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); 64bdcd8170SKalle Valo memcpy(sta->wpa_ie, wpaie, ielen); 65bdcd8170SKalle Valo sta->aid = aid; 66bdcd8170SKalle Valo sta->keymgmt = keymgmt; 67bdcd8170SKalle Valo sta->ucipher = ucipher; 68bdcd8170SKalle Valo sta->auth = auth; 69bdcd8170SKalle Valo 70bdcd8170SKalle Valo ar->sta_list_index = ar->sta_list_index | (1 << free_slot); 71bdcd8170SKalle Valo ar->ap_stats.sta[free_slot].aid = cpu_to_le32(aid); 72bdcd8170SKalle Valo } 73bdcd8170SKalle Valo 74bdcd8170SKalle Valo static void ath6kl_sta_cleanup(struct ath6kl *ar, u8 i) 75bdcd8170SKalle Valo { 76bdcd8170SKalle Valo struct ath6kl_sta *sta = &ar->sta_list[i]; 77bdcd8170SKalle Valo 78bdcd8170SKalle Valo /* empty the queued pkts in the PS queue if any */ 79bdcd8170SKalle Valo spin_lock_bh(&sta->psq_lock); 80bdcd8170SKalle Valo skb_queue_purge(&sta->psq); 81bdcd8170SKalle Valo spin_unlock_bh(&sta->psq_lock); 82bdcd8170SKalle Valo 83bdcd8170SKalle Valo memset(&ar->ap_stats.sta[sta->aid - 1], 0, 84bdcd8170SKalle Valo sizeof(struct wmi_per_sta_stat)); 85bdcd8170SKalle Valo memset(sta->mac, 0, ETH_ALEN); 86bdcd8170SKalle Valo memset(sta->wpa_ie, 0, ATH6KL_MAX_IE); 87bdcd8170SKalle Valo sta->aid = 0; 88bdcd8170SKalle Valo sta->sta_flags = 0; 89bdcd8170SKalle Valo 90bdcd8170SKalle Valo ar->sta_list_index = ar->sta_list_index & ~(1 << i); 91bdcd8170SKalle Valo 92bdcd8170SKalle Valo } 93bdcd8170SKalle Valo 94bdcd8170SKalle Valo static u8 ath6kl_remove_sta(struct ath6kl *ar, u8 *mac, u16 reason) 95bdcd8170SKalle Valo { 96bdcd8170SKalle Valo u8 i, removed = 0; 97bdcd8170SKalle Valo 98bdcd8170SKalle Valo if (is_zero_ether_addr(mac)) 99bdcd8170SKalle Valo return removed; 100bdcd8170SKalle Valo 101bdcd8170SKalle Valo if (is_broadcast_ether_addr(mac)) { 102bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, "deleting all station\n"); 103bdcd8170SKalle Valo 104bdcd8170SKalle Valo for (i = 0; i < AP_MAX_NUM_STA; i++) { 105bdcd8170SKalle Valo if (!is_zero_ether_addr(ar->sta_list[i].mac)) { 106bdcd8170SKalle Valo ath6kl_sta_cleanup(ar, i); 107bdcd8170SKalle Valo removed = 1; 108bdcd8170SKalle Valo } 109bdcd8170SKalle Valo } 110bdcd8170SKalle Valo } else { 111bdcd8170SKalle Valo for (i = 0; i < AP_MAX_NUM_STA; i++) { 112bdcd8170SKalle Valo if (memcmp(ar->sta_list[i].mac, mac, ETH_ALEN) == 0) { 113bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, 114bdcd8170SKalle Valo "deleting station %pM aid=%d reason=%d\n", 115bdcd8170SKalle Valo mac, ar->sta_list[i].aid, reason); 116bdcd8170SKalle Valo ath6kl_sta_cleanup(ar, i); 117bdcd8170SKalle Valo removed = 1; 118bdcd8170SKalle Valo break; 119bdcd8170SKalle Valo } 120bdcd8170SKalle Valo } 121bdcd8170SKalle Valo } 122bdcd8170SKalle Valo 123bdcd8170SKalle Valo return removed; 124bdcd8170SKalle Valo } 125bdcd8170SKalle Valo 126bdcd8170SKalle Valo enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac) 127bdcd8170SKalle Valo { 128bdcd8170SKalle Valo struct ath6kl *ar = devt; 129bdcd8170SKalle Valo return ar->ac2ep_map[ac]; 130bdcd8170SKalle Valo } 131bdcd8170SKalle Valo 132bdcd8170SKalle Valo struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar) 133bdcd8170SKalle Valo { 134bdcd8170SKalle Valo struct ath6kl_cookie *cookie; 135bdcd8170SKalle Valo 136bdcd8170SKalle Valo cookie = ar->cookie_list; 137bdcd8170SKalle Valo if (cookie != NULL) { 138bdcd8170SKalle Valo ar->cookie_list = cookie->arc_list_next; 139bdcd8170SKalle Valo ar->cookie_count--; 140bdcd8170SKalle Valo } 141bdcd8170SKalle Valo 142bdcd8170SKalle Valo return cookie; 143bdcd8170SKalle Valo } 144bdcd8170SKalle Valo 145bdcd8170SKalle Valo void ath6kl_cookie_init(struct ath6kl *ar) 146bdcd8170SKalle Valo { 147bdcd8170SKalle Valo u32 i; 148bdcd8170SKalle Valo 149bdcd8170SKalle Valo ar->cookie_list = NULL; 150bdcd8170SKalle Valo ar->cookie_count = 0; 151bdcd8170SKalle Valo 152bdcd8170SKalle Valo memset(ar->cookie_mem, 0, sizeof(ar->cookie_mem)); 153bdcd8170SKalle Valo 154bdcd8170SKalle Valo for (i = 0; i < MAX_COOKIE_NUM; i++) 155bdcd8170SKalle Valo ath6kl_free_cookie(ar, &ar->cookie_mem[i]); 156bdcd8170SKalle Valo } 157bdcd8170SKalle Valo 158bdcd8170SKalle Valo void ath6kl_cookie_cleanup(struct ath6kl *ar) 159bdcd8170SKalle Valo { 160bdcd8170SKalle Valo ar->cookie_list = NULL; 161bdcd8170SKalle Valo ar->cookie_count = 0; 162bdcd8170SKalle Valo } 163bdcd8170SKalle Valo 164bdcd8170SKalle Valo void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie) 165bdcd8170SKalle Valo { 166bdcd8170SKalle Valo /* Insert first */ 167bdcd8170SKalle Valo 168bdcd8170SKalle Valo if (!ar || !cookie) 169bdcd8170SKalle Valo return; 170bdcd8170SKalle Valo 171bdcd8170SKalle Valo cookie->arc_list_next = ar->cookie_list; 172bdcd8170SKalle Valo ar->cookie_list = cookie; 173bdcd8170SKalle Valo ar->cookie_count++; 174bdcd8170SKalle Valo } 175bdcd8170SKalle Valo 176bdcd8170SKalle Valo /* set the window address register (using 4-byte register access ). */ 177bdcd8170SKalle Valo static int ath6kl_set_addrwin_reg(struct ath6kl *ar, u32 reg_addr, u32 addr) 178bdcd8170SKalle Valo { 179bdcd8170SKalle Valo int status; 180bdcd8170SKalle Valo u8 addr_val[4]; 181bdcd8170SKalle Valo s32 i; 182bdcd8170SKalle Valo 183bdcd8170SKalle Valo /* 184bdcd8170SKalle Valo * Write bytes 1,2,3 of the register to set the upper address bytes, 185bdcd8170SKalle Valo * the LSB is written last to initiate the access cycle 186bdcd8170SKalle Valo */ 187bdcd8170SKalle Valo 188bdcd8170SKalle Valo for (i = 1; i <= 3; i++) { 189bdcd8170SKalle Valo /* 190bdcd8170SKalle Valo * Fill the buffer with the address byte value we want to 191bdcd8170SKalle Valo * hit 4 times. 192bdcd8170SKalle Valo */ 193bdcd8170SKalle Valo memset(addr_val, ((u8 *)&addr)[i], 4); 194bdcd8170SKalle Valo 195bdcd8170SKalle Valo /* 196bdcd8170SKalle Valo * Hit each byte of the register address with a 4-byte 197bdcd8170SKalle Valo * write operation to the same address, this is a harmless 198bdcd8170SKalle Valo * operation. 199bdcd8170SKalle Valo */ 200bdcd8170SKalle Valo status = hif_read_write_sync(ar, reg_addr + i, addr_val, 201bdcd8170SKalle Valo 4, HIF_WR_SYNC_BYTE_FIX); 202bdcd8170SKalle Valo if (status) 203bdcd8170SKalle Valo break; 204bdcd8170SKalle Valo } 205bdcd8170SKalle Valo 206bdcd8170SKalle Valo if (status) { 207bdcd8170SKalle Valo ath6kl_err("failed to write initial bytes of 0x%x to window reg: 0x%X\n", 208bdcd8170SKalle Valo addr, reg_addr); 209bdcd8170SKalle Valo return status; 210bdcd8170SKalle Valo } 211bdcd8170SKalle Valo 212bdcd8170SKalle Valo /* 213bdcd8170SKalle Valo * Write the address register again, this time write the whole 214bdcd8170SKalle Valo * 4-byte value. The effect here is that the LSB write causes the 215bdcd8170SKalle Valo * cycle to start, the extra 3 byte write to bytes 1,2,3 has no 216bdcd8170SKalle Valo * effect since we are writing the same values again 217bdcd8170SKalle Valo */ 218bdcd8170SKalle Valo status = hif_read_write_sync(ar, reg_addr, (u8 *)(&addr), 219bdcd8170SKalle Valo 4, HIF_WR_SYNC_BYTE_INC); 220bdcd8170SKalle Valo 221bdcd8170SKalle Valo if (status) { 222bdcd8170SKalle Valo ath6kl_err("failed to write 0x%x to window reg: 0x%X\n", 223bdcd8170SKalle Valo addr, reg_addr); 224bdcd8170SKalle Valo return status; 225bdcd8170SKalle Valo } 226bdcd8170SKalle Valo 227bdcd8170SKalle Valo return 0; 228bdcd8170SKalle Valo } 229bdcd8170SKalle Valo 230bdcd8170SKalle Valo /* 231bdcd8170SKalle Valo * Read from the ATH6KL through its diagnostic window. No cooperation from 232bdcd8170SKalle Valo * the Target is required for this. 233bdcd8170SKalle Valo */ 234bdcd8170SKalle Valo int ath6kl_read_reg_diag(struct ath6kl *ar, u32 *address, u32 *data) 235bdcd8170SKalle Valo { 236bdcd8170SKalle Valo int status; 