1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 3 #ifndef __DRIVERS_GFX_GENERIC_CHIP_H__ 4 #define __DRIVERS_GFX_GENERIC_CHIP_H__ 5 6 #include <acpi/acpi_device.h> 7 #include <acpi/acpi_pld.h> 8 9 /* ACPI spec 6.5 table B-2, Display Output Device */ 10 #define DOD_FW_DETECT BIT(16) /* Platform boot firmware can detect the device. */ 11 #define DOD_DID_STD BIT(31) /* DID Scheme: Use standard bit-field definitions */ 12 enum display_type { 13 other = 0, 14 vga = 1, /* VGA, CRT, VESA monitor */ 15 tv = 2, /* TV/HDTV or analog monitor */ 16 ext = 3, /* External digital monitor (DVI, HDMI, DP) */ 17 panel = 4, /* Internal/integrated digital flat panel */ 18 }; 19 20 /* Config for electronic privacy screen */ 21 struct drivers_gfx_generic_privacy_screen_config { 22 /* Is privacy screen available on this graphics device */ 23 int enabled; 24 /* ACPI namespace path to privacy screen detection function */ 25 const char *detect_function; 26 /* ACPI namespace path to privacy screen status function */ 27 const char *status_function; 28 /* ACPI namespace path to privacy screen enable function */ 29 const char *enable_function; 30 /* ACPI namespace path to privacy screen disable function */ 31 const char *disable_function; 32 /* 33 * GPIO used for controlling the privacy screen. If provided, 34 * the gpio mechanism takes preference over the functions ptrs 35 * above, if any (GPIO functions override the function ptrs). 36 */ 37 struct acpi_gpio gpio; 38 }; 39 40 /* Config for an output device as defined in section A.5 of the ACPI spec */ 41 struct drivers_gfx_generic_device_config { 42 /* ACPI device name of the output device */ 43 const char *name; 44 /* Value to use for _HID Name, will take precedence over _ADR */ 45 const char *hid; 46 /* The display type of the output device. See definition above */ 47 enum display_type type; 48 /* The address of the output device. 49 Will be dynamically generated if not set and display_type is set */ 50 unsigned int addr; 51 /* Electronic privacy screen specific config */ 52 struct drivers_gfx_generic_privacy_screen_config privacy; 53 /* Physical location of connection point */ 54 bool use_pld; 55 struct acpi_pld pld; 56 }; 57 58 /* Config for an ACPI video device defined in Appendix A of the ACPI spec */ 59 struct drivers_gfx_generic_config { 60 /* 61 * ACPI device name of the graphics card, "GFX0" will be used if name is 62 * not set 63 */ 64 const char *name; 65 /* The number of output devices defined */ 66 int device_count; 67 /* Config for output devices */ 68 /* 1 DDIA + 1 DDIB + max 4 TCP = up to 6 GFX devices */ 69 struct drivers_gfx_generic_device_config device[6]; 70 }; 71 72 #endif /* __DRIVERS_GFX_GENERIC_CHIP_H__ */ 73