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756 lines
20 KiB
756 lines
20 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* PS3 System Manager. |
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* |
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* Copyright (C) 2007 Sony Computer Entertainment Inc. |
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* Copyright 2007 Sony Corp. |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <linux/workqueue.h> |
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#include <linux/reboot.h> |
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#include <linux/sched/signal.h> |
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#include <asm/firmware.h> |
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#include <asm/lv1call.h> |
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#include <asm/ps3.h> |
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#include "vuart.h" |
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/** |
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* ps3_sys_manager - PS3 system manager driver. |
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* |
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* The system manager provides an asynchronous system event notification |
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* mechanism for reporting events like thermal alert and button presses to |
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* guests. It also provides support to control system shutdown and startup. |
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* |
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* The actual system manager is implemented as an application running in the |
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* system policy module in lpar_1. Guests communicate with the system manager |
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* through port 2 of the vuart using a simple packet message protocol. |
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* Messages are comprised of a fixed field header followed by a message |
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* specific payload. |
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*/ |
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/** |
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* struct ps3_sys_manager_header - System manager message header. |
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* @version: Header version, currently 1. |
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* @size: Header size in bytes, currently 16. |
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* @payload_size: Message payload size in bytes. |
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* @service_id: Message type, one of enum ps3_sys_manager_service_id. |
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* @request_tag: Unique number to identify reply. |
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*/ |
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struct ps3_sys_manager_header { |
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/* version 1 */ |
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u8 version; |
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u8 size; |
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u16 reserved_1; |
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u32 payload_size; |
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u16 service_id; |
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u16 reserved_2; |
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u32 request_tag; |
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}; |
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#define dump_sm_header(_h) _dump_sm_header(_h, __func__, __LINE__) |
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static void __maybe_unused _dump_sm_header( |
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const struct ps3_sys_manager_header *h, const char *func, int line) |
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{ |
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pr_debug("%s:%d: version: %xh\n", func, line, h->version); |
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pr_debug("%s:%d: size: %xh\n", func, line, h->size); |
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pr_debug("%s:%d: payload_size: %xh\n", func, line, h->payload_size); |
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pr_debug("%s:%d: service_id: %xh\n", func, line, h->service_id); |
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pr_debug("%s:%d: request_tag: %xh\n", func, line, h->request_tag); |
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} |
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/** |
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* @PS3_SM_RX_MSG_LEN_MIN - Shortest received message length. |
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* @PS3_SM_RX_MSG_LEN_MAX - Longest received message length. |
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* |
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* Currently all messages received from the system manager are either |
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* (16 bytes header + 8 bytes payload = 24 bytes) or (16 bytes header |
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* + 16 bytes payload = 32 bytes). This knowledge is used to simplify |
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* the logic. |
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*/ |
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enum { |
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PS3_SM_RX_MSG_LEN_MIN = 24, |
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PS3_SM_RX_MSG_LEN_MAX = 32, |
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}; |
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/** |
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* enum ps3_sys_manager_service_id - Message header service_id. |
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* @PS3_SM_SERVICE_ID_REQUEST: guest --> sys_manager. |
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* @PS3_SM_SERVICE_ID_REQUEST_ERROR: guest <-- sys_manager. |
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* @PS3_SM_SERVICE_ID_COMMAND: guest <-- sys_manager. |
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* @PS3_SM_SERVICE_ID_RESPONSE: guest --> sys_manager. |
