drivers/net/wireless/ath/wil6210/wmi.c

   1 /*
   2  * Copyright (c) 2012-2017 Qualcomm Atheros, Inc.
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #include <linux/moduleparam.h>
  18 #include <linux/etherdevice.h>
  19 #include <linux/if_arp.h>
  20
  21 #include "wil6210.h"
  22 #include "txrx.h"
  23 #include "wmi.h"
  24 #include "trace.h"
  25
  26 static uint max_assoc_sta = WIL6210_MAX_CID;
  27 module_param(max_assoc_sta, uint, 0644);
  28 MODULE_PARM_DESC(max_assoc_sta, " Max number of stations associated to the AP");
  29
  30 int agg_wsize; /* = 0; */
  31 module_param(agg_wsize, int, 0644);
  32 MODULE_PARM_DESC(agg_wsize, " Window size for Tx Block Ack after connect;"
  33                  " 0 - use default; < 0 - don't auto-establish");
  34
  35 u8 led_id = WIL_LED_INVALID_ID;
  36 module_param(led_id, byte, 0444);
  37 MODULE_PARM_DESC(led_id,
  38                  " 60G device led enablement. Set the led ID (0-2) to enable");
  39
  40 #define WIL_WAIT_FOR_SUSPEND_RESUME_COMP 200
  41
  42 /**
  43  * WMI event receiving - theory of operations
  44  *
  45  * When firmware about to report WMI event, it fills memory area
  46  * in the mailbox and raises misc. IRQ. Thread interrupt handler invoked for
  47  * the misc IRQ, function @wmi_recv_cmd called by thread IRQ handler.
  48  *
  49  * @wmi_recv_cmd reads event, allocates memory chunk  and attaches it to the
  50  * event list @wil->pending_wmi_ev. Then, work queue @wil->wmi_wq wakes up
  51  * and handles events within the @wmi_event_worker. Every event get detached
  52  * from list, processed and deleted.
  53  *
  54  * Purpose for this mechanism is to release IRQ thread; otherwise,
  55  * if WMI event handling involves another WMI command flow, this 2-nd flow
  56  * won't be completed because of blocked IRQ thread.
  57  */
  58
  59 /**
  60  * Addressing - theory of operations
  61  *
  62  * There are several buses present on the WIL6210 card.
  63  * Same memory areas are visible at different address on
  64  * the different busses. There are 3 main bus masters:
  65  *  - MAC CPU (ucode)
  66  *  - User CPU (firmware)
  67  *  - AHB (host)
  68  *
  69  * On the PCI bus, there is one BAR (BAR0) of 2Mb size, exposing
  70  * AHB addresses starting from 0x880000
  71  *
  72  * Internally, firmware uses addresses that allows faster access but
  73  * are invisible from the host. To read from these addresses, alternative
  74  * AHB address must be used.
  75  *
  76  * Memory mapping
  77  * Linker address         PCI/Host address
  78  *                        0x880000 .. 0xa80000  2Mb BAR0
  79  * 0x800000 .. 0x807000   0x900000 .. 0x907000  28k DCCM
  80  * 0x840000 .. 0x857000   0x908000 .. 0x91f000  92k PERIPH
  81  */
  82
  83 /**
  84  * @fw_mapping provides memory remapping table
  85  *
  86  * array size should be in sync with the declaration in the wil6210.h
  87  */
  88 const struct fw_map fw_mapping[] = {
  89         /* FW code RAM 256k */
  90         {0x000000, 0x040000, 0x8c0000, "fw_code", true},
  91         /* FW data RAM 32k */
  92         {0x800000, 0x808000, 0x900000, "fw_data", true},
  93         /* periph data 128k */
  94         {0x840000, 0x860000, 0x908000, "fw_peri", true},
  95         /* various RGF 40k */
  96         {0x880000, 0x88a000, 0x880000, "rgf", true},
  97         /* AGC table   4k */
  98         {0x88a000, 0x88b000, 0x88a000, "AGC_tbl", true},
  99         /* Pcie_ext_rgf 4k */
 100         {0x88b000, 0x88c000, 0x88b000, "rgf_ext", true},
 101         /* mac_ext_rgf 512b */
 102         {0x88c000, 0x88c200, 0x88c000, "mac_rgf_ext", true},
 103         /* upper area 548k */
 104         {0x8c0000, 0x949000, 0x8c0000, "upper", true},
 105         /* UCODE areas - accessible by debugfs blobs but not by
 106          * wmi_addr_remap. UCODE areas MUST be added AFTER FW areas!
 107          */
 108         /* ucode code RAM 128k */
 109         {0x000000, 0x020000, 0x920000, "uc_code", false},
 110         /* ucode data RAM 16k */
 111         {0x800000, 0x804000, 0x940000, "uc_data", false},
 112 };
 113
 114 struct blink_on_off_time led_blink_time[] = {
 115         {WIL_LED_BLINK_ON_SLOW_MS, WIL_LED_BLINK_OFF_SLOW_MS},
 116         {WIL_LED_BLINK_ON_MED_MS, WIL_LED_BLINK_OFF_MED_MS},
 117         {WIL_LED_BLINK_ON_FAST_MS, WIL_LED_BLINK_OFF_FAST_MS},
 118 };
 119
 120 u8 led_polarity = LED_POLARITY_LOW_ACTIVE;
 121
 122 /**
 123  * return AHB address for given firmware internal (linker) address
 124  * @x - internal address
 125  * If address have no valid AHB mapping, return 0
 126  */
 127 static u32 wmi_addr_remap(u32 x)
 128 {
 129         uint i;
 130
 131         for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
 132                 if (fw_mapping[i].fw &&
 133                     ((x >= fw_mapping[i].from) && (x < fw_mapping[i].to)))
 134                         return x + fw_mapping[i].host - fw_mapping[i].from;
 135         }
 136
 137         return 0;
 138 }
 139
 140 /**
 141  * Check address validity for WMI buffer; remap if needed
 142  * @ptr - internal (linker) fw/ucode address
 143  * @size - if non zero, validate the block does not
 144  *  exceed the device memory (bar)
 145  *
 146  * Valid buffer should be DWORD aligned
 147  *
 148  * return address for accessing buffer from the host;
 149  * if buffer is not valid, return NULL.
 150  */
 151 void __iomem *wmi_buffer_block(struct wil6210_priv *wil, __le32 ptr_, u32 size)
 152 {
 153         u32 off;
 154         u32 ptr = le32_to_cpu(ptr_);
 155
 156         if (ptr % 4)
 157                 return NULL;
 158
 159         ptr = wmi_addr_remap(ptr);
 160         if (ptr < WIL6210_FW_HOST_OFF)
 161                 return NULL;
 162
 163         off = HOSTADDR(ptr);
 164         if (off > wil->bar_size - 4)
 165                 return NULL;
 166         if (size && ((off + size > wil->bar_size) || (off + size < off)))
 167                 return NULL;
 168
 169         return wil->csr + off;
 170 }
 171
 172 void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr_)
 173 {
 174         return wmi_buffer_block(wil, ptr_, 0);
 175 }
 176
 177 /**
 178  * Check address validity
 179  */
 180 void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr)
 181 {
 182         u32 off;
 183
 184         if (ptr % 4)
 185                 return NULL;
 186
 187         if (ptr < WIL6210_FW_HOST_OFF)
 188                 return NULL;
 189
 190         off = HOSTADDR(ptr);
 191         if (off > wil->bar_size - 4)
 192                 return NULL;
 193
 194         return wil->csr + off;
 195 }
 196
 197 int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr,
 198                  struct wil6210_mbox_hdr *hdr)
 199 {
 200         void __iomem *src = wmi_buffer(wil, ptr);
 201
 202         if (!src)
 203                 return -EINVAL;
 204
 205         wil_memcpy_fromio_32(hdr, src, sizeof(*hdr));
 206
 207         return 0;
 208 }
 209
 210 static int __wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
 211 {
 212         struct {
 213                 struct wil6210_mbox_hdr hdr;
 214                 struct wmi_cmd_hdr wmi;
 215         } __packed cmd = {
 216                 .hdr = {
 217                         .type = WIL_MBOX_HDR_TYPE_WMI,
 218                         .flags = 0,
 219                         .len = cpu_to_le16(sizeof(cmd.wmi) + len),
 220                 },
 221                 .wmi = {
 222                         .mid = 0,
 223                         .command_id = cpu_to_le16(cmdid),
 224                 },
 225         };
 226         struct wil6210_mbox_ring *r = &wil->mbox_ctl.tx;
 227         struct wil6210_mbox_ring_desc d_head;
 228         u32 next_head;
 229         void __iomem *dst;
 230         void __iomem *head = wmi_addr(wil, r->head);
 231         uint retry;
 232         int rc = 0;
 233
 234         if (len > r->entry_size - sizeof(cmd)) {
 235                 wil_err(wil, "WMI size too large: %d bytes, max is %d\n",
 236                         (int)(sizeof(cmd) + len), r->entry_size);
 237                 return -ERANGE;
 238         }
 239
 240         might_sleep();
 241
 242         if (!test_bit(wil_status_fwready, wil->status)) {
 243                 wil_err(wil, "WMI: cannot send command while FW not ready\n");
 244                 return -EAGAIN;
 245         }
 246
 247         /* Allow sending only suspend / resume commands during susepnd flow */
 248         if ((test_bit(wil_status_suspending, wil->status) ||
 249              test_bit(wil_status_suspended, wil->status) ||
 250              test_bit(wil_status_resuming, wil->status)) &&
 251              ((cmdid != WMI_TRAFFIC_SUSPEND_CMDID) &&
 252               (cmdid != WMI_TRAFFIC_RESUME_CMDID))) {
 253                 wil_err(wil, "WMI: reject send_command during suspend\n");
 254                 return -EINVAL;
 255         }
 256
 257         if (!head) {
 258                 wil_err(wil, "WMI head is garbage: 0x%08x\n", r->head);
 259                 return -EINVAL;
 260         }
 261
 262         wil_halp_vote(wil);
 263
 264         /* read Tx head till it is not busy */
 265         for (retry = 5; retry > 0; retry--) {
 266                 wil_memcpy_fromio_32(&d_head, head, sizeof(d_head));
 267                 if (d_head.sync == 0)
 268                         break;
