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提交 a1005012 编写于 作者: M Michael Schmitz 提交者： Linus Torvalds
浏览文件
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m68k: Atari fb revival 

Update the atari fb to 2.6 by Michael Schmitz,
Reformatting and rewrite of bit plane functions by Roman Zippel,
A few more fixes by Geert Uytterhoeven.
Signed-off-by: NMichael Schmitz <schmitz@debian.org>
Signed-off-by: NRoman Zippel <zippel@linux-m68k.org>
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 c04cb856
隐藏空白更改
内联 并排
Showing with 2988 addition and 1317 deletion
drivers/video/Kconfig
浏览文件 @ a1005012
......@@ -389,7 +389,10 @@ config FB_ARC
config FB_ATARI
bool "Atari native chipset support"
depends on (FB = y) && ATARI && BROKEN
depends on (FB = y) && ATARI
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
help
This is the frame buffer device driver for the builtin graphics
chipset found in Ataris.
......
drivers/video/Makefile
浏览文件 @ a1005012
......@@ -63,7 +63,8 @@ obj-$(CONFIG_FB_TCX) += tcx.o sbuslib.o
obj-$(CONFIG_FB_LEO) += leo.o sbuslib.o
obj-$(CONFIG_FB_SGIVW) += sgivwfb.o
obj-$(CONFIG_FB_ACORN) += acornfb.o
obj-$(CONFIG_FB_ATARI) += atafb.o
obj-$(CONFIG_FB_ATARI) += atafb.o c2p.o atafb_mfb.o \
atafb_iplan2p2.o atafb_iplan2p4.o atafb_iplan2p8.o
obj-$(CONFIG_FB_MAC) += macfb.o
obj-$(CONFIG_FB_HGA) += hgafb.o
obj-$(CONFIG_FB_IGA) += igafb.o
......
drivers/video/atafb.c
浏览文件 @ a1005012
......@@ -2,7 +2,7 @@
* linux/drivers/video/atafb.c -- Atari builtin chipset frame buffer device
*
* Copyright (C) 1994 Martin Schaller & Roman Hodek
*
*
* 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.
......@@ -70,14 +70,8 @@
#include <linux/fb.h>
#include <asm/atarikb.h>
#include <video/fbcon.h>
#include <video/fbcon-cfb8.h>
#include <video/fbcon-cfb16.h>
#include <video/fbcon-iplan2p2.h>
#include <video/fbcon-iplan2p4.h>
#include <video/fbcon-iplan2p8.h>
#include <video/fbcon-mfb.h>
#include "c2p.h"
#include "atafb.h"
#define SWITCH_ACIA 0x01 /* modes for switch on OverScan */
#define SWITCH_SND6 0x40
......@@ -87,22 +81,48 @@
#define up(x, r) (((x) + (r) - 1) & ~((r)-1))
/*
* Interface to the world
*/
static int atafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info);
static int atafb_set_par(struct fb_info *info);
static int atafb_setcolreg(unsigned int regno, unsigned int red, unsigned int green,
unsigned int blue, unsigned int transp,
struct fb_info *info);
static int atafb_blank(int blank, struct fb_info *info);
static int atafb_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info);
static void atafb_fillrect(struct fb_info *info,
const struct fb_fillrect *rect);
static void atafb_copyarea(struct fb_info *info,
const struct fb_copyarea *region);
static void atafb_imageblit(struct fb_info *info, const struct fb_image *image);
static int atafb_ioctl(struct fb_info *info, unsigned int cmd,
unsigned long arg);
static int default_par=0; /* default resolution (0=none) */
static unsigned long default_mem_req=0;
static int default_par; /* default resolution (0=none) */
static int hwscroll=-1;
static unsigned long default_mem_req;
static int hwscroll = -1;
static int use_hwscroll = 1;
static int sttt_xres=640,st_yres=400,tt_yres=480;
static int sttt_xres_virtual=640,sttt_yres_virtual=400;
static int ovsc_offset=0, ovsc_addlen=0;
static int sttt_xres = 640, st_yres = 400, tt_yres = 480;
static int sttt_xres_virtual = 640, sttt_yres_virtual = 400;
static int ovsc_offset, ovsc_addlen;
/*
* Hardware parameters for current mode
*/
static struct atafb_par {
void *screen_base;
int yres_virtual;
u_long next_line;
u_long next_plane;
#if defined ATAFB_TT || defined ATAFB_STE
union {
struct {
......@@ -138,7 +158,7 @@ static struct atafb_par {
/* Don't calculate an own resolution, and thus don't change the one found when
* booting (currently used for the Falcon to keep settings for internal video
* hardware extensions (e.g. ScreenBlaster) */
static int DontCalcRes = 0;
static int DontCalcRes = 0;
#ifdef ATAFB_FALCON
#define HHT hw.falcon.hht
......@@ -163,83 +183,84 @@ static int DontCalcRes = 0;
#define VMO_PREMASK 0x0c
#endif
static struct fb_info fb_info;
static struct fb_info fb_info = {
.fix = {
.id = "Atari ",
.visual = FB_VISUAL_PSEUDOCOLOR,
.accel = FB_ACCEL_NONE,
}
};
static void *screen_base; /* base address of screen */
static void *real_screen_base; /* (only for Overscan) */
static int screen_len;
static int current_par_valid=0;
static int mono_moni=0;
static int current_par_valid;
static struct display disp;
static int mono_moni;
#ifdef ATAFB_EXT
/* external video handling */
static unsigned external_xres;
static unsigned external_xres_virtual;
static unsigned external_yres;
/* not needed - atafb will never support panning/hardwarescroll with external
* static unsigned external_yres_virtual;
*/
/* external video handling */
static unsigned int external_xres;
static unsigned int external_xres_virtual;
static unsigned int external_yres;
static unsigned external_depth;
static int external_pmode;
static void *external_addr = 0;
static unsigned long external_len;
static unsigned long external_vgaiobase = 0;
static unsigned int external_bitspercol = 6;
/*
JOE <joe@amber.dinoco.de>:
added card type for external driver, is only needed for
colormap handling.
*/
/*
* not needed - atafb will never support panning/hardwarescroll with external
* static unsigned int external_yres_virtual;
*/
static unsigned int external_depth;
static int external_pmode;
static void *external_addr;
static unsigned long external_len;
static unsigned long external_vgaiobase;
static unsigned int external_bitspercol = 6;
/*
* JOE <joe@amber.dinoco.de>:
* added card type for external driver, is only needed for
* colormap handling.
*/
enum cardtype { IS_VGA, IS_MV300 };
static enum cardtype external_card_type = IS_VGA;
/*
The MV300 mixes the color registers. So we need an array of munged
indices in order to access the correct reg.
*/
static int MV300_reg_1bit[2]={0,1};
static int MV300_reg_4bit[16]={
0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15 };
static int MV300_reg_8bit[256]={
0, 128, 64, 192, 32, 160, 96, 224, 16, 144, 80, 208, 48, 176, 112, 240,
8, 136, 72, 200, 40, 168, 104, 232, 24, 152, 88, 216, 56, 184, 120, 248,
4, 132, 68, 196, 36, 164, 100, 228, 20, 148, 84, 212, 52, 180, 116, 244,
12, 140, 76, 204, 44, 172, 108, 236, 28, 156, 92, 220, 60, 188, 124, 252,
2, 130, 66, 194, 34, 162, 98, 226, 18, 146, 82, 210, 50, 178, 114, 242,
10, 138, 74, 202, 42, 170, 106, 234, 26, 154, 90, 218, 58, 186, 122, 250,
6, 134, 70, 198, 38, 166, 102, 230, 22, 150, 86, 214, 54, 182, 118, 246,
14, 142, 78, 206, 46, 174, 110, 238, 30, 158, 94, 222, 62, 190, 126, 254,
1, 129, 65, 193, 33, 161, 97, 225, 17, 145, 81, 209, 49, 177, 113, 241,
9, 137, 73, 201, 41, 169, 105, 233, 25, 153, 89, 217, 57, 185, 121, 249,
5, 133, 69, 197, 37, 165, 101, 229, 21, 149, 85, 213, 53, 181, 117, 245,
13, 141, 77, 205, 45, 173, 109, 237, 29, 157, 93, 221, 61, 189, 125, 253,
3, 131, 67, 195, 35, 163, 99, 227, 19, 147, 83, 211, 51, 179, 115, 243,
11, 139, 75, 203, 43, 171, 107, 235, 27, 155, 91, 219, 59, 187, 123, 251,
7, 135, 71, 199, 39, 167, 103, 231, 23, 151, 87, 215, 55, 183, 119, 247,
15, 143, 79, 207, 47, 175, 111, 239, 31, 159, 95, 223, 63, 191, 127, 255 };
* The MV300 mixes the color registers. So we need an array of munged
* indices in order to access the correct reg.
*/
static int MV300_reg_1bit[2] = {
0, 1
};
static int MV300_reg_4bit[16] = {
0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15
};
static int MV300_reg_8bit[256] = {
0, 128, 64, 192, 32, 160, 96, 224, 16, 144, 80, 208, 48, 176, 112, 240,
8, 136, 72, 200, 40, 168, 104, 232, 24, 152, 88, 216, 56, 184, 120, 248,
4, 132, 68, 196, 36, 164, 100, 228, 20, 148, 84, 212, 52, 180, 116, 244,
12, 140, 76, 204, 44, 172, 108, 236, 28, 156, 92, 220, 60, 188, 124, 252,
2, 130, 66, 194, 34, 162, 98, 226, 18, 146, 82, 210, 50, 178, 114, 242,
10, 138, 74, 202, 42, 170, 106, 234, 26, 154, 90, 218, 58, 186, 122, 250,
6, 134, 70, 198, 38, 166, 102, 230, 22, 150, 86, 214, 54, 182, 118, 246,
14, 142, 78, 206, 46, 174, 110, 238, 30, 158, 94, 222, 62, 190, 126, 254,
1, 129, 65, 193, 33, 161, 97, 225, 17, 145, 81, 209, 49, 177, 113, 241,
9, 137, 73, 201, 41, 169, 105, 233, 25, 153, 89, 217, 57, 185, 121, 249,
5, 133, 69, 197, 37, 165, 101, 229, 21, 149, 85, 213, 53, 181, 117, 245,
13, 141, 77, 205, 45, 173, 109, 237, 29, 157, 93, 221, 61, 189, 125, 253,
3, 131, 67, 195, 35, 163, 99, 227, 19, 147, 83, 211, 51, 179, 115, 243,
11, 139, 75, 203, 43, 171, 107, 235, 27, 155, 91, 219, 59, 187, 123, 251,
7, 135, 71, 199, 39, 167, 103, 231, 23, 151, 87, 215, 55, 183, 119, 247,
15, 143, 79, 207, 47, 175, 111, 239, 31, 159, 95, 223, 63, 191, 127, 255
};
static int *MV300_reg = MV300_reg_8bit;
/*
And on the MV300 it's difficult to read out the hardware palette. So we
just keep track of the set colors in our own array here, and use that!
*/
static struct { unsigned char red,green,blue,pad; } ext_color[256];
#endif /* ATAFB_EXT */
static int inverse=0;
static int inverse;
extern int fontheight_8x8;
extern int fontwidth_8x8;
......@@ -249,96 +270,154 @@ extern int fontheight_8x16;
extern int fontwidth_8x16;
extern unsigned char fontdata_8x16[];
/*
* struct fb_ops {
* * open/release and usage marking
* struct module *owner;
* int (*fb_open)(struct fb_info *info, int user);
* int (*fb_release)(struct fb_info *info, int user);
*
* * For framebuffers with strange non linear layouts or that do not
* * work with normal memory mapped access
* ssize_t (*fb_read)(struct file *file, char __user *buf, size_t count, loff_t *ppos);
* ssize_t (*fb_write)(struct file *file, const char __user *buf, size_t count, loff_t *ppos);
*
* * checks var and eventually tweaks it to something supported,
* * DOES NOT MODIFY PAR *
* int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
*
* * set the video mode according to info->var *
* int (*fb_set_par)(struct fb_info *info);
*
* * set color register *
* int (*fb_setcolreg)(unsigned int regno, unsigned int red, unsigned int green,
* unsigned int blue, unsigned int transp, struct fb_info *info);
*
* * set color registers in batch *
* int (*fb_setcmap)(struct fb_cmap *cmap, 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, struct fb_info *info);
*
* *** The meat of the drawing engine ***
* * Draws a rectangle *
* void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
* * Copy data from area to another *
* void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
* * Draws a image to the display *
* void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
*
* * Draws cursor *
* int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
*
* * Rotates the display *
* void (*fb_rotate)(struct fb_info *info, int angle);
*
* * wait for blit idle, optional *
* int (*fb_sync)(struct fb_info *info);
*
* * perform fb specific ioctl (optional) *
* int (*fb_ioctl)(struct fb_info *info, unsigned int cmd,
* unsigned long arg);
*
* * Handle 32bit compat ioctl (optional) *
* int (*fb_compat_ioctl)(struct fb_info *info, unsigned int cmd,
* unsigned long arg);
*
* * perform fb specific mmap *
* int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
*
* * save current hardware state *
* void (*fb_save_state)(struct fb_info *info);
*
* * restore saved state *
* void (*fb_restore_state)(struct fb_info *info);
* } ;
*/
/* ++roman: This structure abstracts from the underlying hardware (ST(e),
* TT, or Falcon.
*
* int (*detect)( void )
* int (*detect)(void)
* This function should detect the current video mode settings and
* store them in atafb_predefined[0] for later reference by the
* user. Return the index+1 of an equivalent predefined mode or 0
* if there is no such.
*
* int (*encode_fix)( struct fb_fix_screeninfo *fix,
* struct atafb_par *par )
*
* int (*encode_fix)(struct fb_fix_screeninfo *fix,
* struct atafb_par *par)
* This function should fill in the 'fix' structure based on the
* values in the 'par' structure.
*
* int (*decode_var)( struct fb_var_screeninfo *var,
* struct atafb_par *par )
* !!! Obsolete, perhaps !!!
*
* int (*decode_var)(struct fb_var_screeninfo *var,
* struct atafb_par *par)
* Get the video params out of 'var'. If a value doesn't fit, round
* it up, if it's too big, return EINVAL.
* Round up in the following order: bits_per_pixel, xres, yres,
* xres_virtual, yres_virtual, xoffset, yoffset, grayscale, bitfields,
* Round up in the following order: bits_per_pixel, xres, yres,
* xres_virtual, yres_virtual, xoffset, yoffset, grayscale, bitfields,
* horizontal timing, vertical timing.
*
* int (*encode_var)( struct fb_var_screeninfo *var,
* struct atafb_par *par );
* int (*encode_var)(struct fb_var_screeninfo *var,
* struct atafb_par *par);
* Fill the 'var' structure based on the values in 'par' and maybe
* other values read out of the hardware.
*
* void (*get_par)( struct atafb_par *par )
*
* void (*get_par)(struct atafb_par *par)
* Fill the hardware's 'par' structure.
*
* void (*set_par)( struct atafb_par *par )
* !!! Used only by detect() !!!
*
* void (*set_par)(struct atafb_par *par)
* Set the hardware according to 'par'.
*
* int (*getcolreg)( unsigned regno, unsigned *red,
* unsigned *green, unsigned *blue,
* unsigned *transp, struct fb_info *info )
* Read a single color register and split it into
* colors/transparent. Return != 0 for invalid regno.
*
* void (*set_screen_base)(void *s_base)
* Set the base address of the displayed frame buffer. Only called
* if yres_virtual > yres or xres_virtual > xres.
*
* int (*blank)( int blank_mode )
* Blank the screen if blank_mode!=0, else unblank. If blank==NULL then
* int (*blank)(int blank_mode)
* Blank the screen if blank_mode != 0, else unblank. If blank == NULL then
* the caller blanks by setting the CLUT to all black. Return 0 if blanking
* succeeded, !=0 if un-/blanking failed due to e.g. a video mode which
* doesn't support it. Implements VESA suspend and powerdown modes on
* hardware that supports disabling hsync/vsync:
* blank_mode==2: suspend vsync, 3:suspend hsync, 4: powerdown.
* blank_mode == 2: suspend vsync, 3:suspend hsync, 4: powerdown.
*/
static struct fb_hwswitch {
int (*detect)( void );
int (*encode_fix)( struct fb_fix_screeninfo *fix,
struct atafb_par *par );
int (*decode_var)( struct fb_var_screeninfo *var,
struct atafb_par *par );
int (*encode_var)( struct fb_var_screeninfo *var,
struct atafb_par *par );
void (*get_par)( struct atafb_par *par );
void (*set_par)( struct atafb_par *par );
int (*getcolreg)( unsigned regno, unsigned *red,
unsigned *green, unsigned *blue,
unsigned *transp, struct fb_info *info );
int (*detect)(void);
int (*encode_fix)(struct fb_fix_screeninfo *fix,
struct atafb_par *par);
int (*decode_var)(struct fb_var_screeninfo *var,
struct atafb_par *par);
int (*encode_var)(struct fb_var_screeninfo *var,
struct atafb_par *par);
void (*get_par)(struct atafb_par *par);
void (*set_par)(struct atafb_par *par);
void (*set_screen_base)(void *s_base);
int (*blank)( int blank_mode );
int (*pan_display)( struct fb_var_screeninfo *var,
struct atafb_par *par);
int (*blank)(int blank_mode);
int (*pan_display)(struct fb_var_screeninfo *var,
struct fb_info *info);
} *fbhw;
static char *autodetect_names[] = {"autodetect", NULL};
static char *stlow_names[] = {"stlow", NULL};
static char *stmid_names[] = {"stmid", "default5", NULL};
static char *sthigh_names[] = {"sthigh", "default4", NULL};
static char *ttlow_names[] = {"ttlow", NULL};
static char *ttmid_names[]= {"ttmid", "default1", NULL};
static char *tthigh_names[]= {"tthigh", "default2", NULL};
static char *vga2_names[] = {"vga2", NULL};
static char *vga4_names[] = {"vga4", NULL};
static char *vga16_names[] = {"vga16", "default3", NULL};
static char *vga256_names[] = {"vga256", NULL};
static char *falh2_names[] = {"falh2", NULL};
static char *falh16_names[] = {"falh16", NULL};
static char *autodetect_names[] = { "autodetect", NULL };
static char *stlow_names[] = { "stlow", NULL };
static char *stmid_names[] = { "stmid", "default5", NULL };
static char *sthigh_names[] = { "sthigh", "default4", NULL };
static char *ttlow_names[] = { "ttlow", NULL };
static char *ttmid_names[] = { "ttmid", "default1", NULL };
static char *tthigh_names[] = { "tthigh", "default2", NULL };
static char *vga2_names[] = { "vga2", NULL };
static char *vga4_names[] = { "vga4", NULL };
static char *vga16_names[] = { "vga16", "default3", NULL };
static char *vga256_names[] = { "vga256", NULL };
static char *falh2_names[] = { "falh2", NULL };
static char *falh16_names[] = { "falh16", NULL };
static char **fb_var_names[] = {
/* Writing the name arrays directly in this array (via "(char *[]){...}")
* crashes gcc 2.5.8 (sigsegv) if the inner array
* contains more than two items. I've also seen that all elements
* were identical to the last (my cross-gcc) :-(*/
autodetect_names,
stlow_names,
stmid_names,
......@@ -353,18 +432,17 @@ static char **fb_var_names[] = {
falh2_names,
falh16_names,
NULL
/* ,NULL */ /* this causes a sigsegv on my gcc-2.5.8 */
};
static struct fb_var_screeninfo atafb_predefined[] = {
/*
* yres_virtual==0 means use hw-scrolling if possible, else yres
*/
{ /* autodetect */
0, 0, 0, 0, 0, 0, 0, 0, /* xres-grayscale */
{0, 0, 0}, {0, 0, 0}, {0, 0, 0}, {0, 0, 0}, /* red green blue tran*/
/*
* yres_virtual == 0 means use hw-scrolling if possible, else yres
*/
{ /* autodetect */
0, 0, 0, 0, 0, 0, 0, 0, /* xres-grayscale */
{0, 0, 0}, {0, 0, 0}, {0, 0, 0}, {0, 0, 0}, /* red green blue tran*/
0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 },
{ /* st low */
{ /* st low */
320, 200, 320, 0, 0, 0, 4, 0,
{0, 4, 0}, {0, 4, 0}, {0, 4, 0}, {0, 0, 0},
0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 },
......@@ -414,27 +492,100 @@ static struct fb_var_screeninfo atafb_predefined[] = {
0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 },
};
static int num_atafb_predefined=ARRAY_SIZE(atafb_predefined);
static int num_atafb_predefined = ARRAY_SIZE(atafb_predefined);
static struct fb_videomode atafb_modedb[] __initdata = {
/*
* Atari Video Modes
*
* If you change these, make sure to update DEFMODE_* as well!
