1bdcd8170SKalle Valo /* 2bdcd8170SKalle Valo * Copyright (c) 2004-2011 Atheros Communications Inc. 3bdcd8170SKalle Valo * 4bdcd8170SKalle Valo * Permission to use, copy, modify, and/or distribute this software for any 5bdcd8170SKalle Valo * purpose with or without fee is hereby granted, provided that the above 6bdcd8170SKalle Valo * copyright notice and this permission notice appear in all copies. 7bdcd8170SKalle Valo * 8bdcd8170SKalle Valo * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9bdcd8170SKalle Valo * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10bdcd8170SKalle Valo * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11bdcd8170SKalle Valo * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12bdcd8170SKalle Valo * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13bdcd8170SKalle Valo * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14bdcd8170SKalle Valo * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15bdcd8170SKalle Valo */ 16bdcd8170SKalle Valo 17bdcd8170SKalle Valo #include "core.h" 18bdcd8170SKalle Valo #include "hif-ops.h" 19bdcd8170SKalle Valo #include "cfg80211.h" 20bdcd8170SKalle Valo #include "target.h" 21bdcd8170SKalle Valo #include "debug.h" 22bdcd8170SKalle Valo 236765d0aaSVasanthakumar Thiagarajan struct ath6kl_sta *ath6kl_find_sta(struct ath6kl_vif *vif, u8 *node_addr) 24bdcd8170SKalle Valo { 256765d0aaSVasanthakumar Thiagarajan struct ath6kl *ar = vif->ar; 26bdcd8170SKalle Valo struct ath6kl_sta *conn = NULL; 27bdcd8170SKalle Valo u8 i, max_conn; 28bdcd8170SKalle Valo 29f5938f24SVasanthakumar Thiagarajan max_conn = (vif->nw_type == AP_NETWORK) ? AP_MAX_NUM_STA : 0; 30bdcd8170SKalle Valo 31bdcd8170SKalle Valo for (i = 0; i < max_conn; i++) { 32bdcd8170SKalle Valo if (memcmp(node_addr, ar->sta_list[i].mac, ETH_ALEN) == 0) { 33bdcd8170SKalle Valo conn = &ar->sta_list[i]; 34bdcd8170SKalle Valo break; 35bdcd8170SKalle Valo } 36bdcd8170SKalle Valo } 37bdcd8170SKalle Valo 38bdcd8170SKalle Valo return conn; 39bdcd8170SKalle Valo } 40bdcd8170SKalle Valo 41bdcd8170SKalle Valo struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid) 42bdcd8170SKalle Valo { 43bdcd8170SKalle Valo struct ath6kl_sta *conn = NULL; 44bdcd8170SKalle Valo u8 ctr; 45bdcd8170SKalle Valo 46bdcd8170SKalle Valo for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { 47bdcd8170SKalle Valo if (ar->sta_list[ctr].aid == aid) { 48bdcd8170SKalle Valo conn = &ar->sta_list[ctr]; 49bdcd8170SKalle Valo break; 50bdcd8170SKalle Valo } 51bdcd8170SKalle Valo } 52bdcd8170SKalle Valo return conn; 53bdcd8170SKalle Valo } 54bdcd8170SKalle Valo 55bdcd8170SKalle Valo static void ath6kl_add_new_sta(struct ath6kl *ar, u8 *mac, u16 aid, u8 *wpaie, 56bdcd8170SKalle Valo u8 ielen, u8 keymgmt, u8 ucipher, u8 auth) 57bdcd8170SKalle Valo { 58bdcd8170SKalle Valo struct ath6kl_sta *sta; 59bdcd8170SKalle Valo u8 free_slot; 60bdcd8170SKalle Valo 61bdcd8170SKalle Valo free_slot = aid - 1; 62bdcd8170SKalle Valo 63bdcd8170SKalle Valo sta = &ar->sta_list[free_slot]; 64bdcd8170SKalle Valo memcpy(sta->mac, mac, ETH_ALEN); 653c774bbaSJouni Malinen if (ielen <= ATH6KL_MAX_IE) 66bdcd8170SKalle Valo memcpy(sta->wpa_ie, wpaie, ielen); 67bdcd8170SKalle Valo sta->aid = aid; 68bdcd8170SKalle Valo sta->keymgmt = keymgmt; 69bdcd8170SKalle Valo sta->ucipher = ucipher; 70bdcd8170SKalle Valo sta->auth = auth; 71bdcd8170SKalle Valo 72bdcd8170SKalle Valo ar->sta_list_index = ar->sta_list_index | (1 << free_slot); 73bdcd8170SKalle Valo ar->ap_stats.sta[free_slot].aid = cpu_to_le32(aid); 74bdcd8170SKalle Valo } 75bdcd8170SKalle Valo 76bdcd8170SKalle Valo static void ath6kl_sta_cleanup(struct ath6kl *ar, u8 i) 77bdcd8170SKalle Valo { 78bdcd8170SKalle Valo struct ath6kl_sta *sta = &ar->sta_list[i]; 79bdcd8170SKalle Valo 80bdcd8170SKalle Valo /* empty the queued pkts in the PS queue if any */ 81bdcd8170SKalle Valo spin_lock_bh(&sta->psq_lock); 82bdcd8170SKalle Valo skb_queue_purge(&sta->psq); 83bdcd8170SKalle Valo spin_unlock_bh(&sta->psq_lock); 84bdcd8170SKalle Valo 85bdcd8170SKalle Valo memset(&ar->ap_stats.sta[sta->aid - 1], 0, 86bdcd8170SKalle Valo sizeof(struct wmi_per_sta_stat)); 87bdcd8170SKalle Valo memset(sta->mac, 0, ETH_ALEN); 88bdcd8170SKalle Valo memset(sta->wpa_ie, 0, ATH6KL_MAX_IE); 89bdcd8170SKalle Valo sta->aid = 0; 90bdcd8170SKalle Valo sta->sta_flags = 0; 91bdcd8170SKalle Valo 92bdcd8170SKalle Valo ar->sta_list_index = ar->sta_list_index & ~(1 << i); 93bdcd8170SKalle Valo 94bdcd8170SKalle Valo } 95bdcd8170SKalle Valo 96bdcd8170SKalle Valo static u8 ath6kl_remove_sta(struct ath6kl *ar, u8 *mac, u16 reason) 97bdcd8170SKalle Valo { 98bdcd8170SKalle Valo u8 i, removed = 0; 99bdcd8170SKalle Valo 100bdcd8170SKalle Valo if (is_zero_ether_addr(mac)) 101bdcd8170SKalle Valo return removed; 102bdcd8170SKalle Valo 103bdcd8170SKalle Valo if (is_broadcast_ether_addr(mac)) { 104bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, "deleting all station\n"); 105bdcd8170SKalle Valo 106bdcd8170SKalle Valo for (i = 0; i < AP_MAX_NUM_STA; i++) { 107bdcd8170SKalle Valo if (!is_zero_ether_addr(ar->sta_list[i].mac)) { 108bdcd8170SKalle Valo ath6kl_sta_cleanup(ar, i); 109bdcd8170SKalle Valo removed = 1; 110bdcd8170SKalle Valo } 111bdcd8170SKalle Valo } 112bdcd8170SKalle Valo } else { 113bdcd8170SKalle Valo for (i = 0; i < AP_MAX_NUM_STA; i++) { 114bdcd8170SKalle Valo if (memcmp(ar->sta_list[i].mac, mac, ETH_ALEN) == 0) { 115bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, 116bdcd8170SKalle Valo "deleting station %pM aid=%d reason=%d\n", 117bdcd8170SKalle Valo mac, ar->sta_list[i].aid, reason); 118bdcd8170SKalle Valo ath6kl_sta_cleanup(ar, i); 119bdcd8170SKalle Valo removed = 1; 120bdcd8170SKalle Valo break; 121bdcd8170SKalle Valo } 122bdcd8170SKalle Valo } 123bdcd8170SKalle Valo } 124bdcd8170SKalle Valo 125bdcd8170SKalle Valo return removed; 126bdcd8170SKalle Valo } 127bdcd8170SKalle Valo 128bdcd8170SKalle Valo enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac) 129bdcd8170SKalle Valo { 130bdcd8170SKalle Valo struct ath6kl *ar = devt; 131bdcd8170SKalle Valo return ar->ac2ep_map[ac]; 132bdcd8170SKalle Valo } 133bdcd8170SKalle Valo 134bdcd8170SKalle Valo struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar) 135bdcd8170SKalle Valo { 136bdcd8170SKalle Valo struct ath6kl_cookie *cookie; 137bdcd8170SKalle Valo 138bdcd8170SKalle Valo cookie = ar->cookie_list; 139bdcd8170SKalle Valo if (cookie != NULL) { 140bdcd8170SKalle Valo ar->cookie_list = cookie->arc_list_next; 141bdcd8170SKalle Valo ar->cookie_count--; 142bdcd8170SKalle Valo } 143bdcd8170SKalle Valo 144bdcd8170SKalle Valo return cookie; 145bdcd8170SKalle Valo } 146bdcd8170SKalle Valo 147bdcd8170SKalle Valo void ath6kl_cookie_init(struct ath6kl *ar) 148bdcd8170SKalle Valo { 149bdcd8170SKalle Valo u32 i; 150bdcd8170SKalle Valo 151bdcd8170SKalle Valo ar->cookie_list = NULL; 152bdcd8170SKalle Valo ar->cookie_count = 0; 153bdcd8170SKalle Valo 154bdcd8170SKalle Valo memset(ar->cookie_mem, 0, sizeof(ar->cookie_mem)); 155bdcd8170SKalle Valo 156bdcd8170SKalle Valo for (i = 0; i < MAX_COOKIE_NUM; i++) 157bdcd8170SKalle Valo ath6kl_free_cookie(ar, &ar->cookie_mem[i]); 158bdcd8170SKalle Valo } 159bdcd8170SKalle Valo 160bdcd8170SKalle Valo void ath6kl_cookie_cleanup(struct ath6kl *ar) 161bdcd8170SKalle Valo { 162bdcd8170SKalle Valo ar->cookie_list = NULL; 163bdcd8170SKalle Valo ar->cookie_count = 0; 164bdcd8170SKalle Valo } 165bdcd8170SKalle Valo 166bdcd8170SKalle Valo void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie) 167bdcd8170SKalle Valo { 168bdcd8170SKalle Valo /* Insert first */ 169bdcd8170SKalle Valo 170bdcd8170SKalle Valo if (!ar || !cookie) 171bdcd8170SKalle Valo return; 172bdcd8170SKalle Valo 173bdcd8170SKalle Valo cookie->arc_list_next = ar->cookie_list; 174bdcd8170SKalle Valo ar->cookie_list = cookie; 175bdcd8170SKalle Valo ar->cookie_count++; 176bdcd8170SKalle Valo } 177bdcd8170SKalle Valo 178bdcd8170SKalle Valo /* set the window address register (using 4-byte register access ). */ 179bdcd8170SKalle Valo static int ath6kl_set_addrwin_reg(struct ath6kl *ar, u32 reg_addr, u32 addr) 180bdcd8170SKalle Valo { 181bdcd8170SKalle Valo int status; 182bdcd8170SKalle Valo s32 i; 183b142b914SVasanthakumar Thiagarajan __le32 addr_val; 184bdcd8170SKalle Valo 185bdcd8170SKalle Valo /* 186bdcd8170SKalle Valo * Write bytes 1,2,3 of the register to set the upper address bytes, 187bdcd8170SKalle Valo * the LSB is written last to initiate the access cycle 188bdcd8170SKalle Valo */ 189bdcd8170SKalle Valo 190bdcd8170SKalle Valo for (i = 1; i <= 3; i++) { 191bdcd8170SKalle Valo /* 192bdcd8170SKalle Valo * Fill the buffer with the address byte value we want to 193b142b914SVasanthakumar Thiagarajan * hit 4 times. No need to worry about endianness as the 194b142b914SVasanthakumar Thiagarajan * same byte is copied to all four bytes of addr_val at 195b142b914SVasanthakumar Thiagarajan * any time. 196bdcd8170SKalle Valo */ 197b142b914SVasanthakumar Thiagarajan memset((u8 *)&addr_val, ((u8 *)&addr)[i], 4); 198bdcd8170SKalle Valo 199bdcd8170SKalle Valo /* 200bdcd8170SKalle Valo * Hit each byte of the register address with a 4-byte 201bdcd8170SKalle Valo * write operation to the same address, this is a harmless 202bdcd8170SKalle Valo * operation. 