From 25bc2deda9e8a430ed49f507a1120fb2c86abf33 Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Mon, 21 Jul 2008 02:40:13 +0300 Subject: iwlwifi: rename iwl4965-base.c to iwl-agn.c This patch renames iwl4965-base.c to iwl-agn.c Signed-off-by: Tomas Winkler Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/Makefile | 6 +- drivers/net/wireless/iwlwifi/iwl-agn.c | 4523 +++++++++++++++++++++++++++ drivers/net/wireless/iwlwifi/iwl4965-base.c | 4523 --------------------------- 3 files changed, 4525 insertions(+), 4527 deletions(-) create mode 100644 drivers/net/wireless/iwlwifi/iwl-agn.c delete mode 100644 drivers/net/wireless/iwlwifi/iwl4965-base.c (limited to 'drivers/net/wireless') diff --git a/drivers/net/wireless/iwlwifi/Makefile b/drivers/net/wireless/iwlwifi/Makefile index f50d2f8fd5c9..6bf3998736b5 100644 --- a/drivers/net/wireless/iwlwifi/Makefile +++ b/drivers/net/wireless/iwlwifi/Makefile @@ -11,10 +11,8 @@ iwl3945-objs := iwl3945-base.o iwl-3945.o iwl-3945-rs.o 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 diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c new file mode 100644 index 000000000000..f71b3f3f81ba --- /dev/null +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -0,0 +1,4523 @@ +/****************************************************************************** + * + * 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 + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + *****************************************************************************/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#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); diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c deleted file mode 100644 index f71b3f3f81ba..000000000000 --- a/drivers/net/wireless/iwlwifi/iwl4965-base.c +++ /dev/null @@ -1,4523 +0,0 @@ -/****************************************************************************** - * - * 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 - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - *****************************************************************************/ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -#include - -#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); -- cgit v1.2.2