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linuxdebug/drivers/net/wireless/ath/ath10k/debug.c

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null pointer error
2024-07-16 15:50:57 +02:00
// SPDX-License-Identifier: ISC
/*
* Copyright (c) 2005-2011 Atheros Communications Inc.
* Copyright (c) 2011-2017 Qualcomm Atheros, Inc.
* Copyright (c) 2018, The Linux Foundation. All rights reserved.
*/
#include <linux/module.h>
#include <linux/debugfs.h>
#include <linux/vmalloc.h>
#include <linux/crc32.h>
#include <linux/firmware.h>
#include "core.h"
#include "debug.h"
#include "hif.h"
#include "wmi-ops.h"
/* ms */
#define ATH10K_DEBUG_HTT_STATS_INTERVAL 1000
#define ATH10K_DEBUG_CAL_DATA_LEN 12064
void ath10k_info(struct ath10k *ar, const char *fmt, ...)
{
struct va_format vaf = {
.fmt = fmt,
};
va_list args;
va_start(args, fmt);
vaf.va = &args;
dev_info(ar->dev, "%pV", &vaf);
trace_ath10k_log_info(ar, &vaf);
va_end(args);
}
EXPORT_SYMBOL(ath10k_info);
void ath10k_debug_print_hwfw_info(struct ath10k *ar)
{
const struct firmware *firmware;
char fw_features[128] = {};
u32 crc = 0;
ath10k_core_get_fw_features_str(ar, fw_features, sizeof(fw_features));
ath10k_info(ar, "%s target 0x%08x chip_id 0x%08x sub %04x:%04x",
ar->hw_params.name,
ar->target_version,
ar->bus_param.chip_id,
ar->id.subsystem_vendor, ar->id.subsystem_device);
ath10k_info(ar, "kconfig debug %d debugfs %d tracing %d dfs %d testmode %d\n",
IS_ENABLED(CONFIG_ATH10K_DEBUG),
IS_ENABLED(CONFIG_ATH10K_DEBUGFS),
IS_ENABLED(CONFIG_ATH10K_TRACING),
IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED),
IS_ENABLED(CONFIG_NL80211_TESTMODE));
firmware = ar->normal_mode_fw.fw_file.firmware;
if (firmware)
crc = crc32_le(0, firmware->data, firmware->size);
ath10k_info(ar, "firmware ver %s api %d features %s crc32 %08x\n",
ar->hw->wiphy->fw_version,
ar->fw_api,
fw_features,
crc);
}
void ath10k_debug_print_board_info(struct ath10k *ar)
{
char boardinfo[100];
const struct firmware *board;
u32 crc;
if (ar->id.bmi_ids_valid)
scnprintf(boardinfo, sizeof(boardinfo), "%d:%d",
ar->id.bmi_chip_id, ar->id.bmi_board_id);
else
scnprintf(boardinfo, sizeof(boardinfo), "N/A");
board = ar->normal_mode_fw.board;
if (!IS_ERR_OR_NULL(board))
crc = crc32_le(0, board->data, board->size);
else
crc = 0;
ath10k_info(ar, "board_file api %d bmi_id %s crc32 %08x",
ar->bd_api,
boardinfo,
crc);
}
void ath10k_debug_print_boot_info(struct ath10k *ar)
{
ath10k_info(ar, "htt-ver %d.%d wmi-op %d htt-op %d cal %s max-sta %d raw %d hwcrypto %d\n",
ar->htt.target_version_major,
ar->htt.target_version_minor,
ar->normal_mode_fw.fw_file.wmi_op_version,
ar->normal_mode_fw.fw_file.htt_op_version,
ath10k_cal_mode_str(ar->cal_mode),
ar->max_num_stations,
test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags),
!test_bit(ATH10K_FLAG_HW_CRYPTO_DISABLED, &ar->dev_flags));
}
void ath10k_print_driver_info(struct ath10k *ar)
{
ath10k_debug_print_hwfw_info(ar);
ath10k_debug_print_board_info(ar);
ath10k_debug_print_boot_info(ar);
}
EXPORT_SYMBOL(ath10k_print_driver_info);
void ath10k_err(struct ath10k *ar, const char *fmt, ...)
{
struct va_format vaf = {
.fmt = fmt,
};
va_list args;
va_start(args, fmt);
vaf.va = &args;
dev_err(ar->dev, "%pV", &vaf);
trace_ath10k_log_err(ar, &vaf);
va_end(args);
}
EXPORT_SYMBOL(ath10k_err);
void ath10k_warn(struct ath10k *ar, const char *fmt, ...)
{
struct va_format vaf = {
.fmt = fmt,
};
va_list args;
va_start(args, fmt);
vaf.va = &args;
dev_warn_ratelimited(ar->dev, "%pV", &vaf);
trace_ath10k_log_warn(ar, &vaf);
va_end(args);
}
EXPORT_SYMBOL(ath10k_warn);
#ifdef CONFIG_ATH10K_DEBUGFS
static ssize_t ath10k_read_wmi_services(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
char *buf;
size_t len = 0, buf_len = 8192;
const char *name;
ssize_t ret_cnt;
bool enabled;
int i;
buf = kzalloc(buf_len, GFP_KERNEL);
if (!buf)
return -ENOMEM;
mutex_lock(&ar->conf_mutex);
spin_lock_bh(&ar->data_lock);
for (i = 0; i < WMI_SERVICE_MAX; i++) {
enabled = test_bit(i, ar->wmi.svc_map);
name = wmi_service_name(i);
if (!name) {
if (enabled)
len += scnprintf(buf + len, buf_len - len,
"%-40s %s (bit %d)\n",
"unknown", "enabled", i);
continue;
}
len += scnprintf(buf + len, buf_len - len,
"%-40s %s\n",
name, enabled ? "enabled" : "-");
}
spin_unlock_bh(&ar->data_lock);
ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
mutex_unlock(&ar->conf_mutex);
kfree(buf);
return ret_cnt;
}
static const struct file_operations fops_wmi_services = {
.read = ath10k_read_wmi_services,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static void ath10k_fw_stats_pdevs_free(struct list_head *head)
{
struct ath10k_fw_stats_pdev *i, *tmp;
list_for_each_entry_safe(i, tmp, head, list) {
list_del(&i->list);
kfree(i);
}
}
static void ath10k_fw_stats_vdevs_free(struct list_head *head)
{
struct ath10k_fw_stats_vdev *i, *tmp;
list_for_each_entry_safe(i, tmp, head, list) {
list_del(&i->list);
kfree(i);
}
}
static void ath10k_fw_stats_peers_free(struct list_head *head)
{
struct ath10k_fw_stats_peer *i, *tmp;
list_for_each_entry_safe(i, tmp, head, list) {
list_del(&i->list);
kfree(i);
}
}
static void ath10k_fw_extd_stats_peers_free(struct list_head *head)
{
struct ath10k_fw_extd_stats_peer *i, *tmp;
list_for_each_entry_safe(i, tmp, head, list) {
list_del(&i->list);
kfree(i);
}
}
static void ath10k_debug_fw_stats_reset(struct ath10k *ar)
{
spin_lock_bh(&ar->data_lock);
ar->debug.fw_stats_done = false;
ar->debug.fw_stats.extended = false;
ath10k_fw_stats_pdevs_free(&ar->debug.fw_stats.pdevs);
ath10k_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs);
ath10k_fw_stats_peers_free(&ar->debug.fw_stats.peers);
ath10k_fw_extd_stats_peers_free(&ar->debug.fw_stats.peers_extd);
spin_unlock_bh(&ar->data_lock);
}
void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb)
{
struct ath10k_fw_stats stats = {};
bool is_start, is_started, is_end;
size_t num_peers;
size_t num_vdevs;
int ret;
INIT_LIST_HEAD(&stats.pdevs);
INIT_LIST_HEAD(&stats.vdevs);
INIT_LIST_HEAD(&stats.peers);
INIT_LIST_HEAD(&stats.peers_extd);
spin_lock_bh(&ar->data_lock);
ret = ath10k_wmi_pull_fw_stats(ar, skb, &stats);
if (ret) {
ath10k_warn(ar, "failed to pull fw stats: %d\n", ret);
goto free;
}
/* Stat data may exceed htc-wmi buffer limit. In such case firmware
* splits the stats data and delivers it in a ping-pong fashion of
* request cmd-update event.
