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_assoc = mt7603_sta_assoc,
19 	.sta_remove = mt7603_sta_remove,
20 	.update_survey = mt7603_update_channel,
21 };
22 
23 static void
mt7603_set_tmac_template(struct mt7603_dev * dev)24 mt7603_set_tmac_template(struct mt7603_dev *dev)
25 {
26 	u32 desc[5] = {
27 		[1] = FIELD_PREP(MT_TXD3_REM_TX_COUNT, 0xf),
28 		[3] = MT_TXD5_SW_POWER_MGMT
29 	};
30 	u32 addr;
31 	int i;
32 
33 	addr = mt7603_reg_map(dev, MT_CLIENT_BASE_PHYS_ADDR);
34 	addr += MT_CLIENT_TMAC_INFO_TEMPLATE;
35 	for (i = 0; i < ARRAY_SIZE(desc); i++)
36 		mt76_wr(dev, addr + 4 * i, desc[i]);
37 }
38 
39 static void
mt7603_dma_sched_init(struct mt7603_dev * dev)40 mt7603_dma_sched_init(struct mt7603_dev *dev)
41 {
42 	int page_size = 128;
43 	int page_count;
44 	int max_len = 1792;
45 	int max_amsdu_pages = 4096 / page_size;
46 	int max_mcu_len = 4096;
47 	int max_beacon_len = 512 * 4 + max_len;
48 	int max_mcast_pages = 4 * max_len / page_size;
49 	int reserved_count = 0;
50 	int beacon_pages;
51 	int mcu_pages;
52 	int i;
53 
54 	page_count = mt76_get_field(dev, MT_PSE_FC_P0,
55 				    MT_PSE_FC_P0_MAX_QUOTA);
56 	beacon_pages = 4 * (max_beacon_len / page_size);
57 	mcu_pages = max_mcu_len / page_size;
58 
59 	mt76_wr(dev, MT_PSE_FRP,
60 		FIELD_PREP(MT_PSE_FRP_P0, 7) |
61 		FIELD_PREP(MT_PSE_FRP_P1, 6) |
62 		FIELD_PREP(MT_PSE_FRP_P2_RQ2, 4));
63 
64 	mt76_wr(dev, MT_HIGH_PRIORITY_1, 0x55555553);
65 	mt76_wr(dev, MT_HIGH_PRIORITY_2, 0x78555555);
66 
67 	mt76_wr(dev, MT_QUEUE_PRIORITY_1, 0x2b1a096e);
68 	mt76_wr(dev, MT_QUEUE_PRIORITY_2, 0x785f4d3c);
69 
70 	mt76_wr(dev, MT_PRIORITY_MASK, 0xffffffff);
71 
72 	mt76_wr(dev, MT_SCH_1, page_count | (2 << 28));
73 	mt76_wr(dev, MT_SCH_2, max_amsdu_pages);
74 
75 	for (i = 0; i <= 4; i++)
76 		mt76_wr(dev, MT_PAGE_COUNT(i), max_amsdu_pages);
77 	reserved_count += 5 * max_amsdu_pages;
78 
79 	mt76_wr(dev, MT_PAGE_COUNT(5), mcu_pages);
80 	reserved_count += mcu_pages;
81 
82 	mt76_wr(dev, MT_PAGE_COUNT(7), beacon_pages);
83 	reserved_count += beacon_pages;
84 
85 	mt76_wr(dev, MT_PAGE_COUNT(8), max_mcast_pages);
86 	reserved_count += max_mcast_pages;
87 
88 	if (is_mt7603(dev))
89 		reserved_count = 0;
90 
91 	mt76_wr(dev, MT_RSV_MAX_THRESH, page_count - reserved_count);
92 
93 	if (is_mt7603(dev) && mt76xx_rev(dev) >= MT7603_REV_E2) {
94 		mt76_wr(dev, MT_GROUP_THRESH(0),
95 			page_count - beacon_pages - mcu_pages);
96 		mt76_wr(dev, MT_GROUP_THRESH(1), beacon_pages);
97 		mt76_wr(dev, MT_BMAP_0, 0x0080ff5f);
98 		mt76_wr(dev, MT_GROUP_THRESH(2), mcu_pages);
99 		mt76_wr(dev, MT_BMAP_1, 0x00000020);
