forked from Minki/linux
128e63ef07
Update Copyright notices to 2013. Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
472 lines
14 KiB
C
472 lines
14 KiB
C
/******************************************************************************
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2010 - 2013 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
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* USA
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*
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.GPL.
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*
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* Contact Information:
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* Intel Linux Wireless <ilw@linux.intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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* BSD LICENSE
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*
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* Copyright(c) 2010 - 2013 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*****************************************************************************/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/dma-mapping.h>
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#include <net/net_namespace.h>
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#include <linux/netdevice.h>
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#include <net/cfg80211.h>
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#include <net/mac80211.h>
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#include <net/netlink.h>
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#include "iwl-debug.h"
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#include "iwl-trans.h"
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#include "dev.h"
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#include "agn.h"
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#include "iwl-test.h"
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#include "iwl-testmode.h"
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static int iwl_testmode_send_cmd(struct iwl_op_mode *op_mode,
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struct iwl_host_cmd *cmd)
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{
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struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
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return iwl_dvm_send_cmd(priv, cmd);
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}
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static bool iwl_testmode_valid_hw_addr(u32 addr)
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{
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if (iwlagn_hw_valid_rtc_data_addr(addr))
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return true;
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if (IWLAGN_RTC_INST_LOWER_BOUND <= addr &&
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addr < IWLAGN_RTC_INST_UPPER_BOUND)
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return true;
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return false;
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}
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static u32 iwl_testmode_get_fw_ver(struct iwl_op_mode *op_mode)
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{
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struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
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return priv->fw->ucode_ver;
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}
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static struct sk_buff*
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iwl_testmode_alloc_reply(struct iwl_op_mode *op_mode, int len)
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{
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struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
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return cfg80211_testmode_alloc_reply_skb(priv->hw->wiphy, len);
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}
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static int iwl_testmode_reply(struct iwl_op_mode *op_mode, struct sk_buff *skb)
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{
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return cfg80211_testmode_reply(skb);
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}
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static struct sk_buff *iwl_testmode_alloc_event(struct iwl_op_mode *op_mode,
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int len)
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{
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struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
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return cfg80211_testmode_alloc_event_skb(priv->hw->wiphy, len,
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GFP_ATOMIC);
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}
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static void iwl_testmode_event(struct iwl_op_mode *op_mode, struct sk_buff *skb)
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{
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return cfg80211_testmode_event(skb, GFP_ATOMIC);
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}
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static struct iwl_test_ops tst_ops = {
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.send_cmd = iwl_testmode_send_cmd,
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.valid_hw_addr = iwl_testmode_valid_hw_addr,
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.get_fw_ver = iwl_testmode_get_fw_ver,
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.alloc_reply = iwl_testmode_alloc_reply,
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.reply = iwl_testmode_reply,
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.alloc_event = iwl_testmode_alloc_event,
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.event = iwl_testmode_event,
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};
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void iwl_testmode_init(struct iwl_priv *priv)
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{
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iwl_test_init(&priv->tst, priv->trans, &tst_ops);
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}
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void iwl_testmode_free(struct iwl_priv *priv)
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{
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iwl_test_free(&priv->tst);
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}
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static int iwl_testmode_cfg_init_calib(struct iwl_priv *priv)
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{
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struct iwl_notification_wait calib_wait;
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static const u8 calib_complete[] = {
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CALIBRATION_COMPLETE_NOTIFICATION
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};
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int ret;
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iwl_init_notification_wait(&priv->notif_wait, &calib_wait,
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calib_complete, ARRAY_SIZE(calib_complete),
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NULL, NULL);
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ret = iwl_init_alive_start(priv);
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if (ret) {
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IWL_ERR(priv, "Fail init calibration: %d\n", ret);
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goto cfg_init_calib_error;
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}
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ret = iwl_wait_notification(&priv->notif_wait, &calib_wait, 2 * HZ);
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if (ret)
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IWL_ERR(priv, "Error detecting"
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" CALIBRATION_COMPLETE_NOTIFICATION: %d\n", ret);
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return ret;
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cfg_init_calib_error:
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iwl_remove_notification(&priv->notif_wait, &calib_wait);
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return ret;
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}
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/*
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* This function handles the user application commands for driver.
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*
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* It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the
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* handlers respectively.
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*
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* If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned
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* value of the actual command execution is replied to the user application.
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*
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* If there's any message responding to the user space, IWL_TM_ATTR_SYNC_RSP
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* is used for carry the message while IWL_TM_ATTR_COMMAND must set to
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* IWL_TM_CMD_DEV2APP_SYNC_RSP.
