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Commit 631bee25 authored by Arend van Spriel's avatar Arend van Spriel Committed by Greg Kroah-Hartman
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ath: use seq_file api for ath9k debugfs files 

The debugfs files that are defined in debug.c which are read-only
and using a simple_open as .open file operation have been modified
to use the single_open seq_file API. This simplifies the read
functions defining the file contents.
Signed-off-by: default avatarArend van Spriel <arend@broadcom.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 98210b7f
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Inline Side-by-side
Showing with 192 additions and 274 deletions
drivers/net/wireless/ath/ath9k/debug.c
View file @ 631bee25
......@@ -401,22 +401,14 @@ static const struct file_operations fops_antenna_diversity = {
.llseek = default_llseek,
};
static ssize_t read_file_dma(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
static int read_file_dma(struct seq_file *file, void *data)
{
struct ath_softc *sc = file->private_data;
struct ath_softc *sc = file->private;
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,
......@@ -424,21 +416,18 @@ static ssize_t read_file_dma(struct file *file, char __user *user_buf,
(AR_MACMISC_MISC_OBS_BUS_1 <<
AR_MACMISC_MISC_OBS_BUS_MSB_S)));
len += scnprintf(buf + len, DMA_BUF_LEN - len,
"Raw DMA Debug values:\n");
seq_puts(file, "Raw DMA Debug values:\n");
for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
if (i % 4 == 0)
len += scnprintf(buf + len, DMA_BUF_LEN - len, "\n");
seq_puts(file, "\n");
val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32)));
len += scnprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ",
i, val[i]);
seq_printf(file, "%d: %08x ", i, val[i]);
}
len += scnprintf(buf + len, DMA_BUF_LEN - len, "\n\n");
len += scnprintf(buf + len, DMA_BUF_LEN - len,
"Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
seq_puts(file, "\n\n");
seq_puts(file, "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) {
......@@ -451,55 +440,47 @@ static ssize_t read_file_dma(struct file *file, char __user *user_buf,
dcuBase++;
}
len += scnprintf(buf + len, DMA_BUF_LEN - len,
"%2d %2x %1x %2x %2x\n",
seq_printf(file, "%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 += scnprintf(buf + len, DMA_BUF_LEN - len, "\n");
seq_puts(file, "\n");
len += scnprintf(buf + len, DMA_BUF_LEN - len,
"qcu_stitch state: %2x qcu_fetch state: %2x\n",
seq_printf(file, "qcu_stitch state: %2x qcu_fetch state: %2x\n",
(val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
len += scnprintf(buf + len, DMA_BUF_LEN - len,
"qcu_complete state: %2x dcu_complete state: %2x\n",
seq_printf(file, "qcu_complete state: %2x dcu_complete state: %2x\n",
(val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
len += scnprintf(buf + len, DMA_BUF_LEN - len,
"dcu_arb state: %2x dcu_fp state: %2x\n",
seq_printf(file, "dcu_arb state: %2x dcu_fp state: %2x\n",
(val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
len += scnprintf(buf + len, DMA_BUF_LEN - len,
"chan_idle_dur: %3d chan_idle_dur_valid: %1d\n",
seq_printf(file, "chan_idle_dur: %3d chan_idle_dur_valid: %1d\n",
(val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
len += scnprintf(buf + len, DMA_BUF_LEN - len,
