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 26 #include <asm/firmware.h> 27 #include <asm/lv1call.h> 28 #include <asm/ps3.h> 29 30 #include "vuart.h" 31 32 /** 33 * ps3_sys_manager - PS3 system manager driver. 34 * 35 * The system manager provides an asynchronous system event notification 36 * mechanism for reporting events like thermal alert and button presses to 37 * guests. It also provides support to control system shutdown and startup. 38 * 39 * The actual system manager is implemented as an application running in the 40 * system policy module in lpar_1. Guests communicate with the system manager 41 * through port 2 of the vuart using a simple packet message protocol. 42 * Messages are comprised of a fixed field header followed by a message 43 * specific payload. 44 */ 45 46 /** 47 * struct ps3_sys_manager_header - System manager message header. 48 * @version: Header version, currently 1. 49 * @size: Header size in bytes, curently 16. 50 * @payload_size: Message payload size in bytes. 51 * @service_id: Message type, one of enum ps3_sys_manager_service_id. 52 * @request_tag: Unique number to identify reply. 53 */ 54 55 struct ps3_sys_manager_header { 56 /* version 1 */ 57 u8 version; 58 u8 size; 59 u16 reserved_1; 60 u32 payload_size; 61 u16 service_id; 62 u16 reserved_2; 63 u32 request_tag; 64 }; 65 66 #define dump_sm_header(_h) _dump_sm_header(_h, __func__, __LINE__) 67 static void __maybe_unused _dump_sm_header( 68 const struct ps3_sys_manager_header *h, const char *func, int line) 69 { 70 pr_debug("%s:%d: version: %xh\n", func, line, h->version); 71 pr_debug("%s:%d: size: %xh\n", func, line, h->size); 72 pr_debug("%s:%d: payload_size: %xh\n", func, line, h->payload_size); 73 pr_debug("%s:%d: service_id: %xh\n", func, line, h->service_id); 74 pr_debug("%s:%d: request_tag: %xh\n", func, line, h->request_tag); 75 } 76 77 /** 78 * @PS3_SM_RX_MSG_LEN_MIN - Shortest received message length. 79 * @PS3_SM_RX_MSG_LEN_MAX - Longest received message length. 80 * 81 * Currently all messages received from the system manager are either 82 * (16 bytes header + 8 bytes payload = 24 bytes) or (16 bytes header 83 * + 16 bytes payload = 32 bytes). This knowlege is used to simplify 84 * the logic. 85 */ 86 87 enum { 88 PS3_SM_RX_MSG_LEN_MIN = 24, 89 PS3_SM_RX_MSG_LEN_MAX = 32, 90 }; 91 92 /** 93 * enum ps3_sys_manager_service_id - Message header service_id. 94 * @PS3_SM_SERVICE_ID_REQUEST: guest --> sys_manager. 95 * @PS3_SM_SERVICE_ID_REQUEST_ERROR: guest <-- sys_manager. 96 * @PS3_SM_SERVICE_ID_COMMAND: guest <-- sys_manager. 97 * @PS3_SM_SERVICE_ID_RESPONSE: guest --> sys_manager. 98 * @PS3_SM_SERVICE_ID_SET_ATTR: guest --> sys_manager. 99 * @PS3_SM_SERVICE_ID_EXTERN_EVENT: guest <-- sys_manager. 100 * @PS3_SM_SERVICE_ID_SET_NEXT_OP: guest --> sys_manager. 101 * 102 * PS3_SM_SERVICE_ID_REQUEST_ERROR is returned for invalid data values in a 103 * a PS3_SM_SERVICE_ID_REQUEST message. It also seems to be returned when 104 * a REQUEST message is sent at the wrong time. 105 */ 106 107 enum ps3_sys_manager_service_id { 108 /* version 1 */ 109 PS3_SM_SERVICE_ID_REQUEST = 1, 110 PS3_SM_SERVICE_ID_RESPONSE = 2, 111 PS3_SM_SERVICE_ID_COMMAND = 3, 112 PS3_SM_SERVICE_ID_EXTERN_EVENT = 4, 113 PS3_SM_SERVICE_ID_SET_NEXT_OP = 5, 114 PS3_SM_SERVICE_ID_REQUEST_ERROR = 6, 115 PS3_SM_SERVICE_ID_SET_ATTR = 8, 116 }; 117 118 /** 119 * enum ps3_sys_manager_attr - Notification attribute (bit position mask). 