diff options
author | Greg Kroah-Hartman <gregkh@suse.de> | 2010-10-28 09:44:56 -0700 |
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committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-10-28 09:44:56 -0700 |
commit | e4c5bf8e3dca827a1b3a6fac494eae8c74b7e1e7 (patch) | |
tree | ea51b391f7d74ca695dcb9f5e46eb02688a92ed9 /drivers/staging/brcm80211/sys/wl_mac80211.c | |
parent | 81280572ca6f54009edfa4deee563e8678784218 (diff) | |
parent | a4ac0d847af9dd34d5953a5e264400326144b6b2 (diff) | |
download | op-kernel-dev-e4c5bf8e3dca827a1b3a6fac494eae8c74b7e1e7.zip op-kernel-dev-e4c5bf8e3dca827a1b3a6fac494eae8c74b7e1e7.tar.gz |
Merge 'staging-next' to Linus's tree
This merges the staging-next tree to Linus's tree and resolves
some conflicts that were present due to changes in other trees that were
affected by files here.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/brcm80211/sys/wl_mac80211.c')
-rw-r--r-- | drivers/staging/brcm80211/sys/wl_mac80211.c | 2382 |
1 files changed, 2382 insertions, 0 deletions
diff --git a/drivers/staging/brcm80211/sys/wl_mac80211.c b/drivers/staging/brcm80211/sys/wl_mac80211.c new file mode 100644 index 0000000..ad635ee --- /dev/null +++ b/drivers/staging/brcm80211/sys/wl_mac80211.c @@ -0,0 +1,2382 @@ +/* + * 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 <linuxver.h> +#include <osl.h> +#define WLC_MAXBSSCFG 1 /* single BSS configs */ + +#include <wlc_cfg.h> +#include <net/mac80211.h> +#include <epivers.h> +#ifndef WLC_HIGH_ONLY +#include <phy_version.h> +#endif +#include <bcmutils.h> +#include <pcicfg.h> +#include <wlioctl.h> +#include <wlc_key.h> +#include <wlc_channel.h> +#include <wlc_pub.h> +#include <wlc_scb.h> +#include <wl_dbg.h> +#ifdef BCMSDIO +#include <bcmsdh.h> +#endif +#include <wl_export.h> +#ifdef WLC_HIGH_ONLY +#include "dbus.h" +#include "bcm_rpc_tp.h" +#include "bcm_rpc.h" +#include "bcm_xdr.h" +#include "wlc_rpc.h" +#endif + +#include <wl_mac80211.h> +#include <linux/firmware.h> +#ifndef WLC_HIGH_ONLY +#include <wl_ucode.h> +#include <d11ucode_ext.h> +#endif + +#ifdef BCMSDIO +extern struct device *sdiommc_dev; +#endif + +extern void wlc_wme_setparams(wlc_info_t *wlc, u16 aci, void *arg, + bool suspend); +bool wlc_sendpkt_mac80211(wlc_info_t *wlc, void *sdu, struct ieee80211_hw *hw); +void wlc_mac_bcn_promisc_change(wlc_info_t *wlc, bool promisc); +void wlc_set_addrmatch(wlc_info_t *wlc, int match_reg_offset, + const struct ether_addr *addr); + +static void wl_timer(unsigned long data); +static void _wl_timer(wl_timer_t *t); + +#ifdef WLC_HIGH_ONLY +#define RPCQ_LOCK(_wl, _flags) spin_lock_irqsave(&(_wl)->rpcq_lock, (_flags)) +#define RPCQ_UNLOCK(_wl, _flags) spin_unlock_irqrestore(&(_wl)->rpcq_lock, (_flags)) +#define TXQ_LOCK(_wl, _flags) spin_lock_irqsave(&(_wl)->txq_lock, (_flags)) +#define TXQ_UNLOCK(_wl, _flags) spin_unlock_irqrestore(&(_wl)->txq_lock, (_flags)) +static void wl_rpc_down(void *wlh); +static void wl_rpcq_free(wl_info_t *wl); +static void wl_rpcq_dispatch(struct wl_task *task); +static void wl_rpc_dispatch_schedule(void *ctx, struct rpc_buf *buf); +static void wl_start_txqwork(struct wl_task *task); +static void wl_txq_free(wl_info_t *wl); +static void wl_timer_task(wl_task_t *task); +static int wl_schedule_task(wl_info_t *wl, void (*fn) (struct wl_task *), + void *context); +#endif /* WLC_HIGH_ONLY */ + +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]; +}; + +#ifndef