1/* 2 * Copyright 2008, Axel D��rfler, axeld@pinc-software.de. All rights reserved. 3 * Distributed under the terms of the MIT License. 4 */ 5 6 7#include "bus.h" 8 9#include <KernelExport.h> 10 11 12#define DRIVER_MODULE_NAME "drivers/net/sample_driver/driver_v1" 13#define DRIVER_DEVICE_MODULE_NAME "drivers/net/sample_driver/device_v1" 14 15 16// #pragma mark - driver 17 18 19static float 20supports_device(device_node* parent) 21{ 22#if 0 23 const char* bus; 24 if (gDeviceManager->get_attr_string(parent, B_DRIVER_BUS, &bus, false) 25 != B_OK) 26 return -1; 27 28 if (bus == NULL || strcmp(bus, BUS_NAME)) 29 return -1; 30#endif 31 32 bus_for_driver_module_info* module; 33 void* data; 34 gDeviceManager->get_driver(parent, (driver_module_info**)&module, &data); 35 36 if (strcmp(module->info.info.name, BUS_FOR_DRIVER_NAME)) 37 return -1; 38 39 bus_info info; 40 if (module->get_bus_info(data, &info) == B_OK 41 && info.vendor_id == 0x1001 42 && info.device_id == 0x0001) 43 return 1.0; 44 45 return 0.0; 46} 47 48 49static status_t 50register_device(device_node* parent) 51{ 52 return gDeviceManager->register_node(parent, DRIVER_MODULE_NAME, NULL, 53 NULL, NULL); 54} 55 56 57static status_t 58init_driver(device_node* node, void** _cookie) 59{ 60 *_cookie = node; 61 return B_OK; 62} 63 64 65static void 66uninit_driver(void* cookie) 67{ 68} 69 70 71static status_t 72register_child_devices(void* cookie) 73{ 74 device_node* node = (device_node*)cookie; 75 76 gDeviceManager->publish_device(node, "net/sample/0", 77 DRIVER_DEVICE_MODULE_NAME); 78 return B_OK; 79} 80 81 82static void 83driver_device_removed(void* cookie) 84{ 85} 86 87 88// #pragma mark - device 89 90 91static status_t 92init_device(void* driverCookie, void** _deviceCookie) 93{ 94 // called once before one or several open() calls 95 return B_OK; 96} 97 98 99static void 100uninit_device(void* deviceCookie) 101{ 102 // supposed to free deviceCookie, called when the last reference to 103 // the device is closed 104} 105 106 107static void 108device_removed(void* deviceCookie) 109{ 110 dprintf("network device removed!\n"); 111} 112 113 114static status_t 115device_open(void* deviceCookie, int openMode, void** _cookie) 116{ 117 // deviceCookie is an object attached to the published device 118 return B_ERROR; 119} 120 121 122static status_t 123device_close(void* cookie) 124{ 125 return B_ERROR; 126} 127 128 129static status_t 130device_free(void* cookie) 131{ 132 return B_ERROR; 133} 134 135 136static status_t 137device_read(void* cookie, off_t pos, void* buffer, size_t* _length) 138{ 139 return B_ERROR; 140} 141 142 143static status_t 144device_write(void* cookie, off_t pos, const void* buffer, size_t* _length) 145{ 146 return B_ERROR; 147} 148 149 150static status_t 151device_ioctl(void* cookie, int32 op, void* buffer, size_t length) 152{ 153 return B_ERROR; 154} 155 156 157static status_t 158device_io(void* cookie, io_request* request) 159{ 160 // new function to deal with I/O requests directly. 161 return B_ERROR; 162} 163 164 165// #pragma mark - 166 167 168struct driver_module_info gDriverModuleInfo = { 169 { 170 DRIVER_MODULE_NAME, 171 0, 172 NULL, 173 }, 174 175 supports_device, 176 register_device, 177 init_driver, 178 uninit_driver, 179 register_child_devices, 180 NULL, 181 driver_device_removed, 182}; 183 184struct device_module_info gDeviceModuleInfo = { 185 { 186 DRIVER_DEVICE_MODULE_NAME, 187 0, 188 NULL, 189 }, 190 191 init_device, 192 uninit_device, 193 device_removed, 194 195 device_open, 196 device_close, 197 device_free, 198 device_read, 199 device_write, 200 device_ioctl, 201 device_io, 202}; 203