drivers/net/wireless/mediatek/mt76/mt76.h

   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
  19 #define MT_TX_RING_SIZE     256
  20 #define MT_MCU_RING_SIZE    32
  21 #define MT_RX_BUF_SIZE      2048
  22 #define MT_SKB_HEAD_LEN     128
  23
  24 struct mt76_dev;
  25 struct mt76_phy;
  26 struct mt76_wcid;
  27
  28 struct mt76_reg_pair {
  29         u32 reg;
  30         u32 value;
  31 };
  32
  33 enum mt76_bus_type {
  34         MT76_BUS_MMIO,
  35         MT76_BUS_USB,
  36 };
  37
  38 struct mt76_bus_ops {
  39         u32 (*rr)(struct mt76_dev *dev, u32 offset);
  40         void (*wr)(struct mt76_dev *dev, u32 offset, u32 val);
  41         u32 (*rmw)(struct mt76_dev *dev, u32 offset, u32 mask, u32 val);
  42         void (*write_copy)(struct mt76_dev *dev, u32 offset, const void *data,
  43                            int len);
  44         void (*read_copy)(struct mt76_dev *dev, u32 offset, void *data,
  45                           int len);
  46         int (*wr_rp)(struct mt76_dev *dev, u32 base,
  47                      const struct mt76_reg_pair *rp, int len);
  48         int (*rd_rp)(struct mt76_dev *dev, u32 base,
  49                      struct mt76_reg_pair *rp, int len);
  50         enum mt76_bus_type type;
  51 };
  52
  53 #define mt76_is_usb(dev) ((dev)->bus->type == MT76_BUS_USB)
  54 #define mt76_is_mmio(dev) ((dev)->bus->type == MT76_BUS_MMIO)
  55
  56 enum mt76_txq_id {
  57         MT_TXQ_VO = IEEE80211_AC_VO,
  58         MT_TXQ_VI = IEEE80211_AC_VI,
  59         MT_TXQ_BE = IEEE80211_AC_BE,
  60         MT_TXQ_BK = IEEE80211_AC_BK,
  61         MT_TXQ_PSD,
  62         MT_TXQ_MCU,
  63         MT_TXQ_BEACON,
  64         MT_TXQ_CAB,
  65         MT_TXQ_FWDL,
  66         __MT_TXQ_MAX
  67 };
  68
  69 enum mt76_rxq_id {
  70         MT_RXQ_MAIN,
  71         MT_RXQ_MCU,
  72         __MT_RXQ_MAX
  73 };
  74
  75 struct mt76_queue_buf {
  76         dma_addr_t addr;
  77         int len;
  78 };
  79
  80 struct mt76_tx_info {
  81         struct mt76_queue_buf buf[32];
  82         struct sk_buff *skb;
  83         int nbuf;
  84         u32 info;
  85 };
  86
  87 struct mt76_queue_entry {
  88         union {
  89                 void *buf;
  90                 struct sk_buff *skb;
  91         };
  92         union {
  93                 struct mt76_txwi_cache *txwi;
  94                 struct urb *urb;
  95         };
  96         enum mt76_txq_id qid;
  97         bool skip_buf0:1;
  98         bool schedule:1;
  99         bool done:1;
 100 };
 101
 102 struct mt76_queue_regs {
 103         u32 desc_base;
 104         u32 ring_size;
 105         u32 cpu_idx;
 106         u32 dma_idx;
 107 } __packed __aligned(4);
 108
 109 struct mt76_queue {
 110         struct mt76_queue_regs __iomem *regs;
 111
 112         spinlock_t lock;
 113         struct mt76_queue_entry *entry;
 114         struct mt76_desc *desc;
 115
 116         u16 first;
 117         u16 head;
 118         u16 tail;
 119         int ndesc;
 120         int queued;
 121         int buf_size;
 122         bool stopped;
 123
 124         u8 buf_offset;
 125         u8 hw_idx;
 126
 127         dma_addr_t desc_dma;
 128         struct sk_buff *rx_head;
 129         struct page_frag_cache rx_page;
 130 };
 131
 132 struct mt76_sw_queue {
 133         struct mt76_queue *q;
 134
 135         struct list_head swq;
 136         int swq_queued;
 137 };
 138
 139 struct mt76_mcu_ops {
 140         int (*mcu_send_msg)(struct mt76_dev *dev, int cmd, const void *data,
 141                             int len, bool wait_resp);
 142         int (*mcu_skb_send_msg)(struct mt76_dev *dev, struct sk_buff *skb,
 143                                 int cmd, bool wait_resp);
 144         int (*mcu_wr_rp)(struct mt76_dev *dev, u32 base,
 145                          const struct mt76_reg_pair *rp, int len);
 146         int (*mcu_rd_rp)(struct mt76_dev *dev, u32 base,
