Commit | Line | Data |
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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 | ||
fde5efd0 GL |
31 | /** |
32 | * ps3_sys_manager - PS3 system manager driver. | |
33 | * | |
66c63b84 | 34 | * The system manager provides an asynchronous system event notification |
fde5efd0 GL |
35 | * mechanism for reporting events like thermal alert and button presses to |
36 | * guests. It also provides support to control system shutdown and startup. | |
37 | * | |
38 | * The actual system manager is implemented as an application running in the | |
39 | * system policy module in lpar_1. Guests communicate with the system manager | |
40 | * through port 2 of the vuart using a simple packet message protocol. | |
41 | * Messages are comprised of a fixed field header followed by a message | |
42 | * specific payload. | |
43 | */ | |
44 | ||
45 | /** | |
46 | * struct ps3_sys_manager_header - System manager message header. | |
47 | * @version: Header version, currently 1. | |
48 | * @size: Header size in bytes, curently 16. | |
49 | * @payload_size: Message payload size in bytes. | |
50 | * @service_id: Message type, one of enum ps3_sys_manager_service_id. | |
66c63b84 | 51 | * @request_tag: Unique number to identify reply. |
fde5efd0 GL |
52 | */ |
53 | ||
54 | struct ps3_sys_manager_header { | |
55 | /* version 1 */ | |
56 | u8 version; | |
57 | u8 size; | |
58 | u16 reserved_1; | |
59 | u32 payload_size; | |
60 | u16 service_id; | |
66c63b84 GL |
61 | u16 reserved_2; |
62 | u32 request_tag; | |
fde5efd0 GL |
63 | }; |
64 | ||
66c63b84 GL |
65 | #define dump_sm_header(_h) _dump_sm_header(_h, __func__, __LINE__) |
66 | static void __maybe_unused _dump_sm_header( | |
67 | const struct ps3_sys_manager_header *h, const char *func, int line) | |
68 | { | |
69 | pr_debug("%s:%d: version: %xh\n", func, line, h->version); | |
70 | pr_debug("%s:%d: size: %xh\n", func, line, h->size); | |
71 | pr_debug("%s:%d: payload_size: %xh\n", func, line, h->payload_size); | |
72 | pr_debug("%s:%d: service_id: %xh\n", func, line, h->service_id); | |
73 | pr_debug("%s:%d: request_tag: %xh\n", func, line, h->request_tag); | |
74 | } | |
75 | ||
fde5efd0 | 76 | /** |
66c63b84 GL |
77 | * @PS3_SM_RX_MSG_LEN_MIN - Shortest received message length. |
78 | * @PS3_SM_RX_MSG_LEN_MAX - Longest received message length. | |
fde5efd0 | 79 | * |
66c63b84 GL |
80 | * Currently all messages received from the system manager are either |
81 | * (16 bytes header + 8 bytes payload = 24 bytes) or (16 bytes header | |
82 | * + 16 bytes payload = 32 bytes). This knowlege is used to simplify | |
83 | * the logic. | |
fde5efd0 GL |
84 | */ |
85 | ||
86 | enum { | |
66c63b84 GL |
87 | PS3_SM_RX_MSG_LEN_MIN = 24, |
88 | PS3_SM_RX_MSG_LEN_MAX = 32, | |
fde5efd0 GL |
89 | }; |
90 | ||
91 | /** | |
92 | * enum ps3_sys_manager_service_id - Message header service_id. | |
66c63b84 GL |
93 | * @PS3_SM_SERVICE_ID_REQUEST: guest --> sys_manager. |
94 | * @PS3_SM_SERVICE_ID_REQUEST_ERROR: guest <-- sys_manager. | |
95 | * @PS3_SM_SERVICE_ID_COMMAND: guest <-- sys_manager. | |
96 | * @PS3_SM_SERVICE_ID_RESPONSE: guest --> sys_manager. | |
97 | * @PS3_SM_SERVICE_ID_SET_ATTR: guest --> sys_manager. | |
98 | * @PS3_SM_SERVICE_ID_EXTERN_EVENT: guest <-- sys_manager. | |
