--- /dev/null
+/*
+ * Copyright (c) 2010 Broadcom Corporation
+ * Copyright (c) 2013 Hauke Mehrtens <hauke@hauke-m.de>
+ *
+ * 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__
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/etherdevice.h>
+#include <linux/sched.h>
+#include <linux/firmware.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/bcma/bcma.h>
+#include <net/mac80211.h>
+#include <defs.h>
+#include "phy/phy_int.h"
+#include "d11.h"
+#include "channel.h"
+#include "scb.h"
+#include "pub.h"
+#include "ucode_loader.h"
+#include "mac80211_if.h"
+#include "main.h"
+#include "debug.h"
+#include "led.h"
+
+#define N_TX_QUEUES 4 /* #tx queues on mac80211<->driver interface */
+#define BRCMS_FLUSH_TIMEOUT 500 /* msec */
+
+/* Flags we support */
+#define MAC_FILTERS (FIF_PROMISC_IN_BSS | \
+ FIF_ALLMULTI | \
+ FIF_FCSFAIL | \
+ FIF_CONTROL | \
+ FIF_OTHER_BSS | \
+ FIF_BCN_PRBRESP_PROMISC | \
+ FIF_PSPOLL)
+
+#define CHAN2GHZ(channel, freqency, chflags) { \
+ .band = IEEE80211_BAND_2GHZ, \
+ .center_freq = (freqency), \
+ .hw_value = (channel), \
+ .flags = chflags, \
+ .max_antenna_gain = 0, \
+ .max_power = 19, \
+}
+
+#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, \
+}
+
+#define RATE(rate100m, _flags) { \
+ .bitrate = (rate100m), \
+ .flags = (_flags), \
+ .hw_value = (rate100m / 5), \
+}
+
+struct firmware_hdr {
+ __le32 offset;
+ __le32 len;
+ __le32 idx;
+};
+
+static const char * const brcms_firmwares[MAX_FW_IMAGES] = {
+ "brcm/bcm43xx",
+ NULL
+};
+
+static int n_adapters_found;
+
+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");
+/* This needs to be adjusted when brcms_firmwares changes */
+MODULE_FIRMWARE("brcm/bcm43xx-0.fw");
+MODULE_FIRMWARE("brcm/bcm43xx_hdr-0.fw");
+
+/* recognized BCMA Core IDs */
+static struct bcma_device_id brcms_coreid_table[] = {
+ BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 17, BCMA_ANY_CLASS),
+ BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 23, BCMA_ANY_CLASS),
+ BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 24, BCMA_ANY_CLASS),
+ {},
+};
+MODULE_DEVICE_TABLE(bcma, brcms_coreid_table);
+
+#if defined(CONFIG_BRCMDBG)
+/*
+ * Module parameter for setting the debug message level. Available
+ * flags are specified by the BRCM_DL_* macros in
+ * drivers/net/wireless/brcm80211/include/defs.h.
+ */
+module_param_named(debug, brcm_msg_level, uint, S_IRUGO | S_IWUSR);
+#endif
+
+static struct ieee80211_channel brcms_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_NO_IR |
+ IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN2GHZ(13, 2472,
+ IEEE80211_CHAN_NO_IR |
+ IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN2GHZ(14, 2484,
+ IEEE80211_CHAN_NO_IR |
+ IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS |
+ IEEE80211_CHAN_NO_OFDM)
+};
+
+static struct ieee80211_channel brcms_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_IR | IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN5GHZ(56,
+ IEEE80211_CHAN_RADAR |
+ IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN5GHZ(60,
+ IEEE80211_CHAN_RADAR |
+ IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN5GHZ(64,
+ IEEE80211_CHAN_RADAR |
+ IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
+ /* MID */
+ CHAN5GHZ(100,
+ IEEE80211_CHAN_RADAR |
+ IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN5GHZ(104,
+ IEEE80211_CHAN_RADAR |
+ IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN5GHZ(108,
+ IEEE80211_CHAN_RADAR |
+ IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN5GHZ(112,
+ IEEE80211_CHAN_RADAR |
+ IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN5GHZ(116,
+ IEEE80211_CHAN_RADAR |
+ IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN5GHZ(120,
+ IEEE80211_CHAN_RADAR |
+ IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN5GHZ(124,
+ IEEE80211_CHAN_RADAR |
+ IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN5GHZ(128,
+ IEEE80211_CHAN_RADAR |
+ IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN5GHZ(132,
+ IEEE80211_CHAN_RADAR |
+ IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN5GHZ(136,
+ IEEE80211_CHAN_RADAR |
+ IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN5GHZ(140,
+ IEEE80211_CHAN_RADAR |
+ IEEE80211_CHAN_NO_IR | 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)
+};
+
+/*
+ * The rate table is used for both 2.4G and 5G rates. The
+ * latter being a subset as it does not support CCK rates.
+ */
+static struct ieee80211_rate 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 const struct ieee80211_supported_band brcms_band_2GHz_nphy_template = {
+ .band = IEEE80211_BAND_2GHZ,
+ .channels = brcms_2ghz_chantable,
+ .n_channels = ARRAY_SIZE(brcms_2ghz_chantable),
+ .bitrates = legacy_ratetable,
+ .n_bitrates = ARRAY_SIZE(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,
+ .ht_supported = true,
+ .ampdu_factor = IEEE80211_HT_MAX_AMPDU_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 = cpu_to_le16(500),
+ .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
+ }
+};
+
+static const struct ieee80211_supported_band brcms_band_5GHz_nphy_template = {
+ .band = IEEE80211_BAND_5GHZ,
+ .channels = brcms_5ghz_nphy_chantable,
+ .n_channels = ARRAY_SIZE(brcms_5ghz_nphy_chantable),
+ .bitrates = legacy_ratetable + BRCMS_LEGACY_5G_RATE_OFFSET,
+ .n_bitrates = ARRAY_SIZE(legacy_ratetable) -
+ BRCMS_LEGACY_5G_RATE_OFFSET,
+ .ht_cap = {
+ .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 |
+ IEEE80211_HT_CAP_SGI_40,
+ .ht_supported = true,
+ .ampdu_factor = IEEE80211_HT_MAX_AMPDU_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 = cpu_to_le16(500),
+ .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
+ }
+};
+
+/* flags the given rate in rateset as requested */
+static void brcms_set_basic_rate(struct brcm_rateset *rs, u16 rate, bool is_br)
+{
+ u32 i;
+
+ for (i = 0; i < rs->count; i++) {
+ if (rate != (rs->rates[i] & 0x7f))
+ continue;
+
+ if (is_br)
+ rs->rates[i] |= BRCMS_RATE_FLAG;
+ else
+ rs->rates[i] &= BRCMS_RATE_MASK;
+ return;
+ }
+}
+
+/**
+ * This function frees the WL per-device resources.
