| /* |
| * Copyright (c) 2012-2017 The Linux Foundation. All rights reserved. |
| * |
| * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| * |
| * |
| * Permission to use, copy, modify, and/or distribute this software for |
| * any purpose with or without fee is hereby granted, provided that the |
| * above copyright notice and this permission notice appear in all |
| * copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| * PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| /* |
| * This file was originally distributed by Qualcomm Atheros, Inc. |
| * under proprietary terms before Copyright ownership was assigned |
| * to the Linux Foundation. |
| */ |
| |
| /** |
| * DOC: wlan_hdd_power.c |
| * |
| * WLAN power management functions |
| * |
| */ |
| |
| /* Include files */ |
| |
| #include <linux/pm.h> |
| #include <linux/wait.h> |
| #include <linux/cpu.h> |
| #include <wlan_hdd_includes.h> |
| #if defined(WLAN_OPEN_SOURCE) && defined(CONFIG_HAS_WAKELOCK) |
| #include <linux/wakelock.h> |
| #endif |
| #include "qdf_types.h" |
| #include "sme_api.h" |
| #include <cds_api.h> |
| #include <cds_sched.h> |
| #include <mac_init_api.h> |
| #include <wlan_qct_sys.h> |
| #include <wlan_hdd_main.h> |
| #include <wlan_hdd_assoc.h> |
| #include <wlan_nlink_srv.h> |
| #include <wlan_hdd_misc.h> |
| #include <wlan_hdd_power.h> |
| #include <wlan_hdd_host_offload.h> |
| #include <dbglog_host.h> |
| #include <wlan_hdd_trace.h> |
| #include <wlan_hdd_p2p.h> |
| |
| #include <linux/semaphore.h> |
| #include <wlan_hdd_hostapd.h> |
| #include "cfg_api.h" |
| |
| #include <linux/inetdevice.h> |
| #include <wlan_hdd_cfg.h> |
| #include <wlan_hdd_scan.h> |
| #include <wlan_hdd_cfg80211.h> |
| #include <net/addrconf.h> |
| #include <wlan_hdd_ipa.h> |
| #include <wlan_hdd_lpass.h> |
| |
| #include <wma_types.h> |
| #include <ol_txrx_osif_api.h> |
| #include "hif.h" |
| #include "sme_power_save_api.h" |
| #include "wlan_policy_mgr_api.h" |
| #include "cdp_txrx_flow_ctrl_v2.h" |
| #include "pld_common.h" |
| #include "wlan_hdd_driver_ops.h" |
| #include <wlan_logging_sock_svc.h> |
| #include "scheduler_api.h" |
| #include "cds_utils.h" |
| |
| /* Preprocessor definitions and constants */ |
| #ifdef QCA_WIFI_NAPIER_EMULATION |
| #define HDD_SSR_BRING_UP_TIME 3000000 |
| #else |
| #define HDD_SSR_BRING_UP_TIME 30000 |
| #endif |
| #define HDD_WAKE_LOCK_RESUME_DURATION 1000 |
| |
| /* Type declarations */ |
| |
| #ifdef FEATURE_WLAN_DIAG_SUPPORT |
| /** |
| * hdd_wlan_suspend_resume_event()- send suspend/resume state |
| * @state: suspend/resume state |
| * |
| * This Function send send suspend resume state diag event |
| * |
| * Return: void. |
| */ |
| void hdd_wlan_suspend_resume_event(uint8_t state) |
| { |
| WLAN_HOST_DIAG_EVENT_DEF(suspend_state, struct host_event_suspend); |
| qdf_mem_zero(&suspend_state, sizeof(suspend_state)); |
| |
| suspend_state.state = state; |
| WLAN_HOST_DIAG_EVENT_REPORT(&suspend_state, EVENT_WLAN_SUSPEND_RESUME); |
| } |
| |
| /** |
| * hdd_wlan_offload_event()- send offloads event |
| * @type: offload type |
| * @state: enabled or disabled |
| * |
| * This Function send offloads enable/disable diag event |
| * |
| * Return: void. |
| */ |
| |
| void hdd_wlan_offload_event(uint8_t type, uint8_t state) |
| { |
| WLAN_HOST_DIAG_EVENT_DEF(host_offload, struct host_event_offload_req); |
| qdf_mem_zero(&host_offload, sizeof(host_offload)); |
| |
| host_offload.offload_type = type; |
| host_offload.state = state; |
| |
| WLAN_HOST_DIAG_EVENT_REPORT(&host_offload, EVENT_WLAN_OFFLOAD_REQ); |
| } |
| #endif |
| |
| /* Function and variables declarations */ |
| |
| extern struct notifier_block hdd_netdev_notifier; |
| |
| static struct timer_list ssr_timer; |
| static bool ssr_timer_started; |
| |
| /** |
| * hdd_enable_gtk_offload() - enable GTK offload |
| * @adapter: pointer to the adapter |
| * |
| * Central function to enable GTK offload. |
| * |
| * Return: nothing |
| */ |
| static void hdd_enable_gtk_offload(hdd_adapter_t *adapter) |
| { |
| QDF_STATUS status; |
| status = pmo_ucfg_enable_gtk_offload_in_fwr(adapter->hdd_vdev); |
| if (status != QDF_STATUS_SUCCESS) |
| hdd_info("Failed to enable gtk offload"); |
| } |
| |
| /** |
| * hdd_disable_gtk_offload() - disable GTK offload |
| * @pAdapter: pointer to the adapter |
| * |
| * Central function to disable GTK offload. |
| * |
| * Return: nothing |
| */ |
| static void hdd_disable_gtk_offload(hdd_adapter_t *adapter) |
| { |
| struct pmo_gtk_rsp_req gtk_rsp_request; |
| QDF_STATUS status; |
| |
| /* ensure to get gtk rsp first before disable it*/ |
| gtk_rsp_request.callback = |
| wlan_hdd_cfg80211_update_replay_counter_callback; |
| /* Passing as void* as PMO does not know legacy HDD adapter type */ |
| gtk_rsp_request.callback_context = |
| (void *)adapter; |
| status = pmo_ucfg_get_gtk_rsp(adapter->hdd_vdev, |
| >k_rsp_request); |
| if (status != QDF_STATUS_SUCCESS) { |
| hdd_err("Failed to send get gtk rsp status:%d", status); |
| return; |
| } |
| hdd_debug("send get_gtk_rsp successful"); |
| status = pmo_ucfg_disable_gtk_offload_in_fwr(adapter->hdd_vdev); |
| if (status != QDF_STATUS_SUCCESS) |
| hdd_info("Failed to disable gtk offload"); |
| |
| } |
| |
| |
| /** |
| * __wlan_hdd_ipv6_changed() - IPv6 notifier callback function |
| * @nb: notifier block that was registered with the kernel |
| * @data: (unused) generic data that was registered with the kernel |
| * @arg: (unused) generic argument that was registered with the kernel |
| * |
| * This is a callback function that is registered with the kernel via |
| * register_inet6addr_notifier() which allows the driver to be |
| * notified when there is an IPv6 address change. |
| * |
| * Return: NOTIFY_DONE to indicate we don't care what happens with |
| * other callbacks |
| */ |
| static int __wlan_hdd_ipv6_changed(struct notifier_block *nb, |
| unsigned long data, void *arg) |
| { |
| struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)arg; |
| struct net_device *ndev = ifa->idev->dev; |
| hdd_adapter_t *adapter = WLAN_HDD_GET_PRIV_PTR(ndev); |
| hdd_context_t *hdd_ctx; |
| int errno; |
| |
| ENTER_DEV(ndev); |
| |
| errno = hdd_validate_adapter(adapter); |
| if (errno) |
| goto exit; |
| |
| if (adapter->dev == ndev && |
| (adapter->device_mode == QDF_STA_MODE || |
| adapter->device_mode == QDF_P2P_CLIENT_MODE || |
| adapter->device_mode == QDF_NDI_MODE)) { |
| hdd_ctx = WLAN_HDD_GET_CTX(adapter); |
| errno = wlan_hdd_validate_context(hdd_ctx); |
| if (errno) |
| goto exit; |
| |
| hdd_debug("invoking sme_dhcp_done_ind"); |
| sme_dhcp_done_ind(hdd_ctx->hHal, adapter->sessionId); |
| schedule_work(&adapter->ipv6NotifierWorkQueue); |
| } |
| |
| exit: |
| EXIT(); |
| |
| return NOTIFY_DONE; |
| } |
| |
| /** |
| * wlan_hdd_ipv6_changed() - IPv6 change notifier callback |
| * @nb: pointer to notifier block |
| * @data: data |
| * @arg: arg |
| * |
| * This is the IPv6 notifier callback function gets invoked |
| * if any change in IP and then invoke the function @__wlan_hdd_ipv6_changed |
| * to reconfigure the offload parameters. |
| * |
| * Return: 0 on success, error number otherwise. |
| */ |
| int wlan_hdd_ipv6_changed(struct notifier_block *nb, |
| unsigned long data, void *arg) |
| { |
| int ret; |
| |
| cds_ssr_protect(__func__); |
| ret = __wlan_hdd_ipv6_changed(nb, data, arg); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |
| |
| /** |
| * hdd_fill_ipv6_uc_addr() - fill IPv6 unicast addresses |
| * @idev: pointer to net device |
| * @ipv6addr: destination array to fill IPv6 addresses |
| * @ipv6addr_type: IPv6 Address type |
| * @count: number of IPv6 addresses |
| * |
| * This is the IPv6 utility function to populate unicast addresses. |
| * |
| * Return: 0 on success, error number otherwise. |
| */ |
| static int hdd_fill_ipv6_uc_addr(struct inet6_dev *idev, |
| uint8_t ipv6_uc_addr[][SIR_MAC_IPV6_ADDR_LEN], |
| uint8_t *ipv6addr_type, uint32_t *count) |
| { |
| struct inet6_ifaddr *ifa; |
| struct list_head *p; |
| uint32_t scope; |
| |
| read_lock_bh(&idev->lock); |
| list_for_each(p, &idev->addr_list) { |
| if (*count >= PMO_MAC_NUM_TARGET_IPV6_NS_OFFLOAD_NA) { |
| read_unlock_bh(&idev->lock); |
| return -EINVAL; |
| } |
| ifa = list_entry(p, struct inet6_ifaddr, if_list); |
| if (ifa->flags & IFA_F_DADFAILED) |
| continue; |
| scope = ipv6_addr_src_scope(&ifa->addr); |
| switch (scope) { |
| case IPV6_ADDR_SCOPE_GLOBAL: |
| case IPV6_ADDR_SCOPE_LINKLOCAL: |
| qdf_mem_copy(ipv6_uc_addr[*count], &ifa->addr.s6_addr, |
| sizeof(ifa->addr.s6_addr)); |
| ipv6addr_type[*count] = PMO_IPV6_ADDR_UC_TYPE; |
| hdd_debug("Index %d scope = %s UC-Address: %pI6", |
| *count, (scope == IPV6_ADDR_SCOPE_LINKLOCAL) ? |
| "LINK LOCAL" : "GLOBAL", ipv6_uc_addr[*count]); |
| *count += 1; |
| break; |
| default: |
