drivers/net/wireless/wl1251/init.c

   1 /*
   2  * This file is part of wl1251
   3  *
   4  * Copyright (C) 2009 Nokia Corporation
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * version 2 as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  18  * 02110-1301 USA
  19  *
  20  */
  21
  22 #include <linux/kernel.h>
  23 #include <linux/module.h>
  24 #include <linux/slab.h>
  25
  26 #include "init.h"
  27 #include "wl12xx_80211.h"
  28 #include "acx.h"
  29 #include "cmd.h"
  30 #include "reg.h"
  31
  32 int wl1251_hw_init_hwenc_config(struct wl1251 *wl)
  33 {
  34         int ret;
  35
  36         ret = wl1251_acx_feature_cfg(wl, 0);
  37         if (ret < 0) {
  38                 wl1251_warning("couldn't set feature config");
  39                 return ret;
  40         }
  41
  42         ret = wl1251_acx_default_key(wl, wl->default_key);
  43         if (ret < 0) {
  44                 wl1251_warning("couldn't set default key");
  45                 return ret;
  46         }
  47
  48         return 0;
  49 }
  50
  51 int wl1251_hw_init_templates_config(struct wl1251 *wl)
  52 {
  53         int ret;
  54         u8 partial_vbm[PARTIAL_VBM_MAX];
  55
  56         /* send empty templates for fw memory reservation */
  57         ret = wl1251_cmd_template_set(wl, CMD_PROBE_REQ, NULL,
  58                                       sizeof(struct wl12xx_probe_req_template));
  59         if (ret < 0)
  60                 return ret;
  61
  62         ret = wl1251_cmd_template_set(wl, CMD_NULL_DATA, NULL,
  63                                       sizeof(struct wl12xx_null_data_template));
  64         if (ret < 0)
  65                 return ret;
  66
  67         ret = wl1251_cmd_template_set(wl, CMD_PS_POLL, NULL,
  68                                       sizeof(struct wl12xx_ps_poll_template));
  69         if (ret < 0)
  70                 return ret;
  71
  72         ret = wl1251_cmd_template_set(wl, CMD_QOS_NULL_DATA, NULL,
  73                                       sizeof
  74                                       (struct wl12xx_qos_null_data_template));
  75         if (ret < 0)
  76                 return ret;
  77
  78         ret = wl1251_cmd_template_set(wl, CMD_PROBE_RESP, NULL,
  79                                       sizeof
  80                                       (struct wl12xx_probe_resp_template));
  81         if (ret < 0)
  82                 return ret;
  83
  84         ret = wl1251_cmd_template_set(wl, CMD_BEACON, NULL,
  85                                       sizeof
  86                                       (struct wl12xx_beacon_template));
  87         if (ret < 0)
  88                 return ret;
  89
  90         /* tim templates, first reserve space then allocate an empty one */
  91         memset(partial_vbm, 0, PARTIAL_VBM_MAX);
  92         ret = wl1251_cmd_vbm(wl, TIM_ELE_ID, partial_vbm, PARTIAL_VBM_MAX, 0);
  93         if (ret < 0)
  94                 return ret;
  95
  96         ret = wl1251_cmd_vbm(wl, TIM_ELE_ID, partial_vbm, 1, 0);
  97         if (ret < 0)
  98                 return ret;
  99
 100         return 0;
 101 }
 102
 103 int wl1251_hw_init_rx_config(struct wl1251 *wl, u32 config, u32 filter)
 104 {
 105         int ret;
 106
 107         ret = wl1251_acx_rx_msdu_life_time(wl, RX_MSDU_LIFETIME_DEF);
 108         if (ret < 0)
 109                 return ret;
 110
 111         ret = wl1251_acx_rx_config(wl, config, filter);
 112         if (ret < 0)
 113                 return ret;
 114
 115         return 0;
 116 }
 117
 118 int wl1251_hw_init_phy_config(struct wl1251 *wl)
 119 {
 120         int ret;
 121
 122         ret = wl1251_acx_pd_threshold(wl);
 123         if (ret < 0)
 124                 return ret;
 125
 126         ret = wl1251_acx_slot(wl, DEFAULT_SLOT_TIME);
 127         if (ret < 0)
 128                 return ret;
 129
 130         ret = wl1251_acx_group_address_tbl(wl, true, NULL, 0);
 131         if (ret < 0)
 132                 return ret;
 133
 134         ret = wl1251_acx_service_period_timeout(wl);
 135         if (ret < 0)
 136                 return ret;
 137
 138         ret = wl1251_acx_rts_threshold(wl, RTS_THRESHOLD_DEF);
 139         if (ret < 0)
 140                 return ret;
 141
 142         return 0;
 143 }
 144
 145 int wl1251_hw_init_beacon_filter(struct wl1251 *wl)
 146 {
 147         int ret;
 148
 149         /* disable beacon filtering at this stage */
 150         ret = wl1251_acx_beacon_filter_opt(wl, false);
 151         if (ret < 0)
 152                 return ret;
 153
