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OpenCloudOS-Kernel/drivers/net/wireless/ath/ath9k/debug.c

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/*
* 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/slab.h>
#include <asm/unaligned.h>
#include "ath9k.h"
#define REG_WRITE_D(_ah, _reg, _val) \
ath9k_hw_common(_ah)->ops->write((_ah), (_val), (_reg))
#define REG_READ_D(_ah, _reg) \
ath9k_hw_common(_ah)->ops->read((_ah), (_reg))
static struct dentry *ath9k_debugfs_root;
static int ath9k_debugfs_open(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return 0;
}
#ifdef CONFIG_ATH_DEBUG
static ssize_t read_file_debug(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath_softc *sc = file->private_data;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
char buf[32];
unsigned int len;
len = sprintf(buf, "0x%08x\n", common->debug_mask);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath_softc *sc = file->private_data;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
unsigned long mask;
char buf[32];
ssize_t len;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
if (strict_strtoul(buf, 0, &mask))
return -EINVAL;
common->debug_mask = mask;
return count;
}
static const struct file_operations fops_debug = {
.read = read_file_debug,
.write = write_file_debug,
.open = ath9k_debugfs_open,
.owner = THIS_MODULE
};
#endif
#define DMA_BUF_LEN 1024
static ssize_t read_file_tx_chainmask(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath_softc *sc = file->private_data;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
char buf[32];
unsigned int len;
len = sprintf(buf, "0x%08x\n", common->tx_chainmask);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t write_file_tx_chainmask(struct file *file, const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath_softc *sc = file->private_data;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
unsigned long mask;
char buf[32];
ssize_t len;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
if (strict_strtoul(buf, 0, &mask))
return -EINVAL;
common->tx_chainmask = mask;
sc->sc_ah->caps.tx_chainmask = mask;
return count;
}
static const struct file_operations fops_tx_chainmask = {
.read = read_file_tx_chainmask,
.write = write_file_tx_chainmask,
.open = ath9k_debugfs_open,
.owner = THIS_MODULE
};
static ssize_t read_file_rx_chainmask(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath_softc *sc = file->private_data;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
char buf[32];
unsigned int len;
len = sprintf(buf, "0x%08x\n", common->rx_chainmask);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t write_file_rx_chainmask(struct file *file, const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath_softc *sc = file->private_data;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
unsigned long mask;
char buf[32];
ssize_t len;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
if (strict_strtoul(buf, 0, &mask))
return -EINVAL;
common->rx_chainmask = mask;
sc->sc_ah->caps.rx_chainmask = mask;
return count;
}
static const struct file_operations fops_rx_chainmask = {
.read = read_file_rx_chainmask,
.write = write_file_rx_chainmask,
.open = ath9k_debugfs_open,
.owner = THIS_MODULE
};
static ssize_t read_file_dma(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath_softc *sc = file->private_data;
struct ath_hw *ah = sc->sc_ah;
char *buf;
int retval;
unsigned int len = 0;
u32 val[ATH9K_NUM_DMA_DEBUG_REGS];
int i, qcuOffset = 0, dcuOffset = 0;
u32 *qcuBase = &val[0], *dcuBase = &val[4];
