from torek:
new brooktree dac code hacked cgthree code new cgsix (ala GX) code
This commit is contained in:
deraadt
parent
a06a8e88ff
commit
c9f2e616f8
116
sys/arch/sparc/dev/bt_subr.c
Normal file
116
sys/arch/sparc/dev/bt_subr.c
Normal file
@ -0,0 +1,116 @@
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/*
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* Copyright (c) 1993 The Regents of the University of California.
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* All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
|
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* This product includes software developed by the University of
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* California, Lawrence Berkeley Laboratory.
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*
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* Redistribution and use in source and binary forms, with or without
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* 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
|
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* 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
|
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
|
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* without specific prior written permission.
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||||
*
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||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
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* 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
|
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* %W% (Berkeley) %G%
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*
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* from: Header: bt_subr.c,v 1.1 93/10/12 15:28:39 torek Exp
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* $Id: bt_subr.c,v 1.1 1993/11/11 03:36:48 deraadt Exp $
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*/
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#include <sys/param.h>
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#include <sys/buf.h>
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#include <sys/errno.h>
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#include <sys/fbio.h>
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#include <sparc/sbus/btreg.h>
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#include <sparc/sbus/btvar.h>
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/*
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* Common code for dealing with Brooktree video DACs.
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* (Contains some software-only code as well, since the colormap
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* ioctls are shared between the cgthree and cgsix drivers.)
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*/
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/*
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* Implement an FBIOGETCMAP-like ioctl.
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*/
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int
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bt_getcmap(p, cm, cmsize)
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register struct fbcmap *p;
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union bt_cmap *cm;
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int cmsize;
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{
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register u_int i, start, count;
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register u_char *cp;
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start = p->index;
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count = p->count;
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if (start >= cmsize || start + count > cmsize)
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return (EINVAL);
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if (!useracc(p->red, count, B_WRITE) ||
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!useracc(p->green, count, B_WRITE) ||
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!useracc(p->blue, count, B_WRITE))
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return (EFAULT);
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for (cp = &cm->cm_map[start][0], i = 0; i < count; cp += 3, i++) {
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p->red[i] = cp[0];
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p->green[i] = cp[1];
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p->blue[i] = cp[2];
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}
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return (0);
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}
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/*
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* Implement the software portion of an FBIOPUTCMAP-like ioctl.
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*/
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int
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bt_putcmap(p, cm, cmsize)
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register struct fbcmap *p;
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union bt_cmap *cm;
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int cmsize;
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{
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register u_int i, start, count;
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register u_char *cp;
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start = p->index;
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count = p->count;
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if (start >= cmsize || start + count > cmsize)
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return (EINVAL);
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if (!useracc(p->red, count, B_READ) ||
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!useracc(p->green, count, B_READ) ||
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!useracc(p->blue, count, B_READ))
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return (EFAULT);
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for (cp = &cm->cm_map[start][0], i = 0; i < count; cp += 3, i++) {
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cp[0] = p->red[i];
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cp[1] = p->green[i];
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cp[2] = p->blue[i];
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}
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return (0);
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}
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81
sys/arch/sparc/dev/btreg.h
Normal file
81
sys/arch/sparc/dev/btreg.h
Normal file
@ -0,0 +1,81 @@
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/*
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* Copyright (c) 1993 The Regents of the University of California.
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* All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
|
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* This product includes software developed by the University of
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* California, Lawrence Berkeley Laboratory.
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*
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* Redistribution and use in source and binary forms, with or without
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* 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.
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* 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
|
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
|
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* %W% (Berkeley) %G%
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*
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* from: Header: btreg.h,v 1.1 93/10/12 15:28:52 torek Exp
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* $Id: btreg.h,v 1.1 1993/11/11 03:36:50 deraadt Exp $
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*/
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/*
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* Several Sun color frame buffers use some kind of Brooktree video
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* DAC (e.g., the Bt458, -- in any case, Brooktree make the only
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* decent color frame buffer chips).
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*
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* Color map control on these is a bit funky in a SPARCstation.
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* To update the color map one would normally do byte writes, but
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* the hardware takes longword writes. Since there are three
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* registers for each color map entry (R, then G, then B), we have
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* to set color 1 with a write to address 0 (setting 0's R/G/B and
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* color 1's R) followed by a second write to address 1 (setting
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* color 1's G/B and color 2's R/G). Software must therefore keep
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* a copy of the current map.
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*
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* The colormap address register increments automatically, so the
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* above write is done as:
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*
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* bt->bt_addr = 0;
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* bt->bt_cmap = R0G0B0R1;
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* bt->bt_cmap = G1B1R2G2;
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* ...
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*
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* Yow!
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*
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* Bonus complication: on the cg6, only the top 8 bits of each 32 bit
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* register matter, even though the cg3 takes all the bits from all
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* bytes written to it.
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*/
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struct bt_regs {
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u_int bt_addr; /* map address register */
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u_int bt_cmap; /* colormap data register */
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u_int bt_ctrl; /* control register */
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u_int bt_omap; /* overlay (cursor) map register */
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};
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74
sys/arch/sparc/dev/btvar.h
Normal file
74
sys/arch/sparc/dev/btvar.h
Normal file
@ -0,0 +1,74 @@
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/*
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* Copyright (c) 1993 The Regents of the University of California.
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* All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
|
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
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* California, Lawrence Berkeley Laboratory.
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*
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* 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
|
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* California, Berkeley and its contributors.
|
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* 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.
|
||||
*
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||||
* 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
|
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* 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)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* %W% (Berkeley) %G%
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*
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* from: Header: btvar.h,v 1.1 93/10/12 15:29:01 torek Exp
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* $Id: btvar.h,v 1.1 1993/11/11 03:36:51 deraadt Exp $
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*/
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/*
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* Brooktree color frame buffer state variables (see btreg.h).
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*
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* Unfortunately, remarkably little code can be shared between the
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* cg3 and cg6 drivers here, as the cg3 registers do longword-ops
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* `as expected', but the cg6 ones use only the upper byte.
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*
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* Still, the software color map manipulation is not completely trivial.
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*/
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union bt_cmap {
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u_char cm_map[256][3]; /* 256 R/G/B entries */
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u_int cm_chip[256 * 3 / 4]; /* the way the chip gets loaded */
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};
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/*
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* Routines in bt_subr.c.
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*/
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int bt_getcmap __P((struct fbcmap *, union bt_cmap *, int));
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int bt_putcmap __P((struct fbcmap *, union bt_cmap *, int));
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/*
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* Compute (x / 4) * 3 and (x / 4) * 4. These are used in turning
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* RGB indices (which are in multiples of three) into `chip RGB' values
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* (which are in multiples of four).
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*/
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#define BT_D4M3(x) ((((x) >> 2) << 1) + ((x) >> 2)) /* (x / 4) * 3 */
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#define BT_D4M4(x) ((x) & ~3) /* (x / 4) * 4 */
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561
sys/arch/sparc/dev/cgsix.c
Normal file
561
sys/arch/sparc/dev/cgsix.c
Normal file
@ -0,0 +1,561 @@
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/*
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* Copyright (c) 1993 The Regents of the University of California.
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* All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* 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
|
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* SUCH DAMAGE.
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*
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* %W% (Berkeley) %G%
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*
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* from: Header: cgsix.c,v 1.2 93/10/18 00:01:51 torek Exp
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* $Id: cgsix.c,v 1.1 1993/11/11 03:36:52 deraadt Exp $
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*/
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/*
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* color display (cgsix) driver.
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*
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* Does not handle interrupts, even though they can occur.
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*
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* XXX should defer colormap updates to vertical retrace interrupts
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*/
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#include <sys/param.h>
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#include <sys/buf.h>
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#include <sys/device.h>
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#include <sys/fbio.h>
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#include <sys/ioctl.h>
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#include <sys/malloc.h>
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#include <sys/mman.h>
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#include <sys/tty.h>
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#ifdef DEBUG
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#include <sys/proc.h>
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#include <sys/syslog.h>
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#endif
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#include <machine/autoconf.h>
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#include <machine/pmap.h>
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#include <machine/fbvar.h>
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#include <sparc/sbus/btreg.h>
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#include <sparc/sbus/btvar.h>
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#include <sparc/sbus/cgsixreg.h>
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#include <sparc/sbus/sbusvar.h>
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union cursor_cmap { /* colormap, like bt_cmap, but tiny */
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u_char cm_map[2][3]; /* 2 R/G/B entries */
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u_int cm_chip[2]; /* 2 chip equivalents */
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};
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struct cg6_cursor { /* cg6 hardware cursor status */
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short cc_enable; /* cursor is enabled */
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struct fbcurpos cc_pos; /* position */
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struct fbcurpos cc_hot; /* hot-spot */
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struct fbcurpos cc_size; /* size of mask & image fields */
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u_int cc_bits[2][32]; /* space for mask & image bits */
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union cursor_cmap cc_color; /* cursor colormap */
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};
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/* per-display variables */
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struct cgsix_softc {
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struct device sc_dev; /* base device */
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struct sbusdev sc_sd; /* sbus device */
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struct fbdevice sc_fb; /* frame buffer device */
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volatile struct cg6_layout *sc_physadr; /* phys addr of h/w */
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volatile struct bt_regs *sc_bt; /* Brooktree registers */
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volatile struct cg6_thc *sc_thc; /* THC registers */
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int sc_blanked; /* true if blanked */
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struct cg6_cursor sc_cursor; /* software cursor info */
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union bt_cmap sc_cmap; /* Brooktree color map */
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};
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/* autoconfiguration driver */
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static void cgsixattach(struct device *, struct device *, void *);
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struct cfdriver cgsixcd =
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{ NULL, "cgsix", matchbyname, cgsixattach,
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DV_DULL, sizeof(struct cgsix_softc) };
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/* frame buffer generic driver */
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static void cg6_unblank(struct device *);
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static struct fbdriver cg6_fbdriver = { cg6_unblank };
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/*
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* Unlike the bw2 and cg3 drivers, we do not need to provide an rconsole
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* interface, as the cg6 is fast enough.
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*/
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extern int fbnode;
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#define CGSIX_MAJOR 67 /* XXX */
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static void cg6_loadcmap __P((struct cgsix_softc *, int, int));
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static void cg6_loadomap __P((struct cgsix_softc *));
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static void cg6_setcursor __P((struct cgsix_softc *));/* set position */
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static void cg6_loadcursor __P((struct cgsix_softc *));/* set shape */
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/*
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* Attach a display.
|
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*/
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void
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cgsixattach(parent, self, args)
|
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struct device *parent, *self;
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void *args;
|
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{
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register struct cgsix_softc *sc = (struct cgsix_softc *)self;
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register struct sbus_attach_args *sa = args;
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register int node = sa->sa_ra.ra_node, ramsize, i;
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register volatile struct bt_regs *bt;
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register volatile struct cg6_layout *p;
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sc->sc_fb.fb_major = CGSIX_MAJOR; /* XXX to be removed */
|
||||
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sc->sc_fb.fb_driver = &cg6_fbdriver;
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sc->sc_fb.fb_device = &sc->sc_dev;
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sc->sc_fb.fb_type.fb_type = FBTYPE_SUNFAST_COLOR;
|
||||
sc->sc_fb.fb_type.fb_width = getpropint(node, "width", 1152);
|
||||
sc->sc_fb.fb_type.fb_height = getpropint(node, "height", 900);
|
||||
sc->sc_fb.fb_linebytes = getpropint(node, "linebytes", 1152);
|
||||
ramsize = sc->sc_fb.fb_type.fb_height * sc->sc_fb.fb_linebytes;
|
||||
sc->sc_fb.fb_type.fb_depth = 8;
|
||||
sc->sc_fb.fb_type.fb_cmsize = 256;
|
||||
sc->sc_fb.fb_type.fb_size = ramsize;
|
||||
printf(": %s, %d x %d", getpropstring(node, "model"),
|
||||
sc->sc_fb.fb_type.fb_width, sc->sc_fb.fb_type.fb_height);
|
||||
|
||||
/*
|
||||
* Dunno what the PROM has mapped, though obviously it must have
|
||||
* the video RAM mapped. Just map what we care about for ourselves
|
||||
* (the THC and Brooktree registers).
