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authorGeert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>2007-11-28 19:21:11 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-11-29 12:24:51 -0500
commit248285501ea251379dd449316bf5af78362ae638 (patch)
treeee2fbe2125f9a5bb596e1337b64ee3b7a6cbe6ad /drivers/ps3/ps3-sys-manager.c
parent65f97a56944b797f5df714d677b541cca0829669 (diff)
ps3: prefix all ps3-specific kernel modules with `ps3-'
- vuart.ko -> ps3-vuart.ko - sys-manager.ko -> ps3-sys-manager.ko Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/ps3/ps3-sys-manager.c')
-rw-r--r--drivers/ps3/ps3-sys-manager.c702
1 files changed, 702 insertions, 0 deletions
diff --git a/drivers/ps3/ps3-sys-manager.c b/drivers/ps3/ps3-sys-manager.c
new file mode 100644
index 000000000000..8461b08ab9fb
--- /dev/null
+++ b/drivers/ps3/ps3-sys-manager.c
@@ -0,0 +1,702 @@
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/ps3.h>
28
29#include "vuart.h"
30
31MODULE_AUTHOR("Sony Corporation");
32MODULE_LICENSE("GPL v2");
33MODULE_DESCRIPTION("PS3 System Manager");
34
35/**
36 * ps3_sys_manager - PS3 system manager driver.
37 *
38 * The system manager provides an asynchronous system event notification
39 * mechanism for reporting events like thermal alert and button presses to
40 * guests. It also provides support to control system shutdown and startup.
41 *
42 * The actual system manager is implemented as an application running in the
43 * system policy module in lpar_1. Guests communicate with the system manager
44 * through port 2 of the vuart using a simple packet message protocol.
45 * Messages are comprised of a fixed field header followed by a message
46 * specific payload.
47 */
48
49/**
50 * struct ps3_sys_manager_header - System manager message header.
51 * @version: Header version, currently 1.
52 * @size: Header size in bytes, curently 16.
53 * @payload_size: Message payload size in bytes.
54 * @service_id: Message type, one of enum ps3_sys_manager_service_id.
55 * @request_tag: Unique number to identify reply.
56 */
57
58struct ps3_sys_manager_header {
59 /* version 1 */
60 u8 version;
61 u8 size;
62 u16 reserved_1;
63 u32 payload_size;
64 u16 service_id;
65 u16 reserved_2;
66 u32 request_tag;
67};
68
69#define dump_sm_header(_h) _dump_sm_header(_h, __func__, __LINE__)
70static void __maybe_unused _dump_sm_header(
71 const struct ps3_sys_manager_header *h, const char *func, int line)
72{
73 pr_debug("%s:%d: version: %xh\n", func, line, h->version);
74 pr_debug("%s:%d: size: %xh\n", func, line, h->size);
75 pr_debug("%s:%d: payload_size: %xh\n", func, line, h->payload_size);
76 pr_debug("%s:%d: service_id: %xh\n", func, line, h->service_id);
77 pr_debug("%s:%d: request_tag: %xh\n", func, line, h->request_tag);
78}
79
80/**
81 * @PS3_SM_RX_MSG_LEN_MIN - Shortest received message length.
82 * @PS3_SM_RX_MSG_LEN_MAX - Longest received message length.
83 *
84 * Currently all messages received from the system manager are either
85 * (16 bytes header + 8 bytes payload = 24 bytes) or (16 bytes header
86 * + 16 bytes payload = 32 bytes). This knowlege is used to simplify
87 * the logic.
88 */
89
90enum {
91 PS3_SM_RX_MSG_LEN_MIN = 24,
92 PS3_SM_RX_MSG_LEN_MAX = 32,
93};
94
95/**
96 * enum ps3_sys_manager_service_id - Message header service_id.
97 * @PS3_SM_SERVICE_ID_REQUEST: guest --> sys_manager.
98 * @PS3_SM_SERVICE_ID_REQUEST_ERROR: guest <-- sys_manager.
99 * @PS3_SM_SERVICE_ID_COMMAND: guest <-- sys_manager.
100 * @PS3_SM_SERVICE_ID_RESPONSE: guest --> sys_manager.
101 * @PS3_SM_SERVICE_ID_SET_ATTR: guest --> sys_manager.
