/* $NetBSD: grf_ul.c,v 1.51 2016/11/03 22:08:31 kamil Exp $ */ #define UL_DEBUG /*- * Copyright (c) 1995 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Ignatios Souvatzis. * * 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``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 FOUNDATION OR CONTRIBUTORS * 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 "opt_amigacons.h" #include __KERNEL_RCSID(0, "$NetBSD: grf_ul.c,v 1.51 2016/11/03 22:08:31 kamil Exp $"); #include "grful.h" #include "ite.h" #if NGRFUL > 0 /* Graphics routines for the University of Lowell A2410 board, using the TMS34010 processor. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include extern u_int16_t tmscode[]; int ul_ioctl(struct grf_softc *, u_long, void *, dev_t); int ul_getcmap(struct grf_softc *, struct grf_colormap *, dev_t); int ul_putcmap(struct grf_softc *, struct grf_colormap *, dev_t); int ul_bitblt(struct grf_softc *, struct grf_bitblt *, dev_t); int ul_blank(struct grf_softc *, int *, dev_t); static int ulisr(void *); int ulowell_alive(struct grfvideo_mode *); static void ul_load_code(struct grf_softc *); static int ul_load_mon(struct grf_softc *, struct grfvideo_mode *); static int ul_getvmode(struct grf_softc *, struct grfvideo_mode *); static int ul_setvmode(struct grf_softc *, unsigned); static inline void ul_setfb(struct grf_softc *, u_long); /* * marked true early so that ulowell_cnprobe() can tell if we are alive. */ int ulowell_inited; /* standard-palette definition */ u_int8_t ul_std_palette[] = { 0,128, 0,128, 0,128, 0,128, 0,255, 0,255, 0,255, 0,255, 0, 0,128,128, 0, 0,128,128, 0, 0,255,255, 0, 0,255,255, 0, 0, 0, 0, 128,128,128,128, 0, 0, 0, 0, 255,255,255,255}; u_int8_t ul_ovl_palette[] = { 128, 0, 0, 0, 128, 0, 0, 0, 128, 0, 0, 0}; struct grfvideo_mode ul_monitor_defs[] = { /* * We give all these values in MI units, that is: * horizontal timings in units of pixels * vertical timings in units of lines * point of reference is blanking end. * * The ul_load_mon transforms these values right before loading * them into the chip. * * This leaves us with a single point where things are transformed, * which should make life easier if we ever change things again. */ /* 1024x768, 60Hz */ {1,"1024x768", 66667000, 1024,768,8, 1024,1088,1296,1392, 768,771,774,798, 0}, /* 864x648, 70Hz */ {2,"864x648", 50000000, 864,648,8, 864,928,992,1056, 648,658,663,678, 0}, /* 800x600, 60Hz */ {3, "800x600", 36000000, 800,600,8, 800,864,928,992, 600,610,615,630, 0}, /* 640x400, 60 Hz, interlaced */ {4, "640x400i", 14318000, 640,400,8, 640,768,832,912, 200,223,203,240, 1}, /* 1024x768, 65Hz interlaced, s.th. is strange */ {5, "1024x768?i", 44980000, 1024,768,8, 1024,1072,1136,1280, 488,509,512,534, 1}, /* 1024x1024, 60Hz */ {6, "1024x1024", 80000000, 1024,1024,8, 1024,1040,1120,1248, 1024,1027,1030,1055, 0}, /* 736x480, 60 Hz */ {7, "736x480", 28636300, 736,480,8, 736,784,848,928, 480,491,495,515, 0}, }; int ulowell_mon_max = sizeof (ul_monitor_defs)/sizeof (ul_monitor_defs[0]); /* option settable */ #ifndef ULOWELL_OSC1 #define ULOWELL_OSC1 36000000 #endif #ifndef ULOWELL_OSC2 #define ULOWELL_OSC2 66667000 #endif #ifndef ULOWELL_DEFAULT_MON #define ULOWELL_DEFAULT_MON 1 #endif /* patchable */ int ulowell_default_mon = ULOWELL_DEFAULT_MON; int ulowell_default_gfx = ULOWELL_DEFAULT_MON; /* * yes, this