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 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 80 r12au_align_rx(int totlen, int len) 81 { 82 if (totlen < len) 83 return (roundup2(totlen, 8)); 84 85 return (totlen); 86 } 87