| hdd_warn("The Scope %d is not supported", scope); |
| } |
| } |
| |
| read_unlock_bh(&idev->lock); |
| return 0; |
| } |
| |
| /** |
| * hdd_fill_ipv6_ac_addr() - fill IPv6 anycast addresses |
| * @idev: pointer to net device |
| * @ipv6addr: destination array to fill IPv6 addresses |
| * @ipv6addr_type: IPv6 Address type |
| * @count: number of IPv6 addresses |
| * |
| * This is the IPv6 utility function to populate anycast addresses. |
| * |
| * Return: 0 on success, error number otherwise. |
| */ |
| static int hdd_fill_ipv6_ac_addr(struct inet6_dev *idev, |
| uint8_t ipv6_ac_addr[][SIR_MAC_IPV6_ADDR_LEN], |
| uint8_t *ipv6addr_type, uint32_t *count) |
| { |
| struct ifacaddr6 *ifaca; |
| uint32_t scope; |
| |
| read_lock_bh(&idev->lock); |
| for (ifaca = idev->ac_list; ifaca; ifaca = ifaca->aca_next) { |
| if (*count >= PMO_MAC_NUM_TARGET_IPV6_NS_OFFLOAD_NA) { |
| read_unlock_bh(&idev->lock); |
| return -EINVAL; |
| } |
| /* For anycast addr no DAD */ |
| scope = ipv6_addr_src_scope(&ifaca->aca_addr); |
| switch (scope) { |
| case IPV6_ADDR_SCOPE_GLOBAL: |
| case IPV6_ADDR_SCOPE_LINKLOCAL: |
| qdf_mem_copy(ipv6_ac_addr[*count], &ifaca->aca_addr, |
| sizeof(ifaca->aca_addr)); |
| ipv6addr_type[*count] = PMO_IPV6_ADDR_AC_TYPE; |
| hdd_debug("Index %d scope = %s AC-Address: %pI6", |
| *count, (scope == IPV6_ADDR_SCOPE_LINKLOCAL) ? |
| "LINK LOCAL" : "GLOBAL", ipv6_ac_addr[*count]); |
| *count += 1; |
| break; |
| default: |
| hdd_warn("The Scope %d is not supported", scope); |
| } |
| } |
| |
| read_unlock_bh(&idev->lock); |
| return 0; |
| } |
| |
| void hdd_enable_ns_offload(hdd_adapter_t *adapter, |
| enum pmo_offload_trigger trigger) |
| { |
| struct inet6_dev *in6_dev; |
| QDF_STATUS status; |
| hdd_context_t *hdd_ctx = WLAN_HDD_GET_CTX(adapter); |
| struct wlan_objmgr_psoc *psoc = hdd_ctx->hdd_psoc; |
| struct pmo_ns_req *ns_req = NULL; |
| int err; |
| |
| ENTER(); |
| if (!psoc) { |
| hdd_err("psoc is NULL"); |
| goto out; |
| } |
| |
| in6_dev = __in6_dev_get(adapter->dev); |
| if (NULL == in6_dev) { |
| hdd_err("IPv6 dev does not exist. Failed to request NSOffload"); |
| goto out; |
| } |
| |
| ns_req = qdf_mem_malloc(sizeof(*ns_req)); |
| if (!ns_req) { |
| hdd_err("fail to allocate ns_req"); |
| goto out; |
| } |
| |
| ns_req->psoc = psoc; |
| ns_req->vdev_id = adapter->sessionId; |
| ns_req->trigger = trigger; |
| ns_req->count = 0; |
| |
| /* Unicast Addresses */ |
| err = hdd_fill_ipv6_uc_addr(in6_dev, ns_req->ipv6_addr, |
| ns_req->ipv6_addr_type, &ns_req->count); |
| if (err) { |
| hdd_disable_ns_offload(adapter, trigger); |
| hdd_debug("Reached max supported addresses and not enabling " |
| "NS offload"); |
| goto out; |
| } |
| |
| /* Anycast Addresses */ |
| err = hdd_fill_ipv6_ac_addr(in6_dev, ns_req->ipv6_addr, |
| ns_req->ipv6_addr_type, &ns_req->count); |
| if (err) { |
| hdd_disable_ns_offload(adapter, trigger); |
| hdd_debug("Reached max supported addresses and not enabling " |
| "NS offload"); |
| goto out; |
| } |
| |
| /* cache ns request */ |
| status = pmo_ucfg_cache_ns_offload_req(ns_req); |
| if (status != QDF_STATUS_SUCCESS) { |
| hdd_err("Failed to cache ns request status: %d", status); |
| goto out; |
| } |
| |
| /* enable ns request */ |
| status = pmo_ucfg_enable_ns_offload_in_fwr(adapter->hdd_vdev, trigger); |
| if (status != QDF_STATUS_SUCCESS) |
| hdd_err("Failed to enable HostOffload feature with status: %d", |
| status); |
| else |
| hdd_wlan_offload_event(SIR_IPV6_NS_OFFLOAD, SIR_OFFLOAD_ENABLE); |
| out: |
| if (ns_req) |
| qdf_mem_free(ns_req); |
| EXIT(); |
| |
| } |
| |
| void hdd_disable_ns_offload(hdd_adapter_t *adapter, |
| enum pmo_offload_trigger trigger) |
| { |
| QDF_STATUS status; |
| |
| ENTER(); |
| status = pmo_ucfg_flush_ns_offload_req(adapter->hdd_vdev); |
| if (status != QDF_STATUS_SUCCESS) { |
| hdd_err("Failed to flush NS Offload"); |
| goto out; |
| } |
| |
| status = pmo_ucfg_disable_ns_offload_in_fwr(adapter->hdd_vdev, trigger); |
| if (status != QDF_STATUS_SUCCESS) |
| hdd_err("Failed to disable NS Offload"); |
| else |
| hdd_wlan_offload_event(SIR_IPV6_NS_OFFLOAD, |
| SIR_OFFLOAD_DISABLE); |
| out: |
| EXIT(); |
| |
| } |
| |
| /** |
| * __hdd_ipv6_notifier_work_queue() - IPv6 notification work function |
| * @work: registered work item |
| * |
| * This function performs the work initially trigged by a callback |
| * from the IPv6 netdev notifier. Since this means there has been a |
| * change in IPv6 state for the interface, the NS offload is |
| * reconfigured. |
| * |
| * Return: None |
| */ |
| static void __hdd_ipv6_notifier_work_queue(struct work_struct *work) |
| { |
| hdd_context_t *hdd_ctx; |
| hdd_adapter_t *adapter; |
| int errno; |
| |
| ENTER(); |
| |
| adapter = container_of(work, hdd_adapter_t, ipv6NotifierWorkQueue); |
| errno = hdd_validate_adapter(adapter); |
| if (errno) |
| goto exit; |
| |
| hdd_ctx = WLAN_HDD_GET_CTX(adapter); |
| errno = wlan_hdd_validate_context(hdd_ctx); |
| if (errno) |
| goto exit; |
| |
| hdd_enable_ns_offload(adapter, pmo_ipv6_change_notify); |
| |
| exit: |
| EXIT(); |
| } |
| |
| /** |
| * hdd_ipv6_notifier_work_queue() - IP V6 change notifier work handler |
| * @work: Pointer to work context |
| * |
| * Return: none |
| */ |
| void hdd_ipv6_notifier_work_queue(struct work_struct *work) |
| { |
| cds_ssr_protect(__func__); |
| __hdd_ipv6_notifier_work_queue(work); |
| cds_ssr_unprotect(__func__); |
| } |
| |
| void hdd_enable_host_offloads(hdd_adapter_t *adapter, |
| enum pmo_offload_trigger trigger) |
| { |
| ENTER(); |
| |
| if (!pmo_ucfg_is_vdev_supports_offload(adapter->hdd_vdev)) { |
| hdd_info("offload is not supported on this vdev opmode: %d", |
| adapter->device_mode); |
| goto out; |
| } |
| |
| if (!pmo_ucfg_is_vdev_connected(adapter->hdd_vdev)) { |
| hdd_info("vdev is not connected"); |
| goto out; |
| } |
| |
| hdd_info("enable offloads"); |
| hdd_enable_gtk_offload(adapter); |
| hdd_enable_arp_offload(adapter, trigger); |
| hdd_enable_ns_offload(adapter, trigger); |
| hdd_enable_mc_addr_filtering(adapter, trigger); |
| hdd_enable_non_arp_hw_broadcast_filter(adapter); |
| out: |
| EXIT(); |
| |
| } |
| |
| void hdd_disable_host_offloads(hdd_adapter_t *adapter, |
| enum pmo_offload_trigger trigger) |
| { |
| ENTER(); |
| |
| if (!pmo_ucfg_is_vdev_supports_offload(adapter->hdd_vdev)) { |
| hdd_info("offload is not supported on this vdev opmode: %d", |
| adapter->device_mode); |
| goto out; |
| } |
| |
| if (!pmo_ucfg_is_vdev_connected(adapter->hdd_vdev)) { |
| hdd_info("vdev is not connected"); |
| goto out; |
| } |
| |
| hdd_info("disable offloads"); |
| hdd_disable_gtk_offload(adapter); |
| hdd_disable_arp_offload(adapter, trigger); |
| hdd_disable_ns_offload(adapter, trigger); |
| hdd_disable_mc_addr_filtering(adapter, trigger); |
| hdd_disable_non_arp_hw_broadcast_filter(adapter); |
| out: |
| EXIT(); |
| |
| } |
| |
| /** |
| * hdd_lookup_ifaddr() - Lookup interface address data by name |
| * @adapter: the adapter whose name should be searched for |
| * |
| * return in_ifaddr pointer on success, NULL for failure |
| */ |
| static struct in_ifaddr *hdd_lookup_ifaddr(hdd_adapter_t *adapter) |
| { |
| struct in_ifaddr *ifa; |
| struct in_device *in_dev; |
| |
| if (!adapter) { |
| hdd_err("adapter is null"); |
| return NULL; |
| } |
| |
| in_dev = __in_dev_get_rtnl(adapter->dev); |
| if (!in_dev) { |
| hdd_err("Failed to get in_device"); |
| return NULL; |
| } |
| |
| /* lookup address data by interface name */ |
| for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) { |
| if (!strcmp(adapter->dev->name, ifa->ifa_label)) |
| return ifa; |
| } |
| |
| return NULL; |
| } |
| |
| /** |
| * hdd_populate_ipv4_addr() - Populates the adapter's IPv4 address |
| * @adapter: the adapter whose IPv4 address is desired |
| * @ipv4_addr: the address of the array to copy the IPv4 address into |
| * |
| * return: zero for success; non-zero for failure |
| */ |
| static int hdd_populate_ipv4_addr(hdd_adapter_t *adapter, uint8_t *ipv4_addr) |
| { |
| struct in_ifaddr *ifa; |
| int i; |
| |
| if (!adapter) { |
| hdd_err("adapter is null"); |
| return -EINVAL; |
| } |
| |
| if (!ipv4_addr) { |
| hdd_err("ipv4_addr is null"); |
| return -EINVAL; |
| } |
| |
| ifa = hdd_lookup_ifaddr(adapter); |
| if (!ifa || !ifa->ifa_local) { |
| hdd_err("ipv4 address not found"); |
| return -EINVAL; |
| } |
| |
| /* convert u32 to byte array */ |
| for (i = 0; i < 4; i++) |
| ipv4_addr[i] = (ifa->ifa_local >> i * 8) & 0xff; |
| |
| return 0; |
| } |
| |
| /** |
| * hdd_set_grat_arp_keepalive() - Enable grat APR keepalive |
| * @adapter: the HDD adapter to configure |
| * |
| * This configures gratuitous APR keepalive based on the adapter's current |
| * connection information, specifically IPv4 address and BSSID |
| * |
| * return: zero for success, non-zero for failure |
| */ |
