drivers/net/wireless/realtek/rtw88/fw.c

   1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
   2 /* Copyright(c) 2018-2019  Realtek Corporation
   3  */
   4
   5 #include "main.h"
   6 #include "fw.h"
   7 #include "tx.h"
   8 #include "reg.h"
   9 #include "debug.h"
  10
  11 void rtw_fw_c2h_cmd_handle_ext(struct rtw_dev *rtwdev, struct sk_buff *skb)
  12 {
  13         struct rtw_c2h_cmd *c2h;
  14         u8 sub_cmd_id;
  15
  16         c2h = get_c2h_from_skb(skb);
  17         sub_cmd_id = c2h->payload[0];
  18
  19         switch (sub_cmd_id) {
  20         case C2H_CCX_RPT:
  21                 rtw_tx_report_handle(rtwdev, skb);
  22                 break;
  23         default:
  24                 break;
  25         }
  26 }
  27
  28 void rtw_fw_c2h_cmd_handle(struct rtw_dev *rtwdev, struct sk_buff *skb)
  29 {
  30         struct rtw_c2h_cmd *c2h;
  31         u32 pkt_offset;
  32         u8 len;
  33
  34         pkt_offset = *((u32 *)skb->cb);
  35         c2h = (struct rtw_c2h_cmd *)(skb->data + pkt_offset);
  36         len = skb->len - pkt_offset - 2;
  37
  38         rtw_dbg(rtwdev, RTW_DBG_FW, "recv C2H, id=0x%02x, seq=0x%02x, len=%d\n",
  39                 c2h->id, c2h->seq, len);
  40
  41         switch (c2h->id) {
  42         case C2H_HALMAC:
  43                 rtw_fw_c2h_cmd_handle_ext(rtwdev, skb);
  44                 break;
  45         default:
  46                 break;
  47         }
  48 }
  49
  50 void rtw_fw_send_h2c_command(struct rtw_dev *rtwdev, u8 *h2c)
  51 {
  52         u8 box;
  53         u8 box_state;
  54         u32 box_reg, box_ex_reg;
  55         u32 h2c_wait;
  56         int idx;
  57
  58         rtw_dbg(rtwdev, RTW_DBG_FW,
  59                 "send H2C content %02x%02x%02x%02x %02x%02x%02x%02x\n",
  60                 h2c[3], h2c[2], h2c[1], h2c[0],
  61                 h2c[7], h2c[6], h2c[5], h2c[4]);
  62
  63         spin_lock(&rtwdev->h2c.lock);
  64
  65         box = rtwdev->h2c.last_box_num;
  66         switch (box) {
  67         case 0:
  68                 box_reg = REG_HMEBOX0;
  69                 box_ex_reg = REG_HMEBOX0_EX;
  70                 break;
  71         case 1:
  72                 box_reg = REG_HMEBOX1;
  73                 box_ex_reg = REG_HMEBOX1_EX;
  74                 break;
  75         case 2:
  76                 box_reg = REG_HMEBOX2;
  77                 box_ex_reg = REG_HMEBOX2_EX;
  78                 break;
  79         case 3:
  80                 box_reg = REG_HMEBOX3;
  81                 box_ex_reg = REG_HMEBOX3_EX;
  82                 break;
  83         default:
  84                 WARN(1, "invalid h2c mail box number\n");
  85                 goto out;
  86         }
  87
  88         h2c_wait = 20;
  89         do {
  90                 box_state = rtw_read8(rtwdev, REG_HMETFR);
  91         } while ((box_state >> box) & 0x1 && --h2c_wait > 0);
  92
  93         if (!h2c_wait) {
  94                 rtw_err(rtwdev, "failed to send h2c command\n");
  95                 goto out;
  96         }
  97
  98         for (idx = 0; idx < 4; idx++)
  99                 rtw_write8(rtwdev, box_reg + idx, h2c[idx]);
 100         for (idx = 0; idx < 4; idx++)
