linux/drivers/net/wireless/ath/ath5k/sysfs.c
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   1#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
   2
   3#include <linux/device.h>
   4#include <linux/pci.h>
   5
   6#include "ath5k.h"
   7#include "reg.h"
   8
   9#define SIMPLE_SHOW_STORE(name, get, set)                               \
  10static ssize_t ath5k_attr_show_##name(struct device *dev,               \
  11                        struct device_attribute *attr,                  \
  12                        char *buf)                                      \
  13{                                                                       \
  14        struct ieee80211_hw *hw = dev_get_drvdata(dev);                 \
  15        struct ath5k_hw *ah = hw->priv;                         \
  16        return snprintf(buf, PAGE_SIZE, "%d\n", get);                   \
  17}                                                                       \
  18                                                                        \
  19static ssize_t ath5k_attr_store_##name(struct device *dev,              \
  20                        struct device_attribute *attr,                  \
  21                        const char *buf, size_t count)                  \
  22{                                                                       \
  23        struct ieee80211_hw *hw = dev_get_drvdata(dev);                 \
  24        struct ath5k_hw *ah = hw->priv;                         \
  25        int val, ret;                                                   \
  26                                                                        \
  27        ret = kstrtoint(buf, 10, &val);                                 \
  28        if (ret < 0)                                                    \
  29                return ret;                                             \
  30        set(ah, val);                                           \
  31        return count;                                                   \
  32}                                                                       \
  33static DEVICE_ATTR(name, S_IRUGO | S_IWUSR,                             \
  34                   ath5k_attr_show_##name, ath5k_attr_store_##name)
  35
  36#define SIMPLE_SHOW(name, get)                                          \
  37static ssize_t ath5k_attr_show_##name(struct device *dev,               \
  38                        struct device_attribute *attr,                  \
  39                        char *buf)                                      \
  40{                                                                       \
  41        struct ieee80211_hw *hw = dev_get_drvdata(dev);                 \
  42        struct ath5k_hw *ah = hw->priv;                         \
  43        return snprintf(buf, PAGE_SIZE, "%d\n", get);                   \
  44}                                                                       \
  45static DEVICE_ATTR(name, S_IRUGO, ath5k_attr_show_##name, NULL)
  46
  47/*** ANI ***/
  48
  49SIMPLE_SHOW_STORE(ani_mode, ah->ani_state.ani_mode, ath5k_ani_init);
  50SIMPLE_SHOW_STORE(noise_immunity_level, ah->ani_state.noise_imm_level,
  51                        ath5k_ani_set_noise_immunity_level);
  52SIMPLE_SHOW_STORE(spur_level, ah->ani_state.spur_level,
  53                        ath5k_ani_set_spur_immunity_level);
  54SIMPLE_SHOW_STORE(firstep_level, ah->ani_state.firstep_level,
  55                        ath5k_ani_set_firstep_level);
  56SIMPLE_SHOW_STORE(ofdm_weak_signal_detection, ah->ani_state.ofdm_weak_sig,
  57                        ath5k_ani_set_ofdm_weak_signal_detection);
  58SIMPLE_SHOW_STORE(cck_weak_signal_detection, ah->ani_state.cck_weak_sig,
  59                        ath5k_ani_set_cck_weak_signal_detection);
  60SIMPLE_SHOW(spur_level_max, ah->ani_state.max_spur_level);
  61
  62static ssize_t ath5k_attr_show_noise_immunity_level_max(struct device *dev,
  63                        struct device_attribute *attr,
  64                        char *buf)
  65{
  66        return snprintf(buf, PAGE_SIZE, "%d\n", ATH5K_ANI_MAX_NOISE_IMM_LVL);
  67}
  68static DEVICE_ATTR(noise_immunity_level_max, S_IRUGO,
  69                   ath5k_attr_show_noise_immunity_level_max, NULL);
  70
  71static ssize_t ath5k_attr_show_firstep_level_max(struct device *dev,
  72                        struct device_attribute *attr,
  73                        char *buf)
  74{
  75        return snprintf(buf, PAGE_SIZE, "%d\n", ATH5K_ANI_MAX_FIRSTEP_LVL);
  76}
  77static DEVICE_ATTR(firstep_level_max, S_IRUGO,
  78                   ath5k_attr_show_firstep_level_max, NULL);
  79
  80static struct attribute *ath5k_sysfs_entries_ani[] = {
  81        &dev_attr_ani_mode.attr,
  82        &dev_attr_noise_immunity_level.attr,
  83        &dev_attr_spur_level.attr,
  84        &dev_attr_firstep_level.attr,
  85        &dev_attr_ofdm_weak_signal_detection.attr,
  86        &dev_attr_cck_weak_signal_detection.attr,
  87        &dev_attr_noise_immunity_level_max.attr,
  88        &dev_attr_spur_level_max.attr,
  89        &dev_attr_firstep_level_max.attr,
  90        NULL
  91};
  92
  93static struct attribute_group ath5k_attribute_group_ani = {
  94        .name = "ani",
  95        .attrs = ath5k_sysfs_entries_ani,
  96};
  97
  98
  99/*** register / unregister ***/
 100
 101int
 102ath5k_sysfs_register(struct ath5k_hw *ah)
 103{
 104        struct device *dev = ah->dev;
 105        int err;
 106
 107        err = sysfs_create_group(&dev->kobj, &ath5k_attribute_group_ani);
 108        if (err) {
 109                ATH5K_ERR(ah, "failed to create sysfs group\n");
 110                return err;
 111        }
 112
 113        return 0;
 114}
 115
 116void
 117ath5k_sysfs_unregister(struct ath5k_hw *ah)
 118{
 119        struct device *dev = ah->dev;
 120
 121        sysfs_remove_group(&dev->kobj, &ath5k_attribute_group_ani);
 122}
 123