203bdcd8170SKalle Valo */ 204b142b914SVasanthakumar Thiagarajan status = hif_read_write_sync(ar, reg_addr + i, (u8 *)&addr_val, 205bdcd8170SKalle Valo 4, HIF_WR_SYNC_BYTE_FIX); 206bdcd8170SKalle Valo if (status) 207bdcd8170SKalle Valo break; 208bdcd8170SKalle Valo } 209bdcd8170SKalle Valo 210bdcd8170SKalle Valo if (status) { 211bdcd8170SKalle Valo ath6kl_err("failed to write initial bytes of 0x%x to window reg: 0x%X\n", 212bdcd8170SKalle Valo addr, reg_addr); 213bdcd8170SKalle Valo return status; 214bdcd8170SKalle Valo } 215bdcd8170SKalle Valo 216bdcd8170SKalle Valo /* 217bdcd8170SKalle Valo * Write the address register again, this time write the whole 218bdcd8170SKalle Valo * 4-byte value. The effect here is that the LSB write causes the 219bdcd8170SKalle Valo * cycle to start, the extra 3 byte write to bytes 1,2,3 has no 220bdcd8170SKalle Valo * effect since we are writing the same values again 221bdcd8170SKalle Valo */ 222b142b914SVasanthakumar Thiagarajan addr_val = cpu_to_le32(addr); 223b142b914SVasanthakumar Thiagarajan status = hif_read_write_sync(ar, reg_addr, 224b142b914SVasanthakumar Thiagarajan (u8 *)&(addr_val), 225bdcd8170SKalle Valo 4, HIF_WR_SYNC_BYTE_INC); 226bdcd8170SKalle Valo 227bdcd8170SKalle Valo if (status) { 228bdcd8170SKalle Valo ath6kl_err("failed to write 0x%x to window reg: 0x%X\n", 229bdcd8170SKalle Valo addr, reg_addr); 230bdcd8170SKalle Valo return status; 231bdcd8170SKalle Valo } 232bdcd8170SKalle Valo 233bdcd8170SKalle Valo return 0; 234bdcd8170SKalle Valo } 235bdcd8170SKalle Valo 236bdcd8170SKalle Valo /* 237addb44beSKalle Valo * Read from the hardware through its diagnostic window. No cooperation 238addb44beSKalle Valo * from the firmware is required for this. 239bdcd8170SKalle Valo */ 240addb44beSKalle Valo int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value) 241bdcd8170SKalle Valo { 242addb44beSKalle Valo int ret; 243bdcd8170SKalle Valo 244bdcd8170SKalle Valo /* set window register to start read cycle */ 245addb44beSKalle Valo ret = ath6kl_set_addrwin_reg(ar, WINDOW_READ_ADDR_ADDRESS, address); 246addb44beSKalle Valo if (ret) 247addb44beSKalle Valo return ret; 248bdcd8170SKalle Valo 249bdcd8170SKalle Valo /* read the data */ 250addb44beSKalle Valo ret = hif_read_write_sync(ar, WINDOW_DATA_ADDRESS, (u8 *) value, 251addb44beSKalle Valo sizeof(*value), HIF_RD_SYNC_BYTE_INC); 252addb44beSKalle Valo if (ret) { 253addb44beSKalle Valo ath6kl_warn("failed to read32 through diagnose window: %d\n", 254addb44beSKalle Valo ret); 255addb44beSKalle Valo return ret; 256bdcd8170SKalle Valo } 257bdcd8170SKalle Valo 258addb44beSKalle Valo return 0; 259bdcd8170SKalle Valo } 260bdcd8170SKalle Valo 261bdcd8170SKalle Valo /* 262bdcd8170SKalle Valo * Write to the ATH6KL through its diagnostic window. No cooperation from 263bdcd8170SKalle Valo * the Target is required for this. 264bdcd8170SKalle Valo */ 265f9ea0753SVasanthakumar Thiagarajan int ath6kl_diag_write32(struct ath6kl *ar, u32 address, __le32 value) 266bdcd8170SKalle Valo { 267addb44beSKalle Valo int ret; 268bdcd8170SKalle Valo 269bdcd8170SKalle Valo /* set write data */ 270addb44beSKalle Valo ret = hif_read_write_sync(ar, WINDOW_DATA_ADDRESS, (u8 *) &value, 271addb44beSKalle Valo sizeof(value), HIF_WR_SYNC_BYTE_INC); 272addb44beSKalle Valo if (ret) { 273addb44beSKalle Valo ath6kl_err("failed to write 0x%x during diagnose window to 0x%d\n", 274addb44beSKalle Valo address, value); 275addb44beSKalle Valo return ret; 276bdcd8170SKalle Valo } 277bdcd8170SKalle Valo 278bdcd8170SKalle Valo /* set window register, which starts the write cycle */ 279bdcd8170SKalle Valo return ath6kl_set_addrwin_reg(ar, WINDOW_WRITE_ADDR_ADDRESS, 280addb44beSKalle Valo address); 281bdcd8170SKalle Valo } 282bdcd8170SKalle Valo 283addb44beSKalle Valo int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length) 284bdcd8170SKalle Valo { 285addb44beSKalle Valo u32 count, *buf = data; 286addb44beSKalle Valo int ret; 287bdcd8170SKalle Valo 288addb44beSKalle Valo if (WARN_ON(length % 4)) 289addb44beSKalle Valo return -EINVAL; 290addb44beSKalle Valo 291addb44beSKalle Valo for (count = 0; count < length / 4; count++, address += 4) { 292addb44beSKalle Valo ret = ath6kl_diag_read32(ar, address, &buf[count]); 293addb44beSKalle Valo if (ret) 294addb44beSKalle Valo return ret; 295bdcd8170SKalle Valo } 296bdcd8170SKalle Valo 297addb44beSKalle Valo return 0; 298addb44beSKalle Valo } 299addb44beSKalle Valo 300addb44beSKalle Valo int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length) 301addb44beSKalle Valo { 302f9ea0753SVasanthakumar Thiagarajan u32 count; 303f9ea0753SVasanthakumar Thiagarajan __le32 *buf = data; 304addb44beSKalle Valo int ret; 305addb44beSKalle Valo 306addb44beSKalle Valo if (WARN_ON(length % 4)) 307addb44beSKalle Valo return -EINVAL; 308addb44beSKalle Valo 309addb44beSKalle Valo for (count = 0; count < length / 4; count++, address += 4) { 310addb44beSKalle Valo ret = ath6kl_diag_write32(ar, address, buf[count]); 311addb44beSKalle Valo if (ret) 312addb44beSKalle Valo return ret; 313addb44beSKalle Valo } 314addb44beSKalle Valo 315addb44beSKalle Valo return 0; 316bdcd8170SKalle Valo } 317bdcd8170SKalle Valo 318bc07ddb2SKalle Valo int ath6kl_read_fwlogs(struct ath6kl *ar) 319bc07ddb2SKalle Valo { 320bc07ddb2SKalle Valo struct ath6kl_dbglog_hdr debug_hdr; 321bc07ddb2SKalle Valo struct ath6kl_dbglog_buf debug_buf; 322bc07ddb2SKalle Valo u32 address, length, dropped, firstbuf, debug_hdr_addr; 323bc07ddb2SKalle Valo int ret = 0, loop; 324bc07ddb2SKalle Valo u8 *buf; 325bc07ddb2SKalle Valo 326bc07ddb2SKalle Valo buf = kmalloc(ATH6KL_FWLOG_PAYLOAD_SIZE, GFP_KERNEL); 327bc07ddb2SKalle Valo if (!buf) 328bc07ddb2SKalle Valo return -ENOMEM; 329bc07ddb2SKalle Valo 330bc07ddb2SKalle Valo address = TARG_VTOP(ar->target_type, 331bc07ddb2SKalle Valo ath6kl_get_hi_item_addr(ar, 332bc07ddb2SKalle Valo HI_ITEM(hi_dbglog_hdr))); 333bc07ddb2SKalle Valo 334bc07ddb2SKalle Valo ret = ath6kl_diag_read32(ar, address, &debug_hdr_addr); 335bc07ddb2SKalle Valo if (ret) 336bc07ddb2SKalle Valo goto out; 337bc07ddb2SKalle Valo 338bc07ddb2SKalle Valo /* Get the contents of the ring buffer */ 339bc07ddb2SKalle Valo if (debug_hdr_addr == 0) { 340bc07ddb2SKalle Valo ath6kl_warn("Invalid address for debug_hdr_addr\n"); 341bc07ddb2SKalle Valo ret = -EINVAL; 342bc07ddb2SKalle Valo goto out; 343bc07ddb2SKalle Valo } 344bc07ddb2SKalle Valo 345bc07ddb2SKalle Valo address = TARG_VTOP(ar->target_type, debug_hdr_addr); 346bc07ddb2SKalle Valo ath6kl_diag_read(ar, address, &debug_hdr, sizeof(debug_hdr)); 347bc07ddb2SKalle Valo 348bc07ddb2SKalle Valo address = TARG_VTOP(ar->target_type, 349bc07ddb2SKalle Valo le32_to_cpu(debug_hdr.dbuf_addr)); 350bc07ddb2SKalle Valo firstbuf = address; 351bc07ddb2SKalle Valo dropped = le32_to_cpu(debug_hdr.dropped); 352bc07ddb2SKalle Valo ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf)); 353bc07ddb2SKalle Valo 354bc07ddb2SKalle Valo loop = 100; 355bc07ddb2SKalle Valo 356bc07ddb2SKalle Valo do { 357bc07ddb2SKalle Valo address = TARG_VTOP(ar->target_type, 358bc07ddb2SKalle Valo le32_to_cpu(debug_buf.buffer_addr)); 359bc07ddb2SKalle Valo length = le32_to_cpu(debug_buf.length); 360bc07ddb2SKalle Valo 361bc07ddb2SKalle Valo if (length != 0 && (le32_to_cpu(debug_buf.length) <= 362bc07ddb2SKalle Valo le32_to_cpu(debug_buf.bufsize))) { 363bc07ddb2SKalle Valo length = ALIGN(length, 4); 364bc07ddb2SKalle Valo 365bc07ddb2SKalle Valo ret = ath6kl_diag_read(ar, address, 366bc07ddb2SKalle Valo buf, length); 367bc07ddb2SKalle Valo if (ret) 368bc07ddb2SKalle Valo goto out; 369bc07ddb2SKalle Valo 370bc07ddb2SKalle Valo ath6kl_debug_fwlog_event(ar, buf, length); 371bc07ddb2SKalle Valo } 372bc07ddb2SKalle Valo 373bc07ddb2SKalle Valo address = TARG_VTOP(ar->target_type, 374bc07ddb2SKalle Valo le32_to_cpu(debug_buf.next)); 375bc07ddb2SKalle Valo ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf)); 376bc07ddb2SKalle Valo if (ret) 377bc07ddb2SKalle Valo goto out; 378bc07ddb2SKalle Valo 379bc07ddb2SKalle Valo loop--; 380bc07ddb2SKalle Valo 381bc07ddb2SKalle Valo if (WARN_ON(loop == 0)) { 382bc07ddb2SKalle Valo ret = -ETIMEDOUT; 383bc07ddb2SKalle Valo goto out; 384bc07ddb2SKalle Valo } 385bc07ddb2SKalle Valo } while (address != firstbuf); 386bc07ddb2SKalle Valo 387bc07ddb2SKalle Valo out: 388bc07ddb2SKalle Valo kfree(buf); 389bc07ddb2SKalle Valo 390bc07ddb2SKalle Valo return ret; 391bc07ddb2SKalle Valo } 392bc07ddb2SKalle Valo 39331024d99SKevin Fang /* FIXME: move to a better place, target.h? */ 39431024d99SKevin Fang #define AR6003_RESET_CONTROL_ADDRESS 0x00004000 39531024d99SKevin Fang #define AR6004_RESET_CONTROL_ADDRESS 0x00004000 39631024d99SKevin Fang 3976db8fa53SVasanthakumar Thiagarajan void