| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Kalle Valo | 4948 | 67.55% | 34 | 30.36% |
| Grazvydas Ignotas | 613 | 8.37% | 10 | 8.93% |
| David Gnedt | 606 | 8.27% | 10 | 8.93% |
| Pali Rohár | 382 | 5.22% | 4 | 3.57% |
| Johannes Berg | 199 | 2.72% | 18 | 16.07% |
| Bob Copeland | 131 | 1.79% | 7 | 6.25% |
| John W. Linville | 116 | 1.58% | 3 | 2.68% |
| Jarkko Nikula | 96 | 1.31% | 2 | 1.79% |
| Juuso Oikarinen | 79 | 1.08% | 4 | 3.57% |
| Janne Ylalehto | 27 | 0.37% | 1 | 0.89% |
| Denis Carikli | 25 | 0.34% | 1 | 0.89% |
| Avraham Stern | 13 | 0.18% | 1 | 0.89% |
| David Spinadel | 12 | 0.16% | 1 | 0.89% |
| David-John Willis | 12 | 0.16% | 1 | 0.89% |
| Américo Wang | 8 | 0.11% | 1 | 0.89% |
| Jesper Juhl | 8 | 0.11% | 1 | 0.89% |
| Karl Beldan | 6 | 0.08% | 1 | 0.89% |
| Luciano Coelho | 6 | 0.08% | 1 | 0.89% |
| Thomas Huehn | 5 | 0.07% | 1 | 0.89% |
| Julia Lawall | 5 | 0.07% | 1 | 0.89% |
| Eliad Peller | 5 | 0.07% | 1 | 0.89% |
| Pavel Machek | 5 | 0.07% | 1 | 0.89% |
| Ben Hutchings | 5 | 0.07% | 1 | 0.89% |
| Tejun Heo | 3 | 0.04% | 1 | 0.89% |
| Jiri Slaby | 3 | 0.04% | 1 | 0.89% |
| Joe Perches | 2 | 0.03% | 1 | 0.89% |
| Colin Ian King | 2 | 0.03% | 1 | 0.89% |
| Ding Tianhong | 2 | 0.03% | 1 | 0.89% |
| Masanari Iida | 1 | 0.01% | 1 | 0.89% |
| Total | 7325 | 112 |
/* * This file is part of wl1251 * * Copyright (C) 2008-2009 Nokia Corporation * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA * */ #include <linux/module.h> #include <linux/interrupt.h> #include <linux/firmware.h> #include <linux/delay.h> #include <linux/irq.h> #include <linux/crc32.h> #include <linux/etherdevice.h> #include <linux/vmalloc.h> #include <linux/slab.h> #include <linux/netdevice.h> #include "wl1251.h" #include "wl12xx_80211.h" #include "reg.h" #include "io.h" #include "cmd.h" #include "event.h" #include "tx.h" #include "rx.h" #include "ps.h" #include "init.h" #include "debugfs.h" #include "boot.h" void wl1251_enable_interrupts(struct wl1251 *wl) { wl->if_ops->enable_irq(wl); } void wl1251_disable_interrupts(struct wl1251 *wl) { wl->if_ops->disable_irq(wl); } static int wl1251_power_off(struct wl1251 *wl) { return wl->if_ops->power(wl, false); } static int wl1251_power_on(struct wl1251 *wl) { return wl->if_ops->power(wl, true); } static int wl1251_fetch_firmware(struct wl1251 *wl) { const struct firmware *fw; struct device *dev = wiphy_dev(wl->hw->wiphy); int ret; ret = request_firmware(&fw, WL1251_FW_NAME, dev); if (ret < 0) { wl1251_error("could not get firmware: %d", ret); return ret; } if (fw->size % 4) { wl1251_error("firmware size is not multiple of 32 bits: %zu", fw->size); ret = -EILSEQ; goto out; } wl->fw_len = fw->size; wl->fw = vmalloc(wl->fw_len); if (!wl->fw) { wl1251_error("could not allocate memory for the firmware"); ret = -ENOMEM; goto out; } memcpy(wl->fw, fw->data, wl->fw_len); ret = 0; out: release_firmware(fw); return ret; } static int wl1251_fetch_nvs(struct wl1251 *wl) { const struct firmware *fw; struct device *dev = wiphy_dev(wl->hw->wiphy); int ret; ret = request_firmware(&fw, WL1251_NVS_NAME, dev); if (ret < 0) { wl1251_error("could not get nvs file: %d", ret); return ret; } if (fw->size % 4) { wl1251_error("nvs size is not multiple of 32 bits: %zu", fw->size); ret = -EILSEQ; goto out; } wl->nvs = kmemdup(fw->data, fw->size, GFP_KERNEL); if (!wl->nvs) { wl1251_error("could not allocate memory for the nvs file"); ret = -ENOMEM; goto out; } wl->nvs_len = fw->size; ret = 0; out: release_firmware(fw); return ret; } static void wl1251_fw_wakeup(struct wl1251 *wl) { u32 elp_reg; elp_reg = ELPCTRL_WAKE_UP; wl1251_write_elp(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg); elp_reg = wl1251_read_elp(wl, HW_ACCESS_ELP_CTRL_REG_ADDR); if (!(elp_reg & ELPCTRL_WLAN_READY)) wl1251_warning("WLAN not ready"); } static int wl1251_chip_wakeup(struct wl1251 *wl) { int ret; ret = wl1251_power_on(wl); if (ret < 0) return ret; msleep(WL1251_POWER_ON_SLEEP); wl->if_ops->reset(wl); /* We don't need a real memory partition here, because we only want * to use the registers at this point. */ wl1251_set_partition(wl, 0x00000000, 0x00000000, REGISTERS_BASE, REGISTERS_DOWN_SIZE); /* ELP module wake up */ wl1251_fw_wakeup(wl); /* whal_FwCtrl_BootSm() */ /* 0. read chip id from CHIP_ID */ wl->chip_id = wl1251_reg_read32(wl, CHIP_ID_B); /* 1. check if chip id is valid */ switch (wl->chip_id) { case CHIP_ID_1251_PG12: wl1251_debug(DEBUG_BOOT, "chip id 0x%x (1251 PG12)", wl->chip_id); break; case CHIP_ID_1251_PG11: wl1251_debug(DEBUG_BOOT, "chip