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> | |
ca052f79 | 27 | #include <asm/lv1call.h> |
fde5efd0 | 28 | #include <asm/ps3.h> |
ef596c69 | 29 | |
fde5efd0 GL |
30 | #include "vuart.h" |
31 | ||
fde5efd0 GL |
32 | /** |
33 | * ps3_sys_manager - PS3 system manager driver. | |
34 | * | |
66c63b84 | 35 | * The system manager provides an asynchronous system event notification |
fde5efd0 GL |
36 | * mechanism for reporting events like thermal alert and button presses to |
37 | * guests. It also provides support to control system shutdown and startup. | |
38 | * | |
39 | * The actual system manager is implemented as an application running in the | |
40 | * system policy module in lpar_1. Guests communicate with the system manager | |
41 | * through port 2 of the vuart using a simple packet message protocol. | |
42 | * Messages are comprised of a fixed field header followed by a message | |
43 | * specific payload. | |
44 | */ | |
45 | ||
46 | /** | |
47 | * struct ps3_sys_manager_header - System manager message header. | |
48 | * @version: Header version, currently 1. | |
49 | * @size: Header size in bytes, curently 16. | |
50 | * @payload_size: Message payload size in bytes. | |
51 | * @service_id: Message type, one of enum ps3_sys_manager_service_id. | |
66c63b84 | 52 | * @request_tag: Unique number to identify reply. |
fde5efd0 GL |
53 | */ |
54 | ||
55 | struct ps3_sys_manager_header { | |
56 | /* version 1 */ | |
57 | u8 version; | |
58 | u8 size; | |
59 | u16 reserved_1; | |
60 | u32 payload_size; | |
61 | u16 service_id; | |
66c63b84 GL |
62 | u16 reserved_2; |
63 | u32 request_tag; | |
fde5efd0 GL |
64 | }; |
65 | ||
66c63b84 GL |
66 | #define dump_sm_header(_h) _dump_sm_header(_h, __func__, __LINE__) |
67 | static void __maybe_unused _dump_sm_header( | |
68 | const struct ps3_sys_manager_header *h, const char *func, int line) | |
69 | { | |
70 | pr_debug("%s:%d: version: %xh\n", func, line, h->version); | |
71 | pr_debug("%s:%d: size: %xh\n", func, line, h->size); | |
72 | pr_debug("%s:%d: payload_size: %xh\n", func, line, h->payload_size); | |
73 | pr_debug("%s:%d: service_id: %xh\n", func, line, h->service_id); | |
74 | pr_debug("%s:%d: request_tag: %xh\n", func, line, h->request_tag); | |
75 | } | |
76 | ||
fde5efd0 | 77 | /** |
66c63b84 GL |
78 | * @PS3_SM_RX_MSG_LEN_MIN - Shortest received message length. |
79 | * @PS3_SM_RX_MSG_LEN_MAX - Longest received message length. | |
fde5efd0 | 80 | * |
66c63b84 GL |
81 | * Currently all messages received from the system manager are either |
82 | * (16 bytes header + 8 bytes payload = 24 bytes) or (16 bytes header | |
83 | * + 16 bytes payload = 32 bytes). This knowlege is used to simplify | |
84 | * the logic. | |
fde5efd0 GL |
85 | */ |
86 | ||
87 | enum { | |
66c63b84 GL |
88 | PS3_SM_RX_MSG_LEN_MIN = 24, |
89 | PS3_SM_RX_MSG_LEN_MAX = 32, | |
fde5efd0 GL |
90 | }; |
91 | ||
92 | /** | |
93 | * enum ps3_sys_manager_service_id - Message header service_id. | |
66c63b84 GL |
94 | * @PS3_SM_SERVICE_ID_REQUEST: guest --> sys_manager. |
95 | * @PS3_SM_SERVICE_ID_REQUEST_ERROR: guest <-- sys_manager. | |
96 | * @PS3_SM_SERVICE_ID_COMMAND: guest <-- sys_manager. | |
97 | * @PS3_SM_SERVICE_ID_RESPONSE: guest --> sys_manager. | |
98 | * @PS3_SM_SERVICE_ID_SET_ATTR: guest --> sys_manager. | |
99 | * @PS3_SM_SERVICE_ID_EXTERN_EVENT: guest <-- sys_manager. | |
100 | * @PS3_SM_SERVICE_ID_SET_NEXT_OP: guest --> sys_manager. | |
101 | * | |
102 | * PS3_SM_SERVICE_ID_REQUEST_ERROR is returned for invalid data values in a | |
