2
* Copyright (c) 2010 Broadcom Corporation
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#define __UNDEF_NO_VERSION__
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#include <linux/kernel.h>
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#include <linux/etherdevice.h>
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#include <linux/types.h>
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#include <linux/pci_ids.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/sched.h>
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#include <linux/firmware.h>
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#include <net/mac80211.h>
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#include <proto/802.11.h>
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#include "phy/wlc_phy_int.h"
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#include "wlc_types.h"
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#include "phy/phy_version.h"
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#include "wlc_channel.h"
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#include "wl_export.h"
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#include "wl_mac80211.h"
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static void wl_timer(unsigned long data);
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static void _wl_timer(struct wl_timer *t);
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static int ieee_hw_init(struct ieee80211_hw *hw);
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static int ieee_hw_rate_init(struct ieee80211_hw *hw);
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static int wl_linux_watchdog(void *ctx);
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/* Flags we support */
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#define MAC_FILTERS (FIF_PROMISC_IN_BSS | \
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FIF_BCN_PRBRESP_PROMISC)
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#define WL_DEV_IF(dev) ((struct wl_if *)netdev_priv(dev))
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#define WL_INFO(dev) ((struct wl_info *)(WL_DEV_IF(dev)->wl))
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static int wl_request_fw(struct wl_info *wl, struct pci_dev *pdev);
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static void wl_release_fw(struct wl_info *wl);
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/* local prototypes */
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static void wl_dpc(unsigned long data);
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static irqreturn_t wl_isr(int irq, void *dev_id);
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static int __devinit wl_pci_probe(struct pci_dev *pdev,
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const struct pci_device_id *ent);
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static void wl_remove(struct pci_dev *pdev);
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static void wl_free(struct wl_info *wl);
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MODULE_AUTHOR("Broadcom Corporation");
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MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN driver.");
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MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN cards");
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MODULE_LICENSE("Dual BSD/GPL");
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/* recognized PCI IDs */
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static struct pci_device_id wl_id_table[] = {
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{PCI_VENDOR_ID_BROADCOM, 0x4357, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 43225 2G */
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{PCI_VENDOR_ID_BROADCOM, 0x4353, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 43224 DUAL */
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{PCI_VENDOR_ID_BROADCOM, 0x4727, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 4313 DUAL */
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MODULE_DEVICE_TABLE(pci, wl_id_table);
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static int msglevel = 0xdeadbeef;
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module_param(msglevel, int, 0);
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static int phymsglevel = 0xdeadbeef;
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module_param(phymsglevel, int, 0);
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#define HW_TO_WL(hw) (hw->priv)
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#define WL_TO_HW(wl) (wl->pub->ieee_hw)
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/* MAC80211 callback functions */
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static int wl_ops_start(struct ieee80211_hw *hw);
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static void wl_ops_stop(struct ieee80211_hw *hw);
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static int wl_ops_add_interface(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif);
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static void wl_ops_remove_interface(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif);
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static int wl_ops_config(struct ieee80211_hw *hw, u32 changed);
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static void wl_ops_bss_info_changed(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif,
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struct ieee80211_bss_conf *info,
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static void wl_ops_configure_filter(struct ieee80211_hw *hw,
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unsigned int changed_flags,
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unsigned int *total_flags, u64 multicast);
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static int wl_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
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static void wl_ops_sw_scan_start(struct ieee80211_hw *hw);
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static void wl_ops_sw_scan_complete(struct ieee80211_hw *hw);
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static void wl_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf);
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static int wl_ops_get_stats(struct ieee80211_hw *hw,
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struct ieee80211_low_level_stats *stats);
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static int wl_ops_set_rts_threshold(struct ieee80211_hw *hw, u32 value);
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static void wl_ops_sta_notify(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif,
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enum sta_notify_cmd cmd,
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struct ieee80211_sta *sta);
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static int wl_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
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const struct ieee80211_tx_queue_params *params);
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static u64 wl_ops_get_tsf(struct ieee80211_hw *hw);
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static int wl_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
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struct ieee80211_sta *sta);
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static int wl_ops_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
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struct ieee80211_sta *sta);
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static int wl_ops_ampdu_action(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif,
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enum ieee80211_ampdu_mlme_action action,
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struct ieee80211_sta *sta, u16 tid, u16 *ssn,
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static void wl_ops_rfkill_poll(struct ieee80211_hw *hw);
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static void wl_ops_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
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struct wl_info *wl = hw->priv;
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WL_ERROR("ops->tx called while down\n");
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wlc_sendpkt_mac80211(wl->wlc, skb, hw);
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static int wl_ops_start(struct ieee80211_hw *hw)
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struct wl_info *wl = hw->priv;
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struct ieee80211_channel *curchan = hw->conf.channel;
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WL_NONE("%s : Initial channel: %d\n", __func__, curchan->hw_value);
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ieee80211_wake_queues(hw);
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blocked = wl_rfkill_set_hw_state(wl);
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wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
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static void wl_ops_stop(struct ieee80211_hw *hw)
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struct wl_info *wl = hw->priv;
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ieee80211_stop_queues(hw);
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wl_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
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/* Just STA for now */
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if (vif->type != NL80211_IFTYPE_AP &&
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vif->type != NL80211_IFTYPE_MESH_POINT &&
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vif->type != NL80211_IFTYPE_STATION &&
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vif->type != NL80211_IFTYPE_WDS &&
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vif->type != NL80211_IFTYPE_ADHOC) {
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WL_ERROR("%s: Attempt to add type %d, only STA for now\n",
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__func__, vif->type);
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WL_ERROR("%s: wl_up() returned %d\n", __func__, err);
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wl_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
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/* put driver in down state */
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* precondition: perimeter lock has been acquired
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ieee_set_channel(struct ieee80211_hw *hw, struct ieee80211_channel *chan,
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enum nl80211_channel_type type)
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struct wl_info *wl = HW_TO_WL(hw);
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case NL80211_CHAN_HT20:
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case NL80211_CHAN_NO_HT:
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err = wlc_set(wl->wlc, WLC_SET_CHANNEL, chan->hw_value);
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case NL80211_CHAN_HT40MINUS:
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case NL80211_CHAN_HT40PLUS:
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WL_ERROR("%s: Need to implement 40 Mhz Channels!\n", __func__);
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static int wl_ops_config(struct ieee80211_hw *hw, u32 changed)
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struct ieee80211_conf *conf = &hw->conf;
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struct wl_info *wl = HW_TO_WL(hw);
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if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
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(wl->wlc, "bcn_li_bcn", conf->listen_interval)) {
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WL_ERROR("%s: Error setting listen_interval\n",
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wlc_iovar_getint(wl->wlc, "bcn_li_bcn", &new_int);
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ASSERT(new_int == conf->listen_interval);
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if (changed & IEEE80211_CONF_CHANGE_MONITOR)
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WL_ERROR("%s: change monitor mode: %s (implement)\n", __func__,
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conf->flags & IEEE80211_CONF_MONITOR ?
