12be7d22fSVladimir Kondratiev /* 202525a79SVladimir Kondratiev * Copyright (c) 2012-2014 Qualcomm Atheros, Inc. 32be7d22fSVladimir Kondratiev * 42be7d22fSVladimir Kondratiev * Permission to use, copy, modify, and/or distribute this software for any 52be7d22fSVladimir Kondratiev * purpose with or without fee is hereby granted, provided that the above 62be7d22fSVladimir Kondratiev * copyright notice and this permission notice appear in all copies. 72be7d22fSVladimir Kondratiev * 82be7d22fSVladimir Kondratiev * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 92be7d22fSVladimir Kondratiev * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 102be7d22fSVladimir Kondratiev * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 112be7d22fSVladimir Kondratiev * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 122be7d22fSVladimir Kondratiev * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 132be7d22fSVladimir Kondratiev * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 142be7d22fSVladimir Kondratiev * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 152be7d22fSVladimir Kondratiev */ 162be7d22fSVladimir Kondratiev 172be7d22fSVladimir Kondratiev #include <linux/moduleparam.h> 182be7d22fSVladimir Kondratiev #include <linux/if_arp.h> 19108d1eb6SVladimir Kondratiev #include <linux/etherdevice.h> 202be7d22fSVladimir Kondratiev 212be7d22fSVladimir Kondratiev #include "wil6210.h" 22b4490f42SVladimir Kondratiev #include "txrx.h" 23f172b563SDedy Lansky #include "wmi.h" 24f172b563SDedy Lansky 25f172b563SDedy Lansky #define WAIT_FOR_DISCONNECT_TIMEOUT_MS 2000 26f172b563SDedy Lansky #define WAIT_FOR_DISCONNECT_INTERVAL_MS 10 272be7d22fSVladimir Kondratiev 28c33407a8SVladimir Kondratiev bool no_fw_recovery; 29ed6f9dc6SVladimir Kondratiev module_param(no_fw_recovery, bool, S_IRUGO | S_IWUSR); 30c33407a8SVladimir Kondratiev MODULE_PARM_DESC(no_fw_recovery, " disable automatic FW error recovery"); 31ed6f9dc6SVladimir Kondratiev 32151a9706SVladimir Kondratiev static bool no_fw_load = true; 33151a9706SVladimir Kondratiev module_param(no_fw_load, bool, S_IRUGO | S_IWUSR); 34151a9706SVladimir Kondratiev MODULE_PARM_DESC(no_fw_load, " do not download FW, use one in on-card flash."); 35151a9706SVladimir Kondratiev 36b6b1b0ecSVladimir Kondratiev static unsigned int itr_trsh = WIL6210_ITR_TRSH_DEFAULT; 37b6b1b0ecSVladimir Kondratiev 38b6b1b0ecSVladimir Kondratiev module_param(itr_trsh, uint, S_IRUGO); 39b6b1b0ecSVladimir Kondratiev MODULE_PARM_DESC(itr_trsh, " Interrupt moderation threshold, usecs."); 40b6b1b0ecSVladimir Kondratiev 419a06bec9SVladimir Kondratiev /* We allow allocation of more than 1 page buffers to support large packets. 429a06bec9SVladimir Kondratiev * It is suboptimal behavior performance wise in case MTU above page size. 439a06bec9SVladimir Kondratiev */ 449a06bec9SVladimir Kondratiev unsigned int mtu_max = TXRX_BUF_LEN_DEFAULT - ETH_HLEN; 459a06bec9SVladimir Kondratiev static int mtu_max_set(const char *val, const struct kernel_param *kp) 469a06bec9SVladimir Kondratiev { 479a06bec9SVladimir Kondratiev int ret; 489a06bec9SVladimir Kondratiev 499a06bec9SVladimir Kondratiev /* sets mtu_max directly. no need to restore it in case of 509a06bec9SVladimir Kondratiev * illegal value since we assume this will fail insmod 519a06bec9SVladimir Kondratiev */ 529a06bec9SVladimir Kondratiev ret = param_set_uint(val, kp); 539a06bec9SVladimir Kondratiev if (ret) 549a06bec9SVladimir Kondratiev return ret; 559a06bec9SVladimir Kondratiev 569a06bec9SVladimir Kondratiev if (mtu_max < 68 || mtu_max > IEEE80211_MAX_DATA_LEN_DMG) 579a06bec9SVladimir Kondratiev ret = -EINVAL; 589a06bec9SVladimir Kondratiev 599a06bec9SVladimir Kondratiev return ret; 609a06bec9SVladimir Kondratiev } 619a06bec9SVladimir Kondratiev 629a06bec9SVladimir Kondratiev static struct kernel_param_ops mtu_max_ops = { 639a06bec9SVladimir Kondratiev .set = mtu_max_set, 649a06bec9SVladimir Kondratiev .get = param_get_uint, 659a06bec9SVladimir Kondratiev }; 669a06bec9SVladimir Kondratiev 679a06bec9SVladimir Kondratiev module_param_cb(mtu_max, &mtu_max_ops, &mtu_max, S_IRUGO); 689a06bec9SVladimir Kondratiev MODULE_PARM_DESC(mtu_max, " Max MTU value."); 699a06bec9SVladimir Kondratiev 70520d68e7SVladimir Kondratiev #define RST_DELAY (20) /* msec, for loop in @wil_target_reset */ 71520d68e7SVladimir Kondratiev #define RST_COUNT (1 + 1000/RST_DELAY) /* round up to be above 1 sec total */ 72520d68e7SVladimir Kondratiev 732be7d22fSVladimir Kondratiev /* 742be7d22fSVladimir Kondratiev * Due to a hardware issue, 752be7d22fSVladimir Kondratiev * one has to read/write to/from NIC in 32-bit chunks; 762be7d22fSVladimir Kondratiev * regular memcpy_fromio and siblings will 772be7d22fSVladimir Kondratiev * not work on 64-bit platform - it uses 64-bit transactions 782be7d22fSVladimir Kondratiev * 792be7d22fSVladimir Kondratiev * Force 32-bit transactions to enable NIC on 64-bit platforms 802be7d22fSVladimir Kondratiev * 812be7d22fSVladimir Kondratiev * To avoid byte swap on big endian host, __raw_{read|write}l 822be7d22fSVladimir Kondratiev * should be used - {read|write}l would swap bytes to provide 832be7d22fSVladimir Kondratiev * little endian on PCI value in host endianness. 