| static int hdd_set_grat_arp_keepalive(hdd_adapter_t *adapter) |
| { |
| QDF_STATUS status; |
| int exit_code; |
| hdd_context_t *hdd_ctx; |
| hdd_station_ctx_t *sta_ctx; |
| tSirKeepAliveReq req = { |
| .packetType = SIR_KEEP_ALIVE_UNSOLICIT_ARP_RSP, |
| .dest_macaddr = QDF_MAC_ADDR_BROADCAST_INITIALIZER, |
| }; |
| |
| if (!adapter) { |
| hdd_err("adapter is null"); |
| return -EINVAL; |
| } |
| |
| hdd_ctx = WLAN_HDD_GET_CTX(adapter); |
| if (!hdd_ctx) { |
| hdd_err("hdd_ctx is null"); |
| return -EINVAL; |
| } |
| |
| sta_ctx = WLAN_HDD_GET_STATION_CTX_PTR(adapter); |
| if (!sta_ctx) { |
| hdd_err("sta_ctx is null"); |
| return -EINVAL; |
| } |
| |
| exit_code = hdd_populate_ipv4_addr(adapter, req.hostIpv4Addr); |
| if (exit_code) { |
| hdd_err("Failed to populate ipv4 address"); |
| return exit_code; |
| } |
| |
| /* according to RFC5227, sender/target ip address should be the same */ |
| qdf_mem_copy(&req.destIpv4Addr, &req.hostIpv4Addr, |
| sizeof(req.destIpv4Addr)); |
| |
| qdf_copy_macaddr(&req.bssid, &sta_ctx->conn_info.bssId); |
| req.timePeriod = hdd_ctx->config->infraStaKeepAlivePeriod; |
| req.sessionId = adapter->sessionId; |
| |
| hdd_debug("Setting gratuitous ARP keepalive; ipv4_addr:%u.%u.%u.%u", |
| req.hostIpv4Addr[0], req.hostIpv4Addr[1], |
| req.hostIpv4Addr[2], req.hostIpv4Addr[3]); |
| |
| status = sme_set_keep_alive(hdd_ctx->hHal, req.sessionId, &req); |
| if (QDF_IS_STATUS_ERROR(status)) { |
| hdd_err("Failed to set keepalive"); |
| return qdf_status_to_os_return(status); |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * __hdd_ipv4_notifier_work_queue() - IPv4 notification work function |
| * @work: registered work item |
| * |
| * This function performs the work initially trigged by a callback |
| * from the IPv4 netdev notifier. Since this means there has been a |
| * change in IPv4 state for the interface, the ARP offload is |
| * reconfigured. |
| * |
| * Return: None |
| */ |
| static void __hdd_ipv4_notifier_work_queue(struct work_struct *work) |
| { |
| hdd_context_t *hdd_ctx; |
| hdd_adapter_t *adapter; |
| int errno; |
| |
| ENTER(); |
| |
| adapter = container_of(work, hdd_adapter_t, ipv4NotifierWorkQueue); |
| errno = hdd_validate_adapter(adapter); |
| if (errno) |
| goto exit; |
| |
| hdd_ctx = WLAN_HDD_GET_CTX(adapter); |
| errno = wlan_hdd_validate_context(hdd_ctx); |
| if (errno) |
| goto exit; |
| |
| hdd_enable_arp_offload(adapter, pmo_ipv4_change_notify); |
| |
| if (hdd_ctx->config->sta_keepalive_method == HDD_STA_KEEPALIVE_GRAT_ARP) |
| hdd_set_grat_arp_keepalive(adapter); |
| |
| exit: |
| EXIT(); |
| } |
| |
| /** |
| * hdd_ipv4_notifier_work_queue() - IP V4 change notifier work handler |
| * @work: Pointer to work context |
| * |
| * Return: none |
| */ |
| void hdd_ipv4_notifier_work_queue(struct work_struct *work) |
| { |
| cds_ssr_protect(__func__); |
| __hdd_ipv4_notifier_work_queue(work); |
| cds_ssr_unprotect(__func__); |
| } |
| |
| /** |
| * __wlan_hdd_ipv4_changed() - IPv4 notifier callback function |
| * @nb: notifier block that was registered with the kernel |
| * @data: (unused) generic data that was registered with the kernel |
| * @arg: (unused) generic argument that was registered with the kernel |
| * |
| * This is a callback function that is registered with the kernel via |
| * register_inetaddr_notifier() which allows the driver to be |
| * notified when there is an IPv4 address change. |
| * |
| * Return: NOTIFY_DONE to indicate we don't care what happens with |
| * other callbacks |
| */ |
| static int __wlan_hdd_ipv4_changed(struct notifier_block *nb, |
| unsigned long data, void *arg) |
| { |
| struct in_ifaddr *ifa = (struct in_ifaddr *)arg; |
| struct net_device *ndev = ifa->ifa_dev->dev; |
| hdd_adapter_t *adapter = WLAN_HDD_GET_PRIV_PTR(ndev); |
| hdd_context_t *hdd_ctx; |
| int errno; |
| |
| ENTER_DEV(ndev); |
| |
| errno = hdd_validate_adapter(adapter); |
| if (errno) |
| goto exit; |
| |
| if (adapter->dev == ndev && |
| (adapter->device_mode == QDF_STA_MODE || |
| adapter->device_mode == QDF_P2P_CLIENT_MODE || |
| adapter->device_mode == QDF_NDI_MODE)) { |
| |
| hdd_ctx = WLAN_HDD_GET_CTX(adapter); |
| errno = wlan_hdd_validate_context(hdd_ctx); |
| if (errno) |
| goto exit; |
| |
| hdd_debug("invoking sme_dhcp_done_ind"); |
| sme_dhcp_done_ind(hdd_ctx->hHal, adapter->sessionId); |
| |
| if (!hdd_ctx->config->fhostArpOffload) { |
| hdd_debug("Offload not enabled ARPOffload=%d", |
| hdd_ctx->config->fhostArpOffload); |
| goto exit; |
| } |
| |
| ifa = hdd_lookup_ifaddr(adapter); |
| if (ifa && ifa->ifa_local) |
| schedule_work(&adapter->ipv4NotifierWorkQueue); |
| } |
| |
| exit: |
| EXIT(); |
| |
| return NOTIFY_DONE; |
| } |
| |
| /** |
| * wlan_hdd_ipv4_changed() - IPv4 change notifier callback |
| * @nb: pointer to notifier block |
| * @data: data |
| * @arg: arg |
| * |
| * This is the IPv4 notifier callback function gets invoked |
| * if any change in IP and then invoke the function @__wlan_hdd_ipv4_changed |
| * to reconfigure the offload parameters. |
| * |
| * Return: 0 on success, error number otherwise. |
| */ |
| int wlan_hdd_ipv4_changed(struct notifier_block *nb, |
| unsigned long data, void *arg) |
| { |
| int ret; |
| |
| cds_ssr_protect(__func__); |
| ret = __wlan_hdd_ipv4_changed(nb, data, arg); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |
| |
| /** |
| * hdd_get_ipv4_local_interface() - get ipv4 local interafce from iface list |
| * @pAdapter: Adapter context for which ARP offload is to be configured |
| * |
| * Return: |
| * ifa - on successful operation, |
| * NULL - on failure of operation |
| */ |
| static struct in_ifaddr *hdd_get_ipv4_local_interface( |
| hdd_adapter_t *pAdapter) |
| { |
| struct in_ifaddr **ifap = NULL; |
| struct in_ifaddr *ifa = NULL; |
| struct in_device *in_dev; |
| |
| in_dev = __in_dev_get_rtnl(pAdapter->dev); |
| if (in_dev) { |
| for (ifap = &in_dev->ifa_list; (ifa = *ifap) != NULL; |
| ifap = &ifa->ifa_next) { |
| if (!strcmp(pAdapter->dev->name, ifa->ifa_label)) { |
| /* if match break */ |
| return ifa; |
| } |
| } |
| } |
| ifa = NULL; |
| |
| return ifa; |
| } |
| |
| void hdd_enable_arp_offload(hdd_adapter_t *adapter, |
| enum pmo_offload_trigger trigger) |
| { |
| hdd_context_t *hdd_ctx = WLAN_HDD_GET_CTX(adapter); |
| struct wlan_objmgr_psoc *psoc = hdd_ctx->hdd_psoc; |
| QDF_STATUS status; |
| struct pmo_arp_req *arp_req = NULL; |
| struct in_ifaddr *ifa = NULL; |
| |
| ENTER(); |
| arp_req = qdf_mem_malloc(sizeof(*arp_req)); |
| if (!arp_req) { |
| hdd_err("cannot allocate arp_req"); |
| goto out; |
| } |
| |
| arp_req->psoc = psoc; |
| arp_req->vdev_id = adapter->sessionId; |
| arp_req->trigger = trigger; |
| |
| ifa = hdd_get_ipv4_local_interface(adapter); |
| if (ifa && ifa->ifa_local) { |
| arp_req->ipv4_addr = (uint32_t)ifa->ifa_local; |
| status = pmo_ucfg_cache_arp_offload_req(arp_req); |
| if (status == QDF_STATUS_SUCCESS) { |
| status = pmo_ucfg_enable_arp_offload_in_fwr( |
| adapter->hdd_vdev, trigger); |
| if (status == QDF_STATUS_SUCCESS) |
| hdd_wlan_offload_event( |
| PMO_IPV4_ARP_REPLY_OFFLOAD, |
| PMO_OFFLOAD_ENABLE); |
| else |
| hdd_info("fail to enable arp offload in fwr"); |
| } else |
| hdd_info("fail to cache arp offload request"); |
| } else { |
| hdd_notice("IP Address is not assigned"); |
| status = QDF_STATUS_NOT_INITIALIZED; |
| } |
| out: |
| if (arp_req) |
| qdf_mem_free(arp_req); |
| EXIT(); |
| |
| } |
| |
| void hdd_disable_arp_offload(hdd_adapter_t *adapter, |
| enum pmo_offload_trigger trigger) |
| { |
| QDF_STATUS status; |
| |
| ENTER(); |
| status = pmo_ucfg_flush_arp_offload_req(adapter->hdd_vdev); |
| if (status != QDF_STATUS_SUCCESS) { |
| hdd_err("Failed to flush arp Offload"); |
| goto out; |
| } |
| |
| status = pmo_ucfg_disable_arp_offload_in_fwr(adapter->hdd_vdev, trigger); |
| if (status == QDF_STATUS_SUCCESS) |
| hdd_wlan_offload_event(PMO_IPV4_ARP_REPLY_OFFLOAD, |
| PMO_OFFLOAD_DISABLE); |
| else |
| hdd_info("fail to disable arp offload"); |
| out: |
| EXIT(); |
| } |
| |
| void hdd_enable_non_arp_hw_broadcast_filter(hdd_adapter_t *adapter) |
| { |
| QDF_STATUS status; |
| |
| ENTER(); |
| |
| status = pmo_ucfg_enable_non_arp_bcast_filter_in_fwr( |
| adapter->hdd_vdev); |
| |
| if (status != QDF_STATUS_SUCCESS) |
| hdd_info("Failed to enable broadcast filter"); |
| |
| EXIT(); |
| } |
| |
| void hdd_disable_non_arp_hw_broadcast_filter(hdd_adapter_t *adapter) |
| { |
| QDF_STATUS status; |
| |
| ENTER(); |
| |
| status = pmo_ucfg_disable_non_arp_bcast_filter_in_fwr( |
| adapter->hdd_vdev); |
| if (status != QDF_STATUS_SUCCESS) |
| hdd_info("Failed to disable broadcast filter"); |
| |
| EXIT(); |
| } |
| |
| void hdd_enable_mc_addr_filtering(hdd_adapter_t *adapter, |
| enum pmo_offload_trigger trigger) |
| { |
| hdd_context_t *hdd_ctx = (hdd_context_t *)adapter->pHddCtx; |
