/*
* Atheros CARL9170 driver
*
* debug(fs) probing
*
* Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
* Copyright 2009, 2010, Christian Lamparter <chunkeey@googlemail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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; see the file COPYING. If not, see
* http://www.gnu.org/licenses/.
*
* This file incorporates work covered by the following copyright and
* permission notice:
* Copyright (c) 2008-2009 Atheros Communications, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/seq_file.h>
#include <linux/vmalloc.h>
#include "carl9170.h"
#include "cmd.h"
#define ADD(buf, off, max, fmt, args...) \
off += snprintf(&buf[off], max - off, fmt, ##args);
static int carl9170_debugfs_open(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return 0;
}
struct carl9170_debugfs_fops {
unsigned int read_bufsize;
mode_t attr;
char *(*read)(struct ar9170 *ar, char *buf, size_t bufsize,
ssize_t *len);
ssize_t (*write)(struct ar9170 *aru, const char *buf, size_t size);
const struct file_operations fops;
enum carl9170_device_state req_dev_state;
};
static ssize_t carl9170_debugfs_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
struct carl9170_debugfs_fops *dfops;
struct ar9170 *ar;
char *buf = NULL, *res_buf = NULL;
ssize_t ret = 0;
int err = 0;
if (!count)
return 0;
ar = file->private_data;
if (!ar)
return -ENODEV;
dfops = container_of(file->f_op, struct carl9170_debugfs_fops, fops);
if (!dfops->read)
return -ENOSYS;
if (dfops->read_bufsize) {
buf = vmalloc(dfops->read_bufsize);
if (!buf)
return -ENOMEM;
}
mutex_lock(&ar->mutex);
if (!CHK_DEV_STATE(ar, dfops->req_dev_state)) {
err = -ENODEV;
res_buf = buf;
goto out_free;
}
res_buf = dfops->read(ar, buf, dfops->read_bufsize, &ret);
if (ret > 0)
err = simple_read_from_buffer(userbuf, count, ppos,
res_buf, ret);
else
err = ret;
WARN_ON_ONCE(dfops->read_bufsize && (res_buf != buf));
out_free:
vfree(res_buf);
mutex_unlock(&ar->mutex);
return err;
}
static ssize_t carl9170_debugfs_write(struct file *file,
const char __user *userbuf, size_t count, loff_t *ppos)
{
struct carl9170_debugfs_fops *dfops;
struct ar9170 *ar;
char *buf = NULL;
int err = 0;
if (!count)
return 0;
if (count > PAGE_SIZE)
return -E2BIG;
ar = file->private_data;
if (!ar)
return -ENODEV;
dfops = container_of(file->f_op, struct carl9170_debugfs_fops, fops);
if (!dfops->write)
return -ENOSYS;
buf = vmalloc(count);
if (!buf)
return -ENOMEM;
if (copy_from_user(buf, userbuf, count)) {
err = -EFAULT;
goto out_free;
}
if (mutex_trylock(&ar->mutex) == 0) {
err = -EAGAIN;
goto out_free;
}
if (!CHK_DEV_STATE(ar, dfops->req_dev_state)) {
err = -ENODEV;
goto out_unlock;
}
err = dfops->write(ar, buf, count);
if (err)
goto out_unlock;
out_unlock:
mutex_unlock(&ar->mutex);
out_free:
vfree(buf);
return err;
}