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* @PS3_SM_SERVICE_ID_SET_ATTR: guest --> sys_manager. |
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* @PS3_SM_SERVICE_ID_EXTERN_EVENT: guest <-- sys_manager. |
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* @PS3_SM_SERVICE_ID_SET_NEXT_OP: guest --> sys_manager. |
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* |
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* PS3_SM_SERVICE_ID_REQUEST_ERROR is returned for invalid data values in a |
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* a PS3_SM_SERVICE_ID_REQUEST message. It also seems to be returned when |
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* a REQUEST message is sent at the wrong time. |
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*/ |
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enum ps3_sys_manager_service_id { |
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/* version 1 */ |
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PS3_SM_SERVICE_ID_REQUEST = 1, |
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PS3_SM_SERVICE_ID_RESPONSE = 2, |
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PS3_SM_SERVICE_ID_COMMAND = 3, |
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PS3_SM_SERVICE_ID_EXTERN_EVENT = 4, |
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PS3_SM_SERVICE_ID_SET_NEXT_OP = 5, |
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PS3_SM_SERVICE_ID_REQUEST_ERROR = 6, |
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PS3_SM_SERVICE_ID_SET_ATTR = 8, |
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}; |
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/** |
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* enum ps3_sys_manager_attr - Notification attribute (bit position mask). |
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* @PS3_SM_ATTR_POWER: Power button. |
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* @PS3_SM_ATTR_RESET: Reset button, not available on retail console. |
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* @PS3_SM_ATTR_THERMAL: System thermal alert. |
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* @PS3_SM_ATTR_CONTROLLER: Remote controller event. |
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* @PS3_SM_ATTR_ALL: Logical OR of all. |
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* |
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* The guest tells the system manager which events it is interested in receiving |
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* notice of by sending the system manager a logical OR of notification |
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* attributes via the ps3_sys_manager_send_attr() routine. |
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*/ |
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enum ps3_sys_manager_attr { |
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/* version 1 */ |
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PS3_SM_ATTR_POWER = 1, |
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PS3_SM_ATTR_RESET = 2, |
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PS3_SM_ATTR_THERMAL = 4, |
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PS3_SM_ATTR_CONTROLLER = 8, /* bogus? */ |
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PS3_SM_ATTR_ALL = 0x0f, |
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}; |
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/** |
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* enum ps3_sys_manager_event - External event type, reported by system manager. |
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* @PS3_SM_EVENT_POWER_PRESSED: payload.value = |
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* enum ps3_sys_manager_button_event. |
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* @PS3_SM_EVENT_POWER_RELEASED: payload.value = time pressed in millisec. |
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* @PS3_SM_EVENT_RESET_PRESSED: payload.value = |
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* enum ps3_sys_manager_button_event. |
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* @PS3_SM_EVENT_RESET_RELEASED: payload.value = time pressed in millisec. |
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* @PS3_SM_EVENT_THERMAL_ALERT: payload.value = thermal zone id. |
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* @PS3_SM_EVENT_THERMAL_CLEARED: payload.value = thermal zone id. |
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*/ |
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enum ps3_sys_manager_event { |
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/* version 1 */ |
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PS3_SM_EVENT_POWER_PRESSED = 3, |
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PS3_SM_EVENT_POWER_RELEASED = 4, |
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PS3_SM_EVENT_RESET_PRESSED = 5, |
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PS3_SM_EVENT_RESET_RELEASED = 6, |
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PS3_SM_EVENT_THERMAL_ALERT = 7, |
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PS3_SM_EVENT_THERMAL_CLEARED = 8, |
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/* no info on controller events */ |
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}; |
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/** |
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* enum ps3_sys_manager_button_event - Button event payload values. |
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* @PS3_SM_BUTTON_EVENT_HARD: Hardware generated event. |
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* @PS3_SM_BUTTON_EVENT_SOFT: Software generated event. |
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*/ |
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enum ps3_sys_manager_button_event { |
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PS3_SM_BUTTON_EVENT_HARD = 0, |
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PS3_SM_BUTTON_EVENT_SOFT = 1, |
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}; |
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/** |
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* enum ps3_sys_manager_next_op - Operation to perform after lpar is destroyed. |
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*/ |
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enum ps3_sys_manager_next_op { |
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/* version 3 */ |
