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 23bdcd8170SKalle Valo struct ath6kl_sta *ath6kl_find_sta(struct ath6kl *ar, u8 *node_addr) 24bdcd8170SKalle Valo { 25bdcd8170SKalle Valo struct ath6kl_sta *conn = NULL; 26bdcd8170SKalle Valo u8 i, max_conn; 27bdcd8170SKalle Valo 28bdcd8170SKalle Valo max_conn = (ar->nw_type == AP_NETWORK) ? AP_MAX_NUM_STA : 0; 29bdcd8170SKalle Valo 30bdcd8170SKalle Valo for (i = 0; i < max_conn; i++) { 31bdcd8170SKalle Valo if (memcmp(node_addr, ar->sta_list[i].mac, ETH_ALEN) == 0) { 32bdcd8170SKalle Valo conn = &ar->sta_list[i]; 33bdcd8170SKalle Valo break; 34bdcd8170SKalle Valo } 35bdcd8170SKalle Valo } 36bdcd8170SKalle Valo 37bdcd8170SKalle Valo return conn; 38bdcd8170SKalle Valo } 39bdcd8170SKalle Valo 40bdcd8170SKalle Valo struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid) 41bdcd8170SKalle Valo { 42bdcd8170SKalle Valo struct ath6kl_sta *conn = NULL; 43bdcd8170SKalle Valo u8 ctr; 44bdcd8170SKalle Valo 45bdcd8170SKalle Valo for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { 46bdcd8170SKalle Valo if (ar->sta_list[ctr].aid == aid) { 47bdcd8170SKalle Valo conn = &ar->sta_list[ctr]; 48bdcd8170SKalle Valo break; 49bdcd8170SKalle Valo } 50bdcd8170SKalle Valo } 51bdcd8170SKalle Valo return conn; 52bdcd8170SKalle Valo } 53bdcd8170SKalle Valo 54bdcd8170SKalle Valo static void ath6kl_add_new_sta(struct ath6kl *ar, u8 *mac, u16 aid, u8 *wpaie, 55bdcd8170SKalle Valo u8 ielen, u8 keymgmt, u8 ucipher, u8 auth) 56bdcd8170SKalle Valo { 57bdcd8170SKalle Valo struct ath6kl_sta *sta; 58bdcd8170SKalle Valo u8 free_slot; 59bdcd8170SKalle Valo 60bdcd8170SKalle Valo free_slot = aid - 1; 61bdcd8170SKalle Valo 62bdcd8170SKalle Valo sta = &ar->sta_list[free_slot]; 63bdcd8170SKalle Valo memcpy(sta->mac, mac, ETH_ALEN); 643c774bbaSJouni Malinen if (ielen <= ATH6KL_MAX_IE) 65bdcd8170SKalle Valo memcpy(sta->wpa_ie, wpaie, ielen); 66bdcd8170SKalle Valo sta->aid = aid; 67bdcd8170SKalle Valo sta->keymgmt = keymgmt; 68bdcd8170SKalle Valo sta->ucipher = ucipher; 69bdcd8170SKalle Valo sta->auth = auth; 70bdcd8170SKalle Valo 71bdcd8170SKalle Valo ar->sta_list_index = ar->sta_list_index | (1 << free_slot); 72bdcd8170SKalle Valo ar->ap_stats.sta[free_slot].aid = cpu_to_le32(aid); 73bdcd8170SKalle Valo } 74bdcd8170SKalle Valo 75bdcd8170SKalle Valo static void ath6kl_sta_cleanup(struct ath6kl *ar, u8 i) 76bdcd8170SKalle Valo { 77bdcd8170SKalle Valo struct ath6kl_sta *sta = &ar->sta_list[i]; 78bdcd8170SKalle Valo 79bdcd8170SKalle Valo /* empty the queued pkts in the PS queue if any */ 80bdcd8170SKalle Valo spin_lock_bh(&sta->psq_lock); 81bdcd8170SKalle Valo skb_queue_purge(&sta->psq); 82bdcd8170SKalle Valo spin_unlock_bh(&sta->psq_lock); 83bdcd8170SKalle Valo 84bdcd8170SKalle Valo memset(&ar->ap_stats.sta[sta->aid - 1], 0, 85bdcd8170SKalle Valo sizeof(struct wmi_per_sta_stat)); 86bdcd8170SKalle Valo memset(sta->mac, 0, ETH_ALEN); 87bdcd8170SKalle Valo memset(sta->wpa_ie, 0, ATH6KL_MAX_IE); 88bdcd8170SKalle Valo sta->aid = 0; 89bdcd8170SKalle Valo sta->sta_flags = 0; 90bdcd8170SKalle Valo 91bdcd8170SKalle Valo ar->sta_list_index = ar->sta_list_index & ~(1 << i); 92bdcd8170SKalle Valo 93bdcd8170SKalle Valo } 94bdcd8170SKalle Valo 95bdcd8170SKalle Valo static u8 ath6kl_remove_sta(struct ath6kl *ar, u8 *mac, u16 reason) 96bdcd8170SKalle Valo { 97bdcd8170SKalle Valo u8 i, removed = 0; 98bdcd8170SKalle Valo 99bdcd8170SKalle Valo if (is_zero_ether_addr(mac)) 100bdcd8170SKalle Valo return removed; 101bdcd8170SKalle Valo 102bdcd8170SKalle Valo if (is_broadcast_ether_addr(mac)) { 103bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, "deleting all station\n"); 104bdcd8170SKalle Valo 105bdcd8170SKalle Valo for (i = 0; i < AP_MAX_NUM_STA; i++) { 106bdcd8170SKalle Valo if (!is_zero_ether_addr(ar->sta_list[i].mac)) { 107bdcd8170SKalle Valo ath6kl_sta_cleanup(ar, i); 108bdcd8170SKalle Valo removed = 1; 109bdcd8170SKalle Valo } 110bdcd8170SKalle Valo } 111bdcd8170SKalle Valo } else { 112bdcd8170SKalle Valo for (i = 0; i < AP_MAX_NUM_STA; i++) { 113bdcd8170SKalle Valo if (memcmp(ar->sta_list[i].mac, mac, ETH_ALEN) == 0) { 114bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, 115bdcd8170SKalle Valo "deleting station %pM aid=%d reason=%d\n", 116bdcd8170SKalle Valo mac, ar->sta_list[i].aid, reason); 117bdcd8170SKalle Valo ath6kl_sta_cleanup(ar, i); 118bdcd8170SKalle Valo removed = 1; 119bdcd8170SKalle Valo break; 120bdcd8170SKalle Valo } 121bdcd8170SKalle Valo } 122bdcd8170SKalle Valo } 123bdcd8170SKalle Valo 124bdcd8170SKalle Valo return removed; 125bdcd8170SKalle Valo } 126bdcd8170SKalle Valo 127bdcd8170SKalle Valo enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac) 128bdcd8170SKalle Valo { 129bdcd8170SKalle Valo struct ath6kl *ar = devt; 130bdcd8170SKalle Valo return ar->ac2ep_map[ac]; 131bdcd8170SKalle Valo } 132bdcd8170SKalle Valo 133bdcd8170SKalle Valo struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar) 134bdcd8170SKalle Valo { 135bdcd8170SKalle Valo struct ath6kl_cookie *cookie; 136bdcd8170SKalle Valo 137bdcd8170SKalle Valo cookie = ar->cookie_list; 138bdcd8170SKalle Valo if (cookie != NULL) { 139bdcd8170SKalle Valo ar->cookie_list = cookie->arc_list_next; 140bdcd8170SKalle Valo ar->cookie_count--; 141bdcd8170SKalle Valo } 142bdcd8170SKalle Valo 143bdcd8170SKalle Valo return cookie; 144bdcd8170SKalle Valo } 145bdcd8170SKalle Valo 146bdcd8170SKalle Valo void ath6kl_cookie_init(struct ath6kl *ar) 147bdcd8170SKalle Valo { 148bdcd8170SKalle Valo u32 i; 149bdcd8170SKalle Valo 150bdcd8170SKalle Valo ar->cookie_list = NULL; 151bdcd8170SKalle Valo ar->cookie_count = 0; 152bdcd8170SKalle Valo 153bdcd8170SKalle Valo memset(ar->cookie_mem, 0, sizeof(ar->cookie_mem)); 154bdcd8170SKalle Valo 155bdcd8170SKalle Valo for (i = 0; i < MAX_COOKIE_NUM; i++) 156bdcd8170SKalle Valo ath6kl_free_cookie(ar, &ar->cookie_mem[i]); 157bdcd8170SKalle Valo } 158bdcd8170SKalle Valo 159bdcd8170SKalle Valo void ath6kl_cookie_cleanup(struct ath6kl *ar) 160bdcd8170SKalle Valo { 161bdcd8170SKalle Valo ar->cookie_list = NULL; 162bdcd8170SKalle Valo ar->cookie_count = 0; 163bdcd8170SKalle Valo } 164bdcd8170SKalle Valo 165bdcd8170SKalle Valo void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie) 166bdcd8170SKalle Valo { 167bdcd8170SKalle Valo /* Insert first */ 168bdcd8170SKalle Valo 169bdcd8170SKalle Valo if (!ar || !cookie) 170bdcd8170SKalle Valo return; 171bdcd8170SKalle Valo 172bdcd8170SKalle Valo cookie->arc_list_next = ar->cookie_list; 173bdcd8170SKalle Valo ar->cookie_list = cookie; 174bdcd8170SKalle Valo ar->cookie_count++; 175bdcd8170SKalle Valo } 176bdcd8170SKalle Valo 177bdcd8170SKalle Valo /* set the window address register (using 4-byte register access ). */ 178bdcd8170SKalle Valo static int ath6kl_set_addrwin_reg(struct ath6kl *ar, u32 reg_addr, u32 addr) 179bdcd8170SKalle Valo { 180bdcd8170SKalle Valo int status; 181bdcd8170SKalle Valo s32 i; 182b142b914SVasanthakumar Thiagarajan __le32 addr_val; 183bdcd8170SKalle Valo 184bdcd8170SKalle Valo /* 185bdcd8170SKalle Valo * Write bytes 1,2,3 of the register to set the upper address bytes, 186bdcd8170SKalle Valo * the LSB is written last to initiate the access cycle 187bdcd8170SKalle Valo */ 188bdcd8170SKalle Valo 189bdcd8170SKalle Valo for (i = 1; i <= 3; i++) { 190bdcd8170SKalle Valo /* 191bdcd8170SKalle Valo * Fill the buffer with the address byte value we want to 192b142b914SVasanthakumar Thiagarajan * hit 4 times. No need to worry about endianness as the 193b142b914SVasanthakumar Thiagarajan * same byte is copied to all four bytes of addr_val at 194b142b914SVasanthakumar Thiagarajan * any time. 195bdcd8170SKalle Valo */ 196b142b914SVasanthakumar Thiagarajan memset((u8 *)&addr_val, ((u8 *)&addr)[i], 4); 197bdcd8170SKalle Valo 198bdcd8170SKalle Valo /* 199bdcd8170SKalle Valo * Hit each byte of the register address with a 4-byte 200bdcd8170SKalle Valo * write operation to the same address, this is a harmless 201bdcd8170SKalle Valo * operation. 