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linux_dsm_epyc7002/drivers/net/wireless/ath/ath5k/debug.c
David S. Miller a4b4a2b7f9 Merge tag 'master-2014-10-02' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next 
John W. Linville says:

====================
pull request: wireless-next 2014-10-03

Please pull tihs batch of updates intended for the 3.18 stream!

For the iwlwifi bits, Emmanuel says:

"I have here a few things that depend on the latest mac80211's changes:
RRM, TPC, Quiet Period etc...  Eyal keeps improving our rate control
and we have a new device ID. This last patch should probably have
gone to wireless.git, but at that stage, I preferred to send it to
-next and CC stable."

For (most of) the Atheros bits, Kalle says:

"The only new feature is testmode support from me. Ben added a new method
to crash the firmware with an assert for debug purposes. As usual, we
have lots of smaller fixes from Michal. Matteo fixed a Kconfig
dependency with debugfs. I fixed some warnings recently added to
checkpatch."

For the NFC bits, Samuel says:

"We've had major updates for TI and ST Microelectronics drivers, and a
few NCI related changes.

For TI's trf7970a driver:

- Target mode support for trf7970a
- Suspend/resume support for trf7970a
- DT properties additions to handle different quirks
- A bunch of fixes for smartphone IOP related issues

For ST Microelectronics' ST21NFCA and ST21NFCB drivers:

- ISO15693 support for st21nfcb
- checkpatch and sparse related warning fixes
- Code cleanups and a few minor fixes

Finally, Marvell added ISO15693 support to the NCI stack, together with a
couple of NCI fixes."

For the Bluetooth bits, Johan says:

"This 3.18 pull request replaces the one I did on Monday ("bluetooth-next
2014-09-22", which hasn't been pulled yet). The additions since the last
request are:

 - SCO connection fix for devices not supporting eSCO
 - Cleanups regarding the SCO establishment logic
 - Remove unnecessary return value from logging functions
 - Header compression fix for 6lowpan
 - Cleanups to the ieee802154/mrf24j40 driver

Here's a copy from previous request that this one replaces:

'
Here are some more patches for 3.18. They include various fixes to the
btusb HCI driver, a fix for LE SMP, as well as adding Jukka to the
MAINTAINERS file for generic 6LoWPAN (as requested by Alexander Aring).

I've held on to this pull request a bit since we were waiting for a SCO
related fix to get sorted out first. However, since the merge window is
getting closer I decided not to wait for it. If we do get the fix sorted
out there'll probably be a second small pull request later this week.
'"

And,

"Unless 3.17 gets delayed this will probably be our last -next pull request for
3.18. We've got:

  - New Marvell hardware supportr
  - Multicast support for 6lowpan
  - Several of 6lowpan fixes & cleanups
  - Fix for a (false-positive) lockdep warning in L2CAP
  - Minor btusb cleanup"

On top of all that comes the usual sort of updates to ath5k, ath9k,
ath10k, brcmfmac, mwifiex, and wil6210.  This time around there are
also a number of rtlwifi updates to enable some new hardware and
to reconcile the in-kernel drivers with some newer releases of the
Realtek vendor drivers.  Also of note is some device tree work for
the bcma bus.

Please let me know if there are problems!
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-05 21:34:39 -04:00