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if (changed & IEEE80211_CONF_CHANGE_PS)
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WL_ERROR("%s: change power-save mode: %s (implement)\n",
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__func__, conf->flags & IEEE80211_CONF_PS ?
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if (changed & IEEE80211_CONF_CHANGE_POWER) {
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(wl->wlc, "qtxpower", conf->power_level * 4)) {
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WL_ERROR("%s: Error setting power_level\n", __func__);
297
wlc_iovar_getint(wl->wlc, "qtxpower", &new_int);
298
if (new_int != (conf->power_level * 4))
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WL_ERROR("%s: Power level req != actual, %d %d\n",
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__func__, conf->power_level * 4, new_int);
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if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
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err = ieee_set_channel(hw, conf->channel, conf->channel_type);
305
if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
307
(wl->wlc, WLC_SET_SRL,
308
conf->short_frame_max_tx_count) < 0) {
309
WL_ERROR("%s: Error setting srl\n", __func__);
313
if (wlc_set(wl->wlc, WLC_SET_LRL, conf->long_frame_max_tx_count)
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WL_ERROR("%s: Error setting lrl\n", __func__);
327
wl_ops_bss_info_changed(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif,
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struct ieee80211_bss_conf *info, u32 changed)
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struct wl_info *wl = HW_TO_WL(hw);
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if (changed & BSS_CHANGED_ASSOC) {
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/* association status changed (associated/disassociated)
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* also implies a change in the AID.
338
WL_ERROR("%s: %s: %sassociated\n", KBUILD_MODNAME, __func__,
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info->assoc ? "" : "dis");
340
wlc_associate_upd(wl->wlc, info->assoc);
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if (changed & BSS_CHANGED_ERP_CTS_PROT) {
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/* CTS protection changed */
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WL_ERROR("%s: use_cts_prot: %s (implement)\n", __func__,
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info->use_cts_prot ? "true" : "false");
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if (changed & BSS_CHANGED_ERP_PREAMBLE) {
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/* preamble changed */
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WL_ERROR("%s: short preamble: %s (implement)\n", __func__,
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info->use_short_preamble ? "true" : "false");
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if (changed & BSS_CHANGED_ERP_SLOT) {
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/* slot timing changed */
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if (info->use_short_slot)
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wlc_set(wl->wlc, WLC_SET_SHORTSLOT_OVERRIDE, val);
363
if (changed & BSS_CHANGED_HT) {
364
/* 802.11n parameters changed */
365
u16 mode = info->ht_operation_mode;
366
WL_NONE("%s: HT mode: 0x%04X\n", __func__, mode);
367
wlc_protection_upd(wl->wlc, WLC_PROT_N_CFG,
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mode & IEEE80211_HT_OP_MODE_PROTECTION);
369
wlc_protection_upd(wl->wlc, WLC_PROT_N_NONGF,
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mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
371
wlc_protection_upd(wl->wlc, WLC_PROT_N_OBSS,
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mode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT);
374
if (changed & BSS_CHANGED_BASIC_RATES) {
375
/* Basic rateset changed */
376
WL_ERROR("%s: Need to change Basic Rates: 0x%x (implement)\n",
377
__func__, (u32) info->basic_rates);
379
if (changed & BSS_CHANGED_BEACON_INT) {
380
/* Beacon interval changed */
381
WL_NONE("%s: Beacon Interval: %d\n",
382
__func__, info->beacon_int);
383
wlc_set(wl->wlc, WLC_SET_BCNPRD, info->beacon_int);
385
if (changed & BSS_CHANGED_BSSID) {
386
/* BSSID changed, for whatever reason (IBSS and managed mode) */
387
WL_NONE("%s: new BSSID: aid %d bss:%pM\n", __func__,
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info->aid, info->bssid);
390
wlc_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET,
394
if (changed & BSS_CHANGED_BEACON) {
395
/* Beacon data changed, retrieve new beacon (beaconing modes) */
396
WL_ERROR("%s: beacon changed\n", __func__);
398
if (changed & BSS_CHANGED_BEACON_ENABLED) {
399
/* Beaconing should be enabled/disabled (beaconing modes) */
400
WL_ERROR("%s: Beacon enabled: %s\n", __func__,
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info->enable_beacon ? "true" : "false");
403
if (changed & BSS_CHANGED_CQM) {
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/* Connection quality monitor config changed */
405
WL_ERROR("%s: cqm change: threshold %d, hys %d (implement)\n",
406
__func__, info->cqm_rssi_thold, info->cqm_rssi_hyst);
408
if (changed & BSS_CHANGED_IBSS) {
409
/* IBSS join status changed */
410
WL_ERROR("%s: IBSS joined: %s (implement)\n", __func__,
411
info->ibss_joined ? "true" : "false");
413
if (changed & BSS_CHANGED_ARP_FILTER) {
414
/* Hardware ARP filter address list or state changed */
415
WL_ERROR("%s: arp filtering: enabled %s, count %d (implement)\n",
416
__func__, info->arp_filter_enabled ? "true" : "false",
419
if (changed & BSS_CHANGED_QOS) {
421
* QoS for this association was enabled/disabled.
422
* Note that it is only ever disabled for station mode.
