5 files changed, 138 insertions, 128 deletions

diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 3925c657..fe5ca89 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -126,7 +126,10 @@ static inline int nci_request(struct nci_dev *ndev,
 
 static void nci_reset_req(struct nci_dev *ndev, unsigned long opt)
 {
-	nci_send_cmd(ndev, NCI_OP_CORE_RESET_CMD, 0, NULL);
+	struct nci_core_reset_cmd cmd;
+
+	cmd.reset_type = NCI_RESET_TYPE_RESET_CONFIG;
+	nci_send_cmd(ndev, NCI_OP_CORE_RESET_CMD, 1, &cmd);
 }
 
 static void nci_init_req(struct nci_dev *ndev, unsigned long opt)
@@ -136,17 +139,11 @@ static void nci_init_req(struct nci_dev *ndev, unsigned long opt)
 
 static void nci_init_complete_req(struct nci_dev *ndev, unsigned long opt)
 {
-	struct nci_core_conn_create_cmd conn_cmd;
 	struct nci_rf_disc_map_cmd cmd;
 	struct disc_map_config *cfg = cmd.mapping_configs;
 	__u8 *num = &cmd.num_mapping_configs;
 	int i;
 
-	/* create static rf connection */
-	conn_cmd.target_handle = 0;
-	conn_cmd.num_target_specific_params = 0;
-	nci_send_cmd(ndev, NCI_OP_CORE_CONN_CREATE_CMD, 2, &conn_cmd);
-
 	/* set rf mapping configurations */
 	*num = 0;
 
@@ -470,7 +467,7 @@ static int nci_data_exchange(struct nfc_dev *nfc_dev, __u32 target_idx,
 	ndev->data_exchange_cb = cb;
 	ndev->data_exchange_cb_context = cb_context;
 
-	rc = nci_send_data(ndev, ndev->conn_id, skb);
+	rc = nci_send_data(ndev, NCI_STATIC_RF_CONN_ID, skb);
 	if (rc)
 		clear_bit(NCI_DATA_EXCHANGE, &ndev->flags);
 
@@ -726,7 +723,10 @@ static void nci_tx_work(struct work_struct *work)
 		if (!skb)
 			return;
 
-		atomic_dec(&ndev->credits_cnt);
+		/* Check if data flow control is used */
+		if (atomic_read(&ndev->credits_cnt) !=
+				NCI_DATA_FLOW_CONTROL_NOT_USED)
+			atomic_dec(&ndev->credits_cnt);
 
 		nfc_dbg("NCI TX: MT=data, PBF=%d, conn_id=%d, plen=%d",
 				nci_pbf(skb->data),
diff --git a/net/nfc/nci/data.c b/net/nfc/nci/data.c
index e5ed90fc..511fb96 100644
--- a/net/nfc/nci/data.c
+++ b/net/nfc/nci/data.c
@@ -95,7 +95,8 @@ static int nci_queue_tx_data_frags(struct nci_dev *ndev,
 	__skb_queue_head_init(&frags_q);
 
 	while (total_len) {
-		frag_len = min_t(int, total_len, ndev->max_pkt_payload_size);
+		frag_len =
+			min_t(int, total_len, ndev->max_data_pkt_payload_size);
 
 		skb_frag = nci_skb_alloc(ndev,
 					(NCI_DATA_HDR_SIZE + frag_len),
@@ -151,7 +152,7 @@ int nci_send_data(struct nci_dev *ndev, __u8 conn_id, struct sk_buff *skb)
 	nfc_dbg("entry, conn_id 0x%x, plen %d", conn_id, skb->len);
 
 	/* check if the packet need to be fragmented */
-	if (skb->len <= ndev->max_pkt_payload_size) {
+	if (skb->len <= ndev->max_data_pkt_payload_size) {
 		/* no need to fragment packet */
 		nci_push_data_hdr(ndev, conn_id, skb, NCI_PBF_LAST);
 
diff --git a/net/nfc/nci/lib.c b/net/nfc/nci/lib.c
index b19dc2f..e99adcf 100644
--- a/net/nfc/nci/lib.c
+++ b/net/nfc/nci/lib.c
@@ -42,12 +42,9 @@ int nci_to_errno(__u8 code)
 	case NCI_STATUS_REJECTED:
 		return -EBUSY;
 
-	case NCI_STATUS_MESSAGE_CORRUPTED:
+	case NCI_STATUS_RF_FRAME_CORRUPTED:
 		return -EBADMSG;
 