*/
static int
get_video_mode(char *vname)
/*
* ST/TT Video Modes
*/
{
/* 320x200, 15 kHz, 60 Hz (ST low) */
"st-low", 60, 320, 200, 32000, 32, 16, 31, 14, 96, 4,
0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
}, {
/* 640x200, 15 kHz, 60 Hz (ST medium) */
"st-mid", 60, 640, 200, 32000, 32, 16, 31, 14, 96, 4,
0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
}, {
/* 640x400, 30.25 kHz, 63.5 Hz (ST high) */
"st-high", 63, 640, 400, 32000, 128, 0, 40, 14, 128, 4,
0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
}, {
/* 320x480, 15 kHz, 60 Hz (TT low) */
"tt-low", 60, 320, 480, 31041, 120, 100, 8, 16, 140, 30,
0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
}, {
/* 640x480, 29 kHz, 57 Hz (TT medium) */
"tt-mid", 60, 640, 480, 31041, 120, 100, 8, 16, 140, 30,
0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
}, {
/* 1280x960, 29 kHz, 60 Hz (TT high) */
"tt-high", 57, 640, 960, 31041, 120, 100, 8, 16, 140, 30,
0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
},
/*
* VGA Video Modes
*/
{
/* 640x480, 31 kHz, 60 Hz (VGA) */
"vga", 63.5, 640, 480, 32000, 18, 42, 31, 11, 96, 3,
0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
}, {
/* 640x400, 31 kHz, 70 Hz (VGA) */
"vga70", 70, 640, 400, 32000, 18, 42, 31, 11, 96, 3,
FB_SYNC_VERT_HIGH_ACT | FB_SYNC_COMP_HIGH_ACT, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
},
/*
* Falcon HiRes Video Modes
*/
{
/* 896x608, 31 kHz, 60 Hz (Falcon High) */
"falh", 60, 896, 608, 32000, 18, 42, 31, 1, 96,3,
0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
},
};
#define NUM_TOTAL_MODES ARRAY_SIZE(atafb_modedb)
static char *mode_option __initdata = NULL;
/* default modes */
#define DEFMODE_TT 5 /* "tt-high" for TT */
#define DEFMODE_F30 7 /* "vga70" for Falcon */
#define DEFMODE_STE 2 /* "st-high" for ST/E */
#define DEFMODE_EXT 6 /* "vga" for external */
static int get_video_mode(char *vname)
{
char ***name_list;
char **name;
int i;
name_list=fb_var_names;
for (i = 0 ; i < num_atafb_predefined ; i++) {
name=*(name_list++);
if (! name || ! *name)
break;
while (*name) {
if (! strcmp(vname, *name))
return i+1;
name++;
char ***name_list;
char **name;
int i;
name_list = fb_var_names;
for (i = 0; i < num_atafb_predefined; i++) {
name = *name_list++;
if (!name || !*name)
break;
while (*name) {
if (!strcmp(vname, *name))
return i + 1;
name++;
}
}
}
return 0;
return 0;
}
......@@ -443,93 +594,84 @@ get_video_mode(char *vname)
#ifdef ATAFB_TT
static int tt_encode_fix( struct fb_fix_screeninfo *fix,
struct atafb_par *par )
static int tt_encode_fix(struct fb_fix_screeninfo *fix, struct atafb_par *par)
{
int mode;
strcpy(fix->id,"Atari Builtin");
strcpy(fix->id, "Atari Builtin");
fix->smem_start = (unsigned long)real_screen_base;
fix->smem_len = screen_len;
fix->type=FB_TYPE_INTERLEAVED_PLANES;
fix->type_aux=2;
fix->visual=FB_VISUAL_PSEUDOCOLOR;
fix->type = FB_TYPE_INTERLEAVED_PLANES;
fix->type_aux = 2;
fix->visual = FB_VISUAL_PSEUDOCOLOR;
mode = par->hw.tt.mode & TT_SHIFTER_MODEMASK;
if (mode == TT_SHIFTER_TTHIGH || mode == TT_SHIFTER_STHIGH) {
fix->type=FB_TYPE_PACKED_PIXELS;
fix->type_aux=0;
fix->type = FB_TYPE_PACKED_PIXELS;
fix->type_aux = 0;
if (mode == TT_SHIFTER_TTHIGH)
fix->visual=FB_VISUAL_MONO01;
fix->visual = FB_VISUAL_MONO01;
}
fix->xpanstep=0;
fix->ypanstep=1;
fix->ywrapstep=0;
fix->xpanstep = 0;
fix->ypanstep = 1;
fix->ywrapstep = 0;
fix->line_length = 0;
fix->accel = FB_ACCEL_ATARIBLITT;
return 0;
}
static int tt_decode_var( struct fb_var_screeninfo *var,
struct atafb_par *par )
static int tt_decode_var(struct fb_var_screeninfo *var, struct atafb_par *par)
{
int xres=var->xres;
int yres=var->yres;
int bpp=var->bits_per_pixel;
int xres = var->xres;
int yres = var->yres;
int bpp = var->bits_per_pixel;
int linelen;
int yres_virtual = var->yres_virtual;
if (mono_moni) {
if (bpp > 1 || xres > sttt_xres*2 || yres >tt_yres*2)
if (bpp > 1 || xres > sttt_xres * 2 || yres > tt_yres * 2)
return -EINVAL;
par->hw.tt.mode=TT_SHIFTER_TTHIGH;
xres=sttt_xres*2;
yres=tt_yres*2;
bpp=1;
par->hw.tt.mode = TT_SHIFTER_TTHIGH;
xres = sttt_xres * 2;
yres = tt_yres * 2;
bpp = 1;
} else {
if (bpp > 8 || xres > sttt_xres || yres > tt_yres)
return -EINVAL;
if (bpp > 4) {
if (xres > sttt_xres/2 || yres > tt_yres)
if (xres > sttt_xres / 2 || yres > tt_yres)
return -EINVAL;
par->hw.tt.mode=TT_SHIFTER_TTLOW;
xres=sttt_xres/2;
yres=tt_yres;
bpp=8;
}
else if (bpp > 2) {
par->hw.tt.mode = TT_SHIFTER_TTLOW;
xres = sttt_xres / 2;
yres = tt_yres;
bpp = 8;
} else if (bpp > 2) {
if (xres > sttt_xres || yres > tt_yres)
return -EINVAL;
if (xres > sttt_xres/2 || yres > st_yres/2) {
par->hw.tt.mode=TT_SHIFTER_TTMID;
xres=sttt_xres;
yres=tt_yres;
bpp=4;
if (xres > sttt_xres / 2 || yres > st_yres / 2) {
par->hw.tt.mode = TT_SHIFTER_TTMID;
xres = sttt_xres;
yres = tt_yres;
bpp = 4;
} else {
par->hw.tt.mode = TT_SHIFTER_STLOW;
xres = sttt_xres / 2;
yres = st_yres / 2;
bpp = 4;
}
else {
par->hw.tt.mode=TT_SHIFTER_STLOW;
xres=sttt_xres/2;
yres=st_yres/2;
bpp=4;
}
}
else if (bpp > 1) {
if (xres > sttt_xres || yres > st_yres/2)
} else if (bpp > 1) {
if (xres > sttt_xres || yres > st_yres / 2)
return -EINVAL;
par->hw.tt.mode=TT_SHIFTER_STMID;
xres=sttt_xres;
yres=st_yres/2;
bpp=2;
}
else if (var->xres > sttt_xres || var->yres > st_yres) {
par->hw.tt.mode = TT_SHIFTER_STMID;
xres = sttt_xres;
yres = st_yres / 2;
bpp = 2;
} else if (var->xres > sttt_xres || var->yres > st_yres) {
return -EINVAL;
}
else {
par->hw.tt.mode=TT_SHIFTER_STHIGH;
xres=sttt_xres;
yres=st_yres;
bpp=1;
} else {
par->hw.tt.mode = TT_SHIFTER_STHIGH;
xres = sttt_xres;
yres = st_yres;
bpp = 1;
}
}
if (yres_virtual <= 0)
......@@ -537,10 +679,10 @@ static int tt_decode_var( struct fb_var_screeninfo *var,
else if (yres_virtual < yres)
yres_virtual = yres;
if (var->sync & FB_SYNC_EXT)
par->hw.tt.sync=0;
par->hw.tt.sync = 0;
else
par->hw.tt.sync=1;
linelen=xres*bpp/8;
par->hw.tt.sync = 1;
linelen = xres * bpp / 8;
if (yres_virtual * linelen > screen_len && screen_len)
return -EINVAL;
if (yres * linelen > screen_len && screen_len)
......@@ -552,154 +694,123 @@ static int tt_decode_var( struct fb_var_screeninfo *var,
return 0;
}
static int tt_encode_var( struct fb_var_screeninfo *var,
struct atafb_par *par )
static int tt_encode_var(struct fb_var_screeninfo *var, struct atafb_par *par)
{
int linelen;
memset(var, 0, sizeof(struct fb_var_screeninfo));
var->red.offset=0;
var->red.length=4;
var->red.msb_right=0;
var->grayscale=0;
var->pixclock=31041;
var->left_margin=120; /* these may be incorrect */
var->right_margin=100;
var->upper_margin=8;
var->lower_margin=16;
var->hsync_len=140;
var->vsync_len=30;
var->height=-1;
var->width=-1;
var->red.offset = 0;
var->red.length = 4;
var->red.msb_right = 0;
var->grayscale = 0;
var->pixclock = 31041;
var->left_margin = 120; /* these may be incorrect */
var->right_margin = 100;
var->upper_margin = 8;
var->lower_margin = 16;
var->hsync_len = 140;
var->vsync_len = 30;
var->height = -1;
var->width = -1;
if (par->hw.tt.sync & 1)
var->sync=0;
var->sync = 0;
else
var->sync=FB_SYNC_EXT;
var->sync = FB_SYNC_EXT;
switch (par->hw.tt.mode & TT_SHIFTER_MODEMASK) {
case TT_SHIFTER_STLOW:
var->xres=sttt_xres/2;
var->xres_virtual=sttt_xres_virtual/2;
var->yres=st_yres/2;
var->bits_per_pixel=4;
var->xres = sttt_xres / 2;
var->xres_virtual = sttt_xres_virtual / 2;
var->yres = st_yres / 2;
var->bits_per_pixel = 4;
break;
case TT_SHIFTER_STMID:
var->xres=sttt_xres;
var->xres_virtual=sttt_xres_virtual;
var->yres=st_yres/2;
var->bits_per_pixel=2;
var->xres = sttt_xres;
var->xres_virtual = sttt_xres_virtual;
var->yres = st_yres / 2;
var->bits_per_pixel = 2;
break;
case TT_SHIFTER_STHIGH:
var->xres=sttt_xres;
var->xres_virtual=sttt_xres_virtual;
var->yres=st_yres;
var->bits_per_pixel=1;
var->xres = sttt_xres;
var->xres_virtual = sttt_xres_virtual;
var->yres = st_yres;
var->bits_per_pixel = 1;
break;
case TT_SHIFTER_TTLOW:
var->xres=sttt_xres/2;
var->xres_virtual=sttt_xres_virtual/2;
var->yres=tt_yres;
var->bits_per_pixel=8;
var->xres = sttt_xres / 2;
var->xres_virtual = sttt_xres_virtual / 2;
var->yres = tt_yres;
var->bits_per_pixel = 8;
break;
case TT_SHIFTER_TTMID:
var->xres=sttt_xres;
var->xres_virtual=sttt_xres_virtual;
var->yres=tt_yres;
var->bits_per_pixel=4;
var->xres = sttt_xres;
var->xres_virtual = sttt_xres_virtual;
var->yres = tt_yres;
var->bits_per_pixel = 4;
break;
case TT_SHIFTER_TTHIGH:
var->red.length=0;
var->xres=sttt_xres*2;
var->xres_virtual=sttt_xres_virtual*2;
var->yres=tt_yres*2;
var->bits_per_pixel=1;
var->red.length = 0;
var->xres = sttt_xres * 2;
var->xres_virtual = sttt_xres_virtual * 2;
var->yres = tt_yres * 2;
var->bits_per_pixel = 1;
break;
}
var->blue=var->green=var->red;
var->transp.offset=0;
var->transp.length=0;
var->transp.msb_right=0;
linelen=var->xres_virtual * var->bits_per_pixel / 8;
if (! use_hwscroll)
var->yres_virtual=var->yres;
}
var->blue = var->green = var->red;
var->transp.offset = 0;
var->transp.length = 0;
var->transp.msb_right = 0;
linelen = var->xres_virtual * var->bits_per_pixel / 8;
if (!use_hwscroll)
var->yres_virtual = var->yres;
else if (screen_len) {
if (par->yres_virtual)
var->yres_virtual = par->yres_virtual;
else
/* yres_virtual==0 means use maximum */
/* yres_virtual == 0 means use maximum */
var->yres_virtual = screen_len / linelen;
} else {
if (hwscroll < 0)
var->yres_virtual = 2 * var->yres;
else
var->yres_virtual=var->yres+hwscroll * 16;
var->yres_virtual = var->yres + hwscroll * 16;
}
var->xoffset=0;
var->xoffset = 0;
if (screen_base)
var->yoffset=(par->screen_base - screen_base)/linelen;
var->yoffset = (par->screen_base - screen_base) / linelen;
else
var->yoffset=0;
var->nonstd=0;
var->activate=0;
var->vmode=FB_VMODE_NONINTERLACED;
var->yoffset = 0;
var->nonstd = 0;
var->activate = 0;
var->vmode = FB_VMODE_NONINTERLACED;
return 0;
}
static void tt_get_par( struct atafb_par *par )
static void tt_get_par(struct atafb_par *par)
{
unsigned long addr;
par->hw.tt.mode=shifter_tt.tt_shiftmode;
par->hw.tt.sync=shifter.syncmode;
par->hw.tt.mode = shifter_tt.tt_shiftmode;
par->hw.tt.sync = shifter.syncmode;
addr = ((shifter.bas_hi & 0xff) << 16) |
((shifter.bas_md & 0xff) << 8) |
((shifter.bas_lo & 0xff));
par->screen_base = phys_to_virt(addr);
}
static void tt_set_par( struct atafb_par *par )
static void tt_set_par(struct atafb_par *par)
{
shifter_tt.tt_shiftmode=par->hw.tt.mode;
shifter.syncmode=par->hw.tt.sync;
shifter_tt.tt_shiftmode = par->hw.tt.mode;
shifter.syncmode = par->hw.tt.sync;
/* only set screen_base if really necessary */
if (current_par.screen_base != par->screen_base)
fbhw->set_screen_base(par->screen_base);
}
static int tt_getcolreg(unsigned regno, unsigned *red,
unsigned *green, unsigned *blue,
unsigned *transp, struct fb_info *info)
{
int t, col;
if ((shifter_tt.tt_shiftmode & TT_SHIFTER_MODEMASK) == TT_SHIFTER_STHIGH)
regno += 254;
if (regno > 255)
return 1;
t = tt_palette[regno];
col = t & 15;
col |= col << 4;
col |= col << 8;
*blue = col;
col = (t >> 4) & 15;
col |= col << 4;
col |= col << 8;
*green = col;
col = (t >> 8) & 15;
col |= col << 4;
col |= col << 8;
*red = col;
*transp = 0;
return 0;
}
static int tt_setcolreg(unsigned regno, unsigned red,
unsigned green, unsigned blue,
unsigned transp, struct fb_info *info)
static int tt_setcolreg(unsigned int regno, unsigned int red,
unsigned int green, unsigned int blue,
unsigned int transp, struct fb_info *info)
{
if ((shifter_tt.tt_shiftmode & TT_SHIFTER_MODEMASK) == TT_SHIFTER_STHIGH)
regno += 254;
......@@ -708,15 +819,14 @@ static int tt_setcolreg(unsigned regno, unsigned red,
tt_palette[regno] = (((red >> 12) << 8) | ((green >> 12) << 4) |
(blue >> 12));
if ((shifter_tt.tt_shiftmode & TT_SHIFTER_MODEMASK) ==
TT_SHIFTER_STHIGH && regno == 254)
TT_SHIFTER_STHIGH && regno == 254)
tt_palette[0] = 0;
return 0;
}
static int tt_detect( void )
{ struct atafb_par par;
static int tt_detect(void)
{
struct atafb_par par;
/* Determine the connected monitor: The DMA sound must be
* disabled before reading the MFP GPIP, because the Sound
......@@ -726,9 +836,9 @@ static int tt_detect( void )
* announced that the Eagle is TT compatible, but only the PCM is
* missing...
*/
if (ATARIHW_PRESENT(PCM_8BIT)) {
if (ATARIHW_PRESENT(PCM_8BIT)) {
tt_dmasnd.ctrl = DMASND_CTRL_OFF;
udelay(20); /* wait a while for things to settle down */
udelay(20); /* wait a while for things to settle down */
}
mono_moni = (mfp.par_dt_reg & 0x80) == 0;
......@@ -755,19 +865,24 @@ static struct pixel_clock {
unsigned long f; /* f/[Hz] */
unsigned long t; /* t/[ps] (=1/f) */
int right, hsync, left; /* standard timing in clock cycles, not pixel */
/* hsync initialized in falcon_detect() */
/* hsync initialized in falcon_detect() */
int sync_mask; /* or-mask for hw.falcon.sync to set this clock */
int control_mask; /* ditto, for hw.falcon.vid_control */
}
f25 = {25175000, 39721, 18, 0, 42, 0x0, VCO_CLOCK25},
f32 = {32000000, 31250, 18, 0, 42, 0x0, 0},
fext = { 0, 0, 18, 0, 42, 0x1, 0};
} f25 = {
25175000, 39721, 18, 0, 42, 0x0, VCO_CLOCK25
}, f32 = {
32000000, 31250, 18, 0, 42, 0x0, 0
}, fext = {
0, 0, 18, 0, 42, 0x1, 0
};
/* VIDEL-prescale values [mon_type][pixel_length from VCO] */
static int vdl_prescale[4][3] = {{4,2,1}, {4,2,1}, {4,2,2}, {4,2,1}};
static int vdl_prescale[4][3] = {
{ 4,2,1 }, { 4,2,1 }, { 4,2,2 }, { 4,2,1 }
};
/* Default hsync timing [mon_type] in picoseconds */
static long h_syncs[4] = {3000000, 4875000, 4000000, 4875000};
static long h_syncs[4] = { 3000000, 4875000, 4000000, 4875000 };
#ifdef FBCON_HAS_CFB16
static u16 fbcon_cfb16_cmap[16];
......@@ -775,12 +890,12 @@ static u16 fbcon_cfb16_cmap[16];
static inline int hxx_prescale(struct falcon_hw *hw)
{
return hw->ste_mode ? 16 :
vdl_prescale[mon_type][hw->vid_mode >> 2 & 0x3];
return hw->ste_mode ? 16
: vdl_prescale[mon_type][hw->vid_mode >> 2 & 0x3];
}
static int falcon_encode_fix( struct fb_fix_screeninfo *fix,
struct atafb_par *par )
static int falcon_encode_fix(struct fb_fix_screeninfo *fix,
struct atafb_par *par)
{
strcpy(fix->id, "Atari Builtin");
fix->smem_start = (unsigned long)real_screen_base;
......@@ -796,8 +911,7 @@ static int falcon_encode_fix( struct fb_fix_screeninfo *fix,
fix->type_aux = 0;
/* no smooth scrolling with longword aligned video mem */
fix->xpanstep = 32;
}
else if (par->hw.falcon.f_shift & 0x100) {
} else if (par->hw.falcon.f_shift & 0x100) {
fix->type = FB_TYPE_PACKED_PIXELS;
fix->type_aux = 0;
/* Is this ok or should it be DIRECTCOLOR? */
......@@ -809,9 +923,8 @@ static int falcon_encode_fix( struct fb_fix_screeninfo *fix,
return 0;
}
static int falcon_decode_var( struct fb_var_screeninfo *var,
struct atafb_par *par )
static int falcon_decode_var(struct fb_var_screeninfo *var,
struct atafb_par *par)
{
int bpp = var->bits_per_pixel;
int xres = var->xres;
......@@ -823,17 +936,19 @@ static int falcon_decode_var( struct fb_var_screeninfo *var,
int linelen;
int interlace = 0, doubleline = 0;
struct pixel_clock *pclock;
int plen; /* width of pixel in clock cycles */
int plen; /* width of pixel in clock cycles */
int xstretch;
int prescale;
int longoffset = 0;
int hfreq, vfreq;
int hdb_off, hde_off, base_off;
int gstart, gend1, gend2, align;
/*
Get the video params out of 'var'. If a value doesn't fit, round
it up, if it's too big, return EINVAL.
Round up in the following order: bits_per_pixel, xres, yres,
xres_virtual, yres_virtual, xoffset, yoffset, grayscale, bitfields,
Round up in the following order: bits_per_pixel, xres, yres,
xres_virtual, yres_virtual, xoffset, yoffset, grayscale, bitfields,
horizontal timing, vertical timing.
There is a maximum of screen resolution determined by pixelclock
......@@ -843,11 +958,11 @@ static int falcon_decode_var( struct fb_var_screeninfo *var,
Frequency range for multisync monitors is given via command line.
For TV and SM124 both frequencies are fixed.
X % 16 == 0 to fit 8x?? font (except 1 bitplane modes must use X%32==0)
X % 16 == 0 to fit 8x?? font (except 1 bitplane modes must use X%32 == 0)
Y % 16 == 0 to fit 8x16 font
Y % 8 == 0 if Y<400
Currently interlace and doubleline mode in var are ignored.
Currently interlace and doubleline mode in var are ignored.
On SM124 and TV only the standard resolutions can be used.
*/
......@@ -855,43 +970,38 @@ static int falcon_decode_var( struct fb_var_screeninfo *var,
if (!xres || !yres || !bpp)
return -EINVAL;
if (mon_type == F_MON_SM && bpp != 1) {
if (mon_type == F_MON_SM && bpp != 1)
return -EINVAL;
}
else if (bpp <= 1) {
if (bpp <= 1) {
bpp = 1;
par->hw.falcon.f_shift = 0x400;
par->hw.falcon.st_shift = 0x200;
}
else if (bpp <= 2) {
} else if (bpp <= 2) {
bpp = 2;
par->hw.falcon.f_shift = 0x000;
par->hw.falcon.st_shift = 0x100;
}
else if (bpp <= 4) {
} else if (bpp <= 4) {
bpp = 4;
par->hw.falcon.f_shift = 0x000;
par->hw.falcon.st_shift = 0x000;
}
else if (bpp <= 8) {
} else if (bpp <= 8) {
bpp = 8;
par->hw.falcon.f_shift = 0x010;
}
else if (bpp <= 16) {
bpp = 16; /* packed pixel mode */
par->hw.falcon.f_shift = 0x100; /* hicolor, no overlay */
}
else
} else if (bpp <= 16) {
bpp = 16; /* packed pixel mode */
par->hw.falcon.f_shift = 0x100; /* hicolor, no overlay */
} else
return -EINVAL;
par->hw.falcon.bpp = bpp;
if (mon_type == F_MON_SM || DontCalcRes) {
/* Skip all calculations. VGA/TV/SC1224 only supported. */
struct fb_var_screeninfo *myvar = &atafb_predefined[0];
if (bpp > myvar->bits_per_pixel ||
var->xres > myvar->xres ||
var->yres > myvar->yres)
var->xres > myvar->xres ||
var->yres > myvar->yres)
return -EINVAL;
fbhw->get_par(par); /* Current par will be new par */
goto set_screen_base; /* Don't forget this */
......@@ -910,8 +1020,8 @@ static int falcon_decode_var( struct fb_var_screeninfo *var,
yres = 400;
/* 2 planes must use STE compatibility mode */
par->hw.falcon.ste_mode = bpp==2;
par->hw.falcon.mono = bpp==1;
par->hw.falcon.ste_mode = bpp == 2;
par->hw.falcon.mono = bpp == 1;
/* Total and visible scanline length must be a multiple of one longword,
* this and the console fontwidth yields the alignment for xres and
......@@ -967,8 +1077,7 @@ static int falcon_decode_var( struct fb_var_screeninfo *var,
left_margin = hsync_len = 128 / plen;
right_margin = 0;
/* TODO set all margins */
}
else
} else
#endif
if (mon_type == F_MON_SC || mon_type == F_MON_TV) {
plen = 2 * xstretch;
......@@ -1002,26 +1111,24 @@ static int falcon_decode_var( struct fb_var_screeninfo *var,
vsync_len *= 2;
}
}
}
else
{ /* F_MON_VGA */
} else { /* F_MON_VGA */
if (bpp == 16)
xstretch = 2; /* Double pixel width only for hicolor */
xstretch = 2; /* Double pixel width only for hicolor */
/* Default values are used for vert./hor. timing if no pixelclock given. */
if (var->pixclock == 0) {
int linesize;
/* Choose master pixelclock depending on hor. timing */
plen = 1 * xstretch;
if ((plen * xres + f25.right+f25.hsync+f25.left) *
if ((plen * xres + f25.right + f25.hsync + f25.left) *
fb_info.monspecs.hfmin < f25.f)
pclock = &f25;
else if ((plen * xres + f32.right+f32.hsync+f32.left) *
fb_info.monspecs.hfmin < f32.f)
else if ((plen * xres + f32.right + f32.hsync +
f32.left) * fb_info.monspecs.hfmin < f32.f)
pclock = &f32;
else if ((plen * xres + fext.right+fext.hsync+fext.left) *
fb_info.monspecs.hfmin < fext.f
&& fext.f)
else if ((plen * xres + fext.right + fext.hsync +
fext.left) * fb_info.monspecs.hfmin < fext.f &&
fext.f)
pclock = &fext;
else
return -EINVAL;
......@@ -1033,22 +1140,24 @@ static int falcon_decode_var( struct fb_var_screeninfo *var,
upper_margin = 31;
lower_margin = 11;
vsync_len = 3;
}
else {
} else {
/* Choose largest pixelclock <= wanted clock */
int i;
unsigned long pcl = ULONG_MAX;
pclock = 0;
for (i=1; i <= 4; i *= 2) {
if (f25.t*i >= var->pixclock && f25.t*i < pcl) {
for (i = 1; i <= 4; i *= 2) {
if (f25.t * i >= var->pixclock &&
f25.t * i < pcl) {
pcl = f25.t * i;
pclock = &f25;
}
if (f32.t*i >= var->pixclock && f32.t*i < pcl) {
if (f32.t * i >= var->pixclock &&
f32.t * i < pcl) {
pcl = f32.t * i;
pclock = &f32;
}
if (fext.t && fext.t*i >= var->pixclock && fext.t*i < pcl) {
if (fext.t && fext.t * i >= var->pixclock &&
fext.t * i < pcl) {
pcl = fext.t * i;
pclock = &fext;
}
......@@ -1070,8 +1179,7 @@ static int falcon_decode_var( struct fb_var_screeninfo *var,
upper_margin = (upper_margin + 1) / 2;
lower_margin = (lower_margin + 1) / 2;
vsync_len = (vsync_len + 1) / 2;
}
else if (var->vmode & FB_VMODE_DOUBLE) {
} else if (var->vmode & FB_VMODE_DOUBLE) {
/* External unit is [double lines per frame] */
upper_margin *= 2;
lower_margin *= 2;
......@@ -1079,7 +1187,7 @@ static int falcon_decode_var( struct fb_var_screeninfo *var,
}
}
if (pclock == &fext)
longoffset = 1; /* VIDEL doesn't synchronize on short offset */
longoffset = 1; /* VIDEL doesn't synchronize on short offset */
}
/* Is video bus bandwidth (32MB/s) too low for this resolution? */
/* this is definitely wrong if bus clock != 32MHz */
......@@ -1098,7 +1206,7 @@ static int falcon_decode_var( struct fb_var_screeninfo *var,
* between interlace and non-interlace without messing around
* with these.
