diff options
Diffstat (limited to 'drivers/net/wireless/ath/wil6210/main.c')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/main.c | 2014 |
1 files changed, 2014 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c new file mode 100644 index 000000000..94e61dbe9 --- /dev/null +++ b/drivers/net/wireless/ath/wil6210/main.c @@ -0,0 +1,2014 @@ +// SPDX-License-Identifier: ISC +/* + * Copyright (c) 2012-2017 Qualcomm Atheros, Inc. + * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved. + */ + +#include <linux/moduleparam.h> +#include <linux/if_arp.h> +#include <linux/etherdevice.h> +#include <linux/rtnetlink.h> + +#include "wil6210.h" +#include "txrx.h" +#include "txrx_edma.h" +#include "wmi.h" +#include "boot_loader.h" + +#define WAIT_FOR_HALP_VOTE_MS 100 +#define WAIT_FOR_SCAN_ABORT_MS 1000 +#define WIL_DEFAULT_NUM_RX_STATUS_RINGS 1 +#define WIL_BOARD_FILE_MAX_NAMELEN 128 + +bool debug_fw; /* = false; */ +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, 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, 0444); +MODULE_PARM_DESC(rx_ring_overflow_thrsh, + " RX ring overflow threshold in descriptors."); + +/* We allow allocation of more than 1 page buffers to support large packets. + * It is suboptimal behavior performance wise in case MTU above page size. + */ +unsigned int mtu_max = TXRX_BUF_LEN_DEFAULT - WIL_MAX_MPDU_OVERHEAD; +static int mtu_max_set(const char *val, const struct kernel_param *kp) +{ + int ret; + + /* sets mtu_max directly. no need to restore it in case of + * illegal value since we assume this will fail insmod + */ + ret = param_set_uint(val, kp); + if (ret) + return ret; + + if (mtu_max < 68 || mtu_max > WIL_MAX_ETH_MTU) + ret = -EINVAL; + + return ret; +} + +static const struct kernel_param_ops mtu_max_ops = { + .set = mtu_max_set, + .get = param_get_uint, +}; + +module_param_cb(mtu_max, &mtu_max_ops, &mtu_max, 0444); +MODULE_PARM_DESC(mtu_max, " Max MTU value."); + +static uint rx_ring_order; +static uint tx_ring_order = WIL_TX_RING_SIZE_ORDER_DEFAULT; +static uint bcast_ring_order = WIL_BCAST_RING_SIZE_ORDER_DEFAULT; + +static int ring_order_set(const char *val, const struct kernel_param *kp) +{ + int ret; + uint x; + + ret = kstrtouint(val, 0, &x); + if (ret) + return ret; + + if ((x < WIL_RING_SIZE_ORDER_MIN) || (x > WIL_RING_SIZE_ORDER_MAX)) + return -EINVAL; + + *((uint *)kp->arg) = x; + + return 0; +} + +static const struct kernel_param_ops ring_order_ops = { + .set = ring_order_set, + .get = param_get_uint, +}; + +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, 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, 0444); +MODULE_PARM_DESC(bcast_ring_order, " Bcast ring order; size = 1 << order"); + +enum { + WIL_BOOT_ERR, + WIL_BOOT_VANILLA, + WIL_BOOT_PRODUCTION, + WIL_BOOT_DEVELOPMENT, +}; + +enum { + WIL_SIG_STATUS_VANILLA = 0x0, + WIL_SIG_STATUS_DEVELOPMENT = 0x1, + WIL_SIG_STATUS_PRODUCTION = 0x2, + WIL_SIG_STATUS_CORRUPTED_PRODUCTION = 0x3, +}; + +#define RST_DELAY (20) /* msec, for loop in @wil_wait_device_ready */ +#define RST_COUNT (1 + 1000/RST_DELAY) /* round up to be above 1 sec total */ + +#define PMU_READY_DELAY_MS (4) /* ms, for sleep in @wil_wait_device_ready */ + +#define OTP_HW_DELAY (200) /* usec, loop in @wil_wait_device_ready_talyn_mb */ +/* round up to be above 2 ms total */ +#define OTP_HW_COUNT (1 + 2000 / OTP_HW_DELAY) + +/* + * Due to a hardware issue, + * one has to read/write to/from NIC in 32-bit chunks; + * regular memcpy_fromio and siblings will + * not work on 64-bit platform - it uses 64-bit transactions + * + * Force 32-bit transactions to enable NIC on 64-bit platforms + * + * To avoid byte swap on big endian host, __raw_{read|write}l + * should be used - {read|write}l would swap bytes to provide + * little endian on PCI value in host endianness. + */ +void wil_memcpy_fromio_32(void *dst, const volatile void __iomem *src, + size_t count) +{ + u32 *d = dst; + const volatile u32 __iomem *s = src; + + 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, + size_t count) +{ + volatile u32 __iomem *d = dst; + const u32 *s = src; + + 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); + } +} + +/* Device memory access is prohibited while reset or suspend. + * wil_mem_access_lock protects accessing device memory in these cases + */ +int wil_mem_access_lock(struct wil6210_priv *wil) +{ + if (!down_read_trylock(&wil->mem_lock)) + return -EBUSY; + + if (test_bit(wil_status_suspending, wil->status) || + test_bit(wil_status_suspended, wil->status)) { + up_read(&wil->mem_lock); + return -EBUSY; + } + + return 0; +} + +void wil_mem_access_unlock(struct wil6210_priv *wil) +{ + up_read(&wil->mem_lock); +} + +static void wil_ring_fini_tx(struct wil6210_priv *wil, int id) +{ + struct wil_ring *ring = &wil->ring_tx[id]; + struct wil_ring_tx_data *txdata = &wil->ring_tx_data[id]; + + lockdep_assert_held(&wil->mutex); + + if (!ring->va) + return; + + wil_dbg_misc(wil, "vring_fini_tx: id=%d\n", id); + + spin_lock_bh(&txdata->lock); + txdata->dot1x_open = false; + txdata->mid = U8_MAX; + txdata->enabled = 0; /* no Tx can be in progress or start anew */ + spin_unlock_bh(&txdata->lock); + /* napi_synchronize waits for completion of the current NAPI but will + * not prevent the next