75 static void lg4ff_set_range_dfp(struct hid_device *hid, u16 range);
76 static void lg4ff_set_range_g25(struct hid_device *hid, u16 range);
92 	void (*set_range)(struct hid_device *hid, u16 range);
112 	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()
363 	struct hid_device *hid = input_get_drvdata(dev);  in lg4ff_play()  local
370 	drv_data = hid_get_drvdata(hid);  in lg4ff_play()
372 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_play()
378 		hid_err(hid, "Device properties not found!\n");  in lg4ff_play()
401 			hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_play()
414 		hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_play()
425 	struct hid_device *hid = input_get_drvdata(dev);  in lg4ff_set_autocenter_default()  local
426 	struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;  in lg4ff_set_autocenter_default()
434 	drv_data = hid_get_drvdata(hid);  in lg4ff_set_autocenter_default()
436 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_set_autocenter_default()
442 		hid_err(hid, "Device properties not found!\n");  in lg4ff_set_autocenter_default()
458 		hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_autocenter_default()
489 	hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_autocenter_default()
500 	hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_autocenter_default()
507 	struct hid_device *hid = input_get_drvdata(dev);  in lg4ff_set_autocenter_ffex()  local
514 	drv_data = hid_get_drvdata(hid);  in lg4ff_set_autocenter_ffex()
516 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_set_autocenter_ffex()
522 		hid_err(hid, "Device properties not found!\n");  in lg4ff_set_autocenter_ffex()
536 	hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_autocenter_ffex()
541 static void lg4ff_set_range_g25(struct hid_device *hid, u16 range)  in lg4ff_set_range_g25()  argument
548 	drv_data = hid_get_drvdata(hid);  in lg4ff_set_range_g25()
550 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_set_range_g25()
556 		hid_err(hid, "Device properties not found!\n");  in lg4ff_set_range_g25()
571 	hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_range_g25()
576 static void lg4ff_set_range_dfp(struct hid_device *hid, u16 range)  in lg4ff_set_range_dfp()  argument
584 	drv_data = hid_get_drvdata(hid);  in lg4ff_set_range_dfp()
586 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_set_range_dfp()
592 		hid_err(hid, "Device properties not found!\n");  in lg4ff_set_range_dfp()
615 	hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_range_dfp()
627 		hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_range_dfp()
642 	hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_range_dfp()
720 static int lg4ff_switch_compatibility_mode(struct hid_device *hid, const struct lg4ff_compat_mode_s…  in lg4ff_switch_compatibility_mode()  argument
728 	drv_data = hid_get_drvdata(hid);  in lg4ff_switch_compatibility_mode()
730 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_switch_compatibility_mode()
736 		hid_err(hid, "Device properties not found!\n");  in lg4ff_switch_compatibility_mode()
748 		hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_switch_compatibility_mode()
751 	hid_hw_wait(hid);  in lg4ff_switch_compatibility_mode()
757 	struct hid_device *hid = to_hid_device(dev);  in lg4ff_alternate_modes_show()  local
763 	drv_data = hid_get_drvdata(hid);  in lg4ff_alternate_modes_show()
765 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_alternate_modes_show()
771 		hid_err(hid, "Device properties not found!\n");  in lg4ff_alternate_modes_show()
776 		hid_err(hid, "NULL pointer to string\n");  in lg4ff_alternate_modes_show()
806 	struct hid_device *hid = to_hid_device(dev);  in lg4ff_alternate_modes_store()  local
814 	drv_data = hid_get_drvdata(hid);  in lg4ff_alternate_modes_store()
816 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_alternate_modes_store()
822 		hid_err(hid, "Device properties not found!\n");  in lg4ff_alternate_modes_store()
856 		hid_info(hid, "Requested mode \"%s\" is not supported by the device\n", lbuf);  in lg4ff_alternate_modes_store()
867 …hid_info(hid, "\"%s\" cannot be switched to \"DF-EX\" mode. Load the \"hid_logitech\" module with …  in lg4ff_alternate_modes_store()
875 …hid_info(hid, "\"%s\" cannot be switched back into \"%s\" mode\n", entry->wdata.real_name, lg4ff_a…  in lg4ff_alternate_modes_store()
881 		hid_err(hid, "Invalid target product ID %X\n", target_product_id);  in lg4ff_alternate_modes_store()
885 	ret = lg4ff_switch_compatibility_mode(hid, s);  in lg4ff_alternate_modes_store()
894 	struct hid_device *hid = to_hid_device(dev);  in lg4ff_range_show()  local
899 	drv_data = hid_get_drvdata(hid);  in lg4ff_range_show()
901 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_range_show()
907 		hid_err(hid, "Device properties not found!\n");  in lg4ff_range_show()
920 	struct hid_device *hid = to_hid_device(dev);  in lg4ff_range_store()  local
925 	drv_data = hid_get_drvdata(hid);  in lg4ff_range_store()
927 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_range_store()
933 		hid_err(hid, "Device properties not found!\n");  in lg4ff_range_store()
943 		entry->wdata.set_range(hid, range);  in lg4ff_range_store()
