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_softc *sc = 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_softc *sc = hw->priv;                              \
  24         int val;                                                        \
  25                                                                         \
  26         val = (int)simple_strtoul(buf, NULL, 10);                       \
  27         set(sc->ah, val);                                               \
  28         return count;                                                   \
  29 }                                                                       \
  30 static DEVICE_ATTR(name, S_IRUGO | S_IWUSR,                             \
  31                    ath5k_attr_show_##name, ath5k_attr_store_##name)
  32
  33 #define SIMPLE_SHOW(name, get)                                          \
  34 static ssize_t ath5k_attr_show_##name(struct device *dev,               \
  35                         struct device_attribute *attr,                  \
  36                         char *buf)                                      \
  37 {                                                                       \
  38         struct ieee80211_hw *hw = dev_get_drvdata(dev);                 \
  39         struct ath5k_softc *sc = hw->priv;                              \
  40         return snprintf(buf, PAGE_SIZE, "%d\n", get);                   \
  41 }                                                                       \
  42 static DEVICE_ATTR(name, S_IRUGO, ath5k_attr_show_##name, NULL)
  43
  44 /*** ANI ***/
  45
  46 SIMPLE_SHOW_STORE(ani_mode, sc->ani_state.ani_mode, ath5k_ani_init);
  47 SIMPLE_SHOW_STORE(noise_immunity_level, sc->ani_state.noise_imm_level,
  48                         ath5k_ani_set_noise_immunity_level);
  49 SIMPLE_SHOW_STORE(spur_level, sc->ani_state.spur_level,
  50                         ath5k_ani_set_spur_immunity_level);
  51 SIMPLE_SHOW_STORE(firstep_level, sc->ani_state.firstep_level,
  52                         ath5k_ani_set_firstep_level);
  53 SIMPLE_SHOW_STORE(ofdm_weak_signal_detection, sc->ani_state.ofdm_weak_sig,
  54                         ath5k_ani_set_ofdm_weak_signal_detection);
  55 SIMPLE_SHOW_STORE(cck_weak_signal_detection, sc->ani_state.cck_weak_sig,
  56                         ath5k_ani_set_cck_weak_signal_detection);
  57 SIMPLE_SHOW(spur_level_max, sc->ani_state.max_spur_level);
  58
  59 static ssize_t ath5k_attr_show_noise_immunity_level_max(struct device *dev,
  60                         struct device_attribute *attr,
  61                         char *buf)
  62 {
  63         return snprintf(buf, PAGE_SIZE, "%d\n", ATH5K_ANI_MAX_NOISE_IMM_LVL);
  64 }
  65 static DEVICE_ATTR(noise_immunity_level_max, S_IRUGO,
  66                    ath5k_attr_show_noise_immunity_level_max, NULL);
  67
  68 static ssize_t ath5k_attr_show_firstep_level_max(struct device *dev,
  69                         struct device_attribute *attr,
  70                         char *buf)
  71 {
  72         return snprintf(buf, PAGE_SIZE, "%d\n", ATH5K_ANI_MAX_FIRSTEP_LVL);
  73 }
  74 static DEVICE_ATTR(firstep_level_max, S_IRUGO,
  75                    ath5k_attr_show_firstep_level_max, NULL);
  76
  77 static struct attribute *ath5k_sysfs_entries_ani[] = {
  78         &dev_attr_ani_mode.attr,
  79         &dev_attr_noise_immunity_level.attr,
  80         &dev_attr_spur_level.attr,
  81         &dev_attr_firstep_level.attr,
  82         &dev_attr_ofdm_weak_signal_detection.attr,
  83         &dev_attr_cck_weak_signal_detection.attr,
  84         &dev_attr_noise_immunity_level_max.attr,
  85         &dev_attr_spur_level_max.attr,
  86         &dev_attr_firstep_level_max.attr,
  87         NULL
  88 };
  89
  90 static struct attribute_group ath5k_attribute_group_ani = {
  91         .name = "ani",
  92         .attrs = ath5k_sysfs_entries_ani,
  93 };
  94
  95
  96 /*** register / unregister ***/
  97
  98 int
  99 ath5k_sysfs_register(struct ath5k_softc *sc)
 100 {
 101         struct device *dev = sc->dev;
 102         int err;
 103
 104         err = sysfs_create_group(&dev->kobj, &ath5k_attribute_group_ani);
 105         if (err) {
 106                 ATH5K_ERR(sc, "failed to create sysfs group\n");
 107                 return err;
 108         }
 109
 110         return 0;
 111 }
 112
 113 void
 114 ath5k_sysfs_unregister(struct ath5k_softc *sc)
 115 {
 116         struct device *dev = sc->dev;
 117
 118         sysfs_remove_group(&dev->kobj, &ath5k_attribute_group_ani);
 119 }