| QDF_STATUS status; |
| struct wlan_objmgr_psoc *psoc = hdd_ctx->hdd_psoc; |
| |
| ENTER(); |
| if (wlan_hdd_validate_context(hdd_ctx)) |
| goto out; |
| |
| status = pmo_ucfg_enable_mc_addr_filtering_in_fwr(psoc, |
| adapter->sessionId, trigger); |
| if (status != QDF_STATUS_SUCCESS) |
| hdd_info("failed to enable mc list status %d", status); |
| out: |
| EXIT(); |
| |
| } |
| |
| void hdd_disable_mc_addr_filtering(hdd_adapter_t *adapter, |
| enum pmo_offload_trigger trigger) |
| { |
| hdd_context_t *hdd_ctx = (hdd_context_t *)adapter->pHddCtx; |
| QDF_STATUS status = QDF_STATUS_SUCCESS; |
| struct wlan_objmgr_psoc *psoc = hdd_ctx->hdd_psoc; |
| |
| ENTER(); |
| if (wlan_hdd_validate_context(hdd_ctx)) |
| goto out; |
| |
| status = pmo_ucfg_disable_mc_addr_filtering_in_fwr(psoc, |
| adapter->sessionId, trigger); |
| if (status != QDF_STATUS_SUCCESS) |
| hdd_info("failed to disable mc list status %d", status); |
| out: |
| EXIT(); |
| |
| } |
| |
| int hdd_cache_mc_addr_list(struct pmo_mc_addr_list_params *mc_list_config) |
| { |
| QDF_STATUS status; |
| int ret = 0; |
| |
| ENTER(); |
| /* cache mc addr list */ |
| status = pmo_ucfg_cache_mc_addr_list(mc_list_config); |
| if (status != QDF_STATUS_SUCCESS) { |
| hdd_info("fail to cache mc list status %d", status); |
| ret = -EINVAL; |
| } |
| EXIT(); |
| |
| return ret; |
| } |
| |
| void hdd_disable_and_flush_mc_addr_list(hdd_adapter_t *adapter, |
| enum pmo_offload_trigger trigger) |
| { |
| hdd_context_t *hdd_ctx = (hdd_context_t *)adapter->pHddCtx; |
| struct wlan_objmgr_psoc *psoc = hdd_ctx->hdd_psoc; |
| QDF_STATUS status = QDF_STATUS_SUCCESS; |
| |
| ENTER(); |
| /* disable mc list first */ |
| status = pmo_ucfg_disable_mc_addr_filtering_in_fwr(psoc, |
| adapter->sessionId, trigger); |
| if (status != QDF_STATUS_SUCCESS) |
| hdd_info("fail to disable mc list"); |
| |
| /* flush mc list */ |
| status = pmo_ucfg_flush_mc_addr_list(psoc, adapter->sessionId); |
| if (status != QDF_STATUS_SUCCESS) |
| hdd_info("fail to flush mc list status %d", status); |
| EXIT(); |
| |
| return; |
| |
| } |
| |
| /** |
| * hdd_update_conn_state_mask(): record info needed by wma_suspend_req |
| * @adapter: adapter to get info from |
| * @conn_state_mask: mask of connection info |
| * |
| * currently only need to send connection info. |
| */ |
| static void |
| hdd_update_conn_state_mask(hdd_adapter_t *adapter, uint32_t *conn_state_mask) |
| { |
| |
| eConnectionState connState; |
| hdd_station_ctx_t *sta_ctx; |
| sta_ctx = WLAN_HDD_GET_STATION_CTX_PTR(adapter); |
| connState = sta_ctx->conn_info.connState; |
| |
| if (connState == eConnectionState_Associated || |
| connState == eConnectionState_IbssConnected) |
| *conn_state_mask |= (1 << adapter->sessionId); |
| } |
| |
| /** |
| * hdd_suspend_wlan() - Driver suspend function |
| * @callback: Callback function to invoke when driver is ready to suspend |
| * @callbackContext: Context to pass back to @callback function |
| * |
| * Return: 0 on success else error code. |
| */ |
| static int |
| hdd_suspend_wlan(void) |
| { |
| hdd_context_t *pHddCtx; |
| |
| QDF_STATUS status; |
| hdd_adapter_t *pAdapter = NULL; |
| hdd_adapter_list_node_t *pAdapterNode = NULL, *pNext = NULL; |
| uint32_t conn_state_mask = 0; |
| hdd_info("WLAN being suspended by OS"); |
| |
| pHddCtx = cds_get_context(QDF_MODULE_ID_HDD); |
| if (!pHddCtx) { |
| hdd_err("HDD context is Null"); |
| return -EINVAL; |
| } |
| |
| if (cds_is_driver_recovering()) { |
| hdd_info("Recovery in Progress. State: 0x%x Ignore suspend!!!", |
| cds_get_driver_state()); |
| return -EINVAL; |
| } |
| |
| status = hdd_get_front_adapter(pHddCtx, &pAdapterNode); |
| while (NULL != pAdapterNode && QDF_STATUS_SUCCESS == status) { |
| pAdapter = pAdapterNode->pAdapter; |
| if (wlan_hdd_validate_session_id(pAdapter->sessionId)) { |
| hdd_err("invalid session id: %d", pAdapter->sessionId); |
| goto next_adapter; |
| } |
| |
| /* stop all TX queues before suspend */ |
| hdd_debug("Disabling queues"); |
| wlan_hdd_netif_queue_control(pAdapter, |
| WLAN_STOP_ALL_NETIF_QUEUE, |
| WLAN_CONTROL_PATH); |
| |
| /* Configure supported OffLoads */ |
| hdd_enable_host_offloads(pAdapter, pmo_apps_suspend); |
| hdd_update_conn_state_mask(pAdapter, &conn_state_mask); |
| next_adapter: |
| status = hdd_get_next_adapter(pHddCtx, pAdapterNode, &pNext); |
| pAdapterNode = pNext; |
| } |
| |
| status = pmo_ucfg_psoc_user_space_suspend_req(pHddCtx->hdd_psoc, |
| QDF_SYSTEM_SUSPEND); |
| if (status != QDF_STATUS_SUCCESS) |
| return -EAGAIN; |
| |
| pHddCtx->hdd_wlan_suspended = true; |
| hdd_wlan_suspend_resume_event(HDD_WLAN_EARLY_SUSPEND); |
| |
| return 0; |
| } |
| |
| /** |
| * hdd_resume_wlan() - Driver resume function |
| * |
| * Return: 0 on success else error code. |
| */ |
| static int hdd_resume_wlan(void) |
| { |
| hdd_context_t *pHddCtx; |
| hdd_adapter_t *pAdapter = NULL; |
| hdd_adapter_list_node_t *pAdapterNode = NULL, *pNext = NULL; |
| QDF_STATUS status; |
| |
| hdd_info("WLAN being resumed by OS"); |
| |
| pHddCtx = cds_get_context(QDF_MODULE_ID_HDD); |
| if (!pHddCtx) { |
| hdd_err("HDD context is Null"); |
| return -EINVAL; |
| } |
| |
| if (cds_is_driver_recovering()) { |
| hdd_info("Recovery in Progress. State: 0x%x Ignore resume!!!", |
| cds_get_driver_state()); |
| return -EINVAL; |
| } |
| |
| pHddCtx->hdd_wlan_suspended = false; |
| hdd_wlan_suspend_resume_event(HDD_WLAN_EARLY_RESUME); |
| |
| /*loop through all adapters. Concurrency */ |
| status = hdd_get_front_adapter(pHddCtx, &pAdapterNode); |
| |
| while (NULL != pAdapterNode && QDF_STATUS_SUCCESS == status) { |
| pAdapter = pAdapterNode->pAdapter; |
| if (wlan_hdd_validate_session_id(pAdapter->sessionId)) { |
| hdd_err("invalid session id: %d", pAdapter->sessionId); |
| goto next_adapter; |
| } |
| /* Disable supported OffLoads */ |
| hdd_disable_host_offloads(pAdapter, pmo_apps_resume); |
| |
| /* wake the tx queues */ |
| hdd_info("Enabling queues"); |
| wlan_hdd_netif_queue_control(pAdapter, |
| WLAN_WAKE_ALL_NETIF_QUEUE, |
| WLAN_CONTROL_PATH); |
| |
| next_adapter: |
| status = hdd_get_next_adapter(pHddCtx, pAdapterNode, &pNext); |
| pAdapterNode = pNext; |
| } |
| hdd_ipa_resume(pHddCtx); |
| status = pmo_ucfg_psoc_user_space_resume_req(pHddCtx->hdd_psoc, |
| QDF_SYSTEM_SUSPEND); |
| if (status != QDF_STATUS_SUCCESS) |
| return -EAGAIN; |
| |
| return 0; |
| } |
| |
| /** |
| * DOC: SSR Timer |
| * |
| * When SSR is initiated, an SSR timer is started. Under normal |
| * circumstances SSR should complete amd the timer should be deleted |
| * before it fires. If the SSR timer does fire, it indicates SSR has |
| * taken too long, and our only recourse is to invoke the QDF_BUG() |
| * API which can allow a crashdump to be captured. |
| */ |
| |
| /** |
| * hdd_ssr_timer_init() - Initialize SSR Timer |
| * |
| * Return: None. |
| */ |
| static void hdd_ssr_timer_init(void) |
| { |
| init_timer(&ssr_timer); |
| } |
| |
| /** |
| * hdd_ssr_timer_del() - Delete SSR Timer |
| * |
| * Return: None. |
| */ |
| static void hdd_ssr_timer_del(void) |
| { |
| del_timer(&ssr_timer); |
| ssr_timer_started = false; |
| } |
| |
| /** |
| * hdd_ssr_timer_cb() - SSR Timer callback function |
| * @data: opaque data registered with timer infrastructure |
| * |
| * Return: None. |
| */ |
| static void hdd_ssr_timer_cb(unsigned long data) |
| { |
| hdd_info("HDD SSR timer expired!"); |
| QDF_BUG(0); |
| } |
| |
| /** |
| * hdd_ssr_timer_start() - Start SSR Timer |
| * @msec: Timer timeout value in milliseconds |
| * |
| * Return: None. |
| */ |
| static void hdd_ssr_timer_start(int msec) |
| { |
| if (ssr_timer_started) { |
| hdd_debug("Trying to start SSR timer when " "it's running!"); |
| } |
| ssr_timer.expires = jiffies + msecs_to_jiffies(msec); |
| ssr_timer.function = hdd_ssr_timer_cb; |
| add_timer(&ssr_timer); |
| ssr_timer_started = true; |
| } |
| |
| /** |
| * hdd_svc_fw_shutdown_ind() - API to send FW SHUTDOWN IND to Userspace |
| * |
| * @dev: Device Pointer |
| * |
| * Return: None |
| */ |
| void hdd_svc_fw_shutdown_ind(struct device *dev) |
| { |
| hdd_context_t *hdd_ctx; |
| v_CONTEXT_t g_context; |
| |
| g_context = cds_get_global_context(); |
| |
| if (!g_context) |
| return; |
| |
| hdd_ctx = cds_get_context(QDF_MODULE_ID_HDD); |
| |
| hdd_ctx ? wlan_hdd_send_svc_nlink_msg(hdd_ctx->radio_index, |
| WLAN_SVC_FW_SHUTDOWN_IND, |
| NULL, 0) : 0; |
| } |
| |
| /** |
| * hdd_ssr_restart_sap() - restart sap on SSR |
| * @hdd_ctx: hdd context |
| * |
| * Return: nothing |
| */ |
| static void hdd_ssr_restart_sap(hdd_context_t *hdd_ctx) |
| { |
| QDF_STATUS status; |
| hdd_adapter_list_node_t *adapter_node = NULL, *next = NULL; |
| hdd_adapter_t *adapter; |
| |
| ENTER(); |
| |
| status = hdd_get_front_adapter(hdd_ctx, &adapter_node); |
| while (NULL != adapter_node && QDF_STATUS_SUCCESS == status) { |
