300 lines
7.6 KiB
C
300 lines
7.6 KiB
C
/*-
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* Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer as
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* the first lines of this file unmodified.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include "opt_syscons.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/fbio.h>
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#include <sys/consio.h>
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#include <machine/md_var.h>
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#include <machine/bus.h>
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#include <dev/fb/fbreg.h>
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#include <dev/syscons/syscons.h>
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#define vtb_wrap(vtb, at, offset) \
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(((at) + (offset) + (vtb)->vtb_size)%(vtb)->vtb_size)
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void
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sc_vtb_init(sc_vtb_t *vtb, int type, int cols, int rows, void *buf, int wait)
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{
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vtb->vtb_flags = 0;
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vtb->vtb_type = type;
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vtb->vtb_cols = cols;
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vtb->vtb_rows = rows;
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vtb->vtb_size = cols*rows;
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vtb->vtb_buffer = NULL;
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vtb->vtb_tail = 0;
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switch (type) {
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case VTB_MEMORY:
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case VTB_RINGBUFFER:
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if ((buf == NULL) && (cols*rows != 0)) {
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vtb->vtb_buffer =
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(vm_offset_t)malloc(cols*rows*sizeof(u_int16_t),
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M_DEVBUF,
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(wait) ? M_WAITOK : M_NOWAIT);
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if (vtb->vtb_buffer != NULL) {
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bzero((void *)sc_vtb_pointer(vtb, 0),
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cols*rows*sizeof(u_int16_t));
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vtb->vtb_flags |= VTB_ALLOCED;
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}
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} else {
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vtb->vtb_buffer = (vm_offset_t)buf;
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}
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vtb->vtb_flags |= VTB_VALID;
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break;
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case VTB_FRAMEBUFFER:
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vtb->vtb_buffer = (vm_offset_t)buf;
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vtb->vtb_flags |= VTB_VALID;
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break;
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default:
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break;
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}
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}
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void
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sc_vtb_destroy(sc_vtb_t *vtb)
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{
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vm_offset_t p;
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vtb->vtb_cols = 0;
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vtb->vtb_rows = 0;
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vtb->vtb_size = 0;
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vtb->vtb_tail = 0;
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p = vtb->vtb_buffer;
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vtb->vtb_buffer = NULL;
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switch (vtb->vtb_type) {
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case VTB_MEMORY:
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case VTB_RINGBUFFER:
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if ((vtb->vtb_flags & VTB_ALLOCED) && (p != NULL))
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free((void *)p, M_DEVBUF);
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break;
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default:
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break;
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}
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vtb->vtb_flags = 0;
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vtb->vtb_type = VTB_INVALID;
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}
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size_t
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sc_vtb_size(int cols, int rows)
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{
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return (size_t)(cols*rows*sizeof(u_int16_t));
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}
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int
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sc_vtb_getc(sc_vtb_t *vtb, int at)
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{
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if (vtb->vtb_type == VTB_FRAMEBUFFER)
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return (readw(sc_vtb_pointer(vtb, at)) & 0x00ff);
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else
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return (*(u_int16_t *)sc_vtb_pointer(vtb, at) & 0x00ff);
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}
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int
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sc_vtb_geta(sc_vtb_t *vtb, int at)
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{
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if (vtb->vtb_type == VTB_FRAMEBUFFER)
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return (readw(sc_vtb_pointer(vtb, at)) & 0xff00);
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else
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return (*(u_int16_t *)sc_vtb_pointer(vtb, at) & 0xff00);
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}
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void
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sc_vtb_putc(sc_vtb_t *vtb, int at, int c, int a)
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{
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if (vtb->vtb_type == VTB_FRAMEBUFFER)
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writew(sc_vtb_pointer(vtb, at), a | c);
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else
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*(u_int16_t *)sc_vtb_pointer(vtb, at) = a | c;
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}
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vm_offset_t
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sc_vtb_putchar(sc_vtb_t *vtb, vm_offset_t p, int c, int a)
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{
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if (vtb->vtb_type == VTB_FRAMEBUFFER)
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writew(p, a | c);
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else
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*(u_int16_t *)p = a | c;
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return (p + sizeof(u_int16_t));
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}
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vm_offset_t
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sc_vtb_pointer(sc_vtb_t *vtb, int at)
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{
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return (vtb->vtb_buffer + sizeof(u_int16_t)*(at));
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}
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int
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sc_vtb_pos(sc_vtb_t *vtb, int pos, int offset)
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{
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return ((pos + offset + vtb->vtb_size)%vtb->vtb_size);
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}
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void
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sc_vtb_clear(sc_vtb_t *vtb, int c, int attr)
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{
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if (vtb->vtb_type == VTB_FRAMEBUFFER)
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fillw_io(attr | c, sc_vtb_pointer(vtb, 0), vtb->vtb_size);
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else
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fillw(attr | c, (void *)sc_vtb_pointer(vtb, 0), vtb->vtb_size);
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}
