xref: /netbsd/sys/dev/ic/ath_netbsd.c (revision 6550d01e)
1 /*	$NetBSD: ath_netbsd.c,v 1.18 2011/01/21 17:46:19 dyoung Exp $ */
2 
3 /*-
4  * Copyright (c) 2003, 2004 David Young
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
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 
28 #include <sys/cdefs.h>
29 __KERNEL_RCSID(0, "$NetBSD: ath_netbsd.c,v 1.18 2011/01/21 17:46:19 dyoung Exp $");
30 
31 #include <sys/param.h>
32 #include <sys/types.h>
33 #include <sys/errno.h>
34 #include <sys/systm.h>
35 #include <sys/sysctl.h>
36 #include <sys/mbuf.h>
37 #include <sys/malloc.h>
38 #include <sys/kernel.h>
39 #include <sys/socket.h>
40 #include <sys/sockio.h>
41 #include <sys/sysctl.h>
42 #include <sys/callout.h>
43 #include <sys/bus.h>
44 #include <machine/stdarg.h>
45 #include <sys/endian.h>
46 #include <sys/device.h>
47 
48 #include <net/if.h>
49 #include <net/if_dl.h>
50 #include <net/if_media.h>
51 #include <net/if_arp.h>
52 #include <net/if_ether.h>
53 #include <net/if_llc.h>
54 
55 #include <net80211/ieee80211_netbsd.h>
56 #include <net80211/ieee80211_var.h>
57 #include <dev/ic/ath_netbsd.h>
58 #include <dev/ic/athvar.h>
59 
60 /*
61  * Setup sysctl(3) MIB, hw.ath.*.
62  *
63  * TBD condition CTLFLAG_PERMANENT on being a module or not
64  */
65 SYSCTL_SETUP(sysctl_ath, "sysctl ath subtree setup")
66 {
67 	int rc;
68 	const struct sysctlnode *cnode, *rnode;
69 
70 	if ((rnode = ath_sysctl_treetop(clog)) == NULL)
71 		return;
72 
73 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "dwell",
74 	    "channel dwell time (ms) for AP/station scanning",
75 	    dwelltime)) != 0)
76 		goto err;
77 
78 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "calibrate",
79 	    "chip calibration interval (secs)", calinterval)) != 0)
80 		goto err;
81 
82 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "outdoor",
83 	    "outdoor operation", outdoor)) != 0)
84 		goto err;
85 
86 	/* country code */
87 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE,
88 	    "countrycode", "country code", countrycode)) != 0)
89 		goto err;
90 
91 	/* regulatory domain */
92 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "regdomain",
93 	    "EEPROM regdomain code", regdomain)) != 0)
94 		goto err;
95 
96 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "debug",
97 	    "control debugging printfs", debug)) != 0)
98 		goto err;
99 
100 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READONLY, "rxbuf",
101 	    "rx buffers allocated", rxbuf)) != 0)
102 		goto err;
103 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READONLY, "txbuf",
104 	    "tx buffers allocated", txbuf)) != 0)
105 		goto err;
106 
107 	return;
108 err:
109 	printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc);
110 }
111 
112 static int
113 ath_sysctl_slottime(SYSCTLFN_ARGS)
114 {
115 	struct ath_softc *sc;
116 	struct sysctlnode node;
117 	u_int slottime;
118 	int error;
119 
120 	node = *rnode;
121 	sc = (struct ath_softc *)node.sysctl_data;
122 	slottime = ath_hal_getslottime(sc->sc_ah);
123 	node.sysctl_data = &slottime;
124 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
125 	if (error || newp == NULL)
126 		return error;
127 	return !ath_hal_setslottime(sc->sc_ah, slottime) ? EINVAL : 0;
128 }
129 
130 static int
131 ath_sysctl_acktimeout(SYSCTLFN_ARGS)
132 {
133 	struct ath_softc *sc;
134 	struct sysctlnode node;
135 	u_int acktimeout;
136 	int error;
137 
138 	node = *rnode;
139 	sc = (struct ath_softc *)node.sysctl_data;
140 	acktimeout = ath_hal_getacktimeout(sc->sc_ah);
141 	node.sysctl_data = &acktimeout;
142 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
143 	if (error || newp == NULL)
144 		return error;
145 	return !ath_hal_setacktimeout(sc->sc_ah, acktimeout) ? EINVAL : 0;
146 }
147 
148 static int
