--- zzzz-none-000/linux-4.4.60/drivers/net/wireless/ath/wil6210/main.c 2017-04-08 07:53:53.000000000 +0000 +++ wasp-540e-714/linux-4.4.60/drivers/net/wireless/ath/wil6210/main.c 2019-07-03 09:21:34.000000000 +0000 @@ -1,5 +1,6 @@ /* - * Copyright (c) 2012-2015 Qualcomm Atheros, Inc. + * Copyright (c) 2012-2017 Qualcomm Atheros, Inc. + * Copyright (c) 2018, The Linux Foundation. All rights reserved. * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -17,28 +18,34 @@ #include #include #include +#include #include "wil6210.h" #include "txrx.h" #include "wmi.h" #include "boot_loader.h" -#define WAIT_FOR_DISCONNECT_TIMEOUT_MS 2000 -#define WAIT_FOR_DISCONNECT_INTERVAL_MS 10 +#define WAIT_FOR_HALP_VOTE_MS 100 +#define WAIT_FOR_SCAN_ABORT_MS 1000 bool debug_fw; /* = false; */ -module_param(debug_fw, bool, S_IRUGO); +module_param(debug_fw, bool, 0444); MODULE_PARM_DESC(debug_fw, " do not perform card reset. For FW debug"); +static u8 oob_mode; +module_param(oob_mode, byte, 0444); +MODULE_PARM_DESC(oob_mode, + " enable out of the box (OOB) mode in FW, for diagnostics and certification"); + bool no_fw_recovery; -module_param(no_fw_recovery, bool, S_IRUGO | S_IWUSR); +module_param(no_fw_recovery, bool, 0644); MODULE_PARM_DESC(no_fw_recovery, " disable automatic FW error recovery"); /* if not set via modparam, will be set to default value of 1/8 of * rx ring size during init flow */ unsigned short rx_ring_overflow_thrsh = WIL6210_RX_HIGH_TRSH_INIT; -module_param(rx_ring_overflow_thrsh, ushort, S_IRUGO); +module_param(rx_ring_overflow_thrsh, ushort, 0444); MODULE_PARM_DESC(rx_ring_overflow_thrsh, " RX ring overflow threshold in descriptors."); @@ -68,7 +75,7 @@ .get = param_get_uint, }; -module_param_cb(mtu_max, &mtu_max_ops, &mtu_max, S_IRUGO); +module_param_cb(mtu_max, &mtu_max_ops, &mtu_max, 0444); MODULE_PARM_DESC(mtu_max, " Max MTU value."); static uint rx_ring_order = WIL_RX_RING_SIZE_ORDER_DEFAULT; @@ -97,11 +104,11 @@ .get = param_get_uint, }; -module_param_cb(rx_ring_order, &ring_order_ops, &rx_ring_order, S_IRUGO); +module_param_cb(rx_ring_order, &ring_order_ops, &rx_ring_order, 0444); MODULE_PARM_DESC(rx_ring_order, " Rx ring order; size = 1 << order"); -module_param_cb(tx_ring_order, &ring_order_ops, &tx_ring_order, S_IRUGO); +module_param_cb(tx_ring_order, &ring_order_ops, &tx_ring_order, 0444); MODULE_PARM_DESC(tx_ring_order, " Tx ring order; size = 1 << order"); -module_param_cb(bcast_ring_order, &ring_order_ops, &bcast_ring_order, S_IRUGO); +module_param_cb(bcast_ring_order, &ring_order_ops, &bcast_ring_order, 0444); MODULE_PARM_DESC(bcast_ring_order, " Bcast ring order; size = 1 << order"); #define RST_DELAY (20) /* msec, for loop in @wil_target_reset */ @@ -125,9 +132,15 @@ u32 *d = dst; const volatile u32 __iomem *s = src; - /* size_t is unsigned, if (count%4 != 0) it will wrap */ - for (count += 4; count > 4; count -= 4) + for (; count >= 4; count -= 4) *d++ = __raw_readl(s++); + + if (unlikely(count)) { + /* count can be 1..3 */ + u32 tmp = __raw_readl(s); + + memcpy(d, &tmp, count); + } } void wil_memcpy_toio_32(volatile void __iomem *dst, const void *src, @@ -136,8 +149,16 @@ volatile u32 __iomem *d = dst; const u32 *s = src; - for (count += 4; count > 4; count -= 4) + for (; count >= 4; count -= 4) __raw_writel(*s++, d++); + + if (unlikely(count)) { + /* count can be 1..3 */ + u32 tmp = 0; + + memcpy(&tmp, s, count); + __raw_writel(tmp, d); + } } static void wil_disconnect_cid(struct wil6210_priv *wil, int cid, @@ -150,12 +171,16 @@ struct wil_sta_info *sta = &wil->sta[cid]; might_sleep(); - wil_dbg_misc(wil, "%s(CID %d, status %d)\n", __func__, cid, - sta->status); - + wil_dbg_misc(wil, "disconnect_cid: CID %d, status %d\n", + cid, sta->status); + /* inform upper/lower layers */ if (sta->status != wil_sta_unused) { - if (!from_event) - wmi_disconnect_sta(wil, sta->addr, reason_code); + if (!from_event) { + bool del_sta = (wdev->iftype == NL80211_IFTYPE_AP) ? + disable_ap_sme : false; + wmi_disconnect_sta(wil, sta->addr, reason_code, + true, del_sta); + } switch (wdev->iftype) { case NL80211_IFTYPE_AP: @@ -167,8 +192,9 @@ break; } sta->status = wil_sta_unused; + sta->fst_link_loss = false; } - + /* reorder buffers */ for (i = 0; i < WIL_STA_TID_NUM; i++) { struct wil_tid_ampdu_rx *r; @@ -180,13 +206,30 @@ spin_unlock_bh(&sta->tid_rx_lock); } + /* crypto context */ + memset(sta->tid_crypto_rx, 