*/
again:
again:
/* Set base_offset 128 and video bus width */
par->hw.falcon.vid_control = mon_type | f030_bus_width;
if (!longoffset)
......@@ -1112,37 +1220,34 @@ static int falcon_decode_var( struct fb_var_screeninfo *var,
/* External or internal clock */
par->hw.falcon.sync = pclock->sync_mask | 0x2;
/* Pixellength and prescale */
par->hw.falcon.vid_mode = (2/plen) << 2;
par->hw.falcon.vid_mode = (2 / plen) << 2;
if (doubleline)
par->hw.falcon.vid_mode |= VMO_DOUBLE;
if (interlace)
par->hw.falcon.vid_mode |= VMO_INTER;
/*********************
Horizontal timing: unit = [master clock cycles]
unit of hxx-registers: [master clock cycles * prescale]
Hxx-registers are 9 bit wide
1 line = ((hht + 2) * 2 * prescale) clock cycles
graphic output = hdb & 0x200 ?
((hht+2)*2 - hdb + hde) * prescale - hdboff + hdeoff:
( hht + 2 - hdb + hde) * prescale - hdboff + hdeoff
(this must be a multiple of plen*128/bpp, on VGA pixels
to the right may be cut off with a bigger right margin)
start of graphics relative to start of 1st halfline = hdb & 0x200 ?
(hdb - hht - 2) * prescale + hdboff :
hdb * prescale + hdboff
end of graphics relative to start of 1st halfline =
(hde + hht + 2) * prescale + hdeoff
*********************/
* Horizontal timing: unit = [master clock cycles]
* unit of hxx-registers: [master clock cycles * prescale]
* Hxx-registers are 9 bit wide
*
* 1 line = ((hht + 2) * 2 * prescale) clock cycles
*
* graphic output = hdb & 0x200 ?
* ((hht + 2) * 2 - hdb + hde) * prescale - hdboff + hdeoff:
* (hht + 2 - hdb + hde) * prescale - hdboff + hdeoff
* (this must be a multiple of plen*128/bpp, on VGA pixels
* to the right may be cut off with a bigger right margin)
*
* start of graphics relative to start of 1st halfline = hdb & 0x200 ?
* (hdb - hht - 2) * prescale + hdboff :
* hdb * prescale + hdboff
*
* end of graphics relative to start of 1st halfline =
* (hde + hht + 2) * prescale + hdeoff
*********************/
/* Calculate VIDEL registers */
{
int hdb_off, hde_off, base_off;
int gstart, gend1, gend2, align;
{
prescale = hxx_prescale(&par->hw.falcon);
base_off = par->hw.falcon.vid_control & VCO_SHORTOFFS ? 64 : 128;
......@@ -1154,8 +1259,7 @@ static int falcon_decode_var( struct fb_var_screeninfo *var,
align = 1;
hde_off = 0;
hdb_off = (base_off + 16 * plen) + prescale;
}
else {
} else {
align = 128 / bpp;
hde_off = ((128 / bpp + 2) * plen);
if (par->hw.falcon.ste_mode)
......@@ -1164,23 +1268,24 @@ static int falcon_decode_var( struct fb_var_screeninfo *var,
hdb_off = (base_off + (128 / bpp + 18) * plen) + prescale;
}
gstart = (prescale/2 + plen * left_margin) / prescale;
gstart = (prescale / 2 + plen * left_margin) / prescale;
/* gend1 is for hde (gend-gstart multiple of align), shifter's xres */
gend1 = gstart + ((xres + align-1) / align)*align * plen / prescale;
gend1 = gstart + ((xres + align - 1) / align) * align * plen / prescale;
/* gend2 is for hbb, visible xres (rest to gend1 is cut off by hblank) */
gend2 = gstart + xres * plen / prescale;
par->HHT = plen * (left_margin + xres + right_margin) /
(2 * prescale) - 2;
/* par->HHT = (gend2 + plen * right_margin / prescale) / 2 - 2;*/
par->HDB = gstart - hdb_off/prescale;
par->HDB = gstart - hdb_off / prescale;
par->HBE = gstart;
if (par->HDB < 0) par->HDB += par->HHT + 2 + 0x200;
par->HDE = gend1 - par->HHT - 2 - hde_off/prescale;
if (par->HDB < 0)
par->HDB += par->HHT + 2 + 0x200;
par->HDE = gend1 - par->HHT - 2 - hde_off / prescale;
par->HBB = gend2 - par->HHT - 2;
#if 0
/* One more Videl constraint: data fetch of two lines must not overlap */
if ((par->HDB & 0x200) && (par->HDB & ~0x200) - par->HDE <= 5) {
if ((par->HDB & 0x200) && (par->HDB & ~0x200) - par->HDE <= 5) {
/* if this happens increase margins, decrease hfreq. */
}
#endif
......@@ -1189,11 +1294,11 @@ static int falcon_decode_var( struct fb_var_screeninfo *var,
par->HSS = par->HHT + 2 - plen * hsync_len / prescale;
if (par->HSS < par->HBB)
par->HSS = par->HBB;
}
}
/* check hor. frequency */
hfreq = pclock->f / ((par->HHT+2)*prescale*2);
if (hfreq > fb_info.monspecs.hfmax && mon_type!=F_MON_VGA) {
hfreq = pclock->f / ((par->HHT + 2) * prescale * 2);
if (hfreq > fb_info.monspecs.hfmax && mon_type != F_MON_VGA) {
/* ++guenther: ^^^^^^^^^^^^^^^^^^^ can't remember why I did this */
/* Too high -> enlarge margin */
left_margin += 1;
......@@ -1213,12 +1318,14 @@ static int falcon_decode_var( struct fb_var_screeninfo *var,
par->VBE = (upper_margin * 2 + 1); /* must begin on odd halfline */
par->VDB = par->VBE;
par->VDE = yres;
if (!interlace) par->VDE <<= 1;
if (doubleline) par->VDE <<= 1; /* VDE now half lines per (half-)frame */
if (!interlace)
par->VDE <<= 1;
if (doubleline)
par->VDE <<= 1; /* VDE now half lines per (half-)frame */
par->VDE += par->VDB;
par->VBB = par->VDE;
par->VFT = par->VBB + (lower_margin * 2 - 1) - 1;
par->VSS = par->VFT+1 - (vsync_len * 2 - 1);
par->VSS = par->VFT + 1 - (vsync_len * 2 - 1);
/* vbb,vss,vft must be even in interlace mode */
if (interlace) {
par->VBB++;
......@@ -1229,55 +1336,53 @@ static int falcon_decode_var( struct fb_var_screeninfo *var,
/* V-frequency check, hope I didn't create any loop here. */
/* Interlace and doubleline are mutually exclusive. */
vfreq = (hfreq * 2) / (par->VFT + 1);
if (vfreq > fb_info.monspecs.vfmax && !doubleline && !interlace) {
if (vfreq > fb_info.monspecs.vfmax && !doubleline && !interlace) {
/* Too high -> try again with doubleline */
doubleline = 1;
goto again;
}
else if (vfreq < fb_info.monspecs.vfmin && !interlace && !doubleline) {
} else if (vfreq < fb_info.monspecs.vfmin && !interlace && !doubleline) {
/* Too low -> try again with interlace */
interlace = 1;
goto again;
}
else if (vfreq < fb_info.monspecs.vfmin && doubleline) {
} else if (vfreq < fb_info.monspecs.vfmin && doubleline) {
/* Doubleline too low -> clear doubleline and enlarge margins */
int lines;
doubleline = 0;
for (lines=0;
(hfreq*2)/(par->VFT+1+4*lines-2*yres)>fb_info.monspecs.vfmax;
for (lines = 0;
(hfreq * 2) / (par->VFT + 1 + 4 * lines - 2 * yres) >
fb_info.monspecs.vfmax;
lines++)
;
upper_margin += lines;
lower_margin += lines;
goto again;
}
else if (vfreq > fb_info.monspecs.vfmax && doubleline) {
} else if (vfreq > fb_info.monspecs.vfmax && doubleline) {
/* Doubleline too high -> enlarge margins */
int lines;
for (lines=0;
(hfreq*2)/(par->VFT+1+4*lines)>fb_info.monspecs.vfmax;
lines+=2)
for (lines = 0;
(hfreq * 2) / (par->VFT + 1 + 4 * lines) >
fb_info.monspecs.vfmax;
lines += 2)
;
upper_margin += lines;
lower_margin += lines;
goto again;
}
else if (vfreq > fb_info.monspecs.vfmax && interlace) {
} else if (vfreq > fb_info.monspecs.vfmax && interlace) {
/* Interlace, too high -> enlarge margins */
int lines;
for (lines=0;
(hfreq*2)/(par->VFT+1+4*lines)>fb_info.monspecs.vfmax;
for (lines = 0;
(hfreq * 2) / (par->VFT + 1 + 4 * lines) >
fb_info.monspecs.vfmax;
lines++)
;
upper_margin += lines;
lower_margin += lines;
goto again;
}
else if (vfreq < fb_info.monspecs.vfmin ||
vfreq > fb_info.monspecs.vfmax)
} else if (vfreq < fb_info.monspecs.vfmin ||
vfreq > fb_info.monspecs.vfmax)
return -EINVAL;
set_screen_base:
set_screen_base:
linelen = xres_virtual * bpp / 8;
if (yres_virtual * linelen > screen_len && screen_len)
return -EINVAL;
......@@ -1289,11 +1394,20 @@ static int falcon_decode_var( struct fb_var_screeninfo *var,
par->screen_base = screen_base + var->yoffset * linelen;
par->hw.falcon.xoffset = 0;
// FIXME!!! sort of works, no crash
//par->next_line = linelen;
//par->next_plane = yres_virtual * linelen;
par->next_line = linelen;
par->next_plane = 2;
// crashes
//par->next_plane = linelen;
//par->next_line = yres_virtual * linelen;
return 0;
}
static int falcon_encode_var( struct fb_var_screeninfo *var,
struct atafb_par *par )
static int falcon_encode_var(struct fb_var_screeninfo *var,
struct atafb_par *par)
{
/* !!! only for VGA !!! */
int linelen;
......@@ -1306,10 +1420,10 @@ static int falcon_encode_var( struct fb_var_screeninfo *var,
var->pixclock = hw->sync & 0x1 ? fext.t :
hw->vid_control & VCO_CLOCK25 ? f25.t : f32.t;
var->height=-1;
var->width=-1;
var->height = -1;
var->width = -1;
var->sync=0;
var->sync = 0;
if (hw->vid_control & VCO_HSYPOS)
var->sync |= FB_SYNC_HOR_HIGH_ACT;
if (hw->vid_control & VCO_VSYPOS)
......@@ -1320,7 +1434,7 @@ static int falcon_encode_var( struct fb_var_screeninfo *var,
var->vmode |= FB_VMODE_INTERLACED;
if (hw->vid_mode & VMO_DOUBLE)
var->vmode |= FB_VMODE_DOUBLE;
/* visible y resolution:
* Graphics display starts at line VDB and ends at line
* VDE. If interlace mode off unit of VC-registers is
......@@ -1332,14 +1446,15 @@ static int falcon_encode_var( struct fb_var_screeninfo *var,
if (var->vmode & FB_VMODE_DOUBLE)
var->yres >>= 1;
/* to get bpp, we must examine f_shift and st_shift.
/*
* to get bpp, we must examine f_shift and st_shift.
* f_shift is valid if any of bits no. 10, 8 or 4
* is set. Priority in f_shift is: 10 ">" 8 ">" 4, i.e.
* if bit 10 set then bit 8 and bit 4 don't care...
* If all these bits are 0 get display depth from st_shift
* (as for ST and STE)
*/
if (hw->f_shift & 0x400) /* 2 colors */
if (hw->f_shift & 0x400) /* 2 colors */
var->bits_per_pixel = 1;
else if (hw->f_shift & 0x100) /* hicolor */
var->bits_per_pixel = 16;
......@@ -1349,7 +1464,7 @@ static int falcon_encode_var( struct fb_var_screeninfo *var,
var->bits_per_pixel = 4;
else if (hw->st_shift == 0x100)
var->bits_per_pixel = 2;
else /* if (hw->st_shift == 0x200) */
else /* if (hw->st_shift == 0x200) */
var->bits_per_pixel = 1;
var->xres = hw->line_width * 16 / var->bits_per_pixel;
......@@ -1358,42 +1473,42 @@ static int falcon_encode_var( struct fb_var_screeninfo *var,
var->xres_virtual += 16;
if (var->bits_per_pixel == 16) {
var->red.offset=11;
var->red.length=5;
var->red.msb_right=0;
var->green.offset=5;
var->green.length=6;
var->green.msb_right=0;
var->blue.offset=0;
var->blue.length=5;
var->blue.msb_right=0;
}
else {
var->red.offset=0;
var->red.offset = 11;
var->red.length = 5;
var->red.msb_right = 0;
var->green.offset = 5;
var->green.length = 6;
var->green.msb_right = 0;
var->blue.offset = 0;
var->blue.length = 5;
var->blue.msb_right = 0;
} else {
var->red.offset = 0;
var->red.length = hw->ste_mode ? 4 : 6;
var->red.msb_right=0;
var->grayscale=0;
var->blue=var->green=var->red;
if (var->red.length > var->bits_per_pixel)
var->red.length = var->bits_per_pixel;
var->red.msb_right = 0;
var->grayscale = 0;
var->blue = var->green = var->red;
}
var->transp.offset=0;
var->transp.length=0;
var->transp.msb_right=0;
var->transp.offset = 0;
var->transp.length = 0;
var->transp.msb_right = 0;
linelen = var->xres_virtual * var->bits_per_pixel / 8;
if (screen_len) {
if (par->yres_virtual)
var->yres_virtual = par->yres_virtual;
else
/* yres_virtual==0 means use maximum */
/* yres_virtual == 0 means use maximum */
var->yres_virtual = screen_len / linelen;
}
else {
} else {
if (hwscroll < 0)
var->yres_virtual = 2 * var->yres;
else
var->yres_virtual=var->yres+hwscroll * 16;
var->yres_virtual = var->yres + hwscroll * 16;
}
var->xoffset=0; /* TODO change this */
var->xoffset = 0; /* TODO change this */
/* hdX-offsets */
prescale = hxx_prescale(hw);
......@@ -1402,8 +1517,7 @@ static int falcon_encode_var( struct fb_var_screeninfo *var,
if (hw->f_shift & 0x100) {
hde_off = 0;
hdb_off = (base_off + 16 * plen) + prescale;
}
else {
} else {
hde_off = ((128 / var->bits_per_pixel + 2) * plen);
if (hw->ste_mode)
hdb_off = (64 + base_off + (128 / var->bits_per_pixel + 2) * plen)
......@@ -1415,8 +1529,8 @@ static int falcon_encode_var( struct fb_var_screeninfo *var,
/* Right margin includes hsync */
var->left_margin = hdb_off + prescale * ((hw->hdb & 0x1ff) -
(hw->hdb & 0x200 ? 2+hw->hht : 0));
if (hw->ste_mode || mon_type!=F_MON_VGA)
(hw->hdb & 0x200 ? 2 + hw->hht : 0));
if (hw->ste_mode || mon_type != F_MON_VGA)
var->right_margin = prescale * (hw->hht + 2 - hw->hde) - hde_off;
else
/* can't use this in ste_mode, because hbb is +1 off */
......@@ -1424,15 +1538,14 @@ static int falcon_encode_var( struct fb_var_screeninfo *var,
var->hsync_len = prescale * (hw->hht + 2 - hw->hss);
/* Lower margin includes vsync */
var->upper_margin = hw->vdb / 2 ; /* round down to full lines */
var->lower_margin = (hw->vft+1 - hw->vde + 1) / 2; /* round up */
var->vsync_len = (hw->vft+1 - hw->vss + 1) / 2; /* round up */
var->upper_margin = hw->vdb / 2; /* round down to full lines */
var->lower_margin = (hw->vft + 1 - hw->vde + 1) / 2; /* round up */
var->vsync_len = (hw->vft + 1 - hw->vss + 1) / 2; /* round up */
if (var->vmode & FB_VMODE_INTERLACED) {
var->upper_margin *= 2;
var->lower_margin *= 2;
var->vsync_len *= 2;
}
else if (var->vmode & FB_VMODE_DOUBLE) {
} else if (var->vmode & FB_VMODE_DOUBLE) {
var->upper_margin = (var->upper_margin + 1) / 2;
var->lower_margin = (var->lower_margin + 1) / 2;
var->vsync_len = (var->vsync_len + 1) / 2;
......@@ -1447,20 +1560,19 @@ static int falcon_encode_var( struct fb_var_screeninfo *var,
var->lower_margin -= var->vsync_len;
if (screen_base)
var->yoffset=(par->screen_base - screen_base)/linelen;
var->yoffset = (par->screen_base - screen_base) / linelen;
else
var->yoffset=0;
var->nonstd=0; /* what is this for? */
var->activate=0;
var->yoffset = 0;
var->nonstd = 0; /* what is this for? */
var->activate = 0;
return 0;
}
static int f_change_mode = 0;
static int f_change_mode;
static struct falcon_hw f_new_mode;
static int f_pan_display = 0;
static int f_pan_display;
static void falcon_get_par( struct atafb_par *par )
static void falcon_get_par(struct atafb_par *par)
{
unsigned long addr;
struct falcon_hw *hw = &par->hw.falcon;
......@@ -1492,12 +1604,12 @@ static void falcon_get_par( struct atafb_par *par )
par->screen_base = phys_to_virt(addr);
/* derived parameters */
hw->ste_mode = (hw->f_shift & 0x510)==0 && hw->st_shift==0x100;
hw->ste_mode = (hw->f_shift & 0x510) == 0 && hw->st_shift == 0x100;
hw->mono = (hw->f_shift & 0x400) ||
((hw->f_shift & 0x510)==0 && hw->st_shift==0x200);
((hw->f_shift & 0x510) == 0 && hw->st_shift == 0x200);
}
static void falcon_set_par( struct atafb_par *par )
static void falcon_set_par(struct atafb_par *par)
{
f_change_mode = 0;
......@@ -1519,8 +1631,7 @@ static void falcon_set_par( struct atafb_par *par )
f_change_mode = 1;
}
static irqreturn_t falcon_vbl_switcher( int irq, void *dummy )
static irqreturn_t falcon_vbl_switcher(int irq, void *dummy)
{
struct falcon_hw *hw = &f_new_mode;
......@@ -1529,11 +1640,10 @@ static irqreturn_t falcon_vbl_switcher( int irq, void *dummy )
if (hw->sync & 0x1) {
/* Enable external pixelclock. This code only for ScreenWonder */
*(volatile unsigned short*)0xffff9202 = 0xffbf;
}
else {
*(volatile unsigned short *)0xffff9202 = 0xffbf;
} else {
/* Turn off external clocks. Read sets all output bits to 1. */
*(volatile unsigned short*)0xffff9202;
*(volatile unsigned short *)0xffff9202;
}
shifter.syncmode = hw->sync;
......@@ -1550,15 +1660,14 @@ static irqreturn_t falcon_vbl_switcher( int irq, void *dummy )
videl.vde = hw->vde;
videl.vss = hw->vss;
videl.f_shift = 0; /* write enables Falcon palette, 0: 4 planes */
videl.f_shift = 0; /* write enables Falcon palette, 0: 4 planes */
if (hw->ste_mode) {
videl.st_shift = hw->st_shift; /* write enables STE palette */
}
else {
videl.st_shift = hw->st_shift; /* write enables STE palette */
} else {
/* IMPORTANT:
* set st_shift 0, so we can tell the screen-depth if f_shift==0.
* set st_shift 0, so we can tell the screen-depth if f_shift == 0.
* Writing 0 to f_shift enables 4 plane Falcon mode but
* doesn't set st_shift. st_shift!=0 (!=4planes) is impossible
* doesn't set st_shift. st_shift != 0 (!= 4planes) is impossible
* with Falcon palette.
*/
videl.st_shift = 0;
......@@ -1580,12 +1689,13 @@ static irqreturn_t falcon_vbl_switcher( int irq, void *dummy )
return IRQ_HANDLED;
}
static int falcon_pan_display( struct fb_var_screeninfo *var,
struct atafb_par *par )
static int falcon_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct atafb_par *par = (struct atafb_par *)info->par;
int xoffset;
int bpp = fb_display[fb_info.currcon].var.bits_per_pixel;
int bpp = info->var.bits_per_pixel;
if (bpp == 1)
var->xoffset = up(var->xoffset, 32);
......@@ -1596,45 +1706,24 @@ static int falcon_pan_display( struct fb_var_screeninfo *var,
var->xoffset = up(var->xoffset, 2);
}
par->hw.falcon.line_offset = bpp *
(fb_display[fb_info.currcon].var.xres_virtual - fb_display[fb_info.currcon].var.xres) / 16;
(info->var.xres_virtual - info->var.xres) / 16;
if (par->hw.falcon.xoffset)
par->hw.falcon.line_offset -= bpp;
xoffset = var->xoffset - par->hw.falcon.xoffset;
par->screen_base = screen_base +
(var->yoffset * fb_display[fb_info.currcon].var.xres_virtual + xoffset) * bpp / 8;
(var->yoffset * info->var.xres_virtual + xoffset) * bpp / 8;
if (fbhw->set_screen_base)
fbhw->set_screen_base (par->screen_base);
fbhw->set_screen_base(par->screen_base);
else
return -EINVAL; /* shouldn't happen */
return -EINVAL; /* shouldn't happen */
f_pan_display = 1;
return 0;
}
static int falcon_getcolreg( unsigned regno, unsigned *red,
unsigned *green, unsigned *blue,
unsigned *transp, struct fb_info *info )
{ unsigned long col;
if (regno > 255)
return 1;
/* This works in STE-mode (with 4bit/color) since f030_col-registers
* hold up to 6bit/color.