237bdcd8170SKalle Valo 238bdcd8170SKalle Valo /* set window register to start read cycle */ 239bdcd8170SKalle Valo status = ath6kl_set_addrwin_reg(ar, WINDOW_READ_ADDR_ADDRESS, 240bdcd8170SKalle Valo *address); 241bdcd8170SKalle Valo 242bdcd8170SKalle Valo if (status) 243bdcd8170SKalle Valo return status; 244bdcd8170SKalle Valo 245bdcd8170SKalle Valo /* read the data */ 246bdcd8170SKalle Valo status = hif_read_write_sync(ar, WINDOW_DATA_ADDRESS, (u8 *)data, 247bdcd8170SKalle Valo sizeof(u32), HIF_RD_SYNC_BYTE_INC); 248bdcd8170SKalle Valo if (status) { 249bdcd8170SKalle Valo ath6kl_err("failed to read from window data addr\n"); 250bdcd8170SKalle Valo return status; 251bdcd8170SKalle Valo } 252bdcd8170SKalle Valo 253bdcd8170SKalle Valo return status; 254bdcd8170SKalle Valo } 255bdcd8170SKalle Valo 256bdcd8170SKalle Valo 257bdcd8170SKalle Valo /* 258bdcd8170SKalle Valo * Write to the ATH6KL through its diagnostic window. No cooperation from 259bdcd8170SKalle Valo * the Target is required for this. 260bdcd8170SKalle Valo */ 261bdcd8170SKalle Valo static int ath6kl_write_reg_diag(struct ath6kl *ar, u32 *address, u32 *data) 262bdcd8170SKalle Valo { 263bdcd8170SKalle Valo int status; 264bdcd8170SKalle Valo 265bdcd8170SKalle Valo /* set write data */ 266bdcd8170SKalle Valo status = hif_read_write_sync(ar, WINDOW_DATA_ADDRESS, (u8 *)data, 267bdcd8170SKalle Valo sizeof(u32), HIF_WR_SYNC_BYTE_INC); 268bdcd8170SKalle Valo if (status) { 269bdcd8170SKalle Valo ath6kl_err("failed to write 0x%x to window data addr\n", *data); 270bdcd8170SKalle Valo return status; 271bdcd8170SKalle Valo } 272bdcd8170SKalle Valo 273bdcd8170SKalle Valo /* set window register, which starts the write cycle */ 274bdcd8170SKalle Valo return ath6kl_set_addrwin_reg(ar, WINDOW_WRITE_ADDR_ADDRESS, 275bdcd8170SKalle Valo *address); 276bdcd8170SKalle Valo } 277bdcd8170SKalle Valo 278bdcd8170SKalle Valo int ath6kl_access_datadiag(struct ath6kl *ar, u32 address, 279bdcd8170SKalle Valo u8 *data, u32 length, bool read) 280bdcd8170SKalle Valo { 281bdcd8170SKalle Valo u32 count; 282bdcd8170SKalle Valo int status = 0; 283bdcd8170SKalle Valo 284bdcd8170SKalle Valo for (count = 0; count < length; count += 4, address += 4) { 285bdcd8170SKalle Valo if (read) { 286bdcd8170SKalle Valo status = ath6kl_read_reg_diag(ar, &address, 287bdcd8170SKalle Valo (u32 *) &data[count]); 288bdcd8170SKalle Valo if (status) 289bdcd8170SKalle Valo break; 290bdcd8170SKalle Valo } else { 291bdcd8170SKalle Valo status = ath6kl_write_reg_diag(ar, &address, 292bdcd8170SKalle Valo (u32 *) &data[count]); 293bdcd8170SKalle Valo if (status) 294bdcd8170SKalle Valo break; 295bdcd8170SKalle Valo } 296bdcd8170SKalle Valo } 297bdcd8170SKalle Valo 298bdcd8170SKalle Valo return status; 299bdcd8170SKalle Valo } 300bdcd8170SKalle Valo 301bdcd8170SKalle Valo static void ath6kl_reset_device(struct ath6kl *ar, u32 target_type, 302bdcd8170SKalle Valo bool wait_fot_compltn, bool cold_reset) 303bdcd8170SKalle Valo { 304bdcd8170SKalle Valo int status = 0; 305bdcd8170SKalle Valo u32 address; 306bdcd8170SKalle Valo u32 data; 307bdcd8170SKalle Valo 308bdcd8170SKalle Valo if (target_type != TARGET_TYPE_AR6003) 309bdcd8170SKalle Valo return; 310bdcd8170SKalle Valo 311bdcd8170SKalle Valo data = cold_reset ? RESET_CONTROL_COLD_RST : RESET_CONTROL_MBOX_RST; 312bdcd8170SKalle Valo 313bdcd8170SKalle Valo address = RTC_BASE_ADDRESS; 314bdcd8170SKalle Valo status = ath6kl_write_reg_diag(ar, &address, &data); 315bdcd8170SKalle Valo 316bdcd8170SKalle Valo if (status) 317bdcd8170SKalle Valo ath6kl_err("failed to reset target\n"); 318bdcd8170SKalle Valo } 319bdcd8170SKalle Valo 320bdcd8170SKalle Valo void ath6kl_stop_endpoint(struct net_device *dev, bool keep_profile, 321bdcd8170SKalle Valo bool get_dbglogs) 322bdcd8170SKalle Valo { 323bdcd8170SKalle Valo struct ath6kl *ar = ath6kl_priv(dev); 324bdcd8170SKalle Valo static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 325bdcd8170SKalle Valo bool discon_issued; 326bdcd8170SKalle Valo 327bdcd8170SKalle Valo netif_stop_queue(dev); 328bdcd8170SKalle Valo 329bdcd8170SKalle Valo /* disable the target and the interrupts associated with it */ 330bdcd8170SKalle Valo if (test_bit(WMI_READY, &ar->flag)) { 331bdcd8170SKalle Valo discon_issued = (test_bit(CONNECTED, &ar->flag) || 332bdcd8170SKalle Valo test_bit(CONNECT_PEND, &ar->flag)); 333bdcd8170SKalle Valo ath6kl_disconnect(ar); 334bdcd8170SKalle Valo if (!keep_profile) 335bdcd8170SKalle Valo ath6kl_init_profile_info(ar); 336bdcd8170SKalle Valo 337bdcd8170SKalle Valo del_timer(&ar->disconnect_timer); 338bdcd8170SKalle Valo 339bdcd8170SKalle Valo clear_bit(WMI_READY, &ar->flag); 340bdcd8170SKalle Valo ath6kl_wmi_shutdown(ar->wmi); 341bdcd8170SKalle Valo clear_bit(WMI_ENABLED, &ar->flag); 342bdcd8170SKalle Valo ar->wmi = NULL; 343bdcd8170SKalle Valo 344bdcd8170SKalle Valo /* 345bdcd8170SKalle Valo * After wmi_shudown all WMI events will be dropped. We 346bdcd8170SKalle Valo * need to cleanup the buffers allocated in AP mode and 347bdcd8170SKalle Valo * give disconnect notification to stack, which usually 348bdcd8170SKalle Valo * happens in the disconnect_event. Simulate the disconnect 349bdcd8170SKalle Valo * event by calling the function directly. Sometimes 350bdcd8170SKalle Valo * disconnect_event will be received when the debug logs 351bdcd8170SKalle Valo * are collected. 352bdcd8170SKalle Valo */ 353bdcd8170SKalle Valo if (discon_issued) 354bdcd8170SKalle Valo ath6kl_disconnect_event(ar, DISCONNECT_CMD, 355bdcd8170SKalle Valo (ar->nw_type & AP_NETWORK) ? 356bdcd8170SKalle Valo bcast_mac : ar->bssid, 357bdcd8170SKalle Valo 0, NULL, 0); 358bdcd8170SKalle Valo 359bdcd8170SKalle Valo ar->user_key_ctrl = 0; 360bdcd8170SKalle Valo 361bdcd8170SKalle Valo } else { 362bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, 363bdcd8170SKalle Valo "%s: wmi is not ready 0x%p 0x%p\n", 364bdcd8170SKalle Valo __func__, ar, ar->wmi); 365bdcd8170SKalle Valo 366bdcd8170SKalle Valo /* Shut down WMI if we have started it */ 367bdcd8170SKalle Valo if (test_bit(WMI_ENABLED, &ar->flag)) { 368bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, 369bdcd8170SKalle Valo "%s: shut down wmi\n", __func__); 370bdcd8170SKalle Valo ath6kl_wmi_shutdown(ar->wmi); 371bdcd8170SKalle Valo clear_bit(WMI_ENABLED, &ar->flag); 372bdcd8170SKalle Valo ar->wmi = NULL; 373bdcd8170SKalle Valo } 374bdcd8170SKalle Valo } 375bdcd8170SKalle Valo 376bdcd8170SKalle Valo if (ar->htc_target) { 377bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, "%s: shut down htc\n", __func__); 378bdcd8170SKalle Valo htc_stop(ar->htc_target); 379bdcd8170SKalle Valo } 380bdcd8170SKalle Valo 381bdcd8170SKalle Valo /* 382bdcd8170SKalle Valo * Try to reset the device if we can. The driver may have been 383bdcd8170SKalle Valo * configure NOT to reset the target during a debug session. 