diff options
Diffstat (limited to 'nx-X11/programs/Xserver/hw/sunLynx/sunLyUtil.c')
| -rw-r--r-- | nx-X11/programs/Xserver/hw/sunLynx/sunLyUtil.c | 509 |
1 files changed, 0 insertions, 509 deletions
diff --git a/nx-X11/programs/Xserver/hw/sunLynx/sunLyUtil.c b/nx-X11/programs/Xserver/hw/sunLynx/sunLyUtil.c deleted file mode 100644 index e260acfee..000000000 --- a/nx-X11/programs/Xserver/hw/sunLynx/sunLyUtil.c +++ /dev/null @@ -1,509 +0,0 @@ -/* $Xorg: sunLyUtil.c,v 1.3 2000/08/17 19:48:37 cpqbld Exp $ */ -/* - * CG3 and CG6 utility functions for LynxOS, derived from NetBSD - * Copyright 1996 by Thomas Mueller - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation, and that the name of Thomas Mueller not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. Thomas Mueller makes no representations - * about the suitability of this software for any purpose. It is provided - * "as is" without express or implied warranty. - * - * THOMAS MUELLER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL THOMAS MUELLER BE LIABLE FOR ANY SPECIAL, INDIRECT OR - * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, - * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER - * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. - * - */ -/* $XFree86: xc/programs/Xserver/hw/sunLynx/sunLyUtil.c,v 3.1 1996/12/27 06:51:42 dawes Exp $ */ - -/* $NetBSD: bt_subr.c,v 1.4 1994/11/20 20:51:54 deraadt Exp $ */ - -/* - * Copyright (c) 1993 - * The Regents of the University of California. All rights reserved. - * - * This software was developed by the Computer Systems Engineering group - * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and - * contributed to Berkeley. - * - * All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Lawrence Berkeley Laboratory. - * - * 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 the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. - * - * @(#)bt_subr.c 8.2 (Berkeley) 1/21/94 - */ - -/* adaption for LynxOS microSPARC 2.4.0 and X11R6[.1] - * Copyright 1996 by Thomas Mueller <tm@systrix.de> - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation, and that the name of Thomas Mueller not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. Thomas Mueller makes no representations - * about the suitability of this software for any purpose. It is provided - * "as is" without express or implied warranty. - * - * THOMAS MUELLER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL THOMAS MUELLER BE LIABLE FOR ANY SPECIAL, INDIRECT OR - * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, - * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER - * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. - * - */ - -#include "sun.h" -#include "btreg.h" -#include "btvar.h" -#include "cgsixreg.h" -#define useracc(a,b,c) (1) - -/* - * Common code for dealing with Brooktree video DACs. - * (Contains some software-only code as well, since the colormap - * ioctls are shared between the cgthree and cgsix drivers.) - */ - -/* - * Implement an FBIOGETCMAP-like ioctl. - */ -int -bt_getcmap(struct fbcmap *p, union bt_cmap *cm, int cmsize) -{ - u_int i; - u_int start; - u_int count; - u_char *cp; - - start = p->index; - count = p->count; - if (start >= cmsize || start + count > cmsize) - return (EINVAL); - if (!useracc(p->red, count, B_WRITE) || - !useracc(p->green, count, B_WRITE) || - !useracc(p->blue, count, B_WRITE)) - return (EFAULT); - for (cp = &cm->cm_map[start][0], i = 0; i < count; cp += 3, i++) { - p->red[i] = cp[0]; - p->green[i] = cp[1]; - p->blue[i] = cp[2]; - } - return (0); -} - -/* - * Implement the software portion of an FBIOPUTCMAP-like ioctl. - */ -int -bt_putcmap(struct fbcmap *p, union bt_cmap *cm, int cmsize) -{ - u_int i; - int start; - int count; - u_char *cp; - - start = p->index; - count = p->count; - if (start >= cmsize || start + count > cmsize) - return (EINVAL); - if (!useracc(p->red, count, B_READ) || - !useracc(p->green, count, B_READ) || - !useracc(p->blue, count, B_READ)) - return (EFAULT); - for (cp = &cm->cm_map[start][0], i = 0; i < count; cp += 3, i++) { - cp[0] = p->red[i]; - cp[1] = p->green[i]; - cp[2] = p->blue[i]; - } - return (0); -} - -union cursor_cmap { /* colormap, like bt_cmap, but tiny */ - u_char cm_map[2][3]; /* 2 R/G/B entries */ - u_int cm_chip[2]; /* 2 chip equivalents */ -}; - -struct cg6_cursor { /* cg6 hardware cursor status */ - short cc_enable; /* cursor is enabled */ - struct fbcurpos cc_pos; /* position */ - struct fbcurpos cc_hot; /* hot-spot */ - struct fbcurpos cc_size; /* size of mask & image fields */ - u_int cc_bits[2][32]; /* space for mask & image bits */ - union cursor_cmap cc_color; /* cursor colormap */ -}; - -static union bt_cmap sc_cmap; /* local copy of LUT */ -static int blanked = 1; /* to jump-start it ... */ -static struct cg6_cursor sc_cursor; /* cursor info */ - -/* - * Clean up hardware state (e.g., after bootup or after X crashes). - */ -static void -cg6_reset(fbFd * fb) -{ - volatile struct cg6_tec_xxx *tec; - int fhc; - short fhcrev; - volatile struct bt_regs *bt; - - /* hide the cursor, just in case */ - ((volatile struct cg6_thc *) (fb->thc))->thc_cursxy = - (THC_CURSOFF << 16) | THC_CURSOFF; - - /* turn off frobs in transform engine (makes X11 work) */ - tec = fb->tec; - tec->tec_mv = 0; - tec->tec_clip = 0; - tec->tec_vdc = 0; - - /* take care of hardware bugs in old revisions */ - fhcrev = (*(int *) fb->fhc >> FHC_REV_SHIFT) & - (FHC_REV_MASK >> FHC_REV_SHIFT); - if (fhcrev < 5) { - /* - * Keep current resolution; set cpu to 68020, set test - * window (size 1Kx1K), and for rev 1, disable dest cache. - */ - fhc = (*(int *) fb->fhc & FHC_RES_MASK) | FHC_CPU_68020 | - FHC_TEST | - (11 << FHC_TESTX_SHIFT) | (11 << FHC_TESTY_SHIFT); - if (fhcrev < 2) - fhc |= FHC_DST_DISABLE; - *(int *) fb->fhc = fhc; - } - /* Enable cursor in Brooktree DAC. */ - bt = fb->ramdac; - bt->bt_addr = 0x06 << 24; - bt->bt_ctrl |= 0x03 << 24; -} - -static void -cg6_loadcursor(fbFd * fb) -{ - volatile struct cg6_thc *thc; - u_int edgemask; - u_int m; - int i; - - /* - * Keep the top size.x bits. Here we *throw out* the top - * size.x bits from an all-one-bits word, introducing zeros in - * the top size.x bits, then invert all the bits to get what - * we really wanted as our mask. But this fails if size.x is - * 32---a sparc uses only the low 5 bits of the shift count--- - * so we have to special case that. - */ - edgemask = ~0; - if (sc_cursor.cc_size.x < 32) - edgemask = ~(edgemask >> sc_cursor.cc_size.x); - thc = (volatile struct cg6_thc *) fb->thc; - for (i = 0; i < 32; i++) { - m = sc_cursor.cc_bits[0][i] & edgemask; - thc->thc_cursmask[i] = m; - thc->thc_cursbits[i] = m & sc_cursor.cc_bits[1][i]; - } -} - -static void -cg6_setcursor(fbFd * fb) -{ - /* we need to subtract the hot-spot value here */ -#define COORD(f) (sc_cursor.cc_pos.f - sc_cursor.cc_hot.f) - ((volatile struct cg6_thc *) (fb->thc))->thc_cursxy = sc_cursor.cc_enable ? - ((COORD(x) << 16) | (COORD(y) & 0xffff)) : - (THC_CURSOFF << 16) | THC_CURSOFF; -#undef COORD -} - -/* - * Load the cursor (overlay `foreground' and `background') colors. - */ -static void -cg6_loadomap(fbFd * fb) -{ - volatile struct bt_regs *bt; - u_int i; - - bt = (volatile struct bt_regs *) fb->ramdac; - bt->bt_addr = 0x01 << 24; /* set background color */ - i = sc_cursor.cc_color.cm_chip[0]; - bt->bt_omap = i; /* R */ - bt->bt_omap = i << 8; /* G */ - bt->bt_omap = i << 16; /* B */ - - bt->bt_addr = 0x03 << 24; /* set foreground color */ - bt->bt_omap = i << 24; /* R */ - i = sc_cursor.cc_color.cm_chip[1]; - bt->bt_omap = i; /* G */ - bt->bt_omap = i << 8; /* B */ -} - -/* - * Load a subset of the current (new) colormap into the color DAC. - */ -static void -cg6_loadcmap(fbFd * fb, union bt_cmap *cm, int start, int ncolors) -{ - volatile struct bt_regs *bt; - u_int *ip; - u_int i; - int count; - - ip = &cm->cm_chip[BT_D4M3(start)]; /* start/4 * 3 */ - count = BT_D4M3(start + ncolors - 1) - BT_D4M3(start) + 3; - bt = (struct bt_regs *) fb->ramdac; - bt->bt_addr = BT_D4M4(start) << 24; - while (--count >= 0) { - i = *ip++; - /* hardware that makes one want to pound boards with hammers */ - bt->bt_cmap = i; - bt->bt_cmap = i << 8; - bt->bt_cmap = i << 16; - bt->bt_cmap = i << 24; - } -} - -/* - * Undo the effect of an FBIOSVIDEO that turns the video off on a CG6 - */ -static void -cg6_unblank(fbFd * dev) -{ - volatile struct cg6_thc *thc = (volatile struct cg6_thc *) dev->thc; - unsigned long x; - unsigned long y; - - if (blanked) { - thc->thc_misc = (thc->thc_misc & ~THC_MISC_VIDEN) | THC_MISC_VIDEN; - } - blanked = 0; -} - -/* - * Load a subset of the current (new) colormap into the Brooktree DAC. - */ -static void -cg3_loadcmap(fbFd * fb, union bt_cmap *cm, int start, int ncolors) -{ - volatile struct bt_regs *bt; - u_int *ip; - int count; - - ip = &cm->cm_chip[BT_D4M3(start)]; /* start/4 * 3 */ - count = BT_D4M3(start + ncolors - 1) - BT_D4M3(start) + 3; - bt = (struct bt_regs *) fb->ramdac; - bt->bt_addr = BT_D4M4(start); - while (--count >= 0) - bt->bt_cmap = *ip++; -} - -/* - * Undo the effect of an FBIOSVIDEO that turns the video off on a CG3 - */ -static void -cg3_unblank(fbFd * dev) -{ - volatile struct bt_regs *bt; - - if (blanked) { - bt = (struct bt_regs *) dev->ramdac; - /* restore color 0 (and R of color 1) */ - bt->bt_addr = 0; - bt->bt_cmap = sc_cmap.cm_chip[0]; - - /* restore read mask */ - bt->bt_addr = 0x06; /* command reg */ - bt->bt_ctrl = 0x73; /* overlay plane */ - bt->bt_addr = 0x04; /* read mask */ - bt->bt_ctrl = 0xff; /* color planes */ - } - blanked = 0; -} - -int -sunIoctl(fbFd * fb, int cmd, void *arg) -{ - int error; - int