 147                          struct mt76_reg_pair *rp, int len);
 148         int (*mcu_restart)(struct mt76_dev *dev);
 149 };
 150
 151 struct mt76_queue_ops {
 152         int (*init)(struct mt76_dev *dev);
 153
 154         int (*alloc)(struct mt76_dev *dev, struct mt76_queue *q,
 155                      int idx, int n_desc, int bufsize,
 156                      u32 ring_base);
 157
 158         int (*tx_queue_skb)(struct mt76_dev *dev, enum mt76_txq_id qid,
 159                             struct sk_buff *skb, struct mt76_wcid *wcid,
 160                             struct ieee80211_sta *sta);
 161
 162         int (*tx_queue_skb_raw)(struct mt76_dev *dev, enum mt76_txq_id qid,
 163                                 struct sk_buff *skb, u32 tx_info);
 164
 165         void *(*dequeue)(struct mt76_dev *dev, struct mt76_queue *q, bool flush,
 166                          int *len, u32 *info, bool *more);
 167
 168         void (*rx_reset)(struct mt76_dev *dev, enum mt76_rxq_id qid);
 169
 170         void (*tx_cleanup)(struct mt76_dev *dev, enum mt76_txq_id qid,
 171                            bool flush);
 172
 173         void (*kick)(struct mt76_dev *dev, struct mt76_queue *q);
 174 };
 175
 176 enum mt76_wcid_flags {
 177         MT_WCID_FLAG_CHECK_PS,
 178         MT_WCID_FLAG_PS,
 179 };
 180
 181 #define MT76_N_WCIDS 128
 182
 183 /* stored in ieee80211_tx_info::hw_queue */
 184 #define MT_TX_HW_QUEUE_EXT_PHY          BIT(3)
 185
 186 DECLARE_EWMA(signal, 10, 8);
 187
 188 #define MT_WCID_TX_INFO_RATE            GENMASK(15, 0)
 189 #define MT_WCID_TX_INFO_NSS             GENMASK(17, 16)
 190 #define MT_WCID_TX_INFO_TXPWR_ADJ       GENMASK(25, 18)
 191 #define MT_WCID_TX_INFO_SET             BIT(31)
 192
 193 struct mt76_wcid {
 194         struct mt76_rx_tid __rcu *aggr[IEEE80211_NUM_TIDS];
 195
 196         unsigned long flags;
 197
 198         struct ewma_signal rssi;
 199         int inactive_count;
 200
 201         u8 idx;
 202         u8 hw_key_idx;
 203
 204         u8 sta:1;
 205         u8 ext_phy:1;
 206
 207         u8 rx_check_pn;
 208         u8 rx_key_pn[IEEE80211_NUM_TIDS][6];
 209         u16 cipher;
 210
 211         u32 tx_info;
 212         bool sw_iv;
 213
 214         u8 packet_id;
 215 };
 216
 217 struct mt76_txq {
 218         struct mt76_sw_queue *swq;
 219         struct mt76_wcid *wcid;
 220
 221         struct sk_buff_head retry_q;
 222
 223         u16 agg_ssn;
 224         bool send_bar;
 225         bool aggr;
 226 };
 227
 228 struct mt76_txwi_cache {
 229         struct list_head list;
 230         dma_addr_t dma_addr;
 231
 232         struct sk_buff *skb;
 233 };
 234
 235 struct mt76_rx_tid {
 236         struct rcu_head rcu_head;
 237
 238         struct mt76_dev *dev;
 239
 240         spinlock_t lock;
 241         struct delayed_work reorder_work;
 242
 243         u16 head;
 244         u8 size;
 245         u8 nframes;
 246
 247         u8 num;
 248
 249         u8 started:1, stopped:1, timer_pending:1;
 250
 251         struct sk_buff *reorder_buf[];
 252 };
 253
 254 #define MT_TX_CB_DMA_DONE               BIT(0)
 255 #define MT_TX_CB_TXS_DONE               BIT(1)
 256 #define MT_TX_CB_TXS_FAILED             BIT(2)
 257
 258 #define MT_PACKET_ID_MASK               GENMASK(6, 0)
 259 #define MT_PACKET_ID_NO_ACK             0
 260 #define MT_PACKET_ID_NO_SKB             1
 261 #define MT_PACKET_ID_FIRST              2
 262 #define MT_PACKET_ID_HAS_RATE           BIT(7)
 263
 264 #define MT_TX_STATUS_SKB_TIMEOUT        HZ
 265
 266 struct mt76_tx_cb {
 267         unsigned long jiffies;
 268         u8 wcid;
 269         u8 pktid;
 270         u8 flags;
 271 };
 272
 273 enum {
 274         MT76_STATE_INITIALIZED,
 275         MT76_STATE_RUNNING,
 276         MT76_STATE_MCU_RUNNING,
 277         MT76_SCANNING,
 278         MT76_RESET,
 279         MT76_MCU_RESET,
 280         MT76_REMOVED,
 281         MT76_READING_STATS,
 282 };
 283
 284 struct mt76_hw_cap {