103 | * a PS3_SM_SERVICE_ID_REQUEST message. It also seems to be returned when | |
104 | * a REQUEST message is sent at the wrong time. | |
fde5efd0 GL |
105 | */ |
106 | ||
107 | enum ps3_sys_manager_service_id { | |
108 | /* version 1 */ | |
109 | PS3_SM_SERVICE_ID_REQUEST = 1, | |
110 | PS3_SM_SERVICE_ID_RESPONSE = 2, | |
111 | PS3_SM_SERVICE_ID_COMMAND = 3, | |
112 | PS3_SM_SERVICE_ID_EXTERN_EVENT = 4, | |
113 | PS3_SM_SERVICE_ID_SET_NEXT_OP = 5, | |
66c63b84 | 114 | PS3_SM_SERVICE_ID_REQUEST_ERROR = 6, |
fde5efd0 GL |
115 | PS3_SM_SERVICE_ID_SET_ATTR = 8, |
116 | }; | |
117 | ||
118 | /** | |
119 | * enum ps3_sys_manager_attr - Notification attribute (bit position mask). | |
120 | * @PS3_SM_ATTR_POWER: Power button. | |
121 | * @PS3_SM_ATTR_RESET: Reset button, not available on retail console. | |
122 | * @PS3_SM_ATTR_THERMAL: Sytem thermal alert. | |
123 | * @PS3_SM_ATTR_CONTROLLER: Remote controller event. | |
124 | * @PS3_SM_ATTR_ALL: Logical OR of all. | |
125 | * | |
126 | * The guest tells the system manager which events it is interested in receiving | |
127 | * notice of by sending the system manager a logical OR of notification | |
128 | * attributes via the ps3_sys_manager_send_attr() routine. | |
129 | */ | |
130 | ||
131 | enum ps3_sys_manager_attr { | |
132 | /* version 1 */ | |
133 | PS3_SM_ATTR_POWER = 1, | |
134 | PS3_SM_ATTR_RESET = 2, | |
135 | PS3_SM_ATTR_THERMAL = 4, | |
136 | PS3_SM_ATTR_CONTROLLER = 8, /* bogus? */ | |
137 | PS3_SM_ATTR_ALL = 0x0f, | |
138 | }; | |
139 | ||
140 | /** | |
141 | * enum ps3_sys_manager_event - External event type, reported by system manager. | |
ea24608f GL |
142 | * @PS3_SM_EVENT_POWER_PRESSED: payload.value = |
143 | * enum ps3_sys_manager_button_event. | |
fde5efd0 | 144 | * @PS3_SM_EVENT_POWER_RELEASED: payload.value = time pressed in millisec. |
ea24608f GL |
145 | * @PS3_SM_EVENT_RESET_PRESSED: payload.value = |
146 | * enum ps3_sys_manager_button_event. | |
fde5efd0 GL |
147 | * @PS3_SM_EVENT_RESET_RELEASED: payload.value = time pressed in millisec. |
148 | * @PS3_SM_EVENT_THERMAL_ALERT: payload.value = thermal zone id. | |
149 | * @PS3_SM_EVENT_THERMAL_CLEARED: payload.value = thermal zone id. | |
150 | */ | |
151 | ||
152 | enum ps3_sys_manager_event { | |
153 | /* version 1 */ | |
154 | PS3_SM_EVENT_POWER_PRESSED = 3, | |
155 | PS3_SM_EVENT_POWER_RELEASED = 4, | |
156 | PS3_SM_EVENT_RESET_PRESSED = 5, | |
157 | PS3_SM_EVENT_RESET_RELEASED = 6, | |
158 | PS3_SM_EVENT_THERMAL_ALERT = 7, | |
159 | PS3_SM_EVENT_THERMAL_CLEARED = 8, | |
160 | /* no info on controller events */ | |
161 | }; | |
162 | ||
ea24608f GL |
163 | /** |
164 | * enum ps3_sys_manager_button_event - Button event payload values. | |
165 | * @PS3_SM_BUTTON_EVENT_HARD: Hardware generated event. | |
166 | * @PS3_SM_BUTTON_EVENT_SOFT: Software generated event. | |
167 | */ | |
168 | ||
169 | enum ps3_sys_manager_button_event { | |
170 | PS3_SM_BUTTON_EVENT_HARD = 0, | |
171 | PS3_SM_BUTTON_EVENT_SOFT = 1, | |
172 | }; | |
173 | ||
fde5efd0 GL |
174 | /** |
175 | * enum ps3_sys_manager_next_op - Operation to perform after lpar is destroyed. | |
176 | */ | |
177 | ||
178 | enum ps3_sys_manager_next_op { | |
179 | /* version 3 */ | |
180 | PS3_SM_NEXT_OP_SYS_SHUTDOWN = 1, | |
181 | PS3_SM_NEXT_OP_SYS_REBOOT = 2, | |
182 | PS3_SM_NEXT_OP_LPAR_REBOOT = 0x82, | |
183 | }; | |
184 | ||
185 | /** | |
186 | * enum ps3_sys_manager_wake_source - Next-op wakeup source (bit position mask). | |
187 | * @PS3_SM_WAKE_DEFAULT: Disk insert, power button, eject button, IR | |
