ArmPlatformPkg/Include/Library/LcdPlatformLib.h - edk2 - Git at Google

 /** @file

  Copyright (c) 2011-2020, Arm Limited. All rights reserved.<BR>
  SPDX-License-Identifier: BSD-2-Clause-Patent

  **/

 #ifndef LCD_PLATFORM_LIB_H_
 #define LCD_PLATFORM_LIB_H_

 #include <Protocol/GraphicsOutput.h>

 #define LCD_VRAM_SIZE  SIZE_8MB

 // Modes definitions
 #define VGA    0
 #define SVGA   1
 #define XGA    2
 #define SXGA   3
 #define WSXGA  4
 #define UXGA   5
 #define HD     6
 #define WVGA   7
 #define QHD    8
 #define WSVGA  9
 #define HD720  10
 #define WXGA   11

 // VGA Mode: 640 x 480
 #define VGA_H_RES_PIXELS   640
 #define VGA_V_RES_PIXELS   480
 #define VGA_OSC_FREQUENCY  23750000                 /* 0x016A6570 */

 #define VGA_H_SYNC         ( 80 - 1)
 #define VGA_H_FRONT_PORCH  ( 16 - 1)
 #define VGA_H_BACK_PORCH   ( 64 - 1)

 #define VGA_V_SYNC         (  4 - 1)
 #define VGA_V_FRONT_PORCH  (  3 - 1)
 #define VGA_V_BACK_PORCH   ( 13 - 1)

 // SVGA Mode: 800 x 600
 #define SVGA_H_RES_PIXELS   800
 #define SVGA_V_RES_PIXELS   600
 #define SVGA_OSC_FREQUENCY  38250000                /* 0x0247A610 */

 #define SVGA_H_SYNC         ( 80 - 1)
 #define SVGA_H_FRONT_PORCH  ( 32 - 1)
 #define SVGA_H_BACK_PORCH   (112 - 1)

 #define SVGA_V_SYNC         (  4 - 1)
 #define SVGA_V_FRONT_PORCH  (  3 - 1)
 #define SVGA_V_BACK_PORCH   ( 17 - 1)

 // XGA Mode: 1024 x 768
 #define XGA_H_RES_PIXELS   1024
 #define XGA_V_RES_PIXELS   768
 #define XGA_OSC_FREQUENCY  63500000                 /* 0x03C8EEE0 */

 #define XGA_H_SYNC         (104 - 1)
 #define XGA_H_FRONT_PORCH  ( 48 - 1)
 #define XGA_H_BACK_PORCH   (152 - 1)

 #define XGA_V_SYNC         (  4 - 1)
 #define XGA_V_FRONT_PORCH  (  3 - 1)
 #define XGA_V_BACK_PORCH   ( 23 - 1)

 // SXGA Mode: 1280 x 1024
 #define SXGA_H_RES_PIXELS   1280
 #define SXGA_V_RES_PIXELS   1024
 #define SXGA_OSC_FREQUENCY  109000000                /* 0x067F3540 */

 #define SXGA_H_SYNC         (136 - 1)
 #define SXGA_H_FRONT_PORCH  ( 80 - 1)
 #define SXGA_H_BACK_PORCH   (216 - 1)

 #define SXGA_V_SYNC         (  7 - 1)
 #define SXGA_V_FRONT_PORCH  (  3 - 1)
 #define SXGA_V_BACK_PORCH   ( 29 - 1)

 // WSXGA+ Mode: 1680 x 1050
 #define WSXGA_H_RES_PIXELS   1680
 #define WSXGA_V_RES_PIXELS   1050
 #define WSXGA_OSC_FREQUENCY  147000000               /* 0x08C30AC0 */

 #define WSXGA_H_SYNC         (170 - 1)
 #define WSXGA_H_FRONT_PORCH  (104 - 1)
 #define WSXGA_H_BACK_PORCH   (274 - 1)

