17 #include <linux/hid.h>
20 #include "hid-lg.h"
21 #include "hid-lg4ff.h"
22 #include "hid-ids.h"
61 static void lg4ff_set_range_dfp(struct hid_device *hid, u16 range);
62 static void lg4ff_set_range_g25(struct hid_device *hid, u16 range);
79 	void (*set_range)(struct hid_device *hid, u16 range);
83 	spinlock_t report_lock; /* Protect output HID report */
103 	void (*set_range)(struct hid_device *hid, u16 range);
300 int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field,  in lg4ff_adjust_input_event()  argument
307 		hid_err(hid, "Device properties not found");  in lg4ff_adjust_input_event()
335 	/* adjust HID report present combined pedals data */  in lg4ff_raw_event()
408 	struct hid_device *hid = input_get_drvdata(dev);  in lg4ff_play()  local
415 	drv_data = hid_get_drvdata(hid);  in lg4ff_play()
417 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_play()
423 		hid_err(hid, "Device properties not found!\n");  in lg4ff_play()
446 			hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_play()
459 		hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_play()
470 	struct hid_device *hid = input_get_drvdata(dev);  in lg4ff_set_autocenter_default()  local
477 	drv_data = hid_get_drvdata(hid);  in lg4ff_set_autocenter_default()
479 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_set_autocenter_default()
485 		hid_err(hid, "Device properties not found!\n");  in lg4ff_set_autocenter_default()
501 		hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_autocenter_default()
532 	hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_autocenter_default()
543 	hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_autocenter_default()
550 	struct hid_device *hid = input_get_drvdata(dev);  in lg4ff_set_autocenter_ffex()  local
557 	drv_data = hid_get_drvdata(hid);  in lg4ff_set_autocenter_ffex()
559 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_set_autocenter_ffex()
565 		hid_err(hid, "Device properties not found!\n");  in lg4ff_set_autocenter_ffex()
579 	hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_autocenter_ffex()
584 static void lg4ff_set_range_g25(struct hid_device *hid, u16 range)  in lg4ff_set_range_g25()  argument
591 	drv_data = hid_get_drvdata(hid);  in lg4ff_set_range_g25()
593 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_set_range_g25()
599 		hid_err(hid, "Device properties not found!\n");  in lg4ff_set_range_g25()
614 	hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_range_g25()
619 static void lg4ff_set_range_dfp(struct hid_device *hid, u16 range)  in lg4ff_set_range_dfp()  argument
627 	drv_data = hid_get_drvdata(hid);  in lg4ff_set_range_dfp()
629 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_set_range_dfp()
635 		hid_err(hid, "Device properties not found!\n");  in lg4ff_set_range_dfp()
658 	hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_range_dfp()
670 		hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_range_dfp()
685 	hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_set_range_dfp()
763 static int lg4ff_switch_compatibility_mode(struct hid_device *hid, const struct lg4ff_compat_mode_s…  in lg4ff_switch_compatibility_mode()  argument
771 	drv_data = hid_get_drvdata(hid);  in lg4ff_switch_compatibility_mode()
773 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_switch_compatibility_mode()
779 		hid_err(hid, "Device properties not found!\n");  in lg4ff_switch_compatibility_mode()
791 		hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);  in lg4ff_switch_compatibility_mode()
794 	hid_hw_wait(hid);  in lg4ff_switch_compatibility_mode()
