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Initial pass a ARC BIOS code that can be shared between the sgimips

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and arc ports.
This commit is contained in:
thorpej 2001-07-08 19:58:02 +00:00
parent b86053cc53
commit e379ce3db0
4 changed files with 800 additions and 0 deletions
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105
sys/dev/arcbios/arcbios.c Normal file
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/* $NetBSD: arcbios.c,v 1.1 2001/07/08 19:58:02 thorpej Exp $ */
/*-
* Copyright (c) 2001 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.
*/
#include <sys/param.h>
#include <dev/cons.h>
#include <dev/arcbios/arcbios.h>
#include <dev/arcbios/arcbiosvar.h>
const struct arcbios_spb *ARCBIOS_SPB;
const struct arcbios_fv *ARCBIOS;
int arcbios_cngetc(dev_t);
void arcbios_cnputc(dev_t, int);
struct consdev arcbios_cn = {
NULL, NULL, arcbios_cngetc, arcbios_cnputc, nullcnpollc, NULL,
NODEV, CN_NORMAL,
};
/*
* arcbios_init:
*
* Initialize the ARC BIOS.
*/
int
arcbios_init(vaddr_t pblkva)
{
ARCBIOS_SPB = (struct arcbios_spb *) pblkva;
switch (ARCBIOS_SPB->SPBSignature) {
case ARCBIOS_SPB_SIGNATURE:
case ARCBIOS_SPB_SIGNATURE_1:
/* Okay. */
break;
default:
/* Don't know what this is. */
return (1);
}
/* Initialize our pointer to the firmware vector. */
ARCBIOS = ARCBIOS_SPB->FirmwareVector;
/* Initialize the bootstrap console. */
cn_tab = &arcbios_cn;
return (0);
}
int
arcbios_cngetc(dev_t dev)
{
uint32_t count;
char c;
(*ARCBIOS->Read)(ARCBIOS_STDIN, &c, 1, &count);
return (c);
}
void
arcbios_cnputc(dev_t dev, int c)
{
uint32_t count;
char ch = c;
(*ARCBIOS->Write)(ARCBIOS_STDOUT, &ch, 1, &count);
}

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sys/dev/arcbios/arcbios.h Normal file
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/* $NetBSD: arcbios.h,v 1.1 2001/07/08 19:58:02 thorpej Exp $ */
/*-
* Copyright (c) 2001 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.
*/
/*
* The ARC BIOS (which is similar, but not 100% compatible with SGI ARCS)
* specification can be found at:
*
* http://www.microsoft.com/hwdev/download/respec/riscspec.zip
*/
#define ARCBIOS_STDIN 0
#define ARCBIOS_STDOUT 1
#define ARCBIOS_PAGESIZE 4096
/* ARC BIOS status codes. */
#define ARCBIOS_ESUCCESS 0 /* Success */
#define ARCBIOS_E2BIG 1 /* argument list too long */
#define ARCBIOS_EACCES 2 /* permission denied */
#define ARCBIOS_EAGAIN 3 /* resource temporarily unavailable */
#define ARCBIOS_EBADF 4 /* bad file number */
#define ARCBIOS_EBUSY 5 /* device or resource busy */
#define ARCBIOS_EFAULT 6 /* bad address */
#define ARCBIOS_EINVAL 7 /* invalid argument */
#define ARCBIOS_EIO 8 /* I/O error */
#define ARCBIOS_EISDIR 9 /* is a directory */
#define ARCBIOS_EMFILE 10 /* too many open files */
#define ARCBIOS_EMLINK 11 /* too many links */
#define ARCBIOS_ENAMETOOLONG 12 /* file name too long */
#define ARCBIOS_ENODEV 13 /* no such device */
#define ARCBIOS_ENOENT 14 /* no such file or directory */
#define ARCBIOS_ENOEXEC 15 /* exec format error */