 #define WSXGA_V_SYNC         (  5 - 1)
 #define WSXGA_V_FRONT_PORCH  (  4 - 1)
 #define WSXGA_V_BACK_PORCH   ( 41 - 1)

 // UXGA Mode: 1600 x 1200
 #define UXGA_H_RES_PIXELS   1600
 #define UXGA_V_RES_PIXELS   1200
 #define UXGA_OSC_FREQUENCY  161000000                /* 0x0998AA40 */

 #define UXGA_H_SYNC         (168 - 1)
 #define UXGA_H_FRONT_PORCH  (112 - 1)
 #define UXGA_H_BACK_PORCH   (280 - 1)

 #define UXGA_V_SYNC         (  4 - 1)
 #define UXGA_V_FRONT_PORCH  (  3 - 1)
 #define UXGA_V_BACK_PORCH   ( 38 - 1)

 // HD Mode: 1920 x 1080
 #define HD_H_RES_PIXELS   1920
 #define HD_V_RES_PIXELS   1080
 #define HD_OSC_FREQUENCY  165000000                  /* 0x09D5B340 */

 #define HD_H_SYNC         ( 79 - 1)
 #define HD_H_FRONT_PORCH  (128 - 1)
 #define HD_H_BACK_PORCH   (328 - 1)

 #define HD_V_SYNC         (  5 - 1)
 #define HD_V_FRONT_PORCH  (  3 - 1)
 #define HD_V_BACK_PORCH   ( 32 - 1)

 // WVGA Mode: 800 x 480
 #define WVGA_H_RES_PIXELS   800
 #define WVGA_V_RES_PIXELS   480
 #define WVGA_OSC_FREQUENCY  29500000                 /* 0x01C22260 */
 #define WVGA_H_SYNC         ( 72 - 1)
 #define WVGA_H_FRONT_PORCH  ( 24 - 1)
 #define WVGA_H_BACK_PORCH   ( 96 - 1)
 #define WVGA_V_SYNC         (  7 - 1)
 #define WVGA_V_FRONT_PORCH  (  3 - 1)
 #define WVGA_V_BACK_PORCH   ( 10 - 1)

 // QHD Mode: 960 x 540
 #define QHD_H_RES_PIXELS   960
 #define QHD_V_RES_PIXELS   540
 #define QHD_OSC_FREQUENCY  40750000                  /* 0x026DCBB0 */
 #define QHD_H_SYNC         ( 96 - 1)
 #define QHD_H_FRONT_PORCH  ( 32 - 1)
 #define QHD_H_BACK_PORCH   (128 - 1)
 #define QHD_V_SYNC         (  5 - 1)
 #define QHD_V_FRONT_PORCH  (  3 - 1)
 #define QHD_V_BACK_PORCH   ( 14 - 1)

 // WSVGA Mode: 1024 x 600
 #define WSVGA_H_RES_PIXELS   1024
 #define WSVGA_V_RES_PIXELS   600
 #define WSVGA_OSC_FREQUENCY  49000000                /* 0x02EBAE40 */
 #define WSVGA_H_SYNC         (104 - 1)
 #define WSVGA_H_FRONT_PORCH  ( 40 - 1)
 #define WSVGA_H_BACK_PORCH   (144 - 1)
 #define WSVGA_V_SYNC         ( 10 - 1)
 #define WSVGA_V_FRONT_PORCH  (  3 - 1)
 #define WSVGA_V_BACK_PORCH   ( 11 - 1)

 // HD720 Mode: 1280 x 720
 #define HD720_H_RES_PIXELS   1280
 #define HD720_V_RES_PIXELS   720
 #define HD720_OSC_FREQUENCY  74500000                 /* 0x0470C7A0 */
 #define HD720_H_SYNC         (128 - 1)
 #define HD720_H_FRONT_PORCH  ( 64 - 1)
 #define HD720_H_BACK_PORCH   (192 - 1)
 #define HD720_V_SYNC         (  5 - 1)
 #define HD720_V_FRONT_PORCH  (  3 - 1)
 #define HD720_V_BACK_PORCH   ( 20 - 1)

