chip.h

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#ifndef __DRIVERS_GFX_GENERIC_CHIP_H__
#define __DRIVERS_GFX_GENERIC_CHIP_H__
 
#include <acpi/acpi_device.h>
 
/* Config for electronic privacy screen */
struct drivers_gfx_generic_privacy_screen_config {
        /* Is privacy screen available on this graphics device */
        int enabled;
        /* ACPI namespace path to privacy screen detection function */
        const char *detect_function;
        /* ACPI namespace path to privacy screen status function */
        const char *status_function;
        /* ACPI namespace path to privacy screen enable function */
        const char *enable_function;
        /* ACPI namespace path to privacy screen disable function */
        const char *disable_function;
        /*
         * GPIO used for controlling the privacy screen. If provided,
         * the gpio mechanism takes preference over the functions ptrs
         * above, if any (GPIO functions override the function ptrs).
         */
        struct acpi_gpio gpio;
};
 
/* Config for an output device as defined in section A.5 of the ACPI spec */
struct drivers_gfx_generic_device_config {
        /* ACPI device name of the output device */
        const char *name;
        /* Value to use for _HID Name, will take precedence over _ADR */
        const char *hid;
        /* The address of the output device. See section A.3.2 */
        unsigned int addr;
        /* Electronic privacy screen specific config */
        struct drivers_gfx_generic_privacy_screen_config privacy;
};
 
/* Config for an ACPI video device defined in Appendix A of the ACPI spec */
struct drivers_gfx_generic_config {
        /*
         * ACPI device name of the graphics card, "GFX0" will be used if name is
         * not set
         */
        const char *name;
        /* The number of output devices defined */
        int device_count;
        /* Config for output devices */
        struct drivers_gfx_generic_device_config device[5];
};
 
#endif /* __DRIVERS_GFX_GENERIC_CHIP_H__ */