diff options
Diffstat (limited to 'freebsd/sys/dev/rtwn/rtl8188e/r88e_rx.c')
| -rw-r--r-- | freebsd/sys/dev/rtwn/rtl8188e/r88e_rx.c | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/freebsd/sys/dev/rtwn/rtl8188e/r88e_rx.c b/freebsd/sys/dev/rtwn/rtl8188e/r88e_rx.c new file mode 100644 index 00000000..464542b4 --- /dev/null +++ b/freebsd/sys/dev/rtwn/rtl8188e/r88e_rx.c @@ -0,0 +1,213 @@ +#include <machine/rtems-bsd-kernel-space.h> + +/* $OpenBSD: if_urtwn.c,v 1.16 2011/02/10 17:26:40 jakemsr Exp $ */ + +/*- + * Copyright (c) 2010 Damien Bergamini <damien.bergamini@free.fr> + * Copyright (c) 2014 Kevin Lo <kevlo@FreeBSD.org> + * Copyright (c) 2015-2016 Andriy Voskoboinyk <avos@FreeBSD.org> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <rtems/bsd/local/opt_wlan.h> + +#include <rtems/bsd/sys/param.h> +#include <rtems/bsd/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/rtl8188e/r88e.h> +#include <dev/rtwn/rtl8188e/r88e_rx_desc.h> + + +void +r88e_ratectl_tx_complete(struct rtwn_softc *sc, uint8_t *buf, int len) +{ +#if __FreeBSD_version >= 1200012 + struct ieee80211_ratectl_tx_status txs; +#endif + struct r88e_tx_rpt_ccx *rpt; + struct ieee80211_node *ni; + uint8_t macid; + int ntries; + + /* Skip Rx descriptor. */ + buf += sizeof(struct r92c_rx_stat); + len -= sizeof(struct r92c_rx_stat); + + rpt = (struct r88e_tx_rpt_ccx *)buf; + if (len != sizeof(*rpt)) { + RTWN_DPRINTF(sc, RTWN_DEBUG_INTR, + "%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, 1: %02X, 2: %02X, queue time: " + "low %02X, high %02X, final ridx: %02X, 6: %02X, 7: %02X\n", + __func__, rpt->rptb0, rpt->rptb1, rpt->rptb2, rpt->queue_time_low, + rpt->queue_time_high, rpt->final_rate, rpt->rptb6, rpt->rptb7); + + macid = MS(rpt->rptb1, R88E_RPTB1_MACID); + if (macid > sc->macid_limit) { + device_printf(sc->sc_dev, + "macid %u is too big; increase MACID_MAX limit\n", + macid); + return; + } + + ntries = MS(rpt->rptb2, R88E_RPTB2_RETRY_CNT); + + ni = sc->node_list[macid]; + if (ni != NULL) { + RTWN_DPRINTF(sc, RTWN_DEBUG_INTR, "%s: frame for macid %u was" + "%s sent (%d retries)\n", __func__, macid, + (rpt->rptb1 & R88E_RPTB1_PKT_OK) ? "" : " 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 - 12) | IEEE80211_RATE_MCS; + } else + txs.final_rate = ridx2rate[rpt->final_rate]; + if (rpt->rptb1 & R88E_RPTB1_PKT_OK) + txs.status = IEEE80211_RATECTL_TX_SUCCESS; + else if (rpt->rptb2 & R88E_RPTB2_RETRY_OVER) + txs.status = IEEE80211_RATECTL_TX_FAIL_LONG; + else if (rpt->rptb2 & R88E_RPTB2_LIFE_EXPIRE) + txs.status = IEEE80211_RATECTL_TX_FAIL_EXPIRED; + else + txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; + ieee80211_ratectl_tx_complete(ni, &txs); +#else + struct ieee80211vap *vap = ni->ni_vap; + if (rpt->rptb1 & R88E_RPTB1_PKT_OK) { + ieee80211_ratectl_tx_complete(vap, ni, + IEEE80211_RATECTL_TX_SUCCESS, &ntries, NULL); + } else { + ieee80211_ratectl_tx_complete(vap, ni, + IEEE80211_RATECTL_TX_FAILURE, &ntries, NULL); + } +#endif + } else { + RTWN_DPRINTF(sc, RTWN_DEBUG_INTR, "%s: macid %u, ni is NULL\n", + __func__, macid); + } +} + +void +r88e_handle_c2h_report(struct rtwn_softc *sc, uint8_t *buf, int len) +{ + + /* Skip Rx descriptor. */ + buf += sizeof(struct r92c_rx_stat); + len -= sizeof(struct r92c_rx_stat); + + if (len != R88E_INTR_MSG_LEN) { + RTWN_DPRINTF(sc, RTWN_DEBUG_INTR, + "%s: wrong interrupt message size (%d, must be %d)\n", + __func__, len, R88E_INTR_MSG_LEN); + return; + } + + /* XXX TODO */ +} + +int8_t +r88e_get_rssi_cck(struct rtwn_softc *sc, void *physt) +{ + struct r88e_rx_phystat *phy = (struct r88e_rx_phystat *)physt; + int8_t lna_idx, vga_idx, rssi; + + lna_idx = (phy->agc_rpt & 0xe0) >> 5; + vga_idx = (phy->agc_rpt & 0x1f); + rssi = 6 - 2 * vga_idx; + + switch (lna_idx) { + case 7: + if (vga_idx > 27) + rssi = -100 + 6; + else + rssi += -100 + 2 * 27; + break; + case 6: + rssi += -48 + 2 * 2; + break; + case 5: + rssi += -42 + 2 * 7; + break; + case 4: + rssi += -36 + 2 * 7; + break; + case 3: + rssi += -24 + 2 * 7; + break; + case 2: + rssi += -6 + 2 * 5; + if (sc->sc_flags & RTWN_FLAG_CCK_HIPWR) + rssi -= 6; + break; + case 1: + rssi += 8; + break; + case 0: + rssi += 14; + break; + } + + return (rssi); +} + +int8_t +r88e_get_rssi_ofdm(struct rtwn_softc *sc, void *physt) +{ + struct r88e_rx_phystat *phy = (struct r88e_rx_phystat *)physt; + int rssi; + + /* Get average RSSI. */ + rssi = ((phy->sig_qual >> 1) & 0x7f) - 110; + + return (rssi); +} |