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nest-open-source / nest-cam / v366 / linux / ec79ae6f5efcbbeb40c8a5d47e949244184360db / . / drivers / staging / brcm80211 / sys / wl_mac80211.c
blob: cd8392badff07e6059cf2b2e99fb697a2855b220 [file] [log] [blame]
/*
* Copyright (c) 2010 Broadcom Corporation
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#define __UNDEF_NO_VERSION__
#include <linux/kernel.h>
#include <linux/etherdevice.h>
#include <linux/string.h>
#include <linux/pci_ids.h>
#include <bcmdefs.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/sched.h>
#include <osl.h>
#define WLC_MAXBSSCFG 1 /* single BSS configs */
#include <wlc_cfg.h>
#include <net/mac80211.h>
#include <phy_version.h>
#include <bcmutils.h>
#include <pcicfg.h>
#include <wlioctl.h>
#include <wlc_key.h>
#include <sbhndpio.h>
#include <sbhnddma.h>
#include <wlc_channel.h>
#include <wlc_pub.h>
#include <wlc_scb.h>
#include <wl_dbg.h>
#include <wl_export.h>
#include <wl_mac80211.h>
#include <linux/firmware.h>
#include <wl_ucode.h>
#include <d11ucode_ext.h>
static void wl_timer(unsigned long data);
static void _wl_timer(wl_timer_t *t);
static int ieee_hw_init(struct ieee80211_hw *hw);
static int ieee_hw_rate_init(struct ieee80211_hw *hw);
static int wl_linux_watchdog(void *ctx);
/* Flags we support */
#define MAC_FILTERS (FIF_PROMISC_IN_BSS | \
FIF_ALLMULTI | \
FIF_FCSFAIL | \
FIF_PLCPFAIL | \
FIF_CONTROL | \
FIF_OTHER_BSS | \
FIF_BCN_PRBRESP_PROMISC)
static int wl_found;
struct ieee80211_tkip_data {
#define TKIP_KEY_LEN 32
u8 key[TKIP_KEY_LEN];
int key_set;
u32 tx_iv32;
u16 tx_iv16;
u16 tx_ttak[5];
int tx_phase1_done;
u32 rx_iv32;
u16 rx_iv16;
u16 rx_ttak[5];
int rx_phase1_done;
u32 rx_iv32_new;
u16 rx_iv16_new;
u32 dot11RSNAStatsTKIPReplays;
u32 dot11RSNAStatsTKIPICVErrors;
u32 dot11RSNAStatsTKIPLocalMICFailures;
int key_idx;
struct crypto_tfm *tfm_arc4;
struct crypto_tfm *tfm_michael;
/* scratch buffers for virt_to_page() (crypto API) */
u8 rx_hdr[16], tx_hdr[16];
};
#define WL_DEV_IF(dev) ((struct wl_if *)netdev_priv(dev))
#define WL_INFO(dev) ((struct wl_info *)(WL_DEV_IF(dev)->wl))
static int wl_request_fw(struct wl_info *wl, struct pci_dev *pdev);
static void wl_release_fw(struct wl_info *wl);
/* local prototypes */
static int wl_start(struct sk_buff *skb, struct wl_info *wl);
static int wl_start_int(struct wl_info *wl, struct ieee80211_hw *hw,
struct sk_buff *skb);
static void wl_dpc(unsigned long data);
MODULE_AUTHOR("Broadcom Corporation");
MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN driver.");
MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN cards");
MODULE_LICENSE("Dual BSD/GPL");
/* recognized PCI IDs */
static struct pci_device_id wl_id_table[] = {
{PCI_VENDOR_ID_BROADCOM, 0x4357, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 43225 2G */
{PCI_VENDOR_ID_BROADCOM, 0x4353, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 43224 DUAL */
{PCI_VENDOR_ID_BROADCOM, 0x4727, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 4313 DUAL */
{0}
};
MODULE_DEVICE_TABLE(pci, wl_id_table);
static void wl_remove(struct pci_dev *pdev);
#ifdef BCMDBG
static int msglevel = 0xdeadbeef;
module_param(msglevel, int, 0);
static int phymsglevel = 0xdeadbeef;
module_param(phymsglevel, int, 0);
#endif /* BCMDBG */
#define HW_TO_WL(hw) (hw->priv)
#define WL_TO_HW(wl) (wl->pub->ieee_hw)
static int wl_ops_tx(struct ieee80211_hw *hw, struct sk_buff *skb);
static int wl_ops_start(struct ieee80211_hw *hw);
static void wl_ops_stop(struct ieee80211_hw *hw);
static int wl_ops_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif);
static void wl_ops_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif);
static int wl_ops_config(struct ieee80211_hw *hw, u32 changed);
static void wl_ops_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *info,
u32 changed);
static void wl_ops_configure_filter(struct ieee80211_hw *hw,
unsigned int changed_flags,
unsigned int *total_flags, u64 multicast);
static int wl_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
bool set);
static void wl_ops_sw_scan_start(struct ieee80211_hw *hw);
static void wl_ops_sw_scan_complete(struct ieee80211_hw *hw);
static void wl_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf);
static int wl_ops_get_stats(struct ieee80211_hw *hw,
struct ieee80211_low_level_stats *stats);
static int wl_ops_set_rts_threshold(struct ieee80211_hw *hw, u32 value);
static void wl_ops_sta_notify(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
enum sta_notify_cmd cmd,
struct ieee80211_sta *sta);
static int wl_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
const struct ieee80211_tx_queue_params *params);
static u64 wl_ops_get_tsf(struct ieee80211_hw *hw);
static int wl_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta);
static int wl_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta);
static int wl_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
enum ieee80211_ampdu_mlme_action action,
struct ieee80211_sta *sta, u16 tid, u16 *ssn);
static int wl_ops_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
{
int status;
struct wl_info *wl = hw->priv;
WL_LOCK(wl);
if (!wl->pub->up) {
WL_ERROR("ops->tx called while down\n");
status = -ENETDOWN;
goto done;
}
status = wl_start(skb, wl);
done:
WL_UNLOCK(wl);
return status;
}
static int wl_ops_start(struct ieee80211_hw *hw)
{
struct wl_info *wl = hw->priv;
/*
struct ieee80211_channel *curchan = hw->conf.channel;
WL_NONE("%s : Initial channel: %d\n", __func__, curchan->hw_value);
