1 /* $OpenBSD: if_urtwn.c,v 1.16 2011/02/10 17:26:40 jakemsr Exp $ */ 2 3 /*- 4 * Copyright (c) 2010 Damien Bergamini <damien.bergamini@free.fr> 5 * Copyright (c) 2014 Kevin Lo <kevlo@FreeBSD.org> 6 * Copyright (c) 2015-2016 Andriy Voskoboinyk <avos@FreeBSD.org> 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21 #include <sys/cdefs.h> 22 __FBSDID("$FreeBSD$"); 23 24 #include "opt_wlan.h" 25 26 #include <sys/param.h> 27 #include <sys/lock.h> 28 #include <sys/mutex.h> 29 #include <sys/mbuf.h> 30 #include <sys/kernel.h> 31 #include <sys/socket.h> 32 #include <sys/systm.h> 33 #include <sys/malloc.h> 34 #include <sys/queue.h> 35 #include <sys/taskqueue.h> 36 #include <sys/bus.h> 37 #include <sys/endian.h> 38 #include <sys/linker.h> 39 40 #include <net/if.h> 41 #include <net/ethernet.h> 42 #include <net/if_media.h> 43 44 #include <net80211/ieee80211_var.h> 45 #include <net80211/ieee80211_radiotap.h> 46 #include <net80211/ieee80211_ratectl.h> 47 48 #include <dev/rtwn/if_rtwnreg.h> 49 #include <dev/rtwn/if_rtwnvar.h> 50 51 #include <dev/rtwn/if_rtwn_debug.h> 52 #include <dev/rtwn/if_rtwn_ridx.h> 53 54 #include <dev/rtwn/rtl8192c/r92c.h> 55 #include <dev/rtwn/rtl8188e/r88e.h> 56 #include <dev/rtwn/rtl8188e/r88e_rx_desc.h> 57 58 59 void 60 r88e_ratectl_tx_complete(struct rtwn_softc *sc, uint8_t *buf, int len) 61 { 62 #if __FreeBSD_version >= 1200012 63 struct ieee80211_ratectl_tx_status txs; 64 #endif 65 struct r88e_tx_rpt_ccx *rpt; 66 struct ieee80211_node *ni; 67 uint8_t macid; 68 int ntries; 69 70 /* Skip Rx descriptor. */ 71 buf += sizeof(struct r92c_rx_stat); 72 len -= sizeof(struct r92c_rx_stat); 73 74 rpt = (struct r88e_tx_rpt_ccx *)buf; 75 if (len != sizeof(*rpt)) { 76 RTWN_DPRINTF(sc, RTWN_DEBUG_INTR, 77 "%s: wrong report size (%d, must be %zu)\n", 78 __func__, len, sizeof(*rpt)); 79 return; 80 } 81 82 RTWN_DPRINTF(sc, RTWN_DEBUG_INTR, 83 "%s: ccx report dump: 0: %02X, 1: %02X, 2: %02X, queue time: " 84 "low %02X, high %02X, final ridx: %02X, 6: %02X, 7: %02X\n", 85 __func__, rpt->rptb0, rpt->rptb1, rpt->rptb2, rpt->queue_time_low, 86 rpt->queue_time_high, rpt->final_rate, rpt->rptb6, rpt->rptb7); 87 88 macid = MS(rpt->rptb1, R88E_RPTB1_MACID); 89 if (macid > sc->macid_limit) { 90 device_printf(sc->sc_dev, 91 "macid %u is too big; increase MACID_MAX limit\n", 92 macid); 93 return; 94 } 95 96 ntries = MS(rpt->rptb2, R88E_RPTB2_RETRY_CNT); 97 98 ni = sc->node_list[macid]; 99 if (ni != NULL) { 100 RTWN_DPRINTF(sc, RTWN_DEBUG_INTR, "%s: frame for macid %u was" 101 "%s sent (%d retries)\n", __func__, macid, 102 (rpt->rptb1 & R88E_RPTB1_PKT_OK) ? "" : " not", 103 ntries); 104 105 #if __FreeBSD_version >= 1200012 106 txs.flags = IEEE80211_RATECTL_STATUS_LONG_RETRY | 107 IEEE80211_RATECTL_STATUS_FINAL_RATE; 108 txs.long_retries = ntries; 109 if (rpt->final_rate > RTWN_RIDX_OFDM54) { /* MCS */ 110 txs.final_rate = 111 (rpt->final_rate - 12) | IEEE80211_RATE_MCS; 