1 /* 2 * PS3 System Manager. 3 * 4 * Copyright (C) 2007 Sony Computer Entertainment Inc. 5 * Copyright 2007 Sony Corp. 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; version 2 of the License. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 */ 20 21 #include <linux/kernel.h> 22 #include <linux/module.h> 23 #include <linux/workqueue.h> 24 #include <linux/reboot.h> 25 #include <linux/sched/signal.h> 26 27 #include <asm/firmware.h> 28 #include <asm/lv1call.h> 29 #include <asm/ps3.h> 30 31 #include "vuart.h" 32 33 /** 34 * ps3_sys_manager - PS3 system manager driver. 35 * 36 * The system manager provides an asynchronous system event notification 37 * mechanism for reporting events like thermal alert and button presses to 38 * guests. It also provides support to control system shutdown and startup. 39 * 40 * The actual system manager is implemented as an application running in the 41 * system policy module in lpar_1. Guests communicate with the system manager 42 * through port 2 of the vuart using a simple packet message protocol. 43 * Messages are comprised of a fixed field header followed by a message 44 * specific payload. 45 */ 46 47 /** 48 * struct ps3_sys_manager_header - System manager message header. 49 * @version: Header version, currently 1. 50 * @size: Header size in bytes, currently 16. 51 * @payload_size: Message payload size in bytes. 52 * @service_id: Message type, one of enum ps3_sys_manager_service_id. 53 * @request_tag: Unique number to identify reply. 54 */ 55 56 struct ps3_sys_manager_header { 57 /* version 1 */ 58 u8 version; 59 u8 size; 60 u16 reserved_1; 61 u32 payload_size; 62 u16 service_id; 63 u16 reserved_2; 64 u32 request_tag; 65 }; 66 67 #define dump_sm_header(_h) _dump_sm_header(_h, __func__, __LINE__) 68 static void __maybe_unused _dump_sm_header( 69 const struct ps3_sys_manager_header *h, const char *func, int line) 70 { 71 pr_debug("%s:%d: version: %xh\n", func, line, h->version); 72 pr_debug("%s:%d: size: %xh\n", func, line, h->size); 73 pr_debug("%s:%d: payload_size: %xh\n", func, line, h->payload_size); 74 pr_debug("%s:%d: service_id: %xh\n", func, line, h->service_id); 75 pr_debug("%s:%d: request_tag: %xh\n", func, line, h->request_tag); 76 } 77 78 /** 79 * @PS3_SM_RX_MSG_LEN_MIN - Shortest received message length. 80 * @PS3_SM_RX_MSG_LEN_MAX - Longest received message length. 81 * 82 * Currently all messages received from the system manager are either 83 * (16 bytes header + 8 bytes payload = 24 bytes) or (16 bytes header 84 * + 16 bytes payload = 32 bytes). This knowledge is used to simplify 85 * the logic. 86 */ 87 88 enum { 89 PS3_SM_RX_MSG_LEN_MIN = 24, 90 PS3_SM_RX_MSG_LEN_MAX = 32, 91 }; 92 93 /** 94 * enum ps3_sys_manager_service_id - Message header service_id. 95 * @PS3_SM_SERVICE_ID_REQUEST: guest --> sys_manager. 96 * @PS3_SM_SERVICE_ID_REQUEST_ERROR: guest <-- sys_manager. 97 * @PS3_SM_SERVICE_ID_COMMAND: guest <-- sys_manager. 98 * @PS3_SM_SERVICE_ID_RESPONSE: guest --> sys_manager. 99 * @PS3_SM_SERVICE_ID_SET_ATTR: guest --> sys_manager. 100 * @PS3_SM_SERVICE_ID_EXTERN_EVENT: guest <-- sys_manager. 101 * @PS3_SM_SERVICE_ID_SET_NEXT_OP: guest --> sys_manager. 