120 * @PS3_SM_ATTR_POWER: Power button. 121 * @PS3_SM_ATTR_RESET: Reset button, not available on retail console. 122 * @PS3_SM_ATTR_THERMAL: Sytem thermal alert. 123 * @PS3_SM_ATTR_CONTROLLER: Remote controller event. 124 * @PS3_SM_ATTR_ALL: Logical OR of all. 125 * 126 * The guest tells the system manager which events it is interested in receiving 127 * notice of by sending the system manager a logical OR of notification 128 * attributes via the ps3_sys_manager_send_attr() routine. 129 */ 130 131 enum ps3_sys_manager_attr { 132 /* version 1 */ 133 PS3_SM_ATTR_POWER = 1, 134 PS3_SM_ATTR_RESET = 2, 135 PS3_SM_ATTR_THERMAL = 4, 136 PS3_SM_ATTR_CONTROLLER = 8, /* bogus? */ 137 PS3_SM_ATTR_ALL = 0x0f, 138 }; 139 140 /** 141 * enum ps3_sys_manager_event - External event type, reported by system manager. 142 * @PS3_SM_EVENT_POWER_PRESSED: payload.value = 143 * enum ps3_sys_manager_button_event. 144 * @PS3_SM_EVENT_POWER_RELEASED: payload.value = time pressed in millisec. 145 * @PS3_SM_EVENT_RESET_PRESSED: payload.value = 146 * enum ps3_sys_manager_button_event. 147 * @PS3_SM_EVENT_RESET_RELEASED: payload.value = time pressed in millisec. 148 * @PS3_SM_EVENT_THERMAL_ALERT: payload.value = thermal zone id. 149 * @PS3_SM_EVENT_THERMAL_CLEARED: payload.value = thermal zone id. 150 */ 151 152 enum ps3_sys_manager_event { 153 /* version 1 */ 154 PS3_SM_EVENT_POWER_PRESSED = 3, 155 PS3_SM_EVENT_POWER_RELEASED = 4, 156 PS3_SM_EVENT_RESET_PRESSED = 5, 157 PS3_SM_EVENT_RESET_RELEASED = 6, 158 PS3_SM_EVENT_THERMAL_ALERT = 7, 159 PS3_SM_EVENT_THERMAL_CLEARED = 8, 160 /* no info on controller events */ 161 }; 162 163 /** 164 * enum ps3_sys_manager_button_event - Button event payload values. 165 * @PS3_SM_BUTTON_EVENT_HARD: Hardware generated event. 166 * @PS3_SM_BUTTON_EVENT_SOFT: Software generated event. 167 */ 168 169 enum ps3_sys_manager_button_event { 170 PS3_SM_BUTTON_EVENT_HARD = 0, 171 PS3_SM_BUTTON_EVENT_SOFT = 1, 172 }; 173 174 /** 175 * enum ps3_sys_manager_next_op - Operation to perform after lpar is destroyed. 176 */ 177 178 enum ps3_sys_manager_next_op { 179 /* version 3 */ 180 PS3_SM_NEXT_OP_SYS_SHUTDOWN = 1, 181 PS3_SM_NEXT_OP_SYS_REBOOT = 2, 182 PS3_SM_NEXT_OP_LPAR_REBOOT = 0x82, 183 }; 184 185 /** 186 * enum ps3_sys_manager_wake_source - Next-op wakeup source (bit position mask). 187 * @PS3_SM_WAKE_DEFAULT: Disk insert, power button, eject button, IR 188 * controller, and bluetooth controller. 189 * @PS3_SM_WAKE_RTC: 190 * @PS3_SM_WAKE_RTC_ERROR: 191 * @PS3_SM_WAKE_W_O_L: Ether or wireless LAN. 192 * @PS3_SM_WAKE_P_O_R: Power on reset. 193 * 194 * Additional wakeup sources when specifying PS3_SM_NEXT_OP_SYS_SHUTDOWN. 195 * The system will always wake from the PS3_SM_WAKE_DEFAULT sources. 