drivers/staging/wilc1000/wilc_wlan_cfg.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2012 - 2018 Microchip Technology Inc., and its subsidiaries.
   4  * All rights reserved.
   5  */
   6
   7 #include "wilc_wlan_if.h"
   8 #include "wilc_wlan.h"
   9 #include "wilc_wlan_cfg.h"
  10 #include "coreconfigurator.h"
  11
  12 enum cfg_cmd_type {
  13         CFG_BYTE_CMD    = 0,
  14         CFG_HWORD_CMD   = 1,
  15         CFG_WORD_CMD    = 2,
  16         CFG_STR_CMD     = 3,
  17         CFG_BIN_CMD     = 4
  18 };
  19
  20 struct wilc_mac_cfg {
  21         int mac_status;
  22         u8 mac_address[7];
  23         u8 ip_address[5];
  24         u8 bssid[7];
  25         u8 ssid[34];
  26         u8 firmware_version[129];
  27         u8 supp_rate[24];
  28         u8 wep_key[28];
  29         u8 i_psk[66];
  30         u8 hw_product_version[33];
  31         u8 phyversion[17];
  32         u8 supp_username[21];
  33         u8 supp_password[64];
  34         u8 assoc_req[256];
  35         u8 assoc_rsp[256];
  36         u8 firmware_info[8];
  37         u8 scan_result[256];
  38         u8 scan_result1[256];
  39 };
  40
  41 static struct wilc_mac_cfg g_mac;
  42
  43 static struct wilc_cfg_byte g_cfg_byte[] = {
  44         {WID_BSS_TYPE, 0},
  45         {WID_CURRENT_TX_RATE, 0},
  46         {WID_CURRENT_CHANNEL, 0},
  47         {WID_PREAMBLE, 0},
  48         {WID_11G_OPERATING_MODE, 0},
  49         {WID_STATUS, 0},
  50         {WID_SCAN_TYPE, 0},
  51         {WID_KEY_ID, 0},
  52         {WID_QOS_ENABLE, 0},
  53         {WID_POWER_MANAGEMENT, 0},
  54         {WID_11I_MODE, 0},
  55         {WID_AUTH_TYPE, 0},
  56         {WID_SITE_SURVEY, 0},
  57         {WID_LISTEN_INTERVAL, 0},
  58         {WID_DTIM_PERIOD, 0},
  59         {WID_ACK_POLICY, 0},
  60         {WID_BCAST_SSID, 0},
  61         {WID_REKEY_POLICY, 0},
  62         {WID_SHORT_SLOT_ALLOWED, 0},
  63         {WID_START_SCAN_REQ, 0},
  64         {WID_RSSI, 0},
  65         {WID_LINKSPEED, 0},
  66         {WID_AUTO_RX_SENSITIVITY, 0},
  67         {WID_DATAFLOW_CONTROL, 0},
  68         {WID_SCAN_FILTER, 0},
  69         {WID_11N_PROT_MECH, 0},
  70         {WID_11N_ERP_PROT_TYPE, 0},
  71         {WID_11N_ENABLE, 0},
  72         {WID_11N_OPERATING_MODE, 0},
  73         {WID_11N_OBSS_NONHT_DETECTION, 0},
  74         {WID_11N_HT_PROT_TYPE, 0},
  75         {WID_11N_RIFS_PROT_ENABLE, 0},
  76         {WID_11N_SMPS_MODE, 0},
  77         {WID_11N_CURRENT_TX_MCS, 0},
  78         {WID_11N_SHORT_GI_ENABLE, 0},
  79         {WID_RIFS_MODE, 0},
  80         {WID_TX_ABORT_CONFIG, 0},
  81         {WID_11N_IMMEDIATE_BA_ENABLED, 0},
  82         {WID_11N_TXOP_PROT_DISABLE, 0},
  83         {WID_NIL, 0}
  84 };
  85
  86 static struct wilc_cfg_hword g_cfg_hword[] = {
  87         {WID_LINK_LOSS_THRESHOLD, 0},
  88         {WID_RTS_THRESHOLD, 0},
  89         {WID_FRAG_THRESHOLD, 0},
  90         {WID_SHORT_RETRY_LIMIT, 0},
  91         {WID_LONG_RETRY_LIMIT, 0},
  92         {WID_BEACON_INTERVAL, 0},
  93         {WID_RX_SENSE, 0},
  94         {WID_ACTIVE_SCAN_TIME, 0},
  95         {WID_PASSIVE_SCAN_TIME, 0},
  96         {WID_SITE_SURVEY_SCAN_TIME, 0},
  97         {WID_JOIN_START_TIMEOUT, 0},
  98         {WID_AUTH_TIMEOUT, 0},
  99         {WID_ASOC_TIMEOUT, 0},
 100         {WID_11I_PROTOCOL_TIMEOUT, 0},
 101         {WID_EAPOL_RESPONSE_TIMEOUT, 0},
 102         {WID_11N_SIG_QUAL_VAL, 0},
 103         {WID_CCA_THRESHOLD, 0},
 104         {WID_NIL, 0}
 105 };
 106
 107 static struct wilc_cfg_word g_cfg_word[] = {
 108         {WID_FAILED_COUNT, 0},
 109         {WID_RETRY_COUNT, 0},
 110         {WID_MULTIPLE_RETRY_COUNT, 0},
 111         {WID_FRAME_DUPLICATE_COUNT, 0},
 112         {WID_ACK_FAILURE_COUNT, 0},
 113         {WID_RECEIVED_FRAGMENT_COUNT, 0},
 114         {WID_MCAST_RECEIVED_FRAME_COUNT, 0},
 115         {WID_FCS_ERROR_COUNT, 0},
 116         {WID_SUCCESS_FRAME_COUNT, 0},
 117         {WID_TX_FRAGMENT_COUNT, 0},
 118         {WID_TX_MULTICAST_FRAME_COUNT, 0},
 119         {WID_RTS_SUCCESS_COUNT, 0},
 120         {WID_RTS_FAILURE_COUNT, 0},
 121         {WID_WEP_UNDECRYPTABLE_COUNT, 0},
 122         {WID_REKEY_PERIOD, 0},
 123         {WID_REKEY_PACKET_COUNT, 0},
 124         {WID_HW_RX_COUNT, 0},
 125         {WID_GET_INACTIVE_TIME, 0},
 126         {WID_NIL, 0}
 127
 128 };
 129
 130 static struct wilc_cfg_str g_cfg_str[] = {
 131         {WID_SSID, g_mac.ssid}, /* 33 + 1 bytes */
 132         {WID_FIRMWARE_VERSION, g_mac.firmware_version},
 133         {WID_OPERATIONAL_RATE_SET, g_mac.supp_rate},
 134         {WID_BSSID, g_mac.bssid},       /* 6 bytes */
 135         {WID_WEP_KEY_VALUE, g_mac.wep_key},     /* 27 bytes */
 136         {WID_11I_PSK, g_mac.i_psk},     /* 65 bytes */
 137         {WID_HARDWARE_VERSION, g_mac.hw_product_version},
 138         {WID_MAC_ADDR, g_mac.mac_address},
 139         {WID_PHY_VERSION, g_mac.phyversion},
 140         {WID_SUPP_USERNAME, g_mac.supp_username},
 141         {WID_SUPP_PASSWORD, g_mac.supp_password},
 142         {WID_SITE_SURVEY_RESULTS, g_mac.scan_result},
 143         {WID_SITE_SURVEY_RESULTS, g_mac.scan_result1},
 144         {WID_ASSOC_REQ_INFO, g_mac.assoc_req},
 145         {WID_ASSOC_RES_INFO, g_mac.assoc_rsp},
 146         {WID_FIRMWARE_INFO, g_mac.firmware_version},
 147         {WID_IP_ADDRESS, g_mac.ip_address},
 148         {WID_NIL, NULL}
 149 };
 150
 151 /********************************************
 152  *
 153  *      Configuration Functions
 154  *
 155  ********************************************/
 156
 157 static int wilc_wlan_cfg_set_byte(u8 *frame, u32 offset, u16 id, u8 val8)
 158 {
 159         u8 *buf;
 160
 161         if ((offset + 4) >= MAX_CFG_FRAME_SIZE)
 162                 return 0;
 163
 164         buf = &frame[offset];
 165
 166         buf[0] = (u8)id;
 167         buf[1] = (u8)(id >> 8);
 168         buf[2] = 1;
 169         buf[3] = 0;
 170         buf[4] = val8;
 171         return 5;
 172 }
 173
 174 static int wilc_wlan_cfg_set_hword(u8 *frame, u32 offset, u16 id, u16 val16)
 175 {
 176         u8 *buf;
 177
 178         if ((offset + 5) >= MAX_CFG_FRAME_SIZE)
 179                 return 0;
 180
 181         buf = &frame[offset];
 182
 183         buf[0] = (u8)id;
 184         buf[1] = (u8)(id >> 8);
 185         buf[2] = 2;
 186         buf[3] = 0;
 187         buf[4] = (u8)val16;
 188         buf[5] = (u8)(val16 >> 8);
 189
 190         return 6;
 191 }
 192
 193 static int wilc_wlan_cfg_set_word(u8 *frame, u32 offset, u16 id, u32 val32)
 194 {
 195         u8 *buf;
 196
 197         if ((offset + 7) >= MAX_CFG_FRAME_SIZE)
 198                 return 0;
 199
 200         buf = &frame[offset];
 201
 202         buf[0] = (u8)id;
 203         buf[1] = (u8)(id >> 8);
 204         buf[2] = 4;
 205         buf[3] = 0;
 206         buf[4] = (u8)val32;
 207         buf[5] = (u8)(val32 >> 8);
 208         buf[6] = (u8)(val32 >> 16);
 209         buf[7] = (u8)(val32 >> 24);
 210
 211         return 8;
 212 }
 213
 214 static int wilc_wlan_cfg_set_str(u8 *frame, u32 offset, u16 id, u8 *str,
 215                                  u32 size)
 216 {
 217         u8 *buf;
 218
 219         if ((offset + size + 4) >= MAX_CFG_FRAME_SIZE)
 220                 return 0;
 221
 222         buf = &frame[offset];
 223
 224         buf[0] = (u8)id;
 225         buf[1] = (u8)(id >> 8);
 226         buf[2] = (u8)size;
 227         buf[3] = (u8)(size >> 8);
 228
 229         if (str && size != 0)
 230                 memcpy(&buf[4], str, size);
 231
 232         return (size + 4);
 233 }
 234
 235 static int wilc_wlan_cfg_set_bin(u8 *frame, u32 offset, u16 id, u8 *b, u32 size)
 236 {
 237         u8 *buf;
 238         u32 i;
 239         u8 checksum = 0;
 240
 241         if ((offset + size + 5) >= MAX_CFG_FRAME_SIZE)
 242                 return 0;
 243
 244         buf = &frame[offset];
 245         buf[0] = (u8)id;
 246         buf[1] = (u8)(id >> 8);
 247         buf[2] = (u8)size;
 248         buf[3] = (u8)(size >> 8);
 249
 250         if ((b) && size != 0) {
 251                 memcpy(&buf[4], b, size);
 252                 for (i = 0; i < size; i++)
 253                         checksum += buf[i + 4];
 254         }
 255
 256         buf[size + 4] = checksum;
 257
 258         return (size + 5);
 259 }
 260
 261 /********************************************
 262  *
 263  *      Configuration Response Functions
 264  *
 265  ********************************************/
 266
 267 #define GET_WID_TYPE(wid)               (((wid) >> 12) & 0x7)
 268 static void wilc_wlan_parse_response_frame(u8 *info, int size)
 269 {
 270         u16 wid;
 271         u32 len = 0, i = 0;
 272
 273         while (size > 0) {
 274                 i = 0;
 275                 wid = info[0] | (info[1] << 8);
 276
 277                 switch (GET_WID_TYPE(wid)) {
 278                 case WID_CHAR:
 279                         do {
 280                                 if (g_cfg_byte[i].id == WID_NIL)
 281                                         break;
 282
 283                                 if (g_cfg_byte[i].id == wid) {
 284                                         g_cfg_byte[i].val = info[4];
 285                                         break;
 286                                 }
 287                                 i++;
 288                         } while (1);
 289                         len = 3;
 290                         break;
 291
 292                 case WID_SHORT:
 293                         do {
 294                                 if (g_cfg_hword[i].id == WID_NIL)
 295                                         break;
 296
 297                                 if (g_cfg_hword[i].id == wid) {
 298                                         g_cfg_hword[i].val = (info[4] |
 299                                                               (info[5] << 8));
 300                                         break;
 301                                 }
 302                                 i++;
 303                         } while (1);
 304                         len = 4;
 305                         break;
 306
 307                 case WID_INT:
 308                         do {
 309                                 if (g_cfg_word[i].id == WID_NIL)
 310                                         break;
 311
 312                                 if (g_cfg_word[i].id == wid) {
 313                                         g_cfg_word[i].val = (info[4] |
 314                                                              (info[5] << 8) |
 315                                                              (info[6] << 16) |
 316                                                              (info[7] << 24));
 317                                         break;
 318                                 }
 319                                 i++;
 320                         } while (1);
 321                         len = 6;
 322                         break;
 323
 324                 case WID_STR:
 325                         do {
 326                                 if (g_cfg_str[i].id == WID_NIL)
 327                                         break;
 328
 329                                 if (g_cfg_str[i].id == wid) {
 330                                         if (wid == WID_SITE_SURVEY_RESULTS) {
 331                                                 static int toggle;
 332
 333                                                 i += toggle;
 334                                                 toggle ^= 1;
 335                                         }
 336                                         memcpy(g_cfg_str[i].str, &info[2],
 337                                                (info[2] + 2));
 338                                         break;
 339                                 }
 340                                 i++;
 341                         } while (1);
 342                         len = 2 + info[2];
 343                         break;
 344
 345                 default:
 346                         break;
 347                 }
 348                 size -= (2 + len);
 349                 info += (2 + len);
 350         }
 351 }
 352
 353 static int wilc_wlan_parse_info_frame(u8 *info, int size)
 354 {
 355         struct wilc_mac_cfg *pd = &g_mac;
 356         u32 wid, len;
 357         int type = WILC_CFG_RSP_STATUS;
 358
 359         wid = info[0] | (info[1] << 8);
 360
 361         len = info[2];
 362
 363         if (len == 1 && wid == WID_STATUS) {
 364                 pd->mac_status = info[3];
 365                 type = WILC_CFG_RSP_STATUS;
 366         }
 367
 368         return type;
 369 }
 370
 371 /********************************************
 372  *
 373  *      Configuration Exported Functions
 374  *
 375  ********************************************/
 376
 377 int wilc_wlan_cfg_set_wid(u8 *frame, u32 offset, u16 id, u8 *buf, int size)
 378 {
 379         u8 type = (id >> 12) & 0xf;
 380         int ret = 0;
 381
 382         switch (type) {
 383         case CFG_BYTE_CMD:
 384                 if (size >= 1)
 385                         ret = wilc_wlan_cfg_set_byte(frame, offset, id, *buf);
 386                 break;
 387
 388         case CFG_HWORD_CMD:
 389                 if (size >= 2)
 390                         ret = wilc_wlan_cfg_set_hword(frame, offset, id,
 391                                                       *((u16 *)buf));
 392                 break;
 393
 394         case CFG_WORD_CMD:
 395                 if (size >= 4)
 396                         ret = wilc_wlan_cfg_set_word(frame, offset, id,
 397                                                      *((u32 *)buf));
 398                 break;
 399
 400         case CFG_STR_CMD:
 401                 ret = wilc_wlan_cfg_set_str(frame, offset, id, buf, size);
 402                 break;
 403
 404         case CFG_BIN_CMD:
 405                 ret = wilc_wlan_cfg_set_bin(frame, offset, id, buf, size);
 406                 break;
 407         }
 408
 409         return ret;
 410 }
 411
 412 int wilc_wlan_cfg_get_wid(u8 *frame, u32 offset, u16 id)
 413 {
 414         u8 *buf;
 415
 416         if ((offset + 2) >= MAX_CFG_FRAME_SIZE)
 417                 return 0;
 418
 419         buf = &frame[offset];
 420
 421         buf[0] = (u8)id;
 422         buf[1] = (u8)(id >> 8);
 423
 424         return 2;
 425 }
 426
 427 int wilc_wlan_cfg_get_wid_value(u16 wid, u8 *buffer, u32 buffer_size)
 428 {
 429         u32 type = (wid >> 12) & 0xf;
 430         int i, ret = 0;
 431
 432         if (wid == WID_STATUS) {
 433                 *((u32 *)buffer) = g_mac.mac_status;
 434                 return 4;
 435         }
 436
 437         i = 0;
 438         if (type == CFG_BYTE_CMD) {
 439                 do {
 440                         if (g_cfg_byte[i].id == WID_NIL)
 441                                 break;
 442
 443                         if (g_cfg_byte[i].id == wid) {
 444                                 memcpy(buffer,  &g_cfg_byte[i].val, 1);
 445                                 ret = 1;
 446                                 break;
 447                         }
 448                         i++;
 449                 } while (1);
 450         } else if (type == CFG_HWORD_CMD) {
 451                 do {
 452                         if (g_cfg_hword[i].id == WID_NIL)
 453                                 break;
 454
 455                         if (g_cfg_hword[i].id == wid) {
 456                                 memcpy(buffer,  &g_cfg_hword[i].val, 2);
 457                                 ret = 2;
 458                                 break;
 459                         }
 460                         i++;
 461                 } while (1);
 462         } else if (type == CFG_WORD_CMD) {
 463                 do {
 464                         if (g_cfg_word[i].id == WID_NIL)
 465                                 break;
 466
 467                         if (g_cfg_word[i].id == wid) {
 468                                 memcpy(buffer,  &g_cfg_word[i].val, 4);
 469                                 ret = 4;
 470                                 break;
 471                         }
 472                         i++;
 473                 } while (1);
 474         } else if (type == CFG_STR_CMD) {
 475                 do {
 476                         u32 id = g_cfg_str[i].id;
 477
 478                         if (id == WID_NIL)
 479                                 break;
 480
 481                         if (id == wid) {
 482                                 u32 size = g_cfg_str[i].str[0] |
 483                                                 (g_cfg_str[i].str[1] << 8);
 484
 485                                 if (buffer_size >= size) {
 486                                         if (id == WID_SITE_SURVEY_RESULTS) {
 487                                                 static int toggle;
 488
 489                                                 i += toggle;
 490                                                 toggle ^= 1;
 491                                         }
 492                                         memcpy(buffer,  &g_cfg_str[i].str[2],
 493                                                size);
 494                                         ret = size;
 495                                 }
 496                                 break;
 497                         }
 498                         i++;
 499                 } while (1);
 500         }
 501
 502         return ret;
 503 }
 504
 505 int wilc_wlan_cfg_indicate_rx(struct wilc *wilc, u8 *frame, int size,
 506                               struct wilc_cfg_rsp *rsp)
 507 {
 508         int ret = 1;
 509         u8 msg_type;
 510         u8 msg_id;
 511
 512         msg_type = frame[0];
 513         msg_id = frame[1];      /* seq no */
 514         frame += 4;
 515         size -= 4;
 516
 517         /*
 518          * The valid types of response messages are
 519          * 'R' (Response),
 520          * 'I' (Information), and
 521          * 'N' (Network Information)
 522          */
 523
 524         switch (msg_type) {
 525         case 'R':
 526                 wilc_wlan_parse_response_frame(frame, size);
 527                 rsp->type = WILC_CFG_RSP;
 528                 rsp->seq_no = msg_id;
 529                 break;
 530
 531         case 'I':
 532                 rsp->type = wilc_wlan_parse_info_frame(frame, size);
 533                 rsp->seq_no = msg_id;
 534                 /*call host interface info parse as well*/
 535                 wilc_gnrl_async_info_received(wilc, frame - 4, size + 4);
 536                 break;
 537
 538         case 'N':
 539                 wilc_network_info_received(wilc, frame - 4, size + 4);
 540                 rsp->type = 0;
 541                 break;
 542
 543         case 'S':
 544                 wilc_scan_complete_received(wilc, frame - 4, size + 4);
 545                 break;
 546
 547         default:
 548                 rsp->type = 0;
 549                 rsp->seq_no = msg_id;
 550                 ret = 0;
 551                 break;
 552         }
 553
 554         return ret;
 555 }
 556
 557 int wilc_wlan_cfg_init(void)
 558 {
 559         memset((void *)&g_mac, 0, sizeof(struct wilc_mac_cfg));
 560         return 1;
 561 }