+ *
+ * This function frees resources owned by the WL device pointed to
+ * by the wl parameter.
+ *
+ * precondition: can both be called locked and unlocked
+ *
+ */
+static void brcms_free(struct brcms_info *wl)
+{
+ struct brcms_timer *t, *next;
+
+ /* free ucode data */
+ if (wl->fw.fw_cnt)
+ brcms_ucode_data_free(&wl->ucode);
+ if (wl->irq)
+ free_irq(wl->irq, wl);
+
+ /* kill dpc */
+ tasklet_kill(&wl->tasklet);
+
+ if (wl->pub) {
+ brcms_debugfs_detach(wl->pub);
+ brcms_c_module_unregister(wl->pub, "linux", wl);
+ }
+
+ /* free common resources */
+ if (wl->wlc) {
+ brcms_c_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 DEBUG
+ kfree(t->name);
+#endif
+ kfree(t);
+ }
+}
+
+/*
+* called from both kernel as from this kernel module (error flow on attach)
+* precondition: perimeter lock is not acquired.
+*/
+static void brcms_remove(struct bcma_device *pdev)
+{
+ struct ieee80211_hw *hw = bcma_get_drvdata(pdev);
+ struct brcms_info *wl = hw->priv;
+
+ if (wl->wlc) {
+ brcms_led_unregister(wl);
+ wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false);
+ wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
+ ieee80211_unregister_hw(hw);
+ }
+
+ brcms_free(wl);
+
+ bcma_set_drvdata(pdev, NULL);
+ ieee80211_free_hw(hw);
+}
+
+/*
+ * Precondition: Since this function is called in brcms_pci_probe() context,
+ * no locking is required.
+ */
+static void brcms_release_fw(struct brcms_info *wl)
+{
+ int i;
+ for (i = 0; i < MAX_FW_IMAGES; i++) {
+ release_firmware(wl->fw.fw_bin[i]);
+ release_firmware(wl->fw.fw_hdr[i]);
+ }
+}
+
+/*
+ * Precondition: Since this function is called in brcms_pci_probe() context,
+ * no locking is required.
+ */
+static int brcms_request_fw(struct brcms_info *wl, struct bcma_device *pdev)
+{
+ int status;
+ struct device *device = &pdev->dev;
+ char fw_name[100];
+ int i;
+
+ memset(&wl->fw, 0, sizeof(struct brcms_firmware));
+ for (i = 0; i < MAX_FW_IMAGES; i++) {
+ if (brcms_firmwares[i] == NULL)
+ break;
+ sprintf(fw_name, "%s-%d.fw", brcms_firmwares[i],
+ UCODE_LOADER_API_VER);
+ status = request_firmware(&wl->fw.fw_bin[i], fw_name, device);
+ if (status) {
+ wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
+ KBUILD_MODNAME, fw_name);
+ return status;
+ }
+ sprintf(fw_name, "%s_hdr-%d.fw", brcms_firmwares[i],
+ UCODE_LOADER_API_VER);
+ status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device);
+ if (status) {
+ wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
+ KBUILD_MODNAME, fw_name);
+ return status;
+ }
+ wl->fw.hdr_num_entries[i] =
+ wl->fw.fw_hdr[i]->size / (sizeof(struct firmware_hdr));
+ }
+ wl->fw.fw_cnt = i;
+ status = brcms_ucode_data_init(wl, &wl->ucode);
+ brcms_release_fw(wl);
+ return status;
+}
+
+static void brcms_ops_tx(struct ieee80211_hw *hw,
+ struct ieee80211_tx_control *control,
+ struct sk_buff *skb)
+{
+ struct brcms_info *wl = hw->priv;
+ struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
+
+ spin_lock_bh(&wl->lock);
+ if (!wl->pub->up) {
+ brcms_err(wl->wlc->hw->d11core, "ops->tx called while down\n");
+ kfree_skb(skb);
+ goto done;
+ }
+ if (brcms_c_sendpkt_mac80211(wl->wlc, skb, hw))
+ tx_info->rate_driver_data[0] = control->sta;
+ done:
+ spin_unlock_bh(&wl->lock);
+}
+
+static int brcms_ops_start(struct ieee80211_hw *hw)
+{
+ struct brcms_info *wl = hw->priv;
+ bool blocked;
+ int err;
+
+ if (!wl->ucode.bcm43xx_bomminor) {
+ err = brcms_request_fw(wl, wl->wlc->hw->d11core);
+ if (err)
+ return -ENOENT;
+ }
+
+ ieee80211_wake_queues(hw);
+ spin_lock_bh(&wl->lock);
+ blocked = brcms_rfkill_set_hw_state(wl);
+ spin_unlock_bh(&wl->lock);
+ if (!blocked)
+ wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
+
+ spin_lock_bh(&wl->lock);
+ /* avoid acknowledging frames before a non-monitor device is added */
+ wl->mute_tx = true;
+
+ if (!wl->pub->up)
+ if (!blocked)
+ err = brcms_up(wl);
+ else
+ err = -ERFKILL;
+ else
+ err = -ENODEV;
+ spin_unlock_bh(&wl->lock);
+
+ if (err != 0)
+ brcms_err(wl->wlc->hw->d11core, "%s: brcms_up() returned %d\n",
+ __func__, err);
+
+ bcma_core_pci_power_save(wl->wlc->hw->d11core->bus, true);
+ return err;
+}
+
+static void brcms_ops_stop(struct ieee80211_hw *hw)
+{
+ struct brcms_info *wl = hw->priv;
+ int status;
+
+ ieee80211_stop_queues(hw);
+
+ if (wl->wlc == NULL)
+ return;
+
+ spin_lock_bh(&wl->lock);
+ status = brcms_c_chipmatch(wl->wlc->hw->d11core);
+ spin_unlock_bh(&wl->lock);
+ if (!status) {
+ brcms_err(wl->wlc->hw->d11core,
+ "wl: brcms_ops_stop: chipmatch failed\n");
+ return;
+ }
+
+ bcma_core_pci_power_save(wl->wlc->hw->d11core->bus, false);
+
+ /* put driver in down state */
+ spin_lock_bh(&wl->lock);
+ brcms_down(wl);
+ spin_unlock_bh(&wl->lock);
+}
+
+static int
+brcms_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+ struct brcms_info *wl = hw->priv;
+
+ /* Just STA, AP and ADHOC for now */
+ if (vif->type != NL80211_IFTYPE_STATION &&
+ vif->type != NL80211_IFTYPE_AP &&
+ vif->type != NL80211_IFTYPE_ADHOC) {
+ brcms_err(wl->wlc->hw->d11core,
+ "%s: Attempt to add type %d, only STA, AP and AdHoc for now\n",
+ __func__, vif->type);
+ return -EOPNOTSUPP;
+ }
+
+ spin_lock_bh(&wl->lock);
+ wl->mute_tx = false;
+ brcms_c_mute(wl->wlc, false);
+ if (vif->type == NL80211_IFTYPE_STATION)
+ brcms_c_start_station(wl->wlc, vif->addr);
+ else if (vif->type == NL80211_IFTYPE_AP)
+ brcms_c_start_ap(wl->wlc, vif->addr, vif->bss_conf.bssid,
+ vif->bss_conf.ssid, vif->bss_conf.ssid_len);
+ else if (vif->type == NL80211_IFTYPE_ADHOC)
+ brcms_c_start_adhoc(wl->wlc, vif->addr);
+ spin_unlock_bh(&wl->lock);
+
+ return 0;
+}
+
+static void
+brcms_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+}
+
+static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed)
+{
+ struct ieee80211_conf *conf = &hw->conf;
+ struct brcms_info *wl = hw->priv;
+ struct bcma_device *core = wl->wlc->hw->d11core;
+ int err = 0;
+ int new_int;
+
+ spin_lock_bh(&wl->lock);
+ if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
+ brcms_c_set_beacon_listen_interval(wl->wlc,
+ conf->listen_interval);
+ }
+ if (changed & IEEE80211_CONF_CHANGE_MONITOR)
+ brcms_dbg_info(core, "%s: change monitor mode: %s\n",
+ __func__, conf->flags & IEEE80211_CONF_MONITOR ?
