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_chip_type_evt {
18 __u8 status;
19 __u8 type;
20 } __packed;
21
22 struct rtl_download_cmd {
23 __u8 index;
24 __u8 data[RTL_FRAG_LEN];
25 } __packed;
26
27 struct rtl_download_response {
28 __u8 status;
29 __u8 index;
30 } __packed;
31
32 struct rtl_rom_version_evt {
33 __u8 status;
34 __u8 version;
35 } __packed;
36
37 struct rtl_epatch_header {
38 __u8 signature[8];
39 __le32 fw_version;
40 __le16 num_patches;
41 } __packed;
42
43 struct rtl_vendor_config_entry {
44 __le16 offset;
45 __u8 len;
46 __u8 data[];
47 } __packed;
48
49 struct rtl_vendor_config {
50 __le32 signature;
51 __le16 total_len;
52 __u8 entry[];
53 } __packed;
54
55 struct rtl_epatch_header_v2 {
56 __u8 signature[8];
57 __u8 fw_version[8];
58 __le32 num_sections;
59 } __packed;
60
61 struct rtl_section {
62 __le32 opcode;
63 __le32 len;
64 u8 data[];
65 } __packed;
66
67 struct rtl_section_hdr {
68 __le16 num;
69 __le16 reserved;
70 } __packed;
71
72 struct rtl_common_subsec {
73 __u8 eco;
74 __u8 prio;
75 __u8 cb[2];
76 __le32 len;
77 __u8 data[];
78 };
79
80 struct rtl_sec_hdr {
81 __u8 eco;
82 __u8 prio;
83 __u8 key_id;
84 __u8 reserved;
85 __le32 len;
86 __u8 data[];
87 } __packed;
88
89 struct rtl_subsection {
90 struct list_head list;
91 u32 opcode;
92 u32 len;
93 u8 prio;
94 u8 *data;
95 };
96
97 struct rtl_iovec {
98 u8 *data;
99 u32 len;
100 };
101
102 struct rtl_vendor_cmd {
103 __u8 param[5];
104 } __packed;
105
106 enum {
107 REALTEK_ALT6_CONTINUOUS_TX_CHIP,
108
109 __REALTEK_NUM_FLAGS,
110 };
111
112 struct rtl_dump_info {
113 const char *driver_name;
114 char *controller;
115 u32 fw_version;
116 };
117
118 struct btrealtek_data {
119 DECLARE_BITMAP(flags, __REALTEK_NUM_FLAGS);
120
121 struct rtl_dump_info rtl_dump;
122 };
123
124 #define btrealtek_set_flag(hdev, nr) \
125 do { \
126 struct btrealtek_data *realtek = hci_get_priv((hdev)); \
127 set_bit((nr), realtek->flags); \
128 } while (0)
129
130 #define btrealtek_get_flag(hdev) \
131 (((struct btrealtek_data *)hci_get_priv(hdev))->flags)
132
133 #define btrealtek_test_flag(hdev, nr) test_bit((nr), btrealtek_get_flag(hdev))
134
135 #if IS_ENABLED(CONFIG_BT_RTL)
136
137 struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
138 const char *postfix);
139 void btrtl_free(struct btrtl_device_info *btrtl_dev);
140 int btrtl_download_firmware(struct hci_dev *hdev,
141 struct btrtl_device_info *btrtl_dev);
142 void btrtl_set_quirks(struct hci_dev *hdev,
143 struct btrtl_device_info *btrtl_dev);
144 int btrtl_setup_realtek(struct hci_dev *hdev);
145 int btrtl_shutdown_realtek(struct hci_dev *hdev);
146 int btrtl_get_uart_settings(struct hci_dev *hdev,
147 struct btrtl_device_info *btrtl_dev,
148 unsigned int *controller_baudrate,
149 u32 *device_baudrate, bool *flow_control);
150 void btrtl_set_driver_name(struct hci_dev *hdev, const char *driver_name);
151
152 #else
153
btrtl_initialize(struct hci_dev * hdev,const char * postfix)154 static inline struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
155 const char *postfix)
156 {
157 return ERR_PTR(-EOPNOTSUPP);
158 }
159
btrtl_free(struct btrtl_device_info * btrtl_dev)160 static inline void btrtl_free(struct btrtl_device_info *btrtl_dev)
161 {
162 }
163
btrtl_download_firmware(struct hci_dev * hdev,struct btrtl_device_info * btrtl_dev)164 static inline int btrtl_download_firmware(struct hci_dev *hdev,
165 struct btrtl_device_info *btrtl_dev)
166 {
167 return -EOPNOTSUPP;
168 }
169
btrtl_set_quirks(struct hci_dev * hdev,struct btrtl_device_info * btrtl_dev)170 static inline void btrtl_set_quirks(struct hci_dev *hdev,
171 struct btrtl_device_info *btrtl_dev)
172 {
173 }
174
btrtl_setup_realtek(struct hci_dev * hdev)175 static inline int btrtl_setup_realtek(struct hci_dev *hdev)
176 {
177 return -EOPNOTSUPP;
178 }
179
btrtl_shutdown_realtek(struct hci_dev * hdev)180 static inline int btrtl_shutdown_realtek(struct hci_dev *hdev)
181 {
182 return -EOPNOTSUPP;
183 }
184
btrtl_get_uart_settings(struct hci_dev * hdev,struct btrtl_device_info * btrtl_dev,unsigned int * controller_baudrate,u32 * device_baudrate,bool * flow_control)185 static inline int btrtl_get_uart_settings(struct hci_dev *hdev,
186 struct btrtl_device_info *btrtl_dev,
187 unsigned int *controller_baudrate,
188 u32 *device_baudrate,
189 bool *flow_control)
190 {
191 return -ENOENT;
192 }
193
btrtl_set_driver_name(struct hci_dev * hdev,const char * driver_name)194 static inline void btrtl_set_driver_name(struct hci_dev *hdev, const char *driver_name)
195 {
196 }
197
198 #endif
199