/****************************************************************************** * * 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 "mvm.h" #include "sta.h" #include "iwl-io.h" #include "iwl-prph.h" #include "debugfs.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 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_mode(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 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; struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; char *buf; int ret, pos = 0, bufsz = sizeof(char) * 1024; buf = kmalloc(bufsz, GFP_KERNEL); if (!buf) return -ENOMEM; mutex_lock(&mvm->mutex); 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); pos += scnprintf(buf+pos, bufsz-pos, "bt_status = %d\n", notif->bt_status); pos += scnprintf(buf+pos, bufsz-pos, "bt_open_conn = %d\n", notif->bt_open_conn); pos += scnprintf(buf+pos, bufsz-pos, "bt_traffic_load = %d\n", notif->bt_traffic_load); pos += scnprintf(buf+pos, bufsz-pos, "bt_agg_traffic_load = %d\n", notif->bt_agg_traffic_load); 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)); 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; struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd; char buf[256]; int bufsz = sizeof(buf); int pos = 0; mutex_lock(&mvm->mutex); pos += scnprintf(buf+pos, bufsz-pos, "Channel inhibition CMD\n"); pos += scnprintf(buf+pos, bufsz-pos, "\tPrimary Channel Bitmap 0x%016llx Fat: %d\n", le64_to_cpu(cmd->bt_primary_ci), !!cmd->co_run_bw_primary); pos += scnprintf(buf+pos, bufsz-pos, "\tSecondary Channel Bitmap 0x%016llx Fat: %d\n", le64_to_cpu(cmd->bt_secondary_ci), !!cmd->co_run_bw_secondary); 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); } #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_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, CMD_SYNC, 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) { iwl_write_prph(mvm->trans, DEVICE_SET_NMI_REG, 1); 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 & ~iwl_fw_valid_rx_ant(mvm->fw)) 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, CMD_SYNC, 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, CMD_SYNC, 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 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) /* 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_WRITE_FILE_OPS(fw_restart, 10); MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10); MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8); #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]; 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(bt_notif, dbgfs_dir, S_IRUSR); MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR); if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD) 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(fw_restart, mvm->debugfs_dir, S_IWUSR); MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR); MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, S_IWUSR | S_IRUSR); #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; }