0, sizeof(sta->tid_crypto_rx)); + memset(&sta->group_crypto_rx, 0, sizeof(sta->group_crypto_rx)); + /* release vrings */ for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) { if (wil->vring2cid_tid[i][0] == cid) wil_vring_fini_tx(wil, i); } + /* statistics */ memset(&sta->stats, 0, sizeof(sta->stats)); } +static bool wil_is_connected(struct wil6210_priv *wil) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { + if (wil->sta[i].status == wil_sta_connected) + return true; + } + + return false; +} + static void _wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid, u16 reason_code, bool from_event) { @@ -194,9 +237,12 @@ struct net_device *ndev = wil_to_ndev(wil); struct wireless_dev *wdev = wil->wdev; + if (unlikely(!ndev)) + return; + might_sleep(); - wil_dbg_misc(wil, "%s(bssid=%pM, reason=%d, ev%s)\n", __func__, bssid, - reason_code, from_event ? "+" : "-"); + wil_info(wil, "bssid=%pM, reason=%d, ev%s\n", bssid, + reason_code, from_event ? "+" : "-"); /* Cases are: * - disconnect single STA, still connected @@ -226,20 +272,34 @@ case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_P2P_CLIENT: wil_bcast_fini(wil); - netif_tx_stop_all_queues(ndev); + wil_update_net_queues_bh(wil, NULL, true); netif_carrier_off(ndev); + wil6210_bus_request(wil, WIL_DEFAULT_BUS_REQUEST_KBPS); if (test_bit(wil_status_fwconnected, wil->status)) { clear_bit(wil_status_fwconnected, wil->status); cfg80211_disconnected(ndev, reason_code, - NULL, 0, false, GFP_KERNEL); + NULL, 0, + wil->locally_generated_disc, + GFP_KERNEL); + wil->locally_generated_disc = false; } else if (test_bit(wil_status_fwconnecting, wil->status)) { cfg80211_connect_result(ndev, bssid, NULL, 0, NULL, 0, WLAN_STATUS_UNSPECIFIED_FAILURE, GFP_KERNEL); + wil->bss = NULL; } clear_bit(wil_status_fwconnecting, wil->status); break; + case NL80211_IFTYPE_AP: + case NL80211_IFTYPE_P2P_GO: + if (!wil_is_connected(wil)) { + wil_update_net_queues_bh(wil, NULL, true); + clear_bit(wil_status_fwconnected, wil->status); + } else { + wil_update_net_queues_bh(wil, NULL, false); + } + break; default: break; } @@ -249,22 +309,49 @@ { struct wil6210_priv *wil = container_of(work, struct wil6210_priv, disconnect_worker); + struct net_device *ndev = wil_to_ndev(wil); + int rc; + struct { + struct wmi_cmd_hdr wmi; + struct wmi_disconnect_event evt; + } __packed reply; - mutex_lock(&wil->mutex); - _wil6210_disconnect(wil, NULL, WLAN_REASON_UNSPECIFIED, false); - mutex_unlock(&wil->mutex); + if (test_bit(wil_status_fwconnected, wil->status)) + /* connect succeeded after all */ + return; + + if (!test_bit(wil_status_fwconnecting, wil->status)) + /* already disconnected */ + return; + + rc = wmi_call(wil, WMI_DISCONNECT_CMDID, NULL, 0, + WMI_DISCONNECT_EVENTID, &reply, sizeof(reply), + WIL6210_DISCONNECT_TO_MS); + if (rc) { + wil_err(wil, "disconnect error %d\n", rc); + return; + } + + wil_update_net_queues_bh(wil, NULL, true); + netif_carrier_off(ndev); + cfg80211_connect_result(ndev, NULL, NULL, 0, NULL, 0, + WLAN_STATUS_UNSPECIFIED_FAILURE, GFP_KERNEL); + clear_bit(wil_status_fwconnecting, wil->status); } static void wil_connect_timer_fn(ulong x) { struct wil6210_priv *wil = (void *)x; + bool q; - wil_dbg_misc(wil, "Connect timeout\n"); + wil_err(wil, "Connect timeout detected, disconnect station\n"); /* reschedule to thread context - disconnect won't - * run from atomic context + * run from atomic context. + * queue on wmi_wq to prevent race with connect event. */ - schedule_work(&wil->disconnect_worker); + q = queue_work(wil->wmi_wq, &wil->disconnect_worker); + wil_dbg_wmi(wil, "queue_work of disconnect_worker -> %d\n", q); } static void wil_scan_timer_fn(ulong x) @@ -293,22 +380,29 @@ void wil_set_recovery_state(struct wil6210_priv *wil, int state) { - wil_dbg_misc(wil, "%s(%d -> %d)\n", __func__, + wil_dbg_misc(wil, "set_recovery_state: %d -> %d\n", wil->recovery_state, state); wil->recovery_state = state; wake_up_interruptible(&wil->wq); } +bool wil_is_recovery_blocked(struct wil6210_priv *wil) +{ + return no_fw_recovery && (wil->recovery_state == fw_recovery_pending); +} + static void wil_fw_error_worker(struct work_struct *work) { struct wil6210_priv *wil = container_of(work, struct wil6210_priv, fw_error_worker); struct wireless_dev *wdev = wil->wdev; + struct net_device *ndev = wil_to_ndev(wil); + int rc; wil_dbg_misc(wil, "fw error worker\n"); - if (!netif_running(wil_to_ndev(wil))) { + if (!