patch-2.4.7 linux/drivers/video/dcfb.c

• Lines: 505
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.4.6/linux/drivers/video/dcfb.c
• Orig date: Sun May 20 12:11:39 2001

diff -u --recursive --new-file v2.4.6/linux/drivers/video/dcfb.c linux/drivers/video/dcfb.c
@@ -1,504 +0,0 @@
-/*
- *	$Id: dcfb.c,v 1.1 2001/04/01 15:02:51 yaegashi Exp $
- *	SEGA Dreamcast framebuffer
- */
- 
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/tty.h>
-#include <linux/malloc.h>
-#include <linux/delay.h>
-#include <linux/nubus.h>
-#include <linux/init.h>
-
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/io.h>
-
-#include <linux/fb.h>
-
-#include <video/fbcon.h>
-#include <video/fbcon-cfb16.h>
-#include <video/fbcon-cfb32.h>
-
-#define BORDERRGB	0xa05f8040
-#define DISPLAYMODE	0xa05f8044
-#define ALPHAMODE	0xa05f8048
-#define DISPLAYALIGN	0xa05f804c
-#define BASEOFFSET1	0xa05f8050
-#define BASEOFFSET2	0xa05f8054
-#define DISPLAYSIZE	0xa05f805c
-#define SYNCMODE	0xa05f80d0
-#define VERTICALRANGE	0xa05f80dc
-#define HORIZPOSITION	0xa05f80ec
-#define VERTPOSITION	0xa05f80f0
-#define PALETTEMODE	0xa05f8108
-#define VIDEOOUTPUT	0xa0702c00
-
-static unsigned long dc_parm_vga_16bpp[] = {
-    DISPLAYMODE,	0x00800005,
-    BASEOFFSET1,	0,
-    BASEOFFSET2,	640*2,
-    DISPLAYSIZE,	(1<<20)+((480-1)<<10)+(640*2/4-1),
-    SYNCMODE,		0x100,
-    VERTPOSITION,	0x00230023,
-    VERTICALRANGE,	0x00280208,
-    HORIZPOSITION,	0x00000090,
-    VIDEOOUTPUT,	0,
-    0, 0,
-};
-    
-static unsigned long dc_parm_vga_32bpp[] = {
-    DISPLAYMODE,	0x0080000d,
-    BASEOFFSET1,	0,
-    BASEOFFSET2,	640*4,
-    DISPLAYSIZE,	(1<<20)+((480-1)<<10)+(640*4/4-1),
-    SYNCMODE,		0x100,
-    VERTPOSITION,	0x00230023,
-    VERTICALRANGE,	0x00280208,
-    HORIZPOSITION,	0x00000090,
-    VIDEOOUTPUT,	0,
-    0, 0,
-};
-
-static unsigned long *dc_parm_vga[] = {
-    dc_parm_vga_16bpp,
-    dc_parm_vga_32bpp,
-};
-
-static unsigned long dc_parm_composite_16bpp[] = {
-    DISPLAYMODE,	0x00000005,
-    BASEOFFSET1,	0,
-    BASEOFFSET2,	640*2,
-    DISPLAYSIZE,	((640*2/4+1)<<20)+((240-1)<<10)+(640*2/4-1),
-    SYNCMODE,		0x150,
-    VERTPOSITION,	0x00120012,
-    VERTICALRANGE,	0x00240204,
-    HORIZPOSITION,	0x000000a4,
-    VIDEOOUTPUT,	0x300,
-    0, 0,
-};
-    
-static unsigned long dc_parm_composite_32bpp[] = {
-    DISPLAYMODE,	0x0000000d,
-    BASEOFFSET1,	0,
-    BASEOFFSET2,	640*4,
-    DISPLAYSIZE,	((640*4/4+1)<<20)+((240-1)<<10)+(640*4/4-1),
-    SYNCMODE,		0x150,
-    VERTPOSITION,	0x00120012,
-    VERTICALRANGE,	0x00240204,
-    HORIZPOSITION,	0x000000a4,
-    VIDEOOUTPUT,	0x300,
-    0, 0,
-};
-
-static unsigned long *dc_parm_composite[] = {
-    dc_parm_composite_16bpp,
-    dc_parm_composite_32bpp,
-};
-
-static unsigned long dc_parm_interlace_16bpp[] = {
-    DISPLAYMODE,	0x00000005,
-    BASEOFFSET1,	0,
-    BASEOFFSET2,	640*2,
-    DISPLAYSIZE,	((640*2/4+1)<<20)+((240-1)<<10)+(640*2/4-1),