id 0x%x (1251 PG11)", wl->chip_id); break; case CHIP_ID_1251_PG10: default: wl1251_error("unsupported chip id: 0x%x", wl->chip_id); ret = -ENODEV; goto out; } if (wl->fw == NULL) { ret = wl1251_fetch_firmware(wl); if (ret < 0) goto out; } out: return ret; } #define WL1251_IRQ_LOOP_COUNT 10 static void wl1251_irq_work(struct work_struct *work) { u32 intr, ctr = WL1251_IRQ_LOOP_COUNT; struct wl1251 *wl = container_of(work, struct wl1251, irq_work); int ret; mutex_lock(&wl->mutex); wl1251_debug(DEBUG_IRQ, "IRQ work"); if (wl->state == WL1251_STATE_OFF) goto out; ret = wl1251_ps_elp_wakeup(wl); if (ret < 0) goto out; wl1251_reg_write32(wl, ACX_REG_INTERRUPT_MASK, WL1251_ACX_INTR_ALL); intr = wl1251_reg_read32(wl, ACX_REG_INTERRUPT_CLEAR); wl1251_debug(DEBUG_IRQ, "intr: 0x%x", intr); do { if (wl->data_path) { wl->rx_counter = wl1251_mem_read32( wl, wl->data_path->rx_control_addr); /* We handle a frmware bug here */ switch ((wl->rx_counter - wl->rx_handled) & 0xf) { case 0: wl1251_debug(DEBUG_IRQ, "RX: FW and host in sync"); intr &= ~WL1251_ACX_INTR_RX0_DATA; intr &= ~WL1251_ACX_INTR_RX1_DATA; break; case 1: wl1251_debug(DEBUG_IRQ, "RX: FW +1"); intr |= WL1251_ACX_INTR_RX0_DATA; intr &= ~WL1251_ACX_INTR_RX1_DATA; break; case 2: wl1251_debug(DEBUG_IRQ, "RX: FW +2"); intr |= WL1251_ACX_INTR_RX0_DATA; intr |= WL1251_ACX_INTR_RX1_DATA; break; default: wl1251_warning( "RX: FW and host out of sync: %d", wl->rx_counter - wl->rx_handled); break; } wl->rx_handled = wl->rx_counter; wl1251_debug(DEBUG_IRQ, "RX counter: %d", wl->rx_counter); } intr &= wl->intr_mask; if (intr == 0) { wl1251_debug(DEBUG_IRQ, "INTR is 0"); goto out_sleep; } if (intr & WL1251_ACX_INTR_RX0_DATA) { wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_RX0_DATA"); wl1251_rx(wl); } if (intr & WL1251_ACX_INTR_RX1_DATA) { wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_RX1_DATA"); wl1251_rx(wl); } if (intr & WL1251_ACX_INTR_TX_RESULT) { wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_TX_RESULT"); wl1251_tx_complete(wl); } if (intr & WL1251_ACX_INTR_EVENT_A) { wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_EVENT_A"); wl1251_event_handle(wl, 0); } if (intr & WL1251_ACX_INTR_EVENT_B) { wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_EVENT_B"); wl1251_event_handle(wl, 1); } if (intr & WL1251_ACX_INTR_INIT_COMPLETE) wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_INIT_COMPLETE"); if (--ctr == 0) break; intr = wl1251_reg_read32(wl, ACX_REG_INTERRUPT_CLEAR); } while (intr); out_sleep: wl1251_reg_write32(wl, ACX_REG_INTERRUPT_MASK, ~(wl->intr_mask)); wl1251_ps_elp_sleep(wl); out: mutex_unlock(&wl->mutex); } static int wl1251_join(struct wl1251 *wl, u8 bss_type, u8 channel, u16 beacon_interval, u8 dtim_period) { int ret; ret = wl1251_acx_frame_rates(wl, DEFAULT_HW_GEN_TX_RATE, DEFAULT_HW_GEN_MODULATION_TYPE, wl->tx_mgmt_frm_rate, wl->tx_mgmt_frm_mod); if (ret < 0) goto out; /* * Join command applies filters, and if we are not associated, * BSSID filter must be disabled for association to work. */ if (is_zero_ether_addr(wl->bssid)) wl->rx_config &= ~CFG_BSSID_FILTER_EN; ret = wl1251_cmd_join(wl, bss_type, channel, beacon_interval, dtim_period); if (ret < 0) goto out; ret = wl1251_event_wait(wl, JOIN_EVENT_COMPLETE_ID, 100); if (ret < 0) wl1251_warning("join timeout"); out: return ret; } static void wl1251_op_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control, struct sk_buff *skb) { struct wl1251 *wl = hw->priv; unsigned long flags; skb_queue_tail(&wl->tx_queue, skb); /* * The chip specific setup must run before the first TX packet - * before that, the tx_work will not be initialized! */ ieee80211_queue_work(wl->hw, &wl->tx_work); /* * The workqueue is slow to process the tx_queue and we need stop * the queue here, otherwise the queue will get too long. */ if (skb_queue_len(&wl->tx_queue) >= WL1251_TX_QUEUE_HIGH_WATERMARK) { wl1251_debug(DEBUG_TX, "op_tx: tx_queue full, stop queues"); spin_lock_irqsave(&wl->wl_lock, flags); ieee80211_stop_queues(wl->hw); wl->tx_queue_stopped = true; spin_unlock_irqrestore(&wl->wl_lock, flags); } } static int wl1251_op_start(struct ieee80211_hw *hw) { struct wl1251 *wl = hw->priv; struct wiphy *wiphy = hw->wiphy; int ret = 0; wl1251_debug(DEBUG_MAC80211, "mac80211 start"); mutex_lock(&wl->mutex); if (wl->state != WL1251_STATE_OFF) { wl1251_error("cannot start because not in off state: %d", wl->state); ret = -EBUSY; goto out; } ret = wl1251_chip_wakeup(wl); if (ret < 0) goto out; ret = wl1251_boot(wl); if (ret < 0) goto out; ret = wl1251_hw_init(wl); if (ret < 0) goto out; ret = wl1251_acx_station_id(wl); if (ret < 0) goto out; wl->state = WL1251_STATE_ON; wl1251_info("firmware booted (%s)", wl->fw_ver); /* update hw/fw version info in wiphy struct */ wiphy->hw_version = wl->chip_id; strncpy(wiphy->fw_version, wl->fw_ver, sizeof(wiphy->fw_version)); out: if (ret < 0) wl1251_power_off(wl); mutex_unlock(&wl->mutex); return ret; } static void wl1251_op_stop(struct ieee80211_hw *hw) { struct wl1251 *wl = hw->priv; wl1251_info("down"); wl1251_debug(DEBUG_MAC80211, "mac80211 stop"); mutex_lock(&wl->mutex); WARN_ON(wl->state != WL1251_STATE_ON); if (wl->scanning) { struct cfg80211_scan_info info = { .aborted = true, }; ieee80211_scan_completed(wl->hw, &info); wl->scanning = false; } wl->state = WL1251_STATE_OFF; wl1251_disable_interrupts(wl); mutex_unlock(&wl->mutex); cancel_work_sync(&wl->irq_work); cancel_work_sync(&wl->tx_work); cancel_delayed_work_sync(&wl->elp_work); mutex_lock(&wl->mutex); /* let's notify MAC80211 about the remaining pending TX frames */ wl1251_tx_flush(wl); wl1251_power_off(wl); eth_zero_addr(wl->bssid); wl->listen_int = 1; wl->bss_type = MAX_BSS_TYPE; wl->data_in_count = 0; wl->rx_counter = 0; wl->rx_handled = 0; wl->rx_current_buffer = 0; wl->rx_last_id = 0; wl->next_tx_complete = 0; wl->elp = false; wl->station_mode = STATION_ACTIVE_MODE; wl->psm_entry_retry = 0; wl->tx_queue_stopped = false; wl->power_level = WL1251_DEFAULT_POWER_LEVEL; wl->rssi_thold = 0; wl->channel = WL1251_DEFAULT_CHANNEL; wl->monitor_present = false; wl->joined = false; wl1251_debugfs_reset(wl); mutex_unlock(&wl->mutex); } static int wl1251_op_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { struct wl1251 *wl = hw->priv; int ret = 0; vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | IEEE80211_VIF_SUPPORTS_UAPSD | IEEE80211_VIF_SUPPORTS_CQM_RSSI; wl1251_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %pM", vif->type, vif->addr); mutex_lock(&wl->mutex); if (wl->vif) { ret = -EBUSY; goto out; } wl->vif = vif; switch (vif->type) { case NL80211_IFTYPE_STATION: wl->bss_type = BSS_TYPE_STA_BSS; break; case NL80211_IFTYPE_ADHOC: wl->bss_type = BSS_TYPE_IBSS; break; default: ret = -EOPNOTSUPP; goto out; } if (!ether_addr_equal_unaligned(wl->mac_addr, vif->addr)) { memcpy(wl->mac_addr, vif->addr, ETH_ALEN); SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr); ret = wl1251_acx_station_id(wl); if (ret < 0) goto out; } out: mutex_unlock(&wl->mutex); return ret; } static void wl1251_op_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { struct wl1251 *wl = hw->priv; mutex_lock(&wl->mutex); wl1251_debug(DEBUG_MAC80211, "mac80211 remove interface"); wl->vif = NULL; eth_zero_addr(wl->bssid); mutex_unlock(&wl->mutex); } static int wl1251_build_null_data(struct wl1251 *wl) { struct sk_buff *skb = NULL; int size; void *ptr; int ret = -ENOMEM; if (wl->bss_type == BSS_TYPE_IBSS) { size = sizeof(struct wl12xx_null_data_template); ptr = NULL; } else { skb = ieee80211_nullfunc_get(wl->hw, wl->vif, false); if (!skb) goto out; size = skb->len; ptr = skb->data; } ret = wl1251_cmd_template_set(wl, CMD_NULL_DATA, ptr, size); out: dev_kfree_skb(skb); if (ret) wl1251_warning("cmd buld null data failed: %d", ret); return ret; } static int wl1251_build_qos_null_data(struct wl1251 *wl) { struct ieee80211_qos_hdr template; memset(&template, 0, sizeof(template)); memcpy(template.addr1, wl->bssid, ETH_ALEN); memcpy(template.addr2, wl->mac_addr, ETH_ALEN); memcpy(template.addr3, wl->bssid, ETH_ALEN); template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC | IEEE80211_FCTL_TODS); /* FIXME: not sure what priority to use here */ template.qos_ctrl = cpu_to_le16(0); return wl1251_cmd_template_set(wl, CMD_QOS_NULL_DATA, &template, sizeof(template)); } static bool wl1251_can_do_pm(struct ieee80211_conf *conf, struct wl1251 *wl) { return (conf->flags & IEEE80211_CONF_PS) && !wl->monitor_present; } static int wl1251_op_config(struct ieee80211_hw *hw, u32 changed) { struct wl1251 *wl = hw->priv; struct ieee80211_conf *conf = &hw->conf; int channel, ret = 0; channel = ieee80211_frequency_to_channel( conf->chandef.chan->center_freq); wl1251_debug(DEBUG_MAC80211, "mac80211 config ch %d monitor %s psm %s power %d", channel, conf->flags & IEEE80211_CONF_MONITOR ? "on" : "off", conf->flags & IEEE80211_CONF_PS ? "on" : "off", conf->power_level); mutex_lock(&wl->mutex); ret = wl1251_ps_elp_wakeup(wl); if (ret < 0) goto out; if (changed & IEEE80211_CONF_CHANGE_MONITOR) { u32 