"txfifo_valid_0: %1d txfifo_valid_1: %1d\n",
seq_printf(file, "txfifo_valid_0: %1d txfifo_valid_1: %1d\n",
(val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
len += scnprintf(buf + len, DMA_BUF_LEN - len,
"txfifo_dcu_num_0: %2d txfifo_dcu_num_1: %2d\n",
seq_printf(file, "txfifo_dcu_num_0: %2d txfifo_dcu_num_1: %2d\n",
(val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
len += scnprintf(buf + len, DMA_BUF_LEN - len, "pcu observe: 0x%x\n",
REG_READ_D(ah, AR_OBS_BUS_1));
len += scnprintf(buf + len, DMA_BUF_LEN - len,
"AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
seq_printf(file, "pcu observe: 0x%x\n", REG_READ_D(ah, AR_OBS_BUS_1));
seq_printf(file, "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
ath9k_ps_restore(sc);
if (len > DMA_BUF_LEN)
len = DMA_BUF_LEN;
return 0;
}
retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
kfree(buf);
return retval;
static int open_file_dma(struct inode *inode, struct file *f)
{
return single_open(f, read_file_dma, inode->i_private);
}
static const struct file_operations fops_dma = {
.read = read_file_dma,
.open = simple_open,
.open = open_file_dma,
.read = seq_read,
.owner = THIS_MODULE,
.llseek = default_llseek,
.llseek = seq_lseek,
.release = single_release,
};
......@@ -556,21 +537,13 @@ void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
sc->debug.stats.istats.gen_timer++;
}
static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
static int read_file_interrupt(struct seq_file *file, void *data)
{
struct ath_softc *sc = file->private_data;
unsigned int len = 0;
int rv;
int mxlen = 4000;
char *buf = kmalloc(mxlen, GFP_KERNEL);
if (!buf)
return -ENOMEM;
struct ath_softc *sc = file->private;
#define PR_IS(a, s) \
do { \
len += scnprintf(buf + len, mxlen - len, \
"%21s: %10u\n", a, \
seq_printf(file, "%21s: %10u\n", a, \
sc->debug.stats.istats.s); \
} while (0)
......@@ -602,8 +575,7 @@ static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
PR_IS("GENTIMER", gen_timer);
PR_IS("TOTAL", total);
len += scnprintf(buf + len, mxlen - len,
"SYNC_CAUSE stats:\n");
seq_puts(file, "SYNC_CAUSE stats:\n");
PR_IS("Sync-All", sync_cause_all);
PR_IS("RTC-IRQ", sync_rtc_irq);
......@@ -625,35 +597,27 @@ static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
PR_IS("MAC-Asleep", mac_asleep);
PR_IS("MAC-Sleep-Access", mac_sleep_access);
if (len > mxlen)
len = mxlen;
return 0;
}
rv = simple_read_from_buffer(user_buf, count, ppos, buf, len);
kfree(buf);
return rv;
static int open_file_interrupt(struct inode *inode, struct file *f)
{
return single_open(f, read_file_interrupt, inode->i_private);
}
static const struct file_operations fops_interrupt = {
.read = read_file_interrupt,
.open = simple_open,
.read = seq_read,
.open = open_file_interrupt,
.owner = THIS_MODULE,
.llseek = default_llseek,
.llseek = seq_lseek,
.release = single_release,
};
static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
static int read_file_xmit(struct seq_file *file, void *data)
{
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;
struct ath_softc *sc = file->private;
len += sprintf(buf, "%30s %10s%10s%10s\n\n",
"BE", "BK", "VI", "VO");
seq_printf(file, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO");
PR("MPDUs Queued: ", queued);
PR("MPDUs Completed: ", completed);