424
WL_ERROR("%s: qos enabled: %s (implement)\n", __func__,
425
info->qos ? "true" : "false");
427
if (changed & BSS_CHANGED_IDLE) {
428
/* Idle changed for this BSS/interface */
429
WL_ERROR("%s: BSS idle: %s (implement)\n", __func__,
430
info->idle ? "true" : "false");
436
wl_ops_configure_filter(struct ieee80211_hw *hw,
437
unsigned int changed_flags,
438
unsigned int *total_flags, u64 multicast)
440
struct wl_info *wl = hw->priv;
442
changed_flags &= MAC_FILTERS;
443
*total_flags &= MAC_FILTERS;
444
if (changed_flags & FIF_PROMISC_IN_BSS)
445
WL_ERROR("FIF_PROMISC_IN_BSS\n");
446
if (changed_flags & FIF_ALLMULTI)
447
WL_ERROR("FIF_ALLMULTI\n");
448
if (changed_flags & FIF_FCSFAIL)
449
WL_ERROR("FIF_FCSFAIL\n");
450
if (changed_flags & FIF_PLCPFAIL)
451
WL_ERROR("FIF_PLCPFAIL\n");
452
if (changed_flags & FIF_CONTROL)
453
WL_ERROR("FIF_CONTROL\n");
454
if (changed_flags & FIF_OTHER_BSS)
455
WL_ERROR("FIF_OTHER_BSS\n");
456
if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
457
WL_NONE("FIF_BCN_PRBRESP_PROMISC\n");
459
if (*total_flags & FIF_BCN_PRBRESP_PROMISC) {
460
wl->pub->mac80211_state |= MAC80211_PROMISC_BCNS;
461
wlc_mac_bcn_promisc_change(wl->wlc, 1);
463
wlc_mac_bcn_promisc_change(wl->wlc, 0);
464
wl->pub->mac80211_state &= ~MAC80211_PROMISC_BCNS;
472
wl_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set)
474
WL_NONE("%s: Enter\n", __func__);
478
static void wl_ops_sw_scan_start(struct ieee80211_hw *hw)
480
struct wl_info *wl = hw->priv;
481
WL_NONE("Scan Start\n");
483
wlc_scan_start(wl->wlc);
488
static void wl_ops_sw_scan_complete(struct ieee80211_hw *hw)
490
struct wl_info *wl = hw->priv;
491
WL_NONE("Scan Complete\n");
493
wlc_scan_stop(wl->wlc);
498
static void wl_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf)
500
WL_ERROR("%s: Enter\n", __func__);
505
wl_ops_get_stats(struct ieee80211_hw *hw,
506
struct ieee80211_low_level_stats *stats)
508
struct wl_info *wl = hw->priv;
513
stats->dot11ACKFailureCount = cnt->txnoack;
514
stats->dot11RTSFailureCount = cnt->txnocts;
515
stats->dot11FCSErrorCount = cnt->rxcrc;
516
stats->dot11RTSSuccessCount = cnt->txrts;
521
static int wl_ops_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
523
struct wl_info *wl = hw->priv;
526
wlc_iovar_setint(wl->wlc, "rtsthresh", value & 0xFFFF);
532
wl_ops_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
533
enum sta_notify_cmd cmd, struct ieee80211_sta *sta)
535
WL_NONE("%s: Enter\n", __func__);
538
WL_ERROR("%s: Unknown cmd = %d\n", __func__, cmd);
545
wl_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
546
const struct ieee80211_tx_queue_params *params)
548
struct wl_info *wl = hw->priv;
550
WL_NONE("%s: Enter (WME config)\n", __func__);
551
WL_NONE("queue %d, txop %d, cwmin %d, cwmax %d, aifs %d\n", queue,
552
params->txop, params->cw_min, params->cw_max, params->aifs);
555
wlc_wme_setparams(wl->wlc, queue, (void *)params, true);
561
static u64 wl_ops_get_tsf(struct ieee80211_hw *hw)
563
WL_ERROR("%s: Enter\n", __func__);
568
wl_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
569
struct ieee80211_sta *sta)
574
struct wl_info *wl = hw->priv;
577
scb = (struct scb *)sta->drv_priv;
578
memset(scb, 0, sizeof(struct scb));
579
for (i = 0; i < NUMPRIO; i++)
580
scb->seqctl[i] = 0xFFFF;
581
scb->seqctl_nonqos = 0xFFFF;
582
scb->magic = SCB_MAGIC;
584
wl->pub->global_scb = scb;
585
wl->pub->global_ampdu = &(scb->scb_ampdu);
586
wl->pub->global_ampdu->scb = scb;
587
wl->pub->global_ampdu->max_pdu = 16;
588
pktq_init(&scb->scb_ampdu.txq, AMPDU_MAX_SCB_TID,
589
AMPDU_MAX_SCB_TID * PKTQ_LEN_DEFAULT);
591
sta->ht_cap.ht_supported = true;
592
sta->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
593
sta->ht_cap.ampdu_density = AMPDU_DEF_MPDU_DENSITY;
594
sta->ht_cap.cap = IEEE80211_HT_CAP_GRN_FLD |
595
IEEE80211_HT_CAP_SGI_20 |
596
IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT;
598
/* minstrel_ht initiates addBA on our behalf by calling ieee80211_start_tx_ba_session() */
603
wl_ops_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
604
struct ieee80211_sta *sta)
606
WL_NONE("%s: Enter\n", __func__);
611
wl_ops_ampdu_action(struct ieee80211_hw *hw,
612
struct ieee80211_vif *vif,
613
enum ieee80211_ampdu_mlme_action action,
614
struct ieee80211_sta *sta, u16 tid, u16 *ssn,
618
struct scb *scb = (struct scb *)sta->drv_priv;
620
struct wl_info *wl = hw->priv;
623
ASSERT(scb->magic == SCB_MAGIC);
625
case IEEE80211_AMPDU_RX_START:
626
WL_NONE("%s: action = IEEE80211_AMPDU_RX_START\n", __func__);
628
case IEEE80211_AMPDU_RX_STOP:
629
WL_NONE("%s: action = IEEE80211_AMPDU_RX_STOP\n", __func__);
631
case IEEE80211_AMPDU_TX_START:
633
status = wlc_aggregatable(wl->wlc, tid);
636
/* WL_ERROR("START: tid %d is not agg' able, return FAILURE to stack\n", tid); */
639
/* XXX: Use the starting sequence number provided ... */
641
ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
644
case IEEE80211_AMPDU_TX_STOP:
646
wlc_ampdu_flush(wl->wlc, sta, tid);
648
ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
650
case IEEE80211_AMPDU_TX_OPERATIONAL:
651
/* Not sure what to do here */
652
/* Power save wakeup */
653
WL_NONE("%s: action = IEEE80211_AMPDU_TX_OPERATIONAL\n",
657
WL_ERROR("%s: Invalid command, ignoring\n", __func__);
663
static void wl_ops_rfkill_poll(struct ieee80211_hw *hw)
665
struct wl_info *wl = HW_TO_WL(hw);
669
blocked = wlc_check_radio_disabled(wl->wlc);
672
WL_NONE("wl: rfkill_poll: %d\n", blocked);
673
wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
676
static const struct ieee80211_ops wl_ops = {
678
.start = wl_ops_start,
680
.add_interface = wl_ops_add_interface,
681
.remove_interface = wl_ops_remove_interface,
682
.config = wl_ops_config,
683
.bss_info_changed = wl_ops_bss_info_changed,
684
.configure_filter = wl_ops_configure_filter,
685
.set_tim = wl_ops_set_tim,
686
.sw_scan_start = wl_ops_sw_scan_start,
687
.sw_scan_complete = wl_ops_sw_scan_complete,
688
.set_tsf = wl_ops_set_tsf,
689
.get_stats = wl_ops_get_stats,
690
.set_rts_threshold = wl_ops_set_rts_threshold,
691
.sta_notify = wl_ops_sta_notify,
692
.conf_tx = wl_ops_conf_tx,
693
.get_tsf = wl_ops_get_tsf,
694
.sta_add = wl_ops_sta_add,
695
.sta_remove = wl_ops_sta_remove,
696
.ampdu_action = wl_ops_ampdu_action,
697
.rfkill_poll = wl_ops_rfkill_poll,
701
* is called in wl_pci_probe() context, therefore no locking required.
