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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * PS3 System Manager.4 *5 * Copyright (C) 2007 Sony Computer Entertainment Inc.6 * Copyright 2007 Sony Corp.7 */8 9#include <linux/kernel.h>10#include <linux/module.h>11#include <linux/workqueue.h>12#include <linux/reboot.h>13#include <linux/sched/signal.h>14 15#include <asm/firmware.h>16#include <asm/lv1call.h>17#include <asm/ps3.h>18 19#include "vuart.h"20 21/**22 * ps3_sys_manager - PS3 system manager driver.23 *24 * The system manager provides an asynchronous system event notification25 * mechanism for reporting events like thermal alert and button presses to26 * guests. It also provides support to control system shutdown and startup.27 *28 * The actual system manager is implemented as an application running in the29 * system policy module in lpar_1. Guests communicate with the system manager30 * through port 2 of the vuart using a simple packet message protocol.31 * Messages are comprised of a fixed field header followed by a message32 * specific payload.33 */34 35/**36 * struct ps3_sys_manager_header - System manager message header.37 * @version: Header version, currently 1.38 * @size: Header size in bytes, currently 16.39 * @payload_size: Message payload size in bytes.40 * @service_id: Message type, one of enum ps3_sys_manager_service_id.41 * @request_tag: Unique number to identify reply.42 */43 44struct ps3_sys_manager_header {45 /* version 1 */46 u8 version;47 u8 size;48 u16 reserved_1;49 u32 payload_size;50 u16 service_id;51 u16 reserved_2;52 u32 request_tag;53};54 55#define dump_sm_header(_h) _dump_sm_header(_h, __func__, __LINE__)56static void __maybe_unused _dump_sm_header(57 const struct ps3_sys_manager_header *h, const char *func, int line)58{59 pr_debug("%s:%d: version: %xh\n", func, line, h->version);60 pr_debug("%s:%d: size: %xh\n", func, line, h->size);61 pr_debug("%s:%d: payload_size: %xh\n", func, line, h->payload_size);62 pr_debug("%s:%d: service_id: %xh\n", func, line, h->service_id);63 pr_debug("%s:%d: request_tag: %xh\n", func, line, h->request_tag);64}65 66/**67 * @PS3_SM_RX_MSG_LEN_MIN - Shortest received message length.68 * @PS3_SM_RX_MSG_LEN_MAX - Longest received message length.69 *70 * Currently all messages received from the system manager are either71 * (16 bytes header + 8 bytes payload = 24 bytes) or (16 bytes header72 * + 16 bytes payload = 32 bytes). This knowledge is used to simplify73 * the logic.74 */75 76enum {77 PS3_SM_RX_MSG_LEN_MIN = 24,78 PS3_SM_RX_MSG_LEN_MAX = 32,79};80 81/**82 * enum ps3_sys_manager_service_id - Message header service_id.83 * @PS3_SM_SERVICE_ID_REQUEST: guest --> sys_manager.84 * @PS3_SM_SERVICE_ID_REQUEST_ERROR: guest <-- sys_manager.85 * @PS3_SM_SERVICE_ID_COMMAND: guest <-- sys_manager.86 * @PS3_SM_SERVICE_ID_RESPONSE: guest --> sys_manager.87 * @PS3_SM_SERVICE_ID_SET_ATTR: guest --> sys_manager.88 * @PS3_SM_SERVICE_ID_EXTERN_EVENT: guest <-- sys_manager.89 * @PS3_SM_SERVICE_ID_SET_NEXT_OP: guest --> sys_manager.90 *91 * PS3_SM_SERVICE_ID_REQUEST_ERROR is returned for invalid data values in a92 * a PS3_SM_SERVICE_ID_REQUEST message. It also seems to be returned when93 * a REQUEST message is sent at the wrong time.94 */95 96enum ps3_sys_manager_service_id {97 /* version 1 */98 PS3_SM_SERVICE_ID_REQUEST = 1,99 PS3_SM_SERVICE_ID_RESPONSE = 2,100 PS3_SM_SERVICE_ID_COMMAND = 3,101 PS3_SM_SERVICE_ID_EXTERN_EVENT = 4,102 PS3_SM_SERVICE_ID_SET_NEXT_OP = 5,103 PS3_SM_SERVICE_ID_REQUEST_ERROR = 6,104 PS3_SM_SERVICE_ID_SET_ATTR = 8,105};106 107/**108 * enum ps3_sys_manager_attr - Notification