......@@ -678,153 +642,115 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
PR("HW-tx-proc-desc: ", txprocdesc);
PR("TX-Failed: ", txfailed);
if (len > size)
len = size;
retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
kfree(buf);
return retval;
return 0;
}
static ssize_t print_queue(struct ath_softc *sc, struct ath_txq *txq,
char *buf, ssize_t size)
static void print_queue(struct ath_softc *sc, struct ath_txq *txq,
struct seq_file *file)
{
ssize_t len = 0;
ath_txq_lock(sc, txq);
len += scnprintf(buf + len, size - len, "%s: %d ",
"qnum", txq->axq_qnum);
len += scnprintf(buf + len, size - len, "%s: %2d ",
"qdepth", txq->axq_depth);
len += scnprintf(buf + len, size - len, "%s: %2d ",
"ampdu-depth", txq->axq_ampdu_depth);
len += scnprintf(buf + len, size - len, "%s: %3d ",
"pending", txq->pending_frames);
len += scnprintf(buf + len, size - len, "%s: %d\n",
"stopped", txq->stopped);
seq_printf(file, "%s: %d ", "qnum", txq->axq_qnum);
seq_printf(file, "%s: %2d ", "qdepth", txq->axq_depth);
seq_printf(file, "%s: %2d ", "ampdu-depth", txq->axq_ampdu_depth);
seq_printf(file, "%s: %3d ", "pending", txq->pending_frames);
seq_printf(file, "%s: %d\n", "stopped", txq->stopped);
ath_txq_unlock(sc, txq);
return len;
}
static ssize_t read_file_queues(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
static int read_file_queues(struct seq_file *file, void *data)
{
struct ath_softc *sc = file->private_data;
struct ath_softc *sc = file->private;
struct ath_txq *txq;
char *buf;
unsigned int len = 0;
const unsigned int size = 1024;
ssize_t retval = 0;
int i;
static const char *qname[4] = {
"VO", "VI", "BE", "BK"
};
buf = kzalloc(size, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
for (i = 0; i < IEEE80211_NUM_ACS; i++) {
txq = sc->tx.txq_map[i];
len += scnprintf(buf + len, size - len, "(%s): ", qname[i]);
len += print_queue(sc, txq, buf + len, size - len);
seq_printf(file, "(%s): ", qname[i]);
print_queue(sc, txq, file);
}
len += scnprintf(buf + len, size - len, "(CAB): ");
len += print_queue(sc, sc->beacon.cabq, buf + len, size - len);
seq_puts(file, "(CAB): ");
print_queue(sc, sc->beacon.cabq, file);
if (len > size)
len = size;
retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
kfree(buf);
return retval;
return 0;
}
static ssize_t read_file_misc(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
static int read_file_misc(struct seq_file *file, void *data)
{
struct ath_softc *sc = file->private_data;
struct ath_softc *sc = file->private;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath9k_vif_iter_data iter_data;
struct ath_chanctx *ctx;
char buf[512];
unsigned int len = 0;
ssize_t retval = 0;
unsigned int reg;
u32 rxfilter, i;
len += scnprintf(buf + len, sizeof(buf) - len,
"BSSID: %pM\n", common->curbssid);
len += scnprintf(buf + len, sizeof(buf) - len,
"BSSID-MASK: %pM\n", common->bssidmask);
len += scnprintf(buf + len, sizeof(buf) - len,
"OPMODE: %s\n",
seq_printf(file, "BSSID: %pM\n", common->curbssid);
seq_printf(file, "BSSID-MASK: %pM\n", common->bssidmask);
seq_printf(file, "OPMODE: %s\n",
ath_opmode_to_string(sc->sc_ah->opmode));
ath9k_ps_wakeup(sc);
rxfilter = ath9k_hw_getrxfilter(sc->sc_ah);
ath9k_ps_restore(sc);
len += scnprintf(buf + len, sizeof(buf) - len,
"RXFILTER: 0x%x", rxfilter);
seq_printf(file, "RXFILTER: 0x%x", rxfilter);
