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Commit 6e4d291e authored by Sujith Manoharan's avatar Sujith Manoharan Committed by John W. Linville
Browse files

ath9k: Print ANI statistics in debugfs 



Signed-off-by: default avatarSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 4f4395c6

drivers/net/wireless/ath/ath9k/ani.h

+0 −2
Original line number Diff line number Diff line
@@ -111,8 +111,6 @@ struct ar5416AniState { 
};



struct ar5416Stats {

	u32 ast_ani_niup;

	u32 ast_ani_nidown;

	u32 ast_ani_spurup;

	u32 ast_ani_spurdown;

	u32 ast_ani_ofdmon;

drivers/net/wireless/ath/ath9k/debug.c

+64 −17
Original line number Diff line number Diff line
@@ -173,25 +173,69 @@ static const struct file_operations fops_rx_chainmask = { 
	.llseek = default_llseek,

};



static ssize_t read_file_disable_ani(struct file *file, char __user *user_buf,

static ssize_t read_file_ani(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;

	struct ath_hw *ah = sc->sc_ah;

	unsigned int len = 0, size = 1024;

	ssize_t retval = 0;

	char *buf;



	len = sprintf(buf, "%d\n", common->disable_ani);

	return simple_read_from_buffer(user_buf, count, ppos, buf, len);

	buf = kzalloc(size, GFP_KERNEL);

	if (buf == NULL)

		return -ENOMEM;



	if (common->disable_ani) {

		len += snprintf(buf + len, size - len, "%s: %s\n",

				"ANI", "DISABLED");

		goto exit;

	}



static ssize_t write_file_disable_ani(struct file *file,

	len += snprintf(buf + len, size - len, "%15s: %s\n",

			"ANI", "ENABLED");

	len += snprintf(buf + len, size - len, "%15s: %u\n",

			"ANI RESET", ah->stats.ast_ani_reset);

	len += snprintf(buf + len, size - len, "%15s: %u\n",

			"SPUR UP", ah->stats.ast_ani_spurup);

	len += snprintf(buf + len, size - len, "%15s: %u\n",

			"SPUR DOWN", ah->stats.ast_ani_spurup);

	len += snprintf(buf + len, size - len, "%15s: %u\n",

			"OFDM WS-DET ON", ah->stats.ast_ani_ofdmon);

	len += snprintf(buf + len, size - len, "%15s: %u\n",

			"OFDM WS-DET OFF", ah->stats.ast_ani_ofdmoff);

	len += snprintf(buf + len, size - len, "%15s: %u\n",

			"MRC-CCK ON", ah->stats.ast_ani_ccklow);

	len += snprintf(buf + len, size - len, "%15s: %u\n",

			"MRC-CCK OFF", ah->stats.ast_ani_cckhigh);

	len += snprintf(buf + len, size - len, "%15s: %u\n",

			"FIR-STEP UP", ah->stats.ast_ani_stepup);

	len += snprintf(buf + len, size - len, "%15s: %u\n",

			"FIR-STEP DOWN", ah->stats.ast_ani_stepdown);

	len += snprintf(buf + len, size - len, "%15s: %u\n",

			"INV LISTENTIME", ah->stats.ast_ani_lneg_or_lzero);

	len += snprintf(buf + len, size - len, "%15s: %u\n",

			"OFDM ERRORS", ah->stats.ast_ani_ofdmerrs);

	len += snprintf(buf + len, size - len, "%15s: %u\n",

			"CCK ERRORS", ah->stats.ast_ani_cckerrs);

exit:

	if (len > size)

		len = size;



	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);

	kfree(buf);



	return retval;

}



static ssize_t write_file_ani(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 disable_ani;

	unsigned long ani;

	char buf[32];

	ssize_t len;
@@ -200,12 +244,15 @@ static ssize_t write_file_disable_ani(struct file *file, 
		return -EFAULT;



	buf[len] = '\0';

	if (strict_strtoul(buf, 0, &disable_ani))

	if (strict_strtoul(buf, 0, &ani))

		return -EINVAL;



	if (ani < 0 || ani > 1)

		return -EINVAL;



	common->disable_ani = !!disable_ani;

	common->disable_ani = !ani;



	if (disable_ani) {

	if (common->disable_ani) {

		clear_bit(SC_OP_ANI_RUN, &sc->sc_flags);

		ath_stop_ani(sc);

	} else {
@@ -215,9 +262,9 @@ static ssize_t write_file_disable_ani(struct file *file, 
	return count;

}



static const struct file_operations fops_disable_ani = {

	.read = read_file_disable_ani,

	.write = write_file_disable_ani,

static const struct file_operations fops_ani = {

	.read = read_file_ani,

	.write = write_file_ani,

	.open = simple_open,

	.owner = THIS_MODULE,

	.llseek = default_llseek,
@@ -1719,8 +1766,8 @@ int ath9k_init_debug(struct ath_hw *ah) 
			    sc->debug.debugfs_phy, sc, &fops_rx_chainmask);

	debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,

			    sc->debug.debugfs_phy, sc, &fops_tx_chainmask);

	debugfs_create_file("disable_ani", S_IRUSR | S_IWUSR,

			    sc->debug.debugfs_phy, sc, &fops_disable_ani);

	debugfs_create_file("ani", S_IRUSR | S_IWUSR,

			    sc->debug.debugfs_phy, sc, &fops_ani);

	debugfs_create_bool("paprd", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,

			    &sc->sc_ah->config.enable_paprd);

	debugfs_create_file("regidx", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,