|
||||
*/
|
||||
sc->sc_physadr = p = (struct cg6_layout *)sa->sa_ra.ra_paddr;
|
||||
sc->sc_bt = bt = (volatile struct bt_regs *)
|
||||
mapiodev((caddr_t)&p->cg6_bt_un.un_btregs, sizeof(struct bt_regs));
|
||||
sc->sc_thc = (volatile struct cg6_thc *)
|
||||
mapiodev((caddr_t)&p->cg6_thc_un.un_thc, sizeof(struct cg6_thc));
|
||||
|
||||
/* grab initial (current) color map (DOES THIS WORK?) */
|
||||
bt->bt_addr = 0;
|
||||
for (i = 0; i < 256 * 3; i++)
|
||||
((char *)&sc->sc_cmap)[i] = bt->bt_cmap >> 24;
|
||||
|
||||
/* enable video */
|
||||
sc->sc_thc->thc_misc |= THC_MISC_VIDEN;
|
||||
|
||||
printf("\n");
|
||||
sbus_establish(&sc->sc_sd, &sc->sc_dev);
|
||||
if (node == fbnode)
|
||||
fb_attach(&sc->sc_fb);
|
||||
}
|
||||
|
||||
int
|
||||
cgsixopen(dev, flags, mode, p)
|
||||
dev_t dev;
|
||||
int flags, mode;
|
||||
struct proc *p;
|
||||
{
|
||||
int unit = minor(dev);
|
||||
|
||||
if (unit >= cgsixcd.cd_ndevs || cgsixcd.cd_devs[unit] == NULL)
|
||||
return (ENXIO);
|
||||
return (0);
|
||||
}
|
||||
|
||||
int
|
||||
cgsixclose(dev, flags, mode, p)
|
||||
dev_t dev;
|
||||
int flags, mode;
|
||||
struct proc *p;
|
||||
{
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
int
|
||||
cgsixioctl(dev, cmd, data, flags, p)
|
||||
dev_t dev;
|
||||
int cmd;
|
||||
register caddr_t data;
|
||||
int flags;
|
||||
struct proc *p;
|
||||
{
|
||||
register struct cgsix_softc *sc = cgsixcd.cd_devs[minor(dev)];
|
||||
u_int count;
|
||||
int i, v, error;
|
||||
union cursor_cmap tcm;
|
||||
|
||||
switch (cmd) {
|
||||
|
||||
case FBIOGTYPE:
|
||||
*(struct fbtype *)data = sc->sc_fb.fb_type;
|
||||
break;
|
||||
|
||||
case FBIOGATTR:
|
||||
#define fba ((struct fbgattr *)data)
|
||||
fba->real_type = sc->sc_fb.fb_type.fb_type;
|
||||
fba->owner = 0; /* XXX ??? */
|
||||
fba->fbtype = sc->sc_fb.fb_type;
|
||||
fba->sattr.flags = 0;
|
||||
fba->sattr.emu_type = sc->sc_fb.fb_type.fb_type;
|
||||
fba->sattr.dev_specific[0] = -1;
|
||||
fba->emu_types[0] = sc->sc_fb.fb_type.fb_type;
|
||||
fba->emu_types[1] = -1;
|
||||
#undef fba
|
||||
break;
|
||||
|
||||
case FBIOGETCMAP:
|
||||
return (bt_getcmap((struct fbcmap *)data, &sc->sc_cmap, 256));
|
||||
|
||||
case FBIOPUTCMAP:
|
||||
/* copy to software map */
|
||||
#define p ((struct fbcmap *)data)
|
||||
error = bt_putcmap(p, &sc->sc_cmap, 256);
|
||||
if (error)
|
||||
return (error);
|
||||
/* now blast them into the chip */
|
||||
/* XXX should use retrace interrupt */
|
||||
cg6_loadcmap(sc, p->index, p->count);
|
||||
#undef p
|
||||
break;
|
||||
|
||||
case FBIOGVIDEO:
|
||||
*(int *)data = sc->sc_blanked;
|
||||
break;
|
||||
|
||||
case FBIOSVIDEO:
|
||||
if (*(int *)data)
|
||||
cg6_unblank(&sc->sc_dev);
|
||||
else if (!sc->sc_blanked) {
|
||||
sc->sc_blanked = 1;
|
||||
sc->sc_thc->thc_misc &= ~THC_MISC_VIDEN;
|
||||
}
|
||||
break;
|
||||
|
||||
/* these are for both FBIOSCURSOR and FBIOGCURSOR */
|
||||
#define p ((struct fbcursor *)data)
|
||||
#define cc (&sc->sc_cursor)
|
||||
|
||||
case FBIOGCURSOR:
|
||||
/* do not quite want everything here... */
|
||||
p->set = FB_CUR_SETALL; /* close enough, anyway */
|
||||
p->enable = cc->cc_enable;
|
||||
p->pos = cc->cc_pos;
|
||||
p->hot = cc->cc_hot;
|
||||
p->size = cc->cc_size;
|
||||
|
||||
/* begin ugh ... can we lose some of this crap?? */
|
||||
if (p->image != NULL) {
|
||||
count = cc->cc_size.y * 32 / NBBY;
|
||||
error = copyout((caddr_t)cc->cc_bits[1],
|
||||
(caddr_t)p->image, count);
|
||||
if (error)
|
||||
return (error);
|
||||
error = copyout((caddr_t)cc->cc_bits[0],
|
||||
(caddr_t)p->mask, count);
|
||||
if (error)
|
||||
return (error);
|
||||
}
|
||||
if (p->cmap.red != NULL) {
|
||||
error = bt_getcmap(&p->cmap,
|
||||
(union bt_cmap *)&cc->cc_color, 2);
|
||||
if (error)
|
||||
return (error);
|
||||
} else {
|
||||
p->cmap.index = 0;
|
||||
p->cmap.count = 2;
|
||||
}
|
||||
/* end ugh */
|
||||
break;
|
||||
|
||||
case FBIOSCURSOR:
|
||||
/*
|
||||
* 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(sc);
|
||||
}
|
||||
if (v & FB_CUR_SETCMAP) {
|
||||
cc->cc_color = tcm;
|
||||
cg6_loadomap(sc); /* 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(sc);
|
||||
}
|
||||
break;
|
||||
|
||||
#undef p
|
||||
#undef cc
|
||||
|
||||
case FBIOGCURPOS:
|
||||
*(struct fbcurpos *)data = sc->sc_cursor.cc_pos;
|
||||
break;
|
||||
|
||||
case FBIOSCURPOS:
|
||||
sc->sc_cursor.cc_pos = *(struct fbcurpos *)data;
|
||||
cg6_setcursor(sc);
|
||||
break;
|
||||
|
||||
case FBIOGCURMAX:
|
||||
/* max cursor size is 32x32 */
|
||||
((struct fbcurpos *)data)->x = 32;
|
||||
((struct fbcurpos *)data)->y = 32;
|
||||
break;
|
||||
|
||||
default:
|
||||
#ifdef DEBUG
|
||||
log(LOG_NOTICE, "cgsixioctl(%x) (%s[%d])\n", cmd,
|
||||
p->p_comm, p->p_pid);
|
||||
#endif
|
||||
return (ENOTTY);
|
||||
}
|
||||
return (0);
|
||||
}
|
||||
|
||||
static void
|
||||
cg6_setcursor(sc)
|
||||
register struct cgsix_softc *sc;
|
||||
{
|
||||
|
||||
/* we need to subtract the hot-spot value here */
|
||||
#define COORD(f) (sc->sc_cursor.cc_pos.f - sc->sc_cursor.cc_hot.f)
|
||||
sc->sc_thc->thc_cursxy = sc->sc_cursor.cc_enable ?
|
||||
((COORD(x) << 16) | (COORD(y) & 0xffff)) :
|
||||
(THC_CURSOFF << 16) | THC_CURSOFF;
|
||||
#undef COORD
|
||||
}
|
||||
|
||||
static void
|
||||
cg6_loadcursor(sc)
|
||||
register struct cgsix_softc *sc;
|
||||
{
|
||||
register volatile struct cg6_thc *thc;
|
||||
register u_int edgemask, m;
|
||||
register 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->sc_cursor.cc_size.x < 32)
|
||||
edgemask = ~(edgemask >> sc->sc_cursor.cc_size.x);
|
||||
thc = sc->sc_thc;
|
||||
for (i = 0; i < 32; i++) {
|
||||
m = sc->sc_cursor.cc_bits[0][i] & edgemask;
|
||||
thc->thc_cursmask[i] = m;
|
||||
thc->thc_cursbits[i] = m & sc->sc_cursor.cc_bits[1][i];
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Load a subset of the current (new) colormap into the color DAC.
|
||||
*/
|
||||
static void
|
||||
cg6_loadcmap(sc, start, ncolors)
|
||||
register struct cgsix_softc *sc;
|
||||
register int start, ncolors;
|
||||
{
|
||||
register volatile struct bt_regs *bt;
|
||||
register u_int *ip, i;
|
||||
register int count;
|
||||
|
||||
ip = &sc->sc_cmap.cm_chip[BT_D4M3(start)]; /* start/4 * 3 */
|
||||
count = BT_D4M3(start + ncolors - 1) - BT_D4M3(start) + 3;
|
||||
bt = sc->sc_bt;
|
||||
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;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Load the cursor (overlay `foreground' and `background') colors.
|
||||
*/
|
||||
static void
|
||||
cg6_loadomap(sc)
|
||||
register struct cgsix_softc *sc;
|
||||
{
|
||||
register volatile struct bt_regs *bt;
|
||||
register u_int i;
|
||||
|
||||
bt = sc->sc_bt;
|
||||
bt->bt_addr = 0x01 << 24; /* set background color */
|
||||
i = sc->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->sc_cursor.cc_color.cm_chip[1];
|
||||
bt->bt_omap = i; /* G */
|
||||
bt->bt_omap = i << 8; /* B */
|
||||
}
|
||||
|
||||
static void
|
||||
cg6_unblank(dev)
|
||||
struct device *dev;
|
||||
{
|
||||
struct cgsix_softc *sc = (struct cgsix_softc *)dev;
|
||||
|
||||
if (sc->sc_blanked) {
|
||||
sc->sc_blanked = 0;
|
||||
sc->sc_thc->thc_misc |= THC_MISC_VIDEN;
|
||||
}
|
||||
}
|
||||
|
||||
/* XXX the following should be moved to a "user interface" header */
|
||||
/*
|
||||
* Base addresses at which users can mmap() the various pieces of a cg6.
|
||||
* Note that although the Brooktree color registers do not occupy 8K,
|
||||
* the X server dies if we do not allow it to map 8K there (it just maps
|
||||
* from 0x70000000 forwards, as a contiguous chunk).
|
||||
*/
|
||||
#define CG6_USER_FBC 0x70000000
|
||||
#define CG6_USER_TEC 0x70001000
|
||||
#define CG6_USER_BTREGS 0x70002000
|
||||
#define CG6_USER_FHC 0x70004000
|
||||
#define CG6_USER_THC 0x70005000
|
||||
#define CG6_USER_ROM 0x70006000
|
||||
#define CG6_USER_RAM 0x70016000
|
||||
#define CG6_USER_DHC 0x80000000
|
||||
|
||||
struct mmo {
|
||||
u_int mo_uaddr; /* user (virtual) address */
|
||||
u_int mo_size; /* size, or 0 for video ram size */
|
||||
u_int mo_physoff; /* offset from sc_physadr */
|
||||
};
|
||||
|
||||
/*
|
||||
* Return the address that would map the given device at the given
|
||||
* offset, allowing for the given protection, or return -1 for error.