ath6kl_reset_device(struct ath6kl *ar, u32 target_type, 398bdcd8170SKalle Valo bool wait_fot_compltn, bool cold_reset) 399bdcd8170SKalle Valo { 400bdcd8170SKalle Valo int status = 0; 401bdcd8170SKalle Valo u32 address; 402f9ea0753SVasanthakumar Thiagarajan __le32 data; 403bdcd8170SKalle Valo 40431024d99SKevin Fang if (target_type != TARGET_TYPE_AR6003 && 40531024d99SKevin Fang target_type != TARGET_TYPE_AR6004) 406bdcd8170SKalle Valo return; 407bdcd8170SKalle Valo 408f9ea0753SVasanthakumar Thiagarajan data = cold_reset ? cpu_to_le32(RESET_CONTROL_COLD_RST) : 409f9ea0753SVasanthakumar Thiagarajan cpu_to_le32(RESET_CONTROL_MBOX_RST); 410bdcd8170SKalle Valo 41131024d99SKevin Fang switch (target_type) { 41231024d99SKevin Fang case TARGET_TYPE_AR6003: 41331024d99SKevin Fang address = AR6003_RESET_CONTROL_ADDRESS; 41431024d99SKevin Fang break; 41531024d99SKevin Fang case TARGET_TYPE_AR6004: 41631024d99SKevin Fang address = AR6004_RESET_CONTROL_ADDRESS; 41731024d99SKevin Fang break; 41831024d99SKevin Fang default: 41931024d99SKevin Fang address = AR6003_RESET_CONTROL_ADDRESS; 42031024d99SKevin Fang break; 42131024d99SKevin Fang } 42231024d99SKevin Fang 423addb44beSKalle Valo status = ath6kl_diag_write32(ar, address, data); 424bdcd8170SKalle Valo 425bdcd8170SKalle Valo if (status) 426bdcd8170SKalle Valo ath6kl_err("failed to reset target\n"); 427bdcd8170SKalle Valo } 428bdcd8170SKalle Valo 429240d2799SVasanthakumar Thiagarajan static void ath6kl_install_static_wep_keys(struct ath6kl_vif *vif) 430bdcd8170SKalle Valo { 431bdcd8170SKalle Valo u8 index; 432bdcd8170SKalle Valo u8 keyusage; 433bdcd8170SKalle Valo 434bdcd8170SKalle Valo for (index = WMI_MIN_KEY_INDEX; index <= WMI_MAX_KEY_INDEX; index++) { 4356f2a73f9SVasanthakumar Thiagarajan if (vif->wep_key_list[index].key_len) { 436bdcd8170SKalle Valo keyusage = GROUP_USAGE; 4373450334fSVasanthakumar Thiagarajan if (index == vif->def_txkey_index) 438bdcd8170SKalle Valo keyusage |= TX_USAGE; 439bdcd8170SKalle Valo 440240d2799SVasanthakumar Thiagarajan ath6kl_wmi_addkey_cmd(vif->ar->wmi, vif->fw_vif_idx, 441bdcd8170SKalle Valo index, 442bdcd8170SKalle Valo WEP_CRYPT, 443bdcd8170SKalle Valo keyusage, 4446f2a73f9SVasanthakumar Thiagarajan vif->wep_key_list[index].key_len, 445bdcd8170SKalle Valo NULL, 4466f2a73f9SVasanthakumar Thiagarajan vif->wep_key_list[index].key, 447bdcd8170SKalle Valo KEY_OP_INIT_VAL, NULL, 448bdcd8170SKalle Valo NO_SYNC_WMIFLAG); 449bdcd8170SKalle Valo } 450bdcd8170SKalle Valo } 451bdcd8170SKalle Valo } 452bdcd8170SKalle Valo 453240d2799SVasanthakumar Thiagarajan void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel) 454bdcd8170SKalle Valo { 455240d2799SVasanthakumar Thiagarajan struct ath6kl *ar = vif->ar; 456bdcd8170SKalle Valo struct ath6kl_req_key *ik; 4579a5b1318SJouni Malinen int res; 4589a5b1318SJouni Malinen u8 key_rsc[ATH6KL_KEY_SEQ_LEN]; 459bdcd8170SKalle Valo 460bdcd8170SKalle Valo ik = &ar->ap_mode_bkey; 461bdcd8170SKalle Valo 462572e27c0SJouni Malinen ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "AP mode started on %u MHz\n", channel); 4639a5b1318SJouni Malinen 4643450334fSVasanthakumar Thiagarajan switch (vif->auth_mode) { 465bdcd8170SKalle Valo case NONE_AUTH: 4663450334fSVasanthakumar Thiagarajan if (vif->prwise_crypto == WEP_CRYPT) 467240d2799SVasanthakumar Thiagarajan ath6kl_install_static_wep_keys(vif); 468bdcd8170SKalle Valo break; 469bdcd8170SKalle Valo case WPA_PSK_AUTH: 470bdcd8170SKalle Valo case WPA2_PSK_AUTH: 471bdcd8170SKalle Valo case (WPA_PSK_AUTH | WPA2_PSK_AUTH): 4729a5b1318SJouni Malinen if (!ik->valid) 473bdcd8170SKalle Valo break; 4749a5b1318SJouni Malinen 4759a5b1318SJouni Malinen ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed addkey for " 4769a5b1318SJouni Malinen "the initial group key for AP mode\n"); 4779a5b1318SJouni Malinen memset(key_rsc, 0, sizeof(key_rsc)); 4789a5b1318SJouni Malinen res = ath6kl_wmi_addkey_cmd( 479334234b5SVasanthakumar Thiagarajan ar->wmi, vif->fw_vif_idx, ik->key_index, ik->key_type, 4809a5b1318SJouni Malinen GROUP_USAGE, ik->key_len, key_rsc, ik->key, 4819a5b1318SJouni Malinen KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG); 4829a5b1318SJouni Malinen if (res) { 4839a5b1318SJouni Malinen ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed " 4849a5b1318SJouni Malinen "addkey failed: %d\n", res); 485bdcd8170SKalle Valo } 486bdcd8170SKalle Valo break; 487bdcd8170SKalle Valo } 4889a5b1318SJouni Malinen 489240d2799SVasanthakumar Thiagarajan ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, NONE_BSS_FILTER, 0); 49059c98449SVasanthakumar Thiagarajan set_bit(CONNECTED, &vif->flags); 491240d2799SVasanthakumar Thiagarajan netif_carrier_on(vif->ndev); 492bdcd8170SKalle Valo } 493bdcd8170SKalle Valo 494240d2799SVasanthakumar Thiagarajan void ath6kl_connect_ap_mode_sta(struct ath6kl_vif *vif, u16 aid, u8 *mac_addr, 495572e27c0SJouni Malinen u8 keymgmt, u8 ucipher, u8 auth, 496572e27c0SJouni Malinen u8 assoc_req_len, u8 *assoc_info) 497572e27c0SJouni Malinen { 498240d2799SVasanthakumar Thiagarajan struct ath6kl *ar = vif->ar; 499572e27c0SJouni Malinen u8 *ies = NULL, *wpa_ie = NULL, *pos; 500572e27c0SJouni Malinen size_t ies_len = 0; 501572e27c0SJouni Malinen struct station_info sinfo; 502572e27c0SJouni Malinen 503572e27c0SJouni Malinen ath6kl_dbg(ATH6KL_DBG_TRC, "new station %pM aid=%d\n", mac_addr, aid); 504bdcd8170SKalle Valo 5053c774bbaSJouni Malinen if (assoc_req_len > sizeof(struct ieee80211_hdr_3addr)) { 5063c774bbaSJouni Malinen struct ieee80211_mgmt *mgmt = 5073c774bbaSJouni Malinen (struct ieee80211_mgmt *) assoc_info; 5083c774bbaSJouni Malinen if (ieee80211_is_assoc_req(mgmt->frame_control) && 5093c774bbaSJouni Malinen assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) + 5103c774bbaSJouni Malinen sizeof(mgmt->u.assoc_req)) { 5113c774bbaSJouni Malinen ies = mgmt->u.assoc_req.variable; 5123c774bbaSJouni Malinen ies_len = assoc_info + assoc_req_len - ies; 5133c774bbaSJouni Malinen } else if (ieee80211_is_reassoc_req(mgmt->frame_control) && 5143c774bbaSJouni Malinen assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) 5153c774bbaSJouni Malinen + sizeof(mgmt->u.reassoc_req)) { 5163c774bbaSJouni Malinen ies = mgmt->u.reassoc_req.variable; 5173c774bbaSJouni Malinen ies_len = assoc_info + assoc_req_len - ies; 5183c774bbaSJouni Malinen } 5193c774bbaSJouni Malinen } 5203c774bbaSJouni Malinen 5213c774bbaSJouni Malinen pos = ies; 5223c774bbaSJouni Malinen while (pos && pos + 1 < ies + ies_len) { 5233c774bbaSJouni Malinen if (pos + 2 + pos[1] > ies + ies_len) 5243c774bbaSJouni Malinen break; 5253c774bbaSJouni Malinen if (pos[0] == WLAN_EID_RSN) 5263c774bbaSJouni Malinen wpa_ie = pos; /* RSN IE */ 5273c774bbaSJouni Malinen else if (pos[0] == WLAN_EID_VENDOR_SPECIFIC && 5283c774bbaSJouni Malinen pos[1] >= 4 && 5293c774bbaSJouni Malinen pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2) { 5303c774bbaSJouni Malinen if (pos[5] == 0x01) 5313c774bbaSJouni Malinen wpa_ie = pos; /* WPA IE */ 5323c774bbaSJouni Malinen else if (pos[5] == 0x04) { 5333c774bbaSJouni Malinen wpa_ie = pos; /* WPS IE */ 5343c774bbaSJouni Malinen break; /* overrides WPA/RSN IE */ 5353c774bbaSJouni Malinen } 5363c774bbaSJouni Malinen } 5373c774bbaSJouni Malinen pos += 2 + pos[1]; 5383c774bbaSJouni Malinen } 5393c774bbaSJouni Malinen 540572e27c0SJouni Malinen ath6kl_add_new_sta(ar, mac_addr, aid, wpa_ie, 5413c774bbaSJouni Malinen wpa_ie ? 2 + wpa_ie[1] : 0, 542572e27c0SJouni Malinen keymgmt, ucipher, auth); 543bdcd8170SKalle Valo 544bdcd8170SKalle Valo /* send event to application */ 545bdcd8170SKalle Valo memset(&sinfo, 0, sizeof(sinfo)); 546bdcd8170SKalle Valo 547bdcd8170SKalle Valo /* TODO: sinfo.generation */ 5483c774bbaSJouni Malinen 5493c774bbaSJouni Malinen sinfo.assoc_req_ies = ies; 5503c774bbaSJouni Malinen sinfo.assoc_req_ies_len = ies_len; 5513c774bbaSJouni Malinen sinfo.filled |= STATION_INFO_ASSOC_REQ_IES; 5523c774bbaSJouni Malinen 553240d2799SVasanthakumar Thiagarajan cfg80211_new_sta(vif->ndev, mac_addr, &sinfo, GFP_KERNEL); 554bdcd8170SKalle Valo 555240d2799SVasanthakumar Thiagarajan netif_wake_queue(vif->ndev); 556bdcd8170SKalle Valo } 557bdcd8170SKalle Valo 558bdcd8170SKalle Valo /* Functions for Tx credit handling */ 559bdcd8170SKalle Valo void ath6k_credit_init(struct htc_credit_state_info *cred_info, 560bdcd8170SKalle Valo struct list_head *ep_list, 561bdcd8170SKalle Valo int tot_credits) 562bdcd8170SKalle Valo { 563bdcd8170SKalle Valo struct htc_endpoint_credit_dist *cur_ep_dist; 564bdcd8170SKalle Valo int count; 565bdcd8170SKalle Valo 566bdcd8170SKalle Valo cred_info->cur_free_credits = tot_credits; 567bdcd8170SKalle Valo cred_info->total_avail_credits = tot_credits; 568bdcd8170SKalle Valo 569bdcd8170SKalle Valo list_for_each_entry(cur_ep_dist, ep_list, list) { 570bdcd8170SKalle Valo if (cur_ep_dist->endpoint == ENDPOINT_0) 571bdcd8170SKalle Valo continue; 572bdcd8170SKalle Valo 573bdcd8170SKalle Valo cur_ep_dist->cred_min = cur_ep_dist->cred_per_msg; 