r88e_fw.c

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    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 
   52 #include <dev/rtwn/rtl8188e/r88e.h>
   53 #include <dev/rtwn/rtl8188e/r88e_reg.h>
   54 #include <dev/rtwn/rtl8188e/r88e_fw_cmd.h>
   55 
   56 #ifndef RTWN_WITHOUT_UCODE
   57 int
   58 r88e_fw_cmd(struct rtwn_softc *sc, uint8_t id, const void *buf, int len)
   59 {
   60         struct r88e_fw_cmd cmd;
   61         int ntries, error;
   62 
   63         if (!(sc->sc_flags & RTWN_FW_LOADED)) {
   64                 RTWN_DPRINTF(sc, RTWN_DEBUG_FIRMWARE, "%s: firmware "
   65                     "was not loaded; command (id %d) will be discarded\n",
   66                     __func__, id);
   67                 return (0);
   68         }
   69 
   70         /* Wait for current FW box to be empty. */
   71         for (ntries = 0; ntries < 100; ntries++) {
   72                 if (!(rtwn_read_1(sc, R92C_HMETFR) & (1 << sc->fwcur)))
   73                         break;
   74                 rtwn_delay(sc, 2000);
   75         }
   76         if (ntries == 100) {
   77                 device_printf(sc->sc_dev,
   78                     "could not send firmware command\n");
   79                 return (ETIMEDOUT);
   80         }
   81         memset(&cmd, 0, sizeof(cmd));
   82         cmd.id = id;
   83         KASSERT(len <= sizeof(cmd.msg),
   84             ("%s: firmware command too long (%d > %zu)\n",
   85             __func__, len, sizeof(cmd.msg)));
   86         memcpy(cmd.msg, buf, len);
   87 
   88         /* Write the first word last since that will trigger the FW. */
   89         if (len > 3) {
   90                 error = rtwn_write_4(sc, R88E_HMEBOX_EXT(sc->fwcur),
   91                     *(uint32_t *)((uint8_t *)&cmd + 4));
   92                 if (error != 0)
   93                         return (error);
   94         }
   95         error = rtwn_write_4(sc, R92C_HMEBOX(sc->fwcur), *(uint32_t *)&cmd);
   96         if (error != 0)
   97                 return (error);
   98 
   99         sc->fwcur = (sc->fwcur + 1) % R92C_H2C_NBOX;
  100 
  101         return (0);
  102 }
  103 
  104 void
  105 r88e_fw_reset(struct rtwn_softc *sc, int reason)
  106 {
  107         uint16_t reg;
  108 
  109         reg = rtwn_read_2(sc, R92C_SYS_FUNC_EN);
  110         rtwn_write_2(sc, R92C_SYS_FUNC_EN, reg & ~R92C_SYS_FUNC_EN_CPUEN);
  111 
  112         if (reason != RTWN_FW_RESET_SHUTDOWN) {
  113                 rtwn_write_2(sc, R92C_SYS_FUNC_EN,
  114                     reg | R92C_SYS_FUNC_EN_CPUEN);
  115         }
  116 }
  117 
  118 void
  119 r88e_fw_download_enable(struct rtwn_softc *sc, int enable)
  120 {
  121         if (enable) {
  122                 /* MCU firmware download enable. */
  123                 rtwn_setbits_1(sc, R92C_MCUFWDL, 0, R92C_MCUFWDL_EN);
  124                 /* 8051 reset. */
  125                 rtwn_setbits_1_shift(sc, R92C_MCUFWDL, R92C_MCUFWDL_ROM_DLEN,
  126                     0, 2);
  127         } else {
  128                 /* MCU download disable. */
  129                 rtwn_setbits_1(sc, R92C_MCUFWDL, R92C_MCUFWDL_EN, 0);
  130                 /* Reserved for f/w extension. */
  131                 rtwn_write_1(sc, R92C_MCUFWDL + 1, 0);
  132         }
  133 }
  134 #endif
  135 
  136 void
  137 r88e_macid_enable_link(struct rtwn_softc *sc, int id, int enable)
