1 /* SPDX-License-Identifier: ISC */
2 /*
3  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
4  */
5 
6 #ifndef __MT76_H
7 #define __MT76_H
8 
9 #include <linux/kernel.h>
10 #include <linux/io.h>
11 #include <linux/spinlock.h>
12 #include <linux/skbuff.h>
13 #include <linux/leds.h>
14 #include <linux/usb.h>
15 #include <linux/average.h>
16 #include <linux/soc/mediatek/mtk_wed.h>
17 #include <net/mac80211.h>
18 #include "util.h"
19 #include "testmode.h"
20 
21 #define MT_MCU_RING_SIZE	32
22 #define MT_RX_BUF_SIZE		2048
23 #define MT_SKB_HEAD_LEN		256
24 
25 #define MT_MAX_NON_AQL_PKT	16
26 #define MT_TXQ_FREE_THR		32
27 
28 #define MT76_TOKEN_FREE_THR	64
29 
30 #define MT_QFLAG_WED_RING	GENMASK(1, 0)
31 #define MT_QFLAG_WED_TYPE	GENMASK(3, 2)
32 #define MT_QFLAG_WED		BIT(4)
33 
34 #define __MT_WED_Q(_type, _n)	(MT_QFLAG_WED | \
35 				 FIELD_PREP(MT_QFLAG_WED_TYPE, _type) | \
36 				 FIELD_PREP(MT_QFLAG_WED_RING, _n))
37 #define MT_WED_Q_TX(_n)		__MT_WED_Q(MT76_WED_Q_TX, _n)
38 #define MT_WED_Q_RX(_n)		__MT_WED_Q(MT76_WED_Q_RX, _n)
39 #define MT_WED_Q_TXFREE		__MT_WED_Q(MT76_WED_Q_TXFREE, 0)
40 
41 struct mt76_dev;
42 struct mt76_phy;
43 struct mt76_wcid;
44 struct mt76s_intr;
45 
46 struct mt76_reg_pair {
47 	u32 reg;
48 	u32 value;
49 };
50 
51 enum mt76_bus_type {
52 	MT76_BUS_MMIO,
53 	MT76_BUS_USB,
54 	MT76_BUS_SDIO,
55 };
56 
57 enum mt76_wed_type {
58 	MT76_WED_Q_TX,
59 	MT76_WED_Q_TXFREE,
60 	MT76_WED_Q_RX,
61 };
62 
63 struct mt76_bus_ops {
64 	u32 (*rr)(struct mt76_dev *dev, u32 offset);
65 	void (*wr)(struct mt76_dev *dev, u32 offset, u32 val);
66 	u32 (*rmw)(struct mt76_dev *dev, u32 offset, u32 mask, u32 val);
67 	void (*write_copy)(struct mt76_dev *dev, u32 offset, const void *data,
68 			   int len);
69 	void (*read_copy)(struct mt76_dev *dev, u32 offset, void *data,
70 			  int len);
71 	int (*wr_rp)(struct mt76_dev *dev, u32 base,
72 		     const struct mt76_reg_pair *rp, int len);
73 	int (*rd_rp)(struct mt76_dev *dev, u32 base,
74 		     struct mt76_reg_pair *rp, int len);
75 	enum mt76_bus_type type;
76 };
77 
78 #define mt76_is_usb(dev) ((dev)->bus->type == MT76_BUS_USB)
79 #define mt76_is_mmio(dev) ((dev)->bus->type == MT76_BUS_MMIO)
80 #define mt76_is_sdio(dev) ((dev)->bus->type == MT76_BUS_SDIO)
81 
82 enum mt76_txq_id {
83 	MT_TXQ_VO = IEEE80211_AC_VO,
84 	MT_TXQ_VI = IEEE80211_AC_VI,
85 	MT_TXQ_BE = IEEE80211_AC_BE,
86 	MT_TXQ_BK = IEEE80211_AC_BK,
87 	MT_TXQ_PSD,
88 	MT_TXQ_BEACON,
89 	MT_TXQ_CAB,
90 	__MT_TXQ_MAX
91 };
92 
93 enum mt76_mcuq_id {
94 	MT_MCUQ_WM,
95 	MT_MCUQ_WA,
96 	MT_MCUQ_FWDL,
97 	__MT_MCUQ_MAX
98 };
99 
100 enum mt76_rxq_id {
101 	MT_RXQ_MAIN,
102 	MT_RXQ_MCU,
103 	MT_RXQ_MCU_WA,
104 	MT_RXQ_BAND1,
105 	MT_RXQ_BAND1_WA,
106 	MT_RXQ_MAIN_WA,
107 	MT_RXQ_BAND2,
108 	MT_RXQ_BAND2_WA,
109 	__MT_RXQ_MAX
110 };
111 
112 enum mt76_band_id {
113 	MT_BAND0,
114 	MT_BAND1,
115 	MT_BAND2,
116 	__MT_MAX_BAND
117 };
118 
119 enum mt76_cipher_type {
120 	MT_CIPHER_NONE,
121 	MT_CIPHER_WEP40,
122 	MT_CIPHER_TKIP,
123 	MT_CIPHER_TKIP_NO_MIC,
124 	MT_CIPHER_AES_CCMP,
125 	MT_CIPHER_WEP104,
126 	MT_CIPHER_BIP_CMAC_128,
127 	MT_CIPHER_WEP128,
128 	MT_CIPHER_WAPI,
129 	MT_CIPHER_CCMP_CCX,
130 	MT_CIPHER_CCMP_256,
131 	MT_CIPHER_GCMP,
132 	MT_CIPHER_GCMP_256,
133 };
134 
135 enum mt76_dfs_state {
136 	MT_DFS_STATE_UNKNOWN,
137 	MT_DFS_STATE_DISABLED,
138 	MT_DFS_STATE_CAC,
139 	MT_DFS_STATE_ACTIVE,
140 };
141 
142 struct mt76_queue_buf {
143 	dma_addr_t addr;
144 	u16 len;
145 	bool skip_unmap;
146 };
147 
148 struct mt76_tx_info {
149 	struct mt76_queue_buf buf[32];
150 	struct sk_buff *skb;
151 	int nbuf;
152 	u32 info;
153 };
154 
155 struct mt76_queue_entry {
156 	union {
157 		void *buf;
158 		struct sk_buff *skb;
159 	};
160 	union {
161 		struct mt76_txwi_cache *txwi;
162 		struct urb *urb;
163 		int buf_sz;
164 	};
165 	u32 dma_addr[2];
166 	u16 dma_len[2];
167 	u16 wcid;
168 	bool skip_buf0:1;
169 	bool skip_buf1:1;
170 	bool done:1;
171 };
172 
173 struct mt76_queue_regs {
174 	u32 desc_base;
175 	u32 ring_size;
176 	u32 cpu_idx;
177 	u32 dma_idx;
178 } __packed __aligned(4);
179 
180 struct mt76_queue {
181 	struct mt76_queue_regs __iomem *regs;
182 
183 	spinlock_t lock;
184 	spinlock_t cleanup_lock;
185 	struct mt76_queue_entry *entry;
186 	struct mt76_desc *desc;
187 
188 	u16 first;
189 	u16 head;
190 	u16 tail;
191 	int ndesc;
192 	int queued;
193 	int buf_size;
194 	bool stopped;
195 	bool blocked;
196 
197 	u8 buf_offset;
198 	u8 hw_idx;
199 	u8 flags;
200 
201 	u32 wed_regs;
202 
203 	dma_addr_t desc_dma;
204 	struct sk_buff *rx_head;
205 	struct page_pool *page_pool;
206 };
207 
208 struct mt76_mcu_ops {
209 	u32 headroom;
210 	u32 tailroom;
211 
212 	int (*mcu_send_msg)(struct mt76_dev *dev, int cmd, const void *data,
213 			    int len, bool wait_resp);
