1 /* 2 * Copyright 2007, Hugo Santos. All Rights Reserved. 3 * Copyright 2007, Axel Dörfler, axeld@pinc-software.de. All Rights Reserved. 4 * Copyright 2004, Marcus Overhagen. All Rights Reserved. 5 * Distributed under the terms of the MIT License. 6 */ 7 8 9 /*! Driver functions that adapt the FreeBSD driver to Haiku's driver API. 10 The actual driver functions are exported by the HAIKU_FBSD_DRIVER_GLUE 11 macro, and just call the functions here. 12 */ 13 14 15 #include "device.h" 16 17 #include <stdlib.h> 18 #include <sys/sockio.h> 19 20 #include <Drivers.h> 21 #include <ether_driver.h> 22 #include <PCI_x86.h> 23 24 #include <compat/sys/haiku-module.h> 25 26 #include <compat/sys/bus.h> 27 #include <compat/sys/mbuf.h> 28 #include <compat/net/ethernet.h> 29 30 31 //#define TRACE_DRIVER 32 #ifdef TRACE_DRIVER 33 # define TRACE(x) dprintf x 34 #else 35 # define TRACE(x) 36 #endif 37 38 39 const char *gDeviceNameList[MAX_DEVICES + 1]; 40 struct ifnet *gDevices[MAX_DEVICES]; 41 int32 gDeviceCount; 42 43 44 static status_t 45 init_root_device(driver_t *driver, device_t *_root, device_t *_child) 46 { 47 static driver_t sRootDriver = { 48 "pci", 49 NULL, 50 sizeof(struct root_device_softc) 51 }; 52 device_t child; 53 54 device_t root = device_add_child(NULL, NULL, 0); 55 if (root == NULL) 56 return B_NO_MEMORY; 57 58 root->softc = malloc(sizeof(struct root_device_softc)); 59 if (root->softc == NULL) { 60 device_delete_child(NULL, root); 61 return B_NO_MEMORY; 62 } 63 64 root->driver = &sRootDriver; 65 root->root = root; 66 67 child = device_add_child(root, driver->name, 0); 68 if (child == NULL) { 69 device_delete_child(NULL, root); 70 return B_ERROR; 71 } 72 73 if (_root != NULL) 74 *_root = root; 75 if (_child != NULL) 76 *_child = child; 77 78 return B_OK; 79 } 80 81 82 static pci_info * 83 get_pci_info(struct device *device) 84 { 85 return &((struct root_device_softc *)device->softc)->pci_info; 86 } 87 88 89 // #pragma mark - Haiku Driver API 90 91 92 status_t 93 _fbsd_init_hardware(driver_t *driver) 94 { 95 status_t status = B_ENTRY_NOT_FOUND; 96 device_t child, root; 97 pci_info *info; 98 int i; 99 100 if (get_module(B_PCI_MODULE_NAME, (module_info **)&gPci) < B_OK) 101 return B_ERROR; 102 103 if (init_root_device(driver, &root, &child) != B_OK) { 104 dprintf("%s: creating device failed.\n", gDriverName); 105 put_module(B_PCI_MODULE_NAME); 106 return B_ERROR; 107 } 108 109 TRACE(("%s: init_hardware(%p)\n", gDriverName, driver)); 110 111 if (child->methods.probe == NULL) { 112 dprintf("%s: driver has no device_probe method.\n", gDriverName); 113 device_delete_child(NULL, root); 114 put_module(B_PCI_MODULE_NAME); 115 return B_ERROR; 116 } 117 118 info = get_pci_info(root); 119 120 for (i = 0; gPci->get_nth_pci_info(i, info) == B_OK; i++) { 121 int result; 122 result = child->methods.probe(child); 123 if (result >= 0) { 124 TRACE(("%s, found %s at %d\n", gDriverName, 125 device_get_desc(child), i)); 126 status = B_OK; 127 break; 128 } 129 } 130 131 if (status < B_OK) 132 TRACE(("%s: no hardware found.\n", gDriverName)); 133 134 device_delete_child(NULL, root); 135 put_module(B_PCI_MODULE_NAME); 136 137 return status; 138 } 139 140 141 status_t 142 _fbsd_init_driver(driver_t *driver) 143 { 144 status_t status; 145 int i = 0; 146 147 dprintf("%s: init_driver(%p)\n", gDriverName, driver); 148 149 status = get_module(B_PCI_MODULE_NAME, (module_info **)&gPci); 150 if (status < B_OK) 151 return status; 152 153 // if it fails we just don't support x86 specific features (like MSIs) 154 if (get_module(B_PCI_X86_MODULE_NAME, (module_info **)&gPCIx86) != B_OK) 155 gPCIx86 = NULL; 156 157 status = init_hard_clock(); 158 if (status < B_OK) 159 goto err1; 160 161 status = init_mutexes(); 162 if (status < B_OK) 163 goto err2; 164 165 status = init_mbufs(); 166 if (status < B_OK) 167 goto err3; 168 169 status = init_callout(); 170 if (status < B_OK) 171 goto err4; 172 173 init_bounce_pages(); 174 175 if (HAIKU_DRIVER_REQUIRES(FBSD_TASKQUEUES)) { 176 status = init_taskqueues(); 177 if (status < B_OK) 178 goto err5; 179 } 180 181 status = init_wlan_stack(); 182 if (status < B_OK) 183 goto err6; 184 185 while (gDeviceCount < MAX_DEVICES) { 186 device_t root, device; 187 bool found = false; 188 pci_info *info; 189 190 status = init_root_device(driver, &root, &device); 191 if (status < B_OK) 192 break; 193 194 info = get_pci_info(root); 195 196 for (; gPci->get_nth_pci_info(i, info) == B_OK; i++) { 197 if (device->methods.probe(device) < 0) 198 continue; 199 200 if (device_attach(device) == 0) 201 found = true; 202 203 i++; 204 break; 205 } 206 207 if (!found) { 208 device_delete_child(NULL, root); 209 break; 210 } 211 } 212 213 if (gDeviceCount > 0) 214 return B_OK; 215 216 if (status == B_OK) 217 status = B_ERROR; 218 219 uninit_wlan_stack(); 220 221 err6: 222 if (HAIKU_DRIVER_REQUIRES(FBSD_TASKQUEUES)) 223 uninit_taskqueues(); 224 err5: 225 uninit_mbufs(); 226 err4: 227 uninit_callout(); 228 err3: 229 uninit_mutexes(); 230 err2: 231 uninit_hard_clock(); 232 err1: 233 put_module(B_PCI_MODULE_NAME); 234 if (gPCIx86 != NULL) 235 put_module(B_PCI_X86_MODULE_NAME); 236 237 return status; 238 } 239 240 241 void 242 _fbsd_uninit_driver(driver_t *driver) 243 { 244 int i; 245 246 TRACE(("%s: uninit_driver(%p)\n", gDriverName, driver)); 247 248 for (i = 0; i < gDeviceCount; i++) { 249 device_delete_child(NULL, gDevices[i]->root_device); 250 } 251 252 uninit_wlan_stack(); 253 uninit_bounce_pages(); 254 uninit_mbufs(); 255 if (HAIKU_DRIVER_REQUIRES(FBSD_TASKQUEUES)) 256 uninit_taskqueues(); 257 uninit_callout(); 258 uninit_mutexes(); 259 260 put_module(B_PCI_MODULE_NAME); 261 if (gPCIx86 != NULL) 262 put_module(B_PCI_X86_MODULE_NAME); 263 } 264