xref: /freebsd/sys/dev/rtwn/rtl8812a/r12a_chan.c (revision a8089ea5aee578e08acab2438e82fc9a9ae50ed8)
1 /*-
2  * Copyright (c) 2016 Andriy Voskoboinyk <avos@FreeBSD.org>
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  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 #include <sys/cdefs.h>
28 #include "opt_wlan.h"
29 
30 #include <sys/param.h>
31 #include <sys/lock.h>
32 #include <sys/mutex.h>
33 #include <sys/mbuf.h>
34 #include <sys/kernel.h>
35 #include <sys/socket.h>
36 #include <sys/systm.h>
37 #include <sys/malloc.h>
38 #include <sys/queue.h>
39 #include <sys/taskqueue.h>
40 #include <sys/bus.h>
41 #include <sys/endian.h>
42 #include <sys/linker.h>
43 
44 #include <net/if.h>
45 #include <net/ethernet.h>
46 #include <net/if_media.h>
47 
48 #include <net80211/ieee80211_var.h>
49 #include <net80211/ieee80211_radiotap.h>
50 
51 #include <dev/rtwn/if_rtwnreg.h>
52 #include <dev/rtwn/if_rtwnvar.h>
53 
54 #include <dev/rtwn/if_rtwn_debug.h>
55 #include <dev/rtwn/if_rtwn_ridx.h>
56 #include <dev/rtwn/if_rtwn_rx.h>
57 
58 #include <dev/rtwn/rtl8812a/r12a.h>
59 #include <dev/rtwn/rtl8812a/r12a_reg.h>
60 #include <dev/rtwn/rtl8812a/r12a_var.h>
61 
62 static void
63 r12a_write_txpower(struct rtwn_softc *sc, int chain,
64     struct ieee80211_channel *c, uint8_t power[RTWN_RIDX_COUNT])
65 {
66 
67 	if (IEEE80211_IS_CHAN_2GHZ(c)) {
68 		/* Write per-CCK rate Tx power. */
69 		rtwn_bb_write(sc, R12A_TXAGC_CCK11_1(chain),
70 		    SM(R12A_TXAGC_CCK1,  power[RTWN_RIDX_CCK1]) |
71 		    SM(R12A_TXAGC_CCK2,  power[RTWN_RIDX_CCK2]) |
72 		    SM(R12A_TXAGC_CCK55, power[RTWN_RIDX_CCK55]) |
73 		    SM(R12A_TXAGC_CCK11, power[RTWN_RIDX_CCK11]));
74 	}
75 
76 	/* Write per-OFDM rate Tx power. */
77 	rtwn_bb_write(sc, R12A_TXAGC_OFDM18_6(chain),
78 	    SM(R12A_TXAGC_OFDM06, power[RTWN_RIDX_OFDM6]) |
79 	    SM(R12A_TXAGC_OFDM09, power[RTWN_RIDX_OFDM9]) |
80 	    SM(R12A_TXAGC_OFDM12, power[RTWN_RIDX_OFDM12]) |
81 	    SM(R12A_TXAGC_OFDM18, power[RTWN_RIDX_OFDM18]));
82 	rtwn_bb_write(sc, R12A_TXAGC_OFDM54_24(chain),
83 	    SM(R12A_TXAGC_OFDM24, power[RTWN_RIDX_OFDM24]) |
84 	    SM(R12A_TXAGC_OFDM36, power[RTWN_RIDX_OFDM36]) |
85 	    SM(R12A_TXAGC_OFDM48, power[RTWN_RIDX_OFDM48]) |
86 	    SM(R12A_TXAGC_OFDM54, power[RTWN_RIDX_OFDM54]));
87 	/* Write per-MCS Tx power. */
88 	rtwn_bb_write(sc, R12A_TXAGC_MCS3_0(chain),
89 	    SM(R12A_TXAGC_MCS0, power[RTWN_RIDX_HT_MCS(0)]) |
90 	    SM(R12A_TXAGC_MCS1, power[RTWN_RIDX_HT_MCS(1)]) |
91 	    SM(R12A_TXAGC_MCS2, power[RTWN_RIDX_HT_MCS(2)]) |
92 	    SM(R12A_TXAGC_MCS3, power[RTWN_RIDX_HT_MCS(3)]));
93 	rtwn_bb_write(sc, R12A_TXAGC_MCS7_4(chain),
94 	    SM(R12A_TXAGC_MCS4, power[RTWN_RIDX_HT_MCS(4)]) |
