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

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