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SubjectRe: [PATCH] accel wrapper again part 2

A bug was found in the other patch. This patch fixes a revc bug. With your
blessing I like to incorporate this patch into the DJ tree.

. ---
|o_o |
|:_/ | Give Micro$oft the Bird!!!!
// \ \ Use Linux!!!!
(| | )
/'_ _/`\
___)=(___/

diff -urN -X /home/jsimmons/dontdiff linux-2.5.3-dj5/drivers/video/Makefile linux/drivers/video/Makefile
--- linux-2.5.3-dj5/drivers/video/Makefile Mon Feb 11 11:37:39 2002
+++ linux/drivers/video/Makefile Mon Feb 11 12:00:48 2002
@@ -14,7 +14,7 @@
fbcon-vga.o fbcon-iplan2p2.o fbcon-iplan2p4.o \
fbcon-iplan2p8.o fbcon-vga-planes.o fbcon-cfb16.o \
fbcon-cfb2.o fbcon-cfb24.o fbcon-cfb32.o fbcon-cfb4.o \
- fbcon-cfb8.o fbcon-mac.o fbcon-mfb.o \
+ fbcon-cfb8.o fbcon-mac.o fbcon-mfb.o fbcon-accel.o \
cyber2000fb.o sa1100fb.o fbcon-hga.o

# Each configuration option enables a list of files.
@@ -137,6 +137,7 @@
obj-$(CONFIG_FBCON_VGA) += fbcon-vga.o
obj-$(CONFIG_FBCON_HGA) += fbcon-hga.o
obj-$(CONFIG_FBCON_STI) += fbcon-sti.o
+obj-$(CONFIG_FBCON_ACCEL) += fbcon-accel.o