 // WXGA Mode: 1280 x 800
 #define WXGA_H_RES_PIXELS   1280
 #define WXGA_V_RES_PIXELS   800
 #define WXGA_OSC_FREQUENCY  83500000                 /* 0x04FA1BE0 */
 #define WXGA_H_SYNC         (128 - 1)
 #define WXGA_H_FRONT_PORCH  ( 72 - 1)
 #define WXGA_H_BACK_PORCH   (200 - 1)
 #define WXGA_V_SYNC         (  6 - 1)
 #define WXGA_V_FRONT_PORCH  (  3 - 1)
 #define WXGA_V_BACK_PORCH   ( 22 - 1)

 // Colour Masks
 #define LCD_24BPP_RED_MASK       0x00FF0000
 #define LCD_24BPP_GREEN_MASK     0x0000FF00
 #define LCD_24BPP_BLUE_MASK      0x000000FF
 #define LCD_24BPP_RESERVED_MASK  0xFF000000

 #define LCD_16BPP_555_RED_MASK       0x00007C00
 #define LCD_16BPP_555_GREEN_MASK     0x000003E0
 #define LCD_16BPP_555_BLUE_MASK      0x0000001F
 #define LCD_16BPP_555_RESERVED_MASK  0x00000000

 #define LCD_16BPP_565_RED_MASK       0x0000F800
 #define LCD_16BPP_565_GREEN_MASK     0x000007E0
 #define LCD_16BPP_565_BLUE_MASK      0x0000001F
 #define LCD_16BPP_565_RESERVED_MASK  0x00008000

 #define LCD_12BPP_444_RED_MASK       0x00000F00
 #define LCD_12BPP_444_GREEN_MASK     0x000000F0
 #define LCD_12BPP_444_BLUE_MASK      0x0000000F
 #define LCD_12BPP_444_RESERVED_MASK  0x0000F000

 /** The enumeration maps the PL111 LcdBpp values used in the LCD Control
   Register
 **/
 typedef enum {
   LcdBitsPerPixel_1 = 0,
   LcdBitsPerPixel_2,
   LcdBitsPerPixel_4,
   LcdBitsPerPixel_8,
   LcdBitsPerPixel_16_555,
   LcdBitsPerPixel_24,
   LcdBitsPerPixel_16_565,
   LcdBitsPerPixel_12_444,
   LcdBitsPerPixel_Max
 } LCD_BPP;

 // Display timing settings.
 typedef struct {
   UINT32    Resolution;
   UINT32    Sync;
   UINT32    BackPorch;
   UINT32    FrontPorch;
 } SCAN_TIMINGS;

 /** Platform related initialization function.

   @param[in] Handle              Handle to the LCD device instance.

   @retval EFI_SUCCESS            Plaform library initialized successfully.
   @retval !(EFI_SUCCESS)         Other errors.
 **/
 EFI_STATUS
 LcdPlatformInitializeDisplay (
   IN EFI_HANDLE  Handle
   );

 /** Allocate VRAM memory in DRAM for the framebuffer
   (unless it is reserved already).

   The allocated address can be used to set the framebuffer.

   @param[out] VramBaseAddress      A pointer to the framebuffer address.
   @param[out] VramSize             A pointer to the size of the frame
                                    buffer in bytes

   @retval EFI_SUCCESS              Frame buffer memory allocated successfully.
   @retval !(EFI_SUCCESS)           Other errors.
 **/
 EFI_STATUS
 LcdPlatformGetVram (
   OUT EFI_PHYSICAL_ADDRESS  *VramBaseAddress,
   OUT UINTN                 *VramSize
   );

 /** Return total number of modes supported.

   Note: Valid mode numbers are 0 to MaxMode - 1
   See Section 12.9 of the UEFI Specification 2.7

   @retval UINT32             Mode Number.
 **/
 UINT32
 LcdPlatformGetMaxMode (
   VOID
   );

 /** Set the requested display mode.

