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path: root/drivers/net/wireless/iwmc3200wifi/main.c
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Diffstat (limited to 'drivers/net/wireless/iwmc3200wifi/main.c')
-rw-r--r--drivers/net/wireless/iwmc3200wifi/main.c847
1 files changed, 0 insertions, 847 deletions
diff --git a/drivers/net/wireless/iwmc3200wifi/main.c b/drivers/net/wireless/iwmc3200wifi/main.c
deleted file mode 100644
index 1f868b166d10..000000000000
--- a/drivers/net/wireless/iwmc3200wifi/main.c
+++ /dev/null
@@ -1,847 +0,0 @@
-/*
- * Intel Wireless Multicomm 3200 WiFi driver
- *
- * Copyright (C) 2009 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * Intel Corporation <ilw@linux.intel.com>
- * Samuel Ortiz <samuel.ortiz@intel.com>
- * Zhu Yi <yi.zhu@intel.com>
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/netdevice.h>
-#include <linux/sched.h>
-#include <linux/ieee80211.h>
-#include <linux/wireless.h>
-#include <linux/slab.h>
-#include <linux/moduleparam.h>
-
-#include "iwm.h"
-#include "debug.h"
-#include "bus.h"
-#include "umac.h"
-#include "commands.h"
-#include "hal.h"
-#include "fw.h"
-#include "rx.h"
-
-static struct iwm_conf def_iwm_conf = {
-
- .sdio_ior_timeout = 5000,
- .calib_map = BIT(CALIB_CFG_DC_IDX) |
- BIT(CALIB_CFG_LO_IDX) |
- BIT(CALIB_CFG_TX_IQ_IDX) |
- BIT(CALIB_CFG_RX_IQ_IDX) |
- BIT(SHILOH_PHY_CALIBRATE_BASE_BAND_CMD),
- .expected_calib_map = BIT(PHY_CALIBRATE_DC_CMD) |
- BIT(PHY_CALIBRATE_LO_CMD) |
- BIT(PHY_CALIBRATE_TX_IQ_CMD) |
- BIT(PHY_CALIBRATE_RX_IQ_CMD) |
- BIT(SHILOH_PHY_CALIBRATE_BASE_BAND_CMD),
- .ct_kill_entry = 110,
- .ct_kill_exit = 110,
- .reset_on_fatal_err = 1,
- .auto_connect = 1,
- .enable_qos = 1,
- .mode = UMAC_MODE_BSS,
-
- /* UMAC configuration */
- .power_index = 0,
- .frag_threshold = IEEE80211_MAX_FRAG_THRESHOLD,
- .rts_threshold = IEEE80211_MAX_RTS_THRESHOLD,
- .cts_to_self = 0,
-
- .assoc_timeout = 2,
- .roam_timeout = 10,
- .wireless_mode = WIRELESS_MODE_11A | WIRELESS_MODE_11G |
- WIRELESS_MODE_11N,
-
- /* IBSS */
- .ibss_band = UMAC_BAND_2GHZ,
- .ibss_channel = 1,
-
- .mac_addr = {0x00, 0x02, 0xb3, 0x01, 0x02, 0x03},
-};
-
-static bool modparam_reset;
-module_param_named(reset, modparam_reset, bool, 0644);
-MODULE_PARM_DESC(reset, "reset on firmware errors (default 0 [not reset])");
-
-static bool modparam_wimax_enable = true;
-module_param_named(wimax_enable, modparam_wimax_enable, bool, 0644);
-MODULE_PARM_DESC(wimax_enable, "Enable wimax core (default 1 [wimax enabled])");
-
-int iwm_mode_to_nl80211_iftype(int mode)
-{
- switch (mode) {
- case UMAC_MODE_BSS:
- return NL80211_IFTYPE_STATION;
- case UMAC_MODE_IBSS:
- return NL80211_IFTYPE_ADHOC;
- default:
- return NL80211_IFTYPE_UNSPECIFIED;
- }
-
- return 0;
-}
-
-static void iwm_statistics_request(struct work_struct *work)
-{
- struct iwm_priv *iwm =
- container_of(work, struct iwm_priv, stats_request.work);
-
