113 static void digital_in_recv_dep_res(struct nfc_digital_dev *ddev, void *arg,
115 static void digital_tg_recv_dep_req(struct nfc_digital_dev *ddev, void *arg,
144 static void digital_skb_push_dep_sod(struct nfc_digital_dev *ddev,  in digital_skb_push_dep_sod()  argument
151 	if (ddev->curr_rf_tech == NFC_DIGITAL_RF_TECH_106A)  in digital_skb_push_dep_sod()
155 static int digital_skb_pull_dep_sod(struct nfc_digital_dev *ddev,  in digital_skb_pull_dep_sod()  argument
163 	if (ddev->curr_rf_tech == NFC_DIGITAL_RF_TECH_106A)  in digital_skb_pull_dep_sod()
176 digital_send_dep_data_prep(struct nfc_digital_dev *ddev, struct sk_buff *skb,  in digital_send_dep_data_prep()  argument
182 	if (skb->len > ddev->remote_payload_max) {  in digital_send_dep_data_prep()
185 		new_skb = digital_skb_alloc(ddev, ddev->remote_payload_max);  in digital_send_dep_data_prep()
187 			kfree_skb(ddev->chaining_skb);  in digital_send_dep_data_prep()
188 			ddev->chaining_skb = NULL;  in digital_send_dep_data_prep()
193 		skb_reserve(new_skb, ddev->tx_headroom + NFC_HEADER_SIZE +  in digital_send_dep_data_prep()
195 		memcpy(skb_put(new_skb, ddev->remote_payload_max), skb->data,  in digital_send_dep_data_prep()
196 		       ddev->remote_payload_max);  in digital_send_dep_data_prep()
197 		skb_pull(skb, ddev->remote_payload_max);  in digital_send_dep_data_prep()
199 		ddev->chaining_skb = skb;  in digital_send_dep_data_prep()
200 		ddev->data_exch = data_exch;  in digital_send_dep_data_prep()
202 		ddev->chaining_skb = NULL;  in digital_send_dep_data_prep()
210 digital_recv_dep_data_gather(struct nfc_digital_dev *ddev, u8 pfb,  in digital_recv_dep_data_gather()  argument
212 			     int (*send_ack)(struct nfc_digital_dev *ddev,  in digital_recv_dep_data_gather()  argument
220 	if (DIGITAL_NFC_DEP_MI_BIT_SET(pfb) && (!ddev->chaining_skb)) {  in digital_recv_dep_data_gather()
221 		ddev->chaining_skb =  in digital_recv_dep_data_gather()
222 			nfc_alloc_recv_skb(8 * ddev->local_payload_max,  in digital_recv_dep_data_gather()
224 		if (!ddev->chaining_skb) {  in digital_recv_dep_data_gather()
230 	if (ddev->chaining_skb) {  in digital_recv_dep_data_gather()
231 		if (resp->len > skb_tailroom(ddev->chaining_skb)) {  in digital_recv_dep_data_gather()
232 			new_skb = skb_copy_expand(ddev->chaining_skb,  in digital_recv_dep_data_gather()
234 							  ddev->chaining_skb),  in digital_recv_dep_data_gather()
235 						  8 * ddev->local_payload_max,  in digital_recv_dep_data_gather()
242 			kfree_skb(ddev->chaining_skb);  in digital_recv_dep_data_gather()
243 			ddev->chaining_skb = new_skb;  in digital_recv_dep_data_gather()
246 		memcpy(skb_put(ddev->chaining_skb, resp->len), resp->data,  in digital_recv_dep_data_gather()
253 			rc = send_ack(ddev, data_exch);  in digital_recv_dep_data_gather()
260 		resp = ddev->chaining_skb;  in digital_recv_dep_data_gather()
261 		ddev->chaining_skb = NULL;  in digital_recv_dep_data_gather()
269 	kfree_skb(ddev->chaining_skb);  in digital_recv_dep_data_gather()