mode; if (conf->flags & IEEE80211_CONF_MONITOR) { wl->monitor_present = true; mode = DF_SNIFF_MODE_ENABLE | DF_ENCRYPTION_DISABLE; } else { wl->monitor_present = false; mode = 0; } ret = wl1251_acx_feature_cfg(wl, mode); if (ret < 0) goto out_sleep; } if (channel != wl->channel) { wl->channel = channel; /* * Use ENABLE_RX command for channel switching when no * interface is present (monitor mode only). * This leaves the tx path disabled in firmware, whereas * the usual JOIN command seems to transmit some frames * at firmware level. */ if (wl->vif == NULL) { wl->joined = false; ret = wl1251_cmd_data_path_rx(wl, wl->channel, 1); } else { ret = wl1251_join(wl, wl->bss_type, wl->channel, wl->beacon_int, wl->dtim_period); } if (ret < 0) goto out_sleep; } if (wl1251_can_do_pm(conf, wl) && !wl->psm_requested) { wl1251_debug(DEBUG_PSM, "psm enabled"); wl->psm_requested = true; wl->dtim_period = conf->ps_dtim_period; ret = wl1251_acx_wr_tbtt_and_dtim(wl, wl->beacon_int, wl->dtim_period); /* * mac80211 enables PSM only if we're already associated. */ ret = wl1251_ps_set_mode(wl, STATION_POWER_SAVE_MODE); if (ret < 0) goto out_sleep; } else if (!wl1251_can_do_pm(conf, wl) && wl->psm_requested) { wl1251_debug(DEBUG_PSM, "psm disabled"); wl->psm_requested = false; if (wl->station_mode != STATION_ACTIVE_MODE) { ret = wl1251_ps_set_mode(wl, STATION_ACTIVE_MODE); if (ret < 0) goto out_sleep; } } if (changed & IEEE80211_CONF_CHANGE_IDLE && !wl->scanning) { if (conf->flags & IEEE80211_CONF_IDLE) { ret = wl1251_ps_set_mode(wl, STATION_IDLE); if (ret < 0) goto out_sleep; } else { ret = wl1251_ps_set_mode(wl, STATION_ACTIVE_MODE); if (ret < 0) goto out_sleep; ret = wl1251_join(wl, wl->bss_type, wl->channel, wl->beacon_int, wl->dtim_period); if (ret < 0) goto out_sleep; } } if (conf->power_level != wl->power_level) { ret = wl1251_acx_tx_power(wl, conf->power_level); if (ret < 0) goto out_sleep; wl->power_level = conf->power_level; } out_sleep: wl1251_ps_elp_sleep(wl); out: mutex_unlock(&wl->mutex); return ret; } struct wl1251_filter_params { bool enabled; int mc_list_length; u8 mc_list[ACX_MC_ADDRESS_GROUP_MAX][ETH_ALEN]; }; static u64 wl1251_op_prepare_multicast(struct ieee80211_hw *hw, struct netdev_hw_addr_list *mc_list) { struct wl1251_filter_params *fp; struct netdev_hw_addr *ha; struct wl1251 *wl = hw->priv; if (unlikely(wl->state == WL1251_STATE_OFF)) return 0; fp = kzalloc(sizeof(*fp), GFP_ATOMIC); if (!fp) { wl1251_error("Out of memory setting filters."); return 0; } /* update multicast filtering parameters */ fp->mc_list_length = 0; if (netdev_hw_addr_list_count(mc_list) > ACX_MC_ADDRESS_GROUP_MAX) { fp->enabled = false; } else { fp->enabled = true; netdev_hw_addr_list_for_each(ha, mc_list) { memcpy(fp->mc_list[fp->mc_list_length], ha->addr, ETH_ALEN); fp->mc_list_length++; } } return (u64)(unsigned long)fp; } #define WL1251_SUPPORTED_FILTERS (FIF_ALLMULTI | \ FIF_FCSFAIL | \ FIF_BCN_PRBRESP_PROMISC | \ FIF_CONTROL | \ FIF_OTHER_BSS | \ FIF_PROBE_REQ) static void wl1251_op_configure_filter(struct ieee80211_hw *hw, unsigned int changed, unsigned int *total, u64 multicast) { struct wl1251_filter_params *fp = (void *)(unsigned long)multicast; struct wl1251 *wl = hw->priv; int ret; wl1251_debug(DEBUG_MAC80211, "mac80211 configure filter"); *total &= WL1251_SUPPORTED_FILTERS; changed &= WL1251_SUPPORTED_FILTERS; if (changed == 0) { /* no filters which we support changed */ kfree(fp); return; } mutex_lock(&wl->mutex); wl->rx_config = WL1251_DEFAULT_RX_CONFIG; wl->rx_filter = WL1251_DEFAULT_RX_FILTER; if (*total & FIF_ALLMULTI) /* * CFG_MC_FILTER_EN in rx_config needs to be 0 to receive * all multicast frames */ wl->rx_config &= ~CFG_MC_FILTER_EN; if (*total & FIF_FCSFAIL) wl->rx_filter |= CFG_RX_FCS_ERROR; if (*total & FIF_BCN_PRBRESP_PROMISC) { wl->rx_config &= ~CFG_BSSID_FILTER_EN; wl->rx_config &= ~CFG_SSID_FILTER_EN; } if (*total & FIF_CONTROL) wl->rx_filter |= CFG_RX_CTL_EN; if (*total & FIF_OTHER_BSS || is_zero_ether_addr(wl->bssid)) wl->rx_config &= ~CFG_BSSID_FILTER_EN; if (*total & FIF_PROBE_REQ) wl->rx_filter |= CFG_RX_PREQ_EN; if (wl->state == WL1251_STATE_OFF) goto out; ret = wl1251_ps_elp_wakeup(wl); if (ret < 0) goto out; if (*total & FIF_ALLMULTI) ret = wl1251_acx_group_address_tbl(wl, false, NULL, 0); else if (fp) ret = wl1251_acx_group_address_tbl(wl, fp->enabled, fp->mc_list, fp->mc_list_length); if (ret < 0) goto out; /* send filters to firmware */ wl1251_acx_rx_config(wl, wl->rx_config, wl->rx_filter); wl1251_ps_elp_sleep(wl); out: mutex_unlock(&wl->mutex); kfree(fp); } /* HW encryption */ static int wl1251_set_key_type(struct wl1251 *wl, struct wl1251_cmd_set_keys *key, enum set_key_cmd cmd, struct ieee80211_key_conf *mac80211_key, const u8 *addr) { switch (mac80211_key->cipher) { case WLAN_CIPHER_SUITE_WEP40: case WLAN_CIPHER_SUITE_WEP104: if (is_broadcast_ether_addr(addr)) key->key_type = KEY_WEP_DEFAULT; else key->key_type = KEY_WEP_ADDR; mac80211_key->hw_key_idx = mac80211_key->keyidx; break; case WLAN_CIPHER_SUITE_TKIP: if (is_broadcast_ether_addr(addr)) key->key_type = KEY_TKIP_MIC_GROUP; else key->key_type = KEY_TKIP_MIC_PAIRWISE; mac80211_key->hw_key_idx = mac80211_key->keyidx; break; case WLAN_CIPHER_SUITE_CCMP: if (is_broadcast_ether_addr(addr)) key->key_type = KEY_AES_GROUP; else key->key_type = KEY_AES_PAIRWISE; mac80211_key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; break; default: wl1251_error("Unknown key cipher 0x%x", mac80211_key->cipher); return -EOPNOTSUPP; } return 0; } static int wl1251_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, struct ieee80211_vif *vif, struct ieee80211_sta *sta, struct ieee80211_key_conf *key) { struct wl1251 *wl = hw->priv; struct wl1251_cmd_set_keys *wl_cmd; const u8 *addr; int ret; static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; wl1251_debug(DEBUG_MAC80211, "mac80211 set key"); wl_cmd = kzalloc(sizeof(*wl_cmd), GFP_KERNEL); if (!wl_cmd) { ret = -ENOMEM; goto out; } addr = sta ? sta->addr : bcast_addr; wl1251_debug(DEBUG_CRYPT, "CMD: 0x%x", cmd); wl1251_dump(DEBUG_CRYPT, "ADDR: ", addr, ETH_ALEN); wl1251_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x", key->cipher, key->keyidx, key->keylen, key->flags); wl1251_dump(DEBUG_CRYPT, "KEY: ", key->key, key->keylen); if (is_zero_ether_addr(addr)) { /* We dont support TX only encryption */ ret = -EOPNOTSUPP; goto out; } mutex_lock(&wl->mutex); switch (cmd) { case SET_KEY: if (wl->monitor_present) { ret = -EOPNOTSUPP; goto out_unlock; } wl_cmd->key_action = KEY_ADD_OR_REPLACE; break; case DISABLE_KEY: wl_cmd->key_action = KEY_REMOVE; break; default: wl1251_error("Unsupported key cmd 0x%x", cmd); break; } ret = wl1251_ps_elp_wakeup(wl); if (ret < 0) goto out_unlock; ret = wl1251_set_key_type(wl, wl_cmd, cmd, key, addr); if (ret < 0) { wl1251_error("Set KEY type failed"); goto out_sleep; } if (wl_cmd->key_type != KEY_WEP_DEFAULT) memcpy(wl_cmd->addr, addr, ETH_ALEN); if ((wl_cmd->key_type == KEY_TKIP_MIC_GROUP) || (wl_cmd->key_type == KEY_TKIP_MIC_PAIRWISE)) { /* * We get the key in the following form: * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) * but the target is expecting: * TKIP - RX MIC - TX MIC */ memcpy(wl_cmd->key, key->key, 16); memcpy(wl_cmd->key + 16, key->key + 24, 8); memcpy(wl_cmd->key + 24, key->key + 16, 8); } else { memcpy(wl_cmd->key, key->key, key->keylen); } wl_cmd->key_size = key->keylen; wl_cmd->id = key->keyidx; wl_cmd->ssid_profile = 0; wl1251_dump(DEBUG_CRYPT, "TARGET KEY: ", wl_cmd, sizeof(*wl_cmd)); ret = wl1251_cmd_send(wl, CMD_SET_KEYS, wl_cmd, sizeof(*wl_cmd)); if (ret < 0) { wl1251_warning("could not set keys"); goto out_sleep; } out_sleep: wl1251_ps_elp_sleep(wl); out_unlock: mutex_unlock(&wl->mutex); out: kfree(wl_cmd); return ret; } static int wl1251_op_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_scan_request *hw_req) { struct cfg80211_scan_request *req = &hw_req->req; struct wl1251 *wl = hw->priv; struct sk_buff *skb; size_t ssid_len = 0; u8 *ssid = NULL; int ret; wl1251_debug(DEBUG_MAC80211, "mac80211 hw scan"); if (req->n_ssids) { ssid = req->ssids[0].ssid; ssid_len = req->ssids[0].ssid_len; } mutex_lock(&wl->mutex); if (wl->scanning) { wl1251_debug(DEBUG_SCAN, "scan already in progress"); ret = -EINVAL; goto out; } ret = wl1251_ps_elp_wakeup(wl); if (ret < 0) goto out; if (hw->conf.flags & IEEE80211_CONF_IDLE) { ret = wl1251_ps_set_mode(wl, STATION_ACTIVE_MODE); if (ret < 0) goto out_sleep; ret = wl1251_join(wl, wl->bss_type, wl->channel, wl->beacon_int, wl->dtim_period); if (ret < 0) goto out_sleep; } skb = ieee80211_probereq_get(wl->hw, wl->vif->addr, ssid, ssid_len, req->ie_len); if (!skb) { ret = -ENOMEM; goto out_idle; } if (req->ie_len) skb_put_data(skb, req->ie, req->ie_len); ret = wl1251_cmd_template_set(wl, CMD_PROBE_REQ, skb->data, skb->len); dev_kfree_skb(skb); if (ret < 0) goto out_idle; ret = wl1251_cmd_trigger_scan_to(wl, 0); if (ret < 0) goto out_idle; wl->scanning = true; ret = wl1251_cmd_scan(wl, ssid, ssid_len, req->channels, req->n_channels, WL1251_SCAN_NUM_PROBES); if (ret < 0) { wl1251_debug(DEBUG_SCAN, "scan failed %d", ret); wl->scanning = false; goto out_idle; } goto out_sleep; out_idle: if (hw->conf.flags & IEEE80211_CONF_IDLE) ret = wl1251_ps_set_mode(wl, STATION_IDLE); out_sleep: wl1251_ps_elp_sleep(wl); out: mutex_unlock(&wl->mutex); return ret; } static int wl1251_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value) { struct wl1251 *wl = hw->priv; int ret; mutex_lock(&wl->mutex); ret = wl1251_ps_elp_wakeup(wl); if (ret < 0) goto out; ret = wl1251_acx_rts_threshold(wl, (u16) value); if (ret < 0) wl1251_warning("wl1251_op_set_rts_threshold failed: %d", ret); wl1251_ps_elp_sleep(wl); out: mutex_unlock(&wl->mutex); return ret; } static void wl1251_op_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_bss_conf *bss_conf, u32 changed) { struct wl1251 *wl = hw->priv; struct sk_buff *beacon, *skb; bool enable; int ret; wl1251_debug(DEBUG_MAC80211, "mac80211 bss info changed"); mutex_lock(&wl->mutex); ret = wl1251_ps_elp_wakeup(wl); if (ret < 0) goto out; if (changed & BSS_CHANGED_CQM) { ret = wl1251_acx_low_rssi(wl, bss_conf->cqm_rssi_thold, WL1251_DEFAULT_LOW_RSSI_WEIGHT, WL1251_DEFAULT_LOW_RSSI_DEPTH, WL1251_ACX_LOW_RSSI_TYPE_EDGE); if (ret < 0) goto out; wl->rssi_thold = bss_conf->cqm_rssi_thold; } if ((changed & BSS_CHANGED_BSSID) && memcmp(wl->bssid, bss_conf->bssid, ETH_ALEN)) { memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN); if (!is_zero_ether_addr(wl->bssid)) { ret = wl1251_build_null_data(wl); if (ret < 0) goto out_sleep; ret = wl1251_build_qos_null_data(wl); if (ret < 0) goto out_sleep; ret = wl1251_join(wl, wl->bss_type, wl->channel, wl->beacon_int, wl->dtim_period); if (ret < 0) goto out_sleep; } } if (changed & BSS_CHANGED_ASSOC) { if (bss_conf->assoc) { wl->beacon_int = bss_conf->beacon_int; skb = ieee80211_pspoll_get(wl->hw, wl->vif); if (!skb) goto out_sleep; ret = wl1251_cmd_template_set(wl, CMD_PS_POLL, skb->data, skb->len); dev_kfree_skb(skb); if (ret < 0) goto out_sleep; ret = wl1251_acx_aid(wl, bss_conf->aid); if (ret < 0) goto out_sleep; } else { /* use defaults when not associated */ wl->beacon_int = WL1251_DEFAULT_BEACON_INT; wl->dtim_period = WL1251_DEFAULT_DTIM_PERIOD; } } if (changed & BSS_CHANGED_ERP_SLOT) { if (bss_conf->use_short_slot) ret = wl1251_acx_slot(wl, SLOT_TIME_SHORT); else ret = wl1251_acx_slot(wl, SLOT_TIME_LONG); if (ret < 0) { wl1251_warning("Set slot time failed %d", ret); goto out_sleep; } } if (changed & BSS_CHANGED_ERP_PREAMBLE) { if (bss_conf->use_short_preamble) wl1251_acx_set_preamble(wl, ACX_PREAMBLE_SHORT); else wl1251_acx_set_preamble(wl, ACX_PREAMBLE_LONG); } if (changed & BSS_CHANGED_ERP_CTS_PROT) { if (bss_conf->use_cts_prot) ret = wl1251_acx_cts_protect(wl, CTSPROTECT_ENABLE); else ret = wl1251_acx_cts_protect(wl, CTSPROTECT_DISABLE); if (ret < 0) { wl1251_warning("Set ctsprotect failed %d", ret); goto out_sleep; } } if (changed & BSS_CHANGED_ARP_FILTER) { __be32 addr = bss_conf->arp_addr_list[0]; WARN_ON(wl->bss_type != BSS_TYPE_STA_BSS); enable = bss_conf->arp_addr_cnt == 1 && bss_conf->assoc; ret = wl1251_acx_arp_ip_filter(wl, enable, addr); if (ret < 0) goto out_sleep; } if (changed & BSS_CHANGED_BEACON) { beacon = ieee80211_beacon_get(hw, vif); if (!beacon) goto out_sleep; ret = wl1251_cmd_template_set(wl, CMD_BEACON, beacon->data, beacon->len); if (ret < 0) { dev_kfree_skb(beacon); goto out_sleep; } ret = wl1251_cmd_template_set(wl, CMD_PROBE_RESP, beacon->data, beacon->len); dev_kfree_skb(beacon); if (ret < 0) goto out_sleep; ret = wl1251_join(wl, wl->bss_type, wl->channel, wl->beacon_int, wl->dtim_period); if (ret < 0) goto out_sleep; } out_sleep: wl1251_ps_elp_sleep(wl); out: mutex_unlock(&wl->mutex); } /* can't be const, mac80211 writes to this */ static struct ieee80211_rate wl1251_rates[] = { { .bitrate = 10, .hw_value = 0x1, .hw_value_short = 0x1, }, { .bitrate = 20, .hw_value = 0x2, .hw_value_short = 0x2, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, { .bitrate = 55, .hw_value = 0x4, .hw_value_short = 0x4, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, { .bitrate = 110, .hw_value = 0x20, .hw_value_short = 0x20, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, { .bitrate = 60, .hw_value = 0x8, .hw_value_short = 0x8, }, { .bitrate = 90, .hw_value = 0x10, .hw_value_short = 0x10, }, { .bitrate = 120, .hw_value = 0x40, .hw_value_short = 0x40, }, { .bitrate = 180, .hw_value = 0x80, .hw_value_short = 0x80, }, { .bitrate = 240, .hw_value = 0x200, .hw_value_short = 0x200, }, { .bitrate = 360, .hw_value = 