102 * @PS3_SM_SERVICE_ID_EXTERN_EVENT: guest <-- sys_manager.
103 * @PS3_SM_SERVICE_ID_SET_NEXT_OP: guest --> sys_manager.
104 *
105 * PS3_SM_SERVICE_ID_REQUEST_ERROR is returned for invalid data values in a
106 * a PS3_SM_SERVICE_ID_REQUEST message. It also seems to be returned when
107 * a REQUEST message is sent at the wrong time.
108 */
109
110enum ps3_sys_manager_service_id {
111 /* version 1 */
112 PS3_SM_SERVICE_ID_REQUEST = 1,
113 PS3_SM_SERVICE_ID_RESPONSE = 2,
114 PS3_SM_SERVICE_ID_COMMAND = 3,
115 PS3_SM_SERVICE_ID_EXTERN_EVENT = 4,
116 PS3_SM_SERVICE_ID_SET_NEXT_OP = 5,
117 PS3_SM_SERVICE_ID_REQUEST_ERROR = 6,
118 PS3_SM_SERVICE_ID_SET_ATTR = 8,
119};
120
121/**
122 * enum ps3_sys_manager_attr - Notification attribute (bit position mask).
123 * @PS3_SM_ATTR_POWER: Power button.
124 * @PS3_SM_ATTR_RESET: Reset button, not available on retail console.
125 * @PS3_SM_ATTR_THERMAL: Sytem thermal alert.
126 * @PS3_SM_ATTR_CONTROLLER: Remote controller event.
127 * @PS3_SM_ATTR_ALL: Logical OR of all.
128 *
129 * The guest tells the system manager which events it is interested in receiving
130 * notice of by sending the system manager a logical OR of notification
131 * attributes via the ps3_sys_manager_send_attr() routine.
132 */
133
134enum ps3_sys_manager_attr {
135 /* version 1 */
136 PS3_SM_ATTR_POWER = 1,
137 PS3_SM_ATTR_RESET = 2,
138 PS3_SM_ATTR_THERMAL = 4,
139 PS3_SM_ATTR_CONTROLLER = 8, /* bogus? */
140 PS3_SM_ATTR_ALL = 0x0f,
141};
142
143/**
144 * enum ps3_sys_manager_event - External event type, reported by system manager.
145 * @PS3_SM_EVENT_POWER_PRESSED: payload.value not used.
146 * @PS3_SM_EVENT_POWER_RELEASED: payload.value = time pressed in millisec.
147 * @PS3_SM_EVENT_RESET_PRESSED: payload.value not used.
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
153enum 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_next_op - Operation to perform after lpar is destroyed.
166 */
167
168enum ps3_sys_manager_next_op {
169 /* version 3 */
170 PS3_SM_NEXT_OP_SYS_SHUTDOWN = 1,
171 PS3_SM_NEXT_OP_SYS_REBOOT = 2,
172 PS3_SM_NEXT_OP_LPAR_REBOOT = 0x82,
173};
174
175/**
176 * enum ps3_sys_manager_wake_source - Next-op wakeup source (bit position mask).
177 * @PS3_SM_WAKE_DEFAULT: Disk insert, power button, eject button, IR
178 * controller, and bluetooth controller.
179 * @PS3_SM_WAKE_RTC:
180 * @PS3_SM_WAKE_RTC_ERROR:
181 * @PS3_SM_WAKE_P_O_R: Power on reset.
182 *
183 * Additional wakeup sources when specifying PS3_SM_NEXT_OP_SYS_SHUTDOWN.
184 * System will always wake from the PS3_SM_WAKE_DEFAULT sources.
185 */
186
187enum ps3_sys_manager_wake_source {
188 /* version 3 */
189 PS3_SM_WAKE_DEFAULT = 0,
190 PS3_SM_WAKE_RTC = 0x00000040,
191 PS3_SM_WAKE_RTC_ERROR = 0x00000080,
192 PS3_SM_WAKE_P_O_R = 0x10000000,
193};
194
195/**
196 * enum ps3_sys_manager_cmd - Command from system manager to guest.
197 *
198 * The guest completes the actions needed, then acks or naks the command via
199 * ps3_sys_manager_send_response(). In the case of @PS3_SM_CMD_SHUTDOWN,
200 * the guest must be fully prepared for a system poweroff prior to acking the
201 * command.