should be per board. We don't pay service to multiple boards, * anyway. */ u_long ulowell_clock[2] = { ULOWELL_OSC2, ULOWELL_OSC1 }; static struct grfvideo_mode *current_mon; /* * We dont use ints at the moment, but will need this later to avoid * busy_waiting in gsp_write, and we use it for spurious int warnings. */ static int ulisr(void *arg) { struct grf_softc *gp = arg; volatile struct gspregs *ba; u_int16_t thebits; if (gp == NULL) return 0; ba = (volatile struct gspregs *)gp->g_regkva; if (ba == NULL) return 0; thebits = ba->ctrl; if (thebits & INTOUT) { log(LOG_INFO, "grf4: got interrupt, ctrl=0x%4x\n", thebits); /* clear int */ ba->ctrl = thebits & ~INTOUT; return 1; } return 0; } /* * used to query the ulowell board to see if its alive. * for the moment, a NOP. */ int ulowell_alive(struct grfvideo_mode *mdp) { return 1; } /* * Load the (mostly) ite support code and the default colormaps. */ static void ul_load_code(struct grf_softc *gp) { struct grf_ul_softc *gup; volatile struct gspregs *ba; struct grfinfo *gi; int i,j; #if 0 struct grf_colormap gcm; #endif gup = (struct grf_ul_softc *)gp; ba = (volatile struct gspregs *)gp->g_regkva; gi = &gp->g_display; gi->gd_regaddr = ztwopa((volatile void *)ba); gi->gd_regsize = sizeof(struct gspregs); gi->gd_fbaddr = NULL; gi->gd_fbsize = 0; gi->gd_fbwidth = 1024; gi->gd_fbheight = 1024; gi->gd_colors = 256; ba->ctrl = (ba->ctrl & ~INCR) | (LBL | INCW); ba->hstadrh = 0xC000; ba->hstadrl = 0x0080; ba->data = 0x0; /* disable screen refresh and video output */ ba->data = 0xFFFC; /* screen refresh base address */ ba->data = 0xFFFF; /* no display int possible */ ba->data = 0x000C; /* CAS before RAS refresh each 64 local clks */ ba->ctrl = (ba->ctrl & ~INCW) | LBL; ba->hstadrh = 0xfe80; ba->hstadrl = 0; ba->data = 4; ba->hstadrl = 0x20; ba->data = 0xFF; /* all color planes visible */ ba->hstadrl = 0; ba->data = 5; ba->hstadrl = 0x20; ba->data = 0; /* no color planes blinking */ ba->hstadrl = 0; ba->data = 6; ba->hstadrl = 0x20; ba->data = gup->gus_ovslct = 0x43; /* overlay visible, no overlay blinking, overlay color 0 transparent */ ba->hstadrl = 0; ba->data = 7; ba->hstadrl = 0x20; ba->data = 0; /* voodoo */ /* clear overlay planes */ ba->ctrl |= INCW; ba->hstadrh = 0xff80; ba->hstadrl = 0x0000; for (i=0xff80000; i< 0xffa0000; ++i) { ba->data = 0; } /* download tms code */ ba->ctrl = LBL | INCW | NMI | NMIM | HLT | CF; printf("\ndownloading TMS code"); i=0; while ((j = tmscode[i++])) { printf("."); ba->hstadrh = tmscode[i++]; ba->hstadrl = tmscode[i++]; while (j-- > 0) { ba->data = tmscode[i++]; } } /* font info was uploaded in ite_ul.c(ite_ulinit). */ #if 1 /* XXX load image palette with some initial values, slightly hacky */ ba->hstadrh = 0xfe80; ba->hstadrl = 0x0000; ba->ctrl |= INCW; ba->data = 0; ba->ctrl &= ~INCW; for (i=0; i<16; ++i) { ba->data = gup->gus_imcmap[i+ 0] = ul_std_palette[i+ 0]; ba->data = gup->gus_imcmap[i+256] = ul_std_palette[i+16]; ba->data = gup->gus_imcmap[i+512] = ul_std_palette[i+32]; } /* * XXX load shadow overlay palette with what the TMS code will load * into the real one some time after the TMS code is started below. * This might be considered a rude hack. */ memcpy(gup->gus_ovcmap, ul_ovl_palette, 3*4); /* * Unflush cache, unhalt CPU -> nmi starts to run. This MUST NOT BE * DONE before the image color map initialization