 101                 rtw_write8(rtwdev, box_ex_reg + idx, h2c[idx + 4]);
 102
 103         if (++rtwdev->h2c.last_box_num >= 4)
 104                 rtwdev->h2c.last_box_num = 0;
 105
 106 out:
 107         spin_unlock(&rtwdev->h2c.lock);
 108 }
 109
 110 static void rtw_fw_send_h2c_packet(struct rtw_dev *rtwdev, u8 *h2c_pkt)
 111 {
 112         int ret;
 113
 114         spin_lock(&rtwdev->h2c.lock);
 115
 116         FW_OFFLOAD_H2C_SET_SEQ_NUM(h2c_pkt, rtwdev->h2c.seq);
 117         ret = rtw_hci_write_data_h2c(rtwdev, h2c_pkt, H2C_PKT_SIZE);
 118         if (ret)
 119                 rtw_err(rtwdev, "failed to send h2c packet\n");
 120         rtwdev->h2c.seq++;
 121
 122         spin_unlock(&rtwdev->h2c.lock);
 123 }
 124
 125 void
 126 rtw_fw_send_general_info(struct rtw_dev *rtwdev)
 127 {
 128         struct rtw_fifo_conf *fifo = &rtwdev->fifo;
 129         u8 h2c_pkt[H2C_PKT_SIZE] = {0};
 130         u16 total_size = H2C_PKT_HDR_SIZE + 4;
 131
 132         rtw_h2c_pkt_set_header(h2c_pkt, H2C_PKT_GENERAL_INFO);
 133
 134         SET_PKT_H2C_TOTAL_LEN(h2c_pkt, total_size);
 135
 136         GENERAL_INFO_SET_FW_TX_BOUNDARY(h2c_pkt,
 137                                         fifo->rsvd_fw_txbuf_addr -
 138                                         fifo->rsvd_boundary);
 139
 140         rtw_fw_send_h2c_packet(rtwdev, h2c_pkt);
 141 }
 142
 143 void
 144 rtw_fw_send_phydm_info(struct rtw_dev *rtwdev)
 145 {
 146         struct rtw_hal *hal = &rtwdev->hal;
 147         struct rtw_efuse *efuse = &rtwdev->efuse;
 148         u8 h2c_pkt[H2C_PKT_SIZE] = {0};
 149         u16 total_size = H2C_PKT_HDR_SIZE + 8;
 150         u8 fw_rf_type = 0;
 151
 152         if (hal->rf_type == RF_1T1R)
 153                 fw_rf_type = FW_RF_1T1R;
 154         else if (hal->rf_type == RF_2T2R)
 155                 fw_rf_type = FW_RF_2T2R;
 156
 157         rtw_h2c_pkt_set_header(h2c_pkt, H2C_PKT_PHYDM_INFO);
 158
 159         SET_PKT_H2C_TOTAL_LEN(h2c_pkt, total_size);
 160         PHYDM_INFO_SET_REF_TYPE(h2c_pkt, efuse->rfe_option);
 161         PHYDM_INFO_SET_RF_TYPE(h2c_pkt, fw_rf_type);
 162         PHYDM_INFO_SET_CUT_VER(h2c_pkt, hal->cut_version);
 163         PHYDM_INFO_SET_RX_ANT_STATUS(h2c_pkt, hal->antenna_tx);
 164         PHYDM_INFO_SET_TX_ANT_STATUS(h2c_pkt, hal->antenna_rx);
 165
 166         rtw_fw_send_h2c_packet(rtwdev, h2c_pkt);
 167 }
 168
 169 void rtw_fw_do_iqk(struct rtw_dev *rtwdev, struct rtw_iqk_para *para)
 170 {
 171         u8 h2c_pkt[H2C_PKT_SIZE] = {0};
 172         u16 total_size = H2C_PKT_HDR_SIZE + 1;
 173
 174         rtw_h2c_pkt_set_header(h2c_pkt, H2C_PKT_IQK);
 175         SET_PKT_H2C_TOTAL_LEN(h2c_pkt, total_size);
 176         IQK_SET_CLEAR(h2c_pkt, para->clear);
 177         IQK_SET_SEGMENT_IQK(h2c_pkt, para->segment_iqk);
 178
 179         rtw_fw_send_h2c_packet(rtwdev, h2c_pkt);
 180 }
 181
 182 void rtw_fw_send_rssi_info(struct rtw_dev *rtwdev, struct rtw_sta_info *si)
 183 {
 184         u8 h2c_pkt[H2C_PKT_SIZE] = {0};
 185         u8 rssi = ewma_rssi_read(&si->avg_rssi);
 186         bool stbc_en = si->stbc_en ? true : false;
 187
 188         SET_H2C_CMD_ID_CLASS(h2c_pkt, H2C_CMD_RSSI_MONITOR);
 189