214 	int (*mcu_skb_send_msg)(struct mt76_dev *dev, struct sk_buff *skb,
215 				int cmd, int *seq);
216 	int (*mcu_parse_response)(struct mt76_dev *dev, int cmd,
217 				  struct sk_buff *skb, int seq);
218 	u32 (*mcu_rr)(struct mt76_dev *dev, u32 offset);
219 	void (*mcu_wr)(struct mt76_dev *dev, u32 offset, u32 val);
220 	int (*mcu_wr_rp)(struct mt76_dev *dev, u32 base,
221 			 const struct mt76_reg_pair *rp, int len);
222 	int (*mcu_rd_rp)(struct mt76_dev *dev, u32 base,
223 			 struct mt76_reg_pair *rp, int len);
224 	int (*mcu_restart)(struct mt76_dev *dev);
225 };
226 
227 struct mt76_queue_ops {
228 	int (*init)(struct mt76_dev *dev,
229 		    int (*poll)(struct napi_struct *napi, int budget));
230 
231 	int (*alloc)(struct mt76_dev *dev, struct mt76_queue *q,
232 		     int idx, int n_desc, int bufsize,
233 		     u32 ring_base);
234 
235 	int (*tx_queue_skb)(struct mt76_dev *dev, struct mt76_queue *q,
236 			    enum mt76_txq_id qid, struct sk_buff *skb,
237 			    struct mt76_wcid *wcid, struct ieee80211_sta *sta);
238 
239 	int (*tx_queue_skb_raw)(struct mt76_dev *dev, struct mt76_queue *q,
240 				struct sk_buff *skb, u32 tx_info);
241 
242 	void *(*dequeue)(struct mt76_dev *dev, struct mt76_queue *q, bool flush,
243 			 int *len, u32 *info, bool *more);
244 
245 	void (*rx_reset)(struct mt76_dev *dev, enum mt76_rxq_id qid);
246 
247 	void (*tx_cleanup)(struct mt76_dev *dev, struct mt76_queue *q,
248 			   bool flush);
249 
250 	void (*rx_cleanup)(struct mt76_dev *dev, struct mt76_queue *q);
251 
252 	void (*kick)(struct mt76_dev *dev, struct mt76_queue *q);
253 
254 	void (*reset_q)(struct mt76_dev *dev, struct mt76_queue *q);
255 };
256 
257 enum mt76_phy_type {
258 	MT_PHY_TYPE_CCK,
259 	MT_PHY_TYPE_OFDM,
260 	MT_PHY_TYPE_HT,
261 	MT_PHY_TYPE_HT_GF,
262 	MT_PHY_TYPE_VHT,
263 	MT_PHY_TYPE_HE_SU = 8,
264 	MT_PHY_TYPE_HE_EXT_SU,
265 	MT_PHY_TYPE_HE_TB,
266 	MT_PHY_TYPE_HE_MU,
267 	MT_PHY_TYPE_EHT_SU = 13,
268 	MT_PHY_TYPE_EHT_TRIG,
269 	MT_PHY_TYPE_EHT_MU,
270 	__MT_PHY_TYPE_MAX,
271 };
272 
273 struct mt76_sta_stats {
274 	u64 tx_mode[__MT_PHY_TYPE_MAX];
275 	u64 tx_bw[5];		/* 20, 40, 80, 160, 320 */
276 	u64 tx_nss[4];		/* 1, 2, 3, 4 */
277 	u64 tx_mcs[16];		/* mcs idx */
278 	u64 tx_bytes;
279 	/* WED TX */
280 	u32 tx_packets;
281 	u32 tx_retries;
282 	u32 tx_failed;
283 	/* WED RX */
284 	u64 rx_bytes;
285 	u32 rx_packets;
286 	u32 rx_errors;
287 	u32 rx_drops;
288 };
289 
290 enum mt76_wcid_flags {
291 	MT_WCID_FLAG_CHECK_PS,
292 	MT_WCID_FLAG_PS,
293 	MT_WCID_FLAG_4ADDR,
294 	MT_WCID_FLAG_HDR_TRANS,
295 };
296 
297 #define MT76_N_WCIDS 1088
298 
299 /* stored in ieee80211_tx_info::hw_queue */
300 #define MT_TX_HW_QUEUE_PHY		GENMASK(3, 2)
301 
302 DECLARE_EWMA(signal, 10, 8);
303 
304 #define MT_WCID_TX_INFO_RATE		GENMASK(15, 0)
305 #define MT_WCID_TX_INFO_NSS		GENMASK(17, 16)
306 #define MT_WCID_TX_INFO_TXPWR_ADJ	GENMASK(25, 18)
307 #define MT_WCID_TX_INFO_SET		BIT(31)
308 
309 struct mt76_wcid {
310 	struct mt76_rx_tid __rcu *aggr[IEEE80211_NUM_TIDS];
311 
312 	atomic_t non_aql_packets;
313 	unsigned long flags;
314 
315 	struct ewma_signal rssi;
316 	int inactive_count;
317 
318 	struct rate_info rate;
319 
320 	u16 idx;
321 	u8 hw_key_idx;
322 	u8 hw_key_idx2;
323 
324 	u8 sta:1;
325 	u8 amsdu:1;
326 	u8 phy_idx:2;
327 
328 	u8 rx_check_pn;
329 	u8 rx_key_pn[IEEE80211_NUM_TIDS + 1][6];
330 	u16 cipher;
331 
332 	u32 tx_info;
333 	bool sw_iv;
334 
335 	struct list_head list;
336 	struct idr pktid;
337 
338 	struct mt76_sta_stats stats;
339 };
340 
341 struct mt76_txq {
342 	u16 wcid;
343 
344 	u16 agg_ssn;
345 	bool send_bar;
346 	bool aggr;
347 };
348 
349 struct mt76_txwi_cache {
350 	struct list_head list;
351 	dma_addr_t dma_addr;
352 
353 	union {
354 		struct sk_buff *skb;
355 		void *ptr;
356 	};
357 };
358 
359 struct mt76_rx_tid {
360 	struct rcu_head rcu_head;
361 
362 	struct mt76_dev *dev;
363 
364 	spinlock_t lock;
365 	struct delayed_work reorder_work;
366 
367 	u16 head;
368 	u16 size;
369 	u16 nframes;
370 
371 	u8 num;
372 
373 	u8 started:1, stopped:1, timer_pending:1;
374 
375 	struct sk_buff *reorder_buf[];
376 };
377 
378 #define MT_TX_CB_DMA_DONE		BIT(0)
379 #define MT_TX_CB_TXS_DONE		BIT(1)
380 #define MT_TX_CB_TXS_FAILED		BIT(2)
381 
382 #define MT_PACKET_ID_MASK		GENMASK(6, 0)
383 #define MT_PACKET_ID_NO_ACK		0
384 #define MT_PACKET_ID_NO_SKB		1
385 #define MT_PACKET_ID_WED		2
386 #define MT_PACKET_ID_FIRST		3
387 #define MT_PACKET_ID_HAS_RATE		BIT(7)
388 /* This is timer for when to give up when waiting for TXS callback,
389  * with starting time being the time at which the DMA_DONE callback
390  * was seen (so, we know packet was processed then, it should not take
391  * long after that for firmware to send the TXS callback if it is going
392  * to do so.)
