linux/drivers/net/wireless/wl12xx/cmd.c
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   1/*
   2 * This file is part of wl1271
   3 *
   4 * Copyright (C) 2009-2010 Nokia Corporation
   5 *
   6 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License
  10 * version 2 as published by the Free Software Foundation.
  11 *
  12 * This program is distributed in the hope that it will be useful, but
  13 * WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 * General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU General Public License
  18 * along with this program; if not, write to the Free Software
  19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  20 * 02110-1301 USA
  21 *
  22 */
  23
  24#include <linux/module.h>
  25#include <linux/platform_device.h>
  26#include <linux/spi/spi.h>
  27#include <linux/etherdevice.h>
  28#include <linux/ieee80211.h>
  29#include <linux/slab.h>
  30
  31#include "wl12xx.h"
  32#include "debug.h"
  33#include "reg.h"
  34#include "io.h"
  35#include "acx.h"
  36#include "wl12xx_80211.h"
  37#include "cmd.h"
  38#include "event.h"
  39#include "tx.h"
  40
  41#define WL1271_CMD_FAST_POLL_COUNT       50
  42
  43/*
  44 * send command to firmware
  45 *
  46 * @wl: wl struct
  47 * @id: command id
  48 * @buf: buffer containing the command, must work with dma
  49 * @len: length of the buffer
  50 */
  51int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len,
  52                    size_t res_len)
  53{
  54        struct wl1271_cmd_header *cmd;
  55        unsigned long timeout;
  56        u32 intr;
  57        int ret = 0;
  58        u16 status;
  59        u16 poll_count = 0;
  60
  61        cmd = buf;
  62        cmd->id = cpu_to_le16(id);
  63        cmd->status = 0;
  64
  65        WARN_ON(len % 4 != 0);
  66        WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags));
  67
  68        wl1271_write(wl, wl->cmd_box_addr, buf, len, false);
  69
  70        wl1271_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD);
  71
  72        timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT);
  73
  74        intr = wl1271_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
  75        while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) {
  76                if (time_after(jiffies, timeout)) {
  77                        wl1271_error("command complete timeout");
  78                        ret = -ETIMEDOUT;
  79                        goto fail;
  80                }
  81
  82                poll_count++;
  83                if (poll_count < WL1271_CMD_FAST_POLL_COUNT)
  84                        udelay(10);
  85                else
  86                        msleep(1);
  87
  88                intr = wl1271_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
  89        }
  90
  91        /* read back the status code of the command */
  92        if (res_len == 0)
  93                res_len = sizeof(struct wl1271_cmd_header);
  94        wl1271_read(wl, wl->cmd_box_addr, cmd, res_len, false);
  95
  96        status = le16_to_cpu(cmd->status);
  97        if (status != CMD_STATUS_SUCCESS) {
  98                wl1271_error("command execute failure %d", status);
  99                ret = -EIO;
 100                goto fail;
 101        }
 102
 103        wl1271_write32(wl, ACX_REG_INTERRUPT_ACK,
 104                       WL1271_ACX_INTR_CMD_COMPLETE);
 105        return 0;
 106
 107fail:
 108        WARN_ON(1);
 109        wl12xx_queue_recovery_work(wl);
 110        return ret;
 111}
 112
 113int wl1271_cmd_general_parms(struct wl1271 *wl)
 114{
 115        struct wl1271_general_parms_cmd *gen_parms;
 116        struct wl1271_ini_general_params *gp =
 117                &((struct wl1271_nvs_file *)wl->nvs)->general_params;
 118        bool answer = false;
 119        int ret;
 120
 121        if (!wl->nvs)
 122                return -ENODEV;
 123
 124        if (gp->tx_bip_fem_manufacturer >= WL1271_INI_FEM_MODULE_COUNT) {
 125                wl1271_warning("FEM index from INI out of bounds");
 126                return -EINVAL;
 127        }
 128
 129        gen_parms = kzalloc(sizeof(*gen_parms), GFP_KERNEL);
 130        if (!gen_parms)
 131                return -ENOMEM;
 132
 133        gen_parms->test.id = TEST_CMD_INI_FILE_GENERAL_PARAM;
 134
 135        memcpy(&gen_parms->general_params, gp, sizeof(*gp));
 136
 137        if (gp->tx_bip_fem_auto_detect)
 138                answer = true;
 139
 140        /* Override the REF CLK from the NVS with the one from platform data */
 141        gen_parms->general_params.ref_clock = wl->ref_clock;
 142
 143        ret = wl1271_cmd_test(wl, gen_parms, sizeof(*gen_parms), answer);
 144        if (ret < 0) {
 145                wl1271_warning("CMD_INI_FILE_GENERAL_PARAM failed");
 146                goto out;
 147        }
 148
 149        gp->tx_bip_fem_manufacturer =
 150                gen_parms->general_params.tx_bip_fem_manufacturer;
 151
 152        if (gp->tx_bip_fem_manufacturer >= WL1271_INI_FEM_MODULE_COUNT) {
 153                wl1271_warning("FEM index from FW out of bounds");
 154                ret = -EINVAL;
 155                goto out;
 156        }
 157
 158        wl1271_debug(DEBUG_CMD, "FEM autodetect: %s, manufacturer: %d\n",
 159                     answer ? "auto" : "manual", gp->tx_bip_fem_manufacturer);
 160
 161out:
 162        kfree(gen_parms);
 163        return ret;
 164}
 165
 166int wl128x_cmd_general_parms(struct wl1271 *wl)
 167{
 168        struct wl128x_general_parms_cmd *gen_parms;
 169        struct wl128x_ini_general_params *gp =
 170                &((struct wl128x_nvs_file *)wl->nvs)->general_params;
 171        bool answer = false;
 172        int ret;
 173
 174        if (!wl->nvs)
 175                return -ENODEV;
 176
 177        if (gp->tx_bip_fem_manufacturer >= WL1271_INI_FEM_MODULE_COUNT) {
 178                wl1271_warning("FEM index from ini out of bounds");
 179                return -EINVAL;
 180        }
 181
 182        gen_parms = kzalloc(sizeof(*gen_parms), GFP_KERNEL);
 183        if (!gen_parms)
 184                return -ENOMEM;
 185
 186        gen_parms->test.id = TEST_CMD_INI_FILE_GENERAL_PARAM;
 187
 188        memcpy(&gen_parms->general_params, gp, sizeof(*gp));
 189
 190        if (gp->tx_bip_fem_auto_detect)
 191                answer = true;
 192
 193        /* Replace REF and TCXO CLKs with the ones from platform data */
 194        gen_parms->general_params.ref_clock = wl->ref_clock;
 195        gen_parms->general_params.tcxo_ref_clock = wl->tcxo_clock;
 196
 197        ret = wl1271_cmd_test(wl, gen_parms, sizeof(*gen_parms), answer);
 198        if (ret < 0) {
 199                wl1271_warning("CMD_INI_FILE_GENERAL_PARAM failed");
 200                goto out;
 201        }
 202
 203        gp->tx_bip_fem_manufacturer =
 204                gen_parms->general_params.tx_bip_fem_manufacturer;
 205
 206        if (gp->tx_bip_fem_manufacturer >= WL1271_INI_FEM_MODULE_COUNT) {
 207                wl1271_warning("FEM index from FW out of bounds");
 208                ret = -EINVAL;
 209                goto out;
 210        }
 211
 212        wl1271_debug(DEBUG_CMD, "FEM autodetect: %s, manufacturer: %d\n",
 213                     answer ? "auto" : "manual", gp->tx_bip_fem_manufacturer);
 214
 215out:
 216        kfree(gen_parms);
 217        return ret;
 218}
 219
 220int wl1271_cmd_radio_parms(struct wl1271 *wl)
 221{
 222        struct wl1271_nvs_file *nvs = (struct wl1271_nvs_file *)wl->nvs;
 223        struct wl1271_radio_parms_cmd *radio_parms;
 224        struct wl1271_ini_general_params *gp = &nvs->general_params;
 225        int ret;
 226
 227        if (!wl->nvs)
 228                return -ENODEV;
 229
 230        radio_parms = kzalloc(sizeof(*radio_parms), GFP_KERNEL);
