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

   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)                               \
  10 static 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                                                                         \
  19 static 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 }                                                                       \
  33 static DEVICE_ATTR(name, S_IRUGO | S_IWUSR,                             \
  34                    ath5k_attr_show_##name, ath5k_attr_store_##name)
  35
  36 #define SIMPLE_SHOW(name, get)                                          \
  37 static 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 }                                                                       \
  45 static DEVICE_ATTR(name, S_IRUGO, ath5k_attr_show_##name, NULL)
  46
  47 /*** ANI ***/
  48
  49 SIMPLE_SHOW_STORE(ani_mode, ah->ani_state.ani_mode, ath5k_ani_init);
  50 SIMPLE_SHOW_STORE(noise_immunity_level, ah->ani_state.noise_imm_level,
  51                         ath5k_ani_set_noise_immunity_level);
  52 SIMPLE_SHOW_STORE(spur_level, ah->ani_state.spur_level,
  53                         ath5k_ani_set_spur_immunity_level);
  54 SIMPLE_SHOW_STORE(firstep_level, ah->ani_state.firstep_level,
  55                         ath5k_ani_set_firstep_level);
  56 SIMPLE_SHOW_STORE(ofdm_weak_signal_detection, ah->ani_state.ofdm_weak_sig,
  57                         ath5k_ani_set_ofdm_weak_signal_detection);
  58 SIMPLE_SHOW_STORE(cck_weak_signal_detection, ah->ani_state.cck_weak_sig,
  59                         ath5k_ani_set_cck_weak_signal_detection);
  60 SIMPLE_SHOW(spur_level_max, ah->ani_state.max_spur_level);
  61
  62 static 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 }
  68 static DEVICE_ATTR(noise_immunity_level_max, S_IRUGO,
  69                    ath5k_attr_show_noise_immunity_level_max, NULL);
  70
  71 static 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 }
  77 static DEVICE_ATTR(firstep_level_max, S_IRUGO,
  78                    ath5k_attr_show_firstep_level_max, NULL);
  79
  80 static 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
  93 static struct attribute_group ath5k_attribute_group_ani = {
  94         .name = "ani",
  95         .attrs = ath5k_sysfs_entries_ani,
  96 };
  97
  98
  99 /*** register / unregister ***/
 100
 101 int
 102 ath5k_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
 116 void
 117 ath5k_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 }