above, to guarantee * the index register in the BT458 is not used by more than one CPU * at once. * * XXX For the same reason, we'll have to rething ul_putcmap(). For * details, look at comment there. */ ba->ctrl &= ~(HLT|CF); #else /* * XXX I wonder why this partially ever worked. * * This can't possibly work this way, as we are copyin()ing data in * ul_putcmap. * * I guess this partially worked because SFC happened to point to * to supervisor data space on 68030 machines coming from the old * boot loader. * * While this looks more correct than the hack in the other part of the * loop, we would have to do our own version of the loop through * colormap entries, set up command buffer, and call gsp_write(), or * factor out some code. */ /* * XXX This version will work for the overlay, if our queue codes * initial conditions are set at load time (not start time). * It further assumes that ul_putcmap only uses the * GRFIMDEV/GRFOVDEV bits of the dev parameter. */ /* unflush cache, unhalt CPU first -> nmi starts to run */ ba->ctrl &= ~(HLT|CF); gcm.index = 0; gcm.count = 16; gcm.red = ul_std_palette + 0; gcm.green = ul_std_palette + 16; gcm.blue = ul_std_palette + 32; ul_putcmap(gp, &gcm, GRFIMDEV); gcm.index = 0; gcm.count = 4; gcm.red = ul_ovl_palette + 0; gcm.green = ul_ovl_palette + 4; gcm.blue = ul_ovl_palette + 8; ul_putcmap(gp, &gcm, GRFOVDEV); #endif } static int ul_load_mon(struct grf_softc *gp, struct grfvideo_mode *md) { struct grfinfo *gi; volatile struct gspregs *ba; u_int16_t buf[8]; gi = &gp->g_display; ba = (volatile struct gspregs *)gp->g_regkva; gi->gd_dyn.gdi_fbx = 0; gi->gd_dyn.gdi_fby = 0; gi->gd_dyn.gdi_dwidth = md->disp_width; gi->gd_dyn.gdi_dheight = md->disp_height; gi->gd_dyn.gdi_dx = 0; gi->gd_dyn.gdi_dy = 0; ba->ctrl = (ba->ctrl & ~INCR) | (LBL | INCW); /* XXX */ ba->hstadrh = 0xC000; ba->hstadrl = 0x0000; ba->data = (md->hsync_stop - md->hsync_start)/16; ba->data = (md->htotal - md->hsync_start)/16 - 1; ba->data = (md->hblank_start + md->htotal - md->hsync_start)/16 - 1; ba->data = md->htotal/16 - 1; ba->data = md->vsync_stop - md->vsync_start; ba->data = md->vtotal - md->vsync_start - 1; ba->data = md->vblank_start + md->vtotal - md->vsync_start - 1; ba->data = md->vtotal - 1; ba->ctrl &= ~INCW; ba->hstadrh = 0xFE90; ba->hstadrl = 0x0000; if (abs(md->pixel_clock - ulowell_clock[0]) > abs(md->pixel_clock - ulowell_clock[1])) { ba->data = (ba->data & 0xFC) | 2 | 1; md->pixel_clock = ulowell_clock[1]; } else { ba->data = (ba->data & 0xFC) | 2 | 0; md->pixel_clock = ulowell_clock[0]; } ba->ctrl |= LBL | INCW; ba->hstadrh = 0xC000; ba->hstadrl = 0x0080; ba->data = md->disp_flags & GRF_FLAGS_LACE ? 0xb020 : 0xf020; /* I guess this should be in the yet unimplemented mode select ioctl */ /* Hm.. maybe not. We always put the console on overlay plane no 0. */ /* Anyway, this _IS_ called in the mode select ioctl. */ /* ite support code parameters: */ buf[0] = GCMD_MCHG; buf[1] = md->disp_width; /* display width */ buf[2] = md->disp_height; /* display height */ buf[3] = 0; /* LSW of frame buffer origin */ buf[4] = 0xFF80; /* MSW of frame buffer origin */ buf[5] = gi->gd_fbwidth * 1; /* frame buffer pitch */ buf[6] = 1; /* frame buffer depth */ gsp_write(ba, buf, 7); return(1); } int ul_mode(struct grf_softc *, u_long, void *, u_long, int); void grfulattach(device_t, device_t, void *); int grfulprint(void *, const char *); int grfulmatch(device_t, cfdata_t, void *); CFATTACH_DECL_NEW(grful, sizeof(struct grf_ul_softc), grfulmatch, grfulattach, NULL, NULL); /* * only used in console init */ static struct cfdata *cfdata; /* * we make sure to only init things once. this is somewhat * tricky regarding the console. */ int grfulmatch(device_t parent, cfdata_t cf, void *aux) { #ifdef ULOWELLCONSOLE static int ulconunit = -1; #endif struct zbus_args *zap; zap = aux; /* * allow only one ulowell console */ if (amiga_realconfig == 0) #ifdef ULOWELLCONSOLE if (ulconunit != -1) #endif return(0); if (zap->manid != 1030 || zap->prodid != 0) return(0); #ifdef ULOWELLCONSOLE if (amiga_realconfig == 0 || ulconunit != cf->cf_unit) { #endif if ((unsigned)ulowell_default_mon > ulowell_mon_max) ulowell_default_mon = 1; current_mon = ul_monitor_defs + ulowell_default_mon - 1; if (ulowell_alive(current_mon) == 0) return(0); #ifdef ULOWELLCONSOLE if (amiga_realconfig == 0) { ulconunit = cf->cf_unit; cfdata = cf; } } #endif return(1); } /* * attach to the grfbus (zbus) */ void grfulattach(device_t parent, device_t self, void *aux) { static struct grf_ul_softc congrf; struct device temp; struct zbus_args *zap; struct grf_softc *gp; struct grf_ul_softc *gup; zap = aux; if (self == NULL) { gup = &congrf; gp = &gup->gus_sc; gp->g_device = &temp; temp.dv_private = gp; } else { gup = device_private(self); gp = &gup->gus_sc; gp->g_device = self; } if (self != NULL && congrf.gus_sc.g_regkva != 0) { /* * inited earlier, just copy (not device struct) */ memcpy(&gp->g_display, &congrf.gus_sc.g_display, (char *)&gup->gus_isr - (char *)&gp->g_display); /* ...and transfer the isr */ gup->gus_isr.isr_ipl = 2; gup->gus_isr.isr_intr = ulisr; gup->gus_isr.isr_arg = (void *)gp; /* * To make sure ints are always caught, first add new isr * then remove old: */ add_isr(&gup->gus_isr); remove_isr(&congrf.gus_isr); } else { gp->g_regkva = (void *)zap->va; gp->g_fbkva = NULL; gp->g_unit = GRF_ULOWELL_UNIT; gp->g_flags = GF_ALIVE; gp->g_mode = ul_mode; #if NITE > 0 gp->g_conpri = grful_cnprobe(); #endif gp->g_data = NULL; gup->gus_isr.isr_ipl = 2; gup->gus_isr.isr_intr = ulisr; gup->gus_isr.isr_arg = (void *)gp; add_isr(&gup->gus_isr); (void)ul_load_code(gp); (void)ul_load_mon(gp, current_mon); #if NITE > 0 grful_iteinit(gp); #endif } if (self != NULL) printf("\n"); /* * attach grf */ amiga_config_found(cfdata, gp->g_device, gp, grfulprint); } int grfulprint(void *aux, const char *pnp) { if (pnp) aprint_normal("grf%d at %s", ((struct grf_softc *)aux)->g_unit, pnp); return(UNCONF); } static int ul_getvmode (struct grf_softc *gp, struct grfvideo_mode *vm) { struct grfvideo_mode *md; if (vm->mode_num && vm->mode_num > ulowell_mon_max) return EINVAL; if (! vm->mode_num) vm->mode_num = current_mon - ul_monitor_defs + 1; md = ul_monitor_defs + vm->mode_num - 1; strncpy (vm->mode_descr, md->mode_descr, sizeof (vm->mode_descr)); /* XXX should tell TMS to measure it */ vm->pixel_clock = md->pixel_clock; vm->disp_width = md->disp_width; vm->disp_height = md->disp_height; vm->depth = md->depth; vm->hblank_start = md->hblank_start; vm->hsync_start = md->hsync_start; vm->hsync_stop = md->hsync_stop; vm->htotal = md->htotal; vm->vblank_start = md->vblank_start; vm->vsync_start = md->vsync_start; vm->vsync_stop = md->vsync_stop; vm->vtotal = md->vtotal; vm->disp_flags = md->disp_flags; return 0; } static int ul_setvmode (struct grf_softc *gp, unsigned mode) { int error; if (!mode || mode > ulowell_mon_max) return EINVAL; current_mon = ul_monitor_defs + mode - 1; error = ul_load_mon (gp, current_mon) ? 