842be7d22fSVladimir Kondratiev */ 852be7d22fSVladimir Kondratiev void wil_memcpy_fromio_32(void *dst, const volatile void __iomem *src, 862be7d22fSVladimir Kondratiev size_t count) 872be7d22fSVladimir Kondratiev { 882be7d22fSVladimir Kondratiev u32 *d = dst; 892be7d22fSVladimir Kondratiev const volatile u32 __iomem *s = src; 902be7d22fSVladimir Kondratiev 912be7d22fSVladimir Kondratiev /* size_t is unsigned, if (count%4 != 0) it will wrap */ 922be7d22fSVladimir Kondratiev for (count += 4; count > 4; count -= 4) 932be7d22fSVladimir Kondratiev *d++ = __raw_readl(s++); 942be7d22fSVladimir Kondratiev } 952be7d22fSVladimir Kondratiev 962be7d22fSVladimir Kondratiev void wil_memcpy_toio_32(volatile void __iomem *dst, const void *src, 972be7d22fSVladimir Kondratiev size_t count) 982be7d22fSVladimir Kondratiev { 992be7d22fSVladimir Kondratiev volatile u32 __iomem *d = dst; 1002be7d22fSVladimir Kondratiev const u32 *s = src; 1012be7d22fSVladimir Kondratiev 1022be7d22fSVladimir Kondratiev for (count += 4; count > 4; count -= 4) 1032be7d22fSVladimir Kondratiev __raw_writel(*s++, d++); 1042be7d22fSVladimir Kondratiev } 1052be7d22fSVladimir Kondratiev 106b516fcc5SVladimir Kondratiev static void wil_disconnect_cid(struct wil6210_priv *wil, int cid, 1074821e6d8SVladimir Kondratiev u16 reason_code, bool from_event) 1082be7d22fSVladimir Kondratiev { 10991886b0bSVladimir Kondratiev uint i; 110fc58f681SVladimir Kondratiev struct net_device *ndev = wil_to_ndev(wil); 111fc58f681SVladimir Kondratiev struct wireless_dev *wdev = wil->wdev; 112b4490f42SVladimir Kondratiev struct wil_sta_info *sta = &wil->sta[cid]; 1138fe59627SVladimir Kondratiev 114fc58f681SVladimir Kondratiev wil_dbg_misc(wil, "%s(CID %d, status %d)\n", __func__, cid, 115fc58f681SVladimir Kondratiev sta->status); 1164d55a0a1SVladimir Kondratiev 117e58c9f70SVladimir Kondratiev sta->data_port_open = false; 1184d55a0a1SVladimir Kondratiev if (sta->status != wil_sta_unused) { 119b516fcc5SVladimir Kondratiev if (!from_event) 1204821e6d8SVladimir Kondratiev wmi_disconnect_sta(wil, sta->addr, reason_code); 121b516fcc5SVladimir Kondratiev 122fc58f681SVladimir Kondratiev switch (wdev->iftype) { 123fc58f681SVladimir Kondratiev case NL80211_IFTYPE_AP: 124fc58f681SVladimir Kondratiev case NL80211_IFTYPE_P2P_GO: 125fc58f681SVladimir Kondratiev /* AP-like interface */ 126fc58f681SVladimir Kondratiev cfg80211_del_sta(ndev, sta->addr, GFP_KERNEL); 127fc58f681SVladimir Kondratiev break; 128fc58f681SVladimir Kondratiev default: 129fc58f681SVladimir Kondratiev break; 130fc58f681SVladimir Kondratiev } 1314d55a0a1SVladimir Kondratiev sta->status = wil_sta_unused; 1324d55a0a1SVladimir Kondratiev } 1334d55a0a1SVladimir Kondratiev 134b4490f42SVladimir Kondratiev for (i = 0; i < WIL_STA_TID_NUM; i++) { 135ec81b5adSDedy Lansky struct wil_tid_ampdu_rx *r; 136ec81b5adSDedy Lansky unsigned long flags; 137ec81b5adSDedy Lansky 138ec81b5adSDedy Lansky spin_lock_irqsave(&sta->tid_rx_lock, flags); 139ec81b5adSDedy Lansky 140ec81b5adSDedy Lansky r = sta->tid_rx[i]; 141b4490f42SVladimir Kondratiev sta->tid_rx[i] = NULL; 142b4490f42SVladimir Kondratiev wil_tid_ampdu_rx_free(wil, r); 143ec81b5adSDedy Lansky 144ec81b5adSDedy Lansky spin_unlock_irqrestore(&sta->tid_rx_lock, flags); 145b4490f42SVladimir Kondratiev } 14691886b0bSVladimir Kondratiev for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) { 14791886b0bSVladimir Kondratiev if (wil->vring2cid_tid[i][0] == cid) 14891886b0bSVladimir Kondratiev wil_vring_fini_tx(wil, i); 14991886b0bSVladimir Kondratiev } 15091886b0bSVladimir Kondratiev memset(&sta->stats, 0, sizeof(sta->stats)); 151b4490f42SVladimir Kondratiev } 152b4490f42SVladimir Kondratiev 153b516fcc5SVladimir Kondratiev static void _wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid, 1544821e6d8SVladimir Kondratiev u16 reason_code, bool from_event) 15591886b0bSVladimir Kondratiev { 15691886b0bSVladimir Kondratiev int cid = -ENOENT; 15791886b0bSVladimir Kondratiev struct net_device *ndev = wil_to_ndev(wil); 15891886b0bSVladimir Kondratiev struct wireless_dev *wdev = wil->wdev; 15991886b0bSVladimir Kondratiev 16091886b0bSVladimir Kondratiev might_sleep(); 16191886b0bSVladimir Kondratiev if (bssid) { 16291886b0bSVladimir Kondratiev cid = wil_find_cid(wil, bssid); 16391886b0bSVladimir Kondratiev wil_dbg_misc(wil, "%s(%pM, CID %d)\n", __func__, bssid, cid); 16491886b0bSVladimir Kondratiev } else { 16591886b0bSVladimir Kondratiev wil_dbg_misc(wil, "%s(all)\n", __func__); 16691886b0bSVladimir Kondratiev } 16791886b0bSVladimir Kondratiev 16891886b0bSVladimir Kondratiev if (cid >= 0) /* disconnect 1 peer */ 1694821e6d8SVladimir Kondratiev wil_disconnect_cid(wil, cid, reason_code, from_event); 17091886b0bSVladimir Kondratiev else /* disconnect all */ 17191886b0bSVladimir Kondratiev for (cid = 0; cid < WIL6210_MAX_CID; cid++) 1724821e6d8SVladimir Kondratiev wil_disconnect_cid(wil, cid, reason_code, from_event); 17391886b0bSVladimir Kondratiev 17491886b0bSVladimir Kondratiev /* link state */ 17591886b0bSVladimir Kondratiev switch (wdev->iftype) { 17691886b0bSVladimir Kondratiev case NL80211_IFTYPE_STATION: 17791886b0bSVladimir Kondratiev case NL80211_IFTYPE_P2P_CLIENT: 1782be7d22fSVladimir Kondratiev wil_link_off(wil); 179b338f74eSVladimir Kondratiev if (test_bit(wil_status_fwconnected, &wil->status)) { 1802be7d22fSVladimir Kondratiev clear_bit(wil_status_fwconnected, &wil->status); 1814821e6d8SVladimir Kondratiev cfg80211_disconnected(ndev, reason_code, 1822be7d22fSVladimir Kondratiev NULL, 0, GFP_KERNEL); 183b338f74eSVladimir Kondratiev } else if (test_bit(wil_status_fwconnecting, &wil->status)) { 1842be7d22fSVladimir Kondratiev cfg80211_connect_result(ndev, bssid, NULL, 0, NULL, 0, 1852be7d22fSVladimir Kondratiev WLAN_STATUS_UNSPECIFIED_FAILURE, 1862be7d22fSVladimir Kondratiev GFP_KERNEL); 1872be7d22fSVladimir Kondratiev } 188b338f74eSVladimir Kondratiev clear_bit(wil_status_fwconnecting, &wil->status); 18991886b0bSVladimir Kondratiev break; 19091886b0bSVladimir Kondratiev default: 19191886b0bSVladimir Kondratiev break; 19291886b0bSVladimir Kondratiev } 1932be7d22fSVladimir Kondratiev } 1942be7d22fSVladimir Kondratiev 1952be7d22fSVladimir Kondratiev static void wil_disconnect_worker(struct work_struct *work) 1962be7d22fSVladimir Kondratiev { 1972be7d22fSVladimir Kondratiev struct wil6210_priv *wil = container_of(work, 1982be7d22fSVladimir Kondratiev struct wil6210_priv, disconnect_worker); 1992be7d22fSVladimir Kondratiev 200097638a0SVladimir Kondratiev mutex_lock(&wil->mutex); 2014821e6d8SVladimir Kondratiev _wil6210_disconnect(wil, NULL, WLAN_REASON_UNSPECIFIED, false); 202097638a0SVladimir