#define __DEBUGFS_DECLARE_FILE(name, _read, _write, _read_bufsize, \
_attr, _dstate) \
static const struct carl9170_debugfs_fops carl_debugfs_##name ##_ops = {\
.read_bufsize = _read_bufsize, \
.read = _read, \
.write = _write, \
.attr = _attr, \
.req_dev_state = _dstate, \
.fops = { \
.open = carl9170_debugfs_open, \
.read = carl9170_debugfs_read, \
.write = carl9170_debugfs_write, \
.owner = THIS_MODULE \
}, \
}
#define DEBUGFS_DECLARE_FILE(name, _read, _write, _read_bufsize, _attr) \
__DEBUGFS_DECLARE_FILE(name, _read, _write, _read_bufsize, \
_attr, CARL9170_STARTED) \
#define DEBUGFS_DECLARE_RO_FILE(name, _read_bufsize) \
DEBUGFS_DECLARE_FILE(name, carl9170_debugfs_##name ##_read, \
NULL, _read_bufsize, S_IRUSR)
#define DEBUGFS_DECLARE_WO_FILE(name) \
DEBUGFS_DECLARE_FILE(name, NULL, carl9170_debugfs_##name ##_write,\
0, S_IWUSR)
#define DEBUGFS_DECLARE_RW_FILE(name, _read_bufsize) \
DEBUGFS_DECLARE_FILE(name, carl9170_debugfs_##name ##_read, \
carl9170_debugfs_##name ##_write, \
_read_bufsize, S_IRUSR | S_IWUSR)
#define __DEBUGFS_DECLARE_RW_FILE(name, _read_bufsize, _dstate) \
__DEBUGFS_DECLARE_FILE(name, carl9170_debugfs_##name ##_read, \
carl9170_debugfs_##name ##_write, \
_read_bufsize, S_IRUSR | S_IWUSR, _dstate)
#define DEBUGFS_READONLY_FILE(name, _read_bufsize, fmt, value...) \
static char *carl9170_debugfs_ ##name ## _read(struct ar9170 *ar, \
char *buf, size_t buf_size,\
ssize_t *len) \
{ \
ADD(buf, *len, buf_size, fmt "\n", ##value); \
return buf; \
} \
DEBUGFS_DECLARE_RO_FILE(name, _read_bufsize)
static char *carl9170_debugfs_mem_usage_read(struct ar9170 *ar, char *buf,
size_t bufsize, ssize_t *len)
{
ADD(buf, *len, bufsize, "jar: [");
spin_lock_bh(&ar->mem_lock);
*len += bitmap_scnprintf(&buf[*len], bufsize - *len,
ar->mem_bitmap, ar->fw.mem_blocks);
ADD(buf, *len, bufsize, "]\n");
ADD(buf, *len, bufsize, "cookies: used:%3d / total:%3d, allocs:%d\n",
bitmap_weight(ar->mem_bitmap, ar->fw.mem_blocks),
ar->fw.mem_blocks, atomic_read(&ar->mem_allocs));
ADD(buf, *len, bufsize, "memory: free:%3d (%3d KiB) / total:%3d KiB)\n",
atomic_read(&ar->mem_free_blocks),
(atomic_read(&ar->mem_free_blocks) * ar->fw.mem_block_size) / 1024,
(ar->fw.mem_blocks * ar->fw.mem_block_size) / 1024);
spin_unlock_bh(&ar->mem_lock);
return buf;
}
DEBUGFS_DECLARE_RO_FILE(mem_usage, 512);
static char *carl9170_debugfs_qos_stat_read(struct ar9170 *ar, char *buf,
size_t bufsize, ssize_t *len)
{
ADD(buf, *len, bufsize, "%s QoS AC\n", modparam_noht ? "Hardware" :
"Software");
ADD(buf, *len, bufsize, "[ VO VI "
" BE BK ]\n");
spin_lock_bh(&ar->tx_stats_lock);
ADD(buf, *len, bufsize, "[length/limit length/limit "
"length/limit length/limit ]\n"
"[ %3d/%3d %3d/%3d "
" %3d/%3d %3d/%3d ]\n\n",
ar->tx_stats[0].len, ar->tx_stats[0].limit,
ar->tx_stats[1].len, ar->tx_stats[1].limit,
ar->tx_stats[2].len, ar->tx_stats[2].limit,
