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NetBSD/sys/arch/atari/dev/ite_et.c

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/* $NetBSD: ite_et.c,v 1.7 1997/07/15 06:48:06 leo Exp $ */
/*
* Copyright (c) 1996 Leo Weppelman.
* 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 by Leo Weppelman.
* 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/systm.h>
#include <sys/conf.h>
#include <sys/ioctl.h>
#include <sys/malloc.h>
#include <sys/device.h>
#include <dev/cons.h>
#include <machine/cpu.h>
#include <atari/atari/device.h>
#include <atari/dev/itevar.h>
#include <atari/dev/iteioctl.h>
#include <atari/dev/grfioctl.h>
#include <atari/dev/grf_etreg.h>
#include <atari/dev/grfabs_reg.h>
#include <atari/dev/grfabs_et.h>
#include <atari/dev/grfvar.h>
#include <atari/dev/font.h>
#include <atari/dev/viewioctl.h>
#include <atari/dev/viewvar.h>
#include "grfet.h"
/*
* This is what ip->priv points to;
* it contains local variables for custom-chip ites.
*/
struct ite_priv {
volatile u_char *regkva;
};
typedef struct ite_priv ipriv_t;
static ipriv_t con_ipriv;
/* Console colors */
static u_char etconscolors[3][3] = { /* background, foreground, hilite */
{0x0, 0x0, 0x0}, {0x30, 0x30, 0x30}, { 0x3f, 0x3f, 0x3f}
};
/* XXX: Shouldn't these be in font.h???? */
extern font_info font_info_8x8;
extern font_info font_info_8x16;
static void grfet_iteinit __P((struct grf_softc *));
static void view_init __P((struct ite_softc *));
static void view_deinit __P((struct ite_softc *));
static int iteet_ioctl __P((struct ite_softc *, u_long, caddr_t, int,
struct proc *));
static int ite_newsize __P((struct ite_softc *, struct itewinsize *));
static void et_inittextmode __P((struct ite_softc *, et_sv_reg_t *, int));
void et_cursor __P((struct ite_softc *ip, int flag));
void et_clear __P((struct ite_softc *ip, int sy, int sx, int h, int w));
void et_putc __P((struct ite_softc *ip, int c, int dy, int dx, int mode));
void et_scroll __P((struct ite_softc *ip, int sy, int sx, int count,
int dir));
/* XXX: move to ite.c */
extern int ite_default_x;
extern int ite_default_y;
extern int ite_default_width;
extern int ite_default_depth;
extern int ite_default_height;
/*
* grfet config stuff
*/
void grfetattach __P((struct device *, struct device *, void *));
int grfetmatch __P((struct device *, struct cfdata *, void *));
int grfetprint __P((void *, const char *));
struct cfattach grfet_ca = {
sizeof(struct grf_softc), grfetmatch, grfetattach
};
struct cfdriver grfet_cd = {
NULL, "grfet", DV_DULL
};
/*
* only used in console init.
*/
static struct cfdata *cfdata_grf = NULL;
int
grfetmatch(pdp, cfp, auxp)
struct device *pdp;
struct cfdata *cfp;
void *auxp;
{
static int card_probed = -1;
grf_auxp_t *grf_auxp = auxp;
if (card_probed <= 0) {
if (card_probed == 0) /* Probed but failed */
return 0;
card_probed = 0;
/*
* Check if the layers we depend on exist
*/
if(!(machineid & ATARI_HADES))
return 0;
if (!et_probe_card())
return 0;
if (grfabs_probe(&et_probe_video) == 0)
return 0;
viewprobe();
card_probed = 1; /* Probed and found */
}
if (atari_realconfig == 0) {
/*
* Early console init. Only match unit 0.
*/
if (cfp->cf_unit != 0)
return 0;
if (viewopen(0, 0, 0, NULL))
return 0;
cfdata_grf = cfp;
return 1;
}
/*
* Normal config. When we are called directly from the grfbus,
* we only match unit 0. The attach function will call us for
* the other configured units.