WLC_HIGH_ONLY +#define WL_DEV_IF(dev) ((wl_if_t *)netdev_priv(dev)) +#define WL_INFO(dev) ((wl_info_t *)(WL_DEV_IF(dev)->wl)) /* points to wl */ +static int wl_request_fw(wl_info_t *wl, struct pci_dev *pdev); +static void wl_release_fw(wl_info_t *wl); +#endif + +/* local prototypes */ +static int wl_start(struct sk_buff *skb, wl_info_t *wl); +static int wl_start_int(wl_info_t *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"); + +#ifndef BCMSDIO +/* 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); +#endif /* !BCMSDIO */ + +#ifdef BCMSDIO +static uint sd_drivestrength = 6; +module_param(sd_drivestrength, uint, 0); +#endif + +#ifdef BCMDBG +static int msglevel = 0xdeadbeef; +module_param(msglevel, int, 0); +#ifndef WLC_HIGH_ONLY +static int phymsglevel = 0xdeadbeef; +module_param(phymsglevel, int, 0); +#endif /* WLC_HIGH_ONLY */ +#endif /* BCMDBG */ + +static int oneonly; +module_param(oneonly, int, 0); + +static int piomode; +module_param(piomode, int, 0); + +static int instance_base; /* Starting instance number */ +module_param(instance_base, int, 0); + +#if defined(BCMDBG) +static char *macaddr; +module_param(macaddr, charp, S_IRUGO); +#endif + +static int nompc = 1; +module_param(nompc, int, 0); + +static char name[IFNAMSIZ] = "eth%d"; +module_param_string(name, name, IFNAMSIZ, 0); + +#ifndef SRCBASE +#define SRCBASE "." +#endif + +#define WL_MAGIC 0xdeadbeef + +#define HW_TO_WL(hw) (hw->priv) +#define WL_TO_HW(wl) (wl->pub->ieee_hw) +#ifdef WLC_HIGH_ONLY +static int wl_ops_tx_nl(struct ieee80211_hw *hw, struct sk_buff *skb); +#else +static int wl_ops_tx(struct ieee80211_hw *hw, struct sk_buff *skb); +#endif +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); + +#ifdef WLC_HIGH_ONLY +static int wl_ops_tx_nl(struct ieee80211_hw *hw, struct sk_buff *skb) +{ + int status; + wl_info_t *wl = hw->priv; + if (!wl->pub->up) { + WL_ERROR(("ops->tx called while down\n")); + status = -ENETDOWN; + goto done; + } + status = wl_start(skb, wl); + done: + return status; +} +#else +static int wl_ops_tx(struct ieee80211_hw *hw, struct sk_buff *skb) +{ + int status; + wl_info_t *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; +} +#endif /* WLC_HIGH_ONLY */ + +static int wl_ops_start(struct ieee80211_hw *hw) +{ + wl_info_t *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) +{ + wl_info_t *wl = hw->priv; + ASSERT(wl); + WL_LOCK(wl); + wl_down(wl); + ieee80211_stop_queues(hw); + WL_UNLOCK(wl); + + return; +} + +static int +wl_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) +{ + wl_info_t *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) +{ + return; +} + +static int +ieee_set_channel(struct ieee80211_hw *hw, struct ieee80211_channel *chan, + enum nl80211_channel_type type) +{ + wl_info_t *wl = HW_TO_WL(hw); + int err = 0; + + switch (type) { + case NL80211_CHAN_HT20: + case NL80211_CHAN_NO_HT: + WL_LOCK(wl); + err = wlc_set(wl->wlc, WLC_SET_CHANNEL, chan->hw_value); + WL_UNLOCK(wl); + 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; + wl_info_t *wl = HW_TO_WL(hw); + int err = 0; + int new_int; + + 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: + return err; +} + +static void +wl_ops_bss_info_changed(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *info, u32 changed) +{ + wl_info_t *wl = HW_TO_WL(hw); + int val; + +#ifdef WLC_HIGH_ONLY + WL_LOCK(wl); +#endif + + 