196 * Sources listed here are the only ones available to guests in the 197 * other-os lpar. 198 */ 199 200 enum ps3_sys_manager_wake_source { 201 /* version 3 */ 202 PS3_SM_WAKE_DEFAULT = 0, 203 PS3_SM_WAKE_RTC = 0x00000040, 204 PS3_SM_WAKE_RTC_ERROR = 0x00000080, 205 PS3_SM_WAKE_W_O_L = 0x00000400, 206 PS3_SM_WAKE_P_O_R = 0x80000000, 207 }; 208 209 /** 210 * user_wake_sources - User specified wakeup sources. 211 * 212 * Logical OR of enum ps3_sys_manager_wake_source types. 213 */ 214 215 static u32 user_wake_sources = PS3_SM_WAKE_DEFAULT; 216 217 /** 218 * enum ps3_sys_manager_cmd - Command from system manager to guest. 219 * 220 * The guest completes the actions needed, then acks or naks the command via 221 * ps3_sys_manager_send_response(). In the case of @PS3_SM_CMD_SHUTDOWN, 222 * the guest must be fully prepared for a system poweroff prior to acking the 223 * command. 224 */ 225 226 enum ps3_sys_manager_cmd { 227 /* version 1 */ 228 PS3_SM_CMD_SHUTDOWN = 1, /* shutdown guest OS */ 229 }; 230 231 /** 232 * ps3_sm_force_power_off - Poweroff helper. 233 * 234 * A global variable used to force a poweroff when the power button has 235 * been pressed irrespective of how init handles the ctrl_alt_del signal. 236 * 237 */ 238 239 static unsigned int ps3_sm_force_power_off; 240 241 /** 242 * ps3_sys_manager_write - Helper to write a two part message to the vuart. 243 * 244 */ 245 246 static int ps3_sys_manager_write(struct ps3_system_bus_device *dev, 247 const struct ps3_sys_manager_header *header, const void *payload) 248 { 249 int result; 250 251 BUG_ON(header->version != 1); 252 BUG_ON(header->size != 16); 253 BUG_ON(header->payload_size != 8 && header->payload_size != 16); 254 BUG_ON(header->service_id > 8); 255 256 result = ps3_vuart_write(dev, header, 257 sizeof(struct ps3_sys_manager_header)); 258 259 if (!result) 260 result = ps3_vuart_write(dev, payload, header->payload_size); 261 262 return result; 263 } 264 265 /** 266 * ps3_sys_manager_send_attr - Send a 'set attribute' to the system manager. 267 * 268 */ 269 270 static int ps3_sys_manager_send_attr(struct ps3_system_bus_device *dev, 271 enum ps3_sys_manager_attr attr) 272 { 273 struct ps3_sys_manager_header header; 274 struct { 275 u8 version; 276 u8 reserved_1[3]; 277 u32 attribute; 278 } payload; 279 280 BUILD_BUG_ON(sizeof(payload) != 8); 281 282 dev_dbg(&dev->core, "%s:%d: %xh\n", __func__, __LINE__, attr); 283 284 memset(&header, 0, sizeof(header)); 285 header.version = 1; 286 header.size = 16; 287 header.payload_size = 16; 288 header.service_id = PS3_SM_SERVICE_ID_SET_ATTR; 289 290 memset(&payload, 0, sizeof(payload)); 291 payload.version = 1; 292 payload.attribute = attr; 293 294 return ps3_sys_manager_write(dev, &header, &payload); 295 } 296 297 /** 298 * ps3_sys_manager_send_next_op - Send a 'set next op' to the system manager. 299 * 300 * Tell the system manager what to do after this lpar is destroyed. 