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)				\
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	NULL
92};
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
102int
103ath5k_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
117void
118ath5k_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