drivers/bluetooth/btrtl.h

   1 /*
   2  *  Bluetooth support for Realtek devices
   3  *
   4  *  Copyright (C) 2015 Endless Mobile, Inc.
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  */
  17
  18 #define RTL_FRAG_LEN 252
  19
  20 #define rtl_dev_err(dev, fmt, ...) bt_dev_err(dev, "RTL: " fmt, ##__VA_ARGS__)
  21 #define rtl_dev_warn(dev, fmt, ...) bt_dev_warn(dev, "RTL: " fmt, ##__VA_ARGS__)
  22 #define rtl_dev_info(dev, fmt, ...) bt_dev_info(dev, "RTL: " fmt, ##__VA_ARGS__)
  23 #define rtl_dev_dbg(dev, fmt, ...) bt_dev_dbg(dev, "RTL: " fmt, ##__VA_ARGS__)
  24
  25 struct btrtl_device_info;
  26
  27 struct rtl_download_cmd {
  28         __u8 index;
  29         __u8 data[RTL_FRAG_LEN];
  30 } __packed;
  31
  32 struct rtl_download_response {
  33         __u8 status;
  34         __u8 index;
  35 } __packed;
  36
  37 struct rtl_rom_version_evt {
  38         __u8 status;
  39         __u8 version;
  40 } __packed;
  41
  42 struct rtl_epatch_header {
  43         __u8 signature[8];
  44         __le32 fw_version;
  45         __le16 num_patches;
  46 } __packed;
  47
  48 struct rtl_vendor_config_entry {
  49         __le16 offset;
  50         __u8 len;
  51         __u8 data[0];
  52 } __packed;
  53
  54 struct rtl_vendor_config {
  55         __le32 signature;
  56         __le16 total_len;
  57         struct rtl_vendor_config_entry entry[0];
  58 } __packed;
  59
  60 #if IS_ENABLED(CONFIG_BT_RTL)
  61
  62 struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
  63                                            const char *postfix);
  64 void btrtl_free(struct btrtl_device_info *btrtl_dev);
  65 int btrtl_download_firmware(struct hci_dev *hdev,
  66                             struct btrtl_device_info *btrtl_dev);
  67 int btrtl_setup_realtek(struct hci_dev *hdev);
  68 int btrtl_shutdown_realtek(struct hci_dev *hdev);
  69 int btrtl_get_uart_settings(struct hci_dev *hdev,
  70                             struct btrtl_device_info *btrtl_dev,
  71                             unsigned int *controller_baudrate,
  72                             u32 *device_baudrate, bool *flow_control);
  73
  74 #else
  75
  76 static inline struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
  77                                                          const char *postfix)
  78 {
  79         return ERR_PTR(-EOPNOTSUPP);
  80 }
  81
  82 static inline void btrtl_free(struct btrtl_device_info *btrtl_dev)
  83 {
  84 }
  85
  86 static inline int btrtl_download_firmware(struct hci_dev *hdev,
  87                                           struct btrtl_device_info *btrtl_dev)
  88 {
  89         return -EOPNOTSUPP;
  90 }
  91
  92 static inline int btrtl_setup_realtek(struct hci_dev *hdev)
  93 {
  94         return -EOPNOTSUPP;
  95 }
  96
  97 static inline int btrtl_shutdown_realtek(struct hci_dev *hdev)
  98 {
  99         return -EOPNOTSUPP;
 100 }
 101
 102 static inline int btrtl_get_uart_settings(struct hci_dev *hdev,
 103                                           struct btrtl_device_info *btrtl_dev,
 104                                           unsigned int *controller_baudrate,
 105                                           u32 *device_baudrate,
 106                                           bool *flow_control)
 107 {
 108         return -ENOENT;
 109 }
 110
 111 #endif