1/** 2 * Copyright (c) 2014 Redpine Signals Inc. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17#include <linux/etherdevice.h> 18#include "rsi_mgmt.h" 19#include "rsi_common.h" 20 21static struct bootup_params boot_params_20 = { 22 .magic_number = cpu_to_le16(0x5aa5), 23 .crystal_good_time = 0x0, 24 .valid = cpu_to_le32(VALID_20), 25 .reserved_for_valids = 0x0, 26 .bootup_mode_info = 0x0, 27 .digital_loop_back_params = 0x0, 28 .rtls_timestamp_en = 0x0, 29 .host_spi_intr_cfg = 0x0, 30 .device_clk_info = {{ 31 .pll_config_g = { 32 .tapll_info_g = { 33 .pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_20 << 8)| 34 (TA_PLL_M_VAL_20)), 35 .pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_20), 36 }, 37 .pll960_info_g = { 38 .pll_reg_1 = cpu_to_le16((PLL960_P_VAL_20 << 8)| 39 (PLL960_N_VAL_20)), 40 .pll_reg_2 = cpu_to_le16(PLL960_M_VAL_20), 41 .pll_reg_3 = 0x0, 42 }, 43 .afepll_info_g = { 44 .pll_reg = cpu_to_le16(0x9f0), 45 } 46 }, 47 .switch_clk_g = { 48 .switch_clk_info = cpu_to_le16(BIT(3)), 49 .bbp_lmac_clk_reg_val = cpu_to_le16(0x121), 50 .umac_clock_reg_config = 0x0, 51 .qspi_uart_clock_reg_config = 0x0 52 } 53 }, 54 { 55 .pll_config_g = { 56 .tapll_info_g = { 57 .pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_20 << 8)| 58 (TA_PLL_M_VAL_20)), 59 .pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_20), 60 }, 61 .pll960_info_g = { 62 .pll_reg_1 = cpu_to_le16((PLL960_P_VAL_20 << 8)| 63 (PLL960_N_VAL_20)), 64 .pll_reg_2 = cpu_to_le16(PLL960_M_VAL_20), 65 .pll_reg_3 = 0x0, 66 }, 67 .afepll_info_g = { 68 .pll_reg = cpu_to_le16(0x9f0), 69 } 70 }, 71 .switch_clk_g = { 72 .switch_clk_info = 0x0, 73 .bbp_lmac_clk_reg_val = 0x0, 74 .umac_clock_reg_config = 0x0, 75 .qspi_uart_clock_reg_config = 0x0 76 } 77 }, 78 { 79 .pll_config_g = { 80 .tapll_info_g = { 81 .pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_20 << 8)| 82 (TA_PLL_M_VAL_20)), 83 .pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_20), 84 }, 85 .pll960_info_g = { 86 .pll_reg_1 = cpu_to_le16((PLL960_P_VAL_20 << 8)| 87 (PLL960_N_VAL_20)), 88 .pll_reg_2 = cpu_to_le16(PLL960_M_VAL_20), 89 .pll_reg_3 = 0x0, 90 }, 91 .afepll_info_g = { 92 .pll_reg = cpu_to_le16(0x9f0), 93 } 94 }, 95 .switch_clk_g = { 96 .switch_clk_info = 0x0, 97 .bbp_lmac_clk_reg_val = 0x0, 98 .umac_clock_reg_config = 0x0, 99 .qspi_uart_clock_reg_config = 0x0 100 } 101 } }, 102 .buckboost_wakeup_cnt = 0x0, 103 .pmu_wakeup_wait = 0x0, 104 .shutdown_wait_time = 0x0, 105 .pmu_slp_clkout_sel = 0x0, 106 .wdt_prog_value = 0x0, 107 .wdt_soc_rst_delay = 0x0, 108 .dcdc_operation_mode = 0x0, 109 .soc_reset_wait_cnt = 0x0 110}; 111 112static struct bootup_params boot_params_40 = { 113 .magic_number = cpu_to_le16(0x5aa5), 114 .crystal_good_time = 0x0, 115 .valid = cpu_to_le32(VALID_40), 116 .reserved_for_valids = 0x0, 117 .bootup_mode_info = 0x0, 118 .digital_loop_back_params = 0x0, 119 .rtls_timestamp_en = 0x0, 120 .host_spi_intr_cfg = 0x0, 121 .device_clk_info = {{ 122 .pll_config_g = { 123 .tapll_info_g = { 124 .pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_40 << 8)| 125 (TA_PLL_M_VAL_40)), 126 .pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_40), 127 }, 128 .pll960_info_g = { 129 .pll_reg_1 = cpu_to_le16((PLL960_P_VAL_40 << 8)| 130 (PLL960_N_VAL_40)), 131 .pll_reg_2 = cpu_to_le16(PLL960_M_VAL_40), 132 .pll_reg_3 = 0x0, 133 }, 134 .afepll_info_g = { 135 .pll_reg = cpu_to_le16(0x9f0), 136 } 137 }, 138 .switch_clk_g = { 139 .switch_clk_info = cpu_to_le16(0x09), 140 .bbp_lmac_clk_reg_val = cpu_to_le16(0x1121), 141 .umac_clock_reg_config = cpu_to_le16(0x48), 142 .qspi_uart_clock_reg_config = 0x0 143 } 144 }, 145 { 146 .pll_config_g = { 147 .tapll_info_g = { 148 .pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_40 << 8)| 149 (TA_PLL_M_VAL_40)), 150 .pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_40), 151 }, 152 .pll960_info_g = { 153 .pll_reg_1 = cpu_to_le16((PLL960_P_VAL_40 << 8)| 154 (PLL960_N_VAL_40)), 155 .pll_reg_2 = cpu_to_le16(PLL960_M_VAL_40), 156 .pll_reg_3 = 0x0, 157 }, 158 .afepll_info_g = { 159 .pll_reg = cpu_to_le16(0x9f0), 160 } 161 }, 162 .switch_clk_g = { 163 .switch_clk_info = 0x0, 164 .bbp_lmac_clk_reg_val = 0x0, 165 .umac_clock_reg_config = 0x0, 166 .qspi_uart_clock_reg_config = 0x0 167 } 168 }, 169 { 170 .pll_config_g = { 171 .tapll_info_g = { 172 .pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_40 << 8)| 173 (TA_PLL_M_VAL_40)), 174 .pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_40), 175 }, 176 .pll960_info_g = { 177 .pll_reg_1 = cpu_to_le16((PLL960_P_VAL_40 << 8)| 178 (PLL960_N_VAL_40)), 179 .pll_reg_2 = cpu_to_le16(PLL960_M_VAL_40), 180 .pll_reg_3 = 0x0, 181 }, 182 .afepll_info_g = { 183 .pll_reg = cpu_to_le16(0x9f0), 184 } 185 }, 186 .switch_clk_g = { 187 .switch_clk_info = 0x0, 188 .bbp_lmac_clk_reg_val = 0x0, 189 .umac_clock_reg_config = 0x0, 190 .qspi_uart_clock_reg_config = 0x0 191 } 192 } }, 193 .buckboost_wakeup_cnt = 0x0, 194 .pmu_wakeup_wait = 0x0, 195 .shutdown_wait_time = 0x0, 196 .pmu_slp_clkout_sel = 0x0, 197 .wdt_prog_value = 0x0, 198 .wdt_soc_rst_delay = 0x0, 199 .dcdc_operation_mode = 0x0, 200 .soc_reset_wait_cnt = 0x0 201}; 202 203static u16 mcs[] = {13, 26, 39, 52, 78, 104, 117, 130}; 204 205/** 206 * rsi_set_default_parameters() - This function sets default parameters. 