buf = kmalloc(DMA_BUF_LEN, GFP_KERNEL);
if (!buf)
return -ENOMEM;
ath9k_ps_wakeup(sc);
REG_WRITE_D(ah, AR_MACMISC,
((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
(AR_MACMISC_MISC_OBS_BUS_1 <<
AR_MACMISC_MISC_OBS_BUS_MSB_S)));
len += snprintf(buf + len, DMA_BUF_LEN - len,
"Raw DMA Debug values:\n");
for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
if (i % 4 == 0)
len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32)));
len += snprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ",
i, val[i]);
}
len += snprintf(buf + len, DMA_BUF_LEN - len, "\n\n");
len += snprintf(buf + len, DMA_BUF_LEN - len,
"Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) {
if (i == 8) {
qcuOffset = 0;
qcuBase++;
}
if (i == 6) {
dcuOffset = 0;
dcuBase++;
}
len += snprintf(buf + len, DMA_BUF_LEN - len,
"%2d %2x %1x %2x %2x\n",
i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
(*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
val[2] & (0x7 << (i * 3)) >> (i * 3),
(*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
}
len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
len += snprintf(buf + len, DMA_BUF_LEN - len,
"qcu_stitch state: %2x qcu_fetch state: %2x\n",
(val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
len += snprintf(buf + len, DMA_BUF_LEN - len,
"qcu_complete state: %2x dcu_complete state: %2x\n",
(val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
len += snprintf(buf + len, DMA_BUF_LEN - len,
"dcu_arb state: %2x dcu_fp state: %2x\n",
(val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
len += snprintf(buf + len, DMA_BUF_LEN - len,
"chan_idle_dur: %3d chan_idle_dur_valid: %1d\n",
(val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
len += snprintf(buf + len, DMA_BUF_LEN - len,
"txfifo_valid_0: %1d txfifo_valid_1: %1d\n",
(val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
len += snprintf(buf + len, DMA_BUF_LEN - len,
"txfifo_dcu_num_0: %2d txfifo_dcu_num_1: %2d\n",
(val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
len += snprintf(buf + len, DMA_BUF_LEN - len, "pcu observe: 0x%x\n",
REG_READ_D(ah, AR_OBS_BUS_1));
len += snprintf(buf + len, DMA_BUF_LEN - len,
"AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
ath9k_ps_restore(sc);
if (len > DMA_BUF_LEN)
len = DMA_BUF_LEN;
retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
kfree(buf);
return retval;
}
static const struct file_operations fops_dma = {
.read = read_file_dma,
.open = ath9k_debugfs_open,
.owner = THIS_MODULE
};
void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
{
if (status)
sc->debug.stats.istats.total++;
if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
if (status & ATH9K_INT_RXLP)
sc->debug.stats.istats.rxlp++;
if (status & ATH9K_INT_RXHP)
sc->debug.stats.istats.rxhp++;
if (status & ATH9K_INT_BB_WATCHDOG)
sc->debug.stats.istats.bb_watchdog++;
} else {
if (status & ATH9K_INT_RX)
sc->debug.stats.istats.rxok++;
}
if (status & ATH9K_INT_RXEOL)
sc->debug.stats.istats.rxeol++;
if (status & ATH9K_INT_RXORN)
sc->debug.stats.istats.rxorn++;
if (status & ATH9K_INT_TX)
sc->debug.stats.istats.txok++;
if (status & ATH9K_INT_TXURN)
sc->debug.stats.istats.txurn++;
if (status & ATH9K_INT_MIB)
sc->debug.stats.istats.mib++;
if (status & ATH9K_INT_RXPHY)
sc->debug.stats.istats.rxphyerr++;
if (status & ATH9K_INT_RXKCM)
sc->debug.stats.istats.rx_keycache_miss++;
if (status & ATH9K_INT_SWBA)
sc->debug.stats.istats.swba++;
if (status & ATH9K_INT_BMISS)
sc->debug.stats.istats.bmiss++;
if (status & ATH9K_INT_BNR)
sc->debug.stats.istats.bnr++;
if (status & ATH9K_INT_CST)
