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 <net/mac80211.h>
17 #include "util.h"
18 #include "testmode.h"
19
20 #define MT_MCU_RING_SIZE 32
21 #define MT_RX_BUF_SIZE 2048
22 #define MT_SKB_HEAD_LEN 128
23
24 #define MT_MAX_NON_AQL_PKT 16
25 #define MT_TXQ_FREE_THR 32
26
27 struct mt76_dev;
28 struct mt76_phy;
29 struct mt76_wcid;
30
31 struct mt76_reg_pair {
32 u32 reg;
33 u32 value;
34 };
35
36 enum mt76_bus_type {
37 MT76_BUS_MMIO,
38 MT76_BUS_USB,
39 MT76_BUS_SDIO,
40 };
41
42 struct mt76_bus_ops {
43 u32 (*rr)(struct mt76_dev *dev, u32 offset);
44 void (*wr)(struct mt76_dev *dev, u32 offset, u32 val);
45 u32 (*rmw)(struct mt76_dev *dev, u32 offset, u32 mask, u32 val);
46 void (*write_copy)(struct mt76_dev *dev, u32 offset, const void *data,
47 int len);
48 void (*read_copy)(struct mt76_dev *dev, u32 offset, void *data,
49 int len);
50 int (*wr_rp)(struct mt76_dev *dev, u32 base,
51 const struct mt76_reg_pair *rp, int len);
52 int (*rd_rp)(struct mt76_dev *dev, u32 base,
53 struct mt76_reg_pair *rp, int len);
54 enum mt76_bus_type type;
55 };
56
57 #define mt76_is_usb(dev) ((dev)->bus->type == MT76_BUS_USB)
58 #define mt76_is_mmio(dev) ((dev)->bus->type == MT76_BUS_MMIO)
59 #define mt76_is_sdio(dev) ((dev)->bus->type == MT76_BUS_SDIO)
60
61 enum mt76_txq_id {
62 MT_TXQ_VO = IEEE80211_AC_VO,
63 MT_TXQ_VI = IEEE80211_AC_VI,
64 MT_TXQ_BE = IEEE80211_AC_BE,
65 MT_TXQ_BK = IEEE80211_AC_BK,
66 MT_TXQ_PSD,
67 MT_TXQ_MCU,
68 MT_TXQ_MCU_WA,
69 MT_TXQ_BEACON,
70 MT_TXQ_CAB,
71 MT_TXQ_FWDL,
72 __MT_TXQ_MAX
73 };
74
75 enum mt76_rxq_id {
76 MT_RXQ_MAIN,
77 MT_RXQ_MCU,
78 MT_RXQ_MCU_WA,
79 __MT_RXQ_MAX
80 };
81
82 struct mt76_queue_buf {
83 dma_addr_t addr;
84 u16 len;
85 bool skip_unmap;
86 };
87
88 struct mt76_tx_info {
89 struct mt76_queue_buf buf[32];
90 struct sk_buff *skb;
91 int nbuf;
92 u32 info;
93 };
94
95 struct mt76_queue_entry {
96 union {
97 void *buf;
98 struct sk_buff *skb;
99 };
100 union {
101 struct mt76_txwi_cache *txwi;
102 struct urb *urb;
103 int buf_sz;
104 };
105 u32 dma_addr[2];
106 u16 dma_len[2];
107 u16 wcid;
108 bool skip_buf0:1;
109 bool skip_buf1:1;
110 bool done:1;
111 };
112
113 struct mt76_queue_regs {
114 u32 desc_base;
115 u32 ring_size;
116 u32 cpu_idx;
117 u32 dma_idx;
118 } __packed __aligned(4);
119
120 struct mt76_queue {
121 struct mt76_queue_regs __iomem *regs;
122
123 spinlock_t lock;
124 struct mt76_queue_entry *entry;
125 struct mt76_desc *desc;
126
127 u16 first;
128 u16 head;
129 u16 tail;
130 int ndesc;
131 int queued;
132 int buf_size;
133 bool stopped;
134
135 u8 buf_offset;
136 u8 hw_idx;
137
138 dma_addr_t desc_dma;
139 struct sk_buff *rx_head;
140 struct page_frag_cache rx_page;
141 };
142
143 struct mt76_mcu_ops {
144 u32 headroom;
145 u32 tailroom;
146
147 int (*mcu_send_msg)(struct mt76_dev *dev, int cmd, const void *data,
148 int len, bool wait_resp);
149 int (*mcu_skb_send_msg)(struct mt76_dev *dev, struct sk_buff *skb,
150 int cmd, bool wait_resp);
151 u32 (*mcu_rr)(struct mt76_dev *dev, u32 offset);
152 void (*mcu_wr)(struct mt76_dev *dev, u32 offset, u32 val);
153 int (*mcu_wr_rp)(struct mt76_dev *dev, u32 base,
154 const struct mt76_reg_pair *rp, int len);
155 int (*mcu_rd_rp)(struct mt76_dev *dev, u32 base,
156 struct mt76_reg_pair *rp, int len);
157 int (*mcu_restart)(struct mt76_dev *dev);
158 };
159
160 struct mt76_queue_ops {
161 int (*init)(struct mt76_dev *dev);
162
163 int (*alloc)(struct mt76_dev *dev, struct mt76_queue *q,
164 int idx, int n_desc, int bufsize,
165 u32 ring_base);
166
167 int (*tx_queue_skb)(struct mt76_dev *dev, enum mt76_txq_id qid,
168 struct sk_buff *skb, struct mt76_wcid *wcid,
169 struct ieee80211_sta *sta);
170
171 int (*tx_queue_skb_raw)(struct mt76_dev *dev, enum mt76_txq_id qid,
172 struct sk_buff *skb, u32 tx_info);
173