270 	ddev->chaining_skb = NULL;  in digital_recv_dep_data_gather()
275 static void digital_in_recv_psl_res(struct nfc_digital_dev *ddev, void *arg,  in digital_in_recv_psl_res()  argument
288 	rc = ddev->skb_check_crc(resp);  in digital_in_recv_psl_res()
294 	rc = digital_skb_pull_dep_sod(ddev, resp);  in digital_in_recv_psl_res()
309 	rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH,  in digital_in_recv_psl_res()
314 	rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,  in digital_in_recv_psl_res()
319 	if (!DIGITAL_DRV_CAPS_IN_CRC(ddev) &&  in digital_in_recv_psl_res()
320 	    (ddev->curr_rf_tech == NFC_DIGITAL_RF_TECH_106A)) {  in digital_in_recv_psl_res()
321 		ddev->skb_add_crc = digital_skb_add_crc_f;  in digital_in_recv_psl_res()
322 		ddev->skb_check_crc = digital_skb_check_crc_f;  in digital_in_recv_psl_res()
325 	ddev->curr_rf_tech = NFC_DIGITAL_RF_TECH_424F;  in digital_in_recv_psl_res()
327 	nfc_dep_link_is_up(ddev->nfc_dev, target->idx, NFC_COMM_ACTIVE,  in digital_in_recv_psl_res()
330 	ddev->curr_nfc_dep_pni = 0;  in digital_in_recv_psl_res()
336 		ddev->curr_protocol = 0;  in digital_in_recv_psl_res()
339 static int digital_in_send_psl_req(struct nfc_digital_dev *ddev,  in digital_in_send_psl_req()  argument
347 	skb = digital_skb_alloc(ddev, sizeof(*psl_req));  in digital_in_send_psl_req()
360 	payload_size = min(ddev->local_payload_max, ddev->remote_payload_max);  in digital_in_send_psl_req()
364 	ddev->local_payload_max = payload_size;  in digital_in_send_psl_req()
365 	ddev->remote_payload_max = payload_size;  in digital_in_send_psl_req()
367 	digital_skb_push_dep_sod(ddev, skb);  in digital_in_send_psl_req()
369 	ddev->skb_add_crc(skb);  in digital_in_send_psl_req()
371 	rc = digital_in_send_cmd(ddev, skb, 500, digital_in_recv_psl_res,  in digital_in_send_psl_req()
379 static void digital_in_recv_atr_res(struct nfc_digital_dev *ddev, void *arg,  in digital_in_recv_atr_res()  argument
393 	rc = ddev->skb_check_crc(resp);  in digital_in_recv_atr_res()
399 	rc = digital_skb_pull_dep_sod(ddev, resp);  in digital_in_recv_atr_res()
415 	ddev->remote_payload_max = digital_payload_bits_to_size(payload_bits);  in digital_in_recv_atr_res()
417 	if (!ddev->remote_payload_max) {  in digital_in_recv_atr_res()
422 	rc = nfc_set_remote_general_bytes(ddev->nfc_dev, atr_res->gb, gb_len);  in digital_in_recv_atr_res()
426 	if ((ddev->protocols & NFC_PROTO_FELICA_MASK) &&  in digital_in_recv_atr_res()
427 	    (ddev->curr_rf_tech != NFC_DIGITAL_RF_TECH_424F)) {  in digital_in_recv_atr_res()
428 		rc = digital_in_send_psl_req(ddev, target);  in digital_in_recv_atr_res()
433 	rc = nfc_dep_link_is_up(ddev->nfc_dev, target->idx, NFC_COMM_ACTIVE,  in digital_in_recv_atr_res()
436 	ddev->curr_nfc_dep_pni = 0;  in digital_in_recv_atr_res()
442 		ddev->curr_protocol = 0;  in digital_in_recv_atr_res()
445 int digital_in_send_atr_req(struct nfc_digital_dev *ddev,  in digital_in_send_atr_req()  argument
462 	skb = digital_skb_alloc(ddev, size);  in digital_in_send_atr_req()
