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kernel/linux-rt-4.4.41/drivers/net/wireless/ath/ath5k/sysfs.c 3.5 KB
5113f6f70   김현기   kernel add
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  #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  
  #include <linux/device.h>
  #include <linux/pci.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 ieee80211_hw *hw = dev_get_drvdata(dev);			\
  	struct ath5k_hw *ah = hw->priv;				\
  	return snprintf(buf, PAGE_SIZE, "%d
  ", get);			\
  }									\
  									\
  static ssize_t ath5k_attr_store_##name(struct device *dev,		\
  			struct device_attribute *attr,			\
  			const char *buf, size_t count)			\
  {									\
  	struct ieee80211_hw *hw = dev_get_drvdata(dev);			\
  	struct ath5k_hw *ah = hw->priv;				\
  	int val, ret;							\
  									\
  	ret = kstrtoint(buf, 10, &val);					\
  	if (ret < 0)							\
  		return ret;						\
  	set(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 ieee80211_hw *hw = dev_get_drvdata(dev);			\
  	struct ath5k_hw *ah = hw->priv;				\
  	return snprintf(buf, PAGE_SIZE, "%d
  ", get);			\
  }									\
  static DEVICE_ATTR(name, S_IRUGO, ath5k_attr_show_##name, NULL)
  
  /*** ANI ***/
  
  SIMPLE_SHOW_STORE(ani_mode, ah->ani_state.ani_mode, ath5k_ani_init);
  SIMPLE_SHOW_STORE(noise_immunity_level, ah->ani_state.noise_imm_level,
  			ath5k_ani_set_noise_immunity_level);
  SIMPLE_SHOW_STORE(spur_level, ah->ani_state.spur_level,
  			ath5k_ani_set_spur_immunity_level);
  SIMPLE_SHOW_STORE(firstep_level, ah->ani_state.firstep_level,
  			ath5k_ani_set_firstep_level);
  SIMPLE_SHOW_STORE(ofdm_weak_signal_detection, ah->ani_state.ofdm_weak_sig,
  			ath5k_ani_set_ofdm_weak_signal_detection);
  SIMPLE_SHOW_STORE(cck_weak_signal_detection, ah->ani_state.cck_weak_sig,
  			ath5k_ani_set_cck_weak_signal_detection);
  SIMPLE_SHOW(spur_level_max, ah->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
  ", 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
  ", 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_hw *ah)
  {
  	struct device *dev = ah->dev;
  	int err;
  
  	err = sysfs_create_group(&dev->kobj, &ath5k_attribute_group_ani);
  	if (err) {
  		ATH5K_ERR(ah, "failed to create sysfs group
  ");
  		return err;
  	}
  
  	return 0;
  }
  
  void
  ath5k_sysfs_unregister(struct ath5k_hw *ah)
  {
  	struct device *dev = ah->dev;
  
  	sysfs_remove_group(&dev->kobj, &ath5k_attribute_group_ani);
  }