#define ARCBIOS_ENOMEM 16 /* out of memory */
#define ARCBIOS_ENOSPC 17 /* no space left on device */
#define ARCBIOS_ENOTDIR 18 /* not a directory */
#define ARCBIOS_ENOTTY 19 /* not a typewriter */
#define ARCBIOS_ENXIO 20 /* media not loaded */
#define ARCBIOS_EROFS 21 /* read-only file system */
#if defined(sgimips)
#define ARCBIOS_EADDRNOTAVAIL 31 /* address not available */
#define ARCBIOS_ETIMEDOUT 32 /* operation timed out */
#define ARCBIOS_ECONNABORTED 33 /* connection aborted */
#define ARCBIOS_ENOCONNECT 34 /* not connected */
#endif /* sgimips */
/*
* 4.2.2: System Parameter Block
*/
struct arcbios_spb {
uint32_t SPBSignature;
uint32_t SPBLength;
uint16_t Version;
uint16_t Revision;
void *RestartBlock;
void *DebugBlock;
void *GEVector;
void *UTLBMissVector;
uint32_t FirmwareVectorLength;
void *FirmwareVector;
uint32_t PrivateVectorLength;
void *PrivateVector;
uint32_t AdapterCount;
uint32_t AdapterType;
uint32_t AdapterVectorLength;
void *AdapterVector;
};
#define ARCBIOS_SPB_SIGNATURE 0x53435241 /* A R C S */
#define ARCBIOS_SPB_SIGNATURE_1 0x41524353 /* S C R A */
/*
* 4.2.5: System Configuration Data
*/
struct arcbios_component {
uint32_t Class;
uint32_t Type;
uint32_t Flags;
uint16_t Version;
uint16_t Revision;
uint32_t Key;
uint32_t AffinityMask;
uint32_t ConfigurationDataSize;
uint32_t IdentifierLength;
char *Identifier;
};
/* Component Class */
#define COMPONENT_CLASS_SystemClass 0
#define COMPONENT_CLASS_ProcessorClass 1
#define COMPONENT_CLASS_CacheClass 2
#define COMPONENT_CLASS_AdapterClass 3
#define COMPONENT_CLASS_ControllerClass 4
#define COMPONENT_CLASS_PeripheralClass 5
#define COMPONENT_CLASS_MemoryClass 6
/* System Class */
#define COMPONENT_TYPE_ARC 0
/* Processor Class */
#define COMPONENT_TYPE_CPU 1
#define COMPONENT_TYPE_FPU 2
/* Cache Class */
#define COMPONENT_TYPE_PrimaryICache 3
#define COMPONENT_TYPE_PrimaryDCache 4
#define COMPONENT_TYPE_SecondaryICache 5
#define COMPONENT_TYPE_SecondaryDCache 6
#define COMPONENT_TYPE_SecondaryCache 7
/* Adapter Class */
#define COMPONENT_TYPE_EISAAdapter 8
#define COMPONENT_TYPE_TCAdapter 9
#define COMPONENT_TYPE_SCSIAdapter 10
#define COMPONENT_TYPE_DTIAdapter 11
#define COMPONENT_TYPE_MultiFunctionAdapter 12
/* Controller Class */
#define COMPONENT_TYPE_DiskController 13
#define COMPONENT_TYPE_TapeController 14
#define COMPONENT_TYPE_CDROMController 15
#define COMPONENT_TYPE_WORMController 16
#define COMPONENT_TYPE_SerialController 17
#define COMPONENT_TYPE_NetworkController 18
#define COMPONENT_TYPE_DisplayController 19
#define COMPONENT_TYPE_ParallelController 20
#define COMPONENT_TYPE_PointerController 21
#define COMPONENT_TYPE_KeyboardController 22
#define COMPONENT_TYPE_AudioController 23
#define COMPONENT_TYPE_OtherController 24
/* Peripheral Class */
#define COMPONENT_TYPE_DiskPeripheral 25
#define COMPONENT_TYPE_FloppyDiskPeripheral 26
#define COMPONENT_TYPE_TapePeripheral 27
#define COMPONENT_TYPE_ModemPeripheral 28
#define COMPONENT_TYPE_MonitorPeripheral 29
#define COMPONENT_TYPE_PrinterPeripheral 30