 269                 msleep(20);
 270         }
 271         if (d_head.sync != 0) {
 272                 wil_err(wil, "WMI head busy\n");
 273                 rc = -EBUSY;
 274                 goto out;
 275         }
 276         /* next head */
 277         next_head = r->base + ((r->head - r->base + sizeof(d_head)) % r->size);
 278         wil_dbg_wmi(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head);
 279         /* wait till FW finish with previous command */
 280         for (retry = 5; retry > 0; retry--) {
 281                 if (!test_bit(wil_status_fwready, wil->status)) {
 282                         wil_err(wil, "WMI: cannot send command while FW not ready\n");
 283                         rc = -EAGAIN;
 284                         goto out;
 285                 }
 286                 r->tail = wil_r(wil, RGF_MBOX +
 287                                 offsetof(struct wil6210_mbox_ctl, tx.tail));
 288                 if (next_head != r->tail)
 289                         break;
 290                 msleep(20);
 291         }
 292         if (next_head == r->tail) {
 293                 wil_err(wil, "WMI ring full\n");
 294                 rc = -EBUSY;
 295                 goto out;
 296         }
 297         dst = wmi_buffer(wil, d_head.addr);
 298         if (!dst) {
 299                 wil_err(wil, "invalid WMI buffer: 0x%08x\n",
 300                         le32_to_cpu(d_head.addr));
 301                 rc = -EAGAIN;
 302                 goto out;
 303         }
 304         cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq);
 305         /* set command */
 306         wil_dbg_wmi(wil, "WMI command 0x%04x [%d]\n", cmdid, len);
 307         wil_hex_dump_wmi("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd,
 308                          sizeof(cmd), true);
 309         wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf,
 310                          len, true);
 311         wil_memcpy_toio_32(dst, &cmd, sizeof(cmd));
 312         wil_memcpy_toio_32(dst + sizeof(cmd), buf, len);
 313         /* mark entry as full */
 314         wil_w(wil, r->head + offsetof(struct wil6210_mbox_ring_desc, sync), 1);
 315         /* advance next ptr */
 316         wil_w(wil, RGF_MBOX + offsetof(struct wil6210_mbox_ctl, tx.head),
 317               r->head = next_head);
 318
 319         trace_wil6210_wmi_cmd(&cmd.wmi, buf, len);
 320
 321         /* interrupt to FW */
 322         wil_w(wil, RGF_USER_USER_ICR + offsetof(struct RGF_ICR, ICS),
 323               SW_INT_MBOX);
 324
 325 out:
 326         wil_halp_unvote(wil);
 327         return rc;
 328 }
 329
 330 int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
 331 {
 332         int rc;
 333
 334         mutex_lock(&wil->wmi_mutex);
 335         rc = __wmi_send(wil, cmdid, buf, len);
 336         mutex_unlock(&wil->wmi_mutex);
 337
 338         return rc;
 339 }
 340
 341 /*=== Event handlers ===*/
 342 static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len)
 343 {
 344         struct wireless_dev *wdev = wil->wdev;
 345         struct wmi_ready_event *evt = d;
 346
 347         wil->n_mids = evt->numof_additional_mids;
 348
 349         wil_info(wil, "FW ver. %s(SW %d); MAC %pM; %d MID's\n",
 350                  wil->fw_version, le32_to_cpu(evt->sw_version),
 351                  evt->mac, wil->n_mids);
 352         /* ignore MAC address, we already have it from the boot loader */
 353         strlcpy(wdev->wiphy->fw_version, wil->fw_version,
 354                 sizeof(wdev->wiphy->fw_version));
 355
 356         if (len > offsetof(struct wmi_ready_event, rfc_read_calib_result)) {
 357                 wil_dbg_wmi(wil, "rfc calibration result %d\n",
 358                             evt->rfc_read_calib_result);
 359                 wil->fw_calib_result = evt->rfc_read_calib_result;
 360         }
 361         wil_set_recovery_state(wil, fw_recovery_idle);
 362         set_bit(wil_status_fwready, wil->status);
 363         /* let the reset sequence continue */
 364         complete(&wil->wmi_ready);
 365 }
 366
 367 static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
 368 {
 369         struct wmi_rx_mgmt_packet_event *data = d;
 370         struct wiphy *wiphy = wil_to_wiphy(wil);
 371         struct ieee80211_mgmt *rx_mgmt_frame =
 372                         (struct ieee80211_mgmt *)data->payload;
 373         int flen = len - offsetof(struct wmi_rx_mgmt_packet_event, payload);
 374         int ch_no;
 375         u32 freq;
 376         struct ieee80211_channel *channel;
 377         s32 signal;
 378         __le16 fc;
 379         u32 d_len;
 380         u16 d_status;
 381
 382         if (flen < 0) {
 383                 wil_err(wil, "MGMT Rx: short event, len %d\n", len);
 384                 return;
 385         }
 386
 387         d_len = le32_to_cpu(data->info.len);
 388         if (d_len != flen) {
 389                 wil_err(wil,
 390                         "MGMT Rx: length mismatch, d_len %d should be %d\n",
 391                         d_len, flen);
 392                 return;
 393         }
 394
 395         ch_no = data->info.channel + 1;
 396         freq = ieee80211_channel_to_frequency(ch_no, NL80211_BAND_60GHZ);
 397         channel = ieee80211_get_channel(wiphy, freq);
 398         if (test_bit(WMI_FW_CAPABILITY_RSSI_REPORTING, wil->fw_capabilities))
 399                 signal = 100 * data->info.rssi;
 400         else
 401                 signal = data->info.sqi;
 402         d_status = le16_to_cpu(data->info.status);
 403         fc = rx_mgmt_frame->frame_control;
 404
 405         wil_dbg_wmi(wil, "MGMT Rx: channel %d MCS %d RSSI %d SQI %d%%\n",
 406                     data->info.channel, data->info.mcs, data->info.rssi,
 407                     data->info.sqi);
 408         wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len,
 409                     le16_to_cpu(fc));
 410         wil_dbg_wmi(wil, "qid %d mid %d cid %d\n",
 411                     data->info.qid, data->info.mid, data->info.cid);
 412         wil_hex_dump_wmi("MGMT Rx ", DUMP_PREFIX_OFFSET, 16, 1, rx_mgmt_frame,
 413                          d_len, true);
 414
 415         if (!channel) {
 416                 wil_err(wil, "Frame on unsupported channel\n");
 417                 return;
 418         }
 419
 420         if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) {
 421                 struct cfg80211_bss *bss;
 422                 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp);
 423                 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info);
 424                 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int);
 425                 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable;
 426                 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt,
 427                                                  u.beacon.variable);
 428                 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);
 429                 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf);
 430                 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi);
 431                 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf,
 432                                  ie_len, true);
 433
 434                 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);
 435
 436                 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame,
 437                                                 d_len, signal, GFP_KERNEL);
 438                 if (bss) {
 439                         wil_dbg_wmi(wil, "Added BSS %pM\n",
 440                                     rx_mgmt_frame->bssid);
 441                         cfg80211_put_bss(wiphy, bss);
 442                 } else {
 443                         wil_err(wil, "cfg80211_inform_bss_frame() failed\n");
 444                 }
 445         } else {
 446                 mutex_lock(&wil->p2p_wdev_mutex);
 447                 cfg80211_rx_mgmt(wil->radio_wdev, freq, signal,
 448                                  (void *)rx_mgmt_frame, d_len, 0);
 449                 mutex_unlock(&wil->p2p_wdev_mutex);
 450         }
 451 }
 452
 453 static void wmi_evt_tx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
 454 {
 455         struct wmi_tx_mgmt_packet_event *data = d;
 456         struct ieee80211_mgmt *mgmt_frame =
 457                         (struct ieee80211_mgmt *)data->payload;
 458         int flen = len - offsetof(struct wmi_tx_mgmt_packet_event, payload);
 459
 460         wil_hex_dump_wmi("MGMT Tx ", DUMP_PREFIX_OFFSET, 16, 1, mgmt_frame,
 461                          flen, true);
 462 }
 463
 464 static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id,
 465                                   void *d, int len)
 466 {
 467         mutex_lock(&wil->p2p_wdev_mutex);
 468         if (wil->scan_request) {
 469                 struct wmi_scan_complete_event *data = d;
 470                 int status = le32_to_cpu(data->status);
 471                 struct cfg80211_scan_info info = {
 472                         .aborted = ((status != WMI_SCAN_SUCCESS) &&
 473                                 (status != WMI_SCAN_ABORT_REJECTED)),
 474                 };
 475
 476                 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", status);
 477                 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n",
