drivers/net/wireless/wl12xx/cmd.c

   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/crc7.h>
  27 #include <linux/spi/spi.h>
  28 #include <linux/etherdevice.h>
  29 #include <linux/ieee80211.h>
  30 #include <linux/slab.h>
  31
  32 #include "wl12xx.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  */
  51 int 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
 107 fail:
 108         WARN_ON(1);
 109         ieee80211_queue_work(wl->hw, &wl->recovery_work);
 110         return ret;
 111 }
 112
 113 int 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
 161 out:
 162         kfree(gen_parms);
 163         return ret;
 164 }
 165
 166 int 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
 215 out:
 216         kfree(gen_parms);
 217         return ret;
 218 }
 219
 220 int 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
 262 int 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
 306 int 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  */
 343 static 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
 371 static 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                 ieee80211_queue_work(wl->hw, &wl->recovery_work);
 378                 return ret;
 379         }
 380
 381         return 0;
 382 }
 383
 384 int wl1271_cmd_join(struct wl1271 *wl, u8 bss_type)
 385 {
 386         struct wl1271_cmd_join *join;
 387         int ret, i;
 388         u8 *bssid;
 389
 390         join = kzalloc(sizeof(*join), GFP_KERNEL);
 391         if (!join) {
 392                 ret = -ENOMEM;
 393                 goto out;
 394         }
 395
 396         wl1271_debug(DEBUG_CMD, "cmd join");
 397
 398         /* Reverse order BSSID */
 399         bssid = (u8 *) &join->bssid_lsb;
 400         for (i = 0; i < ETH_ALEN; i++)
 401                 bssid[i] = wl->bssid[ETH_ALEN - i - 1];
 402
 403         join->rx_config_options = cpu_to_le32(wl->rx_config);
 404         join->rx_filter_options = cpu_to_le32(wl->rx_filter);
 405         join->bss_type = bss_type;
 406         join->basic_rate_set = cpu_to_le32(wl->basic_rate_set);
 407         join->supported_rate_set = cpu_to_le32(wl->rate_set);
 408
 409         if (wl->band == IEEE80211_BAND_5GHZ)
 410                 join->bss_type |= WL1271_JOIN_CMD_BSS_TYPE_5GHZ;
 411
 412         join->beacon_interval = cpu_to_le16(wl->beacon_int);
 413         join->dtim_interval = WL1271_DEFAULT_DTIM_PERIOD;
 414
 415         join->channel = wl->channel;
 416         join->ssid_len = wl->ssid_len;
 417         memcpy(join->ssid, wl->ssid, wl->ssid_len);
 418
 419         join->ctrl |= wl->session_counter << WL1271_JOIN_CMD_TX_SESSION_OFFSET;
 420
 421         /* reset TX security counters */
 422         wl->tx_security_last_seq = 0;
 423         wl->tx_security_seq = 0;
 424
 425         wl1271_debug(DEBUG_CMD, "cmd join: basic_rate_set=0x%x, rate_set=0x%x",
 426                 join->basic_rate_set, join->supported_rate_set);
 427
 428         ret = wl1271_cmd_send(wl, CMD_START_JOIN, join, sizeof(*join), 0);
 429         if (ret < 0) {
 430                 wl1271_error("failed to initiate cmd join");
 431                 goto out_free;
 432         }
 433
 434         ret = wl1271_cmd_wait_for_event(wl, JOIN_EVENT_COMPLETE_ID);
 435         if (ret < 0)
 436                 wl1271_error("cmd join event completion error");
 437
 438 out_free:
 439         kfree(join);
 440
 441 out:
 442         return ret;
 443 }
 444
 445 /**
 446  * send test command to firmware
 447  *
 448  * @wl: wl struct
 449  * @buf: buffer containing the command, with all headers, must work with dma
 450  * @len: length of the buffer
 451  * @answer: is answer needed
 452  */
 453 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
 454 {
 455         int ret;
 456         size_t res_len = 0;
 457
 458         wl1271_debug(DEBUG_CMD, "cmd test");
 459
 460         if (answer)
 461                 res_len = buf_len;
 462
 463         ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
 464
 465         if (ret < 0) {
 466                 wl1271_warning("TEST command failed");
 467                 return ret;
 468         }
 469
 470         return ret;
 471 }
 472
 473 /**
 474  * read acx from firmware
 475  *
 476  * @wl: wl struct
 477  * @id: acx id
 478  * @buf: buffer for the response, including all headers, must work with dma