 190         SET_RSSI_INFO_MACID(h2c_pkt, si->mac_id);
 191         SET_RSSI_INFO_RSSI(h2c_pkt, rssi);
 192         SET_RSSI_INFO_STBC(h2c_pkt, stbc_en);
 193
 194         rtw_fw_send_h2c_command(rtwdev, h2c_pkt);
 195 }
 196
 197 void rtw_fw_send_ra_info(struct rtw_dev *rtwdev, struct rtw_sta_info *si)
 198 {
 199         u8 h2c_pkt[H2C_PKT_SIZE] = {0};
 200         bool no_update = si->updated;
 201         bool disable_pt = true;
 202
 203         SET_H2C_CMD_ID_CLASS(h2c_pkt, H2C_CMD_RA_INFO);
 204
 205         SET_RA_INFO_MACID(h2c_pkt, si->mac_id);
 206         SET_RA_INFO_RATE_ID(h2c_pkt, si->rate_id);
 207         SET_RA_INFO_INIT_RA_LVL(h2c_pkt, si->init_ra_lv);
 208         SET_RA_INFO_SGI_EN(h2c_pkt, si->sgi_enable);
 209         SET_RA_INFO_BW_MODE(h2c_pkt, si->bw_mode);
 210         SET_RA_INFO_LDPC(h2c_pkt, si->ldpc_en);
 211         SET_RA_INFO_NO_UPDATE(h2c_pkt, no_update);
 212         SET_RA_INFO_VHT_EN(h2c_pkt, si->vht_enable);
 213         SET_RA_INFO_DIS_PT(h2c_pkt, disable_pt);
 214         SET_RA_INFO_RA_MASK0(h2c_pkt, (si->ra_mask & 0xff));
 215         SET_RA_INFO_RA_MASK1(h2c_pkt, (si->ra_mask & 0xff00) >> 8);
 216         SET_RA_INFO_RA_MASK2(h2c_pkt, (si->ra_mask & 0xff0000) >> 16);
 217         SET_RA_INFO_RA_MASK3(h2c_pkt, (si->ra_mask & 0xff000000) >> 24);
 218
 219         si->init_ra_lv = 0;
 220         si->updated = true;
 221
 222         rtw_fw_send_h2c_command(rtwdev, h2c_pkt);
 223 }
 224
 225 void rtw_fw_media_status_report(struct rtw_dev *rtwdev, u8 mac_id, bool connect)
 226 {
 227         u8 h2c_pkt[H2C_PKT_SIZE] = {0};
 228
 229         SET_H2C_CMD_ID_CLASS(h2c_pkt, H2C_CMD_MEDIA_STATUS_RPT);
 230         MEDIA_STATUS_RPT_SET_OP_MODE(h2c_pkt, connect);
 231         MEDIA_STATUS_RPT_SET_MACID(h2c_pkt, mac_id);
 232
 233         rtw_fw_send_h2c_command(rtwdev, h2c_pkt);
 234 }
 235
 236 void rtw_fw_set_pwr_mode(struct rtw_dev *rtwdev)
 237 {
 238         struct rtw_lps_conf *conf = &rtwdev->lps_conf;
 239         u8 h2c_pkt[H2C_PKT_SIZE] = {0};
 240
 241         SET_H2C_CMD_ID_CLASS(h2c_pkt, H2C_CMD_SET_PWR_MODE);
 242
 243         SET_PWR_MODE_SET_MODE(h2c_pkt, conf->mode);
 244         SET_PWR_MODE_SET_RLBM(h2c_pkt, conf->rlbm);
 245         SET_PWR_MODE_SET_SMART_PS(h2c_pkt, conf->smart_ps);
 246         SET_PWR_MODE_SET_AWAKE_INTERVAL(h2c_pkt, conf->awake_interval);
 247         SET_PWR_MODE_SET_PORT_ID(h2c_pkt, conf->port_id);
 248         SET_PWR_MODE_SET_PWR_STATE(h2c_pkt, conf->state);
 249
 250         rtw_fw_send_h2c_command(rtwdev, h2c_pkt);
 251 }
 252
 253 static u8 rtw_get_rsvd_page_location(struct rtw_dev *rtwdev,
 254                                      enum rtw_rsvd_packet_type type)
 255 {
 256         struct rtw_rsvd_page *rsvd_pkt;
 257         u8 location = 0;
 258
 259         list_for_each_entry(rsvd_pkt, &rtwdev->rsvd_page_list, list) {
 260                 if (type == rsvd_pkt->type)
 261                         location = rsvd_pkt->page;
 262         }
 263
 264         return location;
 265 }
 266
 267 void rtw_send_rsvd_page_h2c(struct rtw_dev *rtwdev)
 268 {
 269         u8 h2c_pkt[H2C_PKT_SIZE] = {0};
 270         u8 location = 0;
 271
 272         SET_H2C_CMD_ID_CLASS(h2c_pkt, H2C_CMD_RSVD_PAGE);
 273