sc->debug.stats.istats.cst++;
if (status & ATH9K_INT_GTT)
sc->debug.stats.istats.gtt++;
if (status & ATH9K_INT_TIM)
sc->debug.stats.istats.tim++;
if (status & ATH9K_INT_CABEND)
sc->debug.stats.istats.cabend++;
if (status & ATH9K_INT_DTIMSYNC)
sc->debug.stats.istats.dtimsync++;
if (status & ATH9K_INT_DTIM)
sc->debug.stats.istats.dtim++;
}
static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath_softc *sc = file->private_data;
char buf[512];
unsigned int len = 0;
if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp);
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "RXHP", sc->debug.stats.istats.rxhp);
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "WATCHDOG",
sc->debug.stats.istats.bb_watchdog);
} else {
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "RX", sc->debug.stats.istats.rxok);
}
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "RXEOL", sc->debug.stats.istats.rxeol);
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "RXORN", sc->debug.stats.istats.rxorn);
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "TX", sc->debug.stats.istats.txok);
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "TXURN", sc->debug.stats.istats.txurn);
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "MIB", sc->debug.stats.istats.mib);
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "RXPHY", sc->debug.stats.istats.rxphyerr);
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "RXKCM", sc->debug.stats.istats.rx_keycache_miss);
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "SWBA", sc->debug.stats.istats.swba);
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "BMISS", sc->debug.stats.istats.bmiss);
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "BNR", sc->debug.stats.istats.bnr);
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "CST", sc->debug.stats.istats.cst);
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "GTT", sc->debug.stats.istats.gtt);
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "TIM", sc->debug.stats.istats.tim);
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "CABEND", sc->debug.stats.istats.cabend);
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "DTIMSYNC", sc->debug.stats.istats.dtimsync);
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "DTIM", sc->debug.stats.istats.dtim);
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total);
if (len > sizeof(buf))
len = sizeof(buf);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static const struct file_operations fops_interrupt = {
.read = read_file_interrupt,
.open = ath9k_debugfs_open,
.owner = THIS_MODULE
};
void ath_debug_stat_rc(struct ath_softc *sc, int final_rate)
{
struct ath_rc_stats *stats;
stats = &sc->debug.stats.rcstats[final_rate];
stats->success++;
}
void ath_debug_stat_retries(struct ath_softc *sc, int rix,
int xretries, int retries, u8 per)
{
struct ath_rc_stats *stats = &sc->debug.stats.rcstats[rix];
stats->xretries += xretries;
stats->retries += retries;
stats->per = per;
}
static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath_softc *sc = file->private_data;
char *buf;
unsigned int len = 0, max;
int i = 0;
ssize_t retval;
if (sc->cur_rate_table == NULL)
return 0;
max = 80 + sc->cur_rate_table->rate_cnt * 1024 + 1;
buf = kmalloc(max, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
len += sprintf(buf, "%6s %6s %6s "
"%10s %10s %10s %10s\n",
"HT", "MCS", "Rate",
"Success", "Retries", "XRetries", "PER");
for (i = 0; i < sc->cur_rate_table->rate_cnt; i++) {
u32 ratekbps = sc->cur_rate_table->info[i].ratekbps;
