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Commit 40ca22ea authored by Bruno Randolf's avatar Bruno Randolf Committed by John W. Linville
Browse files

ath5k: add sysfs files for ANI parameters 



/sys/class/ieee80211/phy0/device/ani/ani_mode
/sys/class/ieee80211/phy0/device/ani/noise_immunity_level
/sys/class/ieee80211/phy0/device/ani/spur_level
/sys/class/ieee80211/phy0/device/ani/firstep_level
/sys/class/ieee80211/phy0/device/ani/ofdm_weak_signal_detection
/sys/class/ieee80211/phy0/device/ani/cck_weak_signal_detection
/sys/class/ieee80211/phy0/device/ani/noise_immunity_level_max
/sys/class/ieee80211/phy0/device/ani/spur_level_max
/sys/class/ieee80211/phy0/device/ani/firstep_level_max

sysfs has a lot of symlinks, so you can find the files also in other locations,
like (by PCI ID) /sys/devices/pci0000:00/0000:00:11.0/ani and others.

Signed-off-by: default avatarBruno Randolf <br1@einfach.org>
Acked-by: default avatarNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 6673e2e8

drivers/net/wireless/ath/ath5k/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -13,5 +13,6 @@ ath5k-y += base.o 
ath5k-y				+= led.o

ath5k-y				+= rfkill.o

ath5k-y				+= ani.o

ath5k-y				+= sysfs.o

ath5k-$(CONFIG_ATH5K_DEBUG)	+= debug.o

obj-$(CONFIG_ATH5K)		+= ath5k.o

drivers/net/wireless/ath/ath5k/ath5k.h

+3 −0
Original line number Diff line number Diff line
@@ -1150,6 +1150,9 @@ struct ath5k_hw { 
int ath5k_hw_attach(struct ath5k_softc *sc);

void ath5k_hw_detach(struct ath5k_hw *ah);



int ath5k_sysfs_register(struct ath5k_softc *sc);

void ath5k_sysfs_unregister(struct ath5k_softc *sc);



/* LED functions */

int ath5k_init_leds(struct ath5k_softc *sc);

void ath5k_led_enable(struct ath5k_softc *sc);

drivers/net/wireless/ath/ath5k/base.c

+3 −0
Original line number Diff line number Diff line
@@ -862,6 +862,8 @@ ath5k_attach(struct pci_dev *pdev, struct ieee80211_hw *hw) 


	ath5k_init_leds(sc);



	ath5k_sysfs_register(sc);



	return 0;

err_queues:

	ath5k_txq_release(sc);
@@ -897,6 +899,7 @@ ath5k_detach(struct pci_dev *pdev, struct ieee80211_hw *hw) 
	ath5k_hw_release_tx_queue(sc->ah, sc->bhalq);

	ath5k_unregister_leds(sc);



	ath5k_sysfs_unregister(sc);

	/*

	 * NB: can't reclaim these until after ieee80211_ifdetach

	 * returns because we'll get called back to reclaim node

drivers/net/wireless/ath/ath5k/reset.c

+0 −1
Original line number Diff line number Diff line
@@ -850,7 +850,6 @@ static void ath5k_hw_commit_eeprom_settings(struct ath5k_hw *ah, 
			AR5K_PHY_NF_THRESH62,

			ee->ee_thr_62[ee_mode]);





	/* False detect backoff for channels

	 * that have spur noise. Write the new

	 * cyclic power RSSI threshold. */

drivers/net/wireless/ath/ath5k/sysfs.c

0 → 100644
+116 −0
Original line number Diff line number Diff line 
#include <linux/device.h>

#include <linux/pci.h>



#include "base.h"

#include "ath5k.h"

#include "reg.h"