703
static int wl_set_hint(struct wl_info *wl, char *abbrev)
705
WL_NONE("%s: Sending country code %c%c to MAC80211\n",
706
__func__, abbrev[0], abbrev[1]);
707
return regulatory_hint(wl->pub->ieee_hw->wiphy, abbrev);
711
* attach to the WL device.
713
* Attach to the WL device identified by vendor and device parameters.
714
* regs is a host accessible memory address pointing to WL device registers.
716
* wl_attach is not defined as static because in the case where no bus
717
* is defined, wl_attach will never be called, and thus, gcc will issue
718
* a warning that this function is defined but not used if we declare
722
* is called in wl_pci_probe() context, therefore no locking required.
724
static struct wl_info *wl_attach(u16 vendor, u16 device, unsigned long regs,
725
uint bustype, void *btparam, uint irq)
730
unsigned long base_addr;
731
struct ieee80211_hw *hw;
738
WL_ERROR("wl%d: unit number overflow, exiting\n", unit);
742
/* allocate private info */
743
hw = pci_get_drvdata(btparam); /* btparam == pdev */
747
atomic_set(&wl->callbacks, 0);
749
/* setup the bottom half handler */
750
tasklet_init(&wl->tasklet, wl_dpc, (unsigned long) wl);
756
if (bustype == PCI_BUS) {
758
} else if (bustype == RPC_BUS) {
762
WL_TRACE("force to PCI\n");
764
wl->bcm_bustype = bustype;
766
wl->regsva = ioremap_nocache(base_addr, PCI_BAR0_WINSZ);
767
if (wl->regsva == NULL) {
768
WL_ERROR("wl%d: ioremap() failed\n", unit);
771
spin_lock_init(&wl->lock);
772
spin_lock_init(&wl->isr_lock);
775
if (wl_request_fw(wl, (struct pci_dev *)btparam) < 0) {
776
WL_ERROR("%s: Failed to find firmware usually in %s\n",
777
KBUILD_MODNAME, "/lib/firmware/brcm");
779
wl_remove((struct pci_dev *)btparam);
783
/* common load-time initialization */
784
wl->wlc = wlc_attach((void *)wl, vendor, device, unit, wl->piomode,
785
wl->regsva, wl->bcm_bustype, btparam, &err);
788
WL_ERROR("%s: wlc_attach() failed with code %d\n",
789
KBUILD_MODNAME, err);
792
wl->pub = wlc_pub(wl->wlc);
794
wl->pub->ieee_hw = hw;
795
ASSERT(wl->pub->ieee_hw);
796
ASSERT(wl->pub->ieee_hw->priv == wl);
799
if (wlc_iovar_setint(wl->wlc, "mpc", 0)) {
800
WL_ERROR("wl%d: Error setting MPC variable to 0\n", unit);
803
/* register our interrupt handler */
804
if (request_irq(irq, wl_isr, IRQF_SHARED, KBUILD_MODNAME, wl)) {
805
WL_ERROR("wl%d: request_irq() failed\n", unit);
810
/* register module */
811
wlc_module_register(wl->pub, NULL, "linux", wl, NULL, wl_linux_watchdog,
814
if (ieee_hw_init(hw)) {
815
WL_ERROR("wl%d: %s: ieee_hw_init failed!\n", unit, __func__);
819
memcpy(perm, &wl->pub->cur_etheraddr, ETH_ALEN);
820
ASSERT(is_valid_ether_addr(perm));
821
SET_IEEE80211_PERM_ADDR(hw, perm);
823
err = ieee80211_register_hw(hw);
825
WL_ERROR("%s: ieee80211_register_hw failed, status %d\n",
829
if (wl->pub->srom_ccode[0])
830
err = wl_set_hint(wl, wl->pub->srom_ccode);
832
err = wl_set_hint(wl, "US");
834
WL_ERROR("%s: regulatory_hint failed, status %d\n",
849
#define CHAN2GHZ(channel, freqency, chflags) { \
850
.band = IEEE80211_BAND_2GHZ, \
851
.center_freq = (freqency), \
852
.hw_value = (channel), \
854
.max_antenna_gain = 0, \
858
static struct ieee80211_channel wl_2ghz_chantable[] = {
859
CHAN2GHZ(1, 2412, IEEE80211_CHAN_NO_HT40MINUS),
860
CHAN2GHZ(2, 2417, IEEE80211_CHAN_NO_HT40MINUS),
861
CHAN2GHZ(3, 2422, IEEE80211_CHAN_NO_HT40MINUS),
862
CHAN2GHZ(4, 2427, IEEE80211_CHAN_NO_HT40MINUS),
863
CHAN2GHZ(5, 2432, 0),
864
CHAN2GHZ(6, 2437, 0),
865
CHAN2GHZ(7, 2442, 0),
866
CHAN2GHZ(8, 2447, IEEE80211_CHAN_NO_HT40PLUS),
867
CHAN2GHZ(9, 2452, IEEE80211_CHAN_NO_HT40PLUS),
868
CHAN2GHZ(10, 2457, IEEE80211_CHAN_NO_HT40PLUS),
869
CHAN2GHZ(11, 2462, IEEE80211_CHAN_NO_HT40PLUS),
871
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
872
IEEE80211_CHAN_NO_HT40PLUS),
874
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
875
IEEE80211_CHAN_NO_HT40PLUS),
877
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
878
IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
881
#define CHAN5GHZ(channel, chflags) { \
882
.band = IEEE80211_BAND_5GHZ, \
883
.center_freq = 5000 + 5*(channel), \
884
.hw_value = (channel), \
886
.max_antenna_gain = 0, \
890
static struct ieee80211_channel wl_5ghz_nphy_chantable[] = {
892
CHAN5GHZ(36, IEEE80211_CHAN_NO_HT40MINUS),
893
CHAN5GHZ(40, IEEE80211_CHAN_NO_HT40PLUS),
894
CHAN5GHZ(44, IEEE80211_CHAN_NO_HT40MINUS),
895
CHAN5GHZ(48, IEEE80211_CHAN_NO_HT40PLUS),
898
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
899
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
901
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
902
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
904
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
905
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
907
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
908
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
911
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
912
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
914
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
915
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
917
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
918
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
920