301 */ 302 303 static int ps3_sys_manager_send_next_op(struct ps3_system_bus_device *dev, 304 enum ps3_sys_manager_next_op op, 305 enum ps3_sys_manager_wake_source wake_source) 306 { 307 struct ps3_sys_manager_header header; 308 struct { 309 u8 version; 310 u8 type; 311 u8 gos_id; 312 u8 reserved_1; 313 u32 wake_source; 314 u8 reserved_2[8]; 315 } payload; 316 317 BUILD_BUG_ON(sizeof(payload) != 16); 318 319 dev_dbg(&dev->core, "%s:%d: (%xh)\n", __func__, __LINE__, op); 320 321 memset(&header, 0, sizeof(header)); 322 header.version = 1; 323 header.size = 16; 324 header.payload_size = 16; 325 header.service_id = PS3_SM_SERVICE_ID_SET_NEXT_OP; 326 327 memset(&payload, 0, sizeof(payload)); 328 payload.version = 3; 329 payload.type = op; 330 payload.gos_id = 3; /* other os */ 331 payload.wake_source = wake_source; 332 333 return ps3_sys_manager_write(dev, &header, &payload); 334 } 335 336 /** 337 * ps3_sys_manager_send_request_shutdown - Send 'request' to the system manager. 338 * 339 * The guest sends this message to request an operation or action of the system 340 * manager. The reply is a command message from the system manager. In the 341 * command handler the guest performs the requested operation. The result of 342 * the command is then communicated back to the system manager with a response 343 * message. 344 * 345 * Currently, the only supported request is the 'shutdown self' request. 346 */ 347 348 static int ps3_sys_manager_send_request_shutdown( 349 struct ps3_system_bus_device *dev) 350 { 351 struct ps3_sys_manager_header header; 352 struct { 353 u8 version; 354 u8 type; 355 u8 gos_id; 356 u8 reserved_1[13]; 357 } payload; 358 359 BUILD_BUG_ON(sizeof(payload) != 16); 360 361 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); 362 363 memset(&header, 0, sizeof(header)); 364 header.version = 1; 365 header.size = 16; 366 header.payload_size = 16; 367 header.service_id = PS3_SM_SERVICE_ID_REQUEST; 368 369 memset(&payload, 0, sizeof(payload)); 370 payload.version = 1; 371 payload.type = 1; /* shutdown */ 372 payload.gos_id = 0; /* self */ 373 374 return ps3_sys_manager_write(dev, &header, &payload); 375 } 376 377 /** 378 * ps3_sys_manager_send_response - Send a 'response' to the system manager. 379 * @status: zero = success, others fail. 380 * 381 * The guest sends this message to the system manager to acnowledge success or 382 * failure of a command sent by the system manager. 383 */ 384 385 static int ps3_sys_manager_send_response(struct ps3_system_bus_device *dev, 386 u64 status) 387 { 388 struct ps3_sys_manager_header header; 389 struct { 390 u8 version; 391 u8 reserved_1[3]; 392 u8 status; 393 u8 reserved_2[11]; 394 } payload; 395 396 BUILD_BUG_ON(sizeof(payload) != 16); 397 398 dev_dbg(&dev->core, "%s:%d: (%s)\n", __func__, __LINE__, 399 (status ? "nak" : "ack")); 400 401 memset(&header, 0, sizeof(header)); 402 header.version = 1; 403 header.size = 16; 404 header.payload_size = 16; 405 header.service_id = PS3_SM_SERVICE_ID_RESPONSE; 406 407 memset(&payload, 0, sizeof(payload)); 408 payload.version = 1; 409 payload.status = status; 410 411 return ps3_sys_manager_write(dev, &header, &payload); 412 } 413 414 /** 415 * ps3_sys_manager_handle_event - Second stage event msg handler. 