NAPI run. + * Add a memory barrier to guarantee that txdata->enabled is zeroed + * before napi_synchronize so that the next scheduled NAPI will not + * handle this vring + */ + wmb(); + /* make sure NAPI won't touch this vring */ + if (test_bit(wil_status_napi_en, wil->status)) + napi_synchronize(&wil->napi_tx); + + wil->txrx_ops.ring_fini_tx(wil, ring); +} + +static bool wil_vif_is_connected(struct wil6210_priv *wil, u8 mid) +{ + int i; + + for (i = 0; i < wil->max_assoc_sta; i++) { + if (wil->sta[i].mid == mid && + wil->sta[i].status == wil_sta_connected) + return true; + } + + return false; +} + +static void wil_disconnect_cid_complete(struct wil6210_vif *vif, int cid, + u16 reason_code) +__acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock) +{ + uint i; + struct wil6210_priv *wil = vif_to_wil(vif); + struct net_device *ndev = vif_to_ndev(vif); + struct wireless_dev *wdev = vif_to_wdev(vif); + struct wil_sta_info *sta = &wil->sta[cid]; + int min_ring_id = wil_get_min_tx_ring_id(wil); + + might_sleep(); + wil_dbg_misc(wil, + "disconnect_cid_complete: CID %d, MID %d, status %d\n", + cid, sta->mid, sta->status); + /* inform upper layers */ + if (sta->status != wil_sta_unused) { + if (vif->mid != sta->mid) { + wil_err(wil, "STA MID mismatch with VIF MID(%d)\n", + vif->mid); + } + + switch (wdev->iftype) { + case NL80211_IFTYPE_AP: + case NL80211_IFTYPE_P2P_GO: + /* AP-like interface */ + cfg80211_del_sta(ndev, sta->addr, GFP_KERNEL); + break; + default: + break; + } + sta->status = wil_sta_unused; + sta->mid = U8_MAX; + } + /* reorder buffers */ + for (i = 0; i < WIL_STA_TID_NUM; i++) { + struct wil_tid_ampdu_rx *r; + + spin_lock_bh(&sta->tid_rx_lock); + + r = sta->tid_rx[i]; + sta->tid_rx[i] = NULL; + wil_tid_ampdu_rx_free(wil, r); + + 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 = min_ring_id; i < ARRAY_SIZE(wil->ring_tx); i++) { + if (wil->ring2cid_tid[i][0] == cid) + wil_ring_fini_tx(wil, i); + } + /* statistics */ + memset(&sta->stats, 0, sizeof(sta->stats)); + sta->stats.tx_latency_min_us = U32_MAX; +} + +static void _wil6210_disconnect_complete(struct wil6210_vif *vif, + const u8 *bssid, u16 reason_code) +{ + struct wil6210_priv *wil = vif_to_wil(vif); + int cid = -ENOENT; + struct net_device *ndev; + struct wireless_dev *wdev; + + ndev = vif_to_ndev(vif); + wdev = vif_to_wdev(vif); + + might_sleep(); + wil_info(wil, "disconnect_complete: bssid=%pM, reason=%d\n", + bssid, reason_code); + + /* Cases are: + * - disconnect single STA, still connected + * - disconnect single STA, already disconnected + * - disconnect all + * + * For "disconnect all", there are 3 options: + * - bssid == NULL + * - bssid is broadcast address (ff:ff:ff:ff:ff:ff) + * - bssid is our MAC address + */ + if (bssid && !is_broadcast_ether_addr(bssid) && + !ether_addr_equal_unaligned(ndev->dev_addr, bssid)) { + cid = wil_find_cid(wil, vif->mid, bssid); + wil_dbg_misc(wil, + "Disconnect complete %pM, CID=%d, reason=%d\n", + bssid, cid, reason_code); + if (wil_cid_valid(wil, cid)) /* disconnect 1 peer */ + wil_disconnect_cid_complete(vif, cid, reason_code); + } else { /* all */ + wil_dbg_misc(wil, "Disconnect complete all\n"); + for (cid = 0; cid < wil->max_assoc_sta; cid++) + wil_disconnect_cid_complete(vif, cid, reason_code); + } + + /* link state */ + switch (wdev->iftype) { + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_P2P_CLIENT: + wil_bcast_fini(vif); + wil_update_net_queues_bh(wil, vif, NULL, true); + netif_carrier_off(ndev); + if (!wil_has_other_active_ifaces(wil, ndev, false, true)) + wil6210_bus_request(wil, WIL_DEFAULT_BUS_REQUEST_KBPS); + + if (test_and_clear_bit(wil_vif_fwconnected, vif->status)) { + atomic_dec(&wil->connected_vifs); + cfg80211_disconnected(ndev, reason_code, + NULL, 0, + vif->locally_generated_disc, + GFP_KERNEL); + vif->locally_generated_disc = false; + } else if (test_bit(wil_vif_fwconnecting, vif->status)) { + cfg80211_connect_result(ndev, bssid, NULL, 0, NULL, 0, + WLAN_STATUS_UNSPECIFIED_FAILURE, + GFP_KERNEL); + vif->bss = NULL; + } + clear_bit(wil_vif_fwconnecting, vif->status); + clear_bit(wil_vif_ft_roam, vif->status); + vif->ptk_rekey_state = WIL_REKEY_IDLE; + + break; + case NL80211_IFTYPE_AP: + case NL80211_IFTYPE_P2P_GO: + if (!wil_vif_is_connected(wil, vif->mid)) { + wil_update_net_queues_bh(wil, vif, NULL, true); + if (test_and_clear_bit(wil_vif_fwconnected, + vif->status)) + atomic_dec(&wil->connected_vifs); + } else { + wil_update_net_queues_bh(wil, vif, NULL, false); + } + break; + default: + break; + } +} + +static int wil_disconnect_cid(struct wil6210_vif *vif, int cid, + u16 reason_code) +{ + struct wil6210_priv *wil = vif_to_wil(vif); + struct wireless_dev *wdev = vif_to_wdev(vif); + struct wil_sta_info *sta = &wil->sta[cid]; + bool del_sta = false; + + might_sleep(); + wil_dbg_misc(wil, "disconnect_cid: CID %d, MID %d, status %d\n", + cid, sta->mid, sta->status); + + if (sta->status == wil_sta_unused) + return 0; + + if (vif->mid != sta->mid) { + wil_err(wil, "STA MID mismatch with VIF MID(%d)\n", vif->mid); + return -EINVAL; + } + + /* inform lower layers */ + if (wdev->iftype == NL80211_IFTYPE_AP && disable_ap_sme) + del_sta = true; + + /* disconnect by sending command disconnect/del_sta and wait + * synchronously for WMI_DISCONNECT_EVENTID event. + */ + return wmi_disconnect_sta(vif, sta->addr, reason_code, del_sta); +} + +static void _wil6210_disconnect(struct wil6210_vif *vif, const u8 *bssid, + u16 reason_code) +{ + struct wil6210_priv *wil; + struct net_device *ndev; + int cid = -ENOENT; + + if (unlikely(!vif)) + return; + + wil = vif_to_wil(vif); + ndev = vif_to_ndev(vif); + + might_sleep(); + wil_info(wil, "disconnect bssid=%pM, reason=%d\n", bssid, reason_code); + + /* Cases are: + * - disconnect single STA, still connected + * - disconnect single STA, already disconnected + * - disconnect all + * + * For "disconnect all", there are 3 options: + * - bssid == NULL + * - bssid is broadcast address (ff:ff:ff:ff:ff:ff) + * - bssid is our MAC address + */ + if (bssid && !is_broadcast_ether_addr(bssid) && + !ether_addr_equal_unaligned(ndev->dev_addr, bssid)) { + cid = wil_find_cid(wil, vif->mid, bssid); + wil_dbg_misc(wil, "Disconnect %pM, CID=%d, reason=%d\n", + bssid, cid, reason_code); + if (wil_cid_valid(wil, cid)) /* disconnect 1 peer */ + wil_disconnect_cid(vif, cid, reason_code); + } else { /* all */ + wil_dbg_misc(wil, "Disconnect all\n"); + for (cid = 0; cid < wil->max_assoc_sta; cid++) + wil_disconnect_cid(vif, cid, reason_code); + } + + /* call event handler manually after processing wmi_call, + * to avoid deadlock - disconnect event handler acquires + * wil->mutex while it is already held here + */ + _wil6210_disconnect_complete(vif, bssid, reason_code); +} + +void wil_disconnect_worker(struct work_struct *work) +{ + struct wil6210_vif *vif = container_of(work, + struct wil6210_vif, disconnect_worker); + struct wil6210_priv *wil = vif_to_wil(vif); + struct net_device *ndev = vif_to_ndev(vif); + int rc; + struct { + struct wmi_cmd_hdr wmi; + struct wmi_disconnect_event evt; + } __packed reply; + + if (test_bit(wil_vif_fwconnected, vif->status)) + /* connect succeeded after all */ + return; + + if (!test_bit(wil_vif_fwconnecting, vif->status)) + /* already disconnected */ + return; + + memset(&reply, 0, sizeof(reply)); + + rc = wmi_call(wil, WMI_DISCONNECT_CMDID, vif->mid, 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, vif, NULL, true); + netif_carrier_off(ndev); + cfg80211_connect_result(ndev, NULL, NULL, 0, NULL, 0, + WLAN_STATUS_UNSPECIFIED_FAILURE, GFP_KERNEL); + clear_bit(wil_vif_fwconnecting, vif->status); +} + +static int wil_wait_for_recovery(struct wil6210_priv *wil) +{ + if (wait_event_interruptible(wil->wq, wil->recovery_state != + fw_recovery_pending)) { + wil_err(wil, "Interrupt, canceling recovery\n"); + return -ERESTARTSYS; + } + if (wil->recovery_state != fw_recovery_running) { + wil_info(wil, "Recovery cancelled\n"); + return -EINTR; + } + wil_info(wil, "Proceed with recovery\n"); + return 0; +} + +void wil_set_recovery_state(struct wil6210_priv *wil, int state) +{ + 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 net_device *ndev = wil->main_ndev; + struct wireless_dev *wdev; + + wil_dbg_misc(wil, "fw error worker\n"); + + if (!ndev || !(ndev->flags & IFF_UP)) { + wil_info(wil, "No recovery - interface is down\n"); + return; + } + wdev = ndev->ieee80211_ptr; + + /* increment @recovery_count if less then WIL6210_FW_RECOVERY_TO + * passed since last recovery attempt + */ + if (time_is_after_jiffies(wil->last_fw_recovery + + WIL6210_FW_RECOVERY_TO)) + wil->recovery_count++; + else + wil->recovery_count = 1; /* fw was alive for a long time */ + + if (wil->recovery_count > WIL6210_FW_RECOVERY_RETRIES) { + wil_err(wil, "too many recovery attempts (%d), giving up\n", + wil->recovery_count); + return; + } + + 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); + /* Needs adaptation for multiple VIFs + * need to go over all VIFs and consider the appropriate + * recovery because each one can have different iftype. + */ + switch (wdev->iftype) { + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_P2P_CLIENT: + case NL80211_IFTYPE_MONITOR: + /* silent recovery, upper layers will see disconnect */ + __wil_down(wil); + __wil_up(wil); + break; + case NL80211_IFTYPE_AP: + case NL80211_IFTYPE_P2P_GO: + if (no_fw_recovery) /* upper layers do recovery */ + break; + /* silent recovery, upper layers will see disconnect */ + __wil_down(wil); + __wil_up(wil); + mutex_unlock(&wil->mutex); + wil_cfg80211_ap_recovery(wil); + 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_ring(struct wil6210_priv *wil) +{ + int i; + int min_ring_id = wil_get_min_tx_ring_id(wil); + + for (i = min_ring_id; i < WIL6210_MAX_TX_RINGS; i++) { + if (!wil->ring_tx[i].va) + return i; + } + return -EINVAL; +} + +int wil_ring_init_tx(struct wil6210_vif *vif, int cid) +{ + struct wil6210_priv *wil = vif_to_wil(vif); + int rc = -EINVAL, ringid; + + if (cid < 0) { + wil_err(wil, "No connection pending\n"); + goto out; + } + ringid = wil_find_free_ring(wil); + if (ringid < 0) { + wil_err(wil, "No free vring found\n"); + goto out; + } + + wil_dbg_wmi(wil, "Configure for connection CID %d MID %d ring %d\n", + cid, vif->mid, ringid); + + rc = wil->txrx_ops.ring_init_tx(vif, ringid, 1 << tx_ring_order, + cid, 0); + if (rc) + wil_err(wil, "init TX for CID %d MID %d vring %d failed\n", + cid, vif->mid, ringid); + +out: + return rc; +} + +int