Add nci_core_conn_create handler according to NFC Forum NCI specification.
It is necessary for example for secure element handling.
Signed-off-by: Christophe Ricard <christophe-h.ricard@xxxxxx>
---
include/net/nfc/nci.h | 25 +++++++++++++++++++++++++
include/net/nfc/nci_core.h | 2 ++
net/nfc/nci/core.c | 24 ++++++++++++++++++++++++
net/nfc/nci/rsp.c | 31 +++++++++++++++++++++++++++++++
4 files changed, 82 insertions(+)
diff --git a/include/net/nfc/nci.h b/include/net/nfc/nci.h
index 230f227..b8ff50c 100644
--- a/include/net/nfc/nci.h
+++ b/include/net/nfc/nci.h
@@ -243,6 +243,23 @@ struct nci_core_set_config_cmd {
struct set_config_param param; /* support 1 param per cmd is enough */
} __packed;
+#define NCI_OP_CORE_CONN_CREATE_CMD nci_opcode_pack(NCI_GID_CORE, 0x04)
+struct dest_spec_params {
+ __u8 id;
+ __u8 protocol;
+} __packed;
+
+struct core_conn_create_dest_spec_params {
+ __u8 type;
+ __u8 length;
+ struct dest_spec_params value;
+} __packed;
+
+struct nci_core_conn_create_cmd {
+ __u8 destination_type;
+ __u8 number_destination_params;
+ struct core_conn_create_dest_spec_params params;
+} __packed;
#define NCI_OP_RF_DISCOVER_MAP_CMD nci_opcode_pack(NCI_GID_RF_MGMT, 0x00)
struct disc_map_config {
__u8 rf_protocol;
@@ -327,6 +344,14 @@ struct nci_core_set_config_rsp {
__u8 params_id[0]; /* variable size array */
} __packed;
+#define NCI_OP_CORE_CONN_CREATE_RSP nci_opcode_pack(NCI_GID_CORE, 0x04)
+struct nci_core_conn_create_rsp {
+ __u8 status;
+ __u8 max_ctrl_pkt_payload_len;
+ __u8 credits;
+ __u8 conn_id;
+} __packed;
+
#define NCI_OP_RF_DISCOVER_MAP_RSP nci_opcode_pack(NCI_GID_RF_MGMT, 0x00)
#define NCI_OP_RF_DISCOVER_RSP nci_opcode_pack(NCI_GID_RF_MGMT, 0x03)
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 46bdf86..21da170 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -185,6 +185,8 @@ int nci_set_config(struct nci_dev *ndev, __u8 id, size_t len, __u8 *val);
int nci_nfcee_discover(struct nci_dev *ndev, u8 action);
int nci_nfcee_mode_set(struct nci_dev *ndev, u8 nfcee_id, u8 nfcee_mode);
+int nci_core_conn_create(struct nci_dev *ndev,
+ struct core_conn_create_dest_spec_params *params);
static inline struct sk_buff *nci_skb_alloc(struct nci_dev *ndev,
unsigned int len,
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 0de7d90..cbe6ea3 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -494,6 +494,30 @@ int nci_nfcee_mode_set(struct nci_dev *ndev, u8 nfcee_id, u8 nfcee_mode)
}
EXPORT_SYMBOL(nci_nfcee_mode_set);
+static void nci_core_conn_create_req(struct nci_dev *ndev, unsigned long opt)
+{
+ struct nci_core_conn_create_cmd cmd;
+ struct core_conn_create_dest_spec_params *params =
+ (struct core_conn_create_dest_spec_params *)opt;
+
+ cmd.destination_type = NCI_DESTINATION_NFCEE;
+ cmd.number_destination_params = 1;
+ memcpy(&cmd.params.type, params,
+ sizeof(struct core_conn_create_dest_spec_params));
+ nci_send_cmd(ndev, NCI_OP_CORE_CONN_CREATE_CMD,
+ sizeof(struct nci_core_conn_create_cmd), &cmd);
+}
+
+int nci_core_conn_create(struct nci_dev *ndev,
+ struct core_conn_create_dest_spec_params *params)
+{
+ ndev->cur_id = params->value.id;
+ return nci_request(ndev, nci_core_conn_create_req,
+ (unsigned long)params,
+ msecs_to_jiffies(NCI_CMD_TIMEOUT));
+}
+EXPORT_SYMBOL(nci_core_conn_create);
+
static int nci_set_local_general_bytes(struct nfc_dev *nfc_dev)
{
struct nci_dev *ndev = nfc_get_drvdata(nfc_dev);
diff --git a/net/nfc/nci/rsp.c b/net/nfc/nci/rsp.c
index cb358cd..5b3c66e 100644
--- a/net/nfc/nci/rsp.c
+++ b/net/nfc/nci/rsp.c
@@ -218,6 +218,33 @@ static void nci_nfcee_mode_set_rsp_packet(struct nci_dev *ndev,
nci_req_complete(ndev, status);
}
+static void nci_core_conn_create_rsp_packet(struct nci_dev *ndev,
+ struct sk_buff *skb)
+{
+ __u8 status = skb->data[0];
+ struct nci_conn_info *conn_info;
+ struct nci_core_conn_create_rsp *rsp;
+
+ pr_debug("status 0x%x\n", status);
+
+ if (status == NCI_STATUS_OK) {
+ rsp = (struct nci_core_conn_create_rsp *)skb->data;
+ conn_info = ndev->conn_info_by_id[ndev->cur_id];
+ if (!conn_info) {
+ status = NCI_STATUS_REJECTED;
+ goto exit;
+ }
+
+ conn_info->conn_id = rsp->conn_id;
+ ndev->conn_info_by_conn_id[conn_info->conn_id] = conn_info;
+ conn_info->max_pkt_payload_len = rsp->max_ctrl_pkt_payload_len;
+ atomic_set(&conn_info->credits_cnt, rsp->credits);
+ }
+
+exit:
+ nci_req_complete(ndev, status);
+}
+
void nci_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb)
{
__u16 rsp_opcode = nci_opcode(skb->data);
@@ -247,6 +274,10 @@ void nci_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb)
nci_core_set_config_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;
--
2.1.0
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