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) */ + } +#ifdef WLC_HIGH_ONLY + WL_UNLOCK(wl); +#endif + return; +} + +static void +wl_ops_configure_filter(struct ieee80211_hw *hw, + unsigned int changed_flags, + unsigned int *total_flags, u64 multicast) +{ +#ifndef WLC_HIGH_ONLY + wl_info_t *wl = hw->priv; +#endif + + 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")); +#ifndef WLC_HIGH_ONLY + 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); +#endif + } + 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) +{ + WL_NONE(("Scan Start\n")); + return; +} + +static void wl_ops_sw_scan_complete(struct ieee80211_hw *hw) +{ + WL_NONE(("Scan Complete\n")); + 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: Uknown 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) +{ + wl_info_t *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; + wl_info_t *wl = hw->priv; + + /* Init the scb */ + scb = (struct scb *)sta->drv_priv; + bzero(scb, 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; +#ifdef WLC_HIGH_ONLY + wl->pub->global_ampdu->max_pdu = AMPDU_NUM_MPDU; +#else + wl->pub->global_ampdu->max_pdu = 16; +#endif + pktq_init(&scb->scb_ampdu.txq, AMPDU_MAX_SCB_TID, + AMPDU_MAX_SCB_TID * PKTQ_LEN_DEFAULT); + + sta->ht_cap.ht_supported = true; +#ifdef WLC_HIGH_ONLY + sta->ht_cap.ampdu_factor = AMPDU_RX_FACTOR_16K; +#else + sta->ht_cap.ampdu_factor = AMPDU_RX_FACTOR_64K; +#endif + 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 + wl_info_t *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 = { +#ifdef WLC_HIGH_ONLY + .tx = wl_ops_tx_nl, +#else + .tx = wl_ops_tx, +#endif + .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(wl_info_t *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 wl_info_t *wl_attach(u16 vendor, u16 device, unsigned long regs, + uint bustype, void *btparam, uint irq) +{ + wl_info_t *wl; + osl_t *osh; + int unit, err; + + unsigned long base_addr; + struct ieee80211_hw *hw; + u8 perm[ETH_ALEN]; + + unit = wl_found + instance_base; + err = 0; + + if (unit < 0) { + WL_ERROR(("wl%d: unit number overflow, exiting\n", unit)); + return NULL; + } + + if (oneonly && (unit != instance_base)) { + WL_ERROR(("wl%d: wl_attach: oneonly is set, exiting\n", unit)); + return NULL; + } + + /* Requires pkttag feature */ + osh = osl_attach(btparam, bustype, true); + ASSERT(osh); + +#ifdef WLC_HIGH_ONLY + hw = ieee80211_alloc_hw(sizeof(wl_info_t), &wl_ops); + if (!hw) { + WL_ERROR(("%s: ieee80211_alloc_hw failed\n", __func__)); + ASSERT(0); + } + + bzero(hw->priv, sizeof(*wl)); + wl = hw->priv; +#else + /* allocate private info */ + hw = pci_get_drvdata(btparam); /* btparam == pdev */ + wl = hw->priv; +#endif + ASSERT(wl); + + wl->magic = WL_MAGIC; + wl->osh = osh; + atomic_set(&wl->callbacks, 0); + + /* setup the bottom half handler */ + tasklet_init(&wl->tasklet, wl_dpc, (unsigned long) wl); + +#ifdef WLC_HIGH_ONLY + wl->rpc_th = bcm_rpc_tp_attach(osh, NULL); + if (wl->rpc_th == NULL) { + WL_ERROR(("wl%d: %s: bcm_rpc_tp_attach failed!\n", unit, + __func__)); + goto fail; + } + + wl->rpc = bcm_rpc_attach(NULL, osh, wl->rpc_th); + if (wl->rpc == NULL) { + WL_ERROR(("wl%d: %s: bcm_rpc_attach failed!