 154         ret = wl1251_acx_beacon_filter_table(wl);
 155         if (ret < 0)
 156                 return ret;
 157
 158         return 0;
 159 }
 160
 161 int wl1251_hw_init_pta(struct wl1251 *wl)
 162 {
 163         int ret;
 164
 165         ret = wl1251_acx_sg_enable(wl);
 166         if (ret < 0)
 167                 return ret;
 168
 169         ret = wl1251_acx_sg_cfg(wl);
 170         if (ret < 0)
 171                 return ret;
 172
 173         return 0;
 174 }
 175
 176 int wl1251_hw_init_energy_detection(struct wl1251 *wl)
 177 {
 178         int ret;
 179
 180         ret = wl1251_acx_cca_threshold(wl);
 181         if (ret < 0)
 182                 return ret;
 183
 184         return 0;
 185 }
 186
 187 int wl1251_hw_init_beacon_broadcast(struct wl1251 *wl)
 188 {
 189         int ret;
 190
 191         ret = wl1251_acx_bcn_dtim_options(wl);
 192         if (ret < 0)
 193                 return ret;
 194
 195         return 0;
 196 }
 197
 198 int wl1251_hw_init_power_auth(struct wl1251 *wl)
 199 {
 200         return wl1251_acx_sleep_auth(wl, WL1251_PSM_CAM);
 201 }
 202
 203 int wl1251_hw_init_mem_config(struct wl1251 *wl)
 204 {
 205         int ret;
 206
 207         ret = wl1251_acx_mem_cfg(wl);
 208         if (ret < 0)
 209                 return ret;
 210
 211         wl->target_mem_map = kzalloc(sizeof(struct wl1251_acx_mem_map),
 212                                           GFP_KERNEL);
 213         if (!wl->target_mem_map) {
 214                 wl1251_error("couldn't allocate target memory map");
 215                 return -ENOMEM;
 216         }
 217
 218         /* we now ask for the firmware built memory map */
 219         ret = wl1251_acx_mem_map(wl, wl->target_mem_map,
 220                                  sizeof(struct wl1251_acx_mem_map));
 221         if (ret < 0) {
 222                 wl1251_error("couldn't retrieve firmware memory map");
 223                 kfree(wl->target_mem_map);
 224                 wl->target_mem_map = NULL;
 225                 return ret;
 226         }
 227
 228         return 0;
 229 }
 230
 231 static int wl1251_hw_init_txq_fill(u8 qid,
 232                                    struct acx_tx_queue_qos_config *config,
 233                                    u32 num_blocks)
 234 {
 235         config->qid = qid;
 236
 237         switch (qid) {
 238         case QOS_AC_BE:
 239                 config->high_threshold =
 240                         (QOS_TX_HIGH_BE_DEF * num_blocks) / 100;
 241                 config->low_threshold =
 242                         (QOS_TX_LOW_BE_DEF * num_blocks) / 100;
 243                 break;
 244         case QOS_AC_BK:
 245                 config->high_threshold =
 246                         (QOS_TX_HIGH_BK_DEF * num_blocks) / 100;
 247                 config->low_threshold =
 248                         (QOS_TX_LOW_BK_DEF * num_blocks) / 100;
 249                 break;
 250         case QOS_AC_VI:
 251                 config->high_threshold =
 252                         (QOS_TX_HIGH_VI_DEF * num_blocks) / 100;
 253                 config->low_threshold =
 254                         (QOS_TX_LOW_VI_DEF * num_blocks) / 100;
 255                 break;
 256         case QOS_AC_VO:
 257                 config->high_threshold =
 258                         (QOS_TX_HIGH_VO_DEF * num_blocks) / 100;
 259                 config->low_threshold =
 260                         (QOS_TX_LOW_VO_DEF * num_blocks) / 100;
 261                 break;
 262         default:
 263                 wl1251_error("Invalid TX queue id: %d", qid);
 264                 return -EINVAL;
 265         }
 266
 267         return 0;
 268 }
 269
 270 static int wl1251_hw_init_tx_queue_config(struct wl1251 *wl)
 271 {
 272         struct acx_tx_queue_qos_config *config;
 273         struct wl1251_acx_mem_map *wl_mem_map = wl->target_mem_map;
 274         int ret, i;
 275
 276         wl1251_debug(DEBUG_ACX, "acx tx queue config");
 277
 278         config = kzalloc(sizeof(*config), GFP_KERNEL);
 279         if (!config) {
 280                 ret = -ENOMEM;
 281                 goto out;
 282         }
 283
 284         for (i = 0; i < MAX_NUM_OF_AC; i++) {
 285                 ret = wl1251_hw_init_txq_fill(i, config,
 286                                               wl_mem_map->num_tx_mem_blocks);
 287                 if (ret < 0)
 288                         goto out;
 289
 290                 ret = wl1251_cmd_configure(wl, ACX_TX_QUEUE_CFG,
 291                                            config, sizeof(*config));
 292                 if (ret < 0)
