NFC: add nfc subsystem core

The NFC subsystem core is responsible for providing the device driver
interface. It is also responsible for providing an interface to the control
operations and data exchange.

Signed-off-by: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Signed-off-by: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 78 insertions, 0 deletions

diff --git a/net/nfc/nfc.h b/net/nfc/nfc.h
new file mode 100644
index 000000000000..55f83f86fe2c
--- /dev/null
+++ b/net/nfc/nfc.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2011 Instituto Nokia de Tecnologia
+ *
+ * Authors:
+ *    Lauro Ramos Venancio <lauro.venancio@openbossa.org>
+ *    Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __LOCAL_NFC_H
+#define __LOCAL_NFC_H
+
+#include <net/nfc.h>
+
+__attribute__((format (printf, 2, 3)))
+int nfc_printk(const char *level, const char *fmt, ...);
+
+#define nfc_info(fmt, arg...) nfc_printk(KERN_INFO, fmt, ##arg)
+#define nfc_err(fmt, arg...) nfc_printk(KERN_ERR, fmt, ##arg)
+#define nfc_dbg(fmt, arg...) pr_debug(fmt "\n", ##arg)
+
+extern int nfc_devlist_generation;
+extern struct mutex nfc_devlist_mutex;
+
+struct nfc_dev *nfc_get_device(unsigned idx);
+
+static inline void nfc_put_device(struct nfc_dev *dev)
+{
+        put_device(&dev->dev);
+}
+
+static inline void nfc_device_iter_init(struct class_dev_iter *iter)
+{
+        class_dev_iter_init(iter, &nfc_class, NULL, NULL);
+}
+
+static inline struct nfc_dev *nfc_device_iter_next(struct class_dev_iter *iter)
+{
+        struct device *d = class_dev_iter_next(iter);
+        if (!d)
+                return NULL;
+
+        return to_nfc_dev(d);
+}
+
+static inline void nfc_device_iter_exit(struct class_dev_iter *iter)
+{
+        class_dev_iter_exit(iter);
+}
+
+int nfc_start_poll(struct nfc_dev *dev, u32 protocols);
+
+int nfc_stop_poll(struct nfc_dev *dev);
+
+int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol);
+
+int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx);
+
+int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx,
+                                        struct sk_buff *skb,
+                                        data_exchange_cb_t cb,
+                                        void *cb_context);
+
+#endif /* __LOCAL_NFC_H */