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(device_t *_root) 46 { 47 static driver_t sRootDriver = { 48 "pci", 49 NULL, 50 sizeof(struct root_device_softc) 51 }; 52 53 device_t root = device_add_child(NULL, NULL, 0); 54 if (root == NULL) 55 return B_NO_MEMORY; 56 57 root->softc = malloc(sizeof(struct root_device_softc)); 58 if (root->softc == NULL) { 59 device_delete_child(NULL, root); 60 return B_NO_MEMORY; 61 } 62 63 bzero(root->softc, sizeof(struct root_device_softc)); 64 root->driver = &sRootDriver; 65 root->root = root; 66 67 if (_root != NULL) 68 *_root = root; 69 70 return B_OK; 71 } 72 73 74 static status_t 75 add_child_device(driver_t *driver, device_t root, device_t *_child) 76 { 77 device_t child = device_add_child(root, driver->name, 0); 78 if (child == NULL) { 79 return B_ERROR; 80 } 81 82 if (_child != NULL) 83 *_child = child; 84 85 return B_OK; 86 } 87 88 89 static pci_info * 90 get_pci_info(struct device *device) 91 { 92 return &((struct root_device_softc *)device->softc)->pci_info; 93 } 94 95 96 // #pragma mark - Haiku Driver API 97 98 99 status_t 100 _fbsd_init_drivers(driver_t *drivers[]) 101 { 102 status_t status; 103 int i = 0; 104 int index = 0; 105 pci_info *info; 106 device_t root; 107 108 status = get_module(B_PCI_MODULE_NAME, (module_info **)&gPci); 109 if (status < B_OK) 110 return status; 111 112 // if it fails we just don't support x86 specific features (like MSIs) 113 if (get_module(B_PCI_X86_MODULE_NAME, (module_info **)&gPCIx86) != B_OK) 114 gPCIx86 = NULL; 115 116 status = init_mutexes(); 117 if (status < B_OK) 118 goto err2; 119 120 status = init_mbufs(); 121 if (status < B_OK) 122 goto err3; 123 124 status = init_callout(); 125 if (status < B_OK) 126 goto err4; 127 128 init_bounce_pages(); 129 130 if (HAIKU_DRIVER_REQUIRES(FBSD_TASKQUEUES)) { 131 status = init_taskqueues(); 132 if (status < B_OK) 133 goto err5; 134 } 135 136 status = init_wlan_stack(); 137 if (status < B_OK) 138 goto err6; 139 140 status = init_root_device(&root); 141 if (status != B_OK) 142 goto err7; 143 144 for (info = get_pci_info(root); gPci->get_nth_pci_info(i, info) == B_OK; 145 i++) { 146 int best = 0; 147 driver_t *driver = NULL; 148 149 for (index = 0; drivers[index] && gDeviceCount < MAX_DEVICES; index++) { 150 int result; 151 device_t device; 152 status = add_child_device(drivers[index], root, &device); 153 if (status < B_OK) 154 break; 155 156 result = device->methods.probe(device); 157 if (result >= 0 && (driver == NULL || result > best)) { 158 TRACE(("%s, found %s at %d (%d)\n", gDriverName, 159 device_get_desc(device), i, result)); 160 driver = drivers[index]; 161 best = result; 162 } 163 device_delete_child(root, device); 164 } 165 166 if (driver != NULL) { 167 device_t device; 168 status = add_child_device(driver, root, &device); 169 if (status != B_OK) 170 break; 171 // some drivers expect probe() to be called before attach() 172 // (i.e. they set driver softc in probe(), etc.) 173 if (device->methods.probe(device) >= 0 174 && device_attach(device) == 0) { 175 dprintf("%s: init_driver(%p) at %d\n", gDriverName, driver, i); 176 status = init_root_device(&root); 177 if (status != B_OK) 178 break; 179 info = get_pci_info(root); 180 } else 181 device_delete_child(root, device); 182 } 183 } 184 185 if (gDeviceCount > 0) 186 return B_OK; 187 188 device_delete_child(NULL, root); 189 190 if (status == B_OK) 191 status = B_ERROR; 192 193 err7: 194 uninit_wlan_stack(); 195 196 err6: 197 if (HAIKU_DRIVER_REQUIRES(FBSD_TASKQUEUES)) 198 uninit_taskqueues(); 199 err5: 200 uninit_callout(); 201 err4: 202 uninit_mbufs(); 203 err3: 204 uninit_mutexes(); 205 err2: 206 put_module(B_PCI_MODULE_NAME); 207 if (gPCIx86 != NULL) 208 put_module(B_PCI_X86_MODULE_NAME); 209 210 return status; 211 } 212 213 214 status_t 215 _fbsd_uninit_drivers(driver_t *drivers[]) 216 { 217 int i; 218 219 for (i = 0; drivers[i]; i++) 220 TRACE(("%s: uninit_driver(%p)\n", gDriverName, drivers[i])); 221 222 for (i = 0; i < gDeviceCount; i++) { 223 device_delete_child(NULL, gDevices[i]->root_device); 224 } 225 226 uninit_wlan_stack(); 227 if (HAIKU_DRIVER_REQUIRES(FBSD_TASKQUEUES)) 228 uninit_taskqueues(); 229 uninit_bounce_pages(); 230 uninit_callout(); 231 uninit_mbufs(); 232 uninit_mutexes(); 233 234 put_module(B_PCI_MODULE_NAME); 235 if (gPCIx86 != NULL) 236 put_module(B_PCI_X86_MODULE_NAME); 237 238 return B_OK; 239 } 240