-    SYNCMODE,		0x150,
-    VERTPOSITION,	0x00120012,
-    VERTICALRANGE,	0x00240204,
-    HORIZPOSITION,	0x000000a4,
-    VIDEOOUTPUT,	0,
-    0, 0,
-};
-    
-static unsigned long dc_parm_interlace_32bpp[] = {
-    DISPLAYMODE,	0x0000000d,
-    BASEOFFSET1,	0,
-    BASEOFFSET2,	640*4,
-    DISPLAYSIZE,	((640*4/4+1)<<20)+((240-1)<<10)+(640*4/4-1),
-    SYNCMODE,		0x150,
-    VERTPOSITION,	0x00120012,
-    VERTICALRANGE,	0x00240204,
-    HORIZPOSITION,	0x000000a4,
-    VIDEOOUTPUT,	0,
-    0, 0,
-};
-
-static unsigned long *dc_parm_interlace[] = {
-    dc_parm_interlace_16bpp,
-    dc_parm_interlace_32bpp,
-};
-
-struct dcfb_info {
-    struct fb_info_gen gen;
-};
-
-struct dcfb_par
-{
-    int x, y;
-    int bpp;
-};
-
-static struct dcfb_info fb_info;
-static struct dcfb_par current_par;
-static int current_par_valid = 0;
-static struct display disp;
-
-static union {
-#ifdef FBCON_HAS_CFB16
-    u16 cfb16[16];
-#endif
-#ifdef FBCON_HAS_CFB32
-    u32 cfb32[16];
-#endif
-} fbcon_cmap;
-
-static unsigned long **dc_parms;
-static unsigned long dc_videobase, dc_videosize;
-static struct fb_var_screeninfo default_var;
-
-int dcfb_init(void);
-
-static void dcfb_set_par(struct dcfb_par *par, const struct fb_info *info);
-static void dcfb_encode_var(struct fb_var_screeninfo *var, 
-			      struct dcfb_par *par,
-			      const struct fb_info *info);
-
-
-/*
- *	Check cable type.
- *	0: VGA, 2: RGB, 3: Composite
- */
-
-#define	PCTRA	0xff80002c
-#define PDTRA	0xff800030
-
-static int dcfb_cable_check(void)
-{
-    unsigned long temp = ctrl_inl(PCTRA);
-    temp &= 0xfff0ffff;
-    temp |= 0x000a0000;
-    ctrl_outl(temp, PCTRA);
-    return (ctrl_inw(PDTRA)>>8)&3;
-}
-
-static void dcfb_detect(void)
-{
-    struct dcfb_par par;
-    int cable = dcfb_cable_check();
-    unsigned long **parm_list[4] = {
-	dc_parm_vga, dc_parm_vga, dc_parm_interlace, dc_parm_composite,
-    };
-    char *cable_name[] = { "VGA", "VGA", "Interlace", "Composite", };
-
-    dc_videobase = 0xa5000000;
-    dc_videosize = 0x00200000;
-
-    par.x = 640;
-    par.y = 480;
-    par.bpp = 32;
-    dc_parms = parm_list[cable];
-    printk(KERN_INFO "Dreamcast video cable detected: %s.\n", cable_name[cable]);
-
-    dcfb_set_par(&par, NULL);
-    dcfb_encode_var(&default_var, &par, NULL);
-}
-
-static int dcfb_encode_fix(struct fb_fix_screeninfo *fix,
-			    struct dcfb_par *par,
-			    const struct fb_info *info)
-{
-    memset(fix, 0, sizeof(struct fb_fix_screeninfo));
-
-    strcpy(fix->id, "SEGA Dreamcast");
-    fix->smem_start = dc_videobase;
-    fix->smem_len = dc_videosize;
-    fix->type = FB_TYPE_PACKED_PIXELS;
-    fix->type_aux = 0;
-    fix->visual = FB_VISUAL_TRUECOLOR;
-    fix->xpanstep = 0;
-    fix->ypanstep = 0;
-    fix->ywrapstep = 0;
-
-    switch(par->bpp) {
-    default:
-    case 16:
-	fix->line_length = par->x*2;
-	break;
-    case 32:
-	fix->line_length = par->x*4;