393  */
394 #define MT_TX_STATUS_SKB_TIMEOUT	(HZ / 4)
395 
396 struct mt76_tx_cb {
397 	unsigned long jiffies;
398 	u16 wcid;
399 	u8 pktid;
400 	u8 flags;
401 };
402 
403 enum {
404 	MT76_STATE_INITIALIZED,
405 	MT76_STATE_RUNNING,
406 	MT76_STATE_MCU_RUNNING,
407 	MT76_SCANNING,
408 	MT76_HW_SCANNING,
409 	MT76_HW_SCHED_SCANNING,
410 	MT76_RESTART,
411 	MT76_RESET,
412 	MT76_MCU_RESET,
413 	MT76_REMOVED,
414 	MT76_READING_STATS,
415 	MT76_STATE_POWER_OFF,
416 	MT76_STATE_SUSPEND,
417 	MT76_STATE_ROC,
418 	MT76_STATE_PM,
419 	MT76_STATE_WED_RESET,
420 };
421 
422 struct mt76_hw_cap {
423 	bool has_2ghz;
424 	bool has_5ghz;
425 	bool has_6ghz;
426 };
427 
428 #define MT_DRV_TXWI_NO_FREE		BIT(0)
429 #define MT_DRV_TX_ALIGNED4_SKBS		BIT(1)
430 #define MT_DRV_SW_RX_AIRTIME		BIT(2)
431 #define MT_DRV_RX_DMA_HDR		BIT(3)
432 #define MT_DRV_HW_MGMT_TXQ		BIT(4)
433 #define MT_DRV_AMSDU_OFFLOAD		BIT(5)
434 
435 struct mt76_driver_ops {
436 	u32 drv_flags;
437 	u32 survey_flags;
438 	u16 txwi_size;
439 	u16 token_size;
440 	u8 mcs_rates;
441 
442 	void (*update_survey)(struct mt76_phy *phy);
443 
444 	int (*tx_prepare_skb)(struct mt76_dev *dev, void *txwi_ptr,
445 			      enum mt76_txq_id qid, struct mt76_wcid *wcid,
446 			      struct ieee80211_sta *sta,
447 			      struct mt76_tx_info *tx_info);
448 
449 	void (*tx_complete_skb)(struct mt76_dev *dev,
450 				struct mt76_queue_entry *e);
451 
452 	bool (*tx_status_data)(struct mt76_dev *dev, u8 *update);
453 
454 	bool (*rx_check)(struct mt76_dev *dev, void *data, int len);
455 
456 	void (*rx_skb)(struct mt76_dev *dev, enum mt76_rxq_id q,
457 		       struct sk_buff *skb, u32 *info);
458 
459 	void (*rx_poll_complete)(struct mt76_dev *dev, enum mt76_rxq_id q);
460 
461 	void (*sta_ps)(struct mt76_dev *dev, struct ieee80211_sta *sta,
462 		       bool ps);
463 
464 	int (*sta_add)(struct mt76_dev *dev, struct ieee80211_vif *vif,
465 		       struct ieee80211_sta *sta);
466 
467 	void (*sta_assoc)(struct mt76_dev *dev, struct ieee80211_vif *vif,
468 			  struct ieee80211_sta *sta);
469 
470 	void (*sta_remove)(struct mt76_dev *dev, struct ieee80211_vif *vif,
471 			   struct ieee80211_sta *sta);
472 };
473 
474 struct mt76_channel_state {
475 	u64 cc_active;
476 	u64 cc_busy;
477 	u64 cc_rx;
478 	u64 cc_bss_rx;
479 	u64 cc_tx;
480 
481 	s8 noise;
482 };
483 
484 struct mt76_sband {
485 	struct ieee80211_supported_band sband;
486 	struct mt76_channel_state *chan;
487 };
488 
489 /* addr req mask */
490 #define MT_VEND_TYPE_EEPROM	BIT(31)
491 #define MT_VEND_TYPE_CFG	BIT(30)
492 #define MT_VEND_TYPE_MASK	(MT_VEND_TYPE_EEPROM | MT_VEND_TYPE_CFG)
493 
494 #define MT_VEND_ADDR(type, n)	(MT_VEND_TYPE_##type | (n))
495 enum mt_vendor_req {
496 	MT_VEND_DEV_MODE =	0x1,
497 	MT_VEND_WRITE =		0x2,
498 	MT_VEND_POWER_ON =	0x4,
499 	MT_VEND_MULTI_WRITE =	0x6,
500 	MT_VEND_MULTI_READ =	0x7,
501 	MT_VEND_READ_EEPROM =	0x9,
502 	MT_VEND_WRITE_FCE =	0x42,
503 	MT_VEND_WRITE_CFG =	0x46,
504 	MT_VEND_READ_CFG =	0x47,
505 	MT_VEND_READ_EXT =	0x63,
506 	MT_VEND_WRITE_EXT =	0x66,
507 	MT_VEND_FEATURE_SET =	0x91,
508 };
509 
510 enum mt76u_in_ep {
511 	MT_EP_IN_PKT_RX,
512 	MT_EP_IN_CMD_RESP,
513 	__MT_EP_IN_MAX,
514 };
515 
516 enum mt76u_out_ep {
517 	MT_EP_OUT_INBAND_CMD,
518 	MT_EP_OUT_AC_BE,
519 	MT_EP_OUT_AC_BK,
520 	MT_EP_OUT_AC_VI,
521 	MT_EP_OUT_AC_VO,
522 	MT_EP_OUT_HCCA,
523 	__MT_EP_OUT_MAX,
524 };
525 
526 struct mt76_mcu {
527 	struct mutex mutex;
528 	u32 msg_seq;
529 	int timeout;
530 
531 	struct sk_buff_head res_q;
532 	wait_queue_head_t wait;
533 };
534 
535 #define MT_TX_SG_MAX_SIZE	8
536 #define MT_RX_SG_MAX_SIZE	4
537 #define MT_NUM_TX_ENTRIES	256
538 #define MT_NUM_RX_ENTRIES	128
539 #define MCU_RESP_URB_SIZE	1024
540 struct mt76_usb {
541 	struct mutex usb_ctrl_mtx;
542 	u8 *data;
543 	u16 data_len;
544 
545 	struct mt76_worker status_worker;
546 	struct mt76_worker rx_worker;
547 
548 	struct work_struct stat_work;
549 
550 	u8 out_ep[__MT_EP_OUT_MAX];
551 	u8 in_ep[__MT_EP_IN_MAX];
552 	bool sg_en;
553 
554 	struct mt76u_mcu {
555 		u8 *data;
556 		/* multiple reads */
557 		struct mt76_reg_pair *rp;
558 		int rp_len;
559 		u32 base;
560 	} mcu;
561 };
562 
563 #define MT76S_XMIT_BUF_SZ	0x3fe00
564 #define MT76S_NUM_TX_ENTRIES	256
565 #define MT76S_NUM_RX_ENTRIES	512
566 struct mt76_sdio {
567 	struct mt76_worker txrx_worker;
568 	struct mt76_worker status_worker;
569 	struct mt76_worker net_worker;
570 
571 	struct work_struct stat_work;
572 
573 	u8 *xmit_buf;
574 	u32 xmit_buf_sz;
575 
576 	struct sdio_func *func;
577 	void *intr_data;
578 	u8 hw_ver;
579 	wait_queue_head_t wait;
580 
581 	struct {
582 		int pse_data_quota;
583 		int ple_data_quota;
584 		int pse_mcu_quota;
585 		int pse_page_size;
586 		int deficit;
587 	} sched;
588 
589 	int (*parse_irq)(struct mt76_dev *dev, struct mt76s_intr *intr);
590 };
591 
592 struct mt76_mmio {
593 	void __iomem *regs;
594 	spinlock_t irq_lock;
595 	u32 irqmask;
596 
597 	struct mtk_wed_device wed;
598 	struct completion wed_reset;
599 	struct completion wed_reset_complete;
600 };
601 
602 struct mt76_rx_status {
603 	union {
604 		struct mt76_wcid *wcid;
605 		u16 wcid_idx;
606 	};
607 
608 	u32 reorder_time;
609 
610 	u32 ampdu_ref;
611 	u32 timestamp;
612 
613 	u8 iv[6];
614 
615 	u8 phy_idx:2;
616 	u8 aggr:1;
617 	u8 qos_ctl;
618 	u16 seqno;
619 
620 	u16 freq;
621 	u32 flag;
622 	u8 enc_flags;
623 	u8 encoding:2, bw:3, he_ru:3;
624 	u8 he_gi:2, he_dcm:1;
625 	u8 amsdu:1, first_amsdu:1, last_amsdu:1;
626 	u8 rate_idx;
627 	u8 nss;
628 	u8 band;
629 	s8 signal;
630 	u8 chains;
631 	s8 chain_signal[IEEE80211_MAX_CHAINS];
632 };
633 
634 struct mt76_freq_range_power {
635 	const struct cfg80211_sar_freq_ranges *range;
636 	s8 power;
637 };
638 
639 struct mt76_testmode_ops {
640 	int (*set_state)(struct mt76_phy *phy, enum mt76_testmode_state state);
641 	int (*set_params)(struct mt76_phy *phy, struct nlattr **tb,
642 			  enum mt76_testmode_state new_state);
643 	int (*dump_stats)(struct mt76_phy *phy, struct sk_buff *msg);
644 };
645 
646 struct mt76_testmode_data {
647 	enum mt76_testmode_state state;
648 
649 	u32 param_set[DIV_ROUND_UP(NUM_MT76_TM_ATTRS, 32)];
650 	struct sk_buff *tx_skb;
