power.c revision 868f7635b2b57d883a3978b3837a58aecc0d7131 
1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16#include <errno.h>
17#include <string.h>
18#include <sys/types.h>
19#include <sys/stat.h>
20#include <sys/socket.h>
21#include <sys/un.h>
22#include <fcntl.h>
23#include <dlfcn.h>
24
25#define LOG_TAG "Qualcomm PowerHAL"
26#include <utils/Log.h>
27
28#include <hardware/hardware.h>
29#include <hardware/power.h>
30#define TOUCHBOOST_SOCKET       "/dev/socket/mpdecision/touchboost"
31
32static void power_init(struct power_module *module)
33{
34}
35
36static void power_set_interactive(struct power_module *module, int on)
37{
38}
39
40static void touch_boost()
41{
42    static int client_comsoc = -1;
43    static struct sockaddr_un client_addr;
44    int rc = 0;
45
46    client_comsoc = socket(PF_UNIX, SOCK_DGRAM, 0);
47
48    if (client_comsoc < 0) {
49        return;
50    }
51
52    memset(&client_addr, 0, sizeof(struct sockaddr_un));
53    client_addr.sun_family = AF_UNIX;
54    snprintf(client_addr.sun_path, UNIX_PATH_MAX, TOUCHBOOST_SOCKET);
55
56    rc = sendto(client_comsoc, "1", 1, 0, (const struct sockaddr *)&client_addr, sizeof(struct sockaddr_un));
57
58    if (rc == -1) {
59        ALOGE("Failed to send rc=%d", rc);
60    }
61
62    if (client_comsoc >= 0) {
63        close(client_comsoc);
64        client_comsoc = -1;
65    }
66}
67
68static void power_hint(struct power_module *module, power_hint_t hint,
69                       void *data) {
70    switch (hint) {
71
72        case POWER_HINT_INTERACTION:
73            touch_boost();
74	    break;
75        default:
76             break;
77    }
78}
79
80static struct hw_module_methods_t power_module_methods = {
81    .open = NULL,
82};
83
84struct power_module HAL_MODULE_INFO_SYM = {
85    .common = {
86        .tag = HARDWARE_MODULE_TAG,
87        .module_api_version = POWER_MODULE_API_VERSION_0_2,
88        .hal_api_version = HARDWARE_HAL_API_VERSION,
89        .id = POWER_HARDWARE_MODULE_ID,
90        .name = "Qualcomm Power HAL",
91        .author = "The Android Open Source Project",
92        .methods = &power_module_methods,
93    },
94
95    .init = power_init,
96    .setInteractive = power_set_interactive,
97    .powerHint = power_hint,
98};
99