Commit | Line | Data |
---|---|---|
4a11b59d AV |
1 | /* |
2 | * LEDs triggers for power supply class | |
3 | * | |
4 | * Copyright © 2007 Anton Vorontsov <cbou@mail.ru> | |
5 | * Copyright © 2004 Szabolcs Gyurko | |
6 | * Copyright © 2003 Ian Molton <spyro@f2s.com> | |
7 | * | |
8 | * Modified: 2004, Oct Szabolcs Gyurko | |
9 | * | |
10 | * You may use this code as per GPL version 2 | |
11 | */ | |
12 | ||
4d24473c | 13 | #include <linux/kernel.h> |
51990e82 | 14 | #include <linux/device.h> |
4a11b59d | 15 | #include <linux/power_supply.h> |
5a0e3ad6 | 16 | #include <linux/slab.h> |
4a11b59d | 17 | |
25f12141 AB |
18 | #include "power_supply.h" |
19 | ||
4a11b59d AV |
20 | /* Battery specific LEDs triggers. */ |
21 | ||
22 | static void power_supply_update_bat_leds(struct power_supply *psy) | |
23 | { | |
24 | union power_supply_propval status; | |
6501f728 VK |
25 | unsigned long delay_on = 0; |
26 | unsigned long delay_off = 0; | |
4a11b59d | 27 | |
a9f6a19b | 28 | if (power_supply_get_property(psy, POWER_SUPPLY_PROP_STATUS, &status)) |
4a11b59d AV |
29 | return; |
30 | ||
297d716f | 31 | dev_dbg(&psy->dev, "%s %d\n", __func__, status.intval); |
4a11b59d AV |
32 | |
33 | switch (status.intval) { | |
34 | case POWER_SUPPLY_STATUS_FULL: | |
35 | led_trigger_event(psy->charging_full_trig, LED_FULL); | |
36 | led_trigger_event(psy->charging_trig, LED_OFF); | |
37 | led_trigger_event(psy->full_trig, LED_FULL); | |
6501f728 VK |
38 | led_trigger_event(psy->charging_blink_full_solid_trig, |
39 | LED_FULL); | |
4a11b59d AV |
40 | break; |
41 | case POWER_SUPPLY_STATUS_CHARGING: | |
42 | led_trigger_event(psy->charging_full_trig, LED_FULL); | |
43 | led_trigger_event(psy->charging_trig, LED_FULL); | |
44 | led_trigger_event(psy->full_trig, LED_OFF); | |
6501f728 VK |
45 | led_trigger_blink(psy->charging_blink_full_solid_trig, |
46 | &delay_on, &delay_off); | |
4a11b59d AV |
47 | break; |
48 | default: | |
49 | led_trigger_event(psy->charging_full_trig, LED_OFF); | |
50 | led_trigger_event(psy->charging_trig, LED_OFF); | |
51 | led_trigger_event(psy->full_trig, LED_OFF); | |
6501f728 VK |
52 | led_trigger_event(psy->charging_blink_full_solid_trig, |
53 | LED_OFF); | |
4a11b59d AV |
54 | break; |
55 | } | |
4a11b59d AV |
56 | } |
57 | ||
58 | static int power_supply_create_bat_triggers(struct power_supply *psy) | |
59 | { | |
4d24473c | 60 | psy->charging_full_trig_name = kasprintf(GFP_KERNEL, |
297d716f | 61 | "%s-charging-or-full", psy->desc->name); |
4a11b59d AV |
62 | if (!psy->charging_full_trig_name) |
63 | goto charging_full_failed; | |
64 | ||
4d24473c | 65 | psy->charging_trig_name = kasprintf(GFP_KERNEL, |
297d716f | 66 | "%s-charging", psy->desc->name); |
4a11b59d AV |
67 | if (!psy->charging_trig_name) |
68 | goto charging_failed; | |
69 | ||
297d716f | 70 | psy->full_trig_name = kasprintf(GFP_KERNEL, "%s-full", psy->desc->name); |
4a11b59d AV |
71 | if (!psy->full_trig_name) |
72 | goto full_failed; | |
73 | ||
6501f728 | 74 | psy->charging_blink_full_solid_trig_name = kasprintf(GFP_KERNEL, |
297d716f | 75 | "%s-charging-blink-full-solid", psy->desc->name); |
6501f728 VK |
76 | if (!psy->charging_blink_full_solid_trig_name) |
77 | goto charging_blink_full_solid_failed; | |
78 | ||
4a11b59d AV |
79 | led_trigger_register_simple(psy->charging_full_trig_name, |
80 | &psy->charging_full_trig); | |
81 | led_trigger_register_simple(psy->charging_trig_name, | |
82 | &psy->charging_trig); | |
