iwl3945-$(CONFIG_IWL3945_LEDS) += iwl-3945-led.o
obj-$(CONFIG_IWL4965) += iwl4965.o
-iwl4965-objs := iwl4965-base.o iwl-4965.o iwl-agn-rs.o
+iwl4965-objs := iwl-agn.o iwl-4965.o iwl-agn-rs.o
-ifeq ($(CONFIG_IWL5000),y)
- iwl4965-objs += iwl-5000.o
-endif
+iwl4965-$(CONFIG_IWL5000) += iwl-5000.o
--- /dev/null
+/******************************************************************************
+ *
+ * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
+ *
+ * Portions of this file are derived from the ipw3945 project, as well
+ * as portions of the ieee80211 subsystem header files.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/delay.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/wireless.h>
+#include <linux/firmware.h>
+#include <linux/etherdevice.h>
+#include <linux/if_arp.h>
+
+#include <net/mac80211.h>
+
+#include <asm/div64.h>
+
+#include "iwl-eeprom.h"
+#include "iwl-dev.h"
+#include "iwl-core.h"
+#include "iwl-io.h"
+#include "iwl-helpers.h"
+#include "iwl-sta.h"
+#include "iwl-calib.h"
+
+
+/******************************************************************************
+ *
+ * module boiler plate
+ *
+ ******************************************************************************/
+
+/*
+ * module name, copyright, version, etc.
+ * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
+ */
+
+#define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+#define VD "d"
+#else
+#define VD
+#endif
+
+#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
+#define VS "s"
+#else
+#define VS
+#endif
+
+#define DRV_VERSION IWLWIFI_VERSION VD VS
+
+
+MODULE_DESCRIPTION(DRV_DESCRIPTION);
+MODULE_VERSION(DRV_VERSION);
+MODULE_AUTHOR(DRV_COPYRIGHT);
+MODULE_LICENSE("GPL");
+
+/*************** STATION TABLE MANAGEMENT ****
+ * mac80211 should be examined to determine if sta_info is duplicating
+ * the functionality provided here
+ */
+
+/**************************************************************/
+
+
+
+static void iwl4965_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt)
+{
+ struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
+
+ if (hw_decrypt)
+ rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
+ else
+ rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
+
+}
+
+/**
+ * iwl4965_check_rxon_cmd - validate RXON structure is valid
+ *
+ * NOTE: This is really only useful during development and can eventually
+ * be #ifdef'd out once the driver is stable and folks aren't actively
+ * making changes
+ */
+static int iwl4965_check_rxon_cmd(struct iwl_rxon_cmd *rxon)
+{
+ int error = 0;
+ int counter = 1;
+
+ if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
+ error |= le32_to_cpu(rxon->flags &
+ (RXON_FLG_TGJ_NARROW_BAND_MSK |
+ RXON_FLG_RADAR_DETECT_MSK));
+ if (error)
+ IWL_WARNING("check 24G fields %d | %d\n",
+ counter++, error);
+ } else {
+ error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ?
+ 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK);
+ if (error)
+ IWL_WARNING("check 52 fields %d | %d\n",
+ counter++, error);
+ error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK);
+ if (error)
+ IWL_WARNING("check 52 CCK %d | %d\n",
+ counter++, error);
+ }
+ error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1;
+ if (error)
+ IWL_WARNING("check mac addr %d | %d\n", counter++, error);
+
+ /* make sure basic rates 6Mbps and 1Mbps are supported */
+ error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) &&
+ ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0));
+ if (error)
+ IWL_WARNING("check basic rate %d | %d\n", counter++, error);
+
+ error |= (le16_to_cpu(rxon->assoc_id) > 2007);
+ if (error)
+ IWL_WARNING("check assoc id %d | %d\n", counter++, error);
+
+ error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
+ == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK));
+ if (error)
+ IWL_WARNING("check CCK and short slot %d | %d\n",
+ counter++, error);
+
+ error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
+ == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK));
+ if (error)
+ IWL_WARNING("check CCK & auto detect %d | %d\n",
+ counter++, error);
+
+ error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
+ RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK);
+ if (error)
+ IWL_WARNING("check TGG and auto detect %d | %d\n",
+ counter++, error);
+
+ if (error)
+ IWL_WARNING("Tuning to channel %d\n",
+ le16_to_cpu(rxon->channel));
+
+ if (error) {
+ IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n");
+ return -1;
+ }
+ return 0;
+}
+
+/**
+ * iwl4965_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
+ * @priv: staging_rxon is compared to active_rxon
+ *
+ * If the RXON structure is changing enough to require a new tune,
+ * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
+ * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
+ */
+static int iwl4965_full_rxon_required(struct iwl_priv *priv)
+{
+
+ /* These items are only settable from the full RXON command */
+ if (!(iwl_is_associated(priv)) ||
+ compare_ether_addr(priv->staging_rxon.bssid_addr,
+ priv->active_rxon.bssid_addr) ||
+ compare_ether_addr(priv->staging_rxon.node_addr,
+ priv->active_rxon.node_addr) ||
+ compare_ether_addr(priv->staging_rxon.wlap_bssid_addr,
+ priv->active_rxon.wlap_bssid_addr) ||
+ (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) ||
+ (priv->staging_rxon.channel != priv->active_rxon.channel) ||
+ (priv->staging_rxon.air_propagation !=
+ priv->active_rxon.air_propagation) ||
+ (priv->staging_rxon.ofdm_ht_single_stream_basic_rates !=
+ priv->active_rxon.ofdm_ht_single_stream_basic_rates) ||
+ (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates !=
+ priv->active_rxon.ofdm_ht_dual_stream_basic_rates) ||
+ (priv->staging_rxon.rx_chain != priv->active_rxon.rx_chain) ||
+ (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id))
+ return 1;
+
+ /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
+ * be updated with the RXON_ASSOC command -- however only some
+ * flag transitions are allowed using RXON_ASSOC */
+
+ /* Check if we are not switching bands */
+ if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) !=
+ (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK))
+ return 1;
+
+ /* Check if we are switching association toggle */
+ if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) !=
+ (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK))
+ return 1;
+
+ return 0;
+}
+
+/**
+ * iwl4965_commit_rxon - commit staging_rxon to hardware
+ *
+ * The RXON command in staging_rxon is committed to the hardware and
+ * the active_rxon structure is updated with the new data. This
+ * function correctly transitions out of the RXON_ASSOC_MSK state if
+ * a HW tune is required based on the RXON structure changes.
+ */
+static int iwl4965_commit_rxon(struct iwl_priv *priv)
+{
+ /* cast away the const for active_rxon in this function */
+ struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon;
+ DECLARE_MAC_BUF(mac);
+ int ret;
+ bool new_assoc =
+ !!(priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK);
+
+ if (!iwl_is_alive(priv))
+ return -EBUSY;
+
+ /* always get timestamp with Rx frame */
+ priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK;
+ /* allow CTS-to-self if possible. this is relevant only for
+ * 5000, but will not damage 4965 */
+ priv->staging_rxon.flags |= RXON_FLG_SELF_CTS_EN;
+
+ ret = iwl4965_check_rxon_cmd(&priv->staging_rxon);
+ if (ret) {
+ IWL_ERROR("Invalid RXON configuration. Not committing.\n");
+ return -EINVAL;
+ }
+
+ /* If we don't need to send a full RXON, we can use
+ * iwl4965_rxon_assoc_cmd which is used to reconfigure filter
+ * and other flags for the current radio configuration. */
+ if (!iwl4965_full_rxon_required(priv)) {
+ ret = iwl_send_rxon_assoc(priv);
+ if (ret) {
+ IWL_ERROR("Error setting RXON_ASSOC (%d)\n", ret);
+ return ret;
+ }
+
+ memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
+ return 0;
+ }
+
+ /* station table will be cleared */
+ priv->assoc_station_added = 0;
+
+ /* If we are currently associated and the new config requires
+ * an RXON_ASSOC and the new config wants the associated mask enabled,
+ * we must clear the associated from the active configuration
+ * before we apply the new config */
+ if (iwl_is_associated(priv) && new_assoc) {
+ IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
+ active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+
+ ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
+ sizeof(struct iwl_rxon_cmd),
+ &priv->active_rxon);
+
+ /* If the mask clearing failed then we set
+ * active_rxon back to what it was previously */
+ if (ret) {
+ active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
+ IWL_ERROR("Error clearing ASSOC_MSK (%d)\n", ret);
+ return ret;
+ }
+ }
+
+ IWL_DEBUG_INFO("Sending RXON\n"
+ "* with%s RXON_FILTER_ASSOC_MSK\n"
+ "* channel = %d\n"
+ "* bssid = %s\n",
+ (new_assoc ? "" : "out"),
+ le16_to_cpu(priv->staging_rxon.channel),
+ print_mac(mac, priv->staging_rxon.bssid_addr));
+
+ iwl4965_set_rxon_hwcrypto(priv, !priv->hw_params.sw_crypto);
+
+ /* Apply the new configuration
+ * RXON unassoc clears the station table in uCode, send it before
+ * we add the bcast station. If assoc bit is set, we will send RXON
+ * after having added the bcast and bssid station.
+ */
+ if (!new_assoc) {
+ ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
+ sizeof(struct iwl_rxon_cmd), &priv->staging_rxon);
+ if (ret) {
+ IWL_ERROR("Error setting new RXON (%d)\n", ret);
+ return ret;
+ }
+ memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
+ }
+
+ iwl_clear_stations_table(priv);
+
+ if (!priv->error_recovering)
+ priv->start_calib = 0;
+
+ /* Add the broadcast address so we can send broadcast frames */
+ if (iwl_rxon_add_station(priv, iwl_bcast_addr, 0) ==
+ IWL_INVALID_STATION) {
+ IWL_ERROR("Error adding BROADCAST address for transmit.\n");
+ return -EIO;
+ }
+
+ /* If we have set the ASSOC_MSK and we are in BSS mode then
+ * add the IWL_AP_ID to the station rate table */
+ if (new_assoc) {
+ if (priv->iw_mode == IEEE80211_IF_TYPE_STA) {
+ ret = iwl_rxon_add_station(priv,
+ priv->active_rxon.bssid_addr, 1);
+ if (ret == IWL_INVALID_STATION) {
+ IWL_ERROR("Error adding AP address for TX.\n");
+ return -EIO;
+ }
+ priv->assoc_station_added = 1;
+ if (priv->default_wep_key &&
+ iwl_send_static_wepkey_cmd(priv, 0))
+ IWL_ERROR("Could not send WEP static key.\n");
+ }
+
+ /* Apply the new configuration
+ * RXON assoc doesn't clear the station table in uCode,
+ */
+ ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
+ sizeof(struct iwl_rxon_cmd), &priv->staging_rxon);
+ if (ret) {
+ IWL_ERROR("Error setting new RXON (%d)\n", ret);
+ return ret;
+ }
+ memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
+ }
+
+ iwl_init_sensitivity(priv);
+
+ /* If we issue a new RXON command which required a tune then we must
+ * send a new TXPOWER command or we won't be able to Tx any frames */
+ ret = iwl_set_tx_power(priv, priv->tx_power_user_lmt, true);
+ if (ret) {
+ IWL_ERROR("Error sending TX power (%d)\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+void iwl4965_update_chain_flags(struct iwl_priv *priv)
+{
+
+ iwl_set_rxon_chain(priv);
+ iwl4965_commit_rxon(priv);
+}
+
+static int iwl4965_send_bt_config(struct iwl_priv *priv)
+{
+ struct iwl4965_bt_cmd bt_cmd = {
+ .flags = 3,
+ .lead_time = 0xAA,
+ .max_kill = 1,
+ .kill_ack_mask = 0,
+ .kill_cts_mask = 0,
+ };
+
+ return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG,
+ sizeof(struct iwl4965_bt_cmd), &bt_cmd);
+}
+
+static void iwl_clear_free_frames(struct iwl_priv *priv)
+{
+ struct list_head *element;
+
+ IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
+ priv->frames_count);
+
+ while (!list_empty(&priv->free_frames)) {
+ element = priv->free_frames.next;
+ list_del(element);
+ kfree(list_entry(element, struct iwl_frame, list));
+ priv->frames_count--;
+ }
+
+ if (priv->frames_count) {
+ IWL_WARNING("%d frames still in use. Did we lose one?\n",
+ priv->frames_count);
+ priv->frames_count = 0;
+ }
+}
+
+static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv)
+{
+ struct iwl_frame *frame;
+ struct list_head *element;
+ if (list_empty(&priv->free_frames)) {
+ frame = kzalloc(sizeof(*frame), GFP_KERNEL);
+ if (!frame) {
+ IWL_ERROR("Could not allocate frame!\n");
+ return NULL;
+ }
+
+ priv->frames_count++;
+ return frame;
+ }
+
+ element = priv->free_frames.next;
+ list_del(element);
+ return list_entry(element, struct iwl_frame, list);
+}
+
+static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame)
+{
+ memset(frame, 0, sizeof(*frame));
+ list_add(&frame->list, &priv->free_frames);
+}
+
+static unsigned int iwl_fill_beacon_frame(struct iwl_priv *priv,
+ struct ieee80211_hdr *hdr,
+ const u8 *dest, int left)
+{
+ if (!iwl_is_associated(priv) || !priv->ibss_beacon ||
+ ((priv->iw_mode != IEEE80211_IF_TYPE_IBSS) &&
+ (priv->iw_mode != IEEE80211_IF_TYPE_AP)))
+ return 0;
+
+ if (priv->ibss_beacon->len > left)
+ return 0;
+
+ memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
+
+ return priv->ibss_beacon->len;
+}
+
+static u8 iwl4965_rate_get_lowest_plcp(struct iwl_priv *priv)
+{
+ int i;
+ int rate_mask;
+
+ /* Set rate mask*/
+ if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
+ rate_mask = priv->active_rate_basic & 0xF;
+ else
+ rate_mask = priv->active_rate_basic & 0xFF0;
+
+ /* Find lowest valid rate */
+ for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
+ i = iwl_rates[i].next_ieee) {
+ if (rate_mask & (1 << i))
+ return iwl_rates[i].plcp;
+ }
+
+ /* No valid rate was found. Assign the lowest one */
+ if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
+ return IWL_RATE_1M_PLCP;
+ else
+ return IWL_RATE_6M_PLCP;
+}
+
+unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
+ struct iwl_frame *frame, u8 rate)
+{
+ struct iwl_tx_beacon_cmd *tx_beacon_cmd;
+ unsigned int frame_size;
+
+ tx_beacon_cmd = &frame->u.beacon;
+ memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));
+
+ tx_beacon_cmd->tx.sta_id = priv->hw_params.bcast_sta_id;
+ tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
+
+ frame_size = iwl_fill_beacon_frame(priv, tx_beacon_cmd->frame,
+ iwl_bcast_addr,
+ sizeof(frame->u) - sizeof(*tx_beacon_cmd));
+
+ BUG_ON(frame_size > MAX_MPDU_SIZE);
+ tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
+
+ if ((rate == IWL_RATE_1M_PLCP) || (rate >= IWL_RATE_2M_PLCP))
+ tx_beacon_cmd->tx.rate_n_flags =
+ iwl_hw_set_rate_n_flags(rate, RATE_MCS_CCK_MSK);
+ else
+ tx_beacon_cmd->tx.rate_n_flags =
+ iwl_hw_set_rate_n_flags(rate, 0);
+
+ tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK |
+ TX_CMD_FLG_TSF_MSK |
+ TX_CMD_FLG_STA_RATE_MSK;
+
+ return sizeof(*tx_beacon_cmd) + frame_size;
+}
+static int iwl4965_send_beacon_cmd(struct iwl_priv *priv)
+{
+ struct iwl_frame *frame;
+ unsigned int frame_size;
+ int rc;
+ u8 rate;
+
+ frame = iwl_get_free_frame(priv);
+
+ if (!frame) {
+ IWL_ERROR("Could not obtain free frame buffer for beacon "
+ "command.\n");
+ return -ENOMEM;
+ }
+
+ rate = iwl4965_rate_get_lowest_plcp(priv);
+
+ frame_size = iwl4965_hw_get_beacon_cmd(priv, frame, rate);
+
+ rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
+ &frame->u.cmd[0]);
+
+ iwl_free_frame(priv, frame);
+
+ return rc;
+}
+
+/******************************************************************************
+ *
+ * Misc. internal state and helper functions
+ *
+ ******************************************************************************/
+
+static void iwl4965_ht_conf(struct iwl_priv *priv,
+ struct ieee80211_bss_conf *bss_conf)
+{
+ struct ieee80211_ht_info *ht_conf = bss_conf->ht_conf;
+ struct ieee80211_ht_bss_info *ht_bss_conf = bss_conf->ht_bss_conf;
+ struct iwl_ht_info *iwl_conf = &priv->current_ht_config;
+
+ IWL_DEBUG_MAC80211("enter: \n");
+
+ iwl_conf->is_ht = bss_conf->assoc_ht;
+
+ if (!iwl_conf->is_ht)
+ return;
+
+ priv->ps_mode = (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
+
+ if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20)
+ iwl_conf->sgf |= HT_SHORT_GI_20MHZ;
+ if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40)
+ iwl_conf->sgf |= HT_SHORT_GI_40MHZ;
+
+ iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD);
+ iwl_conf->max_amsdu_size =
+ !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU);
+
+ iwl_conf->supported_chan_width =
+ !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH);
+ iwl_conf->extension_chan_offset =
+ ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_SEC_OFFSET;
+ /* If no above or below channel supplied disable FAT channel */
+ if (iwl_conf->extension_chan_offset != IEEE80211_HT_IE_CHA_SEC_ABOVE &&
+ iwl_conf->extension_chan_offset != IEEE80211_HT_IE_CHA_SEC_BELOW) {
+ iwl_conf->extension_chan_offset = IEEE80211_HT_IE_CHA_SEC_NONE;
+ iwl_conf->supported_chan_width = 0;
+ }
+
+ iwl_conf->tx_mimo_ps_mode =
+ (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
+ memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16);
+
+ iwl_conf->control_channel = ht_bss_conf->primary_channel;
+ iwl_conf->tx_chan_width =
+ !!(ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_WIDTH);
+ iwl_conf->ht_protection =
+ ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_HT_PROTECTION;
+ iwl_conf->non_GF_STA_present =
+ !!(ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_NON_GF_STA_PRSNT);
+
+ IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf->control_channel);
+ IWL_DEBUG_MAC80211("leave\n");
+}
+
+/*
+ * QoS support
+*/
+static void iwl_activate_qos(struct iwl_priv *priv, u8 force)
+{
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ if (!priv->qos_data.qos_enable)
+ return;
+
+ priv->qos_data.def_qos_parm.qos_flags = 0;
+
+ if (priv->qos_data.qos_cap.q_AP.queue_request &&
+ !priv->qos_data.qos_cap.q_AP.txop_request)
+ priv->qos_data.def_qos_parm.qos_flags |=
+ QOS_PARAM_FLG_TXOP_TYPE_MSK;
+ if (priv->qos_data.qos_active)
+ priv->qos_data.def_qos_parm.qos_flags |=
+ QOS_PARAM_FLG_UPDATE_EDCA_MSK;
+
+ if (priv->current_ht_config.is_ht)
+ priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
+
+ if (force || iwl_is_associated(priv)) {
+ IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n",
+ priv->qos_data.qos_active,
+ priv->qos_data.def_qos_parm.qos_flags);
+
+ iwl_send_cmd_pdu_async(priv, REPLY_QOS_PARAM,
+ sizeof(struct iwl_qosparam_cmd),
+ &priv->qos_data.def_qos_parm, NULL);
+ }
+}
+
+#define MAX_UCODE_BEACON_INTERVAL 4096
+
+static __le16 iwl4965_adjust_beacon_interval(u16 beacon_val)
+{
+ u16 new_val = 0;
+ u16 beacon_factor = 0;
+
+ beacon_factor =
+ (beacon_val + MAX_UCODE_BEACON_INTERVAL)
+ / MAX_UCODE_BEACON_INTERVAL;
+ new_val = beacon_val / beacon_factor;
+
+ return cpu_to_le16(new_val);
+}
+
+static void iwl4965_setup_rxon_timing(struct iwl_priv *priv)
+{
+ u64 interval_tm_unit;
+ u64 tsf, result;
+ unsigned long flags;
+ struct ieee80211_conf *conf = NULL;
+ u16 beacon_int = 0;
+
+ conf = ieee80211_get_hw_conf(priv->hw);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->rxon_timing.timestamp.dw[1] = cpu_to_le32(priv->timestamp >> 32);
+ priv->rxon_timing.timestamp.dw[0] =
+ cpu_to_le32(priv->timestamp & 0xFFFFFFFF);
+
+ priv->rxon_timing.listen_interval = cpu_to_le16(conf->listen_interval);
+
+ tsf = priv->timestamp;
+
+ beacon_int = priv->beacon_int;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_STA) {
+ if (beacon_int == 0) {
+ priv->rxon_timing.beacon_interval = cpu_to_le16(100);
+ priv->rxon_timing.beacon_init_val = cpu_to_le32(102400);
+ } else {
+ priv->rxon_timing.beacon_interval =
+ cpu_to_le16(beacon_int);
+ priv->rxon_timing.beacon_interval =
+ iwl4965_adjust_beacon_interval(
+ le16_to_cpu(priv->rxon_timing.beacon_interval));
+ }
+
+ priv->rxon_timing.atim_window = 0;
+ } else {
+ priv->rxon_timing.beacon_interval =
+ iwl4965_adjust_beacon_interval(conf->beacon_int);
+ /* TODO: we need to get atim_window from upper stack
+ * for now we set to 0 */
+ priv->rxon_timing.atim_window = 0;
+ }
+
+ interval_tm_unit =
+ (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024);
+ result = do_div(tsf, interval_tm_unit);
+ priv->rxon_timing.beacon_init_val =
+ cpu_to_le32((u32) ((u64) interval_tm_unit - result));
+
+ IWL_DEBUG_ASSOC
+ ("beacon interval %d beacon timer %d beacon tim %d\n",
+ le16_to_cpu(priv->rxon_timing.beacon_interval),
+ le32_to_cpu(priv->rxon_timing.beacon_init_val),
+ le16_to_cpu(priv->rxon_timing.atim_window));
+}
+
+static void iwl_set_flags_for_band(struct iwl_priv *priv,
+ enum ieee80211_band band)
+{
+ if (band == IEEE80211_BAND_5GHZ) {
+ priv->staging_rxon.flags &=
+ ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
+ | RXON_FLG_CCK_MSK);
+ priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
+ } else {
+ /* Copied from iwl4965_post_associate() */
+ if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
+ priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
+ else
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+
+ priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
+ priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK;
+ priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK;
+ }
+}
+
+/*
+ * initialize rxon structure with default values from eeprom
+ */
+static void iwl4965_connection_init_rx_config(struct iwl_priv *priv)
+{
+ const struct iwl_channel_info *ch_info;
+
+ memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon));
+
+ switch (priv->iw_mode) {
+ case IEEE80211_IF_TYPE_AP:
+ priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP;
+ break;
+
+ case IEEE80211_IF_TYPE_STA:
+ priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS;
+ priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
+ break;
+
+ case IEEE80211_IF_TYPE_IBSS:
+ priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS;
+ priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
+ priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
+ RXON_FILTER_ACCEPT_GRP_MSK;
+ break;
+
+ case IEEE80211_IF_TYPE_MNTR:
+ priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER;
+ priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK |
+ RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK;
+ break;
+ default:
+ IWL_ERROR("Unsupported interface type %d\n", priv->iw_mode);
+ break;
+ }
+
+#if 0
+ /* TODO: Figure out when short_preamble would be set and cache from
+ * that */
+ if (!hw_to_local(priv->hw)->short_preamble)
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
+ else
+ priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
+#endif
+
+ ch_info = iwl_get_channel_info(priv, priv->band,
+ le16_to_cpu(priv->active_rxon.channel));
+
+ if (!ch_info)
+ ch_info = &priv->channel_info[0];
+
+ /*
+ * in some case A channels are all non IBSS
+ * in this case force B/G channel
+ */
+ if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) &&
+ !(is_channel_ibss(ch_info)))
+ ch_info = &priv->channel_info[0];
+
+ priv->staging_rxon.channel = cpu_to_le16(ch_info->channel);
+ priv->band = ch_info->band;
+
+ iwl_set_flags_for_band(priv, priv->band);
+
+ priv->staging_rxon.ofdm_basic_rates =
+ (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
+ priv->staging_rxon.cck_basic_rates =
+ (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
+
+ priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK |
+ RXON_FLG_CHANNEL_MODE_PURE_40_MSK);
+ memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
+ memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN);
+ priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff;
+ priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff;
+ iwl_set_rxon_chain(priv);
+}
+
+static int iwl4965_set_mode(struct iwl_priv *priv, int mode)
+{
+ priv->iw_mode = mode;
+
+ iwl4965_connection_init_rx_config(priv);
+ memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
+
+ iwl_clear_stations_table(priv);
+
+ /* dont commit rxon if rf-kill is on*/
+ if (!iwl_is_ready_rf(priv))
+ return -EAGAIN;
+
+ cancel_delayed_work(&priv->scan_check);
+ if (iwl_scan_cancel_timeout(priv, 100)) {
+ IWL_WARNING("Aborted scan still in progress after 100ms\n");
+ IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
+ return -EAGAIN;
+ }
+
+ iwl4965_commit_rxon(priv);
+
+ return 0;
+}
+
+static void iwl4965_set_rate(struct iwl_priv *priv)
+{
+ const struct ieee80211_supported_band *hw = NULL;
+ struct ieee80211_rate *rate;
+ int i;
+
+ hw = iwl_get_hw_mode(priv, priv->band);
+ if (!hw) {
+ IWL_ERROR("Failed to set rate: unable to get hw mode\n");
+ return;
+ }
+
+ priv->active_rate = 0;
+ priv->active_rate_basic = 0;
+
+ for (i = 0; i < hw->n_bitrates; i++) {
+ rate = &(hw->bitrates[i]);
+ if (rate->hw_value < IWL_RATE_COUNT)
+ priv->active_rate |= (1 << rate->hw_value);
+ }
+
+ IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
+ priv->active_rate, priv->active_rate_basic);
+
+ /*
+ * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
+ * otherwise set it to the default of all CCK rates and 6, 12, 24 for
+ * OFDM
+ */
+ if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK)
+ priv->staging_rxon.cck_basic_rates =
+ ((priv->active_rate_basic &
+ IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF;
+ else
+ priv->staging_rxon.cck_basic_rates =
+ (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
+
+ if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK)
+ priv->staging_rxon.ofdm_basic_rates =
+ ((priv->active_rate_basic &
+ (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >>
+ IWL_FIRST_OFDM_RATE) & 0xFF;
+ else
+ priv->staging_rxon.ofdm_basic_rates =
+ (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
+}
+
+#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
+
+#include "iwl-spectrum.h"
+
+#define BEACON_TIME_MASK_LOW 0x00FFFFFF
+#define BEACON_TIME_MASK_HIGH 0xFF000000
+#define TIME_UNIT 1024
+
+/*
+ * extended beacon time format
+ * time in usec will be changed into a 32-bit value in 8:24 format
+ * the high 1 byte is the beacon counts
+ * the lower 3 bytes is the time in usec within one beacon interval
+ */
+
+static u32 iwl4965_usecs_to_beacons(u32 usec, u32 beacon_interval)
+{
+ u32 quot;
+ u32 rem;
+ u32 interval = beacon_interval * 1024;
+
+ if (!interval || !usec)
+ return 0;
+
+ quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24);
+ rem = (usec % interval) & BEACON_TIME_MASK_LOW;
+
+ return (quot << 24) + rem;
+}
+
+/* base is usually what we get from ucode with each received frame,
+ * the same as HW timer counter counting down
+ */
+
+static __le32 iwl4965_add_beacon_time(u32 base, u32 addon, u32 beacon_interval)
+{
+ u32 base_low = base & BEACON_TIME_MASK_LOW;
+ u32 addon_low = addon & BEACON_TIME_MASK_LOW;
+ u32 interval = beacon_interval * TIME_UNIT;
+ u32 res = (base & BEACON_TIME_MASK_HIGH) +
+ (addon & BEACON_TIME_MASK_HIGH);
+
+ if (base_low > addon_low)
+ res += base_low - addon_low;
+ else if (base_low < addon_low) {
+ res += interval + base_low - addon_low;
+ res += (1 << 24);
+ } else
+ res += (1 << 24);
+
+ return cpu_to_le32(res);
+}
+
+static int iwl4965_get_measurement(struct iwl_priv *priv,
+ struct ieee80211_measurement_params *params,
+ u8 type)
+{
+ struct iwl4965_spectrum_cmd spectrum;
+ struct iwl_rx_packet *res;
+ struct iwl_host_cmd cmd = {
+ .id = REPLY_SPECTRUM_MEASUREMENT_CMD,
+ .data = (void *)&spectrum,
+ .meta.flags = CMD_WANT_SKB,
+ };
+ u32 add_time = le64_to_cpu(params->start_time);
+ int rc;
+ int spectrum_resp_status;
+ int duration = le16_to_cpu(params->duration);
+
+ if (iwl_is_associated(priv))
+ add_time =
+ iwl4965_usecs_to_beacons(
+ le64_to_cpu(params->start_time) - priv->last_tsf,
+ le16_to_cpu(priv->rxon_timing.beacon_interval));
+
+ memset(&spectrum, 0, sizeof(spectrum));
+
+ spectrum.channel_count = cpu_to_le16(1);
+ spectrum.flags =
+ RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
+ spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
+ cmd.len = sizeof(spectrum);
+ spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len));
+
+ if (iwl_is_associated(priv))
+ spectrum.start_time =
+ iwl4965_add_beacon_time(priv->last_beacon_time,
+ add_time,
+ le16_to_cpu(priv->rxon_timing.beacon_interval));
+ else
+ spectrum.start_time = 0;
+
+ spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT);
+ spectrum.channels[0].channel = params->channel;
+ spectrum.channels[0].type = type;
+ if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)
+ spectrum.flags |= RXON_FLG_BAND_24G_MSK |
+ RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK;
+
+ rc = iwl_send_cmd_sync(priv, &cmd);
+ if (rc)
+ return rc;
+
+ res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
+ if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+ IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
+ rc = -EIO;
+ }
+
+ spectrum_resp_status = le16_to_cpu(res->u.spectrum.status);
+ switch (spectrum_resp_status) {
+ case 0: /* Command will be handled */
+ if (res->u.spectrum.id != 0xff) {
+ IWL_DEBUG_INFO
+ ("Replaced existing measurement: %d\n",
+ res->u.spectrum.id);
+ priv->measurement_status &= ~MEASUREMENT_READY;
+ }
+ priv->measurement_status |= MEASUREMENT_ACTIVE;
+ rc = 0;
+ break;
+
+ case 1: /* Command will not be handled */
+ rc = -EAGAIN;
+ break;
+ }
+
+ dev_kfree_skb_any(cmd.meta.u.skb);
+
+ return rc;
+}
+#endif
+
+/******************************************************************************
+ *
+ * Generic RX handler implementations
+ *
+ ******************************************************************************/
+static void iwl_rx_reply_alive(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb)
+{
+ struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
+ struct iwl_alive_resp *palive;
+ struct delayed_work *pwork;
+
+ palive = &pkt->u.alive_frame;
+
+ IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
+ "0x%01X 0x%01X\n",
+ palive->is_valid, palive->ver_type,
+ palive->ver_subtype);
+
+ if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
+ IWL_DEBUG_INFO("Initialization Alive received.\n");
+ memcpy(&priv->card_alive_init,
+ &pkt->u.alive_frame,
+ sizeof(struct iwl_init_alive_resp));
+ pwork = &priv->init_alive_start;
+ } else {
+ IWL_DEBUG_INFO("Runtime Alive received.\n");
+ memcpy(&priv->card_alive, &pkt->u.alive_frame,
+ sizeof(struct iwl_alive_resp));
+ pwork = &priv->alive_start;
+ }
+
+ /* We delay the ALIVE response by 5ms to
+ * give the HW RF Kill time to activate... */
+ if (palive->is_valid == UCODE_VALID_OK)
+ queue_delayed_work(priv->workqueue, pwork,
+ msecs_to_jiffies(5));
+ else
+ IWL_WARNING("uCode did not respond OK.\n");
+}
+
+static void iwl4965_rx_reply_error(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb)
+{
+ struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
+
+ IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
+ "seq 0x%04X ser 0x%08X\n",
+ le32_to_cpu(pkt->u.err_resp.error_type),
+ get_cmd_string(pkt->u.err_resp.cmd_id),
+ pkt->u.err_resp.cmd_id,
+ le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
+ le32_to_cpu(pkt->u.err_resp.error_info));
+}
+
+#define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
+
+static void iwl4965_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
+{
+ struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
+ struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon;
+ struct iwl4965_csa_notification *csa = &(pkt->u.csa_notif);
+ IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
+ le16_to_cpu(csa->channel), le32_to_cpu(csa->status));
+ rxon->channel = csa->channel;
+ priv->staging_rxon.channel = csa->channel;
+}
+
+static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb)
+{
+#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
+ struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
+ struct iwl4965_spectrum_notification *report = &(pkt->u.spectrum_notif);
+
+ if (!report->state) {
+ IWL_DEBUG(IWL_DL_11H,
+ "Spectrum Measure Notification: Start\n");
+ return;
+ }
+
+ memcpy(&priv->measure_report, report, sizeof(*report));
+ priv->measurement_status |= MEASUREMENT_READY;
+#endif
+}
+
+static void iwl4965_rx_pm_sleep_notif(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb)
+{
+#ifdef CONFIG_IWLWIFI_DEBUG
+ struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
+ struct iwl4965_sleep_notification *sleep = &(pkt->u.sleep_notif);
+ IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
+ sleep->pm_sleep_mode, sleep->pm_wakeup_src);
+#endif
+}
+
+static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb)
+{
+ struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
+ IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
+ "notification for %s:\n",
+ le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
+ iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len));
+}
+
+static void iwl4965_bg_beacon_update(struct work_struct *work)
+{
+ struct iwl_priv *priv =
+ container_of(work, struct iwl_priv, beacon_update);
+ struct sk_buff *beacon;
+
+ /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
+ beacon = ieee80211_beacon_get(priv->hw, priv->vif);
+
+ if (!beacon) {
+ IWL_ERROR("update beacon failed\n");
+ return;
+ }
+
+ mutex_lock(&priv->mutex);
+ /* new beacon skb is allocated every time; dispose previous.*/
+ if (priv->ibss_beacon)
+ dev_kfree_skb(priv->ibss_beacon);
+
+ priv->ibss_beacon = beacon;
+ mutex_unlock(&priv->mutex);
+
+ iwl4965_send_beacon_cmd(priv);
+}
+
+/**
+ * iwl4965_bg_statistics_periodic - Timer callback to queue statistics
+ *
+ * This callback is provided in order to send a statistics request.