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PS3_SM_NEXT_OP_SYS_SHUTDOWN = 1, |
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PS3_SM_NEXT_OP_SYS_REBOOT = 2, |
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PS3_SM_NEXT_OP_LPAR_REBOOT = 0x82, |
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}; |
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/** |
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* enum ps3_sys_manager_wake_source - Next-op wakeup source (bit position mask). |
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* @PS3_SM_WAKE_DEFAULT: Disk insert, power button, eject button. |
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* @PS3_SM_WAKE_W_O_L: Ether or wireless LAN. |
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* @PS3_SM_WAKE_P_O_R: Power on reset. |
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* |
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* Additional wakeup sources when specifying PS3_SM_NEXT_OP_SYS_SHUTDOWN. |
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* The system will always wake from the PS3_SM_WAKE_DEFAULT sources. |
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* Sources listed here are the only ones available to guests in the |
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* other-os lpar. |
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*/ |
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enum ps3_sys_manager_wake_source { |
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/* version 3 */ |
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PS3_SM_WAKE_DEFAULT = 0, |
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PS3_SM_WAKE_W_O_L = 0x00000400, |
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PS3_SM_WAKE_P_O_R = 0x80000000, |
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}; |
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/** |
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* user_wake_sources - User specified wakeup sources. |
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* |
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* Logical OR of enum ps3_sys_manager_wake_source types. |
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*/ |
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static u32 user_wake_sources = PS3_SM_WAKE_DEFAULT; |
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/** |
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* enum ps3_sys_manager_cmd - Command from system manager to guest. |
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* |
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* The guest completes the actions needed, then acks or naks the command via |
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* ps3_sys_manager_send_response(). In the case of @PS3_SM_CMD_SHUTDOWN, |
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* the guest must be fully prepared for a system poweroff prior to acking the |
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* command. |
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*/ |
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enum ps3_sys_manager_cmd { |
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/* version 1 */ |
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PS3_SM_CMD_SHUTDOWN = 1, /* shutdown guest OS */ |
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}; |
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/** |
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* ps3_sm_force_power_off - Poweroff helper. |
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* |
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* A global variable used to force a poweroff when the power button has |
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* been pressed irrespective of how init handles the ctrl_alt_del signal. |
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* |
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*/ |
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static unsigned int ps3_sm_force_power_off; |
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/** |
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* ps3_sys_manager_write - Helper to write a two part message to the vuart. |
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* |
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*/ |
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static int ps3_sys_manager_write(struct ps3_system_bus_device *dev, |
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const struct ps3_sys_manager_header *header, const void *payload) |
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{ |
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int result; |
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BUG_ON(header->version != 1); |
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BUG_ON(header->size != 16); |
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BUG_ON(header->payload_size != 8 && header->payload_size != 16); |
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BUG_ON(header->service_id > 8); |
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result = ps3_vuart_write(dev, header, |
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sizeof(struct ps3_sys_manager_header)); |
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if (!result) |
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result = ps3_vuart_write(dev, payload, header->payload_size); |
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return result; |
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} |
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/** |
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* ps3_sys_manager_send_attr - Send a 'set attribute' to the system manager. |
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* |
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*/ |
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static int ps3_sys_manager_send_attr(struct ps3_system_bus_device *dev, |
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enum ps3_sys_manager_attr attr) |
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{ |
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struct ps3_sys_manager_header header; |
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struct { |
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u8 version; |
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u8 reserved_1[3]; |