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
921
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
923
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
924
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
926
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
927
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
929
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
930
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
932
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
933
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
935
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
936
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
938
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
939
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
941
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
942
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS |
943
IEEE80211_CHAN_NO_HT40MINUS),
945
CHAN5GHZ(149, IEEE80211_CHAN_NO_HT40MINUS),
946
CHAN5GHZ(153, IEEE80211_CHAN_NO_HT40PLUS),
947
CHAN5GHZ(157, IEEE80211_CHAN_NO_HT40MINUS),
948
CHAN5GHZ(161, IEEE80211_CHAN_NO_HT40PLUS),
949
CHAN5GHZ(165, IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
952
#define RATE(rate100m, _flags) { \
953
.bitrate = (rate100m), \
955
.hw_value = (rate100m / 5), \
958
static struct ieee80211_rate wl_legacy_ratetable[] = {
960
RATE(20, IEEE80211_RATE_SHORT_PREAMBLE),
961
RATE(55, IEEE80211_RATE_SHORT_PREAMBLE),
962
RATE(110, IEEE80211_RATE_SHORT_PREAMBLE),
973
static struct ieee80211_supported_band wl_band_2GHz_nphy = {
974
.band = IEEE80211_BAND_2GHZ,
975
.channels = wl_2ghz_chantable,
976
.n_channels = ARRAY_SIZE(wl_2ghz_chantable),
977
.bitrates = wl_legacy_ratetable,
978
.n_bitrates = ARRAY_SIZE(wl_legacy_ratetable),
980
/* from include/linux/ieee80211.h */
981
.cap = IEEE80211_HT_CAP_GRN_FLD |
982
IEEE80211_HT_CAP_SGI_20 |
983
IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT,
984
.ht_supported = true,
985
.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
986
.ampdu_density = AMPDU_DEF_MPDU_DENSITY,
988
/* placeholders for now */
989
.rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
991
.tx_params = IEEE80211_HT_MCS_TX_DEFINED}
995
static struct ieee80211_supported_band wl_band_5GHz_nphy = {
996
.band = IEEE80211_BAND_5GHZ,
997
.channels = wl_5ghz_nphy_chantable,
998
.n_channels = ARRAY_SIZE(wl_5ghz_nphy_chantable),
999
.bitrates = wl_legacy_ratetable + 4,
1000
.n_bitrates = ARRAY_SIZE(wl_legacy_ratetable) - 4,
1002
/* use IEEE80211_HT_CAP_* from include/linux/ieee80211.h */
1003
.cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 | IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT, /* No 40 mhz yet */
1004
.ht_supported = true,
1005
.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
1006
.ampdu_density = AMPDU_DEF_MPDU_DENSITY,
1008
/* placeholders for now */
1009
.rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
1011
.tx_params = IEEE80211_HT_MCS_TX_DEFINED}
1016
* is called in wl_pci_probe() context, therefore no locking required.
1018
static int ieee_hw_rate_init(struct ieee80211_hw *hw)
1020
struct wl_info *wl = HW_TO_WL(hw);
1026
hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
1027
hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
1029
if (wlc_get(wl->wlc, WLC_GET_PHYLIST, (int *)&phy_list) < 0) {
1030
WL_ERROR("Phy list failed\n");
1032
WL_NONE("%s: phylist = %c\n", __func__, phy_list[0]);
1034
if (phy_list[0] == 'n' || phy_list[0] == 'c') {
1035
if (phy_list[0] == 'c') {
1037
wl_band_2GHz_nphy.ht_cap.mcs.rx_mask[1] = 0;
1038
wl_band_2GHz_nphy.ht_cap.mcs.rx_highest = 72;
1040
hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl_band_2GHz_nphy;
1046
/* Assume all bands use the same phy. True for 11n devices. */
1047
if (NBANDS_PUB(wl->pub) > 1) {
1049
if (phy_list[0] == 'n' || phy_list[0] == 'c') {
1050
hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
1057
WL_NONE("%s: 2ghz = %d, 5ghz = %d\n", __func__, 1, has_5g);
1063
* is called in wl_pci_probe() context, therefore no locking required.
1065
static int ieee_hw_init(struct ieee80211_hw *hw)
1067
hw->flags = IEEE80211_HW_SIGNAL_DBM
1068
/* | IEEE80211_HW_CONNECTION_MONITOR What is this? */
1069
| IEEE80211_HW_REPORTS_TX_ACK_STATUS
1070
| IEEE80211_HW_AMPDU_AGGREGATION;
1072
hw->extra_tx_headroom = wlc_get_header_len();
1073
/* FIXME: should get this from wlc->machwcap */
1075
/* FIXME: this doesn't seem to be used properly in minstrel_ht.
1076
* mac80211/status.c:ieee80211_tx_status() checks this value,
1077
* but mac80211/rc80211_minstrel_ht.c:minstrel_ht_get_rate()
1078
* appears to always set 3 rates
1080
hw->max_rates = 2; /* Primary rate and 1 fallback rate */
1082
hw->channel_change_time = 7 * 1000; /* channel change time is dependent on chip and band */
1083
hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
1085
hw->rate_control_algorithm = "minstrel_ht";
1087
hw->sta_data_size = sizeof(struct scb);
1088
return ieee_hw_rate_init(hw);
1092
* determines if a device is a WL device, and if so, attaches it.
1094
* This function determines if a device pointed to by pdev is a WL device,
1095
* and if so, performs a wl_attach() on it.
1097
* Perimeter lock is initialized in the course of this function.