+ *
+ * This timer function is continually reset to execute within
+ * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
+ * was received. We need to ensure we receive the statistics in order
+ * to update the temperature used for calibrating the TXPOWER.
+ */
+static void iwl4965_bg_statistics_periodic(unsigned long data)
+{
+ struct iwl_priv *priv = (struct iwl_priv *)data;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ iwl_send_statistics_request(priv, CMD_ASYNC);
+}
+
+static void iwl4965_rx_beacon_notif(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb)
+{
+#ifdef CONFIG_IWLWIFI_DEBUG
+ struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
+ struct iwl4965_beacon_notif *beacon = &(pkt->u.beacon_status);
+ u8 rate = iwl_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags);
+
+ IWL_DEBUG_RX("beacon status %x retries %d iss %d "
+ "tsf %d %d rate %d\n",
+ le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK,
+ beacon->beacon_notify_hdr.failure_frame,
+ le32_to_cpu(beacon->ibss_mgr_status),
+ le32_to_cpu(beacon->high_tsf),
+ le32_to_cpu(beacon->low_tsf), rate);
+#endif
+
+ if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
+ (!test_bit(STATUS_EXIT_PENDING, &priv->status)))
+ queue_work(priv->workqueue, &priv->beacon_update);
+}
+
+/* Handle notification from uCode that card's power state is changing
+ * due to software, hardware, or critical temperature RFKILL */
+static void iwl4965_rx_card_state_notif(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb)
+{
+ struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
+ u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
+ unsigned long status = priv->status;
+
+ IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
+ (flags & HW_CARD_DISABLED) ? "Kill" : "On",
+ (flags & SW_CARD_DISABLED) ? "Kill" : "On");
+
+ if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED |
+ RF_CARD_DISABLED)) {
+
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
+ CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+
+ if (!iwl_grab_nic_access(priv)) {
+ iwl_write_direct32(
+ priv, HBUS_TARG_MBX_C,
+ HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
+
+ iwl_release_nic_access(priv);
+ }
+
+ if (!(flags & RXON_CARD_DISABLED)) {
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
+ CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+ if (!iwl_grab_nic_access(priv)) {
+ iwl_write_direct32(
+ priv, HBUS_TARG_MBX_C,
+ HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
+
+ iwl_release_nic_access(priv);
+ }
+ }
+
+ if (flags & RF_CARD_DISABLED) {
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
+ CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
+ iwl_read32(priv, CSR_UCODE_DRV_GP1);
+ if (!iwl_grab_nic_access(priv))
+ iwl_release_nic_access(priv);
+ }
+ }
+
+ if (flags & HW_CARD_DISABLED)
+ set_bit(STATUS_RF_KILL_HW, &priv->status);
+ else
+ clear_bit(STATUS_RF_KILL_HW, &priv->status);
+
+
+ if (flags & SW_CARD_DISABLED)
+ set_bit(STATUS_RF_KILL_SW, &priv->status);
+ else
+ clear_bit(STATUS_RF_KILL_SW, &priv->status);
+
+ if (!(flags & RXON_CARD_DISABLED))
+ iwl_scan_cancel(priv);
+
+ if ((test_bit(STATUS_RF_KILL_HW, &status) !=
+ test_bit(STATUS_RF_KILL_HW, &priv->status)) ||
+ (test_bit(STATUS_RF_KILL_SW, &status) !=
+ test_bit(STATUS_RF_KILL_SW, &priv->status)))
+ queue_work(priv->workqueue, &priv->rf_kill);
+ else
+ wake_up_interruptible(&priv->wait_command_queue);
+}
+
+int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src)
+{
+ int ret;
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ ret = iwl_grab_nic_access(priv);
+ if (ret)
+ goto err;
+
+ if (src == IWL_PWR_SRC_VAUX) {
+ u32 val;
+ ret = pci_read_config_dword(priv->pci_dev, PCI_POWER_SOURCE,
+ &val);
+
+ if (val & PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT)
+ iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
+ APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
+ ~APMG_PS_CTRL_MSK_PWR_SRC);
+ } else {
+ iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
+ APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
+ ~APMG_PS_CTRL_MSK_PWR_SRC);
+ }
+
+ iwl_release_nic_access(priv);
+err:
+ spin_unlock_irqrestore(&priv->lock, flags);
+ return ret;
+}
+
+/**
+ * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
+ *
+ * Setup the RX handlers for each of the reply types sent from the uCode
+ * to the host.
+ *
+ * This function chains into the hardware specific files for them to setup
+ * any hardware specific handlers as well.
+ */
+static void iwl_setup_rx_handlers(struct iwl_priv *priv)
+{
+ priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive;
+ priv->rx_handlers[REPLY_ERROR] = iwl4965_rx_reply_error;
+ priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl4965_rx_csa;
+ priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] =
+ iwl4965_rx_spectrum_measure_notif;
+ priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl4965_rx_pm_sleep_notif;
+ priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
+ iwl4965_rx_pm_debug_statistics_notif;
+ priv->rx_handlers[BEACON_NOTIFICATION] = iwl4965_rx_beacon_notif;
+
+ /*
+ * The same handler is used for both the REPLY to a discrete
+ * statistics request from the host as well as for the periodic
+ * statistics notifications (after received beacons) from the uCode.
+ */
+ priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl_rx_statistics;
+ priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl_rx_statistics;
+
+ iwl_setup_rx_scan_handlers(priv);
+
+ /* status change handler */
+ priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl4965_rx_card_state_notif;
+
+ priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] =
+ iwl_rx_missed_beacon_notif;
+ /* Rx handlers */
+ priv->rx_handlers[REPLY_RX_PHY_CMD] = iwl_rx_reply_rx_phy;
+ priv->rx_handlers[REPLY_RX_MPDU_CMD] = iwl_rx_reply_rx;
+ /* block ack */
+ priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl_rx_reply_compressed_ba;
+ /* Set up hardware specific Rx handlers */
+ priv->cfg->ops->lib->rx_handler_setup(priv);
+}
+
+/*
+ * this should be called while priv->lock is locked
+*/
+static void __iwl_rx_replenish(struct iwl_priv *priv)
+{
+ iwl_rx_allocate(priv);
+ iwl_rx_queue_restock(priv);
+}
+
+
+/**
+ * iwl_rx_handle - Main entry function for receiving responses from uCode
+ *
+ * Uses the priv->rx_handlers callback function array to invoke
+ * the appropriate handlers, including command responses,
+ * frame-received notifications, and other notifications.
+ */
+void iwl_rx_handle(struct iwl_priv *priv)
+{
+ struct iwl_rx_mem_buffer *rxb;
+ struct iwl_rx_packet *pkt;
+ struct iwl_rx_queue *rxq = &priv->rxq;
+ u32 r, i;
+ int reclaim;
+ unsigned long flags;
+ u8 fill_rx = 0;
+ u32 count = 8;
+
+ /* uCode's read index (stored in shared DRAM) indicates the last Rx
+ * buffer that the driver may process (last buffer filled by ucode). */
+ r = priv->cfg->ops->lib->shared_mem_rx_idx(priv);
+ i = rxq->read;
+
+ /* Rx interrupt, but nothing sent from uCode */
+ if (i == r)
+ IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d\n", r, i);
+
+ if (iwl_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2))
+ fill_rx = 1;
+
+ while (i != r) {
+ rxb = rxq->queue[i];
+
+ /* If an RXB doesn't have a Rx queue slot associated with it,
+ * then a bug has been introduced in the queue refilling
+ * routines -- catch it here */
+ BUG_ON(rxb == NULL);
+
+ rxq->queue[i] = NULL;
+
+ pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr,
+ priv->hw_params.rx_buf_size,
+ PCI_DMA_FROMDEVICE);
+ pkt = (struct iwl_rx_packet *)rxb->skb->data;
+
+ /* Reclaim a command buffer only if this packet is a response
+ * to a (driver-originated) command.
+ * If the packet (e.g. Rx frame) originated from uCode,
+ * there is no command buffer to reclaim.
+ * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
+ * but apparently a few don't get set; catch them here. */
+ reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
+ (pkt->hdr.cmd != REPLY_RX_PHY_CMD) &&
+ (pkt->hdr.cmd != REPLY_RX) &&
+ (pkt->hdr.cmd != REPLY_COMPRESSED_BA) &&
+ (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
+ (pkt->hdr.cmd != REPLY_TX);
+
+ /* Based on type of command response or notification,
+ * handle those that need handling via function in
+ * rx_handlers table. See iwl4965_setup_rx_handlers() */
+ if (priv->rx_handlers[pkt->hdr.cmd]) {
+ IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d, %s, 0x%02x\n", r,
+ i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
+ priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
+ } else {
+ /* No handling needed */
+ IWL_DEBUG(IWL_DL_RX,
+ "r %d i %d No handler needed for %s, 0x%02x\n",
+ r, i, get_cmd_string(pkt->hdr.cmd),
+ pkt->hdr.cmd);
+ }
+
+ if (reclaim) {
+ /* Invoke any callbacks, transfer the skb to caller, and
+ * fire off the (possibly) blocking iwl_send_cmd()
+ * as we reclaim the driver command queue */
+ if (rxb && rxb->skb)
+ iwl_tx_cmd_complete(priv, rxb);
+ else
+ IWL_WARNING("Claim null rxb?\n");
+ }
+
+ /* For now we just don't re-use anything. We can tweak this
+ * later to try and re-use notification packets and SKBs that
+ * fail to Rx correctly */
+ if (rxb->skb != NULL) {
+ priv->alloc_rxb_skb--;
+ dev_kfree_skb_any(rxb->skb);
+ rxb->skb = NULL;
+ }
+
+ pci_unmap_single(priv->pci_dev, rxb->dma_addr,
+ priv->hw_params.rx_buf_size,
+ PCI_DMA_FROMDEVICE);
+ spin_lock_irqsave(&rxq->lock, flags);
+ list_add_tail(&rxb->list, &priv->rxq.rx_used);
+ spin_unlock_irqrestore(&rxq->lock, flags);
+ i = (i + 1) & RX_QUEUE_MASK;
+ /* If there are a lot of unused frames,
+ * restock the Rx queue so ucode wont assert. */
+ if (fill_rx) {
+ count++;
+ if (count >= 8) {
+ priv->rxq.read = i;
+ __iwl_rx_replenish(priv);
+ count = 0;
+ }
+ }
+ }
+
+ /* Backtrack one entry */
+ priv->rxq.read = i;
+ iwl_rx_queue_restock(priv);
+}
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+static void iwl4965_print_rx_config_cmd(struct iwl_priv *priv)
+{
+ struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
+ DECLARE_MAC_BUF(mac);
+
+ IWL_DEBUG_RADIO("RX CONFIG:\n");
+ iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
+ IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
+ IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
+ IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
+ le32_to_cpu(rxon->filter_flags));
+ IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type);
+ IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
+ rxon->ofdm_basic_rates);
+ IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates);
+ IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
+ print_mac(mac, rxon->node_addr));
+ IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
+ print_mac(mac, rxon->bssid_addr));
+ IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
+}
+#endif
+
+static void iwl4965_enable_interrupts(struct iwl_priv *priv)
+{
+ IWL_DEBUG_ISR("Enabling interrupts\n");
+ set_bit(STATUS_INT_ENABLED, &priv->status);
+ iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK);
+}
+
+/* call this function to flush any scheduled tasklet */
+static inline void iwl_synchronize_irq(struct iwl_priv *priv)
+{
+ /* wait to make sure we flush pedding tasklet*/
+ synchronize_irq(priv->pci_dev->irq);
+ tasklet_kill(&priv->irq_tasklet);
+}
+
+static inline void iwl4965_disable_interrupts(struct iwl_priv *priv)
+{
+ clear_bit(STATUS_INT_ENABLED, &priv->status);
+
+ /* disable interrupts from uCode/NIC to host */
+ iwl_write32(priv, CSR_INT_MASK, 0x00000000);
+
+ /* acknowledge/clear/reset any interrupts still pending
+ * from uCode or flow handler (Rx/Tx DMA) */
+ iwl_write32(priv, CSR_INT, 0xffffffff);
+ iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
+ IWL_DEBUG_ISR("Disabled interrupts\n");
+}
+
+
+/**
+ * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
+ */
+static void iwl4965_irq_handle_error(struct iwl_priv *priv)
+{
+ /* Set the FW error flag -- cleared on iwl4965_down */
+ set_bit(STATUS_FW_ERROR, &priv->status);
+
+ /* Cancel currently queued command. */
+ clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+ if (priv->debug_level & IWL_DL_FW_ERRORS) {
+ iwl_dump_nic_error_log(priv);
+ iwl_dump_nic_event_log(priv);
+ iwl4965_print_rx_config_cmd(priv);
+ }
+#endif
+
+ wake_up_interruptible(&priv->wait_command_queue);
+
+ /* Keep the restart process from trying to send host
+ * commands by clearing the INIT status bit */
+ clear_bit(STATUS_READY, &priv->status);
+
+ if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
+ IWL_DEBUG(IWL_DL_FW_ERRORS,
+ "Restarting adapter due to uCode error.\n");
+
+ if (iwl_is_associated(priv)) {
+ memcpy(&priv->recovery_rxon, &priv->active_rxon,
+ sizeof(priv->recovery_rxon));
+ priv->error_recovering = 1;
+ }
+ if (priv->cfg->mod_params->restart_fw)
+ queue_work(priv->workqueue, &priv->restart);
+ }
+}
+
+static void iwl4965_error_recovery(struct iwl_priv *priv)
+{
+ unsigned long flags;
+
+ memcpy(&priv->staging_rxon, &priv->recovery_rxon,
+ sizeof(priv->staging_rxon));
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl4965_commit_rxon(priv);
+
+ iwl_rxon_add_station(priv, priv->bssid, 1);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id);
+ priv->error_recovering = 0;
+ spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static void iwl4965_irq_tasklet(struct iwl_priv *priv)
+{
+ u32 inta, handled = 0;
+ u32 inta_fh;
+ unsigned long flags;
+#ifdef CONFIG_IWLWIFI_DEBUG
+ u32 inta_mask;
+#endif
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ /* Ack/clear/reset pending uCode interrupts.
+ * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
+ * and will clear only when CSR_FH_INT_STATUS gets cleared. */
+ inta = iwl_read32(priv, CSR_INT);
+ iwl_write32(priv, CSR_INT, inta);
+
+ /* Ack/clear/reset pending flow-handler (DMA) interrupts.
+ * Any new interrupts that happen after this, either while we're
+ * in this tasklet, or later, will show up in next ISR/tasklet. */
+ inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
+ iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+ if (priv->debug_level & IWL_DL_ISR) {
+ /* just for debug */
+ inta_mask = iwl_read32(priv, CSR_INT_MASK);
+ IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
+ inta, inta_mask, inta_fh);
+ }
+#endif
+
+ /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
+ * atomic, make sure that inta covers all the interrupts that
+ * we've discovered, even if FH interrupt came in just after
+ * reading CSR_INT. */
+ if (inta_fh & CSR49_FH_INT_RX_MASK)
+ inta |= CSR_INT_BIT_FH_RX;
+ if (inta_fh & CSR49_FH_INT_TX_MASK)
+ inta |= CSR_INT_BIT_FH_TX;
+
+ /* Now service all interrupt bits discovered above. */
+ if (inta & CSR_INT_BIT_HW_ERR) {
+ IWL_ERROR("Microcode HW error detected. Restarting.\n");
+
+ /* Tell the device to stop sending interrupts */
+ iwl4965_disable_interrupts(priv);
+
+ iwl4965_irq_handle_error(priv);
+
+ handled |= CSR_INT_BIT_HW_ERR;
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ return;
+ }
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+ if (priv->debug_level & (IWL_DL_ISR)) {
+ /* NIC fires this, but we don't use it, redundant with WAKEUP */
+ if (inta & CSR_INT_BIT_SCD)
+ IWL_DEBUG_ISR("Scheduler finished to transmit "
+ "the frame/frames.\n");
+
+ /* Alive notification via Rx interrupt will do the real work */
+ if (inta & CSR_INT_BIT_ALIVE)
+ IWL_DEBUG_ISR("Alive interrupt\n");
+ }
+#endif
+ /* Safely ignore these bits for debug checks below */
+ inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
+
+ /* HW RF KILL switch toggled */
+ if (inta & CSR_INT_BIT_RF_KILL) {
+ int hw_rf_kill = 0;
+ if (!(iwl_read32(priv, CSR_GP_CNTRL) &
+ CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
+ hw_rf_kill = 1;
+
+ IWL_DEBUG(IWL_DL_RF_KILL, "RF_KILL bit toggled to %s.\n",
+ hw_rf_kill ? "disable radio":"enable radio");
+
+ /* driver only loads ucode once setting the interface up.
+ * the driver as well won't allow loading if RFKILL is set
+ * therefore no need to restart the driver from this handler
+ */
+ if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status))
+ clear_bit(STATUS_RF_KILL_HW, &priv->status);
+
+ handled |= CSR_INT_BIT_RF_KILL;
+ }
+
+ /* Chip got too hot and stopped itself */
+ if (inta & CSR_INT_BIT_CT_KILL) {
+ IWL_ERROR("Microcode CT kill error detected.\n");
+ handled |= CSR_INT_BIT_CT_KILL;
+ }
+
+ /* Error detected by uCode */
+ if (inta & CSR_INT_BIT_SW_ERR) {
+ IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
+ inta);
+ iwl4965_irq_handle_error(priv);
+ handled |= CSR_INT_BIT_SW_ERR;
+ }
+
+ /* uCode wakes up after power-down sleep */
+ if (inta & CSR_INT_BIT_WAKEUP) {
+ IWL_DEBUG_ISR("Wakeup interrupt\n");
+ iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
+ iwl_txq_update_write_ptr(priv, &priv->txq[0]);
+ iwl_txq_update_write_ptr(priv, &priv->txq[1]);
+ iwl_txq_update_write_ptr(priv, &priv->txq[2]);
+ iwl_txq_update_write_ptr(priv, &priv->txq[3]);
+ iwl_txq_update_write_ptr(priv, &priv->txq[4]);
+ iwl_txq_update_write_ptr(priv, &priv->txq[5]);
+
+ handled |= CSR_INT_BIT_WAKEUP;
+ }
+
+ /* All uCode command responses, including Tx command responses,
+ * Rx "responses" (frame-received notification), and other
+ * notifications from uCode come through here*/
+ if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
+ iwl_rx_handle(priv);
+ handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
+ }
+
+ if (inta & CSR_INT_BIT_FH_TX) {
+ IWL_DEBUG_ISR("Tx interrupt\n");
+ handled |= CSR_INT_BIT_FH_TX;
+ /* FH finished to write, send event */
+ priv->ucode_write_complete = 1;
+ wake_up_interruptible(&priv->wait_command_queue);
+ }
+
+ if (inta & ~handled)
+ IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
+
+ if (inta & ~CSR_INI_SET_MASK) {
+ IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
+ inta & ~CSR_INI_SET_MASK);
+ IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh);
+ }
+
+ /* Re-enable all interrupts */
+ /* only Re-enable if diabled by irq */
+ if (test_bit(STATUS_INT_ENABLED, &priv->status))
+ iwl4965_enable_interrupts(priv);
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+ if (priv->debug_level & (IWL_DL_ISR)) {
+ inta = iwl_read32(priv, CSR_INT);
+ inta_mask = iwl_read32(priv, CSR_INT_MASK);
+ inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
+ IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
+ "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
+ }
+#endif
+ spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static irqreturn_t iwl4965_isr(int irq, void *data)
+{
+ struct iwl_priv *priv = data;
+ u32 inta, inta_mask;
+ u32 inta_fh;
+ if (!priv)
+ return IRQ_NONE;
+
+ spin_lock(&priv->lock);
+
+ /* Disable (but don't clear!) interrupts here to avoid
+ * back-to-back ISRs and sporadic interrupts from our NIC.
+ * If we have something to service, the tasklet will re-enable ints.
+ * If we *don't* have something, we'll re-enable before leaving here. */
+ inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
+ iwl_write32(priv, CSR_INT_MASK, 0x00000000);
+
+ /* Discover which interrupts are active/pending */
+ inta = iwl_read32(priv, CSR_INT);
+ inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
+
+ /* Ignore interrupt if there's nothing in NIC to service.
+ * This may be due to IRQ shared with another device,
+ * or due to sporadic interrupts thrown from our NIC. */
+ if (!inta && !inta_fh) {
+ IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
+ goto none;
+ }
+
+ if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
+ /* Hardware disappeared. It might have already raised
+ * an interrupt */
+ IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta);
+ goto unplugged;
+ }
+
+ IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
+ inta, inta_mask, inta_fh);
+
+ inta &= ~CSR_INT_BIT_SCD;
+
+ /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
+ if (likely(inta || inta_fh))
+ tasklet_schedule(&priv->irq_tasklet);
+
+ unplugged:
+ spin_unlock(&priv->lock);
+ return IRQ_HANDLED;
+
+ none:
+ /* re-enable interrupts here since we don't have anything to service. */
+ /* only Re-enable if diabled by irq */
+ if (test_bit(STATUS_INT_ENABLED, &priv->status))
+ iwl4965_enable_interrupts(priv);
+ spin_unlock(&priv->lock);
+ return IRQ_NONE;
+}
+
+/******************************************************************************
+ *
+ * uCode download functions
+ *
+ ******************************************************************************/
+
+static void iwl4965_dealloc_ucode_pci(struct iwl_priv *priv)
+{
+ iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code);
+ iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data);
+ iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
+ iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init);
+ iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
+ iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
+}
+
+static void iwl4965_nic_start(struct iwl_priv *priv)
+{
+ /* Remove all resets to allow NIC to operate */
+ iwl_write32(priv, CSR_RESET, 0);
+}
+
+
+/**
+ * iwl4965_read_ucode - Read uCode images from disk file.
+ *
+ * Copy into buffers for card to fetch via bus-mastering
+ */
+static int iwl4965_read_ucode(struct iwl_priv *priv)
+{
+ struct iwl_ucode *ucode;
+ int ret;
+ const struct firmware *ucode_raw;
+ const char *name = priv->cfg->fw_name;
+ u8 *src;
+ size_t len;
+ u32 ver, inst_size, data_size, init_size, init_data_size, boot_size;
+
+ /* Ask kernel firmware_class module to get the boot firmware off disk.
+ * request_firmware() is synchronous, file is in memory on return. */
+ ret = request_firmware(&ucode_raw, name, &priv->pci_dev->dev);
+ if (ret < 0) {
+ IWL_ERROR("%s firmware file req failed: Reason %d\n",
+ name, ret);
+ goto error;
+ }
+
+ IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
+ name, ucode_raw->size);
+
+ /* Make sure that we got at least our header! */
+ if (ucode_raw->size < sizeof(*ucode)) {
+ IWL_ERROR("File size way too small!\n");
+ ret = -EINVAL;
+ goto err_release;
+ }
+
+ /* Data from ucode file: header followed by uCode images */
+ ucode = (void *)ucode_raw->data;
+
+ ver = le32_to_cpu(ucode->ver);
+ inst_size = le32_to_cpu(ucode->inst_size);
+ data_size = le32_to_cpu(ucode->data_size);
+ init_size = le32_to_cpu(ucode->init_size);
+ init_data_size = le32_to_cpu(ucode->init_data_size);
+ boot_size = le32_to_cpu(ucode->boot_size);
+
+ IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver);
+ IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
+ inst_size);
+ IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",
+ data_size);
+ IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n",
+ init_size);
+ IWL_DEBUG_INFO("f/w package hdr init data size = %u\n",
+ init_data_size);
+ IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n",
+ boot_size);
+
+ /* Verify size of file vs. image size info in file's header */
+ if (ucode_raw->size < sizeof(*ucode) +
+ inst_size + data_size + init_size +
+ init_data_size + boot_size) {
+
+ IWL_DEBUG_INFO("uCode file size %d too small\n",
+ (int)ucode_raw->size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+
+ /* Verify that uCode images will fit in card's SRAM */
+ if (inst_size > priv->hw_params.max_inst_size) {
+ IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
+ inst_size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+
+ if (data_size > priv->hw_params.max_data_size) {
+ IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
+ data_size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+ if (init_size > priv->hw_params.max_inst_size) {
+ IWL_DEBUG_INFO
+ ("uCode init instr len %d too large to fit in\n",
+ init_size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+ if (init_data_size > priv->hw_params.max_data_size) {
+ IWL_DEBUG_INFO
+ ("uCode init data len %d too large to fit in\n",
+ init_data_size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+ if (boot_size > priv->hw_params.max_bsm_size) {
+ IWL_DEBUG_INFO
+ ("uCode boot instr len %d too large to fit in\n",
+ boot_size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+
+ /* Allocate ucode buffers for card's bus-master loading ... */
+
+ /* Runtime instructions and 2 copies of data:
+ * 1) unmodified from disk
+ * 2) backup cache for save/restore during power-downs */
+ priv->ucode_code.len = inst_size;
+ iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
+
+ priv->ucode_data.len = data_size;
+ iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
+
+ priv->ucode_data_backup.len = data_size;
+ iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
+
+ /* Initialization instructions and data */
+ if (init_size && init_data_size) {
+ priv->ucode_init.len = init_size;
+ iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
+
+ priv->ucode_init_data.len = init_data_size;
+ iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
+
+ if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
+ goto err_pci_alloc;
+ }
+
+ /* Bootstrap (instructions only, no data) */
+ if (boot_size) {
+ priv->ucode_boot.len = boot_size;
+ iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
+
+ if (!priv->ucode_boot.v_addr)
+ goto err_pci_alloc;
+ }
+
+ /* Copy images into buffers for card's bus-master reads ... */
+
+ /* Runtime instructions (first block of data in file) */
+ src = &ucode->data[0];
+ len = priv->ucode_code.len;
+ IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len);
+ memcpy(priv->ucode_code.v_addr, src, len);
+ IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
+ priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
+
+ /* Runtime data (2nd block)
+ * NOTE: Copy into backup buffer will be done in iwl4965_up() */
+ src = &ucode->data[inst_size];
+ len = priv->ucode_data.len;
+ IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len);
+ memcpy(priv->ucode_data.v_addr, src, len);
+ memcpy(priv->ucode_data_backup.v_addr, src, len);
+
+ /* Initialization instructions (3rd block) */
+ if (init_size) {
+ src = &ucode->data[inst_size + data_size];
+ len = priv->ucode_init.len;
+ IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
+ len);
+ memcpy(priv->ucode_init.v_addr, src, len);
+ }
+
+ /* Initialization data (4th block) */
+ if (init_data_size) {
+ src = &ucode->data[inst_size + data_size + init_size];
+ len = priv->ucode_init_data.len;
+ IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n",
+ len);
+ memcpy(priv->ucode_init_data.v_addr, src, len);
+ }
+
+ /* Bootstrap instructions (5th block) */
+ src = &ucode->data[inst_size + data_size + init_size + init_data_size];
+ len = priv->ucode_boot.len;
+ IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len);
+ memcpy(priv->ucode_boot.v_addr, src, len);
+
+ /* We have our copies now, allow OS release its copies */
+ release_firmware(ucode_raw);
+ return 0;
+
+ err_pci_alloc:
+ IWL_ERROR("failed to allocate pci memory\n");
+ ret = -ENOMEM;
+ iwl4965_dealloc_ucode_pci(priv);
+
+ err_release:
+ release_firmware(ucode_raw);
+
+ error:
+ return ret;
+}
+
+/**
+ * iwl_alive_start - called after REPLY_ALIVE notification received
+ * from protocol/runtime uCode (initialization uCode's
+ * Alive gets handled by iwl_init_alive_start()).
+ */
+static void iwl_alive_start(struct iwl_priv *priv)
+{
+ int ret = 0;
+
+ IWL_DEBUG_INFO("Runtime Alive received.\n");
+
+ if (priv->card_alive.is_valid != UCODE_VALID_OK) {
+ /* We had an error bringing up the hardware, so take it
+ * all the way back down so we can try again */
+ IWL_DEBUG_INFO("Alive failed.\n");
+ goto restart;
+ }
+
+ /* Initialize uCode has loaded Runtime uCode ... verify inst image.