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u32 attribute; |
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} payload; |
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BUILD_BUG_ON(sizeof(payload) != 8); |
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dev_dbg(&dev->core, "%s:%d: %xh\n", __func__, __LINE__, attr); |
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memset(&header, 0, sizeof(header)); |
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header.version = 1; |
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header.size = 16; |
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header.payload_size = 16; |
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header.service_id = PS3_SM_SERVICE_ID_SET_ATTR; |
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memset(&payload, 0, sizeof(payload)); |
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payload.version = 1; |
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payload.attribute = attr; |
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return ps3_sys_manager_write(dev, &header, &payload); |
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} |
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/** |
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* ps3_sys_manager_send_next_op - Send a 'set next op' to the system manager. |
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* |
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* Tell the system manager what to do after this lpar is destroyed. |
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*/ |
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static int ps3_sys_manager_send_next_op(struct ps3_system_bus_device *dev, |
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enum ps3_sys_manager_next_op op, |
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enum ps3_sys_manager_wake_source wake_source) |
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{ |
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struct ps3_sys_manager_header header; |
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struct { |
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u8 version; |
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u8 type; |
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u8 gos_id; |
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u8 reserved_1; |
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u32 wake_source; |
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u8 reserved_2[8]; |
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} payload; |
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BUILD_BUG_ON(sizeof(payload) != 16); |
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dev_dbg(&dev->core, "%s:%d: (%xh)\n", __func__, __LINE__, op); |
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memset(&header, 0, sizeof(header)); |
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header.version = 1; |
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header.size = 16; |
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header.payload_size = 16; |
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header.service_id = PS3_SM_SERVICE_ID_SET_NEXT_OP; |
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memset(&payload, 0, sizeof(payload)); |
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payload.version = 3; |
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payload.type = op; |
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payload.gos_id = 3; /* other os */ |
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payload.wake_source = wake_source; |
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return ps3_sys_manager_write(dev, &header, &payload); |
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} |
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/** |
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* ps3_sys_manager_send_request_shutdown - Send 'request' to the system manager. |
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* |
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* The guest sends this message to request an operation or action of the system |
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* manager. The reply is a command message from the system manager. In the |
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* command handler the guest performs the requested operation. The result of |
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* the command is then communicated back to the system manager with a response |
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* message. |
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* |
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* Currently, the only supported request is the 'shutdown self' request. |
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*/ |
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static int ps3_sys_manager_send_request_shutdown( |
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struct ps3_system_bus_device *dev) |
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{ |
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struct ps3_sys_manager_header header; |
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struct { |
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u8 version; |
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u8 type; |
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u8 gos_id; |
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u8 reserved_1[13]; |
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} payload; |
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BUILD_BUG_ON(sizeof(payload) != 16); |
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dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); |
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memset(&header, 0, sizeof(header)); |
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header.version = 1; |
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header.size = 16; |
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header.payload_size = 16; |
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header.service_id = PS3_SM_SERVICE_ID_REQUEST; |
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memset(&payload, 0, sizeof(payload)); |
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payload.version = 1; |
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payload.type = 1; /* shutdown */ |