95 	    SM(R12A_TXAGC_MCS5, power[RTWN_RIDX_HT_MCS(5)]) |
96 	    SM(R12A_TXAGC_MCS6, power[RTWN_RIDX_HT_MCS(6)]) |
97 	    SM(R12A_TXAGC_MCS7, power[RTWN_RIDX_HT_MCS(7)]));
98 	if (sc->ntxchains >= 2) {
99 		rtwn_bb_write(sc, R12A_TXAGC_MCS11_8(chain),
100 		    SM(R12A_TXAGC_MCS8,  power[RTWN_RIDX_HT_MCS(8)]) |
101 		    SM(R12A_TXAGC_MCS9,  power[RTWN_RIDX_HT_MCS(9)]) |
102 		    SM(R12A_TXAGC_MCS10, power[RTWN_RIDX_HT_MCS(10)]) |
103 		    SM(R12A_TXAGC_MCS11, power[RTWN_RIDX_HT_MCS(11)]));
104 		rtwn_bb_write(sc, R12A_TXAGC_MCS15_12(chain),
105 		    SM(R12A_TXAGC_MCS12, power[RTWN_RIDX_HT_MCS(12)]) |
106 		    SM(R12A_TXAGC_MCS13, power[RTWN_RIDX_HT_MCS(13)]) |
107 		    SM(R12A_TXAGC_MCS14, power[RTWN_RIDX_HT_MCS(14)]) |
108 		    SM(R12A_TXAGC_MCS15, power[RTWN_RIDX_HT_MCS(15)]));
109 	}
110 
111 	/* TODO: VHT rates */
112 }
113 
114 static int
115 r12a_get_power_group(struct rtwn_softc *sc, struct ieee80211_channel *c)
116 {
117 	uint8_t chan;
118 	int group;
119 
120 	chan = rtwn_chan2centieee(c);
121 	if (IEEE80211_IS_CHAN_2GHZ(c)) {
122 		if (chan <= 2)			group = 0;
123 		else if (chan <= 5)		group = 1;
124 		else if (chan <= 8)		group = 2;
125 		else if (chan <= 11)		group = 3;
126 		else if (chan <= 14)		group = 4;
127 		else {
128 			KASSERT(0, ("wrong 2GHz channel %d!\n", chan));
129 			return (-1);
130 		}
131 	} else if (IEEE80211_IS_CHAN_5GHZ(c)) {
132 		if (chan < 36)
133 			return (-1);
134 
135 		if (chan <= 42)			group = 0;
136 		else if (chan <= 48)		group = 1;
137 		else if (chan <= 58)		group = 2;
138 		else if (chan <= 64)		group = 3;
139 		else if (chan <= 106)		group = 4;
140 		else if (chan <= 114)		group = 5;
141 		else if (chan <= 122)		group = 6;
142 		else if (chan <= 130)		group = 7;
143 		else if (chan <= 138)		group = 8;
144 		else if (chan <= 144)		group = 9;
145 		else if (chan <= 155)		group = 10;
146 		else if (chan <= 161)		group = 11;
147 		else if (chan <= 171)		group = 12;
148 		else if (chan <= 177)		group = 13;
149 		else {
150 			KASSERT(0, ("wrong 5GHz channel %d!\n", chan));
151 			return (-1);
152 		}
153 	} else {
154 		KASSERT(0, ("wrong channel band (flags %08X)\n", c->ic_flags));
155 		return (-1);
156 	}
157 
158 	return (group);
159 }
160 
161 static void
162 r12a_get_txpower(struct rtwn_softc *sc, int chain,
163     struct ieee80211_channel *c, uint8_t power[RTWN_RIDX_COUNT])
164 {
165 	struct r12a_softc *rs = sc->sc_priv;
166 	int i, ridx, group, max_mcs;
167 
168 	/* Determine channel group. */
169 	group = r12a_get_power_group(sc, c);
170 	if (group == -1) {	/* shouldn't happen */
171 		device_printf(sc->sc_dev, "%s: incorrect channel\n", __func__);
172 		return;
173 	}
174 
175 	/* TODO: VHT rates. */