188 | * controller, and bluetooth controller. | |
189 | * @PS3_SM_WAKE_RTC: | |
190 | * @PS3_SM_WAKE_RTC_ERROR: | |
1c43d265 | 191 | * @PS3_SM_WAKE_W_O_L: Ether or wireless LAN. |
fde5efd0 GL |
192 | * @PS3_SM_WAKE_P_O_R: Power on reset. |
193 | * | |
194 | * Additional wakeup sources when specifying PS3_SM_NEXT_OP_SYS_SHUTDOWN. | |
50dad902 GL |
195 | * The system will always wake from the PS3_SM_WAKE_DEFAULT sources. |
196 | * Sources listed here are the only ones available to guests in the | |
197 | * other-os lpar. | |
fde5efd0 GL |
198 | */ |
199 | ||
200 | enum ps3_sys_manager_wake_source { | |
201 | /* version 3 */ | |
202 | PS3_SM_WAKE_DEFAULT = 0, | |
203 | PS3_SM_WAKE_RTC = 0x00000040, | |
204 | PS3_SM_WAKE_RTC_ERROR = 0x00000080, | |
1c43d265 | 205 | PS3_SM_WAKE_W_O_L = 0x00000400, |
50dad902 | 206 | PS3_SM_WAKE_P_O_R = 0x80000000, |
fde5efd0 GL |
207 | }; |
208 | ||
1c43d265 GL |
209 | /** |
210 | * user_wake_sources - User specified wakeup sources. | |
211 | * | |
212 | * Logical OR of enum ps3_sys_manager_wake_source types. | |
213 | */ | |
214 | ||
215 | static u32 user_wake_sources = PS3_SM_WAKE_DEFAULT; | |
216 | ||
fde5efd0 GL |
217 | /** |
218 | * enum ps3_sys_manager_cmd - Command from system manager to guest. | |
219 | * | |
220 | * The guest completes the actions needed, then acks or naks the command via | |
221 | * ps3_sys_manager_send_response(). In the case of @PS3_SM_CMD_SHUTDOWN, | |
222 | * the guest must be fully prepared for a system poweroff prior to acking the | |
223 | * command. | |
224 | */ | |
225 | ||
226 | enum ps3_sys_manager_cmd { | |
227 | /* version 1 */ | |
228 | PS3_SM_CMD_SHUTDOWN = 1, /* shutdown guest OS */ | |
229 | }; | |
230 | ||
66c63b84 GL |
231 | /** |
232 | * ps3_sm_force_power_off - Poweroff helper. | |
233 | * | |
234 | * A global variable used to force a poweroff when the power button has | |
235 | * been pressed irrespective of how init handles the ctrl_alt_del signal. | |
236 | * | |
237 | */ | |
238 | ||
239 | static unsigned int ps3_sm_force_power_off; | |
240 | ||
fde5efd0 GL |
241 | /** |
242 | * ps3_sys_manager_write - Helper to write a two part message to the vuart. | |
243 | * | |
244 | */ | |
245 | ||
66c63b84 | 246 | static int ps3_sys_manager_write(struct ps3_system_bus_device *dev, |
fde5efd0 GL |
247 | const struct ps3_sys_manager_header *header, const void *payload) |
248 | { | |
249 | int result; | |
250 | ||
251 | BUG_ON(header->version != 1); | |
252 | BUG_ON(header->size != 16); | |
253 | BUG_ON(header->payload_size != 8 && header->payload_size != 16); | |
254 | BUG_ON(header->service_id > 8); | |
255 | ||
256 | result = ps3_vuart_write(dev, header, | |
257 | sizeof(struct ps3_sys_manager_header)); | |
258 | ||
259 | if (!result) | |
260 | result = ps3_vuart_write(dev, payload, header->payload_size); | |
261 | ||
262 | return result; | |
263 | } | |
264 | ||
265 | /** | |
266 | * ps3_sys_manager_send_attr - Send a 'set attribute' to the system manager. | |
267 | * | |
268 | */ | |
269 | ||
66c63b84 | 270 | static int ps3_sys_manager_send_attr(struct ps3_system_bus_device *dev, |
fde5efd0 GL |
271 | enum ps3_sys_manager_attr attr) |
272 | { | |
66c63b84 | 273 | struct ps3_sys_manager_header header; |
fde5efd0 GL |
274 | struct { |
275 | u8 version; | |
276 | u8 reserved_1[3]; | |
277 | u32 attribute; | |
278 | } payload; | |
279 | ||
280 | BUILD_BUG_ON(sizeof(payload) != 8); | |
281 | ||
282 | dev_dbg(&dev->core, "%s:%d: %xh\n", __func__, __LINE__, attr); | |