 479  * @len: length of buf
 480  */
 481 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len)
 482 {
 483         struct acx_header *acx = buf;
 484         int ret;
 485
 486         wl1271_debug(DEBUG_CMD, "cmd interrogate");
 487
 488         acx->id = cpu_to_le16(id);
 489
 490         /* payload length, does not include any headers */
 491         acx->len = cpu_to_le16(len - sizeof(*acx));
 492
 493         ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len);
 494         if (ret < 0)
 495                 wl1271_error("INTERROGATE command failed");
 496
 497         return ret;
 498 }
 499
 500 /**
 501  * write acx value to firmware
 502  *
 503  * @wl: wl struct
 504  * @id: acx id
 505  * @buf: buffer containing acx, including all headers, must work with dma
 506  * @len: length of buf
 507  */
 508 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
 509 {
 510         struct acx_header *acx = buf;
 511         int ret;
 512
 513         wl1271_debug(DEBUG_CMD, "cmd configure");
 514
 515         acx->id = cpu_to_le16(id);
 516
 517         /* payload length, does not include any headers */
 518         acx->len = cpu_to_le16(len - sizeof(*acx));
 519
 520         ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len, 0);
 521         if (ret < 0) {
 522                 wl1271_warning("CONFIGURE command NOK");
 523                 return ret;
 524         }
 525
 526         return 0;
 527 }
 528
 529 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
 530 {
 531         struct cmd_enabledisable_path *cmd;
 532         int ret;
 533         u16 cmd_rx, cmd_tx;
 534
 535         wl1271_debug(DEBUG_CMD, "cmd data path");
 536
 537         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 538         if (!cmd) {
 539                 ret = -ENOMEM;
 540                 goto out;
 541         }
 542
 543         /* the channel here is only used for calibration, so hardcoded to 1 */
 544         cmd->channel = 1;
 545
 546         if (enable) {
 547                 cmd_rx = CMD_ENABLE_RX;
 548                 cmd_tx = CMD_ENABLE_TX;
 549         } else {
 550                 cmd_rx = CMD_DISABLE_RX;
 551                 cmd_tx = CMD_DISABLE_TX;
 552         }
 553
 554         ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
 555         if (ret < 0) {
 556                 wl1271_error("rx %s cmd for channel %d failed",
 557                              enable ? "start" : "stop", cmd->channel);
 558                 goto out;
 559         }
 560
 561         wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
 562                      enable ? "start" : "stop", cmd->channel);
 563
 564         ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
 565         if (ret < 0) {
 566                 wl1271_error("tx %s cmd for channel %d failed",
 567                              enable ? "start" : "stop", cmd->channel);
 568                 goto out;
 569         }
 570
 571         wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
 572                      enable ? "start" : "stop", cmd->channel);
 573
 574 out:
 575         kfree(cmd);
 576         return ret;
 577 }
 578
 579 int wl1271_cmd_ps_mode(struct wl1271 *wl, u8 ps_mode)
 580 {
 581         struct wl1271_cmd_ps_params *ps_params = NULL;
 582         int ret = 0;
 583
 584         wl1271_debug(DEBUG_CMD, "cmd set ps mode");
 585
 586         ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
 587         if (!ps_params) {
 588                 ret = -ENOMEM;
 589                 goto out;
 590         }
 591
 592         ps_params->ps_mode = ps_mode;
 593
 594         ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
 595                               sizeof(*ps_params), 0);
 596         if (ret < 0) {
 597                 wl1271_error("cmd set_ps_mode failed");
 598                 goto out;
 599         }
 600
 601 out:
 602         kfree(ps_params);
 603         return ret;
 604 }
 605
 606 int wl1271_cmd_template_set(struct wl1271 *wl, u16 template_id,
 607                             void *buf, size_t buf_len, int index, u32 rates)
 608 {
 609         struct wl1271_cmd_template_set *cmd;
 610         int ret = 0;
 611
 612         wl1271_debug(DEBUG_CMD, "cmd template_set %d", template_id);
 613
 614         WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