384bdcd8170SKalle Valo */ 385bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, 386bdcd8170SKalle Valo "attempting to reset target on instance destroy\n"); 387bdcd8170SKalle Valo ath6kl_reset_device(ar, ar->target_type, true, true); 388bdcd8170SKalle Valo } 389bdcd8170SKalle Valo 390bdcd8170SKalle Valo static void ath6kl_install_static_wep_keys(struct ath6kl *ar) 391bdcd8170SKalle Valo { 392bdcd8170SKalle Valo u8 index; 393bdcd8170SKalle Valo u8 keyusage; 394bdcd8170SKalle Valo 395bdcd8170SKalle Valo for (index = WMI_MIN_KEY_INDEX; index <= WMI_MAX_KEY_INDEX; index++) { 396bdcd8170SKalle Valo if (ar->wep_key_list[index].key_len) { 397bdcd8170SKalle Valo keyusage = GROUP_USAGE; 398bdcd8170SKalle Valo if (index == ar->def_txkey_index) 399bdcd8170SKalle Valo keyusage |= TX_USAGE; 400bdcd8170SKalle Valo 401bdcd8170SKalle Valo ath6kl_wmi_addkey_cmd(ar->wmi, 402bdcd8170SKalle Valo index, 403bdcd8170SKalle Valo WEP_CRYPT, 404bdcd8170SKalle Valo keyusage, 405bdcd8170SKalle Valo ar->wep_key_list[index].key_len, 406bdcd8170SKalle Valo NULL, 407bdcd8170SKalle Valo ar->wep_key_list[index].key, 408bdcd8170SKalle Valo KEY_OP_INIT_VAL, NULL, 409bdcd8170SKalle Valo NO_SYNC_WMIFLAG); 410bdcd8170SKalle Valo } 411bdcd8170SKalle Valo } 412bdcd8170SKalle Valo } 413bdcd8170SKalle Valo 414bdcd8170SKalle Valo static void ath6kl_connect_ap_mode(struct ath6kl *ar, u16 channel, u8 *bssid, 415bdcd8170SKalle Valo u16 listen_int, u16 beacon_int, 416bdcd8170SKalle Valo u8 assoc_resp_len, u8 *assoc_info) 417bdcd8170SKalle Valo { 418bdcd8170SKalle Valo struct net_device *dev = ar->net_dev; 419bdcd8170SKalle Valo struct station_info sinfo; 420bdcd8170SKalle Valo struct ath6kl_req_key *ik; 421bdcd8170SKalle Valo enum crypto_type keyType = NONE_CRYPT; 422bdcd8170SKalle Valo 423bdcd8170SKalle Valo if (memcmp(dev->dev_addr, bssid, ETH_ALEN) == 0) { 424bdcd8170SKalle Valo ik = &ar->ap_mode_bkey; 425bdcd8170SKalle Valo 426bdcd8170SKalle Valo switch (ar->auth_mode) { 427bdcd8170SKalle Valo case NONE_AUTH: 428bdcd8170SKalle Valo if (ar->prwise_crypto == WEP_CRYPT) 429bdcd8170SKalle Valo ath6kl_install_static_wep_keys(ar); 430bdcd8170SKalle Valo break; 431bdcd8170SKalle Valo case WPA_PSK_AUTH: 432bdcd8170SKalle Valo case WPA2_PSK_AUTH: 433bdcd8170SKalle Valo case (WPA_PSK_AUTH|WPA2_PSK_AUTH): 434bdcd8170SKalle Valo switch (ik->ik_type) { 435bdcd8170SKalle Valo case ATH6KL_CIPHER_TKIP: 436bdcd8170SKalle Valo keyType = TKIP_CRYPT; 437bdcd8170SKalle Valo break; 438bdcd8170SKalle Valo case ATH6KL_CIPHER_AES_CCM: 439bdcd8170SKalle Valo keyType = AES_CRYPT; 440bdcd8170SKalle Valo break; 441bdcd8170SKalle Valo default: 442bdcd8170SKalle Valo goto skip_key; 443bdcd8170SKalle Valo } 444bdcd8170SKalle Valo ath6kl_wmi_addkey_cmd(ar->wmi, ik->ik_keyix, keyType, 445bdcd8170SKalle Valo GROUP_USAGE, ik->ik_keylen, 446bdcd8170SKalle Valo (u8 *)&ik->ik_keyrsc, 447bdcd8170SKalle Valo ik->ik_keydata, 448bdcd8170SKalle Valo KEY_OP_INIT_VAL, ik->ik_macaddr, 449bdcd8170SKalle Valo SYNC_BOTH_WMIFLAG); 450bdcd8170SKalle Valo break; 451bdcd8170SKalle Valo } 452bdcd8170SKalle Valo skip_key: 453bdcd8170SKalle Valo set_bit(CONNECTED, &ar->flag); 454bdcd8170SKalle Valo return; 455bdcd8170SKalle Valo } 456bdcd8170SKalle Valo 457bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, "new station %pM aid=%d\n", 458bdcd8170SKalle Valo bssid, channel); 459bdcd8170SKalle Valo 460bdcd8170SKalle Valo ath6kl_add_new_sta(ar, bssid, channel, assoc_info, assoc_resp_len, 461bdcd8170SKalle Valo listen_int & 0xFF, beacon_int, 462bdcd8170SKalle Valo (listen_int >> 8) & 0xFF); 463bdcd8170SKalle Valo 464bdcd8170SKalle Valo /* send event to application */ 465bdcd8170SKalle Valo memset(&sinfo, 0, sizeof(sinfo)); 466bdcd8170SKalle Valo 467bdcd8170SKalle Valo /* TODO: sinfo.generation */ 468bdcd8170SKalle Valo /* TODO: need to deliver (Re)AssocReq IEs somehow.. change in 469bdcd8170SKalle Valo * cfg80211 needed, e.g., by adding those into sinfo 470bdcd8170SKalle Valo */ 471bdcd8170SKalle Valo cfg80211_new_sta(ar->net_dev, bssid, &sinfo, GFP_KERNEL); 472bdcd8170SKalle Valo 473bdcd8170SKalle Valo netif_wake_queue(ar->net_dev); 474bdcd8170SKalle Valo 475bdcd8170SKalle Valo return; 476bdcd8170SKalle Valo } 477bdcd8170SKalle Valo 478bdcd8170SKalle Valo /* Functions for Tx credit handling */ 479bdcd8170SKalle Valo void ath6k_credit_init(struct htc_credit_state_info *cred_info, 480bdcd8170SKalle Valo struct list_head *ep_list, 481bdcd8170SKalle Valo int tot_credits) 482bdcd8170SKalle Valo { 483bdcd8170SKalle Valo struct htc_endpoint_credit_dist *cur_ep_dist; 484bdcd8170SKalle Valo int count; 485bdcd8170SKalle Valo 486bdcd8170SKalle Valo cred_info->cur_free_credits = tot_credits; 487bdcd8170SKalle Valo cred_info->total_avail_credits = tot_credits; 488bdcd8170SKalle Valo 489bdcd8170SKalle Valo list_for_each_entry(cur_ep_dist, ep_list, list) { 490bdcd8170SKalle Valo if (cur_ep_dist->endpoint == ENDPOINT_0) 491bdcd8170SKalle Valo continue; 492bdcd8170SKalle Valo 493bdcd8170SKalle Valo cur_ep_dist->cred_min = cur_ep_dist->cred_per_msg; 494bdcd8170SKalle Valo 495bdcd8170SKalle Valo if (tot_credits > 4) 496bdcd8170SKalle Valo if ((cur_ep_dist->svc_id == WMI_DATA_BK_SVC) || 497bdcd8170SKalle Valo (cur_ep_dist->svc_id == WMI_DATA_BE_SVC)) { 498bdcd8170SKalle Valo ath6kl_deposit_credit_to_ep(cred_info, 499bdcd8170SKalle Valo cur_ep_dist, 500bdcd8170SKalle Valo cur_ep_dist->cred_min); 501bdcd8170SKalle Valo cur_ep_dist->dist_flags |= HTC_EP_ACTIVE; 502bdcd8170SKalle Valo } 503bdcd8170SKalle Valo 504bdcd8170SKalle Valo if (cur_ep_dist->svc_id == WMI_CONTROL_SVC) { 505bdcd8170SKalle Valo ath6kl_deposit_credit_to_ep(cred_info, cur_ep_dist, 506bdcd8170SKalle Valo cur_ep_dist->cred_min); 507bdcd8170SKalle Valo /* 508bdcd8170SKalle Valo * Control service is always marked active, it 509bdcd8170SKalle Valo * never goes inactive EVER. 510bdcd8170SKalle Valo */ 511bdcd8170SKalle Valo cur_ep_dist->dist_flags |= HTC_EP_ACTIVE; 512bdcd8170SKalle Valo } else if (cur_ep_dist->svc_id == WMI_DATA_BK_SVC) 513bdcd8170SKalle Valo /* this is the lowest priority data endpoint */ 514bdcd8170SKalle Valo cred_info->lowestpri_ep_dist = cur_ep_dist->list; 515bdcd8170SKalle Valo 516bdcd8170SKalle Valo /* 517bdcd8170SKalle Valo * Streams have to be created (explicit | implicit) for all 518bdcd8170SKalle Valo * kinds of traffic. BE endpoints are also inactive in the 519bdcd8170SKalle Valo * beginning. When BE traffic starts it creates implicit 520bdcd8170SKalle Valo * streams that redistributes credits. 521bdcd8170SKalle Valo * 522bdcd8170SKalle Valo * Note: all other endpoints have minimums set but are 523bdcd8170SKalle Valo * initially given NO credits. credits will be distributed 524bdcd8170SKalle Valo * as traffic activity demands 525bdcd8170SKalle Valo */ 526bdcd8170SKalle Valo } 527bdcd8170SKalle Valo 528bdcd8170SKalle Valo WARN_ON(cred_info->cur_free_credits <= 0); 529bdcd8170SKalle Valo 530bdcd8170SKalle Valo list_for_each_entry(cur_ep_dist, ep_list, list) { 531bdcd8170SKalle Valo if (cur_ep_dist->endpoint == ENDPOINT_0) 532bdcd8170SKalle Valo continue; 533bdcd8170SKalle Valo 534bdcd8170SKalle Valo if (cur_ep_dist->svc_id == WMI_CONTROL_SVC) 535bdcd8170SKalle Valo cur_ep_dist->cred_norm = cur_ep_dist->cred_per_msg; 536bdcd8170SKalle Valo else { 537bdcd8170SKalle Valo /* 538bdcd8170SKalle Valo * For the remaining data endpoints, we assume that 539bdcd8170SKalle Valo * each cred_per_msg are the same. We use a simple 540bdcd8170SKalle Valo * calculation here, we take the remaining credits 541bdcd8170SKalle Valo * and determine how many max messages this can 542bdcd8170SKalle Valo * cover and then set each endpoint's normal value 543bdcd8170SKalle Valo * equal to 3/4 this amount. 