 478                              wil->scan_request, info.aborted);
 479                 del_timer_sync(&wil->scan_timer);
 480                 cfg80211_scan_done(wil->scan_request, &info);
 481                 wil->radio_wdev = wil->wdev;
 482                 wil->scan_request = NULL;
 483                 wake_up_interruptible(&wil->wq);
 484                 if (wil->p2p.pending_listen_wdev) {
 485                         wil_dbg_misc(wil, "Scheduling delayed listen\n");
 486                         schedule_work(&wil->p2p.delayed_listen_work);
 487                 }
 488         } else {
 489                 wil_err(wil, "SCAN_COMPLETE while not scanning\n");
 490         }
 491         mutex_unlock(&wil->p2p_wdev_mutex);
 492 }
 493
 494 static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len)
 495 {
 496         struct net_device *ndev = wil_to_ndev(wil);
 497         struct wireless_dev *wdev = wil->wdev;
 498         struct wmi_connect_event *evt = d;
 499         int ch; /* channel number */
 500         struct station_info sinfo;
 501         u8 *assoc_req_ie, *assoc_resp_ie;
 502         size_t assoc_req_ielen, assoc_resp_ielen;
 503         /* capinfo(u16) + listen_interval(u16) + IEs */
 504         const size_t assoc_req_ie_offset = sizeof(u16) * 2;
 505         /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */
 506         const size_t assoc_resp_ie_offset = sizeof(u16) * 3;
 507         int rc;
 508
 509         if (len < sizeof(*evt)) {
 510                 wil_err(wil, "Connect event too short : %d bytes\n", len);
 511                 return;
 512         }
 513         if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len +
 514                    evt->assoc_resp_len) {
 515                 wil_err(wil,
 516                         "Connect event corrupted : %d != %d + %d + %d + %d\n",
 517                         len, (int)sizeof(*evt), evt->beacon_ie_len,
 518                         evt->assoc_req_len, evt->assoc_resp_len);
 519                 return;
 520         }
 521         if (evt->cid >= WIL6210_MAX_CID) {
 522                 wil_err(wil, "Connect CID invalid : %d\n", evt->cid);
 523                 return;
 524         }
 525
 526         ch = evt->channel + 1;
 527         wil_info(wil, "Connect %pM channel [%d] cid %d aid %d\n",
 528                  evt->bssid, ch, evt->cid, evt->aid);
 529         wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1,
 530                          evt->assoc_info, len - sizeof(*evt), true);
 531
 532         /* figure out IE's */
 533         assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len +
 534                                         assoc_req_ie_offset];
 535         assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset;
 536         if (evt->assoc_req_len <= assoc_req_ie_offset) {
 537                 assoc_req_ie = NULL;
 538                 assoc_req_ielen = 0;
 539         }
 540
 541         assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len +
 542                                          evt->assoc_req_len +
 543                                          assoc_resp_ie_offset];
 544         assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset;
 545         if (evt->assoc_resp_len <= assoc_resp_ie_offset) {
 546                 assoc_resp_ie = NULL;
 547                 assoc_resp_ielen = 0;
 548         }
 549
 550         if (test_bit(wil_status_resetting, wil->status) ||
 551             !test_bit(wil_status_fwready, wil->status)) {
 552                 wil_err(wil, "status_resetting, cancel connect event, CID %d\n",
 553                         evt->cid);
 554                 /* no need for cleanup, wil_reset will do that */
 555                 return;
 556         }
 557
 558         mutex_lock(&wil->mutex);
 559
 560         if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
 561             (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
 562                 if (!test_bit(wil_status_fwconnecting, wil->status)) {
 563                         wil_err(wil, "Not in connecting state\n");
 564                         mutex_unlock(&wil->mutex);
 565                         return;
 566                 }
 567                 del_timer_sync(&wil->connect_timer);
 568         } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
 569                    (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
 570                 if (wil->sta[evt->cid].status != wil_sta_unused) {
 571                         wil_err(wil, "AP: Invalid status %d for CID %d\n",
 572                                 wil->sta[evt->cid].status, evt->cid);
 573                         mutex_unlock(&wil->mutex);
 574                         return;
 575                 }
 576         }
 577
 578         /* FIXME FW can transmit only ucast frames to peer */
 579         /* FIXME real ring_id instead of hard coded 0 */
 580         ether_addr_copy(wil->sta[evt->cid].addr, evt->bssid);
 581         wil->sta[evt->cid].status = wil_sta_conn_pending;
 582
 583         rc = wil_tx_init(wil, evt->cid);
 584         if (rc) {
 585                 wil_err(wil, "config tx vring failed for CID %d, rc (%d)\n",
 586                         evt->cid, rc);
 587                 wmi_disconnect_sta(wil, wil->sta[evt->cid].addr,
 588                                    WLAN_REASON_UNSPECIFIED, false, false);
 589         } else {
 590                 wil_info(wil, "successful connection to CID %d\n", evt->cid);
 591         }
 592
 593         if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
 594             (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
 595                 if (rc) {
 596                         netif_carrier_off(ndev);
 597                         wil6210_bus_request(wil, WIL_DEFAULT_BUS_REQUEST_KBPS);
 598                         wil_err(wil, "cfg80211_connect_result with failure\n");
 599                         cfg80211_connect_result(ndev, evt->bssid, NULL, 0,
 600                                                 NULL, 0,
 601                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
 602                                                 GFP_KERNEL);
 603                         goto out;
 604                 } else {
 605                         struct wiphy *wiphy = wil_to_wiphy(wil);
 606
 607                         cfg80211_ref_bss(wiphy, wil->bss);
 608                         cfg80211_connect_bss(ndev, evt->bssid, wil->bss,
 609                                              assoc_req_ie, assoc_req_ielen,
 610                                              assoc_resp_ie, assoc_resp_ielen,
 611                                              WLAN_STATUS_SUCCESS, GFP_KERNEL,
 612                                              NL80211_TIMEOUT_UNSPECIFIED);
 613                 }
 614                 wil->bss = NULL;
 615         } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
 616                    (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
 617                 if (rc) {
 618                         if (disable_ap_sme)
 619                                 /* notify new_sta has failed */
 620                                 cfg80211_del_sta(ndev, evt->bssid, GFP_KERNEL);
 621                         goto out;
 622                 }
 623
 624                 memset(&sinfo, 0, sizeof(sinfo));
 625
 626                 sinfo.generation = wil->sinfo_gen++;
 627
 628                 if (assoc_req_ie) {
 629                         sinfo.assoc_req_ies = assoc_req_ie;
 630                         sinfo.assoc_req_ies_len = assoc_req_ielen;
 631                 }
 632
 633                 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL);
 634         } else {
 635                 wil_err(wil, "unhandled iftype %d for CID %d\n", wdev->iftype,
 636                         evt->cid);
 637                 goto out;
 638         }
 639
 640         wil->sta[evt->cid].status = wil_sta_connected;
 641         wil->sta[evt->cid].aid = evt->aid;
 642         set_bit(wil_status_fwconnected, wil->status);
 643         wil_update_net_queues_bh(wil, NULL, false);
 644
 645 out:
 646         if (rc)
 647                 wil->sta[evt->cid].status = wil_sta_unused;
 648         clear_bit(wil_status_fwconnecting, wil->status);
 649         mutex_unlock(&wil->mutex);
 650 }
 651
 652 static void wmi_evt_disconnect(struct wil6210_priv *wil, int id,
 653                                void *d, int len)
 654 {
 655         struct wmi_disconnect_event *evt = d;
 656         u16 reason_code = le16_to_cpu(evt->protocol_reason_status);
 657
 658         wil_info(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
 659                  evt->bssid, reason_code, evt->disconnect_reason);
 660
 661         wil->sinfo_gen++;
 662
 663         if (test_bit(wil_status_resetting, wil->status) ||
 664             !test_bit(wil_status_fwready, wil->status)) {
 665                 wil_err(wil, "status_resetting, cancel disconnect event\n");
 666                 /* no need for cleanup, wil_reset will do that */
 667                 return;
 668         }
 669
 670         mutex_lock(&wil->mutex);
 671         wil6210_disconnect(wil, evt->bssid, reason_code, true);
 672         mutex_unlock(&wil->mutex);
 673 }
 674
 675 /*
 676  * Firmware reports EAPOL frame using WME event.