100 	} else {
101 		mt76_wr(dev, MT_GROUP_THRESH(0), page_count);
102 		mt76_wr(dev, MT_BMAP_0, 0xffff);
103 	}
104 
105 	mt76_wr(dev, MT_SCH_4, 0);
106 
107 	for (i = 0; i <= 15; i++)
108 		mt76_wr(dev, MT_TXTIME_THRESH(i), 0xfffff);
109 
110 	mt76_set(dev, MT_SCH_4, BIT(6));
111 }
112 
113 static void
mt7603_phy_init(struct mt7603_dev * dev)114 mt7603_phy_init(struct mt7603_dev *dev)
115 {
116 	int rx_chains = dev->mphy.antenna_mask;
117 	int tx_chains = hweight8(rx_chains) - 1;
118 
119 	mt76_rmw(dev, MT_WF_RMAC_RMCR,
120 		 (MT_WF_RMAC_RMCR_SMPS_MODE |
121 		  MT_WF_RMAC_RMCR_RX_STREAMS),
122 		 (FIELD_PREP(MT_WF_RMAC_RMCR_SMPS_MODE, 3) |
123 		  FIELD_PREP(MT_WF_RMAC_RMCR_RX_STREAMS, rx_chains)));
124 
125 	mt76_rmw_field(dev, MT_TMAC_TCR, MT_TMAC_TCR_TX_STREAMS,
126 		       tx_chains);
127 
128 	dev->agc0 = mt76_rr(dev, MT_AGC(0));
129 	dev->agc3 = mt76_rr(dev, MT_AGC(3));
130 }
131 
132 static void
mt7603_mac_init(struct mt7603_dev * dev)133 mt7603_mac_init(struct mt7603_dev *dev)
134 {
135 	u8 bc_addr[ETH_ALEN];
136 	u32 addr;
137 	int i;
138 
139 	mt76_wr(dev, MT_AGG_BA_SIZE_LIMIT_0,
140 		(MT_AGG_SIZE_LIMIT(0) << 0 * MT_AGG_BA_SIZE_LIMIT_SHIFT) |
141 		(MT_AGG_SIZE_LIMIT(1) << 1 * MT_AGG_BA_SIZE_LIMIT_SHIFT) |
142 		(MT_AGG_SIZE_LIMIT(2) << 2 * MT_AGG_BA_SIZE_LIMIT_SHIFT) |
143 		(MT_AGG_SIZE_LIMIT(3) << 3 * MT_AGG_BA_SIZE_LIMIT_SHIFT));
144 
145 	mt76_wr(dev, MT_AGG_BA_SIZE_LIMIT_1,
146 		(MT_AGG_SIZE_LIMIT(4) << 0 * MT_AGG_BA_SIZE_LIMIT_SHIFT) |
147 		(MT_AGG_SIZE_LIMIT(5) << 1 * MT_AGG_BA_SIZE_LIMIT_SHIFT) |
148 		(MT_AGG_SIZE_LIMIT(6) << 2 * MT_AGG_BA_SIZE_LIMIT_SHIFT) |
149 		(MT_AGG_SIZE_LIMIT(7) << 3 * MT_AGG_BA_SIZE_LIMIT_SHIFT));
150 
151 	mt76_wr(dev, MT_AGG_LIMIT,
152 		FIELD_PREP(MT_AGG_LIMIT_AC(0), 24) |
153 		FIELD_PREP(MT_AGG_LIMIT_AC(1), 24) |
154 		FIELD_PREP(MT_AGG_LIMIT_AC(2), 24) |
155 		FIELD_PREP(MT_AGG_LIMIT_AC(3), 24));
156 
157 	mt76_wr(dev, MT_AGG_LIMIT_1,
158 		FIELD_PREP(MT_AGG_LIMIT_AC(0), 24) |
159 		FIELD_PREP(MT_AGG_LIMIT_AC(1), 24) |
160 		FIELD_PREP(MT_AGG_LIMIT_AC(2), 24) |
161 		FIELD_PREP(MT_AGG_LIMIT_AC(3), 24));
162 
163 	mt76_wr(dev, MT_AGG_CONTROL,
164 		FIELD_PREP(MT_AGG_CONTROL_BAR_RATE, 0x4b) |
165 		FIELD_PREP(MT_AGG_CONTROL_CFEND_RATE, 0x69) |
166 		MT_AGG_CONTROL_NO_BA_AR_RULE);
167 
168 	mt76_wr(dev, MT_AGG_RETRY_CONTROL,
169 		FIELD_PREP(MT_AGG_RETRY_CONTROL_BAR_LIMIT, 1) |
170 		FIELD_PREP(MT_AGG_RETRY_CONTROL_RTS_LIMIT, 15));
171 
172 	mt76_wr(dev, MT_DMA_DCR0, MT_DMA_DCR0_RX_VEC_DROP |
173 		FIELD_PREP(MT_DMA_DCR0_MAX_RX_LEN, 4096));
174 
175 	mt76_rmw(dev, MT_DMA_VCFR0, BIT(0), BIT(13));
