/* $OpenBSD: tga.c,v 1.7 2001/05/16 19:33:33 mickey Exp $ */ /* $NetBSD: tga.c,v 1.31 2001/02/11 19:34:58 nathanw Exp $ */ /* * Copyright (c) 1995, 1996 Carnegie-Mellon University. * All rights reserved. * * Author: Chris G. Demetriou * * Permission to use, copy, modify and distribute this software and * its documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie the * rights to redistribute these changes. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef __alpha__ #include #endif #ifdef __mips__ #include #endif int tgamatch __P((struct device *, struct cfdata *, void *)); void tgaattach __P((struct device *, struct device *, void *)); int tgaprint __P((void *, const char *)); struct cfdriver tga_cd = { NULL, "tga", DV_DULL }; struct cfattach tga_ca = { sizeof(struct tga_softc), (cfmatch_t)tgamatch, tgaattach, }; int tga_identify __P((struct tga_devconfig *)); const struct tga_conf *tga_getconf __P((int)); void tga_getdevconfig __P((bus_space_tag_t memt, pci_chipset_tag_t pc, pcitag_t tag, struct tga_devconfig *dc)); struct tga_devconfig tga_console_dc; int tga_ioctl __P((void *, u_long, caddr_t, int, struct proc *)); paddr_t tga_mmap __P((void *, off_t, int)); static void tga_copyrows __P((void *, int, int, int)); static void tga_copycols __P((void *, int, int, int, int)); static int tga_alloc_screen __P((void *, const struct wsscreen_descr *, void **, int *, int *, long *)); static void tga_free_screen __P((void *, void *)); static int tga_show_screen __P((void *, void *, int, void (*) (void *, int, int), void *)); static int tga_rop __P((struct rasops_info *, int, int, int, int, int, struct rasops_info *, int, int)); static int tga_rop_vtov __P((struct rasops_info *, int, int, int, int, int, struct rasops_info *, int, int )); static void tga_putchar __P((void *c, int row, int col, u_int uc, long attr)); static void tga_eraserows __P((void *, int, int, long)); static void tga_erasecols __P((void *, int, int, int, long)); void tga2_init __P((struct tga_devconfig *, int)); void tga_config_interrupts __P((struct device *)); /* RAMDAC interface functions */ int tga_sched_update __P((void *, void (*)(void *))); void tga_ramdac_wr __P((void *, u_int, u_int8_t)); u_int8_t tga_ramdac_rd __P((void *, u_int)); void tga_bt463_wr __P((void *, u_int, u_int8_t)); u_int8_t tga_bt463_rd __P((void *, u_int)); void tga2_ramdac_wr __P((void *, u_int, u_int8_t)); u_int8_t tga2_ramdac_rd __P((void *, u_int)); /* Interrupt handler */ int tga_intr __P((void *)); /* The NULL entries will get filled in by rasops_init(). * XXX and the non-NULL ones will be overwritten; reset after calling it. */ struct wsdisplay_emulops tga_emulops = { NULL, NULL, tga_putchar, tga_copycols, tga_erasecols, tga_copyrows, tga_eraserows, NULL, }; struct wsscreen_descr tga_stdscreen = { "std", 0, 0, /* will be filled in -- XXX shouldn't, it's global */ &tga_emulops, 0, 0, WSSCREEN_REVERSE }; const struct wsscreen_descr *_tga_scrlist[] = { &tga_stdscreen, /* XXX other formats, graphics screen? */ }; struct wsscreen_list tga_screenlist = { sizeof(_tga_scrlist) / sizeof(struct wsscreen_descr *), _tga_scrlist }; struct wsdisplay_accessops tga_accessops = { tga_ioctl, tga_mmap, tga_alloc_screen, tga_free_screen, tga_show_screen, NULL, /* load_font */ NULL /* scrollback */ }; void tga_blank __P((struct tga_devconfig *)); void tga_unblank __P((struct tga_devconfig *)); #ifdef TGA_DEBUG #define DPRINTF(...) printf (__VA_ARGS__) #define DPRINTFN(n, ...) if (tgadebug > (n)) printf (__VA_ARGS__) int tgadebug = 0; #else #define DPRINTF(...) #define DPRINTFN(n,...) #endif int tgamatch(parent, match, aux) struct device *parent; struct cfdata *match; void *aux; { struct pci_attach_args *pa = aux; if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_DEC) return (0); switch (PCI_PRODUCT(pa->pa_id)) { case PCI_PRODUCT_DEC_21030: case PCI_PRODUCT_DEC_PBXGB: return 10; default: return 0; } return (0); } void tga_getdevconfig(memt, pc, tag, dc) bus_space_tag_t memt; pci_chipset_tag_t pc; pcitag_t tag; struct tga_devconfig *dc; { const struct tga_conf *tgac; struct rasops_info *rip; int cookie; bus_size_t pcisize; int i, cacheable; dc->dc_memt = memt; dc->dc_pcitag = tag; DPRINTF("tga_getdevconfig: Getting map info\n"); /* XXX magic number */ if (pci_mapreg_info(pc, tag, 0x10, PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, &dc->dc_pcipaddr, &pcisize, &cacheable)) return; if (!cacheable) panic("tga memory not cacheable"); DPRINTF("tga_getdevconfig: preparing to map\n"); #ifdef __OpenBSD__ if (bus_space_map(memt, dc->dc_pcipaddr, pcisize, 1, &dc->dc_memh)) return; dc->dc_vaddr = dc->dc_memh; #else if (bus_space_map(memt, dc->dc_pcipaddr, pcisize, BUS_SPACE_MAP_PREFETCHABLE | BUS_SPACE_MAP_LINEAR, &dc->dc_memh)) return; dc->dc_vaddr = (vaddr_t) bus_space_vaddr(memt, dc->dc_memh); #endif DPRINTF("tga_getdevconfig: mapped\n"); #ifdef __alpha__ dc->dc_paddr = ALPHA_K0SEG_TO_PHYS(dc->dc_vaddr); /* XXX */ #endif #ifdef arc bus_space_paddr(memt, dc->dc_memh, &dc->dc_paddr); #endif DPRINTF("tga_getdevconfig: allocating subregion\n"); bus_space_subregion(dc->dc_memt, dc->dc_memh, TGA_MEM_CREGS, TGA_CREGS_SIZE, &dc->dc_regs); DPRINTF("tga_getdevconfig: going to identify\n"); dc->dc_tga_type = tga_identify(dc); DPRINTF("tga_getdevconfig: preparing to get config\n"); tgac = dc->dc_tgaconf = tga_getconf(dc->dc_tga_type); if (tgac == NULL) return; #if 0 /* XXX on the Alpha, pcisize = 4 * cspace_size. */ if (tgac->tgac_cspace_size != pcisize) /* sanity */ panic("tga_getdevconfig: memory size mismatch?"); #endif DPRINTF("tga_getdevconfig: get revno\n"); switch (TGARREG(dc, TGA_REG_GREV) & 0xff) { case 0x01: case 0x02: case 0x03: case 0x04: dc->dc_tga2 = 0; break; case 0x20: case 0x21: case 0x22: dc->dc_tga2 = 1; break; default: panic("tga_getdevconfig: TGA Revision not recognized"); } if (dc->dc_tga2) { int monitor; monitor = (~TGARREG(dc, TGA_REG_GREV) >> 16) & 0x0f; DPRINTF("tga_getdevconfig: tga2_init\n"); tga2_init(dc, monitor); } i = TGARREG(dc, TGA_REG_VHCR) & 0x1ff; DPRINTF("tga_getdevconfig: TGA_REG_VHCR & 0x1ff = %d\n", i); switch (i) { /* XXX */ case 0: dc->dc_wid = 8192; break; case 1: dc->dc_wid = 8196; break; default: dc->dc_wid = (TGARREG(dc, TGA_REG_VHCR) & 0x1ff) * 4; /* XXX */ break; } DPRINTF("tga_getdevconfig: dc->dc_wid = %d\n", dc->dc_wid); /* * XXX XXX Turning off "odd" shouldn't be necessary, * XXX XXX but I can't make X work with the weird size. */ DPRINTF("tga_getdevconfig: beginning magic incantation\n"); if ((TGARREG(dc, TGA_REG_VHCR) & 0x00000001) != 0 && /* XXX */ (TGARREG(dc, TGA_REG_VHCR) & 0x80000000) != 0) { /* XXX */ TGAWREG(dc, TGA_REG_VHCR, (TGARREG(dc, TGA_REG_VHCR) & ~0x80000001)); dc->dc_wid -= 4; } dc->dc_rowbytes = dc->dc_wid * (dc->dc_tgaconf->tgac_phys_depth / 8); dc->dc_ht = (TGARREG(dc, TGA_REG_VVCR) & 0x7ff); /* XXX */ DPRINTF("tga_getdevconfig: rowbytes = %d, tgac_phys_depth = %d\n" " dc_wid = %d, dc_ht = %d\n", dc->dc_rowbytes, dc->dc_tgaconf->tgac_phys_depth, dc->dc_wid, dc->dc_ht); /* XXX this seems to be what DEC does */ DPRINTF("tga_getdevconfig: more magic\n"); TGAWREG(dc, TGA_REG_CCBR, 0); TGAWREG(dc, TGA_REG_VVBR, 1); dc->dc_videobase = dc->dc_vaddr + tgac->tgac_dbuf[0] + 1 * tgac->tgac_vvbr_units; dc->dc_blanked = 1; tga_unblank(dc); DPRINTF("tga_getdevconfig: dc_videobase = 0x%016llx\n" " dc_vaddr = 0x%016llx\n" " tgac_dbuf[0] = %d\n" " tgac_vvbr_units = %d\n", dc->dc_videobase, dc->dc_vaddr, tgac->tgac_dbuf[0], tgac->tgac_vvbr_units); /* * Set all bits in the pixel mask, to enable writes to all pixels. * It seems that the console firmware clears some of them * under some circumstances, which causes cute vertical stripes. */ DPRINTF("tga_getdevconfig: set pixel mask\n"); TGAWREG(dc, TGA_REG_GPXR_P, 0xffffffff); /* clear the screen */ DPRINTF("tga_getdevconfig: clear screen\n"); for (i = 0; i < dc->dc_ht * dc->dc_rowbytes; i += sizeof(u_int32_t)) *(u_int32_t *)(dc->dc_videobase + i) = 0; DPRINTF("tga_getdevconfig: raster ops\n"); /* Initialize rasops descriptor */ rip = &dc->dc_rinfo; rip->ri_flg = RI_CENTER; rip->ri_depth = tgac->tgac_phys_depth; rip->ri_bits = (void *)dc->dc_videobase; rip->ri_width = dc->dc_wid; rip->ri_height = dc->dc_ht; rip->ri_stride = dc->dc_rowbytes; rip->ri_hw = dc; if (tgac->tgac_phys_depth == 32) { rip->ri_rnum = 8; rip->ri_gnum = 8; rip->ri_bnum = 8; rip->ri_rpos = 16; rip->ri_gpos = 8; rip->ri_bpos = 0; } DPRINTF("tga_getdevconfig: wsfont_init\n"); wsfont_init(); /* prefer 8 pixel wide font */ if ((cookie = wsfont_find(NULL, 8, 0, 0)) <= 0) cookie = wsfont_find(NULL, 0, 0, 0); if (cookie <= 0) { printf("tga: no appropriate fonts.\n"); return; } /* the accelerated tga_putchar() needs LSbit left */ if (wsfont_lock(cookie, &dc->dc_rinfo.ri_font, WSDISPLAY_FONTORDER_R2L, WSDISPLAY_FONTORDER_L2R) <= 0) { printf("tga: couldn't lock font\n"); return; } dc->dc_rinfo.ri_wsfcookie = cookie; rasops_init(rip, 34, 80); /* add our accelerated functions */ /* XXX shouldn't have to do this; rasops should leave non-NULL * XXX entries alone. */ dc->dc_rinfo.ri_ops.copyrows = tga_copyrows; dc->dc_rinfo.ri_ops.eraserows = tga_eraserows; dc->dc_rinfo.ri_ops.erasecols = tga_erasecols; dc->dc_rinfo.ri_ops.copycols = tga_copycols; dc->dc_rinfo.ri_ops.putchar = tga_putchar; tga_stdscreen.nrows = dc->dc_rinfo.ri_rows; tga_stdscreen.ncols = dc->dc_rinfo.ri_cols; tga_stdscreen.textops = &dc->dc_rinfo.ri_ops; tga_stdscreen.capabilities = dc->dc_rinfo.ri_caps; dc->dc_intrenabled = 0; } void tgaattach(parent, self, aux) struct device *parent, *self; void *aux; { struct pci_attach_args *pa = aux; struct tga_softc *sc = (struct tga_softc *)self; struct wsemuldisplaydev_attach_args aa; pci_intr_handle_t intrh; const char *intrstr; u_int8_t rev; int console; #if defined(__alpha__) || defined(arc) console = (pa->pa_tag == tga_console_dc.dc_pcitag); #else console = 0; #endif if (console) { sc->sc_dc = &tga_console_dc; sc->nscreens = 1; } else { sc->sc_dc = (struct tga_devconfig *) malloc(sizeof(struct tga_devconfig), M_DEVBUF, M_NOWAIT); if (sc->sc_dc == NULL) return; bzero(sc->sc_dc, sizeof(struct tga_devconfig)); tga_getdevconfig(pa->pa_memt, pa->pa_pc, pa->pa_tag, sc->sc_dc); } if (sc->sc_dc->dc_vaddr == NULL) { printf(": couldn't map memory space; punt!