   @param[in] ModeNumber            Mode Number.

   @retval  EFI_SUCCESS             Mode set successfully.
   @retval  EFI_INVALID_PARAMETER   Requested mode not found.
   @retval  !(EFI_SUCCESS)          Other errors.
 **/
 EFI_STATUS
 LcdPlatformSetMode (
   IN UINT32  ModeNumber
   );

 /** Return information for the requested mode number.

   @param[in]  ModeNumber         Mode Number.
   @param[out] Info               Pointer for returned mode information
                                  (on success).

   @retval EFI_SUCCESS             Mode information for the requested mode
                                   returned successfully.
   @retval EFI_INVALID_PARAMETER   Requested mode not found.
 **/
 EFI_STATUS
 LcdPlatformQueryMode (
   IN  UINT32                                ModeNumber,
   OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION  *Info
   );

 /** Return display timing information for the requested mode number.

   @param[in]  ModeNumber          Mode Number.

   @param[out] Horizontal          Pointer to horizontal timing parameters.
                                   (Resolution, Sync, Back porch, Front porch)
   @param[out] Vertical            Pointer to vertical timing parameters.
                                   (Resolution, Sync, Back porch, Front porch)


   @retval EFI_SUCCESS             Display timing information for the requested
                                   mode returned successfully.
   @retval EFI_INVALID_PARAMETER   Requested mode not found.
 **/
 EFI_STATUS
 LcdPlatformGetTimings (
   IN  UINT32        ModeNumber,
   OUT SCAN_TIMINGS  **Horizontal,
   OUT SCAN_TIMINGS  **Vertical
   );

 /** Return bits per pixel information for a mode number.

   @param[in]  ModeNumber          Mode Number.

   @param[out] Bpp                 Pointer to value bits per pixel information.

   @retval EFI_SUCCESS             Bit per pixel information for the requested
                                   mode returned successfully.
   @retval EFI_INVALID_PARAMETER   Requested mode not found.
 **/
 EFI_STATUS
 LcdPlatformGetBpp (
   IN  UINT32   ModeNumber,
   OUT LCD_BPP  *Bpp
   );

 #endif /* LCD_PLATFORM_LIB_H_ */
	/** @file

	Copyright (c) 2011-2020, Arm Limited. All rights reserved.<BR>
	SPDX-License-Identifier: BSD-2-Clause-Patent

	**/

	#ifndef LCD_PLATFORM_LIB_H_
	#define LCD_PLATFORM_LIB_H_

	#include <Protocol/GraphicsOutput.h>

	#define LCD_VRAM_SIZE SIZE_8MB

	// Modes definitions
	#define VGA 0
	#define SVGA 1
	#define XGA 2
	#define SXGA 3
	#define WSXGA 4
	#define UXGA 5
	#define HD 6
	#define WVGA 7
	#define QHD 8
	#define WSVGA 9
	#define HD720 10
	#define WXGA 11

	// VGA Mode: 640 x 480
	#define VGA_H_RES_PIXELS 640
	#define VGA_V_RES_PIXELS 480
	#define VGA_OSC_FREQUENCY 23750000 /* 0x016A6570 */

	#define VGA_H_SYNC ( 80 - 1)
	#define VGA_H_FRONT_PORCH ( 16 - 1)
	#define VGA_H_BACK_PORCH ( 64 - 1)

	#define VGA_V_SYNC ( 4 - 1)
	#define VGA_V_FRONT_PORCH ( 3 - 1)
	#define VGA_V_BACK_PORCH ( 13 - 1)

	// SVGA Mode: 800 x 600
	#define SVGA_H_RES_PIXELS 800
	#define SVGA_V_RES_PIXELS 600
	#define SVGA_OSC_FREQUENCY 38250000 /* 0x0247A610 */

	#define SVGA_H_SYNC ( 80 - 1)
	#define SVGA_H_FRONT_PORCH ( 32 - 1)
	#define SVGA_H_BACK_PORCH (112 - 1)