102 * 103 * PS3_SM_SERVICE_ID_REQUEST_ERROR is returned for invalid data values in a 104 * a PS3_SM_SERVICE_ID_REQUEST message. It also seems to be returned when 105 * a REQUEST message is sent at the wrong time. 106 */ 107 108 enum ps3_sys_manager_service_id { 109 /* version 1 */ 110 PS3_SM_SERVICE_ID_REQUEST = 1, 111 PS3_SM_SERVICE_ID_RESPONSE = 2, 112 PS3_SM_SERVICE_ID_COMMAND = 3, 113 PS3_SM_SERVICE_ID_EXTERN_EVENT = 4, 114 PS3_SM_SERVICE_ID_SET_NEXT_OP = 5, 115 PS3_SM_SERVICE_ID_REQUEST_ERROR = 6, 116 PS3_SM_SERVICE_ID_SET_ATTR = 8, 117 }; 118 119 /** 120 * enum ps3_sys_manager_attr - Notification attribute (bit position mask). 121 * @PS3_SM_ATTR_POWER: Power button. 122 * @PS3_SM_ATTR_RESET: Reset button, not available on retail console. 123 * @PS3_SM_ATTR_THERMAL: System thermal alert. 124 * @PS3_SM_ATTR_CONTROLLER: Remote controller event. 125 * @PS3_SM_ATTR_ALL: Logical OR of all. 126 * 127 * The guest tells the system manager which events it is interested in receiving 128 * notice of by sending the system manager a logical OR of notification 129 * attributes via the ps3_sys_manager_send_attr() routine. 130 */ 131 132 enum ps3_sys_manager_attr { 133 /* version 1 */ 134 PS3_SM_ATTR_POWER = 1, 135 PS3_SM_ATTR_RESET = 2, 136 PS3_SM_ATTR_THERMAL = 4, 137 PS3_SM_ATTR_CONTROLLER = 8, /* bogus? */ 138 PS3_SM_ATTR_ALL = 0x0f, 139 }; 140 141 /** 142 * enum ps3_sys_manager_event - External event type, reported by system manager. 143 * @PS3_SM_EVENT_POWER_PRESSED: payload.value = 144 * enum ps3_sys_manager_button_event. 145 * @PS3_SM_EVENT_POWER_RELEASED: payload.value = time pressed in millisec. 146 * @PS3_SM_EVENT_RESET_PRESSED: payload.value = 147 * enum ps3_sys_manager_button_event. 148 * @PS3_SM_EVENT_RESET_RELEASED: payload.value = time pressed in millisec. 149 * @PS3_SM_EVENT_THERMAL_ALERT: payload.value = thermal zone id. 150 * @PS3_SM_EVENT_THERMAL_CLEARED: payload.value = thermal zone id. 151 */ 152 153 enum ps3_sys_manager_event { 154 /* version 1 */ 155 PS3_SM_EVENT_POWER_PRESSED = 3, 156 PS3_SM_EVENT_POWER_RELEASED = 4, 157 PS3_SM_EVENT_RESET_PRESSED = 5, 158 PS3_SM_EVENT_RESET_RELEASED = 6, 159 PS3_SM_EVENT_THERMAL_ALERT = 7, 160 PS3_SM_EVENT_THERMAL_CLEARED = 8, 161 /* no info on controller events */ 162 }; 163 164 /** 165 * enum ps3_sys_manager_button_event - Button event payload values. 166 * @PS3_SM_BUTTON_EVENT_HARD: Hardware generated event. 167 * @PS3_SM_BUTTON_EVENT_SOFT: Software generated event. 168 */ 169 170 enum ps3_sys_manager_button_event { 171 PS3_SM_BUTTON_EVENT_HARD = 0, 172 PS3_SM_BUTTON_EVENT_SOFT = 1, 173 }; 174 175 /** 176 * enum ps3_sys_manager_next_op - Operation to perform after lpar is destroyed. 177 */ 178 179 enum ps3_sys_manager_next_op { 180 /* version 3 */ 181 PS3_SM_NEXT_OP_SYS_SHUTDOWN = 1, 182 PS3_SM_NEXT_OP_SYS_REBOOT = 2, 183 PS3_SM_NEXT_OP_LPAR_REBOOT = 0x82, 184 }; 185 186 /** 187 * enum ps3_sys_manager_wake_source - Next-op wakeup source (bit position mask). 188 * @PS3_SM_WAKE_DEFAULT: Disk insert, power button, eject button. 189 * @PS3_SM_WAKE_W_O_L: Ether or wireless LAN. 190 * @PS3_SM_WAKE_P_O_R: Power on reset. 191 * 192 * Additional wakeup sources when specifying PS3_SM_NEXT_OP_SYS_SHUTDOWN. 193 * The system will always wake from the PS3_SM_WAKE_DEFAULT sources. 