struct ath_rc_stats *stats = &sc->debug.stats.rcstats[i];
char mcs[5];
char htmode[5];
int used_mcs = 0, used_htmode = 0;
if (WLAN_RC_PHY_HT(sc->cur_rate_table->info[i].phy)) {
used_mcs = snprintf(mcs, 5, "%d",
sc->cur_rate_table->info[i].ratecode);
if (WLAN_RC_PHY_40(sc->cur_rate_table->info[i].phy))
used_htmode = snprintf(htmode, 5, "HT40");
else if (WLAN_RC_PHY_20(sc->cur_rate_table->info[i].phy))
used_htmode = snprintf(htmode, 5, "HT20");
else
used_htmode = snprintf(htmode, 5, "????");
}
mcs[used_mcs] = '\0';
htmode[used_htmode] = '\0';
len += snprintf(buf + len, max - len,
"%6s %6s %3u.%d: "
"%10u %10u %10u %10u\n",
htmode,
mcs,
ratekbps / 1000,
(ratekbps % 1000) / 100,
stats->success,
stats->retries,
stats->xretries,
stats->per);
}
if (len > max)
len = max;
retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
kfree(buf);
return retval;
}
static const struct file_operations fops_rcstat = {
.read = read_file_rcstat,
.open = ath9k_debugfs_open,
.owner = THIS_MODULE
};
static const char * ath_wiphy_state_str(enum ath_wiphy_state state)
{
switch (state) {
case ATH_WIPHY_INACTIVE:
return "INACTIVE";
case ATH_WIPHY_ACTIVE:
return "ACTIVE";
case ATH_WIPHY_PAUSING:
return "PAUSING";
case ATH_WIPHY_PAUSED:
return "PAUSED";
case ATH_WIPHY_SCAN:
return "SCAN";
}
return "?";
}
static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath_softc *sc = file->private_data;
char buf[512];
unsigned int len = 0;
int i;
u8 addr[ETH_ALEN];
len += snprintf(buf + len, sizeof(buf) - len,
"primary: %s (%s chan=%d ht=%d)\n",
wiphy_name(sc->pri_wiphy->hw->wiphy),
ath_wiphy_state_str(sc->pri_wiphy->state),
sc->pri_wiphy->chan_idx, sc->pri_wiphy->chan_is_ht);
for (i = 0; i < sc->num_sec_wiphy; i++) {
struct ath_wiphy *aphy = sc->sec_wiphy[i];
if (aphy == NULL)
continue;
len += snprintf(buf + len, sizeof(buf) - len,
"secondary: %s (%s chan=%d ht=%d)\n",
wiphy_name(aphy->hw->wiphy),
ath_wiphy_state_str(aphy->state),
aphy->chan_idx, aphy->chan_is_ht);
}
put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_STA_ID0), addr);
put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4);
len += snprintf(buf + len, sizeof(buf) - len,
"addr: %pM\n", addr);
put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_BSSMSKL), addr);
put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_BSSMSKU) & 0xffff, addr + 4);
len += snprintf(buf + len, sizeof(buf) - len,
"addrmask: %pM\n", addr);
if (len > sizeof(buf))
len = sizeof(buf);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static struct ath_wiphy * get_wiphy(struct ath_softc *sc, const char *name)
{
int i;
if (strcmp(name, wiphy_name(sc->pri_wiphy->hw->wiphy)) == 0)
return sc->pri_wiphy;
for (i = 0; i < sc->num_sec_wiphy; i++) {
struct ath_wiphy *aphy = sc->sec_wiphy[i];
if (aphy && strcmp(name, wiphy_name(aphy->hw->wiphy)) == 0)
return aphy;
}
return NULL;
}
static int del_wiphy(struct ath_softc *sc, const char *name)
{
struct ath_wiphy *aphy = get_wiphy(sc, name);
if (!aphy)
return -ENOENT;
return ath9k_wiphy_del(aphy);
}
static int pause_wiphy(struct ath_softc *sc, const char *name)
{
struct ath_wiphy *aphy = get_wiphy(sc, name);
if (!aphy)
return -ENOENT;
return ath9k_wiphy_pause(aphy);
}
static int unpause_wiphy(struct ath_softc *sc, const char *name)
{
struct ath_wiphy *aphy = get_wiphy(sc, name);
if (!aphy)
return -ENOENT;
return ath9k_wiphy_unpause(aphy);
}
static int select_wiphy(struct ath_softc *sc, const char *name)
{
struct ath_wiphy *aphy = get_wiphy(sc, name);
if (!aphy)
return -ENOENT;
return ath9k_wiphy_select(aphy);
}
