1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright (C) 2018 Intel Corporation
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program.
22 * The full GNU General Public License is included in this distribution
23 * in the file called COPYING.
25 * Contact Information:
26 * Intel Linux Wireless <linuxwifi@intel.com>
27 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 * Copyright (C) 2018 Intel Corporation
32 * All rights reserved.
34 * Redistribution and use in source and binary forms, with or without
35 * modification, are permitted provided that the following conditions
38 * * Redistributions of source code must retain the above copyright
39 * notice, this list of conditions and the following disclaimer.
40 * * Redistributions in binary form must reproduce the above copyright
41 * notice, this list of conditions and the following disclaimer in
42 * the documentation and/or other materials provided with the
44 * * Neither the name Intel Corporation nor the names of its
45 * contributors may be used to endorse or promote products derived
46 * from this software without specific prior written permission.
48 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
49 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
50 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
51 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
52 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
53 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
54 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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56 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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58 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
60 *****************************************************************************/
62 #include <linux/firmware.h>
63 #include "iwl-trans.h"
64 #include "iwl-dbg-tlv.h"
66 void iwl_fw_dbg_copy_tlv(struct iwl_trans *trans, struct iwl_ucode_tlv *tlv,
69 struct iwl_apply_point_data *data;
70 struct iwl_fw_ini_header *header = (void *)&tlv->data[0];
71 u32 apply_point = le32_to_cpu(header->apply_point);
73 int copy_size = le32_to_cpu(tlv->length) + sizeof(*tlv);
74 int offset_size = copy_size;
76 if (WARN_ONCE(apply_point >= IWL_FW_INI_APPLY_NUM,
77 "Invalid apply point id %d\n", apply_point))
81 data = &trans->apply_points_ext[apply_point];
83 data = &trans->apply_points[apply_point];
85 /* add room for is_alloc field in &iwl_fw_ini_allocation_data struct */
86 if (le32_to_cpu(tlv->type) == IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION) {
87 struct iwl_fw_ini_allocation_data *buf_alloc =
90 offset_size += sizeof(buf_alloc->is_alloc);
94 * Make sure we still have room to copy this TLV. Offset points to the
95 * location the last copy ended.
97 if (WARN_ONCE(data->offset + offset_size > data->size,
98 "Not enough memory for apply point %d\n",
102 memcpy(data->data + data->offset, (void *)tlv, copy_size);
103 data->offset += offset_size;
106 void iwl_alloc_dbg_tlv(struct iwl_trans *trans, size_t len, const u8 *data,
109 struct iwl_ucode_tlv *tlv;
110 u32 size[IWL_FW_INI_APPLY_NUM] = {0};
113 while (len >= sizeof(*tlv)) {
114 u32 tlv_len, tlv_type, apply;
115 struct iwl_fw_ini_header *hdr;
120 tlv_len = le32_to_cpu(tlv->length);
121 tlv_type = le32_to_cpu(tlv->type);
126 len -= ALIGN(tlv_len, 4);
127 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
129 if (!(tlv_type & IWL_UCODE_INI_TLV_GROUP))
132 hdr = (void *)&tlv->data[0];
133 apply = le32_to_cpu(hdr->apply_point);
135 IWL_DEBUG_FW(trans, "Read TLV %x, apply point %d\n",
136 le32_to_cpu(tlv->type), apply);
138 if (WARN_ON(apply >= IWL_FW_INI_APPLY_NUM))
141 /* add room for is_alloc field in &iwl_fw_ini_allocation_data
144 if (tlv_type == IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION) {
145 struct iwl_fw_ini_allocation_data *buf_alloc =
148 size[apply] += sizeof(buf_alloc->is_alloc);
151 size[apply] += sizeof(*tlv) + tlv_len;
154 for (i = 0; i < ARRAY_SIZE(size); i++) {
160 mem = kzalloc(size[i], GFP_KERNEL);
163 IWL_ERR(trans, "No memory for apply point %d\n", i);
168 trans->apply_points_ext[i].data = mem;
169 trans->apply_points_ext[i].size = size[i];
171 trans->apply_points[i].data = mem;
172 trans->apply_points[i].size = size[i];
175 trans->ini_valid = true;
179 void iwl_fw_dbg_free(struct iwl_trans *trans)
183 for (i = 0; i < ARRAY_SIZE(trans->apply_points); i++) {
184 kfree(trans->apply_points[i].data);
185 trans->apply_points[i].size = 0;
186 trans->apply_points[i].offset = 0;
188 kfree(trans->apply_points_ext[i].data);
189 trans->apply_points_ext[i].size = 0;
190 trans->apply_points_ext[i].offset = 0;
194 static int iwl_parse_fw_dbg_tlv(struct iwl_trans *trans, const u8 *data,
197 struct iwl_ucode_tlv *tlv;
198 enum iwl_ucode_tlv_type tlv_type;
201 while (len >= sizeof(*tlv)) {
205 tlv_len = le32_to_cpu(tlv->length);
206 tlv_type = le32_to_cpu(tlv->type);
209 IWL_ERR(trans, "invalid TLV len: %zd/%u\n",
213 len -= ALIGN(tlv_len, 4);
214 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
217 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
218 case IWL_UCODE_TLV_TYPE_HCMD:
219 case IWL_UCODE_TLV_TYPE_REGIONS:
220 case IWL_UCODE_TLV_TYPE_TRIGGERS:
221 case IWL_UCODE_TLV_TYPE_DEBUG_FLOW:
222 iwl_fw_dbg_copy_tlv(trans, tlv, true);
225 WARN_ONCE(1, "Invalid TLV %x\n", tlv_type);
233 void iwl_load_fw_dbg_tlv(struct device *dev, struct iwl_trans *trans)
235 const struct firmware *fw;
238 if (trans->external_ini_loaded || !iwlwifi_mod_params.enable_ini)
241 res = request_firmware(&fw, "iwl-dbg-tlv.ini", dev);
245 iwl_alloc_dbg_tlv(trans, fw->size, fw->data, true);
246 iwl_parse_fw_dbg_tlv(trans, fw->data, fw->size);
248 trans->external_ini_loaded = true;
249 release_firmware(fw);