Skip to content

L
linux
Commit 2a12c1bd authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Linus Torvalds
Browse files
Options

[PATCH] Port amifb to new fbdev API 

Amiga frame buffer device: Port to the new fbdev API
parent 524ed1c7
Hide whitespace changes
Inline Side-by-side
Showing with 1269 additions and 476 deletions
drivers/video/Makefile
View file @ 2a12c1bd
......@@ -13,7 +13,7 @@ obj-$(CONFIG_PPC) += macmodes.o
endif
obj-$(CONFIG_FB_ACORN) += acornfb.o cfbfillrect.o cfbcopyarea.o cfbimgblt.o
obj-$(CONFIG_FB_AMIGA) += amifb.o
obj-$(CONFIG_FB_AMIGA) += amifb.o c2p.o
obj-$(CONFIG_FB_PM2) += pm2fb.o
obj-$(CONFIG_FB_PM3) += pm3fb.o
obj-$(CONFIG_FB_APOLLO) += dnfb.o cfbfillrect.o cfbimgblt.o
......
drivers/video/amifb.c
View file @ 2a12c1bd
/*
* linux/drivers/video/amifb.c -- Amiga builtin chipset frame buffer device
*
* Copyright (C) 1995 Geert Uytterhoeven
* Copyright (C) 1995-2003 Geert Uytterhoeven
*
* with work by Roman Zippel
*
......@@ -62,10 +62,7 @@
#include <asm/amigaints.h>
#include <asm/setup.h>
#include <video/fbcon.h>
#include <video/fbcon-afb.h>
#include <video/fbcon-ilbm.h>
#include <video/fbcon-mfb.h>
#include "c2p.h"
#define DEBUG
......@@ -613,12 +610,11 @@ static u_short maxfmode, chipset;
#define SPRITEMEMSIZE (64*64/4) /* max 64*64*4 */
#define DUMMYSPRITEMEMSIZE (8)
static u_long spritememory;
#define CHIPRAM_SAFETY_LIMIT (16384)
static u_long videomemory, spritememory;
static u_long videomemorysize;
static u_long videomemory_phys;
static u_long videomemory;
/*
* This is the earliest allowed start of fetching display data.
......@@ -659,6 +655,47 @@ static struct copdisplay {
static u_short currentcop = 0;
/*
* Hardware Cursor API Definitions
* These used to be in linux/fb.h, but were preliminary and used by
* amifb only anyway
*/
#define FBIOGET_FCURSORINFO 0x4607
#define FBIOGET_VCURSORINFO 0x4608
#define FBIOPUT_VCURSORINFO 0x4609
#define FBIOGET_CURSORSTATE 0x460A
#define FBIOPUT_CURSORSTATE 0x460B
struct fb_fix_cursorinfo {
__u16 crsr_width; /* width and height of the cursor in */
__u16 crsr_height; /* pixels (zero if no cursor) */
__u16 crsr_xsize; /* cursor size in display pixels */
__u16 crsr_ysize;
__u16 crsr_color1; /* colormap entry for cursor color1 */
__u16 crsr_color2; /* colormap entry for cursor color2 */
};
struct fb_var_cursorinfo {
__u16 width;
__u16 height;
__u16 xspot;
__u16 yspot;
__u8 data[1]; /* field with [height][width] */
};
struct fb_cursorstate {
__s16 xoffset;
__s16 yoffset;
__u16 mode;
};
#define FB_CURSOR_OFF 0
#define FB_CURSOR_ON 1
#define FB_CURSOR_FLASH 2
/*
* Hardware Cursor
*/
......@@ -738,28 +775,28 @@ static struct amifb_par {
u_short fmode; /* vmode */
} currentpar;
static struct display disp;
static struct fb_info fb_info;
static struct fb_info fb_info = {
.fix = {
.id = "Amiga ",
.visual = FB_VISUAL_PSEUDOCOLOR,
.accel = FB_ACCEL_AMIGABLITT
}
};
/*
* Since we can't read the palette on OCS/ECS, and since reading one
* single color palette entry requires 5 expensive custom chip bus accesses
* on AGA, we keep a copy of the current palette.
* Note that the entries are always 24 bit!
* Saved color entry 0 so we can restore it when unblanking
*/
#if defined(CONFIG_FB_AMIGA_AGA)
static struct { u_char red, green, blue, pad; } palette[256];
#else
static struct { u_char red, green, blue, pad; } palette[32];
#endif
static u_char red0, green0, blue0;
#if defined(CONFIG_FB_AMIGA_ECS)
static u_short ecs_palette[32];
#endif
/*
* Latches for Display Changes during VBlank
*/
......@@ -777,15 +814,6 @@ static u_short do_cursor = 0; /* Move the Cursor */
static u_short is_blanked = 0; /* Screen is Blanked */
static u_short is_lace = 0; /* Screen is laced */
/*
* Frame Buffer Name
*
* The rest of the name is filled in during initialization
*/
static char amifb_name[16] = "Amiga ";
/*
* Predefined Video Modes
*
......@@ -1087,29 +1115,22 @@ static u_short sprfetchmode[3] = {
int amifb_setup(char*);
static int amifb_get_fix(struct fb_fix_screeninfo *fix, int con,
struct fb_info *info);
static int amifb_get_var(struct fb_var_screeninfo *var, int con,
struct fb_info *info);
static int amifb_set_var(struct fb_var_screeninfo *var, int con,
struct fb_info *info);
static int amifb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
u_int transp, struct fb_info *info);
static int amifb_check_var(struct fb_var_screeninfo *var,
struct fb_info *info);
static int amifb_set_par(struct fb_info *info);
static int amifb_setcolreg(unsigned regno, unsigned red, unsigned green,
unsigned blue, unsigned transp,
struct fb_info *info);
static int amifb_blank(int blank, struct fb_info *info);
static int amifb_pan_display(struct fb_var_screeninfo *var, int con,
static int amifb_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info);
static int amifb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
struct fb_info *info);
static int amifb_ioctl(struct inode *inode, struct file *file, u_int cmd,
u_long arg, int con, struct fb_info *info);
static void amifb_fillrect(struct fb_info *info, struct fb_fillrect *rect);
static void amifb_copyarea(struct fb_info *info, struct fb_copyarea *region);
static void amifb_imageblit(struct fb_info *info, struct fb_image *image);
static int amifb_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg,
struct fb_info *info);
static int amifb_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix, int con);
static int amifb_get_var_cursorinfo(struct fb_var_cursorinfo *var,
u_char *data, int con);
static int amifb_set_var_cursorinfo(struct fb_var_cursorinfo *var,
u_char *data, int con);
static int amifb_get_cursorstate(struct fb_cursorstate *state, int con);
static int amifb_set_cursorstate(struct fb_cursorstate *state, int con);
/*
* Interface to the low level console driver
......@@ -1117,8 +1138,6 @@ static int amifb_set_cursorstate(struct fb_cursorstate *state, int con);
int amifb_init(void);
static void amifb_deinit(void);
static int amifbcon_switch(int con, struct fb_info *info);
static int amifbcon_updatevar(int con, struct fb_info *info);
/*
* Internal routines
......@@ -1133,29 +1152,20 @@ static void chipfree(void);
* Hardware routines
*/
static int ami_encode_fix(struct fb_fix_screeninfo *fix,
struct amifb_par *par);
static int ami_decode_var(struct fb_var_screeninfo *var,
struct amifb_par *par);
static int ami_encode_var(struct fb_var_screeninfo *var,
struct amifb_par *par);
static void ami_get_par(struct amifb_par *par);
static void ami_set_var(struct fb_var_screeninfo *var);
#ifdef DEBUG
static void ami_set_par(struct amifb_par *par);
#endif
static void ami_pan_var(struct fb_var_screeninfo *var);
static int ami_update_par(void);
static int ami_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
u_int *transp, struct fb_info *info);
