File: [local] / sys / arch / sparc / dev / bt_subr.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:08:02 2008 UTC (16 years, 3 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
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/* $OpenBSD: bt_subr.c,v 1.9 2003/06/02 23:27:53 millert Exp $ */
/* $NetBSD: bt_subr.c,v 1.5 1996/03/14 19:44:32 christos Exp $ */
/*
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)bt_subr.c 8.2 (Berkeley) 1/21/94
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/errno.h>
#include <uvm/uvm_extern.h>
#include <dev/wscons/wsconsio.h>
#include <sparc/dev/btreg.h>
#include <sparc/dev/btvar.h>
/*
* Common code for dealing with Brooktree video DACs.
*/
int
bt_getcmap(bcm, rcm)
union bt_cmap *bcm;
struct wsdisplay_cmap *rcm;
{
u_int index = rcm->index, count = rcm->count, i;
int error;
if (index >= 256 || count > 256 - index)
return (EINVAL);
for (i = 0; i < count; i++) {
if ((error = copyout(&bcm->cm_map[index + i][0],
&rcm->red[i], 1)) != 0)
return (error);
if ((error = copyout(&bcm->cm_map[index + i][1],
&rcm->green[i], 1)) != 0)
return (error);
if ((error = copyout(&bcm->cm_map[index + i][2],
&rcm->blue[i], 1)) != 0)
return (error);
}
return (0);
}
int
bt_putcmap(bcm, rcm)
union bt_cmap *bcm;
struct wsdisplay_cmap *rcm;
{
u_int index = rcm->index, count = rcm->count, i;
int error;
if (index >= 256 || count > 256 - index)
return (EINVAL);
for (i = 0; i < count; i++) {
if ((error = copyin(&rcm->red[i],
&bcm->cm_map[index + i][0], 1)) != 0)
return (error);
if ((error = copyin(&rcm->green[i],
&bcm->cm_map[index + i][1], 1)) != 0)
return (error);
if ((error = copyin(&rcm->blue[i],
&bcm->cm_map[index + i][2], 1)) != 0)
return (error);
}
return (0);
}
void
bt_loadcmap(cm, bt, start, ncolors, cgsix)
union bt_cmap *cm;
volatile struct bt_regs *bt;
u_int start, ncolors;
int cgsix;
{
u_int *ip, i;
int count;
ip = &cm->cm_chip[BT_D4M3(start)]; /* start/4 * 3 */
count = BT_D4M3(start + ncolors - 1) - BT_D4M3(start) + 3;
if (cgsix) {
/* hardware that makes one want to pound boards with hammers */
bt->bt_addr = BT_D4M4(start) << 24;
while (--count >= 0) {
i = *ip++;
bt->bt_cmap = i;
bt->bt_cmap = i << 8;
bt->bt_cmap = i << 16;
bt->bt_cmap = i << 24;
}
} else {
bt->bt_addr = BT_D4M4(start);
while (--count >= 0)
bt->bt_cmap = *ip++;
}
}
void
bt_setcolor(cm, bt, index, r, g, b, cgsix)
union bt_cmap *cm;
volatile struct bt_regs *bt;
u_int index;
u_int8_t r, g, b;
int cgsix;
{
cm->cm_map[index][0] = r;
cm->cm_map[index][1] = g;
cm->cm_map[index][2] = b;
bt_loadcmap(cm, bt, index, 1, cgsix);
}