File: [local] / sys / arch / hp300 / stand / common / apci.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:05:31 2008 UTC (16 years, 4 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: apci.c,v 1.8 2006/08/17 06:31:10 miod Exp $ */
/* $NetBSD: apci.c,v 1.2 1997/10/04 17:20:15 thorpej Exp $ */
/*-
* Copyright (c) 1997, 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* 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 NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* 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.
*
* @(#)dca.c 8.1 (Berkeley) 6/10/93
*/
#ifdef APCICONSOLE
#include <sys/param.h>
#include <hp300/dev/frodoreg.h> /* for APCI offsets */
#include <hp300/dev/apcireg.h> /* for register map */
#include <hp300/dev/dcareg.h> /* for register bits */
#include "samachdep.h"
#include "consdefs.h"
struct apciregs *apcicnaddr = 0;
void
apciprobe(struct consdev *cp)
{
volatile u_int8_t *frodoregs;
/*
* Only a 425e can have an APCI console. On all other 4xx models,
* the "first" serial port is mapped to the DCA at select code 9.
*/
if (machineid != HP_425 || mmuid != MMUID_425_E)
return;
/*
* Check the service switch. On the 425e, this is a physical
* switch, unlike other frodo-based machines, so we can use it
* as a serial vs internal video selector, since the PROM can not
* be configured for serial console.
*/
frodoregs = (volatile u_int8_t *)IIOV(FRODO_BASE);
if (badaddr((caddr_t)frodoregs) == 0 &&
(frodoregs[FRODO_IISR] & FRODO_IISR_SERVICE) == 0)
cp->cn_pri = CN_REMOTE;
else
cp->cn_pri = CN_NORMAL;
}
void
apciinit(struct consdev *cp)
{
struct apciregs *apci = (struct apciregs *)apcicnaddr;
apci->ap_cfcr = CFCR_DLAB;
apci->ap_data = APCIBRD(9600) & 0xff;
apci->ap_ier = (APCIBRD(9600) >> 8) & 0xff;
apci->ap_cfcr = CFCR_8BITS;
apci->ap_fifo =
FIFO_ENABLE | FIFO_RCV_RST | FIFO_XMT_RST | FIFO_TRIGGER_1;
apci->ap_mcr = MCR_DTR | MCR_RTS;
}
/* ARGSUSED */
int
apcigetchar(dev_t dev)
{
#ifndef SMALL
struct apciregs *apci = apcicnaddr;
short stat;
int c;
if (((stat = apci->ap_lsr) & LSR_RXRDY) == 0)
return (0);
c = apci->ap_data;
return (c);
#else
return (0);
#endif
}
/* ARGSUSED */
void
apciputchar(dev_t dev, int c)
{
struct apciregs *apci = apcicnaddr;
int timo;
short stat;
/* wait a reasonable time for the transmitter to come ready */
timo = 50000;
while (((stat = apci->ap_lsr) & LSR_TXRDY) == 0 && --timo)
;
apci->ap_data = c;
/* wait for this transmission to complete */
timo = 1000000;
while (((stat = apci->ap_lsr) & LSR_TXRDY) == 0 && --timo)
;
}
#endif