1099
static int __devinit
1100
wl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1104
struct ieee80211_hw *hw;
1109
WL_TRACE("%s: bus %d slot %d func %d irq %d\n",
1110
__func__, pdev->bus->number, PCI_SLOT(pdev->devfn),
1111
PCI_FUNC(pdev->devfn), pdev->irq);
1113
if ((pdev->vendor != PCI_VENDOR_ID_BROADCOM) ||
1114
(((pdev->device & 0xff00) != 0x4300) &&
1115
((pdev->device & 0xff00) != 0x4700) &&
1116
((pdev->device < 43000) || (pdev->device > 43999))))
1119
rc = pci_enable_device(pdev);
1121
WL_ERROR("%s: Cannot enable device %d-%d_%d\n",
1122
__func__, pdev->bus->number, PCI_SLOT(pdev->devfn),
1123
PCI_FUNC(pdev->devfn));
1126
pci_set_master(pdev);
1128
pci_read_config_dword(pdev, 0x40, &val);
1129
if ((val & 0x0000ff00) != 0)
1130
pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
1132
hw = ieee80211_alloc_hw(sizeof(struct wl_info), &wl_ops);
1134
WL_ERROR("%s: ieee80211_alloc_hw failed\n", __func__);
1139
SET_IEEE80211_DEV(hw, &pdev->dev);
1141
pci_set_drvdata(pdev, hw);
1143
memset(hw->priv, 0, sizeof(*wl));
1145
wl = wl_attach(pdev->vendor, pdev->device, pci_resource_start(pdev, 0),
1146
PCI_BUS, pdev, pdev->irq);
1149
WL_ERROR("%s: %s: wl_attach failed!\n",
1150
KBUILD_MODNAME, __func__);
1155
WL_ERROR("%s: err_1: Major hoarkage\n", __func__);
1159
static int wl_suspend(struct pci_dev *pdev, pm_message_t state)
1162
struct ieee80211_hw *hw;
1164
WL_TRACE("wl: wl_suspend\n");
1166
hw = pci_get_drvdata(pdev);
1169
WL_ERROR("wl: wl_suspend: pci_get_drvdata failed\n");
1173
/* only need to flag hw is down for proper resume */
1175
wl->pub->hw_up = false;
1178
pci_save_state(pdev);
1179
pci_disable_device(pdev);
1180
return pci_set_power_state(pdev, PCI_D3hot);
1183
static int wl_resume(struct pci_dev *pdev)
1186
struct ieee80211_hw *hw;
1190
WL_TRACE("wl: wl_resume\n");
1191
hw = pci_get_drvdata(pdev);
1194
WL_ERROR("wl: wl_resume: pci_get_drvdata failed\n");
1198
err = pci_set_power_state(pdev, PCI_D0);
1202
pci_restore_state(pdev);
1204
err = pci_enable_device(pdev);
1208
pci_set_master(pdev);
1210
pci_read_config_dword(pdev, 0x40, &val);
1211
if ((val & 0x0000ff00) != 0)
1212
pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
1215
* done. driver will be put in up state
1216
* in wl_ops_add_interface() call.
1222
* called from both kernel as from wl_*()
1223
* precondition: perimeter lock is not acquired.
1225
static void wl_remove(struct pci_dev *pdev)
1228
struct ieee80211_hw *hw;
1231
hw = pci_get_drvdata(pdev);
1234
WL_ERROR("wl: wl_remove: pci_get_drvdata failed\n");
1239
status = wlc_chipmatch(pdev->vendor, pdev->device);
1242
WL_ERROR("wl: wl_remove: wlc_chipmatch failed\n");
1246
wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false);
1247
wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
1248
ieee80211_unregister_hw(hw);
1252
WL_NONE("%s: Down\n", __func__);
1254
pci_disable_device(pdev);
1258
pci_set_drvdata(pdev, NULL);
1259
ieee80211_free_hw(hw);
1262
static struct pci_driver wl_pci_driver = {
1263
.name = KBUILD_MODNAME,
1264
.probe = wl_pci_probe,
1265
.suspend = wl_suspend,
1266
.resume = wl_resume,
1267
.remove = __devexit_p(wl_remove),
1268
.id_table = wl_id_table,
1272
* This is the main entry point for the WL driver.
1274
* This function determines if a device pointed to by pdev is a WL device,
1275
* and if so, performs a wl_attach() on it.
1278
static int __init wl_module_init(void)
1280
int error = -ENODEV;
1283
if (msglevel != 0xdeadbeef)
1284
wl_msg_level = msglevel;
1286
char *var = getvar(NULL, "wl_msglevel");
1288
unsigned long value;
1290
(void)strict_strtoul(var, 0, &value);
1291
wl_msg_level = value;
1294
if (phymsglevel != 0xdeadbeef)
1295
phyhal_msg_level = phymsglevel;
1297
char *var = getvar(NULL, "phy_msglevel");
1299
unsigned long value;
1301
(void)strict_strtoul(var, 0, &value);
1302
phyhal_msg_level = value;
1307
error = pci_register_driver(&wl_pci_driver);
1317
* This function unloads the WL driver from the system.
1319
* This function unconditionally unloads the WL driver module from the
1323
static void __exit wl_module_exit(void)
1325
pci_unregister_driver(&wl_pci_driver);
1329
module_init(wl_module_init);
1330
module_exit(wl_module_exit);
1333
* This function frees the WL per-device resources.
1335
* This function frees resources owned by the WL device pointed to
1336
* by the wl parameter.
1338
* precondition: can both be called locked and unlocked
1341
static void wl_free(struct wl_info *wl)
1343
struct wl_timer *t, *next;
1346
/* free ucode data */
1348
wl_ucode_data_free();
1350
free_irq(wl->irq, wl);
1353
tasklet_kill(&wl->tasklet);
1356
wlc_module_unregister(wl->pub, "linux", wl);
1359
/* free common resources */
1361
wlc_detach(wl->wlc);
1366
/* virtual interface deletion is deferred so we cannot spinwait */
1368
/* wait for all pending callbacks to complete */
1369
while (atomic_read(&wl->callbacks) > 0)
1373
for (t = wl->timers; t; t = next) {
1382
* unregister_netdev() calls get_stats() which may read chip registers
1383
* so we cannot unmap the chip registers until after calling unregister_netdev() .
