| /****************************************************************************** |
| * |
| * This file is provided under a dual BSD/GPLv2 license. When using or |
| * redistributing this file, you may do so under either license. |
| * |
| * GPL LICENSE SUMMARY |
| * |
| * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, |
| * USA |
| * |
| * The full GNU General Public License is included in this distribution |
| * in the file called COPYING. |
| * |
| * Contact Information: |
| * Intel Linux Wireless <ilw@linux.intel.com> |
| * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| * |
| * BSD LICENSE |
| * |
| * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name Intel Corporation nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| *****************************************************************************/ |
| #include <linux/vmalloc.h> |
| |
| #include "mvm.h" |
| #include "sta.h" |
| #include "iwl-io.h" |
| #include "debugfs.h" |
| #include "iwl-fw-error-dump.h" |
| |
| static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf, |
| size_t count, loff_t *ppos) |
| { |
| int ret; |
| u32 scd_q_msk; |
| |
| if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR) |
| return -EIO; |
| |
| if (sscanf(buf, "%x", &scd_q_msk) != 1) |
| return -EINVAL; |
| |
| IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk); |
| |
| mutex_lock(&mvm->mutex); |
| ret = iwl_mvm_flush_tx_path(mvm, scd_q_msk, true) ? : count; |
| mutex_unlock(&mvm->mutex); |
| |
| return ret; |
| } |
| |
| static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_mvm_sta *mvmsta; |
| int sta_id, drain, ret; |
| |
| if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR) |
| return -EIO; |
| |
| if (sscanf(buf, "%d %d", &sta_id, &drain) != 2) |
| return -EINVAL; |
| if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT) |
| return -EINVAL; |
| if (drain < 0 || drain > 1) |
| return -EINVAL; |
| |
| mutex_lock(&mvm->mutex); |
| |
| mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); |
| |
| if (!mvmsta) |
| ret = -ENOENT; |
| else |
| ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count; |
| |
| mutex_unlock(&mvm->mutex); |
| |
| return ret; |
| } |
| |
| static int iwl_dbgfs_fw_error_dump_open(struct inode *inode, struct file *file) |
| { |
| struct iwl_mvm *mvm = inode->i_private; |
| int ret; |
| |
| if (!mvm) |
| return -EINVAL; |
| |
| mutex_lock(&mvm->mutex); |
| if (!mvm->fw_error_dump) { |
| ret = -ENODATA; |
| goto out; |
| } |
| |
| file->private_data = mvm->fw_error_dump; |
| mvm->fw_error_dump = NULL; |
| ret = 0; |
| |
| out: |
| mutex_unlock(&mvm->mutex); |
| return ret; |
| } |
| |
| static ssize_t iwl_dbgfs_fw_error_dump_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_fw_error_dump_file *dump_file = file->private_data; |
| |
| return simple_read_from_buffer(user_buf, count, ppos, |
| dump_file, |
| le32_to_cpu(dump_file->file_len)); |
| } |
| |
| static int iwl_dbgfs_fw_error_dump_release(struct inode *inode, |
| struct file *file) |
| { |
| vfree(file->private_data); |
| |
| return 0; |
| } |
| |
| static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_mvm *mvm = file->private_data; |
| const struct fw_img *img; |
| unsigned int ofs, len; |
| size_t ret; |
| u8 *ptr; |
| |
| if (!mvm->ucode_loaded) |
| return -EINVAL; |
| |
| /* default is to dump the entire data segment */ |
| img = &mvm->fw->img[mvm->cur_ucode]; |
| ofs = img->sec[IWL_UCODE_SECTION_DATA].offset; |
| len = img->sec[IWL_UCODE_SECTION_DATA].len; |
| |
| if (mvm->dbgfs_sram_len) { |
| ofs = mvm->dbgfs_sram_offset; |
| len = mvm->dbgfs_sram_len; |
| } |
| |
| ptr = kzalloc(len, GFP_KERNEL); |
| if (!ptr) |
| return -ENOMEM; |
| |
| iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len); |
| |
| ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len); |
| |
| kfree(ptr); |
| |
| return ret; |
| } |
| |
| static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf, |
| size_t count, loff_t *ppos) |
| { |
| const struct fw_img *img; |
| u32 offset, len; |
| u32 img_offset, img_len; |
| |
| if (!mvm->ucode_loaded) |
| return -EINVAL; |
| |
| img = &mvm->fw->img[mvm->cur_ucode]; |
| img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset; |
| img_len = img->sec[IWL_UCODE_SECTION_DATA].len; |
| |
| if (sscanf(buf, "%x,%x", &offset, &len) == 2) { |
| if ((offset & 0x3) || (len & 0x3)) |
| return -EINVAL; |
| |
| if (offset + len > img_offset + img_len) |
| return -EINVAL; |
| |
| mvm->dbgfs_sram_offset = offset; |
| mvm->dbgfs_sram_len = len; |
| } else { |
| mvm->dbgfs_sram_offset = 0; |
| mvm->dbgfs_sram_len = 0; |
| } |
| |
| return count; |
| } |
| |
| static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_mvm *mvm = file->private_data; |
| struct ieee80211_sta *sta; |
| char buf[400]; |
| int i, pos = 0, bufsz = sizeof(buf); |
| |
| mutex_lock(&mvm->mutex); |
| |
| for (i = 0; i < IWL_MVM_STATION_COUNT; i++) { |
| pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i); |
| sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], |
| lockdep_is_held(&mvm->mutex)); |