176 	max_mcs = RTWN_RIDX_HT_MCS(sc->ntxchains * 8 - 1);
177 
178 	/* XXX regulatory */
179 	/* XXX net80211 regulatory */
180 
181 	if (IEEE80211_IS_CHAN_2GHZ(c)) {
182 		for (ridx = RTWN_RIDX_CCK1; ridx <= RTWN_RIDX_CCK11; ridx++)
183 			power[ridx] = rs->cck_tx_pwr[chain][group];
184 		for (ridx = RTWN_RIDX_OFDM6; ridx <= max_mcs; ridx++)
185 			power[ridx] = rs->ht40_tx_pwr_2g[chain][group];
186 
187 		for (ridx = RTWN_RIDX_OFDM6; ridx <= RTWN_RIDX_OFDM54; ridx++)
188 			power[ridx] += rs->ofdm_tx_pwr_diff_2g[chain][0];
189 
190 		for (i = 0; i < sc->ntxchains; i++) {
191 			uint8_t min_mcs;
192 			uint8_t pwr_diff;
193 
194 #ifdef notyet
195 			if (IEEE80211_IS_CHAN_HT80(c)) {
196 				/* Vendor driver uses HT40 values here. */
197 				pwr_diff = rs->bw40_tx_pwr_diff_2g[chain][i];
198 			} else
199 #endif
200 			if (IEEE80211_IS_CHAN_HT40(c))
201 				pwr_diff = rs->bw40_tx_pwr_diff_2g[chain][i];
202 			else
203 				pwr_diff = rs->bw20_tx_pwr_diff_2g[chain][i];
204 
205 			min_mcs = RTWN_RIDX_HT_MCS(i * 8);
206 			for (ridx = min_mcs; ridx <= max_mcs; ridx++)
207 				power[ridx] += pwr_diff;
208 		}
209 	} else {	/* 5GHz */
210 		for (ridx = RTWN_RIDX_OFDM6; ridx <= max_mcs; ridx++)
211 			power[ridx] = rs->ht40_tx_pwr_5g[chain][group];
212 
213 		for (ridx = RTWN_RIDX_OFDM6; ridx <= RTWN_RIDX_OFDM54; ridx++)
214 			power[ridx] += rs->ofdm_tx_pwr_diff_5g[chain][0];
215 
216 		for (i = 0; i < sc->ntxchains; i++) {
217 			uint8_t min_mcs;
218 			uint8_t pwr_diff;
219 
220 #ifdef notyet
221 			if (IEEE80211_IS_CHAN_HT80(c)) {
222 				/* TODO: calculate base value. */
223 				pwr_diff = rs->bw80_tx_pwr_diff_5g[chain][i];
224 			} else
225 #endif
226 			if (IEEE80211_IS_CHAN_HT40(c))
227 				pwr_diff = rs->bw40_tx_pwr_diff_5g[chain][i];
228 			else
229 				pwr_diff = rs->bw20_tx_pwr_diff_5g[chain][i];
230 
231 			min_mcs = RTWN_RIDX_HT_MCS(i * 8);
232 			for (ridx = min_mcs; ridx <= max_mcs; ridx++)
233 				power[ridx] += pwr_diff;
234 		}
235 	}
236 
237 	/* Apply max limit. */
238 	for (ridx = RTWN_RIDX_CCK1; ridx <= max_mcs; ridx++) {
239 		if (power[ridx] > R92C_MAX_TX_PWR)
240 			power[ridx] = R92C_MAX_TX_PWR;
241 	}
242 
243 #ifdef RTWN_DEBUG
244 	if (sc->sc_debug & RTWN_DEBUG_TXPWR) {
245 		/* Dump per-rate Tx power values. */
246 		printf("Tx power for chain %d:\n", chain);
247 		for (ridx = RTWN_RIDX_CCK1; ridx <= max_mcs; ridx++)
248 			printf("Rate %d = %u\n", ridx, power[ridx]);
249 	}
250 #endif
251 }
252 
253 static void
254 r12a_set_txpower(struct rtwn_softc *sc, struct ieee80211_channel *c)
255 {
256 	uint8_t power[RTWN_RIDX_COUNT];
257 	int i;
258 
259 	for (i = 0; i < sc->ntxchains; i++) {
260 		memset(power, 0, sizeof(power));