* Even with hicolor r/g/b=5/6/5 bit!
*/
col = f030_col[regno];
*red = (col >> 16) & 0xff00;
*green = (col >> 8) & 0xff00;
*blue = (col << 8) & 0xff00;
*transp = 0;
return 0;
}
static int falcon_setcolreg( unsigned regno, unsigned red,
unsigned green, unsigned blue,
unsigned transp, struct fb_info *info )
static int falcon_setcolreg(unsigned int regno, unsigned int red,
unsigned int green, unsigned int blue,
unsigned int transp, struct fb_info *info)
{
if (regno > 255)
return 1;
......@@ -1655,13 +1744,12 @@ static int falcon_setcolreg( unsigned regno, unsigned red,
return 0;
}
static int falcon_blank( int blank_mode )
static int falcon_blank(int blank_mode)
{
/* ++guenther: we can switch off graphics by changing VDB and VDE,
* so VIDEL doesn't hog the bus while saving.
* (this may affect usleep()).
*/
/* ++guenther: we can switch off graphics by changing VDB and VDE,
* so VIDEL doesn't hog the bus while saving.
* (this may affect usleep()).
*/
int vdb, vss, hbe, hss;
if (mon_type == F_MON_SM) /* this doesn't work on SM124 */
......@@ -1694,14 +1782,13 @@ static int falcon_blank( int blank_mode )
return 0;
}
static int falcon_detect( void )
static int falcon_detect(void)
{
struct atafb_par par;
unsigned char fhw;
/* Determine connected monitor and set monitor parameters */
fhw = *(unsigned char*)0xffff8006;
fhw = *(unsigned char *)0xffff8006;
mon_type = fhw >> 6 & 0x3;
/* bit 1 of fhw: 1=32 bit ram bus, 0=16 bit */
f030_bus_width = fhw << 6 & 0x80;
......@@ -1715,7 +1802,7 @@ static int falcon_detect( void )
case F_MON_SC:
case F_MON_TV:
/* PAL...NTSC */
fb_info.monspecs.vfmin = 49; /* not 50, since TOS defaults to 49.9x Hz */
fb_info.monspecs.vfmin = 49; /* not 50, since TOS defaults to 49.9x Hz */
fb_info.monspecs.vfmax = 60;
fb_info.monspecs.hfmin = 15620;
fb_info.monspecs.hfmax = 15755;
......@@ -1740,13 +1827,12 @@ static int falcon_detect( void )
#ifdef ATAFB_STE
static int stste_encode_fix( struct fb_fix_screeninfo *fix,
struct atafb_par *par )
static int stste_encode_fix(struct fb_fix_screeninfo *fix,
struct atafb_par *par)
{
int mode;
strcpy(fix->id,"Atari Builtin");
strcpy(fix->id, "Atari Builtin");
fix->smem_start = (unsigned long)real_screen_base;
fix->smem_len = screen_len;
fix->type = FB_TYPE_INTERLEAVED_PLANES;
......@@ -1771,43 +1857,40 @@ static int stste_encode_fix( struct fb_fix_screeninfo *fix,
return 0;
}
static int stste_decode_var( struct fb_var_screeninfo *var,
struct atafb_par *par )
static int stste_decode_var(struct fb_var_screeninfo *var,
struct atafb_par *par)
{
int xres=var->xres;
int yres=var->yres;
int bpp=var->bits_per_pixel;
int xres = var->xres;
int yres = var->yres;
int bpp = var->bits_per_pixel;
int linelen;
int yres_virtual = var->yres_virtual;
if (mono_moni) {
if (bpp > 1 || xres > sttt_xres || yres > st_yres)
return -EINVAL;
par->hw.st.mode=ST_HIGH;
xres=sttt_xres;
yres=st_yres;
bpp=1;
par->hw.st.mode = ST_HIGH;
xres = sttt_xres;
yres = st_yres;
bpp = 1;
} else {
if (bpp > 4 || xres > sttt_xres || yres > st_yres)
return -EINVAL;
if (bpp > 2) {
if (xres > sttt_xres/2 || yres > st_yres/2)
if (xres > sttt_xres / 2 || yres > st_yres / 2)
return -EINVAL;
par->hw.st.mode=ST_LOW;
xres=sttt_xres/2;
yres=st_yres/2;
bpp=4;
}
else if (bpp > 1) {
if (xres > sttt_xres || yres > st_yres/2)
par->hw.st.mode = ST_LOW;
xres = sttt_xres / 2;
yres = st_yres / 2;
bpp = 4;
} else if (bpp > 1) {
if (xres > sttt_xres || yres > st_yres / 2)
return -EINVAL;
par->hw.st.mode=ST_MID;
xres=sttt_xres;
yres=st_yres/2;
bpp=2;
}
else
par->hw.st.mode = ST_MID;
xres = sttt_xres;
yres = st_yres / 2;
bpp = 2;
} else
return -EINVAL;
}
if (yres_virtual <= 0)
......@@ -1815,10 +1898,10 @@ static int stste_decode_var( struct fb_var_screeninfo *var,
else if (yres_virtual < yres)
yres_virtual = yres;
if (var->sync & FB_SYNC_EXT)
par->hw.st.sync=(par->hw.st.sync & ~1) | 1;
par->hw.st.sync = (par->hw.st.sync & ~1) | 1;
else
par->hw.st.sync=(par->hw.st.sync & ~1);
linelen=xres*bpp/8;
par->hw.st.sync = (par->hw.st.sync & ~1);
linelen = xres * bpp / 8;
if (yres_virtual * linelen > screen_len && screen_len)
return -EINVAL;
if (yres * linelen > screen_len && screen_len)
......@@ -1826,93 +1909,91 @@ static int stste_decode_var( struct fb_var_screeninfo *var,
if (var->yoffset + yres > yres_virtual && yres_virtual)
return -EINVAL;
par->yres_virtual = yres_virtual;
par->screen_base=screen_base+ var->yoffset*linelen;
par->screen_base = screen_base + var->yoffset * linelen;
return 0;
}
static int stste_encode_var( struct fb_var_screeninfo *var,
struct atafb_par *par )
static int stste_encode_var(struct fb_var_screeninfo *var,
struct atafb_par *par)
{
int linelen;
memset(var, 0, sizeof(struct fb_var_screeninfo));
var->red.offset=0;
var->red.offset = 0;
var->red.length = ATARIHW_PRESENT(EXTD_SHIFTER) ? 4 : 3;
var->red.msb_right=0;
var->grayscale=0;
var->red.msb_right = 0;
var->grayscale = 0;
var->pixclock=31041;
var->left_margin=120; /* these are incorrect */
var->right_margin=100;
var->upper_margin=8;
var->lower_margin=16;
var->hsync_len=140;
var->vsync_len=30;
var->pixclock = 31041;
var->left_margin = 120; /* these are incorrect */
var->right_margin = 100;
var->upper_margin = 8;
var->lower_margin = 16;
var->hsync_len = 140;
var->vsync_len = 30;
var->height=-1;
var->width=-1;
var->height = -1;
var->width = -1;
if (!(par->hw.st.sync & 1))
var->sync=0;
var->sync = 0;
else
var->sync=FB_SYNC_EXT;
var->sync = FB_SYNC_EXT;
switch (par->hw.st.mode & 3) {
case ST_LOW:
var->xres=sttt_xres/2;
var->yres=st_yres/2;
var->bits_per_pixel=4;
var->xres = sttt_xres / 2;
var->yres = st_yres / 2;
var->bits_per_pixel = 4;
break;
case ST_MID:
var->xres=sttt_xres;
var->yres=st_yres/2;
var->bits_per_pixel=2;
var->xres = sttt_xres;
var->yres = st_yres / 2;
var->bits_per_pixel = 2;
break;
case ST_HIGH:
var->xres=sttt_xres;
var->yres=st_yres;
var->bits_per_pixel=1;
var->xres = sttt_xres;
var->yres = st_yres;
var->bits_per_pixel = 1;
break;
}
var->blue=var->green=var->red;
var->transp.offset=0;
var->transp.length=0;
var->transp.msb_right=0;
var->xres_virtual=sttt_xres_virtual;
linelen=var->xres_virtual * var->bits_per_pixel / 8;
ovsc_addlen=linelen*(sttt_yres_virtual - st_yres);
if (! use_hwscroll)
var->yres_virtual=var->yres;
}
var->blue = var->green = var->red;
var->transp.offset = 0;
var->transp.length = 0;
var->transp.msb_right = 0;
var->xres_virtual = sttt_xres_virtual;
linelen = var->xres_virtual * var->bits_per_pixel / 8;
ovsc_addlen = linelen * (sttt_yres_virtual - st_yres);
if (!use_hwscroll)
var->yres_virtual = var->yres;
else if (screen_len) {
if (par->yres_virtual)
var->yres_virtual = par->yres_virtual;
else
/* yres_virtual==0 means use maximum */
/* yres_virtual == 0 means use maximum */
var->yres_virtual = screen_len / linelen;
}
else {
} else {
if (hwscroll < 0)
var->yres_virtual = 2 * var->yres;
else
var->yres_virtual=var->yres+hwscroll * 16;
var->yres_virtual = var->yres + hwscroll * 16;
}
var->xoffset=0;
var->xoffset = 0;
if (screen_base)
var->yoffset=(par->screen_base - screen_base)/linelen;
var->yoffset = (par->screen_base - screen_base) / linelen;
else
var->yoffset=0;
var->nonstd=0;
var->activate=0;
var->vmode=FB_VMODE_NONINTERLACED;
var->yoffset = 0;
var->nonstd = 0;
var->activate = 0;
var->vmode = FB_VMODE_NONINTERLACED;
return 0;
}
static void stste_get_par( struct atafb_par *par )
static void stste_get_par(struct atafb_par *par)
{
unsigned long addr;
par->hw.st.mode=shifter_tt.st_shiftmode;
par->hw.st.sync=shifter.syncmode;
par->hw.st.mode = shifter_tt.st_shiftmode;
par->hw.st.sync = shifter.syncmode;
addr = ((shifter.bas_hi & 0xff) << 16) |
((shifter.bas_md & 0xff) << 8);
if (ATARIHW_PRESENT(EXTD_SHIFTER))
......@@ -1920,55 +2001,18 @@ static void stste_get_par( struct atafb_par *par )
par->screen_base = phys_to_virt(addr);
}
static void stste_set_par( struct atafb_par *par )
static void stste_set_par(struct atafb_par *par)
{
shifter_tt.st_shiftmode=par->hw.st.mode;
shifter.syncmode=par->hw.st.sync;
shifter_tt.st_shiftmode = par->hw.st.mode;
shifter.syncmode = par->hw.st.sync;
/* only set screen_base if really necessary */
if (current_par.screen_base != par->screen_base)
fbhw->set_screen_base(par->screen_base);
}
static int stste_getcolreg(unsigned regno, unsigned *red,
unsigned *green, unsigned *blue,
unsigned *transp, struct fb_info *info)
{
unsigned col, t;
if (regno > 15)
return 1;
col = shifter_tt.color_reg[regno];
if (ATARIHW_PRESENT(EXTD_SHIFTER)) {
t = ((col >> 7) & 0xe) | ((col >> 11) & 1);
t |= t << 4;
*red = t | (t << 8);
t = ((col >> 3) & 0xe) | ((col >> 7) & 1);
t |= t << 4;
*green = t | (t << 8);
t = ((col << 1) & 0xe) | ((col >> 3) & 1);
t |= t << 4;
*blue = t | (t << 8);
}
else {
t = (col >> 7) & 0xe;
t |= t << 4;
*red = t | (t << 8);
t = (col >> 3) & 0xe;
t |= t << 4;
*green = t | (t << 8);
t = (col << 1) & 0xe;
t |= t << 4;
*blue = t | (t << 8);
}
*transp = 0;
return 0;
}
static int stste_setcolreg(unsigned regno, unsigned red,
unsigned green, unsigned blue,
unsigned transp, struct fb_info *info)
static int stste_setcolreg(unsigned int regno, unsigned int red,
unsigned int green, unsigned int blue,
unsigned int transp, struct fb_info *info)
{
if (regno > 15)
return 1;
......@@ -1988,10 +2032,9 @@ static int stste_setcolreg(unsigned regno, unsigned red,
return 0;
}
static int stste_detect( void )
{ struct atafb_par par;
static int stste_detect(void)
{
struct atafb_par par;
/* Determine the connected monitor: The DMA sound must be
* disabled before reading the MFP GPIP, because the Sound
......@@ -1999,7 +2042,7 @@ static int stste_detect( void )
*/
if (ATARIHW_PRESENT(PCM_8BIT)) {
tt_dmasnd.ctrl = DMASND_CTRL_OFF;
udelay(20); /* wait a while for things to settle down */
udelay(20); /* wait a while for things to settle down */
}
mono_moni = (mfp.par_dt_reg & 0x80) == 0;
......@@ -2014,12 +2057,12 @@ static int stste_detect( void )
static void stste_set_screen_base(void *s_base)
{
unsigned long addr;
addr= virt_to_phys(s_base);
addr = virt_to_phys(s_base);
/* Setup Screen Memory */
shifter.bas_hi=(unsigned char) ((addr & 0xff0000) >> 16);
shifter.bas_md=(unsigned char) ((addr & 0x00ff00) >> 8);
shifter.bas_hi = (unsigned char)((addr & 0xff0000) >> 16);
shifter.bas_md = (unsigned char)((addr & 0x00ff00) >> 8);
if (ATARIHW_PRESENT(EXTD_SHIFTER))
shifter.bas_lo=(unsigned char) (addr & 0x0000ff);
shifter.bas_lo = (unsigned char)(addr & 0x0000ff);
}
#endif /* ATAFB_STE */
......@@ -2045,51 +2088,49 @@ static void stste_set_screen_base(void *s_base)
/* SWITCH_ACIA may be used for Falcon (ScreenBlaster III internal!) */
static void st_ovsc_switch(void)
{
unsigned long flags;
register unsigned char old, new;
unsigned long flags;
register unsigned char old, new;
if (!(atari_switches & ATARI_SWITCH_OVSC_MASK))
return;
local_irq_save(flags);
mfp.tim_ct_b = 0x10;
mfp.active_edge |= 8;
mfp.tim_ct_b = 0;
mfp.tim_dt_b = 0xf0;
mfp.tim_ct_b = 8;
while (mfp.tim_dt_b > 1) /* TOS does it this way, don't ask why */
;
new = mfp.tim_dt_b;
do {
udelay(LINE_DELAY);
old = new;
if (!(atari_switches & ATARI_SWITCH_OVSC_MASK))
return;
local_irq_save(flags);
mfp.tim_ct_b = 0x10;
mfp.active_edge |= 8;
mfp.tim_ct_b = 0;
mfp.tim_dt_b = 0xf0;
mfp.tim_ct_b = 8;
while (mfp.tim_dt_b > 1) /* TOS does it this way, don't ask why */
;
new = mfp.tim_dt_b;
} while (old != new);
mfp.tim_ct_b = 0x10;
udelay(SYNC_DELAY);
if (atari_switches & ATARI_SWITCH_OVSC_IKBD)
acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID | ACIA_RIE;
if (atari_switches & ATARI_SWITCH_OVSC_MIDI)
acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID;
if (atari_switches & (ATARI_SWITCH_OVSC_SND6|ATARI_SWITCH_OVSC_SND7)) {
sound_ym.rd_data_reg_sel = 14;
sound_ym.wd_data = sound_ym.rd_data_reg_sel |
((atari_switches&ATARI_SWITCH_OVSC_SND6) ? 0x40:0) |
((atari_switches&ATARI_SWITCH_OVSC_SND7) ? 0x80:0);
}
local_irq_restore(flags);
do {
udelay(LINE_DELAY);
old = new;
new = mfp.tim_dt_b;
} while (old != new);
mfp.tim_ct_b = 0x10;
udelay(SYNC_DELAY);
if (atari_switches & ATARI_SWITCH_OVSC_IKBD)
acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID | ACIA_RIE;
if (atari_switches & ATARI_SWITCH_OVSC_MIDI)
acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID;
if (atari_switches & (ATARI_SWITCH_OVSC_SND6|ATARI_SWITCH_OVSC_SND7)) {
sound_ym.rd_data_reg_sel = 14;
sound_ym.wd_data = sound_ym.rd_data_reg_sel |
((atari_switches & ATARI_SWITCH_OVSC_SND6) ? 0x40:0) |
((atari_switches & ATARI_SWITCH_OVSC_SND7) ? 0x80:0);
}
local_irq_restore(flags);
}
/* ------------------- External Video ---------------------- */
#ifdef ATAFB_EXT
static int ext_encode_fix( struct fb_fix_screeninfo *fix,
struct atafb_par *par )
static int ext_encode_fix(struct fb_fix_screeninfo *fix, struct atafb_par *par)
{
strcpy(fix->id,"Unknown Extern");
strcpy(fix->id, "Unknown Extern");
fix->smem_start = (unsigned long)external_addr;
fix->smem_len = PAGE_ALIGN(external_len);
if (external_depth == 1) {
......@@ -2099,31 +2140,29 @@ static int ext_encode_fix( struct fb_fix_screeninfo *fix,
fix->visual =
(external_pmode == FB_TYPE_INTERLEAVED_PLANES ||
external_pmode == FB_TYPE_PACKED_PIXELS) ?
FB_VISUAL_MONO10 :
FB_VISUAL_MONO01;
}
else {
FB_VISUAL_MONO10 : FB_VISUAL_MONO01;
} else {
/* Use STATIC if we don't know how to access color registers */
int visual = external_vgaiobase ?