574bdcd8170SKalle Valo 575bdcd8170SKalle Valo if (tot_credits > 4) 576bdcd8170SKalle Valo if ((cur_ep_dist->svc_id == WMI_DATA_BK_SVC) || 577bdcd8170SKalle Valo (cur_ep_dist->svc_id == WMI_DATA_BE_SVC)) { 578bdcd8170SKalle Valo ath6kl_deposit_credit_to_ep(cred_info, 579bdcd8170SKalle Valo cur_ep_dist, 580bdcd8170SKalle Valo cur_ep_dist->cred_min); 581bdcd8170SKalle Valo cur_ep_dist->dist_flags |= HTC_EP_ACTIVE; 582bdcd8170SKalle Valo } 583bdcd8170SKalle Valo 584bdcd8170SKalle Valo if (cur_ep_dist->svc_id == WMI_CONTROL_SVC) { 585bdcd8170SKalle Valo ath6kl_deposit_credit_to_ep(cred_info, cur_ep_dist, 586bdcd8170SKalle Valo cur_ep_dist->cred_min); 587bdcd8170SKalle Valo /* 588bdcd8170SKalle Valo * Control service is always marked active, it 589bdcd8170SKalle Valo * never goes inactive EVER. 590bdcd8170SKalle Valo */ 591bdcd8170SKalle Valo cur_ep_dist->dist_flags |= HTC_EP_ACTIVE; 592bdcd8170SKalle Valo } else if (cur_ep_dist->svc_id == WMI_DATA_BK_SVC) 593bdcd8170SKalle Valo /* this is the lowest priority data endpoint */ 594bdcd8170SKalle Valo cred_info->lowestpri_ep_dist = cur_ep_dist->list; 595bdcd8170SKalle Valo 596bdcd8170SKalle Valo /* 597bdcd8170SKalle Valo * Streams have to be created (explicit | implicit) for all 598bdcd8170SKalle Valo * kinds of traffic. BE endpoints are also inactive in the 599bdcd8170SKalle Valo * beginning. When BE traffic starts it creates implicit 600bdcd8170SKalle Valo * streams that redistributes credits. 601bdcd8170SKalle Valo * 602bdcd8170SKalle Valo * Note: all other endpoints have minimums set but are 603bdcd8170SKalle Valo * initially given NO credits. credits will be distributed 604bdcd8170SKalle Valo * as traffic activity demands 605bdcd8170SKalle Valo */ 606bdcd8170SKalle Valo } 607bdcd8170SKalle Valo 608bdcd8170SKalle Valo WARN_ON(cred_info->cur_free_credits <= 0); 609bdcd8170SKalle Valo 610bdcd8170SKalle Valo list_for_each_entry(cur_ep_dist, ep_list, list) { 611bdcd8170SKalle Valo if (cur_ep_dist->endpoint == ENDPOINT_0) 612bdcd8170SKalle Valo continue; 613bdcd8170SKalle Valo 614bdcd8170SKalle Valo if (cur_ep_dist->svc_id == WMI_CONTROL_SVC) 615bdcd8170SKalle Valo cur_ep_dist->cred_norm = cur_ep_dist->cred_per_msg; 616bdcd8170SKalle Valo else { 617bdcd8170SKalle Valo /* 618bdcd8170SKalle Valo * For the remaining data endpoints, we assume that 619bdcd8170SKalle Valo * each cred_per_msg are the same. We use a simple 620bdcd8170SKalle Valo * calculation here, we take the remaining credits 621bdcd8170SKalle Valo * and determine how many max messages this can 622bdcd8170SKalle Valo * cover and then set each endpoint's normal value 623bdcd8170SKalle Valo * equal to 3/4 this amount. 624bdcd8170SKalle Valo */ 625bdcd8170SKalle Valo count = (cred_info->cur_free_credits / 626bdcd8170SKalle Valo cur_ep_dist->cred_per_msg) 627bdcd8170SKalle Valo * cur_ep_dist->cred_per_msg; 628bdcd8170SKalle Valo count = (count * 3) >> 2; 629bdcd8170SKalle Valo count = max(count, cur_ep_dist->cred_per_msg); 630bdcd8170SKalle Valo cur_ep_dist->cred_norm = count; 631bdcd8170SKalle Valo 632bdcd8170SKalle Valo } 633bdcd8170SKalle Valo } 634bdcd8170SKalle Valo } 635bdcd8170SKalle Valo 636bdcd8170SKalle Valo /* initialize and setup credit distribution */ 637bdcd8170SKalle Valo int ath6k_setup_credit_dist(void *htc_handle, 638bdcd8170SKalle Valo struct htc_credit_state_info *cred_info) 639bdcd8170SKalle Valo { 640bdcd8170SKalle Valo u16 servicepriority[5]; 641bdcd8170SKalle Valo 642bdcd8170SKalle Valo memset(cred_info, 0, sizeof(struct htc_credit_state_info)); 643bdcd8170SKalle Valo 644bdcd8170SKalle Valo servicepriority[0] = WMI_CONTROL_SVC; /* highest */ 645bdcd8170SKalle Valo servicepriority[1] = WMI_DATA_VO_SVC; 646bdcd8170SKalle Valo servicepriority[2] = WMI_DATA_VI_SVC; 647bdcd8170SKalle Valo servicepriority[3] = WMI_DATA_BE_SVC; 648bdcd8170SKalle Valo servicepriority[4] = WMI_DATA_BK_SVC; /* lowest */ 649bdcd8170SKalle Valo 650bdcd8170SKalle Valo /* set priority list */ 651ad226ec2SKalle Valo ath6kl_htc_set_credit_dist(htc_handle, cred_info, servicepriority, 5); 652bdcd8170SKalle Valo 653bdcd8170SKalle Valo return 0; 654bdcd8170SKalle Valo } 655bdcd8170SKalle Valo 656bdcd8170SKalle Valo /* reduce an ep's credits back to a set limit */ 657bdcd8170SKalle Valo static void ath6k_reduce_credits(struct htc_credit_state_info *cred_info, 658bdcd8170SKalle Valo struct htc_endpoint_credit_dist *ep_dist, 659bdcd8170SKalle Valo int limit) 660bdcd8170SKalle Valo { 661bdcd8170SKalle Valo int credits; 662bdcd8170SKalle Valo 663bdcd8170SKalle Valo ep_dist->cred_assngd = limit; 664bdcd8170SKalle Valo 665bdcd8170SKalle Valo if (ep_dist->credits <= limit) 666bdcd8170SKalle Valo return; 667bdcd8170SKalle Valo 668bdcd8170SKalle Valo credits = ep_dist->credits - limit; 669bdcd8170SKalle Valo ep_dist->credits -= credits; 670bdcd8170SKalle Valo cred_info->cur_free_credits += credits; 671bdcd8170SKalle Valo } 672bdcd8170SKalle Valo 673bdcd8170SKalle Valo static void ath6k_credit_update(struct htc_credit_state_info *cred_info, 674bdcd8170SKalle Valo struct list_head *epdist_list) 675bdcd8170SKalle Valo { 676bdcd8170SKalle Valo struct htc_endpoint_credit_dist *cur_dist_list; 677bdcd8170SKalle Valo 678bdcd8170SKalle Valo list_for_each_entry(cur_dist_list, epdist_list, list) { 679bdcd8170SKalle Valo if (cur_dist_list->endpoint == ENDPOINT_0) 680bdcd8170SKalle Valo continue; 681bdcd8170SKalle Valo 682bdcd8170SKalle Valo if (cur_dist_list->cred_to_dist > 0) { 683bdcd8170SKalle Valo cur_dist_list->credits += 684bdcd8170SKalle Valo cur_dist_list->cred_to_dist; 685bdcd8170SKalle Valo cur_dist_list->cred_to_dist = 0; 686bdcd8170SKalle Valo if (cur_dist_list->credits > 687bdcd8170SKalle Valo cur_dist_list->cred_assngd) 688bdcd8170SKalle Valo ath6k_reduce_credits(cred_info, 689bdcd8170SKalle Valo cur_dist_list, 690bdcd8170SKalle Valo cur_dist_list->cred_assngd); 691bdcd8170SKalle Valo 692bdcd8170SKalle Valo if (cur_dist_list->credits > 693bdcd8170SKalle Valo cur_dist_list->cred_norm) 694bdcd8170SKalle Valo ath6k_reduce_credits(cred_info, cur_dist_list, 695bdcd8170SKalle Valo cur_dist_list->cred_norm); 696bdcd8170SKalle Valo 697bdcd8170SKalle Valo if (!(cur_dist_list->dist_flags & HTC_EP_ACTIVE)) { 698bdcd8170SKalle Valo if (cur_dist_list->txq_depth == 0) 699bdcd8170SKalle Valo ath6k_reduce_credits(cred_info, 700bdcd8170SKalle Valo cur_dist_list, 0); 701bdcd8170SKalle Valo } 702bdcd8170SKalle Valo } 703bdcd8170SKalle Valo } 704bdcd8170SKalle Valo } 705bdcd8170SKalle Valo 706bdcd8170SKalle Valo /* 707bdcd8170SKalle Valo * HTC has an endpoint that needs credits, ep_dist is the endpoint in 708bdcd8170SKalle Valo * question. 709bdcd8170SKalle Valo */ 710bdcd8170SKalle Valo void ath6k_seek_credits(struct htc_credit_state_info *cred_info, 711bdcd8170SKalle Valo struct htc_endpoint_credit_dist *ep_dist) 712bdcd8170SKalle Valo { 713bdcd8170SKalle Valo struct htc_endpoint_credit_dist *curdist_list; 714bdcd8170SKalle Valo int credits = 0; 715bdcd8170SKalle Valo int need; 716bdcd8170SKalle Valo 717bdcd8170SKalle Valo if (ep_dist->svc_id == WMI_CONTROL_SVC) 718bdcd8170SKalle Valo goto out; 719bdcd8170SKalle Valo 720bdcd8170SKalle Valo if ((ep_dist->svc_id == WMI_DATA_VI_SVC) || 721bdcd8170SKalle Valo (ep_dist->svc_id == WMI_DATA_VO_SVC)) 722bdcd8170SKalle Valo if ((ep_dist->cred_assngd >= ep_dist->cred_norm)) 723bdcd8170SKalle Valo goto out; 724bdcd8170SKalle Valo 725bdcd8170SKalle Valo /* 726bdcd8170SKalle Valo * For all other services, we follow a simple algorithm of: 727bdcd8170SKalle Valo * 728bdcd8170SKalle Valo * 1. checking the free pool for credits 729bdcd8170SKalle Valo * 2. checking lower priority endpoints for credits to take 730bdcd8170SKalle Valo */ 731bdcd8170SKalle Valo 732bdcd8170SKalle Valo credits = min(cred_info->cur_free_credits, ep_dist->seek_cred); 733bdcd8170SKalle Valo 734bdcd8170SKalle Valo if (credits >= ep_dist->seek_cred) 735bdcd8170SKalle Valo goto out; 736bdcd8170SKalle Valo 737bdcd8170SKalle Valo /* 738bdcd8170SKalle Valo * We don't have enough in the free pool, try taking away from 739bdcd8170SKalle Valo * lower priority services The rule for taking away credits: 740bdcd8170SKalle Valo * 741bdcd8170SKalle Valo * 1. Only take from lower priority endpoints 742bdcd8170SKalle Valo * 2. Only take what is allocated above the minimum (never 743bdcd8170SKalle Valo * starve an endpoint completely) 744bdcd8170SKalle Valo * 3. Only take what you need. 745bdcd8170SKalle Valo */ 746bdcd8170SKalle Valo 747bdcd8170SKalle Valo list_for_each_entry_reverse(curdist_list, 748bdcd8170SKalle Valo &cred_info->lowestpri_ep_dist, 749bdcd8170SKalle Valo list) { 750bdcd8170SKalle Valo if (curdist_list == ep_dist) 751bdcd8170SKalle Valo break; 752bdcd8170SKalle Valo 753bdcd8170SKalle Valo need = ep_dist->seek_cred - cred_info->cur_free_credits; 754bdcd8170SKalle Valo 755bdcd8170SKalle Valo if ((curdist_list->cred_assngd - need) >= 756bdcd8170SKalle Valo curdist_list->cred_min) { 757bdcd8170SKalle Valo /* 758bdcd8170SKalle Valo * The