ar->tx_stats[3].len, ar->tx_stats[3].limit);
ADD(buf, *len, bufsize, "[ total total "
" total total ]\n"
"[%10d %10d %10d %10d ]\n\n",
ar->tx_stats[0].count, ar->tx_stats[1].count,
ar->tx_stats[2].count, ar->tx_stats[3].count);
spin_unlock_bh(&ar->tx_stats_lock);
ADD(buf, *len, bufsize, "[ pend/waittx pend/waittx "
" pend/waittx pend/waittx]\n"
"[ %3d/%3d %3d/%3d "
" %3d/%3d %3d/%3d ]\n\n",
skb_queue_len(&ar->tx_pending[0]),
skb_queue_len(&ar->tx_status[0]),
skb_queue_len(&ar->tx_pending[1]),
skb_queue_len(&ar->tx_status[1]),
skb_queue_len(&ar->tx_pending[2]),
skb_queue_len(&ar->tx_status[2]),
skb_queue_len(&ar->tx_pending[3]),
skb_queue_len(&ar->tx_status[3]));
return buf;
}
DEBUGFS_DECLARE_RO_FILE(qos_stat, 512);
static void carl9170_debugfs_format_frame(struct ar9170 *ar,
struct sk_buff *skb, const char *prefix, char *buf,
ssize_t *off, ssize_t bufsize)
{
struct _carl9170_tx_superframe *txc = (void *) skb->data;
struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb);
struct carl9170_tx_info *arinfo = (void *) txinfo->rate_driver_data;
struct ieee80211_hdr *hdr = (void *) txc->frame_data;
ADD(buf, *off, bufsize, "%s %p, c:%2x, DA:%pM, sq:%4d, mc:%.4x, "
"pc:%.8x, to:%d ms\n", prefix, skb, txc->s.cookie,
ieee80211_get_DA(hdr), get_seq_h(hdr),
le16_to_cpu(txc->f.mac_control), le32_to_cpu(txc->f.phy_control),
jiffies_to_msecs(jiffies - arinfo->timeout));
}
static char *carl9170_debugfs_ampdu_state_read(struct ar9170 *ar, char *buf,
size_t bufsize, ssize_t *len)
{
struct carl9170_sta_tid *iter;
struct sk_buff *skb;
int cnt = 0, fc;
int offset;
rcu_read_lock();
list_for_each_entry_rcu(iter, &ar->tx_ampdu_list, list) {
spin_lock_bh(&iter->lock);
ADD(buf, *len, bufsize, "Entry: #%2d TID:%1d, BSN:%4d, "
"SNX:%4d, HSN:%4d, BAW:%2d, state:%1d, toggles:%d\n",
cnt, iter->tid, iter->bsn, iter->snx, iter->hsn,
iter->max, iter->state, iter->counter);
ADD(buf, *len, bufsize, "\tWindow: [");
*len += bitmap_scnprintf(&buf[*len], bufsize - *len,
iter->bitmap, CARL9170_BAW_BITS);
#define BM_STR_OFF(offset) \
((CARL9170_BAW_BITS - (offset) - 1) / 4 + \
(CARL9170_BAW_BITS - (offset) - 1) / 32 + 1)
ADD(buf, *len, bufsize, ",W]\n");
offset = BM_STR_OFF(0);
ADD(buf, *len, bufsize, "\tBase Seq: %*s\n", offset, "T");
offset = BM_STR_OFF(SEQ_DIFF(iter->snx, iter->bsn));
ADD(buf, *len, bufsize, "\tNext Seq: %*s\n", offset, "W");
offset = BM_STR_OFF(((int)iter->hsn - (int)iter->bsn) %
CARL9170_BAW_BITS);
ADD(buf, *len, bufsize, "\tLast Seq: %*s\n", offset, "N");
ADD(buf, *len, bufsize, "\tPre-Aggregation reorder buffer: "
" currently queued:%d\n", skb_queue_len(&iter->queue));
fc = 0;
skb_queue_walk(&iter->queue, skb) {
char prefix[32];
snprintf(prefix, sizeof(prefix), "\t\t%3d :", fc);
carl9170_debugfs_format_frame(ar, skb, prefix, buf,
len, bufsize);
fc++;
}
spin_unlock_bh(&iter->lock);
cnt++;
}
rcu_read_unlock();