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*
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* @hw: ieee80211_hw object that represents the device
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* @tb: gnl message fields from the user space
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*/
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static int iwl_testmode_driver(struct ieee80211_hw *hw, struct nlattr **tb)
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{
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struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
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struct iwl_trans *trans = priv->trans;
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struct sk_buff *skb;
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unsigned char *rsp_data_ptr = NULL;
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int status = 0, rsp_data_len = 0;
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u32 inst_size = 0, data_size = 0;
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const struct fw_img *img;
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switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) {
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case IWL_TM_CMD_APP2DEV_GET_DEVICENAME:
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rsp_data_ptr = (unsigned char *)priv->cfg->name;
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rsp_data_len = strlen(priv->cfg->name);
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skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
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rsp_data_len + 20);
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if (!skb) {
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IWL_ERR(priv, "Memory allocation fail\n");
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return -ENOMEM;
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}
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if (nla_put_u32(skb, IWL_TM_ATTR_COMMAND,
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IWL_TM_CMD_DEV2APP_SYNC_RSP) ||
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nla_put(skb, IWL_TM_ATTR_SYNC_RSP,
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rsp_data_len, rsp_data_ptr))
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goto nla_put_failure;
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status = cfg80211_testmode_reply(skb);
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if (status < 0)
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IWL_ERR(priv, "Error sending msg : %d\n", status);
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break;
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case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW:
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status = iwl_load_ucode_wait_alive(priv, IWL_UCODE_INIT);
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if (status)
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IWL_ERR(priv, "Error loading init ucode: %d\n", status);
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break;
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case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB:
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iwl_testmode_cfg_init_calib(priv);
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priv->ucode_loaded = false;
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iwl_trans_stop_device(trans);
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break;
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case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW:
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status = iwl_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR);
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if (status) {
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IWL_ERR(priv,
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"Error loading runtime ucode: %d\n", status);
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break;
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}
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status = iwl_alive_start(priv);
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if (status)
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IWL_ERR(priv,
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"Error starting the device: %d\n", status);
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break;
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case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW:
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iwl_scan_cancel_timeout(priv, 200);
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priv->ucode_loaded = false;
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iwl_trans_stop_device(trans);
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status = iwl_load_ucode_wait_alive(priv, IWL_UCODE_WOWLAN);
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if (status) {
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IWL_ERR(priv,
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"Error loading WOWLAN ucode: %d\n", status);
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break;
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}
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status = iwl_alive_start(priv);
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if (status)
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IWL_ERR(priv,
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"Error starting the device: %d\n", status);
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break;
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case IWL_TM_CMD_APP2DEV_GET_EEPROM:
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if (priv->eeprom_blob) {
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skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
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priv->eeprom_blob_size + 20);
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if (!skb) {
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IWL_ERR(priv, "Memory allocation fail\n");
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return -ENOMEM;
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}
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if (nla_put_u32(skb, IWL_TM_ATTR_COMMAND,
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IWL_TM_CMD_DEV2APP_EEPROM_RSP) ||
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nla_put(skb, IWL_TM_ATTR_EEPROM,
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priv->eeprom_blob_size,
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priv->eeprom_blob))
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goto nla_put_failure;
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status = cfg80211_testmode_reply(skb);
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if (status < 0)
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IWL_ERR(priv, "Error sending msg : %d\n",
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status);
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} else
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return -ENODATA;
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break;
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case IWL_TM_CMD_APP2DEV_FIXRATE_REQ:
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if (!tb[IWL_TM_ATTR_FIXRATE]) {
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IWL_ERR(priv, "Missing fixrate setting\n");
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return -ENOMSG;
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}
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priv->tm_fixed_rate = nla_get_u32(tb[IWL_TM_ATTR_FIXRATE]);
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break;
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case IWL_TM_CMD_APP2DEV_GET_FW_INFO:
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skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20 + 8);
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if (!skb) {
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IWL_ERR(priv, "Memory allocation fail\n");
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return -ENOMEM;
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}
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if (!priv->ucode_loaded) {
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IWL_ERR(priv, "No uCode has not been loaded\n");
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return -EINVAL;
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} else {
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img = &priv->fw->img[priv->cur_ucode];
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inst_size = img->sec[IWL_UCODE_SECTION_INST].len;
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data_size = img->sec[IWL_UCODE_SECTION_DATA].len;
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}
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if (nla_put_u32(skb, IWL_TM_ATTR_FW_TYPE, priv->cur_ucode) ||
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nla_put_u32(skb, IWL_TM_ATTR_FW_INST_SIZE, inst_size) ||
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nla_put_u32(skb, IWL_TM_ATTR_FW_DATA_SIZE, data_size))
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goto nla_put_failure;
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status = cfg80211_testmode_reply(skb);
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if (status < 0)
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IWL_ERR(priv, "Error sending msg : %d\n", status);
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break;
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default:
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IWL_ERR(priv, "Unknown testmode driver command ID\n");
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return -ENOSYS;
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}
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return status;
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nla_put_failure:
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kfree_skb(skb);
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return -EMSGSIZE;
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}
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/*
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* This function handles the user application switch ucode ownership.
