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 <string.h> 18 19 #include <cutils/log.h> 20 #include <hardware/hardware.h> 21 #include <hardware/nfc.h> 22 23 24 /* 25 * NCI HAL method implementations. These must be overriden 26 */ 27 static int hal_open(const struct nfc_nci_device *dev, 28 nfc_stack_callback_t *p_cback, nfc_stack_data_callback_t *p_data_cback) { 29 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 30 return 0; 31 } 32 33 static int hal_write(const struct nfc_nci_device *dev, 34 uint16_t data_len, const uint8_t *p_data) { 35 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 36 return 0; 37 } 38 39 static int hal_core_initialized(const struct nfc_nci_device *dev, 40 uint8_t* p_core_init_rsp_params) { 41 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 42 return 0; 43 } 44 45 static int hal_pre_discover(const struct nfc_nci_device *dev) { 46 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 47 return 0; 48 } 49 50 static int hal_close(const struct nfc_nci_device *dev) { 51 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 52 return 0; 53 } 54 55 static int hal_control_granted (const struct nfc_nci_device *p_dev) 56 { 57 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 58 return 0; 59 } 60 61 62 static int hal_power_cycle (const struct nfc_nci_device *p_dev) 63 { 64 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 65 return 0; 66 } 67 68 /* 69 * Generic device handling below - can generally be left unchanged. 70 */ 71 /* Close an opened nfc device instance */ 72 static int nfc_close(hw_device_t *dev) { 73 free(dev); 74 return 0; 75 } 76 77 static int nfc_open(const hw_module_t* module, const char* name, 78 hw_device_t** device) { 79 if (strcmp(name, NFC_NCI_CONTROLLER) == 0) { 80 nfc_nci_device_t *dev = calloc(1, sizeof(nfc_nci_device_t)); 81 82 dev->common.tag = HARDWARE_DEVICE_TAG; 83 dev->common.version = 0x00010000; // [31:16] major, [15:0] minor 84 dev->common.module = (struct hw_module_t*) module; 85 dev->common.close = nfc_close; 86 87 // NCI HAL method pointers 88 dev->open = hal_open; 89 dev->write = hal_write; 90 dev->core_initialized = hal_core_initialized; 91 dev->pre_discover = hal_pre_discover; 92 dev->close = hal_close; 93 dev->control_granted = hal_control_granted; 94 dev->power_cycle = hal_power_cycle; 95 96 *device = (hw_device_t*) dev; 97 98 return 0; 99 } else { 100 return -EINVAL; 101 } 102 } 103 104 105 static struct hw_module_methods_t nfc_module_methods = { 106 .open = nfc_open, 107 }; 108 109 struct nfc_nci_module_t HAL_MODULE_INFO_SYM = { 110 .common = { 111 .tag = HARDWARE_MODULE_TAG, 112 .module_api_version = 0x0100, // [15:8] major, [7:0] minor (1.0) 113 .hal_api_version = 0x00, // 0 is only valid value 114 .id = NFC_NCI_HARDWARE_MODULE_ID, 115 .name = "Default NFC NCI HW HAL", 116 .author = "The Android Open Source Project", 117 .methods = &nfc_module_methods, 118 }, 119 }; 120
