1/*-
2 * Copyright (c) 2016 Andriy Voskoboinyk <avos@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD$");
29
30#include "opt_wlan.h"
31
32#include <sys/param.h>
33#include <sys/lock.h>
34#include <sys/mutex.h>
35#include <sys/mbuf.h>
36#include <sys/kernel.h>
37#include <sys/socket.h>
38#include <sys/systm.h>
39#include <sys/malloc.h>
40#include <sys/queue.h>
41#include <sys/taskqueue.h>
42#include <sys/bus.h>
43#include <sys/endian.h>
44#include <sys/linker.h>
45
46#include <net/if.h>
47#include <net/ethernet.h>
48#include <net/if_media.h>
49
50#include <net80211/ieee80211_var.h>
51#include <net80211/ieee80211_radiotap.h>
52#include <net80211/ieee80211_ratectl.h>
53
54#include <dev/rtwn/if_rtwnvar.h>
55
56#include <dev/rtwn/rtl8812a/r12a_fw_cmd.h>
57#include <dev/rtwn/rtl8812a/r12a_rx_desc.h>
58
59#include <dev/rtwn/rtl8812a/usb/r12au.h>
60
61
62int
63r12au_classify_intr(struct rtwn_softc *sc, void *buf, int len)
64{
65	struct r92c_rx_stat *stat = buf;
66	uint32_t rxdw2 = le32toh(stat->rxdw2);
67
68	if (rxdw2 & R12A_RXDW2_RPT_C2H) {
69		int pos = sizeof(struct r92c_rx_stat);
70		/* Check if Rx descriptor + command id/sequence fits. */
71		if (len < pos + 2)	/* unknown, skip */
72			return (RTWN_RX_DATA);
73
74		if (((uint8_t *)buf)[pos] == R12A_C2H_TX_REPORT)
75			return (RTWN_RX_TX_REPORT);
76		else
77			return (RTWN_RX_OTHER);
78	} else
79		return (RTWN_RX_DATA);
80}
81
82int
83r12au_align_rx(int totlen, int len)
84{
85	if (totlen < len)
86		return (roundup2(totlen, 8));
87
88	return (totlen);
89}
90