linux-stable/include/linux/sysfb.h
Javier Martinez Canillas d391c58271 drivers/firmware: move x86 Generic System Framebuffers support
The x86 architecture has generic support to register a system framebuffer
platform device. It either registers a "simple-framebuffer" if the config
option CONFIG_X86_SYSFB is enabled, or a legacy VGA/VBE/EFI FB device.

But the code is generic enough to be reused by other architectures and can
be moved out of the arch/x86 directory.

This will allow to also support the simple{fb,drm} drivers on non-x86 EFI
platforms, such as aarch64 where these drivers are only supported with DT.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Borislav Petkov <bp@suse.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210625130947.1803678-2-javierm@redhat.com
2021-07-21 12:04:56 +02:00

94 lines
2.3 KiB
C

/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _LINUX_SYSFB_H
#define _LINUX_SYSFB_H
/*
* Generic System Framebuffers on x86
* Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com>
*/
#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 /* _LINUX_SYSFB_H */