#define COMPONENT_TYPE_PointerPeripheral 31
#define COMPONENT_TYPE_KeyboardPeripheral 32
#define COMPONENT_TYPE_TerminalPeripheral 33
#define COMPONENT_TYPE_OtherPeripheral 34
#define COMPONENT_TYPE_LinePeripheral 35
#define COMPONENT_TYPE_NetworkPeripheral 36
/* Memory Class */
#define COMPONENT_TYPE_MemoryUnit 37
/* Component flags */
#define COMPONENT_FLAG_Failed 1
#define COMPONENT_FLAG_ReadOnly 2
#define COMPONENT_FLAG_Removable 4
#define COMPONENT_FLAG_ConsoleIn 8
#define COMPONENT_FLAG_ConsoleOut 16
#define COMPONENT_FLAG_Input 32
#define COMPONENT_FLAG_Output 64
/* Key for Cache: */
#define COMPONENT_KEY_Cache_CacheSize(x) \
(ARCBIOS_PAGESIZE << ((x) & 0xffff))
#define COMPONENT_KEY_Cache_LineSize(x) \
(1U << (((x) >> 16) & 0xff))
#define COMPONENT_KEY_Cache_RefillSize(x) \
(((x) >> 24) & 0xff)
/*
* ARC system ID
*/
struct arcbios_sysid {
char Vendor[8];
char Serial[8];
};
/*
* ARC memory descriptor
*/
struct arcbios_mem {
uint32_t Type;
uint32_t BasePage;
uint32_t PageCount;
};
#if defined(sgimips)
#define ARCBIOS_MEM_ExecptionBlock 0
#define ARCBIOS_MEM_SystemParameterBlock 1
#define ARCBIOS_MEM_FreeContiguous 2
#define ARCBIOS_MEM_FreeMemory 3
#define ARCBIOS_MEM_BadMemory 4
#define ARCBIOS_MEM_LoadedProgram 5
#define ARCBIOS_MEM_FirmwareTemporary 6
#define ARCBIOS_MEM_FirmwarePermanent 7
#elif defined(arc)
#define ARCBIOS_MEM_ExceptionBlock 0
#define ARCBIOS_MEM_SystemParameterBlock 1
#define ARCBIOS_MEM_FreeMemory 2
#define ARCBIOS_MEM_BadMemory 3
#define ARCBIOS_MEM_LoadedProgram 4
#define ARCBIOS_MEM_FirmwareTemporary 5
#define ARCBIOS_MEM_FirmwarePermanent 6
#define ARCBIOS_MEM_FreeContiguous 7
#endif
/*
* ARC display status
*/
struct arcbios_dsp_stat {
uint16_t CursorXPosition;
uint16_t CursorYPosition;
uint16_t CursorMaxXPosition;
uint16_t CursorMaxYPosition;
uint8_t ForegroundColor;
uint8_t BackgroundColor;
uint8_t HighIntensity;
uint8_t Underscored;
uint8_t ReverseVideo;
};
/*
* ARC firmware vector
*/
struct arcbios_fv {
uint32_t (*Load)(
char *, /* image to load */
uint32_t, /* top address */
uint32_t, /* entry address */
uint32_t *); /* low address */
uint32_t (*Invoke)(
uint32_t, /* entry address */
uint32_t, /* stack address */
uint32_t, /* argc */
char **, /* argv */
char **); /* envp */
uint32_t (*Execute)(
char *, /* image path */
uint32_t, /* argc */
char **, /* argv */
char **); /* envp */
void (*Halt)(void)
__attribute__((__noreturn__));
void (*PowerDown)(void)
__attribute__((__noreturn__));
void (*Restart)(void)
__attribute__((__noreturn__));
void (*Reboot)(void)
__attribute__((__noreturn__));
void (*EnterInteractiveMode)(void)
__attribute__((__noreturn__));
#if defined(sgimips)
void *reserved0;
#else
void (*ReturnFromMain)(void)
__attribute__((__noreturn__));
#endif
void *(*GetPeer)(
void *); /* component */
void *(*GetChild)(
void *); /* component */
void *(*GetParent)(
void *); /* component */
uint32_t (*GetConfigurationData)(
void *, /* configuration data */
void *); /* component */
void *(*AddChild)(
void *, /* component */
void *); /* new component */
uint32_t (*DeleteComponent)(