 285         bool has_2ghz;
 286         bool has_5ghz;
 287 };
 288
 289 #define MT_DRV_TXWI_NO_FREE             BIT(0)
 290 #define MT_DRV_TX_ALIGNED4_SKBS         BIT(1)
 291 #define MT_DRV_SW_RX_AIRTIME            BIT(2)
 292 #define MT_DRV_RX_DMA_HDR               BIT(3)
 293
 294 struct mt76_driver_ops {
 295         u32 drv_flags;
 296         u32 survey_flags;
 297         u16 txwi_size;
 298
 299         void (*update_survey)(struct mt76_dev *dev);
 300
 301         int (*tx_prepare_skb)(struct mt76_dev *dev, void *txwi_ptr,
 302                               enum mt76_txq_id qid, struct mt76_wcid *wcid,
 303                               struct ieee80211_sta *sta,
 304                               struct mt76_tx_info *tx_info);
 305
 306         void (*tx_complete_skb)(struct mt76_dev *dev, enum mt76_txq_id qid,
 307                                 struct mt76_queue_entry *e);
 308
 309         bool (*tx_status_data)(struct mt76_dev *dev, u8 *update);
 310
 311         void (*rx_skb)(struct mt76_dev *dev, enum mt76_rxq_id q,
 312                        struct sk_buff *skb);
 313
 314         void (*rx_poll_complete)(struct mt76_dev *dev, enum mt76_rxq_id q);
 315
 316         void (*sta_ps)(struct mt76_dev *dev, struct ieee80211_sta *sta,
 317                        bool ps);
 318
 319         int (*sta_add)(struct mt76_dev *dev, struct ieee80211_vif *vif,
 320                        struct ieee80211_sta *sta);
 321
 322         void (*sta_assoc)(struct mt76_dev *dev, struct ieee80211_vif *vif,
 323                           struct ieee80211_sta *sta);
 324
 325         void (*sta_remove)(struct mt76_dev *dev, struct ieee80211_vif *vif,
 326                            struct ieee80211_sta *sta);
 327 };
 328
 329 struct mt76_channel_state {
 330         u64 cc_active;
 331         u64 cc_busy;
 332         u64 cc_rx;
 333         u64 cc_bss_rx;
 334         u64 cc_tx;
 335
 336         s8 noise;
 337 };
 338
 339 struct mt76_sband {
 340         struct ieee80211_supported_band sband;
 341         struct mt76_channel_state *chan;
 342 };
 343
 344 struct mt76_rate_power {
 345         union {
 346                 struct {
 347                         s8 cck[4];
 348                         s8 ofdm[8];
 349                         s8 stbc[10];
 350                         s8 ht[16];
 351                         s8 vht[10];
 352                 };
 353                 s8 all[48];
 354         };
 355 };
 356
 357 /* addr req mask */
 358 #define MT_VEND_TYPE_EEPROM     BIT(31)
 359 #define MT_VEND_TYPE_CFG        BIT(30)
 360 #define MT_VEND_TYPE_MASK       (MT_VEND_TYPE_EEPROM | MT_VEND_TYPE_CFG)
 361
 362 #define MT_VEND_ADDR(type, n)   (MT_VEND_TYPE_##type | (n))
 363 enum mt_vendor_req {
 364         MT_VEND_DEV_MODE =      0x1,
 365         MT_VEND_WRITE =         0x2,
 366         MT_VEND_POWER_ON =      0x4,
 367         MT_VEND_MULTI_WRITE =   0x6,
 368         MT_VEND_MULTI_READ =    0x7,
 369         MT_VEND_READ_EEPROM =   0x9,
 370         MT_VEND_WRITE_FCE =     0x42,
 371         MT_VEND_WRITE_CFG =     0x46,
 372         MT_VEND_READ_CFG =      0x47,
 373         MT_VEND_READ_EXT =      0x63,
 374         MT_VEND_WRITE_EXT =     0x66,
 375 };
 376
 377 enum mt76u_in_ep {
 378         MT_EP_IN_PKT_RX,
 379         MT_EP_IN_CMD_RESP,
 380         __MT_EP_IN_MAX,
 381 };
 382
 383 enum mt76u_out_ep {
 384         MT_EP_OUT_INBAND_CMD,
 385         MT_EP_OUT_AC_BE,
 386         MT_EP_OUT_AC_BK,
 387         MT_EP_OUT_AC_VI,
 388         MT_EP_OUT_AC_VO,
 389         MT_EP_OUT_HCCA,
 390         __MT_EP_OUT_MAX,
 391 };
 392
 393 struct mt76_mcu {
 394         struct mutex mutex;
 395         u32 msg_seq;
 396
 397         struct sk_buff_head res_q;
 398         wait_queue_head_t wait;
 399 };
 400
 401 #define MT_TX_SG_MAX_SIZE       8
 402 #define MT_RX_SG_MAX_SIZE       4
 403 #define MT_NUM_TX_ENTRIES       256
 404 #define MT_NUM_RX_ENTRIES       128