651 
652 	u32 tx_count;
653 	u16 tx_mpdu_len;
654 
655 	u8 tx_rate_mode;
656 	u8 tx_rate_idx;
657 	u8 tx_rate_nss;
658 	u8 tx_rate_sgi;
659 	u8 tx_rate_ldpc;
660 	u8 tx_rate_stbc;
661 	u8 tx_ltf;
662 
663 	u8 tx_antenna_mask;
664 	u8 tx_spe_idx;
665 
666 	u8 tx_duty_cycle;
667 	u32 tx_time;
668 	u32 tx_ipg;
669 
670 	u32 freq_offset;
671 
672 	u8 tx_power[4];
673 	u8 tx_power_control;
674 
675 	u8 addr[3][ETH_ALEN];
676 
677 	u32 tx_pending;
678 	u32 tx_queued;
679 	u16 tx_queued_limit;
680 	u32 tx_done;
681 	struct {
682 		u64 packets[__MT_RXQ_MAX];
683 		u64 fcs_error[__MT_RXQ_MAX];
684 	} rx_stats;
685 };
686 
687 struct mt76_vif {
688 	u8 idx;
689 	u8 omac_idx;
690 	u8 band_idx;
691 	u8 wmm_idx;
692 	u8 scan_seq_num;
693 	u8 cipher;
694 };
695 
696 struct mt76_phy {
697 	struct ieee80211_hw *hw;
698 	struct mt76_dev *dev;
699 	void *priv;
700 
701 	unsigned long state;
702 	u8 band_idx;
703 
704 	struct mt76_queue *q_tx[__MT_TXQ_MAX];
705 
706 	struct cfg80211_chan_def chandef;
707 	struct ieee80211_channel *main_chan;
708 
709 	struct mt76_channel_state *chan_state;
710 	enum mt76_dfs_state dfs_state;
711 	ktime_t survey_time;
712 
713 	u32 aggr_stats[32];
714 
715 	struct mt76_hw_cap cap;
716 	struct mt76_sband sband_2g;
717 	struct mt76_sband sband_5g;
718 	struct mt76_sband sband_6g;
719 
720 	u8 macaddr[ETH_ALEN];
721 
722 	int txpower_cur;
723 	u8 antenna_mask;
724 	u16 chainmask;
725 
726 #ifdef CONFIG_NL80211_TESTMODE
727 	struct mt76_testmode_data test;
728 #endif
729 
730 	struct delayed_work mac_work;
731 	u8 mac_work_count;
732 
733 	struct {
734 		struct sk_buff *head;
735 		struct sk_buff **tail;
736 		u16 seqno;
737 	} rx_amsdu[__MT_RXQ_MAX];
738 
739 	struct mt76_freq_range_power *frp;
740 
741 	struct {
742 		struct led_classdev cdev;
743 		char name[32];
744 		bool al;
745 		u8 pin;
746 	} leds;
747 };
748 
749 struct mt76_dev {
750 	struct mt76_phy phy; /* must be first */
751 	struct mt76_phy *phys[__MT_MAX_BAND];
752 
753 	struct ieee80211_hw *hw;
754 
755 	spinlock_t wed_lock;
756 	spinlock_t lock;
757 	spinlock_t cc_lock;
758 
759 	u32 cur_cc_bss_rx;
760 
761 	struct mt76_rx_status rx_ampdu_status;
762 	u32 rx_ampdu_len;
763 	u32 rx_ampdu_ref;
764 
765 	struct mutex mutex;
766 
767 	const struct mt76_bus_ops *bus;
768 	const struct mt76_driver_ops *drv;
769 	const struct mt76_mcu_ops *mcu_ops;
770 	struct device *dev;
771 	struct device *dma_dev;
772 
773 	struct mt76_mcu mcu;
774 
775 	struct net_device napi_dev;
776 	struct net_device tx_napi_dev;
777 	spinlock_t rx_lock;
778 	struct napi_struct napi[__MT_RXQ_MAX];
779 	struct sk_buff_head rx_skb[__MT_RXQ_MAX];
780 
781 	struct list_head txwi_cache;
782 	struct list_head rxwi_cache;
783 	struct mt76_queue *q_mcu[__MT_MCUQ_MAX];
784 	struct mt76_queue q_rx[__MT_RXQ_MAX];
785 	const struct mt76_queue_ops *queue_ops;
786 	int tx_dma_idx[4];
787 
788 	struct mt76_worker tx_worker;
789 	struct napi_struct tx_napi;
790 
791 	spinlock_t token_lock;
792 	struct idr token;
793 	u16 wed_token_count;
794 	u16 token_count;
795 	u16 token_size;
796 
797 	spinlock_t rx_token_lock;
798 	struct idr rx_token;
799 	u16 rx_token_size;
800 
801 	wait_queue_head_t tx_wait;
802 	/* spinclock used to protect wcid pktid linked list */
803 	spinlock_t status_lock;
804 
805 	u32 wcid_mask[DIV_ROUND_UP(MT76_N_WCIDS, 32)];
806 	u32 wcid_phy_mask[DIV_ROUND_UP(MT76_N_WCIDS, 32)];
807 
808 	u64 vif_mask;
809 
810 	struct mt76_wcid global_wcid;
811 	struct mt76_wcid __rcu *wcid[MT76_N_WCIDS];
812 	struct list_head wcid_list;
813 
814 	u32 rev;
815 
816 	struct tasklet_struct pre_tbtt_tasklet;
817 	int beacon_int;
818 	u8 beacon_mask;
819 
820 	struct debugfs_blob_wrapper eeprom;
821 	struct debugfs_blob_wrapper otp;
822 
823 	char alpha2[3];
824 	enum nl80211_dfs_regions region;
825 
826 	u32 debugfs_reg;
827 
828 	u8 csa_complete;
829 
830 	u32 rxfilter;
831 
832 #ifdef CONFIG_NL80211_TESTMODE
833 	const struct mt76_testmode_ops *test_ops;
834 	struct {
835 		const char *name;
836 		u32 offset;
837 	} test_mtd;
838 #endif
839 	struct workqueue_struct *wq;
840 
841 	union {
842 		struct mt76_mmio mmio;
843 		struct mt76_usb usb;
844 		struct mt76_sdio sdio;
845 	};
846 };
847 
848 struct mt76_power_limits {
849 	s8 cck[4];
850 	s8 ofdm[8];
851 	s8 mcs[4][10];
852 	s8 ru[7][12];
853 };
854 
855 struct mt76_ethtool_worker_info {
856 	u64 *data;
857 	int idx;
858 	int initial_stat_idx;
859 	int worker_stat_count;
860 	int sta_count;
861 };
862 
863 #define CCK_RATE(_idx, _rate) {					\
864 	.bitrate = _rate,					\
865 	.flags = IEEE80211_RATE_SHORT_PREAMBLE,			\
866 	.hw_value = (MT_PHY_TYPE_CCK << 8) | (_idx),		\
867 	.hw_value_short = (MT_PHY_TYPE_CCK << 8) | (4 + _idx),	\
868 }
869 
870 #define OFDM_RATE(_idx, _rate) {				\
871 	.bitrate = _rate,					\
872 	.hw_value = (MT_PHY_TYPE_OFDM << 8) | (_idx),		\
873 	.hw_value_short = (MT_PHY_TYPE_OFDM << 8) | (_idx),	\
874 }
875 
876 extern struct ieee80211_rate mt76_rates[12];
877 
878 #define __mt76_rr(dev, ...)	(dev)->bus->rr((dev), __VA_ARGS__)
879 #define __mt76_wr(dev, ...)	(dev)->bus->wr((dev), __VA_ARGS__)
880 #define __mt76_rmw(dev, ...)	(dev)->bus->rmw((dev), __VA_ARGS__)
881 #define __mt76_wr_copy(dev, ...)	(dev)->bus->write_copy((dev), __VA_ARGS__)
882 #define __mt76_rr_copy(dev, ...)	(dev)->bus->read_copy((dev), __VA_ARGS__)
883 
884 #define __mt76_set(dev, offset, val)	__mt76_rmw(dev, offset, 0, val)
885 #define __mt76_clear(dev, offset, val)	__mt76_rmw(dev, offset, val, 0)
886 
887 #define mt76_rr(dev, ...)	(dev)->mt76.bus->rr(&((dev)->mt76), __VA_ARGS__)
888 #define mt76_wr(dev, ...)	(dev)->mt76.bus->wr(&((dev)->mt76), __VA_ARGS__)
889 #define mt76_rmw(dev, ...)	(dev)->mt76.bus->rmw(&((dev)->mt76), __VA_ARGS__)
890 #define mt76_wr_copy(dev, ...)	(dev)->mt76.bus->write_copy(&((dev)->mt76), __VA_ARGS__)
891 #define mt76_rr_copy(dev, ...)	(dev)->mt76.bus->read_copy(&((dev)->mt76), __VA_ARGS__)
892 #define mt76_wr_rp(dev, ...)	(dev)->mt76.bus->wr_rp(&((dev)->mt76), __VA_ARGS__)
893 #define mt76_rd_rp(dev, ...)	(dev)->mt76.bus->rd_rp(&((dev)->mt76), __VA_ARGS__)
894 
895 
896 #define mt76_mcu_restart(dev, ...)	(dev)->mt76.mcu_ops->mcu_restart(&((dev)->mt76))
897 
