--- /dev/null
+/******************************************************************************
+ *
+ * Copyright(c) 2003 - 2014 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:
+ * Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/if_arp.h>
+
+#include <net/mac80211.h>
+
+#include <asm/div64.h>
+
+#include "iwl-eeprom-read.h"
+#include "iwl-eeprom-parse.h"
+#include "iwl-io.h"
+#include "iwl-trans.h"
+#include "iwl-op-mode.h"
+#include "iwl-drv.h"
+#include "iwl-modparams.h"
+#include "iwl-prph.h"
+
+#include "dev.h"
+#include "calib.h"
+#include "agn.h"
+
+
+/******************************************************************************
+ *
+ * module boiler plate
+ *
+ ******************************************************************************/
+
+#define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
+MODULE_DESCRIPTION(DRV_DESCRIPTION);
+MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
+MODULE_LICENSE("GPL");
+
+static const struct iwl_op_mode_ops iwl_dvm_ops;
+
+void iwl_update_chain_flags(struct iwl_priv *priv)
+{
+ struct iwl_rxon_context *ctx;
+
+ for_each_context(priv, ctx) {
+ iwlagn_set_rxon_chain(priv, ctx);
+ if (ctx->active.rx_chain != ctx->staging.rx_chain)
+ iwlagn_commit_rxon(priv, ctx);
+ }
+}
+
+/* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
+static void iwl_set_beacon_tim(struct iwl_priv *priv,
+ struct iwl_tx_beacon_cmd *tx_beacon_cmd,
+ u8 *beacon, u32 frame_size)
+{
+ u16 tim_idx;
+ struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon;
+
+ /*
+ * The index is relative to frame start but we start looking at the
+ * variable-length part of the beacon.
+ */
+ tim_idx = mgmt->u.beacon.variable - beacon;
+
+ /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
+ while ((tim_idx < (frame_size - 2)) &&
+ (beacon[tim_idx] != WLAN_EID_TIM))
+ tim_idx += beacon[tim_idx+1] + 2;
+
+ /* If TIM field was found, set variables */
+ if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) {
+ tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx);
+ tx_beacon_cmd->tim_size = beacon[tim_idx+1];
+ } else
+ IWL_WARN(priv, "Unable to find TIM Element in beacon\n");
+}
+
+int iwlagn_send_beacon_cmd(struct iwl_priv *priv)
+{
+ struct iwl_tx_beacon_cmd *tx_beacon_cmd;
+ struct iwl_host_cmd cmd = {
+ .id = REPLY_TX_BEACON,
+ };
+ struct ieee80211_tx_info *info;
+ u32 frame_size;
+ u32 rate_flags;
+ u32 rate;
+
+ /*
+ * We have to set up the TX command, the TX Beacon command, and the
+ * beacon contents.
+ */
+
+ lockdep_assert_held(&priv->mutex);
+
+ if (!priv->beacon_ctx) {
+ IWL_ERR(priv, "trying to build beacon w/o beacon context!\n");
+ return 0;
+ }
+
+ if (WARN_ON(!priv->beacon_skb))
+ return -EINVAL;
+
+ /* Allocate beacon command */
+ if (!priv->beacon_cmd)
+ priv->beacon_cmd = kzalloc(sizeof(*tx_beacon_cmd), GFP_KERNEL);
+ tx_beacon_cmd = priv->beacon_cmd;
+ if (!tx_beacon_cmd)
+ return -ENOMEM;
+
+ frame_size = priv->beacon_skb->len;
+
+ /* Set up TX command fields */
+ tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
+ tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id;
+ tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
+ tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK |
+ TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK;
+
+ /* Set up TX beacon command fields */
+ iwl_set_beacon_tim(priv, tx_beacon_cmd, priv->beacon_skb->data,
+ frame_size);
+
+ /* Set up packet rate and flags */
+ info = IEEE80211_SKB_CB(priv->beacon_skb);
+
+ /*
+ * Let's set up the rate at least somewhat correctly;
+ * it will currently not actually be used by the uCode,
+ * it uses the broadcast station's rate instead.
+ */
+ if (info->control.rates[0].idx < 0 ||
+ info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
+ rate = 0;
+ else
+ rate = info->control.rates[0].idx;
+
+ priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant,
+ priv->nvm_data->valid_tx_ant);
+ rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant);
+
+ /* In mac80211, rates for 5 GHz start at 0 */
+ if (info->band == IEEE80211_BAND_5GHZ)
+ rate += IWL_FIRST_OFDM_RATE;
+ else if (rate >= IWL_FIRST_CCK_RATE && rate <= IWL_LAST_CCK_RATE)
+ rate_flags |= RATE_MCS_CCK_MSK;
+
+ tx_beacon_cmd->tx.rate_n_flags =
+ iwl_hw_set_rate_n_flags(rate, rate_flags);
+
+ /* Submit command */
+ cmd.len[0] = sizeof(*tx_beacon_cmd);
+ cmd.data[0] = tx_beacon_cmd;
+ cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY;
+ cmd.len[1] = frame_size;
+ cmd.data[1] = priv->beacon_skb->data;
+ cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY;
+
+ return iwl_dvm_send_cmd(priv, &cmd);
+}
+
+static void iwl_bg_beacon_update(struct work_struct *work)
+{
+ struct iwl_priv *priv =
+ container_of(work, struct iwl_priv, beacon_update);
+ struct sk_buff *beacon;
+
+ mutex_lock(&priv->mutex);
+ if (!priv->beacon_ctx) {
+ IWL_ERR(priv, "updating beacon w/o beacon context!\n");
+ goto out;
+ }
+
+ if (priv->beacon_ctx->vif->type != NL80211_IFTYPE_AP) {
+ /*
+ * The ucode will send beacon notifications even in
+ * IBSS mode, but we don't want to process them. But
+ * we need to defer the type check to here due to
+ * requiring locking around the beacon_ctx access.
+ */
+ goto out;
+ }
+
+ /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
+ beacon = ieee80211_beacon_get(priv->hw, priv->beacon_ctx->vif);
+ if (!beacon) {
+ IWL_ERR(priv, "update beacon failed -- keeping old\n");
+ goto out;
+ }
+
+ /* new beacon skb is allocated every time; dispose previous.*/
+ dev_kfree_skb(priv->beacon_skb);
+
+ priv->beacon_skb = beacon;
+
+ iwlagn_send_beacon_cmd(priv);
+ out:
+ mutex_unlock(&priv->mutex);
+}
+
+static void iwl_bg_bt_runtime_config(struct work_struct *work)
+{
+ struct iwl_priv *priv =
+ container_of(work, struct iwl_priv, bt_runtime_config);
+
+ mutex_lock(&priv->mutex);
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ goto out;
+
+ /* dont send host command if rf-kill is on */
+ if (!iwl_is_ready_rf(priv))
+ goto out;
+
+ iwlagn_send_advance_bt_config(priv);
+out:
+ mutex_unlock(&priv->mutex);
+}
+
+static void iwl_bg_bt_full_concurrency(struct work_struct *work)
+{
+ struct iwl_priv *priv =
+ container_of(work, struct iwl_priv, bt_full_concurrency);
+ struct iwl_rxon_context *ctx;
+
+ mutex_lock(&priv->mutex);
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ goto out;
+
+ /* dont send host command if rf-kill is on */
+ if (!iwl_is_ready_rf(priv))
+ goto out;
+
+ IWL_DEBUG_INFO(priv, "BT coex in %s mode\n",
+ priv->bt_full_concurrent ?
+ "full concurrency" : "3-wire");
+
+ /*
+ * LQ & RXON updated cmds must be sent before BT Config cmd
+ * to avoid 3-wire collisions
+ */
+ for_each_context(priv, ctx) {
+ iwlagn_set_rxon_chain(priv, ctx);
+ iwlagn_commit_rxon(priv, ctx);
+ }
+
+ iwlagn_send_advance_bt_config(priv);
+out:
+ mutex_unlock(&priv->mutex);
+}
+
+int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear)
+{
+ struct iwl_statistics_cmd statistics_cmd = {
+ .configuration_flags =
+ clear ? IWL_STATS_CONF_CLEAR_STATS : 0,
+ };
+
+ if (flags & CMD_ASYNC)
+ return iwl_dvm_send_cmd_pdu(priv, REPLY_STATISTICS_CMD,
+ CMD_ASYNC,
+ sizeof(struct iwl_statistics_cmd),
+ &statistics_cmd);
+ else
+ return iwl_dvm_send_cmd_pdu(priv, REPLY_STATISTICS_CMD, 0,
+ sizeof(struct iwl_statistics_cmd),
+ &statistics_cmd);
+}
+
+/**
+ * iwl_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 iwl_bg_statistics_periodic(unsigned long data)
+{
+ struct iwl_priv *priv = (struct iwl_priv *)data;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ /* dont send host command if rf-kill is on */
+ if (!iwl_is_ready_rf(priv))
+ return;
+
+ iwl_send_statistics_request(priv, CMD_ASYNC, false);
+}
+
+
+static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base,
+ u32 start_idx, u32 num_events,
+ u32 capacity, u32 mode)
+{
+ u32 i;
+ u32 ptr; /* SRAM byte address of log data */
+ u32 ev, time, data; /* event log data */
+ unsigned long reg_flags;
+
+ if (mode == 0)
+ ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32));
+ else
+ ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32));
+
+ /* Make sure device is powered up for SRAM reads */
+ if (!iwl_trans_grab_nic_access(priv->trans, false, ®_flags))
+ return;
+
+ /* Set starting address; reads will auto-increment */
+ iwl_write32(priv->trans, HBUS_TARG_MEM_RADDR, ptr);
+
+ /*
+ * Refuse to read more than would have fit into the log from
+ * the current start_idx. This used to happen due to the race
+ * described below, but now WARN because the code below should
+ * prevent it from happening here.