202bdcd8170SKalle Valo */ 203b142b914SVasanthakumar Thiagarajan status = hif_read_write_sync(ar, reg_addr + i, (u8 *)&addr_val, 204bdcd8170SKalle Valo 4, HIF_WR_SYNC_BYTE_FIX); 205bdcd8170SKalle Valo if (status) 206bdcd8170SKalle Valo break; 207bdcd8170SKalle Valo } 208bdcd8170SKalle Valo 209bdcd8170SKalle Valo if (status) { 210bdcd8170SKalle Valo ath6kl_err("failed to write initial bytes of 0x%x to window reg: 0x%X\n", 211bdcd8170SKalle Valo addr, reg_addr); 212bdcd8170SKalle Valo return status; 213bdcd8170SKalle Valo } 214bdcd8170SKalle Valo 215bdcd8170SKalle Valo /* 216bdcd8170SKalle Valo * Write the address register again, this time write the whole 217bdcd8170SKalle Valo * 4-byte value. The effect here is that the LSB write causes the 218bdcd8170SKalle Valo * cycle to start, the extra 3 byte write to bytes 1,2,3 has no 219bdcd8170SKalle Valo * effect since we are writing the same values again 220bdcd8170SKalle Valo */ 221b142b914SVasanthakumar Thiagarajan addr_val = cpu_to_le32(addr); 222b142b914SVasanthakumar Thiagarajan status = hif_read_write_sync(ar, reg_addr, 223b142b914SVasanthakumar Thiagarajan (u8 *)&(addr_val), 224bdcd8170SKalle Valo 4, HIF_WR_SYNC_BYTE_INC); 225bdcd8170SKalle Valo 226bdcd8170SKalle Valo if (status) { 227bdcd8170SKalle Valo ath6kl_err("failed to write 0x%x to window reg: 0x%X\n", 228bdcd8170SKalle Valo addr, reg_addr); 229bdcd8170SKalle Valo return status; 230bdcd8170SKalle Valo } 231bdcd8170SKalle Valo 232bdcd8170SKalle Valo return 0; 233bdcd8170SKalle Valo } 234bdcd8170SKalle Valo 235bdcd8170SKalle Valo /* 236addb44beSKalle Valo * Read from the hardware through its diagnostic window. No cooperation 237addb44beSKalle Valo * from the firmware is required for this. 238bdcd8170SKalle Valo */ 239addb44beSKalle Valo int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value) 240bdcd8170SKalle Valo { 241addb44beSKalle Valo int ret; 242bdcd8170SKalle Valo 243bdcd8170SKalle Valo /* set window register to start read cycle */ 244addb44beSKalle Valo ret = ath6kl_set_addrwin_reg(ar, WINDOW_READ_ADDR_ADDRESS, address); 245addb44beSKalle Valo if (ret) 246addb44beSKalle Valo return ret; 247bdcd8170SKalle Valo 248bdcd8170SKalle Valo /* read the data */ 249addb44beSKalle Valo ret = hif_read_write_sync(ar, WINDOW_DATA_ADDRESS, (u8 *) value, 250addb44beSKalle Valo sizeof(*value), HIF_RD_SYNC_BYTE_INC); 251addb44beSKalle Valo if (ret) { 252addb44beSKalle Valo ath6kl_warn("failed to read32 through diagnose window: %d\n", 253addb44beSKalle Valo ret); 254addb44beSKalle Valo return ret; 255bdcd8170SKalle Valo } 256bdcd8170SKalle Valo 257addb44beSKalle Valo return 0; 258bdcd8170SKalle Valo } 259bdcd8170SKalle Valo 260bdcd8170SKalle Valo /* 261bdcd8170SKalle Valo * Write to the ATH6KL through its diagnostic window. No cooperation from 262bdcd8170SKalle Valo * the Target is required for this. 263bdcd8170SKalle Valo */ 264f9ea0753SVasanthakumar Thiagarajan int ath6kl_diag_write32(struct ath6kl *ar, u32 address, __le32 value) 265bdcd8170SKalle Valo { 266addb44beSKalle Valo int ret; 267bdcd8170SKalle Valo 268bdcd8170SKalle Valo /* set write data */ 269addb44beSKalle Valo ret = hif_read_write_sync(ar, WINDOW_DATA_ADDRESS, (u8 *) &value, 270addb44beSKalle Valo sizeof(value), HIF_WR_SYNC_BYTE_INC); 271addb44beSKalle Valo if (ret) { 272addb44beSKalle Valo ath6kl_err("failed to write 0x%x during diagnose window to 0x%d\n", 273addb44beSKalle Valo address, value); 274addb44beSKalle Valo return ret; 275bdcd8170SKalle Valo } 276bdcd8170SKalle Valo 277bdcd8170SKalle Valo /* set window register, which starts the write cycle */ 278bdcd8170SKalle Valo return ath6kl_set_addrwin_reg(ar, WINDOW_WRITE_ADDR_ADDRESS, 279addb44beSKalle Valo address); 280bdcd8170SKalle Valo } 281bdcd8170SKalle Valo 282addb44beSKalle Valo int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length) 283bdcd8170SKalle Valo { 284addb44beSKalle Valo u32 count, *buf = data; 285addb44beSKalle Valo int ret; 286bdcd8170SKalle Valo 287addb44beSKalle Valo if (WARN_ON(length % 4)) 288addb44beSKalle Valo return -EINVAL; 289addb44beSKalle Valo 290addb44beSKalle Valo for (count = 0; count < length / 4; count++, address += 4) { 291addb44beSKalle Valo ret = ath6kl_diag_read32(ar, address, &buf[count]); 292addb44beSKalle Valo if (ret) 293addb44beSKalle Valo return ret; 294bdcd8170SKalle Valo } 295bdcd8170SKalle Valo 296addb44beSKalle Valo return 0; 297addb44beSKalle Valo } 298addb44beSKalle Valo 299addb44beSKalle Valo int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length) 300addb44beSKalle Valo { 301f9ea0753SVasanthakumar Thiagarajan u32 count; 302f9ea0753SVasanthakumar Thiagarajan __le32 *buf = data; 303addb44beSKalle Valo int ret; 304addb44beSKalle Valo 305addb44beSKalle Valo if (WARN_ON(length % 4)) 306addb44beSKalle Valo return -EINVAL; 307addb44beSKalle Valo 308addb44beSKalle Valo for (count = 0; count < length / 4; count++, address += 4) { 309addb44beSKalle Valo ret = ath6kl_diag_write32(ar, address, buf[count]); 310addb44beSKalle Valo if (ret) 311addb44beSKalle Valo return ret; 312addb44beSKalle Valo } 313addb44beSKalle Valo 314addb44beSKalle Valo return 0; 315bdcd8170SKalle Valo } 316bdcd8170SKalle Valo 317bc07ddb2SKalle Valo int ath6kl_read_fwlogs(struct ath6kl *ar) 318bc07ddb2SKalle Valo { 319bc07ddb2SKalle Valo struct ath6kl_dbglog_hdr debug_hdr; 320bc07ddb2SKalle Valo struct ath6kl_dbglog_buf debug_buf; 321bc07ddb2SKalle Valo u32 address, length, dropped, firstbuf, debug_hdr_addr; 322bc07ddb2SKalle Valo int ret = 0, loop; 323bc07ddb2SKalle Valo u8 *buf; 324bc07ddb2SKalle Valo 325bc07ddb2SKalle Valo buf = kmalloc(ATH6KL_FWLOG_PAYLOAD_SIZE, GFP_KERNEL); 326bc07ddb2SKalle Valo if (!buf) 327bc07ddb2SKalle Valo return -ENOMEM; 328bc07ddb2SKalle Valo 329bc07ddb2SKalle Valo address = TARG_VTOP(ar->target_type, 330bc07ddb2SKalle Valo ath6kl_get_hi_item_addr(ar, 331bc07ddb2SKalle Valo HI_ITEM(hi_dbglog_hdr))); 332bc07ddb2SKalle Valo 333bc07ddb2SKalle Valo ret = ath6kl_diag_read32(ar, address, &debug_hdr_addr); 334bc07ddb2SKalle Valo if (ret) 335bc07ddb2SKalle Valo goto out; 336bc07ddb2SKalle Valo 337bc07ddb2SKalle Valo /* Get the contents of the ring buffer */ 338bc07ddb2SKalle Valo if (debug_hdr_addr == 0) { 339bc07ddb2SKalle Valo ath6kl_warn("Invalid address for debug_hdr_addr\n"); 340bc07ddb2SKalle Valo ret = -EINVAL; 341bc07ddb2SKalle Valo goto out; 342bc07ddb2SKalle Valo } 343bc07ddb2SKalle Valo 344bc07ddb2SKalle Valo address = TARG_VTOP(ar->target_type, debug_hdr_addr); 345bc07ddb2SKalle Valo ath6kl_diag_read(ar, address, &debug_hdr, sizeof(debug_hdr)); 346bc07ddb2SKalle Valo 347bc07ddb2SKalle Valo address = TARG_VTOP(ar->target_type, 348bc07ddb2SKalle Valo le32_to_cpu(debug_hdr.dbuf_addr)); 349bc07ddb2SKalle Valo firstbuf = address; 350bc07ddb2SKalle Valo dropped = le32_to_cpu(debug_hdr.dropped); 351bc07ddb2SKalle Valo ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf)); 352bc07ddb2SKalle Valo 353bc07ddb2SKalle Valo loop = 100; 354bc07ddb2SKalle Valo 355bc07ddb2SKalle Valo do { 356bc07ddb2SKalle Valo address = TARG_VTOP(ar->target_type, 357bc07ddb2SKalle Valo le32_to_cpu(debug_buf.buffer_addr)); 358bc07ddb2SKalle Valo length = le32_to_cpu(debug_buf.length); 359bc07ddb2SKalle Valo 360bc07ddb2SKalle Valo if (length != 0 && (le32_to_cpu(debug_buf.length) <= 361bc07ddb2SKalle Valo le32_to_cpu(debug_buf.bufsize))) { 362bc07ddb2SKalle Valo length = ALIGN(length, 4); 363bc07ddb2SKalle Valo 364bc07ddb2SKalle Valo ret = ath6kl_diag_read(ar, address, 365bc07ddb2SKalle Valo buf, length); 366bc07ddb2SKalle Valo if (ret) 367bc07ddb2SKalle Valo goto out; 368bc07ddb2SKalle Valo 369bc07ddb2SKalle Valo ath6kl_debug_fwlog_event(ar, buf, length); 370bc07ddb2SKalle Valo } 371bc07ddb2SKalle Valo 372bc07ddb2SKalle Valo address = TARG_VTOP(ar->target_type, 373bc07ddb2SKalle Valo le32_to_cpu(debug_buf.next)); 374bc07ddb2SKalle Valo ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf)); 375bc07ddb2SKalle Valo if (ret) 376bc07ddb2SKalle Valo goto out; 377bc07ddb2SKalle Valo 378bc07ddb2SKalle Valo loop--; 379bc07ddb2SKalle Valo 380bc07ddb2SKalle Valo if (WARN_ON(loop == 0)) { 381bc07ddb2SKalle Valo ret = -ETIMEDOUT; 382bc07ddb2SKalle Valo goto out; 383bc07ddb2SKalle Valo } 384bc07ddb2SKalle Valo } while (address != firstbuf); 385bc07ddb2SKalle Valo 386bc07ddb2SKalle Valo out: 387bc07ddb2SKalle Valo kfree(buf); 388bc07ddb2SKalle Valo 389bc07ddb2SKalle Valo return ret; 390bc07ddb2SKalle Valo } 391bc07ddb2SKalle Valo 39231024d99SKevin Fang /* FIXME: move to a better place, target.h? */ 39331024d99SKevin Fang #define AR6003_RESET_CONTROL_ADDRESS 0x00004000 39431024d99SKevin Fang #define AR6004_RESET_CONTROL_ADDRESS 0x00004000 39531024d99SKevin Fang 396bdcd8170SKalle Valo static void ath6kl_reset_device(struct ath6kl *ar, u32 target_type, 397bdcd8170SKalle Valo bool wait_fot_compltn, bool cold_reset) 398bdcd8170SKalle Valo { 399bdcd8170SKalle Valo int status = 0; 400bdcd8170SKalle Valo u32 address; 401f9ea0753SVasanthakumar Thiagarajan __le32 data; 402bdcd8170SKalle Valo 40331024d99SKevin Fang if (target_type != TARGET_TYPE_AR6003 && 40431024d99SKevin Fang target_type != TARGET_TYPE_AR6004) 405bdcd8170SKalle Valo return; 406bdcd8170SKalle Valo 407f9ea0753SVasanthakumar Thiagarajan data = cold_reset ? cpu_to_le32(RESET_CONTROL_COLD_RST) : 408f9ea0753SVasanthakumar Thiagarajan cpu_to_le32(RESET_CONTROL_MBOX_RST); 409bdcd8170SKalle Valo 41031024d99SKevin Fang switch (target_type) { 41131024d99SKevin Fang case TARGET_TYPE_AR6003: 41231024d99SKevin Fang address = AR6003_RESET_CONTROL_ADDRESS; 41331024d99SKevin Fang break; 41431024d99SKevin Fang case TARGET_TYPE_AR6004: 41531024d99SKevin Fang address = AR6004_RESET_CONTROL_ADDRESS; 41631024d99SKevin Fang break; 41731024d99SKevin Fang default: 41831024d99SKevin Fang address = AR6003_RESET_CONTROL_ADDRESS; 41931024d99SKevin Fang break; 42031024d99SKevin Fang } 42131024d99SKevin Fang 422addb44beSKalle Valo status = ath6kl_diag_write32(ar, address, data); 423bdcd8170SKalle Valo 424bdcd8170SKalle Valo if (status) 425bdcd8170SKalle Valo ath6kl_err("failed to reset target\n"); 426bdcd8170SKalle Valo } 427bdcd8170SKalle Valo 428bdcd8170SKalle Valo void ath6kl_stop_endpoint(struct