0x400, .hw_value_short = 0x400, }, { .bitrate = 480, .hw_value = 0x800, .hw_value_short = 0x800, }, { .bitrate = 540, .hw_value = 0x1000, .hw_value_short = 0x1000, }, }; /* can't be const, mac80211 writes to this */ static struct ieee80211_channel wl1251_channels[] = { { .hw_value = 1, .center_freq = 2412}, { .hw_value = 2, .center_freq = 2417}, { .hw_value = 3, .center_freq = 2422}, { .hw_value = 4, .center_freq = 2427}, { .hw_value = 5, .center_freq = 2432}, { .hw_value = 6, .center_freq = 2437}, { .hw_value = 7, .center_freq = 2442}, { .hw_value = 8, .center_freq = 2447}, { .hw_value = 9, .center_freq = 2452}, { .hw_value = 10, .center_freq = 2457}, { .hw_value = 11, .center_freq = 2462}, { .hw_value = 12, .center_freq = 2467}, { .hw_value = 13, .center_freq = 2472}, }; static int wl1251_op_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue, const struct ieee80211_tx_queue_params *params) { enum wl1251_acx_ps_scheme ps_scheme; struct wl1251 *wl = hw->priv; int ret; mutex_lock(&wl->mutex); wl1251_debug(DEBUG_MAC80211, "mac80211 conf tx %d", queue); ret = wl1251_ps_elp_wakeup(wl); if (ret < 0) goto out; /* mac80211 uses units of 32 usec */ ret = wl1251_acx_ac_cfg(wl, wl1251_tx_get_queue(queue), params->cw_min, params->cw_max, params->aifs, params->txop * 32); if (ret < 0) goto out_sleep; if (params->uapsd) ps_scheme = WL1251_ACX_PS_SCHEME_UPSD_TRIGGER; else ps_scheme = WL1251_ACX_PS_SCHEME_LEGACY; ret = wl1251_acx_tid_cfg(wl, wl1251_tx_get_queue(queue), CHANNEL_TYPE_EDCF, wl1251_tx_get_queue(queue), ps_scheme, WL1251_ACX_ACK_POLICY_LEGACY); if (ret < 0) goto out_sleep; out_sleep: wl1251_ps_elp_sleep(wl); out: mutex_unlock(&wl->mutex); return ret; } static int wl1251_op_get_survey(struct ieee80211_hw *hw, int idx, struct survey_info *survey) { struct wl1251 *wl = hw->priv; struct ieee80211_conf *conf = &hw->conf; if (idx != 0) return -ENOENT; survey->channel = conf->chandef.chan; survey->filled = SURVEY_INFO_NOISE_DBM; survey->noise = wl->noise; return 0; } /* can't be const, mac80211 writes to this */ static struct ieee80211_supported_band wl1251_band_2ghz = { .channels = wl1251_channels, .n_channels = ARRAY_SIZE(wl1251_channels), .bitrates = wl1251_rates, .n_bitrates = ARRAY_SIZE(wl1251_rates), }; static const struct ieee80211_ops wl1251_ops = { .start = wl1251_op_start, .stop = wl1251_op_stop, .add_interface = wl1251_op_add_interface, .remove_interface = wl1251_op_remove_interface, .config = wl1251_op_config, .prepare_multicast = wl1251_op_prepare_multicast, .configure_filter = wl1251_op_configure_filter, .tx = wl1251_op_tx, .set_key = wl1251_op_set_key, .hw_scan = wl1251_op_hw_scan, .bss_info_changed = wl1251_op_bss_info_changed, .set_rts_threshold = wl1251_op_set_rts_threshold, .conf_tx = wl1251_op_conf_tx, .get_survey = wl1251_op_get_survey, }; static int wl1251_read_eeprom_byte(struct wl1251 *wl, off_t offset, u8 *data) { unsigned long timeout; wl1251_reg_write32(wl, EE_ADDR, offset); wl1251_reg_write32(wl, EE_CTL, EE_CTL_READ); /* EE_CTL_READ clears when data is ready */ timeout = jiffies + msecs_to_jiffies(100); while (1) { if (!(wl1251_reg_read32(wl, EE_CTL) & EE_CTL_READ)) break; if (time_after(jiffies, timeout)) return -ETIMEDOUT; msleep(1); } *data = wl1251_reg_read32(wl, EE_DATA); return 0; } static int wl1251_read_eeprom(struct wl1251 *wl, off_t offset, u8 *data, size_t len) { size_t i; int ret; wl1251_reg_write32(wl, EE_START, 0); for (i = 0; i < len; i++) { ret = wl1251_read_eeprom_byte(wl, offset + i, &data[i]); if (ret < 0) return ret; } return 0; } static int wl1251_read_eeprom_mac(struct wl1251 *wl) { u8 mac[ETH_ALEN]; int i, ret; wl1251_set_partition(wl, 0, 0, REGISTERS_BASE, REGISTERS_DOWN_SIZE); ret = wl1251_read_eeprom(wl, 0x1c, mac, sizeof(mac)); if (ret < 0) { wl1251_warning("failed to read MAC address from EEPROM"); return ret; } /* MAC is stored in reverse order */ for (i = 0; i < ETH_ALEN; i++) wl->mac_addr[i] = mac[ETH_ALEN - i - 1]; return 0; } #define NVS_OFF_MAC_LEN 0x19 #define NVS_OFF_MAC_ADDR_LO 0x1a #define NVS_OFF_MAC_ADDR_HI 0x1b #define NVS_OFF_MAC_DATA 0x1c static int wl1251_check_nvs_mac(struct wl1251 *wl) { if (wl->nvs_len < 0x24) return -ENODATA; /* length is 2 and data address is 0x546c (ANDed with 0xfffe) */ if (wl->nvs[NVS_OFF_MAC_LEN] != 2 || wl->nvs[NVS_OFF_MAC_ADDR_LO] != 0x6d || wl->nvs[NVS_OFF_MAC_ADDR_HI] != 0x54) return -EINVAL; return 0; } static int wl1251_read_nvs_mac(struct wl1251 *wl) { u8 mac[ETH_ALEN]; int i, ret; ret = wl1251_check_nvs_mac(wl); if (ret) return ret; /* MAC is