static void ami_update_display(void);
static void ami_init_display(void);
static void ami_do_blank(void);
static int ami_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix, int con);
static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data, int con);
static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data, int con);
static int ami_get_cursorstate(struct fb_cursorstate *state, int con);
static int ami_set_cursorstate(struct fb_cursorstate *state, int con);
static int ami_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix);
static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data);
static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data);
static int ami_get_cursorstate(struct fb_cursorstate *state);
static int ami_set_cursorstate(struct fb_cursorstate *state);
static void ami_set_sprite(void);
static void ami_init_copper(void);
static void ami_reinit_copper(void);
......@@ -1165,14 +1175,15 @@ static void ami_rebuild_copper(void);
static struct fb_ops amifb_ops = {
.owner = THIS_MODULE,
.fb_get_fix = amifb_get_fix,
.fb_get_var = amifb_get_var,
.fb_set_var = amifb_set_var,
.fb_get_cmap = amifb_get_cmap,
.fb_set_cmap = gen_set_cmap,
.fb_check_var = amifb_check_var,
.fb_set_par = amifb_set_par,
.fb_setcolreg = amifb_setcolreg,
.fb_pan_display = amifb_pan_display,
.fb_blank = amifb_blank,
.fb_pan_display = amifb_pan_display,
.fb_fillrect = amifb_fillrect,
.fb_copyarea = amifb_copyarea,
.fb_imageblit = amifb_imageblit,
.fb_cursor = soft_cursor,
.fb_ioctl = amifb_ioctl,
};
......@@ -1217,8 +1228,6 @@ int __init amifb_setup(char *options)
{
char *this_opt;
fb_info.fontname[0] = '\0';
if (!options || !*options)
return 0;
......@@ -1234,8 +1243,6 @@ int __init amifb_setup(char *options)
amifb_ilbm = 1;
else if (!strncmp(this_opt, "monitorcap:", 11))
amifb_setup_mcap(this_opt+11);
else if (!strncmp(this_opt, "font:", 5))
strcpy(fb_info.fontname, this_opt+5);
else if (!strncmp(this_opt, "fstart:", 7))
min_fstrt = simple_strtoul(this_opt+7, NULL, 0);
else
......@@ -1248,293 +1255,975 @@ int __init amifb_setup(char *options)
return 0;
}
/*
* Get the Fixed Part of the Display
*/
static int amifb_get_fix(struct fb_fix_screeninfo *fix, int con,
struct fb_info *info)
static int amifb_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
int err;
struct amifb_par par;
if (con == -1)
ami_get_par(&par);
else {
int err;
/* Validate wanted screen parameters */
if ((err = ami_decode_var(var, &par)))
return err;
if ((err = ami_decode_var(&fb_display[con].var, &par)))
return err;
}
return ami_encode_fix(fix, &par);
/* Encode (possibly rounded) screen parameters */
ami_encode_var(var, &par);
return 0;
}
/*
* Get the User Defined Part of the Display
*/
static int amifb_get_var(struct fb_var_screeninfo *var, int con,
struct fb_info *info)
static int amifb_set_par(struct fb_info *info)
{
int err = 0;
if (con == -1) {
struct amifb_par par;
ami_get_par(&par);
err = ami_encode_var(var, &par);
} else
*var = fb_display[con].var;
return err;
}
struct amifb_par *par = (struct amifb_par *)info->par;
/*
* Set the User Defined Part of the Display
*/
do_vmode_pan = 0;
do_vmode_full = 0;
static int amifb_set_var(struct fb_var_screeninfo *var, int con,
struct fb_info *info)
{
int err, activate = var->activate;
int oldxres, oldyres, oldvxres, oldvyres, oldbpp;
struct amifb_par par;
/* Decode wanted screen parameters */
ami_decode_var(&info->var, par);
struct display *display;
if (con >= 0)
display = &fb_display[con];
else
display = &disp; /* used during initialization */
/* Set new videomode */
ami_build_copper();
/*
* FB_VMODE_CONUPDATE and FB_VMODE_SMOOTH_XPAN are equal!
* as FB_VMODE_SMOOTH_XPAN is only used internally
*/
/* Set VBlank trigger */
do_vmode_full = 1;
if (var->vmode & FB_VMODE_CONUPDATE) {
var->vmode |= FB_VMODE_YWRAP;
var->xoffset = display->var.xoffset;
var->yoffset = display->var.yoffset;
/* Update fix for new screen parameters */
if (par->bpp == 1) {
info->fix.type = FB_TYPE_PACKED_PIXELS;
info->fix.type_aux = 0;
} else if (amifb_ilbm) {
info->fix.type = FB_TYPE_INTERLEAVED_PLANES;
info->fix.type_aux = par->next_line;
} else {
info->fix.type = FB_TYPE_PLANES;
info->fix.type_aux = 0;
}
if ((err = ami_decode_var(var, &par)))
return err;
ami_encode_var(var, &par);
if ((activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) {
oldxres = display->var.xres;
oldyres = display->var.yres;
oldvxres = display->var.xres_virtual;
oldvyres = display->var.yres_virtual;
oldbpp = display->var.bits_per_pixel;
display->var = *var;
if (oldxres != var->xres || oldyres != var->yres ||
oldvxres != var->xres_virtual || oldvyres != var->yres_virtual ||
oldbpp != var->bits_per_pixel) {
struct fb_fix_screeninfo fix;
ami_encode_fix(&fix, &par);
display->visual = fix.visual;
display->type = fix.type;
display->type_aux = fix.type_aux;
display->ypanstep = fix.ypanstep;
display->ywrapstep = fix.ywrapstep;
display->line_length = fix.line_length;
display->can_soft_blank = 1;
display->inverse = amifb_inverse;
switch (fix.type) {
#ifdef FBCON_HAS_ILBM
case FB_TYPE_INTERLEAVED_PLANES:
display->dispsw = &fbcon_ilbm;
break;
#endif
#ifdef FBCON_HAS_AFB
case FB_TYPE_PLANES:
display->dispsw = &fbcon_afb;
break;
#endif
#ifdef FBCON_HAS_MFB
case FB_TYPE_PACKED_PIXELS: /* depth == 1 */
display->dispsw = &fbcon_mfb;
break;
#endif
default:
display->dispsw = &fbcon_dummy;
}
if (fb_info.changevar)
(*fb_info.changevar)(con);
}
if (oldbpp != var->bits_per_pixel) {
if ((err = fb_alloc_cmap(&display->cmap, 0, 0)))
return err;
do_install_cmap(con, info);
}
if (con == info->currcon)
ami_set_var(&display->var);
info->fix.line_length = div8(upx(16<<maxfmode, par->vxres));
if (par->vmode & FB_VMODE_YWRAP) {
info->fix.ywrapstep = 1;
info->fix.xpanstep = 0;
info->fix.ypanstep = 0;
} else {
info->fix.ywrapstep = 0;
if (par->vmode &= FB_VMODE_SMOOTH_XPAN)
info->fix.xpanstep = 1;
else
info->fix.xpanstep = 16<<maxfmode;
info->fix.ypanstep = 1;
}
return 0;
}
/*
* Pan or Wrap the Display
*
* This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
*/
static int amifb_pan_display(struct fb_var_screeninfo *var, int con,
struct fb_info *info)
static int amifb_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info)
{
if (var->vmode & FB_VMODE_YWRAP) {
if (var->yoffset<0 || var->yoffset >= fb_display[con].var.yres_virtual || var->xoffset)
if (var->yoffset < 0 ||
var->yoffset >= info->var.yres_virtual || var->xoffset)
return -EINVAL;
} else {
/*
* TODO: There will be problems when xpan!=1, so some columns
* on the right side will never be seen
*/
if (var->xoffset+fb_display[con].var.xres > upx(16<<maxfmode, fb_display[con].var.xres_virtual) ||
var->yoffset+fb_display[con].var.yres > fb_display[con].var.yres_virtual)
if (var->xoffset+info->var.xres > upx(16<<maxfmode, info->var.xres_virtual) ||
