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ath_netbsd.c revision 1.2
      1 /*-
      2  * Copyright (c) 2003, 2004 David Young
      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  * 3. The name of the author may not be used to endorse or promote products
     14  *    derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 #include <sys/param.h>
     28 #include <sys/types.h>
     29 #include <sys/errno.h>
     30 #include <sys/systm.h>
     31 #include <sys/sysctl.h>
     32 #include <sys/mbuf.h>
     33 #include <sys/malloc.h>
     34 #include <sys/lock.h>
     35 #include <sys/kernel.h>
     36 #include <sys/socket.h>
     37 #include <sys/sockio.h>
     38 #include <sys/sysctl.h>
     39 #include <sys/callout.h>
     40 #include <machine/bus.h>
     41 #include <machine/stdarg.h>
     42 #include <sys/endian.h>
     43 #include <sys/device.h>
     44 
     45 #include <net/if.h>
     46 #include <net/if_dl.h>
     47 #include <net/if_media.h>
     48 #include <net/if_arp.h>
     49 #include <net/if_ether.h>
     50 #include <net/if_llc.h>
     51 
     52 #include <net80211/ieee80211_netbsd.h>
     53 #include <net80211/ieee80211_var.h>
     54 #include <dev/ic/ath_netbsd.h>
     55 #include <dev/ic/athvar.h>
     56 
     57 void
     58 device_printf(struct device dv, const char *fmt, ...)
     59 {
     60         va_list ap;
     61 
     62         va_start(ap, fmt);
     63         printf("%s: ", dv.dv_xname);
     64         vprintf(fmt, ap);
     65         va_end(ap);
     66 	return;
     67 }
     68 
     69 struct mbuf *
     70 m_defrag(struct mbuf *m0, int flags)
     71 {
     72 	struct mbuf *m;
     73 	MGETHDR(m, flags, MT_DATA);
     74 	if (m == NULL)
     75 		return NULL;
     76 
     77 	M_COPY_PKTHDR(m, m0);
     78 	MCLGET(m, flags);
     79 	if ((m->m_flags & M_EXT) == 0) {
     80 		m_free(m);
     81 		return NULL;
     82 	}
     83 	m_copydata(m0, 0, m0->m_pkthdr.len, mtod(m, caddr_t));
     84 	m->m_len = m->m_pkthdr.len;
     85 	return m;
     86 }
     87 
     88 /*
     89  * Setup sysctl(3) MIB, ath.*.
     90  *
     91  * TBD condition CTLFLAG_PERMANENT on being an LKM or not
     92  */
     93 SYSCTL_SETUP(sysctl_ath, "sysctl ath subtree setup")
     94 {
     95 	int rc;
     96 	const struct sysctlnode *cnode, *rnode;
     97 
     98 	if ((rnode = ath_sysctl_treetop(clog)) == NULL)
     99 		return;
    100 
    101 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "dwell",
    102 	    "channel dwell time (ms) for AP/station scanning",
    103 	    dwelltime)) != 0)
    104 		goto err;
    105 
    106 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "calibrate",
    107 	    "chip calibration interval (secs)", calinterval)) != 0)
    108 		goto err;
    109 
    110 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "outdoor",
    111 	    "outdoor operation", outdoor)) != 0)
    112 		goto err;
    113 
    114 	/* country code */
    115 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE,
    116 	    "countrycode", "country code", countrycode)) != 0)
    117 		goto err;
    118 
    119 	/* regulatory domain */
    120 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READONLY, "regdomain",
    121 	    "regulatory domain", regdomain)) != 0)
    122 		goto err;
    123 
    124 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "debug",
    125 	    "control debugging printfs", debug)) != 0)
    126 		goto err;
    127 
    128 	return;
    129 err:
    130 	printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc);
    131 }
    132 
    133 static int
    134 ath_sysctl_slottime(SYSCTLFN_ARGS)
    135 {
    136 	struct ath_softc *sc;
    137 	struct sysctlnode node;
    138 	u_int slottime;
    139 	int error;
    140 
    141 	node = *rnode;
    142 	sc = (struct ath_softc *)node.sysctl_data;
    143 	slottime = ath_hal_getslottime(sc->sc_ah);
    144 	node.sysctl_data = &slottime;
    145 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    146 	if (error || newp == NULL)
    147 		return error;
    148 	return !ath_hal_setslottime(sc->sc_ah, slottime) ? EINVAL : 0;
    149 }
    150 
    151 static int
    152 ath_sysctl_acktimeout(SYSCTLFN_ARGS)
    153 {
    154 	struct ath_softc *sc;
    155 	struct sysctlnode node;
    156 	u_int acktimeout;
    157 	int error;
    158 
    159 	node = *rnode;