stored in reverse order */ for (i = 0; i < ETH_ALEN; i++) mac[i] = wl->nvs[NVS_OFF_MAC_DATA + ETH_ALEN - i - 1]; /* 00:00:20:07:03:09 is in example file wl1251-nvs.bin, so invalid */ if (ether_addr_equal_unaligned(mac, "\x00\x00\x20\x07\x03\x09")) return -EINVAL; memcpy(wl->mac_addr, mac, ETH_ALEN); return 0; } static int wl1251_write_nvs_mac(struct wl1251 *wl) { int i, ret; ret = wl1251_check_nvs_mac(wl); if (ret) return ret; /* MAC is stored in reverse order */ for (i = 0; i < ETH_ALEN; i++) wl->nvs[NVS_OFF_MAC_DATA + i] = wl->mac_addr[ETH_ALEN - i - 1]; return 0; } static int wl1251_register_hw(struct wl1251 *wl) { int ret; if (wl->mac80211_registered) return 0; SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr); ret = ieee80211_register_hw(wl->hw); if (ret < 0) { wl1251_error("unable to register mac80211 hw: %d", ret); return ret; } wl->mac80211_registered = true; wl1251_notice("loaded"); return 0; } int wl1251_init_ieee80211(struct wl1251 *wl) { int ret; /* The tx descriptor buffer and the TKIP space */ wl->hw->extra_tx_headroom = sizeof(struct tx_double_buffer_desc) + WL1251_TKIP_IV_SPACE; /* unit us */ /* FIXME: find a proper value */ ieee80211_hw_set(wl->hw, SIGNAL_DBM); ieee80211_hw_set(wl->hw, SUPPORTS_PS); wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC); wl->hw->wiphy->max_scan_ssids = 1; wl->hw->wiphy->bands[NL80211_BAND_2GHZ] = &wl1251_band_2ghz; wl->hw->queues = 4; if (wl->nvs == NULL && !wl->use_eeprom) { ret = wl1251_fetch_nvs(wl); if (ret < 0) goto out; } if (wl->use_eeprom) ret = wl1251_read_eeprom_mac(wl); else ret = wl1251_read_nvs_mac(wl); if (ret == 0 && !is_valid_ether_addr(wl->mac_addr)) ret = -EINVAL; if (ret < 0) { /* * In case our MAC address is not correctly set, * we use a random but Nokia MAC. */ static const u8 nokia_oui[3] = {0x00, 0x1f, 0xdf}; memcpy(wl->mac_addr, nokia_oui, 3); get_random_bytes(wl->mac_addr + 3, 3); if (!wl->use_eeprom) wl1251_write_nvs_mac(wl); wl1251_warning("MAC address in eeprom or nvs data is not valid"); wl1251_warning("Setting random MAC address: %pM", wl->mac_addr); } ret = wl1251_register_hw(wl); if (ret) goto out; wl1251_debugfs_init(wl); wl1251_notice("initialized"); ret = 0; out: return ret; } EXPORT_SYMBOL_GPL(wl1251_init_ieee80211); struct ieee80211_hw *wl1251_alloc_hw(void) { struct ieee80211_hw *hw; struct wl1251 *wl; int i; hw = ieee80211_alloc_hw(sizeof(*wl), &wl1251_ops); if (!hw) { wl1251_error("could not alloc ieee80211_hw"); return ERR_PTR(-ENOMEM); } wl = hw->priv; memset(wl, 0, sizeof(*wl)); wl->hw = hw; wl->data_in_count = 0; skb_queue_head_init(&wl->tx_queue); INIT_DELAYED_WORK(&wl->elp_work, wl1251_elp_work); wl->channel = WL1251_DEFAULT_CHANNEL; wl->monitor_present = false; wl->joined = false; wl->scanning = false; wl->bss_type = MAX_BSS_TYPE; wl->default_key = 0; wl->listen_int = 1; wl->rx_counter = 0; wl->rx_handled = 0; wl->rx_current_buffer = 0; wl->rx_last_id = 0; wl->rx_config = WL1251_DEFAULT_RX_CONFIG; wl->rx_filter = WL1251_DEFAULT_RX_FILTER; wl->elp = false; wl->station_mode = STATION_ACTIVE_MODE; wl->psm_requested = false; wl->psm_entry_retry = 0; wl->tx_queue_stopped = false; wl->power_level = WL1251_DEFAULT_POWER_LEVEL; wl->rssi_thold = 0; wl->beacon_int = WL1251_DEFAULT_BEACON_INT; wl->dtim_period = WL1251_DEFAULT_DTIM_PERIOD; wl->vif = NULL; for (i = 0; i < FW_TX_CMPLT_BLOCK_SIZE; i++) wl->tx_frames[i] = NULL; wl->next_tx_complete = 0; INIT_WORK(&wl->irq_work, wl1251_irq_work); INIT_WORK(&wl->tx_work, wl1251_tx_work); wl->state = WL1251_STATE_OFF; mutex_init(&wl->mutex); spin_lock_init(&wl->wl_lock); wl->tx_mgmt_frm_rate = DEFAULT_HW_GEN_TX_RATE; wl->tx_mgmt_frm_mod = DEFAULT_HW_GEN_MODULATION_TYPE; wl->rx_descriptor = kmalloc(sizeof(*wl->rx_descriptor), GFP_KERNEL); if (!wl->rx_descriptor) { wl1251_error("could not allocate memory for rx descriptor"); ieee80211_free_hw(hw); return ERR_PTR(-ENOMEM); } return hw; } EXPORT_SYMBOL_GPL(wl1251_alloc_hw); int wl1251_free_hw(struct wl1251 *wl) { ieee80211_unregister_hw(wl->hw); wl1251_debugfs_exit(wl); kfree(wl->target_mem_map); kfree(wl->data_path); vfree(wl->fw); wl->fw = NULL; kfree(wl->nvs); wl->nvs = NULL; kfree(wl->rx_descriptor); wl->rx_descriptor = NULL; ieee80211_free_hw(wl->hw); return 0; } EXPORT_SYMBOL_GPL(wl1251_free_hw); MODULE_DESCRIPTION("TI wl1251 Wireless LAN Driver Core"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Kalle Valo <kvalo@adurom.com>"); MODULE_FIRMWARE(WL1251_FW_NAME); MODULE_FIRMWARE(WL1251_NVS_NAME);
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