 677  * Reconstruct Ethernet frame and deliver it via normal Rx
 678  */
 679 static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id,
 680                              void *d, int len)
 681 {
 682         struct net_device *ndev = wil_to_ndev(wil);
 683         struct wmi_eapol_rx_event *evt = d;
 684         u16 eapol_len = le16_to_cpu(evt->eapol_len);
 685         int sz = eapol_len + ETH_HLEN;
 686         struct sk_buff *skb;
 687         struct ethhdr *eth;
 688         int cid;
 689         struct wil_net_stats *stats = NULL;
 690
 691         wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len,
 692                     evt->src_mac);
 693
 694         cid = wil_find_cid(wil, evt->src_mac);
 695         if (cid >= 0)
 696                 stats = &wil->sta[cid].stats;
 697
 698         if (eapol_len > 196) { /* TODO: revisit size limit */
 699                 wil_err(wil, "EAPOL too large\n");
 700                 return;
 701         }
 702
 703         skb = alloc_skb(sz, GFP_KERNEL);
 704         if (!skb) {
 705                 wil_err(wil, "Failed to allocate skb\n");
 706                 return;
 707         }
 708
 709         eth = skb_put(skb, ETH_HLEN);
 710         ether_addr_copy(eth->h_dest, ndev->dev_addr);
 711         ether_addr_copy(eth->h_source, evt->src_mac);
 712         eth->h_proto = cpu_to_be16(ETH_P_PAE);
 713         skb_put_data(skb, evt->eapol, eapol_len);
 714         skb->protocol = eth_type_trans(skb, ndev);
 715         if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) {
 716                 ndev->stats.rx_packets++;
 717                 ndev->stats.rx_bytes += sz;
 718                 if (stats) {
 719                         stats->rx_packets++;
 720                         stats->rx_bytes += sz;
 721                 }
 722         } else {
 723                 ndev->stats.rx_dropped++;
 724                 if (stats)
 725                         stats->rx_dropped++;
 726         }
 727 }
 728
 729 static void wmi_evt_vring_en(struct wil6210_priv *wil, int id, void *d, int len)
 730 {
 731         struct wmi_vring_en_event *evt = d;
 732         u8 vri = evt->vring_index;
 733         struct wireless_dev *wdev = wil_to_wdev(wil);
 734
 735         wil_dbg_wmi(wil, "Enable vring %d\n", vri);
 736
 737         if (vri >= ARRAY_SIZE(wil->vring_tx)) {
 738                 wil_err(wil, "Enable for invalid vring %d\n", vri);
 739                 return;
 740         }
 741
 742         if (wdev->iftype != NL80211_IFTYPE_AP || !disable_ap_sme)
 743                 /* in AP mode with disable_ap_sme, this is done by
 744                  * wil_cfg80211_change_station()
 745                  */
 746                 wil->vring_tx_data[vri].dot1x_open = true;
 747         if (vri == wil->bcast_vring) /* no BA for bcast */
 748                 return;
 749         if (agg_wsize >= 0)
 750                 wil_addba_tx_request(wil, vri, agg_wsize);
 751 }
 752
 753 static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d,
 754                               int len)
 755 {
 756         struct wmi_ba_status_event *evt = d;
 757         struct vring_tx_data *txdata;
 758
 759         wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n",
 760                     evt->ringid,
 761                     evt->status == WMI_BA_AGREED ? "OK" : "N/A",
 762                     evt->agg_wsize, __le16_to_cpu(evt->ba_timeout),
 763                     evt->amsdu ? "+" : "-");
 764
 765         if (evt->ringid >= WIL6210_MAX_TX_RINGS) {
 766                 wil_err(wil, "invalid ring id %d\n", evt->ringid);
 767                 return;
 768         }
 769
 770         if (evt->status != WMI_BA_AGREED) {
 771                 evt->ba_timeout = 0;
 772                 evt->agg_wsize = 0;
 773                 evt->amsdu = 0;
 774         }
 775
 776         txdata = &wil->vring_tx_data[evt->ringid];
 777
 778         txdata->agg_timeout = le16_to_cpu(evt->ba_timeout);
 779         txdata->agg_wsize = evt->agg_wsize;
 780         txdata->agg_amsdu = evt->amsdu;
 781         txdata->addba_in_progress = false;
 782 }
 783
 784 static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d,
 785                                  int len)
 786 {
 787         struct wmi_rcp_addba_req_event *evt = d;
 788
 789         wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token,
 790                              evt->ba_param_set, evt->ba_timeout,
 791                              evt->ba_seq_ctrl);
 792 }
 793
 794 static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len)
 795 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
 796 {
 797         struct wmi_delba_event *evt = d;
 798         u8 cid, tid;
 799         u16 reason = __le16_to_cpu(evt->reason);
 800         struct wil_sta_info *sta;
 801         struct wil_tid_ampdu_rx *r;
 802
 803         might_sleep();
 804         parse_cidxtid(evt->cidxtid, &cid, &tid);
 805         wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n",
 806                     cid, tid,
 807                     evt->from_initiator ? "originator" : "recipient",
 808                     reason);
 809         if (!evt->from_initiator) {
 810                 int i;
 811                 /* find Tx vring it belongs to */
 812                 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) {
 813                         if ((wil->vring2cid_tid[i][0] == cid) &&
 814                             (wil->vring2cid_tid[i][1] == tid)) {
 815                                 struct vring_tx_data *txdata =
 816                                         &wil->vring_tx_data[i];
 817
 818                                 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i);
 819                                 txdata->agg_timeout = 0;
 820                                 txdata->agg_wsize = 0;
 821                                 txdata->addba_in_progress = false;
 822
 823                                 break; /* max. 1 matching ring */
 824                         }
 825                 }
 826                 if (i >= ARRAY_SIZE(wil->vring2cid_tid))
 827                         wil_err(wil, "DELBA: unable to find Tx vring\n");
 828                 return;
 829         }
 830
 831         sta = &wil->sta[cid];
 832
 833         spin_lock_bh(&sta->tid_rx_lock);
 834
 835         r = sta->tid_rx[tid];
 836         sta->tid_rx[tid] = NULL;
 837         wil_tid_ampdu_rx_free(wil, r);
 838
 839         spin_unlock_bh(&sta->tid_rx_lock);
 840 }
 841
 842 /**
 843  * Some events are ignored for purpose; and need not be interpreted as
 844  * "unhandled events"
 845  */
 846 static void wmi_evt_ignore(struct wil6210_priv *wil, int id, void *d, int len)
 847 {
 848         wil_dbg_wmi(wil, "Ignore event 0x%04x len %d\n", id, len);
 849 }
 850
 851 static const struct {
 852         int eventid;
 853         void (*handler)(struct wil6210_priv *wil, int eventid,
 854                         void *data, int data_len);
 855 } wmi_evt_handlers[] = {
 856         {WMI_READY_EVENTID,             wmi_evt_ready},
 857         {WMI_FW_READY_EVENTID,                  wmi_evt_ignore},
 858         {WMI_RX_MGMT_PACKET_EVENTID,    wmi_evt_rx_mgmt},
 859         {WMI_TX_MGMT_PACKET_EVENTID,            wmi_evt_tx_mgmt},
 860         {WMI_SCAN_COMPLETE_EVENTID,     wmi_evt_scan_complete},
 861         {WMI_CONNECT_EVENTID,           wmi_evt_connect},
 862         {WMI_DISCONNECT_EVENTID,        wmi_evt_disconnect},
 863         {WMI_EAPOL_RX_EVENTID,          wmi_evt_eapol_rx},
 864         {WMI_BA_STATUS_EVENTID,         wmi_evt_ba_status},
 865         {WMI_RCP_ADDBA_REQ_EVENTID,     wmi_evt_addba_rx_req},
 866         {WMI_DELBA_EVENTID,             wmi_evt_delba},
 867         {WMI_VRING_EN_EVENTID,          wmi_evt_vring_en},
 868         {WMI_DATA_PORT_OPEN_EVENTID,            wmi_evt_ignore},
 869 };
 870
 871 /*
 872  * Run in IRQ context
 873  * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev
 874  * that will be eventually handled by the @wmi_event_worker in the thread
 875  * context of thread "wil6210_wmi"
 876  */
 877 void wmi_recv_cmd(struct wil6210_priv *wil)
 878 {
 879         struct wil6210_mbox_ring_desc d_tail;
 880         struct wil6210_mbox_hdr hdr;
 881         struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx;
 882         struct pending_wmi_event *evt;
 883         u8 *cmd;
 884         void __iomem *src;
 885         ulong flags;
 886         unsigned n;
 887         unsigned int num_immed_reply = 0;
 888
 889         if (!test_bit(wil_status_mbox_ready, wil->status)) {
 890                 wil_err(wil, "Reset in progress. Cannot handle WMI event\n");
 891                 return;
 892         }
 893
 894         if (test_bit(wil_status_suspended, wil->status)) {
 895                 wil_err(wil, "suspended. cannot handle WMI event\n");
 896                 return;
 897         }
 898
 899         for (n = 0;; n++) {
 900                 u16 len;
 901                 bool q;
 902                 bool immed_reply = false;
 903
 904                 r->head = wil_r(wil, RGF_MBOX +
 905                                 offsetof(struct wil6210_mbox_ctl, rx.head));
 906                 if (r->tail == r->head)
 907                         break;
 908
 909                 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n",
 910                             r->head, r->tail);
 911                 /* read cmd descriptor from tail */
 912                 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail),
 913                                      sizeof(struct wil6210_mbox_ring_desc));
 914                 if (d_tail.sync == 0) {
 915                         wil_err(wil, "Mbox evt not owned by FW?\n");
 916                         break;
 917                 }
 918
 919                 /* read cmd header from descriptor */
 920                 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) {
 921                         wil_err(wil, "Mbox evt at 0x%08x?\n",
 922                                 le32_to_cpu(d_tail.addr));
 923                         break;
 924                 }
 925                 len = le16_to_cpu(hdr.len);
 926                 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n",
 927                             le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type),
 928                             hdr.flags);
 929
 930                 /* read cmd buffer from descriptor */
 931                 src = wmi_buffer(wil, d_tail.addr) +
 932                       sizeof(struct wil6210_mbox_hdr);
 933                 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event,
 934                                              event.wmi) + len, 4),
 935                               GFP_KERNEL);
 936                 if (!evt)
 937                         break;
 938
 939                 evt->event.hdr = hdr;
