sys/dev/rtwn/rtl8192e/r92e_rom.c

   1 /*-
   2  * Copyright (c) 2017 Kevin Lo <kevlo@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 __FBSDID("$FreeBSD$");
  29
  30 #include "opt_wlan.h"
  31
  32 #include <sys/param.h>
  33 #include <sys/lock.h>
  34 #include <sys/mutex.h>
  35 #include <sys/mbuf.h>
  36 #include <sys/kernel.h>
  37 #include <sys/socket.h>
  38 #include <sys/systm.h>
  39 #include <sys/malloc.h>
  40 #include <sys/queue.h>
  41 #include <sys/taskqueue.h>
  42 #include <sys/bus.h>
  43 #include <sys/endian.h>
  44 #include <sys/linker.h>
  45
  46 #include <net/if.h>
  47 #include <net/ethernet.h>
  48 #include <net/if_media.h>
  49
  50 #include <net80211/ieee80211_var.h>
  51 #include <net80211/ieee80211_radiotap.h>
  52
  53 #include <dev/rtwn/if_rtwnreg.h>
  54 #include <dev/rtwn/if_rtwnvar.h>
  55
  56 #include <dev/rtwn/if_rtwn_debug.h>
  57
  58 #include <dev/rtwn/rtl8192e/r92e.h>
  59 #include <dev/rtwn/rtl8192e/r92e_var.h>
  60 #include <dev/rtwn/rtl8192e/r92e_rom_image.h>
  61
  62 void
  63 r92e_parse_rom(struct rtwn_softc *sc, uint8_t *buf)
  64 {
  65         struct r92e_softc *rs = sc->sc_priv;
  66         struct r92e_rom *rom = (struct r92e_rom *)buf;
  67         uint8_t pwr_diff;
  68         int i, j, k;
  69
  70         sc->thermal_meter = rom->thermal_meter;
  71         rs->crystalcap = RTWN_GET_ROM_VAR(rom->crystalcap,
  72             R92E_ROM_CRYSTALCAP_DEF);
  73
  74         for (i = 0; i < sc->ntxchains; i++) {
  75                 struct r92e_tx_pwr_2g *pwr_2g = &rom->tx_pwr[i].pwr_2g;
  76                 struct r92e_tx_pwr_diff_2g *pwr_diff_2g =
  77                     &rom->tx_pwr[i].pwr_diff_2g;
  78
  79                 for (j = 0; j < R92E_GROUP_2G - 1; j++) {
  80                         rs->cck_tx_pwr[i][j] =
  81                             RTWN_GET_ROM_VAR(pwr_2g->cck[j],
  82                                 R92E_DEF_TX_PWR_2G);
  83                         rs->ht40_tx_pwr_2g[i][j] =
  84                             RTWN_GET_ROM_VAR(pwr_2g->ht40[j],
  85                                 R92E_DEF_TX_PWR_2G);
  86                 }
  87                 rs->cck_tx_pwr[i][j] = RTWN_GET_ROM_VAR(pwr_2g->cck[j],
  88                     R92E_DEF_TX_PWR_2G);
  89
  90                 rs->cck_tx_pwr_diff_2g[i][0] = 0;
  91                 rs->ofdm_tx_pwr_diff_2g[i][0] = RTWN_SIGN4TO8(
  92                     MS(pwr_diff_2g->ht20_ofdm, LOW_PART));
  93                 rs->bw20_tx_pwr_diff_2g[i][0] = RTWN_SIGN4TO8(
  94                     MS(pwr_diff_2g->ht20_ofdm, HIGH_PART));
  95                 rs->bw40_tx_pwr_diff_2g[i][0] = 0;
  96                 pwr_diff = RTWN_GET_ROM_VAR(pwr_diff_2g->ht20_ofdm,
  97                     R92E_DEF_TX_PWR_HT20_DIFF);
  98                 if (pwr_diff != R92E_DEF_TX_PWR_HT20_DIFF) {
  99                         rs->ofdm_tx_pwr_diff_2g[i][0] = RTWN_SIGN4TO8(
 100                             MS(pwr_diff_2g->ht20_ofdm, LOW_PART));
 101                         rs->bw20_tx_pwr_diff_2g[i][0] = RTWN_SIGN4TO8(
 102                             MS(pwr_diff_2g->ht20_ofdm, HIGH_PART));
 103                 } else {
 104                         rs->ofdm_tx_pwr_diff_2g[i][0] =
 105                         rs->bw20_tx_pwr_diff_2g[i][0] = pwr_diff;
 106                 }
 107
 108                 for (j = 1, k = 0; k < nitems(pwr_diff_2g->diff123); j++, k++) {
 109                         pwr_diff = RTWN_GET_ROM_VAR(
 110                             pwr_diff_2g->diff123[k].ofdm_cck,
 111                             R92E_DEF_TX_PWR_DIFF);
 112                         if (pwr_diff != R92E_DEF_TX_PWR_DIFF) {
 113                                 rs->cck_tx_pwr_diff_2g[i][j] = RTWN_SIGN4TO8(
 114                                     MS(pwr_diff_2g->diff123[k].ofdm_cck,
 115                                     LOW_PART));
 116                                 rs->ofdm_tx_pwr_diff_2g[i][j] = RTWN_SIGN4TO8(
 117                                     MS(pwr_diff_2g->diff123[k].ofdm_cck,
 118                                     HIGH_PART));
 119                         } else {
 120                                 rs->cck_tx_pwr_diff_2g[i][j] =
 121                                 rs->ofdm_tx_pwr_diff_2g[i][j] = pwr_diff;
 122                         }
 123                         pwr_diff = RTWN_GET_ROM_VAR(
 124                             pwr_diff_2g->diff123[k].ht40_ht20,
 125                             R92E_DEF_TX_PWR_DIFF);
 126                         if (pwr_diff != R92E_DEF_TX_PWR_DIFF) {
 127                                 rs->bw20_tx_pwr_diff_2g[i][j] = RTWN_SIGN4TO8(
 128                                     MS(pwr_diff_2g->diff123[k].ht40_ht20,
 129                                     LOW_PART));
 130                                 rs->bw40_tx_pwr_diff_2g[i][j] = RTWN_SIGN4TO8(
 131                                     MS(pwr_diff_2g->diff123[k].ht40_ht20,
 132                                     HIGH_PART));
 133                         } else {
 134                                 rs->bw20_tx_pwr_diff_2g[i][j] =
 135                                 rs->bw40_tx_pwr_diff_2g[i][j] = pwr_diff;
 136                         }
 137                 }
 138         }
 139
 140         rs->regulatory = MS(rom->rf_board_opt, R92C_ROM_RF1_REGULATORY);
 141
 142         /* Read MAC address. */
 143         IEEE80211_ADDR_COPY(sc->sc_ic.ic_macaddr, rom->macaddr);
 144 }