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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 | ||
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 | * | |
66c63b84 | 38 | * The system manager provides an asynchronous system event notification |
fde5efd0 GL |
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. | |
66c63b84 | 55 | * @request_tag: Unique number to identify reply. |
fde5efd0 GL |
56 | */ |
57 | ||
58 | struct 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; | |
66c63b84 GL |
65 | u16 reserved_2; |
66 | u32 request_tag; | |
fde5efd0 GL |
67 | }; |
68 | ||
66c63b84 GL |
69 | #define dump_sm_header(_h) _dump_sm_header(_h, __func__, __LINE__) |
70 | static 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 | ||
fde5efd0 | 80 | /** |
66c63b84 GL |
81 | * @PS3_SM_RX_MSG_LEN_MIN - Shortest received message length. |
82 | * @PS3_SM_RX_MSG_LEN_MAX - Longest received message length. | |
fde5efd0 | 83 | * |
66c63b84 GL |
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. | |
fde5efd0 GL |
88 | */ |
89 | ||
90 | enum { | |
66c63b84 GL |
91 | PS3_SM_RX_MSG_LEN_MIN = 24, |
92 | PS3_SM_RX_MSG_LEN_MAX = 32, | |
fde5efd0 GL |
93 | }; |
94 | ||
95 | /** | |
96 | * enum ps3_sys_manager_service_id - Message header service_id. | |
66c63b84 GL |
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. | |
fde5efd0 GL |
108 | */ |
109 | ||
110 | enum 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, | |
66c63b84 | 117 | PS3_SM_SERVICE_ID_REQUEST_ERROR = 6, |
fde5efd0 GL |
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 | ||
134 | enum 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 | ||
153 | enum 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 | ||
168 | enum 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 | ||
187 | enum 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 | ||
204 | enum ps3_sys_manager_cmd { | |
205 | /* version 1 */ | |
206 | PS3_SM_CMD_SHUTDOWN = 1, /* shutdown guest OS */ | |
207 | }; | |
208 | ||
66c63b84 GL |
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 | ||
217 | static unsigned int ps3_sm_force_power_off; | |
218 | ||
fde5efd0 GL |
219 | /** |
220 | * ps3_sys_manager_write - Helper to write a two part message to the vuart. | |
221 | * | |
222 | */ | |
223 | ||
66c63b84 | 224 | static int ps3_sys_manager_write(struct ps3_system_bus_device *dev, |
fde5efd0 GL |
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 | ||
66c63b84 | 248 | static int ps3_sys_manager_send_attr(struct ps3_system_bus_device *dev, |
fde5efd0 GL |
249 | enum ps3_sys_manager_attr attr) |
250 | { | |
66c63b84 | 251 | struct ps3_sys_manager_header header; |
fde5efd0 GL |
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 | ||
66c63b84 GL |
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 | ||
fde5efd0 GL |
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 | ||
66c63b84 | 281 | static int ps3_sys_manager_send_next_op(struct ps3_system_bus_device *dev, |
fde5efd0 GL |
282 | enum ps3_sys_manager_next_op op, |
283 | enum ps3_sys_manager_wake_source wake_source) | |
284 | { | |
66c63b84 | 285 | struct ps3_sys_manager_header header; |
fde5efd0 GL |
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 | ||
66c63b84 GL |
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 | ||
fde5efd0 GL |
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 | * | |
66c63b84 | 323 | * Currently, the only supported request is the 'shutdown self' request. |
fde5efd0 GL |
324 | */ |
325 | ||
66c63b84 GL |
326 | static int ps3_sys_manager_send_request_shutdown( |
327 | struct ps3_system_bus_device *dev) | |
fde5efd0 | 328 | { |
66c63b84 | 329 | struct ps3_sys_manager_header header; |