static int schedule_wiphy(struct ath_softc *sc, const char *msec)
{
ath9k_wiphy_set_scheduler(sc, simple_strtoul(msec, NULL, 0));
return 0;
}
static ssize_t write_file_wiphy(struct file *file, const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath_softc *sc = file->private_data;
char buf[50];
size_t len;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
if (len > 0 && buf[len - 1] == '\n')
buf[len - 1] = '\0';
if (strncmp(buf, "add", 3) == 0) {
int res = ath9k_wiphy_add(sc);
if (res < 0)
return res;
} else if (strncmp(buf, "del=", 4) == 0) {
int res = del_wiphy(sc, buf + 4);
if (res < 0)
return res;
} else if (strncmp(buf, "pause=", 6) == 0) {
int res = pause_wiphy(sc, buf + 6);
if (res < 0)
return res;
} else if (strncmp(buf, "unpause=", 8) == 0) {
int res = unpause_wiphy(sc, buf + 8);
if (res < 0)
return res;
} else if (strncmp(buf, "select=", 7) == 0) {
int res = select_wiphy(sc, buf + 7);
if (res < 0)
return res;
} else if (strncmp(buf, "schedule=", 9) == 0) {
int res = schedule_wiphy(sc, buf + 9);
if (res < 0)
return res;
} else
return -EOPNOTSUPP;
return count;
}
static const struct file_operations fops_wiphy = {
.read = read_file_wiphy,
.write = write_file_wiphy,
.open = ath9k_debugfs_open,
.owner = THIS_MODULE
};
#define PR(str, elem) \
do { \
len += snprintf(buf + len, size - len, \
"%s%13u%11u%10u%10u\n", str, \
sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_BE]].elem, \
sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_BK]].elem, \
sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_VI]].elem, \
sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_VO]].elem); \
} while(0)
static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath_softc *sc = file->private_data;
char *buf;
unsigned int len = 0, size = 2048;
ssize_t retval = 0;
buf = kzalloc(size, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
len += sprintf(buf, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO");
PR("MPDUs Queued: ", queued);
PR("MPDUs Completed: ", completed);
PR("Aggregates: ", a_aggr);
PR("AMPDUs Queued: ", a_queued);
PR("AMPDUs Completed:", a_completed);
PR("AMPDUs Retried: ", a_retries);
PR("AMPDUs XRetried: ", a_xretries);
PR("FIFO Underrun: ", fifo_underrun);
PR("TXOP Exceeded: ", xtxop);
PR("TXTIMER Expiry: ", timer_exp);
PR("DESC CFG Error: ", desc_cfg_err);
PR("DATA Underrun: ", data_underrun);
PR("DELIM Underrun: ", delim_underrun);
if (len > size)
len = size;
retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
kfree(buf);
return retval;
}
void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
struct ath_buf *bf, struct ath_tx_status *ts)
{
if (bf_isampdu(bf)) {
if (bf_isxretried(bf))
TX_STAT_INC(txq->axq_qnum, a_xretries);
else
TX_STAT_INC(txq->axq_qnum, a_completed);
} else {
TX_STAT_INC(txq->axq_qnum, completed);
}
if (ts->ts_status & ATH9K_TXERR_FIFO)
TX_STAT_INC(txq->axq_qnum, fifo_underrun);
if (ts->ts_status & ATH9K_TXERR_XTXOP)
TX_STAT_INC(txq->axq_qnum, xtxop);
if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
TX_STAT_INC(txq->axq_qnum, timer_exp);
if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
TX_STAT_INC(txq->axq_qnum, desc_cfg_err);
if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
TX_STAT_INC(txq->axq_qnum, data_underrun);
if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
TX_STAT_INC(txq->axq_qnum, delim_underrun);
}
static const struct file_operations fops_xmit = {
.read = read_file_xmit,
.open = ath9k_debugfs_open,
.owner = THIS_MODULE
};
static ssize_t read_file_recv(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
