treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
[sfrench/cifs-2.6.git] / drivers / bluetooth / btrtl.h
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  *  Bluetooth support for Realtek devices
4  *
5  *  Copyright (C) 2015 Endless Mobile, Inc.
6  */
7
8 #define RTL_FRAG_LEN 252
9
10 #define rtl_dev_err(dev, fmt, ...) bt_dev_err(dev, "RTL: " fmt, ##__VA_ARGS__)
11 #define rtl_dev_warn(dev, fmt, ...) bt_dev_warn(dev, "RTL: " fmt, ##__VA_ARGS__)
12 #define rtl_dev_info(dev, fmt, ...) bt_dev_info(dev, "RTL: " fmt, ##__VA_ARGS__)
13 #define rtl_dev_dbg(dev, fmt, ...) bt_dev_dbg(dev, "RTL: " fmt, ##__VA_ARGS__)
14
15 struct btrtl_device_info;
16
17 struct rtl_download_cmd {
18         __u8 index;
19         __u8 data[RTL_FRAG_LEN];
20 } __packed;
21
22 struct rtl_download_response {
23         __u8 status;
24         __u8 index;
25 } __packed;
26
27 struct rtl_rom_version_evt {
28         __u8 status;
29         __u8 version;
30 } __packed;
31
32 struct rtl_epatch_header {
33         __u8 signature[8];
34         __le32 fw_version;
35         __le16 num_patches;
36 } __packed;
37
38 struct rtl_vendor_config_entry {
39         __le16 offset;
40         __u8 len;
41         __u8 data[0];
42 } __packed;
43
44 struct rtl_vendor_config {
45         __le32 signature;
46         __le16 total_len;
47         struct rtl_vendor_config_entry entry[0];
48 } __packed;
49
50 #if IS_ENABLED(CONFIG_BT_RTL)
51
52 struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
53                                            const char *postfix);
54 void btrtl_free(struct btrtl_device_info *btrtl_dev);
55 int btrtl_download_firmware(struct hci_dev *hdev,
56                             struct btrtl_device_info *btrtl_dev);
57 int btrtl_setup_realtek(struct hci_dev *hdev);
58 int btrtl_get_uart_settings(struct hci_dev *hdev,
59                             struct btrtl_device_info *btrtl_dev,
60                             unsigned int *controller_baudrate,
61                             u32 *device_baudrate, bool *flow_control);
62
63 #else
64
65 static inline struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
66                                                          const char *postfix)
67 {
68         return ERR_PTR(-EOPNOTSUPP);
69 }
70
71 static inline void btrtl_free(struct btrtl_device_info *btrtl_dev)
72 {
73 }
74
75 static inline int btrtl_download_firmware(struct hci_dev *hdev,
76                                           struct btrtl_device_info *btrtl_dev)
77 {
78         return -EOPNOTSUPP;
79 }
80
81 static inline int btrtl_setup_realtek(struct hci_dev *hdev)
82 {
83         return -EOPNOTSUPP;
84 }
85
86 static inline int btrtl_get_uart_settings(struct hci_dev *hdev,
87                                           struct btrtl_device_info *btrtl_dev,
88                                           unsigned int *controller_baudrate,
89                                           u32 *device_baudrate,
90                                           bool *flow_control)
91 {
92         return -ENOENT;
93 }
94
95 #endif