net_device *dev, bool keep_profile, 429bdcd8170SKalle Valo bool get_dbglogs) 430bdcd8170SKalle Valo { 431bdcd8170SKalle Valo struct ath6kl *ar = ath6kl_priv(dev); 432bdcd8170SKalle Valo static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 433bdcd8170SKalle Valo bool discon_issued; 434bdcd8170SKalle Valo 435bdcd8170SKalle Valo netif_stop_queue(dev); 436bdcd8170SKalle Valo 437bdcd8170SKalle Valo /* disable the target and the interrupts associated with it */ 438bdcd8170SKalle Valo if (test_bit(WMI_READY, &ar->flag)) { 439bdcd8170SKalle Valo discon_issued = (test_bit(CONNECTED, &ar->flag) || 440bdcd8170SKalle Valo test_bit(CONNECT_PEND, &ar->flag)); 441bdcd8170SKalle Valo ath6kl_disconnect(ar); 442bdcd8170SKalle Valo if (!keep_profile) 443bdcd8170SKalle Valo ath6kl_init_profile_info(ar); 444bdcd8170SKalle Valo 445bdcd8170SKalle Valo del_timer(&ar->disconnect_timer); 446bdcd8170SKalle Valo 447bdcd8170SKalle Valo clear_bit(WMI_READY, &ar->flag); 448bdcd8170SKalle Valo ath6kl_wmi_shutdown(ar->wmi); 449bdcd8170SKalle Valo clear_bit(WMI_ENABLED, &ar->flag); 450bdcd8170SKalle Valo ar->wmi = NULL; 451bdcd8170SKalle Valo 452bdcd8170SKalle Valo /* 453bdcd8170SKalle Valo * After wmi_shudown all WMI events will be dropped. We 454bdcd8170SKalle Valo * need to cleanup the buffers allocated in AP mode and 455bdcd8170SKalle Valo * give disconnect notification to stack, which usually 456bdcd8170SKalle Valo * happens in the disconnect_event. Simulate the disconnect 457bdcd8170SKalle Valo * event by calling the function directly. Sometimes 458bdcd8170SKalle Valo * disconnect_event will be received when the debug logs 459bdcd8170SKalle Valo * are collected. 460bdcd8170SKalle Valo */ 461bdcd8170SKalle Valo if (discon_issued) 462bdcd8170SKalle Valo ath6kl_disconnect_event(ar, DISCONNECT_CMD, 463bdcd8170SKalle Valo (ar->nw_type & AP_NETWORK) ? 464bdcd8170SKalle Valo bcast_mac : ar->bssid, 465bdcd8170SKalle Valo 0, NULL, 0); 466bdcd8170SKalle Valo 467bdcd8170SKalle Valo ar->user_key_ctrl = 0; 468bdcd8170SKalle Valo 469bdcd8170SKalle Valo } else { 470bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, 471bdcd8170SKalle Valo "%s: wmi is not ready 0x%p 0x%p\n", 472bdcd8170SKalle Valo __func__, ar, ar->wmi); 473bdcd8170SKalle Valo 474bdcd8170SKalle Valo /* Shut down WMI if we have started it */ 475bdcd8170SKalle Valo if (test_bit(WMI_ENABLED, &ar->flag)) { 476bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, 477bdcd8170SKalle Valo "%s: shut down wmi\n", __func__); 478bdcd8170SKalle Valo ath6kl_wmi_shutdown(ar->wmi); 479bdcd8170SKalle Valo clear_bit(WMI_ENABLED, &ar->flag); 480bdcd8170SKalle Valo ar->wmi = NULL; 481bdcd8170SKalle Valo } 482bdcd8170SKalle Valo } 483bdcd8170SKalle Valo 484bdcd8170SKalle Valo if (ar->htc_target) { 485bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, "%s: shut down htc\n", __func__); 486ad226ec2SKalle Valo ath6kl_htc_stop(ar->htc_target); 487bdcd8170SKalle Valo } 488bdcd8170SKalle Valo 489bdcd8170SKalle Valo /* 490bdcd8170SKalle Valo * Try to reset the device if we can. The driver may have been 491bdcd8170SKalle Valo * configure NOT to reset the target during a debug session. 492bdcd8170SKalle Valo */ 493bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, 494bdcd8170SKalle Valo "attempting to reset target on instance destroy\n"); 495bdcd8170SKalle Valo ath6kl_reset_device(ar, ar->target_type, true, true); 496bdcd8170SKalle Valo } 497bdcd8170SKalle Valo 498bdcd8170SKalle Valo static void ath6kl_install_static_wep_keys(struct ath6kl *ar) 499bdcd8170SKalle Valo { 500bdcd8170SKalle Valo u8 index; 501bdcd8170SKalle Valo u8 keyusage; 502bdcd8170SKalle Valo 503bdcd8170SKalle Valo for (index = WMI_MIN_KEY_INDEX; index <= WMI_MAX_KEY_INDEX; index++) { 504bdcd8170SKalle Valo if (ar->wep_key_list[index].key_len) { 505bdcd8170SKalle Valo keyusage = GROUP_USAGE; 506bdcd8170SKalle Valo if (index == ar->def_txkey_index) 507bdcd8170SKalle Valo keyusage |= TX_USAGE; 508bdcd8170SKalle Valo 509bdcd8170SKalle Valo ath6kl_wmi_addkey_cmd(ar->wmi, 510bdcd8170SKalle Valo index, 511bdcd8170SKalle Valo WEP_CRYPT, 512bdcd8170SKalle Valo keyusage, 513bdcd8170SKalle Valo ar->wep_key_list[index].key_len, 514bdcd8170SKalle Valo NULL, 515bdcd8170SKalle Valo ar->wep_key_list[index].key, 516bdcd8170SKalle Valo KEY_OP_INIT_VAL, NULL, 517bdcd8170SKalle Valo NO_SYNC_WMIFLAG); 518bdcd8170SKalle Valo } 519bdcd8170SKalle Valo } 520bdcd8170SKalle Valo } 521bdcd8170SKalle Valo 522572e27c0SJouni Malinen void ath6kl_connect_ap_mode_bss(struct ath6kl *ar, u16 channel) 523bdcd8170SKalle Valo { 524bdcd8170SKalle Valo struct ath6kl_req_key *ik; 5259a5b1318SJouni Malinen int res; 5269a5b1318SJouni Malinen u8 key_rsc[ATH6KL_KEY_SEQ_LEN]; 527bdcd8170SKalle Valo 528bdcd8170SKalle Valo ik = &ar->ap_mode_bkey; 529bdcd8170SKalle Valo 530572e27c0SJouni Malinen ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "AP mode started on %u MHz\n", channel); 5319a5b1318SJouni Malinen 532bdcd8170SKalle Valo switch (ar->auth_mode) { 533bdcd8170SKalle Valo case NONE_AUTH: 534bdcd8170SKalle Valo if (ar->prwise_crypto == WEP_CRYPT) 535bdcd8170SKalle Valo ath6kl_install_static_wep_keys(ar); 536bdcd8170SKalle Valo break; 537bdcd8170SKalle Valo case WPA_PSK_AUTH: 538bdcd8170SKalle Valo case WPA2_PSK_AUTH: 539bdcd8170SKalle Valo case (WPA_PSK_AUTH | WPA2_PSK_AUTH): 5409a5b1318SJouni Malinen if (!ik->valid) 541bdcd8170SKalle Valo break; 5429a5b1318SJouni Malinen 5439a5b1318SJouni Malinen ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed addkey for " 5449a5b1318SJouni Malinen "the initial group key for AP mode\n"); 5459a5b1318SJouni Malinen memset(key_rsc, 0, sizeof(key_rsc)); 5469a5b1318SJouni Malinen res = ath6kl_wmi_addkey_cmd( 5479a5b1318SJouni Malinen ar->wmi, ik->key_index, ik->key_type, 5489a5b1318SJouni Malinen GROUP_USAGE, ik->key_len, key_rsc, ik->key, 5499a5b1318SJouni Malinen KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG); 5509a5b1318SJouni Malinen if (res) { 5519a5b1318SJouni Malinen ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed " 5529a5b1318SJouni Malinen "addkey failed: %d\n", res); 553bdcd8170SKalle Valo } 554bdcd8170SKalle Valo break; 555bdcd8170SKalle Valo } 5569a5b1318SJouni Malinen 5579a5b1318SJouni Malinen ath6kl_wmi_bssfilter_cmd(ar->wmi, NONE_BSS_FILTER, 0); 558bdcd8170SKalle Valo set_bit(CONNECTED, &ar->flag); 5599a5b1318SJouni Malinen netif_carrier_on(ar->net_dev); 560bdcd8170SKalle Valo } 561bdcd8170SKalle Valo 562572e27c0SJouni Malinen void ath6kl_connect_ap_mode_sta(struct ath6kl *ar, u16 aid, u8 *mac_addr, 563572e27c0SJouni Malinen u8 keymgmt, u8 ucipher, u8 auth, 564572e27c0SJouni Malinen u8 assoc_req_len, u8 *assoc_info) 565572e27c0SJouni Malinen { 566572e27c0SJouni Malinen u8 *ies = NULL, *wpa_ie = NULL, *pos; 567572e27c0SJouni Malinen size_t ies_len = 0; 568572e27c0SJouni Malinen struct station_info sinfo; 569572e27c0SJouni Malinen 570572e27c0SJouni Malinen ath6kl_dbg(ATH6KL_DBG_TRC, "new station %pM aid=%d\n", mac_addr, aid); 571bdcd8170SKalle Valo 5723c774bbaSJouni Malinen if (assoc_req_len > sizeof(struct ieee80211_hdr_3addr)) { 5733c774bbaSJouni Malinen struct ieee80211_mgmt *mgmt = 5743c774bbaSJouni Malinen (struct ieee80211_mgmt *) assoc_info; 5753c774bbaSJouni Malinen if (ieee80211_is_assoc_req(mgmt->frame_control) && 5763c774bbaSJouni Malinen assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) + 5773c774bbaSJouni Malinen sizeof(mgmt->u.assoc_req)) { 5783c774bbaSJouni Malinen ies = mgmt->u.assoc_req.variable; 5793c774bbaSJouni Malinen ies_len = assoc_info + assoc_req_len - ies; 5803c774bbaSJouni Malinen } else if (ieee80211_is_reassoc_req(mgmt->frame_control) && 5813c774bbaSJouni Malinen assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) 5823c774bbaSJouni Malinen + sizeof(mgmt->u.reassoc_req)) { 5833c774bbaSJouni Malinen ies = mgmt->u.reassoc_req.variable; 5843c774bbaSJouni Malinen ies_len = assoc_info + assoc_req_len - ies; 5853c774bbaSJouni Malinen } 5863c774bbaSJouni Malinen } 5873c774bbaSJouni Malinen 5883c774bbaSJouni Malinen pos = ies; 5893c774bbaSJouni Malinen while (pos && pos + 1 < ies + ies_len) { 5903c774bbaSJouni Malinen if (pos + 2 + pos[1] > ies + ies_len) 5913c774bbaSJouni Malinen break; 5923c774bbaSJouni Malinen if (pos[0] == WLAN_EID_RSN) 5933c774bbaSJouni Malinen wpa_ie = pos; /* RSN IE */ 5943c774bbaSJouni Malinen else if (pos[0] == WLAN_EID_VENDOR_SPECIFIC && 5953c774bbaSJouni Malinen pos[1] >= 4 && 5963c774bbaSJouni Malinen pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2) { 5973c774bbaSJouni Malinen if (pos[5] == 0x01) 5983c774bbaSJouni Malinen wpa_ie = pos; /* WPA IE */ 5993c774bbaSJouni Malinen else if (pos[5] == 0x04) { 6003c774bbaSJouni Malinen wpa_ie = pos; /* WPS IE */ 6013c774bbaSJouni Malinen break; /* overrides WPA/RSN IE */ 6023c774bbaSJouni Malinen } 6033c774bbaSJouni Malinen } 6043c774bbaSJouni Malinen pos += 2 + pos[1]; 6053c774bbaSJouni Malinen } 6063c774bbaSJouni Malinen 607572e27c0SJouni Malinen ath6kl_add_new_sta(ar, mac_addr, aid, wpa_ie, 6083c774bbaSJouni Malinen wpa_ie ? 