 615         buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
 616
 617         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 618         if (!cmd) {
 619                 ret = -ENOMEM;
 620                 goto out;
 621         }
 622
 623         cmd->len = cpu_to_le16(buf_len);
 624         cmd->template_type = template_id;
 625         cmd->enabled_rates = cpu_to_le32(rates);
 626         cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit;
 627         cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit;
 628         cmd->index = index;
 629
 630         if (buf)
 631                 memcpy(cmd->template_data, buf, buf_len);
 632
 633         ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
 634         if (ret < 0) {
 635                 wl1271_warning("cmd set_template failed: %d", ret);
 636                 goto out_free;
 637         }
 638
 639 out_free:
 640         kfree(cmd);
 641
 642 out:
 643         return ret;
 644 }
 645
 646 int wl1271_cmd_build_null_data(struct wl1271 *wl)
 647 {
 648         struct sk_buff *skb = NULL;
 649         int size;
 650         void *ptr;
 651         int ret = -ENOMEM;
 652
 653
 654         if (wl->bss_type == BSS_TYPE_IBSS) {
 655                 size = sizeof(struct wl12xx_null_data_template);
 656                 ptr = NULL;
 657         } else {
 658                 skb = ieee80211_nullfunc_get(wl->hw, wl->vif);
 659                 if (!skb)
 660                         goto out;
 661                 size = skb->len;
 662                 ptr = skb->data;
 663         }
 664
 665         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_NULL_DATA, ptr, size, 0,
 666                                       wl->basic_rate);
 667
 668 out:
 669         dev_kfree_skb(skb);
 670         if (ret)
 671                 wl1271_warning("cmd buld null data failed %d", ret);
 672
 673         return ret;
 674
 675 }
 676
 677 int wl1271_cmd_build_klv_null_data(struct wl1271 *wl)
 678 {
 679         struct sk_buff *skb = NULL;
 680         int ret = -ENOMEM;
 681
 682         skb = ieee80211_nullfunc_get(wl->hw, wl->vif);
 683         if (!skb)
 684                 goto out;
 685
 686         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_KLV,
 687                                       skb->data, skb->len,
 688                                       CMD_TEMPL_KLV_IDX_NULL_DATA,
 689                                       wl->basic_rate);
 690
 691 out:
 692         dev_kfree_skb(skb);
 693         if (ret)
 694                 wl1271_warning("cmd build klv null data failed %d", ret);
 695
 696         return ret;
 697
 698 }
 699
 700 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, u16 aid)
 701 {
 702         struct sk_buff *skb;
 703         int ret = 0;
 704
 705         skb = ieee80211_pspoll_get(wl->hw, wl->vif);
 706         if (!skb)
 707                 goto out;
 708
 709         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_PS_POLL, skb->data,
 710                                       skb->len, 0, wl->basic_rate_set);
 711
 712 out:
 713         dev_kfree_skb(skb);
 714         return ret;
 715 }
 716
 717 int wl1271_cmd_build_probe_req(struct wl1271 *wl,
 718                                const u8 *ssid, size_t ssid_len,
 719                                const u8 *ie, size_t ie_len, u8 band)
 720 {
 721         struct sk_buff *skb;
 722         int ret;
 723
 724         skb = ieee80211_probereq_get(wl->hw, wl->vif, ssid, ssid_len,
 725                                      ie, ie_len);
 726         if (!skb) {
 727                 ret = -ENOMEM;
 728                 goto out;
 729         }
 730
 731         wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len);
 732
 733         if (band == IEEE80211_BAND_2GHZ)
 734                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
 735                                               skb->data, skb->len, 0,
 736                                               wl->conf.tx.basic_rate);
 737         else
 738                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_5,
 739                                               skb->data, skb->len, 0,
 740                                               wl->conf.tx.basic_rate_5);
 741
 742 out:
 743         dev_kfree_skb(skb);
 744         return ret;
 745 }
 746
