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git://nv-tegra.nvidia.com/linux-nv-oot.git
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b20c5f57e3
Use SPDX license GPL-V2.0 format and change Nvidia copyright year to include 2023. Bug 4078035 Change-Id: Icc0060431eb8d9c470a44f4cee50913cc1d8048a Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2890656 Reviewed-by: svcacv <svcacv@nvidia.com> Reviewed-by: Arun Swain <arswain@nvidia.com> GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
97 lines
2.5 KiB
C
97 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2022-2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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*/
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#ifndef DCE_FSM_H
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#define DCE_FSM_H
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#include <dce-cond.h>
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#include <dce-lock.h>
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/**
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* enum dce_fsm_event_id_type - IDs to be used to convey various
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* events throughout the life cycle of dce.
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*/
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enum dce_fsm_event_id_type {
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EVENT_ID_DCE_INVALID = -1,
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EVENT_ID_DCE_FSM_START = 0,
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EVENT_ID_DCE_BOOT_COMPLETE_REQUESTED,
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EVENT_ID_DCE_BOOT_COMPLETE_RECEIVED,
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EVENT_ID_DCE_BOOT_CMD_MSG_REQUESTED,
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EVENT_ID_DCE_BOOT_CMD_MSG_RECEIVED,
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EVENT_ID_DCE_ADMIN_IPC_MSG_REQUESTED,
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EVENT_ID_DCE_ADMIN_IPC_MSG_RECEIVED,
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EVENT_ID_DCE_SC7_ENTER_REQUESTED,
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EVENT_ID_DCE_SC7_ENTERED_RECEIVED,
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EVENT_ID_DCE_SC7_EXIT_RECEIVED,
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EVENT_ID_DCE_LOG_REQUESTED,
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EVENT_ID_DCE_LOG_READY_RECEIVED,
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EVENT_ID_DCE_ABORT_RECEIVED,
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EVENT_ID_DCE_CRASH_LOG_RECEIVED,
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EVENT_ID_DCE_LOG_OVERFLOW_RECEIVED,
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EVENT_ID_DCE_FSM_STOP,
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};
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/**
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* dce_fsm_state - Different states of dce.
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*/
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enum dce_fsm_state {
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STATE_DCE_INVALID = -1,
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STATE_DCE_FSM_IDLE = 0,
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STATE_DCE_BOOT_WAIT,
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STATE_DCE_BOOTCMD_WFI,
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STATE_DCE_ADMIN_WFI,
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STATE_DCE_SC7_ENTER_WFI,
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STATE_DCE_SC7_ENTERED,
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STATE_DCE_LOG_READY_WFI,
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STATE_DCE_ABORT,
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};
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/**
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* struct dce_fsm_info - contains info used by FSM
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* @d : Pointer to tegra_dce struct
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* @initialized : If FSM is initialized
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* @c_state : Current state of FSM
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* @lock : Mutex to protect FSM operations
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* @requested_ipcs : Indicate what IPCs/requests are currently running.
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* In case we support more than one FSM request at a time.
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*/
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struct dce_fsm_info {
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struct tegra_dce *d;
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bool initialized;
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enum dce_fsm_state c_state;
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struct dce_mutex lock;
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u32 requested_ipcs;
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};
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/**
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* struct dce_mailbox_send_cmd_params - contains params for callback function
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* @cmd : u32 command to be send
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* @interface : interface id on which command need to be sent
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*/
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struct dce_mailbox_send_cmd_params {
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u32 cmd;
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u32 interface;
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};
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/**
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* struct dce_admin_send_msg_params - contains params for callback function
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* @msg : Pointer to dce_ipc_msg
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*/
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struct dce_admin_send_msg_params {
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struct dce_ipc_message *msg;
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};
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int dce_fsm_init(struct tegra_dce *d);
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void dce_fsm_start(struct tegra_dce *d);
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void dce_fsm_stop(struct tegra_dce *d);
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void dce_fsm_deinit(struct tegra_dce *d);
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int dce_fsm_post_event(struct tegra_dce *d,
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enum dce_fsm_event_id_type event,
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void *data);
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int dce_handle_fsm_start_event(struct tegra_dce *d, void *params);
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int dce_handle_event_stub(struct tegra_dce *d, void *params);
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#endif
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