176 	mt76_rmw(dev, MT_DMA_TMCFR0, BIT(0) | BIT(1), BIT(13));
177 
178 	mt76_clear(dev, MT_WF_RMAC_TMR_PA, BIT(31));
179 
180 	mt76_set(dev, MT_WF_RMACDR, MT_WF_RMACDR_MAXLEN_20BIT);
181 	mt76_rmw(dev, MT_WF_RMAC_MAXMINLEN, 0xffffff, 0x19000);
182 
183 	mt76_wr(dev, MT_WF_RFCR1, 0);
184 
185 	mt76_set(dev, MT_TMAC_TCR, MT_TMAC_TCR_RX_RIFS_MODE);
186 
187 	mt7603_set_tmac_template(dev);
188 
189 	/* Enable RX group to HIF */
190 	addr = mt7603_reg_map(dev, MT_CLIENT_BASE_PHYS_ADDR);
191 	mt76_set(dev, addr + MT_CLIENT_RXINF, MT_CLIENT_RXINF_RXSH_GROUPS);
192 
193 	/* Enable RX group to MCU */
194 	mt76_set(dev, MT_DMA_DCR1, GENMASK(13, 11));
195 
196 	mt76_rmw_field(dev, MT_AGG_PCR_RTS, MT_AGG_PCR_RTS_PKT_THR, 3);
197 	mt76_set(dev, MT_TMAC_PCR, MT_TMAC_PCR_SPE_EN);
198 
199 	/* include preamble detection in CCA trigger signal */
200 	mt76_rmw_field(dev, MT_TXREQ, MT_TXREQ_CCA_SRC_SEL, 2);
201 
202 	mt76_wr(dev, MT_RXREQ, 4);
203 
204 	/* Configure all rx packets to HIF */
205 	mt76_wr(dev, MT_DMA_RCFR0, 0xc0000000);
206 
207 	/* Configure MCU txs selection with aggregation */
208 	mt76_wr(dev, MT_DMA_TCFR0,
209 		FIELD_PREP(MT_DMA_TCFR_TXS_AGGR_TIMEOUT, 1) | /* 32 us */
210 		MT_DMA_TCFR_TXS_AGGR_COUNT);
211 
212 	/* Configure HIF txs selection with aggregation */
213 	mt76_wr(dev, MT_DMA_TCFR1,
214 		FIELD_PREP(MT_DMA_TCFR_TXS_AGGR_TIMEOUT, 1) | /* 32 us */
215 		MT_DMA_TCFR_TXS_AGGR_COUNT | /* Maximum count */
216 		MT_DMA_TCFR_TXS_BIT_MAP);
217 
218 	mt76_wr(dev, MT_MCU_PCIE_REMAP_1, MT_PSE_WTBL_2_PHYS_ADDR);
219 
220 	for (i = 0; i < MT7603_WTBL_SIZE; i++)
221 		mt7603_wtbl_clear(dev, i);
222 
223 	eth_broadcast_addr(bc_addr);
224 	mt7603_wtbl_init(dev, MT7603_WTBL_RESERVED, -1, bc_addr);
225 	dev->global_sta.wcid.idx = MT7603_WTBL_RESERVED;
226 	rcu_assign_pointer(dev->mt76.wcid[MT7603_WTBL_RESERVED],
227 			   &dev->global_sta.wcid);
228 
229 	mt76_rmw_field(dev, MT_LPON_BTEIR, MT_LPON_BTEIR_MBSS_MODE, 2);
230 	mt76_rmw_field(dev, MT_WF_RMACDR, MT_WF_RMACDR_MBSSID_MASK, 2);
231 
232 	mt76_wr(dev, MT_AGG_ARUCR,
233 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(0), 7) |
234 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(1), 2) |
235 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(2), 2) |
236 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(3), 2) |
237 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(4), 1) |
238 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(5), 1) |
239 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(6), 1) |
240 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(7), 1));
241 