| if (!sta) |
| pos += scnprintf(buf + pos, bufsz - pos, "N/A\n"); |
| else if (IS_ERR(sta)) |
| pos += scnprintf(buf + pos, bufsz - pos, "%ld\n", |
| PTR_ERR(sta)); |
| else |
| pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", |
| sta->addr); |
| } |
| |
| mutex_unlock(&mvm->mutex); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| } |
| |
| static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_mvm *mvm = file->private_data; |
| char buf[64]; |
| int bufsz = sizeof(buf); |
| int pos = 0; |
| |
| pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n", |
| mvm->disable_power_off); |
| pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n", |
| mvm->disable_power_off_d3); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| } |
| |
| static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf, |
| size_t count, loff_t *ppos) |
| { |
| int ret, val; |
| |
| if (!mvm->ucode_loaded) |
| return -EIO; |
| |
| if (!strncmp("disable_power_off_d0=", buf, 21)) { |
| if (sscanf(buf + 21, "%d", &val) != 1) |
| return -EINVAL; |
| mvm->disable_power_off = val; |
| } else if (!strncmp("disable_power_off_d3=", buf, 21)) { |
| if (sscanf(buf + 21, "%d", &val) != 1) |
| return -EINVAL; |
| mvm->disable_power_off_d3 = val; |
| } else { |
| return -EINVAL; |
| } |
| |
| mutex_lock(&mvm->mutex); |
| ret = iwl_mvm_power_update_device(mvm); |
| mutex_unlock(&mvm->mutex); |
| |
| return ret ?: count; |
| } |
| |
| #define BT_MBOX_MSG(_notif, _num, _field) \ |
| ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\ |
| >> BT_MBOX##_num##_##_field##_POS) |
| |
| |
| #define BT_MBOX_PRINT(_num, _field, _end) \ |
| pos += scnprintf(buf + pos, bufsz - pos, \ |
| "\t%s: %d%s", \ |
| #_field, \ |
| BT_MBOX_MSG(notif, _num, _field), \ |
| true ? "\n" : ", "); |
| |
| static |
| int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf, |
| int pos, int bufsz) |
| { |
| pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n"); |
| |
| BT_MBOX_PRINT(0, LE_SLAVE_LAT, false); |
| BT_MBOX_PRINT(0, LE_PROF1, false); |
| BT_MBOX_PRINT(0, LE_PROF2, false); |
| BT_MBOX_PRINT(0, LE_PROF_OTHER, false); |
| BT_MBOX_PRINT(0, CHL_SEQ_N, false); |
| BT_MBOX_PRINT(0, INBAND_S, false); |
| BT_MBOX_PRINT(0, LE_MIN_RSSI, false); |
| BT_MBOX_PRINT(0, LE_SCAN, false); |
| BT_MBOX_PRINT(0, LE_ADV, false); |
| BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false); |
| BT_MBOX_PRINT(0, OPEN_CON_1, true); |
| |
| pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n"); |
| |
| BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false); |
| BT_MBOX_PRINT(1, IP_SR, false); |
| BT_MBOX_PRINT(1, LE_MSTR, false); |
| BT_MBOX_PRINT(1, AGGR_TRFC_LD, false); |
| BT_MBOX_PRINT(1, MSG_TYPE, false); |
| BT_MBOX_PRINT(1, SSN, true); |
| |
| pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n"); |
| |
| BT_MBOX_PRINT(2, SNIFF_ACT, false); |
| BT_MBOX_PRINT(2, PAG, false); |
| BT_MBOX_PRINT(2, INQUIRY, false); |
| BT_MBOX_PRINT(2, CONN, false); |
| BT_MBOX_PRINT(2, SNIFF_INTERVAL, false); |
| BT_MBOX_PRINT(2, DISC, false); |
| BT_MBOX_PRINT(2, SCO_TX_ACT, false); |
| BT_MBOX_PRINT(2, SCO_RX_ACT, false); |
| BT_MBOX_PRINT(2, ESCO_RE_TX, false); |
| BT_MBOX_PRINT(2, SCO_DURATION, true); |
| |
| pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n"); |
| |
| BT_MBOX_PRINT(3, SCO_STATE, false); |
| BT_MBOX_PRINT(3, SNIFF_STATE, false); |
| BT_MBOX_PRINT(3, A2DP_STATE, false); |
| BT_MBOX_PRINT(3, ACL_STATE, false); |
| BT_MBOX_PRINT(3, MSTR_STATE, false); |
| BT_MBOX_PRINT(3, OBX_STATE, false); |
| BT_MBOX_PRINT(3, OPEN_CON_2, false); |
| BT_MBOX_PRINT(3, TRAFFIC_LOAD, false); |
| BT_MBOX_PRINT(3, CHL_SEQN_LSB, false); |
| BT_MBOX_PRINT(3, INBAND_P, false); |
| BT_MBOX_PRINT(3, MSG_TYPE_2, false); |
| BT_MBOX_PRINT(3, SSN_2, false); |
| BT_MBOX_PRINT(3, UPDATE_REQUEST, true); |
| |
| return pos; |
| } |
| |
| static |
| int iwl_mvm_coex_dump_mbox_old(struct iwl_bt_coex_profile_notif_old *notif, |
| char *buf, int pos, int bufsz) |
| { |
| pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n"); |
| |
| BT_MBOX_PRINT(0, LE_SLAVE_LAT, false); |
| BT_MBOX_PRINT(0, LE_PROF1, false); |
| BT_MBOX_PRINT(0, LE_PROF2, false); |
| BT_MBOX_PRINT(0, LE_PROF_OTHER, false); |
| BT_MBOX_PRINT(0, CHL_SEQ_N, false); |
| BT_MBOX_PRINT(0, INBAND_S, false); |
| BT_MBOX_PRINT(0, LE_MIN_RSSI, false); |
| BT_MBOX_PRINT(0, LE_SCAN, false); |
| BT_MBOX_PRINT(0, LE_ADV, false); |
| BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false); |
| BT_MBOX_PRINT(0, OPEN_CON_1, true); |
| |
| pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n"); |
| |
| BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false); |
| BT_MBOX_PRINT(1, IP_SR, false); |
| BT_MBOX_PRINT(1, LE_MSTR, false); |
| BT_MBOX_PRINT(1, AGGR_TRFC_LD, false); |
| BT_MBOX_PRINT(1, MSG_TYPE, false); |
| BT_MBOX_PRINT(1, SSN, true); |
| |
| pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n"); |
| |
| BT_MBOX_PRINT(2, SNIFF_ACT, false); |
| BT_MBOX_PRINT(2, PAG, false); |
| BT_MBOX_PRINT(2, INQUIRY, false); |
| BT_MBOX_PRINT(2, CONN, false); |
