1 // SPDX-License-Identifier: GPL-2.0 2 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 3 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) \ 11 static 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 \ 20 static 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 } \ 34 static DEVICE_ATTR(name, 0644, \ 35 ath5k_attr_show_##name, ath5k_attr_store_##name) 36 37 #define SIMPLE_SHOW(name, get) \ 38 static 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 } \ 46 static DEVICE_ATTR(name, 0444, ath5k_attr_show_##name, NULL) 47 48 /*** ANI ***/ 49 50 SIMPLE_SHOW_STORE(ani_mode, ah->ani_state.ani_mode, ath5k_ani_init); 51 SIMPLE_SHOW_STORE(noise_immunity_level, ah->ani_state.noise_imm_level, 52 ath5k_ani_set_noise_immunity_level); 53 SIMPLE_SHOW_STORE(spur_level, ah->ani_state.spur_level, 54 ath5k_ani_set_spur_immunity_level); 55 SIMPLE_SHOW_STORE(firstep_level, ah->ani_state.firstep_level, 56 ath5k_ani_set_firstep_level); 57 SIMPLE_SHOW_STORE(ofdm_weak_signal_detection, ah->ani_state.ofdm_weak_sig, 58 ath5k_ani_set_ofdm_weak_signal_detection); 59 SIMPLE_SHOW_STORE(cck_weak_signal_detection, ah->ani_state.cck_weak_sig, 60 ath5k_ani_set_cck_weak_signal_detection); 61 SIMPLE_SHOW(spur_level_max, ah->ani_state.max_spur_level); 62 63 static 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 } 69 static DEVICE_ATTR(noise_immunity_level_max, 0444, 70 ath5k_attr_show_noise_immunity_level_max, NULL); 71 72 static 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 } 78 static DEVICE_ATTR(firstep_level_max, 0444, 79 ath5k_attr_show_firstep_level_max, NULL); 80 81 static 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 NULL 92 }; 93 94 static struct attribute_group ath5k_attribute_group_ani = { 95 .name = "ani", 96 .attrs = ath5k_sysfs_entries_ani, 97 }; 98 99 100 /*** register / unregister ***/ 101 102 int 103 ath5k_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 } 116 117 void 118 ath5k_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