 274         location = rtw_get_rsvd_page_location(rtwdev, RSVD_PROBE_RESP);
 275         *(h2c_pkt + 1) = location;
 276         rtw_dbg(rtwdev, RTW_DBG_FW, "RSVD_PROBE_RESP loc: %d\n", location);
 277
 278         location = rtw_get_rsvd_page_location(rtwdev, RSVD_PS_POLL);
 279         *(h2c_pkt + 2) = location;
 280         rtw_dbg(rtwdev, RTW_DBG_FW, "RSVD_PS_POLL loc: %d\n", location);
 281
 282         location = rtw_get_rsvd_page_location(rtwdev, RSVD_NULL);
 283         *(h2c_pkt + 3) = location;
 284         rtw_dbg(rtwdev, RTW_DBG_FW, "RSVD_NULL loc: %d\n", location);
 285
 286         location = rtw_get_rsvd_page_location(rtwdev, RSVD_QOS_NULL);
 287         *(h2c_pkt + 4) = location;
 288         rtw_dbg(rtwdev, RTW_DBG_FW, "RSVD_QOS_NULL loc: %d\n", location);
 289
 290         rtw_fw_send_h2c_command(rtwdev, h2c_pkt);
 291 }
 292
 293 static struct sk_buff *
 294 rtw_beacon_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 295 {
 296         struct sk_buff *skb_new;
 297
 298         if (vif->type != NL80211_IFTYPE_AP &&
 299             vif->type != NL80211_IFTYPE_ADHOC &&
 300             !ieee80211_vif_is_mesh(vif)) {
 301                 skb_new = alloc_skb(1, GFP_KERNEL);
 302                 if (!skb_new)
 303                         return NULL;
 304                 skb_put(skb_new, 1);
 305         } else {
 306                 skb_new = ieee80211_beacon_get(hw, vif);
 307         }
 308
 309         return skb_new;
 310 }
 311
 312 static struct sk_buff *rtw_get_rsvd_page_skb(struct ieee80211_hw *hw,
 313                                              struct ieee80211_vif *vif,
 314                                              enum rtw_rsvd_packet_type type)
 315 {
 316         struct sk_buff *skb_new;
 317
 318         switch (type) {
 319         case RSVD_BEACON:
 320                 skb_new = rtw_beacon_get(hw, vif);
 321                 break;
 322         case RSVD_PS_POLL:
 323                 skb_new = ieee80211_pspoll_get(hw, vif);
 324                 break;
 325         case RSVD_PROBE_RESP:
 326                 skb_new = ieee80211_proberesp_get(hw, vif);
 327                 break;
 328         case RSVD_NULL:
 329                 skb_new = ieee80211_nullfunc_get(hw, vif, false);
 330                 break;
 331         case RSVD_QOS_NULL:
 332                 skb_new = ieee80211_nullfunc_get(hw, vif, true);
 333                 break;
 334         default:
 335                 return NULL;
 336         }
 337
 338         if (!skb_new)
 339                 return NULL;
 340
 341         return skb_new;
 342 }
 343
 344 static void rtw_fill_rsvd_page_desc(struct rtw_dev *rtwdev, struct sk_buff *skb)
 345 {
 346         struct rtw_tx_pkt_info pkt_info;
 347         struct rtw_chip_info *chip = rtwdev->chip;
 348         u8 *pkt_desc;
 349
 350         memset(&pkt_info, 0, sizeof(pkt_info));
 351         rtw_rsvd_page_pkt_info_update(rtwdev, &pkt_info, skb);
 352         pkt_desc = skb_push(skb, chip->tx_pkt_desc_sz);
 353         memset(pkt_desc, 0, chip->tx_pkt_desc_sz);
 354         rtw_tx_fill_tx_desc(&pkt_info, skb);
 355 }
 356
 357 static inline u8 rtw_len_to_page(unsigned int len, u8 page_size)
 358 {