+ * This is a paranoid check, because we would not have gotten the
+ * "runtime" alive if code weren't properly loaded. */
+ if (iwl_verify_ucode(priv)) {
+ /* Runtime instruction load was bad;
+ * take it all the way back down so we can try again */
+ IWL_DEBUG_INFO("Bad runtime uCode load.\n");
+ goto restart;
+ }
+
+ iwl_clear_stations_table(priv);
+ ret = priv->cfg->ops->lib->alive_notify(priv);
+ if (ret) {
+ IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
+ ret);
+ goto restart;
+ }
+
+ /* After the ALIVE response, we can send host commands to 4965 uCode */
+ set_bit(STATUS_ALIVE, &priv->status);
+
+ if (iwl_is_rfkill(priv))
+ return;
+
+ ieee80211_wake_queues(priv->hw);
+
+ priv->active_rate = priv->rates_mask;
+ priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
+
+ if (iwl_is_associated(priv)) {
+ struct iwl_rxon_cmd *active_rxon =
+ (struct iwl_rxon_cmd *)&priv->active_rxon;
+
+ memcpy(&priv->staging_rxon, &priv->active_rxon,
+ sizeof(priv->staging_rxon));
+ active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ } else {
+ /* Initialize our rx_config data */
+ iwl4965_connection_init_rx_config(priv);
+ memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
+ }
+
+ /* Configure Bluetooth device coexistence support */
+ iwl4965_send_bt_config(priv);
+
+ iwl_reset_run_time_calib(priv);
+
+ /* Configure the adapter for unassociated operation */
+ iwl4965_commit_rxon(priv);
+
+ /* At this point, the NIC is initialized and operational */
+ iwl_rf_kill_ct_config(priv);
+
+ iwl_leds_register(priv);
+
+ IWL_DEBUG_INFO("ALIVE processing complete.\n");
+ set_bit(STATUS_READY, &priv->status);
+ wake_up_interruptible(&priv->wait_command_queue);
+
+ if (priv->error_recovering)
+ iwl4965_error_recovery(priv);
+
+ iwl_power_update_mode(priv, 1);
+ ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC);
+
+ if (test_and_clear_bit(STATUS_MODE_PENDING, &priv->status))
+ iwl4965_set_mode(priv, priv->iw_mode);
+
+ return;
+
+ restart:
+ queue_work(priv->workqueue, &priv->restart);
+}
+
+static void iwl_cancel_deferred_work(struct iwl_priv *priv);
+
+static void __iwl4965_down(struct iwl_priv *priv)
+{
+ unsigned long flags;
+ int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
+
+ IWL_DEBUG_INFO(DRV_NAME " is going down\n");
+
+ if (!exit_pending)
+ set_bit(STATUS_EXIT_PENDING, &priv->status);
+
+ iwl_leds_unregister(priv);
+
+ iwl_clear_stations_table(priv);
+
+ /* Unblock any waiting calls */
+ wake_up_interruptible_all(&priv->wait_command_queue);
+
+ /* Wipe out the EXIT_PENDING status bit if we are not actually
+ * exiting the module */
+ if (!exit_pending)
+ clear_bit(STATUS_EXIT_PENDING, &priv->status);
+
+ /* stop and reset the on-board processor */
+ iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
+
+ /* tell the device to stop sending interrupts */
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl4965_disable_interrupts(priv);
+ spin_unlock_irqrestore(&priv->lock, flags);
+ iwl_synchronize_irq(priv);
+
+ if (priv->mac80211_registered)
+ ieee80211_stop_queues(priv->hw);
+
+ /* If we have not previously called iwl4965_init() then
+ * clear all bits but the RF Kill and SUSPEND bits and return */
+ if (!iwl_is_init(priv)) {
+ priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
+ STATUS_RF_KILL_HW |
+ test_bit(STATUS_RF_KILL_SW, &priv->status) <<
+ STATUS_RF_KILL_SW |
+ test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
+ STATUS_GEO_CONFIGURED |
+ test_bit(STATUS_IN_SUSPEND, &priv->status) <<
+ STATUS_IN_SUSPEND |
+ test_bit(STATUS_EXIT_PENDING, &priv->status) <<
+ STATUS_EXIT_PENDING;
+ goto exit;
+ }
+
+ /* ...otherwise clear out all the status bits but the RF Kill and
+ * SUSPEND bits and continue taking the NIC down. */
+ priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
+ STATUS_RF_KILL_HW |
+ test_bit(STATUS_RF_KILL_SW, &priv->status) <<
+ STATUS_RF_KILL_SW |
+ test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
+ STATUS_GEO_CONFIGURED |
+ test_bit(STATUS_IN_SUSPEND, &priv->status) <<
+ STATUS_IN_SUSPEND |
+ test_bit(STATUS_FW_ERROR, &priv->status) <<
+ STATUS_FW_ERROR |
+ test_bit(STATUS_EXIT_PENDING, &priv->status) <<
+ STATUS_EXIT_PENDING;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl_clear_bit(priv, CSR_GP_CNTRL,
+ CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ iwl_txq_ctx_stop(priv);
+ iwl_rxq_stop(priv);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ if (!iwl_grab_nic_access(priv)) {
+ iwl_write_prph(priv, APMG_CLK_DIS_REG,
+ APMG_CLK_VAL_DMA_CLK_RQT);
+ iwl_release_nic_access(priv);
+ }
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ udelay(5);
+
+ /* FIXME: apm_ops.suspend(priv) */
+ priv->cfg->ops->lib->apm_ops.reset(priv);
+ priv->cfg->ops->lib->free_shared_mem(priv);
+
+ exit:
+ memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
+
+ if (priv->ibss_beacon)
+ dev_kfree_skb(priv->ibss_beacon);
+ priv->ibss_beacon = NULL;
+
+ /* clear out any free frames */
+ iwl_clear_free_frames(priv);
+}
+
+static void iwl4965_down(struct iwl_priv *priv)
+{
+ mutex_lock(&priv->mutex);
+ __iwl4965_down(priv);
+ mutex_unlock(&priv->mutex);
+
+ iwl_cancel_deferred_work(priv);
+}
+
+#define MAX_HW_RESTARTS 5
+
+static int __iwl4965_up(struct iwl_priv *priv)
+{
+ int i;
+ int ret;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
+ IWL_WARNING("Exit pending; will not bring the NIC up\n");
+ return -EIO;
+ }
+
+ if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
+ IWL_ERROR("ucode not available for device bringup\n");
+ return -EIO;
+ }
+
+ /* If platform's RF_KILL switch is NOT set to KILL */
+ if (iwl_read32(priv, CSR_GP_CNTRL) &
+ CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
+ clear_bit(STATUS_RF_KILL_HW, &priv->status);
+ else
+ set_bit(STATUS_RF_KILL_HW, &priv->status);
+
+ if (!test_bit(STATUS_IN_SUSPEND, &priv->status) &&
+ iwl_is_rfkill(priv)) {
+ IWL_WARNING("Radio disabled by %s RF Kill switch\n",
+ test_bit(STATUS_RF_KILL_HW, &priv->status) ? "HW" : "SW");
+ return -ENODEV;
+ }
+
+ iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
+
+ ret = priv->cfg->ops->lib->alloc_shared_mem(priv);
+ if (ret) {
+ IWL_ERROR("Unable to allocate shared memory\n");
+ return ret;
+ }
+
+ ret = iwl_hw_nic_init(priv);
+ if (ret) {
+ IWL_ERROR("Unable to init nic\n");
+ return ret;
+ }
+
+ /* make sure rfkill handshake bits are cleared */
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
+ CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+
+ /* clear (again), then enable host interrupts */
+ iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
+ iwl4965_enable_interrupts(priv);
+
+ /* really make sure rfkill handshake bits are cleared */
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+
+ /* Copy original ucode data image from disk into backup cache.
+ * This will be used to initialize the on-board processor's
+ * data SRAM for a clean start when the runtime program first loads. */
+ memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
+ priv->ucode_data.len);
+
+ /* We return success when we resume from suspend and rf_kill is on. */
+ if (test_bit(STATUS_RF_KILL_HW, &priv->status) ||
+ test_bit(STATUS_RF_KILL_SW, &priv->status))
+ return 0;
+
+ for (i = 0; i < MAX_HW_RESTARTS; i++) {
+
+ iwl_clear_stations_table(priv);
+
+ /* load bootstrap state machine,
+ * load bootstrap program into processor's memory,
+ * prepare to load the "initialize" uCode */
+ ret = priv->cfg->ops->lib->load_ucode(priv);
+
+ if (ret) {
+ IWL_ERROR("Unable to set up bootstrap uCode: %d\n", ret);
+ continue;
+ }
+
+ /* Clear out the uCode error bit if it is set */
+ clear_bit(STATUS_FW_ERROR, &priv->status);
+
+ /* start card; "initialize" will load runtime ucode */
+ iwl4965_nic_start(priv);
+
+ IWL_DEBUG_INFO(DRV_NAME " is coming up\n");
+
+ return 0;
+ }
+
+ set_bit(STATUS_EXIT_PENDING, &priv->status);
+ __iwl4965_down(priv);
+ clear_bit(STATUS_EXIT_PENDING, &priv->status);
+
+ /* tried to restart and config the device for as long as our
+ * patience could withstand */
+ IWL_ERROR("Unable to initialize device after %d attempts.\n", i);
+ return -EIO;
+}
+
+
+/*****************************************************************************
+ *
+ * Workqueue callbacks
+ *
+ *****************************************************************************/
+
+static void iwl_bg_init_alive_start(struct work_struct *data)
+{
+ struct iwl_priv *priv =
+ container_of(data, struct iwl_priv, init_alive_start.work);
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ mutex_lock(&priv->mutex);
+ priv->cfg->ops->lib->init_alive_start(priv);
+ mutex_unlock(&priv->mutex);
+}
+
+static void iwl_bg_alive_start(struct work_struct *data)
+{
+ struct iwl_priv *priv =
+ container_of(data, struct iwl_priv, alive_start.work);
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ mutex_lock(&priv->mutex);
+ iwl_alive_start(priv);
+ mutex_unlock(&priv->mutex);
+}
+
+static void iwl4965_bg_rf_kill(struct work_struct *work)
+{
+ struct iwl_priv *priv = container_of(work, struct iwl_priv, rf_kill);
+
+ wake_up_interruptible(&priv->wait_command_queue);
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ mutex_lock(&priv->mutex);
+
+ if (!iwl_is_rfkill(priv)) {
+ IWL_DEBUG(IWL_DL_RF_KILL,
+ "HW and/or SW RF Kill no longer active, restarting "
+ "device\n");
+ if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
+ queue_work(priv->workqueue, &priv->restart);
+ } else {
+ /* make sure mac80211 stop sending Tx frame */
+ if (priv->mac80211_registered)
+ ieee80211_stop_queues(priv->hw);
+
+ if (!test_bit(STATUS_RF_KILL_HW, &priv->status))
+ IWL_DEBUG_RF_KILL("Can not turn radio back on - "
+ "disabled by SW switch\n");
+ else
+ IWL_WARNING("Radio Frequency Kill Switch is On:\n"
+ "Kill switch must be turned off for "
+ "wireless networking to work.\n");
+ }
+ mutex_unlock(&priv->mutex);
+ iwl_rfkill_set_hw_state(priv);
+}
+
+static void iwl4965_bg_set_monitor(struct work_struct *work)
+{
+ struct iwl_priv *priv = container_of(work,
+ struct iwl_priv, set_monitor);
+ int ret;
+
+ IWL_DEBUG(IWL_DL_STATE, "setting monitor mode\n");
+
+ mutex_lock(&priv->mutex);
+
+ ret = iwl4965_set_mode(priv, IEEE80211_IF_TYPE_MNTR);
+
+ if (ret) {
+ if (ret == -EAGAIN)
+ IWL_DEBUG(IWL_DL_STATE, "leave - not ready\n");
+ else
+ IWL_ERROR("iwl4965_set_mode() failed ret = %d\n", ret);
+ }
+
+ mutex_unlock(&priv->mutex);
+}
+
+static void iwl_bg_run_time_calib_work(struct work_struct *work)
+{
+ struct iwl_priv *priv = container_of(work, struct iwl_priv,
+ run_time_calib_work);
+
+ mutex_lock(&priv->mutex);
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
+ test_bit(STATUS_SCANNING, &priv->status)) {
+ mutex_unlock(&priv->mutex);
+ return;
+ }
+
+ if (priv->start_calib) {
+ iwl_chain_noise_calibration(priv, &priv->statistics);
+
+ iwl_sensitivity_calibration(priv, &priv->statistics);
+ }
+
+ mutex_unlock(&priv->mutex);
+ return;
+}
+
+static void iwl4965_bg_up(struct work_struct *data)
+{
+ struct iwl_priv *priv = container_of(data, struct iwl_priv, up);
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ mutex_lock(&priv->mutex);
+ __iwl4965_up(priv);
+ mutex_unlock(&priv->mutex);
+ iwl_rfkill_set_hw_state(priv);
+}
+
+static void iwl4965_bg_restart(struct work_struct *data)
+{
+ struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ iwl4965_down(priv);
+ queue_work(priv->workqueue, &priv->up);
+}
+
+static void iwl4965_bg_rx_replenish(struct work_struct *data)
+{
+ struct iwl_priv *priv =
+ container_of(data, struct iwl_priv, rx_replenish);
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ mutex_lock(&priv->mutex);
+ iwl_rx_replenish(priv);
+ mutex_unlock(&priv->mutex);
+}
+
+#define IWL_DELAY_NEXT_SCAN (HZ*2)
+
+static void iwl4965_post_associate(struct iwl_priv *priv)
+{
+ struct ieee80211_conf *conf = NULL;
+ int ret = 0;
+ DECLARE_MAC_BUF(mac);
+ unsigned long flags;
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
+ IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__);
+ return;
+ }
+
+ IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
+ priv->assoc_id,
+ print_mac(mac, priv->active_rxon.bssid_addr));
+
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+
+ if (!priv->vif || !priv->is_open)
+ return;
+
+ iwl_scan_cancel_timeout(priv, 200);
+
+ conf = ieee80211_get_hw_conf(priv->hw);
+
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl4965_commit_rxon(priv);
+
+ memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd));
+ iwl4965_setup_rxon_timing(priv);
+ ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
+ sizeof(priv->rxon_timing), &priv->rxon_timing);
+ if (ret)
+ IWL_WARNING("REPLY_RXON_TIMING failed - "
+ "Attempting to continue.\n");
+
+ priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
+
+ if (priv->current_ht_config.is_ht)
+ iwl_set_rxon_ht(priv, &priv->current_ht_config);
+
+ iwl_set_rxon_chain(priv);
+ priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
+
+ IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
+ priv->assoc_id, priv->beacon_int);
+
+ if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
+ priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
+ else
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
+
+ if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
+ if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
+ priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
+ else
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+
+ }
+
+ iwl4965_commit_rxon(priv);
+
+ switch (priv->iw_mode) {
+ case IEEE80211_IF_TYPE_STA:
+ break;
+
+ case IEEE80211_IF_TYPE_IBSS:
+
+ /* assume default assoc id */
+ priv->assoc_id = 1;
+
+ iwl_rxon_add_station(priv, priv->bssid, 0);
+ iwl4965_send_beacon_cmd(priv);
+
+ break;
+
+ default:
+ IWL_ERROR("%s Should not be called in %d mode\n",
+ __FUNCTION__, priv->iw_mode);
+ break;
+ }
+
+ /* Enable Rx differential gain and sensitivity calibrations */
+ iwl_chain_noise_reset(priv);
+ priv->start_calib = 1;
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
+ priv->assoc_station_added = 1;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl_activate_qos(priv, 0);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ iwl_power_update_mode(priv, 0);
+ /* we have just associated, don't start scan too early */
+ priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN;
+}
+
+static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
+
+static void iwl_bg_scan_completed(struct work_struct *work)
+{
+ struct iwl_priv *priv =
+ container_of(work, struct iwl_priv, scan_completed);
+
+ IWL_DEBUG_SCAN("SCAN complete scan\n");
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ if (test_bit(STATUS_CONF_PENDING, &priv->status))
+ iwl4965_mac_config(priv->hw, ieee80211_get_hw_conf(priv->hw));
+
+ ieee80211_scan_completed(priv->hw);
+
+ /* Since setting the TXPOWER may have been deferred while
+ * performing the scan, fire one off */
+ mutex_lock(&priv->mutex);
+ iwl_set_tx_power(priv, priv->tx_power_user_lmt, true);
+ mutex_unlock(&priv->mutex);
+}
+
+/*****************************************************************************
+ *
+ * mac80211 entry point functions
+ *
+ *****************************************************************************/
+
+#define UCODE_READY_TIMEOUT (4 * HZ)
+
+static int iwl4965_mac_start(struct ieee80211_hw *hw)
+{
+ struct iwl_priv *priv = hw->priv;
+ int ret;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ if (pci_enable_device(priv->pci_dev)) {
+ IWL_ERROR("Fail to pci_enable_device\n");
+ return -ENODEV;
+ }
+ pci_restore_state(priv->pci_dev);
+ pci_enable_msi(priv->pci_dev);
+
+ ret = request_irq(priv->pci_dev->irq, iwl4965_isr, IRQF_SHARED,
+ DRV_NAME, priv);
+ if (ret) {
+ IWL_ERROR("Error allocating IRQ %d\n", priv->pci_dev->irq);
+ goto out_disable_msi;
+ }
+
+ /* we should be verifying the device is ready to be opened */
+ mutex_lock(&priv->mutex);
+
+ memset(&priv->staging_rxon, 0, sizeof(struct iwl_rxon_cmd));
+ /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
+ * ucode filename and max sizes are card-specific. */
+
+ if (!priv->ucode_code.len) {
+ ret = iwl4965_read_ucode(priv);
+ if (ret) {
+ IWL_ERROR("Could not read microcode: %d\n", ret);
+ mutex_unlock(&priv->mutex);
+ goto out_release_irq;
+ }
+ }
+
+ ret = __iwl4965_up(priv);
+
+ mutex_unlock(&priv->mutex);
+
+ iwl_rfkill_set_hw_state(priv);
+
+ if (ret)
+ goto out_release_irq;
+
+ IWL_DEBUG_INFO("Start UP work done.\n");
+
+ if (test_bit(STATUS_IN_SUSPEND, &priv->status))
+ return 0;
+
+ /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from
+ * mac80211 will not be run successfully. */
+ ret = wait_event_interruptible_timeout(priv->wait_command_queue,
+ test_bit(STATUS_READY, &priv->status),
+ UCODE_READY_TIMEOUT);
+ if (!ret) {
+ if (!test_bit(STATUS_READY, &priv->status)) {
+ IWL_ERROR("START_ALIVE timeout after %dms.\n",
+ jiffies_to_msecs(UCODE_READY_TIMEOUT));
+ ret = -ETIMEDOUT;
+ goto out_release_irq;
+ }
+ }
+
+ priv->is_open = 1;
+ IWL_DEBUG_MAC80211("leave\n");
+ return 0;
+
+out_release_irq:
+ free_irq(priv->pci_dev->irq, priv);
+out_disable_msi:
+ pci_disable_msi(priv->pci_dev);
+ pci_disable_device(priv->pci_dev);
+ priv->is_open = 0;
+ IWL_DEBUG_MAC80211("leave - failed\n");
+ return ret;
+}
+
+static void iwl4965_mac_stop(struct ieee80211_hw *hw)
+{
+ struct iwl_priv *priv = hw->priv;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ if (!priv->is_open) {
+ IWL_DEBUG_MAC80211("leave - skip\n");
+ return;
+ }
+
+ priv->is_open = 0;
+
+ if (iwl_is_ready_rf(priv)) {
+ /* stop mac, cancel any scan request and clear
+ * RXON_FILTER_ASSOC_MSK BIT
+ */
+ mutex_lock(&priv->mutex);
+ iwl_scan_cancel_timeout(priv, 100);
+ mutex_unlock(&priv->mutex);
+ }
+
+ iwl4965_down(priv);
+
+ flush_workqueue(priv->workqueue);
+ free_irq(priv->pci_dev->irq, priv);
+ pci_disable_msi(priv->pci_dev);
+ pci_save_state(priv->pci_dev);
+ pci_disable_device(priv->pci_dev);
+
+ IWL_DEBUG_MAC80211("leave\n");
+}
+
+static int iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+{
+ struct iwl_priv *priv = hw->priv;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) {
+ IWL_DEBUG_MAC80211("leave - monitor\n");
+ dev_kfree_skb_any(skb);
+ return 0;
+ }
+
+ IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
+ ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
+
+ if (iwl_tx_skb(priv, skb))
+ dev_kfree_skb_any(skb);
+
+ IWL_DEBUG_MAC80211("leave\n");
+ return 0;
+}
+
+static int iwl4965_mac_add_interface(struct ieee80211_hw *hw,
+ struct ieee80211_if_init_conf *conf)
+{
+ struct iwl_priv *priv = hw->priv;
+ unsigned long flags;
+ DECLARE_MAC_BUF(mac);
+
+ IWL_DEBUG_MAC80211("enter: type %d\n", conf->type);
+
+ if (priv->vif) {
+ IWL_DEBUG_MAC80211("leave - vif != NULL\n");
+ return -EOPNOTSUPP;
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->vif = conf->vif;
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ mutex_lock(&priv->mutex);
+
+ if (conf->mac_addr) {
+ IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac, conf->mac_addr));
+ memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
+ }
+
+ if (iwl4965_set_mode(priv, conf->type) == -EAGAIN)
+ /* we are not ready, will run again when ready */
+ set_bit(STATUS_MODE_PENDING, &priv->status);
+
+ mutex_unlock(&priv->mutex);
+
+ IWL_DEBUG_MAC80211("leave\n");
+ return 0;
+}
+
+/**
+ * iwl4965_mac_config - mac80211 config callback
+ *
+ * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
+ * be set inappropriately and the driver currently sets the hardware up to
+ * use it whenever needed.
+ */
+static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
+{
+ struct iwl_priv *priv = hw->priv;
+ const struct iwl_channel_info *ch_info;
+ unsigned long flags;
+ int ret = 0;
+ u16 channel;
+
+ mutex_lock(&priv->mutex);
+ IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value);
+
+ priv->add_radiotap = !!(conf->flags & IEEE80211_CONF_RADIOTAP);
+
+ if (conf->radio_enabled && iwl_radio_kill_sw_enable_radio(priv)) {
+ IWL_DEBUG_MAC80211("leave - RF-KILL - waiting for uCode\n");
+ goto out;
+ }
+
+ if (!conf->radio_enabled)
+ iwl_radio_kill_sw_disable_radio(priv);
+
+ if (!iwl_is_ready(priv)) {
+ IWL_DEBUG_MAC80211("leave - not ready\n");
+ ret = -EIO;
+ goto out;
+ }
+
+ if (unlikely(!priv->cfg->mod_params->disable_hw_scan &&
+ test_bit(STATUS_SCANNING, &priv->status))) {
+ IWL_DEBUG_MAC80211("leave - scanning\n");
+ set_bit(STATUS_CONF_PENDING, &priv->status);
+ mutex_unlock(&priv->mutex);
+ return 0;
+ }
+
+ channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
+ ch_info = iwl_get_channel_info(priv, conf->channel->band, channel);
+ if (!is_channel_valid(ch_info)) {
+ IWL_DEBUG_MAC80211("leave - invalid channel\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS &&
+ !is_channel_ibss(ch_info)) {
+ IWL_ERROR("channel %d in band %d not IBSS channel\n",
+ conf->channel->hw_value, conf->channel->band);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+
+ /* if we are switching from ht to 2.4 clear flags
+ * from any ht related info since 2.4 does not
+ * support ht */
+ if ((le16_to_cpu(priv->staging_rxon.channel) != channel)
+#ifdef IEEE80211_CONF_CHANNEL_SWITCH
+ && !(conf->flags & IEEE80211_CONF_CHANNEL_SWITCH)
+#endif
+ )
+ priv->staging_rxon.flags = 0;
+
+ iwl_set_rxon_channel(priv, conf->channel->band, channel);
+
+ iwl_set_flags_for_band(priv, conf->channel->band);
+
+ /* The list of supported rates and rate mask can be different
+ * for each band; since the band may have changed, reset
+ * the rate mask to what mac80211 lists */
+ iwl4965_set_rate(priv);
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+#ifdef IEEE80211_CONF_CHANNEL_SWITCH
+ if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) {
+ iwl4965_hw_channel_switch(priv, conf->channel);
+ goto out;
+ }
+#endif
+
+ if (!conf->radio_enabled) {
+ IWL_DEBUG_MAC80211("leave - radio disabled\n");
+ goto out;
+ }
+
+ if (iwl_is_rfkill(priv)) {
+ IWL_DEBUG_MAC80211("leave - RF kill\n");
+ ret = -EIO;
+ goto out;
+ }
+
+ IWL_DEBUG_MAC80211("TX Power old=%d new=%d\n",
+ priv->tx_power_user_lmt, conf->power_level);
+
+ iwl_set_tx_power(priv, conf->power_level, false);
+
+ iwl4965_set_rate(priv);
+
+ if (memcmp(&priv->active_rxon,
+ &priv->staging_rxon, sizeof(priv->staging_rxon)))
+ iwl4965_commit_rxon(priv);
+ else
+ IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
+
+ IWL_DEBUG_MAC80211("leave\n");
+
+out:
+ clear_bit(STATUS_CONF_PENDING, &priv->status);
+ mutex_unlock(&priv->mutex);
+ return ret;
+}
+
+static void iwl4965_config_ap(struct iwl_priv *priv)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ /* The following should be done only at AP bring up */
+ if (!(iwl_is_associated(priv))) {
+
+ /* RXON - unassoc (to set timing command) */
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl4965_commit_rxon(priv);
+
+ /* RXON Timing */
+ memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd));
+ iwl4965_setup_rxon_timing(priv);
+ ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
+ sizeof(priv->rxon_timing), &priv->rxon_timing);
+ if (ret)
+ IWL_WARNING("REPLY_RXON_TIMING failed - "
+ "Attempting to continue.\n");
+
+ iwl_set_rxon_chain(priv);
+
+ /* FIXME: what should be the assoc_id for AP? */
+ priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
+ if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
+ priv->staging_rxon.flags |=
+ RXON_FLG_SHORT_PREAMBLE_MSK;
+ else
+ priv->staging_rxon.flags &=
+ ~RXON_FLG_SHORT_PREAMBLE_MSK;
+
+ if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
+ if (priv->assoc_capability &
+ WLAN_CAPABILITY_SHORT_SLOT_TIME)
+ priv->staging_rxon.flags |=
+ RXON_FLG_SHORT_SLOT_MSK;
+ else
+ priv->staging_rxon.flags &=
+ ~RXON_FLG_SHORT_SLOT_MSK;
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
+ priv->staging_rxon.flags &=
+ ~RXON_FLG_SHORT_SLOT_MSK;
+ }
+ /* restore RXON assoc */
+ priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
+ iwl4965_commit_rxon(priv);
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl_activate_qos(priv, 1);
+ spin_unlock_irqrestore(&priv->lock, flags);
+ iwl_rxon_add_station(priv, iwl_bcast_addr, 0);
+ }
+ iwl4965_send_beacon_cmd(priv);
+
+ /* FIXME - we need to add code here to detect a totally new
+ * configuration, reset the AP, unassoc, rxon timing, assoc,
+ * clear sta table, add BCAST sta... */
+}
+
+/* temporary */
+static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb);
+
+static int iwl4965_mac_config_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_if_conf *conf)
+{
+ struct iwl_priv *priv = hw->priv;
+ DECLARE_MAC_BUF(mac);
+ unsigned long flags;
+ int rc;
+
+ if (conf == NULL)
+ return -EIO;
+
+ if (priv->vif != vif) {
+ IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
+ return 0;
+ }
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS &&
+ conf->changed & IEEE80211_IFCC_BEACON) {
+ struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
+ if (!beacon)
+ return -ENOMEM;
+ rc = iwl4965_mac_beacon_update(hw, beacon);
+ if (rc)
+ return rc;
+ }
+
+ if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
+ (!conf->ssid_len)) {
+ IWL_DEBUG_MAC80211
+ ("Leaving in AP mode because HostAPD is not ready.\n");
+ return 0;
+ }
+
+ if (!iwl_is_alive(priv))
+ return -EAGAIN;
+
+ mutex_lock(&priv->mutex);
+
+ if (conf->bssid)
+ IWL_DEBUG_MAC80211("bssid: %s\n",
+ print_mac(mac, conf->bssid));
+
+/*
+ * very dubious code was here; the probe filtering flag is never set:
+ *
+ if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
+ !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
+ */
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
+ if (!conf->bssid) {
+ conf->bssid = priv->mac_addr;
+ memcpy(priv->bssid, priv->mac_addr, ETH_ALEN);
+ IWL_DEBUG_MAC80211("bssid was set to: %s\n",
+ print_mac(mac, conf->bssid));
+ }
+ if (priv->ibss_beacon)
+ dev_kfree_skb(priv->ibss_beacon);
+
+ priv->ibss_beacon = ieee80211_beacon_get(hw, vif);
+ }
+
+ if (iwl_is_rfkill(priv))
+ goto done;
+
+ if (conf->bssid && !is_zero_ether_addr(conf->bssid) &&
+ !is_multicast_ether_addr(conf->bssid)) {
+ /* If there is currently a HW scan going on in the background
+ * then we need to cancel it else the RXON below will fail. */
+ if (iwl_scan_cancel_timeout(priv, 100)) {
+ IWL_WARNING("Aborted scan still in progress "
+ "after 100ms\n");
+ IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
+ mutex_unlock(&priv->mutex);
+ return -EAGAIN;
+ }
+ memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN);
+
+ /* TODO: Audit driver for usage of these members and see
+ * if mac80211 deprecates them (priv->bssid looks like it
+ * shouldn't be there, but I haven't scanned the IBSS code
+ * to verify) - jpk */
+ memcpy(priv->bssid, conf->bssid, ETH_ALEN);
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
+ iwl4965_config_ap(priv);
+ else {
+ rc = iwl4965_commit_rxon(priv);
+ if ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && rc)
+ iwl_rxon_add_station(
+ priv, priv->active_rxon.bssid_addr, 1);
+ }
+
+ } else {
+ iwl_scan_cancel_timeout(priv, 100);
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl4965_commit_rxon(priv);
+ }
+
+ done:
+ spin_lock_irqsave(&priv->lock, flags);
+ if (!conf->ssid_len)
+ memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
+ else
+ memcpy(priv->essid, conf->ssid, conf->ssid_len);
+
+ priv->essid_len = conf->ssid_len;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ IWL_DEBUG_MAC80211("leave\n");
+ mutex_unlock(&priv->mutex);
+
+ return 0;
+}
+
+static void iwl4965_configure_filter(struct ieee80211_hw *hw,
+ unsigned int changed_flags,
+ unsigned int *total_flags,
+ int mc_count, struct dev_addr_list *mc_list)
+{
+ struct iwl_priv *priv = hw->priv;
+
+ if (changed_flags & (*total_flags) & FIF_OTHER_BSS) {
+ IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n",
+ IEEE80211_IF_TYPE_MNTR,
+ changed_flags, *total_flags);
+ /* queue work 'cuz mac80211 is holding a lock which
+ * prevents us from issuing (synchronous) f/w cmds */
+ queue_work(priv->workqueue, &priv->set_monitor);
+ }
+ *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI |
+ FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
+}
+
+static void iwl4965_mac_remove_interface(struct ieee80211_hw *hw,
+ struct ieee80211_if_init_conf *conf)
+{
+ struct iwl_priv *priv = hw->priv;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ mutex_lock(&priv->mutex);
+
+ if (iwl_is_ready_rf(priv)) {
+ iwl_scan_cancel_timeout(priv, 100);
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl4965_commit_rxon(priv);
+ }
+ if (priv->vif == conf->vif) {
+ priv->vif = NULL;
+ memset(priv->bssid, 0, ETH_ALEN);
+ memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
+ priv->essid_len = 0;
+ }
+ mutex_unlock(&priv->mutex);
+
+ IWL_DEBUG_MAC80211("leave\n");
+
+}
+
+#define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
+static void iwl4965_bss_info_changed(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *bss_conf,
+ u32 changes)
+{
+ struct iwl_priv *priv = hw->priv;
+
+ IWL_DEBUG_MAC80211("changes = 0x%X\n", changes);
+
+ if (changes & BSS_CHANGED_ERP_PREAMBLE) {
+ IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n",
+ bss_conf->use_short_preamble);
+ if (bss_conf->use_short_preamble)
+ priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
+ else
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
+ }
+
+ if (changes & BSS_CHANGED_ERP_CTS_PROT) {
+ IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot);
+ if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
+ priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK;
+ else
+ priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
+ }
+
+ if (changes & BSS_CHANGED_HT) {
+ IWL_DEBUG_MAC80211("HT %d\n", bss_conf->assoc_ht);
+ iwl4965_ht_conf(priv, bss_conf);
+ iwl_set_rxon_chain(priv);
+ }
+
+ if (changes & BSS_CHANGED_ASSOC) {
+ IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf->assoc);
+ /* This should never happen as this function should
+ * never be called from interrupt context. */
+ if (WARN_ON_ONCE(in_interrupt()))
+ return;
+ if (bss_conf->assoc) {
+ priv->assoc_id = bss_conf->aid;
+ priv->beacon_int = bss_conf->beacon_int;
+ priv->power_data.dtim_period = bss_conf->dtim_period;
+ priv->timestamp = bss_conf->timestamp;
+ priv->assoc_capability = bss_conf->assoc_capability;
+ priv->next_scan_jiffies = jiffies +
+ IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
+ mutex_lock(&priv->mutex);
+ iwl4965_post_associate(priv);
+ mutex_unlock(&priv->mutex);
+ } else {
+ priv->assoc_id = 0;
+ IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf->assoc);
+ }
+ } else if (changes && iwl_is_associated(priv) && priv->assoc_id) {
+ IWL_DEBUG_MAC80211("Associated Changes %d\n", changes);
+ iwl_send_rxon_assoc(priv);
+ }
+
+}
+
+static int iwl4965_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
+{
+ int rc = 0;
+ unsigned long flags;
+ struct iwl_priv *priv = hw->priv;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ mutex_lock(&priv->mutex);
+ spin_lock_irqsave(&priv->lock, flags);
+
+ if (!iwl_is_ready_rf(priv)) {
+ rc = -EIO;
+ IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
+ goto out_unlock;
+ }
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { /* APs don't scan */
+ rc = -EIO;
+ IWL_ERROR("ERROR: APs don't scan\n");
+ goto out_unlock;
+ }
+
+ /* we don't schedule scan within next_scan_jiffies period */
+ if (priv->next_scan_jiffies &&
+ time_after(priv->next_scan_jiffies, jiffies)) {
+ rc = -EAGAIN;
+ goto out_unlock;
+ }
+ /* if we just finished scan ask for delay */
+ if (priv->last_scan_jiffies && time_after(priv->last_scan_jiffies +
+ IWL_DELAY_NEXT_SCAN, jiffies)) {
+ rc = -EAGAIN;
+ goto out_unlock;
+ }
+ if (len) {
+ IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
+ iwl_escape_essid(ssid, len), (int)len);
+
+ priv->one_direct_scan = 1;
+ priv->direct_ssid_len = (u8)
+ min((u8) len, (u8) IW_ESSID_MAX_SIZE);
+ memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len);
+ } else
+ priv->one_direct_scan = 0;
+
+ rc = iwl_scan_initiate(priv);
+
+ IWL_DEBUG_MAC80211("leave\n");
+
+out_unlock:
+ spin_unlock_irqrestore(&priv->lock, flags);
+ mutex_unlock(&priv->mutex);
+
+ return rc;
+}
+
+static void iwl4965_mac_update_tkip_key(struct ieee80211_hw *hw,
+ struct ieee80211_key_conf *keyconf, const u8 *addr,
+ u32 iv32, u16 *phase1key)
+{
+ struct iwl_priv *priv = hw->priv;
+ u8 sta_id = IWL_INVALID_STATION;
+ unsigned long flags;
+ __le16 key_flags = 0;
+ int i;
+ DECLARE_MAC_BUF(mac);
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ sta_id = iwl_find_station(priv, addr);
+ if (sta_id == IWL_INVALID_STATION) {
+ IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
+ print_mac(mac, addr));
+ return;
+ }
+
+ iwl_scan_cancel_timeout(priv, 100);
+
+ key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
+ key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
+ key_flags &= ~STA_KEY_FLG_INVALID;
+
+ if (sta_id == priv->hw_params.bcast_sta_id)
+ key_flags |= STA_KEY_MULTICAST_MSK;
+
+ spin_lock_irqsave(&priv->sta_lock, flags);
+
+ priv->stations[sta_id].sta.key.key_flags = key_flags;
+ priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32;
+
+ for (i = 0; i < 5; i++)
+ priv->stations[sta_id].sta.key.tkip_rx_ttak[i] =
+ cpu_to_le16(phase1key[i]);
+
+ priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
+ priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+
+ iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
+
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+ IWL_DEBUG_MAC80211("leave\n");
+}
+
+static int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+ const u8 *local_addr, const u8 *addr,
+ struct ieee80211_key_conf *key)
+{
+ struct iwl_priv *priv = hw->priv;
+ DECLARE_MAC_BUF(mac);
+ int ret = 0;
+ u8 sta_id = IWL_INVALID_STATION;
+ u8 is_default_wep_key = 0;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ if (priv->hw_params.sw_crypto) {
+ IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
+ return -EOPNOTSUPP;
+ }
+
+ if (is_zero_ether_addr(addr))
+ /* only support pairwise keys */
+ return -EOPNOTSUPP;
+
+ sta_id = iwl_find_station(priv, addr);
+ if (sta_id == IWL_INVALID_STATION) {
+ IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
+ print_mac(mac, addr));
+ return -EINVAL;
+
+ }
+
+ mutex_lock(&priv->mutex);
+ iwl_scan_cancel_timeout(priv, 100);
+ mutex_unlock(&priv->mutex);
+
+ /* If we are getting WEP group key and we didn't receive any key mapping
+ * so far, we are in legacy wep mode (group key only), otherwise we are
+ * in 1X mode.
