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