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

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