+ * In legacy wep mode, we use another host command to the uCode */
+ if (key->alg == ALG_WEP && sta_id == priv->hw_params.bcast_sta_id &&
+ priv->iw_mode != IEEE80211_IF_TYPE_AP) {
+ if (cmd == SET_KEY)
+ is_default_wep_key = !priv->key_mapping_key;
+ else
+ is_default_wep_key =
+ (key->hw_key_idx == HW_KEY_DEFAULT);
+ }
+
+ switch (cmd) {
+ case SET_KEY:
+ if (is_default_wep_key)
+ ret = iwl_set_default_wep_key(priv, key);
+ else
+ ret = iwl_set_dynamic_key(priv, key, sta_id);
+
+ IWL_DEBUG_MAC80211("enable hwcrypto key\n");
+ break;
+ case DISABLE_KEY:
+ if (is_default_wep_key)
+ ret = iwl_remove_default_wep_key(priv, key);
+ else
+ ret = iwl_remove_dynamic_key(priv, key, sta_id);
+
+ IWL_DEBUG_MAC80211("disable hwcrypto key\n");
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ IWL_DEBUG_MAC80211("leave\n");
+
+ return ret;
+}
+
+static int iwl4965_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
+ const struct ieee80211_tx_queue_params *params)
+{
+ struct iwl_priv *priv = hw->priv;
+ unsigned long flags;
+ int q;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ if (!iwl_is_ready_rf(priv)) {
+ IWL_DEBUG_MAC80211("leave - RF not ready\n");
+ return -EIO;
+ }
+
+ if (queue >= AC_NUM) {
+ IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue);
+ return 0;
+ }
+
+ if (!priv->qos_data.qos_enable) {
+ priv->qos_data.qos_active = 0;
+ IWL_DEBUG_MAC80211("leave - qos not enabled\n");
+ return 0;
+ }
+ q = AC_NUM - 1 - queue;
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min);
+ priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max);
+ priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
+ priv->qos_data.def_qos_parm.ac[q].edca_txop =
+ cpu_to_le16((params->txop * 32));
+
+ priv->qos_data.def_qos_parm.ac[q].reserved1 = 0;
+ priv->qos_data.qos_active = 1;
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
+ iwl_activate_qos(priv, 1);
+ else if (priv->assoc_id && iwl_is_associated(priv))
+ iwl_activate_qos(priv, 0);
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ IWL_DEBUG_MAC80211("leave\n");
+ return 0;
+}
+
+static int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
+ enum ieee80211_ampdu_mlme_action action,
+ const u8 *addr, u16 tid, u16 *ssn)
+{
+ struct iwl_priv *priv = hw->priv;
+ DECLARE_MAC_BUF(mac);
+
+ IWL_DEBUG_HT("A-MPDU action on addr %s tid %d\n",
+ print_mac(mac, addr), tid);
+
+ if (!(priv->cfg->sku & IWL_SKU_N))
+ return -EACCES;
+
+ switch (action) {
+ case IEEE80211_AMPDU_RX_START:
+ IWL_DEBUG_HT("start Rx\n");
+ return iwl_rx_agg_start(priv, addr, tid, *ssn);
+ case IEEE80211_AMPDU_RX_STOP:
+ IWL_DEBUG_HT("stop Rx\n");
+ return iwl_rx_agg_stop(priv, addr, tid);
+ case IEEE80211_AMPDU_TX_START:
+ IWL_DEBUG_HT("start Tx\n");
+ return iwl_tx_agg_start(priv, addr, tid, ssn);
+ case IEEE80211_AMPDU_TX_STOP:
+ IWL_DEBUG_HT("stop Tx\n");
+ return iwl_tx_agg_stop(priv, addr, tid);
+ default:
+ IWL_DEBUG_HT("unknown\n");
+ return -EINVAL;
+ break;
+ }
+ return 0;
+}
+static int iwl4965_mac_get_tx_stats(struct ieee80211_hw *hw,
+ struct ieee80211_tx_queue_stats *stats)
+{
+ struct iwl_priv *priv = hw->priv;
+ int i, avail;
+ struct iwl_tx_queue *txq;
+ struct iwl_queue *q;
+ unsigned long flags;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ if (!iwl_is_ready_rf(priv)) {
+ IWL_DEBUG_MAC80211("leave - RF not ready\n");
+ return -EIO;
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ for (i = 0; i < AC_NUM; i++) {
+ txq = &priv->txq[i];
+ q = &txq->q;
+ avail = iwl_queue_space(q);
+
+ stats[i].len = q->n_window - avail;
+ stats[i].limit = q->n_window - q->high_mark;
+ stats[i].count = q->n_window;
+
+ }
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ IWL_DEBUG_MAC80211("leave\n");
+
+ return 0;
+}
+
+static int iwl4965_mac_get_stats(struct ieee80211_hw *hw,
+ struct ieee80211_low_level_stats *stats)
+{
+ struct iwl_priv *priv = hw->priv;
+
+ priv = hw->priv;
+ IWL_DEBUG_MAC80211("enter\n");
+ IWL_DEBUG_MAC80211("leave\n");
+
+ return 0;
+}
+
+static void iwl4965_mac_reset_tsf(struct ieee80211_hw *hw)
+{
+ struct iwl_priv *priv = hw->priv;
+ unsigned long flags;
+
+ mutex_lock(&priv->mutex);
+ IWL_DEBUG_MAC80211("enter\n");
+
+ spin_lock_irqsave(&priv->lock, flags);
+ memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info));
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ iwl_reset_qos(priv);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->assoc_id = 0;
+ priv->assoc_capability = 0;
+ priv->assoc_station_added = 0;
+
+ /* new association get rid of ibss beacon skb */
+ if (priv->ibss_beacon)
+ dev_kfree_skb(priv->ibss_beacon);
+
+ priv->ibss_beacon = NULL;
+
+ priv->beacon_int = priv->hw->conf.beacon_int;
+ priv->timestamp = 0;
+ if ((priv->iw_mode == IEEE80211_IF_TYPE_STA))
+ priv->beacon_int = 0;
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ if (!iwl_is_ready_rf(priv)) {
+ IWL_DEBUG_MAC80211("leave - not ready\n");
+ mutex_unlock(&priv->mutex);
+ return;
+ }
+
+ /* we are restarting association process
+ * clear RXON_FILTER_ASSOC_MSK bit
+ */
+ if (priv->iw_mode != IEEE80211_IF_TYPE_AP) {
+ iwl_scan_cancel_timeout(priv, 100);
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl4965_commit_rxon(priv);
+ }
+
+ iwl_power_update_mode(priv, 0);
+
+ /* Per mac80211.h: This is only used in IBSS mode... */
+ if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
+
+ IWL_DEBUG_MAC80211("leave - not in IBSS\n");
+ mutex_unlock(&priv->mutex);
+ return;
+ }
+
+ iwl4965_set_rate(priv);
+
+ mutex_unlock(&priv->mutex);
+
+ IWL_DEBUG_MAC80211("leave\n");
+}
+
+static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
+{
+ struct iwl_priv *priv = hw->priv;
+ unsigned long flags;
+ __le64 timestamp;
+
+ mutex_lock(&priv->mutex);
+ IWL_DEBUG_MAC80211("enter\n");
+
+ if (!iwl_is_ready_rf(priv)) {
+ IWL_DEBUG_MAC80211("leave - RF not ready\n");
+ mutex_unlock(&priv->mutex);
+ return -EIO;
+ }
+
+ if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
+ IWL_DEBUG_MAC80211("leave - not IBSS\n");
+ mutex_unlock(&priv->mutex);
+ return -EIO;
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ if (priv->ibss_beacon)
+ dev_kfree_skb(priv->ibss_beacon);
+
+ priv->ibss_beacon = skb;
+
+ priv->assoc_id = 0;
+ timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp;
+ priv->timestamp = le64_to_cpu(timestamp) + (priv->beacon_int * 1000);
+
+ IWL_DEBUG_MAC80211("leave\n");
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ iwl_reset_qos(priv);
+
+ iwl4965_post_associate(priv);
+
+ mutex_unlock(&priv->mutex);
+
+ return 0;
+}
+
+/*****************************************************************************
+ *
+ * sysfs attributes
+ *
+ *****************************************************************************/
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+
+/*
+ * The following adds a new attribute to the sysfs representation
+ * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
+ * used for controlling the debug level.
+ *
+ * See the level definitions in iwl for details.
+ */
+
+static ssize_t show_debug_level(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl_priv *priv = d->driver_data;
+
+ return sprintf(buf, "0x%08X\n", priv->debug_level);
+}
+static ssize_t store_debug_level(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl_priv *priv = d->driver_data;
+ char *p = (char *)buf;
+ u32 val;
+
+ val = simple_strtoul(p, &p, 0);
+ if (p == buf)
+ printk(KERN_INFO DRV_NAME
+ ": %s is not in hex or decimal form.\n", buf);
+ else
+ priv->debug_level = val;
+
+ return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
+ show_debug_level, store_debug_level);
+
+
+#endif /* CONFIG_IWLWIFI_DEBUG */
+
+
+static ssize_t show_version(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl_priv *priv = d->driver_data;
+ struct iwl_alive_resp *palive = &priv->card_alive;
+ ssize_t pos = 0;
+ u16 eeprom_ver;
+
+ if (palive->is_valid)
+ pos += sprintf(buf + pos,
+ "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n"
+ "fw type: 0x%01X 0x%01X\n",
+ palive->ucode_major, palive->ucode_minor,
+ palive->sw_rev[0], palive->sw_rev[1],
+ palive->ver_type, palive->ver_subtype);
+ else
+ pos += sprintf(buf + pos, "fw not loaded\n");
+
+ if (priv->eeprom) {
+ eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
+ pos += sprintf(buf + pos, "EEPROM version: 0x%x\n",
+ eeprom_ver);
+ } else {
+ pos += sprintf(buf + pos, "EEPROM not initialzed\n");
+ }
+
+ return pos;
+}
+
+static DEVICE_ATTR(version, S_IWUSR | S_IRUGO, show_version, NULL);
+
+static ssize_t show_temperature(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+
+ if (!iwl_is_alive(priv))
+ return -EAGAIN;
+
+ return sprintf(buf, "%d\n", priv->temperature);
+}
+
+static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
+
+static ssize_t show_tx_power(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+ return sprintf(buf, "%d\n", priv->tx_power_user_lmt);
+}
+
+static ssize_t store_tx_power(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+ char *p = (char *)buf;
+ u32 val;
+
+ val = simple_strtoul(p, &p, 10);
+ if (p == buf)
+ printk(KERN_INFO DRV_NAME
+ ": %s is not in decimal form.\n", buf);
+ else
+ iwl_set_tx_power(priv, val, false);
+
+ return count;
+}
+
+static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
+
+static ssize_t show_flags(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+
+ return sprintf(buf, "0x%04X\n", priv->active_rxon.flags);
+}
+
+static ssize_t store_flags(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+ u32 flags = simple_strtoul(buf, NULL, 0);
+
+ mutex_lock(&priv->mutex);
+ if (le32_to_cpu(priv->staging_rxon.flags) != flags) {
+ /* Cancel any currently running scans... */
+ if (iwl_scan_cancel_timeout(priv, 100))
+ IWL_WARNING("Could not cancel scan.\n");
+ else {
+ IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
+ flags);
+ priv->staging_rxon.flags = cpu_to_le32(flags);
+ iwl4965_commit_rxon(priv);
+ }
+ }
+ mutex_unlock(&priv->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags);
+
+static ssize_t show_filter_flags(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+
+ return sprintf(buf, "0x%04X\n",
+ le32_to_cpu(priv->active_rxon.filter_flags));
+}
+
+static ssize_t store_filter_flags(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+ u32 filter_flags = simple_strtoul(buf, NULL, 0);
+
+ mutex_lock(&priv->mutex);
+ if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) {
+ /* Cancel any currently running scans... */
+ if (iwl_scan_cancel_timeout(priv, 100))
+ IWL_WARNING("Could not cancel scan.\n");
+ else {
+ IWL_DEBUG_INFO("Committing rxon.filter_flags = "
+ "0x%04X\n", filter_flags);
+ priv->staging_rxon.filter_flags =
+ cpu_to_le32(filter_flags);
+ iwl4965_commit_rxon(priv);
+ }
+ }
+ mutex_unlock(&priv->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
+ store_filter_flags);
+
+#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
+
+static ssize_t show_measurement(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl_priv *priv = dev_get_drvdata(d);
+ struct iwl4965_spectrum_notification measure_report;
+ u32 size = sizeof(measure_report), len = 0, ofs = 0;
+ u8 *data = (u8 *) & measure_report;
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ if (!(priv->measurement_status & MEASUREMENT_READY)) {
+ spin_unlock_irqrestore(&priv->lock, flags);
+ return 0;
+ }
+ memcpy(&measure_report, &priv->measure_report, size);
+ priv->measurement_status = 0;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ while (size && (PAGE_SIZE - len)) {
+ hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
+ PAGE_SIZE - len, 1);
+ len = strlen(buf);
+ if (PAGE_SIZE - len)
+ buf[len++] = '\n';
+
+ ofs += 16;
+ size -= min(size, 16U);
+ }
+
+ return len;
+}
+
+static ssize_t store_measurement(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl_priv *priv = dev_get_drvdata(d);
+ struct ieee80211_measurement_params params = {
+ .channel = le16_to_cpu(priv->active_rxon.channel),
+ .start_time = cpu_to_le64(priv->last_tsf),
+ .duration = cpu_to_le16(1),
+ };
+ u8 type = IWL_MEASURE_BASIC;
+ u8 buffer[32];
+ u8 channel;
+
+ if (count) {
+ char *p = buffer;
+ strncpy(buffer, buf, min(sizeof(buffer), count));
+ channel = simple_strtoul(p, NULL, 0);
+ if (channel)
+ params.channel = channel;
+
+ p = buffer;
+ while (*p && *p != ' ')
+ p++;
+ if (*p)
+ type = simple_strtoul(p + 1, NULL, 0);
+ }
+
+ IWL_DEBUG_INFO("Invoking measurement of type %d on "
+ "channel %d (for '%s')\n", type, params.channel, buf);
+ iwl4965_get_measurement(priv, ¶ms, type);
+
+ return count;
+}
+
+static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR,
+ show_measurement, store_measurement);
+#endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */
+
+static ssize_t store_retry_rate(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl_priv *priv = dev_get_drvdata(d);
+
+ priv->retry_rate = simple_strtoul(buf, NULL, 0);
+ if (priv->retry_rate <= 0)
+ priv->retry_rate = 1;
+
+ return count;
+}
+
+static ssize_t show_retry_rate(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl_priv *priv = dev_get_drvdata(d);
+ return sprintf(buf, "%d", priv->retry_rate);
+}
+
+static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate,
+ store_retry_rate);
+
+static ssize_t store_power_level(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl_priv *priv = dev_get_drvdata(d);
+ int ret;
+ int mode;
+
+ mode = simple_strtoul(buf, NULL, 0);
+ mutex_lock(&priv->mutex);
+
+ if (!iwl_is_ready(priv)) {
+ ret = -EAGAIN;
+ goto out;
+ }
+
+ ret = iwl_power_set_user_mode(priv, mode);
+ if (ret) {
+ IWL_DEBUG_MAC80211("failed setting power mode.\n");
+ goto out;
+ }
+ ret = count;
+
+ out:
+ mutex_unlock(&priv->mutex);
+ return ret;
+}
+
+static ssize_t show_power_level(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl_priv *priv = dev_get_drvdata(d);
+ int mode = priv->power_data.user_power_setting;
+ int system = priv->power_data.system_power_setting;
+ int level = priv->power_data.power_mode;
+ char *p = buf;
+
+ switch (system) {
+ case IWL_POWER_SYS_AUTO:
+ p += sprintf(p, "SYSTEM:auto");
+ break;
+ case IWL_POWER_SYS_AC:
+ p += sprintf(p, "SYSTEM:ac");
+ break;
+ case IWL_POWER_SYS_BATTERY:
+ p += sprintf(p, "SYSTEM:battery");
+ break;
+ }
+
+ p += sprintf(p, "\tMODE:%s", (mode < IWL_POWER_AUTO)?"fixed":"auto");
+ p += sprintf(p, "\tINDEX:%d", level);
+ p += sprintf(p, "\n");
+ return (p - buf + 1);
+}
+
+static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
+ store_power_level);
+
+static ssize_t show_channels(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+
+ struct iwl_priv *priv = dev_get_drvdata(d);
+ struct ieee80211_channel *channels = NULL;
+ const struct ieee80211_supported_band *supp_band = NULL;
+ int len = 0, i;
+ int count = 0;
+
+ if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
+ return -EAGAIN;
+
+ supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
+ channels = supp_band->channels;
+ count = supp_band->n_channels;
+
+ len += sprintf(&buf[len],
+ "Displaying %d channels in 2.4GHz band "
+ "(802.11bg):\n", count);
+
+ for (i = 0; i < count; i++)
+ len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n",
+ ieee80211_frequency_to_channel(
+ channels[i].center_freq),
+ channels[i].max_power,
+ channels[i].flags & IEEE80211_CHAN_RADAR ?
+ " (IEEE 802.11h required)" : "",
+ (!(channels[i].flags & IEEE80211_CHAN_NO_IBSS)
+ || (channels[i].flags &
+ IEEE80211_CHAN_RADAR)) ? "" :
+ ", IBSS",
+ channels[i].flags &
+ IEEE80211_CHAN_PASSIVE_SCAN ?
+ "passive only" : "active/passive");
+
+ supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
+ channels = supp_band->channels;
+ count = supp_band->n_channels;
+
+ len += sprintf(&buf[len], "Displaying %d channels in 5.2GHz band "
+ "(802.11a):\n", count);
+
+ for (i = 0; i < count; i++)
+ len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n",
+ ieee80211_frequency_to_channel(
+ channels[i].center_freq),
+ channels[i].max_power,
+ channels[i].flags & IEEE80211_CHAN_RADAR ?
+ " (IEEE 802.11h required)" : "",
+ ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
+ || (channels[i].flags &
+ IEEE80211_CHAN_RADAR)) ? "" :
+ ", IBSS",
+ channels[i].flags &
+ IEEE80211_CHAN_PASSIVE_SCAN ?
+ "passive only" : "active/passive");
+
+ return len;
+}
+
+static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);
+
+static ssize_t show_statistics(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl_priv *priv = dev_get_drvdata(d);
+ u32 size = sizeof(struct iwl_notif_statistics);
+ u32 len = 0, ofs = 0;
+ u8 *data = (u8 *) & priv->statistics;
+ int rc = 0;
+
+ if (!iwl_is_alive(priv))
+ return -EAGAIN;
+
+ mutex_lock(&priv->mutex);
+ rc = iwl_send_statistics_request(priv, 0);
+ mutex_unlock(&priv->mutex);
+
+ if (rc) {
+ len = sprintf(buf,
+ "Error sending statistics request: 0x%08X\n", rc);
+ return len;
+ }
+
+ while (size && (PAGE_SIZE - len)) {
+ hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
+ PAGE_SIZE - len, 1);
+ len = strlen(buf);
+ if (PAGE_SIZE - len)
+ buf[len++] = '\n';
+
+ ofs += 16;
+ size -= min(size, 16U);
+ }
+
+ return len;
+}
+
+static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
+
+static ssize_t show_status(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+ if (!iwl_is_alive(priv))
+ return -EAGAIN;
+ return sprintf(buf, "0x%08x\n", (int)priv->status);
+}
+
+static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
+
+/*****************************************************************************
+ *
+ * driver setup and teardown
+ *
+ *****************************************************************************/
+
+static void iwl_setup_deferred_work(struct iwl_priv *priv)
+{
+ priv->workqueue = create_workqueue(DRV_NAME);
+
+ init_waitqueue_head(&priv->wait_command_queue);
+
+ INIT_WORK(&priv->up, iwl4965_bg_up);
+ INIT_WORK(&priv->restart, iwl4965_bg_restart);
+ INIT_WORK(&priv->rx_replenish, iwl4965_bg_rx_replenish);
+ INIT_WORK(&priv->rf_kill, iwl4965_bg_rf_kill);
+ INIT_WORK(&priv->beacon_update, iwl4965_bg_beacon_update);
+ INIT_WORK(&priv->set_monitor, iwl4965_bg_set_monitor);
+ INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
+ INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start);
+ INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start);
+
+ /* FIXME : remove when resolved PENDING */
+ INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed);
+ iwl_setup_scan_deferred_work(priv);
+
+ if (priv->cfg->ops->lib->setup_deferred_work)
+ priv->cfg->ops->lib->setup_deferred_work(priv);
+
+ init_timer(&priv->statistics_periodic);
+ priv->statistics_periodic.data = (unsigned long)priv;
+ priv->statistics_periodic.function = iwl4965_bg_statistics_periodic;
+
+ tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
+ iwl4965_irq_tasklet, (unsigned long)priv);
+}
+
+static void iwl_cancel_deferred_work(struct iwl_priv *priv)
+{
+ if (priv->cfg->ops->lib->cancel_deferred_work)
+ priv->cfg->ops->lib->cancel_deferred_work(priv);
+
+ cancel_delayed_work_sync(&priv->init_alive_start);
+ cancel_delayed_work(&priv->scan_check);
+ cancel_delayed_work(&priv->alive_start);
+ cancel_work_sync(&priv->beacon_update);
+ del_timer_sync(&priv->statistics_periodic);
+}
+
+static struct attribute *iwl4965_sysfs_entries[] = {
+ &dev_attr_channels.attr,
+ &dev_attr_flags.attr,
+ &dev_attr_filter_flags.attr,
+#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
+ &dev_attr_measurement.attr,
+#endif
+ &dev_attr_power_level.attr,
+ &dev_attr_retry_rate.attr,
+ &dev_attr_statistics.attr,
+ &dev_attr_status.attr,
+ &dev_attr_temperature.attr,
+ &dev_attr_tx_power.attr,
+#ifdef CONFIG_IWLWIFI_DEBUG
+ &dev_attr_debug_level.attr,
+#endif
+ &dev_attr_version.attr,
+
+ NULL
+};
+
+static struct attribute_group iwl4965_attribute_group = {
+ .name = NULL, /* put in device directory */
+ .attrs = iwl4965_sysfs_entries,
+};
+
+static struct ieee80211_ops iwl4965_hw_ops = {
+ .tx = iwl4965_mac_tx,
+ .start = iwl4965_mac_start,
+ .stop = iwl4965_mac_stop,
+ .add_interface = iwl4965_mac_add_interface,
+ .remove_interface = iwl4965_mac_remove_interface,
+ .config = iwl4965_mac_config,
+ .config_interface = iwl4965_mac_config_interface,
+ .configure_filter = iwl4965_configure_filter,
+ .set_key = iwl4965_mac_set_key,
+ .update_tkip_key = iwl4965_mac_update_tkip_key,
+ .get_stats = iwl4965_mac_get_stats,
+ .get_tx_stats = iwl4965_mac_get_tx_stats,
+ .conf_tx = iwl4965_mac_conf_tx,
+ .reset_tsf = iwl4965_mac_reset_tsf,
+ .bss_info_changed = iwl4965_bss_info_changed,
+ .ampdu_action = iwl4965_mac_ampdu_action,
+ .hw_scan = iwl4965_mac_hw_scan
+};
+
+static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ int err = 0;
+ struct iwl_priv *priv;
+ struct ieee80211_hw *hw;
+ struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
+ unsigned long flags;
+ DECLARE_MAC_BUF(mac);
+
+ /************************
+ * 1. Allocating HW data
+ ************************/
+
+ /* Disabling hardware scan means that mac80211 will perform scans
+ * "the hard way", rather than using device's scan. */
+ if (cfg->mod_params->disable_hw_scan) {
+ if (cfg->mod_params->debug & IWL_DL_INFO)
+ dev_printk(KERN_DEBUG, &(pdev->dev),
+ "Disabling hw_scan\n");
+ iwl4965_hw_ops.hw_scan = NULL;
+ }
+
+ hw = iwl_alloc_all(cfg, &iwl4965_hw_ops);
+ if (!hw) {
+ err = -ENOMEM;
+ goto out;
+ }
+ priv = hw->priv;
+ /* At this point both hw and priv are allocated. */
+
+ SET_IEEE80211_DEV(hw, &pdev->dev);
+
+ IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
+ priv->cfg = cfg;
+ priv->pci_dev = pdev;
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+ priv->debug_level = priv->cfg->mod_params->debug;
+ atomic_set(&priv->restrict_refcnt, 0);
+#endif
+
+ /**************************
+ * 2. Initializing PCI bus
+ **************************/
+ if (pci_enable_device(pdev)) {
+ err = -ENODEV;
+ goto out_ieee80211_free_hw;
+ }
+
+ pci_set_master(pdev);
+
+ err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
+ if (!err)
+ err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
+ if (err) {
+ err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ if (!err)
+ err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+ /* both attempts failed: */
+ if (err) {
+ printk(KERN_WARNING "%s: No suitable DMA available.\n",
+ DRV_NAME);
+ goto out_pci_disable_device;
+ }
+ }
+
+ err = pci_request_regions(pdev, DRV_NAME);
+ if (err)
+ goto out_pci_disable_device;
+
+ pci_set_drvdata(pdev, priv);
+
+ /* We disable the RETRY_TIMEOUT register (0x41) to keep
+ * PCI Tx retries from interfering with C3 CPU state */
+ pci_write_config_byte(pdev, 0x41, 0x00);
+
+ /***********************
+ * 3. Read REV register
+ ***********************/
+ priv->hw_base = pci_iomap(pdev, 0, 0);
+ if (!priv->hw_base) {
+ err = -ENODEV;
+ goto out_pci_release_regions;
+ }
+
+ IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
+ (unsigned long long) pci_resource_len(pdev, 0));
+ IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base);
+
+ iwl_hw_detect(priv);
+ printk(KERN_INFO DRV_NAME
+ ": Detected Intel Wireless WiFi Link %s REV=0x%X\n",
+ priv->cfg->name, priv->hw_rev);
+
+ /* amp init */
+ err = priv->cfg->ops->lib->apm_ops.init(priv);
+ if (err < 0) {
+ IWL_DEBUG_INFO("Failed to init APMG\n");
+ goto out_iounmap;
+ }
+ /*****************
+ * 4. Read EEPROM
+ *****************/
+ /* Read the EEPROM */
+ err = iwl_eeprom_init(priv);
+ if (err) {
+ IWL_ERROR("Unable to init EEPROM\n");
+ goto out_iounmap;
+ }
+ err = iwl_eeprom_check_version(priv);
+ if (err)
+ goto out_iounmap;
+
+ /* extract MAC Address */
+ iwl_eeprom_get_mac(priv, priv->mac_addr);
+ IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac, priv->mac_addr));
+ SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
+
+ /************************
+ * 5. Setup HW constants
+ ************************/
+ if (iwl_set_hw_params(priv)) {
+ IWL_ERROR("failed to set hw parameters\n");
+ goto out_free_eeprom;
+ }
+
+ /*******************
+ * 6. Setup priv
+ *******************/
+
+ err = iwl_init_drv(priv);
+ if (err)
+ goto out_free_eeprom;
+ /* At this point both hw and priv are initialized. */
+
+ /**********************************
+ * 7. Initialize module parameters
+ **********************************/
+
+ /* Disable radio (SW RF KILL) via parameter when loading driver */
+ if (priv->cfg->mod_params->disable) {
+ set_bit(STATUS_RF_KILL_SW, &priv->status);
+ IWL_DEBUG_INFO("Radio disabled.\n");
+ }
+
+ /********************
+ * 8. Setup services
+ ********************/
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl4965_disable_interrupts(priv);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ err = sysfs_create_group(&pdev->dev.kobj, &iwl4965_attribute_group);
+ if (err) {
+ IWL_ERROR("failed to create sysfs device attributes\n");
+ goto out_uninit_drv;
+ }
+
+
+ iwl_setup_deferred_work(priv);
+ iwl_setup_rx_handlers(priv);
+
+ /********************
+ * 9. Conclude
+ ********************/
+ pci_save_state(pdev);
+ pci_disable_device(pdev);
+
+ /**********************************
+ * 10. Setup and register mac80211
+ **********************************/
+
+ err = iwl_setup_mac(priv);
+ if (err)
+ goto out_remove_sysfs;
+
+ err = iwl_dbgfs_register(priv, DRV_NAME);
+ if (err)
+ IWL_ERROR("failed to create debugfs files\n");
+
+ err = iwl_rfkill_init(priv);
+ if (err)
+ IWL_ERROR("Unable to initialize RFKILL system. "
+ "Ignoring error: %d\n", err);
+ iwl_power_initialize(priv);
+ return 0;
+
+ out_remove_sysfs:
+ sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
+ out_uninit_drv:
+ iwl_uninit_drv(priv);
+ out_free_eeprom:
+ iwl_eeprom_free(priv);
+ out_iounmap:
+ pci_iounmap(pdev, priv->hw_base);
+ out_pci_release_regions:
+ pci_release_regions(pdev);
+ pci_set_drvdata(pdev, NULL);
+ out_pci_disable_device:
+ pci_disable_device(pdev);
+ out_ieee80211_free_hw:
+ ieee80211_free_hw(priv->hw);
+ out:
+ return err;
+}
+
+static void __devexit iwl4965_pci_remove(struct pci_dev *pdev)
+{
+ struct iwl_priv *priv = pci_get_drvdata(pdev);
+ unsigned long flags;
+
+ if (!priv)
+ return;
+
+ IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
+
+ iwl_dbgfs_unregister(priv);
+ sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
+
+ if (priv->mac80211_registered) {
+ ieee80211_unregister_hw(priv->hw);
+ priv->mac80211_registered = 0;
+ }
+
+ set_bit(STATUS_EXIT_PENDING, &priv->status);
+
+ iwl4965_down(priv);
+
+ /* make sure we flush any pending irq or
+ * tasklet for the driver
+ */
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl4965_disable_interrupts(priv);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ iwl_synchronize_irq(priv);
+
+ iwl_rfkill_unregister(priv);
+ iwl4965_dealloc_ucode_pci(priv);
+
+ if (priv->rxq.bd)
+ iwl_rx_queue_free(priv, &priv->rxq);
+ iwl_hw_txq_ctx_free(priv);
+
+ iwl_clear_stations_table(priv);
+ iwl_eeprom_free(priv);
+
+
+ /*netif_stop_queue(dev); */
+ flush_workqueue(priv->workqueue);
+
+ /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes
+ * priv->workqueue... so we can't take down the workqueue
+ * until now... */
+ destroy_workqueue(priv->workqueue);
+ priv->workqueue = NULL;
+
+ pci_iounmap(pdev, priv->hw_base);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+
+ iwl_uninit_drv(priv);
+
+ if (priv->ibss_beacon)
+ dev_kfree_skb(priv->ibss_beacon);
+
+ ieee80211_free_hw(priv->hw);
+}
+
+#ifdef CONFIG_PM
+
+static int iwl4965_pci_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct iwl_priv *priv = pci_get_drvdata(pdev);
+
+ if (priv->is_open) {
+ set_bit(STATUS_IN_SUSPEND, &priv->status);
+ iwl4965_mac_stop(priv->hw);
+ priv->is_open = 1;
+ }
+
+ pci_set_power_state(pdev, PCI_D3hot);
+
+ return 0;
+}
+
+static int iwl4965_pci_resume(struct pci_dev *pdev)
+{
+ struct iwl_priv *priv = pci_get_drvdata(pdev);
+
+ pci_set_power_state(pdev, PCI_D0);
+
+ if (priv->is_open)
+ iwl4965_mac_start(priv->hw);
+
+ clear_bit(STATUS_IN_SUSPEND, &priv->status);
+ return 0;
+}
+
+#endif /* CONFIG_PM */
+
+/*****************************************************************************
+ *
+ * driver and module entry point
+ *
+ *****************************************************************************/
+
+/* Hardware specific file defines the PCI IDs table for that hardware module */
+static struct pci_device_id iwl_hw_card_ids[] = {
+ {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)},
+ {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)},
+#ifdef CONFIG_IWL5000
+ {IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bg_cfg)},
+ {IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bg_cfg)},
+ {IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg)},
+ {IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg)},
+ {IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg)},
+ {IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg)},
+ {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID, iwl5100_agn_cfg)},
+ {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID, iwl5300_agn_cfg)},
+ {IWL_PCI_DEVICE(0x4236, PCI_ANY_ID, iwl5300_agn_cfg)},
+ {IWL_PCI_DEVICE(0x4237, PCI_ANY_ID, iwl5100_agn_cfg)},
+ {IWL_PCI_DEVICE(0x423A, PCI_ANY_ID, iwl5350_agn_cfg)},
+#endif /* CONFIG_IWL5000 */
+ {0}
+};
+MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);
+
+static struct pci_driver iwl_driver = {
+ .name = DRV_NAME,
+ .id_table = iwl_hw_card_ids,
+ .probe = iwl4965_pci_probe,
+ .remove = __devexit_p(iwl4965_pci_remove),
+#ifdef CONFIG_PM
+ .suspend = iwl4965_pci_suspend,
+ .resume = iwl4965_pci_resume,
+#endif
+};
+
+static int __init iwl4965_init(void)
+{
+
+ int ret;
+ printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
+ printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
+
+ ret = iwlagn_rate_control_register();
+ if (ret) {
+ IWL_ERROR("Unable to register rate control algorithm: %d\n", ret);
+ return ret;
+ }
+
+ ret = pci_register_driver(&iwl_driver);
+ if (ret) {
+ IWL_ERROR("Unable to initialize PCI module\n");
+ goto error_register;
+ }
+
+ return ret;
+
+error_register:
+ iwlagn_rate_control_unregister();
+ return ret;
+}
+
+static void __exit iwl4965_exit(void)
+{
+ pci_unregister_driver(&iwl_driver);
+ iwlagn_rate_control_unregister();
+}
+
+module_exit(iwl4965_exit);
+module_init(iwl4965_init);
+++ /dev/null
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
- *
- * Portions of this file are derived from the ipw3945 project, as well
- * as portions of the ieee80211 subsystem header files.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * James P. Ketrenos <ipw2100-admin@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/version.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/delay.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/wireless.h>
-#include <linux/firmware.h>
-#include <linux/etherdevice.h>
-#include <linux/if_arp.h>
-
-#include <net/mac80211.h>
-
-#include <asm/div64.h>
-
-#include "iwl-eeprom.h"
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-io.h"
-#include "iwl-helpers.h"
-#include "iwl-sta.h"
-#include "iwl-calib.h"
-
-
-/******************************************************************************
- *
- * module boiler plate
- *
- ******************************************************************************/
-
-/*
- * module name, copyright, version, etc.
- * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
- */
-
-#define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
-
-#ifdef CONFIG_IWLWIFI_DEBUG
-#define VD "d"
-#else
-#define VD
-#endif
-
-#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
-#define VS "s"
-#else
-#define VS
-#endif
-
-#define DRV_VERSION IWLWIFI_VERSION VD VS
-
-
-MODULE_DESCRIPTION(DRV_DESCRIPTION);
-MODULE_VERSION(DRV_VERSION);
-MODULE_AUTHOR(DRV_COPYRIGHT);
-MODULE_LICENSE("GPL");
-
-/*************** STATION TABLE MANAGEMENT ****
- * mac80211 should be examined to determine if sta_info is duplicating
- * the functionality provided here
- */
-
-/**************************************************************/
-
-
-
-static void iwl4965_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt)
-{
- struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
-
- if (hw_decrypt)
- rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
- else
- rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
-
-}
-
-/**
- * iwl4965_check_rxon_cmd - validate RXON structure is valid
- *
- * NOTE: This is really only useful during development and can eventually
- * be #ifdef'd out once the driver is stable and folks aren't actively
- * making changes
- */
-static int iwl4965_check_rxon_cmd(struct iwl_rxon_cmd *rxon)
-{
- int error = 0;
- int counter = 1;
-
- if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
- error |= le32_to_cpu(rxon->flags &
- (RXON_FLG_TGJ_NARROW_BAND_MSK |
- RXON_FLG_RADAR_DETECT_MSK));
- if (error)
- IWL_WARNING("check 24G fields %d | %d\n",
- counter++, error);
- } else {
- error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ?
- 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK);
- if (error)
- IWL_WARNING("check 52 fields %d | %d\n",
- counter++, error);
- error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK);
- if (error)
- IWL_WARNING("check 52 CCK %d | %d\n",
- counter++, error);
- }
- error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1;
- if (error)
- IWL_WARNING("check mac addr %d | %d\n", counter++, error);
-
- /* make sure basic rates 6Mbps and 1Mbps are supported */
- error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) &&
- ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0));
- if (error)
- IWL_WARNING("check basic rate %d | %d\n", counter++, error);
-
- error |= (le16_to_cpu(rxon->assoc_id) > 2007);
- if (error)
- IWL_WARNING("check assoc id %d | %d\n", counter++, error);
-
- error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
- == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK));
- if (error)
- IWL_WARNING("check CCK and short slot %d | %d\n",
- counter++, error);
-
- error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
- == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK));
- if (error)
- IWL_WARNING("check CCK & auto detect %d | %d\n",
- counter++, error);
-
- error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
- RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK);
- if (error)
- IWL_WARNING("check TGG and auto detect %d | %d\n",
- counter++, error);
-
- if (error)
- IWL_WARNING("Tuning to channel %d\n",
- le16_to_cpu(rxon->channel));
-
- if (error) {
- IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n");
- return -1;
- }
- return 0;
-}
-
-/**
- * iwl4965_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
- * @priv: staging_rxon is compared to active_rxon
- *
- * If the RXON structure is changing enough to require a new tune,
- * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
- * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
- */
-static int iwl4965_full_rxon_required(struct iwl_priv *priv)
-{
-
- /* These items are only settable from the full RXON command */
- if (!(iwl_is_associated(priv)) ||
- compare_ether_addr(priv->staging_rxon.bssid_addr,
- priv->active_rxon.bssid_addr) ||
- compare_ether_addr(priv->staging_rxon.node_addr,
- priv->active_rxon.node_addr) ||
- compare_ether_addr(priv->staging_rxon.wlap_bssid_addr,
- priv->active_rxon.wlap_bssid_addr) ||
- (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) ||
- (priv->staging_rxon.channel != priv->active_rxon.channel) ||
- (priv->staging_rxon.air_propagation !=
- priv->active_rxon.air_propagation) ||
- (priv->staging_rxon.ofdm_ht_single_stream_basic_rates !=
- priv->active_rxon.ofdm_ht_single_stream_basic_rates) ||
- (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates !=
- priv->active_rxon.ofdm_ht_dual_stream_basic_rates) ||
- (priv->staging_rxon.rx_chain != priv->active_rxon.rx_chain) ||
- (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id))
- return 1;
-
- /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
- * be updated with the RXON_ASSOC command -- however only some
- * flag transitions are allowed using RXON_ASSOC */
-
- /* Check if we are not switching bands */
- if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) !=
- (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK))
- return 1;
-
- /* Check if we are switching association toggle */
- if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) !=
- (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK))
- return 1;
-
- return 0;
-}
-
-/**
- * iwl4965_commit_rxon - commit staging_rxon to hardware
- *
- * The RXON command in staging_rxon is committed to the hardware and
- * the active_rxon structure is updated with the new data. This
- * function correctly transitions out of the RXON_ASSOC_MSK state if
- * a HW tune is required based on the RXON structure changes.
- */
-static int iwl4965_commit_rxon(struct iwl_priv *priv)
-{
- /* cast away the const for active_rxon in this function */
- struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon;
- DECLARE_MAC_BUF(mac);
- int ret;
- bool new_assoc =
- !!(priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK);
-
- if (!iwl_is_alive(priv))
- return -EBUSY;
-
- /* always get timestamp with Rx frame */
- priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK;
- /* allow CTS-to-self if possible. this is relevant only for
- * 5000, but will not damage 4965 */
- priv->staging_rxon.flags |= RXON_FLG_SELF_CTS_EN;
-
- ret = iwl4965_check_rxon_cmd(&priv->staging_rxon);
- if (ret) {
- IWL_ERROR("Invalid RXON configuration. Not committing.\n");
- return -EINVAL;
- }
-
- /* If we don't need to send a full RXON, we can use
- * iwl4965_rxon_assoc_cmd which is used to reconfigure filter
- * and other flags for the current radio configuration. */
- if (!iwl4965_full_rxon_required(priv)) {
- ret = iwl_send_rxon_assoc(priv);
- if (ret) {
- IWL_ERROR("Error setting RXON_ASSOC (%d)\n", ret);
- return ret;
- }
-
- memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
- return 0;
- }
-
- /* station table will be cleared */
- priv->assoc_station_added = 0;
-
- /* If we are currently associated and the new config requires
- * an RXON_ASSOC and the new config wants the associated mask enabled,
- * we must clear the associated from the active configuration
- * before we apply the new config */
- if (iwl_is_associated(priv) && new_assoc) {
- IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
- active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
-
- ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
- sizeof(struct iwl_rxon_cmd),
- &priv->active_rxon);
-
- /* If the mask clearing failed then we set
- * active_rxon back to what it was previously */
- if (ret) {
- active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
- IWL_ERROR("Error clearing ASSOC_MSK (%d)\n", ret);
- return ret;
- }
- }
-
- IWL_DEBUG_INFO("Sending RXON\n"
- "* with%s RXON_FILTER_ASSOC_MSK\n"
- "* channel = %d\n"
- "* bssid = %s\n",
- (new_assoc ? "" : "out"),
- le16_to_cpu(priv->staging_rxon.channel),
- print_mac(mac, priv->staging_rxon.bssid_addr));
-
- iwl4965_set_rxon_hwcrypto(priv, !priv->hw_params.sw_crypto);
-
- /* Apply the new configuration
- * RXON unassoc clears the station table in uCode, send it before
- * we add the bcast station. If assoc bit is set, we will send RXON
- * after having added the bcast and bssid station.
- */
- if (!new_assoc) {
- ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
- sizeof(struct iwl_rxon_cmd), &priv->staging_rxon);
- if (ret) {
- IWL_ERROR("Error setting new RXON (%d)\n", ret);
- return ret;
- }
- memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
- }
-
- iwl_clear_stations_table(priv);
-
- if (!priv->error_recovering)
- priv->start_calib = 0;
-
- /* Add the broadcast address so we can send broadcast frames */
- if (iwl_rxon_add_station(priv, iwl_bcast_addr, 0) ==
- IWL_INVALID_STATION) {
- IWL_ERROR("Error adding BROADCAST address for transmit.\n");
- return -EIO;
- }
-
- /* If we have set the ASSOC_MSK and we are in BSS mode then
- * add the IWL_AP_ID to the station rate table */
- if (new_assoc) {
- if (priv->iw_mode == IEEE80211_IF_TYPE_STA) {
- ret = iwl_rxon_add_station(priv,
- priv->active_rxon.bssid_addr, 1);
- if (ret == IWL_INVALID_STATION) {
- IWL_ERROR("Error adding AP address for TX.\n");
- return -EIO;
- }
- priv->assoc_station_added = 1;
- if (priv->default_wep_key &&
- iwl_send_static_wepkey_cmd(priv, 0))
- IWL_ERROR("Could not send WEP static key.\n");
- }
-
- /* Apply the new configuration
- * RXON assoc doesn't clear the station table in uCode,
- */
- ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
- sizeof(struct iwl_rxon_cmd), &priv->staging_rxon);
- if (ret) {
- IWL_ERROR("Error setting new RXON (%d)\n", ret);
- return ret;
- }
- memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
- }
-
- iwl_init_sensitivity(priv);
-
- /* If we issue a new RXON command which required a tune then we must
- * send a new TXPOWER command or we won't be able to Tx any frames */
- ret = iwl_set_tx_power(priv, priv->tx_power_user_lmt, true);
- if (ret) {
- IWL_ERROR("Error sending TX power (%d)\n", ret);
- return ret;
- }
-
- return 0;
-}
-
-void iwl4965_update_chain_flags(struct iwl_priv *priv)
-{
-
- iwl_set_rxon_chain(priv);
- iwl4965_commit_rxon(priv);
-}
-
-static int iwl4965_send_bt_config(struct iwl_priv *priv)
-{
- struct iwl4965_bt_cmd bt_cmd = {
- .flags = 3,
- .lead_time = 0xAA,
- .max_kill = 1,
- .kill_ack_mask = 0,
- .kill_cts_mask = 0,
- };
-
- return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG,
- sizeof(struct iwl4965_bt_cmd), &bt_cmd);
-}
-
-static void iwl_clear_free_frames(struct iwl_priv *priv)
-{
- struct list_head *element;
-
- IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
- priv->frames_count);
-
- while (!list_empty(&priv->free_frames)) {
- element = priv->free_frames.next;
- list_del(element);
- kfree(list_entry(element, struct iwl_frame, list));
- priv->frames_count--;
- }
-
- if (priv->frames_count) {
- IWL_WARNING("%d frames still in use. Did we lose one?\n",
- priv->frames_count);
- priv->frames_count = 0;
- }
-}
-
-static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv)
-{
- struct iwl_frame *frame;
- struct list_head *element;
- if (list_empty(&priv->free_frames)) {
- frame = kzalloc(sizeof(*frame), GFP_KERNEL);
- if (!frame) {
- IWL_ERROR("Could not allocate frame!\n");
- return NULL;
- }
-
- priv->frames_count++;
- return frame;
- }
-
- element = priv->free_frames.next;
- list_del(element);
- return list_entry(element, struct iwl_frame, list);
-}
-
-static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame)
-{
- memset(frame, 0, sizeof(*frame));
- list_add(&frame->list, &priv->free_frames);
-}
-
-static unsigned int iwl_fill_beacon_frame(struct iwl_priv *priv,
- struct ieee80211_hdr *hdr,
- const u8 *dest, int left)
-{
- if (!iwl_is_associated(priv) || !priv->ibss_beacon ||
- ((priv->iw_mode != IEEE80211_IF_TYPE_IBSS) &&
- (priv->iw_mode != IEEE80211_IF_TYPE_AP)))
- return 0;
-
- if (priv->ibss_beacon->len > left)
- return 0;
-
- memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
-
- return priv->ibss_beacon->len;
-}
-
-static u8 iwl4965_rate_get_lowest_plcp(struct iwl_priv *priv)
-{
- int i;
- int rate_mask;
-
- /* Set rate mask*/
- if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
- rate_mask = priv->active_rate_basic & 0xF;
- else
- rate_mask = priv->active_rate_basic & 0xFF0;
-
- /* Find lowest valid rate */
- for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
- i = iwl_rates[i].next_ieee) {
- if (rate_mask & (1 << i))
- return iwl_rates[i].plcp;
- }
-
- /* No valid rate was found. Assign the lowest one */
- if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
- return IWL_RATE_1M_PLCP;
- else
- return IWL_RATE_6M_PLCP;
-}
-
-unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
- struct iwl_frame *frame, u8 rate)
-{
- struct iwl_tx_beacon_cmd *tx_beacon_cmd;
- unsigned int frame_size;
-
- tx_beacon_cmd = &frame->u.beacon;
- memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));
-
- tx_beacon_cmd->tx.sta_id = priv->hw_params.bcast_sta_id;
- tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
-
- frame_size = iwl_fill_beacon_frame(priv, tx_beacon_cmd->frame,
- iwl_bcast_addr,
- sizeof(frame->u) - sizeof(*tx_beacon_cmd));
-
- BUG_ON(frame_size > MAX_MPDU_SIZE);
- tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
-
- if ((rate == IWL_RATE_1M_PLCP) || (rate >= IWL_RATE_2M_PLCP))
- tx_beacon_cmd->tx.rate_n_flags =
- iwl_hw_set_rate_n_flags(rate, RATE_MCS_CCK_MSK);
- else
- tx_beacon_cmd->tx.rate_n_flags =
- iwl_hw_set_rate_n_flags(rate, 0);
-
- tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK |
- TX_CMD_FLG_TSF_MSK |
- TX_CMD_FLG_STA_RATE_MSK;
-
- return sizeof(*tx_beacon_cmd) + frame_size;
-}
-static int iwl4965_send_beacon_cmd(struct iwl_priv *priv)
-{
- struct iwl_frame *frame;
- unsigned int frame_size;
- int rc;
- u8 rate;
-
- frame = iwl_get_free_frame(priv);
-
- if (!frame) {
- IWL_ERROR("Could not obtain free frame buffer for beacon "
- "command.\n");
- return -ENOMEM;
- }
-
- rate = iwl4965_rate_get_lowest_plcp(priv);
-
- frame_size = iwl4965_hw_get_beacon_cmd(priv, frame, rate);
-
- rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
- &frame->u.cmd[0]);
-
- iwl_free_frame(priv, frame);
-
- return rc;
-}
-
-/******************************************************************************
- *
- * Misc. internal state and helper functions
- *
- ******************************************************************************/
-
-static void iwl4965_ht_conf(struct iwl_priv *priv,
- struct ieee80211_bss_conf *bss_conf)
-{
- struct ieee80211_ht_info *ht_conf = bss_conf->ht_conf;
- struct ieee80211_ht_bss_info *ht_bss_conf = bss_conf->ht_bss_conf;
- struct iwl_ht_info *iwl_conf = &priv->current_ht_config;
-
- IWL_DEBUG_MAC80211("enter: \n");
-
- iwl_conf->is_ht = bss_conf->assoc_ht;
-
- if (!iwl_conf->is_ht)
- return;
-
- priv->ps_mode = (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
-
- if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20)
- iwl_conf->sgf |= HT_SHORT_GI_20MHZ;
- if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40)
- iwl_conf->sgf |= HT_SHORT_GI_40MHZ;
-
- iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD);
- iwl_conf->max_amsdu_size =
- !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU);
-
- iwl_conf->supported_chan_width =
- !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH);
- iwl_conf->extension_chan_offset =
- ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_SEC_OFFSET;
- /* If no above or below channel supplied disable FAT channel */
- if (iwl_conf->extension_chan_offset != IEEE80211_HT_IE_CHA_SEC_ABOVE &&
- iwl_conf->extension_chan_offset != IEEE80211_HT_IE_CHA_SEC_BELOW) {
- iwl_conf->extension_chan_offset = IEEE80211_HT_IE_CHA_SEC_NONE;
- iwl_conf->supported_chan_width = 0;
- }
-
- iwl_conf->tx_mimo_ps_mode =
- (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
- memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16);
-
- iwl_conf->control_channel = ht_bss_conf->primary_channel;
- iwl_conf->tx_chan_width =
- !!(ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_WIDTH);
- iwl_conf->ht_protection =
- ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_HT_PROTECTION;
- iwl_conf->non_GF_STA_present =
- !!(ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_NON_GF_STA_PRSNT);
-
- IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf->control_channel);
- IWL_DEBUG_MAC80211("leave\n");
-}
-
-/*
- * QoS support
-*/
-static void iwl_activate_qos(struct iwl_priv *priv, u8 force)
-{
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- if (!priv->qos_data.qos_enable)
- return;
-
- priv->qos_data.def_qos_parm.qos_flags = 0;
-
- if (priv->qos_data.qos_cap.q_AP.queue_request &&
- !priv->qos_data.qos_cap.q_AP.txop_request)
- priv->qos_data.def_qos_parm.qos_flags |=
- QOS_PARAM_FLG_TXOP_TYPE_MSK;
- if (priv->qos_data.qos_active)
- priv->qos_data.def_qos_parm.qos_flags |=
- QOS_PARAM_FLG_UPDATE_EDCA_MSK;
-
- if (priv->current_ht_config.is_ht)
- priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
-
- if (force || iwl_is_associated(priv)) {
- IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n",
- priv->qos_data.qos_active,
- priv->qos_data.def_qos_parm.qos_flags);
-
- iwl_send_cmd_pdu_async(priv, REPLY_QOS_PARAM,
- sizeof(struct iwl_qosparam_cmd),
- &priv->qos_data.def_qos_parm, NULL);
- }
-}
-
-#define MAX_UCODE_BEACON_INTERVAL 4096
-
-static __le16 iwl4965_adjust_beacon_interval(u16 beacon_val)
-{
- u16 new_val = 0;
- u16 beacon_factor = 0;
-
- beacon_factor =
- (beacon_val + MAX_UCODE_BEACON_INTERVAL)
- / MAX_UCODE_BEACON_INTERVAL;
- new_val = beacon_val / beacon_factor;
-
- return cpu_to_le16(new_val);
-}
-
-static void iwl4965_setup_rxon_timing(struct iwl_priv *priv)
-{
- u64 interval_tm_unit;
- u64 tsf, result;
- unsigned long flags;
- struct ieee80211_conf *conf = NULL;
- u16 beacon_int = 0;
-
- conf = ieee80211_get_hw_conf(priv->hw);
-
- spin_lock_irqsave(&priv->lock, flags);
- priv->rxon_timing.timestamp.dw[1] = cpu_to_le32(priv->timestamp >> 32);
- priv->rxon_timing.timestamp.dw[0] =
- cpu_to_le32(priv->timestamp & 0xFFFFFFFF);
-
- priv->rxon_timing.listen_interval = cpu_to_le16(conf->listen_interval);
-
- tsf = priv->timestamp;
-
- beacon_int = priv->beacon_int;
- spin_unlock_irqrestore(&priv->lock, flags);
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_STA) {
- if (beacon_int == 0) {
- priv->rxon_timing.beacon_interval = cpu_to_le16(100);
- priv->rxon_timing.beacon_init_val = cpu_to_le32(102400);
- } else {
- priv->rxon_timing.beacon_interval =
- cpu_to_le16(beacon_int);
- priv->rxon_timing.beacon_interval =
- iwl4965_adjust_beacon_interval(
- le16_to_cpu(priv->rxon_timing.beacon_interval));
- }
-
- priv->rxon_timing.atim_window = 0;
- } else {
- priv->rxon_timing.beacon_interval =
- iwl4965_adjust_beacon_interval(conf->beacon_int);
- /* TODO: we need to get atim_window from upper stack
- * for now we set to 0 */
- priv->rxon_timing.atim_window = 0;
- }
-
- interval_tm_unit =
- (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024);
- result = do_div(tsf, interval_tm_unit);
- priv->rxon_timing.beacon_init_val =
- cpu_to_le32((u32) ((u64) interval_tm_unit - result));
-
- IWL_DEBUG_ASSOC
- ("beacon interval %d beacon timer %d beacon tim %d\n",
- le16_to_cpu(priv->rxon_timing.beacon_interval),
- le32_to_cpu(priv->rxon_timing.beacon_init_val),
- le16_to_cpu(priv->rxon_timing.atim_window));
-}
-
-static void iwl_set_flags_for_band(struct iwl_priv *priv,
- enum ieee80211_band band)
-{
- if (band == IEEE80211_BAND_5GHZ) {
- priv->staging_rxon.flags &=
- ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
- | RXON_FLG_CCK_MSK);
- priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
- } else {
- /* Copied from iwl4965_post_associate() */
- if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
- priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
- else
- priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
- priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
-
- priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
- priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK;
- priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK;
- }
-}
-
-/*
- * initialize rxon structure with default values from eeprom
- */
-static void iwl4965_connection_init_rx_config(struct iwl_priv *priv)
-{
- const struct iwl_channel_info *ch_info;
-
- memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon));
-
- switch (priv->iw_mode) {
- case IEEE80211_IF_TYPE_AP:
- priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP;
- break;
-
- case IEEE80211_IF_TYPE_STA:
- priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS;
- priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
- break;
-
- case IEEE80211_IF_TYPE_IBSS:
- priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS;
- priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
- priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
- RXON_FILTER_ACCEPT_GRP_MSK;
- break;
-
- case IEEE80211_IF_TYPE_MNTR:
- priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER;
- priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK |
- RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK;
- break;
- default:
- IWL_ERROR("Unsupported interface type %d\n", priv->iw_mode);
- break;
- }
-
-#if 0
- /* TODO: Figure out when short_preamble would be set and cache from
- * that */
- if (!hw_to_local(priv->hw)->short_preamble)
- priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
- else
- priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
-#endif
-
- ch_info = iwl_get_channel_info(priv, priv->band,
- le16_to_cpu(priv->active_rxon.channel));
-
- if (!ch_info)
- ch_info = &priv->channel_info[0];
-
- /*
- * in some case A channels are all non IBSS
- * in this case force B/G channel
- */
- if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) &&
- !(is_channel_ibss(ch_info)))
- ch_info = &priv->channel_info[0];
-
- priv->staging_rxon.channel = cpu_to_le16(ch_info->channel);
- priv->band = ch_info->band;
-
- iwl_set_flags_for_band(priv, priv->band);
-
- priv->staging_rxon.ofdm_basic_rates =
- (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
- priv->staging_rxon.cck_basic_rates =
- (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
-
- priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK |
- RXON_FLG_CHANNEL_MODE_PURE_40_MSK);
- memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
- memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN);
- priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff;
- priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff;
- iwl_set_rxon_chain(priv);
-}
-
-static int iwl4965_set_mode(struct iwl_priv *priv, int mode)
-{
- priv->iw_mode = mode;
-
- iwl4965_connection_init_rx_config(priv);
- memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
-
- iwl_clear_stations_table(priv);
-
- /* dont commit rxon if rf-kill is on*/
- if (!iwl_is_ready_rf(priv))
- return -EAGAIN;
-
- cancel_delayed_work(&priv->scan_check);
- if (iwl_scan_cancel_timeout(priv, 100)) {
- IWL_WARNING("Aborted scan still in progress after 100ms\n");
- IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
- return -EAGAIN;
- }
-
- iwl4965_commit_rxon(priv);
-
- return 0;
-}
-
-static void iwl4965_set_rate(struct iwl_priv *priv)
-{
- const struct ieee80211_supported_band *hw = NULL;
- struct ieee80211_rate *rate;
- int i;
-
- hw = iwl_get_hw_mode(priv, priv->band);
- if (!hw) {
- IWL_ERROR("Failed to set rate: unable to get hw mode\n");
- return;
- }
-
- priv->active_rate = 0;
- priv->active_rate_basic = 0;
-
- for (i = 0; i < hw->n_bitrates; i++) {
- rate = &(hw->bitrates[i]);
- if (rate->hw_value < IWL_RATE_COUNT)
- priv->active_rate |= (1 << rate->hw_value);
- }
-
- IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
- priv->active_rate, priv->active_rate_basic);
-
- /*
- * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
- * otherwise set it to the default of all CCK rates and 6, 12, 24 for
- * OFDM
- */
- if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK)
- priv->staging_rxon.cck_basic_rates =
- ((priv->active_rate_basic &
- IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF;
- else
- priv->staging_rxon.cck_basic_rates =
- (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
-
- if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK)
- priv->staging_rxon.ofdm_basic_rates =
- ((priv->active_rate_basic &
- (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >>
- IWL_FIRST_OFDM_RATE) & 0xFF;
- else
- priv->staging_rxon.ofdm_basic_rates =
- (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
-}
-
-#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
-
-#include "iwl-spectrum.h"
-
-#define BEACON_TIME_MASK_LOW 0x00FFFFFF
-#define BEACON_TIME_MASK_HIGH 0xFF000000
-#define TIME_UNIT 1024
-
-/*
- * extended beacon time format
- * time in usec will be changed into a 32-bit value in 8:24 format
- * the high 1 byte is the beacon counts
- * the lower 3 bytes is the time in usec within one beacon interval
- */
-
-static u32 iwl4965_usecs_to_beacons(u32 usec, u32 beacon_interval)
-{
- u32 quot;
- u32 rem;
- u32 interval = beacon_interval * 1024;
-
- if (!interval || !usec)
- return 0;
-
- quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24);
- rem = (usec % interval) & BEACON_TIME_MASK_LOW;
-
- return (quot << 24) + rem;
-}
-
-/* base is usually what we get from ucode with each received frame,
- * the same as HW timer counter counting down
- */
-
-static __le32 iwl4965_add_beacon_time(u32 base, u32 addon, u32 beacon_interval)
-{
- u32 base_low = base & BEACON_TIME_MASK_LOW;
- u32 addon_low = addon & BEACON_TIME_MASK_LOW;
- u32 interval = beacon_interval * TIME_UNIT;
- u32 res = (base & BEACON_TIME_MASK_HIGH) +
- (addon & BEACON_TIME_MASK_HIGH);
-
- if (base_low > addon_low)
- res += base_low - addon_low;
- else if (base_low < addon_low) {
- res += interval + base_low - addon_low;
- res += (1 << 24);
- } else
- res += (1 << 24);
-
- return cpu_to_le32(res);
-}
-
-static int iwl4965_get_measurement(struct iwl_priv *priv,
- struct ieee80211_measurement_params *params,
- u8 type)
-{
- struct iwl4965_spectrum_cmd spectrum;
- struct iwl_rx_packet *res;
- struct iwl_host_cmd cmd = {
- .id = REPLY_SPECTRUM_MEASUREMENT_CMD,
- .data = (void *)&spectrum,
- .meta.flags = CMD_WANT_SKB,
- };
- u32 add_time = le64_to_cpu(params->start_time);
- int rc;
- int spectrum_resp_status;
- int duration = le16_to_cpu(params->duration);
-
- if (iwl_is_associated(priv))
- add_time =
- iwl4965_usecs_to_beacons(
- le64_to_cpu(params->start_time) - priv->last_tsf,
- le16_to_cpu(priv->rxon_timing.beacon_interval));
-
- memset(&spectrum, 0, sizeof(spectrum));
-
- spectrum.channel_count = cpu_to_le16(1);
- spectrum.flags =
- RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
- spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
- cmd.len = sizeof(spectrum);
- spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len));
-
- if (iwl_is_associated(priv))
- spectrum.start_time =
- iwl4965_add_beacon_time(priv->last_beacon_time,
- add_time,
- le16_to_cpu(priv->rxon_timing.beacon_interval));
- else
- spectrum.start_time = 0;
-
- spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT);
- spectrum.channels[0].channel = params->channel;
- spectrum.channels[0].type = type;
- if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)
- spectrum.flags |= RXON_FLG_BAND_24G_MSK |
- RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK;
-
- rc = iwl_send_cmd_sync(priv, &cmd);
- if (rc)
- return rc;
-
- res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
- if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
- IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
- rc = -EIO;
- }
-
- spectrum_resp_status = le16_to_cpu(res->u.spectrum.status);
- switch (spectrum_resp_status) {
- case 0: /* Command will be handled */
- if (res->u.spectrum.id != 0xff) {
- IWL_DEBUG_INFO
- ("Replaced existing measurement: %d\n",
- res->u.spectrum.id);
- priv->measurement_status &= ~MEASUREMENT_READY;
- }
- priv->measurement_status |= MEASUREMENT_ACTIVE;
- rc = 0;
- break;
-
- case 1: /* Command will not be handled */
- rc = -EAGAIN;
- break;
- }
-
- dev_kfree_skb_any(cmd.meta.u.skb);
-
- return rc;
-}
-#endif
-
-/******************************************************************************
- *
- * Generic RX handler implementations
- *
- ******************************************************************************/
-static void iwl_rx_reply_alive(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
- struct iwl_alive_resp *palive;
- struct delayed_work *pwork;
-
- palive = &pkt->u.alive_frame;
-
- IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
- "0x%01X 0x%01X\n",
- palive->is_valid, palive->ver_type,
- palive->ver_subtype);
-
- if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
- IWL_DEBUG_INFO("Initialization Alive received.\n");
- memcpy(&priv->card_alive_init,
- &pkt->u.alive_frame,
- sizeof(struct iwl_init_alive_resp));
- pwork = &priv->init_alive_start;
- } else {
- IWL_DEBUG_INFO("Runtime Alive received.\n");
- memcpy(&priv->card_alive, &pkt->u.alive_frame,
- sizeof(struct iwl_alive_resp));
- pwork = &priv->alive_start;
- }
-
- /* We delay the ALIVE response by 5ms to
- * give the HW RF Kill time to activate... */
- if (palive->is_valid == UCODE_VALID_OK)
- queue_delayed_work(priv->workqueue, pwork,
- msecs_to_jiffies(5));
- else
- IWL_WARNING("uCode did not respond OK.\n");
-}
-
-static void iwl4965_rx_reply_error(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
-
- IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
- "seq 0x%04X ser 0x%08X\n",
- le32_to_cpu(pkt->u.err_resp.error_type),
- get_cmd_string(pkt->u.err_resp.cmd_id),
- pkt->u.err_resp.cmd_id,
- le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
- le32_to_cpu(pkt->u.err_resp.error_info));
-}
-
-#define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
-
-static void iwl4965_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
- struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon;
- struct iwl4965_csa_notification *csa = &(pkt->u.csa_notif);
- IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
- le16_to_cpu(csa->channel), le32_to_cpu(csa->status));
- rxon->channel = csa->channel;
- priv->staging_rxon.channel = csa->channel;
-}
-
-static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
-#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
- struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
- struct iwl4965_spectrum_notification *report = &(pkt->u.spectrum_notif);
-
- if (!report->state) {
- IWL_DEBUG(IWL_DL_11H,
- "Spectrum Measure Notification: Start\n");
- return;
- }
-
- memcpy(&priv->measure_report, report, sizeof(*report));
- priv->measurement_status |= MEASUREMENT_READY;
-#endif
-}
-
-static void iwl4965_rx_pm_sleep_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
-#ifdef CONFIG_IWLWIFI_DEBUG
- struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
- struct iwl4965_sleep_notification *sleep = &(pkt->u.sleep_notif);
- IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
- sleep->pm_sleep_mode, sleep->pm_wakeup_src);
-#endif
-}
-
-static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
- IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
- "notification for %s:\n",
- le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
- iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len));
-}
-
-static void iwl4965_bg_beacon_update(struct work_struct *work)
-{
- struct iwl_priv *priv =
- container_of(work, struct iwl_priv, beacon_update);
- struct sk_buff *beacon;
-
- /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
- beacon = ieee80211_beacon_get(priv->hw, priv->vif);
-
- if (!beacon) {
- IWL_ERROR("update beacon failed\n");
- return;
- }
-
- mutex_lock(&priv->mutex);
- /* new beacon skb is allocated every time; dispose previous.*/
- if (priv->ibss_beacon)
- dev_kfree_skb(priv->ibss_beacon);
-
- priv->ibss_beacon = beacon;
- mutex_unlock(&priv->mutex);
-
- iwl4965_send_beacon_cmd(priv);
-}
-
-/**
- * iwl4965_bg_statistics_periodic - Timer callback to queue statistics
- *
- * This callback is provided in order to send a statistics request.