149 ath_sysctl_ctstimeout(SYSCTLFN_ARGS)
150 {
151 	struct ath_softc *sc;
152 	struct sysctlnode node;
153 	u_int ctstimeout;
154 	int error;
155 
156 	node = *rnode;
157 	sc = (struct ath_softc *)node.sysctl_data;
158 	ctstimeout = ath_hal_getctstimeout(sc->sc_ah);
159 	node.sysctl_data = &ctstimeout;
160 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
161 	if (error || newp == NULL)
162 		return error;
163 	return !ath_hal_setctstimeout(sc->sc_ah, ctstimeout) ? EINVAL : 0;
164 }
165 
166 static int
167 ath_sysctl_softled(SYSCTLFN_ARGS)
168 {
169 	struct ath_softc *sc;
170 	struct sysctlnode node;
171 	int softled;
172 	int error;
173 
174 	node = *rnode;
175 	sc = (struct ath_softc *)node.sysctl_data;
176 	softled = sc->sc_softled;
177 	node.sysctl_data = &softled;
178 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
179 	if (error || newp == NULL)
180 		return error;
181 	softled = (softled != 0);
182 	if (softled != sc->sc_softled) {
183 		if (softled) {
184 			/* NB: handle any sc_ledpin change */
185 			ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_ledpin);
186 			ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin,
187 				!sc->sc_ledon);
188 		}
189 		sc->sc_softled = softled;
190 	}
191 	return 0;
192 }
193 
194 static int
195 ath_sysctl_rxantenna(SYSCTLFN_ARGS)
196 {
197 	struct ath_softc *sc;
198 	struct sysctlnode node;
199 	u_int defantenna;
200 	int error;
201 
202 	node = *rnode;
203 	sc = (struct ath_softc *)node.sysctl_data;
204 	defantenna = ath_hal_getdefantenna(sc->sc_ah);
205 	node.sysctl_data = &defantenna;
206 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
207 	if (error || newp == NULL)
208 		return error;
209 	ath_hal_setdefantenna(sc->sc_ah, defantenna);
210 	return 0;
211 }
212 
213 static int
214 ath_sysctl_diversity(SYSCTLFN_ARGS)
215 {
216 	struct ath_softc *sc;
217 	struct sysctlnode node;
218 	u_int diversity;
219 	int error;
220 
221 	node = *rnode;
222 	sc = (struct ath_softc *)node.sysctl_data;
223 	diversity = sc->sc_diversity;
224 	node.sysctl_data = &diversity;
225 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
226 	if (error || newp == NULL)
227 		return error;
228 	if (!ath_hal_setdiversity(sc->sc_ah, diversity))
229 		return EINVAL;
230 	sc->sc_diversity = diversity;
231 	return 0;
232 }
233 
234 static int
235 ath_sysctl_diag(SYSCTLFN_ARGS)
236 {
237 	struct ath_softc *sc;
238 	struct sysctlnode node;
239 	u_int32_t diag;
240 	int error;
241 
242 	node = *rnode;
243 	sc = (struct ath_softc *)node.sysctl_data;
244 	if (!ath_hal_getdiag(sc->sc_ah, &diag))
245 		return EINVAL;
246 	node.sysctl_data = &diag;
247 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
248 	if (error || newp == NULL)
249 		return error;
250 	return !ath_hal_setdiag(sc->sc_ah, diag) ? EINVAL : 0;
251 }
252 
253 static int
254 ath_sysctl_tpscale(SYSCTLFN_ARGS)
255 {
256 	struct ath_softc *sc;
257 	struct sysctlnode node;
258 	u_int32_t scale;
259 	int error;
260 
261 	node = *rnode;
262 	sc = (struct ath_softc *)node.sysctl_data;
263 	(void)ath_hal_gettpscale(sc->sc_ah, &scale);
264 	node.sysctl_data = &scale;
265 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
266 	if (error || newp == NULL)
267 		return error;
268 	return !ath_hal_settpscale(sc->sc_ah, scale)
269 	    ? EINVAL
270 	    : ath_reset(&sc->sc_if);
271 }
272 
273 static int
274 ath_sysctl_tpc(SYSCTLFN_ARGS)
275 {
276 	struct ath_softc *sc;
277 	struct sysctlnode node;
278 	u_int tpc;
279 	int error;
280 
281 	node = *rnode;
282 	sc = (struct ath_softc *)node.sysctl_data;
283 	tpc = ath_hal_gettpc(sc->sc_ah);
284 	node.sysctl_data = &tpc;
285 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
286 	if (error || newp == NULL)
287 		return error;
288 	return !ath_hal_settpc(sc->sc_ah, tpc) ? EINVAL : 0;