544bdcd8170SKalle Valo */ 545bdcd8170SKalle Valo count = (cred_info->cur_free_credits / 546bdcd8170SKalle Valo cur_ep_dist->cred_per_msg) 547bdcd8170SKalle Valo * cur_ep_dist->cred_per_msg; 548bdcd8170SKalle Valo count = (count * 3) >> 2; 549bdcd8170SKalle Valo count = max(count, cur_ep_dist->cred_per_msg); 550bdcd8170SKalle Valo cur_ep_dist->cred_norm = count; 551bdcd8170SKalle Valo 552bdcd8170SKalle Valo } 553bdcd8170SKalle Valo } 554bdcd8170SKalle Valo } 555bdcd8170SKalle Valo 556bdcd8170SKalle Valo /* initialize and setup credit distribution */ 557bdcd8170SKalle Valo int ath6k_setup_credit_dist(void *htc_handle, 558bdcd8170SKalle Valo struct htc_credit_state_info *cred_info) 559bdcd8170SKalle Valo { 560bdcd8170SKalle Valo u16 servicepriority[5]; 561bdcd8170SKalle Valo 562bdcd8170SKalle Valo memset(cred_info, 0, sizeof(struct htc_credit_state_info)); 563bdcd8170SKalle Valo 564bdcd8170SKalle Valo servicepriority[0] = WMI_CONTROL_SVC; /* highest */ 565bdcd8170SKalle Valo servicepriority[1] = WMI_DATA_VO_SVC; 566bdcd8170SKalle Valo servicepriority[2] = WMI_DATA_VI_SVC; 567bdcd8170SKalle Valo servicepriority[3] = WMI_DATA_BE_SVC; 568bdcd8170SKalle Valo servicepriority[4] = WMI_DATA_BK_SVC; /* lowest */ 569bdcd8170SKalle Valo 570bdcd8170SKalle Valo /* set priority list */ 571bdcd8170SKalle Valo htc_set_credit_dist(htc_handle, cred_info, servicepriority, 5); 572bdcd8170SKalle Valo 573bdcd8170SKalle Valo return 0; 574bdcd8170SKalle Valo } 575bdcd8170SKalle Valo 576bdcd8170SKalle Valo /* reduce an ep's credits back to a set limit */ 577bdcd8170SKalle Valo static void ath6k_reduce_credits(struct htc_credit_state_info *cred_info, 578bdcd8170SKalle Valo struct htc_endpoint_credit_dist *ep_dist, 579bdcd8170SKalle Valo int limit) 580bdcd8170SKalle Valo { 581bdcd8170SKalle Valo int credits; 582bdcd8170SKalle Valo 583bdcd8170SKalle Valo ep_dist->cred_assngd = limit; 584bdcd8170SKalle Valo 585bdcd8170SKalle Valo if (ep_dist->credits <= limit) 586bdcd8170SKalle Valo return; 587bdcd8170SKalle Valo 588bdcd8170SKalle Valo credits = ep_dist->credits - limit; 589bdcd8170SKalle Valo ep_dist->credits -= credits; 590bdcd8170SKalle Valo cred_info->cur_free_credits += credits; 591bdcd8170SKalle Valo } 592bdcd8170SKalle Valo 593bdcd8170SKalle Valo static void ath6k_credit_update(struct htc_credit_state_info *cred_info, 594bdcd8170SKalle Valo struct list_head *epdist_list) 595bdcd8170SKalle Valo { 596bdcd8170SKalle Valo struct htc_endpoint_credit_dist *cur_dist_list; 597bdcd8170SKalle Valo 598bdcd8170SKalle Valo list_for_each_entry(cur_dist_list, epdist_list, list) { 599bdcd8170SKalle Valo if (cur_dist_list->endpoint == ENDPOINT_0) 600bdcd8170SKalle Valo continue; 601bdcd8170SKalle Valo 602bdcd8170SKalle Valo if (cur_dist_list->cred_to_dist > 0) { 603bdcd8170SKalle Valo cur_dist_list->credits += 604bdcd8170SKalle Valo cur_dist_list->cred_to_dist; 605bdcd8170SKalle Valo cur_dist_list->cred_to_dist = 0; 606bdcd8170SKalle Valo if (cur_dist_list->credits > 607bdcd8170SKalle Valo cur_dist_list->cred_assngd) 608bdcd8170SKalle Valo ath6k_reduce_credits(cred_info, 609bdcd8170SKalle Valo cur_dist_list, 610bdcd8170SKalle Valo cur_dist_list->cred_assngd); 611bdcd8170SKalle Valo 612bdcd8170SKalle Valo if (cur_dist_list->credits > 613bdcd8170SKalle Valo cur_dist_list->cred_norm) 614bdcd8170SKalle Valo ath6k_reduce_credits(cred_info, cur_dist_list, 615bdcd8170SKalle Valo cur_dist_list->cred_norm); 616bdcd8170SKalle Valo 617bdcd8170SKalle Valo if (!(cur_dist_list->dist_flags & HTC_EP_ACTIVE)) { 618bdcd8170SKalle Valo if (cur_dist_list->txq_depth == 0) 619bdcd8170SKalle Valo ath6k_reduce_credits(cred_info, 620bdcd8170SKalle Valo cur_dist_list, 0); 621bdcd8170SKalle Valo } 622bdcd8170SKalle Valo } 623bdcd8170SKalle Valo } 624bdcd8170SKalle Valo } 625bdcd8170SKalle Valo 626bdcd8170SKalle Valo /* 627bdcd8170SKalle Valo * HTC has an endpoint that needs credits, ep_dist is the endpoint in 628bdcd8170SKalle Valo * question. 629bdcd8170SKalle Valo */ 630bdcd8170SKalle Valo void ath6k_seek_credits(struct htc_credit_state_info *cred_info, 631bdcd8170SKalle Valo struct htc_endpoint_credit_dist *ep_dist) 632bdcd8170SKalle Valo { 633bdcd8170SKalle Valo struct htc_endpoint_credit_dist *curdist_list; 634bdcd8170SKalle Valo int credits = 0; 635bdcd8170SKalle Valo int need; 636bdcd8170SKalle Valo 637bdcd8170SKalle Valo if (ep_dist->svc_id == WMI_CONTROL_SVC) 638bdcd8170SKalle Valo goto out; 639bdcd8170SKalle Valo 640bdcd8170SKalle Valo if ((ep_dist->svc_id == WMI_DATA_VI_SVC) || 641bdcd8170SKalle Valo (ep_dist->svc_id == WMI_DATA_VO_SVC)) 642bdcd8170SKalle Valo if ((ep_dist->cred_assngd >= ep_dist->cred_norm)) 643bdcd8170SKalle Valo goto out; 644bdcd8170SKalle Valo 645bdcd8170SKalle Valo /* 646bdcd8170SKalle Valo * For all other services, we follow a simple algorithm of: 647bdcd8170SKalle Valo * 648bdcd8170SKalle Valo * 1. checking the free pool for credits 649bdcd8170SKalle Valo * 2. checking lower priority endpoints for credits to take 650bdcd8170SKalle Valo */ 651bdcd8170SKalle Valo 652bdcd8170SKalle Valo credits = min(cred_info->cur_free_credits, ep_dist->seek_cred); 653bdcd8170SKalle Valo 654bdcd8170SKalle Valo if (credits >= ep_dist->seek_cred) 655bdcd8170SKalle Valo goto out; 656bdcd8170SKalle Valo 657bdcd8170SKalle Valo /* 658bdcd8170SKalle Valo * We don't have enough in the free pool, try taking away from 659bdcd8170SKalle Valo * lower priority services The rule for taking away credits: 660bdcd8170SKalle Valo * 661bdcd8170SKalle Valo * 1. Only take from lower priority endpoints 662bdcd8170SKalle Valo * 2. Only take what is allocated above the minimum (never 663bdcd8170SKalle Valo * starve an endpoint completely) 664bdcd8170SKalle Valo * 3. Only take what you need. 665bdcd8170SKalle Valo */ 666bdcd8170SKalle Valo 667bdcd8170SKalle Valo list_for_each_entry_reverse(curdist_list, 668bdcd8170SKalle Valo &cred_info->lowestpri_ep_dist, 669bdcd8170SKalle Valo list) { 670bdcd8170SKalle Valo if (curdist_list == ep_dist) 671bdcd8170SKalle Valo break; 672bdcd8170SKalle Valo 673bdcd8170SKalle Valo need = ep_dist->seek_cred - cred_info->cur_free_credits; 674bdcd8170SKalle Valo 675bdcd8170SKalle Valo if ((curdist_list->cred_assngd - need) >= 676bdcd8170SKalle Valo curdist_list->cred_min) { 677bdcd8170SKalle Valo /* 678bdcd8170SKalle Valo * The current one has been allocated more than 679bdcd8170SKalle Valo * it's minimum and it has enough credits assigned 680bdcd8170SKalle Valo * above it's minimum to fulfill our need try to 681bdcd8170SKalle Valo * take away just enough to fulfill our need. 682bdcd8170SKalle Valo */ 683bdcd8170SKalle Valo ath6k_reduce_credits(cred_info, curdist_list, 684bdcd8170SKalle Valo curdist_list->cred_assngd - need); 685bdcd8170SKalle Valo 686bdcd8170SKalle Valo if (cred_info->cur_free_credits >= 687bdcd8170SKalle Valo ep_dist->seek_cred) 688bdcd8170SKalle Valo break; 689bdcd8170SKalle Valo } 690bdcd8170SKalle Valo 691bdcd8170SKalle Valo if (curdist_list->endpoint == ENDPOINT_0) 692bdcd8170SKalle Valo break; 693bdcd8170SKalle Valo } 694bdcd8170SKalle Valo 695bdcd8170SKalle Valo credits = min(cred_info->cur_free_credits, ep_dist->seek_cred); 696bdcd8170SKalle Valo 697bdcd8170SKalle Valo out: 698bdcd8170SKalle Valo /* did we find some credits? */ 699bdcd8170SKalle Valo if (credits) 700bdcd8170SKalle Valo ath6kl_deposit_credit_to_ep(cred_info, ep_dist, credits); 701bdcd8170SKalle Valo 702bdcd8170SKalle Valo ep_dist->seek_cred = 0; 703bdcd8170SKalle Valo } 704bdcd8170SKalle Valo 705bdcd8170SKalle Valo /* redistribute credits based on activity change */ 706bdcd8170SKalle Valo static void ath6k_redistribute_credits(struct htc_credit_state_info *info, 707bdcd8170SKalle Valo struct list_head *ep_dist_list) 708bdcd8170SKalle Valo { 709bdcd8170SKalle Valo struct htc_endpoint_credit_dist *curdist_list; 710bdcd8170SKalle Valo 711bdcd8170SKalle Valo list_for_each_entry(curdist_list, ep_dist_list, list) { 712bdcd8170SKalle Valo if (curdist_list->endpoint == ENDPOINT_0) 713bdcd8170SKalle Valo continue; 714bdcd8170SKalle Valo 715bdcd8170SKalle Valo if ((curdist_list->svc_id == WMI_DATA_BK_SVC) || 716bdcd8170SKalle Valo (curdist_list->svc_id == WMI_DATA_BE_SVC)) 717bdcd8170SKalle Valo curdist_list->dist_flags |= HTC_EP_ACTIVE; 718bdcd8170SKalle Valo 719bdcd8170SKalle Valo if ((curdist_list->svc_id != WMI_CONTROL_SVC) && 720bdcd8170SKalle Valo !