124 lines · c
1// SPDX-License-Identifier: GPL-2.02#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt3 4#include <linux/device.h>5#include <linux/pci.h>6 7#include "ath5k.h"8#include "reg.h"9 10#define SIMPLE_SHOW_STORE(name, get, set) \11static ssize_t ath5k_attr_show_##name(struct device *dev, \12 struct device_attribute *attr, \13 char *buf) \14{ \15 struct ieee80211_hw *hw = dev_get_drvdata(dev); \16 struct ath5k_hw *ah = hw->priv; \17 return sysfs_emit(buf, "%d\n", get); \18} \19 \20static ssize_t ath5k_attr_store_##name(struct device *dev, \21 struct device_attribute *attr, \22 const char *buf, size_t count) \23{ \24 struct ieee80211_hw *hw = dev_get_drvdata(dev); \25 struct ath5k_hw *ah = hw->priv; \26 int val, ret; \27 \28 ret = kstrtoint(buf, 10, &val); \29 if (ret < 0) \30 return ret; \31 set(ah, val); \32 return count; \33} \34static DEVICE_ATTR(name, 0644, \35 ath5k_attr_show_##name, ath5k_attr_store_##name)36 37#define SIMPLE_SHOW(name, get) \38static ssize_t ath5k_attr_show_##name(struct device *dev, \39 struct device_attribute *attr, \40 char *buf) \41{ \42 struct ieee80211_hw *hw = dev_get_drvdata(dev); \43 struct ath5k_hw *ah = hw->priv; \44 return sysfs_emit(buf, "%d\n", get); \45} \46static DEVICE_ATTR(name, 0444, ath5k_attr_show_##name, NULL)47 48/*** ANI ***/49 50SIMPLE_SHOW_STORE(ani_mode, ah->ani_state.ani_mode, ath5k_ani_init);51SIMPLE_SHOW_STORE(noise_immunity_level, ah->ani_state.noise_imm_level,52 ath5k_ani_set_noise_immunity_level);53SIMPLE_SHOW_STORE(spur_level, ah->ani_state.spur_level,54 ath5k_ani_set_spur_immunity_level);55SIMPLE_SHOW_STORE(firstep_level, ah->ani_state.firstep_level,56 ath5k_ani_set_firstep_level);57SIMPLE_SHOW_STORE(ofdm_weak_signal_detection, ah->ani_state.ofdm_weak_sig,58 ath5k_ani_set_ofdm_weak_signal_detection);59SIMPLE_SHOW_STORE(cck_weak_signal_detection, ah->ani_state.cck_weak_sig,60 ath5k_ani_set_cck_weak_signal_detection);61SIMPLE_SHOW(spur_level_max, ah->ani_state.max_spur_level);62 63static ssize_t ath5k_attr_show_noise_immunity_level_max(struct device *dev,64 struct device_attribute *attr,65 char *buf)66{67 return sysfs_emit(buf, "%d\n", ATH5K_ANI_MAX_NOISE_IMM_LVL);68}69static DEVICE_ATTR(noise_immunity_level_max, 0444,70 ath5k_attr_show_noise_immunity_level_max, NULL);71 72static ssize_t ath5k_attr_show_firstep_level_max(struct device *dev,73 struct device_attribute *attr,74 char *buf)75{76 return sysfs_emit(buf, "%d\n", ATH5K_ANI_MAX_FIRSTEP_LVL);77}78static DEVICE_ATTR(firstep_level_max, 0444,79 ath5k_attr_show_firstep_level_max, NULL);80 81static struct attribute *ath5k_sysfs_entries_ani[] = {82 &dev_attr_ani_mode.attr,83 &dev_attr_noise_immunity_level.attr,84 &dev_attr_spur_level.attr,85 &dev_attr_firstep_level.attr,86 &dev_attr_ofdm_weak_signal_detection.attr,87 &dev_attr_cck_weak_signal_detection.attr,88 &dev_attr_noise_immunity_level_max.attr,89 &dev_attr_spur_level_max.attr,90 &dev_attr_firstep_level_max.attr,91 NULL92};93 94static struct attribute_group ath5k_attribute_group_ani = {95 .name = "ani",96 .attrs = ath5k_sysfs_entries_ani,97};98 99 100/*** register / unregister ***/101 102int103ath5k_sysfs_register(struct ath5k_hw *ah)104{105 struct device *dev = ah->dev;106 int err;107 108 err = sysfs_create_group(&dev->kobj, &ath5k_attribute_group_ani);109 if (err) {110 ATH5K_ERR(ah, "failed to create sysfs group\n");111 return err;112 }113 114 return 0;115}116 117void118ath5k_sysfs_unregister(struct ath5k_hw *ah)119{120 struct device *dev = ah->dev;121 122 sysfs_remove_group(&dev->kobj, &ath5k_attribute_group_ani);123}124