source "drivers/rapidio/Kconfig"
+config X86_SYSFB
+ bool "Mark VGA/VBE/EFI FB as generic system framebuffer"
+ help
+ Firmwares often provide initial graphics framebuffers so the BIOS,
+ bootloader or kernel can show basic video-output during boot for
+ user-guidance and debugging. Historically, x86 used the VESA BIOS
+ Extensions and EFI-framebuffers for this, which are mostly limited
+ to x86.
+ This option, if enabled, marks VGA/VBE/EFI framebuffers as generic
+ framebuffers so the new generic system-framebuffer drivers can be
+ used on x86. If the framebuffer is not compatible with the generic
+ modes, it is adverticed as fallback platform framebuffer so legacy
+ drivers like efifb, vesafb and uvesafb can pick it up.
+ If this option is not selected, all system framebuffers are always
+ marked as fallback platform framebuffers as usual.
+
+ Note: Legacy fbdev drivers, including vesafb, efifb, uvesafb, will
+ not be able to pick up generic system framebuffers if this option
+ is selected. You are highly encouraged to enable simplefb as
+ replacement if you select this option. simplefb can correctly deal
+ with generic system framebuffers. But you should still keep vesafb
+ and others enabled as fallback if a system framebuffer is
+ incompatible with simplefb.
+
+ If unsure, say Y.
+
endmenu
--- /dev/null
+#ifndef _ARCH_X86_KERNEL_SYSFB_H
+#define _ARCH_X86_KERNEL_SYSFB_H
+
+/*
+ * Generic System Framebuffers on x86
+ * Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/platform_data/simplefb.h>
+#include <linux/screen_info.h>
+
+enum {
+ M_I17, /* 17-Inch iMac */
+ M_I20, /* 20-Inch iMac */
+ M_I20_SR, /* 20-Inch iMac (Santa Rosa) */
+ M_I24, /* 24-Inch iMac */
+ M_I24_8_1, /* 24-Inch iMac, 8,1th gen */
+ M_I24_10_1, /* 24-Inch iMac, 10,1th gen */
+ M_I27_11_1, /* 27-Inch iMac, 11,1th gen */
+ M_MINI, /* Mac Mini */
+ M_MINI_3_1, /* Mac Mini, 3,1th gen */
+ M_MINI_4_1, /* Mac Mini, 4,1th gen */
+ M_MB, /* MacBook */
+ M_MB_2, /* MacBook, 2nd rev. */
+ M_MB_3, /* MacBook, 3rd rev. */
+ M_MB_5_1, /* MacBook, 5th rev. */
+ M_MB_6_1, /* MacBook, 6th rev. */
+ M_MB_7_1, /* MacBook, 7th rev. */
+ M_MB_SR, /* MacBook, 2nd gen, (Santa Rosa) */
+ M_MBA, /* MacBook Air */
+ M_MBA_3, /* Macbook Air, 3rd rev */
+ M_MBP, /* MacBook Pro */
+ M_MBP_2, /* MacBook Pro 2nd gen */
+ M_MBP_2_2, /* MacBook Pro 2,2nd gen */
+ M_MBP_SR, /* MacBook Pro (Santa Rosa) */
+ M_MBP_4, /* MacBook Pro, 4th gen */
+ M_MBP_5_1, /* MacBook Pro, 5,1th gen */
+ M_MBP_5_2, /* MacBook Pro, 5,2th gen */
+ M_MBP_5_3, /* MacBook Pro, 5,3rd gen */
+ M_MBP_6_1, /* MacBook Pro, 6,1th gen */
+ M_MBP_6_2, /* MacBook Pro, 6,2th gen */
+ M_MBP_7_1, /* MacBook Pro, 7,1th gen */
+ M_MBP_8_2, /* MacBook Pro, 8,2nd gen */
+ M_UNKNOWN /* placeholder */
+};
+
+struct efifb_dmi_info {
+ char *optname;
+ unsigned long base;
+ int stride;
+ int width;
+ int height;
+ int flags;
+};
+
+#ifdef CONFIG_EFI
+
+extern struct efifb_dmi_info efifb_dmi_list[];
+void sysfb_apply_efi_quirks(void);
+
+#else /* CONFIG_EFI */
+
+static inline void sysfb_apply_efi_quirks(void)
+{
+}
+
+#endif /* CONFIG_EFI */
+
+#ifdef CONFIG_X86_SYSFB
+
+bool parse_mode(const struct screen_info *si,
+ struct simplefb_platform_data *mode);
+int create_simplefb(const struct screen_info *si,
+ const struct simplefb_platform_data *mode);
+
+#else /* CONFIG_X86_SYSFB */
+
+static inline bool parse_mode(const struct screen_info *si,
+ struct simplefb_platform_data *mode)
+{
+ return false;
+}
+
+static inline int create_simplefb(const struct screen_info *si,
+ const struct simplefb_platform_data *mode)
+{
+ return -EINVAL;
+}
+
+#endif /* CONFIG_X86_SYSFB */
+
+#endif /* _ARCH_X86_KERNEL_SYSFB_H */
obj-$(CONFIG_SWIOTLB) += pci-swiotlb.o
obj-$(CONFIG_OF) += devicetree.o
obj-$(CONFIG_UPROBES) += uprobes.o
+obj-y += sysfb.o
+obj-$(CONFIG_X86_SYSFB) += sysfb_simplefb.o
+obj-$(CONFIG_EFI) += sysfb_efi.o
obj-$(CONFIG_PERF_EVENTS) += perf_regs.o
obj-$(CONFIG_TRACING) += tracepoint.o
--- /dev/null
+/*
+ * Generic System Framebuffers on x86
+ * Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+/*
+ * Simple-Framebuffer support for x86 systems
+ * Create a platform-device for any available boot framebuffer. The
+ * simple-framebuffer platform device is already available on DT systems, so
+ * this module parses the global "screen_info" object and creates a suitable
+ * platform device compatible with the "simple-framebuffer" DT object. If
+ * the framebuffer is incompatible, we instead create a legacy
+ * "vesa-framebuffer", "efi-framebuffer" or "platform-framebuffer" device and
+ * pass the screen_info as platform_data. This allows legacy drivers
+ * to pick these devices up without messing with simple-framebuffer drivers.
