/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 *  Bluetooth support for Realtek devices
 *
 *  Copyright (C) 2015 Endless Mobile, Inc.
 */

#define RTL_FRAG_LEN 252

#define rtl_dev_err(dev, fmt, ...) bt_dev_err(dev, "RTL: " fmt, ##__VA_ARGS__)
#define rtl_dev_warn(dev, fmt, ...) bt_dev_warn(dev, "RTL: " fmt, ##__VA_ARGS__)
#define rtl_dev_info(dev, fmt, ...) bt_dev_info(dev, "RTL: " fmt, ##__VA_ARGS__)
#define rtl_dev_dbg(dev, fmt, ...) bt_dev_dbg(dev, "RTL: " fmt, ##__VA_ARGS__)

struct btrtl_device_info;

struct rtl_chip_type_evt {
        __u8 status;
        __u8 type;
} __packed;

struct rtl_download_cmd {
        __u8 index;
        __u8 data[RTL_FRAG_LEN];
} __packed;

struct rtl_download_response {
        __u8 status;
        __u8 index;
} __packed;

struct rtl_rom_version_evt {
        __u8 status;
        __u8 version;
} __packed;

struct rtl_epatch_header {
        __u8 signature[8];
        __le32 fw_version;
        __le16 num_patches;
} __packed;

struct rtl_vendor_config_entry {
        __le16 offset;
        __u8 len;
        __u8 data[];
} __packed;

struct rtl_vendor_config {
        __le32 signature;
        __le16 total_len;
        __u8 entry[];
} __packed;

struct rtl_epatch_header_v2 {
        __u8   signature[8];
        __u8   fw_version[8];
        __le32 num_sections;
} __packed;

struct rtl_section {
        __le32 opcode;
        __le32 len;
        u8     data[];
} __packed;

struct rtl_section_hdr {
        __le16 num;
        __le16 reserved;
} __packed;

struct rtl_common_subsec {
        __u8   eco;
        __u8   prio;
        __u8   cb[2];
        __le32 len;
        __u8   data[];
};

struct rtl_sec_hdr {
        __u8   eco;
        __u8   prio;
        __u8   key_id;
        __u8   reserved;
        __le32 len;
        __u8   data[];
} __packed;

struct rtl_subsection {
        struct list_head list;
        u32 opcode;
        u32 len;
        u8 prio;
        u8 *data;
};

struct rtl_iovec {
        u8  *data;
        u32 len;
};

struct rtl_vendor_cmd {
        __u8 param[5];
} __packed;

enum {
        REALTEK_ALT6_CONTINUOUS_TX_CHIP,

        __REALTEK_NUM_FLAGS,
};

struct rtl_dump_info {
        const char *driver_name;
        char *controller;
        u32  fw_version;
};

struct btrealtek_data {
        DECLARE_BITMAP(flags, __REALTEK_NUM_FLAGS);

        struct rtl_dump_info rtl_dump;
};

#define btrealtek_set_flag(hdev, nr)                                    \
        do {                                                            \
                struct btrealtek_data *realtek = hci_get_priv((hdev));  \
                set_bit((nr), realtek->flags);                          \
        } while (0)

#define btrealtek_get_flag(hdev)                                        \
        (((struct btrealtek_data *)hci_get_priv(hdev))->flags)

#define btrealtek_test_flag(hdev, nr)   test_bit((nr), btrealtek_get_flag(hdev))

#if IS_ENABLED(CONFIG_BT_RTL)

struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
                                           const char *postfix);
void btrtl_free(struct btrtl_device_info *btrtl_dev);
int btrtl_download_firmware(struct hci_dev *hdev,
                            struct btrtl_device_info *btrtl_dev);
void btrtl_set_quirks(struct hci_dev *hdev,
                      struct btrtl_device_info *btrtl_dev);
int btrtl_setup_realtek(struct hci_dev *hdev);
int btrtl_shutdown_realtek(struct hci_dev *hdev);
int btrtl_get_uart_settings(struct hci_dev *hdev,
                            struct btrtl_device_info *btrtl_dev,
                            unsigned int *controller_baudrate,
                            u32 *device_baudrate, bool *flow_control);
void btrtl_set_driver_name(struct hci_dev *hdev, const char *driver_name);

#else

static inline struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
                                                         const char *postfix)
{
        return ERR_PTR(-EOPNOTSUPP);
}

static inline void btrtl_free(struct btrtl_device_info *btrtl_dev)
{
}

static inline int btrtl_download_firmware(struct hci_dev *hdev,
                                          struct btrtl_device_info *btrtl_dev)
{
        return -EOPNOTSUPP;
}

static inline void btrtl_set_quirks(struct hci_dev *hdev,
                                    struct btrtl_device_info *btrtl_dev)
{
}

static inline int btrtl_setup_realtek(struct hci_dev *hdev)
{
        return -EOPNOTSUPP;
}

static inline int btrtl_shutdown_realtek(struct hci_dev *hdev)
{
        return -EOPNOTSUPP;
}

static inline int btrtl_get_uart_settings(struct hci_dev *hdev,
                                          struct btrtl_device_info *btrtl_dev,
                                          unsigned int *controller_baudrate,
                                          u32 *device_baudrate,
                                          bool *flow_control)
{
        return -ENOENT;
}

static inline void btrtl_set_driver_name(struct hci_dev *hdev, const char *driver_name)
{
}

#endif