|
||||
*
|
||||
* XXX needs testing against `demanding' applications (e.g., aviator)
|
||||
*/
|
||||
int
|
||||
cgsixmap(dev, off, prot)
|
||||
dev_t dev;
|
||||
int off, prot;
|
||||
{
|
||||
register struct cgsix_softc *sc = cgsixcd.cd_devs[minor(dev)];
|
||||
register struct mmo *mo;
|
||||
register u_int u, sz;
|
||||
#define O(memb) ((u_int)(&((struct cg6_layout *)0)->memb))
|
||||
static struct mmo mmo[] = {
|
||||
{ CG6_USER_RAM, 0, O(cg6_ram) },
|
||||
|
||||
/* do not actually know how big most of these are! */
|
||||
{ CG6_USER_FBC, 1, O(cg6_fbc_un) },
|
||||
{ CG6_USER_TEC, 1, O(cg6_tec_un) },
|
||||
{ CG6_USER_BTREGS, 8192 /* XXX */, O(cg6_bt_un) },
|
||||
{ CG6_USER_FHC, 1, O(cg6_fhc_un) },
|
||||
{ CG6_USER_THC, sizeof(struct cg6_thc), O(cg6_thc_un) },
|
||||
{ CG6_USER_ROM, 65536, O(cg6_rom_un) },
|
||||
{ CG6_USER_DHC, 1, O(cg6_dhc_un) },
|
||||
};
|
||||
#define NMMO (sizeof mmo / sizeof *mmo)
|
||||
|
||||
if (off & PGOFSET)
|
||||
panic("cgsixmap");
|
||||
|
||||
/*
|
||||
* Entries with size 0 map video RAM (i.e., the size in fb data).
|
||||
*
|
||||
* Since we work in pages, the fact that the map offset table's
|
||||
* sizes are sometimes bizarre (e.g., 1) is effectively ignored:
|
||||
* one byte is as good as one page.
|
||||
*/
|
||||
for (mo = mmo; mo < &mmo[NMMO]; mo++) {
|
||||
if ((u_int)off < mo->mo_uaddr)
|
||||
continue;
|
||||
u = off - mo->mo_uaddr;
|
||||
sz = mo->mo_size ? mo->mo_size : sc->sc_fb.fb_type.fb_size;
|
||||
if (u < sz)
|
||||
return ((int)sc->sc_physadr + u + mo->mo_physoff +
|
||||
PMAP_OBIO + PMAP_NC);
|
||||
}
|
||||
#ifdef DEBUG
|
||||
{
|
||||
register struct proc *p = curproc; /* XXX */
|
||||
log(LOG_NOTICE, "cgsixmap(%x) (%s[%d])\n", off, p->p_comm, p->p_pid);
|
||||
}
|
||||
#endif
|
||||
return (-1); /* not a user-map offset */
|
||||
}
|
||||
164
sys/arch/sparc/dev/cgsixreg.h
Normal file
164
sys/arch/sparc/dev/cgsixreg.h
Normal file
@ -0,0 +1,164 @@
|
||||
/*
|
||||
* 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.
|
||||
*
|
||||
* %W% (Berkeley) %G%
|
||||
*
|
||||
* from: Header: cgsixreg.h,v 1.1 93/10/12 15:29:24 torek Exp
|
||||
* $Id: cgsixreg.h,v 1.1 1993/11/11 03:36:54 deraadt Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
* CG6 display registers. (Note, I got tired of writing `cgsix' about
|
||||
* halfway through and changed everything to cg6, but I probably missed
|
||||
* some. Unfortunately, the way config works, we need to spell out `six'
|
||||
* in some places anyway.)
|
||||
*
|
||||
* The cg6 is a complicated beastie. We have been unable to extract any
|
||||
* documentation and most of the following are guesses based on a limited
|
||||
* amount of reverse engineering.
|
||||
*
|
||||
* A cg6 is composed of numerous groups of control registers, all with TLAs:
|
||||
* FBC - frame buffer control?
|
||||
* FHC - fbc hardware configuration?
|
||||
* DHC - ???
|
||||
* TEC - transform engine control?
|
||||
* THC - TEC Hardware Configuration (this is where our action goes)
|
||||
* ROM - a 64Kbyte ROM with who knows what in it.
|
||||
* colormap - see below
|
||||
* frame buffer memory (video RAM)
|
||||
* possible other stuff
|
||||
*
|
||||
* Like the cg3, the cg6 uses a Brooktree Video DAC (see btreg.h).
|
||||
*/
|
||||
|
||||
/*
|
||||
* The layout of the THC.
|
||||
*/
|
||||
struct cg6_thc {
|
||||
u_int thc_xxx0[512]; /* ??? */
|
||||
u_int thc_hsync1; /* horizontal sync timing */
|
||||
u_int thc_hsync2; /* more hsync timing */
|
||||
u_int thc_hsync3; /* yet more hsync timing */
|
||||
u_int thc_vsync1; /* vertical sync timing */
|
||||
u_int thc_vsync2; /* only two of these */
|
||||
u_int thc_refresh; /* refresh counter */
|
||||
u_int thc_misc; /* miscellaneous control & status */
|
||||
u_int thc_xxx1[56]; /* ??? */
|
||||
u_int thc_cursxy; /* cursor x,y position (16 bits each) */
|
||||
u_int thc_cursmask[32]; /* cursor mask bits */
|
||||
u_int thc_cursbits[32]; /* what to show where mask enabled */
|
||||
};
|
||||
|
||||
/* bits in thc_misc */
|
||||
#define THC_MISC_XXX0 0xfff00000 /* unused */
|
||||
#define THC_MISC_REVMASK 0x000f0000 /* cg6 revision? */
|
||||
#define THC_MISC_REVSHIFT 16
|
||||
#define THC_MISC_XXX1 0x0000e000 /* unused */
|
||||
#define THC_MISC_RESET 0x00001000 /* ??? */
|
||||
#define THC_MISC_XXX2 0x00000800 /* unused */
|
||||
#define THC_MISC_VIDEN 0x00000400 /* video enable */
|
||||
#define THC_MISC_SYNC 0x00000200 /* not sure what ... */
|
||||
#define THC_MISC_VSYNC 0x00000100 /* ... these really are */
|
||||
#define THC_MISC_SYNCEN 0x00000080 /* sync enable */
|
||||
#define THC_MISC_CURSRES 0x00000040 /* cursor resolution */
|
||||
#define THC_MISC_INTEN 0x00000020 /* v.retrace intr enable */
|
||||
#define THC_MISC_INTR 0x00000010 /* intr pending / ack bit */
|
||||
#define THC_MISC_XXX 0x0000000f /* ??? */
|
||||
|
||||
/* cursor x / y position value for `off' */
|
||||
#define THC_CURSOFF (65536-32) /* i.e., USHRT_MAX+1-32 */
|
||||
|
||||
/*
|
||||
* This structure exists only to compute the layout of the CG6
|
||||
* hardware. Each of the individual substructures lives on a
|
||||
* separate `page' (where a `page' is at least 4K), and many are
|
||||
* very far apart. We avoid large offsets (which make for lousy
|
||||
* code) by using pointers to the individual interesting pieces,
|
||||
* and map them in independently (to avoid using up PTEs unnecessarily).
|
||||
*/
|
||||
struct cg6_layout {
|
||||
/* ROM at 0 */
|
||||
union {
|
||||
long un_id; /* ID = ?? */
|
||||
char un_rom[65536]; /* 64K rom */
|
||||
char un_pad[0x200000];
|
||||
} cg6_rom_un;
|
||||
|
||||
/* Brooktree DAC at 0x200000 */
|
||||
union {
|
||||
struct bt_regs un_btregs;
|
||||
char un_pad[0x040000];
|
||||
} cg6_bt_un;
|
||||
|
||||
/* DHC, whatever that is, at 0x240000 */
|
||||
union {
|
||||
char un_pad[0x40000];
|
||||
} cg6_dhc_un;
|
||||
|
||||
/* ALT, whatever that is, at 0x280000 */
|
||||
union {
|
||||
char un_pad[0x80000];
|
||||
} cg6_alt_un;
|
||||
|
||||
/* FHC, whatever that is, at 0x300000 */
|
||||
union {
|
||||
char un_pad[0x1000];
|
||||
} cg6_fhc_un;
|
||||
|
||||
/* THC at 0x301000 */
|
||||
union {
|
||||
struct cg6_thc un_thc;
|
||||
char un_pad[0x400000 - 0x1000];
|
||||
} cg6_thc_un;
|
||||
|
||||
/* FBC at 0x700000 */
|
||||
union {
|
||||
char un_pad[0x1000];
|
||||
} cg6_fbc_un;
|
||||
|
||||
/* TEC at 0x701000 */
|
||||
union {
|
||||
char un_pad[0x100000 - 0x1000];
|
||||
} cg6_tec_un;
|
||||
|
||||
/* Video RAM at 0x800000 */
|
||||
char cg6_ram[1024 * 1024]; /* approx.? */
|
||||
};
|
||||
@ -39,16 +39,18 @@
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)cgthree.c 8.1 (Berkeley) 6/11/93
|
||||
* %W% (Berkeley) %G%
|
||||
*
|
||||
* from: Header: cgthree.c,v 1.6 92/11/26 02:28:06 torek Exp
|
||||
* $Id: cgthree.c,v 1.2 1993/10/11 02:45:51 deraadt Exp $
|
||||
* from: Header: cgthree.c,v 1.8 93/10/31 05:09:24 torek Exp
|
||||
* $Id: cgthree.c,v 1.3 1993/11/11 03:36:55 deraadt Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
* color display (cgthree) driver.
|
||||
*
|
||||
* Does not handle interrupts, even though they can occur.
|
||||
*
|
||||
* XXX should defer colormap updates to vertical retrace interrupts
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
@ -64,23 +66,20 @@
|
||||
#include <machine/pmap.h>
|
||||
#include <machine/fbvar.h>
|
||||
|
||||
#include <sparc/sbus/btreg.h>
|
||||
#include <sparc/sbus/btvar.h>
|
||||
#include <sparc/sbus/cgthreereg.h>
|
||||
#include <sparc/sbus/sbusvar.h>
|
||||
|
||||
union colormap {
|
||||
u_char cm_map[256][3]; /* 256 R/G/B entries */
|
||||
u_int cm_chip[256 * 3 / 4]; /* the way the chip gets loaded */
|
||||
};
|
||||
|
||||
/* per-display variables */
|
||||
struct cgthree_softc {
|
||||
struct device sc_dev; /* base device */
|
||||
struct sbusdev sc_sd; /* sbus device */
|
||||
struct fbdevice sc_fb; /* frame buffer device */
|
||||
volatile struct cgthreereg *sc_reg;/* control registers */
|
||||
volatile struct bt_regs *sc_bt; /* Brooktree registers */
|
||||
caddr_t sc_phys; /* display RAM (phys addr) */
|
||||
int sc_blanked; /* true if blanked */
|
||||
union colormap sc_cmap; /* current color map */
|
||||
union bt_cmap sc_cmap; /* Brooktree color map */
|
||||
};
|
||||
|
||||
/* autoconfiguration driver */
|
||||
@ -89,11 +88,6 @@ struct cfdriver cgthreecd =
|
||||
{ NULL, "cgthree", matchbyname, cgthreeattach,
|
||||
DV_DULL, sizeof(struct cgthree_softc) };
|
||||
|
||||
/*
|
||||
* XXX we do not handle frame buffer interrupts (do not know how) ... we
|
||||
* need these to do color map loading at vertical retrace time!
