1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * simplefb.h - Simple Framebuffer Device 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright (C) 2013 David Herrmann <dh.herrmann@gmail.com> 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun #ifndef __PLATFORM_DATA_SIMPLEFB_H__ 9*4882a593Smuzhiyun #define __PLATFORM_DATA_SIMPLEFB_H__ 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #include <drm/drm_fourcc.h> 12*4882a593Smuzhiyun #include <linux/fb.h> 13*4882a593Smuzhiyun #include <linux/types.h> 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun /* format array, use it to initialize a "struct simplefb_format" array */ 16*4882a593Smuzhiyun #define SIMPLEFB_FORMATS \ 17*4882a593Smuzhiyun { \ 18*4882a593Smuzhiyun { "r5g6b5", 16, {11, 5}, {5, 6}, {0, 5}, {0, 0}, DRM_FORMAT_RGB565 }, \ 19*4882a593Smuzhiyun { "x1r5g5b5", 16, {10, 5}, {5, 5}, {0, 5}, {0, 0}, DRM_FORMAT_XRGB1555 }, \ 20*4882a593Smuzhiyun { "a1r5g5b5", 16, {10, 5}, {5, 5}, {0, 5}, {15, 1}, DRM_FORMAT_ARGB1555 }, \ 21*4882a593Smuzhiyun { "r8g8b8", 24, {16, 8}, {8, 8}, {0, 8}, {0, 0}, DRM_FORMAT_RGB888 }, \ 22*4882a593Smuzhiyun { "x8r8g8b8", 32, {16, 8}, {8, 8}, {0, 8}, {0, 0}, DRM_FORMAT_XRGB8888 }, \ 23*4882a593Smuzhiyun { "a8r8g8b8", 32, {16, 8}, {8, 8}, {0, 8}, {24, 8}, DRM_FORMAT_ARGB8888 }, \ 24*4882a593Smuzhiyun { "a8b8g8r8", 32, {0, 8}, {8, 8}, {16, 8}, {24, 8}, DRM_FORMAT_ABGR8888 }, \ 25*4882a593Smuzhiyun { "x2r10g10b10", 32, {20, 10}, {10, 10}, {0, 10}, {0, 0}, DRM_FORMAT_XRGB2101010 }, \ 26*4882a593Smuzhiyun { "a2r10g10b10", 32, {20, 10}, {10, 10}, {0, 10}, {30, 2}, DRM_FORMAT_ARGB2101010 }, \ 27*4882a593Smuzhiyun } 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun /* 30*4882a593Smuzhiyun * Data-Format for Simple-Framebuffers 31*4882a593Smuzhiyun * @name: unique 0-terminated name that can be used to identify the mode 32*4882a593Smuzhiyun * @red,green,blue: Offsets and sizes of the single RGB parts 33*4882a593Smuzhiyun * @transp: Offset and size of the alpha bits. length=0 means no alpha 34*4882a593Smuzhiyun * @fourcc: 32bit DRM four-CC code (see drm_fourcc.h) 35*4882a593Smuzhiyun */ 36*4882a593Smuzhiyun struct simplefb_format { 37*4882a593Smuzhiyun const char *name; 38*4882a593Smuzhiyun u32 bits_per_pixel; 39*4882a593Smuzhiyun struct fb_bitfield red; 40*4882a593Smuzhiyun struct fb_bitfield green; 41*4882a593Smuzhiyun struct fb_bitfield blue; 42*4882a593Smuzhiyun struct fb_bitfield transp; 43*4882a593Smuzhiyun u32 fourcc; 44*4882a593Smuzhiyun }; 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun /* 47*4882a593Smuzhiyun * Simple-Framebuffer description 48*4882a593Smuzhiyun * If the arch-boot code creates simple-framebuffers without DT support, it 49*4882a593Smuzhiyun * can pass the width, height, stride and format via this platform-data object. 50*4882a593Smuzhiyun * The framebuffer location must be given as IORESOURCE_MEM resource. 51*4882a593Smuzhiyun * @format must be a format as described in "struct simplefb_format" above. 52*4882a593Smuzhiyun */ 53*4882a593Smuzhiyun struct simplefb_platform_data { 54*4882a593Smuzhiyun u32 width; 55*4882a593Smuzhiyun u32 height; 56*4882a593Smuzhiyun u32 stride; 57*4882a593Smuzhiyun const char *format; 58*4882a593Smuzhiyun }; 59*4882a593Smuzhiyun 60*4882a593Smuzhiyun #endif /* __PLATFORM_DATA_SIMPLEFB_H__ */ 61