193b167c1SMordechay Goodstein /****************************************************************************** 293b167c1SMordechay Goodstein * 393b167c1SMordechay Goodstein * This file is provided under a dual BSD/GPLv2 license. When using or 493b167c1SMordechay Goodstein * redistributing this file, you may do so under either license. 593b167c1SMordechay Goodstein * 693b167c1SMordechay Goodstein * GPL LICENSE SUMMARY 793b167c1SMordechay Goodstein * 893b167c1SMordechay Goodstein * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 993b167c1SMordechay Goodstein * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 1093b167c1SMordechay Goodstein * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 1193b167c1SMordechay Goodstein * 1293b167c1SMordechay Goodstein * This program is free software; you can redistribute it and/or modify 1393b167c1SMordechay Goodstein * it under the terms of version 2 of the GNU General Public License as 1493b167c1SMordechay Goodstein * published by the Free Software Foundation. 1593b167c1SMordechay Goodstein * 1693b167c1SMordechay Goodstein * This program is distributed in the hope that it will be useful, but 1793b167c1SMordechay Goodstein * WITHOUT ANY WARRANTY; without even the implied warranty of 1893b167c1SMordechay Goodstein * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 1993b167c1SMordechay Goodstein * General Public License for more details. 2093b167c1SMordechay Goodstein * 2193b167c1SMordechay Goodstein * You should have received a copy of the GNU General Public License 2293b167c1SMordechay Goodstein * along with this program. 2393b167c1SMordechay Goodstein * 2493b167c1SMordechay Goodstein * The full GNU General Public License is included in this distribution 2593b167c1SMordechay Goodstein * in the file called COPYING. 2693b167c1SMordechay Goodstein * 2793b167c1SMordechay Goodstein * Contact Information: 2893b167c1SMordechay Goodstein * Intel Linux Wireless <linuxwifi@intel.com> 2993b167c1SMordechay Goodstein * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 3093b167c1SMordechay Goodstein * 3193b167c1SMordechay Goodstein * BSD LICENSE 3293b167c1SMordechay Goodstein * 3393b167c1SMordechay Goodstein * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 3493b167c1SMordechay Goodstein * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 3593b167c1SMordechay Goodstein * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 3693b167c1SMordechay Goodstein * All rights reserved. 3793b167c1SMordechay Goodstein * 3893b167c1SMordechay Goodstein * Redistribution and use in source and binary forms, with or without 3993b167c1SMordechay Goodstein * modification, are permitted provided that the following conditions 4093b167c1SMordechay Goodstein * are met: 4193b167c1SMordechay Goodstein * 4293b167c1SMordechay Goodstein * * Redistributions of source code must retain the above copyright 4393b167c1SMordechay Goodstein * notice, this list of conditions and the following disclaimer. 4493b167c1SMordechay Goodstein * * Redistributions in binary form must reproduce the above copyright 4593b167c1SMordechay Goodstein * notice, this list of conditions and the following disclaimer in 4693b167c1SMordechay Goodstein * the documentation and/or other materials provided with the 4793b167c1SMordechay Goodstein * distribution. 4893b167c1SMordechay Goodstein * * Neither the name Intel Corporation nor the names of its 4993b167c1SMordechay Goodstein * contributors may be used to endorse or promote products derived 5093b167c1SMordechay Goodstein * from this software without specific prior written permission. 5193b167c1SMordechay Goodstein * 5293b167c1SMordechay Goodstein * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 5393b167c1SMordechay Goodstein * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 5493b167c1SMordechay Goodstein * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 5593b167c1SMordechay Goodstein * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 5693b167c1SMordechay Goodstein * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 5793b167c1SMordechay Goodstein * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 5893b167c1SMordechay Goodstein * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 5993b167c1SMordechay Goodstein * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 6093b167c1SMordechay Goodstein * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 6193b167c1SMordechay Goodstein * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 6293b167c1SMordechay Goodstein * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 6393b167c1SMordechay Goodstein * 6493b167c1SMordechay Goodstein *****************************************************************************/ 6593b167c1SMordechay Goodstein #include "api/commands.h" 6693b167c1SMordechay Goodstein #include "debugfs.h" 67422b5dd4SHaim Dreyfuss #include "dbg.h" 6893b167c1SMordechay Goodstein 6993b167c1SMordechay Goodstein #define FWRT_DEBUGFS_READ_FILE_OPS(name) \ 7093b167c1SMordechay Goodstein static ssize_t iwl_dbgfs_##name##_read(struct iwl_fw_runtime *fwrt, \ 7193b167c1SMordechay Goodstein char *buf, size_t count, \ 7293b167c1SMordechay Goodstein loff_t *ppos); \ 7393b167c1SMordechay Goodstein static const struct file_operations iwl_dbgfs_##name##_ops = { \ 7493b167c1SMordechay Goodstein .read = iwl_dbgfs_##name##_read, \ 7593b167c1SMordechay Goodstein .open = simple_open, \ 7693b167c1SMordechay Goodstein .llseek = generic_file_llseek, \ 7793b167c1SMordechay Goodstein } 7893b167c1SMordechay Goodstein 7993b167c1SMordechay Goodstein #define FWRT_DEBUGFS_WRITE_WRAPPER(name, buflen) \ 8093b167c1SMordechay Goodstein static ssize_t iwl_dbgfs_##name##_write(struct iwl_fw_runtime *fwrt, \ 8193b167c1SMordechay Goodstein char *buf, size_t count, \ 8293b167c1SMordechay Goodstein loff_t *ppos); \ 8393b167c1SMordechay Goodstein static ssize_t _iwl_dbgfs_##name##_write(struct file *file, \ 8493b167c1SMordechay Goodstein const char __user *user_buf, \ 8593b167c1SMordechay Goodstein size_t count, loff_t *ppos) \ 8693b167c1SMordechay Goodstein { \ 8793b167c1SMordechay Goodstein struct iwl_fw_runtime *fwrt = file->private_data; \ 8893b167c1SMordechay Goodstein char buf[buflen] = {}; \ 8993b167c1SMordechay Goodstein size_t buf_size = min(count, sizeof(buf) - 1); \ 9093b167c1SMordechay Goodstein \ 9193b167c1SMordechay Goodstein if (copy_from_user(buf, user_buf, buf_size)) \ 9293b167c1SMordechay Goodstein return -EFAULT; \ 9393b167c1SMordechay Goodstein \ 9493b167c1SMordechay Goodstein return iwl_dbgfs_##name##_write(fwrt, buf, buf_size, ppos); \ 9593b167c1SMordechay Goodstein } 9693b167c1SMordechay Goodstein 9793b167c1SMordechay Goodstein #define FWRT_DEBUGFS_READ_WRITE_FILE_OPS(name, buflen) \ 9893b167c1SMordechay Goodstein FWRT_DEBUGFS_WRITE_WRAPPER(name, buflen) \ 9993b167c1SMordechay Goodstein static const struct file_operations iwl_dbgfs_##name##_ops = { \ 10093b167c1SMordechay Goodstein .write = _iwl_dbgfs_##name##_write, \ 10193b167c1SMordechay Goodstein .read = iwl_dbgfs_##name##_read, \ 10293b167c1SMordechay Goodstein .open = simple_open, \ 10393b167c1SMordechay Goodstein .llseek = generic_file_llseek, \ 10493b167c1SMordechay Goodstein } 10593b167c1SMordechay Goodstein 10693b167c1SMordechay Goodstein #define FWRT_DEBUGFS_WRITE_FILE_OPS(name, buflen) \ 10793b167c1SMordechay Goodstein FWRT_DEBUGFS_WRITE_WRAPPER(name, buflen) \ 10893b167c1SMordechay Goodstein static const struct file_operations iwl_dbgfs_##name##_ops = { \ 10993b167c1SMordechay Goodstein .write = _iwl_dbgfs_##name##_write, \ 11093b167c1SMordechay Goodstein .open = simple_open, \ 11193b167c1SMordechay Goodstein .llseek = generic_file_llseek, \ 11293b167c1SMordechay Goodstein } 11393b167c1SMordechay Goodstein 11493b167c1SMordechay Goodstein #define FWRT_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \ 11593b167c1SMordechay Goodstein if (!debugfs_create_file(alias, mode, parent, fwrt, \ 11693b167c1SMordechay Goodstein &iwl_dbgfs_##name##_ops)) \ 11793b167c1SMordechay Goodstein goto err; \ 11893b167c1SMordechay Goodstein } while (0) 11993b167c1SMordechay Goodstein #define FWRT_DEBUGFS_ADD_FILE(name, parent, mode) \ 12093b167c1SMordechay Goodstein FWRT_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode) 12193b167c1SMordechay Goodstein 12293b167c1SMordechay Goodstein static int iwl_fw_send_timestamp_marker_cmd(struct iwl_fw_runtime *fwrt) 12393b167c1SMordechay Goodstein { 12493b167c1SMordechay Goodstein struct iwl_mvm_marker marker = { 12593b167c1SMordechay Goodstein .dw_len = sizeof(struct iwl_mvm_marker) / 4, 12693b167c1SMordechay Goodstein .marker_id = MARKER_ID_SYNC_CLOCK, 12793b167c1SMordechay Goodstein 12893b167c1SMordechay Goodstein /* the real timestamp is taken from the ftrace clock 12993b167c1SMordechay Goodstein * this is for finding the match between fw and kernel logs 13093b167c1SMordechay Goodstein */ 13193b167c1SMordechay Goodstein .timestamp = cpu_to_le64(fwrt->timestamp.seq++), 13293b167c1SMordechay Goodstein }; 13393b167c1SMordechay Goodstein 13493b167c1SMordechay Goodstein struct iwl_host_cmd hcmd = { 13593b167c1SMordechay Goodstein .id = MARKER_CMD, 13693b167c1SMordechay Goodstein .flags = CMD_ASYNC, 13793b167c1SMordechay Goodstein .data[0] = &marker, 13893b167c1SMordechay Goodstein .len[0] = sizeof(marker), 13993b167c1SMordechay Goodstein }; 14093b167c1SMordechay Goodstein 14193b167c1SMordechay Goodstein return iwl_trans_send_cmd(fwrt->trans, &hcmd); 14293b167c1SMordechay Goodstein } 14393b167c1SMordechay Goodstein 14493b167c1SMordechay Goodstein static void iwl_fw_timestamp_marker_wk(struct work_struct *work) 14593b167c1SMordechay Goodstein { 14693b167c1SMordechay Goodstein int ret; 14793b167c1SMordechay Goodstein struct iwl_fw_runtime *fwrt = 14893b167c1SMordechay Goodstein container_of(work, struct iwl_fw_runtime, timestamp.wk.work); 14993b167c1SMordechay Goodstein unsigned long delay = fwrt->timestamp.delay; 15093b167c1SMordechay Goodstein 15193b167c1SMordechay Goodstein ret = iwl_fw_send_timestamp_marker_cmd(fwrt); 15293b167c1SMordechay Goodstein if (!ret && delay) 15393b167c1SMordechay Goodstein schedule_delayed_work(&fwrt->timestamp.wk, 15493b167c1SMordechay Goodstein round_jiffies_relative(delay)); 15593b167c1SMordechay Goodstein else 15693b167c1SMordechay Goodstein IWL_INFO(fwrt, 15793b167c1SMordechay Goodstein "stopping timestamp_marker, ret: %d, delay: %u\n", 15893b167c1SMordechay Goodstein ret, jiffies_to_msecs(delay) / 1000); 15993b167c1SMordechay Goodstein } 16093b167c1SMordechay Goodstein 161759931c7SMordechay Goodstein void iwl_fw_trigger_timestamp(struct iwl_fw_runtime *fwrt, u32 delay) 162759931c7SMordechay Goodstein { 163759931c7SMordechay Goodstein IWL_INFO(fwrt, 164759931c7SMordechay Goodstein "starting timestamp_marker trigger with delay: %us\n", 165759931c7SMordechay Goodstein delay); 166759931c7SMordechay Goodstein 167759931c7SMordechay Goodstein iwl_fw_cancel_timestamp(fwrt); 168759931c7SMordechay Goodstein 169759931c7SMordechay Goodstein fwrt->timestamp.delay = msecs_to_jiffies(delay * 1000); 170759931c7SMordechay Goodstein 171759931c7SMordechay Goodstein schedule_delayed_work(&fwrt->timestamp.wk, 172759931c7SMordechay Goodstein round_jiffies_relative(fwrt->timestamp.delay)); 173759931c7SMordechay Goodstein } 174759931c7SMordechay Goodstein 17593b167c1SMordechay Goodstein static ssize_t iwl_dbgfs_timestamp_marker_write(struct iwl_fw_runtime *fwrt, 17693b167c1SMordechay Goodstein char *buf, size_t count, 17793b167c1SMordechay Goodstein loff_t *ppos) 17893b167c1SMordechay Goodstein { 17993b167c1SMordechay Goodstein int ret; 18093b167c1SMordechay Goodstein u32 delay; 18193b167c1SMordechay Goodstein 18293b167c1SMordechay Goodstein ret = kstrtou32(buf, 10, &delay); 18393b167c1SMordechay Goodstein if (ret < 0) 18493b167c1SMordechay Goodstein return ret; 18593b167c1SMordechay Goodstein 186759931c7SMordechay Goodstein iwl_fw_trigger_timestamp(fwrt, delay); 18793b167c1SMordechay Goodstein 18893b167c1SMordechay Goodstein return count; 18993b167c1SMordechay Goodstein } 19093b167c1SMordechay Goodstein 19193b167c1SMordechay Goodstein FWRT_DEBUGFS_WRITE_FILE_OPS(timestamp_marker, 10); 19293b167c1SMordechay Goodstein 19393b167c1SMordechay Goodstein int iwl_fwrt_dbgfs_register(struct iwl_fw_runtime *fwrt, 19493b167c1SMordechay Goodstein struct dentry *dbgfs_dir) 19593b167c1SMordechay Goodstein { 19693b167c1SMordechay Goodstein INIT_DELAYED_WORK(&fwrt->timestamp.wk, iwl_fw_timestamp_marker_wk); 1972ef00c53SJoe Perches FWRT_DEBUGFS_ADD_FILE(timestamp_marker, dbgfs_dir, 0200); 19893b167c1SMordechay Goodstein return 0; 19993b167c1SMordechay Goodstein err: 20093b167c1SMordechay Goodstein IWL_ERR(fwrt, "Can't create the fwrt debugfs directory\n"); 20193b167c1SMordechay Goodstein return -ENOMEM; 20293b167c1SMordechay Goodstein } 203