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 #include <linux/slab.h>
  27
  28 #include "wl1251_init.h"
  29 #include "wl12xx_80211.h"
  30 #include "wl1251_acx.h"
  31 #include "wl1251_cmd.h"
  32 #include "wl1251_reg.h"
  33
  34 int wl1251_hw_init_hwenc_config(struct wl1251 *wl)
  35 {
  36         int ret;
  37
  38         ret = wl1251_acx_feature_cfg(wl);
  39         if (ret < 0) {
  40                 wl1251_warning("couldn't set feature config");
  41                 return ret;
  42         }
  43
  44         ret = wl1251_acx_default_key(wl, wl->default_key);
  45         if (ret < 0) {
  46                 wl1251_warning("couldn't set default key");
  47                 return ret;
  48         }
  49
  50         return 0;
  51 }
  52
  53 int wl1251_hw_init_templates_config(struct wl1251 *wl)
  54 {
  55         int ret;
  56         u8 partial_vbm[PARTIAL_VBM_MAX];
  57
  58         /* send empty templates for fw memory reservation */
  59         ret = wl1251_cmd_template_set(wl, CMD_PROBE_REQ, NULL,
  60                                       sizeof(struct wl12xx_probe_req_template));
  61         if (ret < 0)
  62                 return ret;
  63
  64         ret = wl1251_cmd_template_set(wl, CMD_NULL_DATA, NULL,
  65                                       sizeof(struct wl12xx_null_data_template));
  66         if (ret < 0)
  67                 return ret;
  68
  69         ret = wl1251_cmd_template_set(wl, CMD_PS_POLL, NULL,
  70                                       sizeof(struct wl12xx_ps_poll_template));
  71         if (ret < 0)
  72                 return ret;
  73
  74         ret = wl1251_cmd_template_set(wl, CMD_QOS_NULL_DATA, NULL,
  75                                       sizeof
  76                                       (struct wl12xx_qos_null_data_template));
  77         if (ret < 0)
  78                 return ret;
  79
  80         ret = wl1251_cmd_template_set(wl, CMD_PROBE_RESP, NULL,
  81                                       sizeof
  82                                       (struct wl12xx_probe_resp_template));
  83         if (ret < 0)
  84                 return ret;
  85
  86         ret = wl1251_cmd_template_set(wl, CMD_BEACON, NULL,
  87                                       sizeof
  88                                       (struct wl12xx_beacon_template));
  89         if (ret < 0)
  90                 return ret;
  91
  92         /* tim templates, first reserve space then allocate an empty one */
  93         memset(partial_vbm, 0, PARTIAL_VBM_MAX);
  94         ret = wl1251_cmd_vbm(wl, TIM_ELE_ID, partial_vbm, PARTIAL_VBM_MAX, 0);
  95         if (ret < 0)
  96                 return ret;
  97
  98         ret = wl1251_cmd_vbm(wl, TIM_ELE_ID, partial_vbm, 1, 0);
  99         if (ret < 0)
 100                 return ret;
 101
 102         return 0;
 103 }
 104
 105 int wl1251_hw_init_rx_config(struct wl1251 *wl, u32 config, u32 filter)
 106 {
 107         int ret;
 108
 109         ret = wl1251_acx_rx_msdu_life_time(wl, RX_MSDU_LIFETIME_DEF);
 110         if (ret < 0)
 111                 return ret;
 112
 113         ret = wl1251_acx_rx_config(wl, config, filter);
 114         if (ret < 0)
 115                 return ret;
 116
 117         return 0;
 118 }
 119
 120 int wl1251_hw_init_phy_config(struct wl1251 *wl)
 121 {
 122         int ret;
 123
 124         ret = wl1251_acx_pd_threshold(wl);
 125         if (ret < 0)
 126                 return ret;
 127
 128         ret = wl1251_acx_slot(wl, DEFAULT_SLOT_TIME);
 129         if (ret < 0)
 130                 return ret;
 131
 132         ret = wl1251_acx_group_address_tbl(wl);
 133         if (ret < 0)
 134                 return ret;
 135
 136         ret = wl1251_acx_service_period_timeout(wl);
 137         if (ret < 0)
 138                 return ret;
 139
 140         ret = wl1251_acx_rts_threshold(wl, RTS_THRESHOLD_DEF);
 141         if (ret < 0)
 142                 return ret;
 143
 144         return 0;
 145 }
 146
 147 int wl1251_hw_init_beacon_filter(struct wl1251 *wl)
 148 {
 149         int ret;
 150
 151         /* disable beacon filtering at this stage */
 152         ret = wl1251_acx_beacon_filter_opt(wl, false);
 153         if (ret < 0)
 154                 return ret;
 155
 156         ret = wl1251_acx_beacon_filter_table(wl);
 157         if (ret < 0)
 158                 return ret;
 159
 160         return 0;
 161 }
 162