+ */
+ if (WARN_ON(num_events > capacity - start_idx))
+ num_events = capacity - start_idx;
+
+ /*
+ * "time" is actually "data" for mode 0 (no timestamp).
+ * place event id # at far right for easier visual parsing.
+ */
+ for (i = 0; i < num_events; i++) {
+ ev = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT);
+ time = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT);
+ if (mode == 0) {
+ trace_iwlwifi_dev_ucode_cont_event(
+ priv->trans->dev, 0, time, ev);
+ } else {
+ data = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT);
+ trace_iwlwifi_dev_ucode_cont_event(
+ priv->trans->dev, time, data, ev);
+ }
+ }
+ /* Allow device to power down */
+ iwl_trans_release_nic_access(priv->trans, ®_flags);
+}
+
+static void iwl_continuous_event_trace(struct iwl_priv *priv)
+{
+ u32 capacity; /* event log capacity in # entries */
+ struct {
+ u32 capacity;
+ u32 mode;
+ u32 wrap_counter;
+ u32 write_counter;
+ } __packed read;
+ u32 base; /* SRAM byte address of event log header */
+ u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
+ u32 num_wraps; /* # times uCode wrapped to top of log */
+ u32 next_entry; /* index of next entry to be written by uCode */
+
+ base = priv->device_pointers.log_event_table;
+ if (iwlagn_hw_valid_rtc_data_addr(base)) {
+ iwl_trans_read_mem_bytes(priv->trans, base,
+ &read, sizeof(read));
+ capacity = read.capacity;
+ mode = read.mode;
+ num_wraps = read.wrap_counter;
+ next_entry = read.write_counter;
+ } else
+ return;
+
+ /*
+ * Unfortunately, the uCode doesn't use temporary variables.
+ * Therefore, it can happen that we read next_entry == capacity,
+ * which really means next_entry == 0.
+ */
+ if (unlikely(next_entry == capacity))
+ next_entry = 0;
+ /*
+ * Additionally, the uCode increases the write pointer before
+ * the wraps counter, so if the write pointer is smaller than
+ * the old write pointer (wrap occurred) but we read that no
+ * wrap occurred, we actually read between the next_entry and
+ * num_wraps update (this does happen in practice!!) -- take
+ * that into account by increasing num_wraps.
+ */
+ if (unlikely(next_entry < priv->event_log.next_entry &&
+ num_wraps == priv->event_log.num_wraps))
+ num_wraps++;
+
+ if (num_wraps == priv->event_log.num_wraps) {
+ iwl_print_cont_event_trace(
+ priv, base, priv->event_log.next_entry,
+ next_entry - priv->event_log.next_entry,
+ capacity, mode);
+
+ priv->event_log.non_wraps_count++;
+ } else {
+ if (num_wraps - priv->event_log.num_wraps > 1)
+ priv->event_log.wraps_more_count++;
+ else
+ priv->event_log.wraps_once_count++;
+
+ trace_iwlwifi_dev_ucode_wrap_event(priv->trans->dev,
+ num_wraps - priv->event_log.num_wraps,
+ next_entry, priv->event_log.next_entry);
+
+ if (next_entry < priv->event_log.next_entry) {
+ iwl_print_cont_event_trace(
+ priv, base, priv->event_log.next_entry,
+ capacity - priv->event_log.next_entry,
+ capacity, mode);
+
+ iwl_print_cont_event_trace(
+ priv, base, 0, next_entry, capacity, mode);
+ } else {
+ iwl_print_cont_event_trace(
+ priv, base, next_entry,
+ capacity - next_entry,
+ capacity, mode);
+
+ iwl_print_cont_event_trace(
+ priv, base, 0, next_entry, capacity, mode);
+ }
+ }
+
+ priv->event_log.num_wraps = num_wraps;
+ priv->event_log.next_entry = next_entry;
+}
+
+/**
+ * iwl_bg_ucode_trace - Timer callback to log ucode event
+ *
+ * The timer is continually set to execute every
+ * UCODE_TRACE_PERIOD milliseconds after the last timer expired
+ * this function is to perform continuous uCode event logging operation
+ * if enabled
+ */
+static void iwl_bg_ucode_trace(unsigned long data)
+{
+ struct iwl_priv *priv = (struct iwl_priv *)data;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ if (priv->event_log.ucode_trace) {
+ iwl_continuous_event_trace(priv);
+ /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
+ mod_timer(&priv->ucode_trace,
+ jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
+ }
+}
+
+static void iwl_bg_tx_flush(struct work_struct *work)
+{
+ struct iwl_priv *priv =
+ container_of(work, struct iwl_priv, tx_flush);
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ /* do nothing if rf-kill is on */
+ if (!iwl_is_ready_rf(priv))
+ return;
+
+ IWL_DEBUG_INFO(priv, "device request: flush all tx frames\n");
+ iwlagn_dev_txfifo_flush(priv);
+}
+
+/*
+ * queue/FIFO/AC mapping definitions
+ */
+
+static const u8 iwlagn_bss_ac_to_fifo[] = {
+ IWL_TX_FIFO_VO,
+ IWL_TX_FIFO_VI,
+ IWL_TX_FIFO_BE,
+ IWL_TX_FIFO_BK,
+};
+
+static const u8 iwlagn_bss_ac_to_queue[] = {
+ 0, 1, 2, 3,
+};
+
+static const u8 iwlagn_pan_ac_to_fifo[] = {
+ IWL_TX_FIFO_VO_IPAN,
+ IWL_TX_FIFO_VI_IPAN,
+ IWL_TX_FIFO_BE_IPAN,
+ IWL_TX_FIFO_BK_IPAN,
+};
+
+static const u8 iwlagn_pan_ac_to_queue[] = {
+ 7, 6, 5, 4,
+};
+
+static void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags)
+{
+ int i;
+
+ /*
+ * The default context is always valid,
+ * the PAN context depends on uCode.
