/* $NetBSD: mfb.c,v 1.13 1999/06/23 23:48:28 nisimura Exp $ */ /* * Copyright (c) 1999 Tohru Nishimura. 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 Tohru Nishimura * for the NetBSD Project. * 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 /* RCS ID & Copyright macro defns */ __KERNEL_RCSID(0, "$NetBSD: mfb.c,v 1.13 1999/06/23 23:48:28 nisimura Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define machine_btop(x) mips_btop(x) #define MACHINE_KSEG0_TO_PHYS(x) MIPS_KSEG0_TO_PHYS(x) struct bt455reg { u_int8_t bt_reg; unsigned : 24; u_int8_t bt_cmap; unsigned : 24; u_int8_t bt_clr; unsigned : 24; u_int8_t bt_ovly; }; /* * N.B. a pair of Bt431s are located adjascently. * struct bt431twin { * struct { * u_int8_t u0; for sprite image * u_int8_t u1; for sprite mask * unsigned :16; * } bt_lo; * ... */ struct bt431reg { u_int16_t bt_lo; unsigned : 16; u_int16_t bt_hi; unsigned : 16; u_int16_t bt_ram; unsigned : 16; u_int16_t bt_ctl; }; #define BYTE(base, index) *((u_int8_t *)(base) + ((index)<<2)) #define HALF(base, index) *((u_int16_t *)(base) + ((index)<<1)) #define BT455_SELECT(vdac, regno) do { \ (vdac)->bt_reg = regno; \ (vdac)->bt_clr = 0; \ tc_wmb(); \ } while (0) #define TWIN(x) ((x)|(x) << 8) #define TWIN_LO(x) (twin = (x) & 0x00ff, twin << 8 | twin) #define TWIN_HI(x) (twin = (x) & 0xff00, twin | twin >> 8) #define BT431_SELECT(curs, regno) do { \ (curs)->bt_lo = TWIN(regno); \ (curs)->bt_hi = 0; \ tc_wmb(); \ } while (0); struct fb_devconfig { vaddr_t dc_vaddr; /* memory space virtual base address */ paddr_t dc_paddr; /* memory space physical base address */ vsize_t dc_size; /* size of slot memory */ int dc_wid; /* width of frame buffer */ int dc_ht; /* height of frame buffer */ int dc_depth; /* depth, bits per pixel */ int dc_rowbytes; /* bytes in a FB scan line */ vaddr_t dc_videobase; /* base of flat frame buffer */ struct raster dc_raster; /* raster description */ struct rcons dc_rcons; /* raster blitter control info */ int dc_blanked; /* currently has video disabled */ }; struct hwcursor64 { struct wsdisplay_curpos cc_pos; struct wsdisplay_curpos cc_hot; struct wsdisplay_curpos cc_size; struct wsdisplay_curpos cc_magic; #define CURSOR_MAX_SIZE 64 u_int8_t cc_color[6]; u_int64_t cc_image[64 + 64]; }; struct mfb_softc { struct device sc_dev; struct fb_devconfig *sc_dc; /* device configuration */ struct hwcursor64 sc_cursor; /* software copy of cursor */ int sc_curenb; /* cursor sprite enabled */ int sc_changed; /* need update of colormap */ #define DATA_ENB_CHANGED 0x01 /* cursor enable changed */ #define DATA_CURCMAP_CHANGED 0x02 /* cursor colormap changed */ #define DATA_CURSHAPE_CHANGED 0x04 /* cursor size, image, mask changed */ #define DATA_CMAP_CHANGED 0x08 /* colormap changed */ #define DATA_ALL_CHANGED 0x0f int nscreens; }; #define MX_MAGIC_X 360 #define MX_MAGIC_Y 36 #define MX_FB_OFFSET 0x200000 #define MX_FB_SIZE 0x40000 #define MX_BT455_OFFSET 0x100000 #define MX_BT431_OFFSET 0x180000 #define MX_IREQ_OFFSET 0x080000 /* Interrupt req. control */ int mfbmatch __P((struct device *, struct cfdata *, void *)); void mfbattach __P((struct device *, struct device *, void *)); struct cfattach mfb_ca = { sizeof(struct mfb_softc), mfbmatch, mfbattach, }; void mfb_getdevconfig __P((tc_addr_t, struct fb_devconfig *)); struct fb_devconfig mfb_console_dc; tc_addr_t mfb_consaddr; struct wsdisplay_emulops mfb_emulops = { rcons_cursor, /* could use hardware cursor; punt */ rcons_mapchar, rcons_putchar, rcons_copycols, rcons_erasecols, rcons_copyrows, rcons_eraserows, rcons_alloc_attr }; struct wsscreen_descr mfb_stdscreen = { "std", 0, 0, &mfb_emulops, 0, 0, 0 }; const struct wsscreen_descr *_mfb_scrlist[] = { &mfb_stdscreen, }; struct wsscreen_list mfb_screenlist = { sizeof(_mfb_scrlist) / sizeof(struct wsscreen_descr *), _mfb_scrlist }; int mfbioctl __P((void *, u_long, caddr_t, int, struct proc *)); int mfbmmap __P((void *, off_t, int)); int mfb_alloc_screen __P((void *, const struct wsscreen_descr *, void **, int *, int *, long *)); void mfb_free_screen __P((void *, void *)); void mfb_show_screen __P((void *, void *)); struct wsdisplay_accessops mfb_accessops = { mfbioctl, mfbmmap, mfb_alloc_screen, mfb_free_screen, mfb_show_screen, 0 /* load_font */ }; int mfb_cnattach __P((tc_addr_t)); int mfbintr __P((void *)); void mfbinit __P((struct fb_devconfig *)); static int set_cursor __P((struct mfb_softc *, struct wsdisplay_cursor *)); static int get_cursor __P((struct mfb_softc *, struct wsdisplay_cursor *)); static void set_curpos __P((struct mfb_softc *, struct wsdisplay_curpos *)); void bt431_set_curpos __P((struct mfb_softc *)); /* bit order reverse */ const static u_int8_t flip[256] = { 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0, 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4, 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2, 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6, 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1, 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb, 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff, }; int mfbmatch(parent, match, aux) struct device *parent; struct cfdata *match; void *aux; { struct tc_attach_args *ta = aux; if (strncmp("PMAG-AA ", ta->ta_modname, TC_ROM_LLEN) != 0) return (0); return (1); } void mfb_getdevconfig(dense_addr, dc) tc_addr_t dense_addr; struct fb_devconfig *dc; { struct raster *rap; struct rcons *rcp; int i; dc->dc_vaddr = dense_addr; dc->dc_paddr = MACHINE_KSEG0_TO_PHYS(dc->dc_vaddr + MX_FB_OFFSET); dc->dc_wid = 1280; dc->dc_ht = 1024; dc->dc_depth = 8; dc->dc_rowbytes = 2048; dc->dc_videobase = dc->dc_vaddr + MX_FB_OFFSET; dc->dc_blanked = 0; /* initialize colormap and cursor resource */ mfbinit(dc); /* clear the screen */ for (i = 0; i < dc->dc_ht * dc->dc_rowbytes; i += sizeof(u_int32_t)) *(u_int32_t *)(dc->dc_videobase + i) = 0; /* initialize the raster */ rap = &dc->dc_raster; rap->width = dc->dc_wid; rap->height = dc->dc_ht; rap->depth = dc->dc_depth; rap->linelongs = dc->dc_rowbytes / sizeof(u_int32_t); rap->pixels = (u_int32_t *)dc->dc_videobase; /* initialize the raster console blitter */ rcp = &dc->dc_rcons; rcp->rc_sp = rap; rcp->rc_crow = rcp->rc_ccol = -1; rcp->rc_crowp = &rcp->rc_crow; rcp->rc_ccolp = &rcp->rc_ccol; rcons_init(rcp, 34, 80); mfb_stdscreen.nrows = dc->dc_rcons.rc_maxrow; mfb_stdscreen.ncols = dc->dc_rcons.rc_maxcol; } void mfbattach(parent, self, aux) struct device *parent, *self; void *aux; { struct mfb_softc *sc = (struct mfb_softc *)self; struct tc_attach_args *ta = aux; struct wsemuldisplaydev_attach_args waa; caddr_t mfbbase; int console; volatile register int junk; console = (ta->ta_addr == mfb_consaddr); if (console) { sc->sc_dc = &mfb_console_dc; sc->nscreens = 1; } else { sc->sc_dc = (struct fb_devconfig *) malloc(sizeof(struct fb_devconfig), M_DEVBUF, M_WAITOK); mfb_getdevconfig(ta->ta_addr, sc->sc_dc); } printf(": %d x %d, %dbpp\n", sc->sc_dc->dc_wid, sc->sc_dc->dc_ht, sc->sc_dc->dc_depth); sc->sc_cursor.cc_magic.x = MX_MAGIC_X; sc->sc_cursor.cc_magic.y = MX_MAGIC_Y; tc_intr_establish(parent, ta->ta_cookie, TC_IPL_TTY, mfbintr, sc); mfbbase = (caddr_t)sc->sc_dc->dc_vaddr; *(u_int8_t *)(mfbbase + MX_IREQ_OFFSET) = 0; junk = *(u_int8_t *)(mfbbase + MX_IREQ_OFFSET); *(u_int8_t *)(mfbbase + MX_IREQ_OFFSET) = 1; waa.console = console; waa.scrdata = &mfb_screenlist; waa.accessops = &mfb_accessops; waa.accesscookie = sc; config_found(self, &waa, wsemuldisplaydevprint); } int mfbioctl(v, cmd, data, flag, p) void *v; u_long cmd; caddr_t data; int flag; struct proc *p; { struct mfb_softc *sc = v; struct fb_devconfig *dc = sc->sc_dc; int turnoff; switch (cmd) { case WSDISPLAYIO_GTYPE: *(u_int *)data = WSDISPLAY_TYPE_MFB; 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_depth; wsd_fbip->cmsize = 0; #undef fbt return (0); case WSDISPLAYIO_GETCMAP: case WSDISPLAYIO_PUTCMAP: return (ENOTTY); case WSDISPLAYIO_SVIDEO: turnoff = *(int *)data == WSDISPLAYIO_VIDEO_OFF; if ((dc->dc_blanked == 0) ^ turnoff) { dc->dc_blanked = turnoff; /* XXX later XXX */ } return (0); case WSDISPLAYIO_GVIDEO: *(u_int *)data = dc->dc_blanked ? WSDISPLAYIO_VIDEO_OFF : WSDISPLAYIO_VIDEO_ON; return (0); case WSDISPLAYIO_GCURPOS: *(struct wsdisplay_curpos *)data = sc->sc_cursor.cc_pos; return (0); case WSDISPLAYIO_SCURPOS: set_curpos(sc, (struct wsdisplay_curpos *)data); bt431_set_curpos(sc); return (0); case WSDISPLAYIO_GCURMAX: ((struct wsdisplay_curpos *)data)->x = ((struct wsdisplay_curpos *)data)->y = CURSOR_MAX_SIZE; return (0); case WSDISPLAYIO_GCURSOR: return get_cursor(sc, (struct wsdisplay_cursor *)data); case WSDISPLAYIO_SCURSOR: return set_cursor(sc, (struct wsdisplay_cursor *)data); } return (ENOTTY); } int mfbmmap(v, offset, prot) void *v; off_t offset; int prot; { struct mfb_softc *sc = v; if (offset >= MX_FB_SIZE || offset < 0) return (-1); return machine_btop(sc->sc_dc->dc_paddr + offset); } int