From 8dafb70edc7151bdb319b6d22895d9886c7172eb Mon Sep 17 00:00:00 2001 From: Vasanthakumar Thiagarajan Date: Tue, 25 Oct 2011 19:33:58 +0530 Subject: [PATCH] ath6kl: Refactor wiphy dev and net dev init functions This refactoring is done in a manner that it can be used for multiple virtual interface. Signed-off-by: Vasanthakumar Thiagarajan Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath6kl/cfg80211.c | 146 +++++++++++++++++--- drivers/net/wireless/ath/ath6kl/cfg80211.h | 7 +- drivers/net/wireless/ath/ath6kl/core.h | 3 + drivers/net/wireless/ath/ath6kl/init.c | 149 +++++---------------- drivers/net/wireless/ath/ath6kl/sdio.c | 8 +- 5 files changed, 173 insertions(+), 140 deletions(-) diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c index 4fee927770fc..c827ced7755f 100644 --- a/drivers/net/wireless/ath/ath6kl/cfg80211.c +++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c @@ -1919,45 +1919,83 @@ static struct cfg80211_ops ath6kl_cfg80211_ops = { .mgmt_frame_register = ath6kl_mgmt_frame_register, }; -struct wireless_dev *ath6kl_cfg80211_init(struct device *dev) +struct ath6kl *ath6kl_core_alloc(struct device *dev) { - int ret = 0; - struct wireless_dev *wdev; struct ath6kl *ar; struct wiphy *wiphy; - - wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); - if (!wdev) { - ath6kl_err("couldn't allocate wireless device\n"); - return NULL; - } + u8 ctr; /* create a new wiphy for use with cfg80211 */ wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl)); + if (!wiphy) { ath6kl_err("couldn't allocate wiphy device\n"); - kfree(wdev); return NULL; } ar = wiphy_priv(wiphy); ar->p2p = !!ath6kl_p2p; ar->wiphy = wiphy; - wdev->wiphy = wiphy; + ar->dev = dev; + + spin_lock_init(&ar->lock); + spin_lock_init(&ar->mcastpsq_lock); + + init_waitqueue_head(&ar->event_wq); + sema_init(&ar->sem, 1); + + INIT_LIST_HEAD(&ar->amsdu_rx_buffer_queue); + + clear_bit(WMI_ENABLED, &ar->flag); + clear_bit(SKIP_SCAN, &ar->flag); + clear_bit(DESTROY_IN_PROGRESS, &ar->flag); + + ar->listen_intvl_t = A_DEFAULT_LISTEN_INTERVAL; + ar->listen_intvl_b = 0; + ar->tx_pwr = 0; + + ar->intra_bss = 1; + memset(&ar->sc_params, 0, sizeof(ar->sc_params)); + ar->sc_params.short_scan_ratio = WMI_SHORTSCANRATIO_DEFAULT; + ar->sc_params.scan_ctrl_flags = DEFAULT_SCAN_CTRL_FLAGS; + ar->lrssi_roam_threshold = DEF_LRSSI_ROAM_THRESHOLD; + + memset((u8 *)ar->sta_list, 0, + AP_MAX_NUM_STA * sizeof(struct ath6kl_sta)); + + /* Init the PS queues */ + for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { + spin_lock_init(&ar->sta_list[ctr].psq_lock); + skb_queue_head_init(&ar->sta_list[ctr].psq); + } + + skb_queue_head_init(&ar->mcastpsq); + + memcpy(ar->ap_country_code, DEF_AP_COUNTRY_CODE, 3); + + return ar; +} + +int ath6kl_register_ieee80211_hw(struct ath6kl *ar) +{ + struct wiphy *wiphy = ar->wiphy; + int ret; wiphy->mgmt_stypes = ath6kl_mgmt_stypes; wiphy->max_remain_on_channel_duration = 5000; /* set device pointer for wiphy */ - set_wiphy_dev(wiphy, dev); + set_wiphy_dev(wiphy, ar->dev); wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | - BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP); + BIT(NL80211_IFTYPE_ADHOC) | + BIT(NL80211_IFTYPE_AP); if (ar->p2p) { wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) | - BIT(NL80211_IFTYPE_P2P_CLIENT); + BIT(NL80211_IFTYPE_P2P_CLIENT); } + /* max num of ssids that can be probed during scanning */ wiphy->max_scan_ssids = MAX_PROBED_SSID_INDEX; wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */ @@ -1971,18 +2009,85 @@ struct wireless_dev *ath6kl_cfg80211_init(struct device *dev) ret = wiphy_register(wiphy); if (ret < 0) { ath6kl_err("couldn't register wiphy device\n"); - wiphy_free(wiphy); - kfree(wdev); - return NULL; + return ret; } - return wdev; + return 0; } -void ath6kl_cfg80211_deinit(struct ath6kl *ar) +static int ath6kl_init_if_data(struct ath6kl *ar, struct net_device *ndev) { - struct wireless_dev *wdev = ar->wdev; + ar->aggr_cntxt = aggr_init(ndev); + if (!ar->aggr_cntxt) { + ath6kl_err("failed to initialize aggr\n"); + return -ENOMEM; + } + + setup_timer(&ar->disconnect_timer, disconnect_timer_handler, + (unsigned long) ndev); + return 0; +} + +void ath6kl_deinit_if_data(struct ath6kl *ar, struct net_device *ndev) +{ + aggr_module_destroy(ar->aggr_cntxt); + + ar->aggr_cntxt = NULL; + + if (test_bit(NETDEV_REGISTERED, &ar->flag)) { + unregister_netdev(ndev); + clear_bit(NETDEV_REGISTERED, &ar->flag); + } + + free_netdev(ndev); +} + +struct net_device *ath6kl_interface_add(struct ath6kl *ar, char *name, + enum nl80211_iftype type) +{ + struct net_device *ndev; + struct wireless_dev *wdev; + + ndev = alloc_netdev(sizeof(*wdev), "wlan%d", ether_setup); + if (!ndev) + return NULL; + + wdev = netdev_priv(ndev); + ndev->ieee80211_ptr = wdev; + wdev->wiphy = ar->wiphy; + SET_NETDEV_DEV(ndev, wiphy_dev(wdev->wiphy)); + wdev->netdev = ndev; + wdev->iftype = type; + ar->wdev = wdev; + ar->net_dev = ndev; + + init_netdev(ndev); + + ath6kl_init_control_info(ar); + + /* TODO: Pass interface specific pointer instead of ar */ + if (ath6kl_init_if_data(ar, ndev)) + goto err; + + if (register_netdev(ndev)) + goto err; + + ar->sme_state = SME_DISCONNECTED; + set_bit(WLAN_ENABLED, &ar->flag); + ar->wlan_pwr_state = WLAN_POWER_STATE_ON; + set_bit(NETDEV_REGISTERED, &ar->flag); + + return ndev; + +err: + ath6kl_deinit_if_data(ar, ndev); + + return NULL; +} + +void ath6kl_deinit_ieee80211_hw(struct ath6kl *ar) +{ if (ar->scan_req) { cfg80211_scan_done(ar->scan_req, true); ar->scan_req = NULL; @@ -1990,5 +2095,4 @@ void ath6kl_cfg80211_deinit(struct ath6kl *ar) wiphy_unregister(ar->wiphy); wiphy_free(ar->wiphy); - kfree(wdev); } diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.h b/drivers/net/wireless/ath/ath6kl/cfg80211.h index a84adc249c61..5daf6859d691 100644 --- a/drivers/net/wireless/ath/ath6kl/cfg80211.h +++ b/drivers/net/wireless/ath/ath6kl/cfg80211.h @@ -17,8 +17,11 @@ #ifndef ATH6KL_CFG80211_H #define ATH6KL_CFG80211_H -struct wireless_dev *ath6kl_cfg80211_init(struct device *dev); -void ath6kl_cfg80211_deinit(struct ath6kl *ar); +struct net_device *ath6kl_interface_add(struct ath6kl *ar, char *name, + enum nl80211_iftype type); +int ath6kl_register_ieee80211_hw(struct ath6kl *ar); +struct ath6kl *ath6kl_core_alloc(struct device *dev); +void ath6kl_deinit_ieee80211_hw(struct ath6kl *ar); void ath6kl_cfg80211_scan_complete_event(struct ath6kl *ar, int status); diff --git a/drivers/net/wireless/ath/ath6kl/core.h b/drivers/net/wireless/ath/ath6kl/core.h index fb5a32280a7b..f1b3c47f2c7e 100644 --- a/drivers/net/wireless/ath/ath6kl/core.h +++ b/drivers/net/wireless/ath/ath6kl/core.h @@ -642,4 +642,7 @@ void aggr_recv_addba_req_evt(struct ath6kl *ar, u8 tid, u16 seq_no, void ath6kl_wakeup_event(void *dev); void ath6kl_target_failure(struct ath6kl *ar); +void ath6kl_init_control_info(struct ath6kl *ar); +void ath6kl_deinit_if_data(struct ath6kl *ar, struct net_device *ndev); +void ath6kl_core_free(struct ath6kl *ar); #endif /* CORE_H */ diff --git a/drivers/net/wireless/ath/ath6kl/init.c b/drivers/net/wireless/ath/ath6kl/init.c index 1f1ed284cf40..0b8d6959c4a9 100644 --- a/drivers/net/wireless/ath/ath6kl/init.c +++ b/drivers/net/wireless/ath/ath6kl/init.c @@ -258,40 +258,12 @@ static int ath6kl_init_service_ep(struct ath6kl *ar) return 0; } -static void ath6kl_init_control_info(struct ath6kl *ar) +void ath6kl_init_control_info(struct ath6kl *ar) { - u8 ctr; - - clear_bit(WMI_ENABLED, &ar->flag); ath6kl_init_profile_info(ar); ar->def_txkey_index = 0; memset(ar->wep_key_list, 0, sizeof(ar->wep_key_list)); ar->ch_hint = 0; - ar->listen_intvl_t = A_DEFAULT_LISTEN_INTERVAL; - ar->listen_intvl_b = 0; - ar->tx_pwr = 0; - clear_bit(SKIP_SCAN, &ar->flag); - set_bit(WMM_ENABLED, &ar->flag); - ar->intra_bss = 1; - memset(&ar->sc_params, 0, sizeof(ar->sc_params)); - ar->sc_params.short_scan_ratio = WMI_SHORTSCANRATIO_DEFAULT; - ar->sc_params.scan_ctrl_flags = DEFAULT_SCAN_CTRL_FLAGS; - ar->lrssi_roam_threshold = DEF_LRSSI_ROAM_THRESHOLD; - - memset((u8 *)ar->sta_list, 0, - AP_MAX_NUM_STA * sizeof(struct ath6kl_sta)); - - spin_lock_init(&ar->mcastpsq_lock); - - /* Init the PS queues */ - for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { - spin_lock_init(&ar->sta_list[ctr].psq_lock); - skb_queue_head_init(&ar->sta_list[ctr].psq); - } - - skb_queue_head_init(&ar->mcastpsq); - - memcpy(ar->ap_country_code, DEF_AP_COUNTRY_CODE, 3); } /* @@ -553,61 +525,9 @@ int ath6kl_configure_target(struct ath6kl *ar) return 0; } -struct ath6kl *ath6kl_core_alloc(struct device *sdev) +void ath6kl_core_free(struct ath6kl *ar) { - struct net_device *dev; - struct ath6kl *ar; - struct wireless_dev *wdev; - - wdev = ath6kl_cfg80211_init(sdev); - if (!wdev) { - ath6kl_err("ath6kl_cfg80211_init failed\n"); - return NULL; - } - - ar = wdev_priv(wdev); - ar->dev = sdev; - ar->wdev = wdev; - wdev->iftype = NL80211_IFTYPE_STATION; - - if (ath6kl_debug_init(ar)) { - ath6kl_err("Failed to initialize debugfs\n"); - ath6kl_cfg80211_deinit(ar); - return NULL; - } - - dev = alloc_netdev(0, "wlan%d", ether_setup); - if (!dev) { - ath6kl_err("no memory for network device instance\n"); - ath6kl_cfg80211_deinit(ar); - return NULL; - } - - dev->ieee80211_ptr = wdev; - SET_NETDEV_DEV(dev, wiphy_dev(ar->wiphy)); - wdev->netdev = dev; - ar->sme_state = SME_DISCONNECTED; - - init_netdev(dev); - - ar->net_dev = dev; - set_bit(WLAN_ENABLED, &ar->flag); - - ar->wlan_pwr_state = WLAN_POWER_STATE_ON; - - spin_lock_init(&ar->lock); - - ath6kl_init_control_info(ar); - init_waitqueue_head(&ar->event_wq); - sema_init(&ar->sem, 1); - clear_bit(DESTROY_IN_PROGRESS, &ar->flag); - - INIT_LIST_HEAD(&ar->amsdu_rx_buffer_queue); - - setup_timer(&ar->disconnect_timer, disconnect_timer_handler, - (unsigned long) dev); - - return ar; + wiphy_free(ar->wiphy); } int ath6kl_unavail_ev(struct ath6kl *ar) @@ -1465,6 +1385,7 @@ static int ath6kl_init(struct ath6kl *ar) { int status = 0; s32 timeleft; + struct net_device *ndev; if (!ar) return -EIO; @@ -1486,6 +1407,29 @@ static int ath6kl_init(struct ath6kl *ar) ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi); + status = ath6kl_register_ieee80211_hw(ar); + if (status) + goto err_node_cleanup; + + status = ath6kl_debug_init(ar); + if (status) { + wiphy_unregister(ar->wiphy); + goto err_node_cleanup; + } + + /* Add an initial station interface */ + ndev = ath6kl_interface_add(ar, "wlan%d", NL80211_IFTYPE_STATION); + if (!ndev) { + ath6kl_err("Failed to instantiate