leds()
1116 	hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_leds()
1124 	struct hid_device *hid = to_hid_device(dev);  in lg4ff_led_set_brightness()  local
1125 	struct lg_drv_data *drv_data = hid_get_drvdata(hid);  in lg4ff_led_set_brightness()
1130 		hid_err(hid, "Device data not found.");  in lg4ff_led_set_brightness()
1137 		hid_err(hid, "Device properties not found.");  in lg4ff_led_set_brightness()
1147 			lg4ff_set_leds(hid, entry->wdata.led_state);  in lg4ff_led_set_brightness()
1150 			lg4ff_set_leds(hid, entry->wdata.led_state);  in lg4ff_led_set_brightness()
1159 	struct hid_device *hid = to_hid_device(dev);  in lg4ff_led_get_brightness()  local
1160 	struct lg_drv_data *drv_data = hid_get_drvdata(hid);  in lg4ff_led_get_brightness()
1165 		hid_err(hid, "Device data not found.");  in lg4ff_led_get_brightness()
1172 		hid_err(hid, "Device properties not found.");  in lg4ff_led_get_brightness()
1186 static u16 lg4ff_identify_multimode_wheel(struct hid_device *hid, const u16 reported_product_id, co…  in lg4ff_identify_multimode_wheel()  argument
1221 static int lg4ff_handle_multimode_wheel(struct hid_device *hid, u16 *real_product_id, const u16 bcd…  in lg4ff_handle_multimode_wheel()  argument
1223 	const u16 reported_product_id = hid->product;  in lg4ff_handle_multimode_wheel()
1226 	*real_product_id = lg4ff_identify_multimode_wheel(hid, reported_product_id, bcdDevice);  in lg4ff_handle_multimode_wheel()
1242 			hid_err(hid, "Invalid product id %X\n", *real_product_id);  in lg4ff_handle_multimode_wheel()
1246 		ret = lg4ff_switch_compatibility_mode(hid, s);  in lg4ff_handle_multimode_wheel()
1250 			hid_err(hid, "Unable to switch wheel mode, errno %d\n", ret);  in lg4ff_handle_multimode_wheel()
1260 int lg4ff_init(struct hid_device *hid)  in lg4ff_init()  argument
1262 	struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);  in lg4ff_init()
1264 	struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;  in lg4ff_init()
1266 	const struct usb_device_descriptor *udesc = &(hid_to_usb_dev(hid)->descriptor);  in lg4ff_init()
1276 	if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7))  in lg4ff_init()
1279 	drv_data = hid_get_drvdata(hid);  in lg4ff_init()
1281 		hid_err(hid, "Cannot add device, private driver data not allocated\n");  in lg4ff_init()
1293 	mmode_ret = lg4ff_handle_multimode_wheel(hid, &real_product_id, bcdDevice);  in lg4ff_init()
1301 		hid_err(hid, "Unable to switch device mode during initialization, errno %d\n", mmode_ret);  in lg4ff_init()
1308 		if (hid->product == lg4ff_devices[i].product_id) {  in lg4ff_init()
1315 …hid_err(hid, "This device is flagged to be handled by the lg4ff module but this module does not kn…  in lg4ff_init()
1329 			hid_err(hid, "Device product ID %X is not listed as a multimode wheel", real_product_id);  in lg4ff_init()
1365 	error = device_create_file(&hid->dev, &dev_attr_combine_pedals);  in lg4ff_init()
1367 		hid_warn(hid, "Unable to create sysfs interface for \"combine\", errno %d\n", error);  in lg4ff_init()
1368 	error = device_create_file(&hid->dev, &dev_attr_range);  in lg4ff_init()
1370 		hid_warn(hid, "Unable to create sysfs interface for \"range\", errno %d\n", error);  in lg4ff_init()
1372 		error = device_create_file(&hid->dev, &dev_attr_real_id);  in lg4ff_init()
1374 			hid_warn(hid, "Unable to create sysfs interface for \"real_id\", errno %d\n", error);  in lg4ff_init()
1375 		error = device_create_file(&hid->dev, &dev_attr_alternate_modes);  in lg4ff_init()
1377 			hid_warn(hid, "Unable to create sysfs interface for \"alternate_modes\", errno %d\n", error);  in lg4ff_init()
1384 		entry->wdata.set_range(hid, entry->wdata.range);  in lg4ff_init()
1398 		lg4ff_set_leds(hid, 0);  in lg4ff_init()
1400 		name_sz = strlen(dev_name(&hid->dev)) + 8;  in lg4ff_init()
1405 				hid_err(hid, "can't allocate memory for LED %d\n", j);  in lg4ff_init()
1410 			snprintf(name, name_sz, "%s::RPM%d", dev_name(&hid->dev), j+1);  in lg4ff_init()
1418 			error = led_classdev_register(&hid->dev, led);  in lg4ff_init()
1421 				hid_err(hid, "failed to register LED %d. Aborting.\n", j);  in lg4ff_init()
1438 	hid_info(hid, "Force feedback support for Logitech Gaming Wheels\n");  in lg4ff_init()
1447 int lg4ff_deinit(struct hid_device *hid)  in lg4ff_deinit()  argument
1452 	drv_data = hid_get_drvdata(hid);  in lg4ff_deinit()
1454 		hid_err(hid, "Error while deinitializing device, no private driver data.\n");  in lg4ff_deinit()
1463 		device_remove_file(&hid->dev, &dev_attr_real_id);  in lg4ff_deinit()
1464 		device_remove_file(&hid->dev, &dev_attr_alternate_modes);  in lg4ff_deinit()
1467 	device_remove_file(&hid->dev, &dev_attr_combine_pedals);  in lg4ff_deinit()
1468 	device_remove_file(&hid->dev, &dev_attr_range);  in lg4ff_deinit()
1486 	hid_hw_stop(hid);  in lg4ff_deinit()