 405 #define MCU_RESP_URB_SIZE       1024
 406 struct mt76_usb {
 407         struct mutex usb_ctrl_mtx;
 408         u8 *data;
 409         u16 data_len;
 410
 411         struct tasklet_struct rx_tasklet;
 412         struct workqueue_struct *wq;
 413         struct work_struct stat_work;
 414
 415         u8 out_ep[__MT_EP_OUT_MAX];
 416         u8 in_ep[__MT_EP_IN_MAX];
 417         bool sg_en;
 418
 419         struct mt76u_mcu {
 420                 u8 *data;
 421                 /* multiple reads */
 422                 struct mt76_reg_pair *rp;
 423                 int rp_len;
 424                 u32 base;
 425                 bool burst;
 426         } mcu;
 427 };
 428
 429 struct mt76_mmio {
 430         void __iomem *regs;
 431         spinlock_t irq_lock;
 432         u32 irqmask;
 433 };
 434
 435 struct mt76_rx_status {
 436         union {
 437                 struct mt76_wcid *wcid;
 438                 u8 wcid_idx;
 439         };
 440
 441         unsigned long reorder_time;
 442
 443         u32 ampdu_ref;
 444
 445         u8 iv[6];
 446
 447         u8 ext_phy:1;
 448         u8 aggr:1;
 449         u8 tid;
 450         u16 seqno;
 451
 452         u16 freq;
 453         u32 flag;
 454         u8 enc_flags;
 455         u8 encoding:2, bw:3;
 456         u8 rate_idx;
 457         u8 nss;
 458         u8 band;
 459         s8 signal;
 460         u8 chains;
 461         s8 chain_signal[IEEE80211_MAX_CHAINS];
 462 };
 463
 464 struct mt76_phy {
 465         struct ieee80211_hw *hw;
 466         struct mt76_dev *dev;
 467         void *priv;
 468
 469         unsigned long state;
 470
 471         struct cfg80211_chan_def chandef;
 472         struct ieee80211_channel *main_chan;
 473
 474         struct mt76_channel_state *chan_state;
 475         ktime_t survey_time;
 476
 477         struct mt76_sband sband_2g;
 478         struct mt76_sband sband_5g;
 479
 480         int txpower_cur;
 481         u8 antenna_mask;
 482 };
 483
 484 struct mt76_dev {
 485         struct mt76_phy phy; /* must be first */
 486
 487         struct mt76_phy *phy2;
 488
 489         struct ieee80211_hw *hw;
 490
 491         spinlock_t lock;
 492         spinlock_t cc_lock;
 493
 494         u32 cur_cc_bss_rx;
 495
 496         struct mt76_rx_status rx_ampdu_status;
 497         u32 rx_ampdu_len;
 498         u32 rx_ampdu_ref;
 499
 500         struct mutex mutex;
 501
 502         const struct mt76_bus_ops *bus;
 503         const struct mt76_driver_ops *drv;
 504         const struct mt76_mcu_ops *mcu_ops;
 505         struct device *dev;
 506
 507         struct mt76_mcu mcu;
 508
 509         struct net_device napi_dev;
 510         spinlock_t rx_lock;
 511         struct napi_struct napi[__MT_RXQ_MAX];
 512         struct sk_buff_head rx_skb[__MT_RXQ_MAX];
 513
 514         struct list_head txwi_cache;
 515         struct mt76_sw_queue q_tx[2 * __MT_TXQ_MAX];
 516         struct mt76_queue q_rx[__MT_RXQ_MAX];
 517         const struct mt76_queue_ops *queue_ops;
 518         int tx_dma_idx[4];
 519
 520         struct tasklet_struct tx_tasklet;
 521         struct napi_struct tx_napi;
 522         struct delayed_work mac_work;
 523
 524         wait_queue_head_t tx_wait;
 525         struct sk_buff_head status_list;
 526
 527         unsigned long wcid_mask[MT76_N_WCIDS / BITS_PER_LONG];
 528         unsigned long wcid_phy_mask[MT76_N_WCIDS / BITS_PER_LONG];
 529
 530         struct mt76_wcid global_wcid;
 531         struct mt76_wcid __rcu *wcid[MT76_N_WCIDS];
 532
 533         u8 macaddr[ETH_ALEN];
 534         u32 rev;
 535
 536         u32 aggr_stats[32];
 537
 538         struct tasklet_struct pre_tbtt_tasklet;
 539         int beacon_int;
 540         u8 beacon_mask;
 541
 542         struct debugfs_blob_wrapper eeprom;
 543         struct debugfs_blob_wrapper otp;
 544         struct mt76_hw_cap cap;
 545
 546         struct mt76_rate_power rate_power;
 547
 548         enum nl80211_dfs_regions region;
