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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/include/net/nfc/nfc.h
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/include/net/nfc/nfc.h')
-rw-r--r--kernel/include/net/nfc/nfc.h65
1 files changed, 64 insertions, 1 deletions
diff --git a/kernel/include/net/nfc/nfc.h b/kernel/include/net/nfc/nfc.h
index 7ac029c07..dcfcfc9c0 100644
--- a/kernel/include/net/nfc/nfc.h
+++ b/kernel/include/net/nfc/nfc.h
@@ -68,7 +68,7 @@ struct nfc_ops {
int (*activate_target)(struct nfc_dev *dev, struct nfc_target *target,
u32 protocol);
void (*deactivate_target)(struct nfc_dev *dev,
- struct nfc_target *target);
+ struct nfc_target *target, u8 mode);
int (*im_transceive)(struct nfc_dev *dev, struct nfc_target *target,
struct sk_buff *skb, data_exchange_cb_t cb,
void *cb_context);
@@ -165,6 +165,12 @@ struct nfc_genl_data {
struct mutex genl_data_mutex;
};
+struct nfc_vendor_cmd {
+ __u32 vendor_id;
+ __u32 subcmd;
+ int (*doit)(struct nfc_dev *dev, void *data, size_t data_len);
+};
+
struct nfc_dev {
int idx;
u32 target_next_idx;
@@ -193,7 +199,11 @@ struct nfc_dev {
struct rfkill *rfkill;
+ struct nfc_vendor_cmd *vendor_cmds;
+ int n_vendor_cmds;
+
struct nfc_ops *ops;
+ struct genl_info *cur_cmd_info;
};
#define to_nfc_dev(_dev) container_of(_dev, struct nfc_dev, dev)
@@ -296,4 +306,57 @@ struct nfc_se *nfc_find_se(struct nfc_dev *dev, u32 se_idx);
void nfc_send_to_raw_sock(struct nfc_dev *dev, struct sk_buff *skb,
u8 payload_type, u8 direction);
+static inline int nfc_set_vendor_cmds(struct nfc_dev *dev,
+ struct nfc_vendor_cmd *cmds,
+ int n_cmds)
+{
+ if (dev->vendor_cmds || dev->n_vendor_cmds)
+ return -EINVAL;
+
+ dev->vendor_cmds = cmds;
+ dev->n_vendor_cmds = n_cmds;
+
+ return 0;
+}
+
+struct sk_buff *__nfc_alloc_vendor_cmd_reply_skb(struct nfc_dev *dev,
+ enum nfc_attrs attr,
+ u32 oui, u32 subcmd,
+ int approxlen);
+int nfc_vendor_cmd_reply(struct sk_buff *skb);
+
+/**
+ * nfc_vendor_cmd_alloc_reply_skb - allocate vendor command reply
+ * @dev: nfc device
+ * @oui: vendor oui
+ * @approxlen: an upper bound of the length of the data that will
+ * be put into the skb
+ *
+ * This function allocates and pre-fills an skb for a reply to
+ * a vendor command. Since it is intended for a reply, calling
+ * it outside of a vendor command's doit() operation is invalid.
+ *
+ * The returned skb is pre-filled with some identifying data in
+ * a way that any data that is put into the skb (with skb_put(),
+ * nla_put() or similar) will end up being within the
+ * %NFC_ATTR_VENDOR_DATA attribute, so all that needs to be done
+ * with the skb is adding data for the corresponding userspace tool
+ * which can then read that data out of the vendor data attribute.
+ * You must not modify the skb in any other way.
+ *
+ * When done, call nfc_vendor_cmd_reply() with the skb and return
+ * its error code as the result of the doit() operation.
+ *
+ * Return: An allocated and pre-filled skb. %NULL if any errors happen.
+ */
+static inline struct sk_buff *
+nfc_vendor_cmd_alloc_reply_skb(struct nfc_dev *dev,
+ u32 oui, u32 subcmd, int approxlen)
+{
+ return __nfc_alloc_vendor_cmd_reply_skb(dev,
+ NFC_ATTR_VENDOR_DATA,
+ oui,
+ subcmd, approxlen);
+}
+
#endif /* __NET_NFC_H */