99 | * @PS3_SM_SERVICE_ID_SET_NEXT_OP: guest --> sys_manager. | |
100 | * | |
101 | * PS3_SM_SERVICE_ID_REQUEST_ERROR is returned for invalid data values in a | |
102 | * a PS3_SM_SERVICE_ID_REQUEST message. It also seems to be returned when | |
103 | * a REQUEST message is sent at the wrong time. | |
fde5efd0 GL |
104 | */ |
105 | ||
106 | enum ps3_sys_manager_service_id { | |
107 | /* version 1 */ | |
108 | PS3_SM_SERVICE_ID_REQUEST = 1, | |
109 | PS3_SM_SERVICE_ID_RESPONSE = 2, | |
110 | PS3_SM_SERVICE_ID_COMMAND = 3, | |
111 | PS3_SM_SERVICE_ID_EXTERN_EVENT = 4, | |
112 | PS3_SM_SERVICE_ID_SET_NEXT_OP = 5, | |
66c63b84 | 113 | PS3_SM_SERVICE_ID_REQUEST_ERROR = 6, |
fde5efd0 GL |
114 | PS3_SM_SERVICE_ID_SET_ATTR = 8, |
115 | }; | |
116 | ||
117 | /** | |
118 | * enum ps3_sys_manager_attr - Notification attribute (bit position mask). | |
119 | * @PS3_SM_ATTR_POWER: Power button. | |
120 | * @PS3_SM_ATTR_RESET: Reset button, not available on retail console. | |
121 | * @PS3_SM_ATTR_THERMAL: Sytem thermal alert. | |
122 | * @PS3_SM_ATTR_CONTROLLER: Remote controller event. | |
123 | * @PS3_SM_ATTR_ALL: Logical OR of all. | |
124 | * | |
125 | * The guest tells the system manager which events it is interested in receiving | |
126 | * notice of by sending the system manager a logical OR of notification | |
127 | * attributes via the ps3_sys_manager_send_attr() routine. | |
128 | */ | |
129 | ||
130 | enum ps3_sys_manager_attr { | |
131 | /* version 1 */ | |
132 | PS3_SM_ATTR_POWER = 1, | |
133 | PS3_SM_ATTR_RESET = 2, | |
134 | PS3_SM_ATTR_THERMAL = 4, | |
135 | PS3_SM_ATTR_CONTROLLER = 8, /* bogus? */ | |
136 | PS3_SM_ATTR_ALL = 0x0f, | |
137 | }; | |
138 | ||
139 | /** | |
140 | * enum ps3_sys_manager_event - External event type, reported by system manager. | |
ea24608f GL |
141 | * @PS3_SM_EVENT_POWER_PRESSED: payload.value = |
142 | * enum ps3_sys_manager_button_event. | |
fde5efd0 | 143 | * @PS3_SM_EVENT_POWER_RELEASED: payload.value = time pressed in millisec. |
ea24608f GL |
144 | * @PS3_SM_EVENT_RESET_PRESSED: payload.value = |
145 | * enum ps3_sys_manager_button_event. | |
fde5efd0 GL |
146 | * @PS3_SM_EVENT_RESET_RELEASED: payload.value = time pressed in millisec. |
147 | * @PS3_SM_EVENT_THERMAL_ALERT: payload.value = thermal zone id. | |
148 | * @PS3_SM_EVENT_THERMAL_CLEARED: payload.value = thermal zone id. | |
149 | */ | |
150 | ||
151 | enum ps3_sys_manager_event { | |
152 | /* version 1 */ | |
153 | PS3_SM_EVENT_POWER_PRESSED = 3, | |
154 | PS3_SM_EVENT_POWER_RELEASED = 4, | |
155 | PS3_SM_EVENT_RESET_PRESSED = 5, | |
156 | PS3_SM_EVENT_RESET_RELEASED = 6, | |
157 | PS3_SM_EVENT_THERMAL_ALERT = 7, | |
158 | PS3_SM_EVENT_THERMAL_CLEARED = 8, | |
159 | /* no info on controller events */ | |
160 | }; | |
161 | ||
ea24608f GL |
162 | /** |
163 | * enum ps3_sys_manager_button_event - Button event payload values. | |
164 | * @PS3_SM_BUTTON_EVENT_HARD: Hardware generated event. | |
165 | * @PS3_SM_BUTTON_EVENT_SOFT: Software generated event. | |
166 | */ | |
167 | ||
168 | enum ps3_sys_manager_button_event { | |
169 | PS3_SM_BUTTON_EVENT_HARD = 0, | |
170 | PS3_SM_BUTTON_EVENT_SOFT = 1, | |
171 | }; | |
172 | ||
fde5efd0 GL |
173 | /** |
174 | * enum ps3_sys_manager_next_op - Operation to perform after lpar is destroyed. | |
175 | */ | |
176 | ||
177 | enum ps3_sys_manager_next_op { | |
