163 lines
5.7 KiB
C
163 lines
5.7 KiB
C
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/******************************************************************************
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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) 2012 - 2014 Intel Corporation. All rights reserved.
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* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
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* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
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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 COPYING.
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*
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* Contact Information:
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* Intel Linux Wireless <linuxwifi@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) 2012 - 2014 Intel Corporation. All rights reserved.
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* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
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* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
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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 "iwl-drv.h"
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#include "runtime.h"
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#include "fw/api/nvm-reg.h"
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#include "fw/api/commands.h"
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#include "iwl-nvm-parse.h"
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struct iwl_nvm_data *iwl_fw_get_nvm(struct iwl_fw_runtime *fwrt)
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{
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struct iwl_nvm_get_info cmd = {};
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struct iwl_nvm_get_info_rsp *rsp;
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struct iwl_trans *trans = fwrt->trans;
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struct iwl_nvm_data *nvm;
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struct iwl_host_cmd hcmd = {
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.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
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.data = { &cmd, },
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.len = { sizeof(cmd) },
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.id = WIDE_ID(REGULATORY_AND_NVM_GROUP, NVM_GET_INFO)
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};
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int ret;
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bool lar_fw_supported = !iwlwifi_mod_params.lar_disable &&
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fw_has_capa(&fwrt->fw->ucode_capa,
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IWL_UCODE_TLV_CAPA_LAR_SUPPORT);
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ret = iwl_trans_send_cmd(trans, &hcmd);
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if (ret)
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return ERR_PTR(ret);
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if (WARN(iwl_rx_packet_payload_len(hcmd.resp_pkt) != sizeof(*rsp),
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"Invalid payload len in NVM response from FW %d",
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iwl_rx_packet_payload_len(hcmd.resp_pkt))) {
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ret = -EINVAL;
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goto out;
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}
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rsp = (void *)hcmd.resp_pkt->data;
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if (le32_to_cpu(rsp->general.flags) & NVM_GENERAL_FLAGS_EMPTY_OTP)
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IWL_INFO(fwrt, "OTP is empty\n");
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nvm = kzalloc(sizeof(*nvm) +
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sizeof(struct ieee80211_channel) * IWL_NUM_CHANNELS,
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GFP_KERNEL);
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if (!nvm) {
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ret = -ENOMEM;
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goto out;
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}
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iwl_set_hw_address_from_csr(trans, nvm);
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/* TODO: if platform NVM has MAC address - override it here */
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if (!is_valid_ether_addr(nvm->hw_addr)) {
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IWL_ERR(fwrt, "no valid mac address was found\n");
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ret = -EINVAL;
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goto err_free;
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}
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IWL_INFO(trans, "base HW address: %pM\n", nvm->hw_addr);
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/* Initialize general data */
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nvm->nvm_version = le16_to_cpu(rsp->general.nvm_version);
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/* Initialize MAC sku data */
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nvm->sku_cap_11ac_enable =
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le32_to_cpu(rsp->mac_sku.enable_11ac);
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nvm->sku_cap_11n_enable =
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le32_to_cpu(rsp->mac_sku.enable_11n);
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nvm->sku_cap_band_24GHz_enable =
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le32_to_cpu(rsp->mac_sku.enable_24g);
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nvm->sku_cap_band_52GHz_enable =
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le32_to_cpu(rsp->mac_sku.enable_5g);
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nvm->sku_cap_mimo_disabled =
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le32_to_cpu(rsp->mac_sku.mimo_disable);
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/* Initialize PHY sku data */
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nvm->valid_tx_ant = (u8)le32_to_cpu(rsp->phy_sku.tx_chains);
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nvm->valid_rx_ant = (u8)le32_to_cpu(rsp->phy_sku.rx_chains);
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/* Initialize regulatory data */
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nvm->lar_enabled =
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le32_to_cpu(rsp->regulatory.lar_enabled) && lar_fw_supported;
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iwl_init_sbands(trans->dev, trans->cfg, nvm,
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rsp->regulatory.channel_profile,
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nvm->valid_tx_ant & fwrt->fw->valid_tx_ant,
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nvm->valid_rx_ant & fwrt->fw->valid_rx_ant,
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nvm->lar_enabled, false);
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iwl_free_resp(&hcmd);
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return nvm;
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err_free:
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kfree(nvm);
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out:
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iwl_free_resp(&hcmd);
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return ERR_PTR(ret);
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}
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IWL_EXPORT_SYMBOL(iwl_fw_get_nvm);
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