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[];
42 } __packed;
43
44 struct rtl_vendor_config {
45 __le32 signature;
46 __le16 total_len;
47 struct rtl_vendor_config_entry entry[];
48 } __packed;
49
50 enum {
51 REALTEK_ALT6_CONTINUOUS_TX_CHIP,
52
53 __REALTEK_NUM_FLAGS,
54 };
55
56 struct btrealtek_data {
57 DECLARE_BITMAP(flags, __REALTEK_NUM_FLAGS);
58 };
59
60 #define btrealtek_set_flag(hdev, nr) \
61 do { \
62 struct btrealtek_data *realtek = hci_get_priv((hdev)); \
63 set_bit((nr), realtek->flags); \
64 } while (0)
65
66 #define btrealtek_get_flag(hdev) \
67 (((struct btrealtek_data *)hci_get_priv(hdev))->flags)
68
69 #define btrealtek_test_flag(hdev, nr) test_bit((nr), btrealtek_get_flag(hdev))
70
71 #if IS_ENABLED(CONFIG_BT_RTL)
72
73 struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
74 const char *postfix);
75 void btrtl_free(struct btrtl_device_info *btrtl_dev);
76 int btrtl_download_firmware(struct hci_dev *hdev,
77 struct btrtl_device_info *btrtl_dev);
78 void btrtl_set_quirks(struct hci_dev *hdev,
79 struct btrtl_device_info *btrtl_dev);
80 int btrtl_setup_realtek(struct hci_dev *hdev);
81 int btrtl_shutdown_realtek(struct hci_dev *hdev);
82 int btrtl_get_uart_settings(struct hci_dev *hdev,
83 struct btrtl_device_info *btrtl_dev,
84 unsigned int *controller_baudrate,
85 u32 *device_baudrate, bool *flow_control);
86
87 #else
88
btrtl_initialize(struct hci_dev * hdev,const char * postfix)89 static inline struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
90 const char *postfix)
91 {
92 return ERR_PTR(-EOPNOTSUPP);
93 }
94
btrtl_free(struct btrtl_device_info * btrtl_dev)95 static inline void btrtl_free(struct btrtl_device_info *btrtl_dev)
96 {
97 }
98
btrtl_download_firmware(struct hci_dev * hdev,struct btrtl_device_info * btrtl_dev)99 static inline int btrtl_download_firmware(struct hci_dev *hdev,
100 struct btrtl_device_info *btrtl_dev)
101 {
102 return -EOPNOTSUPP;
103 }
104
btrtl_set_quirks(struct hci_dev * hdev,struct btrtl_device_info * btrtl_dev)105 static inline void btrtl_set_quirks(struct hci_dev *hdev,
106 struct btrtl_device_info *btrtl_dev)
107 {
108 }
109
btrtl_setup_realtek(struct hci_dev * hdev)110 static inline int btrtl_setup_realtek(struct hci_dev *hdev)
111 {
112 return -EOPNOTSUPP;
113 }
114
btrtl_shutdown_realtek(struct hci_dev * hdev)115 static inline int btrtl_shutdown_realtek(struct hci_dev *hdev)
116 {
117 return -EOPNOTSUPP;
118 }
119
btrtl_get_uart_settings(struct hci_dev * hdev,struct btrtl_device_info * btrtl_dev,unsigned int * controller_baudrate,u32 * device_baudrate,bool * flow_control)120 static inline int btrtl_get_uart_settings(struct hci_dev *hdev,
121 struct btrtl_device_info *btrtl_dev,
122 unsigned int *controller_baudrate,
123 u32 *device_baudrate,
124 bool *flow_control)
125 {
126 return -ENOENT;
127 }
128
129 #endif
130