194 * Sources listed here are the only ones available to guests in the 195 * other-os lpar. 196 */ 197 198 enum ps3_sys_manager_wake_source { 199 /* version 3 */ 200 PS3_SM_WAKE_DEFAULT = 0, 201 PS3_SM_WAKE_W_O_L = 0x00000400, 202 PS3_SM_WAKE_P_O_R = 0x80000000, 203 }; 204 205 /** 206 * user_wake_sources - User specified wakeup sources. 207 * 208 * Logical OR of enum ps3_sys_manager_wake_source types. 209 */ 210 211 static u32 user_wake_sources = PS3_SM_WAKE_DEFAULT; 212 213 /** 214 * enum ps3_sys_manager_cmd - Command from system manager to guest. 215 * 216 * The guest completes the actions needed, then acks or naks the command via 217 * ps3_sys_manager_send_response(). In the case of @PS3_SM_CMD_SHUTDOWN, 218 * the guest must be fully prepared for a system poweroff prior to acking the 219 * command. 220 */ 221 222 enum ps3_sys_manager_cmd { 223 /* version 1 */ 224 PS3_SM_CMD_SHUTDOWN = 1, /* shutdown guest OS */ 225 }; 226 227 /** 228 * ps3_sm_force_power_off - Poweroff helper. 229 * 230 * A global variable used to force a poweroff when the power button has 231 * been pressed irrespective of how init handles the ctrl_alt_del signal. 232 * 233 */ 234 235 static unsigned int ps3_sm_force_power_off; 236 237 /** 238 * ps3_sys_manager_write - Helper to write a two part message to the vuart. 239 * 240 */ 241 242 static int ps3_sys_manager_write(struct ps3_system_bus_device *dev, 243 const struct ps3_sys_manager_header *header, const void *payload) 244 { 245 int result; 246 247 BUG_ON(header->version != 1); 248 BUG_ON(header->size != 16); 249 BUG_ON(header->payload_size != 8 && header->payload_size != 16); 250 BUG_ON(header->service_id > 8); 251 252 result = ps3_vuart_write(dev, header, 253 sizeof(struct ps3_sys_manager_header)); 254 255 if (!result) 256 result = ps3_vuart_write(dev, payload, header->payload_size); 257 258 return result; 259 } 260 261 /** 262 * ps3_sys_manager_send_attr - Send a 'set attribute' to the system manager. 263 * 264 */ 265 266 static int ps3_sys_manager_send_attr(struct ps3_system_bus_device *dev, 267 enum ps3_sys_manager_attr attr) 268 { 269 struct ps3_sys_manager_header header; 270 struct { 271 u8 version; 272 u8 reserved_1[3]; 273 u32 attribute; 274 } payload; 275 276 BUILD_BUG_ON(sizeof(payload) != 8); 277 278 dev_dbg(&dev->core, "%s:%d: %xh\n", __func__, __LINE__, attr); 279 280 memset(&header, 0, sizeof(header)); 281 header.version = 1; 282 header.size = 16; 283 header.payload_size = 16; 284 header.service_id = PS3_SM_SERVICE_ID_SET_ATTR; 285 286 memset(&payload, 0, sizeof(payload)); 287 payload.version = 1; 288 payload.attribute = attr; 289 290 return ps3_sys_manager_write(dev, &header, &payload); 291 } 292 293 /** 294 * ps3_sys_manager_send_next_op - Send a 'set next op' to the system manager. 295 * 296 * Tell the system manager what to do after this lpar is destroyed. 