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fde5efd0 GL |
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> | |
ef596c69 GU |
25 | |
26 | #include <asm/firmware.h> | |
fde5efd0 | 27 | #include <asm/ps3.h> |
ef596c69 | 28 | |
fde5efd0 GL |
29 | #include "vuart.h" |
30 | ||
31 | MODULE_AUTHOR("Sony Corporation"); | |
32 | MODULE_LICENSE("GPL v2"); | |
33 | MODULE_DESCRIPTION("PS3 System Manager"); | |
34 | ||
35 | /** | |
36 | * ps3_sys_manager - PS3 system manager driver. | |
37 | * | |
38 | * The system manager provides an asyncronous 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 | */ | |
56 | ||
57 | struct ps3_sys_manager_header { | |
58 | /* version 1 */ | |
59 | u8 version; | |
60 | u8 size; | |
61 | u16 reserved_1; | |
62 | u32 payload_size; | |
63 | u16 service_id; | |
64 | u16 reserved_2[3]; | |
65 | }; | |
66 | ||
67 | /** | |
68 | * @PS3_SM_RX_MSG_LEN - System manager received message length. | |
69 | * | |
70 | * Currently all messages received from the system manager are the same length | |
71 | * (16 bytes header + 16 bytes payload = 32 bytes). This knowlege is used to | |
72 | * simplify the logic. | |
73 | */ | |
74 | ||
75 | enum { | |
76 | PS3_SM_RX_MSG_LEN = 32, | |
77 | }; | |
78 | ||
79 | /** | |
80 | * enum ps3_sys_manager_service_id - Message header service_id. | |
81 | * @PS3_SM_SERVICE_ID_REQUEST: guest --> sys_manager. | |
82 | * @PS3_SM_SERVICE_ID_COMMAND: guest <-- sys_manager. | |
83 | * @PS3_SM_SERVICE_ID_RESPONSE: guest --> sys_manager. | |
84 | * @PS3_SM_SERVICE_ID_SET_ATTR: guest --> sys_manager. | |
85 | * @PS3_SM_SERVICE_ID_EXTERN_EVENT: guest <-- sys_manager. | |
86 | * @PS3_SM_SERVICE_ID_SET_NEXT_OP: guest --> sys_manager. | |
87 | */ | |
88 | ||
89 | enum ps3_sys_manager_service_id { | |
90 | /* version 1 */ | |
91 | PS3_SM_SERVICE_ID_REQUEST = 1, | |
92 | PS3_SM_SERVICE_ID_RESPONSE = 2, | |
93 | PS3_SM_SERVICE_ID_COMMAND = 3, | |
94 | PS3_SM_SERVICE_ID_EXTERN_EVENT = 4, | |
95 | PS3_SM_SERVICE_ID_SET_NEXT_OP = 5, | |
96 | PS3_SM_SERVICE_ID_SET_ATTR = 8, | |
97 | }; | |
98 | ||
99 | /** | |
100 | * enum ps3_sys_manager_attr - Notification attribute (bit position mask). | |
101 | * @PS3_SM_ATTR_POWER: Power button. | |
102 | * @PS3_SM_ATTR_RESET: Reset button, not available on retail console. | |
103 | * @PS3_SM_ATTR_THERMAL: Sytem thermal alert. | |
104 | * @PS3_SM_ATTR_CONTROLLER: Remote controller event. | |
105 | * @PS3_SM_ATTR_ALL: Logical OR of all. | |
106 | * | |
107 | * The guest tells the system manager which events it is interested in receiving | |
108 | * notice of by sending the system manager a logical OR of notification | |
109 | * attributes via the ps3_sys_manager_send_attr() routine. | |
110 | */ | |
111 | ||
112 | enum ps3_sys_manager_attr { | |
113 | /* version 1 */ | |
114 | PS3_SM_ATTR_POWER = 1, | |
115 | PS3_SM_ATTR_RESET = 2, | |
116 | PS3_SM_ATTR_THERMAL = 4, | |
117 | PS3_SM_ATTR_CONTROLLER = 8, /* bogus? */ | |
118 | PS3_SM_ATTR_ALL = 0x0f, | |
119 | }; | |
120 | ||
121 | /** | |
122 | * enum ps3_sys_manager_event - External event type, reported by system manager. | |
123 | * @PS3_SM_EVENT_POWER_PRESSED: payload.value not used. | |
124 | * @PS3_SM_EVENT_POWER_RELEASED: payload.value = time pressed in millisec. | |