	#define SVGA_V_SYNC ( 4 - 1)
	#define SVGA_V_FRONT_PORCH ( 3 - 1)
	#define SVGA_V_BACK_PORCH ( 17 - 1)

	// XGA Mode: 1024 x 768
	#define XGA_H_RES_PIXELS 1024
	#define XGA_V_RES_PIXELS 768
	#define XGA_OSC_FREQUENCY 63500000 /* 0x03C8EEE0 */

	#define XGA_H_SYNC (104 - 1)
	#define XGA_H_FRONT_PORCH ( 48 - 1)
	#define XGA_H_BACK_PORCH (152 - 1)

	#define XGA_V_SYNC ( 4 - 1)
	#define XGA_V_FRONT_PORCH ( 3 - 1)
	#define XGA_V_BACK_PORCH ( 23 - 1)

	// SXGA Mode: 1280 x 1024
	#define SXGA_H_RES_PIXELS 1280
	#define SXGA_V_RES_PIXELS 1024
	#define SXGA_OSC_FREQUENCY 109000000 /* 0x067F3540 */

	#define SXGA_H_SYNC (136 - 1)
	#define SXGA_H_FRONT_PORCH ( 80 - 1)
	#define SXGA_H_BACK_PORCH (216 - 1)

	#define SXGA_V_SYNC ( 7 - 1)
	#define SXGA_V_FRONT_PORCH ( 3 - 1)
	#define SXGA_V_BACK_PORCH ( 29 - 1)

	// WSXGA+ Mode: 1680 x 1050
	#define WSXGA_H_RES_PIXELS 1680
	#define WSXGA_V_RES_PIXELS 1050
	#define WSXGA_OSC_FREQUENCY 147000000 /* 0x08C30AC0 */

	#define WSXGA_H_SYNC (170 - 1)
	#define WSXGA_H_FRONT_PORCH (104 - 1)
	#define WSXGA_H_BACK_PORCH (274 - 1)

	#define WSXGA_V_SYNC ( 5 - 1)
	#define WSXGA_V_FRONT_PORCH ( 4 - 1)
	#define WSXGA_V_BACK_PORCH ( 41 - 1)

	// UXGA Mode: 1600 x 1200
	#define UXGA_H_RES_PIXELS 1600
	#define UXGA_V_RES_PIXELS 1200
	#define UXGA_OSC_FREQUENCY 161000000 /* 0x0998AA40 */

	#define UXGA_H_SYNC (168 - 1)
	#define UXGA_H_FRONT_PORCH (112 - 1)
	#define UXGA_H_BACK_PORCH (280 - 1)

	#define UXGA_V_SYNC ( 4 - 1)
	#define UXGA_V_FRONT_PORCH ( 3 - 1)
	#define UXGA_V_BACK_PORCH ( 38 - 1)

	// HD Mode: 1920 x 1080
	#define HD_H_RES_PIXELS 1920
	#define HD_V_RES_PIXELS 1080
	#define HD_OSC_FREQUENCY 165000000 /* 0x09D5B340 */

	#define HD_H_SYNC ( 79 - 1)
	#define HD_H_FRONT_PORCH (128 - 1)
	#define HD_H_BACK_PORCH (328 - 1)

	#define HD_V_SYNC ( 5 - 1)
	#define HD_V_FRONT_PORCH ( 3 - 1)
	#define HD_V_BACK_PORCH ( 32 - 1)

	// WVGA Mode: 800 x 480
	#define WVGA_H_RES_PIXELS 800
	#define WVGA_V_RES_PIXELS 480
	#define WVGA_OSC_FREQUENCY 29500000 /* 0x01C22260 */
	#define WVGA_H_SYNC ( 72 - 1)
	#define WVGA_H_FRONT_PORCH ( 24 - 1)
	#define WVGA_H_BACK_PORCH ( 96 - 1)
	#define WVGA_V_SYNC ( 7 - 1)
	#define WVGA_V_FRONT_PORCH ( 3 - 1)
	#define WVGA_V_BACK_PORCH ( 10 - 1)