297 */ 298 299 static int ps3_sys_manager_send_next_op(struct ps3_system_bus_device *dev, 300 enum ps3_sys_manager_next_op op, 301 enum ps3_sys_manager_wake_source wake_source) 302 { 303 struct ps3_sys_manager_header header; 304 struct { 305 u8 version; 306 u8 type; 307 u8 gos_id; 308 u8 reserved_1; 309 u32 wake_source; 310 u8 reserved_2[8]; 311 } payload; 312 313 BUILD_BUG_ON(sizeof(payload) != 16); 314 315 dev_dbg(&dev->core, "%s:%d: (%xh)\n", __func__, __LINE__, op); 316 317 memset(&header, 0, sizeof(header)); 318 header.version = 1; 319 header.size = 16; 320 header.payload_size = 16; 321 header.service_id = PS3_SM_SERVICE_ID_SET_NEXT_OP; 322 323 memset(&payload, 0, sizeof(payload)); 324 payload.version = 3; 325 payload.type = op; 326 payload.gos_id = 3; /* other os */ 327 payload.wake_source = wake_source; 328 329 return ps3_sys_manager_write(dev, &header, &payload); 330 } 331 332 /** 333 * ps3_sys_manager_send_request_shutdown - Send 'request' to the system manager. 334 * 335 * The guest sends this message to request an operation or action of the system 336 * manager. The reply is a command message from the system manager. In the 337 * command handler the guest performs the requested operation. The result of 338 * the command is then communicated back to the system manager with a response 339 * message. 340 * 341 * Currently, the only supported request is the 'shutdown self' request. 342 */ 343 344 static int ps3_sys_manager_send_request_shutdown( 345 struct ps3_system_bus_device *dev) 346 { 347 struct ps3_sys_manager_header header; 348 struct { 349 u8 version; 350 u8 type; 351 u8 gos_id; 352 u8 reserved_1[13]; 353 } payload; 354 355 BUILD_BUG_ON(sizeof(payload) != 16); 356 357 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); 358 359 memset(&header, 0, sizeof(header)); 360 header.version = 1; 361 header.size = 16; 362 header.payload_size = 16; 363 header.service_id = PS3_SM_SERVICE_ID_REQUEST; 364 365 memset(&payload, 0, sizeof(payload)); 366 payload.version = 1; 367 payload.type = 1; /* shutdown */ 368 payload.gos_id = 0; /* self */ 369 370 return ps3_sys_manager_write(dev, &header, &payload); 371 } 372 373 /** 374 * ps3_sys_manager_send_response - Send a 'response' to the system manager. 375 * @status: zero = success, others fail. 376 * 377 * The guest sends this message to the system manager to acnowledge success or 378 * failure of a command sent by the system manager. 379 */ 380 381 static int ps3_sys_manager_send_response(struct ps3_system_bus_device *dev, 382 u64 status) 383 { 384 struct ps3_sys_manager_header header; 385 struct { 386 u8 version; 387 u8 reserved_1[3]; 388 u8 status; 389 u8 reserved_2[11]; 390 } payload; 391 392 BUILD_BUG_ON(sizeof(payload) != 16); 393 394 dev_dbg(&dev->core, "%s:%d: (%s)\n", __func__, __LINE__, 395 (status ? "nak" : "ack")); 396 397 memset(&header, 0, sizeof(header)); 398 header.version = 1; 399 header.size = 16; 400 header.payload_size = 16; 401 header.service_id = PS3_SM_SERVICE_ID_RESPONSE; 402 403 memset(&payload, 0, sizeof(payload)); 404 payload.version = 1; 405 payload.status = status; 406 407 return ps3_sys_manager_write(dev, &header, &payload); 408 } 409 410 /** 411 * ps3_sys_manager_handle_event - Second stage event msg handler. 