+ "true" : "false");
+ if (changed & IEEE80211_CONF_CHANGE_PS)
+ brcms_err(core, "%s: change power-save mode: %s (implement)\n",
+ __func__, conf->flags & IEEE80211_CONF_PS ?
+ "true" : "false");
+
+ if (changed & IEEE80211_CONF_CHANGE_POWER) {
+ err = brcms_c_set_tx_power(wl->wlc, conf->power_level);
+ if (err < 0) {
+ brcms_err(core, "%s: Error setting power_level\n",
+ __func__);
+ goto config_out;
+ }
+ new_int = brcms_c_get_tx_power(wl->wlc);
+ if (new_int != conf->power_level)
+ brcms_err(core,
+ "%s: Power level req != actual, %d %d\n",
+ __func__, conf->power_level,
+ new_int);
+ }
+ if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
+ if (conf->chandef.width == NL80211_CHAN_WIDTH_20 ||
+ conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
+ err = brcms_c_set_channel(wl->wlc,
+ conf->chandef.chan->hw_value);
+ else
+ err = -ENOTSUPP;
+ }
+ if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
+ err = brcms_c_set_rate_limit(wl->wlc,
+ conf->short_frame_max_tx_count,
+ conf->long_frame_max_tx_count);
+
+ config_out:
+ spin_unlock_bh(&wl->lock);
+ return err;
+}
+
+static void
+brcms_ops_bss_info_changed(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *info, u32 changed)
+{
+ struct brcms_info *wl = hw->priv;
+ struct bcma_device *core = wl->wlc->hw->d11core;
+
+ if (changed & BSS_CHANGED_ASSOC) {
+ /* association status changed (associated/disassociated)
+ * also implies a change in the AID.
+ */
+ brcms_err(core, "%s: %s: %sassociated\n", KBUILD_MODNAME,
+ __func__, info->assoc ? "" : "dis");
+ spin_lock_bh(&wl->lock);
+ brcms_c_associate_upd(wl->wlc, info->assoc);
+ spin_unlock_bh(&wl->lock);
+ }
+ if (changed & BSS_CHANGED_ERP_SLOT) {
+ s8 val;
+
+ /* slot timing changed */
+ if (info->use_short_slot)
+ val = 1;
+ else
+ val = 0;
+ spin_lock_bh(&wl->lock);
+ brcms_c_set_shortslot_override(wl->wlc, val);
+ spin_unlock_bh(&wl->lock);
+ }
+
+ if (changed & BSS_CHANGED_HT) {
+ /* 802.11n parameters changed */
+ u16 mode = info->ht_operation_mode;
+
+ spin_lock_bh(&wl->lock);
+ brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_CFG,
+ mode & IEEE80211_HT_OP_MODE_PROTECTION);
+ brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_NONGF,
+ mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
+ brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_OBSS,
+ mode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT);
+ spin_unlock_bh(&wl->lock);
+ }
+ if (changed & BSS_CHANGED_BASIC_RATES) {
+ struct ieee80211_supported_band *bi;
+ u32 br_mask, i;
+ u16 rate;
+ struct brcm_rateset rs;
+ int error;
+
+ /* retrieve the current rates */
+ spin_lock_bh(&wl->lock);
+ brcms_c_get_current_rateset(wl->wlc, &rs);
+ spin_unlock_bh(&wl->lock);
+
+ br_mask = info->basic_rates;
+ bi = hw->wiphy->bands[brcms_c_get_curband(wl->wlc)];
+ for (i = 0; i < bi->n_bitrates; i++) {
+ /* convert to internal rate value */
+ rate = (bi->bitrates[i].bitrate << 1) / 10;
+
+ /* set/clear basic rate flag */
+ brcms_set_basic_rate(&rs, rate, br_mask & 1);
+ br_mask >>= 1;
+ }
+
+ /* update the rate set */
+ spin_lock_bh(&wl->lock);
+ error = brcms_c_set_rateset(wl->wlc, &rs);
+ spin_unlock_bh(&wl->lock);
+ if (error)
+ brcms_err(core, "changing basic rates failed: %d\n",
+ error);
+ }
+ if (changed & BSS_CHANGED_BEACON_INT) {
+ /* Beacon interval changed */
+ spin_lock_bh(&wl->lock);
+ brcms_c_set_beacon_period(wl->wlc, info->beacon_int);
+ spin_unlock_bh(&wl->lock);
+ }
+ if (changed & BSS_CHANGED_BSSID) {
+ /* BSSID changed, for whatever reason (IBSS and managed mode) */
+ spin_lock_bh(&wl->lock);
+ brcms_c_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET, info->bssid);
+ spin_unlock_bh(&wl->lock);
+ }
+ if (changed & BSS_CHANGED_SSID) {
+ /* BSSID changed, for whatever reason (IBSS and managed mode) */
+ spin_lock_bh(&wl->lock);
+ brcms_c_set_ssid(wl->wlc, info->ssid, info->ssid_len);
+ spin_unlock_bh(&wl->lock);
+ }
+ if (changed & BSS_CHANGED_BEACON) {
+ /* Beacon data changed, retrieve new beacon (beaconing modes) */
+ struct sk_buff *beacon;
+ u16 tim_offset = 0;
+
+ spin_lock_bh(&wl->lock);
+ beacon = ieee80211_beacon_get_tim(hw, vif, &tim_offset, NULL);
+ brcms_c_set_new_beacon(wl->wlc, beacon, tim_offset,
+ info->dtim_period);
+ spin_unlock_bh(&wl->lock);
+ }
+
+ if (changed & BSS_CHANGED_AP_PROBE_RESP) {
+ struct sk_buff *probe_resp;
+
+ spin_lock_bh(&wl->lock);
+ probe_resp = ieee80211_proberesp_get(hw, vif);
+ brcms_c_set_new_probe_resp(wl->wlc, probe_resp);
+ spin_unlock_bh(&wl->lock);
+ }
+
+ if (changed & BSS_CHANGED_BEACON_ENABLED) {
+ /* Beaconing should be enabled/disabled (beaconing modes) */
+ brcms_err(core, "%s: Beacon enabled: %s\n", __func__,
