1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (C) 2014  NXP Semiconductors  All rights reserved.
4  *
5  * Authors: Clément Perrochaud <clement.perrochaud@nxp.com>
6  *
7  * Derived from PN544 device driver:
8  * Copyright (C) 2012  Intel Corporation. All rights reserved.
9 */
10 
11 #ifndef __LOCAL_NXP_NCI_H_
12 #define __LOCAL_NXP_NCI_H_
13 
14 #include <linux/completion.h>
15 #include <linux/firmware.h>
16 #include <linux/nfc.h>
17 
18 #include <net/nfc/nci_core.h>
19 
20 #define NXP_NCI_FW_HDR_LEN	2
21 #define NXP_NCI_FW_CRC_LEN	2
22 
23 #define NXP_NCI_FW_FRAME_LEN_MASK	0x03FF
24 
25 enum nxp_nci_mode {
26 	NXP_NCI_MODE_COLD,
27 	NXP_NCI_MODE_NCI,
28 	NXP_NCI_MODE_FW
29 };
30 
31 struct nxp_nci_phy_ops {
32 	int (*set_mode)(void *id, enum nxp_nci_mode mode);
33 	int (*write)(void *id, struct sk_buff *skb);
34 };
35 
36 struct nxp_nci_fw_info {
37 	char name[NFC_FIRMWARE_NAME_MAXSIZE + 1];
38 	const struct firmware *fw;
39 
40 	size_t size;
41 	size_t written;
42 
43 	const u8 *data;
44 	size_t frame_size;
45 
46 	struct work_struct work;
47 	struct completion cmd_completion;
48 
49 	int cmd_result;
50 };
51 
52 struct nxp_nci_info {
53 	struct nci_dev *ndev;
54 	void *phy_id;
55 	struct device *pdev;
56 
57 	enum nxp_nci_mode mode;
58 
59 	const struct nxp_nci_phy_ops *phy_ops;
60 	unsigned int max_payload;
61 
62 	struct mutex info_lock;
63 
64 	struct nxp_nci_fw_info fw_info;
65 };
66 
67 int nxp_nci_fw_download(struct nci_dev *ndev, const char *firmware_name);
68 void nxp_nci_fw_work(struct work_struct *work);
69 void nxp_nci_fw_recv_frame(struct nci_dev *ndev, struct sk_buff *skb);
70 void nxp_nci_fw_work_complete(struct nxp_nci_info *info, int result);
71 
72 int nxp_nci_probe(void *phy_id, struct device *pdev,
73 		  const struct nxp_nci_phy_ops *phy_ops,
74 		  unsigned int max_payload,
75 		  struct nci_dev **ndev);
76 void nxp_nci_remove(struct nci_dev *ndev);
77 
78 #endif /* __LOCAL_NXP_NCI_H_ */
79