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 <malloc.h> 24 #include <string.h> 25 #include <hardware/hardware.h> 26 #include <hardware/nfc.h> 27 #include "HalAdaptation.h" 28 29 30 /********************************* 31 * NCI HAL method implementations. 32 *********************************/ 33 34 35 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) 36 { 37 int retval = 0; 38 bcm2079x_dev_t *dev = (bcm2079x_dev_t*) p_dev; 39 40 retval = HaiOpen (dev, p_hal_cback, p_hal_data_callback); 41 return retval; 42 } 43 44 45 static int hal_write (const struct nfc_nci_device *p_dev, 46 uint16_t data_len, const uint8_t *p_data) 47 { 48 int retval = 0; 49 bcm2079x_dev_t* dev = (bcm2079x_dev_t*) p_dev; 50 51 retval = HaiWrite (dev, data_len, p_data); 52 return retval; 53 } 54 55 56 static int hal_core_initialized (const struct nfc_nci_device *p_dev, 57 uint8_t* p_core_init_rsp_params) 58 { 59 int retval = 0; 60 bcm2079x_dev_t* dev = (bcm2079x_dev_t*) p_dev; 61 62 retval = HaiCoreInitialized (dev, p_core_init_rsp_params); 63 return retval; 64 } 65 66 67 static int hal_pre_discover (const struct nfc_nci_device *p_dev) 68 { 69 int retval = 0; 70 bcm2079x_dev_t* dev = (bcm2079x_dev_t*) p_dev; 71 72 retval = HaiPreDiscover (dev); 73 return retval; 74 } 75 76 77 static int hal_close (const struct nfc_nci_device *p_dev) 78 { 79 int retval = 0; 80 bcm2079x_dev_t* dev = (bcm2079x_dev_t*) p_dev; 81 82 retval = HaiClose (dev); 83 return retval; 84 } 85 86 87 static int hal_control_granted (const struct nfc_nci_device *p_dev) 88 { 89 int retval = 0; 90 bcm2079x_dev_t* dev = (bcm2079x_dev_t*) p_dev; 91 92 retval = HaiControlGranted (dev); 93 return retval; 94 } 95 96 97 static int hal_power_cycle (const struct nfc_nci_device *p_dev) 98 { 99 int retval = 0; 100 bcm2079x_dev_t* dev = (bcm2079x_dev_t*) p_dev; 101 102 retval = HaiPowerCycle (dev); 103 return retval; 104 } 105 106 107 static int hal_get_max_nfcee (const struct nfc_nci_device *p_dev, uint8_t* maxNfcee) 108 { 109 int retval = 0; 110 bcm2079x_dev_t* dev = (bcm2079x_dev_t*) p_dev; 111 112 retval = HaiGetMaxNfcee (dev, maxNfcee); 113 return retval; 114 } 115 116 117 /************************************* 118 * Generic device handling. 119 *************************************/ 120 121 122 /* Close an opened nfc device instance */ 123 static int nfc_close (hw_device_t *dev) 124 { 125 int retval = 0; 126 free (dev); 127 retval = HaiTerminateLibrary (); 128 return retval; 129 } 130 131 132 static int nfc_open (const hw_module_t* module, const char* name, hw_device_t** device) 133 { 134 ALOGD ("%s: enter; name=%s", __FUNCTION__, name); 135 int retval = 0; //0 is ok; -1 is error 136 137 if (strcmp (name, NFC_NCI_CONTROLLER) == 0) 138 { 139 bcm2079x_dev_t *dev = calloc (1, sizeof(bcm2079x_dev_t)); 140 141 // Common hw_device_t fields 142 dev->nci_device.common.tag = HARDWARE_DEVICE_TAG; 143 dev->nci_device.common.version = 0x00010000; // [31:16] major, [15:0] minor 144 dev->nci_device.common.module = (struct hw_module_t*) module; 145 dev->nci_device.common.close = nfc_close; 146 147 // NCI HAL method pointers 148 dev->nci_device.open = hal_open; 149 dev->nci_device.write = hal_write; 150 dev->nci_device.core_initialized = hal_core_initialized; 151 dev->nci_device.pre_discover = hal_pre_discover; 152 dev->nci_device.close = hal_close; 153 dev->nci_device.control_granted = hal_control_granted; 154 dev->nci_device.power_cycle = hal_power_cycle; 155 //dev->nci_device.get_max_ee = hal_get_max_nfcee; 156 157 158 // Copy in 159 *device = (hw_device_t*) dev; 160 161 retval = HaiInitializeLibrary (dev); 162 } 163 else 164 { 165 retval = -EINVAL; 166 } 167 ALOGD ("%s: exit %d", __FUNCTION__, retval); 168 return retval; 169 } 170 171 172 static struct hw_module_methods_t nfc_module_methods = 173 { 174 .open = nfc_open, 175 }; 176 177 178 struct nfc_nci_module_t HAL_MODULE_INFO_SYM = 179 { 180 .common = 181 { 182 .tag = HARDWARE_MODULE_TAG, .module_api_version = 0x0100, // [15:8] major, [7:0] minor (1.0) 183 .hal_api_version = 0x00, // 0 is only valid value 184 .id = NFC_NCI_BCM2079X_HARDWARE_MODULE_ID, 185 .name = "BCM2079x NFC NCI HW HAL", 186 .author = "Broadcom Corporation", 187 .methods = &nfc_module_methods, 188 }, 189 }; 190