current one has been allocated more than 759bdcd8170SKalle Valo * it's minimum and it has enough credits assigned 760bdcd8170SKalle Valo * above it's minimum to fulfill our need try to 761bdcd8170SKalle Valo * take away just enough to fulfill our need. 762bdcd8170SKalle Valo */ 763bdcd8170SKalle Valo ath6k_reduce_credits(cred_info, curdist_list, 764bdcd8170SKalle Valo curdist_list->cred_assngd - need); 765bdcd8170SKalle Valo 766bdcd8170SKalle Valo if (cred_info->cur_free_credits >= 767bdcd8170SKalle Valo ep_dist->seek_cred) 768bdcd8170SKalle Valo break; 769bdcd8170SKalle Valo } 770bdcd8170SKalle Valo 771bdcd8170SKalle Valo if (curdist_list->endpoint == ENDPOINT_0) 772bdcd8170SKalle Valo break; 773bdcd8170SKalle Valo } 774bdcd8170SKalle Valo 775bdcd8170SKalle Valo credits = min(cred_info->cur_free_credits, ep_dist->seek_cred); 776bdcd8170SKalle Valo 777bdcd8170SKalle Valo out: 778bdcd8170SKalle Valo /* did we find some credits? */ 779bdcd8170SKalle Valo if (credits) 780bdcd8170SKalle Valo ath6kl_deposit_credit_to_ep(cred_info, ep_dist, credits); 781bdcd8170SKalle Valo 782bdcd8170SKalle Valo ep_dist->seek_cred = 0; 783bdcd8170SKalle Valo } 784bdcd8170SKalle Valo 785bdcd8170SKalle Valo /* redistribute credits based on activity change */ 786bdcd8170SKalle Valo static void ath6k_redistribute_credits(struct htc_credit_state_info *info, 787bdcd8170SKalle Valo struct list_head *ep_dist_list) 788bdcd8170SKalle Valo { 789bdcd8170SKalle Valo struct htc_endpoint_credit_dist *curdist_list; 790bdcd8170SKalle Valo 791bdcd8170SKalle Valo list_for_each_entry(curdist_list, ep_dist_list, list) { 792bdcd8170SKalle Valo if (curdist_list->endpoint == ENDPOINT_0) 793bdcd8170SKalle Valo continue; 794bdcd8170SKalle Valo 795bdcd8170SKalle Valo if ((curdist_list->svc_id == WMI_DATA_BK_SVC) || 796bdcd8170SKalle Valo (curdist_list->svc_id == WMI_DATA_BE_SVC)) 797bdcd8170SKalle Valo curdist_list->dist_flags |= HTC_EP_ACTIVE; 798bdcd8170SKalle Valo 799bdcd8170SKalle Valo if ((curdist_list->svc_id != WMI_CONTROL_SVC) && 800bdcd8170SKalle Valo !(curdist_list->dist_flags & HTC_EP_ACTIVE)) { 801bdcd8170SKalle Valo if (curdist_list->txq_depth == 0) 802bdcd8170SKalle Valo ath6k_reduce_credits(info, 803bdcd8170SKalle Valo curdist_list, 0); 804bdcd8170SKalle Valo else 805bdcd8170SKalle Valo ath6k_reduce_credits(info, 806bdcd8170SKalle Valo curdist_list, 807bdcd8170SKalle Valo curdist_list->cred_min); 808bdcd8170SKalle Valo } 809bdcd8170SKalle Valo } 810bdcd8170SKalle Valo } 811bdcd8170SKalle Valo 812bdcd8170SKalle Valo /* 813bdcd8170SKalle Valo * 814bdcd8170SKalle Valo * This function is invoked whenever endpoints require credit 815bdcd8170SKalle Valo * distributions. A lock is held while this function is invoked, this 816bdcd8170SKalle Valo * function shall NOT block. The ep_dist_list is a list of distribution 817bdcd8170SKalle Valo * structures in prioritized order as defined by the call to the 818bdcd8170SKalle Valo * htc_set_credit_dist() api. 819bdcd8170SKalle Valo */ 820bdcd8170SKalle Valo void ath6k_credit_distribute(struct htc_credit_state_info *cred_info, 821bdcd8170SKalle Valo struct list_head *ep_dist_list, 822bdcd8170SKalle Valo enum htc_credit_dist_reason reason) 823bdcd8170SKalle Valo { 824bdcd8170SKalle Valo switch (reason) { 825bdcd8170SKalle Valo case HTC_CREDIT_DIST_SEND_COMPLETE: 826bdcd8170SKalle Valo ath6k_credit_update(cred_info, ep_dist_list); 827bdcd8170SKalle Valo break; 828bdcd8170SKalle Valo case HTC_CREDIT_DIST_ACTIVITY_CHANGE: 829bdcd8170SKalle Valo ath6k_redistribute_credits(cred_info, ep_dist_list); 830bdcd8170SKalle Valo break; 831bdcd8170SKalle Valo default: 832bdcd8170SKalle Valo break; 833bdcd8170SKalle Valo } 834bdcd8170SKalle Valo 835bdcd8170SKalle Valo WARN_ON(cred_info->cur_free_credits > cred_info->total_avail_credits); 836bdcd8170SKalle Valo WARN_ON(cred_info->cur_free_credits < 0); 837bdcd8170SKalle Valo } 838bdcd8170SKalle Valo 839bdcd8170SKalle Valo void disconnect_timer_handler(unsigned long ptr) 840bdcd8170SKalle Valo { 841bdcd8170SKalle Valo struct net_device *dev = (struct net_device *)ptr; 842334234b5SVasanthakumar Thiagarajan struct ath6kl_vif *vif = netdev_priv(dev); 843bdcd8170SKalle Valo 844e29f25f5SVasanthakumar Thiagarajan ath6kl_init_profile_info(vif); 845240d2799SVasanthakumar Thiagarajan ath6kl_disconnect(vif); 846bdcd8170SKalle Valo } 847bdcd8170SKalle Valo 848240d2799SVasanthakumar Thiagarajan void ath6kl_disconnect(struct ath6kl_vif *vif) 849bdcd8170SKalle Valo { 85059c98449SVasanthakumar Thiagarajan if (test_bit(CONNECTED, &vif->flags) || 85159c98449SVasanthakumar Thiagarajan test_bit(CONNECT_PEND, &vif->flags)) { 852240d2799SVasanthakumar Thiagarajan ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx); 853bdcd8170SKalle Valo /* 854bdcd8170SKalle Valo * Disconnect command is issued, clear the connect pending 855bdcd8170SKalle Valo * flag. The connected flag will be cleared in 856bdcd8170SKalle Valo * disconnect event notification. 857bdcd8170SKalle Valo */ 85859c98449SVasanthakumar Thiagarajan clear_bit(CONNECT_PEND, &vif->flags); 859bdcd8170SKalle Valo } 860bdcd8170SKalle Valo } 861bdcd8170SKalle Valo 862abcb344bSKalle Valo void ath6kl_deep_sleep_enable(struct ath6kl *ar) 863abcb344bSKalle Valo { 86459c98449SVasanthakumar Thiagarajan /* TODO: Pass vif instead of taking it from ar */ 86559c98449SVasanthakumar Thiagarajan struct ath6kl_vif *vif = ar->vif; 86659c98449SVasanthakumar Thiagarajan 86714ee6f6bSVasanthakumar Thiagarajan switch (vif->sme_state) { 868abcb344bSKalle Valo case SME_CONNECTING: 86928ae58ddSVasanthakumar Thiagarajan cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0, 870abcb344bSKalle Valo NULL, 0, 871abcb344bSKalle Valo WLAN_STATUS_UNSPECIFIED_FAILURE, 872abcb344bSKalle Valo GFP_KERNEL); 873abcb344bSKalle Valo break; 874abcb344bSKalle Valo case SME_CONNECTED: 875abcb344bSKalle Valo default: 876abcb344bSKalle Valo /* 877abcb344bSKalle Valo * FIXME: oddly enough smeState is in DISCONNECTED during 878abcb344bSKalle Valo * suspend, why? Need to send disconnected event in that 879abcb344bSKalle Valo * state. 880abcb344bSKalle Valo */ 88128ae58ddSVasanthakumar Thiagarajan cfg80211_disconnected(vif->ndev, 0, NULL, 0, GFP_KERNEL); 882abcb344bSKalle Valo break; 883abcb344bSKalle Valo } 884abcb344bSKalle Valo 88559c98449SVasanthakumar Thiagarajan if (test_bit(CONNECTED, &vif->flags) || 88659c98449SVasanthakumar Thiagarajan test_bit(CONNECT_PEND, &vif->flags)) 887334234b5SVasanthakumar Thiagarajan ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); 888abcb344bSKalle Valo 88914ee6f6bSVasanthakumar Thiagarajan vif->sme_state = SME_DISCONNECTED; 890abcb344bSKalle Valo 891abcb344bSKalle Valo /* disable scanning */ 892334234b5SVasanthakumar Thiagarajan if (ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0xFFFF, 0, 0, 893334234b5SVasanthakumar Thiagarajan 0, 0, 0, 0, 0, 0, 0) != 0) 894abcb344bSKalle Valo printk(KERN_WARNING "ath6kl: failed to disable scan " 895abcb344bSKalle Valo "during suspend\n"); 896abcb344bSKalle Valo 897240d2799SVasanthakumar Thiagarajan ath6kl_cfg80211_scan_complete_event(vif, -ECANCELED); 898aa6cffc1SChilam Ng 899aa6cffc1SChilam Ng /* save the current power mode before enabling power save */ 900aa6cffc1SChilam Ng ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; 901aa6cffc1SChilam Ng 902334234b5SVasanthakumar Thiagarajan if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0) 903aa6cffc1SChilam Ng ath6kl_warn("ath6kl_deep_sleep_enable: " 904aa6cffc1SChilam Ng "wmi_powermode_cmd failed\n"); 905abcb344bSKalle Valo } 906abcb344bSKalle Valo 907bdcd8170SKalle Valo /* WMI Event handlers */ 908bdcd8170SKalle Valo 909bdcd8170SKalle Valo static const char *get_hw_id_string(u32 id) 910bdcd8170SKalle Valo { 911bdcd8170SKalle Valo switch (id) { 912bdcd8170SKalle Valo case AR6003_REV1_VERSION: 913bdcd8170SKalle Valo return "1.0"; 914bdcd8170SKalle Valo case AR6003_REV2_VERSION: 915bdcd8170SKalle Valo return "2.0"; 916bdcd8170SKalle Valo case AR6003_REV3_VERSION: 917bdcd8170SKalle Valo return "2.1.1"; 918bdcd8170SKalle Valo default: 919bdcd8170SKalle Valo return "unknown"; 920bdcd8170SKalle Valo } 921bdcd8170SKalle Valo } 922bdcd8170SKalle Valo 923bdcd8170SKalle Valo void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver) 924bdcd8170SKalle Valo { 925bdcd8170SKalle Valo struct ath6kl *ar = devt; 926bdcd8170SKalle Valo 927d66ea4f9SVasanthakumar Thiagarajan memcpy(ar->mac_addr, datap, ETH_ALEN); 928bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, "%s: mac addr = %pM\n", 929d66ea4f9SVasanthakumar Thiagarajan __func__, ar->mac_addr); 930bdcd8170SKalle Valo 931bdcd8170SKalle Valo ar->version.wlan_ver = sw_ver; 932bdcd8170SKalle Valo ar->version.abi_ver = abi_ver; 933bdcd8170SKalle Valo 934be98e3a4SVasanthakumar Thiagarajan snprintf(ar->wiphy->fw_version, 935be98e3a4SVasanthakumar Thiagarajan sizeof(ar->wiphy->fw_version), 936bdcd8170SKalle Valo "%u.%u.%u.