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linux/drivers/net/wireless/ath/ath5k/debug.c
Felix Fietkau 5b7916ad8c ath5k: clean up debugfs code 
The pointers to the debugfs entries do not need to be saved, because they
will be recursively removed when the wiphy is unregistered.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-12 16:59:24 -04:00

1030 lines
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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.
*/
#include "base.h"
#include "debug.h"
static unsigned int ath5k_debug;
module_param_named(debug, ath5k_debug, uint, 0);
#ifdef CONFIG_ATH5K_DEBUG
#include <linux/seq_file.h>
#include "reg.h"
#include "ani.h"
static int ath5k_debugfs_open(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return 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_softc *sc = seq->private;
struct reg *r = p;
seq_printf(seq, "%-25s0x%08x\n", r->name,
ath5k_hw_reg_read(sc->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_softc *sc = file->private_data;
struct ath5k_hw *ah = sc->ah;
char buf[500];
unsigned int len = 0;
unsigned int v;
u64 tsf;
v = ath5k_hw_reg_read(sc->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(sc->ah, AR5K_LAST_TSTP));
len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\n\n",
"AR5K_BEACON_CNT", ath5k_hw_reg_read(sc->ah, AR5K_BEACON_CNT));
v = ath5k_hw_reg_read(sc->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(sc->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(sc->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(sc->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(sc->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_softc *sc = file->private_data;
struct ath5k_hw *ah = sc->ah;
char buf[20];
if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
return -EFAULT;
if (strncmp(buf, "disable", 7) == 0) {
AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
printk(KERN_INFO "debugfs disable beacons\n");
} else if (strncmp(buf, "enable", 6) == 0) {
AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
printk(KERN_INFO "debugfs enable beacons\n");
}
return count;
}
static const struct file_operations fops_beacon = {
.read = read_file_beacon,
.write = write_file_beacon,
.open = ath5k_debugfs_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_softc *sc = file->private_data;
ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "debug file triggered reset\n");
ieee80211_queue_work(sc->hw, &sc->reset_work);
return count;
}
static const struct file_operations fops_reset = {
.write = write_file_reset,
.open = ath5k_debugfs_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_softc *sc = 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", sc->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,
sc->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,
sc->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_softc *sc = file->private_data;
unsigned int i;
char buf[20];
if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
return -EFAULT;
for (i = 0; i < ARRAY_SIZE(dbg_info); i++) {
if (strncmp(buf, dbg_info[i].name,
strlen(dbg_info[i].name)) == 0) {
sc->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 = ath5k_debugfs_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_softc *sc = 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",
sc->ah->ah_ant_mode);
len += snprintf(buf+len, sizeof(buf)-len, "default antenna\t%d\n",
sc->ah->ah_def_ant);
len += snprintf(buf+len, sizeof(buf)-len, "tx antenna\t%d\n",
sc->ah->ah_tx_ant);
len += snprintf(buf+len, sizeof(buf)-len, "\nANTENNA\t\tRX\tTX\n");
for (i = 1; i < ARRAY_SIZE(sc->stats.antenna_rx); i++) {
len += snprintf(buf+len, sizeof(buf)-len,
"[antenna %d]\t%d\t%d\n",
i, sc->stats.antenna_rx[i], sc->stats.antenna_tx[i]);
}
len += snprintf(buf+len, sizeof(buf)-len, "[invalid]\t%d\t%d\n",
sc->stats.antenna_rx[0], sc->stats.antenna_tx[0]);
v = ath5k_hw_reg_read(sc->ah, AR5K_DEFAULT_ANTENNA);
len += snprintf(buf+len, sizeof(buf)-len,
"\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v);
v = ath5k_hw_reg_read(sc->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(sc->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(sc->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(sc->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(sc->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(sc->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_softc *sc = file->private_data;
unsigned int i;
char buf[20];
if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
return -EFAULT;
if (strncmp(buf, "diversity", 9) == 0) {
ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_DEFAULT);
printk(KERN_INFO "ath5k debug: enable diversity\n");
} else if (strncmp(buf, "fixed-a", 7) == 0) {
ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_A);
printk(KERN_INFO "ath5k debugfs: fixed antenna A\n");
} else if (strncmp(buf, "fixed-b", 7) == 0) {
ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_B);
printk(KERN_INFO "ath5k debug: fixed antenna B\n");
} else if (strncmp(buf, "clear", 5) == 0) {
for (i = 0; i < ARRAY_SIZE(sc->stats.antenna_rx); i++) {
sc->stats.antenna_rx[i] = 0;
sc->stats.antenna_tx[i] = 0;
}
printk(KERN_INFO "ath5k debug: cleared antenna stats\n");
}
return count;
}
static const struct file_operations fops_antenna = {
.read = read_file_antenna,
.write = write_file_antenna,
.open = ath5k_debugfs_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_softc *sc = file->private_data;
char buf[700];
unsigned int len = 0;
u32 filt = ath5k_hw_get_rx_filter(sc->ah);
len += snprintf(buf+len, sizeof(buf)-len, "bssid-mask: %pM\n",
sc->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(sc->opmode), sc->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 = ath5k_debugfs_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_softc *sc = file->private_data;
