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/*-
* Copyright (c) 1999 FreeBSD(98) Porting Team.
* All rights reserved.
*
* 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 as
* the first lines of this file unmodified.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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.
*
* $FreeBSD: release/9.1.0/sys/pc98/cbus/scvtb.c 111119 2003-02-19 05:47:46Z imp $
*/
#include "opt_syscons.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/consio.h>
#include <sys/fbio.h>
#include <machine/md_var.h>
#include <dev/fb/fbreg.h>
#include <dev/syscons/syscons.h>
#define ATTR_OFFSET_FB 0x2000
#define attr_offset(vtb) ((vtb)->vtb_size*sizeof(u_int16_t))
#define vtb_pointer(vtb, at) \
((vtb)->vtb_buffer + sizeof(u_int16_t)*(at))
#define vtb_wrap(vtb, at, offset) \
(((at) + (offset) + (vtb)->vtb_size)%(vtb)->vtb_size)
static u_int8_t ibmpc_to_pc98[256] = {
0x01, 0x21, 0x81, 0xa1, 0x41, 0x61, 0xc1, 0xe1,
0x09, 0x29, 0x89, 0xa9, 0x49, 0x69, 0xc9, 0xe9,
0x25, 0x25, 0x25, 0x25, 0x25, 0x25, 0x25, 0x25,
0x25, 0x25, 0x25, 0x25, 0x25, 0x25, 0x25, 0x25,
0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85,
0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85,
0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5,
0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5,
0x45, 0x45, 0x45, 0x45, 0x45, 0x45, 0x45, 0x45,
0x45, 0x45, 0x45, 0x45, 0x45, 0x45, 0x45, 0x45,
0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65,
0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65, 0x65,
0xc5, 0xc5, 0xc5, 0xc5, 0xc5, 0xc5, 0xc5, 0xc5,
0xc5, 0xc5, 0xc5, 0xc5, 0xc5, 0xc5, 0xc5, 0xc5,
0xe5, 0xe5, 0xe5, 0xe5, 0xe5, 0xe5, 0xe5, 0xe5,
0xe5, 0xe5, 0xe5, 0xe5, 0xe5, 0xe5, 0xe5, 0xe5,
0x03, 0x23, 0x83, 0xa3, 0x43, 0x63, 0xc3, 0xe3,
0x0b, 0x2b, 0x8b, 0xab, 0x4b, 0x6b, 0xcb, 0xeb,
0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f,
0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f,
0x8f, 0x8f, 0x8f, 0x8f, 0x8f, 0x8f, 0x8f, 0x8f,
0x8f, 0x8f, 0x8f, 0x8f, 0x8f, 0x8f, 0x8f, 0x8f,
0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf,
0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf,
0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f,
0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f,
0x6f, 0x6f, 0x6f, 0x6f, 0x6f, 0x6f, 0x6f, 0x6f,
0x6f, 0x6f, 0x6f, 0x6f, 0x6f, 0x6f, 0x6f, 0x6f,
0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf,
0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf,
0xef, 0xef, 0xef, 0xef, 0xef, 0xef, 0xef, 0xef,
0xef, 0xef, 0xef, 0xef, 0xef, 0xef, 0xef, 0xef,
};
#define at2pc98(attr) ((attr) | ibmpc_to_pc98[(unsigned)(attr) >> 8])
void
sc_vtb_init(sc_vtb_t *vtb, int type, int cols, int rows, void *buf, int wait)
{
vtb->vtb_flags = 0;
vtb->vtb_type = type;
vtb->vtb_cols = cols;
vtb->vtb_rows = rows;
vtb->vtb_size = cols*rows;
vtb->vtb_buffer = 0;
vtb->vtb_tail = 0;
switch (type) {
case VTB_MEMORY:
case VTB_RINGBUFFER:
if ((buf == NULL) && (cols*rows != 0)) {
vtb->vtb_buffer =
(vm_offset_t)malloc(cols*rows*sizeof(u_int16_t)*2,
M_DEVBUF,
((wait) ? M_WAITOK : M_NOWAIT) | M_ZERO);
if (vtb->vtb_buffer != 0) {
vtb->vtb_flags |= VTB_ALLOCED;
}
} else {