1385
if (wl->regsva && wl->bcm_bustype != SDIO_BUS &&
1386
wl->bcm_bustype != JTAG_BUS) {
1387
iounmap((void *)wl->regsva);
1393
* precondition: perimeter lock has been acquired
1395
void wl_txflowcontrol(struct wl_info *wl, struct wl_if *wlif, bool state,
1398
WL_ERROR("Shouldn't be here %s\n", __func__);
1402
* precondition: perimeter lock has been acquired
1404
void wl_init(struct wl_info *wl)
1406
WL_TRACE("wl%d: wl_init\n", wl->pub->unit);
1414
* precondition: perimeter lock has been acquired
1416
uint wl_reset(struct wl_info *wl)
1418
WL_TRACE("wl%d: wl_reset\n", wl->pub->unit);
1422
/* dpc will not be rescheduled */
1429
* These are interrupt on/off entry points. Disable interrupts
1430
* during interrupt state transition.
1432
void BCMFASTPATH wl_intrson(struct wl_info *wl)
1434
unsigned long flags;
1436
INT_LOCK(wl, flags);
1437
wlc_intrson(wl->wlc);
1438
INT_UNLOCK(wl, flags);
1442
* precondition: perimeter lock has been acquired
1444
bool wl_alloc_dma_resources(struct wl_info *wl, uint addrwidth)
1449
u32 BCMFASTPATH wl_intrsoff(struct wl_info *wl)
1451
unsigned long flags;
1454
INT_LOCK(wl, flags);
1455
status = wlc_intrsoff(wl->wlc);
1456
INT_UNLOCK(wl, flags);
1460
void wl_intrsrestore(struct wl_info *wl, u32 macintmask)
1462
unsigned long flags;
1464
INT_LOCK(wl, flags);
1465
wlc_intrsrestore(wl->wlc, macintmask);
1466
INT_UNLOCK(wl, flags);
1470
* precondition: perimeter lock has been acquired
1472
int wl_up(struct wl_info *wl)
1479
error = wlc_up(wl->wlc);
1485
* precondition: perimeter lock has been acquired
1487
void wl_down(struct wl_info *wl)
1489
uint callbacks, ret_val = 0;
1491
/* call common down function */
1492
ret_val = wlc_down(wl->wlc);
1493
callbacks = atomic_read(&wl->callbacks) - ret_val;
1495
/* wait for down callbacks to complete */
1498
/* For HIGH_only driver, it's important to actually schedule other work,
1499
* not just spin wait since everything runs at schedule level
1501
SPINWAIT((atomic_read(&wl->callbacks) > callbacks), 100 * 1000);
1506
static irqreturn_t BCMFASTPATH wl_isr(int irq, void *dev_id)
1510
unsigned long flags;
1512
wl = (struct wl_info *) dev_id;
1514
WL_ISRLOCK(wl, flags);
1516
/* call common first level interrupt handler */
1517
ours = wlc_isr(wl->wlc, &wantdpc);
1519
/* if more to do... */
1522
/* ...and call the second level interrupt handler */
1524
ASSERT(wl->resched == false);
1525
tasklet_schedule(&wl->tasklet);
1529
WL_ISRUNLOCK(wl, flags);
1531
return IRQ_RETVAL(ours);
1534
static void BCMFASTPATH wl_dpc(unsigned long data)
1538
wl = (struct wl_info *) data;
1542
/* call the common second level interrupt handler */
1545
unsigned long flags;
1547
INT_LOCK(wl, flags);
1548
wlc_intrsupd(wl->wlc);
1549
INT_UNLOCK(wl, flags);
1552
wl->resched = wlc_dpc(wl->wlc, true);
1555
/* wlc_dpc() may bring the driver down */
1559
/* re-schedule dpc */
1561
tasklet_schedule(&wl->tasklet);
1563
/* re-enable interrupts */
1572
* is called by the kernel from software irq context
1574
static void wl_timer(unsigned long data)
1576
_wl_timer((struct wl_timer *) data);
1580
* precondition: perimeter lock is not acquired
1582
static void _wl_timer(struct wl_timer *t)
1588
t->timer.expires = jiffies + t->ms * HZ / 1000;
1589
atomic_inc(&t->wl->callbacks);
1590
add_timer(&t->timer);
1598
atomic_dec(&t->wl->callbacks);
1604
* Adds a timer to the list. Caller supplies a timer function.
1605
* Is called from wlc.
1607
* precondition: perimeter lock has been acquired
1609
struct wl_timer *wl_init_timer(struct wl_info *wl, void (*fn) (void *arg),
1610
void *arg, const char *name)
1614
t = kzalloc(sizeof(struct wl_timer), GFP_ATOMIC);
1616
WL_ERROR("wl%d: wl_init_timer: out of memory\n", wl->pub->unit);
1620
init_timer(&t->timer);
1621
t->timer.data = (unsigned long) t;
1622
t->timer.function = wl_timer;
1626
t->next = wl->timers;
1630
t->name = kmalloc(strlen(name) + 1, GFP_ATOMIC);
1632
strcpy(t->name, name);
1638
/* BMAC_NOTE: Add timer adds only the kernel timer since it's going to be more accurate
1639
* as well as it's easier to make it periodic
1641
* precondition: perimeter lock has been acquired
1643
void wl_add_timer(struct wl_info *wl, struct wl_timer *t, uint ms, int periodic)
1647
WL_ERROR("%s: Already set. Name: %s, per %d\n",
1648
__func__, t->name, periodic);
1654
t->periodic = (bool) periodic;
1656
t->timer.expires = jiffies + ms * HZ / 1000;
1658
atomic_inc(&wl->callbacks);
1659
add_timer(&t->timer);
1663
* return true if timer successfully deleted, false if still pending
1665
* precondition: perimeter lock has been acquired
1667
bool wl_del_timer(struct wl_info *wl, struct wl_timer *t)
1671
if (!del_timer(&t->timer)) {
1674
atomic_dec(&wl->callbacks);
1681
* precondition: perimeter lock has been acquired
1683
void wl_free_timer(struct wl_info *wl, struct wl_timer *t)
1685
struct wl_timer *tmp;
1687
/* delete the timer in case it is active */
1688
wl_del_timer(wl, t);
1690
if (wl->timers == t) {
1691
wl->timers = wl->timers->next;
1702
if (tmp->next == t) {
1703
tmp->next = t->next;
1716
* runs in software irq context
1718
* precondition: perimeter lock is not acquired
1720
static int wl_linux_watchdog(void *ctx)
1722
struct wl_info *wl = (struct wl_info *) ctx;
1724
struct net_device_stats *stats = NULL;
1728
ASSERT(wl->stats_id < 2);
1730
cnt = wl->pub->_cnt;
1731
id = 1 - wl->stats_id;
1732
stats = &wl->stats_watchdog[id];
1733
stats->rx_packets = cnt->rxframe;
1734
stats->tx_packets = cnt->txframe;
1735
stats->rx_bytes = cnt->rxbyte;
1736
stats->tx_bytes = cnt->txbyte;
1737
stats->rx_errors = cnt->rxerror;
1738
stats->tx_errors = cnt->txerror;
1739
stats->collisions = 0;
1741
stats->rx_length_errors = 0;
1742
stats->rx_over_errors = cnt->rxoflo;
1743
stats->rx_crc_errors = cnt->rxcrc;
1744
stats->rx_frame_errors = 0;
1745
stats->rx_fifo_errors = cnt->rxoflo;
1746
stats->rx_missed_errors = 0;
1748
stats->tx_fifo_errors = cnt->txuflo;
1762
char *wl_firmwares[WL_MAX_FW] = {
1768
* precondition: perimeter lock has been acquired
1770
int wl_ucode_init_buf(struct wl_info *wl, void **pbuf, u32 idx)
1774
struct wl_fw_hdr *hdr;
1775
for (i = 0; i < wl->fw.fw_cnt; i++) {
1776
hdr = (struct wl_fw_hdr *)wl->fw.fw_hdr[i]->data;
1777
for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1779
if (hdr->idx == idx) {
1780
pdata = wl->fw.fw_bin[i]->data + hdr->offset;
1781
*pbuf = kmalloc(hdr->len, GFP_ATOMIC);
1782
if (*pbuf == NULL) {
1783
WL_ERROR("fail to alloc %d bytes\n",
1787
memcpy(*pbuf, pdata, hdr->len);
1792
WL_ERROR("ERROR: ucode buf tag:%d can not be found!\n", idx);
1795
return BCME_NOTFOUND;
1799
* Precondition: Since this function is called in wl_pci_probe() context,
1800
* no locking is required.