struct ath5k_statistics *st = &sc->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_softc *sc = file->private_data;
struct ath5k_statistics *st = &sc->stats;
char buf[20];
if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
return -EFAULT;
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;
printk(KERN_INFO "ath5k debug: cleared frameerrors stats\n");
}
return count;
}
static const struct file_operations fops_frameerrors = {
.read = read_file_frameerrors,
.write = write_file_frameerrors,
.open = ath5k_debugfs_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_softc *sc = file->private_data;
struct ath5k_statistics *st = &sc->stats;
struct ath5k_ani_state *as = &sc->ani_state;
char buf[700];
unsigned int len = 0;
len += snprintf(buf+len, sizeof(buf)-len,
"HW has PHY error counters:\t%s\n",
sc->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(&sc->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(sc->ah, AR5K_PHYERR_CNT1),
ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT1)));
len += snprintf(buf+len, sizeof(buf)-len,
"AR5K_PHYERR_CNT2\t%x\t(=%d)\n",
ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT2),
ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
ath5k_hw_reg_read(sc->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_softc *sc = file->private_data;
char buf[20];
if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
return -EFAULT;
if (strncmp(buf, "sens-low", 8) == 0) {
ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_MANUAL_HIGH);
} else if (strncmp(buf, "sens-high", 9) == 0) {
ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_MANUAL_LOW);
} else if (strncmp(buf, "ani-off", 7) == 0) {
ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_OFF);
} else if (strncmp(buf, "ani-on", 6) == 0) {
ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_AUTO);
} else if (strncmp(buf, "noise-low", 9) == 0) {
ath5k_ani_set_noise_immunity_level(sc->ah, 0);
} else if (strncmp(buf, "noise-high", 10) == 0) {
ath5k_ani_set_noise_immunity_level(sc->ah,
ATH5K_ANI_MAX_NOISE_IMM_LVL);
} else if (strncmp(buf, "spur-low", 8) == 0) {
ath5k_ani_set_spur_immunity_level(sc->ah, 0);
} else if (strncmp(buf, "spur-high", 9) == 0) {
ath5k_ani_set_spur_immunity_level(sc->ah,
sc->ani_state.max_spur_level);
} else if (strncmp(buf, "fir-low", 7) == 0) {
ath5k_ani_set_firstep_level(sc->ah, 0);
} else if (strncmp(buf, "fir-high", 8) == 0) {
ath5k_ani_set_firstep_level(sc->ah, ATH5K_ANI_MAX_FIRSTEP_LVL);
} else if (strncmp(buf, "ofdm-off", 8) == 0) {
ath5k_ani_set_ofdm_weak_signal_detection(sc->ah, false);
} else if (strncmp(buf, "ofdm-on", 7) == 0) {
ath5k_ani_set_ofdm_weak_signal_detection(sc->ah, true);
} else if (strncmp(buf, "cck-off", 7) == 0) {
ath5k_ani_set_cck_weak_signal_detection(sc->ah, false);
} else if (strncmp(buf, "cck-on", 6) == 0) {
ath5k_ani_set_cck_weak_signal_detection(sc->ah, true);
}
return count;
}
static const struct file_operations fops_ani = {
.read = read_file_ani,
.write = write_file_ani,
.open = ath5k_debugfs_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_softc *sc = 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", sc->txbuf_len);
for (i = 0; i < ARRAY_SIZE(sc->txqs); i++) {
txq = &sc->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_softc *sc = file->private_data;
char buf[20];
if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
return -EFAULT;
if (strncmp(buf, "start", 5) == 0)
ieee80211_wake_queues(sc->hw);
else if (strncmp(buf, "stop", 4) == 0)
ieee80211_stop_queues(sc->hw);
return count;
}
static const struct file_operations fops_queue = {
.read = read_file_queue,
.write = write_file_queue,
.open = ath5k_debugfs_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
void
ath5k_debug_init_device(struct ath5k_softc *sc)
{
struct dentry *phydir;
sc->debug.level = ath5k_debug;
phydir = debugfs_create_dir("ath5k", sc->hw->wiphy->debugfsdir);
if (!phydir)
return;
debugfs_create_file("debug", S_IWUSR | S_IRUSR, phydir, sc,
&fops_debug);
debugfs_create_file("registers", S_IRUSR, phydir, sc, &fops_registers);
debugfs_create_file("beacon", S_IWUSR | S_IRUSR, phydir, sc,
&fops_beacon);
debugfs_create_file("reset", S_IWUSR, phydir, sc, &fops_reset);
debugfs_create_file("antenna", S_IWUSR | S_IRUSR, phydir, sc,
&fops_antenna);
debugfs_create_file("misc", S_IRUSR, phydir, sc, &fops_misc);
debugfs_create_file("frameerrors", S_IWUSR | S_IRUSR, phydir, sc,
&fops_frameerrors);
debugfs_create_file("ani", S_IWUSR | S_IRUSR, phydir, sc, &fops_ani);
debugfs_create_file("queue", S_IWUSR | S_IRUSR, phydir, sc,
&fops_queue);
}
/* functions used in other places */
void
ath5k_debug_dump_bands(struct ath5k_softc *sc)
{
unsigned int b, i;
if (likely(!(sc->debug.level & ATH5K_DEBUG_DUMPBANDS)))
return;
BUG_ON(!sc->sbands);
for (b = 0; b < IEEE80211_NUM_BANDS; b++) {
struct ieee80211_supported_band *band = &sc->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_softc *sc, struct ath5k_hw *ah)
{
struct ath5k_desc *ds;
struct ath5k_buf *bf;
struct ath5k_rx_status rs = {};
int status;
if (likely(!(sc->debug.level & ATH5K_DEBUG_DESC)))
return;
printk(KERN_DEBUG "rxdp %x, rxlink %p\n",
ath5k_hw_get_rxdp(ah), sc->rxlink);
spin_lock_bh(&sc->rxbuflock);
list_for_each_entry(bf, &sc->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(&sc->rxbuflock);
}
void
ath5k_debug_printtxbuf(struct ath5k_softc *sc, 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(!(sc->debug.level & ATH5K_DEBUG_DESC)))
return;
done = sc->ah->ah_proc_tx_desc(sc->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) ? '*' : '!');
}
#endif /* ifdef CONFIG_ATH5K_DEBUG */
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