    160 	sc = (struct ath_softc *)node.sysctl_data;
    161 	acktimeout = ath_hal_getacktimeout(sc->sc_ah);
    162 	node.sysctl_data = &acktimeout;
    163 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    164 	if (error || newp == NULL)
    165 		return error;
    166 	return !ath_hal_setacktimeout(sc->sc_ah, acktimeout) ? EINVAL : 0;
    167 }
    168 
    169 static int
    170 ath_sysctl_ctstimeout(SYSCTLFN_ARGS)
    171 {
    172 	struct ath_softc *sc;
    173 	struct sysctlnode node;
    174 	u_int ctstimeout;
    175 	int error;
    176 
    177 	node = *rnode;
    178 	sc = (struct ath_softc *)node.sysctl_data;
    179 	ctstimeout = ath_hal_getctstimeout(sc->sc_ah);
    180 	node.sysctl_data = &ctstimeout;
    181 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    182 	if (error || newp == NULL)
    183 		return error;
    184 	return !ath_hal_setctstimeout(sc->sc_ah, ctstimeout) ? EINVAL : 0;
    185 }
    186 
    187 static int
    188 ath_sysctl_softled(SYSCTLFN_ARGS)
    189 {
    190 	struct ath_softc *sc;
    191 	struct sysctlnode node;
    192 	int softled;
    193 	int error;
    194 
    195 	node = *rnode;
    196 	sc = (struct ath_softc *)node.sysctl_data;
    197 	softled = sc->sc_softled;
    198 	node.sysctl_data = &softled;
    199 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    200 	if (error || newp == NULL)
    201 		return error;
    202 	softled = (softled != 0);
    203 	if (softled != sc->sc_softled) {
    204 		if (softled) {
    205 			/* NB: handle any sc_ledpin change */
    206 			ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_ledpin);
    207 			ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin,
    208 				!sc->sc_ledon);
    209 		}
    210 		sc->sc_softled = softled;
    211 	}
    212 	return 0;
    213 }
    214 
    215 static int
    216 ath_sysctl_rxantenna(SYSCTLFN_ARGS)
    217 {
    218 	struct ath_softc *sc;
    219 	struct sysctlnode node;
    220 	u_int defantenna;
    221 	int error;
    222 
    223 	node = *rnode;
    224 	sc = (struct ath_softc *)node.sysctl_data;
    225 	defantenna = ath_hal_getdefantenna(sc->sc_ah);
    226 	node.sysctl_data = &defantenna;
    227 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    228 	if (error || newp == NULL)
    229 		return error;
    230 	ath_hal_setdefantenna(sc->sc_ah, defantenna);
    231 	return 0;
    232 }
    233 
    234 static int
    235 ath_sysctl_diversity(SYSCTLFN_ARGS)
    236 {
    237 	struct ath_softc *sc;
    238 	struct sysctlnode node;
    239 	u_int diversity;
    240 	int error;
    241 
    242 	node = *rnode;
    243 	sc = (struct ath_softc *)node.sysctl_data;
    244 	diversity = sc->sc_diversity;
    245 	node.sysctl_data = &diversity;
    246 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    247 	if (error || newp == NULL)
    248 		return error;
    249 	if (!ath_hal_setdiversity(sc->sc_ah, diversity))
    250 		return EINVAL;
    251 	sc->sc_diversity = diversity;
    252 	return 0;
    253 }
    254 
    255 static int
    256 ath_sysctl_diag(SYSCTLFN_ARGS)
    257 {
    258 	struct ath_softc *sc;
    259 	struct sysctlnode node;
    260 	u_int32_t diag;
    261 	int error;
    262 
    263 	node = *rnode;
    264 	sc = (struct ath_softc *)node.sysctl_data;
    265 	if (!ath_hal_getdiag(sc->sc_ah, &diag))
    266 		return EINVAL;
    267 	node.sysctl_data = &diag;
    268 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    269 	if (error || newp == NULL)
    270 		return error;
    271 	return !ath_hal_setdiag(sc->sc_ah, diag) ? EINVAL : 0;
    272 }
    273 
    274 static int
    275 ath_sysctl_tpscale(SYSCTLFN_ARGS)
    276 {
    277 	struct ath_softc *sc;
    278 	struct sysctlnode node;
    279 	u_int32_t scale;
    280 	int error;
    281 
    282 	node = *rnode;
    283 	sc = (struct ath_softc *)node.sysctl_data;
    284 	ath_hal_gettpscale(sc->sc_ah, &scale);
    285 	node.sysctl_data = &scale;
    286 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    287 	if (error || newp == NULL)
    288 		return error;
    289 	return !ath_hal_settpscale(sc->sc_ah, scale)
    290 	    ? EINVAL
    291 	    : ath_reset(&sc->sc_if);
    292 }
    293 
    294 static int
    295 ath_sysctl_tpc(SYSCTLFN_ARGS)
    296 {
    297 	struct ath_softc *sc;
    298 	struct sysctlnode node;
    299 	u_int tpc;
    300 	int error;
    301 
    302 	node = *rnode;