1802
int wl_ucode_init_uint(struct wl_info *wl, u32 *data, u32 idx)
1806
struct wl_fw_hdr *hdr;
1807
for (i = 0; i < wl->fw.fw_cnt; i++) {
1808
hdr = (struct wl_fw_hdr *)wl->fw.fw_hdr[i]->data;
1809
for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1811
if (hdr->idx == idx) {
1812
pdata = wl->fw.fw_bin[i]->data + hdr->offset;
1813
ASSERT(hdr->len == 4);
1814
*data = *((u32 *) pdata);
1819
WL_ERROR("ERROR: ucode tag:%d can not be found!\n", idx);
1824
* Precondition: Since this function is called in wl_pci_probe() context,
1825
* no locking is required.
1827
static int wl_request_fw(struct wl_info *wl, struct pci_dev *pdev)
1830
struct device *device = &pdev->dev;
1834
memset((void *)&wl->fw, 0, sizeof(struct wl_firmware));
1835
for (i = 0; i < WL_MAX_FW; i++) {
1836
if (wl_firmwares[i] == NULL)
1838
sprintf(fw_name, "%s-%d.fw", wl_firmwares[i],
1839
UCODE_LOADER_API_VER);
1840
WL_NONE("request fw %s\n", fw_name);
1841
status = request_firmware(&wl->fw.fw_bin[i], fw_name, device);
1843
WL_ERROR("%s: fail to load firmware %s\n",
1844
KBUILD_MODNAME, fw_name);
1847
WL_NONE("request fw %s\n", fw_name);
1848
sprintf(fw_name, "%s_hdr-%d.fw", wl_firmwares[i],
1849
UCODE_LOADER_API_VER);
1850
status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device);
1852
WL_ERROR("%s: fail to load firmware %s\n",
1853
KBUILD_MODNAME, fw_name);
1856
wl->fw.hdr_num_entries[i] =
1857
wl->fw.fw_hdr[i]->size / (sizeof(struct wl_fw_hdr));
1858
WL_NONE("request fw %s find: %d entries\n",
1859
fw_name, wl->fw.hdr_num_entries[i]);
1862
return wl_ucode_data_init(wl);
1866
* precondition: can both be called locked and unlocked
1868
void wl_ucode_free_buf(void *p)
1874
* Precondition: Since this function is called in wl_pci_probe() context,
1875
* no locking is required.
1877
static void wl_release_fw(struct wl_info *wl)
1880
for (i = 0; i < WL_MAX_FW; i++) {
1881
release_firmware(wl->fw.fw_bin[i]);
1882
release_firmware(wl->fw.fw_hdr[i]);
1888
* checks validity of all firmware images loaded from user space
1890
* Precondition: Since this function is called in wl_pci_probe() context,
1891
* no locking is required.
1893
int wl_check_firmwares(struct wl_info *wl)
1898
const struct firmware *fw;
1899
const struct firmware *fw_hdr;
1900
struct wl_fw_hdr *ucode_hdr;
1901
for (i = 0; i < WL_MAX_FW && rc == 0; i++) {
1902
fw = wl->fw.fw_bin[i];
1903
fw_hdr = wl->fw.fw_hdr[i];
1904
if (fw == NULL && fw_hdr == NULL) {
1906
} else if (fw == NULL || fw_hdr == NULL) {
1907
WL_ERROR("%s: invalid bin/hdr fw\n", __func__);
1909
} else if (fw_hdr->size % sizeof(struct wl_fw_hdr)) {
1910
WL_ERROR("%s: non integral fw hdr file size %zu/%zu\n",
1911
__func__, fw_hdr->size,
1912
sizeof(struct wl_fw_hdr));
1914
} else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) {
1915
WL_ERROR("%s: out of bounds fw file size %zu\n",
1916
__func__, fw->size);
1919
/* check if ucode section overruns firmware image */
1920
ucode_hdr = (struct wl_fw_hdr *)fw_hdr->data;
1921
for (entry = 0; entry < wl->fw.hdr_num_entries[i] &&
1922
!rc; entry++, ucode_hdr++) {
1923
if (ucode_hdr->offset + ucode_hdr->len >
1925
WL_ERROR("%s: conflicting bin/hdr\n",
1932
if (rc == 0 && wl->fw.fw_cnt != i) {
1933
WL_ERROR("%s: invalid fw_cnt=%d\n", __func__, wl->fw.fw_cnt);
1940
* precondition: perimeter lock has been acquired
1942
bool wl_rfkill_set_hw_state(struct wl_info *wl)
1944
bool blocked = wlc_check_radio_disabled(wl->wlc);
1946
WL_NONE("%s: update hw state: blocked=%s\n", __func__,
1947
blocked ? "true" : "false");
1949
wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
1951
wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy);