329 lines
9.1 KiB
C
329 lines
9.1 KiB
C
/*-
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* Copyright (c) 2016 Andriy Voskoboinyk <avos@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_wlan.h"
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#include <sys/param.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/mbuf.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/queue.h>
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#include <sys/taskqueue.h>
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#include <sys/bus.h>
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#include <sys/endian.h>
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#include <sys/linker.h>
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#include <net/if.h>
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#include <net/ethernet.h>
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#include <net/if_media.h>
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_radiotap.h>
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#include <net80211/ieee80211_ratectl.h>
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#include <dev/rtwn/if_rtwnreg.h>
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#include <dev/rtwn/if_rtwnvar.h>
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#include <dev/rtwn/if_rtwn_debug.h>
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#include <dev/rtwn/if_rtwn_ridx.h>
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#include <dev/rtwn/rtl8812a/r12a.h>
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#include <dev/rtwn/rtl8812a/r12a_var.h>
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#include <dev/rtwn/rtl8812a/r12a_fw_cmd.h>
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#include <dev/rtwn/rtl8812a/r12a_rx_desc.h>
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#ifndef RTWN_WITHOUT_UCODE
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void
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r12a_ratectl_tx_complete(struct rtwn_softc *sc, uint8_t *buf, int len)
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{
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#if __FreeBSD_version >= 1200012
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struct ieee80211_ratectl_tx_status txs;
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#endif
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struct r12a_c2h_tx_rpt *rpt;
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struct ieee80211_node *ni;
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int ntries;
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/* Skip Rx descriptor / report id / sequence fields. */
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buf += sizeof(struct r92c_rx_stat) + 2;
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len -= sizeof(struct r92c_rx_stat) + 2;
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rpt = (struct r12a_c2h_tx_rpt *)buf;
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if (len != sizeof(*rpt)) {
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device_printf(sc->sc_dev,
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"%s: wrong report size (%d, must be %zu)\n",
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__func__, len, sizeof(*rpt));
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return;
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}
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RTWN_DPRINTF(sc, RTWN_DEBUG_INTR,
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"%s: ccx report dump: 0: %02X, id: %02X, 2: %02X, queue time: "
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"low %02X, high %02X, final ridx: %02X, rsvd: %04X\n",
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__func__, rpt->txrptb0, rpt->macid, rpt->txrptb2,
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rpt->queue_time_low, rpt->queue_time_high, rpt->final_rate,
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rpt->reserved);
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if (rpt->macid > sc->macid_limit) {
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device_printf(sc->sc_dev,
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"macid %u is too big; increase MACID_MAX limit\n",
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rpt->macid);
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return;
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}
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ntries = MS(rpt->txrptb2, R12A_TXRPTB2_RETRY_CNT);
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ni = sc->node_list[rpt->macid];
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if (ni != NULL) {
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RTWN_DPRINTF(sc, RTWN_DEBUG_INTR, "%s: frame for macid %u was"
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"%s sent (%d retries)\n", __func__, rpt->macid,
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(rpt->txrptb0 & (R12A_TXRPTB0_RETRY_OVER |
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R12A_TXRPTB0_LIFE_EXPIRE)) ? " not" : "", ntries);
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#if __FreeBSD_version >= 1200012
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txs.flags = IEEE80211_RATECTL_STATUS_LONG_RETRY |
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IEEE80211_RATECTL_STATUS_FINAL_RATE;
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txs.long_retries = ntries;
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if (rpt->final_rate > RTWN_RIDX_OFDM54) { /* MCS */
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txs.final_rate =
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rpt->final_rate - RTWN_RIDX_HT_MCS_SHIFT;
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txs.final_rate |= IEEE80211_RATE_MCS;
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} else
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txs.final_rate = ridx2rate[rpt->final_rate];
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if (rpt->txrptb0 & R12A_TXRPTB0_RETRY_OVER)
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txs.status = IEEE80211_RATECTL_TX_FAIL_LONG;
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else if (rpt->txrptb0 & R12A_TXRPTB0_LIFE_EXPIRE)
