net/nfc/nfc.h

   1 /*
   2  * Copyright (C) 2011 Instituto Nokia de Tecnologia
   3  *
   4  * Authors:
   5  *    Lauro Ramos Venancio <lauro.venancio@openbossa.org>
   6  *    Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the
  20  * Free Software Foundation, Inc.,
  21  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  22  */
  23
  24 #ifndef __LOCAL_NFC_H
  25 #define __LOCAL_NFC_H
  26
  27 #include <net/nfc.h>
  28
  29 __attribute__((format (printf, 2, 3)))
  30 int nfc_printk(const char *level, const char *fmt, ...);
  31
  32 #define nfc_info(fmt, arg...) nfc_printk(KERN_INFO, fmt, ##arg)
  33 #define nfc_err(fmt, arg...) nfc_printk(KERN_ERR, fmt, ##arg)
  34 #define nfc_dbg(fmt, arg...) pr_debug(fmt "\n", ##arg)
  35
  36 extern int nfc_devlist_generation;
  37 extern struct mutex nfc_devlist_mutex;
  38
  39 struct nfc_dev *nfc_get_device(unsigned idx);
  40
  41 static inline void nfc_put_device(struct nfc_dev *dev)
  42 {
  43         put_device(&dev->dev);
  44 }
  45
  46 static inline void nfc_device_iter_init(struct class_dev_iter *iter)
  47 {
  48         class_dev_iter_init(iter, &nfc_class, NULL, NULL);
  49 }
  50
  51 static inline struct nfc_dev *nfc_device_iter_next(struct class_dev_iter *iter)
  52 {
  53         struct device *d = class_dev_iter_next(iter);
  54         if (!d)
  55                 return NULL;
  56
  57         return to_nfc_dev(d);
  58 }
  59
  60 static inline void nfc_device_iter_exit(struct class_dev_iter *iter)
  61 {
  62         class_dev_iter_exit(iter);
  63 }
  64
  65 int nfc_start_poll(struct nfc_dev *dev, u32 protocols);
  66
  67 int nfc_stop_poll(struct nfc_dev *dev);
  68
  69 int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol);
  70
  71 int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx);
  72
  73 int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx,
  74                                         struct sk_buff *skb,
  75                                         data_exchange_cb_t cb,
  76                                         void *cb_context);
  77
  78 #endif /* __LOCAL_NFC_H */