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_shutdown_realtek(struct hci_dev *hdev);
59 int btrtl_get_uart_settings(struct hci_dev *hdev,
60 struct btrtl_device_info *btrtl_dev,
61 unsigned int *controller_baudrate,
62 u32 *device_baudrate, bool *flow_control);
63
64 #else
65
btrtl_initialize(struct hci_dev * hdev,const char * postfix)66 static inline struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
67 const char *postfix)
68 {
69 return ERR_PTR(-EOPNOTSUPP);
70 }
71
btrtl_free(struct btrtl_device_info * btrtl_dev)72 static inline void btrtl_free(struct btrtl_device_info *btrtl_dev)
73 {
74 }
75
btrtl_download_firmware(struct hci_dev * hdev,struct btrtl_device_info * btrtl_dev)76 static inline int btrtl_download_firmware(struct hci_dev *hdev,
77 struct btrtl_device_info *btrtl_dev)
78 {
79 return -EOPNOTSUPP;
80 }
81
btrtl_setup_realtek(struct hci_dev * hdev)82 static inline int btrtl_setup_realtek(struct hci_dev *hdev)
83 {
84 return -EOPNOTSUPP;
85 }
86
btrtl_shutdown_realtek(struct hci_dev * hdev)87 static inline int btrtl_shutdown_realtek(struct hci_dev *hdev)
88 {
89 return -EOPNOTSUPP;
90 }
91
btrtl_get_uart_settings(struct hci_dev * hdev,struct btrtl_device_info * btrtl_dev,unsigned int * controller_baudrate,u32 * device_baudrate,bool * flow_control)92 static inline int btrtl_get_uart_settings(struct hci_dev *hdev,
93 struct btrtl_device_info *btrtl_dev,
94 unsigned int *controller_baudrate,
95 u32 *device_baudrate,
96 bool *flow_control)
97 {
98 return -ENOENT;
99 }
100
101 #endif
102