LXR linux/include/linux/platform

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 * simplefb.h - Simple Framebuffer Device
   4 *
   5 * Copyright (C) 2013 David Herrmann <dh.herrmann@gmail.com>
   6 */
   7
   8#ifndef __PLATFORM_DATA_SIMPLEFB_H__
   9#define __PLATFORM_DATA_SIMPLEFB_H__
  10
  11#include <drm/drm_fourcc.h>
  12#include <linux/fb.h>
  13#include <linux/types.h>
  14
  15/* format array, use it to initialize a "struct simplefb_format" array */
  16#define SIMPLEFB_FORMATS \
  17{ \
  18        { "r5g6b5", 16, {11, 5}, {5, 6}, {0, 5}, {0, 0}, DRM_FORMAT_RGB565 }, \
  19        { "r5g5b5a1", 16, {11, 5}, {6, 5}, {1, 5}, {0, 1}, DRM_FORMAT_RGBA5551 }, \
  20        { "x1r5g5b5", 16, {10, 5}, {5, 5}, {0, 5}, {0, 0}, DRM_FORMAT_XRGB1555 }, \
  21        { "a1r5g5b5", 16, {10, 5}, {5, 5}, {0, 5}, {15, 1}, DRM_FORMAT_ARGB1555 }, \
  22        { "r8g8b8", 24, {16, 8}, {8, 8}, {0, 8}, {0, 0}, DRM_FORMAT_RGB888 }, \
  23        { "x8r8g8b8", 32, {16, 8}, {8, 8}, {0, 8}, {0, 0}, DRM_FORMAT_XRGB8888 }, \
  24        { "a8r8g8b8", 32, {16, 8}, {8, 8}, {0, 8}, {24, 8}, DRM_FORMAT_ARGB8888 }, \
  25        { "a8b8g8r8", 32, {0, 8}, {8, 8}, {16, 8}, {24, 8}, DRM_FORMAT_ABGR8888 }, \
  26        { "x2r10g10b10", 32, {20, 10}, {10, 10}, {0, 10}, {0, 0}, DRM_FORMAT_XRGB2101010 }, \
  27        { "a2r10g10b10", 32, {20, 10}, {10, 10}, {0, 10}, {30, 2}, DRM_FORMAT_ARGB2101010 }, \
  28}
  29
  30/*
  31 * Data-Format for Simple-Framebuffers
  32 * @name: unique 0-terminated name that can be used to identify the mode
  33 * @red,green,blue: Offsets and sizes of the single RGB parts
  34 * @transp: Offset and size of the alpha bits. length=0 means no alpha
  35 * @fourcc: 32bit DRM four-CC code (see drm_fourcc.h)
  36 */
  37struct simplefb_format {
  38        const char *name;
  39        u32 bits_per_pixel;
  40        struct fb_bitfield red;
  41        struct fb_bitfield green;
  42        struct fb_bitfield blue;
  43        struct fb_bitfield transp;
  44        u32 fourcc;
  45};
  46
  47/*
  48 * Simple-Framebuffer description
  49 * If the arch-boot code creates simple-framebuffers without DT support, it
  50 * can pass the width, height, stride and format via this platform-data object.
  51 * The framebuffer location must be given as IORESOURCE_MEM resource.
  52 * @format must be a format as described in "struct simplefb_format" above.
  53 */
  54struct simplefb_platform_data {
  55        u32 width;
  56        u32 height;
  57        u32 stride;
  58        const char *format;
  59};
  60
  61#endif /* __PLATFORM_DATA_SIMPLEFB_H__ */
  62