- iwm_send_umac_stats_req(iwm, 0);
-}
-
-static void iwm_disconnect_work(struct work_struct *work)
-{
- struct iwm_priv *iwm =
- container_of(work, struct iwm_priv, disconnect.work);
-
- if (iwm->umac_profile_active)
- iwm_invalidate_mlme_profile(iwm);
-
- clear_bit(IWM_STATUS_ASSOCIATED, &iwm->status);
- iwm->umac_profile_active = false;
- memset(iwm->bssid, 0, ETH_ALEN);
- iwm->channel = 0;
-
- iwm_link_off(iwm);
-
- wake_up_interruptible(&iwm->mlme_queue);
-
- cfg80211_disconnected(iwm_to_ndev(iwm), 0, NULL, 0, GFP_KERNEL);
-}
-
-static void iwm_ct_kill_work(struct work_struct *work)
-{
- struct iwm_priv *iwm =
- container_of(work, struct iwm_priv, ct_kill_delay.work);
- struct wiphy *wiphy = iwm_to_wiphy(iwm);
-
- IWM_INFO(iwm, "CT kill delay timeout\n");
-
- wiphy_rfkill_set_hw_state(wiphy, false);
-}
-
-static int __iwm_up(struct iwm_priv *iwm);
-static int __iwm_down(struct iwm_priv *iwm);
-
-static void iwm_reset_worker(struct work_struct *work)
-{
- struct iwm_priv *iwm;
- struct iwm_umac_profile *profile = NULL;
- int uninitialized_var(ret), retry = 0;
-
- iwm = container_of(work, struct iwm_priv, reset_worker);
-
- /*
- * XXX: The iwm->mutex is introduced purely for this reset work,
- * because the other users for iwm_up and iwm_down are only netdev
- * ndo_open and ndo_stop which are already protected by rtnl.
- * Please remove iwm->mutex together if iwm_reset_worker() is not
- * required in the future.
- */
- if (!mutex_trylock(&iwm->mutex)) {
- IWM_WARN(iwm, "We are in the middle of interface bringing "
- "UP/DOWN. Skip driver resetting.\n");
- return;
- }
-
- if (iwm->umac_profile_active) {
- profile = kmalloc(sizeof(struct iwm_umac_profile), GFP_KERNEL);
- if (profile)
- memcpy(profile, iwm->umac_profile, sizeof(*profile));
- else
- IWM_ERR(iwm, "Couldn't alloc memory for profile\n");
- }
-
- __iwm_down(iwm);
-
- while (retry++ < 3) {
- ret = __iwm_up(iwm);
- if (!ret)
- break;
-
- schedule_timeout_uninterruptible(10 * HZ);
- }
-
- if (ret) {
- IWM_WARN(iwm, "iwm_up() failed: %d\n", ret);
-
- kfree(profile);
- goto out;
- }
-
- if (profile) {
- IWM_DBG_MLME(iwm, DBG, "Resend UMAC profile\n");
- memcpy(iwm->umac_profile, profile, sizeof(*profile));
- iwm_send_mlme_profile(iwm);
- kfree(profile);
- } else
- clear_bit(IWM_STATUS_RESETTING, &iwm->status);
-
- out:
- mutex_unlock(&iwm->mutex);
-}
-
-static void iwm_auth_retry_worker(struct work_struct *work)
-{
- struct iwm_priv *iwm;
- int i, ret;
-
- iwm = container_of(work, struct iwm_priv, auth_retry_worker);
- if (iwm->umac_profile_active) {
- ret = iwm_invalidate_mlme_profile(iwm);
- if (ret < 0)
- return;
- }
-
- iwm->umac_profile->sec.auth_type = UMAC_AUTH_TYPE_LEGACY_PSK;
-
- ret = iwm_send_mlme_profile(iwm);
- if (ret < 0)
- return;
-
- for (i = 0; i < IWM_NUM_KEYS; i++)
- if (iwm->keys[i].key_len)
- iwm_set_key(iwm, 0, &iwm->keys[i]);
-
- iwm_set_tx_key(iwm, iwm->default_key);
-}
-
-
-