+ info->enable_beacon ? "true" : "false");
+ if (info->enable_beacon &&
+ hw->wiphy->flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) {
+ brcms_c_enable_probe_resp(wl->wlc, true);
+ } else {
+ brcms_c_enable_probe_resp(wl->wlc, false);
+ }
+ }
+
+ if (changed & BSS_CHANGED_CQM) {
+ /* Connection quality monitor config changed */
+ brcms_err(core, "%s: cqm change: threshold %d, hys %d "
+ " (implement)\n", __func__, info->cqm_rssi_thold,
+ info->cqm_rssi_hyst);
+ }
+
+ if (changed & BSS_CHANGED_IBSS) {
+ /* IBSS join status changed */
+ brcms_err(core, "%s: IBSS joined: %s (implement)\n",
+ __func__, info->ibss_joined ? "true" : "false");
+ }
+
+ if (changed & BSS_CHANGED_ARP_FILTER) {
+ /* Hardware ARP filter address list or state changed */
+ brcms_err(core, "%s: arp filtering: %d addresses"
+ " (implement)\n", __func__, info->arp_addr_cnt);
+ }
+
+ if (changed & BSS_CHANGED_QOS) {
+ /*
+ * QoS for this association was enabled/disabled.
+ * Note that it is only ever disabled for station mode.
+ */
+ brcms_err(core, "%s: qos enabled: %s (implement)\n",
+ __func__, info->qos ? "true" : "false");
+ }
+ return;
+}
+
+static void
+brcms_ops_configure_filter(struct ieee80211_hw *hw,
+ unsigned int changed_flags,
+ unsigned int *total_flags, u64 multicast)
+{
+ struct brcms_info *wl = hw->priv;
+ struct bcma_device *core = wl->wlc->hw->d11core;
+
+ changed_flags &= MAC_FILTERS;
+ *total_flags &= MAC_FILTERS;
+
+ if (changed_flags & FIF_PROMISC_IN_BSS)
+ brcms_dbg_info(core, "FIF_PROMISC_IN_BSS\n");
+ if (changed_flags & FIF_ALLMULTI)
+ brcms_dbg_info(core, "FIF_ALLMULTI\n");
+ if (changed_flags & FIF_FCSFAIL)
+ brcms_dbg_info(core, "FIF_FCSFAIL\n");
+ if (changed_flags & FIF_CONTROL)
+ brcms_dbg_info(core, "FIF_CONTROL\n");
+ if (changed_flags & FIF_OTHER_BSS)
+ brcms_dbg_info(core, "FIF_OTHER_BSS\n");
+ if (changed_flags & FIF_PSPOLL)
+ brcms_dbg_info(core, "FIF_PSPOLL\n");
+ if (changed_flags & FIF_BCN_PRBRESP_PROMISC)
+ brcms_dbg_info(core, "FIF_BCN_PRBRESP_PROMISC\n");
+
+ spin_lock_bh(&wl->lock);
+ brcms_c_mac_promisc(wl->wlc, *total_flags);
+ spin_unlock_bh(&wl->lock);
+ return;
+}
+
+static void brcms_ops_sw_scan_start(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ const u8 *mac_addr)
+{
+ struct brcms_info *wl = hw->priv;
+ spin_lock_bh(&wl->lock);
+ brcms_c_scan_start(wl->wlc);
+ spin_unlock_bh(&wl->lock);
+ return;
+}
+
+static void brcms_ops_sw_scan_complete(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct brcms_info *wl = hw->priv;
+ spin_lock_bh(&wl->lock);
+ brcms_c_scan_stop(wl->wlc);
+ spin_unlock_bh(&wl->lock);
+ return;
+}
+
+static int
+brcms_ops_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue,
+ const struct ieee80211_tx_queue_params *params)
+{
+ struct brcms_info *wl = hw->priv;
+
+ spin_lock_bh(&wl->lock);
+ brcms_c_wme_setparams(wl->wlc, queue, params, true);
+ spin_unlock_bh(&wl->lock);
+
+ return 0;
+}
+
+static int
+brcms_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta)
+{
+ struct brcms_info *wl = hw->priv;
+ struct scb *scb = &wl->wlc->pri_scb;
+
+ brcms_c_init_scb(scb);
+
+ wl->pub->global_ampdu = &(scb->scb_ampdu);
+ wl->pub->global_ampdu->scb = scb;
+ wl->pub->global_ampdu->max_pdu = 16;
+
+ /*
+ * minstrel_ht initiates addBA on our behalf by calling
+ * ieee80211_start_tx_ba_session()
+ */
+ return 0;
+}
+
+static int
+brcms_ops_ampdu_action(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ enum ieee80211_ampdu_mlme_action action,
+ struct ieee80211_sta *sta, u16 tid, u16 *ssn,
+ u8 buf_size)
+{
+ struct brcms_info *wl = hw->priv;
+ struct scb *scb = &wl->wlc->pri_scb;
+ int status;
+
+ if (WARN_ON(scb->magic != SCB_MAGIC))
+ return -EIDRM;
+ switch (action) {
+ case IEEE80211_AMPDU_RX_START:
+ break;
+ case IEEE80211_AMPDU_RX_STOP:
+ break;
+ case IEEE80211_AMPDU_TX_START:
+ spin_lock_bh(&wl->lock);
+ status = brcms_c_aggregatable(wl->wlc, tid);
+ spin_unlock_bh(&wl->lock);
+ if (!status) {
+ brcms_err(wl->wlc->hw->d11core,
+ "START: tid %d is not agg\'able\n", tid);
+ return -EINVAL;
+ }
+ ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ break;
+
+ case IEEE80211_AMPDU_TX_STOP_CONT:
+ case IEEE80211_AMPDU_TX_STOP_FLUSH:
+ case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
+ spin_lock_bh(&wl->lock);
+ brcms_c_ampdu_flush(wl->wlc, sta, tid);
+ spin_unlock_bh(&wl->lock);
+ ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ break;
+ case IEEE80211_AMPDU_TX_OPERATIONAL:
+ /*
+ * BA window size from ADDBA response ('buf_size') defines how
+ * many outstanding MPDUs are allowed for the BA stream by
+ * recipient and traffic class. 'ampdu_factor' gives maximum
+ * AMPDU size.
