1 | /* |
2 | * via-pmu event device for reporting some events that come through the PMU |
3 | * |
4 | * Copyright 2006 Johannes Berg <johannes@sipsolutions.net> |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify |
7 | * it under the terms of the GNU General Public License as published by |
8 | * the Free Software Foundation; either version 2 of the License, or |
9 | * (at your option) any later version. |
10 | * |
11 | * This program is distributed in the hope that it will be useful, but |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
14 | * NON INFRINGEMENT. See the GNU General Public License for more |
15 | * details. |
16 | * |
17 | * You should have received a copy of the GNU General Public License |
18 | * along with this program; if not, write to the Free Software |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
20 | * |
21 | */ |
22 | |
23 | #include <linux/input.h> |
24 | #include <linux/adb.h> |
25 | #include <linux/pmu.h> |
26 | #include "via-pmu-event.h" |
27 | |
28 | static struct input_dev *pmu_input_dev; |
29 | |
30 | static int __init via_pmu_event_init(void) |
31 | { |
32 | int err; |
33 | |
34 | /* do other models report button/lid status? */ |
35 | if (pmu_get_model() != PMU_KEYLARGO_BASED) |
36 | return -ENODEV; |
37 | |
38 | pmu_input_dev = input_allocate_device(); |
39 | if (!pmu_input_dev) |
40 | return -ENOMEM; |
41 | |
42 | pmu_input_dev->name = "PMU" ; |
43 | pmu_input_dev->id.bustype = BUS_HOST; |
44 | pmu_input_dev->id.vendor = 0x0001; |
45 | pmu_input_dev->id.product = 0x0001; |
46 | pmu_input_dev->id.version = 0x0100; |
47 | |
48 | set_bit(EV_KEY, addr: pmu_input_dev->evbit); |
49 | set_bit(EV_SW, addr: pmu_input_dev->evbit); |
50 | set_bit(KEY_POWER, addr: pmu_input_dev->keybit); |
51 | set_bit(SW_LID, addr: pmu_input_dev->swbit); |
52 | |
53 | err = input_register_device(pmu_input_dev); |
54 | if (err) |
55 | input_free_device(dev: pmu_input_dev); |
56 | return err; |
57 | } |
58 | |
59 | void via_pmu_event(int key, int down) |
60 | { |
61 | |
62 | if (unlikely(!pmu_input_dev)) |
63 | return; |
64 | |
65 | switch (key) { |
66 | case PMU_EVT_POWER: |
67 | input_report_key(dev: pmu_input_dev, KEY_POWER, value: down); |
68 | break; |
69 | case PMU_EVT_LID: |
70 | input_report_switch(dev: pmu_input_dev, SW_LID, value: down); |
71 | break; |
72 | default: |
73 | /* no such key handled */ |
74 | return; |
75 | } |
76 | |
77 | input_sync(dev: pmu_input_dev); |
78 | } |
79 | |
80 | late_initcall(via_pmu_event_init); |
81 | |