416 * 417 */ 418 419 static int ps3_sys_manager_handle_event(struct ps3_system_bus_device *dev) 420 { 421 int result; 422 struct { 423 u8 version; 424 u8 type; 425 u8 reserved_1[2]; 426 u32 value; 427 u8 reserved_2[8]; 428 } event; 429 430 BUILD_BUG_ON(sizeof(event) != 16); 431 432 result = ps3_vuart_read(dev, &event, sizeof(event)); 433 BUG_ON(result && "need to retry here"); 434 435 if (event.version != 1) { 436 dev_dbg(&dev->core, "%s:%d: unsupported event version (%u)\n", 437 __func__, __LINE__, event.version); 438 return -EIO; 439 } 440 441 switch (event.type) { 442 case PS3_SM_EVENT_POWER_PRESSED: 443 dev_dbg(&dev->core, "%s:%d: POWER_PRESSED (%s)\n", 444 __func__, __LINE__, 445 (event.value == PS3_SM_BUTTON_EVENT_SOFT ? "soft" 446 : "hard")); 447 ps3_sm_force_power_off = 1; 448 /* 449 * A memory barrier is use here to sync memory since 450 * ps3_sys_manager_final_restart() could be called on 451 * another cpu. 452 */ 453 wmb(); 454 kill_cad_pid(SIGINT, 1); /* ctrl_alt_del */ 455 break; 456 case PS3_SM_EVENT_POWER_RELEASED: 457 dev_dbg(&dev->core, "%s:%d: POWER_RELEASED (%u ms)\n", 458 __func__, __LINE__, event.value); 459 break; 460 case PS3_SM_EVENT_RESET_PRESSED: 461 dev_dbg(&dev->core, "%s:%d: RESET_PRESSED (%s)\n", 462 __func__, __LINE__, 463 (event.value == PS3_SM_BUTTON_EVENT_SOFT ? "soft" 464 : "hard")); 465 ps3_sm_force_power_off = 0; 466 /* 467 * A memory barrier is use here to sync memory since 468 * ps3_sys_manager_final_restart() could be called on 469 * another cpu. 470 */ 471 wmb(); 472 kill_cad_pid(SIGINT, 1); /* ctrl_alt_del */ 473 break; 474 case PS3_SM_EVENT_RESET_RELEASED: 475 dev_dbg(&dev->core, "%s:%d: RESET_RELEASED (%u ms)\n", 476 __func__, __LINE__, event.value); 477 break; 478 case PS3_SM_EVENT_THERMAL_ALERT: 479 dev_dbg(&dev->core, "%s:%d: THERMAL_ALERT (zone %u)\n", 480 __func__, __LINE__, event.value); 481 pr_info("PS3 Thermal Alert Zone %u\n", event.value); 482 break; 483 case PS3_SM_EVENT_THERMAL_CLEARED: 484 dev_dbg(&dev->core, "%s:%d: THERMAL_CLEARED (zone %u)\n", 485 __func__, __LINE__, event.value); 486 break; 487 default: 488 dev_dbg(&dev->core, "%s:%d: unknown event (%u)\n", 489 __func__, __LINE__, event.type); 490 return -EIO; 491 } 492 493 return 0; 494 } 495 /** 496 * ps3_sys_manager_handle_cmd - Second stage command msg handler. 497 * 498 * The system manager sends this in reply to a 'request' message from the guest. 499 */ 500 501 static int ps3_sys_manager_handle_cmd(struct ps3_system_bus_device *dev) 502 { 503 int result; 504 struct { 505 u8 version; 506 u8 type; 507 u8 reserved_1[14]; 508 } cmd; 509 510 BUILD_BUG_ON(sizeof(cmd) != 16); 511 512 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); 513 514 result = ps3_vuart_read(dev, &cmd, sizeof(cmd)); 515 BUG_ON(result && "need to retry here"); 516 517 if (result) 518 return result; 519 520 if (cmd.version != 1) { 521 dev_dbg(&dev->core, "%s:%d: unsupported cmd version (%u)\n", 522 __func__, __LINE__, cmd.version); 523 return -EIO; 524 } 525 526 if (cmd.type != PS3_SM_CMD_SHUTDOWN) { 527 dev_dbg(&dev->core, "%s:%d: unknown cmd (%u)\n", 528 __func__, __LINE__, cmd.type); 529 return -EIO; 530 } 531 532 ps3_sys_manager_send_response(dev, 0); 533 return 0; 534 } 535 536 /** 537 * ps3_sys_manager_handle_msg - First stage msg handler. 538 * 539 * Can be called directly to manually poll vuart and pump message handler. 