- *
- * This timer function is continually reset to execute within
- * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
- * was received. We need to ensure we receive the statistics in order
- * to update the temperature used for calibrating the TXPOWER.
- */
-static void iwl4965_bg_statistics_periodic(unsigned long data)
-{
- struct iwl_priv *priv = (struct iwl_priv *)data;
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- iwl_send_statistics_request(priv, CMD_ASYNC);
-}
-
-static void iwl4965_rx_beacon_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
-#ifdef CONFIG_IWLWIFI_DEBUG
- struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
- struct iwl4965_beacon_notif *beacon = &(pkt->u.beacon_status);
- u8 rate = iwl_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags);
-
- IWL_DEBUG_RX("beacon status %x retries %d iss %d "
- "tsf %d %d rate %d\n",
- le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK,
- beacon->beacon_notify_hdr.failure_frame,
- le32_to_cpu(beacon->ibss_mgr_status),
- le32_to_cpu(beacon->high_tsf),
- le32_to_cpu(beacon->low_tsf), rate);
-#endif
-
- if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
- (!test_bit(STATUS_EXIT_PENDING, &priv->status)))
- queue_work(priv->workqueue, &priv->beacon_update);
-}
-
-/* Handle notification from uCode that card's power state is changing
- * due to software, hardware, or critical temperature RFKILL */
-static void iwl4965_rx_card_state_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
- u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
- unsigned long status = priv->status;
-
- IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
- (flags & HW_CARD_DISABLED) ? "Kill" : "On",
- (flags & SW_CARD_DISABLED) ? "Kill" : "On");
-
- if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED |
- RF_CARD_DISABLED)) {
-
- iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
- CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
-
- if (!iwl_grab_nic_access(priv)) {
- iwl_write_direct32(
- priv, HBUS_TARG_MBX_C,
- HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
-
- iwl_release_nic_access(priv);
- }
-
- if (!(flags & RXON_CARD_DISABLED)) {
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
- CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
- if (!iwl_grab_nic_access(priv)) {
- iwl_write_direct32(
- priv, HBUS_TARG_MBX_C,
- HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
-
- iwl_release_nic_access(priv);
- }
- }
-
- if (flags & RF_CARD_DISABLED) {
- iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
- CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
- iwl_read32(priv, CSR_UCODE_DRV_GP1);
- if (!iwl_grab_nic_access(priv))
- iwl_release_nic_access(priv);
- }
- }
-
- if (flags & HW_CARD_DISABLED)
- set_bit(STATUS_RF_KILL_HW, &priv->status);
- else
- clear_bit(STATUS_RF_KILL_HW, &priv->status);
-
-
- if (flags & SW_CARD_DISABLED)
- set_bit(STATUS_RF_KILL_SW, &priv->status);
- else
- clear_bit(STATUS_RF_KILL_SW, &priv->status);
-
- if (!(flags & RXON_CARD_DISABLED))
- iwl_scan_cancel(priv);
-
- if ((test_bit(STATUS_RF_KILL_HW, &status) !=
- test_bit(STATUS_RF_KILL_HW, &priv->status)) ||
- (test_bit(STATUS_RF_KILL_SW, &status) !=
- test_bit(STATUS_RF_KILL_SW, &priv->status)))
- queue_work(priv->workqueue, &priv->rf_kill);
- else
- wake_up_interruptible(&priv->wait_command_queue);
-}
-
-int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src)
-{
- int ret;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lock, flags);
- ret = iwl_grab_nic_access(priv);
- if (ret)
- goto err;
-
- if (src == IWL_PWR_SRC_VAUX) {
- u32 val;
- ret = pci_read_config_dword(priv->pci_dev, PCI_POWER_SOURCE,
- &val);
-
- if (val & PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT)
- iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
- APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
- ~APMG_PS_CTRL_MSK_PWR_SRC);
- } else {
- iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
- APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
- ~APMG_PS_CTRL_MSK_PWR_SRC);
- }
-
- iwl_release_nic_access(priv);
-err:
- spin_unlock_irqrestore(&priv->lock, flags);
- return ret;
-}
-
-/**
- * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
- *
- * Setup the RX handlers for each of the reply types sent from the uCode
- * to the host.
- *
- * This function chains into the hardware specific files for them to setup
- * any hardware specific handlers as well.
- */
-static void iwl_setup_rx_handlers(struct iwl_priv *priv)
-{
- priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive;
- priv->rx_handlers[REPLY_ERROR] = iwl4965_rx_reply_error;
- priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl4965_rx_csa;
- priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] =
- iwl4965_rx_spectrum_measure_notif;
- priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl4965_rx_pm_sleep_notif;
- priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
- iwl4965_rx_pm_debug_statistics_notif;
- priv->rx_handlers[BEACON_NOTIFICATION] = iwl4965_rx_beacon_notif;
-
- /*
- * The same handler is used for both the REPLY to a discrete
- * statistics request from the host as well as for the periodic
- * statistics notifications (after received beacons) from the uCode.
- */
- priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl_rx_statistics;
- priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl_rx_statistics;
-
- iwl_setup_rx_scan_handlers(priv);
-
- /* status change handler */
- priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl4965_rx_card_state_notif;
-
- priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] =
- iwl_rx_missed_beacon_notif;
- /* Rx handlers */
- priv->rx_handlers[REPLY_RX_PHY_CMD] = iwl_rx_reply_rx_phy;
- priv->rx_handlers[REPLY_RX_MPDU_CMD] = iwl_rx_reply_rx;
- /* block ack */
- priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl_rx_reply_compressed_ba;
- /* Set up hardware specific Rx handlers */
- priv->cfg->ops->lib->rx_handler_setup(priv);
-}
-
-/*
- * this should be called while priv->lock is locked
-*/
-static void __iwl_rx_replenish(struct iwl_priv *priv)
-{
- iwl_rx_allocate(priv);
- iwl_rx_queue_restock(priv);
-}
-
-
-/**
- * iwl_rx_handle - Main entry function for receiving responses from uCode
- *
- * Uses the priv->rx_handlers callback function array to invoke
- * the appropriate handlers, including command responses,
- * frame-received notifications, and other notifications.
- */
-void iwl_rx_handle(struct iwl_priv *priv)
-{
- struct iwl_rx_mem_buffer *rxb;
- struct iwl_rx_packet *pkt;
- struct iwl_rx_queue *rxq = &priv->rxq;
- u32 r, i;
- int reclaim;
- unsigned long flags;
- u8 fill_rx = 0;
- u32 count = 8;
-
- /* uCode's read index (stored in shared DRAM) indicates the last Rx
- * buffer that the driver may process (last buffer filled by ucode). */
- r = priv->cfg->ops->lib->shared_mem_rx_idx(priv);
- i = rxq->read;
-
- /* Rx interrupt, but nothing sent from uCode */
- if (i == r)
- IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d\n", r, i);
-
- if (iwl_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2))
- fill_rx = 1;
-
- while (i != r) {
- rxb = rxq->queue[i];
-
- /* If an RXB doesn't have a Rx queue slot associated with it,
- * then a bug has been introduced in the queue refilling
- * routines -- catch it here */
- BUG_ON(rxb == NULL);
-
- rxq->queue[i] = NULL;
-
- pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr,
- priv->hw_params.rx_buf_size,
- PCI_DMA_FROMDEVICE);
- pkt = (struct iwl_rx_packet *)rxb->skb->data;
-
- /* Reclaim a command buffer only if this packet is a response
- * to a (driver-originated) command.
- * If the packet (e.g. Rx frame) originated from uCode,
- * there is no command buffer to reclaim.
- * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
- * but apparently a few don't get set; catch them here. */
- reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
- (pkt->hdr.cmd != REPLY_RX_PHY_CMD) &&
- (pkt->hdr.cmd != REPLY_RX) &&
- (pkt->hdr.cmd != REPLY_COMPRESSED_BA) &&
- (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
- (pkt->hdr.cmd != REPLY_TX);
-
- /* Based on type of command response or notification,
- * handle those that need handling via function in
- * rx_handlers table. See iwl4965_setup_rx_handlers() */
- if (priv->rx_handlers[pkt->hdr.cmd]) {
- IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d, %s, 0x%02x\n", r,
- i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
- priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
- } else {
- /* No handling needed */
- IWL_DEBUG(IWL_DL_RX,
- "r %d i %d No handler needed for %s, 0x%02x\n",
- r, i, get_cmd_string(pkt->hdr.cmd),
- pkt->hdr.cmd);
- }
-
- if (reclaim) {
- /* Invoke any callbacks, transfer the skb to caller, and
- * fire off the (possibly) blocking iwl_send_cmd()
- * as we reclaim the driver command queue */
- if (rxb && rxb->skb)
- iwl_tx_cmd_complete(priv, rxb);
- else
- IWL_WARNING("Claim null rxb?\n");
- }
-
- /* For now we just don't re-use anything. We can tweak this
- * later to try and re-use notification packets and SKBs that
- * fail to Rx correctly */
- if (rxb->skb != NULL) {
- priv->alloc_rxb_skb--;
- dev_kfree_skb_any(rxb->skb);
- rxb->skb = NULL;
- }
-
- pci_unmap_single(priv->pci_dev, rxb->dma_addr,
- priv->hw_params.rx_buf_size,
- PCI_DMA_FROMDEVICE);
- spin_lock_irqsave(&rxq->lock, flags);
- list_add_tail(&rxb->list, &priv->rxq.rx_used);
- spin_unlock_irqrestore(&rxq->lock, flags);
- i = (i + 1) & RX_QUEUE_MASK;
- /* If there are a lot of unused frames,
- * restock the Rx queue so ucode wont assert. */
- if (fill_rx) {
- count++;
- if (count >= 8) {
- priv->rxq.read = i;
- __iwl_rx_replenish(priv);
- count = 0;
- }
- }
- }
-
- /* Backtrack one entry */
- priv->rxq.read = i;
- iwl_rx_queue_restock(priv);
-}
-
-#ifdef CONFIG_IWLWIFI_DEBUG
-static void iwl4965_print_rx_config_cmd(struct iwl_priv *priv)
-{
- struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
- DECLARE_MAC_BUF(mac);
-
- IWL_DEBUG_RADIO("RX CONFIG:\n");
- iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
- IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
- IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
- IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
- le32_to_cpu(rxon->filter_flags));
- IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type);
- IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
- rxon->ofdm_basic_rates);
- IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates);
- IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
- print_mac(mac, rxon->node_addr));
- IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
- print_mac(mac, rxon->bssid_addr));
- IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
-}
-#endif
-
-static void iwl4965_enable_interrupts(struct iwl_priv *priv)
-{
- IWL_DEBUG_ISR("Enabling interrupts\n");
- set_bit(STATUS_INT_ENABLED, &priv->status);
- iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK);
-}
-
-/* call this function to flush any scheduled tasklet */
-static inline void iwl_synchronize_irq(struct iwl_priv *priv)
-{
- /* wait to make sure we flush pedding tasklet*/
- synchronize_irq(priv->pci_dev->irq);
- tasklet_kill(&priv->irq_tasklet);
-}
-
-static inline void iwl4965_disable_interrupts(struct iwl_priv *priv)
-{
- clear_bit(STATUS_INT_ENABLED, &priv->status);
-
- /* disable interrupts from uCode/NIC to host */
- iwl_write32(priv, CSR_INT_MASK, 0x00000000);
-
- /* acknowledge/clear/reset any interrupts still pending
- * from uCode or flow handler (Rx/Tx DMA) */
- iwl_write32(priv, CSR_INT, 0xffffffff);
- iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
- IWL_DEBUG_ISR("Disabled interrupts\n");
-}
-
-
-/**
- * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
- */
-static void iwl4965_irq_handle_error(struct iwl_priv *priv)
-{
- /* Set the FW error flag -- cleared on iwl4965_down */
- set_bit(STATUS_FW_ERROR, &priv->status);
-
- /* Cancel currently queued command. */
- clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
-
-#ifdef CONFIG_IWLWIFI_DEBUG
- if (priv->debug_level & IWL_DL_FW_ERRORS) {
- iwl_dump_nic_error_log(priv);
- iwl_dump_nic_event_log(priv);
- iwl4965_print_rx_config_cmd(priv);
- }
-#endif
-
- wake_up_interruptible(&priv->wait_command_queue);
-
- /* Keep the restart process from trying to send host
- * commands by clearing the INIT status bit */
- clear_bit(STATUS_READY, &priv->status);
-
- if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
- IWL_DEBUG(IWL_DL_FW_ERRORS,
- "Restarting adapter due to uCode error.\n");
-
- if (iwl_is_associated(priv)) {
- memcpy(&priv->recovery_rxon, &priv->active_rxon,
- sizeof(priv->recovery_rxon));
- priv->error_recovering = 1;
- }
- if (priv->cfg->mod_params->restart_fw)
- queue_work(priv->workqueue, &priv->restart);
- }
-}
-
-static void iwl4965_error_recovery(struct iwl_priv *priv)
-{
- unsigned long flags;
-
- memcpy(&priv->staging_rxon, &priv->recovery_rxon,
- sizeof(priv->staging_rxon));
- priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- iwl4965_commit_rxon(priv);
-
- iwl_rxon_add_station(priv, priv->bssid, 1);
-
- spin_lock_irqsave(&priv->lock, flags);
- priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id);
- priv->error_recovering = 0;
- spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-static void iwl4965_irq_tasklet(struct iwl_priv *priv)
-{
- u32 inta, handled = 0;
- u32 inta_fh;
- unsigned long flags;
-#ifdef CONFIG_IWLWIFI_DEBUG
- u32 inta_mask;
-#endif
-
- spin_lock_irqsave(&priv->lock, flags);
-
- /* Ack/clear/reset pending uCode interrupts.
- * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
- * and will clear only when CSR_FH_INT_STATUS gets cleared. */
- inta = iwl_read32(priv, CSR_INT);
- iwl_write32(priv, CSR_INT, inta);
-
- /* Ack/clear/reset pending flow-handler (DMA) interrupts.
- * Any new interrupts that happen after this, either while we're
- * in this tasklet, or later, will show up in next ISR/tasklet. */
- inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
- iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
-
-#ifdef CONFIG_IWLWIFI_DEBUG
- if (priv->debug_level & IWL_DL_ISR) {
- /* just for debug */
- inta_mask = iwl_read32(priv, CSR_INT_MASK);
- IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
- inta, inta_mask, inta_fh);
- }
-#endif
-
- /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
- * atomic, make sure that inta covers all the interrupts that
- * we've discovered, even if FH interrupt came in just after
- * reading CSR_INT. */
- if (inta_fh & CSR49_FH_INT_RX_MASK)
- inta |= CSR_INT_BIT_FH_RX;
- if (inta_fh & CSR49_FH_INT_TX_MASK)
- inta |= CSR_INT_BIT_FH_TX;
-
- /* Now service all interrupt bits discovered above. */
- if (inta & CSR_INT_BIT_HW_ERR) {
- IWL_ERROR("Microcode HW error detected. Restarting.\n");
-
- /* Tell the device to stop sending interrupts */
- iwl4965_disable_interrupts(priv);
-
- iwl4965_irq_handle_error(priv);
-
- handled |= CSR_INT_BIT_HW_ERR;
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return;
- }
-
-#ifdef CONFIG_IWLWIFI_DEBUG
- if (priv->debug_level & (IWL_DL_ISR)) {
- /* NIC fires this, but we don't use it, redundant with WAKEUP */
- if (inta & CSR_INT_BIT_SCD)
- IWL_DEBUG_ISR("Scheduler finished to transmit "
- "the frame/frames.\n");
-
- /* Alive notification via Rx interrupt will do the real work */
- if (inta & CSR_INT_BIT_ALIVE)
- IWL_DEBUG_ISR("Alive interrupt\n");
- }
-#endif
- /* Safely ignore these bits for debug checks below */
- inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
-
- /* HW RF KILL switch toggled */
- if (inta & CSR_INT_BIT_RF_KILL) {
- int hw_rf_kill = 0;
- if (!(iwl_read32(priv, CSR_GP_CNTRL) &
- CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
- hw_rf_kill = 1;
-
- IWL_DEBUG(IWL_DL_RF_KILL, "RF_KILL bit toggled to %s.\n",
- hw_rf_kill ? "disable radio":"enable radio");
-
- /* driver only loads ucode once setting the interface up.
- * the driver as well won't allow loading if RFKILL is set
- * therefore no need to restart the driver from this handler
- */
- if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status))
- clear_bit(STATUS_RF_KILL_HW, &priv->status);
-
- handled |= CSR_INT_BIT_RF_KILL;
- }
-
- /* Chip got too hot and stopped itself */
- if (inta & CSR_INT_BIT_CT_KILL) {
- IWL_ERROR("Microcode CT kill error detected.\n");
- handled |= CSR_INT_BIT_CT_KILL;
- }
-
- /* Error detected by uCode */
- if (inta & CSR_INT_BIT_SW_ERR) {
- IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
- inta);
- iwl4965_irq_handle_error(priv);
- handled |= CSR_INT_BIT_SW_ERR;
- }
-
- /* uCode wakes up after power-down sleep */
- if (inta & CSR_INT_BIT_WAKEUP) {
- IWL_DEBUG_ISR("Wakeup interrupt\n");
- iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
- iwl_txq_update_write_ptr(priv, &priv->txq[0]);
- iwl_txq_update_write_ptr(priv, &priv->txq[1]);
- iwl_txq_update_write_ptr(priv, &priv->txq[2]);
- iwl_txq_update_write_ptr(priv, &priv->txq[3]);
- iwl_txq_update_write_ptr(priv, &priv->txq[4]);
- iwl_txq_update_write_ptr(priv, &priv->txq[5]);
-
- handled |= CSR_INT_BIT_WAKEUP;
- }
-
- /* All uCode command responses, including Tx command responses,
- * Rx "responses" (frame-received notification), and other
- * notifications from uCode come through here*/
- if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
- iwl_rx_handle(priv);
- handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
- }
-
- if (inta & CSR_INT_BIT_FH_TX) {
- IWL_DEBUG_ISR("Tx interrupt\n");
- handled |= CSR_INT_BIT_FH_TX;
- /* FH finished to write, send event */
- priv->ucode_write_complete = 1;
- wake_up_interruptible(&priv->wait_command_queue);
- }
-
- if (inta & ~handled)
- IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
-
- if (inta & ~CSR_INI_SET_MASK) {
- IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
- inta & ~CSR_INI_SET_MASK);
- IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh);
- }
-
- /* Re-enable all interrupts */
- /* only Re-enable if diabled by irq */
- if (test_bit(STATUS_INT_ENABLED, &priv->status))
- iwl4965_enable_interrupts(priv);
-
-#ifdef CONFIG_IWLWIFI_DEBUG
- if (priv->debug_level & (IWL_DL_ISR)) {
- inta = iwl_read32(priv, CSR_INT);
- inta_mask = iwl_read32(priv, CSR_INT_MASK);
- inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
- IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
- "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
- }
-#endif
- spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-static irqreturn_t iwl4965_isr(int irq, void *data)
-{
- struct iwl_priv *priv = data;
- u32 inta, inta_mask;
- u32 inta_fh;
- if (!priv)
- return IRQ_NONE;
-
- spin_lock(&priv->lock);
-
- /* Disable (but don't clear!) interrupts here to avoid
- * back-to-back ISRs and sporadic interrupts from our NIC.
- * If we have something to service, the tasklet will re-enable ints.
- * If we *don't* have something, we'll re-enable before leaving here. */
- inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
- iwl_write32(priv, CSR_INT_MASK, 0x00000000);
-
- /* Discover which interrupts are active/pending */
- inta = iwl_read32(priv, CSR_INT);
- inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
-
- /* Ignore interrupt if there's nothing in NIC to service.
- * This may be due to IRQ shared with another device,
- * or due to sporadic interrupts thrown from our NIC. */
- if (!inta && !inta_fh) {
- IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
- goto none;
- }
-
- if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
- /* Hardware disappeared. It might have already raised
- * an interrupt */
- IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta);
- goto unplugged;
- }
-
- IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
- inta, inta_mask, inta_fh);
-
- inta &= ~CSR_INT_BIT_SCD;
-
- /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
- if (likely(inta || inta_fh))
- tasklet_schedule(&priv->irq_tasklet);
-
- unplugged:
- spin_unlock(&priv->lock);
- return IRQ_HANDLED;
-
- none:
- /* re-enable interrupts here since we don't have anything to service. */
- /* only Re-enable if diabled by irq */
- if (test_bit(STATUS_INT_ENABLED, &priv->status))
- iwl4965_enable_interrupts(priv);
- spin_unlock(&priv->lock);
- return IRQ_NONE;
-}
-
-/******************************************************************************
- *
- * uCode download functions
- *
- ******************************************************************************/
-
-static void iwl4965_dealloc_ucode_pci(struct iwl_priv *priv)
-{
- iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code);
- iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data);
- iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
- iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init);
- iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
- iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
-}
-
-static void iwl4965_nic_start(struct iwl_priv *priv)
-{
- /* Remove all resets to allow NIC to operate */
- iwl_write32(priv, CSR_RESET, 0);
-}
-
-
-/**
- * iwl4965_read_ucode - Read uCode images from disk file.
- *
- * Copy into buffers for card to fetch via bus-mastering
- */
-static int iwl4965_read_ucode(struct iwl_priv *priv)
-{
- struct iwl_ucode *ucode;
- int ret;
- const struct firmware *ucode_raw;
- const char *name = priv->cfg->fw_name;
- u8 *src;
- size_t len;
- u32 ver, inst_size, data_size, init_size, init_data_size, boot_size;
-
- /* Ask kernel firmware_class module to get the boot firmware off disk.
- * request_firmware() is synchronous, file is in memory on return. */
- ret = request_firmware(&ucode_raw, name, &priv->pci_dev->dev);
- if (ret < 0) {
- IWL_ERROR("%s firmware file req failed: Reason %d\n",
- name, ret);
- goto error;
- }
-
- IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
- name, ucode_raw->size);
-
- /* Make sure that we got at least our header! */
- if (ucode_raw->size < sizeof(*ucode)) {
- IWL_ERROR("File size way too small!\n");
- ret = -EINVAL;
- goto err_release;
- }
-
- /* Data from ucode file: header followed by uCode images */
- ucode = (void *)ucode_raw->data;
-
- ver = le32_to_cpu(ucode->ver);
- inst_size = le32_to_cpu(ucode->inst_size);
- data_size = le32_to_cpu(ucode->data_size);
- init_size = le32_to_cpu(ucode->init_size);
- init_data_size = le32_to_cpu(ucode->init_data_size);
- boot_size = le32_to_cpu(ucode->boot_size);
-
- IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver);
- IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
- inst_size);
- IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",
- data_size);
- IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n",
- init_size);
- IWL_DEBUG_INFO("f/w package hdr init data size = %u\n",
- init_data_size);
- IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n",
- boot_size);
-
- /* Verify size of file vs. image size info in file's header */
- if (ucode_raw->size < sizeof(*ucode) +
- inst_size + data_size + init_size +
- init_data_size + boot_size) {
-
- IWL_DEBUG_INFO("uCode file size %d too small\n",
- (int)ucode_raw->size);
- ret = -EINVAL;
- goto err_release;
- }
-
- /* Verify that uCode images will fit in card's SRAM */
- if (inst_size > priv->hw_params.max_inst_size) {
- IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
- inst_size);
- ret = -EINVAL;
- goto err_release;
- }
-
- if (data_size > priv->hw_params.max_data_size) {
- IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
- data_size);
- ret = -EINVAL;
- goto err_release;
- }
- if (init_size > priv->hw_params.max_inst_size) {
- IWL_DEBUG_INFO
- ("uCode init instr len %d too large to fit in\n",
- init_size);
- ret = -EINVAL;
- goto err_release;
- }
- if (init_data_size > priv->hw_params.max_data_size) {
- IWL_DEBUG_INFO
- ("uCode init data len %d too large to fit in\n",
- init_data_size);
- ret = -EINVAL;
- goto err_release;
- }
- if (boot_size > priv->hw_params.max_bsm_size) {
- IWL_DEBUG_INFO
- ("uCode boot instr len %d too large to fit in\n",
- boot_size);
- ret = -EINVAL;
- goto err_release;
- }
-
- /* Allocate ucode buffers for card's bus-master loading ... */
-
- /* Runtime instructions and 2 copies of data:
- * 1) unmodified from disk
- * 2) backup cache for save/restore during power-downs */
- priv->ucode_code.len = inst_size;
- iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
-
- priv->ucode_data.len = data_size;
- iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
-
- priv->ucode_data_backup.len = data_size;
- iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
-
- /* Initialization instructions and data */
- if (init_size && init_data_size) {
- priv->ucode_init.len = init_size;
- iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
-
- priv->ucode_init_data.len = init_data_size;
- iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
-
- if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
- goto err_pci_alloc;
- }
-
- /* Bootstrap (instructions only, no data) */
- if (boot_size) {
- priv->ucode_boot.len = boot_size;
- iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
-
- if (!priv->ucode_boot.v_addr)
- goto err_pci_alloc;
- }
-
- /* Copy images into buffers for card's bus-master reads ... */
-
- /* Runtime instructions (first block of data in file) */
- src = &ucode->data[0];
- len = priv->ucode_code.len;
- IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len);
- memcpy(priv->ucode_code.v_addr, src, len);
- IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
- priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
-
- /* Runtime data (2nd block)
- * NOTE: Copy into backup buffer will be done in iwl4965_up() */
- src = &ucode->data[inst_size];
- len = priv->ucode_data.len;
- IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len);
- memcpy(priv->ucode_data.v_addr, src, len);
- memcpy(priv->ucode_data_backup.v_addr, src, len);
-
- /* Initialization instructions (3rd block) */
- if (init_size) {
- src = &ucode->data[inst_size + data_size];
- len = priv->ucode_init.len;
- IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
- len);
- memcpy(priv->ucode_init.v_addr, src, len);
- }
-
- /* Initialization data (4th block) */
- if (init_data_size) {
- src = &ucode->data[inst_size + data_size + init_size];
- len = priv->ucode_init_data.len;
- IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n",
- len);
- memcpy(priv->ucode_init_data.v_addr, src, len);
- }
-
- /* Bootstrap instructions (5th block) */
- src = &ucode->data[inst_size + data_size + init_size + init_data_size];
- len = priv->ucode_boot.len;
- IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len);
- memcpy(priv->ucode_boot.v_addr, src, len);
-
- /* We have our copies now, allow OS release its copies */
- release_firmware(ucode_raw);
- return 0;
-
- err_pci_alloc:
- IWL_ERROR("failed to allocate pci memory\n");
- ret = -ENOMEM;
- iwl4965_dealloc_ucode_pci(priv);
-
- err_release:
- release_firmware(ucode_raw);
-
- error:
- return ret;
-}
-
-/**
- * iwl_alive_start - called after REPLY_ALIVE notification received
- * from protocol/runtime uCode (initialization uCode's
- * Alive gets handled by iwl_init_alive_start()).
- */
-static void iwl_alive_start(struct iwl_priv *priv)
-{
- int ret = 0;
-
- IWL_DEBUG_INFO("Runtime Alive received.\n");
-
- if (priv->card_alive.is_valid != UCODE_VALID_OK) {
- /* We had an error bringing up the hardware, so take it
- * all the way back down so we can try again */
- IWL_DEBUG_INFO("Alive failed.\n");
- goto restart;
- }
-
- /* Initialize uCode has loaded Runtime uCode ... verify inst image.
- * This is a paranoid check, because we would not have gotten the
- * "runtime" alive if code weren't properly loaded. */
- if (iwl_verify_ucode(priv)) {
- /* Runtime instruction load was bad;
- * take it all the way back down so we can try again */
- IWL_DEBUG_INFO("Bad runtime uCode load.\n");
- goto restart;
- }
-
- iwl_clear_stations_table(priv);
- ret = priv->cfg->ops->lib->alive_notify(priv);
- if (ret) {
- IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
- ret);
- goto restart;
- }
-
- /* After the ALIVE response, we can send host commands to 4965 uCode */
- set_bit(STATUS_ALIVE, &priv->status);
-
- if (iwl_is_rfkill(priv))
- return;
-
- ieee80211_wake_queues(priv->hw);
-
- priv->active_rate = priv->rates_mask;
- priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
-
- if (iwl_is_associated(priv)) {
- struct iwl_rxon_cmd *active_rxon =
- (struct iwl_rxon_cmd *)&priv->active_rxon;
-
- memcpy(&priv->staging_rxon, &priv->active_rxon,
- sizeof(priv->staging_rxon));
- active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- } else {
- /* Initialize our rx_config data */
- iwl4965_connection_init_rx_config(priv);
- memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
- }
-
- /* Configure Bluetooth device coexistence support */
- iwl4965_send_bt_config(priv);
-
- iwl_reset_run_time_calib(priv);
-
- /* Configure the adapter for unassociated operation */
- iwl4965_commit_rxon(priv);
-
- /* At this point, the NIC is initialized and operational */
- iwl_rf_kill_ct_config(priv);
-
- iwl_leds_register(priv);
-
- IWL_DEBUG_INFO("ALIVE processing complete.\n");
- set_bit(STATUS_READY, &priv->status);
- wake_up_interruptible(&priv->wait_command_queue);
-
- if (priv->error_recovering)
- iwl4965_error_recovery(priv);
-
- iwl_power_update_mode(priv, 1);
- ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC);
-
- if (test_and_clear_bit(STATUS_MODE_PENDING, &priv->status))
- iwl4965_set_mode(priv, priv->iw_mode);
-
- return;
-
- restart:
- queue_work(priv->workqueue, &priv->restart);
-}
-
-static void iwl_cancel_deferred_work(struct iwl_priv *priv);
-
-static void __iwl4965_down(struct iwl_priv *priv)
-{
- unsigned long flags;
- int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
-
- IWL_DEBUG_INFO(DRV_NAME " is going down\n");
-
- if (!exit_pending)
- set_bit(STATUS_EXIT_PENDING, &priv->status);
-
- iwl_leds_unregister(priv);
-
- iwl_clear_stations_table(priv);
-
- /* Unblock any waiting calls */
- wake_up_interruptible_all(&priv->wait_command_queue);
-
- /* Wipe out the EXIT_PENDING status bit if we are not actually
- * exiting the module */
- if (!exit_pending)
- clear_bit(STATUS_EXIT_PENDING, &priv->status);
-
- /* stop and reset the on-board processor */
- iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
-
- /* tell the device to stop sending interrupts */
- spin_lock_irqsave(&priv->lock, flags);
- iwl4965_disable_interrupts(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
- iwl_synchronize_irq(priv);
-
- if (priv->mac80211_registered)
- ieee80211_stop_queues(priv->hw);
-
- /* If we have not previously called iwl4965_init() then
- * clear all bits but the RF Kill and SUSPEND bits and return */
- if (!iwl_is_init(priv)) {
- priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
- STATUS_RF_KILL_HW |
- test_bit(STATUS_RF_KILL_SW, &priv->status) <<
- STATUS_RF_KILL_SW |
- test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
- STATUS_GEO_CONFIGURED |
- test_bit(STATUS_IN_SUSPEND, &priv->status) <<
- STATUS_IN_SUSPEND |
- test_bit(STATUS_EXIT_PENDING, &priv->status) <<
- STATUS_EXIT_PENDING;
- goto exit;
- }
-
- /* ...otherwise clear out all the status bits but the RF Kill and
- * SUSPEND bits and continue taking the NIC down. */
- priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
- STATUS_RF_KILL_HW |
- test_bit(STATUS_RF_KILL_SW, &priv->status) <<
- STATUS_RF_KILL_SW |
- test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
- STATUS_GEO_CONFIGURED |
- test_bit(STATUS_IN_SUSPEND, &priv->status) <<
- STATUS_IN_SUSPEND |
- test_bit(STATUS_FW_ERROR, &priv->status) <<
- STATUS_FW_ERROR |
- test_bit(STATUS_EXIT_PENDING, &priv->status) <<
- STATUS_EXIT_PENDING;
-
- spin_lock_irqsave(&priv->lock, flags);
- iwl_clear_bit(priv, CSR_GP_CNTRL,
- CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- iwl_txq_ctx_stop(priv);
- iwl_rxq_stop(priv);
-
- spin_lock_irqsave(&priv->lock, flags);
- if (!iwl_grab_nic_access(priv)) {
- iwl_write_prph(priv, APMG_CLK_DIS_REG,
- APMG_CLK_VAL_DMA_CLK_RQT);
- iwl_release_nic_access(priv);
- }
- spin_unlock_irqrestore(&priv->lock, flags);
-
- udelay(5);
-
- /* FIXME: apm_ops.suspend(priv) */
- priv->cfg->ops->lib->apm_ops.reset(priv);
- priv->cfg->ops->lib->free_shared_mem(priv);
-
- exit:
- memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
-
- if (priv->ibss_beacon)
- dev_kfree_skb(priv->ibss_beacon);
- priv->ibss_beacon = NULL;
-
- /* clear out any free frames */
- iwl_clear_free_frames(priv);
-}
-
-static void iwl4965_down(struct iwl_priv *priv)
-{
- mutex_lock(&priv->mutex);
- __iwl4965_down(priv);
- mutex_unlock(&priv->mutex);
-
- iwl_cancel_deferred_work(priv);
-}
-
-#define MAX_HW_RESTARTS 5
-
-static int __iwl4965_up(struct iwl_priv *priv)
-{
- int i;
- int ret;
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
- IWL_WARNING("Exit pending; will not bring the NIC up\n");
- return -EIO;
- }
-
- if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
- IWL_ERROR("ucode not available for device bringup\n");
- return -EIO;
- }
-
- /* If platform's RF_KILL switch is NOT set to KILL */
- if (iwl_read32(priv, CSR_GP_CNTRL) &
- CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
- clear_bit(STATUS_RF_KILL_HW, &priv->status);
- else
- set_bit(STATUS_RF_KILL_HW, &priv->status);
-
- if (!test_bit(STATUS_IN_SUSPEND, &priv->status) &&
- iwl_is_rfkill(priv)) {
- IWL_WARNING("Radio disabled by %s RF Kill switch\n",
- test_bit(STATUS_RF_KILL_HW, &priv->status) ? "HW" : "SW");
- return -ENODEV;
- }
-
- iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
-
- ret = priv->cfg->ops->lib->alloc_shared_mem(priv);
- if (ret) {
- IWL_ERROR("Unable to allocate shared memory\n");
- return ret;
- }
-
- ret = iwl_hw_nic_init(priv);
- if (ret) {
- IWL_ERROR("Unable to init nic\n");
- return ret;
- }
-
- /* make sure rfkill handshake bits are cleared */
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
- CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
-
- /* clear (again), then enable host interrupts */
- iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
- iwl4965_enable_interrupts(priv);
-
- /* really make sure rfkill handshake bits are cleared */
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
-
- /* Copy original ucode data image from disk into backup cache.