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/*
* Copyright (c) 2007-2008 Bruno Randolf <bruno@thinktube.com>
*
* This file is free software: you may copy, redistribute 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 file 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, see <http://www.gnu.org/licenses/>.
*
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
* Copyright (c) 2004-2005 Atheros Communications, Inc.
* Copyright (c) 2006 Devicescape Software, Inc.
* Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com>
* Copyright (c) 2007 Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* 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 NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/export.h>
#include <linux/moduleparam.h>
#include <linux/vmalloc.h>
#include <linux/seq_file.h>
#include <linux/list.h>
#include <linux/vmalloc.h>
#include "debug.h"
#include "ath5k.h"
#include "reg.h"
#include "base.h"
static unsigned int ath5k_debug;
module_param_named(debug, ath5k_debug, uint, 0);
/* debugfs: registers */
struct reg {
const char *name;
int addr;
};
#define REG_STRUCT_INIT(r) { #r, r }
/* just a few random registers, might want to add more */
static const struct reg regs[] = {
REG_STRUCT_INIT(AR5K_CR),
REG_STRUCT_INIT(AR5K_RXDP),
REG_STRUCT_INIT(AR5K_CFG),
REG_STRUCT_INIT(AR5K_IER),
REG_STRUCT_INIT(AR5K_BCR),
REG_STRUCT_INIT(AR5K_RTSD0),
REG_STRUCT_INIT(AR5K_RTSD1),
REG_STRUCT_INIT(AR5K_TXCFG),
REG_STRUCT_INIT(AR5K_RXCFG),
REG_STRUCT_INIT(AR5K_RXJLA),
REG_STRUCT_INIT(AR5K_MIBC),
REG_STRUCT_INIT(AR5K_TOPS),
REG_STRUCT_INIT(AR5K_RXNOFRM),
REG_STRUCT_INIT(AR5K_TXNOFRM),
REG_STRUCT_INIT(AR5K_RPGTO),
REG_STRUCT_INIT(AR5K_RFCNT),
REG_STRUCT_INIT(AR5K_MISC),
REG_STRUCT_INIT(AR5K_QCUDCU_CLKGT),
REG_STRUCT_INIT(AR5K_ISR),
REG_STRUCT_INIT(AR5K_PISR),
REG_STRUCT_INIT(AR5K_SISR0),
REG_STRUCT_INIT(AR5K_SISR1),
REG_STRUCT_INIT(AR5K_SISR2),
REG_STRUCT_INIT(AR5K_SISR3),
REG_STRUCT_INIT(AR5K_SISR4),
REG_STRUCT_INIT(AR5K_IMR),
REG_STRUCT_INIT(AR5K_PIMR),
REG_STRUCT_INIT(AR5K_SIMR0),
REG_STRUCT_INIT(AR5K_SIMR1),
REG_STRUCT_INIT(AR5K_SIMR2),
REG_STRUCT_INIT(AR5K_SIMR3),
REG_STRUCT_INIT(AR5K_SIMR4),
REG_STRUCT_INIT(AR5K_DCM_ADDR),
REG_STRUCT_INIT(AR5K_DCCFG),
REG_STRUCT_INIT(AR5K_CCFG),
REG_STRUCT_INIT(AR5K_CPC0),
REG_STRUCT_INIT(AR5K_CPC1),
REG_STRUCT_INIT(AR5K_CPC2),
REG_STRUCT_INIT(AR5K_CPC3),
REG_STRUCT_INIT(AR5K_CPCOVF),
REG_STRUCT_INIT(AR5K_RESET_CTL),
REG_STRUCT_INIT(AR5K_SLEEP_CTL),
REG_STRUCT_INIT(AR5K_INTPEND),
REG_STRUCT_INIT(AR5K_SFR),
REG_STRUCT_INIT(AR5K_PCICFG),
REG_STRUCT_INIT(AR5K_GPIOCR),
REG_STRUCT_INIT(AR5K_GPIODO),
REG_STRUCT_INIT(AR5K_SREV),
};
static void *reg_start(struct seq_file *seq, loff_t *pos)
{
return *pos < ARRAY_SIZE(regs) ? (void *)&regs[*pos] : NULL;
}
static void reg_stop(struct seq_file *seq, void *p)
{
/* nothing to do */
}
static void *reg_next(struct seq_file *seq, void *p, loff_t *pos)
{
++*pos;
return *pos < ARRAY_SIZE(regs) ? (void *)&regs[*pos] : NULL;
}
static int reg_show(struct seq_file *seq, void *p)
{
struct ath5k_hw *ah = seq->private;
struct reg *r = p;
seq_printf(seq, "%-25s0x%08x\n", r->name,
ath5k_hw_reg_read(ah, r->addr));
return 0;
}
static const struct seq_operations register_seq_ops = {
.start = reg_start,
.next = reg_next,
.stop = reg_stop,
.show = reg_show
};
static int open_file_registers(struct inode *inode, struct file *file)
{
struct seq_file *s;
int res;
res = seq_open(file, &register_seq_ops);
if (res == 0) {
s = file->private_data;
s->private = inode->i_private;
}
return res;
}
static const struct file_operations fops_registers = {
.open = open_file_registers,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
.owner = THIS_MODULE,
};
/* debugfs: beacons */
static ssize_t read_file_beacon(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath5k_hw *ah = file->private_data;
char buf[500];
unsigned int len = 0;
unsigned int v;
u64 tsf;
v = ath5k_hw_reg_read(ah, AR5K_BEACON);
len += snprintf(buf + len, sizeof(buf) - len,
"%-24s0x%08x\tintval: %d\tTIM: 0x%x\n",
"AR5K_BEACON", v, v & AR5K_BEACON_PERIOD,
(v & AR5K_BEACON_TIM) >> AR5K_BEACON_TIM_S);
len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n",
"AR5K_LAST_TSTP", ath5k_hw_reg_read(ah, AR5K_LAST_TSTP));