-static void iwm_watchdog(unsigned long data)
-{
- struct iwm_priv *iwm = (struct iwm_priv *)data;
-
- IWM_WARN(iwm, "Watchdog expired: UMAC stalls!\n");
-
- if (modparam_reset)
- iwm_resetting(iwm);
-}
-
-int iwm_priv_init(struct iwm_priv *iwm)
-{
- int i, j;
- char name[32];
-
- iwm->status = 0;
- INIT_LIST_HEAD(&iwm->pending_notif);
- init_waitqueue_head(&iwm->notif_queue);
- init_waitqueue_head(&iwm->nonwifi_queue);
- init_waitqueue_head(&iwm->wifi_ntfy_queue);
- init_waitqueue_head(&iwm->mlme_queue);
- memcpy(&iwm->conf, &def_iwm_conf, sizeof(struct iwm_conf));
- spin_lock_init(&iwm->tx_credit.lock);
- INIT_LIST_HEAD(&iwm->wifi_pending_cmd);
- INIT_LIST_HEAD(&iwm->nonwifi_pending_cmd);
- iwm->wifi_seq_num = UMAC_WIFI_SEQ_NUM_BASE;
- iwm->nonwifi_seq_num = UMAC_NONWIFI_SEQ_NUM_BASE;
- spin_lock_init(&iwm->cmd_lock);
- iwm->scan_id = 1;
- INIT_DELAYED_WORK(&iwm->stats_request, iwm_statistics_request);
- INIT_DELAYED_WORK(&iwm->disconnect, iwm_disconnect_work);
- INIT_DELAYED_WORK(&iwm->ct_kill_delay, iwm_ct_kill_work);
- INIT_WORK(&iwm->reset_worker, iwm_reset_worker);
- INIT_WORK(&iwm->auth_retry_worker, iwm_auth_retry_worker);
- INIT_LIST_HEAD(&iwm->bss_list);
-
- skb_queue_head_init(&iwm->rx_list);
- INIT_LIST_HEAD(&iwm->rx_tickets);
- spin_lock_init(&iwm->ticket_lock);
- for (i = 0; i < IWM_RX_ID_HASH; i++) {
- INIT_LIST_HEAD(&iwm->rx_packets[i]);
- spin_lock_init(&iwm->packet_lock[i]);
- }
-
- INIT_WORK(&iwm->rx_worker, iwm_rx_worker);
-
- iwm->rx_wq = create_singlethread_workqueue(KBUILD_MODNAME "_rx");
- if (!iwm->rx_wq)
- return -EAGAIN;
-
- for (i = 0; i < IWM_TX_QUEUES; i++) {
- INIT_WORK(&iwm->txq[i].worker, iwm_tx_worker);
- snprintf(name, 32, KBUILD_MODNAME "_tx_%d", i);
- iwm->txq[i].id = i;
- iwm->txq[i].wq = create_singlethread_workqueue(name);
- if (!iwm->txq[i].wq)
- return -EAGAIN;
-
- skb_queue_head_init(&iwm->txq[i].queue);
- skb_queue_head_init(&iwm->txq[i].stopped_queue);
- spin_lock_init(&iwm->txq[i].lock);
- }
-
- for (i = 0; i < IWM_NUM_KEYS; i++)
- memset(&iwm->keys[i], 0, sizeof(struct iwm_key));
-
- iwm->default_key = -1;
-
- for (i = 0; i < IWM_STA_TABLE_NUM; i++)
- for (j = 0; j < IWM_UMAC_TID_NR; j++) {
- mutex_init(&iwm->sta_table[i].tid_info[j].mutex);
- iwm->sta_table[i].tid_info[j].stopped = false;
- }
-
- init_timer(&iwm->watchdog);
- iwm->watchdog.function = iwm_watchdog;
- iwm->watchdog.data = (unsigned long)iwm;
- mutex_init(&iwm->mutex);
-
- iwm->last_fw_err = kzalloc(sizeof(struct iwm_fw_error_hdr),
- GFP_KERNEL);
- if (iwm->last_fw_err == NULL)
- return -ENOMEM;
-
- return 0;
-}
-
-void iwm_priv_deinit(struct iwm_priv *iwm)
-{
- int i;
-
- for (i = 0; i < IWM_TX_QUEUES; i++)
- destroy_workqueue(iwm->txq[i].wq);
-
- destroy_workqueue(iwm->rx_wq);
- kfree(iwm->last_fw_err);
-}
-
-/*
- * We reset all the structures, and we reset the UMAC.
- * After calling this routine, you're expected to reload
- * the firmware.