898 #define mt76_set(dev, offset, val)	mt76_rmw(dev, offset, 0, val)
899 #define mt76_clear(dev, offset, val)	mt76_rmw(dev, offset, val, 0)
900 
901 #define mt76_get_field(_dev, _reg, _field)		\
902 	FIELD_GET(_field, mt76_rr(dev, _reg))
903 
904 #define mt76_rmw_field(_dev, _reg, _field, _val)	\
905 	mt76_rmw(_dev, _reg, _field, FIELD_PREP(_field, _val))
906 
907 #define __mt76_rmw_field(_dev, _reg, _field, _val)	\
908 	__mt76_rmw(_dev, _reg, _field, FIELD_PREP(_field, _val))
909 
910 #define mt76_hw(dev) (dev)->mphy.hw
911 
912 bool __mt76_poll(struct mt76_dev *dev, u32 offset, u32 mask, u32 val,
913 		 int timeout);
914 
915 #define mt76_poll(dev, ...) __mt76_poll(&((dev)->mt76), __VA_ARGS__)
916 
917 bool ____mt76_poll_msec(struct mt76_dev *dev, u32 offset, u32 mask, u32 val,
918 			int timeout, int kick);
919 #define __mt76_poll_msec(...)         ____mt76_poll_msec(__VA_ARGS__, 10)
920 #define mt76_poll_msec(dev, ...)      ____mt76_poll_msec(&((dev)->mt76), __VA_ARGS__, 10)
921 #define mt76_poll_msec_tick(dev, ...) ____mt76_poll_msec(&((dev)->mt76), __VA_ARGS__)
922 
923 void mt76_mmio_init(struct mt76_dev *dev, void __iomem *regs);
924 void mt76_pci_disable_aspm(struct pci_dev *pdev);
925 
mt76_chip(struct mt76_dev * dev)926 static inline u16 mt76_chip(struct mt76_dev *dev)
927 {
928 	return dev->rev >> 16;
929 }
930 
mt76_rev(struct mt76_dev * dev)931 static inline u16 mt76_rev(struct mt76_dev *dev)
932 {
933 	return dev->rev & 0xffff;
934 }
935 
936 #define mt76xx_chip(dev) mt76_chip(&((dev)->mt76))
937 #define mt76xx_rev(dev) mt76_rev(&((dev)->mt76))
938 
939 #define mt76_init_queues(dev, ...)		(dev)->mt76.queue_ops->init(&((dev)->mt76), __VA_ARGS__)
940 #define mt76_queue_alloc(dev, ...)	(dev)->mt76.queue_ops->alloc(&((dev)->mt76), __VA_ARGS__)
941 #define mt76_tx_queue_skb_raw(dev, ...)	(dev)->mt76.queue_ops->tx_queue_skb_raw(&((dev)->mt76), __VA_ARGS__)
942 #define mt76_tx_queue_skb(dev, ...)	(dev)->mt76.queue_ops->tx_queue_skb(&((dev)->mt76), __VA_ARGS__)
943 #define mt76_queue_rx_reset(dev, ...)	(dev)->mt76.queue_ops->rx_reset(&((dev)->mt76), __VA_ARGS__)
944 #define mt76_queue_tx_cleanup(dev, ...)	(dev)->mt76.queue_ops->tx_cleanup(&((dev)->mt76), __VA_ARGS__)
945 #define mt76_queue_rx_cleanup(dev, ...)	(dev)->mt76.queue_ops->rx_cleanup(&((dev)->mt76), __VA_ARGS__)
946 #define mt76_queue_kick(dev, ...)	(dev)->mt76.queue_ops->kick(&((dev)->mt76), __VA_ARGS__)
947 #define mt76_queue_reset(dev, ...)	(dev)->mt76.queue_ops->reset_q(&((dev)->mt76), __VA_ARGS__)
948 
949 #define mt76_for_each_q_rx(dev, i)	\
950 	for (i = 0; i < ARRAY_SIZE((dev)->q_rx); i++)	\
951 		if ((dev)->q_rx[i].ndesc)
952 
953 struct mt76_dev *mt76_alloc_device(struct device *pdev, unsigned int size,
954 				   const struct ieee80211_ops *ops,
955 				   const struct mt76_driver_ops *drv_ops);
956 int mt76_register_device(struct mt76_dev *dev, bool vht,
957 			 struct ieee80211_rate *rates, int n_rates);
958 void mt76_unregister_device(struct mt76_dev *dev);
959 void mt76_free_device(struct mt76_dev *dev);
960 void mt76_unregister_phy(struct mt76_phy *phy);
961 
962 struct mt76_phy *mt76_alloc_phy(struct mt76_dev *dev, unsigned int size,
963 				const struct ieee80211_ops *ops,
964 				u8 band_idx);
965 int mt76_register_phy(struct mt76_phy *phy, bool vht,
966 		      struct ieee80211_rate *rates, int n_rates);
967 
968 struct dentry *mt76_register_debugfs_fops(struct mt76_phy *phy,
969 					  const struct file_operations *ops);
mt76_register_debugfs(struct mt76_dev * dev)970 static inline struct dentry *mt76_register_debugfs(struct mt76_dev *dev)
971 {
972 	return mt76_register_debugfs_fops(&dev->phy, NULL);
973 }
974 
975 int mt76_queues_read(struct seq_file *s, void *data);
976 void mt76_seq_puts_array(struct seq_file *file, const char *str,
977 			 s8 *val, int len);
978 
979 int mt76_eeprom_init(struct mt76_dev *dev, int len);
980 void mt76_eeprom_override(struct mt76_phy *phy);
981 int mt76_get_of_eeprom(struct mt76_dev *dev, void *data, int offset, int len);
982 
983 struct mt76_queue *
984 mt76_init_queue(struct mt76_dev *dev, int qid, int idx, int n_desc,
985 		int ring_base, u32 flags);
986 u16 mt76_calculate_default_rate(struct mt76_phy *phy, int rateidx);
mt76_init_tx_queue(struct mt76_phy * phy,int qid,int idx,int n_desc,int ring_base,u32 flags)987 static inline int mt76_init_tx_queue(struct mt76_phy *phy, int qid, int idx,
988 				     int n_desc, int ring_base, u32 flags)
989 {
990 	struct mt76_queue *q;
991 
992 	q = mt76_init_queue(phy->dev, qid, idx, n_desc, ring_base, flags);
993 	if (IS_ERR(q))
994 		return PTR_ERR(q);
995 
996 	phy->q_tx[qid] = q;
997 
998 	return 0;
999 }
1000 
mt76_init_mcu_queue(struct mt76_dev * dev,int qid,int idx,int n_desc,int ring_base)1001 static inline int mt76_init_mcu_queue(struct mt76_dev *dev, int qid, int idx,
1002 				      int n_desc, int ring_base)
1003 {
1004 	struct mt76_queue *q;
1005 
1006 	q = mt76_init_queue(dev, qid, idx, n_desc, ring_base, 0);
1007 	if (IS_ERR(q))
1008 		return PTR_ERR(q);
1009 
1010 	dev->q_mcu[qid] = q;
1011 
1012 	return 0;
1013 }
1014 
1015 static inline struct mt76_phy *
mt76_dev_phy(struct mt76_dev * dev,u8 phy_idx)1016 mt76_dev_phy(struct mt76_dev *dev, u8 phy_idx)
1017 {
1018 	if ((phy_idx == MT_BAND1 && dev->phys[phy_idx]) ||
1019 	    (phy_idx == MT_BAND2 && dev->phys[phy_idx]))
1020 		return dev->phys[phy_idx];
1021 
1022 	return &dev->phy;
1023 }
1024 
1025 static inline struct ieee80211_hw *
mt76_phy_hw(struct mt76_dev * dev,u8 phy_idx)1026 mt76_phy_hw(struct mt76_dev *dev, u8 phy_idx)
1027 {
1028 	return mt76_dev_phy(dev, phy_idx)->hw;
1029 }
1030 
1031 static inline u8 *
mt76_get_txwi_ptr(struct mt76_dev * dev,struct mt76_txwi_cache * t)1032 mt76_get_txwi_ptr(struct mt76_dev *dev, struct mt76_txwi_cache *t)
1033 {
1034 	return (u8 *)t - dev->drv->txwi_size;
1035 }
1036 
1037 /* increment with wrap-around */
mt76_incr(int val,int size)1038 static inline int mt76_incr(int val, int size)
1039 {
1040 	return (val + 1) & (size - 1);
1041 }
1042 
1043 /* decrement with wrap-around */
mt76_decr(int val,int size)1044 static inline int mt76_decr(int val, int size)
1045 {
1046 	return (val - 1) & (size - 1);