 293                         goto out;
 294         }
 295
 296         wl1251_acx_ac_cfg(wl, AC_BE, CWMIN_BE, CWMAX_BE, AIFS_DIFS, TXOP_BE);
 297         wl1251_acx_ac_cfg(wl, AC_BK, CWMIN_BK, CWMAX_BK, AIFS_DIFS, TXOP_BK);
 298         wl1251_acx_ac_cfg(wl, AC_VI, CWMIN_VI, CWMAX_VI, AIFS_DIFS, TXOP_VI);
 299         wl1251_acx_ac_cfg(wl, AC_VO, CWMIN_VO, CWMAX_VO, AIFS_DIFS, TXOP_VO);
 300
 301 out:
 302         kfree(config);
 303         return ret;
 304 }
 305
 306 static int wl1251_hw_init_data_path_config(struct wl1251 *wl)
 307 {
 308         int ret;
 309
 310         /* asking for the data path parameters */
 311         wl->data_path = kzalloc(sizeof(struct acx_data_path_params_resp),
 312                                 GFP_KERNEL);
 313         if (!wl->data_path) {
 314                 wl1251_error("Couldnt allocate data path parameters");
 315                 return -ENOMEM;
 316         }
 317
 318         ret = wl1251_acx_data_path_params(wl, wl->data_path);
 319         if (ret < 0) {
 320                 kfree(wl->data_path);
 321                 wl->data_path = NULL;
 322                 return ret;
 323         }
 324
 325         return 0;
 326 }
 327
 328
 329 int wl1251_hw_init(struct wl1251 *wl)
 330 {
 331         struct wl1251_acx_mem_map *wl_mem_map;
 332         int ret;
 333
 334         ret = wl1251_hw_init_hwenc_config(wl);
 335         if (ret < 0)
 336                 return ret;
 337
 338         /* Template settings */
 339         ret = wl1251_hw_init_templates_config(wl);
 340         if (ret < 0)
 341                 return ret;
 342
 343         /* Default memory configuration */
 344         ret = wl1251_hw_init_mem_config(wl);
 345         if (ret < 0)
 346                 return ret;
 347
 348         /* Default data path configuration  */
 349         ret = wl1251_hw_init_data_path_config(wl);
 350         if (ret < 0)
 351                 goto out_free_memmap;
 352
 353         /* RX config */
 354         ret = wl1251_hw_init_rx_config(wl,
 355                                        RX_CFG_PROMISCUOUS | RX_CFG_TSF,
 356                                        RX_FILTER_OPTION_DEF);
 357         /* RX_CONFIG_OPTION_ANY_DST_ANY_BSS,
 358            RX_FILTER_OPTION_FILTER_ALL); */
 359         if (ret < 0)
 360                 goto out_free_data_path;
 361
 362         /* TX queues config */
 363         ret = wl1251_hw_init_tx_queue_config(wl);
 364         if (ret < 0)
 365                 goto out_free_data_path;
 366
 367         /* PHY layer config */
 368         ret = wl1251_hw_init_phy_config(wl);
 369         if (ret < 0)
 370                 goto out_free_data_path;
 371
 372         /* Initialize connection monitoring thresholds */
 373         ret = wl1251_acx_conn_monit_params(wl);
 374         if (ret < 0)
 375                 goto out_free_data_path;
 376
 377         /* Beacon filtering */
 378         ret = wl1251_hw_init_beacon_filter(wl);
 379         if (ret < 0)
 380                 goto out_free_data_path;
 381
 382         /* Bluetooth WLAN coexistence */
 383         ret = wl1251_hw_init_pta(wl);
 384         if (ret < 0)
 385                 goto out_free_data_path;
 386
 387         /* Energy detection */
 388         ret = wl1251_hw_init_energy_detection(wl);
 389         if (ret < 0)
 390                 goto out_free_data_path;
 391
 392         /* Beacons and boradcast settings */
 393         ret = wl1251_hw_init_beacon_broadcast(wl);
 394         if (ret < 0)
 395                 goto out_free_data_path;
 396
 397         /* Enable rx data path */
 398         ret = wl1251_cmd_data_path_rx(wl, wl->channel, 1);
 399         if (ret < 0)
 400                 goto out_free_data_path;
 401
 402         /* Enable tx data path */
 403         ret = wl1251_cmd_data_path_tx(wl, wl->channel, 1);
 404         if (ret < 0)
 405                 goto out_free_data_path;
 406
 407         /* Default power state */
 408         ret = wl1251_hw_init_power_auth(wl);
 409         if (ret < 0)
 410                 goto out_free_data_path;
 411
 412         wl_mem_map = wl->target_mem_map;
 413         wl1251_info("%d tx blocks at 0x%x, %d rx blocks at 0x%x",
 414                     wl_mem_map->num_tx_mem_blocks,
 415                     wl->data_path->tx_control_addr,
 416                     wl_mem_map->num_rx_mem_blocks,
 417                     wl->data_path->rx_control_addr);
 418
 419         return 0;
 420
 421  out_free_data_path:
 422         kfree(wl->data_path);
 423
 424  out_free_memmap:
 425         kfree(wl->target_mem_map);
 426
 427         return ret;
 428 }