412 * 413 */ 414 415 static int ps3_sys_manager_handle_event(struct ps3_system_bus_device *dev) 416 { 417 int result; 418 struct { 419 u8 version; 420 u8 type; 421 u8 reserved_1[2]; 422 u32 value; 423 u8 reserved_2[8]; 424 } event; 425 426 BUILD_BUG_ON(sizeof(event) != 16); 427 428 result = ps3_vuart_read(dev, &event, sizeof(event)); 429 BUG_ON(result && "need to retry here"); 430 431 if (event.version != 1) { 432 dev_dbg(&dev->core, "%s:%d: unsupported event version (%u)\n", 433 __func__, __LINE__, event.version); 434 return -EIO; 435 } 436 437 switch (event.type) { 438 case PS3_SM_EVENT_POWER_PRESSED: 439 dev_dbg(&dev->core, "%s:%d: POWER_PRESSED (%s)\n", 440 __func__, __LINE__, 441 (event.value == PS3_SM_BUTTON_EVENT_SOFT ? "soft" 442 : "hard")); 443 ps3_sm_force_power_off = 1; 444 /* 445 * A memory barrier is use here to sync memory since 446 * ps3_sys_manager_final_restart() could be called on 447 * another cpu. 448 */ 449 wmb(); 450 kill_cad_pid(SIGINT, 1); /* ctrl_alt_del */ 451 break; 452 case PS3_SM_EVENT_POWER_RELEASED: 453 dev_dbg(&dev->core, "%s:%d: POWER_RELEASED (%u ms)\n", 454 __func__, __LINE__, event.value); 455 break; 456 case PS3_SM_EVENT_RESET_PRESSED: 457 dev_dbg(&dev->core, "%s:%d: RESET_PRESSED (%s)\n", 458 __func__, __LINE__, 459 (event.value == PS3_SM_BUTTON_EVENT_SOFT ? "soft" 460 : "hard")); 461 ps3_sm_force_power_off = 0; 462 /* 463 * A memory barrier is use here to sync memory since 464 * ps3_sys_manager_final_restart() could be called on 465 * another cpu. 466 */ 467 wmb(); 468 kill_cad_pid(SIGINT, 1); /* ctrl_alt_del */ 469 break; 470 case PS3_SM_EVENT_RESET_RELEASED: 471 dev_dbg(&dev->core, "%s:%d: RESET_RELEASED (%u ms)\n", 472 __func__, __LINE__, event.value); 473 break; 474 case PS3_SM_EVENT_THERMAL_ALERT: 475 dev_dbg(&dev->core, "%s:%d: THERMAL_ALERT (zone %u)\n", 476 __func__, __LINE__, event.value); 477 pr_info("PS3 Thermal Alert Zone %u\n", event.value); 478 break; 479 case PS3_SM_EVENT_THERMAL_CLEARED: 480 dev_dbg(&dev->core, "%s:%d: THERMAL_CLEARED (zone %u)\n", 481 __func__, __LINE__, event.value); 482 break; 483 default: 484 dev_dbg(&dev->core, "%s:%d: unknown event (%u)\n", 485 __func__, __LINE__, event.type); 486 return -EIO; 487 } 488 489 return 0; 490 } 491 /** 492 * ps3_sys_manager_handle_cmd - Second stage command msg handler. 493 * 494 * The system manager sends this in reply to a 'request' message from the guest. 495 */ 496 497 static int ps3_sys_manager_handle_cmd(struct ps3_system_bus_device *dev) 498 { 499 int result; 500 struct { 501 u8 version; 502 u8 type; 503 u8 reserved_1[14]; 504 } cmd; 505 506 BUILD_BUG_ON(sizeof(cmd) != 16); 507 508 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); 509 510 result = ps3_vuart_read(dev, &cmd, sizeof(cmd)); 511 BUG_ON(result && "need to retry here"); 512 513 if (result) 514 return result; 515 516 if (cmd.version != 1) { 517 dev_dbg(&dev->core, "%s:%d: unsupported cmd version (%u)\n", 518 __func__, __LINE__, cmd.version); 519 return -EIO; 520 } 521 522 if (cmd.type != PS3_SM_CMD_SHUTDOWN) { 523 dev_dbg(&dev->core, "%s:%d: unknown cmd (%u)\n", 524 __func__, __LINE__, cmd.type); 525 return -EIO; 526 } 527 528 ps3_sys_manager_send_response(dev, 0); 529 return 0; 530 } 531 532 /** 533 * ps3_sys_manager_handle_msg - First stage msg handler. 534 * 535 * Can be called directly to manually poll vuart and pump message handler. 