207 * @common: Pointer to the driver private structure. 208 * 209 * Return: none 210 */ 211static void rsi_set_default_parameters(struct rsi_common *common) 212{ 213 common->band = IEEE80211_BAND_2GHZ; 214 common->channel_width = BW_20MHZ; 215 common->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 216 common->channel = 1; 217 common->min_rate = 0xffff; 218 common->fsm_state = FSM_CARD_NOT_READY; 219 common->iface_down = true; 220 common->endpoint = EP_2GHZ_20MHZ; 221} 222 223/** 224 * rsi_set_contention_vals() - This function sets the contention values for the 225 * backoff procedure. 226 * @common: Pointer to the driver private structure. 227 * 228 * Return: None. 229 */ 230static void rsi_set_contention_vals(struct rsi_common *common) 231{ 232 u8 ii = 0; 233 234 for (; ii < NUM_EDCA_QUEUES; ii++) { 235 common->tx_qinfo[ii].wme_params = 236 (((common->edca_params[ii].cw_min / 2) + 237 (common->edca_params[ii].aifs)) * 238 WMM_SHORT_SLOT_TIME + SIFS_DURATION); 239 common->tx_qinfo[ii].weight = common->tx_qinfo[ii].wme_params; 240 common->tx_qinfo[ii].pkt_contended = 0; 241 } 242} 243 244/** 245 * rsi_send_internal_mgmt_frame() - This function sends management frames to 246 * firmware.Also schedules packet to queue 247 * for transmission. 248 * @common: Pointer to the driver private structure. 249 * @skb: Pointer to the socket buffer structure. 250 * 251 * Return: 0 on success, -1 on failure. 252 */ 253static int rsi_send_internal_mgmt_frame(struct rsi_common *common, 254 struct sk_buff *skb) 255{ 256 struct skb_info *tx_params; 257 258 if (skb == NULL) { 259 rsi_dbg(ERR_ZONE, "%s: Unable to allocate skb\n", __func__); 260 return -ENOMEM; 261 } 262 tx_params = (struct skb_info *)&IEEE80211_SKB_CB(skb)->driver_data; 263 tx_params->flags |= INTERNAL_MGMT_PKT; 264 skb_queue_tail(&common->tx_queue[MGMT_SOFT_Q], skb); 265 rsi_set_event(&common->tx_thread.event); 266 return 0; 267} 268 269/** 270 * rsi_load_radio_caps() - This function is used to send radio capabilities 271 * values to firmware. 272 * @common: Pointer to the driver private structure. 273 * 274 * Return: 0 on success, corresponding negative error code on failure. 275 */ 276static int rsi_load_radio_caps(struct rsi_common *common) 277{ 278 struct rsi_radio_caps *radio_caps; 279 struct rsi_hw *adapter = common->priv; 280 u16 inx = 0; 281 u8 ii; 282 u8 radio_id = 0; 283 u16 gc[20] = {0xf0, 0xf0, 0xf0, 0xf0, 284 0xf0, 0xf0, 0xf0, 0xf0, 285 0xf0, 0xf0, 0xf0, 0xf0, 286 0xf0, 0xf0, 0xf0, 0xf0, 287 0xf0, 0xf0, 0xf0, 0xf0}; 288 struct sk_buff *skb; 289 290 rsi_dbg(INFO_ZONE, "%s: Sending rate symbol req frame\n", __func__); 291 292 skb = dev_alloc_skb(sizeof(struct rsi_radio_caps)); 293 294 if (!skb) { 295 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", 296 __func__); 297 return -ENOMEM; 298 } 299 300 memset(skb->data, 0, sizeof(struct rsi_radio_caps)); 301 radio_caps = (struct rsi_radio_caps *)skb->data; 302 303 radio_caps->desc_word[1] = cpu_to_le16(RADIO_CAPABILITIES); 304 radio_caps->desc_word[4] = cpu_to_le16(RSI_RF_TYPE << 8); 305 306 if (common->channel_width == BW_40MHZ) { 307 radio_caps->desc_word[7] |= cpu_to_le16(RSI_LMAC_CLOCK_80MHZ); 308 radio_caps->desc_word[7] |= cpu_to_le16(RSI_ENABLE_40MHZ); 309 310 if (common->fsm_state == FSM_MAC_INIT_DONE) { 311 struct ieee80211_hw *hw = adapter->hw; 312 struct ieee80211_conf *conf = &hw->conf; 313 if (conf_is_ht40_plus(conf)) { 314 radio_caps->desc_word[5] = 315 cpu_to_le16(LOWER_20_ENABLE); 316 radio_caps->desc_word[5] |= 317 cpu_to_le16(LOWER_20_ENABLE >> 12); 318 } else if (conf_is_ht40_minus(conf)) { 319 radio_caps->desc_word[5] = 320 cpu_to_le16(UPPER_20_ENABLE); 321 radio_caps->desc_word[5] |= 322 cpu_to_le16(UPPER_20_ENABLE >> 12); 323 } else { 324 radio_caps->desc_word[5] = 325 cpu_to_le16(BW_40MHZ << 12); 326 radio_caps->desc_word[5] |= 327 cpu_to_le16(FULL40M_ENABLE); 328 } 329 } 330 } 331 332 radio_caps->sifs_tx_11n = cpu_to_le16(SIFS_TX_11N_VALUE); 333 radio_caps->sifs_tx_11b = cpu_to_le16(SIFS_TX_11B_VALUE); 334 radio_caps->slot_rx_11n = cpu_to_le16(SHORT_SLOT_VALUE); 335 radio_caps->ofdm_ack_tout = cpu_to_le16(OFDM_ACK_TOUT_VALUE); 336 radio_caps->cck_ack_tout = cpu_to_le16(CCK_ACK_TOUT_VALUE); 337 radio_caps->preamble_type = cpu_to_le16(LONG_PREAMBLE); 338 339 radio_caps->desc_word[7] |= cpu_to_le16(radio_id << 8); 340 341 for (ii = 0; ii < MAX_HW_QUEUES; ii++) { 342 radio_caps->qos_params[ii].cont_win_min_q = cpu_to_le16(3); 343 radio_caps->qos_params[ii].cont_win_max_q = cpu_to_le16(0x3f); 344 radio_caps->qos_params[ii].aifsn_val_q = cpu_to_le16(2); 345 radio_caps->qos_params[ii].txop_q = 0; 346 } 347 348 for (ii = 0; ii < MAX_HW_QUEUES - 4; ii++) { 349 radio_caps->qos_params[ii].cont_win_min_q = 350 cpu_to_le16(common->edca_params[ii].cw_min); 351 radio_caps->qos_params[ii].cont_win_max_q = 352 cpu_to_le16(common->edca_params[ii].cw_max); 353 radio_caps->qos_params[ii].aifsn_val_q = 354 cpu_to_le16((common->edca_params[ii].aifs) << 8); 355 radio_caps->qos_params[ii].txop_q = 356 cpu_to_le16(common->edca_params[ii].txop); 357 } 358 359 memcpy(&common->rate_pwr[0], &gc[0], 40); 360 for (ii = 0; ii < 20; ii++) 361 radio_caps->gcpd_per_rate[inx++] = 362 cpu_to_le16(common->rate_pwr[ii] & 0x00FF); 363 364 radio_caps->desc_word[0] = cpu_to_le16((sizeof(struct rsi_radio_caps) - 365 FRAME_DESC_SZ) | 366 (RSI_WIFI_MGMT_Q << 12)); 367 368 369 skb_put(skb, (sizeof(struct rsi_radio_caps))); 370 371 return rsi_send_internal_mgmt_frame(common, skb); 372} 373 374/** 375 * rsi_mgmt_pkt_to_core() - This function is the entry point for Mgmt module. 