- */
-void iwm_reset(struct iwm_priv *iwm)
-{
- struct iwm_notif *notif, *next;
-
- if (test_bit(IWM_STATUS_READY, &iwm->status))
- iwm_target_reset(iwm);
-
- if (test_bit(IWM_STATUS_RESETTING, &iwm->status)) {
- iwm->status = 0;
- set_bit(IWM_STATUS_RESETTING, &iwm->status);
- } else
- iwm->status = 0;
- iwm->scan_id = 1;
-
- list_for_each_entry_safe(notif, next, &iwm->pending_notif, pending) {
- list_del(&notif->pending);
- kfree(notif->buf);
- kfree(notif);
- }
-
- iwm_cmd_flush(iwm);
-
- flush_workqueue(iwm->rx_wq);
-
- iwm_link_off(iwm);
-}
-
-void iwm_resetting(struct iwm_priv *iwm)
-{
- set_bit(IWM_STATUS_RESETTING, &iwm->status);
-
- schedule_work(&iwm->reset_worker);
-}
-
-/*
- * Notification code:
- *
- * We're faced with the following issue: Any host command can
- * have an answer or not, and if there's an answer to expect,
- * it can be treated synchronously or asynchronously.
- * To work around the synchronous answer case, we implemented
- * our notification mechanism.
- * When a code path needs to wait for a command response
- * synchronously, it calls notif_handle(), which waits for the
- * right notification to show up, and then process it. Before
- * starting to wait, it registered as a waiter for this specific
- * answer (by toggling a bit in on of the handler_map), so that
- * the rx code knows that it needs to send a notification to the
- * waiting processes. It does so by calling iwm_notif_send(),
- * which adds the notification to the pending notifications list,
- * and then wakes the waiting processes up.
- */
-int iwm_notif_send(struct iwm_priv *iwm, struct iwm_wifi_cmd *cmd,
- u8 cmd_id, u8 source, u8 *buf, unsigned long buf_size)
-{
- struct iwm_notif *notif;
-
- notif = kzalloc(sizeof(struct iwm_notif), GFP_KERNEL);
- if (!notif) {
- IWM_ERR(iwm, "Couldn't alloc memory for notification\n");
- return -ENOMEM;
- }
-
- INIT_LIST_HEAD(&notif->pending);
- notif->cmd = cmd;
- notif->cmd_id = cmd_id;
- notif->src = source;
- notif->buf = kzalloc(buf_size, GFP_KERNEL);
- if (!notif->buf) {
- IWM_ERR(iwm, "Couldn't alloc notification buffer\n");
- kfree(notif);
- return -ENOMEM;
- }
- notif->buf_size = buf_size;
- memcpy(notif->buf, buf, buf_size);
- list_add_tail(&notif->pending, &iwm->pending_notif);
-
- wake_up_interruptible(&iwm->notif_queue);
-
- return 0;
-}
-
-static struct iwm_notif *iwm_notif_find(struct iwm_priv *iwm, u32 cmd,
- u8 source)
-{
- struct iwm_notif *notif;
-
- list_for_each_entry(notif, &iwm->pending_notif, pending) {
- if ((notif->cmd_id == cmd) && (notif->src == source)) {
- list_del(&notif->pending);
- return notif;
- }
- }
-
- return NULL;
-}
-
-static struct iwm_notif *iwm_notif_wait(struct iwm_priv *iwm, u32 cmd,
- u8 source, long timeout)
-{
- int ret;
- struct iwm_notif *notif;
- unsigned long *map = NULL;
-
- switch (source) {
- case IWM_SRC_LMAC:
- map = &iwm->lmac_handler_map[0];
- break;
- case IWM_SRC_UMAC:
- map = &iwm->umac_handler_map[0];
- break;
- case IWM_SRC_UDMA:
- map = &iwm->udma_handler_map[0];
- break;
- }
-
- set_bit(cmd, map);
-
- ret = wait_event_interruptible_timeout(iwm->notif_queue,