2 + wpa_ie[1] : 0, 609572e27c0SJouni Malinen keymgmt, ucipher, auth); 610bdcd8170SKalle Valo 611bdcd8170SKalle Valo /* send event to application */ 612bdcd8170SKalle Valo memset(&sinfo, 0, sizeof(sinfo)); 613bdcd8170SKalle Valo 614bdcd8170SKalle Valo /* TODO: sinfo.generation */ 6153c774bbaSJouni Malinen 6163c774bbaSJouni Malinen sinfo.assoc_req_ies = ies; 6173c774bbaSJouni Malinen sinfo.assoc_req_ies_len = ies_len; 6183c774bbaSJouni Malinen sinfo.filled |= STATION_INFO_ASSOC_REQ_IES; 6193c774bbaSJouni Malinen 620572e27c0SJouni Malinen cfg80211_new_sta(ar->net_dev, mac_addr, &sinfo, GFP_KERNEL); 621bdcd8170SKalle Valo 622bdcd8170SKalle Valo netif_wake_queue(ar->net_dev); 623bdcd8170SKalle Valo } 624bdcd8170SKalle Valo 625bdcd8170SKalle Valo /* Functions for Tx credit handling */ 626bdcd8170SKalle Valo void ath6k_credit_init(struct htc_credit_state_info *cred_info, 627bdcd8170SKalle Valo struct list_head *ep_list, 628bdcd8170SKalle Valo int tot_credits) 629bdcd8170SKalle Valo { 630bdcd8170SKalle Valo struct htc_endpoint_credit_dist *cur_ep_dist; 631bdcd8170SKalle Valo int count; 632bdcd8170SKalle Valo 633bdcd8170SKalle Valo cred_info->cur_free_credits = tot_credits; 634bdcd8170SKalle Valo cred_info->total_avail_credits = tot_credits; 635bdcd8170SKalle Valo 636bdcd8170SKalle Valo list_for_each_entry(cur_ep_dist, ep_list, list) { 637bdcd8170SKalle Valo if (cur_ep_dist->endpoint == ENDPOINT_0) 638bdcd8170SKalle Valo continue; 639bdcd8170SKalle Valo 640bdcd8170SKalle Valo cur_ep_dist->cred_min = cur_ep_dist->cred_per_msg; 641bdcd8170SKalle Valo 642bdcd8170SKalle Valo if (tot_credits > 4) 643bdcd8170SKalle Valo if ((cur_ep_dist->svc_id == WMI_DATA_BK_SVC) || 644bdcd8170SKalle Valo (cur_ep_dist->svc_id == WMI_DATA_BE_SVC)) { 645bdcd8170SKalle Valo ath6kl_deposit_credit_to_ep(cred_info, 646bdcd8170SKalle Valo cur_ep_dist, 647bdcd8170SKalle Valo cur_ep_dist->cred_min); 648bdcd8170SKalle Valo cur_ep_dist->dist_flags |= HTC_EP_ACTIVE; 649bdcd8170SKalle Valo } 650bdcd8170SKalle Valo 651bdcd8170SKalle Valo if (cur_ep_dist->svc_id == WMI_CONTROL_SVC) { 652bdcd8170SKalle Valo ath6kl_deposit_credit_to_ep(cred_info, cur_ep_dist, 653bdcd8170SKalle Valo cur_ep_dist->cred_min); 654bdcd8170SKalle Valo /* 655bdcd8170SKalle Valo * Control service is always marked active, it 656bdcd8170SKalle Valo * never goes inactive EVER. 657bdcd8170SKalle Valo */ 658bdcd8170SKalle Valo cur_ep_dist->dist_flags |= HTC_EP_ACTIVE; 659bdcd8170SKalle Valo } else if (cur_ep_dist->svc_id == WMI_DATA_BK_SVC) 660bdcd8170SKalle Valo /* this is the lowest priority data endpoint */ 661bdcd8170SKalle Valo cred_info->lowestpri_ep_dist = cur_ep_dist->list; 662bdcd8170SKalle Valo 663bdcd8170SKalle Valo /* 664bdcd8170SKalle Valo * Streams have to be created (explicit | implicit) for all 665bdcd8170SKalle Valo * kinds of traffic. BE endpoints are also inactive in the 666bdcd8170SKalle Valo * beginning. When BE traffic starts it creates implicit 667bdcd8170SKalle Valo * streams that redistributes credits. 668bdcd8170SKalle Valo * 669bdcd8170SKalle Valo * Note: all other endpoints have minimums set but are 670bdcd8170SKalle Valo * initially given NO credits. credits will be distributed 671bdcd8170SKalle Valo * as traffic activity demands 672bdcd8170SKalle Valo */ 673bdcd8170SKalle Valo } 674bdcd8170SKalle Valo 675bdcd8170SKalle Valo WARN_ON(cred_info->cur_free_credits <= 0); 676bdcd8170SKalle Valo 677bdcd8170SKalle Valo list_for_each_entry(cur_ep_dist, ep_list, list) { 678bdcd8170SKalle Valo if (cur_ep_dist->endpoint == ENDPOINT_0) 679bdcd8170SKalle Valo continue; 680bdcd8170SKalle Valo 681bdcd8170SKalle Valo if (cur_ep_dist->svc_id == WMI_CONTROL_SVC) 682bdcd8170SKalle Valo cur_ep_dist->cred_norm = cur_ep_dist->cred_per_msg; 683bdcd8170SKalle Valo else { 684bdcd8170SKalle Valo /* 685bdcd8170SKalle Valo * For the remaining data endpoints, we assume that 686bdcd8170SKalle Valo * each cred_per_msg are the same. We use a simple 687bdcd8170SKalle Valo * calculation here, we take the remaining credits 688bdcd8170SKalle Valo * and determine how many max messages this can 689bdcd8170SKalle Valo * cover and then set each endpoint's normal value 690bdcd8170SKalle Valo * equal to 3/4 this amount. 691bdcd8170SKalle Valo */ 692bdcd8170SKalle Valo count = (cred_info->cur_free_credits / 693bdcd8170SKalle Valo cur_ep_dist->cred_per_msg) 694bdcd8170SKalle Valo * cur_ep_dist->cred_per_msg; 695bdcd8170SKalle Valo count = (count * 3) >> 2; 696bdcd8170SKalle Valo count = max(count, cur_ep_dist->cred_per_msg); 697bdcd8170SKalle Valo cur_ep_dist->cred_norm = count; 698bdcd8170SKalle Valo 699bdcd8170SKalle Valo } 700bdcd8170SKalle Valo } 701bdcd8170SKalle Valo } 702bdcd8170SKalle Valo 703bdcd8170SKalle Valo /* initialize and setup credit distribution */ 704bdcd8170SKalle Valo int ath6k_setup_credit_dist(void *htc_handle, 705bdcd8170SKalle Valo struct htc_credit_state_info *cred_info) 706bdcd8170SKalle Valo { 707bdcd8170SKalle Valo u16 servicepriority[5]; 708bdcd8170SKalle Valo 709bdcd8170SKalle Valo memset(cred_info, 0, sizeof(struct htc_credit_state_info)); 710bdcd8170SKalle Valo 711bdcd8170SKalle Valo servicepriority[0] = WMI_CONTROL_SVC; /* highest */ 712bdcd8170SKalle Valo servicepriority[1] = WMI_DATA_VO_SVC; 713bdcd8170SKalle Valo servicepriority[2] = WMI_DATA_VI_SVC; 714bdcd8170SKalle Valo servicepriority[3] = WMI_DATA_BE_SVC; 715bdcd8170SKalle Valo servicepriority[4] = WMI_DATA_BK_SVC; /* lowest */ 716bdcd8170SKalle Valo 717bdcd8170SKalle Valo /* set priority list */ 718ad226ec2SKalle Valo ath6kl_htc_set_credit_dist(htc_handle, cred_info, servicepriority, 5); 719bdcd8170SKalle Valo 720bdcd8170SKalle Valo return 0; 721bdcd8170SKalle Valo } 722bdcd8170SKalle Valo 723bdcd8170SKalle Valo /* reduce an ep's credits back to a set limit */ 724bdcd8170SKalle Valo static void ath6k_reduce_credits(struct htc_credit_state_info *cred_info, 725bdcd8170SKalle Valo struct htc_endpoint_credit_dist *ep_dist, 726bdcd8170SKalle Valo int limit) 727bdcd8170SKalle Valo { 728bdcd8170SKalle Valo int credits; 729bdcd8170SKalle Valo 730bdcd8170SKalle Valo ep_dist->cred_assngd = limit; 731bdcd8170SKalle Valo 732bdcd8170SKalle Valo if (ep_dist->credits <= limit) 733bdcd8170SKalle Valo return; 734bdcd8170SKalle Valo 735bdcd8170SKalle Valo credits = ep_dist->credits - limit; 736bdcd8170SKalle Valo ep_dist->credits -= credits; 737bdcd8170SKalle Valo cred_info->cur_free_credits += credits; 738bdcd8170SKalle Valo } 739bdcd8170SKalle Valo 740bdcd8170SKalle Valo static void ath6k_credit_update(struct htc_credit_state_info *cred_info, 741bdcd8170SKalle Valo struct list_head *epdist_list) 742bdcd8170SKalle Valo { 743bdcd8170SKalle Valo struct htc_endpoint_credit_dist *cur_dist_list; 744bdcd8170SKalle Valo 745bdcd8170SKalle Valo list_for_each_entry(cur_dist_list, epdist_list, list) { 746bdcd8170SKalle Valo if (cur_dist_list->endpoint == ENDPOINT_0) 747bdcd8170SKalle Valo continue; 748bdcd8170SKalle Valo 749bdcd8170SKalle Valo if (cur_dist_list->cred_to_dist > 0) { 750bdcd8170SKalle Valo cur_dist_list->credits += 751bdcd8170SKalle Valo cur_dist_list->cred_to_dist; 752bdcd8170SKalle Valo cur_dist_list->cred_to_dist = 0; 753bdcd8170SKalle Valo if (cur_dist_list->credits > 754bdcd8170SKalle Valo cur_dist_list->cred_assngd) 755bdcd8170SKalle Valo ath6k_reduce_credits(cred_info, 756bdcd8170SKalle Valo cur_dist_list, 757bdcd8170SKalle Valo cur_dist_list->cred_assngd); 758bdcd8170SKalle Valo 759bdcd8170SKalle Valo if (cur_dist_list->credits > 760bdcd8170SKalle Valo cur_dist_list->cred_norm) 761bdcd8170SKalle Valo ath6k_reduce_credits(cred_info, cur_dist_list, 762bdcd8170SKalle Valo cur_dist_list->cred_norm); 763bdcd8170SKalle Valo 764bdcd8170SKalle Valo if (!(cur_dist_list->dist_flags & HTC_EP_ACTIVE)) { 765bdcd8170SKalle Valo if (cur_dist_list->txq_depth == 0) 766bdcd8170SKalle Valo ath6k_reduce_credits(cred_info, 767bdcd8170SKalle Valo cur_dist_list, 0); 768bdcd8170SKalle Valo } 769bdcd8170SKalle Valo } 770bdcd8170SKalle Valo } 771bdcd8170SKalle Valo } 772bdcd8170SKalle Valo 773bdcd8170SKalle Valo /* 774bdcd8170SKalle Valo * HTC has an endpoint that needs credits, ep_dist is the endpoint in 775bdcd8170SKalle Valo * question. 