(ndev->flags & IFF_UP)) { wil_info(wil, "No recovery - interface is down\n"); return; } @@ -330,32 +424,47 @@ wil->last_fw_recovery = jiffies; + wil_info(wil, "fw error recovery requested (try %d)...\n", + wil->recovery_count); + if (!no_fw_recovery) + wil->recovery_state = fw_recovery_running; + if (wil_wait_for_recovery(wil) != 0) + return; + + rtnl_lock(); mutex_lock(&wil->mutex); switch (wdev->iftype) { case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_P2P_CLIENT: case NL80211_IFTYPE_MONITOR: - wil_info(wil, "fw error recovery requested (try %d)...\n", - wil->recovery_count); - if (!no_fw_recovery) - wil->recovery_state = fw_recovery_running; - if (0 != wil_wait_for_recovery(wil)) - break; - + /* silent recovery, upper layers will see disconnect */ __wil_down(wil); __wil_up(wil); break; case NL80211_IFTYPE_AP: case NL80211_IFTYPE_P2P_GO: - wil_info(wil, "No recovery for AP-like interface\n"); - /* recovery in these modes is done by upper layers */ + if (no_fw_recovery) /* upper layers do recovery */ + break; + /* upper layers will see down/up events */ + wil_info(wil, "Recovery for AP-like interface - ifdown...\n"); + mutex_unlock(&wil->mutex); /* protected by rtnl_lock */ + dev_close(ndev); /* never returns error */ + msleep(1000); + wil_info(wil, "... ifup...\n"); + rc = dev_open(ndev); + if (rc) + wil_err(wil, "dev_open: %d\n", rc); + mutex_lock(&wil->mutex); + wil_info(wil, "... completed\n"); break; default: wil_err(wil, "No recovery - unknown interface type %d\n", wdev->iftype); break; } + mutex_unlock(&wil->mutex); + rtnl_unlock(); } static int wil_find_free_vring(struct wil6210_priv *wil) @@ -369,6 +478,32 @@ return -EINVAL; } +int wil_tx_init(struct wil6210_priv *wil, int cid) +{ + int rc = -EINVAL, ringid; + + if (cid < 0) { + wil_err(wil, "No connection pending\n"); + goto out; + } + ringid = wil_find_free_vring(wil); + if (ringid < 0) { + wil_err(wil, "No free vring found\n"); + goto out; + } + + wil_dbg_wmi(wil, "Configure for connection CID %d vring %d\n", + cid, ringid); + + rc = wil_vring_init_tx(wil, ringid, 1 << tx_ring_order, cid, 0); + if (rc) + wil_err(wil, "wil_vring_init_tx for CID %d vring %d failed\n", + cid, ringid); + +out: + return rc; +} + int wil_bcast_init(struct wil6210_priv *wil) { int ri = wil->bcast_vring, rc; @@ -399,72 +534,50 @@ wil_vring_fini_tx(wil, ri); } -static void wil_connect_worker(struct work_struct *work) -{ - int rc; - struct wil6210_priv *wil = container_of(work, struct wil6210_priv, - connect_worker); - struct net_device *ndev = wil_to_ndev(wil); - - int cid = wil->pending_connect_cid; - int ringid = wil_find_free_vring(wil); - - if (cid < 0) { - wil_err(wil, "No connection pending\n"); - return; - } - - wil_dbg_wmi(wil, "Configure for connection CID %d\n", cid); - - rc = wil_vring_init_tx(wil, ringid, 1 << tx_ring_order, cid, 0); - wil->pending_connect_cid = -1; - if (rc == 0) { - wil->sta[cid].status = wil_sta_connected; - netif_tx_wake_all_queues(ndev); - } else { - wil_disconnect_cid(wil, cid, WLAN_REASON_UNSPECIFIED, true); - } -} - int wil_priv_init(struct wil6210_priv *wil) { uint i; - wil_dbg_misc(wil, "%s()\n", __func__); + wil_dbg_misc(wil, "priv_init\n"); memset(wil->sta, 0, sizeof(wil->sta)); for (i = 0; i < WIL6210_MAX_CID; i++) spin_lock_init(&wil->sta[i].tid_rx_lock); + for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) + spin_lock_init(&wil->vring_tx_data[i].lock); + mutex_init(&wil->mutex); mutex_init(&wil->wmi_mutex); - mutex_init(&wil->back_rx_mutex); - mutex_init(&wil->back_tx_mutex); mutex_init(&wil->probe_client_mutex); + mutex_init(&wil->p2p_wdev_mutex); + mutex_init(&wil->halp.lock); init_completion(&wil->wmi_ready); init_completion(&wil->wmi_call); + init_completion(&wil->halp.comp); - wil->pending_connect_cid = -1; wil->bcast_vring = -1; setup_timer(&wil->connect_timer, wil_connect_timer_fn, (ulong)wil); setup_timer(&wil->scan_timer, wil_scan_timer_fn, (ulong)wil); + setup_timer(&wil->p2p.discovery_timer, wil_p2p_discovery_timer_fn, + (ulong)wil); - INIT_WORK(&wil->connect_worker, wil_connect_worker); INIT_WORK(&wil->disconnect_worker, wil_disconnect_worker); INIT_WORK(&wil->wmi_event_worker, wmi_event_worker); INIT_WORK(&wil->fw_error_worker, wil_fw_error_worker); - INIT_WORK(&wil->back_rx_worker, wil_back_rx_worker); - INIT_WORK(&wil->back_tx_worker, wil_back_tx_worker); INIT_WORK(&wil->probe_client_worker, wil_probe_client_worker); + INIT_WORK(&wil->p2p.delayed_listen_work, wil_p2p_delayed_listen_work); INIT_LIST_HEAD(&wil->pending_wmi_ev); - INIT_LIST_HEAD(&wil->back_rx_pending); - INIT_LIST_HEAD(&wil->back_tx_pending); INIT_LIST_HEAD(&wil->probe_client_pending); spin_lock_init(&wil->wmi_ev_lock); + spin_lock_init(&wil->net_queue_lock); + wil->net_queue_stopped = 1; init_waitqueue_head(&wil->wq); + wil_ftm_init(wil); + wil->wmi_wq = create_singlethread_workqueue(WIL_NAME "_wmi"); if (!wil->wmi_wq) return -EAGAIN; @@ -481,6 +594,14 @@ if (rx_ring_overflow_thrsh == WIL6210_RX_HIGH_TRSH_INIT) rx_ring_overflow_thrsh = WIL6210_RX_HIGH_TRSH_DEFAULT; + + wil->ps_profile = WMI_PS_PROFILE_TYPE_DEFAULT; + + wil->wakeup_trigger = WMI_WAKEUP_TRIGGER_UCAST | + WMI_WAKEUP_TRIGGER_BCAST; + memset(&wil->suspend_stats, 0, sizeof(wil->suspend_stats)); + wil->vring_idle_trsh = 16; + return 0; out_wmi_wq: @@ -489,6 +610,14 @@ return -EAGAIN; } +void wil6210_bus_request(struct wil6210_priv *wil, u32 kbps) +{ + if (wil->platform_ops.bus_request) { + wil->bus_request_kbps = kbps; + wil->platform_ops.bus_request(wil->platform_handle, kbps); + } +} + /** * wil6210_disconnect - disconnect one connection * @wil: driver context @@ -502,7 +631,7 @@ void wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid, u16 reason_code, bool from_event) { - wil_dbg_misc(wil, "%s()\n", __func__); + wil_dbg_misc(wil, "disconnect\n"); del_timer_sync(&wil->connect_timer); _wil6210_disconnect(wil, bssid, reason_code, from_event); @@ -510,24 +639,117 @@ void wil_priv_deinit(struct wil6210_priv *wil) { - wil_dbg_misc(wil, "%s()\n", __func__); + wil_dbg_misc(wil, "priv_deinit\n"); + wil_ftm_deinit(wil); wil_set_recovery_state(wil, fw_recovery_idle); del_timer_sync(&wil->scan_timer); + del_timer_sync(&wil->p2p.discovery_timer); cancel_work_sync(&wil->disconnect_worker); cancel_work_sync(&wil->fw_error_worker); + cancel_work_sync(&wil->p2p.discovery_expired_work); + cancel_work_sync(&wil->p2p.delayed_listen_work); mutex_lock(&wil->mutex); wil6210_disconnect(wil, NULL, WLAN_REASON_DEAUTH_LEAVING, false); mutex_unlock(&wil->mutex); wmi_event_flush(wil); - wil_back_rx_flush(wil); - cancel_work_sync(&wil->back_rx_worker); - wil_back_tx_flush(wil); - cancel_work_sync(&wil->back_tx_worker); wil_probe_client_flush(wil); cancel_work_sync(&wil->probe_client_worker); destroy_workqueue(wil->wq_service); destroy_workqueue(wil->wmi_wq); + kfree(wil->board_file); +} + +static void wil_shutdown_bl(struct wil6210_priv *wil) +{ + u32 val; + + wil_s(wil, RGF_USER_BL + + offsetof(struct bl_dedicated_registers_v1, + bl_shutdown_handshake), BL_SHUTDOWN_HS_GRTD); + + usleep_range(100, 150); + + val = wil_r(wil, RGF_USER_BL + + offsetof(struct bl_dedicated_registers_v1, + bl_shutdown_handshake)); + if (val & BL_SHUTDOWN_HS_RTD) { + wil_dbg_misc(wil, "BL is ready for halt\n"); + return; + } + + wil_err(wil, "BL did not report ready for halt\n"); +} + +/* this format is used by ARC embedded CPU for instruction memory */ +static inline u32 ARC_me_imm32(u32 d) +{ + return ((d & 0xffff0000) >> 16) | ((d & 0x0000ffff) << 16); +} + +/* defines access to interrupt vectors for wil_freeze_bl */ +#define ARC_IRQ_VECTOR_OFFSET(N) ((N) * 8) +/* ARC long jump instruction */ +#define ARC_JAL_INST (0x20200f80) + +static void wil_freeze_bl(struct wil6210_priv *wil) +{ + u32 jal, upc, saved; + u32 ivt3 = ARC_IRQ_VECTOR_OFFSET(3); + + jal = wil_r(wil, wil->iccm_base + ivt3); + if (jal != ARC_me_imm32(ARC_JAL_INST)) { + wil_dbg_misc(wil, "invalid IVT entry found, skipping\n"); + return; + } + + /* prevent the target from entering deep sleep + * and disabling memory access + */ + saved = wil_r(wil, RGF_USER_USAGE_8); + wil_w(wil, RGF_USER_USAGE_8, saved | BIT_USER_PREVENT_DEEP_SLEEP); + usleep_range(20, 25); /* let the BL process the bit */ + + /* redirect to endless loop in the INT_L1 context and let it trap */ + wil_w(wil, wil->iccm_base + ivt3 + 4, ARC_me_imm32(ivt3)); + usleep_range(20, 25); /* let the BL get into the trap */ + + /* verify the BL is frozen */ + upc = wil_r(wil, RGF_USER_CPU_PC); + if (upc < ivt3 || (upc > (ivt3 + 8))) + wil_dbg_misc(wil, "BL freeze failed, PC=0x%08X\n", upc); + + wil_w(wil, RGF_USER_USAGE_8, saved); +} + +static void wil_bl_prepare_halt(struct wil6210_priv *wil) +{ + u32 tmp, ver; + + /* before halting device