202 */
203
204enum ps3_sys_manager_cmd {
205 /* version 1 */
206 PS3_SM_CMD_SHUTDOWN = 1, /* shutdown guest OS */
207};
208
209/**
210 * ps3_sm_force_power_off - Poweroff helper.
211 *
212 * A global variable used to force a poweroff when the power button has
213 * been pressed irrespective of how init handles the ctrl_alt_del signal.
214 *
215 */
216
217static unsigned int ps3_sm_force_power_off;
218
219/**
220 * ps3_sys_manager_write - Helper to write a two part message to the vuart.
221 *
222 */
223
224static int ps3_sys_manager_write(struct ps3_system_bus_device *dev,
225 const struct ps3_sys_manager_header *header, const void *payload)
226{
227 int result;
228
229 BUG_ON(header->version != 1);
230 BUG_ON(header->size != 16);
231 BUG_ON(header->payload_size != 8 && header->payload_size != 16);
232 BUG_ON(header->service_id > 8);
233
234 result = ps3_vuart_write(dev, header,
235 sizeof(struct ps3_sys_manager_header));
236
237 if (!result)
238 result = ps3_vuart_write(dev, payload, header->payload_size);
239
240 return result;
241}
242
243/**
244 * ps3_sys_manager_send_attr - Send a 'set attribute' to the system manager.
245 *
246 */
247
248static int ps3_sys_manager_send_attr(struct ps3_system_bus_device *dev,
249 enum ps3_sys_manager_attr attr)
250{
251 struct ps3_sys_manager_header header;
252 struct {
253 u8 version;
254 u8 reserved_1[3];
255 u32 attribute;
256 } payload;
257
258 BUILD_BUG_ON(sizeof(payload) != 8);
259
260 dev_dbg(&dev->core, "%s:%d: %xh\n", __func__, __LINE__, attr);
261
262 memset(&header, 0, sizeof(header));
263 header.version = 1;
264 header.size = 16;
265 header.payload_size = 16;
266 header.service_id = PS3_SM_SERVICE_ID_SET_ATTR;
267
268 memset(&payload, 0, sizeof(payload));
269 payload.version = 1;
270 payload.attribute = attr;
271
272 return ps3_sys_manager_write(dev, &header, &payload);
273}
274
275/**
276 * ps3_sys_manager_send_next_op - Send a 'set next op' to the system manager.
277 *
278 * Tell the system manager what to do after this lpar is destroyed.
279 */
280
281static int ps3_sys_manager_send_next_op(struct ps3_system_bus_device *dev,
282 enum ps3_sys_manager_next_op op,
283 enum ps3_sys_manager_wake_source wake_source)
284{
285 struct ps3_sys_manager_header header;
286 struct {
287 u8 version;
288 u8 type;
289 u8 gos_id;
290 u8 reserved_1;
291 u32 wake_source;
292 u8 reserved_2[8];
293 } payload;
294
295 BUILD_BUG_ON(sizeof(payload) != 16);
296
297 dev_dbg(&dev->core, "%s:%d: (%xh)\n", __func__, __LINE__, op);
298
299 memset(&header, 0, sizeof(header));
300 header.version = 1;
301 header.size = 16;
302 header.payload_size = 16;
303 header.service_id = PS3_SM_SERVICE_ID_SET_NEXT_OP;
304
305 memset(&payload, 0, sizeof(payload));
306 payload.version = 3;
307 payload.type = op;
308 payload.gos_id = 3; /* other os */
309 payload.wake_source = wake_source;
310
311 return ps3_sys_manager_write(dev, &header, &payload);
312}
313
314/**
315 * ps3_sys_manager_send_request_shutdown - Send 'request' to the system manager.
316 *
317 * The guest sends this message to request an operation or action of the system
318 * manager. The reply is a command message from the system manager. In the
319 * command handler the guest performs the requested operation. The result of
320 * the command is then communicated back to the system manager with a response
321 * message.
322 *
323 * Currently, the only supported request is the 'shutdown self' request.
