3  *  Force feedback driver for USB HID PID compliant devices
19 #include <linux/hid.h>
145 	struct hid_device *hid;  member
250 	hid_dbg(pidff->hid, "attack %u => %d\n",  in pidff_set_envelope_report()
254 	hid_hw_request(pidff->hid, pidff->reports[PID_SET_ENVELOPE],  in pidff_set_envelope_report()
281 	hid_hw_request(pidff->hid, pidff->reports[PID_SET_CONSTANT],  in pidff_set_constant_force_report()
316 	hid_hw_request(pidff->hid, pidff->reports[PID_SET_EFFECT],  in pidff_set_effect_report()
348 	hid_hw_request(pidff->hid, pidff->reports[PID_SET_PERIODIC],  in pidff_set_periodic_report()
390 		hid_hw_request(pidff->hid, pidff->reports[PID_SET_CONDITION],  in pidff_set_condition_report()
431 	hid_hw_request(pidff->hid, pidff->reports[PID_SET_RAMP],  in pidff_set_ramp_force_report()
456 	hid_hw_request(pidff->hid, pidff->reports[PID_CREATE_NEW_EFFECT],  in pidff_request_effect_upload()
458 	hid_dbg(pidff->hid, "create_new_effect sent, type: %d\n", efnum);  in pidff_request_effect_upload()
462 	hid_hw_wait(pidff->hid);  in pidff_request_effect_upload()
465 		hid_dbg(pidff->hid, "pid_block_load requested\n");  in pidff_request_effect_upload()
466 		hid_hw_request(pidff->hid, pidff->reports[PID_BLOCK_LOAD],  in pidff_request_effect_upload()
468 		hid_hw_wait(pidff->hid);  in pidff_request_effect_upload()
471 			hid_dbg(pidff->hid, "device reported free memory: %d bytes\n",  in pidff_request_effect_upload()
478 			hid_dbg(pidff->hid, "not enough memory free: %d bytes\n",  in pidff_request_effect_upload()
484 	hid_err(pidff->hid, "pid_block_load failed 60 times\n");  in pidff_request_effect_upload()
504 	hid_hw_request(pidff->hid, pidff->reports[PID_EFFECT_OPERATION],  in pidff_playback_pid()
526 	hid_hw_request(pidff->hid, pidff->reports[PID_BLOCK_FREE],  in pidff_erase_pid()
538 	hid_dbg(pidff->hid, "starting to erase %d/%d\n",  in pidff_erase_effect()
542 	hid_hw_wait(pidff->hid);  in pidff_erase_effect()
603 				hid_err(pidff->hid, "invalid waveform\n");  in pidff_upload_effect()
694 		hid_err(pidff->hid, "invalid type\n");  in pidff_upload_effect()
702 	hid_dbg(pidff->hid, "uploaded\n");  in pidff_upload_effect()
715 	hid_hw_request(pidff->hid, pidff->reports[PID_DEVICE_GAIN],  in pidff_set_gain()
741 	hid_hw_request(pidff->hid, pidff->reports[PID_SET_EFFECT],  in pidff_autocenter()
772 				if (report->field[i]->usage[j].hid ==  in pidff_find_fields()
812 static void pidff_find_reports(struct hid_device *hid, int report_type,  in pidff_find_reports()  argument
819 			    &hid->report_enum[report_type].report_list, list) {  in pidff_find_reports()
824 			hid_dbg(hid, "found usage 0x%02x from field->logical\n",  in pidff_find_reports()
833 		 * case we want the usage of the parent. However, Linux HID  in pidff_find_reports()
839 		    hid->collection[i - 1].type != HID_COLLECTION_LOGICAL)  in pidff_find_reports()
841 		ret = pidff_check_usage(hid->collection[i - 1].usage);  in pidff_find_reports()
843 			hid_dbg(hid,  in pidff_find_reports()
860 			hid_dbg(pidff->hid, "%d missing\n", i);  in pidff_reports_ok()
903 			if (fld->usage[j].hid == (HID_UP_PID | usagetable[i])) {  in pidff_find_special_keys()
922 	hid_dbg(pidff->hid, "finding special fields\n");  in pidff_find_special_fields()
943 	hid_dbg(pidff->hid, "search done\n");  in pidff_find_special_fields()
946 		hid_err(pidff->hid, "effect lists not found\n");  in pidff_find_special_fields()
951 		hid_err(pidff->hid, "direction field not found\n");  in pidff_find_special_fields()
956 		hid_err(pidff->hid, "device control field not found\n");  in pidff_find_special_fields()
961 		hid_err(pidff->hid, "block load status field not found\n");  in pidff_find_special_fields()
966 		hid_err(pidff->hid, "effect operation field not found\n");  in pidff_find_special_fields()
