191 lines
3.6 KiB
C
191 lines
3.6 KiB
C
/* $NetBSD: tga_conf.c,v 1.4 2000/04/02 18:59:32 nathanw Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1995, 1996 Carnegie-Mellon University.
|
|
* All rights reserved.
|
|
*
|
|
* Author: Chris G. Demetriou
|
|
*
|
|
* Permission to use, copy, modify and distribute this software and
|
|
* its documentation is hereby granted, provided that both the copyright
|
|
* notice and this permission notice appear in all copies of the
|
|
* software, derivative works or modified versions, and any portions
|
|
* thereof, and that both notices appear in supporting documentation.
|
|
*
|
|
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
|
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
|
|
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
|
*
|
|
* Carnegie Mellon requests users of this software to return to
|
|
*
|
|
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
|
* School of Computer Science
|
|
* Carnegie Mellon University
|
|
* Pittsburgh PA 15213-3890
|
|
*
|
|
* any improvements or extensions that they make and grant Carnegie the
|
|
* rights to redistribute these changes.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/device.h>
|
|
|
|
#include <dev/pci/pcivar.h>
|
|
#include <dev/pci/tgareg.h>
|
|
#include <dev/pci/tgavar.h>
|
|
|
|
#include <dev/ic/bt485var.h>
|
|
#include <dev/ic/bt463var.h>
|
|
|
|
#undef KB
|
|
#define KB * 1024
|
|
#undef MB
|
|
#define MB * 1024 * 1024
|
|
|
|
static const struct tga_conf tga_configs[TGA_TYPE_UNKNOWN] = {
|
|
/* TGA_TYPE_T8_01 */
|
|
{
|
|
"T8-01",
|
|
bt485_funcs,
|
|
8,
|
|
4 MB,
|
|
2 KB,
|
|
1, { 2 MB, 0 }, { 1 MB, 0 },
|
|
0, { 0, 0 }, { 0, 0 },
|
|
},
|
|
/* TGA_TYPE_T8_02 */
|
|
{
|
|
"T8-02",
|
|
bt485_funcs,
|
|
8,
|
|
4 MB,
|
|
4 KB,
|
|
1, { 2 MB, 0 }, { 2 MB, 0 },
|
|
0, { 0, 0 }, { 0, 0 },
|
|
},
|
|
/* TGA_TYPE_T8_22 */
|
|
{
|
|
"T8-22",
|
|
bt485_funcs,
|
|
8,
|
|
8 MB,
|
|
4 KB,
|
|
1, { 4 MB, 0 }, { 2 MB, 0 },
|
|
1, { 6 MB, 0 }, { 2 MB, 0 },
|
|
},
|
|
/* TGA_TYPE_T8_44 */
|
|
{
|
|
"T8-44",
|
|
bt485_funcs,
|
|
8,
|
|
16 MB,
|
|
4 KB,
|
|
2, { 8 MB, 12 MB }, { 2 MB, 2 MB },
|
|
2, { 10 MB, 14 MB }, { 2 MB, 2 MB },
|
|
},
|
|
/* TGA_TYPE_T32_04 */
|
|
{
|
|
"T32-04",
|
|
bt463_funcs,
|
|
32,
|
|
16 MB,
|
|
8 KB,
|
|
1, { 8 MB, 0 }, { 4 MB, 0 },
|
|
0, { 0, 0 }, { 0, 0 },
|
|
},
|
|
/* TGA_TYPE_T32_08 */
|
|
{
|
|
"T32-08",
|
|
bt463_funcs,
|
|
32,
|
|
16 MB,
|
|
16 KB,
|
|
1, { 8 MB, 0 }, { 8 MB, 0 },
|
|
0, { 0, 0 }, { 0, 0 },
|
|
},
|
|
/* TGA_TYPE_T32_88 */
|
|
{
|
|
"T32-88",
|
|
bt463_funcs,
|
|
32,
|
|
32 MB,
|
|
16 KB,
|
|
1, { 16 MB, 0 }, { 8 MB, 0 },
|
|
1, { 24 MB, 0 }, { 8 MB, 0 },
|
|
},
|
|
};
|
|
|
|
#undef KB
|
|
#undef MB
|
|
|
|
int
|
|
tga_identify(dc)
|
|
struct tga_devconfig *dc;
|
|
{
|
|
int type;
|
|
int gder;
|
|
int deep, addrmask, wide;
|
|
|
|
gder = TGARREG(dc, TGA_REG_GDER);
|
|
|
|
deep = (gder & 0x1) != 0; /* XXX */
|
|
addrmask = (gder >> 2) & 0x7; /* XXX */
|
|
wide = (gder & 0x200) == 0; /* XXX */
|
|
|
|
|
|
type = TGA_TYPE_UNKNOWN;
|
|
|
|
if (!deep) {
|
|
/* 8bpp frame buffer */
|
|
|
|
if (addrmask == 0x0) {
|
|
/* 4MB core map; T8-01 or T8-02 */
|
|
|
|
if (!wide)
|
|
type = TGA_TYPE_T8_01;
|
|
else
|
|
type = TGA_TYPE_T8_02;
|
|
} else if (addrmask == 0x1) {
|
|
/* 8MB core map; T8-22 */
|
|
|
|
if (wide) /* sanity */
|
|
type = TGA_TYPE_T8_22;
|
|
} else if (addrmask == 0x3) {
|
|
/* 16MB core map; T8-44 */
|
|
|
|
if (wide) /* sanity */
|
|
type = TGA_TYPE_T8_44;
|
|
}
|
|
} else {
|
|
/* 32bpp frame buffer */
|
|
|
|
if (addrmask == 0x3) {
|
|
/* 16MB core map; T32-04 or T32-08 */
|
|
|
|
if (!wide)
|
|
type = TGA_TYPE_T32_04;
|
|
else
|
|
type = TGA_TYPE_T32_08;
|
|
} else if (addrmask == 0x7) {
|
|
/* 32MB core map; T32-88 */
|
|
|
|
if (wide) /* sanity */
|
|
type = TGA_TYPE_T32_88;
|
|
}
|
|
}
|
|
|
|
return (type);
|
|
}
|
|
|
|
const struct tga_conf *
|
|
tga_getconf(type)
|
|
int type;
|
|
{
|
|
|
|
if (type >= 0 && type < TGA_TYPE_UNKNOWN)
|
|
return &tga_configs[type];
|
|
|
|
return (NULL);
|
|
}
|
|
|