xref: /linux/drivers/net/wireless/mediatek/mt76/mt7603/init.c (revision 3ea5eb68b9d624935108b5e696859304edfac202)
1 // SPDX-License-Identifier: ISC
2 
3 #include <linux/etherdevice.h>
4 #include "mt7603.h"
5 #include "mac.h"
6 #include "eeprom.h"
7 
8 const struct mt76_driver_ops mt7603_drv_ops = {
9 	.txwi_size = MT_TXD_SIZE,
10 	.drv_flags = MT_DRV_SW_RX_AIRTIME,
11 	.survey_flags = SURVEY_INFO_TIME_TX,
12 	.tx_prepare_skb = mt7603_tx_prepare_skb,
13 	.tx_complete_skb = mt7603_tx_complete_skb,
14 	.rx_skb = mt7603_queue_rx_skb,
15 	.rx_poll_complete = mt7603_rx_poll_complete,
16 	.sta_ps = mt7603_sta_ps,
17 	.sta_add = mt7603_sta_add,
18 	.sta_event = mt7603_sta_event,
19 	.sta_remove = mt7603_sta_remove,
20 	.update_survey = mt7603_update_channel,
21 	.set_channel = mt7603_set_channel,
22 };
23 
24 static void
25 mt7603_set_tmac_template(struct mt7603_dev *dev)
26 {
27 	u32 desc[5] = {
28 		[1] = FIELD_PREP(MT_TXD3_REM_TX_COUNT, 0xf),
29 		[3] = MT_TXD5_SW_POWER_MGMT
30 	};
31 	u32 addr;
32 	int i;
33 
34 	addr = mt7603_reg_map(dev, MT_CLIENT_BASE_PHYS_ADDR);
35 	addr += MT_CLIENT_TMAC_INFO_TEMPLATE;
36 	for (i = 0; i < ARRAY_SIZE(desc); i++)
37 		mt76_wr(dev, addr + 4 * i, desc[i]);
38 }
39 
40 static void
41 mt7603_dma_sched_init(struct mt7603_dev *dev)
42 {
43 	int page_size = 128;
44 	int page_count;
45 	int max_len = 1792;
46 	int max_amsdu_pages = 4096 / page_size;
47 	int max_mcu_len = 4096;
48 	int max_beacon_len = 512 * 4 + max_len;
49 	int max_mcast_pages = 4 * max_len / page_size;
50 	int reserved_count = 0;
51 	int beacon_pages;
52 	int mcu_pages;
53 	int i;
54 
55 	page_count = mt76_get_field(dev, MT_PSE_FC_P0,
56 				    MT_PSE_FC_P0_MAX_QUOTA);
57 	beacon_pages = 4 * (max_beacon_len / page_size);
58 	mcu_pages = max_mcu_len / page_size;
59 
60 	mt76_wr(dev, MT_PSE_FRP,
61 		FIELD_PREP(MT_PSE_FRP_P0, 7) |
62 		FIELD_PREP(MT_PSE_FRP_P1, 6) |
63 		FIELD_PREP(MT_PSE_FRP_P2_RQ2, 4));
64 
65 	mt76_wr(dev, MT_HIGH_PRIORITY_1, 0x55555553);
66 	mt76_wr(dev, MT_HIGH_PRIORITY_2, 0x78555555);
67 
68 	mt76_wr(dev, MT_QUEUE_PRIORITY_1, 0x2b1a096e);
69 	mt76_wr(dev, MT_QUEUE_PRIORITY_2, 0x785f4d3c);
70 
71 	mt76_wr(dev, MT_PRIORITY_MASK, 0xffffffff);
72 
73 	mt76_wr(dev, MT_SCH_1, page_count | (2 << 28));
74 	mt76_wr(dev, MT_SCH_2, max_amsdu_pages);
75 
76 	for (i = 0; i <= 4; i++)
77 		mt76_wr(dev, MT_PAGE_COUNT(i), max_amsdu_pages);
78 	reserved_count += 5 * max_amsdu_pages;
79 
80 	mt76_wr(dev, MT_PAGE_COUNT(5), mcu_pages);
81 	reserved_count += mcu_pages;
82 
83 	mt76_wr(dev, MT_PAGE_COUNT(7), beacon_pages);
84 	reserved_count += beacon_pages;
85 
