1 /*
2 * Copyright (C) 2013 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
17 #include <stdlib.h>
18
19 #include <cutils/log.h>
20
21 #include <qemu.h>
22 #include <hardware/hardware.h>
23 #include <hardware/vibrator.h>
24
sendit(unsigned int timeout_ms)25 static int sendit(unsigned int timeout_ms)
26 {
27 if (qemu_check()) {
28 if (qemu_control_command("vibrator:%u", timeout_ms) < 0) {
29 return -errno;
30 }
31 return 0;
32 }
33
34 return -ENOSYS;
35 }
36
qemu_vibra_on(vibrator_device_t * vibradev __unused,unsigned int timeout_ms)37 static int qemu_vibra_on(vibrator_device_t* vibradev __unused, unsigned int timeout_ms)
38 {
39 return sendit(timeout_ms);
40 }
41
qemu_vibra_off(vibrator_device_t * vibradev __unused)42 static int qemu_vibra_off(vibrator_device_t* vibradev __unused)
43 {
44 return sendit(0);
45 }
46
qemu_vibra_close(hw_device_t * device)47 static int qemu_vibra_close(hw_device_t *device)
48 {
49 free(device);
50 return 0;
51 }
52
qemu_vibra_open(const hw_module_t * module,const char * id __unused,hw_device_t ** device)53 static int qemu_vibra_open(const hw_module_t* module, const char* id __unused,
54 hw_device_t** device) {
55 vibrator_device_t *vibradev = calloc(1, sizeof(vibrator_device_t));
56
57 if (!vibradev) {
58 ALOGE("No memory available to create Goldfish vibrator device!");
59 return -ENOMEM;
60 }
61
62 vibradev->common.tag = HARDWARE_DEVICE_TAG;
63 vibradev->common.module = (hw_module_t *) module;
64 vibradev->common.version = HARDWARE_DEVICE_API_VERSION(1,0);
65 vibradev->common.close = qemu_vibra_close;
66
67 vibradev->vibrator_on = qemu_vibra_on;
68 vibradev->vibrator_off = qemu_vibra_off;
69
70 *device = (hw_device_t *) vibradev;
71
72 return 0;
73 }
74
75 /*===========================*/
76 /* Emulator vibrator module */
77 /*===========================*/
78
79 static struct hw_module_methods_t qemu_vibrator_module_methods = {
80 .open = qemu_vibra_open,
81 };
82
83 struct hw_module_t HAL_MODULE_INFO_SYM = {
84 .tag = HARDWARE_MODULE_TAG,
85 .module_api_version = VIBRATOR_API_VERSION,
86 .hal_api_version = HARDWARE_HAL_API_VERSION,
87 .id = VIBRATOR_HARDWARE_MODULE_ID,
88 .name = "Goldfish vibrator module",
89 .author = "The Android Open Source Project",
90 .methods = &qemu_vibrator_module_methods,
91 };
92