*/
WL_LOCK(wl);
ieee80211_wake_queues(hw);
WL_UNLOCK(wl);
return 0;
}
static void wl_ops_stop(struct ieee80211_hw *hw)
{
struct wl_info *wl = hw->priv;
ASSERT(wl);
WL_LOCK(wl);
ieee80211_stop_queues(hw);
WL_UNLOCK(wl);
}
static int
wl_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
{
struct wl_info *wl;
int err;
/* Just STA for now */
if (vif->type != NL80211_IFTYPE_AP &&
vif->type != NL80211_IFTYPE_MESH_POINT &&
vif->type != NL80211_IFTYPE_STATION &&
vif->type != NL80211_IFTYPE_WDS &&
vif->type != NL80211_IFTYPE_ADHOC) {
WL_ERROR("%s: Attempt to add type %d, only STA for now\n",
__func__, vif->type);
return -EOPNOTSUPP;
}
wl = HW_TO_WL(hw);
WL_LOCK(wl);
err = wl_up(wl);
WL_UNLOCK(wl);
if (err != 0)
WL_ERROR("%s: wl_up() returned %d\n", __func__, err);
return err;
}
static void
wl_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
{
struct wl_info *wl;
wl = HW_TO_WL(hw);
/* put driver in down state */
WL_LOCK(wl);
wl_down(wl);
WL_UNLOCK(wl);
}
static int
ieee_set_channel(struct ieee80211_hw *hw, struct ieee80211_channel *chan,
enum nl80211_channel_type type)
{
struct wl_info *wl = HW_TO_WL(hw);
int err = 0;
switch (type) {
case NL80211_CHAN_HT20:
case NL80211_CHAN_NO_HT:
err = wlc_set(wl->wlc, WLC_SET_CHANNEL, chan->hw_value);
break;
case NL80211_CHAN_HT40MINUS:
case NL80211_CHAN_HT40PLUS:
WL_ERROR("%s: Need to implement 40 Mhz Channels!\n", __func__);
break;
}
if (err)
return -EIO;
return err;
}
static int wl_ops_config(struct ieee80211_hw *hw, u32 changed)
{
struct ieee80211_conf *conf = &hw->conf;
struct wl_info *wl = HW_TO_WL(hw);
int err = 0;
int new_int;
WL_LOCK(wl);
if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
WL_NONE("%s: Setting listen interval to %d\n",
__func__, conf->listen_interval);
if (wlc_iovar_setint
(wl->wlc, "bcn_li_bcn", conf->listen_interval)) {
WL_ERROR("%s: Error setting listen_interval\n",
__func__);
err = -EIO;
goto config_out;
}
wlc_iovar_getint(wl->wlc, "bcn_li_bcn", &new_int);
ASSERT(new_int == conf->listen_interval);
}
if (changed & IEEE80211_CONF_CHANGE_MONITOR)
WL_NONE("Need to set monitor mode\n");
if (changed & IEEE80211_CONF_CHANGE_PS)
WL_NONE("Need to set Power-save mode\n");
if (changed & IEEE80211_CONF_CHANGE_POWER) {
WL_NONE("%s: Setting tx power to %d dbm\n",
__func__, conf->power_level);
if (wlc_iovar_setint
(wl->wlc, "qtxpower", conf->power_level * 4)) {
WL_ERROR("%s: Error setting power_level\n", __func__);
err = -EIO;
goto config_out;
}
wlc_iovar_getint(wl->wlc, "qtxpower", &new_int);
if (new_int != (conf->power_level * 4))
WL_ERROR("%s: Power level req != actual, %d %d\n",
__func__, conf->power_level * 4, new_int);
}
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
err = ieee_set_channel(hw, conf->channel, conf->channel_type);
}
if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
WL_NONE("%s: srl %d, lrl %d\n",
__func__,
conf->short_frame_max_tx_count,
conf->long_frame_max_tx_count);
if (wlc_set
(wl->wlc, WLC_SET_SRL,
conf->short_frame_max_tx_count) < 0) {
WL_ERROR("%s: Error setting srl\n", __func__);
err = -EIO;
goto config_out;
}
if (wlc_set(wl->wlc, WLC_SET_LRL, conf->long_frame_max_tx_count)
< 0) {
WL_ERROR("%s: Error setting lrl\n", __func__);
err = -EIO;
goto config_out;
}
}
config_out:
WL_UNLOCK(wl);
return err;
}
static void
wl_ops_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *info, u32 changed)
{
struct wl_info *wl = HW_TO_WL(hw);
int val;
if (changed & BSS_CHANGED_ASSOC) {
WL_ERROR("Associated:\t%s\n", info->assoc ? "True" : "False");
/* association status changed (associated/disassociated)
* also implies a change in the AID.
*/
}
if (changed & BSS_CHANGED_ERP_CTS_PROT) {
WL_NONE("Use_cts_prot:\t%s Implement me\n",
info->use_cts_prot ? "True" : "False");
/* CTS protection changed */
}
if (changed & BSS_CHANGED_ERP_PREAMBLE) {
WL_NONE("Short preamble:\t%s Implement me\n",
info->use_short_preamble ? "True" : "False");
/* preamble changed */
}
if (changed & BSS_CHANGED_ERP_SLOT) {
WL_NONE("Changing short slot:\t%s\n",
info->use_short_slot ? "True" : "False");
if (info->use_short_slot)
val = 1;
else
val = 0;
wlc_set(wl->wlc, WLC_SET_SHORTSLOT_OVERRIDE, val);
/* slot timing changed */
}
if (changed & BSS_CHANGED_HT) {
WL_NONE("%s: HT mode - Implement me\n", __func__);
/* 802.11n parameters changed */
}
if (changed & BSS_CHANGED_BASIC_RATES) {
WL_NONE("Need to change Basic Rates:\t0x%x! Implement me\n",
(u32) info->basic_rates);
/* Basic rateset changed */
}
if (changed & BSS_CHANGED_BEACON_INT) {
WL_NONE("Beacon Interval:\t%d Implement me\n",
info->beacon_int);
/* Beacon interval changed */
}
if (changed & BSS_CHANGED_BSSID) {
WL_NONE("new BSSID:\taid %d bss:%pM\n",
info->aid, info->bssid);
/* BSSID changed, for whatever reason (IBSS and managed mode) */
/* FIXME: need to store bssid in bsscfg */
wlc_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET,
(struct ether_addr *)info->bssid);
}
if (changed & BSS_CHANGED_BEACON) {
WL_ERROR("BSS_CHANGED_BEACON\n");
/* Beacon data changed, retrieve new beacon (beaconing modes) */
}
if (changed & BSS_CHANGED_BEACON_ENABLED) {
WL_ERROR("Beacon enabled:\t%s\n",
info->enable_beacon ? "True" : "False");
/* Beaconing should be enabled/disabled (beaconing modes) */
}
return;
}
static void
wl_ops_configure_filter(struct ieee80211_hw *hw,
unsigned int changed_flags,
unsigned int *total_flags, u64 multicast)
{
struct wl_info *wl = hw->priv;
changed_flags &= MAC_FILTERS;
*total_flags &= MAC_FILTERS;
if (changed_flags & FIF_PROMISC_IN_BSS)
