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_FIRMWARE_H_
10#define __LOCAL_S3FWRN5_FIRMWARE_H_
11
12/* FW Message Types */
13#define S3FWRN5_FW_MSG_CMD 0x00
14#define S3FWRN5_FW_MSG_RSP 0x01
15#define S3FWRN5_FW_MSG_DATA 0x02
16
17/* FW Return Codes */
18#define S3FWRN5_FW_RET_SUCCESS 0x00
19#define S3FWRN5_FW_RET_MESSAGE_TYPE_INVALID 0x01
20#define S3FWRN5_FW_RET_COMMAND_INVALID 0x02
21#define S3FWRN5_FW_RET_PAGE_DATA_OVERFLOW 0x03
22#define S3FWRN5_FW_RET_SECT_DATA_OVERFLOW 0x04
23#define S3FWRN5_FW_RET_AUTHENTICATION_FAIL 0x05
24#define S3FWRN5_FW_RET_FLASH_OPERATION_FAIL 0x06
25#define S3FWRN5_FW_RET_ADDRESS_OUT_OF_RANGE 0x07
26#define S3FWRN5_FW_RET_PARAMETER_INVALID 0x08
27
28/* ---- FW Packet structures ---- */
29#define S3FWRN5_FW_HDR_SIZE 4
30
31struct s3fwrn5_fw_header {
32 __u8 type;
33 __u8 code;
34 __u16 len;
35};
36
37#define S3FWRN5_FW_CMD_RESET 0x00
38
39#define S3FWRN5_FW_CMD_GET_BOOTINFO 0x01
40
41struct s3fwrn5_fw_cmd_get_bootinfo_rsp {
42 __u8 hw_version[4];
43 __u16 sector_size;
44 __u16 page_size;
45 __u16 frame_max_size;
46 __u16 hw_buffer_size;
47};
48
49#define S3FWRN5_FW_CMD_ENTER_UPDATE_MODE 0x02
50
51struct s3fwrn5_fw_cmd_enter_updatemode {
52 __u16 hashcode_size;
53 __u16 signature_size;
54};
55
56#define S3FWRN5_FW_CMD_UPDATE_SECTOR 0x04
57
58struct s3fwrn5_fw_cmd_update_sector {
59 __u32 base_address;
60};
61
62#define S3FWRN5_FW_CMD_COMPLETE_UPDATE_MODE 0x05
63
64struct s3fwrn5_fw_image {
65 const struct firmware *fw;
66
67 char date[13];
68 u32 version;
69 const void *sig;
70 u32 sig_size;
71 const void *image;
72 u32 image_sectors;
73 const void *custom_sig;
74 u32 custom_sig_size;
75};
76
77struct s3fwrn5_fw_info {
78 struct nci_dev *ndev;
79 struct s3fwrn5_fw_image fw;
80 char fw_name[NFC_FIRMWARE_NAME_MAXSIZE + 1];
81
82 const void *sig;
83 u32 sig_size;
84 u32 sector_size;
85 u32 base_addr;
86
87 struct completion completion;
88 struct sk_buff *rsp;
89 char parity;
90};
91
92int s3fwrn5_fw_request_firmware(struct s3fwrn5_fw_info *fw_info);
93void s3fwrn5_fw_init(struct s3fwrn5_fw_info *fw_info, const char *fw_name);
94int s3fwrn5_fw_setup(struct s3fwrn5_fw_info *fw_info);
95bool s3fwrn5_fw_check_version(const struct s3fwrn5_fw_info *fw_info, u32 version);
96int s3fwrn5_fw_download(struct s3fwrn5_fw_info *fw_info);
97void s3fwrn5_fw_cleanup(struct s3fwrn5_fw_info *fw_info);
98
99int s3fwrn5_fw_recv_frame(struct nci_dev *ndev, struct sk_buff *skb);
100
101#endif /* __LOCAL_S3FWRN5_FIRMWARE_H_ */
102

source code of linux/drivers/nfc/s3fwrn5/firmware.h