125 | * @PS3_SM_EVENT_RESET_PRESSED: payload.value not used. | |
126 | * @PS3_SM_EVENT_RESET_RELEASED: payload.value = time pressed in millisec. | |
127 | * @PS3_SM_EVENT_THERMAL_ALERT: payload.value = thermal zone id. | |
128 | * @PS3_SM_EVENT_THERMAL_CLEARED: payload.value = thermal zone id. | |
129 | */ | |
130 | ||
131 | enum ps3_sys_manager_event { | |
132 | /* version 1 */ | |
133 | PS3_SM_EVENT_POWER_PRESSED = 3, | |
134 | PS3_SM_EVENT_POWER_RELEASED = 4, | |
135 | PS3_SM_EVENT_RESET_PRESSED = 5, | |
136 | PS3_SM_EVENT_RESET_RELEASED = 6, | |
137 | PS3_SM_EVENT_THERMAL_ALERT = 7, | |
138 | PS3_SM_EVENT_THERMAL_CLEARED = 8, | |
139 | /* no info on controller events */ | |
140 | }; | |
141 | ||
142 | /** | |
143 | * enum ps3_sys_manager_next_op - Operation to perform after lpar is destroyed. | |
144 | */ | |
145 | ||
146 | enum ps3_sys_manager_next_op { | |
147 | /* version 3 */ | |
148 | PS3_SM_NEXT_OP_SYS_SHUTDOWN = 1, | |
149 | PS3_SM_NEXT_OP_SYS_REBOOT = 2, | |
150 | PS3_SM_NEXT_OP_LPAR_REBOOT = 0x82, | |
151 | }; | |
152 | ||
153 | /** | |
154 | * enum ps3_sys_manager_wake_source - Next-op wakeup source (bit position mask). | |
155 | * @PS3_SM_WAKE_DEFAULT: Disk insert, power button, eject button, IR | |
156 | * controller, and bluetooth controller. | |
157 | * @PS3_SM_WAKE_RTC: | |
158 | * @PS3_SM_WAKE_RTC_ERROR: | |
159 | * @PS3_SM_WAKE_P_O_R: Power on reset. | |
160 | * | |
161 | * Additional wakeup sources when specifying PS3_SM_NEXT_OP_SYS_SHUTDOWN. | |
162 | * System will always wake from the PS3_SM_WAKE_DEFAULT sources. | |
163 | */ | |
164 | ||
165 | enum ps3_sys_manager_wake_source { | |
166 | /* version 3 */ | |
167 | PS3_SM_WAKE_DEFAULT = 0, | |
168 | PS3_SM_WAKE_RTC = 0x00000040, | |
169 | PS3_SM_WAKE_RTC_ERROR = 0x00000080, | |
170 | PS3_SM_WAKE_P_O_R = 0x10000000, | |
171 | }; | |
172 | ||
173 | /** | |
174 | * enum ps3_sys_manager_cmd - Command from system manager to guest. | |
175 | * | |
176 | * The guest completes the actions needed, then acks or naks the command via | |
177 | * ps3_sys_manager_send_response(). In the case of @PS3_SM_CMD_SHUTDOWN, | |
178 | * the guest must be fully prepared for a system poweroff prior to acking the | |
179 | * command. | |
180 | */ | |
181 | ||
182 | enum ps3_sys_manager_cmd { | |
183 | /* version 1 */ | |
184 | PS3_SM_CMD_SHUTDOWN = 1, /* shutdown guest OS */ | |
185 | }; | |
186 | ||
187 | /** | |
188 | * ps3_sys_manager_write - Helper to write a two part message to the vuart. | |
189 | * | |
190 | */ | |
191 | ||
192 | static int ps3_sys_manager_write(struct ps3_vuart_port_device *dev, | |
193 | const struct ps3_sys_manager_header *header, const void *payload) | |
194 | { | |
195 | int result; | |
196 | ||
197 | BUG_ON(header->version != 1); | |
198 | BUG_ON(header->size != 16); | |
199 | BUG_ON(header->payload_size != 8 && header->payload_size != 16); | |
200 | BUG_ON(header->service_id > 8); | |
201 | ||
202 | result = ps3_vuart_write(dev, header, | |
203 | sizeof(struct ps3_sys_manager_header)); | |
204 | ||
205 | if (!result) | |
206 | result = ps3_vuart_write(dev, payload, header->payload_size); | |
207 | ||
208 | return result; | |
209 | } | |
210 | ||
211 | /** | |
212 | * ps3_sys_manager_send_attr - Send a 'set attribute' to the system manager. | |
213 | * | |
214 | */ | |
215 | ||
