1/*-
2 * Copyright (c) 2010 Damien Bergamini <damien.bergamini@free.fr>
3 * Copyright (c) 2016 Andriy Voskoboinyk <avos@FreeBSD.org>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 *
17 * $OpenBSD: if_urtwnreg.h,v 1.3 2010/11/16 18:02:59 damien Exp $
18 * $FreeBSD$
19 */
20
21#ifndef RTWN_USBVAR_H
22#define RTWN_USBVAR_H
23
24#include <dev/rtwn/if_rtwnreg.h>	/* for struct rtwn_rx_stat_common */
25
26#define RTWN_USB_RXBUFSZ_UNIT		(512)
27#define RTWN_USB_RXBUFSZ_MIN		( 4)
28#define RTWN_USB_RXBUFSZ_DEF		(24)
29#define RTWN_USB_RXBUFSZ_MAX		(64)
30#define RTWN_USB_TXBUFSZ		(16 * 1024)
31
32#define RTWN_IFACE_INDEX		0
33
34#define RTWN_USB_RX_LIST_COUNT		1
35#define RTWN_USB_TX_LIST_COUNT		16
36
37struct rtwn_data {
38	uint8_t				*buf;
39	/* 'id' is meaningful for beacons only */
40	int				id;
41	uint16_t			buflen;
42	struct mbuf			*m;
43	struct ieee80211_node		*ni;
44	STAILQ_ENTRY(rtwn_data)	next;
45};
46typedef STAILQ_HEAD(, rtwn_data) rtwn_datahead;
47
48enum {
49	RTWN_BULK_RX,
50	RTWN_BULK_TX_BE,	/* = WME_AC_BE */
51	RTWN_BULK_TX_BK,	/* = WME_AC_BK */
52	RTWN_BULK_TX_VI,	/* = WME_AC_VI */
53	RTWN_BULK_TX_VO,	/* = WME_AC_VO */
54	RTWN_N_TRANSFER = 5,
55};
56
57#define RTWN_EP_QUEUES		RTWN_BULK_RX
58
59struct rtwn_usb_softc {
60	struct rtwn_softc	uc_sc;		/* must be the first */
61	struct usb_device	*uc_udev;
62	struct usb_xfer		*uc_xfer[RTWN_N_TRANSFER];
63
64	struct rtwn_data	uc_rx[RTWN_USB_RX_LIST_COUNT];
65	rtwn_datahead		uc_rx_active;
66	rtwn_datahead		uc_rx_inactive;
67	int			uc_rx_buf_size;
68
69	struct rtwn_rx_stat_common uc_rx_stat;
70	int			uc_rx_stat_len;
71	int			uc_rx_off;
72
73	struct rtwn_data	uc_tx[RTWN_USB_TX_LIST_COUNT];
74	rtwn_datahead		uc_tx_active;
75	rtwn_datahead		uc_tx_inactive;
76	rtwn_datahead		uc_tx_pending;
77
78	int			(*uc_align_rx)(int, int);
79
80	int			ntx;
81	int			tx_agg_desc_num;
82};
83#define RTWN_USB_SOFTC(sc)	((struct rtwn_usb_softc *)(sc))
84
85#define rtwn_usb_align_rx(_uc, _totlen, _len) \
86	(((_uc)->uc_align_rx)((_totlen), (_len)))
87
88#endif	/* RTWN_USBVAR_H */
89