7c365bdb94
Re-structure video driver statemachine to use event handler. Added event handler support for event states. Added change to handle event depending on the underlying state implementation. Change-Id: Ib55c12c6cadc4d780797a5aee75d5ea61e95c94f Signed-off-by: Govindaraj Rajagopal <quic_grajagop@quicinc.com>
75 lines
2.7 KiB
C
75 lines
2.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
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* Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
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*/
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#ifndef _MSM_VIDC_STATE_H_
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#define _MSM_VIDC_STATE_H_
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#include "msm_vidc_internal.h"
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struct msm_vidc_core;
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enum msm_vidc_state;
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enum msm_vidc_sub_state;
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#define FOREACH_CORE_STATE(CORE_STATE) { \
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CORE_STATE(CORE_DEINIT) \
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CORE_STATE(CORE_INIT_WAIT) \
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CORE_STATE(CORE_INIT) \
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CORE_STATE(CORE_ERROR) \
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}
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#define FOREACH_EVENT(EVENT) { \
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EVENT(S_FMT) \
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EVENT(REQBUFS) \
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EVENT(S_CTRL) \
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EVENT(STREAMON) \
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EVENT(STREAMOFF) \
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EVENT(CMD_START) \
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EVENT(CMD_STOP) \
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EVENT(BUF_QUEUE) \
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}
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enum msm_vidc_core_state FOREACH_CORE_STATE(GENERATE_MSM_VIDC_ENUM);
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enum msm_vidc_core_sub_state {
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CORE_SUBSTATE_NONE = 0x0,
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CORE_SUBSTATE_POWER_ENABLE = BIT(0),
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CORE_SUBSTATE_GDSC_HANDOFF = BIT(1),
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CORE_SUBSTATE_PM_SUSPEND = BIT(2),
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CORE_SUBSTATE_FW_PWR_CTRL = BIT(3),
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CORE_SUBSTATE_PAGE_FAULT = BIT(4),
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CORE_SUBSTATE_CPU_WATCHDOG = BIT(5),
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CORE_SUBSTATE_VIDEO_UNRESPONSIVE = BIT(6),
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CORE_SUBSTATE_MAX = BIT(7),
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};
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enum msm_vidc_core_event_type {
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CORE_EVENT_NONE = BIT(0),
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CORE_EVENT_UPDATE_SUB_STATE = BIT(1),
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};
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enum msm_vidc_event FOREACH_EVENT(GENERATE_MSM_VIDC_ENUM);
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/* core statemachine functions */
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enum msm_vidc_allow msm_vidc_allow_core_state_change(
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struct msm_vidc_core *core, enum msm_vidc_core_state req_state);
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int msm_vidc_update_core_state(struct msm_vidc_core *core,
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enum msm_vidc_core_state request_state, const char *func);
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bool core_in_valid_state(struct msm_vidc_core *core);
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bool is_core_state(struct msm_vidc_core *core, enum msm_vidc_core_state state);
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bool is_core_sub_state(struct msm_vidc_core *core,
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enum msm_vidc_core_sub_state sub_state);
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const char *core_state_name(enum msm_vidc_core_state state);
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const char *core_sub_state_name(enum msm_vidc_core_sub_state sub_state);
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/* inst statemachine functions */
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int msm_vidc_update_state(struct msm_vidc_inst *inst,
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enum msm_vidc_state request_state, const char *func);
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enum msm_vidc_allow msm_vidc_allow_state_change(
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struct msm_vidc_inst *inst,
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enum msm_vidc_state req_state);
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#endif // _MSM_VIDC_STATE_H_
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