return buf;
}
DEBUGFS_DECLARE_RO_FILE(ampdu_state, 8000);
static void carl9170_debugfs_queue_dump(struct ar9170 *ar, char *buf,
ssize_t *len, size_t bufsize, struct sk_buff_head *queue)
{
struct sk_buff *skb;
char prefix[16];
int fc = 0;
spin_lock_bh(&queue->lock);
skb_queue_walk(queue, skb) {
snprintf(prefix, sizeof(prefix), "%3d :", fc);
carl9170_debugfs_format_frame(ar, skb, prefix, buf,
len, bufsize);
fc++;
}
spin_unlock_bh(&queue->lock);
}
#define DEBUGFS_QUEUE_DUMP(q, qi) \
static char *carl9170_debugfs_##q ##_##qi ##_read(struct ar9170 *ar, \
char *buf, size_t bufsize, ssize_t *len) \
{ \
carl9170_debugfs_queue_dump(ar, buf, len, bufsize, &ar->q[qi]); \
return buf; \
} \
DEBUGFS_DECLARE_RO_FILE(q##_##qi, 8000);
static char *carl9170_debugfs_sta_psm_read(struct ar9170 *ar, char *buf,
size_t bufsize, ssize_t *len)
{
ADD(buf, *len, bufsize, "psm state: %s\n", (ar->ps.off_override ?
"FORCE CAM" : (ar->ps.state ? "PSM" : "CAM")));
ADD(buf, *len, bufsize, "sleep duration: %d ms.\n", ar->ps.sleep_ms);
ADD(buf, *len, bufsize, "last power-state transition: %d ms ago.\n",
jiffies_to_msecs(jiffies - ar->ps.last_action));
ADD(buf, *len, bufsize, "last CAM->PSM transition: %d ms ago.\n",
jiffies_to_msecs(jiffies - ar->ps.last_slept));
return buf;
}
DEBUGFS_DECLARE_RO_FILE(sta_psm, 160);
static char *carl9170_debugfs_tx_stuck_read(struct ar9170 *ar, char *buf,
size_t bufsize, ssize_t *len)
{
int i;
for (i = 0; i < ar->hw->queues; i++) {
ADD(buf, *len, bufsize, "TX queue [%d]: %10d max:%10d ms.\n",
i, ieee80211_queue_stopped(ar->hw, i) ?
jiffies_to_msecs(jiffies - ar->queue_stop_timeout[i]) : 0,
jiffies_to_msecs(ar->max_queue_stop_timeout[i]));
ar->max_queue_stop_timeout[i] = 0;
}
return buf;
}
DEBUGFS_DECLARE_RO_FILE(tx_stuck, 180);
static char *carl9170_debugfs_phy_noise_read(struct ar9170 *ar, char *buf,
size_t bufsize, ssize_t *len)
{
int err;
err = carl9170_get_noisefloor(ar);
if (err) {
*len = err;
return buf;
}
ADD(buf, *len, bufsize, "Chain 0: %10d dBm, ext. chan.:%10d dBm\n",
ar->noise[0], ar->noise[2]);
ADD(buf, *len, bufsize, "Chain 2: %10d dBm, ext. chan.:%10d dBm\n",
ar->noise[1], ar->noise[3]);
return buf;
}
DEBUGFS_DECLARE_RO_FILE(phy_noise, 180);
static char *carl9170_debugfs_vif_dump_read(struct ar9170 *ar, char *buf,
size_t bufsize, ssize_t *len)
{
struct carl9170_vif_info *iter;
int i = 0;
ADD(buf, *len, bufsize, "registered VIFs:%d \\ %d\n",
ar->vifs, ar->fw.vif_num);
ADD(buf, *len, bufsize, "VIF bitmap: [");
*len += bitmap_scnprintf(&buf[*len], bufsize - *len,
&ar->vif_bitmap, ar->fw.vif_num);
ADD(buf, *len, bufsize, "]\n");
rcu_read_lock();
list_for_each_entry_rcu(iter, &ar->vif_list, list) {
struct ieee80211_vif *vif = carl9170_get_vif(iter);
ADD(buf, *len, bufsize, "\t%d = [%s VIF, id:%d, type:%x "
" mac:%pM %s]\n", i, (carl9170_get_main_vif(ar) == vif ?
