1 #define LOG_TAG "android.hardware.nfc@1.0-impl"
2
3 #include <log/log.h>
4
5 #include <hardware/hardware.h>
6 #include <hardware/nfc.h>
7 #include "Nfc.h"
8
9 namespace android {
10 namespace hardware {
11 namespace nfc {
12 namespace V1_0 {
13 namespace implementation {
14
15 sp<INfcClientCallback> Nfc::mCallback = nullptr;
16
Nfc(nfc_nci_device_t * device)17 Nfc::Nfc(nfc_nci_device_t* device) : mDevice(device) {}
18
19 // Methods from ::android::hardware::nfc::V1_0::INfc follow.
open(const sp<INfcClientCallback> & clientCallback)20 ::android::hardware::Return<NfcStatus> Nfc::open(const sp<INfcClientCallback>& clientCallback) {
21 mCallback = clientCallback;
22
23 if (mDevice == nullptr || mCallback == nullptr) {
24 return NfcStatus::FAILED;
25 }
26 mCallback->linkToDeath(this, 0 /*cookie*/);
27 int ret = mDevice->open(mDevice, eventCallback, dataCallback);
28 return ret == 0 ? NfcStatus::OK : NfcStatus::FAILED;
29 }
30
write(const hidl_vec<uint8_t> & data)31 ::android::hardware::Return<uint32_t> Nfc::write(const hidl_vec<uint8_t>& data) {
32 if (mDevice == nullptr) {
33 return -1;
34 }
35 return mDevice->write(mDevice, data.size(), &data[0]);
36 }
37
coreInitialized(const hidl_vec<uint8_t> & data)38 ::android::hardware::Return<NfcStatus> Nfc::coreInitialized(const hidl_vec<uint8_t>& data) {
39 hidl_vec<uint8_t> copy = data;
40
41 if (mDevice == nullptr || copy.size() == 0) {
42 return NfcStatus::FAILED;
43 }
44 int ret = mDevice->core_initialized(mDevice, ©[0]);
45 return ret == 0 ? NfcStatus::OK : NfcStatus::FAILED;
46 }
47
prediscover()48 ::android::hardware::Return<NfcStatus> Nfc::prediscover() {
49 if (mDevice == nullptr) {
50 return NfcStatus::FAILED;
51 }
52 return mDevice->pre_discover(mDevice) ? NfcStatus::FAILED : NfcStatus::OK;
53 }
54
close()55 ::android::hardware::Return<NfcStatus> Nfc::close() {
56 if (mDevice == nullptr || mCallback == nullptr) {
57 return NfcStatus::FAILED;
58 }
59 mCallback->unlinkToDeath(this);
60 return mDevice->close(mDevice) ? NfcStatus::FAILED : NfcStatus::OK;
61 }
62
controlGranted()63 ::android::hardware::Return<NfcStatus> Nfc::controlGranted() {
64 if (mDevice == nullptr) {
65 return NfcStatus::FAILED;
66 }
67 return mDevice->control_granted(mDevice) ? NfcStatus::FAILED : NfcStatus::OK;
68 }
69
powerCycle()70 ::android::hardware::Return<NfcStatus> Nfc::powerCycle() {
71 if (mDevice == nullptr) {
72 return NfcStatus::FAILED;
73 }
74 return mDevice->power_cycle(mDevice) ? NfcStatus::FAILED : NfcStatus::OK;
75 }
76
77
HIDL_FETCH_INfc(const char *)78 INfc* HIDL_FETCH_INfc(const char * /*name*/) {
79 nfc_nci_device_t* nfc_device;
80 int ret = 0;
81 const hw_module_t* hw_module = nullptr;
82
83 ret = hw_get_module (NFC_NCI_HARDWARE_MODULE_ID, &hw_module);
84 if (ret == 0) {
85 ret = nfc_nci_open (hw_module, &nfc_device);
86 if (ret != 0) {
87 ALOGE ("nfc_nci_open failed: %d", ret);
88 }
89 }
90 else
91 ALOGE ("hw_get_module %s failed: %d", NFC_NCI_HARDWARE_MODULE_ID, ret);
92
93 if (ret == 0) {
94 return new Nfc(nfc_device);
95 } else {
96 ALOGE("Passthrough failed to load legacy HAL.");
97 return nullptr;
98 }
99 }
100
101 } // namespace implementation
102 } // namespace V1_0
103 } // namespace nfc
104 } // namespace hardware
105 } // namespace android
106