(curdist_list->dist_flags & HTC_EP_ACTIVE)) { 721bdcd8170SKalle Valo if (curdist_list->txq_depth == 0) 722bdcd8170SKalle Valo ath6k_reduce_credits(info, 723bdcd8170SKalle Valo curdist_list, 0); 724bdcd8170SKalle Valo else 725bdcd8170SKalle Valo ath6k_reduce_credits(info, 726bdcd8170SKalle Valo curdist_list, 727bdcd8170SKalle Valo curdist_list->cred_min); 728bdcd8170SKalle Valo } 729bdcd8170SKalle Valo } 730bdcd8170SKalle Valo } 731bdcd8170SKalle Valo 732bdcd8170SKalle Valo /* 733bdcd8170SKalle Valo * 734bdcd8170SKalle Valo * This function is invoked whenever endpoints require credit 735bdcd8170SKalle Valo * distributions. A lock is held while this function is invoked, this 736bdcd8170SKalle Valo * function shall NOT block. The ep_dist_list is a list of distribution 737bdcd8170SKalle Valo * structures in prioritized order as defined by the call to the 738bdcd8170SKalle Valo * htc_set_credit_dist() api. 739bdcd8170SKalle Valo */ 740bdcd8170SKalle Valo void ath6k_credit_distribute(struct htc_credit_state_info *cred_info, 741bdcd8170SKalle Valo struct list_head *ep_dist_list, 742bdcd8170SKalle Valo enum htc_credit_dist_reason reason) 743bdcd8170SKalle Valo { 744bdcd8170SKalle Valo switch (reason) { 745bdcd8170SKalle Valo case HTC_CREDIT_DIST_SEND_COMPLETE: 746bdcd8170SKalle Valo ath6k_credit_update(cred_info, ep_dist_list); 747bdcd8170SKalle Valo break; 748bdcd8170SKalle Valo case HTC_CREDIT_DIST_ACTIVITY_CHANGE: 749bdcd8170SKalle Valo ath6k_redistribute_credits(cred_info, ep_dist_list); 750bdcd8170SKalle Valo break; 751bdcd8170SKalle Valo default: 752bdcd8170SKalle Valo break; 753bdcd8170SKalle Valo } 754bdcd8170SKalle Valo 755bdcd8170SKalle Valo WARN_ON(cred_info->cur_free_credits > cred_info->total_avail_credits); 756bdcd8170SKalle Valo WARN_ON(cred_info->cur_free_credits < 0); 757bdcd8170SKalle Valo } 758bdcd8170SKalle Valo 759bdcd8170SKalle Valo void disconnect_timer_handler(unsigned long ptr) 760bdcd8170SKalle Valo { 761bdcd8170SKalle Valo struct net_device *dev = (struct net_device *)ptr; 762bdcd8170SKalle Valo struct ath6kl *ar = ath6kl_priv(dev); 763bdcd8170SKalle Valo 764bdcd8170SKalle Valo ath6kl_init_profile_info(ar); 765bdcd8170SKalle Valo ath6kl_disconnect(ar); 766bdcd8170SKalle Valo } 767bdcd8170SKalle Valo 768bdcd8170SKalle Valo void ath6kl_disconnect(struct ath6kl *ar) 769bdcd8170SKalle Valo { 770bdcd8170SKalle Valo if (test_bit(CONNECTED, &ar->flag) || 771bdcd8170SKalle Valo test_bit(CONNECT_PEND, &ar->flag)) { 772bdcd8170SKalle Valo ath6kl_wmi_disconnect_cmd(ar->wmi); 773bdcd8170SKalle Valo /* 774bdcd8170SKalle Valo * Disconnect command is issued, clear the connect pending 775bdcd8170SKalle Valo * flag. The connected flag will be cleared in 776bdcd8170SKalle Valo * disconnect event notification. 777bdcd8170SKalle Valo */ 778bdcd8170SKalle Valo clear_bit(CONNECT_PEND, &ar->flag); 779bdcd8170SKalle Valo } 780bdcd8170SKalle Valo } 781bdcd8170SKalle Valo 782bdcd8170SKalle Valo /* WMI Event handlers */ 783bdcd8170SKalle Valo 784bdcd8170SKalle Valo static const char *get_hw_id_string(u32 id) 785bdcd8170SKalle Valo { 786bdcd8170SKalle Valo switch (id) { 787bdcd8170SKalle Valo case AR6003_REV1_VERSION: 788bdcd8170SKalle Valo return "1.0"; 789bdcd8170SKalle Valo case AR6003_REV2_VERSION: 790bdcd8170SKalle Valo return "2.0"; 791bdcd8170SKalle Valo case AR6003_REV3_VERSION: 792bdcd8170SKalle Valo return "2.1.1"; 793bdcd8170SKalle Valo default: 794bdcd8170SKalle Valo return "unknown"; 795bdcd8170SKalle Valo } 796bdcd8170SKalle Valo } 797bdcd8170SKalle Valo 798bdcd8170SKalle Valo void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver) 799bdcd8170SKalle Valo { 800bdcd8170SKalle Valo struct ath6kl *ar = devt; 801bdcd8170SKalle Valo struct net_device *dev = ar->net_dev; 802bdcd8170SKalle Valo 803bdcd8170SKalle Valo memcpy(dev->dev_addr, datap, ETH_ALEN); 804bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, "%s: mac addr = %pM\n", 805bdcd8170SKalle Valo __func__, dev->dev_addr); 806bdcd8170SKalle Valo 807bdcd8170SKalle Valo ar->version.wlan_ver = sw_ver; 808bdcd8170SKalle Valo ar->version.abi_ver = abi_ver; 809bdcd8170SKalle Valo 810bdcd8170SKalle Valo snprintf(ar->wdev->wiphy->fw_version, 811bdcd8170SKalle Valo sizeof(ar->wdev->wiphy->fw_version), 812bdcd8170SKalle Valo "%u.%u.%u.%u", 813bdcd8170SKalle Valo (ar->version.wlan_ver & 0xf0000000) >> 28, 814bdcd8170SKalle Valo (ar->version.wlan_ver & 0x0f000000) >> 24, 815bdcd8170SKalle Valo (ar->version.wlan_ver & 0x00ff0000) >> 16, 816bdcd8170SKalle Valo (ar->version.wlan_ver & 0x0000ffff)); 817bdcd8170SKalle Valo 818bdcd8170SKalle Valo /* indicate to the waiting thread that the ready event was received */ 819bdcd8170SKalle Valo set_bit(WMI_READY, &ar->flag); 820bdcd8170SKalle Valo wake_up(&ar->event_wq); 821bdcd8170SKalle Valo 822bdcd8170SKalle Valo ath6kl_info("hw %s fw %s\n", 823bdcd8170SKalle Valo get_hw_id_string(ar->wdev->wiphy->hw_version), 824bdcd8170SKalle Valo ar->wdev->wiphy->fw_version); 825bdcd8170SKalle Valo } 826bdcd8170SKalle Valo 827bdcd8170SKalle Valo void ath6kl_scan_complete_evt(struct ath6kl *ar, int status) 828bdcd8170SKalle Valo { 829bdcd8170SKalle Valo ath6kl_cfg80211_scan_complete_event(ar, status); 830bdcd8170SKalle Valo 831bdcd8170SKalle Valo if (!ar->usr_bss_filter) 832bdcd8170SKalle Valo ath6kl_wmi_bssfilter_cmd(ar->wmi, NONE_BSS_FILTER, 0); 833bdcd8170SKalle Valo 834bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_WLAN_SCAN, "scan complete: %d\n", status); 835bdcd8170SKalle Valo } 836bdcd8170SKalle Valo 837bdcd8170SKalle Valo void ath6kl_connect_event(struct ath6kl *ar, u16 channel, u8 *bssid, 838bdcd8170SKalle Valo u16 listen_int, u16 beacon_int, 839bdcd8170SKalle Valo enum network_type net_type, u8 beacon_ie_len, 840bdcd8170SKalle Valo u8 assoc_req_len, u8 assoc_resp_len, 841bdcd8170SKalle Valo u8 *assoc_info) 842bdcd8170SKalle Valo { 843bdcd8170SKalle Valo unsigned long flags; 844bdcd8170SKalle Valo 845bdcd8170SKalle Valo if (ar->nw_type == AP_NETWORK) { 846bdcd8170SKalle Valo ath6kl_connect_ap_mode(ar, channel, bssid, listen_int, 847bdcd8170SKalle Valo beacon_int, assoc_resp_len, 848bdcd8170SKalle Valo assoc_info); 849bdcd8170SKalle Valo return; 850bdcd8170SKalle Valo } 851bdcd8170SKalle Valo 852bdcd8170SKalle Valo ath6kl_cfg80211_connect_event(ar, channel, bssid, 853bdcd8170SKalle Valo listen_int, beacon_int, 854bdcd8170SKalle Valo net_type, beacon_ie_len, 855bdcd8170SKalle Valo assoc_req_len, assoc_resp_len, 856bdcd8170SKalle Valo assoc_info); 857bdcd8170SKalle Valo 858bdcd8170SKalle Valo memcpy(ar->bssid, bssid, sizeof(ar->bssid)); 859bdcd8170SKalle Valo ar->bss_ch = channel; 860bdcd8170SKalle Valo 861bdcd8170SKalle Valo if ((ar->nw_type == INFRA_NETWORK)) 862bdcd8170SKalle Valo ath6kl_wmi_listeninterval_cmd(ar->wmi, ar->listen_intvl_t, 863bdcd8170SKalle Valo ar->listen_intvl_b); 864bdcd8170SKalle Valo 865bdcd8170SKalle Valo netif_wake_queue(ar->net_dev); 866bdcd8170SKalle Valo 867bdcd8170SKalle Valo /* Update connect & link status atomically */ 868bdcd8170SKalle Valo spin_lock_irqsave(&ar->lock, flags); 869bdcd8170SKalle Valo set_bit(CONNECTED, &ar->flag); 870bdcd8170SKalle Valo clear_bit(CONNECT_PEND, &ar->flag); 871bdcd8170SKalle Valo netif_carrier_on(ar->net_dev); 872bdcd8170SKalle Valo spin_unlock_irqrestore(&ar->lock, flags); 873bdcd8170SKalle Valo 874bdcd8170SKalle Valo aggr_reset_state(ar->aggr_cntxt); 875bdcd8170SKalle Valo ar->reconnect_flag = 0; 876bdcd8170SKalle Valo 877bdcd8170SKalle Valo if ((ar->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) { 878bdcd8170SKalle Valo memset(ar->node_map, 0, sizeof(ar->node_map)); 879bdcd8170SKalle Valo ar->node_num = 0; 880bdcd8170SKalle Valo ar->next_ep_id = ENDPOINT_2; 881bdcd8170SKalle Valo } 882bdcd8170SKalle Valo 883bdcd8170SKalle Valo if (!ar->usr_bss_filter) 884bdcd8170SKalle Valo ath6kl_wmi_bssfilter_cmd(ar->wmi, NONE_BSS_FILTER, 0); 885bdcd8170SKalle Valo } 886bdcd8170SKalle Valo 887bdcd8170SKalle Valo void ath6kl_tkip_micerr_event(struct ath6kl *ar, u8 keyid, bool ismcast) 888bdcd8170SKalle Valo { 889bdcd8170SKalle Valo struct ath6kl_sta *sta; 890bdcd8170SKalle Valo u8 tsc[6]; 891bdcd8170SKalle Valo /* 892bdcd8170SKalle Valo * For AP case, keyid will have aid of STA which sent pkt with 893bdcd8170SKalle Valo * MIC error. Use this aid to get MAC & send it to hostapd. 