*
* However there is no explicit end-of-data. Instead start-of-data is
* used as an implicit one. This works as follows:
* a) discard stat update events until one with pdev stats is
* delivered - this skips session started at end of (b)
* b) consume stat update events until another one with pdev stats is
* delivered which is treated as end-of-data and is itself discarded
*/
if (ath10k_peer_stats_enabled(ar))
ath10k_sta_update_rx_duration(ar, &stats);
if (ar->debug.fw_stats_done) {
if (!ath10k_peer_stats_enabled(ar))
ath10k_warn(ar, "received unsolicited stats update event\n");
goto free;
}
num_peers = ath10k_wmi_fw_stats_num_peers(&ar->debug.fw_stats.peers);
num_vdevs = ath10k_wmi_fw_stats_num_vdevs(&ar->debug.fw_stats.vdevs);
is_start = (list_empty(&ar->debug.fw_stats.pdevs) &&
!list_empty(&stats.pdevs));
is_end = (!list_empty(&ar->debug.fw_stats.pdevs) &&
!list_empty(&stats.pdevs));
if (is_start)
list_splice_tail_init(&stats.pdevs, &ar->debug.fw_stats.pdevs);
if (is_end)
ar->debug.fw_stats_done = true;
if (stats.extended)
ar->debug.fw_stats.extended = true;
is_started = !list_empty(&ar->debug.fw_stats.pdevs);
if (is_started && !is_end) {
if (num_peers >= ATH10K_MAX_NUM_PEER_IDS) {
/* Although this is unlikely impose a sane limit to
* prevent firmware from DoS-ing the host.
*/
ath10k_fw_stats_peers_free(&ar->debug.fw_stats.peers);
ath10k_fw_extd_stats_peers_free(&ar->debug.fw_stats.peers_extd);
ath10k_warn(ar, "dropping fw peer stats\n");
goto free;
}
if (num_vdevs >= BITS_PER_LONG) {
ath10k_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs);
ath10k_warn(ar, "dropping fw vdev stats\n");
goto free;
}
if (!list_empty(&stats.peers))
list_splice_tail_init(&stats.peers_extd,
&ar->debug.fw_stats.peers_extd);
list_splice_tail_init(&stats.peers, &ar->debug.fw_stats.peers);
list_splice_tail_init(&stats.vdevs, &ar->debug.fw_stats.vdevs);
}
complete(&ar->debug.fw_stats_complete);
free:
/* In some cases lists have been spliced and cleared. Free up
* resources if that is not the case.
*/
ath10k_fw_stats_pdevs_free(&stats.pdevs);
ath10k_fw_stats_vdevs_free(&stats.vdevs);
ath10k_fw_stats_peers_free(&stats.peers);
ath10k_fw_extd_stats_peers_free(&stats.peers_extd);
spin_unlock_bh(&ar->data_lock);
}
int ath10k_debug_fw_stats_request(struct ath10k *ar)
{
unsigned long timeout, time_left;
int ret;
lockdep_assert_held(&ar->conf_mutex);
timeout = jiffies + msecs_to_jiffies(1 * HZ);
ath10k_debug_fw_stats_reset(ar);
for (;;) {
if (time_after(jiffies, timeout))
return -ETIMEDOUT;
reinit_completion(&ar->debug.fw_stats_complete);
ret = ath10k_wmi_request_stats(ar, ar->fw_stats_req_mask);
if (ret) {
ath10k_warn(ar, "could not request stats (%d)\n", ret);
return ret;
}
time_left =
wait_for_completion_timeout(&ar->debug.fw_stats_complete,
1 * HZ);
if (!time_left)
return -ETIMEDOUT;
spin_lock_bh(&ar->data_lock);
if (ar->debug.fw_stats_done) {
spin_unlock_bh(&ar->data_lock);
break;
}
spin_unlock_bh(&ar->data_lock);
}
return 0;
}
static int ath10k_fw_stats_open(struct inode *inode, struct file *file)
{
struct ath10k *ar = inode->i_private;
void *buf = NULL;
int ret;
mutex_lock(&ar->conf_mutex);
if (ar->state != ATH10K_STATE_ON) {
ret = -ENETDOWN;
goto err_unlock;
}
buf = vmalloc(ATH10K_FW_STATS_BUF_SIZE);
if (!buf) {
ret = -ENOMEM;
goto err_unlock;
}
ret = ath10k_debug_fw_stats_request(ar);
if (ret) {
ath10k_warn(ar, "failed to request fw stats: %d\n", ret);
goto err_free;
}
ret = ath10k_wmi_fw_stats_fill(ar, &ar->debug.fw_stats, buf);
if (ret) {
ath10k_warn(ar, "failed to fill fw stats: %d\n", ret);
goto err_free;
}
file->private_data = buf;
mutex_unlock(&ar->conf_mutex);
return 0;
err_free:
vfree(buf);
err_unlock:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static int ath10k_fw_stats_release(struct inode *inode, struct file *file)
{
vfree(file->private_data);
return 0;
}
static ssize_t ath10k_fw_stats_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
const char *buf = file->private_data;
size_t len = strlen(buf);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static const struct file_operations fops_fw_stats = {
.open = ath10k_fw_stats_open,
.release = ath10k_fw_stats_release,
.read = ath10k_fw_stats_read,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static ssize_t ath10k_debug_fw_reset_stats_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
int ret;
size_t len = 0, buf_len = 500;
char *buf;
buf = kmalloc(buf_len, GFP_KERNEL);
if (!buf)
return -ENOMEM;
spin_lock_bh(&ar->data_lock);
len += scnprintf(buf + len, buf_len - len,
"fw_crash_counter\t\t%d\n", ar->stats.fw_crash_counter);
len += scnprintf(buf + len, buf_len - len,
"fw_warm_reset_counter\t\t%d\n",
ar->stats.fw_warm_reset_counter);
len += scnprintf(buf + len, buf_len - len,
"fw_cold_reset_counter\t\t%d\n",
ar->stats.fw_cold_reset_counter);
spin_unlock_bh(&ar->data_lock);
ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
kfree(buf);
return ret;
}
static const struct file_operations fops_fw_reset_stats = {
.open = simple_open,
.read = ath10k_debug_fw_reset_stats_read,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
/* This is a clean assert crash in firmware. */
static int ath10k_debug_fw_assert(struct ath10k *ar)
{
struct wmi_vdev_install_key_cmd *cmd;
struct sk_buff *skb;
skb = ath10k_wmi_alloc_skb(ar, sizeof(*cmd) + 16);
if (!skb)
return -ENOMEM;
cmd = (struct wmi_vdev_install_key_cmd *)skb->data;
memset(cmd, 0, sizeof(*cmd));
/* big enough number so that firmware asserts */
cmd->vdev_id = __cpu_to_le32(0x7ffe);
return ath10k_wmi_cmd_send(ar, skb,
ar->wmi.cmd->vdev_install_key_cmdid);
}
static ssize_t ath10k_read_simulate_fw_crash(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
const char buf[] =
"To simulate firmware crash write one of the keywords to this file:\n"
"`soft` - this will send WMI_FORCE_FW_HANG_ASSERT to firmware if FW supports that command.\n"
"`hard` - this will send to firmware command with illegal parameters causing firmware crash.\n"
"`assert` - this will send special illegal parameter to firmware to cause assert failure and crash.\n"
"`hw-restart` - this will simply queue hw restart without fw/hw actually crashing.\n";
return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
}
/* Simulate firmware crash:
* 'soft': Call wmi command causing firmware hang. This firmware hang is
* recoverable by warm firmware reset.
* 'hard': Force firmware crash by setting any vdev parameter for not allowed
* vdev id. This is hard firmware crash because it is recoverable only by cold
* firmware reset.
*/
static ssize_t ath10k_write_simulate_fw_crash(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
char buf[32] = {0};
ssize_t rc;
int ret;
/* filter partial writes and invalid commands */
if (*ppos != 0 || count >= sizeof(buf) || count == 0)
return -EINVAL;
rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
if (rc < 0)
return rc;
/* drop the possible '\n' from the end */
if (buf[*ppos - 1] == '\n')
buf[*ppos - 1] = '\0';
mutex_lock(&ar->conf_mutex);
if (ar->state != ATH10K_STATE_ON &&
ar->state != ATH10K_STATE_RESTARTED) {
ret = -ENETDOWN;
goto exit;
}
if (!strcmp(buf, "soft")) {
ath10k_info(ar, "simulating soft firmware crash\n");
ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0);
} else if (!strcmp(buf, "hard")) {
ath10k_info(ar, "simulating hard firmware crash\n");
/* 0x7fff is vdev id, and it is always out of range for all
* firmware variants in order to force a firmware crash.