376 * @common: Pointer to the driver private structure. 377 * @msg: Pointer to received packet. 378 * @msg_len: Length of the recieved packet. 379 * @type: Type of recieved packet. 380 * 381 * Return: 0 on success, -1 on failure. 382 */ 383static int rsi_mgmt_pkt_to_core(struct rsi_common *common, 384 u8 *msg, 385 s32 msg_len, 386 u8 type) 387{ 388 struct rsi_hw *adapter = common->priv; 389 struct ieee80211_tx_info *info; 390 struct skb_info *rx_params; 391 u8 pad_bytes = msg[4]; 392 u8 pkt_recv; 393 struct sk_buff *skb; 394 char *buffer; 395 396 if (type == RX_DOT11_MGMT) { 397 if (!adapter->sc_nvifs) 398 return -ENOLINK; 399 400 msg_len -= pad_bytes; 401 if ((msg_len <= 0) || (!msg)) { 402 rsi_dbg(MGMT_RX_ZONE, 403 "%s: Invalid rx msg of len = %d\n", 404 __func__, msg_len); 405 return -EINVAL; 406 } 407 408 skb = dev_alloc_skb(msg_len); 409 if (!skb) { 410 rsi_dbg(ERR_ZONE, "%s: Failed to allocate skb\n", 411 __func__); 412 return -ENOMEM; 413 } 414 415 buffer = skb_put(skb, msg_len); 416 417 memcpy(buffer, 418 (u8 *)(msg + FRAME_DESC_SZ + pad_bytes), 419 msg_len); 420 421 pkt_recv = buffer[0]; 422 423 info = IEEE80211_SKB_CB(skb); 424 rx_params = (struct skb_info *)info->driver_data; 425 rx_params->rssi = rsi_get_rssi(msg); 426 rx_params->channel = rsi_get_channel(msg); 427 rsi_indicate_pkt_to_os(common, skb); 428 } else { 429 rsi_dbg(MGMT_TX_ZONE, "%s: Internal Packet\n", __func__); 430 } 431 432 return 0; 433} 434 435/** 436 * rsi_hal_send_sta_notify_frame() - This function sends the station notify 437 * frame to firmware. 438 * @common: Pointer to the driver private structure. 439 * @opmode: Operating mode of device. 440 * @notify_event: Notification about station connection. 441 * @bssid: bssid. 442 * @qos_enable: Qos is enabled. 443 * @aid: Aid (unique for all STA). 444 * 445 * Return: status: 0 on success, corresponding negative error code on failure. 446 */ 447static int rsi_hal_send_sta_notify_frame(struct rsi_common *common, 448 u8 opmode, 449 u8 notify_event, 450 const unsigned char *bssid, 451 u8 qos_enable, 452 u16 aid) 453{ 454 struct sk_buff *skb = NULL; 455 struct rsi_peer_notify *peer_notify; 456 u16 vap_id = 0; 457 int status; 458 459 rsi_dbg(MGMT_TX_ZONE, "%s: Sending sta notify frame\n", __func__); 460 461 skb = dev_alloc_skb(sizeof(struct rsi_peer_notify)); 462 463 if (!skb) { 464 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", 465 __func__); 466 return -ENOMEM; 467 } 468 469 memset(skb->data, 0, sizeof(struct rsi_peer_notify)); 470 peer_notify = (struct rsi_peer_notify *)skb->data; 471 472 peer_notify->command = cpu_to_le16(opmode << 1); 473 474 switch (notify_event) { 475 case STA_CONNECTED: 476 peer_notify->command |= cpu_to_le16(RSI_ADD_PEER); 477 break; 478 case STA_DISCONNECTED: 479 peer_notify->command |= cpu_to_le16(RSI_DELETE_PEER); 480 break; 481 default: 482 break; 483 } 484 485 peer_notify->command |= cpu_to_le16((aid & 0xfff) << 4); 486 ether_addr_copy(peer_notify->mac_addr, bssid); 487 488 peer_notify->sta_flags = cpu_to_le32((qos_enable) ? 1 : 0); 489 490 peer_notify->desc_word[0] = 491 cpu_to_le16((sizeof(struct rsi_peer_notify) - FRAME_DESC_SZ) | 492 (RSI_WIFI_MGMT_Q << 12)); 493 peer_notify->desc_word[1] = cpu_to_le16(PEER_NOTIFY); 494 peer_notify->desc_word[7] |= cpu_to_le16(vap_id << 8); 495 496 skb_put(skb, sizeof(struct rsi_peer_notify)); 497 498 status = rsi_send_internal_mgmt_frame(common, skb); 499 500 if (!status && qos_enable) { 501 rsi_set_contention_vals(common); 502 status = rsi_load_radio_caps(common); 503 } 504 return status; 505} 506 507/** 508 * rsi_send_aggregation_params_frame() - This function sends the ampdu 509 * indication frame to firmware. 510 * @common: Pointer to the driver private structure. 511 * @tid: traffic identifier. 512 * @ssn: ssn. 513 * @buf_size: buffer size. 514 * @event: notification about station connection. 515 * 516 * Return: 0 on success, corresponding negative error code on failure. 