86 	mt76_wr(dev, MT_PAGE_COUNT(8), max_mcast_pages);
87 	reserved_count += max_mcast_pages;
88 
89 	if (is_mt7603(dev))
90 		reserved_count = 0;
91 
92 	mt76_wr(dev, MT_RSV_MAX_THRESH, page_count - reserved_count);
93 
94 	if (is_mt7603(dev) && mt76xx_rev(dev) >= MT7603_REV_E2) {
95 		mt76_wr(dev, MT_GROUP_THRESH(0),
96 			page_count - beacon_pages - mcu_pages);
97 		mt76_wr(dev, MT_GROUP_THRESH(1), beacon_pages);
98 		mt76_wr(dev, MT_BMAP_0, 0x0080ff5f);
99 		mt76_wr(dev, MT_GROUP_THRESH(2), mcu_pages);
100 		mt76_wr(dev, MT_BMAP_1, 0x00000020);
101 	} else {
102 		mt76_wr(dev, MT_GROUP_THRESH(0), page_count);
103 		mt76_wr(dev, MT_BMAP_0, 0xffff);
104 	}
105 
106 	mt76_wr(dev, MT_SCH_4, 0);
107 
108 	for (i = 0; i <= 15; i++)
109 		mt76_wr(dev, MT_TXTIME_THRESH(i), 0xfffff);
110 
111 	mt76_set(dev, MT_SCH_4, BIT(6));
112 }
113 
114 static void
115 mt7603_phy_init(struct mt7603_dev *dev)
116 {
117 	int rx_chains = dev->mphy.antenna_mask;
118 	int tx_chains = hweight8(rx_chains) - 1;
119 
120 	mt76_rmw(dev, MT_WF_RMAC_RMCR,
121 		 (MT_WF_RMAC_RMCR_SMPS_MODE |
122 		  MT_WF_RMAC_RMCR_RX_STREAMS),
123 		 (FIELD_PREP(MT_WF_RMAC_RMCR_SMPS_MODE, 3) |
124 		  FIELD_PREP(MT_WF_RMAC_RMCR_RX_STREAMS, rx_chains)));
125 
126 	mt76_rmw_field(dev, MT_TMAC_TCR, MT_TMAC_TCR_TX_STREAMS,
127 		       tx_chains);
128 
129 	dev->agc0 = mt76_rr(dev, MT_AGC(0));
130 	dev->agc3 = mt76_rr(dev, MT_AGC(3));
131 }
132 
133 static void
134 mt7603_mac_init(struct mt7603_dev *dev)
135 {
136 	u8 bc_addr[ETH_ALEN];
137 	u32 addr;
138 	int i;
139 
140 	mt76_wr(dev, MT_AGG_BA_SIZE_LIMIT_0,
141 		(MT_AGG_SIZE_LIMIT(0) << 0 * MT_AGG_BA_SIZE_LIMIT_SHIFT) |
142 		(MT_AGG_SIZE_LIMIT(1) << 1 * MT_AGG_BA_SIZE_LIMIT_SHIFT) |
143 		(MT_AGG_SIZE_LIMIT(2) << 2 * MT_AGG_BA_SIZE_LIMIT_SHIFT) |
144 		(MT_AGG_SIZE_LIMIT(3) << 3 * MT_AGG_BA_SIZE_LIMIT_SHIFT));
145 
146 	mt76_wr(dev, MT_AGG_BA_SIZE_LIMIT_1,
147 		(MT_AGG_SIZE_LIMIT(4) << 0 * MT_AGG_BA_SIZE_LIMIT_SHIFT) |
148 		(MT_AGG_SIZE_LIMIT(5) << 1 * MT_AGG_BA_SIZE_LIMIT_SHIFT) |
149 		(MT_AGG_SIZE_LIMIT(6) << 2 * MT_AGG_BA_SIZE_LIMIT_SHIFT) |
150 		(MT_AGG_SIZE_LIMIT(7) << 3 * MT_AGG_BA_SIZE_LIMIT_SHIFT));
151 
152 	mt76_wr(dev, MT_AGG_LIMIT,
153 		FIELD_PREP(MT_AGG_LIMIT_AC(0), 24) |
154 		FIELD_PREP(MT_AGG_LIMIT_AC(1), 24) |
155 		FIELD_PREP(MT_AGG_LIMIT_AC(2), 24) |
156 		FIELD_PREP(MT_AGG_LIMIT_AC(3), 24));
157 
158 	mt76_wr(dev, MT_AGG_LIMIT_1,
159 		FIELD_PREP(MT_AGG_LIMIT_AC(0), 24) |
160 		FIELD_PREP(MT_AGG_LIMIT_AC(1), 24) |
161 		FIELD_PREP(MT_AGG_LIMIT_AC(2), 24) |
162 		FIELD_PREP(MT_AGG_LIMIT_AC(3), 24));
163 
164 	mt76_wr(dev, MT_AGG_CONTROL,