 359         return DIV_ROUND_UP(len, page_size);
 360 }
 361
 362 static void rtw_rsvd_page_list_to_buf(struct rtw_dev *rtwdev, u8 page_size,
 363                                       u8 page_margin, u32 page, u8 *buf,
 364                                       struct rtw_rsvd_page *rsvd_pkt)
 365 {
 366         struct sk_buff *skb = rsvd_pkt->skb;
 367
 368         if (rsvd_pkt->add_txdesc)
 369                 rtw_fill_rsvd_page_desc(rtwdev, skb);
 370
 371         if (page >= 1)
 372                 memcpy(buf + page_margin + page_size * (page - 1),
 373                        skb->data, skb->len);
 374         else
 375                 memcpy(buf, skb->data, skb->len);
 376 }
 377
 378 void rtw_add_rsvd_page(struct rtw_dev *rtwdev, enum rtw_rsvd_packet_type type,
 379                        bool txdesc)
 380 {
 381         struct rtw_rsvd_page *rsvd_pkt;
 382
 383         lockdep_assert_held(&rtwdev->mutex);
 384
 385         list_for_each_entry(rsvd_pkt, &rtwdev->rsvd_page_list, list) {
 386                 if (rsvd_pkt->type == type)
 387                         return;
 388         }
 389
 390         rsvd_pkt = kmalloc(sizeof(*rsvd_pkt), GFP_KERNEL);
 391         if (!rsvd_pkt)
 392                 return;
 393
 394         rsvd_pkt->type = type;
 395         rsvd_pkt->add_txdesc = txdesc;
 396         list_add_tail(&rsvd_pkt->list, &rtwdev->rsvd_page_list);
 397 }
 398
 399 void rtw_reset_rsvd_page(struct rtw_dev *rtwdev)
 400 {
 401         struct rtw_rsvd_page *rsvd_pkt, *tmp;
 402
 403         lockdep_assert_held(&rtwdev->mutex);
 404
 405         list_for_each_entry_safe(rsvd_pkt, tmp, &rtwdev->rsvd_page_list, list) {
 406                 if (rsvd_pkt->type == RSVD_BEACON)
 407                         continue;
 408                 list_del(&rsvd_pkt->list);
 409                 kfree(rsvd_pkt);
 410         }
 411 }
 412
 413 int rtw_fw_write_data_rsvd_page(struct rtw_dev *rtwdev, u16 pg_addr,
 414                                 u8 *buf, u32 size)
 415 {
 416         u8 bckp[2];
 417         u8 val;
 418         u16 rsvd_pg_head;
 419         int ret;
 420
 421         lockdep_assert_held(&rtwdev->mutex);
 422
 423         if (!size)
 424                 return -EINVAL;
 425
 426         pg_addr &= BIT_MASK_BCN_HEAD_1_V1;
 427         rtw_write16(rtwdev, REG_FIFOPAGE_CTRL_2, pg_addr | BIT_BCN_VALID_V1);
 428
 429         val = rtw_read8(rtwdev, REG_CR + 1);
 430         bckp[0] = val;
 431         val |= BIT_ENSWBCN >> 8;
 432         rtw_write8(rtwdev, REG_CR + 1, val);
 433
 434         val = rtw_read8(rtwdev, REG_FWHW_TXQ_CTRL + 2);
 435         bckp[1] = val;
 436         val &= ~(BIT_EN_BCNQ_DL >> 16);
 437         rtw_write8(rtwdev, REG_FWHW_TXQ_CTRL + 2, val);
 438
 439         ret = rtw_hci_write_data_rsvd_page(rtwdev, buf, size);
 440         if (ret) {
 441                 rtw_err(rtwdev, "failed to write data to rsvd page\n");
 442                 goto restore;
 443         }
 444
 445         if (!check_hw_ready(rtwdev, REG_FIFOPAGE_CTRL_2, BIT_BCN_VALID_V1, 1)) {
 446                 rtw_err(rtwdev, "error beacon valid\n");
 447                 ret = -EBUSY;
 448         }
 449
 450 restore:
 451         rsvd_pg_head = rtwdev->fifo.rsvd_boundary;