174 void *(*dequeue)(struct mt76_dev *dev, struct mt76_queue *q, bool flush,
175 int *len, u32 *info, bool *more);
176
177 void (*rx_reset)(struct mt76_dev *dev, enum mt76_rxq_id qid);
178
179 void (*tx_cleanup)(struct mt76_dev *dev, enum mt76_txq_id qid,
180 bool flush);
181
182 void (*kick)(struct mt76_dev *dev, struct mt76_queue *q);
183 };
184
185 enum mt76_wcid_flags {
186 MT_WCID_FLAG_CHECK_PS,
187 MT_WCID_FLAG_PS,
188 };
189
190 #define MT76_N_WCIDS 288
191
192 /* stored in ieee80211_tx_info::hw_queue */
193 #define MT_TX_HW_QUEUE_EXT_PHY BIT(3)
194
195 DECLARE_EWMA(signal, 10, 8);
196
197 #define MT_WCID_TX_INFO_RATE GENMASK(15, 0)
198 #define MT_WCID_TX_INFO_NSS GENMASK(17, 16)
199 #define MT_WCID_TX_INFO_TXPWR_ADJ GENMASK(25, 18)
200 #define MT_WCID_TX_INFO_SET BIT(31)
201
202 struct mt76_wcid {
203 struct mt76_rx_tid __rcu *aggr[IEEE80211_NUM_TIDS];
204
205 atomic_t non_aql_packets;
206 unsigned long flags;
207
208 struct ewma_signal rssi;
209 int inactive_count;
210
211 u16 idx;
212 u8 hw_key_idx;
213
214 u8 sta:1;
215 u8 ext_phy:1;
216 u8 amsdu:1;
217
218 u8 rx_check_pn;
219 u8 rx_key_pn[IEEE80211_NUM_TIDS][6];
220 u16 cipher;
221
222 u32 tx_info;
223 bool sw_iv;
224
225 u8 packet_id;
226 };
227
228 struct mt76_txq {
229 struct mt76_wcid *wcid;
230
231 u16 agg_ssn;
232 bool send_bar;
233 bool aggr;
234 };
235
236 struct mt76_txwi_cache {
237 struct list_head list;
238 dma_addr_t dma_addr;
239
240 struct sk_buff *skb;
241 };
242
243 struct mt76_rx_tid {
244 struct rcu_head rcu_head;
245
246 struct mt76_dev *dev;
247
248 spinlock_t lock;
249 struct delayed_work reorder_work;
250
251 u16 head;
252 u16 size;
253 u16 nframes;
254
255 u8 num;
256
257 u8 started:1, stopped:1, timer_pending:1;
258
259 struct sk_buff *reorder_buf[];
260 };
261
262 #define MT_TX_CB_DMA_DONE BIT(0)
263 #define MT_TX_CB_TXS_DONE BIT(1)
264 #define MT_TX_CB_TXS_FAILED BIT(2)
265
266 #define MT_PACKET_ID_MASK GENMASK(6, 0)
267 #define MT_PACKET_ID_NO_ACK 0
268 #define MT_PACKET_ID_NO_SKB 1
269 #define MT_PACKET_ID_FIRST 2
270 #define MT_PACKET_ID_HAS_RATE BIT(7)
271
272 #define MT_TX_STATUS_SKB_TIMEOUT HZ
273
274 struct mt76_tx_cb {
275 unsigned long jiffies;
276 u16 wcid;
277 u8 pktid;
278 u8 flags;
279 };
280
281 enum {
282 MT76_STATE_INITIALIZED,
283 MT76_STATE_RUNNING,
284 MT76_STATE_MCU_RUNNING,
285 MT76_SCANNING,
286 MT76_HW_SCANNING,
287 MT76_HW_SCHED_SCANNING,
288 MT76_RESTART,
289 MT76_RESET,
290 MT76_MCU_RESET,
291 MT76_REMOVED,
292 MT76_READING_STATS,
293 MT76_STATE_POWER_OFF,
294 MT76_STATE_SUSPEND,
295 MT76_STATE_ROC,
296 MT76_STATE_PM,
297 };
298
299 struct mt76_hw_cap {
300 bool has_2ghz;
301 bool has_5ghz;
302 };
303
304 #define MT_DRV_TXWI_NO_FREE BIT(0)
305 #define MT_DRV_TX_ALIGNED4_SKBS BIT(1)
306 #define MT_DRV_SW_RX_AIRTIME BIT(2)
307 #define MT_DRV_RX_DMA_HDR BIT(3)
308 #define MT_DRV_HW_MGMT_TXQ BIT(4)
309 #define MT_DRV_AMSDU_OFFLOAD BIT(5)
310
311 struct mt76_driver_ops {
312 u32 drv_flags;
313 u32 survey_flags;
314 u16 txwi_size;
315
316 void (*update_survey)(struct mt76_dev *dev);
317
318 int (*tx_prepare_skb)(struct mt76_dev *dev, void *txwi_ptr,
319 enum mt76_txq_id qid, struct mt76_wcid *wcid,
320 struct ieee80211_sta *sta,
321 struct mt76_tx_info *tx_info);
322
323 void (*tx_complete_skb)(struct mt76_dev *dev,
324 struct mt76_queue_entry *e);
325
326 bool (*tx_status_data)(struct mt76_dev *dev, u8 *update);
327
328 void (*rx_skb)(struct mt76_dev *dev, enum mt76_rxq_id q,
329 struct sk_buff *skb);
330
331 void (*rx_poll_complete)(struct mt76_dev *dev, enum mt76_rxq_id q);
332
333 void (*sta_ps)(struct mt76_dev *dev, struct ieee80211_sta *sta,
334 bool ps);
335
336 int (*sta_add)(struct mt76_dev *dev, struct ieee80211_vif *vif,
337 struct ieee80211_sta *sta);
338
339 void (*sta_assoc)(struct mt76_dev *dev, struct ieee80211_vif *vif,
340 struct ieee80211_sta *sta);