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payload.gos_id = 0; /* self */ |
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return ps3_sys_manager_write(dev, &header, &payload); |
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} |
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/** |
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* ps3_sys_manager_send_response - Send a 'response' to the system manager. |
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* @status: zero = success, others fail. |
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* |
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* The guest sends this message to the system manager to acnowledge success or |
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* failure of a command sent by the system manager. |
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*/ |
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static int ps3_sys_manager_send_response(struct ps3_system_bus_device *dev, |
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u64 status) |
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{ |
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struct ps3_sys_manager_header header; |
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struct { |
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u8 version; |
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u8 reserved_1[3]; |
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u8 status; |
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u8 reserved_2[11]; |
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} payload; |
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BUILD_BUG_ON(sizeof(payload) != 16); |
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dev_dbg(&dev->core, "%s:%d: (%s)\n", __func__, __LINE__, |
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(status ? "nak" : "ack")); |
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memset(&header, 0, sizeof(header)); |
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header.version = 1; |
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header.size = 16; |
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header.payload_size = 16; |
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header.service_id = PS3_SM_SERVICE_ID_RESPONSE; |
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memset(&payload, 0, sizeof(payload)); |
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payload.version = 1; |
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payload.status = status; |
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return ps3_sys_manager_write(dev, &header, &payload); |
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} |
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/** |
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* ps3_sys_manager_handle_event - Second stage event msg handler. |
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* |
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*/ |
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static int ps3_sys_manager_handle_event(struct ps3_system_bus_device *dev) |
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{ |
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int result; |
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struct { |
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u8 version; |
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u8 type; |
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u8 reserved_1[2]; |
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u32 value; |
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u8 reserved_2[8]; |
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} event; |
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BUILD_BUG_ON(sizeof(event) != 16); |
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result = ps3_vuart_read(dev, &event, sizeof(event)); |
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BUG_ON(result && "need to retry here"); |
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if (event.version != 1) { |
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dev_dbg(&dev->core, "%s:%d: unsupported event version (%u)\n", |
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__func__, __LINE__, event.version); |
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return -EIO; |
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} |
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switch (event.type) { |
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case PS3_SM_EVENT_POWER_PRESSED: |
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dev_dbg(&dev->core, "%s:%d: POWER_PRESSED (%s)\n", |
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__func__, __LINE__, |
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(event.value == PS3_SM_BUTTON_EVENT_SOFT ? "soft" |
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: "hard")); |
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ps3_sm_force_power_off = 1; |
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/* |
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* A memory barrier is use here to sync memory since |
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* ps3_sys_manager_final_restart() could be called on |
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* another cpu. |
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*/ |
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wmb(); |
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kill_cad_pid(SIGINT, 1); /* ctrl_alt_del */ |
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break; |
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case PS3_SM_EVENT_POWER_RELEASED: |
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dev_dbg(&dev->core, "%s:%d: POWER_RELEASED (%u ms)\n", |
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__func__, __LINE__, event.value); |
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break; |
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case PS3_SM_EVENT_RESET_PRESSED: |
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dev_dbg(&dev->core, "%s:%d: RESET_PRESSED (%s)\n", |
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__func__, __LINE__, |
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(event.value == PS3_SM_BUTTON_EVENT_SOFT ? "soft" |
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: "hard")); |