*/
ret = ath10k_wmi_vdev_set_param(ar, 0x7fff,
ar->wmi.vdev_param->rts_threshold,
0);
} else if (!strcmp(buf, "assert")) {
ath10k_info(ar, "simulating firmware assert crash\n");
ret = ath10k_debug_fw_assert(ar);
} else if (!strcmp(buf, "hw-restart")) {
ath10k_info(ar, "user requested hw restart\n");
ath10k_core_start_recovery(ar);
ret = 0;
} else {
ret = -EINVAL;
goto exit;
}
if (ret) {
ath10k_warn(ar, "failed to simulate firmware crash: %d\n", ret);
goto exit;
}
ret = count;
exit:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static const struct file_operations fops_simulate_fw_crash = {
.read = ath10k_read_simulate_fw_crash,
.write = ath10k_write_simulate_fw_crash,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
size_t len;
char buf[50];
len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->bus_param.chip_id);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static const struct file_operations fops_chip_id = {
.read = ath10k_read_chip_id,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static ssize_t ath10k_reg_addr_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
u8 buf[32];
size_t len = 0;
u32 reg_addr;
mutex_lock(&ar->conf_mutex);
reg_addr = ar->debug.reg_addr;
mutex_unlock(&ar->conf_mutex);
len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", reg_addr);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t ath10k_reg_addr_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
u32 reg_addr;
int ret;
ret = kstrtou32_from_user(user_buf, count, 0, &reg_addr);
if (ret)
return ret;
if (!IS_ALIGNED(reg_addr, 4))
return -EFAULT;
mutex_lock(&ar->conf_mutex);
ar->debug.reg_addr = reg_addr;
mutex_unlock(&ar->conf_mutex);
return count;
}
static const struct file_operations fops_reg_addr = {
.read = ath10k_reg_addr_read,
.write = ath10k_reg_addr_write,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static ssize_t ath10k_reg_value_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
u8 buf[48];
size_t len;
u32 reg_addr, reg_val;
int ret;
mutex_lock(&ar->conf_mutex);
if (ar->state != ATH10K_STATE_ON &&
ar->state != ATH10K_STATE_UTF) {
ret = -ENETDOWN;
goto exit;
}
reg_addr = ar->debug.reg_addr;
reg_val = ath10k_hif_read32(ar, reg_addr);
len = scnprintf(buf, sizeof(buf), "0x%08x:0x%08x\n", reg_addr, reg_val);
ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
exit:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static ssize_t ath10k_reg_value_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
u32 reg_addr, reg_val;
int ret;
mutex_lock(&ar->conf_mutex);
if (ar->state != ATH10K_STATE_ON &&
ar->state != ATH10K_STATE_UTF) {
ret = -ENETDOWN;
goto exit;
}
reg_addr = ar->debug.reg_addr;
ret = kstrtou32_from_user(user_buf, count, 0, &reg_val);
if (ret)
goto exit;
ath10k_hif_write32(ar, reg_addr, reg_val);
ret = count;
exit:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static const struct file_operations fops_reg_value = {
.read = ath10k_reg_value_read,
.write = ath10k_reg_value_write,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static ssize_t ath10k_mem_value_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
u8 *buf;
int ret;
if (*ppos < 0)
return -EINVAL;
if (!count)
return 0;
mutex_lock(&ar->conf_mutex);
buf = vmalloc(count);
if (!buf) {
ret = -ENOMEM;
goto exit;
}
if (ar->state != ATH10K_STATE_ON &&
ar->state != ATH10K_STATE_UTF) {
ret = -ENETDOWN;
goto exit;
}
ret = ath10k_hif_diag_read(ar, *ppos, buf, count);
if (ret) {
ath10k_warn(ar, "failed to read address 0x%08x via diagnose window from debugfs: %d\n",
(u32)(*ppos), ret);
goto exit;
}
ret = copy_to_user(user_buf, buf, count);
if (ret) {
ret = -EFAULT;
goto exit;
}
count -= ret;
*ppos += count;
ret = count;
exit:
vfree(buf);
mutex_unlock(&ar->conf_mutex);
return ret;
}
static ssize_t ath10k_mem_value_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
u8 *buf;
int ret;
if (*ppos < 0)
return -EINVAL;
if (!count)
return 0;
mutex_lock(&ar->conf_mutex);
buf = vmalloc(count);
if (!buf) {
ret = -ENOMEM;
goto exit;
}
if (ar->state != ATH10K_STATE_ON &&
ar->state != ATH10K_STATE_UTF) {
ret = -ENETDOWN;
goto exit;
}
ret = copy_from_user(buf, user_buf, count);
if (ret) {
ret = -EFAULT;
goto exit;
}
ret = ath10k_hif_diag_write(ar, *ppos, buf, count);
if (ret) {
ath10k_warn(ar, "failed to write address 0x%08x via diagnose window from debugfs: %d\n",
(u32)(*ppos), ret);
goto exit;
}
*ppos += count;
ret = count;
exit:
vfree(buf);
mutex_unlock(&ar->conf_mutex);
return ret;
}
static const struct file_operations fops_mem_value = {
.read = ath10k_mem_value_read,
.write = ath10k_mem_value_write,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static int ath10k_debug_htt_stats_req(struct ath10k *ar)
{
u64 cookie;
int ret;
lockdep_assert_held(&ar->conf_mutex);
if (ar->debug.htt_stats_mask == 0)
/* htt stats are disabled */
return 0;
if (ar->state != ATH10K_STATE_ON)
return 0;
cookie = get_jiffies_64();
ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask,
ar->debug.reset_htt_stats, cookie);
if (ret) {
ath10k_warn(ar, "failed to send htt stats request: %d\n", ret);
return ret;
}
queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork,
msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL));
return 0;
}
static void ath10k_debug_htt_stats_dwork(struct work_struct *work)
{
struct ath10k *ar = container_of(work, struct ath10k,
debug.htt_stats_dwork.work);
mutex_lock(&ar->conf_mutex);
ath10k_debug_htt_stats_req(ar);
mutex_unlock(&ar->conf_mutex);
}
static ssize_t ath10k_read_htt_stats_mask(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
char buf[32];
size_t len;
len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t ath10k_write_htt_stats_mask(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
unsigned long mask;
int ret;
ret = kstrtoul_from_user(user_buf, count, 0, &mask);
if (ret)
return ret;
/* max 17 bit masks (for now) */
if (mask > HTT_STATS_BIT_MASK)
return -E2BIG;
mutex_lock(&ar->conf_mutex);
ar->debug.htt_stats_mask = mask;
ret = ath10k_debug_htt_stats_req(ar);
if (ret)
goto out;
ret = count;
out:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static const struct file_operations fops_htt_stats_mask = {
.read = ath10k_read_htt_stats_mask,
.write = ath10k_write_htt_stats_mask,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static ssize_t ath10k_read_htt_max_amsdu_ampdu(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
char buf[64];
u8 amsdu, ampdu;
size_t len;
mutex_lock(&ar->conf_mutex);
amsdu = ar->htt.max_num_amsdu;
ampdu = ar->htt.max_num_ampdu;
mutex_unlock(&ar->conf_mutex);
len = scnprintf(buf, sizeof(buf), "%u %u\n", amsdu, ampdu);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t ath10k_write_htt_max_amsdu_ampdu(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
int res;
char buf[64] = {0};
unsigned int amsdu, ampdu;
res = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos,
user_buf, count);
if (res <= 0)
return res;
res = sscanf(buf, "%u %u", &amsdu, &ampdu);
if (res != 2)
return -EINVAL;
mutex_lock(&ar->conf_mutex);
res = ath10k_htt_h2t_aggr_cfg_msg(&ar->htt, ampdu, amsdu);
if (res)
goto out;
res = count;
ar->htt.max_num_amsdu = amsdu;
ar->htt.max_num_ampdu = ampdu;
out:
mutex_unlock(&ar->conf_mutex);
return res;
}
static const struct file_operations fops_htt_max_amsdu_ampdu = {
.read = ath10k_read_htt_max_amsdu_ampdu,
.write = ath10k_write_htt_max_amsdu_ampdu,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static ssize_t ath10k_read_fw_dbglog(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
size_t len;
char buf[96];
len = scnprintf(buf, sizeof(buf), "0x%16llx %u\n",
ar->debug.fw_dbglog_mask, ar->debug.fw_dbglog_level);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t ath10k_write_fw_dbglog(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
int ret;
char buf[96] = {0};
unsigned int log_level;
u64 mask;
ret = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos,
user_buf, count);
if (ret <= 0)
return ret;
ret = sscanf(buf, "%llx %u", &mask, &log_level);
if (!ret)
return -EINVAL;
if (ret == 1)
/* default if user did not specify */
log_level = ATH10K_DBGLOG_LEVEL_WARN;
mutex_lock(&ar->conf_mutex);
ar->debug.fw_dbglog_mask = mask;
ar->debug.fw_dbglog_level = log_level;
if (ar->state == ATH10K_STATE_ON) {
ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
ar->debug.fw_dbglog_level);
if (ret) {
ath10k_warn(ar, "dbglog cfg failed from debugfs: %d\n",
ret);
goto exit;
}
}
ret = count;
exit:
mutex_unlock(&ar->conf_mutex);
return ret;
}
/* TODO: Would be nice to always support ethtool stats, would need to
* move the stats storage out of ath10k_debug, or always have ath10k_debug
* struct available..