 452         rtw_write16(rtwdev, REG_FIFOPAGE_CTRL_2,
 453                     rsvd_pg_head | BIT_BCN_VALID_V1);
 454         rtw_write8(rtwdev, REG_FWHW_TXQ_CTRL + 2, bckp[1]);
 455         rtw_write8(rtwdev, REG_CR + 1, bckp[0]);
 456
 457         return ret;
 458 }
 459
 460 static int rtw_download_drv_rsvd_page(struct rtw_dev *rtwdev, u8 *buf, u32 size)
 461 {
 462         u32 pg_size;
 463         u32 pg_num = 0;
 464         u16 pg_addr = 0;
 465
 466         pg_size = rtwdev->chip->page_size;
 467         pg_num = size / pg_size + ((size & (pg_size - 1)) ? 1 : 0);
 468         if (pg_num > rtwdev->fifo.rsvd_drv_pg_num)
 469                 return -ENOMEM;
 470
 471         pg_addr = rtwdev->fifo.rsvd_drv_addr;
 472
 473         return rtw_fw_write_data_rsvd_page(rtwdev, pg_addr, buf, size);
 474 }
 475
 476 static u8 *rtw_build_rsvd_page(struct rtw_dev *rtwdev,
 477                                struct ieee80211_vif *vif, u32 *size)
 478 {
 479         struct ieee80211_hw *hw = rtwdev->hw;
 480         struct rtw_chip_info *chip = rtwdev->chip;
 481         struct sk_buff *iter;
 482         struct rtw_rsvd_page *rsvd_pkt;
 483         u32 page = 0;
 484         u8 total_page = 0;
 485         u8 page_size, page_margin, tx_desc_sz;
 486         u8 *buf;
 487
 488         page_size = chip->page_size;
 489         tx_desc_sz = chip->tx_pkt_desc_sz;
 490         page_margin = page_size - tx_desc_sz;
 491
 492         list_for_each_entry(rsvd_pkt, &rtwdev->rsvd_page_list, list) {
 493                 iter = rtw_get_rsvd_page_skb(hw, vif, rsvd_pkt->type);
 494                 if (!iter) {
 495                         rtw_err(rtwdev, "fail to build rsvd packet\n");
 496                         goto release_skb;
 497                 }
 498                 rsvd_pkt->skb = iter;
 499                 rsvd_pkt->page = total_page;
 500                 if (rsvd_pkt->add_txdesc)
 501                         total_page += rtw_len_to_page(iter->len + tx_desc_sz,
 502                                                       page_size);
 503                 else
 504                         total_page += rtw_len_to_page(iter->len, page_size);
 505         }
 506
 507         if (total_page > rtwdev->fifo.rsvd_drv_pg_num) {
 508                 rtw_err(rtwdev, "rsvd page over size: %d\n", total_page);
 509                 goto release_skb;
 510         }
 511
 512         *size = (total_page - 1) * page_size + page_margin;
 513         buf = kzalloc(*size, GFP_KERNEL);
 514         if (!buf)
 515                 goto release_skb;
 516
 517         list_for_each_entry(rsvd_pkt, &rtwdev->rsvd_page_list, list) {
 518                 rtw_rsvd_page_list_to_buf(rtwdev, page_size, page_margin,
 519                                           page, buf, rsvd_pkt);
 520                 page += rtw_len_to_page(rsvd_pkt->skb->len, page_size);
 521         }
 522         list_for_each_entry(rsvd_pkt, &rtwdev->rsvd_page_list, list)
 523                 kfree_skb(rsvd_pkt->skb);
 524
 525         return buf;
 526
 527 release_skb:
 528         list_for_each_entry(rsvd_pkt, &rtwdev->rsvd_page_list, list)
 529                 kfree_skb(rsvd_pkt->skb);
 530
 531         return NULL;
 532 }