WL_ERROR("FIF_PROMISC_IN_BSS\n");
if (changed_flags & FIF_ALLMULTI)
WL_ERROR("FIF_ALLMULTI\n");
if (changed_flags & FIF_FCSFAIL)
WL_ERROR("FIF_FCSFAIL\n");
if (changed_flags & FIF_PLCPFAIL)
WL_ERROR("FIF_PLCPFAIL\n");
if (changed_flags & FIF_CONTROL)
WL_ERROR("FIF_CONTROL\n");
if (changed_flags & FIF_OTHER_BSS)
WL_ERROR("FIF_OTHER_BSS\n");
if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
WL_NONE("FIF_BCN_PRBRESP_PROMISC\n");
WL_LOCK(wl);
if (*total_flags & FIF_BCN_PRBRESP_PROMISC) {
wl->pub->mac80211_state |= MAC80211_PROMISC_BCNS;
wlc_mac_bcn_promisc_change(wl->wlc, 1);
} else {
wlc_mac_bcn_promisc_change(wl->wlc, 0);
wl->pub->mac80211_state &= ~MAC80211_PROMISC_BCNS;
}
WL_UNLOCK(wl);
}
return;
}
static int
wl_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set)
{
WL_ERROR("%s: Enter\n", __func__);
return 0;
}
static void wl_ops_sw_scan_start(struct ieee80211_hw *hw)
{
struct wl_info *wl = hw->priv;
WL_NONE("Scan Start\n");
WL_LOCK(wl);
wlc_scan_start(wl->wlc);
WL_UNLOCK(wl);
return;
}
static void wl_ops_sw_scan_complete(struct ieee80211_hw *hw)
{
struct wl_info *wl = hw->priv;
WL_NONE("Scan Complete\n");
WL_LOCK(wl);
wlc_scan_stop(wl->wlc);
WL_UNLOCK(wl);
return;
}
static void wl_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf)
{
WL_ERROR("%s: Enter\n", __func__);
return;
}
static int
wl_ops_get_stats(struct ieee80211_hw *hw,
struct ieee80211_low_level_stats *stats)
{
WL_ERROR("%s: Enter\n", __func__);
return 0;
}
static int wl_ops_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
{
WL_ERROR("%s: Enter\n", __func__);
return 0;
}
static void
wl_ops_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
enum sta_notify_cmd cmd, struct ieee80211_sta *sta)
{
WL_NONE("%s: Enter\n", __func__);
switch (cmd) {
default:
WL_ERROR("%s: Unknown cmd = %d\n", __func__, cmd);
break;
}
return;
}
static int
wl_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
const struct ieee80211_tx_queue_params *params)
{
struct wl_info *wl = hw->priv;
WL_NONE("%s: Enter (WME config)\n", __func__);
WL_NONE("queue %d, txop %d, cwmin %d, cwmax %d, aifs %d\n", queue,
params->txop, params->cw_min, params->cw_max, params->aifs);
WL_LOCK(wl);
wlc_wme_setparams(wl->wlc, queue, (void *)params, true);
WL_UNLOCK(wl);
return 0;
}
static u64 wl_ops_get_tsf(struct ieee80211_hw *hw)
{
WL_ERROR("%s: Enter\n", __func__);
return 0;
}
static int
wl_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct scb *scb;
int i;
struct wl_info *wl = hw->priv;
/* Init the scb */
scb = (struct scb *)sta->drv_priv;
memset(scb, 0, sizeof(struct scb));
for (i = 0; i < NUMPRIO; i++)
scb->seqctl[i] = 0xFFFF;
scb->seqctl_nonqos = 0xFFFF;
scb->magic = SCB_MAGIC;
wl->pub->global_scb = scb;
wl->pub->global_ampdu = &(scb->scb_ampdu);
wl->pub->global_ampdu->scb = scb;
wl->pub->global_ampdu->max_pdu = 16;
pktq_init(&scb->scb_ampdu.txq, AMPDU_MAX_SCB_TID,
AMPDU_MAX_SCB_TID * PKTQ_LEN_DEFAULT);
sta->ht_cap.ht_supported = true;
sta->ht_cap.ampdu_factor = AMPDU_RX_FACTOR_64K;
sta->ht_cap.ampdu_density = AMPDU_DEF_MPDU_DENSITY;
sta->ht_cap.cap = IEEE80211_HT_CAP_GRN_FLD |
IEEE80211_HT_CAP_SGI_20 |
IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT;
/* minstrel_ht initiates addBA on our behalf by calling ieee80211_start_tx_ba_session() */
return 0;
}
static int
wl_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
WL_NONE("%s: Enter\n", __func__);
return 0;
}
static int
wl_ampdu_action(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
enum ieee80211_ampdu_mlme_action action,
struct ieee80211_sta *sta, u16 tid, u16 *ssn)
{
#if defined(BCMDBG)
struct scb *scb = (struct scb *)sta->drv_priv;
#endif
struct wl_info *wl = hw->priv;
ASSERT(scb->magic == SCB_MAGIC);
switch (action) {
case IEEE80211_AMPDU_RX_START:
WL_NONE("%s: action = IEEE80211_AMPDU_RX_START\n", __func__);
break;
case IEEE80211_AMPDU_RX_STOP:
WL_NONE("%s: action = IEEE80211_AMPDU_RX_STOP\n", __func__);
break;
case IEEE80211_AMPDU_TX_START:
if (!wlc_aggregatable(wl->wlc, tid)) {
/* WL_ERROR("START: tid %d is not agg' able, return FAILURE to stack\n", tid); */
return -1;
}
/* XXX: Use the starting sequence number provided ... */
*ssn = 0;
ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
break;
case IEEE80211_AMPDU_TX_STOP:
ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
break;
case IEEE80211_AMPDU_TX_OPERATIONAL:
/* Not sure what to do here */
/* Power save wakeup */
WL_NONE("%s: action = IEEE80211_AMPDU_TX_OPERATIONAL\n",
__func__);
break;
default:
WL_ERROR("%s: Invalid command, ignoring\n", __func__);
}
return 0;
}
static const struct ieee80211_ops wl_ops = {
.tx = wl_ops_tx,
.start = wl_ops_start,
.stop = wl_ops_stop,
.add_interface = wl_ops_add_interface,
.remove_interface = wl_ops_remove_interface,
.config = wl_ops_config,
.bss_info_changed = wl_ops_bss_info_changed,
.configure_filter = wl_ops_configure_filter,
.set_tim = wl_ops_set_tim,
.sw_scan_start = wl_ops_sw_scan_start,
.sw_scan_complete = wl_ops_sw_scan_complete,
.set_tsf = wl_ops_set_tsf,
.get_stats = wl_ops_get_stats,
.set_rts_threshold = wl_ops_set_rts_threshold,
.sta_notify = wl_ops_sta_notify,
.conf_tx = wl_ops_conf_tx,
.get_tsf = wl_ops_get_tsf,
.sta_add = wl_sta_add,
.sta_remove = wl_sta_remove,
.ampdu_action = wl_ampdu_action,
};
static int wl_set_hint(struct wl_info *wl, char *abbrev)
{
WL_ERROR("%s: Sending country code %c%c to MAC80211\n",
__func__, abbrev[0], abbrev[1]);
return regulatory_hint(wl->pub->ieee_hw->wiphy, abbrev);
}
/**
* attach to the WL device.