+ */
+ priv->valid_contexts = BIT(IWL_RXON_CTX_BSS);
+ if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN)
+ priv->valid_contexts |= BIT(IWL_RXON_CTX_PAN);
+
+ for (i = 0; i < NUM_IWL_RXON_CTX; i++)
+ priv->contexts[i].ctxid = i;
+
+ priv->contexts[IWL_RXON_CTX_BSS].always_active = true;
+ priv->contexts[IWL_RXON_CTX_BSS].is_active = true;
+ priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON;
+ priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING;
+ priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC;
+ priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM;
+ priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID;
+ priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY;
+ priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
+ priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes =
+ BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_MONITOR);
+ priv->contexts[IWL_RXON_CTX_BSS].interface_modes =
+ BIT(NL80211_IFTYPE_STATION);
+ priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP;
+ priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS;
+ priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS;
+ priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS;
+ memcpy(priv->contexts[IWL_RXON_CTX_BSS].ac_to_queue,
+ iwlagn_bss_ac_to_queue, sizeof(iwlagn_bss_ac_to_queue));
+ memcpy(priv->contexts[IWL_RXON_CTX_BSS].ac_to_fifo,
+ iwlagn_bss_ac_to_fifo, sizeof(iwlagn_bss_ac_to_fifo));
+
+ priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON;
+ priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd =
+ REPLY_WIPAN_RXON_TIMING;
+ priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd =
+ REPLY_WIPAN_RXON_ASSOC;
+ priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM;
+ priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN;
+ priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY;
+ priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID;
+ priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION;
+ priv->contexts[IWL_RXON_CTX_PAN].interface_modes =
+ BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP);
+
+ priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP;
+ priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA;
+ priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P;
+ memcpy(priv->contexts[IWL_RXON_CTX_PAN].ac_to_queue,
+ iwlagn_pan_ac_to_queue, sizeof(iwlagn_pan_ac_to_queue));
+ memcpy(priv->contexts[IWL_RXON_CTX_PAN].ac_to_fifo,
+ iwlagn_pan_ac_to_fifo, sizeof(iwlagn_pan_ac_to_fifo));
+ priv->contexts[IWL_RXON_CTX_PAN].mcast_queue = IWL_IPAN_MCAST_QUEUE;
+
+ BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
+}
+
+static void iwl_rf_kill_ct_config(struct iwl_priv *priv)
+{
+ struct iwl_ct_kill_config cmd;
+ struct iwl_ct_kill_throttling_config adv_cmd;
+ int ret = 0;
+
+ iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_CLR,
+ CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
+
+ priv->thermal_throttle.ct_kill_toggle = false;
+
+ if (priv->lib->support_ct_kill_exit) {
+ adv_cmd.critical_temperature_enter =
+ cpu_to_le32(priv->hw_params.ct_kill_threshold);
+ adv_cmd.critical_temperature_exit =
+ cpu_to_le32(priv->hw_params.ct_kill_exit_threshold);
+
+ ret = iwl_dvm_send_cmd_pdu(priv,
+ REPLY_CT_KILL_CONFIG_CMD,
+ 0, sizeof(adv_cmd), &adv_cmd);
+ if (ret)
+ IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
+ else
+ IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
+ "succeeded, critical temperature enter is %d,"
+ "exit is %d\n",
+ priv->hw_params.ct_kill_threshold,
+ priv->hw_params.ct_kill_exit_threshold);
+ } else {
+ cmd.critical_temperature_R =
+ cpu_to_le32(priv->hw_params.ct_kill_threshold);
+
+ ret = iwl_dvm_send_cmd_pdu(priv,
+ REPLY_CT_KILL_CONFIG_CMD,
+ 0, sizeof(cmd), &cmd);
+ if (ret)
+ IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
+ else
+ IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
+ "succeeded, "
+ "critical temperature is %d\n",
+ priv->hw_params.ct_kill_threshold);
+ }
+}
+
+static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg)
+{
+ struct iwl_calib_cfg_cmd calib_cfg_cmd;
+ struct iwl_host_cmd cmd = {
+ .id = CALIBRATION_CFG_CMD,
+ .len = { sizeof(struct iwl_calib_cfg_cmd), },
+ .data = { &calib_cfg_cmd, },
+ };
+
+ memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
+ calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_RT_CFG_ALL;
+ calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg);
+
+ return iwl_dvm_send_cmd(priv, &cmd);
+}
+
+
+static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant)
+{
+ struct iwl_tx_ant_config_cmd tx_ant_cmd = {
+ .valid = cpu_to_le32(valid_tx_ant),
+ };
+
+ if (IWL_UCODE_API(priv->fw->ucode_ver) > 1) {
+ IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant);
+ return iwl_dvm_send_cmd_pdu(priv, TX_ANT_CONFIGURATION_CMD, 0,
+ sizeof(struct iwl_tx_ant_config_cmd),
+ &tx_ant_cmd);
+ } else {
+ IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n");
+ return -EOPNOTSUPP;
+ }
+}
+
+static void iwl_send_bt_config(struct iwl_priv *priv)
+{
+ struct iwl_bt_cmd bt_cmd = {
+ .lead_time = BT_LEAD_TIME_DEF,
+ .max_kill = BT_MAX_KILL_DEF,
+ .kill_ack_mask = 0,
+ .kill_cts_mask = 0,
+ };
+
+ if (!iwlwifi_mod_params.bt_coex_active)
+ bt_cmd.flags = BT_COEX_DISABLE;
+ else
+ bt_cmd.flags = BT_COEX_ENABLE;
+
+ priv->bt_enable_flag = bt_cmd.flags;
+ IWL_DEBUG_INFO(priv, "BT coex %s\n",
+ (bt_cmd.flags == BT_COEX_DISABLE) ? "disable" : "active");
+
+ if (iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG,
+ 0, sizeof(struct iwl_bt_cmd), &bt_cmd))
+ IWL_ERR(priv, "failed to send BT Coex Config\n");
+}
+
+/**
+ * iwl_alive_start - called after REPLY_ALIVE notification received
+ * from protocol/runtime uCode (initialization uCode's
+ * Alive gets handled by iwl_init_alive_start()).
+ */
+int iwl_alive_start(struct iwl_priv *priv)
+{
+ int ret = 0;
+ struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
+
+ IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
+
+ /* After the ALIVE response, we can send host commands to the uCode */
+ set_bit(STATUS_ALIVE, &priv->status);
+
+ if (iwl_is_rfkill(priv))
+ return -ERFKILL;
+
+ if (priv->event_log.ucode_trace) {
+ /* start collecting data now */
+ mod_timer(&priv->ucode_trace, jiffies);
+ }
+
+ /* download priority table before any calibration request */
+ if (priv->lib->bt_params &&
+ priv->lib->bt_params->advanced_bt_coexist) {
+ /* Configure Bluetooth device coexistence support */
+ if (priv->lib->bt_params->bt_sco_disable)
+ priv->bt_enable_pspoll = false;
+ else
+ priv->bt_enable_pspoll = true;
+
+ priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
+ priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
+ priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
+ iwlagn_send_advance_bt_config(priv);
+ priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS;
+ priv->cur_rssi_ctx = NULL;
+
+ iwl_send_prio_tbl(priv);
+
+ /* FIXME: w/a to force change uCode BT state machine */
+ ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
+ BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
+ if (ret)
+ return ret;
+ ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_CLOSE,
+ BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
+ if (ret)
+ return ret;
+ } else if (priv->lib->bt_params) {
+ /*
+ * default is 2-wire BT coexexistence support
+ */
+ iwl_send_bt_config(priv);
+ }
+
+ /*
+ * Perform runtime calibrations, including DC calibration.
+ */
+ iwlagn_send_calib_cfg_rt(priv, IWL_CALIB_CFG_DC_IDX);
+
+ ieee80211_wake_queues(priv->hw);
+
+ /* Configure Tx antenna selection based on H/W config */
+ iwlagn_send_tx_ant_config(priv, priv->nvm_data->valid_tx_ant);
+
+ if (iwl_is_associated_ctx(ctx) && !priv->wowlan) {
+ struct iwl_rxon_cmd *active_rxon =
+ (struct iwl_rxon_cmd *)&ctx->active;
+ /* apply any changes in staging */
+ ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
+ active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ } else {
+ struct iwl_rxon_context *tmp;
+ /* Initialize our rx_config data */
+ for_each_context(priv, tmp)
+ iwl_connection_init_rx_config(priv, tmp);
+
+ iwlagn_set_rxon_chain(priv, ctx);
+ }
+
+ if (!priv->wowlan) {
+ /* WoWLAN ucode will not reply in the same way, skip it */
+ iwl_reset_run_time_calib(priv);
+ }
+
+ set_bit(STATUS_READY, &priv->status);
+
+ /* Configure the adapter for unassociated operation */
+ ret = iwlagn_commit_rxon(priv, ctx);
+ if (ret)
+ return ret;
+
+ /* At this point, the NIC is initialized and operational */
+ iwl_rf_kill_ct_config(priv);
+
+ IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
+
+ return iwl_power_update_mode(priv, true);
+}
+
+/**
+ * iwl_clear_driver_stations - clear knowledge of all stations from driver
+ * @priv: iwl priv struct
+ *
+ * This is called during iwl_down() to make sure that in the case
+ * we're coming there from a hardware restart mac80211 will be
+ * able to reconfigure stations -- if we're getting there in the
+ * normal down flow then the stations will already be cleared.
+ */
+static void iwl_clear_driver_stations(struct iwl_priv *priv)
+{
+ struct iwl_rxon_context *ctx;
+
+ spin_lock_bh(&priv->sta_lock);
+ memset(priv->stations, 0, sizeof(priv->stations));
+ priv->num_stations = 0;
+
+ priv->ucode_key_table = 0;
+
+ for_each_context(priv, ctx) {
+ /*
+ * Remove all key information that is not stored as part
+ * of station information since mac80211 may not have had
+ * a chance to remove all the keys. When device is
+ * reconfigured by mac80211 after an error all keys will
+ * be reconfigured.