CPU driver must make sure BL is not accessing + * host memory. This is done differently depending on BL version: + * 1. For very old BL versions the procedure is skipped + * (not supported). + * 2. For old BL version we use a special trick to freeze the BL + * 3. For new BL versions we shutdown the BL using handshake procedure. + */ + tmp = wil_r(wil, RGF_USER_BL + + offsetof(struct bl_dedicated_registers_v0, + boot_loader_struct_version)); + if (!tmp) { + wil_dbg_misc(wil, "old BL, skipping halt preperation\n"); + return; + } + + tmp = wil_r(wil, RGF_USER_BL + + offsetof(struct bl_dedicated_registers_v1, + bl_shutdown_handshake)); + ver = BL_SHUTDOWN_HS_PROT_VER(tmp); + + if (ver > 0) + wil_shutdown_bl(wil); + else + wil_freeze_bl(wil); } static inline void wil_halt_cpu(struct wil6210_priv *wil) @@ -542,7 +764,28 @@ wil_w(wil, RGF_USER_USER_CPU_0, 1); } -static int wil_target_reset(struct wil6210_priv *wil) +static void wil_set_oob_mode(struct wil6210_priv *wil, u8 mode) +{ + wil_info(wil, "oob_mode to %d\n", mode); + switch (mode) { + case 0: + wil_c(wil, RGF_USER_USAGE_6, BIT_USER_OOB_MODE | + BIT_USER_OOB_R2_MODE); + break; + case 1: + wil_c(wil, RGF_USER_USAGE_6, BIT_USER_OOB_R2_MODE); + wil_s(wil, RGF_USER_USAGE_6, BIT_USER_OOB_MODE); + break; + case 2: + wil_c(wil, RGF_USER_USAGE_6, BIT_USER_OOB_MODE); + wil_s(wil, RGF_USER_USAGE_6, BIT_USER_OOB_R2_MODE); + break; + default: + wil_err(wil, "invalid oob_mode: %d\n", mode); + } +} + +static int wil_target_reset(struct wil6210_priv *wil, int no_flash) { int delay = 0; u32 x, x1 = 0; @@ -556,9 +799,16 @@ wil_halt_cpu(wil); - /* clear all boot loader "ready" bits */ - wil_w(wil, RGF_USER_BL + - offsetof(struct bl_dedicated_registers_v0, boot_loader_ready), 0); + if (!no_flash) { + /* clear all boot loader "ready" bits */ + wil_w(wil, RGF_USER_BL + + offsetof(struct bl_dedicated_registers_v0, + boot_loader_ready), 0); + /* this should be safe to write even with old BLs */ + wil_w(wil, RGF_USER_BL + + offsetof(struct bl_dedicated_registers_v1, + bl_shutdown_handshake), 0); + } /* Clear Fw Download notification */ wil_c(wil, RGF_USER_USAGE_6, BIT(0)); @@ -599,21 +849,33 @@ wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0); /* wait until device ready. typical time is 20..80 msec */ - do { - msleep(RST_DELAY); - x = wil_r(wil, RGF_USER_BL + - offsetof(struct bl_dedicated_registers_v0, - boot_loader_ready)); - if (x1 != x) { - wil_dbg_misc(wil, "BL.ready 0x%08x => 0x%08x\n", x1, x); - x1 = x; - } - if (delay++ > RST_COUNT) { - wil_err(wil, "Reset not completed, bl.ready 0x%08x\n", - x); - return -ETIME; - } - } while (x != BL_READY); + if (no_flash) + do { + msleep(RST_DELAY); + x = wil_r(wil, USER_EXT_USER_PMU_3); + if (delay++ > RST_COUNT) { + wil_err(wil, "Reset not completed, PMU_3 0x%08x\n", + x); + return -ETIME; + } + } while ((x & BIT_PMU_DEVICE_RDY) == 0); + else + do { + msleep(RST_DELAY); + x = wil_r(wil, RGF_USER_BL + + offsetof(struct bl_dedicated_registers_v0, + boot_loader_ready)); + if (x1 != x) { + wil_dbg_misc(wil, "BL.ready 0x%08x => 0x%08x\n", + x1, x); + x1 = x; + } + if (delay++ > RST_COUNT) { + wil_err(wil, "Reset not completed, bl.ready 0x%08x\n", + x); + return -ETIME; + } + } while (x != BL_READY); wil_c(wil, RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_RST_PWGD); @@ -621,10 +883,77 @@ wil_s(wil, RGF_DMA_OFUL_NID_0, BIT_DMA_OFUL_NID_0_RX_EXT_TR_EN | BIT_DMA_OFUL_NID_0_RX_EXT_A3_SRC); + if (no_flash) { + /* Reset OTP HW vectors to fit 40MHz */ + wil_w(wil, RGF_USER_XPM_IFC_RD_TIME1, 0x60001); + wil_w(wil, RGF_USER_XPM_IFC_RD_TIME2, 0x20027); + wil_w(wil, RGF_USER_XPM_IFC_RD_TIME3, 0x1); + wil_w(wil, RGF_USER_XPM_IFC_RD_TIME4, 0x20027); + wil_w(wil, RGF_USER_XPM_IFC_RD_TIME5, 0x30003); + wil_w(wil, RGF_USER_XPM_IFC_RD_TIME6, 0x20002); + wil_w(wil, RGF_USER_XPM_IFC_RD_TIME7, 0x60001); + wil_w(wil, RGF_USER_XPM_IFC_RD_TIME8, 0x60001); + wil_w(wil, RGF_USER_XPM_IFC_RD_TIME9, 0x60001); + wil_w(wil, RGF_USER_XPM_IFC_RD_TIME10, 0x60001); + wil_w(wil, RGF_USER_XPM_RD_DOUT_SAMPLE_TIME, 0x57); + } + wil_dbg_misc(wil, "Reset completed in %d ms\n", delay * RST_DELAY); return 0; } +static void wil_collect_fw_info(struct wil6210_priv *wil) +{ + struct wiphy *wiphy = wil_to_wiphy(wil); + u8 retry_short; + int rc; + + wil_refresh_fw_capabilities(wil); + + rc = wmi_get_mgmt_retry(wil, &retry_short); + if (!rc) { + wiphy->retry_short = retry_short; + wil_dbg_misc(wil, "FW retry_short: %d\n", retry_short); + } +} + +void wil_refresh_fw_capabilities(struct wil6210_priv *wil) +{ + struct wiphy *wiphy = wil_to_wiphy(wil); + int features; + + wil->keep_radio_on_during_sleep = + test_bit(WIL_PLATFORM_CAPA_RADIO_ON_IN_SUSPEND, + wil->platform_capa) && + test_bit(WMI_FW_CAPABILITY_D3_SUSPEND, wil->fw_capabilities); + + wil_info(wil, "keep_radio_on_during_sleep (%d)\n", + wil->keep_radio_on_during_sleep); + + if (test_bit(WMI_FW_CAPABILITY_RSSI_REPORTING, wil->fw_capabilities)) + wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; + else + wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; + + if (test_bit(WMI_FW_CAPABILITY_PNO, wil->fw_capabilities)) { + wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; + wiphy->max_sched_scan_ssids = WMI_MAX_PNO_SSID_NUM; + wiphy->max_match_sets = WMI_MAX_PNO_SSID_NUM; + wiphy->max_sched_scan_ie_len = WMI_MAX_IE_LEN; + wiphy->max_sched_scan_plans = WMI_MAX_PLANS_NUM; + } + + if (wil->platform_ops.set_features) { + features = (test_bit(WMI_FW_CAPABILITY_REF_CLOCK_CONTROL, + wil->fw_capabilities) && + test_bit(WIL_PLATFORM_CAPA_EXT_CLK, + wil->platform_capa)) ? + BIT(WIL_PLATFORM_FEATURE_FW_EXT_CLK_CONTROL) : 0; + + wil->platform_ops.set_features(wil->platform_handle, features); + } +} + void wil_mbox_ring_le2cpus(struct wil6210_mbox_ring *r) { le32_to_cpus(&r->base); @@ -637,6 +966,7 @@ static int wil_get_bl_info(struct wil6210_priv *wil) { struct net_device *ndev = wil_to_ndev(wil); + struct wiphy *wiphy = wil_to_wiphy(wil); union { struct bl_dedicated_registers_v0 bl0; struct bl_dedicated_registers_v1 bl1; @@ -681,6 +1011,7 @@ } ether_addr_copy(ndev->perm_addr, mac); + ether_addr_copy(wiphy->perm_addr, mac); if (!is_valid_ether_addr(ndev->dev_addr)) ether_addr_copy(ndev->dev_addr, mac); @@ -724,6 +1055,27 @@ } } +static int wil_get_otp_info(struct wil6210_priv *wil) +{ + struct net_device *ndev = wil_to_ndev(wil); + struct wiphy *wiphy = wil_to_wiphy(wil); + u8 mac[8]; + + wil_memcpy_fromio_32(mac, wil->csr + HOSTADDR(RGF_OTP_MAC), + sizeof(mac)); + if (!is_valid_ether_addr(mac)) { + wil_err(wil, "Invalid MAC %pM\n", mac); + return -EINVAL; + } + + ether_addr_copy(ndev->perm_addr, mac); + ether_addr_copy(wiphy->perm_addr, mac); + if (!is_valid_ether_addr(ndev->dev_addr)) + ether_addr_copy(ndev->dev_addr, mac); + + return 0; +} + static int wil_wait_for_fw_ready(struct wil6210_priv *wil) { ulong to = msecs_to_jiffies(1000); @@ -739,6 +1091,72 @@ return 0; } +void wil_abort_scan(struct wil6210_priv *wil, bool sync) +{ + int rc; + + lockdep_assert_held(&wil->p2p_wdev_mutex); + + if (!wil->scan_request) + return; + + wil_dbg_misc(wil, "Abort scan_request 0x%p\n", wil->scan_request); + del_timer_sync(&wil->scan_timer); + mutex_unlock(&wil->p2p_wdev_mutex); + rc = wmi_abort_scan(wil); + if (!rc && sync) + wait_event_interruptible_timeout(wil->wq, !wil->scan_request, + msecs_to_jiffies( + WAIT_FOR_SCAN_ABORT_MS)); + + mutex_lock(&wil->p2p_wdev_mutex); + if (wil->scan_request) { + cfg80211_scan_done(wil->scan_request, true); + wil->scan_request = NULL; + } +} + +int wil_ps_update(struct wil6210_priv *wil, enum wmi_ps_profile_type ps_profile) +{ + int rc; + + if (!test_bit(WMI_FW_CAPABILITY_PS_CONFIG, wil->fw_capabilities)) { + wil_err(wil, "set_power_mgmt not supported\n"); + return -EOPNOTSUPP; + } + + rc = wmi_ps_dev_profile_cfg(wil, ps_profile); + if (rc) + wil_err(wil, "wmi_ps_dev_profile_cfg failed (%d)\n", rc); + else + wil->ps_profile = ps_profile; + + return rc; +} + +static void wil_pre_fw_config(struct wil6210_priv *wil) +{ + /* Mark FW as loaded from host */ + wil_s(wil, RGF_USER_USAGE_6, 1); + + /* clear any interrupts which on-card-firmware + * may have set + */ + wil6210_clear_irq(wil); + /* CAF_ICR - clear and mask */ + /* it is W1C, clear by writing back same value */ + wil_s(wil, RGF_CAF_ICR + offsetof(struct RGF_ICR, ICR), 0); + wil_w(wil, RGF_CAF_ICR + offsetof(struct RGF_ICR, IMV), ~0); + /* clear PAL_UNIT_ICR (potential D0->D3 leftover) */ + wil_s(wil, RGF_PAL_UNIT_ICR + offsetof(struct RGF_ICR, ICR), 0); + + if (wil->fw_calib_result > 0) { + __le32 val = cpu_to_le32(wil->fw_calib_result | + (CALIB_RESULT_SIGNATURE << 8)); + wil_w(wil, RGF_USER_FW_CALIB_RESULT, (u32 __force)val); + } +} + /* * We reset all the structures, and we reset the UMAC. * After calling this