776bdcd8170SKalle Valo */ 777bdcd8170SKalle Valo void ath6k_seek_credits(struct htc_credit_state_info *cred_info, 778bdcd8170SKalle Valo struct htc_endpoint_credit_dist *ep_dist) 779bdcd8170SKalle Valo { 780bdcd8170SKalle Valo struct htc_endpoint_credit_dist *curdist_list; 781bdcd8170SKalle Valo int credits = 0; 782bdcd8170SKalle Valo int need; 783bdcd8170SKalle Valo 784bdcd8170SKalle Valo if (ep_dist->svc_id == WMI_CONTROL_SVC) 785bdcd8170SKalle Valo goto out; 786bdcd8170SKalle Valo 787bdcd8170SKalle Valo if ((ep_dist->svc_id == WMI_DATA_VI_SVC) || 788bdcd8170SKalle Valo (ep_dist->svc_id == WMI_DATA_VO_SVC)) 789bdcd8170SKalle Valo if ((ep_dist->cred_assngd >= ep_dist->cred_norm)) 790bdcd8170SKalle Valo goto out; 791bdcd8170SKalle Valo 792bdcd8170SKalle Valo /* 793bdcd8170SKalle Valo * For all other services, we follow a simple algorithm of: 794bdcd8170SKalle Valo * 795bdcd8170SKalle Valo * 1. checking the free pool for credits 796bdcd8170SKalle Valo * 2. checking lower priority endpoints for credits to take 797bdcd8170SKalle Valo */ 798bdcd8170SKalle Valo 799bdcd8170SKalle Valo credits = min(cred_info->cur_free_credits, ep_dist->seek_cred); 800bdcd8170SKalle Valo 801bdcd8170SKalle Valo if (credits >= ep_dist->seek_cred) 802bdcd8170SKalle Valo goto out; 803bdcd8170SKalle Valo 804bdcd8170SKalle Valo /* 805bdcd8170SKalle Valo * We don't have enough in the free pool, try taking away from 806bdcd8170SKalle Valo * lower priority services The rule for taking away credits: 807bdcd8170SKalle Valo * 808bdcd8170SKalle Valo * 1. Only take from lower priority endpoints 809bdcd8170SKalle Valo * 2. Only take what is allocated above the minimum (never 810bdcd8170SKalle Valo * starve an endpoint completely) 811bdcd8170SKalle Valo * 3. Only take what you need. 812bdcd8170SKalle Valo */ 813bdcd8170SKalle Valo 814bdcd8170SKalle Valo list_for_each_entry_reverse(curdist_list, 815bdcd8170SKalle Valo &cred_info->lowestpri_ep_dist, 816bdcd8170SKalle Valo list) { 817bdcd8170SKalle Valo if (curdist_list == ep_dist) 818bdcd8170SKalle Valo break; 819bdcd8170SKalle Valo 820bdcd8170SKalle Valo need = ep_dist->seek_cred - cred_info->cur_free_credits; 821bdcd8170SKalle Valo 822bdcd8170SKalle Valo if ((curdist_list->cred_assngd - need) >= 823bdcd8170SKalle Valo curdist_list->cred_min) { 824bdcd8170SKalle Valo /* 825bdcd8170SKalle Valo * The current one has been allocated more than 826bdcd8170SKalle Valo * it's minimum and it has enough credits assigned 827bdcd8170SKalle Valo * above it's minimum to fulfill our need try to 828bdcd8170SKalle Valo * take away just enough to fulfill our need. 829bdcd8170SKalle Valo */ 830bdcd8170SKalle Valo ath6k_reduce_credits(cred_info, curdist_list, 831bdcd8170SKalle Valo curdist_list->cred_assngd - need); 832bdcd8170SKalle Valo 833bdcd8170SKalle Valo if (cred_info->cur_free_credits >= 834bdcd8170SKalle Valo ep_dist->seek_cred) 835bdcd8170SKalle Valo break; 836bdcd8170SKalle Valo } 837bdcd8170SKalle Valo 838bdcd8170SKalle Valo if (curdist_list->endpoint == ENDPOINT_0) 839bdcd8170SKalle Valo break; 840bdcd8170SKalle Valo } 841bdcd8170SKalle Valo 842bdcd8170SKalle Valo credits = min(cred_info->cur_free_credits, ep_dist->seek_cred); 843bdcd8170SKalle Valo 844bdcd8170SKalle Valo out: 845bdcd8170SKalle Valo /* did we find some credits? */ 846bdcd8170SKalle Valo if (credits) 847bdcd8170SKalle Valo ath6kl_deposit_credit_to_ep(cred_info, ep_dist, credits); 848bdcd8170SKalle Valo 849bdcd8170SKalle Valo ep_dist->seek_cred = 0; 850bdcd8170SKalle Valo } 851bdcd8170SKalle Valo 852bdcd8170SKalle Valo /* redistribute credits based on activity change */ 853bdcd8170SKalle Valo static void ath6k_redistribute_credits(struct htc_credit_state_info *info, 854bdcd8170SKalle Valo struct list_head *ep_dist_list) 855bdcd8170SKalle Valo { 856bdcd8170SKalle Valo struct htc_endpoint_credit_dist *curdist_list; 857bdcd8170SKalle Valo 858bdcd8170SKalle Valo list_for_each_entry(curdist_list, ep_dist_list, list) { 859bdcd8170SKalle Valo if (curdist_list->endpoint == ENDPOINT_0) 860bdcd8170SKalle Valo continue; 861bdcd8170SKalle Valo 862bdcd8170SKalle Valo if ((curdist_list->svc_id == WMI_DATA_BK_SVC) || 863bdcd8170SKalle Valo (curdist_list->svc_id == WMI_DATA_BE_SVC)) 864bdcd8170SKalle Valo curdist_list->dist_flags |= HTC_EP_ACTIVE; 865bdcd8170SKalle Valo 866bdcd8170SKalle Valo if ((curdist_list->svc_id != WMI_CONTROL_SVC) && 867bdcd8170SKalle Valo !(curdist_list->dist_flags & HTC_EP_ACTIVE)) { 868bdcd8170SKalle Valo if (curdist_list->txq_depth == 0) 869bdcd8170SKalle Valo ath6k_reduce_credits(info, 870bdcd8170SKalle Valo curdist_list, 0); 871bdcd8170SKalle Valo else 872bdcd8170SKalle Valo ath6k_reduce_credits(info, 873bdcd8170SKalle Valo curdist_list, 874bdcd8170SKalle Valo curdist_list->cred_min); 875bdcd8170SKalle Valo } 876bdcd8170SKalle Valo } 877bdcd8170SKalle Valo } 878bdcd8170SKalle Valo 879bdcd8170SKalle Valo /* 880bdcd8170SKalle Valo * 881bdcd8170SKalle Valo * This function is invoked whenever endpoints require credit 882bdcd8170SKalle Valo * distributions. A lock is held while this function is invoked, this 883bdcd8170SKalle Valo * function shall NOT block. The ep_dist_list is a list of distribution 884bdcd8170SKalle Valo * structures in prioritized order as defined by the call to the 885bdcd8170SKalle Valo * htc_set_credit_dist() api. 886bdcd8170SKalle Valo */ 887bdcd8170SKalle Valo void ath6k_credit_distribute(struct htc_credit_state_info *cred_info, 888bdcd8170SKalle Valo struct list_head *ep_dist_list, 889bdcd8170SKalle Valo enum htc_credit_dist_reason reason) 890bdcd8170SKalle Valo { 891bdcd8170SKalle Valo switch (reason) { 892bdcd8170SKalle Valo case HTC_CREDIT_DIST_SEND_COMPLETE: 893bdcd8170SKalle Valo ath6k_credit_update(cred_info, ep_dist_list); 894bdcd8170SKalle Valo break; 895bdcd8170SKalle Valo case HTC_CREDIT_DIST_ACTIVITY_CHANGE: 896bdcd8170SKalle Valo ath6k_redistribute_credits(cred_info, ep_dist_list); 897bdcd8170SKalle Valo break; 898bdcd8170SKalle Valo default: 899bdcd8170SKalle Valo break; 900bdcd8170SKalle Valo } 901bdcd8170SKalle Valo 902bdcd8170SKalle Valo WARN_ON(cred_info->cur_free_credits > cred_info->total_avail_credits); 903bdcd8170SKalle Valo WARN_ON(cred_info->cur_free_credits < 0); 904bdcd8170SKalle Valo } 905bdcd8170SKalle Valo 906bdcd8170SKalle Valo void disconnect_timer_handler(unsigned long ptr) 907bdcd8170SKalle Valo { 908bdcd8170SKalle Valo struct net_device *dev = (struct net_device *)ptr; 909bdcd8170SKalle Valo struct ath6kl *ar = ath6kl_priv(dev); 910bdcd8170SKalle Valo 911bdcd8170SKalle Valo ath6kl_init_profile_info(ar); 912bdcd8170SKalle Valo ath6kl_disconnect(ar); 913bdcd8170SKalle Valo } 914bdcd8170SKalle Valo 915bdcd8170SKalle Valo void ath6kl_disconnect(struct ath6kl *ar) 916bdcd8170SKalle Valo { 917bdcd8170SKalle Valo if (test_bit(CONNECTED, &ar->flag) || 918bdcd8170SKalle Valo test_bit(CONNECT_PEND, &ar->flag)) { 919bdcd8170SKalle Valo ath6kl_wmi_disconnect_cmd(ar->wmi); 920bdcd8170SKalle Valo /* 921bdcd8170SKalle Valo * Disconnect command is issued, clear the connect pending 922bdcd8170SKalle Valo * flag. The connected flag will be cleared in 923bdcd8170SKalle Valo * disconnect event notification. 924bdcd8170SKalle Valo */ 925bdcd8170SKalle Valo clear_bit(CONNECT_PEND, &ar->flag); 926bdcd8170SKalle Valo } 927bdcd8170SKalle Valo } 928bdcd8170SKalle Valo 929abcb344bSKalle Valo void ath6kl_deep_sleep_enable(struct ath6kl *ar) 930abcb344bSKalle Valo { 931abcb344bSKalle Valo switch (ar->sme_state) { 932abcb344bSKalle Valo case SME_CONNECTING: 933abcb344bSKalle Valo cfg80211_connect_result(ar->net_dev, ar->bssid, NULL, 0, 934abcb344bSKalle Valo NULL, 0, 935abcb344bSKalle Valo WLAN_STATUS_UNSPECIFIED_FAILURE, 936abcb344bSKalle Valo GFP_KERNEL); 937abcb344bSKalle Valo break; 938abcb344bSKalle Valo case SME_CONNECTED: 939abcb344bSKalle Valo default: 940abcb344bSKalle Valo /* 941abcb344bSKalle Valo * FIXME: oddly enough smeState is in DISCONNECTED during 942abcb344bSKalle Valo * suspend, why? Need to send disconnected event in that 943abcb344bSKalle Valo * state. 944abcb344bSKalle Valo */ 945abcb344bSKalle Valo cfg80211_disconnected(ar->net_dev, 0, NULL, 0, GFP_KERNEL); 946abcb344bSKalle Valo break; 947abcb344bSKalle Valo } 948abcb344bSKalle Valo 949abcb344bSKalle Valo if (test_bit(CONNECTED, &ar->flag) || 950abcb344bSKalle Valo test_bit(CONNECT_PEND, &ar->flag)) 951abcb344bSKalle Valo ath6kl_wmi_disconnect_cmd(ar->wmi); 952abcb344bSKalle Valo 953abcb344bSKalle Valo ar->sme_state = SME_DISCONNECTED; 954abcb344bSKalle Valo 955abcb344bSKalle Valo /* disable scanning */ 956abcb344bSKalle Valo if (ath6kl_wmi_scanparams_cmd(ar->wmi, 0xFFFF, 0, 0, 0, 0, 0, 0, 0, 957abcb344bSKalle Valo 0, 0) != 0) 958abcb344bSKalle Valo printk(KERN_WARNING "ath6kl: failed to disable scan " 959abcb344bSKalle Valo "during suspend\n"); 960abcb344bSKalle Valo 961abcb344bSKalle Valo ath6kl_cfg80211_scan_complete_event(ar, -ECANCELED); 962abcb344bSKalle Valo } 963abcb344bSKalle Valo 964bdcd8170SKalle Valo /* WMI Event handlers */ 965bdcd8170SKalle Valo 966bdcd8170SKalle Valo static const char *get_hw_id_string(u32 id) 967bdcd8170SKalle Valo { 968bdcd8170SKalle Valo switch (id) { 969bdcd8170SKalle Valo case AR6003_REV1_VERSION: 970bdcd8170SKalle Valo return "1.0"; 971bdcd8170SKalle Valo case AR6003_REV2_VERSION: 972bdcd8170SKalle Valo return "2.0"; 973bdcd8170SKalle Valo case AR6003_REV3_VERSION: 974bdcd8170SKalle Valo return "2.1.1"; 975bdcd8170SKalle Valo default: 976bdcd8170SKalle Valo return "unknown"; 977bdcd8170SKalle Valo } 978bdcd8170SKalle Valo } 979bdcd8170SKalle Valo 980bdcd8170SKalle Valo void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver) 981bdcd8170SKalle Valo { 982bdcd8170SKalle Valo struct ath6kl *ar = devt; 983bdcd8170SKalle Valo struct net_device *dev = ar->net_dev; 984bdcd8170SKalle Valo 985bdcd8170SKalle Valo memcpy(dev->dev_addr, datap, ETH_ALEN); 986bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, "%s: mac addr = %pM\n", 987bdcd8170SKalle Valo __func__, dev->dev_addr); 988bdcd8170SKalle Valo 989bdcd8170SKalle Valo ar->version.wlan_ver = sw_ver; 990bdcd8170SKalle Valo ar->version.abi_ver = abi_ver; 991bdcd8170SKalle Valo 992bdcd8170SKalle Valo snprintf(ar->wdev->wiphy->fw_version, 993bdcd8170SKalle Valo sizeof(ar->wdev->wiphy->fw_version), 994bdcd8170SKalle Valo "%u.