283 | ||
66c63b84 GL |
284 | memset(&header, 0, sizeof(header)); |
285 | header.version = 1; | |
286 | header.size = 16; | |
287 | header.payload_size = 16; | |
288 | header.service_id = PS3_SM_SERVICE_ID_SET_ATTR; | |
289 | ||
fde5efd0 GL |
290 | memset(&payload, 0, sizeof(payload)); |
291 | payload.version = 1; | |
292 | payload.attribute = attr; | |
293 | ||
294 | return ps3_sys_manager_write(dev, &header, &payload); | |
295 | } | |
296 | ||
297 | /** | |
298 | * ps3_sys_manager_send_next_op - Send a 'set next op' to the system manager. | |
299 | * | |
300 | * Tell the system manager what to do after this lpar is destroyed. | |
301 | */ | |
302 | ||
66c63b84 | 303 | static int ps3_sys_manager_send_next_op(struct ps3_system_bus_device *dev, |
fde5efd0 GL |
304 | enum ps3_sys_manager_next_op op, |
305 | enum ps3_sys_manager_wake_source wake_source) | |
306 | { | |
66c63b84 | 307 | struct ps3_sys_manager_header header; |
fde5efd0 GL |
308 | struct { |
309 | u8 version; | |
310 | u8 type; | |
311 | u8 gos_id; | |
312 | u8 reserved_1; | |
313 | u32 wake_source; | |
314 | u8 reserved_2[8]; | |
315 | } payload; | |
316 | ||
317 | BUILD_BUG_ON(sizeof(payload) != 16); | |
318 | ||
319 | dev_dbg(&dev->core, "%s:%d: (%xh)\n", __func__, __LINE__, op); | |
320 | ||
66c63b84 GL |
321 | memset(&header, 0, sizeof(header)); |
322 | header.version = 1; | |
323 | header.size = 16; | |
324 | header.payload_size = 16; | |
325 | header.service_id = PS3_SM_SERVICE_ID_SET_NEXT_OP; | |
326 | ||
fde5efd0 GL |
327 | memset(&payload, 0, sizeof(payload)); |
328 | payload.version = 3; | |
329 | payload.type = op; | |
330 | payload.gos_id = 3; /* other os */ | |
331 | payload.wake_source = wake_source; | |
332 | ||
333 | return ps3_sys_manager_write(dev, &header, &payload); | |
334 | } | |
335 | ||
336 | /** | |
337 | * ps3_sys_manager_send_request_shutdown - Send 'request' to the system manager. | |
338 | * | |
339 | * The guest sends this message to request an operation or action of the system | |
340 | * manager. The reply is a command message from the system manager. In the | |
341 | * command handler the guest performs the requested operation. The result of | |
342 | * the command is then communicated back to the system manager with a response | |
343 | * message. | |
344 | * | |
66c63b84 | 345 | * Currently, the only supported request is the 'shutdown self' request. |
fde5efd0 GL |
346 | */ |
347 | ||
66c63b84 GL |
348 | static int ps3_sys_manager_send_request_shutdown( |
349 | struct ps3_system_bus_device *dev) | |
fde5efd0 | 350 | { |
66c63b84 | 351 | struct ps3_sys_manager_header header; |
fde5efd0 GL |
352 | struct { |
353 | u8 version; | |
354 | u8 type; | |
355 | u8 gos_id; | |
356 | u8 reserved_1[13]; | |
66c63b84 | 357 | } payload; |
fde5efd0 GL |
358 | |
359 | BUILD_BUG_ON(sizeof(payload) != 16); | |
360 | ||
361 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
362 | ||
66c63b84 GL |
363 | memset(&header, 0, sizeof(header)); |
364 | header.version = 1; | |
365 | header.size = 16; | |
366 | header.payload_size = 16; | |
367 | header.service_id = PS3_SM_SERVICE_ID_REQUEST; | |
368 | ||
369 | memset(&payload, 0, sizeof(payload)); | |
370 | payload.version = 1; | |
371 | payload.type = 1; /* shutdown */ | |
372 | payload.gos_id = 0; /* self */ | |
373 | ||
fde5efd0 GL |
374 | return ps3_sys_manager_write(dev, &header, &payload); |
375 | } | |
376 | ||
377 | /** | |
378 | * ps3_sys_manager_send_response - Send a 'response' to the system manager. | |