242 	mt76_wr(dev, MT_AGG_ARDCR,
243 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(0), MT7603_RATE_RETRY - 1) |
244 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(1), MT7603_RATE_RETRY - 1) |
245 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(2), MT7603_RATE_RETRY - 1) |
246 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(3), MT7603_RATE_RETRY - 1) |
247 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(4), MT7603_RATE_RETRY - 1) |
248 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(5), MT7603_RATE_RETRY - 1) |
249 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(6), MT7603_RATE_RETRY - 1) |
250 		FIELD_PREP(MT_AGG_ARxCR_LIMIT(7), MT7603_RATE_RETRY - 1));
251 
252 	mt76_wr(dev, MT_AGG_ARCR,
253 		(FIELD_PREP(MT_AGG_ARCR_RTS_RATE_THR, 2) |
254 		 MT_AGG_ARCR_RATE_DOWN_RATIO_EN |
255 		 FIELD_PREP(MT_AGG_ARCR_RATE_DOWN_RATIO, 1) |
256 		 FIELD_PREP(MT_AGG_ARCR_RATE_UP_EXTRA_TH, 4)));
257 
258 	mt76_set(dev, MT_WTBL_RMVTCR, MT_WTBL_RMVTCR_RX_MV_MODE);
259 
260 	mt76_clear(dev, MT_SEC_SCR, MT_SEC_SCR_MASK_ORDER);
261 	mt76_clear(dev, MT_SEC_SCR, BIT(18));
262 
263 	/* Set secondary beacon time offsets */
264 	for (i = 0; i <= 4; i++)
265 		mt76_rmw_field(dev, MT_LPON_SBTOR(i), MT_LPON_SBTOR_TIME_OFFSET,
266 			       (i + 1) * (20 + 4096));
267 }
268 
269 static int
mt7603_init_hardware(struct mt7603_dev * dev)270 mt7603_init_hardware(struct mt7603_dev *dev)
271 {
272 	int i, ret;
273 
274 	mt76_wr(dev, MT_INT_SOURCE_CSR, ~0);
275 
276 	ret = mt7603_eeprom_init(dev);
277 	if (ret < 0)
278 		return ret;
279 
280 	ret = mt7603_dma_init(dev);
281 	if (ret)
282 		return ret;
283 
284 	mt76_wr(dev, MT_WPDMA_GLO_CFG, 0x52000850);
285 	mt7603_mac_dma_start(dev);
286 	dev->rxfilter = mt76_rr(dev, MT_WF_RFCR);
287 	set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
288 
289 	for (i = 0; i < MT7603_WTBL_SIZE; i++) {
290 		mt76_wr(dev, MT_PSE_RTA, MT_PSE_RTA_BUSY | MT_PSE_RTA_WRITE |
291 			FIELD_PREP(MT_PSE_RTA_TAG_ID, i));
292 		mt76_poll(dev, MT_PSE_RTA, MT_PSE_RTA_BUSY, 0, 5000);
293 	}
294 
295 	ret = mt7603_mcu_init(dev);
296 	if (ret)
297 		return ret;
298 
299 	mt7603_dma_sched_init(dev);
300 	mt7603_mcu_set_eeprom(dev);
301 	mt7603_phy_init(dev);
302 	mt7603_mac_init(dev);
303 
304 	return 0;
305 }
306 
307 static const struct ieee80211_iface_limit if_limits[] = {
308 	{
309 		.max = 1,
310 		.types = BIT(NL80211_IFTYPE_ADHOC)
311 	}, {
312 		.max = MT7603_MAX_INTERFACES,
313 		.types = BIT(NL80211_IFTYPE_STATION) |
314 #ifdef CONFIG_MAC80211_MESH
315 			 BIT(NL80211_IFTYPE_MESH_POINT) |
316 #endif
317 			 BIT(NL80211_IFTYPE_P2P_CLIENT) |
