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authorRobert Dolca <robert.dolca@intel.com>2015-10-22 12:11:38 +0300
committerSamuel Ortiz <sameo@linux.intel.com>2015-10-25 19:12:57 +0100
commit0a97a3cba298fd989802bf34541c94b6488c3834 (patch)
treec9f980a8390536964381099a45f73e604a59ee74 /net/nfc
parent7bc4824ed5cf9feb0173b90a6bec28f694a5f7ce (diff)
downloadlinux-0a97a3cba298fd989802bf34541c94b6488c3834.tar.bz2
NFC: nci: Allow the driver to set handler for core nci ops
The driver may be required to act when some responses or notifications arrive. For example the NCI core does not have a handler for NCI_OP_CORE_GET_CONFIG_RSP. The NFCC can send a config response that has to be read by the driver and the packet may contain vendor specific data. The Fields Peak driver needs to take certain actions when a reset notification arrives (packet also not handled by the nfc core). The driver handlers do not interfere with the core and they are called after the core processes the packet. Signed-off-by: Robert Dolca <robert.dolca@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'net/nfc')
-rw-r--r--net/nfc/nci/core.c71
-rw-r--r--net/nfc/nci/ntf.c3
-rw-r--r--net/nfc/nci/rsp.c1
3 files changed, 54 insertions, 21 deletions
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 5b4f48a827d9..30c270862884 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -1242,46 +1242,77 @@ int nci_send_cmd(struct nci_dev *ndev, __u16 opcode, __u8 plen, void *payload)
}
/* Proprietary commands API */
-static struct nci_prop_ops *prop_cmd_lookup(struct nci_dev *ndev,
- __u16 opcode)
+static struct nci_prop_ops *ops_cmd_lookup(struct nci_prop_ops *ops,
+ size_t n_ops,
+ __u16 opcode)
{
size_t i;
- struct nci_prop_ops *prop_op;
+ struct nci_prop_ops *op;
- if (!ndev->ops->prop_ops || !ndev->ops->n_prop_ops)
+ if (!ops || !n_ops)
return NULL;
- for (i = 0; i < ndev->ops->n_prop_ops; i++) {
- prop_op = &ndev->ops->prop_ops[i];
- if (prop_op->opcode == opcode)
- return prop_op;
+ for (i = 0; i < n_ops; i++) {
+ op = &ops[i];
+ if (op->opcode == opcode)
+ return op;
}
return NULL;
}
-int nci_prop_rsp_packet(struct nci_dev *ndev, __u16 rsp_opcode,
- struct sk_buff *skb)
+static int nci_op_rsp_packet(struct nci_dev *ndev, __u16 rsp_opcode,
+ struct sk_buff *skb, struct nci_prop_ops *ops,
+ size_t n_ops)
{
- struct nci_prop_ops *prop_op;
+ struct nci_prop_ops *op;
- prop_op = prop_cmd_lookup(ndev, rsp_opcode);
- if (!prop_op || !prop_op->rsp)
+ op = ops_cmd_lookup(ops, n_ops, rsp_opcode);
+ if (!op || !op->rsp)
return -ENOTSUPP;
- return prop_op->rsp(ndev, skb);
+ return op->rsp(ndev, skb);
}
-int nci_prop_ntf_packet(struct nci_dev *ndev, __u16 ntf_opcode,
- struct sk_buff *skb)
+static int nci_op_ntf_packet(struct nci_dev *ndev, __u16 ntf_opcode,
+ struct sk_buff *skb, struct nci_prop_ops *ops,
+ size_t n_ops)
{
- struct nci_prop_ops *prop_op;
+ struct nci_prop_ops *op;
- prop_op = prop_cmd_lookup(ndev, ntf_opcode);
- if (!prop_op || !prop_op->ntf)
+ op = ops_cmd_lookup(ops, n_ops, ntf_opcode);
+ if (!op || !op->ntf)
return -ENOTSUPP;
- return prop_op->ntf(ndev, skb);
+ return op->ntf(ndev, skb);
+}
+
+inline int nci_prop_rsp_packet(struct nci_dev *ndev, __u16 opcode,
+ struct sk_buff *skb)
+{
+ return nci_op_rsp_packet(ndev, opcode, skb, ndev->ops->prop_ops,
+ ndev->ops->n_prop_ops);
+}
+
+inline int nci_prop_ntf_packet(struct nci_dev *ndev, __u16 opcode,
+ struct sk_buff *skb)
+{
+ return nci_op_ntf_packet(ndev, opcode, skb, ndev->ops->prop_ops,
+ ndev->ops->n_prop_ops);
+}
+
+inline int nci_core_rsp_packet(struct nci_dev *ndev, __u16 opcode,
+ struct sk_buff *skb)
+{
+ return nci_op_rsp_packet(ndev, opcode, skb, ndev->ops->core_ops,
+ ndev->ops->n_core_ops);
+}
+
+inline int nci_core_ntf_packet(struct nci_dev *ndev, __u16 opcode,
+ struct sk_buff *skb)
+{
+ return nci_op_ntf_packet(ndev, opcode, skb, ndev->ops->core_ops,
+ ndev->ops->n_core_ops);
}
/* ---- NCI TX Data worker thread ---- */
diff --git a/net/nfc/nci/ntf.c b/net/nfc/nci/ntf.c
index 5d1c2e391c56..2ada2b39e355 100644
--- a/net/nfc/nci/ntf.c
+++ b/net/nfc/nci/ntf.c
@@ -759,7 +759,7 @@ void nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb)
skb_pull(skb, NCI_CTRL_HDR_SIZE);
if (nci_opcode_gid(ntf_opcode) == NCI_GID_PROPRIETARY) {
- if (nci_prop_ntf_packet(ndev, ntf_opcode, skb)) {
+ if (nci_prop_ntf_packet(ndev, ntf_opcode, skb) == -ENOTSUPP) {
pr_err("unsupported ntf opcode 0x%x\n",
ntf_opcode);
}
@@ -805,6 +805,7 @@ void nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb)
break;
}
+ nci_core_ntf_packet(ndev, ntf_opcode, skb);
end:
kfree_skb(skb);
}
diff --git a/net/nfc/nci/rsp.c b/net/nfc/nci/rsp.c
index 408bd8f857ab..9b6eb913d801 100644
--- a/net/nfc/nci/rsp.c
+++ b/net/nfc/nci/rsp.c
@@ -355,6 +355,7 @@ void nci_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb)
break;
}
+ nci_core_rsp_packet(ndev, rsp_opcode, skb);
end:
kfree_skb(skb);