/* $NetBSD: xcfb.c,v 1.13 1999/11/29 07:50:55 nisimura Exp $ */ /* * Copyright (c) 1998, 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: xcfb.c,v 1.13 1999/11/29 07:50:55 nisimura Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include 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 hwcmap256 { #define CMAP_SIZE 256 /* 256 R/G/B entries */ u_int8_t r[CMAP_SIZE]; u_int8_t g[CMAP_SIZE]; u_int8_t b[CMAP_SIZE]; }; struct hwcursor64 { struct wsdisplay_curpos cc_pos; struct wsdisplay_curpos cc_hot; struct wsdisplay_curpos cc_size; struct wsdisplay_curpos cc_magic; /* not used by PMAG-DV */ #define CURSOR_MAX_SIZE 64 u_int8_t cc_color[6]; u_int64_t cc_image[64 + 64]; }; #define XCFB_FB_OFFSET 0x2000000 /* from module's base */ #define XCFB_FB_SIZE 0x100000 /* frame buffer size */ #define IMS332_HIGH (IOASIC_SLOT_5_START) #define IMS332_RLOW (IOASIC_SLOT_7_START) #define IMS332_WLOW (IOASIC_SLOT_7_START + 0x20000) struct xcfb_softc { struct device sc_dev; struct fb_devconfig *sc_dc; /* device configuration */ struct hwcmap256 sc_cmap; /* software copy of colormap */ struct hwcursor64 sc_cursor; /* software copy of cursor */ /* XXX MAXINE can take PMAG-DV virtical retrace interrupt XXX */ int nscreens; /* cursor coordiate is located at upper-left corner */ int sc_csr; /* software copy of IMS332 CSR A */ }; static int xcfbmatch __P((struct device *, struct cfdata *, void *)); static void xcfbattach __P((struct device *, struct device *, void *)); const struct cfattach xcfb_ca = { sizeof(struct xcfb_softc), xcfbmatch, xcfbattach, }; static tc_addr_t xcfb_consaddr; static struct fb_devconfig xcfb_console_dc; static void xcfb_getdevconfig __P((tc_addr_t, struct fb_devconfig *)); static void xcfbinit __P((struct fb_devconfig *)); int xcfb_cnattach __P((void)); static const struct wsdisplay_emulops xcfb_emulops = { rcons_cursor, rcons_mapchar, rcons_putchar, rcons_copycols, rcons_erasecols, rcons_copyrows, rcons_eraserows, rcons_alloc_attr }; struct wsscreen_descr xcfb_stdscreen = { "std", 0, 0, /* will be filled in -- XXX shouldn't, it's global */ &xcfb_emulops, 0, 0, WSSCREEN_REVERSE }; static const struct wsscreen_descr *_xcfb_scrlist[] = { &xcfb_stdscreen, }; static const struct wsscreen_list xcfb_screenlist = { sizeof(_xcfb_scrlist) / sizeof(struct wsscreen_descr *), _xcfb_scrlist }; static int xcfbioctl __P((void *, u_long, caddr_t, int, struct proc *)); static int xcfbmmap __P((void *, off_t, int)); static int xcfb_alloc_screen __P((void *, const struct wsscreen_descr *, void **, int *, int *, long *)); static void xcfb_free_screen __P((void *, void *)); static void xcfb_show_screen __P((void *, void *)); static const struct wsdisplay_accessops xcfb_accessops = { xcfbioctl, xcfbmmap, xcfb_alloc_screen, xcfb_free_screen, xcfb_show_screen, 0 /* load_font */ }; static int xcfbintr __P((void *)); static void xcfb_screenblank __P((struct xcfb_softc *)); static int set_cmap __P((struct xcfb_softc *, struct wsdisplay_cmap *)); static int get_cmap __P((struct xcfb_softc *, struct wsdisplay_cmap *)); static int set_cursor __P((struct xcfb_softc *, struct wsdisplay_cursor *)); static int get_cursor __P((struct xcfb_softc *, struct wsdisplay_cursor *)); static void set_curpos __P((struct xcfb_softc *, struct wsdisplay_curpos *)); static void ims332_loadcmap __P((struct hwcmap256 *)); static void ims332_set_curpos __P((struct xcfb_softc *)); static void ims332_load_curcmap __P((struct xcfb_softc *)); static void ims332_load_curshape __P((struct xcfb_softc *)); static void ims332_write_reg __P((int, u_int32_t)); #if 0 static u_int32_t ims332_read_reg __P((int)); #endif extern long ioasic_base; /* XXX */ /* * Compose 2 bit/pixel cursor image. * M M M M I I I I M I M I M I M I * [ before ] [ after ] * 3 2 1 0 3 2 1 0 3 3 2 2 1 1 0 0 * 7 6 5 4 7 6 5 4 7 7 6 6 5 5 4 4 */ static const u_int8_t shuffle[256] = { 0x00, 0x01, 0x04, 0x05, 0x10, 0x11, 0x14, 0x15, 0x40, 0x41, 0x44, 0x45, 0x50, 0x51, 0x54, 0x55, 0x02, 0x03, 0x06, 0x07, 0x12, 0x13, 0x16, 0x17, 0x42, 0x43, 0x46, 0x47, 0x52, 0x53, 0x56, 0x57, 0x08, 0x09, 0x0c, 0x0d, 0x18, 0x19, 0x1c, 0x1d, 0x48, 0x49, 0x4c, 0x4d, 0x58, 0x59, 0x5c, 0x5d, 0x0a, 0x0b, 0x0e, 0x0f, 0x1a, 0x1b, 0x1e, 0x1f, 0x4a, 0x4b, 0x4e, 0x4f, 0x5a, 0x5b, 0x5e, 0x5f, 0x20, 0x21, 0x24, 0x25, 0x30, 0x31, 0x34, 0x35, 0x60, 0x61, 0x64, 0x65, 0x70, 0x71, 0x74, 0x75, 0x22, 0x23, 0x26, 0x27, 0x32, 0x33, 0x36, 0x37, 0x62, 0x63, 0x66, 0x67, 0x72, 0x73, 0x76, 0x77, 0x28, 0x29, 0x2c, 0x2d, 0x38, 0x39, 0x3c, 0x3d, 0x68, 0x69, 0x6c, 0x6d, 0x78, 0x79, 0x7c, 0x7d, 0x2a, 0x2b, 0x2e, 0x2f, 0x3a, 0x3b, 0x3e, 0x3f, 0x6a, 0x6b, 0x6e, 0x6f, 0x7a, 0x7b, 0x7e, 0x7f, 0x80, 0x81, 0x84, 0x85, 0x90, 0x91, 0x94, 0x95, 0xc0, 0xc1, 0xc4, 0xc5, 0xd0, 0xd1, 0xd4, 0xd5, 0x82, 0x83, 0x86, 0x87, 0x92, 0x93, 0x96, 0x97, 0xc2, 0xc3, 0xc6, 0xc7, 0xd2, 0xd3, 0xd6, 0xd7, 0x88, 0x89, 0x8c, 0x8d, 0x98, 0x99, 0x9c, 0x9d, 0xc8, 0xc9, 0xcc, 0xcd, 0xd8, 0xd9, 0xdc, 0xdd, 0x8a, 0x8b, 0x8e, 0x8f, 0x9a, 0x9b, 0x9e, 0x9f, 0xca, 0xcb, 0xce, 0xcf, 0xda, 0xdb, 0xde, 0xdf, 0xa0, 0xa1, 0xa4, 0xa5, 0xb0, 0xb1, 0xb4, 0xb5, 0xe0, 0xe1, 0xe4, 0xe5, 0xf0, 0xf1, 0xf4, 0xf5, 0xa2, 0xa3, 0xa6, 0xa7, 0xb2, 0xb3, 0xb6, 0xb7, 0xe2, 0xe3, 0xe6, 0xe7, 0xf2, 0xf3, 0xf6, 0xf7, 0xa8, 0xa9, 0xac, 0xad, 0xb8, 0xb9, 0xbc, 0xbd, 0xe8, 0xe9, 0xec, 0xed, 0xf8, 0xf9, 0xfc, 0xfd, 0xaa, 0xab, 0xae, 0xaf, 0xba, 0xbb, 0xbe, 0xbf, 0xea, 0xeb, 0xee, 0xef, 0xfa, 0xfb, 0xfe, 0xff, }; static int xcfbmatch(parent, match, aux) struct device *parent; struct cfdata *match; void *aux; { struct tc_attach_args *ta = aux; if (strncmp("PMAG-DV ", ta->ta_modname, TC_ROM_LLEN) != 0) return (0); return (1); } static void xcfb_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 = MIPS_KSEG1_TO_PHYS(dc->dc_vaddr + XCFB_FB_OFFSET); dc->dc_wid = 1024; dc->dc_ht = 768; dc->dc_depth = 8; dc->dc_rowbytes = 1024; dc->dc_videobase = dc->dc_vaddr + XCFB_FB_OFFSET; dc->dc_blanked = 0; /* initialize colormap and cursor resource */ xcfbinit(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); xcfb_stdscreen.nrows = dc->dc_rcons.rc_maxrow; xcfb_stdscreen.ncols = dc->dc_rcons.rc_maxcol; } static void xcfbattach(parent, self, aux) struct