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ath_netbsd.c revision 1.1
      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 
     44 #include <net/if.h>
     45 #include <net/if_dl.h>
     46 #include <net/if_media.h>
     47 #include <net/if_arp.h>
     48 #include <net/if_ether.h>
     49 #include <net/if_llc.h>
     50 
     51 #include <net80211/ieee80211_netbsd.h>
     52 #include <net80211/ieee80211_var.h>
     53 #include <dev/ic/ath_netbsd.h>
     54 #include <dev/ic/athvar.h>
     55 
     56 void
     57 device_printf(struct device dv, const char *fmt, ...)
     58 {
     59         va_list ap;
     60 
     61         va_start(ap, fmt);
     62         printf("%s: ", dv.dv_xname);
     63         vprintf(fmt, ap);
     64         va_end(ap);
     65 	return;
     66 }
     67 
     68 struct mbuf *
     69 m_defrag(struct mbuf *m0, int flags)
     70 {
     71 	struct mbuf *m;
     72 	MGETHDR(m, flags, MT_DATA);
     73 	if (m == NULL)
     74 		return NULL;
     75 
     76 	M_COPY_PKTHDR(m, m0);
     77 	MCLGET(m, flags);
     78 	if ((m->m_flags & M_EXT) == 0) {
     79 		m_free(m);
     80 		return NULL;
     81 	}
     82 	m_copydata(m0, 0, m0->m_pkthdr.len, mtod(m, caddr_t));
     83 	m->m_len = m->m_pkthdr.len;
     84 	return m;
     85 }
     86 
     87 /*
     88  * Setup sysctl(3) MIB, ath.*.
     89  *
     90  * TBD condition CTLFLAG_PERMANENT on being an LKM or not
     91  */
     92 SYSCTL_SETUP(sysctl_ath, "sysctl ath subtree setup")
     93 {
     94 	int rc;
     95 	const struct sysctlnode *cnode, *rnode;
     96 
     97 	if ((rnode = ath_sysctl_treetop(clog)) == NULL)
     98 		return;
     99 
    100 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "dwell",
    101 	    "channel dwell time (ms) for AP/station scanning",
    102 	    dwelltime)) != 0)
    103 		goto err;
    104 
    105 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "calibrate",
    106 	    "chip calibration interval (secs)", calinterval)) != 0)
    107 		goto err;
    108 
    109 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "outdoor",
    110 	    "outdoor operation", outdoor)) != 0)
    111 		goto err;
    112 
    113 	/* country code */
    114 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE,
    115 	    "countrycode", "country code", countrycode)) != 0)
    116 		goto err;
    117 
    118 	/* regulatory domain */
    119 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READONLY, "regdomain",
    120 	    "regulatory domain", regdomain)) != 0)
    121 		goto err;
    122 
    123 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "debug",
    124 	    "control debugging printfs", debug)) != 0)
    125 		goto err;
    126 
    127 	return;
    128 err:
    129 	printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc);
    130 }
    131 
    132 static int
    133 ath_sysctl_slottime(SYSCTLFN_ARGS)
    134 {
    135 	struct ath_softc *sc;
    136 	struct sysctlnode node;
    137 	u_int slottime;
    138 	int error;
    139 
    140 	node = *rnode;
    141 	sc = (struct ath_softc *)node.sysctl_data;
    142 	slottime = ath_hal_getslottime(sc->sc_ah);
    143 	node.sysctl_data = &slottime;
    144 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    145 	if (error || newp == NULL)
    146 		return error;
    147 	return !ath_hal_setslottime(sc->sc_ah, slottime) ? EINVAL : 0;
    148 }
    149 
    150 static int
    151 ath_sysctl_acktimeout(SYSCTLFN_ARGS)
    152 {
    153 	struct ath_softc *sc;
    154 	struct sysctlnode node;
    155 	u_int acktimeout;
    156 	int error;
    157 
    158 	node = *rnode;
    159 	sc = (struct ath_softc *)node.sysctl_data;
    160 	acktimeout = ath_hal_getacktimeout(sc->sc_ah);
    161 	node.sysctl_data = &acktimeout;
    162 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    163 	if (error || newp == NULL)
    164 		return error;
    165 	return !ath_hal_setacktimeout(sc->sc_ah, acktimeout) ? EINVAL : 0;
    166 }
    167 
    168 static int
    169 ath_sysctl_ctstimeout(SYSCTLFN_ARGS)
    170 {
    171 	struct ath_softc *sc;
    172 	struct sysctlnode node;
    173 	u_int ctstimeout;