	// QHD Mode: 960 x 540
	#define QHD_H_RES_PIXELS 960
	#define QHD_V_RES_PIXELS 540
	#define QHD_OSC_FREQUENCY 40750000 /* 0x026DCBB0 */
	#define QHD_H_SYNC ( 96 - 1)
	#define QHD_H_FRONT_PORCH ( 32 - 1)
	#define QHD_H_BACK_PORCH (128 - 1)
	#define QHD_V_SYNC ( 5 - 1)
	#define QHD_V_FRONT_PORCH ( 3 - 1)
	#define QHD_V_BACK_PORCH ( 14 - 1)

	// WSVGA Mode: 1024 x 600
	#define WSVGA_H_RES_PIXELS 1024
	#define WSVGA_V_RES_PIXELS 600
	#define WSVGA_OSC_FREQUENCY 49000000 /* 0x02EBAE40 */
	#define WSVGA_H_SYNC (104 - 1)
	#define WSVGA_H_FRONT_PORCH ( 40 - 1)
	#define WSVGA_H_BACK_PORCH (144 - 1)
	#define WSVGA_V_SYNC ( 10 - 1)
	#define WSVGA_V_FRONT_PORCH ( 3 - 1)
	#define WSVGA_V_BACK_PORCH ( 11 - 1)

	// HD720 Mode: 1280 x 720
	#define HD720_H_RES_PIXELS 1280
	#define HD720_V_RES_PIXELS 720
	#define HD720_OSC_FREQUENCY 74500000 /* 0x0470C7A0 */
	#define HD720_H_SYNC (128 - 1)
	#define HD720_H_FRONT_PORCH ( 64 - 1)
	#define HD720_H_BACK_PORCH (192 - 1)
	#define HD720_V_SYNC ( 5 - 1)
	#define HD720_V_FRONT_PORCH ( 3 - 1)
	#define HD720_V_BACK_PORCH ( 20 - 1)

	// WXGA Mode: 1280 x 800
	#define WXGA_H_RES_PIXELS 1280
	#define WXGA_V_RES_PIXELS 800
	#define WXGA_OSC_FREQUENCY 83500000 /* 0x04FA1BE0 */
	#define WXGA_H_SYNC (128 - 1)
	#define WXGA_H_FRONT_PORCH ( 72 - 1)
	#define WXGA_H_BACK_PORCH (200 - 1)
	#define WXGA_V_SYNC ( 6 - 1)
	#define WXGA_V_FRONT_PORCH ( 3 - 1)
	#define WXGA_V_BACK_PORCH ( 22 - 1)

	// Colour Masks
	#define LCD_24BPP_RED_MASK 0x00FF0000
	#define LCD_24BPP_GREEN_MASK 0x0000FF00
	#define LCD_24BPP_BLUE_MASK 0x000000FF
	#define LCD_24BPP_RESERVED_MASK 0xFF000000

	#define LCD_16BPP_555_RED_MASK 0x00007C00
	#define LCD_16BPP_555_GREEN_MASK 0x000003E0
	#define LCD_16BPP_555_BLUE_MASK 0x0000001F
	#define LCD_16BPP_555_RESERVED_MASK 0x00000000

	#define LCD_16BPP_565_RED_MASK 0x0000F800
	#define LCD_16BPP_565_GREEN_MASK 0x000007E0
	#define LCD_16BPP_565_BLUE_MASK 0x0000001F
	#define LCD_16BPP_565_RESERVED_MASK 0x00008000

	#define LCD_12BPP_444_RED_MASK 0x00000F00
	#define LCD_12BPP_444_GREEN_MASK 0x000000F0
	#define LCD_12BPP_444_BLUE_MASK 0x0000000F
	#define LCD_12BPP_444_RESERVED_MASK 0x0000F000