include $(TOPDIR)/Rules.make

diff -urN -X /home/jsimmons/dontdiff linux-2.5.3-dj5/drivers/video/fbcon-accel.c linux/drivers/video/fbcon-accel.c
--- linux-2.5.3-dj5/drivers/video/fbcon-accel.c Wed Dec 31 16:00:00 1969
+++ linux/drivers/video/fbcon-accel.c Mon Feb 11 17:42:39 2002
@@ -0,0 +1,188 @@
+/*
+ * linux/drivers/video/fbcon-accel.c -- Framebuffer accel console wrapper
+ *
+ * Created 20 Feb 2001 by James Simmons <jsimmons@users.sf.net>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#include <linux/module.h>
+#include <linux/tty.h>
+#include <linux/console.h>
+#include <linux/string.h>
+#include <linux/fb.h>
+
+#include <video/fbcon.h>
+#include "fbcon-accel.h"
+
+void fbcon_accel_setup(struct display *p)
+{
+ p->next_line = p->fb_info->fix.line_length;
+ p->next_plane = 0;
+}
+
+void fbcon_accel_bmove(struct display *p, int sy, int sx, int dy, int dx,
+ int height, int width)
+{
+ struct fb_info *info = p->fb_info;
+ struct fb_copyarea area;
+
+ area.sx = sx * fontwidth(p);
+ area.sy = sy * fontheight(p);
+ area.dx = dx * fontwidth(p);
+ area.dy = dy * fontheight(p);
+ area.height = height * fontheight(p);
+ area.width = width * fontwidth(p);
+
+ info->fbops->fb_copyarea(info, &area);
+}
+
+void fbcon_accel_clear(struct vc_data *vc, struct display *p, int sy, int sx,
+ int height, int width)
+{
+ struct fb_info *info = p->fb_info;
+ struct fb_fillrect region;
+
+ region.color = attr_bgcol_ec(p,vc);
+ region.dx = sx * fontwidth(p);
+ region.dy = sy * fontheight(p);
+ region.width = width * fontwidth(p);
+ region.height = height * fontheight(p);
+ region.rop = ROP_COPY;
+
+ info->fbops->fb_fillrect(info, &region);
+}
+
+void fbcon_accel_putc(struct vc_data *vc, struct display *p, int c, int yy,
+ int xx)
+{
+ struct fb_info *info = p->fb_info;
+ unsigned short charmask = p->charmask;
+ unsigned int width = ((fontwidth(p)+7)>>3);
+ struct fb_image image;
+
+ image.fg_color = attr_fgcol(p, c);
+ image.bg_color = attr_bgcol(p, c);
+ image.dx = xx * fontwidth(p);
+ image.dy = yy * fontheight(p);
+ image.width = fontwidth(p);
+ image.height = fontheight(p);
+ image.depth = 1;
+ image.data = p->fontdata + (c & charmask)*fontheight(p)*width;
+
+ info->fbops->fb_imageblit(info, &image);
+}
+
+void fbcon_accel_putcs(struct vc_data *vc, struct display *p,
+ const unsigned short *s, int count, int yy, int xx)
+{
+ struct fb_info *info = p->fb_info;
+ unsigned short charmask = p->charmask;
+ unsigned int width = ((fontwidth(p)+7)>>3);
+ struct fb_image image;
+
+ image.fg_color = attr_fgcol(p, *s);
+ image.bg_color = attr_bgcol(p, *s);
+ image.dx = xx * fontwidth(p);
+ image.dy = yy * fontheight(p);
+ image.width = fontwidth(p);
+ image.height = fontheight(p);
+ image.depth = 1;
+
+ while (count--) {
+ image.data = p->fontdata +
+ (scr_readw(s++) & charmask) * fontheight(p) * width;
+ info->fbops->fb_imageblit(info, &image);
+ image.dx += fontwidth(p);
+ }
+}
+
+void fbcon_accel_revc(struct display *p, int xx, int yy)
+{
+ struct fb_info *info = p->fb_info;
+ struct fb_fillrect region;
+
+ region.color = attr_fgcol_ec(p, p->conp);
+ region.dx = xx * fontwidth(p);
+ region.dy = yy * fontheight(p);
+ region.width = fontwidth(p);
+ region.height = fontheight(p);
+ region.rop = ROP_XOR;
+
+ info->fbops->fb_fillrect(info, &region);
+}
+
+void fbcon_accel_clear_margins(struct vc_data *vc, struct display *p,
+ int bottom_only)
+{
+ struct fb_info *info = p->fb_info;
+ unsigned int cw = fontwidth(p);
+ unsigned int ch = fontheight(p);
+ unsigned int rw = info->var.xres % cw;
+ unsigned int bh = info->var.yres % ch;
+ unsigned int rs = info->var.xres - rw;
+ unsigned int bs = info->var.yres - bh;
+ struct fb_fillrect region;
+
+ region.color = attr_bgcol_ec(p,vc);
+ region.rop = ROP_COPY;
+
+ if (rw && !bottom_only) {
+ region.dx = info->var.xoffset + rs;
+ region.dy = 0;
+ region.width = rw;
+ region.height = info->var.yres_virtual;
+ info->fbops->fb_fillrect(info, &region);
+ }
+
+ if (bh) {
+ region.dx = info->var.xoffset;
+ region.dy = info->var.yoffset + bs;
+ region.width = rs;
+ region.height = bh;
+ info->fbops->fb_fillrect(info, &region);
+ }
+}
+
+ /*
+ * `switch' for the low level operations
+ */
+
+struct display_switch fbcon_accel = {
+ setup: fbcon_accel_setup,
+ bmove: fbcon_accel_bmove,
+ clear: fbcon_accel_clear,
+ putc: fbcon_accel_putc,
+ putcs: fbcon_accel_putcs,
+ revc: fbcon_accel_revc,
+ clear_margins: fbcon_accel_clear_margins,
+ fontwidthmask: FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
+};
+
+#ifdef MODULE
+MODULE_LICENSE("GPL");
+
+int init_module(void)
+{
+ return 0;
+}
+
+void cleanup_module(void)
+{}
+#endif /* MODULE */
+
+
+ /*
+ * Visible symbols for modules
+ */
+
+EXPORT_SYMBOL(fbcon_accel);
+EXPORT_SYMBOL(fbcon_accel_setup);
+EXPORT_SYMBOL(fbcon_accel_bmove);
+EXPORT_SYMBOL(fbcon_accel_clear);
+EXPORT_SYMBOL(fbcon_accel_putc);
+EXPORT_SYMBOL(fbcon_accel_putcs);
+EXPORT_SYMBOL(fbcon_accel_revc);
+EXPORT_SYMBOL(fbcon_accel_clear_margins);
diff -urN -X /home/jsimmons/dontdiff linux-2.5.3-dj5/drivers/video/fbcon-accel.h linux/drivers/video/fbcon-accel.h
--- linux-2.5.3-dj5/drivers/video/fbcon-accel.h Wed Dec 31 16:00:00 1969
+++ linux/drivers/video/fbcon-accel.h Mon Feb 11 12:11:29 2002
@@ -0,0 +1,34 @@
+/*
+ * FBcon low-level driver for 32 bpp packed pixel (cfb32)
+ */
+
+#ifndef _VIDEO_FBCON_ACCEL_H
+#define _VIDEO_FBCON_ACCEL_H
+
+#include <linux/config.h>
+
+#ifdef MODULE
+#if defined(CONFIG_FBCON_ACCEL) || defined(CONFIG_FBCON_ACCEL_MODULE)
+#define FBCON_HAS_ACCEL
+#endif
+#else
+#if defined(CONFIG_FBCON_ACCEL)
+#define FBCON_HAS_ACCEL
+#endif
+#endif
+
+extern struct display_switch fbcon_accel;
+extern void fbcon_accel_setup(struct display *p);
+extern void fbcon_accel_bmove(struct display *p, int sy, int sx, int dy,
+ int dx, int height, int width);
+extern void fbcon_accel_clear(struct vc_data *vc, struct display *p, int sy,
+ int sx, int height, int width);
+extern void fbcon_accel_putc(struct vc_data *vc, struct display *p, int c,
+ int yy, int xx);
+extern void fbcon_accel_putcs(struct vc_data *vc, struct display *p,
+ const unsigned short *s, int count, int yy, int xx);
+extern void fbcon_accel_revc(struct display *p, int xx, int yy);
+extern void fbcon_accel_clear_margins(struct vc_data *vc, struct display *p,
+ int bottom_only);
+
+#endif /* _VIDEO_FBCON_ACCEL_H */
diff -urN -X /home/jsimmons/dontdiff linux-2.5.3-dj5/drivers/video/fbgen.c linux/drivers/video/fbgen.c
--- linux-2.5.3-dj5/drivers/video/fbgen.c Mon Feb 11 11:37:40 2002
+++ linux/drivers/video/fbgen.c Mon Feb 11 17:43:11 2002
@@ -21,6 +21,14 @@
#include <asm/io.h>