 747 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl,
 748                                               struct sk_buff *skb)
 749 {
 750         int ret;
 751
 752         if (!skb)
 753                 skb = ieee80211_ap_probereq_get(wl->hw, wl->vif);
 754         if (!skb)
 755                 goto out;
 756
 757         wl1271_dump(DEBUG_SCAN, "AP PROBE REQ: ", skb->data, skb->len);
 758
 759         if (wl->band == IEEE80211_BAND_2GHZ)
 760                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
 761                                               skb->data, skb->len, 0,
 762                                               wl->conf.tx.basic_rate);
 763         else
 764                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_5,
 765                                               skb->data, skb->len, 0,
 766                                               wl->conf.tx.basic_rate_5);
 767
 768         if (ret < 0)
 769                 wl1271_error("Unable to set ap probe request template.");
 770
 771 out:
 772         return skb;
 773 }
 774
 775 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, __be32 ip_addr)
 776 {
 777         int ret;
 778         struct wl12xx_arp_rsp_template tmpl;
 779         struct ieee80211_hdr_3addr *hdr;
 780         struct arphdr *arp_hdr;
 781
 782         memset(&tmpl, 0, sizeof(tmpl));
 783
 784         /* mac80211 header */
 785         hdr = &tmpl.hdr;
 786         hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
 787                                          IEEE80211_STYPE_DATA |
 788                                          IEEE80211_FCTL_TODS);
 789         memcpy(hdr->addr1, wl->vif->bss_conf.bssid, ETH_ALEN);
 790         memcpy(hdr->addr2, wl->vif->addr, ETH_ALEN);
 791         memset(hdr->addr3, 0xff, ETH_ALEN);
 792
 793         /* llc layer */
 794         memcpy(tmpl.llc_hdr, rfc1042_header, sizeof(rfc1042_header));
 795         tmpl.llc_type = cpu_to_be16(ETH_P_ARP);
 796
 797         /* arp header */
 798         arp_hdr = &tmpl.arp_hdr;
 799         arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER);
 800         arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP);
 801         arp_hdr->ar_hln = ETH_ALEN;
 802         arp_hdr->ar_pln = 4;
 803         arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY);
 804
 805         /* arp payload */
 806         memcpy(tmpl.sender_hw, wl->vif->addr, ETH_ALEN);
 807         tmpl.sender_ip = ip_addr;
 808
 809         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_ARP_RSP,
 810                                       &tmpl, sizeof(tmpl), 0,
 811                                       wl->basic_rate);
 812
 813         return ret;
 814 }
 815
 816 int wl1271_build_qos_null_data(struct wl1271 *wl)
 817 {
 818         struct ieee80211_qos_hdr template;
 819
 820         memset(&template, 0, sizeof(template));
 821
 822         memcpy(template.addr1, wl->bssid, ETH_ALEN);
 823         memcpy(template.addr2, wl->mac_addr, ETH_ALEN);
 824         memcpy(template.addr3, wl->bssid, ETH_ALEN);
 825
 826         template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
 827                                              IEEE80211_STYPE_QOS_NULLFUNC |
 828                                              IEEE80211_FCTL_TODS);
 829
 830         /* FIXME: not sure what priority to use here */
 831         template.qos_ctrl = cpu_to_le16(0);
 832
 833         return wl1271_cmd_template_set(wl, CMD_TEMPL_QOS_NULL_DATA, &template,
 834                                        sizeof(template), 0,
 835                                        wl->basic_rate);
 836 }
 837
 838 int wl1271_cmd_set_sta_default_wep_key(struct wl1271 *wl, u8 id)
 839 {
 840         struct wl1271_cmd_set_sta_keys *cmd;
 841         int ret = 0;
 842
 843         wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
 844
 845         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 846         if (!cmd) {
 847                 ret = -ENOMEM;
 848                 goto out;
 849         }
 850
 851         cmd->id = id;
 852         cmd->key_action = cpu_to_le16(KEY_SET_ID);
 853         cmd->key_type = KEY_WEP;
 854
 855         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 856         if (ret < 0) {
 857                 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