-	break;
-    }
-
-    return 0;
-}
-
-
-static int dcfb_decode_var(struct fb_var_screeninfo *var,
-			    struct dcfb_par *par,
-			    const struct fb_info *info)
-{
-    par->x = var->xres;
-    par->y = var->yres;
-    par->bpp = var->bits_per_pixel;
-    return 0;
-}
-
-
-static void dcfb_encode_var(struct fb_var_screeninfo *var, 
-			     struct dcfb_par *par,
-			     const struct fb_info *info)
-{
-    memset(var, 0, sizeof(*var));
-
-    var->xres = par->x;
-    var->yres = par->y;
-    var->xres_virtual = var->xres;
-    var->yres_virtual = var->yres;
-    var->xoffset = 0;
-    var->yoffset = 0;
-    var->bits_per_pixel = par->bpp;
-    var->grayscale = 0;
-    var->transp.offset = 0;
-    var->transp.length = 0;
-    var->transp.msb_right = 0;
-    var->nonstd = 0;
-    var->activate = 0;
-    var->height = -1;
-    var->width = -1;
-    var->vmode = FB_VMODE_NONINTERLACED;
-    var->pixclock = 0;
-    var->sync = 0;
-    var->left_margin = 0;
-    var->right_margin = 0;
-    var->upper_margin = 0;
-    var->lower_margin = 0;
-    var->hsync_len = 0;
-    var->vsync_len = 0;
-
-    switch (var->bits_per_pixel) {
-
-	case 16:	/* RGB 565 */
-	    var->red.offset = 11;
-	    var->red.length = 5;
-	    var->green.offset = 5;
-	    var->green.length = 6;
-	    var->blue.offset = 0;
-	    var->blue.length = 5;
-	    var->transp.offset = 0;
-	    var->transp.length = 0;
-	    break;
-
-	case 32:
-	    var->red.offset = 16;
-	    var->red.length = 8;
-	    var->green.offset = 8;
-	    var->green.length = 8;
-	    var->blue.offset = 0;
-	    var->blue.length = 8;
-	    var->transp.offset = 0;
-	    var->transp.length = 0;
-	    break;
-
-    }
-
-    var->red.msb_right = 0;
-    var->green.msb_right = 0;
-    var->blue.msb_right = 0;
-    var->transp.msb_right = 0;
-}
-
-
-static void dcfb_get_par(struct dcfb_par *par, const struct fb_info *info)
-{
-    *par = current_par;
-}
-
-
-static void dcfb_set_par(struct dcfb_par *par, const struct fb_info *info)
-{
-    unsigned long a, d, *p;
-
-    current_par = *par;
-    current_par_valid = 1;
-
-    switch(par->bpp) {
-    default:
-    case 16:
-	p = dc_parms[0];
-	break;
-    case 32:
-	p = dc_parms[1];
-	break;
-    }
-
-    ctrl_outl(0, 0xa05f8008);	/* reset? */
-    ctrl_outl(0, BORDERRGB);
-
-    while(1) {
-	a = *p++; d = *p++;
-	if (!a) break;
-	ctrl_outl(d, a);
-    }
-
-}
-
-static struct {
-  u_int red, green, blue;
-} palette[256];
-
-static int dcfb_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
-                         u_int *transp, struct fb_info *info)
-{
-    if (regno > 255)
-	return 1;	
-
-    *red = palette[regno].red;
-    *green = palette[regno].green;
-    *blue = palette[regno].blue;
-    *transp = 0;
-    
-    return 0;
-}
-
-
-static int dcfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
-                         u_int transp, struct fb_info *info)
-{
-    if (regno > 255)