0 : EINVAL; return error; } /* * Set the frame buffer or overlay planes on or off. * Always succeeds. */ static inline void ul_setfb(struct grf_softc *gp, u_long cmd) { struct grf_ul_softc *gup; volatile struct gspregs *ba; gup = (struct grf_ul_softc *)gp; ba = (volatile struct gspregs *)gp->g_regkva; ba->ctrl = LBL; ba->hstadrh = 0xfe80; ba->hstadrl = 0x0000; ba->data = 6; ba->hstadrl = 0x0020; switch (cmd) { case GM_GRFON: gup->gus_ovslct |= 0x40; break; case GM_GRFOFF: gup->gus_ovslct &= ~0x40; break; case GM_GRFOVON: gup->gus_ovslct |= 3; break; case GM_GRFOVOFF: gup->gus_ovslct &= ~3; break; } ba->data = gup->gus_ovslct; } /* * Change the mode of the display. * Return a UNIX error number or 0 for success. */ int ul_mode(struct grf_softc *gp, u_long cmd, void *arg, u_long a2, int a3) { int i; struct grfdyninfo *gd; switch (cmd) { case GM_GRFON: case GM_GRFOFF: case GM_GRFOVON: case GM_GRFOVOFF: ul_setfb (gp, cmd); return 0; case GM_GRFCONFIG: gd = (struct grfdyninfo *)arg; for (i=0; igdi_dwidth && ul_monitor_defs[i].disp_height == gd->gdi_dheight) return ul_setvmode(gp, i+1); } return EINVAL; case GM_GRFGETVMODE: return ul_getvmode (gp, (struct grfvideo_mode *) arg); case GM_GRFSETVMODE: return ul_setvmode (gp, *(unsigned *) arg); case GM_GRFGETNUMVM: *(int *)arg = ulowell_mon_max; return 0; case GM_GRFIOCTL: return ul_ioctl (gp, a2, arg, (dev_t)a3); default: break; } return EPASSTHROUGH; } int ul_ioctl (register struct grf_softc *gp, u_long cmd, void *data, dev_t dev) { switch (cmd) { #if 0 /* * XXX we have no hardware sprites, but might implement them * later in TMS code. */ case GRFIOCGSPRITEPOS: return ul_getspritepos (gp, (struct grf_position *) data); case GRFIOCSSPRITEPOS: return ul_setspritepos (gp, (struct grf_position *) data); case GRFIOCSSPRITEINF: return ul_setspriteinfo (gp, (struct grf_spriteinfo *) data); case GRFIOCGSPRITEINF: return ul_getspriteinfo (gp, (struct grf_spriteinfo *) data); case GRFIOCGSPRITEMAX: return ul_getspritemax (gp, (struct grf_position *) data); #endif case GRFIOCGETCMAP: return ul_getcmap (gp, (struct grf_colormap *) data, dev); case GRFIOCPUTCMAP: return ul_putcmap (gp, (struct grf_colormap *) data, dev); case GRFIOCBITBLT: return ul_bitblt (gp, (struct grf_bitblt *) data, dev); case GRFIOCBLANK: return ul_blank (gp, (int *) data, dev); } return EPASSTHROUGH; } int ul_getcmap (struct grf_softc *gp, struct grf_colormap *cmap, dev_t dev) { struct grf_ul_softc *gup; u_int8_t *mymap; int mxidx, error; gup = (struct grf_ul_softc *)gp; if (minor(dev) & GRFIMDEV) { mxidx = 256; mymap = gup->gus_imcmap; } else { mxidx = 4; mymap = gup->gus_ovcmap; } if (cmap->count == 0 || cmap->index >= mxidx) return 0; if (cmap->count > mxidx - cmap->index) cmap->count = mxidx - cmap->index; /* just copyout from the shadow color map */ if ((error = copyout(mymap + cmap->index, cmap->red, cmap->count)) || (error = copyout(mymap + mxidx + cmap->index, cmap->green, cmap->count)) || (error = copyout(mymap + mxidx * 2 + cmap->index, cmap->blue, cmap->count))) return(error); return(0); } int