| adapter = adapter_node->pAdapter; |
| if (adapter && adapter->device_mode == QDF_SAP_MODE) { |
| if (test_bit(SOFTAP_INIT_DONE, &adapter->event_flags)) { |
| hdd_debug("Restart prev SAP session"); |
| wlan_hdd_start_sap(adapter, true); |
| } |
| } |
| status = hdd_get_next_adapter(hdd_ctx, adapter_node, &next); |
| adapter_node = next; |
| } |
| |
| EXIT(); |
| } |
| |
| /** |
| * hdd_wlan_shutdown() - HDD SSR shutdown function |
| * |
| * This function is called by the HIF to shutdown the driver during SSR. |
| * |
| * Return: QDF_STATUS_SUCCESS if the driver was shut down, |
| * or an error status otherwise |
| */ |
| QDF_STATUS hdd_wlan_shutdown(void) |
| { |
| v_CONTEXT_t p_cds_context = NULL; |
| hdd_context_t *pHddCtx; |
| p_cds_sched_context cds_sched_context = NULL; |
| QDF_STATUS qdf_status; |
| void *soc = cds_get_context(QDF_MODULE_ID_SOC); |
| |
| hdd_info("WLAN driver shutting down!"); |
| |
| /* If SSR never completes, then do kernel panic. */ |
| hdd_ssr_timer_init(); |
| hdd_ssr_timer_start(HDD_SSR_BRING_UP_TIME); |
| |
| /* Get the global CDS context. */ |
| p_cds_context = cds_get_global_context(); |
| if (!p_cds_context) { |
| hdd_err("Global CDS context is Null"); |
| return QDF_STATUS_E_FAILURE; |
| } |
| |
| /* Get the HDD context. */ |
| pHddCtx = cds_get_context(QDF_MODULE_ID_HDD); |
| if (!pHddCtx) { |
| hdd_err("HDD context is Null"); |
| return QDF_STATUS_E_FAILURE; |
| } |
| |
| policy_mgr_clear_concurrent_session_count(pHddCtx->hdd_psoc); |
| |
| hdd_debug("Invoking packetdump deregistration API"); |
| wlan_deregister_txrx_packetdump(); |
| wlan_cfg80211_cleanup_scan_queue(pHddCtx->hdd_pdev); |
| hdd_ipa_uc_ssr_deinit(); |
| hdd_reset_all_adapters(pHddCtx); |
| |
| /* Flush cached rx frame queue */ |
| if (soc) |
| cdp_flush_cache_rx_queue(soc); |
| |
| /* De-register the HDD callbacks */ |
| hdd_deregister_cb(pHddCtx); |
| |
| cds_sched_context = get_cds_sched_ctxt(); |
| |
| if (pHddCtx->is_scheduler_suspended) { |
| scheduler_resume(); |
| pHddCtx->is_scheduler_suspended = false; |
| } |
| #ifdef QCA_CONFIG_SMP |
| if (true == pHddCtx->is_ol_rx_thread_suspended) { |
| complete(&cds_sched_context->ol_resume_rx_event); |
| pHddCtx->is_ol_rx_thread_suspended = false; |
| } |
| #endif |
| |
| qdf_status = cds_sched_close(p_cds_context); |
| if (!QDF_IS_STATUS_SUCCESS(qdf_status)) { |
| hdd_err("Failed to close CDS Scheduler"); |
| QDF_ASSERT(false); |
| } |
| |
| qdf_mc_timer_stop(&pHddCtx->tdls_source_timer); |
| |
| hdd_bus_bandwidth_destroy(pHddCtx); |
| |
| hdd_wlan_stop_modules(pHddCtx, false); |
| |
| hdd_lpass_notify_stop(pHddCtx); |
| |
| hdd_info("WLAN driver shutdown complete"); |
| return QDF_STATUS_SUCCESS; |
| } |
| |
| #ifdef FEATURE_WLAN_DIAG_SUPPORT |
| /** |
| * hdd_wlan_ssr_reinit_event()- send ssr reinit state |
| * |
| * This Function send send ssr reinit state diag event |
| * |
| * Return: void. |
| */ |
| static void hdd_wlan_ssr_reinit_event(void) |
| { |
| WLAN_HOST_DIAG_EVENT_DEF(ssr_reinit, struct host_event_wlan_ssr_reinit); |
| qdf_mem_zero(&ssr_reinit, sizeof(ssr_reinit)); |
| ssr_reinit.status = SSR_SUB_SYSTEM_REINIT; |
| WLAN_HOST_DIAG_EVENT_REPORT(&ssr_reinit, |
| EVENT_WLAN_SSR_REINIT_SUBSYSTEM); |
| } |
| #else |
| static inline void hdd_wlan_ssr_reinit_event(void) |
| { |
| |
| } |
| #endif |
| |
| /** |
| * hdd_wlan_re_init() - HDD SSR re-init function |
| * |
| * This function is called by the HIF to re-initialize the driver after SSR. |
| * |
| * Return: QDF_STATUS_SUCCESS if the driver was re-initialized, |
| * or an error status otherwise |
| */ |
| QDF_STATUS hdd_wlan_re_init(void) |
| { |
| |
| v_CONTEXT_t p_cds_context = NULL; |
| hdd_context_t *pHddCtx = NULL; |
| hdd_adapter_t *pAdapter; |
| int ret; |
| bool bug_on_reinit_failure = CFG_BUG_ON_REINIT_FAILURE_DEFAULT; |
| |
| hdd_prevent_suspend(WIFI_POWER_EVENT_WAKELOCK_DRIVER_REINIT); |
| |
| /* Get the CDS context */ |
| p_cds_context = cds_get_global_context(); |
| if (p_cds_context == NULL) { |
| hdd_err("Failed cds_get_global_context"); |
| goto err_re_init; |
| } |
| |
| /* Get the HDD context */ |
| pHddCtx = cds_get_context(QDF_MODULE_ID_HDD); |
| if (!pHddCtx) { |
| hdd_err("HDD context is Null"); |
| goto err_re_init; |
| } |
| bug_on_reinit_failure = pHddCtx->config->bug_on_reinit_failure; |
| |
| /* The driver should always be initialized in STA mode after SSR */ |
| hdd_set_conparam(0); |
| /* Try to get an adapter from mode ID */ |
| pAdapter = hdd_get_adapter(pHddCtx, QDF_STA_MODE); |
| if (!pAdapter) { |
| pAdapter = hdd_get_adapter(pHddCtx, QDF_SAP_MODE); |
| if (!pAdapter) { |
| pAdapter = hdd_get_adapter(pHddCtx, QDF_IBSS_MODE); |
| if (!pAdapter) { |
| hdd_err("Failed to get Adapter!"); |
| } |
| } |
| } |
| |
| if (pHddCtx->config->enable_dp_trace) |
| qdf_dp_trace_init(); |
| |
| hdd_bus_bandwidth_init(pHddCtx); |
| |
| |
| ret = hdd_wlan_start_modules(pHddCtx, pAdapter, true); |
| if (ret) { |
| hdd_err("Failed to start wlan after error"); |
| goto err_wiphy_unregister; |
| } |
| |
| hdd_wlan_get_version(pHddCtx, NULL, NULL); |
| |
| wlan_hdd_send_svc_nlink_msg(pHddCtx->radio_index, |
| WLAN_SVC_FW_CRASHED_IND, NULL, 0); |
| |
| /* Restart all adapters */ |
| hdd_start_all_adapters(pHddCtx); |
| |
| pHddCtx->last_scan_reject_session_id = 0xFF; |
| pHddCtx->last_scan_reject_reason = 0; |
| pHddCtx->last_scan_reject_timestamp = 0; |
| |
| hdd_set_roaming_in_progress(false); |
| pHddCtx->btCoexModeSet = false; |
| |
| /* Allow the phone to go to sleep */ |
| hdd_allow_suspend(WIFI_POWER_EVENT_WAKELOCK_DRIVER_REINIT); |
| |
| ret = hdd_register_cb(pHddCtx); |
| if (ret) { |
| hdd_err("Failed to register HDD callbacks!"); |
| goto err_cds_disable; |
| } |
| |
| hdd_lpass_notify_start(pHddCtx); |
| |
| hdd_info("WLAN host driver reinitiation completed!"); |
| goto success; |
| |
| err_cds_disable: |
| hdd_wlan_stop_modules(pHddCtx, false); |
| |
| err_wiphy_unregister: |
| if (bug_on_reinit_failure) |
| QDF_BUG(0); |
| |
| if (pHddCtx) { |
| /* Unregister the Notifier's */ |
| hdd_unregister_notifiers(pHddCtx); |
| ptt_sock_deactivate_svc(); |
| nl_srv_exit(); |
| |
| hdd_close_all_adapters(pHddCtx, false); |
| wlan_hdd_cfg80211_deinit(pHddCtx->wiphy); |
| hdd_lpass_notify_stop(pHddCtx); |
| wlan_hdd_deinit_tx_rx_histogram(pHddCtx); |
| wiphy_unregister(pHddCtx->wiphy); |
| |
| } |
| |
| err_re_init: |
| hdd_ssr_timer_del(); |
| /* Allow the phone to go to sleep */ |
| hdd_allow_suspend(WIFI_POWER_EVENT_WAKELOCK_DRIVER_REINIT); |
| if (bug_on_reinit_failure) |
| QDF_BUG(0); |
| return -EPERM; |
| |
| success: |
| if (pHddCtx->config->sap_internal_restart) |
| hdd_ssr_restart_sap(pHddCtx); |
| hdd_ssr_timer_del(); |
| hdd_wlan_ssr_reinit_event(); |
| return QDF_STATUS_SUCCESS; |
| } |
| |
| /** |
| * wlan_hdd_set_powersave() - Set powersave mode |
| * @adapter: adapter upon which the request was received |
| * @allow_power_save: is wlan allowed to go into power save mode |
| * @timeout: timeout period in ms |
| * |
| * Return: 0 on success, non-zero on any error |
| */ |
| static int wlan_hdd_set_powersave(hdd_adapter_t *adapter, |
| bool allow_power_save, uint32_t timeout) |
| { |
| tHalHandle hal; |
| hdd_context_t *hdd_ctx; |
| |
| if (NULL == adapter) { |
| hdd_err("Adapter NULL"); |
| return -ENODEV; |
| } |
| |
| hdd_ctx = WLAN_HDD_GET_CTX(adapter); |
| if (!hdd_ctx) { |
| hdd_err("hdd context is NULL"); |
| return -EINVAL; |
| } |
| |
| hdd_debug("Allow power save: %d", allow_power_save); |
| hal = WLAN_HDD_GET_HAL_CTX(adapter); |
| |
| if (allow_power_save) { |
| if (QDF_STA_MODE == adapter->device_mode || |
| QDF_P2P_CLIENT_MODE == adapter->device_mode) { |
| hdd_debug("Disabling Auto Power save timer"); |
| sme_ps_disable_auto_ps_timer( |
| WLAN_HDD_GET_HAL_CTX(adapter), |
| adapter->sessionId); |
| } |
| |
| if (hdd_ctx->config && hdd_ctx->config->is_ps_enabled) { |
| hdd_debug("Wlan driver Entering Power save"); |
| |
| /* |
| * Enter Power Save command received from GUI |
| * this means DHCP is completed |
| */ |
| sme_ps_enable_disable(hal, adapter->sessionId, |
| SME_PS_ENABLE); |
| } else { |
| hdd_debug("Power Save is not enabled in the cfg"); |
| } |
| } else { |
| hdd_debug("Wlan driver Entering Full Power"); |
| |
| /* |
| * Enter Full power command received from GUI |
| * this means we are disconnected |
| */ |
| sme_ps_disable_auto_ps_timer(WLAN_HDD_GET_HAL_CTX(adapter), |
| adapter->sessionId); |
| sme_ps_enable_disable(hal, adapter->sessionId, SME_PS_DISABLE); |
| sme_ps_enable_auto_ps_timer(WLAN_HDD_GET_HAL_CTX(adapter), |
| adapter->sessionId, timeout); |
| } |
| |
| return 0; |
| } |
| |
| static void wlan_hdd_print_suspend_fail_stats(hdd_context_t *hdd_ctx) |
| { |
| struct suspend_resume_stats *stats = &hdd_ctx->suspend_resume_stats; |
| hdd_err("ipa:%d, radar:%d, roam:%d, scan:%d, initial_wakeup:%d", |