wil_bcast_init(struct wil6210_vif *vif) +{ + struct wil6210_priv *wil = vif_to_wil(vif); + int ri = vif->bcast_ring, rc; + + if (ri >= 0 && wil->ring_tx[ri].va) + return 0; + + ri = wil_find_free_ring(wil); + if (ri < 0) + return ri; + + vif->bcast_ring = ri; + rc = wil->txrx_ops.ring_init_bcast(vif, ri, 1 << bcast_ring_order); + if (rc) + vif->bcast_ring = -1; + + return rc; +} + +void wil_bcast_fini(struct wil6210_vif *vif) +{ + struct wil6210_priv *wil = vif_to_wil(vif); + int ri = vif->bcast_ring; + + if (ri < 0) + return; + + vif->bcast_ring = -1; + wil_ring_fini_tx(wil, ri); +} + +void wil_bcast_fini_all(struct wil6210_priv *wil) +{ + int i; + struct wil6210_vif *vif; + + for (i = 0; i < GET_MAX_VIFS(wil); i++) { + vif = wil->vifs[i]; + if (vif) + wil_bcast_fini(vif); + } +} + +int wil_priv_init(struct wil6210_priv *wil) +{ + uint i; + + 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); + wil->sta[i].mid = U8_MAX; + } + + for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) { + spin_lock_init(&wil->ring_tx_data[i].lock); + wil->ring2cid_tid[i][0] = WIL6210_MAX_CID; + } + + mutex_init(&wil->mutex); + mutex_init(&wil->vif_mutex); + mutex_init(&wil->wmi_mutex); + mutex_init(&wil->halp.lock); + + init_completion(&wil->wmi_ready); + init_completion(&wil->wmi_call); + init_completion(&wil->halp.comp); + + INIT_WORK(&wil->wmi_event_worker, wmi_event_worker); + INIT_WORK(&wil->fw_error_worker, wil_fw_error_worker); + + INIT_LIST_HEAD(&wil->pending_wmi_ev); + spin_lock_init(&wil->wmi_ev_lock); + spin_lock_init(&wil->net_queue_lock); + spin_lock_init(&wil->eap_lock); + + init_waitqueue_head(&wil->wq); + init_rwsem(&wil->mem_lock); + + wil->wmi_wq = create_singlethread_workqueue(WIL_NAME "_wmi"); + if (!wil->wmi_wq) + return -EAGAIN; + + wil->wq_service = create_singlethread_workqueue(WIL_NAME "_service"); + if (!wil->wq_service) + goto out_wmi_wq; + + wil->last_fw_recovery = jiffies; + wil->tx_interframe_timeout = WIL6210_ITR_TX_INTERFRAME_TIMEOUT_DEFAULT; + wil->rx_interframe_timeout = WIL6210_ITR_RX_INTERFRAME_TIMEOUT_DEFAULT; + wil->tx_max_burst_duration = WIL6210_ITR_TX_MAX_BURST_DURATION_DEFAULT; + wil->rx_max_burst_duration = WIL6210_ITR_RX_MAX_BURST_DURATION_DEFAULT; + + 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->ring_idle_trsh = 16; + + wil->reply_mid = U8_MAX; + wil->max_vifs = 1; + wil->max_assoc_sta = max_assoc_sta; + + /* edma configuration can be updated via debugfs before allocation */ + wil->num_rx_status_rings = WIL_DEFAULT_NUM_RX_STATUS_RINGS; + wil->tx_status_ring_order = WIL_TX_SRING_SIZE_ORDER_DEFAULT; + + /* Rx status ring size should be bigger than the number of RX buffers + * in order to prevent backpressure on the status ring, which may + * cause HW freeze. + */ + wil->rx_status_ring_order = WIL_RX_SRING_SIZE_ORDER_DEFAULT; + /* Number of RX buffer IDs should be bigger than the RX descriptor + * ring size as in HW reorder flow, the HW can consume additional + * buffers before releasing the previous ones. + */ + wil->rx_buff_id_count = WIL_RX_BUFF_ARR_SIZE_DEFAULT; + + wil->amsdu_en = true; + + return 0; + +out_wmi_wq: + destroy_workqueue(wil->wmi_wq); + + 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 + * @vif: virtual interface context + * @bssid: peer to disconnect, NULL to disconnect all + * @reason_code: Reason code for the Disassociation frame + * + * Disconnect and release associated resources. Issue WMI + * command(s) to trigger MAC disconnect. When command was issued + * successfully, call the wil6210_disconnect_complete function + * to handle the event synchronously + */ +void wil6210_disconnect(struct wil6210_vif *vif, const u8 *bssid, + u16 reason_code) +{ + struct wil6210_priv *wil = vif_to_wil(vif); + + wil_dbg_misc(wil, "disconnecting\n"); + + del_timer_sync(&vif->connect_timer); + _wil6210_disconnect(vif, bssid, reason_code); +} + +/** + * wil6210_disconnect_complete - handle disconnect event + * @vif: virtual interface context + * @bssid: peer to disconnect, NULL to disconnect all + * @reason_code: Reason code for the Disassociation frame + * + * Release associated resources and indicate upper layers the + * connection is terminated. + */ +void wil6210_disconnect_complete(struct wil6210_vif *vif, const u8 *bssid, + u16 reason_code) +{ + struct wil6210_priv *wil = vif_to_wil(vif); + + wil_dbg_misc(wil, "got disconnect\n"); + + del_timer_sync(&vif->connect_timer); + _wil6210_disconnect_complete(vif, bssid, reason_code); +} + +void wil_priv_deinit(struct wil6210_priv *wil) +{ + wil_dbg_misc(wil, "priv_deinit\n"); + + wil_set_recovery_state(wil, fw_recovery_idle); + cancel_work_sync(&wil->fw_error_worker); + wmi_event_flush(wil); + destroy_workqueue(wil->wq_service); + destroy_workqueue(wil->wmi_wq); + kfree(wil->brd_info); +} + +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 preparation\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) +{ + if (wil->hw_version >= HW_VER_TALYN_MB) { + wil_w(wil, RGF_USER_USER_CPU_0_TALYN_MB, + BIT_USER_USER_CPU_MAN_RST); + wil_w(wil, RGF_USER_MAC_CPU_0_TALYN_MB, + BIT_USER_MAC_CPU_MAN_RST); + } else { + wil_w(wil, RGF_USER_USER_CPU_0, BIT_USER_USER_CPU_MAN_RST); + wil_w(wil, RGF_USER_MAC_CPU_0, BIT_USER_MAC_CPU_MAN_RST); + } +} + +static inline void