mfb_alloc_screen(v, type, cookiep, curxp, curyp, attrp) void *v; const struct wsscreen_descr *type; void **cookiep; int *curxp, *curyp; long *attrp; { struct mfb_softc *sc = v; long defattr; if (sc->nscreens > 0) return (ENOMEM); *cookiep = &sc->sc_dc->dc_rcons; /* one and only for now */ *curxp = 0; *curyp = 0; rcons_alloc_attr(&sc->sc_dc->dc_rcons, 0, 0, 0, &defattr); *attrp = defattr; sc->nscreens++; return (0); } void mfb_free_screen(v, cookie) void *v; void *cookie; { struct mfb_softc *sc = v; if (sc->sc_dc == &mfb_console_dc) panic("mfb_free_screen: console"); sc->nscreens--; } void mfb_show_screen(v, cookie) void *v; void *cookie; { } int mfb_cnattach(addr) tc_addr_t addr; { struct fb_devconfig *dcp = &mfb_console_dc; long defattr; mfb_getdevconfig(addr, dcp); rcons_alloc_attr(&dcp->dc_rcons, 0, 0, 0, &defattr); wsdisplay_cnattach(&mfb_stdscreen, &dcp->dc_rcons, 0, 0, defattr); mfb_consaddr = addr; return (0); } int mfbintr(arg) void *arg; { struct mfb_softc *sc = arg; caddr_t mfbbase = (caddr_t)sc->sc_dc->dc_vaddr; struct bt455reg *vdac; struct bt431reg *curs; int v; volatile register int junk; junk = *(u_int8_t *)(mfbbase + MX_IREQ_OFFSET); /* *(u_int8_t *)(mfbbase + MX_IREQ_OFFSET) = 1; */ if (sc->sc_changed == 0) return (1); vdac = (void *)(mfbbase + MX_BT455_OFFSET); curs = (void *)(mfbbase + MX_BT431_OFFSET); v = sc->sc_changed; sc->sc_changed = 0; if (v & DATA_ENB_CHANGED) { BT431_SELECT(curs, BT431_REG_COMMAND); curs->bt_ctl = (sc->sc_curenb) ? 0x4444 : 0x0404; } if (v & DATA_CURCMAP_CHANGED) { u_int8_t *cp = sc->sc_cursor.cc_color; BT455_SELECT(vdac, 8); vdac->bt_cmap = 0; tc_wmb(); vdac->bt_cmap = cp[1]; tc_wmb(); vdac->bt_cmap = 0; tc_wmb(); vdac->bt_cmap = 0; tc_wmb(); vdac->bt_cmap = cp[1]; tc_wmb(); vdac->bt_cmap = 0; tc_wmb(); vdac->bt_ovly = 0; tc_wmb(); vdac->bt_ovly = cp[0]; tc_wmb(); vdac->bt_ovly = 0; tc_wmb(); } if (v & DATA_CURSHAPE_CHANGED) { u_int8_t *ip, *mp, img, msk; int bcnt; ip = (u_int8_t *)sc->sc_cursor.cc_image; mp = (u_int8_t *)(sc->sc_cursor.cc_image + CURSOR_MAX_SIZE); bcnt = 0; BT431_SELECT(curs, BT431_REG_CRAM_BASE); /* 64 pixel scan line is consisted with 16 byte cursor ram */ while (bcnt < sc->sc_cursor.cc_size.y * 16) { /* pad right half 32 pixel when smaller than 33 */ if ((bcnt & 0x8) && sc->sc_cursor.cc_size.x < 33) { curs->bt_ram = 0; tc_wmb(); } else { img = *ip++; msk = *mp++; img &= msk; /* cookie off image */ curs->bt_ram = (flip[msk] << 8) | flip[img]; tc_wmb(); } bcnt += 2; } /* pad unoccupied scan lines */ while (bcnt < CURSOR_MAX_SIZE * 16) { curs->bt_ram = 0; tc_wmb(); bcnt += 2; } } return (1); } void mfbinit(dc) struct fb_devconfig *dc; { caddr_t mfbbase = (caddr_t)dc->dc_vaddr; struct bt431reg *curs = (void *)(mfbbase + MX_BT431_OFFSET); struct bt455reg *vdac = (void *)(mfbbase + MX_BT455_OFFSET); int i; BT431_SELECT(curs, BT431_REG_COMMAND); curs->bt_ctl = 0x0404; tc_wmb(); curs->bt_ctl = 0; tc_wmb(); curs->bt_ctl = 0; tc_wmb(); curs->bt_ctl = 0; tc_wmb(); curs->bt_ctl = 