drivers/net/wireless/wl12xx/wl1251_init.c

   1 /*
   2  * This file is part of wl1251
   3  *
   4  * Copyright (C) 2009 Nokia Corporation
   5  *
   6  * Contact: Kalle Valo <kalle.valo@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/kernel.h>
  25 #include <linux/module.h>
  26
  27 #include "wl1251_init.h"
  28 #include "wl12xx_80211.h"
  29 #include "wl1251_acx.h"
  30 #include "wl1251_cmd.h"
  31 #include "wl1251_reg.h"
  32
  33 int wl1251_hw_init_hwenc_config(struct wl1251 *wl)
  34 {
  35         int ret;
  36
  37         ret = wl1251_acx_feature_cfg(wl);
  38         if (ret < 0) {
  39                 wl1251_warning("couldn't set feature config");
  40                 return ret;
  41         }
  42
  43         ret = wl1251_acx_default_key(wl, wl->default_key);
  44         if (ret < 0) {
  45                 wl1251_warning("couldn't set default key");
  46                 return ret;
  47         }
  48
  49         return 0;
  50 }
  51
  52 int wl1251_hw_init_templates_config(struct wl1251 *wl)
  53 {
  54         int ret;
  55         u8 partial_vbm[PARTIAL_VBM_MAX];
  56
  57         /* send empty templates for fw memory reservation */
  58         ret = wl1251_cmd_template_set(wl, CMD_PROBE_REQ, NULL,
  59                                       sizeof(struct wl12xx_probe_req_template));
  60         if (ret < 0)
  61                 return ret;
  62
  63         ret = wl1251_cmd_template_set(wl, CMD_NULL_DATA, NULL,
  64                                       sizeof(struct wl12xx_null_data_template));
  65         if (ret < 0)
  66                 return ret;
  67
  68         ret = wl1251_cmd_template_set(wl, CMD_PS_POLL, NULL,
  69                                       sizeof(struct wl12xx_ps_poll_template));
  70         if (ret < 0)
  71                 return ret;
  72
  73         ret = wl1251_cmd_template_set(wl, CMD_QOS_NULL_DATA, NULL,
  74                                       sizeof
  75                                       (struct wl12xx_qos_null_data_template));
  76         if (ret < 0)
  77                 return ret;
  78
  79         ret = wl1251_cmd_template_set(wl, CMD_PROBE_RESP, NULL,
  80                                       sizeof
  81                                       (struct wl12xx_probe_resp_template));
  82         if (ret < 0)
  83                 return ret;
  84
  85         ret = wl1251_cmd_template_set(wl, CMD_BEACON, NULL,
  86                                       sizeof
  87                                       (struct wl12xx_beacon_template));
  88         if (ret < 0)
  89                 return ret;
  90
  91         /* tim templates, first reserve space then allocate an empty one */
  92         memset(partial_vbm, 0, PARTIAL_VBM_MAX);
  93         ret = wl1251_cmd_vbm(wl, TIM_ELE_ID, partial_vbm, PARTIAL_VBM_MAX, 0);
  94         if (ret < 0)
  95                 return ret;
  96
  97         ret = wl1251_cmd_vbm(wl, TIM_ELE_ID, partial_vbm, 1, 0);
  98         if (ret < 0)
  99                 return ret;
 100
 101         return 0;
 102 }
 103
 104 int wl1251_hw_init_rx_config(struct wl1251 *wl, u32 config, u32 filter)
 105 {
 106         int ret;
 107
 108         ret = wl1251_acx_rx_msdu_life_time(wl, RX_MSDU_LIFETIME_DEF);
 109         if (ret < 0)
 110                 return ret;
 111
 112         ret = wl1251_acx_rx_config(wl, config, filter);
 113         if (ret < 0)
 114                 return ret;
 115
 116         return 0;
 117 }
 118
 119 int wl1251_hw_init_phy_config(struct wl1251 *wl)
 120 {
 121         int ret;
 122
 123         ret = wl1251_acx_pd_threshold(wl);
 124         if (ret < 0)
 125                 return ret;
 126
 127         ret = wl1251_acx_slot(wl, DEFAULT_SLOT_TIME);
 128         if (ret < 0)
 129                 return ret;
 130
 131         ret = wl1251_acx_group_address_tbl(wl);
 132         if (ret < 0)
 133                 return ret;
 134
 135         ret = wl1251_acx_service_period_timeout(wl);
 136         if (ret < 0)
 137                 return ret;
 138
 139         ret = wl1251_acx_rts_threshold(wl, RTS_THRESHOLD_DEF);
 140         if (ret < 0)
 141                 return ret;
 142
 143         return 0;
 144 }
 145
 146 int wl1251_hw_init_beacon_filter(struct wl1251 *wl)
 147 {
 148         int ret;
 149
 150         /* disable beacon filtering at this stage */
 151         ret = wl1251_acx_beacon_filter_opt(wl, false);
 152         if (ret < 0)
 153                 return ret;
 154