| BT_MBOX_PRINT(2, SNIFF_INTERVAL, false); |
| BT_MBOX_PRINT(2, DISC, false); |
| BT_MBOX_PRINT(2, SCO_TX_ACT, false); |
| BT_MBOX_PRINT(2, SCO_RX_ACT, false); |
| BT_MBOX_PRINT(2, ESCO_RE_TX, false); |
| BT_MBOX_PRINT(2, SCO_DURATION, true); |
| |
| pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n"); |
| |
| BT_MBOX_PRINT(3, SCO_STATE, false); |
| BT_MBOX_PRINT(3, SNIFF_STATE, false); |
| BT_MBOX_PRINT(3, A2DP_STATE, false); |
| BT_MBOX_PRINT(3, ACL_STATE, false); |
| BT_MBOX_PRINT(3, MSTR_STATE, false); |
| BT_MBOX_PRINT(3, OBX_STATE, false); |
| BT_MBOX_PRINT(3, OPEN_CON_2, false); |
| BT_MBOX_PRINT(3, TRAFFIC_LOAD, false); |
| BT_MBOX_PRINT(3, CHL_SEQN_LSB, false); |
| BT_MBOX_PRINT(3, INBAND_P, false); |
| BT_MBOX_PRINT(3, MSG_TYPE_2, false); |
| BT_MBOX_PRINT(3, SSN_2, false); |
| BT_MBOX_PRINT(3, UPDATE_REQUEST, true); |
| |
| return pos; |
| } |
| |
| static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_mvm *mvm = file->private_data; |
| char *buf; |
| int ret, pos = 0, bufsz = sizeof(char) * 1024; |
| |
| buf = kmalloc(bufsz, GFP_KERNEL); |
| if (!buf) |
| return -ENOMEM; |
| |
| mutex_lock(&mvm->mutex); |
| |
| if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT)) { |
| struct iwl_bt_coex_profile_notif_old *notif = |
| &mvm->last_bt_notif_old; |
| |
| pos += iwl_mvm_coex_dump_mbox_old(notif, buf, pos, bufsz); |
| |
| pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n", |
| notif->bt_ci_compliance); |
| pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n", |
| le32_to_cpu(notif->primary_ch_lut)); |
| pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n", |
| le32_to_cpu(notif->secondary_ch_lut)); |
| pos += scnprintf(buf+pos, |
| bufsz-pos, "bt_activity_grading = %d\n", |
| le32_to_cpu(notif->bt_activity_grading)); |
| pos += scnprintf(buf+pos, bufsz-pos, |
| "antenna isolation = %d CORUN LUT index = %d\n", |
| mvm->last_ant_isol, mvm->last_corun_lut); |
| } else { |
| struct iwl_bt_coex_profile_notif *notif = |
| &mvm->last_bt_notif; |
| |
| pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz); |
| |
| pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n", |
| notif->bt_ci_compliance); |
| pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n", |
| le32_to_cpu(notif->primary_ch_lut)); |
| pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n", |
| le32_to_cpu(notif->secondary_ch_lut)); |
| pos += scnprintf(buf+pos, |
| bufsz-pos, "bt_activity_grading = %d\n", |
| le32_to_cpu(notif->bt_activity_grading)); |
| pos += scnprintf(buf+pos, bufsz-pos, |
| "antenna isolation = %d CORUN LUT index = %d\n", |
| mvm->last_ant_isol, mvm->last_corun_lut); |
| } |
| |
| mutex_unlock(&mvm->mutex); |
| |
| ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| kfree(buf); |
| |
| return ret; |
| } |
| #undef BT_MBOX_PRINT |
| |
| static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_mvm *mvm = file->private_data; |
| char buf[256]; |
| int bufsz = sizeof(buf); |
| int pos = 0; |
| |
| mutex_lock(&mvm->mutex); |
| |
| if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT)) { |
| struct iwl_bt_coex_ci_cmd_old *cmd = &mvm->last_bt_ci_cmd_old; |
| |
| pos += scnprintf(buf+pos, bufsz-pos, |
| "Channel inhibition CMD\n"); |
| pos += scnprintf(buf+pos, bufsz-pos, |
| "\tPrimary Channel Bitmap 0x%016llx\n", |
| le64_to_cpu(cmd->bt_primary_ci)); |
| pos += scnprintf(buf+pos, bufsz-pos, |
| "\tSecondary Channel Bitmap 0x%016llx\n", |
| le64_to_cpu(cmd->bt_secondary_ci)); |
| |
| pos += scnprintf(buf+pos, bufsz-pos, "BT Configuration CMD\n"); |
| pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill Mask 0x%08x\n", |
| iwl_bt_ack_kill_msk[mvm->bt_kill_msk]); |
| pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill Mask 0x%08x\n", |
| iwl_bt_cts_kill_msk[mvm->bt_kill_msk]); |
| |
| } else { |
| struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd; |
| |
| pos += scnprintf(buf+pos, bufsz-pos, |
| "Channel inhibition CMD\n"); |
| pos += scnprintf(buf+pos, bufsz-pos, |
| "\tPrimary Channel Bitmap 0x%016llx\n", |
| le64_to_cpu(cmd->bt_primary_ci)); |
| pos += scnprintf(buf+pos, bufsz-pos, |
| "\tSecondary Channel Bitmap 0x%016llx\n", |
| le64_to_cpu(cmd->bt_secondary_ci)); |
| |
| pos += scnprintf(buf+pos, bufsz-pos, "BT Configuration CMD\n"); |
| pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill Mask 0x%08x\n", |
| iwl_bt_ack_kill_msk[mvm->bt_kill_msk]); |
| pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill Mask 0x%08x\n", |
| iwl_bt_cts_kill_msk[mvm->bt_kill_msk]); |
| } |
| |
| mutex_unlock(&mvm->mutex); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| } |
| |
| static ssize_t |
| iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf, |
| size_t count, loff_t *ppos) |
| { |
| u32 bt_tx_prio; |
| |
| if (sscanf(buf, "%u", &bt_tx_prio) != 1) |
| return -EINVAL; |
| if (bt_tx_prio > 4) |
| return -EINVAL; |
| |
| mvm->bt_tx_prio = bt_tx_prio; |
| |
| return count; |
| } |
| |
| static ssize_t |
| iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf, |
| size_t count, loff_t *ppos) |
| { |