-	return 1;
-
-    palette[regno].red = red;
-    palette[regno].green = green;
-    palette[regno].blue = blue;
-    
-    if(regno<16) {
-	switch(current_par.bpp) {
-#ifdef FBCON_HAS_CFB16
-	case 16:
-	    fbcon_cmap.cfb16[regno] =
-		((red   & 0xf800)      ) |
-		((green & 0xfc00) >>  5) |
-		((blue  & 0xf800) >> 11);
-	    break;
-#endif
-#ifdef FBCON_HAS_CFB32
-	case 32:
-	    fbcon_cmap.cfb32[regno] =
-		((red   & 0xff00) <<  8) |
-		((green & 0xff00)      ) |
-		((blue  & 0xff00) >>  8);
-	    break;
-#endif
-	}
-    }
-
-    return 0;
-}
-
-static int dcfb_blank(int blank_mode, const struct fb_info *info)
-{
-    return 0;
-}
-
-
-static void dcfb_set_disp(const void *par, struct display *disp,
-			   struct fb_info_gen *info)
-{
-    disp->screen_base = (void *)dc_videobase;
-    disp->scrollmode = SCROLL_YREDRAW;
-
-    switch(((struct dcfb_par *)par)->bpp) {
-#ifdef FBCON_HAS_CFB16
-    case 16:
-	disp->dispsw = &fbcon_cfb16;
-	disp->dispsw_data = fbcon_cmap.cfb16;
-	break;
-#endif
-#ifdef FBCON_HAS_CFB32
-    case 32:
-	disp->dispsw = &fbcon_cfb32;
-	disp->dispsw_data = fbcon_cmap.cfb32;
-	break;
-#endif
-    default:
-	disp->dispsw = &fbcon_dummy;
-    }
-}
-
-
-struct fbgen_hwswitch dcfb_switch = {
-    dcfb_detect,
-    dcfb_encode_fix,
-    dcfb_decode_var,
-    dcfb_encode_var,
-    dcfb_get_par,
-    dcfb_set_par,
-    dcfb_getcolreg,
-    dcfb_setcolreg,
-    NULL,
-    dcfb_blank,
-    dcfb_set_disp
-};
-
-static struct fb_ops dcfb_ops = {
-	owner:		THIS_MODULE,
-	fb_get_fix:	fbgen_get_fix,
-	fb_get_var:	fbgen_get_var,
-	fb_set_var:	fbgen_set_var,
-	fb_get_cmap:	fbgen_get_cmap,
-	fb_set_cmap:	fbgen_set_cmap,
-};
-
-
-int __init dcfb_init(void)
-{
-    strcpy(fb_info.gen.info.modename, "SEGA Dreamcast");
-    fb_info.gen.info.node = -1;
-    fb_info.gen.info.flags = FBINFO_FLAG_DEFAULT;
-    fb_info.gen.info.fbops = &dcfb_ops;
-    fb_info.gen.info.disp = &disp;
-    fb_info.gen.info.changevar = NULL;
-    fb_info.gen.info.switch_con = &fbgen_switch;
-    fb_info.gen.info.updatevar = &fbgen_update_var;
-    fb_info.gen.info.blank = &fbgen_blank;
-    fb_info.gen.parsize = sizeof(struct dcfb_par);
-    fb_info.gen.fbhw = &dcfb_switch;
-    fb_info.gen.fbhw->detect();
-    
-    fbgen_get_var(&disp.var, -1, &fb_info.gen.info);
-    disp.var.activate = FB_ACTIVATE_NOW;
-    fbgen_do_set_var(&disp.var, 1, &fb_info.gen);
-    fbgen_set_disp(-1, &fb_info.gen);
-    fbgen_install_cmap(0, &fb_info.gen);
-    
-    if(register_framebuffer(&fb_info.gen.info)<0) return -EINVAL;
-    
-    printk(KERN_INFO "fb%d: %s frame buffer device\n",
-	   GET_FB_IDX(fb_info.gen.info.node), fb_info.gen.info.modename);
-    
-    return 0;
-}
-
-
-void dcfb_cleanup(struct fb_info *info)
-{
-    unregister_framebuffer(info);
-}
-
-
-#ifdef MODULE
-int init_module(void)
-{
-    return dcfb_init();
-}
-
-void cleanup_module(void)
-{
-    dcfb_cleanup(void);
-}
-#endif