216 | static int ps3_sys_manager_send_attr(struct ps3_vuart_port_device *dev, | |
217 | enum ps3_sys_manager_attr attr) | |
218 | { | |
219 | static const struct ps3_sys_manager_header header = { | |
220 | .version = 1, | |
221 | .size = 16, | |
222 | .payload_size = 16, | |
223 | .service_id = PS3_SM_SERVICE_ID_SET_ATTR, | |
224 | }; | |
225 | struct { | |
226 | u8 version; | |
227 | u8 reserved_1[3]; | |
228 | u32 attribute; | |
229 | } payload; | |
230 | ||
231 | BUILD_BUG_ON(sizeof(payload) != 8); | |
232 | ||
233 | dev_dbg(&dev->core, "%s:%d: %xh\n", __func__, __LINE__, attr); | |
234 | ||
235 | memset(&payload, 0, sizeof(payload)); | |
236 | payload.version = 1; | |
237 | payload.attribute = attr; | |
238 | ||
239 | return ps3_sys_manager_write(dev, &header, &payload); | |
240 | } | |
241 | ||
242 | /** | |
243 | * ps3_sys_manager_send_next_op - Send a 'set next op' to the system manager. | |
244 | * | |
245 | * Tell the system manager what to do after this lpar is destroyed. | |
246 | */ | |
247 | ||
248 | static int ps3_sys_manager_send_next_op(struct ps3_vuart_port_device *dev, | |
249 | enum ps3_sys_manager_next_op op, | |
250 | enum ps3_sys_manager_wake_source wake_source) | |
251 | { | |
252 | static const struct ps3_sys_manager_header header = { | |
253 | .version = 1, | |
254 | .size = 16, | |
255 | .payload_size = 16, | |
256 | .service_id = PS3_SM_SERVICE_ID_SET_NEXT_OP, | |
257 | }; | |
258 | struct { | |
259 | u8 version; | |
260 | u8 type; | |
261 | u8 gos_id; | |
262 | u8 reserved_1; | |
263 | u32 wake_source; | |
264 | u8 reserved_2[8]; | |
265 | } payload; | |
266 | ||
267 | BUILD_BUG_ON(sizeof(payload) != 16); | |
268 | ||
269 | dev_dbg(&dev->core, "%s:%d: (%xh)\n", __func__, __LINE__, op); | |
270 | ||
271 | memset(&payload, 0, sizeof(payload)); | |
272 | payload.version = 3; | |
273 | payload.type = op; | |
274 | payload.gos_id = 3; /* other os */ | |
275 | payload.wake_source = wake_source; | |
276 | ||
277 | return ps3_sys_manager_write(dev, &header, &payload); | |
278 | } | |
279 | ||
280 | /** | |
281 | * ps3_sys_manager_send_request_shutdown - Send 'request' to the system manager. | |
282 | * | |
283 | * The guest sends this message to request an operation or action of the system | |
284 | * manager. The reply is a command message from the system manager. In the | |
285 | * command handler the guest performs the requested operation. The result of | |
286 | * the command is then communicated back to the system manager with a response | |
287 | * message. | |
288 | * | |
289 | * Currently, the only supported request it the 'shutdown self' request. | |
290 | */ | |
291 | ||
292 | static int ps3_sys_manager_send_request_shutdown(struct ps3_vuart_port_device *dev) | |
293 | { | |
294 | static const struct ps3_sys_manager_header header = { | |
295 | .version = 1, | |
296 | .size = 16, | |
297 | .payload_size = 16, | |
298 | .service_id = PS3_SM_SERVICE_ID_REQUEST, | |
299 | }; | |
300 | struct { | |
301 | u8 version; | |
302 | u8 type; | |
303 | u8 gos_id; | |
304 | u8 reserved_1[13]; | |
305 | } static const payload = { | |
306 | .version = 1, | |
307 | .type = 1, /* shutdown */ | |
308 | .gos_id = 0, /* self */ | |
309 | }; | |
310 | ||
311 | BUILD_BUG_ON(sizeof(payload) != 16); | |
312 | ||