112 } else 113 txs.final_rate = ridx2rate[rpt->final_rate]; 114 if (rpt->rptb1 & R88E_RPTB1_PKT_OK) 115 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 116 else if (rpt->rptb2 & R88E_RPTB2_RETRY_OVER) 117 txs.status = IEEE80211_RATECTL_TX_FAIL_LONG; 118 else if (rpt->rptb2 & R88E_RPTB2_LIFE_EXPIRE) 119 txs.status = IEEE80211_RATECTL_TX_FAIL_EXPIRED; 120 else 121 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 122 ieee80211_ratectl_tx_complete(ni, &txs); 123 #else 124 struct ieee80211vap *vap = ni->ni_vap; 125 if (rpt->rptb1 & R88E_RPTB1_PKT_OK) { 126 ieee80211_ratectl_tx_complete(vap, ni, 127 IEEE80211_RATECTL_TX_SUCCESS, &ntries, NULL); 128 } else { 129 ieee80211_ratectl_tx_complete(vap, ni, 130 IEEE80211_RATECTL_TX_FAILURE, &ntries, NULL); 131 } 132 #endif 133 } else { 134 RTWN_DPRINTF(sc, RTWN_DEBUG_INTR, "%s: macid %u, ni is NULL\n", 135 __func__, macid); 136 } 137 } 138 139 void 140 r88e_handle_c2h_report(struct rtwn_softc *sc, uint8_t *buf, int len) 141 { 142 143 /* Skip Rx descriptor. */ 144 buf += sizeof(struct r92c_rx_stat); 145 len -= sizeof(struct r92c_rx_stat); 146 147 if (len != R88E_INTR_MSG_LEN) { 148 RTWN_DPRINTF(sc, RTWN_DEBUG_INTR, 149 "%s: wrong interrupt message size (%d, must be %d)\n", 150 __func__, len, R88E_INTR_MSG_LEN); 151 return; 152 } 153 154 /* XXX TODO */ 155 } 156 157 int8_t 158 r88e_get_rssi_cck(struct rtwn_softc *sc, void *physt) 159 { 160 struct r88e_rx_phystat *phy = (struct r88e_rx_phystat *)physt; 161 int8_t lna_idx, vga_idx, rssi; 162 163 lna_idx = (phy->agc_rpt & 0xe0) >> 5; 164 vga_idx = (phy->agc_rpt & 0x1f); 165 rssi = 6 - 2 * vga_idx; 166 167 switch (lna_idx) { 168 case 7: 169 if (vga_idx > 27) 170 rssi = -100 + 6; 171 else 172 rssi += -100 + 2 * 27; 173 break; 174 case 6: 175 rssi += -48 + 2 * 2; 176 break; 177 case 5: 178 rssi += -42 + 2 * 7; 179 break; 180 case 4: 181 rssi += -36 + 2 * 7; 182 break; 183 case 3: 184 rssi += -24 + 2 * 7; 185 break; 186 case 2: 187 rssi += -6 + 2 * 5; 188 if (sc->sc_flags & RTWN_FLAG_CCK_HIPWR) 189 rssi -= 6; 190 break; 191 case 1: 192 rssi += 8; 193 break; 194 case 0: 195 rssi += 14; 196 break; 197 } 198 199 return (rssi); 200 } 201 202 int8_t 203 r88e_get_rssi_ofdm(struct rtwn_softc *sc, void *physt) 204 { 205 struct r88e_rx_phystat *phy = (struct r88e_rx_phystat *)physt; 206 int rssi; 207 208 /* Get average RSSI. */ 209 rssi = ((phy->sig_qual >> 1) & 0x7f) - 110; 210 211 return (rssi); 212 } 213 214 void 215 r88e_get_rx_stats(struct rtwn_softc *sc, struct ieee80211_rx_stats *rxs, 216 const void *desc, const void *physt_ptr) 217 { 218 const struct r88e_rx_phystat *physt = physt_ptr; 219 220 r92c_get_rx_stats(sc, rxs, desc, physt_ptr); 221 222 if (!sc->sc_ht40) { /* XXX center channel */ 223 rxs->r_flags |= IEEE80211_R_IEEE | IEEE80211_R_FREQ; 224 rxs->c_ieee = physt->chan; 225 rxs->c_freq = ieee80211_ieee2mhz(rxs->c_ieee, 226 IEEE80211_CHAN_2GHZ); 227 } 228 } 229