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 ath5k_softc *sc = dev_get_drvdata(dev);                  \
  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 ath5k_softc *sc = dev_get_drvdata(dev);                  \
  22         int val, ret;                                                   \
  23                                                                         \
  24         ret = kstrtoint(buf, 10, &val);                                 \
  25         if (ret < 0)                                                    \
  26                 return ret;                                             \
  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 ath5k_softc *sc = dev_get_drvdata(dev);                  \
  39         return snprintf(buf, PAGE_SIZE, "%d\n", get);                   \
  40 }                                                                       \
  41 static DEVICE_ATTR(name, S_IRUGO, ath5k_attr_show_##name, NULL)
  42
  43 /*** ANI ***/
  44
  45 SIMPLE_SHOW_STORE(ani_mode, sc->ani_state.ani_mode, ath5k_ani_init);
  46 SIMPLE_SHOW_STORE(noise_immunity_level, sc->ani_state.noise_imm_level,
  47                         ath5k_ani_set_noise_immunity_level);
  48 SIMPLE_SHOW_STORE(spur_level, sc->ani_state.spur_level,
  49                         ath5k_ani_set_spur_immunity_level);
  50 SIMPLE_SHOW_STORE(firstep_level, sc->ani_state.firstep_level,
  51                         ath5k_ani_set_firstep_level);
  52 SIMPLE_SHOW_STORE(ofdm_weak_signal_detection, sc->ani_state.ofdm_weak_sig,
  53                         ath5k_ani_set_ofdm_weak_signal_detection);
  54 SIMPLE_SHOW_STORE(cck_weak_signal_detection, sc->ani_state.cck_weak_sig,
  55                         ath5k_ani_set_cck_weak_signal_detection);
  56 SIMPLE_SHOW(spur_level_max, sc->ani_state.max_spur_level);
  57
  58 static ssize_t ath5k_attr_show_noise_immunity_level_max(struct device *dev,
  59                         struct device_attribute *attr,
  60                         char *buf)
  61 {
  62         return snprintf(buf, PAGE_SIZE, "%d\n", ATH5K_ANI_MAX_NOISE_IMM_LVL);
  63 }
  64 static DEVICE_ATTR(noise_immunity_level_max, S_IRUGO,
  65                    ath5k_attr_show_noise_immunity_level_max, NULL);
  66
  67 static ssize_t ath5k_attr_show_firstep_level_max(struct device *dev,
  68                         struct device_attribute *attr,
  69                         char *buf)
  70 {
  71         return snprintf(buf, PAGE_SIZE, "%d\n", ATH5K_ANI_MAX_FIRSTEP_LVL);
  72 }
  73 static DEVICE_ATTR(firstep_level_max, S_IRUGO,
  74                    ath5k_attr_show_firstep_level_max, NULL);
  75
  76 static struct attribute *ath5k_sysfs_entries_ani[] = {
  77         &dev_attr_ani_mode.attr,
  78         &dev_attr_noise_immunity_level.attr,
  79         &dev_attr_spur_level.attr,
  80         &dev_attr_firstep_level.attr,
  81         &dev_attr_ofdm_weak_signal_detection.attr,
  82         &dev_attr_cck_weak_signal_detection.attr,
  83         &dev_attr_noise_immunity_level_max.attr,
  84         &dev_attr_spur_level_max.attr,
  85         &dev_attr_firstep_level_max.attr,
  86         NULL
  87 };
  88
  89 static struct attribute_group ath5k_attribute_group_ani = {
  90         .name = "ani",
  91         .attrs = ath5k_sysfs_entries_ani,
  92 };
  93
  94
  95 /*** register / unregister ***/
  96
  97 int
  98 ath5k_sysfs_register(struct ath5k_softc *sc)
  99 {
 100         struct device *dev = sc->dev;
 101         int err;
 102
 103         err = sysfs_create_group(&dev->kobj, &ath5k_attribute_group_ani);
 104         if (err) {
 105                 ATH5K_ERR(sc, "failed to create sysfs group\n");
 106                 return err;
 107         }
 108
 109         return 0;
 110 }
 111
 112 void
 113 ath5k_sysfs_unregister(struct ath5k_softc *sc)
 114 {
 115         struct device *dev = sc->dev;
 116
 117         sysfs_remove_group(&dev->kobj, &ath5k_attribute_group_ani);
 118 }