diff options
Diffstat (limited to 'net/nfc/nci/core.c')
| -rw-r--r-- | net/nfc/nci/core.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c index 49ff32106080..56d57c93ea1a 100644 --- a/net/nfc/nci/core.c +++ b/net/nfc/nci/core.c @@ -28,6 +28,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": %s: " fmt, __func__ #include <linux/module.h> +#include <linux/kernel.h> #include <linux/types.h> #include <linux/workqueue.h> #include <linux/completion.h> @@ -961,6 +962,14 @@ struct nci_dev *nci_allocate_device(struct nci_ops *ops, return NULL; ndev->ops = ops; + + if (ops->n_prop_ops > NCI_MAX_PROPRIETARY_CMD) { + pr_err("Too many proprietary commands: %zd\n", + ops->n_prop_ops); + ops->prop_ops = NULL; + ops->n_prop_ops = 0; + } + ndev->tx_headroom = tx_headroom; ndev->tx_tailroom = tx_tailroom; init_completion(&ndev->req_completion); @@ -1165,6 +1174,49 @@ int nci_send_cmd(struct nci_dev *ndev, __u16 opcode, __u8 plen, void *payload) return 0; } +/* Proprietary commands API */ +static struct nci_prop_ops *prop_cmd_lookup(struct nci_dev *ndev, + __u16 opcode) +{ + size_t i; + struct nci_prop_ops *prop_op; + + if (!ndev->ops->prop_ops || !ndev->ops->n_prop_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; + } + + return NULL; +} + +int nci_prop_rsp_packet(struct nci_dev *ndev, __u16 rsp_opcode, + struct sk_buff *skb) +{ + struct nci_prop_ops *prop_op; + + prop_op = prop_cmd_lookup(ndev, rsp_opcode); + if (!prop_op || !prop_op->rsp) + return -ENOTSUPP; + + return prop_op->rsp(ndev, skb); +} + +int nci_prop_ntf_packet(struct nci_dev *ndev, __u16 ntf_opcode, + struct sk_buff *skb) +{ + struct nci_prop_ops *prop_op; + + prop_op = prop_cmd_lookup(ndev, ntf_opcode); + if (!prop_op || !prop_op->ntf) + return -ENOTSUPP; + + return prop_op->ntf(ndev, skb); +} + /* ---- NCI TX Data worker thread ---- */ static void nci_tx_work(struct work_struct *work) |