- ((notif = iwm_notif_find(iwm, cmd, source)) != NULL),
- timeout);
- clear_bit(cmd, map);
-
- if (!ret)
- return NULL;
-
- return notif;
-}
-
-int iwm_notif_handle(struct iwm_priv *iwm, u32 cmd, u8 source, long timeout)
-{
- int ret;
- struct iwm_notif *notif;
-
- notif = iwm_notif_wait(iwm, cmd, source, timeout);
- if (!notif)
- return -ETIME;
-
- ret = iwm_rx_handle_resp(iwm, notif->buf, notif->buf_size, notif->cmd);
- kfree(notif->buf);
- kfree(notif);
-
- return ret;
-}
-
-static int iwm_config_boot_params(struct iwm_priv *iwm)
-{
- struct iwm_udma_nonwifi_cmd target_cmd;
- int ret;
-
- /* check Wimax is off and config debug monitor */
- if (!modparam_wimax_enable) {
- u32 data1 = 0x1f;
- u32 addr1 = 0x606BE258;
-
- u32 data2_set = 0x0;
- u32 data2_clr = 0x1;
- u32 addr2 = 0x606BE100;
-
- u32 data3 = 0x1;
- u32 addr3 = 0x606BEC00;
-
- target_cmd.resp = 0;
- target_cmd.handle_by_hw = 0;
- target_cmd.eop = 1;
-
- target_cmd.opcode = UMAC_HDI_OUT_OPCODE_WRITE;
- target_cmd.addr = cpu_to_le32(addr1);
- target_cmd.op1_sz = cpu_to_le32(sizeof(u32));
- target_cmd.op2 = 0;
-
- ret = iwm_hal_send_target_cmd(iwm, &target_cmd, &data1);
- if (ret < 0) {
- IWM_ERR(iwm, "iwm_hal_send_target_cmd failed\n");
- return ret;
- }
-
- target_cmd.opcode = UMAC_HDI_OUT_OPCODE_READ_MODIFY_WRITE;
- target_cmd.addr = cpu_to_le32(addr2);
- target_cmd.op1_sz = cpu_to_le32(data2_set);
- target_cmd.op2 = cpu_to_le32(data2_clr);
-
- ret = iwm_hal_send_target_cmd(iwm, &target_cmd, &data1);
- if (ret < 0) {
- IWM_ERR(iwm, "iwm_hal_send_target_cmd failed\n");
- return ret;
- }
-
- target_cmd.opcode = UMAC_HDI_OUT_OPCODE_WRITE;
- target_cmd.addr = cpu_to_le32(addr3);
- target_cmd.op1_sz = cpu_to_le32(sizeof(u32));
- target_cmd.op2 = 0;
-
- ret = iwm_hal_send_target_cmd(iwm, &target_cmd, &data3);
- if (ret < 0) {
- IWM_ERR(iwm, "iwm_hal_send_target_cmd failed\n");
- return ret;
- }
- }
-
- return 0;
-}
-
-void iwm_init_default_profile(struct iwm_priv *iwm,
- struct iwm_umac_profile *profile)
-{
- memset(profile, 0, sizeof(struct iwm_umac_profile));
-
- profile->sec.auth_type = UMAC_AUTH_TYPE_OPEN;
- profile->sec.flags = UMAC_SEC_FLG_LEGACY_PROFILE;
- profile->sec.ucast_cipher = UMAC_CIPHER_TYPE_NONE;
- profile->sec.mcast_cipher = UMAC_CIPHER_TYPE_NONE;
-
- if (iwm->conf.enable_qos)
- profile->flags |= cpu_to_le16(UMAC_PROFILE_QOS_ALLOWED);
-
- profile->wireless_mode = iwm->conf.wireless_mode;
- profile->mode = cpu_to_le32(iwm->conf.mode);
-
- profile->ibss.atim = 0;
- profile->ibss.beacon_interval = 100;
- profile->ibss.join_only = 0;
- profile->ibss.band = iwm->conf.ibss_band;
- profile->ibss.channel = iwm->conf.ibss_channel;
-}
-
-void iwm_link_on(struct iwm_priv *iwm)
-{
- netif_carrier_on(iwm_to_ndev(iwm));
- netif_tx_wake_all_queues(iwm_to_ndev(iwm));
-
- iwm_send_umac_stats_req(iwm, 0);
-}
-
-void iwm_link_off(struct iwm_priv *iwm)
-{
- struct iw_statistics *wstats = &iwm->wstats;
- int i;
-
- netif_tx_stop_all_queues(iwm_to_ndev(iwm));
- netif_carrier_off(iwm_to_ndev(iwm));
-
- for (i = 0; i < IWM_TX_QUEUES; i++) {