318 			 BIT(NL80211_IFTYPE_P2P_GO) |
319 			 BIT(NL80211_IFTYPE_AP)
320 	 },
321 };
322 
323 static const struct ieee80211_iface_combination if_comb[] = {
324 	{
325 		.limits = if_limits,
326 		.n_limits = ARRAY_SIZE(if_limits),
327 		.max_interfaces = 4,
328 		.num_different_channels = 1,
329 		.beacon_int_infra_match = true,
330 	}
331 };
332 
mt7603_led_set_config(struct mt76_phy * mphy,u8 delay_on,u8 delay_off)333 static void mt7603_led_set_config(struct mt76_phy *mphy, u8 delay_on,
334 				  u8 delay_off)
335 {
336 	struct mt7603_dev *dev = container_of(mphy->dev, struct mt7603_dev,
337 					      mt76);
338 	u32 val, addr;
339 
340 	val = FIELD_PREP(MT_LED_STATUS_DURATION, 0xffff) |
341 	      FIELD_PREP(MT_LED_STATUS_OFF, delay_off) |
342 	      FIELD_PREP(MT_LED_STATUS_ON, delay_on);
343 
344 	addr = mt7603_reg_map(dev, MT_LED_STATUS_0(mphy->leds.pin));
345 	mt76_wr(dev, addr, val);
346 	addr = mt7603_reg_map(dev, MT_LED_STATUS_1(mphy->leds.pin));
347 	mt76_wr(dev, addr, val);
348 
349 	val = MT_LED_CTRL_REPLAY(mphy->leds.pin) |
350 	      MT_LED_CTRL_KICK(mphy->leds.pin);
351 	if (mphy->leds.al)
352 		val |= MT_LED_CTRL_POLARITY(mphy->leds.pin);
353 	addr = mt7603_reg_map(dev, MT_LED_CTRL);
354 	mt76_wr(dev, addr, val);
355 }
356 
mt7603_led_set_blink(struct led_classdev * led_cdev,unsigned long * delay_on,unsigned long * delay_off)357 static int mt7603_led_set_blink(struct led_classdev *led_cdev,
358 				unsigned long *delay_on,
359 				unsigned long *delay_off)
360 {
361 	struct mt76_phy *mphy = container_of(led_cdev, struct mt76_phy,
362 					     leds.cdev);
363 	u8 delta_on, delta_off;
364 
365 	delta_off = max_t(u8, *delay_off / 10, 1);
366 	delta_on = max_t(u8, *delay_on / 10, 1);
367 
368 	mt7603_led_set_config(mphy, delta_on, delta_off);
369 	return 0;
370 }
371 
mt7603_led_set_brightness(struct led_classdev * led_cdev,enum led_brightness brightness)372 static void mt7603_led_set_brightness(struct led_classdev *led_cdev,
373 				      enum led_brightness brightness)
374 {
375 	struct mt76_phy *mphy = container_of(led_cdev, struct mt76_phy,
376 					     leds.cdev);
377 
378 	if (!brightness)
379 		mt7603_led_set_config(mphy, 0, 0xff);
380 	else
381 		mt7603_led_set_config(mphy, 0xff, 0);
382 }
383 
__mt7603_reg_addr(struct mt7603_dev * dev,u32 addr)384 static u32 __mt7603_reg_addr(struct mt7603_dev *dev, u32 addr)
385 {
386 	if (addr < 0x100000)
387 		return addr;
388 
389 	return mt7603_reg_map(dev, addr);
390 }
391 
mt7603_rr(struct mt76_dev * mdev,u32 offset)392 static u32 mt7603_rr(struct mt76_dev *mdev, u32 offset)