800 	struct hid_device *hid = to_hid_device(dev);  in lg4ff_alternate_modes_show()  local
806 	drv_data = hid_get_drvdata(hid);  in lg4ff_alternate_modes_show()
808 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_alternate_modes_show()
814 		hid_err(hid, "Device properties not found!\n");  in lg4ff_alternate_modes_show()
819 		hid_err(hid, "NULL pointer to string\n");  in lg4ff_alternate_modes_show()
849 	struct hid_device *hid = to_hid_device(dev);  in lg4ff_alternate_modes_store()  local
857 	drv_data = hid_get_drvdata(hid);  in lg4ff_alternate_modes_store()
859 		hid_err(hid, "Private driver data not found!\n");  in lg4ff_alternate_modes_store()
865 		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
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()
1275 	if (list_empty(&hid->inputs)) {  in lg4ff_init()
1276 		hid_err(hid, "no inputs found\n");  in lg4ff_init()
1279 	hidinput = list_entry(hid->inputs.next, struct hid_input, list);  in lg4ff_init()
1283 	if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7))  in lg4ff_init()
1286 	drv_data = hid_get_drvdata(hid);  in lg4ff_init()
1288 		hid_err(hid, "Cannot add device, private driver data not allocated\n");  in lg4ff_init()
1300 	mmode_ret = lg4ff_handle_multimode_wheel(hid, &real_product_id, bcdDevice);  in lg4ff_init()
1308 		hid_err(hid, "Unable to switch device mode during initialization, errno %d\n", mmode_ret);  in lg4ff_init()
1315 		if (hid->product == lg4ff_devices[i].product_id) {  in lg4ff_init()
1322 …hid_err(hid, "This device is flagged to be handled by the lg4ff module but this module does not kn…  in lg4ff_init()
1336 			hid_err(hid, "Device product ID %X is not listed as a multimode wheel", real_product_id);  in lg4ff_init()
1372 	error = device_create_file(&hid->dev, &dev_attr_combine_pedals);  in lg4ff_init()
1374 		hid_warn(hid, "Unable to create sysfs interface for \"combine\", errno %d\n", error);  in lg4ff_init()
1375 	error = device_create_file(&hid->dev, &dev_attr_range);  in lg4ff_init()
1377 		hid_warn(hid, "Unable to create sysfs interface for \"range\", errno %d\n", error);  in lg4ff_init()
1379 		error = device_create_file(&hid->dev, &dev_attr_real_id);  in lg4ff_init()
1381 			hid_warn(hid, "Unable to create sysfs interface for \"real_id\", errno %d\n", error);  in lg4ff_init()
1382 		error = device_create_file(&hid->dev, &dev_attr_alternate_modes);  in lg4ff_init()
1384 			hid_warn(hid, "Unable to create sysfs interface for \"alternate_modes\", errno %d\n", error);  in lg4ff_init()
1391 		entry->wdata.set_range(hid, entry->wdata.range);  in lg4ff_init()
1405 		lg4ff_set_leds(hid, 0);  in lg4ff_init()
1407 		name_sz = strlen(dev_name(&hid->dev)) + 8;  in lg4ff_init()
1412 				hid_err(hid, "can't allocate memory for LED %d\n", j);  in lg4ff_init()
1417 			snprintf(name, name_sz, "%s::RPM%d", dev_name(&hid->dev), j+1);  in lg4ff_init()
1425 			error = led_classdev_register(&hid->dev, led);  in lg4ff_init()
1428 				hid_err(hid, "failed to register LED %d. Aborting.\n", j);  in lg4ff_init()
1445 	hid_info(hid, "Force feedback support for Logitech Gaming Wheels\n");  in lg4ff_init()
1454 int lg4ff_deinit(struct hid_device *hid)  in lg4ff_deinit()  argument
1459 	drv_data = hid_get_drvdata(hid);  in lg4ff_deinit()
1461 		hid_err(hid, "Error while deinitializing device, no private driver data.\n");  in lg4ff_deinit()
1470 		device_remove_file(&hid->dev, &dev_attr_real_id);  in lg4ff_deinit()
1471 		device_remove_file(&hid->dev, &dev_attr_alternate_modes);  in lg4ff_deinit()
1474 	device_remove_file(&hid->dev, &dev_attr_combine_pedals);  in lg4ff_deinit()
1475 	device_remove_file(&hid->dev, &dev_attr_range);  in lg4ff_deinit()