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#define LOG_TAG "NfcNciHal"
20#include <errno.h>
21#include <hardware/hardware.h>
22#include <hardware/nfc.h>
23#include <malloc.h>
24#include <string.h>
25#include "HalAdaptation.h"
26#include "_OverrideLog.h"
27
28/*********************************
29 * NCI HAL method implementations.
30 *********************************/
31
32static int hal_open(const struct nfc_nci_device* p_dev,
33                    nfc_stack_callback_t* p_hal_cback,
34                    nfc_stack_data_callback_t* p_hal_data_callback) {
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
42static int hal_write(const struct nfc_nci_device* p_dev, uint16_t data_len,
43                     const uint8_t* p_data) {
44  int retval = 0;
45  bcm2079x_dev_t* dev = (bcm2079x_dev_t*)p_dev;
46
47  retval = HaiWrite(dev, data_len, p_data);
48  return retval;
49}
50
51static int hal_core_initialized(const struct nfc_nci_device* p_dev,
52                                uint8_t* p_core_init_rsp_params) {
53  int retval = 0;
54  bcm2079x_dev_t* dev = (bcm2079x_dev_t*)p_dev;
55
56  retval = HaiCoreInitialized(dev, p_core_init_rsp_params);
57  return retval;
58}
59
60static int hal_pre_discover(const struct nfc_nci_device* p_dev) {
61  int retval = 0;
62  bcm2079x_dev_t* dev = (bcm2079x_dev_t*)p_dev;
63
64  retval = HaiPreDiscover(dev);
65  return retval;
66}
67
68static int hal_close(const struct nfc_nci_device* p_dev) {
69  int retval = 0;
70  bcm2079x_dev_t* dev = (bcm2079x_dev_t*)p_dev;
71
72  retval = HaiClose(dev);
73  return retval;
74}
75
76static int hal_control_granted(const struct nfc_nci_device* p_dev) {
77  int retval = 0;
78  bcm2079x_dev_t* dev = (bcm2079x_dev_t*)p_dev;
79
80  retval = HaiControlGranted(dev);
81  return retval;
82}
83
84static int hal_power_cycle(const struct nfc_nci_device* p_dev) {
85  int retval = 0;
86  bcm2079x_dev_t* dev = (bcm2079x_dev_t*)p_dev;
87
88  retval = HaiPowerCycle(dev);
89  return retval;
90}
91
92static int hal_get_max_nfcee(const struct nfc_nci_device* p_dev,
93                             uint8_t* maxNfcee) {
94  int retval = 0;
95  bcm2079x_dev_t* dev = (bcm2079x_dev_t*)p_dev;
96
97  retval = HaiGetMaxNfcee(dev, maxNfcee);
98  return retval;
99}
100
101/*************************************
102 * Generic device handling.
103 *************************************/
104
105/* Close an opened nfc device instance */
106static int nfc_close(hw_device_t* dev) {
107  int retval = 0;
108  free(dev);
109  retval = HaiTerminateLibrary();
110  return retval;
111}
112
113static int nfc_open(const hw_module_t* module, const char* name,
114                    hw_device_t** device) {
115  ALOGD("%s: enter; name=%s", __func__, name);
116  int retval = 0;  // 0 is ok; -1 is error
117
118  if (strcmp(name, NFC_NCI_CONTROLLER) == 0) {
119    bcm2079x_dev_t* dev = calloc(1, sizeof(bcm2079x_dev_t));
120
121    // Common hw_device_t fields
122    dev->nci_device.common.tag = HARDWARE_DEVICE_TAG;
123    dev->nci_device.common.version = 0x00010000;  // [31:16] major, [15:0] minor
124    dev->nci_device.common.module = (struct hw_module_t*)module;
125    dev->nci_device.common.close = nfc_close;
126
127    // NCI HAL method pointers
128    dev->nci_device.open = hal_open;
129    dev->nci_device.write = hal_write;
130    dev->nci_device.core_initialized = hal_core_initialized;
131    dev->nci_device.pre_discover = hal_pre_discover;
132    dev->nci_device.close = hal_close;
133    dev->nci_device.control_granted = hal_control_granted;
134    dev->nci_device.power_cycle = hal_power_cycle;
135    // dev->nci_device.get_max_ee = hal_get_max_nfcee;
136
137    // Copy in
138    *device = (hw_device_t*)dev;
139
140    retval = HaiInitializeLibrary(dev);
141  } else {
142    retval = -EINVAL;
143  }
144  ALOGD("%s: exit %d", __func__, retval);
145  return retval;
146}
147
148static struct hw_module_methods_t nfc_module_methods = {
149    .open = nfc_open,
150};
151
152struct nfc_nci_module_t HAL_MODULE_INFO_SYM = {
153    .common =
154        {
155            .tag = HARDWARE_MODULE_TAG,
156            .module_api_version = 0x0100,  // [15:8] major, [7:0] minor (1.0)
157            .hal_api_version = 0x00,       // 0 is only valid value
158            .id = NFC_NCI_BCM2079X_HARDWARE_MODULE_ID,
159            .name = "BCM2079x NFC NCI HW HAL",
160            .author = "Broadcom Corporation",
161            .methods = &nfc_module_methods,
162        },
163};
164