-	case NCI_STATUS_BUFFER_FULL:
-		return -ENOBUFS;
-
 	case NCI_STATUS_NOT_INITIALIZED:
 		return -EHOSTDOWN;
 
@@ -80,9 +77,6 @@ int nci_to_errno(__u8 code)
 	case NCI_STATUS_NFCEE_TIMEOUT_ERROR:
 		return -ETIMEDOUT;
 
-	case NCI_STATUS_RF_LINK_LOSS_ERROR:
-		return -ENOLINK;
-
 	case NCI_STATUS_MAX_ACTIVE_NFCEE_INTERFACES_REACHED:
 		return -EDQUOT;
 
diff --git a/net/nfc/nci/ntf.c b/net/nfc/nci/ntf.c
index 96633f5..c1bf541 100644
--- a/net/nfc/nci/ntf.c
+++ b/net/nfc/nci/ntf.c
@@ -54,7 +54,7 @@ static void nci_core_conn_credits_ntf_packet(struct nci_dev *ndev,
 			ntf->conn_entries[i].conn_id,
 			ntf->conn_entries[i].credits);
 
-		if (ntf->conn_entries[i].conn_id == ndev->conn_id) {
+		if (ntf->conn_entries[i].conn_id == NCI_STATIC_RF_CONN_ID) {
 			/* found static rf connection */
 			atomic_add(ntf->conn_entries[i].credits,
 				&ndev->credits_cnt);
@@ -66,22 +66,12 @@ static void nci_core_conn_credits_ntf_packet(struct nci_dev *ndev,
 		queue_work(ndev->tx_wq, &ndev->tx_work);
 }
 
-static void nci_rf_field_info_ntf_packet(struct nci_dev *ndev,
-					struct sk_buff *skb)
-{
-	struct nci_rf_field_info_ntf *ntf = (void *) skb->data;
-
-	nfc_dbg("entry, rf_field_status %d", ntf->rf_field_status);
-}
-
-static int nci_rf_activate_nfca_passive_poll(struct nci_dev *ndev,
-			struct nci_rf_activate_ntf *ntf, __u8 *data)
+static __u8 *nci_extract_rf_params_nfca_passive_poll(struct nci_dev *ndev,
+			struct nci_rf_intf_activated_ntf *ntf, __u8 *data)
 {
 	struct rf_tech_specific_params_nfca_poll *nfca_poll;
-	struct activation_params_nfca_poll_iso_dep *nfca_poll_iso_dep;
 
 	nfca_poll = &ntf->rf_tech_specific_params.nfca_poll;
-	nfca_poll_iso_dep = &ntf->activation_params.nfca_poll_iso_dep;
 
 	nfca_poll->sens_res = __le16_to_cpu(*((__u16 *)data));
 	data += 2;
@@ -100,32 +90,32 @@ static int nci_rf_activate_nfca_passive_poll(struct nci_dev *ndev,
 	if (nfca_poll->sel_res_len != 0)
 		nfca_poll->sel_res = *data++;
 
-	ntf->rf_interface_type = *data++;
-	ntf->activation_params_len = *data++;
-
-	nfc_dbg("sel_res_len %d, sel_res 0x%x, rf_interface_type %d, activation_params_len %d",
+	nfc_dbg("sel_res_len %d, sel_res 0x%x",
 		nfca_poll->sel_res_len,
-		nfca_poll->sel_res,
-		ntf->rf_interface_type,
-		ntf->activation_params_len);
-
-	switch (ntf->rf_interface_type) {
-	case NCI_RF_INTERFACE_ISO_DEP:
-		nfca_poll_iso_dep->rats_res_len = *data++;
-		if (nfca_poll_iso_dep->rats_res_len > 0) {
-			memcpy(nfca_poll_iso_dep->rats_res,
+		nfca_poll->sel_res);
+
+	return data;
+}
+
+static int nci_extract_activation_params_iso_dep(struct nci_dev *ndev,
+			struct nci_rf_intf_activated_ntf *ntf, __u8 *data)
+{
+	struct activation_params_nfca_poll_iso_dep *nfca_poll;
+
+	switch (ntf->activation_rf_tech_and_mode) {
+	case NCI_NFC_A_PASSIVE_POLL_MODE:
+		nfca_poll = &ntf->activation_params.nfca_poll_iso_dep;
+		nfca_poll->rats_res_len = *data++;
+		if (nfca_poll->rats_res_len > 0) {
+			memcpy(nfca_poll->rats_res,
 				data,
-				nfca_poll_iso_dep->rats_res_len);
+				nfca_poll->rats_res_len);
 		}
 		break;
 