len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n\n",
"AR5K_BEACON_CNT", ath5k_hw_reg_read(ah, AR5K_BEACON_CNT));
v = ath5k_hw_reg_read(ah, AR5K_TIMER0);
len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
"AR5K_TIMER0 (TBTT)", v, v);
v = ath5k_hw_reg_read(ah, AR5K_TIMER1);
len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
"AR5K_TIMER1 (DMA)", v, v >> 3);
v = ath5k_hw_reg_read(ah, AR5K_TIMER2);
len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
"AR5K_TIMER2 (SWBA)", v, v >> 3);
v = ath5k_hw_reg_read(ah, AR5K_TIMER3);
len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
"AR5K_TIMER3 (ATIM)", v, v);
tsf = ath5k_hw_get_tsf64(ah);
len += snprintf(buf + len, sizeof(buf) - len,
"TSF\t\t0x%016llx\tTU: %08x\n",
(unsigned long long)tsf, TSF_TO_TU(tsf));
if (len > sizeof(buf))
len = sizeof(buf);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t write_file_beacon(struct file *file,
const char __user *userbuf,
size_t count, loff_t *ppos)
{
struct ath5k_hw *ah = file->private_data;
char buf[20];
count = min_t(size_t, count, sizeof(buf) - 1);
if (copy_from_user(buf, userbuf, count))
return -EFAULT;
buf[count] = '\0';
if (strncmp(buf, "disable", 7) == 0) {
AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
pr_info("debugfs disable beacons\n");
} else if (strncmp(buf, "enable", 6) == 0) {
AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
pr_info("debugfs enable beacons\n");
}
return count;
}
static const struct file_operations fops_beacon = {
.read = read_file_beacon,
.write = write_file_beacon,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
/* debugfs: reset */
static ssize_t write_file_reset(struct file *file,
const char __user *userbuf,
size_t count, loff_t *ppos)
{
struct ath5k_hw *ah = file->private_data;
ATH5K_DBG(ah, ATH5K_DEBUG_RESET, "debug file triggered reset\n");
ieee80211_queue_work(ah->hw, &ah->reset_work);
return count;
}
static const struct file_operations fops_reset = {
.write = write_file_reset,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = noop_llseek,
};
/* debugfs: debug level */
static const struct {
enum ath5k_debug_level level;
const char *name;
const char *desc;
} dbg_info[] = {
{ ATH5K_DEBUG_RESET, "reset", "reset and initialization" },
{ ATH5K_DEBUG_INTR, "intr", "interrupt handling" },
{ ATH5K_DEBUG_MODE, "mode", "mode init/setup" },
{ ATH5K_DEBUG_XMIT, "xmit", "basic xmit operation" },
{ ATH5K_DEBUG_BEACON, "beacon", "beacon handling" },
{ ATH5K_DEBUG_CALIBRATE, "calib", "periodic calibration" },
{ ATH5K_DEBUG_TXPOWER, "txpower", "transmit power setting" },
{ ATH5K_DEBUG_LED, "led", "LED management" },
{ ATH5K_DEBUG_DUMPBANDS, "dumpbands", "dump bands" },
{ ATH5K_DEBUG_DMA, "dma", "dma start/stop" },
{ ATH5K_DEBUG_ANI, "ani", "adaptive noise immunity" },
{ ATH5K_DEBUG_DESC, "desc", "descriptor chains" },
{ ATH5K_DEBUG_ANY, "all", "show all debug levels" },
};
static ssize_t read_file_debug(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath5k_hw *ah = file->private_data;
char buf[700];
unsigned int len = 0;
unsigned int i;
len += snprintf(buf + len, sizeof(buf) - len,
"DEBUG LEVEL: 0x%08x\n\n", ah->debug.level);
for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) {
len += snprintf(buf + len, sizeof(buf) - len,
"%10s %c 0x%08x - %s\n", dbg_info[i].name,
ah->debug.level & dbg_info[i].level ? '+' : ' ',
dbg_info[i].level, dbg_info[i].desc);
}
len += snprintf(buf + len, sizeof(buf) - len,
"%10s %c 0x%08x - %s\n", dbg_info[i].name,
ah->debug.level == dbg_info[i].level ? '+' : ' ',
dbg_info[i].level, dbg_info[i].desc);
if (len > sizeof(buf))
len = sizeof(buf);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t write_file_debug(struct file *file,
const char __user *userbuf,
size_t count, loff_t *ppos)
{
struct ath5k_hw *ah = file->private_data;
unsigned int i;
char buf[20];
count = min_t(size_t, count, sizeof(buf) - 1);
if (copy_from_user(buf, userbuf, count))
return -EFAULT;
buf[count] = '\0';
for (i = 0; i < ARRAY_SIZE(dbg_info); i++) {
if (strncmp(buf, dbg_info[i].name,
strlen(dbg_info[i].name)) == 0) {
ah->debug.level ^= dbg_info[i].level; /* toggle bit */
break;
}
}
return count;
}
static const struct file_operations fops_debug = {
.read = read_file_debug,