953 	struct hid_device *hid = to_hid_device(dev);  in lg4ff_real_id_show()  local
958 	drv_data = hid_get_drvdata(hid);  in lg4ff_real_id_show()
960 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_real_id_show()
966 		hid_err(hid, "Device properties not found!\n");  in lg4ff_real_id_show()
971 		hid_err(hid, "NULL pointer to string\n");  in lg4ff_real_id_show()
987 static void lg4ff_set_leds(struct hid_device *hid, u8 leds)  in lg4ff_set_leds()  argument
994 	drv_data = hid_get_drvdata(hid);  in lg4ff_set_leds()
996 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_set_leds()
1002 		hid_err(hid, "Device properties not found!\n");  in lg4ff_set_leds()
1015 	hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_leds()
1023 	struct hid_device *hid = container_of(dev, struct hid_device, dev);  in lg4ff_led_set_brightness()  local
1024 	struct lg_drv_data *drv_data = hid_get_drvdata(hid);  in lg4ff_led_set_brightness()
1029 		hid_err(hid, "Device data not found.");  in lg4ff_led_set_brightness()
1036 		hid_err(hid, "Device properties not found.");  in lg4ff_led_set_brightness()
1046 			lg4ff_set_leds(hid, entry->wdata.led_state);  in lg4ff_led_set_brightness()
1049 			lg4ff_set_leds(hid, entry->wdata.led_state);  in lg4ff_led_set_brightness()
1058 	struct hid_device *hid = container_of(dev, struct hid_device, dev);  in lg4ff_led_get_brightness()  local
1059 	struct lg_drv_data *drv_data = hid_get_drvdata(hid);  in lg4ff_led_get_brightness()
1064 		hid_err(hid, "Device data not found.");  in lg4ff_led_get_brightness()
1071 		hid_err(hid, "Device properties not found.");  in lg4ff_led_get_brightness()
1085 static u16 lg4ff_identify_multimode_wheel(struct hid_device *hid, const u16 reported_product_id, co…  in lg4ff_identify_multimode_wheel()  argument
1120 static int lg4ff_handle_multimode_wheel(struct hid_device *hid, u16 *real_product_id, const u16 bcd…  in lg4ff_handle_multimode_wheel()  argument
1122 	const u16 reported_product_id = hid->product;  in lg4ff_handle_multimode_wheel()
1125 	*real_product_id = lg4ff_identify_multimode_wheel(hid, reported_product_id, bcdDevice);  in lg4ff_handle_multimode_wheel()
1141 			hid_err(hid, "Invalid product id %X\n", *real_product_id);  in lg4ff_handle_multimode_wheel()
1145 		ret = lg4ff_switch_compatibility_mode(hid, s);  in lg4ff_handle_multimode_wheel()
1149 			hid_err(hid, "Unable to switch wheel mode, errno %d\n", ret);  in lg4ff_handle_multimode_wheel()
1159 int lg4ff_init(struct hid_device *hid)  in lg4ff_init()  argument
1161 	struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);  in lg4ff_init()
1163 	struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;  in lg4ff_init()
1165 	const struct usb_device_descriptor *udesc = &(hid_to_usb_dev(hid)->descriptor);  in lg4ff_init()
1175 	if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7))  in lg4ff_init()
1178 	drv_data = hid_get_drvdata(hid);  in lg4ff_init()
1180 		hid_err(hid, "Cannot add device, private driver data not allocated\n");  in lg4ff_init()
1192 	mmode_ret = lg4ff_handle_multimode_wheel(hid, &real_product_id, bcdDevice);  in lg4ff_init()
1200 		hid_err(hid, "Unable to switch device mode during initialization, errno %d\n", mmode_ret);  in lg4ff_init()
1207 		if (hid->product == lg4ff_devices[i].product_id) {  in lg4ff_init()
1214 …hid_err(hid, "This device is flagged to be handled by the lg4ff module but this module does not kn…  in lg4ff_init()
1228 			hid_err(hid, "Device product ID %X is not listed as a multimode wheel", real_product_id);  in lg4ff_init()
1264 	error = device_create_file(&hid->dev, &dev_attr_range);  in lg4ff_init()
1266 		hid_warn(hid, "Unable to create sysfs interface for \"range\", errno %d\n", error);  in lg4ff_init()
1268 		error = device_create_file(&hid->dev, &dev_attr_real_id);  in lg4ff_init()
1270 			hid_warn(hid, "Unable to create sysfs interface for \"real_id\", errno %d\n", error);  in lg4ff_init()
1271 		error = device_create_file(&hid->dev, &dev_attr_alternate_modes);  in lg4ff_init()
1273 			hid_warn(hid, "Unable to create sysfs interface for \"alternate_modes\", errno %d\n", error);  in lg4ff_init()
1280 		entry->wdata.set_range(hid, entry->wdata.range);  in lg4ff_init()
1294 		lg4ff_set_leds(hid, 0);  in lg4ff_init()
1296 		name_sz = strlen(dev_name(&hid->dev)) + 8;  in lg4ff_init()
1301 				hid_err(hid, "can't allocate memory for LED %d\n", j);  in lg4ff_init()
1306 			snprintf(name, name_sz, "%s::RPM%d", dev_name(&hid->dev), j+1);  in lg4ff_init()
1314 			error = led_classdev_register(&hid->dev, led);  in lg4ff_init()
1317 				hid_err(hid, "failed to register LED %d. Aborting.\n", j);  in lg4ff_init()
1334 	hid_info(hid, "Force feedback support for Logitech Gaming Wheels\n");  in lg4ff_init()
1343 int lg4ff_deinit(struct hid_device *hid)  in lg4ff_deinit()  argument
1348 	drv_data = hid_get_drvdata(hid);  in lg4ff_deinit()
1350 		hid_err(hid, "Error while deinitializing device, no private driver data.\n");  in lg4ff_deinit()
1359 		device_remove_file(&hid->dev, &dev_attr_real_id);  in lg4ff_deinit()
1360 		device_remove_file(&hid->dev, &dev_attr_alternate_modes);  in lg4ff_deinit()
1363 	device_remove_file(&hid->dev, &dev_attr_range);  in lg4ff_deinit()
1381 	hid_hw_stop(hid);  in lg4ff_deinit()