Kondratiev mutex_unlock(&wil->mutex); 2032be7d22fSVladimir Kondratiev } 2042be7d22fSVladimir Kondratiev 2052be7d22fSVladimir Kondratiev static void wil_connect_timer_fn(ulong x) 2062be7d22fSVladimir Kondratiev { 2072be7d22fSVladimir Kondratiev struct wil6210_priv *wil = (void *)x; 2082be7d22fSVladimir Kondratiev 2097743882dSVladimir Kondratiev wil_dbg_misc(wil, "Connect timeout\n"); 2102be7d22fSVladimir Kondratiev 2112be7d22fSVladimir Kondratiev /* reschedule to thread context - disconnect won't 2122be7d22fSVladimir Kondratiev * run from atomic context 2132be7d22fSVladimir Kondratiev */ 2142be7d22fSVladimir Kondratiev schedule_work(&wil->disconnect_worker); 2152be7d22fSVladimir Kondratiev } 2162be7d22fSVladimir Kondratiev 217047e5d74SVladimir Kondratiev static void wil_scan_timer_fn(ulong x) 218047e5d74SVladimir Kondratiev { 219047e5d74SVladimir Kondratiev struct wil6210_priv *wil = (void *)x; 220047e5d74SVladimir Kondratiev 221047e5d74SVladimir Kondratiev clear_bit(wil_status_fwready, &wil->status); 222047e5d74SVladimir Kondratiev wil_err(wil, "Scan timeout detected, start fw error recovery\n"); 223047e5d74SVladimir Kondratiev schedule_work(&wil->fw_error_worker); 224047e5d74SVladimir Kondratiev } 225047e5d74SVladimir Kondratiev 226c33407a8SVladimir Kondratiev static int wil_wait_for_recovery(struct wil6210_priv *wil) 227c33407a8SVladimir Kondratiev { 228c33407a8SVladimir Kondratiev if (wait_event_interruptible(wil->wq, wil->recovery_state != 229c33407a8SVladimir Kondratiev fw_recovery_pending)) { 230c33407a8SVladimir Kondratiev wil_err(wil, "Interrupt, canceling recovery\n"); 231c33407a8SVladimir Kondratiev return -ERESTARTSYS; 232c33407a8SVladimir Kondratiev } 233c33407a8SVladimir Kondratiev if (wil->recovery_state != fw_recovery_running) { 234c33407a8SVladimir Kondratiev wil_info(wil, "Recovery cancelled\n"); 235c33407a8SVladimir Kondratiev return -EINTR; 236c33407a8SVladimir Kondratiev } 237c33407a8SVladimir Kondratiev wil_info(wil, "Proceed with recovery\n"); 238c33407a8SVladimir Kondratiev return 0; 239c33407a8SVladimir Kondratiev } 240c33407a8SVladimir Kondratiev 241c33407a8SVladimir Kondratiev void wil_set_recovery_state(struct wil6210_priv *wil, int state) 242c33407a8SVladimir Kondratiev { 243c33407a8SVladimir Kondratiev wil_dbg_misc(wil, "%s(%d -> %d)\n", __func__, 244c33407a8SVladimir Kondratiev wil->recovery_state, state); 245c33407a8SVladimir Kondratiev 246c33407a8SVladimir Kondratiev wil->recovery_state = state; 247c33407a8SVladimir Kondratiev wake_up_interruptible(&wil->wq); 248c33407a8SVladimir Kondratiev } 249c33407a8SVladimir Kondratiev 250ed6f9dc6SVladimir Kondratiev static void wil_fw_error_worker(struct work_struct *work) 251ed6f9dc6SVladimir Kondratiev { 252c33407a8SVladimir Kondratiev struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 253c33407a8SVladimir Kondratiev fw_error_worker); 254ed6f9dc6SVladimir Kondratiev struct wireless_dev *wdev = wil->wdev; 255ed6f9dc6SVladimir Kondratiev 256ed6f9dc6SVladimir Kondratiev wil_dbg_misc(wil, "fw error worker\n"); 257ed6f9dc6SVladimir Kondratiev 258cded9369SVladimir Kondratiev if (!netif_running(wil_to_ndev(wil))) { 259cded9369SVladimir Kondratiev wil_info(wil, "No recovery - interface is down\n"); 260cded9369SVladimir Kondratiev return; 261cded9369SVladimir Kondratiev } 262cded9369SVladimir Kondratiev 263fc219eedSVladimir Kondratiev /* increment @recovery_count if less then WIL6210_FW_RECOVERY_TO 264fc219eedSVladimir Kondratiev * passed since last recovery attempt 265fc219eedSVladimir Kondratiev */ 266fc219eedSVladimir Kondratiev if (time_is_after_jiffies(wil->last_fw_recovery + 267fc219eedSVladimir Kondratiev WIL6210_FW_RECOVERY_TO)) 268fc219eedSVladimir Kondratiev wil->recovery_count++; 269fc219eedSVladimir Kondratiev else 270fc219eedSVladimir Kondratiev wil->recovery_count = 1; /* fw was alive for a long time */ 271fc219eedSVladimir Kondratiev 272fc219eedSVladimir Kondratiev if (wil->recovery_count > WIL6210_FW_RECOVERY_RETRIES) { 273fc219eedSVladimir Kondratiev wil_err(wil, "too many recovery attempts (%d), giving up\n", 274fc219eedSVladimir Kondratiev wil->recovery_count); 275fc219eedSVladimir Kondratiev return; 276fc219eedSVladimir Kondratiev } 277fc219eedSVladimir Kondratiev 278fc219eedSVladimir Kondratiev wil->last_fw_recovery = jiffies; 279fc219eedSVladimir Kondratiev 2809c3bde56SVladimir Kondratiev mutex_lock(&wil->mutex); 281ed6f9dc6SVladimir Kondratiev switch (wdev->iftype) { 282ed6f9dc6SVladimir Kondratiev case NL80211_IFTYPE_STATION: 283ed6f9dc6SVladimir Kondratiev case NL80211_IFTYPE_P2P_CLIENT: 284ed6f9dc6SVladimir Kondratiev case NL80211_IFTYPE_MONITOR: 285c33407a8SVladimir Kondratiev wil_info(wil, "fw error recovery requested (try %d)...\n", 286fc219eedSVladimir Kondratiev wil->recovery_count); 287c33407a8SVladimir Kondratiev if (!no_fw_recovery) 288c33407a8SVladimir Kondratiev wil->recovery_state = fw_recovery_running; 289c33407a8SVladimir Kondratiev if (0 != wil_wait_for_recovery(wil)) 290c33407a8SVladimir Kondratiev break; 291c33407a8SVladimir Kondratiev 29273d839aeSVladimir Kondratiev __wil_down(wil); 29373d839aeSVladimir Kondratiev __wil_up(wil); 294ed6f9dc6SVladimir Kondratiev break; 295ed6f9dc6SVladimir Kondratiev case NL80211_IFTYPE_AP: 296ed6f9dc6SVladimir Kondratiev case NL80211_IFTYPE_P2P_GO: 297e240537bSVladimir Kondratiev wil_info(wil, "No recovery for AP-like interface\n"); 298ed6f9dc6SVladimir Kondratiev /* recovery in these modes is done by upper layers */ 299ed6f9dc6SVladimir Kondratiev break; 300ed6f9dc6SVladimir Kondratiev default: 301e240537bSVladimir Kondratiev wil_err(wil, "No recovery - unknown interface type %d\n", 302e240537bSVladimir Kondratiev wdev->iftype); 303ed6f9dc6SVladimir Kondratiev break; 304ed6f9dc6SVladimir Kondratiev } 3059c3bde56SVladimir Kondratiev mutex_unlock(&wil->mutex); 306ed6f9dc6SVladimir Kondratiev } 307ed6f9dc6SVladimir Kondratiev 3089a177384SVladimir Kondratiev static int