+ */
+ memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys));
+ ctx->key_mapping_keys = 0;
+ }
+
+ spin_unlock_bh(&priv->sta_lock);
+}
+
+void iwl_down(struct iwl_priv *priv)
+{
+ int exit_pending;
+
+ IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
+
+ lockdep_assert_held(&priv->mutex);
+
+ iwl_scan_cancel_timeout(priv, 200);
+
+ exit_pending =
+ test_and_set_bit(STATUS_EXIT_PENDING, &priv->status);
+
+ iwl_clear_ucode_stations(priv, NULL);
+ iwl_dealloc_bcast_stations(priv);
+ iwl_clear_driver_stations(priv);
+
+ /* reset BT coex data */
+ priv->bt_status = 0;
+ priv->cur_rssi_ctx = NULL;
+ priv->bt_is_sco = 0;
+ if (priv->lib->bt_params)
+ priv->bt_traffic_load =
+ priv->lib->bt_params->bt_init_traffic_load;
+ else
+ priv->bt_traffic_load = 0;
+ priv->bt_full_concurrent = false;
+ priv->bt_ci_compliance = 0;
+
+ /* 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);
+
+ if (priv->mac80211_registered)
+ ieee80211_stop_queues(priv->hw);
+
+ priv->ucode_loaded = false;
+ iwl_trans_stop_device(priv->trans);
+
+ /* Set num_aux_in_flight must be done after the transport is stopped */
+ atomic_set(&priv->num_aux_in_flight, 0);
+
+ /* Clear out all status bits but a few that are stable across reset */
+ priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
+ STATUS_RF_KILL_HW |
+ test_bit(STATUS_FW_ERROR, &priv->status) <<
+ STATUS_FW_ERROR |
+ test_bit(STATUS_EXIT_PENDING, &priv->status) <<
+ STATUS_EXIT_PENDING;
+
+ dev_kfree_skb(priv->beacon_skb);
+ priv->beacon_skb = NULL;
+}
+
+/*****************************************************************************
+ *
+ * Workqueue callbacks
+ *
+ *****************************************************************************/
+
+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);
+ iwl_sensitivity_calibration(priv);
+ }
+
+ mutex_unlock(&priv->mutex);
+}
+
+void iwlagn_prepare_restart(struct iwl_priv *priv)
+{
+ bool bt_full_concurrent;
+ u8 bt_ci_compliance;
+ u8 bt_load;
+ u8 bt_status;
+ bool bt_is_sco;
+ int i;
+
+ lockdep_assert_held(&priv->mutex);
+
+ priv->is_open = 0;
+
+ /*
+ * __iwl_down() will clear the BT status variables,
+ * which is correct, but when we restart we really
+ * want to keep them so restore them afterwards.
+ *
+ * The restart process will later pick them up and
+ * re-configure the hw when we reconfigure the BT
+ * command.
+ */
+ bt_full_concurrent = priv->bt_full_concurrent;
+ bt_ci_compliance = priv->bt_ci_compliance;
+ bt_load = priv->bt_traffic_load;
+ bt_status = priv->bt_status;
+ bt_is_sco = priv->bt_is_sco;
+
+ iwl_down(priv);
+
+ priv->bt_full_concurrent = bt_full_concurrent;
+ priv->bt_ci_compliance = bt_ci_compliance;
+ priv->bt_traffic_load = bt_load;
+ priv->bt_status = bt_status;
+ priv->bt_is_sco = bt_is_sco;
+
+ /* reset aggregation queues */
+ for (i = IWLAGN_FIRST_AMPDU_QUEUE; i < IWL_MAX_HW_QUEUES; i++)
+ priv->queue_to_mac80211[i] = IWL_INVALID_MAC80211_QUEUE;
+ /* and stop counts */
+ for (i = 0; i < IWL_MAX_HW_QUEUES; i++)
+ atomic_set(&priv->queue_stop_count[i], 0);
+
+ memset(priv->agg_q_alloc, 0, sizeof(priv->agg_q_alloc));
+}
+
+static void iwl_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;
+
+ if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) {
+ mutex_lock(&priv->mutex);
+ iwlagn_prepare_restart(priv);
+ mutex_unlock(&priv->mutex);
+ iwl_cancel_deferred_work(priv);
+ if (priv->mac80211_registered)
+ ieee80211_restart_hw(priv->hw);
+ else
+ IWL_ERR(priv,
+ "Cannot request restart before registrating with mac80211\n");
+ } else {
+ WARN_ON(1);
+ }
+}
+
+/*****************************************************************************
+ *
+ * driver setup and teardown
+ *
+ *****************************************************************************/
+
+static void iwl_setup_deferred_work(struct iwl_priv *priv)
+{
+ priv->workqueue = create_singlethread_workqueue(DRV_NAME);
+
+ INIT_WORK(&priv->restart, iwl_bg_restart);
+ INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update);
+ INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
+ INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush);
+ INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency);
+ INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config);
+
+ iwl_setup_scan_deferred_work(priv);
+
+ if (priv->lib->bt_params)
+ iwlagn_bt_setup_deferred_work(priv);
+
+ setup_timer(&priv->statistics_periodic, iwl_bg_statistics_periodic,
+ (unsigned long)priv);
+
+ setup_timer(&priv->ucode_trace, iwl_bg_ucode_trace,
+ (unsigned long)priv);
+}
+
+void iwl_cancel_deferred_work(struct iwl_priv *priv)
+{
+ if (priv->lib->bt_params)
+ iwlagn_bt_cancel_deferred_work(priv);
+
+ cancel_work_sync(&priv->run_time_calib_work);
+ cancel_work_sync(&priv->beacon_update);
+
+ iwl_cancel_scan_deferred_work(priv);
+
+ cancel_work_sync(&priv->bt_full_concurrency);
+ cancel_work_sync(&priv->bt_runtime_config);
+
+ del_timer_sync(&priv->statistics_periodic);
+ del_timer_sync(&priv->ucode_trace);
+}
+
+static int iwl_init_drv(struct iwl_priv *priv)
+{
+ spin_lock_init(&priv->sta_lock);
+
+ mutex_init(&priv->mutex);
+
+ INIT_LIST_HEAD(&priv->calib_results);
+
+ priv->band = IEEE80211_BAND_2GHZ;
+
+ priv->plcp_delta_threshold = priv->lib->plcp_delta_threshold;
+
+ priv->iw_mode = NL80211_IFTYPE_STATION;
+ priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
+ priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
+ priv->agg_tids_count = 0;
+
+ priv->rx_statistics_jiffies = jiffies;
+
+ /* Choose which receivers/antennas to use */
+ iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]);
+
+ iwl_init_scan_params(priv);
+
+ /* init bt coex */
+ if (priv->lib->bt_params &&
+ priv->lib->bt_params->advanced_bt_coexist) {
+ priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
+ priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
+ priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
+ priv->bt_on_thresh = BT_ON_THRESHOLD_DEF;
+ priv->bt_duration = BT_DURATION_LIMIT_DEF;
+ priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF;
+ }
+
+ return 0;
+}
+
+static void iwl_uninit_drv(struct iwl_priv *priv)
+{
+ kfree(priv->scan_cmd);
+ kfree(priv->beacon_cmd);
+ kfree(rcu_dereference_raw(priv->noa_data));
+ iwl_calib_free_results(priv);
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+ kfree(priv->wowlan_sram);
+#endif
+}
+
+static void iwl_set_hw_params(struct iwl_priv *priv)
+{
+ if (priv->cfg->ht_params)
+ priv->hw_params.use_rts_for_aggregation =
+ priv->cfg->ht_params->use_rts_for_aggregation;
+
+ /* Device-specific setup */
+ priv->lib->set_hw_params(priv);
+}
+
+
+
+/* show what optional capabilities we have */
+static void iwl_option_config(struct iwl_priv *priv)
+{
+#ifdef CONFIG_IWLWIFI_DEBUG
+ IWL_INFO(priv, "CONFIG_IWLWIFI_DEBUG enabled\n");
+#else
+ IWL_INFO(priv, "CONFIG_IWLWIFI_DEBUG disabled\n");
+#endif
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+ IWL_INFO(priv, "CONFIG_IWLWIFI_DEBUGFS enabled\n");
+#else
+ IWL_INFO(priv, "CONFIG_IWLWIFI_DEBUGFS disabled\n");
+#endif
+
+#ifdef CONFIG_IWLWIFI_DEVICE_TRACING
+ IWL_INFO(priv, "CONFIG_IWLWIFI_DEVICE_TRACING enabled\n");
+#else
+ IWL_INFO(priv, "CONFIG_IWLWIFI_DEVICE_TRACING disabled\n");
+#endif
+}
+
+static int iwl_eeprom_init_hw_params(struct iwl_priv *priv)
+{
+ struct iwl_nvm_data *data = priv->nvm_data;
+
+ if (data->sku_cap_11n_enable &&
+ !priv->cfg->ht_params) {
+ IWL_ERR(priv, "Invalid 11n configuration\n");
+ return -EINVAL;
+ }
+