178 | /* version 3 */ | |
179 | PS3_SM_NEXT_OP_SYS_SHUTDOWN = 1, | |
180 | PS3_SM_NEXT_OP_SYS_REBOOT = 2, | |
181 | PS3_SM_NEXT_OP_LPAR_REBOOT = 0x82, | |
182 | }; | |
183 | ||
184 | /** | |
185 | * enum ps3_sys_manager_wake_source - Next-op wakeup source (bit position mask). | |
186 | * @PS3_SM_WAKE_DEFAULT: Disk insert, power button, eject button, IR | |
187 | * controller, and bluetooth controller. | |
188 | * @PS3_SM_WAKE_RTC: | |
189 | * @PS3_SM_WAKE_RTC_ERROR: | |
190 | * @PS3_SM_WAKE_P_O_R: Power on reset. | |
191 | * | |
192 | * Additional wakeup sources when specifying PS3_SM_NEXT_OP_SYS_SHUTDOWN. | |
50dad902 GL |
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. | |
fde5efd0 GL |
196 | */ |
197 | ||
198 | enum ps3_sys_manager_wake_source { | |
199 | /* version 3 */ | |
200 | PS3_SM_WAKE_DEFAULT = 0, | |
201 | PS3_SM_WAKE_RTC = 0x00000040, | |
202 | PS3_SM_WAKE_RTC_ERROR = 0x00000080, | |
50dad902 | 203 | PS3_SM_WAKE_P_O_R = 0x80000000, |
fde5efd0 GL |
204 | }; |
205 | ||
206 | /** | |
207 | * enum ps3_sys_manager_cmd - Command from system manager to guest. | |
208 | * | |
209 | * The guest completes the actions needed, then acks or naks the command via | |
210 | * ps3_sys_manager_send_response(). In the case of @PS3_SM_CMD_SHUTDOWN, | |
211 | * the guest must be fully prepared for a system poweroff prior to acking the | |
212 | * command. | |
213 | */ | |
214 | ||
215 | enum ps3_sys_manager_cmd { | |
216 | /* version 1 */ | |
217 | PS3_SM_CMD_SHUTDOWN = 1, /* shutdown guest OS */ | |
218 | }; | |
219 | ||
66c63b84 GL |
220 | /** |
221 | * ps3_sm_force_power_off - Poweroff helper. | |
222 | * | |
223 | * A global variable used to force a poweroff when the power button has | |
224 | * been pressed irrespective of how init handles the ctrl_alt_del signal. | |
225 | * | |
226 | */ | |
227 | ||
228 | static unsigned int ps3_sm_force_power_off; | |
229 | ||
fde5efd0 GL |
230 | /** |
231 | * ps3_sys_manager_write - Helper to write a two part message to the vuart. | |
232 | * | |
233 | */ | |
234 | ||
66c63b84 | 235 | static int ps3_sys_manager_write(struct ps3_system_bus_device *dev, |
fde5efd0 GL |
236 | const struct ps3_sys_manager_header *header, const void *payload) |
237 | { | |
238 | int result; | |
239 | ||
240 | BUG_ON(header->version != 1); | |
241 | BUG_ON(header->size != 16); | |
242 | BUG_ON(header->payload_size != 8 && header->payload_size != 16); | |
243 | BUG_ON(header->service_id > 8); | |
244 | ||
245 | result = ps3_vuart_write(dev, header, | |
246 | sizeof(struct ps3_sys_manager_header)); | |
247 | ||
248 | if (!result) | |
249 | result = ps3_vuart_write(dev, payload, header->payload_size); | |
250 | ||
251 | return result; | |
252 | } | |
253 | ||
254 | /** | |
255 | * ps3_sys_manager_send_attr - Send a 'set attribute' to the system manager. | |
256 | * | |
257 | */ | |
258 | ||
66c63b84 | 259 | static int ps3_sys_manager_send_attr(struct ps3_system_bus_device *dev, |
fde5efd0 GL |
260 | enum ps3_sys_manager_attr attr) |
261 | { | |
66c63b84 | 262 | struct ps3_sys_manager_header header; |
fde5efd0 GL |
263 | struct { |
264 | u8 version; | |
265 | u8 reserved_1[3]; | |
266 | u32 attribute; | |
267 | } payload; | |
268 | ||
269 | BUILD_BUG_ON(sizeof(payload) != 8); | |
270 | ||
271 | dev_dbg(&dev->core, "%s:%d: %xh\n", __func__, __LINE__, attr); | |