341
342 void (*sta_remove)(struct mt76_dev *dev, struct ieee80211_vif *vif,
343 struct ieee80211_sta *sta);
344 };
345
346 struct mt76_channel_state {
347 u64 cc_active;
348 u64 cc_busy;
349 u64 cc_rx;
350 u64 cc_bss_rx;
351 u64 cc_tx;
352
353 s8 noise;
354 };
355
356 struct mt76_sband {
357 struct ieee80211_supported_band sband;
358 struct mt76_channel_state *chan;
359 };
360
361 struct mt76_rate_power {
362 union {
363 struct {
364 s8 cck[4];
365 s8 ofdm[8];
366 s8 stbc[10];
367 s8 ht[16];
368 s8 vht[10];
369 };
370 s8 all[48];
371 };
372 };
373
374 /* addr req mask */
375 #define MT_VEND_TYPE_EEPROM BIT(31)
376 #define MT_VEND_TYPE_CFG BIT(30)
377 #define MT_VEND_TYPE_MASK (MT_VEND_TYPE_EEPROM | MT_VEND_TYPE_CFG)
378
379 #define MT_VEND_ADDR(type, n) (MT_VEND_TYPE_##type | (n))
380 enum mt_vendor_req {
381 MT_VEND_DEV_MODE = 0x1,
382 MT_VEND_WRITE = 0x2,
383 MT_VEND_POWER_ON = 0x4,
384 MT_VEND_MULTI_WRITE = 0x6,
385 MT_VEND_MULTI_READ = 0x7,
386 MT_VEND_READ_EEPROM = 0x9,
387 MT_VEND_WRITE_FCE = 0x42,
388 MT_VEND_WRITE_CFG = 0x46,
389 MT_VEND_READ_CFG = 0x47,
390 MT_VEND_READ_EXT = 0x63,
391 MT_VEND_WRITE_EXT = 0x66,
392 MT_VEND_FEATURE_SET = 0x91,
393 };
394
395 enum mt76u_in_ep {
396 MT_EP_IN_PKT_RX,
397 MT_EP_IN_CMD_RESP,
398 __MT_EP_IN_MAX,
399 };
400
401 enum mt76u_out_ep {
402 MT_EP_OUT_INBAND_CMD,
403 MT_EP_OUT_AC_BE,
404 MT_EP_OUT_AC_BK,
405 MT_EP_OUT_AC_VI,
406 MT_EP_OUT_AC_VO,
407 MT_EP_OUT_HCCA,
408 __MT_EP_OUT_MAX,
409 };
410
411 struct mt76_mcu {
412 struct mutex mutex;
413 u32 msg_seq;
414
415 struct sk_buff_head res_q;
416 wait_queue_head_t wait;
417 };
418
419 #define MT_TX_SG_MAX_SIZE 8
420 #define MT_RX_SG_MAX_SIZE 4
421 #define MT_NUM_TX_ENTRIES 256
422 #define MT_NUM_RX_ENTRIES 128
423 #define MCU_RESP_URB_SIZE 1024
424 struct mt76_usb {
425 struct mutex usb_ctrl_mtx;
426 u8 *data;
427 u16 data_len;
428
429 struct tasklet_struct rx_tasklet;
430 struct work_struct stat_work;
431
432 u8 out_ep[__MT_EP_OUT_MAX];
433 u8 in_ep[__MT_EP_IN_MAX];
434 bool sg_en;
435
436 struct mt76u_mcu {
437 u8 *data;
438 /* multiple reads */
439 struct mt76_reg_pair *rp;
440 int rp_len;
441 u32 base;
442 bool burst;
443 } mcu;
444 };
445
446 #define MT76S_XMIT_BUF_SZ (16 * PAGE_SIZE)
447 struct mt76_sdio {
448 struct workqueue_struct *txrx_wq;
449 struct {
450 struct work_struct xmit_work;
451 struct work_struct status_work;
452 } tx;
453 struct {
454 struct work_struct recv_work;
455 struct work_struct net_work;
456 } rx;
457
458 struct work_struct stat_work;
459
460 u8 *xmit_buf[MT_TXQ_MCU_WA];
461
462 struct sdio_func *func;
463 void *intr_data;
464
465 struct {
466 struct mutex lock;
467 int pse_data_quota;
468 int ple_data_quota;
469 int pse_mcu_quota;
470 int deficit;
471 } sched;
472 };
473
474 struct mt76_mmio {
475 void __iomem *regs;
476 spinlock_t irq_lock;
477 u32 irqmask;
478 };
479
480 struct mt76_rx_status {
481 union {
482 struct mt76_wcid *wcid;
483 u16 wcid_idx;
484 };
485
486 unsigned long reorder_time;
487
488 u32 ampdu_ref;
489
490 u8 iv[6];
491
492 u8 ext_phy:1;
493 u8 aggr:1;
494 u8 tid;
495 u16 seqno;
496
497 u16 freq;
498 u32 flag;
499 u8 enc_flags;
500 u8 encoding:2, bw:3, he_ru:3;
501 u8 he_gi:2, he_dcm:1;
502 u8 rate_idx;
503 u8 nss;
504 u8 band;
505 s8 signal;
506 u8 chains;
507 s8 chain_signal[IEEE80211_MAX_CHAINS];
508 };
509
510 struct mt76_testmode_ops {
511 int (*set_state)(struct mt76_dev *dev, enum mt76_testmode_state state);
512 int (*set_params)(struct mt76_dev *dev, struct nlattr **tb,
513 enum mt76_testmode_state new_state);
514 int (*dump_stats)(struct mt76_dev *dev, struct sk_buff *msg);
515 };
516
517 struct mt76_testmode_data {
518 enum mt76_testmode_state state;
519
520 u32 param_set[DIV_ROUND_UP(NUM_MT76_TM_ATTRS, 32)];
521 struct sk_buff *tx_skb;
522
523 u32 tx_count;
524 u16 tx_msdu_len;