+ * The global "screen_info" is still valid at all times.
+ *
+ * If CONFIG_X86_SYSFB is not selected, we never register "simple-framebuffer"
+ * platform devices, but only use legacy framebuffer devices for
+ * backwards compatibility.
+ *
+ * TODO: We set the dev_id field of all platform-devices to 0. This allows
+ * other x86 OF/DT parsers to create such devices, too. However, they must
+ * start at offset 1 for this to work.
+ */
+
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/platform_data/simplefb.h>
+#include <linux/platform_device.h>
+#include <linux/screen_info.h>
+#include <asm/sysfb.h>
+
+static __init int sysfb_init(void)
+{
+ struct screen_info *si = &screen_info;
+ struct simplefb_platform_data mode;
+ struct platform_device *pd;
+ const char *name;
+ bool compatible;
+ int ret;
+
+ sysfb_apply_efi_quirks();
+
+ /* try to create a simple-framebuffer device */
+ compatible = parse_mode(si, &mode);
+ if (compatible) {
+ ret = create_simplefb(si, &mode);
+ if (!ret)
+ return 0;
+ }
+
+ /* if the FB is incompatible, create a legacy framebuffer device */
+ if (si->orig_video_isVGA == VIDEO_TYPE_EFI)
+ name = "efi-framebuffer";
+ else if (si->orig_video_isVGA == VIDEO_TYPE_VLFB)
+ name = "vesa-framebuffer";
+ else
+ name = "platform-framebuffer";
+
+ pd = platform_device_register_resndata(NULL, name, 0,
+ NULL, 0, si, sizeof(*si));
+ return IS_ERR(pd) ? PTR_ERR(pd) : 0;
+}
+
+/* must execute after PCI subsystem for EFI quirks */
+device_initcall(sysfb_init);
--- /dev/null
+/*
+ * Generic System Framebuffers on x86
+ * Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com>
+ *
+ * EFI Quirks Copyright (c) 2006 Edgar Hucek <gimli@dark-green.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+/*
+ * EFI Quirks
+ * Several EFI systems do not correctly advertise their boot framebuffers.
+ * Hence, we use this static table of known broken machines and fix up the
+ * information so framebuffer drivers can load corectly.