var->yoffset+info->var.yres > info->var.yres_virtual)
return -EINVAL;
}
if (con == info->currcon)
ami_pan_var(var);
fb_display[con].var.xoffset = var->xoffset;
fb_display[con].var.yoffset = var->yoffset;
ami_pan_var(var);
info->var.xoffset = var->xoffset;
info->var.yoffset = var->yoffset;
if (var->vmode & FB_VMODE_YWRAP)
fb_display[con].var.vmode |= FB_VMODE_YWRAP;
info->var.vmode |= FB_VMODE_YWRAP;
else
fb_display[con].var.vmode &= ~FB_VMODE_YWRAP;
info->var.vmode &= ~FB_VMODE_YWRAP;
return 0;
}
/*
* Get the Colormap
*/
static int amifb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
struct fb_info *info)
#if BITS_PER_LONG == 32
#define BYTES_PER_LONG 4
#define SHIFT_PER_LONG 5
#elif BITS_PER_LONG == 64
#define BYTES_PER_LONG 8
#define SHIFT_PER_LONG 6
#else
#define Please update me
#endif
/*
* Compose two values, using a bitmask as decision value
* This is equivalent to (a & mask) | (b & ~mask)
*/
static inline unsigned long comp(unsigned long a, unsigned long b,
unsigned long mask)
{
if (con == info->currcon) /* current console? */
return fb_get_cmap(cmap, kspc, ami_getcolreg, info);
else if (fb_display[con].cmap.len) /* non default colormap? */
fb_copy_cmap(&fb_display[con].cmap, cmap, kspc ? 0 : 2);
else
fb_copy_cmap(fb_default_cmap(1<<fb_display[con].var.bits_per_pixel),
cmap, kspc ? 0 : 2);
return 0;
return ((a ^ b) & mask) ^ b;
}
/*
* Amiga Frame Buffer Specific ioctls
*/
static int amifb_ioctl(struct inode *inode, struct file *file,
u_int cmd, u_long arg, int con, struct fb_info *info)
static inline unsigned long xor(unsigned long a, unsigned long b,
unsigned long mask)
{
int i;
return (a & mask) ^ b;
}
switch (cmd) {
case FBIOGET_FCURSORINFO : {
struct fb_fix_cursorinfo crsrfix;
i = verify_area(VERIFY_WRITE, (void *)arg, sizeof(crsrfix));
if (!i) {
i = amifb_get_fix_cursorinfo(&crsrfix, con);
copy_to_user((void *)arg, &crsrfix, sizeof(crsrfix));
/*
* Unaligned forward bit copy using 32-bit or 64-bit memory accesses
*/
static void bitcpy(unsigned long *dst, int dst_idx, const unsigned long *src,
int src_idx, u32 n)
{
unsigned long first, last;
int shift = dst_idx-src_idx, left, right;
unsigned long d0, d1;
int m;
if (!n)
return;
shift = dst_idx-src_idx;
first = ~0UL >> dst_idx;
last = ~(~0UL >> ((dst_idx+n) % BITS_PER_LONG));
if (!shift) {
// Same alignment for source and dest
if (dst_idx+n <= BITS_PER_LONG) {
// Single word
if (last)
first &= last;
*dst = comp(*src, *dst, first);
} else {
// Multiple destination words
// Leading bits
if (first) {
*dst = comp(*src, *dst, first);
dst++;
src++;
n -= BITS_PER_LONG-dst_idx;
}
return i;
}
case FBIOGET_VCURSORINFO : {
struct fb_var_cursorinfo crsrvar;
i = verify_area(VERIFY_WRITE, (void *)arg, sizeof(crsrvar));
if (!i) {
i = amifb_get_var_cursorinfo(&crsrvar,
((struct fb_var_cursorinfo *)arg)->data, con);
copy_to_user((void *)arg, &crsrvar, sizeof(crsrvar));
// Main chunk
n /= BITS_PER_LONG;
while (n >= 8) {
*dst++ = *src++;
*dst++ = *src++;
*dst++ = *src++;
*dst++ = *src++;
*dst++ = *src++;
*dst++ = *src++;
*dst++ = *src++;
*dst++ = *src++;
n -= 8;
}
return i;
while (n--)
*dst++ = *src++;
// Trailing bits
if (last)
*dst = comp(*src, *dst, last);
}
case FBIOPUT_VCURSORINFO : {
struct fb_var_cursorinfo crsrvar;
i = verify_area(VERIFY_READ, (void *)arg, sizeof(crsrvar));
if (!i) {
copy_from_user(&crsrvar, (void *)arg, sizeof(crsrvar));
i = amifb_set_var_cursorinfo(&crsrvar,
((struct fb_var_cursorinfo *)arg)->data, con);
} else {
// Different alignment for source and dest
right = shift & (BITS_PER_LONG-1);
left = -shift & (BITS_PER_LONG-1);
if (dst_idx+n <= BITS_PER_LONG) {
// Single destination word
if (last)
first &= last;
if (shift > 0) {
// Single source word
*dst = comp(*src >> right, *dst, first);
} else if (src_idx+n <= BITS_PER_LONG) {
// Single source word
*dst = comp(*src << left, *dst, first);
} else {
// 2 source words
d0 = *src++;
d1 = *src;
*dst = comp(d0 << left | d1 >> right, *dst,
first);
}
} else {
// Multiple destination words
d0 = *src++;
// Leading bits
if (shift > 0) {
// Single source word
*dst = comp(d0 >> right, *dst, first);
dst++;
n -= BITS_PER_LONG-dst_idx;
} else {
// 2 source words
d1 = *src++;
*dst = comp(d0 << left | d1 >> right, *dst,
first);
d0 = d1;
dst++;
n -= BITS_PER_LONG-dst_idx;
}
// Main chunk
m = n % BITS_PER_LONG;
n /= BITS_PER_LONG;
while (n >= 4) {
d1 = *src++;
*dst++ = d0 << left | d1 >> right;
d0 = d1;
d1 = *src++;
*dst++ = d0 << left | d1 >> right;
d0 = d1;
d1 = *src++;
*dst++ = d0 << left | d1 >> right;
d0 = d1;
d1 = *src++;
*dst++ = d0 << left | d1 >> right;
d0 = d1;
n -= 4;
}
while (n--) {
d1 = *src++;
*dst++ = d0 << left | d1 >> right;
d0 = d1;
}
// Trailing bits
if (last) {
if (m <= right) {
// Single source word
*dst = comp(d0 << left, *dst, last);
} else {
// 2 source words
d1 = *src;
*dst = comp(d0 << left | d1 >> right,
*dst, last);
}
}
return i;
}
case FBIOGET_CURSORSTATE : {
struct fb_cursorstate crsrstate;
}
}
/*
* Unaligned reverse bit copy using 32-bit or 64-bit memory accesses
*/
static void bitcpy_rev(unsigned long *dst, int dst_idx,
const unsigned long *src, int src_idx, u32 n)
{
unsigned long first, last;
int shift = dst_idx-src_idx, left, right;
unsigned long d0, d1;
int m;
if (!n)
return;
dst += (n-1)/BITS_PER_LONG;
src += (n-1)/BITS_PER_LONG;
if ((n-1) % BITS_PER_LONG) {
dst_idx += (n-1) % BITS_PER_LONG;
dst += dst_idx >> SHIFT_PER_LONG;
dst_idx &= BITS_PER_LONG-1;
src_idx += (n-1) % BITS_PER_LONG;
src += src_idx >> SHIFT_PER_LONG;
src_idx &= BITS_PER_LONG-1;
}
shift = dst_idx-src_idx;
first = ~0UL << (BITS_PER_LONG-1-dst_idx);
last = ~(~0UL << (BITS_PER_LONG-1-((dst_idx-n) % BITS_PER_LONG)));
if (!shift) {
// Same alignment for source and dest
i = verify_area(VERIFY_WRITE, (void *)arg, sizeof(crsrstate));
if (!i) {
i = amifb_get_cursorstate(&crsrstate, con);
copy_to_user((void *)arg, &crsrstate, sizeof(crsrstate));
if ((unsigned long)dst_idx+1 >= n) {
// Single word
if (last)
first &= last;
*dst = comp(*src, *dst, first);
} else {
// Multiple destination words
// Leading bits
if (first) {
*dst = comp(*src, *dst, first);
dst--;
src--;
n -= dst_idx+1;
}
// Main chunk
n /= BITS_PER_LONG;
while (n >= 8) {
*dst-- = *src--;
*dst-- = *src--;
*dst-- = *src--;
*dst-- = *src--;
*dst-- = *src--;
*dst-- = *src--;
*dst-- = *src--;
*dst-- = *src--;
n -= 8;
}
return i;
while (n--)
*dst-- = *src--;
// Trailing bits
if (last)
*dst = comp(*src, *dst, last);
}
case FBIOPUT_CURSORSTATE : {
struct fb_cursorstate crsrstate;
} else {
// Different alignment for source and dest
right = shift & (BITS_PER_LONG-1);
left = -shift & (BITS_PER_LONG-1);
if ((unsigned long)dst_idx+1 >= n) {
// Single destination word
if (last)
first &= last;
if (shift < 0) {
// Single source word
*dst = comp(*src << left, *dst, first);