- skb_queue_purge(&iwm->txq[i].queue);
- skb_queue_purge(&iwm->txq[i].stopped_queue);
-
- iwm->txq[i].concat_count = 0;
- iwm->txq[i].concat_ptr = iwm->txq[i].concat_buf;
-
- flush_workqueue(iwm->txq[i].wq);
- }
-
- iwm_rx_free(iwm);
-
- cancel_delayed_work_sync(&iwm->stats_request);
- memset(wstats, 0, sizeof(struct iw_statistics));
- wstats->qual.updated = IW_QUAL_ALL_INVALID;
-
- kfree(iwm->req_ie);
- iwm->req_ie = NULL;
- iwm->req_ie_len = 0;
- kfree(iwm->resp_ie);
- iwm->resp_ie = NULL;
- iwm->resp_ie_len = 0;
-
- del_timer_sync(&iwm->watchdog);
-}
-
-static void iwm_bss_list_clean(struct iwm_priv *iwm)
-{
- struct iwm_bss_info *bss, *next;
-
- list_for_each_entry_safe(bss, next, &iwm->bss_list, node) {
- list_del(&bss->node);
- kfree(bss->bss);
- kfree(bss);
- }
-}
-
-static int iwm_channels_init(struct iwm_priv *iwm)
-{
- int ret;
-
- ret = iwm_send_umac_channel_list(iwm);
- if (ret) {
- IWM_ERR(iwm, "Send channel list failed\n");
- return ret;
- }
-
- ret = iwm_notif_handle(iwm, UMAC_CMD_OPCODE_GET_CHAN_INFO_LIST,
- IWM_SRC_UMAC, WAIT_NOTIF_TIMEOUT);
- if (ret) {
- IWM_ERR(iwm, "Didn't get a channel list notification\n");
- return ret;
- }
-
- return 0;
-}
-
-static int __iwm_up(struct iwm_priv *iwm)
-{
- int ret;
- struct iwm_notif *notif_reboot, *notif_ack = NULL;
- struct wiphy *wiphy = iwm_to_wiphy(iwm);
- u32 wireless_mode;
-
- ret = iwm_bus_enable(iwm);
- if (ret) {
- IWM_ERR(iwm, "Couldn't enable function\n");
- return ret;
- }
-
- iwm_rx_setup_handlers(iwm);
-
- /* Wait for initial BARKER_REBOOT from hardware */
- notif_reboot = iwm_notif_wait(iwm, IWM_BARKER_REBOOT_NOTIFICATION,
- IWM_SRC_UDMA, 2 * HZ);
- if (!notif_reboot) {
- IWM_ERR(iwm, "Wait for REBOOT_BARKER timeout\n");
- goto err_disable;
- }
-
- /* We send the barker back */
- ret = iwm_bus_send_chunk(iwm, notif_reboot->buf, 16);
- if (ret) {
- IWM_ERR(iwm, "REBOOT barker response failed\n");
- kfree(notif_reboot);
- goto err_disable;
- }
-
- kfree(notif_reboot->buf);
- kfree(notif_reboot);
-
- /* Wait for ACK_BARKER from hardware */
- notif_ack = iwm_notif_wait(iwm, IWM_ACK_BARKER_NOTIFICATION,
- IWM_SRC_UDMA, 2 * HZ);
- if (!notif_ack) {
- IWM_ERR(iwm, "Wait for ACK_BARKER timeout\n");
- goto err_disable;
- }
-
- kfree(notif_ack->buf);
- kfree(notif_ack);
-
- /* We start to config static boot parameters */
- ret = iwm_config_boot_params(iwm);
- if (ret) {
- IWM_ERR(iwm, "Config boot parameters failed\n");
- goto err_disable;
- }
-
- ret = iwm_read_mac(iwm, iwm_to_ndev(iwm)->dev_addr);
- if (ret) {
- IWM_ERR(iwm, "MAC reading failed\n");
- goto err_disable;
- }
- memcpy(iwm_to_ndev(iwm)->perm_addr, iwm_to_ndev(iwm)->dev_addr,
- ETH_ALEN);
-
- /* We can load the FWs */
- ret = iwm_load_fw(iwm);
- if (ret) {
- IWM_ERR(iwm, "FW loading failed\n");
- goto err_disable;
- }
-
- ret = iwm_eeprom_fat_channels(iwm);
- if (ret) {
- IWM_ERR(iwm, "Couldnt read HT channels EEPROM entries\n");
- goto err_fw;
- }
-
- /*
- * Read our SKU capabilities.
- * If it's valid, we AND the configured wireless mode with the
- * device EEPROM value as the current profile wireless mode.
