2020-09-01 21:33:31 +00:00

89 lines
2.7 KiB
C

/*-
* Copyright (c) 2016 Andriy Voskoboinyk <avos@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_wlan.h"
#include <sys/param.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/mbuf.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/queue.h>
#include <sys/taskqueue.h>
#include <sys/bus.h>
#include <sys/endian.h>
#include <sys/linker.h>
#include <net/if.h>
#include <net/ethernet.h>
#include <net/if_media.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_radiotap.h>
#include <net80211/ieee80211_ratectl.h>
#include <dev/rtwn/if_rtwnvar.h>
#include <dev/rtwn/rtl8812a/r12a_fw_cmd.h>
#include <dev/rtwn/rtl8812a/r12a_rx_desc.h>
#include <dev/rtwn/rtl8812a/usb/r12au.h>
int
r12au_classify_intr(struct rtwn_softc *sc, void *buf, int len)
{
struct r92c_rx_stat *stat = buf;
uint32_t rxdw2 = le32toh(stat->rxdw2);
if (rxdw2 & R12A_RXDW2_RPT_C2H) {
int pos = sizeof(struct r92c_rx_stat);
/* Check if Rx descriptor + command id/sequence fits. */
if (len < pos + 2) /* unknown, skip */
return (RTWN_RX_DATA);
if (((uint8_t *)buf)[pos] == R12A_C2H_TX_REPORT)
return (RTWN_RX_TX_REPORT);
else
return (RTWN_RX_OTHER);
} else
return (RTWN_RX_DATA);
}
int
r12au_align_rx(int totlen, int len)
{
if (totlen < len)
return (roundup2(totlen, 8));
return (totlen);
}