 231        if (!radio_parms)
 232                return -ENOMEM;
 233
 234        radio_parms->test.id = TEST_CMD_INI_FILE_RADIO_PARAM;
 235
 236        /* 2.4GHz parameters */
 237        memcpy(&radio_parms->static_params_2, &nvs->stat_radio_params_2,
 238               sizeof(struct wl1271_ini_band_params_2));
 239        memcpy(&radio_parms->dyn_params_2,
 240               &nvs->dyn_radio_params_2[gp->tx_bip_fem_manufacturer].params,
 241               sizeof(struct wl1271_ini_fem_params_2));
 242
 243        /* 5GHz parameters */
 244        memcpy(&radio_parms->static_params_5,
 245               &nvs->stat_radio_params_5,
 246               sizeof(struct wl1271_ini_band_params_5));
 247        memcpy(&radio_parms->dyn_params_5,
 248               &nvs->dyn_radio_params_5[gp->tx_bip_fem_manufacturer].params,
 249               sizeof(struct wl1271_ini_fem_params_5));
 250
 251        wl1271_dump(DEBUG_CMD, "TEST_CMD_INI_FILE_RADIO_PARAM: ",
 252                    radio_parms, sizeof(*radio_parms));
 253
 254        ret = wl1271_cmd_test(wl, radio_parms, sizeof(*radio_parms), 0);
 255        if (ret < 0)
 256                wl1271_warning("CMD_INI_FILE_RADIO_PARAM failed");
 257
 258        kfree(radio_parms);
 259        return ret;
 260}
 261
 262int wl128x_cmd_radio_parms(struct wl1271 *wl)
 263{
 264        struct wl128x_nvs_file *nvs = (struct wl128x_nvs_file *)wl->nvs;
 265        struct wl128x_radio_parms_cmd *radio_parms;
 266        struct wl128x_ini_general_params *gp = &nvs->general_params;
 267        int ret;
 268
 269        if (!wl->nvs)
 270                return -ENODEV;
 271
 272        radio_parms = kzalloc(sizeof(*radio_parms), GFP_KERNEL);
 273        if (!radio_parms)
 274                return -ENOMEM;
 275
 276        radio_parms->test.id = TEST_CMD_INI_FILE_RADIO_PARAM;
 277
 278        /* 2.4GHz parameters */
 279        memcpy(&radio_parms->static_params_2, &nvs->stat_radio_params_2,
 280               sizeof(struct wl128x_ini_band_params_2));
 281        memcpy(&radio_parms->dyn_params_2,
 282               &nvs->dyn_radio_params_2[gp->tx_bip_fem_manufacturer].params,
 283               sizeof(struct wl128x_ini_fem_params_2));
 284
 285        /* 5GHz parameters */
 286        memcpy(&radio_parms->static_params_5,
 287               &nvs->stat_radio_params_5,
 288               sizeof(struct wl128x_ini_band_params_5));
 289        memcpy(&radio_parms->dyn_params_5,
 290               &nvs->dyn_radio_params_5[gp->tx_bip_fem_manufacturer].params,
 291               sizeof(struct wl128x_ini_fem_params_5));
 292
 293        radio_parms->fem_vendor_and_options = nvs->fem_vendor_and_options;
 294
 295        wl1271_dump(DEBUG_CMD, "TEST_CMD_INI_FILE_RADIO_PARAM: ",
 296                    radio_parms, sizeof(*radio_parms));
 297
 298        ret = wl1271_cmd_test(wl, radio_parms, sizeof(*radio_parms), 0);
 299        if (ret < 0)
 300                wl1271_warning("CMD_INI_FILE_RADIO_PARAM failed");
 301
 302        kfree(radio_parms);
 303        return ret;
 304}
 305
 306int wl1271_cmd_ext_radio_parms(struct wl1271 *wl)
 307{
 308        struct wl1271_ext_radio_parms_cmd *ext_radio_parms;
 309        struct conf_rf_settings *rf = &wl->conf.rf;
 310        int ret;
 311
 312        if (!wl->nvs)
 313                return -ENODEV;
 314
 315        ext_radio_parms = kzalloc(sizeof(*ext_radio_parms), GFP_KERNEL);
 316        if (!ext_radio_parms)
 317                return -ENOMEM;
 318
 319        ext_radio_parms->test.id = TEST_CMD_INI_FILE_RF_EXTENDED_PARAM;
 320
 321        memcpy(ext_radio_parms->tx_per_channel_power_compensation_2,
 322               rf->tx_per_channel_power_compensation_2,
 323               CONF_TX_PWR_COMPENSATION_LEN_2);
 324        memcpy(ext_radio_parms->tx_per_channel_power_compensation_5,
 325               rf->tx_per_channel_power_compensation_5,
 326               CONF_TX_PWR_COMPENSATION_LEN_5);
 327
 328        wl1271_dump(DEBUG_CMD, "TEST_CMD_INI_FILE_EXT_RADIO_PARAM: ",
 329                    ext_radio_parms, sizeof(*ext_radio_parms));
 330
 331        ret = wl1271_cmd_test(wl, ext_radio_parms, sizeof(*ext_radio_parms), 0);
 332        if (ret < 0)
 333                wl1271_warning("TEST_CMD_INI_FILE_RF_EXTENDED_PARAM failed");
 334
 335        kfree(ext_radio_parms);
 336        return ret;
 337}
 338
 339/*
 340 * Poll the mailbox event field until any of the bits in the mask is set or a
 341 * timeout occurs (WL1271_EVENT_TIMEOUT in msecs)
 342 */
 343static int wl1271_cmd_wait_for_event_or_timeout(struct wl1271 *wl, u32 mask)
 344{
 345        u32 events_vector, event;
 346        unsigned long timeout;
 347
 348        timeout = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT);
 349
 350        do {
 351                if (time_after(jiffies, timeout)) {
 352                        wl1271_debug(DEBUG_CMD, "timeout waiting for event %d",
 353                                     (int)mask);
 354                        return -ETIMEDOUT;
 355                }
 356
 357                msleep(1);
 358
 359                /* read from both event fields */
 360                wl1271_read(wl, wl->mbox_ptr[0], &events_vector,
 361                            sizeof(events_vector), false);
 362                event = events_vector & mask;
 363                wl1271_read(wl, wl->mbox_ptr[1], &events_vector,
 364                            sizeof(events_vector), false);
 365                event |= events_vector & mask;
 366        } while (!event);
 367
 368        return 0;
 369}
 370
 371static int wl1271_cmd_wait_for_event(struct wl1271 *wl, u32 mask)
 372{
 373        int ret;
 374
 375        ret = wl1271_cmd_wait_for_event_or_timeout(wl, mask);
 376        if (ret != 0) {
 377                wl12xx_queue_recovery_work(wl);
 378                return ret;
 379        }
 380
 381        return 0;
 382}
 383
 384int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type,
 385                           u8 *role_id)
 386{
 387        struct wl12xx_cmd_role_enable *cmd;
 388        int ret;
 389
 390        wl1271_debug(DEBUG_CMD, "cmd role enable");
 391
 392        if (WARN_ON(*role_id != WL12XX_INVALID_ROLE_ID))
 393                return -EBUSY;
 394
 395        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 396        if (!cmd) {
 397                ret = -ENOMEM;
 398                goto out;
 399        }
 400
 401        /* get role id */
 402        cmd->role_id = find_first_zero_bit(wl->roles_map, WL12XX_MAX_ROLES);
 403        if (cmd->role_id >= WL12XX_MAX_ROLES) {
 404                ret = -EBUSY;
 405                goto out_free;
 406        }
 407
 408        memcpy(cmd->mac_address, addr, ETH_ALEN);
 409        cmd->role_type = role_type;
 410
 411        ret = wl1271_cmd_send(wl, CMD_ROLE_ENABLE, cmd, sizeof(*cmd), 0);
 412        if (ret < 0) {
 413                wl1271_error("failed to initiate cmd role enable");
 414                goto out_free;
 415        }
 416
 417        __set_bit(cmd->role_id, wl->roles_map);
 418        *role_id = cmd->role_id;
 419
 420out_free:
 421        kfree(cmd);
 422
 423out:
 424        return ret;
 425}
 426
 427int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id)
 428{
 429        struct wl12xx_cmd_role_disable *cmd;
 430        int ret;
 431
 432        wl1271_debug(DEBUG_CMD, "cmd role disable");
 433
 434        if (WARN_ON(*role_id == WL12XX_INVALID_ROLE_ID))
 435                return -ENOENT;
 436
 437        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 438        if (!cmd) {
 439                ret = -ENOMEM;
 440                goto out;
 441        }
 442        cmd->role_id = *role_id;
 443
 444        ret = wl1271_cmd_send(wl, CMD_ROLE_DISABLE, cmd, sizeof(*cmd), 0);
 445        if (ret < 0) {
