1/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
2/* Copyright(c) 2018-2019 Realtek Corporation
3 */
4
5#ifndef __RTW_USB_H_
6#define __RTW_USB_H_
7
8#define FW_8192C_START_ADDRESS 0x1000
9#define FW_8192C_END_ADDRESS 0x5fff
10
11#define RTW_USB_MAX_RXTX_COUNT 128
12#define RTW_USB_VENQT_MAX_BUF_SIZE 254
13#define MAX_USBCTRL_VENDORREQ_TIMES 10
14
15#define RTW_USB_CMD_READ 0xc0
16#define RTW_USB_CMD_WRITE 0x40
17#define RTW_USB_CMD_REQ 0x05
18
19#define RTW_USB_VENQT_CMD_IDX 0x00
20
21#define RTW_USB_TX_SEL_HQ BIT(0)
22#define RTW_USB_TX_SEL_LQ BIT(1)
23#define RTW_USB_TX_SEL_NQ BIT(2)
24#define RTW_USB_TX_SEL_EQ BIT(3)
25
26#define RTW_USB_BULK_IN_ADDR 0x80
27#define RTW_USB_INT_IN_ADDR 0x81
28
29#define RTW_USB_HW_QUEUE_ENTRY 8
30
31#define RTW_USB_PACKET_OFFSET_SZ 8
32#define RTW_USB_MAX_XMITBUF_SZ (1024 * 20)
33#define RTW_USB_MAX_RECVBUF_SZ 32768
34
35#define RTW_USB_RECVBUFF_ALIGN_SZ 8
36
37#define RTW_USB_RXAGG_SIZE 6
38#define RTW_USB_RXAGG_TIMEOUT 10
39
40#define RTW_USB_RXCB_NUM 4
41
42#define RTW_USB_EP_MAX 4
43
44#define TX_DESC_QSEL_MAX 20
45
46#define RTW_USB_VENDOR_ID_REALTEK 0x0bda
47
48static inline struct rtw_usb *rtw_get_usb_priv(struct rtw_dev *rtwdev)
49{
50 return (struct rtw_usb *)rtwdev->priv;
51}
52
53struct rx_usb_ctrl_block {
54 struct rtw_dev *rtwdev;
55 struct urb *rx_urb;
56 struct sk_buff *rx_skb;
57};
58
59struct rtw_usb_tx_data {
60 u8 sn;
61};
62
63struct rtw_usb {
64 struct rtw_dev *rtwdev;
65 struct usb_device *udev;
66
67 /* protects usb_data_index */
68 spinlock_t usb_lock;
69 __le32 *usb_data;
70 unsigned int usb_data_index;
71
72 u8 pipe_interrupt;
73 u8 pipe_in;
74 u8 out_ep[RTW_USB_EP_MAX];
75 int qsel_to_ep[TX_DESC_QSEL_MAX];
76
77 struct workqueue_struct *txwq, *rxwq;
78
79 struct sk_buff_head tx_queue[RTW_USB_EP_MAX];
80 struct work_struct tx_work;
81
82 struct rx_usb_ctrl_block rx_cb[RTW_USB_RXCB_NUM];
83 struct sk_buff_head rx_queue;
84 struct work_struct rx_work;
85};
86
87static inline struct rtw_usb_tx_data *rtw_usb_get_tx_data(struct sk_buff *skb)
88{
89 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
90
91 BUILD_BUG_ON(sizeof(struct rtw_usb_tx_data) >
92 sizeof(info->status.status_driver_data));
93
94 return (struct rtw_usb_tx_data *)info->status.status_driver_data;
95}
96
97int rtw_usb_probe(struct usb_interface *intf, const struct usb_device_id *id);
98void rtw_usb_disconnect(struct usb_interface *intf);
99
100#endif
101

source code of linux/drivers/net/wireless/realtek/rtw88/usb.h