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 */
hal_open(const struct nfc_nci_device * dev,nfc_stack_callback_t * p_cback,nfc_stack_data_callback_t * p_data_cback)28 static 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
hal_write(const struct nfc_nci_device * dev,uint16_t data_len,const uint8_t * p_data)34 static 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
hal_core_initialized(const struct nfc_nci_device * dev,uint8_t * p_core_init_rsp_params)40 static 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
hal_pre_discover(const struct nfc_nci_device * dev)46 static int hal_pre_discover(const struct nfc_nci_device *dev) {
47 ALOGE("NFC-NCI HAL: %s", __FUNCTION__);
48 return 0;
49 }
50
hal_close(const struct nfc_nci_device * dev)51 static int hal_close(const struct nfc_nci_device *dev) {
52 ALOGE("NFC-NCI HAL: %s", __FUNCTION__);
53 return 0;
54 }
55
hal_control_granted(const struct nfc_nci_device * p_dev)56 static 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
hal_power_cycle(const struct nfc_nci_device * p_dev)63 static 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 */
nfc_close(hw_device_t * dev)73 static int nfc_close(hw_device_t *dev) {
74 free(dev);
75 return 0;
76 }
77
nfc_open(const hw_module_t * module,const char * name,hw_device_t ** device)78 static 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
106 static struct hw_module_methods_t nfc_module_methods = {
107 .open = nfc_open,
108 };
109
110 struct 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