215 lines
6.4 KiB
C
215 lines
6.4 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) 2018 - 2019 Intel Corporation
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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.
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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) 2018 - 2019 Intel Corporation
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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/firmware.h>
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#include "iwl-drv.h"
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#include "iwl-trans.h"
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#include "iwl-dbg-tlv.h"
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#include "fw/dbg.h"
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#include "fw/runtime.h"
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/**
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* enum iwl_dbg_tlv_type - debug TLV types
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* @IWL_DBG_TLV_TYPE_DEBUG_INFO: debug info TLV
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* @IWL_DBG_TLV_TYPE_BUF_ALLOC: buffer allocation TLV
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* @IWL_DBG_TLV_TYPE_HCMD: host command TLV
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* @IWL_DBG_TLV_TYPE_REGION: region TLV
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* @IWL_DBG_TLV_TYPE_TRIGGER: trigger TLV
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* @IWL_DBG_TLV_TYPE_NUM: number of debug TLVs
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*/
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enum iwl_dbg_tlv_type {
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IWL_DBG_TLV_TYPE_DEBUG_INFO =
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IWL_UCODE_TLV_TYPE_DEBUG_INFO - IWL_UCODE_TLV_DEBUG_BASE,
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IWL_DBG_TLV_TYPE_BUF_ALLOC,
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IWL_DBG_TLV_TYPE_HCMD,
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IWL_DBG_TLV_TYPE_REGION,
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IWL_DBG_TLV_TYPE_TRIGGER,
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IWL_DBG_TLV_TYPE_NUM,
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};
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/**
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* struct iwl_dbg_tlv_ver_data - debug TLV version struct
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* @min_ver: min version supported
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* @max_ver: max version supported
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*/
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struct iwl_dbg_tlv_ver_data {
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int min_ver;
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int max_ver;
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};
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static const struct iwl_dbg_tlv_ver_data
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dbg_ver_table[IWL_DBG_TLV_TYPE_NUM] = {
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[IWL_DBG_TLV_TYPE_DEBUG_INFO] = {.min_ver = 1, .max_ver = 1,},
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[IWL_DBG_TLV_TYPE_BUF_ALLOC] = {.min_ver = 1, .max_ver = 1,},
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[IWL_DBG_TLV_TYPE_HCMD] = {.min_ver = 1, .max_ver = 1,},
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[IWL_DBG_TLV_TYPE_REGION] = {.min_ver = 1, .max_ver = 1,},
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[IWL_DBG_TLV_TYPE_TRIGGER] = {.min_ver = 1, .max_ver = 1,},
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};
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static bool iwl_dbg_tlv_ver_support(struct iwl_ucode_tlv *tlv)
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{
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struct iwl_fw_ini_header *hdr = (void *)&tlv->data[0];
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u32 type = le32_to_cpu(tlv->type);
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u32 tlv_idx = type - IWL_UCODE_TLV_DEBUG_BASE;
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u32 ver = le32_to_cpu(hdr->tlv_version);
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if (ver < dbg_ver_table[tlv_idx].min_ver ||
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ver > dbg_ver_table[tlv_idx].max_ver)
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return false;
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return true;
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}
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void iwl_dbg_tlv_alloc(struct iwl_trans *trans, struct iwl_ucode_tlv *tlv,
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bool ext)
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{
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struct iwl_fw_ini_header *hdr = (void *)&tlv->data[0];
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u32 type = le32_to_cpu(tlv->type);
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u32 pnt = le32_to_cpu(hdr->apply_point);
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u32 tlv_idx = type - IWL_UCODE_TLV_DEBUG_BASE;
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enum iwl_ini_cfg_state *cfg_state = ext ?
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&trans->dbg.external_ini_cfg : &trans->dbg.internal_ini_cfg;
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IWL_DEBUG_FW(trans, "WRT: read TLV 0x%x, apply point %d\n",
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type, pnt);
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if (tlv_idx >= IWL_DBG_TLV_TYPE_NUM) {
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IWL_ERR(trans, "WRT: Unsupported TLV 0x%x\n", type);
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goto out_err;
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}
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if (!iwl_dbg_tlv_ver_support(tlv)) {
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IWL_ERR(trans, "WRT: Unsupported TLV 0x%x version %u\n", type,
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le32_to_cpu(hdr->tlv_version));
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goto out_err;
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}
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if (*cfg_state == IWL_INI_CFG_STATE_NOT_LOADED)
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*cfg_state = IWL_INI_CFG_STATE_LOADED;
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return;
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out_err:
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*cfg_state = IWL_INI_CFG_STATE_CORRUPTED;
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}
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void iwl_dbg_tlv_del_timers(struct iwl_trans *trans)
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{
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/* will be used later */
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}
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IWL_EXPORT_SYMBOL(iwl_dbg_tlv_del_timers);
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void iwl_dbg_tlv_free(struct iwl_trans *trans)
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{
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/* will be used again later */
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}
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static int iwl_dbg_tlv_parse_bin(struct iwl_trans *trans, const u8 *data,
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size_t len)
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{
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struct iwl_ucode_tlv *tlv;
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u32 tlv_len;
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while (len >= sizeof(*tlv)) {
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len -= sizeof(*tlv);
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tlv = (void *)data;
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tlv_len = le32_to_cpu(tlv->length);
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if (len < tlv_len) {
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IWL_ERR(trans, "invalid TLV len: %zd/%u\n",
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len, tlv_len);
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return -EINVAL;
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}
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len -= ALIGN(tlv_len, 4);
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data += sizeof(*tlv) + ALIGN(tlv_len, 4);
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iwl_dbg_tlv_alloc(trans, tlv, true);
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}
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return 0;
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}
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void iwl_dbg_tlv_load_bin(struct device *dev, struct iwl_trans *trans)
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{
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const struct firmware *fw;
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int res;
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if (!iwlwifi_mod_params.enable_ini)
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return;
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res = request_firmware(&fw, "iwl-dbg-tlv.ini", dev);
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if (res)
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return;
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iwl_dbg_tlv_parse_bin(trans, fw->data, fw->size);
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release_firmware(fw);
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}
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void iwl_dbg_tlv_time_point(struct iwl_fw_runtime *fwrt,
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enum iwl_fw_ini_time_point tp_id,
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union iwl_dbg_tlv_tp_data *tp_data)
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{
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/* will be used later */
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}
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IWL_EXPORT_SYMBOL(iwl_dbg_tlv_time_point);
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