*
* Attach to the WL device identified by vendor and device parameters.
* regs is a host accessible memory address pointing to WL device registers.
*
* wl_attach is not defined as static because in the case where no bus
* is defined, wl_attach will never be called, and thus, gcc will issue
* a warning that this function is defined but not used if we declare
* it as static.
*/
static struct wl_info *wl_attach(u16 vendor, u16 device, unsigned long regs,
uint bustype, void *btparam, uint irq)
{
struct wl_info *wl;
struct osl_info *osh;
int unit, err;
unsigned long base_addr;
struct ieee80211_hw *hw;
u8 perm[ETH_ALEN];
unit = wl_found;
err = 0;
if (unit < 0) {
WL_ERROR("wl%d: unit number overflow, exiting\n", unit);
return NULL;
}
osh = osl_attach(btparam, bustype);
ASSERT(osh);
/* allocate private info */
hw = pci_get_drvdata(btparam); /* btparam == pdev */
wl = hw->priv;
ASSERT(wl);
wl->osh = osh;
atomic_set(&wl->callbacks, 0);
/* setup the bottom half handler */
tasklet_init(&wl->tasklet, wl_dpc, (unsigned long) wl);
base_addr = regs;
if (bustype == PCI_BUS) {
wl->piomode = false;
} else if (bustype == RPC_BUS) {
/* Do nothing */
} else {
bustype = PCI_BUS;
WL_TRACE("force to PCI\n");
}
wl->bcm_bustype = bustype;
wl->regsva = ioremap_nocache(base_addr, PCI_BAR0_WINSZ);
if (wl->regsva == NULL) {
WL_ERROR("wl%d: ioremap() failed\n", unit);
goto fail;
}
spin_lock_init(&wl->lock);
spin_lock_init(&wl->isr_lock);
/* prepare ucode */
if (wl_request_fw(wl, (struct pci_dev *)btparam)) {
printf("%s: Failed to find firmware usually in %s\n",
KBUILD_MODNAME, "/lib/firmware/brcm");
wl_release_fw(wl);
wl_remove((struct pci_dev *)btparam);
goto fail1;
}
/* common load-time initialization */
wl->wlc = wlc_attach((void *)wl, vendor, device, unit, wl->piomode, osh,
wl->regsva, wl->bcm_bustype, btparam, &err);
wl_release_fw(wl);
if (!wl->wlc) {
printf("%s: wlc_attach() failed with code %d\n",
KBUILD_MODNAME, err);
goto fail;
}
wl->pub = wlc_pub(wl->wlc);
wl->pub->ieee_hw = hw;
ASSERT(wl->pub->ieee_hw);
ASSERT(wl->pub->ieee_hw->priv == wl);
if (wlc_iovar_setint(wl->wlc, "mpc", 0)) {
WL_ERROR("wl%d: Error setting MPC variable to 0\n", unit);
}
/* register our interrupt handler */
if (request_irq(irq, wl_isr, IRQF_SHARED, KBUILD_MODNAME, wl)) {
WL_ERROR("wl%d: request_irq() failed\n", unit);
goto fail;
}
wl->irq = irq;
/* register module */
wlc_module_register(wl->pub, NULL, "linux", wl, NULL, wl_linux_watchdog,
NULL);
if (ieee_hw_init(hw)) {
WL_ERROR("wl%d: %s: ieee_hw_init failed!\n", unit, __func__);
goto fail;
}
bcopy(&wl->pub->cur_etheraddr, perm, ETH_ALEN);
ASSERT(is_valid_ether_addr(perm));
SET_IEEE80211_PERM_ADDR(hw, perm);
err = ieee80211_register_hw(hw);
if (err) {
WL_ERROR("%s: ieee80211_register_hw failed, status %d\n",
__func__, err);
}
if (wl->pub->srom_ccode[0])
err = wl_set_hint(wl, wl->pub->srom_ccode);
else
err = wl_set_hint(wl, "US");
if (err) {
WL_ERROR("%s: regulatory_hint failed, status %d\n",
__func__, err);
}
WL_ERROR("wl%d: Broadcom BCM43xx 802.11 MAC80211 Driver (" PHY_VERSION_STR ")",
unit);
#ifdef BCMDBG
printf(" (Compiled at " __TIME__ " on " __DATE__ ")");
#endif /* BCMDBG */
printf("\n");
wl_found++;
return wl;
fail:
wl_free(wl);
fail1:
return NULL;
}
#define CHAN2GHZ(channel, freqency, chflags) { \
.band = IEEE80211_BAND_2GHZ, \
.center_freq = (freqency), \
.hw_value = (channel), \
.flags = chflags, \
.max_antenna_gain = 0, \
.max_power = 19, \
}
static struct ieee80211_channel wl_2ghz_chantable[] = {
CHAN2GHZ(1, 2412, IEEE80211_CHAN_NO_HT40MINUS),
CHAN2GHZ(2, 2417, IEEE80211_CHAN_NO_HT40MINUS),
CHAN2GHZ(3, 2422, IEEE80211_CHAN_NO_HT40MINUS),
CHAN2GHZ(4, 2427, IEEE80211_CHAN_NO_HT40MINUS),
CHAN2GHZ(5, 2432, 0),
CHAN2GHZ(6, 2437, 0),
CHAN2GHZ(7, 2442, 0),
CHAN2GHZ(8, 2447, IEEE80211_CHAN_NO_HT40PLUS),
CHAN2GHZ(9, 2452, IEEE80211_CHAN_NO_HT40PLUS),
CHAN2GHZ(10, 2457, IEEE80211_CHAN_NO_HT40PLUS),
CHAN2GHZ(11, 2462, IEEE80211_CHAN_NO_HT40PLUS),
CHAN2GHZ(12, 2467,
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_NO_HT40PLUS),
CHAN2GHZ(13, 2472,
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_NO_HT40PLUS),
CHAN2GHZ(14, 2484,
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
};
#define CHAN5GHZ(channel, chflags) { \
.band = IEEE80211_BAND_5GHZ, \
.center_freq = 5000 + 5*(channel), \
.hw_value = (channel), \
.flags = chflags, \
.max_antenna_gain = 0, \
.max_power = 21, \
}
static struct ieee80211_channel wl_5ghz_nphy_chantable[] = {
/* UNII-1 */
CHAN5GHZ(36, IEEE80211_CHAN_NO_HT40MINUS),
CHAN5GHZ(40, IEEE80211_CHAN_NO_HT40PLUS),
CHAN5GHZ(44, IEEE80211_CHAN_NO_HT40MINUS),
CHAN5GHZ(48, IEEE80211_CHAN_NO_HT40PLUS),
/* UNII-2 */
CHAN5GHZ(52,
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
CHAN5GHZ(56,
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
CHAN5GHZ(60,
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
CHAN5GHZ(64,