324 */
325
326static int ps3_sys_manager_send_request_shutdown(
327 struct ps3_system_bus_device *dev)
328{
329 struct ps3_sys_manager_header header;
330 struct {
331 u8 version;
332 u8 type;
333 u8 gos_id;
334 u8 reserved_1[13];
335 } payload;
336
337 BUILD_BUG_ON(sizeof(payload) != 16);
338
339 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);
340
341 memset(&header, 0, sizeof(header));
342 header.version = 1;
343 header.size = 16;
344 header.payload_size = 16;
345 header.service_id = PS3_SM_SERVICE_ID_REQUEST;
346
347 memset(&payload, 0, sizeof(payload));
348 payload.version = 1;
349 payload.type = 1; /* shutdown */
350 payload.gos_id = 0; /* self */
351
352 return ps3_sys_manager_write(dev, &header, &payload);
353}
354
355/**
356 * ps3_sys_manager_send_response - Send a 'response' to the system manager.
357 * @status: zero = success, others fail.
358 *
359 * The guest sends this message to the system manager to acnowledge success or
360 * failure of a command sent by the system manager.
361 */
362
363static int ps3_sys_manager_send_response(struct ps3_system_bus_device *dev,
364 u64 status)
365{
366 struct ps3_sys_manager_header header;
367 struct {
368 u8 version;
369 u8 reserved_1[3];
370 u8 status;
371 u8 reserved_2[11];
372 } payload;
373
374 BUILD_BUG_ON(sizeof(payload) != 16);
375
376 dev_dbg(&dev->core, "%s:%d: (%s)\n", __func__, __LINE__,
377 (status ? "nak" : "ack"));
378
379 memset(&header, 0, sizeof(header));
380 header.version = 1;
381 header.size = 16;
382 header.payload_size = 16;
383 header.service_id = PS3_SM_SERVICE_ID_RESPONSE;
384
385 memset(&payload, 0, sizeof(payload));
386 payload.version = 1;
387 payload.status = status;
388
389 return ps3_sys_manager_write(dev, &header, &payload);
390}
391
392/**
393 * ps3_sys_manager_handle_event - Second stage event msg handler.
394 *
395 */
396
397static int ps3_sys_manager_handle_event(struct ps3_system_bus_device *dev)
398{
399 int result;
400 struct {
401 u8 version;
402 u8 type;
403 u8 reserved_1[2];
404 u32 value;
405 u8 reserved_2[8];
406 } event;
407
408 BUILD_BUG_ON(sizeof(event) != 16);
409
410 result = ps3_vuart_read(dev, &event, sizeof(event));
411 BUG_ON(result && "need to retry here");
412
413 if (event.version != 1) {
414 dev_dbg(&dev->core, "%s:%d: unsupported event version (%u)\n",
415 __func__, __LINE__, event.version);
416 return -EIO;
417 }
418
419 switch (event.type) {
420 case PS3_SM_EVENT_POWER_PRESSED:
421 dev_dbg(&dev->core, "%s:%d: POWER_PRESSED\n",
422 __func__, __LINE__);
423 ps3_sm_force_power_off = 1;
424 /*
425 * A memory barrier is use here to sync memory since
426 * ps3_sys_manager_final_restart() could be called on
427 * another cpu.
428 */
429 wmb();
430 kill_cad_pid(SIGINT, 1); /* ctrl_alt_del */
431 break;
432 case PS3_SM_EVENT_POWER_RELEASED:
433 dev_dbg(&dev->core, "%s:%d: POWER_RELEASED (%u ms)\n",
434 __func__, __LINE__, event.value);
435 break;
436 case PS3_SM_EVENT_RESET_PRESSED:
437 dev_dbg(&dev->core, "%s:%d: RESET_PRESSED\n",
438 __func__, __LINE__);
439 ps3_sm_force_power_off = 0;
440 /*
441 * A memory barrier is use here to sync memory since
442 * ps3_sys_manager_final_restart() could be called on
443 * another cpu.
444 */
445 wmb();
446 kill_cad_pid(SIGINT, 1); /* ctrl_alt_del */
447 break;
448 case PS3_SM_EVENT_RESET_RELEASED:
449 dev_dbg(&dev->core, "%s:%d: RESET_RELEASED (%u ms)\n",
450 __func__, __LINE__, event.value);
451 break;
452 case PS3_SM_EVENT_THERMAL_ALERT:
453 dev_dbg(&dev->core, "%s:%d: THERMAL_ALERT (zone %u)\n",
454 __func__, __LINE__, event.value);
455 printk(KERN_INFO "PS3 Thermal Alert Zone %u\n", event.value);
456 break;
457 case PS3_SM_EVENT_THERMAL_CLEARED:
458 dev_dbg(&dev->core, "%s:%d: THERMAL_CLEARED (zone %u)\n",
459 __func__, __LINE__, event.value);
460 break;
461 default:
462 dev_dbg(&dev->core, "%s:%d: unknown event (%u)\n",
463 __func__, __LINE__, event.type);
464 return -EIO;
465 }
466
467 return 0;
468}
469/**
470 * ps3_sys_manager_handle_cmd - Second stage command msg handler.