\n", unit, + __func__)); + goto fail; + } + + /* init tx work queue for wl_start/send pkt; no need to destroy workitem */ + INIT_WORK(&wl->txq_task.work, (work_func_t) wl_start_txqwork); + wl->txq_task.context = wl; +#endif /* WLC_HIGH_ONLY */ + +#ifdef BCMSDIO + SET_IEEE80211_DEV(hw, sdiommc_dev); +#endif + + base_addr = regs; + + if (bustype == PCI_BUS) { + /* piomode can be overwritten by command argument */ + wl->piomode = piomode; + WL_TRACE(("PCI/%s\n", wl->piomode ? "PIO" : "DMA")); + } else if (bustype == RPC_BUS) { + /* Do nothing */ + } else { + bustype = PCI_BUS; + WL_TRACE(("force to PCI\n")); + } + wl->bcm_bustype = bustype; + +#ifdef WLC_HIGH_ONLY + if (wl->bcm_bustype == RPC_BUS) { + wl->regsva = (void *)0; + btparam = wl->rpc; + } else +#endif + wl->regsva = ioremap_nocache(base_addr, PCI_BAR0_WINSZ); + if (wl->regsva == NULL) { + WL_ERROR(("wl%d: ioremap() failed\n", unit)); + goto fail; + } +#ifdef WLC_HIGH_ONLY + spin_lock_init(&wl->rpcq_lock); + spin_lock_init(&wl->txq_lock); + + init_MUTEX(&wl->sem); +#else + spin_lock_init(&wl->lock); + spin_lock_init(&wl->isr_lock); +#endif + +#ifndef WLC_HIGH_ONLY + /* 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; + } +#endif + + /* common load-time initialization */ + wl->wlc = wlc_attach((void *)wl, vendor, device, unit, wl->piomode, osh, + wl->regsva, wl->bcm_bustype, btparam, &err); +#ifndef WLC_HIGH_ONLY + wl_release_fw(wl); +#endif + if (!wl->wlc) { + printf("%s: %s wlc_attach() failed with code %d\n", + KBUILD_MODNAME, EPI_VERSION_STR, 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); + +#ifdef WLC_HIGH_ONLY + REGOPSSET(osh, (osl_rreg_fn_t) wlc_reg_read, + (osl_wreg_fn_t) wlc_reg_write, wl->wlc); + wl->rpc_dispatch_ctx.rpc = wl->rpc; + wl->rpc_dispatch_ctx.wlc = wl->wlc; + bcm_rpc_rxcb_init(wl->rpc, wl, wl_rpc_dispatch_schedule, wl, + wl_rpc_down, NULL, NULL); +#endif /* WLC_HIGH_ONLY */ + + if (nompc) { + if (wlc_iovar_setint(wl->wlc, "mpc", 0)) { + WL_ERROR(("wl%d: Error setting MPC variable to 0\n", + unit)); + } + } +#ifdef BCMSDIO + /* Set SDIO drive strength */ + wlc_iovar_setint(wl->wlc, "sd_drivestrength", sd_drivestrength); +#endif + +#ifdef WLC_LOW + /* 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; +#endif /* WLC_LOW */ + + /* 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, ETHER_ADDR_LEN); + 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)); + } +#ifndef WLC_HIGH_ONLY + WL_ERROR(("wl%d: Broadcom BCM43xx 802.11 MAC80211 Driver " + EPI_VERSION_STR " (" PHY_VERSION_STR ")", unit)); +#else + WL_ERROR(("wl%d: Broadcom BCM43xx 802.11 MAC80211 Driver " + EPI_VERSION_STR, unit)); +#endif + +#ifdef BCMDBG + printf(" (Compiled in " SRCBASE " at " __TIME__ " on " __DATE__ ")"); +#endif /* BCMDBG */ + printf("\n"); + + wl_found++; + return wl; + + fail: + wl_free(wl); +fail1: + return NULL; +} + +#ifdef WLC_HIGH_ONLY +static void *wl_dbus_probe_cb(void *arg, const char *desc, u32 bustype, + u32 hdrlen) +{ + wl_info_t *wl; + WL_ERROR(("%s:\n", __func__)); + + wl = wl_attach(BCM_DNGL_VID, BCM_DNGL_BDC_PID, (unsigned long) NULL, RPC_BUS, + NULL, 0); + if (!wl) { + WL_ERROR(("%s: wl_attach failed\n", __func__)); + } + + /* This is later passed to wl_dbus_disconnect_cb */ + return wl; +} + +static void wl_dbus_disconnect_cb(void *arg) +{ + wl_info_t *wl = arg; + + WL_ERROR(("%s:\n", __func__)); + + if (wl) { +#ifdef WLC_HIGH_ONLY + if (wl->pub->ieee_hw) { + ieee80211_unregister_hw(wl->pub->ieee_hw); + WL_ERROR(("%s: Back from down\n", __func__)); + } + wlc_device_removed(wl->wlc); + wlc_bmac_dngl_reboot(wl->rpc); + bcm_rpc_down(wl->rpc); +#endif + WL_LOCK(wl); + wl_down(wl); + WL_UNLOCK(wl); +#ifdef