-	case NCI_RF_INTERFACE_FRAME:
-		/* no activation params */
-		break;
-
 	default:
-		nfc_err("unsupported rf_interface_type 0x%x",
-			ntf->rf_interface_type);
+		nfc_err("unsupported activation_rf_tech_and_mode 0x%x",
+			ntf->activation_rf_tech_and_mode);
 		return -EPROTO;
 	}
 
@@ -133,7 +123,7 @@ static int nci_rf_activate_nfca_passive_poll(struct nci_dev *ndev,
 }
 
 static void nci_target_found(struct nci_dev *ndev,
-				struct nci_rf_activate_ntf *ntf)
+				struct nci_rf_intf_activated_ntf *ntf)
 {
 	struct nfc_target nfc_tgt;
 
@@ -141,6 +131,8 @@ static void nci_target_found(struct nci_dev *ndev,
 		nfc_tgt.supported_protocols = NFC_PROTO_MIFARE_MASK;
 	else if (ntf->rf_protocol == NCI_RF_PROTOCOL_ISO_DEP)	/* 4A */
 		nfc_tgt.supported_protocols = NFC_PROTO_ISO14443_MASK;
+	else
+		nfc_tgt.supported_protocols = 0;
 
 	nfc_tgt.sens_res = ntf->rf_tech_specific_params.nfca_poll.sens_res;
 	nfc_tgt.sel_res = ntf->rf_tech_specific_params.nfca_poll.sel_res;
@@ -158,49 +150,86 @@ static void nci_target_found(struct nci_dev *ndev,
 	nfc_targets_found(ndev->nfc_dev, &nfc_tgt, 1);
 }
 
-static void nci_rf_activate_ntf_packet(struct nci_dev *ndev,
-					struct sk_buff *skb)
+static void nci_rf_intf_activated_ntf_packet(struct nci_dev *ndev,
+						struct sk_buff *skb)
 {
-	struct nci_rf_activate_ntf ntf;
+	struct nci_rf_intf_activated_ntf ntf;
 	__u8 *data = skb->data;
-	int rc = -1;
+	int err = 0;
 
 	clear_bit(NCI_DISCOVERY, &ndev->flags);
 	set_bit(NCI_POLL_ACTIVE, &ndev->flags);
 
-	ntf.target_handle = *data++;
+	ntf.rf_discovery_id = *data++;
+	ntf.rf_interface_type = *data++;
 	ntf.rf_protocol = *data++;
-	ntf.rf_tech_and_mode = *data++;
+	ntf.activation_rf_tech_and_mode = *data++;
 	ntf.rf_tech_specific_params_len = *data++;
 
-	nfc_dbg("target_handle %d, rf_protocol 0x%x, rf_tech_and_mode 0x%x, rf_tech_specific_params_len %d",
-		ntf.target_handle,
-		ntf.rf_protocol,
-		ntf.rf_tech_and_mode,
+	nfc_dbg("rf_discovery_id %d", ntf.rf_discovery_id);
+	nfc_dbg("rf_interface_type 0x%x", ntf.rf_interface_type);
+	nfc_dbg("rf_protocol 0x%x", ntf.rf_protocol);
+	nfc_dbg("activation_rf_tech_and_mode 0x%x",
+		ntf.activation_rf_tech_and_mode);
+	nfc_dbg("rf_tech_specific_params_len %d",
 		ntf.rf_tech_specific_params_len);
 
-	switch (ntf.rf_tech_and_mode) {
-	case NCI_NFC_A_PASSIVE_POLL_MODE:
-		rc = nci_rf_activate_nfca_passive_poll(ndev, &ntf,
-			data);
-		break;
+	if (ntf.rf_tech_specific_params_len > 0) {
+		switch (ntf.activation_rf_tech_and_mode) {
+		case NCI_NFC_A_PASSIVE_POLL_MODE:
+			data = nci_extract_rf_params_nfca_passive_poll(ndev,
+				&ntf, data);
+			break;
+
+		default:
+			nfc_err("unsupported activation_rf_tech_and_mode 0x%x",
+				ntf.activation_rf_tech_and_mode);
+			return;
+		}
+	}
 
