459 lines
13 KiB
C
459 lines
13 KiB
C
/* $NetBSD: tga_bt463.c,v 1.2 1998/08/18 23:29:28 thorpej Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1998 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
|
|
* NASA Ames Research Center.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/*
|
|
* 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/systm.h>
|
|
#include <sys/device.h>
|
|
#include <sys/buf.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/malloc.h>
|
|
#include <vm/vm.h>
|
|
|
|
#include <dev/pci/pcivar.h>
|
|
#include <dev/pci/tgareg.h>
|
|
#include <dev/pci/tgavar.h>
|
|
#include <dev/ic/bt463reg.h>
|
|
|
|
#include <dev/wscons/wsconsio.h>
|
|
|
|
#include "opt_uvm.h"
|
|
|
|
/*
|
|
* Functions exported via the RAMDAC configuration table.
|
|
*/
|
|
void tga_bt463_init __P((struct tga_devconfig *, int));
|
|
int tga_bt463_intr __P((void *));
|
|
int tga_bt463_set_cmap __P((struct tga_devconfig *,
|
|
struct wsdisplay_cmap *));
|
|
int tga_bt463_get_cmap __P((struct tga_devconfig *,
|
|
struct wsdisplay_cmap *));
|
|
|
|
int tga_bt463_check_curcmap __P((struct tga_devconfig *,
|
|
struct wsdisplay_cursor *cursorp));
|
|
void tga_bt463_set_curcmap __P((struct tga_devconfig *,
|
|
struct wsdisplay_cursor *cursorp));
|
|
int tga_bt463_get_curcmap __P((struct tga_devconfig *,
|
|
struct wsdisplay_cursor *cursorp));
|
|
|
|
const struct tga_ramdac_conf tga_ramdac_bt463 = {
|
|
"Bt463",
|
|
tga_bt463_init,
|
|
tga_bt463_intr,
|
|
tga_bt463_set_cmap,
|
|
tga_bt463_get_cmap,
|
|
tga_builtin_set_cursor,
|
|
tga_builtin_get_cursor,
|
|
tga_builtin_set_curpos,
|
|
tga_builtin_get_curpos,
|
|
tga_builtin_get_curmax,
|
|
tga_bt463_check_curcmap,
|
|
tga_bt463_set_curcmap,
|
|
tga_bt463_get_curcmap,
|
|
};
|
|
|
|
/*
|
|
* Private data.
|
|
*/
|
|
struct bt463data {
|
|
int changed; /* what changed; see below */
|
|
char curcmap_r[2]; /* cursor colormap */
|
|
char curcmap_g[2];
|
|
char curcmap_b[2];
|
|
char cmap_r[BT463_NCMAP_ENTRIES]; /* colormap */
|
|
char cmap_g[BT463_NCMAP_ENTRIES];
|
|
char cmap_b[BT463_NCMAP_ENTRIES];
|
|
};
|
|
|
|
#define DATA_CURCMAP_CHANGED 0x01 /* cursor colormap changed */
|
|
#define DATA_CMAP_CHANGED 0x02 /* colormap changed */
|
|
#define DATA_ALL_CHANGED 0x03
|
|
|
|
/*
|
|
* Internal functions.
|
|
*/
|
|
inline void tga_bt463_wr_d __P((volatile tga_reg_t *, u_int, u_int8_t));
|
|
inline u_int8_t tga_bt463_rd_d __P((volatile tga_reg_t *, u_int));
|
|
inline void tga_bt463_wraddr __P((volatile tga_reg_t *, u_int16_t));
|
|
void tga_bt463_update __P((struct tga_devconfig *, struct bt463data *));
|
|
|
|
#define tga_bt463_sched_update(dc) \
|
|
((dc)->dc_regs[TGA_REG_SISR] = 0x00010000) /* XXX */
|
|
|
|
/*****************************************************************************/
|
|
|
|
/*
|
|
* Functions exported via the RAMDAC configuration table.
|
|
*/
|
|
|
|
void
|
|
tga_bt463_init(dc, alloc)
|
|
struct tga_devconfig *dc;
|
|
int alloc;
|
|
{
|
|
struct bt463data tmp, *data;
|
|
int i;
|
|
|
|
/*
|
|
* Init the BT463 for normal operation.