+ */
+
+#include <linux/dmi.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/pci.h>
+#include <linux/screen_info.h>
+#include <video/vga.h>
+#include <asm/sysfb.h>
+
+enum {
+ OVERRIDE_NONE = 0x0,
+ OVERRIDE_BASE = 0x1,
+ OVERRIDE_STRIDE = 0x2,
+ OVERRIDE_HEIGHT = 0x4,
+ OVERRIDE_WIDTH = 0x8,
+};
+
+struct efifb_dmi_info efifb_dmi_list[] = {
+ [M_I17] = { "i17", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
+ [M_I20] = { "i20", 0x80010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE }, /* guess */
+ [M_I20_SR] = { "imac7", 0x40010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE },
+ [M_I24] = { "i24", 0x80010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, /* guess */
+ [M_I24_8_1] = { "imac8", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
+ [M_I24_10_1] = { "imac10", 0xc0010000, 2048 * 4, 1920, 1080, OVERRIDE_NONE },
+ [M_I27_11_1] = { "imac11", 0xc0010000, 2560 * 4, 2560, 1440, OVERRIDE_NONE },
+ [M_MINI]= { "mini", 0x80000000, 2048 * 4, 1024, 768, OVERRIDE_NONE },
+ [M_MINI_3_1] = { "mini31", 0x40010000, 1024 * 4, 1024, 768, OVERRIDE_NONE },
+ [M_MINI_4_1] = { "mini41", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
+ [M_MB] = { "macbook", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
+ [M_MB_5_1] = { "macbook51", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
+ [M_MB_6_1] = { "macbook61", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
+ [M_MB_7_1] = { "macbook71", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
+ [M_MBA] = { "mba", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
+ /* 11" Macbook Air 3,1 passes the wrong stride */
+ [M_MBA_3] = { "mba3", 0, 2048 * 4, 0, 0, OVERRIDE_STRIDE },
+ [M_MBP] = { "mbp", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
+ [M_MBP_2] = { "mbp2", 0, 0, 0, 0, OVERRIDE_NONE }, /* placeholder */
+ [M_MBP_2_2] = { "mbp22", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
+ [M_MBP_SR] = { "mbp3", 0x80030000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
+ [M_MBP_4] = { "mbp4", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
+ [M_MBP_5_1] = { "mbp51", 0xc0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
+ [M_MBP_5_2] = { "mbp52", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
+ [M_MBP_5_3] = { "mbp53", 0xd0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
+ [M_MBP_6_1] = { "mbp61", 0x90030000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
+ [M_MBP_6_2] = { "mbp62", 0x90030000, 2048 * 4, 1680, 1050, OVERRIDE_NONE },
+ [M_MBP_7_1] = { "mbp71", 0xc0010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
+ [M_MBP_8_2] = { "mbp82", 0x90010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
+ [M_UNKNOWN] = { NULL, 0, 0, 0, 0, OVERRIDE_NONE }
+};
+
+#define choose_value(dmivalue, fwvalue, field, flags) ({ \
+ typeof(fwvalue) _ret_ = fwvalue; \
+ if ((flags) & (field)) \
+ _ret_ = dmivalue; \
+ else if ((fwvalue) == 0) \
+ _ret_ = dmivalue; \
+ _ret_; \
+ })
+
+static int __init efifb_set_system(const struct dmi_system_id *id)
+{
+ struct efifb_dmi_info *info = id->driver_data;
+
+ if (info->base == 0 && info->height == 0 && info->width == 0 &&
+ info->stride == 0)
+ return 0;
+
+ /* Trust the bootloader over the DMI tables */
+ if (screen_info.lfb_base == 0) {
+#if defined(CONFIG_PCI)
+ struct pci_dev *dev = NULL;
+ int found_bar = 0;
+#endif
+ if (info->base) {
+ screen_info.lfb_base = choose_value(info->base,
+ screen_info.lfb_base, OVERRIDE_BASE,
+ info->flags);
+
+#if defined(CONFIG_PCI)
+ /* make sure that the address in the table is actually
+ * on a VGA device's PCI BAR */
+
+ for_each_pci_dev(dev) {
+ int i;
+ if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
+ continue;
+ for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
+ resource_size_t start, end;
+
+ start = pci_resource_start(dev, i);
+ if (start == 0)
+ break;
+ end = pci_resource_end(dev, i);
+ if (screen_info.lfb_base >= start &&
+ screen_info.lfb_base < end) {
+ found_bar = 1;
+ }
+ }
+ }
+ if (!found_bar)
+ screen_info.lfb_base = 0;
+#endif
+ }
+ }
+ if (screen_info.lfb_base) {
+ screen_info.lfb_linelength = choose_value(info->stride,
+ screen_info.lfb_linelength, OVERRIDE_STRIDE,
+ info->flags);
+ screen_info.lfb_width = choose_value(info->width,
+ screen_info.lfb_width, OVERRIDE_WIDTH,
+ info->flags);
+ screen_info.lfb_height = choose_value(info->height,
+ screen_info.lfb_height, OVERRIDE_HEIGHT,
+ info->flags);
+ if (screen_info.orig_video_isVGA == 0)
+ screen_info.orig_video_isVGA = VIDEO_TYPE_EFI;
+ } else {
+ screen_info.lfb_linelength = 0;
+ screen_info.lfb_width = 0;
+ screen_info.lfb_height = 0;
+ screen_info.orig_video_isVGA = 0;
+ return 0;
+ }
+
+ printk(KERN_INFO "efifb: dmi detected %s - framebuffer at 0x%08x "
+ "(%dx%d, stride %d)\n", id->ident,
+ screen_info.lfb_base, screen_info.lfb_width,
+ screen_info.lfb_height, screen_info.lfb_linelength);
+
+ return 1;
+}
+
+#define EFIFB_DMI_SYSTEM_ID(vendor, name, enumid) \
+ { \
+ efifb_set_system, \
+ name, \
+ { \
+ DMI_MATCH(DMI_BIOS_VENDOR, vendor), \
+ DMI_MATCH(DMI_PRODUCT_NAME, name) \
+ }, \
+ &efifb_dmi_list[enumid] \
+ }
+
+static const struct dmi_system_id efifb_dmi_system_table[] __initconst = {
+ EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac4,1", M_I17),
+ /* At least one of these two will be right; maybe both? */
+ EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac5,1", M_I20),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac5,1", M_I20),