+ */
+ spin_lock_bh(&wl->lock);
+ brcms_c_ampdu_tx_operational(wl->wlc, tid, buf_size,
+ (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
+ sta->ht_cap.ampdu_factor)) - 1);
+ spin_unlock_bh(&wl->lock);
+ /* Power save wakeup */
+ break;
+ default:
+ brcms_err(wl->wlc->hw->d11core,
+ "%s: Invalid command, ignoring\n", __func__);
+ }
+
+ return 0;
+}
+
+static void brcms_ops_rfkill_poll(struct ieee80211_hw *hw)
+{
+ struct brcms_info *wl = hw->priv;
+ bool blocked;
+
+ spin_lock_bh(&wl->lock);
+ blocked = brcms_c_check_radio_disabled(wl->wlc);
+ spin_unlock_bh(&wl->lock);
+
+ wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
+}
+
+static bool brcms_tx_flush_completed(struct brcms_info *wl)
+{
+ bool result;
+
+ spin_lock_bh(&wl->lock);
+ result = brcms_c_tx_flush_completed(wl->wlc);
+ spin_unlock_bh(&wl->lock);
+ return result;
+}
+
+static void brcms_ops_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ u32 queues, bool drop)
+{
+ struct brcms_info *wl = hw->priv;
+ int ret;
+
+ no_printk("%s: drop = %s\n", __func__, drop ? "true" : "false");
+
+ ret = wait_event_timeout(wl->tx_flush_wq,
+ brcms_tx_flush_completed(wl),
+ msecs_to_jiffies(BRCMS_FLUSH_TIMEOUT));
+
+ brcms_dbg_mac80211(wl->wlc->hw->d11core,
+ "ret=%d\n", jiffies_to_msecs(ret));
+}
+
+static u64 brcms_ops_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+ struct brcms_info *wl = hw->priv;
+ u64 tsf;
+
+ spin_lock_bh(&wl->lock);
+ tsf = brcms_c_tsf_get(wl->wlc);
+ spin_unlock_bh(&wl->lock);
+
+ return tsf;
+}
+
+static void brcms_ops_set_tsf(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif, u64 tsf)
+{
+ struct brcms_info *wl = hw->priv;
+
+ spin_lock_bh(&wl->lock);
+ brcms_c_tsf_set(wl->wlc, tsf);
+ spin_unlock_bh(&wl->lock);
+}
+
+static const struct ieee80211_ops brcms_ops = {
+ .tx = brcms_ops_tx,
+ .start = brcms_ops_start,
+ .stop = brcms_ops_stop,
+ .add_interface = brcms_ops_add_interface,
+ .remove_interface = brcms_ops_remove_interface,
+ .config = brcms_ops_config,
+ .bss_info_changed = brcms_ops_bss_info_changed,
+ .configure_filter = brcms_ops_configure_filter,
+ .sw_scan_start = brcms_ops_sw_scan_start,
+ .sw_scan_complete = brcms_ops_sw_scan_complete,
+ .conf_tx = brcms_ops_conf_tx,
+ .sta_add = brcms_ops_sta_add,
+ .ampdu_action = brcms_ops_ampdu_action,
+ .rfkill_poll = brcms_ops_rfkill_poll,
+ .flush = brcms_ops_flush,
+ .get_tsf = brcms_ops_get_tsf,
+ .set_tsf = brcms_ops_set_tsf,
+};
+
+void brcms_dpc(unsigned long data)
+{
+ struct brcms_info *wl;
+
+ wl = (struct brcms_info *) data;
+
+ spin_lock_bh(&wl->lock);
+
+ /* call the common second level interrupt handler */
+ if (wl->pub->up) {
+ if (wl->resched) {
+ unsigned long flags;
+
+ spin_lock_irqsave(&wl->isr_lock, flags);
+ brcms_c_intrsupd(wl->wlc);
+ spin_unlock_irqrestore(&wl->isr_lock, flags);
+ }
+
+ wl->resched = brcms_c_dpc(wl->wlc, true);
+ }
+
+ /* brcms_c_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 */
+ brcms_intrson(wl);
+
+ done:
+ spin_unlock_bh(&wl->lock);
+ wake_up(&wl->tx_flush_wq);
+}
+
+static irqreturn_t brcms_isr(int irq, void *dev_id)
+{
+ struct brcms_info *wl;
+ irqreturn_t ret = IRQ_NONE;
+
+ wl = (struct brcms_info *) dev_id;
+
+ spin_lock(&wl->isr_lock);
+
+ /* call common first level interrupt handler */
+ if (brcms_c_isr(wl->wlc)) {
+ /* schedule second level handler */
+ tasklet_schedule(&wl->tasklet);
+ ret = IRQ_HANDLED;
+ }
+
+ spin_unlock(&wl->isr_lock);
+
+ return ret;
+}
+
+/*
+ * is called in brcms_pci_probe() context, therefore no locking required.
