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 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 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 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 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 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 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 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 } 103 104 105 /************************************* 106 * Generic device handling. 107 *************************************/ 108 109 110 /* Close an opened nfc device instance */ 111 static int nfc_close (hw_device_t *dev) 112 { 113 int retval = 0; 114 free (dev); 115 retval = HaiTerminateLibrary (); 116 return retval; 117 } 118 119 120 static int nfc_open (const hw_module_t* module, const char* name, hw_device_t** device) 121 { 122 ALOGD ("%s: enter; name=%s", __FUNCTION__, name); 123 int retval = 0; //0 is ok; -1 is error 124 125 if (strcmp (name, NFC_NCI_CONTROLLER) == 0) 126 { 127 bcm2079x_dev_t *dev = calloc (1, sizeof(bcm2079x_dev_t)); 128 129 // Common hw_device_t fields 130 dev->nci_device.common.tag = HARDWARE_DEVICE_TAG; 131 dev->nci_device.common.version = 0x00010000; // [31:16] major, [15:0] minor 132 dev->nci_device.common.module = (struct hw_module_t*) module; 133 dev->nci_device.common.close = nfc_close; 134 135 // NCI HAL method pointers 136 dev->nci_device.open = hal_open; 137 dev->nci_device.write = hal_write; 138 dev->nci_device.core_initialized = hal_core_initialized; 139 dev->nci_device.pre_discover = hal_pre_discover; 140 dev->nci_device.close = hal_close; 141 dev->nci_device.control_granted = hal_control_granted; 142 dev->nci_device.power_cycle = hal_power_cycle; 143 144 145 // Copy in 146 *device = (hw_device_t*) dev; 147 148 retval = HaiInitializeLibrary (dev); 149 } 150 else 151 { 152 retval = -EINVAL; 153 } 154 ALOGD ("%s: exit %d", __FUNCTION__, retval); 155 return retval; 156 } 157 158 159 static struct hw_module_methods_t nfc_module_methods = 160 { 161 .open = nfc_open, 162 }; 163 164 165 struct nfc_nci_module_t HAL_MODULE_INFO_SYM = 166 { 167 .common = 168 { 169 .tag = HARDWARE_MODULE_TAG, .module_api_version = 0x0100, // [15:8] major, [7:0] minor (1.0) 170 .hal_api_version = 0x00, // 0 is only valid value 171 .id = NFC_NCI_HARDWARE_MODULE_ID, 172 .name = "Default NFC NCI HW HAL", 173 .author = "The Android Open Source Project", 174 .methods = &nfc_module_methods, 175 }, 176 }; 177