    174 	int error;
    175 
    176 	node = *rnode;
    177 	sc = (struct ath_softc *)node.sysctl_data;
    178 	ctstimeout = ath_hal_getctstimeout(sc->sc_ah);
    179 	node.sysctl_data = &ctstimeout;
    180 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    181 	if (error || newp == NULL)
    182 		return error;
    183 	return !ath_hal_setctstimeout(sc->sc_ah, ctstimeout) ? EINVAL : 0;
    184 }
    185 
    186 static int
    187 ath_sysctl_softled(SYSCTLFN_ARGS)
    188 {
    189 	struct ath_softc *sc;
    190 	struct sysctlnode node;
    191 	int softled;
    192 	int error;
    193 
    194 	node = *rnode;
    195 	sc = (struct ath_softc *)node.sysctl_data;
    196 	softled = sc->sc_softled;
    197 	node.sysctl_data = &softled;
    198 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    199 	if (error || newp == NULL)
    200 		return error;
    201 	softled = (softled != 0);
    202 	if (softled != sc->sc_softled) {
    203 		if (softled) {
    204 			/* NB: handle any sc_ledpin change */
    205 			ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_ledpin);
    206 			ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin,
    207 				!sc->sc_ledon);
    208 		}
    209 		sc->sc_softled = softled;
    210 	}
    211 	return 0;
    212 }
    213 
    214 static int
    215 ath_sysctl_rxantenna(SYSCTLFN_ARGS)
    216 {
    217 	struct ath_softc *sc;
    218 	struct sysctlnode node;
    219 	u_int defantenna;
    220 	int error;
    221 
    222 	node = *rnode;
    223 	sc = (struct ath_softc *)node.sysctl_data;
    224 	defantenna = ath_hal_getdefantenna(sc->sc_ah);
    225 	node.sysctl_data = &defantenna;
    226 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    227 	if (error || newp == NULL)
    228 		return error;
    229 	ath_hal_setdefantenna(sc->sc_ah, defantenna);
    230 	return 0;
    231 }
    232 
    233 static int
    234 ath_sysctl_diversity(SYSCTLFN_ARGS)
    235 {
    236 	struct ath_softc *sc;
    237 	struct sysctlnode node;
    238 	u_int diversity;
    239 	int error;
    240 
    241 	node = *rnode;
    242 	sc = (struct ath_softc *)node.sysctl_data;
    243 	diversity = sc->sc_diversity;
    244 	node.sysctl_data = &diversity;
    245 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    246 	if (error || newp == NULL)
    247 		return error;
    248 	if (!ath_hal_setdiversity(sc->sc_ah, diversity))
    249 		return EINVAL;
    250 	sc->sc_diversity = diversity;
    251 	return 0;
    252 }
    253 
    254 static int
    255 ath_sysctl_diag(SYSCTLFN_ARGS)
    256 {
    257 	struct ath_softc *sc;
    258 	struct sysctlnode node;
    259 	u_int32_t diag;
    260 	int error;
    261 
    262 	node = *rnode;
    263 	sc = (struct ath_softc *)node.sysctl_data;
    264 	if (!ath_hal_getdiag(sc->sc_ah, &diag))
    265 		return EINVAL;
    266 	node.sysctl_data = &diag;
    267 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    268 	if (error || newp == NULL)
    269 		return error;
    270 	return !ath_hal_setdiag(sc->sc_ah, diag) ? EINVAL : 0;
    271 }
    272 
    273 static int
    274 ath_sysctl_tpscale(SYSCTLFN_ARGS)
    275 {
    276 	struct ath_softc *sc;
    277 	struct sysctlnode node;
    278 	u_int32_t scale;
    279 	int error;
    280 
    281 	node = *rnode;
    282 	sc = (struct ath_softc *)node.sysctl_data;
    283 	ath_hal_gettpscale(sc->sc_ah, &scale);
    284 	node.sysctl_data = &scale;
    285 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    286 	if (error || newp == NULL)
    287 		return error;
    288 	return !ath_hal_settpscale(sc->sc_ah, scale)
    289 	    ? EINVAL
    290 	    : ath_reset(&sc->sc_if);
    291 }
    292 
    293 static int
    294 ath_sysctl_tpc(SYSCTLFN_ARGS)
    295 {
    296 	struct ath_softc *sc;
    297 	struct sysctlnode node;
    298 	u_int tpc;
    299 	int error;
    300 
    301 	node = *rnode;
    302 	sc = (struct ath_softc *)node.sysctl_data;
    303 	tpc = ath_hal_gettpc(sc->sc_ah);
    304 	node.sysctl_data = &tpc;
    305 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    306 	if (error || newp == NULL)
    307 		return error;