289 }
290 
291 static int
292 ath_sysctl_rfkill(SYSCTLFN_ARGS)
293 {
294 	struct ath_softc *sc;
295 	struct sysctlnode node;
296 	u_int rfkill;
297 	int error;
298 
299 	node = *rnode;
300 	sc = (struct ath_softc *)node.sysctl_data;
301 	rfkill = ath_hal_getrfkill(sc->sc_ah);
302 	node.sysctl_data = &rfkill;
303 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
304 	if (error || newp == NULL)
305 		return error;
306 	return !ath_hal_setrfkill(sc->sc_ah, rfkill) ? EINVAL : 0;
307 }
308 
309 static int
310 ath_sysctl_rfsilent(SYSCTLFN_ARGS)
311 {
312 	struct ath_softc *sc;
313 	struct sysctlnode node;
314 	u_int rfsilent;
315 	int error;
316 
317 	node = *rnode;
318 	sc = (struct ath_softc *)node.sysctl_data;
319 	(void)ath_hal_getrfsilent(sc->sc_ah, &rfsilent);
320 	node.sysctl_data = &rfsilent;
321 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
322 	if (error || newp == NULL)
323 		return error;
324 	return !ath_hal_setrfsilent(sc->sc_ah, rfsilent) ? EINVAL : 0;
325 }
326 
327 static int
328 ath_sysctl_regdomain(SYSCTLFN_ARGS)
329 {
330 	struct ath_softc *sc;
331 	struct sysctlnode node;
332 	u_int32_t rd;
333 	int error;
334 
335 	node = *rnode;
336 	sc = (struct ath_softc *)node.sysctl_data;
337 	if (!ath_hal_getregdomain(sc->sc_ah, &rd))
338 		return EINVAL;
339 	node.sysctl_data = &rd;
340 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
341 	if (error || newp == NULL)
342 		return error;
343 	return !ath_hal_setregdomain(sc->sc_ah, rd) ? EINVAL : 0;
344 }
345 
346 static int
347 ath_sysctl_tpack(SYSCTLFN_ARGS)
348 {
349 	struct ath_softc *sc;
350 	struct sysctlnode node;
351 	u_int32_t tpack;
352 	int error;
353 
354 	node = *rnode;
355 	sc = (struct ath_softc *)node.sysctl_data;
356 	(void)ath_hal_gettpack(sc->sc_ah, &tpack);
357 	node.sysctl_data = &tpack;
358 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
359 	if (error || newp == NULL)
360 		return error;
361 	return !ath_hal_settpack(sc->sc_ah, tpack) ? EINVAL : 0;
362 }
363 
364 static int
365 ath_sysctl_tpcts(SYSCTLFN_ARGS)
366 {
367 	struct ath_softc *sc;
368 	struct sysctlnode node;
369 	u_int32_t tpcts;
370 	int error;
371 
372 	node = *rnode;
373 	sc = (struct ath_softc *)node.sysctl_data;
374 	(void)ath_hal_gettpcts(sc->sc_ah, &tpcts);
375 	node.sysctl_data = &tpcts;
376 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
377 	if (error || newp == NULL)
378 		return error;
379 	return !ath_hal_settpcts(sc->sc_ah, tpcts) ? EINVAL : 0;
380 }
381 
382 const struct sysctlnode *
383 ath_sysctl_instance(const char *dvname, struct sysctllog **log)
384 {
385 	int rc;
386 	const struct sysctlnode *rnode;
387 
388 	if ((rc = sysctl_createv(log, 0, NULL, &rnode,
389 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL,
390 	    NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0)
391 		goto err;
392 
393 	if ((rc = sysctl_createv(log, 0, &rnode, &rnode,
394 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, dvname,
395 	    SYSCTL_DESCR("ath information and options"),
396 	    NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0)
397 		goto err;
398 
399 	return rnode;
400 err:
401 	printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc);
402 	return NULL;
403 }
404 
405 const struct sysctlnode *
406 ath_sysctl_treetop(struct sysctllog **log)
407 {
408 	int rc;
409 	const struct sysctlnode *rnode;
410 
411 	if ((rc = sysctl_createv(log, 0, NULL, &rnode,
412 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL,
413 	    NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0)
414 		goto err;
415 
416 	if ((rc = sysctl_createv(log, 0, &rnode, &rnode,
417 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, "ath",
418 	    SYSCTL_DESCR("ath information and options"),
419 	    NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0)