routine, you're expected to reload @@ -747,8 +1165,10 @@ int wil_reset(struct wil6210_priv *wil, bool load_fw) { int rc; + unsigned long status_flags = BIT(wil_status_resetting); + int no_flash; - wil_dbg_misc(wil, "%s()\n", __func__); + wil_dbg_misc(wil, "reset\n"); WARN_ON(!mutex_is_locked(&wil->mutex)); WARN_ON(test_bit(wil_status_napi_en, wil->status)); @@ -767,22 +1187,53 @@ if (wil->hw_version == HW_VER_UNKNOWN) return -ENODEV; + if (test_bit(WIL_PLATFORM_CAPA_T_PWR_ON_0, wil->platform_capa)) { + wil_dbg_misc(wil, "Notify FW to set T_POWER_ON=0\n"); + wil_s(wil, RGF_USER_USAGE_8, BIT_USER_SUPPORT_T_POWER_ON_0); + } + + if (test_bit(WIL_PLATFORM_CAPA_EXT_CLK, wil->platform_capa)) { + wil_dbg_misc(wil, "Notify FW on ext clock configuration\n"); + wil_s(wil, RGF_USER_USAGE_8, BIT_USER_EXT_CLK); + } + + if (wil->platform_ops.notify) { + rc = wil->platform_ops.notify(wil->platform_handle, + WIL_PLATFORM_EVT_PRE_RESET); + if (rc) + wil_err(wil, "PRE_RESET platform notify failed, rc %d\n", + rc); + } + set_bit(wil_status_resetting, wil->status); + if (test_bit(wil_status_collecting_dumps, wil->status)) { + /* Device collects crash dump, cancel the reset. + * following crash dump collection, reset would take place. + */ + wil_dbg_misc(wil, "reject reset while collecting crash dump\n"); + rc = -EBUSY; + goto out; + } cancel_work_sync(&wil->disconnect_worker); wil6210_disconnect(wil, NULL, WLAN_REASON_DEAUTH_LEAVING, false); wil_bcast_fini(wil); - /* prevent NAPI from being scheduled */ - bitmap_zero(wil->status, wil_status_last); + /* Disable device led before reset*/ + wmi_led_cfg(wil, false); - if (wil->scan_request) { - wil_dbg_misc(wil, "Abort scan_request 0x%p\n", - wil->scan_request); - del_timer_sync(&wil->scan_timer); - cfg80211_scan_done(wil->scan_request, true); - wil->scan_request = NULL; - } + mutex_lock(&wil->p2p_wdev_mutex); + wil_abort_scan(wil, false); + mutex_unlock(&wil->p2p_wdev_mutex); + + /* prevent NAPI from being scheduled and prevent wmi commands */ + mutex_lock(&wil->wmi_mutex); + if (test_bit(wil_status_suspending, wil->status)) + status_flags |= BIT(wil_status_suspending); + bitmap_and(wil->status, wil->status, &status_flags, + wil_status_last); + wil_dbg_misc(wil, "wil->status (0x%lx)\n", *wil->status); + mutex_unlock(&wil->wmi_mutex); wil_mask_irq(wil); @@ -791,53 +1242,65 @@ flush_workqueue(wil->wq_service); flush_workqueue(wil->wmi_wq); - wil_bl_crash_info(wil, false); - rc = wil_target_reset(wil); + no_flash = test_bit(hw_capa_no_flash, wil->hw_capa); + if (!no_flash) + wil_bl_crash_info(wil, false); + wil_disable_irq(wil); + rc = wil_target_reset(wil, no_flash); + wil6210_clear_irq(wil); + wil_enable_irq(wil); wil_rx_fini(wil); if (rc) { - wil_bl_crash_info(wil, true); - return rc; + if (!no_flash) + wil_bl_crash_info(wil, true); + goto out; } - rc = wil_get_bl_info(wil); - if (rc == -EAGAIN && !load_fw) /* ignore RF error if not going up */ - rc = 0; + if (no_flash) { + rc = wil_get_otp_info(wil); + } else { + rc = wil_get_bl_info(wil); + if (rc == -EAGAIN && !load_fw) + /* ignore RF error if not going up */ + rc = 0; + } if (rc) - return rc; + goto out; + wil_set_oob_mode(wil, oob_mode); if (load_fw) { - wil_info(wil, "Use firmware <%s> + board <%s>\n", WIL_FW_NAME, - WIL_FW2_NAME); + wil_info(wil, "Use firmware <%s> + board <%s>\n", + wil->wil_fw_name, wil_get_board_file(wil)); + + if (!no_flash) + wil_bl_prepare_halt(wil); wil_halt_cpu(wil); + memset(wil->fw_version, 0, sizeof(wil->fw_version)); /* Loading f/w from the file */ - rc = wil_request_firmware(wil, WIL_FW_NAME); + rc = wil_request_firmware(wil, wil->wil_fw_name, true); if (rc) - return rc; - rc = wil_request_firmware(wil, WIL_FW2_NAME); + goto out; + if (wil->brd_file_addr) + rc = wil_request_board(wil, WIL_BOARD_FILE_NAME); + else + rc = wil_request_firmware(wil, + WIL_BOARD_FILE_NAME, + true); if (rc) - return rc; - - /* Mark FW as loaded from host */ - wil_s(wil, RGF_USER_USAGE_6, 1); - - /* clear any interrupts which on-card-firmware - * may have set - */ - wil6210_clear_irq(wil); - /* CAF_ICR - clear and mask */ - /* it is W1C, clear by writing back same value */ - wil_s(wil, RGF_CAF_ICR + offsetof(struct RGF_ICR, ICR), 0); - wil_w(wil, RGF_CAF_ICR + offsetof(struct RGF_ICR, IMV), ~0); + goto out; + wil_pre_fw_config(wil); wil_release_cpu(wil); } /* init after reset */ - wil->pending_connect_cid = -1; wil->ap_isolate = 0; reinit_completion(&wil->wmi_ready); reinit_completion(&wil->wmi_call); + reinit_completion(&wil->halp.comp); + + clear_bit(wil_status_resetting, wil->status); if (load_fw) { wil_configure_interrupt_moderation(wil); @@ -845,11 +1308,37 @@ /* we just started MAC, wait for FW ready */ rc = wil_wait_for_fw_ready(wil); - if (rc == 0) /* check FW is responsive */ - rc = wmi_echo(wil); + if (rc) + return rc; + + /* check FW is responsive */ + rc = wmi_echo(wil); + if (rc) { + wil_err(wil, "wmi_echo failed, rc %d\n", rc); + return rc; + } + + wil_collect_fw_info(wil); + + if (wil->ps_profile != WMI_PS_PROFILE_TYPE_DEFAULT) + wil_ps_update(wil, wil->ps_profile); + + if (wil->platform_ops.notify) { + rc = wil->platform_ops.notify(wil->platform_handle, + WIL_PLATFORM_EVT_FW_RDY); + if (rc) { + wil_err(wil, "FW_RDY notify failed, rc %d\n", + rc); + rc = 0; + } + } } return rc; + +out: + clear_bit(wil_status_resetting, wil->status); + return rc; } void wil_fw_error_recovery(struct wil6210_priv *wil) @@ -916,9 +1405,7 @@ napi_enable(&wil->napi_tx); set_bit(wil_status_napi_en, wil->status); - if (wil->platform_ops.bus_request) - wil->platform_ops.bus_request(wil->platform_handle, - WIL_MAX_BUS_REQUEST_KBPS); + wil6210_bus_request(wil, WIL_DEFAULT_BUS_REQUEST_KBPS); return 0; } @@ -927,7 +1414,7 @@ { int rc; - wil_dbg_misc(wil, "%s()\n", __func__); + wil_dbg_misc(wil, "up\n"); mutex_lock(&wil->mutex); rc = __wil_up(wil); @@ -938,13 +1425,11 @@ int __wil_down(struct wil6210_priv *wil) { - int iter = WAIT_FOR_DISCONNECT_TIMEOUT_MS / - WAIT_FOR_DISCONNECT_INTERVAL_MS; - WARN_ON(!mutex_is_locked(&wil->mutex)); - if (wil->platform_ops.bus_request) - wil->platform_ops.bus_request(wil->platform_handle, 0); + set_bit(wil_status_resetting, wil->status); + + wil6210_bus_request(wil, 0); wil_disable_irq(wil); if (test_and_clear_bit(wil_status_napi_en, wil->status)) { @@ -954,42 +1439,21 @@ } wil_enable_irq(wil); - if (wil->scan_request) { - wil_dbg_misc(wil, "Abort scan_request 0x%p\n", - wil->scan_request); - del_timer_sync(&wil->scan_timer); - cfg80211_scan_done(wil->scan_request, true); - wil->scan_request = NULL; - } + wil_ftm_stop_operations(wil); - if (test_bit(wil_status_fwconnected, wil->status) || - test_bit(wil_status_fwconnecting, wil->status)) - wmi_send(wil, WMI_DISCONNECT_CMDID, NULL, 0); + mutex_lock(&wil->p2p_wdev_mutex); + wil_p2p_stop_radio_operations(wil); + wil_abort_scan(wil, false); + mutex_unlock(&wil->p2p_wdev_mutex); - /* make sure wil is idle (not connected) */ - mutex_unlock(&wil->mutex); - while (iter--) { - int idle = !test_bit(wil_status_fwconnected, wil->status) && - !test_bit(wil_status_fwconnecting, wil->status); - if (idle) - break; - msleep(WAIT_FOR_DISCONNECT_INTERVAL_MS); - } - mutex_lock(&wil->mutex); - - if (!iter) - wil_err(wil, "timeout waiting for idle FW/HW\n"); - - wil_reset(wil, false); - - return 0; + return wil_reset(wil, false); } int wil_down(struct wil6210_priv *wil) { int rc; - wil_dbg_misc(wil, "%s()\n", __func__); + wil_dbg_misc(wil, "down\n"); wil_set_recovery_state(wil, fw_recovery_idle); mutex_lock(&wil->mutex); @@ -1014,3 +1478,54 @@ return rc; } + +void wil_halp_vote(struct wil6210_priv *wil) +{ + unsigned long rc; + unsigned long to_jiffies = msecs_to_jiffies(WAIT_FOR_HALP_VOTE_MS); + + mutex_lock(&wil->halp.lock); + + wil_dbg_irq(wil, "halp_vote: start, HALP ref_cnt (%d)\n", + wil->halp.ref_cnt); + + if (++wil->halp.ref_cnt == 1) { + reinit_completion(&wil->halp.comp); + wil6210_set_halp(wil); + rc = wait_for_completion_timeout(&wil->halp.comp, to_jiffies); + if (!rc) { + wil_err(wil, "HALP vote timed out\n"); + /* Mask HALP as done in case the interrupt is raised */ + wil6210_mask_halp(wil); + } else { + wil_dbg_irq(wil, + "halp_vote: HALP vote completed after %d ms\n", + jiffies_to_msecs(to_jiffies - rc)); + } + } + + wil_dbg_irq(wil, "halp_vote: end, HALP ref_cnt (%d)\n", + wil->halp.ref_cnt); + + mutex_unlock(&wil->halp.lock); +} + +void wil_halp_unvote(struct wil6210_priv *wil) +{ + WARN_ON(wil->halp.ref_cnt == 0); + + mutex_lock(&wil->halp.lock); + + wil_dbg_irq(wil, "halp_unvote: start, HALP ref_cnt (%d)\n", + wil->halp.ref_cnt); + + if (--wil->halp.ref_cnt == 0) { + wil6210_clear_halp(wil); + wil_dbg_irq(wil, "HALP unvote\n"); + } + + wil_dbg_irq(wil, "halp_unvote:end, HALP ref_cnt (%d)\n", + wil->halp.ref_cnt); + + mutex_unlock(&wil->halp.lock); +}