} else if (1+(unsigned long)src_idx >= n) {
// Single source word
*dst = comp(*src >> right, *dst, first);
} else {
// 2 source words
d0 = *src--;
d1 = *src;
*dst = comp(d0 >> right | d1 << left, *dst,
first);
}
} else {
// Multiple destination words
d0 = *src--;
// Leading bits
if (shift < 0) {
// Single source word
*dst = comp(d0 << left, *dst, first);
dst--;
n -= dst_idx+1;
} else {
// 2 source words
d1 = *src--;
*dst = comp(d0 >> right | d1 << left, *dst,
first);
d0 = d1;
dst--;
n -= dst_idx+1;
}
i = verify_area(VERIFY_READ, (void *)arg, sizeof(crsrstate));
if (!i) {
copy_from_user(&crsrstate, (void *)arg, sizeof(crsrstate));
i = amifb_set_cursorstate(&crsrstate, con);
// Main chunk
m = n % BITS_PER_LONG;
n /= BITS_PER_LONG;
while (n >= 4) {
d1 = *src--;
*dst-- = d0 >> right | d1 << left;
d0 = d1;
d1 = *src--;
*dst-- = d0 >> right | d1 << left;
d0 = d1;
d1 = *src--;
*dst-- = d0 >> right | d1 << left;
d0 = d1;
d1 = *src--;
*dst-- = d0 >> right | d1 << left;
d0 = d1;
n -= 4;
}
while (n--) {
d1 = *src--;
*dst-- = d0 >> right | d1 << left;
d0 = d1;
}
// Trailing bits
if (last) {
if (m <= left) {
// Single source word
*dst = comp(d0 >> right, *dst, last);
} else {
// 2 source words
d1 = *src;
*dst = comp(d0 >> right | d1 << left,
*dst, last);
}
}
return i;
}
#ifdef DEBUG
case FBCMD_GET_CURRENTPAR : {
struct amifb_par par;
}
}
/*
* Unaligned forward inverting bit copy using 32-bit or 64-bit memory
* accesses
*/
static void bitcpy_not(unsigned long *dst, int dst_idx,
const unsigned long *src, int src_idx, u32 n)
{
unsigned long first, last;
int shift = dst_idx-src_idx, left, right;
unsigned long d0, d1;
int m;
i = verify_area(VERIFY_WRITE, (void *)arg, sizeof(struct amifb_par));
if (!i) {
ami_get_par(&par);
copy_to_user((void *)arg, &par, sizeof(struct amifb_par));
if (!n)
return;
shift = dst_idx-src_idx;
first = ~0UL >> dst_idx;
last = ~(~0UL >> ((dst_idx+n) % BITS_PER_LONG));
if (!shift) {
// Same alignment for source and dest
if (dst_idx+n <= BITS_PER_LONG) {
// Single word
if (last)
first &= last;
*dst = comp(~*src, *dst, first);
} else {
// Multiple destination words
// Leading bits
if (first) {
*dst = comp(~*src, *dst, first);
dst++;
src++;
n -= BITS_PER_LONG-dst_idx;
}
return i;
// Main chunk
n /= BITS_PER_LONG;
while (n >= 8) {
*dst++ = ~*src++;
*dst++ = ~*src++;
*dst++ = ~*src++;
*dst++ = ~*src++;
*dst++ = ~*src++;
*dst++ = ~*src++;
*dst++ = ~*src++;
*dst++ = ~*src++;
n -= 8;
}
while (n--)
*dst++ = ~*src++;
// Trailing bits
if (last)
*dst = comp(~*src, *dst, last);
}
case FBCMD_SET_CURRENTPAR : {
struct amifb_par par;
} else {
// Different alignment for source and dest
right = shift & (BITS_PER_LONG-1);
left = -shift & (BITS_PER_LONG-1);
if (dst_idx+n <= BITS_PER_LONG) {
// Single destination word
if (last)
first &= last;
if (shift > 0) {
// Single source word
*dst = comp(~*src >> right, *dst, first);
} else if (src_idx+n <= BITS_PER_LONG) {
// Single source word
*dst = comp(~*src << left, *dst, first);
} else {
// 2 source words
d0 = ~*src++;
d1 = ~*src;
*dst = comp(d0 << left | d1 >> right, *dst,
first);
}
} else {
// Multiple destination words
d0 = ~*src++;
// Leading bits
if (shift > 0) {
// Single source word
*dst = comp(d0 >> right, *dst, first);
dst++;
n -= BITS_PER_LONG-dst_idx;
} else {
// 2 source words
d1 = ~*src++;
*dst = comp(d0 << left | d1 >> right, *dst,
first);
d0 = d1;
dst++;
n -= BITS_PER_LONG-dst_idx;
}
i = verify_area(VERIFY_READ, (void *)arg, sizeof(struct amifb_par));
if (!i) {
copy_from_user(&par, (void *)arg, sizeof(struct amifb_par));
ami_set_par(&par);
// Main chunk
m = n % BITS_PER_LONG;
n /= BITS_PER_LONG;
while (n >= 4) {
d1 = ~*src++;
*dst++ = d0 << left | d1 >> right;
d0 = d1;
d1 = ~*src++;
*dst++ = d0 << left | d1 >> right;
d0 = d1;
d1 = ~*src++;
*dst++ = d0 << left | d1 >> right;
d0 = d1;
d1 = ~*src++;
*dst++ = d0 << left | d1 >> right;
d0 = d1;
n -= 4;
}
while (n--) {
d1 = ~*src++;
*dst++ = d0 << left | d1 >> right;
d0 = d1;
}
// Trailing bits
if (last) {
if (m <= right) {
// Single source word
*dst = comp(d0 << left, *dst, last);
} else {
// 2 source words
d1 = ~*src;
*dst = comp(d0 << left | d1 >> right,
*dst, last);
}
}
return i;
}
#endif /* DEBUG */
}
return -EINVAL;
}
/*
* Unaligned 32-bit pattern fill using 32/64-bit memory accesses
*/
static void bitfill32(unsigned long *dst, int dst_idx, u32 pat, u32 n)
{
unsigned long val = pat;
unsigned long first, last;
if (!n)
return;
#if BITS_PER_LONG == 64
val |= val << 32;
#endif
first = ~0UL >> dst_idx;
last = ~(~0UL >> ((dst_idx+n) % BITS_PER_LONG));
if (dst_idx+n <= BITS_PER_LONG) {
// Single word
if (last)
first &= last;
*dst = comp(val, *dst, first);
} else {
// Multiple destination words
// Leading bits
if (first) {
*dst = comp(val, *dst, first);
dst++;
n -= BITS_PER_LONG-dst_idx;
}
// Main chunk
n /= BITS_PER_LONG;
while (n >= 8) {
*dst++ = val;
*dst++ = val;
*dst++ = val;
*dst++ = val;
*dst++ = val;
*dst++ = val;
*dst++ = val;
*dst++ = val;
n -= 8;
}
while (n--)
*dst++ = val;
// Trailing bits
if (last)
*dst = comp(val, *dst, last);
}
}
/*
* Unaligned 32-bit pattern xor using 32/64-bit memory accesses
*/
static void bitxor32(unsigned long *dst, int dst_idx, u32 pat, u32 n)
{
unsigned long val = pat;
unsigned long first, last;
if (!n)
return;
#if BITS_PER_LONG == 64
val |= val << 32;
#endif
first = ~0UL >> dst_idx;
last = ~(~0UL >> ((dst_idx+n) % BITS_PER_LONG));
if (dst_idx+n <= BITS_PER_LONG) {
// Single word
if (last)
first &= last;
*dst = xor(val, *dst, first);
} else {
// Multiple destination words
// Leading bits
if (first) {
*dst = xor(val, *dst, first);
dst++;
n -= BITS_PER_LONG-dst_idx;
}
// Main chunk
n /= BITS_PER_LONG;
while (n >= 4) {
*dst++ ^= val;
*dst++ ^= val;
*dst++ ^= val;
*dst++ ^= val;
n -= 4;
}
while (n--)
*dst++ ^= val;
// Trailing bits
if (last)
*dst = xor(val, *dst, last);
}
}
static inline void fill_one_line(int bpp, unsigned long next_plane,
unsigned long *dst, int dst_idx, u32 n,
u32 color)
{
while (1) {
dst += dst_idx >> SHIFT_PER_LONG;
dst_idx &= (BITS_PER_LONG-1);
bitfill32(dst, dst_idx, color & 1 ? ~0 : 0, n);
if (!--bpp)
break;
color >>= 1;
dst_idx += next_plane*8;
}
}
static inline void xor_one_line(int bpp, unsigned long next_plane,
unsigned long *dst, int dst_idx, u32 n,
u32 color)
{
while (color) {
dst += dst_idx >> SHIFT_PER_LONG;
dst_idx &= (BITS_PER_LONG-1);
bitxor32(dst, dst_idx, color & 1 ? ~0 : 0, n);
if (!--bpp)
break;
color >>= 1;
dst_idx += next_plane*8;
}
}
static void amifb_fillrect(struct fb_info *info, struct fb_fillrect *rect)
{
struct amifb_par *par = (struct amifb_par *)info->par;
int dst_idx, x2, y2;
unsigned long *dst;
if (!rect->width || !rect->height)
return;
/*
* Hardware Cursor
*/
* We could use hardware clipping but on many cards you get around
* hardware clipping by writing to framebuffer directly.