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
/* MID */
CHAN5GHZ(100,
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
CHAN5GHZ(104,
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
CHAN5GHZ(108,
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
CHAN5GHZ(112,
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
CHAN5GHZ(116,
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
CHAN5GHZ(120,
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
CHAN5GHZ(124,
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
CHAN5GHZ(128,
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
CHAN5GHZ(132,
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
CHAN5GHZ(136,
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
CHAN5GHZ(140,
IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS |
IEEE80211_CHAN_NO_HT40MINUS),
/* UNII-3 */
CHAN5GHZ(149, IEEE80211_CHAN_NO_HT40MINUS),
CHAN5GHZ(153, IEEE80211_CHAN_NO_HT40PLUS),
CHAN5GHZ(157, IEEE80211_CHAN_NO_HT40MINUS),
CHAN5GHZ(161, IEEE80211_CHAN_NO_HT40PLUS),
CHAN5GHZ(165, IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
};
#define RATE(rate100m, _flags) { \
.bitrate = (rate100m), \
.flags = (_flags), \
.hw_value = (rate100m / 5), \
}
static struct ieee80211_rate wl_legacy_ratetable[] = {
RATE(10, 0),
RATE(20, IEEE80211_RATE_SHORT_PREAMBLE),
RATE(55, IEEE80211_RATE_SHORT_PREAMBLE),
RATE(110, IEEE80211_RATE_SHORT_PREAMBLE),
RATE(60, 0),
RATE(90, 0),
RATE(120, 0),
RATE(180, 0),
RATE(240, 0),
RATE(360, 0),
RATE(480, 0),
RATE(540, 0),
};
static struct ieee80211_supported_band wl_band_2GHz_nphy = {
.band = IEEE80211_BAND_2GHZ,
.channels = wl_2ghz_chantable,
.n_channels = ARRAY_SIZE(wl_2ghz_chantable),
.bitrates = wl_legacy_ratetable,
.n_bitrates = ARRAY_SIZE(wl_legacy_ratetable),
.ht_cap = {
/* from include/linux/ieee80211.h */
.cap = IEEE80211_HT_CAP_GRN_FLD |
IEEE80211_HT_CAP_SGI_20 |
IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT,
.ht_supported = true,
.ampdu_factor = AMPDU_RX_FACTOR_64K,
.ampdu_density = AMPDU_DEF_MPDU_DENSITY,
.mcs = {
/* placeholders for now */
.rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
.rx_highest = 500,
.tx_params = IEEE80211_HT_MCS_TX_DEFINED}
}
};
static struct ieee80211_supported_band wl_band_5GHz_nphy = {
.band = IEEE80211_BAND_5GHZ,
.channels = wl_5ghz_nphy_chantable,
.n_channels = ARRAY_SIZE(wl_5ghz_nphy_chantable),
.bitrates = wl_legacy_ratetable + 4,
.n_bitrates = ARRAY_SIZE(wl_legacy_ratetable) - 4,
.ht_cap = {
/* use IEEE80211_HT_CAP_* from include/linux/ieee80211.h */
.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 */
.ht_supported = true,
.ampdu_factor = AMPDU_RX_FACTOR_64K,
.ampdu_density = AMPDU_DEF_MPDU_DENSITY,
.mcs = {
/* placeholders for now */
.rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
.rx_highest = 500,
.tx_params = IEEE80211_HT_MCS_TX_DEFINED}
}
};
static int ieee_hw_rate_init(struct ieee80211_hw *hw)
{
struct wl_info *wl = HW_TO_WL(hw);
int has_5g;
char phy_list[4];
has_5g = 0;
hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
if (wlc_get(wl->wlc, WLC_GET_PHYLIST, (int *)&phy_list) < 0) {
WL_ERROR("Phy list failed\n");
}
WL_NONE("%s: phylist = %c\n", __func__, phy_list[0]);
if (phy_list[0] == 'n' || phy_list[0] == 'c') {
if (phy_list[0] == 'c') {
/* Single stream */
wl_band_2GHz_nphy.ht_cap.mcs.rx_mask[1] = 0;
wl_band_2GHz_nphy.ht_cap.mcs.rx_highest = 72;
}
hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl_band_2GHz_nphy;
} else {
BUG();
return -1;
}
/* Assume all bands use the same phy. True for 11n devices. */
if (NBANDS_PUB(wl->pub) > 1) {
has_5g++;
if (phy_list[0] == 'n' || phy_list[0] == 'c') {
hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
&wl_band_5GHz_nphy;
} else {
return -1;
}
}
WL_NONE("%s: 2ghz = %d, 5ghz = %d\n", __func__, 1, has_5g);
return 0;
}
static int ieee_hw_init(struct ieee80211_hw *hw)
{
hw->flags = IEEE80211_HW_SIGNAL_DBM
/* | IEEE80211_HW_CONNECTION_MONITOR What is this? */
| IEEE80211_HW_REPORTS_TX_ACK_STATUS
| IEEE80211_HW_AMPDU_AGGREGATION;
hw->extra_tx_headroom = wlc_get_header_len();
/* FIXME: should get this from wlc->machwcap */
hw->queues = 4;
/* FIXME: this doesn't seem to be used properly in minstrel_ht.
* mac80211/status.c:ieee80211_tx_status() checks this value,
* but mac80211/rc80211_minstrel_ht.c:minstrel_ht_get_rate()
* appears to always set 3 rates
*/
hw->max_rates = 2; /* Primary rate and 1 fallback rate */
hw->channel_change_time = 7 * 1000; /* channel change time is dependant on chip and band */
hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
hw->rate_control_algorithm = "minstrel_ht";
hw->sta_data_size = sizeof(struct scb);
return ieee_hw_rate_init(hw);
}
/**
* determines if a device is a WL device, and if so, attaches it.
*
* This function determines if a device pointed to by pdev is a WL device,
* and if so, performs a wl_attach() on it.
