net/nfc/digital_dep.c

239 	int rc;
246 			rc = -ENOMEM;
259 				rc = -ENOMEM;
273 			rc = send_ack(ddev, data_exch);
274 			if (rc)
292 	return ERR_PTR(rc);
300 	int rc;
303 		rc = PTR_ERR(resp);
308 	rc = ddev->skb_check_crc(resp);
309 	if (rc) {
314 	rc = digital_skb_pull_dep_sod(ddev, resp);
315 	if (rc) {
325 		rc = -EIO;
329 	rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH,
331 	if (rc)
334 	rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,
336 	if (rc)
355 	if (rc)
364 	int rc;
391 	rc = digital_in_send_cmd(ddev, skb, ddev->dep_rwt,
393 	if (rc)
396 	return rc;
406 	int rc;
409 		rc = PTR_ERR(resp);
414 	rc = ddev->skb_check_crc(resp);
415 	if (rc) {
420 	rc = digital_skb_pull_dep_sod(ddev, resp);
421 	if (rc) {
427 		rc = -EIO;
444 		rc = -EINVAL;
448 	rc = nfc_set_remote_general_bytes(ddev->nfc_dev, atr_res->gb, gb_len);
449 	if (rc)
454 		rc = digital_in_send_psl_req(ddev, target);
455 		if (!rc)
459 	rc = nfc_dep_link_is_up(ddev->nfc_dev, target->idx, NFC_COMM_ACTIVE,
467 	if (rc)
478 	int rc;
521 	rc = digital_in_send_cmd(ddev, skb, DIGITAL_ATR_RES_RWT,
523 	if (rc)
526 	return rc;
534 	int rc;
555 	rc = digital_in_send_cmd(ddev, skb, ddev->dep_rwt,
557 	if (rc) {
563 	return rc;
571 	int rc;
590 	rc = digital_in_send_cmd(ddev, skb, ddev->dep_rwt,
592 	if (rc)
595 	return rc;
603 	int rc;
621 	rc = digital_in_send_cmd(ddev, skb, ddev->dep_rwt,
623 	if (rc)
626 	return rc;
634 	int rc;
660 	rc = digital_in_send_cmd(ddev, skb, rwt_int,
662 	if (rc)
665 	return rc;
671 	int rc;
678 	rc = digital_in_send_cmd(ddev, ddev->saved_skb, ddev->dep_rwt,
680 	if (rc)
683 	return rc;
693 	int rc;
697 		rc = PTR_ERR(resp);
700 		if ((rc == -EIO || (rc == -ETIMEDOUT && ddev->nack_count)) &&
704 			rc = digital_in_send_nack(ddev, data_exch);
705 			if (rc)
709 		} else if ((rc == -ETIMEDOUT) &&
713 			rc = digital_in_send_atn(ddev, data_exch);
714 			if (rc)
723 	rc = digital_skb_pull_dep_sod(ddev, resp);
724 	if (rc) {
729 	rc = ddev->skb_check_crc(resp);
730 	if (rc) {
735 			rc = digital_in_send_nack(ddev, data_exch);
736 			if (rc)
752 		rc = -EMSGSIZE;
761 		rc = -EIO;
769 		rc = -EIO;
774 		rc = -EIO;
779 		rc = -EIO;
789 			rc = -EIO;
803 			rc = PTR_ERR(resp);
815 		rc = 0;
821 			rc = -EIO;
827 			rc = -EIO;
836 			rc = -EIO;
846 		rc = digital_in_send_dep_req(ddev, NULL,
849 		if (rc)
856 			rc = digital_in_send_saved_skb(ddev, data_exch);
857 			if (rc)
865 			rc = -EIO;
872 			rc = -EIO;
876 		rc = digital_in_send_rtox(ddev, data_exch, rtox);
877 		if (rc)
884 	data_exch->cb(data_exch->cb_context, resp, rc);
895 	if (rc)
910 	int rc;
935 	rc = digital_in_send_cmd(ddev, tmp_skb, ddev->dep_rwt,
937 	if (rc) {
948 	return rc;
983 	int rc;
1013 	rc = digital_tg_send_cmd(ddev, skb, 1500, digital_tg_recv_dep_req,
1015 	if (rc) {
1021 	return rc;
1028 	int rc;
1052 	rc = digital_tg_send_cmd(ddev, skb, 1500, digital_tg_recv_dep_req,
1054 	if (rc)
1057 	return rc;
1062 	int rc;
1069 	rc = digital_tg_send_cmd(ddev, ddev->saved_skb, 1500,
1071 	if (rc)
1074 	return rc;
1080 	int rc;
1086 		rc = PTR_ERR(resp);
1091 	rc = ddev->skb_check_crc(resp);
1092 	if (rc) {
1097 	rc = digital_skb_pull_dep_sod(ddev, resp);
1098 	if (rc) {
1104 		rc = -EMSGSIZE;
1113 		rc = -EIO;
1123 			rc = -EIO;
1127 		rc = -EIO;
1132 		rc = -EIO;
1137 		rc = -EIO;
1161 				rc = digital_tg_send_saved_skb(ddev);
1162 				if (rc)
1177 			rc = -EIO;
1187 			rc = PTR_ERR(resp);
1199 		rc = 0;
1205 				rc = -EIO;
1211 			rc = digital_tg_send_saved_skb(ddev);
1212 			if (rc)
1231 				rc = digital_tg_send_saved_skb(ddev);
1232 				if (rc)
1248 			rc = -EIO;
1255 		rc = digital_tg_send_dep_res(ddev, ddev->chaining_skb);
1256 		if (rc)
1262 			rc = -EINVAL;
1266 		rc = digital_tg_send_atn(ddev);
1267 		if (rc)
1275 	rc = nfc_tm_data_received(ddev->nfc_dev, resp);
1276 	if (rc)
1288 	if (rc)
1301 	int rc;
1332 	rc = digital_tg_send_cmd(ddev, tmp_skb, 1500, digital_tg_recv_dep_req,
1334 	if (rc) {
1345 	return rc;
1370 	int rc;
1390 	rc = digital_tg_send_cmd(ddev, skb, 0, digital_tg_send_psl_res_complete,
1392 	if (rc)
1395 	return rc;
1401 	int rc;
1407 		rc = PTR_ERR(resp);
1412 	rc = ddev->skb_check_crc(resp);
1413 	if (rc) {
1418 	rc = digital_skb_pull_dep_sod(ddev, resp);
1419 	if (rc) {
1429 		rc = -EIO;
1454 		rc = -EINVAL;
1461 	rc = digital_tg_send_psl_res(ddev, psl_req->did, rf_tech);
1496 	int rc;
1533 	rc = digital_tg_send_cmd(ddev, skb, 999,
1535 	if (rc)
1538 	return rc;
1544 	int rc;
1550 		rc = PTR_ERR(resp);
1556 		rc = -EIO;
1569 		rc = -EIO;
1575 	rc = ddev->skb_check_crc(resp);
1576 	if (rc) {
1581 	rc = digital_skb_pull_dep_sod(ddev, resp);
1582 	if (rc) {
1592 		rc = -EINVAL;
1600 		rc = -EINVAL;
1606 	rc = digital_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,
1608 	if (rc)
1611 	rc = digital_tg_send_atr_res(ddev, atr_req);
1612 	if (rc)
1620 	rc = nfc_tm_activated(ddev->nfc_dev, NFC_PROTO_NFC_DEP_MASK,
1622 	if (rc) {
1627 	rc = 0;
1629 	if (rc)