8887086ef2
Move the fbdev function for displaying boot-up logos into their own file fb_logo.c. Only build fb_logo.c if CONFIG_LOGO has been selected. No functional changes. v2: * include fb_internal.h (kernel test robot) * simplify option-parsing ifdefs * build fb_logo.o iff CONFIG_LOGO has been set Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230907085408.9354-6-tzimmermann@suse.de
84 lines
1.8 KiB
C
84 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _FB_INTERNAL_H
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#define _FB_INTERNAL_H
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#include <linux/device.h>
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#include <linux/fb.h>
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#include <linux/mutex.h>
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/* fb_devfs.c */
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#if defined(CONFIG_FB_DEVICE)
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int fb_register_chrdev(void);
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void fb_unregister_chrdev(void);
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#else
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static inline int fb_register_chrdev(void)
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{
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return 0;
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}
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static inline void fb_unregister_chrdev(void)
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{ }
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#endif
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/* fb_logo.c */
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#if defined(CONFIG_LOGO)
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extern bool fb_center_logo;
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extern int fb_logo_count;
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int fb_prepare_logo(struct fb_info *fb_info, int rotate);
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int fb_show_logo(struct fb_info *fb_info, int rotate);
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#else
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static inline int fb_prepare_logo(struct fb_info *info, int rotate)
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{
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return 0;
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}
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static inline int fb_show_logo(struct fb_info *info, int rotate)
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{
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return 0;
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}
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#endif /* CONFIG_LOGO */
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/* fbmem.c */
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extern struct class *fb_class;
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extern struct mutex registration_lock;
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extern struct fb_info *registered_fb[FB_MAX];
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extern int num_registered_fb;
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struct fb_info *get_fb_info(unsigned int idx);
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void put_fb_info(struct fb_info *fb_info);
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/* fb_procfs.c */
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#if defined(CONFIG_FB_DEVICE)
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int fb_init_procfs(void);
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void fb_cleanup_procfs(void);
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#else
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static inline int fb_init_procfs(void)
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{
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return 0;
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}
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static inline void fb_cleanup_procfs(void)
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{ }
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#endif
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/* fbsysfs.c */
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#if defined(CONFIG_FB_DEVICE)
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int fb_device_create(struct fb_info *fb_info);
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void fb_device_destroy(struct fb_info *fb_info);
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#else
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static inline int fb_device_create(struct fb_info *fb_info)
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{
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/*
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* Acquire a reference on the parent device to avoid
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* unplug operations behind our back. With the fbdev
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* device enabled, this is performed within register_device().
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*/
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get_device(fb_info->device);
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return 0;
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}
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static inline void fb_device_destroy(struct fb_info *fb_info)
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{
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/* Undo the get_device() from fb_device_create() */
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put_device(fb_info->device);
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}
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#endif
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#endif
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