FB_VISUAL_PSEUDOCOLOR :
FB_VISUAL_STATIC_PSEUDOCOLOR;
switch (external_pmode) {
case -1: /* truecolor */
fix->type=FB_TYPE_PACKED_PIXELS;
fix->visual=FB_VISUAL_TRUECOLOR;
case -1: /* truecolor */
fix->type = FB_TYPE_PACKED_PIXELS;
fix->visual = FB_VISUAL_TRUECOLOR;
break;
case FB_TYPE_PACKED_PIXELS:
fix->type=FB_TYPE_PACKED_PIXELS;
fix->visual=visual;
case FB_TYPE_PACKED_PIXELS:
fix->type = FB_TYPE_PACKED_PIXELS;
fix->visual = visual;
break;
case FB_TYPE_PLANES:
fix->type=FB_TYPE_PLANES;
fix->visual=visual;
case FB_TYPE_PLANES:
fix->type = FB_TYPE_PLANES;
fix->visual = visual;
break;
case FB_TYPE_INTERLEAVED_PLANES:
fix->type=FB_TYPE_INTERLEAVED_PLANES;
fix->type_aux=2;
fix->visual=visual;
case FB_TYPE_INTERLEAVED_PLANES:
fix->type = FB_TYPE_INTERLEAVED_PLANES;
fix->type_aux = 2;
fix->visual = visual;
break;
}
}
......@@ -2134,137 +2173,112 @@ static int ext_encode_fix( struct fb_fix_screeninfo *fix,
return 0;
}
static int ext_decode_var( struct fb_var_screeninfo *var,
struct atafb_par *par )
static int ext_decode_var(struct fb_var_screeninfo *var, struct atafb_par *par)
{
struct fb_var_screeninfo *myvar = &atafb_predefined[0];
if (var->bits_per_pixel > myvar->bits_per_pixel ||
var->xres > myvar->xres ||
var->xres_virtual > myvar->xres_virtual ||
var->yres > myvar->yres ||
var->xoffset > 0 ||
var->yoffset > 0)
var->xres > myvar->xres ||
var->xres_virtual > myvar->xres_virtual ||
var->yres > myvar->yres ||
var->xoffset > 0 ||
var->yoffset > 0)
return -EINVAL;
return 0;
}
static int ext_encode_var( struct fb_var_screeninfo *var,
struct atafb_par *par )
static int ext_encode_var(struct fb_var_screeninfo *var, struct atafb_par *par)
{
memset(var, 0, sizeof(struct fb_var_screeninfo));
var->red.offset=0;
var->red.length=(external_pmode == -1) ? external_depth/3 :
var->red.offset = 0;
var->red.length = (external_pmode == -1) ? external_depth / 3 :
(external_vgaiobase ? external_bitspercol : 0);
var->red.msb_right=0;
var->grayscale=0;
var->red.msb_right = 0;
var->grayscale = 0;
var->pixclock=31041;
var->left_margin=120; /* these are surely incorrect */
var->right_margin=100;
var->upper_margin=8;
var->lower_margin=16;
var->hsync_len=140;
var->vsync_len=30;
var->pixclock = 31041;
var->left_margin = 120; /* these are surely incorrect */
var->right_margin = 100;
var->upper_margin = 8;
var->lower_margin = 16;
var->hsync_len = 140;
var->vsync_len = 30;
var->height=-1;
var->width=-1;
var->height = -1;
var->width = -1;
var->sync=0;
var->sync = 0;
var->xres = external_xres;
var->yres = external_yres;
var->xres_virtual = external_xres_virtual;
var->bits_per_pixel = external_depth;
var->blue=var->green=var->red;
var->transp.offset=0;
var->transp.length=0;
var->transp.msb_right=0;
var->yres_virtual=var->yres;
var->xoffset=0;
var->yoffset=0;
var->nonstd=0;
var->activate=0;
var->vmode=FB_VMODE_NONINTERLACED;
var->blue = var->green = var->red;
var->transp.offset = 0;
var->transp.length = 0;
var->transp.msb_right = 0;
var->yres_virtual = var->yres;
var->xoffset = 0;
var->yoffset = 0;
var->nonstd = 0;
var->activate = 0;
var->vmode = FB_VMODE_NONINTERLACED;
return 0;
}
static void ext_get_par( struct atafb_par *par )
static void ext_get_par(struct atafb_par *par)
{
par->screen_base = external_addr;
}
static void ext_set_par( struct atafb_par *par )
static void ext_set_par(struct atafb_par *par)
{
}
#define OUTB(port,val) \
*((unsigned volatile char *) ((port)+external_vgaiobase))=(val)
*((unsigned volatile char *) ((port)+external_vgaiobase)) = (val)
#define INB(port) \
(*((unsigned volatile char *) ((port)+external_vgaiobase)))
#define DACDelay \
#define DACDelay \
do { \
unsigned char tmp=INB(0x3da); \
tmp=INB(0x3da); \
unsigned char tmp = INB(0x3da); \
tmp = INB(0x3da); \
} while (0)
static int ext_getcolreg( unsigned regno, unsigned *red,
unsigned *green, unsigned *blue,
unsigned *transp, struct fb_info *info )
static int ext_setcolreg(unsigned int regno, unsigned int red,
unsigned int green, unsigned int blue,
unsigned int transp, struct fb_info *info)
{
if (! external_vgaiobase)
return 1;
*red = ext_color[regno].red;
*green = ext_color[regno].green;
*blue = ext_color[regno].blue;
*transp=0;
return 0;
}
static int ext_setcolreg( unsigned regno, unsigned red,
unsigned green, unsigned blue,
unsigned transp, struct fb_info *info )
{ unsigned char colmask = (1 << external_bitspercol) - 1;
unsigned char colmask = (1 << external_bitspercol) - 1;
if (! external_vgaiobase)
if (!external_vgaiobase)
return 1;
ext_color[regno].red = red;
ext_color[regno].green = green;
ext_color[regno].blue = blue;
switch (external_card_type) {
case IS_VGA:
OUTB(0x3c8, regno);
DACDelay;
OUTB(0x3c9, red & colmask);
DACDelay;
OUTB(0x3c9, green & colmask);
DACDelay;
OUTB(0x3c9, blue & colmask);
DACDelay;
return 0;
case IS_MV300:
OUTB((MV300_reg[regno] << 2)+1, red);
OUTB((MV300_reg[regno] << 2)+1, green);
OUTB((MV300_reg[regno] << 2)+1, blue);
return 0;
default:
return 1;
}
}
case IS_VGA:
OUTB(0x3c8, regno);
DACDelay;
OUTB(0x3c9, red & colmask);
DACDelay;
OUTB(0x3c9, green & colmask);
DACDelay;
OUTB(0x3c9, blue & colmask);
DACDelay;
return 0;
static int ext_detect( void )
case IS_MV300:
OUTB((MV300_reg[regno] << 2) + 1, red);
OUTB((MV300_reg[regno] << 2) + 1, green);
OUTB((MV300_reg[regno] << 2) + 1, blue);
return 0;
default:
return 1;
}
}
static int ext_detect(void)
{
struct fb_var_screeninfo *myvar = &atafb_predefined[0];
struct atafb_par dummy_par;
......@@ -2284,213 +2298,182 @@ static int ext_detect( void )
static void set_screen_base(void *s_base)
{
unsigned long addr;
addr= virt_to_phys(s_base);
addr = virt_to_phys(s_base);
/* Setup Screen Memory */
shifter.bas_hi=(unsigned char) ((addr & 0xff0000) >> 16);
shifter.bas_md=(unsigned char) ((addr & 0x00ff00) >> 8);
shifter.bas_lo=(unsigned char) (addr & 0x0000ff);
shifter.bas_hi = (unsigned char)((addr & 0xff0000) >> 16);
shifter.bas_md = (unsigned char)((addr & 0x00ff00) >> 8);
shifter.bas_lo = (unsigned char)(addr & 0x0000ff);
}
static int pan_display( struct fb_var_screeninfo *var,
struct atafb_par *par )
static int pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
{
struct atafb_par *par = (struct atafb_par *)info->par;
if (!fbhw->set_screen_base ||
(!ATARIHW_PRESENT(EXTD_SHIFTER) && var->xoffset))
(!ATARIHW_PRESENT(EXTD_SHIFTER) && var->xoffset))
return -EINVAL;
var->xoffset = up(var->xoffset, 16);
par->screen_base = screen_base +
(var->yoffset * fb_display[fb_info.currcon].var.xres_virtual + var->xoffset)
* fb_display[fb_info.currcon].var.bits_per_pixel / 8;
fbhw->set_screen_base (par->screen_base);
(var->yoffset * info->var.xres_virtual + var->xoffset)
* info->var.bits_per_pixel / 8;
fbhw->set_screen_base(par->screen_base);
return 0;
}
/* ------------ Interfaces to hardware functions ------------ */
#ifdef ATAFB_TT
static struct fb_hwswitch tt_switch = {
tt_detect, tt_encode_fix, tt_decode_var, tt_encode_var,
tt_get_par, tt_set_par, tt_getcolreg,
set_screen_base, NULL, pan_display
.detect = tt_detect,
.encode_fix = tt_encode_fix,
.decode_var = tt_decode_var,
.encode_var = tt_encode_var,
.get_par = tt_get_par,
.set_par = tt_set_par,
.set_screen_base = set_screen_base,
.pan_display = pan_display,
};
#endif
#ifdef ATAFB_FALCON
static struct fb_hwswitch falcon_switch = {
falcon_detect, falcon_encode_fix, falcon_decode_var, falcon_encode_var,
falcon_get_par, falcon_set_par, falcon_getcolreg,
set_screen_base, falcon_blank, falcon_pan_display
.detect = falcon_detect,
.encode_fix = falcon_encode_fix,
.decode_var = falcon_decode_var,
.encode_var = falcon_encode_var,
.get_par = falcon_get_par,
.set_par = falcon_set_par,
.set_screen_base = set_screen_base,
.blank = falcon_blank,
.pan_display = falcon_pan_display,
};
#endif
#ifdef ATAFB_STE
static struct fb_hwswitch st_switch = {
stste_detect, stste_encode_fix, stste_decode_var, stste_encode_var,
stste_get_par, stste_set_par, stste_getcolreg,
stste_set_screen_base, NULL, pan_display
.detect = stste_detect,
.encode_fix = stste_encode_fix,
.decode_var = stste_decode_var,
.encode_var = stste_encode_var,
.get_par = stste_get_par,
.set_par = stste_set_par,
.set_screen_base = stste_set_screen_base,
.pan_display = pan_display
};
#endif
#ifdef ATAFB_EXT
static struct fb_hwswitch ext_switch = {
ext_detect, ext_encode_fix, ext_decode_var, ext_encode_var,
ext_get_par, ext_set_par, ext_getcolreg, NULL, NULL, NULL
.detect = ext_detect,
.encode_fix = ext_encode_fix,
.decode_var = ext_decode_var,
.encode_var = ext_encode_var,
.get_par = ext_get_par,
.set_par = ext_set_par,
};
#endif
static void atafb_get_par( struct atafb_par *par )
static void ata_get_par(struct atafb_par *par)
{
if (current_par_valid) {
*par=current_par;
}
if (current_par_valid)
*par = current_par;
else
fbhw->get_par(par);
}
static void atafb_set_par( struct atafb_par *par )
static void ata_set_par(struct atafb_par *par)
{
fbhw->set_par(par);
current_par=*par;
current_par_valid=1;
current_par = *par;
current_par_valid = 1;
}
/* =========================================================== */
/* ============== Hardware Independent Functions ============= */
/* =========================================================== */
/* used for hardware scrolling */
static int
fb_update_var(int con, struct fb_info *info)
{
int off=fb_display[con].var.yoffset*fb_display[con].var.xres_virtual*
fb_display[con].var.bits_per_pixel>>3;
current_par.screen_base=screen_base + off;
if (fbhw->set_screen_base)
fbhw->set_screen_base(current_par.screen_base);
return 0;
}
static int
do_fb_set_var(struct fb_var_screeninfo *var, int isactive)
static int do_fb_set_var(struct fb_var_screeninfo *var, int isactive)
{
int err,activate;
int err, activate;
struct atafb_par par;
if ((err=fbhw->decode_var(var, &par)))
err = fbhw->decode_var(var, &par);
if (err)
return err;
activate=var->activate;
activate = var->activate;
if (((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) && isactive)
atafb_set_par(&par);
ata_set_par(&par);
fbhw->encode_var(var, &par);
var->activate=activate;
var->activate = activate;
return 0;
}
static int
atafb_get_fix(struct fb_fix_screeninfo *fix, int con, struct fb_info *info)
static int atafb_get_fix(struct fb_fix_screeninfo *fix, struct fb_info *info)
{
struct atafb_par par;
if (con == -1)
atafb_get_par(&par);
else {
int err;
if ((err=fbhw->decode_var(&fb_display[con].var,&par)))
return err;
}
int err;
// Get fix directly (case con == -1 before)??
err = fbhw->decode_var(&info->var, &par);
if (err)
return err;
memset(fix, 0, sizeof(struct fb_fix_screeninfo));
return fbhw->encode_fix(fix, &par);
}
static int
atafb_get_var(struct fb_var_screeninfo *var, int con, struct fb_info *info)
static int atafb_get_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
struct atafb_par par;
if (con == -1) {
atafb_get_par(&par);
fbhw->encode_var(var, &par);
}
else
*var=fb_display[con].var;
ata_get_par(&par);
fbhw->encode_var(var, &par);
return 0;
}
static void
atafb_set_disp(int con, struct fb_info *info)
// No longer called by fbcon!
// Still called by set_var internally
static void atafb_set_disp(struct fb_info *info)
{
struct fb_fix_screeninfo fix;
struct fb_var_screeninfo var;
struct display *display;
atafb_get_var(&info->var, info);
atafb_get_fix(&info->fix, info);
if (con >= 0)
display = &fb_display[con];
else
display = &disp; /* used during initialization */
atafb_get_fix(&fix, con, info);
atafb_get_var(&var, con, info);
if (con == -1)
con=0;
info->screen_base = (void *)fix.smem_start;
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;
if (fix.visual != FB_VISUAL_PSEUDOCOLOR &&
fix.visual != FB_VISUAL_DIRECTCOLOR)
display->can_soft_blank = 0;
else
display->can_soft_blank = 1;
display->inverse =
(fix.visual == FB_VISUAL_MONO01 ? !inverse : inverse);
switch (fix.type) {
case FB_TYPE_INTERLEAVED_PLANES:
switch (var.bits_per_pixel) {
#ifdef FBCON_HAS_IPLAN2P2
case 2:
display->dispsw = &fbcon_iplan2p2;
info->screen_base = (void *)info->fix.smem_start;
switch (info->fix.type) {
case FB_TYPE_INTERLEAVED_PLANES:
switch (info->var.bits_per_pixel) {
case 2:
// display->dispsw = &fbcon_iplan2p2;
break;
#endif
#ifdef FBCON_HAS_IPLAN2P4
case 4:
display->dispsw = &fbcon_iplan2p4;
case 4:
// display->dispsw = &fbcon_iplan2p4;
break;
#endif
#ifdef FBCON_HAS_IPLAN2P8
case 8:
display->dispsw = &fbcon_iplan2p8;
case 8:
// display->dispsw = &fbcon_iplan2p8;
break;
#endif
}
break;
case FB_TYPE_PACKED_PIXELS:
switch (var.bits_per_pixel) {
case FB_TYPE_PACKED_PIXELS:
switch (info->var.bits_per_pixel) {
#ifdef FBCON_HAS_MFB
case 1:
display->dispsw = &fbcon_mfb;
case 1:
// display->dispsw = &fbcon_mfb;
break;
#endif
#ifdef FBCON_HAS_CFB8
case 8:
display->dispsw = &fbcon_cfb8;
case 8:
// display->dispsw = &fbcon_cfb8;
break;
#endif
#ifdef FBCON_HAS_CFB16
case 16:
display->dispsw = &fbcon_cfb16;
display->dispsw_data = fbcon_cfb16_cmap;
case 16:
// display->dispsw = &fbcon_cfb16;
// display->dispsw_data = fbcon_cfb16_cmap;
break;
#endif
}
......@@ -2498,74 +2481,203 @@ atafb_set_disp(int con, struct fb_info *info)
}
}
static int atafb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
u_int transp, struct fb_info *info)
{
red >>= 8;
green >>= 8;
blue >>= 8;
return info->fbops->fb_setcolreg(regno, red, green, blue, transp, info);
}
static int
atafb_set_var(struct fb_var_screeninfo *var, int con, struct fb_info *info)
atafb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
{
int err,oldxres,oldyres,oldbpp,oldxres_virtual,
oldyres_virtual,oldyoffset;
if ((err=do_fb_set_var(var, con==info->currcon)))
return err;
if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) {
oldxres=fb_display[con].var.xres;
oldyres=fb_display[con].var.yres;
oldxres_virtual=fb_display[con].var.xres_virtual;
oldyres_virtual=fb_display[con].var.yres_virtual;
oldbpp=fb_display[con].var.bits_per_pixel;
oldyoffset=fb_display[con].var.yoffset;
fb_display[con].var=*var;
if (oldxres != var->xres || oldyres != var->yres
|| oldxres_virtual != var->xres_virtual
|| oldyres_virtual != var->yres_virtual
|| oldbpp != var->bits_per_pixel
|| oldyoffset != var->yoffset) {
atafb_set_disp(con, info);
(*fb_info.changevar)(con);
fb_alloc_cmap(&fb_display[con].cmap, 0, 0);
do_install_cmap(con, info);
}
int xoffset = var->xoffset;
int yoffset = var->yoffset;
int err;
if (var->vmode & FB_VMODE_YWRAP) {
if (yoffset < 0 || yoffset >= info->var.yres_virtual || xoffset)
return -EINVAL;
} else {
if (xoffset + info->var.xres > info->var.xres_virtual ||
yoffset + info->var.yres > info->var.yres_virtual)
return -EINVAL;
}
var->activate=0;
if (fbhw->pan_display) {
err = fbhw->pan_display(var, info);
if (err)
return err;
} else
return -EINVAL;
info->var.xoffset = xoffset;
info->var.yoffset = yoffset;
if (var->vmode & FB_VMODE_YWRAP)
info->var.vmode |= FB_VMODE_YWRAP;
else
info->var.vmode &= ~FB_VMODE_YWRAP;
return 0;
}
/*
* generic drawing routines; imageblit needs updating for image depth > 1
*/
#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
static int
atafb_get_cmap(struct fb_cmap *cmap, int kspc, int con, struct fb_info *info)
static void atafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
{
if (con == info->currcon) /* current console ? */
return fb_get_cmap(cmap, kspc, fbhw->getcolreg, info);
struct atafb_par *par = (struct atafb_par *)info->par;
int x2, y2;
u32 width, height;
if (!rect->width || !rect->height)
return;
/*
* 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;
width = x2 - rect->dx;
height = y2 - rect->dy;
if (info->var.bits_per_pixel == 1)
atafb_mfb_fillrect(info, par->next_line, rect->color,
rect->dy, rect->dx, height, width);
else if (info->var.bits_per_pixel == 2)
atafb_iplan2p2_fillrect(info, par->next_line, rect->color,
rect->dy, rect->dx, height, width);
else if (info->var.bits_per_pixel == 4)
atafb_iplan2p4_fillrect(info, par->next_line, rect->color,
rect->dy, rect->dx, height, width);
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;
atafb_iplan2p8_fillrect(info, par->next_line, rect->color,
rect->dy, rect->dx, height, width);
return;
}
static int
atafb_pan_display(struct fb_var_screeninfo *var, int con, struct fb_info *info)
static void atafb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
{
int xoffset = var->xoffset;
int yoffset = var->yoffset;
int err;
struct atafb_par *par = (struct atafb_par *)info->par;
int x2, y2;
u32 dx, dy, sx, sy, width, height;
int rev_copy = 0;
/* clip the destination */
x2 = area->dx + area->width;
y2 = area->dy + area->height;
dx = area->dx > 0 ? area->dx : 0;
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;
width = x2 - dx;
height = y2 - dy;
/* update sx,sy */
sx = area->sx + (dx - area->dx);
sy = area->sy + (dy - area->dy);
/* the source must be completely inside the virtual screen */
if (sx < 0 || sy < 0 || (sx + width) > info->var.xres_virtual ||
(sy + height) > info->var.yres_virtual)
return;
if ( xoffset < 0 || xoffset + fb_display[con].var.xres > fb_display[con].var.xres_virtual
|| yoffset < 0 || yoffset + fb_display[con].var.yres > fb_display[con].var.yres_virtual)
return -EINVAL;
if (dy > sy || (dy == sy && dx > sx)) {
dy += height;
sy += height;
rev_copy = 1;
}
if (con == info->currcon) {
if (fbhw->pan_display) {
if ((err = fbhw->pan_display(var, &current_par)))
return err;
if (info->var.bits_per_pixel == 1)
atafb_mfb_copyarea(info, par->next_line, sy, sx, dy, dx, height, width);
else if (info->var.bits_per_pixel == 2)
atafb_iplan2p2_copyarea(info, par->next_line, sy, sx, dy, dx, height, width);
else if (info->var.bits_per_pixel == 4)
atafb_iplan2p4_copyarea(info, par->next_line, sy, sx, dy, dx, height, width);
else
atafb_iplan2p8_copyarea(info, par->next_line, sy, sx, dy, dx, height, width);
return;
}
static void atafb_imageblit(struct fb_info *info, const struct fb_image *image)
{
struct atafb_par *par = (struct atafb_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) {
// used for font data
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--) {
if (info->var.bits_per_pixel == 1)
atafb_mfb_linefill(info, par->next_line,
dy, dx, width, src,
image->bg_color, image->fg_color);
else if (info->var.bits_per_pixel == 2)
atafb_iplan2p2_linefill(info, par->next_line,
dy, dx, width, src,
image->bg_color, image->fg_color);
else if (info->var.bits_per_pixel == 4)
atafb_iplan2p4_linefill(info, par->next_line,
dy, dx, width, src,
image->bg_color, image->fg_color);
else
atafb_iplan2p8_linefill(info, par->next_line,
dy, dx, width, src,
image->bg_color, image->fg_color);
dy++;
src += pitch;
}
else
return -EINVAL;
} else {
// only used for logo; broken
c2p(info->screen_base, image->data, dx, dy, width, height,
par->next_line, par->next_plane, image->width,
info->var.bits_per_pixel);
}
fb_display[con].var.xoffset = var->xoffset;
fb_display[con].var.yoffset = var->yoffset;
return 0;
}
static int
......@@ -2584,7 +2696,7 @@ atafb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
if (copy_from_user((void *)&current_par, (void *)arg,
sizeof(struct atafb_par)))
return -EFAULT;
atafb_set_par(&current_par);
ata_set_par(&current_par);
return 0;
#endif
}
......@@ -2598,42 +2710,82 @@ atafb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
* 3 = suspend hsync
* 4 = off
*/
static int
atafb_blank(int blank, struct fb_info *info)
static int atafb_blank(int blank, struct fb_info *info)
{
unsigned short black[16];
struct fb_cmap cmap;
if (fbhw->blank && !fbhw->blank(blank))
return 1;
if (blank) {
memset(black, 0, 16*sizeof(unsigned short));
cmap.red=black;
cmap.green=black;
cmap.blue=black;
cmap.transp=NULL;
cmap.start=0;
cmap.len=16;
fb_set_cmap(&cmap, 1, info);
memset(black, 0, 16 * sizeof(unsigned short));
cmap.red = black;
cmap.green = black;
cmap.blue = black;
cmap.transp = NULL;
cmap.start = 0;
cmap.len = 16;
fb_set_cmap(&cmap, info);
}
#if 0
else
do_install_cmap(info->currcon, info);
do_install_cmap(info);
#endif
return 0;
}
/*
* New fbcon interface ...
*/
/* check var by decoding var into hw par, rounding if necessary,
* then encoding hw par back into new, validated var */
static int atafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
int err;
struct atafb_par par;
/* Validate wanted screen parameters */
// if ((err = ata_decode_var(var, &par)))
err = fbhw->decode_var(var, &par);
if (err)
return err;
/* Encode (possibly rounded) screen parameters */
fbhw->encode_var(var, &par);
return 0;
}
/* actually set hw par by decoding var, then setting hardware from
* hw par just decoded */
static int atafb_set_par(struct fb_info *info)
{
struct atafb_par *par = (struct atafb_par *)info->par;
/* Decode wanted screen parameters */
fbhw->decode_var(&info->var, par);
fbhw->encode_fix(&info->fix, par);
/* Set new videomode */
ata_set_par(par);
return 0;
}
static struct fb_ops atafb_ops = {
.owner = THIS_MODULE,
.fb_get_fix = atafb_get_fix,
.fb_get_var = atafb_get_var,
.fb_set_var = atafb_set_var,
.fb_get_cmap = atafb_get_cmap,
.fb_set_cmap = gen_set_cmap,
.fb_pan_display =atafb_pan_display,
.fb_check_var = atafb_check_var,
.fb_set_par = atafb_set_par,
.fb_setcolreg = atafb_setcolreg,
.fb_blank = atafb_blank,
.fb_pan_display = atafb_pan_display,
.fb_fillrect = atafb_fillrect,
.fb_copyarea = atafb_copyarea,
.fb_imageblit = atafb_imageblit,
.fb_ioctl = atafb_ioctl,
};
static void
check_default_par( int detected_mode )
static void check_default_par(int detected_mode)
{
char default_name[10];
int i;
......@@ -2642,199 +2794,41 @@ check_default_par( int detected_mode )
/* First try the user supplied mode */
if (default_par) {
var=atafb_predefined[default_par-1];
var = atafb_predefined[default_par - 1];
var.activate = FB_ACTIVATE_TEST;
if (do_fb_set_var(&var,1))
default_par=0; /* failed */
if (do_fb_set_var(&var, 1))
default_par = 0; /* failed */
}
/* Next is the autodetected one */
if (! default_par) {
var=atafb_predefined[detected_mode-1]; /* autodetect */
if (!default_par) {
var = atafb_predefined[detected_mode - 1]; /* autodetect */
var.activate = FB_ACTIVATE_TEST;
if (!do_fb_set_var(&var,1))
default_par=detected_mode;
if (!do_fb_set_var(&var, 1))
default_par = detected_mode;
}
/* If that also failed, try some default modes... */
if (! default_par) {
if (!default_par) {
/* try default1, default2... */
for (i=1 ; i < 10 ; i++) {
sprintf(default_name,"default%d",i);
default_par=get_video_mode(default_name);
if (! default_par)
for (i = 1; i < 10; i++) {
sprintf(default_name,"default%d", i);
default_par = get_video_mode(default_name);
if (!default_par)
panic("can't set default video mode");
var=atafb_predefined[default_par-1];
var = atafb_predefined[default_par - 1];
var.activate = FB_ACTIVATE_TEST;
if (! do_fb_set_var(&var,1))
if (!do_fb_set_var(&var,1))
break; /* ok */
}
}
min_mem=var.xres_virtual * var.yres_virtual * var.bits_per_pixel/8;
min_mem = var.xres_virtual * var.yres_virtual * var.bits_per_pixel / 8;
if (default_mem_req < min_mem)
default_mem_req=min_mem;
}
static int
atafb_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, fbhw->getcolreg,
info);
do_fb_set_var(&fb_display[con].var,1);
info->currcon=con;
/* Install new colormap */
do_install_cmap(con, info);
return 0;
default_mem_req = min_mem;
}
int __init atafb_init(void)
{
int pad;
int detected_mode;
unsigned long mem_req;
if (!MACH_IS_ATARI)
return -ENXIO;
do {
#ifdef ATAFB_EXT
if (external_addr) {
fbhw = &ext_switch;
atafb_ops.fb_setcolreg = &ext_setcolreg;
break;
}
#endif
#ifdef ATAFB_TT
if (ATARIHW_PRESENT(TT_SHIFTER)) {
fbhw = &tt_switch;
atafb_ops.fb_setcolreg = &tt_setcolreg;
break;
}
#endif
#ifdef ATAFB_FALCON
if (ATARIHW_PRESENT(VIDEL_SHIFTER)) {
fbhw = &falcon_switch;
atafb_ops.fb_setcolreg = &falcon_setcolreg;
request_irq(IRQ_AUTO_4, falcon_vbl_switcher, IRQ_TYPE_PRIO,
"framebuffer/modeswitch", falcon_vbl_switcher);
break;
}
#endif
#ifdef ATAFB_STE
if (ATARIHW_PRESENT(STND_SHIFTER) ||
ATARIHW_PRESENT(EXTD_SHIFTER)) {
fbhw = &st_switch;
atafb_ops.fb_setcolreg = &stste_setcolreg;
break;
}
fbhw = &st_switch;
atafb_ops.fb_setcolreg = &stste_setcolreg;
printk("Cannot determine video hardware; defaulting to ST(e)\n");
#else /* ATAFB_STE */
/* no default driver included */
/* Nobody will ever see this message :-) */
panic("Cannot initialize video hardware");
#endif
} while (0);
/* Multisync monitor capabilities */
/* Atari-TOS defaults if no boot option present */
if (fb_info.monspecs.hfmin == 0) {
fb_info.monspecs.hfmin = 31000;
fb_info.monspecs.hfmax = 32000;
fb_info.monspecs.vfmin = 58;
fb_info.monspecs.vfmax = 62;
}
detected_mode = fbhw->detect();
check_default_par(detected_mode);
#ifdef ATAFB_EXT
if (!external_addr) {
#endif /* ATAFB_EXT */
mem_req = default_mem_req + ovsc_offset + ovsc_addlen;
mem_req = PAGE_ALIGN(mem_req) + PAGE_SIZE;
screen_base = atari_stram_alloc(mem_req, "atafb");
if (!screen_base)
panic("Cannot allocate screen memory");
memset(screen_base, 0, mem_req);
pad = -(unsigned long)screen_base & (PAGE_SIZE-1);
screen_base+=pad;
real_screen_base=screen_base+ovsc_offset;
screen_len = (mem_req - pad - ovsc_offset) & PAGE_MASK;
st_ovsc_switch();
if (CPU_IS_040_OR_060) {
/* On a '040+, the cache mode of video RAM must be set to
* write-through also for internal video hardware! */
cache_push(virt_to_phys(screen_base), screen_len);
kernel_set_cachemode(screen_base, screen_len,
IOMAP_WRITETHROUGH);
}
#ifdef ATAFB_EXT
}
else {
/* Map the video memory (physical address given) to somewhere
* in the kernel address space.
