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 #include "opt_wlan.h"
29
30 #include <sys/param.h>
31 #include <sys/lock.h>
32 #include <sys/mutex.h>
33 #include <sys/mbuf.h>
34 #include <sys/kernel.h>
35 #include <sys/socket.h>
36 #include <sys/systm.h>
37 #include <sys/malloc.h>
38 #include <sys/queue.h>
39 #include <sys/taskqueue.h>
40 #include <sys/bus.h>
41 #include <sys/endian.h>
42 #include <sys/linker.h>
43
44 #include <net/if.h>
45 #include <net/ethernet.h>
46 #include <net/if_media.h>
47
48 #include <net80211/ieee80211_var.h>
49 #include <net80211/ieee80211_radiotap.h>
50 #include <net80211/ieee80211_ratectl.h>
51
52 #include <dev/rtwn/if_rtwnvar.h>
53
54 #include <dev/rtwn/rtl8812a/r12a_fw_cmd.h>
55 #include <dev/rtwn/rtl8812a/r12a_rx_desc.h>
56
57 #include <dev/rtwn/rtl8812a/usb/r12au.h>
58
59 int
r12au_classify_intr(struct rtwn_softc * sc,void * buf,int len)60 r12au_classify_intr(struct rtwn_softc *sc, void *buf, int len)
61 {
62 struct r92c_rx_stat *stat = buf;
63 uint32_t rxdw2 = le32toh(stat->rxdw2);
64
65 if (rxdw2 & R12A_RXDW2_RPT_C2H) {
66 int pos = sizeof(struct r92c_rx_stat);
67 /* Check if Rx descriptor + command id/sequence fits. */
68 if (len < pos + 2) /* unknown, skip */
69 return (RTWN_RX_DATA);
70
71 if (((uint8_t *)buf)[pos] == R12A_C2H_TX_REPORT)
72 return (RTWN_RX_TX_REPORT);
73 else
74 return (RTWN_RX_OTHER);
75 } else
76 return (RTWN_RX_DATA);
77 }
78
79 int
r12au_align_rx(int totlen,int len)80 r12au_align_rx(int totlen, int len)
81 {
82 if (totlen < len)
83 return (roundup2(totlen, 8));
84
85 return (totlen);
86 }
87