attribute (bit position mask).109 * @PS3_SM_ATTR_POWER: Power button.110 * @PS3_SM_ATTR_RESET: Reset button, not available on retail console.111 * @PS3_SM_ATTR_THERMAL: System thermal alert.112 * @PS3_SM_ATTR_CONTROLLER: Remote controller event.113 * @PS3_SM_ATTR_ALL: Logical OR of all.114 *115 * The guest tells the system manager which events it is interested in receiving116 * notice of by sending the system manager a logical OR of notification117 * attributes via the ps3_sys_manager_send_attr() routine.118 */119 120enum ps3_sys_manager_attr {121 /* version 1 */122 PS3_SM_ATTR_POWER = 1,123 PS3_SM_ATTR_RESET = 2,124 PS3_SM_ATTR_THERMAL = 4,125 PS3_SM_ATTR_CONTROLLER = 8, /* bogus? */126 PS3_SM_ATTR_ALL = 0x0f,127};128 129/**130 * enum ps3_sys_manager_event - External event type, reported by system manager.131 * @PS3_SM_EVENT_POWER_PRESSED: payload.value =132 * enum ps3_sys_manager_button_event.133 * @PS3_SM_EVENT_POWER_RELEASED: payload.value = time pressed in millisec.134 * @PS3_SM_EVENT_RESET_PRESSED: payload.value =135 * enum ps3_sys_manager_button_event.136 * @PS3_SM_EVENT_RESET_RELEASED: payload.value = time pressed in millisec.137 * @PS3_SM_EVENT_THERMAL_ALERT: payload.value = thermal zone id.138 * @PS3_SM_EVENT_THERMAL_CLEARED: payload.value = thermal zone id.139 */140 141enum ps3_sys_manager_event {142 /* version 1 */143 PS3_SM_EVENT_POWER_PRESSED = 3,144 PS3_SM_EVENT_POWER_RELEASED = 4,145 PS3_SM_EVENT_RESET_PRESSED = 5,146 PS3_SM_EVENT_RESET_RELEASED = 6,147 PS3_SM_EVENT_THERMAL_ALERT = 7,148 PS3_SM_EVENT_THERMAL_CLEARED = 8,149 /* no info on controller events */150};151 152/**153 * enum ps3_sys_manager_button_event - Button event payload values.154 * @PS3_SM_BUTTON_EVENT_HARD: Hardware generated event.155 * @PS3_SM_BUTTON_EVENT_SOFT: Software generated event.156 */157 158enum ps3_sys_manager_button_event {159 PS3_SM_BUTTON_EVENT_HARD = 0,160 PS3_SM_BUTTON_EVENT_SOFT = 1,161};162 163/**164 * enum ps3_sys_manager_next_op - Operation to perform after lpar is destroyed.165 */166 167enum ps3_sys_manager_next_op {168 /* version 3 */169 PS3_SM_NEXT_OP_SYS_SHUTDOWN = 1,170 PS3_SM_NEXT_OP_SYS_REBOOT = 2,171 PS3_SM_NEXT_OP_LPAR_REBOOT = 0x82,172};173 174/**175 * enum ps3_sys_manager_wake_source - Next-op wakeup source (bit position mask).176 * @PS3_SM_WAKE_DEFAULT: Disk insert, power button, eject button.177 * @PS3_SM_WAKE_W_O_L: Ether or wireless LAN.178 * @PS3_SM_WAKE_P_O_R: Power on reset.179 *180 * Additional wakeup sources when specifying PS3_SM_NEXT_OP_SYS_SHUTDOWN.181 * The system will always wake from the PS3_SM_WAKE_DEFAULT sources.182 * Sources listed here are the only ones available to guests in the183 * other-os lpar.184 */185 186enum ps3_sys_manager_wake_source {187 /* version 3 */188 PS3_SM_WAKE_DEFAULT = 0,189 PS3_SM_WAKE_W_O_L = 0x00000400,190 PS3_SM_WAKE_P_O_R = 0x80000000,191};192 193/**194 * user_wake_sources - User specified wakeup sources.195 *196 * Logical OR of enum ps3_sys_manager_wake_source types.197 */198 199static u32 user_wake_sources = PS3_SM_WAKE_DEFAULT;200 201/**202 * enum ps3_sys_manager_cmd - Command from system manager to guest.203 *204 * The guest completes the actions needed, then acks or naks the command via205 * ps3_sys_manager_send_response(). In the case of @PS3_SM_CMD_SHUTDOWN,206 * the guest must be fully prepared for a system poweroff prior to acking the207 * command.208 */209 210enum ps3_sys_manager_cmd {211 /* version 1 */212 PS3_SM_CMD_SHUTDOWN = 1, /* shutdown guest OS */213};214 215/**216 * ps3_sm_force_power_off - Poweroff helper.217 *218 * A global variable used to force a poweroff when the power button has219 * been pressed irrespective of how init handles the ctrl_alt_del signal.220 *221 */222 223static unsigned int ps3_sm_force_power_off;224 225/**226 * ps3_sys_manager_write - Helper to write a two part message to the vuart.227 *228 */229 230static int ps3_sys_manager_write(struct ps3_system_bus_device *dev,231 const struct ps3_sys_manager_header *header, const void *payload)232{233 int result;234 235 BUG_ON(header->version != 1);236 BUG_ON(header->size != 16);237 BUG_ON(header->payload_size != 8 && header->payload_size != 16);238 BUG_ON(header->service_id > 8);239 240 result = ps3_vuart_write(dev, header,241 sizeof(struct ps3_sys_manager_header));242 243 if (!result)244 result = ps3_vuart_write(dev, payload, header->payload_size);245 246 return result;247}248 249/**250 * ps3_sys_manager_send_attr - Send a 'set attribute' to the system manager.251 *252 */253 254static int ps3_sys_manager_send_attr(struct ps3_system_bus_device *dev,255 enum ps3_sys_manager_attr attr)256{257 struct ps3_sys_manager_header header;258 struct {259 u8 version;260 u8 reserved_1[3];261 u32 attribute;262 } payload;263 264 BUILD_BUG_ON(sizeof(payload) != 8);265 266 dev_dbg(&dev->core, "%s:%d: %xh\n", __func__, __LINE__, attr);267 268 memset(&header, 0, sizeof(header));269 header.version = 1;270 header.size = 16;271 header.payload_size = 16;272 header.service_id = PS3_SM_SERVICE_ID_SET_ATTR;273 274 memset(&payload, 0, sizeof(payload));275 payload.version = 1;276 payload.attribute = attr;277 278 return ps3_sys_manager_write(dev, &header, &payload);279}280 281/**282 * ps3_sys_manager_send_next_op - Send a 'set next op' to the system manager.283 *284 * Tell the system manager what to do after this lpar is destroyed.285 */286 287static int ps3_sys_manager_send_next_op(struct ps3_system_bus_device *dev,288 enum ps3_sys_manager_next_op op,289 enum ps3_sys_manager_wake_source wake_source)290{291 struct ps3_sys_manager_header header;292 struct {293 u8 version;294 u8 type;295 u8 gos_id;296 u8 reserved_1;297 u32 wake_source;298 u8 reserved_2[8];299 } payload;300 301 BUILD_BUG_ON(sizeof(payload) != 16);302 303 dev_dbg(&dev->core, "%s:%d: (%xh)\n", __func__, __LINE__, op);304 305 memset(&header, 0, sizeof(header));306 header.version = 1;307 header.size = 16;308 header.payload_size = 16;309 header.service_id = PS3_SM_SERVICE_ID_SET_NEXT_OP;310 311 memset(&payload, 0, sizeof(payload));312 payload.version = 3;313 payload.type = op;314 payload.gos_id = 3; /* other os */315 payload.wake_source = wake_source;316 317 return ps3_sys_manager_write(dev, &header, &payload);318}319 320/**321 * ps3_sys_manager_send_request_shutdown - Send 'request' to the system manager.322 *323 * The guest sends this message to request an operation or action of the system324 * manager. The reply is a command message from the system manager. In the325 * command handler the guest performs the requested operation. The result of326 * the command is then communicated back to the system manager with a response327 * message.328 *329 * Currently, the only supported request is the 'shutdown self' request.330 */331 332static int ps3_sys_manager_send_request_shutdown(333 struct ps3_system_bus_device *dev)334{335 struct ps3_sys_manager_header header;336 struct {337 u8 version;338 u8 type;339 u8 gos_id;340 u8 reserved_1[13];341 } payload;342 343 BUILD_BUG_ON(sizeof(payload) != 16);344 345 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);346 347 memset(&header, 0, sizeof(header));348 header.version = 1;349 header.size = 16;350 header.payload_size = 16;351 header.service_id = PS3_SM_SERVICE_ID_REQUEST;352 353 memset(&payload, 