1 /****************************************************************************** 2 * 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. 5 * 6 * GPL LICENSE SUMMARY 7 * 8 * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. 9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 10 * Copyright(c) 2015 - 2017 Intel Deutschland GmbH 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of version 2 of the GNU General Public License as 14 * published by the Free Software Foundation. 15 * 16 * This program is distributed in the hope that it will be useful, but 17 * WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 * General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program; 23 * 24 * The full GNU General Public License is included in this distribution 25 * in the file called COPYING. 26 * 27 * Contact Information: 28 * Intel Linux Wireless <linuxwifi@intel.com> 29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 30 * 31 * BSD LICENSE 32 * 33 * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. 34 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 35 * Copyright(c) 2015 - 2017 Intel Deutschland GmbH 36 * All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 42 * * Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * * Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in 46 * the documentation and/or other materials provided with the 47 * distribution. 48 * * Neither the name Intel Corporation nor the names of its 49 * contributors may be used to endorse or promote products derived 50 * from this software without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 63 * 64 *****************************************************************************/ 65 66 #ifndef __iwl_fw_dbg_h__ 67 #define __iwl_fw_dbg_h__ 68 #include <linux/workqueue.h> 69 #include <net/cfg80211.h> 70 #include "runtime.h" 71 #include "iwl-prph.h" 72 #include "iwl-io.h" 73 #include "file.h" 74 #include "error-dump.h" 75 76 /** 77 * struct iwl_fw_dump_desc - describes the dump 78 * @len: length of trig_desc->data 79 * @trig_desc: the description of the dump 80 */ 81 struct iwl_fw_dump_desc { 82 size_t len; 83 /* must be last */ 84 struct iwl_fw_error_dump_trigger_desc trig_desc; 85 }; 86 87 extern const struct iwl_fw_dump_desc iwl_dump_desc_assert; 88 89 static inline void iwl_fw_free_dump_desc(struct iwl_fw_runtime *fwrt) 90 { 91 if (fwrt->dump.desc != &iwl_dump_desc_assert) 92 kfree(fwrt->dump.desc); 93 fwrt->dump.desc = NULL; 94 } 95 96 void iwl_fw_error_dump(struct iwl_fw_runtime *fwrt); 97 int iwl_fw_dbg_collect_desc(struct iwl_fw_runtime *fwrt, 98 const struct iwl_fw_dump_desc *desc, 99 const struct iwl_fw_dbg_trigger_tlv *trigger); 100 int iwl_fw_dbg_collect(struct iwl_fw_runtime *fwrt, 101 enum iwl_fw_dbg_trigger trig, 102 const char *str, size_t len, 103 const struct iwl_fw_dbg_trigger_tlv *trigger); 104 int iwl_fw_dbg_collect_trig(struct iwl_fw_runtime *fwrt, 105 struct iwl_fw_dbg_trigger_tlv *trigger, 106 const char *fmt, ...) __printf(3, 4); 107 int iwl_fw_start_dbg_conf(struct iwl_fw_runtime *fwrt, u8 id); 108 109 #define iwl_fw_dbg_trigger_enabled(fw, id) ({ \ 110 void *__dbg_trigger = (fw)->dbg_trigger_tlv[(id)]; \ 111 unlikely(__dbg_trigger); \ 112 }) 113 114 static inline struct iwl_fw_dbg_trigger_tlv* 115 _iwl_fw_dbg_get_trigger(const struct iwl_fw *fw, enum iwl_fw_dbg_trigger id) 116 { 117 return fw->dbg_trigger_tlv[id]; 118 } 119 120 #define iwl_fw_dbg_get_trigger(fw, id) ({ \ 121 BUILD_BUG_ON(!