\n"); return; } /* XXX say what's going on. */ intrstr = NULL; if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, pa->pa_intrline, &intrh)) { printf(": couldn't map interrupt"); return; } intrstr = pci_intr_string(pa->pa_pc, intrh); sc->sc_intr = pci_intr_establish(pa->pa_pc, intrh, IPL_TTY, tga_intr, sc->sc_dc, sc->sc_dev.dv_xname); if (sc->sc_intr == NULL) { printf(": couldn't establish interrupt"); if (intrstr != NULL) printf("at %s", intrstr); printf("\n"); return; } rev = PCI_REVISION(pa->pa_class); switch (rev) { case 0x1: case 0x2: case 0x3: printf(": DC21030 step %c", 'A' + rev - 1); break; case 0x20: printf(": TGA2 abstract software model"); break; case 0x21: case 0x22: printf(": TGA2 pass %d", rev - 0x20); break; default: printf("unknown stepping (0x%x)", rev); break; } printf(", "); /* * Get RAMDAC function vectors and call the RAMDAC functions * to allocate its private storage and pass that back to us. */ DPRINTF("tgaattach: Get RAMDAC functions\n"); sc->sc_dc->dc_ramdac_funcs = sc->sc_dc->dc_tgaconf->ramdac_funcs(); if (!sc->sc_dc->dc_tga2) { DPRINTF("tgaattach: !sc->sc_dc->dc_tga2\n"); DPRINTF("tgaattach: sc->sc_dc->dc_tgaconf->ramdac_funcs %s " "bt485_funcs\n", (sc->sc_dc->dc_tgaconf->ramdac_funcs == bt485_funcs) ? "==" : "!="); if (sc->sc_dc->dc_tgaconf->ramdac_funcs == bt485_funcs) sc->sc_dc->dc_ramdac_cookie = sc->sc_dc->dc_ramdac_funcs->ramdac_register(sc->sc_dc, tga_sched_update, tga_ramdac_wr, tga_ramdac_rd); else sc->sc_dc->dc_ramdac_cookie = sc->sc_dc->dc_ramdac_funcs->ramdac_register(sc->sc_dc, tga_sched_update, tga_bt463_wr, tga_bt463_rd); } else { DPRINTF("tgaattach: sc->sc_dc->dc_tga2\n"); sc->sc_dc->dc_ramdac_cookie = sc->sc_dc->dc_ramdac_funcs->ramdac_register(sc->sc_dc, tga_sched_update, tga2_ramdac_wr, tga2_ramdac_rd); } DPRINTF("tgaattach: sc->sc_dc->dc_ramdac_cookie = 0x%016llx\n", sc->sc_dc->dc_ramdac_cookie); /* * Initialize the RAMDAC. Initialization includes disabling * cursor, setting a sane colormap, etc. */ DPRINTF("tgaattach: Initializing RAMDAC.\n"); (*sc->sc_dc->dc_ramdac_funcs->ramdac_init)(sc->sc_dc->dc_ramdac_cookie); TGAWREG(sc->sc_dc, TGA_REG_SISR, 0x00000001); /* XXX */ if (sc->sc_dc->dc_tgaconf == NULL) { printf("unknown board configuration\n"); return; } printf("board type %s\n", sc->sc_dc->dc_tgaconf->tgac_name); printf("%s: %d x %d, %dbpp, %s RAMDAC\n", sc->sc_dev.dv_xname, sc->sc_dc->dc_wid, sc->sc_dc->dc_ht, sc->sc_dc->dc_tgaconf->tgac_phys_depth, sc->sc_dc->dc_ramdac_funcs->ramdac_name); if (intrstr != NULL) printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); aa.console = console; aa.scrdata = &tga_screenlist; aa.accessops = &tga_accessops; aa.accesscookie = sc; config_found(self, &aa, wsemuldisplaydevprint); #ifdef __NetBSD__ config_interrupts(self, tga_config_interrupts); #endif } void tga_config_interrupts (d) struct device *d; { struct tga_softc *sc = (struct tga_softc *)d; sc->sc_dc->dc_intrenabled = 1; } int tga_ioctl(v, cmd, data, flag, p) void *v; u_long cmd; caddr_t data; int flag; struct proc *p; { struct tga_softc *sc = v; struct tga_devconfig *dc = sc->sc_dc; struct ramdac_funcs *dcrf = dc->dc_ramdac_funcs; struct ramdac_cookie *dcrc = dc->dc_ramdac_cookie; switch (cmd) { case WSDISPLAYIO_GTYPE: *(u_int *)data = WSDISPLAY_TYPE_TGA; return (0); case WSDISPLAYIO_GINFO: #define wsd_fbip ((struct wsdisplay_fbinfo *)data) wsd_fbip->height = sc->sc_dc->dc_ht; wsd_fbip->width = sc->sc_dc->dc_wid; wsd_fbip->depth = sc->sc_dc->dc_tgaconf->tgac_phys_depth; wsd_fbip->cmsize = 256; /* XXX ??? */ #undef wsd_fbip return (0); case WSDISPLAYIO_GETCMAP: return (*dcrf->ramdac_get_cmap)(dcrc, (struct wsdisplay_cmap *)data); case WSDISPLAYIO_PUTCMAP: return (*dcrf->ramdac_set_cmap)(dcrc, (struct wsdisplay_cmap *)data); case WSDISPLAYIO_SVIDEO: if (*(u_int *)data == WSDISPLAYIO_VIDEO_OFF) tga_blank(sc->sc_dc); else tga_unblank(sc->sc_dc); return (0); case WSDISPLAYIO_GVIDEO: *(u_int *)data = dc->dc_blanked ? WSDISPLAYIO_VIDEO_OFF : WSDISPLAYIO_VIDEO_ON; return (0); case WSDISPLAYIO_GCURPOS: return (*dcrf->ramdac_get_curpos)(dcrc, (struct wsdisplay_curpos *)data); case WSDISPLAYIO_SCURPOS: return (*dcrf->ramdac_set_curpos)(dcrc, (struct wsdisplay_curpos *)data); case WSDISPLAYIO_GCURMAX: return (*dcrf->ramdac_get_curmax)(dcrc, (struct wsdisplay_curpos *)data); case WSDISPLAYIO_GCURSOR: return (*dcrf->ramdac_get_cursor)(dcrc, (struct wsdisplay_cursor *)data); case WSDISPLAYIO_SCURSOR: return (*dcrf->ramdac_set_cursor)(dcrc, (struct