"Master" : " Slave"), iter->id, vif->type, vif->addr,
iter->enable_beacon ? "beaconing " : "");
i++;
}
rcu_read_unlock();
return buf;
}
DEBUGFS_DECLARE_RO_FILE(vif_dump, 8000);
#define UPDATE_COUNTER(ar, name) ({ \
u32 __tmp[ARRAY_SIZE(name##_regs)]; \
unsigned int __i, __err = -ENODEV; \
\
for (__i = 0; __i < ARRAY_SIZE(name##_regs); __i++) { \
__tmp[__i] = name##_regs[__i].reg; \
ar->debug.stats.name##_counter[__i] = 0; \
} \
\
if (IS_STARTED(ar)) \
__err = carl9170_read_mreg(ar, ARRAY_SIZE(name##_regs), \
__tmp, ar->debug.stats.name##_counter); \
(__err); })
#define TALLY_SUM_UP(ar, name) do { \
unsigned int __i; \
\
for (__i = 0; __i < ARRAY_SIZE(name##_regs); __i++) { \
ar->debug.stats.name##_sum[__i] += \
ar->debug.stats.name##_counter[__i]; \
} \
} while (0)
#define DEBUGFS_HW_TALLY_FILE(name, f) \
static char *carl9170_debugfs_##name ## _read(struct ar9170 *ar, \
char *dum, size_t bufsize, ssize_t *ret) \
{ \
char *buf; \
int i, max_len, err; \
\
max_len = ARRAY_SIZE(name##_regs) * 80; \
buf = vmalloc(max_len); \
if (!buf) \
return NULL; \
\
err = UPDATE_COUNTER(ar, name); \
if (err) { \
*ret = err; \
return buf; \
} \
\
TALLY_SUM_UP(ar, name); \
\
for (i = 0; i < ARRAY_SIZE(name##_regs); i++) { \
ADD(buf, *ret, max_len, "%22s = %" f "[+%" f "]\n", \
name##_regs[i].nreg, ar->debug.stats.name ##_sum[i],\
ar->debug.stats.name ##_counter[i]); \
} \
\
return buf; \
} \
DEBUGFS_DECLARE_RO_FILE(name, 0);
#define DEBUGFS_HW_REG_FILE(name, f) \
static char *carl9170_debugfs_##name ## _read(struct ar9170 *ar, \
char *dum, size_t bufsize, ssize_t *ret) \
{ \
char *buf; \
int i, max_len, err; \
\
max_len = ARRAY_SIZE(name##_regs) * 80; \
buf = vmalloc(max_len); \
if (!buf) \
return NULL; \
\
err = UPDATE_COUNTER(ar, name); \
if (err) { \
*ret = err; \
return buf; \
} \
\
for (i = 0; i < ARRAY_SIZE(name##_regs); i++) { \
ADD(buf, *ret, max_len, "%22s = %" f "\n", \
name##_regs[i].nreg, \
ar->debug.stats.name##_counter[i]); \
} \
\
return buf; \
} \
DEBUGFS_DECLARE_RO_FILE(name, 0);
static ssize_t carl9170_debugfs_hw_ioread32_write(struct ar9170 *ar,
const char *buf, size_t count)
{
int err = 0, i, n = 0, max_len = 32, res;
unsigned int reg, tmp;
if (!count)
return 0;
if (count > max_len)
return -E2BIG;
res = sscanf(buf, "0x%X %d", ®, &n);
if (res < 1) {
err = -EINVAL;
goto out;
}
if (res == 1)
n = 1;
if (n > 15) {
err = -EMSGSIZE;
goto out;
}