|
||||
*/
|
||||
|
||||
/* frame buffer generic driver */
|
||||
static void cgthreeunblank(struct device *);
|
||||
static struct fbdriver cgthreefbdriver = { cgthreeunblank };
|
||||
@ -103,9 +97,8 @@ extern struct tty *fbconstty;
|
||||
extern int (*v_putc)();
|
||||
extern int nullop();
|
||||
static int cgthree_cnputc();
|
||||
#ifdef notdef
|
||||
static struct cgthree_softc *bwcons;
|
||||
#endif
|
||||
|
||||
static void cgthreeloadcmap __P((struct cgthree_softc *, int, int));
|
||||
|
||||
#define CGTHREE_MAJOR 55 /* XXX */
|
||||
|
||||
@ -120,7 +113,7 @@ cgthreeattach(parent, self, args)
|
||||
register struct cgthree_softc *sc = (struct cgthree_softc *)self;
|
||||
register struct sbus_attach_args *sa = args;
|
||||
register int node = sa->sa_ra.ra_node, ramsize, i;
|
||||
register volatile struct cgthreereg *cg3;
|
||||
register volatile struct bt_regs *bt;
|
||||
register struct cgthree_all *p;
|
||||
int isconsole;
|
||||
|
||||
@ -155,15 +148,19 @@ cgthreeattach(parent, self, args)
|
||||
/* this probably cannot happen, but what the heck */
|
||||
sc->sc_fb.fb_pixels = mapiodev(p->ba_ram, ramsize);
|
||||
}
|
||||
sc->sc_reg = cg3 = (volatile struct cgthreereg *)
|
||||
mapiodev((caddr_t)&p->ba_reg, sizeof(p->ba_reg));
|
||||
sc->sc_bt = bt = (volatile struct bt_regs *)
|
||||
mapiodev((caddr_t)&p->ba_btreg, sizeof(p->ba_btreg));
|
||||
sc->sc_phys = p->ba_ram;
|
||||
|
||||
/* grab initial (current) color map, then set video */
|
||||
cg3->cg3_addr = 0;
|
||||
/* grab initial (current) color map */
|
||||
bt->bt_addr = 0;
|
||||
for (i = 0; i < 256 * 3 / 4; i++)
|
||||
sc->sc_cmap.cm_chip[i] = cg3->cg3_cmap;
|
||||
cgthreeunblank(&sc->sc_dev);
|
||||
sc->sc_cmap.cm_chip[i] = bt->bt_cmap;
|
||||
/* make sure we are not blanked (see cgthreeunblank) */
|
||||
bt->bt_addr = 0x06; /* command reg */
|
||||
bt->bt_ctrl = 0x73; /* overlay plane */
|
||||
bt->bt_addr = 0x04; /* read mask */
|
||||
bt->bt_ctrl = 0xff; /* color planes */
|
||||
|
||||
if (isconsole) {
|
||||
printf(" (console)\n");
|
||||
@ -204,12 +201,13 @@ int
|
||||
cgthreeioctl(dev, cmd, data, flags, p)
|
||||
dev_t dev;
|
||||
int cmd;
|
||||
caddr_t data;
|
||||
register caddr_t data;
|
||||
int flags;
|
||||
struct proc *p;
|
||||
{
|
||||
register struct cgthree_softc *sc = cgthreecd.cd_devs[minor(dev)];
|
||||
register struct fbgattr *fba;
|
||||
int error;
|
||||
|
||||
switch (cmd) {
|
||||
|
||||
@ -229,58 +227,19 @@ cgthreeioctl(dev, cmd, data, flags, p)
|
||||
fba->emu_types[1] = -1;
|
||||
break;
|
||||
|
||||
case FBIOGETCMAP: {
|
||||
register struct fbcmap *p = (struct fbcmap *)data;
|
||||
register int i, color, count, error;
|
||||
register u_char *cp;
|
||||
case FBIOGETCMAP:
|
||||
return (bt_getcmap((struct fbcmap *)data, &sc->sc_cmap, 256));
|
||||
|
||||
/* get color map from software copy */
|
||||
if ((unsigned)(color = p->index) >= 256 ||
|
||||
(unsigned)(count = p->count) > 256 - color)
|
||||
return (EINVAL);
|
||||
if (!useracc(p->red, count, B_WRITE) ||
|
||||
!useracc(p->green, count, B_WRITE) ||
|
||||
!useracc(p->blue, count, B_WRITE))
|
||||
return (EFAULT);
|
||||
cp = &sc->sc_cmap.cm_map[color][0];
|
||||
for (i = 0; i < count; cp += 3, i++) {
|
||||
p->red[i] = cp[0];
|
||||
p->green[i] = cp[1];
|
||||
p->blue[i] = cp[2];
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case FBIOPUTCMAP: {
|
||||
register struct fbcmap *p = (struct fbcmap *)data;
|
||||
register int i, color, count, error;
|
||||
register u_char *cp;
|
||||
register u_int *ip;
|
||||
|
||||
/* update software copy */
|
||||
if ((unsigned)(color = p->index) >= 256 ||
|
||||
(unsigned)(count = p->count) > 256 - color)
|
||||
return (EINVAL);
|
||||
if (!useracc(p->red, count, B_READ) ||
|
||||
!useracc(p->green, count, B_READ) ||
|
||||
!useracc(p->blue, count, B_READ))
|
||||
return (EFAULT);
|
||||
cp = &sc->sc_cmap.cm_map[color][0];
|
||||
for (i = 0; i < count; cp += 3, i++) {
|
||||
cp[0] = p->red[i];
|
||||
cp[1] = p->green[i];
|
||||
cp[2] = p->blue[i];
|
||||
}
|
||||
/* then blast them into the chip */
|
||||
case FBIOPUTCMAP:
|
||||
/* copy to software map */
|
||||
#define p ((struct fbcmap *)data)
|
||||
error = bt_putcmap(p, &sc->sc_cmap, 256);
|
||||
if (error)
|
||||
return (error);
|
||||
/* now blast them into the chip */
|
||||
/* XXX should use retrace interrupt */
|
||||
#define D4M3(x) ((((x) >> 2) << 1) + ((x) >> 2)) /* (x / 4) * 3 */
|
||||
#define D4M4(x) ((x) & ~3) /* (x / 4) * 4 */
|
||||
ip = &sc->sc_cmap.cm_chip[D4M3(color)];
|
||||
count = D4M3(color + count - 1) - D4M3(color) + 3;
|
||||
sc->sc_reg->cg3_addr = D4M4(color);
|
||||
while (--count >= 0)
|
||||
sc->sc_reg->cg3_cmap = *ip++;
|
||||
}
|
||||
cgthreeloadcmap(sc, p->index, p->count);
|
||||
#undef p
|
||||
break;
|
||||
|
||||
case FBIOGVIDEO:
|
||||
@ -290,17 +249,22 @@ cgthreeioctl(dev, cmd, data, flags, p)
|
||||
case FBIOSVIDEO:
|
||||
if (*(int *)data)
|
||||
cgthreeunblank(&sc->sc_dev);
|
||||
else {
|
||||
register volatile struct cgthreereg *cg3 = sc->sc_reg;
|
||||
else if (!sc->sc_blanked) {
|
||||
register volatile struct bt_regs *bt;
|
||||
|
||||
bt = sc->sc_bt;
|
||||
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;
|
||||
|
||||
sc->sc_blanked = 1;
|
||||
cg3->cg3_addr = 0x06; /* command reg */
|
||||
cg3->cg3_ctrl = 0x70; /* overlay plane */
|
||||
cg3->cg3_addr = 0x04; /* read mask */
|
||||
cg3->cg3_ctrl = 0x00; /* color planes */
|
||||
/* set color 0 to black; scribble on R of color 1 */
|
||||
cg3->cg3_addr = 0;
|
||||
cg3->cg3_cmap = 0;
|
||||
}
|
||||
break;
|
||||
|
||||
@ -310,21 +274,49 @@ cgthreeioctl(dev, cmd, data, flags, p)
|
||||
return (0);
|
||||
}
|
||||
|
||||
/*
|
||||
* Undo the effect of an FBIOSVIDEO that turns the video off.
|
||||
*/
|
||||
static void
|
||||
cgthreeunblank(dev)
|
||||
struct device *dev;
|
||||
{
|
||||
struct cgthree_softc *sc = (struct cgthree_softc *)dev;
|
||||
register volatile struct cgthreereg *cg3 = sc->sc_reg;
|
||||
register volatile struct bt_regs *bt;
|
||||
|
||||
sc->sc_blanked = 0;
|
||||
cg3->cg3_addr = 0x06; /* command reg */
|
||||
cg3->cg3_ctrl = 0x73; /* overlay plane */
|
||||
cg3->cg3_addr = 0x04; /* read mask */
|
||||
cg3->cg3_ctrl = 0xff; /* color planes */
|
||||
/* restore color 0 and R of color 1 */
|
||||
cg3->cg3_addr = 0;
|
||||
cg3->cg3_cmap = sc->sc_cmap.cm_chip[0];
|
||||
if (sc->sc_blanked) {
|
||||
sc->sc_blanked = 0;
|
||||
bt = sc->sc_bt;
|
||||
/* restore color 0 (and R of color 1) */
|
||||
bt->bt_addr = 0;
|
||||
bt->bt_cmap = sc->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 */
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Load a subset of the current (new) colormap into the Brooktree DAC.
|
||||
*/
|
||||
static void
|
||||
cgthreeloadcmap(sc, start, ncolors)
|
||||
register struct cgthree_softc *sc;
|
||||
register int start, ncolors;
|
||||
{
|
||||
register volatile struct bt_regs *bt;
|
||||
register u_int *ip;
|
||||
register int count;
|
||||
|
||||
ip = &sc->sc_cmap.cm_chip[BT_D4M3(start)]; /* start/4 * 3 */
|
||||
count = BT_D4M3(start + ncolors - 1) - BT_D4M3(start) + 3;
|
||||
bt = sc->sc_bt;
|
||||
bt->bt_addr = BT_D4M4(start);
|
||||
while (--count >= 0)
|
||||
bt->bt_cmap = *ip++;
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
@ -39,45 +39,16 @@
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)cgthreereg.h 8.1 (Berkeley) 6/11/93
|
||||
* @(#)cgthreereg.h 8.1 (Berkeley) 6/11/93
|
||||
*
|
||||
* from: Header: cgthreereg.h,v 1.5 92/11/26 02:28:07 torek Exp
|
||||
* $Id: cgthreereg.h,v 1.1 1993/10/02 10:23:48 deraadt Exp $
|
||||
* from: $Header: /cvsroot/src/sys/arch/sparc/dev/Attic/cgthreereg.h,v 1.2 1993/11/11 03:36:56 deraadt Exp $
|
||||
* $Id: cgthreereg.h,v 1.2 1993/11/11 03:36:56 deraadt Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
* cgthree display registers.
|
||||
*
|
||||
* The registers start at offset 0x400000 and repeat every 32 bytes
|
||||
* (presumably only the low order address lines are decoded). Video RAM
|
||||
* starts at offset 0x800000. We use separate pointers to each so that
|
||||
* the sparc addressing modes work well.
|
||||
*
|
||||
* The cg3 has a Brooktree Bt458 (?) chip to do everything (Brooktree
|
||||
* makes the only decent color frame buffer chips). To update the
|
||||
* color map one would normally do byte writes, but the hardware
|
||||
* takes longword writes. Since there are three registers for each
|
||||
* color map entry (R, then G, then B), we have to set color 1 with
|
||||
* a write to address 0 (setting 0's R/G/B and color 1's R) followed
|
||||
* by a second write to address 1 (setting color 1's G/B and color 2's
|
||||
* R/G). Software must therefore keep a copy of the current map.
|
||||
*
|
||||
* The colormap address register increments automatically, so the above
|
||||
* write is done as:
|
||||
*
|
||||
* p->cg3_cadr = 0;
|
||||
* p->cg3_cmap = R0G0B0R1;
|
||||
* p->cg3_cmap = G1B1R2G2;
|
||||
*
|
||||
* Yow!
|
||||
* cgthree display registers. Much like bwtwo registers, except that
|
||||
* there is a Brooktree Video DAC in there (so we also use btreg.h).
