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 <malloc.h>
18#include <string.h>
19
20#include <cutils/log.h>
21#include <hardware/hardware.h>
22#include <hardware/nfc.h>
23
24
25/*
26 * NCI HAL method implementations. These must be overriden
27 */
28static int hal_open(const struct nfc_nci_device *dev,
29        nfc_stack_callback_t *p_cback, nfc_stack_data_callback_t *p_data_cback) {
30    ALOGE("NFC-NCI HAL: %s", __FUNCTION__);
31    return 0;
32}
33
34static int hal_write(const struct nfc_nci_device *dev,
35        uint16_t data_len, const uint8_t *p_data) {
36    ALOGE("NFC-NCI HAL: %s", __FUNCTION__);
37    return 0;
38}
39
40static int hal_core_initialized(const struct nfc_nci_device *dev,
41        uint8_t* p_core_init_rsp_params) {
42    ALOGE("NFC-NCI HAL: %s", __FUNCTION__);
43    return 0;
44}
45
46static int hal_pre_discover(const struct nfc_nci_device *dev) {
47    ALOGE("NFC-NCI HAL: %s", __FUNCTION__);
48    return 0;
49}
50
51static int hal_close(const struct nfc_nci_device *dev) {
52    ALOGE("NFC-NCI HAL: %s", __FUNCTION__);
53    return 0;
54}
55
56static int hal_control_granted (const struct nfc_nci_device *p_dev)
57{
58    ALOGE("NFC-NCI HAL: %s", __FUNCTION__);
59    return 0;
60}
61
62
63static int hal_power_cycle (const struct nfc_nci_device *p_dev)
64{
65    ALOGE("NFC-NCI HAL: %s", __FUNCTION__);
66    return 0;
67}
68
69/*
70 * Generic device handling below - can generally be left unchanged.
71 */
72/* Close an opened nfc device instance */
73static int nfc_close(hw_device_t *dev) {
74    free(dev);
75    return 0;
76}
77
78static int nfc_open(const hw_module_t* module, const char* name,
79        hw_device_t** device) {
80    if (strcmp(name, NFC_NCI_CONTROLLER) == 0) {
81        nfc_nci_device_t *dev = calloc(1, sizeof(nfc_nci_device_t));
82
83        dev->common.tag = HARDWARE_DEVICE_TAG;
84        dev->common.version = 0x00010000; // [31:16] major, [15:0] minor
85        dev->common.module = (struct hw_module_t*) module;
86        dev->common.close = nfc_close;
87
88        // NCI HAL method pointers
89        dev->open = hal_open;
90        dev->write = hal_write;
91        dev->core_initialized = hal_core_initialized;
92        dev->pre_discover = hal_pre_discover;
93        dev->close = hal_close;
94        dev->control_granted = hal_control_granted;
95        dev->power_cycle = hal_power_cycle;
96
97        *device = (hw_device_t*) dev;
98
99        return 0;
100    } else {
101        return -EINVAL;
102    }
103}
104
105
106static struct hw_module_methods_t nfc_module_methods = {
107    .open = nfc_open,
108};
109
110struct nfc_nci_module_t HAL_MODULE_INFO_SYM = {
111    .common = {
112        .tag = HARDWARE_MODULE_TAG,
113        .module_api_version = 0x0100, // [15:8] major, [7:0] minor (1.0)
114        .hal_api_version = 0x00, // 0 is only valid value
115        .id = NFC_NCI_HARDWARE_MODULE_ID,
116        .name = "Default NFC NCI HW HAL",
117        .author = "The Android Open Source Project",
118        .methods = &nfc_module_methods,
119    },
120};
121