1047 }
1048 
1049 u8 mt76_ac_to_hwq(u8 ac);
1050 
1051 static inline struct ieee80211_txq *
mtxq_to_txq(struct mt76_txq * mtxq)1052 mtxq_to_txq(struct mt76_txq *mtxq)
1053 {
1054 	void *ptr = mtxq;
1055 
1056 	return container_of(ptr, struct ieee80211_txq, drv_priv);
1057 }
1058 
1059 static inline struct ieee80211_sta *
wcid_to_sta(struct mt76_wcid * wcid)1060 wcid_to_sta(struct mt76_wcid *wcid)
1061 {
1062 	void *ptr = wcid;
1063 
1064 	if (!wcid || !wcid->sta)
1065 		return NULL;
1066 
1067 	return container_of(ptr, struct ieee80211_sta, drv_priv);
1068 }
1069 
mt76_tx_skb_cb(struct sk_buff * skb)1070 static inline struct mt76_tx_cb *mt76_tx_skb_cb(struct sk_buff *skb)
1071 {
1072 	BUILD_BUG_ON(sizeof(struct mt76_tx_cb) >
1073 		     sizeof(IEEE80211_SKB_CB(skb)->status.status_driver_data));
1074 	return ((void *)IEEE80211_SKB_CB(skb)->status.status_driver_data);
1075 }
1076 
mt76_skb_get_hdr(struct sk_buff * skb)1077 static inline void *mt76_skb_get_hdr(struct sk_buff *skb)
1078 {
1079 	struct mt76_rx_status mstat;
1080 	u8 *data = skb->data;
1081 
1082 	/* Alignment concerns */
1083 	BUILD_BUG_ON(sizeof(struct ieee80211_radiotap_he) % 4);
1084 	BUILD_BUG_ON(sizeof(struct ieee80211_radiotap_he_mu) % 4);
1085 
1086 	mstat = *((struct mt76_rx_status *)skb->cb);
1087 
1088 	if (mstat.flag & RX_FLAG_RADIOTAP_HE)
1089 		data += sizeof(struct ieee80211_radiotap_he);
1090 	if (mstat.flag & RX_FLAG_RADIOTAP_HE_MU)
1091 		data += sizeof(struct ieee80211_radiotap_he_mu);
1092 
1093 	return data;
1094 }
1095 
mt76_insert_hdr_pad(struct sk_buff * skb)1096 static inline void mt76_insert_hdr_pad(struct sk_buff *skb)
1097 {
1098 	int len = ieee80211_get_hdrlen_from_skb(skb);
1099 
1100 	if (len % 4 == 0)
1101 		return;
1102 
1103 	skb_push(skb, 2);
1104 	memmove(skb->data, skb->data + 2, len);
1105 
1106 	skb->data[len] = 0;
1107 	skb->data[len + 1] = 0;
1108 }
1109 
mt76_is_skb_pktid(u8 pktid)1110 static inline bool mt76_is_skb_pktid(u8 pktid)
1111 {
1112 	if (pktid & MT_PACKET_ID_HAS_RATE)
1113 		return false;
1114 
1115 	return pktid >= MT_PACKET_ID_FIRST;
1116 }
1117 
mt76_tx_power_nss_delta(u8 nss)1118 static inline u8 mt76_tx_power_nss_delta(u8 nss)
1119 {
1120 	static const u8 nss_delta[4] = { 0, 6, 9, 12 };
1121 	u8 idx = nss - 1;
1122 
1123 	return (idx < ARRAY_SIZE(nss_delta)) ? nss_delta[idx] : 0;
1124 }
1125 
mt76_testmode_enabled(struct mt76_phy * phy)1126 static inline bool mt76_testmode_enabled(struct mt76_phy *phy)
1127 {
1128 #ifdef CONFIG_NL80211_TESTMODE
1129 	return phy->test.state != MT76_TM_STATE_OFF;
1130 #else
1131 	return false;
1132 #endif
1133 }
1134 
mt76_is_testmode_skb(struct mt76_dev * dev,struct sk_buff * skb,struct ieee80211_hw ** hw)1135 static inline bool mt76_is_testmode_skb(struct mt76_dev *dev,
1136 					struct sk_buff *skb,
1137 					struct ieee80211_hw **hw)
1138 {
1139 #ifdef CONFIG_NL80211_TESTMODE
1140 	int i;
1141 
1142 	for (i = 0; i < ARRAY_SIZE(dev->phys); i++) {
1143 		struct mt76_phy *phy = dev->phys[i];
1144 
1145 		if (phy && skb == phy->test.tx_skb) {
1146 			*hw = dev->phys[i]->hw;
1147 			return true;
1148 		}
1149 	}
1150 	return false;
1151 #else
1152 	return false;
1153 #endif
1154 }
1155 
1156 void mt76_rx(struct mt76_dev *dev, enum mt76_rxq_id q, struct sk_buff *skb);
1157 void mt76_tx(struct mt76_phy *dev, struct ieee80211_sta *sta,
1158 	     struct mt76_wcid *wcid, struct sk_buff *skb);
1159 void mt76_wake_tx_queue(struct ieee80211_hw *hw, struct ieee80211_txq *txq);
1160 void mt76_stop_tx_queues(struct mt76_phy *phy, struct ieee80211_sta *sta,
1161 			 bool send_bar);
1162 void mt76_tx_check_agg_ssn(struct ieee80211_sta *sta, struct sk_buff *skb);
1163 void mt76_txq_schedule(struct mt76_phy *phy, enum mt76_txq_id qid);
1164 void mt76_txq_schedule_all(struct mt76_phy *phy);
1165 void mt76_tx_worker_run(struct mt76_dev *dev);
1166 void mt76_tx_worker(struct mt76_worker *w);
1167 void mt76_release_buffered_frames(struct ieee80211_hw *hw,
1168 				  struct ieee80211_sta *sta,
1169 				  u16 tids, int nframes,
1170 				  enum ieee80211_frame_release_type reason,
1171 				  bool more_data);
1172 bool mt76_has_tx_pending(struct mt76_phy *phy);
1173 void mt76_set_channel(struct mt76_phy *phy);
1174 void mt76_update_survey(struct mt76_phy *phy);
1175 void mt76_update_survey_active_time(struct mt76_phy *phy, ktime_t time);
1176 int mt76_get_survey(struct ieee80211_hw *hw, int idx,
1177 		    struct survey_info *survey);
1178 int mt76_rx_signal(u8 chain_mask, s8 *chain_signal);
1179 void mt76_set_stream_caps(struct mt76_phy *phy, bool vht);
1180 
1181 int mt76_rx_aggr_start(struct mt76_dev *dev, struct mt76_wcid *wcid, u8 tid,
1182 		       u16 ssn, u16 size);
1183 void mt76_rx_aggr_stop(struct mt76_dev *dev, struct mt76_wcid *wcid, u8 tid);
1184 
1185 void mt76_wcid_key_setup(struct mt76_dev *dev, struct mt76_wcid *wcid,
1186 			 struct ieee80211_key_conf *key);
1187 
1188 void mt76_tx_status_lock(struct mt76_dev *dev, struct sk_buff_head *list)
1189 			 __acquires(&dev->status_lock);
1190 void mt76_tx_status_unlock(struct mt76_dev *dev, struct sk_buff_head *list)
1191 			   __releases(&dev->status_lock);
1192 
1193 int mt76_tx_status_skb_add(struct mt76_dev *dev, struct mt76_wcid *wcid,
1194 			   struct sk_buff *skb);
1195 struct sk_buff *mt76_tx_status_skb_get(struct mt76_dev *dev,
1196 				       struct mt76_wcid *wcid, int pktid,
1197 				       struct sk_buff_head *list);
1198 void mt76_tx_status_skb_done(struct mt76_dev *dev, struct sk_buff *skb,
1199 			     struct sk_buff_head *list);
1200 void __mt76_tx_complete_skb(struct mt76_dev *dev, u16 wcid, struct sk_buff *skb,
1201 			    struct list_head *free_list);
1202 static inline void
mt76_tx_complete_skb(struct mt76_dev * dev,u16 wcid,struct sk_buff * skb)1203 mt76_tx_complete_skb(struct mt76_dev *dev, u16 wcid, struct sk_buff *skb)
1204 {
1205     __mt76_tx_complete_skb(dev, wcid, skb, NULL);
1206 }
1207 
1208 void mt76_tx_status_check(struct mt76_dev *dev, bool flush);
1209 int mt76_sta_state(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1210 		   struct ieee80211_sta *sta,
1211 		   enum ieee80211_sta_state old_state,
1212 		   enum ieee80211_sta_state new_state);