+ */
+static int ieee_hw_rate_init(struct ieee80211_hw *hw)
+{
+ struct brcms_info *wl = hw->priv;
+ struct brcms_c_info *wlc = wl->wlc;
+ struct ieee80211_supported_band *band;
+ int has_5g = 0;
+ u16 phy_type;
+
+ hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
+ hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
+
+ phy_type = brcms_c_get_phy_type(wl->wlc, 0);
+ if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) {
+ band = &wlc->bandstate[BAND_2G_INDEX]->band;
+ *band = brcms_band_2GHz_nphy_template;
+ if (phy_type == PHY_TYPE_LCN) {
+ /* Single stream */
+ band->ht_cap.mcs.rx_mask[1] = 0;
+ band->ht_cap.mcs.rx_highest = cpu_to_le16(72);
+ }
+ hw->wiphy->bands[IEEE80211_BAND_2GHZ] = band;
+ } else {
+ return -EPERM;
+ }
+
+ /* Assume all bands use the same phy. True for 11n devices. */
+ if (wl->pub->_nbands > 1) {
+ has_5g++;
+ if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) {
+ band = &wlc->bandstate[BAND_5G_INDEX]->band;
+ *band = brcms_band_5GHz_nphy_template;
+ hw->wiphy->bands[IEEE80211_BAND_5GHZ] = band;
+ } else {
+ return -EPERM;
+ }
+ }
+ return 0;
+}
+
+/*
+ * is called in brcms_pci_probe() context, therefore no locking required.
+ */
+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 = brcms_c_get_header_len();
+ hw->queues = N_TX_QUEUES;
+ hw->max_rates = 2; /* Primary rate and 1 fallback rate */
+
+ /* channel change time is dependent on chip and band */
+ hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
+ BIT(NL80211_IFTYPE_AP) |
+ BIT(NL80211_IFTYPE_ADHOC);
+
+ /*
+ * deactivate sending probe responses by ucude, because this will
+ * cause problems when WPS is used.
+ *
+ * hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
+ */
+
+ hw->rate_control_algorithm = "minstrel_ht";
+
+ hw->sta_data_size = 0;
+ return ieee_hw_rate_init(hw);
+}
+
+/**
+ * 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.
+ *
+ * is called in brcms_bcma_probe() context, therefore no locking required.
+ */
+static struct brcms_info *brcms_attach(struct bcma_device *pdev)
+{
+ struct brcms_info *wl = NULL;
+ int unit, err;
+ struct ieee80211_hw *hw;
+ u8 perm[ETH_ALEN];
+
+ unit = n_adapters_found;
+ err = 0;
+
+ if (unit < 0)
+ return NULL;
+
+ /* allocate private info */
+ hw = bcma_get_drvdata(pdev);
+ if (hw != NULL)
+ wl = hw->priv;
+ if (WARN_ON(hw == NULL) || WARN_ON(wl == NULL))
+ return NULL;
+ wl->wiphy = hw->wiphy;
+
+ atomic_set(&wl->callbacks, 0);
+
+ init_waitqueue_head(&wl->tx_flush_wq);
+
+ /* setup the bottom half handler */
+ tasklet_init(&wl->tasklet, brcms_dpc, (unsigned long) wl);
+
+ spin_lock_init(&wl->lock);
+ spin_lock_init(&wl->isr_lock);
+
+ /* common load-time initialization */
+ wl->wlc = brcms_c_attach((void *)wl, pdev, unit, false, &err);
+ if (!wl->wlc) {
+ wiphy_err(wl->wiphy, "%s: attach() failed with code %d\n",
+ KBUILD_MODNAME, err);
+ goto fail;
+ }
+ wl->pub = brcms_c_pub(wl->wlc);
+
+ wl->pub->ieee_hw = hw;
+
+ /* register our interrupt handler */
+ if (request_irq(pdev->irq, brcms_isr,
+ IRQF_SHARED, KBUILD_MODNAME, wl)) {
+ wiphy_err(wl->wiphy, "wl%d: request_irq() failed\n", unit);
+ goto fail;
+ }
+ wl->irq = pdev->irq;
+
+ /* register module */
+ brcms_c_module_register(wl->pub, "linux", wl, NULL);
+
+ if (ieee_hw_init(hw)) {
+ wiphy_err(wl->wiphy, "wl%d: %s: ieee_hw_init failed!\n", unit,
+ __func__);
+ goto fail;
+ }
+
+ brcms_c_regd_init(wl->wlc);
+
+ memcpy(perm, &wl->pub->cur_etheraddr, ETH_ALEN);
+ if (WARN_ON(!is_valid_ether_addr(perm)))
+ goto fail;
+ SET_IEEE80211_PERM_ADDR(hw, perm);
+
+ err = ieee80211_register_hw(hw);
+ if (err)
+ wiphy_err(wl->wiphy, "%s: ieee80211_register_hw failed, status"
+ "%d\n", __func__, err);
+
+ if (wl->pub->srom_ccode[0] &&
+ regulatory_hint(wl->wiphy, wl->pub->srom_ccode))
+ wiphy_err(wl->wiphy, "%s: regulatory hint failed\n", __func__);
+
+ brcms_debugfs_attach(wl->pub);
+ brcms_debugfs_create_files(wl->pub);
+ n_adapters_found++;
+ return wl;
+
+fail:
+ brcms_free(wl);
+ return NULL;
+}
+
+
+
+/**
+ * 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 brcms_attach() on it.
+ *
+ * Perimeter lock is initialized in the course of this function.
+ */
+static int brcms_bcma_probe(struct bcma_device *pdev)
+{
+ struct brcms_info *wl;
+ struct ieee80211_hw *hw;
+
+ dev_info(&pdev->dev, "mfg %x core %x rev %d class %d irq %d\n",
+ pdev->id.manuf, pdev->id.id, pdev->id.rev, pdev->id.class,
+ pdev->irq);
+
+ if ((pdev->id.manuf != BCMA_MANUF_BCM) ||
+ (pdev->id.id != BCMA_CORE_80211))
+ return -ENODEV;
+
+ hw = ieee80211_alloc_hw(sizeof(struct brcms_info), &brcms_ops);
+ if (!hw) {
+ pr_err("%s: ieee80211_alloc_hw failed\n", __func__);
+ return -ENOMEM;
+ }
+
+ SET_IEEE80211_DEV(hw, &pdev->dev);
+
+ bcma_set_drvdata(pdev, hw);
+
+ memset(hw->priv, 0, sizeof(*wl));
+
+ wl = brcms_attach(pdev);
+ if (!wl) {
+ pr_err("%s: brcms_attach failed!\n", __func__);
+ return -ENODEV;
+ }
+ brcms_led_register(wl);
+
+ return 0;
+}
+
+static int brcms_suspend(struct bcma_device *pdev)
+{
+ struct brcms_info *wl;
+ struct ieee80211_hw *hw;
+
+ hw = bcma_get_drvdata(pdev);
+ wl = hw->priv;
+ if (!wl) {
+ pr_err("%s: %s: no driver private struct!\n", KBUILD_MODNAME,
+ __func__);
+ return -ENODEV;
+ }
+
+ /* only need to flag hw is down for proper resume */
+ spin_lock_bh(&wl->lock);
+ wl->pub->hw_up = false;
+ spin_unlock_bh(&wl->lock);
+
+ brcms_dbg_info(wl->wlc->hw->d11core, "brcms_suspend ok\n");
+
+ return 0;
+}
+
+static int brcms_resume(struct bcma_device *pdev)
+{
+ return 0;
+}
+
+static struct bcma_driver brcms_bcma_driver = {
+ .name = KBUILD_MODNAME,
+ .probe = brcms_bcma_probe,
+ .suspend = brcms_suspend,
+ .resume = brcms_resume,
+ .remove = brcms_remove,
+ .id_table = brcms_coreid_table,
+};
+
+/**
+ * This is the main entry point for the brcmsmac driver.
