display/config/1.2/IDisplayConfig.hal

/*
* Copyright (c) 2018 The Linux Foundation. All rights reserved.
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package vendor.display.config@1.2;

import @1.1::IDisplayConfig;

interface IDisplayConfig extends @1.1::IDisplayConfig {
   enum DisplayTypeExt : int32_t {
        // primary display is just one, can be either builtin or pluggable.
        DISPLAY_PRIMARY = 0,
        DISPLAY_BUILTIN = 1,
        DISPLAY_PLUGGABLE = 2,
        DISPLAY_VIRTUAL = 3,
    };

    /*
    * Sets display index range that caller defined for a given display type.
    *
    * @param disp_type display type.
    * @param base start value in the range.
    * @param count maximum number of supported display of this type.
    *
    * @return one of the hwc2 errors
    */
    @callflow(next="*")
    setDisplayIndex(DisplayTypeExt disp_type, uint32_t base, uint32_t count)
          generates  (int32_t error);
};