261 		/* Compute per-rate Tx power values. */
262 		r12a_get_txpower(sc, i, c, power);
263 		/* Write per-rate Tx power values to hardware. */
264 		r12a_write_txpower(sc, i, c, power);
265 	}
266 }
267 
268 void
269 r12a_fix_spur(struct rtwn_softc *sc, struct ieee80211_channel *c)
270 {
271 	struct r12a_softc *rs = sc->sc_priv;
272 	uint16_t chan = rtwn_chan2centieee(c);
273 
274 	if (rs->chip & R12A_CHIP_C_CUT) {
275 		if (IEEE80211_IS_CHAN_HT40(c) && chan == 11) {
276 			rtwn_bb_setbits(sc, R12A_RFMOD, 0, 0xc00);
277 			rtwn_bb_setbits(sc, R12A_ADC_BUF_CLK, 0, 0x40000000);
278 		} else {
279 			rtwn_bb_setbits(sc, R12A_RFMOD, 0x400, 0x800);
280 
281 			if (!IEEE80211_IS_CHAN_HT40(c) &&	/* 20 MHz */
282 			    (chan == 13 || chan == 14)) {
283 				rtwn_bb_setbits(sc, R12A_RFMOD, 0, 0x300);
284 				rtwn_bb_setbits(sc, R12A_ADC_BUF_CLK,
285 				    0, 0x40000000);
286 			} else {	/* !80 Mhz */
287 				rtwn_bb_setbits(sc, R12A_RFMOD, 0x100, 0x200);
288 				rtwn_bb_setbits(sc, R12A_ADC_BUF_CLK,
289 				    0x40000000, 0);
290 			}
291 		}
292 	} else {
293 		/* Set ADC clock to 160M to resolve 2480 MHz spur. */
294 		if (!IEEE80211_IS_CHAN_HT40(c) &&	/* 20 MHz */
295 		    (chan == 13 || chan == 14))
296 			rtwn_bb_setbits(sc, R12A_RFMOD, 0, 0x300);
297 		else if (IEEE80211_IS_CHAN_2GHZ(c))
298 			rtwn_bb_setbits(sc, R12A_RFMOD, 0x100, 0x200);
299 	}
300 }
301 
302 static void
303 r12a_set_band(struct rtwn_softc *sc, struct ieee80211_channel *c)
304 {
305 	struct ieee80211com *ic = &sc->sc_ic;
306 	struct r12a_softc *rs = sc->sc_priv;
307 	uint32_t basicrates;
308 	uint8_t swing;
309 	int i;
310 
311 	/* Check if band was changed. */
312 	if ((sc->sc_flags & (RTWN_STARTED | RTWN_RUNNING)) !=
313 	    RTWN_STARTED && IEEE80211_IS_CHAN_5GHZ(c) ^
314 	    !(rtwn_read_1(sc, R12A_CCK_CHECK) & R12A_CCK_CHECK_5GHZ))
315 		return;
316 
317 	rtwn_get_rates(sc, ieee80211_get_suprates(ic, c), NULL, &basicrates,
318 	    NULL, 1);
319 	if (IEEE80211_IS_CHAN_2GHZ(c)) {
320 		rtwn_r12a_set_band_2ghz(sc, basicrates);
321 		swing = rs->tx_bbswing_2g;
322 	} else if (IEEE80211_IS_CHAN_5GHZ(c)) {
323 		rtwn_r12a_set_band_5ghz(sc, basicrates);
324 		swing = rs->tx_bbswing_5g;
325 	} else {
326 		KASSERT(0, ("wrong channel flags %08X\n", c->ic_flags));
327 		return;
328 	}
329 
330 	/* XXX PATH_B is set by vendor driver. */
331 	for (i = 0; i < 2; i++) {
332 		uint16_t val = 0;
333 
334 		switch ((swing >> i * 2) & 0x3) {
335 		case 0:
336 			val = 0x200;	/* 0 dB	*/
337 			break;
338 		case 1:
339 			val = 0x16a;	/* -3 dB */
340 			break;
341 		case 2:
342 			val = 0x101;	/* -6 dB */
343 			break;
344 		case 3:
345 			val = 0xb6;	/* -9 dB */
346 			break;
347 		}
348 