- * This will be used to initialize the on-board processor's
- * data SRAM for a clean start when the runtime program first loads. */
- memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
- priv->ucode_data.len);
-
- /* We return success when we resume from suspend and rf_kill is on. */
- if (test_bit(STATUS_RF_KILL_HW, &priv->status) ||
- test_bit(STATUS_RF_KILL_SW, &priv->status))
- return 0;
-
- for (i = 0; i < MAX_HW_RESTARTS; i++) {
-
- iwl_clear_stations_table(priv);
-
- /* load bootstrap state machine,
- * load bootstrap program into processor's memory,
- * prepare to load the "initialize" uCode */
- ret = priv->cfg->ops->lib->load_ucode(priv);
-
- if (ret) {
- IWL_ERROR("Unable to set up bootstrap uCode: %d\n", ret);
- continue;
- }
-
- /* Clear out the uCode error bit if it is set */
- clear_bit(STATUS_FW_ERROR, &priv->status);
-
- /* start card; "initialize" will load runtime ucode */
- iwl4965_nic_start(priv);
-
- IWL_DEBUG_INFO(DRV_NAME " is coming up\n");
-
- return 0;
- }
-
- set_bit(STATUS_EXIT_PENDING, &priv->status);
- __iwl4965_down(priv);
- clear_bit(STATUS_EXIT_PENDING, &priv->status);
-
- /* tried to restart and config the device for as long as our
- * patience could withstand */
- IWL_ERROR("Unable to initialize device after %d attempts.\n", i);
- return -EIO;
-}
-
-
-/*****************************************************************************
- *
- * Workqueue callbacks
- *
- *****************************************************************************/
-
-static void iwl_bg_init_alive_start(struct work_struct *data)
-{
- struct iwl_priv *priv =
- container_of(data, struct iwl_priv, init_alive_start.work);
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- mutex_lock(&priv->mutex);
- priv->cfg->ops->lib->init_alive_start(priv);
- mutex_unlock(&priv->mutex);
-}
-
-static void iwl_bg_alive_start(struct work_struct *data)
-{
- struct iwl_priv *priv =
- container_of(data, struct iwl_priv, alive_start.work);
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- mutex_lock(&priv->mutex);
- iwl_alive_start(priv);
- mutex_unlock(&priv->mutex);
-}
-
-static void iwl4965_bg_rf_kill(struct work_struct *work)
-{
- struct iwl_priv *priv = container_of(work, struct iwl_priv, rf_kill);
-
- wake_up_interruptible(&priv->wait_command_queue);
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- mutex_lock(&priv->mutex);
-
- if (!iwl_is_rfkill(priv)) {
- IWL_DEBUG(IWL_DL_RF_KILL,
- "HW and/or SW RF Kill no longer active, restarting "
- "device\n");
- if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
- queue_work(priv->workqueue, &priv->restart);
- } else {
- /* make sure mac80211 stop sending Tx frame */
- if (priv->mac80211_registered)
- ieee80211_stop_queues(priv->hw);
-
- if (!test_bit(STATUS_RF_KILL_HW, &priv->status))
- IWL_DEBUG_RF_KILL("Can not turn radio back on - "
- "disabled by SW switch\n");
- else
- IWL_WARNING("Radio Frequency Kill Switch is On:\n"
- "Kill switch must be turned off for "
- "wireless networking to work.\n");
- }
- mutex_unlock(&priv->mutex);
- iwl_rfkill_set_hw_state(priv);
-}
-
-static void iwl4965_bg_set_monitor(struct work_struct *work)
-{
- struct iwl_priv *priv = container_of(work,
- struct iwl_priv, set_monitor);
- int ret;
-
- IWL_DEBUG(IWL_DL_STATE, "setting monitor mode\n");
-
- mutex_lock(&priv->mutex);
-
- ret = iwl4965_set_mode(priv, IEEE80211_IF_TYPE_MNTR);
-
- if (ret) {
- if (ret == -EAGAIN)
- IWL_DEBUG(IWL_DL_STATE, "leave - not ready\n");
- else
- IWL_ERROR("iwl4965_set_mode() failed ret = %d\n", ret);
- }
-
- mutex_unlock(&priv->mutex);
-}
-
-static void iwl_bg_run_time_calib_work(struct work_struct *work)
-{
- struct iwl_priv *priv = container_of(work, struct iwl_priv,
- run_time_calib_work);
-
- mutex_lock(&priv->mutex);
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
- test_bit(STATUS_SCANNING, &priv->status)) {
- mutex_unlock(&priv->mutex);
- return;
- }
-
- if (priv->start_calib) {
- iwl_chain_noise_calibration(priv, &priv->statistics);
-
- iwl_sensitivity_calibration(priv, &priv->statistics);
- }
-
- mutex_unlock(&priv->mutex);
- return;
-}
-
-static void iwl4965_bg_up(struct work_struct *data)
-{
- struct iwl_priv *priv = container_of(data, struct iwl_priv, up);
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- mutex_lock(&priv->mutex);
- __iwl4965_up(priv);
- mutex_unlock(&priv->mutex);
- iwl_rfkill_set_hw_state(priv);
-}
-
-static void iwl4965_bg_restart(struct work_struct *data)
-{
- struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- iwl4965_down(priv);
- queue_work(priv->workqueue, &priv->up);
-}
-
-static void iwl4965_bg_rx_replenish(struct work_struct *data)
-{
- struct iwl_priv *priv =
- container_of(data, struct iwl_priv, rx_replenish);
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- mutex_lock(&priv->mutex);
- iwl_rx_replenish(priv);
- mutex_unlock(&priv->mutex);
-}
-
-#define IWL_DELAY_NEXT_SCAN (HZ*2)
-
-static void iwl4965_post_associate(struct iwl_priv *priv)
-{
- struct ieee80211_conf *conf = NULL;
- int ret = 0;
- DECLARE_MAC_BUF(mac);
- unsigned long flags;
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
- IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__);
- return;
- }
-
- IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
- priv->assoc_id,
- print_mac(mac, priv->active_rxon.bssid_addr));
-
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
-
- if (!priv->vif || !priv->is_open)
- return;
-
- iwl_scan_cancel_timeout(priv, 200);
-
- conf = ieee80211_get_hw_conf(priv->hw);
-
- priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- iwl4965_commit_rxon(priv);
-
- memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd));
- iwl4965_setup_rxon_timing(priv);
- ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
- sizeof(priv->rxon_timing), &priv->rxon_timing);
- if (ret)
- IWL_WARNING("REPLY_RXON_TIMING failed - "
- "Attempting to continue.\n");
-
- priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
-
- if (priv->current_ht_config.is_ht)
- iwl_set_rxon_ht(priv, &priv->current_ht_config);
-
- iwl_set_rxon_chain(priv);
- priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
-
- IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
- priv->assoc_id, priv->beacon_int);
-
- if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
- priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
- else
- priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
-
- if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
- if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
- priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
- else
- priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
- priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
-
- }
-
- iwl4965_commit_rxon(priv);
-
- switch (priv->iw_mode) {
- case IEEE80211_IF_TYPE_STA:
- break;
-
- case IEEE80211_IF_TYPE_IBSS:
-
- /* assume default assoc id */
- priv->assoc_id = 1;
-
- iwl_rxon_add_station(priv, priv->bssid, 0);
- iwl4965_send_beacon_cmd(priv);
-
- break;
-
- default:
- IWL_ERROR("%s Should not be called in %d mode\n",
- __FUNCTION__, priv->iw_mode);
- break;
- }
-
- /* Enable Rx differential gain and sensitivity calibrations */
- iwl_chain_noise_reset(priv);
- priv->start_calib = 1;
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
- priv->assoc_station_added = 1;
-
- spin_lock_irqsave(&priv->lock, flags);
- iwl_activate_qos(priv, 0);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- iwl_power_update_mode(priv, 0);
- /* we have just associated, don't start scan too early */
- priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN;
-}
-
-static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
-
-static void iwl_bg_scan_completed(struct work_struct *work)
-{
- struct iwl_priv *priv =
- container_of(work, struct iwl_priv, scan_completed);
-
- IWL_DEBUG_SCAN("SCAN complete scan\n");
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- if (test_bit(STATUS_CONF_PENDING, &priv->status))
- iwl4965_mac_config(priv->hw, ieee80211_get_hw_conf(priv->hw));
-
- ieee80211_scan_completed(priv->hw);
-
- /* Since setting the TXPOWER may have been deferred while
- * performing the scan, fire one off */
- mutex_lock(&priv->mutex);
- iwl_set_tx_power(priv, priv->tx_power_user_lmt, true);
- mutex_unlock(&priv->mutex);
-}
-
-/*****************************************************************************
- *
- * mac80211 entry point functions
- *
- *****************************************************************************/
-
-#define UCODE_READY_TIMEOUT (4 * HZ)
-
-static int iwl4965_mac_start(struct ieee80211_hw *hw)
-{
- struct iwl_priv *priv = hw->priv;
- int ret;
-
- IWL_DEBUG_MAC80211("enter\n");
-
- if (pci_enable_device(priv->pci_dev)) {
- IWL_ERROR("Fail to pci_enable_device\n");
- return -ENODEV;
- }
- pci_restore_state(priv->pci_dev);
- pci_enable_msi(priv->pci_dev);
-
- ret = request_irq(priv->pci_dev->irq, iwl4965_isr, IRQF_SHARED,
- DRV_NAME, priv);
- if (ret) {
- IWL_ERROR("Error allocating IRQ %d\n", priv->pci_dev->irq);
- goto out_disable_msi;
- }
-
- /* we should be verifying the device is ready to be opened */
- mutex_lock(&priv->mutex);
-
- memset(&priv->staging_rxon, 0, sizeof(struct iwl_rxon_cmd));
- /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
- * ucode filename and max sizes are card-specific. */
-
- if (!priv->ucode_code.len) {
- ret = iwl4965_read_ucode(priv);
- if (ret) {
- IWL_ERROR("Could not read microcode: %d\n", ret);
- mutex_unlock(&priv->mutex);
- goto out_release_irq;
- }
- }
-
- ret = __iwl4965_up(priv);
-
- mutex_unlock(&priv->mutex);
-
- iwl_rfkill_set_hw_state(priv);
-
- if (ret)
- goto out_release_irq;
-
- IWL_DEBUG_INFO("Start UP work done.\n");
-
- if (test_bit(STATUS_IN_SUSPEND, &priv->status))
- return 0;
-
- /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from
- * mac80211 will not be run successfully. */
- ret = wait_event_interruptible_timeout(priv->wait_command_queue,
- test_bit(STATUS_READY, &priv->status),
- UCODE_READY_TIMEOUT);
- if (!ret) {
- if (!test_bit(STATUS_READY, &priv->status)) {
- IWL_ERROR("START_ALIVE timeout after %dms.\n",
- jiffies_to_msecs(UCODE_READY_TIMEOUT));
- ret = -ETIMEDOUT;
- goto out_release_irq;
- }
- }
-
- priv->is_open = 1;
- IWL_DEBUG_MAC80211("leave\n");
- return 0;
-
-out_release_irq:
- free_irq(priv->pci_dev->irq, priv);
-out_disable_msi:
- pci_disable_msi(priv->pci_dev);
- pci_disable_device(priv->pci_dev);
- priv->is_open = 0;
- IWL_DEBUG_MAC80211("leave - failed\n");
- return ret;
-}
-
-static void iwl4965_mac_stop(struct ieee80211_hw *hw)
-{
- struct iwl_priv *priv = hw->priv;
-
- IWL_DEBUG_MAC80211("enter\n");
-
- if (!priv->is_open) {
- IWL_DEBUG_MAC80211("leave - skip\n");
- return;
- }
-
- priv->is_open = 0;
-
- if (iwl_is_ready_rf(priv)) {
- /* stop mac, cancel any scan request and clear
- * RXON_FILTER_ASSOC_MSK BIT
- */
- mutex_lock(&priv->mutex);
- iwl_scan_cancel_timeout(priv, 100);
- mutex_unlock(&priv->mutex);
- }
-
- iwl4965_down(priv);
-
- flush_workqueue(priv->workqueue);
- free_irq(priv->pci_dev->irq, priv);
- pci_disable_msi(priv->pci_dev);
- pci_save_state(priv->pci_dev);
- pci_disable_device(priv->pci_dev);
-
- IWL_DEBUG_MAC80211("leave\n");
-}
-
-static int iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
-{
- struct iwl_priv *priv = hw->priv;
-
- IWL_DEBUG_MAC80211("enter\n");
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) {
- IWL_DEBUG_MAC80211("leave - monitor\n");
- dev_kfree_skb_any(skb);
- return 0;
- }
-
- IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
- ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
-
- if (iwl_tx_skb(priv, skb))
- dev_kfree_skb_any(skb);
-
- IWL_DEBUG_MAC80211("leave\n");
- return 0;
-}
-
-static int iwl4965_mac_add_interface(struct ieee80211_hw *hw,
- struct ieee80211_if_init_conf *conf)
-{
- struct iwl_priv *priv = hw->priv;
- unsigned long flags;
- DECLARE_MAC_BUF(mac);
-
- IWL_DEBUG_MAC80211("enter: type %d\n", conf->type);
-
- if (priv->vif) {
- IWL_DEBUG_MAC80211("leave - vif != NULL\n");
- return -EOPNOTSUPP;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
- priv->vif = conf->vif;
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- mutex_lock(&priv->mutex);
-
- if (conf->mac_addr) {
- IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac, conf->mac_addr));
- memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
- }
-
- if (iwl4965_set_mode(priv, conf->type) == -EAGAIN)
- /* we are not ready, will run again when ready */
- set_bit(STATUS_MODE_PENDING, &priv->status);
-
- mutex_unlock(&priv->mutex);
-
- IWL_DEBUG_MAC80211("leave\n");
- return 0;
-}
-
-/**
- * iwl4965_mac_config - mac80211 config callback
- *
- * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
- * be set inappropriately and the driver currently sets the hardware up to
- * use it whenever needed.
- */
-static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
-{
- struct iwl_priv *priv = hw->priv;
- const struct iwl_channel_info *ch_info;
- unsigned long flags;
- int ret = 0;
- u16 channel;
-
- mutex_lock(&priv->mutex);
- IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value);
-
- priv->add_radiotap = !!(conf->flags & IEEE80211_CONF_RADIOTAP);
-
- if (conf->radio_enabled && iwl_radio_kill_sw_enable_radio(priv)) {
- IWL_DEBUG_MAC80211("leave - RF-KILL - waiting for uCode\n");
- goto out;
- }
-
- if (!conf->radio_enabled)
- iwl_radio_kill_sw_disable_radio(priv);
-
- if (!iwl_is_ready(priv)) {
- IWL_DEBUG_MAC80211("leave - not ready\n");
- ret = -EIO;
- goto out;
- }
-
- if (unlikely(!priv->cfg->mod_params->disable_hw_scan &&
- test_bit(STATUS_SCANNING, &priv->status))) {
- IWL_DEBUG_MAC80211("leave - scanning\n");
- set_bit(STATUS_CONF_PENDING, &priv->status);
- mutex_unlock(&priv->mutex);
- return 0;
- }
-
- channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
- ch_info = iwl_get_channel_info(priv, conf->channel->band, channel);
- if (!is_channel_valid(ch_info)) {
- IWL_DEBUG_MAC80211("leave - invalid channel\n");
- ret = -EINVAL;
- goto out;
- }
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS &&
- !is_channel_ibss(ch_info)) {
- IWL_ERROR("channel %d in band %d not IBSS channel\n",
- conf->channel->hw_value, conf->channel->band);
- ret = -EINVAL;
- goto out;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
-
-
- /* if we are switching from ht to 2.4 clear flags
- * from any ht related info since 2.4 does not
- * support ht */
- if ((le16_to_cpu(priv->staging_rxon.channel) != channel)
-#ifdef IEEE80211_CONF_CHANNEL_SWITCH
- && !(conf->flags & IEEE80211_CONF_CHANNEL_SWITCH)
-#endif
- )
- priv->staging_rxon.flags = 0;
-
- iwl_set_rxon_channel(priv, conf->channel->band, channel);
-
- iwl_set_flags_for_band(priv, conf->channel->band);
-
- /* The list of supported rates and rate mask can be different
- * for each band; since the band may have changed, reset
- * the rate mask to what mac80211 lists */
- iwl4965_set_rate(priv);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
-#ifdef IEEE80211_CONF_CHANNEL_SWITCH
- if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) {
- iwl4965_hw_channel_switch(priv, conf->channel);
- goto out;
- }
-#endif
-
- if (!conf->radio_enabled) {
- IWL_DEBUG_MAC80211("leave - radio disabled\n");
- goto out;
- }
-
- if (iwl_is_rfkill(priv)) {
- IWL_DEBUG_MAC80211("leave - RF kill\n");
- ret = -EIO;
- goto out;
- }
-
- IWL_DEBUG_MAC80211("TX Power old=%d new=%d\n",
- priv->tx_power_user_lmt, conf->power_level);
-
- iwl_set_tx_power(priv, conf->power_level, false);
-
- iwl4965_set_rate(priv);
-
- if (memcmp(&priv->active_rxon,
- &priv->staging_rxon, sizeof(priv->staging_rxon)))
- iwl4965_commit_rxon(priv);
- else
- IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
-
- IWL_DEBUG_MAC80211("leave\n");
-
-out:
- clear_bit(STATUS_CONF_PENDING, &priv->status);
- mutex_unlock(&priv->mutex);
- return ret;
-}
-
-static void iwl4965_config_ap(struct iwl_priv *priv)
-{
- int ret = 0;
- unsigned long flags;
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- /* The following should be done only at AP bring up */
- if (!(iwl_is_associated(priv))) {
-
- /* RXON - unassoc (to set timing command) */
- priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- iwl4965_commit_rxon(priv);
-
- /* RXON Timing */
- memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd));
- iwl4965_setup_rxon_timing(priv);
- ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
- sizeof(priv->rxon_timing), &priv->rxon_timing);
- if (ret)
- IWL_WARNING("REPLY_RXON_TIMING failed - "
- "Attempting to continue.\n");
-
- iwl_set_rxon_chain(priv);
-
- /* FIXME: what should be the assoc_id for AP? */
- priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
- if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
- priv->staging_rxon.flags |=
- RXON_FLG_SHORT_PREAMBLE_MSK;
- else
- priv->staging_rxon.flags &=
- ~RXON_FLG_SHORT_PREAMBLE_MSK;
-
- if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
- if (priv->assoc_capability &
- WLAN_CAPABILITY_SHORT_SLOT_TIME)
- priv->staging_rxon.flags |=
- RXON_FLG_SHORT_SLOT_MSK;
- else
- priv->staging_rxon.flags &=
- ~RXON_FLG_SHORT_SLOT_MSK;
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
- priv->staging_rxon.flags &=
- ~RXON_FLG_SHORT_SLOT_MSK;
- }
- /* restore RXON assoc */
- priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
- iwl4965_commit_rxon(priv);
- spin_lock_irqsave(&priv->lock, flags);
- iwl_activate_qos(priv, 1);
- spin_unlock_irqrestore(&priv->lock, flags);
- iwl_rxon_add_station(priv, iwl_bcast_addr, 0);
- }
- iwl4965_send_beacon_cmd(priv);
-
- /* FIXME - we need to add code here to detect a totally new
- * configuration, reset the AP, unassoc, rxon timing, assoc,
- * clear sta table, add BCAST sta... */
-}
-
-/* temporary */
-static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb);
-
-static int iwl4965_mac_config_interface(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_if_conf *conf)
-{
- struct iwl_priv *priv = hw->priv;
- DECLARE_MAC_BUF(mac);
- unsigned long flags;
- int rc;
-
- if (conf == NULL)
- return -EIO;
-
- if (priv->vif != vif) {
- IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
- return 0;
- }
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS &&
- conf->changed & IEEE80211_IFCC_BEACON) {
- struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
- if (!beacon)
- return -ENOMEM;
- rc = iwl4965_mac_beacon_update(hw, beacon);
- if (rc)
- return rc;
- }
-
- if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
- (!conf->ssid_len)) {
- IWL_DEBUG_MAC80211
- ("Leaving in AP mode because HostAPD is not ready.\n");
- return 0;
- }
-
- if (!iwl_is_alive(priv))
- return -EAGAIN;
-
- mutex_lock(&priv->mutex);
-
- if (conf->bssid)
- IWL_DEBUG_MAC80211("bssid: %s\n",
- print_mac(mac, conf->bssid));
-
-/*
- * very dubious code was here; the probe filtering flag is never set:
- *
- if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
- !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
- */
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
- if (!conf->bssid) {
- conf->bssid = priv->mac_addr;
- memcpy(priv->bssid, priv->mac_addr, ETH_ALEN);
- IWL_DEBUG_MAC80211("bssid was set to: %s\n",
- print_mac(mac, conf->bssid));
- }
- if (priv->ibss_beacon)
- dev_kfree_skb(priv->ibss_beacon);
-
- priv->ibss_beacon = ieee80211_beacon_get(hw, vif);
- }
-
- if (iwl_is_rfkill(priv))
- goto done;
-
- if (conf->bssid && !is_zero_ether_addr(conf->bssid) &&
- !is_multicast_ether_addr(conf->bssid)) {
- /* If there is currently a HW scan going on in the background
- * then we need to cancel it else the RXON below will fail. */
- if (iwl_scan_cancel_timeout(priv, 100)) {
- IWL_WARNING("Aborted scan still in progress "
- "after 100ms\n");
- IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
- mutex_unlock(&priv->mutex);
- return -EAGAIN;
- }
- memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN);
-
- /* TODO: Audit driver for usage of these members and see
- * if mac80211 deprecates them (priv->bssid looks like it
- * shouldn't be there, but I haven't scanned the IBSS code
- * to verify) - jpk */
- memcpy(priv->bssid, conf->bssid, ETH_ALEN);
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
- iwl4965_config_ap(priv);
- else {
- rc = iwl4965_commit_rxon(priv);
- if ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && rc)
- iwl_rxon_add_station(
- priv, priv->active_rxon.bssid_addr, 1);
- }
-
- } else {
- iwl_scan_cancel_timeout(priv, 100);
- priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- iwl4965_commit_rxon(priv);
- }
-
- done:
- spin_lock_irqsave(&priv->lock, flags);
- if (!conf->ssid_len)
- memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
- else
- memcpy(priv->essid, conf->ssid, conf->ssid_len);
-
- priv->essid_len = conf->ssid_len;
- spin_unlock_irqrestore(&priv->lock, flags);
-
- IWL_DEBUG_MAC80211("leave\n");
- mutex_unlock(&priv->mutex);
-
- return 0;
-}
-
-static void iwl4965_configure_filter(struct ieee80211_hw *hw,
- unsigned int changed_flags,
- unsigned int *total_flags,
- int mc_count, struct dev_addr_list *mc_list)
-{
- struct iwl_priv *priv = hw->priv;
-
- if (changed_flags & (*total_flags) & FIF_OTHER_BSS) {
- IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n",
- IEEE80211_IF_TYPE_MNTR,
- changed_flags, *total_flags);
- /* queue work 'cuz mac80211 is holding a lock which
- * prevents us from issuing (synchronous) f/w cmds */
- queue_work(priv->workqueue, &priv->set_monitor);
- }
- *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI |
- FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
-}
-
-static void iwl4965_mac_remove_interface(struct ieee80211_hw *hw,
- struct ieee80211_if_init_conf *conf)
-{
- struct iwl_priv *priv = hw->priv;
-
- IWL_DEBUG_MAC80211("enter\n");
-
- mutex_lock(&priv->mutex);
-
- if (iwl_is_ready_rf(priv)) {
- iwl_scan_cancel_timeout(priv, 100);
- priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- iwl4965_commit_rxon(priv);
- }
- if (priv->vif == conf->vif) {
- priv->vif = NULL;
- memset(priv->bssid, 0, ETH_ALEN);
- memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
- priv->essid_len = 0;
- }
- mutex_unlock(&priv->mutex);
-
- IWL_DEBUG_MAC80211("leave\n");
-
-}
-
-#define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
-static void iwl4965_bss_info_changed(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_bss_conf *bss_conf,
- u32 changes)
-{
- struct iwl_priv *priv = hw->priv;
-
- IWL_DEBUG_MAC80211("changes = 0x%X\n", changes);
-
- if (changes & BSS_CHANGED_ERP_PREAMBLE) {
- IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n",
- bss_conf->use_short_preamble);
- if (bss_conf->use_short_preamble)
- priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
- else
- priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
- }
-
- if (changes & BSS_CHANGED_ERP_CTS_PROT) {
- IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot);
- if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
- priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK;
- else
- priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
- }
-
- if (changes & BSS_CHANGED_HT) {
- IWL_DEBUG_MAC80211("HT %d\n", bss_conf->assoc_ht);
- iwl4965_ht_conf(priv, bss_conf);
- iwl_set_rxon_chain(priv);
- }
-
- if (changes & BSS_CHANGED_ASSOC) {
- IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf->assoc);
- /* This should never happen as this function should
- * never be called from interrupt context. */
- if (WARN_ON_ONCE(in_interrupt()))
- return;
- if (bss_conf->assoc) {
- priv->assoc_id = bss_conf->aid;
- priv->beacon_int = bss_conf->beacon_int;
- priv->power_data.dtim_period = bss_conf->dtim_period;
- priv->timestamp = bss_conf->timestamp;
- priv->assoc_capability = bss_conf->assoc_capability;
- priv->next_scan_jiffies = jiffies +
- IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
- mutex_lock(&priv->mutex);
- iwl4965_post_associate(priv);
- mutex_unlock(&priv->mutex);
- } else {
- priv->assoc_id = 0;
- IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf->assoc);
- }
- } else if (changes && iwl_is_associated(priv) && priv->assoc_id) {
- IWL_DEBUG_MAC80211("Associated Changes %d\n", changes);
- iwl_send_rxon_assoc(priv);
- }
-
-}
-
-static int iwl4965_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
-{
- int rc = 0;
- unsigned long flags;
- struct iwl_priv *priv = hw->priv;
-
- IWL_DEBUG_MAC80211("enter\n");
-
- mutex_lock(&priv->mutex);
- spin_lock_irqsave(&priv->lock, flags);
-
- if (!iwl_is_ready_rf(priv)) {
- rc = -EIO;
- IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
- goto out_unlock;
- }
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { /* APs don't scan */
- rc = -EIO;
- IWL_ERROR("ERROR: APs don't scan\n");
- goto out_unlock;
- }
-
- /* we don't schedule scan within next_scan_jiffies period */
- if (priv->next_scan_jiffies &&
- time_after(priv->next_scan_jiffies, jiffies)) {
- rc = -EAGAIN;
- goto out_unlock;
- }
- /* if we just finished scan ask for delay */
- if (priv->last_scan_jiffies && time_after(priv->last_scan_jiffies +
- IWL_DELAY_NEXT_SCAN, jiffies)) {
- rc = -EAGAIN;
- goto out_unlock;
- }
- if (len) {
- IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
- iwl_escape_essid(ssid, len), (int)len);
-
- priv->one_direct_scan = 1;
- priv->direct_ssid_len = (u8)
- min((u8) len, (u8) IW_ESSID_MAX_SIZE);
- memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len);
- } else
- priv->one_direct_scan = 0;
-
- rc = iwl_scan_initiate(priv);
-
- IWL_DEBUG_MAC80211("leave\n");
-
-out_unlock:
- spin_unlock_irqrestore(&priv->lock, flags);
- mutex_unlock(&priv->mutex);
-
- return rc;
-}
-
-static void iwl4965_mac_update_tkip_key(struct ieee80211_hw *hw,
- struct ieee80211_key_conf *keyconf, const u8 *addr,
- u32 iv32, u16 *phase1key)
-{
- struct iwl_priv *priv = hw->priv;
- u8 sta_id = IWL_INVALID_STATION;
- unsigned long flags;
- __le16 key_flags = 0;
- int i;
- DECLARE_MAC_BUF(mac);
-
- IWL_DEBUG_MAC80211("enter\n");
-
- sta_id = iwl_find_station(priv, addr);
- if (sta_id == IWL_INVALID_STATION) {
- IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
- print_mac(mac, addr));
- return;
- }
-
- iwl_scan_cancel_timeout(priv, 100);
-
- key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
- key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
- key_flags &= ~STA_KEY_FLG_INVALID;
-
- if (sta_id == priv->hw_params.bcast_sta_id)
- key_flags |= STA_KEY_MULTICAST_MSK;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
-
- priv->stations[sta_id].sta.key.key_flags = key_flags;
- priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32;
-
- for (i = 0; i < 5; i++)
- priv->stations[sta_id].sta.key.tkip_rx_ttak[i] =
- cpu_to_le16(phase1key[i]);
-
- priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
- priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
-
- iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
-
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- IWL_DEBUG_MAC80211("leave\n");
-}
-
-static int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
- const u8 *local_addr, const u8 *addr,
- struct ieee80211_key_conf *key)
-{
- struct iwl_priv *priv = hw->priv;
- DECLARE_MAC_BUF(mac);
- int ret = 0;
- u8 sta_id = IWL_INVALID_STATION;
- u8 is_default_wep_key = 0;
-
- IWL_DEBUG_MAC80211("enter\n");
-
- if (priv->hw_params.sw_crypto) {
- IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
- return -EOPNOTSUPP;
- }
-
- if (is_zero_ether_addr(addr))
- /* only support pairwise keys */
- return -EOPNOTSUPP;
-
- sta_id = iwl_find_station(priv, addr);
- if (sta_id == IWL_INVALID_STATION) {
- IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
- print_mac(mac, addr));
- return -EINVAL;
-
- }
-
- mutex_lock(&priv->mutex);
- iwl_scan_cancel_timeout(priv, 100);
- mutex_unlock(&priv->mutex);
-
- /* If we are getting WEP group key and we didn't receive any key mapping
- * so far, we are in legacy wep mode (group key only), otherwise we are
- * in 1X mode.