  138 {
  139         uint32_t reg;
  140 
  141         reg = R88E_MACID_NO_LINK;
  142         if (id > 32)
  143                 reg += 4;
  144 
  145         if (enable)
  146                 rtwn_setbits_4(sc, reg, 1 << (id % 32), 0);
  147         else
  148                 rtwn_setbits_4(sc, reg, 0, 1 << (id % 32));
  149 
  150         /* XXX max macid for tx reports */
  151 }
  152 
  153 void
  154 r88e_set_media_status(struct rtwn_softc *sc, int macid)
  155 {
  156         struct r88e_fw_cmd_msrrpt status;
  157 
  158         if (macid & RTWN_MACID_VALID)
  159                 status.msrb0 = R88E_MSRRPT_B0_ASSOC;
  160         else
  161                 status.msrb0 = R88E_MSRRPT_B0_DISASSOC;
  162         status.macid = (macid & ~RTWN_MACID_VALID);
  163 
  164         r88e_macid_enable_link(sc, status.macid,
  165             (macid & RTWN_MACID_VALID) != 0);
  166 
  167 #ifndef RTWN_WITHOUT_UCODE
  168         if (r88e_fw_cmd(sc, R88E_CMD_MSR_RPT, &status, sizeof(status)) != 0) {
  169                 device_printf(sc->sc_dev, "%s: cannot change media status!\n",
  170                     __func__);
  171         }
  172 #endif
  173 }
  174 
  175 #ifndef RTWN_WITHOUT_UCODE
  176 int
  177 r88e_set_rsvd_page(struct rtwn_softc *sc, int probe_resp, int null,
  178     int qos_null)
  179 {
  180         struct r88e_fw_cmd_rsvdpage rsvd;
  181 
  182         rsvd.probe_resp = probe_resp;
  183         rsvd.ps_poll = 0;
  184         rsvd.null_data = null;
  185         rsvd.null_data_qos = qos_null;
  186         rsvd.null_data_qos_bt = 0;
  187         return (r88e_fw_cmd(sc, R88E_CMD_RSVD_PAGE, &rsvd, sizeof(rsvd)));
  188 }
  189 
  190 int
  191 r88e_set_pwrmode(struct rtwn_softc *sc, struct ieee80211vap *vap,
  192     int off)
  193 {
  194         struct r88e_fw_cmd_pwrmode mode;
  195         int error;
  196 
  197         if (off && vap->iv_state == IEEE80211_S_RUN &&
  198             (vap->iv_flags & IEEE80211_F_PMGTON)) {
  199                 mode.mode = R88E_PWRMODE_LEG;
  200                 /*
  201                  * TODO: switch to RFOFF state
  202                  * (something is missing here - Rx stops with it).
  203                  */
  204 #ifdef RTWN_TODO
  205                 mode.pwr_state = R88E_PWRMODE_STATE_RFOFF;
  206 #else
  207                 mode.pwr_state = R88E_PWRMODE_STATE_RFON;
  208 #endif
  209         } else {
  210                 mode.mode = R88E_PWRMODE_CAM;
  211                 mode.pwr_state = R88E_PWRMODE_STATE_ALLON;
  212         }
  213         mode.pwrb1 =
  214             SM(R88E_PWRMODE_B1_SMART_PS, R88E_PWRMODE_B1_LEG_NULLDATA) |
  215             SM(R88E_PWRMODE_B1_RLBM, R88E_PWRMODE_B1_MODE_MIN);
  216         /* XXX ignored */
  217         mode.bcn_pass = 0;
  218         mode.queue_uapsd = 0;
  219         error = r88e_fw_cmd(sc, R88E_CMD_SET_PWRMODE, &mode, sizeof(mode));
  220         if (error != 0) {
  221                 device_printf(sc->sc_dev,
  222                     "%s: CMD_SET_PWRMODE was not sent, error %d\n",
  223                     __func__, error);
  224         }
  225 
  226         return (error);
  227 }
  228 #endif

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FreeBSD/Linux Kernel Cross Reference sys/dev/rtwn/rtl8188e/r88e_fw.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/rtwn/rtl8188e/r88e_fw.c