525
526 u8 tx_rate_mode;
527 u8 tx_rate_idx;
528 u8 tx_rate_nss;
529 u8 tx_rate_sgi;
530 u8 tx_rate_ldpc;
531
532 u8 tx_antenna_mask;
533
534 u32 freq_offset;
535
536 u8 tx_power[4];
537 u8 tx_power_control;
538
539 const char *mtd_name;
540 u32 mtd_offset;
541
542 u32 tx_pending;
543 u32 tx_queued;
544 u32 tx_done;
545 struct {
546 u64 packets[__MT_RXQ_MAX];
547 u64 fcs_error[__MT_RXQ_MAX];
548 } rx_stats;
549 };
550
551 struct mt76_phy {
552 struct ieee80211_hw *hw;
553 struct mt76_dev *dev;
554 void *priv;
555
556 unsigned long state;
557
558 struct cfg80211_chan_def chandef;
559 struct ieee80211_channel *main_chan;
560
561 struct mt76_channel_state *chan_state;
562 ktime_t survey_time;
563
564 struct mt76_sband sband_2g;
565 struct mt76_sband sband_5g;
566
567 u32 vif_mask;
568
569 int txpower_cur;
570 u8 antenna_mask;
571 };
572
573 struct mt76_dev {
574 struct mt76_phy phy; /* must be first */
575
576 struct mt76_phy *phy2;
577
578 struct ieee80211_hw *hw;
579
580 spinlock_t lock;
581 spinlock_t cc_lock;
582
583 u32 cur_cc_bss_rx;
584
585 struct mt76_rx_status rx_ampdu_status;
586 u32 rx_ampdu_len;
587 u32 rx_ampdu_ref;
588
589 struct mutex mutex;
590
591 const struct mt76_bus_ops *bus;
592 const struct mt76_driver_ops *drv;
593 const struct mt76_mcu_ops *mcu_ops;
594 struct device *dev;
595
596 struct mt76_mcu mcu;
597
598 struct net_device napi_dev;
599 spinlock_t rx_lock;
600 struct napi_struct napi[__MT_RXQ_MAX];
601 struct sk_buff_head rx_skb[__MT_RXQ_MAX];
602
603 struct list_head txwi_cache;
604 struct mt76_queue *q_tx[2 * __MT_TXQ_MAX];
605 struct mt76_queue q_rx[__MT_RXQ_MAX];
606 const struct mt76_queue_ops *queue_ops;
607 int tx_dma_idx[4];
608
609 struct mt76_worker tx_worker;
610 struct napi_struct tx_napi;
611 struct delayed_work mac_work;
612
613 wait_queue_head_t tx_wait;
614 struct sk_buff_head status_list;
615
616 u32 wcid_mask[DIV_ROUND_UP(MT76_N_WCIDS, 32)];
617 u32 wcid_phy_mask[DIV_ROUND_UP(MT76_N_WCIDS, 32)];
618
619 struct mt76_wcid global_wcid;
620 struct mt76_wcid __rcu *wcid[MT76_N_WCIDS];
621
622 u8 macaddr[ETH_ALEN];
623 u32 rev;
624
625 u32 aggr_stats[32];
626
627 struct tasklet_struct pre_tbtt_tasklet;
628 int beacon_int;
629 u8 beacon_mask;
630
631 struct debugfs_blob_wrapper eeprom;
632 struct debugfs_blob_wrapper otp;
633 struct mt76_hw_cap cap;
634
635 struct mt76_rate_power rate_power;
636
637 enum nl80211_dfs_regions region;
638
639 u32 debugfs_reg;
640
641 struct led_classdev led_cdev;
642 char led_name[32];
643 bool led_al;
644 u8 led_pin;
645
646 u8 csa_complete;
647
648 u32 rxfilter;
649
650 #ifdef CONFIG_NL80211_TESTMODE
651 const struct mt76_testmode_ops *test_ops;
652 struct mt76_testmode_data test;
653 #endif
654
655 struct workqueue_struct *wq;
656
657 union {
658 struct mt76_mmio mmio;
659 struct mt76_usb usb;
660 struct mt76_sdio sdio;
661 };
662 };
663
664 enum mt76_phy_type {
665 MT_PHY_TYPE_CCK,
666 MT_PHY_TYPE_OFDM,
667 MT_PHY_TYPE_HT,
668 MT_PHY_TYPE_HT_GF,
669 MT_PHY_TYPE_VHT,
670 MT_PHY_TYPE_HE_SU = 8,
671 MT_PHY_TYPE_HE_EXT_SU,
672 MT_PHY_TYPE_HE_TB,
673 MT_PHY_TYPE_HE_MU,
674 };
675
676 #define __mt76_rr(dev, ...) (dev)->bus->rr((dev), __VA_ARGS__)
677 #define __mt76_wr(dev, ...) (dev)->bus->wr((dev), __VA_ARGS__)
678 #define __mt76_rmw(dev, ...) (dev)->bus->rmw((dev), __VA_ARGS__)
679 #define __mt76_wr_copy(dev, ...) (dev)->bus->write_copy((dev), __VA_ARGS__)
680 #define __mt76_rr_copy(dev, ...) (dev)->bus->read_copy((dev), __VA_ARGS__)
681
682 #define __mt76_set(dev, offset, val) __mt76_rmw(dev, offset, 0, val)
683 #define __mt76_clear(dev, offset, val) __mt76_rmw(dev, offset, val, 0)
684
685 #define mt76_rr(dev, ...) (dev)->mt76.bus->rr(&((dev)->mt76), __VA_ARGS__)
686 #define mt76_wr(dev, ...) (dev)->mt76.bus->wr(&((dev)->mt76), __VA_ARGS__)