1213 void __mt76_sta_remove(struct mt76_dev *dev, struct ieee80211_vif *vif,
1214 		       struct ieee80211_sta *sta);
1215 void mt76_sta_pre_rcu_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1216 			     struct ieee80211_sta *sta);
1217 
1218 int mt76_get_min_avg_rssi(struct mt76_dev *dev, bool ext_phy);
1219 
1220 int mt76_get_txpower(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1221 		     int *dbm);
1222 int mt76_init_sar_power(struct ieee80211_hw *hw,
1223 			const struct cfg80211_sar_specs *sar);
1224 int mt76_get_sar_power(struct mt76_phy *phy,
1225 		       struct ieee80211_channel *chan,
1226 		       int power);
1227 
1228 void mt76_csa_check(struct mt76_dev *dev);
1229 void mt76_csa_finish(struct mt76_dev *dev);
1230 
1231 int mt76_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant);
1232 int mt76_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set);
1233 void mt76_insert_ccmp_hdr(struct sk_buff *skb, u8 key_id);
1234 int mt76_get_rate(struct mt76_dev *dev,
1235 		  struct ieee80211_supported_band *sband,
1236 		  int idx, bool cck);
1237 void mt76_sw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1238 		  const u8 *mac);
1239 void mt76_sw_scan_complete(struct ieee80211_hw *hw,
1240 			   struct ieee80211_vif *vif);
1241 enum mt76_dfs_state mt76_phy_dfs_state(struct mt76_phy *phy);
1242 int mt76_testmode_cmd(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1243 		      void *data, int len);
1244 int mt76_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb,
1245 		       struct netlink_callback *cb, void *data, int len);
1246 int mt76_testmode_set_state(struct mt76_phy *phy, enum mt76_testmode_state state);
1247 int mt76_testmode_alloc_skb(struct mt76_phy *phy, u32 len);
1248 
mt76_testmode_reset(struct mt76_phy * phy,bool disable)1249 static inline void mt76_testmode_reset(struct mt76_phy *phy, bool disable)
1250 {
1251 #ifdef CONFIG_NL80211_TESTMODE
1252 	enum mt76_testmode_state state = MT76_TM_STATE_IDLE;
1253 
1254 	if (disable || phy->test.state == MT76_TM_STATE_OFF)
1255 		state = MT76_TM_STATE_OFF;
1256 
1257 	mt76_testmode_set_state(phy, state);
1258 #endif
1259 }
1260 
1261 
1262 /* internal */
1263 static inline struct ieee80211_hw *
mt76_tx_status_get_hw(struct mt76_dev * dev,struct sk_buff * skb)1264 mt76_tx_status_get_hw(struct mt76_dev *dev, struct sk_buff *skb)
1265 {
1266 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1267 	u8 phy_idx = (info->hw_queue & MT_TX_HW_QUEUE_PHY) >> 2;
1268 	struct ieee80211_hw *hw = mt76_phy_hw(dev, phy_idx);
1269 
1270 	info->hw_queue &= ~MT_TX_HW_QUEUE_PHY;
1271 
1272 	return hw;
1273 }
1274 
1275 void mt76_put_txwi(struct mt76_dev *dev, struct mt76_txwi_cache *t);
1276 void mt76_put_rxwi(struct mt76_dev *dev, struct mt76_txwi_cache *t);
1277 struct mt76_txwi_cache *mt76_get_rxwi(struct mt76_dev *dev);
1278 void mt76_free_pending_rxwi(struct mt76_dev *dev);
1279 void mt76_rx_complete(struct mt76_dev *dev, struct sk_buff_head *frames,
1280 		      struct napi_struct *napi);
1281 void mt76_rx_poll_complete(struct mt76_dev *dev, enum mt76_rxq_id q,
1282 			   struct napi_struct *napi);
1283 void mt76_rx_aggr_reorder(struct sk_buff *skb, struct sk_buff_head *frames);
1284 void mt76_testmode_tx_pending(struct mt76_phy *phy);
1285 void mt76_queue_tx_complete(struct mt76_dev *dev, struct mt76_queue *q,
1286 			    struct mt76_queue_entry *e);
1287 
1288 /* usb */
mt76u_urb_error(struct urb * urb)1289 static inline bool mt76u_urb_error(struct urb *urb)
1290 {
1291 	return urb->status &&
1292 	       urb->status != -ECONNRESET &&
1293 	       urb->status != -ESHUTDOWN &&
1294 	       urb->status != -ENOENT;
1295 }
1296 
1297 /* Map hardware queues to usb endpoints */
q2ep(u8 qid)1298 static inline u8 q2ep(u8 qid)
1299 {
1300 	/* TODO: take management packets to queue 5 */
1301 	return qid + 1;
1302 }
1303 
1304 static inline int
mt76u_bulk_msg(struct mt76_dev * dev,void * data,int len,int * actual_len,int timeout,int ep)1305 mt76u_bulk_msg(struct mt76_dev *dev, void *data, int len, int *actual_len,
1306 	       int timeout, int ep)
1307 {
1308 	struct usb_interface *uintf = to_usb_interface(dev->dev);
1309 	struct usb_device *udev = interface_to_usbdev(uintf);
1310 	struct mt76_usb *usb = &dev->usb;
1311 	unsigned int pipe;
1312 
1313 	if (actual_len)
1314 		pipe = usb_rcvbulkpipe(udev, usb->in_ep[ep]);
1315 	else
1316 		pipe = usb_sndbulkpipe(udev, usb->out_ep[ep]);
1317 
1318 	return usb_bulk_msg(udev, pipe, data, len, actual_len, timeout);
1319 }
1320 
1321 void mt76_ethtool_page_pool_stats(struct mt76_dev *dev, u64 *data, int *index);
1322 void mt76_ethtool_worker(struct mt76_ethtool_worker_info *wi,
1323 			 struct mt76_sta_stats *stats, bool eht);
1324 int mt76_skb_adjust_pad(struct sk_buff *skb, int pad);
1325 int __mt76u_vendor_request(struct mt76_dev *dev, u8 req, u8 req_type,
1326 			   u16 val, u16 offset, void *buf, size_t len);
1327 int mt76u_vendor_request(struct mt76_dev *dev, u8 req,
1328 			 u8 req_type, u16 val, u16 offset,
1329 			 void *buf, size_t len);
1330 void mt76u_single_wr(struct mt76_dev *dev, const u8 req,
1331 		     const u16 offset, const u32 val);
1332 void mt76u_read_copy(struct mt76_dev *dev, u32 offset,
1333 		     void *data, int len);
1334 u32 ___mt76u_rr(struct mt76_dev *dev, u8 req, u8 req_type, u32 addr);
1335 void ___mt76u_wr(struct mt76_dev *dev, u8 req, u8 req_type,
1336 		 u32 addr, u32 val);
1337 int __mt76u_init(struct mt76_dev *dev, struct usb_interface *intf,
1338 		 struct mt76_bus_ops *ops);
1339 int mt76u_init(struct mt76_dev *dev, struct usb_interface *intf);
1340 int mt76u_alloc_mcu_queue(struct mt76_dev *dev);
1341 int mt76u_alloc_queues(struct mt76_dev *dev);
1342 void mt76u_stop_tx(struct mt76_dev *dev);
1343 void mt76u_stop_rx(struct mt76_dev *dev);
1344 int mt76u_resume_rx(struct mt76_dev *dev);
1345 void mt76u_queues_deinit(struct mt76_dev *dev);
1346 
1347 int mt76s_init(struct mt76_dev *dev, struct sdio_func *func,
1348 	       const struct mt76_bus_ops *bus_ops);
1349 int mt76s_alloc_rx_queue(struct mt76_dev *dev, enum mt76_rxq_id qid);
1350 int mt76s_alloc_tx(struct mt76_dev *dev);
1351 void mt76s_deinit(struct mt76_dev *dev);