	/** The enumeration maps the PL111 LcdBpp values used in the LCD Control
	Register
	**/
	typedef enum {
	LcdBitsPerPixel_1 = 0,
	LcdBitsPerPixel_2,
	LcdBitsPerPixel_4,
	LcdBitsPerPixel_8,
	LcdBitsPerPixel_16_555,
	LcdBitsPerPixel_24,
	LcdBitsPerPixel_16_565,
	LcdBitsPerPixel_12_444,
	LcdBitsPerPixel_Max
	} LCD_BPP;

	// Display timing settings.
	typedef struct {
	UINT32 Resolution;
	UINT32 Sync;
	UINT32 BackPorch;
	UINT32 FrontPorch;
	} SCAN_TIMINGS;

	/** Platform related initialization function.

	@param[in] Handle Handle to the LCD device instance.

	@retval EFI_SUCCESS Plaform library initialized successfully.
	@retval !(EFI_SUCCESS) Other errors.
	**/
	EFI_STATUS
	LcdPlatformInitializeDisplay (
	IN EFI_HANDLE Handle
	);

	/** Allocate VRAM memory in DRAM for the framebuffer
	(unless it is reserved already).

	The allocated address can be used to set the framebuffer.

	@param[out] VramBaseAddress A pointer to the framebuffer address.
	@param[out] VramSize A pointer to the size of the frame
	buffer in bytes

	@retval EFI_SUCCESS Frame buffer memory allocated successfully.
	@retval !(EFI_SUCCESS) Other errors.
	**/
	EFI_STATUS
	LcdPlatformGetVram (
	OUT EFI_PHYSICAL_ADDRESS *VramBaseAddress,
	OUT UINTN *VramSize
	);

	/** Return total number of modes supported.

	Note: Valid mode numbers are 0 to MaxMode - 1
	See Section 12.9 of the UEFI Specification 2.7

	@retval UINT32 Mode Number.
	**/
	UINT32
	LcdPlatformGetMaxMode (
	VOID
	);

	/** Set the requested display mode.

	@param[in] ModeNumber Mode Number.

	@retval EFI_SUCCESS Mode set successfully.
	@retval EFI_INVALID_PARAMETER Requested mode not found.
	@retval !(EFI_SUCCESS) Other errors.
	**/
	EFI_STATUS
	LcdPlatformSetMode (
	IN UINT32 ModeNumber
	);

	/** Return information for the requested mode number.

	@param[in] ModeNumber Mode Number.
	@param[out] Info Pointer for returned mode information
	(on success).

	@retval EFI_SUCCESS Mode information for the requested mode
	returned successfully.
	@retval EFI_INVALID_PARAMETER Requested mode not found.
	**/
	EFI_STATUS
	LcdPlatformQueryMode (
	IN UINT32 ModeNumber,
	OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info
	);

	/** Return display timing information for the requested mode number.

	@param[in] ModeNumber Mode Number.

	@param[out] Horizontal Pointer to horizontal timing parameters.
	(Resolution, Sync, Back porch, Front porch)
	@param[out] Vertical Pointer to vertical timing parameters.
	(Resolution, Sync, Back porch, Front porch)


	@retval EFI_SUCCESS Display timing information for the requested
	mode returned successfully.
	@retval EFI_INVALID_PARAMETER Requested mode not found.
	**/
	EFI_STATUS
	LcdPlatformGetTimings (
	IN UINT32 ModeNumber,
	OUT SCAN_TIMINGS **Horizontal,
	OUT SCAN_TIMINGS **Vertical
	);

	/** Return bits per pixel information for a mode number.

	@param[in] ModeNumber Mode Number.

	@param[out] Bpp Pointer to value bits per pixel information.

	@retval EFI_SUCCESS Bit per pixel information for the requested
	mode returned successfully.
	@retval EFI_INVALID_PARAMETER Requested mode not found.
	**/
	EFI_STATUS
	LcdPlatformGetBpp (
	IN UINT32 ModeNumber,
	OUT LCD_BPP *Bpp
	);

	#endif /* LCD_PLATFORM_LIB_H_ */