517 */ 518int rsi_send_aggregation_params_frame(struct rsi_common *common, 519 u16 tid, 520 u16 ssn, 521 u8 buf_size, 522 u8 event) 523{ 524 struct sk_buff *skb = NULL; 525 struct rsi_mac_frame *mgmt_frame; 526 u8 peer_id = 0; 527 528 skb = dev_alloc_skb(FRAME_DESC_SZ); 529 530 if (!skb) { 531 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", 532 __func__); 533 return -ENOMEM; 534 } 535 536 memset(skb->data, 0, FRAME_DESC_SZ); 537 mgmt_frame = (struct rsi_mac_frame *)skb->data; 538 539 rsi_dbg(MGMT_TX_ZONE, "%s: Sending AMPDU indication frame\n", __func__); 540 541 mgmt_frame->desc_word[0] = cpu_to_le16(RSI_WIFI_MGMT_Q << 12); 542 mgmt_frame->desc_word[1] = cpu_to_le16(AMPDU_IND); 543 544 if (event == STA_TX_ADDBA_DONE) { 545 mgmt_frame->desc_word[4] = cpu_to_le16(ssn); 546 mgmt_frame->desc_word[5] = cpu_to_le16(buf_size); 547 mgmt_frame->desc_word[7] = 548 cpu_to_le16((tid | (START_AMPDU_AGGR << 4) | (peer_id << 8))); 549 } else if (event == STA_RX_ADDBA_DONE) { 550 mgmt_frame->desc_word[4] = cpu_to_le16(ssn); 551 mgmt_frame->desc_word[7] = cpu_to_le16(tid | 552 (START_AMPDU_AGGR << 4) | 553 (RX_BA_INDICATION << 5) | 554 (peer_id << 8)); 555 } else if (event == STA_TX_DELBA) { 556 mgmt_frame->desc_word[7] = cpu_to_le16(tid | 557 (STOP_AMPDU_AGGR << 4) | 558 (peer_id << 8)); 559 } else if (event == STA_RX_DELBA) { 560 mgmt_frame->desc_word[7] = cpu_to_le16(tid | 561 (STOP_AMPDU_AGGR << 4) | 562 (RX_BA_INDICATION << 5) | 563 (peer_id << 8)); 564 } 565 566 skb_put(skb, FRAME_DESC_SZ); 567 568 return rsi_send_internal_mgmt_frame(common, skb); 569} 570 571/** 572 * rsi_program_bb_rf() - This function starts base band and RF programming. 573 * This is called after initial configurations are done. 574 * @common: Pointer to the driver private structure. 575 * 576 * Return: 0 on success, corresponding negative error code on failure. 577 */ 578static int rsi_program_bb_rf(struct rsi_common *common) 579{ 580 struct sk_buff *skb; 581 struct rsi_mac_frame *mgmt_frame; 582 583 rsi_dbg(MGMT_TX_ZONE, "%s: Sending program BB/RF frame\n", __func__); 584 585 skb = dev_alloc_skb(FRAME_DESC_SZ); 586 if (!skb) { 587 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", 588 __func__); 589 return -ENOMEM; 590 } 591 592 memset(skb->data, 0, FRAME_DESC_SZ); 593 mgmt_frame = (struct rsi_mac_frame *)skb->data; 594 595 mgmt_frame->desc_word[0] = cpu_to_le16(RSI_WIFI_MGMT_Q << 12); 596 mgmt_frame->desc_word[1] = cpu_to_le16(BBP_PROG_IN_TA); 597 mgmt_frame->desc_word[4] = cpu_to_le16(common->endpoint); 598 599 if (common->rf_reset) { 600 mgmt_frame->desc_word[7] = cpu_to_le16(RF_RESET_ENABLE); 601 rsi_dbg(MGMT_TX_ZONE, "%s: ===> RF RESET REQUEST SENT <===\n", 602 __func__); 603 common->rf_reset = 0; 604 } 605 common->bb_rf_prog_count = 1; 606 mgmt_frame->desc_word[7] |= cpu_to_le16(PUT_BBP_RESET | 607 BBP_REG_WRITE | (RSI_RF_TYPE << 4)); 608 skb_put(skb, FRAME_DESC_SZ); 609 610 return rsi_send_internal_mgmt_frame(common, skb); 611} 612 613/** 614 * rsi_set_vap_capabilities() - This function send vap capability to firmware. 615 * @common: Pointer to the driver private structure. 616 * @opmode: Operating mode of device. 617 * 618 * Return: 0 on success, corresponding negative error code on failure. 619 */ 620int rsi_set_vap_capabilities(struct rsi_common *common, enum opmode mode) 621{ 622 struct sk_buff *skb = NULL; 623 struct rsi_vap_caps *vap_caps; 624 struct rsi_hw *adapter = common->priv; 625 struct ieee80211_hw *hw = adapter->hw; 626 struct ieee80211_conf *conf = &hw->conf; 627 u16 vap_id = 0; 628 629 rsi_dbg(MGMT_TX_ZONE, "%s: Sending VAP capabilities frame\n", __func__); 630 631 skb = dev_alloc_skb(sizeof(struct rsi_vap_caps)); 632 if (!skb) { 633 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", 634 __func__); 635 return -ENOMEM; 636 } 637 638 memset(skb->data, 0, sizeof(struct rsi_vap_caps)); 639 vap_caps = (struct rsi_vap_caps *)skb->data; 640 641 vap_caps->desc_word[0] = cpu_to_le16((sizeof(struct rsi_vap_caps) - 642 FRAME_DESC_SZ) | 643 (RSI_WIFI_MGMT_Q << 12)); 644 vap_caps->desc_word[1] = cpu_to_le16(VAP_CAPABILITIES); 645 vap_caps->desc_word[4] = cpu_to_le16(mode | 646 (common->channel_width << 8)); 647 vap_caps->desc_word[7] = cpu_to_le16((vap_id << 8) | 648 (common->mac_id << 4) | 649 common->radio_id); 650 651 memcpy(vap_caps->mac_addr, common->mac_addr, IEEE80211_ADDR_LEN); 652 vap_caps->keep_alive_period = cpu_to_le16(90); 653 vap_caps->frag_threshold = cpu_to_le16(IEEE80211_MAX_FRAG_THRESHOLD); 654 655 vap_caps->rts_threshold = cpu_to_le16(common->rts_threshold); 656 vap_caps->default_mgmt_rate = cpu_to_le32(RSI_RATE_6); 657 658 if (common->band == IEEE80211_BAND_5GHZ) { 659 vap_caps->default_ctrl_rate = cpu_to_le32(RSI_RATE_6); 660 if (conf_is_ht40(&common->priv->hw->conf)) { 661 vap_caps->default_ctrl_rate |= 662 cpu_to_le32(FULL40M_ENABLE << 16); 663 } 664 } else { 665 vap_caps->default_ctrl_rate = cpu_to_le32(RSI_RATE_1); 666 if (conf_is_ht40_minus(conf)) 667 vap_caps->default_ctrl_rate |= 668 cpu_to_le32(UPPER_20_ENABLE << 16); 669 else if (conf_is_ht40_plus(conf)) 670 vap_caps->default_ctrl_rate |= 671 cpu_to_le32(LOWER_20_ENABLE << 16); 672 } 673 674 vap_caps->default_data_rate = 0; 675 vap_caps->beacon_interval = cpu_to_le16(200); 676 vap_caps->dtim_period = cpu_to_le16(4); 677 678 skb_put(skb, sizeof(*vap_caps)); 679 680 return rsi_send_internal_mgmt_frame(common, skb); 681} 682 683/** 684 * rsi_hal_load_key() - This function is used to load keys within the firmware. 685 * @common: Pointer to the driver private structure. 686 * @data: Pointer to the key data. 687 * @key_len: Key length to be loaded. 688 * @key_type: Type of key: GROUP/PAIRWISE. 689 * @key_id: Key index. 690 * @cipher: Type of cipher used. 691 * 692 * Return: 0 on success, -1 on failure. 