| 1 | /* SPDX-License-Identifier: MIT */ |
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| 2 | /* |
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| 3 | * Copyright © 2021 Intel Corporation |
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| 4 | */ |
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| 5 | |
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| 6 | #ifndef __INTEL_BACKLIGHT_H__ |
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| 7 | #define __INTEL_BACKLIGHT_H__ |
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| 8 | |
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| 9 | #include <linux/types.h> |
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| 10 | |
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| 11 | struct drm_connector_state; |
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| 12 | struct intel_atomic_state; |
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| 13 | struct intel_connector; |
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| 14 | struct intel_crtc_state; |
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| 15 | struct intel_encoder; |
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| 16 | struct intel_panel; |
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| 17 | enum pipe; |
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| 18 | |
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| 19 | void intel_backlight_init_funcs(struct intel_panel *panel); |
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| 20 | int intel_backlight_setup(struct intel_connector *connector, enum pipe pipe); |
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| 21 | void intel_backlight_destroy(struct intel_panel *panel); |
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| 22 | |
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| 23 | void intel_backlight_enable(const struct intel_crtc_state *crtc_state, |
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| 24 | const struct drm_connector_state *conn_state); |
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| 25 | void intel_backlight_update(struct intel_atomic_state *state, |
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| 26 | struct intel_encoder *encoder, |
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| 27 | const struct intel_crtc_state *crtc_state, |
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| 28 | const struct drm_connector_state *conn_state); |
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| 29 | void intel_backlight_disable(const struct drm_connector_state *old_conn_state); |
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| 30 | |
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| 31 | void intel_backlight_set_acpi(const struct drm_connector_state *conn_state, |
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| 32 | u32 level, u32 max); |
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| 33 | void intel_backlight_set_pwm_level(const struct drm_connector_state *conn_state, |
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| 34 | u32 level); |
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| 35 | u32 intel_backlight_invert_pwm_level(struct intel_connector *connector, u32 level); |
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| 36 | u32 intel_backlight_level_to_pwm(struct intel_connector *connector, u32 level); |
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| 37 | u32 intel_backlight_level_from_pwm(struct intel_connector *connector, u32 val); |
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| 38 | |
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| 39 | #if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE) |
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| 40 | int intel_backlight_device_register(struct intel_connector *connector); |
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| 41 | void intel_backlight_device_unregister(struct intel_connector *connector); |
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| 42 | #else /* CONFIG_BACKLIGHT_CLASS_DEVICE */ |
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| 43 | static inline int intel_backlight_device_register(struct intel_connector *connector) |
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| 44 | { |
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| 45 | return 0; |
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| 46 | } |
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| 47 | static inline void intel_backlight_device_unregister(struct intel_connector *connector) |
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| 48 | { |
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| 49 | } |
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| 50 | #endif /* CONFIG_BACKLIGHT_CLASS_DEVICE */ |
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| 51 | |
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| 52 | #endif /* __INTEL_BACKLIGHT_H__ */ |
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| 53 | |
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