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txs.status = IEEE80211_RATECTL_TX_FAIL_EXPIRED;
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else
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txs.status = IEEE80211_RATECTL_TX_SUCCESS;
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ieee80211_ratectl_tx_complete(ni, &txs);
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#else
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struct ieee80211vap *vap = ni->ni_vap;
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if (rpt->txrptb0 & R12A_TXRPTB0_RETRY_OVER) {
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ieee80211_ratectl_tx_complete(vap, ni,
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IEEE80211_RATECTL_TX_FAILURE, &ntries, NULL);
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} else {
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ieee80211_ratectl_tx_complete(vap, ni,
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IEEE80211_RATECTL_TX_SUCCESS, &ntries, NULL);
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}
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#endif
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} else {
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RTWN_DPRINTF(sc, RTWN_DEBUG_INTR,
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"%s: macid %u, ni is NULL\n", __func__, rpt->macid);
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}
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}
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void
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r12a_handle_c2h_report(struct rtwn_softc *sc, uint8_t *buf, int len)
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{
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struct r12a_softc *rs = sc->sc_priv;
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/* Skip Rx descriptor. */
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buf += sizeof(struct r92c_rx_stat);
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len -= sizeof(struct r92c_rx_stat);
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if (len < 2) {
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device_printf(sc->sc_dev, "C2H report too short (len %d)\n",
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len);
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return;
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}
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len -= 2;
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switch (buf[0]) { /* command id */
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case R12A_C2H_TX_REPORT:
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/* NOTREACHED */
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KASSERT(0, ("use handle_tx_report() instead of %s\n",
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__func__));
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break;
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case R12A_C2H_IQK_FINISHED:
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RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB,
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"FW IQ calibration finished\n");
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rs->rs_flags &= ~R12A_IQK_RUNNING;
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break;
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default:
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device_printf(sc->sc_dev,
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"%s: C2H report %u was not handled\n",
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__func__, buf[0]);
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}
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}
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#else
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void
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r12a_ratectl_tx_complete(struct rtwn_softc *sc, uint8_t *buf, int len)
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{
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/* Should not happen. */
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device_printf(sc->sc_dev, "%s: called\n", __func__);
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}
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void
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r12a_handle_c2h_report(struct rtwn_softc *sc, uint8_t *buf, int len)
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{
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/* Should not happen. */
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device_printf(sc->sc_dev, "%s: called\n", __func__);
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}
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#endif
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int
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r12a_check_frame_checksum(struct rtwn_softc *sc, struct mbuf *m)
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{
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struct r12a_softc *rs = sc->sc_priv;
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struct r92c_rx_stat *stat;
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uint32_t rxdw1;
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stat = mtod(m, struct r92c_rx_stat *);
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rxdw1 = le32toh(stat->rxdw1);
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if (rxdw1 & R12A_RXDW1_CKSUM) {
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RTWN_DPRINTF(sc, RTWN_DEBUG_RECV,
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"%s: %s/%s checksum is %s\n", __func__,
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(rxdw1 & R12A_RXDW1_UDP) ? "UDP" : "TCP",
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(rxdw1 & R12A_RXDW1_IPV6) ? "IPv6" : "IP",
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(rxdw1 & R12A_RXDW1_CKSUM_ERR) ? "invalid" : "valid");
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if (rxdw1 & R12A_RXDW1_CKSUM_ERR)
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return (-1);
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if ((rxdw1 & R12A_RXDW1_IPV6) ?