+ /* At least one of these two will be right; maybe both? */
+ EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac6,1", M_I24),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac6,1", M_I24),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac7,1", M_I20_SR),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac8,1", M_I24_8_1),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac10,1", M_I24_10_1),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac11,1", M_I27_11_1),
+ EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "Macmini1,1", M_MINI),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini3,1", M_MINI_3_1),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini4,1", M_MINI_4_1),
+ EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook1,1", M_MB),
+ /* At least one of these two will be right; maybe both? */
+ EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook2,1", M_MB),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook2,1", M_MB),
+ /* At least one of these two will be right; maybe both? */
+ EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook3,1", M_MB),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook3,1", M_MB),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook4,1", M_MB),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook5,1", M_MB_5_1),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook6,1", M_MB_6_1),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook7,1", M_MB_7_1),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir1,1", M_MBA),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir3,1", M_MBA_3),
+ EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro1,1", M_MBP),
+ EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,1", M_MBP_2),
+ EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,2", M_MBP_2_2),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro2,1", M_MBP_2),
+ EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro3,1", M_MBP_SR),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro3,1", M_MBP_SR),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro4,1", M_MBP_4),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,1", M_MBP_5_1),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,2", M_MBP_5_2),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,3", M_MBP_5_3),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,1", M_MBP_6_1),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,2", M_MBP_6_2),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro7,1", M_MBP_7_1),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro8,2", M_MBP_8_2),
+ {},
+};
+
+__init void sysfb_apply_efi_quirks(void)
+{
+ if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI ||
+ !(screen_info.capabilities & VIDEO_CAPABILITY_SKIP_QUIRKS))
+ dmi_check_system(efifb_dmi_system_table);
+}
--- /dev/null
+/*
+ * Generic System Framebuffers on x86
+ * Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+/*
+ * simple-framebuffer probing
+ * Try to convert "screen_info" into a "simple-framebuffer" compatible mode.
+ * If the mode is incompatible, we return "false" and let the caller create
+ * legacy nodes instead.
+ */
+
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/platform_data/simplefb.h>
+#include <linux/platform_device.h>
+#include <linux/screen_info.h>
+#include <asm/sysfb.h>
+
+static const char simplefb_resname[] = "BOOTFB";
+static const struct simplefb_format formats[] = SIMPLEFB_FORMATS;
+
+/* try parsing x86 screen_info into a simple-framebuffer mode struct */
+__init bool parse_mode(const struct screen_info *si,
+ struct simplefb_platform_data *mode)
+{
+ const struct simplefb_format *f;
+ __u8 type;
+ unsigned int i;
+
+ type = si->orig_video_isVGA;
+ if (type != VIDEO_TYPE_VLFB && type != VIDEO_TYPE_EFI)
+ return false;
+
+ for (i = 0; i < ARRAY_SIZE(formats); ++i) {
+ f = &formats[i];
+ if (si->lfb_depth == f->bits_per_pixel &&
+ si->red_size == f->red.length &&
+ si->red_pos == f->red.offset &&
+ si->green_size == f->green.length &&
+ si->green_pos == f->green.offset &&
+ si->blue_size == f->blue.length &&
+ si->blue_pos == f->blue.offset &&
+ si->rsvd_size == f->transp.length &&
+ si->rsvd_pos == f->transp.offset) {
+ mode->format = f->name;
+ mode->width = si->lfb_width;
+ mode->height = si->lfb_height;
+ mode->stride = si->lfb_linelength;
+ return true;
+ }
+ }
+
+ return false;
+}
+
+__init int create_simplefb(const struct screen_info *si,
+ const struct simplefb_platform_data *mode)
+{
+ struct platform_device *pd;
+ struct resource res;
+ unsigned long len;
+
+ /* don't use lfb_size as it may contain the whole VMEM instead of only
+ * the part that is occupied by the framebuffer */
+ len = mode->height * mode->stride;
+ len = PAGE_ALIGN(len);
+ if (len > si->lfb_size << 16) {
+ printk(KERN_WARNING "sysfb: VRAM smaller than advertised\n");
+ return -EINVAL;
+ }
+
+ /* setup IORESOURCE_MEM as framebuffer memory */
+ memset(&res, 0, sizeof(res));
+ res.flags = IORESOURCE_MEM;
+ res.name = simplefb_resname;
+ res.start = si->lfb_base;
+ res.end = si->lfb_base + len - 1;
+ if (res.end <= res.start)
+ return -EINVAL;
+
+ pd = platform_device_register_resndata(NULL, "simple-framebuffer", 0,
+ &res, 1, mode, sizeof(*mode));
+ if (IS_ERR(pd))
+ return PTR_ERR(pd);
+
+ return 0;
+}
config FB_SIMPLE
bool "Simple framebuffer support"
- depends on (FB = y) && OF
+ depends on (FB = y)
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
pre-allocated frame buffer surface.