393 {
394 	struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
395 	u32 addr = __mt7603_reg_addr(dev, offset);
396 
397 	return dev->bus_ops->rr(mdev, addr);
398 }
399 
mt7603_wr(struct mt76_dev * mdev,u32 offset,u32 val)400 static void mt7603_wr(struct mt76_dev *mdev, u32 offset, u32 val)
401 {
402 	struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
403 	u32 addr = __mt7603_reg_addr(dev, offset);
404 
405 	dev->bus_ops->wr(mdev, addr, val);
406 }
407 
mt7603_rmw(struct mt76_dev * mdev,u32 offset,u32 mask,u32 val)408 static u32 mt7603_rmw(struct mt76_dev *mdev, u32 offset, u32 mask, 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 	return dev->bus_ops->rmw(mdev, addr, mask, val);
414 }
415 
416 static void
mt7603_regd_notifier(struct wiphy * wiphy,struct regulatory_request * request)417 mt7603_regd_notifier(struct wiphy *wiphy,
418 		     struct regulatory_request *request)
419 {
420 	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
421 	struct mt7603_dev *dev = hw->priv;
422 
423 	dev->mt76.region = request->dfs_region;
424 	dev->ed_monitor = dev->ed_monitor_enabled &&
425 			  dev->mt76.region == NL80211_DFS_ETSI;
426 }
427 
428 static int
mt7603_txpower_signed(int val)429 mt7603_txpower_signed(int val)
430 {
431 	bool sign = val & BIT(6);
432 
433 	if (!(val & BIT(7)))
434 		return 0;
435 
436 	val &= GENMASK(5, 0);
437 	if (!sign)
438 		val = -val;
439 
440 	return val;
441 }
442 
443 static void
mt7603_init_txpower(struct mt7603_dev * dev,struct ieee80211_supported_band * sband)444 mt7603_init_txpower(struct mt7603_dev *dev,
445 		    struct ieee80211_supported_band *sband)
446 {
447 	struct ieee80211_channel *chan;
448 	u8 *eeprom = (u8 *)dev->mt76.eeprom.data;
449 	int target_power = eeprom[MT_EE_TX_POWER_0_START_2G + 2] & ~BIT(7);
450 	u8 *rate_power = &eeprom[MT_EE_TX_POWER_CCK];
451 	bool ext_pa = eeprom[MT_EE_NIC_CONF_0 + 1] & BIT(1);
452 	int max_offset, cur_offset;
453 	int i;
454 
455 	if (ext_pa && is_mt7603(dev))
456 		target_power = eeprom[MT_EE_TX_POWER_TSSI_OFF] & ~BIT(7);
457 
458 	if (target_power & BIT(6))
459 		target_power = -(target_power & GENMASK(5, 0));
460 
461 	max_offset = 0;
462 	for (i = 0; i < 14; i++) {
463 		cur_offset = mt7603_txpower_signed(rate_power[i]);
464 		max_offset = max(max_offset, cur_offset);
465 	}
466 
467 	target_power += max_offset;
468 
469 	dev->tx_power_limit = target_power;
470 	dev->mphy.txpower_cur = target_power;
471 
472 	target_power = DIV_ROUND_UP(target_power, 2);
473 
474 	/* add 3 dBm for 2SS devices (combined output) */
475 	if (dev->mphy.antenna_mask & BIT(1))