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ps3_sm_force_power_off = 0; |
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/* |
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* A memory barrier is use here to sync memory since |
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* ps3_sys_manager_final_restart() could be called on |
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* another cpu. |
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*/ |
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wmb(); |
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kill_cad_pid(SIGINT, 1); /* ctrl_alt_del */ |
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break; |
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case PS3_SM_EVENT_RESET_RELEASED: |
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dev_dbg(&dev->core, "%s:%d: RESET_RELEASED (%u ms)\n", |
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__func__, __LINE__, event.value); |
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break; |
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case PS3_SM_EVENT_THERMAL_ALERT: |
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dev_dbg(&dev->core, "%s:%d: THERMAL_ALERT (zone %u)\n", |
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__func__, __LINE__, event.value); |
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pr_info("PS3 Thermal Alert Zone %u\n", event.value); |
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break; |
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case PS3_SM_EVENT_THERMAL_CLEARED: |
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dev_dbg(&dev->core, "%s:%d: THERMAL_CLEARED (zone %u)\n", |
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__func__, __LINE__, event.value); |
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break; |
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default: |
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dev_dbg(&dev->core, "%s:%d: unknown event (%u)\n", |
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__func__, __LINE__, event.type); |
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return -EIO; |
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} |
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return 0; |
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} |
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/** |
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* ps3_sys_manager_handle_cmd - Second stage command msg handler. |
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* |
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* The system manager sends this in reply to a 'request' message from the guest. |
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*/ |
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static int ps3_sys_manager_handle_cmd(struct ps3_system_bus_device *dev) |
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{ |
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int result; |
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struct { |
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u8 version; |
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u8 type; |
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u8 reserved_1[14]; |
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} cmd; |
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BUILD_BUG_ON(sizeof(cmd) != 16); |
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dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); |
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result = ps3_vuart_read(dev, &cmd, sizeof(cmd)); |
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BUG_ON(result && "need to retry here"); |
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if (result) |
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return result; |
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if (cmd.version != 1) { |
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dev_dbg(&dev->core, "%s:%d: unsupported cmd version (%u)\n", |
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__func__, __LINE__, cmd.version); |
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return -EIO; |
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} |
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if (cmd.type != PS3_SM_CMD_SHUTDOWN) { |
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dev_dbg(&dev->core, "%s:%d: unknown cmd (%u)\n", |
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__func__, __LINE__, cmd.type); |
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return -EIO; |
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} |
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ps3_sys_manager_send_response(dev, 0); |
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return 0; |
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} |
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/** |
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* ps3_sys_manager_handle_msg - First stage msg handler. |
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* |
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* Can be called directly to manually poll vuart and pump message handler. |
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*/ |
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|
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static int ps3_sys_manager_handle_msg(struct ps3_system_bus_device *dev) |
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{ |
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int result; |
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struct ps3_sys_manager_header header; |
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result = ps3_vuart_read(dev, &header, |
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sizeof(struct ps3_sys_manager_header)); |
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if (result) |
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return result; |
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if (header.version != 1) { |
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dev_dbg(&dev->core, "%s:%d: unsupported header version (%u)\n", |
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__func__, __LINE__, header.version); |
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dump_sm_header(&header); |
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goto fail_header; |
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} |