536 */ 537 538 static int ps3_sys_manager_handle_msg(struct ps3_system_bus_device *dev) 539 { 540 int result; 541 struct ps3_sys_manager_header header; 542 543 result = ps3_vuart_read(dev, &header, 544 sizeof(struct ps3_sys_manager_header)); 545 546 if (result) 547 return result; 548 549 if (header.version != 1) { 550 dev_dbg(&dev->core, "%s:%d: unsupported header version (%u)\n", 551 __func__, __LINE__, header.version); 552 dump_sm_header(&header); 553 goto fail_header; 554 } 555 556 BUILD_BUG_ON(sizeof(header) != 16); 557 558 if (header.size != 16 || (header.payload_size != 8 559 && header.payload_size != 16)) { 560 dump_sm_header(&header); 561 BUG(); 562 } 563 564 switch (header.service_id) { 565 case PS3_SM_SERVICE_ID_EXTERN_EVENT: 566 dev_dbg(&dev->core, "%s:%d: EVENT\n", __func__, __LINE__); 567 return ps3_sys_manager_handle_event(dev); 568 case PS3_SM_SERVICE_ID_COMMAND: 569 dev_dbg(&dev->core, "%s:%d: COMMAND\n", __func__, __LINE__); 570 return ps3_sys_manager_handle_cmd(dev); 571 case PS3_SM_SERVICE_ID_REQUEST_ERROR: 572 dev_dbg(&dev->core, "%s:%d: REQUEST_ERROR\n", __func__, 573 __LINE__); 574 dump_sm_header(&header); 575 break; 576 default: 577 dev_dbg(&dev->core, "%s:%d: unknown service_id (%u)\n", 578 __func__, __LINE__, header.service_id); 579 break; 580 } 581 goto fail_id; 582 583 fail_header: 584 ps3_vuart_clear_rx_bytes(dev, 0); 585 return -EIO; 586 fail_id: 587 ps3_vuart_clear_rx_bytes(dev, header.payload_size); 588 return -EIO; 589 } 590 591 static void ps3_sys_manager_fin(struct ps3_system_bus_device *dev) 592 { 593 ps3_sys_manager_send_request_shutdown(dev); 594 595 pr_emerg("System Halted, OK to turn off power\n"); 596 597 while (ps3_sys_manager_handle_msg(dev)) { 598 /* pause until next DEC interrupt */ 599 lv1_pause(0); 600 } 601 602 while (1) { 603 /* pause, ignoring DEC interrupt */ 604 lv1_pause(1); 605 } 606 } 607 608 /** 609 * ps3_sys_manager_final_power_off - The final platform machine_power_off routine. 610 * 611 * This routine never returns. The routine disables asynchronous vuart reads 612 * then spins calling ps3_sys_manager_handle_msg() to receive and acknowledge 613 * the shutdown command sent from the system manager. Soon after the 614 * acknowledgement is sent the lpar is destroyed by the HV. This routine 615 * should only be called from ps3_power_off() through 616 * ps3_sys_manager_ops.power_off. 617 */ 618 619 static void ps3_sys_manager_final_power_off(struct ps3_system_bus_device *dev) 620 { 621 BUG_ON(!dev); 622 623 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); 624 625 ps3_vuart_cancel_async(dev); 626 627 ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_SHUTDOWN, 628 user_wake_sources); 629 630 ps3_sys_manager_fin(dev); 631 } 632 633 /** 634 * ps3_sys_manager_final_restart - The final platform machine_restart routine. 635 * 636 * This routine never returns. The routine disables asynchronous vuart reads 637 * then spins calling ps3_sys_manager_handle_msg() to receive and acknowledge 638 * the shutdown command sent from the system manager. Soon after the 639 * acknowledgement is sent the lpar is destroyed by the HV. This routine 640 * should only be called from ps3_restart() through ps3_sys_manager_ops.restart. 