379 | * @status: zero = success, others fail. | |
380 | * | |
381 | * The guest sends this message to the system manager to acnowledge success or | |
382 | * failure of a command sent by the system manager. | |
383 | */ | |
384 | ||
66c63b84 | 385 | static int ps3_sys_manager_send_response(struct ps3_system_bus_device *dev, |
fde5efd0 GL |
386 | u64 status) |
387 | { | |
66c63b84 | 388 | struct ps3_sys_manager_header header; |
fde5efd0 GL |
389 | struct { |
390 | u8 version; | |
391 | u8 reserved_1[3]; | |
392 | u8 status; | |
393 | u8 reserved_2[11]; | |
394 | } payload; | |
395 | ||
396 | BUILD_BUG_ON(sizeof(payload) != 16); | |
397 | ||
398 | dev_dbg(&dev->core, "%s:%d: (%s)\n", __func__, __LINE__, | |
399 | (status ? "nak" : "ack")); | |
400 | ||
66c63b84 GL |
401 | memset(&header, 0, sizeof(header)); |
402 | header.version = 1; | |
403 | header.size = 16; | |
404 | header.payload_size = 16; | |
405 | header.service_id = PS3_SM_SERVICE_ID_RESPONSE; | |
406 | ||
fde5efd0 GL |
407 | memset(&payload, 0, sizeof(payload)); |
408 | payload.version = 1; | |
409 | payload.status = status; | |
410 | ||
411 | return ps3_sys_manager_write(dev, &header, &payload); | |
412 | } | |
413 | ||
414 | /** | |
415 | * ps3_sys_manager_handle_event - Second stage event msg handler. | |
416 | * | |
417 | */ | |
418 | ||
66c63b84 | 419 | static int ps3_sys_manager_handle_event(struct ps3_system_bus_device *dev) |
fde5efd0 GL |
420 | { |
421 | int result; | |
422 | struct { | |
423 | u8 version; | |
424 | u8 type; | |
425 | u8 reserved_1[2]; | |
426 | u32 value; | |
427 | u8 reserved_2[8]; | |
428 | } event; | |
429 | ||
430 | BUILD_BUG_ON(sizeof(event) != 16); | |
431 | ||
432 | result = ps3_vuart_read(dev, &event, sizeof(event)); | |
66c63b84 | 433 | BUG_ON(result && "need to retry here"); |
fde5efd0 GL |
434 | |
435 | if (event.version != 1) { | |
436 | dev_dbg(&dev->core, "%s:%d: unsupported event version (%u)\n", | |
437 | __func__, __LINE__, event.version); | |
438 | return -EIO; | |
439 | } | |
440 | ||
441 | switch (event.type) { | |
442 | case PS3_SM_EVENT_POWER_PRESSED: | |
ea24608f GL |
443 | dev_dbg(&dev->core, "%s:%d: POWER_PRESSED (%s)\n", |
444 | __func__, __LINE__, | |
445 | (event.value == PS3_SM_BUTTON_EVENT_SOFT ? "soft" | |
446 | : "hard")); | |
66c63b84 GL |
447 | ps3_sm_force_power_off = 1; |
448 | /* | |
449 | * A memory barrier is use here to sync memory since | |
450 | * ps3_sys_manager_final_restart() could be called on | |
451 | * another cpu. | |
452 | */ | |
453 | wmb(); | |
454 | kill_cad_pid(SIGINT, 1); /* ctrl_alt_del */ | |
fde5efd0 GL |
455 | break; |
456 | case PS3_SM_EVENT_POWER_RELEASED: | |
457 | dev_dbg(&dev->core, "%s:%d: POWER_RELEASED (%u ms)\n", | |
458 | __func__, __LINE__, event.value); | |
66c63b84 GL |
459 | break; |
460 | case PS3_SM_EVENT_RESET_PRESSED: | |
ea24608f GL |
461 | dev_dbg(&dev->core, "%s:%d: RESET_PRESSED (%s)\n", |
462 | __func__, __LINE__, | |
463 | (event.value == PS3_SM_BUTTON_EVENT_SOFT ? "soft" | |
464 | : "hard")); | |
66c63b84 GL |
465 | ps3_sm_force_power_off = 0; |
466 | /* | |
467 | * A memory barrier is use here to sync memory since | |
468 | * ps3_sys_manager_final_restart() could be called on | |
469 | * another cpu. | |
470 | */ | |
471 | wmb(); | |
472 | kill_cad_pid(SIGINT, 1); /* ctrl_alt_del */ | |
473 | break; | |
474 | case PS3_SM_EVENT_RESET_RELEASED: | |
475 | dev_dbg(&dev->core, "%s:%d: RESET_RELEASED (%u ms)\n", | |
476 | __func__, __LINE__, event.value); | |
fde5efd0 GL |
477 | break; |
478 | case PS3_SM_EVENT_THERMAL_ALERT: | |