.write = write_file_debug,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
/* debugfs: antenna */
static ssize_t read_file_antenna(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath5k_hw *ah = file->private_data;
char buf[700];
unsigned int len = 0;
unsigned int i;
unsigned int v;
len += snprintf(buf + len, sizeof(buf) - len, "antenna mode\t%d\n",
ah->ah_ant_mode);
len += snprintf(buf + len, sizeof(buf) - len, "default antenna\t%d\n",
ah->ah_def_ant);
len += snprintf(buf + len, sizeof(buf) - len, "tx antenna\t%d\n",
ah->ah_tx_ant);
len += snprintf(buf + len, sizeof(buf) - len, "\nANTENNA\t\tRX\tTX\n");
for (i = 1; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {
len += snprintf(buf + len, sizeof(buf) - len,
"[antenna %d]\t%d\t%d\n",
i, ah->stats.antenna_rx[i], ah->stats.antenna_tx[i]);
}
len += snprintf(buf + len, sizeof(buf) - len, "[invalid]\t%d\t%d\n",
ah->stats.antenna_rx[0], ah->stats.antenna_tx[0]);
v = ath5k_hw_reg_read(ah, AR5K_DEFAULT_ANTENNA);
len += snprintf(buf + len, sizeof(buf) - len,
"\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v);
v = ath5k_hw_reg_read(ah, AR5K_STA_ID1);
len += snprintf(buf + len, sizeof(buf) - len,
"AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n",
(v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0);
len += snprintf(buf + len, sizeof(buf) - len,
"AR5K_STA_ID1_DESC_ANTENNA\t%d\n",
(v & AR5K_STA_ID1_DESC_ANTENNA) != 0);
len += snprintf(buf + len, sizeof(buf) - len,
"AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n",
(v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0);
len += snprintf(buf + len, sizeof(buf) - len,
"AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n",
(v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0);
v = ath5k_hw_reg_read(ah, AR5K_PHY_AGCCTL);
len += snprintf(buf + len, sizeof(buf) - len,
"\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n",
(v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0);
v = ath5k_hw_reg_read(ah, AR5K_PHY_RESTART);
len += snprintf(buf + len, sizeof(buf) - len,
"AR5K_PHY_RESTART_DIV_GC\t\t%x\n",
(v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S);
v = ath5k_hw_reg_read(ah, AR5K_PHY_FAST_ANT_DIV);
len += snprintf(buf + len, sizeof(buf) - len,
"AR5K_PHY_FAST_ANT_DIV_EN\t%d\n",
(v & AR5K_PHY_FAST_ANT_DIV_EN) != 0);
v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_0);
len += snprintf(buf + len, sizeof(buf) - len,
"\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v);
v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_1);
len += snprintf(buf + len, sizeof(buf) - len,
"AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v);
if (len > sizeof(buf))
len = sizeof(buf);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t write_file_antenna(struct file *file,
const char __user *userbuf,
size_t count, loff_t *ppos)
{
struct ath5k_hw *ah = file->private_data;
unsigned int i;
char buf[20];
count = min_t(size_t, count, sizeof(buf) - 1);
if (copy_from_user(buf, userbuf, count))
return -EFAULT;
buf[count] = '\0';
if (strncmp(buf, "diversity", 9) == 0) {
ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_DEFAULT);
pr_info("debug: enable diversity\n");
} else if (strncmp(buf, "fixed-a", 7) == 0) {
ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_A);
pr_info("debug: fixed antenna A\n");
} else if (strncmp(buf, "fixed-b", 7) == 0) {
ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_B);
pr_info("debug: fixed antenna B\n");
} else if (strncmp(buf, "clear", 5) == 0) {
for (i = 0; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {
ah->stats.antenna_rx[i] = 0;
ah->stats.antenna_tx[i] = 0;
}
pr_info("debug: cleared antenna stats\n");
}
return count;
}
static const struct file_operations fops_antenna = {
.read = read_file_antenna,
.write = write_file_antenna,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
/* debugfs: misc */
static ssize_t read_file_misc(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath5k_hw *ah = file->private_data;
char buf[700];
unsigned int len = 0;
u32 filt = ath5k_hw_get_rx_filter(ah);
len += snprintf(buf + len, sizeof(buf) - len, "bssid-mask: %pM\n",
ah->bssidmask);
len += snprintf(buf + len, sizeof(buf) - len, "filter-flags: 0x%x ",
filt);