* */
x2 = rect->dx + rect->width;
y2 = rect->dy + rect->height;
x2 = x2 < info->var.xres_virtual ? x2 : info->var.xres_virtual;
y2 = y2 < info->var.yres_virtual ? y2 : info->var.yres_virtual;
rect->width = x2 - rect->dx;
rect->height = y2 - rect->dy;
dst = (unsigned long *)
((unsigned long)info->screen_base & ~(BYTES_PER_LONG-1));
dst_idx = ((unsigned long)info->screen_base & (BYTES_PER_LONG-1))*8;
dst_idx += rect->dy*par->next_line*8+rect->dx;
while (rect->height--) {
switch (rect->rop) {
case ROP_COPY:
fill_one_line(info->var.bits_per_pixel,
par->next_plane, dst, dst_idx,
rect->width, rect->color);
break;
static int amifb_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix, int con)
case ROP_XOR:
xor_one_line(info->var.bits_per_pixel,
par->next_plane, dst, dst_idx,
rect->width, rect->color);
break;
}
dst_idx += par->next_line*8;
}
}
static inline void copy_one_line(int bpp, unsigned long next_plane,
unsigned long *dst, int dst_idx,
unsigned long *src, int src_idx, u32 n)
{
return ami_get_fix_cursorinfo(fix, con);
while (1) {
dst += dst_idx >> SHIFT_PER_LONG;
dst_idx &= (BITS_PER_LONG-1);
src += src_idx >> SHIFT_PER_LONG;
src_idx &= (BITS_PER_LONG-1);
bitcpy(dst, dst_idx, src, src_idx, n);
if (!--bpp)
break;
dst_idx += next_plane*8;
src_idx += next_plane*8;
}
}
static int amifb_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data, int con)
static inline void copy_one_line_rev(int bpp, unsigned long next_plane,
unsigned long *dst, int dst_idx,
unsigned long *src, int src_idx, u32 n)
{
return ami_get_var_cursorinfo(var, data, con);
while (1) {
dst += dst_idx >> SHIFT_PER_LONG;
dst_idx &= (BITS_PER_LONG-1);
src += src_idx >> SHIFT_PER_LONG;
src_idx &= (BITS_PER_LONG-1);
bitcpy_rev(dst, dst_idx, src, src_idx, n);
if (!--bpp)
break;
dst_idx += next_plane*8;
src_idx += next_plane*8;
}
}
static int amifb_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data, int con)
static void amifb_copyarea(struct fb_info *info, struct fb_copyarea *area)
{
return ami_set_var_cursorinfo(var, data, con);
struct amifb_par *par = (struct amifb_par *)info->par;
int x2, y2, old_dx, old_dy;
unsigned long *dst, *src;
int dst_idx, src_idx, height;
int rev_copy = 0;
/* clip the destination */
old_dx = area->dx;
old_dy = area->dy;
/*
* We could use hardware clipping but on many cards you get around
* hardware clipping by writing to framebuffer directly.
*/
x2 = area->dx + area->width;
y2 = area->dy + area->height;
area->dx = area->dx > 0 ? area->dx : 0;
area->dy = area->dy > 0 ? area->dy : 0;
x2 = x2 < info->var.xres_virtual ? x2 : info->var.xres_virtual;
y2 = y2 < info->var.yres_virtual ? y2 : info->var.yres_virtual;
area->width = x2 - area->dx;
area->height = y2 - area->dy;
/* update sx1,sy1 */
area->sx += (area->dx - old_dx);
area->sy += (area->dy - old_dy);
height = area->height;
/* the source must be completely inside the virtual screen */
if (area->sx < 0 || area->sy < 0 ||
(area->sx + area->width) > info->var.xres_virtual ||
(area->sy + area->height) > info->var.yres_virtual)
return;
if (area->dy > area->sy ||
(area->dy == area->sy && area->dx > area->sx)) {
area->dy += area->height;
area->sy += area->height;
rev_copy = 1;
}
dst = (unsigned long *)
((unsigned long)info->screen_base & ~(BYTES_PER_LONG-1));
src = dst;
dst_idx = ((unsigned long)info->screen_base & (BYTES_PER_LONG-1))*8;
src_idx = dst_idx;
dst_idx += area->dy*par->next_line*8+area->dx;
src_idx += area->sy*par->next_line*8+area->sx;
if (rev_copy) {
while (height--) {
dst_idx -= par->next_line*8;
src_idx -= par->next_line*8;
copy_one_line_rev(info->var.bits_per_pixel,
par->next_plane, dst, dst_idx, src,
src_idx, area->width);
}
} else {
while (height--) {
copy_one_line(info->var.bits_per_pixel,
par->next_plane, dst, dst_idx, src,
src_idx, area->width);
dst_idx += par->next_line*8;
src_idx += par->next_line*8;
}
}
}
static int amifb_get_cursorstate(struct fb_cursorstate *state, int con)
static inline void expand_one_line(int bpp, unsigned long next_plane,
unsigned long *dst, int dst_idx, u32 n,
const u8 *data, u32 bgcolor, u32 fgcolor)
{
return ami_get_cursorstate(state, con);
const unsigned long *src;
int src_idx;
while (1) {
dst += dst_idx >> SHIFT_PER_LONG;
dst_idx &= (BITS_PER_LONG-1);
if ((bgcolor ^ fgcolor) & 1) {
src = (unsigned long *)((unsigned long)data & ~(BYTES_PER_LONG-1));
src_idx = ((unsigned long)data & (BYTES_PER_LONG-1))*8;
if (fgcolor & 1)
bitcpy(dst, dst_idx, src, src_idx, n);
else
bitcpy_not(dst, dst_idx, src, src_idx, n);
/* set or clear */
} else
bitfill32(dst, dst_idx, fgcolor & 1 ? ~0 : 0, n);
if (!--bpp)
break;
bgcolor >>= 1;
fgcolor >>= 1;
dst_idx += next_plane*8;
}
}
static int amifb_set_cursorstate(struct fb_cursorstate *state, int con)
static void amifb_imageblit(struct fb_info *info, struct fb_image *image)
{
return ami_set_cursorstate(state, con);
struct amifb_par *par = (struct amifb_par *)info->par;
int x2, y2;
unsigned long *dst;
int dst_idx;
const char *src;
u32 dx, dy, width, height, pitch;
/*
* We could use hardware clipping but on many cards you get around
* hardware clipping by writing to framebuffer directly like we are
* doing here.