| static const char * const modes_str[BT_FORCE_ANT_MAX] = { |
| [BT_FORCE_ANT_DIS] = "dis", |
| [BT_FORCE_ANT_AUTO] = "auto", |
| [BT_FORCE_ANT_BT] = "bt", |
| [BT_FORCE_ANT_WIFI] = "wifi", |
| }; |
| int ret, bt_force_ant_mode; |
| |
| for (bt_force_ant_mode = 0; |
| bt_force_ant_mode < ARRAY_SIZE(modes_str); |
| bt_force_ant_mode++) { |
| if (!strcmp(buf, modes_str[bt_force_ant_mode])) |
| break; |
| } |
| |
| if (bt_force_ant_mode >= ARRAY_SIZE(modes_str)) |
| return -EINVAL; |
| |
| ret = 0; |
| mutex_lock(&mvm->mutex); |
| if (mvm->bt_force_ant_mode == bt_force_ant_mode) |
| goto out; |
| |
| mvm->bt_force_ant_mode = bt_force_ant_mode; |
| IWL_DEBUG_COEX(mvm, "Force mode: %s\n", |
| modes_str[mvm->bt_force_ant_mode]); |
| ret = iwl_send_bt_init_conf(mvm); |
| |
| out: |
| mutex_unlock(&mvm->mutex); |
| return ret ?: count; |
| } |
| |
| #define PRINT_STATS_LE32(_str, _val) \ |
| pos += scnprintf(buf + pos, bufsz - pos, \ |
| fmt_table, _str, \ |
| le32_to_cpu(_val)) |
| |
| static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file, |
| char __user *user_buf, size_t count, |
| loff_t *ppos) |
| { |
| struct iwl_mvm *mvm = file->private_data; |
| static const char *fmt_table = "\t%-30s %10u\n"; |
| static const char *fmt_header = "%-32s\n"; |
| int pos = 0; |
| char *buf; |
| int ret; |
| /* 43 is the size of each data line, 33 is the size of each header */ |
| size_t bufsz = |
| ((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) + |
| (4 * 33) + 1; |
| |
| struct mvm_statistics_rx_phy *ofdm; |
| struct mvm_statistics_rx_phy *cck; |
| struct mvm_statistics_rx_non_phy *general; |
| struct mvm_statistics_rx_ht_phy *ht; |
| |
| buf = kzalloc(bufsz, GFP_KERNEL); |
| if (!buf) |
| return -ENOMEM; |
| |
| mutex_lock(&mvm->mutex); |
| |
| ofdm = &mvm->rx_stats.ofdm; |
| cck = &mvm->rx_stats.cck; |
| general = &mvm->rx_stats.general; |
| ht = &mvm->rx_stats.ofdm_ht; |
| |
| pos += scnprintf(buf + pos, bufsz - pos, fmt_header, |
| "Statistics_Rx - OFDM"); |
| PRINT_STATS_LE32("ina_cnt", ofdm->ina_cnt); |
| PRINT_STATS_LE32("fina_cnt", ofdm->fina_cnt); |
| PRINT_STATS_LE32("plcp_err", ofdm->plcp_err); |
| PRINT_STATS_LE32("crc32_err", ofdm->crc32_err); |
| PRINT_STATS_LE32("overrun_err", ofdm->overrun_err); |
| PRINT_STATS_LE32("early_overrun_err", ofdm->early_overrun_err); |
| PRINT_STATS_LE32("crc32_good", ofdm->crc32_good); |
| PRINT_STATS_LE32("false_alarm_cnt", ofdm->false_alarm_cnt); |
| PRINT_STATS_LE32("fina_sync_err_cnt", ofdm->fina_sync_err_cnt); |
| PRINT_STATS_LE32("sfd_timeout", ofdm->sfd_timeout); |
| PRINT_STATS_LE32("fina_timeout", ofdm->fina_timeout); |
| PRINT_STATS_LE32("unresponded_rts", ofdm->unresponded_rts); |
| PRINT_STATS_LE32("rxe_frame_lmt_overrun", |
| ofdm->rxe_frame_limit_overrun); |
| PRINT_STATS_LE32("sent_ack_cnt", ofdm->sent_ack_cnt); |
| PRINT_STATS_LE32("sent_cts_cnt", ofdm->sent_cts_cnt); |
| PRINT_STATS_LE32("sent_ba_rsp_cnt", ofdm->sent_ba_rsp_cnt); |
| PRINT_STATS_LE32("dsp_self_kill", ofdm->dsp_self_kill); |
| PRINT_STATS_LE32("mh_format_err", ofdm->mh_format_err); |
| PRINT_STATS_LE32("re_acq_main_rssi_sum", ofdm->re_acq_main_rssi_sum); |
| PRINT_STATS_LE32("reserved", ofdm->reserved); |
| |
| pos += scnprintf(buf + pos, bufsz - pos, fmt_header, |
| "Statistics_Rx - CCK"); |
| PRINT_STATS_LE32("ina_cnt", cck->ina_cnt); |
| PRINT_STATS_LE32("fina_cnt", cck->fina_cnt); |
| PRINT_STATS_LE32("plcp_err", cck->plcp_err); |
| PRINT_STATS_LE32("crc32_err", cck->crc32_err); |
| PRINT_STATS_LE32("overrun_err", cck->overrun_err); |
| PRINT_STATS_LE32("early_overrun_err", cck->early_overrun_err); |
| PRINT_STATS_LE32("crc32_good", cck->crc32_good); |
| PRINT_STATS_LE32("false_alarm_cnt", cck->false_alarm_cnt); |
| PRINT_STATS_LE32("fina_sync_err_cnt", cck->fina_sync_err_cnt); |
| PRINT_STATS_LE32("sfd_timeout", cck->sfd_timeout); |
| PRINT_STATS_LE32("fina_timeout", cck->fina_timeout); |
| PRINT_STATS_LE32("unresponded_rts", cck->unresponded_rts); |
| PRINT_STATS_LE32("rxe_frame_lmt_overrun", |
| cck->rxe_frame_limit_overrun); |
| PRINT_STATS_LE32("sent_ack_cnt", cck->sent_ack_cnt); |
| PRINT_STATS_LE32("sent_cts_cnt", cck->sent_cts_cnt); |
| PRINT_STATS_LE32("sent_ba_rsp_cnt", cck->sent_ba_rsp_cnt); |
| PRINT_STATS_LE32("dsp_self_kill", cck->dsp_self_kill); |
| PRINT_STATS_LE32("mh_format_err", cck->mh_format_err); |
| PRINT_STATS_LE32("re_acq_main_rssi_sum", cck->re_acq_main_rssi_sum); |
| PRINT_STATS_LE32("reserved", cck->reserved); |
| |
| pos += scnprintf(buf + pos, bufsz - pos, fmt_header, |
| "Statistics_Rx - GENERAL"); |
| PRINT_STATS_LE32("bogus_cts", general->bogus_cts); |
| PRINT_STATS_LE32("bogus_ack", general->bogus_ack); |
| PRINT_STATS_LE32("non_bssid_frames", general->non_bssid_frames); |
| PRINT_STATS_LE32("filtered_frames", general->filtered_frames); |
| PRINT_STATS_LE32("non_channel_beacons", general->non_channel_beacons); |
| PRINT_STATS_LE32("channel_beacons", general->channel_beacons); |
| PRINT_STATS_LE32("num_missed_bcon", general->num_missed_bcon); |
| PRINT_STATS_LE32("adc_rx_saturation_time", |
| general->adc_rx_saturation_time); |