471 *
472 * The system manager sends this in reply to a 'request' message from the guest.
473 */
474
475static int ps3_sys_manager_handle_cmd(struct ps3_system_bus_device *dev)
476{
477 int result;
478 struct {
479 u8 version;
480 u8 type;
481 u8 reserved_1[14];
482 } cmd;
483
484 BUILD_BUG_ON(sizeof(cmd) != 16);
485
486 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);
487
488 result = ps3_vuart_read(dev, &cmd, sizeof(cmd));
489 BUG_ON(result && "need to retry here");
490
491 if(result)
492 return result;
493
494 if (cmd.version != 1) {
495 dev_dbg(&dev->core, "%s:%d: unsupported cmd version (%u)\n",
496 __func__, __LINE__, cmd.version);
497 return -EIO;
498 }
499
500 if (cmd.type != PS3_SM_CMD_SHUTDOWN) {
501 dev_dbg(&dev->core, "%s:%d: unknown cmd (%u)\n",
502 __func__, __LINE__, cmd.type);
503 return -EIO;
504 }
505
506 ps3_sys_manager_send_response(dev, 0);
507 return 0;
508}
509
510/**
511 * ps3_sys_manager_handle_msg - First stage msg handler.
512 *
513 * Can be called directly to manually poll vuart and pump message handler.
514 */
515
516static int ps3_sys_manager_handle_msg(struct ps3_system_bus_device *dev)
517{
518 int result;
519 struct ps3_sys_manager_header header;
520
521 result = ps3_vuart_read(dev, &header,
522 sizeof(struct ps3_sys_manager_header));
523
524 if(result)
525 return result;
526
527 if (header.version != 1) {
528 dev_dbg(&dev->core, "%s:%d: unsupported header version (%u)\n",
529 __func__, __LINE__, header.version);
530 dump_sm_header(&header);
531 goto fail_header;
532 }
533
534 BUILD_BUG_ON(sizeof(header) != 16);
535
536 if (header.size != 16 || (header.payload_size != 8
537 && header.payload_size != 16)) {
538 dump_sm_header(&header);
539 BUG();
540 }
541
542 switch (header.service_id) {
543 case PS3_SM_SERVICE_ID_EXTERN_EVENT:
544 dev_dbg(&dev->core, "%s:%d: EVENT\n", __func__, __LINE__);
545 return ps3_sys_manager_handle_event(dev);
546 case PS3_SM_SERVICE_ID_COMMAND:
547 dev_dbg(&dev->core, "%s:%d: COMMAND\n", __func__, __LINE__);
548 return ps3_sys_manager_handle_cmd(dev);
549 case PS3_SM_SERVICE_ID_REQUEST_ERROR:
550 dev_dbg(&dev->core, "%s:%d: REQUEST_ERROR\n", __func__,
551 __LINE__);
552 dump_sm_header(&header);
553 break;
554 default:
555 dev_dbg(&dev->core, "%s:%d: unknown service_id (%u)\n",
556 __func__, __LINE__, header.service_id);
557 break;
558 }
559 goto fail_id;
560
561fail_header:
562 ps3_vuart_clear_rx_bytes(dev, 0);
563 return -EIO;
564fail_id:
565 ps3_vuart_clear_rx_bytes(dev, header.payload_size);
566 return -EIO;
567}
568
569/**
570 * ps3_sys_manager_final_power_off - The final platform machine_power_off routine.
571 *
572 * This routine never returns. The routine disables asynchronous vuart reads
573 * then spins calling ps3_sys_manager_handle_msg() to receive and acknowledge
574 * the shutdown command sent from the system manager. Soon after the
575 * acknowledgement is sent the lpar is destroyed by the HV. This routine
576 * should only be called from ps3_power_off() through
577 * ps3_sys_manager_ops.power_off.