 549
 550         u32 debugfs_reg;
 551
 552         struct led_classdev led_cdev;
 553         char led_name[32];
 554         bool led_al;
 555         u8 led_pin;
 556
 557         u8 csa_complete;
 558
 559         u32 rxfilter;
 560
 561         union {
 562                 struct mt76_mmio mmio;
 563                 struct mt76_usb usb;
 564         };
 565 };
 566
 567 enum mt76_phy_type {
 568         MT_PHY_TYPE_CCK,
 569         MT_PHY_TYPE_OFDM,
 570         MT_PHY_TYPE_HT,
 571         MT_PHY_TYPE_HT_GF,
 572         MT_PHY_TYPE_VHT,
 573 };
 574
 575 #define __mt76_rr(dev, ...)     (dev)->bus->rr((dev), __VA_ARGS__)
 576 #define __mt76_wr(dev, ...)     (dev)->bus->wr((dev), __VA_ARGS__)
 577 #define __mt76_rmw(dev, ...)    (dev)->bus->rmw((dev), __VA_ARGS__)
 578 #define __mt76_wr_copy(dev, ...)        (dev)->bus->write_copy((dev), __VA_ARGS__)
 579 #define __mt76_rr_copy(dev, ...)        (dev)->bus->read_copy((dev), __VA_ARGS__)
 580
 581 #define __mt76_set(dev, offset, val)    __mt76_rmw(dev, offset, 0, val)
 582 #define __mt76_clear(dev, offset, val)  __mt76_rmw(dev, offset, val, 0)
 583
 584 #define mt76_rr(dev, ...)       (dev)->mt76.bus->rr(&((dev)->mt76), __VA_ARGS__)
 585 #define mt76_wr(dev, ...)       (dev)->mt76.bus->wr(&((dev)->mt76), __VA_ARGS__)
 586 #define mt76_rmw(dev, ...)      (dev)->mt76.bus->rmw(&((dev)->mt76), __VA_ARGS__)
 587 #define mt76_wr_copy(dev, ...)  (dev)->mt76.bus->write_copy(&((dev)->mt76), __VA_ARGS__)
 588 #define mt76_rr_copy(dev, ...)  (dev)->mt76.bus->read_copy(&((dev)->mt76), __VA_ARGS__)
 589 #define mt76_wr_rp(dev, ...)    (dev)->mt76.bus->wr_rp(&((dev)->mt76), __VA_ARGS__)
 590 #define mt76_rd_rp(dev, ...)    (dev)->mt76.bus->rd_rp(&((dev)->mt76), __VA_ARGS__)
 591
 592 #define mt76_mcu_send_msg(dev, ...)     (dev)->mt76.mcu_ops->mcu_send_msg(&((dev)->mt76), __VA_ARGS__)
 593
 594 #define __mt76_mcu_send_msg(dev, ...)   (dev)->mcu_ops->mcu_send_msg((dev), __VA_ARGS__)
 595 #define __mt76_mcu_skb_send_msg(dev, ...)       (dev)->mcu_ops->mcu_skb_send_msg((dev), __VA_ARGS__)
 596 #define mt76_mcu_restart(dev, ...)      (dev)->mt76.mcu_ops->mcu_restart(&((dev)->mt76))
 597 #define __mt76_mcu_restart(dev, ...)    (dev)->mcu_ops->mcu_restart((dev))
 598
 599 #define mt76_set(dev, offset, val)      mt76_rmw(dev, offset, 0, val)
 600 #define mt76_clear(dev, offset, val)    mt76_rmw(dev, offset, val, 0)
 601
 602 #define mt76_get_field(_dev, _reg, _field)              \
 603         FIELD_GET(_field, mt76_rr(dev, _reg))
 604
 605 #define mt76_rmw_field(_dev, _reg, _field, _val)        \
 606         mt76_rmw(_dev, _reg, _field, FIELD_PREP(_field, _val))
 607
 608 #define __mt76_rmw_field(_dev, _reg, _field, _val)      \
 609         __mt76_rmw(_dev, _reg, _field, FIELD_PREP(_field, _val))
 610
 611 #define mt76_hw(dev) (dev)->mphy.hw
 612
 613 static inline struct ieee80211_hw *
 614 mt76_wcid_hw(struct mt76_dev *dev, u8 wcid)
 615 {
 616         if (wcid <= MT76_N_WCIDS &&
 617             mt76_wcid_mask_test(dev->wcid_phy_mask, wcid))
 618                 return dev->phy2->hw;
 619
 620         return dev->phy.hw;
 621 }
 622
 623 bool __mt76_poll(struct mt76_dev *dev, u32 offset, u32 mask, u32 val,
 624                  int timeout);
 625
 626 #define mt76_poll(dev, ...) __mt76_poll(&((dev)->mt76), __VA_ARGS__)
 627
 628 bool __mt76_poll_msec(struct mt76_dev *dev, u32 offset, u32 mask, u32 val,
 629                       int timeout);
 630
 631 #define mt76_poll_msec(dev, ...) __mt76_poll_msec(&((dev)->mt76), __VA_ARGS__)
 632
 633 void mt76_mmio_init(struct mt76_dev *dev, void __iomem *regs);
 634 void mt76_pci_disable_aspm(struct pci_dev *pdev);
 635
 636 static inline u16 mt76_chip(struct mt76_dev *dev)
 637 {
 638         return dev->rev >> 16;
 639 }
 640
 641 static inline u16 mt76_rev(struct mt76_dev *dev)
 642 {
 643         return dev->rev & 0xffff;
 644 }
 645
 646 #define mt76xx_chip(dev) mt76_chip(&((dev)->mt76))