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*
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* It retrieves the mandatory fields IWL_TM_ATTR_UCODE_OWNER and
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* decide who the current owner of the uCode
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*
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* If the current owner is OWNERSHIP_TM, then the only host command
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* can deliver to uCode is from testmode, all the other host commands
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* will dropped.
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*
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* default driver is the owner of uCode in normal operational mode
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*
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* @hw: ieee80211_hw object that represents the device
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* @tb: gnl message fields from the user space
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*/
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static int iwl_testmode_ownership(struct ieee80211_hw *hw, struct nlattr **tb)
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{
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struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
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u8 owner;
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if (!tb[IWL_TM_ATTR_UCODE_OWNER]) {
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IWL_ERR(priv, "Missing ucode owner\n");
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return -ENOMSG;
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}
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owner = nla_get_u8(tb[IWL_TM_ATTR_UCODE_OWNER]);
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if (owner == IWL_OWNERSHIP_DRIVER) {
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priv->ucode_owner = owner;
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iwl_test_enable_notifications(&priv->tst, false);
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} else if (owner == IWL_OWNERSHIP_TM) {
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priv->ucode_owner = owner;
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iwl_test_enable_notifications(&priv->tst, true);
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} else {
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IWL_ERR(priv, "Invalid owner\n");
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return -EINVAL;
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}
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return 0;
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}
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/* The testmode gnl message handler that takes the gnl message from the
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* user space and parses it per the policy iwl_testmode_gnl_msg_policy, then
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* invoke the corresponding handlers.
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*
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* This function is invoked when there is user space application sending
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* gnl message through the testmode tunnel NL80211_CMD_TESTMODE regulated
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* by nl80211.
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*
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* It retrieves the mandatory field, IWL_TM_ATTR_COMMAND, before
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* dispatching it to the corresponding handler.
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*
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* If IWL_TM_ATTR_COMMAND is missing, -ENOMSG is replied to user application;
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* -ENOSYS is replied to the user application if the command is unknown;
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* Otherwise, the command is dispatched to the respective handler.
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*
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* @hw: ieee80211_hw object that represents the device
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* @data: pointer to user space message
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* @len: length in byte of @data
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*/
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int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data, int len)
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{
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struct nlattr *tb[IWL_TM_ATTR_MAX];
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struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
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int result;
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result = iwl_test_parse(&priv->tst, tb, data, len);
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if (result)
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return result;
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/* in case multiple accesses to the device happens */
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mutex_lock(&priv->mutex);
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switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) {
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case IWL_TM_CMD_APP2DEV_UCODE:
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case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32:
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case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32:
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case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8:
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case IWL_TM_CMD_APP2DEV_BEGIN_TRACE:
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case IWL_TM_CMD_APP2DEV_END_TRACE:
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case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ:
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case IWL_TM_CMD_APP2DEV_NOTIFICATIONS:
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case IWL_TM_CMD_APP2DEV_GET_FW_VERSION:
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case IWL_TM_CMD_APP2DEV_GET_DEVICE_ID:
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case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_WRITE:
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result = iwl_test_handle_cmd(&priv->tst, tb);
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break;
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case IWL_TM_CMD_APP2DEV_GET_DEVICENAME:
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case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW:
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case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB:
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case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW:
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case IWL_TM_CMD_APP2DEV_GET_EEPROM:
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case IWL_TM_CMD_APP2DEV_FIXRATE_REQ:
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case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW:
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case IWL_TM_CMD_APP2DEV_GET_FW_INFO:
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IWL_DEBUG_INFO(priv, "testmode cmd to driver\n");
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result = iwl_testmode_driver(hw, tb);
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break;
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case IWL_TM_CMD_APP2DEV_OWNERSHIP:
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IWL_DEBUG_INFO(priv, "testmode change uCode ownership\n");
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result = iwl_testmode_ownership(hw, tb);
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break;
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default:
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IWL_ERR(priv, "Unknown testmode command\n");
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result = -ENOSYS;
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break;
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}
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mutex_unlock(&priv->mutex);
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if (result)
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IWL_ERR(priv, "Test cmd failed result=%d\n", result);
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return result;
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}
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int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb,
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struct netlink_callback *cb,
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void *data, int len)
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{
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struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
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int result;
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u32 cmd;
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if (cb->args[3]) {
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/* offset by 1 since commands start at 0 */
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cmd = cb->args[3] - 1;
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} else {
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struct nlattr *tb[IWL_TM_ATTR_MAX];
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|
|
result = iwl_test_parse(&priv->tst, tb, data, len);
|
|
if (result)
|
|
return result;
|
|
|
|
cmd = nla_get_u32(tb[IWL_TM_ATTR_COMMAND]);
|
|
cb->args[3] = cmd + 1;
|
|
}
|
|
|
|
/* in case multiple accesses to the device happens */
|
|
mutex_lock(&priv->mutex);
|
|
result = iwl_test_dump(&priv->tst, cmd, skb, cb);
|
|
mutex_unlock(&priv->mutex);
|
|
return result;
|
|
}
|