wsdisplay_cursor *)data); } return (-1); } int tga_sched_update(v, f) void *v; void (*f) __P((void *)); { struct tga_devconfig *dc = v; if (dc->dc_intrenabled) { /* Arrange for f to be called at the next end-of-frame interrupt */ dc->dc_ramdac_intr = f; TGAWREG(dc, TGA_REG_SISR, 0x00010000); } else { /* Spin until the end-of-frame, then call f */ TGAWREG(dc, TGA_REG_SISR, 0x00010001); TGAREGWB(dc, TGA_REG_SISR, 1); while ((TGARREG(dc, TGA_REG_SISR) & 0x00000001) == 0) ; f(dc->dc_ramdac_cookie); TGAWREG(dc, TGA_REG_SISR, 0x00000001); TGAREGWB(dc, TGA_REG_SISR, 1); } return 0; } int tga_intr(v) void *v; { struct tga_devconfig *dc = v; struct ramdac_cookie *dcrc= dc->dc_ramdac_cookie; u_int32_t reg; reg = TGARREG(dc, TGA_REG_SISR); if (( reg & 0x00010001) != 0x00010001) { /* Odd. We never set any of the other interrupt enables. */ if ((reg & 0x1f) != 0) { /* Clear the mysterious pending interrupts. */ TGAWREG(dc, TGA_REG_SISR, (reg & 0x1f)); TGAREGWB(dc, TGA_REG_SISR, 1); /* This was our interrupt, even if we're puzzled as to why * we got it. Don't make the interrupt handler think it * was a stray. */ return -1; } else { return 0; } } dc->dc_ramdac_intr(dcrc); dc->dc_ramdac_intr = NULL; TGAWREG(dc, TGA_REG_SISR, 0x00000001); TGAREGWB(dc, TGA_REG_SISR, 1); return (1); } paddr_t tga_mmap(v, offset, prot) void *v; off_t offset; int prot; { /* XXX NEW MAPPING CODE... */ #if defined(__alpha__) struct tga_softc *sc = v; if (offset >= sc->sc_dc->dc_tgaconf->tgac_cspace_size || offset < 0) return -1; return alpha_btop(sc->sc_dc->dc_paddr + offset); #elif defined(__mips__) struct tga_softc *sc = v; if (offset >= sc->sc_dc->dc_tgaconf->tgac_cspace_size || offset < 0) return -1; return mips_btop(sc->sc_dc->dc_paddr + offset); #else return (-1); #endif } int tga_alloc_screen(v, type, cookiep, curxp, curyp, attrp) void *v; const struct wsscreen_descr *type; void **cookiep; int *curxp, *curyp; long *attrp; { struct tga_softc *sc = v; long defattr; if (sc->nscreens > 0) return (ENOMEM); *cookiep = &sc->sc_dc->dc_rinfo; /* one and only for now */ *curxp = 0; *curyp = 0; sc->sc_dc->dc_rinfo.ri_ops.alloc_attr(&sc->sc_dc->dc_rinfo, 0, 0, 0, &defattr); *attrp = defattr; sc->nscreens++; return (0); } void tga_free_screen(v, cookie) void *v; void *cookie; { struct tga_softc *sc = v; if (sc->sc_dc == &tga_console_dc) panic("tga_free_screen: console"); sc->nscreens--; } int tga_show_screen(v, cookie, waitok, cb, cbarg) void *v; void *cookie; int waitok; void (*cb) __P((void *, int, int)); void *cbarg; { return (0); } int tga_cnattach(iot, memt, pc, bus, device, function) bus_space_tag_t iot, memt; pci_chipset_tag_t pc; int bus, device, function; { struct tga_devconfig *dcp = &tga_console_dc; long defattr; tga_getdevconfig(memt, pc, pci_make_tag(pc, bus, device, function), dcp); /* sanity checks */ if (dcp->dc_vaddr == NULL) panic("tga_console(%d, %d): couldn't map memory space", device, function); if (dcp->dc_tgaconf == NULL) panic("tga_console(%d, %d): unknown board configuration", device, function); /* * Initialize the RAMDAC but DO NOT allocate any private storage. * Initialization includes disabling cursor, setting a sane * colormap, etc. It will be reinitialized in tgaattach(). */ if (dcp->dc_tga2) bt485_cninit(dcp, tga_sched_update, tga2_ramdac_wr, tga2_ramdac_rd); else { if (dcp->dc_tgaconf->ramdac_funcs == bt485_funcs) bt485_cninit(dcp, tga_sched_update, tga_ramdac_wr, tga_ramdac_rd); else { bt463_cninit(dcp, tga_sched_update, tga_bt463_wr, tga_bt463_rd); } } dcp->dc_rinfo.ri_ops.alloc_attr(&dcp->dc_rinfo, 0, 0, 0, &defattr); wsdisplay_cnattach(&tga_stdscreen, &dcp->dc_rinfo, 0, 0, defattr); return(0); } /* * Functions to blank and unblank the display. */ void tga_blank(dc) struct tga_devconfig *dc; { if (!dc->dc_blanked) { dc->dc_blanked = 1; /* XXX */ TGAWREG(dc, TGA_REG_VVVR, TGARREG(dc, TGA_REG_VVVR) | VVR_BLANK); } } void tga_unblank(dc) struct tga_devconfig *dc; { if (dc->dc_blanked) { dc->dc_blanked = 0; /* XXX */ TGAWREG(dc, TGA_REG_VVVR, TGARREG(dc, TGA_REG_VVVR) & ~VVR_BLANK); } } /* * Functions to manipulate the built-in cursor handing hardware. */ int tga_builtin_set_cursor(dc, cursorp) struct tga_devconfig *dc; struct wsdisplay_cursor *cursorp; { struct ramdac_funcs *dcrf = dc->dc_ramdac_funcs; struct ramdac_cookie *dcrc = dc->dc_ramdac_cookie; int count, error, v; v = cursorp->which; if (v & WSDISPLAY_CURSOR_DOCMAP) { error = dcrf->ramdac_check_curcmap(dcrc, cursorp); if (error) return (error); } if (v & WSDISPLAY_CURSOR_DOSHAPE) { if ((u_int)cursorp->size.x != 64 || (u_int)cursorp->size.y > 64) return (EINVAL); /* The cursor is 2 bits deep, and there is no mask */ count = (cursorp->size.y * 64 * 2) / NBBY; if (!uvm_useracc(cursorp->image, count, B_READ)) return (EFAULT); } if (v & WSDISPLAY_CURSOR_DOHOT) /* not supported */ return EINVAL; /* parameters are OK; do it */ if (v & WSDISPLAY_CURSOR_DOCUR) { if (cursorp->enable) /* XXX */ TGAWREG(dc, TGA_REG_VVVR, TGARREG(dc, TGA_REG_VVVR) | 0x04); else /* XXX */ TGAWREG(dc, TGA_REG_VVVR, TGARREG(dc, TGA_REG_VVVR) & ~0x04); } if (v & WSDISPLAY_CURSOR_DOPOS) { TGAWREG(dc, TGA_REG_CXYR, ((cursorp->pos.y & 0xfff) << 12) | (cursorp->pos.x & 0xfff)); } if (v & WSDISPLAY_CURSOR_DOCMAP) { /* can't fail. */ dcrf->ramdac_set_curcmap(dcrc, cursorp); } if (v & WSDISPLAY_CURSOR_DOSHAPE) { count = ((64 * 2) / NBBY) * cursorp->size.y; TGAWREG(dc, TGA_REG_CCBR, (TGARREG(dc, TGA_REG_CCBR) & ~0xfc00) | (cursorp->size.y << 10)); copyin(cursorp->image, (char *)(dc->dc_vaddr + (TGARREG(dc, TGA_REG_CCBR) & 0x3ff)), count); /* can't fail. */ } return (0); } int tga_builtin_get_cursor(dc, cursorp) struct tga_devconfig *dc; struct wsdisplay_cursor *cursorp; { struct ramdac_funcs *dcrf = dc->dc_ramdac_funcs; struct ramdac_cookie *dcrc = dc->dc_ramdac_cookie; int count, error; cursorp->which = WSDISPLAY_CURSOR_DOALL & ~(WSDISPLAY_CURSOR_DOHOT | WSDISPLAY_CURSOR_DOCMAP); cursorp->enable = (TGARREG(dc, TGA_REG_VVVR) & 0x04) != 0; cursorp->pos.x = TGARREG(dc, TGA_REG_CXYR) & 0xfff; cursorp->pos.y = (TGARREG(dc, TGA_REG_CXYR) >> 12) & 0xfff; cursorp->size.x = 64; cursorp->size.y = (TGARREG(dc, TGA_REG_CCBR) >> 10) & 0x3f; if (cursorp->image != NULL) { count = (cursorp->size.y * 64 * 2) / NBBY; error = copyout((char *)(dc->dc_vaddr + (TGARREG(dc, TGA_REG_CCBR) & 0x3ff)), cursorp->image, count); if (error) return (error); /* No mask */ } error = dcrf->ramdac_get_curcmap(dcrc, cursorp); return (error); } int tga_builtin_set_curpos(dc, curposp) struct tga_devconfig *dc; struct wsdisplay_curpos *curposp; { TGAWREG(dc, TGA_REG_CXYR, ((curposp->y & 0xfff) << 12) | (curposp->x & 0xfff)); return (0); } int tga_builtin_get_curpos(dc, curposp) struct tga_devconfig *dc; struct wsdisplay_curpos *curposp; { curposp->x = TGARREG(dc, TGA_REG_CXYR) & 0xfff; curposp->y = (TGARREG(dc, TGA_REG_CXYR) >> 12) & 0xfff; return (0); } int tga_builtin_get_curmax(dc, curposp) struct tga_devconfig *dc; struct wsdisplay_curpos *curposp; { curposp->x = curposp->y = 64; return (0); } /* * Copy columns (characters) in a row (line). */ void tga_copycols(id, row, srccol, dstcol, ncols) void *id; int row, srccol, dstcol, ncols; { struct rasops_info *ri = id; int y, srcx, dstx, nx; y = ri->ri_font->fontheight * row; srcx = ri->ri_font->fontwidth * srccol; dstx = ri->ri_font->fontwidth * dstcol; nx = ri->ri_font->fontwidth * ncols; tga_rop(ri, dstx, y, nx, ri->ri_font->fontheight, RAS_SRC, ri, srcx, y); } /* * Copy rows (lines). */ void tga_copyrows(id, srcrow, dstrow, nrows) void *id; int srcrow, dstrow, nrows; { struct rasops_info *ri = id; int srcy, dsty, ny; srcy = ri->ri_font->fontheight * srcrow; dsty = ri->ri_font->fontheight * dstrow; ny = ri->ri_font->fontheight * nrows; tga_rop(ri, 0, dsty, ri->ri_emuwidth, ny, RAS_SRC, ri, 0, srcy); } /* Do we need the src? */ int needsrc[16] = { 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0 }; /* A mapping between our API and the TGA card */ int map_rop[16] = { 0x0, 0x8, 0x4, 0xc, 0x2, 0xa, 0x6, 0xe, 0x1, 0x9, 0x5, 0xd, 0x3, 0xb, 0x7, 0xf }; /* * Generic TGA raster op. * This covers all possible raster ops, and * clips the sizes and all of that. */ int tga_rop(dst, dx, dy, w, h, rop, src, sx, sy) struct rasops_info *dst; int dx, dy, w, h, rop; struct rasops_info *src; int sx, sy; { if (!dst) return -1; if (needsrc[RAS_GETOP(rop)]) { if (src == NULL) return -1; /* We want a src */ /* Clip against src */ if (sx < 0) { w += sx; sx = 0; } if (sy < 0) { h += sy; sy = 0; } if (sx + w > src->ri_emuwidth) w = src->ri_emuwidth - sx; if (sy + h > src->ri_emuheight) h = src->ri_emuheight - sy; } else { if (src != NULL) return -1; /* We need no src */ } /* Clip against dst. We modify src regardless of using it, * since it really doesn't matter. */ if (dx < 0) { w += dx; sx -= dx; dx = 0; } if (dy < 0) { h += dy; sy -= dy; dy = 0; } if (dx + w > dst->ri_emuwidth) w = dst->ri_emuwidth - dx; if (dy + h > dst->ri_emuheight) h = dst->ri_emuheight - dy; if (w <= 0 || h <= 0) return 0; /* Vacuously true; */ if (!src) { /* XXX Punt! */ return -1; } return tga_rop_vtov(dst, dx, dy, w, h, rop, src, sx, sy); } /* * Video to Video raster ops. * This function deals with all raster ops that have a src and dst * that are on the card. */ int tga_rop_vtov(dst, dx, dy, w, h, rop, src, sx, sy) struct rasops_info *dst; int dx, dy, w, h, rop; struct rasops_info *src; int sx, sy; { struct tga_devconfig *dc = (struct tga_devconfig *)dst->ri_hw; int srcb, dstb, tga_srcb, tga_dstb; int x, y, wb; int xstart, xend, xdir; int ystart, yend, ydir, yinc; int xleft, lastx, lastleft; int offset = 1 * dc->dc_tgaconf->tgac_vvbr_units; /* * I don't yet want to deal with unaligned guys, really. And we don't * deal with copies from one card to another. */ if (dx % 8 != 0 || sx % 8 != 0 || src != dst) { /* XXX Punt! */ /* XXX should never happen, since it's only being used to * XXX copy 8-pixel-wide characters. */ return -1; } wb = w * (dst->ri_depth / 8); if (sy >= dy) { ystart = 0; yend = h; ydir = 1; } else { ystart = h; yend = 0; ydir = -1; } if (sx >= dx) { /* moving to the left */ xstart = 0; xend = w * (dst->ri_depth / 8) - 4; xdir = 1; } else { /* moving to the right */ xstart = wb - ( wb >= 4*64 ? 