|
|
*/
|
|
|
|
/*
|
|
* Select:
|
|
*
|
|
* Overlay mapping: mapped to common palette.
|
|
* 14 window type entries.
|
|
*/
|
|
tga_bt463_wraddr(dc->dc_regs, BT463_IREG_COMMAND_1);
|
|
tga_bt463_wr_d(dc->dc_regs, BT463_REG_IREG_DATA, 0x48);
|
|
|
|
/*
|
|
* Initialize the read mask.
|
|
*/
|
|
tga_bt463_wraddr(dc->dc_regs, BT463_IREG_READ_MASK_P0_P7);
|
|
for (i = 0; i < 3; i++)
|
|
tga_bt463_wr_d(dc->dc_regs, BT463_REG_IREG_DATA, 0xff);
|
|
|
|
/*
|
|
* Initialize the blink mask.
|
|
*/
|
|
tga_bt463_wraddr(dc->dc_regs, BT463_IREG_BLINK_MASK_P0_P7);
|
|
for (i = 0; i < 3; i++)
|
|
tga_bt463_wr_d(dc->dc_regs, BT463_REG_IREG_DATA, 0);
|
|
|
|
/*
|
|
* If we should allocate a new private info struct, do so.
|
|
* Otherwise, use the one we have (if it's there), or
|
|
* use the temporary one on the stack.
|
|
*/
|
|
if (alloc) {
|
|
if (dc->dc_ramdac_private != NULL)
|
|
panic("tga_bt463_init: already have private struct");
|
|
dc->dc_ramdac_private = malloc(sizeof *data, M_DEVBUF,
|
|
M_WAITOK);
|
|
}
|
|
if (dc->dc_ramdac_private != NULL)
|
|
data = dc->dc_ramdac_private;
|
|
else
|
|
data = &tmp;
|
|
|
|
/*
|
|
* Initalize the RAMDAC info struct to hold all of our
|
|
* data, and fill it in.
|
|
*/
|
|
data->changed = DATA_ALL_CHANGED;
|
|
|
|
/* initial cursor colormap: 0 is black, 1 is white */
|
|
data->curcmap_r[0] = data->curcmap_g[0] = data->curcmap_b[0] = 0;
|
|
data->curcmap_r[1] = data->curcmap_g[1] = data->curcmap_b[1] = 0xff;
|
|
|
|
/* Initial colormap: 0 is black, everything else is white */
|
|
data->cmap_r[0] = data->cmap_g[0] = data->cmap_b[0] = 0;
|
|
for (i = 1; i < 256; i++)
|
|
data->cmap_r[i] = data->cmap_g[i] = data->cmap_b[i] = 255;
|
|
|
|
tga_bt463_update(dc, data);
|
|
|
|
dc->dc_regs[TGA_REG_SISR] = 0x00000001; /* XXX */
|
|
}
|
|
|
|
int
|
|
tga_bt463_set_cmap(dc, cmapp)
|
|
struct tga_devconfig *dc;
|
|
struct wsdisplay_cmap *cmapp;
|
|
{
|
|
struct bt463data *data = dc->dc_ramdac_private;
|
|
int count, index, s;
|
|
|
|
if ((u_int)cmapp->index >= BT463_NCMAP_ENTRIES ||
|
|
((u_int)cmapp->index + (u_int)cmapp->count) > BT463_NCMAP_ENTRIES)
|
|
return (EINVAL);
|
|
#ifdef UVM
|
|
if (!uvm_useracc(cmapp->red, cmapp->count, B_READ) ||
|
|
!uvm_useracc(cmapp->green, cmapp->count, B_READ) ||
|
|
!uvm_useracc(cmapp->blue, cmapp->count, B_READ))
|
|
return (EFAULT);
|
|
#else
|
|
if (!useracc(cmapp->red, cmapp->count, B_READ) ||
|
|
!useracc(cmapp->green, cmapp->count, B_READ) ||
|
|
!useracc(cmapp->blue, cmapp->count, B_READ))
|
|
return (EFAULT);
|
|
#endif
|
|
|
|
s = spltty();
|
|
|
|
index = cmapp->index;
|
|
count = cmapp->count;
|
|
copyin(cmapp->red, &data->cmap_r[index], count);
|
|
copyin(cmapp->green, &data->cmap_g[index], count);
|
|
copyin(cmapp->blue, &data->cmap_b[index], count);
|
|
|
|
data->changed |= DATA_CMAP_CHANGED;
|
|
|
|
tga_bt463_sched_update(dc);
|
|
splx(s);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
tga_bt463_get_cmap(dc, cmapp)
|
|
struct tga_devconfig *dc;
|
|
struct wsdisplay_cmap *cmapp;
|
|
{
|
|
