From f9004dbfff8a3fbbd7e2a88c8a4327c7f2f8e5b2 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 01:04:47 +0000
Subject: [PATCH] add driver 5G
---
kernel/include/linux/fb.h | 93 +++++++++++++++++-----------------------------
1 files changed, 35 insertions(+), 58 deletions(-)
diff --git a/kernel/include/linux/fb.h b/kernel/include/linux/fb.h
index 3d55d4b..ecfbcc0 100644
--- a/kernel/include/linux/fb.h
+++ b/kernel/include/linux/fb.h
@@ -124,45 +124,17 @@
* Register/unregister for framebuffer events
*/
-/* The resolution of the passed in fb_info about to change */
+/* The resolution of the passed in fb_info about to change */
#define FB_EVENT_MODE_CHANGE 0x01
-/* The display on this fb_info is being suspended, no access to the
- * framebuffer is allowed any more after that call returns
- */
-#define FB_EVENT_SUSPEND 0x02
-/* The display on this fb_info was resumed, you can restore the display
- * if you own it
- */
-#define FB_EVENT_RESUME 0x03
-/* An entry from the modelist was removed */
-#define FB_EVENT_MODE_DELETE 0x04
-/* A driver registered itself */
+
+#ifdef CONFIG_GUMSTIX_AM200EPD
+/* only used by mach-pxa/am200epd.c */
#define FB_EVENT_FB_REGISTERED 0x05
-/* A driver unregistered itself */
#define FB_EVENT_FB_UNREGISTERED 0x06
-/* CONSOLE-SPECIFIC: get console to framebuffer mapping */
-#define FB_EVENT_GET_CONSOLE_MAP 0x07
-/* CONSOLE-SPECIFIC: set console to framebuffer mapping */
-#define FB_EVENT_SET_CONSOLE_MAP 0x08
-/* A hardware display blank change occurred */
+#endif
+
+/* A display blank is requested */
#define FB_EVENT_BLANK 0x09
-/* Private modelist is to be replaced */
-#define FB_EVENT_NEW_MODELIST 0x0A
-/* The resolution of the passed in fb_info about to change and
- all vc's should be changed */
-#define FB_EVENT_MODE_CHANGE_ALL 0x0B
-/* A software display blank change occurred */
-#define FB_EVENT_CONBLANK 0x0C
-/* Get drawing requirements */
-#define FB_EVENT_GET_REQ 0x0D
-/* Unbind from the console if possible */
-#define FB_EVENT_FB_UNBIND 0x0E
-/* CONSOLE-SPECIFIC: remap all consoles to new fb - for vga_switcheroo */
-#define FB_EVENT_REMAP_ALL_CONSOLE 0x0F
-/* A hardware display blank early change occurred */
-#define FB_EARLY_EVENT_BLANK 0x10
-/* A hardware display blank revert early change occurred */
-#define FB_R_EARLY_EVENT_BLANK 0x11
struct fb_event {
struct fb_info *info;
@@ -321,9 +293,6 @@
/* called at KDB enter and leave time to prepare the console */
int (*fb_debug_enter)(struct fb_info *info);
int (*fb_debug_leave)(struct fb_info *info);
-
- /* Export the frame buffer as a dmabuf object */
- struct dma_buf *(*fb_dmabuf_export)(struct fb_info *info);
};
#ifdef CONFIG_FB_TILEBLITTING
@@ -431,8 +400,6 @@
#define FBINFO_HWACCEL_YPAN 0x2000 /* optional */
#define FBINFO_HWACCEL_YWRAP 0x4000 /* optional */
-#define FBINFO_MISC_USEREVENT 0x10000 /* event request
- from userspace */
#define FBINFO_MISC_TILEBLITTING 0x20000 /* use tile blitting */
/* A driver may set this flag to indicate that it does want a set_par to be
@@ -459,10 +426,13 @@
* and host endianness. Drivers should not use this flag.