4*64 : wb >= 64 ? 64 : 4 ); xend = 0; xdir = -1; } #define XINC4 4 #define XINC64 64 #define XINC256 (64*4) yinc = ydir * dst->ri_stride; ystart *= dst->ri_stride; yend *= dst->ri_stride; srcb = sy * src->ri_stride + sx * (src->ri_depth/8); dstb = dy * dst->ri_stride + dx * (dst->ri_depth/8); tga_srcb = offset + (sy + src->ri_yorigin) * src->ri_stride + (sx + src->ri_xorigin) * (src->ri_depth/8); tga_dstb = offset + (dy + dst->ri_yorigin) * dst->ri_stride + (dx + dst->ri_xorigin) * (dst->ri_depth/8); TGAWALREG(dc, TGA_REG_GMOR, 3, 0x0007); /* Copy mode */ TGAWALREG(dc, TGA_REG_GOPR, 3, map_rop[rop]); /* Set up the op */ /* * we have 3 sizes of pixels to move in X direction: * 4 * 64 (unrolled TGA ops) * 64 (single TGA op) * 4 (CPU, using long word) */ if (xdir == 1) { /* move to the left */ for (y = ystart; (ydir * y) <= (ydir * yend); y += yinc) { /* 4*64 byte chunks */ for (xleft = wb, x = xstart; x <= xend && xleft >= 4*64; x += XINC256, xleft -= XINC256) { /* XXX XXX Eight writes to different addresses should fill * XXX XXX up the write buffers on 21064 and 21164 chips, * XXX XXX but later CPUs might have larger write buffers which * XXX XXX require further unrolling of this loop, or the * XXX XXX insertion of memory barriers. */ TGAWALREG(dc, TGA_REG_GCSR, 0, tga_srcb + y + x + 0 * 64); TGAWALREG(dc, TGA_REG_GCDR, 0, tga_dstb + y + x + 0 * 64); TGAWALREG(dc, TGA_REG_GCSR, 1, tga_srcb + y + x + 1 * 64); TGAWALREG(dc, TGA_REG_GCDR, 1, tga_dstb + y + x + 1 * 64); TGAWALREG(dc, TGA_REG_GCSR, 2, tga_srcb + y + x + 2 * 64); TGAWALREG(dc, TGA_REG_GCDR, 2, tga_dstb + y + x + 2 * 64); TGAWALREG(dc, TGA_REG_GCSR, 3, tga_srcb + y + x + 3 * 64); TGAWALREG(dc, TGA_REG_GCDR, 3, tga_dstb + y + x + 3 * 64); } /* 64 byte chunks */ for ( ; x <= xend && xleft >= 64; x += XINC64, xleft -= XINC64) { TGAWALREG(dc, TGA_REG_GCSR, 0, tga_srcb + y + x + 0 * 64); TGAWALREG(dc, TGA_REG_GCDR, 0, tga_dstb + y + x + 0 * 64); } lastx = x; lastleft = xleft; /* remember for CPU loop */ } TGAWALREG(dc, TGA_REG_GOPR, 0, 0x0003); /* op -> dst = src */ TGAWALREG(dc, TGA_REG_GMOR, 0, 0x0000); /* Simple mode */ for (y = ystart; (ydir * y) <= (ydir * yend); y += yinc) { /* 4 byte granularity */ for (x = lastx, xleft = lastleft; x <= xend && xleft >= 4; x += XINC4, xleft -= XINC4) { *(uint32_t *)(dst->ri_bits + dstb + y + x) = *(uint32_t *)(dst->ri_bits + srcb + y + x); } } } else { /* above move to the left, below move to the right */ for (y = ystart; (ydir * y) <= (ydir * yend); y += yinc) { /* 4*64 byte chunks */ for (xleft = wb, x = xstart; x >= xend && xleft >= 4*64; x -= XINC256, xleft -= XINC256) { /* XXX XXX Eight writes to different addresses should fill * XXX XXX up the write buffers on 21064 and 21164 chips, * XXX XXX but later CPUs might have larger write buffers which * XXX XXX require further unrolling of this loop, or the * XXX XXX insertion of memory barriers. */ TGAWALREG(dc, TGA_REG_GCSR, 0, tga_srcb + y + x + 3 * 64); TGAWALREG(dc, TGA_REG_GCDR, 0, tga_dstb + y + x + 3 * 64); TGAWALREG(dc, TGA_REG_GCSR, 1, tga_srcb + y + x + 2 * 64); TGAWALREG(dc, TGA_REG_GCDR, 1, tga_dstb + y + x + 2 * 64); TGAWALREG(dc, TGA_REG_GCSR, 2, tga_srcb + y + x + 1 * 64); TGAWALREG(dc, TGA_REG_GCDR, 2, tga_dstb + y + x + 1 * 64); TGAWALREG(dc, TGA_REG_GCSR, 3, tga_srcb + y + x + 0 * 64); TGAWALREG(dc, TGA_REG_GCDR, 3, tga_dstb + y + x + 0 * 64); } if (xleft) x += XINC256 - XINC64; /* 64 byte chunks */ for ( ; x >= xend && xleft >= 64; x -= XINC64, xleft -= XINC64) { TGAWALREG(dc, TGA_REG_GCSR, 0, tga_srcb + y + x + 0 * 64); TGAWALREG(dc, TGA_REG_GCDR, 0, tga_dstb + y + x + 0 * 64); } if (xleft) x += XINC64 - XINC4; lastx = x; lastleft = xleft; /* remember for CPU loop */ } TGAWALREG(dc, TGA_REG_GOPR, 0, 0x0003); /* op -> dst = src */ TGAWALREG(dc, TGA_REG_GMOR, 0, 0x0000); /* Simple mode */ for (y = ystart; (ydir * y) <= (ydir * yend); y += yinc) { /* 4 byte granularity */ for (x = lastx, xleft = lastleft; x >= xend && xleft >= 4; x -= XINC4, xleft -= XINC4) { *(uint32_t *)(dst->ri_bits + dstb + y + x) = *(uint32_t *)(dst->ri_bits + srcb + y + x); } } } return 0; } void tga_putchar (c, row, col, uc, attr) void *c; int row, col; u_int uc; long attr; { struct rasops_info *ri = c; struct tga_devconfig *dc = ri->ri_hw; int fs, height, width; u_char *fr; int32_t *rp; rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale); height = ri->ri_font->fontheight; width = ri->ri_font->fontwidth; uc -= ri->ri_font->firstchar; fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; fs = ri->ri_font->stride; /* Set