1 /* 2 * Copyright 2009, Clemens Zeidler. All rights reserved. 3 * Copyright 2006, Jérôme Duval. All rights reserved. 4 * 5 * Distributed under the terms of the MIT License. 6 */ 7 8 9 #include <stdlib.h> 10 #include <string.h> 11 12 13 #include "ACPIPrivate.h" 14 extern "C" { 15 #include "acpi.h" 16 } 17 #include <dpc.h> 18 #include <PCI.h> 19 20 21 //#define TRACE_ACPI_MODULE 22 #ifdef TRACE_ACPI_MODULE 23 # define TRACE(x) dprintf x 24 #else 25 # define TRACE(x) ; 26 #endif 27 28 29 device_manager_info* gDeviceManager = NULL; 30 pci_module_info* gPCIManager = NULL; 31 dpc_module_info* gDPC = NULL; 32 33 module_dependency module_dependencies[] = { 34 {B_DEVICE_MANAGER_MODULE_NAME, (module_info**)&gDeviceManager}, 35 {B_PCI_MODULE_NAME, (module_info**)&gPCIManager}, 36 {B_DPC_MODULE_NAME, (module_info**)&gDPC}, 37 {} 38 }; 39 40 41 static float 42 acpi_module_supports_device(device_node* parent) 43 { 44 // make sure parent is really device root 45 const char* bus; 46 if (gDeviceManager->get_attr_string(parent, B_DEVICE_BUS, &bus, false)) 47 return B_ERROR; 48 49 if (strcmp(bus, "root")) 50 return 0.0; 51 52 return 1.0; 53 } 54 55 56 static status_t 57 acpi_module_register_device(device_node* parent) 58 { 59 device_attr attrs[] = { 60 { B_DEVICE_PRETTY_NAME, B_STRING_TYPE, { string: "ACPI" }}, 61 62 { B_DEVICE_FLAGS, B_UINT32_TYPE, { ui32: B_KEEP_DRIVER_LOADED }}, 63 {} 64 }; 65 66 return gDeviceManager->register_node(parent, ACPI_ROOT_MODULE_NAME, attrs, 67 NULL, NULL); 68 } 69 70 71 static status_t 72 acpi_enumerate_child_devices(device_node* node, const char* root) 73 { 74 char result[255]; 75 void* counter = NULL; 76 77 TRACE(("acpi_enumerate_child_devices: recursing from %s\n", root)); 78 79 while (get_next_entry(ACPI_TYPE_ANY, root, result, 80 sizeof(result), &counter) == B_OK) { 81 uint32 type = get_object_type(result); 82 device_node* deviceNode; 83 84 switch (type) { 85 case ACPI_TYPE_POWER: 86 case ACPI_TYPE_PROCESSOR: 87 case ACPI_TYPE_THERMAL: 88 case ACPI_TYPE_DEVICE: { 89 device_attr attrs[15] = { 90 // info about device 91 { B_DEVICE_BUS, B_STRING_TYPE, { string: "acpi" }}, 92 93 // location on ACPI bus 94 { ACPI_DEVICE_PATH_ITEM, B_STRING_TYPE, { string: result }}, 95 96 // info about the device 97 { ACPI_DEVICE_TYPE_ITEM, B_UINT32_TYPE, { ui32: type }}, 98 99 { B_DEVICE_FLAGS, B_UINT32_TYPE, { ui32: B_FIND_MULTIPLE_CHILDREN }}, 100 { NULL } 101 }; 102 103 uint32 attrCount = 4; 104 char* hid = NULL; 105 char* cidList[8] = { NULL }; 106 if (type == ACPI_TYPE_DEVICE) { 107 if (get_device_info(result, &hid, (char**)&cidList, 8) 108 == B_OK) { 109 if (hid != NULL) { 110 attrs[attrCount].name = ACPI_DEVICE_HID_ITEM; 111 attrs[attrCount].type = B_STRING_TYPE; 112 attrs[attrCount].value.string = hid; 113 attrCount++; 114 } 115 for (int i = 0; cidList[i] != NULL; i++) { 116 attrs[attrCount].name = ACPI_DEVICE_CID_ITEM; 117 attrs[attrCount].type = B_STRING_TYPE; 118 attrs[attrCount].value.string = cidList[i]; 119 attrCount++; 120 } 121 } 122 uint32 addr; 123 if (get_device_addr(result, &addr) == B_OK) { 124 attrs[attrCount].name = ACPI_DEVICE_ADDR_ITEM; 125 attrs[attrCount].type = B_UINT32_TYPE; 126 attrs[attrCount].value.ui32 = addr; 127 attrCount++; 128 } 129 } 130 131 status_t status = gDeviceManager->register_node(node, 132 ACPI_DEVICE_MODULE_NAME, attrs, NULL, &deviceNode); 133 free(hid); 134 for (int i = 0; cidList[i] != NULL; i++) 135 free(cidList[i]); 136 if (status != B_OK) 137 break; 138 acpi_enumerate_child_devices(deviceNode, result); 139 break; 140 } 141 default: 142 acpi_enumerate_child_devices(node, result); 143 break; 144 } 145 146 } 147 148 return B_OK; 149 } 150 151 152 static status_t 153 acpi_module_register_child_devices(void* cookie) 154 { 155 