*/
/* This generally corresponds to the debugfs fw_stats file */
static const char ath10k_gstrings_stats[][ETH_GSTRING_LEN] = {
"tx_pkts_nic",
"tx_bytes_nic",
"rx_pkts_nic",
"rx_bytes_nic",
"d_noise_floor",
"d_cycle_count",
"d_phy_error",
"d_rts_bad",
"d_rts_good",
"d_tx_power", /* in .5 dbM I think */
"d_rx_crc_err", /* fcs_bad */
"d_rx_crc_err_drop", /* frame with FCS error, dropped late in kernel */
"d_no_beacon",
"d_tx_mpdus_queued",
"d_tx_msdu_queued",
"d_tx_msdu_dropped",
"d_local_enqued",
"d_local_freed",
"d_tx_ppdu_hw_queued",
"d_tx_ppdu_reaped",
"d_tx_fifo_underrun",
"d_tx_ppdu_abort",
"d_tx_mpdu_requeued",
"d_tx_excessive_retries",
"d_tx_hw_rate",
"d_tx_dropped_sw_retries",
"d_tx_illegal_rate",
"d_tx_continuous_xretries",
"d_tx_timeout",
"d_tx_mpdu_txop_limit",
"d_pdev_resets",
"d_rx_mid_ppdu_route_change",
"d_rx_status",
"d_rx_extra_frags_ring0",
"d_rx_extra_frags_ring1",
"d_rx_extra_frags_ring2",
"d_rx_extra_frags_ring3",
"d_rx_msdu_htt",
"d_rx_mpdu_htt",
"d_rx_msdu_stack",
"d_rx_mpdu_stack",
"d_rx_phy_err",
"d_rx_phy_err_drops",
"d_rx_mpdu_errors", /* FCS, MIC, ENC */
"d_fw_crash_count",
"d_fw_warm_reset_count",
"d_fw_cold_reset_count",
};
#define ATH10K_SSTATS_LEN ARRAY_SIZE(ath10k_gstrings_stats)
void ath10k_debug_get_et_strings(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
u32 sset, u8 *data)
{
if (sset == ETH_SS_STATS)
memcpy(data, *ath10k_gstrings_stats,
sizeof(ath10k_gstrings_stats));
}
int ath10k_debug_get_et_sset_count(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, int sset)
{
if (sset == ETH_SS_STATS)
return ATH10K_SSTATS_LEN;
return 0;
}
void ath10k_debug_get_et_stats(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ethtool_stats *stats, u64 *data)
{
struct ath10k *ar = hw->priv;
static const struct ath10k_fw_stats_pdev zero_stats = {};
const struct ath10k_fw_stats_pdev *pdev_stats;
int i = 0, ret;
mutex_lock(&ar->conf_mutex);
if (ar->state == ATH10K_STATE_ON) {
ret = ath10k_debug_fw_stats_request(ar);
if (ret) {
/* just print a warning and try to use older results */
ath10k_warn(ar,
"failed to get fw stats for ethtool: %d\n",
ret);
}
}
pdev_stats = list_first_entry_or_null(&ar->debug.fw_stats.pdevs,
struct ath10k_fw_stats_pdev,
list);
if (!pdev_stats) {
/* no results available so just return zeroes */
pdev_stats = &zero_stats;
}
spin_lock_bh(&ar->data_lock);
data[i++] = pdev_stats->hw_reaped; /* ppdu reaped */
data[i++] = 0; /* tx bytes */
data[i++] = pdev_stats->htt_mpdus;
data[i++] = 0; /* rx bytes */
data[i++] = pdev_stats->ch_noise_floor;
data[i++] = pdev_stats->cycle_count;
data[i++] = pdev_stats->phy_err_count;
data[i++] = pdev_stats->rts_bad;
data[i++] = pdev_stats->rts_good;
data[i++] = pdev_stats->chan_tx_power;
data[i++] = pdev_stats->fcs_bad;
data[i++] = ar->stats.rx_crc_err_drop;
data[i++] = pdev_stats->no_beacons;
data[i++] = pdev_stats->mpdu_enqued;
data[i++] = pdev_stats->msdu_enqued;
data[i++] = pdev_stats->wmm_drop;
data[i++] = pdev_stats->local_enqued;
data[i++] = pdev_stats->local_freed;
data[i++] = pdev_stats->hw_queued;
data[i++] = pdev_stats->hw_reaped;
data[i++] = pdev_stats->underrun;
data[i++] = pdev_stats->tx_abort;
data[i++] = pdev_stats->mpdus_requeued;
data[i++] = pdev_stats->tx_ko;
data[i++] = pdev_stats->data_rc;
data[i++] = pdev_stats->sw_retry_failure;
data[i++] = pdev_stats->illgl_rate_phy_err;
data[i++] = pdev_stats->pdev_cont_xretry;
data[i++] = pdev_stats->pdev_tx_timeout;
data[i++] = pdev_stats->txop_ovf;
data[i++] = pdev_stats->pdev_resets;
data[i++] = pdev_stats->mid_ppdu_route_change;
data[i++] = pdev_stats->status_rcvd;
data[i++] = pdev_stats->r0_frags;
data[i++] = pdev_stats->r1_frags;
data[i++] = pdev_stats->r2_frags;
data[i++] = pdev_stats->r3_frags;
data[i++] = pdev_stats->htt_msdus;
data[i++] = pdev_stats->htt_mpdus;
data[i++] = pdev_stats->loc_msdus;
data[i++] = pdev_stats->loc_mpdus;
data[i++] = pdev_stats->phy_errs;
data[i++] = pdev_stats->phy_err_drop;
data[i++] = pdev_stats->mpdu_errs;
data[i++] = ar->stats.fw_crash_counter;
data[i++] = ar->stats.fw_warm_reset_counter;
data[i++] = ar->stats.fw_cold_reset_counter;
spin_unlock_bh(&ar->data_lock);
mutex_unlock(&ar->conf_mutex);
WARN_ON(i != ATH10K_SSTATS_LEN);
}
static const struct file_operations fops_fw_dbglog = {
.read = ath10k_read_fw_dbglog,
.write = ath10k_write_fw_dbglog,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static int ath10k_debug_cal_data_fetch(struct ath10k *ar)
{
u32 hi_addr;
__le32 addr;
int ret;
lockdep_assert_held(&ar->conf_mutex);
if (WARN_ON(ar->hw_params.cal_data_len > ATH10K_DEBUG_CAL_DATA_LEN))
return -EINVAL;
if (ar->hw_params.cal_data_len == 0)
return -EOPNOTSUPP;
hi_addr = host_interest_item_address(HI_ITEM(hi_board_data));
ret = ath10k_hif_diag_read(ar, hi_addr, &addr, sizeof(addr));
if (ret) {
ath10k_warn(ar, "failed to read hi_board_data address: %d\n",
ret);
return ret;
}
ret = ath10k_hif_diag_read(ar, le32_to_cpu(addr), ar->debug.cal_data,
ar->hw_params.cal_data_len);
if (ret) {
ath10k_warn(ar, "failed to read calibration data: %d\n", ret);
return ret;
}
return 0;
}
static int ath10k_debug_cal_data_open(struct inode *inode, struct file *file)
{
struct ath10k *ar = inode->i_private;
mutex_lock(&ar->conf_mutex);
if (ar->state == ATH10K_STATE_ON ||
ar->state == ATH10K_STATE_UTF) {
ath10k_debug_cal_data_fetch(ar);
}
file->private_data = ar;
mutex_unlock(&ar->conf_mutex);
return 0;
}
static ssize_t ath10k_debug_cal_data_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
mutex_lock(&ar->conf_mutex);
count = simple_read_from_buffer(user_buf, count, ppos,
ar->debug.cal_data,
ar->hw_params.cal_data_len);
mutex_unlock(&ar->conf_mutex);
return count;
}
static ssize_t ath10k_write_ani_enable(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
int ret;
u8 enable;
if (kstrtou8_from_user(user_buf, count, 0, &enable))
return -EINVAL;
mutex_lock(&ar->conf_mutex);
if (ar->ani_enabled == enable) {
ret = count;
goto exit;
}
ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->ani_enable,
enable);
if (ret) {
ath10k_warn(ar, "ani_enable failed from debugfs: %d\n", ret);
goto exit;
}
ar->ani_enabled = enable;
ret = count;
exit:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static ssize_t ath10k_read_ani_enable(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
size_t len;
char buf[32];
len = scnprintf(buf, sizeof(buf), "%d\n", ar->ani_enabled);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static const struct file_operations fops_ani_enable = {
.read = ath10k_read_ani_enable,
.write = ath10k_write_ani_enable,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static const struct file_operations fops_cal_data = {
.open = ath10k_debug_cal_data_open,
.read = ath10k_debug_cal_data_read,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static ssize_t ath10k_read_nf_cal_period(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
size_t len;
char buf[32];
len = scnprintf(buf, sizeof(buf), "%d\n", ar->debug.nf_cal_period);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t ath10k_write_nf_cal_period(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
unsigned long period;
int ret;
ret = kstrtoul_from_user(user_buf, count, 0, &period);
if (ret)
return ret;
if (period > WMI_PDEV_PARAM_CAL_PERIOD_MAX)
return -EINVAL;
/* there's no way to switch back to the firmware default */
if (period == 0)
return -EINVAL;
mutex_lock(&ar->conf_mutex);
ar->debug.nf_cal_period = period;
if (ar->state != ATH10K_STATE_ON) {
/* firmware is not running, nothing else to do */
ret = count;