void *); /* component */
uint32_t (*GetComponent)(
char *); /* path */
uint32_t (*SaveConfiguration)(void);
void *(*GetSystemId)(void);
void *(*GetMemoryDescriptor)(
void *); /* memory descriptor */
#if defined(sgimips)
void *reserved1;
#else
void (*Signal)(
uint32_t, /* signal number */
void *); /* handler */
#endif
void *(*GetTime)(void);
uint32_t (*GetRelativeTime)(void);
uint32_t (*GetDirectoryEntry)(
uint32_t, /* file ID */
void *, /* directory entry */
uint32_t, /* length */
uint32_t *); /* count */
uint32_t (*Open)(
char *, /* path */
uint32_t, /* open mode */
uint32_t *); /* file ID */
uint32_t (*Close)(
uint32_t); /* file ID */
uint32_t (*Read)(
uint32_t, /* file ID */
void *, /* buffer */
uint32_t, /* length */
uint32_t *); /* count */
uint32_t (*GetReadStatus)(
uint32_t); /* file ID */
uint32_t (*Write)(
uint32_t, /* file ID */
void *, /* buffer */
uint32_t, /* length */
uint32_t *); /* count */
uint32_t (*Seek)(
uint32_t, /* file ID */
int64_t *, /* offset */
uint32_t); /* whence */
uint32_t (*Mount)(
char *, /* path */
uint32_t); /* operation */
char *(*GetEnvironmentVariable)(
char *); /* variable */
uint32_t (*SetEnvironmentVariable)(
char *, /* variable */
char *); /* contents */
uint32_t (*GetFileInformation)(
uint32_t, /* file ID */
void *); /* XXX */
uint32_t (*SetFileInformation)(
uint32_t, /* file ID */
uint32_t, /* XXX */
uint32_t); /* XXX */
void (*FlushAllCaches)(void);
#if !defined(sgimips)
uint32_t (*TestUnicode)(
uint32_t, /* file ID */
uint16_t); /* unicode character */
void *(*GetDisplayStatus)(
uint32_t); /* file ID */
#endif
};

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/* $NetBSD: arcbios_tty.c,v 1.1 2001/07/08 19:58:03 thorpej Exp $ */
/*
* Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#include <sys/param.h>
#include <sys/user.h>
#include <sys/uio.h>
#include <sys/systm.h>
#include <sys/callout.h>
#include <sys/kernel.h>
#include <sys/conf.h>
#include <sys/proc.h>
#include <sys/tty.h>
#include <sys/termios.h>
#include <dev/cons.h>
#include <dev/arcbios/arcbios.h>
#include <dev/arcbios/arcbiosvar.h>
struct callout arcbios_tty_ch = CALLOUT_INITIALIZER;
static struct tty *arcbios_tty[1];
extern struct consdev arcbios_cn;
void arcbios_tty_start(struct tty *);
void arcbios_tty_poll(void *);
int arcbios_tty_param(struct tty *, struct termios *);
cdev_decl(arcbios_tty);
int
arcbios_ttyopen(dev_t dev, int flag, int mode, struct proc *p)
{
int unit = minor(dev);
struct tty *tp;
int s, maj, error = 0, setuptimeout = 0;
if (unit != 0)
return (ENODEV);
s = spltty();
if (arcbios_tty[unit] == NULL) {
tp = arcbios_tty[unit] = ttymalloc();
tty_attach(tp);
} else
tp = arcbios_tty[unit];
tp->t_oproc = arcbios_tty_start;
tp->t_param = arcbios_tty_param;
tp->t_dev = dev;
if ((tp->t_state & TS_ISOPEN) == 0) {
tp->t_state |= TS_CARR_ON;
ttychars(tp);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_cflag = TTYDEF_CFLAG | CLOCAL;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = 9600;
ttsetwater(tp);
setuptimeout = 1;
/*
* Initialize the ARC BIOS console device major.