if (filt & AR5K_RX_FILTER_UCAST)
len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
if (filt & AR5K_RX_FILTER_MCAST)
len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
if (filt & AR5K_RX_FILTER_BCAST)
len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
if (filt & AR5K_RX_FILTER_CONTROL)
len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
if (filt & AR5K_RX_FILTER_BEACON)
len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
if (filt & AR5K_RX_FILTER_PROM)
len += snprintf(buf + len, sizeof(buf) - len, " PROM");
if (filt & AR5K_RX_FILTER_XRPOLL)
len += snprintf(buf + len, sizeof(buf) - len, " XRPOLL");
if (filt & AR5K_RX_FILTER_PROBEREQ)
len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
if (filt & AR5K_RX_FILTER_PHYERR_5212)
len += snprintf(buf + len, sizeof(buf) - len, " PHYERR-5212");
if (filt & AR5K_RX_FILTER_RADARERR_5212)
len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5212");
if (filt & AR5K_RX_FILTER_PHYERR_5211)
snprintf(buf + len, sizeof(buf) - len, " PHYERR-5211");
if (filt & AR5K_RX_FILTER_RADARERR_5211)
len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5211");
len += snprintf(buf + len, sizeof(buf) - len, "\nopmode: %s (%d)\n",
ath_opmode_to_string(ah->opmode), ah->opmode);
if (len > sizeof(buf))
len = sizeof(buf);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static const struct file_operations fops_misc = {
.read = read_file_misc,
.open = simple_open,
.owner = THIS_MODULE,
};
/* debugfs: frameerrors */
static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath5k_hw *ah = file->private_data;
struct ath5k_statistics *st = &ah->stats;
char buf[700];
unsigned int len = 0;
int i;
len += snprintf(buf + len, sizeof(buf) - len,
"RX\n---------------------\n");
len += snprintf(buf + len, sizeof(buf) - len, "CRC\t%u\t(%u%%)\n",
st->rxerr_crc,
st->rx_all_count > 0 ?
st->rxerr_crc * 100 / st->rx_all_count : 0);
len += snprintf(buf + len, sizeof(buf) - len, "PHY\t%u\t(%u%%)\n",
st->rxerr_phy,
st->rx_all_count > 0 ?
st->rxerr_phy * 100 / st->rx_all_count : 0);
for (i = 0; i < 32; i++) {
if (st->rxerr_phy_code[i])
len += snprintf(buf + len, sizeof(buf) - len,
" phy_err[%u]\t%u\n",
i, st->rxerr_phy_code[i]);
}
len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
st->rxerr_fifo,
st->rx_all_count > 0 ?
st->rxerr_fifo * 100 / st->rx_all_count : 0);
len += snprintf(buf + len, sizeof(buf) - len, "decrypt\t%u\t(%u%%)\n",
st->rxerr_decrypt,
st->rx_all_count > 0 ?
st->rxerr_decrypt * 100 / st->rx_all_count : 0);
len += snprintf(buf + len, sizeof(buf) - len, "MIC\t%u\t(%u%%)\n",
st->rxerr_mic,
st->rx_all_count > 0 ?
st->rxerr_mic * 100 / st->rx_all_count : 0);
len += snprintf(buf + len, sizeof(buf) - len, "process\t%u\t(%u%%)\n",
st->rxerr_proc,
st->rx_all_count > 0 ?
st->rxerr_proc * 100 / st->rx_all_count : 0);
len += snprintf(buf + len, sizeof(buf) - len, "jumbo\t%u\t(%u%%)\n",
st->rxerr_jumbo,
st->rx_all_count > 0 ?
st->rxerr_jumbo * 100 / st->rx_all_count : 0);
len += snprintf(buf + len, sizeof(buf) - len, "[RX all\t%u]\n",
st->rx_all_count);
len += snprintf(buf + len, sizeof(buf) - len, "RX-all-bytes\t%u\n",
st->rx_bytes_count);
len += snprintf(buf + len, sizeof(buf) - len,
"\nTX\n---------------------\n");
len += snprintf(buf + len, sizeof(buf) - len, "retry\t%u\t(%u%%)\n",
st->txerr_retry,
st->tx_all_count > 0 ?
st->txerr_retry * 100 / st->tx_all_count : 0);
len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
st->txerr_fifo,
st->tx_all_count > 0 ?
st->txerr_fifo * 100 / st->tx_all_count : 0);
len += snprintf(buf + len, sizeof(buf) - len, "filter\t%u\t(%u%%)\n",
st->txerr_filt,
st->tx_all_count > 0 ?
st->txerr_filt * 100 / st->tx_all_count : 0);
len += snprintf(buf + len, sizeof(buf) - len, "[TX all\t%u]\n",
st->tx_all_count);
len += snprintf(buf + len, sizeof(buf) - len, "TX-all-bytes\t%u\n",
st->tx_bytes_count);
if (len > sizeof(buf))
len = sizeof(buf);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t write_file_frameerrors(struct file *file,
const char __user *userbuf,
size_t count, loff_t *ppos)
{
struct ath5k_hw *ah = file->private_data;
struct ath5k_statistics *st = &ah->stats;
char buf[20];
count = min_t(size_t, count, sizeof(buf) - 1);
if (copy_from_user(buf, userbuf, count))