    308 	return !ath_hal_settpc(sc->sc_ah, tpc) ? EINVAL : 0;
    309 }
    310 
    311 const struct sysctlnode *
    312 ath_sysctl_treetop(struct sysctllog **log)
    313 {
    314 	int rc;
    315 	const struct sysctlnode *rnode;
    316 
    317 	if ((rc = sysctl_createv(log, 0, NULL, &rnode,
    318 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL,
    319 	    NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0)
    320 		goto err;
    321 
    322 	if ((rc = sysctl_createv(log, 0, &rnode, &rnode,
    323 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, "ath",
    324 	    SYSCTL_DESCR("ath information and options"),
    325 	    NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0)
    326 		goto err;
    327 
    328 	return rnode;
    329 err:
    330 	printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc);
    331 	return NULL;
    332 }
    333 
    334 void
    335 ath_sysctlattach(struct ath_softc *sc)
    336 {
    337 	int rc;
    338 	struct sysctllog **log = &sc->sc_sysctllog;
    339 	const struct sysctlnode *cnode, *rnode;
    340 
    341 	ath_hal_getcountrycode(sc->sc_ah, &sc->sc_countrycode);
    342 	ath_hal_getregdomain(sc->sc_ah, &sc->sc_regdomain);
    343 	sc->sc_debug = ath_debug;
    344 	sc->sc_txintrperiod = ATH_TXINTR_PERIOD;
    345 
    346 	if ((rnode = ath_sysctl_treetop(NULL)) == NULL)
    347 		return;
    348 
    349 	if ((rc = SYSCTL_INT(0, countrycode, "EEPROM country code")) != 0)
    350 		goto err;
    351 
    352 	if ((rc = SYSCTL_INT(0, regdomain, "EEPROM regdomain code")) != 0)
    353 		goto err;
    354 
    355 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, debug,
    356 	    "control debugging printfs")) != 0)
    357 		goto err;
    358 
    359 #if 0
    360 	/* channel dwell time (ms) for AP/station scanning */
    361 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, dwell,
    362 	    "Channel dwell time (ms) for scanning")) != 0)
    363 		goto err;
    364 #endif
    365 
    366 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, slottime,
    367 	    "802.11 slot time (us)")) != 0)
    368 		goto err;
    369 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, acktimeout,
    370 	    "802.11 ACK timeout (us)")) != 0)
    371 		goto err;
    372 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, ctstimeout,
    373 	    "802.11 CTS timeout (us)")) != 0)
    374 		goto err;
    375 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, softled,
    376 	    "enable/disable software LED support")) != 0)
    377 		goto err;
    378 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, ledpin,
    379 	    "GPIO pin connected to LED")) != 0)
    380 		goto err;
    381 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, ledon,
    382 	    "setting to turn LED on")) != 0)
    383 		goto err;
    384 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, ledidle,
    385 	    "idle time for inactivity LED (ticks)")) != 0)
    386 		goto err;
    387 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, txantenna,
    388 	    "tx antenna (0=auto)")) != 0)
    389 		goto err;
    390 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, rxantenna,
    391 	    "default/rx antenna")) != 0)
    392 		goto err;
    393 	if (sc->sc_hasdiversity) {
    394 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, diversity,
    395 		    "antenna diversity")) != 0)
    396 			goto err;
    397 	}
    398 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, txintrperiod,
    399 	    "tx descriptor batching")) != 0)
    400 		goto err;
    401 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, diag,
    402 	    "h/w diagnostic control")) != 0)
    403 		goto err;
    404 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, tpscale,
    405 	    "tx power scaling")) != 0)
    406 		goto err;
    407 	if (sc->sc_hastpc) {
    408 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, tpc,
    409 		    "enable/disable per-packet TPC")) != 0)
    410 			goto err;
    411 	}
    412 	return;
    413 err:
    414 	printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc);
    415 }
    416