479 | dev_dbg(&dev->core, "%s:%d: THERMAL_ALERT (zone %u)\n", | |
480 | __func__, __LINE__, event.value); | |
eff56c92 | 481 | pr_info("PS3 Thermal Alert Zone %u\n", event.value); |
fde5efd0 GL |
482 | break; |
483 | case PS3_SM_EVENT_THERMAL_CLEARED: | |
484 | dev_dbg(&dev->core, "%s:%d: THERMAL_CLEARED (zone %u)\n", | |
485 | __func__, __LINE__, event.value); | |
486 | break; | |
487 | default: | |
488 | dev_dbg(&dev->core, "%s:%d: unknown event (%u)\n", | |
489 | __func__, __LINE__, event.type); | |
490 | return -EIO; | |
491 | } | |
492 | ||
493 | return 0; | |
494 | } | |
495 | /** | |
496 | * ps3_sys_manager_handle_cmd - Second stage command msg handler. | |
497 | * | |
498 | * The system manager sends this in reply to a 'request' message from the guest. | |
499 | */ | |
500 | ||
66c63b84 | 501 | static int ps3_sys_manager_handle_cmd(struct ps3_system_bus_device *dev) |
fde5efd0 GL |
502 | { |
503 | int result; | |
504 | struct { | |
505 | u8 version; | |
506 | u8 type; | |
507 | u8 reserved_1[14]; | |
508 | } cmd; | |
509 | ||
510 | BUILD_BUG_ON(sizeof(cmd) != 16); | |
511 | ||
512 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
513 | ||
514 | result = ps3_vuart_read(dev, &cmd, sizeof(cmd)); | |
66c63b84 | 515 | BUG_ON(result && "need to retry here"); |
fde5efd0 | 516 | |
eff56c92 | 517 | if (result) |
fde5efd0 GL |
518 | return result; |
519 | ||
520 | if (cmd.version != 1) { | |
521 | dev_dbg(&dev->core, "%s:%d: unsupported cmd version (%u)\n", | |
522 | __func__, __LINE__, cmd.version); | |
523 | return -EIO; | |
524 | } | |
525 | ||
526 | if (cmd.type != PS3_SM_CMD_SHUTDOWN) { | |
527 | dev_dbg(&dev->core, "%s:%d: unknown cmd (%u)\n", | |
528 | __func__, __LINE__, cmd.type); | |
529 | return -EIO; | |
530 | } | |
531 | ||
532 | ps3_sys_manager_send_response(dev, 0); | |
533 | return 0; | |
534 | } | |
535 | ||
536 | /** | |
537 | * ps3_sys_manager_handle_msg - First stage msg handler. | |
538 | * | |
66c63b84 | 539 | * Can be called directly to manually poll vuart and pump message handler. |
fde5efd0 GL |
540 | */ |
541 | ||
66c63b84 | 542 | static int ps3_sys_manager_handle_msg(struct ps3_system_bus_device *dev) |
fde5efd0 GL |
543 | { |
544 | int result; | |
545 | struct ps3_sys_manager_header header; | |
546 | ||
547 | result = ps3_vuart_read(dev, &header, | |
548 | sizeof(struct ps3_sys_manager_header)); | |
549 | ||
eff56c92 | 550 | if (result) |
fde5efd0 GL |
551 | return result; |
552 | ||
553 | if (header.version != 1) { | |
554 | dev_dbg(&dev->core, "%s:%d: unsupported header version (%u)\n", | |
555 | __func__, __LINE__, header.version); | |
66c63b84 | 556 | dump_sm_header(&header); |
fde5efd0 GL |
557 | goto fail_header; |
558 | } | |
559 | ||
560 | BUILD_BUG_ON(sizeof(header) != 16); | |
66c63b84 GL |
561 | |
562 | if (header.size != 16 || (header.payload_size != 8 | |
563 | && header.payload_size != 16)) { | |
564 | dump_sm_header(&header); | |
565 | BUG(); | |
566 | } | |
fde5efd0 GL |
567 | |
568 | switch (header.service_id) { | |
569 | case PS3_SM_SERVICE_ID_EXTERN_EVENT: | |
570 | dev_dbg(&dev->core, "%s:%d: EVENT\n", __func__, __LINE__); | |
571 | return ps3_sys_manager_handle_event(dev); | |
572 | case PS3_SM_SERVICE_ID_COMMAND: | |
573 | dev_dbg(&dev->core, "%s:%d: COMMAND\n", __func__, __LINE__); | |
574 | return ps3_sys_manager_handle_cmd(dev); | |
66c63b84 GL |
575 | case PS3_SM_SERVICE_ID_REQUEST_ERROR: |
576 | dev_dbg(&dev->core, "%s:%d: REQUEST_ERROR\n", __func__, | |
577 | __LINE__); | |