return -EFAULT;
buf[count] = '\0';
if (strncmp(buf, "clear", 5) == 0) {
st->rxerr_crc = 0;
st->rxerr_phy = 0;
st->rxerr_fifo = 0;
st->rxerr_decrypt = 0;
st->rxerr_mic = 0;
st->rxerr_proc = 0;
st->rxerr_jumbo = 0;
st->rx_all_count = 0;
st->txerr_retry = 0;
st->txerr_fifo = 0;
st->txerr_filt = 0;
st->tx_all_count = 0;
pr_info("debug: cleared frameerrors stats\n");
}
return count;
}
static const struct file_operations fops_frameerrors = {
.read = read_file_frameerrors,
.write = write_file_frameerrors,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
/* debugfs: ani */
static ssize_t read_file_ani(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath5k_hw *ah = file->private_data;
struct ath5k_statistics *st = &ah->stats;
struct ath5k_ani_state *as = &ah->ani_state;
char buf[700];
unsigned int len = 0;
len += snprintf(buf + len, sizeof(buf) - len,
"HW has PHY error counters:\t%s\n",
ah->ah_capabilities.cap_has_phyerr_counters ?
"yes" : "no");
len += snprintf(buf + len, sizeof(buf) - len,
"HW max spur immunity level:\t%d\n",
as->max_spur_level);
len += snprintf(buf + len, sizeof(buf) - len,
"\nANI state\n--------------------------------------------\n");
len += snprintf(buf + len, sizeof(buf) - len, "operating mode:\t\t\t");
switch (as->ani_mode) {
case ATH5K_ANI_MODE_OFF:
len += snprintf(buf + len, sizeof(buf) - len, "OFF\n");
break;
case ATH5K_ANI_MODE_MANUAL_LOW:
len += snprintf(buf + len, sizeof(buf) - len,
"MANUAL LOW\n");
break;
case ATH5K_ANI_MODE_MANUAL_HIGH:
len += snprintf(buf + len, sizeof(buf) - len,
"MANUAL HIGH\n");
break;
case ATH5K_ANI_MODE_AUTO:
len += snprintf(buf + len, sizeof(buf) - len, "AUTO\n");
break;
default:
len += snprintf(buf + len, sizeof(buf) - len,
"??? (not good)\n");
break;
}
len += snprintf(buf + len, sizeof(buf) - len,
"noise immunity level:\t\t%d\n",
as->noise_imm_level);
len += snprintf(buf + len, sizeof(buf) - len,
"spur immunity level:\t\t%d\n",
as->spur_level);
len += snprintf(buf + len, sizeof(buf) - len,
"firstep level:\t\t\t%d\n",
as->firstep_level);
len += snprintf(buf + len, sizeof(buf) - len,
"OFDM weak signal detection:\t%s\n",
as->ofdm_weak_sig ? "on" : "off");
len += snprintf(buf + len, sizeof(buf) - len,
"CCK weak signal detection:\t%s\n",
as->cck_weak_sig ? "on" : "off");
len += snprintf(buf + len, sizeof(buf) - len,
"\nMIB INTERRUPTS:\t\t%u\n",
st->mib_intr);
len += snprintf(buf + len, sizeof(buf) - len,
"beacon RSSI average:\t%d\n",
(int)ewma_read(&ah->ah_beacon_rssi_avg));
#define CC_PRINT(_struct, _field) \
_struct._field, \
_struct.cycles > 0 ? \
_struct._field * 100 / _struct.cycles : 0
len += snprintf(buf + len, sizeof(buf) - len,
"profcnt tx\t\t%u\t(%d%%)\n",
CC_PRINT(as->last_cc, tx_frame));
len += snprintf(buf + len, sizeof(buf) - len,
"profcnt rx\t\t%u\t(%d%%)\n",
CC_PRINT(as->last_cc, rx_frame));
len += snprintf(buf + len, sizeof(buf) - len,
"profcnt busy\t\t%u\t(%d%%)\n",
CC_PRINT(as->last_cc, rx_busy));
#undef CC_PRINT
len += snprintf(buf + len, sizeof(buf) - len, "profcnt cycles\t\t%u\n",
as->last_cc.cycles);
len += snprintf(buf + len, sizeof(buf) - len,
"listen time\t\t%d\tlast: %d\n",
as->listen_time, as->last_listen);
len += snprintf(buf + len, sizeof(buf) - len,
"OFDM errors\t\t%u\tlast: %u\tsum: %u\n",
as->ofdm_errors, as->last_ofdm_errors,
as->sum_ofdm_errors);
len += snprintf(buf + len, sizeof(buf) - len,
"CCK errors\t\t%u\tlast: %u\tsum: %u\n",
as->cck_errors, as->last_cck_errors,
as->sum_cck_errors);
len += snprintf(buf + len, sizeof(buf) - len,
"AR5K_PHYERR_CNT1\t%x\t(=%d)\n",
ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1),
ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1)));
len += snprintf(buf + len, sizeof(buf) - len,
"AR5K_PHYERR_CNT2\t%x\t(=%d)\n",
ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2),
ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2)));
if (len > sizeof(buf))
len = sizeof(buf);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t write_file_ani(struct file *file,
const char __user *userbuf,
size_t count, loff_t *ppos)
{
struct ath5k_hw *ah = file->private_data;
char buf[20];
count = min_t(size_t, count, sizeof(buf) - 1);
if (copy_from_user(buf, userbuf, count))
return -EFAULT;
buf[count] = '\0';