 940                 cmd = (void *)&evt->event.wmi;
 941                 wil_memcpy_fromio_32(cmd, src, len);
 942                 /* mark entry as empty */
 943                 wil_w(wil, r->tail +
 944                       offsetof(struct wil6210_mbox_ring_desc, sync), 0);
 945                 /* indicate */
 946                 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) &&
 947                     (len >= sizeof(struct wmi_cmd_hdr))) {
 948                         struct wmi_cmd_hdr *wmi = &evt->event.wmi;
 949                         u16 id = le16_to_cpu(wmi->command_id);
 950                         u32 tstamp = le32_to_cpu(wmi->fw_timestamp);
 951                         if (test_bit(wil_status_resuming, wil->status)) {
 952                                 if (id == WMI_TRAFFIC_RESUME_EVENTID)
 953                                         clear_bit(wil_status_resuming,
 954                                                   wil->status);
 955                                 else
 956                                         wil_err(wil,
 957                                                 "WMI evt %d while resuming\n",
 958                                                 id);
 959                         }
 960                         spin_lock_irqsave(&wil->wmi_ev_lock, flags);
 961                         if (wil->reply_id && wil->reply_id == id) {
 962                                 if (wil->reply_buf) {
 963                                         memcpy(wil->reply_buf, wmi,
 964                                                min(len, wil->reply_size));
 965                                         immed_reply = true;
 966                                 }
 967                                 if (id == WMI_TRAFFIC_SUSPEND_EVENTID) {
 968                                         wil_dbg_wmi(wil,
 969                                                     "set suspend_resp_rcvd\n");
 970                                         wil->suspend_resp_rcvd = true;
 971                                 }
 972                         }
 973                         spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
 974
 975                         wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n",
 976                                     id, wmi->mid, tstamp);
 977                         trace_wil6210_wmi_event(wmi, &wmi[1],
 978                                                 len - sizeof(*wmi));
 979                 }
 980                 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1,
 981                                  &evt->event.hdr, sizeof(hdr) + len, true);
 982
 983                 /* advance tail */
 984                 r->tail = r->base + ((r->tail - r->base +
 985                           sizeof(struct wil6210_mbox_ring_desc)) % r->size);
 986                 wil_w(wil, RGF_MBOX +
 987                       offsetof(struct wil6210_mbox_ctl, rx.tail), r->tail);
 988
 989                 if (immed_reply) {
 990                         wil_dbg_wmi(wil, "recv_cmd: Complete WMI 0x%04x\n",
 991                                     wil->reply_id);
 992                         kfree(evt);
 993                         num_immed_reply++;
 994                         complete(&wil->wmi_call);
 995                 } else {
 996                         /* add to the pending list */
 997                         spin_lock_irqsave(&wil->wmi_ev_lock, flags);
 998                         list_add_tail(&evt->list, &wil->pending_wmi_ev);
 999                         spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1000                         q = queue_work(wil->wmi_wq, &wil->wmi_event_worker);
1001                         wil_dbg_wmi(wil, "queue_work -> %d\n", q);
1002                 }
1003         }
1004         /* normally, 1 event per IRQ should be processed */
1005         wil_dbg_wmi(wil, "recv_cmd: -> %d events queued, %d completed\n",
1006                     n - num_immed_reply, num_immed_reply);
1007 }
1008
1009 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len,
1010              u16 reply_id, void *reply, u8 reply_size, int to_msec)
1011 {
1012         int rc;
1013         unsigned long remain;
1014         ulong flags;
1015
1016         mutex_lock(&wil->wmi_mutex);
1017
1018         spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1019         wil->reply_id = reply_id;
1020         wil->reply_buf = reply;
1021         wil->reply_size = reply_size;
1022         reinit_completion(&wil->wmi_call);
1023         spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1024
1025         rc = __wmi_send(wil, cmdid, buf, len);
1026         if (rc)
1027                 goto out;
1028
1029         remain = wait_for_completion_timeout(&wil->wmi_call,
1030                                              msecs_to_jiffies(to_msec));
1031         if (0 == remain) {
1032                 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n",
1033                         cmdid, reply_id, to_msec);
1034                 rc = -ETIME;
1035         } else {
1036                 wil_dbg_wmi(wil,
1037                             "wmi_call(0x%04x->0x%04x) completed in %d msec\n",
1038                             cmdid, reply_id,
1039                             to_msec - jiffies_to_msecs(remain));
1040         }
1041
1042 out:
1043         spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1044         wil->reply_id = 0;
1045         wil->reply_buf = NULL;
1046         wil->reply_size = 0;
1047         spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1048
1049         mutex_unlock(&wil->wmi_mutex);
1050
1051         return rc;
1052 }
1053
1054 int wmi_echo(struct wil6210_priv *wil)
1055 {
1056         struct wmi_echo_cmd cmd = {
1057                 .value = cpu_to_le32(0x12345678),
1058         };
1059
1060         return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd),
1061                         WMI_ECHO_RSP_EVENTID, NULL, 0, 50);
1062 }
1063
1064 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr)
1065 {
1066         struct wmi_set_mac_address_cmd cmd;
1067
1068         ether_addr_copy(cmd.mac, addr);
1069
1070         wil_dbg_wmi(wil, "Set MAC %pM\n", addr);
1071
1072         return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd));
1073 }
1074
1075 int wmi_led_cfg(struct wil6210_priv *wil, bool enable)
1076 {
1077         int rc = 0;
1078         struct wmi_led_cfg_cmd cmd = {
1079                 .led_mode = enable,
1080                 .id = led_id,
1081                 .slow_blink_cfg.blink_on =
1082                         cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].on_ms),
1083                 .slow_blink_cfg.blink_off =
1084                         cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].off_ms),
1085                 .medium_blink_cfg.blink_on =
1086                         cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].on_ms),
1087                 .medium_blink_cfg.blink_off =
1088                         cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].off_ms),
1089                 .fast_blink_cfg.blink_on =
1090                         cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].on_ms),
1091                 .fast_blink_cfg.blink_off =
1092                         cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].off_ms),
1093                 .led_polarity = led_polarity,
1094         };
1095         struct {
1096                 struct wmi_cmd_hdr wmi;
1097                 struct wmi_led_cfg_done_event evt;
1098         } __packed reply;
1099
1100         if (led_id == WIL_LED_INVALID_ID)
1101                 goto out;
1102
1103         if (led_id > WIL_LED_MAX_ID) {
1104                 wil_err(wil, "Invalid led id %d\n", led_id);
1105                 rc = -EINVAL;
1106                 goto out;
1107         }
1108
1109         wil_dbg_wmi(wil,
1110                     "%s led %d\n",
1111                     enable ? "enabling" : "disabling", led_id);
1112
1113         rc = wmi_call(wil, WMI_LED_CFG_CMDID, &cmd, sizeof(cmd),
1114                       WMI_LED_CFG_DONE_EVENTID, &reply, sizeof(reply),
1115                       100);
1116         if (rc)
1117                 goto out;
1118
1119         if (reply.evt.status) {
1120                 wil_err(wil, "led %d cfg failed with status %d\n",
1121                         led_id, le32_to_cpu(reply.evt.status));
1122                 rc = -EINVAL;
1123         }
1124
1125 out:
1126         return rc;
1127 }
1128
1129 int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype,
1130                   u8 chan, u8 hidden_ssid, u8 is_go)
1131 {
1132         int rc;
1133
1134         struct wmi_pcp_start_cmd cmd = {
1135                 .bcon_interval = cpu_to_le16(bi),
1136                 .network_type = wmi_nettype,
1137                 .disable_sec_offload = 1,
1138                 .channel = chan - 1,
1139                 .pcp_max_assoc_sta = max_assoc_sta,
1140                 .hidden_ssid = hidden_ssid,
1141                 .is_go = is_go,
1142                 .disable_ap_sme = disable_ap_sme,
1143                 .abft_len = wil->abft_len,
1144         };
1145         struct {
1146                 struct wmi_cmd_hdr wmi;
1147                 struct wmi_pcp_started_event evt;
1148         } __packed reply;
1149
1150         if (!wil->privacy)
1151                 cmd.disable_sec = 1;
1152
1153         if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) ||
1154             (cmd.pcp_max_assoc_sta <= 0)) {
1155                 wil_info(wil,
1156                          "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n",
1157                          max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID);
1158                 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID;
1159         }
1160
1161         if (disable_ap_sme &&
1162             !test_bit(WMI_FW_CAPABILITY_DISABLE_AP_SME,
1163                       wil->fw_capabilities)) {
1164                 wil_err(wil, "disable_ap_sme not supported by FW\n");
1165                 return -EOPNOTSUPP;
1166         }
1167
1168         /*
1169          * Processing time may be huge, in case of secure AP it takes about
1170          * 3500ms for FW to start AP
1171          */
1172         rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd),
1173                       WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000);
1174         if (rc)
1175                 return rc;
1176
1177         if (reply.evt.status != WMI_FW_STATUS_SUCCESS)
1178                 rc = -EINVAL;
1179
1180         if (wmi_nettype != WMI_NETTYPE_P2P)
1181                 /* Don't fail due to error in the led configuration */
1182                 wmi_led_cfg(wil, true);
1183
1184         return rc;
1185 }
1186
1187 int wmi_pcp_stop(struct wil6210_priv *wil)
1188 {
1189         int rc;
1190