%u", 937bdcd8170SKalle Valo (ar->version.wlan_ver & 0xf0000000) >> 28, 938bdcd8170SKalle Valo (ar->version.wlan_ver & 0x0f000000) >> 24, 939bdcd8170SKalle Valo (ar->version.wlan_ver & 0x00ff0000) >> 16, 940bdcd8170SKalle Valo (ar->version.wlan_ver & 0x0000ffff)); 941bdcd8170SKalle Valo 942bdcd8170SKalle Valo /* indicate to the waiting thread that the ready event was received */ 943bdcd8170SKalle Valo set_bit(WMI_READY, &ar->flag); 944bdcd8170SKalle Valo wake_up(&ar->event_wq); 945bdcd8170SKalle Valo 946003353b0SKalle Valo ath6kl_info("hw %s fw %s%s\n", 947be98e3a4SVasanthakumar Thiagarajan get_hw_id_string(ar->wiphy->hw_version), 948be98e3a4SVasanthakumar Thiagarajan ar->wiphy->fw_version, 949003353b0SKalle Valo test_bit(TESTMODE, &ar->flag) ? " testmode" : ""); 950bdcd8170SKalle Valo } 951bdcd8170SKalle Valo 952240d2799SVasanthakumar Thiagarajan void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status) 953bdcd8170SKalle Valo { 954240d2799SVasanthakumar Thiagarajan struct ath6kl *ar = vif->ar; 95559c98449SVasanthakumar Thiagarajan 956240d2799SVasanthakumar Thiagarajan ath6kl_cfg80211_scan_complete_event(vif, status); 957bdcd8170SKalle Valo 958551185caSJouni Malinen if (!ar->usr_bss_filter) { 95959c98449SVasanthakumar Thiagarajan clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 960240d2799SVasanthakumar Thiagarajan ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 961240d2799SVasanthakumar Thiagarajan NONE_BSS_FILTER, 0); 962551185caSJouni Malinen } 963bdcd8170SKalle Valo 964bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_WLAN_SCAN, "scan complete: %d\n", status); 965bdcd8170SKalle Valo } 966bdcd8170SKalle Valo 967240d2799SVasanthakumar Thiagarajan void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid, 968bdcd8170SKalle Valo u16 listen_int, u16 beacon_int, 969bdcd8170SKalle Valo enum network_type net_type, u8 beacon_ie_len, 970bdcd8170SKalle Valo u8 assoc_req_len, u8 assoc_resp_len, 971bdcd8170SKalle Valo u8 *assoc_info) 972bdcd8170SKalle Valo { 973240d2799SVasanthakumar Thiagarajan struct ath6kl *ar = vif->ar; 97459c98449SVasanthakumar Thiagarajan 975240d2799SVasanthakumar Thiagarajan ath6kl_cfg80211_connect_event(vif, channel, bssid, 976bdcd8170SKalle Valo listen_int, beacon_int, 977bdcd8170SKalle Valo net_type, beacon_ie_len, 978bdcd8170SKalle Valo assoc_req_len, assoc_resp_len, 979bdcd8170SKalle Valo assoc_info); 980bdcd8170SKalle Valo 9818c8b65e3SVasanthakumar Thiagarajan memcpy(vif->bssid, bssid, sizeof(vif->bssid)); 982f74bac54SVasanthakumar Thiagarajan vif->bss_ch = channel; 983bdcd8170SKalle Valo 984f5938f24SVasanthakumar Thiagarajan if ((vif->nw_type == INFRA_NETWORK)) 985334234b5SVasanthakumar Thiagarajan ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 986334234b5SVasanthakumar Thiagarajan ar->listen_intvl_t, 987bdcd8170SKalle Valo ar->listen_intvl_b); 988bdcd8170SKalle Valo 989240d2799SVasanthakumar Thiagarajan netif_wake_queue(vif->ndev); 990bdcd8170SKalle Valo 991bdcd8170SKalle Valo /* Update connect & link status atomically */ 992478ac027SVasanthakumar Thiagarajan spin_lock_bh(&vif->if_lock); 99359c98449SVasanthakumar Thiagarajan set_bit(CONNECTED, &vif->flags); 99459c98449SVasanthakumar Thiagarajan clear_bit(CONNECT_PEND, &vif->flags); 995240d2799SVasanthakumar Thiagarajan netif_carrier_on(vif->ndev); 996478ac027SVasanthakumar Thiagarajan spin_unlock_bh(&vif->if_lock); 997bdcd8170SKalle Valo 9982132c69cSVasanthakumar Thiagarajan aggr_reset_state(vif->aggr_cntxt); 999cf5333d7SVasanthakumar Thiagarajan vif->reconnect_flag = 0; 1000bdcd8170SKalle Valo 1001f5938f24SVasanthakumar Thiagarajan if ((vif->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) { 1002bdcd8170SKalle Valo memset(ar->node_map, 0, sizeof(ar->node_map)); 1003bdcd8170SKalle Valo ar->node_num = 0; 1004bdcd8170SKalle Valo ar->next_ep_id = ENDPOINT_2; 1005bdcd8170SKalle Valo } 1006bdcd8170SKalle Valo 1007551185caSJouni Malinen if (!ar->usr_bss_filter) { 100859c98449SVasanthakumar Thiagarajan set_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 1009240d2799SVasanthakumar Thiagarajan ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 1010240d2799SVasanthakumar Thiagarajan CURRENT_BSS_FILTER, 0); 1011551185caSJouni Malinen } 1012bdcd8170SKalle Valo } 1013bdcd8170SKalle Valo 1014240d2799SVasanthakumar Thiagarajan void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast) 1015bdcd8170SKalle Valo { 1016bdcd8170SKalle Valo struct ath6kl_sta *sta; 1017240d2799SVasanthakumar Thiagarajan struct ath6kl *ar = vif->ar; 1018bdcd8170SKalle Valo u8 tsc[6]; 1019240d2799SVasanthakumar Thiagarajan 1020bdcd8170SKalle Valo /* 1021bdcd8170SKalle Valo * For AP case, keyid will have aid of STA which sent pkt with 1022bdcd8170SKalle Valo * MIC error. Use this aid to get MAC & send it to hostapd. 1023bdcd8170SKalle Valo */ 1024f5938f24SVasanthakumar Thiagarajan if (vif->nw_type == AP_NETWORK) { 1025bdcd8170SKalle Valo sta = ath6kl_find_sta_by_aid(ar, (keyid >> 2)); 1026bdcd8170SKalle Valo if (!sta) 1027bdcd8170SKalle Valo return; 1028bdcd8170SKalle Valo 1029bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, 1030bdcd8170SKalle Valo "ap tkip mic error received from aid=%d\n", keyid); 1031bdcd8170SKalle Valo 1032bdcd8170SKalle Valo memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */ 1033240d2799SVasanthakumar Thiagarajan cfg80211_michael_mic_failure(vif->ndev, sta->mac, 1034bdcd8170SKalle Valo NL80211_KEYTYPE_PAIRWISE, keyid, 1035bdcd8170SKalle Valo tsc, GFP_KERNEL); 1036bdcd8170SKalle Valo } else 1037240d2799SVasanthakumar Thiagarajan ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast); 1038bdcd8170SKalle Valo 1039bdcd8170SKalle Valo } 1040bdcd8170SKalle Valo 1041240d2799SVasanthakumar Thiagarajan static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len) 1042bdcd8170SKalle Valo { 1043bdcd8170SKalle Valo struct wmi_target_stats *tgt_stats = 1044bdcd8170SKalle Valo (struct wmi_target_stats *) ptr; 1045240d2799SVasanthakumar Thiagarajan struct ath6kl *ar = vif->ar; 1046b95907a7SVasanthakumar Thiagarajan struct target_stats *stats = &vif->target_stats; 1047bdcd8170SKalle Valo struct tkip_ccmp_stats *ccmp_stats; 1048bdcd8170SKalle Valo u8 ac; 1049bdcd8170SKalle Valo 1050bdcd8170SKalle Valo if (len < sizeof(*tgt_stats)) 1051bdcd8170SKalle Valo return; 1052bdcd8170SKalle Valo 1053bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, "updating target stats\n"); 1054bdcd8170SKalle Valo 1055bdcd8170SKalle Valo stats->tx_pkt += le32_to_cpu(tgt_stats->stats.tx.pkt); 1056bdcd8170SKalle Valo stats->tx_byte += le32_to_cpu(tgt_stats->stats.tx.byte); 1057bdcd8170SKalle Valo stats->tx_ucast_pkt += le32_to_cpu(tgt_stats->stats.tx.ucast_pkt); 1058bdcd8170SKalle Valo stats->tx_ucast_byte += le32_to_cpu(tgt_stats->stats.tx.ucast_byte); 1059bdcd8170SKalle Valo stats->tx_mcast_pkt += le32_to_cpu(tgt_stats->stats.tx.mcast_pkt); 1060bdcd8170SKalle Valo stats->tx_mcast_byte += le32_to_cpu(tgt_stats->stats.tx.mcast_byte); 1061bdcd8170SKalle Valo stats->tx_bcast_pkt += le32_to_cpu(tgt_stats->stats.tx.bcast_pkt); 1062bdcd8170SKalle Valo stats->tx_bcast_byte += le32_to_cpu(tgt_stats->stats.tx.bcast_byte); 1063bdcd8170SKalle Valo stats->tx_rts_success_cnt += 1064bdcd8170SKalle Valo le32_to_cpu(tgt_stats->stats.tx.rts_success_cnt); 1065bdcd8170SKalle Valo 1066bdcd8170SKalle Valo for (ac = 0; ac < WMM_NUM_AC; ac++) 1067bdcd8170SKalle Valo stats->tx_pkt_per_ac[ac] += 1068bdcd8170SKalle Valo le32_to_cpu(tgt_stats->stats.tx.pkt_per_ac[ac]); 1069bdcd8170SKalle Valo 1070bdcd8170SKalle Valo stats->tx_err += le32_to_cpu(tgt_stats->stats.tx.err); 1071bdcd8170SKalle Valo stats->tx_fail_cnt += le32_to_cpu(tgt_stats->stats.tx.fail_cnt); 1072bdcd8170SKalle Valo stats->tx_retry_cnt += le32_to_cpu(tgt_stats->stats.tx.retry_cnt); 1073bdcd8170SKalle Valo stats->tx_mult_retry_cnt += 1074bdcd8170SKalle Valo le32_to_cpu(tgt_stats->stats.tx.mult_retry_cnt); 1075bdcd8170SKalle Valo stats->tx_rts_fail_cnt += 1076bdcd8170SKalle Valo le32_to_cpu(tgt_stats->stats.tx.rts_fail_cnt); 1077bdcd8170SKalle Valo stats->tx_ucast_rate = 1078bdcd8170SKalle Valo ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.tx.ucast_rate)); 1079bdcd8170SKalle Valo 1080bdcd8170SKalle Valo stats->rx_pkt += le32_to_cpu(tgt_stats->stats.rx.pkt); 1081bdcd8170SKalle Valo stats->rx_byte += le32_to_cpu(tgt_stats->stats.rx.byte); 1082bdcd8170SKalle Valo stats->rx_ucast_pkt += le32_to_cpu(tgt_stats->stats.rx.ucast_pkt); 1083bdcd8170SKalle Valo stats->rx_ucast_byte += le32_to_cpu(tgt_stats->stats.rx.ucast_byte); 1084bdcd8170SKalle Valo stats->rx_mcast_pkt += le32_to_cpu(tgt_stats->stats.rx.mcast_pkt); 1085bdcd8170SKalle Valo stats->rx_mcast_byte += le32_to_cpu(tgt_stats->stats.rx.mcast_byte); 1086bdcd8170SKalle Valo stats->rx_bcast_pkt += le32_to_cpu(tgt_stats->stats.rx.bcast_pkt); 1087bdcd8170SKalle Valo stats->rx_bcast_byte += le32_to_cpu(tgt_stats->stats.rx.bcast_byte); 1088bdcd8170SKalle Valo stats->rx_frgment_pkt += le32_to_cpu(tgt_stats->stats.rx.frgment_pkt); 1089bdcd8170SKalle Valo stats->rx_err += le32_to_cpu(tgt_stats->stats.rx.err); 