vtb->vtb_buffer = (vm_offset_t)buf;
}
vtb->vtb_flags |= VTB_VALID;
break;
case VTB_FRAMEBUFFER:
vtb->vtb_buffer = (vm_offset_t)buf;
vtb->vtb_flags |= VTB_VALID;
break;
default:
break;
}
}
void
sc_vtb_destroy(sc_vtb_t *vtb)
{
vm_offset_t p;
vtb->vtb_cols = 0;
vtb->vtb_rows = 0;
vtb->vtb_size = 0;
vtb->vtb_tail = 0;
p = vtb->vtb_buffer;
vtb->vtb_buffer = 0;
switch (vtb->vtb_type) {
case VTB_MEMORY:
case VTB_RINGBUFFER:
if ((vtb->vtb_flags & VTB_ALLOCED) && (p != 0))
free((void *)p, M_DEVBUF);
break;
default:
break;
}
vtb->vtb_flags = 0;
vtb->vtb_type = VTB_INVALID;
}
size_t
sc_vtb_size(int cols, int rows)
{
return (size_t)(cols*rows*sizeof(u_int16_t)*2);
}
int
sc_vtb_getc(sc_vtb_t *vtb, int at)
{
vm_offset_t p = vtb_pointer(vtb, at);
if (vtb->vtb_type == VTB_FRAMEBUFFER)
return (readw(p) & 0x00ff);
else
return (*(u_int16_t *)p & 0x00ff);
}
int
sc_vtb_geta(sc_vtb_t *vtb, int at)
{
vm_offset_t p = vtb_pointer(vtb, at);
if (vtb->vtb_type == VTB_FRAMEBUFFER)
return (readw(p + ATTR_OFFSET_FB) & 0xff00);
else
return (*(u_int16_t *)(p + attr_offset(vtb)) & 0xff00);
}
__inline static void
vtb_putc(sc_vtb_t *vtb, vm_offset_t p, int c, int a)
{
if (vtb->vtb_type == VTB_FRAMEBUFFER) {
writew(p, c);
writew(p + ATTR_OFFSET_FB, at2pc98(a));
} else {
*(u_int16_t *)p = c;
*(u_int16_t *)(p + attr_offset(vtb)) = at2pc98(a);
}
}
void
sc_vtb_putc(sc_vtb_t *vtb, int at, int c, int a)
{
vtb_putc(vtb, vtb_pointer(vtb, at), c, a);
}
vm_offset_t
sc_vtb_putchar(sc_vtb_t *vtb, vm_offset_t p, int c, int a)
{
vtb_putc(vtb, p, c, a);
return (p + sizeof(u_int16_t));
}
vm_offset_t
sc_vtb_pointer(sc_vtb_t *vtb, int at)
{
return (vtb_pointer(vtb, at));
}
int
sc_vtb_pos(sc_vtb_t *vtb, int pos, int offset)
{
return ((pos + offset + vtb->vtb_size)%vtb->vtb_size);
}
void
sc_vtb_clear(sc_vtb_t *vtb, int c, int attr)
{
vm_offset_t p = vtb_pointer(vtb, 0);
if (vtb->vtb_type == VTB_FRAMEBUFFER) {
fillw_io(c, p, vtb->vtb_size);
fillw_io(at2pc98(attr), p + ATTR_OFFSET_FB, vtb->vtb_size);
} else {
fillw(c, (void *)p, vtb->vtb_size);
fillw(at2pc98(attr), (void *)(p + attr_offset(vtb)),
vtb->vtb_size);
}
}
void
sc_vtb_copy(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2, int to, int count)
{
vm_offset_t p1, p2;
p1 = vtb_pointer(vtb1, from);
p2 = vtb_pointer(vtb2, to);
if (vtb2->vtb_type == VTB_FRAMEBUFFER) {
bcopy_toio(p1, p2, count*sizeof(u_int16_t));
bcopy_toio(p1 + attr_offset(vtb1),
p2 + ATTR_OFFSET_FB,
count*sizeof(u_int16_t));
} else if (vtb1->vtb_type == VTB_FRAMEBUFFER) {
bcopy_fromio(p1, p2, count*sizeof(u_int16_t));
bcopy_fromio(p1 + ATTR_OFFSET_FB,
p2 + attr_offset(vtb2),
count*sizeof(u_int16_t));
} else {
bcopy((void *)p1, (void *)p2, count*sizeof(u_int16_t));
bcopy((void *)(p1 + attr_offset(vtb1)),
(void *)(p2 + attr_offset(vtb2)),
count*sizeof(u_int16_t));
}
}
void
sc_vtb_append(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2, int count)
{
int len;
vm_offset_t p1, p2;
if (vtb2->vtb_type != VTB_RINGBUFFER)
return;
while (count > 0) {
p1 = vtb_pointer(vtb1, from);
p2 = vtb_pointer(vtb2, vtb2->vtb_tail);
len = imin(count, vtb2->vtb_size - vtb2->vtb_tail);
if (vtb1->vtb_type == VTB_FRAMEBUFFER) {
bcopy_fromio(p1, p2, len*sizeof(u_int16_t));