*/
external_addr =
ioremap_writethrough((unsigned long)external_addr,
external_len);
if (external_vgaiobase)
external_vgaiobase =
(unsigned long)ioremap(external_vgaiobase, 0x10000);
screen_base =
real_screen_base = external_addr;
screen_len = external_len & PAGE_MASK;
memset (screen_base, 0, external_len);
}
#endif /* ATAFB_EXT */
strcpy(fb_info.modename, "Atari Builtin ");
fb_info.changevar = NULL;
fb_info.fbops = &atafb_ops;
fb_info.disp = &disp;
fb_info.currcon = -1;
fb_info.switch_con = &atafb_switch;
fb_info.updatevar = &fb_update_var;
fb_info.flags = FBINFO_FLAG_DEFAULT;
do_fb_set_var(&atafb_predefined[default_par-1], 1);
strcat(fb_info.modename, fb_var_names[default_par-1][0]);
atafb_get_var(&disp.var, -1, &fb_info);
atafb_set_disp(-1, &fb_info);
do_install_cmap(0, &fb_info);
if (register_framebuffer(&fb_info) < 0) {
#ifdef ATAFB_EXT
if (external_addr) {
iounmap(external_addr);
external_addr = NULL;
}
if (external_vgaiobase) {
iounmap((void*)external_vgaiobase);
external_vgaiobase = 0;
}
#endif
return -EINVAL;
}
printk("Determined %dx%d, depth %d\n",
disp.var.xres, disp.var.yres, disp.var.bits_per_pixel);
if ((disp.var.xres != disp.var.xres_virtual) ||
(disp.var.yres != disp.var.yres_virtual))
printk(" virtual %dx%d\n",
disp.var.xres_virtual, disp.var.yres_virtual);
printk("fb%d: %s frame buffer device, using %dK of video memory\n",
fb_info.node, fb_info.modename, screen_len>>10);
/* TODO: This driver cannot be unloaded yet */
return 0;
}
#ifdef ATAFB_EXT
static void __init atafb_setup_ext(char *spec)
{
int xres, xres_virtual, yres, depth, planes;
int xres, xres_virtual, yres, depth, planes;
unsigned long addr, len;
char *p;
......@@ -2848,27 +2842,31 @@ static void __init atafb_setup_ext(char *spec)
*
* Even xres_virtual is available, we neither support panning nor hw-scrolling!
*/
if (!(p = strsep(&spec, ";")) || !*p)
return;
p = strsep(&spec, ";");
if (!p || !*p)
return;
xres_virtual = xres = simple_strtoul(p, NULL, 10);
if (xres <= 0)
return;
return;
if (!(p = strsep(&spec, ";")) || !*p)
return;
p = strsep(&spec, ";");
if (!p || !*p)
return;
yres = simple_strtoul(p, NULL, 10);
if (yres <= 0)
return;
return;
if (!(p = strsep(&spec, ";")) || !*p)
return;
p = strsep(&spec, ";");
if (!p || !*p)
return;
depth = simple_strtoul(p, NULL, 10);
if (depth != 1 && depth != 2 && depth != 4 && depth != 8 &&
depth != 16 && depth != 24)
return;
depth != 16 && depth != 24)
return;
if (!(p = strsep(&spec, ";")) || !*p)
return;
p = strsep(&spec, ";");
if (!p || !*p)
return;
if (*p == 'i')
planes = FB_TYPE_INTERLEAVED_PLANES;
else if (*p == 'p')
......@@ -2876,25 +2874,27 @@ static void __init atafb_setup_ext(char *spec)
else if (*p == 'n')
planes = FB_TYPE_PLANES;
else if (*p == 't')
planes = -1; /* true color */
planes = -1; /* true color */
else
return;
if (!(p = strsep(&spec, ";")) || !*p)
p = strsep(&spec, ";");
if (!p || !*p)
return;
addr = simple_strtoul(p, NULL, 0);
if (!(p = strsep(&spec, ";")) || !*p)
len = xres*yres*depth/8;
p = strsep(&spec, ";");
if (!p || !*p)
len = xres * yres * depth / 8;
else
len = simple_strtoul(p, NULL, 0);
if ((p = strsep(&spec, ";")) && *p) {
external_vgaiobase=simple_strtoul(p, NULL, 0);
}
p = strsep(&spec, ";");
if (p && *p)
external_vgaiobase = simple_strtoul(p, NULL, 0);
if ((p = strsep(&spec, ";")) && *p) {
p = strsep(&spec, ";");
if (p && *p) {
external_bitspercol = simple_strtoul(p, NULL, 0);
if (external_bitspercol > 8)
external_bitspercol = 8;
......@@ -2902,59 +2902,61 @@ static void __init atafb_setup_ext(char *spec)
external_bitspercol = 1;
}
if ((p = strsep(&spec, ";")) && *p) {
p = strsep(&spec, ";");
if (p && *p) {
if (!strcmp(p, "vga"))
external_card_type = IS_VGA;
if (!strcmp(p, "mv300"))
external_card_type = IS_MV300;
}
if ((p = strsep(&spec, ";")) && *p) {
p = strsep(&spec, ";");
if (p && *p) {
xres_virtual = simple_strtoul(p, NULL, 10);
if (xres_virtual < xres)
xres_virtual = xres;
if (xres_virtual*yres*depth/8 > len)
len=xres_virtual*yres*depth/8;
if (xres_virtual * yres * depth / 8 > len)
len = xres_virtual * yres * depth / 8;
}
external_xres = xres;
external_xres_virtual = xres_virtual;
external_yres = yres;
external_xres = xres;
external_xres_virtual = xres_virtual;
external_yres = yres;
external_depth = depth;
external_pmode = planes;
external_addr = (void *)addr;
external_len = len;
if (external_card_type == IS_MV300)
switch (external_depth) {
case 1:
MV300_reg = MV300_reg_1bit;
break;
case 4:
MV300_reg = MV300_reg_4bit;
break;
case 8:
MV300_reg = MV300_reg_8bit;
break;
}
external_addr = (void *)addr;
external_len = len;
if (external_card_type == IS_MV300) {
switch (external_depth) {
case 1:
MV300_reg = MV300_reg_1bit;
break;
case 4:
MV300_reg = MV300_reg_4bit;
break;
case 8:
MV300_reg = MV300_reg_8bit;
break;
}
}
}
#endif /* ATAFB_EXT */
static void __init atafb_setup_int(char *spec)
{
/* Format to config extended internal video hardware like OverScan:
"internal:<xres>;<yres>;<xres_max>;<yres_max>;<offset>"
Explanation:
<xres>: x-resolution
<yres>: y-resolution
The following are only needed if you have an overscan which
needs a black border:
<xres_max>: max. length of a line in pixels your OverScan hardware would allow
<yres_max>: max. number of lines your OverScan hardware would allow
<offset>: Offset from physical beginning to visible beginning
of screen in bytes
*/
* "internal:<xres>;<yres>;<xres_max>;<yres_max>;<offset>"
* Explanation:
* <xres>: x-resolution
* <yres>: y-resolution
* The following are only needed if you have an overscan which
* needs a black border:
* <xres_max>: max. length of a line in pixels your OverScan hardware would allow
* <yres_max>: max. number of lines your OverScan hardware would allow
* <offset>: Offset from physical beginning to visible beginning
* of screen in bytes
*/
int xres;
char *p;
......@@ -2963,23 +2965,19 @@ static void __init atafb_setup_int(char *spec)
xres = simple_strtoul(p, NULL, 10);
if (!(p = strsep(&spec, ";")) || !*p)
return;
sttt_xres=xres;
tt_yres=st_yres=simple_strtoul(p, NULL, 10);
if ((p=strsep(&spec, ";")) && *p) {
sttt_xres_virtual=simple_strtoul(p, NULL, 10);
}
if ((p=strsep(&spec, ";")) && *p) {
sttt_yres_virtual=simple_strtoul(p, NULL, 0);
}
if ((p=strsep(&spec, ";")) && *p) {
ovsc_offset=simple_strtoul(p, NULL, 0);
}
sttt_xres = xres;
tt_yres = st_yres = simple_strtoul(p, NULL, 10);
if ((p = strsep(&spec, ";")) && *p)
sttt_xres_virtual = simple_strtoul(p, NULL, 10);
if ((p = strsep(&spec, ";")) && *p)
sttt_yres_virtual = simple_strtoul(p, NULL, 0);
if ((p = strsep(&spec, ";")) && *p)
ovsc_offset = simple_strtoul(p, NULL, 0);
if (ovsc_offset || (sttt_yres_virtual != st_yres))
use_hwscroll=0;
use_hwscroll = 0;
}
#ifdef ATAFB_FALCON
static void __init atafb_setup_mcap(char *spec)
{
......@@ -3018,7 +3016,6 @@ static void __init atafb_setup_mcap(char *spec)
}
#endif /* ATAFB_FALCON */
static void __init atafb_setup_user(char *spec)
{
/* Format of user defined video mode is: <xres>;<yres>;<depth>
......@@ -3026,81 +3023,257 @@ static void __init atafb_setup_user(char *spec)
char *p;
int xres, yres, depth, temp;
if (!(p = strsep(&spec, ";")) || !*p)
p = strsep(&spec, ";");
if (!p || !*p)
return;
xres = simple_strtoul(p, NULL, 10);
if (!(p = strsep(&spec, ";")) || !*p)
p = strsep(&spec, ";");
if (!p || !*p)
return;
yres = simple_strtoul(p, NULL, 10);
if (!(p = strsep(&spec, "")) || !*p)
p = strsep(&spec, "");
if (!p || !*p)
return;
depth = simple_strtoul(p, NULL, 10);
if ((temp=get_video_mode("user0"))) {
default_par=temp;
atafb_predefined[default_par-1].xres = xres;
atafb_predefined[default_par-1].yres = yres;
atafb_predefined[default_par-1].bits_per_pixel = depth;
temp = get_video_mode("user0");
if (temp) {
default_par = temp;
atafb_predefined[default_par - 1].xres = xres;
atafb_predefined[default_par - 1].yres = yres;
atafb_predefined[default_par - 1].bits_per_pixel = depth;
}
}
int __init atafb_setup( char *options )
int __init atafb_setup(char *options)
{
char *this_opt;
int temp;
fb_info.fontname[0] = '\0';
char *this_opt;
int temp;
if (!options || !*options)
if (!options || !*options)
return 0;
while ((this_opt = strsep(&options, ",")) != NULL) {
if (!*this_opt) continue;
if ((temp=get_video_mode(this_opt)))
default_par=temp;
else if (! strcmp(this_opt, "inverse"))
inverse=1;
else if (!strncmp(this_opt, "font:", 5))
strcpy(fb_info.fontname, this_opt+5);
else if (! strncmp(this_opt, "hwscroll_",9)) {
hwscroll=simple_strtoul(this_opt+9, NULL, 10);
if (hwscroll < 0)
hwscroll = 0;
if (hwscroll > 200)
hwscroll = 200;
}
while ((this_opt = strsep(&options, ",")) != NULL) {
if (!*this_opt)
continue;
if ((temp = get_video_mode(this_opt))) {
default_par = temp;
mode_option = this_opt;
} else if (!strcmp(this_opt, "inverse"))
inverse = 1;
else if (!strncmp(this_opt, "hwscroll_", 9)) {
hwscroll = simple_strtoul(this_opt + 9, NULL, 10);
if (hwscroll < 0)
hwscroll = 0;
if (hwscroll > 200)
hwscroll = 200;
}
#ifdef ATAFB_EXT
else if (!strcmp(this_opt,"mv300")) {
external_bitspercol = 8;
external_card_type = IS_MV300;
else if (!strcmp(this_opt, "mv300")) {
external_bitspercol = 8;
external_card_type = IS_MV300;
} else if (!strncmp(this_opt, "external:", 9))
atafb_setup_ext(this_opt + 9);
#endif
else if (!strncmp(this_opt, "internal:", 9))
atafb_setup_int(this_opt + 9);
#ifdef ATAFB_FALCON
else if (!strncmp(this_opt, "eclock:", 7)) {
fext.f = simple_strtoul(this_opt + 7, NULL, 10);
/* external pixelclock in kHz --> ps */
fext.t = 1000000000 / fext.f;
fext.f *= 1000;
} else if (!strncmp(this_opt, "monitorcap:", 11))
atafb_setup_mcap(this_opt + 11);
#endif
else if (!strcmp(this_opt, "keep"))
DontCalcRes = 1;
else if (!strncmp(this_opt, "R", 1))
atafb_setup_user(this_opt + 1);
}
else if (!strncmp(this_opt,"external:",9))
atafb_setup_ext(this_opt+9);
return 0;
}
int __init atafb_init(void)
{
int pad;
int detected_mode;
unsigned int defmode = 0;
unsigned long mem_req;
#ifndef MODULE
char *option = NULL;
if (fb_get_options("atafb", &option))
return -ENODEV;
atafb_setup(option);
#endif
printk("atafb_init: start\n");
if (!MACH_IS_ATARI)
return -ENXIO;
do {
#ifdef ATAFB_EXT
if (external_addr) {
printk("atafb_init: initializing external hw\n");
fbhw = &ext_switch;
atafb_ops.fb_setcolreg = &ext_setcolreg;
defmode = DEFMODE_EXT;
break;
}
#endif
#ifdef ATAFB_TT
if (ATARIHW_PRESENT(TT_SHIFTER)) {
printk("atafb_init: initializing TT hw\n");
fbhw = &tt_switch;
atafb_ops.fb_setcolreg = &tt_setcolreg;
defmode = DEFMODE_TT;
break;
}
#endif
else if (!strncmp(this_opt,"internal:",9))
atafb_setup_int(this_opt+9);
#ifdef ATAFB_FALCON
else if (!strncmp(this_opt, "eclock:", 7)) {
fext.f = simple_strtoul(this_opt+7, NULL, 10);
/* external pixelclock in kHz --> ps */
fext.t = 1000000000/fext.f;
fext.f *= 1000;
if (ATARIHW_PRESENT(VIDEL_SHIFTER)) {
printk("atafb_init: initializing Falcon hw\n");
fbhw = &falcon_switch;
atafb_ops.fb_setcolreg = &falcon_setcolreg;
request_irq(IRQ_AUTO_4, falcon_vbl_switcher, IRQ_TYPE_PRIO,
"framebuffer/modeswitch", falcon_vbl_switcher);
defmode = DEFMODE_F30;
break;
}
#endif
#ifdef ATAFB_STE
if (ATARIHW_PRESENT(STND_SHIFTER) ||
ATARIHW_PRESENT(EXTD_SHIFTER)) {
printk("atafb_init: initializing ST/E hw\n");
fbhw = &st_switch;
atafb_ops.fb_setcolreg = &stste_setcolreg;
defmode = DEFMODE_STE;
break;
}
fbhw = &st_switch;
atafb_ops.fb_setcolreg = &stste_setcolreg;
printk("Cannot determine video hardware; defaulting to ST(e)\n");
#else /* ATAFB_STE */
/* no default driver included */
/* Nobody will ever see this message :-) */
panic("Cannot initialize video hardware");
#endif
} while (0);
/* Multisync monitor capabilities */
/* Atari-TOS defaults if no boot option present */
if (fb_info.monspecs.hfmin == 0) {
fb_info.monspecs.hfmin = 31000;
fb_info.monspecs.hfmax = 32000;
fb_info.monspecs.vfmin = 58;
fb_info.monspecs.vfmax = 62;
}
else if (!strncmp(this_opt, "monitorcap:", 11))
atafb_setup_mcap(this_opt+11);
detected_mode = fbhw->detect();
check_default_par(detected_mode);
#ifdef ATAFB_EXT
if (!external_addr) {
#endif /* ATAFB_EXT */
mem_req = default_mem_req + ovsc_offset + ovsc_addlen;
mem_req = PAGE_ALIGN(mem_req) + PAGE_SIZE;
screen_base = atari_stram_alloc(mem_req, "atafb");
if (!screen_base)
panic("Cannot allocate screen memory");
memset(screen_base, 0, mem_req);
pad = -(unsigned long)screen_base & (PAGE_SIZE - 1);
screen_base += pad;
real_screen_base = screen_base + ovsc_offset;
screen_len = (mem_req - pad - ovsc_offset) & PAGE_MASK;
st_ovsc_switch();
if (CPU_IS_040_OR_060) {
/* On a '040+, the cache mode of video RAM must be set to
* write-through also for internal video hardware! */
cache_push(virt_to_phys(screen_base), screen_len);
kernel_set_cachemode(screen_base, screen_len,
IOMAP_WRITETHROUGH);
}
printk("atafb: screen_base %p real_screen_base %p screen_len %d\n",
screen_base, real_screen_base, screen_len);
#ifdef ATAFB_EXT
} else {
/* Map the video memory (physical address given) to somewhere
* in the kernel address space.
*/
external_addr = ioremap_writethrough((unsigned long)external_addr,
external_len);
if (external_vgaiobase)
external_vgaiobase =
(unsigned long)ioremap(external_vgaiobase, 0x10000);
screen_base =
real_screen_base = external_addr;
screen_len = external_len & PAGE_MASK;
memset (screen_base, 0, external_len);
}
#endif /* ATAFB_EXT */
// strcpy(fb_info.mode->name, "Atari Builtin ");
fb_info.fbops = &atafb_ops;
// try to set default (detected; requested) var
do_fb_set_var(&atafb_predefined[default_par - 1], 1);
// reads hw state into current par, which may not be sane yet
ata_get_par(&current_par);
fb_info.par = &current_par;
// tries to read from HW which may not be initialized yet
// so set sane var first, then call atafb_set_par
atafb_get_var(&fb_info.var, &fb_info);
fb_info.flags = FBINFO_FLAG_DEFAULT;
if (!fb_find_mode(&fb_info.var, &fb_info, mode_option, atafb_modedb,
NUM_TOTAL_MODES, &atafb_modedb[defmode],
fb_info.var.bits_per_pixel)) {
return -EINVAL;
}
atafb_set_disp(&fb_info);
fb_alloc_cmap(&(fb_info.cmap), 1 << fb_info.var.bits_per_pixel, 0);
printk("Determined %dx%d, depth %d\n",
fb_info.var.xres, fb_info.var.yres, fb_info.var.bits_per_pixel);
if ((fb_info.var.xres != fb_info.var.xres_virtual) ||
(fb_info.var.yres != fb_info.var.yres_virtual))
printk(" virtual %dx%d\n", fb_info.var.xres_virtual,
fb_info.var.yres_virtual);
if (register_framebuffer(&fb_info) < 0) {
#ifdef ATAFB_EXT
if (external_addr) {
iounmap(external_addr);
external_addr = NULL;
}
if (external_vgaiobase) {
iounmap((void*)external_vgaiobase);
external_vgaiobase = 0;
}
#endif
else if (!strcmp(this_opt, "keep"))
DontCalcRes = 1;
else if (!strncmp(this_opt, "R", 1))
atafb_setup_user(this_opt+1);
}
return 0;
return -EINVAL;
}
// FIXME: mode needs setting!
//printk("fb%d: %s frame buffer device, using %dK of video memory\n",
// fb_info.node, fb_info.mode->name, screen_len>>10);
printk("fb%d: frame buffer device, using %dK of video memory\n",
fb_info.node, screen_len >> 10);
/* TODO: This driver cannot be unloaded yet */
return 0;
}
module_init(atafb_init);
#ifdef MODULE
MODULE_LICENSE("GPL");
int init_module(void)
int cleanup_module(void)
{
return atafb_init();
unregister_framebuffer(&fb_info);
return atafb_deinit();
}
#endif /* MODULE */
drivers/video/atafb.h 0 → 100644
浏览文件 @ a1005012
#ifndef _VIDEO_ATAFB_H
#define _VIDEO_ATAFB_H
void atafb_mfb_copyarea(struct fb_info *info, u_long next_line, int sy, int sx, int dy,
int dx, int height, int width);
void atafb_mfb_fillrect(struct fb_info *info, u_long next_line, u32 color,
int sy, int sx, int height, int width);
void atafb_mfb_linefill(struct fb_info *info, u_long next_line,
int dy, int dx, u32 width,
const u8 *data, u32 bgcolor, u32 fgcolor);
void atafb_iplan2p2_copyarea(struct fb_info *info, u_long next_line, int sy, int sx, int dy,
int dx, int height, int width);
void atafb_iplan2p2_fillrect(struct fb_info *info, u_long next_line, u32 color,
int sy, int sx, int height, int width);
void atafb_iplan2p2_linefill(struct fb_info *info, u_long next_line,
int dy, int dx, u32 width,
const u8 *data, u32 bgcolor, u32 fgcolor);
void atafb_iplan2p4_copyarea(struct fb_info *info, u_long next_line, int sy, int sx, int dy,
int dx, int height, int width);
void atafb_iplan2p4_fillrect(struct fb_info *info, u_long next_line, u32 color,
int sy, int sx, int height, int width);
void atafb_iplan2p4_linefill(struct fb_info *info, u_long next_line,
int dy, int dx, u32 width,
const u8 *data, u32 bgcolor, u32 fgcolor);
void atafb_iplan2p8_copyarea(struct fb_info *info, u_long next_line, int sy, int sx, int dy,
int dx, int height, int width);
void atafb_iplan2p8_fillrect(struct fb_info *info, u_long next_line, u32 color,
int sy, int sx, int height, int width);
void atafb_iplan2p8_linefill(struct fb_info *info, u_long next_line,
int dy, int dx, u32 width,
const u8 *data, u32 bgcolor, u32 fgcolor);
#endif /* _VIDEO_ATAFB_H */
drivers/video/atafb_iplan2p2.c 0 → 100644
浏览文件 @ a1005012
/*
* linux/drivers/video/iplan2p2.c -- Low level frame buffer operations for
* interleaved bitplanes à la Atari (2
* planes, 2 bytes interleave)
*
* Created 5 Apr 1997 by 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/module.h>
#include <linux/string.h>
#include <linux/fb.h>
#include <asm/setup.h>
#include "atafb.h"
#define BPL 2
#include "atafb_utils.h"
void atafb_iplan2p2_copyarea(struct fb_info *info, u_long next_line,
int sy, int sx, int dy, int dx,
int height, int width)
{
/* bmove() has to distinguish two major cases: If both, source and
* destination, start at even addresses or both are at odd
* addresses, just the first odd and last even column (if present)
* require special treatment (memmove_col()). The rest between
* then can be copied by normal operations, because all adjacent
* bytes are affected and are to be stored in the same order.