165 		FIELD_PREP(MT_AGG_CONTROL_BAR_RATE, 0x4b) |
166 		FIELD_PREP(MT_AGG_CONTROL_CFEND_RATE, 0x69) |
167 		MT_AGG_CONTROL_NO_BA_AR_RULE);
168 
169 	mt76_wr(dev, MT_AGG_RETRY_CONTROL,
170 		FIELD_PREP(MT_AGG_RETRY_CONTROL_BAR_LIMIT, 1) |
171 		FIELD_PREP(MT_AGG_RETRY_CONTROL_RTS_LIMIT, 15));
172 
173 	mt76_wr(dev, MT_DMA_DCR0, MT_DMA_DCR0_RX_VEC_DROP |
174 		FIELD_PREP(MT_DMA_DCR0_MAX_RX_LEN, 4096));
175 
176 	mt76_rmw(dev, MT_DMA_VCFR0, BIT(0), BIT(13));
177 	mt76_rmw(dev, MT_DMA_TMCFR0, BIT(0) | BIT(1), BIT(13));
178 
179 	mt76_clear(dev, MT_WF_RMAC_TMR_PA, BIT(31));
180 
181 	mt76_set(dev, MT_WF_RMACDR, MT_WF_RMACDR_MAXLEN_20BIT);
182 	mt76_rmw(dev, MT_WF_RMAC_MAXMINLEN, 0xffffff, 0x19000);
183 
184 	mt76_wr(dev, MT_WF_RFCR1, 0);
185 
186 	mt76_set(dev, MT_TMAC_TCR, MT_TMAC_TCR_RX_RIFS_MODE);
187 
188 	if (is_mt7628(dev)) {
189 		mt76_set(dev, MT_TMAC_TCR,
190 			 MT_TMAC_TCR_TXOP_BURST_STOP | BIT(1) | BIT(0));
191 		mt76_set(dev, MT_TXREQ, BIT(27));
192 		mt76_set(dev, MT_AGG_TMP, GENMASK(4, 2));
193 	}
194 
195 	mt7603_set_tmac_template(dev);
196 
197 	/* Enable RX group to HIF */
198 	addr = mt7603_reg_map(dev, MT_CLIENT_BASE_PHYS_ADDR);
199 	mt76_set(dev, addr + MT_CLIENT_RXINF, MT_CLIENT_RXINF_RXSH_GROUPS);
200 
201 	/* Enable RX group to MCU */
202 	mt76_set(dev, MT_DMA_DCR1, GENMASK(13, 11));
203 
204 	mt76_rmw_field(dev, MT_AGG_PCR_RTS, MT_AGG_PCR_RTS_PKT_THR, 3);
205 	mt76_set(dev, MT_TMAC_PCR, MT_TMAC_PCR_SPE_EN);
206 
207 	/* include preamble detection in CCA trigger signal */
208 	mt76_rmw_field(dev, MT_TXREQ, MT_TXREQ_CCA_SRC_SEL, 2);
209 
210 	mt76_wr(dev, MT_RXREQ, 4);
211 
212 	/* Configure all rx packets to HIF */
213 	mt76_wr(dev, MT_DMA_RCFR0, 0xc0000000);
214 
215 	/* Configure MCU txs selection with aggregation */
216 	mt76_wr(dev, MT_DMA_TCFR0,
217 		FIELD_PREP(MT_DMA_TCFR_TXS_AGGR_TIMEOUT, 1) | /* 32 us */
218 		MT_DMA_TCFR_TXS_AGGR_COUNT);
219 
220 	/* Configure HIF txs selection with aggregation */
221 	mt76_wr(dev, MT_DMA_TCFR1,
222 		FIELD_PREP(MT_DMA_TCFR_TXS_AGGR_TIMEOUT, 1) | /* 32 us */
223 		MT_DMA_TCFR_TXS_AGGR_COUNT | /* Maximum count */
224 		MT_DMA_TCFR_TXS_BIT_MAP);
225 
226 	mt76_wr(dev, MT_MCU_PCIE_REMAP_1, MT_PSE_WTBL_2_PHYS_ADDR);
227 
228 	for (i = 0; i < MT7603_WTBL_SIZE; i++)
229 		mt7603_wtbl_clear(dev, i);
230 
231 	eth_broadcast_addr(bc_addr);
232 	mt7603_wtbl_init(dev, MT7603_WTBL_RESERVED, -1, bc_addr);
233 	dev->global_sta.wcid.idx = MT7603_WTBL_RESERVED;
234 	rcu_assign_pointer(dev->mt76.wcid[MT7603_WTBL_RESERVED],
235 			   &dev->global_sta.wcid);
236 
237 	mt76_rmw_field(dev, MT_LPON_BTEIR, MT_LPON_BTEIR_MBSS_MODE, 2);