687 #define mt76_rmw(dev, ...) (dev)->mt76.bus->rmw(&((dev)->mt76), __VA_ARGS__)
688 #define mt76_wr_copy(dev, ...) (dev)->mt76.bus->write_copy(&((dev)->mt76), __VA_ARGS__)
689 #define mt76_rr_copy(dev, ...) (dev)->mt76.bus->read_copy(&((dev)->mt76), __VA_ARGS__)
690 #define mt76_wr_rp(dev, ...) (dev)->mt76.bus->wr_rp(&((dev)->mt76), __VA_ARGS__)
691 #define mt76_rd_rp(dev, ...) (dev)->mt76.bus->rd_rp(&((dev)->mt76), __VA_ARGS__)
692
693 #define mt76_mcu_send_msg(dev, ...) (dev)->mt76.mcu_ops->mcu_send_msg(&((dev)->mt76), __VA_ARGS__)
694
695 #define __mt76_mcu_send_msg(dev, ...) (dev)->mcu_ops->mcu_send_msg((dev), __VA_ARGS__)
696 #define __mt76_mcu_skb_send_msg(dev, ...) (dev)->mcu_ops->mcu_skb_send_msg((dev), __VA_ARGS__)
697 #define mt76_mcu_restart(dev, ...) (dev)->mt76.mcu_ops->mcu_restart(&((dev)->mt76))
698 #define __mt76_mcu_restart(dev, ...) (dev)->mcu_ops->mcu_restart((dev))
699
700 #define mt76_set(dev, offset, val) mt76_rmw(dev, offset, 0, val)
701 #define mt76_clear(dev, offset, val) mt76_rmw(dev, offset, val, 0)
702
703 #define mt76_get_field(_dev, _reg, _field) \
704 FIELD_GET(_field, mt76_rr(dev, _reg))
705
706 #define mt76_rmw_field(_dev, _reg, _field, _val) \
707 mt76_rmw(_dev, _reg, _field, FIELD_PREP(_field, _val))
708
709 #define __mt76_rmw_field(_dev, _reg, _field, _val) \
710 __mt76_rmw(_dev, _reg, _field, FIELD_PREP(_field, _val))
711
712 #define mt76_hw(dev) (dev)->mphy.hw
713
714 static inline struct ieee80211_hw *
mt76_wcid_hw(struct mt76_dev * dev,u16 wcid)715 mt76_wcid_hw(struct mt76_dev *dev, u16 wcid)
716 {
717 if (wcid <= MT76_N_WCIDS &&
718 mt76_wcid_mask_test(dev->wcid_phy_mask, wcid))
719 return dev->phy2->hw;
720
721 return dev->phy.hw;
722 }
723
724 bool __mt76_poll(struct mt76_dev *dev, u32 offset, u32 mask, u32 val,
725 int timeout);
726
727 #define mt76_poll(dev, ...) __mt76_poll(&((dev)->mt76), __VA_ARGS__)
728
729 bool __mt76_poll_msec(struct mt76_dev *dev, u32 offset, u32 mask, u32 val,
730 int timeout);
731
732 #define mt76_poll_msec(dev, ...) __mt76_poll_msec(&((dev)->mt76), __VA_ARGS__)
733
734 void mt76_mmio_init(struct mt76_dev *dev, void __iomem *regs);
735 void mt76_pci_disable_aspm(struct pci_dev *pdev);
736
mt76_chip(struct mt76_dev * dev)737 static inline u16 mt76_chip(struct mt76_dev *dev)
738 {
739 return dev->rev >> 16;
740 }
741
mt76_rev(struct mt76_dev * dev)742 static inline u16 mt76_rev(struct mt76_dev *dev)
743 {
744 return dev->rev & 0xffff;
745 }
746
747 #define mt76xx_chip(dev) mt76_chip(&((dev)->mt76))
748 #define mt76xx_rev(dev) mt76_rev(&((dev)->mt76))
749
750 #define mt76_init_queues(dev) (dev)->mt76.queue_ops->init(&((dev)->mt76))
751 #define mt76_queue_alloc(dev, ...) (dev)->mt76.queue_ops->alloc(&((dev)->mt76), __VA_ARGS__)
752 #define mt76_tx_queue_skb_raw(dev, ...) (dev)->mt76.queue_ops->tx_queue_skb_raw(&((dev)->mt76), __VA_ARGS__)
753 #define mt76_tx_queue_skb(dev, ...) (dev)->mt76.queue_ops->tx_queue_skb(&((dev)->mt76), __VA_ARGS__)
754 #define mt76_queue_rx_reset(dev, ...) (dev)->mt76.queue_ops->rx_reset(&((dev)->mt76), __VA_ARGS__)
755 #define mt76_queue_tx_cleanup(dev, ...) (dev)->mt76.queue_ops->tx_cleanup(&((dev)->mt76), __VA_ARGS__)
756 #define mt76_queue_kick(dev, ...) (dev)->mt76.queue_ops->kick(&((dev)->mt76), __VA_ARGS__)
757
758 #define mt76_for_each_q_rx(dev, i) \
759 for (i = 0; i < ARRAY_SIZE((dev)->q_rx) && \
760 (dev)->q_rx[i].ndesc; i++)
761
762 struct mt76_dev *mt76_alloc_device(struct device *pdev, unsigned int size,
763 const struct ieee80211_ops *ops,
764 const struct mt76_driver_ops *drv_ops);
765 int mt76_register_device(struct mt76_dev *dev, bool vht,
766 struct ieee80211_rate *rates, int n_rates);
767 void mt76_unregister_device(struct mt76_dev *dev);
768 void mt76_free_device(struct mt76_dev *dev);
769 void mt76_unregister_phy(struct mt76_phy *phy);
770