* The pathological case is when the move should go from an odd
* address to an even or vice versa. Since the bytes in the plane
* words must be assembled in new order, it seems wisest to make
* all movements by memmove_col().
*/
u8 *src, *dst;
u32 *s, *d;
int w, l , i, j;
u_int colsize;
u_int upwards = (dy < sy) || (dy == sy && dx < sx);
colsize = height;
if (!((sx ^ dx) & 15)) {
/* odd->odd or even->even */
if (upwards) {
src = (u8 *)info->screen_base + sy * next_line + (sx & ~15) / (8 / BPL);
dst = (u8 *)info->screen_base + dy * next_line + (dx & ~15) / (8 / BPL);
if (sx & 15) {
memmove32_col(dst, src, 0xff00ff, height, next_line - BPL * 2);
src += BPL * 2;
dst += BPL * 2;
width -= 8;
}
w = width >> 4;
if (w) {
s = (u32 *)src;
d = (u32 *)dst;
w *= BPL / 2;
l = next_line - w * 4;
for (j = height; j > 0; j--) {
for (i = w; i > 0; i--)
*d++ = *s++;
s = (u32 *)((u8 *)s + l);
d = (u32 *)((u8 *)d + l);
}
}
if (width & 15)
memmove32_col(dst + width / (8 / BPL), src + width / (8 / BPL),
0xff00ff00, height, next_line - BPL * 2);
} else {
src = (u8 *)info->screen_base + (sy - 1) * next_line + ((sx + width + 8) & ~15) / (8 / BPL);
dst = (u8 *)info->screen_base + (dy - 1) * next_line + ((dx + width + 8) & ~15) / (8 / BPL);
if ((sx + width) & 15) {
src -= BPL * 2;
dst -= BPL * 2;
memmove32_col(dst, src, 0xff00ff00, colsize, -next_line - BPL * 2);
width -= 8;
}
w = width >> 4;
if (w) {
s = (u32 *)src;
d = (u32 *)dst;
w *= BPL / 2;
l = next_line - w * 4;
for (j = height; j > 0; j--) {
for (i = w; i > 0; i--)
*--d = *--s;
s = (u32 *)((u8 *)s - l);
d = (u32 *)((u8 *)d - l);
}
}
if (sx & 15)
memmove32_col(dst - (width - 16) / (8 / BPL),
src - (width - 16) / (8 / BPL),
0xff00ff, colsize, -next_line - BPL * 2);
}
} else {
/* odd->even or even->odd */
if (upwards) {
u32 *src32, *dst32;
u32 pval[4], v, v1, mask;
int i, j, w, f;
src = (u8 *)info->screen_base + sy * next_line + (sx & ~15) / (8 / BPL);
dst = (u8 *)info->screen_base + dy * next_line + (dx & ~15) / (8 / BPL);
mask = 0xff00ff00;
f = 0;
w = width;
if (sx & 15) {
f = 1;
w += 8;
}
if ((sx + width) & 15)
f |= 2;
w >>= 4;
for (i = height; i; i--) {
src32 = (u32 *)src;
dst32 = (u32 *)dst;
if (f & 1) {
pval[0] = (*src32++ << 8) & mask;
} else {
pval[0] = dst32[0] & mask;
}
for (j = w; j > 0; j--) {
v = *src32++;
v1 = v & mask;
*dst32++ = pval[0] | (v1 >> 8);
pval[0] = (v ^ v1) << 8;
}
if (f & 2) {
dst32[0] = (dst32[0] & mask) | pval[0];
}
src += next_line;
dst += next_line;
}
} else {
u32 *src32, *dst32;
u32 pval[4], v, v1, mask;
int i, j, w, f;
src = (u8 *)info->screen_base + (sy - 1) * next_line + ((sx + width + 8) & ~15) / (8 / BPL);
dst = (u8 *)info->screen_base + (dy - 1) * next_line + ((dx + width + 8) & ~15) / (8 / BPL);
mask = 0xff00ff;
f = 0;
w = width;
if ((dx + width) & 15)
f = 1;
if (sx & 15) {
f |= 2;
w += 8;
}
w >>= 4;
for (i = height; i; i--) {
src32 = (u32 *)src;
dst32 = (u32 *)dst;
if (f & 1) {
pval[0] = dst32[-1] & mask;
} else {
pval[0] = (*--src32 >> 8) & mask;
}
for (j = w; j > 0; j--) {
v = *--src32;
v1 = v & mask;
*--dst32 = pval[0] | (v1 << 8);
pval[0] = (v ^ v1) >> 8;
}
if (!(f & 2)) {
dst32[-1] = (dst32[-1] & mask) | pval[0];
}
src -= next_line;
dst -= next_line;
}
}
}
}
void atafb_iplan2p2_fillrect(struct fb_info *info, u_long next_line, u32 color,
int sy, int sx, int height, int width)
{
u32 *dest;
int rows, i;
u32 cval[4];
dest = (u32 *)(info->screen_base + sy * next_line + (sx & ~15) / (8 / BPL));
if (sx & 15) {
u8 *dest8 = (u8 *)dest + 1;
expand8_col2mask(color, cval);
for (i = height; i; i--) {
fill8_col(dest8, cval);
dest8 += next_line;
}
dest += BPL / 2;
width -= 8;
}
expand16_col2mask(color, cval);
rows = width >> 4;
if (rows) {
u32 *d = dest;
u32 off = next_line - rows * BPL * 2;
for (i = height; i; i--) {
d = fill16_col(d, rows, cval);
d = (u32 *)((long)d + off);
}
dest += rows * BPL / 2;
width &= 15;
}
if (width) {
u8 *dest8 = (u8 *)dest;
expand8_col2mask(color, cval);
for (i = height; i; i--) {
fill8_col(dest8, cval);
dest8 += next_line;
}
}
}
void atafb_iplan2p2_linefill(struct fb_info *info, u_long next_line,
int dy, int dx, u32 width,
const u8 *data, u32 bgcolor, u32 fgcolor)
{
u32 *dest;
const u16 *data16;
int rows;
u32 fgm[4], bgm[4], m;
dest = (u32 *)(info->screen_base + dy * next_line + (dx & ~15) / (8 / BPL));
if (dx & 15) {
fill8_2col((u8 *)dest + 1, fgcolor, bgcolor, *data++);
dest += BPL / 2;
width -= 8;
}
if (width >= 16) {
data16 = (const u16 *)data;
expand16_2col2mask(fgcolor, bgcolor, fgm, bgm);
for (rows = width / 16; rows; rows--) {
u16 d = *data16++;
m = d | ((u32)d << 16);
*dest++ = (m & fgm[0]) ^ bgm[0];
}
data = (const u8 *)data16;
width &= 15;
}
if (width)
fill8_2col((u8 *)dest, fgcolor, bgcolor, *data);
}
#ifdef MODULE
MODULE_LICENSE("GPL");
int init_module(void)
{
return 0;
}
void cleanup_module(void)
{
}
#endif /* MODULE */
/*
* Visible symbols for modules
*/
EXPORT_SYMBOL(atafb_iplan2p2_copyarea);
EXPORT_SYMBOL(atafb_iplan2p2_fillrect);
EXPORT_SYMBOL(atafb_iplan2p2_linefill);
drivers/video/atafb_iplan2p4.c 0 → 100644
浏览文件 @ a1005012
/*
* linux/drivers/video/iplan2p4.c -- Low level frame buffer operations for
* interleaved bitplanes à la Atari (4
* planes, 2 bytes interleave)
*
* Created 5 Apr 1997 by 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/module.h>
#include <linux/string.h>
#include <linux/fb.h>
#include <asm/setup.h>
#include "atafb.h"
#define BPL 4
#include "atafb_utils.h"
void atafb_iplan2p4_copyarea(struct fb_info *info, u_long next_line,
int sy, int sx, int dy, int dx,
int height, int width)
{
/* bmove() has to distinguish two major cases: If both, source and
* destination, start at even addresses or both are at odd
* addresses, just the first odd and last even column (if present)
* require special treatment (memmove_col()). The rest between
* then can be copied by normal operations, because all adjacent
* bytes are affected and are to be stored in the same order.
* The pathological case is when the move should go from an odd
* address to an even or vice versa. Since the bytes in the plane
* words must be assembled in new order, it seems wisest to make
* all movements by memmove_col().
*/
u8 *src, *dst;
u32 *s, *d;
int w, l , i, j;
u_int colsize;
u_int upwards = (dy < sy) || (dy == sy && dx < sx);
colsize = height;
if (!((sx ^ dx) & 15)) {
/* odd->odd or even->even */
if (upwards) {
src = (u8 *)info->screen_base + sy * next_line + (sx & ~15) / (8 / BPL);
dst = (u8 *)info->screen_base + dy * next_line + (dx & ~15) / (8 / BPL);
if (sx & 15) {
memmove32_col(dst, src, 0xff00ff, height, next_line - BPL * 2);
src += BPL * 2;
dst += BPL * 2;
width -= 8;
}
w = width >> 4;
if (w) {
s = (u32 *)src;
d = (u32 *)dst;
w *= BPL / 2;
l = next_line - w * 4;
for (j = height; j > 0; j--) {
for (i = w; i > 0; i--)
*d++ = *s++;
s = (u32 *)((u8 *)s + l);
d = (u32 *)((u8 *)d + l);
}
}
if (width & 15)
memmove32_col(dst + width / (8 / BPL), src + width / (8 / BPL),
0xff00ff00, height, next_line - BPL * 2);
} else {
src = (u8 *)info->screen_base + (sy - 1) * next_line + ((sx + width + 8) & ~15) / (8 / BPL);
dst = (u8 *)info->screen_base + (dy - 1) * next_line + ((dx + width + 8) & ~15) / (8 / BPL);
if ((sx + width) & 15) {
src -= BPL * 2;
dst -= BPL * 2;
memmove32_col(dst, src, 0xff00ff00, colsize, -next_line - BPL * 2);
width -= 8;
}
w = width >> 4;
if (w) {
s = (u32 *)src;
d = (u32 *)dst;
w *= BPL / 2;
l = next_line - w * 4;
for (j = height; j > 0; j--) {
for (i = w; i > 0; i--)
*--d = *--s;
s = (u32 *)((u8 *)s - l);
d = (u32 *)((u8 *)d - l);
}
}
if (sx & 15)
memmove32_col(dst - (width - 16) / (8 / BPL),
src - (width - 16) / (8 / BPL),
0xff00ff, colsize, -next_line - BPL * 2);
}
} else {
/* odd->even or even->odd */
if (upwards) {
u32 *src32, *dst32;
u32 pval[4], v, v1, mask;
int i, j, w, f;
src = (u8 *)info->screen_base + sy * next_line + (sx & ~15) / (8 / BPL);
dst = (u8 *)info->screen_base + dy * next_line + (dx & ~15) / (8 / BPL);
mask = 0xff00ff00;
f = 0;
w = width;
if (sx & 15) {
f = 1;
w += 8;
}
if ((sx + width) & 15)
f |= 2;
w >>= 4;
for (i = height; i; i--) {
src32 = (u32 *)src;
dst32 = (u32 *)dst;
if (f & 1) {
pval[0] = (*src32++ << 8) & mask;
pval[1] = (*src32++ << 8) & mask;
} else {
pval[0] = dst32[0] & mask;
pval[1] = dst32[1] & mask;
}
for (j = w; j > 0; j--) {
v = *src32++;
v1 = v & mask;
*dst32++ = pval[0] | (v1 >> 8);
pval[0] = (v ^ v1) << 8;
v = *src32++;
v1 = v & mask;
*dst32++ = pval[1] | (v1 >> 8);
pval[1] = (v ^ v1) << 8;
}
if (f & 2) {
dst32[0] = (dst32[0] & mask) | pval[0];
dst32[1] = (dst32[1] & mask) | pval[1];
}
src += next_line;
dst += next_line;
}
} else {
u32 *src32, *dst32;
u32 pval[4], v, v1, mask;
int i, j, w, f;
src = (u8 *)info->screen_base + (sy - 1) * next_line + ((sx + width + 8) & ~15) / (8 / BPL);
dst = (u8 *)info->screen_base + (dy - 1) * next_line + ((dx + width + 8) & ~15) / (8 / BPL);
mask = 0xff00ff;
f = 0;
w = width;
if ((dx + width) & 15)
f = 1;
if (sx & 15) {
f |= 2;
w += 8;
}
w >>= 4;
for (i = height; i; i--) {
src32 = (u32 *)src;
dst32 = (u32 *)dst;
if (f & 1) {
pval[0] = dst32[-1] & mask;
pval[1] = dst32[-2] & mask;
} else {
pval[0] = (*--src32 >> 8) & mask;
pval[1] = (*--src32 >> 8) & mask;
}
for (j = w; j > 0; j--) {
v = *--src32;
v1 = v & mask;
*--dst32 = pval[0] | (v1 << 8);
pval[0] = (v ^ v1) >> 8;
v = *--src32;
v1 = v & mask;
*--dst32 = pval[1] | (v1 << 8);
pval[1] = (v ^ v1) >> 8;
}
if (!(f & 2)) {
dst32[-1] = (dst32[-1] & mask) | pval[0];
dst32[-2] = (dst32[-2] & mask) | pval[1];
}
src -= next_line;
dst -= next_line;
}
}
}
}
void atafb_iplan2p4_fillrect(struct fb_info *info, u_long next_line, u32 color,
int sy, int sx, int height, int width)
{
u32 *dest;
int rows, i;
u32 cval[4];
dest = (u32 *)(info->screen_base + sy * next_line + (sx & ~15) / (8 / BPL));
if (sx & 15) {
u8 *dest8 = (u8 *)dest + 1;
expand8_col2mask(color, cval);
for (i = height; i; i--) {
fill8_col(dest8, cval);
dest8 += next_line;
}
dest += BPL / 2;
width -= 8;
}
expand16_col2mask(color, cval);
rows = width >> 4;
if (rows) {
u32 *d = dest;
u32 off = next_line - rows * BPL * 2;
for (i = height; i; i--) {
d = fill16_col(d, rows, cval);
d = (u32 *)((long)d + off);
}
dest += rows * BPL / 2;
width &= 15;
}
if (width) {
u8 *dest8 = (u8 *)dest;
expand8_col2mask(color, cval);
for (i = height; i; i--) {
fill8_col(dest8, cval);
dest8 += next_line;
}
}
}
void atafb_iplan2p4_linefill(struct fb_info *info, u_long next_line,
int dy, int dx, u32 width,
const u8 *data, u32 bgcolor, u32 fgcolor)
{
u32 *dest;
const u16 *data16;
int rows;
u32 fgm[4], bgm[4], m;
dest = (u32 *)(info->screen_base + dy * next_line + (dx & ~15) / (8 / BPL));
if (dx & 15) {
fill8_2col((u8 *)dest + 1, fgcolor, bgcolor, *data++);
dest += BPL / 2;
width -= 8;
}
if (width >= 16) {
data16 = (const u16 *)data;
expand16_2col2mask(fgcolor, bgcolor, fgm, bgm);
for (rows = width / 16; rows; rows--) {
u16 d = *data16++;
m = d | ((u32)d << 16);
*dest++ = (m & fgm[0]) ^ bgm[0];
*dest++ = (m & fgm[1]) ^ bgm[1];
}
data = (const u8 *)data16;
width &= 15;
}
if (width)
fill8_2col((u8 *)dest, fgcolor, bgcolor, *data);
}
#ifdef MODULE
MODULE_LICENSE("GPL");
int init_module(void)
{
return 0;
}
void cleanup_module(void)
{
}
#endif /* MODULE */
/*
* Visible symbols for modules
*/
EXPORT_SYMBOL(atafb_iplan2p4_copyarea);
EXPORT_SYMBOL(atafb_iplan2p4_fillrect);
EXPORT_SYMBOL(atafb_iplan2p4_linefill);
drivers/video/atafb_iplan2p8.c 0 → 100644
浏览文件 @ a1005012
/*
* linux/drivers/video/iplan2p8.c -- Low level frame buffer operations for
* interleaved bitplanes à la Atari (8
* planes, 2 bytes interleave)
*
* Created 5 Apr 1997 by 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/module.h>
#include <linux/string.h>
#include <linux/fb.h>
#include <asm/setup.h>
#include "atafb.h"
#define BPL 8
#include "atafb_utils.h"
/* Copies a 8 plane column from 's', height 'h', to 'd'. */
/* This expands a 8 bit color into two longs for two movepl (8 plane)
* operations.
*/
void atafb_iplan2p8_copyarea(struct fb_info *info, u_long next_line,
int sy, int sx, int dy, int dx,
int height, int width)
{
/* bmove() has to distinguish two major cases: If both, source and
* destination, start at even addresses or both are at odd
* addresses, just the first odd and last even column (if present)
* require special treatment (memmove_col()). The rest between
* then can be copied by normal operations, because all adjacent
* bytes are affected and are to be stored in the same order.
* The pathological case is when the move should go from an odd
* address to an even or vice versa. Since the bytes in the plane
* words must be assembled in new order, it seems wisest to make
* all movements by memmove_col().
