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authorChristophe Ricard <christophe.ricard@gmail.com>2015-02-03 21:48:05 +0300
committerSamuel Ortiz <sameo@linux.intel.com>2015-02-04 11:10:50 +0300
commitb16ae7160a836c4a1e443ea6efca31421e86bae1 (patch)
tree8d4185e4b41b0d71f5abe293c3183068a129a86c /net
parent12bdf27d46c9d5e490fa164551642e065105db78 (diff)
downloadlinux-b16ae7160a836c4a1e443ea6efca31421e86bae1.tar.xz
NFC: nci: Support all destinations type when creating a connection
The current implementation limits nci_core_conn_create_req() to only manage NCI_DESTINATION_NFCEE. Add new parameters to nci_core_conn_create() to support all destination types described in the NCI specification. Because there are some parameters with variable size dynamic buffer allocation is needed. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'net')
-rw-r--r--net/nfc/nci/core.c48
1 files changed, 33 insertions, 15 deletions
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 17ff5f83393c..ddfe91e43c88 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -41,6 +41,11 @@
#include <net/nfc/nci_core.h>
#include <linux/nfc.h>
+struct core_conn_create_data {
+ int length;
+ struct nci_core_conn_create_cmd *cmd;
+};
+
static void nci_cmd_work(struct work_struct *work);
static void nci_rx_work(struct work_struct *work);
static void nci_tx_work(struct work_struct *work);
@@ -509,25 +514,38 @@ 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);
+ struct core_conn_create_data *data =
+ (struct core_conn_create_data *)opt;
+
+ nci_send_cmd(ndev, NCI_OP_CORE_CONN_CREATE_CMD, data->length, data->cmd);
}
-int nci_core_conn_create(struct nci_dev *ndev,
+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)
{
- ndev->cur_id = params->value.id;
- return nci_request(ndev, nci_core_conn_create_req,
- (unsigned long)params,
- msecs_to_jiffies(NCI_CMD_TIMEOUT));
+ int r;
+ struct nci_core_conn_create_cmd *cmd;
+ struct core_conn_create_data data;
+
+ data.length = params_len + sizeof(struct nci_core_conn_create_cmd);
+ cmd = kzalloc(data.length, GFP_KERNEL);
+ if (!cmd)
+ return -ENOMEM;
+
+ cmd->destination_type = destination_type;
+ cmd->number_destination_params = number_destination_params;
+ memcpy(cmd->params, params, params_len);
+
+ data.cmd = cmd;
+ ndev->cur_id = params->value[DEST_SPEC_PARAMS_ID_INDEX];
+
+ r = __nci_request(ndev, nci_core_conn_create_req,
+ (unsigned long)&data,
+ msecs_to_jiffies(NCI_CMD_TIMEOUT));
+ kfree(cmd);
+ return r;
}
EXPORT_SYMBOL(nci_core_conn_create);