WLC_HIGH_ONLY + if (wl->pub->ieee_hw) { + ieee80211_free_hw(wl->pub->ieee_hw); + WL_ERROR(("%s: Back from ieee80211_free_hw\n", + __func__)); + wl->pub->ieee_hw = NULL; + } +#endif + wl_free(wl); + } +} +#endif /* WLC_HIGH_ONLY */ + + +#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, +#ifdef WLC_HIGH_ONLY + .ht_supported = true, + .ampdu_factor = AMPDU_RX_FACTOR_16K, +#else + .ht_supported = true, + .ampdu_factor = AMPDU_RX_FACTOR_64K, +#endif + .ampdu_density = AMPDU_DEF_MPDU_DENSITY, + .mcs = { + /* placeholders for now */ +#ifdef WLC_HIGH_ONLY + /* + * rx_mask[0] = 0xff by default + * rx_mask[1] = 0xff if number of rx chain >=2 + * rx_mask[2] = 0xff if number of rx chain >=3 + * rx_mask[4] = 1 if 40Mhz is supported + */ + .rx_mask = {0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + .rx_highest = 72, /* max rate of single stream */ +#else + .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0}, + .rx_highest = 500, +#endif + .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) +{ + wl_info_t *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])); + +#ifndef WLC_HIGH_ONLY + 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; + } +#else + if (phy_list[0] == 's') { +#endif + 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++; +#ifndef WLC_HIGH_ONLY + if (phy_list[0] == 'n' || phy_list[0] == 'c') { +#else + if (phy_list[0] == 's') { +#endif + 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); +} + +#ifndef BCMSDIO +/** + * 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; + wl_info_t *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(wl_info_t), &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); + + bzero(hw->priv, 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; +} + +#ifdef LINUXSTA_PS +static int wl_suspend(struct pci_dev *pdev, pm_message_t state) +{ + wl_info_t *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; + } + + WL_LOCK(wl); + wl_down(wl); + wl->pub->hw_up = false; + WL_UNLOCK(wl); + pci_save_state(pdev, wl->pci_psstate); + pci_disable_device(pdev); + return pci_set_power_state(pdev, PCI_D3hot); +} + +static int wl_resume(struct pci_dev *pdev) +{ + wl_info_t *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, wl->pci_psstate); + + 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); + + WL_LOCK(wl); + err = wl_up(wl); + WL_UNLOCK(wl); + + return err; +} +#endif /* LINUXSTA_PS */ + +static void wl_remove(struct pci_dev *pdev) +{ + wl_info_t *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, +#ifdef LINUXSTA_PS + .suspend = wl_suspend, + .resume = wl_resume, +#endif /* LINUXSTA_PS */ + .remove = __devexit_p(wl_remove), + .id_table = wl_id_table, +}; +#endif /* !BCMSDIO */ + +/** + * 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); + } +#ifndef WLC_HIGH_ONLY + { + 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 /* WLC_HIGH_ONLY */ +#endif /* BCMDBG */ + +#ifndef BCMSDIO + error = pci_register_driver(&wl_pci_driver); + if (!error) + return 0; + +#endif /* !BCMSDIO */ + +#ifdef WLC_HIGH_ONLY + /* BMAC_NOTE: define hardcode number, why NODEVICE is ok ? */ + error = + dbus_register(BCM_DNGL_VID, 0, wl_dbus_probe_cb, + wl_dbus_disconnect_cb, NULL, NULL, NULL); + if (error == DBUS_ERR_NODEVICE) { + error = DBUS_OK; + } +#endif /* WLC_HIGH_ONLY */ + + 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) +{ +#ifndef BCMSDIO + pci_unregister_driver(&wl_pci_driver); +#endif /* !BCMSDIO */ + +#ifdef WLC_HIGH_ONLY + dbus_deregister(); +#endif /* WLC_HIGH_ONLY */ +} + +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(wl_info_t *wl) +{ + wl_timer_t *t, *next; + osl_t *osh; + + ASSERT(wl); +#ifndef WLC_HIGH_ONLY + /* free ucode data */ + if (wl->fw.fw_cnt) + wl_ucode_data_free(); + if (wl->irq) + free_irq(wl->irq, wl); +#endif + + /* 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 && BUSTYPE(wl->bcm_bustype) != SDIO_BUS && + BUSTYPE(wl->bcm_bustype) != JTAG_BUS) { + iounmap((void *)wl->regsva); + } + wl->regsva = NULL; + +#ifdef WLC_HIGH_ONLY + wl_rpcq_free(wl); + + wl_txq_free(wl); + + if (wl->rpc) { + bcm_rpc_detach(wl->rpc); + wl->rpc = NULL; + } + + if (wl->rpc_th) { + bcm_rpc_tp_detach(wl->rpc_th); + wl->rpc_th = NULL; + } +#endif /* WLC_HIGH_ONLY */ + + osl_detach(osh); +} + +#ifdef WLC_LOW +/* transmit a packet */ +static int BCMFASTPATH wl_start(struct sk_buff *skb, wl_info_t *wl) +{ + if (!wl) + return -ENETDOWN; + + return wl_start_int(wl, WL_TO_HW(wl), skb); +} +#endif /* WLC_LOW */ + +static int BCMFASTPATH +wl_start_int(wl_info_t *wl, struct ieee80211_hw *hw, struct sk_buff *skb) +{ +#ifdef WLC_HIGH_ONLY + WL_LOCK(wl); +#endif + wlc_sendpkt_mac80211(wl->wlc, skb, hw); +#ifdef WLC_HIGH_ONLY + WL_UNLOCK(wl); +#endif + return NETDEV_TX_OK; +} + +void wl_txflowcontrol(wl_info_t *wl, struct wl_if *wlif, bool state, int prio) +{ + WL_ERROR(("Shouldn't be here %s\n", __func__)); +} + +#if defined(WLC_HIGH_ONLY) +/* Schedule a completion handler to run at safe time */ +static int +wl_schedule_task(wl_info_t *wl, void (*fn) (struct wl_task *task), + void *context) +{ + wl_task_t *task; + + WL_TRACE(("wl%d: wl_schedule_task\n", wl->pub->unit)); + + task = kmalloc(sizeof(wl_task_t), GFP_ATOMIC); + if (!task) { + WL_ERROR(("wl%d: wl_schedule_task: out of memory\n", wl->pub->unit)); + return -ENOMEM; + } + + INIT_WORK(&task->work, (work_func_t) fn); + task->context = context; + + if (!schedule_work(&task->work)) { + WL_ERROR(("wl%d: schedule_work() failed\n", wl->pub->unit)); + kfree(task); + return -ENOMEM; + } + + atomic_inc(&wl->callbacks); + + return 0; +} +#endif /* defined(WLC_HIGH_ONLY) */ + +void wl_init(wl_info_t *wl) +{ + WL_TRACE(("wl%d: wl_init\n", wl->pub->unit)); + + wl_reset(wl); + + wlc_init(wl->wlc); +} + +uint wl_reset(wl_info_t *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(wl_info_t *wl) +{ +#if defined(WLC_LOW) + unsigned long flags; + + INT_LOCK(wl, flags); + wlc_intrson(wl->wlc); + INT_UNLOCK(wl, flags); +#endif /* WLC_LOW */ +} + +bool wl_alloc_dma_resources(wl_info_t *wl, uint addrwidth) +{ + return true; +} + +u32 BCMFASTPATH wl_intrsoff(wl_info_t *wl) +{ +#if defined(WLC_LOW) + unsigned long flags; + u32 status; + + INT_LOCK(wl, flags); + status = wlc_intrsoff(wl->wlc); + INT_UNLOCK(wl, flags); + return status; +#else + return 0; +#endif /* WLC_LOW */ +} + +void wl_intrsrestore(wl_info_t *wl, u32 macintmask) +{ +#if defined(WLC_LOW) + unsigned long flags; + + INT_LOCK(wl, flags); + wlc_intrsrestore(wl->wlc, macintmask); + INT_UNLOCK(wl, flags); +#endif /* WLC_LOW */ +} + +int wl_up(wl_info_t *wl) +{ + int error = 0; + + if (wl->pub->up) + return 0; + + error = wlc_up(wl->wlc); + + return error; +} + +void wl_down(wl_info_t *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); + +#ifndef WLC_HIGH_ONLY + /* 