482 	ddev->local_payload_max = DIGITAL_PAYLOAD_SIZE_MAX;  in digital_in_send_atr_req()
483 	payload_bits = digital_payload_size_to_bits(ddev->local_payload_max);  in digital_in_send_atr_req()
491 	digital_skb_push_dep_sod(ddev, skb);  in digital_in_send_atr_req()
493 	ddev->skb_add_crc(skb);  in digital_in_send_atr_req()
495 	rc = digital_in_send_cmd(ddev, skb, 500, digital_in_recv_atr_res,  in digital_in_send_atr_req()
503 static int digital_in_send_ack(struct nfc_digital_dev *ddev,  in digital_in_send_ack()  argument
510 	skb = digital_skb_alloc(ddev, 1);  in digital_in_send_ack()
521 		       ddev->curr_nfc_dep_pni;  in digital_in_send_ack()
523 	digital_skb_push_dep_sod(ddev, skb);  in digital_in_send_ack()
525 	ddev->skb_add_crc(skb);  in digital_in_send_ack()
527 	ddev->saved_skb = skb_get(skb);  in digital_in_send_ack()
528 	ddev->saved_skb_len = skb->len;  in digital_in_send_ack()
530 	rc = digital_in_send_cmd(ddev, skb, 1500, digital_in_recv_dep_res,  in digital_in_send_ack()
534 		kfree_skb(ddev->saved_skb);  in digital_in_send_ack()
535 		ddev->saved_skb = NULL;  in digital_in_send_ack()
541 static int digital_in_send_nack(struct nfc_digital_dev *ddev,  in digital_in_send_nack()  argument
548 	skb = digital_skb_alloc(ddev, 1);  in digital_in_send_nack()
559 		       DIGITAL_NFC_DEP_PFB_NACK_BIT | ddev->curr_nfc_dep_pni;  in digital_in_send_nack()
561 	digital_skb_push_dep_sod(ddev, skb);  in digital_in_send_nack()
563 	ddev->skb_add_crc(skb);  in digital_in_send_nack()
565 	rc = digital_in_send_cmd(ddev, skb, 1500, digital_in_recv_dep_res,  in digital_in_send_nack()
573 static int digital_in_send_atn(struct nfc_digital_dev *ddev,  in digital_in_send_atn()  argument
580 	skb = digital_skb_alloc(ddev, 1);  in digital_in_send_atn()
592 	digital_skb_push_dep_sod(ddev, skb);  in digital_in_send_atn()
594 	ddev->skb_add_crc(skb);  in digital_in_send_atn()
596 	rc = digital_in_send_cmd(ddev, skb, 1500, digital_in_recv_dep_res,  in digital_in_send_atn()
604 static int digital_in_send_rtox(struct nfc_digital_dev *ddev,  in digital_in_send_rtox()  argument
611 	skb = digital_skb_alloc(ddev, 1);  in digital_in_send_rtox()
626 	digital_skb_push_dep_sod(ddev, skb);  in digital_in_send_rtox()
628 	ddev->skb_add_crc(skb);  in digital_in_send_rtox()
630 	ddev->saved_skb = skb_get(skb);  in digital_in_send_rtox()
631 	ddev->saved_skb_len = skb->len;  in digital_in_send_rtox()
633 	rc = digital_in_send_cmd(ddev, skb, 1500, digital_in_recv_dep_res,  in digital_in_send_rtox()
637 		kfree_skb(ddev->saved_skb);  in digital_in_send_rtox()
638 		ddev->saved_skb = NULL;  in digital_in_send_rtox()
644 static int digital_in_send_saved_skb(struct nfc_digital_dev *ddev,  in digital_in_send_saved_skb()  argument
647 	skb_get(ddev->saved_skb);  in digital_in_send_saved_skb()
648 	skb_push(ddev->saved_skb, ddev->saved_skb_len);  in digital_in_send_saved_skb()
650 	return digital_in_send_cmd(ddev, ddev->saved_skb, 1500,  in digital_in_send_saved_skb()