578 */
579
580static void ps3_sys_manager_final_power_off(struct ps3_system_bus_device *dev)
581{
582 BUG_ON(!dev);
583
584 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);
585
586 ps3_vuart_cancel_async(dev);
587
588 ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_SHUTDOWN,
589 PS3_SM_WAKE_DEFAULT);
590 ps3_sys_manager_send_request_shutdown(dev);
591
592 printk(KERN_EMERG "System Halted, OK to turn off power\n");
593
594 while(1)
595 ps3_sys_manager_handle_msg(dev);
596}
597
598/**
599 * ps3_sys_manager_final_restart - The final platform machine_restart routine.
600 *
601 * This routine never returns. The routine disables asynchronous vuart reads
602 * then spins calling ps3_sys_manager_handle_msg() to receive and acknowledge
603 * the shutdown command sent from the system manager. Soon after the
604 * acknowledgement is sent the lpar is destroyed by the HV. This routine
605 * should only be called from ps3_restart() through ps3_sys_manager_ops.restart.
606 */
607
608static void ps3_sys_manager_final_restart(struct ps3_system_bus_device *dev)
609{
610 BUG_ON(!dev);
611
612 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);
613
614 /* Check if we got here via a power button event. */
615
616 if (ps3_sm_force_power_off) {
617 dev_dbg(&dev->core, "%s:%d: forcing poweroff\n",
618 __func__, __LINE__);
619 ps3_sys_manager_final_power_off(dev);
620 }
621
622 ps3_vuart_cancel_async(dev);
623
624 ps3_sys_manager_send_attr(dev, 0);
625 ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_LPAR_REBOOT,
626 PS3_SM_WAKE_DEFAULT);
627 ps3_sys_manager_send_request_shutdown(dev);
628
629 printk(KERN_EMERG "System Halted, OK to turn off power\n");
630
631 while(1)
632 ps3_sys_manager_handle_msg(dev);
633}
634
635/**
636 * ps3_sys_manager_work - Asynchronous read handler.
637 *
638 * Signaled when PS3_SM_RX_MSG_LEN_MIN bytes arrive at the vuart port.
639 */
640
641static void ps3_sys_manager_work(struct ps3_system_bus_device *dev)
642{
643 ps3_sys_manager_handle_msg(dev);
644 ps3_vuart_read_async(dev, PS3_SM_RX_MSG_LEN_MIN);
645}
646
647static int ps3_sys_manager_probe(struct ps3_system_bus_device *dev)
648{
649 int result;
650 struct ps3_sys_manager_ops ops;
651
652 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);
653
654 ops.power_off = ps3_sys_manager_final_power_off;
655 ops.restart = ps3_sys_manager_final_restart;
656 ops.dev = dev;
657
658 /* ps3_sys_manager_register_ops copies ops. */
659
660 ps3_sys_manager_register_ops(&ops);
661
662 result = ps3_sys_manager_send_attr(dev, PS3_SM_ATTR_ALL);
663 BUG_ON(result);
664
665 result = ps3_vuart_read_async(dev, PS3_SM_RX_MSG_LEN_MIN);
666 BUG_ON(result);
667
668 return result;
669}
670
671static int ps3_sys_manager_remove(struct ps3_system_bus_device *dev)
672{
673 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);
674 return 0;
675}
676
677static void ps3_sys_manager_shutdown(struct ps3_system_bus_device *dev)
678{
679 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);
680}
681
682static struct ps3_vuart_port_driver ps3_sys_manager = {
683 .core.match_id = PS3_MATCH_ID_SYSTEM_MANAGER,
684 .core.core.name = "ps3_sys_manager",
685 .probe = ps3_sys_manager_probe,
686 .remove = ps3_sys_manager_remove,
687 .shutdown = ps3_sys_manager_shutdown,
688 .work = ps3_sys_manager_work,
689};
690
691static int __init ps3_sys_manager_init(void)
692{
693 if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
694 return -ENODEV;
695
696 return ps3_vuart_port_driver_register(&ps3_sys_manager);
697}
698
699module_init(ps3_sys_manager_init);
700/* Module remove not supported. */
701
702MODULE_ALIAS(PS3_MODULE_ALIAS_SYSTEM_MANAGER);