52 lines
1.9 KiB
C
52 lines
1.9 KiB
C
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/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2021 Intel Corporation
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*/
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#ifndef __INTEL_BACKLIGHT_H__
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#define __INTEL_BACKLIGHT_H__
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#include <linux/types.h>
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struct drm_connector;
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struct drm_connector_state;
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struct intel_atomic_state;
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struct intel_connector;
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struct intel_crtc_state;
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struct intel_encoder;
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struct intel_panel;
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enum pipe;
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void intel_panel_init_backlight_funcs(struct intel_panel *panel);
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void intel_panel_destroy_backlight(struct intel_panel *panel);
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void intel_panel_set_backlight_acpi(const struct drm_connector_state *conn_state,
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u32 level, u32 max);
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int intel_panel_setup_backlight(struct drm_connector *connector,
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enum pipe pipe);
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void intel_panel_enable_backlight(const struct intel_crtc_state *crtc_state,
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const struct drm_connector_state *conn_state);
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void intel_panel_update_backlight(struct intel_atomic_state *state,
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struct intel_encoder *encoder,
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const struct intel_crtc_state *crtc_state,
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const struct drm_connector_state *conn_state);
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void intel_panel_disable_backlight(const struct drm_connector_state *old_conn_state);
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void intel_panel_set_pwm_level(const struct drm_connector_state *conn_state, u32 level);
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u32 intel_panel_invert_pwm_level(struct intel_connector *connector, u32 level);
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u32 intel_panel_backlight_level_to_pwm(struct intel_connector *connector, u32 level);
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u32 intel_panel_backlight_level_from_pwm(struct intel_connector *connector, u32 val);
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#if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
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int intel_backlight_device_register(struct intel_connector *connector);
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void intel_backlight_device_unregister(struct intel_connector *connector);
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#else /* CONFIG_BACKLIGHT_CLASS_DEVICE */
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static inline int intel_backlight_device_register(struct intel_connector *connector)
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{
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return 0;
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}
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static inline void intel_backlight_device_unregister(struct intel_connector *connector)
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{
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}
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#endif /* CONFIG_BACKLIGHT_CLASS_DEVICE */
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#endif /* __INTEL_BACKLIGHT_H__ */
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