771 struct mt76_phy *mt76_alloc_phy(struct mt76_dev *dev, unsigned int size,
772 const struct ieee80211_ops *ops);
773 int mt76_register_phy(struct mt76_phy *phy);
774
775 struct dentry *mt76_register_debugfs(struct mt76_dev *dev);
776 int mt76_queues_read(struct seq_file *s, void *data);
777 void mt76_seq_puts_array(struct seq_file *file, const char *str,
778 s8 *val, int len);
779
780 int mt76_eeprom_init(struct mt76_dev *dev, int len);
781 void mt76_eeprom_override(struct mt76_dev *dev);
782
783 static inline struct mt76_phy *
mt76_dev_phy(struct mt76_dev * dev,bool phy_ext)784 mt76_dev_phy(struct mt76_dev *dev, bool phy_ext)
785 {
786 if (phy_ext && dev->phy2)
787 return dev->phy2;
788 return &dev->phy;
789 }
790
791 static inline struct ieee80211_hw *
mt76_phy_hw(struct mt76_dev * dev,bool phy_ext)792 mt76_phy_hw(struct mt76_dev *dev, bool phy_ext)
793 {
794 return mt76_dev_phy(dev, phy_ext)->hw;
795 }
796
797 static inline u8 *
mt76_get_txwi_ptr(struct mt76_dev * dev,struct mt76_txwi_cache * t)798 mt76_get_txwi_ptr(struct mt76_dev *dev, struct mt76_txwi_cache *t)
799 {
800 return (u8 *)t - dev->drv->txwi_size;
801 }
802
803 /* increment with wrap-around */
mt76_incr(int val,int size)804 static inline int mt76_incr(int val, int size)
805 {
806 return (val + 1) & (size - 1);
807 }
808
809 /* decrement with wrap-around */
mt76_decr(int val,int size)810 static inline int mt76_decr(int val, int size)
811 {
812 return (val - 1) & (size - 1);
813 }
814
815 u8 mt76_ac_to_hwq(u8 ac);
816
817 static inline struct ieee80211_txq *
mtxq_to_txq(struct mt76_txq * mtxq)818 mtxq_to_txq(struct mt76_txq *mtxq)
819 {
820 void *ptr = mtxq;
821
822 return container_of(ptr, struct ieee80211_txq, drv_priv);
823 }
824
825 static inline struct ieee80211_sta *
wcid_to_sta(struct mt76_wcid * wcid)826 wcid_to_sta(struct mt76_wcid *wcid)
827 {
828 void *ptr = wcid;
829
830 if (!wcid || !wcid->sta)
831 return NULL;
832
833 return container_of(ptr, struct ieee80211_sta, drv_priv);
834 }
835
mt76_tx_skb_cb(struct sk_buff * skb)836 static inline struct mt76_tx_cb *mt76_tx_skb_cb(struct sk_buff *skb)
837 {
838 BUILD_BUG_ON(sizeof(struct mt76_tx_cb) >
839 sizeof(IEEE80211_SKB_CB(skb)->status.status_driver_data));
840 return ((void *)IEEE80211_SKB_CB(skb)->status.status_driver_data);
841 }
842
mt76_skb_get_hdr(struct sk_buff * skb)843 static inline void *mt76_skb_get_hdr(struct sk_buff *skb)
844 {
845 struct mt76_rx_status mstat;
846 u8 *data = skb->data;
847
848 /* Alignment concerns */
849 BUILD_BUG_ON(sizeof(struct ieee80211_radiotap_he) % 4);
850 BUILD_BUG_ON(sizeof(struct ieee80211_radiotap_he_mu) % 4);
851
852 mstat = *((struct mt76_rx_status *)skb->cb);
853
854 if (mstat.flag & RX_FLAG_RADIOTAP_HE)
855 data += sizeof(struct ieee80211_radiotap_he);
856 if (mstat.flag & RX_FLAG_RADIOTAP_HE_MU)
857 data += sizeof(struct ieee80211_radiotap_he_mu);
858
859 return data;
860 }
861
mt76_insert_hdr_pad(struct sk_buff * skb)862 static inline void mt76_insert_hdr_pad(struct sk_buff *skb)
863 {
864 int len = ieee80211_get_hdrlen_from_skb(skb);
865
866 if (len % 4 == 0)
867 return;
868
869 skb_push(skb, 2);
870 memmove(skb->data, skb->data + 2, len);
871
872 skb->data[len] = 0;
873 skb->data[len + 1] = 0;
874 }
875
mt76_is_skb_pktid(u8 pktid)876 static inline bool mt76_is_skb_pktid(u8 pktid)
877 {
878 if (pktid & MT_PACKET_ID_HAS_RATE)
879 return false;
880
881 return pktid >= MT_PACKET_ID_FIRST;
882 }
883
mt76_tx_power_nss_delta(u8 nss)884 static inline u8 mt76_tx_power_nss_delta(u8 nss)
885 {
886 static const u8 nss_delta[4] = { 0, 6, 9, 12 };
887
888 return nss_delta[nss - 1];
889 }
890
mt76_testmode_enabled(struct mt76_dev * dev)891 static inline bool mt76_testmode_enabled(struct mt76_dev *dev)
892 {
893 #ifdef CONFIG_NL80211_TESTMODE
894 return dev->test.state != MT76_TM_STATE_OFF;
895 #else
