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 
38 	struct s3fwrn5_fw_info fw_info;
39 
40 	struct mutex mutex;
41 };
42 
s3fwrn5_set_mode(struct s3fwrn5_info * info,enum s3fwrn5_mode mode)43 static inline int s3fwrn5_set_mode(struct s3fwrn5_info *info,
44 	enum s3fwrn5_mode mode)
45 {
46 	if (!info->phy_ops->set_mode)
47 		return -EOPNOTSUPP;
48 
49 	info->phy_ops->set_mode(info->phy_id, mode);
50 
51 	return 0;
52 }
53 
s3fwrn5_get_mode(struct s3fwrn5_info * info)54 static inline enum s3fwrn5_mode s3fwrn5_get_mode(struct s3fwrn5_info *info)
55 {
56 	if (!info->phy_ops->get_mode)
57 		return -EOPNOTSUPP;
58 
59 	return info->phy_ops->get_mode(info->phy_id);
60 }
61 
s3fwrn5_set_wake(struct s3fwrn5_info * info,bool wake)62 static inline int s3fwrn5_set_wake(struct s3fwrn5_info *info, bool wake)
63 {
64 	if (!info->phy_ops->set_wake)
65 		return -EOPNOTSUPP;
66 
67 	info->phy_ops->set_wake(info->phy_id, wake);
68 
69 	return 0;
70 }
71 
s3fwrn5_write(struct s3fwrn5_info * info,struct sk_buff * skb)72 static inline int s3fwrn5_write(struct s3fwrn5_info *info, struct sk_buff *skb)
73 {
74 	if (!info->phy_ops->write)
75 		return -EOPNOTSUPP;
76 
77 	return info->phy_ops->write(info->phy_id, skb);
78 }
79 
80 int s3fwrn5_probe(struct nci_dev **ndev, void *phy_id, struct device *pdev,
81 	const struct s3fwrn5_phy_ops *phy_ops);
82 void s3fwrn5_remove(struct nci_dev *ndev);
83 
84 int s3fwrn5_recv_frame(struct nci_dev *ndev, struct sk_buff *skb,
85 	enum s3fwrn5_mode mode);
86 
87 #endif /* __LOCAL_S3FWRN5_H_ */
88