654 static void digital_in_recv_dep_res(struct nfc_digital_dev *ddev, void *arg,  in digital_in_recv_dep_res()  argument
667 		if (((rc != -ETIMEDOUT) || ddev->nack_count) &&  in digital_in_recv_dep_res()
668 		    (ddev->nack_count++ < DIGITAL_NFC_DEP_N_RETRY_NACK)) {  in digital_in_recv_dep_res()
669 			ddev->atn_count = 0;  in digital_in_recv_dep_res()
671 			rc = digital_in_send_nack(ddev, data_exch);  in digital_in_recv_dep_res()
677 			   (ddev->atn_count++ < DIGITAL_NFC_DEP_N_RETRY_ATN)) {  in digital_in_recv_dep_res()
678 			ddev->nack_count = 0;  in digital_in_recv_dep_res()
680 			rc = digital_in_send_atn(ddev, data_exch);  in digital_in_recv_dep_res()
690 	rc = digital_skb_pull_dep_sod(ddev, resp);  in digital_in_recv_dep_res()
696 	rc = ddev->skb_check_crc(resp);  in digital_in_recv_dep_res()
699 		    (ddev->nack_count++ < DIGITAL_NFC_DEP_N_RETRY_NACK)) {  in digital_in_recv_dep_res()
700 			ddev->atn_count = 0;  in digital_in_recv_dep_res()
702 			rc = digital_in_send_nack(ddev, data_exch);  in digital_in_recv_dep_res()
715 	ddev->atn_count = 0;  in digital_in_recv_dep_res()
716 	ddev->nack_count = 0;  in digital_in_recv_dep_res()
718 	if (resp->len > ddev->local_payload_max) {  in digital_in_recv_dep_res()
754 		if (DIGITAL_NFC_DEP_PFB_PNI(pfb) != ddev->curr_nfc_dep_pni) {  in digital_in_recv_dep_res()
760 		ddev->curr_nfc_dep_pni =  in digital_in_recv_dep_res()
761 			DIGITAL_NFC_DEP_PFB_PNI(ddev->curr_nfc_dep_pni + 1);  in digital_in_recv_dep_res()
763 		kfree_skb(ddev->saved_skb);  in digital_in_recv_dep_res()
764 		ddev->saved_skb = NULL;  in digital_in_recv_dep_res()
766 		resp = digital_recv_dep_data_gather(ddev, pfb, resp,  in digital_in_recv_dep_res()
786 		if (DIGITAL_NFC_DEP_PFB_PNI(pfb) != ddev->curr_nfc_dep_pni) {  in digital_in_recv_dep_res()
792 		ddev->curr_nfc_dep_pni =  in digital_in_recv_dep_res()
793 			DIGITAL_NFC_DEP_PFB_PNI(ddev->curr_nfc_dep_pni + 1);  in digital_in_recv_dep_res()
795 		if (ddev->chaining_skb && !DIGITAL_NFC_DEP_NACK_BIT_SET(pfb)) {  in digital_in_recv_dep_res()
796 			kfree_skb(ddev->saved_skb);  in digital_in_recv_dep_res()
797 			ddev->saved_skb = NULL;  in digital_in_recv_dep_res()
799 			rc = digital_in_send_dep_req(ddev, NULL,  in digital_in_recv_dep_res()
800 						     ddev->chaining_skb,  in digital_in_recv_dep_res()
801 						     ddev->data_exch);  in digital_in_recv_dep_res()
814 			rc = digital_in_send_saved_skb(ddev, data_exch);  in digital_in_recv_dep_res()
816 				kfree_skb(ddev->saved_skb);  in digital_in_recv_dep_res()
823 		kfree_skb(ddev->saved_skb);  in digital_in_recv_dep_res()
824 		ddev->saved_skb = NULL;  in digital_in_recv_dep_res()
826 		rc = digital_in_send_rtox(ddev, data_exch, resp->data[0]);  in digital_in_recv_dep_res()
840 	kfree_skb(ddev->chaining_skb);  in digital_in_recv_dep_res()
841 	ddev->chaining_skb = NULL;  in digital_in_recv_dep_res()
843 	kfree_skb(ddev->saved_skb);  in digital_in_recv_dep_res()
844 	ddev->saved_skb = NULL;  in digital_in_recv_dep_res()