1090bdcd8170SKalle Valo stats->rx_crc_err += le32_to_cpu(tgt_stats->stats.rx.crc_err); 1091bdcd8170SKalle Valo stats->rx_key_cache_miss += 1092bdcd8170SKalle Valo le32_to_cpu(tgt_stats->stats.rx.key_cache_miss); 1093bdcd8170SKalle Valo stats->rx_decrypt_err += le32_to_cpu(tgt_stats->stats.rx.decrypt_err); 1094bdcd8170SKalle Valo stats->rx_dupl_frame += le32_to_cpu(tgt_stats->stats.rx.dupl_frame); 1095bdcd8170SKalle Valo stats->rx_ucast_rate = 1096bdcd8170SKalle Valo ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.rx.ucast_rate)); 1097bdcd8170SKalle Valo 1098bdcd8170SKalle Valo ccmp_stats = &tgt_stats->stats.tkip_ccmp_stats; 1099bdcd8170SKalle Valo 1100bdcd8170SKalle Valo stats->tkip_local_mic_fail += 1101bdcd8170SKalle Valo le32_to_cpu(ccmp_stats->tkip_local_mic_fail); 1102bdcd8170SKalle Valo stats->tkip_cnter_measures_invoked += 1103bdcd8170SKalle Valo le32_to_cpu(ccmp_stats->tkip_cnter_measures_invoked); 1104bdcd8170SKalle Valo stats->tkip_fmt_err += le32_to_cpu(ccmp_stats->tkip_fmt_err); 1105bdcd8170SKalle Valo 1106bdcd8170SKalle Valo stats->ccmp_fmt_err += le32_to_cpu(ccmp_stats->ccmp_fmt_err); 1107bdcd8170SKalle Valo stats->ccmp_replays += le32_to_cpu(ccmp_stats->ccmp_replays); 1108bdcd8170SKalle Valo 1109bdcd8170SKalle Valo stats->pwr_save_fail_cnt += 1110bdcd8170SKalle Valo le32_to_cpu(tgt_stats->pm_stats.pwr_save_failure_cnt); 1111bdcd8170SKalle Valo stats->noise_floor_calib = 1112bdcd8170SKalle Valo a_sle32_to_cpu(tgt_stats->noise_floor_calib); 1113bdcd8170SKalle Valo 1114bdcd8170SKalle Valo stats->cs_bmiss_cnt += 1115bdcd8170SKalle Valo le32_to_cpu(tgt_stats->cserv_stats.cs_bmiss_cnt); 1116bdcd8170SKalle Valo stats->cs_low_rssi_cnt += 1117bdcd8170SKalle Valo le32_to_cpu(tgt_stats->cserv_stats.cs_low_rssi_cnt); 1118bdcd8170SKalle Valo stats->cs_connect_cnt += 1119bdcd8170SKalle Valo le16_to_cpu(tgt_stats->cserv_stats.cs_connect_cnt); 1120bdcd8170SKalle Valo stats->cs_discon_cnt += 1121bdcd8170SKalle Valo le16_to_cpu(tgt_stats->cserv_stats.cs_discon_cnt); 1122bdcd8170SKalle Valo 1123bdcd8170SKalle Valo stats->cs_ave_beacon_rssi = 1124bdcd8170SKalle Valo a_sle16_to_cpu(tgt_stats->cserv_stats.cs_ave_beacon_rssi); 1125bdcd8170SKalle Valo 1126bdcd8170SKalle Valo stats->cs_last_roam_msec = 1127bdcd8170SKalle Valo tgt_stats->cserv_stats.cs_last_roam_msec; 1128bdcd8170SKalle Valo stats->cs_snr = tgt_stats->cserv_stats.cs_snr; 1129bdcd8170SKalle Valo stats->cs_rssi = a_sle16_to_cpu(tgt_stats->cserv_stats.cs_rssi); 1130bdcd8170SKalle Valo 1131bdcd8170SKalle Valo stats->lq_val = le32_to_cpu(tgt_stats->lq_val); 1132bdcd8170SKalle Valo 1133bdcd8170SKalle Valo stats->wow_pkt_dropped += 1134bdcd8170SKalle Valo le32_to_cpu(tgt_stats->wow_stats.wow_pkt_dropped); 1135bdcd8170SKalle Valo stats->wow_host_pkt_wakeups += 1136bdcd8170SKalle Valo tgt_stats->wow_stats.wow_host_pkt_wakeups; 1137bdcd8170SKalle Valo stats->wow_host_evt_wakeups += 1138bdcd8170SKalle Valo tgt_stats->wow_stats.wow_host_evt_wakeups; 1139bdcd8170SKalle Valo stats->wow_evt_discarded += 1140bdcd8170SKalle Valo le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded); 1141bdcd8170SKalle Valo 1142b95907a7SVasanthakumar Thiagarajan if (test_bit(STATS_UPDATE_PEND, &vif->flags)) { 1143b95907a7SVasanthakumar Thiagarajan clear_bit(STATS_UPDATE_PEND, &vif->flags); 1144bdcd8170SKalle Valo wake_up(&ar->event_wq); 1145bdcd8170SKalle Valo } 1146bdcd8170SKalle Valo } 1147bdcd8170SKalle Valo 1148bdcd8170SKalle Valo static void ath6kl_add_le32(__le32 *var, __le32 val) 1149bdcd8170SKalle Valo { 1150bdcd8170SKalle Valo *var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val)); 1151bdcd8170SKalle Valo } 1152bdcd8170SKalle Valo 1153240d2799SVasanthakumar Thiagarajan void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len) 1154bdcd8170SKalle Valo { 1155bdcd8170SKalle Valo struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr; 1156240d2799SVasanthakumar Thiagarajan struct ath6kl *ar = vif->ar; 1157bdcd8170SKalle Valo struct wmi_ap_mode_stat *ap = &ar->ap_stats; 1158bdcd8170SKalle Valo struct wmi_per_sta_stat *st_ap, *st_p; 1159bdcd8170SKalle Valo u8 ac; 1160bdcd8170SKalle Valo 1161f5938f24SVasanthakumar Thiagarajan if (vif->nw_type == AP_NETWORK) { 1162bdcd8170SKalle Valo if (len < sizeof(*p)) 1163bdcd8170SKalle Valo return; 1164bdcd8170SKalle Valo 1165bdcd8170SKalle Valo for (ac = 0; ac < AP_MAX_NUM_STA; ac++) { 1166bdcd8170SKalle Valo st_ap = &ap->sta[ac]; 1167bdcd8170SKalle Valo st_p = &p->sta[ac]; 1168bdcd8170SKalle Valo 1169bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->tx_bytes, st_p->tx_bytes); 1170bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->tx_pkts, st_p->tx_pkts); 1171bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->tx_error, st_p->tx_error); 1172bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->tx_discard, st_p->tx_discard); 1173bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->rx_bytes, st_p->rx_bytes); 1174bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->rx_pkts, st_p->rx_pkts); 1175bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->rx_error, st_p->rx_error); 1176bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->rx_discard, st_p->rx_discard); 1177bdcd8170SKalle Valo } 1178bdcd8170SKalle Valo 1179bdcd8170SKalle Valo } else { 1180240d2799SVasanthakumar Thiagarajan ath6kl_update_target_stats(vif, ptr, len); 1181bdcd8170SKalle Valo } 1182bdcd8170SKalle Valo } 1183bdcd8170SKalle Valo 1184bdcd8170SKalle Valo void ath6kl_wakeup_event(void *dev) 1185bdcd8170SKalle Valo { 1186bdcd8170SKalle Valo struct ath6kl *ar = (struct ath6kl *) dev; 1187bdcd8170SKalle Valo 1188bdcd8170SKalle Valo wake_up(&ar->event_wq); 1189bdcd8170SKalle Valo } 1190bdcd8170SKalle Valo 1191bdcd8170SKalle Valo void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr) 1192bdcd8170SKalle Valo { 1193bdcd8170SKalle Valo struct ath6kl *ar = (struct ath6kl *) devt; 1194bdcd8170SKalle Valo 1195bdcd8170SKalle Valo ar->tx_pwr = tx_pwr; 1196bdcd8170SKalle Valo wake_up(&ar->event_wq); 1197bdcd8170SKalle Valo } 1198bdcd8170SKalle Valo 1199240d2799SVasanthakumar Thiagarajan void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid) 1200bdcd8170SKalle Valo { 1201bdcd8170SKalle Valo struct ath6kl_sta *conn; 1202bdcd8170SKalle Valo struct sk_buff *skb; 1203bdcd8170SKalle Valo bool psq_empty = false; 1204240d2799SVasanthakumar Thiagarajan struct ath6kl *ar = vif->ar; 1205bdcd8170SKalle Valo 1206bdcd8170SKalle Valo conn = ath6kl_find_sta_by_aid(ar, aid); 1207bdcd8170SKalle Valo 1208bdcd8170SKalle Valo if (!conn) 1209bdcd8170SKalle Valo return; 1210bdcd8170SKalle Valo /* 1211bdcd8170SKalle Valo * Send out a packet queued on ps queue. When the ps queue 1212bdcd8170SKalle Valo * becomes empty update the PVB for this station. 1213bdcd8170SKalle Valo */ 1214bdcd8170SKalle Valo spin_lock_bh(&conn->psq_lock); 1215bdcd8170SKalle Valo psq_empty = skb_queue_empty(&conn->psq); 1216bdcd8170SKalle Valo spin_unlock_bh(&conn->psq_lock); 1217bdcd8170SKalle Valo 1218bdcd8170SKalle Valo if (psq_empty) 1219bdcd8170SKalle Valo /* TODO: Send out a NULL data frame */ 1220bdcd8170SKalle Valo return; 1221bdcd8170SKalle Valo 1222bdcd8170SKalle Valo spin_lock_bh(&conn->psq_lock); 1223bdcd8170SKalle Valo skb = skb_dequeue(&conn->psq); 1224bdcd8170SKalle Valo spin_unlock_bh(&conn->psq_lock); 1225bdcd8170SKalle Valo 1226bdcd8170SKalle Valo conn->sta_flags |= STA_PS_POLLED; 1227240d2799SVasanthakumar Thiagarajan ath6kl_data_tx(skb, vif->ndev); 1228bdcd8170SKalle Valo conn->sta_flags &= ~STA_PS_POLLED; 1229bdcd8170SKalle Valo 1230bdcd8170SKalle Valo spin_lock_bh(&conn->psq_lock); 1231bdcd8170SKalle Valo psq_empty = skb_queue_empty(&conn->psq); 1232bdcd8170SKalle Valo spin_unlock_bh(&conn->psq_lock); 1233bdcd8170SKalle Valo 1234bdcd8170SKalle Valo if (psq_empty) 1235334234b5SVasanthakumar Thiagarajan ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, conn->aid, 0); 1236bdcd8170SKalle Valo } 1237bdcd8170SKalle Valo 1238240d2799SVasanthakumar Thiagarajan void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif) 1239bdcd8170SKalle Valo { 1240bdcd8170SKalle Valo bool mcastq_empty = false; 1241bdcd8170SKalle Valo struct sk_buff *skb; 1242240d2799SVasanthakumar Thiagarajan struct ath6kl *ar = vif->ar; 1243bdcd8170SKalle Valo 1244bdcd8170SKalle Valo /* 1245bdcd8170SKalle Valo * If there are no associated STAs, ignore the DTIM expiry event. 