%u.%u.%u", 995bdcd8170SKalle Valo (ar->version.wlan_ver & 0xf0000000) >> 28, 996bdcd8170SKalle Valo (ar->version.wlan_ver & 0x0f000000) >> 24, 997bdcd8170SKalle Valo (ar->version.wlan_ver & 0x00ff0000) >> 16, 998bdcd8170SKalle Valo (ar->version.wlan_ver & 0x0000ffff)); 999bdcd8170SKalle Valo 1000bdcd8170SKalle Valo /* indicate to the waiting thread that the ready event was received */ 1001bdcd8170SKalle Valo set_bit(WMI_READY, &ar->flag); 1002bdcd8170SKalle Valo wake_up(&ar->event_wq); 1003bdcd8170SKalle Valo 1004003353b0SKalle Valo ath6kl_info("hw %s fw %s%s\n", 1005bdcd8170SKalle Valo get_hw_id_string(ar->wdev->wiphy->hw_version), 1006003353b0SKalle Valo ar->wdev->wiphy->fw_version, 1007003353b0SKalle Valo test_bit(TESTMODE, &ar->flag) ? " testmode" : ""); 1008bdcd8170SKalle Valo } 1009bdcd8170SKalle Valo 1010bdcd8170SKalle Valo void ath6kl_scan_complete_evt(struct ath6kl *ar, int status) 1011bdcd8170SKalle Valo { 1012bdcd8170SKalle Valo ath6kl_cfg80211_scan_complete_event(ar, status); 1013bdcd8170SKalle Valo 1014bdcd8170SKalle Valo if (!ar->usr_bss_filter) 1015bdcd8170SKalle Valo ath6kl_wmi_bssfilter_cmd(ar->wmi, NONE_BSS_FILTER, 0); 1016bdcd8170SKalle Valo 1017bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_WLAN_SCAN, "scan complete: %d\n", status); 1018bdcd8170SKalle Valo } 1019bdcd8170SKalle Valo 1020bdcd8170SKalle Valo void ath6kl_connect_event(struct ath6kl *ar, u16 channel, u8 *bssid, 1021bdcd8170SKalle Valo u16 listen_int, u16 beacon_int, 1022bdcd8170SKalle Valo enum network_type net_type, u8 beacon_ie_len, 1023bdcd8170SKalle Valo u8 assoc_req_len, u8 assoc_resp_len, 1024bdcd8170SKalle Valo u8 *assoc_info) 1025bdcd8170SKalle Valo { 1026bdcd8170SKalle Valo unsigned long flags; 1027bdcd8170SKalle Valo 1028bdcd8170SKalle Valo ath6kl_cfg80211_connect_event(ar, channel, bssid, 1029bdcd8170SKalle Valo listen_int, beacon_int, 1030bdcd8170SKalle Valo net_type, beacon_ie_len, 1031bdcd8170SKalle Valo assoc_req_len, assoc_resp_len, 1032bdcd8170SKalle Valo assoc_info); 1033bdcd8170SKalle Valo 1034bdcd8170SKalle Valo memcpy(ar->bssid, bssid, sizeof(ar->bssid)); 1035bdcd8170SKalle Valo ar->bss_ch = channel; 1036bdcd8170SKalle Valo 1037bdcd8170SKalle Valo if ((ar->nw_type == INFRA_NETWORK)) 1038bdcd8170SKalle Valo ath6kl_wmi_listeninterval_cmd(ar->wmi, ar->listen_intvl_t, 1039bdcd8170SKalle Valo ar->listen_intvl_b); 1040bdcd8170SKalle Valo 1041bdcd8170SKalle Valo netif_wake_queue(ar->net_dev); 1042bdcd8170SKalle Valo 1043bdcd8170SKalle Valo /* Update connect & link status atomically */ 1044bdcd8170SKalle Valo spin_lock_irqsave(&ar->lock, flags); 1045bdcd8170SKalle Valo set_bit(CONNECTED, &ar->flag); 1046bdcd8170SKalle Valo clear_bit(CONNECT_PEND, &ar->flag); 1047bdcd8170SKalle Valo netif_carrier_on(ar->net_dev); 1048bdcd8170SKalle Valo spin_unlock_irqrestore(&ar->lock, flags); 1049bdcd8170SKalle Valo 1050bdcd8170SKalle Valo aggr_reset_state(ar->aggr_cntxt); 1051bdcd8170SKalle Valo ar->reconnect_flag = 0; 1052bdcd8170SKalle Valo 1053bdcd8170SKalle Valo if ((ar->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) { 1054bdcd8170SKalle Valo memset(ar->node_map, 0, sizeof(ar->node_map)); 1055bdcd8170SKalle Valo ar->node_num = 0; 1056bdcd8170SKalle Valo ar->next_ep_id = ENDPOINT_2; 1057bdcd8170SKalle Valo } 1058bdcd8170SKalle Valo 1059bdcd8170SKalle Valo if (!ar->usr_bss_filter) 1060bdcd8170SKalle Valo ath6kl_wmi_bssfilter_cmd(ar->wmi, NONE_BSS_FILTER, 0); 1061bdcd8170SKalle Valo } 1062bdcd8170SKalle Valo 1063bdcd8170SKalle Valo void ath6kl_tkip_micerr_event(struct ath6kl *ar, u8 keyid, bool ismcast) 1064bdcd8170SKalle Valo { 1065bdcd8170SKalle Valo struct ath6kl_sta *sta; 1066bdcd8170SKalle Valo u8 tsc[6]; 1067bdcd8170SKalle Valo /* 1068bdcd8170SKalle Valo * For AP case, keyid will have aid of STA which sent pkt with 1069bdcd8170SKalle Valo * MIC error. Use this aid to get MAC & send it to hostapd. 1070bdcd8170SKalle Valo */ 1071bdcd8170SKalle Valo if (ar->nw_type == AP_NETWORK) { 1072bdcd8170SKalle Valo sta = ath6kl_find_sta_by_aid(ar, (keyid >> 2)); 1073bdcd8170SKalle Valo if (!sta) 1074bdcd8170SKalle Valo return; 1075bdcd8170SKalle Valo 1076bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, 1077bdcd8170SKalle Valo "ap tkip mic error received from aid=%d\n", keyid); 1078bdcd8170SKalle Valo 1079bdcd8170SKalle Valo memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */ 1080bdcd8170SKalle Valo cfg80211_michael_mic_failure(ar->net_dev, sta->mac, 1081bdcd8170SKalle Valo NL80211_KEYTYPE_PAIRWISE, keyid, 1082bdcd8170SKalle Valo tsc, GFP_KERNEL); 1083bdcd8170SKalle Valo } else 1084bdcd8170SKalle Valo ath6kl_cfg80211_tkip_micerr_event(ar, keyid, ismcast); 1085bdcd8170SKalle Valo 1086bdcd8170SKalle Valo } 1087bdcd8170SKalle Valo 1088bdcd8170SKalle Valo static void ath6kl_update_target_stats(struct ath6kl *ar, u8 *ptr, u32 len) 1089bdcd8170SKalle Valo { 1090bdcd8170SKalle Valo struct wmi_target_stats *tgt_stats = 1091bdcd8170SKalle Valo (struct wmi_target_stats *) ptr; 1092bdcd8170SKalle Valo struct target_stats *stats = &ar->target_stats; 1093bdcd8170SKalle Valo struct tkip_ccmp_stats *ccmp_stats; 1094bdcd8170SKalle Valo struct bss *conn_bss = NULL; 1095bdcd8170SKalle Valo struct cserv_stats *c_stats; 1096bdcd8170SKalle Valo u8 ac; 1097bdcd8170SKalle Valo 1098bdcd8170SKalle Valo if (len < sizeof(*tgt_stats)) 1099bdcd8170SKalle Valo return; 1100bdcd8170SKalle Valo 1101bdcd8170SKalle Valo /* update the RSSI of the connected bss */ 1102bdcd8170SKalle Valo if (test_bit(CONNECTED, &ar->flag)) { 1103bdcd8170SKalle Valo conn_bss = ath6kl_wmi_find_node(ar->wmi, ar->bssid); 1104bdcd8170SKalle Valo if (conn_bss) { 1105bdcd8170SKalle Valo c_stats = &tgt_stats->cserv_stats; 1106bdcd8170SKalle Valo conn_bss->ni_rssi = 1107bdcd8170SKalle Valo a_sle16_to_cpu(c_stats->cs_ave_beacon_rssi); 1108bdcd8170SKalle Valo conn_bss->ni_snr = 1109bdcd8170SKalle Valo tgt_stats->cserv_stats.cs_ave_beacon_snr; 1110bdcd8170SKalle Valo ath6kl_wmi_node_return(ar->wmi, conn_bss); 1111bdcd8170SKalle Valo } 1112bdcd8170SKalle Valo } 1113bdcd8170SKalle Valo 1114bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, "updating target stats\n"); 1115bdcd8170SKalle Valo 1116bdcd8170SKalle Valo stats->tx_pkt += le32_to_cpu(tgt_stats->stats.tx.pkt); 1117bdcd8170SKalle Valo stats->tx_byte += le32_to_cpu(tgt_stats->stats.tx.byte); 1118bdcd8170SKalle Valo stats->tx_ucast_pkt += le32_to_cpu(tgt_stats->stats.tx.ucast_pkt); 1119bdcd8170SKalle Valo stats->tx_ucast_byte += le32_to_cpu(tgt_stats->stats.tx.ucast_byte); 1120bdcd8170SKalle Valo stats->tx_mcast_pkt += le32_to_cpu(tgt_stats->stats.tx.mcast_pkt); 1121bdcd8170SKalle Valo stats->tx_mcast_byte += le32_to_cpu(tgt_stats->stats.tx.mcast_byte); 1122bdcd8170SKalle Valo stats->tx_bcast_pkt += le32_to_cpu(tgt_stats->stats.tx.bcast_pkt); 1123bdcd8170SKalle Valo stats->tx_bcast_byte += le32_to_cpu(tgt_stats->stats.tx.bcast_byte); 1124bdcd8170SKalle Valo stats->tx_rts_success_cnt += 1125bdcd8170SKalle Valo le32_to_cpu(tgt_stats->stats.tx.rts_success_cnt); 1126bdcd8170SKalle Valo 1127bdcd8170SKalle Valo for (ac = 0; ac < WMM_NUM_AC; ac++) 1128bdcd8170SKalle Valo stats->tx_pkt_per_ac[ac] += 1129bdcd8170SKalle Valo le32_to_cpu(tgt_stats->stats.tx.pkt_per_ac[ac]); 1130bdcd8170SKalle Valo 1131bdcd8170SKalle Valo stats->tx_err += le32_to_cpu(tgt_stats->stats.tx.err); 1132bdcd8170SKalle Valo stats->tx_fail_cnt += le32_to_cpu(tgt_stats->stats.tx.fail_cnt); 1133bdcd8170SKalle Valo stats->tx_retry_cnt += le32_to_cpu(tgt_stats->stats.tx.retry_cnt); 1134bdcd8170SKalle Valo stats->tx_mult_retry_cnt += 1135bdcd8170SKalle Valo le32_to_cpu(tgt_stats->stats.tx.mult_retry_cnt); 1136bdcd8170SKalle Valo stats->tx_rts_fail_cnt += 1137bdcd8170SKalle Valo le32_to_cpu(tgt_stats->stats.tx.rts_fail_cnt); 1138bdcd8170SKalle Valo stats->tx_ucast_rate = 1139bdcd8170SKalle Valo ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.tx.ucast_rate)); 1140bdcd8170SKalle Valo 1141bdcd8170SKalle Valo stats->rx_pkt += le32_to_cpu(tgt_stats->stats.rx.pkt); 1142bdcd8170SKalle Valo stats->rx_byte += le32_to_cpu(tgt_stats->stats.rx.byte); 1143bdcd8170SKalle Valo stats->rx_ucast_pkt += le32_to_cpu(tgt_stats->stats.rx.ucast_pkt); 1144bdcd8170SKalle Valo stats->rx_ucast_byte += le32_to_cpu(tgt_stats->stats.rx.ucast_byte); 1145bdcd8170SKalle Valo stats->rx_mcast_pkt += le32_to_cpu(tgt_stats->stats.rx.mcast_pkt); 1146bdcd8170SKalle Valo stats->rx_mcast_byte += le32_to_cpu(tgt_stats->stats.rx.mcast_byte); 1147bdcd8170SKalle Valo stats->rx_bcast_pkt += le32_to_cpu(tgt_stats->stats.rx.bcast_pkt); 1148bdcd8170SKalle Valo stats->rx_bcast_byte += le32_to_cpu(tgt_stats->stats.rx.bcast_byte); 1149bdcd8170SKalle Valo stats->rx_frgment_pkt += le32_to_cpu(tgt_stats->stats.rx.frgment_pkt); 1150bdcd8170SKalle