+ if (!data->sku_cap_11n_enable && !data->sku_cap_band_24GHz_enable &&
+ !data->sku_cap_band_52GHz_enable) {
+ IWL_ERR(priv, "Invalid device sku\n");
+ return -EINVAL;
+ }
+
+ IWL_DEBUG_INFO(priv,
+ "Device SKU: 24GHz %s %s, 52GHz %s %s, 11.n %s %s\n",
+ data->sku_cap_band_24GHz_enable ? "" : "NOT", "enabled",
+ data->sku_cap_band_52GHz_enable ? "" : "NOT", "enabled",
+ data->sku_cap_11n_enable ? "" : "NOT", "enabled");
+
+ priv->hw_params.tx_chains_num =
+ num_of_ant(data->valid_tx_ant);
+ if (priv->cfg->rx_with_siso_diversity)
+ priv->hw_params.rx_chains_num = 1;
+ else
+ priv->hw_params.rx_chains_num =
+ num_of_ant(data->valid_rx_ant);
+
+ IWL_DEBUG_INFO(priv, "Valid Tx ant: 0x%X, Valid Rx ant: 0x%X\n",
+ data->valid_tx_ant,
+ data->valid_rx_ant);
+
+ return 0;
+}
+
+static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
+ const struct iwl_cfg *cfg,
+ const struct iwl_fw *fw,
+ struct dentry *dbgfs_dir)
+{
+ struct iwl_priv *priv;
+ struct ieee80211_hw *hw;
+ struct iwl_op_mode *op_mode;
+ u16 num_mac;
+ u32 ucode_flags;
+ struct iwl_trans_config trans_cfg = {};
+ static const u8 no_reclaim_cmds[] = {
+ REPLY_RX_PHY_CMD,
+ REPLY_RX_MPDU_CMD,
+ REPLY_COMPRESSED_BA,
+ STATISTICS_NOTIFICATION,
+ REPLY_TX,
+ };
+ int i;
+
+ /************************
+ * 1. Allocating HW data
+ ************************/
+ hw = iwl_alloc_all();
+ if (!hw) {
+ pr_err("%s: Cannot allocate network device\n", cfg->name);
+ goto out;
+ }
+
+ op_mode = hw->priv;
+ op_mode->ops = &iwl_dvm_ops;
+ priv = IWL_OP_MODE_GET_DVM(op_mode);
+ priv->trans = trans;
+ priv->dev = trans->dev;
+ priv->cfg = cfg;
+ priv->fw = fw;
+
+ switch (priv->cfg->device_family) {
+ case IWL_DEVICE_FAMILY_1000:
+ case IWL_DEVICE_FAMILY_100:
+ priv->lib = &iwl_dvm_1000_cfg;
+ break;
+ case IWL_DEVICE_FAMILY_2000:
+ priv->lib = &iwl_dvm_2000_cfg;
+ break;
+ case IWL_DEVICE_FAMILY_105:
+ priv->lib = &iwl_dvm_105_cfg;
+ break;
+ case IWL_DEVICE_FAMILY_2030:
+ case IWL_DEVICE_FAMILY_135:
+ priv->lib = &iwl_dvm_2030_cfg;
+ break;
+ case IWL_DEVICE_FAMILY_5000:
+ priv->lib = &iwl_dvm_5000_cfg;
+ break;
+ case IWL_DEVICE_FAMILY_5150:
+ priv->lib = &iwl_dvm_5150_cfg;
+ break;
+ case IWL_DEVICE_FAMILY_6000:
+ case IWL_DEVICE_FAMILY_6000i:
+ priv->lib = &iwl_dvm_6000_cfg;
+ break;
+ case IWL_DEVICE_FAMILY_6005:
+ priv->lib = &iwl_dvm_6005_cfg;
+ break;
+ case IWL_DEVICE_FAMILY_6050:
+ case IWL_DEVICE_FAMILY_6150:
+ priv->lib = &iwl_dvm_6050_cfg;
+ break;
+ case IWL_DEVICE_FAMILY_6030:
+ priv->lib = &iwl_dvm_6030_cfg;
+ break;
+ default:
+ break;
+ }
+
+ if (WARN_ON(!priv->lib))
+ goto out_free_hw;
+
+ /*
+ * Populate the state variables that the transport layer needs
+ * to know about.
+ */
+ trans_cfg.op_mode = op_mode;
+ trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
+ trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
+ trans_cfg.rx_buf_size_8k = iwlwifi_mod_params.amsdu_size_8K;
+ trans_cfg.cmd_q_wdg_timeout = IWL_WATCHDOG_DISABLED;
+
+ trans_cfg.command_names = iwl_dvm_cmd_strings;
+ trans_cfg.cmd_fifo = IWLAGN_CMD_FIFO_NUM;
+
+ WARN_ON(sizeof(priv->transport_queue_stop) * BITS_PER_BYTE <
+ priv->cfg->base_params->num_of_queues);
+
+ ucode_flags = fw->ucode_capa.flags;
+
+ if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN) {
+ priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN;
+ trans_cfg.cmd_queue = IWL_IPAN_CMD_QUEUE_NUM;
+ } else {
+ priv->sta_key_max_num = STA_KEY_MAX_NUM;
+ trans_cfg.cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
+ }
+
+ /* Configure transport layer */
+ iwl_trans_configure(priv->trans, &trans_cfg);
+
+ trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
+ trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_res_start);
+
+ /* At this point both hw and priv are allocated. */
+
+ SET_IEEE80211_DEV(priv->hw, priv->trans->dev);
+
+ iwl_option_config(priv);
+
+ IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
+
+ /* is antenna coupling more than 35dB ? */
+ priv->bt_ant_couple_ok =
+ (iwlwifi_mod_params.ant_coupling >
+ IWL_BT_ANTENNA_COUPLING_THRESHOLD) ?
+ true : false;
+
+ /* bt channel inhibition enabled*/
+ priv->bt_ch_announce = true;
+ IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n",
+ (priv->bt_ch_announce) ? "On" : "Off");
+
+ /* these spin locks will be used in apm_ops.init and EEPROM access
+ * we should init now
+ */
+ spin_lock_init(&priv->statistics.lock);
+
+ /***********************
+ * 2. Read REV register
+ ***********************/
+ IWL_INFO(priv, "Detected %s, REV=0x%X\n",
+ priv->cfg->name, priv->trans->hw_rev);
+
+ if (iwl_trans_start_hw(priv->trans))
+ goto out_free_hw;
+
+ /* Read the EEPROM */
+ if (iwl_read_eeprom(priv->trans, &priv->eeprom_blob,
+ &priv->eeprom_blob_size)) {
+ IWL_ERR(priv, "Unable to init EEPROM\n");
+ goto out_free_hw;
+ }
+
+ /* Reset chip to save power until we load uCode during "up". */
+ iwl_trans_stop_device(priv->trans);
+
+ priv->nvm_data = iwl_parse_eeprom_data(priv->trans->dev, priv->cfg,
+ priv->eeprom_blob,
+ priv->eeprom_blob_size);
+ if (!priv->nvm_data)
+ goto out_free_eeprom_blob;
+
+ if (iwl_nvm_check_version(priv->nvm_data, priv->trans))
+ goto out_free_eeprom;
+
+ if (iwl_eeprom_init_hw_params(priv))
+ goto out_free_eeprom;
+
+ /* extract MAC Address */
+ memcpy(priv->addresses[0].addr, priv->nvm_data->hw_addr, ETH_ALEN);
+ IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr);
+ priv->hw->wiphy->addresses = priv->addresses;
+ priv->hw->wiphy->n_addresses = 1;
+ num_mac = priv->nvm_data->n_hw_addrs;
+ if (num_mac > 1) {
+ memcpy(priv->addresses[1].addr, priv->addresses[0].addr,
+ ETH_ALEN);
+ priv->addresses[1].addr[5]++;
+ priv->hw->wiphy->n_addresses++;
+ }
+
+ /************************
+ * 4. Setup HW constants
+ ************************/
+ iwl_set_hw_params(priv);
+
+ if (!(priv->nvm_data->sku_cap_ipan_enable)) {
+ IWL_DEBUG_INFO(priv, "Your EEPROM disabled PAN\n");
+ ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
+ /*
+ * if not PAN, then don't support P2P -- might be a uCode
+ * packaging bug or due to the eeprom check above
+ */
+ priv->sta_key_max_num = STA_KEY_MAX_NUM;
+ trans_cfg.cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
+
+ /* Configure transport layer again*/
+ iwl_trans_configure(priv->trans, &trans_cfg);
+ }
+
+ /*******************
+ * 5. Setup priv
+ *******************/
+ for (i = 0; i < IWL_MAX_HW_QUEUES; i++) {
+ priv->queue_to_mac80211[i] = IWL_INVALID_MAC80211_QUEUE;
+ if (i < IWLAGN_FIRST_AMPDU_QUEUE &&
+ i != IWL_DEFAULT_CMD_QUEUE_NUM &&
+ i != IWL_IPAN_CMD_QUEUE_NUM)
+ priv->queue_to_mac80211[i] = i;
+ atomic_set(&priv->queue_stop_count[i], 0);
+ }
+
+ if (iwl_init_drv(priv))
+ goto out_free_eeprom;
+
+ /* At this point both hw and priv are initialized. */
+
+ /********************
+ * 6. Setup services
+ ********************/
+ iwl_setup_deferred_work(priv);
+ iwl_setup_rx_handlers(priv);
+
+ iwl_power_initialize(priv);
+ iwl_tt_initialize(priv);
+
+ snprintf(priv->hw->wiphy->fw_version,
+ sizeof(priv->hw->wiphy->fw_version),
+ "%s", fw->fw_version);
+
+ priv->new_scan_threshold_behaviour =
+ !!(ucode_flags & IWL_UCODE_TLV_FLAGS_NEWSCAN);
+
+ priv->phy_calib_chain_noise_reset_cmd =
+ fw->ucode_capa.standard_phy_calibration_size;
+ priv->phy_calib_chain_noise_gain_cmd =
+ fw->ucode_capa.standard_phy_calibration_size + 1;
+
+ /* initialize all valid contexts */
+ iwl_init_context(priv, ucode_flags);
+
+ /**************************************************
+ * This is still part of probe() in a sense...
