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