641 */ 642 643 static void ps3_sys_manager_final_restart(struct ps3_system_bus_device *dev) 644 { 645 BUG_ON(!dev); 646 647 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); 648 649 /* Check if we got here via a power button event. */ 650 651 if (ps3_sm_force_power_off) { 652 dev_dbg(&dev->core, "%s:%d: forcing poweroff\n", 653 __func__, __LINE__); 654 ps3_sys_manager_final_power_off(dev); 655 } 656 657 ps3_vuart_cancel_async(dev); 658 659 ps3_sys_manager_send_attr(dev, 0); 660 ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_REBOOT, 661 user_wake_sources); 662 663 ps3_sys_manager_fin(dev); 664 } 665 666 /** 667 * ps3_sys_manager_get_wol - Get wake-on-lan setting. 668 */ 669 670 int ps3_sys_manager_get_wol(void) 671 { 672 pr_debug("%s:%d\n", __func__, __LINE__); 673 674 return (user_wake_sources & PS3_SM_WAKE_W_O_L) != 0; 675 } 676 EXPORT_SYMBOL_GPL(ps3_sys_manager_get_wol); 677 678 /** 679 * ps3_sys_manager_set_wol - Set wake-on-lan setting. 680 */ 681 682 void ps3_sys_manager_set_wol(int state) 683 { 684 static DEFINE_MUTEX(mutex); 685 686 mutex_lock(&mutex); 687 688 pr_debug("%s:%d: %d\n", __func__, __LINE__, state); 689 690 if (state) 691 user_wake_sources |= PS3_SM_WAKE_W_O_L; 692 else 693 user_wake_sources &= ~PS3_SM_WAKE_W_O_L; 694 mutex_unlock(&mutex); 695 } 696 EXPORT_SYMBOL_GPL(ps3_sys_manager_set_wol); 697 698 /** 699 * ps3_sys_manager_work - Asynchronous read handler. 700 * 701 * Signaled when PS3_SM_RX_MSG_LEN_MIN bytes arrive at the vuart port. 702 */ 703 704 static void ps3_sys_manager_work(struct ps3_system_bus_device *dev) 705 { 706 ps3_sys_manager_handle_msg(dev); 707 ps3_vuart_read_async(dev, PS3_SM_RX_MSG_LEN_MIN); 708 } 709 710 static int ps3_sys_manager_probe(struct ps3_system_bus_device *dev) 711 { 712 int result; 713 struct ps3_sys_manager_ops ops; 714 715 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); 716 717 ops.power_off = ps3_sys_manager_final_power_off; 718 ops.restart = ps3_sys_manager_final_restart; 719 ops.dev = dev; 720 721 /* ps3_sys_manager_register_ops copies ops. */ 722 723 ps3_sys_manager_register_ops(&ops); 724 725 result = ps3_sys_manager_send_attr(dev, PS3_SM_ATTR_ALL); 726 BUG_ON(result); 727 728 result = ps3_vuart_read_async(dev, PS3_SM_RX_MSG_LEN_MIN); 729 BUG_ON(result); 730 731 return result; 732 } 733 734 static int ps3_sys_manager_remove(struct ps3_system_bus_device *dev) 735 { 736 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); 737 return 0; 738 } 739 740 static void ps3_sys_manager_shutdown(struct ps3_system_bus_device *dev) 741 { 742 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); 743 } 744 745 static struct ps3_vuart_port_driver ps3_sys_manager = { 746 .core.match_id = PS3_MATCH_ID_SYSTEM_MANAGER, 747 .core.core.name = "ps3_sys_manager", 748 .probe = ps3_sys_manager_probe, 749 .remove = ps3_sys_manager_remove, 750 .shutdown = ps3_sys_manager_shutdown, 751 .work = ps3_sys_manager_work, 752 }; 753 754 static int __init ps3_sys_manager_init(void) 755 { 756 if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) 757 return -ENODEV; 758 759 return ps3_vuart_port_driver_register(&ps3_sys_manager); 760 } 761 762 module_init(ps3_sys_manager_init); 763 /* Module remove not supported. */ 764 765 MODULE_AUTHOR("Sony Corporation"); 766 MODULE_LICENSE("GPL v2"); 767 MODULE_DESCRIPTION("PS3 System Manager"); 768 MODULE_ALIAS(PS3_MODULE_ALIAS_SYSTEM_MANAGER); 769