272 | ||
66c63b84 GL |
273 | memset(&header, 0, sizeof(header)); |
274 | header.version = 1; | |
275 | header.size = 16; | |
276 | header.payload_size = 16; | |
277 | header.service_id = PS3_SM_SERVICE_ID_SET_ATTR; | |
278 | ||
fde5efd0 GL |
279 | memset(&payload, 0, sizeof(payload)); |
280 | payload.version = 1; | |
281 | payload.attribute = attr; | |
282 | ||
283 | return ps3_sys_manager_write(dev, &header, &payload); | |
284 | } | |
285 | ||
286 | /** | |
287 | * ps3_sys_manager_send_next_op - Send a 'set next op' to the system manager. | |
288 | * | |
289 | * Tell the system manager what to do after this lpar is destroyed. | |
290 | */ | |
291 | ||
66c63b84 | 292 | static int ps3_sys_manager_send_next_op(struct ps3_system_bus_device *dev, |
fde5efd0 GL |
293 | enum ps3_sys_manager_next_op op, |
294 | enum ps3_sys_manager_wake_source wake_source) | |
295 | { | |
66c63b84 | 296 | struct ps3_sys_manager_header header; |
fde5efd0 GL |
297 | struct { |
298 | u8 version; | |
299 | u8 type; | |
300 | u8 gos_id; | |
301 | u8 reserved_1; | |
302 | u32 wake_source; | |
303 | u8 reserved_2[8]; | |
304 | } payload; | |
305 | ||
306 | BUILD_BUG_ON(sizeof(payload) != 16); | |
307 | ||
308 | dev_dbg(&dev->core, "%s:%d: (%xh)\n", __func__, __LINE__, op); | |
309 | ||
66c63b84 GL |
310 | memset(&header, 0, sizeof(header)); |
311 | header.version = 1; | |
312 | header.size = 16; | |
313 | header.payload_size = 16; | |
314 | header.service_id = PS3_SM_SERVICE_ID_SET_NEXT_OP; | |
315 | ||
fde5efd0 GL |
316 | memset(&payload, 0, sizeof(payload)); |
317 | payload.version = 3; | |
318 | payload.type = op; | |
319 | payload.gos_id = 3; /* other os */ | |
320 | payload.wake_source = wake_source; | |
321 | ||
322 | return ps3_sys_manager_write(dev, &header, &payload); | |
323 | } | |
324 | ||
325 | /** | |
326 | * ps3_sys_manager_send_request_shutdown - Send 'request' to the system manager. | |
327 | * | |
328 | * The guest sends this message to request an operation or action of the system | |
329 | * manager. The reply is a command message from the system manager. In the | |
330 | * command handler the guest performs the requested operation. The result of | |
331 | * the command is then communicated back to the system manager with a response | |
332 | * message. | |
333 | * | |
66c63b84 | 334 | * Currently, the only supported request is the 'shutdown self' request. |
fde5efd0 GL |
335 | */ |
336 | ||
66c63b84 GL |
337 | static int ps3_sys_manager_send_request_shutdown( |
338 | struct ps3_system_bus_device *dev) | |
fde5efd0 | 339 | { |
66c63b84 | 340 | struct ps3_sys_manager_header header; |
fde5efd0 GL |
341 | struct { |
342 | u8 version; | |
343 | u8 type; | |
344 | u8 gos_id; | |
345 | u8 reserved_1[13]; | |
66c63b84 | 346 | } payload; |
fde5efd0 GL |
347 | |
348 | BUILD_BUG_ON(sizeof(payload) != 16); | |
349 | ||
350 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
351 | ||
66c63b84 GL |
352 | memset(&header, 0, sizeof(header)); |
353 | header.version = 1; | |
354 | header.size = 16; | |
355 | header.payload_size = 16; | |
356 | header.service_id = PS3_SM_SERVICE_ID_REQUEST; | |
357 | ||
358 | memset(&payload, 0, sizeof(payload)); | |
359 | payload.version = 1; | |
360 | payload.type = 1; /* shutdown */ | |
361 | payload.gos_id = 0; /* self */ | |
362 | ||
fde5efd0 GL |