-	default:
-		nfc_err("unsupported rf_tech_and_mode 0x%x",
-			ntf.rf_tech_and_mode);
-		return;
+	ntf.data_exch_rf_tech_and_mode = *data++;
+	ntf.data_exch_tx_bit_rate = *data++;
+	ntf.data_exch_rx_bit_rate = *data++;
+	ntf.activation_params_len = *data++;
+
+	nfc_dbg("data_exch_rf_tech_and_mode 0x%x",
+		ntf.data_exch_rf_tech_and_mode);
+	nfc_dbg("data_exch_tx_bit_rate 0x%x",
+		ntf.data_exch_tx_bit_rate);
+	nfc_dbg("data_exch_rx_bit_rate 0x%x",
+		ntf.data_exch_rx_bit_rate);
+	nfc_dbg("activation_params_len %d",
+		ntf.activation_params_len);
+
+	if (ntf.activation_params_len > 0) {
+		switch (ntf.rf_interface_type) {
+		case NCI_RF_INTERFACE_ISO_DEP:
+			err = nci_extract_activation_params_iso_dep(ndev,
+				&ntf, data);
+			break;
+
+		case NCI_RF_INTERFACE_FRAME:
+			/* no activation params */
+			break;
+
+		default:
+			nfc_err("unsupported rf_interface_type 0x%x",
+				ntf.rf_interface_type);
+			return;
+		}
 	}
 
-	if (!rc)
+	if (!err)
 		nci_target_found(ndev, &ntf);
 }
 
 static void nci_rf_deactivate_ntf_packet(struct nci_dev *ndev,
 					struct sk_buff *skb)
 {
-	__u8 type = skb->data[0];
+	struct nci_rf_deactivate_ntf *ntf = (void *) skb->data;
 
-	nfc_dbg("entry, type 0x%x", type);
+	nfc_dbg("entry, type 0x%x, reason 0x%x", ntf->type, ntf->reason);
 
 	clear_bit(NCI_POLL_ACTIVE, &ndev->flags);
 	ndev->target_active_prot = 0;
@@ -214,6 +243,9 @@ static void nci_rf_deactivate_ntf_packet(struct nci_dev *ndev,
 		ndev->rx_data_reassembly = 0;
 	}
 
+	/* set the available credits to initial value */
+	atomic_set(&ndev->credits_cnt, ndev->initial_num_credits);
+
 	/* complete the data exchange transaction, if exists */
 	if (test_bit(NCI_DATA_EXCHANGE, &ndev->flags))
 		nci_data_exchange_complete(ndev, NULL, -EIO);
@@ -237,12 +269,8 @@ void nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb)
 		nci_core_conn_credits_ntf_packet(ndev, skb);
 		break;
 
-	case NCI_OP_RF_FIELD_INFO_NTF:
-		nci_rf_field_info_ntf_packet(ndev, skb);
-		break;
-
-	case NCI_OP_RF_ACTIVATE_NTF:
-		nci_rf_activate_ntf_packet(ndev, skb);
+	case NCI_OP_RF_INTF_ACTIVATED_NTF:
+		nci_rf_intf_activated_ntf_packet(ndev, skb);
 		break;
 
 	case NCI_OP_RF_DEACTIVATE_NTF:
diff --git a/net/nfc/nci/rsp.c b/net/nfc/nci/rsp.c
index 0403d4c..0591f5a 100644
--- a/net/nfc/nci/rsp.c
+++ b/net/nfc/nci/rsp.c
@@ -42,10 +42,11 @@ static void nci_core_reset_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb)
 
 	nfc_dbg("entry, status 0x%x", rsp->status);
 
-	if (rsp->status == NCI_STATUS_OK)
+	if (rsp->status == NCI_STATUS_OK) {
 		ndev->nci_ver = rsp->nci_ver;
-
-	nfc_dbg("nci_ver 0x%x", ndev->nci_ver);
+		nfc_dbg("nci_ver 0x%x, config_status 0x%x",
+			rsp->nci_ver, rsp->config_status);
+	}
 
 	nci_req_complete(ndev, rsp->status);
 }
@@ -58,13 +59,13 @@ static void nci_core_init_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb)
 	nfc_dbg("entry, status 0x%x", rsp_1->status);
 
 	if (rsp_1->status != NCI_STATUS_OK)
-		return;
+		goto exit;
 
 	ndev->nfcc_features = __le32_to_cpu(rsp_1->nfcc_features);
 	ndev->num_supported_rf_interfaces = rsp_1->num_supported_rf_interfaces;
 
 	if (ndev->num_supported_rf_interfaces >
-		NCI_MAX_SUPPORTED_RF_INTERFACES) {
+			NCI_MAX_SUPPORTED_RF_INTERFACES) {
 		ndev->num_supported_rf_interfaces =
 			NCI_MAX_SUPPORTED_RF_INTERFACES;
 	}
@@ -73,20 +74,26 @@ static void nci_core_init_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb)
 		rsp_1->supported_rf_interfaces,
 		ndev->num_supported_rf_interfaces);
 
