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, fmt: "%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, fmt: "%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(kobj: &dev->kobj, grp: &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(kobj: &dev->kobj, grp: &ath5k_attribute_group_ani); |
123 | } |
124 | |