 647 #define mt76xx_rev(dev) mt76_rev(&((dev)->mt76))
 648
 649 #define mt76_init_queues(dev)           (dev)->mt76.queue_ops->init(&((dev)->mt76))
 650 #define mt76_queue_alloc(dev, ...)      (dev)->mt76.queue_ops->alloc(&((dev)->mt76), __VA_ARGS__)
 651 #define mt76_tx_queue_skb_raw(dev, ...) (dev)->mt76.queue_ops->tx_queue_skb_raw(&((dev)->mt76), __VA_ARGS__)
 652 #define mt76_tx_queue_skb(dev, ...)     (dev)->mt76.queue_ops->tx_queue_skb(&((dev)->mt76), __VA_ARGS__)
 653 #define mt76_queue_rx_reset(dev, ...)   (dev)->mt76.queue_ops->rx_reset(&((dev)->mt76), __VA_ARGS__)
 654 #define mt76_queue_tx_cleanup(dev, ...) (dev)->mt76.queue_ops->tx_cleanup(&((dev)->mt76), __VA_ARGS__)
 655 #define mt76_queue_kick(dev, ...)       (dev)->mt76.queue_ops->kick(&((dev)->mt76), __VA_ARGS__)
 656
 657 struct mt76_dev *mt76_alloc_device(struct device *pdev, unsigned int size,
 658                                    const struct ieee80211_ops *ops,
 659                                    const struct mt76_driver_ops *drv_ops);
 660 int mt76_register_device(struct mt76_dev *dev, bool vht,
 661                          struct ieee80211_rate *rates, int n_rates);
 662 void mt76_unregister_device(struct mt76_dev *dev);
 663 void mt76_free_device(struct mt76_dev *dev);
 664 void mt76_unregister_phy(struct mt76_phy *phy);
 665
 666 struct mt76_phy *mt76_alloc_phy(struct mt76_dev *dev, unsigned int size,
 667                                 const struct ieee80211_ops *ops);
 668 int mt76_register_phy(struct mt76_phy *phy);
 669
 670 struct dentry *mt76_register_debugfs(struct mt76_dev *dev);
 671 int mt76_queues_read(struct seq_file *s, void *data);
 672 void mt76_seq_puts_array(struct seq_file *file, const char *str,
 673                          s8 *val, int len);
 674
 675 int mt76_eeprom_init(struct mt76_dev *dev, int len);
 676 void mt76_eeprom_override(struct mt76_dev *dev);
 677
 678 static inline struct mt76_phy *
 679 mt76_dev_phy(struct mt76_dev *dev, bool phy_ext)
 680 {
 681         if (phy_ext && dev->phy2)
 682                 return dev->phy2;
 683         return &dev->phy;
 684 }
 685
 686 static inline struct ieee80211_hw *
 687 mt76_phy_hw(struct mt76_dev *dev, bool phy_ext)
 688 {
 689         return mt76_dev_phy(dev, phy_ext)->hw;
 690 }
 691
 692 static inline u8 *
 693 mt76_get_txwi_ptr(struct mt76_dev *dev, struct mt76_txwi_cache *t)
 694 {
 695         return (u8 *)t - dev->drv->txwi_size;
 696 }
 697
 698 /* increment with wrap-around */
 699 static inline int mt76_incr(int val, int size)
 700 {
 701         return (val + 1) & (size - 1);
 702 }
 703
 704 /* decrement with wrap-around */
 705 static inline int mt76_decr(int val, int size)
 706 {
 707         return (val - 1) & (size - 1);
 708 }
 709
 710 u8 mt76_ac_to_hwq(u8 ac);
 711
 712 static inline struct ieee80211_txq *
 713 mtxq_to_txq(struct mt76_txq *mtxq)
 714 {
 715         void *ptr = mtxq;
 716
 717         return container_of(ptr, struct ieee80211_txq, drv_priv);
 718 }
 719
 720 static inline struct ieee80211_sta *
 721 wcid_to_sta(struct mt76_wcid *wcid)
 722 {
 723         void *ptr = wcid;
 724
 725         if (!wcid || !wcid->sta)
 726                 return NULL;
 727
 728         return container_of(ptr, struct ieee80211_sta, drv_priv);
 729 }
 730
 731 static inline struct mt76_tx_cb *mt76_tx_skb_cb(struct sk_buff *skb)
 732 {
 733         BUILD_BUG_ON(sizeof(struct mt76_tx_cb) >
 734                      sizeof(IEEE80211_SKB_CB(skb)->status.status_driver_data));
 735         return ((void *)IEEE80211_SKB_CB(skb)->status.status_driver_data);
 736 }
 737
 738 static inline void mt76_insert_hdr_pad(struct sk_buff *skb)
 739 {
 740         int len = ieee80211_get_hdrlen_from_skb(skb);
 741
 742         if (len % 4 == 0)
 743                 return;
 744
 745         skb_push(skb, 2);
 746         memmove(skb->data, skb->data + 2, len);
 747
 748         skb->data[len] = 0;
 749         skb->data[len + 1] = 0;
 750 }
 751