1246bdcd8170SKalle Valo * There can be potential race conditions where the last associated 1247bdcd8170SKalle Valo * STA may disconnect & before the host could clear the 'Indicate 1248bdcd8170SKalle Valo * DTIM' request to the firmware, the firmware would have just 1249bdcd8170SKalle Valo * indicated a DTIM expiry event. The race is between 'clear DTIM 1250bdcd8170SKalle Valo * expiry cmd' going from the host to the firmware & the DTIM 1251bdcd8170SKalle Valo * expiry event happening from the firmware to the host. 1252bdcd8170SKalle Valo */ 1253bdcd8170SKalle Valo if (!ar->sta_list_index) 1254bdcd8170SKalle Valo return; 1255bdcd8170SKalle Valo 1256bdcd8170SKalle Valo spin_lock_bh(&ar->mcastpsq_lock); 1257bdcd8170SKalle Valo mcastq_empty = skb_queue_empty(&ar->mcastpsq); 1258bdcd8170SKalle Valo spin_unlock_bh(&ar->mcastpsq_lock); 1259bdcd8170SKalle Valo 1260bdcd8170SKalle Valo if (mcastq_empty) 1261bdcd8170SKalle Valo return; 1262bdcd8170SKalle Valo 1263bdcd8170SKalle Valo /* set the STA flag to dtim_expired for the frame to go out */ 126459c98449SVasanthakumar Thiagarajan set_bit(DTIM_EXPIRED, &vif->flags); 1265bdcd8170SKalle Valo 1266bdcd8170SKalle Valo spin_lock_bh(&ar->mcastpsq_lock); 1267bdcd8170SKalle Valo while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) { 1268bdcd8170SKalle Valo spin_unlock_bh(&ar->mcastpsq_lock); 1269bdcd8170SKalle Valo 1270240d2799SVasanthakumar Thiagarajan ath6kl_data_tx(skb, vif->ndev); 1271bdcd8170SKalle Valo 1272bdcd8170SKalle Valo spin_lock_bh(&ar->mcastpsq_lock); 1273bdcd8170SKalle Valo } 1274bdcd8170SKalle Valo spin_unlock_bh(&ar->mcastpsq_lock); 1275bdcd8170SKalle Valo 127659c98449SVasanthakumar Thiagarajan clear_bit(DTIM_EXPIRED, &vif->flags); 1277bdcd8170SKalle Valo 1278bdcd8170SKalle Valo /* clear the LSB of the BitMapCtl field of the TIM IE */ 1279334234b5SVasanthakumar Thiagarajan ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, MCAST_AID, 0); 1280bdcd8170SKalle Valo } 1281bdcd8170SKalle Valo 1282240d2799SVasanthakumar Thiagarajan void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid, 1283bdcd8170SKalle Valo u8 assoc_resp_len, u8 *assoc_info, 1284bdcd8170SKalle Valo u16 prot_reason_status) 1285bdcd8170SKalle Valo { 1286240d2799SVasanthakumar Thiagarajan struct ath6kl *ar = vif->ar; 128759c98449SVasanthakumar Thiagarajan 1288f5938f24SVasanthakumar Thiagarajan if (vif->nw_type == AP_NETWORK) { 1289bdcd8170SKalle Valo if (!ath6kl_remove_sta(ar, bssid, prot_reason_status)) 1290bdcd8170SKalle Valo return; 1291bdcd8170SKalle Valo 1292bdcd8170SKalle Valo /* if no more associated STAs, empty the mcast PS q */ 1293bdcd8170SKalle Valo if (ar->sta_list_index == 0) { 1294bdcd8170SKalle Valo spin_lock_bh(&ar->mcastpsq_lock); 1295bdcd8170SKalle Valo skb_queue_purge(&ar->mcastpsq); 1296bdcd8170SKalle Valo spin_unlock_bh(&ar->mcastpsq_lock); 1297bdcd8170SKalle Valo 1298bdcd8170SKalle Valo /* clear the LSB of the TIM IE's BitMapCtl field */ 1299bdcd8170SKalle Valo if (test_bit(WMI_READY, &ar->flag)) 1300334234b5SVasanthakumar Thiagarajan ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, 1301334234b5SVasanthakumar Thiagarajan MCAST_AID, 0); 1302bdcd8170SKalle Valo } 1303bdcd8170SKalle Valo 1304bdcd8170SKalle Valo if (!is_broadcast_ether_addr(bssid)) { 1305bdcd8170SKalle Valo /* send event to application */ 1306240d2799SVasanthakumar Thiagarajan cfg80211_del_sta(vif->ndev, bssid, GFP_KERNEL); 1307bdcd8170SKalle Valo } 1308bdcd8170SKalle Valo 1309240d2799SVasanthakumar Thiagarajan if (memcmp(vif->ndev->dev_addr, bssid, ETH_ALEN) == 0) { 13106f2a73f9SVasanthakumar Thiagarajan memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list)); 131159c98449SVasanthakumar Thiagarajan clear_bit(CONNECTED, &vif->flags); 1312151411e8SJouni Malinen } 1313bdcd8170SKalle Valo return; 1314bdcd8170SKalle Valo } 1315bdcd8170SKalle Valo 1316240d2799SVasanthakumar Thiagarajan ath6kl_cfg80211_disconnect_event(vif, reason, bssid, 1317bdcd8170SKalle Valo assoc_resp_len, assoc_info, 1318bdcd8170SKalle Valo prot_reason_status); 1319bdcd8170SKalle Valo 13202132c69cSVasanthakumar Thiagarajan aggr_reset_state(vif->aggr_cntxt); 1321bdcd8170SKalle Valo 1322de3ad713SVasanthakumar Thiagarajan del_timer(&vif->disconnect_timer); 1323bdcd8170SKalle Valo 1324bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_WLAN_CONNECT, 1325bdcd8170SKalle Valo "disconnect reason is %d\n", reason); 1326bdcd8170SKalle Valo 1327bdcd8170SKalle Valo /* 1328bdcd8170SKalle Valo * If the event is due to disconnect cmd from the host, only they 1329bdcd8170SKalle Valo * the target would stop trying to connect. Under any other 1330bdcd8170SKalle Valo * condition, target would keep trying to connect. 1331bdcd8170SKalle Valo */ 1332bdcd8170SKalle Valo if (reason == DISCONNECT_CMD) { 1333bdcd8170SKalle Valo if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag)) 1334240d2799SVasanthakumar Thiagarajan ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 1335240d2799SVasanthakumar Thiagarajan NONE_BSS_FILTER, 0); 1336bdcd8170SKalle Valo } else { 133759c98449SVasanthakumar Thiagarajan set_bit(CONNECT_PEND, &vif->flags); 1338bdcd8170SKalle Valo if (((reason == ASSOC_FAILED) && 1339bdcd8170SKalle Valo (prot_reason_status == 0x11)) || 1340bdcd8170SKalle Valo ((reason == ASSOC_FAILED) && (prot_reason_status == 0x0) 1341cf5333d7SVasanthakumar Thiagarajan && (vif->reconnect_flag == 1))) { 134259c98449SVasanthakumar Thiagarajan set_bit(CONNECTED, &vif->flags); 1343bdcd8170SKalle Valo return; 1344bdcd8170SKalle Valo } 1345bdcd8170SKalle Valo } 1346bdcd8170SKalle Valo 1347bdcd8170SKalle Valo /* update connect & link status atomically */ 1348478ac027SVasanthakumar Thiagarajan spin_lock_bh(&vif->if_lock); 134959c98449SVasanthakumar Thiagarajan clear_bit(CONNECTED, &vif->flags); 1350240d2799SVasanthakumar Thiagarajan netif_carrier_off(vif->ndev); 1351478ac027SVasanthakumar Thiagarajan spin_unlock_bh(&vif->if_lock); 1352bdcd8170SKalle Valo 1353cf5333d7SVasanthakumar Thiagarajan if ((reason != CSERV_DISCONNECT) || (vif->reconnect_flag != 1)) 1354cf5333d7SVasanthakumar Thiagarajan vif->reconnect_flag = 0; 1355bdcd8170SKalle Valo 1356bdcd8170SKalle Valo if (reason != CSERV_DISCONNECT) 1357bdcd8170SKalle Valo ar->user_key_ctrl = 0; 1358bdcd8170SKalle Valo 1359240d2799SVasanthakumar Thiagarajan netif_stop_queue(vif->ndev); 13608c8b65e3SVasanthakumar Thiagarajan memset(vif->bssid, 0, sizeof(vif->bssid)); 1361f74bac54SVasanthakumar Thiagarajan vif->bss_ch = 0; 1362bdcd8170SKalle Valo 1363bdcd8170SKalle Valo ath6kl_tx_data_cleanup(ar); 1364bdcd8170SKalle Valo } 1365bdcd8170SKalle Valo 1366bdcd8170SKalle Valo static int ath6kl_open(struct net_device *dev) 1367bdcd8170SKalle Valo { 136859c98449SVasanthakumar Thiagarajan struct ath6kl_vif *vif = netdev_priv(dev); 1369bdcd8170SKalle Valo 137059c98449SVasanthakumar Thiagarajan set_bit(WLAN_ENABLED, &vif->flags); 1371bdcd8170SKalle Valo 137259c98449SVasanthakumar Thiagarajan if (test_bit(CONNECTED, &vif->flags)) { 1373bdcd8170SKalle Valo netif_carrier_on(dev); 1374bdcd8170SKalle Valo netif_wake_queue(dev); 1375bdcd8170SKalle Valo } else 1376bdcd8170SKalle Valo netif_carrier_off(dev); 1377bdcd8170SKalle Valo 1378bdcd8170SKalle Valo return 0; 1379bdcd8170SKalle Valo } 1380bdcd8170SKalle Valo 1381bdcd8170SKalle Valo static int ath6kl_close(struct net_device *dev) 1382bdcd8170SKalle Valo { 1383bdcd8170SKalle Valo struct ath6kl *ar = ath6kl_priv(dev); 138459c98449SVasanthakumar Thiagarajan struct ath6kl_vif *vif = netdev_priv(dev); 1385bdcd8170SKalle Valo 1386bdcd8170SKalle Valo netif_stop_queue(dev); 1387bdcd8170SKalle Valo 1388240d2799SVasanthakumar Thiagarajan ath6kl_disconnect(vif); 1389bdcd8170SKalle Valo 1390bdcd8170SKalle Valo if (test_bit(WMI_READY, &ar->flag)) { 1391334234b5SVasanthakumar Thiagarajan if (ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0xFFFF, 1392334234b5SVasanthakumar Thiagarajan 0, 0, 0, 0, 0, 0, 0, 0, 0)) 1393bdcd8170SKalle Valo return -EIO; 1394bdcd8170SKalle Valo 139559c98449SVasanthakumar Thiagarajan clear_bit(WLAN_ENABLED, &vif->flags); 1396bdcd8170SKalle Valo } 1397bdcd8170SKalle Valo 1398240d2799SVasanthakumar Thiagarajan ath6kl_cfg80211_scan_complete_event(vif, -ECANCELED); 1399bdcd8170SKalle Valo 1400bdcd8170SKalle Valo return 0; 1401bdcd8170SKalle Valo } 1402bdcd8170SKalle Valo 1403bdcd8170SKalle Valo static struct net_device_stats *ath6kl_get_stats(struct net_device *dev) 1404bdcd8170SKalle Valo { 1405b95907a7SVasanthakumar Thiagarajan struct ath6kl_vif *vif = netdev_priv(dev); 1406bdcd8170SKalle Valo 1407b95907a7SVasanthakumar Thiagarajan return &vif->net_stats; 1408bdcd8170SKalle Valo } 1409bdcd8170SKalle Valo 1410bdcd8170SKalle Valo static struct net_device_ops ath6kl_netdev_ops = { 1411bdcd8170SKalle Valo .ndo_open = ath6kl_open, 1412bdcd8170SKalle Valo .ndo_stop = ath6kl_close, 1413bdcd8170SKalle Valo .ndo_start_xmit = ath6kl_data_tx, 1414bdcd8170SKalle Valo .ndo_get_stats = ath6kl_get_stats, 1415bdcd8170SKalle Valo }; 1416bdcd8170SKalle Valo 1417bdcd8170SKalle Valo void init_netdev(struct net_device *dev) 1418bdcd8170SKalle Valo { 1419bdcd8170SKalle Valo dev->netdev_ops = &ath6kl_netdev_ops; 1420bdcd8170SKalle Valo dev->watchdog_timeo = ATH6KL_TX_TIMEOUT; 1421bdcd8170SKalle Valo 1422bdcd8170SKalle Valo dev->needed_headroom = ETH_HLEN; 1423bdcd8170SKalle Valo dev->needed_headroom += sizeof(struct ath6kl_llc_snap_hdr) + 1424bdcd8170SKalle Valo sizeof(struct wmi_data_hdr) + HTC_HDR_LENGTH 14251df94a85SVasanthakumar Thiagarajan + WMI_MAX_TX_META_SZ + ATH6KL_HTC_ALIGN_BYTES; 1426bdcd8170SKalle Valo 1427bdcd8170SKalle Valo return; 1428bdcd8170SKalle Valo } 1429