 155         ret = wl1251_acx_beacon_filter_table(wl);
 156         if (ret < 0)
 157                 return ret;
 158
 159         return 0;
 160 }
 161
 162 int wl1251_hw_init_pta(struct wl1251 *wl)
 163 {
 164         int ret;
 165
 166         ret = wl1251_acx_sg_enable(wl);
 167         if (ret < 0)
 168                 return ret;
 169
 170         ret = wl1251_acx_sg_cfg(wl);
 171         if (ret < 0)
 172                 return ret;
 173
 174         return 0;
 175 }
 176
 177 int wl1251_hw_init_energy_detection(struct wl1251 *wl)
 178 {
 179         int ret;
 180
 181         ret = wl1251_acx_cca_threshold(wl);
 182         if (ret < 0)
 183                 return ret;
 184
 185         return 0;
 186 }
 187
 188 int wl1251_hw_init_beacon_broadcast(struct wl1251 *wl)
 189 {
 190         int ret;
 191
 192         ret = wl1251_acx_bcn_dtim_options(wl);
 193         if (ret < 0)
 194                 return ret;
 195
 196         return 0;
 197 }
 198
 199 int wl1251_hw_init_power_auth(struct wl1251 *wl)
 200 {
 201         return wl1251_acx_sleep_auth(wl, WL1251_PSM_CAM);
 202 }
 203
 204 int wl1251_hw_init_mem_config(struct wl1251 *wl)
 205 {
 206         int ret;
 207
 208         ret = wl1251_acx_mem_cfg(wl);
 209         if (ret < 0)
 210                 return ret;
 211
 212         wl->target_mem_map = kzalloc(sizeof(struct wl1251_acx_mem_map),
 213                                           GFP_KERNEL);
 214         if (!wl->target_mem_map) {
 215                 wl1251_error("couldn't allocate target memory map");
 216                 return -ENOMEM;
 217         }
 218
 219         /* we now ask for the firmware built memory map */
 220         ret = wl1251_acx_mem_map(wl, wl->target_mem_map,
 221                                  sizeof(struct wl1251_acx_mem_map));
 222         if (ret < 0) {
 223                 wl1251_error("couldn't retrieve firmware memory map");
 224                 kfree(wl->target_mem_map);
 225                 wl->target_mem_map = NULL;
 226                 return ret;
 227         }
 228
 229         return 0;
 230 }
 231
 232 static int wl1251_hw_init_txq_fill(u8 qid,
 233                                    struct acx_tx_queue_qos_config *config,
 234                                    u32 num_blocks)
 235 {
 236         config->qid = qid;
 237
 238         switch (qid) {
 239         case QOS_AC_BE:
 240                 config->high_threshold =
 241                         (QOS_TX_HIGH_BE_DEF * num_blocks) / 100;
 242                 config->low_threshold =
 243                         (QOS_TX_LOW_BE_DEF * num_blocks) / 100;
 244                 break;
 245         case QOS_AC_BK:
 246                 config->high_threshold =
 247                         (QOS_TX_HIGH_BK_DEF * num_blocks) / 100;
 248                 config->low_threshold =
 249                         (QOS_TX_LOW_BK_DEF * num_blocks) / 100;
 250                 break;
 251         case QOS_AC_VI:
 252                 config->high_threshold =
 253                         (QOS_TX_HIGH_VI_DEF * num_blocks) / 100;
 254                 config->low_threshold =
 255                         (QOS_TX_LOW_VI_DEF * num_blocks) / 100;
 256                 break;
 257         case QOS_AC_VO:
 258                 config->high_threshold =
 259                         (QOS_TX_HIGH_VO_DEF * num_blocks) / 100;
 260                 config->low_threshold =
 261                         (QOS_TX_LOW_VO_DEF * num_blocks) / 100;
 262                 break;
 263         default:
 264                 wl1251_error("Invalid TX queue id: %d", qid);
 265                 return -EINVAL;
 266         }
 267
 268         return 0;
 269 }
 270
 271 static int wl1251_hw_init_tx_queue_config(struct wl1251 *wl)
 272 {
 273         struct acx_tx_queue_qos_config *config;
 274         struct wl1251_acx_mem_map *wl_mem_map = wl->target_mem_map;
 275         int ret, i;
 276
 277         wl1251_debug(DEBUG_ACX, "acx tx queue config");
 278
 279         config = kzalloc(sizeof(*config), GFP_KERNEL);
 280         if (!config) {
 281                 ret = -ENOMEM;
 282                 goto out;
 283         }
 284
 285         for (i = 0; i < MAX_NUM_OF_AC; i++) {
 286                 ret = wl1251_hw_init_txq_fill(i, config,
 287                                               wl_mem_map->num_tx_mem_blocks);
 288                 if (ret < 0)
 289                         goto out;
 290
 291                 ret = wl1251_cmd_configure(wl, ACX_TX_QUEUE_CFG,