if (strncmp(buf, "sens-low", 8) == 0) {
ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_HIGH);
} else if (strncmp(buf, "sens-high", 9) == 0) {
ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_LOW);
} else if (strncmp(buf, "ani-off", 7) == 0) {
ath5k_ani_init(ah, ATH5K_ANI_MODE_OFF);
} else if (strncmp(buf, "ani-on", 6) == 0) {
ath5k_ani_init(ah, ATH5K_ANI_MODE_AUTO);
} else if (strncmp(buf, "noise-low", 9) == 0) {
ath5k_ani_set_noise_immunity_level(ah, 0);
} else if (strncmp(buf, "noise-high", 10) == 0) {
ath5k_ani_set_noise_immunity_level(ah,
ATH5K_ANI_MAX_NOISE_IMM_LVL);
} else if (strncmp(buf, "spur-low", 8) == 0) {
ath5k_ani_set_spur_immunity_level(ah, 0);
} else if (strncmp(buf, "spur-high", 9) == 0) {
ath5k_ani_set_spur_immunity_level(ah,
ah->ani_state.max_spur_level);
} else if (strncmp(buf, "fir-low", 7) == 0) {
ath5k_ani_set_firstep_level(ah, 0);
} else if (strncmp(buf, "fir-high", 8) == 0) {
ath5k_ani_set_firstep_level(ah, ATH5K_ANI_MAX_FIRSTEP_LVL);
} else if (strncmp(buf, "ofdm-off", 8) == 0) {
ath5k_ani_set_ofdm_weak_signal_detection(ah, false);
} else if (strncmp(buf, "ofdm-on", 7) == 0) {
ath5k_ani_set_ofdm_weak_signal_detection(ah, true);
} else if (strncmp(buf, "cck-off", 7) == 0) {
ath5k_ani_set_cck_weak_signal_detection(ah, false);
} else if (strncmp(buf, "cck-on", 6) == 0) {
ath5k_ani_set_cck_weak_signal_detection(ah, true);
}
return count;
}
static const struct file_operations fops_ani = {
.read = read_file_ani,
.write = write_file_ani,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
/* debugfs: queues etc */
static ssize_t read_file_queue(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath5k_hw *ah = file->private_data;
char buf[700];
unsigned int len = 0;
struct ath5k_txq *txq;
struct ath5k_buf *bf, *bf0;
int i, n;
len += snprintf(buf + len, sizeof(buf) - len,
"available txbuffers: %d\n", ah->txbuf_len);
for (i = 0; i < ARRAY_SIZE(ah->txqs); i++) {
txq = &ah->txqs[i];
len += snprintf(buf + len, sizeof(buf) - len,
"%02d: %ssetup\n", i, txq->setup ? "" : "not ");
if (!txq->setup)
continue;
n = 0;
spin_lock_bh(&txq->lock);
list_for_each_entry_safe(bf, bf0, &txq->q, list)
n++;
spin_unlock_bh(&txq->lock);
len += snprintf(buf + len, sizeof(buf) - len,
" len: %d bufs: %d\n", txq->txq_len, n);
len += snprintf(buf + len, sizeof(buf) - len,
" stuck: %d\n", txq->txq_stuck);
}
if (len > sizeof(buf))
len = sizeof(buf);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t write_file_queue(struct file *file,
const char __user *userbuf,
size_t count, loff_t *ppos)
{
struct ath5k_hw *ah = file->private_data;
char buf[20];
count = min_t(size_t, count, sizeof(buf) - 1);
if (copy_from_user(buf, userbuf, count))
return -EFAULT;
buf[count] = '\0';
if (strncmp(buf, "start", 5) == 0)
ieee80211_wake_queues(ah->hw);
else if (strncmp(buf, "stop", 4) == 0)
ieee80211_stop_queues(ah->hw);
return count;
}
static const struct file_operations fops_queue = {
.read = read_file_queue,
.write = write_file_queue,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
/* debugfs: eeprom */
struct eeprom_private {
u16 *buf;
int len;
};
static int open_file_eeprom(struct inode *inode, struct file *file)
{
struct eeprom_private *ep;
struct ath5k_hw *ah = inode->i_private;
bool res;
int i, ret;
u32 eesize;
u16 val, *buf;
/* Get eeprom size */
res = ath5k_hw_nvram_read(ah, AR5K_EEPROM_SIZE_UPPER, &val);
if (!res)
return -EACCES;
if (val == 0) {
eesize = AR5K_EEPROM_INFO_MAX + AR5K_EEPROM_INFO_BASE;
} else {
eesize = (val & AR5K_EEPROM_SIZE_UPPER_MASK) <<
AR5K_EEPROM_SIZE_ENDLOC_SHIFT;
ath5k_hw_nvram_read(ah, AR5K_EEPROM_SIZE_LOWER, &val);
eesize = eesize | val;
}
if (eesize > 4096)
return -EINVAL;
/* Create buffer and read in eeprom */
buf = vmalloc(eesize);
if (!buf) {
ret = -ENOMEM;
goto err;
}
for (i = 0; i < eesize; ++i) {
AR5K_EEPROM_READ(i, val);
buf[i] = val;
}
/* Create private struct and assign to file */
ep = kmalloc(sizeof(*ep), GFP_KERNEL);
if (!ep) {
ret = -ENOMEM;
goto freebuf;
}
ep->buf = buf;
ep->len = i;
file->private_data = (void *)ep;
return 0;
freebuf:
vfree(buf);
err:
return ret;
}
static ssize_t read_file_eeprom(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct eeprom_private *ep = file->private_data;