578 | dump_sm_header(&header); | |
579 | break; | |
fde5efd0 GL |
580 | default: |
581 | dev_dbg(&dev->core, "%s:%d: unknown service_id (%u)\n", | |
582 | __func__, __LINE__, header.service_id); | |
583 | break; | |
584 | } | |
585 | goto fail_id; | |
586 | ||
587 | fail_header: | |
588 | ps3_vuart_clear_rx_bytes(dev, 0); | |
589 | return -EIO; | |
590 | fail_id: | |
591 | ps3_vuart_clear_rx_bytes(dev, header.payload_size); | |
592 | return -EIO; | |
593 | } | |
594 | ||
ca052f79 GU |
595 | static void ps3_sys_manager_fin(struct ps3_system_bus_device *dev) |
596 | { | |
597 | ps3_sys_manager_send_request_shutdown(dev); | |
598 | ||
599 | pr_emerg("System Halted, OK to turn off power\n"); | |
600 | ||
601 | while (ps3_sys_manager_handle_msg(dev)) { | |
602 | /* pause until next DEC interrupt */ | |
603 | lv1_pause(0); | |
604 | } | |
605 | ||
606 | while (1) { | |
607 | /* pause, ignoring DEC interrupt */ | |
608 | lv1_pause(1); | |
609 | } | |
610 | } | |
611 | ||
fde5efd0 | 612 | /** |
66c63b84 | 613 | * ps3_sys_manager_final_power_off - The final platform machine_power_off routine. |
fde5efd0 | 614 | * |
66c63b84 | 615 | * This routine never returns. The routine disables asynchronous vuart reads |
fde5efd0 GL |
616 | * then spins calling ps3_sys_manager_handle_msg() to receive and acknowledge |
617 | * the shutdown command sent from the system manager. Soon after the | |
618 | * acknowledgement is sent the lpar is destroyed by the HV. This routine | |
66c63b84 GL |
619 | * should only be called from ps3_power_off() through |
620 | * ps3_sys_manager_ops.power_off. | |
fde5efd0 GL |
621 | */ |
622 | ||
66c63b84 | 623 | static void ps3_sys_manager_final_power_off(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 | ||
629 | ps3_vuart_cancel_async(dev); | |
630 | ||
66c63b84 | 631 | ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_SHUTDOWN, |
1c43d265 | 632 | user_wake_sources); |
fde5efd0 | 633 | |
ca052f79 | 634 | ps3_sys_manager_fin(dev); |
fde5efd0 GL |
635 | } |
636 | ||
637 | /** | |
66c63b84 | 638 | * ps3_sys_manager_final_restart - The final platform machine_restart routine. |
fde5efd0 | 639 | * |
66c63b84 | 640 | * This routine never returns. The routine disables asynchronous vuart reads |
fde5efd0 GL |
641 | * then spins calling ps3_sys_manager_handle_msg() to receive and acknowledge |
642 | * the shutdown command sent from the system manager. Soon after the | |
643 | * acknowledgement is sent the lpar is destroyed by the HV. This routine | |
66c63b84 | 644 | * should only be called from ps3_restart() through ps3_sys_manager_ops.restart. |
fde5efd0 GL |
645 | */ |
646 | ||
66c63b84 | 647 | static void ps3_sys_manager_final_restart(struct ps3_system_bus_device *dev) |
fde5efd0 | 648 | { |
66c63b84 | 649 | BUG_ON(!dev); |
fde5efd0 GL |
650 | |
651 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
652 | ||
66c63b84 GL |
653 | /* Check if we got here via a power button event. */ |
654 | ||
655 | if (ps3_sm_force_power_off) { | |
656 | dev_dbg(&dev->core, "%s:%d: forcing poweroff\n", | |
657 | __func__, __LINE__); | |
658 | ps3_sys_manager_final_power_off(dev); | |
659 | } | |
660 | ||
fde5efd0 GL |
661 | ps3_vuart_cancel_async(dev); |
662 | ||
66c63b84 | 663 | ps3_sys_manager_send_attr(dev, 0); |
75ffe88d | 664 | ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_REBOOT, |
1c43d265 | 665 | user_wake_sources); |
fde5efd0 | 666 | |
ca052f79 | 667 | ps3_sys_manager_fin(dev); |
fde5efd0 GL |
668 | } |
669 | ||
1c43d265 GL |
670 | /** |