Configuration re: surface address, size, and format must be provided
- through device tree, or potentially plain old platform data in the
- future.
+ through device tree, or plain old platform data.
source "drivers/video/omap/Kconfig"
source "drivers/video/omap2/Kconfig"
config FRAMEBUFFER_CONSOLE
tristate "Framebuffer Console support"
- depends on FB
+ depends on FB && !UML
+ select VT_HW_CONSOLE_BINDING
select CRC32
select FONT_SUPPORT
help
#include <linux/dmi.h>
#include <linux/pci.h>
#include <video/vga.h>
+#include <asm/sysfb.h>
static bool request_mem_succeeded = false;
.visual = FB_VISUAL_TRUECOLOR,
};
-enum {
- M_I17, /* 17-Inch iMac */
- M_I20, /* 20-Inch iMac */
- M_I20_SR, /* 20-Inch iMac (Santa Rosa) */
- M_I24, /* 24-Inch iMac */
- M_I24_8_1, /* 24-Inch iMac, 8,1th gen */
- M_I24_10_1, /* 24-Inch iMac, 10,1th gen */
- M_I27_11_1, /* 27-Inch iMac, 11,1th gen */
- M_MINI, /* Mac Mini */
- M_MINI_3_1, /* Mac Mini, 3,1th gen */
- M_MINI_4_1, /* Mac Mini, 4,1th gen */
- M_MB, /* MacBook */
- M_MB_2, /* MacBook, 2nd rev. */
- M_MB_3, /* MacBook, 3rd rev. */
- M_MB_5_1, /* MacBook, 5th rev. */
- M_MB_6_1, /* MacBook, 6th rev. */
- M_MB_7_1, /* MacBook, 7th rev. */
- M_MB_SR, /* MacBook, 2nd gen, (Santa Rosa) */
- M_MBA, /* MacBook Air */
- M_MBA_3, /* Macbook Air, 3rd rev */
- M_MBP, /* MacBook Pro */
- M_MBP_2, /* MacBook Pro 2nd gen */
- M_MBP_2_2, /* MacBook Pro 2,2nd gen */
- M_MBP_SR, /* MacBook Pro (Santa Rosa) */
- M_MBP_4, /* MacBook Pro, 4th gen */
- M_MBP_5_1, /* MacBook Pro, 5,1th gen */
- M_MBP_5_2, /* MacBook Pro, 5,2th gen */
- M_MBP_5_3, /* MacBook Pro, 5,3rd gen */
- M_MBP_6_1, /* MacBook Pro, 6,1th gen */
- M_MBP_6_2, /* MacBook Pro, 6,2th gen */
- M_MBP_7_1, /* MacBook Pro, 7,1th gen */
- M_MBP_8_2, /* MacBook Pro, 8,2nd gen */
- M_UNKNOWN /* placeholder */
-};
-
-#define OVERRIDE_NONE 0x0
-#define OVERRIDE_BASE 0x1
-#define OVERRIDE_STRIDE 0x2
-#define OVERRIDE_HEIGHT 0x4
-#define OVERRIDE_WIDTH 0x8
-
-static struct efifb_dmi_info {
- char *optname;
- unsigned long base;
- int stride;
- int width;
- int height;
- int flags;
-} dmi_list[] __initdata = {
- [M_I17] = { "i17", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
- [M_I20] = { "i20", 0x80010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE }, /* guess */
- [M_I20_SR] = { "imac7", 0x40010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE },
- [M_I24] = { "i24", 0x80010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, /* guess */
- [M_I24_8_1] = { "imac8", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
- [M_I24_10_1] = { "imac10", 0xc0010000, 2048 * 4, 1920, 1080, OVERRIDE_NONE },
- [M_I27_11_1] = { "imac11", 0xc0010000, 2560 * 4, 2560, 1440, OVERRIDE_NONE },
- [M_MINI]= { "mini", 0x80000000, 2048 * 4, 1024, 768, OVERRIDE_NONE },
- [M_MINI_3_1] = { "mini31", 0x40010000, 1024 * 4, 1024, 768, OVERRIDE_NONE },
- [M_MINI_4_1] = { "mini41", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
- [M_MB] = { "macbook", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
- [M_MB_5_1] = { "macbook51", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
- [M_MB_6_1] = { "macbook61", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
- [M_MB_7_1] = { "macbook71", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
- [M_MBA] = { "mba", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
- /* 11" Macbook Air 3,1 passes the wrong stride */
- [M_MBA_3] = { "mba3", 0, 2048 * 4, 0, 0, OVERRIDE_STRIDE },
- [M_MBP] = { "mbp", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
- [M_MBP_2] = { "mbp2", 0, 0, 0, 0, OVERRIDE_NONE }, /* placeholder */
- [M_MBP_2_2] = { "mbp22", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
- [M_MBP_SR] = { "mbp3", 0x80030000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
- [M_MBP_4] = { "mbp4", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
- [M_MBP_5_1] = { "mbp51", 0xc0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
- [M_MBP_5_2] = { "mbp52", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
- [M_MBP_5_3] = { "mbp53", 0xd0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
- [M_MBP_6_1] = { "mbp61", 0x90030000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