if ((reg >= 0x280000) || ((reg + (n << 2)) >= 0x280000)) {
err = -EADDRNOTAVAIL;
goto out;
}
if (reg & 3) {
err = -EINVAL;
goto out;
}
for (i = 0; i < n; i++) {
err = carl9170_read_reg(ar, reg + (i << 2), &tmp);
if (err)
goto out;
ar->debug.ring[ar->debug.ring_tail].reg = reg + (i << 2);
ar->debug.ring[ar->debug.ring_tail].value = tmp;
ar->debug.ring_tail++;
ar->debug.ring_tail %= CARL9170_DEBUG_RING_SIZE;
}
out:
return err ? err : count;
}
static char *carl9170_debugfs_hw_ioread32_read(struct ar9170 *ar, char *buf,
size_t bufsize, ssize_t *ret)
{
int i = 0;
while (ar->debug.ring_head != ar->debug.ring_tail) {
ADD(buf, *ret, bufsize, "%.8x = %.8x\n",
ar->debug.ring[ar->debug.ring_head].reg,
ar->debug.ring[ar->debug.ring_head].value);
ar->debug.ring_head++;
ar->debug.ring_head %= CARL9170_DEBUG_RING_SIZE;
if (i++ == 64)
break;
}
ar->debug.ring_head = ar->debug.ring_tail;
return buf;
}
DEBUGFS_DECLARE_RW_FILE(hw_ioread32, CARL9170_DEBUG_RING_SIZE * 40);
static ssize_t carl9170_debugfs_bug_write(struct ar9170 *ar, const char *buf,
size_t count)
{
int err;
if (count < 1)
return -EINVAL;
switch (buf[0]) {
case 'F':
ar->needs_full_reset = true;
break;
case 'R':
if (!IS_STARTED(ar)) {
err = -EAGAIN;
goto out;
}
ar->needs_full_reset = false;
break;
case 'M':
err = carl9170_mac_reset(ar);
if (err < 0)
count = err;
goto out;
case 'P':
err = carl9170_set_channel(ar, ar->hw->conf.channel,
ar->hw->conf.channel_type, CARL9170_RFI_COLD);
if (err < 0)
count = err;
goto out;
default:
return -EINVAL;
}
carl9170_restart(ar, CARL9170_RR_USER_REQUEST);
out:
return count;
}
static char *carl9170_debugfs_bug_read(struct ar9170 *ar, char *buf,
size_t bufsize, ssize_t *ret)
{
ADD(buf, *ret, bufsize, "[P]hy reinit, [R]estart, [F]ull usb reset, "
"[M]ac reset\n");
ADD(buf, *ret, bufsize, "firmware restarts:%d, last reason:%d\n",
ar->restart_counter, ar->last_reason);
ADD(buf, *ret, bufsize, "phy reinit errors:%d (%d)\n",
ar->total_chan_fail, ar->chan_fail);
ADD(buf, *ret, bufsize, "reported firmware errors:%d\n",
ar->fw.err_counter);
ADD(buf, *ret, bufsize, "reported firmware BUGs:%d\n",
ar->fw.bug_counter);
ADD(buf, *ret, bufsize, "pending restart requests:%d\n",
atomic_read(&ar->pending_restarts));
return buf;
}
__DEBUGFS_DECLARE_RW_FILE(bug, 400, CARL9170_STOPPED);
static const char *const erp_modes[] = {
[CARL9170_ERP_INVALID] = "INVALID",
[CARL9170_ERP_AUTO] = "Automatic",