 163 int wl1251_hw_init_pta(struct wl1251 *wl)
 164 {
 165         int ret;
 166
 167         ret = wl1251_acx_sg_enable(wl);
 168         if (ret < 0)
 169                 return ret;
 170
 171         ret = wl1251_acx_sg_cfg(wl);
 172         if (ret < 0)
 173                 return ret;
 174
 175         return 0;
 176 }
 177
 178 int wl1251_hw_init_energy_detection(struct wl1251 *wl)
 179 {
 180         int ret;
 181
 182         ret = wl1251_acx_cca_threshold(wl);
 183         if (ret < 0)
 184                 return ret;
 185
 186         return 0;
 187 }
 188
 189 int wl1251_hw_init_beacon_broadcast(struct wl1251 *wl)
 190 {
 191         int ret;
 192
 193         ret = wl1251_acx_bcn_dtim_options(wl);
 194         if (ret < 0)
 195                 return ret;
 196
 197         return 0;
 198 }
 199
 200 int wl1251_hw_init_power_auth(struct wl1251 *wl)
 201 {
 202         return wl1251_acx_sleep_auth(wl, WL1251_PSM_CAM);
 203 }
 204
 205 int wl1251_hw_init_mem_config(struct wl1251 *wl)
 206 {
 207         int ret;
 208
 209         ret = wl1251_acx_mem_cfg(wl);
 210         if (ret < 0)
 211                 return ret;
 212
 213         wl->target_mem_map = kzalloc(sizeof(struct wl1251_acx_mem_map),
 214                                           GFP_KERNEL);
 215         if (!wl->target_mem_map) {
 216                 wl1251_error("couldn't allocate target memory map");
 217                 return -ENOMEM;
 218         }
 219
 220         /* we now ask for the firmware built memory map */
 221         ret = wl1251_acx_mem_map(wl, wl->target_mem_map,
 222                                  sizeof(struct wl1251_acx_mem_map));
 223         if (ret < 0) {
 224                 wl1251_error("couldn't retrieve firmware memory map");
 225                 kfree(wl->target_mem_map);
 226                 wl->target_mem_map = NULL;
 227                 return ret;
 228         }
 229
 230         return 0;
 231 }
 232
 233 static int wl1251_hw_init_txq_fill(u8 qid,
 234                                    struct acx_tx_queue_qos_config *config,
 235                                    u32 num_blocks)
 236 {
 237         config->qid = qid;
 238
 239         switch (qid) {
 240         case QOS_AC_BE:
 241                 config->high_threshold =
 242                         (QOS_TX_HIGH_BE_DEF * num_blocks) / 100;
 243                 config->low_threshold =
 244                         (QOS_TX_LOW_BE_DEF * num_blocks) / 100;
 245                 break;
 246         case QOS_AC_BK:
 247                 config->high_threshold =
 248                         (QOS_TX_HIGH_BK_DEF * num_blocks) / 100;
 249                 config->low_threshold =
 250                         (QOS_TX_LOW_BK_DEF * num_blocks) / 100;
 251                 break;
 252         case QOS_AC_VI:
 253                 config->high_threshold =
 254                         (QOS_TX_HIGH_VI_DEF * num_blocks) / 100;
 255                 config->low_threshold =
 256                         (QOS_TX_LOW_VI_DEF * num_blocks) / 100;
 257                 break;
 258         case QOS_AC_VO:
 259                 config->high_threshold =
 260                         (QOS_TX_HIGH_VO_DEF * num_blocks) / 100;
 261                 config->low_threshold =
 262                         (QOS_TX_LOW_VO_DEF * num_blocks) / 100;
 263                 break;
 264         default:
 265                 wl1251_error("Invalid TX queue id: %d", qid);
 266                 return -EINVAL;
 267         }
 268
 269         return 0;
 270 }
 271
 272 static int wl1251_hw_init_tx_queue_config(struct wl1251 *wl)
 273 {
 274         struct acx_tx_queue_qos_config *config;
 275         struct wl1251_acx_mem_map *wl_mem_map = wl->target_mem_map;
 276         int ret, i;
 277
 278         wl1251_debug(DEBUG_ACX, "acx tx queue config");
 279
 280         config = kzalloc(sizeof(*config), GFP_KERNEL);
 281         if (!config) {
 282                 ret = -ENOMEM;
 283                 goto out;
 284         }
 285
 286         for (i = 0; i < MAX_NUM_OF_AC; i++) {
 287                 ret = wl1251_hw_init_txq_fill(i, config,
 288                                               wl_mem_map->num_tx_mem_blocks);
 289                 if (ret < 0)
 290                         goto out;
 291
 292                 ret = wl1251_cmd_configure(wl, ACX_TX_QUEUE_CFG,
 293                                            config, sizeof(*config));
 294                 if (ret < 0)