| stats->suspend_fail[SUSPEND_FAIL_IPA], |
| stats->suspend_fail[SUSPEND_FAIL_RADAR], |
| stats->suspend_fail[SUSPEND_FAIL_ROAM], |
| stats->suspend_fail[SUSPEND_FAIL_SCAN], |
| stats->suspend_fail[SUSPEND_FAIL_INITIAL_WAKEUP]); |
| } |
| |
| void wlan_hdd_inc_suspend_stats(hdd_context_t *hdd_ctx, |
| enum suspend_fail_reason reason) |
| { |
| wlan_hdd_print_suspend_fail_stats(hdd_ctx); |
| hdd_ctx->suspend_resume_stats.suspend_fail[reason]++; |
| wlan_hdd_print_suspend_fail_stats(hdd_ctx); |
| } |
| |
| /** |
| * __wlan_hdd_cfg80211_resume_wlan() - cfg80211 resume callback |
| * @wiphy: Pointer to wiphy |
| * |
| * This API is called when cfg80211 driver resumes driver updates |
| * latest sched_scan scan result(if any) to cfg80211 database |
| * |
| * Return: integer status |
| */ |
| static int __wlan_hdd_cfg80211_resume_wlan(struct wiphy *wiphy) |
| { |
| hdd_context_t *pHddCtx = wiphy_priv(wiphy); |
| hdd_adapter_t *pAdapter; |
| hdd_adapter_list_node_t *pAdapterNode, *pNext; |
| QDF_STATUS status = QDF_STATUS_SUCCESS; |
| int exit_code; |
| p_cds_sched_context cds_sched_context = get_cds_sched_ctxt(); |
| |
| ENTER(); |
| |
| if (cds_is_driver_recovering()) { |
| hdd_debug("Driver is recovering; Skipping resume"); |
| exit_code = 0; |
| goto exit_with_code; |
| } |
| |
| if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) { |
| hdd_err("Command not allowed in FTM mode"); |
| exit_code = -EINVAL; |
| goto exit_with_code; |
| } |
| |
| exit_code = wlan_hdd_validate_context(pHddCtx); |
| if (exit_code) { |
| hdd_err("Invalid HDD context"); |
| goto exit_with_code; |
| } |
| |
| mutex_lock(&pHddCtx->iface_change_lock); |
| if (pHddCtx->driver_status != DRIVER_MODULES_ENABLED) { |
| mutex_unlock(&pHddCtx->iface_change_lock); |
| hdd_debug("Driver is not enabled; Skipping resume"); |
| exit_code = 0; |
| goto exit_with_code; |
| } |
| mutex_unlock(&pHddCtx->iface_change_lock); |
| |
| pld_request_bus_bandwidth(pHddCtx->parent_dev, PLD_BUS_WIDTH_MEDIUM); |
| |
| status = hdd_resume_wlan(); |
| if (status != QDF_STATUS_SUCCESS) { |
| exit_code = 0; |
| goto exit_with_code; |
| } |
| /* Resume control path scheduler */ |
| if (pHddCtx->is_scheduler_suspended) { |
| scheduler_resume(); |
| pHddCtx->is_scheduler_suspended = false; |
| } |
| #ifdef QCA_CONFIG_SMP |
| /* Resume tlshim Rx thread */ |
| if (pHddCtx->is_ol_rx_thread_suspended) { |
| complete(&cds_sched_context->ol_resume_rx_event); |
| pHddCtx->is_ol_rx_thread_suspended = false; |
| } |
| #endif |
| |
| MTRACE(qdf_trace(QDF_MODULE_ID_HDD, |
| TRACE_CODE_HDD_CFG80211_RESUME_WLAN, |
| NO_SESSION, pHddCtx->isWiphySuspended)); |
| qdf_spin_lock(&pHddCtx->sched_scan_lock); |
| pHddCtx->isWiphySuspended = false; |
| if (true != pHddCtx->isSchedScanUpdatePending) { |
| qdf_spin_unlock(&pHddCtx->sched_scan_lock); |
| hdd_debug("Return resume is not due to PNO indication"); |
| goto exit_with_success; |
| } |
| /* Reset flag to avoid updatating cfg80211 data old results again */ |
| pHddCtx->isSchedScanUpdatePending = false; |
| qdf_spin_unlock(&pHddCtx->sched_scan_lock); |
| |
| status = hdd_get_front_adapter(pHddCtx, &pAdapterNode); |
| while (NULL != pAdapterNode && QDF_STATUS_SUCCESS == status) { |
| pAdapter = pAdapterNode->pAdapter; |
| if ((NULL != pAdapter) && |
| (QDF_STA_MODE == pAdapter->device_mode)) { |
| if (0 != |
| wlan_hdd_cfg80211_update_bss(pHddCtx->wiphy, |
| pAdapter, 0)) { |
| hdd_warn("NO SCAN result"); |
| } else { |
| /* Acquire wakelock to handle the case where |
| * APP's tries to suspend immediately after |
| * updating the scan results. Whis results in |
| * app's is in suspended state and not able to |
| * process the connect request to AP |
| */ |
| hdd_prevent_suspend_timeout( |
| HDD_WAKE_LOCK_RESUME_DURATION, |
| WIFI_POWER_EVENT_WAKELOCK_RESUME_WLAN); |
| cfg80211_sched_scan_results(pHddCtx->wiphy); |
| } |
| |
| hdd_debug("cfg80211 scan result database updated"); |
| goto exit_with_success; |
| } |
| status = hdd_get_next_adapter(pHddCtx, pAdapterNode, &pNext); |
| pAdapterNode = pNext; |
| } |
| |
| exit_with_success: |
| pHddCtx->suspend_resume_stats.resumes++; |
| exit_code = 0; |
| |
| exit_with_code: |
| EXIT(); |
| return exit_code; |
| } |
| |
| /** |
| * wlan_hdd_cfg80211_resume_wlan() - cfg80211 resume callback |
| * @wiphy: Pointer to wiphy |
| * |
| * This API is called when cfg80211 driver resumes driver updates |
| * latest sched_scan scan result(if any) to cfg80211 database |
| * |
| * Return: integer status |
| */ |
| int wlan_hdd_cfg80211_resume_wlan(struct wiphy *wiphy) |
| { |
| int ret; |
| |
| cds_ssr_protect(__func__); |
| ret = __wlan_hdd_cfg80211_resume_wlan(wiphy); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |
| |
| static void hdd_suspend_cb(void) |
| { |
| hdd_context_t *hdd_ctx; |
| |
| hdd_ctx = cds_get_context(QDF_MODULE_ID_HDD); |
| if (!hdd_ctx) { |
| cds_err("HDD context is NULL"); |
| return; |
| } |
| |
| complete(&hdd_ctx->mc_sus_event_var); |
| } |
| |
| /** |
| * __wlan_hdd_cfg80211_suspend_wlan() - cfg80211 suspend callback |
| * @wiphy: Pointer to wiphy |
| * @wow: Pointer to wow |
| * |
| * This API is called when cfg80211 driver suspends |
| * |
| * Return: integer status |
| */ |
| static int __wlan_hdd_cfg80211_suspend_wlan(struct wiphy *wiphy, |
| struct cfg80211_wowlan *wow) |
| { |
| #ifdef QCA_CONFIG_SMP |
| #define RX_TLSHIM_SUSPEND_TIMEOUT 200 /* msecs */ |
| #endif |
| hdd_context_t *pHddCtx = wiphy_priv(wiphy); |
| p_cds_sched_context cds_sched_context = get_cds_sched_ctxt(); |
| hdd_adapter_list_node_t *pAdapterNode = NULL, *pNext = NULL; |
| hdd_adapter_t *pAdapter; |
| hdd_scaninfo_t *pScanInfo; |
| QDF_STATUS status; |
| int rc; |
| |
| ENTER(); |
| |
| if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) { |
| hdd_err("Command not allowed in FTM mode"); |
| return -EINVAL; |
| } |
| |
| rc = wlan_hdd_validate_context(pHddCtx); |
| if (0 != rc) |
| return rc; |
| |
| mutex_lock(&pHddCtx->iface_change_lock); |
| if (pHddCtx->driver_status != DRIVER_MODULES_ENABLED) { |
| mutex_unlock(&pHddCtx->iface_change_lock); |
| hdd_debug("Driver Modules not Enabled "); |
| return 0; |
| } |
| mutex_unlock(&pHddCtx->iface_change_lock); |
| |
| /* If RADAR detection is in progress (HDD), prevent suspend. The flag |
| * "dfs_cac_block_tx" is set to true when RADAR is found and stay true |
| * until CAC is done for a SoftAP which is in started state. |
| */ |
| status = hdd_get_front_adapter(pHddCtx, &pAdapterNode); |
| while (NULL != pAdapterNode && QDF_STATUS_SUCCESS == status) { |
| pAdapter = pAdapterNode->pAdapter; |
| |
| if (wlan_hdd_validate_session_id(pAdapter->sessionId)) { |
| hdd_err("invalid session id: %d", pAdapter->sessionId); |
| goto next_adapter; |
| } |
| |
| if (QDF_SAP_MODE == pAdapter->device_mode) { |
| if (BSS_START == |
| WLAN_HDD_GET_HOSTAP_STATE_PTR(pAdapter)->bssState && |
| true == |
| WLAN_HDD_GET_AP_CTX_PTR(pAdapter)-> |
| dfs_cac_block_tx) { |
| hdd_err("RADAR detection in progress, do not allow suspend"); |
| wlan_hdd_inc_suspend_stats(pHddCtx, |
| SUSPEND_FAIL_RADAR); |
| return -EAGAIN; |
| } else if (!pHddCtx->config->enableSapSuspend) { |
| /* return -EOPNOTSUPP if SAP does not support |
| * suspend |
| */ |
| hdd_err("SAP does not support suspend!!"); |
| return -EOPNOTSUPP; |
| } |
| } else if (QDF_P2P_GO_MODE == pAdapter->device_mode) { |
| if (!pHddCtx->config->enableSapSuspend) { |
| /* return -EOPNOTSUPP if GO does not support |
| * suspend |
| */ |
| hdd_err("GO does not support suspend!!"); |
| return -EOPNOTSUPP; |
| } |
| } |
| if (pAdapter->is_roc_inprogress) |
| wlan_hdd_cleanup_remain_on_channel_ctx(pAdapter); |
| next_adapter: |
| status = hdd_get_next_adapter(pHddCtx, pAdapterNode, &pNext); |
| pAdapterNode = pNext; |
| } |
| |
| /* Stop ongoing scan on each interface */ |
| status = hdd_get_front_adapter(pHddCtx, &pAdapterNode); |
| while (NULL != pAdapterNode && QDF_STATUS_SUCCESS == status) { |
| pAdapter = pAdapterNode->pAdapter; |
| pScanInfo = &pAdapter->scan_info; |
| |
| if (sme_neighbor_middle_of_roaming |
| (pHddCtx->hHal, pAdapter->sessionId)) { |
| hdd_err("Roaming in progress, do not allow suspend"); |
| wlan_hdd_inc_suspend_stats(pHddCtx, |
| SUSPEND_FAIL_ROAM); |
| return -EAGAIN; |
| } |
| |
| if (pScanInfo->mScanPending) |
| wlan_abort_scan(pHddCtx->hdd_pdev, INVAL_PDEV_ID, |
| pAdapter->sessionId, INVALID_SCAN_ID, true); |
| status = hdd_get_next_adapter(pHddCtx, pAdapterNode, &pNext); |
| pAdapterNode = pNext; |
| } |
| |
| /* |
| * Suspend IPA early before proceeding to suspend other entities like |
| * firmware to avoid any race conditions. |
| */ |
| if (hdd_ipa_suspend(pHddCtx)) { |
| hdd_err("IPA not ready to suspend!"); |
| wlan_hdd_inc_suspend_stats(pHddCtx, SUSPEND_FAIL_IPA); |
| return -EAGAIN; |
| } |
| |
| /* Suspend control path scheduler */ |