__builtin_constant_p(id)); \ 122 BUILD_BUG_ON((id) >= FW_DBG_TRIGGER_MAX); \ 123 _iwl_fw_dbg_get_trigger((fw), (id)); \ 124 }) 125 126 static inline bool 127 iwl_fw_dbg_trigger_vif_match(struct iwl_fw_dbg_trigger_tlv *trig, 128 struct wireless_dev *wdev) 129 { 130 u32 trig_vif = le32_to_cpu(trig->vif_type); 131 132 return trig_vif == IWL_FW_DBG_CONF_VIF_ANY || 133 wdev->iftype == trig_vif; 134 } 135 136 static inline bool 137 iwl_fw_dbg_trigger_stop_conf_match(struct iwl_fw_runtime *fwrt, 138 struct iwl_fw_dbg_trigger_tlv *trig) 139 { 140 return ((trig->mode & IWL_FW_DBG_TRIGGER_STOP) && 141 (fwrt->dump.conf == FW_DBG_INVALID || 142 (BIT(fwrt->dump.conf) & le32_to_cpu(trig->stop_conf_ids)))); 143 } 144 145 static inline bool 146 iwl_fw_dbg_no_trig_window(struct iwl_fw_runtime *fwrt, 147 struct iwl_fw_dbg_trigger_tlv *trig) 148 { 149 unsigned long wind_jiff = 150 msecs_to_jiffies(le16_to_cpu(trig->trig_dis_ms)); 151 u32 id = le32_to_cpu(trig->id); 152 153 /* If this is the first event checked, jump to update start ts */ 154 if (fwrt->dump.non_collect_ts_start[id] && 155 (time_after(fwrt->dump.non_collect_ts_start[id] + wind_jiff, 156 jiffies))) 157 return true; 158 159 fwrt->dump.non_collect_ts_start[id] = jiffies; 160 return false; 161 } 162 163 static inline bool 164 iwl_fw_dbg_trigger_check_stop(struct iwl_fw_runtime *fwrt, 165 struct wireless_dev *wdev, 166 struct iwl_fw_dbg_trigger_tlv *trig) 167 { 168 if (wdev && !iwl_fw_dbg_trigger_vif_match(trig, wdev)) 169 return false; 170 171 if (iwl_fw_dbg_no_trig_window(fwrt, trig)) { 172 IWL_WARN(fwrt, "Trigger %d occurred while no-collect window.\n", 173 trig->id); 174 return false; 175 } 176 177 return iwl_fw_dbg_trigger_stop_conf_match(fwrt, trig); 178 } 179 180 static inline void 181 _iwl_fw_dbg_trigger_simple_stop(struct iwl_fw_runtime *fwrt, 182 struct wireless_dev *wdev, 183 struct iwl_fw_dbg_trigger_tlv *trigger) 184 { 185 if (!trigger) 186 return; 187 188 if (!iwl_fw_dbg_trigger_check_stop(fwrt, wdev, trigger)) 189 return; 190 191 iwl_fw_dbg_collect_trig(fwrt, trigger, NULL); 192 } 193 194 #define iwl_fw_dbg_trigger_simple_stop(fwrt, wdev, trig) \ 195 _iwl_fw_dbg_trigger_simple_stop((fwrt), (wdev), \ 196 iwl_fw_dbg_get_trigger((fwrt)->fw,\ 197 (trig))) 198 199 static inline void iwl_fw_dbg_stop_recording(struct iwl_fw_runtime *fwrt) 200 { 201 if (fwrt->trans->cfg->device_family == IWL_DEVICE_FAMILY_7000) { 202 iwl_set_bits_prph(fwrt->trans, MON_BUFF_SAMPLE_CTL, 0x100); 203 } else { 204 iwl_write_prph(fwrt->trans, DBGC_IN_SAMPLE, 0); 205 udelay(100); 206 iwl_write_prph(fwrt->trans, DBGC_OUT_CTRL, 0); 207 } 208 } 209 210 static inline void iwl_fw_dump_conf_clear(struct iwl_fw_runtime *fwrt) 211 { 212 fwrt->dump.conf = FW_DBG_INVALID; 213 } 214 215 void iwl_fw_error_dump_wk(struct work_struct *work); 216 217 static inline void iwl_fw_flush_dump(struct iwl_fw_runtime *fwrt) 218 { 219 flush_delayed_work(&fwrt->dump.wk); 220 } 221 222 static inline void iwl_fw_cancel_dump(struct iwl_fw_runtime *fwrt) 223 { 224 cancel_delayed_work_sync(&fwrt->dump.wk); 225 } 226 227 #endif /* __iwl_fw_dbg_h__ */ 228