*/
x2 = image->dx + image->width;
y2 = image->dy + image->height;
dx = image->dx;
dy = image->dy;
x2 = x2 < info->var.xres_virtual ? x2 : info->var.xres_virtual;
y2 = y2 < info->var.yres_virtual ? y2 : info->var.yres_virtual;
width = x2 - dx;
height = y2 - dy;
if (image->depth == 1) {
dst = (unsigned long *)
((unsigned long)info->screen_base & ~(BYTES_PER_LONG-1));
dst_idx = ((unsigned long)info->screen_base & (BYTES_PER_LONG-1))*8;
dst_idx += dy*par->next_line*8+dx;
src = image->data;
pitch = (image->width+7)/8;
while (height--) {
expand_one_line(info->var.bits_per_pixel,
par->next_plane, dst, dst_idx, width,
src, image->bg_color,
image->fg_color);
dst_idx += par->next_line*8;
src += pitch;
}
} else {
c2p(info->screen_base, image->data, dx, dy, width, height,
par->next_line, par->next_plane, image->width,
info->var.bits_per_pixel);
}
}
/*
* Amiga Frame Buffer Specific ioctls
*/
static int amifb_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg,
struct fb_info *info)
{
union {
struct fb_fix_cursorinfo fix;
struct fb_var_cursorinfo var;
struct fb_cursorstate state;
} crsr;
int i;
switch (cmd) {
case FBIOGET_FCURSORINFO:
i = ami_get_fix_cursorinfo(&crsr.fix);
if (i)
return i;
return copy_to_user((void *)arg, &crsr.fix,
sizeof(crsr.fix)) ? -EFAULT : 0;
case FBIOGET_VCURSORINFO:
i = ami_get_var_cursorinfo(&crsr.var,
((struct fb_var_cursorinfo *)arg)->data);
if (i)
return i;
return copy_to_user((void *)arg, &crsr.var,
sizeof(crsr.var)) ? -EFAULT : 0;
case FBIOPUT_VCURSORINFO:
if (copy_from_user(&crsr.var, (void *)arg,
sizeof(crsr.var)))
return -EFAULT;
return ami_set_var_cursorinfo(&crsr.var,
((struct fb_var_cursorinfo *)arg)->data);
case FBIOGET_CURSORSTATE:
i = ami_get_cursorstate(&crsr.state);
if (i)
return i;
return copy_to_user((void *)arg, &crsr.state,
sizeof(crsr.state)) ? -EFAULT : 0;
case FBIOPUT_CURSORSTATE:
if (copy_from_user(&crsr.state, (void *)arg,
sizeof(crsr.state)))
return -EFAULT;
return ami_set_cursorstate(&crsr.state);
}
return -EINVAL;
}
......@@ -1570,7 +2259,6 @@ int __init amifb_init(void)
int tag, i, err = 0;
u_long chipptr;
u_int defmode;
struct fb_var_screeninfo var;
if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(AMI_VIDEO))
return -ENXIO;
......@@ -1600,7 +2288,7 @@ int __init amifb_init(void)
switch (amiga_chipset) {
#ifdef CONFIG_FB_AMIGA_OCS
case CS_OCS:
strcat(amifb_name, "OCS");
strcat(fb_info.fix.id, "OCS");
default_chipset:
chipset = TAG_OCS;
maxdepth[TAG_SHRES] = 0; /* OCS means no SHRES */
......@@ -1609,13 +2297,13 @@ int __init amifb_init(void)
maxfmode = TAG_FMODE_1;
defmode = amiga_vblank == 50 ? DEFMODE_PAL
: DEFMODE_NTSC;
videomemorysize = VIDEOMEMSIZE_OCS;
fb_info.fix.smem_len = VIDEOMEMSIZE_OCS;
break;
#endif /* CONFIG_FB_AMIGA_OCS */
#ifdef CONFIG_FB_AMIGA_ECS
case CS_ECS:
strcat(amifb_name, "ECS");
strcat(fb_info.fix.id, "ECS");
chipset = TAG_ECS;
maxdepth[TAG_SHRES] = 2;
maxdepth[TAG_HIRES] = 4;
......@@ -1629,15 +2317,15 @@ int __init amifb_init(void)
: DEFMODE_NTSC;
if (amiga_chip_avail()-CHIPRAM_SAFETY_LIMIT >
VIDEOMEMSIZE_ECS_1M)
videomemorysize = VIDEOMEMSIZE_ECS_2M;
fb_info.fix.smem_len = VIDEOMEMSIZE_ECS_2M;
else
videomemorysize = VIDEOMEMSIZE_ECS_1M;
fb_info.fix.smem_len = VIDEOMEMSIZE_ECS_1M;
break;
#endif /* CONFIG_FB_AMIGA_ECS */
#ifdef CONFIG_FB_AMIGA_AGA
case CS_AGA:
strcat(amifb_name, "AGA");
strcat(fb_info.fix.id, "AGA");
chipset = TAG_AGA;
maxdepth[TAG_SHRES] = 8;
maxdepth[TAG_HIRES] = 8;
......@@ -1646,16 +2334,16 @@ int __init amifb_init(void)
defmode = DEFMODE_AGA;
if (amiga_chip_avail()-CHIPRAM_SAFETY_LIMIT >
VIDEOMEMSIZE_AGA_1M)
videomemorysize = VIDEOMEMSIZE_AGA_2M;
fb_info.fix.smem_len = VIDEOMEMSIZE_AGA_2M;
else
videomemorysize = VIDEOMEMSIZE_AGA_1M;
fb_info.fix.smem_len = VIDEOMEMSIZE_AGA_1M;
break;
#endif /* CONFIG_FB_AMIGA_AGA */
default:
#ifdef CONFIG_FB_AMIGA_OCS
printk("Unknown graphics chipset, defaulting to OCS\n");
strcat(amifb_name, "Unknown");
strcat(fb_info.fix.id, "Unknown");
goto default_chipset;
#else /* CONFIG_FB_AMIGA_OCS */
err = -ENXIO;
......@@ -1698,31 +2386,25 @@ int __init amifb_init(void)
fb_info.monspecs.vfmax = 90;
}
strcpy(fb_info.modename, amifb_name);
fb_info.changevar = NULL;
fb_info.node = NODEV;
fb_info.fbops = &amifb_ops;
fb_info.disp = &disp;
fb_info.currcon = 1;
fb_info.switch_con = &amifbcon_switch;
fb_info.updatevar = &amifbcon_updatevar;
fb_info.par = &currentpar;
fb_info.flags = FBINFO_FLAG_DEFAULT;
memset(&var, 0, sizeof(var));
if (!fb_find_mode(&var, &fb_info, mode_option, ami_modedb,
if (!fb_find_mode(&fb_info.var, &fb_info, mode_option, ami_modedb,
NUM_TOTAL_MODES, &ami_modedb[defmode], 4)) {
err = -EINVAL;
goto amifb_error;
}
round_down_bpp = 0;
chipptr = chipalloc(videomemorysize+
chipptr = chipalloc(fb_info.fix.smem_len+
SPRITEMEMSIZE+
DUMMYSPRITEMEMSIZE+
COPINITSIZE+
4*COPLISTSIZE);
assignchunk(videomemory, u_long, chipptr, videomemorysize);
assignchunk(videomemory, u_long, chipptr, fb_info.fix.smem_len);
assignchunk(spritememory, u_long, chipptr, SPRITEMEMSIZE);
assignchunk(dummysprite, u_short *, chipptr, DUMMYSPRITEMEMSIZE);
assignchunk(copdisplay.init, copins *, chipptr, COPINITSIZE);
......@@ -1734,11 +2416,12 @@ int __init amifb_init(void)
/*
* access the videomem with writethrough cache
*/
videomemory_phys = (u_long)ZTWO_PADDR(videomemory);
videomemory = (u_long)ioremap_writethrough(videomemory_phys, videomemorysize);
fb_info.fix.smem_start = (u_long)ZTWO_PADDR(videomemory);
videomemory = (u_long)ioremap_writethrough(fb_info.fix.smem_start,
fb_info.fix.smem_len);
if (!videomemory) {
printk("amifb: WARNING! unable to map videomem cached writethrough\n");
videomemory = ZTWO_VADDR(videomemory_phys);
videomemory = ZTWO_VADDR(fb_info.fix.smem_start);
}
fb_info.screen_base = (char *)videomemory;
......@@ -1763,19 +2446,18 @@ int __init amifb_init(void)
goto amifb_error;
}
amifb_set_var(&var, -1, &fb_info);
fb_alloc_cmap(&fb_info.cmap, 1<<fb_info.var.bits_per_pixel, 0);
if (register_framebuffer(&fb_info) < 0) {
err = -EINVAL;
goto amifb_error;
}
printk("fb%d: %s frame buffer device, using %ldK of video memory\n",
minor(fb_info.node), fb_info.modename,
videomemorysize>>10);
printk("fb%d: %s frame buffer device, using %dK of video memory\n",
minor(fb_info.node), fb_info.fix.id, fb_info.fix.smem_len>>10);
return 0;
amifb_error:
amifb_deinit();
return err;
......@@ -1783,33 +2465,12 @@ int __init amifb_init(void)
static void amifb_deinit(void)
{
chipfree();
fb_dealloc_cmap(&fb_info.cmap);
chipfree();
release_mem_region(CUSTOM_PHYSADDR+0xe0, 0x120);
custom.dmacon = DMAF_ALL | DMAF_MASTER;
}
static int amifbcon_switch(int con, struct fb_info *info)
{
/* Do we have to save the colormap? */
if (fb_display[info->currcon].cmap.len)
fb_get_cmap(&fb_display[info->currcon].cmap, 1, ami_getcolreg, info);
info->currcon = con;
ami_set_var(&fb_display[con].var);
/* Install new colormap */
do_install_cmap(con, info);
return 0;
}
/*
* Update the `var' structure (called by fbcon.c)
*/
static int amifbcon_updatevar(int con, struct fb_info *info)
{
ami_pan_var(&fb_display[con].var);
return 0;
}
/*
* Blank the display.
