2010/5/19 Bruno Randolf <br1@xxxxxxxxxxx>:
> /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: Bruno Randolf <br1@xxxxxxxxxxx>
> ---
> drivers/net/wireless/ath/ath5k/Makefile | 1
> drivers/net/wireless/ath/ath5k/ath5k.h | 3 +
> drivers/net/wireless/ath/ath5k/base.c | 3 +
> drivers/net/wireless/ath/ath5k/reset.c | 1
> drivers/net/wireless/ath/ath5k/sysfs.c | 116 +++++++++++++++++++++++++++++++
> 5 files changed, 123 insertions(+), 1 deletions(-)
> create mode 100644 drivers/net/wireless/ath/ath5k/sysfs.c
>
> diff --git a/drivers/net/wireless/ath/ath5k/Makefile b/drivers/net/wireless/ath/ath5k/Makefile
> index cc09595..2242a14 100644
> --- a/drivers/net/wireless/ath/ath5k/Makefile
> +++ b/drivers/net/wireless/ath/ath5k/Makefile
> @@ -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
> diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h
> index d6f9afe..eace74d 100644
> --- a/drivers/net/wireless/ath/ath5k/ath5k.h
> +++ b/drivers/net/wireless/ath/ath5k/ath5k.h
> @@ -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);
> diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
> index 3b43b76..d5d514f 100644
> --- a/drivers/net/wireless/ath/ath5k/base.c
> +++ b/drivers/net/wireless/ath/ath5k/base.c
> @@ -861,6 +861,8 @@ 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);
> @@ -896,6 +898,7 @@ 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
> diff --git a/drivers/net/wireless/ath/ath5k/reset.c b/drivers/net/wireless/ath/ath5k/reset.c
> index 2890a7f..b1d3239 100644
> --- a/drivers/net/wireless/ath/ath5k/reset.c
> +++ b/drivers/net/wireless/ath/ath5k/reset.c
> @@ -851,7 +851,6 @@ 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. */
> diff --git a/drivers/net/wireless/ath/ath5k/sysfs.c b/drivers/net/wireless/ath/ath5k/sysfs.c
> new file mode 100644
> index 0000000..90757de
> --- /dev/null
> +++ b/drivers/net/wireless/ath/ath5k/sysfs.c
> @@ -0,0 +1,116 @@
> +#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);
> +}
>
Acked-by: Nick Kossifidis <mickflemm@xxxxxxxxx>
--
GPG ID: 0xD21DB2DB
As you read this post global entropy rises. Have Fun ;-)
Nick
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