+ *
+ * This function is scheduled upon module initialization and
+ * does the driver registration, which result in brcms_bcma_probe()
+ * call resulting in the driver bringup.
+ */
+static void brcms_driver_init(struct work_struct *work)
+{
+ int error;
+
+ error = bcma_driver_register(&brcms_bcma_driver);
+ if (error)
+ pr_err("%s: register returned %d\n", __func__, error);
+}
+
+static DECLARE_WORK(brcms_driver_work, brcms_driver_init);
+
+static int __init brcms_module_init(void)
+{
+ brcms_debugfs_init();
+ if (!schedule_work(&brcms_driver_work))
+ return -EBUSY;
+
+ return 0;
+}
+
+/**
+ * This function unloads the brcmsmac driver from the system.
+ *
+ * This function unconditionally unloads the brcmsmac driver module from the
+ * system.
+ *
+ */
+static void __exit brcms_module_exit(void)
+{
+ cancel_work_sync(&brcms_driver_work);
+ bcma_driver_unregister(&brcms_bcma_driver);
+ brcms_debugfs_exit();
+}
+
+module_init(brcms_module_init);
+module_exit(brcms_module_exit);
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+void brcms_txflowcontrol(struct brcms_info *wl, struct brcms_if *wlif,
+ bool state, int prio)
+{
+ brcms_err(wl->wlc->hw->d11core, "Shouldn't be here %s\n", __func__);
+}
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+void brcms_init(struct brcms_info *wl)
+{
+ brcms_dbg_info(wl->wlc->hw->d11core, "Initializing wl%d\n",
+ wl->pub->unit);
+ brcms_reset(wl);
+ brcms_c_init(wl->wlc, wl->mute_tx);
+}
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+uint brcms_reset(struct brcms_info *wl)
+{
+ brcms_dbg_info(wl->wlc->hw->d11core, "Resetting wl%d\n", wl->pub->unit);
+ brcms_c_reset(wl->wlc);
+
+ /* dpc will not be rescheduled */
+ wl->resched = false;
+
+ /* inform publicly that interface is down */
+ wl->pub->up = false;
+
+ return 0;
+}
+
+void brcms_fatal_error(struct brcms_info *wl)
+{
+ brcms_err(wl->wlc->hw->d11core, "wl%d: fatal error, reinitializing\n",
+ wl->wlc->pub->unit);
+ brcms_reset(wl);
+ ieee80211_restart_hw(wl->pub->ieee_hw);
+}
+
+/*
+ * These are interrupt on/off entry points. Disable interrupts
+ * during interrupt state transition.
+ */
+void brcms_intrson(struct brcms_info *wl)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&wl->isr_lock, flags);
+ brcms_c_intrson(wl->wlc);
+ spin_unlock_irqrestore(&wl->isr_lock, flags);
+}
+
+u32 brcms_intrsoff(struct brcms_info *wl)
+{
+ unsigned long flags;
+ u32 status;
+
+ spin_lock_irqsave(&wl->isr_lock, flags);
+ status = brcms_c_intrsoff(wl->wlc);
+ spin_unlock_irqrestore(&wl->isr_lock, flags);
+ return status;
+}
+
+void brcms_intrsrestore(struct brcms_info *wl, u32 macintmask)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&wl->isr_lock, flags);
+ brcms_c_intrsrestore(wl->wlc, macintmask);
+ spin_unlock_irqrestore(&wl->isr_lock, flags);
+}
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+int brcms_up(struct brcms_info *wl)
+{
+ int error = 0;
+
+ if (wl->pub->up)
+ return 0;
+
+ error = brcms_c_up(wl->wlc);
+
+ return error;
+}
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+void brcms_down(struct brcms_info *wl)
+{
+ uint callbacks, ret_val = 0;
+
+ /* call common down function */
+ ret_val = brcms_c_down(wl->wlc);
+ callbacks = atomic_read(&wl->callbacks) - ret_val;
+
+ /* wait for down callbacks to complete */
+ spin_unlock_bh(&wl->lock);
+
+ /* 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);
+
+ spin_lock_bh(&wl->lock);
+}
+
+/*
+* precondition: perimeter lock is not acquired
+ */
+static void _brcms_timer(struct work_struct *work)
+{
+ struct brcms_timer *t = container_of(work, struct brcms_timer,
+ dly_wrk.work);
+
+ spin_lock_bh(&t->wl->lock);
+
+ if (t->set) {
+ if (t->periodic) {
+ atomic_inc(&t->wl->callbacks);
+ ieee80211_queue_delayed_work(t->wl->pub->ieee_hw,
+ &t->dly_wrk,
+ msecs_to_jiffies(t->ms));
+ } else {
+ t->set = false;
+ }
+
+ t->fn(t->arg);
+ }
+
+ atomic_dec(&t->wl->callbacks);
+
+ spin_unlock_bh(&t->wl->lock);
+}
+
+/*
+ * Adds a timer to the list. Caller supplies a timer function.
+ * Is called from wlc.
