ath5k: Check if pci pdev struct is initialized in common functions.
[linux-2.6.git] / 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->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->dev;
114
115         sysfs_remove_group(&dev->kobj, &ath5k_attribute_group_ani);
116 }