......@@ -1821,6 +2482,10 @@ static int amifb_blank(int blank, struct fb_info *info)
return 0;
}
/*
* Flash the cursor (called by VBlank interrupt)
*/
static int flash_cursor(void)
{
static int cursorcount = 1;
......@@ -1874,50 +2539,6 @@ static void amifb_interrupt(int irq, void *dev_id, struct pt_regs *fp)
/* --------------------------- Hardware routines --------------------------- */
/*
* This function should fill in the `fix' structure based on the
* values in the `par' structure.
*/
static int ami_encode_fix(struct fb_fix_screeninfo *fix,
struct amifb_par *par)
{
memset(fix, 0, sizeof(struct fb_fix_screeninfo));
strcpy(fix->id, amifb_name);
fix->smem_start = videomemory_phys;
fix->smem_len = videomemorysize;
#ifdef FBCON_HAS_MFB
if (par->bpp == 1) {
fix->type = FB_TYPE_PACKED_PIXELS;
fix->type_aux = 0;
} else
#endif
if (amifb_ilbm) {
fix->type = FB_TYPE_INTERLEAVED_PLANES;
fix->type_aux = par->next_line;
} else {
fix->type = FB_TYPE_PLANES;
fix->type_aux = 0;
}
fix->line_length = div8(upx(16<<maxfmode, par->vxres));
fix->visual = FB_VISUAL_PSEUDOCOLOR;
if (par->vmode & FB_VMODE_YWRAP) {
fix->ywrapstep = 1;
fix->xpanstep = fix->ypanstep = 0;
} else {
fix->ywrapstep = 0;
if (par->vmode &= FB_VMODE_SMOOTH_XPAN)
fix->xpanstep = 1;
else
fix->xpanstep = 16<<maxfmode;
fix->ypanstep = 1;
}
fix->accel = FB_ACCEL_AMIGABLITT;
return 0;
}
/*
* Get the video params out of `var'. If a value doesn't fit, round
* it up, if it's too big, return -EINVAL.
......@@ -2074,7 +2695,7 @@ static int ami_decode_var(struct fb_var_screeninfo *var,
if (!IS_OCS) {
par->beamcon0 = BMC0_PAL;
par->bplcon3 |= BPC3_BRDRBLNK;
} else if (AMIGAHW_PRESENT(AGNUS_HR_PAL) ||
} else if (AMIGAHW_PRESENT(AGNUS_HR_PAL) ||
AMIGAHW_PRESENT(AGNUS_HR_NTSC)) {
par->beamcon0 = BMC0_PAL;
par->hsstop = 1;
......@@ -2104,7 +2725,7 @@ static int ami_decode_var(struct fb_var_screeninfo *var,
if (!IS_OCS) {
par->beamcon0 = 0;
par->bplcon3 |= BPC3_BRDRBLNK;
} else if (AMIGAHW_PRESENT(AGNUS_HR_PAL) ||
} else if (AMIGAHW_PRESENT(AGNUS_HR_PAL) ||
AMIGAHW_PRESENT(AGNUS_HR_NTSC)) {
par->beamcon0 = 0;
par->hsstop = 1;
......@@ -2235,14 +2856,14 @@ static int ami_decode_var(struct fb_var_screeninfo *var,
if (amifb_ilbm) {
par->next_plane = div8(upx(16<<maxfmode, par->vxres));
par->next_line = par->bpp*par->next_plane;
if (par->next_line * par->vyres > videomemorysize) {
if (par->next_line * par->vyres > fb_info.fix.smem_len) {
DPRINTK("too few video mem\n");
return -EINVAL;
}
} else {
par->next_line = div8(upx(16<<maxfmode, par->vxres));
par->next_plane = par->vyres*par->next_line;
if (par->next_plane * par->bpp > videomemorysize) {
if (par->next_plane * par->bpp > fb_info.fix.smem_len) {
DPRINTK("too few video mem\n");
return -EINVAL;
}
......@@ -2402,38 +3023,6 @@ static int ami_encode_var(struct fb_var_screeninfo *var,
return 0;
}
/*
* Get current hardware setting
*/
static void ami_get_par(struct amifb_par *par)
{
*par = currentpar;
}
/*
* Set new videomode
*/
static void ami_set_var(struct fb_var_screeninfo *var)
{
do_vmode_pan = 0;
do_vmode_full = 0;
ami_decode_var(var, &currentpar);
ami_build_copper();
do_vmode_full = 1;
}
#ifdef DEBUG
static void ami_set_par(struct amifb_par *par)
{
do_vmode_pan = 0;
do_vmode_full = 0;
currentpar = *par;
ami_build_copper();
do_vmode_full = 1;
}
#endif
/*
* Pan or Wrap the Display
......@@ -2506,16 +3095,16 @@ static int ami_update_par(void)
par->bpl1mod = par->bpl2mod;
if (par->yoffset) {
par->bplpt0 = videomemory_phys + par->next_line*par->yoffset + move;
par->bplpt0 = fb_info.fix.smem_start + par->next_line*par->yoffset + move;
if (par->vmode & FB_VMODE_YWRAP) {
if (par->yoffset > par->vyres-par->yres) {
par->bplpt0wrap = videomemory_phys + move;
par->bplpt0wrap = fb_info.fix.smem_start + move;
if (par->bplcon0 & BPC0_LACE && mod2(par->diwstrt_v+par->vyres-par->yoffset))
par->bplpt0wrap += par->next_line;
}
}
} else
par->bplpt0 = videomemory_phys + move;
par->bplpt0 = fb_info.fix.smem_start + move;
if (par->bplcon0 & BPC0_LACE && mod2(par->diwstrt_v))
par->bplpt0 += par->next_line;
......@@ -2523,45 +3112,6 @@ static int ami_update_par(void)
return 0;
}
/*
* Read a single color register and split it into
* colors/transparent. Return != 0 for invalid regno.
*/
static int ami_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
u_int *transp, struct fb_info *info)
{
int len, tr, tg, tb;
if (IS_AGA) {
if (regno > 255)
return 1;
len = 8;
} else if (currentpar.bplcon0 & BPC0_SHRES) {
if (regno > 3)
return 1;
len = 2;
} else {
if (regno > 31)
return 1;
len = 4;
}
tr = palette[regno].red>>(8-len);
tg = palette[regno].green>>(8-len);
tb = palette[regno].blue>>(8-len);
while (len < 16) {
tr |= tr<<len;
tg |= tg<<len;
tb |= tb<<len;
len <<= 1;
}
*red = tr;
*green = tg;
*blue = tb;
*transp = 0;
return 0;
}
/*
* Set a single color register. The values supplied are already
......@@ -2585,9 +3135,11 @@ static int amifb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
red >>= 8;
green >>= 8;
blue >>= 8;
palette[regno].red = red;
palette[regno].green = green;
palette[regno].blue = blue;
if (!regno) {
red0 = red;
green0 = green;
blue0 = blue;
}
/*
* Update the corresponding Hardware Color Register, unless it's Color
......@@ -2650,6 +3202,7 @@ static void ami_update_display(void)
static void ami_init_display(void)
{
struct amifb_par *par = &currentpar;
int i;
custom.bplcon0 = par->bplcon0 & ~BPC0_LACE;
custom.bplcon2 = (IS_OCS ? 0 : BPC2_KILLEHB) | BPC2_PF2P2 | BPC2_PF1P2;
......@@ -2685,18 +3238,16 @@ static void ami_init_display(void)
is_lace = par->bplcon0 & BPC0_LACE ? 1 : 0;
#if 1
if (is_lace) {
if (custom.vposr & 0x8000)
custom.cop2lc = (u_short *)ZTWO_PADDR(copdisplay.list[currentcop][1]);
else
custom.cop2lc = (u_short *)ZTWO_PADDR(copdisplay.list[currentcop][0]);
i = custom.vposr >> 15;
} else {
custom.vposw = custom.vposr | 0x8000;
custom.cop2lc = (u_short *)ZTWO_PADDR(copdisplay.list[currentcop][1]);
i = 1;
}
#else
i = 1;
custom.vposw = custom.vposr | 0x8000;
custom.cop2lc = (u_short *)ZTWO_PADDR(copdisplay.list[currentcop][1]);
#endif
custom.cop2lc = (u_short *)ZTWO_PADDR(copdisplay.list[currentcop][i]);
}
/*
......@@ -2744,9 +3295,9 @@ static void ami_do_blank(void)
}
} else {
custom.dmacon = DMAF_SETCLR | DMAF_RASTER | DMAF_SPRITE;
red = palette[0].red;
green = palette[0].green;
blue = palette[0].blue;
red = red0;
green = green0;
blue = blue0;
if (!IS_OCS) {
custom.hsstrt = hsstrt2hw(par->hsstrt);
custom.hsstop = hsstop2hw(par->hsstop);
......@@ -2782,11 +3333,7 @@ static void ami_do_blank(void)
is_blanked = do_blank > 0 ? do_blank : 0;
}
/*
* Flash the cursor (called by VBlank interrupt)
*/
static int ami_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix, int con)
static int ami_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix)
{
struct amifb_par *par = &currentpar;
......@@ -2797,7 +3344,7 @@ static int ami_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix, int con)
return 0;
}
static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data, int con)
static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data)
{
struct amifb_par *par = &currentpar;
register u_short *lspr, *sspr;
......@@ -2846,7 +3393,7 @@ static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data, i
"swap %1 ; lslw #1,%1 ; roxlb #1,%0"
: "=d" (color), "=d" (datawords) : "1" (datawords));
#else
color = (((datawords >> 30) & 2)
color = (((datawords >> 30) & 2)
| ((datawords >> 15) & 1));
datawords <<= 1;
#endif
......@@ -2872,7 +3419,7 @@ static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data, i
return 0;
}
static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data, int con)
static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data)
{
struct amifb_par *par = &currentpar;
register u_short *lspr, *sspr;
......@@ -2991,7 +3538,7 @@ static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data, i
return 0;
}
static int ami_get_cursorstate(struct fb_cursorstate *state, int con)
static int ami_get_cursorstate(struct fb_cursorstate *state)
{
struct amifb_par *par = &currentpar;
......@@ -3001,7 +3548,7 @@ static int ami_get_cursorstate(struct fb_cursorstate *state, int con)
return 0;
}
static int ami_set_cursorstate(struct fb_cursorstate *state, int con)
static int ami_set_cursorstate(struct fb_cursorstate *state)
{
struct amifb_par *par = &currentpar;
......@@ -3062,6 +3609,7 @@ static void ami_set_sprite(void)
}
}
/*
* Initialise the Copper Initialisation List
*/
......
