sys/dev/rtwn/rtl8192c/r92c_rom.c

   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
  47 #include <dev/rtwn/if_rtwnreg.h>
  48 #include <dev/rtwn/if_rtwnvar.h>
  49
  50 #include <dev/rtwn/if_rtwn_debug.h>
  51 #include <dev/rtwn/if_rtwn_efuse.h>
  52
  53 #include <dev/rtwn/rtl8192c/r92c.h>
  54 #include <dev/rtwn/rtl8192c/r92c_priv.h>
  55 #include <dev/rtwn/rtl8192c/r92c_var.h>
  56 #include <dev/rtwn/rtl8192c/r92c_rom_image.h>
  57
  58 static void
  59 r92c_set_chains(struct rtwn_softc *sc)
  60 {
  61         struct r92c_softc *rs = sc->sc_priv;
  62
  63         if (rs->chip & R92C_CHIP_92C) {
  64                 sc->ntxchains = (rs->chip & R92C_CHIP_92C_1T2R) ? 1 : 2;
  65                 sc->nrxchains = 2;
  66         } else {
  67                 sc->ntxchains = 1;
  68                 sc->nrxchains = 1;
  69         }
  70 }
  71
  72 void
  73 r92c_efuse_postread(struct rtwn_softc *sc)
  74 {
  75         struct r92c_softc *rs = sc->sc_priv;
  76
  77         /* XXX Weird but this is what the vendor driver does. */
  78         sc->next_rom_addr = 0x1fa;
  79         (void) rtwn_efuse_read_next(sc, &rs->pa_setting);
  80         RTWN_DPRINTF(sc, RTWN_DEBUG_ROM, "%s: PA setting=0x%x\n", __func__,
  81             rs->pa_setting);
  82 }
  83
  84 void
  85 r92c_parse_rom(struct rtwn_softc *sc, uint8_t *buf)
  86 {
  87         struct r92c_softc *rs = sc->sc_priv;
  88         struct rtwn_r92c_txpwr *rt = rs->rs_txpwr;
  89         struct r92c_rom *rom = (struct r92c_rom *)buf;
  90         int i, j;
  91
  92         rs->board_type = MS(rom->rf_opt1, R92C_ROM_RF1_BOARD_TYPE);
  93         rs->regulatory = MS(rom->rf_opt1, R92C_ROM_RF1_REGULATORY);
  94         RTWN_DPRINTF(sc, RTWN_DEBUG_ROM, "%s: regulatory type=%d\n",
  95             __func__, rs->regulatory);
  96
  97         /* Need to be set before postinit() (but after preinit()). */
  98         rtwn_r92c_set_rom_opts(sc, buf);
  99         r92c_set_chains(sc);
 100
 101         for (j = 0; j < R92C_GROUP_2G; j++) {
 102                 for (i = 0; i < sc->ntxchains; i++) {
 103                         rt->cck_tx_pwr[i][j] = rom->cck_tx_pwr[i][j];
 104                         rt->ht40_1s_tx_pwr[i][j] = rom->ht40_1s_tx_pwr[i][j];
 105                 }
 106
 107                 rt->ht40_2s_tx_pwr_diff[0][j] =
 108                     MS(rom->ht40_2s_tx_pwr_diff[j], LOW_PART);
 109                 rt->ht20_tx_pwr_diff[0][j] =
 110                     RTWN_SIGN4TO8(MS(rom->ht20_tx_pwr_diff[j],
 111                         LOW_PART));
 112                 rt->ofdm_tx_pwr_diff[0][j] =
 113                     MS(rom->ofdm_tx_pwr_diff[j], LOW_PART);
 114                 rt->ht40_max_pwr[0][j] =
 115                     MS(rom->ht40_max_pwr[j], LOW_PART);
 116                 rt->ht20_max_pwr[0][j] =
 117                     MS(rom->ht20_max_pwr[j], LOW_PART);
 118
 119                 if (sc->ntxchains > 1) {
 120                         rt->ht40_2s_tx_pwr_diff[1][j] =
 121                             MS(rom->ht40_2s_tx_pwr_diff[j], HIGH_PART);
 122                         rt->ht20_tx_pwr_diff[1][j] =
 123                             RTWN_SIGN4TO8(MS(rom->ht20_tx_pwr_diff[j],
 124                                 HIGH_PART));
 125                         rt->ofdm_tx_pwr_diff[1][j] =
 126                             MS(rom->ofdm_tx_pwr_diff[j], HIGH_PART);
 127                         rt->ht40_max_pwr[1][j] =
 128                             MS(rom->ht40_max_pwr[j], HIGH_PART);
 129                         rt->ht20_max_pwr[1][j] =
 130                             MS(rom->ht20_max_pwr[j], HIGH_PART);
 131                 }
 132         }
 133
 134         sc->thermal_meter = MS(rom->thermal_meter, R92C_ROM_THERMAL_METER);
 135         if (sc->thermal_meter == R92C_ROM_THERMAL_METER_M)
 136                 sc->thermal_meter = 0xff;
 137         IEEE80211_ADDR_COPY(sc->sc_ic.ic_macaddr, rom->macaddr);
 138 }