return simple_read_from_buffer(user_buf, count, ppos, ep->buf, ep->len);
}
static int release_file_eeprom(struct inode *inode, struct file *file)
{
struct eeprom_private *ep = file->private_data;
vfree(ep->buf);
kfree(ep);
return 0;
}
static const struct file_operations fops_eeprom = {
.open = open_file_eeprom,
.read = read_file_eeprom,
.release = release_file_eeprom,
.owner = THIS_MODULE,
};
void
ath5k_debug_init_device(struct ath5k_hw *ah)
{
struct dentry *phydir;
ah->debug.level = ath5k_debug;
phydir = debugfs_create_dir("ath5k", ah->hw->wiphy->debugfsdir);
if (!phydir)
return;
debugfs_create_file("debug", S_IWUSR | S_IRUSR, phydir, ah,
&fops_debug);
debugfs_create_file("registers", S_IRUSR, phydir, ah, &fops_registers);
debugfs_create_file("beacon", S_IWUSR | S_IRUSR, phydir, ah,
&fops_beacon);
debugfs_create_file("reset", S_IWUSR, phydir, ah, &fops_reset);
debugfs_create_file("antenna", S_IWUSR | S_IRUSR, phydir, ah,
&fops_antenna);
debugfs_create_file("misc", S_IRUSR, phydir, ah, &fops_misc);
debugfs_create_file("eeprom", S_IRUSR, phydir, ah, &fops_eeprom);
debugfs_create_file("frameerrors", S_IWUSR | S_IRUSR, phydir, ah,
&fops_frameerrors);
debugfs_create_file("ani", S_IWUSR | S_IRUSR, phydir, ah, &fops_ani);
debugfs_create_file("queue", S_IWUSR | S_IRUSR, phydir, ah,
&fops_queue);
debugfs_create_bool("32khz_clock", S_IWUSR | S_IRUSR, phydir,
&ah->ah_use_32khz_clock);
}
/* functions used in other places */
void
ath5k_debug_dump_bands(struct ath5k_hw *ah)
{
unsigned int b, i;
if (likely(!(ah->debug.level & ATH5K_DEBUG_DUMPBANDS)))
return;
BUG_ON(!ah->sbands);
for (b = 0; b < IEEE80211_NUM_BANDS; b++) {
struct ieee80211_supported_band *band = &ah->sbands[b];
char bname[6];
switch (band->band) {
case IEEE80211_BAND_2GHZ:
strcpy(bname, "2 GHz");
break;
case IEEE80211_BAND_5GHZ:
strcpy(bname, "5 GHz");
break;
default:
printk(KERN_DEBUG "Band not supported: %d\n",
band->band);
return;
}
printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname,
band->n_channels, band->n_bitrates);
printk(KERN_DEBUG " channels:\n");
for (i = 0; i < band->n_channels; i++)
printk(KERN_DEBUG " %3d %d %.4x %.4x\n",
ieee80211_frequency_to_channel(
band->channels[i].center_freq),
band->channels[i].center_freq,
band->channels[i].hw_value,
band->channels[i].flags);
printk(KERN_DEBUG " rates:\n");
for (i = 0; i < band->n_bitrates; i++)
printk(KERN_DEBUG " %4d %.4x %.4x %.4x\n",
band->bitrates[i].bitrate,
band->bitrates[i].hw_value,
band->bitrates[i].flags,
band->bitrates[i].hw_value_short);
}
}
static inline void
ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done,
struct ath5k_rx_status *rs)
{
struct ath5k_desc *ds = bf->desc;
struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx;
printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",
ds, (unsigned long long)bf->daddr,
ds->ds_link, ds->ds_data,
rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1,
rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1,
!done ? ' ' : (rs->rs_status == 0) ? '*' : '!');
}
void
ath5k_debug_printrxbuffs(struct ath5k_hw *ah)
{
struct ath5k_desc *ds;
struct ath5k_buf *bf;
struct ath5k_rx_status rs = {};
int status;
if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))
return;
printk(KERN_DEBUG "rxdp %x, rxlink %p\n",
ath5k_hw_get_rxdp(ah), ah->rxlink);
spin_lock_bh(&ah->rxbuflock);
list_for_each_entry(bf, &ah->rxbuf, list) {
ds = bf->desc;
status = ah->ah_proc_rx_desc(ah, ds, &rs);
if (!status)
ath5k_debug_printrxbuf(bf, status == 0, &rs);
}
spin_unlock_bh(&ah->rxbuflock);
}
void
ath5k_debug_printtxbuf(struct ath5k_hw *ah, struct ath5k_buf *bf)
{
struct ath5k_desc *ds = bf->desc;
struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212;
struct ath5k_tx_status ts = {};
int done;
if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))
return;
done = ah->ah_proc_tx_desc(ah, bf->desc, &ts);
printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x "
"%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link,
ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1,
td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3,
td->tx_stat.tx_status_0, td->tx_stat.tx_status_1,
done ? ' ' : (ts.ts_status == 0) ? '*' : '!');
}
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