#include <machine/rtems-bsd-kernel-space.h>
/*-
* 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 <rtems/bsd/local/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_rtwnreg.h>
#include <dev/rtwn/if_rtwnvar.h>
#include <dev/rtwn/if_rtwn_debug.h>
#include <dev/rtwn/if_rtwn_ridx.h>
#include <dev/rtwn/rtl8812a/r12a.h>
#include <dev/rtwn/rtl8812a/r12a_var.h>
#include <dev/rtwn/rtl8812a/r12a_fw_cmd.h>
#include <dev/rtwn/rtl8812a/r12a_rx_desc.h>
#ifndef RTWN_WITHOUT_UCODE
void
r12a_ratectl_tx_complete(struct rtwn_softc *sc, uint8_t *buf, int len)
{
#if __FreeBSD_version >= 1200012
struct ieee80211_ratectl_tx_status txs;
#endif
struct r12a_c2h_tx_rpt *rpt;
struct ieee80211_node *ni;
int ntries;
/* Skip Rx descriptor / report id / sequence fields. */
buf += sizeof(struct r92c_rx_stat) + 2;
len -= sizeof(struct r92c_rx_stat) + 2;
rpt = (struct r12a_c2h_tx_rpt *)buf;
if (len != sizeof(*rpt)) {
device_printf(sc->sc_dev,
"%s: wrong report size (%d, must be %zu)\n",
__func__, len, sizeof(*rpt));
return;
}
RTWN_DPRINTF(sc, RTWN_DEBUG_INTR,
"%s: ccx report dump: 0: %02X, id: %02X, 2: %02X, queue time: "
"low %02X, high %02X, final ridx: %02X, rsvd: %04X\n",
__func__, rpt->txrptb0, rpt->macid, rpt->txrptb2,
rpt->queue_time_low, rpt->queue_time_high, rpt->final_rate,
rpt->reserved);
if (rpt->macid > sc->macid_limit) {
device_printf(sc->sc_dev,
"macid %u is too big; increase MACID_MAX limit\n",
rpt->macid);
return;
}
ntries = MS(rpt->txrptb2, R12A_TXRPTB2_RETRY_CNT);
ni = sc->node_list[rpt->macid];
if (ni != NULL) {
RTWN_DPRINTF(sc, RTWN_DEBUG_INTR, "%s: frame for macid %u was"
"%s sent (%d retries)\n", __func__, rpt->macid,
(rpt->txrptb0 & (R12A_TXRPTB0_RETRY_OVER |
R12A_TXRPTB0_LIFE_EXPIRE)) ? " not" : "", ntries);
#if __FreeBSD_version >= 1200012
txs.flags = IEEE80211_RATECTL_STATUS_LONG_RETRY |
IEEE80211_RATECTL_STATUS_FINAL_RATE;
txs.long_retries = ntries;
if (rpt->final_rate > RTWN_RIDX_OFDM54) { /* MCS */
txs.final_rate =
rpt->final_rate - RTWN_RIDX_HT_MCS_SHIFT;
txs.final_rate |= IEEE80211_RATE_MCS;
} else
txs.final_rate = ridx2rate[rpt->final_rate];
if (rpt->txrptb0 & R12A_TXRPTB0_RETRY_OVER)
txs.status = IEEE80211_RATECTL_TX_FAIL_LONG;
else if (rpt->txrptb0 & R12A_TXRPTB0_LIFE_EXPIRE)
txs.status = IEEE80211_RATECTL_TX_FAIL_EXPIRED;
else
txs.status = IEEE80211_RATECTL_TX_SUCCESS;
ieee80211_ratectl_tx_complete(ni, &txs);
#else
struct ieee80211vap *vap = ni->ni_vap;
if (rpt->txrptb0 & R12A_TXRPTB0_RETRY_OVER) {
ieee80211_ratectl_tx_complete(vap, ni,
IEEE80211_RATECTL_TX_FAILURE, &ntries, NULL);
} else {
ieee80211_ratectl_tx_complete(vap, ni,
IEEE80211_RATECTL_TX_SUCCESS, &ntries, NULL);
}
#endif
} else {
RTWN_DPRINTF(sc, RTWN_DEBUG_INTR,
"%s: macid %u, ni is NULL\n", __func__, rpt->macid);
}
}
void
r12a_handle_c2h_report(struct rtwn_softc *sc, uint8_t *buf, int len)
{
struct r12a_softc *rs = sc->sc_priv;
/* Skip Rx descriptor. */
buf += sizeof(struct r92c_rx_stat);
len -= sizeof(struct r92c_rx_stat);
if (len < 2) {
device_printf(sc->sc_dev, "C2H report too short (len %d)\n",
len);
return;
}
len -= 2;
switch (buf[0]) { /* command id */
case R12A_C2H_TX_REPORT:
/* NOTREACHED */
KASSERT(0, ("use handle_tx_report() instead of %s\n",
__func__));
break;
case R12A_C2H_IQK_FINISHED:
RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB,
"FW IQ calibration finished\n");
rs->rs_flags &= ~R12A_IQK_RUNNING;
break;
default:
device_printf(sc->sc_dev,
"%s: C2H report %u was not handled\n",
__func__, buf[0]);
}
}
#else
void
r12a_ratectl_tx_complete(struct rtwn_softc *sc, uint8_t *buf, int len)
{
/* Should not happen. */
device_printf(sc->sc_dev, "%s: called\n", __func__);
}
void
r12a_handle_c2h_report(struct rtwn_softc *sc, uint8_t *buf, int len)
{
/* Should not happen. */
device_printf(sc->sc_dev, "%s: called\n", __func__);
}
#endif
int
r12a_check_frame_checksum(struct rtwn_softc *sc, struct mbuf *m)
{
struct r12a_softc *rs = sc->sc_priv;
struct r92c_rx_stat *stat;
uint32_t rxdw1;
stat = mtod(m, struct r92c_rx_stat *);
rxdw1 = le32toh(stat->rxdw1);
if (rxdw1 & R12A_RXDW1_CKSUM) {
RTWN_DPRINTF(sc, RTWN_DEBUG_RECV,
"%s: %s/%s checksum is %s\n", __func__,
(rxdw1 & R12A_RXDW1_UDP) ? "UDP" : "TCP",
(rxdw1 & R12A_RXDW1_IPV6) ? "IPv6" : "IP",
(rxdw1 & R12A_RXDW1_CKSUM_ERR) ? "invalid" : "valid");
if (rxdw1 & R12A_RXDW1_CKSUM_ERR)
return (-1);
if ((rxdw1 & R12A_RXDW1_IPV6) ?