363 | return ps3_sys_manager_write(dev, &header, &payload); |
364 | } | |
365 | ||
366 | /** | |
367 | * ps3_sys_manager_send_response - Send a 'response' to the system manager. | |
368 | * @status: zero = success, others fail. | |
369 | * | |
370 | * The guest sends this message to the system manager to acnowledge success or | |
371 | * failure of a command sent by the system manager. | |
372 | */ | |
373 | ||
66c63b84 | 374 | static int ps3_sys_manager_send_response(struct ps3_system_bus_device *dev, |
fde5efd0 GL |
375 | u64 status) |
376 | { | |
66c63b84 | 377 | struct ps3_sys_manager_header header; |
fde5efd0 GL |
378 | struct { |
379 | u8 version; | |
380 | u8 reserved_1[3]; | |
381 | u8 status; | |
382 | u8 reserved_2[11]; | |
383 | } payload; | |
384 | ||
385 | BUILD_BUG_ON(sizeof(payload) != 16); | |
386 | ||
387 | dev_dbg(&dev->core, "%s:%d: (%s)\n", __func__, __LINE__, | |
388 | (status ? "nak" : "ack")); | |
389 | ||
66c63b84 GL |
390 | memset(&header, 0, sizeof(header)); |
391 | header.version = 1; | |
392 | header.size = 16; | |
393 | header.payload_size = 16; | |
394 | header.service_id = PS3_SM_SERVICE_ID_RESPONSE; | |
395 | ||
fde5efd0 GL |
396 | memset(&payload, 0, sizeof(payload)); |
397 | payload.version = 1; | |
398 | payload.status = status; | |
399 | ||
400 | return ps3_sys_manager_write(dev, &header, &payload); | |
401 | } | |
402 | ||
403 | /** | |
404 | * ps3_sys_manager_handle_event - Second stage event msg handler. | |
405 | * | |
406 | */ | |
407 | ||
66c63b84 | 408 | static int ps3_sys_manager_handle_event(struct ps3_system_bus_device *dev) |
fde5efd0 GL |
409 | { |
410 | int result; | |
411 | struct { | |
412 | u8 version; | |
413 | u8 type; | |
414 | u8 reserved_1[2]; | |
415 | u32 value; | |
416 | u8 reserved_2[8]; | |
417 | } event; | |
418 | ||
419 | BUILD_BUG_ON(sizeof(event) != 16); | |
420 | ||
421 | result = ps3_vuart_read(dev, &event, sizeof(event)); | |
66c63b84 | 422 | BUG_ON(result && "need to retry here"); |
fde5efd0 GL |
423 | |
424 | if (event.version != 1) { | |
425 | dev_dbg(&dev->core, "%s:%d: unsupported event version (%u)\n", | |
426 | __func__, __LINE__, event.version); | |
427 | return -EIO; | |
428 | } | |
429 | ||
430 | switch (event.type) { | |
431 | case PS3_SM_EVENT_POWER_PRESSED: | |
ea24608f GL |
432 | dev_dbg(&dev->core, "%s:%d: POWER_PRESSED (%s)\n", |
433 | __func__, __LINE__, | |
434 | (event.value == PS3_SM_BUTTON_EVENT_SOFT ? "soft" | |
435 | : "hard")); | |
66c63b84 GL |
436 | ps3_sm_force_power_off = 1; |
437 | /* | |
438 | * A memory barrier is use here to sync memory since | |
439 | * ps3_sys_manager_final_restart() could be called on | |
440 | * another cpu. | |
441 | */ | |
442 | wmb(); | |
443 | kill_cad_pid(SIGINT, 1); /* ctrl_alt_del */ | |
fde5efd0 GL |
444 | break; |
445 | case PS3_SM_EVENT_POWER_RELEASED: | |
446 | dev_dbg(&dev->core, "%s:%d: POWER_RELEASED (%u ms)\n", | |
447 | __func__, __LINE__, event.value); | |
66c63b84 GL |
448 | break; |
449 | case PS3_SM_EVENT_RESET_PRESSED: | |
ea24608f GL |
450 | dev_dbg(&dev->core, "%s:%d: RESET_PRESSED (%s)\n", |
451 | __func__, __LINE__, | |
452 | (event.value == PS3_SM_BUTTON_EVENT_SOFT ? "soft" | |
453 | : "hard")); | |
66c63b84 GL |
454 | ps3_sm_force_power_off = 0; |
455 | /* | |
456 | * A memory barrier is use here to sync memory since | |