struct bt463data *data = dc->dc_ramdac_private;
|
|
int error, count, index;
|
|
|
|
if ((u_int)cmapp->index >= BT463_NCMAP_ENTRIES ||
|
|
((u_int)cmapp->index + (u_int)cmapp->count) > BT463_NCMAP_ENTRIES)
|
|
return (EINVAL);
|
|
|
|
count = cmapp->count;
|
|
index = cmapp->index;
|
|
|
|
error = copyout(&data->cmap_r[index], cmapp->red, count);
|
|
if (error)
|
|
return (error);
|
|
error = copyout(&data->cmap_g[index], cmapp->green, count);
|
|
if (error)
|
|
return (error);
|
|
error = copyout(&data->cmap_b[index], cmapp->blue, count);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
tga_bt463_check_curcmap(dc, cursorp)
|
|
struct tga_devconfig *dc;
|
|
struct wsdisplay_cursor *cursorp;
|
|
{
|
|
int count;
|
|
|
|
if ((u_int)cursorp->cmap.index > 2 ||
|
|
((u_int)cursorp->cmap.index +
|
|
(u_int)cursorp->cmap.count) > 2)
|
|
return (EINVAL);
|
|
count = cursorp->cmap.count;
|
|
#ifdef UVM
|
|
if (!uvm_useracc(cursorp->cmap.red, count, B_READ) ||
|
|
!uvm_useracc(cursorp->cmap.green, count, B_READ) ||
|
|
!uvm_useracc(cursorp->cmap.blue, count, B_READ))
|
|
return (EFAULT);
|
|
#else
|
|
if (!useracc(cursorp->cmap.red, count, B_READ) ||
|
|
!useracc(cursorp->cmap.green, count, B_READ) ||
|
|
!useracc(cursorp->cmap.blue, count, B_READ))
|
|
return (EFAULT);
|
|
#endif
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
tga_bt463_set_curcmap(dc, cursorp)
|
|
struct tga_devconfig *dc;
|
|
struct wsdisplay_cursor *cursorp;
|
|
{
|
|
struct bt463data *data = dc->dc_ramdac_private;
|
|
int count, index;
|
|
|
|
/* can't fail; parameters have already been checked. */
|
|
count = cursorp->cmap.count;
|
|
index = cursorp->cmap.index;
|
|
copyin(cursorp->cmap.red, &data->curcmap_r[index], count);
|
|
copyin(cursorp->cmap.green, &data->curcmap_g[index], count);
|
|
copyin(cursorp->cmap.blue, &data->curcmap_b[index], count);
|
|
data->changed |= DATA_CURCMAP_CHANGED;
|
|
tga_bt463_sched_update(dc);
|
|
}
|
|
|
|
int
|
|
tga_bt463_get_curcmap(dc, cursorp)
|
|
struct tga_devconfig *dc;
|
|
struct wsdisplay_cursor *cursorp;
|
|
{
|
|
struct bt463data *data = dc->dc_ramdac_private;
|
|
int error;
|
|
|
|
cursorp->cmap.index = 0; /* DOCMAP */
|
|
cursorp->cmap.count = 2;
|
|
if (cursorp->cmap.red != NULL) {
|
|
error = copyout(data->curcmap_r, cursorp->cmap.red, 2);
|
|
if (error)
|
|
return (error);
|
|
}
|
|
if (cursorp->cmap.green != NULL) {
|
|
error = copyout(data->curcmap_g, cursorp->cmap.green, 2);
|
|
if (error)
|
|
return (error);
|
|
}
|
|
if (cursorp->cmap.blue != NULL) {
|
|
error = copyout(data->curcmap_b, cursorp->cmap.blue, 2);
|
|
if (error)
|
|
return (error);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
tga_bt463_intr(v)
|
|
void *v;
|
|
{
|
|
struct tga_devconfig *dc = v;
|
|
|
|
if ((dc->dc_regs[TGA_REG_SISR] & 0x00010001) != 0x00010001)
|
|
return 0;
|
|
tga_bt463_update(dc, dc->dc_ramdac_private);
|
|
dc->dc_regs[TGA_REG_SISR] = 0x00000001;
|
|
return (1);
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
|
|
/*
|
|
* Internal functions.