238 	mt76_rmw_field(dev, MT_WF_RMACDR, MT_WF_RMACDR_MBSSID_MASK, 2);
239 
240 	mt76_wr(dev, MT_AGG_ARUCR,
241 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(0), 7) |
242 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(1), 2) |
243 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(2), 2) |
244 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(3), 2) |
245 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(4), 1) |
246 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(5), 1) |
247 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(6), 1) |
248 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(7), 1));
249 
250 	mt76_wr(dev, MT_AGG_ARDCR,
251 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(0), MT7603_RATE_RETRY - 1) |
252 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(1), MT7603_RATE_RETRY - 1) |
253 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(2), MT7603_RATE_RETRY - 1) |
254 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(3), MT7603_RATE_RETRY - 1) |
255 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(4), MT7603_RATE_RETRY - 1) |
256 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(5), MT7603_RATE_RETRY - 1) |
257 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(6), MT7603_RATE_RETRY - 1) |
258 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(7), MT7603_RATE_RETRY - 1));
259 
260 	mt76_wr(dev, MT_AGG_ARCR,
261 		(FIELD_PREP(MT_AGG_ARCR_RTS_RATE_THR, 2) |
262 		 MT_AGG_ARCR_RATE_DOWN_RATIO_EN |
263 		 FIELD_PREP(MT_AGG_ARCR_RATE_DOWN_RATIO, 1) |
264 		 FIELD_PREP(MT_AGG_ARCR_RATE_UP_EXTRA_TH, 4)));
265 
266 	mt76_set(dev, MT_WTBL_RMVTCR, MT_WTBL_RMVTCR_RX_MV_MODE);
267 
268 	mt76_clear(dev, MT_SEC_SCR, MT_SEC_SCR_MASK_ORDER);
269 	mt76_clear(dev, MT_SEC_SCR, BIT(18));
270 
271 	/* Set secondary beacon time offsets */
272 	for (i = 0; i <= 4; i++)
273 		mt76_rmw_field(dev, MT_LPON_SBTOR(i), MT_LPON_SBTOR_TIME_OFFSET,
274 			       (i + 1) * (20 + 4096));
275 }
276 
277 static int
278 mt7603_init_hardware(struct mt7603_dev *dev)
279 {
280 	int i, ret;
281 
282 	mt76_wr(dev, MT_INT_SOURCE_CSR, ~0);
283 
284 	ret = mt7603_eeprom_init(dev);
285 	if (ret < 0)
286 		return ret;
287 
288 	ret = mt7603_dma_init(dev);
289 	if (ret)
290 		return ret;
291 
292 	mt76_wr(dev, MT_WPDMA_GLO_CFG, 0x52000850);
293 	mt7603_mac_dma_start(dev);
294 	dev->rxfilter = mt76_rr(dev, MT_WF_RFCR);
295 	set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
296 
297 	for (i = 0; i < MT7603_WTBL_SIZE; i++) {
298 		mt76_wr(dev, MT_PSE_RTA, MT_PSE_RTA_BUSY | MT_PSE_RTA_WRITE |
299 			FIELD_PREP(MT_PSE_RTA_TAG_ID, i));