wil_find_free_vring(struct wil6210_priv *wil) 3099a177384SVladimir Kondratiev { 3109a177384SVladimir Kondratiev int i; 3118fe59627SVladimir Kondratiev 3129a177384SVladimir Kondratiev for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) { 3139a177384SVladimir Kondratiev if (!wil->vring_tx[i].va) 3149a177384SVladimir Kondratiev return i; 3159a177384SVladimir Kondratiev } 3169a177384SVladimir Kondratiev return -EINVAL; 3179a177384SVladimir Kondratiev } 3189a177384SVladimir Kondratiev 319d81079f1SVladimir Kondratiev static void wil_connect_worker(struct work_struct *work) 320d81079f1SVladimir Kondratiev { 321d81079f1SVladimir Kondratiev int rc; 322d81079f1SVladimir Kondratiev struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 323d81079f1SVladimir Kondratiev connect_worker); 324d81079f1SVladimir Kondratiev int cid = wil->pending_connect_cid; 3259a177384SVladimir Kondratiev int ringid = wil_find_free_vring(wil); 326d81079f1SVladimir Kondratiev 327d81079f1SVladimir Kondratiev if (cid < 0) { 328d81079f1SVladimir Kondratiev wil_err(wil, "No connection pending\n"); 329d81079f1SVladimir Kondratiev return; 330d81079f1SVladimir Kondratiev } 331d81079f1SVladimir Kondratiev 332d81079f1SVladimir Kondratiev wil_dbg_wmi(wil, "Configure for connection CID %d\n", cid); 333d81079f1SVladimir Kondratiev 3349a177384SVladimir Kondratiev rc = wil_vring_init_tx(wil, ringid, WIL6210_TX_RING_SIZE, cid, 0); 335d81079f1SVladimir Kondratiev wil->pending_connect_cid = -1; 3363df2cd36SVladimir Kondratiev if (rc == 0) { 3373df2cd36SVladimir Kondratiev wil->sta[cid].status = wil_sta_connected; 338d81079f1SVladimir Kondratiev wil_link_on(wil); 3393df2cd36SVladimir Kondratiev } else { 3403df2cd36SVladimir Kondratiev wil->sta[cid].status = wil_sta_unused; 3413df2cd36SVladimir Kondratiev } 342d81079f1SVladimir Kondratiev } 343d81079f1SVladimir Kondratiev 3442be7d22fSVladimir Kondratiev int wil_priv_init(struct wil6210_priv *wil) 3452be7d22fSVladimir Kondratiev { 346ec81b5adSDedy Lansky uint i; 347ec81b5adSDedy Lansky 3487743882dSVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 3492be7d22fSVladimir Kondratiev 3503df2cd36SVladimir Kondratiev memset(wil->sta, 0, sizeof(wil->sta)); 351ec81b5adSDedy Lansky for (i = 0; i < WIL6210_MAX_CID; i++) 352ec81b5adSDedy Lansky spin_lock_init(&wil->sta[i].tid_rx_lock); 3533df2cd36SVladimir Kondratiev 3542be7d22fSVladimir Kondratiev mutex_init(&wil->mutex); 3552be7d22fSVladimir Kondratiev mutex_init(&wil->wmi_mutex); 3562be7d22fSVladimir Kondratiev 3572be7d22fSVladimir Kondratiev init_completion(&wil->wmi_ready); 35859502647SDedy Lansky init_completion(&wil->wmi_call); 3592be7d22fSVladimir Kondratiev 3602be7d22fSVladimir Kondratiev wil->pending_connect_cid = -1; 3612be7d22fSVladimir Kondratiev setup_timer(&wil->connect_timer, wil_connect_timer_fn, (ulong)wil); 362047e5d74SVladimir Kondratiev setup_timer(&wil->scan_timer, wil_scan_timer_fn, (ulong)wil); 3632be7d22fSVladimir Kondratiev 364d81079f1SVladimir Kondratiev INIT_WORK(&wil->connect_worker, wil_connect_worker); 3652be7d22fSVladimir Kondratiev INIT_WORK(&wil->disconnect_worker, wil_disconnect_worker); 3662be7d22fSVladimir Kondratiev INIT_WORK(&wil->wmi_event_worker, wmi_event_worker); 367ed6f9dc6SVladimir Kondratiev INIT_WORK(&wil->fw_error_worker, wil_fw_error_worker); 3682be7d22fSVladimir Kondratiev 3692be7d22fSVladimir Kondratiev INIT_LIST_HEAD(&wil->pending_wmi_ev); 3702be7d22fSVladimir Kondratiev spin_lock_init(&wil->wmi_ev_lock); 371c33407a8SVladimir Kondratiev init_waitqueue_head(&wil->wq); 3722be7d22fSVladimir Kondratiev 3732be7d22fSVladimir Kondratiev wil->wmi_wq = create_singlethread_workqueue(WIL_NAME"_wmi"); 3742be7d22fSVladimir Kondratiev if (!wil->wmi_wq) 3752be7d22fSVladimir Kondratiev return -EAGAIN; 3762be7d22fSVladimir Kondratiev 3772be7d22fSVladimir Kondratiev wil->wmi_wq_conn = create_singlethread_workqueue(WIL_NAME"_connect"); 3782be7d22fSVladimir Kondratiev if (!wil->wmi_wq_conn) { 3792be7d22fSVladimir Kondratiev destroy_workqueue(wil->wmi_wq); 3802be7d22fSVladimir Kondratiev return -EAGAIN; 3812be7d22fSVladimir Kondratiev } 3822be7d22fSVladimir Kondratiev 383fc219eedSVladimir Kondratiev wil->last_fw_recovery = jiffies; 384b6b1b0ecSVladimir Kondratiev wil->itr_trsh = itr_trsh; 385fc219eedSVladimir Kondratiev 3862be7d22fSVladimir Kondratiev return 0; 3872be7d22fSVladimir Kondratiev } 3882be7d22fSVladimir Kondratiev 389b516fcc5SVladimir Kondratiev /** 390b516fcc5SVladimir Kondratiev * wil6210_disconnect - disconnect one connection 391b516fcc5SVladimir Kondratiev * @wil: driver context 392b516fcc5SVladimir Kondratiev * @bssid: peer to disconnect, NULL to disconnect all 3934821e6d8SVladimir Kondratiev * @reason_code: Reason code for the Disassociation frame 394b516fcc5SVladimir Kondratiev * @from_event: whether is invoked from FW event handler 395b516fcc5SVladimir Kondratiev * 396b516fcc5SVladimir Kondratiev * Disconnect and release associated resources. If invoked not from the 397b516fcc5SVladimir Kondratiev * FW event handler, issue WMI command(s) to trigger MAC disconnect. 