bcopy_fromio(p1 + ATTR_OFFSET_FB,
p2 + attr_offset(vtb2),
len*sizeof(u_int16_t));
} else {
bcopy((void *)p1, (void *)p2, len*sizeof(u_int16_t));
bcopy((void *)(p1 + attr_offset(vtb1)),
(void *)(p2 + attr_offset(vtb2)),
len*sizeof(u_int16_t));
}
from += len;
count -= len;
vtb2->vtb_tail = vtb_wrap(vtb2, vtb2->vtb_tail, len);
}
}
void
sc_vtb_seek(sc_vtb_t *vtb, int pos)
{
vtb->vtb_tail = pos%vtb->vtb_size;
}
void
sc_vtb_erase(sc_vtb_t *vtb, int at, int count, int c, int attr)
{
vm_offset_t p;
if (at + count > vtb->vtb_size)
count = vtb->vtb_size - at;
p = vtb_pointer(vtb, at);
if (vtb->vtb_type == VTB_FRAMEBUFFER) {
fillw_io(c, p, count);
fillw_io(at2pc98(attr), p + ATTR_OFFSET_FB, count);
} else {
fillw(c, (void *)p, count);
fillw(at2pc98(attr), (void *)(p + attr_offset(vtb)), count);
}
}
void
sc_vtb_move(sc_vtb_t *vtb, int from, int to, int count)
{
vm_offset_t p1, p2;
if (from + count > vtb->vtb_size)
count = vtb->vtb_size - from;
if (to + count > vtb->vtb_size)
count = vtb->vtb_size - to;
if (count <= 0)
return;
p1 = vtb_pointer(vtb, from);
p2 = vtb_pointer(vtb, to);
if (vtb->vtb_type == VTB_FRAMEBUFFER) {
bcopy_io(p1, p2, count*sizeof(u_int16_t));
bcopy_io(p1 + ATTR_OFFSET_FB,
p2 + ATTR_OFFSET_FB, count*sizeof(u_int16_t));
} else {
bcopy((void *)p1, (void *)p2, count*sizeof(u_int16_t));
bcopy((void *)(p1 + attr_offset(vtb)),
(void *)(p2 + attr_offset(vtb)), count*sizeof(u_int16_t));
}
}
void
sc_vtb_delete(sc_vtb_t *vtb, int at, int count, int c, int attr)
{
int len;
vm_offset_t p1, p2;
if (at + count > vtb->vtb_size)
count = vtb->vtb_size - at;
len = vtb->vtb_size - at - count;
if (len > 0) {
p1 = vtb_pointer(vtb, at + count);
p2 = vtb_pointer(vtb, at);
if (vtb->vtb_type == VTB_FRAMEBUFFER) {
bcopy_io(p1, p2, len*sizeof(u_int16_t));
bcopy_io(p1 + ATTR_OFFSET_FB,
p2 + ATTR_OFFSET_FB,
len*sizeof(u_int16_t));
} else {
bcopy((void *)p1, (void *)p2, len*sizeof(u_int16_t));
bcopy((void *)(p1 + attr_offset(vtb)),
(void *)(p2 + attr_offset(vtb)),
len*sizeof(u_int16_t));
}
}
p1 = vtb_pointer(vtb, at + len);
if (vtb->vtb_type == VTB_FRAMEBUFFER) {
fillw_io(c, p1, vtb->vtb_size - at - len);
fillw_io(at2pc98(attr), p1 + ATTR_OFFSET_FB,
vtb->vtb_size - at - len);
} else {
fillw(c, (void *)p1, vtb->vtb_size - at - len);
fillw(at2pc98(attr), (void *)(p1 + attr_offset(vtb)),
vtb->vtb_size - at - len);
}
}
void
sc_vtb_ins(sc_vtb_t *vtb, int at, int count, int c, int attr)
{
vm_offset_t p1, p2;
p1 = vtb_pointer(vtb, at);
if (at + count > vtb->vtb_size) {
count = vtb->vtb_size - at;
} else {
p2 = vtb_pointer(vtb, at + count);
if (vtb->vtb_type == VTB_FRAMEBUFFER) {
bcopy_io(p1, p2,
(vtb->vtb_size - at - count)*sizeof(u_int16_t));
bcopy_io(p1 + ATTR_OFFSET_FB,
p2 + ATTR_OFFSET_FB,
(vtb->vtb_size - at - count)*sizeof(u_int16_t));
} else {
bcopy((void *)p1, (void *)p2,
(vtb->vtb_size - at - count)*sizeof(u_int16_t));
bcopy((void *)(p1 + attr_offset(vtb)),
(void *)(p2 + attr_offset(vtb)),
(vtb->vtb_size - at - count)*sizeof(u_int16_t));
}
}
if (vtb->vtb_type == VTB_FRAMEBUFFER) {
fillw_io(c, p1, count);
fillw_io(at2pc98(attr), p1 + ATTR_OFFSET_FB, count);
} else {
fillw(c, (void *)p1, count);
fillw(at2pc98(attr), (void *)(p1 + attr_offset(vtb)), count);
}
}