349 		rtwn_bb_setbits(sc, R12A_TX_SCALE(i), R12A_TX_SCALE_SWING_M,
350 		    val << R12A_TX_SCALE_SWING_S);
351 	}
352 }
353 
354 void
355 r12a_set_chan(struct rtwn_softc *sc, struct ieee80211_channel *c)
356 {
357 	uint32_t val;
358 	uint16_t chan;
359 	int i;
360 
361 	r12a_set_band(sc, c);
362 
363 	chan = rtwn_chan2centieee(c);
364 	if (36 <= chan && chan <= 48)
365 		val = 0x09280000;
366 	else if (50 <= chan && chan <= 64)
367 		val = 0x08a60000;
368 	else if (100 <= chan && chan <= 116)
369 		val = 0x08a40000;
370 	else if (118 <= chan)
371 		val = 0x08240000;
372 	else
373 		val = 0x12d40000;
374 
375 	rtwn_bb_setbits(sc, R12A_FC_AREA, 0x1ffe0000, val);
376 
377 	for (i = 0; i < sc->nrxchains; i++) {
378 		if (36 <= chan && chan <= 64)
379 			val = 0x10100;
380 		else if (100 <= chan && chan <= 140)
381 			val = 0x30100;
382 		else if (140 < chan)
383 			val = 0x50100;
384 		else
385 			val = 0x00000;
386 
387 		rtwn_rf_setbits(sc, i, R92C_RF_CHNLBW, 0x70300, val);
388 
389 		/* RTL8812AU-specific */
390 		rtwn_r12a_fix_spur(sc, c);
391 
392 		KASSERT(chan <= 0xff, ("%s: chan %d\n", __func__, chan));
393 		rtwn_rf_setbits(sc, i, R92C_RF_CHNLBW, 0xff, chan);
394 	}
395 
396 #ifdef notyet
397 	if (IEEE80211_IS_CHAN_HT80(c)) {	/* 80 MHz */
398 		rtwn_setbits_2(sc, R92C_WMAC_TRXPTCL_CTL, 0x80, 0x100);
399 
400 		/* TODO */
401 
402 		val = 0x0;
403 	} else
404 #endif
405 	if (IEEE80211_IS_CHAN_HT40(c)) {	/* 40 MHz */
406 		uint8_t ext_chan;
407 
408 		if (IEEE80211_IS_CHAN_HT40U(c))
409 			ext_chan = R12A_DATA_SEC_PRIM_DOWN_20;
410 		else
411 			ext_chan = R12A_DATA_SEC_PRIM_UP_20;
412 
413 		rtwn_setbits_2(sc, R92C_WMAC_TRXPTCL_CTL, 0x100, 0x80);
414 		rtwn_write_1(sc, R12A_DATA_SEC, ext_chan);
415 
416 		rtwn_bb_setbits(sc, R12A_RFMOD, 0x003003c3, 0x00300201);
417 		rtwn_bb_setbits(sc, R12A_ADC_BUF_CLK, 0x40000000, 0);
418 
419 		/* discard high 4 bits */
420 		val = rtwn_bb_read(sc, R12A_RFMOD);
421 		val = RW(val, R12A_RFMOD_EXT_CHAN, ext_chan);
422 		rtwn_bb_write(sc, R12A_RFMOD, val);
423 
424 		val = rtwn_bb_read(sc, R12A_CCA_ON_SEC);
425 		val = RW(val, R12A_CCA_ON_SEC_EXT_CHAN, ext_chan);
426 		rtwn_bb_write(sc, R12A_CCA_ON_SEC, val);
427 
428 		if (rtwn_read_1(sc, 0x837) & 0x04)
429 			val = 0x01800000;
430 		else if (sc->nrxchains == 2 && sc->ntxchains == 2)
431 			val = 0x01c00000;
432 		else
433 			val = 0x02000000;
434 
435 		rtwn_bb_setbits(sc, R12A_L1_PEAK_TH, 0x03c00000, val);
436 
437 		if (IEEE80211_IS_CHAN_HT40U(c))
438 			rtwn_bb_setbits(sc, R92C_CCK0_SYSTEM, 0x10, 0);
439 		else
440 			rtwn_bb_setbits(sc, R92C_CCK0_SYSTEM, 0, 0x10);
441 
442 		val = 0x400;
443 	} else {	/* 20 MHz */
444 		rtwn_setbits_2(sc, R92C_WMAC_TRXPTCL_CTL, 0x180, 0);