wil_release_cpu(struct wil6210_priv *wil) +{ + /* Start CPU */ + if (wil->hw_version >= HW_VER_TALYN_MB) + wil_w(wil, RGF_USER_USER_CPU_0_TALYN_MB, 1); + else + wil_w(wil, RGF_USER_USER_CPU_0, 1); +} + +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_wait_device_ready(struct wil6210_priv *wil, int no_flash) +{ + int delay = 0; + u32 x, x1 = 0; + + /* wait until device ready. */ + if (no_flash) { + msleep(PMU_READY_DELAY_MS); + + wil_dbg_misc(wil, "Reset completed\n"); + } 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_dbg_misc(wil, "Reset completed in %d ms\n", + delay * RST_DELAY); + } + + return 0; +} + +static int wil_wait_device_ready_talyn_mb(struct wil6210_priv *wil) +{ + u32 otp_hw; + u8 signature_status; + bool otp_signature_err; + bool hw_section_done; + u32 otp_qc_secured; + int delay = 0; + + /* Wait for OTP signature test to complete */ + usleep_range(2000, 2200); + + wil->boot_config = WIL_BOOT_ERR; + + /* Poll until OTP signature status is valid. + * In vanilla and development modes, when signature test is complete + * HW sets BIT_OTP_SIGNATURE_ERR_TALYN_MB. + * In production mode BIT_OTP_SIGNATURE_ERR_TALYN_MB remains 0, poll + * for signature status change to 2 or 3. + */ + do { + otp_hw = wil_r(wil, RGF_USER_OTP_HW_RD_MACHINE_1); + signature_status = WIL_GET_BITS(otp_hw, 8, 9); + otp_signature_err = otp_hw & BIT_OTP_SIGNATURE_ERR_TALYN_MB; + + if (otp_signature_err && + signature_status == WIL_SIG_STATUS_VANILLA) { + wil->boot_config = WIL_BOOT_VANILLA; + break; + } + if (otp_signature_err && + signature_status == WIL_SIG_STATUS_DEVELOPMENT) { + wil->boot_config = WIL_BOOT_DEVELOPMENT; + break; + } + if (!otp_signature_err && + signature_status == WIL_SIG_STATUS_PRODUCTION) { + wil->boot_config = WIL_BOOT_PRODUCTION; + break; + } + if (!otp_signature_err && + signature_status == + WIL_SIG_STATUS_CORRUPTED_PRODUCTION) { + /* Unrecognized OTP signature found. Possibly a + * corrupted production signature, access control + * is applied as in production mode, therefore + * do not fail + */ + wil->boot_config = WIL_BOOT_PRODUCTION; + break; + } + if (delay++ > OTP_HW_COUNT) + break; + + usleep_range(OTP_HW_DELAY, OTP_HW_DELAY + 10); + } while (!otp_signature_err && signature_status == 0); + + if (wil->boot_config == WIL_BOOT_ERR) { + wil_err(wil, + "invalid boot config, signature_status %d otp_signature_err %d\n", + signature_status, otp_signature_err); + return -ETIME; + } + + wil_dbg_misc(wil, + "signature test done in %d usec, otp_hw 0x%x, boot_config %d\n", + delay * OTP_HW_DELAY, otp_hw, wil->boot_config); + + if (wil->boot_config == WIL_BOOT_VANILLA) + /* Assuming not SPI boot (currently not supported) */ + goto out; + + hw_section_done = otp_hw & BIT_OTP_HW_SECTION_DONE_TALYN_MB; + delay = 0; + + while (!hw_section_done) { + msleep(RST_DELAY); + + otp_hw = wil_r(wil, RGF_USER_OTP_HW_RD_MACHINE_1); + hw_section_done = otp_hw & BIT_OTP_HW_SECTION_DONE_TALYN_MB; + + if (delay++ > RST_COUNT) { + wil_err(wil, "TO waiting for hw_section_done\n"); + return -ETIME; + } + } + + wil_dbg_misc(wil, "HW section done in %d ms\n", delay * RST_DELAY); + + otp_qc_secured = wil_r(wil, RGF_OTP_QC_SECURED); + wil->secured_boot = otp_qc_secured & BIT_BOOT_FROM_ROM ? 1 : 0; + wil_dbg_misc(wil, "secured boot is %sabled\n", + wil->secured_boot ? "en" : "dis"); + +out: + wil_dbg_misc(wil, "Reset completed\n"); + + return 0; +} + +static int wil_target_reset(struct wil6210_priv *wil, int no_flash) +{ + u32 x; + int rc; + + wil_dbg_misc(wil, "Resetting \"%s\"...\n", wil->hw_name); + + if (wil->hw_version < HW_VER_TALYN) { + /* Clear MAC link up */ + wil_s(wil, RGF_HP_CTRL, BIT(15)); + wil_s(wil, RGF_USER_CLKS_CTL_SW_RST_MASK_0, + BIT_HPAL_PERST_FROM_PAD); + wil_s(wil, RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_CAR_PERST_RST); + } + + wil_halt_cpu(wil); + + 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)); + + wil_s(wil, RGF_CAF_OSC_CONTROL, BIT_CAF_OSC_XTAL_EN); + /* XTAL stabilization should take about 3ms */ + usleep_range(5000, 7000); + x = wil_r(wil, RGF_CAF_PLL_LOCK_STATUS); + if (!(x & BIT_CAF_OSC_DIG_XTAL_STABLE)) { + wil_err(wil, "Xtal stabilization timeout\n" + "RGF_CAF_PLL_LOCK_STATUS = 0x%08x\n", x); + return -ETIME; + } + /* switch 10k to XTAL*/ + wil_c(wil, RGF_USER_SPARROW_M_4, BIT_SPARROW_M_4_SEL_SLEEP_OR_REF); + /* 40 MHz */ + wil_c(wil, RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_CAR_AHB_SW_SEL); + + wil_w(wil, RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x3ff81f); + wil_w(wil, RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0xf); + + if (wil->hw_version >= HW_VER_TALYN_MB) { + wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x7e000000); + wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0x0000003f); + wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0xc00000f0); + wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0xffe7fe00); + } else { + wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0xfe000000); + wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0x0000003f); + wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x000000f0); + wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0xffe7fe00); + } + + wil_w(wil, RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x0); + wil_w(wil, RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0x0); + + wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0); + wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0); + wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0); + wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0); + + wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x00000003); + /* reset A2 PCIE AHB */ + wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00008000); + + wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0); + + if (wil->hw_version == HW_VER_TALYN_MB) + rc = wil_wait_device_ready_talyn_mb(wil); + else + rc = wil_wait_device_ready(wil, no_flash); + if (rc) + return rc; + + wil_c(wil, RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_RST_PWGD); + + /* enable fix for HW bug related to the SA/DA swap in AP Rx */ + 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 (wil->hw_version < HW_VER_TALYN_MB && 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); + } + + 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->max_sched_scan_reqs = 1; + 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 (test_bit(WMI_FW_CAPABILITY_TX_REQ_EXT, wil->fw_capabilities)) + wiphy->flags |= WIPHY_FLAG_OFFCHAN_TX; + + 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; + + if (wil->n_msi == 3) + features |= BIT(WIL_PLATFORM_FEATURE_TRIPLE_MSI); + + wil->platform_ops.set_features(wil->platform_handle, features); + } + + if (test_bit(WMI_FW_CAPABILITY_BACK_WIN_SIZE_64, + wil->fw_capabilities)) { + wil->max_agg_wsize = WIL_MAX_AGG_WSIZE_64; + wil->max_ampdu_size = WIL_MAX_AMPDU_SIZE_128; + } else { + wil->max_agg_wsize = WIL_MAX_AGG_WSIZE; + wil->max_ampdu_size = WIL_MAX_AMPDU_SIZE; + } + + update_supported_bands(wil); +} + +void wil_mbox_ring_le2cpus(struct wil6210_mbox_ring *r) +{ + le32_to_cpus(&r->base); + le16_to_cpus(&r->entry_size); + le16_to_cpus(&r->size); + le32_to_cpus(&r->tail); + le32_to_cpus(&r->head); +} + +/* construct actual board file name to use */ +void wil_get_board_file(struct wil6210_priv *wil, char *buf, size_t len) +{ + const char *board_file; + const char *wil_talyn_fw_name = ftm_mode ? WIL_FW_NAME_FTM_TALYN : + WIL_FW_NAME_TALYN; + + if (wil->board_file) { + board_file = wil->board_file; + } else { + /* If specific FW file is used for Talyn, + * use specific board file + */ + if (strcmp(wil->wil_fw_name, wil_talyn_fw_name) == 0) + board_file = WIL_BRD_NAME_TALYN; + else + board_file = WIL_BOARD_FILE_NAME; + } + + strscpy(buf, board_file, len); +} + +static int wil_get_bl_info(struct wil6210_priv *wil) +{ + struct net_device *ndev = wil->main_ndev; + struct wiphy *wiphy = wil_to_wiphy(wil); + union { + struct bl_dedicated_registers_v0 bl0; + struct bl_dedicated_registers_v1 bl1; + } bl; + u32 bl_ver; + u8 *mac; + u16 rf_status; + + wil_memcpy_fromio_32(&bl, wil->csr + HOSTADDR(RGF_USER_BL), + sizeof(bl)); + bl_ver = le32_to_cpu(bl.bl0.boot_loader_struct_version); + mac = bl.bl0.mac_address; + + if (bl_ver == 0) { + le32_to_cpus(&bl.bl0.rf_type); + le32_to_cpus(&bl.bl0.baseband_type); + rf_status = 0; /* actually, unknown */ + wil_info(wil, + "Boot Loader struct v%d: MAC = %pM RF = 0x%08x bband = 0x%08x\n", + bl_ver, mac, + bl.bl0.rf_type, bl.bl0.baseband_type); + wil_info(wil, "Boot Loader build unknown for struct v0\n"); + } else { + le16_to_cpus(&bl.bl1.rf_type); + rf_status = le16_to_cpu(bl.bl1.rf_status); + le32_to_cpus(&bl.bl1.baseband_type); + le16_to_cpus(&bl.bl1.bl_version_subminor); + le16_to_cpus(&bl.bl1.bl_version_build); + wil_info(wil, + "Boot Loader struct v%d: MAC = %pM RF = 0x%04x (status 0x%04x) bband = 0x%08x\n", + bl_ver, mac, + bl.bl1.rf_type, rf_status, + bl.bl1.baseband_type); + wil_info(wil, "Boot Loader build %d.%d.%d.%d\n", + bl.bl1.bl_version_major, bl.bl1.bl_version_minor, + bl.bl1.bl_version_subminor, bl.bl1.bl_version_build); + } + + if (!is_valid_ether_addr(mac)) { + wil_err(wil, "BL: 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)) + eth_hw_addr_set(ndev, mac); + + if (rf_status) {/* bad RF cable? */ + wil_err(wil, "RF communication error 0x%04x", + rf_status); + return -EAGAIN; + } + + return 0; +} + +static void wil_bl_crash_info(struct wil6210_priv *wil, bool is_err) +{ + u32 bl_assert_code, bl_assert_blink, bl_magic_number; + u32 bl_ver = wil_r(wil, RGF_USER_BL + + offsetof(struct bl_dedicated_registers_v0, + boot_loader_struct_version)); + + if (bl_ver < 2) + return; + + bl_assert_code = wil_r(wil, RGF_USER_BL + + offsetof(struct bl_dedicated_registers_v1, + bl_assert_code)); + bl_assert_blink = wil_r(wil, RGF_USER_BL + + offsetof(struct bl_dedicated_registers_v1, + bl_assert_blink)); + bl_magic_number = wil_r(wil, RGF_USER_BL + + offsetof(struct bl_dedicated_registers_v1, + bl_magic_number)); + + if (is_err) { + wil_err(wil, + "BL assert code 0x%08x blink 0x%08x magic 0x%08x\n", + bl_assert_code, bl_assert_blink, bl_magic_number); + } else { + wil_dbg_misc(wil, + "BL assert code 0x%08x blink 0x%08x magic 0x%08x\n", + bl_assert_code, bl_assert_blink, bl_magic_number); + } +} + +static int wil_get_otp_info(struct wil6210_priv *wil) +{ + struct net_device *ndev = wil->main_ndev; + struct wiphy *wiphy = wil_to_wiphy(wil); + u8 mac[8]; + int mac_addr; + + /* OEM