a network device\n"); + status = -ENOMEM; + wiphy_unregister(ar->wiphy); + goto err_debug_init; + } + + + ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n", + __func__, ar->net_dev->name, ar->net_dev, ar); + /* * The reason we have to wait for the target here is that the * driver layer has to init BMI in order to set the host block @@ -1493,7 +1437,7 @@ static int ath6kl_init(struct ath6kl *ar) */ if (ath6kl_htc_wait_target(ar->htc_target)) { status = -EIO; - goto err_node_cleanup; + goto err_if_deinit; } if (ath6kl_init_service_ep(ar)) { @@ -1571,6 +1515,11 @@ static int ath6kl_init(struct ath6kl *ar) ath6kl_cleanup_amsdu_rxbufs(ar); err_cleanup_scatter: ath6kl_hif_cleanup_scatter(ar); +err_if_deinit: + ath6kl_deinit_if_data(ar, ndev); + wiphy_unregister(ar->wiphy); +err_debug_init: + ath6kl_debug_cleanup(ar); err_node_cleanup: ath6kl_wmi_shutdown(ar->wmi); clear_bit(WMI_ENABLED, &ar->flag); @@ -1616,13 +1565,6 @@ int ath6kl_core_init(struct ath6kl *ar) goto err_bmi_cleanup; } - ar->aggr_cntxt = aggr_init(ar->net_dev); - if (!ar->aggr_cntxt) { - ath6kl_err("failed to initialize aggr\n"); - ret = -ENOMEM; - goto err_htc_cleanup; - } - ret = ath6kl_fetch_firmwares(ar); if (ret) goto err_htc_cleanup; @@ -1635,19 +1577,6 @@ int ath6kl_core_init(struct ath6kl *ar) if (ret) goto err_htc_cleanup; - /* This runs the init function if registered */ - ret = register_netdev(ar->net_dev); - if (ret) { - ath6kl_err("register_netdev failed\n"); - ath6kl_destroy(ar->net_dev, 0); - return ret; - } - - set_bit(NETDEV_REGISTERED, &ar->flag); - - ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n", - __func__, ar->net_dev->name, ar->net_dev, ar); - return ret; err_htc_cleanup: @@ -1656,6 +1585,7 @@ int ath6kl_core_init(struct ath6kl *ar) ath6kl_bmi_cleanup(ar); err_wq: destroy_workqueue(ar->ath6kl_wq); + return ret; } @@ -1711,8 +1641,6 @@ void ath6kl_destroy(struct net_device *dev, unsigned int unregister) if (ar->htc_target) ath6kl_htc_cleanup(ar->htc_target); - aggr_module_destroy(ar->aggr_cntxt); - ath6kl_cookie_cleanup(ar); ath6kl_cleanup_amsdu_rxbufs(ar); @@ -1721,17 +1649,12 @@ void ath6kl_destroy(struct net_device *dev, unsigned int unregister) ath6kl_debug_cleanup(ar); - if (unregister && test_bit(NETDEV_REGISTERED, &ar->flag)) { - unregister_netdev(dev); - clear_bit(NETDEV_REGISTERED, &ar->flag); - } - - free_netdev(dev); + ath6kl_deinit_if_data(ar, dev); kfree(ar->fw_board); kfree(ar->fw_otp); kfree(ar->fw); kfree(ar->fw_patch); - ath6kl_cfg80211_deinit(ar); + ath6kl_deinit_ieee80211_hw(ar); } diff --git a/drivers/net/wireless/ath/ath6kl/sdio.c b/drivers/net/wireless/ath/ath6kl/sdio.c index 58e31f6b60e8..4e43878cf919 100644 --- a/drivers/net/wireless/ath/ath6kl/sdio.c +++ b/drivers/net/wireless/ath/ath6kl/sdio.c @@ -837,7 +837,7 @@ static int ath6kl_sdio_probe(struct sdio_func *func, ath6kl_err("Failed to enable 4-bit async irq mode %d\n", ret); sdio_release_host(func); - goto err_cfg80211; + goto err_core_alloc; } ath6kl_dbg(ATH6KL_DBG_SDIO, "4-bit async irq mode enabled\n"); @@ -850,7 +850,7 @@ static int ath6kl_sdio_probe(struct sdio_func *func, ret = ath6kl_sdio_power_on(ar_sdio); if (ret) - goto err_cfg80211; + goto err_core_alloc; sdio_claim_host(func); @@ -874,8 +874,8 @@ static int ath6kl_sdio_probe(struct sdio_func *func, err_off: ath6kl_sdio_power_off(ar_sdio); -err_cfg80211: - ath6kl_cfg80211_deinit(ar_sdio->ar); +err_core_alloc: + ath6kl_core_free(ar_sdio->ar); err_dma: kfree(ar_sdio->dma_buffer); err_hif: -- GitLab