*/
if (grf_auxp->from_bus_match
&& ((cfp->cf_unit != 0) || !et_probe_card()))
return 0;
if (!grf_auxp->from_bus_match && (grf_auxp->unit != cfp->cf_unit))
return 0;
/*
* Final constraint: each grf needs a view....
*/
if((cfdata_grf == NULL) || (cfp->cf_unit != 0)) {
if(viewopen(cfp->cf_unit, 0, 0, NULL))
return 0;
}
return 1;
}
/*
* attach: initialize the grf-structure and try to attach an ite to us.
* note : dp is NULL during early console init.
*/
void
grfetattach(pdp, dp, auxp)
struct device *pdp, *dp;
void *auxp;
{
static struct grf_softc congrf;
grf_auxp_t *grf_bus_auxp = auxp;
grf_auxp_t grf_auxp;
struct grf_softc *gp;
int maj;
/*
* find our major device number
*/
for(maj = 0; maj < nchrdev; maj++)
if (cdevsw[maj].d_open == grfopen)
break;
/*
* Handle exeption case: early console init
*/
if(dp == NULL) {
congrf.g_unit = 0;
congrf.g_grfdev = makedev(maj, 0);
congrf.g_itedev = (dev_t)-1;
congrf.g_flags = GF_ALIVE;
congrf.g_mode = grf_mode;
congrf.g_conpri = CN_INTERNAL;
congrf.g_viewdev = congrf.g_unit;
grfet_iteinit(&congrf);
grf_viewsync(&congrf);
/* Attach console ite */
atari_config_found(cfdata_grf, NULL, &congrf, grfetprint);
return;
}
gp = (struct grf_softc *)dp;
gp->g_unit = gp->g_device.dv_unit;
grfsp[gp->g_unit] = gp;
if((cfdata_grf != NULL) && (gp->g_unit == 0)) {
/*
* We inited earlier just copy the info, take care
* not to copy the device struct though.
*/
bcopy(&congrf.g_display, &gp->g_display,
(char *)&gp[1] - (char *)&gp->g_display);
}
else {
gp->g_grfdev = makedev(maj, gp->g_unit);
gp->g_itedev = (dev_t)-1;
gp->g_flags = GF_ALIVE;
gp->g_mode = grf_mode;
gp->g_conpri = 0;
gp->g_viewdev = gp->g_unit;
grfet_iteinit(gp);
grf_viewsync(gp);
}
printf(": %dx%d", gp->g_display.gd_dwidth, gp->g_display.gd_dheight);
if(gp->g_display.gd_colors == 2)
printf(" monochrome\n");
else printf(" colors %d\n", gp->g_display.gd_colors);
/*
* try and attach an ite
*/
config_found(dp, gp, grfetprint);
/*
* If attaching unit 0, go ahead and 'find' the rest of us
*/
if (gp->g_unit == 0) {
grf_auxp.from_bus_match = 0;
for (grf_auxp.unit=0; grf_auxp.unit < NGRFET; grf_auxp.unit++) {
config_found(pdp, (void*)&grf_auxp, grf_bus_auxp->busprint);
}
}
}
int
grfetprint(auxp, pnp)
void *auxp;
const char *pnp;
{
if(pnp) /* XXX */
printf("ite at %s", pnp);
return(UNCONF);
}
/*
* Init ite portion of grf_softc struct
*/
static void
grfet_iteinit(gp)
struct grf_softc *gp;
{
gp->g_itecursor = et_cursor;
gp->g_iteputc = et_putc;
gp->g_iteclear = et_clear;
gp->g_itescroll = et_scroll;
gp->g_iteinit = view_init;
gp->g_itedeinit = view_deinit;
}
static void
view_deinit(ip)
struct ite_softc *ip;
{
ip->flags &= ~ITE_INITED;
}
static void
view_init(ip)
register struct ite_softc *ip;
{
struct itewinsize wsz;
ipriv_t *cci;
view_t *view;
save_area_t *et_save;
if((cci = ip->priv) != NULL)
return;
ip->itexx_ioctl = iteet_ioctl;
#if defined(KFONT_8X8)
ip->font = font_info_8x8;
#else
ip->font = font_info_8x16;
#endif
/* Find the correct set of rendering routines for this font. */
if(ip->font.width != 8)
panic("kernel font size not supported");
if(!atari_realconfig)
ip->priv = cci = &con_ipriv;
else ip->priv = cci = (ipriv_t*)malloc(sizeof(*cci), M_DEVBUF,M_WAITOK);
if(cci == NULL)
panic("No memory for ite-view");
bzero(cci, sizeof(*cci));
wsz.x = ite_default_x;
wsz.y = ite_default_y;
wsz.width = ite_default_width;
wsz.height = ite_default_height;
wsz.depth = ite_default_depth;
ite_newsize (ip, &wsz);
view = viewview(ip->grf->g_viewdev);
cci->regkva = view->bitmap->regs;
/*
* Only console will be turned on by default..