*
*/
int __devinit
wl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
int rc;
struct wl_info *wl;
struct ieee80211_hw *hw;
u32 val;
ASSERT(pdev);
WL_TRACE("%s: bus %d slot %d func %d irq %d\n",
__func__, pdev->bus->number, PCI_SLOT(pdev->devfn),
PCI_FUNC(pdev->devfn), pdev->irq);
if ((pdev->vendor != PCI_VENDOR_ID_BROADCOM) ||
(((pdev->device & 0xff00) != 0x4300) &&
((pdev->device & 0xff00) != 0x4700) &&
((pdev->device < 43000) || (pdev->device > 43999))))
return -ENODEV;
rc = pci_enable_device(pdev);
if (rc) {
WL_ERROR("%s: Cannot enable device %d-%d_%d\n",
__func__, pdev->bus->number, PCI_SLOT(pdev->devfn),
PCI_FUNC(pdev->devfn));
return -ENODEV;
}
pci_set_master(pdev);
pci_read_config_dword(pdev, 0x40, &val);
if ((val & 0x0000ff00) != 0)
pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
hw = ieee80211_alloc_hw(sizeof(struct wl_info), &wl_ops);
if (!hw) {
WL_ERROR("%s: ieee80211_alloc_hw failed\n", __func__);
rc = -ENOMEM;
goto err_1;
}
SET_IEEE80211_DEV(hw, &pdev->dev);
pci_set_drvdata(pdev, hw);
memset(hw->priv, 0, sizeof(*wl));
wl = wl_attach(pdev->vendor, pdev->device, pci_resource_start(pdev, 0),
PCI_BUS, pdev, pdev->irq);
if (!wl) {
WL_ERROR("%s: %s: wl_attach failed!\n",
KBUILD_MODNAME, __func__);
return -ENODEV;
}
return 0;
err_1:
WL_ERROR("%s: err_1: Major hoarkage\n", __func__);
return 0;
}
static int wl_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct wl_info *wl;
struct ieee80211_hw *hw;
WL_TRACE("wl: wl_suspend\n");
hw = pci_get_drvdata(pdev);
wl = HW_TO_WL(hw);
if (!wl) {
WL_ERROR("wl: wl_suspend: pci_get_drvdata failed\n");
return -ENODEV;
}
/* only need to flag hw is down for proper resume */
WL_LOCK(wl);
wl->pub->hw_up = false;
WL_UNLOCK(wl);
pci_save_state(pdev);
pci_disable_device(pdev);
return pci_set_power_state(pdev, PCI_D3hot);
}
static int wl_resume(struct pci_dev *pdev)
{
struct wl_info *wl;
struct ieee80211_hw *hw;
int err = 0;
u32 val;
WL_TRACE("wl: wl_resume\n");
hw = pci_get_drvdata(pdev);
wl = HW_TO_WL(hw);
if (!wl) {
WL_ERROR("wl: wl_resume: pci_get_drvdata failed\n");
return -ENODEV;
}
err = pci_set_power_state(pdev, PCI_D0);
if (err)
return err;
pci_restore_state(pdev);
err = pci_enable_device(pdev);
if (err)
return err;
pci_set_master(pdev);
pci_read_config_dword(pdev, 0x40, &val);
if ((val & 0x0000ff00) != 0)
pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
/*
* done. driver will be put in up state
* in wl_ops_add_interface() call.
*/
return err;
}
static void wl_remove(struct pci_dev *pdev)
{
struct wl_info *wl;
struct ieee80211_hw *hw;
hw = pci_get_drvdata(pdev);
wl = HW_TO_WL(hw);
if (!wl) {
WL_ERROR("wl: wl_remove: pci_get_drvdata failed\n");
return;
}
if (!wlc_chipmatch(pdev->vendor, pdev->device)) {
WL_ERROR("wl: wl_remove: wlc_chipmatch failed\n");
return;
}
if (wl->wlc) {
ieee80211_unregister_hw(hw);
WL_LOCK(wl);
wl_down(wl);
WL_UNLOCK(wl);
WL_NONE("%s: Down\n", __func__);
}
pci_disable_device(pdev);
wl_free(wl);
pci_set_drvdata(pdev, NULL);
ieee80211_free_hw(hw);
}
static struct pci_driver wl_pci_driver = {
.name = "brcm80211",
.probe = wl_pci_probe,
.suspend = wl_suspend,
.resume = wl_resume,
.remove = __devexit_p(wl_remove),
.id_table = wl_id_table,
};
/**
* This is the main entry point for the WL driver.
*
* This function determines if a device pointed to by pdev is a WL device,
* and if so, performs a wl_attach() on it.
*
*/
static int __init wl_module_init(void)
{
int error = -ENODEV;
#ifdef BCMDBG
if (msglevel != 0xdeadbeef)
wl_msg_level = msglevel;
else {
char *var = getvar(NULL, "wl_msglevel");
if (var)
wl_msg_level = simple_strtoul(var, NULL, 0);
}
{
extern u32 phyhal_msg_level;
if (phymsglevel != 0xdeadbeef)
phyhal_msg_level = phymsglevel;
else {
char *var = getvar(NULL, "phy_msglevel");
if (var)
phyhal_msg_level = simple_strtoul(var, NULL, 0);
}
}
#endif /* BCMDBG */
error = pci_register_driver(&wl_pci_driver);
if (!error)
return 0;
return error;
}
/**
* This function unloads the WL driver from the system.
*
* This function unconditionally unloads the WL driver module from the
* system.
*
*/
static void __exit wl_module_exit(void)
{
pci_unregister_driver(&wl_pci_driver);
}
module_init(wl_module_init);
module_exit(wl_module_exit);
/**
* This function frees the WL per-device resources.
*
* This function frees resources owned by the WL device pointed to
* by the wl parameter.
*
*/
void wl_free(struct wl_info *wl)
{
wl_timer_t *t, *next;
struct osl_info *osh;
ASSERT(wl);
/* free ucode data */
if (wl->fw.fw_cnt)
wl_ucode_data_free();
if (wl->irq)
free_irq(wl->irq, wl);
/* kill dpc */
tasklet_kill(&wl->tasklet);
if (wl->pub) {
wlc_module_unregister(wl->pub, "linux", wl);
}
/* free common resources */
if (wl->wlc) {
wlc_detach(wl->wlc);
wl->wlc = NULL;
wl->pub = NULL;
}
/* virtual interface deletion is deferred so we cannot spinwait */
/* wait for all pending callbacks to complete */
while (atomic_read(&wl->callbacks) > 0)
schedule();
/* free timers */
for (t = wl->timers; t; t = next) {
next = t->next;
#ifdef BCMDBG
if (t->name)
kfree(t->name);
#endif
kfree(t);
}
osh = wl->osh;
/*
* unregister_netdev() calls get_stats() which may read chip registers
* so we cannot unmap the chip registers until after calling unregister_netdev() .
*/
if (wl->regsva && wl->bcm_bustype != SDIO_BUS &&
wl->bcm_bustype != JTAG_BUS) {
iounmap((void *)wl->regsva);
}
wl->regsva = NULL;
osl_detach(osh);
}
/* transmit a packet */
static int BCMFASTPATH wl_start(struct sk_buff *skb, struct wl_info *wl)
{
if (!wl)
return -ENETDOWN;
return wl_start_int(wl, WL_TO_HW(wl), skb);
}
static int BCMFASTPATH
wl_start_int(struct wl_info *wl, struct ieee80211_hw *hw, struct sk_buff *skb)
{
wlc_sendpkt_mac80211(wl->wlc, skb, hw);
return NETDEV_TX_OK;
}
void wl_txflowcontrol(struct wl_info *wl, struct wl_if *wlif, bool state,
int prio)
{
WL_ERROR("Shouldn't be here %s\n", __func__);
}
void wl_init(struct wl_info *wl)
{
WL_TRACE("wl%d: wl_init\n", wl->pub->unit);
wl_reset(wl);
wlc_init(wl->wlc);
}
uint wl_reset(struct wl_info *wl)
{
WL_TRACE("wl%d: wl_reset\n", wl->pub->unit);
wlc_reset(wl->wlc);
/* dpc will not be rescheduled */
wl->resched = 0;
return 0;
}
/*
* These are interrupt on/off entry points. Disable interrupts
* during interrupt state transition.