 446                wl1271_error("failed to initiate cmd role disable");
 447                goto out_free;
 448        }
 449
 450        __clear_bit(*role_id, wl->roles_map);
 451        *role_id = WL12XX_INVALID_ROLE_ID;
 452
 453out_free:
 454        kfree(cmd);
 455
 456out:
 457        return ret;
 458}
 459
 460int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
 461{
 462        u8 link = find_first_zero_bit(wl->links_map, WL12XX_MAX_LINKS);
 463        if (link >= WL12XX_MAX_LINKS)
 464                return -EBUSY;
 465
 466        __set_bit(link, wl->links_map);
 467        __set_bit(link, wlvif->links_map);
 468        *hlid = link;
 469        return 0;
 470}
 471
 472void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
 473{
 474        if (*hlid == WL12XX_INVALID_LINK_ID)
 475                return;
 476
 477        __clear_bit(*hlid, wl->links_map);
 478        __clear_bit(*hlid, wlvif->links_map);
 479        *hlid = WL12XX_INVALID_LINK_ID;
 480}
 481
 482static int wl12xx_get_new_session_id(struct wl1271 *wl,
 483                                     struct wl12xx_vif *wlvif)
 484{
 485        if (wlvif->session_counter >= SESSION_COUNTER_MAX)
 486                wlvif->session_counter = 0;
 487
 488        wlvif->session_counter++;
 489
 490        return wlvif->session_counter;
 491}
 492
 493static int wl12xx_cmd_role_start_dev(struct wl1271 *wl,
 494                                     struct wl12xx_vif *wlvif)
 495{
 496        struct wl12xx_cmd_role_start *cmd;
 497        int ret;
 498
 499        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 500        if (!cmd) {
 501                ret = -ENOMEM;
 502                goto out;
 503        }
 504
 505        wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id);
 506
 507        cmd->role_id = wlvif->dev_role_id;
 508        if (wlvif->band == IEEE80211_BAND_5GHZ)
 509                cmd->band = WL12XX_BAND_5GHZ;
 510        cmd->channel = wlvif->channel;
 511
 512        if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) {
 513                ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid);
 514                if (ret)
 515                        goto out_free;
 516        }
 517        cmd->device.hlid = wlvif->dev_hlid;
 518        cmd->device.session = wlvif->session_counter;
 519
 520        wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d",
 521                     cmd->role_id, cmd->device.hlid, cmd->device.session);
 522
 523        ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
 524        if (ret < 0) {
 525                wl1271_error("failed to initiate cmd role enable");
 526                goto err_hlid;
 527        }
 528
 529        goto out_free;
 530
 531err_hlid:
 532        /* clear links on error */
 533        wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
 534
 535out_free:
 536        kfree(cmd);
 537
 538out:
 539        return ret;
 540}
 541
 542static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl,
 543                                    struct wl12xx_vif *wlvif)
 544{
 545        struct wl12xx_cmd_role_stop *cmd;
 546        int ret;
 547
 548        if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID))
 549                return -EINVAL;
 550
 551        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 552        if (!cmd) {
 553                ret = -ENOMEM;
 554                goto out;
 555        }
 556
 557        wl1271_debug(DEBUG_CMD, "cmd role stop dev");
 558
 559        cmd->role_id = wlvif->dev_role_id;
 560        cmd->disc_type = DISCONNECT_IMMEDIATE;
 561        cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
 562
 563        ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
 564        if (ret < 0) {
 565                wl1271_error("failed to initiate cmd role stop");
 566                goto out_free;
 567        }
 568
 569        ret = wl1271_cmd_wait_for_event(wl, DISCONNECT_EVENT_COMPLETE_ID);
 570        if (ret < 0) {
 571                wl1271_error("cmd role stop dev event completion error");
 572                goto out_free;
 573        }
 574
 575        wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
 576
 577out_free:
 578        kfree(cmd);
 579
 580out:
 581        return ret;
 582}
 583
 584int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 585{
 586        struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
 587        struct wl12xx_cmd_role_start *cmd;
 588        int ret;
 589
 590        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 591        if (!cmd) {
 592                ret = -ENOMEM;
 593                goto out;
 594        }
 595
 596        wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id);
 597
 598        cmd->role_id = wlvif->role_id;
 599        if (wlvif->band == IEEE80211_BAND_5GHZ)
 600                cmd->band = WL12XX_BAND_5GHZ;
 601        cmd->channel = wlvif->channel;
 602        cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
 603        cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int);
 604        cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY;
 605        cmd->sta.ssid_len = wlvif->ssid_len;
 606        memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len);
 607        memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN);
 608        cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set);
 609
 610        if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
 611                ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
 612                if (ret)
 613                        goto out_free;
 614        }
 615        cmd->sta.hlid = wlvif->sta.hlid;
 616        cmd->sta.session = wl12xx_get_new_session_id(wl, wlvif);
 617        cmd->sta.remote_rates = cpu_to_le32(wlvif->rate_set);
 618
 619        wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
 620                     "basic_rate_set: 0x%x, remote_rates: 0x%x",
 621                     wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
 622                     wlvif->basic_rate_set, wlvif->rate_set);
 623
 624        ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
 625        if (ret < 0) {
 626                wl1271_error("failed to initiate cmd role start sta");
 627                goto err_hlid;
 628        }
 629
 630        goto out_free;
 631
 632err_hlid:
 633        /* clear links on error. */
 634        wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
 635
 636out_free:
 637        kfree(cmd);
 638
 639out:
 640        return ret;
 641}
 642
 643/* use this function to stop ibss as well */
 644int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 645{
 646        struct wl12xx_cmd_role_stop *cmd;
 647        int ret;
 648
 649        if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID))
 650                return -EINVAL;
 651
 652        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 653        if (!cmd) {
 654                ret = -ENOMEM;
 655                goto out;
 656        }
 657
 658        wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id);
 659
 660        cmd->role_id = wlvif->role_id;
 661        cmd->disc_type = DISCONNECT_IMMEDIATE;
 662        cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
 663
 664        ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
 665        if (ret < 0) {
 666                wl1271_error("failed to initiate cmd role stop sta");
 667                goto out_free;
 668        }
 669
 670        wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
 671
 672out_free:
 673        kfree(cmd);
 674
 675out:
 676        return ret;
 677}
 678
 679int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 680{
 681        struct wl12xx_cmd_role_start *cmd;
 682        struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
 683        struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
 684        int ret;
 685
 686        wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id);
 687
 688        /* trying to use hidden SSID with an old hostapd version */
 689        if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) {
 690                wl1271_error("got a null SSID from beacon/bss");
 691                ret = -EINVAL;
 692                goto out;
 693        }
 694
 695        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 696        if (!cmd) {
 697                ret = -ENOMEM;
 698                goto out;
 699        }
 700
 701        ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid);
 702        if (ret < 0)
 703                goto out_free;
 704
 705        ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid);
 706        if (ret < 0)
 707                goto out_free_global;
 708
 709        cmd->role_id = wlvif->role_id;
 710        cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period);
 711        cmd->ap.bss_index = WL1271_AP_BSS_INDEX;
 712        cmd->ap.global_hlid = wlvif->ap.global_hlid;
 713        cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid;
 714        cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
 715        cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int);
 716        cmd->ap.dtim_interval = bss_conf->dtim_period;
 717        cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP;
 718        cmd->channel = wlvif->channel;
 719
 720        if (!bss_conf->hidden_ssid) {
 721                /* take the SSID from the beacon for backward compatibility */
 722                cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC;
 723                cmd->ap.ssid_len = wlvif->ssid_len;
 724                memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len);
 725        } else {
 726                cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN;
 727                cmd->ap.ssid_len = bss_conf->ssid_len;
 728                memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len);
 729        }
 730
 731        cmd->ap.local_rates = cpu_to_le32(0xffffffff);
 732
 733        switch (wlvif->band) {
 734        case IEEE80211_BAND_2GHZ:
 735                cmd->band = RADIO_BAND_2_4GHZ;
 736                break;
 737        case IEEE80211_BAND_5GHZ:
 738                cmd->band = RADIO_BAND_5GHZ;
 739                break;
 740        default:
 741                wl1271_warning("ap start - unknown band: %d", (int)wlvif->band);
 742                cmd->band = RADIO_BAND_2_4GHZ;
 743                break;
 744        }
 745
 746        ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
 747        if (ret < 0) {
 748                wl1271_error("failed to initiate cmd role start ap");
 749                goto out_free_bcast;
 750        }
 751
 752        goto out_free;
 753
 754out_free_bcast:
 755        wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
 756
 757out_free_global:
 758        wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
 759
 760out_free:
 761        kfree(cmd);
 762
 763out:
 764        return ret;
 765}
 766
 767int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 768{
 769        struct wl12xx_cmd_role_stop *cmd;
 770        int ret;
 771
 772        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 773        if (!cmd) {
 774                ret = -ENOMEM;
 775                goto out;
 776        }
 777
 778        wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id);
 779
 780        cmd->role_id = wlvif->role_id;
 781
 782        ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
 783        if (ret < 0) {
 784                wl1271_error("failed to initiate cmd role stop ap");
 785                goto out_free;
 786        }
 787
 788        wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
 789        wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
 790
 791out_free:
 792        kfree(cmd);
 793
 794out:
 795        return ret;
 796}
 797
 798int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 799{
 800        struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
 801        struct wl12xx_cmd_role_start *cmd;
 802        struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
 803        int ret;
 804
 805        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 806        if (!cmd) {
 807                ret = -ENOMEM;
 808                goto out;
 809        }
 810
 811        wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id);
 812
 813        cmd->role_id = wlvif->role_id;
 814        if (wlvif->band == IEEE80211_BAND_5GHZ)
 815                cmd->band = WL12XX_BAND_5GHZ;
 816        cmd->channel = wlvif->channel;
 817        cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
 818        cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int);
 819        cmd->ibss.dtim_interval = bss_conf->dtim_period;
 820        cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY;
 821        cmd->ibss.ssid_len = wlvif->ssid_len;
 822        memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len);
 823        memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN);
 824        cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set);
 825
 826        if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
 827                ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
 828                if (ret)
 829                        goto out_free;
 830        }
 831        cmd->ibss.hlid = wlvif->sta.hlid;
 832        cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set);
 833
 834        wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
 835                     "basic_rate_set: 0x%x, remote_rates: 0x%x",
 836                     wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
 837                     wlvif->basic_rate_set, wlvif->rate_set);
 838
 839        wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM",
 840                     vif->bss_conf.bssid);
 841
 842        ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
 843        if (ret < 0) {
 844                wl1271_error("failed to initiate cmd role enable");
 845                goto err_hlid;
 846        }
 847
 848        goto out_free;
 849
 850err_hlid:
 851        /* clear links on error. */
 852        wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
 853
 854out_free:
 855        kfree(cmd);
 856
 857out:
 858        return ret;
 859}
 860
 861
 862/**
 863 * send test command to firmware
 864 *
 865 * @wl: wl struct
 866 * @buf: buffer containing the command, with all headers, must work with dma
 867 * @len: length of the buffer
 868 * @answer: is answer needed
 869 */
 870int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
 871{
 872        int ret;
 873        size_t res_len = 0;
 874
 875        wl1271_debug(DEBUG_CMD, "cmd test");
 876
 877        if (answer)
 878                res_len = buf_len;
 879
 880        ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
 881
 882        if (ret < 0) {
 883                wl1271_warning("TEST command failed");
 884                return ret;
 885        }
 886
 887        return ret;
 888}
 889
 890/**
 891 * read acx from firmware
 892 *
 893 * @wl: wl struct
 894 * @id: acx id
 895 * @buf: buffer for the response, including all headers, must work with dma
 896 * @len: length of buf
 897 */
 898int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len)
 899{
 900        struct acx_header *acx = buf;
 901        int ret;
 902
 903        wl1271_debug(DEBUG_CMD, "cmd interrogate");
 904
 905        acx->id = cpu_to_le16(id);
 906
 907        /* payload length, does not include any headers */