#define PHY_ERR(s, p) \
len += snprintf(buf + len, size - len, "%18s : %10u\n", s, \
sc->debug.stats.rxstats.phy_err_stats[p]);
struct ath_softc *sc = file->private_data;
char *buf;
unsigned int len = 0, size = 1152;
ssize_t retval = 0;
buf = kzalloc(size, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
len += snprintf(buf + len, size - len,
"%18s : %10u\n", "CRC ERR",
sc->debug.stats.rxstats.crc_err);
len += snprintf(buf + len, size - len,
"%18s : %10u\n", "DECRYPT CRC ERR",
sc->debug.stats.rxstats.decrypt_crc_err);
len += snprintf(buf + len, size - len,
"%18s : %10u\n", "PHY ERR",
sc->debug.stats.rxstats.phy_err);
len += snprintf(buf + len, size - len,
"%18s : %10u\n", "MIC ERR",
sc->debug.stats.rxstats.mic_err);
len += snprintf(buf + len, size - len,
"%18s : %10u\n", "PRE-DELIM CRC ERR",
sc->debug.stats.rxstats.pre_delim_crc_err);
len += snprintf(buf + len, size - len,
"%18s : %10u\n", "POST-DELIM CRC ERR",
sc->debug.stats.rxstats.post_delim_crc_err);
len += snprintf(buf + len, size - len,
"%18s : %10u\n", "DECRYPT BUSY ERR",
sc->debug.stats.rxstats.decrypt_busy_err);
PHY_ERR("UNDERRUN", ATH9K_PHYERR_UNDERRUN);
PHY_ERR("TIMING", ATH9K_PHYERR_TIMING);
PHY_ERR("PARITY", ATH9K_PHYERR_PARITY);
PHY_ERR("RATE", ATH9K_PHYERR_RATE);
PHY_ERR("LENGTH", ATH9K_PHYERR_LENGTH);
PHY_ERR("RADAR", ATH9K_PHYERR_RADAR);
PHY_ERR("SERVICE", ATH9K_PHYERR_SERVICE);
PHY_ERR("TOR", ATH9K_PHYERR_TOR);
PHY_ERR("OFDM-TIMING", ATH9K_PHYERR_OFDM_TIMING);
PHY_ERR("OFDM-SIGNAL-PARITY", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
PHY_ERR("OFDM-RATE", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
PHY_ERR("OFDM-LENGTH", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
PHY_ERR("OFDM-POWER-DROP", ATH9K_PHYERR_OFDM_POWER_DROP);
PHY_ERR("OFDM-SERVICE", ATH9K_PHYERR_OFDM_SERVICE);
PHY_ERR("OFDM-RESTART", ATH9K_PHYERR_OFDM_RESTART);
PHY_ERR("FALSE-RADAR-EXT", ATH9K_PHYERR_FALSE_RADAR_EXT);
PHY_ERR("CCK-TIMING", ATH9K_PHYERR_CCK_TIMING);
PHY_ERR("CCK-HEADER-CRC", ATH9K_PHYERR_CCK_HEADER_CRC);
PHY_ERR("CCK-RATE", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
PHY_ERR("CCK-SERVICE", ATH9K_PHYERR_CCK_SERVICE);
PHY_ERR("CCK-RESTART", ATH9K_PHYERR_CCK_RESTART);
PHY_ERR("CCK-LENGTH", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
PHY_ERR("CCK-POWER-DROP", ATH9K_PHYERR_CCK_POWER_DROP);
PHY_ERR("HT-CRC", ATH9K_PHYERR_HT_CRC_ERROR);
PHY_ERR("HT-LENGTH", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
PHY_ERR("HT-RATE", ATH9K_PHYERR_HT_RATE_ILLEGAL);
if (len > size)
len = size;
retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
kfree(buf);
return retval;
#undef PHY_ERR
}
void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
{
#define RX_STAT_INC(c) sc->debug.stats.rxstats.c++
#define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
u32 phyerr;
if (rs->rs_status & ATH9K_RXERR_CRC)
RX_STAT_INC(crc_err);
if (rs->rs_status & ATH9K_RXERR_DECRYPT)
RX_STAT_INC(decrypt_crc_err);
if (rs->rs_status & ATH9K_RXERR_MIC)
RX_STAT_INC(mic_err);
if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
RX_STAT_INC(pre_delim_crc_err);
if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
RX_STAT_INC(post_delim_crc_err);
if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
RX_STAT_INC(decrypt_busy_err);
if (rs->rs_status & ATH9K_RXERR_PHY) {
RX_STAT_INC(phy_err);
phyerr = rs->rs_phyerr & 0x24;
RX_PHY_ERR_INC(phyerr);
}
#undef RX_STAT_INC
#undef RX_PHY_ERR_INC
}
static const struct file_operations fops_recv = {
.read = read_file_recv,
.open = ath9k_debugfs_open,
.owner = THIS_MODULE
};