- [M_MBP_6_2] = { "mbp62", 0x90030000, 2048 * 4, 1680, 1050, OVERRIDE_NONE },
- [M_MBP_7_1] = { "mbp71", 0xc0010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
- [M_MBP_8_2] = { "mbp82", 0x90010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
- [M_UNKNOWN] = { NULL, 0, 0, 0, 0, OVERRIDE_NONE }
-};
-
-static int set_system(const struct dmi_system_id *id);
-
-#define EFIFB_DMI_SYSTEM_ID(vendor, name, enumid) \
- { set_system, name, { \
- DMI_MATCH(DMI_BIOS_VENDOR, vendor), \
- DMI_MATCH(DMI_PRODUCT_NAME, name) }, \
- &dmi_list[enumid] }
-
-static const struct dmi_system_id dmi_system_table[] __initconst = {
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac4,1", M_I17),
- /* At least one of these two will be right; maybe both? */
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac5,1", M_I20),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac5,1", M_I20),
- /* At least one of these two will be right; maybe both? */
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac6,1", M_I24),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac6,1", M_I24),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac7,1", M_I20_SR),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac8,1", M_I24_8_1),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac10,1", M_I24_10_1),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac11,1", M_I27_11_1),
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "Macmini1,1", M_MINI),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini3,1", M_MINI_3_1),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini4,1", M_MINI_4_1),
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook1,1", M_MB),
- /* At least one of these two will be right; maybe both? */
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook2,1", M_MB),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook2,1", M_MB),
- /* At least one of these two will be right; maybe both? */
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook3,1", M_MB),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook3,1", M_MB),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook4,1", M_MB),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook5,1", M_MB_5_1),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook6,1", M_MB_6_1),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook7,1", M_MB_7_1),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir1,1", M_MBA),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir3,1", M_MBA_3),
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro1,1", M_MBP),
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,1", M_MBP_2),
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,2", M_MBP_2_2),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro2,1", M_MBP_2),
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro3,1", M_MBP_SR),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro3,1", M_MBP_SR),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro4,1", M_MBP_4),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,1", M_MBP_5_1),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,2", M_MBP_5_2),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,3", M_MBP_5_3),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,1", M_MBP_6_1),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,2", M_MBP_6_2),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro7,1", M_MBP_7_1),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro8,2", M_MBP_8_2),
- {},
-};
-
-#define choose_value(dmivalue, fwvalue, field, flags) ({ \
- typeof(fwvalue) _ret_ = fwvalue; \
- if ((flags) & (field)) \
- _ret_ = dmivalue; \
- else if ((fwvalue) == 0) \
- _ret_ = dmivalue; \
- _ret_; \
- })
-
-static int set_system(const struct dmi_system_id *id)
-{
- struct efifb_dmi_info *info = id->driver_data;
-
- if (info->base == 0 && info->height == 0 && info->width == 0
- && info->stride == 0)
- return 0;
-
- /* Trust the bootloader over the DMI tables */
- if (screen_info.lfb_base == 0) {
-#if defined(CONFIG_PCI)
- struct pci_dev *dev = NULL;
- int found_bar = 0;
-#endif
- if (info->base) {
- screen_info.lfb_base = choose_value(info->base,
- screen_info.lfb_base, OVERRIDE_BASE,