896 return false;
897 #endif
898 }
899
900 void mt76_rx(struct mt76_dev *dev, enum mt76_rxq_id q, struct sk_buff *skb);
901 void mt76_tx(struct mt76_phy *dev, struct ieee80211_sta *sta,
902 struct mt76_wcid *wcid, struct sk_buff *skb);
903 void mt76_wake_tx_queue(struct ieee80211_hw *hw, struct ieee80211_txq *txq);
904 void mt76_stop_tx_queues(struct mt76_dev *dev, struct ieee80211_sta *sta,
905 bool send_bar);
906 void mt76_tx_check_agg_ssn(struct ieee80211_sta *sta, struct sk_buff *skb);
907 void mt76_txq_schedule(struct mt76_phy *phy, enum mt76_txq_id qid);
908 void mt76_txq_schedule_all(struct mt76_phy *phy);
909 void mt76_tx_worker(struct mt76_worker *w);
910 void mt76_release_buffered_frames(struct ieee80211_hw *hw,
911 struct ieee80211_sta *sta,
912 u16 tids, int nframes,
913 enum ieee80211_frame_release_type reason,
914 bool more_data);
915 bool mt76_has_tx_pending(struct mt76_phy *phy);
916 void mt76_set_channel(struct mt76_phy *phy);
917 void mt76_update_survey(struct mt76_dev *dev);
918 void mt76_update_survey_active_time(struct mt76_phy *phy, ktime_t time);
919 int mt76_get_survey(struct ieee80211_hw *hw, int idx,
920 struct survey_info *survey);
921 void mt76_set_stream_caps(struct mt76_phy *phy, bool vht);
922
923 int mt76_rx_aggr_start(struct mt76_dev *dev, struct mt76_wcid *wcid, u8 tid,
924 u16 ssn, u16 size);
925 void mt76_rx_aggr_stop(struct mt76_dev *dev, struct mt76_wcid *wcid, u8 tid);
926
927 void mt76_wcid_key_setup(struct mt76_dev *dev, struct mt76_wcid *wcid,
928 struct ieee80211_key_conf *key);
929
930 void mt76_tx_status_lock(struct mt76_dev *dev, struct sk_buff_head *list)
931 __acquires(&dev->status_list.lock);
932 void mt76_tx_status_unlock(struct mt76_dev *dev, struct sk_buff_head *list)
933 __releases(&dev->status_list.lock);
934
935 int mt76_tx_status_skb_add(struct mt76_dev *dev, struct mt76_wcid *wcid,
936 struct sk_buff *skb);
937 struct sk_buff *mt76_tx_status_skb_get(struct mt76_dev *dev,
938 struct mt76_wcid *wcid, int pktid,
939 struct sk_buff_head *list);
940 void mt76_tx_status_skb_done(struct mt76_dev *dev, struct sk_buff *skb,
941 struct sk_buff_head *list);
942 void mt76_tx_complete_skb(struct mt76_dev *dev, u16 wcid, struct sk_buff *skb);
943 void mt76_tx_status_check(struct mt76_dev *dev, struct mt76_wcid *wcid,
944 bool flush);
945 int mt76_sta_state(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
946 struct ieee80211_sta *sta,
947 enum ieee80211_sta_state old_state,
948 enum ieee80211_sta_state new_state);
949 void __mt76_sta_remove(struct mt76_dev *dev, struct ieee80211_vif *vif,
950 struct ieee80211_sta *sta);
951 void mt76_sta_pre_rcu_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
952 struct ieee80211_sta *sta);
953
954 int mt76_get_min_avg_rssi(struct mt76_dev *dev, bool ext_phy);
955
956 int mt76_get_txpower(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
957 int *dbm);
958
959 void mt76_csa_check(struct mt76_dev *dev);
960 void mt76_csa_finish(struct mt76_dev *dev);
961
962 int mt76_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant);
963 int mt76_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set);
964 void mt76_insert_ccmp_hdr(struct sk_buff *skb, u8 key_id);
965 int mt76_get_rate(struct mt76_dev *dev,
966 struct ieee80211_supported_band *sband,
967 int idx, bool cck);
968 void mt76_sw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
969 const u8 *mac);
970 void mt76_sw_scan_complete(struct ieee80211_hw *hw,
971 struct ieee80211_vif *vif);
972 int mt76_testmode_cmd(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
973 void *data, int len);
974 int mt76_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb,
975 struct netlink_callback *cb, void *data, int len);
976 int mt76_testmode_set_state(struct mt76_dev *dev, enum mt76_testmode_state state);
977