#include <video/fbcon.h>
+#include <video/fbcon-mfb.h>
+#include <video/fbcon-cfb2.h>
+#include <video/fbcon-cfb4.h>
+#include <video/fbcon-cfb8.h>
+#include <video/fbcon-cfb16.h>
+#include <video/fbcon-cfb24.h>
+#include <video/fbcon-cfb32.h>
+#include "fbcon-accel.h"

/* ---- `Generic' versions of the frame buffer device operations ----------- */

@@ -56,6 +64,11 @@
return fbhw->encode_fix(fix, &par, info2);
}

+int gen_get_fix(struct fb_fix_screeninfo *fix, int con, struct fb_info *info)
+{
+ *fix = info->fix;
+ return 0;
+}

/**
* fbgen_get_var - get user defined part of display
@@ -84,6 +97,11 @@
return 0;
}

+int gen_get_var(struct fb_var_screeninfo *var, int con, struct fb_info *info)
+{
+ *var = info->var;
+ return 0;
+}

/**
* fbgen_set_var - set the user defined part of display
@@ -132,6 +150,41 @@
}


+int gen_set_var(struct fb_var_screeninfo *var, int con, struct fb_info *info)
+{
+ int err;
+
+ if (con < 0 || (memcpy(&info->var, var, sizeof(struct fb_var_screeninfo)))) {
+ if (!info->fbops->fb_check_var) {
+ *var = info->var;
+ return 0;
+ }
+
+ if ((err = info->fbops->fb_check_var(var, info)))
+ return err;
+
+ if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) {
+ info->var = *var;
+
+ gen_set_disp(con, info);
+
+ if (con == info->currcon) {
+ if (info->fbops->fb_set_par)
+ info->fbops->fb_set_par(info);
+
+ if (info->fbops->fb_pan_display)
+ info->fbops->fb_pan_display(&info->var, con, info);
+
+ fb_set_cmap(&info->cmap, 1, info);
+ }
+
+ if (info->changevar)
+ info->changevar(con);
+ }
+ }
+ return 0;
+}
+
/**
* fbgen_get_cmap - get the colormap
* @cmap: frame buffer colormap structure
@@ -164,6 +217,11 @@
return 0;
}

+int gen_get_cmap(struct fb_cmap *cmap, int kspc, int con, struct fb_info *info)
+{
+ fb_copy_cmap (&info->cmap, cmap, kspc ? 0 : 2);
+ return 0;
+}