- info->flags);
-
-#if defined(CONFIG_PCI)
- /* make sure that the address in the table is actually
- * on a VGA device's PCI BAR */
-
- for_each_pci_dev(dev) {
- int i;
- if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
- continue;
- for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
- resource_size_t start, end;
-
- start = pci_resource_start(dev, i);
- if (start == 0)
- break;
- end = pci_resource_end(dev, i);
- if (screen_info.lfb_base >= start &&
- screen_info.lfb_base < end) {
- found_bar = 1;
- }
- }
- }
- if (!found_bar)
- screen_info.lfb_base = 0;
-#endif
- }
- }
- if (screen_info.lfb_base) {
- screen_info.lfb_linelength = choose_value(info->stride,
- screen_info.lfb_linelength, OVERRIDE_STRIDE,
- info->flags);
- screen_info.lfb_width = choose_value(info->width,
- screen_info.lfb_width, OVERRIDE_WIDTH,
- info->flags);
- screen_info.lfb_height = choose_value(info->height,
- screen_info.lfb_height, OVERRIDE_HEIGHT,
- info->flags);
- if (screen_info.orig_video_isVGA == 0)
- screen_info.orig_video_isVGA = VIDEO_TYPE_EFI;
- } else {
- screen_info.lfb_linelength = 0;
- screen_info.lfb_width = 0;
- screen_info.lfb_height = 0;
- screen_info.orig_video_isVGA = 0;
- return 0;
- }
-
- printk(KERN_INFO "efifb: dmi detected %s - framebuffer at 0x%08x "
- "(%dx%d, stride %d)\n", id->ident,
- screen_info.lfb_base, screen_info.lfb_width,
- screen_info.lfb_height, screen_info.lfb_linelength);
-
-
- return 1;
-}
-
static int efifb_setcolreg(unsigned regno, unsigned red, unsigned green,
unsigned blue, unsigned transp,
struct fb_info *info)
default_vga = pdev;
}
-static int __init efifb_setup(char *options)
+static int efifb_setup(char *options)
{
char *this_opt;
int i;
if (!*this_opt) continue;
for (i = 0; i < M_UNKNOWN; i++) {
- if (!strcmp(this_opt, dmi_list[i].optname) &&
- dmi_list[i].base != 0) {
- screen_info.lfb_base = dmi_list[i].base;
- screen_info.lfb_linelength = dmi_list[i].stride;
- screen_info.lfb_width = dmi_list[i].width;
- screen_info.lfb_height = dmi_list[i].height;
+ if (!strcmp(this_opt, efifb_dmi_list[i].optname) &&
+ efifb_dmi_list[i].base != 0) {
+ screen_info.lfb_base = efifb_dmi_list[i].base;
+ screen_info.lfb_linelength = efifb_dmi_list[i].stride;
+ screen_info.lfb_width = efifb_dmi_list[i].width;
+ screen_info.lfb_height = efifb_dmi_list[i].height;
}
}
if (!strncmp(this_opt, "base:", 5))
return 0;
}
-static int __init efifb_probe(struct platform_device *dev)
+static int efifb_probe(struct platform_device *dev)
{
struct fb_info *info;
int err;
unsigned int size_vmode;
unsigned int size_remap;
unsigned int size_total;
+ char *option = NULL;
+
+ if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI)
+ return -ENODEV;
+
+ if (fb_get_options("efifb", &option))
+ return -ENODEV;
+ efifb_setup(option);
+
+ /* We don't get linelength from UGA Draw Protocol, only from
+ * EFI Graphics Protocol. So if it's not in DMI, and it's not
+ * passed in from the user, we really can't use the framebuffer.
+ */
+ if (!screen_info.lfb_linelength)
+ return -ENODEV;
if (!screen_info.lfb_depth)
screen_info.lfb_depth = 32;
}
static struct platform_driver efifb_driver = {
- .driver = {
- .name = "efifb",
+ .driver = {
+ .name = "efi-framebuffer",
+ .owner = THIS_MODULE,
},
+ .probe = efifb_probe,
};
-static struct platform_device efifb_device = {
- .name = "efifb",
-};
-
-static int __init efifb_init(void)
-{
- int ret;
- char *option = NULL;
-
- if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI ||
- !(screen_info.capabilities & VIDEO_CAPABILITY_SKIP_QUIRKS))
- dmi_check_system(dmi_system_table);
-
- if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI)
- return -ENODEV;
-
- if (fb_get_options("efifb", &option))
- return -ENODEV;
- efifb_setup(option);
-
- /* We don't get linelength from UGA Draw Protocol, only from
- * EFI Graphics Protocol. So if it's not in DMI, and it's not
- * passed in from the user, we really can't use the framebuffer.
- */
- if (!screen_info.lfb_linelength)
- return -ENODEV;
-
- ret = platform_device_register(&efifb_device);
- if (ret)
- return ret;
-
- /*
- * This is not just an optimization. We will interfere
- * with a real driver if we get reprobed, so don't allow
- * it.
