drivers/nfc/s3fwrn5/s3fwrn5.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * NCI based driver for Samsung S3FWRN5 NFC chip
   4  *
   5  * Copyright (C) 2015 Samsung Electrnoics
   6  * Robert Baldyga <r.baldyga@samsung.com>
   7  */
   8
   9 #ifndef __LOCAL_S3FWRN5_H_
  10 #define __LOCAL_S3FWRN5_H_
  11
  12 #include <linux/nfc.h>
  13
  14 #include <net/nfc/nci_core.h>
  15
  16 #include "firmware.h"
  17
  18 enum s3fwrn5_mode {
  19         S3FWRN5_MODE_COLD,
  20         S3FWRN5_MODE_NCI,
  21         S3FWRN5_MODE_FW,
  22 };
  23
  24 struct s3fwrn5_phy_ops {
  25         void (*set_wake)(void *id, bool sleep);
  26         void (*set_mode)(void *id, enum s3fwrn5_mode);
  27         enum s3fwrn5_mode (*get_mode)(void *id);
  28         int (*write)(void *id, struct sk_buff *skb);
  29 };
  30
  31 struct s3fwrn5_info {
  32         struct nci_dev *ndev;
  33         void *phy_id;
  34         struct device *pdev;
  35
  36         const struct s3fwrn5_phy_ops *phy_ops;
  37         unsigned int max_payload;
  38
  39         struct s3fwrn5_fw_info fw_info;
  40
  41         struct mutex mutex;
  42 };
  43
  44 static inline int s3fwrn5_set_mode(struct s3fwrn5_info *info,
  45         enum s3fwrn5_mode mode)
  46 {
  47         if (!info->phy_ops->set_mode)
  48                 return -ENOTSUPP;
  49
  50         info->phy_ops->set_mode(info->phy_id, mode);
  51
  52         return 0;
  53 }
  54
  55 static inline enum s3fwrn5_mode s3fwrn5_get_mode(struct s3fwrn5_info *info)
  56 {
  57         if (!info->phy_ops->get_mode)
  58                 return -ENOTSUPP;
  59
  60         return info->phy_ops->get_mode(info->phy_id);
  61 }
  62
  63 static inline int s3fwrn5_set_wake(struct s3fwrn5_info *info, bool wake)
  64 {
  65         if (!info->phy_ops->set_wake)
  66                 return -ENOTSUPP;
  67
  68         info->phy_ops->set_wake(info->phy_id, wake);
  69
  70         return 0;
  71 }
  72
  73 static inline int s3fwrn5_write(struct s3fwrn5_info *info, struct sk_buff *skb)
  74 {
  75         if (!info->phy_ops->write)
  76                 return -ENOTSUPP;
  77
  78         return info->phy_ops->write(info->phy_id, skb);
  79 }
  80
  81 int s3fwrn5_probe(struct nci_dev **ndev, void *phy_id, struct device *pdev,
  82         const struct s3fwrn5_phy_ops *phy_ops, unsigned int max_payload);
  83 void s3fwrn5_remove(struct nci_dev *ndev);
  84
  85 int s3fwrn5_recv_frame(struct nci_dev *ndev, struct sk_buff *skb,
  86         enum s3fwrn5_mode mode);
  87
  88 #endif /* __LOCAL_S3FWRN5_H_ */