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
s3fwrn5_set_mode(struct s3fwrn5_info * info,enum s3fwrn5_mode mode)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
s3fwrn5_get_mode(struct s3fwrn5_info * info)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
s3fwrn5_set_wake(struct s3fwrn5_info * info,bool wake)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
s3fwrn5_write(struct s3fwrn5_info * info,struct sk_buff * skb)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_ */
89