445 		rtwn_write_1(sc, R12A_DATA_SEC, R12A_DATA_SEC_NO_EXT);
446 
447 		rtwn_bb_setbits(sc, R12A_RFMOD, 0x003003c3, 0x00300200);
448 		rtwn_bb_setbits(sc, R12A_ADC_BUF_CLK, 0x40000000, 0);
449 
450 		if (sc->nrxchains == 2 && sc->ntxchains == 2)
451 			val = 0x01c00000;
452 		else
453 			val = 0x02000000;
454 
455 		rtwn_bb_setbits(sc, R12A_L1_PEAK_TH, 0x03c00000, val);
456 
457 		val = 0xc00;
458 	}
459 
460 	/* RTL8812AU-specific */
461 	rtwn_r12a_fix_spur(sc, c);
462 
463 	for (i = 0; i < sc->nrxchains; i++)
464 		rtwn_rf_setbits(sc, i, R92C_RF_CHNLBW, 0xc00, val);
465 
466 	/* Set Tx power for this new channel. */
467 	r12a_set_txpower(sc, c);
468 }
469 
470 void
471 r12a_set_band_2ghz(struct rtwn_softc *sc, uint32_t basicrates)
472 {
473 	struct r12a_softc *rs = sc->sc_priv;
474 
475 	/* Enable CCK / OFDM. */
476 	rtwn_bb_setbits(sc, R12A_OFDMCCK_EN,
477 	    0, R12A_OFDMCCK_EN_CCK | R12A_OFDMCCK_EN_OFDM);
478 
479 	rtwn_bb_setbits(sc, R12A_BW_INDICATION, 0x02, 0x01);
480 	rtwn_bb_setbits(sc, R12A_PWED_TH, 0x3e000, 0x2e000);
481 
482 	/* Select AGC table. */
483 	rtwn_bb_setbits(sc, R12A_TXAGC_TABLE_SELECT, 0x03, 0);
484 
485 	switch (rs->rfe_type) {
486 	case 0:
487 	case 1:
488 	case 2:
489 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x77777777);
490 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77777777);
491 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0);
492 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0);
493 		break;
494 	case 3:
495 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x54337770);
496 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x54337770);
497 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0x01000000);
498 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0x01000000);
499 		rtwn_bb_setbits(sc, R12A_ANTSEL_SW, 0x0303, 0x01);
500 		break;
501 	case 4:
502 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x77777777);
503 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77777777);
504 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0x00100000);
505 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0x00100000);
506 		break;
507 	case 5:
508 		rtwn_write_1(sc, R12A_RFE_PINMUX(0) + 2, 0x77);
509 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77777777);
510 		rtwn_setbits_1(sc, R12A_RFE_INV(0) + 3, 0x01, 0);
511 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0);
512 		break;
513 	default:
514 		break;
515 	}
516 
517 	rtwn_bb_setbits(sc, R12A_TX_PATH, 0xf0, 0x10);
518 	rtwn_bb_setbits(sc, R12A_CCK_RX_PATH, 0x0f000000, 0x01000000);
519 
520 	/* Write basic rates. */
521 	rtwn_set_basicrates(sc, basicrates);
522 
523 	rtwn_write_1(sc, R12A_CCK_CHECK, 0);
524 }