(rs->rs_flags & R12A_RXCKSUM6_EN) :
(rs->rs_flags & R12A_RXCKSUM_EN)) {
m->m_pkthdr.csum_flags = CSUM_IP_CHECKED |
CSUM_IP_VALID | CSUM_DATA_VALID | CSUM_PSEUDO_HDR;
m->m_pkthdr.csum_data = 0xffff;
}
}
return (0);
}
uint8_t
r12a_rx_radiotap_flags(const void *buf)
{
const struct r92c_rx_stat *stat = buf;
uint8_t flags, rate;
if (!(stat->rxdw4 & htole32(R12A_RXDW4_SPLCP)))
return (0);
rate = MS(le32toh(stat->rxdw3), R12A_RXDW3_RATE);
if (RTWN_RATE_IS_CCK(rate))
flags = IEEE80211_RADIOTAP_F_SHORTPRE;
else
flags = IEEE80211_RADIOTAP_F_SHORTGI;
return (flags);
}
void
r12a_get_rx_stats(struct rtwn_softc *sc, struct ieee80211_rx_stats *rxs,
const void *desc, const void *physt_ptr)
{
const struct r92c_rx_stat *stat = desc;
const struct r12a_rx_phystat *physt = physt_ptr;
uint32_t rxdw0, rxdw1, rxdw3, rxdw4;
uint8_t rate;
rxdw0 = le32toh(stat->rxdw0);
rxdw1 = le32toh(stat->rxdw1);
rxdw3 = le32toh(stat->rxdw3);
rxdw4 = le32toh(stat->rxdw4);
rate = MS(rxdw3, R12A_RXDW3_RATE);
/* TODO: STBC */
if (rxdw4 & R12A_RXDW4_LDPC)
rxs->c_pktflags |= IEEE80211_RX_F_LDPC;
if (rxdw1 & R12A_RXDW1_AMPDU) {
if (rxdw0 & R92C_RXDW0_PHYST)
rxs->c_pktflags |= IEEE80211_RX_F_AMPDU;
else
rxs->c_pktflags |= IEEE80211_RX_F_AMPDU_MORE;
}
if ((rxdw4 & R12A_RXDW4_SPLCP) && rate >= RTWN_RIDX_HT_MCS(0))
rxs->c_pktflags |= IEEE80211_RX_F_SHORTGI;
switch (MS(rxdw4, R12A_RXDW4_BW)) {
case R12A_RXDW4_BW20:
rxs->c_width = IEEE80211_RX_FW_20MHZ;
break;
case R12A_RXDW4_BW40:
rxs->c_width = IEEE80211_RX_FW_40MHZ;
break;
case R12A_RXDW4_BW80:
rxs->c_width = IEEE80211_RX_FW_80MHZ;
break;
default:
break;
}
if (RTWN_RATE_IS_CCK(rate))
rxs->c_phytype = IEEE80211_RX_FP_11B;
else {
int is5ghz;
/* XXX magic */
/* XXX check with RTL8812AU */
is5ghz = (physt->cfosho[2] != 0x01);
if (rate < RTWN_RIDX_HT_MCS(0)) {
if (is5ghz)
rxs->c_phytype = IEEE80211_RX_FP_11A;
else
rxs->c_phytype = IEEE80211_RX_FP_11G;
} else {
if (is5ghz)
rxs->c_phytype = IEEE80211_RX_FP_11NA;
else
rxs->c_phytype = IEEE80211_RX_FP_11NG;
}
}
/* Map HW rate index to 802.11 rate. */
if (rate < RTWN_RIDX_HT_MCS(0)) {
rxs->c_rate = ridx2rate[rate];
if (RTWN_RATE_IS_CCK(rate))
rxs->c_pktflags |= IEEE80211_RX_F_CCK;
else
rxs->c_pktflags |= IEEE80211_RX_F_OFDM;
} else { /* MCS0~15. */
/* TODO: VHT rates */
rxs->c_rate =
IEEE80211_RATE_MCS | (rate - RTWN_RIDX_HT_MCS_SHIFT);
rxs->c_pktflags |= IEEE80211_RX_F_HT;
}
/*
* XXX always zero for RTL8821AU
* (vendor driver does not check this field)
*/
#if 0
rxs->r_flags |= IEEE80211_R_IEEE | IEEE80211_R_FREQ;
rxs->c_ieee = MS(le16toh(physt->phyw1), R12A_PHYW1_CHAN);
rxs->c_freq = ieee80211_ieee2mhz(rxs->c_ieee,
(rxs->c_ieee < 36) ? IEEE80211_CHAN_2GHZ : IEEE80211_CHAN_5GHZ);
#endif
}