398b516fcc5SVladimir Kondratiev */ 399b516fcc5SVladimir Kondratiev void wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid, 4004821e6d8SVladimir Kondratiev u16 reason_code, bool from_event) 4012be7d22fSVladimir Kondratiev { 4029cf10d62SVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 4039cf10d62SVladimir Kondratiev 4042be7d22fSVladimir Kondratiev del_timer_sync(&wil->connect_timer); 4054821e6d8SVladimir Kondratiev _wil6210_disconnect(wil, bssid, reason_code, from_event); 4062be7d22fSVladimir Kondratiev } 4072be7d22fSVladimir Kondratiev 4082be7d22fSVladimir Kondratiev void wil_priv_deinit(struct wil6210_priv *wil) 4092be7d22fSVladimir Kondratiev { 4109cf10d62SVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 4119cf10d62SVladimir Kondratiev 412c33407a8SVladimir Kondratiev wil_set_recovery_state(wil, fw_recovery_idle); 413047e5d74SVladimir Kondratiev del_timer_sync(&wil->scan_timer); 4142be7d22fSVladimir Kondratiev cancel_work_sync(&wil->disconnect_worker); 415ed6f9dc6SVladimir Kondratiev cancel_work_sync(&wil->fw_error_worker); 416097638a0SVladimir Kondratiev mutex_lock(&wil->mutex); 4174821e6d8SVladimir Kondratiev wil6210_disconnect(wil, NULL, WLAN_REASON_DEAUTH_LEAVING, false); 418097638a0SVladimir Kondratiev mutex_unlock(&wil->mutex); 4192be7d22fSVladimir Kondratiev wmi_event_flush(wil); 4202be7d22fSVladimir Kondratiev destroy_workqueue(wil->wmi_wq_conn); 4212be7d22fSVladimir Kondratiev destroy_workqueue(wil->wmi_wq); 4222be7d22fSVladimir Kondratiev } 4232be7d22fSVladimir Kondratiev 424151a9706SVladimir Kondratiev /* target operations */ 425151a9706SVladimir Kondratiev /* register read */ 426151a9706SVladimir Kondratiev #define R(a) ioread32(wil->csr + HOSTADDR(a)) 427151a9706SVladimir Kondratiev /* register write. wmb() to make sure it is completed */ 428151a9706SVladimir Kondratiev #define W(a, v) do { iowrite32(v, wil->csr + HOSTADDR(a)); wmb(); } while (0) 429151a9706SVladimir Kondratiev /* register set = read, OR, write */ 430151a9706SVladimir Kondratiev #define S(a, v) W(a, R(a) | v) 431151a9706SVladimir Kondratiev /* register clear = read, AND with inverted, write */ 432151a9706SVladimir Kondratiev #define C(a, v) W(a, R(a) & ~v) 433151a9706SVladimir Kondratiev 434151a9706SVladimir Kondratiev static inline void wil_halt_cpu(struct wil6210_priv *wil) 435151a9706SVladimir Kondratiev { 436151a9706SVladimir Kondratiev W(RGF_USER_USER_CPU_0, BIT_USER_USER_CPU_MAN_RST); 437151a9706SVladimir Kondratiev W(RGF_USER_MAC_CPU_0, BIT_USER_MAC_CPU_MAN_RST); 438151a9706SVladimir Kondratiev } 439151a9706SVladimir Kondratiev 440151a9706SVladimir Kondratiev static inline void wil_release_cpu(struct wil6210_priv *wil) 441151a9706SVladimir Kondratiev { 442151a9706SVladimir Kondratiev /* Start CPU */ 443151a9706SVladimir Kondratiev W(RGF_USER_USER_CPU_0, 1); 444151a9706SVladimir Kondratiev } 445151a9706SVladimir Kondratiev 446bbb2adc7SVladimir Kondratiev static int wil_target_reset(struct wil6210_priv *wil) 4472be7d22fSVladimir Kondratiev { 44898a65b59SVladimir Kondratiev int delay = 0; 44948516298SVladimir Kondratiev u32 x; 45036b10a72SVladimir Kondratiev u32 rev_id; 4516508281bSVladimir Kondratiev bool is_sparrow = (wil->board->board == WIL_BOARD_SPARROW); 45236b10a72SVladimir Kondratiev 4536508281bSVladimir Kondratiev wil_dbg_misc(wil, "Resetting \"%s\"...\n", wil->board->name); 4542be7d22fSVladimir Kondratiev 45517123991SVladimir Kondratiev wil->hw_version = R(RGF_USER_FW_REV_ID); 45636b10a72SVladimir Kondratiev rev_id = wil->hw_version & 0xff; 4576508281bSVladimir Kondratiev 4586508281bSVladimir Kondratiev /* Clear MAC link up */ 4596508281bSVladimir Kondratiev S(RGF_HP_CTRL, BIT(15)); 460151a9706SVladimir Kondratiev S(RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_HPAL_PERST_FROM_PAD); 461151a9706SVladimir Kondratiev S(RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_CAR_PERST_RST); 462151a9706SVladimir Kondratiev 463151a9706SVladimir Kondratiev wil_halt_cpu(wil); 4642be7d22fSVladimir Kondratiev 4656508281bSVladimir Kondratiev if (is_sparrow) { 46648516298SVladimir Kondratiev S(RGF_CAF_OSC_CONTROL, BIT_CAF_OSC_XTAL_EN); 46748516298SVladimir Kondratiev /* XTAL stabilization should take about 3ms */ 46848516298SVladimir Kondratiev usleep_range(5000, 7000); 46948516298SVladimir Kondratiev x = R(RGF_CAF_PLL_LOCK_STATUS); 47048516298SVladimir Kondratiev if (!(x & BIT_CAF_OSC_DIG_XTAL_STABLE)) { 47148516298SVladimir Kondratiev wil_err(wil, "Xtal stabilization timeout\n" 47248516298SVladimir Kondratiev "RGF_CAF_PLL_LOCK_STATUS = 0x%08x\n", x); 47348516298SVladimir Kondratiev return -ETIME; 47448516298SVladimir Kondratiev } 47548516298SVladimir Kondratiev /* switch 10k to XTAL*/ 47648516298SVladimir Kondratiev C(RGF_USER_SPARROW_M_4, BIT_SPARROW_M_4_SEL_SLEEP_OR_REF); 47748516298SVladimir Kondratiev /* 40 MHz */ 47848516298SVladimir Kondratiev C(RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_CAR_AHB_SW_SEL); 47948516298SVladimir Kondratiev 4806508281bSVladimir Kondratiev W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x3ff81f); 481151a9706SVladimir Kondratiev W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0xf); 4826508281bSVladimir Kondratiev } 4836508281bSVladimir Kondratiev 4842be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0xFE000000); 4852be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0x0000003F); 486151a9706SVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, is_sparrow ? 0x000000f0 : 0x00000170); 487151a9706SVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0xFFE7FE00); 4882be7d22fSVladimir Kondratiev 4896508281bSVladimir Kondratiev if (is_sparrow) { 4906508281bSVladimir Kondratiev W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x0); 491151a9706SVladimir Kondratiev W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0x0); 4926508281bSVladimir Kondratiev } 4936508281bSVladimir Kondratiev 4942be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0); 4952be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0); 4962be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0); 4972be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0); 4982be7d22fSVladimir Kondratiev 4996508281bSVladimir Kondratiev if (is_sparrow) { 5006508281bSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x00000003); 5016508281bSVladimir Kondratiev /* reset A2 PCIE AHB */ 5026508281bSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00008000); 5036508281bSVladimir Kondratiev } else { 5042be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x00000001); 50536b10a72SVladimir Kondratiev if (rev_id == 1) { 5066508281bSVladimir Kondratiev /* reset A1 BOTH PCIE AHB & PCIE RGF */ 5072be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00000080); 50836b10a72SVladimir Kondratiev } else { 50917123991SVladimir Kondratiev