| scheduler_register_hdd_suspend_callback(hdd_suspend_cb); |
| scheduler_set_event_mask(MC_SUSPEND_EVENT); |
| scheduler_wake_up_controller_thread(); |
| |
| /* Wait for suspend confirmation from scheduler */ |
| rc = wait_for_completion_timeout(&pHddCtx->mc_sus_event_var, |
| msecs_to_jiffies(WLAN_WAIT_TIME_MCTHREAD_SUSPEND)); |
| if (!rc) { |
| scheduler_clear_event_mask(MC_SUSPEND_EVENT); |
| hdd_err("Failed to stop mc thread"); |
| goto resume_tx; |
| } |
| pHddCtx->is_scheduler_suspended = true; |
| |
| #ifdef QCA_CONFIG_SMP |
| /* Suspend tlshim rx thread */ |
| set_bit(RX_SUSPEND_EVENT, &cds_sched_context->ol_rx_event_flag); |
| wake_up_interruptible(&cds_sched_context->ol_rx_wait_queue); |
| rc = wait_for_completion_timeout(&cds_sched_context-> |
| ol_suspend_rx_event, |
| msecs_to_jiffies |
| (RX_TLSHIM_SUSPEND_TIMEOUT)); |
| if (!rc) { |
| clear_bit(RX_SUSPEND_EVENT, |
| &cds_sched_context->ol_rx_event_flag); |
| hdd_err("Failed to stop tl_shim rx thread"); |
| goto resume_all; |
| } |
| pHddCtx->is_ol_rx_thread_suspended = true; |
| #endif |
| if (hdd_suspend_wlan() < 0) |
| goto resume_all; |
| |
| MTRACE(qdf_trace(QDF_MODULE_ID_HDD, |
| TRACE_CODE_HDD_CFG80211_SUSPEND_WLAN, |
| NO_SESSION, pHddCtx->isWiphySuspended)); |
| pHddCtx->isWiphySuspended = true; |
| |
| pld_request_bus_bandwidth(pHddCtx->parent_dev, PLD_BUS_WIDTH_NONE); |
| |
| EXIT(); |
| return 0; |
| |
| #ifdef QCA_CONFIG_SMP |
| resume_all: |
| |
| scheduler_resume(); |
| pHddCtx->is_scheduler_suspended = false; |
| #endif |
| |
| resume_tx: |
| |
| hdd_resume_wlan(); |
| return -ETIME; |
| |
| } |
| |
| /** |
| * wlan_hdd_cfg80211_suspend_wlan() - cfg80211 suspend callback |
| * @wiphy: Pointer to wiphy |
| * @wow: Pointer to wow |
| * |
| * This API is called when cfg80211 driver suspends |
| * |
| * Return: integer status |
| */ |
| int wlan_hdd_cfg80211_suspend_wlan(struct wiphy *wiphy, |
| struct cfg80211_wowlan *wow) |
| { |
| int ret; |
| |
| cds_ssr_protect(__func__); |
| ret = __wlan_hdd_cfg80211_suspend_wlan(wiphy, wow); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |
| |
| /** |
| * hdd_stop_dhcp_ind() - API to stop DHCP sequence |
| * @adapter: Adapter on which DHCP needs to be stopped |
| * |
| * Release the wakelock held for DHCP process and allow |
| * the runtime pm to continue |
| * |
| * Return: None |
| */ |
| static void hdd_stop_dhcp_ind(hdd_adapter_t *adapter) |
| { |
| hdd_context_t *hdd_ctx = WLAN_HDD_GET_CTX(adapter); |
| |
| hdd_debug("DHCP stop indicated through power save"); |
| sme_dhcp_stop_ind(hdd_ctx->hHal, adapter->device_mode, |
| adapter->macAddressCurrent.bytes, |
| adapter->sessionId); |
| hdd_allow_suspend(WIFI_POWER_EVENT_WAKELOCK_DHCP); |
| qdf_runtime_pm_allow_suspend(adapter->connect_rpm_ctx.connect); |
| } |
| |
| /** |
| * hdd_start_dhcp_ind() - API to start DHCP sequence |
| * @adapter: Adapter on which DHCP needs to be stopped |
| * |
| * Prevent APPS suspend and the runtime suspend during |
| * DHCP sequence |
| * |
| * Return: None |
| */ |
| static void hdd_start_dhcp_ind(hdd_adapter_t *adapter) |
| { |
| hdd_context_t *hdd_ctx = WLAN_HDD_GET_CTX(adapter); |
| |
| hdd_debug("DHCP start indicated through power save"); |
| qdf_runtime_pm_prevent_suspend(adapter->connect_rpm_ctx.connect); |
| hdd_prevent_suspend_timeout(1000, WIFI_POWER_EVENT_WAKELOCK_DHCP); |
| sme_dhcp_start_ind(hdd_ctx->hHal, adapter->device_mode, |
| adapter->macAddressCurrent.bytes, |
| adapter->sessionId); |
| } |
| |
| /** |
| * __wlan_hdd_cfg80211_set_power_mgmt() - set cfg80211 power management config |
| * @wiphy: Pointer to wiphy |
| * @dev: Pointer to network device |
| * @allow_power_save: is wlan allowed to go into power save mode |
| * @timeout: Timeout value in ms |
| * |
| * Return: 0 for success, non-zero for failure |
| */ |
| static int __wlan_hdd_cfg80211_set_power_mgmt(struct wiphy *wiphy, |
| struct net_device *dev, |
| bool allow_power_save, |
| int timeout) |
| { |
| hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev); |
| hdd_context_t *pHddCtx; |
| int status; |
| |
| ENTER(); |
| |
| if (timeout < 0) { |
| hdd_debug("User space timeout: %d; Using default instead: %d", |
| timeout, AUTO_PS_ENTRY_USER_TIMER_DEFAULT_VALUE); |
| timeout = AUTO_PS_ENTRY_USER_TIMER_DEFAULT_VALUE; |
| } |
| |
| if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) { |
| hdd_err("Command not allowed in FTM mode"); |
| return -EINVAL; |
| } |
| |
| if (wlan_hdd_validate_session_id(pAdapter->sessionId)) { |
| hdd_err("invalid session id: %d", pAdapter->sessionId); |
| return -EINVAL; |
| } |
| |
| MTRACE(qdf_trace(QDF_MODULE_ID_HDD, |
| TRACE_CODE_HDD_CFG80211_SET_POWER_MGMT, |
| pAdapter->sessionId, timeout)); |
| |
| pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| status = wlan_hdd_validate_context(pHddCtx); |
| |
| if (0 != status) |
| return status; |
| |
| mutex_lock(&pHddCtx->iface_change_lock); |
| if (pHddCtx->driver_status != DRIVER_MODULES_ENABLED) { |
| mutex_unlock(&pHddCtx->iface_change_lock); |
| hdd_debug("Driver Module not enabled return success"); |
| return 0; |
| } |
| mutex_unlock(&pHddCtx->iface_change_lock); |
| |
| status = wlan_hdd_set_powersave(pAdapter, allow_power_save, timeout); |
| |
| allow_power_save ? hdd_stop_dhcp_ind(pAdapter) : |
| hdd_start_dhcp_ind(pAdapter); |
| |
| EXIT(); |
| return status; |
| } |
| |
| /** |
| * wlan_hdd_cfg80211_set_power_mgmt() - set cfg80211 power management config |
| * @wiphy: Pointer to wiphy |
| * @dev: Pointer to network device |
| * @allow_power_save: is wlan allowed to go into power save mode |
| * @timeout: Timeout value |
| * |
| * Return: 0 for success, non-zero for failure |
| */ |
| int wlan_hdd_cfg80211_set_power_mgmt(struct wiphy *wiphy, |
| struct net_device *dev, |
| bool allow_power_save, |
| int timeout) |
| { |
| int ret; |
| |
| cds_ssr_protect(__func__); |
| ret = __wlan_hdd_cfg80211_set_power_mgmt(wiphy, dev, |
| allow_power_save, timeout); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |
| |
| /** |
| * __wlan_hdd_cfg80211_set_txpower() - set TX power |
| * @wiphy: Pointer to wiphy |
| * @wdev: Pointer to network device |
| * @type: TX power setting type |
| * @dbm: TX power in dbm |
| * |
| * Return: 0 for success, non-zero for failure |
| */ |
| static int __wlan_hdd_cfg80211_set_txpower(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| enum nl80211_tx_power_setting type, |
| int dbm) |
| { |
| hdd_context_t *pHddCtx = (hdd_context_t *) wiphy_priv(wiphy); |
| tHalHandle hHal = NULL; |
| struct qdf_mac_addr bssid = QDF_MAC_ADDR_BROADCAST_INITIALIZER; |
| struct qdf_mac_addr selfMac = QDF_MAC_ADDR_BROADCAST_INITIALIZER; |
| int status; |
| |
| ENTER(); |
| |
| if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) { |
| hdd_err("Command not allowed in FTM mode"); |
| return -EINVAL; |
| } |
| |
| MTRACE(qdf_trace(QDF_MODULE_ID_HDD, |
| TRACE_CODE_HDD_CFG80211_SET_TXPOWER, |
| NO_SESSION, type)); |
| |
| status = wlan_hdd_validate_context(pHddCtx); |
| if (0 != status) |
| return status; |
| |
| hHal = pHddCtx->hHal; |
| |
| if (0 != sme_cfg_set_int(hHal, WNI_CFG_CURRENT_TX_POWER_LEVEL, dbm)) { |
| hdd_err("sme_cfg_set_int failed for tx power %hu", |
| dbm); |
| return -EIO; |
| } |
| |
| hdd_debug("Set tx power level %d dbm", dbm); |
| |
| switch (type) { |
| /* Automatically determine transmit power */ |
| case NL80211_TX_POWER_AUTOMATIC: |
| /* Fall through */ |
| case NL80211_TX_POWER_LIMITED: /* Limit TX power by the mBm parameter */ |
| if (sme_set_max_tx_power(hHal, bssid, selfMac, dbm) != |
| QDF_STATUS_SUCCESS) { |
| hdd_err("Setting maximum tx power failed"); |
| return -EIO; |
| } |
| break; |
| |
| case NL80211_TX_POWER_FIXED: /* Fix TX power to the mBm parameter */ |
| hdd_err("NL80211_TX_POWER_FIXED not supported"); |
| return -EOPNOTSUPP; |
| break; |
| |
| default: |
| hdd_err("Invalid power setting type %d", type); |
| return -EIO; |
| } |
| |
| EXIT(); |
| return 0; |
| } |
| |
| /** |
| * wlan_hdd_cfg80211_set_txpower() - set TX power |
| * @wiphy: Pointer to wiphy |
| * @wdev: Pointer to network device |
| * @type: TX power setting type |
| * @dbm: TX power in dbm |
| * |
| * Return: 0 for success, non-zero for failure |
| */ |
| int wlan_hdd_cfg80211_set_txpower(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| enum nl80211_tx_power_setting type, |
| int dbm) |
| { |
| int ret; |
| cds_ssr_protect(__func__); |
| ret = __wlan_hdd_cfg80211_set_txpower(wiphy, |
| wdev, |
| type, dbm); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |
| |
| /** |
| * __wlan_hdd_cfg80211_get_txpower() - get TX power |
| * @wiphy: Pointer to wiphy |
| * @wdev: Pointer to network device |
| * @dbm: Pointer to TX power in dbm |
| * |
| * Return: 0 for success, non-zero for failure |
| */ |
| static int __wlan_hdd_cfg80211_get_txpower(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| int *dbm) |