457 | * ps3_sys_manager_final_restart() could be called on | |
458 | * another cpu. | |
459 | */ | |
460 | wmb(); | |
461 | kill_cad_pid(SIGINT, 1); /* ctrl_alt_del */ | |
462 | break; | |
463 | case PS3_SM_EVENT_RESET_RELEASED: | |
464 | dev_dbg(&dev->core, "%s:%d: RESET_RELEASED (%u ms)\n", | |
465 | __func__, __LINE__, event.value); | |
fde5efd0 GL |
466 | break; |
467 | case PS3_SM_EVENT_THERMAL_ALERT: | |
468 | dev_dbg(&dev->core, "%s:%d: THERMAL_ALERT (zone %u)\n", | |
469 | __func__, __LINE__, event.value); | |
eff56c92 | 470 | pr_info("PS3 Thermal Alert Zone %u\n", event.value); |
fde5efd0 GL |
471 | break; |
472 | case PS3_SM_EVENT_THERMAL_CLEARED: | |
473 | dev_dbg(&dev->core, "%s:%d: THERMAL_CLEARED (zone %u)\n", | |
474 | __func__, __LINE__, event.value); | |
475 | break; | |
476 | default: | |
477 | dev_dbg(&dev->core, "%s:%d: unknown event (%u)\n", | |
478 | __func__, __LINE__, event.type); | |
479 | return -EIO; | |
480 | } | |
481 | ||
482 | return 0; | |
483 | } | |
484 | /** | |
485 | * ps3_sys_manager_handle_cmd - Second stage command msg handler. | |
486 | * | |
487 | * The system manager sends this in reply to a 'request' message from the guest. | |
488 | */ | |
489 | ||
66c63b84 | 490 | static int ps3_sys_manager_handle_cmd(struct ps3_system_bus_device *dev) |
fde5efd0 GL |
491 | { |
492 | int result; | |
493 | struct { | |
494 | u8 version; | |
495 | u8 type; | |
496 | u8 reserved_1[14]; | |
497 | } cmd; | |
498 | ||
499 | BUILD_BUG_ON(sizeof(cmd) != 16); | |
500 | ||
501 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
502 | ||
503 | result = ps3_vuart_read(dev, &cmd, sizeof(cmd)); | |
66c63b84 | 504 | BUG_ON(result && "need to retry here"); |
fde5efd0 | 505 | |
eff56c92 | 506 | if (result) |
fde5efd0 GL |
507 | return result; |
508 | ||
509 | if (cmd.version != 1) { | |
510 | dev_dbg(&dev->core, "%s:%d: unsupported cmd version (%u)\n", | |
511 | __func__, __LINE__, cmd.version); | |
512 | return -EIO; | |
513 | } | |
514 | ||
515 | if (cmd.type != PS3_SM_CMD_SHUTDOWN) { | |
516 | dev_dbg(&dev->core, "%s:%d: unknown cmd (%u)\n", | |
517 | __func__, __LINE__, cmd.type); | |
518 | return -EIO; | |
519 | } | |
520 | ||
521 | ps3_sys_manager_send_response(dev, 0); | |
522 | return 0; | |
523 | } | |
524 | ||
525 | /** | |
526 | * ps3_sys_manager_handle_msg - First stage msg handler. | |
527 | * | |
66c63b84 | 528 | * Can be called directly to manually poll vuart and pump message handler. |
fde5efd0 GL |
529 | */ |
530 | ||
66c63b84 | 531 | static int ps3_sys_manager_handle_msg(struct ps3_system_bus_device *dev) |
fde5efd0 GL |
532 | { |
533 | int result; | |
534 | struct ps3_sys_manager_header header; | |
535 | ||
536 | result = ps3_vuart_read(dev, &header, | |
537 | sizeof(struct ps3_sys_manager_header)); | |
538 | ||
eff56c92 | 539 | if (result) |
fde5efd0 GL |
540 | return result; |
541 | ||
542 | if (header.version != 1) { | |
543 | dev_dbg(&dev->core, "%s:%d: unsupported header version (%u)\n", | |
544 | __func__, __LINE__, header.version); | |
66c63b84 | 545 | dump_sm_header(&header); |
fde5efd0 GL |
546 | goto fail_header; |
547 | } | |
548 | ||
549 | BUILD_BUG_ON(sizeof(header) != 16); | |
66c63b84 GL |
550 | |
551 | if (header.size != 16 || (header.payload_size != 8 | |
552 | && header.payload_size != 16)) { | |
553 | dump_sm_header(&header); | |