 858                 goto out;
 859         }
 860
 861 out:
 862         kfree(cmd);
 863
 864         return ret;
 865 }
 866
 867 int wl1271_cmd_set_ap_default_wep_key(struct wl1271 *wl, u8 id)
 868 {
 869         struct wl1271_cmd_set_ap_keys *cmd;
 870         int ret = 0;
 871
 872         wl1271_debug(DEBUG_CMD, "cmd set_ap_default_wep_key %d", id);
 873
 874         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 875         if (!cmd) {
 876                 ret = -ENOMEM;
 877                 goto out;
 878         }
 879
 880         cmd->hlid = WL1271_AP_BROADCAST_HLID;
 881         cmd->key_id = id;
 882         cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
 883         cmd->key_action = cpu_to_le16(KEY_SET_ID);
 884         cmd->key_type = KEY_WEP;
 885
 886         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 887         if (ret < 0) {
 888                 wl1271_warning("cmd set_ap_default_wep_key failed: %d", ret);
 889                 goto out;
 890         }
 891
 892 out:
 893         kfree(cmd);
 894
 895         return ret;
 896 }
 897
 898 int wl1271_cmd_set_sta_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
 899                        u8 key_size, const u8 *key, const u8 *addr,
 900                        u32 tx_seq_32, u16 tx_seq_16)
 901 {
 902         struct wl1271_cmd_set_sta_keys *cmd;
 903         int ret = 0;
 904
 905         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 906         if (!cmd) {
 907                 ret = -ENOMEM;
 908                 goto out;
 909         }
 910
 911         if (key_type != KEY_WEP)
 912                 memcpy(cmd->addr, addr, ETH_ALEN);
 913
 914         cmd->key_action = cpu_to_le16(action);
 915         cmd->key_size = key_size;
 916         cmd->key_type = key_type;
 917
 918         cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
 919         cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
 920
 921         /* we have only one SSID profile */
 922         cmd->ssid_profile = 0;
 923
 924         cmd->id = id;
 925
 926         if (key_type == KEY_TKIP) {
 927                 /*
 928                  * We get the key in the following form:
 929                  * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
 930                  * but the target is expecting:
 931                  * TKIP - RX MIC - TX MIC
 932                  */
 933                 memcpy(cmd->key, key, 16);
 934                 memcpy(cmd->key + 16, key + 24, 8);
 935                 memcpy(cmd->key + 24, key + 16, 8);
 936
 937         } else {
 938                 memcpy(cmd->key, key, key_size);
 939         }
 940
 941         wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
 942
 943         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 944         if (ret < 0) {
 945                 wl1271_warning("could not set keys");
 946         goto out;
 947         }
 948
 949 out:
 950         kfree(cmd);
 951
 952         return ret;
 953 }
 954
 955 int wl1271_cmd_set_ap_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
 956                         u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
 957                         u16 tx_seq_16)
 958 {
 959         struct wl1271_cmd_set_ap_keys *cmd;
 960         int ret = 0;
 961         u8 lid_type;
 962
 963         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 964         if (!cmd)
 965                 return -ENOMEM;
 966
 967         if (hlid == WL1271_AP_BROADCAST_HLID) {
 968                 if (key_type == KEY_WEP)
 969                         lid_type = WEP_DEFAULT_LID_TYPE;
 970                 else
 971                         lid_type = BROADCAST_LID_TYPE;
 972         } else {
 973                 lid_type = UNICAST_LID_TYPE;
 974         }
 975
 976         wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d"
 977                      " hlid: %d", (int)action, (int)id, (int)lid_type,
 978                      (int)key_type, (int)hlid);
 979
 980         cmd->lid_key_type = lid_type;
 981         cmd->hlid = hlid;
 982         cmd->key_action = cpu_to_le16(action);
 983         cmd->key_size = key_size;
 984         cmd->key_type = key_type;
 985         cmd->key_id = id;
 986         cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
 987         cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