*/
#define FBINFO_BE_MATH 0x100000
+/*
+ * Hide smem_start in the FBIOGET_FSCREENINFO IOCTL. This is used by modern DRM
+ * drivers to stop userspace from trying to share buffers behind the kernel's
+ * back. Instead dma-buf based buffer sharing should be used.
+ */
+#define FBINFO_HIDE_SMEM_START 0x200000
-/* report to the VT layer that this fb driver can accept forced console
- output like oopses */
-#define FBINFO_CAN_FORCE_OUTPUT 0x200000
struct fb_info {
atomic_t count;
@@ -485,14 +455,14 @@
struct list_head modelist; /* mode list */
struct fb_videomode *mode; /* current mode */
-#ifdef CONFIG_FB_BACKLIGHT
+#if IS_ENABLED(CONFIG_FB_BACKLIGHT)
/* assigned backlight device */
- /* set before framebuffer registration,
+ /* set before framebuffer registration,
remove after unregister */
struct backlight_device *bl_dev;
/* Backlight level curve */
- struct mutex bl_curve_mutex;
+ struct mutex bl_curve_mutex;
u8 bl_curve[FB_BACKLIGHT_LEVELS];
#endif
#ifdef CONFIG_FB_DEFERRED_IO
@@ -500,7 +470,7 @@
struct fb_deferred_io *fbdefio;
#endif
- struct fb_ops *fbops;
+ const struct fb_ops *fbops;
struct device *device; /* This is the parent */
struct device *dev; /* This is this fb device */
int class_flag; /* private sysfs flags */
@@ -511,8 +481,8 @@
char __iomem *screen_base; /* Virtual address */
char *screen_buffer;
};
- unsigned long screen_size; /* Amount of ioremapped VRAM or 0 */
- void *pseudo_palette; /* Fake palette of 16 colors */
+ unsigned long screen_size; /* Amount of ioremapped VRAM or 0 */
+ void *pseudo_palette; /* Fake palette of 16 colors */
#define FBINFO_STATE_RUNNING 0
#define FBINFO_STATE_SUSPENDED 1
u32 state; /* Hardware state i.e suspend */
@@ -534,8 +504,9 @@
};
static inline struct apertures_struct *alloc_apertures(unsigned int max_num) {
- struct apertures_struct *a = kzalloc(sizeof(struct apertures_struct)
- + max_num * sizeof(struct aperture), GFP_KERNEL);
+ struct apertures_struct *a;
+
+ a = kzalloc(struct_size(a, ranges, max_num), GFP_KERNEL);
if (!a)
return NULL;
a->count = max_num;
@@ -614,11 +585,11 @@
* `Generic' versions of the frame buffer device operations
*/
-extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
-extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
+extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var);
+extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var);
extern int fb_blank(struct fb_info *info, int blank);
-extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
-extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
+extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
+extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image);
/*
* Drawing operations where framebuffer is in system RAM
@@ -633,8 +604,9 @@
/* drivers/video/fbmem.c */
extern int register_framebuffer(struct fb_info *fb_info);
-extern int unregister_framebuffer(struct fb_info *fb_info);
-extern int unlink_framebuffer(struct fb_info *fb_info);
+extern void unregister_framebuffer(struct fb_info *fb_info);
+extern int remove_conflicting_pci_framebuffers(struct pci_dev *pdev,
+ const char *name);
extern int remove_conflicting_framebuffers(struct apertures_struct *a,
const char *name, bool primary);
extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
@@ -651,13 +623,18 @@
extern struct fb_info *registered_fb[FB_MAX];
extern int num_registered_fb;
+extern bool fb_center_logo;
+extern int fb_logo_count;
extern struct class *fb_class;
#define for_each_registered_fb(i) \
for (i = 0; i < FB_MAX; i++) \
if (!registered_fb[i]) {} else
-extern int lock_fb_info(struct fb_info *info);
+static inline void lock_fb_info(struct fb_info *info)
+{
+ mutex_lock(&info->lock);
+}
static inline void unlock_fb_info(struct fb_info *info)
{
--
Gitblit v1.6.2