Valo stats->rx_err += le32_to_cpu(tgt_stats->stats.rx.err); 1151bdcd8170SKalle Valo stats->rx_crc_err += le32_to_cpu(tgt_stats->stats.rx.crc_err); 1152bdcd8170SKalle Valo stats->rx_key_cache_miss += 1153bdcd8170SKalle Valo le32_to_cpu(tgt_stats->stats.rx.key_cache_miss); 1154bdcd8170SKalle Valo stats->rx_decrypt_err += le32_to_cpu(tgt_stats->stats.rx.decrypt_err); 1155bdcd8170SKalle Valo stats->rx_dupl_frame += le32_to_cpu(tgt_stats->stats.rx.dupl_frame); 1156bdcd8170SKalle Valo stats->rx_ucast_rate = 1157bdcd8170SKalle Valo ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.rx.ucast_rate)); 1158bdcd8170SKalle Valo 1159bdcd8170SKalle Valo ccmp_stats = &tgt_stats->stats.tkip_ccmp_stats; 1160bdcd8170SKalle Valo 1161bdcd8170SKalle Valo stats->tkip_local_mic_fail += 1162bdcd8170SKalle Valo le32_to_cpu(ccmp_stats->tkip_local_mic_fail); 1163bdcd8170SKalle Valo stats->tkip_cnter_measures_invoked += 1164bdcd8170SKalle Valo le32_to_cpu(ccmp_stats->tkip_cnter_measures_invoked); 1165bdcd8170SKalle Valo stats->tkip_fmt_err += le32_to_cpu(ccmp_stats->tkip_fmt_err); 1166bdcd8170SKalle Valo 1167bdcd8170SKalle Valo stats->ccmp_fmt_err += le32_to_cpu(ccmp_stats->ccmp_fmt_err); 1168bdcd8170SKalle Valo stats->ccmp_replays += le32_to_cpu(ccmp_stats->ccmp_replays); 1169bdcd8170SKalle Valo 1170bdcd8170SKalle Valo stats->pwr_save_fail_cnt += 1171bdcd8170SKalle Valo le32_to_cpu(tgt_stats->pm_stats.pwr_save_failure_cnt); 1172bdcd8170SKalle Valo stats->noise_floor_calib = 1173bdcd8170SKalle Valo a_sle32_to_cpu(tgt_stats->noise_floor_calib); 1174bdcd8170SKalle Valo 1175bdcd8170SKalle Valo stats->cs_bmiss_cnt += 1176bdcd8170SKalle Valo le32_to_cpu(tgt_stats->cserv_stats.cs_bmiss_cnt); 1177bdcd8170SKalle Valo stats->cs_low_rssi_cnt += 1178bdcd8170SKalle Valo le32_to_cpu(tgt_stats->cserv_stats.cs_low_rssi_cnt); 1179bdcd8170SKalle Valo stats->cs_connect_cnt += 1180bdcd8170SKalle Valo le16_to_cpu(tgt_stats->cserv_stats.cs_connect_cnt); 1181bdcd8170SKalle Valo stats->cs_discon_cnt += 1182bdcd8170SKalle Valo le16_to_cpu(tgt_stats->cserv_stats.cs_discon_cnt); 1183bdcd8170SKalle Valo 1184bdcd8170SKalle Valo stats->cs_ave_beacon_rssi = 1185bdcd8170SKalle Valo a_sle16_to_cpu(tgt_stats->cserv_stats.cs_ave_beacon_rssi); 1186bdcd8170SKalle Valo 1187bdcd8170SKalle Valo stats->cs_last_roam_msec = 1188bdcd8170SKalle Valo tgt_stats->cserv_stats.cs_last_roam_msec; 1189bdcd8170SKalle Valo stats->cs_snr = tgt_stats->cserv_stats.cs_snr; 1190bdcd8170SKalle Valo stats->cs_rssi = a_sle16_to_cpu(tgt_stats->cserv_stats.cs_rssi); 1191bdcd8170SKalle Valo 1192bdcd8170SKalle Valo stats->lq_val = le32_to_cpu(tgt_stats->lq_val); 1193bdcd8170SKalle Valo 1194bdcd8170SKalle Valo stats->wow_pkt_dropped += 1195bdcd8170SKalle Valo le32_to_cpu(tgt_stats->wow_stats.wow_pkt_dropped); 1196bdcd8170SKalle Valo stats->wow_host_pkt_wakeups += 1197bdcd8170SKalle Valo tgt_stats->wow_stats.wow_host_pkt_wakeups; 1198bdcd8170SKalle Valo stats->wow_host_evt_wakeups += 1199bdcd8170SKalle Valo tgt_stats->wow_stats.wow_host_evt_wakeups; 1200bdcd8170SKalle Valo stats->wow_evt_discarded += 1201bdcd8170SKalle Valo le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded); 1202bdcd8170SKalle Valo 1203bdcd8170SKalle Valo if (test_bit(STATS_UPDATE_PEND, &ar->flag)) { 1204bdcd8170SKalle Valo clear_bit(STATS_UPDATE_PEND, &ar->flag); 1205bdcd8170SKalle Valo wake_up(&ar->event_wq); 1206bdcd8170SKalle Valo } 1207bdcd8170SKalle Valo } 1208bdcd8170SKalle Valo 1209bdcd8170SKalle Valo static void ath6kl_add_le32(__le32 *var, __le32 val) 1210bdcd8170SKalle Valo { 1211bdcd8170SKalle Valo *var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val)); 1212bdcd8170SKalle Valo } 1213bdcd8170SKalle Valo 1214bdcd8170SKalle Valo void ath6kl_tgt_stats_event(struct ath6kl *ar, u8 *ptr, u32 len) 1215bdcd8170SKalle Valo { 1216bdcd8170SKalle Valo struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr; 1217bdcd8170SKalle Valo struct wmi_ap_mode_stat *ap = &ar->ap_stats; 1218bdcd8170SKalle Valo struct wmi_per_sta_stat *st_ap, *st_p; 1219bdcd8170SKalle Valo u8 ac; 1220bdcd8170SKalle Valo 1221bdcd8170SKalle Valo if (ar->nw_type == AP_NETWORK) { 1222bdcd8170SKalle Valo if (len < sizeof(*p)) 1223bdcd8170SKalle Valo return; 1224bdcd8170SKalle Valo 1225bdcd8170SKalle Valo for (ac = 0; ac < AP_MAX_NUM_STA; ac++) { 1226bdcd8170SKalle Valo st_ap = &ap->sta[ac]; 1227bdcd8170SKalle Valo st_p = &p->sta[ac]; 1228bdcd8170SKalle Valo 1229bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->tx_bytes, st_p->tx_bytes); 1230bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->tx_pkts, st_p->tx_pkts); 1231bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->tx_error, st_p->tx_error); 1232bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->tx_discard, st_p->tx_discard); 1233bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->rx_bytes, st_p->rx_bytes); 1234bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->rx_pkts, st_p->rx_pkts); 1235bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->rx_error, st_p->rx_error); 1236bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->rx_discard, st_p->rx_discard); 1237bdcd8170SKalle Valo } 1238bdcd8170SKalle Valo 1239bdcd8170SKalle Valo } else { 1240bdcd8170SKalle Valo ath6kl_update_target_stats(ar, ptr, len); 1241bdcd8170SKalle Valo } 1242bdcd8170SKalle Valo } 1243bdcd8170SKalle Valo 1244bdcd8170SKalle Valo void ath6kl_wakeup_event(void *dev) 1245bdcd8170SKalle Valo { 1246bdcd8170SKalle Valo struct ath6kl *ar = (struct ath6kl *) dev; 1247bdcd8170SKalle Valo 1248bdcd8170SKalle Valo wake_up(&ar->event_wq); 1249bdcd8170SKalle Valo } 1250bdcd8170SKalle Valo 1251bdcd8170SKalle Valo void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr) 1252bdcd8170SKalle Valo { 1253bdcd8170SKalle Valo struct ath6kl *ar = (struct ath6kl *) devt; 1254bdcd8170SKalle Valo 1255bdcd8170SKalle Valo ar->tx_pwr = tx_pwr; 1256bdcd8170SKalle Valo wake_up(&ar->event_wq); 1257bdcd8170SKalle Valo } 1258bdcd8170SKalle Valo 1259bdcd8170SKalle Valo void ath6kl_pspoll_event(struct ath6kl *ar, u8 aid) 1260bdcd8170SKalle Valo { 1261bdcd8170SKalle Valo struct ath6kl_sta *conn; 1262bdcd8170SKalle Valo struct sk_buff *skb; 1263bdcd8170SKalle Valo bool psq_empty = false; 1264bdcd8170SKalle Valo 1265bdcd8170SKalle Valo conn = ath6kl_find_sta_by_aid(ar, aid); 1266bdcd8170SKalle Valo 1267bdcd8170SKalle Valo if (!conn) 1268bdcd8170SKalle Valo return; 1269bdcd8170SKalle Valo /* 1270bdcd8170SKalle Valo * Send out a packet queued on ps queue. When the ps queue 1271bdcd8170SKalle Valo * becomes empty update the PVB for this station. 1272bdcd8170SKalle Valo */ 1273bdcd8170SKalle Valo spin_lock_bh(&conn->psq_lock); 1274bdcd8170SKalle Valo psq_empty = skb_queue_empty(&conn->psq); 1275bdcd8170SKalle Valo spin_unlock_bh(&conn->psq_lock); 1276bdcd8170SKalle Valo 1277bdcd8170SKalle Valo if (psq_empty) 1278bdcd8170SKalle Valo /* TODO: Send out a NULL data frame */ 1279bdcd8170SKalle Valo return; 1280bdcd8170SKalle Valo 1281bdcd8170SKalle Valo spin_lock_bh(&conn->psq_lock); 1282bdcd8170SKalle Valo skb = skb_dequeue(&conn->psq); 1283bdcd8170SKalle Valo spin_unlock_bh(&conn->psq_lock); 1284bdcd8170SKalle Valo 1285bdcd8170SKalle Valo conn->sta_flags |= STA_PS_POLLED; 1286bdcd8170SKalle Valo ath6kl_data_tx(skb, ar->net_dev); 1287bdcd8170SKalle Valo conn->sta_flags &= ~STA_PS_POLLED; 1288bdcd8170SKalle Valo 1289bdcd8170SKalle Valo spin_lock_bh(&conn->psq_lock); 1290bdcd8170SKalle Valo psq_empty = skb_queue_empty(&conn->psq); 1291bdcd8170SKalle Valo spin_unlock_bh(&conn->psq_lock); 1292bdcd8170SKalle Valo 1293bdcd8170SKalle Valo if (psq_empty) 1294bdcd8170SKalle Valo ath6kl_wmi_set_pvb_cmd(ar->wmi, conn->aid, 0); 1295bdcd8170SKalle Valo } 1296bdcd8170SKalle Valo 1297bdcd8170SKalle Valo void ath6kl_dtimexpiry_event(struct ath6kl *ar) 1298bdcd8170SKalle Valo { 1299bdcd8170SKalle Valo bool mcastq_empty = false; 1300bdcd8170SKalle Valo struct sk_buff *skb; 1301bdcd8170SKalle Valo 1302bdcd8170SKalle Valo /* 1303bdcd8170SKalle Valo * If there are no associated STAs, ignore the DTIM expiry event. 