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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 | // SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2012 - 2018 Microchip Technology Inc., and its subsidiaries. * All rights reserved. */ #include <linux/bitfield.h> #include "wlan_if.h" #include "wlan.h" #include "wlan_cfg.h" #include "netdev.h" enum cfg_cmd_type { CFG_BYTE_CMD = 0, CFG_HWORD_CMD = 1, CFG_WORD_CMD = 2, CFG_STR_CMD = 3, CFG_BIN_CMD = 4 }; static const struct wilc_cfg_byte g_cfg_byte[] = { {WID_STATUS, 0}, {WID_RSSI, 0}, {WID_LINKSPEED, 0}, {WID_WOWLAN_TRIGGER, 0}, {WID_NIL, 0} }; static const struct wilc_cfg_hword g_cfg_hword[] = { {WID_NIL, 0} }; static const struct wilc_cfg_word g_cfg_word[] = { {WID_FAILED_COUNT, 0}, {WID_RECEIVED_FRAGMENT_COUNT, 0}, {WID_SUCCESS_FRAME_COUNT, 0}, {WID_GET_INACTIVE_TIME, 0}, {WID_NIL, 0} }; static const struct wilc_cfg_str g_cfg_str[] = { {WID_FIRMWARE_VERSION, NULL}, {WID_MAC_ADDR, NULL}, {WID_ASSOC_RES_INFO, NULL}, {WID_NIL, NULL} }; #define WILC_RESP_MSG_TYPE_CONFIG_REPLY 'R' #define WILC_RESP_MSG_TYPE_STATUS_INFO 'I' #define WILC_RESP_MSG_TYPE_NETWORK_INFO 'N' #define WILC_RESP_MSG_TYPE_SCAN_COMPLETE 'S' /******************************************** * * Configuration Functions * ********************************************/ static int wilc_wlan_cfg_set_byte(u8 *frame, u32 offset, u16 id, u8 val8) { if ((offset + 4) >= WILC_MAX_CFG_FRAME_SIZE) return 0; put_unaligned_le16(id, &frame[offset]); put_unaligned_le16(1, &frame[offset + 2]); frame[offset + 4] = val8; return 5; } static int wilc_wlan_cfg_set_hword(u8 *frame, u32 offset, u16 id, u16 val16) { if ((offset + 5) >= WILC_MAX_CFG_FRAME_SIZE) return 0; put_unaligned_le16(id, &frame[offset]); put_unaligned_le16(2, &frame[offset + 2]); put_unaligned_le16(val16, &frame[offset + 4]); return 6; } static int wilc_wlan_cfg_set_word(u8 *frame, u32 offset, u16 id, u32 val32) { if ((offset + 7) >= WILC_MAX_CFG_FRAME_SIZE) return 0; put_unaligned_le16(id, &frame[offset]); put_unaligned_le16(4, &frame[offset + 2]); put_unaligned_le32(val32, &frame[offset + 4]); return 8; } static int wilc_wlan_cfg_set_str(u8 *frame, u32 offset, u16 id, u8 *str, u32 size) { if ((offset + size + 4) >= WILC_MAX_CFG_FRAME_SIZE) return 0; put_unaligned_le16(id, &frame[offset]); put_unaligned_le16(size, &frame[offset + 2]); if (str && size != 0) memcpy(&frame[offset + 4], str, size); return (size + 4); } static int wilc_wlan_cfg_set_bin(u8 *frame, u32 offset, u16 id, u8 *b, u32 size) { u32 i; u8 checksum = 0; if ((offset + size + 5) >= WILC_MAX_CFG_FRAME_SIZE) return 0; put_unaligned_le16(id, &frame[offset]); put_unaligned_le16(size, &frame[offset + 2]); if ((b) && size != 0) { memcpy(&frame[offset + 4], b, size); for (i = 0; i < size; i++) checksum += frame[offset + i + 4]; } frame[offset + size + 4] = checksum; return (size + 5); } /******************************************** * * Configuration Response Functions * ********************************************/ static void wilc_wlan_parse_response_frame(struct wilc *wl, u8 *info, int size) { u16 wid; u32 len = 0, i = 0; struct wilc_cfg *cfg = &wl->cfg; while (size > 0) { i = 0; wid = get_unaligned_le16(info); switch (FIELD_GET(WILC_WID_TYPE, wid)) { case WID_CHAR: while (cfg->b[i].id != WID_NIL && cfg->b[i].id != wid) i++; if (cfg->b[i].id == wid) cfg->b[i].val = info[4]; len = 3; break; case WID_SHORT: while (cfg->hw[i].id != WID_NIL && cfg->hw[i].id != wid) i++; if (cfg->hw[i].id == wid) cfg->hw[i].val = get_unaligned_le16(&info[4]); len = 4; break; case WID_INT: while (cfg->w[i].id != WID_NIL && cfg->w[i].id != wid) i++; if (cfg->w[i].id == wid) cfg->w[i].val = get_unaligned_le32(&info[4]); len = 6; break; case WID_STR: while (cfg->s[i].id != WID_NIL && cfg->s[i].id != wid) i++; if (cfg->s[i].id == wid) memcpy(cfg->s[i].str, &info[2], info[2] + 2); len = 2 + info[2]; break; default: break; } size -= (2 + len); info += (2 + len); } } static void wilc_wlan_parse_info_frame(struct wilc *wl, u8 *info) { u32 wid, len; wid = get_unaligned_le16(info); len = info[2]; if (len == 1 && wid == WID_STATUS) { int i = 0; while (wl->cfg.b[i].id != WID_NIL && wl->cfg.b[i].id != wid) i++; if (wl->cfg.b[i].id == wid) wl->cfg.b[i].val = info[3]; } } /******************************************** * * Configuration Exported Functions * ********************************************/ int wilc_wlan_cfg_set_wid(u8 *frame, u32 offset, u16 id, u8 *buf, int size) { u8 type = FIELD_GET(WILC_WID_TYPE, id); int ret = 0; switch (type) { case CFG_BYTE_CMD: if (size >= 1) ret = wilc_wlan_cfg_set_byte(frame, offset, id, *buf); break; case CFG_HWORD_CMD: if (size >= 2) ret = wilc_wlan_cfg_set_hword(frame, offset, id, *((u16 *)buf)); break; case CFG_WORD_CMD: if (size >= 4) ret = wilc_wlan_cfg_set_word(frame, offset, id, *((u32 *)buf)); break; case CFG_STR_CMD: ret = wilc_wlan_cfg_set_str(frame, offset, id, buf, size); break; case CFG_BIN_CMD: ret = wilc_wlan_cfg_set_bin(frame, offset, id, buf, size); break; } return ret; } int wilc_wlan_cfg_get_wid(u8 *frame, u32 offset, u16 id) { if ((offset + 2) >= WILC_MAX_CFG_FRAME_SIZE) return 0; put_unaligned_le16(id, &frame[offset]); return 2; } int wilc_wlan_cfg_get_val(struct wilc *wl, u16 wid, u8 *buffer, u32 buffer_size) { u8 type = FIELD_GET(WILC_WID_TYPE, wid); int i, ret = 0; struct wilc_cfg *cfg = &wl->cfg; i = 0; if (type == CFG_BYTE_CMD) { while (cfg->b[i].id != WID_NIL && cfg->b[i].id != wid) i++; if (cfg->b[i].id == wid) { memcpy(buffer, &cfg->b[i].val, 1); ret = 1; } } else if (type == CFG_HWORD_CMD) { while (cfg->hw[i].id != WID_NIL && cfg->hw[i].id != wid) i++; if (cfg->hw[i].id == wid) { memcpy(buffer, &cfg->hw[i].val, 2); ret = 2; } } else if (type == CFG_WORD_CMD) { while (cfg->w[i].id != WID_NIL && cfg->w[i].id != wid) i++; if (cfg->w[i].id == wid) { memcpy(buffer, &cfg->w[i].val, 4); ret = 4; } } else if (type == CFG_STR_CMD) { while (cfg->s[i].id != WID_NIL && cfg->s[i].id != wid) i++; if (cfg->s[i].id == wid) { u16 size = get_unaligned_le16(cfg->s[i].str); if (buffer_size >= size) { memcpy(buffer, &cfg->s[i].str[2], size); ret = size; } } } return ret; } void wilc_wlan_cfg_indicate_rx(struct wilc *wilc, u8 *frame, int size, struct wilc_cfg_rsp *rsp) { u8 msg_type; u8 msg_id; msg_type = frame[0]; msg_id = frame[1]; /* seq no */ frame += 4; size -= 4; rsp->type = 0; switch (msg_type) { case WILC_RESP_MSG_TYPE_CONFIG_REPLY: wilc_wlan_parse_response_frame(wilc, frame, size); rsp->type = WILC_CFG_RSP; rsp->seq_no = msg_id; break; case WILC_RESP_MSG_TYPE_STATUS_INFO: wilc_wlan_parse_info_frame(wilc, frame); rsp->type = WILC_CFG_RSP_STATUS; rsp->seq_no = msg_id; /* call host interface info parse as well */ wilc_gnrl_async_info_received(wilc, frame - 4, size + 4); break; case WILC_RESP_MSG_TYPE_NETWORK_INFO: wilc_network_info_received(wilc, frame - 4, size + 4); break; case WILC_RESP_MSG_TYPE_SCAN_COMPLETE: wilc_scan_complete_received(wilc, frame - 4, size + 4); break; default: rsp->seq_no = msg_id; break; } } int wilc_wlan_cfg_init(struct wilc *wl) { struct wilc_cfg_str_vals *str_vals; int i = 0; wl->cfg.b = kmemdup(g_cfg_byte, sizeof(g_cfg_byte), GFP_KERNEL); if (!wl->cfg.b) return -ENOMEM; wl->cfg.hw = kmemdup(g_cfg_hword, sizeof(g_cfg_hword), GFP_KERNEL); if (!wl->cfg.hw) goto out_b; wl->cfg.w = kmemdup(g_cfg_word, sizeof(g_cfg_word), GFP_KERNEL); if (!wl->cfg.w) goto out_hw; wl->cfg.s = kmemdup(g_cfg_str, sizeof(g_cfg_str), GFP_KERNEL); if (!wl->cfg.s) goto out_w; str_vals = kzalloc(sizeof(*str_vals), GFP_KERNEL); if (!str_vals) goto out_s; wl->cfg.str_vals = str_vals; /* store the string cfg parameters */ wl->cfg.s[i].id = WID_FIRMWARE_VERSION; wl->cfg.s[i].str = str_vals->firmware_version; i++; wl->cfg.s[i].id = WID_MAC_ADDR; wl->cfg.s[i].str = str_vals->mac_address; i++; wl->cfg.s[i].id = WID_ASSOC_RES_INFO; wl->cfg.s[i].str = str_vals->assoc_rsp; i++; wl->cfg.s[i].id = WID_NIL; wl->cfg.s[i].str = NULL; return 0; out_s: kfree(wl->cfg.s); out_w: kfree(wl->cfg.w); out_hw: kfree(wl->cfg.hw); out_b: kfree(wl->cfg.b); return -ENOMEM; } void wilc_wlan_cfg_deinit(struct wilc *wl) { kfree(wl->cfg.b); kfree(wl->cfg.hw); kfree(wl->cfg.w); kfree(wl->cfg.s); kfree(wl->cfg.str_vals); } |