static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath_softc *sc = file->private_data;
char buf[32];
unsigned int len;
len = sprintf(buf, "0x%08x\n", sc->debug.regidx);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath_softc *sc = file->private_data;
unsigned long regidx;
char buf[32];
ssize_t len;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
if (strict_strtoul(buf, 0, &regidx))
return -EINVAL;
sc->debug.regidx = regidx;
return count;
}
static const struct file_operations fops_regidx = {
.read = read_file_regidx,
.write = write_file_regidx,
.open = ath9k_debugfs_open,
.owner = THIS_MODULE
};
static ssize_t read_file_regval(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath_softc *sc = file->private_data;
struct ath_hw *ah = sc->sc_ah;
char buf[32];
unsigned int len;
u32 regval;
regval = REG_READ_D(ah, sc->debug.regidx);
len = sprintf(buf, "0x%08x\n", regval);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath_softc *sc = file->private_data;
struct ath_hw *ah = sc->sc_ah;
unsigned long regval;
char buf[32];
ssize_t len;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
if (strict_strtoul(buf, 0, &regval))
return -EINVAL;
REG_WRITE_D(ah, sc->debug.regidx, regval);
return count;
}
static const struct file_operations fops_regval = {
.read = read_file_regval,
.write = write_file_regval,
.open = ath9k_debugfs_open,
.owner = THIS_MODULE
};
int ath9k_init_debug(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
struct ath_softc *sc = (struct ath_softc *) common->priv;
if (!ath9k_debugfs_root)
return -ENOENT;
sc->debug.debugfs_phy = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
ath9k_debugfs_root);
if (!sc->debug.debugfs_phy)
return -ENOMEM;
#ifdef CONFIG_ATH_DEBUG
if (!debugfs_create_file("debug", S_IRUSR | S_IWUSR,
sc->debug.debugfs_phy, sc, &fops_debug))
goto err;
#endif
if (!debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy,
sc, &fops_dma))
goto err;
if (!debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy,
sc, &fops_interrupt))
goto err;
if (!debugfs_create_file("rcstat", S_IRUSR, sc->debug.debugfs_phy,
sc, &fops_rcstat))
goto err;
if (!debugfs_create_file("wiphy", S_IRUSR | S_IWUSR,
sc->debug.debugfs_phy, sc, &fops_wiphy))
goto err;
if (!debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy,
sc, &fops_xmit))
goto err;
if (!debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy,
sc, &fops_recv))
goto err;
if (!debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
sc->debug.debugfs_phy, sc, &fops_rx_chainmask))
goto err;
if (!debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
sc->debug.debugfs_phy, sc, &fops_tx_chainmask))
goto err;
if (!debugfs_create_file("regidx", S_IRUSR | S_IWUSR,
sc->debug.debugfs_phy, sc, &fops_regidx))
goto err;
if (!debugfs_create_file("regval", S_IRUSR | S_IWUSR,
sc->debug.debugfs_phy, sc, &fops_regval))
goto err;
if (!debugfs_create_bool("ignore_extcca", S_IRUSR | S_IWUSR,
sc->debug.debugfs_phy, &ah->config.cwm_ignore_extcca))
goto err;
sc->debug.regidx = 0;
return 0;
err:
ath9k_exit_debug(ah);
return -ENOMEM;
}
void ath9k_exit_debug(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
struct ath_softc *sc = (struct ath_softc *) common->priv;
debugfs_remove_recursive(sc->debug.debugfs_phy);
}
int ath9k_debug_create_root(void)
{
ath9k_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
if (!ath9k_debugfs_root)
return -ENOENT;
return 0;
}
void ath9k_debug_remove_root(void)
{
debugfs_remove(ath9k_debugfs_root);
ath9k_debugfs_root = NULL;
}
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