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BUILD_BUG_ON(sizeof(header) != 16); |
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|
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if (header.size != 16 || (header.payload_size != 8 |
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&& header.payload_size != 16)) { |
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dump_sm_header(&header); |
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BUG(); |
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} |
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switch (header.service_id) { |
|
case PS3_SM_SERVICE_ID_EXTERN_EVENT: |
|
dev_dbg(&dev->core, "%s:%d: EVENT\n", __func__, __LINE__); |
|
return ps3_sys_manager_handle_event(dev); |
|
case PS3_SM_SERVICE_ID_COMMAND: |
|
dev_dbg(&dev->core, "%s:%d: COMMAND\n", __func__, __LINE__); |
|
return ps3_sys_manager_handle_cmd(dev); |
|
case PS3_SM_SERVICE_ID_REQUEST_ERROR: |
|
dev_dbg(&dev->core, "%s:%d: REQUEST_ERROR\n", __func__, |
|
__LINE__); |
|
dump_sm_header(&header); |
|
break; |
|
default: |
|
dev_dbg(&dev->core, "%s:%d: unknown service_id (%u)\n", |
|
__func__, __LINE__, header.service_id); |
|
break; |
|
} |
|
goto fail_id; |
|
|
|
fail_header: |
|
ps3_vuart_clear_rx_bytes(dev, 0); |
|
return -EIO; |
|
fail_id: |
|
ps3_vuart_clear_rx_bytes(dev, header.payload_size); |
|
return -EIO; |
|
} |
|
|
|
static void ps3_sys_manager_fin(struct ps3_system_bus_device *dev) |
|
{ |
|
ps3_sys_manager_send_request_shutdown(dev); |
|
|
|
pr_emerg("System Halted, OK to turn off power\n"); |
|
|
|
while (ps3_sys_manager_handle_msg(dev)) { |
|
/* pause until next DEC interrupt */ |
|
lv1_pause(0); |
|
} |
|
|
|
while (1) { |
|
/* pause, ignoring DEC interrupt */ |
|
lv1_pause(1); |
|
} |
|
} |
|
|
|
/** |
|
* ps3_sys_manager_final_power_off - The final platform machine_power_off routine. |
|
* |
|
* This routine never returns. The routine disables asynchronous vuart reads |
|
* then spins calling ps3_sys_manager_handle_msg() to receive and acknowledge |
|
* the shutdown command sent from the system manager. Soon after the |
|
* acknowledgement is sent the lpar is destroyed by the HV. This routine |
|
* should only be called from ps3_power_off() through |
|
* ps3_sys_manager_ops.power_off. |
|
*/ |
|
|
|
static void ps3_sys_manager_final_power_off(struct ps3_system_bus_device *dev) |
|
{ |
|
BUG_ON(!dev); |
|
|
|
dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); |
|
|
|
ps3_vuart_cancel_async(dev); |
|
|
|
ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_SHUTDOWN, |
|
user_wake_sources); |
|
|
|
ps3_sys_manager_fin(dev); |
|
} |
|
|
|
/** |
|
* ps3_sys_manager_final_restart - The final platform machine_restart routine. |
|
* |
|
* This routine never returns. The routine disables asynchronous vuart reads |
|
* then spins calling ps3_sys_manager_handle_msg() to receive and acknowledge |
|
* the shutdown command sent from the system manager. Soon after the |
|
* acknowledgement is sent the lpar is destroyed by the HV. This routine |
|
* should only be called from ps3_restart() through ps3_sys_manager_ops.restart. |
|
*/ |
|
|
|
static void ps3_sys_manager_final_restart(struct ps3_system_bus_device *dev) |
|
{ |
|
BUG_ON(!dev); |
|
|
|
dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); |
|
|
|
/* Check if we got here via a power button event. */ |
|
|
|
if (ps3_sm_force_power_off) { |
|
dev_dbg(&dev->core, "%s:%d: forcing poweroff\n", |
|
__func__, __LINE__); |
|
ps3_sys_manager_final_power_off(dev); |
|
} |
|
|
|
ps3_vuart_cancel_async(dev); |
|
|
|
ps3_sys_manager_send_attr(dev, 0); |
|
ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_REBOOT, |
|
user_wake_sources); |
|
|
|
ps3_sys_manager_fin(dev); |
|
} |
|
|
|
/** |
|
* ps3_sys_manager_get_wol - Get wake-on-lan setting. |
|
*/ |
|
|
|
int ps3_sys_manager_get_wol(void) |
|
{ |
|
pr_debug("%s:%d\n", __func__, __LINE__); |
|
|
|
return (user_wake_sources & PS3_SM_WAKE_W_O_L) != 0; |
|
} |
|
EXPORT_SYMBOL_GPL(ps3_sys_manager_get_wol); |
|
|
|
/** |
|
* ps3_sys_manager_set_wol - Set wake-on-lan setting. |
|
*/ |
|
|
|
void ps3_sys_manager_set_wol(int state) |
|
{ |
|
static DEFINE_MUTEX(mutex); |
|
|
|
mutex_lock(&mutex); |
|
|
|
pr_debug("%s:%d: %d\n", __func__, __LINE__, state); |
|
|
|
if (state) |
|
user_wake_sources |= PS3_SM_WAKE_W_O_L; |
|
else |
|
user_wake_sources &= ~PS3_SM_WAKE_W_O_L; |
|
mutex_unlock(&mutex); |
|
} |
|
EXPORT_SYMBOL_GPL(ps3_sys_manager_set_wol); |
|
|
|
/** |
|
* ps3_sys_manager_work - Asynchronous read handler. |
|
* |
|
* Signaled when PS3_SM_RX_MSG_LEN_MIN bytes arrive at the vuart port. |
|
*/ |
|
|
|
static void ps3_sys_manager_work(struct ps3_system_bus_device *dev) |
|
{ |
|
ps3_sys_manager_handle_msg(dev); |
|
ps3_vuart_read_async(dev, PS3_SM_RX_MSG_LEN_MIN); |
|
} |
|
|
|
static int ps3_sys_manager_probe(struct ps3_system_bus_device *dev) |
|
{ |
|
int result; |
|
struct ps3_sys_manager_ops ops; |
|
|
|
dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); |
|
|
|
ops.power_off = ps3_sys_manager_final_power_off; |
|
ops.restart = ps3_sys_manager_final_restart; |
|
ops.dev = dev; |
|
|
|
/* ps3_sys_manager_register_ops copies ops. */ |
|
|
|
ps3_sys_manager_register_ops(&ops); |
|
|
|
result = ps3_sys_manager_send_attr(dev, PS3_SM_ATTR_ALL); |
|
BUG_ON(result); |
|
|
|
result = ps3_vuart_read_async(dev, PS3_SM_RX_MSG_LEN_MIN); |
|
BUG_ON(result); |
|
|
|
return result; |
|
} |
|
|
|
static int ps3_sys_manager_remove(struct ps3_system_bus_device *dev) |
|
{ |
|
dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); |
|
return 0; |
|
} |
|
|
|
static void ps3_sys_manager_shutdown(struct ps3_system_bus_device *dev) |
|
{ |
|
dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__); |
|
} |
|
|
|
static struct ps3_vuart_port_driver ps3_sys_manager = { |
|
.core.match_id = PS3_MATCH_ID_SYSTEM_MANAGER, |
|
.core.core.name = "ps3_sys_manager", |
|
.probe = ps3_sys_manager_probe, |
|
.remove = ps3_sys_manager_remove, |
|
.shutdown = ps3_sys_manager_shutdown, |
|
.work = ps3_sys_manager_work, |
|
}; |
|
|
|
static int __init ps3_sys_manager_init(void) |
|
{ |
|
if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) |
|
return -ENODEV; |
|
|
|
return ps3_vuart_port_driver_register(&ps3_sys_manager); |
|
} |
|
|
|
module_init(ps3_sys_manager_init); |
|
/* Module remove not supported. */ |
|
|
|
MODULE_AUTHOR("Sony Corporation"); |
|
MODULE_LICENSE("GPL v2"); |
|
MODULE_DESCRIPTION("PS3 System Manager"); |
|
MODULE_ALIAS(PS3_MODULE_ALIAS_SYSTEM_MANAGER);
|
|
|