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(rs->rs_flags & R12A_RXCKSUM6_EN) :
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(rs->rs_flags & R12A_RXCKSUM_EN)) {
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m->m_pkthdr.csum_flags = CSUM_IP_CHECKED |
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CSUM_IP_VALID | CSUM_DATA_VALID | CSUM_PSEUDO_HDR;
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m->m_pkthdr.csum_data = 0xffff;
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}
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}
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return (0);
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}
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uint8_t
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r12a_rx_radiotap_flags(const void *buf)
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{
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const struct r92c_rx_stat *stat = buf;
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uint8_t flags, rate;
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if (!(stat->rxdw4 & htole32(R12A_RXDW4_SPLCP)))
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return (0);
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rate = MS(le32toh(stat->rxdw3), R12A_RXDW3_RATE);
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if (RTWN_RATE_IS_CCK(rate))
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flags = IEEE80211_RADIOTAP_F_SHORTPRE;
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else
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flags = IEEE80211_RADIOTAP_F_SHORTGI;
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return (flags);
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}
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void
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r12a_get_rx_stats(struct rtwn_softc *sc, struct ieee80211_rx_stats *rxs,
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const void *desc, const void *physt_ptr)
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{
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const struct r92c_rx_stat *stat = desc;
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const struct r12a_rx_phystat *physt = physt_ptr;
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uint32_t rxdw0, rxdw1, rxdw3, rxdw4;
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uint8_t rate;
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rxdw0 = le32toh(stat->rxdw0);
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rxdw1 = le32toh(stat->rxdw1);
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rxdw3 = le32toh(stat->rxdw3);
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rxdw4 = le32toh(stat->rxdw4);
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rate = MS(rxdw3, R12A_RXDW3_RATE);
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/* TODO: STBC */
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if (rxdw4 & R12A_RXDW4_LDPC)
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rxs->c_pktflags |= IEEE80211_RX_F_LDPC;
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if (rxdw1 & R12A_RXDW1_AMPDU) {
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if (rxdw0 & R92C_RXDW0_PHYST)
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rxs->c_pktflags |= IEEE80211_RX_F_AMPDU;
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else
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rxs->c_pktflags |= IEEE80211_RX_F_AMPDU_MORE;
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}
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if ((rxdw4 & R12A_RXDW4_SPLCP) && rate >= RTWN_RIDX_HT_MCS(0))
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rxs->c_pktflags |= IEEE80211_RX_F_SHORTGI;
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switch (MS(rxdw4, R12A_RXDW4_BW)) {
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case R12A_RXDW4_BW20:
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rxs->c_width = IEEE80211_RX_FW_20MHZ;
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break;
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case R12A_RXDW4_BW40:
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rxs->c_width = IEEE80211_RX_FW_40MHZ;
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break;
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case R12A_RXDW4_BW80:
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rxs->c_width = IEEE80211_RX_FW_80MHZ;
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break;
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default:
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break;
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}
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if (RTWN_RATE_IS_CCK(rate))
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rxs->c_phytype = IEEE80211_RX_FP_11B;
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else {
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int is5ghz;
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/* XXX magic */
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/* XXX check with RTL8812AU */
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is5ghz = (physt->cfosho[2] != 0x01);
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if (rate < RTWN_RIDX_HT_MCS(0)) {
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if (is5ghz)
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rxs->c_phytype = IEEE80211_RX_FP_11A;
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else
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rxs->c_phytype = IEEE80211_RX_FP_11G;
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} else {
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if (is5ghz)
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rxs->c_phytype = IEEE80211_RX_FP_11NA;
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else
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rxs->c_phytype = IEEE80211_RX_FP_11NG;
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}
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}
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/* Map HW rate index to 802.11 rate. */
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if (rate < RTWN_RIDX_HT_MCS(0)) {
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rxs->c_rate = ridx2rate[rate];
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if (RTWN_RATE_IS_CCK(rate))
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rxs->c_pktflags |= IEEE80211_RX_F_CCK;
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else
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rxs->c_pktflags |= IEEE80211_RX_F_OFDM;
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} else { /* MCS0~15. */
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/* TODO: VHT rates */
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rxs->c_rate =
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IEEE80211_RATE_MCS | (rate - RTWN_RIDX_HT_MCS_SHIFT);
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rxs->c_pktflags |= IEEE80211_RX_F_HT;
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}
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/*
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* XXX always zero for RTL8821AU
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* (vendor driver does not check this field)
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*/
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#if 0
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rxs->r_flags |= IEEE80211_R_IEEE | IEEE80211_R_FREQ;
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rxs->c_ieee = MS(le16toh(physt->phyw1), R12A_PHYW1_CHAN);
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rxs->c_freq = ieee80211_ieee2mhz(rxs->c_ieee,
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(rxs->c_ieee < 36) ? IEEE80211_CHAN_2GHZ : IEEE80211_CHAN_5GHZ);
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#endif
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}
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