 292                                            config, sizeof(*config));
 293                 if (ret < 0)
 294                         goto out;
 295         }
 296
 297         wl1251_acx_ac_cfg(wl, AC_BE, CWMIN_BE, CWMAX_BE, AIFS_DIFS, TXOP_BE);
 298         wl1251_acx_ac_cfg(wl, AC_BK, CWMIN_BK, CWMAX_BK, AIFS_DIFS, TXOP_BK);
 299         wl1251_acx_ac_cfg(wl, AC_VI, CWMIN_VI, CWMAX_VI, AIFS_DIFS, TXOP_VI);
 300         wl1251_acx_ac_cfg(wl, AC_VO, CWMIN_VO, CWMAX_VO, AIFS_DIFS, TXOP_VO);
 301
 302 out:
 303         kfree(config);
 304         return ret;
 305 }
 306
 307 static int wl1251_hw_init_data_path_config(struct wl1251 *wl)
 308 {
 309         int ret;
 310
 311         /* asking for the data path parameters */
 312         wl->data_path = kzalloc(sizeof(struct acx_data_path_params_resp),
 313                                 GFP_KERNEL);
 314         if (!wl->data_path) {
 315                 wl1251_error("Couldnt allocate data path parameters");
 316                 return -ENOMEM;
 317         }
 318
 319         ret = wl1251_acx_data_path_params(wl, wl->data_path);
 320         if (ret < 0) {
 321                 kfree(wl->data_path);
 322                 wl->data_path = NULL;
 323                 return ret;
 324         }
 325
 326         return 0;
 327 }
 328
 329
 330 int wl1251_hw_init(struct wl1251 *wl)
 331 {
 332         struct wl1251_acx_mem_map *wl_mem_map;
 333         int ret;
 334
 335         ret = wl1251_hw_init_hwenc_config(wl);
 336         if (ret < 0)
 337                 return ret;
 338
 339         /* Template settings */
 340         ret = wl1251_hw_init_templates_config(wl);
 341         if (ret < 0)
 342                 return ret;
 343
 344         /* Default memory configuration */
 345         ret = wl1251_hw_init_mem_config(wl);
 346         if (ret < 0)
 347                 return ret;
 348
 349         /* Default data path configuration  */
 350         ret = wl1251_hw_init_data_path_config(wl);
 351         if (ret < 0)
 352                 goto out_free_memmap;
 353
 354         /* RX config */
 355         ret = wl1251_hw_init_rx_config(wl,
 356                                        RX_CFG_PROMISCUOUS | RX_CFG_TSF,
 357                                        RX_FILTER_OPTION_DEF);
 358         /* RX_CONFIG_OPTION_ANY_DST_ANY_BSS,
 359            RX_FILTER_OPTION_FILTER_ALL); */
 360         if (ret < 0)
 361                 goto out_free_data_path;
 362
 363         /* TX queues config */
 364         ret = wl1251_hw_init_tx_queue_config(wl);
 365         if (ret < 0)
 366                 goto out_free_data_path;
 367
 368         /* PHY layer config */
 369         ret = wl1251_hw_init_phy_config(wl);
 370         if (ret < 0)
 371                 goto out_free_data_path;
 372
 373         /* Initialize connection monitoring thresholds */
 374         ret = wl1251_acx_conn_monit_params(wl);
 375         if (ret < 0)
 376                 goto out_free_data_path;
 377
 378         /* Beacon filtering */
 379         ret = wl1251_hw_init_beacon_filter(wl);
 380         if (ret < 0)
 381                 goto out_free_data_path;
 382
 383         /* Bluetooth WLAN coexistence */
 384         ret = wl1251_hw_init_pta(wl);
 385         if (ret < 0)
 386                 goto out_free_data_path;
 387
 388         /* Energy detection */
 389         ret = wl1251_hw_init_energy_detection(wl);
 390         if (ret < 0)
 391                 goto out_free_data_path;
 392
 393         /* Beacons and boradcast settings */
 394         ret = wl1251_hw_init_beacon_broadcast(wl);
 395         if (ret < 0)
 396                 goto out_free_data_path;
 397
 398         /* Enable data path */
 399         ret = wl1251_cmd_data_path(wl, wl->channel, 1);
 400         if (ret < 0)
 401                 goto out_free_data_path;
 402
 403         /* Default power state */
 404         ret = wl1251_hw_init_power_auth(wl);
 405         if (ret < 0)
 406                 goto out_free_data_path;
 407
 408         wl_mem_map = wl->target_mem_map;
 409         wl1251_info("%d tx blocks at 0x%x, %d rx blocks at 0x%x",
 410                     wl_mem_map->num_tx_mem_blocks,
 411                     wl->data_path->tx_control_addr,
 412                     wl_mem_map->num_rx_mem_blocks,
 413                     wl->data_path->rx_control_addr);
 414
 415         return 0;
 416
 417  out_free_data_path:
 418         kfree(wl->data_path);
 419
 420  out_free_memmap:
 421         kfree(wl->target_mem_map);
 422
 423         return ret;
 424 }