- */
- ret = platform_driver_probe(&efifb_driver, efifb_probe);
- if (ret) {
- platform_device_unregister(&efifb_device);
- return ret;
- }
-
- return ret;
-}
-module_init(efifb_init);
-
+module_platform_driver(efifb_driver);
MODULE_LICENSE("GPL");
#include <linux/fb.h>
#include <linux/io.h>
#include <linux/module.h>
+#include <linux/platform_data/simplefb.h>
#include <linux/platform_device.h>
static struct fb_fix_screeninfo simplefb_fix = {
.fb_imageblit = cfb_imageblit,
};
-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;
-};
-
-static struct simplefb_format simplefb_formats[] = {
- { "r5g6b5", 16, {11, 5}, {5, 6}, {0, 5}, {0, 0} },
-};
+static struct simplefb_format simplefb_formats[] = SIMPLEFB_FORMATS;
struct simplefb_params {
u32 width;
return 0;
}
+static int simplefb_parse_pd(struct platform_device *pdev,
+ struct simplefb_params *params)
+{
+ struct simplefb_platform_data *pd = pdev->dev.platform_data;
+ int i;
+
+ params->width = pd->width;
+ params->height = pd->height;
+ params->stride = pd->stride;
+
+ params->format = NULL;
+ for (i = 0; i < ARRAY_SIZE(simplefb_formats); i++) {
+ if (strcmp(pd->format, simplefb_formats[i].name))
+ continue;
+
+ params->format = &simplefb_formats[i];
+ break;
+ }
+
+ if (!params->format) {
+ dev_err(&pdev->dev, "Invalid format value\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
static int simplefb_probe(struct platform_device *pdev)
{
int ret;
if (fb_get_options("simplefb", NULL))
return -ENODEV;
- ret = simplefb_parse_dt(pdev, ¶ms);
+ ret = -ENODEV;
+ if (pdev->dev.platform_data)
+ ret = simplefb_parse_pd(pdev, ¶ms);
+ else if (pdev->dev.of_node)
+ ret = simplefb_parse_dt(pdev, ¶ms);
+
if (ret)
return ret;
info->var.blue = params.format->blue;
info->var.transp = params.format->transp;
+ info->apertures = alloc_apertures(1);
+ if (!info->apertures) {
+ framebuffer_release(info);
+ return -ENOMEM;
+ }
+ info->apertures->ranges[0].base = info->fix.smem_start;
+ info->apertures->ranges[0].size = info->fix.smem_len;
+
info->fbops = &simplefb_ops;
- info->flags = FBINFO_DEFAULT;
+ info->flags = FBINFO_DEFAULT | FBINFO_MISC_FIRMWARE;
info->screen_base = devm_ioremap(&pdev->dev, info->fix.smem_start,
info->fix.smem_len);
if (!info->screen_base) {
/* --------------------------------------------------------------------- */
-static struct fb_var_screeninfo vesafb_defined __initdata = {
+static struct fb_var_screeninfo vesafb_defined = {
.activate = FB_ACTIVATE_NOW,
.height = -1,
.width = -1,
.vmode = FB_VMODE_NONINTERLACED,
};
-static struct fb_fix_screeninfo vesafb_fix __initdata = {
+static struct fb_fix_screeninfo vesafb_fix = {
.id = "VESA VGA",
.type = FB_TYPE_PACKED_PIXELS,
.accel = FB_ACCEL_NONE,
static int inverse __read_mostly;
static int mtrr __read_mostly; /* disable mtrr */
-static int vram_remap __initdata; /* Set amount of memory to be used */
-static int vram_total __initdata; /* Set total amount of memory */
+static int vram_remap; /* Set amount of memory to be used */
+static int vram_total; /* Set total amount of memory */
static int pmi_setpal __read_mostly = 1; /* pmi for palette changes ??? */
static int ypan __read_mostly; /* 0..nothing, 1..ypan, 2..ywrap */
static void (*pmi_start)(void) __read_mostly;
.fb_imageblit = cfb_imageblit,
};
-static int __init vesafb_setup(char *options)
+static int vesafb_setup(char *options)
{
char *this_opt;
return 0;
}
-static int __init vesafb_probe(struct platform_device *dev)
+static int vesafb_probe(struct platform_device *dev)
{
struct fb_info *info;
int i, err;
unsigned int size_vmode;
unsigned int size_remap;
unsigned int size_total;
+ char *option = NULL;
+
+ /* ignore error return of fb_get_options */
+ fb_get_options("vesafb", &option);
+ vesafb_setup(option);
if (screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB)
return -ENODEV;
}
static struct platform_driver vesafb_driver = {
- .driver = {
- .name = "vesafb",
+ .driver = {
+ .name = "vesa-framebuffer",
+ .owner = THIS_MODULE,
},
+ .probe = vesafb_probe,
};
-static struct platform_device *vesafb_device;
-
-static int __init vesafb_init(void)
-{
- int ret;
- char *option = NULL;
-
- /* ignore error return of fb_get_options */
- fb_get_options("vesafb", &option);
- vesafb_setup(option);
-
- vesafb_device = platform_device_alloc("vesafb", 0);
- if (!vesafb_device)
- return -ENOMEM;
-
- ret = platform_device_add(vesafb_device);
- if (!ret) {
- ret = platform_driver_probe(&vesafb_driver, vesafb_probe);
- if (ret)
- platform_device_del(vesafb_device);
- }
-
- if (ret) {
- platform_device_put(vesafb_device);
- vesafb_device = NULL;
- }
-
- return ret;
-}
-module_init(vesafb_init);
-
+module_platform_driver(vesafb_driver);
MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * simplefb.h - Simple Framebuffer Device
+ *
+ * Copyright (C) 2013 David Herrmann <dh.herrmann@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __PLATFORM_DATA_SIMPLEFB_H__
+#define __PLATFORM_DATA_SIMPLEFB_H__
+
+#include <drm/drm_fourcc.h>
+#include <linux/fb.h>
+#include <linux/kernel.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 }, \
+ { "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__ */
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