#define SIMPLE_SHOW_STORE(name, get, set)				\

static ssize_t ath5k_attr_show_##name(struct device *dev,		\

			struct device_attribute *attr,			\

			char *buf)					\

{									\

	struct ath5k_softc *sc = dev_get_drvdata(dev);			\

	return snprintf(buf, PAGE_SIZE, "%d\n", get); 			\

}									\

									\

static ssize_t ath5k_attr_store_##name(struct device *dev,		\

			struct device_attribute *attr,			\

			const char *buf, size_t count)			\

{									\

	struct ath5k_softc *sc = dev_get_drvdata(dev);			\

	int val;							\

									\

	val = (int)simple_strtoul(buf, NULL, 10);			\

	set(sc->ah, val);						\

	return count;							\

}									\

static DEVICE_ATTR(name, S_IRUGO | S_IWUSR,				\

		   ath5k_attr_show_##name, ath5k_attr_store_##name)



#define SIMPLE_SHOW(name, get)						\

static ssize_t ath5k_attr_show_##name(struct device *dev,		\

			struct device_attribute *attr,			\

			char *buf)					\

{									\

	struct ath5k_softc *sc = dev_get_drvdata(dev);			\

	return snprintf(buf, PAGE_SIZE, "%d\n", get); 			\

}									\

static DEVICE_ATTR(name, S_IRUGO, ath5k_attr_show_##name, NULL)



/*** ANI ***/



SIMPLE_SHOW_STORE(ani_mode, sc->ani_state.ani_mode, ath5k_ani_init);

SIMPLE_SHOW_STORE(noise_immunity_level, sc->ani_state.noise_imm_level,

			ath5k_ani_set_noise_immunity_level);

SIMPLE_SHOW_STORE(spur_level, sc->ani_state.spur_level,

			ath5k_ani_set_spur_immunity_level);

SIMPLE_SHOW_STORE(firstep_level, sc->ani_state.firstep_level,

			ath5k_ani_set_firstep_level);

SIMPLE_SHOW_STORE(ofdm_weak_signal_detection, sc->ani_state.ofdm_weak_sig,

			ath5k_ani_set_ofdm_weak_signal_detection);

SIMPLE_SHOW_STORE(cck_weak_signal_detection, sc->ani_state.cck_weak_sig,

			ath5k_ani_set_cck_weak_signal_detection);

SIMPLE_SHOW(spur_level_max, sc->ani_state.max_spur_level);



static ssize_t ath5k_attr_show_noise_immunity_level_max(struct device *dev,

			struct device_attribute *attr,

			char *buf)

{

	return snprintf(buf, PAGE_SIZE, "%d\n", ATH5K_ANI_MAX_NOISE_IMM_LVL);

}

static DEVICE_ATTR(noise_immunity_level_max, S_IRUGO,

		   ath5k_attr_show_noise_immunity_level_max, NULL);



static ssize_t ath5k_attr_show_firstep_level_max(struct device *dev,

			struct device_attribute *attr,

			char *buf)

{

	return snprintf(buf, PAGE_SIZE, "%d\n", ATH5K_ANI_MAX_FIRSTEP_LVL);

}

static DEVICE_ATTR(firstep_level_max, S_IRUGO,

		   ath5k_attr_show_firstep_level_max, NULL);



static struct attribute *ath5k_sysfs_entries_ani[] = {

	&dev_attr_ani_mode.attr,

	&dev_attr_noise_immunity_level.attr,

	&dev_attr_spur_level.attr,

	&dev_attr_firstep_level.attr,

	&dev_attr_ofdm_weak_signal_detection.attr,

	&dev_attr_cck_weak_signal_detection.attr,

	&dev_attr_noise_immunity_level_max.attr,

	&dev_attr_spur_level_max.attr,

	&dev_attr_firstep_level_max.attr,

	NULL

};



static struct attribute_group ath5k_attribute_group_ani = {

	.name = "ani",

	.attrs = ath5k_sysfs_entries_ani,

};





/*** register / unregister ***/



int

ath5k_sysfs_register(struct ath5k_softc *sc)

{

	struct device *dev = &sc->pdev->dev;

	int err;



	err = sysfs_create_group(&dev->kobj, &ath5k_attribute_group_ani);

	if (err) {

		ATH5K_ERR(sc, "failed to create sysfs group\n");

		return err;

	}



	return 0;

}



void

ath5k_sysfs_unregister(struct ath5k_softc *sc)

{

	struct device *dev = &sc->pdev->dev;



	sysfs_remove_group(&dev->kobj, &ath5k_attribute_group_ani);

}