v; - int i; - u_int count; - union cursor_cmap tcm; - - switch (cmd) { - default: - errno = EINVAL; - return -1; - case FBIOPUTCMAP: -#define q ((struct fbcmap *)arg) - if (error = bt_putcmap(q, &sc_cmap, 256)) - return error; - if (fb->thc) { /* CG6 */ - cg6_loadcmap(fb, &sc_cmap, q->index, q->count); - } else { /* CG3 */ - cg3_loadcmap(fb, &sc_cmap, q->index, q->count); - } - break; - case FBIOSVIDEO: - if (fb->thc) { /* CG6 */ - if (*(int *) arg) - cg6_unblank(fb); - else { - if (!blanked) { - volatile struct cg6_thc *thc = - (volatile struct cg6_thc *) fb->thc; - - thc->thc_misc = (thc->thc_misc & ~THC_MISC_VIDEN); - } - blanked = 1; - } - } else { /* CG3 */ - if (*(int *) arg) - cg3_unblank(fb); - else { - if (!blanked) { - volatile struct bt_regs *bt; - - bt = (struct bt_regs *) fb->ramdac; - bt->bt_addr = 0x06; /* command reg */ - bt->bt_ctrl = 0x70; /* overlay plane */ - bt->bt_addr = 0x04; /* read mask */ - bt->bt_ctrl = 0x00; /* color planes */ - - /* - * Set color 0 to black -- note that this overwrites R of - * color 1. - */ - bt->bt_addr = 0; - bt->bt_cmap = 0; - - } - blanked = 1; - } - } - break; -/* these are for both FBIOSCURSOR and FBIOGCURSOR */ -#define p ((struct fbcursor *)arg) -#define cc (&sc_cursor) - - case FBIOSCURSOR: - if (!fb->thc) { /* reject non CG6 */ - errno = EINVAL; - return -1; - } - /* - * For setcmap and setshape, verify parameters, so that - * we do not get halfway through an update and then crap - * out with the software state screwed up. - */ - v = p->set; - if (v & FB_CUR_SETCMAP) { - /* - * This use of a temporary copy of the cursor - * colormap is not terribly efficient, but these - * copies are small (8 bytes)... - */ - tcm = cc->cc_color; - error = bt_putcmap(&p->cmap, (union bt_cmap *) &tcm, 2); - if (error) - return (error); - } - if (v & FB_CUR_SETSHAPE) { - if ((u_int) p->size.x > 32 || (u_int) p->size.y > 32) - return (EINVAL); - count = p->size.y * 32 / NBBY; - if (!useracc(p->image, count, B_READ) || - !useracc(p->mask, count, B_READ)) - return (EFAULT); - } - /* parameters are OK; do it */ - if (v & (FB_CUR_SETCUR | FB_CUR_SETPOS | FB_CUR_SETHOT)) { - if (v & FB_CUR_SETCUR) - cc->cc_enable = p->enable; - if (v & FB_CUR_SETPOS) - cc->cc_pos = p->pos; - if (v & FB_CUR_SETHOT) - cc->cc_hot = p->hot; - cg6_setcursor(fb); - } - if (v & FB_CUR_SETCMAP) { - cc->cc_color = tcm; - cg6_loadomap(fb); /* XXX defer to vertical retrace */ - } - if (v & FB_CUR_SETSHAPE) { - cc->cc_size = p->size; - count = p->size.y * 32 / NBBY; - bzero((caddr_t) cc->cc_bits, sizeof cc->cc_bits); - bcopy(p->mask, (caddr_t) cc->cc_bits[0], count); - bcopy(p->image, (caddr_t) cc->cc_bits[1], count); - cg6_loadcursor(fb); - } - break; - case FBIOSCURPOS: - if (!fb->thc) { /* reject non CG6 */ - errno = EINVAL; - return -1; - } - sc_cursor.cc_pos = *(struct fbcurpos *) arg; - cg6_setcursor(fb); - break; - - case FBIOGCURMAX: - if (!fb->thc) { /* reject non CG6 */ - errno = EINVAL; - return -1; - } - /* max cursor size is 32x32 */ - ((struct fbcurpos *) arg)->x = 32; - ((struct fbcurpos *) arg)->y = 32; - break; - case FBIORESET: - if (!fb->thc) { /* reject non CG6 */ - errno = EINVAL; - return -1; - } - cg6_reset(fb); - } - return 0; -} |