MAC has precedence */ + mac_addr = RGF_OTP_OEM_MAC; + wil_memcpy_fromio_32(mac, wil->csr + HOSTADDR(mac_addr), sizeof(mac)); + + if (is_valid_ether_addr(mac)) { + wil_info(wil, "using OEM MAC %pM\n", mac); + } else { + if (wil->hw_version >= HW_VER_TALYN_MB) + mac_addr = RGF_OTP_MAC_TALYN_MB; + else + mac_addr = RGF_OTP_MAC; + + wil_memcpy_fromio_32(mac, wil->csr + HOSTADDR(mac_addr), + 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)) + eth_hw_addr_set(ndev, mac); + + return 0; +} + +static int wil_wait_for_fw_ready(struct wil6210_priv *wil) +{ + ulong to = msecs_to_jiffies(2000); + ulong left = wait_for_completion_timeout(&wil->wmi_ready, to); + + if (0 == left) { + wil_err(wil, "Firmware not ready\n"); + return -ETIME; + } else { + wil_info(wil, "FW ready after %d ms. HW version 0x%08x\n", + jiffies_to_msecs(to-left), wil->hw_version); + } + return 0; +} + +void wil_abort_scan(struct wil6210_vif *vif, bool sync) +{ + struct wil6210_priv *wil = vif_to_wil(vif); + int rc; + struct cfg80211_scan_info info = { + .aborted = true, + }; + + lockdep_assert_held(&wil->vif_mutex); + + if (!vif->scan_request) + return; + + wil_dbg_misc(wil, "Abort scan_request 0x%p\n", vif->scan_request); + del_timer_sync(&vif->scan_timer); + mutex_unlock(&wil->vif_mutex); + rc = wmi_abort_scan(vif); + if (!rc && sync) + wait_event_interruptible_timeout(wil->wq, !vif->scan_request, + msecs_to_jiffies( + WAIT_FOR_SCAN_ABORT_MS)); + + mutex_lock(&wil->vif_mutex); + if (vif->scan_request) { + cfg80211_scan_done(vif->scan_request, &info); + vif->scan_request = NULL; + } +} + +void wil_abort_scan_all_vifs(struct wil6210_priv *wil, bool sync) +{ + int i; + + lockdep_assert_held(&wil->vif_mutex); + + for (i = 0; i < GET_MAX_VIFS(wil); i++) { + struct wil6210_vif *vif = wil->vifs[i]; + + if (vif) + wil_abort_scan(vif, sync); + } +} + +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) +{ + wil_clear_fw_log_addr(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 */ + if (wil->hw_version < HW_VER_TALYN_MB) { + 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) + * In Talyn-MB host cannot access this register due to + * access control, hence PAL_UNIT_ICR is cleared by the FW + */ + if (wil->hw_version < HW_VER_TALYN_MB) + 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); + } +} + +static int wil_restore_vifs(struct wil6210_priv *wil) +{ + struct wil6210_vif *vif; + struct net_device *ndev; + struct wireless_dev *wdev; + int i, rc; + + for (i = 0; i < GET_MAX_VIFS(wil); i++) { + vif = wil->vifs[i]; + if (!vif) + continue; + vif->ap_isolate = 0; + if (vif->mid) { + ndev = vif_to_ndev(vif); + wdev = vif_to_wdev(vif); + rc = wmi_port_allocate(wil, vif->mid, ndev->dev_addr, + wdev->iftype); + if (rc) { + wil_err(wil, "fail to restore VIF %d type %d, rc %d\n", + i, wdev->iftype, rc); + return rc; + } + } + } + + return 0; +} + +/* + * Clear FW and ucode log start addr to indicate FW log is not ready. The host + * driver clears the addresses before FW starts and FW initializes the address + * when it is ready to send logs. + */ +void wil_clear_fw_log_addr(struct wil6210_priv *wil) +{ + /* FW log addr */ + wil_w(wil, RGF_USER_USAGE_1, 0); + /* ucode log addr */ + wil_w(wil, RGF_USER_USAGE_2, 0); + wil_dbg_misc(wil, "Cleared FW and ucode log address"); +} + +/* + * We reset all the structures, and we reset the UMAC. + * After calling this routine, you're expected to reload + * the firmware. + */ +int wil_reset(struct wil6210_priv *wil, bool load_fw) +{ + int rc, i; + unsigned long status_flags = BIT(wil_status_resetting); + int no_flash; + struct wil6210_vif *vif; + + wil_dbg_misc(wil, "reset\n"); + + WARN_ON(!mutex_is_locked(&wil->mutex)); + WARN_ON(test_bit(wil_status_napi_en, wil->status)); + + if (debug_fw) { + static const u8 mac[ETH_ALEN] = { + 0x00, 0xde, 0xad, 0x12, 0x34, 0x56, + }; + struct net_device *ndev = wil->main_ndev; + + ether_addr_copy(ndev->perm_addr, mac); + eth_hw_addr_set(ndev, ndev->perm_addr); + return 0; + } + + if (wil->hw_version == HW_VER_UNKNOWN) + return -ENODEV; + + if (test_bit(WIL_PLATFORM_CAPA_T_PWR_ON_0, wil->platform_capa) && + wil->hw_version < HW_VER_TALYN_MB) { + 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); + mutex_lock(&wil->vif_mutex); + wil_abort_scan_all_vifs(wil, false); + mutex_unlock(&wil->vif_mutex); + + for (i = 0; i < GET_MAX_VIFS(wil); i++) { + vif = wil->vifs[i]; + if (vif) { + cancel_work_sync(&vif->disconnect_worker); + wil6210_disconnect(vif, NULL, + WLAN_REASON_DEAUTH_LEAVING); + vif->ptk_rekey_state = WIL_REKEY_IDLE; + } + } + wil_bcast_fini_all(wil); + + /* Disable device led before reset*/ + wmi_led_cfg(wil, false); + + down_write(&wil->mem_lock); + + /* 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); + + wmi_event_flush(wil); + + flush_workqueue(wil->wq_service); + flush_workqueue(wil->wmi_wq); + + 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->txrx_ops.rx_fini(wil); + wil->txrx_ops.tx_fini(wil); + if (rc) { + if (!no_flash) + wil_bl_crash_info(wil, true); + goto out; + } + + 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) + goto out; + + wil_set_oob_mode(wil, oob_mode); + if (load_fw) { + char board_file[WIL_BOARD_FILE_MAX_NAMELEN]; + + if (wil->secured_boot) { + wil_err(wil, "secured