 752 static inline bool mt76_is_skb_pktid(u8 pktid)
 753 {
 754         if (pktid & MT_PACKET_ID_HAS_RATE)
 755                 return false;
 756
 757         return pktid >= MT_PACKET_ID_FIRST;
 758 }
 759
 760 static inline u8 mt76_tx_power_nss_delta(u8 nss)
 761 {
 762         static const u8 nss_delta[4] = { 0, 6, 9, 12 };
 763
 764         return nss_delta[nss - 1];
 765 }
 766
 767 void mt76_rx(struct mt76_dev *dev, enum mt76_rxq_id q, struct sk_buff *skb);
 768 void mt76_tx(struct mt76_phy *dev, struct ieee80211_sta *sta,
 769              struct mt76_wcid *wcid, struct sk_buff *skb);
 770 void mt76_txq_init(struct mt76_dev *dev, struct ieee80211_txq *txq);
 771 void mt76_txq_remove(struct mt76_dev *dev, struct ieee80211_txq *txq);
 772 void mt76_wake_tx_queue(struct ieee80211_hw *hw, struct ieee80211_txq *txq);
 773 void mt76_stop_tx_queues(struct mt76_dev *dev, struct ieee80211_sta *sta,
 774                          bool send_bar);
 775 void mt76_txq_schedule(struct mt76_phy *phy, enum mt76_txq_id qid);
 776 void mt76_txq_schedule_all(struct mt76_phy *phy);
 777 void mt76_tx_tasklet(unsigned long data);
 778 void mt76_release_buffered_frames(struct ieee80211_hw *hw,
 779                                   struct ieee80211_sta *sta,
 780                                   u16 tids, int nframes,
 781                                   enum ieee80211_frame_release_type reason,
 782                                   bool more_data);
 783 bool mt76_has_tx_pending(struct mt76_phy *phy);
 784 void mt76_set_channel(struct mt76_phy *phy);
 785 void mt76_update_survey(struct mt76_dev *dev);
 786 int mt76_get_survey(struct ieee80211_hw *hw, int idx,
 787                     struct survey_info *survey);
 788 void mt76_set_stream_caps(struct mt76_dev *dev, bool vht);
 789
 790 int mt76_rx_aggr_start(struct mt76_dev *dev, struct mt76_wcid *wcid, u8 tid,
 791                        u16 ssn, u8 size);
 792 void mt76_rx_aggr_stop(struct mt76_dev *dev, struct mt76_wcid *wcid, u8 tid);
 793
 794 void mt76_wcid_key_setup(struct mt76_dev *dev, struct mt76_wcid *wcid,
 795                          struct ieee80211_key_conf *key);
 796
 797 void mt76_tx_status_lock(struct mt76_dev *dev, struct sk_buff_head *list)
 798                          __acquires(&dev->status_list.lock);
 799 void mt76_tx_status_unlock(struct mt76_dev *dev, struct sk_buff_head *list)
 800                            __releases(&dev->status_list.lock);
 801
 802 int mt76_tx_status_skb_add(struct mt76_dev *dev, struct mt76_wcid *wcid,
 803                            struct sk_buff *skb);
 804 struct sk_buff *mt76_tx_status_skb_get(struct mt76_dev *dev,
 805                                        struct mt76_wcid *wcid, int pktid,
 806                                        struct sk_buff_head *list);
 807 void mt76_tx_status_skb_done(struct mt76_dev *dev, struct sk_buff *skb,
 808                              struct sk_buff_head *list);
 809 void mt76_tx_complete_skb(struct mt76_dev *dev, struct sk_buff *skb);
 810 void mt76_tx_status_check(struct mt76_dev *dev, struct mt76_wcid *wcid,
 811                           bool flush);
 812 int mt76_sta_state(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 813                    struct ieee80211_sta *sta,
 814                    enum ieee80211_sta_state old_state,
 815                    enum ieee80211_sta_state new_state);
 816 void __mt76_sta_remove(struct mt76_dev *dev, struct ieee80211_vif *vif,
 817                        struct ieee80211_sta *sta);
 818 void mt76_sta_pre_rcu_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 819                              struct ieee80211_sta *sta);
 820
 821 int mt76_get_min_avg_rssi(struct mt76_dev *dev, bool ext_phy);
 822
 823 int mt76_get_txpower(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 824                      int *dbm);
 825
 826 void mt76_csa_check(struct mt76_dev *dev);
 827 void mt76_csa_finish(struct mt76_dev *dev);
 828