894bdcd8170SKalle Valo */ 895bdcd8170SKalle Valo if (ar->nw_type == AP_NETWORK) { 896bdcd8170SKalle Valo sta = ath6kl_find_sta_by_aid(ar, (keyid >> 2)); 897bdcd8170SKalle Valo if (!sta) 898bdcd8170SKalle Valo return; 899bdcd8170SKalle Valo 900bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, 901bdcd8170SKalle Valo "ap tkip mic error received from aid=%d\n", keyid); 902bdcd8170SKalle Valo 903bdcd8170SKalle Valo memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */ 904bdcd8170SKalle Valo cfg80211_michael_mic_failure(ar->net_dev, sta->mac, 905bdcd8170SKalle Valo NL80211_KEYTYPE_PAIRWISE, keyid, 906bdcd8170SKalle Valo tsc, GFP_KERNEL); 907bdcd8170SKalle Valo } else 908bdcd8170SKalle Valo ath6kl_cfg80211_tkip_micerr_event(ar, keyid, ismcast); 909bdcd8170SKalle Valo 910bdcd8170SKalle Valo } 911bdcd8170SKalle Valo 912bdcd8170SKalle Valo static void ath6kl_update_target_stats(struct ath6kl *ar, u8 *ptr, u32 len) 913bdcd8170SKalle Valo { 914bdcd8170SKalle Valo struct wmi_target_stats *tgt_stats = 915bdcd8170SKalle Valo (struct wmi_target_stats *) ptr; 916bdcd8170SKalle Valo struct target_stats *stats = &ar->target_stats; 917bdcd8170SKalle Valo struct tkip_ccmp_stats *ccmp_stats; 918bdcd8170SKalle Valo struct bss *conn_bss = NULL; 919bdcd8170SKalle Valo struct cserv_stats *c_stats; 920bdcd8170SKalle Valo u8 ac; 921bdcd8170SKalle Valo 922bdcd8170SKalle Valo if (len < sizeof(*tgt_stats)) 923bdcd8170SKalle Valo return; 924bdcd8170SKalle Valo 925bdcd8170SKalle Valo /* update the RSSI of the connected bss */ 926bdcd8170SKalle Valo if (test_bit(CONNECTED, &ar->flag)) { 927bdcd8170SKalle Valo conn_bss = ath6kl_wmi_find_node(ar->wmi, ar->bssid); 928bdcd8170SKalle Valo if (conn_bss) { 929bdcd8170SKalle Valo c_stats = &tgt_stats->cserv_stats; 930bdcd8170SKalle Valo conn_bss->ni_rssi = 931bdcd8170SKalle Valo a_sle16_to_cpu(c_stats->cs_ave_beacon_rssi); 932bdcd8170SKalle Valo conn_bss->ni_snr = 933bdcd8170SKalle Valo tgt_stats->cserv_stats.cs_ave_beacon_snr; 934bdcd8170SKalle Valo ath6kl_wmi_node_return(ar->wmi, conn_bss); 935bdcd8170SKalle Valo } 936bdcd8170SKalle Valo } 937bdcd8170SKalle Valo 938bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_TRC, "updating target stats\n"); 939bdcd8170SKalle Valo 940bdcd8170SKalle Valo stats->tx_pkt += le32_to_cpu(tgt_stats->stats.tx.pkt); 941bdcd8170SKalle Valo stats->tx_byte += le32_to_cpu(tgt_stats->stats.tx.byte); 942bdcd8170SKalle Valo stats->tx_ucast_pkt += le32_to_cpu(tgt_stats->stats.tx.ucast_pkt); 943bdcd8170SKalle Valo stats->tx_ucast_byte += le32_to_cpu(tgt_stats->stats.tx.ucast_byte); 944bdcd8170SKalle Valo stats->tx_mcast_pkt += le32_to_cpu(tgt_stats->stats.tx.mcast_pkt); 945bdcd8170SKalle Valo stats->tx_mcast_byte += le32_to_cpu(tgt_stats->stats.tx.mcast_byte); 946bdcd8170SKalle Valo stats->tx_bcast_pkt += le32_to_cpu(tgt_stats->stats.tx.bcast_pkt); 947bdcd8170SKalle Valo stats->tx_bcast_byte += le32_to_cpu(tgt_stats->stats.tx.bcast_byte); 948bdcd8170SKalle Valo stats->tx_rts_success_cnt += 949bdcd8170SKalle Valo le32_to_cpu(tgt_stats->stats.tx.rts_success_cnt); 950bdcd8170SKalle Valo 951bdcd8170SKalle Valo for (ac = 0; ac < WMM_NUM_AC; ac++) 952bdcd8170SKalle Valo stats->tx_pkt_per_ac[ac] += 953bdcd8170SKalle Valo le32_to_cpu(tgt_stats->stats.tx.pkt_per_ac[ac]); 954bdcd8170SKalle Valo 955bdcd8170SKalle Valo stats->tx_err += le32_to_cpu(tgt_stats->stats.tx.err); 956bdcd8170SKalle Valo stats->tx_fail_cnt += le32_to_cpu(tgt_stats->stats.tx.fail_cnt); 957bdcd8170SKalle Valo stats->tx_retry_cnt += le32_to_cpu(tgt_stats->stats.tx.retry_cnt); 958bdcd8170SKalle Valo stats->tx_mult_retry_cnt += 959bdcd8170SKalle Valo le32_to_cpu(tgt_stats->stats.tx.mult_retry_cnt); 960bdcd8170SKalle Valo stats->tx_rts_fail_cnt += 961bdcd8170SKalle Valo le32_to_cpu(tgt_stats->stats.tx.rts_fail_cnt); 962bdcd8170SKalle Valo stats->tx_ucast_rate = 963bdcd8170SKalle Valo ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.tx.ucast_rate)); 964bdcd8170SKalle Valo 965bdcd8170SKalle Valo stats->rx_pkt += le32_to_cpu(tgt_stats->stats.rx.pkt); 966bdcd8170SKalle Valo stats->rx_byte += le32_to_cpu(tgt_stats->stats.rx.byte); 967bdcd8170SKalle Valo stats->rx_ucast_pkt += le32_to_cpu(tgt_stats->stats.rx.ucast_pkt); 968bdcd8170SKalle Valo stats->rx_ucast_byte += le32_to_cpu(tgt_stats->stats.rx.ucast_byte); 969bdcd8170SKalle Valo stats->rx_mcast_pkt += le32_to_cpu(tgt_stats->stats.rx.mcast_pkt); 970bdcd8170SKalle Valo stats->rx_mcast_byte += le32_to_cpu(tgt_stats->stats.rx.mcast_byte); 971bdcd8170SKalle Valo stats->rx_bcast_pkt += le32_to_cpu(tgt_stats->stats.rx.bcast_pkt); 972bdcd8170SKalle Valo stats->rx_bcast_byte += le32_to_cpu(tgt_stats->stats.rx.bcast_byte); 973bdcd8170SKalle Valo stats->rx_frgment_pkt += le32_to_cpu(tgt_stats->stats.rx.frgment_pkt); 974bdcd8170SKalle Valo stats->rx_err += le32_to_cpu(tgt_stats->stats.rx.err); 975bdcd8170SKalle Valo stats->rx_crc_err += le32_to_cpu(tgt_stats->stats.rx.crc_err); 976bdcd8170SKalle Valo stats->rx_key_cache_miss += 977bdcd8170SKalle Valo le32_to_cpu(tgt_stats->stats.rx.key_cache_miss); 978bdcd8170SKalle Valo stats->rx_decrypt_err += le32_to_cpu(tgt_stats->stats.rx.decrypt_err); 979bdcd8170SKalle Valo stats->rx_dupl_frame += le32_to_cpu(tgt_stats->stats.rx.dupl_frame); 980bdcd8170SKalle Valo stats->rx_ucast_rate = 981bdcd8170SKalle Valo ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.rx.ucast_rate)); 982bdcd8170SKalle Valo 983bdcd8170SKalle Valo ccmp_stats = &tgt_stats->stats.tkip_ccmp_stats; 984bdcd8170SKalle Valo 985bdcd8170SKalle Valo stats->tkip_local_mic_fail += 986bdcd8170SKalle Valo le32_to_cpu(ccmp_stats->tkip_local_mic_fail); 987bdcd8170SKalle Valo stats->tkip_cnter_measures_invoked += 988bdcd8170SKalle Valo le32_to_cpu(ccmp_stats->tkip_cnter_measures_invoked); 989bdcd8170SKalle Valo stats->tkip_fmt_err += le32_to_cpu(ccmp_stats->tkip_fmt_err); 990bdcd8170SKalle Valo 991bdcd8170SKalle Valo stats->ccmp_fmt_err += le32_to_cpu(ccmp_stats->ccmp_fmt_err); 992bdcd8170SKalle Valo stats->ccmp_replays += le32_to_cpu(ccmp_stats->ccmp_replays); 993bdcd8170SKalle Valo 994bdcd8170SKalle Valo stats->pwr_save_fail_cnt += 995bdcd8170SKalle Valo le32_to_cpu(tgt_stats->pm_stats.pwr_save_failure_cnt); 996bdcd8170SKalle Valo stats->noise_floor_calib = 997bdcd8170SKalle Valo a_sle32_to_cpu(tgt_stats->noise_floor_calib); 998bdcd8170SKalle Valo 999bdcd8170SKalle Valo stats->cs_bmiss_cnt += 1000bdcd8170SKalle Valo le32_to_cpu(tgt_stats->cserv_stats.cs_bmiss_cnt); 1001bdcd8170SKalle Valo stats->cs_low_rssi_cnt += 1002bdcd8170SKalle Valo le32_to_cpu(tgt_stats->cserv_stats.cs_low_rssi_cnt); 1003bdcd8170SKalle Valo stats->cs_connect_cnt += 1004bdcd8170SKalle Valo le16_to_cpu(tgt_stats->cserv_stats.cs_connect_cnt); 1005bdcd8170SKalle Valo stats->cs_discon_cnt += 1006bdcd8170SKalle Valo le16_to_cpu(tgt_stats->cserv_stats.cs_discon_cnt); 1007bdcd8170SKalle Valo 1008bdcd8170SKalle Valo stats->cs_ave_beacon_rssi = 1009bdcd8170SKalle Valo a_sle16_to_cpu(tgt_stats->cserv_stats.cs_ave_beacon_rssi); 1010bdcd8170SKalle Valo 1011bdcd8170SKalle Valo stats->cs_last_roam_msec = 1012bdcd8170SKalle Valo tgt_stats->cserv_stats.cs_last_roam_msec; 1013bdcd8170SKalle Valo stats->cs_snr = tgt_stats->cserv_stats.cs_snr; 1014bdcd8170SKalle Valo stats->cs_rssi = a_sle16_to_cpu(tgt_stats->cserv_stats.cs_rssi); 1015bdcd8170SKalle Valo 1016bdcd8170SKalle