313 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
314 | ||
315 | return ps3_sys_manager_write(dev, &header, &payload); | |
316 | } | |
317 | ||
318 | /** | |
319 | * ps3_sys_manager_send_response - Send a 'response' to the system manager. | |
320 | * @status: zero = success, others fail. | |
321 | * | |
322 | * The guest sends this message to the system manager to acnowledge success or | |
323 | * failure of a command sent by the system manager. | |
324 | */ | |
325 | ||
326 | static int ps3_sys_manager_send_response(struct ps3_vuart_port_device *dev, | |
327 | u64 status) | |
328 | { | |
329 | static const struct ps3_sys_manager_header header = { | |
330 | .version = 1, | |
331 | .size = 16, | |
332 | .payload_size = 16, | |
333 | .service_id = PS3_SM_SERVICE_ID_RESPONSE, | |
334 | }; | |
335 | struct { | |
336 | u8 version; | |
337 | u8 reserved_1[3]; | |
338 | u8 status; | |
339 | u8 reserved_2[11]; | |
340 | } payload; | |
341 | ||
342 | BUILD_BUG_ON(sizeof(payload) != 16); | |
343 | ||
344 | dev_dbg(&dev->core, "%s:%d: (%s)\n", __func__, __LINE__, | |
345 | (status ? "nak" : "ack")); | |
346 | ||
347 | memset(&payload, 0, sizeof(payload)); | |
348 | payload.version = 1; | |
349 | payload.status = status; | |
350 | ||
351 | return ps3_sys_manager_write(dev, &header, &payload); | |
352 | } | |
353 | ||
354 | /** | |
355 | * ps3_sys_manager_handle_event - Second stage event msg handler. | |
356 | * | |
357 | */ | |
358 | ||
359 | static int ps3_sys_manager_handle_event(struct ps3_vuart_port_device *dev) | |
360 | { | |
361 | int result; | |
362 | struct { | |
363 | u8 version; | |
364 | u8 type; | |
365 | u8 reserved_1[2]; | |
366 | u32 value; | |
367 | u8 reserved_2[8]; | |
368 | } event; | |
369 | ||
370 | BUILD_BUG_ON(sizeof(event) != 16); | |
371 | ||
372 | result = ps3_vuart_read(dev, &event, sizeof(event)); | |
373 | BUG_ON(result); | |
374 | ||
375 | if (event.version != 1) { | |
376 | dev_dbg(&dev->core, "%s:%d: unsupported event version (%u)\n", | |
377 | __func__, __LINE__, event.version); | |
378 | return -EIO; | |
379 | } | |
380 | ||
381 | switch (event.type) { | |
382 | case PS3_SM_EVENT_POWER_PRESSED: | |
383 | dev_dbg(&dev->core, "%s:%d: POWER_PRESSED\n", | |
384 | __func__, __LINE__); | |
385 | break; | |
386 | case PS3_SM_EVENT_POWER_RELEASED: | |
387 | dev_dbg(&dev->core, "%s:%d: POWER_RELEASED (%u ms)\n", | |
388 | __func__, __LINE__, event.value); | |
389 | kill_cad_pid(SIGINT, 1); | |
390 | break; | |
391 | case PS3_SM_EVENT_THERMAL_ALERT: | |
392 | dev_dbg(&dev->core, "%s:%d: THERMAL_ALERT (zone %u)\n", | |
393 | __func__, __LINE__, event.value); | |
394 | printk(KERN_INFO "PS3 Thermal Alert Zone %u\n", event.value); | |
395 | break; | |
396 | case PS3_SM_EVENT_THERMAL_CLEARED: | |
397 | dev_dbg(&dev->core, "%s:%d: THERMAL_CLEARED (zone %u)\n", | |
398 | __func__, __LINE__, event.value); | |
399 | break; | |
400 | default: | |
401 | dev_dbg(&dev->core, "%s:%d: unknown event (%u)\n", | |
402 | __func__, __LINE__, event.type); | |
403 | return -EIO; | |
404 | } | |
405 | ||
406 | return 0; | |
407 | } | |
408 | /** | |
409 | * ps3_sys_manager_handle_cmd - Second stage command msg handler. | |
410 | * | |
411 | * The system manager sends this in reply to a 'request' message from the guest. | |
412 | */ | |