540 */ 541 542 static int ps3_sys_manager_handle_msg(struct ps3_system_bus_device *dev) 543 { 544 int result; 545 struct ps3_sys_manager_header header; 546 547 result = ps3_vuart_read(dev, &header, 548 sizeof(struct ps3_sys_manager_header)); 549 550 if (result) 551 return result; 552 553 if (header.version != 1) { 554 dev_dbg(&dev->core, "%s:%d: unsupported header version (%u)\n", 555 __func__, __LINE__, header.version); 556 dump_sm_header(&header); 557 goto fail_header; 558 } 559 560 BUILD_BUG_ON(sizeof(header) != 16); 561 562 if (header.size != 16 || (header.payload_size != 8 563 && header.payload_size != 16)) { 564 dump_sm_header(&header); 565 BUG(); 566 } 567 568 switch (header.service_id) { 569 case PS3_SM_SERVICE_ID_EXTERN_EVENT: 570 dev_dbg(&dev->core, "%s:%d: EVENT\n", __func__, __LINE__); 571 return ps3_sys_manager_handle_event(dev); 572 case PS3_SM_SERVICE_ID_COMMAND: 573 dev_dbg(&dev->core, "%s:%d: COMMAND\n", __func__, __LINE__); 574 return ps3_sys_manager_handle_cmd(dev); 575 case PS3_SM_SERVICE_ID_REQUEST_ERROR: 576 dev_dbg(&dev->core, "%s:%d: REQUEST_ERROR\n", __func__, 577 __LINE__); 578 dump_sm_header(&header); 579 break; 580 default: 581 dev_dbg(&dev->core, "%s:%d: unknown service_id (%u)\n", 582 __func__, __LINE__, header.service_id); 583 break; 584 } 585 goto fail_id; 586 587 fail_header: 588 ps3_vuart_clear_rx_bytes(dev, 0); 589 return -EIO; 590 fail_id: 591 ps3_vuart_clear_rx_bytes(dev, header.payload_size); 592 return -EIO; 593 } 594 595 static void ps3_sys_manager_fin(struct ps3_system_bus_device *dev) 596 { 597 ps3_sys_manager_send_request_shutdown(dev); 598 599 pr_emerg("System Halted, OK to turn off power\n"); 600 601 while (ps3_sys_manager_handle_msg(dev)) { 602 /* pause until next DEC interrupt */ 603 lv1_pause(0); 604 } 605 606 while (1) { 607 /* pause, ignoring DEC interrupt */ 608 lv1_pause(1); 609 } 610 } 611 612 /** 613 * ps3_sys_manager_final_power_off - The final platform machine_power_off routine. 614 * 615 * This routine never returns. The routine disables asynchronous vuart reads 616 * then spins calling ps3_sys_manager_handle_msg() to receive and acknowledge 617 * the shutdown command sent from the system manager. Soon after the 618 * acknowledgement is sent the lpar is destroyed by the HV. This routine 619 * should only be called from ps3_power_off() through 620 * ps3_sys_manager_ops.power_off. 621 */ 622 623 static void ps3_sys_manager_final_power_off(struct ps3_system_bus_device *dev) 624 { 625 BUG_ON(!dev); 626 627 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); 628 629 ps3_vuart_cancel_async(dev); 630 631 ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_SHUTDOWN, 632 user_wake_sources); 633 634 ps3_sys_manager_fin(dev); 635 } 636 637 /** 638 * ps3_sys_manager_final_restart - The final platform machine_restart routine. 639 * 640 * This routine never returns. The routine disables asynchronous vuart reads 641 * then spins calling ps3_sys_manager_handle_msg() to receive and acknowledge 642 * the shutdown command sent from the system manager. Soon after the 643 * acknowledgement is sent the lpar is destroyed by the HV. This routine 644 * should only be called from ps3_restart() through ps3_sys_manager_ops.restart. 