/**
* fbgen_set_cmap - set the colormap
@@ -196,6 +254,30 @@
return 0;
}

+int gen_set_cmap(struct fb_cmap *cmap, int kspc, int con,
+ struct fb_info *info)
+{
+ struct display *disp = (con < 0) ? info->disp : (fb_display + con);
+ struct fb_cmap *dcmap = &disp->cmap;
+ int err = 0;
+
+ /* No colormap allocated ? */
+ if (!dcmap->len) {
+ int size = info->cmap.len;
+
+ err = fb_alloc_cmap(dcmap, size, 0);
+ }
+
+
+ if (!err && con == info->currcon) {
+ err = fb_set_cmap(cmap, kspc, info);
+ dcmap = &info->cmap;
+ }
+
+ if (!err)
+ fb_copy_cmap(cmap, dcmap, kspc ? 0 : 1);
+ return err;
+}

/**
* fbgen_pan_display - pan or wrap the display
@@ -277,7 +359,6 @@
return 0;
}

-
/**
* fbgen_set_disp - set generic display
* @con: virtual console number
@@ -325,6 +406,93 @@
#endif
}

+void gen_set_disp(int con, struct fb_info *info)
+{
+ struct display *display;
+
+ if (con >= 0)
+ display = fb_display + con;
+ else
+ display = info->disp;
+
+#ifdef FBCON_HAS_ACCEL
+ if (info->var.accel_flags & FB_ACCELF_TEXT) {
+ display->dispsw = &fbcon_accel;
+ return;
+ }
+#endif
+
+ switch (info->var.bits_per_pixel)
+ {
+#ifdef FBCON_HAS_MFB
+ case 1:
+ display->dispsw = &fbcon_mfb;
+ break;
+#endif
+
+#ifdef FBCON_HAS_CFB2
+ case 2:
+ display->dispsw = &fbcon_cfb2;
+ break;
+#endif
+
+#ifdef FBCON_HAS_CFB4
+ case 4:
+ display->dispsw = &fbcon_cfb4;
+ break;
+#endif
+
+#ifdef FBCON_HAS_CFB8
+ case 8:
+ display->dispsw = &fbcon_cfb8;
+ break;
+#endif
+
+#ifdef FBCON_HAS_CFB16
+ case 16:
+ display->dispsw = &fbcon_cfb16;
+ break;
+#endif
+
+#ifdef FBCON_HAS_CFB24:
+ case 24:
+ display->dispsw = &fbcon_cfb24;
+ break;
+#endif
+
+#ifdef FBCON_HAS_CFB32
+ case 32:
+ display->dispsw = &fbcon_cfb32;
+ break;
+#endif
+ default:
+ display->dispsw = &fbcon_dummy;
+ break;
+ }
+
+ display->visual = info->fix.visual;
+ display->type = info->fix.type;
+ display->type_aux = info->fix.type_aux;
+ display->ypanstep = info->fix.ypanstep;
+ display->ywrapstep = info->fix.ywrapstep;
+ display->line_length = info->fix.line_length;
+ if (info->fbops->fb_blank || info->fix.visual == FB_VISUAL_PSEUDOCOLOR ||
+ info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
+ display->can_soft_blank = 1;
+ display->dispsw_data = NULL;
+ } else {
+ display->can_soft_blank = 0;
+ display->dispsw_data = info->pseudo_palette;
+ }
+ display->var = info->var;
+
+ /*
+ * If we are setting all the virtual consoles, also set
+ * the defaults used to create new consoles.
+ */
+ if (info->var.activate & FB_ACTIVATE_ALL)
+ info->disp->var = info->var;
+}

/**
* do_install_cmap - install the current colormap
@@ -404,6 +572,46 @@
}


+int gen_switch(int con, struct fb_info *info)
+{
+ struct display *disp;
+ struct fb_cmap *cmap;
+
+ if (info->currcon >= 0) {
+ disp = fb_display + info->currcon;
+
+ /*
+ * Save the old colormap and graphics mode.
+ */
+ disp->var = info->var;
+ if (disp->cmap.len)
+ fb_copy_cmap(&info->cmap, &disp->cmap, 0);
+ }
+
+ info->currcon = con;
+ disp = fb_display + con;
+
+ /*
+ * Install the new colormap and change the graphics mode. By default
+ * fbcon sets all the colormaps and graphics modes to the default
+ * values at bootup.
+ *
+ * Really, we want to set the colormap size depending on the
+ * depth of the new grpahics mode. For now, we leave it as its
+ * default 256 entry.
+ */
+ if (disp->cmap.len)
+ cmap = &disp->cmap;
+ else
+ cmap = fb_default_cmap(1 << disp->var.bits_per_pixel);
+
+ fb_copy_cmap(cmap, &info->cmap, 0);
+
+ disp->var.activate = FB_ACTIVATE_NOW;
+ info->fbops->fb_set_var(&disp->var, con, info);
+ return 0;
+}
+
/**
* fbgen_blank - blank the screen
* @blank: boolean, 0 unblank, 1 blank
@@ -438,9 +646,12 @@