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); +#endif /* WLC_HIGH_ONLY */ + + WL_LOCK(wl); +} + +irqreturn_t BCMFASTPATH wl_isr(int irq, void *dev_id) +{ +#if defined(WLC_LOW) + wl_info_t *wl; + bool ours, wantdpc; + unsigned long flags; + + wl = (wl_info_t *) 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); +#else + return IRQ_RETVAL(0); +#endif /* WLC_LOW */ +} + +static void BCMFASTPATH wl_dpc(unsigned long data) +{ +#ifdef WLC_LOW + wl_info_t *wl; + + wl = (wl_info_t *) 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); +#endif /* WLC_LOW */ +} + +static void wl_link_up(wl_info_t *wl, char *ifname) +{ + WL_ERROR(("wl%d: link up (%s)\n", wl->pub->unit, ifname)); +} + +static void wl_link_down(wl_info_t *wl, char *ifname) +{ + WL_ERROR(("wl%d: link down (%s)\n", wl->pub->unit, ifname)); +} + +void wl_event(wl_info_t *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) +{ +#ifndef WLC_HIGH_ONLY + _wl_timer((wl_timer_t *) data); +#else + wl_timer_t *t = (wl_timer_t *) data; + wl_schedule_task(t->wl, wl_timer_task, t); +#endif /* WLC_HIGH_ONLY */ +} + +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(wl_info_t *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; + } + + bzero(t, 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(wl_info_t *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(wl_info_t *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(wl_info_t *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) +{ + wl_info_t *wl = (wl_info_t *) 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; +}; + +#ifdef WLC_HIGH_ONLY +static void wl_rpc_down(void *wlh) +{ + wl_info_t *wl = (wl_info_t *) (wlh); + + wlc_device_removed(wl->wlc); + + wl_rpcq_free(wl); +} + +static int BCMFASTPATH wl_start(struct sk_buff *skb, wl_info_t *wl) +{ + + unsigned long flags; + + skb->prev = NULL; + + /* Lock the queue as tasklet could be running at this time */ + TXQ_LOCK(wl, flags); + if (wl->txq_head == NULL) + wl->txq_head = skb; + else { + wl->txq_tail->prev = skb; + } + wl->txq_tail = skb; + + if (wl->txq_dispatched == false) { + wl->txq_dispatched = true; + + if (schedule_work(&wl->txq_task.work)) { + atomic_inc(&wl->callbacks); + } else { + WL_ERROR(("wl%d: wl_start/schedule_work failed\n", + wl->pub->unit)); + } + } + + TXQ_UNLOCK(wl, flags); + + return 0; + +} + +static void wl_start_txqwork(struct wl_task *task) +{ + wl_info_t *wl = (wl_info_t *) task->context; + struct sk_buff *skb; + unsigned long flags; + uint count = 0; + + WL_TRACE(("wl%d: wl_start_txqwork\n", wl->pub->unit)); + + /* First remove an entry then go for execution */ + TXQ_LOCK(wl, flags); + while (wl->txq_head) { + skb = wl->txq_head; + wl->txq_head = skb->prev; + skb->prev = NULL; + if (wl->txq_head == NULL) + wl->txq_tail = NULL; + TXQ_UNLOCK(wl, flags); + + /* it has WL_LOCK/WL_UNLOCK inside */ + wl_start_int(wl, WL_TO_HW(wl), skb); + + /* bounded our execution, reshedule ourself next */ + if (++count >= 10) + break; + + TXQ_LOCK(wl, flags); + } + + if (count >= 10) { + if (!schedule_work(&wl->txq_task.work)) { + WL_ERROR(("wl%d: wl_start/schedule_work failed\n", + wl->pub->unit)); + atomic_dec(&wl->callbacks); + } + } else { + wl->txq_dispatched = false; + TXQ_UNLOCK(wl, flags); + atomic_dec(&wl->callbacks); + } + + return; +} + +static void wl_txq_free(wl_info_t *wl) +{ + struct sk_buff *skb; + + if (wl->txq_head == NULL) { + ASSERT(wl->txq_tail == NULL); + return; + } + + while (wl->txq_head) { + skb = wl->txq_head; + wl->txq_head = skb->prev; + PKTFREE(wl->osh, skb, true); + } + + wl->txq_tail = NULL; +} + +static void wl_rpcq_free(wl_info_t *wl) +{ + rpc_buf_t *buf; + + if (wl->rpcq_head == NULL) { + ASSERT(wl->rpcq_tail == NULL); + return; + } + + while (wl->rpcq_head) { + buf = wl->rpcq_head; + wl->rpcq_head = bcm_rpc_buf_next_get(wl->rpc_th, buf); + bcm_rpc_buf_free(wl->rpc_dispatch_ctx.rpc, buf); + } + + wl->rpcq_tail = NULL; +} + +static void wl_rpcq_dispatch(struct wl_task *task) +{ + wl_info_t *wl = (wl_info_t *) task->context; + rpc_buf_t *buf; + unsigned long flags; + + /* First remove an entry then go for execution */ + RPCQ_LOCK(wl, flags); + while (wl->rpcq_head) { + buf = wl->rpcq_head; + wl->rpcq_head = bcm_rpc_buf_next_get(wl->rpc_th, buf); + + if (wl->rpcq_head == NULL) + wl->rpcq_tail = NULL; + RPCQ_UNLOCK(wl, flags); + + WL_LOCK(wl); + wlc_rpc_high_dispatch(&wl->rpc_dispatch_ctx, buf); + WL_UNLOCK(wl); + + RPCQ_LOCK(wl, flags); + } + + wl->rpcq_dispatched = false; + + RPCQ_UNLOCK(wl, flags); + + kfree(task); + atomic_dec(&wl->callbacks); +} + +static void wl_rpcq_add(wl_info_t *wl, rpc_buf_t *buf) +{ + unsigned long flags; + + bcm_rpc_buf_next_set(wl->rpc_th, buf, NULL); + + /* Lock the queue as tasklet could be running at this time */ + RPCQ_LOCK(wl, flags); + if (wl->rpcq_head == NULL) + wl->rpcq_head = buf; + else + bcm_rpc_buf_next_set(wl->rpc_th, wl->rpcq_tail, buf); + + wl->rpcq_tail = buf; + + if (wl->rpcq_dispatched == false) { + wl->rpcq_dispatched = true; + wl_schedule_task(wl, wl_rpcq_dispatch, wl); + } + + RPCQ_UNLOCK(wl, flags); +} + +#if defined(BCMDBG) +static const struct name_entry rpc_name_tbl[] = RPC_ID_TABLE; +#endif /* BCMDBG */ + +/* dongle-side rpc dispatch routine */ +static void wl_rpc_dispatch_schedule(void *ctx, struct rpc_buf *buf) +{ + bcm_xdr_buf_t b; + wl_info_t *wl = (wl_info_t *) ctx; + wlc_rpc_id_t rpc_id; + int err; + + bcm_xdr_buf_init(&b, bcm_rpc_buf_data(wl->rpc_th, buf), + bcm_rpc_buf_len_get(wl->rpc_th, buf)); + + err = bcm_xdr_unpack_u32(&b, &rpc_id); + ASSERT(!err); + WL_TRACE(("%s: Dispatch id %s\n", __func__, + WLC_RPC_ID_LOOKUP(rpc_name_tbl, rpc_id))); + + /* Handle few emergency ones */ + switch (rpc_id) { + default: + wl_rpcq_add(wl, buf); + break; + } +} + +static void wl_timer_task(wl_task_t *task) +{ + wl_timer_t *t = (wl_timer_t *) task->context; + + _wl_timer(t); + kfree(task); + + /* This dec is for the task_schedule. The timer related + * callback is decremented in _wl_timer + */ + atomic_dec(&t->wl->callbacks); +} +#endif /* WLC_HIGH_ONLY */ + +#ifndef WLC_HIGH_ONLY +char *wl_firmwares[WL_MAX_FW] = { + "brcm/bcm43xx", + NULL +}; + +#ifdef WLC_LOW +int wl_ucode_init_buf(wl_info_t *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(wl_info_t *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; +} +#endif /* WLC_LOW */ + +static int wl_request_fw(wl_info_t *wl, struct pci_dev *pdev) +{ + int status; + struct device *device = &pdev->dev; + char fw_name[100]; + int i; + + bzero((void *)&wl->fw, 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; + wl_ucode_data_init(wl); + return 0; +} + +#ifdef WLC_LOW +void wl_ucode_free_buf(void *p) +{ + kfree(p); +} +#endif /* WLC_LOW */ + +static void wl_release_fw(wl_info_t *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]); + } +} +#endif /* WLC_HIGH_ONLY */ |