 988
 989         if (key_type == KEY_TKIP) {
 990                 /*
 991                  * We get the key in the following form:
 992                  * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
 993                  * but the target is expecting:
 994                  * TKIP - RX MIC - TX MIC
 995                  */
 996                 memcpy(cmd->key, key, 16);
 997                 memcpy(cmd->key + 16, key + 24, 8);
 998                 memcpy(cmd->key + 24, key + 16, 8);
 999         } else {
1000                 memcpy(cmd->key, key, key_size);
1001         }
1002
1003         wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd));
1004
1005         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1006         if (ret < 0) {
1007                 wl1271_warning("could not set ap keys");
1008                 goto out;
1009         }
1010
1011 out:
1012         kfree(cmd);
1013         return ret;
1014 }
1015
1016 int wl1271_cmd_disconnect(struct wl1271 *wl)
1017 {
1018         struct wl1271_cmd_disconnect *cmd;
1019         int ret = 0;
1020
1021         wl1271_debug(DEBUG_CMD, "cmd disconnect");
1022
1023         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1024         if (!cmd) {
1025                 ret = -ENOMEM;
1026                 goto out;
1027         }
1028
1029         cmd->rx_config_options = cpu_to_le32(wl->rx_config);
1030         cmd->rx_filter_options = cpu_to_le32(wl->rx_filter);
1031         /* disconnect reason is not used in immediate disconnections */
1032         cmd->type = DISCONNECT_IMMEDIATE;
1033
1034         ret = wl1271_cmd_send(wl, CMD_DISCONNECT, cmd, sizeof(*cmd), 0);
1035         if (ret < 0) {
1036                 wl1271_error("failed to send disconnect command");
1037                 goto out_free;
1038         }
1039
1040         ret = wl1271_cmd_wait_for_event(wl, DISCONNECT_EVENT_COMPLETE_ID);
1041         if (ret < 0)
1042                 wl1271_error("cmd disconnect event completion error");
1043
1044 out_free:
1045         kfree(cmd);
1046
1047 out:
1048         return ret;
1049 }
1050
1051 int wl1271_cmd_set_sta_state(struct wl1271 *wl)
1052 {
1053         struct wl1271_cmd_set_sta_state *cmd;
1054         int ret = 0;
1055
1056         wl1271_debug(DEBUG_CMD, "cmd set sta state");
1057
1058         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1059         if (!cmd) {
1060                 ret = -ENOMEM;
1061                 goto out;
1062         }
1063
1064         cmd->state = WL1271_CMD_STA_STATE_CONNECTED;
1065
1066         ret = wl1271_cmd_send(wl, CMD_SET_STA_STATE, cmd, sizeof(*cmd), 0);
1067         if (ret < 0) {
1068                 wl1271_error("failed to send set STA state command");
1069                 goto out_free;
1070         }
1071
1072 out_free:
1073         kfree(cmd);
1074
1075 out:
1076         return ret;
1077 }
1078
1079 int wl1271_cmd_start_bss(struct wl1271 *wl)
1080 {
1081         struct wl1271_cmd_bss_start *cmd;
1082         struct ieee80211_bss_conf *bss_conf = &wl->vif->bss_conf;
1083         int ret;
1084
1085         wl1271_debug(DEBUG_CMD, "cmd start bss");
1086
1087         /*
1088          * FIXME: We currently do not support hidden SSID. The real SSID
1089          * should be fetched from mac80211 first.
1090          */
1091         if (wl->ssid_len == 0) {
1092                 wl1271_warning("Hidden SSID currently not supported for AP");
1093                 ret = -EINVAL;
1094                 goto out;
1095         }
1096
1097         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1098         if (!cmd) {
1099                 ret = -ENOMEM;
1100                 goto out;
1101         }
1102
1103         memcpy(cmd->bssid, bss_conf->bssid, ETH_ALEN);
1104
1105         cmd->aging_period = cpu_to_le16(WL1271_AP_DEF_INACTIV_SEC);
1106         cmd->bss_index = WL1271_AP_BSS_INDEX;
1107         cmd->global_hlid = WL1271_AP_GLOBAL_HLID;
1108         cmd->broadcast_hlid = WL1271_AP_BROADCAST_HLID;
1109         cmd->basic_rate_set = cpu_to_le32(wl->basic_rate_set);
1110         cmd->beacon_interval = cpu_to_le16(wl->beacon_int);
1111         cmd->dtim_interval = bss_conf->dtim_period;
1112         cmd->beacon_expiry = WL1271_AP_DEF_BEACON_EXP;
1113         cmd->channel = wl->channel;
1114         cmd->ssid_len = wl->ssid_len;
