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 <log/log.h> 21 22 #include <hardware/hardware.h> 23 #include <hardware/nfc.h> 24 25 /* 26 * NCI HAL method implementations. These must be overriden 27 */ 28 static int hal_open(const struct nfc_nci_device* /*dev*/, 29 nfc_stack_callback_t* /*p_cback*/, 30 nfc_stack_data_callback_t* /*p_data_cback*/) { 31 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 32 return 0; 33 } 34 35 static int hal_write(const struct nfc_nci_device* /*dev*/, 36 uint16_t /*data_len*/, const uint8_t* /*p_data*/) { 37 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 38 return 0; 39 } 40 41 static int hal_core_initialized(const struct nfc_nci_device* /*dev*/, 42 uint8_t* /*p_core_init_rsp_params*/) { 43 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 44 return 0; 45 } 46 47 static int hal_pre_discover(const struct nfc_nci_device* /*dev*/) { 48 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 49 return 0; 50 } 51 52 static int hal_close(const struct nfc_nci_device* /*dev*/) { 53 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 54 return 0; 55 } 56 57 static int hal_control_granted (const struct nfc_nci_device* /*p_dev*/) 58 { 59 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 60 return 0; 61 } 62 63 64 static int hal_power_cycle (const struct nfc_nci_device* /*p_dev*/) 65 { 66 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 67 return 0; 68 } 69 70 /* 71 * Generic device handling below - can generally be left unchanged. 72 */ 73 /* Close an opened nfc device instance */ 74 static int nfc_close(hw_device_t *dev) { 75 free(dev); 76 return 0; 77 } 78 79 static int nfc_open(const hw_module_t* module, const char* name, 80 hw_device_t** device) { 81 if (strcmp(name, NFC_NCI_CONTROLLER) == 0) { 82 nfc_nci_device_t *dev = static_cast<nfc_nci_device_t*>( 83 calloc(1, sizeof(nfc_nci_device_t))); 84 85 dev->common.tag = HARDWARE_DEVICE_TAG; 86 dev->common.version = 0x00010000; // [31:16] major, [15:0] minor 87 dev->common.module = (struct hw_module_t*) module; 88 dev->common.close = nfc_close; 89 90 // NCI HAL method pointers 91 dev->open = hal_open; 92 dev->write = hal_write; 93 dev->core_initialized = hal_core_initialized; 94 dev->pre_discover = hal_pre_discover; 95 dev->close = hal_close; 96 dev->control_granted = hal_control_granted; 97 dev->power_cycle = hal_power_cycle; 98 99 *device = (hw_device_t*) dev; 100 101 return 0; 102 } else { 103 return -EINVAL; 104 } 105 } 106 107 108 static struct hw_module_methods_t nfc_module_methods = { 109 .open = nfc_open, 110 }; 111 112 struct nfc_nci_module_t HAL_MODULE_INFO_SYM = { 113 .common = { 114 .tag = HARDWARE_MODULE_TAG, 115 .module_api_version = 0x0100, // [15:8] major, [7:0] minor (1.0) 116 .hal_api_version = 0x00, // 0 is only valid value 117 .id = NFC_NCI_HARDWARE_MODULE_ID, 118 .name = "Default NFC NCI HW HAL", 119 .author = "The Android Open Source Project", 120 .methods = &nfc_module_methods, 121 }, 122 }; 123