| { |
| |
| hdd_context_t *pHddCtx = (hdd_context_t *) wiphy_priv(wiphy); |
| struct net_device *ndev = wdev->netdev; |
| hdd_adapter_t *adapter = WLAN_HDD_GET_PRIV_PTR(ndev); |
| int status; |
| |
| ENTER(); |
| |
| if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) { |
| hdd_err("Command not allowed in FTM mode"); |
| return -EINVAL; |
| } |
| |
| status = wlan_hdd_validate_context(pHddCtx); |
| if (0 != status) { |
| *dbm = 0; |
| return status; |
| } |
| |
| /* Validate adapter sessionId */ |
| if (wlan_hdd_validate_session_id(adapter->sessionId)) { |
| hdd_err("invalid session id: %d", adapter->sessionId); |
| return -EINVAL; |
| } |
| |
| mutex_lock(&pHddCtx->iface_change_lock); |
| if (pHddCtx->driver_status != DRIVER_MODULES_ENABLED) { |
| mutex_unlock(&pHddCtx->iface_change_lock); |
| hdd_debug("Driver Module not enabled return success"); |
| /* Send cached data to upperlayer*/ |
| *dbm = adapter->hdd_stats.ClassA_stat.max_pwr; |
| return 0; |
| } |
| mutex_unlock(&pHddCtx->iface_change_lock); |
| |
| MTRACE(qdf_trace(QDF_MODULE_ID_HDD, |
| TRACE_CODE_HDD_CFG80211_GET_TXPOWER, |
| adapter->sessionId, adapter->device_mode)); |
| wlan_hdd_get_class_astats(adapter); |
| *dbm = adapter->hdd_stats.ClassA_stat.max_pwr; |
| |
| EXIT(); |
| return 0; |
| } |
| |
| /** |
| * wlan_hdd_cfg80211_get_txpower() - cfg80211 get power handler function |
| * @wiphy: Pointer to wiphy structure. |
| * @wdev: Pointer to wireless_dev structure. |
| * @dbm: dbm |
| * |
| * This is the cfg80211 get txpower handler function which invokes |
| * the internal function @__wlan_hdd_cfg80211_get_txpower with |
| * SSR protection. |
| * |
| * Return: 0 for success, error number on failure. |
| */ |
| int wlan_hdd_cfg80211_get_txpower(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| int *dbm) |
| { |
| int ret; |
| |
| cds_ssr_protect(__func__); |
| ret = __wlan_hdd_cfg80211_get_txpower(wiphy, wdev, dbm); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |
| |
| /** |
| * hdd_set_qpower_config() - set qpower config to firmware |
| * @adapter: HDD adapter |
| * @qpower: new qpower config value |
| * |
| * Return: 0 on success; Errno on failure |
| */ |
| int hdd_set_qpower_config(hdd_context_t *hddctx, hdd_adapter_t *adapter, |
| u8 qpower) |
| { |
| QDF_STATUS status; |
| |
| if (!hddctx->config->enablePowersaveOffload) { |
| hdd_err("qpower is disabled in configuration"); |
| return -EINVAL; |
| } |
| |
| if (qpower > PS_DUTY_CYCLING_QPOWER || |
| qpower < PS_LEGACY_NODEEPSLEEP) { |
| hdd_err("invalid qpower value: %d", qpower); |
| return -EINVAL; |
| } |
| |
| if (hddctx->config->nMaxPsPoll) { |
| if ((qpower == PS_QPOWER_NODEEPSLEEP) || |
| (qpower == PS_LEGACY_NODEEPSLEEP)) |
| qpower = PS_LEGACY_NODEEPSLEEP; |
| else |
| qpower = PS_LEGACY_DEEPSLEEP; |
| hdd_info("Qpower disabled, %d", qpower); |
| } |
| status = wma_set_qpower_config(adapter->sessionId, qpower); |
| if (status != QDF_STATUS_SUCCESS) { |
| hdd_err("failed to configure qpower: %d", status); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| |
| #ifdef WLAN_SUSPEND_RESUME_TEST |
| static struct net_device *g_dev; |
| static struct wiphy *g_wiphy; |
| static enum wow_resume_trigger g_resume_trigger; |
| |
| #define HDD_FA_SUSPENDED_BIT (0) |
| static unsigned long fake_apps_state; |
| |
| /** |
| * __hdd_wlan_fake_apps_resume() - The core logic for |
| * hdd_wlan_fake_apps_resume() skipping the call to hif_fake_apps_resume(), |
| * which is only need for non-irq resume |
| * @wiphy: the kernel wiphy struct for the device being resumed |
| * @dev: the kernel net_device struct for the device being resumed |
| * |
| * Return: none, calls QDF_BUG() on failure |
| */ |
| static void __hdd_wlan_fake_apps_resume(struct wiphy *wiphy, |
| struct net_device *dev) |
| { |
| struct hif_opaque_softc *hif_ctx; |
| qdf_device_t qdf_dev; |
| |
| hdd_debug("Unit-test resume WLAN"); |
| |
| qdf_dev = cds_get_context(QDF_MODULE_ID_QDF_DEVICE); |
| if (!qdf_dev) { |
| hdd_err("Failed to get QDF device context"); |
| QDF_BUG(0); |
| return; |
| } |
| |
| hif_ctx = cds_get_context(QDF_MODULE_ID_HIF); |
| if (!hif_ctx) { |
| hdd_err("Failed to get HIF context"); |
| return; |
| } |
| |
| if (!test_and_clear_bit(HDD_FA_SUSPENDED_BIT, &fake_apps_state)) { |
| hdd_debug("Not unit-test suspended; Nothing to do"); |
| return; |
| } |
| |
| /* simulate kernel disable irqs */ |
| QDF_BUG(!hif_apps_wake_irq_disable(hif_ctx)); |
| |
| QDF_BUG(!wlan_hdd_bus_resume_noirq()); |
| |
| /* simulate kernel enable irqs */ |
| QDF_BUG(!hif_apps_irqs_enable(hif_ctx)); |
| |
| QDF_BUG(!wlan_hdd_bus_resume()); |
| |
| QDF_BUG(!wlan_hdd_cfg80211_resume_wlan(wiphy)); |
| |
| if (g_resume_trigger == WOW_RESUME_TRIGGER_HTC_WAKEUP) |
| hif_vote_link_down(hif_ctx); |
| |
| dev->watchdog_timeo = HDD_TX_TIMEOUT; |
| |
| hdd_debug("Unit-test resume succeeded"); |
| } |
| |
| /** |
| * hdd_wlan_fake_apps_resume_irq_callback() - Irq callback function for resuming |
| * from unit-test initiated suspend from irq wakeup signal |
| * @val: interrupt val |
| * |
| * Resume wlan after getting very 1st CE interrupt from target |
| * |
| * Return: none |
| */ |
| static void hdd_wlan_fake_apps_resume_irq_callback(uint32_t val) |
| { |
| hdd_debug("Trigger unit-test resume WLAN; val: 0x%x", val); |
| |
| QDF_BUG(g_wiphy); |
| QDF_BUG(g_dev); |
| __hdd_wlan_fake_apps_resume(g_wiphy, g_dev); |
| g_wiphy = NULL; |
| g_dev = NULL; |
| } |
| |
| int hdd_wlan_fake_apps_suspend(struct wiphy *wiphy, struct net_device *dev, |
| enum wow_interface_pause pause_setting, |
| enum wow_resume_trigger resume_setting) |
| { |
| qdf_device_t qdf_dev; |
| struct hif_opaque_softc *hif_ctx; |
| int errno; |
| struct wow_enable_params wow_params = { |
| .is_unit_test = true, |
| .interface_pause = pause_setting, |
| .resume_trigger = resume_setting |
| }; |
| |
| hdd_debug("Unit-test suspend WLAN"); |
| |
| if (pause_setting < WOW_INTERFACE_PAUSE_DEFAULT || |
| pause_setting >= WOW_INTERFACE_PAUSE_COUNT) { |
| hdd_err("Invalid interface pause %d (expected range [0, 2])", |
| pause_setting); |
| return -EINVAL; |
| } |
| |
| if (resume_setting < WOW_RESUME_TRIGGER_DEFAULT || |
| resume_setting >= WOW_RESUME_TRIGGER_COUNT) { |
| hdd_err("Invalid resume trigger %d (expected range [0, 2])", |
| resume_setting); |
| return -EINVAL; |
| } |
| |
| qdf_dev = cds_get_context(QDF_MODULE_ID_QDF_DEVICE); |
| if (!qdf_dev) { |
| hdd_err("Failed to get QDF device context"); |
| return -EINVAL; |
| } |
| |
| hif_ctx = cds_get_context(QDF_MODULE_ID_HIF); |
| if (!hif_ctx) { |
| hdd_err("Failed to get HIF context"); |
| return -EINVAL; |
| } |
| |
| if (test_and_set_bit(HDD_FA_SUSPENDED_BIT, &fake_apps_state)) { |
| hdd_debug("Already unit-test suspended; Nothing to do"); |
| return 0; |
| } |
| |
| /* pci link is needed to wakeup from HTC wakeup trigger */ |
| if (resume_setting == WOW_RESUME_TRIGGER_HTC_WAKEUP) |
| hif_vote_link_up(hif_ctx); |
| |
| errno = wlan_hdd_cfg80211_suspend_wlan(wiphy, NULL); |
| if (errno) |
| goto link_down; |
| |
| errno = wlan_hdd_unit_test_bus_suspend(wow_params); |
| if (errno) |
| goto cfg80211_resume; |
| |
| /* simulate kernel disabling irqs */ |
| errno = hif_apps_irqs_disable(hif_ctx); |
| if (errno) |
| goto bus_resume; |
| |
| errno = wlan_hdd_bus_suspend_noirq(); |
| if (errno) |
| goto enable_irqs; |
| |
| /* pass wiphy/dev to callback via global variables */ |
| g_wiphy = wiphy; |
| g_dev = dev; |
| g_resume_trigger = resume_setting; |
| hif_fake_apps_suspend(hif_ctx, hdd_wlan_fake_apps_resume_irq_callback); |
| |
| /* re-enable wake irq */ |
| errno = hif_apps_wake_irq_enable(hif_ctx); |
| if (errno) |
| goto fake_apps_resume; |
| |
| /* |
| * Tell the kernel not to worry if TX queues aren't moving. This is |
| * expected since we are suspending the wifi hardware, but not APPS |
| */ |
| dev->watchdog_timeo = INT_MAX; |
| |
| hdd_debug("Unit-test suspend succeeded"); |
| |
| return 0; |
| |
| fake_apps_resume: |
| hif_fake_apps_resume(hif_ctx); |
| |
| enable_irqs: |
| QDF_BUG(!hif_apps_irqs_enable(hif_ctx)); |
| |
| bus_resume: |
| QDF_BUG(!wlan_hdd_bus_resume()); |
| |
| cfg80211_resume: |
| QDF_BUG(!wlan_hdd_cfg80211_resume_wlan(wiphy)); |
| |
| link_down: |
| hif_vote_link_down(hif_ctx); |
| |
| clear_bit(HDD_FA_SUSPENDED_BIT, &fake_apps_state); |
| hdd_err("Unit-test suspend failed: %d", errno); |
| |
| return errno; |
| } |
| |
| int hdd_wlan_fake_apps_resume(struct wiphy *wiphy, struct net_device *dev) |
| { |
| struct hif_opaque_softc *hif_ctx; |
| |
| hif_ctx = cds_get_context(QDF_MODULE_ID_HIF); |
| if (!hif_ctx) { |
| hdd_err("Failed to get HIF context"); |
| return -EINVAL; |
| } |
| |
| hif_fake_apps_resume(hif_ctx); |
| __hdd_wlan_fake_apps_resume(wiphy, dev); |
| |
| return 0; |
| } |
| #endif |