1191         rc = wmi_led_cfg(wil, false);
1192         if (rc)
1193                 return rc;
1194
1195         return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0,
1196                         WMI_PCP_STOPPED_EVENTID, NULL, 0, 20);
1197 }
1198
1199 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid)
1200 {
1201         struct wmi_set_ssid_cmd cmd = {
1202                 .ssid_len = cpu_to_le32(ssid_len),
1203         };
1204
1205         if (ssid_len > sizeof(cmd.ssid))
1206                 return -EINVAL;
1207
1208         memcpy(cmd.ssid, ssid, ssid_len);
1209
1210         return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd));
1211 }
1212
1213 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid)
1214 {
1215         int rc;
1216         struct {
1217                 struct wmi_cmd_hdr wmi;
1218                 struct wmi_set_ssid_cmd cmd;
1219         } __packed reply;
1220         int len; /* reply.cmd.ssid_len in CPU order */
1221
1222         rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID,
1223                       &reply, sizeof(reply), 20);
1224         if (rc)
1225                 return rc;
1226
1227         len = le32_to_cpu(reply.cmd.ssid_len);
1228         if (len > sizeof(reply.cmd.ssid))
1229                 return -EINVAL;
1230
1231         *ssid_len = len;
1232         memcpy(ssid, reply.cmd.ssid, len);
1233
1234         return 0;
1235 }
1236
1237 int wmi_set_channel(struct wil6210_priv *wil, int channel)
1238 {
1239         struct wmi_set_pcp_channel_cmd cmd = {
1240                 .channel = channel - 1,
1241         };
1242
1243         return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd));
1244 }
1245
1246 int wmi_get_channel(struct wil6210_priv *wil, int *channel)
1247 {
1248         int rc;
1249         struct {
1250                 struct wmi_cmd_hdr wmi;
1251                 struct wmi_set_pcp_channel_cmd cmd;
1252         } __packed reply;
1253
1254         rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0,
1255                       WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20);
1256         if (rc)
1257                 return rc;
1258
1259         if (reply.cmd.channel > 3)
1260                 return -EINVAL;
1261
1262         *channel = reply.cmd.channel + 1;
1263
1264         return 0;
1265 }
1266
1267 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel, int bi)
1268 {
1269         int rc;
1270         struct wmi_p2p_cfg_cmd cmd = {
1271                 .discovery_mode = WMI_DISCOVERY_MODE_PEER2PEER,
1272                 .bcon_interval = cpu_to_le16(bi),
1273                 .channel = channel - 1,
1274         };
1275         struct {
1276                 struct wmi_cmd_hdr wmi;
1277                 struct wmi_p2p_cfg_done_event evt;
1278         } __packed reply;
1279
1280         wil_dbg_wmi(wil, "sending WMI_P2P_CFG_CMDID\n");
1281
1282         rc = wmi_call(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd),
1283                       WMI_P2P_CFG_DONE_EVENTID, &reply, sizeof(reply), 300);
1284         if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1285                 wil_err(wil, "P2P_CFG failed. status %d\n", reply.evt.status);
1286                 rc = -EINVAL;
1287         }
1288
1289         return rc;
1290 }
1291
1292 int wmi_start_listen(struct wil6210_priv *wil)
1293 {
1294         int rc;
1295         struct {
1296                 struct wmi_cmd_hdr wmi;
1297                 struct wmi_listen_started_event evt;
1298         } __packed reply;
1299
1300         wil_dbg_wmi(wil, "sending WMI_START_LISTEN_CMDID\n");
1301
1302         rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1303                       WMI_LISTEN_STARTED_EVENTID, &reply, sizeof(reply), 300);
1304         if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1305                 wil_err(wil, "device failed to start listen. status %d\n",
1306                         reply.evt.status);
1307                 rc = -EINVAL;
1308         }
1309
1310         return rc;
1311 }
1312
1313 int wmi_start_search(struct wil6210_priv *wil)
1314 {
1315         int rc;
1316         struct {
1317                 struct wmi_cmd_hdr wmi;
1318                 struct wmi_search_started_event evt;
1319         } __packed reply;
1320
1321         wil_dbg_wmi(wil, "sending WMI_START_SEARCH_CMDID\n");
1322
1323         rc = wmi_call(wil, WMI_START_SEARCH_CMDID, NULL, 0,
1324                       WMI_SEARCH_STARTED_EVENTID, &reply, sizeof(reply), 300);
1325         if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1326                 wil_err(wil, "device failed to start search. status %d\n",
1327                         reply.evt.status);
1328                 rc = -EINVAL;
1329         }
1330
1331         return rc;
1332 }
1333
1334 int wmi_stop_discovery(struct wil6210_priv *wil)
1335 {
1336         int rc;
1337
1338         wil_dbg_wmi(wil, "sending WMI_DISCOVERY_STOP_CMDID\n");
1339
1340         rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1341                       WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 100);
1342
1343         if (rc)
1344                 wil_err(wil, "Failed to stop discovery\n");
1345
1346         return rc;
1347 }
1348
1349 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index,
1350                        const void *mac_addr, int key_usage)
1351 {
1352         struct wmi_delete_cipher_key_cmd cmd = {
1353                 .key_index = key_index,
1354         };
1355
1356         if (mac_addr)
1357                 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1358
1359         return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1360 }
1361
1362 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index,
1363                        const void *mac_addr, int key_len, const void *key,
1364                        int key_usage)
1365 {
1366         struct wmi_add_cipher_key_cmd cmd = {
1367                 .key_index = key_index,
1368                 .key_usage = key_usage,
1369                 .key_len = key_len,
1370         };
1371
1372         if (!key || (key_len > sizeof(cmd.key)))
1373                 return -EINVAL;
1374
1375         memcpy(cmd.key, key, key_len);
1376         if (mac_addr)
1377                 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1378
1379         return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1380 }
1381
1382 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie)
1383 {
1384         static const char *const names[] = {
1385                 [WMI_FRAME_BEACON]      = "BEACON",
1386                 [WMI_FRAME_PROBE_REQ]   = "PROBE_REQ",
1387                 [WMI_FRAME_PROBE_RESP]  = "WMI_FRAME_PROBE_RESP",
1388                 [WMI_FRAME_ASSOC_REQ]   = "WMI_FRAME_ASSOC_REQ",
1389                 [WMI_FRAME_ASSOC_RESP]  = "WMI_FRAME_ASSOC_RESP",
1390         };
1391         int rc;
1392         u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len;
1393         struct wmi_set_appie_cmd *cmd;
1394
1395         if (len < ie_len) {
1396                 rc = -EINVAL;
1397                 goto out;
1398         }
1399
1400         cmd = kzalloc(len, GFP_KERNEL);
1401         if (!cmd) {
1402                 rc = -ENOMEM;
1403                 goto out;
1404         }
1405         if (!ie)
1406                 ie_len = 0;
1407
1408         cmd->mgmt_frm_type = type;
1409         /* BUG: FW API define ieLen as u8. Will fix FW */
1410         cmd->ie_len = cpu_to_le16(ie_len);
1411         memcpy(cmd->ie_info, ie, ie_len);
1412         rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len);
1413         kfree(cmd);
1414 out:
1415         if (rc) {
1416                 const char *name = type < ARRAY_SIZE(names) ?
1417                                    names[type] : "??";
1418                 wil_err(wil, "set_ie(%d %s) failed : %d\n", type, name, rc);
1419         }
1420
1421         return rc;
1422 }
1423
1424 /**
1425  * wmi_rxon - turn radio on/off
1426  * @on:         turn on if true, off otherwise
1427  *
1428  * Only switch radio. Channel should be set separately.
1429  * No timeout for rxon - radio turned on forever unless some other call
1430  * turns it off
1431  */
1432 int wmi_rxon(struct wil6210_priv *wil, bool on)
1433 {
1434         int rc;
1435         struct {
1436                 struct wmi_cmd_hdr wmi;
1437                 struct wmi_listen_started_event evt;
1438         } __packed reply;
1439
1440         wil_info(wil, "(%s)\n", on ? "on" : "off");
1441
1442         if (on) {
1443                 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1444                               WMI_LISTEN_STARTED_EVENTID,
1445                               &reply, sizeof(reply), 100);
1446                 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS))
1447                         rc = -EINVAL;
1448         } else {
1449                 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1450                               WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20);
1451         }
1452
1453         return rc;
1454 }
1455
1456 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring)
1457 {
1458         struct wireless_dev *wdev = wil->wdev;
1459         struct net_device *ndev = wil_to_ndev(wil);
1460         struct wmi_cfg_rx_chain_cmd cmd = {
1461                 .action = WMI_RX_CHAIN_ADD,
1462                 .rx_sw_ring = {
1463                         .max_mpdu_size = cpu_to_le16(
1464                                 wil_mtu2macbuf(wil->rx_buf_len)),
1465                         .ring_mem_base = cpu_to_le64(vring->pa),
1466                         .ring_size = cpu_to_le16(vring->size),
1467                 },
1468                 .mid = 0, /* TODO - what is it? */
1469                 .decap_trans_type = WMI_DECAP_TYPE_802_3,
1470                 .reorder_type = WMI_RX_SW_REORDER,
1471                 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh),
1472         };
1473         struct {
1474                 struct wmi_cmd_hdr wmi;
1475                 struct wmi_cfg_rx_chain_done_event evt;
1476         } __packed evt;
1477         int rc;
1478
1479         if (wdev->iftype == NL80211_IFTYPE_MONITOR) {
1480                 struct ieee80211_channel *ch = wdev->preset_chandef.chan;
1481
1482                 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON);
1483                 if (ch)
1484                         cmd.sniffer_cfg.channel = ch->hw_value - 1;
1485                 cmd.sniffer_cfg.phy_info_mode =
1486                         cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP);
1487                 cmd.sniffer_cfg.phy_support =
1488                         cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL)
1489                                     ? WMI_SNIFFER_CP : WMI_SNIFFER_BOTH_PHYS);
1490         } else {
1491                 /* Initialize offload (in non-sniffer mode).