    303 	sc = (struct ath_softc *)node.sysctl_data;
    304 	tpc = ath_hal_gettpc(sc->sc_ah);
    305 	node.sysctl_data = &tpc;
    306 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    307 	if (error || newp == NULL)
    308 		return error;
    309 	return !ath_hal_settpc(sc->sc_ah, tpc) ? EINVAL : 0;
    310 }
    311 
    312 const struct sysctlnode *
    313 ath_sysctl_treetop(struct sysctllog **log)
    314 {
    315 	int rc;
    316 	const struct sysctlnode *rnode;
    317 
    318 	if ((rc = sysctl_createv(log, 0, NULL, &rnode,
    319 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL,
    320 	    NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0)
    321 		goto err;
    322 
    323 	if ((rc = sysctl_createv(log, 0, &rnode, &rnode,
    324 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, "ath",
    325 	    SYSCTL_DESCR("ath information and options"),
    326 	    NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0)
    327 		goto err;
    328 
    329 	return rnode;
    330 err:
    331 	printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc);
    332 	return NULL;
    333 }
    334 
    335 void
    336 ath_sysctlattach(struct ath_softc *sc)
    337 {
    338 	int rc;
    339 	struct sysctllog **log = &sc->sc_sysctllog;
    340 	const struct sysctlnode *cnode, *rnode;
    341 
    342 	ath_hal_getcountrycode(sc->sc_ah, &sc->sc_countrycode);
    343 	ath_hal_getregdomain(sc->sc_ah, &sc->sc_regdomain);
    344 	sc->sc_debug = ath_debug;
    345 	sc->sc_txintrperiod = ATH_TXINTR_PERIOD;
    346 
    347 	if ((rnode = ath_sysctl_treetop(NULL)) == NULL)
    348 		return;
    349 
    350 	if ((rc = SYSCTL_INT(0, countrycode, "EEPROM country code")) != 0)
    351 		goto err;
    352 
    353 	if ((rc = SYSCTL_INT(0, regdomain, "EEPROM regdomain code")) != 0)
    354 		goto err;
    355 
    356 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, debug,
    357 	    "control debugging printfs")) != 0)
    358 		goto err;
    359 
    360 #if 0
    361 	/* channel dwell time (ms) for AP/station scanning */
    362 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, dwell,
    363 	    "Channel dwell time (ms) for scanning")) != 0)
    364 		goto err;
    365 #endif
    366 
    367 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, slottime,
    368 	    "802.11 slot time (us)")) != 0)
    369 		goto err;
    370 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, acktimeout,
    371 	    "802.11 ACK timeout (us)")) != 0)
    372 		goto err;
    373 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, ctstimeout,
    374 	    "802.11 CTS timeout (us)")) != 0)
    375 		goto err;
    376 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, softled,
    377 	    "enable/disable software LED support")) != 0)
    378 		goto err;
    379 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, ledpin,
    380 	    "GPIO pin connected to LED")) != 0)
    381 		goto err;
    382 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, ledon,
    383 	    "setting to turn LED on")) != 0)
    384 		goto err;
    385 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, ledidle,
    386 	    "idle time for inactivity LED (ticks)")) != 0)
    387 		goto err;
    388 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, txantenna,
    389 	    "tx antenna (0=auto)")) != 0)
    390 		goto err;
    391 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, rxantenna,
    392 	    "default/rx antenna")) != 0)
    393 		goto err;
    394 	if (sc->sc_hasdiversity) {
    395 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, diversity,
    396 		    "antenna diversity")) != 0)
    397 			goto err;
    398 	}
    399 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, txintrperiod,
    400 	    "tx descriptor batching")) != 0)
    401 		goto err;
    402 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, diag,
    403 	    "h/w diagnostic control")) != 0)
    404 		goto err;
    405 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, tpscale,
    406 	    "tx power scaling")) != 0)
    407 		goto err;
    408 	if (sc->sc_hastpc) {
    409 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, tpc,
    410 		    "enable/disable per-packet TPC")) != 0)
    411 			goto err;
    412 	}
    413 	return;
    414 err:
    415 	printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc);
    416 }
    417