420 		goto err;
421 
422 	return rnode;
423 err:
424 	printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc);
425 	return NULL;
426 }
427 
428 void
429 ath_sysctlattach(struct ath_softc *sc)
430 {
431 	int rc;
432 	struct sysctllog **log = &sc->sc_sysctllog;
433 	const struct sysctlnode *cnode, *rnode;
434 
435 	ath_hal_getcountrycode(sc->sc_ah, &sc->sc_countrycode);
436 	(void)ath_hal_getregdomain(sc->sc_ah, &sc->sc_regdomain);
437 	sc->sc_debug = ath_debug;
438 	sc->sc_txintrperiod = ATH_TXINTR_PERIOD;
439 
440 	if ((rnode = ath_sysctl_instance(device_xname(sc->sc_dev), log)) == NULL)
441 		return;
442 
443 	if ((rc = SYSCTL_INT(0, countrycode, "EEPROM country code")) != 0)
444 		goto err;
445 
446 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, debug,
447 	    "control debugging printfs")) != 0)
448 		goto err;
449 
450 #if 0
451 	/* channel dwell time (ms) for AP/station scanning */
452 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, dwell,
453 	    "Channel dwell time (ms) for scanning")) != 0)
454 		goto err;
455 #endif
456 
457 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, slottime,
458 	    "802.11 slot time (us)")) != 0)
459 		goto err;
460 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, acktimeout,
461 	    "802.11 ACK timeout (us)")) != 0)
462 		goto err;
463 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, ctstimeout,
464 	    "802.11 CTS timeout (us)")) != 0)
465 		goto err;
466 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, softled,
467 	    "enable/disable software LED support")) != 0)
468 		goto err;
469 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, ledpin,
470 	    "GPIO pin connected to LED")) != 0)
471 		goto err;
472 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, ledon,
473 	    "setting to turn LED on")) != 0)
474 		goto err;
475 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, ledidle,
476 	    "idle time for inactivity LED (ticks)")) != 0)
477 		goto err;
478 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, txantenna,
479 	    "tx antenna (0=auto)")) != 0)
480 		goto err;
481 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, rxantenna,
482 	    "default/rx antenna")) != 0)
483 		goto err;
484 	if (ath_hal_hasdiversity(sc->sc_ah)) {
485 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, diversity,
486 		    "antenna diversity")) != 0)
487 			goto err;
488 	}
489 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, txintrperiod,
490 	    "tx descriptor batching")) != 0)
491 		goto err;
492 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, diag,
493 	    "h/w diagnostic control")) != 0)
494 		goto err;
495 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, tpscale,
496 	    "tx power scaling")) != 0)
497 		goto err;
498 	if (ath_hal_hastpc(sc->sc_ah)) {
499 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, tpc,
500 		    "enable/disable per-packet TPC")) != 0)
501 			goto err;
502 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, tpack,
503 		    "tx power for ack frames")) != 0)
504 			goto err;
505 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, tpcts,
506 		    "tx power for cts frames")) != 0)
507 			goto err;
508 	}
509 	if (ath_hal_hasrfsilent(sc->sc_ah)) {
510 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, rfsilent,
511 		    "h/w RF silent config")) != 0)
512 			goto err;
513 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, rfkill,
514 		    "enable/disable RF kill switch")) != 0)
515 			goto err;
516 	}
517 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, regdomain,
518 	    "EEPROM regdomain code")) != 0)
519 		goto err;
520 	return;
521 err:
522 	printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc);
523 }
524