if (rxfilter & ATH9K_RX_FILTER_UCAST)
len += scnprintf(buf + len, sizeof(buf) - len, " UCAST");
seq_puts(file, " UCAST");
if (rxfilter & ATH9K_RX_FILTER_MCAST)
len += scnprintf(buf + len, sizeof(buf) - len, " MCAST");
seq_puts(file, " MCAST");
if (rxfilter & ATH9K_RX_FILTER_BCAST)
len += scnprintf(buf + len, sizeof(buf) - len, " BCAST");
seq_puts(file, " BCAST");
if (rxfilter & ATH9K_RX_FILTER_CONTROL)
len += scnprintf(buf + len, sizeof(buf) - len, " CONTROL");
seq_puts(file, " CONTROL");
if (rxfilter & ATH9K_RX_FILTER_BEACON)
len += scnprintf(buf + len, sizeof(buf) - len, " BEACON");
seq_puts(file, " BEACON");
if (rxfilter & ATH9K_RX_FILTER_PROM)
len += scnprintf(buf + len, sizeof(buf) - len, " PROM");
seq_puts(file, " PROM");
if (rxfilter & ATH9K_RX_FILTER_PROBEREQ)
len += scnprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
seq_puts(file, " PROBEREQ");
if (rxfilter & ATH9K_RX_FILTER_PHYERR)
len += scnprintf(buf + len, sizeof(buf) - len, " PHYERR");
seq_puts(file, " PHYERR");
if (rxfilter & ATH9K_RX_FILTER_MYBEACON)
len += scnprintf(buf + len, sizeof(buf) - len, " MYBEACON");
seq_puts(file, " MYBEACON");
if (rxfilter & ATH9K_RX_FILTER_COMP_BAR)
len += scnprintf(buf + len, sizeof(buf) - len, " COMP_BAR");
seq_puts(file, " COMP_BAR");
if (rxfilter & ATH9K_RX_FILTER_PSPOLL)
len += scnprintf(buf + len, sizeof(buf) - len, " PSPOLL");
seq_puts(file, " PSPOLL");
if (rxfilter & ATH9K_RX_FILTER_PHYRADAR)
len += scnprintf(buf + len, sizeof(buf) - len, " PHYRADAR");
seq_puts(file, " PHYRADAR");
if (rxfilter & ATH9K_RX_FILTER_MCAST_BCAST_ALL)
len += scnprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL");
seq_puts(file, " MCAST_BCAST_ALL");
if (rxfilter & ATH9K_RX_FILTER_CONTROL_WRAPPER)
len += scnprintf(buf + len, sizeof(buf) - len, " CONTROL_WRAPPER");
seq_puts(file, " CONTROL_WRAPPER");
len += scnprintf(buf + len, sizeof(buf) - len, "\n");
seq_puts(file, "\n");
reg = sc->sc_ah->imask;
len += scnprintf(buf + len, sizeof(buf) - len,
"INTERRUPT-MASK: 0x%x", reg);
seq_printf(file, "INTERRUPT-MASK: 0x%x", reg);
if (reg & ATH9K_INT_SWBA)
len += scnprintf(buf + len, sizeof(buf) - len, " SWBA");
seq_puts(file, " SWBA");
if (reg & ATH9K_INT_BMISS)
len += scnprintf(buf + len, sizeof(buf) - len, " BMISS");
seq_puts(file, " BMISS");
if (reg & ATH9K_INT_CST)
len += scnprintf(buf + len, sizeof(buf) - len, " CST");
seq_puts(file, " CST");
if (reg & ATH9K_INT_RX)
len += scnprintf(buf + len, sizeof(buf) - len, " RX");
seq_puts(file, " RX");
if (reg & ATH9K_INT_RXHP)
len += scnprintf(buf + len, sizeof(buf) - len, " RXHP");
seq_puts(file, " RXHP");
if (reg & ATH9K_INT_RXLP)
len += scnprintf(buf + len, sizeof(buf) - len, " RXLP");
seq_puts(file, " RXLP");
if (reg & ATH9K_INT_BB_WATCHDOG)
len += scnprintf(buf + len, sizeof(buf) - len, " BB_WATCHDOG");
seq_puts(file, " BB_WATCHDOG");
len += scnprintf(buf + len, sizeof(buf) - len, "\n");
seq_puts(file, "\n");
i = 0;
ath_for_each_chanctx(sc, ctx) {
......@@ -832,61 +758,42 @@ static ssize_t read_file_misc(struct file *file, char __user *user_buf,
continue;
ath9k_calculate_iter_data(sc, ctx, &iter_data);
len += scnprintf(buf + len, sizeof(buf) - len,
seq_printf(file,
"VIF-COUNTS: CTX %i AP: %i STA: %i MESH: %i WDS: %i",
i++, iter_data.naps, iter_data.nstations,
iter_data.nmeshes, iter_data.nwds);
len += scnprintf(buf + len, sizeof(buf) - len,