554 | BUG(); | |
555 | } | |
fde5efd0 GL |
556 | |
557 | switch (header.service_id) { | |
558 | case PS3_SM_SERVICE_ID_EXTERN_EVENT: | |
559 | dev_dbg(&dev->core, "%s:%d: EVENT\n", __func__, __LINE__); | |
560 | return ps3_sys_manager_handle_event(dev); | |
561 | case PS3_SM_SERVICE_ID_COMMAND: | |
562 | dev_dbg(&dev->core, "%s:%d: COMMAND\n", __func__, __LINE__); | |
563 | return ps3_sys_manager_handle_cmd(dev); | |
66c63b84 GL |
564 | case PS3_SM_SERVICE_ID_REQUEST_ERROR: |
565 | dev_dbg(&dev->core, "%s:%d: REQUEST_ERROR\n", __func__, | |
566 | __LINE__); | |
567 | dump_sm_header(&header); | |
568 | break; | |
fde5efd0 GL |
569 | default: |
570 | dev_dbg(&dev->core, "%s:%d: unknown service_id (%u)\n", | |
571 | __func__, __LINE__, header.service_id); | |
572 | break; | |
573 | } | |
574 | goto fail_id; | |
575 | ||
576 | fail_header: | |
577 | ps3_vuart_clear_rx_bytes(dev, 0); | |
578 | return -EIO; | |
579 | fail_id: | |
580 | ps3_vuart_clear_rx_bytes(dev, header.payload_size); | |
581 | return -EIO; | |
582 | } | |
583 | ||
584 | /** | |
66c63b84 | 585 | * ps3_sys_manager_final_power_off - The final platform machine_power_off routine. |
fde5efd0 | 586 | * |
66c63b84 | 587 | * This routine never returns. The routine disables asynchronous vuart reads |
fde5efd0 GL |
588 | * then spins calling ps3_sys_manager_handle_msg() to receive and acknowledge |
589 | * the shutdown command sent from the system manager. Soon after the | |
590 | * acknowledgement is sent the lpar is destroyed by the HV. This routine | |
66c63b84 GL |
591 | * should only be called from ps3_power_off() through |
592 | * ps3_sys_manager_ops.power_off. | |
fde5efd0 GL |
593 | */ |
594 | ||
66c63b84 | 595 | static void ps3_sys_manager_final_power_off(struct ps3_system_bus_device *dev) |
fde5efd0 | 596 | { |
66c63b84 | 597 | BUG_ON(!dev); |
fde5efd0 GL |
598 | |
599 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
600 | ||
601 | ps3_vuart_cancel_async(dev); | |
602 | ||
66c63b84 | 603 | ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_SHUTDOWN, |
fde5efd0 GL |
604 | PS3_SM_WAKE_DEFAULT); |
605 | ps3_sys_manager_send_request_shutdown(dev); | |
606 | ||
eff56c92 | 607 | pr_emerg("System Halted, OK to turn off power\n"); |
fde5efd0 | 608 | |
eff56c92 | 609 | while (1) |
fde5efd0 GL |
610 | ps3_sys_manager_handle_msg(dev); |
611 | } | |
612 | ||
613 | /** | |
66c63b84 | 614 | * ps3_sys_manager_final_restart - The final platform machine_restart routine. |
fde5efd0 | 615 | * |
66c63b84 | 616 | * This routine never returns. The routine disables asynchronous vuart reads |
fde5efd0 GL |
617 | * then spins calling ps3_sys_manager_handle_msg() to receive and acknowledge |
618 | * the shutdown command sent from the system manager. Soon after the | |
619 | * acknowledgement is sent the lpar is destroyed by the HV. This routine | |
66c63b84 | 620 | * should only be called from ps3_restart() through ps3_sys_manager_ops.restart. |
fde5efd0 GL |
621 | */ |
622 | ||
66c63b84 | 623 | static void ps3_sys_manager_final_restart(struct ps3_system_bus_device *dev) |
fde5efd0 | 624 | { |
66c63b84 | 625 | BUG_ON(!dev); |
fde5efd0 GL |
626 | |
627 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
628 | ||
66c63b84 GL |
629 | /* Check if we got here via a power button event. */ |
630 | ||