|
|
*/
|
|
|
|
inline void
|
|
tga_bt463_wr_d(tgaregs, btreg, val)
|
|
volatile tga_reg_t *tgaregs;
|
|
u_int btreg;
|
|
u_int8_t val;
|
|
{
|
|
|
|
if (btreg > BT463_REG_MAX)
|
|
panic("tga_bt463_wr_d: reg %d out of range\n", btreg);
|
|
|
|
/* XXX */
|
|
tgaregs[TGA_REG_EPDR] = (btreg << 10) | (0 << 9) || (0 << 8) | val;
|
|
#ifdef __alpha__
|
|
alpha_mb();
|
|
#endif
|
|
}
|
|
|
|
inline u_int8_t
|
|
tga_bt463_rd_d(tgaregs, btreg)
|
|
volatile tga_reg_t *tgaregs;
|
|
u_int btreg;
|
|
{
|
|
tga_reg_t rdval;
|
|
|
|
if (btreg > BT463_REG_MAX)
|
|
panic("tga_bt463_rd_d: reg %d out of range\n", btreg);
|
|
|
|
tgaregs[TGA_REG_EPSR] = (btreg << 2) | (0x1 << 1) | 0; /* XXX */
|
|
#ifdef __alpha__
|
|
alpha_mb();
|
|
#endif
|
|
|
|
rdval = tgaregs[TGA_REG_EPDR];
|
|
return (rdval >> 16) & 0xff; /* XXX */
|
|
}
|
|
|
|
inline void
|
|
tga_bt463_wraddr(tgaregs, ireg)
|
|
volatile tga_reg_t *tgaregs;
|
|
u_int16_t ireg;
|
|
{
|
|
|
|
tga_bt463_wr_d(tgaregs, BT463_REG_ADDR_LOW, ireg & 0xff);
|
|
tga_bt463_wr_d(tgaregs, BT463_REG_ADDR_HIGH, (ireg >> 8) & 0xff);
|
|
}
|
|
|
|
void
|
|
tga_bt463_update(dc, data)
|
|
struct tga_devconfig *dc;
|
|
struct bt463data *data;
|
|
{
|
|
int i, v;
|
|
|
|
v = data->changed;
|
|
data->changed = 0;
|
|
|
|
if (v & DATA_CURCMAP_CHANGED) {
|
|
tga_bt463_wraddr(dc->dc_regs, BT463_IREG_CURSOR_COLOR_0);
|
|
/* spit out the cursor data */
|
|
for (i = 0; i < 2; i++) {
|
|
tga_bt463_wr_d(dc->dc_regs, BT463_REG_IREG_DATA,
|
|
data->curcmap_r[i]);
|
|
tga_bt463_wr_d(dc->dc_regs, BT463_REG_IREG_DATA,
|
|
data->curcmap_g[i]);
|
|
tga_bt463_wr_d(dc->dc_regs, BT463_REG_IREG_DATA,
|
|
data->curcmap_b[i]);
|
|
}
|
|
}
|
|
|
|
if (v & DATA_CMAP_CHANGED) {
|
|
tga_bt463_wraddr(dc->dc_regs, BT463_IREG_CPALETTE_RAM);
|
|
/* spit out the colormap data */
|
|
for (i = 0; i < BT463_NCMAP_ENTRIES; i++) {
|
|
tga_bt463_wr_d(dc->dc_regs, BT463_REG_CMAP_DATA,
|
|
data->cmap_r[i]);
|
|
tga_bt463_wr_d(dc->dc_regs, BT463_REG_CMAP_DATA,
|
|
data->cmap_g[i]);
|
|
tga_bt463_wr_d(dc->dc_regs, BT463_REG_CMAP_DATA,
|
|
data->cmap_b[i]);
|
|
}
|
|
}
|
|
}
|