1 /******************************************************************************
2 *
3 * Copyright (C) 1999-2012 Broadcom Corporation
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 ******************************************************************************/
18
19
20 #define LOG_TAG "NfcNciHal"
21 #include "OverrideLog.h"
22 #include <errno.h>
23 #include <hardware/hardware.h>
24 #include <hardware/nfc.h>
25 #include "HalAdaptation.h"
26
27
28 /*********************************
29 * NCI HAL method implementations.
30 *********************************/
31
32
hal_open(const struct nfc_nci_device * p_dev,nfc_stack_callback_t * p_hal_cback,nfc_stack_data_callback_t * p_hal_data_callback)33 static int hal_open (const struct nfc_nci_device *p_dev, nfc_stack_callback_t *p_hal_cback, nfc_stack_data_callback_t *p_hal_data_callback)
34 {
35 int retval = 0;
36 bcm2079x_dev_t *dev = (bcm2079x_dev_t*) p_dev;
37
38 retval = HaiOpen (dev, p_hal_cback, p_hal_data_callback);
39 return retval;
40 }
41
42
hal_write(const struct nfc_nci_device * p_dev,uint16_t data_len,const uint8_t * p_data)43 static int hal_write (const struct nfc_nci_device *p_dev,
44 uint16_t data_len, const uint8_t *p_data)
45 {
46 int retval = 0;
47 bcm2079x_dev_t* dev = (bcm2079x_dev_t*) p_dev;
48
49 retval = HaiWrite (dev, data_len, p_data);
50 return retval;
51 }
52
53
hal_core_initialized(const struct nfc_nci_device * p_dev,uint8_t * p_core_init_rsp_params)54 static int hal_core_initialized (const struct nfc_nci_device *p_dev,
55 uint8_t* p_core_init_rsp_params)
56 {
57 int retval = 0;
58 bcm2079x_dev_t* dev = (bcm2079x_dev_t*) p_dev;
59
60 retval = HaiCoreInitialized (dev, p_core_init_rsp_params);
61 return retval;
62 }
63
64
hal_pre_discover(const struct nfc_nci_device * p_dev)65 static int hal_pre_discover (const struct nfc_nci_device *p_dev)
66 {
67 int retval = 0;
68 bcm2079x_dev_t* dev = (bcm2079x_dev_t*) p_dev;
69
70 retval = HaiPreDiscover (dev);
71 return retval;
72 }
73
74
hal_close(const struct nfc_nci_device * p_dev)75 static int hal_close (const struct nfc_nci_device *p_dev)
76 {
77 int retval = 0;
78 bcm2079x_dev_t* dev = (bcm2079x_dev_t*) p_dev;
79
80 retval = HaiClose (dev);
81 return retval;
82 }
83
84
hal_control_granted(const struct nfc_nci_device * p_dev)85 static int hal_control_granted (const struct nfc_nci_device *p_dev)
86 {
87 int retval = 0;
88 bcm2079x_dev_t* dev = (bcm2079x_dev_t*) p_dev;
89
90 retval = HaiControlGranted (dev);
91 return retval;
92 }
93
94
hal_power_cycle(const struct nfc_nci_device * p_dev)95 static int hal_power_cycle (const struct nfc_nci_device *p_dev)
96 {
97 int retval = 0;
98 bcm2079x_dev_t* dev = (bcm2079x_dev_t*) p_dev;
99
100 retval = HaiPowerCycle (dev);
101 return retval;
102 }
103
104
hal_get_max_nfcee(const struct nfc_nci_device * p_dev,uint8_t * maxNfcee)105 static int hal_get_max_nfcee (const struct nfc_nci_device *p_dev, uint8_t* maxNfcee)
106 {
107 int retval = 0;
108 bcm2079x_dev_t* dev = (bcm2079x_dev_t*) p_dev;
109
110 retval = HaiGetMaxNfcee (dev, maxNfcee);
111 return retval;
112 }
113
114 /*************************************
115 * Generic device handling.
116 *************************************/
117
118
119 /* Close an opened nfc device instance */
nfc_close(hw_device_t * dev)120 static int nfc_close (hw_device_t *dev)
121 {
122 int retval = 0;
123 free (dev);
124 retval = HaiTerminateLibrary ();
125 return retval;
126 }
127
128
nfc_open(const hw_module_t * module,const char * name,hw_device_t ** device)129 static int nfc_open (const hw_module_t* module, const char* name, hw_device_t** device)
130 {
131 ALOGD ("%s: enter; name=%s", __FUNCTION__, name);
132 int retval = 0; //0 is ok; -1 is error
133
134 if (strcmp (name, NFC_NCI_CONTROLLER) == 0)
135 {
136 bcm2079x_dev_t *dev = calloc (1, sizeof(bcm2079x_dev_t));
137
138 // Common hw_device_t fields
139 dev->nci_device.common.tag = HARDWARE_DEVICE_TAG;
140 dev->nci_device.common.version = 0x00010000; // [31:16] major, [15:0] minor
141 dev->nci_device.common.module = (struct hw_module_t*) module;
142 dev->nci_device.common.close = nfc_close;
143
144 // NCI HAL method pointers
145 dev->nci_device.open = hal_open;
146 dev->nci_device.write = hal_write;
147 dev->nci_device.core_initialized = hal_core_initialized;
148 dev->nci_device.pre_discover = hal_pre_discover;
149 dev->nci_device.close = hal_close;
150 dev->nci_device.control_granted = hal_control_granted;
151 dev->nci_device.power_cycle = hal_power_cycle;
152 // TODO maco commented out for binary HAL compatibility
153 // dev->nci_device.get_max_ee = hal_get_max_nfcee;
154
155
156 // Copy in
157 *device = (hw_device_t*) dev;
158
159 retval = HaiInitializeLibrary (dev);
160 }
161 else
162 {
163 retval = -EINVAL;
164 }
165 ALOGD ("%s: exit %d", __FUNCTION__, retval);
166 return retval;
167 }
168
169
170 static struct hw_module_methods_t nfc_module_methods =
171 {
172 .open = nfc_open,
173 };
174
175
176 struct nfc_nci_module_t HAL_MODULE_INFO_SYM =
177 {
178 .common =
179 {
180 .tag = HARDWARE_MODULE_TAG, .module_api_version = 0x0100, // [15:8] major, [7:0] minor (1.0)
181 .hal_api_version = 0x00, // 0 is only valid value
182 .id = NFC_NCI_HARDWARE_MODULE_ID,
183 .name = "Default NFC NCI HW HAL",
184 .author = "The Android Open Source Project",
185 .methods = &nfc_module_methods,
186 },
187 };
188