goto exit;
}
ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->cal_period,
ar->debug.nf_cal_period);
if (ret) {
ath10k_warn(ar, "cal period cfg failed from debugfs: %d\n",
ret);
goto exit;
}
ret = count;
exit:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static const struct file_operations fops_nf_cal_period = {
.read = ath10k_read_nf_cal_period,
.write = ath10k_write_nf_cal_period,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
#define ATH10K_TPC_CONFIG_BUF_SIZE (1024 * 1024)
static int ath10k_debug_tpc_stats_request(struct ath10k *ar)
{
int ret;
unsigned long time_left;
lockdep_assert_held(&ar->conf_mutex);
reinit_completion(&ar->debug.tpc_complete);
ret = ath10k_wmi_pdev_get_tpc_config(ar, WMI_TPC_CONFIG_PARAM);
if (ret) {
ath10k_warn(ar, "failed to request tpc config: %d\n", ret);
return ret;
}
time_left = wait_for_completion_timeout(&ar->debug.tpc_complete,
1 * HZ);
if (time_left == 0)
return -ETIMEDOUT;
return 0;
}
void ath10k_debug_tpc_stats_process(struct ath10k *ar,
struct ath10k_tpc_stats *tpc_stats)
{
spin_lock_bh(&ar->data_lock);
kfree(ar->debug.tpc_stats);
ar->debug.tpc_stats = tpc_stats;
complete(&ar->debug.tpc_complete);
spin_unlock_bh(&ar->data_lock);
}
void
ath10k_debug_tpc_stats_final_process(struct ath10k *ar,
struct ath10k_tpc_stats_final *tpc_stats)
{
spin_lock_bh(&ar->data_lock);
kfree(ar->debug.tpc_stats_final);
ar->debug.tpc_stats_final = tpc_stats;
complete(&ar->debug.tpc_complete);
spin_unlock_bh(&ar->data_lock);
}
static void ath10k_tpc_stats_print(struct ath10k_tpc_stats *tpc_stats,
unsigned int j, char *buf, size_t *len)
{
int i;
size_t buf_len;
static const char table_str[][5] = { "CDD",
"STBC",
"TXBF" };
static const char pream_str[][6] = { "CCK",
"OFDM",
"HT20",
"HT40",
"VHT20",
"VHT40",
"VHT80",
"HTCUP" };
buf_len = ATH10K_TPC_CONFIG_BUF_SIZE;
*len += scnprintf(buf + *len, buf_len - *len,
"********************************\n");
*len += scnprintf(buf + *len, buf_len - *len,
"******************* %s POWER TABLE ****************\n",
table_str[j]);
*len += scnprintf(buf + *len, buf_len - *len,
"********************************\n");
*len += scnprintf(buf + *len, buf_len - *len,
"No. Preamble Rate_code ");
for (i = 0; i < tpc_stats->num_tx_chain; i++)
*len += scnprintf(buf + *len, buf_len - *len,
"tpc_value%d ", i);
*len += scnprintf(buf + *len, buf_len - *len, "\n");
for (i = 0; i < tpc_stats->rate_max; i++) {
*len += scnprintf(buf + *len, buf_len - *len,
"%8d %s 0x%2x %s\n", i,
pream_str[tpc_stats->tpc_table[j].pream_idx[i]],
tpc_stats->tpc_table[j].rate_code[i],
tpc_stats->tpc_table[j].tpc_value[i]);
}
*len += scnprintf(buf + *len, buf_len - *len,
"***********************************\n");
}
static void ath10k_tpc_stats_fill(struct ath10k *ar,
struct ath10k_tpc_stats *tpc_stats,
char *buf)
{
int j;
size_t len, buf_len;
len = 0;
buf_len = ATH10K_TPC_CONFIG_BUF_SIZE;
spin_lock_bh(&ar->data_lock);
if (!tpc_stats) {
ath10k_warn(ar, "failed to get tpc stats\n");
goto unlock;
}
len += scnprintf(buf + len, buf_len - len, "\n");
len += scnprintf(buf + len, buf_len - len,
"*************************************\n");
len += scnprintf(buf + len, buf_len - len,
"TPC config for channel %4d mode %d\n",
tpc_stats->chan_freq,
tpc_stats->phy_mode);
len += scnprintf(buf + len, buf_len - len,
"*************************************\n");
len += scnprintf(buf + len, buf_len - len,
"CTL = 0x%2x Reg. Domain = %2d\n",
tpc_stats->ctl,
tpc_stats->reg_domain);
len += scnprintf(buf + len, buf_len - len,
"Antenna Gain = %2d Reg. Max Antenna Gain = %2d\n",
tpc_stats->twice_antenna_gain,
tpc_stats->twice_antenna_reduction);
len += scnprintf(buf + len, buf_len - len,
"Power Limit = %2d Reg. Max Power = %2d\n",
tpc_stats->power_limit,
tpc_stats->twice_max_rd_power / 2);
len += scnprintf(buf + len, buf_len - len,
"Num tx chains = %2d Num supported rates = %2d\n",
tpc_stats->num_tx_chain,
tpc_stats->rate_max);
for (j = 0; j < WMI_TPC_FLAG; j++) {
switch (j) {
case WMI_TPC_TABLE_TYPE_CDD:
if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
len += scnprintf(buf + len, buf_len - len,
"CDD not supported\n");
break;
}
ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
break;
case WMI_TPC_TABLE_TYPE_STBC:
if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
len += scnprintf(buf + len, buf_len - len,
"STBC not supported\n");
break;
}
ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
break;
case WMI_TPC_TABLE_TYPE_TXBF:
if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
len += scnprintf(buf + len, buf_len - len,
"TXBF not supported\n***************************\n");
break;
}
ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
break;
default:
len += scnprintf(buf + len, buf_len - len,
"Invalid Type\n");
break;
}
}
unlock:
spin_unlock_bh(&ar->data_lock);
if (len >= buf_len)
buf[len - 1] = 0;
else
buf[len] = 0;
}
static int ath10k_tpc_stats_open(struct inode *inode, struct file *file)
{
struct ath10k *ar = inode->i_private;
void *buf = NULL;
int ret;
mutex_lock(&ar->conf_mutex);
if (ar->state != ATH10K_STATE_ON) {
ret = -ENETDOWN;
goto err_unlock;
}
buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE);
if (!buf) {
ret = -ENOMEM;
goto err_unlock;
}
ret = ath10k_debug_tpc_stats_request(ar);
if (ret) {
ath10k_warn(ar, "failed to request tpc config stats: %d\n",
ret);
goto err_free;
}
ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf);
file->private_data = buf;
mutex_unlock(&ar->conf_mutex);
return 0;
err_free:
vfree(buf);
err_unlock:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static int ath10k_tpc_stats_release(struct inode *inode, struct file *file)
{
vfree(file->private_data);
return 0;
}
static ssize_t ath10k_tpc_stats_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
const char *buf = file->private_data;
size_t len = strlen(buf);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static const struct file_operations fops_tpc_stats = {
.open = ath10k_tpc_stats_open,
.release = ath10k_tpc_stats_release,
.read = ath10k_tpc_stats_read,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
int ath10k_debug_start(struct ath10k *ar)
{
int ret;
lockdep_assert_held(&ar->conf_mutex);
ret = ath10k_debug_htt_stats_req(ar);
if (ret)
/* continue normally anyway, this isn't serious */
ath10k_warn(ar, "failed to start htt stats workqueue: %d\n",
ret);
if (ar->debug.fw_dbglog_mask) {
ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
ATH10K_DBGLOG_LEVEL_WARN);
if (ret)
/* not serious */
ath10k_warn(ar, "failed to enable dbglog during start: %d",
ret);
}
if (ar->pktlog_filter) {
ret = ath10k_wmi_pdev_pktlog_enable(ar,
ar->pktlog_filter);
if (ret)
/* not serious */
ath10k_warn(ar,
"failed to enable pktlog filter %x: %d\n",
ar->pktlog_filter, ret);
} else {
ret = ath10k_wmi_pdev_pktlog_disable(ar);
if (ret)
/* not serious */
ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
}
if (ar->debug.nf_cal_period &&
!test_bit(ATH10K_FW_FEATURE_NON_BMI,
ar->normal_mode_fw.fw_file.fw_features)) {
ret = ath10k_wmi_pdev_set_param(ar,
ar->wmi.pdev_param->cal_period,
ar->debug.nf_cal_period);
if (ret)
/* not serious */
ath10k_warn(ar, "cal period cfg failed from debug start: %d\n",
ret);
}
return ret;
}
void ath10k_debug_stop(struct ath10k *ar)
{
lockdep_assert_held(&ar->conf_mutex);
if (!test_bit(ATH10K_FW_FEATURE_NON_BMI,
ar->normal_mode_fw.fw_file.fw_features))
ath10k_debug_cal_data_fetch(ar);
/* Must not use _sync to avoid deadlock, we do that in
* ath10k_debug_destroy(). The check for htt_stats_mask is to avoid
* warning from del_timer().