0, sizeof(payload));354 payload.version = 1;355 payload.type = 1; /* shutdown */356 payload.gos_id = 0; /* self */357 358 return ps3_sys_manager_write(dev, &header, &payload);359}360 361/**362 * ps3_sys_manager_send_response - Send a 'response' to the system manager.363 * @status: zero = success, others fail.364 *365 * The guest sends this message to the system manager to acnowledge success or366 * failure of a command sent by the system manager.367 */368 369static int ps3_sys_manager_send_response(struct ps3_system_bus_device *dev,370 u64 status)371{372 struct ps3_sys_manager_header header;373 struct {374 u8 version;375 u8 reserved_1[3];376 u8 status;377 u8 reserved_2[11];378 } payload;379 380 BUILD_BUG_ON(sizeof(payload) != 16);381 382 dev_dbg(&dev->core, "%s:%d: (%s)\n", __func__, __LINE__,383 (status ? "nak" : "ack"));384 385 memset(&header, 0, sizeof(header));386 header.version = 1;387 header.size = 16;388 header.payload_size = 16;389 header.service_id = PS3_SM_SERVICE_ID_RESPONSE;390 391 memset(&payload, 0, sizeof(payload));392 payload.version = 1;393 payload.status = status;394 395 return ps3_sys_manager_write(dev, &header, &payload);396}397 398/**399 * ps3_sys_manager_handle_event - Second stage event msg handler.400 *401 */402 403static int ps3_sys_manager_handle_event(struct ps3_system_bus_device *dev)404{405 int result;406 struct {407 u8 version;408 u8 type;409 u8 reserved_1[2];410 u32 value;411 u8 reserved_2[8];412 } event;413 414 BUILD_BUG_ON(sizeof(event) != 16);415 416 result = ps3_vuart_read(dev, &event, sizeof(event));417 BUG_ON(result && "need to retry here");418 419 if (event.version != 1) {420 dev_dbg(&dev->core, "%s:%d: unsupported event version (%u)\n",421 __func__, __LINE__, event.version);422 return -EIO;423 }424 425 switch (event.type) {426 case PS3_SM_EVENT_POWER_PRESSED:427 dev_dbg(&dev->core, "%s:%d: POWER_PRESSED (%s)\n",428 __func__, __LINE__,429 (event.value == PS3_SM_BUTTON_EVENT_SOFT ? "soft"430 : "hard"));431 ps3_sm_force_power_off = 1;432 /*433 * A memory barrier is use here to sync memory since434 * ps3_sys_manager_final_restart() could be called on435 * another cpu.436 */437 wmb();438 kill_cad_pid(SIGINT, 1); /* ctrl_alt_del */439 break;440 case PS3_SM_EVENT_POWER_RELEASED:441 dev_dbg(&dev->core, "%s:%d: POWER_RELEASED (%u ms)\n",442 __func__, __LINE__, event.value);443 break;444 case PS3_SM_EVENT_RESET_PRESSED:445 dev_dbg(&dev->core, "%s:%d: RESET_PRESSED (%s)\n",446 __func__, __LINE__,447 (event.value == PS3_SM_BUTTON_EVENT_SOFT ? "soft"448 : "hard"));449 ps3_sm_force_power_off = 0;450 /*451 * A memory barrier is use here to sync memory since452 * ps3_sys_manager_final_restart() could be called on453 * another cpu.454 */455 wmb();456 kill_cad_pid(SIGINT, 1); /* ctrl_alt_del */457 break;458 case PS3_SM_EVENT_RESET_RELEASED:459 dev_dbg(&dev->core, "%s:%d: RESET_RELEASED (%u ms)\n",460 __func__, __LINE__, event.value);461 break;462 case PS3_SM_EVENT_THERMAL_ALERT:463 dev_dbg(&dev->core, "%s:%d: THERMAL_ALERT (zone %u)\n",464 __func__, __LINE__, event.value);465 pr_info("PS3 Thermal Alert Zone %u\n", event.value);466 break;467 case PS3_SM_EVENT_THERMAL_CLEARED:468 dev_dbg(&dev->core, "%s:%d: THERMAL_CLEARED (zone %u)\n",469 __func__, __LINE__, event.value);470 break;471 default:472 dev_dbg(&dev->core, "%s:%d: unknown event (%u)\n",473 __func__, __LINE__, event.type);474 return -EIO;475 }476 477 return 0;478}479/**480 * ps3_sys_manager_handle_cmd - Second stage command msg handler.481 *482 * The system manager sends this in reply to a 'request' message from the guest.483 */484 485static int ps3_sys_manager_handle_cmd(struct