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