978 		hid_err(pidff->hid, "no effect types found\n");  in pidff_find_special_fields()
985 		hid_err(pidff->hid,  in pidff_find_special_fields()
993 		hid_err(pidff->hid, "effect operation identifiers not found\n");  in pidff_find_special_fields()
1010 		if (pidff->set_effect_type->usage[pidff_type].hid !=  in pidff_find_effects()
1011 		    pidff->create_new_effect_type->usage[pidff_type].hid) {  in pidff_find_effects()
1012 			hid_err(pidff->hid,  in pidff_find_effects()
1068 		hid_err(pidff->hid, "unknown set_effect report layout\n");  in pidff_init_fields()
1074 		hid_err(pidff->hid, "unknown pid_block_load report layout\n");  in pidff_init_fields()
1079 		hid_err(pidff->hid, "unknown effect_operation report layout\n");  in pidff_init_fields()
1084 		hid_err(pidff->hid, "unknown pid_block_free report layout\n");  in pidff_init_fields()
1096 			hid_warn(pidff->hid,  in pidff_init_fields()
1099 			hid_warn(pidff->hid,  in pidff_init_fields()
1103 			hid_warn(pidff->hid,  in pidff_init_fields()
1109 		hid_warn(pidff->hid, "unknown constant effect layout\n");  in pidff_init_fields()
1115 		hid_warn(pidff->hid, "unknown ramp effect layout\n");  in pidff_init_fields()
1124 		hid_warn(pidff->hid, "unknown condition effect layout\n");  in pidff_init_fields()
1133 		hid_warn(pidff->hid, "unknown periodic effect layout\n");  in pidff_init_fields()
1150 	struct hid_device *hid = pidff->hid;  in pidff_reset()  local
1155 	hid_hw_request(hid, pidff->reports[PID_DEVICE_CONTROL], HID_REQ_SET_REPORT);  in pidff_reset()
1156 	hid_hw_wait(hid);  in pidff_reset()
1157 	hid_hw_request(hid, pidff->reports[PID_DEVICE_CONTROL], HID_REQ_SET_REPORT);  in pidff_reset()
1158 	hid_hw_wait(hid);  in pidff_reset()
1162 	hid_hw_request(hid, pidff->reports[PID_DEVICE_CONTROL], HID_REQ_SET_REPORT);  in pidff_reset()
1163 	hid_hw_wait(hid);  in pidff_reset()
1166 	hid_hw_request(hid, pidff->reports[PID_POOL], HID_REQ_GET_REPORT);  in pidff_reset()
1167 	hid_hw_wait(hid);  in pidff_reset()
1172 				hid_warn(pidff->hid,  in pidff_reset()
1177 			hid_dbg(pidff->hid, "pid_pool requested again\n");  in pidff_reset()
1178 			hid_hw_request(hid, pidff->reports[PID_POOL],  in pidff_reset()
1180 			hid_hw_wait(hid);  in pidff_reset()
1203 		hid_err(pidff->hid, "upload request failed\n");  in pidff_check_autocenter()
1212 		hid_notice(pidff->hid,  in pidff_check_autocenter()
1226 int hid_pidff_init(struct hid_device *hid)  in hid_pidff_init()  argument
1229 	struct hid_input *hidinput = list_entry(hid->inputs.next,  in hid_pidff_init()
1236 	hid_dbg(hid, "starting pid init\n");  in hid_pidff_init()
1238 	if (list_empty(&hid->report_enum[HID_OUTPUT_REPORT].report_list)) {  in hid_pidff_init()
1239 		hid_dbg(hid, "not a PID device, no output report\n");  in hid_pidff_init()
1247 	pidff->hid = hid;  in hid_pidff_init()
1249 	hid_device_io_start(hid);  in hid_pidff_init()
1251 	pidff_find_reports(hid, HID_OUTPUT_REPORT, pidff);  in hid_pidff_init()
1252 	pidff_find_reports(hid, HID_FEATURE_REPORT, pidff);  in hid_pidff_init()
1255 		hid_dbg(hid, "reports not ok, aborting\n");  in hid_pidff_init()
1268 		hid_hw_request(hid, pidff->reports[PID_DEVICE_GAIN],  in hid_pidff_init()
1280 	hid_dbg(hid, "max effects is %d\n", max_effects);  in hid_pidff_init()
1286 		hid_dbg(hid, "max simultaneous effects is %d\n",  in hid_pidff_init()
1290 		hid_dbg(hid, "device memory size is %d bytes\n",  in hid_pidff_init()
1296 		hid_notice(hid,  in hid_pidff_init()
1313 …hid_info(dev, "Force feedback for USB HID PID devices by Anssi Hannula <anssi.hannula@gmail.com>\n…  in hid_pidff_init()
1315 	hid_device_io_stop(hid);  in hid_pidff_init()
1320 	hid_device_io_stop(hid);  in hid_pidff_init()