 533
 534 static int
 535 rtw_download_beacon(struct rtw_dev *rtwdev, struct ieee80211_vif *vif)
 536 {
 537         struct ieee80211_hw *hw = rtwdev->hw;
 538         struct sk_buff *skb;
 539         int ret = 0;
 540
 541         skb = rtw_beacon_get(hw, vif);
 542         if (!skb) {
 543                 rtw_err(rtwdev, "failed to get beacon skb\n");
 544                 ret = -ENOMEM;
 545                 goto out;
 546         }
 547
 548         ret = rtw_download_drv_rsvd_page(rtwdev, skb->data, skb->len);
 549         if (ret)
 550                 rtw_err(rtwdev, "failed to download drv rsvd page\n");
 551
 552         dev_kfree_skb(skb);
 553
 554 out:
 555         return ret;
 556 }
 557
 558 int rtw_fw_download_rsvd_page(struct rtw_dev *rtwdev, struct ieee80211_vif *vif)
 559 {
 560         u8 *buf;
 561         u32 size;
 562         int ret;
 563
 564         buf = rtw_build_rsvd_page(rtwdev, vif, &size);
 565         if (!buf) {
 566                 rtw_err(rtwdev, "failed to build rsvd page pkt\n");
 567                 return -ENOMEM;
 568         }
 569
 570         ret = rtw_download_drv_rsvd_page(rtwdev, buf, size);
 571         if (ret) {
 572                 rtw_err(rtwdev, "failed to download drv rsvd page\n");
 573                 goto free;
 574         }
 575
 576         ret = rtw_download_beacon(rtwdev, vif);
 577         if (ret) {
 578                 rtw_err(rtwdev, "failed to download beacon\n");
 579                 goto free;
 580         }
 581
 582 free:
 583         kfree(buf);
 584
 585         return ret;
 586 }
 587
 588 int rtw_dump_drv_rsvd_page(struct rtw_dev *rtwdev,
 589                            u32 offset, u32 size, u32 *buf)
 590 {
 591         struct rtw_fifo_conf *fifo = &rtwdev->fifo;
 592         u32 residue, i;
 593         u16 start_pg;
 594         u16 idx = 0;
 595         u16 ctl;
 596         u8 rcr;
 597
 598         if (size & 0x3) {
 599                 rtw_warn(rtwdev, "should be 4-byte aligned\n");
 600                 return -EINVAL;
 601         }
 602
 603         offset += fifo->rsvd_boundary << TX_PAGE_SIZE_SHIFT;
 604         residue = offset & (FIFO_PAGE_SIZE - 1);
 605         start_pg = offset >> FIFO_PAGE_SIZE_SHIFT;
 606         start_pg += RSVD_PAGE_START_ADDR;
 607
 608         rcr = rtw_read8(rtwdev, REG_RCR + 2);
 609         ctl = rtw_read16(rtwdev, REG_PKTBUF_DBG_CTRL) & 0xf000;
 610
 611         /* disable rx clock gate */
 612         rtw_write8(rtwdev, REG_RCR, rcr | BIT(3));
 613
 614         do {
 615                 rtw_write16(rtwdev, REG_PKTBUF_DBG_CTRL, start_pg | ctl);
 616
 617                 for (i = FIFO_DUMP_ADDR + residue;
 618                      i < FIFO_DUMP_ADDR + FIFO_PAGE_SIZE; i += 4) {
 619                         buf[idx++] = rtw_read32(rtwdev, i);
 620                         size -= 4;
 621                         if (size == 0)
 622                                 goto out;
 623                 }
 624
 625                 residue = 0;
 626                 start_pg++;
 627         } while (size);
 628
 629 out:
 630         rtw_write16(rtwdev, REG_PKTBUF_DBG_CTRL, ctl);
 631         rtw_write8(rtwdev, REG_RCR + 2, rcr);
 632         return 0;
 633 }