/* generic frame buffer operations */
EXPORT_SYMBOL(fbgen_get_fix);
+EXPORT_SYMBOL(gen_get_fix);
EXPORT_SYMBOL(fbgen_get_var);
+EXPORT_SYMBOL(gen_get_var);
EXPORT_SYMBOL(fbgen_set_var);
EXPORT_SYMBOL(fbgen_get_cmap);
+EXPORT_SYMBOL(gen_get_cmap);
EXPORT_SYMBOL(fbgen_set_cmap);
EXPORT_SYMBOL(fbgen_pan_display);
/* helper functions */
@@ -449,6 +660,7 @@
EXPORT_SYMBOL(do_install_cmap);
EXPORT_SYMBOL(fbgen_update_var);
EXPORT_SYMBOL(fbgen_switch);
+EXPORT_SYMBOL(gen_switch);
EXPORT_SYMBOL(fbgen_blank);

MODULE_LICENSE("GPL");
diff -urN -X /home/jsimmons/dontdiff linux-2.5.3-dj5/include/linux/fb.h linux/include/linux/fb.h
--- linux-2.5.3-dj5/include/linux/fb.h Mon Feb 11 11:37:44 2002
+++ linux/include/linux/fb.h Mon Feb 11 11:59:26 2002
@@ -379,9 +379,6 @@
/* tell fb to switch consoles */
int (*updatevar)(int, struct fb_info*);
/* tell fb to update the vars */
- void (*blank)(int, struct fb_info*); /* tell fb to (un)blank the screen */
- /* arg = 0: unblank */
- /* arg > 0: VESA level (arg-1) */
void *pseudo_palette; /* Fake palette of 16 colors and
the cursor's color for non
palette mode */
@@ -437,14 +434,24 @@

extern int fbgen_get_fix(struct fb_fix_screeninfo *fix, int con,
struct fb_info *info);
+extern int gen_get_fix(struct fb_fix_screeninfo *fix, int con,
+ struct fb_info *info);
extern int fbgen_get_var(struct fb_var_screeninfo *var, int con,
struct fb_info *info);
+extern int gen_get_var(struct fb_var_screeninfo *var, int con,
+ struct fb_info *info);
extern int fbgen_set_var(struct fb_var_screeninfo *var, int con,
struct fb_info *info);
+extern int gen_set_var(struct fb_var_screeninfo *var, int con,
+ struct fb_info *info);
extern int fbgen_get_cmap(struct fb_cmap *cmap, int kspc, int con,
struct fb_info *info);
+extern int gen_get_cmap(struct fb_cmap *cmap, int kspc, int con,
+ struct fb_info *info);
extern int fbgen_set_cmap(struct fb_cmap *cmap, int kspc, int con,
struct fb_info *info);
+extern int gen_set_cmap(struct fb_cmap *cmap, int kspc, int con,
+ 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);
@@ -461,9 +468,10 @@
extern void do_install_cmap(int con, struct fb_info *info);
extern int fbgen_update_var(int con, struct fb_info *info);
extern int fbgen_switch(int con, struct fb_info *info);
+extern int gen_switch(int con, struct fb_info *info);
extern int fbgen_blank(int blank, struct fb_info *info);

-extern void fbgen2_set_disp(int con, struct fb_info *info);
+extern void gen_set_disp(int con, struct fb_info *info);

/* drivers/video/fbmem.c */
extern int register_framebuffer(struct fb_info *fb_info);
diff -urN -X /home/jsimmons/dontdiff linux-2.5.3-dj5/include/video/fbcon.h linux/include/video/fbcon.h
--- linux-2.5.3-dj5/include/video/fbcon.h Mon Feb 11 11:37:44 2002
+++ linux/include/video/fbcon.h Mon Feb 11 17:42:58 2002
@@ -139,6 +139,8 @@
(((s) >> ((p)->bgshift)) & 0x0f)
#define attr_bgcol_ec(p,conp) \
((conp) ? (((conp)->vc_video_erase_char >> ((p)->bgshift)) & 0x0f) : 0)
+#define attr_fgcol_ec(p,vc) \
+ ((vc) ? (((vc)->vc_video_erase_char >> ((p)->fgshift)) & 0x0f) : 0)

/* Monochrome */
#define attr_bold(p,s) \
-
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