1304bdcd8170SKalle Valo * There can be potential race conditions where the last associated 1305bdcd8170SKalle Valo * STA may disconnect & before the host could clear the 'Indicate 1306bdcd8170SKalle Valo * DTIM' request to the firmware, the firmware would have just 1307bdcd8170SKalle Valo * indicated a DTIM expiry event. The race is between 'clear DTIM 1308bdcd8170SKalle Valo * expiry cmd' going from the host to the firmware & the DTIM 1309bdcd8170SKalle Valo * expiry event happening from the firmware to the host. 1310bdcd8170SKalle Valo */ 1311bdcd8170SKalle Valo if (!ar->sta_list_index) 1312bdcd8170SKalle Valo return; 1313bdcd8170SKalle Valo 1314bdcd8170SKalle Valo spin_lock_bh(&ar->mcastpsq_lock); 1315bdcd8170SKalle Valo mcastq_empty = skb_queue_empty(&ar->mcastpsq); 1316bdcd8170SKalle Valo spin_unlock_bh(&ar->mcastpsq_lock); 1317bdcd8170SKalle Valo 1318bdcd8170SKalle Valo if (mcastq_empty) 1319bdcd8170SKalle Valo return; 1320bdcd8170SKalle Valo 1321bdcd8170SKalle Valo /* set the STA flag to dtim_expired for the frame to go out */ 1322bdcd8170SKalle Valo set_bit(DTIM_EXPIRED, &ar->flag); 1323bdcd8170SKalle Valo 1324bdcd8170SKalle Valo spin_lock_bh(&ar->mcastpsq_lock); 1325bdcd8170SKalle Valo while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) { 1326bdcd8170SKalle Valo spin_unlock_bh(&ar->mcastpsq_lock); 1327bdcd8170SKalle Valo 1328bdcd8170SKalle Valo ath6kl_data_tx(skb, ar->net_dev); 1329bdcd8170SKalle Valo 1330bdcd8170SKalle Valo spin_lock_bh(&ar->mcastpsq_lock); 1331bdcd8170SKalle Valo } 1332bdcd8170SKalle Valo spin_unlock_bh(&ar->mcastpsq_lock); 1333bdcd8170SKalle Valo 1334bdcd8170SKalle Valo clear_bit(DTIM_EXPIRED, &ar->flag); 1335bdcd8170SKalle Valo 1336bdcd8170SKalle Valo /* clear the LSB of the BitMapCtl field of the TIM IE */ 1337bdcd8170SKalle Valo ath6kl_wmi_set_pvb_cmd(ar->wmi, MCAST_AID, 0); 1338bdcd8170SKalle Valo } 1339bdcd8170SKalle Valo 1340bdcd8170SKalle Valo void ath6kl_disconnect_event(struct ath6kl *ar, u8 reason, u8 *bssid, 1341bdcd8170SKalle Valo u8 assoc_resp_len, u8 *assoc_info, 1342bdcd8170SKalle Valo u16 prot_reason_status) 1343bdcd8170SKalle Valo { 1344bdcd8170SKalle Valo struct bss *wmi_ssid_node = NULL; 1345bdcd8170SKalle Valo unsigned long flags; 1346bdcd8170SKalle Valo 1347bdcd8170SKalle Valo if (ar->nw_type == AP_NETWORK) { 1348bdcd8170SKalle Valo if (!ath6kl_remove_sta(ar, bssid, prot_reason_status)) 1349bdcd8170SKalle Valo return; 1350bdcd8170SKalle Valo 1351bdcd8170SKalle Valo /* if no more associated STAs, empty the mcast PS q */ 1352bdcd8170SKalle Valo if (ar->sta_list_index == 0) { 1353bdcd8170SKalle Valo spin_lock_bh(&ar->mcastpsq_lock); 1354bdcd8170SKalle Valo skb_queue_purge(&ar->mcastpsq); 1355bdcd8170SKalle Valo spin_unlock_bh(&ar->mcastpsq_lock); 1356bdcd8170SKalle Valo 1357bdcd8170SKalle Valo /* clear the LSB of the TIM IE's BitMapCtl field */ 1358bdcd8170SKalle Valo if (test_bit(WMI_READY, &ar->flag)) 1359bdcd8170SKalle Valo ath6kl_wmi_set_pvb_cmd(ar->wmi, MCAST_AID, 0); 1360bdcd8170SKalle Valo } 1361bdcd8170SKalle Valo 1362bdcd8170SKalle Valo if (!is_broadcast_ether_addr(bssid)) { 1363bdcd8170SKalle Valo /* send event to application */ 1364bdcd8170SKalle Valo cfg80211_del_sta(ar->net_dev, bssid, GFP_KERNEL); 1365bdcd8170SKalle Valo } 1366bdcd8170SKalle Valo 1367a587526aSEdward Lu if (memcmp(ar->net_dev->dev_addr, bssid, ETH_ALEN) == 0) 1368bdcd8170SKalle Valo clear_bit(CONNECTED, &ar->flag); 1369bdcd8170SKalle Valo return; 1370bdcd8170SKalle Valo } 1371bdcd8170SKalle Valo 1372bdcd8170SKalle Valo ath6kl_cfg80211_disconnect_event(ar, reason, bssid, 1373bdcd8170SKalle Valo assoc_resp_len, assoc_info, 1374bdcd8170SKalle Valo prot_reason_status); 1375bdcd8170SKalle Valo 1376bdcd8170SKalle Valo aggr_reset_state(ar->aggr_cntxt); 1377bdcd8170SKalle Valo 1378bdcd8170SKalle Valo del_timer(&ar->disconnect_timer); 1379bdcd8170SKalle Valo 1380bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_WLAN_CONNECT, 1381bdcd8170SKalle Valo "disconnect reason is %d\n", reason); 1382bdcd8170SKalle Valo 1383bdcd8170SKalle Valo /* 1384bdcd8170SKalle Valo * If the event is due to disconnect cmd from the host, only they 1385bdcd8170SKalle Valo * the target would stop trying to connect. Under any other 1386bdcd8170SKalle Valo * condition, target would keep trying to connect. 1387bdcd8170SKalle Valo */ 1388bdcd8170SKalle Valo if (reason == DISCONNECT_CMD) { 1389bdcd8170SKalle Valo if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag)) 1390bdcd8170SKalle Valo ath6kl_wmi_bssfilter_cmd(ar->wmi, NONE_BSS_FILTER, 0); 1391bdcd8170SKalle Valo } else { 1392bdcd8170SKalle Valo set_bit(CONNECT_PEND, &ar->flag); 1393bdcd8170SKalle Valo if (((reason == ASSOC_FAILED) && 1394bdcd8170SKalle Valo (prot_reason_status == 0x11)) || 1395bdcd8170SKalle Valo ((reason == ASSOC_FAILED) && (prot_reason_status == 0x0) 1396bdcd8170SKalle Valo && (ar->reconnect_flag == 1))) { 1397bdcd8170SKalle Valo set_bit(CONNECTED, &ar->flag); 1398bdcd8170SKalle Valo return; 1399bdcd8170SKalle Valo } 1400bdcd8170SKalle Valo } 1401bdcd8170SKalle Valo 1402bdcd8170SKalle Valo if ((reason == NO_NETWORK_AVAIL) && test_bit(WMI_READY, &ar->flag)) { 1403bdcd8170SKalle Valo ath6kl_wmi_node_free(ar->wmi, bssid); 1404bdcd8170SKalle Valo 1405bdcd8170SKalle Valo /* 1406bdcd8170SKalle Valo * In case any other same SSID nodes are present remove it, 1407bdcd8170SKalle Valo * since those nodes also not available now. 1408bdcd8170SKalle Valo */ 1409bdcd8170SKalle Valo do { 1410bdcd8170SKalle Valo /* 1411bdcd8170SKalle Valo * Find the nodes based on SSID and remove it 1412bdcd8170SKalle Valo * 1413bdcd8170SKalle Valo * Note: This case will not work out for 1414bdcd8170SKalle Valo * Hidden-SSID 1415bdcd8170SKalle Valo */ 1416bdcd8170SKalle Valo wmi_ssid_node = ath6kl_wmi_find_ssid_node(ar->wmi, 1417bdcd8170SKalle Valo ar->ssid, 1418bdcd8170SKalle Valo ar->ssid_len, 1419bdcd8170SKalle Valo false, 1420bdcd8170SKalle Valo true); 1421bdcd8170SKalle Valo 1422bdcd8170SKalle Valo if (wmi_ssid_node) 1423bdcd8170SKalle Valo ath6kl_wmi_node_free(ar->wmi, 1424bdcd8170SKalle Valo wmi_ssid_node->ni_macaddr); 1425bdcd8170SKalle Valo 1426bdcd8170SKalle Valo } while (wmi_ssid_node); 1427bdcd8170SKalle Valo } 1428bdcd8170SKalle Valo 1429bdcd8170SKalle Valo /* update connect & link status atomically */ 1430bdcd8170SKalle Valo spin_lock_irqsave(&ar->lock, flags); 1431bdcd8170SKalle Valo clear_bit(CONNECTED, &ar->flag); 1432bdcd8170SKalle Valo netif_carrier_off(ar->net_dev); 1433bdcd8170SKalle Valo spin_unlock_irqrestore(&ar->lock, flags); 1434bdcd8170SKalle Valo 1435bdcd8170SKalle Valo if ((reason != CSERV_DISCONNECT) || (ar->reconnect_flag != 1)) 1436bdcd8170SKalle Valo ar->reconnect_flag = 0; 1437bdcd8170SKalle Valo 1438bdcd8170SKalle Valo if (reason != CSERV_DISCONNECT) 1439bdcd8170SKalle Valo ar->user_key_ctrl = 0; 1440bdcd8170SKalle Valo 1441bdcd8170SKalle Valo netif_stop_queue(ar->net_dev); 1442bdcd8170SKalle Valo memset(ar->bssid, 0, sizeof(ar->bssid)); 1443bdcd8170SKalle Valo ar->bss_ch = 0; 1444bdcd8170SKalle Valo 1445bdcd8170SKalle Valo ath6kl_tx_data_cleanup(ar); 1446bdcd8170SKalle Valo } 1447bdcd8170SKalle Valo 1448bdcd8170SKalle Valo static int ath6kl_open(struct net_device *dev) 1449bdcd8170SKalle Valo { 1450bdcd8170SKalle Valo struct ath6kl *ar = ath6kl_priv(dev); 1451bdcd8170SKalle Valo unsigned long flags; 1452bdcd8170SKalle Valo 1453bdcd8170SKalle Valo spin_lock_irqsave(&ar->lock, flags); 1454bdcd8170SKalle Valo 1455575b5f34SRaja Mani set_bit(WLAN_ENABLED, &ar->flag); 1456bdcd8170SKalle Valo 1457bdcd8170SKalle Valo if (test_bit(CONNECTED, &ar->flag)) { 1458bdcd8170SKalle Valo netif_carrier_on(dev); 1459bdcd8170SKalle Valo netif_wake_queue(dev); 1460bdcd8170SKalle Valo } else 1461bdcd8170SKalle Valo netif_carrier_off(dev); 1462bdcd8170SKalle Valo 1463bdcd8170SKalle Valo spin_unlock_irqrestore(&ar->lock, flags); 1464bdcd8170SKalle Valo 1465bdcd8170SKalle Valo return 0; 1466bdcd8170SKalle Valo } 1467bdcd8170SKalle Valo 1468bdcd8170SKalle Valo static int ath6kl_close(struct net_device *dev) 1469bdcd8170SKalle Valo { 1470bdcd8170SKalle Valo struct ath6kl *ar = ath6kl_priv(dev); 1471bdcd8170SKalle Valo 1472bdcd8170SKalle Valo netif_stop_queue(dev); 1473bdcd8170SKalle Valo 1474bdcd8170SKalle Valo ath6kl_disconnect(ar); 1475bdcd8170SKalle Valo 1476bdcd8170SKalle Valo if (test_bit(WMI_READY, &ar->flag)) { 1477bdcd8170SKalle Valo if (ath6kl_wmi_scanparams_cmd(ar->wmi, 0xFFFF, 0, 0, 0, 0, 0, 0, 1478bdcd8170SKalle Valo 0, 0, 0)) 1479bdcd8170SKalle Valo return -EIO; 1480bdcd8170SKalle Valo 1481575b5f34SRaja Mani clear_bit(WLAN_ENABLED, &ar->flag); 1482bdcd8170SKalle Valo } 1483bdcd8170SKalle Valo 1484bdcd8170SKalle Valo ath6kl_cfg80211_scan_complete_event(ar, -ECANCELED); 1485bdcd8170SKalle Valo 1486bdcd8170SKalle Valo return 0; 1487bdcd8170SKalle Valo } 1488bdcd8170SKalle Valo 1489bdcd8170SKalle Valo static struct net_device_stats *ath6kl_get_stats(struct net_device *dev) 1490bdcd8170SKalle Valo { 1491bdcd8170SKalle Valo struct ath6kl *ar = ath6kl_priv(dev); 1492bdcd8170SKalle Valo 1493bdcd8170SKalle Valo return &ar->net_stats; 1494bdcd8170SKalle Valo } 1495bdcd8170SKalle Valo 1496bdcd8170SKalle Valo static struct net_device_ops ath6kl_netdev_ops = { 1497bdcd8170SKalle Valo .ndo_open = ath6kl_open, 1498bdcd8170SKalle Valo .ndo_stop = ath6kl_close, 1499bdcd8170SKalle Valo .ndo_start_xmit = ath6kl_data_tx, 1500bdcd8170SKalle Valo .ndo_get_stats = ath6kl_get_stats, 1501bdcd8170SKalle Valo }; 1502bdcd8170SKalle Valo 1503bdcd8170SKalle Valo void init_netdev(struct net_device *dev) 1504bdcd8170SKalle Valo { 1505bdcd8170SKalle Valo dev->netdev_ops = &ath6kl_netdev_ops; 1506bdcd8170SKalle Valo dev->watchdog_timeo = ATH6KL_TX_TIMEOUT; 1507bdcd8170SKalle Valo 1508bdcd8170SKalle Valo dev->needed_headroom = ETH_HLEN; 1509bdcd8170SKalle Valo dev->needed_headroom += sizeof(struct ath6kl_llc_snap_hdr) + 1510bdcd8170SKalle Valo sizeof(struct wmi_data_hdr) + HTC_HDR_LENGTH 15111df94a85SVasanthakumar Thiagarajan + WMI_MAX_TX_META_SZ + ATH6KL_HTC_ALIGN_BYTES; 1512bdcd8170SKalle Valo 1513bdcd8170SKalle Valo return; 1514bdcd8170SKalle Valo } 1515