+ *
+ * 7. Setup and register with mac80211 and debugfs
+ **************************************************/
+ if (iwlagn_mac_setup_register(priv, &fw->ucode_capa))
+ goto out_destroy_workqueue;
+
+ if (iwl_dbgfs_register(priv, dbgfs_dir))
+ goto out_mac80211_unregister;
+
+ return op_mode;
+
+out_mac80211_unregister:
+ iwlagn_mac_unregister(priv);
+out_destroy_workqueue:
+ iwl_tt_exit(priv);
+ iwl_cancel_deferred_work(priv);
+ destroy_workqueue(priv->workqueue);
+ priv->workqueue = NULL;
+ iwl_uninit_drv(priv);
+out_free_eeprom_blob:
+ kfree(priv->eeprom_blob);
+out_free_eeprom:
+ iwl_free_nvm_data(priv->nvm_data);
+out_free_hw:
+ ieee80211_free_hw(priv->hw);
+out:
+ op_mode = NULL;
+ return op_mode;
+}
+
+static void iwl_op_mode_dvm_stop(struct iwl_op_mode *op_mode)
+{
+ struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
+
+ IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
+
+ iwlagn_mac_unregister(priv);
+
+ iwl_tt_exit(priv);
+
+ kfree(priv->eeprom_blob);
+ iwl_free_nvm_data(priv->nvm_data);
+
+ /*netif_stop_queue(dev); */
+ flush_workqueue(priv->workqueue);
+
+ /* ieee80211_unregister_hw calls iwlagn_mac_stop, which flushes
+ * priv->workqueue... so we can't take down the workqueue
+ * until now... */
+ destroy_workqueue(priv->workqueue);
+ priv->workqueue = NULL;
+
+ iwl_uninit_drv(priv);
+
+ dev_kfree_skb(priv->beacon_skb);
+
+ iwl_trans_op_mode_leave(priv->trans);
+ ieee80211_free_hw(priv->hw);
+}
+
+static const char * const desc_lookup_text[] = {
+ "OK",
+ "FAIL",
+ "BAD_PARAM",
+ "BAD_CHECKSUM",
+ "NMI_INTERRUPT_WDG",
+ "SYSASSERT",
+ "FATAL_ERROR",
+ "BAD_COMMAND",
+ "HW_ERROR_TUNE_LOCK",
+ "HW_ERROR_TEMPERATURE",
+ "ILLEGAL_CHAN_FREQ",
+ "VCC_NOT_STABLE",
+ "FH_ERROR",
+ "NMI_INTERRUPT_HOST",
+ "NMI_INTERRUPT_ACTION_PT",
+ "NMI_INTERRUPT_UNKNOWN",
+ "UCODE_VERSION_MISMATCH",
+ "HW_ERROR_ABS_LOCK",
+ "HW_ERROR_CAL_LOCK_FAIL",
+ "NMI_INTERRUPT_INST_ACTION_PT",
+ "NMI_INTERRUPT_DATA_ACTION_PT",
+ "NMI_TRM_HW_ER",
+ "NMI_INTERRUPT_TRM",
+ "NMI_INTERRUPT_BREAK_POINT",
+ "DEBUG_0",
+ "DEBUG_1",
+ "DEBUG_2",
+ "DEBUG_3",
+};
+
+static struct { char *name; u8 num; } advanced_lookup[] = {
+ { "NMI_INTERRUPT_WDG", 0x34 },
+ { "SYSASSERT", 0x35 },
+ { "UCODE_VERSION_MISMATCH", 0x37 },
+ { "BAD_COMMAND", 0x38 },
+ { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
+ { "FATAL_ERROR", 0x3D },
+ { "NMI_TRM_HW_ERR", 0x46 },
+ { "NMI_INTERRUPT_TRM", 0x4C },
+ { "NMI_INTERRUPT_BREAK_POINT", 0x54 },
+ { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
+ { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
+ { "NMI_INTERRUPT_HOST", 0x66 },
+ { "NMI_INTERRUPT_ACTION_PT", 0x7C },
+ { "NMI_INTERRUPT_UNKNOWN", 0x84 },
+ { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
+ { "ADVANCED_SYSASSERT", 0 },
+};
+
+static const char *desc_lookup(u32 num)
+{
+ int i;
+ int max = ARRAY_SIZE(desc_lookup_text);
+
+ if (num < max)
+ return desc_lookup_text[num];
+
+ max = ARRAY_SIZE(advanced_lookup) - 1;
+ for (i = 0; i < max; i++) {
+ if (advanced_lookup[i].num == num)
+ break;
+ }
+ return advanced_lookup[i].name;
+}
+
+#define ERROR_START_OFFSET (1 * sizeof(u32))
+#define ERROR_ELEM_SIZE (7 * sizeof(u32))
+
+static void iwl_dump_nic_error_log(struct iwl_priv *priv)
+{
+ struct iwl_trans *trans = priv->trans;
+ u32 base;
+ struct iwl_error_event_table table;
+
+ base = priv->device_pointers.error_event_table;
+ if (priv->cur_ucode == IWL_UCODE_INIT) {
+ if (!base)
+ base = priv->fw->init_errlog_ptr;
+ } else {
+ if (!base)
+ base = priv->fw->inst_errlog_ptr;
+ }
+
+ if (!iwlagn_hw_valid_rtc_data_addr(base)) {
+ IWL_ERR(priv,
+ "Not valid error log pointer 0x%08X for %s uCode\n",
+ base,
+ (priv->cur_ucode == IWL_UCODE_INIT)
+ ? "Init" : "RT");
+ return;
+ }
+
+ /*TODO: Update dbgfs with ISR error stats obtained below */
+ iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table));
+
+ if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) {
+ IWL_ERR(trans, "Start IWL Error Log Dump:\n");
+ IWL_ERR(trans, "Status: 0x%08lX, count: %d\n",
+ priv->status, table.valid);
+ }
+
+ trace_iwlwifi_dev_ucode_error(trans->dev, table.error_id, table.tsf_low,
+ table.data1, table.data2, table.line,
+ table.blink1, table.blink2, table.ilink1,
+ table.ilink2, table.bcon_time, table.gp1,
+ table.gp2, table.gp3, table.ucode_ver,
+ table.hw_ver, 0, table.brd_ver);
+ IWL_ERR(priv, "0x%08X | %-28s\n", table.error_id,
+ desc_lookup(table.error_id));
+ IWL_ERR(priv, "0x%08X | uPc\n", table.pc);
+ IWL_ERR(priv, "0x%08X | branchlink1\n", table.blink1);
+ IWL_ERR(priv, "0x%08X | branchlink2\n", table.blink2);
+ IWL_ERR(priv, "0x%08X | interruptlink1\n", table.ilink1);
+ IWL_ERR(priv, "0x%08X | interruptlink2\n", table.ilink2);
+ IWL_ERR(priv, "0x%08X | data1\n", table.data1);
+ IWL_ERR(priv, "0x%08X | data2\n", table.data2);
+ IWL_ERR(priv, "0x%08X | line\n", table.line);
+ IWL_ERR(priv, "0x%08X | beacon time\n", table.bcon_time);
+ IWL_ERR(priv, "0x%08X | tsf low\n", table.tsf_low);
+ IWL_ERR(priv, "0x%08X | tsf hi\n", table.tsf_hi);
+ IWL_ERR(priv, "0x%08X | time gp1\n", table.gp1);
+ IWL_ERR(priv, "0x%08X | time gp2\n", table.gp2);
+ IWL_ERR(priv, "0x%08X | time gp3\n", table.gp3);
+ IWL_ERR(priv, "0x%08X | uCode version\n", table.ucode_ver);
+ IWL_ERR(priv, "0x%08X | hw version\n", table.hw_ver);
+ IWL_ERR(priv, "0x%08X | board version\n", table.brd_ver);
+ IWL_ERR(priv, "0x%08X | hcmd\n", table.hcmd);
+ IWL_ERR(priv, "0x%08X | isr0\n", table.isr0);
+ IWL_ERR(priv, "0x%08X | isr1\n", table.isr1);
+ IWL_ERR(priv, "0x%08X | isr2\n", table.isr2);
+ IWL_ERR(priv, "0x%08X | isr3\n", table.isr3);
+ IWL_ERR(priv, "0x%08X | isr4\n", table.isr4);
+ IWL_ERR(priv, "0x%08X | isr_pref\n", table.isr_pref);
+ IWL_ERR(priv, "0x%08X | wait_event\n", table.wait_event);
+ IWL_ERR(priv, "0x%08X | l2p_control\n", table.l2p_control);
+ IWL_ERR(priv, "0x%08X | l2p_duration\n", table.l2p_duration);
+ IWL_ERR(priv, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid);
+ IWL_ERR(priv, "0x%08X | l2p_addr_match\n", table.l2p_addr_match);
+ IWL_ERR(priv, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel);
+ IWL_ERR(priv, "0x%08X | timestamp\n", table.u_timestamp);
+ IWL_ERR(priv, "0x%08X | flow_handler\n", table.flow_handler);
+}
+
+#define EVENT_START_OFFSET (4 * sizeof(u32))
+
+/**
+ * iwl_print_event_log - Dump error event log to syslog
+ *
+ */
+static int iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
+ u32 num_events, u32 mode,
+ int pos, char **buf, size_t bufsz)
+{
+ u32 i;
+ u32 base; /* SRAM byte address of event log header */
+ u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
+ u32 ptr; /* SRAM byte address of log data */
+ u32 ev, time, data; /* event log data */
+ unsigned long reg_flags;
+
+ struct iwl_trans *trans = priv->trans;
+
+ if (num_events == 0)
+ return pos;
+
+ base = priv->device_pointers.log_event_table;
+ if (priv->cur_ucode == IWL_UCODE_INIT) {
+ if (!base)
+ base = priv->fw->init_evtlog_ptr;
+ } else {
+ if (!base)
+ base = priv->fw->inst_evtlog_ptr;
+ }
+
+ if (mode == 0)
+ event_size = 2 * sizeof(u32);
+ else
+ event_size = 3 * sizeof(u32);
+
+ ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
+
+ /* Make sure device is powered up for SRAM reads */
+ if (!iwl_trans_grab_nic_access(trans, false, ®_flags))
+ return pos;
+
+ /* Set starting address; reads will auto-increment */
+ iwl_write32(trans, HBUS_TARG_MEM_RADDR, ptr);
+
+ /* "time" is actually "data" for mode 0 (no timestamp).