671 | * ps3_sys_manager_get_wol - Get wake-on-lan setting. | |
672 | */ | |
673 | ||
674 | int ps3_sys_manager_get_wol(void) | |
675 | { | |
676 | pr_debug("%s:%d\n", __func__, __LINE__); | |
677 | ||
678 | return (user_wake_sources & PS3_SM_WAKE_W_O_L) != 0; | |
679 | } | |
680 | EXPORT_SYMBOL_GPL(ps3_sys_manager_get_wol); | |
681 | ||
682 | /** | |
683 | * ps3_sys_manager_set_wol - Set wake-on-lan setting. | |
684 | */ | |
685 | ||
686 | void ps3_sys_manager_set_wol(int state) | |
687 | { | |
688 | static DEFINE_MUTEX(mutex); | |
689 | ||
690 | mutex_lock(&mutex); | |
691 | ||
692 | pr_debug("%s:%d: %d\n", __func__, __LINE__, state); | |
693 | ||
694 | if (state) | |
695 | user_wake_sources |= PS3_SM_WAKE_W_O_L; | |
696 | else | |
697 | user_wake_sources &= ~PS3_SM_WAKE_W_O_L; | |
698 | mutex_unlock(&mutex); | |
699 | } | |
700 | EXPORT_SYMBOL_GPL(ps3_sys_manager_set_wol); | |
701 | ||
66c63b84 GL |
702 | /** |
703 | * ps3_sys_manager_work - Asynchronous read handler. | |
704 | * | |
705 | * Signaled when PS3_SM_RX_MSG_LEN_MIN bytes arrive at the vuart port. | |
706 | */ | |
707 | ||
708 | static void ps3_sys_manager_work(struct ps3_system_bus_device *dev) | |
709 | { | |
710 | ps3_sys_manager_handle_msg(dev); | |
711 | ps3_vuart_read_async(dev, PS3_SM_RX_MSG_LEN_MIN); | |
712 | } | |
713 | ||
714 | static int ps3_sys_manager_probe(struct ps3_system_bus_device *dev) | |
fde5efd0 GL |
715 | { |
716 | int result; | |
66c63b84 | 717 | struct ps3_sys_manager_ops ops; |
fde5efd0 GL |
718 | |
719 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
720 | ||
66c63b84 GL |
721 | ops.power_off = ps3_sys_manager_final_power_off; |
722 | ops.restart = ps3_sys_manager_final_restart; | |
723 | ops.dev = dev; | |
724 | ||
725 | /* ps3_sys_manager_register_ops copies ops. */ | |
726 | ||
727 | ps3_sys_manager_register_ops(&ops); | |
fde5efd0 GL |
728 | |
729 | result = ps3_sys_manager_send_attr(dev, PS3_SM_ATTR_ALL); | |
730 | BUG_ON(result); | |
731 | ||
66c63b84 | 732 | result = ps3_vuart_read_async(dev, PS3_SM_RX_MSG_LEN_MIN); |
fde5efd0 GL |
733 | BUG_ON(result); |
734 | ||
735 | return result; | |
736 | } | |
737 | ||
66c63b84 GL |
738 | static int ps3_sys_manager_remove(struct ps3_system_bus_device *dev) |
739 | { | |
740 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
741 | return 0; | |
742 | } | |
743 | ||
744 | static void ps3_sys_manager_shutdown(struct ps3_system_bus_device *dev) | |
745 | { | |
746 | dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); | |
747 | } | |
748 | ||
fde5efd0 | 749 | static struct ps3_vuart_port_driver ps3_sys_manager = { |
66c63b84 GL |
750 | .core.match_id = PS3_MATCH_ID_SYSTEM_MANAGER, |
751 | .core.core.name = "ps3_sys_manager", | |
fde5efd0 | 752 | .probe = ps3_sys_manager_probe, |
66c63b84 GL |
753 | .remove = ps3_sys_manager_remove, |
754 | .shutdown = ps3_sys_manager_shutdown, | |
755 | .work = ps3_sys_manager_work, | |
fde5efd0 GL |
756 | }; |
757 | ||
758 | static int __init ps3_sys_manager_init(void) | |
759 | { | |
ef596c69 GU |
760 | if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) |
761 | return -ENODEV; | |
762 | ||
fde5efd0 GL |
763 | return ps3_vuart_port_driver_register(&ps3_sys_manager); |
764 | } | |
765 | ||
766 | module_init(ps3_sys_manager_init); | |
66c63b84 GL |
767 | /* Module remove not supported. */ |
768 | ||
50dad902 GL |
769 | MODULE_AUTHOR("Sony Corporation"); |
770 | MODULE_LICENSE("GPL v2"); | |
771 | MODULE_DESCRIPTION("PS3 System Manager"); | |
66c63b84 | 772 | MODULE_ALIAS(PS3_MODULE_ALIAS_SYSTEM_MANAGER); |