1 /* 2 * Copyright 2006-2008, 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 <stdlib.h> 15 #include <stdio.h> 16 #include <string.h> 17 18 #include <AGP.h> 19 #include <KernelExport.h> 20 #include <OS.h> 21 #include <PCI.h> 22 #include <SupportDefs.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_83x, "i830GM"}, 40 {0x2562, INTEL_TYPE_83x, "i845G"}, 41 42 {0x2572, INTEL_TYPE_85x, "i865G"}, 43 {0x3582, INTEL_TYPE_85x, "i855G"}, 44 45 {0x2792, INTEL_TYPE_91x, "i910"}, 46 {0x258a, INTEL_TYPE_91x, "i915"}, 47 {0x2582, INTEL_TYPE_91x, "i915G"}, 48 {0x2592, INTEL_TYPE_91x, "i915GM"}, 49 {0x2772, INTEL_TYPE_945, "i945G"}, 50 {0x27a2, INTEL_TYPE_945, "i945GM"}, 51 {0x29a2, INTEL_TYPE_965, "i965G"}, 52 {0x29b2, INTEL_TYPE_G33, "G33G"}, 53 {0x29c2, INTEL_TYPE_G33, "Q35G"}, 54 {0x29d2, INTEL_TYPE_G33, "Q33G"}, 55 }; 56 57 int32 api_version = B_CUR_DRIVER_API_VERSION; 58 59 char *gDeviceNames[MAX_CARDS + 1]; 60 intel_info *gDeviceInfo[MAX_CARDS]; 61 pci_module_info *gPCI; 62 agp_gart_module_info *gGART; 63 lock gLock; 64 65 66 static status_t 67 get_next_intel_extreme(int32 *_cookie, pci_info &info, uint32 &type) 68 { 69 int32 index = *_cookie; 70 71 // find devices 72 73 for (; gPCI->get_nth_pci_info(index, &info) == B_OK; index++) { 74 // check vendor 75 if (info.vendor_id != VENDOR_ID_INTEL 76 || info.class_base != PCI_display 77 || info.class_sub != 0) 78 continue; 79 80 // check device 81 for (uint32 i = 0; i < sizeof(kSupportedDevices) 82 / sizeof(kSupportedDevices[0]); i++) { 83 if (info.device_id == kSupportedDevices[i].device_id) { 84 type = i; 85 *_cookie = index + 1; 86 return B_OK; 87 } 88 } 89 } 90 91 return B_ENTRY_NOT_FOUND; 92 } 93 94 95 extern "C" const char ** 96 publish_devices(void) 97 { 98 TRACE((DEVICE_NAME ": publish_devices()\n")); 99 return (const char **)gDeviceNames; 100 } 101 102 103 extern "C" status_t 104 init_hardware(void) 105 { 106 TRACE((DEVICE_NAME ": init_hardware()\n")); 107 108 status_t status = get_module(B_PCI_MODULE_NAME,(module_info **)&gPCI); 109 if (status != B_OK) { 110 TRACE((DEVICE_NAME ": pci module unavailable\n")); 111 return status; 112 } 113 114 int32 cookie = 0; 115 uint32 type; 116 pci_info info; 117 status = get_next_intel_extreme(&cookie, info, type); 118 119 put_module(B_PCI_MODULE_NAME); 120 return status; 121 } 122 123 124 extern "C" status_t 125 init_driver(void) 126 { 127 TRACE((DEVICE_NAME ": init_driver()\n")); 128 129 status_t status = get_module(B_PCI_MODULE_NAME, (module_info **)&gPCI); 130 if (status != B_OK) { 131 TRACE((DEVICE_NAME ": pci module unavailable\n")); 132 return status; 133 } 134 135 status = get_module(B_AGP_GART_MODULE_NAME, (module_info **)&gGART); 136 if (status != B_OK) { 137 TRACE((DEVICE_NAME ": AGP GART module unavailable\n")); 138 put_module(B_PCI_MODULE_NAME); 139 return status; 140 } 141 142 status = init_lock(&gLock, "intel extreme ksync"); 143 if (status < B_OK) { 144 put_module(B_AGP_GART_MODULE_NAME); 145 put_module(B_PCI_MODULE_NAME); 146 return status; 147 } 148 149 // find devices 150 151 int32 found = 0; 152 153 for (int32 cookie = 0; found < MAX_CARDS;) { 154 pci_info *info = (pci_info *)malloc(sizeof(pci_info)); 155 if (info == NULL) 156 break; 157 158 uint32 type; 159 status = get_next_intel_extreme(&cookie, *info, type); 160 if (status < B_OK) { 161 free(info); 162 break; 163 } 164 165 // create device names & allocate device info structure 166 167 char name[64]; 168 sprintf(name, "graphics/intel_extreme_%02x%02x%02x", 169 info->bus, info->device, 170 info->function); 171 172 gDeviceNames[found] = strdup(name); 173 if (gDeviceNames[found] == NULL) 174 break; 175 176 gDeviceInfo[found] = (intel_info *)malloc(sizeof(intel_info)); 177 if (gDeviceInfo[found] == NULL) { 178 free(gDeviceNames[found]); 179 break; 180 } 181 182 // initialize the structure for later use 183 184 memset(gDeviceInfo[found], 0, sizeof(intel_info)); 185 gDeviceInfo[found]->init_status = B_NO_INIT; 186 gDeviceInfo[found]->id = found; 187 gDeviceInfo[found]->pci = info; 188 gDeviceInfo[found]->registers = (uint8 *)info->u.h0.base_registers[0]; 189 gDeviceInfo[found]->device_identifier = kSupportedDevices[type].name; 190 gDeviceInfo[found]->device_type = kSupportedDevices[type].type; 191 192 dprintf(DEVICE_NAME ": (%ld) %s, revision = 0x%x\n", found, 193 kSupportedDevices[type].name, info->revision); 194 195 found++; 196 } 197 198 gDeviceNames[found] = NULL; 199 200 if (found == 0) { 201 uninit_lock(&gLock); 202 put_module(B_AGP_GART_MODULE_NAME); 203 put_module(B_PCI_MODULE_NAME); 204 return ENODEV; 205 } 206 207 return B_OK; 208 } 209 210 211 extern "C" void 212 uninit_driver(void) 213 { 214 TRACE((DEVICE_NAME ": uninit_driver()\n")); 215 216 uninit_lock(&gLock); 217 218 // free device related structures 219 char *name; 220 for (int32 index = 0; (name = gDeviceNames[index]) != NULL; index++) { 221 free(gDeviceInfo[index]); 222 free(name); 223 } 224 225 put_module(B_AGP_GART_MODULE_NAME); 226 put_module(B_PCI_MODULE_NAME); 227 } 228 229 230 extern "C" device_hooks * 231 find_device(const char *name) 232 { 233 int index; 234 235 TRACE((DEVICE_NAME ": find_device()\n")); 236 237 for (index = 0; gDeviceNames[index] != NULL; index++) { 238 if (!strcmp(name, gDeviceNames[index])) 239 return &gDeviceHooks; 240 } 241 242 return NULL; 243 } 244 245 /* 246 extern "C" void 247 wake_driver(void) 248 { 249 // for compatibility with Dano, only 250 } 251 252 253 extern "C" void 254 suspend_driver(void) 255 { 256 // for compatibility with Dano, only 257 } 258 */ 259