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NetBSD/sys/arch/vax/vsa/smg.c

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/* $NetBSD: smg.c,v 1.24 2000/07/26 21:50:49 matt Exp $ */
/*
* Copyright (c) 1998 Ludd, University of Lule}, Sweden.
* 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.
* 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 at Ludd, University of
* Lule}, Sweden and its contributors.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#include <sys/param.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <sys/callout.h>
#include <sys/time.h>
#include <sys/malloc.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <dev/cons.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wscons_callbacks.h>
#include <machine/vsbus.h>
#include <machine/sid.h>
#include <machine/cpu.h>
#include <machine/ka420.h>
#include "lkc.h"
#define SM_COLS 128 /* char width of screen */
#define SM_ROWS 57 /* rows of char on screen */
#define SM_CHEIGHT 15 /* lines a char consists of */
#define SM_NEXTROW (SM_COLS * SM_CHEIGHT)
static int smg_match(struct device *, struct cfdata *, void *);
static void smg_attach(struct device *, struct device *, void *);
struct smg_softc {
struct device ss_dev;
};
struct cfattach smg_ca = {
sizeof(struct smg_softc), smg_match, smg_attach,
};
static void smg_cursor(void *, int, int, int);
static int smg_mapchar(void *, int, unsigned int *);
static void smg_putchar(void *, int, int, u_int, long);
static void smg_copycols(void *, int, int, int,int);
static void smg_erasecols(void *, int, int, int, long);
static void smg_copyrows(void *, int, int, int);
static void smg_eraserows(void *, int, int, long);
static int smg_alloc_attr(void *, int, int, int, long *);
const struct wsdisplay_emulops smg_emulops = {
smg_cursor,
smg_mapchar,
smg_putchar,
smg_copycols,
smg_erasecols,
smg_copyrows,
smg_eraserows,
smg_alloc_attr
};
const struct wsscreen_descr smg_stdscreen = {
"128x57", SM_COLS, SM_ROWS,
&smg_emulops,
8, SM_CHEIGHT,
WSSCREEN_UNDERLINE|WSSCREEN_REVERSE,
};
const struct wsscreen_descr *_smg_scrlist[] = {
&smg_stdscreen,
};
const struct wsscreen_list smg_screenlist = {
sizeof(_smg_scrlist) / sizeof(struct wsscreen_descr *),
_smg_scrlist,
};
static caddr_t sm_addr;
extern char q_font[];
#define QCHAR(c) (c < 32 ? 32 : (c > 127 ? c - 66 : c - 32))
#define QFONT(c,line) q_font[QCHAR(c) * 15 + line]
#define SM_ADDR(row, col, line) \
sm_addr[col + (row * SM_CHEIGHT * SM_COLS) + line * SM_COLS]
static int smg_ioctl(void *, u_long, caddr_t, int, struct proc *);
static paddr_t smg_mmap(void *, off_t, int);
static int smg_alloc_screen(void *, const struct wsscreen_descr *,
void **, int *, int *, long *);
static void smg_free_screen(void *, void *);
static int smg_show_screen(void *, void *, int,
void (*) (void *, int, int), void *);
static void smg_crsr_blink(void *);
const struct wsdisplay_accessops smg_accessops = {
smg_ioctl,
smg_mmap,
smg_alloc_screen,
smg_free_screen,
smg_show_screen,
0 /* load_font */
};
struct smg_screen {
int ss_curx;
int ss_cury;
u_char ss_image[SM_ROWS][SM_COLS]; /* Image of current screen */
u_char ss_attr[SM_ROWS][SM_COLS]; /* Reversed etc... */
};
static struct smg_screen smg_conscreen;
static struct smg_screen *curscr;
static struct callout smg_cursor_ch = CALLOUT_INITIALIZER;
int
smg_match(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct vsbus_attach_args *va = aux;
volatile short *curcmd;
volatile short *cfgtst;
short tmp, tmp2;
if (vax_boardtype == VAX_BTYP_49)
return 0;
curcmd = (short *)va->va_addr;
cfgtst = (short *)vax_map_physmem(VS_CFGTST, 1);
/*
* Try to find the cursor chip by testing the flip-flop.
* If nonexistent, no glass tty.