*/
if (ar->debug.htt_stats_mask != 0)
cancel_delayed_work(&ar->debug.htt_stats_dwork);
ath10k_wmi_pdev_pktlog_disable(ar);
}
static ssize_t ath10k_write_simulate_radar(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
struct ath10k_vif *arvif;
/* Just check for the first vif alone, as all the vifs will be
* sharing the same channel and if the channel is disabled, all the
* vifs will share the same 'is_started' state.
*/
arvif = list_first_entry(&ar->arvifs, typeof(*arvif), list);
if (!arvif->is_started)
return -EINVAL;
ieee80211_radar_detected(ar->hw);
return count;
}
static const struct file_operations fops_simulate_radar = {
.write = ath10k_write_simulate_radar,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
#define ATH10K_DFS_STAT(s, p) (\
len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
ar->debug.dfs_stats.p))
#define ATH10K_DFS_POOL_STAT(s, p) (\
len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
ar->debug.dfs_pool_stats.p))
static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
int retval = 0, len = 0;
const int size = 8000;
struct ath10k *ar = file->private_data;
char *buf;
buf = kzalloc(size, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
if (!ar->dfs_detector) {
len += scnprintf(buf + len, size - len, "DFS not enabled\n");
goto exit;
}
ar->debug.dfs_pool_stats =
ar->dfs_detector->get_stats(ar->dfs_detector);
len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n");
ATH10K_DFS_STAT("reported phy errors", phy_errors);
ATH10K_DFS_STAT("pulse events reported", pulses_total);
ATH10K_DFS_STAT("DFS pulses detected", pulses_detected);
ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded);
ATH10K_DFS_STAT("Radars detected", radar_detected);
len += scnprintf(buf + len, size - len, "Global Pool statistics:\n");
ATH10K_DFS_POOL_STAT("Pool references", pool_reference);
ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated);
ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error);
ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used);
ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated);
ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error);
ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used);
exit:
if (len > size)
len = size;
retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
kfree(buf);
return retval;
}
static const struct file_operations fops_dfs_stats = {
.read = ath10k_read_dfs_stats,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static ssize_t ath10k_write_pktlog_filter(struct file *file,
const char __user *ubuf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
u32 filter;
int ret;
if (kstrtouint_from_user(ubuf, count, 0, &filter))
return -EINVAL;
mutex_lock(&ar->conf_mutex);
if (ar->state != ATH10K_STATE_ON) {
ar->pktlog_filter = filter;
ret = count;
goto out;
}
if (filter == ar->pktlog_filter) {
ret = count;
goto out;
}
if (filter) {
ret = ath10k_wmi_pdev_pktlog_enable(ar, filter);
if (ret) {
ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n",
ar->pktlog_filter, ret);
goto out;
}
} else {
ret = ath10k_wmi_pdev_pktlog_disable(ar);
if (ret) {
ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
goto out;
}
}
ar->pktlog_filter = filter;
ret = count;
out:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static ssize_t ath10k_read_pktlog_filter(struct file *file, char __user *ubuf,
size_t count, loff_t *ppos)
{
char buf[32];
struct ath10k *ar = file->private_data;
int len = 0;
mutex_lock(&ar->conf_mutex);
len = scnprintf(buf, sizeof(buf) - len, "%08x\n",
ar->pktlog_filter);
mutex_unlock(&ar->conf_mutex);
return simple_read_from_buffer(ubuf, count, ppos, buf, len);
}
static const struct file_operations fops_pktlog_filter = {
.read = ath10k_read_pktlog_filter,
.write = ath10k_write_pktlog_filter,
.open = simple_open
};
static ssize_t ath10k_write_quiet_period(struct file *file,
const char __user *ubuf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
u32 period;
if (kstrtouint_from_user(ubuf, count, 0, &period))
return -EINVAL;
if (period < ATH10K_QUIET_PERIOD_MIN) {
ath10k_warn(ar, "Quiet period %u can not be lesser than 25ms\n",
period);
return -EINVAL;
}
mutex_lock(&ar->conf_mutex);
ar->thermal.quiet_period = period;
ath10k_thermal_set_throttling(ar);
mutex_unlock(&ar->conf_mutex);
return count;
}
static ssize_t ath10k_read_quiet_period(struct file *file, char __user *ubuf,
size_t count, loff_t *ppos)
{
char buf[32];
struct ath10k *ar = file->private_data;
int len = 0;
mutex_lock(&ar->conf_mutex);
len = scnprintf(buf, sizeof(buf) - len, "%d\n",
ar->thermal.quiet_period);
mutex_unlock(&ar->conf_mutex);
return simple_read_from_buffer(ubuf, count, ppos, buf, len);
}
static const struct file_operations fops_quiet_period = {
.read = ath10k_read_quiet_period,
.write = ath10k_write_quiet_period,
.open = simple_open
};
static ssize_t ath10k_write_btcoex(struct file *file,
const char __user *ubuf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
char buf[32];
size_t buf_size;
int ret;
bool val;
u32 pdev_param;
buf_size = min(count, (sizeof(buf) - 1));
if (copy_from_user(buf, ubuf, buf_size))
return -EFAULT;
buf[buf_size] = '\0';
if (strtobool(buf, &val) != 0)
return -EINVAL;
if (!ar->coex_support)
return -EOPNOTSUPP;
mutex_lock(&ar->conf_mutex);
if (ar->state != ATH10K_STATE_ON &&
ar->state != ATH10K_STATE_RESTARTED) {
ret = -ENETDOWN;
goto exit;
}
if (!(test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags) ^ val)) {
ret = count;
goto exit;
}
pdev_param = ar->wmi.pdev_param->enable_btcoex;
if (test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM,
ar->running_fw->fw_file.fw_features)) {
ret = ath10k_wmi_pdev_set_param(ar, pdev_param, val);
if (ret) {
ath10k_warn(ar, "failed to enable btcoex: %d\n", ret);
ret = count;
goto exit;
}
} else {
ath10k_info(ar, "restarting firmware due to btcoex change");
ath10k_core_start_recovery(ar);
}
if (val)
set_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
else
clear_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
ret = count;
exit:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static ssize_t ath10k_read_btcoex(struct file *file, char __user *ubuf,
size_t count, loff_t *ppos)
{
char buf[32];
struct ath10k *ar = file->private_data;
int len = 0;
mutex_lock(&ar->conf_mutex);
len = scnprintf(buf, sizeof(buf) - len, "%d\n",
test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags));
mutex_unlock(&ar->conf_mutex);
return simple_read_from_buffer(ubuf, count, ppos, buf, len);
}
static const struct file_operations fops_btcoex = {
.read = ath10k_read_btcoex,
.write = ath10k_write_btcoex,
.open = simple_open
};
static ssize_t ath10k_write_enable_extd_tx_stats(struct file *file,
const char __user *ubuf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
u32 filter;
int ret;
if (kstrtouint_from_user(ubuf, count, 0, &filter))
return -EINVAL;
mutex_lock(&ar->conf_mutex);
if (ar->state != ATH10K_STATE_ON) {
ar->debug.enable_extd_tx_stats = filter;
ret = count;
goto out;
}
if (filter == ar->debug.enable_extd_tx_stats) {
ret = count;
goto out;
}
ar->debug.enable_extd_tx_stats = filter;
ret = count;
out:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static ssize_t ath10k_read_enable_extd_tx_stats(struct file *file,
char __user *ubuf,
size_t count, loff_t *ppos)
{
char buf[32];
struct ath10k *ar = file->private_data;
int len = 0;
mutex_lock(&ar->conf_mutex);
len = scnprintf(buf, sizeof(buf) - len, "%08x\n",
ar->debug.enable_extd_tx_stats);
mutex_unlock(&ar->conf_mutex);
return simple_read_from_buffer(ubuf, count, ppos, buf, len);
}
static const struct file_operations fops_enable_extd_tx_stats = {
.read = ath10k_read_enable_extd_tx_stats,
.write = ath10k_write_enable_extd_tx_stats,
.open = simple_open
};
static ssize_t ath10k_write_peer_stats(struct file *file,
const char __user *ubuf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
char buf[32];
size_t buf_size;
int ret;
bool val;
buf_size = min(count, (sizeof(buf) - 1));
if (copy_from_user(buf, ubuf, buf_size))
return -EFAULT;
buf[buf_size] = '\0';
if (strtobool(buf, &val) != 0)
return -EINVAL;
mutex_lock(&ar->conf_mutex);
if (ar->state != ATH10K_STATE_ON &&
ar->state != ATH10K_STATE_RESTARTED) {
ret = -ENETDOWN;
goto exit;
}
if (!(test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags) ^ val)) {
ret = count;
goto exit;
}
if (val)
set_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags);
else
clear_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags);
ath10k_info(ar, "restarting firmware due to Peer stats change");
ath10k_core_start_recovery(ar);
ret = count;
exit:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static ssize_t ath10k_read_peer_stats(struct file *file, char __user *ubuf,
size_t count, loff_t *ppos)
{
char buf[32];
struct ath10k *ar = file->private_data;
int len = 0;
mutex_lock(&ar->conf_mutex);
len = scnprintf(buf, sizeof(buf) - len, "%d\n",
test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags));
mutex_unlock(&ar->conf_mutex);
return simple_read_from_buffer(ubuf, count, ppos, buf, len);
}
static const struct file_operations fops_peer_stats = {
.read = ath10k_read_peer_stats,
.write = ath10k_write_peer_stats,
.open = simple_open
};
static ssize_t ath10k_debug_fw_checksums_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
size_t len = 0, buf_len = 4096;
ssize_t ret_cnt;
char *buf;
buf = kzalloc(buf_len, GFP_KERNEL);
if (!buf)
return -ENOMEM;
mutex_lock(&ar->conf_mutex);
len += scnprintf(buf + len, buf_len - len,
"firmware-N.bin\t\t%08x\n",
crc32_le(0, ar->normal_mode_fw.fw_file.firmware->data,
ar->normal_mode_fw.fw_file.firmware->size));
len += scnprintf(buf + len, buf_len - len,
"athwlan\t\t\t%08x\n",
crc32_le(0, ar->normal_mode_fw.fw_file.firmware_data,
ar->normal_mode_fw.fw_file.firmware_len));
len += scnprintf(buf + len, buf_len - len,
"otp\t\t\t%08x\n",
crc32_le(0, ar->normal_mode_fw.fw_file.otp_data,
ar->normal_mode_fw.fw_file.otp_len));
len += scnprintf(buf + len, buf_len - len,
"codeswap\t\t%08x\n",
crc32_le(0, ar->normal_mode_fw.fw_file.codeswap_data,
ar->normal_mode_fw.fw_file.codeswap_len));
len += scnprintf(buf + len, buf_len - len,
"board-N.bin\t\t%08x\n",
crc32_le(0, ar->normal_mode_fw.board->data,
ar->normal_mode_fw.board->size));
len += scnprintf(buf + len, buf_len - len,
"board\t\t\t%08x\n",
crc32_le(0, ar->normal_mode_fw.board_data,
ar->normal_mode_fw.board_len));
ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
mutex_unlock(&ar->conf_mutex);
kfree(buf);
return ret_cnt;
}
static const struct file_operations fops_fw_checksums = {
.read = ath10k_debug_fw_checksums_read,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static ssize_t ath10k_sta_tid_stats_mask_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
char buf[32];
size_t len;
len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->sta_tid_stats_mask);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t ath10k_sta_tid_stats_mask_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
char buf[32];
ssize_t len;
u32 mask;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
if (kstrtoint(buf, 0, &mask))
return -EINVAL;
ar->sta_tid_stats_mask = mask;
return len;
}
static const struct file_operations fops_sta_tid_stats_mask = {
.read = ath10k_sta_tid_stats_mask_read,
.write = ath10k_sta_tid_stats_mask_write,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static int ath10k_debug_tpc_stats_final_request(struct ath10k *ar)
{
int ret;
unsigned long time_left;
lockdep_assert_held(&ar->conf_mutex);
reinit_completion(&ar->debug.tpc_complete);
ret = ath10k_wmi_pdev_get_tpc_table_cmdid(ar, WMI_TPC_CONFIG_PARAM);
if (ret) {
ath10k_warn(ar, "failed to request tpc table cmdid: %d\n", ret);
return ret;
}
time_left = wait_for_completion_timeout(&ar->debug.tpc_complete,
1 * HZ);
if (time_left == 0)
return -ETIMEDOUT;
return 0;
}
static int ath10k_tpc_stats_final_open(struct inode *inode, struct file *file)
{
struct ath10k *ar = inode->i_private;
void *buf;
int ret;
mutex_lock(&ar->conf_mutex);
if (ar->state != ATH10K_STATE_ON) {
ret = -ENETDOWN;
goto err_unlock;
}
buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE);
if (!buf) {
ret = -ENOMEM;
goto err_unlock;
}
ret = ath10k_debug_tpc_stats_final_request(ar);
if (ret) {
ath10k_warn(ar, "failed to request tpc stats final: %d\n",
ret);
goto err_free;
}
ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf);
file->private_data = buf;
mutex_unlock(&ar->conf_mutex);
return 0;
err_free:
vfree(buf);
err_unlock:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static int ath10k_tpc_stats_final_release(struct inode *inode,
struct file *file)
{
vfree(file->private_data);
return 0;
}
static ssize_t ath10k_tpc_stats_final_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
const char *buf = file->private_data;
unsigned int len = strlen(buf);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static const struct file_operations fops_tpc_stats_final = {
.open = ath10k_tpc_stats_final_open,
.release = ath10k_tpc_stats_final_release,
.read = ath10k_tpc_stats_final_read,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static ssize_t ath10k_write_warm_hw_reset(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
int ret;
bool val;
if (kstrtobool_from_user(user_buf, count, &val))
return -EFAULT;
if (!val)
return -EINVAL;
mutex_lock(&ar->conf_mutex);
if (ar->state != ATH10K_STATE_ON) {
ret = -ENETDOWN;
goto exit;
}
ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->pdev_reset,
WMI_RST_MODE_WARM_RESET);
if (ret) {
ath10k_warn(ar, "failed to enable warm hw reset: %d\n", ret);
goto exit;
}
ret = count;
exit:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static const struct file_operations fops_warm_hw_reset = {
.write = ath10k_write_warm_hw_reset,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static void ath10k_peer_ps_state_disable(void *data,
struct ieee80211_sta *sta)
{
struct ath10k *ar = data;
struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
spin_lock_bh(&ar->data_lock);
arsta->peer_ps_state = WMI_PEER_PS_STATE_DISABLED;
spin_unlock_bh(&ar->data_lock);
}
static ssize_t ath10k_write_ps_state_enable(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
int ret;
u32 param;
u8 ps_state_enable;
if (kstrtou8_from_user(user_buf, count, 0, &ps_state_enable))
return -EINVAL;
if (ps_state_enable > 1)