*/
u8 *src, *dst;
u32 *s, *d;
int w, l , i, j;
u_int colsize;
u_int upwards = (dy < sy) || (dy == sy && dx < sx);
colsize = height;
if (!((sx ^ dx) & 15)) {
/* odd->odd or even->even */
if (upwards) {
src = (u8 *)info->screen_base + sy * next_line + (sx & ~15) / (8 / BPL);
dst = (u8 *)info->screen_base + dy * next_line + (dx & ~15) / (8 / BPL);
if (sx & 15) {
memmove32_col(dst, src, 0xff00ff, height, next_line - BPL * 2);
src += BPL * 2;
dst += BPL * 2;
width -= 8;
}
w = width >> 4;
if (w) {
s = (u32 *)src;
d = (u32 *)dst;
w *= BPL / 2;
l = next_line - w * 4;
for (j = height; j > 0; j--) {
for (i = w; i > 0; i--)
*d++ = *s++;
s = (u32 *)((u8 *)s + l);
d = (u32 *)((u8 *)d + l);
}
}
if (width & 15)
memmove32_col(dst + width / (8 / BPL), src + width / (8 / BPL),
0xff00ff00, height, next_line - BPL * 2);
} else {
src = (u8 *)info->screen_base + (sy - 1) * next_line + ((sx + width + 8) & ~15) / (8 / BPL);
dst = (u8 *)info->screen_base + (dy - 1) * next_line + ((dx + width + 8) & ~15) / (8 / BPL);
if ((sx + width) & 15) {
src -= BPL * 2;
dst -= BPL * 2;
memmove32_col(dst, src, 0xff00ff00, colsize, -next_line - BPL * 2);
width -= 8;
}
w = width >> 4;
if (w) {
s = (u32 *)src;
d = (u32 *)dst;
w *= BPL / 2;
l = next_line - w * 4;
for (j = height; j > 0; j--) {
for (i = w; i > 0; i--)
*--d = *--s;
s = (u32 *)((u8 *)s - l);
d = (u32 *)((u8 *)d - l);
}
}
if (sx & 15)
memmove32_col(dst - (width - 16) / (8 / BPL),
src - (width - 16) / (8 / BPL),
0xff00ff, colsize, -next_line - BPL * 2);
}
} else {
/* odd->even or even->odd */
if (upwards) {
u32 *src32, *dst32;
u32 pval[4], v, v1, mask;
int i, j, w, f;
src = (u8 *)info->screen_base + sy * next_line + (sx & ~15) / (8 / BPL);
dst = (u8 *)info->screen_base + dy * next_line + (dx & ~15) / (8 / BPL);
mask = 0xff00ff00;
f = 0;
w = width;
if (sx & 15) {
f = 1;
w += 8;
}
if ((sx + width) & 15)
f |= 2;
w >>= 4;
for (i = height; i; i--) {
src32 = (u32 *)src;
dst32 = (u32 *)dst;
if (f & 1) {
pval[0] = (*src32++ << 8) & mask;
pval[1] = (*src32++ << 8) & mask;
pval[2] = (*src32++ << 8) & mask;
pval[3] = (*src32++ << 8) & mask;
} else {
pval[0] = dst32[0] & mask;
pval[1] = dst32[1] & mask;
pval[2] = dst32[2] & mask;
pval[3] = dst32[3] & mask;
}
for (j = w; j > 0; j--) {
v = *src32++;
v1 = v & mask;
*dst32++ = pval[0] | (v1 >> 8);
pval[0] = (v ^ v1) << 8;
v = *src32++;
v1 = v & mask;
*dst32++ = pval[1] | (v1 >> 8);
pval[1] = (v ^ v1) << 8;
v = *src32++;
v1 = v & mask;
*dst32++ = pval[2] | (v1 >> 8);
pval[2] = (v ^ v1) << 8;
v = *src32++;
v1 = v & mask;
*dst32++ = pval[3] | (v1 >> 8);
pval[3] = (v ^ v1) << 8;
}
if (f & 2) {
dst32[0] = (dst32[0] & mask) | pval[0];
dst32[1] = (dst32[1] & mask) | pval[1];
dst32[2] = (dst32[2] & mask) | pval[2];
dst32[3] = (dst32[3] & mask) | pval[3];
}
src += next_line;
dst += next_line;
}
} else {
u32 *src32, *dst32;
u32 pval[4], v, v1, mask;
int i, j, w, f;
src = (u8 *)info->screen_base + (sy - 1) * next_line + ((sx + width + 8) & ~15) / (8 / BPL);
dst = (u8 *)info->screen_base + (dy - 1) * next_line + ((dx + width + 8) & ~15) / (8 / BPL);
mask = 0xff00ff;
f = 0;
w = width;
if ((dx + width) & 15)
f = 1;
if (sx & 15) {
f |= 2;
w += 8;
}
w >>= 4;
for (i = height; i; i--) {
src32 = (u32 *)src;
dst32 = (u32 *)dst;
if (f & 1) {
pval[0] = dst32[-1] & mask;
pval[1] = dst32[-2] & mask;
pval[2] = dst32[-3] & mask;
pval[3] = dst32[-4] & mask;
} else {
pval[0] = (*--src32 >> 8) & mask;
pval[1] = (*--src32 >> 8) & mask;
pval[2] = (*--src32 >> 8) & mask;
pval[3] = (*--src32 >> 8) & mask;
}
for (j = w; j > 0; j--) {
v = *--src32;
v1 = v & mask;
*--dst32 = pval[0] | (v1 << 8);
pval[0] = (v ^ v1) >> 8;
v = *--src32;
v1 = v & mask;
*--dst32 = pval[1] | (v1 << 8);
pval[1] = (v ^ v1) >> 8;
v = *--src32;
v1 = v & mask;
*--dst32 = pval[2] | (v1 << 8);
pval[2] = (v ^ v1) >> 8;
v = *--src32;
v1 = v & mask;
*--dst32 = pval[3] | (v1 << 8);
pval[3] = (v ^ v1) >> 8;
}
if (!(f & 2)) {
dst32[-1] = (dst32[-1] & mask) | pval[0];
dst32[-2] = (dst32[-2] & mask) | pval[1];
dst32[-3] = (dst32[-3] & mask) | pval[2];
dst32[-4] = (dst32[-4] & mask) | pval[3];
}
src -= next_line;
dst -= next_line;
}
}
}
}
void atafb_iplan2p8_fillrect(struct fb_info *info, u_long next_line, u32 color,
int sy, int sx, int height, int width)
{
u32 *dest;
int rows, i;
u32 cval[4];
dest = (u32 *)(info->screen_base + sy * next_line + (sx & ~15) / (8 / BPL));
if (sx & 15) {
u8 *dest8 = (u8 *)dest + 1;
expand8_col2mask(color, cval);
for (i = height; i; i--) {
fill8_col(dest8, cval);
dest8 += next_line;
}
dest += BPL / 2;
width -= 8;
}
expand16_col2mask(color, cval);
rows = width >> 4;
if (rows) {
u32 *d = dest;
u32 off = next_line - rows * BPL * 2;
for (i = height; i; i--) {
d = fill16_col(d, rows, cval);
d = (u32 *)((long)d + off);
}
dest += rows * BPL / 2;
width &= 15;
}
if (width) {
u8 *dest8 = (u8 *)dest;
expand8_col2mask(color, cval);
for (i = height; i; i--) {
fill8_col(dest8, cval);
dest8 += next_line;
}
}
}
void atafb_iplan2p8_linefill(struct fb_info *info, u_long next_line,
int dy, int dx, u32 width,
const u8 *data, u32 bgcolor, u32 fgcolor)
{
u32 *dest;
const u16 *data16;
int rows;
u32 fgm[4], bgm[4], m;
dest = (u32 *)(info->screen_base + dy * next_line + (dx & ~15) / (8 / BPL));
if (dx & 15) {
fill8_2col((u8 *)dest + 1, fgcolor, bgcolor, *data++);
dest += BPL / 2;
width -= 8;
}
if (width >= 16) {
data16 = (const u16 *)data;
expand16_2col2mask(fgcolor, bgcolor, fgm, bgm);
for (rows = width / 16; rows; rows--) {
u16 d = *data16++;
m = d | ((u32)d << 16);
*dest++ = (m & fgm[0]) ^ bgm[0];
*dest++ = (m & fgm[1]) ^ bgm[1];
*dest++ = (m & fgm[2]) ^ bgm[2];
*dest++ = (m & fgm[3]) ^ bgm[3];
}
data = (const u8 *)data16;
width &= 15;
}
if (width)
fill8_2col((u8 *)dest, fgcolor, bgcolor, *data);
}
#ifdef MODULE
MODULE_LICENSE("GPL");
int init_module(void)
{
return 0;
}
void cleanup_module(void)
{
}
#endif /* MODULE */
/*
* Visible symbols for modules
*/
EXPORT_SYMBOL(atafb_iplan2p8_copyarea);
EXPORT_SYMBOL(atafb_iplan2p8_fillrect);
EXPORT_SYMBOL(atafb_iplan2p8_linefill);
drivers/video/atafb_mfb.c 0 → 100644
浏览文件 @ a1005012
/*
* linux/drivers/video/mfb.c -- Low level frame buffer operations for
* monochrome
*
* Created 5 Apr 1997 by 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/module.h>
#include <linux/string.h>
#include <linux/fb.h>
#include "atafb.h"
#include "atafb_utils.h"
/*
* Monochrome
*/
void atafb_mfb_copyarea(struct fb_info *info, u_long next_line,
int sy, int sx, int dy, int dx,
int height, int width)
{
u8 *src, *dest;
u_int rows;
if (sx == 0 && dx == 0 && width == next_line) {
src = (u8 *)info->screen_base + sy * (width >> 3);
dest = (u8 *)info->screen_base + dy * (width >> 3);
fb_memmove(dest, src, height * (width >> 3));
} else if (dy <= sy) {
src = (u8 *)info->screen_base + sy * next_line + (sx >> 3);
dest = (u8 *)info->screen_base + dy * next_line + (dx >> 3);
for (rows = height; rows--;) {
fb_memmove(dest, src, width >> 3);
src += next_line;
dest += next_line;
}
} else {
src = (u8 *)info->screen_base + (sy + height - 1) * next_line + (sx >> 3);
dest = (u8 *)info->screen_base + (dy + height - 1) * next_line + (dx >> 3);
for (rows = height; rows--;) {
fb_memmove(dest, src, width >> 3);
src -= next_line;
dest -= next_line;
}
}
}
void atafb_mfb_fillrect(struct fb_info *info, u_long next_line, u32 color,
int sy, int sx, int height, int width)
{
u8 *dest;
u_int rows;
dest = (u8 *)info->screen_base + sy * next_line + (sx >> 3);
if (sx == 0 && width == next_line) {
if (color)
fb_memset255(dest, height * (width >> 3));
else
fb_memclear(dest, height * (width >> 3));
} else {
for (rows = height; rows--; dest += next_line) {
if (color)
fb_memset255(dest, width >> 3);
else
fb_memclear_small(dest, width >> 3);
}
}
}
void atafb_mfb_linefill(struct fb_info *info, u_long next_line,
int dy, int dx, u32 width,
const u8 *data, u32 bgcolor, u32 fgcolor)
{
u8 *dest;
u_int rows;
dest = (u8 *)info->screen_base + dy * next_line + (dx >> 3);
for (rows = width / 8; rows--; /* check margins */ ) {
// use fast_memmove or fb_memmove
*dest++ = *data++;
}
}
#ifdef MODULE
MODULE_LICENSE("GPL");
int init_module(void)
{
return 0;
}
void cleanup_module(void)
{
}
#endif /* MODULE */
/*
* Visible symbols for modules
*/
EXPORT_SYMBOL(atafb_mfb_copyarea);
EXPORT_SYMBOL(atafb_mfb_fillrect);
EXPORT_SYMBOL(atafb_mfb_linefill);
drivers/video/atafb_utils.h 0 → 100644
浏览文件 @ a1005012
#ifndef _VIDEO_ATAFB_UTILS_H
#define _VIDEO_ATAFB_UTILS_H
/* ================================================================= */
/* Utility Assembler Functions */
/* ================================================================= */
/* ====================================================================== */
/* Those of a delicate disposition might like to skip the next couple of
* pages.
*
* These functions are drop in replacements for memmove and
* memset(_, 0, _). However their five instances add at least a kilobyte
* to the object file. You have been warned.
*
* Not a great fan of assembler for the sake of it, but I think
* that these routines are at least 10 times faster than their C
* equivalents for large blits, and that's important to the lowest level of
* a graphics driver. Question is whether some scheme with the blitter
* would be faster. I suspect not for simple text system - not much
* asynchrony.
*
* Code is very simple, just gruesome expansion. Basic strategy is to
* increase data moved/cleared at each step to 16 bytes to reduce
* instruction per data move overhead. movem might be faster still
* For more than 15 bytes, we try to align the write direction on a
* longword boundary to get maximum speed. This is even more gruesome.
* Unaligned read/write used requires 68020+ - think this is a problem?
*
* Sorry!
*/
/* ++roman: I've optimized Robert's original versions in some minor
* aspects, e.g. moveq instead of movel, let gcc choose the registers,
* use movem in some places...
* For other modes than 1 plane, lots of more such assembler functions
* were needed (e.g. the ones using movep or expanding color values).
*/
/* ++andreas: more optimizations:
subl #65536,d0 replaced by clrw d0; subql #1,d0 for dbcc
addal is faster than addaw
movep is rather expensive compared to ordinary move's
some functions rewritten in C for clarity, no speed loss */
static inline void *fb_memclear_small(void *s, size_t count)
{
if (!count)
return 0;
asm volatile ("\n"
" lsr.l #1,%1 ; jcc 1f ; move.b %2,-(%0)\n"
"1: lsr.l #1,%1 ; jcc 1f ; move.w %2,-(%0)\n"
"1: lsr.l #1,%1 ; jcc 1f ; move.l %2,-(%0)\n"
"1: lsr.l #1,%1 ; jcc 1f ; move.l %2,-(%0) ; move.l %2,-(%0)\n"
"1:"
: "=a" (s), "=d" (count)
: "d" (0), "0" ((char *)s + count), "1" (count));
asm volatile ("\n"
" subq.l #1,%1\n"
" jcs 3f\n"
" move.l %2,%%d4; move.l %2,%%d5; move.l %2,%%d6\n"
"2: movem.l %2/%%d4/%%d5/%%d6,-(%0)\n"
" dbra %1,2b\n"
"3:"
: "=a" (s), "=d" (count)
: "d" (0), "0" (s), "1" (count)
: "d4", "d5", "d6"
);
return 0;
}
static inline void *fb_memclear(void *s, size_t count)
{
if (!count)
return 0;
if (count < 16) {
asm volatile ("\n"
" lsr.l #1,%1 ; jcc 1f ; clr.b (%0)+\n"
"1: lsr.l #1,%1 ; jcc 1f ; clr.w (%0)+\n"
"1: lsr.l #1,%1 ; jcc 1f ; clr.l (%0)+\n"
"1: lsr.l #1,%1 ; jcc 1f ; clr.l (%0)+ ; clr.l (%0)+\n"
"1:"
: "=a" (s), "=d" (count)
: "0" (s), "1" (count));
} else {
long tmp;
asm volatile ("\n"
" move.l %1,%2\n"
" lsr.l #1,%2 ; jcc 1f ; clr.b (%0)+ ; subq.w #1,%1\n"
" lsr.l #1,%2 ; jcs 2f\n" /* %0 increased=>bit 2 switched*/
" clr.w (%0)+ ; subq.w #2,%1 ; jra 2f\n"
"1: lsr.l #1,%2 ; jcc 2f\n"
" clr.w (%0)+ ; subq.w #2,%1\n"
"2: move.w %1,%2; lsr.l #2,%1 ; jeq 6f\n"
" lsr.l #1,%1 ; jcc 3f ; clr.l (%0)+\n"
"3: lsr.l #1,%1 ; jcc 4f ; clr.l (%0)+ ; clr.l (%0)+\n"
"4: subq.l #1,%1 ; jcs 6f\n"
"5: clr.l (%0)+; clr.l (%0)+ ; clr.l (%0)+ ; clr.l (%0)+\n"
" dbra %1,5b ; clr.w %1; subq.l #1,%1; jcc 5b\n"
"6: move.w %2,%1; btst #1,%1 ; jeq 7f ; clr.w (%0)+\n"
"7: btst #0,%1 ; jeq 8f ; clr.b (%0)+\n"
"8:"
: "=a" (s), "=d" (count), "=d" (tmp)
: "0" (s), "1" (count));
}
return 0;
}
static inline void *fb_memset255(void *s, size_t count)
{
if (!count)
return 0;
asm volatile ("\n"
" lsr.l #1,%1 ; jcc 1f ; move.b %2,-(%0)\n"
"1: lsr.l #1,%1 ; jcc 1f ; move.w %2,-(%0)\n"
"1: lsr.l #1,%1 ; jcc 1f ; move.l %2,-(%0)\n"
"1: lsr.l #1,%1 ; jcc 1f ; move.l %2,-(%0) ; move.l %2,-(%0)\n"
"1:"
: "=a" (s), "=d" (count)
: "d" (-1), "0" ((char *)s+count), "1" (count));
asm volatile ("\n"
" subq.l #1,%1 ; jcs 3f\n"
" move.l %2,%%d4; move.l %2,%%d5; move.l %2,%%d6\n"
"2: movem.l %2/%%d4/%%d5/%%d6,-(%0)\n"
" dbra %1,2b\n"
"3:"
: "=a" (s), "=d" (count)
: "d" (-1), "0" (s), "1" (count)
: "d4", "d5", "d6");
return 0;
}
static inline void *fb_memmove(void *d, const void *s, size_t count)
{
if (d < s) {
if (count < 16) {
asm volatile ("\n"
" lsr.l #1,%2 ; jcc 1f ; move.b (%1)+,(%0)+\n"
"1: lsr.l #1,%2 ; jcc 1f ; move.w (%1)+,(%0)+\n"
"1: lsr.l #1,%2 ; jcc 1f ; move.l (%1)+,(%0)+\n"
"1: lsr.l #1,%2 ; jcc 1f ; move.l (%1)+,(%0)+ ; move.l (%1)+,(%0)+\n"
"1:"
: "=a" (d), "=a" (s), "=d" (count)
: "0" (d), "1" (s), "2" (count));
} else {
long tmp;
asm volatile ("\n"
" move.l %0,%3\n"
" lsr.l #1,%3 ; jcc 1f ; move.b (%1)+,(%0)+ ; subqw #1,%2\n"
" lsr.l #1,%3 ; jcs 2f\n" /* %0 increased=>bit 2 switched*/
" move.w (%1)+,(%0)+ ; subqw #2,%2 ; jra 2f\n"
"1: lsr.l #1,%3 ; jcc 2f\n"
" move.w (%1)+,(%0)+ ; subqw #2,%2\n"
"2: move.w %2,%-; lsr.l #2,%2 ; jeq 6f\n"
" lsr.l #1,%2 ; jcc 3f ; move.l (%1)+,(%0)+\n"
"3: lsr.l #1,%2 ; jcc 4f ; move.l (%1)+,(%0)+ ; move.l (%1)+,(%0)+\n"
"4: subq.l #1,%2 ; jcs 6f\n"
"5: move.l (%1)+,(%0)+; move.l (%1)+,(%0)+\n"
" move.l (%1)+,(%0)+; move.l (%1)+,(%0)+\n"
" dbra %2,5b ; clr.w %2; subq.l #1,%2; jcc 5b\n"
"6: move.w %+,%2; btst #1,%2 ; jeq 7f ; move.w (%1)+,(%0)+\n"
"7: btst #0,%2 ; jeq 8f ; move.b (%1)+,(%0)+\n"
"8:"
: "=a" (d), "=a" (s), "=d" (count), "=d" (tmp)
: "0" (d), "1" (s), "2" (count));
}
} else {
if (count < 16) {
asm volatile ("\n"
" lsr.l #1,%2 ; jcc 1f ; move.b -(%1),-(%0)\n"
"1: lsr.l #1,%2 ; jcc 1f ; move.w -(%1),-(%0)\n"
"1: lsr.l #1,%2 ; jcc 1f ; move.l -(%1),-(%0)\n"
"1: lsr.l #1,%2 ; jcc 1f ; move.l -(%1),-(%0) ; move.l -(%1),-(%0)\n"
"1:"
: "=a" (d), "=a" (s), "=d" (count)
: "0" ((char *) d + count), "1" ((char *) s + count), "2" (count));
} else {
long tmp;
asm volatile ("\n"
" move.l %0,%3\n"
" lsr.l #1,%3 ; jcc 1f ; move.b -(%1),-(%0) ; subqw #1,%2\n"
" lsr.l #1,%3 ; jcs 2f\n" /* %0 increased=>bit 2 switched*/
" move.w -(%1),-(%0) ; subqw #2,%2 ; jra 2f\n"
"1: lsr.l #1,%3 ; jcc 2f\n"
" move.w -(%1),-(%0) ; subqw #2,%2\n"
"2: move.w %2,%-; lsr.l #2,%2 ; jeq 6f\n"
" lsr.l #1,%2 ; jcc 3f ; move.l -(%1),-(%0)\n"
"3: lsr.l #1,%2 ; jcc 4f ; move.l -(%1),-(%0) ; move.l -(%1),-(%0)\n"
"4: subq.l #1,%2 ; jcs 6f\n"
"5: move.l -(%1),-(%0); move.l -(%1),-(%0)\n"
" move.l -(%1),-(%0); move.l -(%1),-(%0)\n"
" dbra %2,5b ; clr.w %2; subq.l #1,%2; jcc 5b\n"
"6: move.w %+,%2; btst #1,%2 ; jeq 7f ; move.w -(%1),-(%0)\n"
"7: btst #0,%2 ; jeq 8f ; move.b -(%1),-(%0)\n"
"8:"
: "=a" (d), "=a" (s), "=d" (count), "=d" (tmp)
: "0" ((char *) d + count), "1" ((char *) s + count), "2" (count));
}
}
return 0;
}
/* ++andreas: Simple and fast version of memmove, assumes size is
divisible by 16, suitable for moving the whole screen bitplane */
static inline void fast_memmove(char *dst, const char *src, size_t size)
{
if (!size)
return;
if (dst < src)
asm volatile ("\n"
"1: movem.l (%0)+,%%d0/%%d1/%%a0/%%a1\n"
" movem.l %%d0/%%d1/%%a0/%%a1,%1@\n"
" addq.l #8,%1; addq.l #8,%1\n"
" dbra %2,1b\n"
" clr.w %2; subq.l #1,%2\n"
" jcc 1b"
: "=a" (src), "=a" (dst), "=d" (size)
: "0" (src), "1" (dst), "2" (size / 16 - 1)
: "d0", "d1", "a0", "a1", "memory");
else
asm volatile ("\n"
"1: subq.l #8,%0; subq.l #8,%0\n"
" movem.l %0@,%%d0/%%d1/%%a0/%%a1\n"
" movem.l %%d0/%%d1/%%a0/%%a1,-(%1)\n"
" dbra %2,1b\n"
" clr.w %2; subq.l #1,%2\n"
" jcc 1b"
: "=a" (src), "=a" (dst), "=d" (size)
: "0" (src + size), "1" (dst + size), "2" (size / 16 - 1)
: "d0", "d1", "a0", "a1", "memory");
}
#ifdef BPL
/*
* This expands a up to 8 bit color into two longs
* for movel operations.
*/
static const u32 four2long[] = {
0x00000000, 0x000000ff, 0x0000ff00, 0x0000ffff,
0x00ff0000, 0x00ff00ff, 0x00ffff00, 0x00ffffff,
0xff000000, 0xff0000ff, 0xff00ff00, 0xff00ffff,
0xffff0000, 0xffff00ff, 0xffffff00, 0xffffffff,
};
static inline void expand8_col2mask(u8 c, u32 m[])
{
m[0] = four2long[c & 15];
#if BPL > 4
m[1] = four2long[c >> 4];
#endif
}
static inline void expand8_2col2mask(u8 fg, u8 bg, u32 fgm[], u32 bgm[])
{
fgm[0] = four2long[fg & 15] ^ (bgm[0] = four2long[bg & 15]);
#if BPL > 4
fgm[1] = four2long[fg >> 4] ^ (bgm[1] = four2long[bg >> 4]);
#endif
}
/*
* set an 8bit value to a color
*/
static inline void fill8_col(u8 *dst, u32 m[])
{
u32 tmp = m[0];
dst[0] = tmp;
dst[2] = (tmp >>= 8);
#if BPL > 2
dst[4] = (tmp >>= 8);
dst[6] = tmp >> 8;
#endif
#if BPL > 4
tmp = m[1];
dst[8] = tmp;
dst[10] = (tmp >>= 8);
dst[12] = (tmp >>= 8);
dst[14] = tmp >> 8;
#endif
}
/*
* set an 8bit value according to foreground/background color
*/
static inline void fill8_2col(u8 *dst, u8 fg, u8 bg, u32 mask)
{
u32 fgm[2], bgm[2], tmp;
expand8_2col2mask(fg, bg, fgm, bgm);
mask |= mask << 8;
#if BPL > 2
mask |= mask << 16;
#endif
tmp = (mask & fgm[0]) ^ bgm[0];
dst[0] = tmp;
dst[2] = (tmp >>= 8);
#if BPL > 2
dst[4] = (tmp >>= 8);
dst[6] = tmp >> 8;
#endif
#if BPL > 4
tmp = (mask & fgm[1]) ^ bgm[1];
dst[8] = tmp;
dst[10] = (tmp >>= 8);
dst[12] = (tmp >>= 8);
dst[14] = tmp >> 8;
#endif
}
static const u32 two2word[] = {
0x00000000, 0xffff0000, 0x0000ffff, 0xffffffff
};
static inline void expand16_col2mask(u8 c, u32 m[])
{
m[0] = two2word[c & 3];
#if BPL > 2
m[1] = two2word[(c >> 2) & 3];
#endif
#if BPL > 4
m[2] = two2word[(c >> 4) & 3];
m[3] = two2word[c >> 6];
#endif
}
static inline void expand16_2col2mask(u8 fg, u8 bg, u32 fgm[], u32 bgm[])
{
bgm[0] = two2word[bg & 3];
fgm[0] = two2word[fg & 3] ^ bgm[0];
#if BPL > 2
bgm[1] = two2word[(bg >> 2) & 3];
fgm[1] = two2word[(fg >> 2) & 3] ^ bgm[1];
#endif
#if BPL > 4
bgm[2] = two2word[(bg >> 4) & 3];
fgm[2] = two2word[(fg >> 4) & 3] ^ bgm[2];
bgm[3] = two2word[bg >> 6];
fgm[3] = two2word[fg >> 6] ^ bgm[3];
#endif
}
static inline u32 *fill16_col(u32 *dst, int rows, u32 m[])
{
while (rows) {
*dst++ = m[0];
#if BPL > 2
*dst++ = m[1];
#endif
#if BPL > 4
*dst++ = m[2];
*dst++ = m[3];
#endif
rows--;
}
return dst;
}
static inline void memmove32_col(void *dst, void *src, u32 mask, u32 h, u32 bytes)
{
u32 *s, *d, v;
s = src;
d = dst;
do {
v = (*s++ & mask) | (*d & ~mask);
*d++ = v;
#if BPL > 2
v = (*s++ & mask) | (*d & ~mask);
*d++ = v;
#endif
#if BPL > 4
v = (*s++ & mask) | (*d & ~mask);
*d++ = v;
v = (*s++ & mask) | (*d & ~mask);
*d++ = v;
#endif
d = (u32 *)((u8 *)d + bytes);
s = (u32 *)((u8 *)s + bytes);
} while (--h);
}
#endif
#endif /* _VIDEO_ATAFB_UTILS_H */
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