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;                                                        \
  23                                                                         \
  24         val = (int)simple_strtoul(buf, NULL, 10);                       \
  25         set(sc->ah, val);                                               \
  26         return count;                                                   \
  27 }                                                                       \
  28 static DEVICE_ATTR(name, S_IRUGO | S_IWUSR,                             \
  29                    ath5k_attr_show_##name, ath5k_attr_store_##name)
  30
  31 #define SIMPLE_SHOW(name, get)                                          \
  32 static ssize_t ath5k_attr_show_##name(struct device *dev,               \
  33                         struct device_attribute *attr,                  \
  34                         char *buf)                                      \
  35 {                                                                       \
  36         struct ath5k_softc *sc = dev_get_drvdata(dev);                  \
  37         return snprintf(buf, PAGE_SIZE, "%d\n", get);                   \
  38 }                                                                       \
  39 static DEVICE_ATTR(name, S_IRUGO, ath5k_attr_show_##name, NULL)
  40
  41 /*** ANI ***/
  42
  43 SIMPLE_SHOW_STORE(ani_mode, sc->ani_state.ani_mode, ath5k_ani_init);
  44 SIMPLE_SHOW_STORE(noise_immunity_level, sc->ani_state.noise_imm_level,
  45                         ath5k_ani_set_noise_immunity_level);
  46 SIMPLE_SHOW_STORE(spur_level, sc->ani_state.spur_level,
  47                         ath5k_ani_set_spur_immunity_level);
  48 SIMPLE_SHOW_STORE(firstep_level, sc->ani_state.firstep_level,
  49                         ath5k_ani_set_firstep_level);
  50 SIMPLE_SHOW_STORE(ofdm_weak_signal_detection, sc->ani_state.ofdm_weak_sig,
  51                         ath5k_ani_set_ofdm_weak_signal_detection);
  52 SIMPLE_SHOW_STORE(cck_weak_signal_detection, sc->ani_state.cck_weak_sig,
  53                         ath5k_ani_set_cck_weak_signal_detection);
  54 SIMPLE_SHOW(spur_level_max, sc->ani_state.max_spur_level);
  55
  56 static ssize_t ath5k_attr_show_noise_immunity_level_max(struct device *dev,
  57                         struct device_attribute *attr,
  58                         char *buf)
  59 {
  60         return snprintf(buf, PAGE_SIZE, "%d\n", ATH5K_ANI_MAX_NOISE_IMM_LVL);
  61 }
  62 static DEVICE_ATTR(noise_immunity_level_max, S_IRUGO,
  63                    ath5k_attr_show_noise_immunity_level_max, NULL);
  64
  65 static ssize_t ath5k_attr_show_firstep_level_max(struct device *dev,
  66                         struct device_attribute *attr,
  67                         char *buf)
  68 {
  69         return snprintf(buf, PAGE_SIZE, "%d\n", ATH5K_ANI_MAX_FIRSTEP_LVL);
  70 }
  71 static DEVICE_ATTR(firstep_level_max, S_IRUGO,
  72                    ath5k_attr_show_firstep_level_max, NULL);
  73
  74 static struct attribute *ath5k_sysfs_entries_ani[] = {
  75         &dev_attr_ani_mode.attr,
  76         &dev_attr_noise_immunity_level.attr,
  77         &dev_attr_spur_level.attr,
  78         &dev_attr_firstep_level.attr,
  79         &dev_attr_ofdm_weak_signal_detection.attr,
  80         &dev_attr_cck_weak_signal_detection.attr,
  81         &dev_attr_noise_immunity_level_max.attr,
  82         &dev_attr_spur_level_max.attr,
  83         &dev_attr_firstep_level_max.attr,
  84         NULL
  85 };
  86
  87 static struct attribute_group ath5k_attribute_group_ani = {
  88         .name = "ani",
  89         .attrs = ath5k_sysfs_entries_ani,
  90 };
  91
  92
  93 /*** register / unregister ***/
  94
  95 int
  96 ath5k_sysfs_register(struct ath5k_softc *sc)
  97 {
  98         struct device *dev = &sc->pdev->dev;
  99         int err;
 100
 101         err = sysfs_create_group(&dev->kobj, &ath5k_attribute_group_ani);
 102         if (err) {
 103                 ATH5K_ERR(sc, "failed to create sysfs group\n");
 104                 return err;
 105         }
 106
 107         return 0;
 108 }
 109
 110 void
 111 ath5k_sysfs_unregister(struct ath5k_softc *sc)
 112 {
 113         struct device *dev = &sc->pdev->dev;
 114
 115         sysfs_remove_group(&dev->kobj, &ath5k_attribute_group_ani);
 116 }