476 		target_power += 3;
477 
478 	for (i = 0; i < sband->n_channels; i++) {
479 		chan = &sband->channels[i];
480 		chan->max_power = min_t(int, chan->max_reg_power, target_power);
481 		chan->orig_mpwr = target_power;
482 	}
483 }
484 
mt7603_register_device(struct mt7603_dev * dev)485 int mt7603_register_device(struct mt7603_dev *dev)
486 {
487 	struct mt76_bus_ops *bus_ops;
488 	struct ieee80211_hw *hw = mt76_hw(dev);
489 	struct wiphy *wiphy = hw->wiphy;
490 	int ret;
491 
492 	dev->bus_ops = dev->mt76.bus;
493 	bus_ops = devm_kmemdup(dev->mt76.dev, dev->bus_ops, sizeof(*bus_ops),
494 			       GFP_KERNEL);
495 	if (!bus_ops)
496 		return -ENOMEM;
497 
498 	bus_ops->rr = mt7603_rr;
499 	bus_ops->wr = mt7603_wr;
500 	bus_ops->rmw = mt7603_rmw;
501 	dev->mt76.bus = bus_ops;
502 
503 	spin_lock_init(&dev->ps_lock);
504 
505 	INIT_DELAYED_WORK(&dev->mphy.mac_work, mt7603_mac_work);
506 	tasklet_setup(&dev->mt76.pre_tbtt_tasklet, mt7603_pre_tbtt_tasklet);
507 
508 	dev->slottime = 9;
509 	dev->sensitivity_limit = 28;
510 	dev->dynamic_sensitivity = true;
511 
512 	ret = mt7603_init_hardware(dev);
513 	if (ret)
514 		return ret;
515 
516 	hw->queues = 4;
517 	hw->max_rates = 3;
518 	hw->max_report_rates = 7;
519 	hw->max_rate_tries = 11;
520 
521 	hw->radiotap_timestamp.units_pos =
522 		IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US;
523 
524 	hw->sta_data_size = sizeof(struct mt7603_sta);
525 	hw->vif_data_size = sizeof(struct mt7603_vif);
526 
527 	wiphy->iface_combinations = if_comb;
528 	wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
529 
530 	ieee80211_hw_set(hw, TX_STATUS_NO_AMPDU_LEN);
531 	ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING);
532 	ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
533 
534 	/* init led callbacks */
535 	if (IS_ENABLED(CONFIG_MT76_LEDS)) {
536 		dev->mphy.leds.cdev.brightness_set = mt7603_led_set_brightness;
537 		dev->mphy.leds.cdev.blink_set = mt7603_led_set_blink;
538 	}
539 
540 	wiphy->reg_notifier = mt7603_regd_notifier;
541 
542 	ret = mt76_register_device(&dev->mt76, true, mt76_rates,
543 				   ARRAY_SIZE(mt76_rates));
544 	if (ret)
545 		return ret;
546 
547 	mt7603_init_debugfs(dev);
548 	mt7603_init_txpower(dev, &dev->mphy.sband_2g.sband);
549 
550 	return 0;
551 }
552 
mt7603_unregister_device(struct mt7603_dev * dev)553 void mt7603_unregister_device(struct mt7603_dev *dev)
554 {
555 	tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
556 	mt76_unregister_device(&dev->mt76);
557 	mt7603_mcu_exit(dev);
558 	mt7603_dma_cleanup(dev);
559 	mt76_free_device(&dev->mt76);
560 }
561