 295                         goto out;
 296         }
 297
 298         wl1251_acx_ac_cfg(wl, AC_BE, CWMIN_BE, CWMAX_BE, AIFS_DIFS, TXOP_BE);
 299         wl1251_acx_ac_cfg(wl, AC_BK, CWMIN_BK, CWMAX_BK, AIFS_DIFS, TXOP_BK);
 300         wl1251_acx_ac_cfg(wl, AC_VI, CWMIN_VI, CWMAX_VI, AIFS_DIFS, TXOP_VI);
 301         wl1251_acx_ac_cfg(wl, AC_VO, CWMIN_VO, CWMAX_VO, AIFS_DIFS, TXOP_VO);
 302
 303 out:
 304         kfree(config);
 305         return ret;
 306 }
 307
 308 static int wl1251_hw_init_data_path_config(struct wl1251 *wl)
 309 {
 310         int ret;
 311
 312         /* asking for the data path parameters */
 313         wl->data_path = kzalloc(sizeof(struct acx_data_path_params_resp),
 314                                 GFP_KERNEL);
 315         if (!wl->data_path) {
 316                 wl1251_error("Couldnt allocate data path parameters");
 317                 return -ENOMEM;
 318         }
 319
 320         ret = wl1251_acx_data_path_params(wl, wl->data_path);
 321         if (ret < 0) {
 322                 kfree(wl->data_path);
 323                 wl->data_path = NULL;
 324                 return ret;
 325         }
 326
 327         return 0;
 328 }
 329
 330
 331 int wl1251_hw_init(struct wl1251 *wl)
 332 {
 333         struct wl1251_acx_mem_map *wl_mem_map;
 334         int ret;
 335
 336         ret = wl1251_hw_init_hwenc_config(wl);
 337         if (ret < 0)
 338                 return ret;
 339
 340         /* Template settings */
 341         ret = wl1251_hw_init_templates_config(wl);
 342         if (ret < 0)
 343                 return ret;
 344
 345         /* Default memory configuration */
 346         ret = wl1251_hw_init_mem_config(wl);
 347         if (ret < 0)
 348                 return ret;
 349
 350         /* Default data path configuration  */
 351         ret = wl1251_hw_init_data_path_config(wl);
 352         if (ret < 0)
 353                 goto out_free_memmap;
 354
 355         /* RX config */
 356         ret = wl1251_hw_init_rx_config(wl,
 357                                        RX_CFG_PROMISCUOUS | RX_CFG_TSF,
 358                                        RX_FILTER_OPTION_DEF);
 359         /* RX_CONFIG_OPTION_ANY_DST_ANY_BSS,
 360            RX_FILTER_OPTION_FILTER_ALL); */
 361         if (ret < 0)
 362                 goto out_free_data_path;
 363
 364         /* TX queues config */
 365         ret = wl1251_hw_init_tx_queue_config(wl);
 366         if (ret < 0)
 367                 goto out_free_data_path;
 368
 369         /* PHY layer config */
 370         ret = wl1251_hw_init_phy_config(wl);
 371         if (ret < 0)
 372                 goto out_free_data_path;
 373
 374         /* Initialize connection monitoring thresholds */
 375         ret = wl1251_acx_conn_monit_params(wl);
 376         if (ret < 0)
 377                 goto out_free_data_path;
 378
 379         /* Beacon filtering */
 380         ret = wl1251_hw_init_beacon_filter(wl);
 381         if (ret < 0)
 382                 goto out_free_data_path;
 383
 384         /* Bluetooth WLAN coexistence */
 385         ret = wl1251_hw_init_pta(wl);
 386         if (ret < 0)
 387                 goto out_free_data_path;
 388
 389         /* Energy detection */
 390         ret = wl1251_hw_init_energy_detection(wl);
 391         if (ret < 0)
 392                 goto out_free_data_path;
 393
 394         /* Beacons and boradcast settings */
 395         ret = wl1251_hw_init_beacon_broadcast(wl);
 396         if (ret < 0)
 397                 goto out_free_data_path;
 398
 399         /* Enable data path */
 400         ret = wl1251_cmd_data_path(wl, wl->channel, 1);
 401         if (ret < 0)
 402                 goto out_free_data_path;
 403
 404         /* Default power state */
 405         ret = wl1251_hw_init_power_auth(wl);
 406         if (ret < 0)
 407                 goto out_free_data_path;
 408
 409         wl_mem_map = wl->target_mem_map;
 410         wl1251_info("%d tx blocks at 0x%x, %d rx blocks at 0x%x",
 411                     wl_mem_map->num_tx_mem_blocks,
 412                     wl->data_path->tx_control_addr,
 413                     wl_mem_map->num_rx_mem_blocks,
 414                     wl->data_path->rx_control_addr);
 415
 416         return 0;
 417
 418  out_free_data_path:
 419         kfree(wl->data_path);
 420
 421  out_free_memmap:
 422         kfree(wl->target_mem_map);
 423
 424         return ret;
 425 }