[CARL9170_ERP_MAC80211] = "Set by MAC80211",
[CARL9170_ERP_OFF] = "Force Off",
[CARL9170_ERP_RTS] = "Force RTS",
[CARL9170_ERP_CTS] = "Force CTS"
};
static char *carl9170_debugfs_erp_read(struct ar9170 *ar, char *buf,
size_t bufsize, ssize_t *ret)
{
ADD(buf, *ret, bufsize, "ERP Setting: (%d) -> %s\n", ar->erp_mode,
erp_modes[ar->erp_mode]);
return buf;
}
static ssize_t carl9170_debugfs_erp_write(struct ar9170 *ar, const char *buf,
size_t count)
{
int res, val;
if (count < 1)
return -EINVAL;
res = sscanf(buf, "%d", &val);
if (res != 1)
return -EINVAL;
if (!((val > CARL9170_ERP_INVALID) &&
(val < __CARL9170_ERP_NUM)))
return -EINVAL;
ar->erp_mode = val;
return count;
}
DEBUGFS_DECLARE_RW_FILE(erp, 80);
static ssize_t carl9170_debugfs_hw_iowrite32_write(struct ar9170 *ar,
const char *buf, size_t count)
{
int err = 0, max_len = 22, res;
u32 reg, val;
if (!count)
return 0;
if (count > max_len)
return -E2BIG;
res = sscanf(buf, "0x%X 0x%X", ®, &val);
if (res != 2) {
err = -EINVAL;
goto out;
}
if (reg <= 0x100000 || reg >= 0x280000) {
err = -EADDRNOTAVAIL;
goto out;
}
if (reg & 3) {
err = -EINVAL;
goto out;
}
err = carl9170_write_reg(ar, reg, val);
if (err)
goto out;
out:
return err ? err : count;
}
DEBUGFS_DECLARE_WO_FILE(hw_iowrite32);
DEBUGFS_HW_TALLY_FILE(hw_tx_tally, "u");
DEBUGFS_HW_TALLY_FILE(hw_rx_tally, "u");
DEBUGFS_HW_TALLY_FILE(hw_phy_errors, "u");
DEBUGFS_HW_REG_FILE(hw_wlan_queue, ".8x");
DEBUGFS_HW_REG_FILE(hw_pta_queue, ".8x");
DEBUGFS_HW_REG_FILE(hw_ampdu_info, ".8x");
DEBUGFS_QUEUE_DUMP(tx_status, 0);
DEBUGFS_QUEUE_DUMP(tx_status, 1);
DEBUGFS_QUEUE_DUMP(tx_status, 2);
DEBUGFS_QUEUE_DUMP(tx_status, 3);
DEBUGFS_QUEUE_DUMP(tx_pending, 0);
DEBUGFS_QUEUE_DUMP(tx_pending, 1);
DEBUGFS_QUEUE_DUMP(tx_pending, 2);
DEBUGFS_QUEUE_DUMP(tx_pending, 3);
DEBUGFS_READONLY_FILE(usb_tx_anch_urbs, 20, "%d",
atomic_read(&ar->tx_anch_urbs));
DEBUGFS_READONLY_FILE(usb_rx_anch_urbs, 20, "%d",
atomic_read(&ar->rx_anch_urbs));
DEBUGFS_READONLY_FILE(usb_rx_work_urbs, 20, "%d",
atomic_read(&ar->rx_work_urbs));
DEBUGFS_READONLY_FILE(usb_rx_pool_urbs, 20, "%d",
atomic_read(&ar->rx_pool_urbs));
DEBUGFS_READONLY_FILE(tx_total_queued, 20, "%d",
atomic_read(&ar->tx_total_queued));
DEBUGFS_READONLY_FILE(tx_ampdu_scheduler, 20, "%d",
atomic_read(&ar->tx_ampdu_scheduler));
DEBUGFS_READONLY_FILE(tx_total_pending, 20, "%d",
atomic_read(&ar->tx_total_pending));