| PRINT_STATS_LE32("ina_detection_search_time", |
| general->ina_detection_search_time); |
| PRINT_STATS_LE32("beacon_silence_rssi_a", |
| general->beacon_silence_rssi_a); |
| PRINT_STATS_LE32("beacon_silence_rssi_b", |
| general->beacon_silence_rssi_b); |
| PRINT_STATS_LE32("beacon_silence_rssi_c", |
| general->beacon_silence_rssi_c); |
| PRINT_STATS_LE32("interference_data_flag", |
| general->interference_data_flag); |
| PRINT_STATS_LE32("channel_load", general->channel_load); |
| PRINT_STATS_LE32("dsp_false_alarms", general->dsp_false_alarms); |
| PRINT_STATS_LE32("beacon_rssi_a", general->beacon_rssi_a); |
| PRINT_STATS_LE32("beacon_rssi_b", general->beacon_rssi_b); |
| PRINT_STATS_LE32("beacon_rssi_c", general->beacon_rssi_c); |
| PRINT_STATS_LE32("beacon_energy_a", general->beacon_energy_a); |
| PRINT_STATS_LE32("beacon_energy_b", general->beacon_energy_b); |
| PRINT_STATS_LE32("beacon_energy_c", general->beacon_energy_c); |
| PRINT_STATS_LE32("num_bt_kills", general->num_bt_kills); |
| PRINT_STATS_LE32("mac_id", general->mac_id); |
| PRINT_STATS_LE32("directed_data_mpdu", general->directed_data_mpdu); |
| |
| pos += scnprintf(buf + pos, bufsz - pos, fmt_header, |
| "Statistics_Rx - HT"); |
| PRINT_STATS_LE32("plcp_err", ht->plcp_err); |
| PRINT_STATS_LE32("overrun_err", ht->overrun_err); |
| PRINT_STATS_LE32("early_overrun_err", ht->early_overrun_err); |
| PRINT_STATS_LE32("crc32_good", ht->crc32_good); |
| PRINT_STATS_LE32("crc32_err", ht->crc32_err); |
| PRINT_STATS_LE32("mh_format_err", ht->mh_format_err); |
| PRINT_STATS_LE32("agg_crc32_good", ht->agg_crc32_good); |
| PRINT_STATS_LE32("agg_mpdu_cnt", ht->agg_mpdu_cnt); |
| PRINT_STATS_LE32("agg_cnt", ht->agg_cnt); |
| PRINT_STATS_LE32("unsupport_mcs", ht->unsupport_mcs); |
| |
| mutex_unlock(&mvm->mutex); |
| |
| ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| kfree(buf); |
| |
| return ret; |
| } |
| #undef PRINT_STAT_LE32 |
| |
| static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm, |
| char __user *user_buf, size_t count, |
| loff_t *ppos, |
| struct iwl_mvm_frame_stats *stats) |
| { |
| char *buff, *pos, *endpos; |
| int idx, i; |
| int ret; |
| static const size_t bufsz = 1024; |
| |
| buff = kmalloc(bufsz, GFP_KERNEL); |
| if (!buff) |
| return -ENOMEM; |
| |
| spin_lock_bh(&mvm->drv_stats_lock); |
| |
| pos = buff; |
| endpos = pos + bufsz; |
| |
| pos += scnprintf(pos, endpos - pos, |
| "Legacy/HT/VHT\t:\t%d/%d/%d\n", |
| stats->legacy_frames, |
| stats->ht_frames, |
| stats->vht_frames); |
| pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n", |
| stats->bw_20_frames, |
| stats->bw_40_frames, |
| stats->bw_80_frames); |
| pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n", |
| stats->ngi_frames, |
| stats->sgi_frames); |
| pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n", |
| stats->siso_frames, |
| stats->mimo2_frames); |
| pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n", |
| stats->fail_frames, |
| stats->success_frames); |
| pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n", |
| stats->agg_frames); |
| pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n", |
| stats->ampdu_count); |
| pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n", |
| stats->ampdu_count > 0 ? |
| (stats->agg_frames / stats->ampdu_count) : 0); |
| |
| pos += scnprintf(pos, endpos - pos, "Last Rates\n"); |
| |
| idx = stats->last_frame_idx - 1; |
| for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) { |
| idx = (idx + 1) % ARRAY_SIZE(stats->last_rates); |
| if (stats->last_rates[idx] == 0) |
| continue; |
| pos += scnprintf(pos, endpos - pos, "Rate[%d]: ", |
| (int)(ARRAY_SIZE(stats->last_rates) - i)); |
| pos += rs_pretty_print_rate(pos, stats->last_rates[idx]); |
| } |
| spin_unlock_bh(&mvm->drv_stats_lock); |
| |
| ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); |
| kfree(buff); |
| |
| return ret; |
| } |
| |
| static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file, |
| char __user *user_buf, size_t count, |
| loff_t *ppos) |
| { |
| struct iwl_mvm *mvm = file->private_data; |
| |
| return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos, |
| &mvm->drv_rx_stats); |
| } |
| |
| static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf, |
| size_t count, loff_t *ppos) |
| { |
| int ret; |
| |
| mutex_lock(&mvm->mutex); |
| |
| /* allow one more restart that we're provoking here */ |
| if (mvm->restart_fw >= 0) |
| mvm->restart_fw++; |
| |
| /* take the return value to make compiler happy - it will fail anyway */ |
| ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL); |
| |
| mutex_unlock(&mvm->mutex); |
| |
| return count; |
| } |
| |
| static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf, |
| size_t count, loff_t *ppos) |
| { |
| int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_NMI); |
| if (ret) |
| return ret; |
| |
| iwl_force_nmi(mvm->trans); |
| |
| iwl_mvm_unref(mvm, IWL_MVM_REF_NMI); |
| |
| return count; |
| } |
| |
| static ssize_t |
| iwl_dbgfs_scan_ant_rxchain_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_mvm *mvm = file->private_data; |