-	rsp_2 = (void *) (skb->data + 6 + ndev->num_supported_rf_interfaces);
+	rsp_2 = (void *) (skb->data + 6 + rsp_1->num_supported_rf_interfaces);
 
 	ndev->max_logical_connections =
 		rsp_2->max_logical_connections;
 	ndev->max_routing_table_size =
 		__le16_to_cpu(rsp_2->max_routing_table_size);
-	ndev->max_control_packet_payload_length =
-		rsp_2->max_control_packet_payload_length;
-	ndev->rf_sending_buffer_size =
-		__le16_to_cpu(rsp_2->rf_sending_buffer_size);
-	ndev->rf_receiving_buffer_size =
-		__le16_to_cpu(rsp_2->rf_receiving_buffer_size);
-	ndev->manufacturer_id =
-		__le16_to_cpu(rsp_2->manufacturer_id);
+	ndev->max_ctrl_pkt_payload_len =
+		rsp_2->max_ctrl_pkt_payload_len;
+	ndev->max_size_for_large_params =
+		__le16_to_cpu(rsp_2->max_size_for_large_params);
+	ndev->max_data_pkt_payload_size =
+		rsp_2->max_data_pkt_payload_size;
+	ndev->initial_num_credits =
+		rsp_2->initial_num_credits;
+	ndev->manufact_id =
+		rsp_2->manufact_id;
+	ndev->manufact_specific_info =
+		__le32_to_cpu(rsp_2->manufact_specific_info);
+
+	atomic_set(&ndev->credits_cnt, ndev->initial_num_credits);
 
 	nfc_dbg("nfcc_features 0x%x",
 		ndev->nfcc_features);
@@ -104,39 +111,23 @@ static void nci_core_init_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb)
 		ndev->max_logical_connections);
 	nfc_dbg("max_routing_table_size %d",
 		ndev->max_routing_table_size);
-	nfc_dbg("max_control_packet_payload_length %d",
-		ndev->max_control_packet_payload_length);
-	nfc_dbg("rf_sending_buffer_size %d",
-		ndev->rf_sending_buffer_size);
-	nfc_dbg("rf_receiving_buffer_size %d",
-		ndev->rf_receiving_buffer_size);
-	nfc_dbg("manufacturer_id 0x%x",
-		ndev->manufacturer_id);
-
+	nfc_dbg("max_ctrl_pkt_payload_len %d",
+		ndev->max_ctrl_pkt_payload_len);
+	nfc_dbg("max_size_for_large_params %d",
+		ndev->max_size_for_large_params);
+	nfc_dbg("max_data_pkt_payload_size %d",
+		ndev->max_data_pkt_payload_size);
+	nfc_dbg("initial_num_credits %d",
+		ndev->initial_num_credits);
+	nfc_dbg("manufact_id 0x%x",
+		ndev->manufact_id);
+	nfc_dbg("manufact_specific_info 0x%x",
+		ndev->manufact_specific_info);
+
+exit:
 	nci_req_complete(ndev, rsp_1->status);
 }
 
-static void nci_core_conn_create_rsp_packet(struct nci_dev *ndev,
-						struct sk_buff *skb)
-{
-	struct nci_core_conn_create_rsp *rsp = (void *) skb->data;
-
-	nfc_dbg("entry, status 0x%x", rsp->status);
-
-	if (rsp->status != NCI_STATUS_OK)
-		return;
-
-	ndev->max_pkt_payload_size = rsp->max_pkt_payload_size;
-	ndev->initial_num_credits = rsp->initial_num_credits;
-	ndev->conn_id = rsp->conn_id;
-
-	atomic_set(&ndev->credits_cnt, ndev->initial_num_credits);
-
-	nfc_dbg("max_pkt_payload_size %d", ndev->max_pkt_payload_size);
-	nfc_dbg("initial_num_credits %d", ndev->initial_num_credits);
-	nfc_dbg("conn_id %d", ndev->conn_id);
-}
-
 static void nci_rf_disc_map_rsp_packet(struct nci_dev *ndev,
 					struct sk_buff *skb)
 {
@@ -196,10 +187,6 @@ void nci_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb)
 		nci_core_init_rsp_packet(ndev, skb);
 		break;
 
-	case NCI_OP_CORE_CONN_CREATE_RSP:
-		nci_core_conn_create_rsp_packet(ndev, skb);
-		break;
-
 	case NCI_OP_RF_DISCOVER_MAP_RSP:
 		nci_rf_disc_map_rsp_packet(ndev, skb);
 		break;