fde5efd0 GL |
330 | struct { |
331 | u8 version; | |
332 | u8 type; | |
333 | u8 gos_id; | |
334 | u8 reserved_1[13]; | |
66c63b84 | 335 | } payload; |
fde5efd0 GL |
336 | |
337 | BUILD_BUG_ON(sizeof(payload) != 16); | |
338 | ||
339 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
340 | ||
66c63b84 GL |
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 | ||
fde5efd0 GL |
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 | ||
66c63b84 | 363 | static int ps3_sys_manager_send_response(struct ps3_system_bus_device *dev, |
fde5efd0 GL |
364 | u64 status) |
365 | { | |
66c63b84 | 366 | struct ps3_sys_manager_header header; |
fde5efd0 GL |
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 | ||
66c63b84 GL |
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 | ||
fde5efd0 GL |
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 | ||
66c63b84 | 397 | static int ps3_sys_manager_handle_event(struct ps3_system_bus_device *dev) |
fde5efd0 GL |
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)); | |
66c63b84 | 411 | BUG_ON(result && "need to retry here"); |
fde5efd0 GL |
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__); | |
66c63b84 GL |
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 */ | |
fde5efd0 GL |
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); | |
66c63b84 GL |
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); | |
fde5efd0 GL |
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); | |
eff56c92 | 455 | pr_info("PS3 Thermal Alert Zone %u\n", event.value); |
fde5efd0 GL |
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 | ||
66c63b84 | 475 | static int ps3_sys_manager_handle_cmd(struct ps3_system_bus_device *dev) |
fde5efd0 GL |
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)); | |
66c63b84 | 489 | BUG_ON(result && "need to retry here"); |
fde5efd0 | 490 | |
eff56c92 | 491 | if (result) |
fde5efd0 GL |
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 | * | |
66c63b84 | 513 | * Can be called directly to manually poll vuart and pump message handler. |
fde5efd0 GL |
514 | */ |
515 | ||
66c63b84 | 516 | static int ps3_sys_manager_handle_msg(struct ps3_system_bus_device *dev) |
fde5efd0 GL |
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 | ||
eff56c92 | 524 | if (result) |
fde5efd0 GL |
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); | |
66c63b84 | 530 | dump_sm_header(&header); |
fde5efd0 GL |
531 | goto fail_header; |
532 | } | |
533 | ||
534 | BUILD_BUG_ON(sizeof(header) != 16); | |
66c63b84 GL |
535 | |
536 | if (header.size != 16 || (header.payload_size != 8 | |
537 | && header.payload_size != 16)) { | |
538 | dump_sm_header(&header); | |
539 | BUG(); | |
540 | } | |
fde5efd0 GL |
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); | |
66c63b84 GL |
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; | |
fde5efd0 GL |
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 | ||
561 | fail_header: | |
562 | ps3_vuart_clear_rx_bytes(dev, 0); | |
563 | return -EIO; | |
564 | fail_id: | |
565 | ps3_vuart_clear_rx_bytes(dev, header.payload_size); | |
566 | return -EIO; | |
567 | } | |
568 | ||
569 | /** | |
66c63b84 | 570 | * ps3_sys_manager_final_power_off - The final platform machine_power_off routine. |
fde5efd0 | 571 | * |
66c63b84 | 572 | * This routine never returns. The routine disables asynchronous vuart reads |
fde5efd0 GL |
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 | |
66c63b84 GL |
576 | * should only be called from ps3_power_off() through |
577 | * ps3_sys_manager_ops.power_off. | |
fde5efd0 GL |
578 | */ |
579 | ||
66c63b84 | 580 | static void ps3_sys_manager_final_power_off(struct ps3_system_bus_device *dev) |
fde5efd0 | 581 | { |