mt76_testmode_reset(struct mt76_dev * dev,bool disable)978 static inline void mt76_testmode_reset(struct mt76_dev *dev, bool disable)
979 {
980 #ifdef CONFIG_NL80211_TESTMODE
981 enum mt76_testmode_state state = MT76_TM_STATE_IDLE;
982
983 if (disable || dev->test.state == MT76_TM_STATE_OFF)
984 state = MT76_TM_STATE_OFF;
985
986 mt76_testmode_set_state(dev, state);
987 #endif
988 }
989
990
991 /* internal */
992 static inline struct ieee80211_hw *
mt76_tx_status_get_hw(struct mt76_dev * dev,struct sk_buff * skb)993 mt76_tx_status_get_hw(struct mt76_dev *dev, struct sk_buff *skb)
994 {
995 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
996 struct ieee80211_hw *hw = dev->phy.hw;
997
998 if ((info->hw_queue & MT_TX_HW_QUEUE_EXT_PHY) && dev->phy2)
999 hw = dev->phy2->hw;
1000
1001 info->hw_queue &= ~MT_TX_HW_QUEUE_EXT_PHY;
1002
1003 return hw;
1004 }
1005
1006 void mt76_put_txwi(struct mt76_dev *dev, struct mt76_txwi_cache *t);
1007 void mt76_rx_complete(struct mt76_dev *dev, struct sk_buff_head *frames,
1008 struct napi_struct *napi);
1009 void mt76_rx_poll_complete(struct mt76_dev *dev, enum mt76_rxq_id q,
1010 struct napi_struct *napi);
1011 void mt76_rx_aggr_reorder(struct sk_buff *skb, struct sk_buff_head *frames);
1012 void mt76_testmode_tx_pending(struct mt76_dev *dev);
1013 void mt76_queue_tx_complete(struct mt76_dev *dev, struct mt76_queue *q,
1014 struct mt76_queue_entry *e);
1015
1016 /* usb */
mt76u_urb_error(struct urb * urb)1017 static inline bool mt76u_urb_error(struct urb *urb)
1018 {
1019 return urb->status &&
1020 urb->status != -ECONNRESET &&
1021 urb->status != -ESHUTDOWN &&
1022 urb->status != -ENOENT;
1023 }
1024
1025 /* Map hardware queues to usb endpoints */
q2ep(u8 qid)1026 static inline u8 q2ep(u8 qid)
1027 {
1028 /* TODO: take management packets to queue 5 */
1029 return qid + 1;
1030 }
1031
1032 static inline int
mt76u_bulk_msg(struct mt76_dev * dev,void * data,int len,int * actual_len,int timeout,int ep)1033 mt76u_bulk_msg(struct mt76_dev *dev, void *data, int len, int *actual_len,
1034 int timeout, int ep)
1035 {
1036 struct usb_interface *uintf = to_usb_interface(dev->dev);
1037 struct usb_device *udev = interface_to_usbdev(uintf);
1038 struct mt76_usb *usb = &dev->usb;
1039 unsigned int pipe;
1040
1041 if (actual_len)
1042 pipe = usb_rcvbulkpipe(udev, usb->in_ep[ep]);
1043 else
1044 pipe = usb_sndbulkpipe(udev, usb->out_ep[ep]);
1045
1046 return usb_bulk_msg(udev, pipe, data, len, actual_len, timeout);
1047 }
1048
1049 int mt76_skb_adjust_pad(struct sk_buff *skb, int pad);
1050 int mt76u_vendor_request(struct mt76_dev *dev, u8 req,
1051 u8 req_type, u16 val, u16 offset,
1052 void *buf, size_t len);
1053 void mt76u_single_wr(struct mt76_dev *dev, const u8 req,
1054 const u16 offset, const u32 val);
1055 int mt76u_init(struct mt76_dev *dev, struct usb_interface *intf,
1056 bool ext);
1057 int mt76u_alloc_mcu_queue(struct mt76_dev *dev);
1058 int mt76u_alloc_queues(struct mt76_dev *dev);
1059 void mt76u_stop_tx(struct mt76_dev *dev);
1060 void mt76u_stop_rx(struct mt76_dev *dev);
1061 int mt76u_resume_rx(struct mt76_dev *dev);
1062 void mt76u_queues_deinit(struct mt76_dev *dev);
1063
1064 int mt76s_init(struct mt76_dev *dev, struct sdio_func *func,
1065 const struct mt76_bus_ops *bus_ops);
1066 int mt76s_alloc_queues(struct mt76_dev *dev);
1067 void mt76s_stop_txrx(struct mt76_dev *dev);
1068 void mt76s_deinit(struct mt76_dev *dev);
1069
1070 struct sk_buff *
1071 mt76_mcu_msg_alloc(struct mt76_dev *dev, const void *data,
1072 int data_len);
1073 void mt76_mcu_rx_event(struct mt76_dev *dev, struct sk_buff *skb);
1074 struct sk_buff *mt76_mcu_get_response(struct mt76_dev *dev,
1075 unsigned long expires);
1076
1077 void mt76_set_irq_mask(struct mt76_dev *dev, u32 addr, u32 clear, u32 set);
1078
1079 #endif
1080