*/
curcmd[0] = 0x7fff;
DELAY(300000);
tmp = cfgtst[0];
curcmd[0] = 0x8000;
DELAY(300000);
tmp2 = cfgtst[0];
vax_unmap_physmem((vaddr_t)cfgtst, 1);
if (tmp2 != tmp)
return 20; /* Using periodic interrupt */
else
return 0;
}
void
smg_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct wsemuldisplaydev_attach_args aa;
printf("\n");
sm_addr = (caddr_t)vax_map_physmem(SMADDR, (SMSIZE/VAX_NBPG));
if (sm_addr == 0) {
printf("%s: Couldn't alloc graphics memory.\n", self->dv_xname);
return;
}
curscr = &smg_conscreen;
aa.console = !(vax_confdata & 0x20);
aa.scrdata = &smg_screenlist;
aa.accessops = &smg_accessops;
callout_reset(&smg_cursor_ch, hz / 2, smg_crsr_blink, NULL);
config_found(self, &aa, wsemuldisplaydevprint);
}
static u_char *cursor;
static int cur_on;
static void
smg_crsr_blink(arg)
void *arg;
{
if (cur_on)
*cursor ^= 255;
callout_reset(&smg_cursor_ch, hz / 2, smg_crsr_blink, NULL);
}
void
smg_cursor(id, on, row, col)
void *id;
int on, row, col;
{
struct smg_screen *ss = id;
if (ss == curscr) {
SM_ADDR(ss->ss_cury, ss->ss_curx, 14) =
QFONT(ss->ss_image[ss->ss_cury][ss->ss_curx], 14);
cursor = &SM_ADDR(row, col, 14);
if ((cur_on = on))
*cursor ^= 255;
}
ss->ss_curx = col;
ss->ss_cury = row;
}
int
smg_mapchar(id, uni, index)
void *id;
int uni;
unsigned int *index;
{
if (uni < 256) {
*index = uni;
return (5);
}
*index = ' ';
return (0);
}
static void
smg_putchar(id, row, col, c, attr)
void *id;
int row, col;
u_int c;
long attr;
{
struct smg_screen *ss = id;
int i;
c &= 0xff;
ss->ss_image[row][col] = c;
ss->ss_attr[row][col] = attr;
if (ss != curscr)
return;
for (i = 0; i < 15; i++) {
unsigned char ch = QFONT(c, i);
SM_ADDR(row, col, i) = (attr & WSATTR_REVERSE ? ~ch : ch);
}
if (attr & WSATTR_UNDERLINE)
SM_ADDR(row, col, 14) ^= SM_ADDR(row, col, 14);
}
/*
* copies columns inside a row.
*/
static void
smg_copycols(id, row, srccol, dstcol, ncols)
void *id;
int row, srccol, dstcol, ncols;
{
struct smg_screen *ss = id;
int i;
bcopy(&ss->ss_image[row][srccol], &ss->ss_image[row][dstcol], ncols);
bcopy(&ss->ss_attr[row][srccol], &ss->ss_attr[row][dstcol], ncols);
if (ss != curscr)
return;
for (i = 0; i < SM_CHEIGHT; i++)
bcopy(&SM_ADDR(row,srccol, i), &SM_ADDR(row, dstcol, i),ncols);
}
/*
* Erases a bunch of chars inside one row.
*/
static void
smg_erasecols(id, row, startcol, ncols, fillattr)
void *id;
int row, startcol, ncols;
long fillattr;
{
struct smg_screen *ss = id;
int i;
bzero(&ss->ss_image[row][startcol], ncols);
bzero(&ss->ss_attr[row][startcol], ncols);
if (ss != curscr)
return;
for (i = 0; i < SM_CHEIGHT; i++)
bzero(&SM_ADDR(row, startcol, i), ncols);
}
static void
smg_copyrows(id, srcrow, dstrow, nrows)
void *id;
int srcrow, dstrow, nrows;
{
struct smg_screen *ss = id;
int frows;
bcopy(&ss->ss_image[srcrow][0], &ss->ss_image[dstrow][0],
nrows * SM_COLS);
bcopy(&ss->ss_attr[srcrow][0], &ss->ss_attr[dstrow][0],
nrows * SM_COLS);
if (ss != curscr)
return;
if (nrows > 25) {
frows = nrows >> 1;
if (srcrow > dstrow) {
bcopy(&sm_addr[(srcrow * SM_NEXTROW)],
&sm_addr[(dstrow * SM_NEXTROW)],
frows * SM_NEXTROW);
bcopy(&sm_addr[((srcrow + frows) * SM_NEXTROW)],
&sm_addr[((dstrow + frows) * SM_NEXTROW)],
(nrows - frows) * SM_NEXTROW);
} else {
bcopy(&sm_addr[((srcrow + frows) * SM_NEXTROW)],
&sm_addr[((dstrow + frows) * SM_NEXTROW)],
(nrows - frows) * SM_NEXTROW);
bcopy(&sm_addr[(srcrow * SM_NEXTROW)],
&sm_addr[(dstrow * SM_NEXTROW)],
frows * SM_NEXTROW);
}
} else
bcopy(&sm_addr[(srcrow * SM_NEXTROW)],