693 */ 694int rsi_hal_load_key(struct rsi_common *common, 695 u8 *data, 696 u16 key_len, 697 u8 key_type, 698 u8 key_id, 699 u32 cipher) 700{ 701 struct sk_buff *skb = NULL; 702 struct rsi_set_key *set_key; 703 u16 key_descriptor = 0; 704 705 rsi_dbg(MGMT_TX_ZONE, "%s: Sending load key frame\n", __func__); 706 707 skb = dev_alloc_skb(sizeof(struct rsi_set_key)); 708 if (!skb) { 709 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", 710 __func__); 711 return -ENOMEM; 712 } 713 714 memset(skb->data, 0, sizeof(struct rsi_set_key)); 715 set_key = (struct rsi_set_key *)skb->data; 716 717 if ((cipher == WLAN_CIPHER_SUITE_WEP40) || 718 (cipher == WLAN_CIPHER_SUITE_WEP104)) { 719 key_len += 1; 720 key_descriptor |= BIT(2); 721 if (key_len >= 13) 722 key_descriptor |= BIT(3); 723 } else if (cipher != KEY_TYPE_CLEAR) { 724 key_descriptor |= BIT(4); 725 if (key_type == RSI_PAIRWISE_KEY) 726 key_id = 0; 727 if (cipher == WLAN_CIPHER_SUITE_TKIP) 728 key_descriptor |= BIT(5); 729 } 730 key_descriptor |= (key_type | BIT(13) | (key_id << 14)); 731 732 set_key->desc_word[0] = cpu_to_le16((sizeof(struct rsi_set_key) - 733 FRAME_DESC_SZ) | 734 (RSI_WIFI_MGMT_Q << 12)); 735 set_key->desc_word[1] = cpu_to_le16(SET_KEY_REQ); 736 set_key->desc_word[4] = cpu_to_le16(key_descriptor); 737 738 if ((cipher == WLAN_CIPHER_SUITE_WEP40) || 739 (cipher == WLAN_CIPHER_SUITE_WEP104)) { 740 memcpy(&set_key->key[key_id][1], 741 data, 742 key_len * 2); 743 } else { 744 memcpy(&set_key->key[0][0], data, key_len); 745 } 746 747 memcpy(set_key->tx_mic_key, &data[16], 8); 748 memcpy(set_key->rx_mic_key, &data[24], 8); 749 750 skb_put(skb, sizeof(struct rsi_set_key)); 751 752 return rsi_send_internal_mgmt_frame(common, skb); 753} 754 755/* 756 * rsi_load_bootup_params() - This function send bootup params to the firmware. 757 * @common: Pointer to the driver private structure. 758 * 759 * Return: 0 on success, corresponding error code on failure. 760 */ 761static int rsi_load_bootup_params(struct rsi_common *common) 762{ 763 struct sk_buff *skb; 764 struct rsi_boot_params *boot_params; 765 766 rsi_dbg(MGMT_TX_ZONE, "%s: Sending boot params frame\n", __func__); 767 skb = dev_alloc_skb(sizeof(struct rsi_boot_params)); 768 if (!skb) { 769 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", 770 __func__); 771 return -ENOMEM; 772 } 773 774 memset(skb->data, 0, sizeof(struct rsi_boot_params)); 775 boot_params = (struct rsi_boot_params *)skb->data; 776 777 rsi_dbg(MGMT_TX_ZONE, "%s:\n", __func__); 778 779 if (common->channel_width == BW_40MHZ) { 780 memcpy(&boot_params->bootup_params, 781 &boot_params_40, 782 sizeof(struct bootup_params)); 783 rsi_dbg(MGMT_TX_ZONE, "%s: Packet 40MHZ <=== %d\n", __func__, 784 UMAC_CLK_40BW); 785 boot_params->desc_word[7] = cpu_to_le16(UMAC_CLK_40BW); 786 } else { 787 memcpy(&boot_params->bootup_params, 788 &boot_params_20, 789 sizeof(struct bootup_params)); 790 if (boot_params_20.valid != cpu_to_le32(VALID_20)) { 791 boot_params->desc_word[7] = cpu_to_le16(UMAC_CLK_20BW); 792 rsi_dbg(MGMT_TX_ZONE, 793 "%s: Packet 20MHZ <=== %d\n", __func__, 794 UMAC_CLK_20BW); 795 } else { 796 boot_params->desc_word[7] = cpu_to_le16(UMAC_CLK_40MHZ); 797 rsi_dbg(MGMT_TX_ZONE, 798 "%s: Packet 20MHZ <=== %d\n", __func__, 799 UMAC_CLK_40MHZ); 800 } 801 } 802 803 /** 804 * Bit{0:11} indicates length of the Packet 805 * Bit{12:15} indicates host queue number 806 */ 807 boot_params->desc_word[0] = cpu_to_le16(sizeof(struct bootup_params) | 808 (RSI_WIFI_MGMT_Q << 12)); 809 boot_params->desc_word[1] = cpu_to_le16(BOOTUP_PARAMS_REQUEST); 810 811 skb_put(skb, sizeof(struct rsi_boot_params)); 812 813 return rsi_send_internal_mgmt_frame(common, skb); 814} 815 816/** 817 * rsi_send_reset_mac() - This function prepares reset MAC request and sends an 818 * internal management frame to indicate it to firmware. 819 * @common: Pointer to the driver private structure. 820 * 821 * Return: 0 on success, corresponding error code on failure. 822 */ 823static int rsi_send_reset_mac(struct rsi_common *common) 824{ 825 struct sk_buff *skb; 826 struct rsi_mac_frame *mgmt_frame; 827 828 rsi_dbg(MGMT_TX_ZONE, "%s: Sending reset MAC frame\n", __func__); 829 830 skb = dev_alloc_skb(FRAME_DESC_SZ); 831 if (!skb) { 832 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", 833 __func__); 834 return -ENOMEM; 835 } 836 837 memset(skb->data, 0, FRAME_DESC_SZ); 838 mgmt_frame = (struct rsi_mac_frame *)skb->data; 839 840 mgmt_frame->desc_word[0] = cpu_to_le16(RSI_WIFI_MGMT_Q << 12); 841 mgmt_frame->desc_word[1] = cpu_to_le16(RESET_MAC_REQ); 842 mgmt_frame->desc_word[4] = cpu_to_le16(RETRY_COUNT << 8); 843 844 skb_put(skb, FRAME_DESC_SZ); 845 846 return rsi_send_internal_mgmt_frame(common, skb); 847} 848 849/** 850 * rsi_band_check() - This function programs the band 851 * @common: Pointer to the driver private structure. 852 * 853 * Return: 0 on success, corresponding error code on failure. 