83 | led_trigger_register_simple(psy->full_trig_name, | |
84 | &psy->full_trig); | |
6501f728 VK |
85 | led_trigger_register_simple(psy->charging_blink_full_solid_trig_name, |
86 | &psy->charging_blink_full_solid_trig); | |
4a11b59d | 87 | |
464069ca | 88 | return 0; |
4a11b59d | 89 | |
6501f728 VK |
90 | charging_blink_full_solid_failed: |
91 | kfree(psy->full_trig_name); | |
4a11b59d AV |
92 | full_failed: |
93 | kfree(psy->charging_trig_name); | |
94 | charging_failed: | |
95 | kfree(psy->charging_full_trig_name); | |
96 | charging_full_failed: | |
464069ca | 97 | return -ENOMEM; |
4a11b59d AV |
98 | } |
99 | ||
100 | static void power_supply_remove_bat_triggers(struct power_supply *psy) | |
101 | { | |
102 | led_trigger_unregister_simple(psy->charging_full_trig); | |
103 | led_trigger_unregister_simple(psy->charging_trig); | |
104 | led_trigger_unregister_simple(psy->full_trig); | |
6501f728 VK |
105 | led_trigger_unregister_simple(psy->charging_blink_full_solid_trig); |
106 | kfree(psy->charging_blink_full_solid_trig_name); | |
4a11b59d AV |
107 | kfree(psy->full_trig_name); |
108 | kfree(psy->charging_trig_name); | |
109 | kfree(psy->charging_full_trig_name); | |
4a11b59d AV |
110 | } |
111 | ||
112 | /* Generated power specific LEDs triggers. */ | |
113 | ||
114 | static void power_supply_update_gen_leds(struct power_supply *psy) | |
115 | { | |
116 | union power_supply_propval online; | |
117 | ||
a9f6a19b | 118 | if (power_supply_get_property(psy, POWER_SUPPLY_PROP_ONLINE, &online)) |
4a11b59d AV |
119 | return; |
120 | ||
297d716f | 121 | dev_dbg(&psy->dev, "%s %d\n", __func__, online.intval); |
4a11b59d AV |
122 | |
123 | if (online.intval) | |
124 | led_trigger_event(psy->online_trig, LED_FULL); | |
125 | else | |
126 | led_trigger_event(psy->online_trig, LED_OFF); | |
4a11b59d AV |
127 | } |
128 | ||
129 | static int power_supply_create_gen_triggers(struct power_supply *psy) | |
130 | { | |
297d716f KK |
131 | psy->online_trig_name = kasprintf(GFP_KERNEL, "%s-online", |
132 | psy->desc->name); | |
4a11b59d | 133 | if (!psy->online_trig_name) |
464069ca | 134 | return -ENOMEM; |
4a11b59d | 135 | |
4a11b59d AV |
136 | led_trigger_register_simple(psy->online_trig_name, &psy->online_trig); |
137 | ||
464069ca | 138 | return 0; |
4a11b59d AV |
139 | } |
140 | ||
141 | static void power_supply_remove_gen_triggers(struct power_supply *psy) | |
142 | { | |
143 | led_trigger_unregister_simple(psy->online_trig); | |
144 | kfree(psy->online_trig_name); | |
4a11b59d AV |
145 | } |
146 | ||
147 | /* Choice what triggers to create&update. */ | |
148 | ||
149 | void power_supply_update_leds(struct power_supply *psy) | |
150 | { | |
297d716f | 151 | if (psy->desc->type == POWER_SUPPLY_TYPE_BATTERY) |
4a11b59d AV |
152 | power_supply_update_bat_leds(psy); |
153 | else | |
154 | power_supply_update_gen_leds(psy); | |
4a11b59d AV |
155 | } |
156 | ||
157 | int power_supply_create_triggers(struct power_supply *psy) | |
158 | { | |
297d716f | 159 | if (psy->desc->type == POWER_SUPPLY_TYPE_BATTERY) |
4a11b59d AV |
160 | return power_supply_create_bat_triggers(psy); |
161 | return power_supply_create_gen_triggers(psy); | |
162 | } | |
163 | ||
164 | void power_supply_remove_triggers(struct power_supply *psy) | |
165 | { | |
297d716f | 166 | if (psy->desc->type == POWER_SUPPLY_TYPE_BATTERY) |
4a11b59d AV |
167 | power_supply_remove_bat_triggers(psy); |
168 | else | |
169 | power_supply_remove_gen_triggers(psy); | |
4a11b59d | 170 | } |