850 int digital_in_send_dep_req(struct nfc_digital_dev *ddev,  in digital_in_send_dep_req()  argument
864 	dep_req->pfb = ddev->curr_nfc_dep_pni;  in digital_in_send_dep_req()
866 	ddev->atn_count = 0;  in digital_in_send_dep_req()
867 	ddev->nack_count = 0;  in digital_in_send_dep_req()
869 	chaining_skb = ddev->chaining_skb;  in digital_in_send_dep_req()
871 	tmp_skb = digital_send_dep_data_prep(ddev, skb, dep_req, data_exch);  in digital_in_send_dep_req()
875 	digital_skb_push_dep_sod(ddev, tmp_skb);  in digital_in_send_dep_req()
877 	ddev->skb_add_crc(tmp_skb);  in digital_in_send_dep_req()
879 	ddev->saved_skb = skb_get(tmp_skb);  in digital_in_send_dep_req()
880 	ddev->saved_skb_len = tmp_skb->len;  in digital_in_send_dep_req()
882 	rc = digital_in_send_cmd(ddev, tmp_skb, 1500, digital_in_recv_dep_res,  in digital_in_send_dep_req()
889 		ddev->chaining_skb = NULL;  in digital_in_send_dep_req()
891 		kfree_skb(ddev->saved_skb);  in digital_in_send_dep_req()
892 		ddev->saved_skb = NULL;  in digital_in_send_dep_req()
898 static void digital_tg_set_rf_tech(struct nfc_digital_dev *ddev, u8 rf_tech)  in digital_tg_set_rf_tech()  argument
900 	ddev->curr_rf_tech = rf_tech;  in digital_tg_set_rf_tech()
902 	ddev->skb_add_crc = digital_skb_add_crc_none;  in digital_tg_set_rf_tech()
903 	ddev->skb_check_crc = digital_skb_check_crc_none;  in digital_tg_set_rf_tech()
905 	if (DIGITAL_DRV_CAPS_TG_CRC(ddev))  in digital_tg_set_rf_tech()
908 	switch (ddev->curr_rf_tech) {  in digital_tg_set_rf_tech()
910 		ddev->skb_add_crc = digital_skb_add_crc_a;  in digital_tg_set_rf_tech()
911 		ddev->skb_check_crc = digital_skb_check_crc_a;  in digital_tg_set_rf_tech()
916 		ddev->skb_add_crc = digital_skb_add_crc_f;  in digital_tg_set_rf_tech()
917 		ddev->skb_check_crc = digital_skb_check_crc_f;  in digital_tg_set_rf_tech()
925 static int digital_tg_send_ack(struct nfc_digital_dev *ddev,  in digital_tg_send_ack()  argument
932 	skb = digital_skb_alloc(ddev, 1);  in digital_tg_send_ack()
943 		       ddev->curr_nfc_dep_pni;  in digital_tg_send_ack()
945 	if (ddev->did) {  in digital_tg_send_ack()
948 		memcpy(skb_put(skb, sizeof(ddev->did)), &ddev->did,  in digital_tg_send_ack()
949 		       sizeof(ddev->did));  in digital_tg_send_ack()
952 	ddev->curr_nfc_dep_pni =  in digital_tg_send_ack()
953 		DIGITAL_NFC_DEP_PFB_PNI(ddev->curr_nfc_dep_pni + 1);  in digital_tg_send_ack()
955 	digital_skb_push_dep_sod(ddev, skb);  in digital_tg_send_ack()
957 	ddev->skb_add_crc(skb);  in digital_tg_send_ack()
959 	ddev->saved_skb = skb_get(skb);  in digital_tg_send_ack()
960 	ddev->saved_skb_len = skb->len;  in digital_tg_send_ack()
962 	rc = digital_tg_send_cmd(ddev, skb, 1500, digital_tg_recv_dep_req,  in digital_tg_send_ack()
966 		kfree_skb(ddev->saved_skb);  in digital_tg_send_ack()
967 		ddev->saved_skb = NULL;  in digital_tg_send_ack()
973 static int digital_tg_send_atn(struct nfc_digital_dev *ddev)  in digital_tg_send_atn()  argument
979 	skb = digital_skb_alloc(ddev, 1);  in digital_tg_send_atn()