300 		mt76_poll(dev, MT_PSE_RTA, MT_PSE_RTA_BUSY, 0, 5000);
301 	}
302 
303 	ret = mt7603_mcu_init(dev);
304 	if (ret)
305 		return ret;
306 
307 	mt7603_dma_sched_init(dev);
308 	mt7603_mcu_set_eeprom(dev);
309 	mt7603_phy_init(dev);
310 	mt7603_mac_init(dev);
311 
312 	return 0;
313 }
314 
315 static const struct ieee80211_iface_limit if_limits[] = {
316 	{
317 		.max = 1,
318 		.types = BIT(NL80211_IFTYPE_ADHOC)
319 	}, {
320 		.max = MT7603_MAX_INTERFACES,
321 		.types = BIT(NL80211_IFTYPE_STATION) |
322 #ifdef CONFIG_MAC80211_MESH
323 			 BIT(NL80211_IFTYPE_MESH_POINT) |
324 #endif
325 			 BIT(NL80211_IFTYPE_P2P_CLIENT) |
326 			 BIT(NL80211_IFTYPE_P2P_GO) |
327 			 BIT(NL80211_IFTYPE_AP)
328 	 },
329 };
330 
331 static const struct ieee80211_iface_combination if_comb[] = {
332 	{
333 		.limits = if_limits,
334 		.n_limits = ARRAY_SIZE(if_limits),
335 		.max_interfaces = 4,
336 		.num_different_channels = 1,
337 		.beacon_int_infra_match = true,
338 	}
339 };
340 
341 static void mt7603_led_set_config(struct mt76_phy *mphy, u8 delay_on,
342 				  u8 delay_off)
343 {
344 	struct mt7603_dev *dev = container_of(mphy->dev, struct mt7603_dev,
345 					      mt76);
346 	u32 val, addr;
347 
348 	val = FIELD_PREP(MT_LED_STATUS_DURATION, 0xffff) |
349 	      FIELD_PREP(MT_LED_STATUS_OFF, delay_off) |
350 	      FIELD_PREP(MT_LED_STATUS_ON, delay_on);
351 
352 	addr = mt7603_reg_map(dev, MT_LED_STATUS_0(mphy->leds.pin));
353 	mt76_wr(dev, addr, val);
354 	addr = mt7603_reg_map(dev, MT_LED_STATUS_1(mphy->leds.pin));
355 	mt76_wr(dev, addr, val);
356 
357 	val = MT_LED_CTRL_REPLAY(mphy->leds.pin) |
358 	      MT_LED_CTRL_KICK(mphy->leds.pin);
359 	if (mphy->leds.al)
360 		val |= MT_LED_CTRL_POLARITY(mphy->leds.pin);
361 	addr = mt7603_reg_map(dev, MT_LED_CTRL);
362 	mt76_wr(dev, addr, val);
363 }
364 
365 static int mt7603_led_set_blink(struct led_classdev *led_cdev,
366 				unsigned long *delay_on,
367 				unsigned long *delay_off)
368 {
369 	struct mt76_phy *mphy = container_of(led_cdev, struct mt76_phy,
370 					     leds.cdev);
371 	u8 delta_on, delta_off;
372 
373 	delta_off = max_t(u8, *delay_off / 10, 1);
374 	delta_on = max_t(u8, *delay_on / 10, 1);
375 
376 	mt7603_led_set_config(mphy, delta_on, delta_off);
377 	return 0;
378 }
379 
380 static void mt7603_led_set_brightness(struct led_classdev *led_cdev,
381 				      enum led_brightness brightness)
382 {
383 	struct mt76_phy *mphy = container_of(led_cdev, struct mt76_phy,
384 					     leds.cdev);
385 
386 	if (!brightness)
387 		mt7603_led_set_config(mphy, 0, 0xff);
388 	else
389 		mt7603_led_set_config(mphy, 0xff, 0);
390 }
391 
