/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
/* Copyright(c) 2025  Realtek Corporation
 */

#ifndef __RTW89_USB_H__
#define __RTW89_USB_H__

#include "txrx.h"

#define RTW89_USB_VENQT                 0x05
#define RTW89_USB_VENQT_READ            0xc0
#define RTW89_USB_VENQT_WRITE           0x40

#define RTW89_USB_RECVBUF_SZ            20480
#define RTW89_USB_RXCB_NUM              8
#define RTW89_USB_RX_SKB_NUM            16
#define RTW89_USB_MAX_RXQ_LEN           512
#define RTW89_USB_MOD512_PADDING        4

#define RTW89_MAX_ENDPOINT_NUM          9
#define RTW89_MAX_BULKOUT_NUM           7

struct rtw89_usb_info {
        u32 usb_host_request_2;
        u32 usb_wlan0_1;
        u32 hci_func_en;
        u32 usb3_mac_npi_config_intf_0;
        u32 usb_endpoint_0;
        u32 usb_endpoint_2;
        u8 bulkout_id[RTW89_DMA_CH_NUM];
};

struct rtw89_usb_rx_ctrl_block {
        struct rtw89_dev *rtwdev;
        struct urb *rx_urb;
        struct sk_buff *rx_skb;
};

struct rtw89_usb_tx_ctrl_block {
        struct rtw89_dev *rtwdev;
        u8 txch;
        struct sk_buff_head tx_ack_queue;
};

struct rtw89_usb {
        struct rtw89_dev *rtwdev;
        struct usb_device *udev;
        const struct rtw89_usb_info *info;

        __le32 *vendor_req_buf;

        atomic_t continual_io_error;

        u8 in_pipe;
        u8 out_pipe[RTW89_MAX_BULKOUT_NUM];

        struct workqueue_struct *rxwq;
        struct rtw89_usb_rx_ctrl_block rx_cb[RTW89_USB_RXCB_NUM];
        struct sk_buff_head rx_queue;
        struct sk_buff_head rx_free_queue;
        struct work_struct rx_work;
        struct work_struct rx_urb_work;
        struct usb_anchor tx_submitted;

        struct sk_buff_head tx_queue[RTW89_TXCH_NUM];
};

static inline struct rtw89_usb *rtw89_usb_priv(struct rtw89_dev *rtwdev)
{
        return (struct rtw89_usb *)rtwdev->priv;
}

int rtw89_usb_probe(struct usb_interface *intf,
                    const struct usb_device_id *id);
void rtw89_usb_disconnect(struct usb_interface *intf);

#endif