device *parent, *self; void *aux; { struct xcfb_softc *sc = (struct xcfb_softc *)self; struct tc_attach_args *ta = aux; struct wsemuldisplaydev_attach_args waa; struct hwcmap256 *cm; int console; console = (ta->ta_addr == xcfb_consaddr); if (console) { sc->sc_dc = &xcfb_console_dc; sc->nscreens = 1; } else { sc->sc_dc = (struct fb_devconfig *) malloc(sizeof(struct fb_devconfig), M_DEVBUF, M_WAITOK); xcfb_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); cm = &sc->sc_cmap; memset(cm, 255, sizeof(struct hwcmap256)); /* XXX */ cm->r[0] = cm->g[0] = cm->b[0] = 0; /* XXX */ sc->sc_csr = IMS332_BPP_8 | IMS332_CSR_A_VTG_ENABLE; tc_intr_establish(parent, ta->ta_cookie, IPL_TTY, xcfbintr, sc); waa.console = console; waa.scrdata = &xcfb_screenlist; waa.accessops = &xcfb_accessops; waa.accesscookie = sc; config_found(self, &waa, wsemuldisplaydevprint); } int xcfb_cnattach() { tc_addr_t addr = MIPS_PHYS_TO_KSEG1(XINE_PHYS_CFB_START); struct fb_devconfig *dcp = &xcfb_console_dc; long defattr; xcfb_getdevconfig(addr, dcp); rcons_alloc_attr(&dcp->dc_rcons, 0, 0, 0, &defattr); wsdisplay_cnattach(&xcfb_stdscreen, &dcp->dc_rcons, 0, 0, defattr); xcfb_consaddr = addr; return (0); } static void xcfbinit(dc) struct fb_devconfig *dc; { u_int32_t csr; int i; csr = *(u_int32_t *)(ioasic_base + IOASIC_CSR); csr &= ~XINE_CSR_VDAC_ENABLE; *(u_int32_t *)(ioasic_base + IOASIC_CSR) = csr; DELAY(50); csr |= XINE_CSR_VDAC_ENABLE; *(u_int32_t *)(ioasic_base + IOASIC_CSR) = csr; DELAY(50); ims332_write_reg(IMS332_REG_BOOT, 0x2c); ims332_write_reg(IMS332_REG_CSR_A, IMS332_BPP_8|IMS332_CSR_A_DISABLE_CURSOR); ims332_write_reg(IMS332_REG_HALF_SYNCH, 0x10); ims332_write_reg(IMS332_REG_BACK_PORCH, 0x21); ims332_write_reg(IMS332_REG_DISPLAY, 0x100); ims332_write_reg(IMS332_REG_SHORT_DIS, 0x5d); ims332_write_reg(IMS332_REG_BROAD_PULSE, 0x9f); ims332_write_reg(IMS332_REG_LINE_TIME, 0x146); ims332_write_reg(IMS332_REG_V_SYNC, 0x0c); ims332_write_reg(IMS332_REG_V_PRE_EQUALIZE, 0x02); ims332_write_reg(IMS332_REG_V_POST_EQUALIZE, 0x02); ims332_write_reg(IMS332_REG_V_BLANK, 0x2a); ims332_write_reg(IMS332_REG_V_DISPLAY, 0x600); ims332_write_reg(IMS332_REG_LINE_START, 0x10); ims332_write_reg(IMS332_REG_MEM_INIT, 0x0a); ims332_write_reg(IMS332_REG_COLOR_MASK, 0xffffff); ims332_write_reg(IMS332_REG_CSR_A, IMS332_BPP_8|IMS332_CSR_A_VTG_ENABLE); /* build sane colormap */ ims332_write_reg(IMS332_REG_LUT_BASE, 0); for (i = 1; i < CMAP_SIZE; i++) ims332_write_reg(IMS332_REG_LUT_BASE + i, 0xffffff); /* clear out cursor image */ for (i = 0; i < 512; i++) ims332_write_reg(IMS332_REG_CURSOR_RAM + i, 0); /* * 2 bit/pixel cursor. Assign MSB for cursor mask and LSB for * cursor image. LUT_1 for mask color, while LUT_2 for * image color. LUT_0 will be never used. */ ims332_write_reg(IMS332_REG_CURSOR_LUT_0, 0); ims332_write_reg(IMS332_REG_CURSOR_LUT_1, 0xffffff); ims332_write_reg(IMS332_REG_CURSOR_LUT_2, 0xffffff); } static int xcfbioctl(v, cmd, data, flag, p) void *v; u_long cmd; caddr_t data; int flag; struct proc *p; { struct xcfb_softc *sc = v; struct fb_devconfig *dc = sc->sc_dc; int turnoff, error; switch (cmd) { case WSDISPLAYIO_GTYPE: *(u_int *)data = WSDISPLAY_TYPE_XCFB; 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 = CMAP_SIZE; #undef fbt return (0); case WSDISPLAYIO_GETCMAP: return get_cmap(sc, (struct wsdisplay_cmap *)data); case WSDISPLAYIO_PUTCMAP: error = set_cmap(sc, (struct wsdisplay_cmap *)data); if (error == 0) ims332_loadcmap(&sc->sc_cmap); return (error); case WSDISPLAYIO_SVIDEO: turnoff = *(int *)data == WSDISPLAYIO_VIDEO_OFF; if ((dc->dc_blanked == 0) ^ turnoff) { dc->dc_blanked = turnoff; xcfb_screenblank(sc); } 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); ims332_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; } static int xcfbmmap(v, offset, prot) void *v; off_t offset; int prot; { struct xcfb_softc *sc = v; if (offset >= XCFB_FB_SIZE || offset < 0) return -1; return mips_btop(sc->sc_dc->dc_paddr + offset); } static int xcfb_alloc_screen(v, type, cookiep, curxp, curyp, attrp) void *v; const struct wsscreen_descr *type; void **cookiep; int *curxp, *curyp; long *attrp; { struct xcfb_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); } static void xcfb_free_screen(v, cookie) void *v; void *cookie; { struct xcfb_softc *sc = v; if (sc->sc_dc == &xcfb_console_dc) panic("xcfb_free_screen: console"); sc->nscreens--; } static void xcfb_show_screen(v, cookie) void *v; void *cookie; { } static int xcfbintr(v) void *v; { int intr; intr = *(u_int32_t *)(ioasic_base + IOASIC_INTR); intr &= ~XINE_INTR_VINT; *(u_int32_t *)(ioasic_base + IOASIC_INTR) = intr; return 1; } static void xcfb_screenblank(sc) struct xcfb_softc *sc; { if (sc->sc_dc->dc_blanked) sc->sc_csr |= IMS332_CSR_A_FORCE_BLANK; else sc->sc_csr &= ~IMS332_CSR_A_FORCE_BLANK; ims332_write_reg(IMS332_REG_CSR_A, sc->sc_csr); } static int get_cmap(sc, p) struct xcfb_softc *sc; struct wsdisplay_cmap *p; { u_int index = p->index, count = p->count; if (index >= CMAP_SIZE || (index + count) > CMAP_SIZE) return (EINVAL); if (!uvm_useracc(p->red, count, B_WRITE) || !uvm_useracc(p->green, count, B_WRITE) || !uvm_useracc(p->blue, count, B_WRITE)) return (EFAULT); copyout(&sc->sc_cmap.r[index], p->red, count); copyout(&sc->sc_cmap.g[index], p->green, count); copyout(&sc->sc_cmap.b[index], p->blue, count); return (0); } static int set_cmap(sc, p) struct xcfb_softc *sc; struct wsdisplay_cmap *p; { u_int index = p->index, count = p->count; if (index >= CMAP_SIZE || (index + count) > CMAP_SIZE) return (EINVAL); if (!uvm_useracc(p->red, count, B_READ) || !uvm_useracc(p->green, count, B_READ) || !uvm_useracc(p->blue, count, B_READ)) return (EFAULT); copyin(p->red, &sc->sc_cmap.r[index], count); copyin(p->green, &sc->sc_cmap.g[index], count); copyin(p->blue, &sc->sc_cmap.b[index], count); return (0); } static int set_cursor(sc, p) struct xcfb_softc *sc; struct wsdisplay_cursor *p; { #define cc (&sc->sc_cursor) int v, index, count; 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) || !uvm_useracc(p->cmap.green, count, B_READ) || !uvm_useracc(p->cmap.blue, count, B_READ)) return (EFAULT); copyin(p->cmap.red, &cc->cc_color[index], count); copyin(p->cmap.green, &cc->cc_color[index + 2], count); copyin(p->cmap.blue, &cc->cc_color[index + 4], count); ims332_load_curcmap(sc); } 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); 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); ims332_load_curshape(sc); } if (v & WSDISPLAY_CURSOR_DOCUR) { cc->cc_hot = p->hot; if (p->enable) sc->sc_csr &= ~IMS332_CSR_A_DISABLE_CURSOR; else sc->sc_csr |= IMS332_CSR_A_DISABLE_CURSOR; ims332_write_reg(IMS332_REG_CSR_A, sc->sc_csr); } if (v & WSDISPLAY_CURSOR_DOPOS) { set_curpos(sc, &p->pos); ims332_set_curpos(sc); } return (0); #undef cc } static int get_cursor(sc, p) struct xcfb_softc *sc; struct wsdisplay_cursor *p; { return (ENOTTY); /* XXX */ } static void set_curpos(sc, curpos) struct xcfb_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; } static void ims332_loadcmap(cm) struct hwcmap256 *cm; { int i; u_int32_t rgb; for (i = 0; i < CMAP_SIZE; i++) { rgb = cm->b[i] << 16 | cm->g[i] << 8 | cm->r[i]; ims332_write_reg(IMS332_REG_LUT_BASE + i, rgb); } } static void ims332_set_curpos(sc) struct xcfb_softc *sc; { struct wsdisplay_curpos *curpos = &sc->sc_cursor.cc_pos; u_int32_t pos; int s; s = spltty(); pos = (curpos->x & 0xfff) << 12 | (curpos->y & 0xfff); ims332_write_reg(IMS332_REG_CURSOR_LOC, pos); splx(s); } static void ims332_load_curcmap(sc) struct xcfb_softc *sc; { u_int8_t *cp = sc->sc_cursor.cc_color; u_int32_t rgb; /* cursor background */ rgb = cp[5] << 16 | cp[3] << 8 | cp[1]; ims332_write_reg(IMS332_REG_CURSOR_LUT_1, rgb); /* cursor foreground */ rgb = cp[4] << 16 | cp[2] << 8 | cp[0]; ims332_write_reg(IMS332_REG_CURSOR_LUT_2, rgb); } static void ims332_load_curshape(sc) struct xcfb_softc *sc; { unsigned i, img, msk, bits; u_int8_t u, *ip, *mp; ip = (u_int8_t *)sc->sc_cursor.cc_image; mp = (u_int8_t *)(sc->sc_cursor.cc_image+CURSOR_MAX_SIZE); i = 0; /* 64 pixel scan line is consisted with 8 halfward cursor ram */ while (i < sc->sc_cursor.cc_size.y * 8) { /* pad right half 32 pixel when smaller than 33 */ if ((i & 0x4) && sc->sc_cursor.cc_size.x < 33) bits = 0; else { img = *ip++; msk = *mp++; img &= msk; /* cookie off image */ u = (msk & 0x0f) << 4 | (img & 0x0f); bits = shuffle[u]; u = (msk & 0xf0) | (img & 0xf0) >> 4; bits = (shuffle[u] << 8) | bits; } ims332_write_reg(IMS332_REG_CURSOR_RAM + i, bits); i += 1; } /* pad unoccupied scan lines */ while (i < CURSOR_MAX_SIZE * 8) { ims332_write_reg(IMS332_REG_CURSOR_RAM + i, 0); i += 1; } } static void ims332_write_reg(regno, val) int regno; u_int32_t val; { caddr_t high8 = (caddr_t)(ioasic_base + IMS332_HIGH); caddr_t low16 = (caddr_t)(ioasic_base + IMS332_WLOW) + (regno << 4); *(volatile u_int16_t *)high8 = (val & 0xff0000) >> 8; *(volatile u_int16_t *)low16 = val; } #if 0 static u_int32_t ims332_read_reg(regno) int regno; { caddr_t high8 = (caddr_t)(ioasic_base + IMS332_HIGH); caddr_t low16 = (caddr_t)(ioasic_base + IMS332_RLOW) + (regno << 4); u_int v0, v1; v1 = *(volatile u_int16_t *)high8; v0 = *(volatile u_int16_t *)low16; return (v1 & 0xff00) << 8 | v0; } #endif