*/
if(ip->flags & ITE_ISCONS)
ip->grf->g_mode(ip->grf, GM_GRFON, NULL, 0, 0);
/*
* Activate text-mode settings
*/
et_save = (save_area_t *)view->save_area;
if (et_save == NULL)
et_inittextmode(ip, NULL, view->flags & VF_DISPLAY);
else {
et_inittextmode(ip, &et_save->sv_regs, view->flags&VF_DISPLAY);
et_save->fb_size = ip->cols * ip->rows;
}
}
static int
ite_newsize(ip, winsz)
struct ite_softc *ip;
struct itewinsize *winsz;
{
struct view_size vs;
int error = 0;
save_area_t *et_save;
view_t *view;
vs.x = winsz->x;
vs.y = winsz->y;
vs.width = winsz->width;
vs.height = winsz->height;
vs.depth = winsz->depth;
error = viewioctl(ip->grf->g_viewdev, VIOCSSIZE, (caddr_t)&vs, 0,
NOPROC);
view = viewview(ip->grf->g_viewdev);
/*
* Reinitialize our structs
*/
ip->cols = view->display.width / ip->font.width;
ip->rows = view->display.height / ip->font.height;
/*
* save new values so that future opens use them
* this may not be correct when we implement Virtual Consoles
*/
ite_default_height = view->display.height;
ite_default_width = view->display.width;
ite_default_x = view->display.x;
ite_default_y = view->display.y;
ite_default_depth = view->bitmap->depth;
et_save = (save_area_t *)view->save_area;
if (et_save == NULL)
et_inittextmode(ip, NULL, view->flags & VF_DISPLAY);
else {
et_inittextmode(ip, &et_save->sv_regs, view->flags & VF_DISPLAY);
et_save->fb_size = ip->cols * ip->rows;
}
et_clear(ip, 0, 0, ip->rows, ip->cols);
return(error);
}
int
iteet_ioctl(ip, cmd, addr, flag, p)
struct ite_softc *ip;
u_long cmd;
caddr_t addr;
int flag;
struct proc *p;
{
struct winsize ws;
struct itewinsize *is;
int error = 0;
view_t *view = viewview(ip->grf->g_viewdev);
switch (cmd) {
case ITEIOCSWINSZ:
is = (struct itewinsize *)addr;
if(ite_newsize(ip, is))
error = ENOMEM;
else {
view = viewview(ip->grf->g_viewdev);
ws.ws_row = ip->rows;
ws.ws_col = ip->cols;
ws.ws_xpixel = view->display.width;
ws.ws_ypixel = view->display.height;
ite_reset(ip);
/*
* XXX tell tty about the change
* XXX this is messy, but works
*/
iteioctl(ip->grf->g_itedev,TIOCSWINSZ,(caddr_t)&ws,0,p);
}
break;
case VIOCSCMAP:
case VIOCGCMAP:
/*
* XXX watchout for that NOPROC. its not really the kernel
* XXX talking these two commands don't use the proc pointer
* XXX though.
*/
error = viewioctl(ip->grf->g_viewdev, cmd, addr, flag, NOPROC);
break;
default:
error = -1;
break;
}
return (error);
}
void
et_cursor(ip, flag)
struct ite_softc *ip;
int flag;
{
volatile u_char *ba;
view_t *v;
u_long cpos;
ba = ((ipriv_t*)ip->priv)->regkva;
v = viewview(ip->grf->g_viewdev);
/*
* Don't update the cursor when not on display
*/
if (!(v->flags & VF_DISPLAY))
return;
switch (flag) {
case DRAW_CURSOR:
/*WCrt(ba, CRT_ID_CURSOR_START, & ~0x20); */
case MOVE_CURSOR:
cpos = RCrt(ba, CRT_ID_START_ADDR_LOW) & 0xff;
cpos |= (RCrt(ba, CRT_ID_START_ADDR_HIGH) & 0xff) << 8;
cpos += ip->curx + ip->cury * ip->cols;
WCrt(ba, CRT_ID_CURSOR_LOC_LOW, cpos & 0xff);
WCrt(ba, CRT_ID_CURSOR_LOC_HIGH, (cpos >> 8) & 0xff);
WCrt(ba, CTR_ID_EXT_START, (cpos >> (16-2)) & 0x0c);
ip->cursorx = ip->curx;
ip->cursory = ip->cury;
break;
case ERASE_CURSOR:
/*WCrt(ba, CRT_ID_CURSOR_START, | 0x20); */
case START_CURSOROPT:
case END_CURSOROPT:
default:
break;
}
}
void
et_putc(ip, c, dy, dx, mode)
struct ite_softc *ip;
int c;
int dy;
int dx;
int mode;
{
view_t *v = viewview(ip->grf->g_viewdev);
u_char attr;
u_short *cp;
attr = (unsigned char) ((mode & ATTR_INV) ? (0x70) : (0x07));
if (mode & ATTR_UL) attr |= 0x01;
if (mode & ATTR_BOLD) attr |= 0x08;
if (mode & ATTR_BLINK) attr |= 0x80;
cp = (u_short*)v->bitmap->plane;
cp[(dy * ip->cols) + dx] = (c << 8) | attr;
}
void
et_clear(ip, sy, sx, h, w)
struct ite_softc *ip;
int sy;
int sx;
int h;
int w;
{
/* cl_clear and cl_scroll both rely on ite passing arguments
* which describe continuous regions. For a VT200 terminal,
* this is safe behavior.
*/
view_t *v = viewview(ip->grf->g_viewdev);
u_short *dest;
int len;
dest = (u_short *)v->bitmap->plane + (sy * ip->cols) + sx;
for(len = w * h; len-- ;)
*dest++ = 0x2007;
}
void
et_scroll(ip, sy, sx, count, dir)
struct ite_softc *ip;
int sy;
int sx;
int count;
int dir;
{
view_t *v = viewview(ip->grf->g_viewdev);
u_short *fb;
u_short *src, *dst;
int len;
fb = (u_short*)v->bitmap->plane + sy * ip->cols;
switch (dir) {
case SCROLL_UP:
src = fb;
dst = fb - count * ip->cols;
len = (ip->bottom_margin + 1 - sy) * ip->cols;
break;
case SCROLL_DOWN:
src = fb;
dst = fb + count * ip->cols;
len = (ip->bottom_margin + 1 - (sy + count)) * ip->cols;
break;
case SCROLL_RIGHT:
src = fb + sx;
dst = fb + sx + count;
len = ip->cols - sx + count;
break;
case SCROLL_LEFT:
src = fb + sx;
dst = fb + sx - count;
len = ip->cols - sx;
break;
default:
return;
}
if (src > dst) {
while (len--)
*dst++ = *src++;
}
else {
src = &src[len];
dst = &dst[len];
while (len--)
*--dst = *--src;
}
}
static void
et_inittextmode(ip, etregs, loadfont)
struct ite_softc *ip;
et_sv_reg_t *etregs;
int loadfont;
{
volatile u_char *ba;
font_info *fd;
u_char *fb;
u_char *c, *f, tmp;
u_short z, y;
int s;
view_t *v = viewview(ip->grf->g_viewdev);
et_sv_reg_t loc_regs;
if (etregs == NULL) {
etregs = &loc_regs;
et_hwsave(etregs);
}
ba = ((ipriv_t*)ip->priv)->regkva;
fb = v->bitmap->plane;
#if defined(KFONT_8X8)
fd = &font_info_8x8;
#else
fd = &font_info_8x16;
#endif
if (loadfont) { /* XXX: We should set the colormap */
/*
* set colors (B&W)
*/
vgaw(ba, VDAC_ADDRESS_W, 0);
for (z = 0; z < 256; z++) {
y = (z & 1) ? ((z > 7) ? 2 : 1) : 0;
vgaw(ba, VDAC_DATA, etconscolors[y][0]);
vgaw(ba, VDAC_DATA, etconscolors[y][1]);
vgaw(ba, VDAC_DATA, etconscolors[y][2]);
}
/*
* Enter a suitable mode to download the font. This
* basically means sequential addressing mode
*/
s = splhigh();
WAttr(ba, 0x20 | ACT_ID_ATTR_MODE_CNTL, 0x0a);
WSeq(ba, SEQ_ID_MAP_MASK, 0x04);
WSeq(ba, SEQ_ID_MEMORY_MODE, 0x06);
WGfx(ba, GCT_ID_READ_MAP_SELECT, 0x02);
WGfx(ba, GCT_ID_GRAPHICS_MODE, 0x00);
WGfx(ba, GCT_ID_MISC, 0x04);
splx(s);
/*
* load text font into beginning of display memory. Each
* character cell is 32 bytes long (enough for 4 planes)
*/
for (z = 0, c = fb; z < 256 * 32; z++)
*c++ = 0;
c = (unsigned char *) (fb) + (32 * fd->font_lo);
f = fd->font_p;
z = fd->font_lo;
for (; z <= fd->font_hi; z++, c += (32 - fd->height))
for (y = 0; y < fd->height; y++) {
*c++ = *f++;
}
}
/*
* Odd/Even addressing
*/
etregs->seq[SEQ_ID_MAP_MASK] = 0x03;
etregs->seq[SEQ_ID_MEMORY_MODE] = 0x03;
etregs->grf[GCT_ID_READ_MAP_SELECT] = 0x00;
etregs->grf[GCT_ID_GRAPHICS_MODE] = 0x10;
etregs->grf[GCT_ID_MISC] = 0x06;
/*
* Font height + underline location
*/
tmp = etregs->crt[CRT_ID_MAX_ROW_ADDRESS] & 0xe0;
etregs->crt[CRT_ID_MAX_ROW_ADDRESS] = tmp | (fd->height - 1);
tmp = etregs->crt[CRT_ID_UNDERLINE_LOC] & 0xe0;
etregs->crt[CRT_ID_UNDERLINE_LOC] = tmp | (fd->height - 1);
/*
* Cursor setup
*/
etregs->crt[CRT_ID_CURSOR_START] = 0x00;
etregs->crt[CRT_ID_CURSOR_END] = fd->height - 1;
etregs->crt[CRT_ID_CURSOR_LOC_HIGH] = 0x00;
etregs->crt[CRT_ID_CURSOR_LOC_LOW] = 0x00;
/*
* Enter text mode
*/
etregs->crt[CRT_ID_MODE_CONTROL] = 0xa3;
etregs->attr[ACT_ID_ATTR_MODE_CNTL] = 0x0a;
#if 1
if (loadfont || (etregs == &loc_regs))
#else
if (etregs == &loc_regs)
#endif
et_hwrest(etregs);
}
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