 829 int mt76_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant);
 830 int mt76_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set);
 831 void mt76_insert_ccmp_hdr(struct sk_buff *skb, u8 key_id);
 832 int mt76_get_rate(struct mt76_dev *dev,
 833                   struct ieee80211_supported_band *sband,
 834                   int idx, bool cck);
 835 void mt76_sw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 836                   const u8 *mac);
 837 void mt76_sw_scan_complete(struct ieee80211_hw *hw,
 838                            struct ieee80211_vif *vif);
 839
 840 /* internal */
 841 static inline struct ieee80211_hw *
 842 mt76_tx_status_get_hw(struct mt76_dev *dev, struct sk_buff *skb)
 843 {
 844         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 845         struct ieee80211_hw *hw = dev->phy.hw;
 846
 847         if ((info->hw_queue & MT_TX_HW_QUEUE_EXT_PHY) && dev->phy2)
 848                 hw = dev->phy2->hw;
 849
 850         info->hw_queue &= ~MT_TX_HW_QUEUE_EXT_PHY;
 851
 852         return hw;
 853 }
 854
 855 void mt76_tx_free(struct mt76_dev *dev);
 856 struct mt76_txwi_cache *mt76_get_txwi(struct mt76_dev *dev);
 857 void mt76_put_txwi(struct mt76_dev *dev, struct mt76_txwi_cache *t);
 858 void mt76_rx_complete(struct mt76_dev *dev, struct sk_buff_head *frames,
 859                       struct napi_struct *napi);
 860 void mt76_rx_poll_complete(struct mt76_dev *dev, enum mt76_rxq_id q,
 861                            struct napi_struct *napi);
 862 void mt76_rx_aggr_reorder(struct sk_buff *skb, struct sk_buff_head *frames);
 863
 864 /* usb */
 865 static inline bool mt76u_urb_error(struct urb *urb)
 866 {
 867         return urb->status &&
 868                urb->status != -ECONNRESET &&
 869                urb->status != -ESHUTDOWN &&
 870                urb->status != -ENOENT;
 871 }
 872
 873 /* Map hardware queues to usb endpoints */
 874 static inline u8 q2ep(u8 qid)
 875 {
 876         /* TODO: take management packets to queue 5 */
 877         return qid + 1;
 878 }
 879
 880 static inline int
 881 mt76u_bulk_msg(struct mt76_dev *dev, void *data, int len, int *actual_len,
 882                int timeout, int ep)
 883 {
 884         struct usb_interface *uintf = to_usb_interface(dev->dev);
 885         struct usb_device *udev = interface_to_usbdev(uintf);
 886         struct mt76_usb *usb = &dev->usb;
 887         unsigned int pipe;
 888
 889         if (actual_len)
 890                 pipe = usb_rcvbulkpipe(udev, usb->in_ep[ep]);
 891         else
 892                 pipe = usb_sndbulkpipe(udev, usb->out_ep[ep]);
 893
 894         return usb_bulk_msg(udev, pipe, data, len, actual_len, timeout);
 895 }
 896
 897 int mt76u_skb_dma_info(struct sk_buff *skb, u32 info);
 898 int mt76u_vendor_request(struct mt76_dev *dev, u8 req,
 899                          u8 req_type, u16 val, u16 offset,
 900                          void *buf, size_t len);
 901 void mt76u_single_wr(struct mt76_dev *dev, const u8 req,
 902                      const u16 offset, const u32 val);
 903 void mt76u_deinit(struct mt76_dev *dev);
 904 int mt76u_init(struct mt76_dev *dev, struct usb_interface *intf,
 905                bool ext);
 906 int mt76u_alloc_mcu_queue(struct mt76_dev *dev);
 907 int mt76u_alloc_queues(struct mt76_dev *dev);
 908 void mt76u_stop_tx(struct mt76_dev *dev);
 909 void mt76u_stop_rx(struct mt76_dev *dev);
 910 int mt76u_resume_rx(struct mt76_dev *dev);
 911 void mt76u_queues_deinit(struct mt76_dev *dev);
 912
 913 struct sk_buff *
 914 mt76_mcu_msg_alloc(const void *data, int head_len,
 915                    int data_len, int tail_len);
 916 void mt76_mcu_rx_event(struct mt76_dev *dev, struct sk_buff *skb);
 917 struct sk_buff *mt76_mcu_get_response(struct mt76_dev *dev,
 918                                       unsigned long expires);
 919
 920 void mt76_set_irq_mask(struct mt76_dev *dev, u32 addr, u32 clear, u32 set);
 921
 922 #endif