|
||||
*/
|
||||
struct cgthreereg {
|
||||
u_int cg3_addr; /* ?any? address register */
|
||||
u_int cg3_cmap; /* colormap data register */
|
||||
u_int cg3_ctrl; /* control register */
|
||||
u_int cg3_omap; /* overlay map register */
|
||||
char cg3_xxx0[16]; /* ? (make same size as bwtwo) */
|
||||
};
|
||||
|
||||
/* offsets */
|
||||
#define CG3REG_ID 0
|
||||
@ -88,7 +59,7 @@ struct cgthreereg {
|
||||
struct cgthree_all {
|
||||
long ba_id; /* ID = 0xfe010104 on my IPC */
|
||||
char ba_xxx0[0x400000-4];
|
||||
struct cgthreereg ba_reg; /* control registers */
|
||||
char ba_xxx1[0x400000-32];
|
||||
struct bt_regs ba_btreg; /* Brooktree registers */
|
||||
char ba_xxx1[0x400000-sizeof(struct bt_regs)];
|
||||
char ba_ram[4096]; /* actually larger */
|
||||
};
|
||||
|
||||
116
sys/arch/sparc/sbus/bt_subr.c
Normal file
116
sys/arch/sparc/sbus/bt_subr.c
Normal file
@ -0,0 +1,116 @@
|
||||
/*
|
||||
* 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.
|
||||
*
|
||||
* %W% (Berkeley) %G%
|
||||
*
|
||||
* from: Header: bt_subr.c,v 1.1 93/10/12 15:28:39 torek Exp
|
||||
* $Id: bt_subr.c,v 1.1 1993/11/11 03:36:48 deraadt Exp $
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/buf.h>
|
||||
#include <sys/errno.h>
|
||||
#include <sys/fbio.h>
|
||||
|
||||
#include <sparc/sbus/btreg.h>
|
||||
#include <sparc/sbus/btvar.h>
|
||||
|
||||
/*
|
||||
* 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(p, cm, cmsize)
|
||||
register struct fbcmap *p;
|
||||
union bt_cmap *cm;
|
||||
int cmsize;
|
||||
{
|
||||
register u_int i, start, count;
|
||||
register 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(p, cm, cmsize)
|
||||
register struct fbcmap *p;
|
||||
union bt_cmap *cm;
|
||||
int cmsize;
|
||||
{
|
||||
register u_int i, start, count;
|
||||
register 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);
|
||||
}
|
||||
81
sys/arch/sparc/sbus/btreg.h
Normal file
81
sys/arch/sparc/sbus/btreg.h
Normal file
@ -0,0 +1,81 @@
|
||||
/*
|
||||
* 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.
|
||||
*
|
||||
* %W% (Berkeley) %G%
|
||||
*
|
||||
* from: Header: btreg.h,v 1.1 93/10/12 15:28:52 torek Exp
|
||||
* $Id: btreg.h,v 1.1 1993/11/11 03:36:50 deraadt Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
* Several Sun color frame buffers use some kind of Brooktree video
|
||||
* DAC (e.g., the Bt458, -- in any case, Brooktree make the only
|
||||
* decent color frame buffer chips).
|
||||
*
|
||||
* Color map control on these is a bit funky in a SPARCstation.
|
||||
* To update the color map one would normally do byte writes, but
|
||||
* the hardware takes longword writes. Since there are three
|
||||
* registers for each color map entry (R, then G, then B), we have
|
||||
* to set color 1 with a write to address 0 (setting 0's R/G/B and
|
||||
* color 1's R) followed by a second write to address 1 (setting
|
||||
* color 1's G/B and color 2's R/G). Software must therefore keep
|
||||
* a copy of the current map.
|
||||
*
|
||||
* The colormap address register increments automatically, so the
|
||||
* above write is done as:
|
||||
*
|
||||
* bt->bt_addr = 0;
|
||||
* bt->bt_cmap = R0G0B0R1;
|
||||
* bt->bt_cmap = G1B1R2G2;
|
||||
* ...
|
||||
*
|
||||
* Yow!
|
||||
*
|
||||
* Bonus complication: on the cg6, only the top 8 bits of each 32 bit
|
||||
* register matter, even though the cg3 takes all the bits from all
|
||||
* bytes written to it.
|
||||
*/
|
||||
struct bt_regs {
|
||||
u_int bt_addr; /* map address register */
|
||||
u_int bt_cmap; /* colormap data register */
|
||||
u_int bt_ctrl; /* control register */
|
||||
u_int bt_omap; /* overlay (cursor) map register */
|
||||
};
|
||||
74
sys/arch/sparc/sbus/btvar.h
Normal file
74
sys/arch/sparc/sbus/btvar.h
Normal file
@ -0,0 +1,74 @@
|
||||
/*
|
||||
* 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.
|
||||
*
|
||||
* %W% (Berkeley) %G%
|
||||
*
|
||||
* from: Header: btvar.h,v 1.1 93/10/12 15:29:01 torek Exp
|
||||
* $Id: btvar.h,v 1.1 1993/11/11 03:36:51 deraadt Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
* Brooktree color frame buffer state variables (see btreg.h).
|
||||
*
|
||||
* Unfortunately, remarkably little code can be shared between the
|
||||
* cg3 and cg6 drivers here, as the cg3 registers do longword-ops
|
||||
* `as expected', but the cg6 ones use only the upper byte.
|
||||
*
|
||||
* Still, the software color map manipulation is not completely trivial.
|
||||
*/
|
||||
union bt_cmap {
|
||||
u_char cm_map[256][3]; /* 256 R/G/B entries */
|
||||
u_int cm_chip[256 * 3 / 4]; /* the way the chip gets loaded */
|
||||
};
|
||||
|
||||
/*
|
||||
* Routines in bt_subr.c.
|
||||
*/
|
||||
int bt_getcmap __P((struct fbcmap *, union bt_cmap *, int));
|
||||
int bt_putcmap __P((struct fbcmap *, union bt_cmap *, int));
|
||||
|
||||
/*
|
||||
* Compute (x / 4) * 3 and (x / 4) * 4. These are used in turning
|
||||
* RGB indices (which are in multiples of three) into `chip RGB' values
|
||||
* (which are in multiples of four).
|
||||
*/
|
||||
#define BT_D4M3(x) ((((x) >> 2) << 1) + ((x) >> 2)) /* (x / 4) * 3 */
|
||||
#define BT_D4M4(x) ((x) & ~3) /* (x / 4) * 4 */
|
||||
561
sys/arch/sparc/sbus/cgsix.c
Normal file
561
sys/arch/sparc/sbus/cgsix.c
Normal file
@ -0,0 +1,561 @@
|
||||
/*
|
||||
* 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.
|
||||
*
|
||||
* %W% (Berkeley) %G%
|
||||
*
|
||||
* from: Header: cgsix.c,v 1.2 93/10/18 00:01:51 torek Exp
|
||||
* $Id: cgsix.c,v 1.1 1993/11/11 03:36:52 deraadt Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
* color display (cgsix) driver.
|
||||
*
|
||||
* Does not handle interrupts, even though they can occur.
|
||||
*
|
||||
* XXX should defer colormap updates to vertical retrace interrupts
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/buf.h>
|
||||
#include <sys/device.h>
|
||||
#include <sys/fbio.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <sys/malloc.h>
|
||||
#include <sys/mman.h>
|
||||
#include <sys/tty.h>
|
||||
|
||||
#ifdef DEBUG
|
||||
#include <sys/proc.h>
|
||||
#include <sys/syslog.h>
|
||||
#endif
|
||||
|
||||
#include <machine/autoconf.h>
|
||||
#include <machine/pmap.h>
|
||||
#include <machine/fbvar.h>
|
||||
|
||||
#include <sparc/sbus/btreg.h>
|
||||
#include <sparc/sbus/btvar.h>
|
||||
#include <sparc/sbus/cgsixreg.h>
|
||||
#include <sparc/sbus/sbusvar.h>
|
||||
|
||||
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 */
|
||||
};
|
||||
|
||||
/* per-display variables */
|
||||
struct cgsix_softc {
|
||||
struct device sc_dev; /* base device */
|
||||
struct sbusdev sc_sd; /* sbus device */
|
||||
struct fbdevice sc_fb; /* frame buffer device */
|
||||
volatile struct cg6_layout *sc_physadr; /* phys addr of h/w */
|
||||
volatile struct bt_regs *sc_bt; /* Brooktree registers */
|
||||
volatile struct cg6_thc *sc_thc; /* THC registers */
|
||||
int sc_blanked; /* true if blanked */
|
||||
struct cg6_cursor sc_cursor; /* software cursor info */
|
||||
union bt_cmap sc_cmap; /* Brooktree color map */
|
||||
};
|
||||
|
||||
/* autoconfiguration driver */
|
||||
static void cgsixattach(struct device *, struct device *, void *);
|
||||
struct cfdriver cgsixcd =
|
||||
{ NULL, "cgsix", matchbyname, cgsixattach,
|
||||
DV_DULL, sizeof(struct cgsix_softc) };
|
||||
|
||||
/* frame buffer generic driver */
|
||||
static void cg6_unblank(struct device *);
|
||||
static struct fbdriver cg6_fbdriver = { cg6_unblank };
|
||||
|
||||
/*
|
||||
* Unlike the bw2 and cg3 drivers, we do not need to provide an rconsole
|
||||
* interface, as the cg6 is fast enough.
|
||||
*/
|
||||
|
||||
extern int fbnode;
|
||||
|
||||
#define CGSIX_MAJOR 67 /* XXX */
|
||||
|
||||
static void cg6_loadcmap __P((struct cgsix_softc *, int, int));
|
||||
static void cg6_loadomap __P((struct cgsix_softc *));
|
||||
static void cg6_setcursor __P((struct cgsix_softc *));/* set position */
|
||||
static void cg6_loadcursor __P((struct cgsix_softc *));/* set shape */
|
||||
|
||||
/*
|
||||
* Attach a display.
|
||||
*/
|
||||
void
|
||||
cgsixattach(parent, self, args)
|
||||
struct device *parent, *self;
|
||||
void *args;
|
||||
{
|
||||
register struct cgsix_softc *sc = (struct cgsix_softc *)self;
|
||||
register struct sbus_attach_args *sa = args;
|
||||
register int node = sa->sa_ra.ra_node, ramsize, i;
|
||||
register volatile struct bt_regs *bt;
|
||||
register volatile struct cg6_layout *p;
|
||||
|
||||
sc->sc_fb.fb_major = CGSIX_MAJOR; /* XXX to be removed */
|
||||
|
||||
sc->sc_fb.fb_driver = &cg6_fbdriver;
|
||||
sc->sc_fb.fb_device = &sc->sc_dev;
|
||||
sc->sc_fb.fb_type.fb_type = FBTYPE_SUNFAST_COLOR;
|
||||
sc->sc_fb.fb_type.fb_width = getpropint(node, "width", 1152);
|
||||
sc->sc_fb.fb_type.fb_height = getpropint(node, "height", 900);
|
||||
sc->sc_fb.fb_linebytes = getpropint(node, "linebytes", 1152);
|
||||
ramsize = sc->sc_fb.fb_type.fb_height * sc->sc_fb.fb_linebytes;
|
||||
sc->sc_fb.fb_type.fb_depth = 8;
|
||||
sc->sc_fb.fb_type.fb_cmsize = 256;
|
||||
sc->sc_fb.fb_type.fb_size = ramsize;
|
||||
printf(": %s, %d x %d", getpropstring(node, "model"),
|
||||
sc->sc_fb.fb_type.fb_width, sc->sc_fb.fb_type.fb_height);
|
||||
|
||||
/*
|
||||
* Dunno what the PROM has mapped, though obviously it must have
|
||||
* the video RAM mapped. Just map what we care about for ourselves
|
||||
* (the THC and Brooktree registers).