DEBUGFS_READONLY_FILE(tx_ampdu_list_len, 20, "%d",
ar->tx_ampdu_list_len);
DEBUGFS_READONLY_FILE(tx_ampdu_upload, 20, "%d",
atomic_read(&ar->tx_ampdu_upload));
DEBUGFS_READONLY_FILE(tx_janitor_last_run, 64, "last run:%d ms ago",
jiffies_to_msecs(jiffies - ar->tx_janitor_last_run));
DEBUGFS_READONLY_FILE(tx_dropped, 20, "%d", ar->tx_dropped);
DEBUGFS_READONLY_FILE(rx_dropped, 20, "%d", ar->rx_dropped);
DEBUGFS_READONLY_FILE(sniffer_enabled, 20, "%d", ar->sniffer_enabled);
DEBUGFS_READONLY_FILE(rx_software_decryption, 20, "%d",
ar->rx_software_decryption);
DEBUGFS_READONLY_FILE(ampdu_factor, 20, "%d",
ar->current_factor);
DEBUGFS_READONLY_FILE(ampdu_density, 20, "%d",
ar->current_density);
DEBUGFS_READONLY_FILE(beacon_int, 20, "%d TU", ar->global_beacon_int);
DEBUGFS_READONLY_FILE(pretbtt, 20, "%d TU", ar->global_pretbtt);
void carl9170_debugfs_register(struct ar9170 *ar)
{
ar->debug_dir = debugfs_create_dir(KBUILD_MODNAME,
ar->hw->wiphy->debugfsdir);
#define DEBUGFS_ADD(name) \
debugfs_create_file(#name, carl_debugfs_##name ##_ops.attr, \
ar->debug_dir, ar, \
&carl_debugfs_##name ## _ops.fops);
DEBUGFS_ADD(usb_tx_anch_urbs);
DEBUGFS_ADD(usb_rx_pool_urbs);
DEBUGFS_ADD(usb_rx_anch_urbs);
DEBUGFS_ADD(usb_rx_work_urbs);
DEBUGFS_ADD(tx_total_queued);
DEBUGFS_ADD(tx_total_pending);
DEBUGFS_ADD(tx_dropped);
DEBUGFS_ADD(tx_stuck);
DEBUGFS_ADD(tx_ampdu_upload);
DEBUGFS_ADD(tx_ampdu_scheduler);
DEBUGFS_ADD(tx_ampdu_list_len);
DEBUGFS_ADD(rx_dropped);
DEBUGFS_ADD(sniffer_enabled);
DEBUGFS_ADD(rx_software_decryption);
DEBUGFS_ADD(mem_usage);
DEBUGFS_ADD(qos_stat);
DEBUGFS_ADD(sta_psm);
DEBUGFS_ADD(ampdu_state);
DEBUGFS_ADD(hw_tx_tally);
DEBUGFS_ADD(hw_rx_tally);
DEBUGFS_ADD(hw_phy_errors);
DEBUGFS_ADD(phy_noise);
DEBUGFS_ADD(hw_wlan_queue);
DEBUGFS_ADD(hw_pta_queue);
DEBUGFS_ADD(hw_ampdu_info);
DEBUGFS_ADD(ampdu_density);
DEBUGFS_ADD(ampdu_factor);
DEBUGFS_ADD(tx_janitor_last_run);
DEBUGFS_ADD(tx_status_0);
DEBUGFS_ADD(tx_status_1);
DEBUGFS_ADD(tx_status_2);
DEBUGFS_ADD(tx_status_3);
DEBUGFS_ADD(tx_pending_0);
DEBUGFS_ADD(tx_pending_1);
DEBUGFS_ADD(tx_pending_2);
DEBUGFS_ADD(tx_pending_3);
DEBUGFS_ADD(hw_ioread32);
DEBUGFS_ADD(hw_iowrite32);
DEBUGFS_ADD(bug);
DEBUGFS_ADD(erp);
DEBUGFS_ADD(vif_dump);
DEBUGFS_ADD(beacon_int);
DEBUGFS_ADD(pretbtt);
#undef DEBUGFS_ADD
}
void carl9170_debugfs_unregister(struct ar9170 *ar)
{
debugfs_remove_recursive(ar->debug_dir);
}
