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linux_dsm_epyc7002/drivers/net/wireless/iwlwifi/mvm/debugfs.c
Emmanuel Grumbach 086f7368d4 iwlwifi: mvm: dump NVM from debugfs 
This allows to see the content of the NVM the driver reads.
Note that the output is in binary, and requires some
external user space tool to display the data properly.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-12-09 22:29:45 +02:00

751 lines
24 KiB
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/******************************************************************************
*
* 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 - 2013 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 - 2013 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 ieee80211_sta *sta;
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);
sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id],
lockdep_is_held(&mvm->mutex));
if (IS_ERR_OR_NULL(sta))
ret = -ENOENT;
else
ret = iwl_mvm_drain_sta(mvm, (void *)sta->drv_priv, 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;
int ofs, len, pos = 0;
size_t bufsz, ret;
char *buf;
u8 *ptr;
if (!mvm->ucode_loaded)
return -EINVAL;
/* default is to dump the entire data segment */
if (!mvm->dbgfs_sram_offset && !mvm->dbgfs_sram_len) {
img = &mvm->fw->img[mvm->cur_ucode];
ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
len = img->sec[IWL_UCODE_SECTION_DATA].len;
} else {
ofs = mvm->dbgfs_sram_offset;
len = mvm->dbgfs_sram_len;
}
bufsz = len * 4 + 256;
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf)
return -ENOMEM;
ptr = kzalloc(len, GFP_KERNEL);
if (!ptr) {
kfree(buf);
return -ENOMEM;
}
pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n", len);
pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n", ofs);
iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
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';
}
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
kfree(ptr);
return ret;
}
static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
u32 offset, len;
if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
if ((offset & 0x3) || (len & 0x3))
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;
}
#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(name, parent, mode) do { \
if (!debugfs_create_file(#name, mode, parent, mvm, \
&iwl_dbgfs_##name##_ops)) \
goto err; \
} while (0)
/* 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_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)
{
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_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;
}
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