| int pos = 0; |
| char buf[32]; |
| const size_t bufsz = sizeof(buf); |
| |
| /* print which antennas were set for the scan command by the user */ |
| pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: "); |
| if (mvm->scan_rx_ant & ANT_A) |
| pos += scnprintf(buf + pos, bufsz - pos, "A"); |
| if (mvm->scan_rx_ant & ANT_B) |
| pos += scnprintf(buf + pos, bufsz - pos, "B"); |
| if (mvm->scan_rx_ant & ANT_C) |
| pos += scnprintf(buf + pos, bufsz - pos, "C"); |
| pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| } |
| |
| static ssize_t |
| iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf, |
| size_t count, loff_t *ppos) |
| { |
| u8 scan_rx_ant; |
| |
| if (sscanf(buf, "%hhx", &scan_rx_ant) != 1) |
| return -EINVAL; |
| if (scan_rx_ant > ANT_ABC) |
| return -EINVAL; |
| if (scan_rx_ant & ~mvm->fw->valid_rx_ant) |
| return -EINVAL; |
| |
| mvm->scan_rx_ant = scan_rx_ant; |
| |
| return count; |
| } |
| |
| #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__) |
| #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
| static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_mvm *mvm = file->private_data; |
| struct iwl_bcast_filter_cmd cmd; |
| const struct iwl_fw_bcast_filter *filter; |
| char *buf; |
| int bufsz = 1024; |
| int i, j, pos = 0; |
| ssize_t ret; |
| |
| buf = kzalloc(bufsz, GFP_KERNEL); |
| if (!buf) |
| return -ENOMEM; |
| |
| mutex_lock(&mvm->mutex); |
| if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { |
| ADD_TEXT("None\n"); |
| mutex_unlock(&mvm->mutex); |
| goto out; |
| } |
| mutex_unlock(&mvm->mutex); |
| |
| for (i = 0; cmd.filters[i].attrs[0].mask; i++) { |
| filter = &cmd.filters[i]; |
| |
| ADD_TEXT("Filter [%d]:\n", i); |
| ADD_TEXT("\tDiscard=%d\n", filter->discard); |
| ADD_TEXT("\tFrame Type: %s\n", |
| filter->frame_type ? "IPv4" : "Generic"); |
| |
| for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) { |
| const struct iwl_fw_bcast_filter_attr *attr; |
| |
| attr = &filter->attrs[j]; |
| if (!attr->mask) |
| break; |
| |
| ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n", |
| j, attr->offset, |
| attr->offset_type ? "IP End" : |
| "Payload Start", |
| be32_to_cpu(attr->mask), |
| be32_to_cpu(attr->val), |
| le16_to_cpu(attr->reserved1)); |
| } |
| } |
| out: |
| ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| kfree(buf); |
| return ret; |
| } |
| |
| static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf, |
| size_t count, loff_t *ppos) |
| { |
| int pos, next_pos; |
| struct iwl_fw_bcast_filter filter = {}; |
| struct iwl_bcast_filter_cmd cmd; |
| u32 filter_id, attr_id, mask, value; |
| int err = 0; |
| |
| if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard, |
| &filter.frame_type, &pos) != 3) |
| return -EINVAL; |
| |
| if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) || |
| filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4) |
| return -EINVAL; |
| |
| for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs); |
| attr_id++) { |
| struct iwl_fw_bcast_filter_attr *attr = |
| &filter.attrs[attr_id]; |
| |
| if (pos >= count) |
| break; |
| |
| if (sscanf(&buf[pos], "%hhi %hhi %i %i %n", |
| &attr->offset, &attr->offset_type, |
| &mask, &value, &next_pos) != 4) |
| return -EINVAL; |
| |
| attr->mask = cpu_to_be32(mask); |
| attr->val = cpu_to_be32(value); |
| if (mask) |
| filter.num_attrs++; |
| |
| pos += next_pos; |
| } |
| |
| mutex_lock(&mvm->mutex); |
| memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id], |
| &filter, sizeof(filter)); |
| |
| /* send updated bcast filtering configuration */ |
| if (mvm->dbgfs_bcast_filtering.override && |
| iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) |
| err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, |
| sizeof(cmd), &cmd); |
| mutex_unlock(&mvm->mutex); |
| |
| return err ?: count; |
| } |
| |
| static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_mvm *mvm = file->private_data; |
| struct iwl_bcast_filter_cmd cmd; |
| char *buf; |
| int bufsz = 1024; |
| int i, pos = 0; |
| ssize_t ret; |
| |
| buf = kzalloc(bufsz, GFP_KERNEL); |
| if (!buf) |
| return -ENOMEM; |
| |
| mutex_lock(&mvm->mutex); |
| if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { |
| ADD_TEXT("None\n"); |
| mutex_unlock(&mvm->mutex); |
| goto out; |
| } |
| mutex_unlock(&mvm->mutex); |
| |
| for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) { |
| const struct iwl_fw_bcast_mac *mac = &cmd.macs[i]; |
| |
| ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n", |
| i, mac->default_discard, mac->attached_filters); |
| } |
| out: |
| ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| kfree(buf); |
| return ret; |
| } |
| |
| static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm, |
| char *buf, size_t count, |
| loff_t *ppos) |
| { |
| struct iwl_bcast_filter_cmd cmd; |
| struct iwl_fw_bcast_mac mac = {}; |
| u32 mac_id, attached_filters; |
| int err = 0; |
| |
| if (!mvm->bcast_filters) |
| return -ENOENT; |
| |