392 static u32 __mt7603_reg_addr(struct mt7603_dev *dev, u32 addr)
393 {
394 	if (addr < 0x100000)
395 		return addr;
396 
397 	return mt7603_reg_map(dev, addr);
398 }
399 
400 static u32 mt7603_rr(struct mt76_dev *mdev, u32 offset)
401 {
402 	struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
403 	u32 addr = __mt7603_reg_addr(dev, offset);
404 
405 	return dev->bus_ops->rr(mdev, addr);
406 }
407 
408 static void mt7603_wr(struct mt76_dev *mdev, u32 offset, u32 val)
409 {
410 	struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
411 	u32 addr = __mt7603_reg_addr(dev, offset);
412 
413 	dev->bus_ops->wr(mdev, addr, val);
414 }
415 
416 static u32 mt7603_rmw(struct mt76_dev *mdev, u32 offset, u32 mask, u32 val)
417 {
418 	struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
419 	u32 addr = __mt7603_reg_addr(dev, offset);
420 
421 	return dev->bus_ops->rmw(mdev, addr, mask, val);
422 }
423 
424 static void
425 mt7603_regd_notifier(struct wiphy *wiphy,
426 		     struct regulatory_request *request)
427 {
428 	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
429 	struct mt7603_dev *dev = hw->priv;
430 
431 	dev->mt76.region = request->dfs_region;
432 	dev->ed_monitor = dev->ed_monitor_enabled &&
433 			  dev->mt76.region == NL80211_DFS_ETSI;
434 }
435 
436 static int
437 mt7603_txpower_signed(int val)
438 {
439 	bool sign = val & BIT(6);
440 
441 	if (!(val & BIT(7)))
442 		return 0;
443 
444 	val &= GENMASK(5, 0);
445 	if (!sign)
446 		val = -val;
447 
448 	return val;
449 }
450 
451 static void
452 mt7603_init_txpower(struct mt7603_dev *dev,
453 		    struct ieee80211_supported_band *sband)
454 {
455 	struct ieee80211_channel *chan;
456 	u8 *eeprom = (u8 *)dev->mt76.eeprom.data;
457 	int target_power = eeprom[MT_EE_TX_POWER_0_START_2G + 2] & ~BIT(7);
458 	u8 *rate_power = &eeprom[MT_EE_TX_POWER_CCK];
459 	bool ext_pa = eeprom[MT_EE_NIC_CONF_0 + 1] & BIT(1);
460 	u8 ext_pa_pwr;
461 	int max_offset, cur_offset;
462 	int i;
463 
464 	ext_pa_pwr = eeprom[MT_EE_TX_POWER_TSSI_OFF];
465 	if (ext_pa && is_mt7603(dev) && ext_pa_pwr != 0 && ext_pa_pwr != 0xff)
466 		target_power = ext_pa_pwr & ~BIT(7);
467 
468 	if (target_power & BIT(6))
469 		target_power = -(target_power & GENMASK(5, 0));
470 
471 	max_offset = 0;
472 	for (i = 0; i < 14; i++) {
473 		cur_offset = mt7603_txpower_signed(rate_power[i]);
474 		max_offset = max(max_offset, cur_offset);
475 	}
476 
477 	target_power += max_offset;
478 
479 	dev->tx_power_limit = target_power;
480 	dev->mphy.txpower_cur = target_power;
481 
482 	target_power = DIV_ROUND_UP(target_power, 2);
483 