854 */ 855int rsi_band_check(struct rsi_common *common) 856{ 857 struct rsi_hw *adapter = common->priv; 858 struct ieee80211_hw *hw = adapter->hw; 859 u8 prev_bw = common->channel_width; 860 u8 prev_ep = common->endpoint; 861 struct ieee80211_channel *curchan = hw->conf.chandef.chan; 862 int status = 0; 863 864 if (common->band != curchan->band) { 865 common->rf_reset = 1; 866 common->band = curchan->band; 867 } 868 869 if ((hw->conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) || 870 (hw->conf.chandef.width == NL80211_CHAN_WIDTH_20)) 871 common->channel_width = BW_20MHZ; 872 else 873 common->channel_width = BW_40MHZ; 874 875 if (common->band == IEEE80211_BAND_2GHZ) { 876 if (common->channel_width) 877 common->endpoint = EP_2GHZ_40MHZ; 878 else 879 common->endpoint = EP_2GHZ_20MHZ; 880 } else { 881 if (common->channel_width) 882 common->endpoint = EP_5GHZ_40MHZ; 883 else 884 common->endpoint = EP_5GHZ_20MHZ; 885 } 886 887 if (common->endpoint != prev_ep) { 888 status = rsi_program_bb_rf(common); 889 if (status) 890 return status; 891 } 892 893 if (common->channel_width != prev_bw) { 894 status = rsi_load_bootup_params(common); 895 if (status) 896 return status; 897 898 status = rsi_load_radio_caps(common); 899 if (status) 900 return status; 901 } 902 903 return status; 904} 905 906/** 907 * rsi_set_channel() - This function programs the channel. 908 * @common: Pointer to the driver private structure. 909 * @channel: Channel value to be set. 910 * 911 * Return: 0 on success, corresponding error code on failure. 912 */ 913int rsi_set_channel(struct rsi_common *common, u16 channel) 914{ 915 struct sk_buff *skb = NULL; 916 struct rsi_mac_frame *mgmt_frame; 917 918 rsi_dbg(MGMT_TX_ZONE, 919 "%s: Sending scan req frame\n", __func__); 920 921 skb = dev_alloc_skb(FRAME_DESC_SZ); 922 if (!skb) { 923 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", 924 __func__); 925 return -ENOMEM; 926 } 927 928 memset(skb->data, 0, FRAME_DESC_SZ); 929 mgmt_frame = (struct rsi_mac_frame *)skb->data; 930 931 mgmt_frame->desc_word[0] = cpu_to_le16(RSI_WIFI_MGMT_Q << 12); 932 mgmt_frame->desc_word[1] = cpu_to_le16(SCAN_REQUEST); 933 mgmt_frame->desc_word[4] = cpu_to_le16(channel); 934 935 mgmt_frame->desc_word[7] = cpu_to_le16(PUT_BBP_RESET | 936 BBP_REG_WRITE | 937 (RSI_RF_TYPE << 4)); 938 939 mgmt_frame->desc_word[5] = cpu_to_le16(0x01); 940 mgmt_frame->desc_word[6] = cpu_to_le16(0x12); 941 942 if (common->channel_width == BW_40MHZ) 943 mgmt_frame->desc_word[5] |= cpu_to_le16(0x1 << 8); 944 945 common->channel = channel; 946 947 skb_put(skb, FRAME_DESC_SZ); 948 949 return rsi_send_internal_mgmt_frame(common, skb); 950} 951 952/** 953 * rsi_compare() - This function is used to compare two integers 954 * @a: pointer to the first integer 955 * @b: pointer to the second integer 956 * 957 * Return: 0 if both are equal, -1 if the first is smaller, else 1 958 */ 959static int rsi_compare(const void *a, const void *b) 960{ 961 u16 _a = *(const u16 *)(a); 962 u16 _b = *(const u16 *)(b); 963 964 if (_a > _b) 965 return -1; 966 967 if (_a < _b) 968 return 1; 969 970 return 0; 971} 972 973/** 974 * rsi_map_rates() - This function is used to map selected rates to hw rates. 975 * @rate: The standard rate to be mapped. 976 * @offset: Offset that will be returned. 977 * 978 * Return: 0 if it is a mcs rate, else 1 979 */ 980static bool rsi_map_rates(u16 rate, int *offset) 981{ 982 int kk; 983 for (kk = 0; kk < ARRAY_SIZE(rsi_mcsrates); kk++) { 984 if (rate == mcs[kk]) { 985 *offset = kk; 986 return false; 987 } 988 } 989 990 for (kk = 0; kk < ARRAY_SIZE(rsi_rates); kk++) { 991 if (rate == rsi_rates[kk].bitrate / 5) { 992 *offset = kk; 993 break; 994 } 995 } 996 return true; 997} 998 999/** 1000 * rsi_send_auto_rate_request() - This function is to set rates for connection 1001 * and send autorate request to firmware. 1002 * @common: Pointer to the driver private structure. 1003 * 1004 * Return: 0 on success, corresponding error code on failure. 1005 */ 1006static int rsi_send_auto_rate_request(struct rsi_common *common) 1007{ 1008 struct sk_buff *skb; 1009 struct rsi_auto_rate *auto_rate; 1010 int ii = 0, jj = 0, kk = 0; 1011 struct ieee80211_hw *hw = common->priv->hw; 1012 u8 band = hw->conf.chandef.chan->band; 1013 u8 num_supported_rates = 0; 1014 u8 rate_table_offset, rate_offset = 0; 1015 u32 rate_bitmap = common->bitrate_mask[band]; 1016 1017 u16 *selected_rates, min_rate; 1018 1019 skb = dev_alloc_skb(sizeof(struct rsi_auto_rate)); 1020 if (!skb) { 1021 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", 1022 __func__); 1023 return -ENOMEM; 1024 } 1025 1026 selected_rates = kmalloc(2 * RSI_TBL_SZ, GFP_KERNEL); 1027 if (!selected_rates) { 1028 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of mem\n", 1029 __func__); 1030 dev_kfree_skb(skb); 1031 return -ENOMEM; 1032 } 1033 1034 memset(skb->data, 0, sizeof(struct rsi_auto_rate)); 1035 memset(selected_rates, 0, 2 * RSI_TBL_SZ); 1036 1037 auto_rate = (struct rsi_auto_rate *)skb->data; 1038 1039 auto_rate->aarf_rssi = cpu_to_le16(((u16)3 << 6) | (u16)(18 & 0x3f)); 1040 auto_rate->collision_tolerance = cpu_to_le16(3); 1041 auto_rate->failure_limit = cpu_to_le16(3); 1042 auto_rate->initial_boundary = cpu_to_le16(3); 1043 auto_rate->max_threshold_limt = cpu_to_le16(27); 1044 1045 auto_rate->desc_word[1] = cpu_to_le16(AUTO_RATE_IND); 1046 1047 if (common->channel_width == BW_40MHZ) 1048 auto_rate->desc_word[7] |= cpu_to_le16(1); 1049 1050 if (band == IEEE80211_BAND_2GHZ) { 1051 min_rate = RSI_RATE_1; 