413 | ||
414 | static int ps3_sys_manager_handle_cmd(struct ps3_vuart_port_device *dev) | |
415 | { | |
416 | int result; | |
417 | struct { | |
418 | u8 version; | |
419 | u8 type; | |
420 | u8 reserved_1[14]; | |
421 | } cmd; | |
422 | ||
423 | BUILD_BUG_ON(sizeof(cmd) != 16); | |
424 | ||
425 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
426 | ||
427 | result = ps3_vuart_read(dev, &cmd, sizeof(cmd)); | |
428 | ||
429 | if(result) | |
430 | return result; | |
431 | ||
432 | if (cmd.version != 1) { | |
433 | dev_dbg(&dev->core, "%s:%d: unsupported cmd version (%u)\n", | |
434 | __func__, __LINE__, cmd.version); | |
435 | return -EIO; | |
436 | } | |
437 | ||
438 | if (cmd.type != PS3_SM_CMD_SHUTDOWN) { | |
439 | dev_dbg(&dev->core, "%s:%d: unknown cmd (%u)\n", | |
440 | __func__, __LINE__, cmd.type); | |
441 | return -EIO; | |
442 | } | |
443 | ||
444 | ps3_sys_manager_send_response(dev, 0); | |
445 | return 0; | |
446 | } | |
447 | ||
448 | /** | |
449 | * ps3_sys_manager_handle_msg - First stage msg handler. | |
450 | * | |
451 | */ | |
452 | ||
453 | static int ps3_sys_manager_handle_msg(struct ps3_vuart_port_device *dev) | |
454 | { | |
455 | int result; | |
456 | struct ps3_sys_manager_header header; | |
457 | ||
458 | result = ps3_vuart_read(dev, &header, | |
459 | sizeof(struct ps3_sys_manager_header)); | |
460 | ||
461 | if(result) | |
462 | return result; | |
463 | ||
464 | if (header.version != 1) { | |
465 | dev_dbg(&dev->core, "%s:%d: unsupported header version (%u)\n", | |
466 | __func__, __LINE__, header.version); | |
467 | goto fail_header; | |
468 | } | |
469 | ||
470 | BUILD_BUG_ON(sizeof(header) != 16); | |
471 | BUG_ON(header.size != 16); | |
472 | BUG_ON(header.payload_size != 16); | |
473 | ||
474 | switch (header.service_id) { | |
475 | case PS3_SM_SERVICE_ID_EXTERN_EVENT: | |
476 | dev_dbg(&dev->core, "%s:%d: EVENT\n", __func__, __LINE__); | |
477 | return ps3_sys_manager_handle_event(dev); | |
478 | case PS3_SM_SERVICE_ID_COMMAND: | |
479 | dev_dbg(&dev->core, "%s:%d: COMMAND\n", __func__, __LINE__); | |
480 | return ps3_sys_manager_handle_cmd(dev); | |
481 | default: | |
482 | dev_dbg(&dev->core, "%s:%d: unknown service_id (%u)\n", | |
483 | __func__, __LINE__, header.service_id); | |
484 | break; | |
485 | } | |
486 | goto fail_id; | |
487 | ||
488 | fail_header: | |
489 | ps3_vuart_clear_rx_bytes(dev, 0); | |
490 | return -EIO; | |
491 | fail_id: | |
492 | ps3_vuart_clear_rx_bytes(dev, header.payload_size); | |
493 | return -EIO; | |
494 | } | |
495 | ||
496 | /** | |
497 | * ps3_sys_manager_work - Asyncronous read handler. | |
498 | * | |
499 | * Signaled when a complete message arrives at the vuart port. | |
500 | */ | |
501 | ||
502 | static void ps3_sys_manager_work(struct work_struct *work) | |
503 | { | |
504 | struct ps3_vuart_port_device *dev = ps3_vuart_work_to_port_device(work); | |
505 | ||
506 | ps3_sys_manager_handle_msg(dev); | |
507 | ps3_vuart_read_async(dev, ps3_sys_manager_work, PS3_SM_RX_MSG_LEN); | |
508 | } | |
509 | ||
510 | struct { | |
511 | struct ps3_vuart_port_device *dev; | |
512 | } static drv_priv; | |
513 | ||
514 | /** | |
515 | * ps3_sys_manager_restart - The final platform machine_restart routine. | |
516 | * | |