991 	if (ddev->did) {  in digital_tg_send_atn()
994 		memcpy(skb_put(skb, sizeof(ddev->did)), &ddev->did,  in digital_tg_send_atn()
995 		       sizeof(ddev->did));  in digital_tg_send_atn()
998 	digital_skb_push_dep_sod(ddev, skb);  in digital_tg_send_atn()
1000 	ddev->skb_add_crc(skb);  in digital_tg_send_atn()
1002 	rc = digital_tg_send_cmd(ddev, skb, 1500, digital_tg_recv_dep_req,  in digital_tg_send_atn()
1010 static int digital_tg_send_saved_skb(struct nfc_digital_dev *ddev)  in digital_tg_send_saved_skb()  argument
1012 	skb_get(ddev->saved_skb);  in digital_tg_send_saved_skb()
1013 	skb_push(ddev->saved_skb, ddev->saved_skb_len);  in digital_tg_send_saved_skb()
1015 	return digital_tg_send_cmd(ddev, ddev->saved_skb, 1500,  in digital_tg_send_saved_skb()
1019 static void digital_tg_recv_dep_req(struct nfc_digital_dev *ddev, void *arg,  in digital_tg_recv_dep_req()  argument
1033 	rc = ddev->skb_check_crc(resp);  in digital_tg_recv_dep_req()
1039 	rc = digital_skb_pull_dep_sod(ddev, resp);  in digital_tg_recv_dep_req()
1045 	if (resp->len > ddev->local_payload_max) {  in digital_tg_recv_dep_req()
1062 		if (ddev->did && (ddev->did == resp->data[3])) {  in digital_tg_recv_dep_req()
1068 	} else if (ddev->did) {  in digital_tg_recv_dep_req()
1089 		if ((ddev->atn_count && (DIGITAL_NFC_DEP_PFB_PNI(pfb - 1) !=  in digital_tg_recv_dep_req()
1090 						ddev->curr_nfc_dep_pni)) ||  in digital_tg_recv_dep_req()
1091 		    (DIGITAL_NFC_DEP_PFB_PNI(pfb) != ddev->curr_nfc_dep_pni)) {  in digital_tg_recv_dep_req()
1097 		if (ddev->atn_count) {  in digital_tg_recv_dep_req()
1098 			ddev->atn_count = 0;  in digital_tg_recv_dep_req()
1100 			rc = digital_tg_send_saved_skb(ddev);  in digital_tg_recv_dep_req()
1107 		kfree_skb(ddev->saved_skb);  in digital_tg_recv_dep_req()
1108 		ddev->saved_skb = NULL;  in digital_tg_recv_dep_req()
1110 		resp = digital_recv_dep_data_gather(ddev, pfb, resp,  in digital_tg_recv_dep_req()
1129 			if ((ddev->atn_count &&  in digital_tg_recv_dep_req()
1131 						ddev->curr_nfc_dep_pni)) ||  in digital_tg_recv_dep_req()
1133 						ddev->curr_nfc_dep_pni) ||  in digital_tg_recv_dep_req()
1134 			    !ddev->chaining_skb || !ddev->saved_skb) {  in digital_tg_recv_dep_req()
1139 			if (ddev->atn_count) {  in digital_tg_recv_dep_req()
1140 				ddev->atn_count = 0;  in digital_tg_recv_dep_req()
1142 				rc = digital_tg_send_saved_skb(ddev);  in digital_tg_recv_dep_req()
1149 			kfree_skb(ddev->saved_skb);  in digital_tg_recv_dep_req()
1150 			ddev->saved_skb = NULL;  in digital_tg_recv_dep_req()
1152 			rc = digital_tg_send_dep_res(ddev, ddev->chaining_skb);  in digital_tg_recv_dep_req()
1157 						ddev->curr_nfc_dep_pni) ||  in digital_tg_recv_dep_req()
1158 			    !ddev->saved_skb) {  in digital_tg_recv_dep_req()
1163 			ddev->atn_count = 0;  in digital_tg_recv_dep_req()
1165 			rc = digital_tg_send_saved_skb(ddev);  in digital_tg_recv_dep_req()
1167 				kfree_skb(ddev->saved_skb);  in digital_tg_recv_dep_req()