631 | if (ps3_sm_force_power_off) { | |
632 | dev_dbg(&dev->core, "%s:%d: forcing poweroff\n", | |
633 | __func__, __LINE__); | |
634 | ps3_sys_manager_final_power_off(dev); | |
635 | } | |
636 | ||
fde5efd0 GL |
637 | ps3_vuart_cancel_async(dev); |
638 | ||
66c63b84 | 639 | ps3_sys_manager_send_attr(dev, 0); |
75ffe88d | 640 | ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_REBOOT, |
fde5efd0 GL |
641 | PS3_SM_WAKE_DEFAULT); |
642 | ps3_sys_manager_send_request_shutdown(dev); | |
643 | ||
eff56c92 | 644 | pr_emerg("System Halted, OK to turn off power\n"); |
fde5efd0 | 645 | |
eff56c92 | 646 | while (1) |
fde5efd0 GL |
647 | ps3_sys_manager_handle_msg(dev); |
648 | } | |
649 | ||
66c63b84 GL |
650 | /** |
651 | * ps3_sys_manager_work - Asynchronous read handler. | |
652 | * | |
653 | * Signaled when PS3_SM_RX_MSG_LEN_MIN bytes arrive at the vuart port. | |
654 | */ | |
655 | ||
656 | static void ps3_sys_manager_work(struct ps3_system_bus_device *dev) | |
657 | { | |
658 | ps3_sys_manager_handle_msg(dev); | |
659 | ps3_vuart_read_async(dev, PS3_SM_RX_MSG_LEN_MIN); | |
660 | } | |
661 | ||
662 | static int ps3_sys_manager_probe(struct ps3_system_bus_device *dev) | |
fde5efd0 GL |
663 | { |
664 | int result; | |
66c63b84 | 665 | struct ps3_sys_manager_ops ops; |
fde5efd0 GL |
666 | |
667 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
668 | ||
66c63b84 GL |
669 | ops.power_off = ps3_sys_manager_final_power_off; |
670 | ops.restart = ps3_sys_manager_final_restart; | |
671 | ops.dev = dev; | |
672 | ||
673 | /* ps3_sys_manager_register_ops copies ops. */ | |
674 | ||
675 | ps3_sys_manager_register_ops(&ops); | |
fde5efd0 GL |
676 | |
677 | result = ps3_sys_manager_send_attr(dev, PS3_SM_ATTR_ALL); | |
678 | BUG_ON(result); | |
679 | ||
66c63b84 | 680 | result = ps3_vuart_read_async(dev, PS3_SM_RX_MSG_LEN_MIN); |
fde5efd0 GL |
681 | BUG_ON(result); |
682 | ||
683 | return result; | |
684 | } | |
685 | ||
66c63b84 GL |
686 | static int ps3_sys_manager_remove(struct ps3_system_bus_device *dev) |
687 | { | |
688 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
689 | return 0; | |
690 | } | |
691 | ||
692 | static void ps3_sys_manager_shutdown(struct ps3_system_bus_device *dev) | |
693 | { | |
694 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
695 | } | |
696 | ||
fde5efd0 | 697 | static struct ps3_vuart_port_driver ps3_sys_manager = { |
66c63b84 GL |
698 | .core.match_id = PS3_MATCH_ID_SYSTEM_MANAGER, |
699 | .core.core.name = "ps3_sys_manager", | |
fde5efd0 | 700 | .probe = ps3_sys_manager_probe, |
66c63b84 GL |
701 | .remove = ps3_sys_manager_remove, |
702 | .shutdown = ps3_sys_manager_shutdown, | |
703 | .work = ps3_sys_manager_work, | |
fde5efd0 GL |
704 | }; |
705 | ||
706 | static int __init ps3_sys_manager_init(void) | |
707 | { | |
ef596c69 GU |
708 | if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) |
709 | return -ENODEV; | |
710 | ||
fde5efd0 GL |
711 | return ps3_vuart_port_driver_register(&ps3_sys_manager); |
712 | } | |
713 | ||
714 | module_init(ps3_sys_manager_init); | |
66c63b84 GL |
715 | /* Module remove not supported. */ |
716 | ||
50dad902 GL |
717 | MODULE_AUTHOR("Sony Corporation"); |
718 | MODULE_LICENSE("GPL v2"); | |
719 | MODULE_DESCRIPTION("PS3 System Manager"); | |
66c63b84 | 720 | MODULE_ALIAS(PS3_MODULE_ALIAS_SYSTEM_MANAGER); |