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void
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sc_vtb_copy(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2, int to, int count)
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{
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/* XXX if both are VTB_VRAMEBUFFER... */
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if (vtb2->vtb_type == VTB_FRAMEBUFFER) {
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bcopy_toio(sc_vtb_pointer(vtb1, from),
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sc_vtb_pointer(vtb2, to),
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count*sizeof(u_int16_t));
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} else if (vtb1->vtb_type == VTB_FRAMEBUFFER) {
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bcopy_fromio(sc_vtb_pointer(vtb1, from),
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sc_vtb_pointer(vtb2, to),
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count*sizeof(u_int16_t));
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} else {
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bcopy((void *)sc_vtb_pointer(vtb1, from),
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(void *)sc_vtb_pointer(vtb2, to),
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count*sizeof(u_int16_t));
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}
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}
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void
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sc_vtb_append(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2, int count)
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{
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int len;
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if (vtb2->vtb_type != VTB_RINGBUFFER)
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return;
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while (count > 0) {
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len = imin(count, vtb2->vtb_size - vtb2->vtb_tail);
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if (vtb1->vtb_type == VTB_FRAMEBUFFER) {
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bcopy_fromio(sc_vtb_pointer(vtb1, from),
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sc_vtb_pointer(vtb2, vtb2->vtb_tail),
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len*sizeof(u_int16_t));
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} else {
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bcopy((void *)sc_vtb_pointer(vtb1, from),
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(void *)sc_vtb_pointer(vtb2, vtb2->vtb_tail),
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len*sizeof(u_int16_t));
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}
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from += len;
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count -= len;
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vtb2->vtb_tail = vtb_wrap(vtb2, vtb2->vtb_tail, len);
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}
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}
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void
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sc_vtb_seek(sc_vtb_t *vtb, int pos)
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{
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vtb->vtb_tail = pos%vtb->vtb_size;
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}
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void
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sc_vtb_erase(sc_vtb_t *vtb, int at, int count, int c, int attr)
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{
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if (at + count > vtb->vtb_size)
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count = vtb->vtb_size - at;
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if (vtb->vtb_type == VTB_FRAMEBUFFER)
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fillw_io(attr | c, sc_vtb_pointer(vtb, at), count);
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else
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fillw(attr | c, (void *)sc_vtb_pointer(vtb, at), count);
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}
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void
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sc_vtb_move(sc_vtb_t *vtb, int from, int to, int count)
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{
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if (from + count > vtb->vtb_size)
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count = vtb->vtb_size - from;
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if (to + count > vtb->vtb_size)
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count = vtb->vtb_size - to;
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if (count <= 0)
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return;
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if (vtb->vtb_type == VTB_FRAMEBUFFER) {
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bcopy_io(sc_vtb_pointer(vtb, from),
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sc_vtb_pointer(vtb, to), count*sizeof(u_int16_t));
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} else {
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bcopy((void *)sc_vtb_pointer(vtb, from),
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(void *)sc_vtb_pointer(vtb, to), count*sizeof(u_int16_t));
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}
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}
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void
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sc_vtb_delete(sc_vtb_t *vtb, int at, int count, int c, int attr)
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{
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int len;
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if (at + count > vtb->vtb_size)
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count = vtb->vtb_size - at;
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len = vtb->vtb_size - at - count;
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if (len > 0) {
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if (vtb->vtb_type == VTB_FRAMEBUFFER) {
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bcopy_io(sc_vtb_pointer(vtb, at + count),
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sc_vtb_pointer(vtb, at),
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len*sizeof(u_int16_t));
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} else {
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bcopy((void *)sc_vtb_pointer(vtb, at + count),
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(void *)sc_vtb_pointer(vtb, at),
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len*sizeof(u_int16_t));
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}
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}
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if (vtb->vtb_type == VTB_FRAMEBUFFER)
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fillw_io(attr | c, sc_vtb_pointer(vtb, at + len),
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vtb->vtb_size - at - len);
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else
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fillw(attr | c, (void *)sc_vtb_pointer(vtb, at + len),
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vtb->vtb_size - at - len);
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}
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void
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sc_vtb_ins(sc_vtb_t *vtb, int at, int count, int c, int attr)
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{
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if (at + count > vtb->vtb_size) {
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count = vtb->vtb_size - at;
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} else {
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if (vtb->vtb_type == VTB_FRAMEBUFFER) {
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bcopy_io(sc_vtb_pointer(vtb, at),
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sc_vtb_pointer(vtb, at + count),
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(vtb->vtb_size - at - count)*sizeof(u_int16_t));
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} else {
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bcopy((void *)sc_vtb_pointer(vtb, at),
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(void *)sc_vtb_pointer(vtb, at + count),
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(vtb->vtb_size - at - count)*sizeof(u_int16_t));
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}
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}
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if (vtb->vtb_type == VTB_FRAMEBUFFER)
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fillw_io(attr | c, sc_vtb_pointer(vtb, at), count);
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else
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fillw(attr | c, (void *)sc_vtb_pointer(vtb, at), count);
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}
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