return -EINVAL;
mutex_lock(&ar->conf_mutex);
if (ar->ps_state_enable == ps_state_enable) {
ret = count;
goto exit;
}
param = ar->wmi.pdev_param->peer_sta_ps_statechg_enable;
ret = ath10k_wmi_pdev_set_param(ar, param, ps_state_enable);
if (ret) {
ath10k_warn(ar, "failed to enable ps_state_enable: %d\n",
ret);
goto exit;
}
ar->ps_state_enable = ps_state_enable;
if (!ar->ps_state_enable)
ieee80211_iterate_stations_atomic(ar->hw,
ath10k_peer_ps_state_disable,
ar);
ret = count;
exit:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static ssize_t ath10k_read_ps_state_enable(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
int len = 0;
char buf[32];
mutex_lock(&ar->conf_mutex);
len = scnprintf(buf, sizeof(buf) - len, "%d\n",
ar->ps_state_enable);
mutex_unlock(&ar->conf_mutex);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static const struct file_operations fops_ps_state_enable = {
.read = ath10k_read_ps_state_enable,
.write = ath10k_write_ps_state_enable,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static ssize_t ath10k_write_reset_htt_stats(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
unsigned long reset;
int ret;
ret = kstrtoul_from_user(user_buf, count, 0, &reset);
if (ret)
return ret;
if (reset == 0 || reset > 0x1ffff)
return -EINVAL;
mutex_lock(&ar->conf_mutex);
ar->debug.reset_htt_stats = reset;
ret = ath10k_debug_htt_stats_req(ar);
if (ret)
goto out;
ar->debug.reset_htt_stats = 0;
ret = count;
out:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static const struct file_operations fops_reset_htt_stats = {
.write = ath10k_write_reset_htt_stats,
.owner = THIS_MODULE,
.open = simple_open,
.llseek = default_llseek,
};
int ath10k_debug_create(struct ath10k *ar)
{
ar->debug.cal_data = vzalloc(ATH10K_DEBUG_CAL_DATA_LEN);
if (!ar->debug.cal_data)
return -ENOMEM;
INIT_LIST_HEAD(&ar->debug.fw_stats.pdevs);
INIT_LIST_HEAD(&ar->debug.fw_stats.vdevs);
INIT_LIST_HEAD(&ar->debug.fw_stats.peers);
INIT_LIST_HEAD(&ar->debug.fw_stats.peers_extd);
return 0;
}
void ath10k_debug_destroy(struct ath10k *ar)
{
vfree(ar->debug.cal_data);
ar->debug.cal_data = NULL;
ath10k_debug_fw_stats_reset(ar);
kfree(ar->debug.tpc_stats);
kfree(ar->debug.tpc_stats_final);
}
int ath10k_debug_register(struct ath10k *ar)
{
ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
ar->hw->wiphy->debugfsdir);
if (IS_ERR_OR_NULL(ar->debug.debugfs_phy)) {
if (IS_ERR(ar->debug.debugfs_phy))
return PTR_ERR(ar->debug.debugfs_phy);
return -ENOMEM;
}
INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
ath10k_debug_htt_stats_dwork);
init_completion(&ar->debug.tpc_complete);
init_completion(&ar->debug.fw_stats_complete);
debugfs_create_file("fw_stats", 0400, ar->debug.debugfs_phy, ar,
&fops_fw_stats);
debugfs_create_file("fw_reset_stats", 0400, ar->debug.debugfs_phy, ar,
&fops_fw_reset_stats);
debugfs_create_file("wmi_services", 0400, ar->debug.debugfs_phy, ar,
&fops_wmi_services);
debugfs_create_file("simulate_fw_crash", 0600, ar->debug.debugfs_phy, ar,
&fops_simulate_fw_crash);
debugfs_create_file("reg_addr", 0600, ar->debug.debugfs_phy, ar,
&fops_reg_addr);
debugfs_create_file("reg_value", 0600, ar->debug.debugfs_phy, ar,
&fops_reg_value);
debugfs_create_file("mem_value", 0600, ar->debug.debugfs_phy, ar,
&fops_mem_value);
debugfs_create_file("chip_id", 0400, ar->debug.debugfs_phy, ar,
&fops_chip_id);
debugfs_create_file("htt_stats_mask", 0600, ar->debug.debugfs_phy, ar,
&fops_htt_stats_mask);
debugfs_create_file("htt_max_amsdu_ampdu", 0600, ar->debug.debugfs_phy, ar,
&fops_htt_max_amsdu_ampdu);
debugfs_create_file("fw_dbglog", 0600, ar->debug.debugfs_phy, ar,
&fops_fw_dbglog);
if (!test_bit(ATH10K_FW_FEATURE_NON_BMI,
ar->normal_mode_fw.fw_file.fw_features)) {
debugfs_create_file("cal_data", 0400, ar->debug.debugfs_phy, ar,
&fops_cal_data);
debugfs_create_file("nf_cal_period", 0600, ar->debug.debugfs_phy, ar,
&fops_nf_cal_period);
}
debugfs_create_file("ani_enable", 0600, ar->debug.debugfs_phy, ar,
&fops_ani_enable);
if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED)) {
debugfs_create_file("dfs_simulate_radar", 0200, ar->debug.debugfs_phy,
ar, &fops_simulate_radar);
debugfs_create_bool("dfs_block_radar_events", 0200,
ar->debug.debugfs_phy,
&ar->dfs_block_radar_events);
debugfs_create_file("dfs_stats", 0400, ar->debug.debugfs_phy, ar,
&fops_dfs_stats);
}
debugfs_create_file("pktlog_filter", 0644, ar->debug.debugfs_phy, ar,
&fops_pktlog_filter);
if (test_bit(WMI_SERVICE_THERM_THROT, ar->wmi.svc_map))
debugfs_create_file("quiet_period", 0644, ar->debug.debugfs_phy, ar,
&fops_quiet_period);
debugfs_create_file("tpc_stats", 0400, ar->debug.debugfs_phy, ar,
&fops_tpc_stats);
if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map))
debugfs_create_file("btcoex", 0644, ar->debug.debugfs_phy, ar,
&fops_btcoex);
if (test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map)) {
debugfs_create_file("peer_stats", 0644, ar->debug.debugfs_phy, ar,
&fops_peer_stats);
debugfs_create_file("enable_extd_tx_stats", 0644,
ar->debug.debugfs_phy, ar,
&fops_enable_extd_tx_stats);
}
debugfs_create_file("fw_checksums", 0400, ar->debug.debugfs_phy, ar,
&fops_fw_checksums);
if (IS_ENABLED(CONFIG_MAC80211_DEBUGFS))
debugfs_create_file("sta_tid_stats_mask", 0600,
ar->debug.debugfs_phy,
ar, &fops_sta_tid_stats_mask);
if (test_bit(WMI_SERVICE_TPC_STATS_FINAL, ar->wmi.svc_map))
debugfs_create_file("tpc_stats_final", 0400,
ar->debug.debugfs_phy, ar,
&fops_tpc_stats_final);
if (test_bit(WMI_SERVICE_RESET_CHIP, ar->wmi.svc_map))
debugfs_create_file("warm_hw_reset", 0600,
ar->debug.debugfs_phy, ar,
&fops_warm_hw_reset);
debugfs_create_file("ps_state_enable", 0600, ar->debug.debugfs_phy, ar,
&fops_ps_state_enable);
debugfs_create_file("reset_htt_stats", 0200, ar->debug.debugfs_phy, ar,
&fops_reset_htt_stats);
return 0;
}
void ath10k_debug_unregister(struct ath10k *ar)
{
cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
}
#endif /* CONFIG_ATH10K_DEBUGFS */
#ifdef CONFIG_ATH10K_DEBUG
void __ath10k_dbg(struct ath10k *ar, enum ath10k_debug_mask mask,
const char *fmt, ...)
{
struct va_format vaf;
va_list args;
va_start(args, fmt);
vaf.fmt = fmt;
vaf.va = &args;
if (ath10k_debug_mask & mask)
dev_printk(KERN_DEBUG, ar->dev, "%pV", &vaf);
trace_ath10k_log_dbg(ar, mask, &vaf);
va_end(args);
}
EXPORT_SYMBOL(__ath10k_dbg);
void ath10k_dbg_dump(struct ath10k *ar,
enum ath10k_debug_mask mask,
const char *msg, const char *prefix,
const void *buf, size_t len)
{
char linebuf[256];
size_t linebuflen;
const void *ptr;
if (ath10k_debug_mask & mask) {
if (msg)
__ath10k_dbg(ar, mask, "%s\n", msg);
for (ptr = buf; (ptr - buf) < len; ptr += 16) {
linebuflen = 0;
linebuflen += scnprintf(linebuf + linebuflen,
sizeof(linebuf) - linebuflen,
"%s%08x: ",
(prefix ? prefix : ""),
(unsigned int)(ptr - buf));
hex_dump_to_buffer(ptr, len - (ptr - buf), 16, 1,
linebuf + linebuflen,
sizeof(linebuf) - linebuflen, true);
dev_printk(KERN_DEBUG, ar->dev, "%s\n", linebuf);
}
}
/* tracing code doesn't like null strings :/ */
trace_ath10k_log_dbg_dump(ar, msg ? msg : "", prefix ? prefix : "",
buf, len);
}
EXPORT_SYMBOL(ath10k_dbg_dump);
#endif /* CONFIG_ATH10K_DEBUG */