| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* |
| * simplefb.h - Simple Framebuffer Device |
| * |
| * Copyright (C) 2013 David Herrmann <dh.herrmann@gmail.com> |
| */ |
| |
| #ifndef __PLATFORM_DATA_SIMPLEFB_H__ |
| #define __PLATFORM_DATA_SIMPLEFB_H__ |
| |
| #include <drm/drm_fourcc.h> |
| #include <linux/fb.h> |
| #include <linux/types.h> |
| |
| /* format array, use it to initialize a "struct simplefb_format" array */ |
| #define SIMPLEFB_FORMATS \ |
| { \ |
| { "r5g6b5", 16, {11, 5}, {5, 6}, {0, 5}, {0, 0}, DRM_FORMAT_RGB565 }, \ |
| { "x1r5g5b5", 16, {10, 5}, {5, 5}, {0, 5}, {0, 0}, DRM_FORMAT_XRGB1555 }, \ |
| { "a1r5g5b5", 16, {10, 5}, {5, 5}, {0, 5}, {15, 1}, DRM_FORMAT_ARGB1555 }, \ |
| { "r8g8b8", 24, {16, 8}, {8, 8}, {0, 8}, {0, 0}, DRM_FORMAT_RGB888 }, \ |
| { "x8r8g8b8", 32, {16, 8}, {8, 8}, {0, 8}, {0, 0}, DRM_FORMAT_XRGB8888 }, \ |
| { "a8r8g8b8", 32, {16, 8}, {8, 8}, {0, 8}, {24, 8}, DRM_FORMAT_ARGB8888 }, \ |
| { "a8b8g8r8", 32, {0, 8}, {8, 8}, {16, 8}, {24, 8}, DRM_FORMAT_ABGR8888 }, \ |
| { "x2r10g10b10", 32, {20, 10}, {10, 10}, {0, 10}, {0, 0}, DRM_FORMAT_XRGB2101010 }, \ |
| { "a2r10g10b10", 32, {20, 10}, {10, 10}, {0, 10}, {30, 2}, DRM_FORMAT_ARGB2101010 }, \ |
| } |
| |
| /* |
| * Data-Format for Simple-Framebuffers |
| * @name: unique 0-terminated name that can be used to identify the mode |
| * @red,green,blue: Offsets and sizes of the single RGB parts |
| * @transp: Offset and size of the alpha bits. length=0 means no alpha |
| * @fourcc: 32bit DRM four-CC code (see drm_fourcc.h) |
| */ |
| struct simplefb_format { |
| const char *name; |
| u32 bits_per_pixel; |
| struct fb_bitfield red; |
| struct fb_bitfield green; |
| struct fb_bitfield blue; |
| struct fb_bitfield transp; |
| u32 fourcc; |
| }; |
| |
| /* |
| * Simple-Framebuffer description |
| * If the arch-boot code creates simple-framebuffers without DT support, it |
| * can pass the width, height, stride and format via this platform-data object. |
| * The framebuffer location must be given as IORESOURCE_MEM resource. |
| * @format must be a format as described in "struct simplefb_format" above. |
| */ |
| struct simplefb_platform_data { |
| u32 width; |
| u32 height; |
| u32 stride; |
| const char *format; |
| }; |
| |
| #endif /* __PLATFORM_DATA_SIMPLEFB_H__ */ |