1352 void mt76s_sdio_irq(struct sdio_func *func);
1353 void mt76s_txrx_worker(struct mt76_sdio *sdio);
1354 bool mt76s_txqs_empty(struct mt76_dev *dev);
1355 int mt76s_hw_init(struct mt76_dev *dev, struct sdio_func *func,
1356 		  int hw_ver);
1357 u32 mt76s_rr(struct mt76_dev *dev, u32 offset);
1358 void mt76s_wr(struct mt76_dev *dev, u32 offset, u32 val);
1359 u32 mt76s_rmw(struct mt76_dev *dev, u32 offset, u32 mask, u32 val);
1360 u32 mt76s_read_pcr(struct mt76_dev *dev);
1361 void mt76s_write_copy(struct mt76_dev *dev, u32 offset,
1362 		      const void *data, int len);
1363 void mt76s_read_copy(struct mt76_dev *dev, u32 offset,
1364 		     void *data, int len);
1365 int mt76s_wr_rp(struct mt76_dev *dev, u32 base,
1366 		const struct mt76_reg_pair *data,
1367 		int len);
1368 int mt76s_rd_rp(struct mt76_dev *dev, u32 base,
1369 		struct mt76_reg_pair *data, int len);
1370 
1371 struct sk_buff *
1372 __mt76_mcu_msg_alloc(struct mt76_dev *dev, const void *data,
1373 		     int len, int data_len, gfp_t gfp);
1374 static inline struct sk_buff *
mt76_mcu_msg_alloc(struct mt76_dev * dev,const void * data,int data_len)1375 mt76_mcu_msg_alloc(struct mt76_dev *dev, const void *data,
1376 		   int data_len)
1377 {
1378 	return __mt76_mcu_msg_alloc(dev, data, data_len, data_len, GFP_KERNEL);
1379 }
1380 
1381 void mt76_mcu_rx_event(struct mt76_dev *dev, struct sk_buff *skb);
1382 struct sk_buff *mt76_mcu_get_response(struct mt76_dev *dev,
1383 				      unsigned long expires);
1384 int mt76_mcu_send_and_get_msg(struct mt76_dev *dev, int cmd, const void *data,
1385 			      int len, bool wait_resp, struct sk_buff **ret);
1386 int mt76_mcu_skb_send_and_get_msg(struct mt76_dev *dev, struct sk_buff *skb,
1387 				  int cmd, bool wait_resp, struct sk_buff **ret);
1388 int __mt76_mcu_send_firmware(struct mt76_dev *dev, int cmd, const void *data,
1389 			     int len, int max_len);
1390 static inline int
mt76_mcu_send_firmware(struct mt76_dev * dev,int cmd,const void * data,int len)1391 mt76_mcu_send_firmware(struct mt76_dev *dev, int cmd, const void *data,
1392 		       int len)
1393 {
1394 	int max_len = 4096 - dev->mcu_ops->headroom;
1395 
1396 	return __mt76_mcu_send_firmware(dev, cmd, data, len, max_len);
1397 }
1398 
1399 static inline int
mt76_mcu_send_msg(struct mt76_dev * dev,int cmd,const void * data,int len,bool wait_resp)1400 mt76_mcu_send_msg(struct mt76_dev *dev, int cmd, const void *data, int len,
1401 		  bool wait_resp)
1402 {
1403 	return mt76_mcu_send_and_get_msg(dev, cmd, data, len, wait_resp, NULL);
1404 }
1405 
1406 static inline int
mt76_mcu_skb_send_msg(struct mt76_dev * dev,struct sk_buff * skb,int cmd,bool wait_resp)1407 mt76_mcu_skb_send_msg(struct mt76_dev *dev, struct sk_buff *skb, int cmd,
1408 		      bool wait_resp)
1409 {
1410 	return mt76_mcu_skb_send_and_get_msg(dev, skb, cmd, wait_resp, NULL);
1411 }
1412 
1413 void mt76_set_irq_mask(struct mt76_dev *dev, u32 addr, u32 clear, u32 set);
1414 
1415 s8 mt76_get_rate_power_limits(struct mt76_phy *phy,
1416 			      struct ieee80211_channel *chan,
1417 			      struct mt76_power_limits *dest,
1418 			      s8 target_power);
1419 
mt76_queue_is_wed_rx(struct mt76_queue * q)1420 static inline bool mt76_queue_is_wed_rx(struct mt76_queue *q)
1421 {
1422 	return (q->flags & MT_QFLAG_WED) &&
1423 	       FIELD_GET(MT_QFLAG_WED_TYPE, q->flags) == MT76_WED_Q_RX;
1424 }
1425 
1426 struct mt76_txwi_cache *
1427 mt76_token_release(struct mt76_dev *dev, int token, bool *wake);
1428 int mt76_token_consume(struct mt76_dev *dev, struct mt76_txwi_cache **ptxwi);
1429 void __mt76_set_tx_blocked(struct mt76_dev *dev, bool blocked);
1430 struct mt76_txwi_cache *mt76_rx_token_release(struct mt76_dev *dev, int token);
1431 int mt76_rx_token_consume(struct mt76_dev *dev, void *ptr,
1432 			  struct mt76_txwi_cache *r, dma_addr_t phys);
1433 int mt76_create_page_pool(struct mt76_dev *dev, struct mt76_queue *q);
mt76_put_page_pool_buf(void * buf,bool allow_direct)1434 static inline void mt76_put_page_pool_buf(void *buf, bool allow_direct)
1435 {
1436 	struct page *page = virt_to_head_page(buf);
1437 
1438 	page_pool_put_full_page(page->pp, page, allow_direct);
1439 }
1440 
1441 static inline void *
mt76_get_page_pool_buf(struct mt76_queue * q,u32 * offset,u32 size)1442 mt76_get_page_pool_buf(struct mt76_queue *q, u32 *offset, u32 size)
1443 {
1444 	struct page *page;
1445 
1446 	page = page_pool_dev_alloc_frag(q->page_pool, offset, size);
1447 	if (!page)
1448 		return NULL;
1449 
1450 	return page_address(page) + *offset;
1451 }
1452 
mt76_set_tx_blocked(struct mt76_dev * dev,bool blocked)1453 static inline void mt76_set_tx_blocked(struct mt76_dev *dev, bool blocked)
1454 {
1455 	spin_lock_bh(&dev->token_lock);
1456 	__mt76_set_tx_blocked(dev, blocked);
1457 	spin_unlock_bh(&dev->token_lock);
1458 }
1459 
1460 static inline int
mt76_token_get(struct mt76_dev * dev,struct mt76_txwi_cache ** ptxwi)1461 mt76_token_get(struct mt76_dev *dev, struct mt76_txwi_cache **ptxwi)
1462 {
1463 	int token;
1464 
1465 	spin_lock_bh(&dev->token_lock);
1466 	token = idr_alloc(&dev->token, *ptxwi, 0, dev->token_size, GFP_ATOMIC);
1467 	spin_unlock_bh(&dev->token_lock);
1468 
1469 	return token;
1470 }
1471 
1472 static inline struct mt76_txwi_cache *
mt76_token_put(struct mt76_dev * dev,int token)1473 mt76_token_put(struct mt76_dev *dev, int token)
1474 {
1475 	struct mt76_txwi_cache *txwi;
1476 
1477 	spin_lock_bh(&dev->token_lock);
1478 	txwi = idr_remove(&dev->token, token);
1479 	spin_unlock_bh(&dev->token_lock);
1480 
1481 	return txwi;
1482 }
1483 
mt76_packet_id_init(struct mt76_wcid * wcid)1484 static inline void mt76_packet_id_init(struct mt76_wcid *wcid)
1485 {
1486 	INIT_LIST_HEAD(&wcid->list);
1487 	idr_init(&wcid->pktid);
1488 }
1489 
1490 static inline void
mt76_packet_id_flush(struct mt76_dev * dev,struct mt76_wcid * wcid)1491 mt76_packet_id_flush(struct mt76_dev *dev, struct mt76_wcid *wcid)
1492 {
1493 	struct sk_buff_head list;
1494 
1495 	mt76_tx_status_lock(dev, &list);
1496 	mt76_tx_status_skb_get(dev, wcid, -1, &list);
1497 	mt76_tx_status_unlock(dev, &list);
1498 
1499 	idr_destroy(&wcid->pktid);
1500 }
1501 
1502 #endif
1503