1 /*
2  * Copyright (C) 2011 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 <malloc.h>
18 #include <string.h>
19 
20 #include <hardware/hardware.h>
21 #include <hardware/nfc.h>
22 
23 /* Close an opened pn544 device instance */
24 static int pn544_close(hw_device_t *dev) {
25     free(dev);
26     return 0;
27 }
28 
29 /*
30  * Generic device handling
31  */
32 static int nfc_open(const hw_module_t* module, const char* name,
33         hw_device_t** device) {
34     if (strcmp(name, NFC_PN544_CONTROLLER) == 0) {
35         nfc_pn544_device_t *dev = calloc(1, sizeof(nfc_pn544_device_t));
36 
37         dev->common.tag = HARDWARE_DEVICE_TAG;
38         dev->common.version = 0;
39         dev->common.module = (struct hw_module_t*) module;
40         dev->common.close = pn544_close;
41 
42         /* Example settings */
43         dev->num_eeprom_settings = 0;
44         dev->eeprom_settings = NULL;
45         dev->linktype = PN544_LINK_TYPE_INVALID;
46         dev->device_node = NULL;
47         dev->enable_i2c_workaround = 0;
48         dev->i2c_device_address = 0;
49 
50         *device = (hw_device_t*) dev;
51         return 0;
52     } else {
53         return -EINVAL;
54     }
55 }
56 
57 
58 static struct hw_module_methods_t nfc_module_methods = {
59     .open = nfc_open,
60 };
61 
62 struct nfc_module_t HAL_MODULE_INFO_SYM = {
63     .common = {
64         .tag = HARDWARE_MODULE_TAG,
65         .version_major = 1,
66         .version_minor = 0,
67         .id = NFC_HARDWARE_MODULE_ID,
68         .name = "Default NFC HW HAL",
69         .author = "The Android Open Source Project",
70         .methods = &nfc_module_methods,
71     },
72 };
73