0; tc_wmb(); curs->bt_ctl = 0; tc_wmb(); curs->bt_ctl = 0; tc_wmb(); curs->bt_ctl = 0; tc_wmb(); curs->bt_ctl = 0; tc_wmb(); curs->bt_ctl = 0; tc_wmb(); curs->bt_ctl = 0; tc_wmb(); curs->bt_ctl = 0; tc_wmb(); curs->bt_ctl = 0; tc_wmb(); BT455_SELECT(vdac, 0); vdac->bt_cmap = 0; tc_wmb(); vdac->bt_cmap = 0; tc_wmb(); vdac->bt_cmap = 0; tc_wmb(); vdac->bt_cmap = 0; tc_wmb(); vdac->bt_cmap = 0xff; tc_wmb(); vdac->bt_cmap = 0; tc_wmb(); for (i = 2; i < 16; i++) { vdac->bt_cmap = 0; tc_wmb(); vdac->bt_cmap = 0; tc_wmb(); vdac->bt_cmap = 0; tc_wmb(); } vdac->bt_ovly = 0; tc_wmb(); vdac->bt_ovly = 0xff; tc_wmb(); vdac->bt_ovly = 0; tc_wmb(); } static int set_cursor(sc, p) struct mfb_softc *sc; struct wsdisplay_cursor *p; { #define cc (&sc->sc_cursor) int v, count, index; v = p->which; if (v & WSDISPLAY_CURSOR_DOCMAP) { index = p->cmap.index; count = p->cmap.count; if (index >= 2 || (index + count) > 2) return (EINVAL); if (!uvm_useracc(p->cmap.red, count, B_READ)) return (EFAULT); } if (v & WSDISPLAY_CURSOR_DOSHAPE) { if (p->size.x > CURSOR_MAX_SIZE || p->size.y > CURSOR_MAX_SIZE) return (EINVAL); count = ((p->size.x < 33) ? 4 : 8) * p->size.y; if (!uvm_useracc(p->image, count, B_READ) || !uvm_useracc(p->mask, count, B_READ)) return (EFAULT); } if (v & (WSDISPLAY_CURSOR_DOPOS | WSDISPLAY_CURSOR_DOCUR)) { if (v & WSDISPLAY_CURSOR_DOCUR) cc->cc_hot = p->hot; if (v & WSDISPLAY_CURSOR_DOPOS) set_curpos(sc, &p->pos); bt431_set_curpos(sc); } sc->sc_changed = 0; if (v & WSDISPLAY_CURSOR_DOCUR) { sc->sc_curenb = p->enable; sc->sc_changed |= DATA_ENB_CHANGED; } if (v & WSDISPLAY_CURSOR_DOCMAP) { copyin(p->cmap.red, &cc->cc_color[index], count); sc->sc_changed |= DATA_CURCMAP_CHANGED; } if (v & WSDISPLAY_CURSOR_DOSHAPE) { cc->cc_size = p->size; memset(cc->cc_image, 0, sizeof cc->cc_image); copyin(p->image, cc->cc_image, count); copyin(p->mask, cc->cc_image+CURSOR_MAX_SIZE, count); sc->sc_changed |= DATA_CURSHAPE_CHANGED; } return (0); #undef cc } static int get_cursor(sc, p) struct mfb_softc *sc; struct wsdisplay_cursor *p; { return (ENOTTY); /* XXX */ } static void set_curpos(sc, curpos) struct mfb_softc *sc; struct wsdisplay_curpos *curpos; { struct fb_devconfig *dc = sc->sc_dc; int x = curpos->x, y = curpos->y; if (y < 0) y = 0; else if (y > dc->dc_ht) y = dc->dc_ht; if (x < 0) x = 0; else if (x > dc->dc_wid) x = dc->dc_wid; sc->sc_cursor.cc_pos.x = x; sc->sc_cursor.cc_pos.y = y; } void bt431_set_curpos(sc) struct mfb_softc *sc; { caddr_t mfbbase = (caddr_t)sc->sc_dc->dc_vaddr; struct bt431reg *curs = (void *)(mfbbase + MX_BT431_OFFSET); u_int16_t twin; int x, y, s; x = sc->sc_cursor.cc_pos.x - sc->sc_cursor.cc_hot.x; y = sc->sc_cursor.cc_pos.y - sc->sc_cursor.cc_hot.y; x += sc->sc_cursor.cc_magic.x; y += sc->sc_cursor.cc_magic.y; s = spltty(); BT431_SELECT(curs, BT431_REG_CURSOR_X_LOW); curs->bt_ctl = TWIN_LO(x); tc_wmb(); curs->bt_ctl = TWIN_HI(x); tc_wmb(); curs->bt_ctl = TWIN_LO(y); tc_wmb(); curs->bt_ctl = TWIN_HI(y); tc_wmb(); splx(s); }