boot is not supported\n"); + up_write(&wil->mem_lock); + return -ENOTSUPP; + } + + board_file[0] = '\0'; + wil_get_board_file(wil, board_file, sizeof(board_file)); + wil_info(wil, "Use firmware <%s> + board <%s>\n", + wil->wil_fw_name, board_file); + + 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->wil_fw_name, true); + if (rc) + goto out; + if (wil->num_of_brd_entries) + rc = wil_request_board(wil, board_file); + else + rc = wil_request_firmware(wil, board_file, true); + if (rc) + goto out; + + wil_pre_fw_config(wil); + wil_release_cpu(wil); + } + + /* init after reset */ + reinit_completion(&wil->wmi_ready); + reinit_completion(&wil->wmi_call); + reinit_completion(&wil->halp.comp); + + clear_bit(wil_status_resetting, wil->status); + + up_write(&wil->mem_lock); + + if (load_fw) { + wil_unmask_irq(wil); + + /* we just started MAC, wait for FW ready */ + rc = wil_wait_for_fw_ready(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->txrx_ops.configure_interrupt_moderation(wil); + + /* Enable OFU rdy valid bug fix, to prevent hang in oful34_rx + * while there is back-pressure from Host during RX + */ + if (wil->hw_version >= HW_VER_TALYN_MB) + wil_s(wil, RGF_DMA_MISC_CTL, + BIT_OFUL34_RDY_VALID_BUG_FIX_EN); + + rc = wil_restore_vifs(wil); + if (rc) { + wil_err(wil, "failed to restore vifs, 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: + up_write(&wil->mem_lock); + clear_bit(wil_status_resetting, wil->status); + return rc; +} + +void wil_fw_error_recovery(struct wil6210_priv *wil) +{ + wil_dbg_misc(wil, "starting fw error recovery\n"); + + if (test_bit(wil_status_resetting, wil->status)) { + wil_info(wil, "Reset already in progress\n"); + return; + } + + wil->recovery_state = fw_recovery_pending; + schedule_work(&wil->fw_error_worker); +} + +int __wil_up(struct wil6210_priv *wil) +{ + struct net_device *ndev = wil->main_ndev; + struct wireless_dev *wdev = ndev->ieee80211_ptr; + int rc; + + WARN_ON(!mutex_is_locked(&wil->mutex)); + + rc = wil_reset(wil, true); + if (rc) + return rc; + + /* Rx RING. After MAC and beacon */ + if (rx_ring_order == 0) + rx_ring_order = wil->hw_version < HW_VER_TALYN_MB ? + WIL_RX_RING_SIZE_ORDER_DEFAULT : + WIL_RX_RING_SIZE_ORDER_TALYN_DEFAULT; + + rc = wil->txrx_ops.rx_init(wil, rx_ring_order); + if (rc) + return rc; + + rc = wil->txrx_ops.tx_init(wil); + if (rc) + return rc; + + switch (wdev->iftype) { + case NL80211_IFTYPE_STATION: + wil_dbg_misc(wil, "type: STATION\n"); + ndev->type = ARPHRD_ETHER; + break; + case NL80211_IFTYPE_AP: + wil_dbg_misc(wil, "type: AP\n"); + ndev->type = ARPHRD_ETHER; + break; + case NL80211_IFTYPE_P2P_CLIENT: + wil_dbg_misc(wil, "type: P2P_CLIENT\n"); + ndev->type = ARPHRD_ETHER; + break; + case NL80211_IFTYPE_P2P_GO: + wil_dbg_misc(wil, "type: P2P_GO\n"); + ndev->type = ARPHRD_ETHER; + break; + case NL80211_IFTYPE_MONITOR: + wil_dbg_misc(wil, "type: Monitor\n"); + ndev->type = ARPHRD_IEEE80211_RADIOTAP; + /* ARPHRD_IEEE80211 or ARPHRD_IEEE80211_RADIOTAP ? */ + break; + default: + return -EOPNOTSUPP; + } + + /* MAC address - pre-requisite for other commands */ + wmi_set_mac_address(wil, ndev->dev_addr); + + wil_dbg_misc(wil, "NAPI enable\n"); + napi_enable(&wil->napi_rx); + napi_enable(&wil->napi_tx); + set_bit(wil_status_napi_en, wil->status); + + wil6210_bus_request(wil, WIL_DEFAULT_BUS_REQUEST_KBPS); + + return 0; +} + +int wil_up(struct wil6210_priv *wil) +{ + int rc; + + wil_dbg_misc(wil, "up\n"); + + mutex_lock(&wil->mutex); + rc = __wil_up(wil); + mutex_unlock(&wil->mutex); + + return rc; +} + +int __wil_down(struct wil6210_priv *wil) +{ + int rc; + WARN_ON(!mutex_is_locked(&wil->mutex)); + + 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)) { + napi_disable(&wil->napi_rx); + napi_disable(&wil->napi_tx); + wil_dbg_misc(wil, "NAPI disable\n"); + } + wil_enable_irq(wil); + + mutex_lock(&wil->vif_mutex); + wil_p2p_stop_radio_operations(wil); + wil_abort_scan_all_vifs(wil, false); + mutex_unlock(&wil->vif_mutex); + + rc = wil_reset(wil, false); + + return rc; +} + +int wil_down(struct wil6210_priv *wil) +{ + int rc; + + wil_dbg_misc(wil, "down\n"); + + wil_set_recovery_state(wil, fw_recovery_idle); + mutex_lock(&wil->mutex); + rc = __wil_down(wil); + mutex_unlock(&wil->mutex); + + return rc; +} + +int wil_find_cid(struct wil6210_priv *wil, u8 mid, const u8 *mac) +{ + int i; + int rc = -ENOENT; + + for (i = 0; i < wil->max_assoc_sta; i++) { + if (wil->sta[i].mid == mid && + wil->sta[i].status != wil_sta_unused && + ether_addr_equal(wil->sta[i].addr, mac)) { + rc = i; + break; + } + } + + 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); + + if (wil->hw_version >= HW_VER_TALYN_MB) + return; + + 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); + /* mark to IRQ context to handle HALP ICR */ + wil->halp.handle_icr = true; + 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 */ + wil->halp.handle_icr = false; + 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) +{ + if (wil->hw_version >= HW_VER_TALYN_MB) + return; + + 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); +} + +void wil_init_txrx_ops(struct wil6210_priv *wil) +{ + if (wil->use_enhanced_dma_hw) + wil_init_txrx_ops_edma(wil); + else + wil_init_txrx_ops_legacy_dma(wil); +} |