|
||||
*/
|
||||
sc->sc_physadr = p = (struct cg6_layout *)sa->sa_ra.ra_paddr;
|
||||
sc->sc_bt = bt = (volatile struct bt_regs *)
|
||||
mapiodev((caddr_t)&p->cg6_bt_un.un_btregs, sizeof(struct bt_regs));
|
||||
sc->sc_thc = (volatile struct cg6_thc *)
|
||||
mapiodev((caddr_t)&p->cg6_thc_un.un_thc, sizeof(struct cg6_thc));
|
||||
|
||||
/* grab initial (current) color map (DOES THIS WORK?) */
|
||||
bt->bt_addr = 0;
|
||||
for (i = 0; i < 256 * 3; i++)
|
||||
((char *)&sc->sc_cmap)[i] = bt->bt_cmap >> 24;
|
||||
|
||||
/* enable video */
|
||||
sc->sc_thc->thc_misc |= THC_MISC_VIDEN;
|
||||
|
||||
printf("\n");
|
||||
sbus_establish(&sc->sc_sd, &sc->sc_dev);
|
||||
if (node == fbnode)
|
||||
fb_attach(&sc->sc_fb);
|
||||
}
|
||||
|
||||
int
|
||||
cgsixopen(dev, flags, mode, p)
|
||||
dev_t dev;
|
||||
int flags, mode;
|
||||
struct proc *p;
|
||||
{
|
||||
int unit = minor(dev);
|
||||
|
||||
if (unit >= cgsixcd.cd_ndevs || cgsixcd.cd_devs[unit] == NULL)
|
||||
return (ENXIO);
|
||||
return (0);
|
||||
}
|
||||
|
||||
int
|
||||
cgsixclose(dev, flags, mode, p)
|
||||
dev_t dev;
|
||||
int flags, mode;
|
||||
struct proc *p;
|
||||
{
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
int
|
||||
cgsixioctl(dev, cmd, data, flags, p)
|
||||
dev_t dev;
|
||||
int cmd;
|
||||
register caddr_t data;
|
||||
int flags;
|
||||
struct proc *p;
|
||||
{
|
||||
register struct cgsix_softc *sc = cgsixcd.cd_devs[minor(dev)];
|
||||
u_int count;
|
||||
int i, v, error;
|
||||
union cursor_cmap tcm;
|
||||
|
||||
switch (cmd) {
|
||||
|
||||
case FBIOGTYPE:
|
||||
*(struct fbtype *)data = sc->sc_fb.fb_type;
|
||||
break;
|
||||
|
||||
case FBIOGATTR:
|
||||
#define fba ((struct fbgattr *)data)
|
||||
fba->real_type = sc->sc_fb.fb_type.fb_type;
|
||||
fba->owner = 0; /* XXX ??? */
|
||||
fba->fbtype = sc->sc_fb.fb_type;
|
||||
fba->sattr.flags = 0;
|
||||
fba->sattr.emu_type = sc->sc_fb.fb_type.fb_type;
|
||||
fba->sattr.dev_specific[0] = -1;
|
||||
fba->emu_types[0] = sc->sc_fb.fb_type.fb_type;
|
||||
fba->emu_types[1] = -1;
|
||||
#undef fba
|
||||
break;
|
||||
|
||||
case FBIOGETCMAP:
|
||||
return (bt_getcmap((struct fbcmap *)data, &sc->sc_cmap, 256));
|
||||
|
||||
case FBIOPUTCMAP:
|
||||
/* copy to software map */
|
||||
#define p ((struct fbcmap *)data)
|
||||
error = bt_putcmap(p, &sc->sc_cmap, 256);
|
||||
if (error)
|
||||
return (error);
|
||||
/* now blast them into the chip */
|
||||
/* XXX should use retrace interrupt */
|
||||
cg6_loadcmap(sc, p->index, p->count);
|
||||
#undef p
|
||||
break;
|
||||
|
||||
case FBIOGVIDEO:
|
||||
*(int *)data = sc->sc_blanked;
|
||||
break;
|
||||
|
||||
case FBIOSVIDEO:
|
||||
if (*(int *)data)
|
||||
cg6_unblank(&sc->sc_dev);
|
||||
else if (!sc->sc_blanked) {
|
||||
sc->sc_blanked = 1;
|
||||
sc->sc_thc->thc_misc &= ~THC_MISC_VIDEN;
|
||||
}
|
||||
break;
|
||||
|
||||
/* these are for both FBIOSCURSOR and FBIOGCURSOR */
|
||||
#define p ((struct fbcursor *)data)
|
||||
#define cc (&sc->sc_cursor)
|
||||
|
||||
case FBIOGCURSOR:
|
||||
/* do not quite want everything here... */
|
||||
p->set = FB_CUR_SETALL; /* close enough, anyway */
|
||||
p->enable = cc->cc_enable;
|
||||
p->pos = cc->cc_pos;
|
||||
p->hot = cc->cc_hot;
|
||||
p->size = cc->cc_size;
|
||||
|
||||
/* begin ugh ... can we lose some of this crap?? */
|
||||
if (p->image != NULL) {
|
||||
count = cc->cc_size.y * 32 / NBBY;
|
||||
error = copyout((caddr_t)cc->cc_bits[1],
|
||||
(caddr_t)p->image, count);
|
||||
if (error)
|
||||
return (error);
|
||||
error = copyout((caddr_t)cc->cc_bits[0],
|
||||
(caddr_t)p->mask, count);
|
||||
if (error)
|
||||
return (error);
|
||||
}
|
||||
if (p->cmap.red != NULL) {
|
||||
error = bt_getcmap(&p->cmap,
|
||||
(union bt_cmap *)&cc->cc_color, 2);
|
||||
if (error)
|
||||
return (error);
|
||||
} else {
|
||||
p->cmap.index = 0;
|
||||
p->cmap.count = 2;
|
||||
}
|
||||
/* end ugh */
|
||||
break;
|
||||
|
||||
case FBIOSCURSOR:
|
||||
/*
|
||||
* 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(sc);
|
||||
}
|
||||
if (v & FB_CUR_SETCMAP) {
|
||||
cc->cc_color = tcm;
|
||||
cg6_loadomap(sc); /* 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(sc);
|
||||
}
|
||||
break;
|
||||
|
||||
#undef p
|
||||
#undef cc
|
||||
|
||||
case FBIOGCURPOS:
|
||||
*(struct fbcurpos *)data = sc->sc_cursor.cc_pos;
|
||||
break;
|
||||
|
||||
case FBIOSCURPOS:
|
||||
sc->sc_cursor.cc_pos = *(struct fbcurpos *)data;
|
||||
cg6_setcursor(sc);
|
||||
break;
|
||||
|
||||
case FBIOGCURMAX:
|
||||
/* max cursor size is 32x32 */
|
||||
((struct fbcurpos *)data)->x = 32;
|
||||
((struct fbcurpos *)data)->y = 32;
|
||||
break;
|
||||
|
||||
default:
|
||||
#ifdef DEBUG
|
||||
log(LOG_NOTICE, "cgsixioctl(%x) (%s[%d])\n", cmd,
|
||||
p->p_comm, p->p_pid);
|
||||
#endif
|
||||
return (ENOTTY);
|
||||
}
|
||||
return (0);
|
||||
}
|
||||
|
||||
static void
|
||||
cg6_setcursor(sc)
|
||||
register struct cgsix_softc *sc;
|
||||
{
|
||||
|
||||
/* we need to subtract the hot-spot value here */
|
||||
#define COORD(f) (sc->sc_cursor.cc_pos.f - sc->sc_cursor.cc_hot.f)
|
||||
sc->sc_thc->thc_cursxy = sc->sc_cursor.cc_enable ?
|
||||
((COORD(x) << 16) | (COORD(y) & 0xffff)) :
|
||||
(THC_CURSOFF << 16) | THC_CURSOFF;
|
||||
#undef COORD
|
||||
}
|
||||
|
||||
static void
|
||||
cg6_loadcursor(sc)
|
||||
register struct cgsix_softc *sc;
|
||||
{
|
||||
register volatile struct cg6_thc *thc;
|
||||
register u_int edgemask, m;
|
||||
register 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->sc_cursor.cc_size.x < 32)
|
||||
edgemask = ~(edgemask >> sc->sc_cursor.cc_size.x);
|
||||
thc = sc->sc_thc;
|
||||
for (i = 0; i < 32; i++) {
|
||||
m = sc->sc_cursor.cc_bits[0][i] & edgemask;
|
||||
thc->thc_cursmask[i] = m;
|
||||
thc->thc_cursbits[i] = m & sc->sc_cursor.cc_bits[1][i];
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Load a subset of the current (new) colormap into the color DAC.
|
||||
*/
|
||||
static void
|
||||
cg6_loadcmap(sc, start, ncolors)
|
||||
register struct cgsix_softc *sc;
|
||||
register int start, ncolors;
|
||||
{
|
||||
register volatile struct bt_regs *bt;
|
||||
register u_int *ip, i;
|
||||
register int count;
|
||||
|
||||
ip = &sc->sc_cmap.cm_chip[BT_D4M3(start)]; /* start/4 * 3 */
|
||||
count = BT_D4M3(start + ncolors - 1) - BT_D4M3(start) + 3;
|
||||
bt = sc->sc_bt;
|
||||
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;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Load the cursor (overlay `foreground' and `background') colors.
|
||||
*/
|
||||
static void
|
||||
cg6_loadomap(sc)
|
||||
register struct cgsix_softc *sc;
|
||||
{
|
||||
register volatile struct bt_regs *bt;
|
||||
register u_int i;
|
||||
|
||||
bt = sc->sc_bt;
|
||||
bt->bt_addr = 0x01 << 24; /* set background color */
|
||||
i = sc->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->sc_cursor.cc_color.cm_chip[1];
|
||||
bt->bt_omap = i; /* G */
|
||||
bt->bt_omap = i << 8; /* B */
|
||||
}
|
||||
|
||||
static void
|
||||
cg6_unblank(dev)
|
||||
struct device *dev;
|
||||
{
|
||||
struct cgsix_softc *sc = (struct cgsix_softc *)dev;
|
||||
|
||||
if (sc->sc_blanked) {
|
||||
sc->sc_blanked = 0;
|
||||
sc->sc_thc->thc_misc |= THC_MISC_VIDEN;
|
||||
}
|
||||
}
|
||||
|
||||
/* XXX the following should be moved to a "user interface" header */
|
||||
/*
|
||||
* Base addresses at which users can mmap() the various pieces of a cg6.
|
||||
* Note that although the Brooktree color registers do not occupy 8K,
|
||||
* the X server dies if we do not allow it to map 8K there (it just maps
|
||||
* from 0x70000000 forwards, as a contiguous chunk).
|
||||
*/
|
||||
#define CG6_USER_FBC 0x70000000
|
||||
#define CG6_USER_TEC 0x70001000
|
||||
#define CG6_USER_BTREGS 0x70002000
|
||||
#define CG6_USER_FHC 0x70004000
|
||||
#define CG6_USER_THC 0x70005000
|
||||
#define CG6_USER_ROM 0x70006000
|
||||
#define CG6_USER_RAM 0x70016000
|
||||
#define CG6_USER_DHC 0x80000000
|
||||
|
||||
struct mmo {
|
||||
u_int mo_uaddr; /* user (virtual) address */
|
||||
u_int mo_size; /* size, or 0 for video ram size */
|
||||
u_int mo_physoff; /* offset from sc_physadr */
|
||||
};
|
||||
|
||||
/*
|
||||
* Return the address that would map the given device at the given
|
||||
* offset, allowing for the given protection, or return -1 for error.
|
||||
*
|
||||
* XXX needs testing against `demanding' applications (e.g., aviator)
|
||||
*/
|
||||
int
|
||||
cgsixmap(dev, off, prot)
|
||||
dev_t dev;
|
||||
int off, prot;
|
||||
{
|
||||
register struct cgsix_softc *sc = cgsixcd.cd_devs[minor(dev)];
|
||||
register struct mmo *mo;
|
||||
register u_int u, sz;
|
||||
#define O(memb) ((u_int)(&((struct cg6_layout *)0)->memb))
|
||||
static struct mmo mmo[] = {
|
||||
{ CG6_USER_RAM, 0, O(cg6_ram) },
|
||||
|
||||
/* do not actually know how big most of these are! */
|
||||
{ CG6_USER_FBC, 1, O(cg6_fbc_un) },
|
||||
{ CG6_USER_TEC, 1, O(cg6_tec_un) },
|
||||
{ CG6_USER_BTREGS, 8192 /* XXX */, O(cg6_bt_un) },
|
||||
{ CG6_USER_FHC, 1, O(cg6_fhc_un) },
|
||||
{ CG6_USER_THC, sizeof(struct cg6_thc), O(cg6_thc_un) },
|
||||
{ CG6_USER_ROM, 65536, O(cg6_rom_un) },
|
||||
{ CG6_USER_DHC, 1, O(cg6_dhc_un) },
|
||||
};
|
||||
#define NMMO (sizeof mmo / sizeof *mmo)
|
||||
|
||||
if (off & PGOFSET)
|
||||
panic("cgsixmap");
|
||||
|
||||
/*
|
||||
* Entries with size 0 map video RAM (i.e., the size in fb data).