1052 rate_table_offset = 0; 1053 } else { 1054 min_rate = RSI_RATE_6; 1055 rate_table_offset = 4; 1056 } 1057 1058 for (ii = 0, jj = 0; 1059 ii < (ARRAY_SIZE(rsi_rates) - rate_table_offset); ii++) { 1060 if (rate_bitmap & BIT(ii)) { 1061 selected_rates[jj++] = 1062 (rsi_rates[ii + rate_table_offset].bitrate / 5); 1063 rate_offset++; 1064 } 1065 } 1066 num_supported_rates = jj; 1067 1068 if (common->vif_info[0].is_ht) { 1069 for (ii = 0; ii < ARRAY_SIZE(mcs); ii++) 1070 selected_rates[jj++] = mcs[ii]; 1071 num_supported_rates += ARRAY_SIZE(mcs); 1072 rate_offset += ARRAY_SIZE(mcs); 1073 } 1074 1075 sort(selected_rates, jj, sizeof(u16), &rsi_compare, NULL); 1076 1077 /* mapping the rates to RSI rates */ 1078 for (ii = 0; ii < jj; ii++) { 1079 if (rsi_map_rates(selected_rates[ii], &kk)) { 1080 auto_rate->supported_rates[ii] = 1081 cpu_to_le16(rsi_rates[kk].hw_value); 1082 } else { 1083 auto_rate->supported_rates[ii] = 1084 cpu_to_le16(rsi_mcsrates[kk]); 1085 } 1086 } 1087 1088 /* loading HT rates in the bottom half of the auto rate table */ 1089 if (common->vif_info[0].is_ht) { 1090 for (ii = rate_offset, kk = ARRAY_SIZE(rsi_mcsrates) - 1; 1091 ii < rate_offset + 2 * ARRAY_SIZE(rsi_mcsrates); ii++) { 1092 if (common->vif_info[0].sgi || 1093 conf_is_ht40(&common->priv->hw->conf)) 1094 auto_rate->supported_rates[ii++] = 1095 cpu_to_le16(rsi_mcsrates[kk] | BIT(9)); 1096 auto_rate->supported_rates[ii] = 1097 cpu_to_le16(rsi_mcsrates[kk--]); 1098 } 1099 1100 for (; ii < (RSI_TBL_SZ - 1); ii++) { 1101 auto_rate->supported_rates[ii] = 1102 cpu_to_le16(rsi_mcsrates[0]); 1103 } 1104 } 1105 1106 for (; ii < RSI_TBL_SZ; ii++) 1107 auto_rate->supported_rates[ii] = cpu_to_le16(min_rate); 1108 1109 auto_rate->num_supported_rates = cpu_to_le16(num_supported_rates * 2); 1110 auto_rate->moderate_rate_inx = cpu_to_le16(num_supported_rates / 2); 1111 auto_rate->desc_word[7] |= cpu_to_le16(0 << 8); 1112 num_supported_rates *= 2; 1113 1114 auto_rate->desc_word[0] = cpu_to_le16((sizeof(*auto_rate) - 1115 FRAME_DESC_SZ) | 1116 (RSI_WIFI_MGMT_Q << 12)); 1117 1118 skb_put(skb, 1119 sizeof(struct rsi_auto_rate)); 1120 kfree(selected_rates); 1121 1122 return rsi_send_internal_mgmt_frame(common, skb); 1123} 1124 1125/** 1126 * rsi_inform_bss_status() - This function informs about bss status with the 1127 * help of sta notify params by sending an internal 1128 * management frame to firmware. 1129 * @common: Pointer to the driver private structure. 1130 * @status: Bss status type. 1131 * @bssid: Bssid. 1132 * @qos_enable: Qos is enabled. 1133 * @aid: Aid (unique for all STAs). 1134 * 1135 * Return: None. 1136 */ 1137void rsi_inform_bss_status(struct rsi_common *common, 1138 u8 status, 1139 const unsigned char *bssid, 1140 u8 qos_enable, 1141 u16 aid) 1142{ 1143 if (status) { 1144 rsi_hal_send_sta_notify_frame(common, 1145 RSI_IFTYPE_STATION, 1146 STA_CONNECTED, 1147 bssid, 1148 qos_enable, 1149 aid); 1150 if (common->min_rate == 0xffff) 1151 rsi_send_auto_rate_request(common); 1152 } else { 1153 rsi_hal_send_sta_notify_frame(common, 1154 RSI_IFTYPE_STATION, 1155 STA_DISCONNECTED, 1156 bssid, 1157 qos_enable, 1158 aid); 1159 } 1160} 1161 1162/** 1163 * rsi_eeprom_read() - This function sends a frame to read the mac address 1164 * from the eeprom. 1165 * @common: Pointer to the driver private structure. 1166 * 1167 * Return: 0 on success, -1 on failure. 1168 */ 1169static int rsi_eeprom_read(struct rsi_common *common) 1170{ 1171 struct rsi_mac_frame *mgmt_frame; 1172 struct sk_buff *skb; 1173 1174 rsi_dbg(MGMT_TX_ZONE, "%s: Sending EEPROM read req frame\n", __func__); 1175 1176 skb = dev_alloc_skb(FRAME_DESC_SZ); 1177 if (!skb) { 1178 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", 1179 __func__); 1180 return -ENOMEM; 1181 } 1182 1183 memset(skb->data, 0, FRAME_DESC_SZ); 1184 mgmt_frame = (struct rsi_mac_frame *)skb->data; 1185 1186 /* FrameType */ 1187 mgmt_frame->desc_word[1] = cpu_to_le16(EEPROM_READ_TYPE); 1188 mgmt_frame->desc_word[0] = cpu_to_le16(RSI_WIFI_MGMT_Q << 12); 1189 /* Number of bytes to read */ 1190 mgmt_frame->desc_word[3] = cpu_to_le16(ETH_ALEN + 1191 WLAN_MAC_MAGIC_WORD_LEN + 1192 WLAN_HOST_MODE_LEN + 1193 WLAN_FW_VERSION_LEN); 1194 /* Address to read */ 1195 mgmt_frame->desc_word[4] = cpu_to_le16(WLAN_MAC_EEPROM_ADDR); 1196 1197 skb_put(skb, FRAME_DESC_SZ); 1198 1199 return rsi_send_internal_mgmt_frame(common, skb); 1200} 1201 1202/** 1203 * This function sends a frame to block/unblock 1204 * data queues in the firmware 1205 * 1206 * @param common Pointer to the driver private structure. 1207 * @param block event - block if true, unblock if false 1208 * @return 0 on success, -1 on failure. 