Valo stats->lq_val = le32_to_cpu(tgt_stats->lq_val); 1017bdcd8170SKalle Valo 1018bdcd8170SKalle Valo stats->wow_pkt_dropped += 1019bdcd8170SKalle Valo le32_to_cpu(tgt_stats->wow_stats.wow_pkt_dropped); 1020bdcd8170SKalle Valo stats->wow_host_pkt_wakeups += 1021bdcd8170SKalle Valo tgt_stats->wow_stats.wow_host_pkt_wakeups; 1022bdcd8170SKalle Valo stats->wow_host_evt_wakeups += 1023bdcd8170SKalle Valo tgt_stats->wow_stats.wow_host_evt_wakeups; 1024bdcd8170SKalle Valo stats->wow_evt_discarded += 1025bdcd8170SKalle Valo le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded); 1026bdcd8170SKalle Valo 1027bdcd8170SKalle Valo if (test_bit(STATS_UPDATE_PEND, &ar->flag)) { 1028bdcd8170SKalle Valo clear_bit(STATS_UPDATE_PEND, &ar->flag); 1029bdcd8170SKalle Valo wake_up(&ar->event_wq); 1030bdcd8170SKalle Valo } 1031bdcd8170SKalle Valo } 1032bdcd8170SKalle Valo 1033bdcd8170SKalle Valo static void ath6kl_add_le32(__le32 *var, __le32 val) 1034bdcd8170SKalle Valo { 1035bdcd8170SKalle Valo *var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val)); 1036bdcd8170SKalle Valo } 1037bdcd8170SKalle Valo 1038bdcd8170SKalle Valo void ath6kl_tgt_stats_event(struct ath6kl *ar, u8 *ptr, u32 len) 1039bdcd8170SKalle Valo { 1040bdcd8170SKalle Valo struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr; 1041bdcd8170SKalle Valo struct wmi_ap_mode_stat *ap = &ar->ap_stats; 1042bdcd8170SKalle Valo struct wmi_per_sta_stat *st_ap, *st_p; 1043bdcd8170SKalle Valo u8 ac; 1044bdcd8170SKalle Valo 1045bdcd8170SKalle Valo if (ar->nw_type == AP_NETWORK) { 1046bdcd8170SKalle Valo if (len < sizeof(*p)) 1047bdcd8170SKalle Valo return; 1048bdcd8170SKalle Valo 1049bdcd8170SKalle Valo for (ac = 0; ac < AP_MAX_NUM_STA; ac++) { 1050bdcd8170SKalle Valo st_ap = &ap->sta[ac]; 1051bdcd8170SKalle Valo st_p = &p->sta[ac]; 1052bdcd8170SKalle Valo 1053bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->tx_bytes, st_p->tx_bytes); 1054bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->tx_pkts, st_p->tx_pkts); 1055bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->tx_error, st_p->tx_error); 1056bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->tx_discard, st_p->tx_discard); 1057bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->rx_bytes, st_p->rx_bytes); 1058bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->rx_pkts, st_p->rx_pkts); 1059bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->rx_error, st_p->rx_error); 1060bdcd8170SKalle Valo ath6kl_add_le32(&st_ap->rx_discard, st_p->rx_discard); 1061bdcd8170SKalle Valo } 1062bdcd8170SKalle Valo 1063bdcd8170SKalle Valo } else { 1064bdcd8170SKalle Valo ath6kl_update_target_stats(ar, ptr, len); 1065bdcd8170SKalle Valo } 1066bdcd8170SKalle Valo } 1067bdcd8170SKalle Valo 1068bdcd8170SKalle Valo void ath6kl_wakeup_event(void *dev) 1069bdcd8170SKalle Valo { 1070bdcd8170SKalle Valo struct ath6kl *ar = (struct ath6kl *) dev; 1071bdcd8170SKalle Valo 1072bdcd8170SKalle Valo wake_up(&ar->event_wq); 1073bdcd8170SKalle Valo } 1074bdcd8170SKalle Valo 1075bdcd8170SKalle Valo void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr) 1076bdcd8170SKalle Valo { 1077bdcd8170SKalle Valo struct ath6kl *ar = (struct ath6kl *) devt; 1078bdcd8170SKalle Valo 1079bdcd8170SKalle Valo ar->tx_pwr = tx_pwr; 1080bdcd8170SKalle Valo wake_up(&ar->event_wq); 1081bdcd8170SKalle Valo } 1082bdcd8170SKalle Valo 1083bdcd8170SKalle Valo void ath6kl_pspoll_event(struct ath6kl *ar, u8 aid) 1084bdcd8170SKalle Valo { 1085bdcd8170SKalle Valo struct ath6kl_sta *conn; 1086bdcd8170SKalle Valo struct sk_buff *skb; 1087bdcd8170SKalle Valo bool psq_empty = false; 1088bdcd8170SKalle Valo 1089bdcd8170SKalle Valo conn = ath6kl_find_sta_by_aid(ar, aid); 1090bdcd8170SKalle Valo 1091bdcd8170SKalle Valo if (!conn) 1092bdcd8170SKalle Valo return; 1093bdcd8170SKalle Valo /* 1094bdcd8170SKalle Valo * Send out a packet queued on ps queue. When the ps queue 1095bdcd8170SKalle Valo * becomes empty update the PVB for this station. 1096bdcd8170SKalle Valo */ 1097bdcd8170SKalle Valo spin_lock_bh(&conn->psq_lock); 1098bdcd8170SKalle Valo psq_empty = skb_queue_empty(&conn->psq); 1099bdcd8170SKalle Valo spin_unlock_bh(&conn->psq_lock); 1100bdcd8170SKalle Valo 1101bdcd8170SKalle Valo if (psq_empty) 1102bdcd8170SKalle Valo /* TODO: Send out a NULL data frame */ 1103bdcd8170SKalle Valo return; 1104bdcd8170SKalle Valo 1105bdcd8170SKalle Valo spin_lock_bh(&conn->psq_lock); 1106bdcd8170SKalle Valo skb = skb_dequeue(&conn->psq); 1107bdcd8170SKalle Valo spin_unlock_bh(&conn->psq_lock); 1108bdcd8170SKalle Valo 1109bdcd8170SKalle Valo conn->sta_flags |= STA_PS_POLLED; 1110bdcd8170SKalle Valo ath6kl_data_tx(skb, ar->net_dev); 1111bdcd8170SKalle Valo conn->sta_flags &= ~STA_PS_POLLED; 1112bdcd8170SKalle Valo 1113bdcd8170SKalle Valo spin_lock_bh(&conn->psq_lock); 1114bdcd8170SKalle Valo psq_empty = skb_queue_empty(&conn->psq); 1115bdcd8170SKalle Valo spin_unlock_bh(&conn->psq_lock); 1116bdcd8170SKalle Valo 1117bdcd8170SKalle Valo if (psq_empty) 1118bdcd8170SKalle Valo ath6kl_wmi_set_pvb_cmd(ar->wmi, conn->aid, 0); 1119bdcd8170SKalle Valo } 1120bdcd8170SKalle Valo 1121bdcd8170SKalle Valo void ath6kl_dtimexpiry_event(struct ath6kl *ar) 1122bdcd8170SKalle Valo { 1123bdcd8170SKalle Valo bool mcastq_empty = false; 1124bdcd8170SKalle Valo struct sk_buff *skb; 1125bdcd8170SKalle Valo 1126bdcd8170SKalle Valo /* 1127bdcd8170SKalle Valo * If there are no associated STAs, ignore the DTIM expiry event. 1128bdcd8170SKalle Valo * There can be potential race conditions where the last associated 1129bdcd8170SKalle Valo * STA may disconnect & before the host could clear the 'Indicate 1130bdcd8170SKalle Valo * DTIM' request to the firmware, the firmware would have just 1131bdcd8170SKalle Valo * indicated a DTIM expiry event. The race is between 'clear DTIM 1132bdcd8170SKalle Valo * expiry cmd' going from the host to the firmware & the DTIM 1133bdcd8170SKalle Valo * expiry event happening from the firmware to the host. 1134bdcd8170SKalle Valo */ 1135bdcd8170SKalle Valo if (!ar->sta_list_index) 1136bdcd8170SKalle Valo return; 1137bdcd8170SKalle Valo 1138bdcd8170SKalle Valo spin_lock_bh(&ar->mcastpsq_lock); 1139bdcd8170SKalle Valo mcastq_empty = skb_queue_empty(&ar->mcastpsq); 1140bdcd8170SKalle Valo spin_unlock_bh(&ar->mcastpsq_lock); 1141bdcd8170SKalle Valo 1142bdcd8170SKalle Valo if (mcastq_empty) 1143bdcd8170SKalle Valo return; 1144bdcd8170SKalle Valo 1145bdcd8170SKalle Valo /* set the STA flag to dtim_expired for the frame to go out */ 1146bdcd8170SKalle Valo set_bit(DTIM_EXPIRED, &ar->flag); 1147bdcd8170SKalle Valo 1148bdcd8170SKalle Valo spin_lock_bh(&ar->mcastpsq_lock); 1149bdcd8170SKalle Valo while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) { 1150bdcd8170SKalle Valo spin_unlock_bh(&ar->mcastpsq_lock); 1151bdcd8170SKalle Valo 1152bdcd8170SKalle Valo ath6kl_data_tx(skb, ar->net_dev); 1153bdcd8170SKalle Valo 1154bdcd8170SKalle Valo spin_lock_bh(&ar->mcastpsq_lock); 1155bdcd8170SKalle Valo } 1156bdcd8170SKalle Valo spin_unlock_bh(&ar->mcastpsq_lock); 1157bdcd8170SKalle Valo 1158bdcd8170SKalle Valo clear_bit(DTIM_EXPIRED, &ar->flag); 1159bdcd8170SKalle Valo 1160bdcd8170SKalle Valo /* clear the LSB of the BitMapCtl field of the TIM IE */ 1161bdcd8170SKalle Valo ath6kl_wmi_set_pvb_cmd(ar->wmi, MCAST_AID, 0); 1162bdcd8170SKalle Valo } 1163bdcd8170SKalle Valo 1164bdcd8170SKalle Valo void ath6kl_disconnect_event(struct ath6kl *ar, u8 reason, u8 *bssid, 1165bdcd8170SKalle Valo u8 assoc_resp_len, u8 *assoc_info, 1166bdcd8170SKalle Valo u16 prot_reason_status) 1167bdcd8170SKalle Valo { 1168bdcd8170SKalle Valo struct bss *wmi_ssid_node = NULL; 1169bdcd8170SKalle Valo unsigned long flags; 1170bdcd8170SKalle Valo 1171bdcd8170SKalle Valo if (ar->nw_type == AP_NETWORK) { 1172bdcd8170SKalle Valo if (!ath6kl_remove_sta(ar, bssid, prot_reason_status)) 1173bdcd8170SKalle Valo return; 1174bdcd8170SKalle Valo 1175bdcd8170SKalle Valo /* if no more associated STAs, empty the mcast PS q */ 1176bdcd8170SKalle Valo if (ar->sta_list_index == 0) { 1177bdcd8170SKalle Valo spin_lock_bh(&ar->mcastpsq_lock); 1178bdcd8170SKalle Valo skb_queue_purge(&ar->mcastpsq); 1179bdcd8170SKalle Valo spin_unlock_bh(&ar->mcastpsq_lock); 1180bdcd8170SKalle Valo 1181bdcd8170SKalle Valo /* clear the LSB of the TIM IE's BitMapCtl field */ 1182bdcd8170SKalle Valo if (test_bit(WMI_READY, &ar->flag)) 1183bdcd8170SKalle Valo ath6kl_wmi_set_pvb_cmd(ar->wmi, MCAST_AID, 0); 1184bdcd8170SKalle Valo } 1185bdcd8170SKalle Valo 1186bdcd8170SKalle Valo if (!is_broadcast_ether_addr(bssid)) { 1187bdcd8170SKalle Valo /* send event to application */ 1188bdcd8170SKalle Valo cfg80211_del_sta(ar->net_dev, bssid, GFP_KERNEL); 1189bdcd8170SKalle Valo } 1190bdcd8170SKalle Valo 1191bdcd8170SKalle Valo clear_bit(CONNECTED, &ar->flag); 1192bdcd8170SKalle Valo return; 1193bdcd8170SKalle Valo } 1194bdcd8170SKalle Valo 1195bdcd8170SKalle Valo ath6kl_cfg80211_disconnect_event(ar, reason, bssid, 1196bdcd8170SKalle Valo assoc_resp_len, assoc_info, 1197bdcd8170SKalle Valo prot_reason_status); 1198bdcd8170SKalle Valo 1199bdcd8170SKalle Valo aggr_reset_state(ar->aggr_cntxt); 1200bdcd8170SKalle Valo 1201bdcd8170SKalle Valo del_timer(&ar->disconnect_timer); 1202bdcd8170SKalle Valo 1203bdcd8170SKalle Valo ath6kl_dbg(ATH6KL_DBG_WLAN_CONNECT, 1204bdcd8170SKalle Valo "disconnect reason is %d\n", reason); 1205bdcd8170SKalle Valo 1206bdcd8170SKalle Valo /* 1207bdcd8170SKalle Valo * If the event is due to disconnect cmd from the host, only they 1208bdcd8170SKalle Valo * the target would stop trying to connect. Under any other 1209bdcd8170SKalle Valo * condition, target would keep trying to connect. 1210bdcd8170SKalle Valo */ 1211bdcd8170SKalle Valo if (reason == DISCONNECT_CMD) { 1212bdcd8170SKalle Valo if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag)) 1213bdcd8170SKalle Valo ath6kl_wmi_bssfilter_cmd(ar->wmi, NONE_BSS_FILTER, 0); 1214bdcd8170SKalle Valo } else { 1215bdcd8170SKalle Valo set_bit(CONNECT_PEND, &ar->flag); 1216bdcd8170SKalle Valo if (((reason == ASSOC_FAILED) && 1217bdcd8170SKalle Valo (prot_reason_status == 0x11)) || 1218bdcd8170SKalle Valo ((reason == ASSOC_FAILED) && (prot_reason_status == 0x0) 1219bdcd8170SKalle Valo && (ar->reconnect_flag == 1))) { 1220bdcd8170SKalle Valo set_bit(CONNECTED, &ar->flag); 1221bdcd8170SKalle Valo return; 1222bdcd8170SKalle Valo } 1223bdcd8170SKalle Valo } 1224bdcd8170SKalle Valo 1225bdcd8170SKalle Valo if ((reason == NO_NETWORK_AVAIL) && test_bit(WMI_READY, &ar->flag)) { 1226bdcd8170SKalle Valo ath6kl_wmi_node_free(ar->wmi, bssid); 1227bdcd8170SKalle Valo 1228bdcd8170SKalle Valo /* 1229bdcd8170SKalle Valo * In case any other same SSID nodes are present remove it, 1230bdcd8170SKalle Valo * since those nodes also not available now. 1231bdcd8170SKalle Valo */ 1232bdcd8170SKalle Valo do { 1233bdcd8170SKalle Valo /* 1234bdcd8170SKalle Valo * Find the nodes based on SSID and remove it 1235bdcd8170SKalle Valo * 1236bdcd8170SKalle Valo * Note: This case will not work out for 1237bdcd8170SKalle Valo * Hidden-SSID 1238bdcd8170SKalle Valo */ 1239bdcd8170SKalle Valo wmi_ssid_node = ath6kl_wmi_find_ssid_node(ar->wmi, 1240bdcd8170SKalle Valo ar->ssid, 1241bdcd8170SKalle Valo ar->ssid_len, 1242bdcd8170SKalle Valo false, 1243bdcd8170SKalle Valo true); 1244bdcd8170SKalle Valo 1245bdcd8170SKalle Valo if (wmi_ssid_node) 1246bdcd8170SKalle Valo ath6kl_wmi_node_free(ar->wmi, 1247bdcd8170SKalle Valo wmi_ssid_node->ni_macaddr); 1248bdcd8170SKalle Valo 1249bdcd8170SKalle Valo } while (wmi_ssid_node); 1250bdcd8170SKalle Valo } 1251bdcd8170SKalle Valo 1252bdcd8170SKalle Valo /* update connect & link status atomically */ 1253bdcd8170SKalle Valo spin_lock_irqsave(&ar->lock, flags); 1254bdcd8170SKalle Valo clear_bit(CONNECTED, &ar->flag); 1255bdcd8170SKalle Valo netif_carrier_off(ar->net_dev); 1256bdcd8170SKalle Valo spin_unlock_irqrestore(&ar->lock, flags); 1257bdcd8170SKalle Valo 1258bdcd8170SKalle Valo if ((reason != CSERV_DISCONNECT) || (ar->reconnect_flag != 1)) 1259bdcd8170SKalle Valo ar->reconnect_flag = 0; 1260bdcd8170SKalle Valo 1261bdcd8170SKalle Valo if (reason != CSERV_DISCONNECT) 1262bdcd8170SKalle Valo ar->user_key_ctrl = 0; 1263bdcd8170SKalle Valo 1264bdcd8170SKalle Valo netif_stop_queue(ar->net_dev); 1265bdcd8170SKalle Valo memset(ar->bssid, 0, sizeof(ar->bssid)); 1266bdcd8170SKalle Valo ar->bss_ch = 0; 1267bdcd8170SKalle Valo 1268bdcd8170SKalle Valo ath6kl_tx_data_cleanup(ar); 1269bdcd8170SKalle Valo } 1270bdcd8170SKalle Valo 1271bdcd8170SKalle Valo static int ath6kl_open(struct net_device *dev) 1272bdcd8170SKalle Valo { 1273bdcd8170SKalle Valo struct ath6kl *ar = ath6kl_priv(dev); 1274bdcd8170SKalle Valo unsigned long flags; 1275bdcd8170SKalle Valo 1276bdcd8170SKalle Valo spin_lock_irqsave(&ar->lock, flags); 1277bdcd8170SKalle Valo 1278bdcd8170SKalle Valo ar->wlan_state = WLAN_ENABLED; 1279bdcd8170SKalle Valo 1280bdcd8170SKalle Valo if (test_bit(CONNECTED, &ar->flag)) { 1281bdcd8170SKalle Valo netif_carrier_on(dev); 1282bdcd8170SKalle Valo netif_wake_queue(dev); 1283bdcd8170SKalle Valo } else 1284bdcd8170SKalle Valo netif_carrier_off(dev); 1285bdcd8170SKalle Valo 1286bdcd8170SKalle Valo spin_unlock_irqrestore(&ar->lock, flags); 1287bdcd8170SKalle Valo 1288bdcd8170SKalle Valo return 0; 1289bdcd8170SKalle Valo } 1290bdcd8170SKalle Valo 1291bdcd8170SKalle Valo static int ath6kl_close(struct net_device *dev) 1292bdcd8170SKalle Valo { 1293bdcd8170SKalle Valo struct ath6kl *ar = ath6kl_priv(dev); 1294bdcd8170SKalle Valo 1295bdcd8170SKalle Valo netif_stop_queue(dev); 1296bdcd8170SKalle Valo 1297bdcd8170SKalle Valo ath6kl_disconnect(ar); 1298bdcd8170SKalle Valo 1299bdcd8170SKalle Valo if (test_bit(WMI_READY, &ar->flag)) { 1300bdcd8170SKalle Valo if (ath6kl_wmi_scanparams_cmd(ar->wmi, 0xFFFF, 0, 0, 0, 0, 0, 0, 1301bdcd8170SKalle Valo 0, 0, 0)) 1302bdcd8170SKalle Valo return -EIO; 1303bdcd8170SKalle Valo 1304bdcd8170SKalle Valo ar->wlan_state = WLAN_DISABLED; 1305bdcd8170SKalle Valo } 1306bdcd8170SKalle Valo 1307bdcd8170SKalle Valo ath6kl_cfg80211_scan_complete_event(ar, -ECANCELED); 1308bdcd8170SKalle Valo 1309bdcd8170SKalle Valo return 0; 1310bdcd8170SKalle Valo } 1311bdcd8170SKalle Valo 1312bdcd8170SKalle Valo static struct net_device_stats *ath6kl_get_stats(struct net_device *dev) 1313bdcd8170SKalle Valo { 1314bdcd8170SKalle Valo struct ath6kl *ar = ath6kl_priv(dev); 1315bdcd8170SKalle Valo 1316bdcd8170SKalle Valo return &ar->net_stats; 1317bdcd8170SKalle Valo } 1318bdcd8170SKalle Valo 1319bdcd8170SKalle Valo static struct net_device_ops ath6kl_netdev_ops = { 1320bdcd8170SKalle Valo .ndo_open = ath6kl_open, 1321bdcd8170SKalle Valo .ndo_stop = ath6kl_close, 1322bdcd8170SKalle Valo .ndo_start_xmit = ath6kl_data_tx, 1323bdcd8170SKalle Valo .ndo_get_stats = ath6kl_get_stats, 1324bdcd8170SKalle Valo }; 1325bdcd8170SKalle Valo 1326bdcd8170SKalle Valo void init_netdev(struct net_device *dev) 1327bdcd8170SKalle Valo { 1328bdcd8170SKalle Valo dev->netdev_ops = &ath6kl_netdev_ops; 1329bdcd8170SKalle Valo dev->watchdog_timeo = ATH6KL_TX_TIMEOUT; 1330bdcd8170SKalle Valo 1331bdcd8170SKalle Valo dev->needed_headroom = ETH_HLEN; 1332bdcd8170SKalle Valo dev->needed_headroom += sizeof(struct ath6kl_llc_snap_hdr) + 1333bdcd8170SKalle Valo sizeof(struct wmi_data_hdr) + HTC_HDR_LENGTH 1334bdcd8170SKalle Valo + WMI_MAX_TX_META_SZ; 1335bdcd8170SKalle Valo 1336bdcd8170SKalle Valo return; 1337bdcd8170SKalle Valo } 1338