1492                  * Linux IP stack always calculates IP checksum
1493                  * HW always calculate TCP/UDP checksum
1494                  */
1495                 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS);
1496         }
1497
1498         if (rx_align_2)
1499                 cmd.l2_802_3_offload_ctrl |=
1500                                 L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK;
1501
1502         /* typical time for secure PCP is 840ms */
1503         rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd),
1504                       WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000);
1505         if (rc)
1506                 return rc;
1507
1508         vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr);
1509
1510         wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n",
1511                      le32_to_cpu(evt.evt.status), vring->hwtail);
1512
1513         if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS)
1514                 rc = -EINVAL;
1515
1516         return rc;
1517 }
1518
1519 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf)
1520 {
1521         int rc;
1522         struct wmi_temp_sense_cmd cmd = {
1523                 .measure_baseband_en = cpu_to_le32(!!t_bb),
1524                 .measure_rf_en = cpu_to_le32(!!t_rf),
1525                 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW),
1526         };
1527         struct {
1528                 struct wmi_cmd_hdr wmi;
1529                 struct wmi_temp_sense_done_event evt;
1530         } __packed reply;
1531
1532         rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd),
1533                       WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100);
1534         if (rc)
1535                 return rc;
1536
1537         if (t_bb)
1538                 *t_bb = le32_to_cpu(reply.evt.baseband_t1000);
1539         if (t_rf)
1540                 *t_rf = le32_to_cpu(reply.evt.rf_t1000);
1541
1542         return 0;
1543 }
1544
1545 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac,
1546                        u16 reason, bool full_disconnect, bool del_sta)
1547 {
1548         int rc;
1549         u16 reason_code;
1550         struct wmi_disconnect_sta_cmd disc_sta_cmd = {
1551                 .disconnect_reason = cpu_to_le16(reason),
1552         };
1553         struct wmi_del_sta_cmd del_sta_cmd = {
1554                 .disconnect_reason = cpu_to_le16(reason),
1555         };
1556         struct {
1557                 struct wmi_cmd_hdr wmi;
1558                 struct wmi_disconnect_event evt;
1559         } __packed reply;
1560
1561         wil_dbg_wmi(wil, "disconnect_sta: (%pM, reason %d)\n", mac, reason);
1562
1563         wil->locally_generated_disc = true;
1564         if (del_sta) {
1565                 ether_addr_copy(del_sta_cmd.dst_mac, mac);
1566                 rc = wmi_call(wil, WMI_DEL_STA_CMDID, &del_sta_cmd,
1567                               sizeof(del_sta_cmd), WMI_DISCONNECT_EVENTID,
1568                               &reply, sizeof(reply), 1000);
1569         } else {
1570                 ether_addr_copy(disc_sta_cmd.dst_mac, mac);
1571                 rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, &disc_sta_cmd,
1572                               sizeof(disc_sta_cmd), WMI_DISCONNECT_EVENTID,
1573                               &reply, sizeof(reply), 1000);
1574         }
1575         /* failure to disconnect in reasonable time treated as FW error */
1576         if (rc) {
1577                 wil_fw_error_recovery(wil);
1578                 return rc;
1579         }
1580
1581         if (full_disconnect) {
1582                 /* call event handler manually after processing wmi_call,
1583                  * to avoid deadlock - disconnect event handler acquires
1584                  * wil->mutex while it is already held here
1585                  */
1586                 reason_code = le16_to_cpu(reply.evt.protocol_reason_status);
1587
1588                 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
1589                             reply.evt.bssid, reason_code,
1590                             reply.evt.disconnect_reason);
1591
1592                 wil->sinfo_gen++;
1593                 wil6210_disconnect(wil, reply.evt.bssid, reason_code, true);
1594         }
1595         return 0;
1596 }
1597
1598 int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout)
1599 {
1600         struct wmi_vring_ba_en_cmd cmd = {
1601                 .ringid = ringid,
1602                 .agg_max_wsize = size,
1603                 .ba_timeout = cpu_to_le16(timeout),
1604                 .amsdu = 0,
1605         };
1606
1607         wil_dbg_wmi(wil, "addba: (ring %d size %d timeout %d)\n", ringid, size,
1608                     timeout);
1609
1610         return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd));
1611 }
1612
1613 int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason)
1614 {
1615         struct wmi_vring_ba_dis_cmd cmd = {
1616                 .ringid = ringid,
1617                 .reason = cpu_to_le16(reason),
1618         };
1619
1620         wil_dbg_wmi(wil, "delba_tx: (ring %d reason %d)\n", ringid, reason);
1621
1622         return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd));
1623 }
1624
1625 int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason)
1626 {
1627         struct wmi_rcp_delba_cmd cmd = {
1628                 .cidxtid = cidxtid,
1629                 .reason = cpu_to_le16(reason),
1630         };
1631
1632         wil_dbg_wmi(wil, "delba_rx: (CID %d TID %d reason %d)\n", cidxtid & 0xf,
1633                     (cidxtid >> 4) & 0xf, reason);
1634
1635         return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd));
1636 }
1637
1638 int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token,
1639                       u16 status, bool amsdu, u16 agg_wsize, u16 timeout)
1640 {
1641         int rc;
1642         struct wmi_rcp_addba_resp_cmd cmd = {
1643                 .cidxtid = mk_cidxtid(cid, tid),
1644                 .dialog_token = token,
1645                 .status_code = cpu_to_le16(status),
1646                 /* bit 0: A-MSDU supported
1647                  * bit 1: policy (should be 0 for us)
1648                  * bits 2..5: TID
1649                  * bits 6..15: buffer size
1650                  */
1651                 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) |
1652                                             (agg_wsize << 6)),
1653                 .ba_timeout = cpu_to_le16(timeout),
1654         };
1655         struct {
1656                 struct wmi_cmd_hdr wmi;
1657                 struct wmi_rcp_addba_resp_sent_event evt;
1658         } __packed reply;
1659
1660         wil_dbg_wmi(wil,
1661                     "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n",
1662                     cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-");
1663
1664         rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd),
1665                       WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply),
1666                       100);
1667         if (rc)
1668                 return rc;
1669
1670         if (reply.evt.status) {
1671                 wil_err(wil, "ADDBA response failed with status %d\n",
1672                         le16_to_cpu(reply.evt.status));
1673                 rc = -EINVAL;
1674         }
1675
1676         return rc;
1677 }
1678
1679 int wmi_ps_dev_profile_cfg(struct wil6210_priv *wil,
1680                            enum wmi_ps_profile_type ps_profile)
1681 {
1682         int rc;
1683         struct wmi_ps_dev_profile_cfg_cmd cmd = {
1684                 .ps_profile = ps_profile,
1685         };
1686         struct {
1687                 struct wmi_cmd_hdr wmi;
1688                 struct wmi_ps_dev_profile_cfg_event evt;
1689         } __packed reply;
1690         u32 status;
1691
1692         wil_dbg_wmi(wil, "Setting ps dev profile %d\n", ps_profile);
1693
1694         reply.evt.status = cpu_to_le32(WMI_PS_CFG_CMD_STATUS_ERROR);
1695
1696         rc = wmi_call(wil, WMI_PS_DEV_PROFILE_CFG_CMDID, &cmd, sizeof(cmd),
1697                       WMI_PS_DEV_PROFILE_CFG_EVENTID, &reply, sizeof(reply),
1698                       100);
1699         if (rc)
1700                 return rc;
1701
1702         status = le32_to_cpu(reply.evt.status);
1703
1704         if (status != WMI_PS_CFG_CMD_STATUS_SUCCESS) {
1705                 wil_err(wil, "ps dev profile cfg failed with status %d\n",
1706                         status);
1707                 rc = -EINVAL;
1708         }
1709
1710         return rc;
1711 }
1712
1713 int wmi_set_mgmt_retry(struct wil6210_priv *wil, u8 retry_short)
1714 {
1715         int rc;
1716         struct wmi_set_mgmt_retry_limit_cmd cmd = {
1717                 .mgmt_retry_limit = retry_short,
1718         };
1719         struct {
1720                 struct wmi_cmd_hdr wmi;
1721                 struct wmi_set_mgmt_retry_limit_event evt;
1722         } __packed reply;
1723
1724         wil_dbg_wmi(wil, "Setting mgmt retry short %d\n", retry_short);
1725
1726         if (!test_bit(WMI_FW_CAPABILITY_MGMT_RETRY_LIMIT, wil->fw_capabilities))
1727                 return -ENOTSUPP;
1728
1729         reply.evt.status = WMI_FW_STATUS_FAILURE;
1730
1731         rc = wmi_call(wil, WMI_SET_MGMT_RETRY_LIMIT_CMDID, &cmd, sizeof(cmd),
1732                       WMI_SET_MGMT_RETRY_LIMIT_EVENTID, &reply, sizeof(reply),
1733                       100);
1734         if (rc)
1735                 return rc;
1736
1737         if (reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1738                 wil_err(wil, "set mgmt retry limit failed with status %d\n",
1739                         reply.evt.status);
1740                 rc = -EINVAL;
1741         }
1742
1743         return rc;
1744 }
1745
1746 int wmi_get_mgmt_retry(struct wil6210_priv *wil, u8 *retry_short)