- * In legacy wep mode, we use another host command to the uCode */
- if (key->alg == ALG_WEP && sta_id == priv->hw_params.bcast_sta_id &&
- priv->iw_mode != IEEE80211_IF_TYPE_AP) {
- if (cmd == SET_KEY)
- is_default_wep_key = !priv->key_mapping_key;
- else
- is_default_wep_key =
- (key->hw_key_idx == HW_KEY_DEFAULT);
- }
-
- switch (cmd) {
- case SET_KEY:
- if (is_default_wep_key)
- ret = iwl_set_default_wep_key(priv, key);
- else
- ret = iwl_set_dynamic_key(priv, key, sta_id);
-
- IWL_DEBUG_MAC80211("enable hwcrypto key\n");
- break;
- case DISABLE_KEY:
- if (is_default_wep_key)
- ret = iwl_remove_default_wep_key(priv, key);
- else
- ret = iwl_remove_dynamic_key(priv, key, sta_id);
-
- IWL_DEBUG_MAC80211("disable hwcrypto key\n");
- break;
- default:
- ret = -EINVAL;
- }
-
- IWL_DEBUG_MAC80211("leave\n");
-
- return ret;
-}
-
-static int iwl4965_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
- const struct ieee80211_tx_queue_params *params)
-{
- struct iwl_priv *priv = hw->priv;
- unsigned long flags;
- int q;
-
- IWL_DEBUG_MAC80211("enter\n");
-
- if (!iwl_is_ready_rf(priv)) {
- IWL_DEBUG_MAC80211("leave - RF not ready\n");
- return -EIO;
- }
-
- if (queue >= AC_NUM) {
- IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue);
- return 0;
- }
-
- if (!priv->qos_data.qos_enable) {
- priv->qos_data.qos_active = 0;
- IWL_DEBUG_MAC80211("leave - qos not enabled\n");
- return 0;
- }
- q = AC_NUM - 1 - queue;
-
- spin_lock_irqsave(&priv->lock, flags);
-
- priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min);
- priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max);
- priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
- priv->qos_data.def_qos_parm.ac[q].edca_txop =
- cpu_to_le16((params->txop * 32));
-
- priv->qos_data.def_qos_parm.ac[q].reserved1 = 0;
- priv->qos_data.qos_active = 1;
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
- iwl_activate_qos(priv, 1);
- else if (priv->assoc_id && iwl_is_associated(priv))
- iwl_activate_qos(priv, 0);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- IWL_DEBUG_MAC80211("leave\n");
- return 0;
-}
-
-static int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
- enum ieee80211_ampdu_mlme_action action,
- const u8 *addr, u16 tid, u16 *ssn)
-{
- struct iwl_priv *priv = hw->priv;
- DECLARE_MAC_BUF(mac);
-
- IWL_DEBUG_HT("A-MPDU action on addr %s tid %d\n",
- print_mac(mac, addr), tid);
-
- if (!(priv->cfg->sku & IWL_SKU_N))
- return -EACCES;
-
- switch (action) {
- case IEEE80211_AMPDU_RX_START:
- IWL_DEBUG_HT("start Rx\n");
- return iwl_rx_agg_start(priv, addr, tid, *ssn);
- case IEEE80211_AMPDU_RX_STOP:
- IWL_DEBUG_HT("stop Rx\n");
- return iwl_rx_agg_stop(priv, addr, tid);
- case IEEE80211_AMPDU_TX_START:
- IWL_DEBUG_HT("start Tx\n");
- return iwl_tx_agg_start(priv, addr, tid, ssn);
- case IEEE80211_AMPDU_TX_STOP:
- IWL_DEBUG_HT("stop Tx\n");
- return iwl_tx_agg_stop(priv, addr, tid);
- default:
- IWL_DEBUG_HT("unknown\n");
- return -EINVAL;
- break;
- }
- return 0;
-}
-static int iwl4965_mac_get_tx_stats(struct ieee80211_hw *hw,
- struct ieee80211_tx_queue_stats *stats)
-{
- struct iwl_priv *priv = hw->priv;
- int i, avail;
- struct iwl_tx_queue *txq;
- struct iwl_queue *q;
- unsigned long flags;
-
- IWL_DEBUG_MAC80211("enter\n");
-
- if (!iwl_is_ready_rf(priv)) {
- IWL_DEBUG_MAC80211("leave - RF not ready\n");
- return -EIO;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
-
- for (i = 0; i < AC_NUM; i++) {
- txq = &priv->txq[i];
- q = &txq->q;
- avail = iwl_queue_space(q);
-
- stats[i].len = q->n_window - avail;
- stats[i].limit = q->n_window - q->high_mark;
- stats[i].count = q->n_window;
-
- }
- spin_unlock_irqrestore(&priv->lock, flags);
-
- IWL_DEBUG_MAC80211("leave\n");
-
- return 0;
-}
-
-static int iwl4965_mac_get_stats(struct ieee80211_hw *hw,
- struct ieee80211_low_level_stats *stats)
-{
- struct iwl_priv *priv = hw->priv;
-
- priv = hw->priv;
- IWL_DEBUG_MAC80211("enter\n");
- IWL_DEBUG_MAC80211("leave\n");
-
- return 0;
-}
-
-static void iwl4965_mac_reset_tsf(struct ieee80211_hw *hw)
-{
- struct iwl_priv *priv = hw->priv;
- unsigned long flags;
-
- mutex_lock(&priv->mutex);
- IWL_DEBUG_MAC80211("enter\n");
-
- spin_lock_irqsave(&priv->lock, flags);
- memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info));
- spin_unlock_irqrestore(&priv->lock, flags);
-
- iwl_reset_qos(priv);
-
- spin_lock_irqsave(&priv->lock, flags);
- priv->assoc_id = 0;
- priv->assoc_capability = 0;
- priv->assoc_station_added = 0;
-
- /* new association get rid of ibss beacon skb */
- if (priv->ibss_beacon)
- dev_kfree_skb(priv->ibss_beacon);
-
- priv->ibss_beacon = NULL;
-
- priv->beacon_int = priv->hw->conf.beacon_int;
- priv->timestamp = 0;
- if ((priv->iw_mode == IEEE80211_IF_TYPE_STA))
- priv->beacon_int = 0;
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- if (!iwl_is_ready_rf(priv)) {
- IWL_DEBUG_MAC80211("leave - not ready\n");
- mutex_unlock(&priv->mutex);
- return;
- }
-
- /* we are restarting association process
- * clear RXON_FILTER_ASSOC_MSK bit
- */
- if (priv->iw_mode != IEEE80211_IF_TYPE_AP) {
- iwl_scan_cancel_timeout(priv, 100);
- priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- iwl4965_commit_rxon(priv);
- }
-
- iwl_power_update_mode(priv, 0);
-
- /* Per mac80211.h: This is only used in IBSS mode... */
- if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
-
- IWL_DEBUG_MAC80211("leave - not in IBSS\n");
- mutex_unlock(&priv->mutex);
- return;
- }
-
- iwl4965_set_rate(priv);
-
- mutex_unlock(&priv->mutex);
-
- IWL_DEBUG_MAC80211("leave\n");
-}
-
-static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
-{
- struct iwl_priv *priv = hw->priv;
- unsigned long flags;
- __le64 timestamp;
-
- mutex_lock(&priv->mutex);
- IWL_DEBUG_MAC80211("enter\n");
-
- if (!iwl_is_ready_rf(priv)) {
- IWL_DEBUG_MAC80211("leave - RF not ready\n");
- mutex_unlock(&priv->mutex);
- return -EIO;
- }
-
- if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
- IWL_DEBUG_MAC80211("leave - not IBSS\n");
- mutex_unlock(&priv->mutex);
- return -EIO;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
-
- if (priv->ibss_beacon)
- dev_kfree_skb(priv->ibss_beacon);
-
- priv->ibss_beacon = skb;
-
- priv->assoc_id = 0;
- timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp;
- priv->timestamp = le64_to_cpu(timestamp) + (priv->beacon_int * 1000);
-
- IWL_DEBUG_MAC80211("leave\n");
- spin_unlock_irqrestore(&priv->lock, flags);
-
- iwl_reset_qos(priv);
-
- iwl4965_post_associate(priv);
-
- mutex_unlock(&priv->mutex);
-
- return 0;
-}
-
-/*****************************************************************************
- *
- * sysfs attributes
- *
- *****************************************************************************/
-
-#ifdef CONFIG_IWLWIFI_DEBUG
-
-/*
- * The following adds a new attribute to the sysfs representation
- * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
- * used for controlling the debug level.
- *
- * See the level definitions in iwl for details.
- */
-
-static ssize_t show_debug_level(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = d->driver_data;
-
- return sprintf(buf, "0x%08X\n", priv->debug_level);
-}
-static ssize_t store_debug_level(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = d->driver_data;
- char *p = (char *)buf;
- u32 val;
-
- val = simple_strtoul(p, &p, 0);
- if (p == buf)
- printk(KERN_INFO DRV_NAME
- ": %s is not in hex or decimal form.\n", buf);
- else
- priv->debug_level = val;
-
- return strnlen(buf, count);
-}
-
-static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
- show_debug_level, store_debug_level);
-
-
-#endif /* CONFIG_IWLWIFI_DEBUG */
-
-
-static ssize_t show_version(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = d->driver_data;
- struct iwl_alive_resp *palive = &priv->card_alive;
- ssize_t pos = 0;
- u16 eeprom_ver;
-
- if (palive->is_valid)
- pos += sprintf(buf + pos,
- "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n"
- "fw type: 0x%01X 0x%01X\n",
- palive->ucode_major, palive->ucode_minor,
- palive->sw_rev[0], palive->sw_rev[1],
- palive->ver_type, palive->ver_subtype);
- else
- pos += sprintf(buf + pos, "fw not loaded\n");
-
- if (priv->eeprom) {
- eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
- pos += sprintf(buf + pos, "EEPROM version: 0x%x\n",
- eeprom_ver);
- } else {
- pos += sprintf(buf + pos, "EEPROM not initialzed\n");
- }
-
- return pos;
-}
-
-static DEVICE_ATTR(version, S_IWUSR | S_IRUGO, show_version, NULL);
-
-static ssize_t show_temperature(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
-
- if (!iwl_is_alive(priv))
- return -EAGAIN;
-
- return sprintf(buf, "%d\n", priv->temperature);
-}
-
-static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
-
-static ssize_t show_tx_power(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
- return sprintf(buf, "%d\n", priv->tx_power_user_lmt);
-}
-
-static ssize_t store_tx_power(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
- char *p = (char *)buf;
- u32 val;
-
- val = simple_strtoul(p, &p, 10);
- if (p == buf)
- printk(KERN_INFO DRV_NAME
- ": %s is not in decimal form.\n", buf);
- else
- iwl_set_tx_power(priv, val, false);
-
- return count;
-}
-
-static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
-
-static ssize_t show_flags(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
-
- return sprintf(buf, "0x%04X\n", priv->active_rxon.flags);
-}
-
-static ssize_t store_flags(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
- u32 flags = simple_strtoul(buf, NULL, 0);
-
- mutex_lock(&priv->mutex);
- if (le32_to_cpu(priv->staging_rxon.flags) != flags) {
- /* Cancel any currently running scans... */
- if (iwl_scan_cancel_timeout(priv, 100))
- IWL_WARNING("Could not cancel scan.\n");
- else {
- IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
- flags);
- priv->staging_rxon.flags = cpu_to_le32(flags);
- iwl4965_commit_rxon(priv);
- }
- }
- mutex_unlock(&priv->mutex);
-
- return count;
-}
-
-static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags);
-
-static ssize_t show_filter_flags(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
-
- return sprintf(buf, "0x%04X\n",
- le32_to_cpu(priv->active_rxon.filter_flags));
-}
-
-static ssize_t store_filter_flags(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
- u32 filter_flags = simple_strtoul(buf, NULL, 0);
-
- mutex_lock(&priv->mutex);
- if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) {
- /* Cancel any currently running scans... */
- if (iwl_scan_cancel_timeout(priv, 100))
- IWL_WARNING("Could not cancel scan.\n");
- else {
- IWL_DEBUG_INFO("Committing rxon.filter_flags = "
- "0x%04X\n", filter_flags);
- priv->staging_rxon.filter_flags =
- cpu_to_le32(filter_flags);
- iwl4965_commit_rxon(priv);
- }
- }
- mutex_unlock(&priv->mutex);
-
- return count;
-}
-
-static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
- store_filter_flags);
-
-#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
-
-static ssize_t show_measurement(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- struct iwl4965_spectrum_notification measure_report;
- u32 size = sizeof(measure_report), len = 0, ofs = 0;
- u8 *data = (u8 *) & measure_report;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lock, flags);
- if (!(priv->measurement_status & MEASUREMENT_READY)) {
- spin_unlock_irqrestore(&priv->lock, flags);
- return 0;
- }
- memcpy(&measure_report, &priv->measure_report, size);
- priv->measurement_status = 0;
- spin_unlock_irqrestore(&priv->lock, flags);
-
- while (size && (PAGE_SIZE - len)) {
- hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
- PAGE_SIZE - len, 1);
- len = strlen(buf);
- if (PAGE_SIZE - len)
- buf[len++] = '\n';
-
- ofs += 16;
- size -= min(size, 16U);
- }
-
- return len;
-}
-
-static ssize_t store_measurement(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- struct ieee80211_measurement_params params = {
- .channel = le16_to_cpu(priv->active_rxon.channel),
- .start_time = cpu_to_le64(priv->last_tsf),
- .duration = cpu_to_le16(1),
- };
- u8 type = IWL_MEASURE_BASIC;
- u8 buffer[32];
- u8 channel;
-
- if (count) {
- char *p = buffer;
- strncpy(buffer, buf, min(sizeof(buffer), count));
- channel = simple_strtoul(p, NULL, 0);
- if (channel)
- params.channel = channel;
-
- p = buffer;
- while (*p && *p != ' ')
- p++;
- if (*p)
- type = simple_strtoul(p + 1, NULL, 0);
- }
-
- IWL_DEBUG_INFO("Invoking measurement of type %d on "
- "channel %d (for '%s')\n", type, params.channel, buf);
- iwl4965_get_measurement(priv, ¶ms, type);
-
- return count;
-}
-
-static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR,
- show_measurement, store_measurement);
-#endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */
-
-static ssize_t store_retry_rate(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
-
- priv->retry_rate = simple_strtoul(buf, NULL, 0);
- if (priv->retry_rate <= 0)
- priv->retry_rate = 1;
-
- return count;
-}
-
-static ssize_t show_retry_rate(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- return sprintf(buf, "%d", priv->retry_rate);
-}
-
-static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate,
- store_retry_rate);
-
-static ssize_t store_power_level(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- int ret;
- int mode;
-
- mode = simple_strtoul(buf, NULL, 0);
- mutex_lock(&priv->mutex);
-
- if (!iwl_is_ready(priv)) {
- ret = -EAGAIN;
- goto out;
- }
-
- ret = iwl_power_set_user_mode(priv, mode);
- if (ret) {
- IWL_DEBUG_MAC80211("failed setting power mode.\n");
- goto out;
- }
- ret = count;
-
- out:
- mutex_unlock(&priv->mutex);
- return ret;
-}
-
-static ssize_t show_power_level(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- int mode = priv->power_data.user_power_setting;
- int system = priv->power_data.system_power_setting;
- int level = priv->power_data.power_mode;
- char *p = buf;
-
- switch (system) {
- case IWL_POWER_SYS_AUTO:
- p += sprintf(p, "SYSTEM:auto");
- break;
- case IWL_POWER_SYS_AC:
- p += sprintf(p, "SYSTEM:ac");
- break;
- case IWL_POWER_SYS_BATTERY:
- p += sprintf(p, "SYSTEM:battery");
- break;
- }
-
- p += sprintf(p, "\tMODE:%s", (mode < IWL_POWER_AUTO)?"fixed":"auto");
- p += sprintf(p, "\tINDEX:%d", level);
- p += sprintf(p, "\n");
- return (p - buf + 1);
-}
-
-static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
- store_power_level);
-
-static ssize_t show_channels(struct device *d,
- struct device_attribute *attr, char *buf)
-{
-
- struct iwl_priv *priv = dev_get_drvdata(d);
- struct ieee80211_channel *channels = NULL;
- const struct ieee80211_supported_band *supp_band = NULL;
- int len = 0, i;
- int count = 0;
-
- if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
- return -EAGAIN;
-
- supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
- channels = supp_band->channels;
- count = supp_band->n_channels;
-
- len += sprintf(&buf[len],
- "Displaying %d channels in 2.4GHz band "
- "(802.11bg):\n", count);
-
- for (i = 0; i < count; i++)
- len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n",
- ieee80211_frequency_to_channel(
- channels[i].center_freq),
- channels[i].max_power,
- channels[i].flags & IEEE80211_CHAN_RADAR ?
- " (IEEE 802.11h required)" : "",
- (!(channels[i].flags & IEEE80211_CHAN_NO_IBSS)
- || (channels[i].flags &
- IEEE80211_CHAN_RADAR)) ? "" :
- ", IBSS",
- channels[i].flags &
- IEEE80211_CHAN_PASSIVE_SCAN ?
- "passive only" : "active/passive");
-
- supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
- channels = supp_band->channels;
- count = supp_band->n_channels;
-
- len += sprintf(&buf[len], "Displaying %d channels in 5.2GHz band "
- "(802.11a):\n", count);
-
- for (i = 0; i < count; i++)
- len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n",
- ieee80211_frequency_to_channel(
- channels[i].center_freq),
- channels[i].max_power,
- channels[i].flags & IEEE80211_CHAN_RADAR ?
- " (IEEE 802.11h required)" : "",
- ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
- || (channels[i].flags &
- IEEE80211_CHAN_RADAR)) ? "" :
- ", IBSS",
- channels[i].flags &
- IEEE80211_CHAN_PASSIVE_SCAN ?
- "passive only" : "active/passive");
-
- return len;
-}
-
-static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);
-
-static ssize_t show_statistics(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- u32 size = sizeof(struct iwl_notif_statistics);
- u32 len = 0, ofs = 0;
- u8 *data = (u8 *) & priv->statistics;
- int rc = 0;
-
- if (!iwl_is_alive(priv))
- return -EAGAIN;
-
- mutex_lock(&priv->mutex);
- rc = iwl_send_statistics_request(priv, 0);
- mutex_unlock(&priv->mutex);
-
- if (rc) {
- len = sprintf(buf,
- "Error sending statistics request: 0x%08X\n", rc);
- return len;
- }
-
- while (size && (PAGE_SIZE - len)) {
- hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
- PAGE_SIZE - len, 1);
- len = strlen(buf);
- if (PAGE_SIZE - len)
- buf[len++] = '\n';
-
- ofs += 16;
- size -= min(size, 16U);
- }
-
- return len;
-}
-
-static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
-
-static ssize_t show_status(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
- if (!iwl_is_alive(priv))
- return -EAGAIN;
- return sprintf(buf, "0x%08x\n", (int)priv->status);
-}
-
-static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
-
-/*****************************************************************************
- *
- * driver setup and teardown
- *
- *****************************************************************************/
-
-static void iwl_setup_deferred_work(struct iwl_priv *priv)
-{
- priv->workqueue = create_workqueue(DRV_NAME);
-
- init_waitqueue_head(&priv->wait_command_queue);
-
- INIT_WORK(&priv->up, iwl4965_bg_up);
- INIT_WORK(&priv->restart, iwl4965_bg_restart);
- INIT_WORK(&priv->rx_replenish, iwl4965_bg_rx_replenish);
- INIT_WORK(&priv->rf_kill, iwl4965_bg_rf_kill);
- INIT_WORK(&priv->beacon_update, iwl4965_bg_beacon_update);
- INIT_WORK(&priv->set_monitor, iwl4965_bg_set_monitor);
- INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
- INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start);
- INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start);
-
- /* FIXME : remove when resolved PENDING */
- INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed);
- iwl_setup_scan_deferred_work(priv);
-
- if (priv->cfg->ops->lib->setup_deferred_work)
- priv->cfg->ops->lib->setup_deferred_work(priv);
-
- init_timer(&priv->statistics_periodic);
- priv->statistics_periodic.data = (unsigned long)priv;
- priv->statistics_periodic.function = iwl4965_bg_statistics_periodic;
-
- tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
- iwl4965_irq_tasklet, (unsigned long)priv);
-}
-
-static void iwl_cancel_deferred_work(struct iwl_priv *priv)
-{
- if (priv->cfg->ops->lib->cancel_deferred_work)
- priv->cfg->ops->lib->cancel_deferred_work(priv);
-
- cancel_delayed_work_sync(&priv->init_alive_start);
- cancel_delayed_work(&priv->scan_check);
- cancel_delayed_work(&priv->alive_start);
- cancel_work_sync(&priv->beacon_update);
- del_timer_sync(&priv->statistics_periodic);
-}
-
-static struct attribute *iwl4965_sysfs_entries[] = {
- &dev_attr_channels.attr,
- &dev_attr_flags.attr,
- &dev_attr_filter_flags.attr,
-#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
- &dev_attr_measurement.attr,
-#endif
- &dev_attr_power_level.attr,
- &dev_attr_retry_rate.attr,
- &dev_attr_statistics.attr,
- &dev_attr_status.attr,
- &dev_attr_temperature.attr,
- &dev_attr_tx_power.attr,
-#ifdef CONFIG_IWLWIFI_DEBUG
- &dev_attr_debug_level.attr,
-#endif
- &dev_attr_version.attr,
-
- NULL
-};
-
-static struct attribute_group iwl4965_attribute_group = {
- .name = NULL, /* put in device directory */
- .attrs = iwl4965_sysfs_entries,
-};
-
-static struct ieee80211_ops iwl4965_hw_ops = {
- .tx = iwl4965_mac_tx,
- .start = iwl4965_mac_start,
- .stop = iwl4965_mac_stop,
- .add_interface = iwl4965_mac_add_interface,
- .remove_interface = iwl4965_mac_remove_interface,
- .config = iwl4965_mac_config,
- .config_interface = iwl4965_mac_config_interface,
- .configure_filter = iwl4965_configure_filter,
- .set_key = iwl4965_mac_set_key,
- .update_tkip_key = iwl4965_mac_update_tkip_key,
- .get_stats = iwl4965_mac_get_stats,
- .get_tx_stats = iwl4965_mac_get_tx_stats,
- .conf_tx = iwl4965_mac_conf_tx,
- .reset_tsf = iwl4965_mac_reset_tsf,
- .bss_info_changed = iwl4965_bss_info_changed,
- .ampdu_action = iwl4965_mac_ampdu_action,
- .hw_scan = iwl4965_mac_hw_scan
-};
-
-static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
- int err = 0;
- struct iwl_priv *priv;
- struct ieee80211_hw *hw;
- struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
- unsigned long flags;
- DECLARE_MAC_BUF(mac);
-
- /************************
- * 1. Allocating HW data
- ************************/
-
- /* Disabling hardware scan means that mac80211 will perform scans
- * "the hard way", rather than using device's scan. */
- if (cfg->mod_params->disable_hw_scan) {
- if (cfg->mod_params->debug & IWL_DL_INFO)
- dev_printk(KERN_DEBUG, &(pdev->dev),
- "Disabling hw_scan\n");
- iwl4965_hw_ops.hw_scan = NULL;
- }
-
- hw = iwl_alloc_all(cfg, &iwl4965_hw_ops);
- if (!hw) {
- err = -ENOMEM;
- goto out;
- }
- priv = hw->priv;
- /* At this point both hw and priv are allocated. */
-
- SET_IEEE80211_DEV(hw, &pdev->dev);
-
- IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
- priv->cfg = cfg;
- priv->pci_dev = pdev;
-
-#ifdef CONFIG_IWLWIFI_DEBUG
- priv->debug_level = priv->cfg->mod_params->debug;
- atomic_set(&priv->restrict_refcnt, 0);
-#endif
-
- /**************************
- * 2. Initializing PCI bus
- **************************/
- if (pci_enable_device(pdev)) {
- err = -ENODEV;
- goto out_ieee80211_free_hw;
- }
-
- pci_set_master(pdev);
-
- err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
- if (!err)
- err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
- if (err) {
- err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
- if (!err)
- err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
- /* both attempts failed: */
- if (err) {
- printk(KERN_WARNING "%s: No suitable DMA available.\n",
- DRV_NAME);
- goto out_pci_disable_device;
- }
- }
-
- err = pci_request_regions(pdev, DRV_NAME);
- if (err)
- goto out_pci_disable_device;
-
- pci_set_drvdata(pdev, priv);
-
- /* We disable the RETRY_TIMEOUT register (0x41) to keep
- * PCI Tx retries from interfering with C3 CPU state */
- pci_write_config_byte(pdev, 0x41, 0x00);
-
- /***********************
- * 3. Read REV register
- ***********************/
- priv->hw_base = pci_iomap(pdev, 0, 0);
- if (!priv->hw_base) {
- err = -ENODEV;
- goto out_pci_release_regions;
- }
-
- IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
- (unsigned long long) pci_resource_len(pdev, 0));
- IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base);
-
- iwl_hw_detect(priv);
- printk(KERN_INFO DRV_NAME
- ": Detected Intel Wireless WiFi Link %s REV=0x%X\n",
- priv->cfg->name, priv->hw_rev);
-
- /* amp init */
- err = priv->cfg->ops->lib->apm_ops.init(priv);
- if (err < 0) {
- IWL_DEBUG_INFO("Failed to init APMG\n");
- goto out_iounmap;
- }
- /*****************
- * 4. Read EEPROM
- *****************/
- /* Read the EEPROM */
- err = iwl_eeprom_init(priv);
- if (err) {
- IWL_ERROR("Unable to init EEPROM\n");
- goto out_iounmap;
- }
- err = iwl_eeprom_check_version(priv);
- if (err)
- goto out_iounmap;
-
- /* extract MAC Address */
- iwl_eeprom_get_mac(priv, priv->mac_addr);
- IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac, priv->mac_addr));
- SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
-
- /************************
- * 5. Setup HW constants
- ************************/
- if (iwl_set_hw_params(priv)) {
- IWL_ERROR("failed to set hw parameters\n");
- goto out_free_eeprom;
- }
-
- /*******************
- * 6. Setup priv
- *******************/
-
- err = iwl_init_drv(priv);
- if (err)
- goto out_free_eeprom;
- /* At this point both hw and priv are initialized. */
-
- /**********************************
- * 7. Initialize module parameters
- **********************************/
-
- /* Disable radio (SW RF KILL) via parameter when loading driver */
- if (priv->cfg->mod_params->disable) {
- set_bit(STATUS_RF_KILL_SW, &priv->status);
- IWL_DEBUG_INFO("Radio disabled.\n");
- }
-
- /********************
- * 8. Setup services
- ********************/
- spin_lock_irqsave(&priv->lock, flags);
- iwl4965_disable_interrupts(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- err = sysfs_create_group(&pdev->dev.kobj, &iwl4965_attribute_group);
- if (err) {
- IWL_ERROR("failed to create sysfs device attributes\n");
- goto out_uninit_drv;
- }
-
-
- iwl_setup_deferred_work(priv);
- iwl_setup_rx_handlers(priv);
-
- /********************
- * 9. Conclude
- ********************/
- pci_save_state(pdev);
- pci_disable_device(pdev);
-
- /**********************************
- * 10. Setup and register mac80211
- **********************************/
-
- err = iwl_setup_mac(priv);
- if (err)
- goto out_remove_sysfs;
-
- err = iwl_dbgfs_register(priv, DRV_NAME);
- if (err)
- IWL_ERROR("failed to create debugfs files\n");
-
- err = iwl_rfkill_init(priv);
- if (err)
- IWL_ERROR("Unable to initialize RFKILL system. "
- "Ignoring error: %d\n", err);
- iwl_power_initialize(priv);
- return 0;
-
- out_remove_sysfs:
- sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
- out_uninit_drv:
- iwl_uninit_drv(priv);
- out_free_eeprom:
- iwl_eeprom_free(priv);
- out_iounmap:
- pci_iounmap(pdev, priv->hw_base);
- out_pci_release_regions:
- pci_release_regions(pdev);
- pci_set_drvdata(pdev, NULL);
- out_pci_disable_device:
- pci_disable_device(pdev);
- out_ieee80211_free_hw:
- ieee80211_free_hw(priv->hw);
- out:
- return err;
-}
-
-static void __devexit iwl4965_pci_remove(struct pci_dev *pdev)
-{
- struct iwl_priv *priv = pci_get_drvdata(pdev);
- unsigned long flags;
-
- if (!priv)
- return;
-
- IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
-
- iwl_dbgfs_unregister(priv);
- sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
-
- if (priv->mac80211_registered) {
- ieee80211_unregister_hw(priv->hw);
- priv->mac80211_registered = 0;
- }
-
- set_bit(STATUS_EXIT_PENDING, &priv->status);
-
- iwl4965_down(priv);
-
- /* make sure we flush any pending irq or
- * tasklet for the driver
- */
- spin_lock_irqsave(&priv->lock, flags);
- iwl4965_disable_interrupts(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- iwl_synchronize_irq(priv);
-
- iwl_rfkill_unregister(priv);
- iwl4965_dealloc_ucode_pci(priv);
-
- if (priv->rxq.bd)
- iwl_rx_queue_free(priv, &priv->rxq);
- iwl_hw_txq_ctx_free(priv);
-
- iwl_clear_stations_table(priv);
- iwl_eeprom_free(priv);
-
-
- /*netif_stop_queue(dev); */
- flush_workqueue(priv->workqueue);
-
- /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes
- * priv->workqueue... so we can't take down the workqueue
- * until now... */
- destroy_workqueue(priv->workqueue);
- priv->workqueue = NULL;
-
- pci_iounmap(pdev, priv->hw_base);
- pci_release_regions(pdev);
- pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
-
- iwl_uninit_drv(priv);
-
- if (priv->ibss_beacon)
- dev_kfree_skb(priv->ibss_beacon);
-
- ieee80211_free_hw(priv->hw);
-}
-
-#ifdef CONFIG_PM
-
-static int iwl4965_pci_suspend(struct pci_dev *pdev, pm_message_t state)
-{
- struct iwl_priv *priv = pci_get_drvdata(pdev);
-
- if (priv->is_open) {
- set_bit(STATUS_IN_SUSPEND, &priv->status);
- iwl4965_mac_stop(priv->hw);
- priv->is_open = 1;
- }
-
- pci_set_power_state(pdev, PCI_D3hot);
-
- return 0;
-}
-
-static int iwl4965_pci_resume(struct pci_dev *pdev)
-{
- struct iwl_priv *priv = pci_get_drvdata(pdev);
-
- pci_set_power_state(pdev, PCI_D0);
-
- if (priv->is_open)
- iwl4965_mac_start(priv->hw);
-
- clear_bit(STATUS_IN_SUSPEND, &priv->status);
- return 0;
-}
-
-#endif /* CONFIG_PM */
-
-/*****************************************************************************
- *
- * driver and module entry point
- *
- *****************************************************************************/
-
-/* Hardware specific file defines the PCI IDs table for that hardware module */
-static struct pci_device_id iwl_hw_card_ids[] = {
- {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)},
- {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)},
-#ifdef CONFIG_IWL5000
- {IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bg_cfg)},
- {IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bg_cfg)},
- {IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg)},
- {IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg)},
- {IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg)},
- {IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg)},
- {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID, iwl5100_agn_cfg)},
- {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID, iwl5300_agn_cfg)},
- {IWL_PCI_DEVICE(0x4236, PCI_ANY_ID, iwl5300_agn_cfg)},
- {IWL_PCI_DEVICE(0x4237, PCI_ANY_ID, iwl5100_agn_cfg)},
- {IWL_PCI_DEVICE(0x423A, PCI_ANY_ID, iwl5350_agn_cfg)},
-#endif /* CONFIG_IWL5000 */
- {0}
-};
-MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);
-
-static struct pci_driver iwl_driver = {
- .name = DRV_NAME,
- .id_table = iwl_hw_card_ids,
- .probe = iwl4965_pci_probe,
- .remove = __devexit_p(iwl4965_pci_remove),
-#ifdef CONFIG_PM
- .suspend = iwl4965_pci_suspend,
- .resume = iwl4965_pci_resume,
-#endif
-};
-
-static int __init iwl4965_init(void)
-{
-
- int ret;
- printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
- printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
-
- ret = iwlagn_rate_control_register();
- if (ret) {
- IWL_ERROR("Unable to register rate control algorithm: %d\n", ret);
- return ret;
- }
-
- ret = pci_register_driver(&iwl_driver);
- if (ret) {
- IWL_ERROR("Unable to initialize PCI module\n");
- goto error_register;
- }
-
- return ret;
-
-error_register:
- iwlagn_rate_control_unregister();
- return ret;
-}
-
-static void __exit iwl4965_exit(void)
-{
- pci_unregister_driver(&iwl_driver);
- iwlagn_rate_control_unregister();
-}
-
-module_exit(iwl4965_exit);
-module_init(iwl4965_init);
projects / GitHub / LineageOS / android_kernel_samsung_universal7580.git / commitdiff