foreground and background color. XXX memoize this somehow? * The rasops code has already expanded the color entry to 32 bits * for us, even for 8-bit displays, so we don't have to do anything. */ TGAWREG(dc, TGA_REG_GFGR, ri->ri_devcmap[(attr >> 24) & 15]); TGAWREG(dc, TGA_REG_GBGR, ri->ri_devcmap[(attr >> 16) & 15]); /* Set raster operation to "copy"... */ if (ri->ri_depth == 8) TGAWREG(dc, TGA_REG_GOPR, 0x3); else /* ... and in 24-bit mode, set the destination bitmap to 24-bit. */ TGAWREG(dc, TGA_REG_GOPR, 0x3 | (0x3 << 8)); /* Set which pixels we're drawing (of a possible 32). */ TGAWREG(dc, TGA_REG_GPXR_P, (1 << width) - 1); /* Set drawing mode to opaque stipple. */ TGAWREG(dc, TGA_REG_GMOR, 0x1); /* Insert write barrier before actually sending data */ /* XXX Abuses the fact that there is only one write barrier on Alphas */ TGAREGWB(dc, TGA_REG_GMOR, 1); while(height--) { /* The actual stipple write */ *rp = fr[0] | (fr[1] << 8) | (fr[2] << 16) | (fr[3] << 24); fr += fs; rp = (int32_t *)((caddr_t)rp + ri->ri_stride); } /* Do underline */ if ((attr & 1) != 0) { rp = (int32_t *)((caddr_t)rp - (ri->ri_stride << 1)); *rp = 0xffffffff; } /* Set grapics mode back to normal. */ TGAWREG(dc, TGA_REG_GMOR, 0); TGAWREG(dc, TGA_REG_GPXR_P, 0xffffffff); } void tga_eraserows(c, row, num, attr) void *c; int row, num; long attr; { struct rasops_info *ri = c; struct tga_devconfig *dc = ri->ri_hw; int32_t color, lines, pixels; int32_t *rp; color = ri->ri_devcmap[(attr >> 16) & 15]; rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale); lines = num * ri->ri_font->fontheight; pixels = ri->ri_emuwidth - 1; /* Set fill color in block-color registers */ TGAWREG(dc, TGA_REG_GBCR0, color); TGAWREG(dc, TGA_REG_GBCR1, color); if (ri->ri_depth != 8) { TGAWREG(dc, TGA_REG_GBCR2, color); TGAWREG(dc, TGA_REG_GBCR3, color); TGAWREG(dc, TGA_REG_GBCR4, color); TGAWREG(dc, TGA_REG_GBCR5, color); TGAWREG(dc, TGA_REG_GBCR6, color); TGAWREG(dc, TGA_REG_GBCR7, color); } /* Set raster operation to "copy"... */ if (ri->ri_depth == 8) TGAWREG(dc, TGA_REG_GOPR, 0x3); else /* ... and in 24-bit mode, set the destination bitmap to 24-bit. */ TGAWREG(dc, TGA_REG_GOPR, 0x3 | (0x3 << 8)); /* Set which pixels we're drawing (of a possible 32). */ TGAWREG(dc, TGA_REG_GDAR, 0xffffffff); /* Set drawing mode to block fill. */ TGAWREG(dc, TGA_REG_GMOR, 0x2d); /* Insert write barrier before actually sending data */ /* XXX Abuses the fact that there is only one write barrier on Alphas */ TGAREGWB(dc, TGA_REG_GMOR, 1); while (lines--) { *rp = pixels; rp = (int32_t *)((caddr_t)rp + ri->ri_stride); } /* Set grapics mode back to normal. */ TGAWREG(dc, TGA_REG_GMOR, 0); } void tga_erasecols (c, row, col, num, attr) void *c; int row, col, num; long attr; { struct rasops_info *ri = c; struct tga_devconfig *dc = ri->ri_hw; int32_t color, lines, pixels; int32_t *rp; color = ri->ri_devcmap[(attr >> 16) & 15]; rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale); lines = ri->ri_font->fontheight; pixels = (num * ri->ri_font->fontwidth) - 1; /* Set fill color in block-color registers */ TGAWREG(dc, TGA_REG_GBCR0, color); TGAWREG(dc, TGA_REG_GBCR1, color); if (ri->ri_depth != 8) { TGAWREG(dc, TGA_REG_GBCR2, color); TGAWREG(dc, TGA_REG_GBCR3, color); TGAWREG(dc, TGA_REG_GBCR4, color); TGAWREG(dc, TGA_REG_GBCR5, color); TGAWREG(dc, TGA_REG_GBCR6, color); TGAWREG(dc, TGA_REG_GBCR7, color); } /* Set raster operation to "copy"... */ if (ri->ri_depth == 8) TGAWREG(dc, TGA_REG_GOPR, 0x3); else /* ... and in 24-bit mode, set the destination bitmap to 24-bit. */ TGAWREG(dc, TGA_REG_GOPR, 0x3 | (0x3 << 8)); /* Set which pixels we're drawing (of a possible 32). */ TGAWREG(dc, TGA_REG_GDAR, 0xffffffff); /* Set drawing mode to block fill. */ TGAWREG(dc, TGA_REG_GMOR, 0x2d); /* Insert write barrier before actually sending data */ /* XXX Abuses the fact that there is only one write barrier on Alphas */ TGAREGWB(dc, TGA_REG_GMOR, 1); while (lines--) { *rp = pixels; rp = (int32_t *)((caddr_t)rp + ri->ri_stride); } /* Set grapics mode back to normal. */ TGAWREG(dc, TGA_REG_GMOR, 0); } void tga_ramdac_wr(v, btreg, val) void *v; u_int btreg; u_int8_t val; { struct tga_devconfig *dc = v; if (btreg > BT485_REG_MAX) panic("tga_ramdac_wr: reg %d out of range\n", btreg); TGAWREG(dc, TGA_REG_EPDR, (btreg << 9) | (0 << 8 ) | val); /* XXX */ TGAREGWB(dc, TGA_REG_EPDR, 1); } void tga2_ramdac_wr(v, btreg, val) void *v; u_int btreg; u_int8_t val; { struct tga_devconfig *dc = v; bus_space_handle_t ramdac; if (btreg > BT485_REG_MAX) panic("tga_ramdac_wr: reg %d out of range\n", btreg); bus_space_subregion(dc->dc_memt, dc->dc_memh, TGA2_MEM_RAMDAC + (0xe << 12) + (btreg << 8), 4, &ramdac); bus_space_write_4(dc->dc_memt, ramdac, 0, val & 0xff); bus_space_barrier(dc->dc_memt, ramdac, 0, 4, BUS_SPACE_BARRIER_WRITE); } u_int8_t tga_bt463_rd(v, btreg) void *v; u_int btreg; { struct tga_devconfig *dc = v; tga_reg_t rdval; /* * Strobe CE# (high->low->high) since status and data are latched on * the falling and rising edges (repsectively) of this active-low signal. */ TGAREGWB(dc, TGA_REG_EPSR, 1); TGAWREG(dc, TGA_REG_EPSR, (btreg << 2) | 2 | 1); TGAREGWB(dc, TGA_REG_EPSR, 1); TGAWREG(dc, TGA_REG_EPSR, (btreg << 2) | 2 | 0); TGAREGRB(dc, TGA_REG_EPSR, 1); rdval = TGARREG(dc, TGA_REG_EPDR); TGAREGWB(dc, TGA_REG_EPSR, 1); TGAWREG(dc, TGA_REG_EPSR, (btreg << 2) | 2 | 1); return (rdval >> 16) & 0xff; } void tga_bt463_wr(v, btreg, val) void *v; u_int btreg; u_int8_t val; { struct tga_devconfig *dc = v; /* * In spite of the 21030 documentation, to set the MPU bus bits for * a write, you set them in the upper bits of EPDR, not EPSR. */ /* * Strobe CE# (high->low->high) since status and data are latched on * the falling and rising edges of this active-low signal. */ TGAREGWB(dc, TGA_REG_EPDR, 1); TGAWREG(dc, TGA_REG_EPDR, (btreg << 10) | 0x100 | val); TGAREGWB(dc, TGA_REG_EPDR, 1); TGAWREG(dc, TGA_REG_EPDR, (btreg << 10) | 0x000 | val); TGAREGWB(dc, TGA_REG_EPDR, 1); TGAWREG(dc, TGA_REG_EPDR, (btreg << 10) | 0x100 | val); } u_int8_t tga_ramdac_rd(v, btreg) void *v; u_int btreg; { struct tga_devconfig *dc = v; tga_reg_t rdval; if (btreg > BT485_REG_MAX) panic("tga_ramdac_rd: reg %d out of range\n", btreg); TGAWREG(dc, TGA_REG_EPSR, (btreg << 1) | 0x1); /* XXX */ TGAREGWB(dc, TGA_REG_EPSR, 1); rdval = TGARREG(dc, TGA_REG_EPDR); return (rdval >> 16) & 0xff; /* XXX */ } u_int8_t tga2_ramdac_rd(v, btreg) void *v; u_int btreg; { struct tga_devconfig *dc = v; bus_space_handle_t ramdac; u_int8_t retval; if (btreg > BT485_REG_MAX) panic("tga_ramdac_rd: reg %d out of range\n", btreg); bus_space_subregion(dc->dc_memt, dc->dc_memh, TGA2_MEM_RAMDAC + (0xe << 12) + (btreg << 8), 4, &ramdac); retval = bus_space_read_4(dc->dc_memt, ramdac, 0) & 0xff; bus_space_barrier(dc->dc_memt, ramdac, 0, 4, BUS_SPACE_BARRIER_READ); return retval; } #include void tga2_ics9110_wr __P(( struct tga_devconfig *dc, int dotclock )); void tga2_init(dc, m) struct tga_devconfig *dc; int m; { tga2_ics9110_wr(dc, decmonitors[m].dotclock); #if 0 TGAWREG(dc, TGA_REG_VHCR, ((decmonitors[m].hbp / 4) << 21) | ((decmonitors[m].hsync / 4) << 14) | (((decmonitors[m].hfp - 4) / 4) << 9) | ((decmonitors[m].cols + 4) / 4)); #else TGAWREG(dc, TGA_REG_VHCR, ((decmonitors[m].hbp / 4) << 21) | ((decmonitors[m].hsync / 4) << 14) | (((decmonitors[m].hfp) / 4) << 9) | ((decmonitors[m].cols) / 4)); #endif TGAWREG(dc, TGA_REG_VVCR, (decmonitors[m].vbp << 22) | (decmonitors[m].vsync << 16) | (decmonitors[m].vfp << 11) | (decmonitors[m].rows)); TGAWREG(dc, TGA_REG_VVBR, 1); TGAREGRWB(dc, TGA_REG_VHCR, 3); TGAWREG(dc, TGA_REG_VVVR, TGARREG(dc, TGA_REG_VVVR) | 1); TGAREGRWB(dc, TGA_REG_VVVR, 1); TGAWREG(dc, TGA_REG_GPMR, 0xffffffff); TGAREGRWB(dc, TGA_REG_GPMR, 1); } void tga2_ics9110_wr(dc, dotclock) struct tga_devconfig *dc; int dotclock; { bus_space_handle_t clock; u_int32_t valU; int N, M, R, V, X; int i; switch (dotclock) { case 130808000: N = 0x40; M = 0x7; V = 0x0; X = 0x1; R = 0x1; break; case 119840000: N = 0x2d; M = 0x2b; V = 0x1; X = 0x1; R = 0x1; break; case 108180000: N = 0x11; M = 0x9; V = 0x1; X = 0x1; R = 0x2; break; case 103994000: N = 0x6d; M = 0xf; V = 0x0; X = 0x1; R = 0x1; break; case 175000000: N = 0x5F; M = 0x3E; V = 0x1; X = 0x1; R = 0x1; break; case 75000000: N = 0x6e; M = 0x15; V = 0x0; X = 0x1; R = 0x1; break; case 74000000: N = 0x2a; M = 0x41; V = 0x1; X = 0x1; R = 0x1; break; case 69000000: N = 0x35; M = 0xb; V = 0x0; X = 0x1; R = 0x1; break; case 65000000: N = 0x6d; M = 0x0c; V = 0x0; X = 0x1; R = 0x2; break; case 50000000: N = 0x37; M = 0x3f; V = 0x1; X = 0x1; R = 0x2; break; case 40000000: N = 0x5f; M = 0x11; V = 0x0; X = 0x1; R = 0x2; break; case 31500000: N = 0x16; M = 0x05; V = 0x0; X = 0x1; R = 0x2; break; case 25175000: N = 0x66; M = 0x1d; V = 0x0; X = 0x1; R = 0x2; break; case 135000000: N = 0x42; M = 0x07; V = 0x0; X = 0x1; R = 0x1; break; case 110000000: N = 0x60; M = 0x32; V = 0x1; X = 0x1; R = 0x2; break; case 202500000: N = 0x60; M = 0x32; V = 0x1; X = 0x1; R = 0x2; break; default: panic("unrecognized clock rate %d\n", dotclock); } /* XXX -- hard coded, bad */ valU = N | ( M << 7 ) | (V << 14); valU |= (X << 15) | (R << 17); valU |= 0x17 << 19; bus_space_subregion(dc->dc_memt, dc->dc_memh, TGA2_MEM_EXTDEV + TGA2_MEM_CLOCK + (0xe << 12), 4, &clock); /* XXX */ for (i=24; i>0; i--) { u_int32_t writeval; writeval = valU & 0x1; if (i == 1) writeval |= 0x2; valU >>= 1; bus_space_write_4(dc->dc_memt, clock, 0, writeval); bus_space_barrier(dc->dc_memt, clock, 0, 4, BUS_SPACE_BARRIER_WRITE); } bus_space_subregion(dc->dc_memt, dc->dc_memh, TGA2_MEM_EXTDEV + TGA2_MEM_CLOCK + (0xe << 12) + (0x1 << 11) + (0x1 << 11), 4, &clock); /* XXX */ bus_space_write_4(dc->dc_memt, clock, 0, 0x0); bus_space_barrier(dc->dc_memt, clock, 0, 0, BUS_SPACE_BARRIER_WRITE); }