nfc/s3fwrn5/s3fwrn5.h

0001 /* SPDX-License-Identifier: GPL-2.0-or-later */
0002 /*
0003  * NCI based driver for Samsung S3FWRN5 NFC chip
0004  *
0005  * Copyright (C) 2015 Samsung Electrnoics
0006  * Robert Baldyga <r.baldyga@samsung.com>
0007  */
0008
0009 #ifndef __LOCAL_S3FWRN5_H_
0010 #define __LOCAL_S3FWRN5_H_
0011
0012 #include <linux/nfc.h>
0013
0014 #include <net/nfc/nci_core.h>
0015
0016 #include "firmware.h"
0017
0018 enum s3fwrn5_mode {
0019     S3FWRN5_MODE_COLD,
0020     S3FWRN5_MODE_NCI,
0021     S3FWRN5_MODE_FW,
0022 };
0023
0024 struct s3fwrn5_phy_ops {
0025     void (*set_wake)(void *id, bool sleep);
0026     void (*set_mode)(void *id, enum s3fwrn5_mode);
0027     enum s3fwrn5_mode (*get_mode)(void *id);
0028     int (*write)(void *id, struct sk_buff *skb);
0029 };
0030
0031 struct s3fwrn5_info {
0032     struct nci_dev *ndev;
0033     void *phy_id;
0034     struct device *pdev;
0035
0036     const struct s3fwrn5_phy_ops *phy_ops;
0037
0038     struct s3fwrn5_fw_info fw_info;
0039
0040     struct mutex mutex;
0041 };
0042
0043 static inline int s3fwrn5_set_mode(struct s3fwrn5_info *info,
0044     enum s3fwrn5_mode mode)
0045 {
0046     if (!info->phy_ops->set_mode)
0047         return -EOPNOTSUPP;
0048
0049     info->phy_ops->set_mode(info->phy_id, mode);
0050
0051     return 0;
0052 }
0053
0054 static inline enum s3fwrn5_mode s3fwrn5_get_mode(struct s3fwrn5_info *info)
0055 {
0056     if (!info->phy_ops->get_mode)
0057         return -EOPNOTSUPP;
0058
0059     return info->phy_ops->get_mode(info->phy_id);
0060 }
0061
0062 static inline int s3fwrn5_set_wake(struct s3fwrn5_info *info, bool wake)
0063 {
0064     if (!info->phy_ops->set_wake)
0065         return -EOPNOTSUPP;
0066
0067     info->phy_ops->set_wake(info->phy_id, wake);
0068
0069     return 0;
0070 }
0071
0072 static inline int s3fwrn5_write(struct s3fwrn5_info *info, struct sk_buff *skb)
0073 {
0074     if (!info->phy_ops->write)
0075         return -EOPNOTSUPP;
0076
0077     return info->phy_ops->write(info->phy_id, skb);
0078 }
0079
0080 int s3fwrn5_probe(struct nci_dev **ndev, void *phy_id, struct device *pdev,
0081     const struct s3fwrn5_phy_ops *phy_ops);
0082 void s3fwrn5_remove(struct nci_dev *ndev);
0083
0084 int s3fwrn5_recv_frame(struct nci_dev *ndev, struct sk_buff *skb,
0085     enum s3fwrn5_mode mode);
0086
0087 #endif /* __LOCAL_S3FWRN5_H_ */