ul_putcmap (struct grf_softc *gp, struct grf_colormap *cmap, dev_t dev) { struct grf_ul_softc *gup; volatile struct gspregs *ba; u_int16_t cmd[8]; int x, mxidx, error; u_int8_t *mymap; gup = (struct grf_ul_softc *)gp; if (minor(dev) & GRFIMDEV) { mxidx = 256; mymap = gup->gus_imcmap; } else { mxidx = 4; mymap = gup->gus_ovcmap; } if (cmap->count == 0 || cmap->index >= mxidx) return 0; if (cmap->count > mxidx - cmap->index) cmap->count = mxidx - cmap->index; /* first copyin to our shadow color map */ if ((error = copyin(cmap->red, mymap + cmap->index, cmap->count)) || (error = copyin(cmap->green, mymap + cmap->index + mxidx, cmap->count)) || (error = copyin(cmap->blue, mymap + cmap->index + mxidx*2, cmap->count))) return error; /* then write from there to the hardware */ ba = (volatile struct gspregs *)gp->g_regkva; /* * XXX This is a bad thing to do. * We should always use the gsp call, or have a means to arbitrate * the usage of the BT458 index register. Else there might be a * race condition (when writing both colormaps at nearly the same * time), where one CPU changes the index register when the other * one has not finished using it. */ if (mxidx > 4) { /* image color map: we can write, with a hack, directly */ ba->ctrl = LBL; ba->hstadrh = 0xfe80; ba->hstadrl = 0x0000; ba->ctrl |= INCW; ba->data = cmap->index; ba->ctrl &= ~INCW; for (x=cmap->index; x < cmap->index + cmap->count; ++x) { ba->data = (u_int16_t) mymap[x]; ba->data = (u_int16_t) mymap[x + mxidx]; ba->data = (u_int16_t) mymap[x + mxidx * 2]; } } else { /* overlay planes color map: have to call tms to do it */ cmd[0] = GCMD_CMAP; cmd[1] = 1; for (x=cmap->index; x < cmap->index + cmap->count; ++x) { cmd[2] = x; cmd[3] = mymap[x]; cmd[4] = mymap[x + mxidx]; cmd[5] = mymap[x + mxidx * 2]; gsp_write(ba, cmd, 6); } } return 0; } int ul_blank(struct grf_softc *gp, int *onoff, dev_t dev) { volatile struct gspregs *gsp; gsp = (volatile struct gspregs *)gp->g_regkva; gsp->ctrl = (gsp->ctrl & ~(INCR | INCW)) | LBL; gsp->hstadrh = 0xC000; gsp->hstadrl = 0x0080; if (*onoff > 0) gsp->data |= 0x9000; else gsp->data &= ~0x9000; return 0; } /* * !!! THIS AREA UNDER CONSTRUCTION !!! */ int ul_BltOpMap[16] = { 3, 1, 2, 0, 11, 9, 10, 8, 7, 5, 6, 4, 15, 13, 14, 12 }; int ul_bitblt (struct grf_softc *gp, struct grf_bitblt *bb, dev_t dev) { /* XXX not yet implemented, but pretty trivial */ return EPASSTHROUGH; } void gsp_write(volatile struct gspregs *gsp, u_short *ptr, size_t size) { u_short put, new_put, next, oc; u_long put_hi, oa; size_t n; if (size == 0 || size > 8) return; n = size; oc = gsp->ctrl; oa = GSPGETHADRS(gsp); gsp->ctrl = (oc & ~INCR) | LBL | INCW; GSPSETHADRS(gsp, GSP_MODE_ADRS); gsp->data &= ~GMODE_FLUSH; GSPSETHADRS(gsp, PUT_HI_PTR_ADRS); put_hi = gsp->data << 16; GSPSETHADRS(gsp, PUT_PTR_ADRS); put = gsp->data; new_put = put + (8<<4); GSPSETHADRS(gsp, GET_PTR_ADRS); next = gsp->data; while (next == new_put) { /* * we should use an intr. here. unfortunately, we already * are called from an interrupt and can't use tsleep. * so we do busy waiting, at least for the moment. */ GSPSETHADRS(gsp,GET_PTR_ADRS); next = gsp->data; } GSPSETHADRS(gsp,put|put_hi); gsp->data = *ptr++ | 8<<4; while ( --n > 0) { gsp->data = *ptr++; } GSPSETHADRS(gsp,PUT_PTR_ADRS); gsp->data = new_put; GSPSETHADRS(gsp,oa); gsp->ctrl = oc; return; } #endif /* NGRF */