1179 		rc = digital_tg_send_atn(ddev);  in digital_tg_recv_dep_req()
1183 		ddev->atn_count++;  in digital_tg_recv_dep_req()
1189 	rc = nfc_tm_data_received(ddev->nfc_dev, resp);  in digital_tg_recv_dep_req()
1192 	kfree_skb(ddev->chaining_skb);  in digital_tg_recv_dep_req()
1193 	ddev->chaining_skb = NULL;  in digital_tg_recv_dep_req()
1195 	ddev->atn_count = 0;  in digital_tg_recv_dep_req()
1197 	kfree_skb(ddev->saved_skb);  in digital_tg_recv_dep_req()
1198 	ddev->saved_skb = NULL;  in digital_tg_recv_dep_req()
1204 int digital_tg_send_dep_res(struct nfc_digital_dev *ddev, struct sk_buff *skb)  in digital_tg_send_dep_res()  argument
1216 	dep_res->pfb = ddev->curr_nfc_dep_pni;  in digital_tg_send_dep_res()
1218 	if (ddev->did) {  in digital_tg_send_dep_res()
1221 		memcpy(skb_put(skb, sizeof(ddev->did)), &ddev->did,  in digital_tg_send_dep_res()
1222 		       sizeof(ddev->did));  in digital_tg_send_dep_res()
1225 	ddev->curr_nfc_dep_pni =  in digital_tg_send_dep_res()
1226 		DIGITAL_NFC_DEP_PFB_PNI(ddev->curr_nfc_dep_pni + 1);  in digital_tg_send_dep_res()
1228 	chaining_skb = ddev->chaining_skb;  in digital_tg_send_dep_res()
1230 	tmp_skb = digital_send_dep_data_prep(ddev, skb, dep_res, NULL);  in digital_tg_send_dep_res()
1234 	digital_skb_push_dep_sod(ddev, tmp_skb);  in digital_tg_send_dep_res()
1236 	ddev->skb_add_crc(tmp_skb);  in digital_tg_send_dep_res()
1238 	ddev->saved_skb = skb_get(tmp_skb);  in digital_tg_send_dep_res()
1239 	ddev->saved_skb_len = tmp_skb->len;  in digital_tg_send_dep_res()
1241 	rc = digital_tg_send_cmd(ddev, tmp_skb, 1500, digital_tg_recv_dep_req,  in digital_tg_send_dep_res()
1248 		ddev->chaining_skb = NULL;  in digital_tg_send_dep_res()
1250 		kfree_skb(ddev->saved_skb);  in digital_tg_send_dep_res()
1251 		ddev->saved_skb = NULL;  in digital_tg_send_dep_res()
1257 static void digital_tg_send_psl_res_complete(struct nfc_digital_dev *ddev,  in digital_tg_send_psl_res_complete()  argument
1265 	digital_tg_set_rf_tech(ddev, rf_tech);  in digital_tg_send_psl_res_complete()
1267 	digital_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH, rf_tech);  in digital_tg_send_psl_res_complete()
1269 	digital_tg_listen(ddev, 1500, digital_tg_recv_dep_req, NULL);  in digital_tg_send_psl_res_complete()
1274 static int digital_tg_send_psl_res(struct nfc_digital_dev *ddev, u8 did,  in digital_tg_send_psl_res()  argument
1281 	skb = digital_skb_alloc(ddev, sizeof(struct digital_psl_res));  in digital_tg_send_psl_res()
1293 	digital_skb_push_dep_sod(ddev, skb);  in digital_tg_send_psl_res()
1295 	ddev->skb_add_crc(skb);  in digital_tg_send_psl_res()
1297 	ddev->curr_nfc_dep_pni = 0;  in digital_tg_send_psl_res()
1299 	rc = digital_tg_send_cmd(ddev, skb, 0, digital_tg_send_psl_res_complete,  in digital_tg_send_psl_res()
1307 static void digital_tg_recv_psl_req(struct nfc_digital_dev *ddev, void *arg,  in digital_tg_recv_psl_req()  argument
1321 	rc = ddev->skb_check_crc(resp);  in digital_tg_recv_psl_req()
1327 	rc = digital_skb_pull_dep_sod(ddev, resp);  in digital_tg_recv_psl_req()