+ *
+ * precondition: perimeter lock has been acquired
+ */
+struct brcms_timer *brcms_init_timer(struct brcms_info *wl,
+ void (*fn) (void *arg),
+ void *arg, const char *name)
+{
+ struct brcms_timer *t;
+
+ t = kzalloc(sizeof(struct brcms_timer), GFP_ATOMIC);
+ if (!t)
+ return NULL;
+
+ INIT_DELAYED_WORK(&t->dly_wrk, _brcms_timer);
+ t->wl = wl;
+ t->fn = fn;
+ t->arg = arg;
+ t->next = wl->timers;
+ wl->timers = t;
+
+#ifdef DEBUG
+ t->name = kmalloc(strlen(name) + 1, GFP_ATOMIC);
+ if (t->name)
+ strcpy(t->name, name);
+#endif
+
+ return t;
+}
+
+/*
+ * adds only the kernel timer since it's going to be more accurate
+ * as well as it's easier to make it periodic
+ *
+ * precondition: perimeter lock has been acquired
+ */
+void brcms_add_timer(struct brcms_timer *t, uint ms, int periodic)
+{
+ struct ieee80211_hw *hw = t->wl->pub->ieee_hw;
+
+#ifdef DEBUG
+ if (t->set)
+ brcms_dbg_info(t->wl->wlc->hw->d11core,
+ "%s: Already set. Name: %s, per %d\n",
+ __func__, t->name, periodic);
+#endif
+ t->ms = ms;
+ t->periodic = (bool) periodic;
+ if (!t->set) {
+ t->set = true;
+ atomic_inc(&t->wl->callbacks);
+ }
+
+ ieee80211_queue_delayed_work(hw, &t->dly_wrk, msecs_to_jiffies(ms));
+}
+
+/*
+ * return true if timer successfully deleted, false if still pending
+ *
+ * precondition: perimeter lock has been acquired
+ */
+bool brcms_del_timer(struct brcms_timer *t)
+{
+ if (t->set) {
+ t->set = false;
+ if (!cancel_delayed_work(&t->dly_wrk))
+ return false;
+
+ atomic_dec(&t->wl->callbacks);
+ }
+
+ return true;
+}
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+void brcms_free_timer(struct brcms_timer *t)
+{
+ struct brcms_info *wl = t->wl;
+ struct brcms_timer *tmp;
+
+ /* delete the timer in case it is active */
+ brcms_del_timer(t);
+
+ if (wl->timers == t) {
+ wl->timers = wl->timers->next;
+#ifdef DEBUG
+ kfree(t->name);
+#endif
+ kfree(t);
+ return;
+
+ }
+
+ tmp = wl->timers;
+ while (tmp) {
+ if (tmp->next == t) {
+ tmp->next = t->next;
+#ifdef DEBUG
+ kfree(t->name);
+#endif
+ kfree(t);
+ return;
+ }
+ tmp = tmp->next;
+ }
+
+}
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf, u32 idx)
+{
+ int i, entry;
+ const u8 *pdata;
+ struct firmware_hdr *hdr;
+ for (i = 0; i < wl->fw.fw_cnt; i++) {
+ hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
+ for (entry = 0; entry < wl->fw.hdr_num_entries[i];
+ entry++, hdr++) {
+ u32 len = le32_to_cpu(hdr->len);
+ if (le32_to_cpu(hdr->idx) == idx) {
+ pdata = wl->fw.fw_bin[i]->data +
+ le32_to_cpu(hdr->offset);
+ *pbuf = kmemdup(pdata, len, GFP_ATOMIC);
+ if (*pbuf == NULL)
+ goto fail;
+
+ return 0;
+ }
+ }
+ }
+ brcms_err(wl->wlc->hw->d11core,
+ "ERROR: ucode buf tag:%d can not be found!\n", idx);
+ *pbuf = NULL;
+fail:
+ return -ENODATA;
+}
+
+/*
+ * Precondition: Since this function is called in brcms_bcma_probe() context,
+ * no locking is required.
+ */
+int brcms_ucode_init_uint(struct brcms_info *wl, size_t *n_bytes, u32 idx)
+{
+ int i, entry;
+ const u8 *pdata;
+ struct firmware_hdr *hdr;
+ for (i = 0; i < wl->fw.fw_cnt; i++) {
+ hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
+ for (entry = 0; entry < wl->fw.hdr_num_entries[i];
+ entry++, hdr++) {
+ if (le32_to_cpu(hdr->idx) == idx) {
+ pdata = wl->fw.fw_bin[i]->data +
+ le32_to_cpu(hdr->offset);
+ if (le32_to_cpu(hdr->len) != 4) {
+ brcms_err(wl->wlc->hw->d11core,
+ "ERROR: fw hdr len\n");
+ return -ENOMSG;
+ }
+ *n_bytes = le32_to_cpu(*((__le32 *) pdata));
+ return 0;
+ }
+ }
+ }
+ brcms_err(wl->wlc->hw->d11core,
+ "ERROR: ucode tag:%d can not be found!\n", idx);
+ return -ENOMSG;
+}
+
+/*
+ * precondition: can both be called locked and unlocked
+ */
+void brcms_ucode_free_buf(void *p)
+{
+ kfree(p);
+}
+
+/*
+ * checks validity of all firmware images loaded from user space
+ *
+ * Precondition: Since this function is called in brcms_bcma_probe() context,
+ * no locking is required.
+ */
+int brcms_check_firmwares(struct brcms_info *wl)
+{
+ int i;
+ int entry;
+ int rc = 0;
+ const struct firmware *fw;
+ const struct firmware *fw_hdr;
+ struct firmware_hdr *ucode_hdr;
+ for (i = 0; i < MAX_FW_IMAGES && 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) {
+ wiphy_err(wl->wiphy, "%s: invalid bin/hdr fw\n",
+ __func__);
+ rc = -EBADF;
+ } else if (fw_hdr->size % sizeof(struct firmware_hdr)) {
+ wiphy_err(wl->wiphy, "%s: non integral fw hdr file "
+ "size %zu/%zu\n", __func__, fw_hdr->size,
+ sizeof(struct firmware_hdr));
+ rc = -EBADF;
+ } else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) {
+ wiphy_err(wl->wiphy, "%s: out of bounds fw file size %zu\n",
+ __func__, fw->size);
+ rc = -EBADF;
+ } else {
+ /* check if ucode section overruns firmware image */
+ ucode_hdr = (struct firmware_hdr *)fw_hdr->data;
+ for (entry = 0; entry < wl->fw.hdr_num_entries[i] &&
+ !rc; entry++, ucode_hdr++) {
+ if (le32_to_cpu(ucode_hdr->offset) +
+ le32_to_cpu(ucode_hdr->len) >
+ fw->size) {
+ wiphy_err(wl->wiphy,
+ "%s: conflicting bin/hdr\n",
+ __func__);
+ rc = -EBADF;
+ }
+ }
+ }
+ }
+ if (rc == 0 && wl->fw.fw_cnt != i) {
+ wiphy_err(wl->wiphy, "%s: invalid fw_cnt=%d\n", __func__,
+ wl->fw.fw_cnt);
+ rc = -EBADF;
+ }
+ return rc;
+}
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+bool brcms_rfkill_set_hw_state(struct brcms_info *wl)
+{
+ bool blocked = brcms_c_check_radio_disabled(wl->wlc);
+
+ spin_unlock_bh(&wl->lock);
+ wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
+ if (blocked)
+ wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy);
+ spin_lock_bh(&wl->lock);
+ return blocked;
+}
Code Review / kvmfornfv.git / blobdiff