- */
- wireless_mode = iwm_eeprom_wireless_mode(iwm);
- if (wireless_mode) {
- iwm->conf.wireless_mode &= wireless_mode;
- if (iwm->umac_profile)
- iwm->umac_profile->wireless_mode =
- iwm->conf.wireless_mode;
- } else
- IWM_ERR(iwm, "Wrong SKU capabilities: 0x%x\n",
- *((u16 *)iwm_eeprom_access(iwm, IWM_EEPROM_SKU_CAP)));
-
- snprintf(wiphy->fw_version, sizeof(wiphy->fw_version), "L%s_U%s",
- iwm->lmac_version, iwm->umac_version);
-
- /* We configure the UMAC and enable the wifi module */
- ret = iwm_send_umac_config(iwm,
- cpu_to_le32(UMAC_RST_CTRL_FLG_WIFI_CORE_EN) |
- cpu_to_le32(UMAC_RST_CTRL_FLG_WIFI_LINK_EN) |
- cpu_to_le32(UMAC_RST_CTRL_FLG_WIFI_MLME_EN));
- if (ret) {
- IWM_ERR(iwm, "UMAC config failed\n");
- goto err_fw;
- }
-
- ret = iwm_notif_handle(iwm, UMAC_NOTIFY_OPCODE_WIFI_CORE_STATUS,
- IWM_SRC_UMAC, WAIT_NOTIF_TIMEOUT);
- if (ret) {
- IWM_ERR(iwm, "Didn't get a wifi core status notification\n");
- goto err_fw;
- }
-
- if (iwm->core_enabled != (UMAC_NTFY_WIFI_CORE_STATUS_LINK_EN |
- UMAC_NTFY_WIFI_CORE_STATUS_MLME_EN)) {
- IWM_DBG_BOOT(iwm, DBG, "Not all cores enabled:0x%x\n",
- iwm->core_enabled);
- ret = iwm_notif_handle(iwm, UMAC_NOTIFY_OPCODE_WIFI_CORE_STATUS,
- IWM_SRC_UMAC, WAIT_NOTIF_TIMEOUT);
- if (ret) {
- IWM_ERR(iwm, "Didn't get a core status notification\n");
- goto err_fw;
- }
-
- if (iwm->core_enabled != (UMAC_NTFY_WIFI_CORE_STATUS_LINK_EN |
- UMAC_NTFY_WIFI_CORE_STATUS_MLME_EN)) {
- IWM_ERR(iwm, "Not all cores enabled: 0x%x\n",
- iwm->core_enabled);
- goto err_fw;
- } else {
- IWM_INFO(iwm, "All cores enabled\n");
- }
- }
-
- ret = iwm_channels_init(iwm);
- if (ret < 0) {
- IWM_ERR(iwm, "Couldn't init channels\n");
- goto err_fw;
- }
-
- /* Set the READY bit to indicate interface is brought up successfully */
- set_bit(IWM_STATUS_READY, &iwm->status);
-
- return 0;
-
- err_fw:
- iwm_eeprom_exit(iwm);
-
- err_disable:
- ret = iwm_bus_disable(iwm);
- if (ret < 0)
- IWM_ERR(iwm, "Couldn't disable function\n");
-
- return -EIO;
-}
-
-int iwm_up(struct iwm_priv *iwm)
-{
- int ret;
-
- mutex_lock(&iwm->mutex);
- ret = __iwm_up(iwm);
- mutex_unlock(&iwm->mutex);
-
- return ret;
-}
-
-static int __iwm_down(struct iwm_priv *iwm)
-{
- int ret;
-
- /* The interface is already down */
- if (!test_bit(IWM_STATUS_READY, &iwm->status))
- return 0;
-
- if (iwm->scan_request) {
- cfg80211_scan_done(iwm->scan_request, true);
- iwm->scan_request = NULL;
- }
-
- clear_bit(IWM_STATUS_READY, &iwm->status);
-
- iwm_eeprom_exit(iwm);
- iwm_bss_list_clean(iwm);
- iwm_init_default_profile(iwm, iwm->umac_profile);
- iwm->umac_profile_active = false;
- iwm->default_key = -1;
- iwm->core_enabled = 0;
-
- ret = iwm_bus_disable(iwm);
- if (ret < 0) {
- IWM_ERR(iwm, "Couldn't disable function\n");
- return ret;
- }
-
- return 0;
-}
-
-int iwm_down(struct iwm_priv *iwm)
-{
- int ret;
-
- mutex_lock(&iwm->mutex);
- ret = __iwm_down(iwm);
- mutex_unlock(&iwm->mutex);
-
- return ret;
-}