66c63b84 | 582 | BUG_ON(!dev); |
fde5efd0 GL |
583 | |
584 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
585 | ||
586 | ps3_vuart_cancel_async(dev); | |
587 | ||
66c63b84 | 588 | ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_SHUTDOWN, |
fde5efd0 GL |
589 | PS3_SM_WAKE_DEFAULT); |
590 | ps3_sys_manager_send_request_shutdown(dev); | |
591 | ||
eff56c92 | 592 | pr_emerg("System Halted, OK to turn off power\n"); |
fde5efd0 | 593 | |
eff56c92 | 594 | while (1) |
fde5efd0 GL |
595 | ps3_sys_manager_handle_msg(dev); |
596 | } | |
597 | ||
598 | /** | |
66c63b84 | 599 | * ps3_sys_manager_final_restart - The final platform machine_restart routine. |
fde5efd0 | 600 | * |
66c63b84 | 601 | * This routine never returns. The routine disables asynchronous vuart reads |
fde5efd0 GL |
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 | |
66c63b84 | 605 | * should only be called from ps3_restart() through ps3_sys_manager_ops.restart. |
fde5efd0 GL |
606 | */ |
607 | ||
66c63b84 | 608 | static void ps3_sys_manager_final_restart(struct ps3_system_bus_device *dev) |
fde5efd0 | 609 | { |
66c63b84 | 610 | BUG_ON(!dev); |
fde5efd0 GL |
611 | |
612 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
613 | ||
66c63b84 GL |
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 | ||
fde5efd0 GL |
622 | ps3_vuart_cancel_async(dev); |
623 | ||
66c63b84 | 624 | ps3_sys_manager_send_attr(dev, 0); |
75ffe88d | 625 | ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_REBOOT, |
fde5efd0 GL |
626 | PS3_SM_WAKE_DEFAULT); |
627 | ps3_sys_manager_send_request_shutdown(dev); | |
628 | ||
eff56c92 | 629 | pr_emerg("System Halted, OK to turn off power\n"); |
fde5efd0 | 630 | |
eff56c92 | 631 | while (1) |
fde5efd0 GL |
632 | ps3_sys_manager_handle_msg(dev); |
633 | } | |
634 | ||
66c63b84 GL |
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 | ||
641 | static 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 | ||
647 | static int ps3_sys_manager_probe(struct ps3_system_bus_device *dev) | |
fde5efd0 GL |
648 | { |
649 | int result; | |
66c63b84 | 650 | struct ps3_sys_manager_ops ops; |
fde5efd0 GL |
651 | |
652 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
653 | ||
66c63b84 GL |
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); | |
fde5efd0 GL |
661 | |
662 | result = ps3_sys_manager_send_attr(dev, PS3_SM_ATTR_ALL); | |
663 | BUG_ON(result); | |
664 | ||
66c63b84 | 665 | result = ps3_vuart_read_async(dev, PS3_SM_RX_MSG_LEN_MIN); |
fde5efd0 GL |
666 | BUG_ON(result); |
667 | ||
668 | return result; | |
669 | } | |
670 | ||
66c63b84 GL |
671 | static 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 | ||
677 | static void ps3_sys_manager_shutdown(struct ps3_system_bus_device *dev) | |
678 | { | |
679 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
680 | } | |
681 | ||
fde5efd0 | 682 | static struct ps3_vuart_port_driver ps3_sys_manager = { |
66c63b84 GL |
683 | .core.match_id = PS3_MATCH_ID_SYSTEM_MANAGER, |
684 | .core.core.name = "ps3_sys_manager", | |
fde5efd0 | 685 | .probe = ps3_sys_manager_probe, |
66c63b84 GL |
686 | .remove = ps3_sys_manager_remove, |
687 | .shutdown = ps3_sys_manager_shutdown, | |
688 | .work = ps3_sys_manager_work, | |
fde5efd0 GL |
689 | }; |
690 | ||
691 | static int __init ps3_sys_manager_init(void) | |
692 | { | |
ef596c69 GU |
693 | if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) |
694 | return -ENODEV; | |
695 | ||
fde5efd0 GL |
696 | return ps3_vuart_port_driver_register(&ps3_sys_manager); |
697 | } | |
698 | ||
699 | module_init(ps3_sys_manager_init); | |
66c63b84 GL |
700 | /* Module remove not supported. */ |
701 | ||
702 | MODULE_ALIAS(PS3_MODULE_ALIAS_SYSTEM_MANAGER); |