| if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard, |
| &attached_filters) != 3) |
| return -EINVAL; |
| |
| if (mac_id >= ARRAY_SIZE(cmd.macs) || |
| mac.default_discard > 1 || |
| attached_filters >= BIT(ARRAY_SIZE(cmd.filters))) |
| return -EINVAL; |
| |
| mac.attached_filters = cpu_to_le16(attached_filters); |
| |
| mutex_lock(&mvm->mutex); |
| memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id], |
| &mac, sizeof(mac)); |
| |
| /* send updated bcast filtering configuration */ |
| if (mvm->dbgfs_bcast_filtering.override && |
| iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) |
| err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, |
| sizeof(cmd), &cmd); |
| mutex_unlock(&mvm->mutex); |
| |
| return err ?: count; |
| } |
| #endif |
| |
| #ifdef CONFIG_PM_SLEEP |
| static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf, |
| size_t count, loff_t *ppos) |
| { |
| int store; |
| |
| if (sscanf(buf, "%d", &store) != 1) |
| return -EINVAL; |
| |
| mvm->store_d3_resume_sram = store; |
| |
| return count; |
| } |
| |
| static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_mvm *mvm = file->private_data; |
| const struct fw_img *img; |
| int ofs, len, pos = 0; |
| size_t bufsz, ret; |
| char *buf; |
| u8 *ptr = mvm->d3_resume_sram; |
| |
| img = &mvm->fw->img[IWL_UCODE_WOWLAN]; |
| len = img->sec[IWL_UCODE_SECTION_DATA].len; |
| |
| bufsz = len * 4 + 256; |
| buf = kzalloc(bufsz, GFP_KERNEL); |
| if (!buf) |
| return -ENOMEM; |
| |
| pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n", |
| mvm->store_d3_resume_sram ? "en" : "dis"); |
| |
| if (ptr) { |
| for (ofs = 0; ofs < len; ofs += 16) { |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "0x%.4x ", ofs); |
| hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos, |
| bufsz - pos, false); |
| pos += strlen(buf + pos); |
| if (bufsz - pos > 0) |
| buf[pos++] = '\n'; |
| } |
| } else { |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "(no data captured)\n"); |
| } |
| |
| ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| |
| kfree(buf); |
| |
| return ret; |
| } |
| #endif |
| |
| #define PRINT_MVM_REF(ref) do { \ |
| if (mvm->refs[ref]) \ |
| pos += scnprintf(buf + pos, bufsz - pos, \ |
| "\t(0x%lx): %d %s\n", \ |
| BIT(ref), mvm->refs[ref], #ref); \ |
| } while (0) |
| |
| static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_mvm *mvm = file->private_data; |
| int i, pos = 0; |
| char buf[256]; |
| const size_t bufsz = sizeof(buf); |
| u32 refs = 0; |
| |
| for (i = 0; i < IWL_MVM_REF_COUNT; i++) |
| if (mvm->refs[i]) |
| refs |= BIT(i); |
| |
| pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%x\n", |
| refs); |
| |
| PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN); |
| PRINT_MVM_REF(IWL_MVM_REF_SCAN); |
| PRINT_MVM_REF(IWL_MVM_REF_ROC); |
| PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT); |
| PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS); |
| PRINT_MVM_REF(IWL_MVM_REF_USER); |
| PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| } |
| |
| static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf, |
| size_t count, loff_t *ppos) |
| { |
| unsigned long value; |
| int ret; |
| bool taken; |
| |
| ret = kstrtoul(buf, 10, &value); |
| if (ret < 0) |
| return ret; |
| |
| mutex_lock(&mvm->mutex); |
| |
| taken = mvm->refs[IWL_MVM_REF_USER]; |
| if (value == 1 && !taken) |
| iwl_mvm_ref(mvm, IWL_MVM_REF_USER); |
| else if (value == 0 && taken) |
| iwl_mvm_unref(mvm, IWL_MVM_REF_USER); |
| else |
| ret = -EINVAL; |
| |
| mutex_unlock(&mvm->mutex); |
| |
| if (ret < 0) |
| return ret; |
| return count; |
| } |
| |
| #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ |
| _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) |
| #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ |
| _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) |
| #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \ |
| if (!debugfs_create_file(alias, mode, parent, mvm, \ |
| &iwl_dbgfs_##name##_ops)) \ |
| goto err; \ |
| } while (0) |
| #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \ |
| MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode) |
| |
| static ssize_t |
| iwl_dbgfs_prph_reg_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_mvm *mvm = file->private_data; |
| int pos = 0; |
| char buf[32]; |
| const size_t bufsz = sizeof(buf); |
| int ret; |
| |
| if (!mvm->dbgfs_prph_reg_addr) |
| return -EINVAL; |
| |
| ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_READ); |
| if (ret) |
| return ret; |
| |
| pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n", |
| mvm->dbgfs_prph_reg_addr, |
| iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr)); |
| |
| iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_READ); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| } |
| |
| static ssize_t |
| iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf, |
| size_t count, loff_t *ppos) |
| { |
| u8 args; |
| u32 value; |
| int ret; |
| |
| args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value); |
