1 /* 2 * Copyright 2006-2007, Haiku, Inc. All Rights Reserved. 3 * Distributed under the terms of the MIT License. 4 * 5 * Authors: 6 * Axel Dörfler, axeld@pinc-software.de 7 */ 8 9 10 #include "driver.h" 11 #include "device.h" 12 #include "lock.h" 13 14 #include <OS.h> 15 #include <KernelExport.h> 16 #include <SupportDefs.h> 17 #include <PCI.h> 18 19 #include <stdlib.h> 20 #include <stdio.h> 21 #include <string.h> 22 #include <malloc.h> 23 24 #define TRACE_DRIVER 25 #ifdef TRACE_DRIVER 26 # define TRACE(x) dprintf x 27 #else 28 # define TRACE(x) ; 29 #endif 30 31 #define MAX_CARDS 4 32 33 // list of supported devices 34 const struct supported_device { 35 uint32 device_id; 36 int32 type; 37 const char *name; 38 } kSupportedDevices[] = { 39 {0x3577, INTEL_TYPE_8xx | INTEL_TYPE_83x, "i830GM"}, 40 {0x2562, INTEL_TYPE_8xx | INTEL_TYPE_83x, "i845G"}, 41 42 {0x2572, INTEL_TYPE_8xx | INTEL_TYPE_85x, "i865G"}, 43 {0x3582, INTEL_TYPE_8xx | INTEL_TYPE_85x, "i855G"}, 44 45 #if 1 46 {0x2792, INTEL_TYPE_9xx, "i910"}, 47 {0x258a, INTEL_TYPE_9xx, "i915"}, 48 {0x2582, INTEL_TYPE_9xx, "i915G"}, 49 {0x2592, INTEL_TYPE_9xx, "i915GM"}, 50 {0x2772, INTEL_TYPE_9xx, "i945G"}, 51 {0x27a2, INTEL_TYPE_9xx, "i945GM"}, 52 {0x29a2, INTEL_TYPE_9xx | INTEL_TYPE_965, "i965G"} 53 #endif 54 }; 55 56 int32 api_version = B_CUR_DRIVER_API_VERSION; 57 58 char *gDeviceNames[MAX_CARDS + 1]; 59 intel_info *gDeviceInfo[MAX_CARDS]; 60 pci_module_info *gPCI; 61 lock gLock; 62 63 64 static status_t 65 get_next_intel_extreme(int32 *_cookie, pci_info &info, uint32 &type) 66 { 67 int32 index = *_cookie; 68 69 // find devices 70 71 for (; gPCI->get_nth_pci_info(index, &info) == B_OK; index++) { 72 // check vendor 73 if (info.vendor_id != VENDOR_ID_INTEL 74 || info.class_base != PCI_display 75 || info.class_sub != 0) 76 continue; 77 78 // check device 79 for (uint32 i = 0; i < sizeof(kSupportedDevices) 80 / sizeof(kSupportedDevices[0]); i++) { 81 if (info.device_id == kSupportedDevices[i].device_id) { 82 type = i; 83 *_cookie = index + 1; 84 return B_OK; 85 } 86 } 87 } 88 89 return B_ENTRY_NOT_FOUND; 90 } 91 92 93 extern "C" const char ** 94 publish_devices(void) 95 { 96 TRACE((DEVICE_NAME ": publish_devices()\n")); 97 return (const char **)gDeviceNames; 98 } 99 100 101 extern "C" status_t 102 init_hardware(void) 103 { 104 TRACE((DEVICE_NAME ": init_hardware()\n")); 105 106 status_t status = get_module(B_PCI_MODULE_NAME,(module_info **)&gPCI); 107 if (status != B_OK) { 108 TRACE((DEVICE_NAME ": pci module unavailable\n")); 109 return status; 110 } 111 112 int32 cookie = 0; 113 uint32 type; 114 pci_info info; 115 status = get_next_intel_extreme(&cookie, info, type); 116 117 put_module(B_PCI_MODULE_NAME); 118 return status; 119 } 120 121 122 extern "C" status_t 123 init_driver(void) 124 { 125 TRACE((DEVICE_NAME ": init_driver()\n")); 126 127 status_t status = get_module(B_PCI_MODULE_NAME,(module_info **)&gPCI); 128 if (status != B_OK) { 129 TRACE((DEVICE_NAME ": pci module unavailable\n")); 130 return status; 131 } 132 133 status = init_lock(&gLock, "intel extreme ksync"); 134 if (status < B_OK) 135 return status; 136 137 // find devices 138 139 int32 found = 0; 140 141 for (int32 cookie = 0; found < MAX_CARDS;) { 142 pci_info *info = (pci_info *)malloc(sizeof(pci_info)); 143 if (info == NULL) 144 break; 145 146 uint32 type; 147 status = get_next_intel_extreme(&cookie, *info, type); 148 if (status < B_OK) { 149 free(info); 150 break; 151 } 152 153 // create device names & allocate device info structure 154 155 char name[64]; 156 sprintf(name, "graphics/intel_extreme_%02x%02x%02x", 157 info->bus, info->device, 158 info->function); 159 160 gDeviceNames[found] = strdup(name); 161 if (gDeviceNames[found] == NULL) 162 break; 163 164 gDeviceInfo[found] = (intel_info *)malloc(sizeof(intel_info)); 165 if (gDeviceInfo[found] == NULL) { 166 free(gDeviceNames[found]); 167 break; 168 } 169 170 // initialize the structure for later use 171 172 memset(gDeviceInfo[found], 0, sizeof(intel_info)); 173 gDeviceInfo[found]->init_status = B_NO_INIT; 174 gDeviceInfo[found]->id = found; 175 gDeviceInfo[found]->pci = info; 176 gDeviceInfo[found]->registers = (uint8 *)info->u.h0.base_registers[0]; 177 gDeviceInfo[found]->device_identifier = kSupportedDevices[type].name; 178 gDeviceInfo[found]->device_type = kSupportedDevices[type].type; 179 180 dprintf(DEVICE_NAME ": (%ld) %s, revision = 0x%x\n", found, 181 kSupportedDevices[type].name, info->revision); 182 found++; 183 } 184 185 gDeviceNames[found] = NULL; 186 187 if (found == 0) { 188 uninit_lock(&gLock); 189 put_module(B_PCI_MODULE_NAME); 190 return ENODEV; 191 } 192 193 return B_OK; 194 } 195 196 197 extern "C" void 198 uninit_driver(void) 199 { 200 TRACE((DEVICE_NAME ": uninit_driver()\n")); 201 202 uninit_lock(&gLock); 203 204 // free device related structures 205 char *name; 206 for (int32 index = 0; (name = gDeviceNames[index]) != NULL; index++) { 207 free(gDeviceInfo[index]); 208 free(name); 209 } 210 211 put_module(B_PCI_MODULE_NAME); 212 } 213 214 215 extern "C" device_hooks * 216 find_device(const char *name) 217 { 218 int index; 219 220 TRACE((DEVICE_NAME ": find_device()\n")); 221 222 for (index = 0; gDeviceNames[index] != NULL; index++) { 223 if (!strcmp(name, gDeviceNames[index])) 224 return &gDeviceHooks; 225 } 226 227 return NULL; 228 } 229 230 /* 231 extern "C" void 232 wake_driver(void) 233 { 234 // for compatibility with Dano, only 235 } 236 237 238 extern "C" void 239 suspend_driver(void) 240 { 241 // for compatibility with Dano, only 242 } 243 */ 244