*/
void BCMFASTPATH wl_intrson(struct wl_info *wl)
{
unsigned long flags;
INT_LOCK(wl, flags);
wlc_intrson(wl->wlc);
INT_UNLOCK(wl, flags);
}
bool wl_alloc_dma_resources(struct wl_info *wl, uint addrwidth)
{
return true;
}
u32 BCMFASTPATH wl_intrsoff(struct wl_info *wl)
{
unsigned long flags;
u32 status;
INT_LOCK(wl, flags);
status = wlc_intrsoff(wl->wlc);
INT_UNLOCK(wl, flags);
return status;
}
void wl_intrsrestore(struct wl_info *wl, u32 macintmask)
{
unsigned long flags;
INT_LOCK(wl, flags);
wlc_intrsrestore(wl->wlc, macintmask);
INT_UNLOCK(wl, flags);
}
int wl_up(struct wl_info *wl)
{
int error = 0;
if (wl->pub->up)
return 0;
error = wlc_up(wl->wlc);
return error;
}
void wl_down(struct wl_info *wl)
{
uint callbacks, ret_val = 0;
/* call common down function */
ret_val = wlc_down(wl->wlc);
callbacks = atomic_read(&wl->callbacks) - ret_val;
/* wait for down callbacks to complete */
WL_UNLOCK(wl);
/* For HIGH_only driver, it's important to actually schedule other work,
* not just spin wait since everything runs at schedule level
*/
SPINWAIT((atomic_read(&wl->callbacks) > callbacks), 100 * 1000);
WL_LOCK(wl);
}
irqreturn_t BCMFASTPATH wl_isr(int irq, void *dev_id)
{
struct wl_info *wl;
bool ours, wantdpc;
unsigned long flags;
wl = (struct wl_info *) dev_id;
WL_ISRLOCK(wl, flags);
/* call common first level interrupt handler */
ours = wlc_isr(wl->wlc, &wantdpc);
if (ours) {
/* if more to do... */
if (wantdpc) {
/* ...and call the second level interrupt handler */
/* schedule dpc */
ASSERT(wl->resched == false);
tasklet_schedule(&wl->tasklet);
}
}
WL_ISRUNLOCK(wl, flags);
return IRQ_RETVAL(ours);
}
static void BCMFASTPATH wl_dpc(unsigned long data)
{
struct wl_info *wl;
wl = (struct wl_info *) data;
WL_LOCK(wl);
/* call the common second level interrupt handler */
if (wl->pub->up) {
if (wl->resched) {
unsigned long flags;
INT_LOCK(wl, flags);
wlc_intrsupd(wl->wlc);
INT_UNLOCK(wl, flags);
}
wl->resched = wlc_dpc(wl->wlc, true);
}
/* wlc_dpc() may bring the driver down */
if (!wl->pub->up)
goto done;
/* re-schedule dpc */
if (wl->resched)
tasklet_schedule(&wl->tasklet);
else {
/* re-enable interrupts */
wl_intrson(wl);
}
done:
WL_UNLOCK(wl);
}
static void wl_link_up(struct wl_info *wl, char *ifname)
{
WL_ERROR("wl%d: link up (%s)\n", wl->pub->unit, ifname);
}
static void wl_link_down(struct wl_info *wl, char *ifname)
{
WL_ERROR("wl%d: link down (%s)\n", wl->pub->unit, ifname);
}
void wl_event(struct wl_info *wl, char *ifname, wlc_event_t *e)
{
switch (e->event.event_type) {
case WLC_E_LINK:
case WLC_E_NDIS_LINK:
if (e->event.flags & WLC_EVENT_MSG_LINK)
wl_link_up(wl, ifname);
else
wl_link_down(wl, ifname);
break;
case WLC_E_RADIO:
break;
}
}
static void wl_timer(unsigned long data)
{
_wl_timer((wl_timer_t *) data);
}
static void _wl_timer(wl_timer_t *t)
{
WL_LOCK(t->wl);
if (t->set) {
if (t->periodic) {
t->timer.expires = jiffies + t->ms * HZ / 1000;
atomic_inc(&t->wl->callbacks);
add_timer(&t->timer);
t->set = true;
} else
t->set = false;
t->fn(t->arg);
}
atomic_dec(&t->wl->callbacks);
WL_UNLOCK(t->wl);
}
wl_timer_t *wl_init_timer(struct wl_info *wl, void (*fn) (void *arg), void *arg,
const char *name)
{
wl_timer_t *t;
t = kmalloc(sizeof(wl_timer_t), GFP_ATOMIC);
if (!t) {
WL_ERROR("wl%d: wl_init_timer: out of memory\n", wl->pub->unit);
return 0;
}
memset(t, 0, sizeof(wl_timer_t));
init_timer(&t->timer);
t->timer.data = (unsigned long) t;
t->timer.function = wl_timer;
t->wl = wl;
t->fn = fn;
t->arg = arg;
t->next = wl->timers;
wl->timers = t;
#ifdef BCMDBG
t->name = kmalloc(strlen(name) + 1, GFP_ATOMIC);
if (t->name)
strcpy(t->name, name);
#endif
return t;
}
/* BMAC_NOTE: Add timer adds only the kernel timer since it's going to be more accurate
* as well as it's easier to make it periodic
*/
void wl_add_timer(struct wl_info *wl, wl_timer_t *t, uint ms, int periodic)
{
#ifdef BCMDBG
if (t->set) {
WL_ERROR("%s: Already set. Name: %s, per %d\n",
__func__, t->name, periodic);
}
#endif
ASSERT(!t->set);
t->ms = ms;
t->periodic = (bool) periodic;
t->set = true;
t->timer.expires = jiffies + ms * HZ / 1000;
atomic_inc(&wl->callbacks);
add_timer(&t->timer);
}
/* return true if timer successfully deleted, false if still pending */
bool wl_del_timer(struct wl_info *wl, wl_timer_t *t)
{
if (t->set) {
t->set = false;
if (!del_timer(&t->timer)) {
return false;
}
atomic_dec(&wl->callbacks);
}
return true;
}
void wl_free_timer(struct wl_info *wl, wl_timer_t *t)
{
wl_timer_t *tmp;
/* delete the timer in case it is active */
wl_del_timer(wl, t);
if (wl->timers == t) {
wl->timers = wl->timers->next;
#ifdef BCMDBG
if (t->name)
kfree(t->name);
#endif
kfree(t);
return;
}
tmp = wl->timers;
while (tmp) {
if (tmp->next == t) {
tmp->next = t->next;
