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 <errno.h> 18 #include <stdlib.h> 19 20 #include <cutils/log.h> 21 22 #define QEMU_HARDWARE 23 #include <qemu.h> 24 #include <hardware/hardware.h> 25 #include <hardware/vibrator.h> 26 27 static int sendit(unsigned int timeout_ms) 28 { 29 if (qemu_check()) { 30 if (qemu_control_command("vibrator:%u", timeout_ms) < 0) { 31 return -errno; 32 } 33 return 0; 34 } 35 36 return -ENOSYS; 37 } 38 39 static int qemu_vibra_on(vibrator_device_t* vibradev __unused, unsigned int timeout_ms) 40 { 41 return sendit(timeout_ms); 42 } 43 44 static int qemu_vibra_off(vibrator_device_t* vibradev __unused) 45 { 46 return sendit(0); 47 } 48 49 static int qemu_vibra_close(hw_device_t *device) 50 { 51 free(device); 52 return 0; 53 } 54 55 static int qemu_vibra_open(const hw_module_t* module, const char* id __unused, 56 hw_device_t** device) { 57 vibrator_device_t *vibradev = calloc(1, sizeof(vibrator_device_t)); 58 59 if (!vibradev) { 60 ALOGE("No memory available to create Goldfish vibrator device!"); 61 return -ENOMEM; 62 } 63 64 vibradev->common.tag = HARDWARE_DEVICE_TAG; 65 vibradev->common.module = (hw_module_t *) module; 66 vibradev->common.version = HARDWARE_DEVICE_API_VERSION(1,0); 67 vibradev->common.close = qemu_vibra_close; 68 69 vibradev->vibrator_on = qemu_vibra_on; 70 vibradev->vibrator_off = qemu_vibra_off; 71 72 *device = (hw_device_t *) vibradev; 73 74 return 0; 75 } 76 77 /*===========================*/ 78 /* Emulator vibrator module */ 79 /*===========================*/ 80 81 static struct hw_module_methods_t qemu_vibrator_module_methods = { 82 .open = qemu_vibra_open, 83 }; 84 85 struct hw_module_t HAL_MODULE_INFO_SYM = { 86 .tag = HARDWARE_MODULE_TAG, 87 .module_api_version = VIBRATOR_API_VERSION, 88 .hal_api_version = HARDWARE_HAL_API_VERSION, 89 .id = VIBRATOR_HARDWARE_MODULE_ID, 90 .name = "Goldfish vibrator module", 91 .author = "The Android Open Source Project", 92 .methods = &qemu_vibrator_module_methods, 93 }; 94