ps3_system_bus_device *dev)486{487 int result;488 struct {489 u8 version;490 u8 type;491 u8 reserved_1[14];492 } cmd;493 494 BUILD_BUG_ON(sizeof(cmd) != 16);495 496 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);497 498 result = ps3_vuart_read(dev, &cmd, sizeof(cmd));499 BUG_ON(result && "need to retry here");500 501 if (result)502 return result;503 504 if (cmd.version != 1) {505 dev_dbg(&dev->core, "%s:%d: unsupported cmd version (%u)\n",506 __func__, __LINE__, cmd.version);507 return -EIO;508 }509 510 if (cmd.type != PS3_SM_CMD_SHUTDOWN) {511 dev_dbg(&dev->core, "%s:%d: unknown cmd (%u)\n",512 __func__, __LINE__, cmd.type);513 return -EIO;514 }515 516 ps3_sys_manager_send_response(dev, 0);517 return 0;518}519 520/**521 * ps3_sys_manager_handle_msg - First stage msg handler.522 *523 * Can be called directly to manually poll vuart and pump message handler.524 */525 526static int ps3_sys_manager_handle_msg(struct ps3_system_bus_device *dev)527{528 int result;529 struct ps3_sys_manager_header header;530 531 result = ps3_vuart_read(dev, &header,532 sizeof(struct ps3_sys_manager_header));533 534 if (result)535 return result;536 537 if (header.version != 1) {538 dev_dbg(&dev->core, "%s:%d: unsupported header version (%u)\n",539 __func__, __LINE__, header.version);540 dump_sm_header(&header);541 goto fail_header;542 }543 544 BUILD_BUG_ON(sizeof(header) != 16);545 546 if (header.size != 16 || (header.payload_size != 8547 && header.payload_size != 16)) {548 dump_sm_header(&header);549 BUG();550 }551 552 switch (header.service_id) {553 case PS3_SM_SERVICE_ID_EXTERN_EVENT:554 dev_dbg(&dev->core, "%s:%d: EVENT\n", __func__, __LINE__);555 return ps3_sys_manager_handle_event(dev);556 case PS3_SM_SERVICE_ID_COMMAND:557 dev_dbg(&dev->core, "%s:%d: COMMAND\n", __func__, __LINE__);558 return ps3_sys_manager_handle_cmd(dev);559 case PS3_SM_SERVICE_ID_REQUEST_ERROR:560 dev_dbg(&dev->core, "%s:%d: REQUEST_ERROR\n", __func__,561 __LINE__);562 dump_sm_header(&header);563 break;564 default:565 dev_dbg(&dev->core, "%s:%d: unknown service_id (%u)\n",566 __func__, __LINE__, header.service_id);567 break;568 }569 goto fail_id;570 571fail_header:572 ps3_vuart_clear_rx_bytes(dev, 0);573 return -EIO;574fail_id:575 ps3_vuart_clear_rx_bytes(dev, header.payload_size);576 return -EIO;577}578 579static void ps3_sys_manager_fin(struct ps3_system_bus_device *dev)580{581 ps3_sys_manager_send_request_shutdown(dev);582 583 pr_emerg("System Halted, OK to turn off power\n");584 585 while (ps3_sys_manager_handle_msg(dev)) {586 /* pause until next DEC interrupt */587 lv1_pause(0);588 }589 590 while (1) {591 /* pause, ignoring DEC interrupt */592 lv1_pause(1);593 }594}595 596/**597 * ps3_sys_manager_final_power_off - The final platform machine_power_off routine.598 *599 * This routine never returns. The routine disables asynchronous vuart reads600 * then spins calling ps3_sys_manager_handle_msg() to receive and acknowledge601 * the shutdown command sent from the system manager. Soon after the602 * acknowledgement is sent the lpar is destroyed by the HV. This routine603 * should only be called from ps3_power_off() through604 * ps3_sys_manager_ops.power_off.605 */606 607static void ps3_sys_manager_final_power_off(struct ps3_system_bus_device *dev)608{609 BUG_ON(!dev);610 611 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);612 613 ps3_vuart_cancel_async(dev);614 615 ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_SHUTDOWN,616 user_wake_sources);617 618 ps3_sys_manager_fin(dev);619}620 621/**622 * ps3_sys_manager_final_restart - The final platform machine_restart routine.623 *624 * This routine