 908        acx->len = cpu_to_le16(len - sizeof(*acx));
 909
 910        ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len);
 911        if (ret < 0)
 912                wl1271_error("INTERROGATE command failed");
 913
 914        return ret;
 915}
 916
 917/**
 918 * write acx value to firmware
 919 *
 920 * @wl: wl struct
 921 * @id: acx id
 922 * @buf: buffer containing acx, including all headers, must work with dma
 923 * @len: length of buf
 924 */
 925int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
 926{
 927        struct acx_header *acx = buf;
 928        int ret;
 929
 930        wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id);
 931
 932        acx->id = cpu_to_le16(id);
 933
 934        /* payload length, does not include any headers */
 935        acx->len = cpu_to_le16(len - sizeof(*acx));
 936
 937        ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len, 0);
 938        if (ret < 0) {
 939                wl1271_warning("CONFIGURE command NOK");
 940                return ret;
 941        }
 942
 943        return 0;
 944}
 945
 946int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
 947{
 948        struct cmd_enabledisable_path *cmd;
 949        int ret;
 950        u16 cmd_rx, cmd_tx;
 951
 952        wl1271_debug(DEBUG_CMD, "cmd data path");
 953
 954        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 955        if (!cmd) {
 956                ret = -ENOMEM;
 957                goto out;
 958        }
 959
 960        /* the channel here is only used for calibration, so hardcoded to 1 */
 961        cmd->channel = 1;
 962
 963        if (enable) {
 964                cmd_rx = CMD_ENABLE_RX;
 965                cmd_tx = CMD_ENABLE_TX;
 966        } else {
 967                cmd_rx = CMD_DISABLE_RX;
 968                cmd_tx = CMD_DISABLE_TX;
 969        }
 970
 971        ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
 972        if (ret < 0) {
 973                wl1271_error("rx %s cmd for channel %d failed",
 974                             enable ? "start" : "stop", cmd->channel);
 975                goto out;
 976        }
 977
 978        wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
 979                     enable ? "start" : "stop", cmd->channel);
 980
 981        ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
 982        if (ret < 0) {
 983                wl1271_error("tx %s cmd for channel %d failed",
 984                             enable ? "start" : "stop", cmd->channel);
 985                goto out;
 986        }
 987
 988        wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
 989                     enable ? "start" : "stop", cmd->channel);
 990
 991out:
 992        kfree(cmd);
 993        return ret;
 994}
 995
 996int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 997                       u8 ps_mode)
 998{
 999        struct wl1271_cmd_ps_params *ps_params = NULL;
1000        int ret = 0;
1001
1002        wl1271_debug(DEBUG_CMD, "cmd set ps mode");
1003
1004        ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
1005        if (!ps_params) {
1006                ret = -ENOMEM;
1007                goto out;
1008        }
1009
1010        ps_params->role_id = wlvif->role_id;
1011        ps_params->ps_mode = ps_mode;
1012
1013        ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
1014                              sizeof(*ps_params), 0);
1015        if (ret < 0) {
1016                wl1271_error("cmd set_ps_mode failed");
1017                goto out;
1018        }
1019
1020out:
1021        kfree(ps_params);
1022        return ret;
1023}
1024
1025int wl1271_cmd_template_set(struct wl1271 *wl, u16 template_id,
1026                            void *buf, size_t buf_len, int index, u32 rates)
1027{
1028        struct wl1271_cmd_template_set *cmd;
1029        int ret = 0;
1030
1031        wl1271_debug(DEBUG_CMD, "cmd template_set %d", template_id);
1032
1033        WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
1034        buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
1035
1036        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1037        if (!cmd) {
1038                ret = -ENOMEM;
1039                goto out;
1040        }
1041
1042        cmd->len = cpu_to_le16(buf_len);
1043        cmd->template_type = template_id;
1044        cmd->enabled_rates = cpu_to_le32(rates);
1045        cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit;
1046        cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit;
1047        cmd->index = index;
1048
1049        if (buf)
1050                memcpy(cmd->template_data, buf, buf_len);
1051
1052        ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
1053        if (ret < 0) {
1054                wl1271_warning("cmd set_template failed: %d", ret);
1055                goto out_free;
1056        }
1057
1058out_free:
1059        kfree(cmd);
1060
1061out:
1062        return ret;
1063}
1064
1065int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1066{
1067        struct sk_buff *skb = NULL;
1068        int size;
1069        void *ptr;
1070        int ret = -ENOMEM;
1071
1072
1073        if (wlvif->bss_type == BSS_TYPE_IBSS) {
1074                size = sizeof(struct wl12xx_null_data_template);
1075                ptr = NULL;
1076        } else {
1077                skb = ieee80211_nullfunc_get(wl->hw,
1078                                             wl12xx_wlvif_to_vif(wlvif));
1079                if (!skb)
1080                        goto out;
1081                size = skb->len;
1082                ptr = skb->data;
1083        }
1084
1085        ret = wl1271_cmd_template_set(wl, CMD_TEMPL_NULL_DATA, ptr, size, 0,
1086                                      wlvif->basic_rate);
1087
1088out:
1089        dev_kfree_skb(skb);
1090        if (ret)
1091                wl1271_warning("cmd buld null data failed %d", ret);
1092
1093        return ret;
1094
1095}
1096
1097int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl,
1098                                   struct wl12xx_vif *wlvif)
1099{
1100        struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1101        struct sk_buff *skb = NULL;
1102        int ret = -ENOMEM;
1103
1104        skb = ieee80211_nullfunc_get(wl->hw, vif);
1105        if (!skb)
1106                goto out;
1107
1108        ret = wl1271_cmd_template_set(wl, CMD_TEMPL_KLV,
1109                                      skb->data, skb->len,
1110                                      CMD_TEMPL_KLV_IDX_NULL_DATA,
1111                                      wlvif->basic_rate);
1112
1113out:
1114        dev_kfree_skb(skb);
1115        if (ret)
1116                wl1271_warning("cmd build klv null data failed %d", ret);
1117
1118        return ret;
1119
1120}
1121
1122int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1123                             u16 aid)
1124{
1125        struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1126        struct sk_buff *skb;
1127        int ret = 0;
1128
1129        skb = ieee80211_pspoll_get(wl->hw, vif);
1130        if (!skb)
1131                goto out;
1132
1133        ret = wl1271_cmd_template_set(wl, CMD_TEMPL_PS_POLL, skb->data,
1134                                      skb->len, 0, wlvif->basic_rate_set);
1135
1136out:
1137        dev_kfree_skb(skb);
1138        return ret;
1139}
1140
1141int wl1271_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1142                               const u8 *ssid, size_t ssid_len,
1143                               const u8 *ie, size_t ie_len, u8 band)
1144{
1145        struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1146        struct sk_buff *skb;
1147        int ret;
1148        u32 rate;
1149
1150        skb = ieee80211_probereq_get(wl->hw, vif, ssid, ssid_len,
1151                                     ie, ie_len);
1152        if (!skb) {
1153                ret = -ENOMEM;
1154                goto out;
1155        }
1156
1157        wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len);
1158
1159        rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]);
1160        if (band == IEEE80211_BAND_2GHZ)
1161                ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
1162                                              skb->data, skb->len, 0, rate);
1163        else
1164                ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_5,
1165                                              skb->data, skb->len, 0, rate);
1166
1167out:
1168        dev_kfree_skb(skb);
1169        return ret;
1170}
1171
1172struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl,
1173                                              struct wl12xx_vif *wlvif,
1174                                              struct sk_buff *skb)
1175{
1176        struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1177        int ret;
1178        u32 rate;
1179
1180        if (!skb)
1181                skb = ieee80211_ap_probereq_get(wl->hw, vif);
1182        if (!skb)
1183                goto out;
1184
1185        wl1271_dump(DEBUG_SCAN, "AP PROBE REQ: ", skb->data, skb->len);
1186
1187        rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]);
1188        if (wlvif->band == IEEE80211_BAND_2GHZ)
1189                ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
1190                                              skb->data, skb->len, 0, rate);
1191        else
1192                ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_5,
1193                                              skb->data, skb->len, 0, rate);
1194
1195        if (ret < 0)
1196                wl1271_error("Unable to set ap probe request template.");
1197
1198out:
1199        return skb;
1200}
1201
1202int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1203                             __be32 ip_addr)
1204{
1205        int ret;
1206        struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1207        struct wl12xx_arp_rsp_template tmpl;
1208        struct ieee80211_hdr_3addr *hdr;
1209        struct arphdr *arp_hdr;
1210
1211        memset(&tmpl, 0, sizeof(tmpl));
1212
1213        /* mac80211 header */
1214        hdr = &tmpl.hdr;
1215        hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1216                                         IEEE80211_STYPE_DATA |
1217                                         IEEE80211_FCTL_TODS);
1218        memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN);
1219        memcpy(hdr->addr2, vif->addr, ETH_ALEN);
1220        memset(hdr->addr3, 0xff, ETH_ALEN);
1221
1222        /* llc layer */
1223        memcpy(tmpl.llc_hdr, rfc1042_header, sizeof(rfc1042_header));
1224        tmpl.llc_type = cpu_to_be16(ETH_P_ARP);
1225
1226        /* arp header */
1227        arp_hdr = &tmpl.arp_hdr;
1228        arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER);
1229        arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP);
1230        arp_hdr->ar_hln = ETH_ALEN;
1231        arp_hdr->ar_pln = 4;
1232        arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY);
1233
1234        /* arp payload */
1235        memcpy(tmpl.sender_hw, vif->addr, ETH_ALEN);
1236        tmpl.sender_ip = ip_addr;
1237
1238        ret = wl1271_cmd_template_set(wl, CMD_TEMPL_ARP_RSP,
1239                                      &tmpl, sizeof(tmpl), 0,
1240                                      wlvif->basic_rate);
1241
1242        return ret;
1243}
1244
1245int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif)
1246{
1247        struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
1248        struct ieee80211_qos_hdr template;
1249
1250        memset(&template, 0, sizeof(template));
1251
1252        memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN);
1253        memcpy(template.addr2, vif->addr, ETH_ALEN);
1254        memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN);
1255
1256        template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1257                                             IEEE80211_STYPE_QOS_NULLFUNC |
1258                                             IEEE80211_FCTL_TODS);
1259
1260        /* FIXME: not sure what priority to use here */
1261        template.qos_ctrl = cpu_to_le16(0);
1262
1263        return wl1271_cmd_template_set(wl, CMD_TEMPL_QOS_NULL_DATA, &template,
1264                                       sizeof(template), 0,
1265                                       wlvif->basic_rate);
1266}
1267
1268int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid)
1269{
1270        struct wl1271_cmd_set_keys *cmd;
1271        int ret = 0;
1272
1273        wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
1274
1275        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1276        if (!cmd) {
1277                ret = -ENOMEM;
1278                goto out;
1279        }
1280
1281        cmd->hlid = hlid;
1282        cmd->key_id = id;
1283        cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1284        cmd->key_action = cpu_to_le16(KEY_SET_ID);
1285        cmd->key_type = KEY_WEP;
1286
1287        ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1288        if (ret < 0) {
1289                wl1271_warning("cmd set_default_wep_key failed: %d", ret);
1290                goto out;
1291        }
1292
1293out:
1294        kfree(cmd);
1295
1296        return ret;
1297}
1298
1299int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1300                       u16 action, u8 id, u8 key_type,
1301                       u8 key_size, const u8 *key, const u8 *addr,
1302                       u32 tx_seq_32, u16 tx_seq_16)
1303{
1304        struct wl1271_cmd_set_keys *cmd;
1305        int ret = 0;
1306
1307        /* hlid might have already been deleted */
1308        if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)
1309                return 0;
1310
1311        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1312        if (!cmd) {
1313                ret = -ENOMEM;
1314                goto out;
1315        }
1316
1317        cmd->hlid = wlvif->sta.hlid;
1318
1319        if (key_type == KEY_WEP)
1320                cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1321        else if (is_broadcast_ether_addr(addr))
1322                cmd->lid_key_type = BROADCAST_LID_TYPE;
1323        else
1324                cmd->lid_key_type = UNICAST_LID_TYPE;
1325
1326        cmd->key_action = cpu_to_le16(action);
1327        cmd->key_size = key_size;
1328        cmd->key_type = key_type;
1329
1330        cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1331        cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1332
1333        cmd->key_id = id;
1334
1335        if (key_type == KEY_TKIP) {
1336                /*
1337                 * We get the key in the following form:
1338                 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1339                 * but the target is expecting:
1340                 * TKIP - RX MIC - TX MIC
1341                 */
1342                memcpy(cmd->key, key, 16);
1343                memcpy(cmd->key + 16, key + 24, 8);
1344                memcpy(cmd->key + 24, key + 16, 8);
1345
1346        } else {
1347                memcpy(cmd->key, key, key_size);
1348        }
1349
1350        wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
1351
1352        ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1353        if (ret < 0) {
1354                wl1271_warning("could not set keys");
1355        goto out;
1356        }
1357
1358out:
1359        kfree(cmd);
1360
1361        return ret;
1362}
1363
1364/*
1365 * TODO: merge with sta/ibss into 1 set_key function.
1366 * note there are slight diffs
1367 */
1368int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1369                          u16 action, u8 id, u8 key_type,
1370                          u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
1371                          u16 tx_seq_16)
1372{
1373        struct wl1271_cmd_set_keys *cmd;
1374        int ret = 0;
1375        u8 lid_type;
1376
1377        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1378        if (!cmd)
1379                return -ENOMEM;
1380
1381        if (hlid == wlvif->ap.bcast_hlid) {
1382                if (key_type == KEY_WEP)
1383                        lid_type = WEP_DEFAULT_LID_TYPE;
1384                else
1385                        lid_type = BROADCAST_LID_TYPE;
1386        } else {
1387                lid_type = UNICAST_LID_TYPE;
1388        }
1389
1390        wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d"
1391                     " hlid: %d", (int)action, (int)id, (int)lid_type,
1392                     (int)key_type, (int)hlid);
1393
1394        cmd->lid_key_type = lid_type;
1395        cmd->hlid = hlid;
1396        cmd->key_action = cpu_to_le16(action);
1397        cmd->key_size = key_size;
1398        cmd->key_type = key_type;
1399        cmd->key_id = id;
1400        cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1401        cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1402
1403        if (key_type == KEY_TKIP) {
1404                /*
1405                 * We get the key in the following form:
1406                 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1407                 * but the target is expecting:
1408                 * TKIP - RX MIC - TX MIC
1409                 */
1410                memcpy(cmd->key, key, 16);
1411                memcpy(cmd->key + 16, key + 24, 8);
1412                memcpy(cmd->key + 24, key + 16, 8);
1413        } else {
1414                memcpy(cmd->key, key, key_size);
1415        }
1416
1417        wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd));
1418
1419        ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1420        if (ret < 0) {
1421                wl1271_warning("could not set ap keys");
1422                goto out;
1423        }
1424
1425out:
1426        kfree(cmd);
1427        return ret;
1428}
1429
1430int wl12xx_cmd_set_peer_state(struct wl1271 *wl, u8 hlid)
1431{
1432        struct wl12xx_cmd_set_peer_state *cmd;
1433        int ret = 0;
1434
1435        wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid);
1436
1437        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1438        if (!cmd) {
1439                ret = -ENOMEM;
1440                goto out;
1441        }
1442
1443        cmd->hlid = hlid;
1444        cmd->state = WL1271_CMD_STA_STATE_CONNECTED;
1445
1446        ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0);
1447        if (ret < 0) {
1448                wl1271_error("failed to send set peer state command");
1449                goto out_free;
1450        }
1451
1452out_free:
1453        kfree(cmd);
1454
1455out:
1456        return ret;
1457}
1458
1459int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1460                        struct ieee80211_sta *sta, u8 hlid)
1461{
1462        struct wl12xx_cmd_add_peer *cmd;
1463        int i, ret;
1464        u32 sta_rates;
1465
1466        wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid);
1467
1468        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1469        if (!cmd) {
1470                ret = -ENOMEM;
1471                goto out;
1472        }
1473
1474        memcpy(cmd->addr, sta->addr, ETH_ALEN);
1475        cmd->bss_index = WL1271_AP_BSS_INDEX;
1476        cmd->aid = sta->aid;
1477        cmd->hlid = hlid;
1478        cmd->sp_len = sta->max_sp;
1479        cmd->wmm = sta->wme ? 1 : 0;
1480
1481        for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++)
1482                if (sta->wme && (sta->uapsd_queues & BIT(i)))
1483                        cmd->psd_type[i] = WL1271_PSD_UPSD_TRIGGER;
1484                else
1485                        cmd->psd_type[i] = WL1271_PSD_LEGACY;
1486
1487        sta_rates = sta->supp_rates[wlvif->band];
1488        if (sta->ht_cap.ht_supported)
1489                sta_rates |= sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET;
1490
1491        cmd->supported_rates =
1492                cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates,
1493                                                        wlvif->band));
1494
1495        wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x",
1496                     cmd->supported_rates, sta->uapsd_queues);
1497
1498        ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0);
1499        if (ret < 0) {
1500                wl1271_error("failed to initiate cmd add peer");
1501                goto out_free;
1502        }
1503
1504out_free:
1505        kfree(cmd);
1506
1507out:
1508        return ret;
1509}
1510
1511int wl12xx_cmd_remove_peer(struct wl1271 *wl, u8 hlid)
1512{
1513        struct wl12xx_cmd_remove_peer *cmd;
1514        int ret;
1515
1516        wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid);
1517
1518        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1519        if (!cmd) {
1520                ret = -ENOMEM;
1521                goto out;
1522        }
1523
1524        cmd->hlid = hlid;
1525        /* We never send a deauth, mac80211 is in charge of this */
1526        cmd->reason_opcode = 0;
1527        cmd->send_deauth_flag = 0;
1528
1529        ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0);
1530        if (ret < 0) {
1531                wl1271_error("failed to initiate cmd remove peer");
1532                goto out_free;
1533        }
1534
1535        /*
1536         * We are ok with a timeout here. The event is sometimes not sent
1537         * due to a firmware bug.
