/* $NetBSD: ite_et.c,v 1.31.2.1 2022/09/11 18:10:23 martin 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. * * 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 __KERNEL_RCSID(0, "$NetBSD: ite_et.c,v 1.31.2.1 2022/09/11 18:10:23 martin Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #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(struct grf_softc *); static void view_init(struct ite_softc *); static void view_deinit(struct ite_softc *); static int iteet_ioctl(struct ite_softc *, u_long, void *, int, struct lwp *); static int ite_newsize(struct ite_softc *, struct itewinsize *); static void et_inittextmode(struct ite_softc *, et_sv_reg_t *, int); void et_cursor(struct ite_softc *ip, int flag); void et_clear(struct ite_softc *ip, int sy, int sx, int h, int w); void et_putc(struct ite_softc *ip, int c, int dy, int dx, int mode); void et_scroll(struct ite_softc *ip, int sy, int sx, int count, int dir); /* * grfet config stuff */ static void grfetattach(device_t, device_t, void *); static int grfetmatch(device_t, cfdata_t, void *); static int grfetprint(void *, const char *); CFATTACH_DECL_NEW(grfet, sizeof(struct grf_softc), grfetmatch, grfetattach, NULL, NULL); /* * only used in console init. */ static struct cfdata *cfdata_grf = NULL; static int grfetmatch(device_t parent, cfdata_t cf, void *aux) { static int card_probed = -1; static int did_consinit = 0; grf_auxp_t *grf_auxp = aux; extern const struct cdevsw view_cdevsw; 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 first unit. */ if (did_consinit) return 0; if ((*view_cdevsw.d_open)(cf->cf_unit, 0, 0, NULL)) return 0; cfdata_grf = cf; did_consinit = 1; return 1; } /* * Normal config. When we are called directly from the grfbus, * we only match the first unit. The attach function will call us for * the other configured units. */ if (grf_auxp->from_bus_match && ((did_consinit > 1) || !et_probe_card())) return 0; if (!grf_auxp->from_bus_match && (grf_auxp->unit != cf->cf_unit)) return 0; /* * Final constraint: each grf needs a view.... */ if ((cfdata_grf == NULL) || (did_consinit > 1)) { if ((*view_cdevsw.d_open)(cf->cf_unit, 0, 0, NULL)) return 0; } did_consinit = 2; return 1; } /* * attach: initialize the grf-structure and try to attach an ite to us. * note : self is NULL during early console init. */ static void grfetattach(device_t parent, device_t self, void *aux) { static struct grf_softc congrf; static int first_attach = 1; grf_auxp_t *grf_bus_auxp = aux; grf_auxp_t grf_auxp; struct grf_softc *sc; int maj; extern const struct cdevsw grf_cdevsw; /* * find our major device number */ maj = cdevsw_lookup_major(&grf_cdevsw); /* * Handle exception case: early console init */ if (self == NULL) { struct device itedev; memset(&itedev, 0, sizeof(itedev)); itedev.dv_private = &congrf; congrf.g_unit = cfdata_grf->cf_unit; congrf.g_grfdev = makedev(maj, congrf.g_unit); 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, &itedev, &congrf, grfetprint); return; } sc = device_private(self); sc->g_device = self; sc->g_unit = device_unit(self); grfsp[sc->g_unit] = sc; if ((cfdata_grf != NULL) && (sc->g_unit == congrf.g_unit)) { /* * We inited earlier just copy the info, take care * not to copy the device struct though. */ memcpy(&sc->g_display, &congrf.g_display, (char *)&sc[1] - (char *)&sc->g_display); } else { sc->g_grfdev = makedev(maj, sc->g_unit); sc->g_itedev = (dev_t)-1; sc->g_flags = GF_ALIVE; sc->g_mode = grf_mode; sc->g_conpri = 0; sc->g_viewdev = sc->g_unit; grfet_iteinit(sc); grf_viewsync(sc); } printf(": %dx%d", sc->g_display.gd_dwidth, sc->g_display.gd_dheight); if (sc->g_display.gd_colors == 2) printf(" monochrome\n"); else printf(" colors %d\n", sc->g_display.gd_colors); /* * try and attach an ite */ config_found(self, sc /* XXX */, grfetprint); /* * If attaching the first unit, go ahead and 'find' the rest of us */ if (first_attach) { first_attach = 0; grf_auxp.from_bus_match = 0; for (grf_auxp.unit=0; grf_auxp.unit < NGRFET; grf_auxp.unit++) { config_found(parent, (void*)&grf_auxp, grf_bus_auxp->busprint); } } } static int grfetprint(void *aux, const char *pnp) { if (pnp) /* XXX */ aprint_normal("ite at %s", pnp); return UNCONF; } /* * Init ite portion of grf_softc struct */ static void grfet_iteinit(struct grf_softc *sc) { sc->g_itecursor = et_cursor; sc->g_iteputc = et_putc; sc->g_iteclear = et_clear; sc->g_itescroll = et_scroll; sc->g_iteinit = view_init; sc->g_itedeinit = view_deinit; } static void view_deinit(struct ite_softc *ip) { ip->flags &= ~ITE_INITED; } static void view_init(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 = malloc(sizeof(*cci), M_DEVBUF, M_WAITOK); if (cci == NULL) panic("No memory for ite-view"); memset(cci, 0, 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(struct ite_softc *ip, struct itewinsize *winsz) { struct view_size vs; int error = 0; save_area_t *et_save; view_t *view; extern const struct cdevsw view_cdevsw; vs.x = winsz->x; vs.y = winsz->y; vs.width = winsz->width; vs.height = winsz->height; vs.depth = winsz->depth; error = (*view_cdevsw.d_ioctl)(ip->grf->g_viewdev, VIOCSSIZE, (void *)&vs, 0, NOLWP); 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(struct ite_softc *ip, u_long cmd, void * addr, int flag, struct lwp *l) { struct winsize ws; struct itewinsize *is; int error = 0; view_t *view = viewview(ip->grf->g_viewdev); extern const struct cdevsw ite_cdevsw; extern const struct cdevsw view_cdevsw; 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 */ (*ite_cdevsw.d_ioctl)(ip->grf->g_itedev, TIOCSWINSZ, (void *)&ws, 0, l); } break; case VIOCSCMAP: case VIOCGCMAP: /* * XXX watchout for that NOLWP. its not really the kernel * XXX talking these two commands don't use the proc pointer * XXX though. */ error = (*view_cdevsw.d_ioctl)(ip->grf->g_viewdev, cmd, addr, flag, NOLWP); break; default: error = EPASSTHROUGH; break; } return error; } void et_cursor(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(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; /* * Handle DEC special graphics character by 'ESC ( B' sequence. * Note we assume all font data (fontdata_8x8 and fontdata_8x16) * contain DEC graphics glyph (for 0x5f to 0x7e) at 0x00 to 0x1F. */ if (*ip->GL == CSET_DECGRAPH) { if (ip->font.font_lo == 0 && c >= 0x5f && c <= 0x7e) c -= 0x5f; } 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(struct ite_softc *ip, int sy, int sx, int h, int w) { /* et_clear and et_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(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(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); }