W(RGF_PCIE_LOS_COUNTER_CTL, BIT(6) | BIT(8)); 51036b10a72SVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00008000); 51136b10a72SVladimir Kondratiev } 5126508281bSVladimir Kondratiev } 5136508281bSVladimir Kondratiev 5146508281bSVladimir Kondratiev /* TODO: check order here!!! Erez code is different */ 5152be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0); 5162be7d22fSVladimir Kondratiev 517520d68e7SVladimir Kondratiev /* wait until device ready. typical time is 200..250 msec */ 51836b10a72SVladimir Kondratiev do { 519520d68e7SVladimir Kondratiev msleep(RST_DELAY); 52048516298SVladimir Kondratiev x = R(RGF_USER_HW_MACHINE_STATE); 521520d68e7SVladimir Kondratiev if (delay++ > RST_COUNT) { 522d28bcc30SVladimir Kondratiev wil_err(wil, "Reset not completed, hw_state 0x%08x\n", 52348516298SVladimir Kondratiev x); 524bbb2adc7SVladimir Kondratiev return -ETIME; 52536b10a72SVladimir Kondratiev } 52648516298SVladimir Kondratiev } while (x != HW_MACHINE_BOOT_DONE); 52736b10a72SVladimir Kondratiev 5286508281bSVladimir Kondratiev /* TODO: Erez check rev_id != 1 */ 5296508281bSVladimir Kondratiev if (!is_sparrow && (rev_id != 1)) 53017123991SVladimir Kondratiev W(RGF_PCIE_LOS_COUNTER_CTL, BIT(8)); 53136b10a72SVladimir Kondratiev 532972072aaSVladimir Kondratiev C(RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_RST_PWGD); 533972072aaSVladimir Kondratiev 534520d68e7SVladimir Kondratiev wil_dbg_misc(wil, "Reset completed in %d ms\n", delay * RST_DELAY); 535bbb2adc7SVladimir Kondratiev return 0; 536151a9706SVladimir Kondratiev } 5372be7d22fSVladimir Kondratiev 538b6b1b0ecSVladimir Kondratiev /** 539b6b1b0ecSVladimir Kondratiev * wil_set_itr_trsh: - apply interrupt coalescing params 540b6b1b0ecSVladimir Kondratiev */ 541b6b1b0ecSVladimir Kondratiev void wil_set_itr_trsh(struct wil6210_priv *wil) 542b6b1b0ecSVladimir Kondratiev { 543b6b1b0ecSVladimir Kondratiev /* disable, use usec resolution */ 544b6b1b0ecSVladimir Kondratiev W(RGF_DMA_ITR_CNT_CRL, BIT_DMA_ITR_CNT_CRL_EXT_TICK); 545b6b1b0ecSVladimir Kondratiev 546b6b1b0ecSVladimir Kondratiev /* disable interrupt moderation for monitor 547b6b1b0ecSVladimir Kondratiev * to get better timestamp precision 548b6b1b0ecSVladimir Kondratiev */ 549b6b1b0ecSVladimir Kondratiev if (wil->wdev->iftype == NL80211_IFTYPE_MONITOR) 550b6b1b0ecSVladimir Kondratiev return; 551b6b1b0ecSVladimir Kondratiev 552b6b1b0ecSVladimir Kondratiev wil_info(wil, "set ITR_TRSH = %d usec\n", wil->itr_trsh); 553b6b1b0ecSVladimir Kondratiev W(RGF_DMA_ITR_CNT_TRSH, wil->itr_trsh); 554b6b1b0ecSVladimir Kondratiev W(RGF_DMA_ITR_CNT_CRL, BIT_DMA_ITR_CNT_CRL_EN | 555b6b1b0ecSVladimir Kondratiev BIT_DMA_ITR_CNT_CRL_EXT_TICK); /* start it */ 556b6b1b0ecSVladimir Kondratiev } 557b6b1b0ecSVladimir Kondratiev 55836b10a72SVladimir Kondratiev #undef R 5592be7d22fSVladimir Kondratiev #undef W 5602be7d22fSVladimir Kondratiev #undef S 561972072aaSVladimir Kondratiev #undef C 5622be7d22fSVladimir Kondratiev 5632be7d22fSVladimir Kondratiev void wil_mbox_ring_le2cpus(struct wil6210_mbox_ring *r) 5642be7d22fSVladimir Kondratiev { 5652be7d22fSVladimir Kondratiev le32_to_cpus(&r->base); 5662be7d22fSVladimir Kondratiev le16_to_cpus(&r->entry_size); 5672be7d22fSVladimir Kondratiev le16_to_cpus(&r->size); 5682be7d22fSVladimir Kondratiev le32_to_cpus(&r->tail); 5692be7d22fSVladimir Kondratiev le32_to_cpus(&r->head); 5702be7d22fSVladimir Kondratiev } 5712be7d22fSVladimir Kondratiev 5722be7d22fSVladimir Kondratiev static int wil_wait_for_fw_ready(struct wil6210_priv *wil) 5732be7d22fSVladimir Kondratiev { 5742be7d22fSVladimir Kondratiev ulong to = msecs_to_jiffies(1000); 5752be7d22fSVladimir Kondratiev ulong left = wait_for_completion_timeout(&wil->wmi_ready, to); 5768fe59627SVladimir Kondratiev 5772be7d22fSVladimir Kondratiev if (0 == left) { 5782be7d22fSVladimir Kondratiev wil_err(wil, "Firmware not ready\n"); 5792be7d22fSVladimir Kondratiev return -ETIME; 5802be7d22fSVladimir Kondratiev } else { 58115e23124SVladimir Kondratiev wil_info(wil, "FW ready after %d ms. HW version 0x%08x\n", 58215e23124SVladimir Kondratiev jiffies_to_msecs(to-left), wil->hw_version); 5832be7d22fSVladimir Kondratiev } 5842be7d22fSVladimir Kondratiev return 0; 5852be7d22fSVladimir Kondratiev } 5862be7d22fSVladimir Kondratiev 5872be7d22fSVladimir Kondratiev /* 5882be7d22fSVladimir Kondratiev * We reset all the structures, and we reset the UMAC. 5892be7d22fSVladimir Kondratiev * After calling this routine, you're expected to reload 5902be7d22fSVladimir Kondratiev * the firmware. 5912be7d22fSVladimir Kondratiev */ 5922be7d22fSVladimir Kondratiev int wil_reset(struct wil6210_priv *wil) 5932be7d22fSVladimir Kondratiev { 5942be7d22fSVladimir Kondratiev int rc; 5952be7d22fSVladimir Kondratiev 5969cf10d62SVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 5979cf10d62SVladimir Kondratiev 598097638a0SVladimir Kondratiev WARN_ON(!mutex_is_locked(&wil->mutex)); 59973d839aeSVladimir Kondratiev WARN_ON(test_bit(wil_status_napi_en, &wil->status)); 600097638a0SVladimir Kondratiev 601097638a0SVladimir Kondratiev cancel_work_sync(&wil->disconnect_worker); 6024821e6d8SVladimir Kondratiev wil6210_disconnect(wil, NULL, WLAN_REASON_DEAUTH_LEAVING, false); 603097638a0SVladimir Kondratiev 6040fef1818SVladimir Kondratiev wil->status = 0; /* prevent NAPI from being scheduled */ 6050fef1818SVladimir Kondratiev 606ed6f9dc6SVladimir Kondratiev if (wil->scan_request) { 607ed6f9dc6SVladimir Kondratiev wil_dbg_misc(wil, "Abort scan_request 0x%p\n", 608ed6f9dc6SVladimir Kondratiev wil->scan_request); 609047e5d74SVladimir Kondratiev del_timer_sync(&wil->scan_timer); 610ed6f9dc6SVladimir Kondratiev cfg80211_scan_done(wil->scan_request, true); 611ed6f9dc6SVladimir Kondratiev wil->scan_request = NULL; 612ed6f9dc6SVladimir Kondratiev } 613ed6f9dc6SVladimir Kondratiev 614e4dbb093SVladimir Kondratiev wil_mask_irq(wil); 6152be7d22fSVladimir Kondratiev 616e08b5906SVladimir