+ * place event id # at far right for easier visual parsing. */
+ for (i = 0; i < num_events; i++) {
+ ev = iwl_read32(trans, HBUS_TARG_MEM_RDAT);
+ time = iwl_read32(trans, HBUS_TARG_MEM_RDAT);
+ if (mode == 0) {
+ /* data, ev */
+ if (bufsz) {
+ pos += scnprintf(*buf + pos, bufsz - pos,
+ "EVT_LOG:0x%08x:%04u\n",
+ time, ev);
+ } else {
+ trace_iwlwifi_dev_ucode_event(trans->dev, 0,
+ time, ev);
+ IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n",
+ time, ev);
+ }
+ } else {
+ data = iwl_read32(trans, HBUS_TARG_MEM_RDAT);
+ if (bufsz) {
+ pos += scnprintf(*buf + pos, bufsz - pos,
+ "EVT_LOGT:%010u:0x%08x:%04u\n",
+ time, data, ev);
+ } else {
+ IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n",
+ time, data, ev);
+ trace_iwlwifi_dev_ucode_event(trans->dev, time,
+ data, ev);
+ }
+ }
+ }
+
+ /* Allow device to power down */
+ iwl_trans_release_nic_access(trans, ®_flags);
+ return pos;
+}
+
+/**
+ * iwl_print_last_event_logs - Dump the newest # of event log to syslog
+ */
+static int iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
+ u32 num_wraps, u32 next_entry,
+ u32 size, u32 mode,
+ int pos, char **buf, size_t bufsz)
+{
+ /*
+ * display the newest DEFAULT_LOG_ENTRIES entries
+ * i.e the entries just before the next ont that uCode would fill.
+ */
+ if (num_wraps) {
+ if (next_entry < size) {
+ pos = iwl_print_event_log(priv,
+ capacity - (size - next_entry),
+ size - next_entry, mode,
+ pos, buf, bufsz);
+ pos = iwl_print_event_log(priv, 0,
+ next_entry, mode,
+ pos, buf, bufsz);
+ } else
+ pos = iwl_print_event_log(priv, next_entry - size,
+ size, mode, pos, buf, bufsz);
+ } else {
+ if (next_entry < size) {
+ pos = iwl_print_event_log(priv, 0, next_entry,
+ mode, pos, buf, bufsz);
+ } else {
+ pos = iwl_print_event_log(priv, next_entry - size,
+ size, mode, pos, buf, bufsz);
+ }
+ }
+ return pos;
+}
+
+#define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)
+
+int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
+ char **buf)
+{
+ u32 base; /* SRAM byte address of event log header */
+ u32 capacity; /* event log capacity in # entries */
+ u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
+ u32 num_wraps; /* # times uCode wrapped to top of log */
+ u32 next_entry; /* index of next entry to be written by uCode */
+ u32 size; /* # entries that we'll print */
+ u32 logsize;
+ int pos = 0;
+ size_t bufsz = 0;
+ struct iwl_trans *trans = priv->trans;
+
+ base = priv->device_pointers.log_event_table;
+ if (priv->cur_ucode == IWL_UCODE_INIT) {
+ logsize = priv->fw->init_evtlog_size;
+ if (!base)
+ base = priv->fw->init_evtlog_ptr;
+ } else {
+ logsize = priv->fw->inst_evtlog_size;
+ if (!base)
+ base = priv->fw->inst_evtlog_ptr;
+ }
+
+ if (!iwlagn_hw_valid_rtc_data_addr(base)) {
+ IWL_ERR(priv,
+ "Invalid event log pointer 0x%08X for %s uCode\n",
+ base,
+ (priv->cur_ucode == IWL_UCODE_INIT)
+ ? "Init" : "RT");
+ return -EINVAL;
+ }
+
+ /* event log header */
+ capacity = iwl_trans_read_mem32(trans, base);
+ mode = iwl_trans_read_mem32(trans, base + (1 * sizeof(u32)));
+ num_wraps = iwl_trans_read_mem32(trans, base + (2 * sizeof(u32)));
+ next_entry = iwl_trans_read_mem32(trans, base + (3 * sizeof(u32)));
+
+ if (capacity > logsize) {
+ IWL_ERR(priv, "Log capacity %d is bogus, limit to %d "
+ "entries\n", capacity, logsize);
+ capacity = logsize;
+ }
+
+ if (next_entry > logsize) {
+ IWL_ERR(priv, "Log write index %d is bogus, limit to %d\n",
+ next_entry, logsize);
+ next_entry = logsize;
+ }
+
+ size = num_wraps ? capacity : next_entry;
+
+ /* bail out if nothing in log */
+ if (size == 0) {
+ IWL_ERR(trans, "Start IWL Event Log Dump: nothing in log\n");
+ return pos;
+ }
+
+ if (!(iwl_have_debug_level(IWL_DL_FW_ERRORS)) && !full_log)
+ size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
+ ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
+ IWL_ERR(priv, "Start IWL Event Log Dump: display last %u entries\n",
+ size);
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+ if (buf) {
+ if (full_log)
+ bufsz = capacity * 48;
+ else
+ bufsz = size * 48;
+ *buf = kmalloc(bufsz, GFP_KERNEL);
+ if (!*buf)
+ return -ENOMEM;
+ }
+ if (iwl_have_debug_level(IWL_DL_FW_ERRORS) || full_log) {
+ /*
+ * if uCode has wrapped back to top of log,
+ * start at the oldest entry,
+ * i.e the next one that uCode would fill.
