NFC: trf7970a: add device tree option for 27MHz clock
[linux-2.6-block.git] / drivers / nfc / s3fwrn5 / s3fwrn5.h
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1/*
2 * NCI based driver for Samsung S3FWRN5 NFC chip
3 *
4 * Copyright (C) 2015 Samsung Electrnoics
5 * Robert Baldyga <r.baldyga@samsung.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms and conditions of the GNU General Public License,
9 * version 2 or later, as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
18 */
19
20#ifndef __LOCAL_S3FWRN5_H_
21#define __LOCAL_S3FWRN5_H_
22
23#include <linux/nfc.h>
24
25#include <net/nfc/nci_core.h>
26
27#include "firmware.h"
28
29enum s3fwrn5_mode {
30 S3FWRN5_MODE_COLD,
31 S3FWRN5_MODE_NCI,
32 S3FWRN5_MODE_FW,
33};
34
35struct s3fwrn5_phy_ops {
36 void (*set_wake)(void *id, bool sleep);
37 void (*set_mode)(void *id, enum s3fwrn5_mode);
38 enum s3fwrn5_mode (*get_mode)(void *id);
39 int (*write)(void *id, struct sk_buff *skb);
40};
41
42struct s3fwrn5_info {
43 struct nci_dev *ndev;
44 void *phy_id;
45 struct device *pdev;
46
c6b5df0d 47 const struct s3fwrn5_phy_ops *phy_ops;
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48 unsigned int max_payload;
49
50 struct s3fwrn5_fw_info fw_info;
51
52 struct mutex mutex;
53};
54
55static inline int s3fwrn5_set_mode(struct s3fwrn5_info *info,
56 enum s3fwrn5_mode mode)
57{
58 if (!info->phy_ops->set_mode)
59 return -ENOTSUPP;
60
61 info->phy_ops->set_mode(info->phy_id, mode);
62
63 return 0;
64}
65
66static inline enum s3fwrn5_mode s3fwrn5_get_mode(struct s3fwrn5_info *info)
67{
68 if (!info->phy_ops->get_mode)
69 return -ENOTSUPP;
70
71 return info->phy_ops->get_mode(info->phy_id);
72}
73
74static inline int s3fwrn5_set_wake(struct s3fwrn5_info *info, bool wake)
75{
76 if (!info->phy_ops->set_wake)
77 return -ENOTSUPP;
78
79 info->phy_ops->set_wake(info->phy_id, wake);
80
81 return 0;
82}
83
84static inline int s3fwrn5_write(struct s3fwrn5_info *info, struct sk_buff *skb)
85{
86 if (!info->phy_ops->write)
87 return -ENOTSUPP;
88
89 return info->phy_ops->write(info->phy_id, skb);
90}
91
92int s3fwrn5_probe(struct nci_dev **ndev, void *phy_id, struct device *pdev,
c6b5df0d 93 const struct s3fwrn5_phy_ops *phy_ops, unsigned int max_payload);
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94void s3fwrn5_remove(struct nci_dev *ndev);
95
96int s3fwrn5_recv_frame(struct nci_dev *ndev, struct sk_buff *skb,
97 enum s3fwrn5_mode mode);
98
99#endif /* __LOCAL_S3FWRN5_H_ */