|
||||
*
|
||||
* Since we work in pages, the fact that the map offset table's
|
||||
* sizes are sometimes bizarre (e.g., 1) is effectively ignored:
|
||||
* one byte is as good as one page.
|
||||
*/
|
||||
for (mo = mmo; mo < &mmo[NMMO]; mo++) {
|
||||
if ((u_int)off < mo->mo_uaddr)
|
||||
continue;
|
||||
u = off - mo->mo_uaddr;
|
||||
sz = mo->mo_size ? mo->mo_size : sc->sc_fb.fb_type.fb_size;
|
||||
if (u < sz)
|
||||
return ((int)sc->sc_physadr + u + mo->mo_physoff +
|
||||
PMAP_OBIO + PMAP_NC);
|
||||
}
|
||||
#ifdef DEBUG
|
||||
{
|
||||
register struct proc *p = curproc; /* XXX */
|
||||
log(LOG_NOTICE, "cgsixmap(%x) (%s[%d])\n", off, p->p_comm, p->p_pid);
|
||||
}
|
||||
#endif
|
||||
return (-1); /* not a user-map offset */
|
||||
}
|
||||
164
sys/arch/sparc/sbus/cgsixreg.h
Normal file
164
sys/arch/sparc/sbus/cgsixreg.h
Normal file
@ -0,0 +1,164 @@
|
||||
/*
|
||||
* 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.
|
||||
*
|
||||
* %W% (Berkeley) %G%
|
||||
*
|
||||
* from: Header: cgsixreg.h,v 1.1 93/10/12 15:29:24 torek Exp
|
||||
* $Id: cgsixreg.h,v 1.1 1993/11/11 03:36:54 deraadt Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
* CG6 display registers. (Note, I got tired of writing `cgsix' about
|
||||
* halfway through and changed everything to cg6, but I probably missed
|
||||
* some. Unfortunately, the way config works, we need to spell out `six'
|
||||
* in some places anyway.)
|
||||
*
|
||||
* The cg6 is a complicated beastie. We have been unable to extract any
|
||||
* documentation and most of the following are guesses based on a limited
|
||||
* amount of reverse engineering.
|
||||
*
|
||||
* A cg6 is composed of numerous groups of control registers, all with TLAs:
|
||||
* FBC - frame buffer control?
|
||||
* FHC - fbc hardware configuration?
|
||||
* DHC - ???
|
||||
* TEC - transform engine control?
|
||||
* THC - TEC Hardware Configuration (this is where our action goes)
|
||||
* ROM - a 64Kbyte ROM with who knows what in it.
|
||||
* colormap - see below
|
||||
* frame buffer memory (video RAM)
|
||||
* possible other stuff
|
||||
*
|
||||
* Like the cg3, the cg6 uses a Brooktree Video DAC (see btreg.h).
|
||||
*/
|
||||
|
||||
/*
|
||||
* The layout of the THC.
|
||||
*/
|
||||
struct cg6_thc {
|
||||
u_int thc_xxx0[512]; /* ??? */
|
||||
u_int thc_hsync1; /* horizontal sync timing */
|
||||
u_int thc_hsync2; /* more hsync timing */
|
||||
u_int thc_hsync3; /* yet more hsync timing */
|
||||
u_int thc_vsync1; /* vertical sync timing */
|
||||
u_int thc_vsync2; /* only two of these */
|
||||
u_int thc_refresh; /* refresh counter */
|
||||
u_int thc_misc; /* miscellaneous control & status */
|
||||
u_int thc_xxx1[56]; /* ??? */
|
||||
u_int thc_cursxy; /* cursor x,y position (16 bits each) */
|
||||
u_int thc_cursmask[32]; /* cursor mask bits */
|
||||
u_int thc_cursbits[32]; /* what to show where mask enabled */
|
||||
};
|
||||
|
||||
/* bits in thc_misc */
|
||||
#define THC_MISC_XXX0 0xfff00000 /* unused */
|
||||
#define THC_MISC_REVMASK 0x000f0000 /* cg6 revision? */
|
||||
#define THC_MISC_REVSHIFT 16
|
||||
#define THC_MISC_XXX1 0x0000e000 /* unused */
|
||||
#define THC_MISC_RESET 0x00001000 /* ??? */
|
||||
#define THC_MISC_XXX2 0x00000800 /* unused */
|
||||
#define THC_MISC_VIDEN 0x00000400 /* video enable */
|
||||
#define THC_MISC_SYNC 0x00000200 /* not sure what ... */
|
||||
#define THC_MISC_VSYNC 0x00000100 /* ... these really are */
|
||||
#define THC_MISC_SYNCEN 0x00000080 /* sync enable */
|
||||
#define THC_MISC_CURSRES 0x00000040 /* cursor resolution */
|
||||
#define THC_MISC_INTEN 0x00000020 /* v.retrace intr enable */
|
||||
#define THC_MISC_INTR 0x00000010 /* intr pending / ack bit */
|
||||
#define THC_MISC_XXX 0x0000000f /* ??? */
|
||||
|
||||
/* cursor x / y position value for `off' */
|
||||
#define THC_CURSOFF (65536-32) /* i.e., USHRT_MAX+1-32 */
|
||||
|
||||
/*
|
||||
* This structure exists only to compute the layout of the CG6
|
||||
* hardware. Each of the individual substructures lives on a
|
||||
* separate `page' (where a `page' is at least 4K), and many are
|
||||
* very far apart. We avoid large offsets (which make for lousy
|
||||
* code) by using pointers to the individual interesting pieces,
|
||||
* and map them in independently (to avoid using up PTEs unnecessarily).
|
||||
*/
|
||||
struct cg6_layout {
|
||||
/* ROM at 0 */
|
||||
union {
|
||||
long un_id; /* ID = ?? */
|
||||
char un_rom[65536]; /* 64K rom */
|
||||
char un_pad[0x200000];
|
||||
} cg6_rom_un;
|
||||
|
||||
/* Brooktree DAC at 0x200000 */
|
||||
union {
|
||||
struct bt_regs un_btregs;
|
||||
char un_pad[0x040000];
|
||||
} cg6_bt_un;
|
||||
|
||||
/* DHC, whatever that is, at 0x240000 */
|
||||
union {
|
||||
char un_pad[0x40000];
|
||||
} cg6_dhc_un;
|
||||
|
||||
/* ALT, whatever that is, at 0x280000 */
|
||||
union {
|
||||
char un_pad[0x80000];
|
||||
} cg6_alt_un;
|
||||
|
||||
/* FHC, whatever that is, at 0x300000 */
|
||||
union {
|
||||
char un_pad[0x1000];
|
||||
} cg6_fhc_un;
|
||||
|
||||
/* THC at 0x301000 */
|
||||
union {
|
||||
struct cg6_thc un_thc;
|
||||
char un_pad[0x400000 - 0x1000];
|
||||
} cg6_thc_un;
|
||||
|
||||
/* FBC at 0x700000 */
|
||||
union {
|
||||
char un_pad[0x1000];
|
||||
} cg6_fbc_un;
|
||||
|
||||
/* TEC at 0x701000 */
|
||||
union {
|
||||
char un_pad[0x100000 - 0x1000];
|
||||
} cg6_tec_un;
|
||||
|
||||
/* Video RAM at 0x800000 */
|
||||
char cg6_ram[1024 * 1024]; /* approx.? */
|
||||
};
|
||||
@ -39,16 +39,18 @@
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)cgthree.c 8.1 (Berkeley) 6/11/93
|
||||
* %W% (Berkeley) %G%
|
||||
*
|
||||
* from: Header: cgthree.c,v 1.6 92/11/26 02:28:06 torek Exp
|
||||
* $Id: cgthree.c,v 1.2 1993/10/11 02:45:51 deraadt Exp $
|
||||
* from: Header: cgthree.c,v 1.8 93/10/31 05:09:24 torek Exp
|
||||
* $Id: cgthree.c,v 1.3 1993/11/11 03:36:55 deraadt Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
* color display (cgthree) driver.
|
||||
*
|
||||
* Does not handle interrupts, even though they can occur.
|
||||
*
|
||||
* XXX should defer colormap updates to vertical retrace interrupts
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
@ -64,23 +66,20 @@
|
||||
#include <machine/pmap.h>
|
||||
#include <machine/fbvar.h>
|
||||
|
||||
#include <sparc/sbus/btreg.h>
|
||||
#include <sparc/sbus/btvar.h>
|
||||
#include <sparc/sbus/cgthreereg.h>
|
||||
#include <sparc/sbus/sbusvar.h>
|
||||
|
||||
union colormap {
|
||||
u_char cm_map[256][3]; /* 256 R/G/B entries */
|
||||
u_int cm_chip[256 * 3 / 4]; /* the way the chip gets loaded */
|
||||
};
|
||||
|
||||
/* per-display variables */
|
||||
struct cgthree_softc {
|
||||
struct device sc_dev; /* base device */
|
||||
struct sbusdev sc_sd; /* sbus device */
|
||||
struct fbdevice sc_fb; /* frame buffer device */
|
||||
volatile struct cgthreereg *sc_reg;/* control registers */
|
||||
volatile struct bt_regs *sc_bt; /* Brooktree registers */
|
||||
caddr_t sc_phys; /* display RAM (phys addr) */
|
||||
int sc_blanked; /* true if blanked */
|
||||
union colormap sc_cmap; /* current color map */
|
||||
union bt_cmap sc_cmap; /* Brooktree color map */
|
||||
};
|
||||
|
||||
/* autoconfiguration driver */
|
||||
@ -89,11 +88,6 @@ struct cfdriver cgthreecd =
|
||||
{ NULL, "cgthree", matchbyname, cgthreeattach,
|
||||
DV_DULL, sizeof(struct cgthree_softc) };
|
||||
|
||||
/*
|
||||
* XXX we do not handle frame buffer interrupts (do not know how) ... we
|
||||
* need these to do color map loading at vertical retrace time!