Kondratiev wmi_event_flush(wil); 617e08b5906SVladimir Kondratiev 618e08b5906SVladimir Kondratiev flush_workqueue(wil->wmi_wq_conn); 619e08b5906SVladimir Kondratiev flush_workqueue(wil->wmi_wq); 620e08b5906SVladimir Kondratiev 621bbb2adc7SVladimir Kondratiev rc = wil_target_reset(wil); 6228bf6adb9SVladimir Kondratiev wil_rx_fini(wil); 623bbb2adc7SVladimir Kondratiev if (rc) 624bbb2adc7SVladimir Kondratiev return rc; 625bbb2adc7SVladimir Kondratiev 626151a9706SVladimir Kondratiev if (!no_fw_load) { 627151a9706SVladimir Kondratiev wil_info(wil, "Use firmware <%s>\n", WIL_FW_NAME); 628151a9706SVladimir Kondratiev wil_halt_cpu(wil); 629151a9706SVladimir Kondratiev /* Loading f/w from the file */ 630151a9706SVladimir Kondratiev rc = wil_request_firmware(wil, WIL_FW_NAME); 631151a9706SVladimir Kondratiev if (rc) 632151a9706SVladimir Kondratiev return rc; 633151a9706SVladimir Kondratiev 634151a9706SVladimir Kondratiev /* clear any interrupts which on-card-firmware may have set */ 635151a9706SVladimir Kondratiev wil6210_clear_irq(wil); 636151a9706SVladimir Kondratiev { /* CAF_ICR - clear and mask */ 637151a9706SVladimir Kondratiev u32 a = HOSTADDR(RGF_CAF_ICR) + 638151a9706SVladimir Kondratiev offsetof(struct RGF_ICR, ICR); 639151a9706SVladimir Kondratiev u32 m = HOSTADDR(RGF_CAF_ICR) + 640151a9706SVladimir Kondratiev offsetof(struct RGF_ICR, IMV); 641151a9706SVladimir Kondratiev u32 icr = ioread32(wil->csr + a); 642151a9706SVladimir Kondratiev 643151a9706SVladimir Kondratiev iowrite32(icr, wil->csr + a); /* W1C */ 644151a9706SVladimir Kondratiev iowrite32(~0, wil->csr + m); 645151a9706SVladimir Kondratiev wmb(); /* wait for completion */ 646151a9706SVladimir Kondratiev } 647151a9706SVladimir Kondratiev wil_release_cpu(wil); 648151a9706SVladimir Kondratiev } else { 649151a9706SVladimir Kondratiev wil_info(wil, "Use firmware from on-card flash\n"); 650151a9706SVladimir Kondratiev } 6518bf6adb9SVladimir Kondratiev 6522be7d22fSVladimir Kondratiev /* init after reset */ 6532be7d22fSVladimir Kondratiev wil->pending_connect_cid = -1; 65416735d02SWolfram Sang reinit_completion(&wil->wmi_ready); 65559502647SDedy Lansky reinit_completion(&wil->wmi_call); 6562be7d22fSVladimir Kondratiev 657e4dbb093SVladimir Kondratiev wil_unmask_irq(wil); 6582be7d22fSVladimir Kondratiev 6592be7d22fSVladimir Kondratiev /* we just started MAC, wait for FW ready */ 6602be7d22fSVladimir Kondratiev rc = wil_wait_for_fw_ready(wil); 6612be7d22fSVladimir Kondratiev 6622be7d22fSVladimir Kondratiev return rc; 6632be7d22fSVladimir Kondratiev } 6642be7d22fSVladimir Kondratiev 665ed6f9dc6SVladimir Kondratiev void wil_fw_error_recovery(struct wil6210_priv *wil) 666ed6f9dc6SVladimir Kondratiev { 667ed6f9dc6SVladimir Kondratiev wil_dbg_misc(wil, "starting fw error recovery\n"); 668c33407a8SVladimir Kondratiev wil->recovery_state = fw_recovery_pending; 669ed6f9dc6SVladimir Kondratiev schedule_work(&wil->fw_error_worker); 670ed6f9dc6SVladimir Kondratiev } 6712be7d22fSVladimir Kondratiev 6722be7d22fSVladimir Kondratiev void wil_link_on(struct wil6210_priv *wil) 6732be7d22fSVladimir Kondratiev { 6742be7d22fSVladimir Kondratiev struct net_device *ndev = wil_to_ndev(wil); 6752be7d22fSVladimir Kondratiev 6767743882dSVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 6772be7d22fSVladimir Kondratiev 6782be7d22fSVladimir Kondratiev netif_carrier_on(ndev); 67955f8f680SVladimir Kondratiev wil_dbg_misc(wil, "netif_tx_wake : link on\n"); 6802be7d22fSVladimir Kondratiev netif_tx_wake_all_queues(ndev); 6812be7d22fSVladimir Kondratiev } 6822be7d22fSVladimir Kondratiev 6832be7d22fSVladimir Kondratiev void wil_link_off(struct wil6210_priv *wil) 6842be7d22fSVladimir Kondratiev { 6852be7d22fSVladimir Kondratiev struct net_device *ndev = wil_to_ndev(wil); 6862be7d22fSVladimir Kondratiev 6877743882dSVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 6882be7d22fSVladimir Kondratiev 6892be7d22fSVladimir Kondratiev netif_tx_stop_all_queues(ndev); 69055f8f680SVladimir Kondratiev wil_dbg_misc(wil, "netif_tx_stop : link off\n"); 6912be7d22fSVladimir Kondratiev netif_carrier_off(ndev); 6922be7d22fSVladimir Kondratiev } 6932be7d22fSVladimir Kondratiev 69473d839aeSVladimir Kondratiev int __wil_up(struct wil6210_priv *wil) 6952be7d22fSVladimir Kondratiev { 6962be7d22fSVladimir Kondratiev struct net_device *ndev = wil_to_ndev(wil); 6972be7d22fSVladimir Kondratiev struct wireless_dev *wdev = wil->wdev; 6982be7d22fSVladimir Kondratiev int rc; 6992be7d22fSVladimir Kondratiev 700097638a0SVladimir Kondratiev WARN_ON(!mutex_is_locked(&wil->mutex)); 701097638a0SVladimir Kondratiev 7022be7d22fSVladimir Kondratiev rc = wil_reset(wil); 7032be7d22fSVladimir Kondratiev if (rc) 7042be7d22fSVladimir Kondratiev return rc; 7052be7d22fSVladimir Kondratiev 706e31b2562SVladimir Kondratiev /* Rx VRING. After MAC and beacon */ 707e31b2562SVladimir Kondratiev rc = wil_rx_init(wil); 708e31b2562SVladimir Kondratiev if (rc) 709e31b2562SVladimir Kondratiev return rc; 710e31b2562SVladimir Kondratiev 7112be7d22fSVladimir Kondratiev switch (wdev->iftype) { 7122be7d22fSVladimir Kondratiev case NL80211_IFTYPE_STATION: 7137743882dSVladimir Kondratiev wil_dbg_misc(wil, "type: STATION\n"); 7142be7d22fSVladimir Kondratiev ndev->type = ARPHRD_ETHER; 7152be7d22fSVladimir Kondratiev break; 7162be7d22fSVladimir Kondratiev case NL80211_IFTYPE_AP: 7177743882dSVladimir Kondratiev wil_dbg_misc(wil, "type: AP\n"); 7182be7d22fSVladimir Kondratiev ndev->type = ARPHRD_ETHER; 7192be7d22fSVladimir Kondratiev break; 7202be7d22fSVladimir Kondratiev case NL80211_IFTYPE_P2P_CLIENT: 7217743882dSVladimir Kondratiev wil_dbg_misc(wil, "type: P2P_CLIENT\n"); 7222be7d22fSVladimir Kondratiev ndev->type = ARPHRD_ETHER; 7232be7d22fSVladimir Kondratiev break; 7242be7d22fSVladimir Kondratiev case NL80211_IFTYPE_P2P_GO: 7257743882dSVladimir Kondratiev wil_dbg_misc(wil, "type: P2P_GO\n"); 7262be7d22fSVladimir Kondratiev ndev->type = ARPHRD_ETHER; 