&sm_addr[(dstrow * SM_NEXTROW)], nrows * SM_NEXTROW);
}
static void
smg_eraserows(id, startrow, nrows, fillattr)
void *id;
int startrow, nrows;
long fillattr;
{
struct smg_screen *ss = id;
int frows;
bzero(&ss->ss_image[startrow][0], nrows * SM_COLS);
bzero(&ss->ss_attr[startrow][0], nrows * SM_COLS);
if (ss != curscr)
return;
if (nrows > 25) {
frows = nrows >> 1;
bzero(&sm_addr[(startrow * SM_NEXTROW)], frows * SM_NEXTROW);
bzero(&sm_addr[((startrow + frows) * SM_NEXTROW)],
(nrows - frows) * SM_NEXTROW);
} else
bzero(&sm_addr[(startrow * SM_NEXTROW)], nrows * SM_NEXTROW);
}
static int
smg_alloc_attr(id, fg, bg, flags, attrp)
void *id;
int fg, bg;
int flags;
long *attrp;
{
*attrp = flags;
return 0;
}
int
smg_ioctl(v, cmd, data, flag, p)
void *v;
u_long cmd;
caddr_t data;
int flag;
struct proc *p;
{
struct wsdisplay_fbinfo fb;
switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_PM_MONO;
break;
case WSDISPLAYIO_GINFO:
fb.height = 864;
fb.width = 1024;
return copyout(&fb, data, sizeof(struct wsdisplay_fbinfo));
default:
return -1;
}
return 0;
}
static paddr_t
smg_mmap(v, offset, prot)
void *v;
off_t offset;
int prot;
{
if (offset >= SMSIZE || offset < 0)
return -1;
return (SMADDR + offset) >> PGSHIFT;
}
int
smg_alloc_screen(v, type, cookiep, curxp, curyp, defattrp)
void *v;
const struct wsscreen_descr *type;
void **cookiep;
int *curxp, *curyp;
long *defattrp;
{
*cookiep = malloc(sizeof(struct smg_screen), M_DEVBUF, M_WAITOK);
bzero(*cookiep, sizeof(struct smg_screen));
*curxp = *curyp = *defattrp = 0;
return 0;
}
void
smg_free_screen(v, cookie)
void *v;
void *cookie;
{
}
int
smg_show_screen(v, cookie, waitok, cb, cbarg)
void *v;
void *cookie;
int waitok;
void (*cb)(void *, int, int));
void *cbarg;
{
struct smg_screen *ss = cookie;
int row, col, line;
if (ss == curscr)
return (0);
for (row = 0; row < SM_ROWS; row++)
for (line = 0; line < SM_CHEIGHT; line++) {
for (col = 0; col < SM_COLS; col++) {
u_char s, c = ss->ss_image[row][col];
if (c < 32)
c = 32;
s = QFONT(c, line);
if (ss->ss_attr[row][col] & WSATTR_REVERSE)
s ^= 255;
SM_ADDR(row, col, line) = s;
}
if (ss->ss_attr[row][col] & WSATTR_UNDERLINE)
SM_ADDR(row, col, line) = 255;
}
cursor = &sm_addr[(ss->ss_cury * SM_CHEIGHT * SM_COLS) + ss->ss_curx +
((SM_CHEIGHT - 1) * SM_COLS)];
curscr = ss;
return (0);
}
cons_decl(smg);
#define WSCONSOLEMAJOR 68
void
smgcninit(cndev)
struct consdev *cndev;
{
extern void lkccninit(struct consdev *);
extern int lkccngetc(dev_t);
/* Clear screen */
memset(sm_addr, 0, 128*864);
curscr = &smg_conscreen;
wsdisplay_cnattach(&smg_stdscreen, &smg_conscreen, 0, 0, 0);
cn_tab->cn_pri = CN_INTERNAL;
#if 0
lkccninit(cndev);
wsdisplay_set_cons_kbd(lkccngetc, nullcnpollc);
#endif
}
/*
* Called very early to setup the glass tty as console.
* Because it's called before the VM system is inited, virtual memory
* for the framebuffer can be stolen directly without disturbing anything.
*/
void
smgcnprobe(cndev)
struct consdev *cndev;
{
extern vaddr_t virtual_avail;
switch (vax_boardtype) {
case VAX_BTYP_410:
case VAX_BTYP_420:
case VAX_BTYP_43:
if ((vax_confdata & KA420_CFG_L3CON) ||
(vax_confdata & KA420_CFG_MULTU))
break; /* doesn't use graphics console */
sm_addr = (caddr_t)virtual_avail;
virtual_avail += SMSIZE;
ioaccess((vaddr_t)sm_addr, SMADDR, (SMSIZE/VAX_NBPG));
cndev->cn_pri = CN_INTERNAL;
cndev->cn_dev = makedev(WSCONSOLEMAJOR, 0);
break;
default:
break;
}
}
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