#ifdef BCMDBG
if (t->name)
kfree(t->name);
#endif
kfree(t);
return;
}
tmp = tmp->next;
}
}
static int wl_linux_watchdog(void *ctx)
{
struct wl_info *wl = (struct wl_info *) ctx;
struct net_device_stats *stats = NULL;
uint id;
/* refresh stats */
if (wl->pub->up) {
ASSERT(wl->stats_id < 2);
id = 1 - wl->stats_id;
stats = &wl->stats_watchdog[id];
stats->rx_packets = WLCNTVAL(wl->pub->_cnt->rxframe);
stats->tx_packets = WLCNTVAL(wl->pub->_cnt->txframe);
stats->rx_bytes = WLCNTVAL(wl->pub->_cnt->rxbyte);
stats->tx_bytes = WLCNTVAL(wl->pub->_cnt->txbyte);
stats->rx_errors = WLCNTVAL(wl->pub->_cnt->rxerror);
stats->tx_errors = WLCNTVAL(wl->pub->_cnt->txerror);
stats->collisions = 0;
stats->rx_length_errors = 0;
stats->rx_over_errors = WLCNTVAL(wl->pub->_cnt->rxoflo);
stats->rx_crc_errors = WLCNTVAL(wl->pub->_cnt->rxcrc);
stats->rx_frame_errors = 0;
stats->rx_fifo_errors = WLCNTVAL(wl->pub->_cnt->rxoflo);
stats->rx_missed_errors = 0;
stats->tx_fifo_errors = WLCNTVAL(wl->pub->_cnt->txuflo);
wl->stats_id = id;
}
return 0;
}
struct wl_fw_hdr {
u32 offset;
u32 len;
u32 idx;
};
char *wl_firmwares[WL_MAX_FW] = {
"brcm/bcm43xx",
NULL
};
int wl_ucode_init_buf(struct wl_info *wl, void **pbuf, u32 idx)
{
int i, entry;
const u8 *pdata;
struct wl_fw_hdr *hdr;
for (i = 0; i < wl->fw.fw_cnt; i++) {
hdr = (struct wl_fw_hdr *)wl->fw.fw_hdr[i]->data;
for (entry = 0; entry < wl->fw.hdr_num_entries[i];
entry++, hdr++) {
if (hdr->idx == idx) {
pdata = wl->fw.fw_bin[i]->data + hdr->offset;
*pbuf = kmalloc(hdr->len, GFP_ATOMIC);
if (*pbuf == NULL) {
printf("fail to alloc %d bytes\n",
hdr->len);
}
bcopy(pdata, *pbuf, hdr->len);
return 0;
}
}
}
printf("ERROR: ucode buf tag:%d can not be found!\n", idx);
*pbuf = NULL;
return -1;
}
int wl_ucode_init_uint(struct wl_info *wl, u32 *data, u32 idx)
{
int i, entry;
const u8 *pdata;
struct wl_fw_hdr *hdr;
for (i = 0; i < wl->fw.fw_cnt; i++) {
hdr = (struct wl_fw_hdr *)wl->fw.fw_hdr[i]->data;
for (entry = 0; entry < wl->fw.hdr_num_entries[i];
entry++, hdr++) {
if (hdr->idx == idx) {
pdata = wl->fw.fw_bin[i]->data + hdr->offset;
ASSERT(hdr->len == 4);
*data = *((u32 *) pdata);
return 0;
}
}
}
printf("ERROR: ucode tag:%d can not be found!\n", idx);
return -1;
}
static int wl_request_fw(struct wl_info *wl, struct pci_dev *pdev)
{
int status;
struct device *device = &pdev->dev;
char fw_name[100];
int i;
memset((void *)&wl->fw, 0, sizeof(struct wl_firmware));
for (i = 0; i < WL_MAX_FW; i++) {
if (wl_firmwares[i] == NULL)
break;
sprintf(fw_name, "%s-%d.fw", wl_firmwares[i],
UCODE_LOADER_API_VER);
WL_NONE("request fw %s\n", fw_name);
status = request_firmware(&wl->fw.fw_bin[i], fw_name, device);
if (status) {
printf("%s: fail to load firmware %s\n",
KBUILD_MODNAME, fw_name);
wl_release_fw(wl);
return status;
}
WL_NONE("request fw %s\n", fw_name);
sprintf(fw_name, "%s_hdr-%d.fw", wl_firmwares[i],
UCODE_LOADER_API_VER);
status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device);
if (status) {
printf("%s: fail to load firmware %s\n",
KBUILD_MODNAME, fw_name);
wl_release_fw(wl);
return status;
}
wl->fw.hdr_num_entries[i] =
wl->fw.fw_hdr[i]->size / (sizeof(struct wl_fw_hdr));
WL_NONE("request fw %s find: %d entries\n",
fw_name, wl->fw.hdr_num_entries[i]);
}
wl->fw.fw_cnt = i;
return wl_ucode_data_init(wl);
}
void wl_ucode_free_buf(void *p)
{
kfree(p);
}
static void wl_release_fw(struct wl_info *wl)
{
int i;
for (i = 0; i < WL_MAX_FW; i++) {
release_firmware(wl->fw.fw_bin[i]);
release_firmware(wl->fw.fw_hdr[i]);
}
}
/*
* checks validity of all firmware images loaded from user space
*/
int wl_check_firmwares(struct wl_info *wl)
{
int i;
int entry;
int rc = 0;
const struct firmware *fw;
const struct firmware *fw_hdr;
struct wl_fw_hdr *ucode_hdr;
for (i = 0; i < WL_MAX_FW && rc == 0; i++) {
fw = wl->fw.fw_bin[i];
fw_hdr = wl->fw.fw_hdr[i];
if (fw == NULL && fw_hdr == NULL) {
break;
} else if (fw == NULL || fw_hdr == NULL) {
WL_ERROR("%s: invalid bin/hdr fw\n", __func__);
rc = -EBADF;
} else if (fw_hdr->size % sizeof(struct wl_fw_hdr)) {
WL_ERROR("%s: non integral fw hdr file size %d/%zu\n",
__func__, fw_hdr->size,
sizeof(struct wl_fw_hdr));
rc = -EBADF;
} else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) {
WL_ERROR("%s: out of bounds fw file size %d\n",
__func__, fw->size);
rc = -EBADF;
} else {
/* check if ucode section overruns firmware image */
ucode_hdr = (struct wl_fw_hdr *)fw_hdr->data;
for (entry = 0; entry < wl->fw.hdr_num_entries[i] && rc;
entry++, ucode_hdr++) {
if (ucode_hdr->offset + ucode_hdr->len >
fw->size) {
WL_ERROR("%s: conflicting bin/hdr\n",
__func__);
rc = -EBADF;
}
}
}
}
if (rc == 0 && wl->fw.fw_cnt != i) {
WL_ERROR("%s: invalid fw_cnt=%d\n", __func__, wl->fw.fw_cnt);
rc = -EBADF;
}
return rc;
}