drivers/staging/wilc1000/wilc_wlan_cfg.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* ////////////////////////////////////////////////////////////////////////// */
   3 /*  */
   4 /* Copyright (c) Atmel Corporation.  All rights reserved. */
   5 /*  */
   6 /* Module Name:  wilc_wlan_cfg.c */
   7 /*  */
   8 /*  */
   9 /* ///////////////////////////////////////////////////////////////////////// */
  10
  11 #include <linux/string.h>
  12 #include "wilc_wlan_if.h"
  13 #include "wilc_wlan.h"
  14 #include "wilc_wlan_cfg.h"
  15 #include "coreconfigurator.h"
  16
  17 /********************************************
  18  *
  19  *      Global Data
  20  *
  21  ********************************************/
  22 enum cfg_cmd_type {
  23         CFG_BYTE_CMD    = 0,
  24         CFG_HWORD_CMD   = 1,
  25         CFG_WORD_CMD    = 2,
  26         CFG_STR_CMD     = 3,
  27         CFG_BIN_CMD     = 4
  28 };
  29
  30 struct wilc_mac_cfg {
  31         int mac_status;
  32         u8 mac_address[7];
  33         u8 ip_address[5];
  34         u8 bssid[7];
  35         u8 ssid[34];
  36         u8 firmware_version[129];
  37         u8 supp_rate[24];
  38         u8 wep_key[28];
  39         u8 i_psk[66];
  40         u8 hw_product_version[33];
  41         u8 phyversion[17];
  42         u8 supp_username[21];
  43         u8 supp_password[64];
  44         u8 assoc_req[256];
  45         u8 assoc_rsp[256];
  46         u8 firmware_info[8];
  47         u8 scan_result[256];
  48         u8 scan_result1[256];
  49 };
  50
  51 static struct wilc_mac_cfg g_mac;
  52
  53 static struct wilc_cfg_byte g_cfg_byte[] = {
  54         {WID_BSS_TYPE, 0},
  55         {WID_CURRENT_TX_RATE, 0},
  56         {WID_CURRENT_CHANNEL, 0},
  57         {WID_PREAMBLE, 0},
  58         {WID_11G_OPERATING_MODE, 0},
  59         {WID_STATUS, 0},
  60         {WID_SCAN_TYPE, 0},
  61         {WID_KEY_ID, 0},
  62         {WID_QOS_ENABLE, 0},
  63         {WID_POWER_MANAGEMENT, 0},
  64         {WID_11I_MODE, 0},
  65         {WID_AUTH_TYPE, 0},
  66         {WID_SITE_SURVEY, 0},
  67         {WID_LISTEN_INTERVAL, 0},
  68         {WID_DTIM_PERIOD, 0},
  69         {WID_ACK_POLICY, 0},
  70         {WID_BCAST_SSID, 0},
  71         {WID_REKEY_POLICY, 0},
  72         {WID_SHORT_SLOT_ALLOWED, 0},
  73         {WID_START_SCAN_REQ, 0},
  74         {WID_RSSI, 0},
  75         {WID_LINKSPEED, 0},
  76         {WID_AUTO_RX_SENSITIVITY, 0},
  77         {WID_DATAFLOW_CONTROL, 0},
  78         {WID_SCAN_FILTER, 0},
  79         {WID_11N_PROT_MECH, 0},
  80         {WID_11N_ERP_PROT_TYPE, 0},
  81         {WID_11N_ENABLE, 0},
  82         {WID_11N_OPERATING_MODE, 0},
  83         {WID_11N_OBSS_NONHT_DETECTION, 0},
  84         {WID_11N_HT_PROT_TYPE, 0},
  85         {WID_11N_RIFS_PROT_ENABLE, 0},
  86         {WID_11N_SMPS_MODE, 0},
  87         {WID_11N_CURRENT_TX_MCS, 0},
  88         {WID_11N_SHORT_GI_ENABLE, 0},
  89         {WID_RIFS_MODE, 0},
  90         {WID_TX_ABORT_CONFIG, 0},
  91         {WID_11N_IMMEDIATE_BA_ENABLED, 0},
  92         {WID_11N_TXOP_PROT_DISABLE, 0},
  93         {WID_NIL, 0}
  94 };
  95
  96 static struct wilc_cfg_hword g_cfg_hword[] = {
  97         {WID_LINK_LOSS_THRESHOLD, 0},
  98         {WID_RTS_THRESHOLD, 0},
  99         {WID_FRAG_THRESHOLD, 0},
 100         {WID_SHORT_RETRY_LIMIT, 0},
 101         {WID_LONG_RETRY_LIMIT, 0},
 102         {WID_BEACON_INTERVAL, 0},
 103         {WID_RX_SENSE, 0},
 104         {WID_ACTIVE_SCAN_TIME, 0},
 105         {WID_PASSIVE_SCAN_TIME, 0},
 106         {WID_SITE_SURVEY_SCAN_TIME, 0},
 107         {WID_JOIN_START_TIMEOUT, 0},
 108         {WID_AUTH_TIMEOUT, 0},
 109         {WID_ASOC_TIMEOUT, 0},
 110         {WID_11I_PROTOCOL_TIMEOUT, 0},
 111         {WID_EAPOL_RESPONSE_TIMEOUT, 0},
 112         {WID_11N_SIG_QUAL_VAL, 0},
 113         {WID_CCA_THRESHOLD, 0},
 114         {WID_NIL, 0}
 115 };
 116
 117 static struct wilc_cfg_word g_cfg_word[] = {
 118         {WID_FAILED_COUNT, 0},
 119         {WID_RETRY_COUNT, 0},
 120         {WID_MULTIPLE_RETRY_COUNT, 0},
 121         {WID_FRAME_DUPLICATE_COUNT, 0},
 122         {WID_ACK_FAILURE_COUNT, 0},
 123         {WID_RECEIVED_FRAGMENT_COUNT, 0},
 124         {WID_MCAST_RECEIVED_FRAME_COUNT, 0},
 125         {WID_FCS_ERROR_COUNT, 0},
 126         {WID_SUCCESS_FRAME_COUNT, 0},
 127         {WID_TX_FRAGMENT_COUNT, 0},
 128         {WID_TX_MULTICAST_FRAME_COUNT, 0},
 129         {WID_RTS_SUCCESS_COUNT, 0},
 130         {WID_RTS_FAILURE_COUNT, 0},
 131         {WID_WEP_UNDECRYPTABLE_COUNT, 0},
 132         {WID_REKEY_PERIOD, 0},
 133         {WID_REKEY_PACKET_COUNT, 0},
 134         {WID_HW_RX_COUNT, 0},
 135         {WID_GET_INACTIVE_TIME, 0},
 136         {WID_NIL, 0}
 137
 138 };
 139
 140 static struct wilc_cfg_str g_cfg_str[] = {
 141         {WID_SSID, g_mac.ssid}, /* 33 + 1 bytes */
 142         {WID_FIRMWARE_VERSION, g_mac.firmware_version},
 143         {WID_OPERATIONAL_RATE_SET, g_mac.supp_rate},
 144         {WID_BSSID, g_mac.bssid},       /* 6 bytes */
 145         {WID_WEP_KEY_VALUE, g_mac.wep_key},     /* 27 bytes */
 146         {WID_11I_PSK, g_mac.i_psk},     /* 65 bytes */
 147         {WID_HARDWARE_VERSION, g_mac.hw_product_version},
 148         {WID_MAC_ADDR, g_mac.mac_address},
 149         {WID_PHY_VERSION, g_mac.phyversion},
 150         {WID_SUPP_USERNAME, g_mac.supp_username},
 151         {WID_SUPP_PASSWORD, g_mac.supp_password},
 152         {WID_SITE_SURVEY_RESULTS, g_mac.scan_result},
 153         {WID_SITE_SURVEY_RESULTS, g_mac.scan_result1},
 154         {WID_ASSOC_REQ_INFO, g_mac.assoc_req},
 155         {WID_ASSOC_RES_INFO, g_mac.assoc_rsp},
 156         {WID_FIRMWARE_INFO, g_mac.firmware_version},
 157         {WID_IP_ADDRESS, g_mac.ip_address},
 158         {WID_NIL, NULL}
 159 };
 160
 161 /********************************************
 162  *
 163  *      Configuration Functions
 164  *
 165  ********************************************/
 166
 167 static int wilc_wlan_cfg_set_byte(u8 *frame, u32 offset, u16 id, u8 val8)
 168 {
 169         u8 *buf;
 170
 171         if ((offset + 4) >= MAX_CFG_FRAME_SIZE)
 172                 return 0;
 173
 174         buf = &frame[offset];
 175
 176         buf[0] = (u8)id;
 177         buf[1] = (u8)(id >> 8);
 178         buf[2] = 1;
 179         buf[3] = 0;
 180         buf[4] = val8;
 181         return 5;
 182 }
 183
 184 static int wilc_wlan_cfg_set_hword(u8 *frame, u32 offset, u16 id, u16 val16)
 185 {
 186         u8 *buf;
 187
 188         if ((offset + 5) >= MAX_CFG_FRAME_SIZE)
 189                 return 0;
 190
 191         buf = &frame[offset];
 192
 193         buf[0] = (u8)id;
 194         buf[1] = (u8)(id >> 8);
 195         buf[2] = 2;
 196         buf[3] = 0;
 197         buf[4] = (u8)val16;
 198         buf[5] = (u8)(val16 >> 8);
 199
 200         return 6;
 201 }
 202
 203 static int wilc_wlan_cfg_set_word(u8 *frame, u32 offset, u16 id, u32 val32)
 204 {
 205         u8 *buf;
 206
 207         if ((offset + 7) >= MAX_CFG_FRAME_SIZE)
 208                 return 0;
 209
 210         buf = &frame[offset];
 211
 212         buf[0] = (u8)id;
 213         buf[1] = (u8)(id >> 8);
 214         buf[2] = 4;
 215         buf[3] = 0;
 216         buf[4] = (u8)val32;
 217         buf[5] = (u8)(val32 >> 8);
 218         buf[6] = (u8)(val32 >> 16);
 219         buf[7] = (u8)(val32 >> 24);
 220
 221         return 8;
 222 }
 223
 224 static int wilc_wlan_cfg_set_str(u8 *frame, u32 offset, u16 id, u8 *str, u32 size)
 225 {
 226         u8 *buf;
 227
 228         if ((offset + size + 4) >= MAX_CFG_FRAME_SIZE)
 229                 return 0;
 230
 231         buf = &frame[offset];
 232
 233         buf[0] = (u8)id;
 234         buf[1] = (u8)(id >> 8);
 235         buf[2] = (u8)size;
 236         buf[3] = (u8)(size >> 8);
 237
 238         if ((str) && (size != 0))
 239                 memcpy(&buf[4], str, size);
 240
 241         return (size + 4);
 242 }
 243
 244 static int wilc_wlan_cfg_set_bin(u8 *frame, u32 offset, u16 id, u8 *b, u32 size)
 245 {
 246         u8 *buf;
 247         u32 i;
 248         u8 checksum = 0;
 249
 250         if ((offset + size + 5) >= MAX_CFG_FRAME_SIZE)
 251                 return 0;
 252
 253         buf = &frame[offset];
 254         buf[0] = (u8)id;
 255         buf[1] = (u8)(id >> 8);
 256         buf[2] = (u8)size;
 257         buf[3] = (u8)(size >> 8);
 258
 259         if ((b) && (size != 0)) {
 260                 memcpy(&buf[4], b, size);
 261                 for (i = 0; i < size; i++)
 262                         checksum += buf[i + 4];
 263         }
 264
 265         buf[size + 4] = checksum;
 266
 267         return (size + 5);
 268 }
 269
 270 /********************************************
 271  *
 272  *      Configuration Response Functions
 273  *
 274  ********************************************/
 275
 276 static void wilc_wlan_parse_response_frame(u8 *info, int size)
 277 {
 278         u32 wid, len = 0, i = 0;
 279
 280         while (size > 0) {
 281                 i = 0;
 282                 wid = info[0] | (info[1] << 8);
 283                 wid = cpu_to_le32(wid);
 284
 285                 switch ((wid >> 12) & 0x7) {
 286                 case WID_CHAR:
 287                         do {
 288                                 if (g_cfg_byte[i].id == WID_NIL)
 289                                         break;
 290
 291                                 if (g_cfg_byte[i].id == wid) {
 292                                         g_cfg_byte[i].val = info[4];
 293                                         break;
 294                                 }
 295                                 i++;
 296                         } while (1);
 297                         len = 3;
 298                         break;
 299
 300                 case WID_SHORT:
 301                         do {
 302                                 if (g_cfg_hword[i].id == WID_NIL)
 303                                         break;
 304
 305                                 if (g_cfg_hword[i].id == wid) {
 306                                         g_cfg_hword[i].val =
 307                                                 cpu_to_le16(info[4] |
 308                                                             (info[5] << 8));
 309                                         break;
 310                                 }
 311                                 i++;
 312                         } while (1);
 313                         len = 4;
 314                         break;
 315
 316                 case WID_INT:
 317                         do {
 318                                 if (g_cfg_word[i].id == WID_NIL)
 319                                         break;
 320
 321                                 if (g_cfg_word[i].id == wid) {
 322                                         g_cfg_word[i].val =
 323                                                 cpu_to_le32(info[4] |
 324                                                             (info[5] << 8) |
 325                                                             (info[6] << 16) |
 326                                                             (info[7] << 24));
 327                                         break;
 328                                 }
 329                                 i++;
 330                         } while (1);
 331                         len = 6;
 332                         break;
 333
 334                 case WID_STR:
 335                         do {
 336                                 if (g_cfg_str[i].id == WID_NIL)
 337                                         break;
 338
 339                                 if (g_cfg_str[i].id == wid) {
 340                                         if (wid == WID_SITE_SURVEY_RESULTS) {
 341                                                 static int toggle;
 342
 343                                                 i += toggle;
 344                                                 toggle ^= 1;
 345                                         }
 346                                         memcpy(g_cfg_str[i].str, &info[2],
 347                                                (info[2] + 2));
 348                                         break;
 349                                 }
 350                                 i++;
 351                         } while (1);
 352                         len = 2 + info[2];
 353                         break;
 354
 355                 default:
 356                         break;
 357                 }
 358                 size -= (2 + len);
 359                 info += (2 + len);
 360         }
 361 }
 362
 363 static int wilc_wlan_parse_info_frame(u8 *info, int size)
 364 {
 365         struct wilc_mac_cfg *pd = &g_mac;
 366         u32 wid, len;
 367         int type = WILC_CFG_RSP_STATUS;
 368
 369         wid = info[0] | (info[1] << 8);
 370
 371         len = info[2];
 372
 373         if ((len == 1) && (wid == WID_STATUS)) {
 374                 pd->mac_status = info[3];
 375                 type = WILC_CFG_RSP_STATUS;
 376         }
 377
 378         return type;
 379 }
 380
 381 /********************************************
 382  *
 383  *      Configuration Exported Functions
 384  *
 385  ********************************************/
 386
 387 int wilc_wlan_cfg_set_wid(u8 *frame, u32 offset, u16 id, u8 *buf, int size)
 388 {
 389         u8 type = (id >> 12) & 0xf;
 390         int ret = 0;
 391
 392         switch (type) {
 393         case CFG_BYTE_CMD:
 394                 if (size >= 1)
 395                         ret = wilc_wlan_cfg_set_byte(frame, offset, id, *buf);
 396                 break;
 397
 398         case CFG_HWORD_CMD:
 399                 if (size >= 2)
 400                         ret = wilc_wlan_cfg_set_hword(frame, offset, id,
 401                                                       *((u16 *)buf));
 402                 break;
 403
 404         case CFG_WORD_CMD:
 405                 if (size >= 4)
 406                         ret = wilc_wlan_cfg_set_word(frame, offset, id,
 407                                                      *((u32 *)buf));
 408                 break;
 409
 410         case CFG_STR_CMD:
 411                 ret = wilc_wlan_cfg_set_str(frame, offset, id, buf, size);
 412                 break;
 413
 414         case CFG_BIN_CMD:
 415                 ret = wilc_wlan_cfg_set_bin(frame, offset, id, buf, size);
 416                 break;
 417         }
 418
 419         return ret;
 420 }
 421
 422 int wilc_wlan_cfg_get_wid(u8 *frame, u32 offset, u16 id)
 423 {
 424         u8 *buf;
 425
 426         if ((offset + 2) >= MAX_CFG_FRAME_SIZE)
 427                 return 0;
 428
 429         buf = &frame[offset];
 430
 431         buf[0] = (u8)id;
 432         buf[1] = (u8)(id >> 8);
 433
 434         return 2;
 435 }
 436
 437 int wilc_wlan_cfg_get_wid_value(u16 wid, u8 *buffer, u32 buffer_size)
 438 {
 439         u32 type = (wid >> 12) & 0xf;
 440         int i, ret = 0;
 441
 442         if (wid == WID_STATUS) {
 443                 *((u32 *)buffer) = g_mac.mac_status;
 444                 return 4;
 445         }
 446
 447         i = 0;
 448         if (type == CFG_BYTE_CMD) {
 449                 do {
 450                         if (g_cfg_byte[i].id == WID_NIL)
 451                                 break;
 452
 453                         if (g_cfg_byte[i].id == wid) {
 454                                 memcpy(buffer,  &g_cfg_byte[i].val, 1);
 455                                 ret = 1;
 456                                 break;
 457                         }
 458                         i++;
 459                 } while (1);
 460         } else if (type == CFG_HWORD_CMD) {
 461                 do {
 462                         if (g_cfg_hword[i].id == WID_NIL)
 463                                 break;
 464
 465                         if (g_cfg_hword[i].id == wid) {
 466                                 memcpy(buffer,  &g_cfg_hword[i].val, 2);
 467                                 ret = 2;
 468                                 break;
 469                         }
 470                         i++;
 471                 } while (1);
 472         } else if (type == CFG_WORD_CMD) {
 473                 do {
 474                         if (g_cfg_word[i].id == WID_NIL)
 475                                 break;
 476
 477                         if (g_cfg_word[i].id == wid) {
 478                                 memcpy(buffer,  &g_cfg_word[i].val, 4);
 479                                 ret = 4;
 480                                 break;
 481                         }
 482                         i++;
 483                 } while (1);
 484         } else if (type == CFG_STR_CMD) {
 485                 do {
 486                         if (g_cfg_str[i].id == WID_NIL)
 487                                 break;
 488
 489                         if (g_cfg_str[i].id == wid) {
 490                                 u32 size = g_cfg_str[i].str[0] |
 491                                                 (g_cfg_str[i].str[1] << 8);
 492
 493                                 if (buffer_size >= size) {
 494                                         if (g_cfg_str[i].id == WID_SITE_SURVEY_RESULTS) {
 495                                                 static int toggle;
 496
 497                                                 i += toggle;
 498                                                 toggle ^= 1;
 499
 500                                         }
 501                                         memcpy(buffer,  &g_cfg_str[i].str[2],
 502                                                size);
 503                                         ret = size;
 504                                 }
 505                                 break;
 506                         }
 507                         i++;
 508                 } while (1);
 509         }
 510
 511         return ret;
 512 }
 513
 514 int wilc_wlan_cfg_indicate_rx(struct wilc *wilc, u8 *frame, int size,
 515                               struct wilc_cfg_rsp *rsp)
 516 {
 517         int ret = 1;
 518         u8 msg_type;
 519         u8 msg_id;
 520
 521         msg_type = frame[0];
 522         msg_id = frame[1];      /* seq no */
 523         frame += 4;
 524         size -= 4;
 525
 526         /**
 527          *      The  valid types of response messages are 'R' (Response), 'I' (Information), and 'N' (Network Information)
 528          **/
 529
 530         switch (msg_type) {
 531         case 'R':
 532                 wilc_wlan_parse_response_frame(frame, size);
 533                 rsp->type = WILC_CFG_RSP;
 534                 rsp->seq_no = msg_id;
 535                 break;
 536
 537         case 'I':
 538                 rsp->type = wilc_wlan_parse_info_frame(frame, size);
 539                 rsp->seq_no = msg_id;
 540                 /*call host interface info parse as well*/
 541                 wilc_gnrl_async_info_received(wilc, frame - 4, size + 4);
 542                 break;
 543
 544         case 'N':
 545                 wilc_network_info_received(wilc, frame - 4, size + 4);
 546                 rsp->type = 0;
 547                 break;
 548
 549         case 'S':
 550                 wilc_scan_complete_received(wilc, frame - 4, size + 4);
 551                 break;
 552
 553         default:
 554                 rsp->type = 0;
 555                 rsp->seq_no = msg_id;
 556                 ret = 0;
 557                 break;
 558         }
 559
 560         return ret;
 561 }
 562
 563 int wilc_wlan_cfg_init(void)
 564 {
 565         memset((void *)&g_mac, 0, sizeof(struct wilc_mac_cfg));
 566         return 1;
 567 }