device_node* node = (device_node*)cookie; 156 157 status_t status = gDeviceManager->publish_device(node, "acpi/namespace", 158 ACPI_NS_DUMP_DEVICE_MODULE_NAME); 159 if (status != B_OK) 160 return status; 161 162 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) == 0) { 163 dprintf("registering power button\n"); 164 device_attr attrs[] = { 165 // info about device 166 { B_DEVICE_BUS, B_STRING_TYPE, { string: "acpi" }}, 167 168 // info about the device 169 { ACPI_DEVICE_HID_ITEM, B_STRING_TYPE, { string: "ACPI_FPB" }}, 170 { ACPI_DEVICE_TYPE_ITEM, B_UINT32_TYPE, { ui32: ACPI_TYPE_DEVICE }}, 171 172 // consumer specification 173 { B_DEVICE_FLAGS, B_UINT32_TYPE, { ui32: B_FIND_MULTIPLE_CHILDREN }}, 174 { NULL } 175 }; 176 device_node* deviceNode; 177 gDeviceManager->register_node(node, ACPI_DEVICE_MODULE_NAME, attrs, 178 NULL, &deviceNode); 179 } 180 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) == 0) { 181 dprintf("registering sleep button\n"); 182 device_attr attrs[] = { 183 // info about device 184 { B_DEVICE_BUS, B_STRING_TYPE, { string: "acpi" }}, 185 186 // info about the device 187 { ACPI_DEVICE_HID_ITEM, B_STRING_TYPE, { string: "ACPI_FSB" }}, 188 { ACPI_DEVICE_TYPE_ITEM, B_UINT32_TYPE, { ui32: ACPI_TYPE_DEVICE }}, 189 190 // consumer specification 191 { B_DEVICE_FLAGS, B_UINT32_TYPE, { ui32: B_FIND_MULTIPLE_CHILDREN }}, 192 { NULL } 193 }; 194 device_node* deviceNode; 195 gDeviceManager->register_node(node, ACPI_DEVICE_MODULE_NAME, attrs, 196 NULL, &deviceNode); 197 198 } 199 200 return acpi_enumerate_child_devices(node, "\\"); 201 } 202 203 204 static status_t 205 acpi_module_init(device_node* node, void** _cookie) 206 { 207 *_cookie = node; 208 return B_OK; 209 } 210 211 212 static void 213 acpi_module_uninit(void* cookie) 214 { 215 } 216 217 218 static int32 219 acpi_module_std_ops(int32 op, ...) 220 { 221 switch (op) { 222 case B_MODULE_INIT: 223 { 224 module_info* module; 225 return get_module(B_ACPI_MODULE_NAME, &module); 226 // this serializes our module initialization 227 } 228 229 case B_MODULE_UNINIT: 230 return put_module(B_ACPI_MODULE_NAME); 231 } 232 233 return B_BAD_VALUE; 234 } 235 236 237 static struct acpi_root_info sACPIRootModule = { 238 { 239 { 240 ACPI_ROOT_MODULE_NAME, 241 0, 242 acpi_module_std_ops 243 }, 244 245 acpi_module_supports_device, 246 acpi_module_register_device, 247 acpi_module_init, 248 acpi_module_uninit, 249 acpi_module_register_child_devices, 250 NULL, // rescan devices 251 NULL, // device removed 252 }, 253 254 get_handle, 255 get_name, 256 acquire_global_lock, 257 release_global_lock, 258 install_notify_handler, 259 remove_notify_handler, 260 update_all_gpes, 261 enable_gpe, 262 disable_gpe, 263 clear_gpe, 264 set_gpe, 265 finish_gpe, 266 install_gpe_handler, 267 remove_gpe_handler, 268 install_address_space_handler, 269 remove_address_space_handler, 270 enable_fixed_event, 271 disable_fixed_event, 272 fixed_event_status, 273 reset_fixed_event, 274 install_fixed_event_handler, 275 remove_fixed_event_handler, 276 get_next_entry, 277 get_next_object, 278 get_device, 279 get_device_info, 280 get_object_type, 281 get_object, 282 get_object_typed, 283 ns_handle_to_pathname, 284 evaluate_object, 285 evaluate_method, 286 get_irq_routing_table, 287 get_current_resources, 288 get_possible_resources, 289 set_current_resources, 290 walk_resources, 291 prepare_sleep_state, 292 enter_sleep_state, 293 reboot, 294 get_table 295 }; 296 297 298 module_info* modules[] = { 299 (module_info*)&gACPIModule, 300 (module_info*)&sACPIRootModule, 301 (module_info*)&acpi_ns_dump_module, 302 (module_info*)&gACPIDeviceModule, 303 (module_info*)&embedded_controller_driver_module, 304 (module_info*)&embedded_controller_device_module, 305 NULL 306 }; 307