525 
526 void
527 r12a_set_band_5ghz(struct rtwn_softc *sc, uint32_t basicrates)
528 {
529 	struct r12a_softc *rs = sc->sc_priv;
530 	int ntries;
531 
532 	rtwn_write_1(sc, R12A_CCK_CHECK, R12A_CCK_CHECK_5GHZ);
533 
534 	for (ntries = 0; ntries < 100; ntries++) {
535 		if ((rtwn_read_2(sc, R12A_TXPKT_EMPTY) & 0x30) == 0x30)
536 			break;
537 
538 		rtwn_delay(sc, 25);
539 	}
540 	if (ntries == 100) {
541 		device_printf(sc->sc_dev,
542 		    "%s: TXPKT_EMPTY check failed (%04X)\n",
543 		    __func__, rtwn_read_2(sc, R12A_TXPKT_EMPTY));
544 	}
545 
546 	/* Enable OFDM. */
547 	rtwn_bb_setbits(sc, R12A_OFDMCCK_EN, R12A_OFDMCCK_EN_CCK,
548 	    R12A_OFDMCCK_EN_OFDM);
549 
550 	rtwn_bb_setbits(sc, R12A_BW_INDICATION, 0x01, 0x02);
551 	rtwn_bb_setbits(sc, R12A_PWED_TH, 0x3e000, 0x2a000);
552 
553 	/* Select AGC table. */
554 	rtwn_bb_setbits(sc, R12A_TXAGC_TABLE_SELECT, 0x03, 0x01);
555 
556 	switch (rs->rfe_type) {
557 	case 0:
558 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x77337717);
559 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77337717);
560 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0x01000000);
561 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0x01000000);
562 		break;
563 	case 1:
564 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x77337717);
565 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77337717);
566 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0);
567 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0);
568 		break;
569 	case 2:
570 	case 4:
571 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x77337777);
572 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77337777);
573 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0x01000000);
574 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0x01000000);
575 		break;
576 	case 3:
577 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x54337717);
578 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x54337717);
579 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0x01000000);
580 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0x01000000);
581 		rtwn_bb_setbits(sc, R12A_ANTSEL_SW, 0x0303, 0x01);
582 		break;
583 	case 5:
584 		rtwn_write_1(sc, R12A_RFE_PINMUX(0) + 2, 0x33);
585 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77337777);
586 		rtwn_setbits_1(sc, R12A_RFE_INV(0) + 3, 0, 0x01);
587 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0x01000000);
588 		break;
589 	default:
590 		break;
591 	}
592 
593 	rtwn_bb_setbits(sc, R12A_TX_PATH, 0xf0, 0);
594 	rtwn_bb_setbits(sc, R12A_CCK_RX_PATH, 0, 0x0f000000);
595 
596 	/* Write basic rates. */
597 	rtwn_set_basicrates(sc, basicrates);
598 }
599