7272be7d22fSVladimir Kondratiev break; 7282be7d22fSVladimir Kondratiev case NL80211_IFTYPE_MONITOR: 7297743882dSVladimir Kondratiev wil_dbg_misc(wil, "type: Monitor\n"); 7302be7d22fSVladimir Kondratiev ndev->type = ARPHRD_IEEE80211_RADIOTAP; 7312be7d22fSVladimir Kondratiev /* ARPHRD_IEEE80211 or ARPHRD_IEEE80211_RADIOTAP ? */ 7322be7d22fSVladimir Kondratiev break; 7332be7d22fSVladimir Kondratiev default: 7342be7d22fSVladimir Kondratiev return -EOPNOTSUPP; 7352be7d22fSVladimir Kondratiev } 7362be7d22fSVladimir Kondratiev 7372be7d22fSVladimir Kondratiev /* MAC address - pre-requisite for other commands */ 7382be7d22fSVladimir Kondratiev wmi_set_mac_address(wil, ndev->dev_addr); 7392be7d22fSVladimir Kondratiev 74073d839aeSVladimir Kondratiev wil_dbg_misc(wil, "NAPI enable\n"); 741e0287c4aSVladimir Kondratiev napi_enable(&wil->napi_rx); 742e0287c4aSVladimir Kondratiev napi_enable(&wil->napi_tx); 7430fef1818SVladimir Kondratiev set_bit(wil_status_napi_en, &wil->status); 744e0287c4aSVladimir Kondratiev 745f772ebfbSVladimir Kondratiev if (wil->platform_ops.bus_request) 746f772ebfbSVladimir Kondratiev wil->platform_ops.bus_request(wil->platform_handle, 747f772ebfbSVladimir Kondratiev WIL_MAX_BUS_REQUEST_KBPS); 748f772ebfbSVladimir Kondratiev 7492be7d22fSVladimir Kondratiev return 0; 7502be7d22fSVladimir Kondratiev } 7512be7d22fSVladimir Kondratiev 7522be7d22fSVladimir Kondratiev int wil_up(struct wil6210_priv *wil) 7532be7d22fSVladimir Kondratiev { 7542be7d22fSVladimir Kondratiev int rc; 7552be7d22fSVladimir Kondratiev 7569cf10d62SVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 7579cf10d62SVladimir Kondratiev 7582be7d22fSVladimir Kondratiev mutex_lock(&wil->mutex); 7592be7d22fSVladimir Kondratiev rc = __wil_up(wil); 7602be7d22fSVladimir Kondratiev mutex_unlock(&wil->mutex); 7612be7d22fSVladimir Kondratiev 7622be7d22fSVladimir Kondratiev return rc; 7632be7d22fSVladimir Kondratiev } 7642be7d22fSVladimir Kondratiev 76573d839aeSVladimir Kondratiev int __wil_down(struct wil6210_priv *wil) 7662be7d22fSVladimir Kondratiev { 767f172b563SDedy Lansky int iter = WAIT_FOR_DISCONNECT_TIMEOUT_MS / 768f172b563SDedy Lansky WAIT_FOR_DISCONNECT_INTERVAL_MS; 769f172b563SDedy Lansky 770097638a0SVladimir Kondratiev WARN_ON(!mutex_is_locked(&wil->mutex)); 771097638a0SVladimir Kondratiev 772f772ebfbSVladimir Kondratiev if (wil->platform_ops.bus_request) 773f772ebfbSVladimir Kondratiev wil->platform_ops.bus_request(wil->platform_handle, 0); 774f772ebfbSVladimir Kondratiev 77573d839aeSVladimir Kondratiev wil_disable_irq(wil); 77673d839aeSVladimir Kondratiev if (test_and_clear_bit(wil_status_napi_en, &wil->status)) { 777e0287c4aSVladimir Kondratiev napi_disable(&wil->napi_rx); 778e0287c4aSVladimir Kondratiev napi_disable(&wil->napi_tx); 77973d839aeSVladimir Kondratiev wil_dbg_misc(wil, "NAPI disable\n"); 78073d839aeSVladimir Kondratiev } 78173d839aeSVladimir Kondratiev wil_enable_irq(wil); 782e0287c4aSVladimir Kondratiev 7832be7d22fSVladimir Kondratiev if (wil->scan_request) { 7842a91d7d0SVladimir Kondratiev wil_dbg_misc(wil, "Abort scan_request 0x%p\n", 7852a91d7d0SVladimir Kondratiev wil->scan_request); 786047e5d74SVladimir Kondratiev del_timer_sync(&wil->scan_timer); 7872be7d22fSVladimir Kondratiev cfg80211_scan_done(wil->scan_request, true); 7882be7d22fSVladimir Kondratiev wil->scan_request = NULL; 7892be7d22fSVladimir Kondratiev } 7902be7d22fSVladimir Kondratiev 791f172b563SDedy Lansky if (test_bit(wil_status_fwconnected, &wil->status) || 792f172b563SDedy Lansky test_bit(wil_status_fwconnecting, &wil->status)) 793f172b563SDedy Lansky wmi_send(wil, WMI_DISCONNECT_CMDID, NULL, 0); 794f172b563SDedy Lansky 795f172b563SDedy Lansky /* make sure wil is idle (not connected) */ 796f172b563SDedy Lansky mutex_unlock(&wil->mutex); 797f172b563SDedy Lansky while (iter--) { 798f172b563SDedy Lansky int idle = !test_bit(wil_status_fwconnected, &wil->status) && 799f172b563SDedy Lansky !test_bit(wil_status_fwconnecting, &wil->status); 800f172b563SDedy Lansky if (idle) 801f172b563SDedy Lansky break; 802f172b563SDedy Lansky msleep(WAIT_FOR_DISCONNECT_INTERVAL_MS); 803f172b563SDedy Lansky } 804f172b563SDedy Lansky mutex_lock(&wil->mutex); 805f172b563SDedy Lansky 806f172b563SDedy Lansky if (!iter) 807f172b563SDedy Lansky wil_err(wil, "timeout waiting for idle FW/HW\n"); 808f172b563SDedy Lansky 8092be7d22fSVladimir Kondratiev wil_rx_fini(wil); 8102be7d22fSVladimir Kondratiev 8112be7d22fSVladimir Kondratiev return 0; 8122be7d22fSVladimir Kondratiev } 8132be7d22fSVladimir Kondratiev 8142be7d22fSVladimir Kondratiev int wil_down(struct wil6210_priv *wil) 8152be7d22fSVladimir Kondratiev { 8162be7d22fSVladimir Kondratiev int rc; 8172be7d22fSVladimir Kondratiev 8189cf10d62SVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 8199cf10d62SVladimir Kondratiev 820c33407a8SVladimir Kondratiev wil_set_recovery_state(wil, fw_recovery_idle); 8212be7d22fSVladimir Kondratiev mutex_lock(&wil->mutex); 8222be7d22fSVladimir Kondratiev rc = __wil_down(wil); 8232be7d22fSVladimir Kondratiev mutex_unlock(&wil->mutex); 8242be7d22fSVladimir Kondratiev 8252be7d22fSVladimir Kondratiev return rc; 8262be7d22fSVladimir Kondratiev } 8273df2cd36SVladimir Kondratiev 8283df2cd36SVladimir Kondratiev int wil_find_cid(struct wil6210_priv *wil, const u8 *mac) 8293df2cd36SVladimir Kondratiev { 8303df2cd36SVladimir Kondratiev int i; 8313df2cd36SVladimir Kondratiev int rc = -ENOENT; 8323df2cd36SVladimir Kondratiev 8333df2cd36SVladimir Kondratiev for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 8343df2cd36SVladimir Kondratiev if ((wil->sta[i].status != wil_sta_unused) && 835108d1eb6SVladimir Kondratiev ether_addr_equal(wil->sta[i].addr, mac)) { 8363df2cd36SVladimir Kondratiev rc = i; 8373df2cd36SVladimir Kondratiev break; 8383df2cd36SVladimir Kondratiev } 8393df2cd36SVladimir Kondratiev } 8403df2cd36SVladimir Kondratiev 8413df2cd36SVladimir Kondratiev return rc; 8423df2cd36SVladimir Kondratiev } 843