drivers/video/c2p.c 0 → 100644
View file @ 2a12c1bd
/*
* Fast C2P (Chunky-to-Planar) Conversion
*
* Copyright (C) 2003 Geert Uytterhoeven
*
* NOTES:
* - This code was inspired by Scout's C2P tutorial
* - It assumes to run on a big endian system
*
* 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/string.h>
#include "c2p.h"
/*
* Basic transpose step
*/
#define _transp(d, i1, i2, shift, mask) \
do { \
u32 t = (d[i1] ^ (d[i2] >> shift)) & mask; \
d[i1] ^= t; \
d[i2] ^= t << shift; \
} while (0)
static inline u32 get_mask(int n)
{
switch (n) {
case 1:
return 0x55555555;
break;
case 2:
return 0x33333333;
break;
case 4:
return 0x0f0f0f0f;
break;
case 8:
return 0x00ff00ff;
break;
case 16:
return 0x0000ffff;
break;
}
return 0;
}
#define transp_nx1(d, n) \
do { \
u32 mask = get_mask(n); \
/* First block */ \
_transp(d, 0, 1, n, mask); \
/* Second block */ \
_transp(d, 2, 3, n, mask); \
/* Third block */ \
_transp(d, 4, 5, n, mask); \
/* Fourth block */ \
_transp(d, 6, 7, n, mask); \
} while (0)
#define transp_nx2(d, n) \
do { \
u32 mask = get_mask(n); \
/* First block */ \
_transp(d, 0, 2, n, mask); \
_transp(d, 1, 3, n, mask); \
/* Second block */ \
_transp(d, 4, 6, n, mask); \
_transp(d, 5, 7, n, mask); \
} while (0)
#define transp_nx4(d, n) \
do { \
u32 mask = get_mask(n); \
_transp(d, 0, 4, n, mask); \
_transp(d, 1, 5, n, mask); \
_transp(d, 2, 6, n, mask); \
_transp(d, 3, 7, n, mask); \
} while (0)
#define transp(d, n, m) transp_nx ## m(d, n)
/*
* Perform a full C2P step on 32 8-bit pixels, stored in 8 32-bit words
* containing
* - 32 8-bit chunky pixels on input
* - permuted planar data on output
*/
static void c2p_8bpp(u32 d[8])
{
transp(d, 16, 4);
transp(d, 8, 2);
transp(d, 4, 1);
transp(d, 2, 4);
transp(d, 1, 2);
}
/*
* Array containing the permution indices of the planar data after c2p
*/
static const int perm_c2p_8bpp[8] = { 7, 5, 3, 1, 6, 4, 2, 0 };
/*
* Compose two values, using a bitmask as decision value
* This is equivalent to (a & mask) | (b & ~mask)
*/
static inline unsigned long comp(unsigned long a, unsigned long b,
unsigned long mask)
{
return ((a ^ b) & mask) ^ b;
}
/*
* Store a full block of planar data after c2p conversion
*/
static inline void store_planar(char *dst, u32 dst_inc, u32 bpp, u32 d[8])
{
int i;
for (i = 0; i < bpp; i++, dst += dst_inc)
*(u32 *)dst = d[perm_c2p_8bpp[i]];
}
/*
* Store a partial block of planar data after c2p conversion
*/
static inline void store_planar_masked(char *dst, u32 dst_inc, u32 bpp,
u32 d[8], u32 mask)
{
int i;
for (i = 0; i < bpp; i++, dst += dst_inc)
*(u32 *)dst = comp(d[perm_c2p_8bpp[i]], *(u32 *)dst, mask);
}
/*
* c2p - Copy 8-bit chunky image data to a planar frame buffer
* @dst: Starting address of the planar frame buffer
* @dx: Horizontal destination offset (in pixels)
* @dy: Vertical destination offset (in pixels)
* @width: Image width (in pixels)
* @height: Image height (in pixels)
* @dst_nextline: Frame buffer offset to the next line (in bytes)
* @dst_nextplane: Frame buffer offset to the next plane (in bytes)
* @src_nextline: Image offset to the next line (in bytes)
* @bpp: Bits per pixel of the planar frame buffer (1-8)
*/
void c2p(u8 *dst, const u8 *src, u32 dx, u32 dy, u32 width, u32 height,
u32 dst_nextline, u32 dst_nextplane, u32 src_nextline, u32 bpp)
{
int dst_idx;
u32 d[8], first, last, w;
const u8 *c;
u8 *p;
dst += dy*dst_nextline+(dx & ~31);
dst_idx = dx % 32;
first = ~0UL >> dst_idx;
last = ~(~0UL >> ((dst_idx+width) % 32));
while (height--) {
c = src;
p = dst;
w = width;
if (dst_idx+width <= 32) {
/* Single destination word */
first &= last;
memset(d, 0, sizeof(d));
memcpy((u8 *)d+dst_idx, c, width);
c += width;
c2p_8bpp(d);
store_planar_masked(p, dst_nextplane, bpp, d, first);
p += 4;
} else {
/* Multiple destination words */
w = width;
/* Leading bits */
if (dst_idx) {
w = 32 - dst_idx;
memset(d, 0, dst_idx);
memcpy((u8 *)d+dst_idx, c, w);
c += w;
c2p_8bpp(d);
store_planar_masked(p, dst_nextplane, bpp, d, first);
p += 4;
w = width-w;
}
/* Main chunk */
while (w >= 32) {
memcpy(d, c, 32);
c += 32;
c2p_8bpp(d);
store_planar(p, dst_nextplane, bpp, d);
p += 4;
w -= 32;
}
/* Trailing bits */
w %= 32;
if (w > 0) {
memcpy(d, c, w);
memset((u8 *)d+w, 0, 32-w);
c2p_8bpp(d);
store_planar_masked(p, dst_nextplane, bpp, d, last);
}
}
src += src_nextline;
dst += dst_nextline;
}
}
drivers/video/c2p.h 0 → 100644
View file @ 2a12c1bd
/*
* Fast C2P (Chunky-to-Planar) Conversion
*
* Copyright (C) 2003 Geert Uytterhoeven
*
* 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/types.h>
extern void c2p(u8 *dst, const u8 *src, u32 dx, u32 dy, u32 width, u32 height,
u32 dst_nextline, u32 dst_nextplane, u32 src_nextline,
u32 bpp);
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7