484 	/* add 3 dBm for 2SS devices (combined output) */
485 	if (dev->mphy.antenna_mask & BIT(1))
486 		target_power += 3;
487 
488 	for (i = 0; i < sband->n_channels; i++) {
489 		chan = &sband->channels[i];
490 		chan->max_power = min_t(int, chan->max_reg_power, target_power);
491 		chan->orig_mpwr = target_power;
492 	}
493 }
494 
495 int mt7603_register_device(struct mt7603_dev *dev)
496 {
497 	struct mt76_bus_ops *bus_ops;
498 	struct ieee80211_hw *hw = mt76_hw(dev);
499 	struct wiphy *wiphy = hw->wiphy;
500 	int ret;
501 
502 	dev->bus_ops = dev->mt76.bus;
503 	bus_ops = devm_kmemdup(dev->mt76.dev, dev->bus_ops, sizeof(*bus_ops),
504 			       GFP_KERNEL);
505 	if (!bus_ops)
506 		return -ENOMEM;
507 
508 	bus_ops->rr = mt7603_rr;
509 	bus_ops->wr = mt7603_wr;
510 	bus_ops->rmw = mt7603_rmw;
511 	dev->mt76.bus = bus_ops;
512 
513 	spin_lock_init(&dev->ps_lock);
514 
515 	INIT_DELAYED_WORK(&dev->mphy.mac_work, mt7603_mac_work);
516 	tasklet_setup(&dev->mt76.pre_tbtt_tasklet, mt7603_pre_tbtt_tasklet);
517 
518 	dev->slottime = 9;
519 	dev->sensitivity_limit = 28;
520 	dev->dynamic_sensitivity = true;
521 
522 	ret = mt7603_init_hardware(dev);
523 	if (ret)
524 		return ret;
525 
526 	hw->queues = 4;
527 	hw->max_rates = 3;
528 	hw->max_report_rates = 7;
529 	hw->max_rate_tries = 11;
530 	hw->max_tx_fragments = 1;
531 
532 	hw->radiotap_timestamp.units_pos =
533 		IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US;
534 
535 	hw->sta_data_size = sizeof(struct mt7603_sta);
536 	hw->vif_data_size = sizeof(struct mt7603_vif);
537 
538 	wiphy->iface_combinations = if_comb;
539 	wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
540 
541 	ieee80211_hw_set(hw, TX_STATUS_NO_AMPDU_LEN);
542 	ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING);
543 	ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
544 
545 	/* init led callbacks */
546 	if (IS_ENABLED(CONFIG_MT76_LEDS)) {
547 		dev->mphy.leds.cdev.brightness_set = mt7603_led_set_brightness;
548 		dev->mphy.leds.cdev.blink_set = mt7603_led_set_blink;
549 	}
550 
551 	wiphy->reg_notifier = mt7603_regd_notifier;
552 
553 	ret = mt76_register_device(&dev->mt76, true, mt76_rates,
554 				   ARRAY_SIZE(mt76_rates));
555 	if (ret)
556 		return ret;
557 
558 	mt7603_init_debugfs(dev);
559 	mt7603_init_txpower(dev, &dev->mphy.sband_2g.sband);
560 
561 	return 0;
562 }
563 
564 void mt7603_unregister_device(struct mt7603_dev *dev)
565 {
566 	tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
567 	mt76_unregister_device(&dev->mt76);
568 	mt7603_mcu_exit(dev);
569 	mt7603_dma_cleanup(dev);
570 	mt76_free_device(&dev->mt76);
571 }
572