1115         cmd->ssid_type = SSID_TYPE_PUBLIC;
1116         memcpy(cmd->ssid, wl->ssid, wl->ssid_len);
1117
1118         switch (wl->band) {
1119         case IEEE80211_BAND_2GHZ:
1120                 cmd->band = RADIO_BAND_2_4GHZ;
1121                 break;
1122         case IEEE80211_BAND_5GHZ:
1123                 cmd->band = RADIO_BAND_5GHZ;
1124                 break;
1125         default:
1126                 wl1271_warning("bss start - unknown band: %d", (int)wl->band);
1127                 cmd->band = RADIO_BAND_2_4GHZ;
1128                 break;
1129         }
1130
1131         ret = wl1271_cmd_send(wl, CMD_BSS_START, cmd, sizeof(*cmd), 0);
1132         if (ret < 0) {
1133                 wl1271_error("failed to initiate cmd start bss");
1134                 goto out_free;
1135         }
1136
1137 out_free:
1138         kfree(cmd);
1139
1140 out:
1141         return ret;
1142 }
1143
1144 int wl1271_cmd_stop_bss(struct wl1271 *wl)
1145 {
1146         struct wl1271_cmd_bss_start *cmd;
1147         int ret;
1148
1149         wl1271_debug(DEBUG_CMD, "cmd stop bss");
1150
1151         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1152         if (!cmd) {
1153                 ret = -ENOMEM;
1154                 goto out;
1155         }
1156
1157         cmd->bss_index = WL1271_AP_BSS_INDEX;
1158
1159         ret = wl1271_cmd_send(wl, CMD_BSS_STOP, cmd, sizeof(*cmd), 0);
1160         if (ret < 0) {
1161                 wl1271_error("failed to initiate cmd stop bss");
1162                 goto out_free;
1163         }
1164
1165 out_free:
1166         kfree(cmd);
1167
1168 out:
1169         return ret;
1170 }
1171
1172 int wl1271_cmd_add_sta(struct wl1271 *wl, struct ieee80211_sta *sta, u8 hlid)
1173 {
1174         struct wl1271_cmd_add_sta *cmd;
1175         int ret;
1176
1177         wl1271_debug(DEBUG_CMD, "cmd add sta %d", (int)hlid);
1178
1179         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1180         if (!cmd) {
1181                 ret = -ENOMEM;
1182                 goto out;
1183         }
1184
1185         /* currently we don't support UAPSD */
1186         cmd->sp_len = 0;
1187
1188         memcpy(cmd->addr, sta->addr, ETH_ALEN);
1189         cmd->bss_index = WL1271_AP_BSS_INDEX;
1190         cmd->aid = sta->aid;
1191         cmd->hlid = hlid;
1192
1193         /*
1194          * FIXME: Does STA support QOS? We need to propagate this info from
1195          * hostapd. Currently not that important since this is only used for
1196          * sending the correct flavor of null-data packet in response to a
1197          * trigger.
1198          */
1199         cmd->wmm = 0;
1200
1201         cmd->supported_rates = cpu_to_le32(wl1271_tx_enabled_rates_get(wl,
1202                                                 sta->supp_rates[wl->band]));
1203
1204         wl1271_debug(DEBUG_CMD, "new sta rates: 0x%x", cmd->supported_rates);
1205
1206         ret = wl1271_cmd_send(wl, CMD_ADD_STA, cmd, sizeof(*cmd), 0);
1207         if (ret < 0) {
1208                 wl1271_error("failed to initiate cmd add sta");
1209                 goto out_free;
1210         }
1211
1212 out_free:
1213         kfree(cmd);
1214
1215 out:
1216         return ret;
1217 }
1218
1219 int wl1271_cmd_remove_sta(struct wl1271 *wl, u8 hlid)
1220 {
1221         struct wl1271_cmd_remove_sta *cmd;
1222         int ret;
1223
1224         wl1271_debug(DEBUG_CMD, "cmd remove sta %d", (int)hlid);
1225
1226         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1227         if (!cmd) {
1228                 ret = -ENOMEM;
1229                 goto out;
1230         }
1231
1232         cmd->hlid = hlid;
1233         /* We never send a deauth, mac80211 is in charge of this */
1234         cmd->reason_opcode = 0;
1235         cmd->send_deauth_flag = 0;
1236
1237         ret = wl1271_cmd_send(wl, CMD_REMOVE_STA, cmd, sizeof(*cmd), 0);
1238         if (ret < 0) {
1239                 wl1271_error("failed to initiate cmd remove sta");
1240                 goto out_free;
1241         }
1242
1243         /*
1244          * We are ok with a timeout here. The event is sometimes not sent
1245          * due to a firmware bug.
1246          */
1247         wl1271_cmd_wait_for_event_or_timeout(wl, STA_REMOVE_COMPLETE_EVENT_ID);
1248
1249 out_free:
1250         kfree(cmd);
1251
1252 out:
1253         return ret;
1254 }