| /* if we only want to set the reg address - nothing more to do */ |
| if (args == 1) |
| goto out; |
| |
| /* otherwise, make sure we have both address and value */ |
| if (args != 2) |
| return -EINVAL; |
| |
| ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE); |
| if (ret) |
| return ret; |
| |
| iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value); |
| |
| iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE); |
| out: |
| return count; |
| } |
| |
| MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); |
| |
| /* Device wide debugfs entries */ |
| MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); |
| MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8); |
| MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64); |
| MVM_DEBUGFS_READ_FILE_OPS(stations); |
| MVM_DEBUGFS_READ_FILE_OPS(bt_notif); |
| MVM_DEBUGFS_READ_FILE_OPS(bt_cmd); |
| MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64); |
| MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats); |
| MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats); |
| MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10); |
| MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10); |
| MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10); |
| MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10); |
| MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8); |
| MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8); |
| |
| static const struct file_operations iwl_dbgfs_fw_error_dump_ops = { |
| .open = iwl_dbgfs_fw_error_dump_open, |
| .read = iwl_dbgfs_fw_error_dump_read, |
| .release = iwl_dbgfs_fw_error_dump_release, |
| }; |
| |
| #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
| MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256); |
| MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256); |
| #endif |
| |
| #ifdef CONFIG_PM_SLEEP |
| MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8); |
| #endif |
| |
| int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir) |
| { |
| struct dentry *bcast_dir __maybe_unused; |
| char buf[100]; |
| |
| spin_lock_init(&mvm->drv_stats_lock); |
| |
| mvm->debugfs_dir = dbgfs_dir; |
| |
| MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR); |
| MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR); |
| MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR); |
| MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR); |
| MVM_DEBUGFS_ADD_FILE(fw_error_dump, dbgfs_dir, S_IRUSR); |
| MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR); |
| MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR); |
| MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, |
| S_IRUSR | S_IWUSR); |
| MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR); |
| MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR); |
| MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR); |
| MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR); |
| MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR); |
| MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, S_IWUSR); |
| MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, |
| S_IWUSR | S_IRUSR); |
| MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR); |
| MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR); |
| |
| #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
| if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) { |
| bcast_dir = debugfs_create_dir("bcast_filtering", |
| mvm->debugfs_dir); |
| if (!bcast_dir) |
| goto err; |
| |
| if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR, |
| bcast_dir, |
| &mvm->dbgfs_bcast_filtering.override)) |
| goto err; |
| |
| MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters, |
| bcast_dir, S_IWUSR | S_IRUSR); |
| MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs, |
| bcast_dir, S_IWUSR | S_IRUSR); |
| } |
| #endif |
| |
| #ifdef CONFIG_PM_SLEEP |
| MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR); |
| MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR); |
| if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR, |
| mvm->debugfs_dir, &mvm->d3_wake_sysassert)) |
| goto err; |
| #endif |
| |
| if (!debugfs_create_blob("nvm_hw", S_IRUSR, |
| mvm->debugfs_dir, &mvm->nvm_hw_blob)) |
| goto err; |
| if (!debugfs_create_blob("nvm_sw", S_IRUSR, |
| mvm->debugfs_dir, &mvm->nvm_sw_blob)) |
| goto err; |
| if (!debugfs_create_blob("nvm_calib", S_IRUSR, |
| mvm->debugfs_dir, &mvm->nvm_calib_blob)) |
| goto err; |
| if (!debugfs_create_blob("nvm_prod", S_IRUSR, |
| mvm->debugfs_dir, &mvm->nvm_prod_blob)) |
| goto err; |
| |
| /* |
| * Create a symlink with mac80211. It will be removed when mac80211 |
| * exists (before the opmode exists which removes the target.) |
| */ |
| snprintf(buf, 100, "../../%s/%s", |
| dbgfs_dir->d_parent->d_parent->d_name.name, |
| dbgfs_dir->d_parent->d_name.name); |
| if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf)) |
| goto err; |
| |
| return 0; |
| err: |
| IWL_ERR(mvm, "Can't create the mvm debugfs directory\n"); |
| return -ENOMEM; |
| } |