645 */ 646 647 static void ps3_sys_manager_final_restart(struct ps3_system_bus_device *dev) 648 { 649 BUG_ON(!dev); 650 651 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); 652 653 /* Check if we got here via a power button event. */ 654 655 if (ps3_sm_force_power_off) { 656 dev_dbg(&dev->core, "%s:%d: forcing poweroff\n", 657 __func__, __LINE__); 658 ps3_sys_manager_final_power_off(dev); 659 } 660 661 ps3_vuart_cancel_async(dev); 662 663 ps3_sys_manager_send_attr(dev, 0); 664 ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_REBOOT, 665 user_wake_sources); 666 667 ps3_sys_manager_fin(dev); 668 } 669 670 /** 671 * ps3_sys_manager_get_wol - Get wake-on-lan setting. 672 */ 673 674 int ps3_sys_manager_get_wol(void) 675 { 676 pr_debug("%s:%d\n", __func__, __LINE__); 677 678 return (user_wake_sources & PS3_SM_WAKE_W_O_L) != 0; 679 } 680 EXPORT_SYMBOL_GPL(ps3_sys_manager_get_wol); 681 682 /** 683 * ps3_sys_manager_set_wol - Set wake-on-lan setting. 684 */ 685 686 void ps3_sys_manager_set_wol(int state) 687 { 688 static DEFINE_MUTEX(mutex); 689 690 mutex_lock(&mutex); 691 692 pr_debug("%s:%d: %d\n", __func__, __LINE__, state); 693 694 if (state) 695 user_wake_sources |= PS3_SM_WAKE_W_O_L; 696 else 697 user_wake_sources &= ~PS3_SM_WAKE_W_O_L; 698 mutex_unlock(&mutex); 699 } 700 EXPORT_SYMBOL_GPL(ps3_sys_manager_set_wol); 701 702 /** 703 * ps3_sys_manager_work - Asynchronous read handler. 704 * 705 * Signaled when PS3_SM_RX_MSG_LEN_MIN bytes arrive at the vuart port. 706 */ 707 708 static void ps3_sys_manager_work(struct ps3_system_bus_device *dev) 709 { 710 ps3_sys_manager_handle_msg(dev); 711 ps3_vuart_read_async(dev, PS3_SM_RX_MSG_LEN_MIN); 712 } 713 714 static int ps3_sys_manager_probe(struct ps3_system_bus_device *dev) 715 { 716 int result; 717 struct ps3_sys_manager_ops ops; 718 719 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); 720 721 ops.power_off = ps3_sys_manager_final_power_off; 722 ops.restart = ps3_sys_manager_final_restart; 723 ops.dev = dev; 724 725 /* ps3_sys_manager_register_ops copies ops. */ 726 727 ps3_sys_manager_register_ops(&ops); 728 729 result = ps3_sys_manager_send_attr(dev, PS3_SM_ATTR_ALL); 730 BUG_ON(result); 731 732 result = ps3_vuart_read_async(dev, PS3_SM_RX_MSG_LEN_MIN); 733 BUG_ON(result); 734 735 return result; 736 } 737 738 static int ps3_sys_manager_remove(struct ps3_system_bus_device *dev) 739 { 740 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); 741 return 0; 742 } 743 744 static void ps3_sys_manager_shutdown(struct ps3_system_bus_device *dev) 745 { 746 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); 747 } 748 749 static struct ps3_vuart_port_driver ps3_sys_manager = { 750 .core.match_id = PS3_MATCH_ID_SYSTEM_MANAGER, 751 .core.core.name = "ps3_sys_manager", 752 .probe = ps3_sys_manager_probe, 753 .remove = ps3_sys_manager_remove, 754 .shutdown = ps3_sys_manager_shutdown, 755 .work = ps3_sys_manager_work, 756 }; 757 758 static int __init ps3_sys_manager_init(void) 759 { 760 if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) 761 return -ENODEV; 762 763 return ps3_vuart_port_driver_register(&ps3_sys_manager); 764 } 765 766 module_init(ps3_sys_manager_init); 767 /* Module remove not supported. */ 768 769 MODULE_AUTHOR("Sony Corporation"); 770 MODULE_LICENSE("GPL v2"); 771 MODULE_DESCRIPTION("PS3 System Manager"); 772 MODULE_ALIAS(PS3_MODULE_ALIAS_SYSTEM_MANAGER); 773