nci_core_conn_create has a new parameter so it can return the id of the
new connection. Also now you can't call nci_core_conn_create
without waiting for the answer from the previous call.
Signed-off-by: Robert Dolca <robert.do...@intel.com>
---
drivers/nfc/st-nci/st-nci_se.c | 2 +-
include/net/nfc/nci_core.h | 11 ++++++++---
net/nfc/nci/core.c | 14 ++++++++++----
net/nfc/nci/rsp.c | 6 ++++++
4 files changed, 25 insertions(+), 8 deletions(-)
diff --git a/drivers/nfc/st-nci/st-nci_se.c b/drivers/nfc/st-nci/st-nci_se.c
index c742ef6..65ba433 100644
--- a/drivers/nfc/st-nci/st-nci_se.c
+++ b/drivers/nfc/st-nci/st-nci_se.c
@@ -524,7 +524,7 @@ static int st_nci_hci_network_init(struct nci_dev *ndev)
r = nci_core_conn_create(ndev, NCI_DESTINATION_NFCEE, 1,
sizeof(struct
core_conn_create_dest_spec_params) +
sizeof(struct dest_spec_params),
- dest_params);
+ dest_params, NULL);
if (r != NCI_STATUS_OK)
goto free_dest_params;
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 61dcaf2..880b5cf 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -260,6 +260,11 @@ struct nci_dev {
/* Save RF Discovery ID or NFCEE ID under conn_create */
__u8 cur_id;
+ /* Pointer to the address where the next connection ID
+ * will be stored */
+ __u8 *next_conn_id;
+ __u8 conn_busy;
+
/* stored during nci_data_exchange */
struct sk_buff *rx_data_reassembly;
@@ -294,9 +299,9 @@ 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, u8 destination_type,
- u8 number_destination_params,
- size_t params_len,
- struct core_conn_create_dest_spec_params *params);
+ u8 number_destination_params, size_t params_len,
+ struct core_conn_create_dest_spec_params *params,
+ u8 *conn_id);
int nci_core_conn_close(struct nci_dev *ndev, u8 conn_id);
struct nci_hci_dev *nci_hci_allocate(struct nci_dev *ndev);
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 5d61b6e..a9119e1 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -589,18 +589,22 @@ static void nci_core_conn_create_req(struct nci_dev
*ndev, unsigned long opt)
}
int nci_core_conn_create(struct nci_dev *ndev, u8 destination_type,
- u8 number_destination_params,
- size_t params_len,
- struct core_conn_create_dest_spec_params *params)
+ u8 number_destination_params, size_t params_len,
+ struct core_conn_create_dest_spec_params *params,
+ u8 *conn_id)
{
int r;
struct nci_core_conn_create_cmd *cmd;
struct core_conn_create_data data;
+ mutex_lock(&ndev->req_lock);
+
data.length = params_len + sizeof(struct nci_core_conn_create_cmd);
cmd = kzalloc(data.length, GFP_KERNEL);
- if (!cmd)
+ if (!cmd) {
+ mutex_unlock(&ndev->req_lock);
return -ENOMEM;
+ }
cmd->destination_type = destination_type;
cmd->number_destination_params = number_destination_params;
@@ -608,10 +612,12 @@ int nci_core_conn_create(struct nci_dev *ndev, u8
destination_type,
data.cmd = cmd;
ndev->cur_id = params->value[DEST_SPEC_PARAMS_ID_INDEX];
+ ndev->next_conn_id = conn_id;
r = __nci_request(ndev, nci_core_conn_create_req,
(unsigned long)&data,
msecs_to_jiffies(NCI_CMD_TIMEOUT));
+ mutex_unlock(&ndev->req_lock);
kfree(cmd);
return r;
}
diff --git a/net/nfc/nci/rsp.c b/net/nfc/nci/rsp.c
index 0efab0b..e83e664 100644
--- a/net/nfc/nci/rsp.c
+++ b/net/nfc/nci/rsp.c
@@ -244,6 +244,12 @@ static void nci_core_conn_create_rsp_packet(struct nci_dev
*ndev,
conn_info->id = ndev->cur_id;
conn_info->conn_id = rsp->conn_id;
+ /* Set the conn ID to the address provided by the caller */
+ if (ndev->next_conn_id) {
+ *ndev->next_conn_id = rsp->conn_id;
+ ndev->next_conn_id = NULL;
+ }
+
/* Note: data_exchange_cb and data_exchange_cb_context need to
* be specify out of nci_core_conn_create_rsp_packet
*/
--
1.9.1
--
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