1747 {
1748         int rc;
1749         struct {
1750                 struct wmi_cmd_hdr wmi;
1751                 struct wmi_get_mgmt_retry_limit_event evt;
1752         } __packed reply;
1753
1754         wil_dbg_wmi(wil, "getting mgmt retry short\n");
1755
1756         if (!test_bit(WMI_FW_CAPABILITY_MGMT_RETRY_LIMIT, wil->fw_capabilities))
1757                 return -ENOTSUPP;
1758
1759         reply.evt.mgmt_retry_limit = 0;
1760         rc = wmi_call(wil, WMI_GET_MGMT_RETRY_LIMIT_CMDID, NULL, 0,
1761                       WMI_GET_MGMT_RETRY_LIMIT_EVENTID, &reply, sizeof(reply),
1762                       100);
1763         if (rc)
1764                 return rc;
1765
1766         if (retry_short)
1767                 *retry_short = reply.evt.mgmt_retry_limit;
1768
1769         return 0;
1770 }
1771
1772 int wmi_abort_scan(struct wil6210_priv *wil)
1773 {
1774         int rc;
1775
1776         wil_dbg_wmi(wil, "sending WMI_ABORT_SCAN_CMDID\n");
1777
1778         rc = wmi_send(wil, WMI_ABORT_SCAN_CMDID, NULL, 0);
1779         if (rc)
1780                 wil_err(wil, "Failed to abort scan (%d)\n", rc);
1781
1782         return rc;
1783 }
1784
1785 int wmi_new_sta(struct wil6210_priv *wil, const u8 *mac, u8 aid)
1786 {
1787         int rc;
1788         struct wmi_new_sta_cmd cmd = {
1789                 .aid = aid,
1790         };
1791
1792         wil_dbg_wmi(wil, "new sta %pM, aid %d\n", mac, aid);
1793
1794         ether_addr_copy(cmd.dst_mac, mac);
1795
1796         rc = wmi_send(wil, WMI_NEW_STA_CMDID, &cmd, sizeof(cmd));
1797         if (rc)
1798                 wil_err(wil, "Failed to send new sta (%d)\n", rc);
1799
1800         return rc;
1801 }
1802
1803 void wmi_event_flush(struct wil6210_priv *wil)
1804 {
1805         ulong flags;
1806         struct pending_wmi_event *evt, *t;
1807
1808         wil_dbg_wmi(wil, "event_flush\n");
1809
1810         spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1811
1812         list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) {
1813                 list_del(&evt->list);
1814                 kfree(evt);
1815         }
1816
1817         spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1818 }
1819
1820 int wmi_suspend(struct wil6210_priv *wil)
1821 {
1822         int rc;
1823         struct wmi_traffic_suspend_cmd cmd = {
1824                 .wakeup_trigger = wil->wakeup_trigger,
1825         };
1826         struct {
1827                 struct wmi_cmd_hdr wmi;
1828                 struct wmi_traffic_suspend_event evt;
1829         } __packed reply;
1830         u32 suspend_to = WIL_WAIT_FOR_SUSPEND_RESUME_COMP;
1831
1832         wil->suspend_resp_rcvd = false;
1833         wil->suspend_resp_comp = false;
1834
1835         reply.evt.status = WMI_TRAFFIC_SUSPEND_REJECTED;
1836
1837         rc = wmi_call(wil, WMI_TRAFFIC_SUSPEND_CMDID, &cmd, sizeof(cmd),
1838                       WMI_TRAFFIC_SUSPEND_EVENTID, &reply, sizeof(reply),
1839                       suspend_to);
1840         if (rc) {
1841                 wil_err(wil, "wmi_call for suspend req failed, rc=%d\n", rc);
1842                 if (rc == -ETIME)
1843                         /* wmi_call TO */
1844                         wil->suspend_stats.rejected_by_device++;
1845                 else
1846                         wil->suspend_stats.rejected_by_host++;
1847                 goto out;
1848         }
1849
1850         wil_dbg_wmi(wil, "waiting for suspend_response_completed\n");
1851
1852         rc = wait_event_interruptible_timeout(wil->wq,
1853                                               wil->suspend_resp_comp,
1854                                               msecs_to_jiffies(suspend_to));
1855         if (rc == 0) {
1856                 wil_err(wil, "TO waiting for suspend_response_completed\n");
1857                 if (wil->suspend_resp_rcvd)
1858                         /* Device responded but we TO due to another reason */
1859                         wil->suspend_stats.rejected_by_host++;
1860                 else
1861                         wil->suspend_stats.rejected_by_device++;
1862                 rc = -EBUSY;
1863                 goto out;
1864         }
1865
1866         wil_dbg_wmi(wil, "suspend_response_completed rcvd\n");
1867         if (reply.evt.status == WMI_TRAFFIC_SUSPEND_REJECTED) {
1868                 wil_dbg_pm(wil, "device rejected the suspend\n");
1869                 wil->suspend_stats.rejected_by_device++;
1870         }
1871         rc = reply.evt.status;
1872
1873 out:
1874         wil->suspend_resp_rcvd = false;
1875         wil->suspend_resp_comp = false;
1876
1877         return rc;
1878 }
1879
1880 int wmi_resume(struct wil6210_priv *wil)
1881 {
1882         int rc;
1883         struct {
1884                 struct wmi_cmd_hdr wmi;
1885                 struct wmi_traffic_resume_event evt;
1886         } __packed reply;
1887
1888         reply.evt.status = WMI_TRAFFIC_RESUME_FAILED;
1889
1890         rc = wmi_call(wil, WMI_TRAFFIC_RESUME_CMDID, NULL, 0,
1891                       WMI_TRAFFIC_RESUME_EVENTID, &reply, sizeof(reply),
1892                       WIL_WAIT_FOR_SUSPEND_RESUME_COMP);
1893         if (rc)
1894                 return rc;
1895
1896         return reply.evt.status;
1897 }
1898
1899 static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id,
1900                                  void *d, int len)
1901 {
1902         uint i;
1903
1904         for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) {
1905                 if (wmi_evt_handlers[i].eventid == id) {
1906                         wmi_evt_handlers[i].handler(wil, id, d, len);
1907                         return true;
1908                 }
1909         }
1910
1911         return false;
1912 }
1913
1914 static void wmi_event_handle(struct wil6210_priv *wil,
1915                              struct wil6210_mbox_hdr *hdr)
1916 {
1917         u16 len = le16_to_cpu(hdr->len);
1918
1919         if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) &&
1920             (len >= sizeof(struct wmi_cmd_hdr))) {
1921                 struct wmi_cmd_hdr *wmi = (void *)(&hdr[1]);
1922                 void *evt_data = (void *)(&wmi[1]);
1923                 u16 id = le16_to_cpu(wmi->command_id);
1924
1925                 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n",
1926                             id, wil->reply_id);
1927                 /* check if someone waits for this event */
1928                 if (wil->reply_id && wil->reply_id == id) {
1929                         WARN_ON(wil->reply_buf);
1930                         wmi_evt_call_handler(wil, id, evt_data,
1931                                              len - sizeof(*wmi));
1932                         wil_dbg_wmi(wil, "event_handle: Complete WMI 0x%04x\n",
1933                                     id);
1934                         complete(&wil->wmi_call);
1935                         return;
1936                 }
1937                 /* unsolicited event */
1938                 /* search for handler */
1939                 if (!wmi_evt_call_handler(wil, id, evt_data,
1940                                           len - sizeof(*wmi))) {
1941                         wil_info(wil, "Unhandled event 0x%04x\n", id);
1942                 }
1943         } else {
1944                 wil_err(wil, "Unknown event type\n");
1945                 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1,
1946                                hdr, sizeof(*hdr) + len, true);
1947         }
1948 }
1949
1950 /*
1951  * Retrieve next WMI event from the pending list
1952  */
1953 static struct list_head *next_wmi_ev(struct wil6210_priv *wil)
1954 {
1955         ulong flags;
1956         struct list_head *ret = NULL;
1957
1958         spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1959
1960         if (!list_empty(&wil->pending_wmi_ev)) {
1961                 ret = wil->pending_wmi_ev.next;
1962                 list_del(ret);
1963         }
1964
1965         spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1966
1967         return ret;
1968 }
1969
1970 /*
1971  * Handler for the WMI events
1972  */
1973 void wmi_event_worker(struct work_struct *work)
1974 {
1975         struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
1976                                                  wmi_event_worker);
1977         struct pending_wmi_event *evt;
1978         struct list_head *lh;
1979
1980         wil_dbg_wmi(wil, "event_worker: Start\n");
1981         while ((lh = next_wmi_ev(wil)) != NULL) {
1982                 evt = list_entry(lh, struct pending_wmi_event, list);
1983                 wmi_event_handle(wil, &evt->event.hdr);
1984                 kfree(evt);
1985         }
1986         wil_dbg_wmi(wil, "event_worker: Finished\n");
1987 }
1988
1989 bool wil_is_wmi_idle(struct wil6210_priv *wil)
1990 {
1991         ulong flags;
1992         struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx;
1993         bool rc = false;
1994
1995         spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1996
1997         /* Check if there are pending WMI events in the events queue */
1998         if (!list_empty(&wil->pending_wmi_ev)) {
1999                 wil_dbg_pm(wil, "Pending WMI events in queue\n");
2000                 goto out;
2001         }
2002
2003         /* Check if there is a pending WMI call */
2004         if (wil->reply_id) {
2005                 wil_dbg_pm(wil, "Pending WMI call\n");
2006                 goto out;
2007         }
2008
2009         /* Check if there are pending RX events in mbox */
2010         r->head = wil_r(wil, RGF_MBOX +
2011                         offsetof(struct wil6210_mbox_ctl, rx.head));
2012         if (r->tail != r->head)
2013                 wil_dbg_pm(wil, "Pending WMI mbox events\n");
2014         else
2015                 rc = true;
2016
2017 out:
2018         spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
2019         return rc;
2020 }