+ */
+ if (num_wraps)
+ pos = iwl_print_event_log(priv, next_entry,
+ capacity - next_entry, mode,
+ pos, buf, bufsz);
+ /* (then/else) start at top of log */
+ pos = iwl_print_event_log(priv, 0,
+ next_entry, mode, pos, buf, bufsz);
+ } else
+ pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
+ next_entry, size, mode,
+ pos, buf, bufsz);
+#else
+ pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
+ next_entry, size, mode,
+ pos, buf, bufsz);
+#endif
+ return pos;
+}
+
+static void iwlagn_fw_error(struct iwl_priv *priv, bool ondemand)
+{
+ unsigned int reload_msec;
+ unsigned long reload_jiffies;
+
+ if (iwl_have_debug_level(IWL_DL_FW_ERRORS))
+ iwl_print_rx_config_cmd(priv, IWL_RXON_CTX_BSS);
+
+ /* uCode is no longer loaded. */
+ priv->ucode_loaded = false;
+
+ /* Set the FW error flag -- cleared on iwl_down */
+ set_bit(STATUS_FW_ERROR, &priv->status);
+
+ iwl_abort_notification_waits(&priv->notif_wait);
+
+ /* Keep the restart process from trying to send host
+ * commands by clearing the ready bit */
+ clear_bit(STATUS_READY, &priv->status);
+
+ if (!ondemand) {
+ /*
+ * If firmware keep reloading, then it indicate something
+ * serious wrong and firmware having problem to recover
+ * from it. Instead of keep trying which will fill the syslog
+ * and hang the system, let's just stop it
+ */
+ reload_jiffies = jiffies;
+ reload_msec = jiffies_to_msecs((long) reload_jiffies -
+ (long) priv->reload_jiffies);
+ priv->reload_jiffies = reload_jiffies;
+ if (reload_msec <= IWL_MIN_RELOAD_DURATION) {
+ priv->reload_count++;
+ if (priv->reload_count >= IWL_MAX_CONTINUE_RELOAD_CNT) {
+ IWL_ERR(priv, "BUG_ON, Stop restarting\n");
+ return;
+ }
+ } else
+ priv->reload_count = 0;
+ }
+
+ if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
+ if (iwlwifi_mod_params.restart_fw) {
+ IWL_DEBUG_FW_ERRORS(priv,
+ "Restarting adapter due to uCode error.\n");
+ queue_work(priv->workqueue, &priv->restart);
+ } else
+ IWL_DEBUG_FW_ERRORS(priv,
+ "Detected FW error, but not restarting\n");
+ }
+}
+
+static void iwl_nic_error(struct iwl_op_mode *op_mode)
+{
+ struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
+
+ IWL_ERR(priv, "Loaded firmware version: %s\n",
+ priv->fw->fw_version);
+
+ iwl_dump_nic_error_log(priv);
+ iwl_dump_nic_event_log(priv, false, NULL);
+
+ iwlagn_fw_error(priv, false);
+}
+
+static void iwl_cmd_queue_full(struct iwl_op_mode *op_mode)
+{
+ struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
+
+ if (!iwl_check_for_ct_kill(priv)) {
+ IWL_ERR(priv, "Restarting adapter queue is full\n");
+ iwlagn_fw_error(priv, false);
+ }
+}
+
+#define EEPROM_RF_CONFIG_TYPE_MAX 0x3
+
+static void iwl_nic_config(struct iwl_op_mode *op_mode)
+{
+ struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
+
+ /* SKU Control */
+ iwl_trans_set_bits_mask(priv->trans, CSR_HW_IF_CONFIG_REG,
+ CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH |
+ CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP,
+ (CSR_HW_REV_STEP(priv->trans->hw_rev) <<
+ CSR_HW_IF_CONFIG_REG_POS_MAC_STEP) |
+ (CSR_HW_REV_DASH(priv->trans->hw_rev) <<
+ CSR_HW_IF_CONFIG_REG_POS_MAC_DASH));
+
+ /* write radio config values to register */
+ if (priv->nvm_data->radio_cfg_type <= EEPROM_RF_CONFIG_TYPE_MAX) {
+ u32 reg_val =
+ priv->nvm_data->radio_cfg_type <<
+ CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE |
+ priv->nvm_data->radio_cfg_step <<
+ CSR_HW_IF_CONFIG_REG_POS_PHY_STEP |
+ priv->nvm_data->radio_cfg_dash <<
+ CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;
+
+ iwl_trans_set_bits_mask(priv->trans, CSR_HW_IF_CONFIG_REG,
+ CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
+ CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
+ CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH,
+ reg_val);
+
+ IWL_INFO(priv, "Radio type=0x%x-0x%x-0x%x\n",
+ priv->nvm_data->radio_cfg_type,
+ priv->nvm_data->radio_cfg_step,
+ priv->nvm_data->radio_cfg_dash);
+ } else {
+ WARN_ON(1);
+ }
+
+ /* set CSR_HW_CONFIG_REG for uCode use */
+ iwl_set_bit(priv->trans, CSR_HW_IF_CONFIG_REG,
+ CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
+ CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
+
+ /* W/A : NIC is stuck in a reset state after Early PCIe power off
+ * (PCIe power is lost before PERST# is asserted),
+ * causing ME FW to lose ownership and not being able to obtain it back.
+ */
+ iwl_set_bits_mask_prph(priv->trans, APMG_PS_CTRL_REG,
+ APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
+ ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
+
+ if (priv->lib->nic_config)
+ priv->lib->nic_config(priv);
+}
+
+static void iwl_wimax_active(struct iwl_op_mode *op_mode)
+{
+ struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
+
+ clear_bit(STATUS_READY, &priv->status);
+ IWL_ERR(priv, "RF is used by WiMAX\n");
+}
+
+static void iwl_stop_sw_queue(struct iwl_op_mode *op_mode, int queue)
+{
+ struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
+ int mq = priv->queue_to_mac80211[queue];
+
+ if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE))
+ return;
+
+ if (atomic_inc_return(&priv->queue_stop_count[mq]) > 1) {
+ IWL_DEBUG_TX_QUEUES(priv,
+ "queue %d (mac80211 %d) already stopped\n",
+ queue, mq);
+ return;
+ }
+
+ set_bit(mq, &priv->transport_queue_stop);
+ ieee80211_stop_queue(priv->hw, mq);
+}
+
+static void iwl_wake_sw_queue(struct iwl_op_mode *op_mode, int queue)
+{
+ struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
+ int mq = priv->queue_to_mac80211[queue];
+
+ if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE))
+ return;
+
+ if (atomic_dec_return(&priv->queue_stop_count[mq]) > 0) {
+ IWL_DEBUG_TX_QUEUES(priv,
+ "queue %d (mac80211 %d) already awake\n",
+ queue, mq);
+ return;
+ }
+
+ clear_bit(mq, &priv->transport_queue_stop);
+
+ if (!priv->passive_no_rx)
+ ieee80211_wake_queue(priv->hw, mq);
+}
+
+void iwlagn_lift_passive_no_rx(struct iwl_priv *priv)
+{
+ int mq;
+
+ if (!priv->passive_no_rx)
+ return;
+
+ for (mq = 0; mq < IWLAGN_FIRST_AMPDU_QUEUE; mq++) {
+ if (!test_bit(mq, &priv->transport_queue_stop)) {
+ IWL_DEBUG_TX_QUEUES(priv, "Wake queue %d\n", mq);
+ ieee80211_wake_queue(priv->hw, mq);
+ } else {
+ IWL_DEBUG_TX_QUEUES(priv, "Don't wake queue %d\n", mq);
+ }
+ }
+
+ priv->passive_no_rx = false;
+}
+
+static void iwl_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
+{
+ struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
+ struct ieee80211_tx_info *info;
+
+ info = IEEE80211_SKB_CB(skb);
+ iwl_trans_free_tx_cmd(priv->trans, info->driver_data[1]);
+ ieee80211_free_txskb(priv->hw, skb);
+}
+
+static bool iwl_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
+{
+ struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
+
+ if (state)
+ set_bit(STATUS_RF_KILL_HW, &priv->status);
+ else
+ clear_bit(STATUS_RF_KILL_HW, &priv->status);
+
+ wiphy_rfkill_set_hw_state(priv->hw->wiphy, state);
+
+ return false;
+}
+
+static void iwl_napi_add(struct iwl_op_mode *op_mode,
+ struct napi_struct *napi,
+ struct net_device *napi_dev,
+ int (*poll)(struct napi_struct *, int),
+ int weight)
+{
+ struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
+
+ ieee80211_napi_add(priv->hw, napi, napi_dev, poll, weight);
+}
+
+static const struct iwl_op_mode_ops iwl_dvm_ops = {
+ .start = iwl_op_mode_dvm_start,
+ .stop = iwl_op_mode_dvm_stop,
+ .rx = iwl_rx_dispatch,
+ .queue_full = iwl_stop_sw_queue,
+ .queue_not_full = iwl_wake_sw_queue,
+ .hw_rf_kill = iwl_set_hw_rfkill_state,
+ .free_skb = iwl_free_skb,
+ .nic_error = iwl_nic_error,
+ .cmd_queue_full = iwl_cmd_queue_full,
+ .nic_config = iwl_nic_config,
+ .wimax_active = iwl_wimax_active,
+ .napi_add = iwl_napi_add,
+};
+
+/*****************************************************************************
+ *
+ * driver and module entry point
+ *
+ *****************************************************************************/
+static int __init iwl_init(void)
+{
+
+ int ret;
+
+ ret = iwlagn_rate_control_register();
+ if (ret) {
+ pr_err("Unable to register rate control algorithm: %d\n", ret);
+ return ret;
+ }
+
+ ret = iwl_opmode_register("iwldvm", &iwl_dvm_ops);
+ if (ret) {
+ pr_err("Unable to register op_mode: %d\n", ret);
+ iwlagn_rate_control_unregister();
+ }
+
+ return ret;
+}
+module_init(iwl_init);
+
+static void __exit iwl_exit(void)
+{
+ iwl_opmode_deregister("iwldvm");
+ iwlagn_rate_control_unregister();
+}
+module_exit(iwl_exit);
Code Review / kvmfornfv.git / blobdiff