517 | * This routine never returns. The routine disables asyncronous vuart reads | |
518 | * then spins calling ps3_sys_manager_handle_msg() to receive and acknowledge | |
519 | * the shutdown command sent from the system manager. Soon after the | |
520 | * acknowledgement is sent the lpar is destroyed by the HV. This routine | |
521 | * should only be called from ps3_restart(). | |
522 | */ | |
523 | ||
524 | void ps3_sys_manager_restart(void) | |
525 | { | |
526 | struct ps3_vuart_port_device *dev = drv_priv.dev; | |
527 | ||
528 | BUG_ON(!drv_priv.dev); | |
529 | ||
530 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
531 | ||
532 | ps3_vuart_cancel_async(dev); | |
533 | ||
534 | ps3_sys_manager_send_attr(dev, 0); | |
535 | ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_LPAR_REBOOT, | |
536 | PS3_SM_WAKE_DEFAULT); | |
537 | ps3_sys_manager_send_request_shutdown(dev); | |
538 | ||
539 | printk(KERN_EMERG "System Halted, OK to turn off power\n"); | |
540 | ||
541 | while(1) | |
542 | ps3_sys_manager_handle_msg(dev); | |
543 | } | |
544 | ||
545 | /** | |
546 | * ps3_sys_manager_power_off - The final platform machine_power_off routine. | |
547 | * | |
548 | * This routine never returns. The routine disables asyncronous vuart reads | |
549 | * then spins calling ps3_sys_manager_handle_msg() to receive and acknowledge | |
550 | * the shutdown command sent from the system manager. Soon after the | |
551 | * acknowledgement is sent the lpar is destroyed by the HV. This routine | |
552 | * should only be called from ps3_power_off(). | |
553 | */ | |
554 | ||
555 | void ps3_sys_manager_power_off(void) | |
556 | { | |
557 | struct ps3_vuart_port_device *dev = drv_priv.dev; | |
558 | ||
559 | BUG_ON(!drv_priv.dev); | |
560 | ||
561 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
562 | ||
563 | ps3_vuart_cancel_async(dev); | |
564 | ||
565 | ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_SHUTDOWN, | |
566 | PS3_SM_WAKE_DEFAULT); | |
567 | ps3_sys_manager_send_request_shutdown(dev); | |
568 | ||
569 | printk(KERN_EMERG "System Halted, OK to turn off power\n"); | |
570 | ||
571 | while(1) | |
572 | ps3_sys_manager_handle_msg(dev); | |
573 | } | |
574 | ||
575 | static int ps3_sys_manager_probe(struct ps3_vuart_port_device *dev) | |
576 | { | |
577 | int result; | |
578 | ||
579 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
580 | ||
581 | BUG_ON(drv_priv.dev); | |
582 | drv_priv.dev = dev; | |
583 | ||
584 | result = ps3_sys_manager_send_attr(dev, PS3_SM_ATTR_ALL); | |
585 | BUG_ON(result); | |
586 | ||
587 | result = ps3_vuart_read_async(dev, ps3_sys_manager_work, | |
588 | PS3_SM_RX_MSG_LEN); | |
589 | BUG_ON(result); | |
590 | ||
591 | return result; | |
592 | } | |
593 | ||
594 | static struct ps3_vuart_port_driver ps3_sys_manager = { | |
595 | .match_id = PS3_MATCH_ID_SYSTEM_MANAGER, | |
596 | .core = { | |
597 | .name = "ps3_sys_manager", | |
598 | }, | |
599 | .probe = ps3_sys_manager_probe, | |
600 | }; | |
601 | ||
602 | static int __init ps3_sys_manager_init(void) | |
603 | { | |
ef596c69 GU |
604 | if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) |
605 | return -ENODEV; | |
606 | ||
fde5efd0 GL |
607 | return ps3_vuart_port_driver_register(&ps3_sys_manager); |
608 | } | |
609 | ||
610 | module_init(ps3_sys_manager_init); |