never returns. The routine disables asynchronous vuart reads625 * then spins calling ps3_sys_manager_handle_msg() to receive and acknowledge626 * the shutdown command sent from the system manager. Soon after the627 * acknowledgement is sent the lpar is destroyed by the HV. This routine628 * should only be called from ps3_restart() through ps3_sys_manager_ops.restart.629 */630 631static void ps3_sys_manager_final_restart(struct ps3_system_bus_device *dev)632{633 BUG_ON(!dev);634 635 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);636 637 /* Check if we got here via a power button event. */638 639 if (ps3_sm_force_power_off) {640 dev_dbg(&dev->core, "%s:%d: forcing poweroff\n",641 __func__, __LINE__);642 ps3_sys_manager_final_power_off(dev);643 }644 645 ps3_vuart_cancel_async(dev);646 647 ps3_sys_manager_send_attr(dev, 0);648 ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_REBOOT,649 user_wake_sources);650 651 ps3_sys_manager_fin(dev);652}653 654/**655 * ps3_sys_manager_get_wol - Get wake-on-lan setting.656 */657 658int ps3_sys_manager_get_wol(void)659{660 pr_debug("%s:%d\n", __func__, __LINE__);661 662 return (user_wake_sources & PS3_SM_WAKE_W_O_L) != 0;663}664EXPORT_SYMBOL_GPL(ps3_sys_manager_get_wol);665 666/**667 * ps3_sys_manager_set_wol - Set wake-on-lan setting.668 */669 670void ps3_sys_manager_set_wol(int state)671{672 static DEFINE_MUTEX(mutex);673 674 mutex_lock(&mutex);675 676 pr_debug("%s:%d: %d\n", __func__, __LINE__, state);677 678 if (state)679 user_wake_sources |= PS3_SM_WAKE_W_O_L;680 else681 user_wake_sources &= ~PS3_SM_WAKE_W_O_L;682 mutex_unlock(&mutex);683}684EXPORT_SYMBOL_GPL(ps3_sys_manager_set_wol);685 686/**687 * ps3_sys_manager_work - Asynchronous read handler.688 *689 * Signaled when PS3_SM_RX_MSG_LEN_MIN bytes arrive at the vuart port.690 */691 692static void ps3_sys_manager_work(struct ps3_system_bus_device *dev)693{694 ps3_sys_manager_handle_msg(dev);695 ps3_vuart_read_async(dev, PS3_SM_RX_MSG_LEN_MIN);696}697 698static int ps3_sys_manager_probe(struct ps3_system_bus_device *dev)699{700 int result;701 struct ps3_sys_manager_ops ops;702 703 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);704 705 ops.power_off = ps3_sys_manager_final_power_off;706 ops.restart = ps3_sys_manager_final_restart;707 ops.dev = dev;708 709 /* ps3_sys_manager_register_ops copies ops. */710 711 ps3_sys_manager_register_ops(&ops);712 713 result = ps3_sys_manager_send_attr(dev, PS3_SM_ATTR_ALL);714 BUG_ON(result);715 716 result = ps3_vuart_read_async(dev, PS3_SM_RX_MSG_LEN_MIN);717 BUG_ON(result);718 719 return result;720}721 722static int ps3_sys_manager_remove(struct ps3_system_bus_device *dev)723{724 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);725 return 0;726}727 728static void ps3_sys_manager_shutdown(struct ps3_system_bus_device *dev)729{730 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);731}732 733static struct ps3_vuart_port_driver ps3_sys_manager = {734 .core.match_id = PS3_MATCH_ID_SYSTEM_MANAGER,735 .core.core.name = "ps3_sys_manager",736 .probe = ps3_sys_manager_probe,737 .remove = ps3_sys_manager_remove,738 .shutdown = ps3_sys_manager_shutdown,739 .work = ps3_sys_manager_work,740};741 742static int __init ps3_sys_manager_init(void)743{744 if (!firmware_has_feature(FW_FEATURE_PS3_LV1))745 return -ENODEV;746 747 return ps3_vuart_port_driver_register(&ps3_sys_manager);748}749 750module_init(ps3_sys_manager_init);751/* Module remove not supported. */752 753MODULE_AUTHOR("Sony Corporation");754MODULE_LICENSE("GPL v2");755MODULE_DESCRIPTION("PS3 System Manager");756MODULE_ALIAS(PS3_MODULE_ALIAS_SYSTEM_MANAGER);757