1209 */ 1210int rsi_send_block_unblock_frame(struct rsi_common *common, bool block_event) 1211{ 1212 struct rsi_mac_frame *mgmt_frame; 1213 struct sk_buff *skb; 1214 1215 rsi_dbg(MGMT_TX_ZONE, "%s: Sending block/unblock frame\n", __func__); 1216 1217 skb = dev_alloc_skb(FRAME_DESC_SZ); 1218 if (!skb) { 1219 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n", 1220 __func__); 1221 return -ENOMEM; 1222 } 1223 1224 memset(skb->data, 0, FRAME_DESC_SZ); 1225 mgmt_frame = (struct rsi_mac_frame *)skb->data; 1226 1227 mgmt_frame->desc_word[0] = cpu_to_le16(RSI_WIFI_MGMT_Q << 12); 1228 mgmt_frame->desc_word[1] = cpu_to_le16(BLOCK_HW_QUEUE); 1229 1230 if (block_event == true) { 1231 rsi_dbg(INFO_ZONE, "blocking the data qs\n"); 1232 mgmt_frame->desc_word[4] = cpu_to_le16(0xf); 1233 } else { 1234 rsi_dbg(INFO_ZONE, "unblocking the data qs\n"); 1235 mgmt_frame->desc_word[5] = cpu_to_le16(0xf); 1236 } 1237 1238 skb_put(skb, FRAME_DESC_SZ); 1239 1240 return rsi_send_internal_mgmt_frame(common, skb); 1241 1242} 1243 1244 1245/** 1246 * rsi_handle_ta_confirm_type() - This function handles the confirm frames. 1247 * @common: Pointer to the driver private structure. 1248 * @msg: Pointer to received packet. 1249 * 1250 * Return: 0 on success, -1 on failure. 1251 */ 1252static int rsi_handle_ta_confirm_type(struct rsi_common *common, 1253 u8 *msg) 1254{ 1255 u8 sub_type = (msg[15] & 0xff); 1256 1257 switch (sub_type) { 1258 case BOOTUP_PARAMS_REQUEST: 1259 rsi_dbg(FSM_ZONE, "%s: Boot up params confirm received\n", 1260 __func__); 1261 if (common->fsm_state == FSM_BOOT_PARAMS_SENT) { 1262 if (rsi_eeprom_read(common)) { 1263 common->fsm_state = FSM_CARD_NOT_READY; 1264 goto out; 1265 } else { 1266 common->fsm_state = FSM_EEPROM_READ_MAC_ADDR; 1267 } 1268 } else { 1269 rsi_dbg(INFO_ZONE, 1270 "%s: Received bootup params cfm in %d state\n", 1271 __func__, common->fsm_state); 1272 return 0; 1273 } 1274 break; 1275 1276 case EEPROM_READ_TYPE: 1277 if (common->fsm_state == FSM_EEPROM_READ_MAC_ADDR) { 1278 if (msg[16] == MAGIC_WORD) { 1279 u8 offset = (FRAME_DESC_SZ + WLAN_HOST_MODE_LEN 1280 + WLAN_MAC_MAGIC_WORD_LEN); 1281 memcpy(common->mac_addr, 1282 &msg[offset], 1283 ETH_ALEN); 1284 memcpy(&common->fw_ver, 1285 &msg[offset + ETH_ALEN], 1286 sizeof(struct version_info)); 1287 1288 } else { 1289 common->fsm_state = FSM_CARD_NOT_READY; 1290 break; 1291 } 1292 if (rsi_send_reset_mac(common)) 1293 goto out; 1294 else 1295 common->fsm_state = FSM_RESET_MAC_SENT; 1296 } else { 1297 rsi_dbg(ERR_ZONE, 1298 "%s: Received eeprom mac addr in %d state\n", 1299 __func__, common->fsm_state); 1300 return 0; 1301 } 1302 break; 1303 1304 case RESET_MAC_REQ: 1305 if (common->fsm_state == FSM_RESET_MAC_SENT) { 1306 rsi_dbg(FSM_ZONE, "%s: Reset MAC cfm received\n", 1307 __func__); 1308 1309 if (rsi_load_radio_caps(common)) 1310 goto out; 1311 else 1312 common->fsm_state = FSM_RADIO_CAPS_SENT; 1313 } else { 1314 rsi_dbg(ERR_ZONE, 1315 "%s: Received reset mac cfm in %d state\n", 1316 __func__, common->fsm_state); 1317 return 0; 1318 } 1319 break; 1320 1321 case RADIO_CAPABILITIES: 1322 if (common->fsm_state == FSM_RADIO_CAPS_SENT) { 1323 common->rf_reset = 1; 1324 if (rsi_program_bb_rf(common)) { 1325 goto out; 1326 } else { 1327 common->fsm_state = FSM_BB_RF_PROG_SENT; 1328 rsi_dbg(FSM_ZONE, "%s: Radio cap cfm received\n", 1329 __func__); 1330 } 1331 } else { 1332 rsi_dbg(INFO_ZONE, 1333 "%s: Received radio caps cfm in %d state\n", 1334 __func__, common->fsm_state); 1335 return 0; 1336 } 1337 break; 1338 1339 case BB_PROG_VALUES_REQUEST: 1340 case RF_PROG_VALUES_REQUEST: 1341 case BBP_PROG_IN_TA: 1342 rsi_dbg(FSM_ZONE, "%s: BB/RF cfm received\n", __func__); 1343 if (common->fsm_state == FSM_BB_RF_PROG_SENT) { 1344 common->bb_rf_prog_count--; 1345 if (!common->bb_rf_prog_count) { 1346 common->fsm_state = FSM_MAC_INIT_DONE; 1347 return rsi_mac80211_attach(common); 1348 } 1349 } else { 1350 rsi_dbg(INFO_ZONE, 1351 "%s: Received bbb_rf cfm in %d state\n", 1352 __func__, common->fsm_state); 1353 return 0; 1354 } 1355 break; 1356 1357 default: 1358 rsi_dbg(INFO_ZONE, "%s: Invalid TA confirm pkt received\n", 1359 __func__); 1360 break; 1361 } 1362 return 0; 1363out: 1364 rsi_dbg(ERR_ZONE, "%s: Unable to send pkt/Invalid frame received\n", 1365 __func__); 1366 return -EINVAL; 1367} 1368 1369/** 1370 * rsi_mgmt_pkt_recv() - This function processes the management packets 1371 * recieved from the hardware. 1372 * @common: Pointer to the driver private structure. 1373 * @msg: Pointer to the received packet. 1374 * 1375 * Return: 0 on success, -1 on failure. 1376 */ 1377int rsi_mgmt_pkt_recv(struct rsi_common *common, u8 *msg) 1378{ 1379 s32 msg_len = (le16_to_cpu(*(__le16 *)&msg[0]) & 0x0fff); 1380 u16 msg_type = (msg[2]); 1381 int ret; 1382 1383 rsi_dbg(FSM_ZONE, "%s: Msg Len: %d, Msg Type: %4x\n", 1384 __func__, msg_len, msg_type); 1385 1386 if (msg_type == TA_CONFIRM_TYPE) { 1387 return rsi_handle_ta_confirm_type(common, msg); 1388 } else if (msg_type == CARD_READY_IND) { 1389 rsi_dbg(FSM_ZONE, "%s: Card ready indication received\n", 1390 __func__); 1391 if (common->fsm_state == FSM_CARD_NOT_READY) { 1392 rsi_set_default_parameters(common); 1393 1394 ret = rsi_load_bootup_params(common); 1395 if (ret) 1396 return ret; 1397 else 1398 common->fsm_state = FSM_BOOT_PARAMS_SENT; 1399 } else { 1400 return -EINVAL; 1401 } 1402 } else if (msg_type == TX_STATUS_IND) { 1403 if (msg[15] == PROBEREQ_CONFIRM) { 1404 common->mgmt_q_block = false; 1405 rsi_dbg(FSM_ZONE, "%s: Probe confirm received\n", 1406 __func__); 1407 } 1408 } else { 1409 return rsi_mgmt_pkt_to_core(common, msg, msg_len, msg_type); 1410 } 1411 return 0; 1412} 1413