|
||||
*/
|
||||
|
||||
/* frame buffer generic driver */
|
||||
static void cgthreeunblank(struct device *);
|
||||
static struct fbdriver cgthreefbdriver = { cgthreeunblank };
|
||||
@ -103,9 +97,8 @@ extern struct tty *fbconstty;
|
||||
extern int (*v_putc)();
|
||||
extern int nullop();
|
||||
static int cgthree_cnputc();
|
||||
#ifdef notdef
|
||||
static struct cgthree_softc *bwcons;
|
||||
#endif
|
||||
|
||||
static void cgthreeloadcmap __P((struct cgthree_softc *, int, int));
|
||||
|
||||
#define CGTHREE_MAJOR 55 /* XXX */
|
||||
|
||||
@ -120,7 +113,7 @@ cgthreeattach(parent, self, args)
|
||||
register struct cgthree_softc *sc = (struct cgthree_softc *)self;
|
||||
register struct sbus_attach_args *sa = args;
|
||||
register int node = sa->sa_ra.ra_node, ramsize, i;
|
||||
register volatile struct cgthreereg *cg3;
|
||||
register volatile struct bt_regs *bt;
|
||||
register struct cgthree_all *p;
|
||||
int isconsole;
|
||||
|
||||
@ -155,15 +148,19 @@ cgthreeattach(parent, self, args)
|
||||
/* this probably cannot happen, but what the heck */
|
||||
sc->sc_fb.fb_pixels = mapiodev(p->ba_ram, ramsize);
|
||||
}
|
||||
sc->sc_reg = cg3 = (volatile struct cgthreereg *)
|
||||
mapiodev((caddr_t)&p->ba_reg, sizeof(p->ba_reg));
|
||||
sc->sc_bt = bt = (volatile struct bt_regs *)
|
||||
mapiodev((caddr_t)&p->ba_btreg, sizeof(p->ba_btreg));
|
||||
sc->sc_phys = p->ba_ram;
|
||||
|
||||
/* grab initial (current) color map, then set video */
|
||||
cg3->cg3_addr = 0;
|
||||
/* grab initial (current) color map */
|
||||
bt->bt_addr = 0;
|
||||
for (i = 0; i < 256 * 3 / 4; i++)
|
||||
sc->sc_cmap.cm_chip[i] = cg3->cg3_cmap;
|
||||
cgthreeunblank(&sc->sc_dev);
|
||||
sc->sc_cmap.cm_chip[i] = bt->bt_cmap;
|
||||
/* make sure we are not blanked (see cgthreeunblank) */
|
||||
bt->bt_addr = 0x06; /* command reg */
|
||||
bt->bt_ctrl = 0x73; /* overlay plane */
|
||||
bt->bt_addr = 0x04; /* read mask */
|
||||
bt->bt_ctrl = 0xff; /* color planes */
|
||||
|
||||
if (isconsole) {
|
||||
printf(" (console)\n");
|
||||
@ -204,12 +201,13 @@ int
|
||||
cgthreeioctl(dev, cmd, data, flags, p)
|
||||
dev_t dev;
|
||||
int cmd;
|
||||
caddr_t data;
|
||||
register caddr_t data;
|
||||
int flags;
|
||||
struct proc *p;
|
||||
{
|
||||
register struct cgthree_softc *sc = cgthreecd.cd_devs[minor(dev)];
|
||||
register struct fbgattr *fba;
|
||||
int error;
|
||||
|
||||
switch (cmd) {
|
||||
|
||||
@ -229,58 +227,19 @@ cgthreeioctl(dev, cmd, data, flags, p)
|
||||
fba->emu_types[1] = -1;
|
||||
break;
|
||||
|
||||
case FBIOGETCMAP: {
|
||||
register struct fbcmap *p = (struct fbcmap *)data;
|
||||
register int i, color, count, error;
|
||||
register u_char *cp;
|
||||
case FBIOGETCMAP:
|
||||
return (bt_getcmap((struct fbcmap *)data, &sc->sc_cmap, 256));
|
||||
|
||||
/* get color map from software copy */
|
||||
if ((unsigned)(color = p->index) >= 256 ||
|
||||
(unsigned)(count = p->count) > 256 - color)
|
||||
return (EINVAL);
|
||||
if (!useracc(p->red, count, B_WRITE) ||
|
||||
!useracc(p->green, count, B_WRITE) ||
|
||||
!useracc(p->blue, count, B_WRITE))
|
||||
return (EFAULT);
|
||||
cp = &sc->sc_cmap.cm_map[color][0];
|
||||
for (i = 0; i < count; cp += 3, i++) {
|
||||
p->red[i] = cp[0];
|
||||
p->green[i] = cp[1];
|
||||
p->blue[i] = cp[2];
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case FBIOPUTCMAP: {
|
||||
register struct fbcmap *p = (struct fbcmap *)data;
|
||||
register int i, color, count, error;
|
||||
register u_char *cp;
|
||||
register u_int *ip;
|
||||
|
||||
/* update software copy */
|
||||
if ((unsigned)(color = p->index) >= 256 ||
|
||||
(unsigned)(count = p->count) > 256 - color)
|
||||
return (EINVAL);
|
||||
if (!useracc(p->red, count, B_READ) ||
|
||||
!useracc(p->green, count, B_READ) ||
|
||||
!useracc(p->blue, count, B_READ))
|
||||
return (EFAULT);
|
||||
cp = &sc->sc_cmap.cm_map[color][0];
|
||||
for (i = 0; i < count; cp += 3, i++) {
|
||||
cp[0] = p->red[i];
|
||||
cp[1] = p->green[i];
|
||||
cp[2] = p->blue[i];
|
||||
}
|
||||
/* then blast them into the chip */
|
||||
case FBIOPUTCMAP:
|
||||
/* copy to software map */
|
||||
#define p ((struct fbcmap *)data)
|
||||
error = bt_putcmap(p, &sc->sc_cmap, 256);
|
||||
if (error)
|
||||
return (error);
|
||||
/* now blast them into the chip */
|
||||
/* XXX should use retrace interrupt */
|
||||
#define D4M3(x) ((((x) >> 2) << 1) + ((x) >> 2)) /* (x / 4) * 3 */
|
||||
#define D4M4(x) ((x) & ~3) /* (x / 4) * 4 */
|
||||
ip = &sc->sc_cmap.cm_chip[D4M3(color)];
|
||||
count = D4M3(color + count - 1) - D4M3(color) + 3;
|
||||
sc->sc_reg->cg3_addr = D4M4(color);
|
||||
while (--count >= 0)
|
||||
sc->sc_reg->cg3_cmap = *ip++;
|
||||
}
|
||||
cgthreeloadcmap(sc, p->index, p->count);
|
||||
#undef p
|
||||
break;
|
||||
|
||||
case FBIOGVIDEO:
|
||||
@ -290,17 +249,22 @@ cgthreeioctl(dev, cmd, data, flags, p)
|
||||
case FBIOSVIDEO:
|
||||
if (*(int *)data)
|
||||
cgthreeunblank(&sc->sc_dev);
|
||||
else {
|
||||
register volatile struct cgthreereg *cg3 = sc->sc_reg;
|
||||
else if (!sc->sc_blanked) {
|
||||
register volatile struct bt_regs *bt;
|
||||
|
||||
bt = sc->sc_bt;
|
||||
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;
|
||||
|
||||
sc->sc_blanked = 1;
|
||||
cg3->cg3_addr = 0x06; /* command reg */
|
||||
cg3->cg3_ctrl = 0x70; /* overlay plane */
|
||||
cg3->cg3_addr = 0x04; /* read mask */
|
||||
cg3->cg3_ctrl = 0x00; /* color planes */
|
||||
/* set color 0 to black; scribble on R of color 1 */
|
||||
cg3->cg3_addr = 0;
|
||||
cg3->cg3_cmap = 0;
|
||||
}
|
||||
break;
|
||||
|
||||
@ -310,21 +274,49 @@ cgthreeioctl(dev, cmd, data, flags, p)
|
||||
return (0);
|
||||
}
|
||||
|
||||
/*
|
||||
* Undo the effect of an FBIOSVIDEO that turns the video off.
|
||||
*/
|
||||
static void
|
||||
cgthreeunblank(dev)
|
||||
struct device *dev;
|
||||
{
|
||||
struct cgthree_softc *sc = (struct cgthree_softc *)dev;
|
||||
register volatile struct cgthreereg *cg3 = sc->sc_reg;
|
||||
register volatile struct bt_regs *bt;
|
||||
|
||||
sc->sc_blanked = 0;
|
||||
cg3->cg3_addr = 0x06; /* command reg */
|
||||
cg3->cg3_ctrl = 0x73; /* overlay plane */
|
||||
cg3->cg3_addr = 0x04; /* read mask */
|
||||
cg3->cg3_ctrl = 0xff; /* color planes */
|
||||
/* restore color 0 and R of color 1 */
|
||||
cg3->cg3_addr = 0;
|
||||
cg3->cg3_cmap = sc->sc_cmap.cm_chip[0];
|
||||
if (sc->sc_blanked) {
|
||||
sc->sc_blanked = 0;
|
||||
bt = sc->sc_bt;
|
||||
/* restore color 0 (and R of color 1) */
|
||||
bt->bt_addr = 0;
|
||||
bt->bt_cmap = sc->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 */
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Load a subset of the current (new) colormap into the Brooktree DAC.
|
||||
*/
|
||||
static void
|
||||
cgthreeloadcmap(sc, start, ncolors)
|
||||
register struct cgthree_softc *sc;
|
||||
register int start, ncolors;
|
||||
{
|
||||
register volatile struct bt_regs *bt;
|
||||
register u_int *ip;
|
||||
register int count;
|
||||
|
||||
ip = &sc->sc_cmap.cm_chip[BT_D4M3(start)]; /* start/4 * 3 */
|
||||
count = BT_D4M3(start + ncolors - 1) - BT_D4M3(start) + 3;
|
||||
bt = sc->sc_bt;
|
||||
bt->bt_addr = BT_D4M4(start);
|
||||
while (--count >= 0)
|
||||
bt->bt_cmap = *ip++;
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
@ -39,45 +39,16 @@
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)cgthreereg.h 8.1 (Berkeley) 6/11/93
|
||||
* @(#)cgthreereg.h 8.1 (Berkeley) 6/11/93
|
||||
*
|
||||
* from: Header: cgthreereg.h,v 1.5 92/11/26 02:28:07 torek Exp
|
||||
* $Id: cgthreereg.h,v 1.1 1993/10/02 10:23:48 deraadt Exp $
|
||||
* from: $Header: /cvsroot/src/sys/arch/sparc/sbus/Attic/cgthreereg.h,v 1.2 1993/11/11 03:36:56 deraadt Exp $
|
||||
* $Id: cgthreereg.h,v 1.2 1993/11/11 03:36:56 deraadt Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
* cgthree display registers.
|
||||
*
|
||||
* The registers start at offset 0x400000 and repeat every 32 bytes
|
||||
* (presumably only the low order address lines are decoded). Video RAM
|
||||
* starts at offset 0x800000. We use separate pointers to each so that
|
||||
* the sparc addressing modes work well.
|
||||
*
|
||||
* The cg3 has a Brooktree Bt458 (?) chip to do everything (Brooktree
|
||||
* makes the only decent color frame buffer chips). To update the
|
||||
* color map one would normally do byte writes, but the hardware
|
||||
* takes longword writes. Since there are three registers for each
|
||||
* color map entry (R, then G, then B), we have to set color 1 with
|
||||
* a write to address 0 (setting 0's R/G/B and color 1's R) followed
|
||||
* by a second write to address 1 (setting color 1's G/B and color 2's
|
||||
* R/G). Software must therefore keep a copy of the current map.
|
||||
*
|
||||
* The colormap address register increments automatically, so the above
|
||||
* write is done as:
|
||||
*
|
||||
* p->cg3_cadr = 0;
|
||||
* p->cg3_cmap = R0G0B0R1;
|
||||
* p->cg3_cmap = G1B1R2G2;
|
||||
*
|
||||
* Yow!
|
||||
* cgthree display registers. Much like bwtwo registers, except that
|
||||
* there is a Brooktree Video DAC in there (so we also use btreg.h).
|
||||
*/
|
||||
struct cgthreereg {
|
||||
u_int cg3_addr; /* ?any? address register */
|
||||
u_int cg3_cmap; /* colormap data register */
|
||||
u_int cg3_ctrl; /* control register */
|
||||
u_int cg3_omap; /* overlay map register */
|
||||
char cg3_xxx0[16]; /* ? (make same size as bwtwo) */
|
||||
};
|
||||
|
||||
/* offsets */
|
||||
#define CG3REG_ID 0
|
||||
@ -88,7 +59,7 @@ struct cgthreereg {
|
||||
struct cgthree_all {
|
||||
long ba_id; /* ID = 0xfe010104 on my IPC */
|
||||
char ba_xxx0[0x400000-4];
|
||||
struct cgthreereg ba_reg; /* control registers */
|
||||
char ba_xxx1[0x400000-32];
|
||||
struct bt_regs ba_btreg; /* Brooktree registers */
|
||||
char ba_xxx1[0x400000-sizeof(struct bt_regs)];
|
||||
char ba_ram[4096]; /* actually larger */
|
||||
};
|
||||
|
||||
Loading…
Reference in New Issue
Block a user