" ADHOC: %i TOTAL: %hi BEACON-VIF: %hi\n",
iter_data.nadhocs, sc->cur_chan->nvifs, sc->nbcnvifs);
seq_printf(file, " ADHOC: %i TOTAL: %hi BEACON-VIF: %hi\n",
iter_data.nadhocs, sc->cur_chan->nvifs,
sc->nbcnvifs);
}
if (len > sizeof(buf))
len = sizeof(buf);
retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
return retval;
return 0;
}
static ssize_t read_file_reset(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
static int read_file_reset(struct seq_file *file, void *data)
{
struct ath_softc *sc = file->private_data;
char buf[512];
unsigned int len = 0;
struct ath_softc *sc = file->private;
len += scnprintf(buf + len, sizeof(buf) - len,
"%17s: %2d\n", "Baseband Hang",
seq_printf(file, "%17s: %2d\n", "Baseband Hang",
sc->debug.stats.reset[RESET_TYPE_BB_HANG]);
len += scnprintf(buf + len, sizeof(buf) - len,
"%17s: %2d\n", "Baseband Watchdog",
seq_printf(file, "%17s: %2d\n", "Baseband Watchdog",
sc->debug.stats.reset[RESET_TYPE_BB_WATCHDOG]);
len += scnprintf(buf + len, sizeof(buf) - len,
"%17s: %2d\n", "Fatal HW Error",
seq_printf(file, "%17s: %2d\n", "Fatal HW Error",
sc->debug.stats.reset[RESET_TYPE_FATAL_INT]);
len += scnprintf(buf + len, sizeof(buf) - len,
"%17s: %2d\n", "TX HW error",
seq_printf(file, "%17s: %2d\n", "TX HW error",
sc->debug.stats.reset[RESET_TYPE_TX_ERROR]);
len += scnprintf(buf + len, sizeof(buf) - len,
"%17s: %2d\n", "TX Path Hang",
seq_printf(file, "%17s: %2d\n", "TX Path Hang",
sc->debug.stats.reset[RESET_TYPE_TX_HANG]);
len += scnprintf(buf + len, sizeof(buf) - len,
"%17s: %2d\n", "PLL RX Hang",
seq_printf(file, "%17s: %2d\n", "PLL RX Hang",
sc->debug.stats.reset[RESET_TYPE_PLL_HANG]);
len += scnprintf(buf + len, sizeof(buf) - len,
"%17s: %2d\n", "MAC Hang",
seq_printf(file, "%17s: %2d\n", "MAC Hang",
sc->debug.stats.reset[RESET_TYPE_MAC_HANG]);
len += scnprintf(buf + len, sizeof(buf) - len,
"%17s: %2d\n", "Stuck Beacon",
seq_printf(file, "%17s: %2d\n", "Stuck Beacon",
sc->debug.stats.reset[RESET_TYPE_BEACON_STUCK]);
len += scnprintf(buf + len, sizeof(buf) - len,
"%17s: %2d\n", "MCI Reset",
seq_printf(file, "%17s: %2d\n", "MCI Reset",
sc->debug.stats.reset[RESET_TYPE_MCI]);
if (len > sizeof(buf))
len = sizeof(buf);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
return 0;
}
void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
......@@ -926,32 +833,56 @@ void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
TX_STAT_INC(qnum, delim_underrun);
}
static int open_file_xmit(struct inode *inode, struct file *f)
{
return single_open(f, read_file_xmit, inode->i_private);
}
static const struct file_operations fops_xmit = {
.read = read_file_xmit,
.open = simple_open,
.read = seq_read,
.open = open_file_xmit,
.owner = THIS_MODULE,
.llseek = default_llseek,
.llseek = seq_lseek,
.release = single_release,
};
static int open_file_queues(struct inode *inode, struct file *f)
{
return single_open(f, read_file_queues, inode->i_private);
}
static const struct file_operations fops_queues = {
.read = read_file_queues,
.open = simple_open,
.read = seq_read,
.open = open_file_queues,
.owner = THIS_MODULE,
.llseek = default_llseek,
.llseek = seq_lseek,
.release = single_release,
};
static int open_file_misc(struct inode *inode, struct file *f)
{
return single_open(f, read_file_misc, inode->i_private);
}
