Here is a patch that had Geert's blessing. This patch is to introduce a
new api for the frmaebuffer layer that will massively cleanup this
subsystem. Please apply. Thank you.
--- linux-2.5.0/include/linux/fb.h Wed Nov 28 16:43:10 2001
+++ linux/include/linux/fb.h Thu Nov 29 11:02:26 2001
@@ -241,6 +241,39 @@
__u32 reserved[4]; /* reserved for future compatibility */
};
+/* Internal HW accel */
+#define ROP_COPY 0
+#define ROP_XOR 1
+
+struct fb_copyarea {
+ __u32 sx; /* screen-relative */
+ __u32 sy;
+ __u32 width;
+ __u32 height;
+ __u32 dx;
+ __u32 dy;
+};
+
+struct fb_fillrect {
+ __u32 dx; /* screen-relative */
+ __u32 dy;
+ __u32 width;
+ __u32 height;
+ __u32 color;
+ __u32 rop;
+};
+
+struct fb_image {
+ __u32 width; /* Size of image */
+ __u32 height;
+ __u16 dx; /* Where to place image */
+ __u16 dy;
+ __u32 fg_color; /* Only used when a mono bitmap */
+ __u32 bg_color;
+ __u8 depth; /* Dpeth of the image */
+ char *data; /* Pointer to image data */
+};
+
#ifdef __KERNEL__
#if 1 /* to go away in 2.5.0 */
@@ -250,10 +283,10 @@
#endif
#include <linux/fs.h>
+#include <linux/poll.h>
#include <linux/init.h>
#include <linux/devfs_fs_kernel.h>
-
struct fb_info;
struct fb_info_gen;
struct vm_area_struct;
@@ -283,9 +316,25 @@
/* set colormap */
int (*fb_set_cmap)(struct fb_cmap *cmap, int kspc, int con,
struct fb_info *info);
- /* pan display (optional) */
- int (*fb_pan_display)(struct fb_var_screeninfo *var, int con,
- struct fb_info *info);
+ /* checks var and creates a par based on it */
+ int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
+ /* set the video mode according to par */
+ int (*fb_set_par)(struct fb_info *info);
+ /* set color register */
+ int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
+ unsigned blue, unsigned transp, struct fb_info *info);
+ /* blank display */
+ int (*fb_blank)(int blank, struct fb_info *info);
+ /* pan display */
+ int (*fb_pan_display)(struct fb_var_screeninfo *var, int con, struct fb_info *info);
+ /* draws a rectangle */
+ void (*fb_fillrect)(struct fb_info *p, struct fb_fillrect *rect);
+ /* Copy data from area to another */
+ void (*fb_copyarea)(struct fb_info *p, struct fb_copyarea *region);
+ /* Draws a image to the display */
+ void (*fb_imageblit)(struct fb_info *p, struct fb_image *image);
+ /* perform polling on fb device */
+ int (*fb_poll)(struct fb_info *info, poll_table *wait);
/* perform fb specific ioctl (optional) */
int (*fb_ioctl)(struct inode *inode, struct file *file, unsigned int cmd,
unsigned long arg, int con, struct fb_info *info);
@@ -309,6 +358,7 @@
char *screen_base; /* Virtual address */
struct display *disp; /* initial display variable */
struct vc_data *display_fg; /* Console visible on this display */
+ int currcon; /* Current VC. */
char fontname[40]; /* default font name */
devfs_handle_t devfs_handle; /* Devfs handle for new name */
devfs_handle_t devfs_lhandle; /* Devfs handle for compat. symlink */
@@ -387,6 +437,9 @@
struct fb_info *info);
extern int fbgen_pan_display(struct fb_var_screeninfo *var, int con,
struct fb_info *info);
+extern void cfb_fillrect(struct fb_info *p, struct fb_fillrect *rect);
+extern void cfb_copyarea(struct fb_info *p, struct fb_copyarea *region);
+extern void cfb_imageblit(struct fb_info *p, struct fb_image *image);
/*
* Helper functions
@@ -400,6 +453,7 @@
extern int fbgen_switch(int con, struct fb_info *info);
extern void fbgen_blank(int blank, struct fb_info *info);
+extern void fbgen2_set_disp(int con, struct fb_info *info);
/* drivers/video/fbmem.c */
extern int register_framebuffer(struct fb_info *fb_info);