1361 	if (!payload_size || (payload_size > min(ddev->local_payload_max,  in digital_tg_recv_psl_req()
1362 						 ddev->remote_payload_max))) {  in digital_tg_recv_psl_req()
1367 	ddev->local_payload_max = payload_size;  in digital_tg_recv_psl_req()
1368 	ddev->remote_payload_max = payload_size;  in digital_tg_recv_psl_req()
1370 	rc = digital_tg_send_psl_res(ddev, psl_req->did, rf_tech);  in digital_tg_recv_psl_req()
1376 static void digital_tg_send_atr_res_complete(struct nfc_digital_dev *ddev,  in digital_tg_send_atr_res_complete()  argument
1382 		digital_poll_next_tech(ddev);  in digital_tg_send_atr_res_complete()
1390 	ddev->atn_count = 0;  in digital_tg_send_atr_res_complete()
1393 		digital_tg_recv_psl_req(ddev, arg, resp);  in digital_tg_send_atr_res_complete()
1395 		digital_tg_recv_dep_req(ddev, arg, resp);  in digital_tg_send_atr_res_complete()
1398 static int digital_tg_send_atr_res(struct nfc_digital_dev *ddev,  in digital_tg_send_atr_res()  argument
1407 	gb = nfc_get_local_general_bytes(ddev->nfc_dev, &gb_len);  in digital_tg_send_atr_res()
1411 	skb = digital_skb_alloc(ddev, sizeof(struct digital_atr_res) + gb_len);  in digital_tg_send_atr_res()
1425 	ddev->local_payload_max = DIGITAL_PAYLOAD_SIZE_MAX;  in digital_tg_send_atr_res()
1426 	payload_bits = digital_payload_size_to_bits(ddev->local_payload_max);  in digital_tg_send_atr_res()
1436 	digital_skb_push_dep_sod(ddev, skb);  in digital_tg_send_atr_res()
1438 	ddev->skb_add_crc(skb);  in digital_tg_send_atr_res()
1440 	ddev->curr_nfc_dep_pni = 0;  in digital_tg_send_atr_res()
1442 	rc = digital_tg_send_cmd(ddev, skb, 999,  in digital_tg_send_atr_res()
1450 void digital_tg_recv_atr_req(struct nfc_digital_dev *ddev, void *arg,  in digital_tg_recv_atr_req()  argument
1471 		digital_tg_set_rf_tech(ddev, NFC_DIGITAL_RF_TECH_106A);  in digital_tg_recv_atr_req()
1474 		digital_tg_set_rf_tech(ddev, NFC_DIGITAL_RF_TECH_212F);  in digital_tg_recv_atr_req()
1482 	ddev->curr_protocol = NFC_PROTO_NFC_DEP_MASK;  in digital_tg_recv_atr_req()
1484 	rc = ddev->skb_check_crc(resp);  in digital_tg_recv_atr_req()
1490 	rc = digital_skb_pull_dep_sod(ddev, resp);  in digital_tg_recv_atr_req()
1506 	ddev->remote_payload_max = digital_payload_bits_to_size(payload_bits);  in digital_tg_recv_atr_req()
1508 	if (!ddev->remote_payload_max) {  in digital_tg_recv_atr_req()
1513 	ddev->did = atr_req->did;  in digital_tg_recv_atr_req()
1515 	rc = digital_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,  in digital_tg_recv_atr_req()
1520 	rc = digital_tg_send_atr_res(ddev, atr_req);  in digital_tg_recv_atr_req()
1526 	poll_tech_count = ddev->poll_tech_count;  in digital_tg_recv_atr_req()
1527 	ddev->poll_tech_count = 0;  in digital_tg_recv_atr_req()
1529 	rc = nfc_tm_activated(ddev->nfc_dev, NFC_PROTO_NFC_DEP_MASK,  in digital_tg_recv_atr_req()
1532 		ddev->poll_tech_count = poll_tech_count;  in digital_tg_recv_atr_req()
1539 		digital_poll_next_tech(ddev);  in digital_tg_recv_atr_req()