1538         */
1539        wl1271_cmd_wait_for_event_or_timeout(wl,
1540                                             PEER_REMOVE_COMPLETE_EVENT_ID);
1541
1542out_free:
1543        kfree(cmd);
1544
1545out:
1546        return ret;
1547}
1548
1549int wl12xx_cmd_config_fwlog(struct wl1271 *wl)
1550{
1551        struct wl12xx_cmd_config_fwlog *cmd;
1552        int ret = 0;
1553
1554        wl1271_debug(DEBUG_CMD, "cmd config firmware logger");
1555
1556        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1557        if (!cmd) {
1558                ret = -ENOMEM;
1559                goto out;
1560        }
1561
1562        cmd->logger_mode = wl->conf.fwlog.mode;
1563        cmd->log_severity = wl->conf.fwlog.severity;
1564        cmd->timestamp = wl->conf.fwlog.timestamp;
1565        cmd->output = wl->conf.fwlog.output;
1566        cmd->threshold = wl->conf.fwlog.threshold;
1567
1568        ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0);
1569        if (ret < 0) {
1570                wl1271_error("failed to send config firmware logger command");
1571                goto out_free;
1572        }
1573
1574out_free:
1575        kfree(cmd);
1576
1577out:
1578        return ret;
1579}
1580
1581int wl12xx_cmd_start_fwlog(struct wl1271 *wl)
1582{
1583        struct wl12xx_cmd_start_fwlog *cmd;
1584        int ret = 0;
1585
1586        wl1271_debug(DEBUG_CMD, "cmd start firmware logger");
1587
1588        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1589        if (!cmd) {
1590                ret = -ENOMEM;
1591                goto out;
1592        }
1593
1594        ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0);
1595        if (ret < 0) {
1596                wl1271_error("failed to send start firmware logger command");
1597                goto out_free;
1598        }
1599
1600out_free:
1601        kfree(cmd);
1602
1603out:
1604        return ret;
1605}
1606
1607int wl12xx_cmd_stop_fwlog(struct wl1271 *wl)
1608{
1609        struct wl12xx_cmd_stop_fwlog *cmd;
1610        int ret = 0;
1611
1612        wl1271_debug(DEBUG_CMD, "cmd stop firmware logger");
1613
1614        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1615        if (!cmd) {
1616                ret = -ENOMEM;
1617                goto out;
1618        }
1619
1620        ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0);
1621        if (ret < 0) {
1622                wl1271_error("failed to send stop firmware logger command");
1623                goto out_free;
1624        }
1625
1626out_free:
1627        kfree(cmd);
1628
1629out:
1630        return ret;
1631}
1632
1633static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1634                          u8 role_id)
1635{
1636        struct wl12xx_cmd_roc *cmd;
1637        int ret = 0;
1638
1639        wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", wlvif->channel, role_id);
1640
1641        if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID))
1642                return -EINVAL;
1643
1644        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1645        if (!cmd) {
1646                ret = -ENOMEM;
1647                goto out;
1648        }
1649
1650        cmd->role_id = role_id;
1651        cmd->channel = wlvif->channel;
1652        switch (wlvif->band) {
1653        case IEEE80211_BAND_2GHZ:
1654                cmd->band = RADIO_BAND_2_4GHZ;
1655                break;
1656        case IEEE80211_BAND_5GHZ:
1657                cmd->band = RADIO_BAND_5GHZ;
1658                break;
1659        default:
1660                wl1271_error("roc - unknown band: %d", (int)wlvif->band);
1661                ret = -EINVAL;
1662                goto out_free;
1663        }
1664
1665
1666        ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0);
1667        if (ret < 0) {
1668                wl1271_error("failed to send ROC command");
1669                goto out_free;
1670        }
1671
1672out_free:
1673        kfree(cmd);
1674
1675out:
1676        return ret;
1677}
1678
1679static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id)
1680{
1681        struct wl12xx_cmd_croc *cmd;
1682        int ret = 0;
1683
1684        wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id);
1685
1686        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1687        if (!cmd) {
1688                ret = -ENOMEM;
1689                goto out;
1690        }
1691        cmd->role_id = role_id;
1692
1693        ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd,
1694                              sizeof(*cmd), 0);
1695        if (ret < 0) {
1696                wl1271_error("failed to send ROC command");
1697                goto out_free;
1698        }
1699
1700out_free:
1701        kfree(cmd);
1702
1703out:
1704        return ret;
1705}
1706
1707int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id)
1708{
1709        int ret = 0;
1710
1711        if (WARN_ON(test_bit(role_id, wl->roc_map)))
1712                return 0;
1713
1714        ret = wl12xx_cmd_roc(wl, wlvif, role_id);
1715        if (ret < 0)
1716                goto out;
1717
1718        ret = wl1271_cmd_wait_for_event(wl,
1719                                        REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID);
1720        if (ret < 0) {
1721                wl1271_error("cmd roc event completion error");
1722                goto out;
1723        }
1724
1725        __set_bit(role_id, wl->roc_map);
1726out:
1727        return ret;
1728}
1729
1730int wl12xx_croc(struct wl1271 *wl, u8 role_id)
1731{
1732        int ret = 0;
1733
1734        if (WARN_ON(!test_bit(role_id, wl->roc_map)))
1735                return 0;
1736
1737        ret = wl12xx_cmd_croc(wl, role_id);
1738        if (ret < 0)
1739                goto out;
1740
1741        __clear_bit(role_id, wl->roc_map);
1742out:
1743        return ret;
1744}
1745
1746int wl12xx_cmd_channel_switch(struct wl1271 *wl,
1747                              struct ieee80211_channel_switch *ch_switch)
1748{
1749        struct wl12xx_cmd_channel_switch *cmd;
1750        int ret;
1751
1752        wl1271_debug(DEBUG_ACX, "cmd channel switch");
1753
1754        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1755        if (!cmd) {
1756                ret = -ENOMEM;
1757                goto out;
1758        }
1759
1760        cmd->channel = ch_switch->channel->hw_value;
1761        cmd->switch_time = ch_switch->count;
1762        cmd->tx_suspend = ch_switch->block_tx;
1763        cmd->flush = 0; /* this value is ignored by the FW */
1764
1765        ret = wl1271_cmd_send(wl, CMD_CHANNEL_SWITCH, cmd, sizeof(*cmd), 0);
1766        if (ret < 0) {
1767                wl1271_error("failed to send channel switch command");
1768                goto out_free;
1769        }
1770
1771out_free:
1772        kfree(cmd);
1773
1774out:
1775        return ret;
1776}
1777
1778int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl)
1779{
1780        struct wl12xx_cmd_stop_channel_switch *cmd;
1781        int ret;
1782
1783        wl1271_debug(DEBUG_ACX, "cmd stop channel switch");
1784
1785        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1786        if (!cmd) {
1787                ret = -ENOMEM;
1788                goto out;
1789        }
1790
1791        ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0);
1792        if (ret < 0) {
1793                wl1271_error("failed to stop channel switch command");
1794                goto out_free;
1795        }
1796
1797out_free:
1798        kfree(cmd);
1799
1800out:
1801        return ret;
1802}
1803
1804/* start dev role and roc on its channel */
1805int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1806{
1807        int ret;
1808
1809        if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
1810                      wlvif->bss_type == BSS_TYPE_IBSS)))
1811                return -EINVAL;
1812
1813        ret = wl12xx_cmd_role_start_dev(wl, wlvif);
1814        if (ret < 0)
1815                goto out;
1816
1817        ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id);
1818        if (ret < 0)
1819                goto out_stop;
1820
1821        return 0;
1822
1823out_stop:
1824        wl12xx_cmd_role_stop_dev(wl, wlvif);
1825out:
1826        return ret;
1827}
1828
1829/* croc dev hlid, and stop the role */
1830int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1831{
1832        int ret;
1833
1834        if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
1835                      wlvif->bss_type == BSS_TYPE_IBSS)))
1836                return -EINVAL;
1837
1838        /* flush all pending packets */
1839        wl1271_tx_work_locked(wl);
1840
1841        if (test_bit(wlvif->dev_role_id, wl->roc_map)) {
1842                ret = wl12xx_croc(wl, wlvif->dev_role_id);
1843                if (ret < 0)
1844                        goto out;
1845        }
1846
1847        ret = wl12xx_cmd_role_stop_dev(wl, wlvif);
1848        if (ret < 0)
1849                goto out;
1850out:
1851        return ret;
1852}
1853
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