static const struct file_operations fops_misc = {
.read = read_file_misc,
.open = simple_open,
.read = seq_read,
.open = open_file_misc,
.owner = THIS_MODULE,
.llseek = default_llseek,
.llseek = seq_lseek,
.release = single_release,
};
static int open_file_reset(struct inode *inode, struct file *f)
{
return single_open(f, read_file_reset, inode->i_private);
}
static const struct file_operations fops_reset = {
.read = read_file_reset,
.open = simple_open,
.read = seq_read,
.open = open_file_reset,
.owner = THIS_MODULE,
.llseek = default_llseek,
.llseek = seq_lseek,
.release = single_release,
};
void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
......@@ -1081,57 +1012,45 @@ static const struct file_operations fops_regdump = {
.llseek = default_llseek,/* read accesses f_pos */
};
static ssize_t read_file_dump_nfcal(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
static int read_file_dump_nfcal(struct seq_file *file, void *data)
{
struct ath_softc *sc = file->private_data;
struct ath_softc *sc = file->private;
struct ath_hw *ah = sc->sc_ah;
struct ath9k_nfcal_hist *h = sc->cur_chan->caldata.nfCalHist;
struct ath_common *common = ath9k_hw_common(ah);
struct ieee80211_conf *conf = &common->hw->conf;
u32 len = 0, size = 1500;
u32 i, j;
ssize_t retval = 0;
char *buf;
u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
u8 nread;
buf = kzalloc(size, GFP_KERNEL);
if (!buf)
return -ENOMEM;
len += scnprintf(buf + len, size - len,
"Channel Noise Floor : %d\n", ah->noise);
len += scnprintf(buf + len, size - len,
"Chain | privNF | # Readings | NF Readings\n");
seq_printf(file, "Channel Noise Floor : %d\n", ah->noise);
seq_puts(file, "Chain | privNF | # Readings | NF Readings\n");
for (i = 0; i < NUM_NF_READINGS; i++) {
if (!(chainmask & (1 << i)) ||
((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
continue;
nread = AR_PHY_CCA_FILTERWINDOW_LENGTH - h[i].invalidNFcount;
len += scnprintf(buf + len, size - len, " %d\t %d\t %d\t\t",
i, h[i].privNF, nread);
seq_printf(file, " %d\t %d\t %d\t\t", i, h[i].privNF, nread);
for (j = 0; j < nread; j++)
len += scnprintf(buf + len, size - len,
" %d", h[i].nfCalBuffer[j]);
len += scnprintf(buf + len, size - len, "\n");
seq_printf(file, " %d", h[i].nfCalBuffer[j]);
seq_puts(file, "\n");
}
if (len > size)
len = size;
retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
kfree(buf);
return 0;
}
return retval;
static int open_file_dump_nfcal(struct inode *inode, struct file *f)
{
return single_open(f, read_file_dump_nfcal, inode->i_private);
}
static const struct file_operations fops_dump_nfcal = {
.read = read_file_dump_nfcal,
.open = simple_open,
.read = seq_read,
.open = open_file_dump_nfcal,
.owner = THIS_MODULE,
.llseek = default_llseek,
.llseek = seq_lseek,
.release = single_release,
};
#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
......
drivers/net/wireless/ath/ath9k/debug.h
View file @ 631bee25
......@@ -195,8 +195,7 @@ struct ath_tx_stats {
#define TXSTATS sc->debug.stats.txstats
#define PR(str, elem) \
do { \
len += scnprintf(buf + len, size - len, \
"%s%13u%11u%10u%10u\n", str, \
seq_printf(file, "%s%13u%11u%10u%10u\n", str, \
TXSTATS[PR_QNUM(IEEE80211_AC_BE)].elem,\
TXSTATS[PR_QNUM(IEEE80211_AC_BK)].elem,\
TXSTATS[PR_QNUM(IEEE80211_AC_VI)].elem,\
......
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