*/
for (maj = 0; maj < nchrdev; maj++)
if (cdevsw[maj].d_open == arcbios_ttyopen)
break;
arcbios_cn.cn_dev = makedev(maj, 0);
} else if (tp->t_state & TS_XCLUDE && p->p_ucred->cr_uid != 0) {
splx(s);
return (EBUSY);
}
splx(s);
error = (*tp->t_linesw->l_open)(dev, tp);
if (error == 0 && setuptimeout)
callout_reset(&arcbios_tty_ch, 1, arcbios_tty_poll, tp);
return (error);
}
int
arcbios_ttyclose(dev_t dev, int flag, int mode, struct proc *p)
{
int unit = minor(dev);
struct tty *tp = arcbios_tty[unit];
callout_stop(&arcbios_tty_ch);
(*tp->t_linesw->l_close)(tp, flag);
ttyclose(tp);
return (0);
}
int
arcbios_ttyread(dev_t dev, struct uio *uio, int flag)
{
struct tty *tp = arcbios_tty[minor(dev)];
return ((*tp->t_linesw->l_read)(tp, uio, flag));
}
int
arcbios_ttywrite(dev_t dev, struct uio *uio, int flag)
{
struct tty *tp = arcbios_tty[minor(dev)];
return ((*tp->t_linesw->l_write)(tp, uio, flag));
}
int
arcbios_ttypoll(dev_t dev, int events, struct proc *p)
{
struct tty *tp = arcbios_tty[minor(dev)];
return ((*tp->t_linesw->l_poll)(tp, events, p));
}
int
arcbios_ttyioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
{
int unit = minor(dev);
struct tty *tp = arcbios_tty[unit];
int error;
error = (*tp->t_linesw->l_ioctl)(tp, cmd, data, flag, p);
if (error >= 0)
return (error);
error = ttioctl(tp, cmd, data, flag, p);
if (error >= 0)
return (error);
return (ENOTTY);
}
int
arcbios_tty_param(struct tty *tp, struct termios *t)
{
return (0);
}
void
arcbios_tty_start(struct tty *tp)
{
uint32_t count;
int s;
s = spltty();
if (tp->t_state & (TS_TTSTOP | TS_BUSY))
goto out;
if (tp->t_outq.c_cc <= tp->t_lowat) {
if (tp->t_state & TS_ASLEEP) {
tp->t_state &= ~TS_ASLEEP;
wakeup((caddr_t)&tp->t_outq);
}
selwakeup(&tp->t_wsel);
}
tp->t_state |= TS_BUSY;
while (tp->t_outq.c_cc != 0) {
(*ARCBIOS->Write)(ARCBIOS_STDOUT, tp->t_outq.c_cf,
ndqb(&tp->t_outq, 0), &count);
ndflush(&tp->t_outq, count);
}
tp->t_state &= ~TS_BUSY;
out:
splx(s);
}
void
arcbios_ttystop(struct tty *tp, int flag)
{
int s;
s = spltty();
if (tp->t_state & TS_BUSY)
if ((tp->t_state & TS_TTSTOP) == 0)
tp->t_state |= TS_FLUSH;
splx(s);
}
static int
arcbios_tty_getchar(int *cp)
{
char c;
int32_t q;
u_int32_t count;
q = ARCBIOS->GetReadStatus(ARCBIOS_STDIN);
if (q == 0) {
ARCBIOS->Read(ARCBIOS_STDIN, &c, 1, &count);
*cp = c;
return 1;
}
return 0;
}
void
arcbios_tty_poll(void *v)
{
struct tty *tp = v;
int c, l_r;
while (arcbios_tty_getchar(&c)) {
if (tp->t_state & TS_ISOPEN)
l_r = (*tp->t_linesw->l_rint)(c, tp);
}
callout_reset(&arcbios_tty_ch, 1, arcbios_tty_poll, tp);
}
struct tty *
arcbios_ttytty(dev_t dev)
{
if (minor(dev) != 0)
panic("arcbios_ttytty: bogus");
return (arcbios_tty[0]);
}

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/* $NetBSD: arcbiosvar.h,v 1.1 2001/07/08 19:58:03 thorpej Exp $ */
/*-
* Copyright (c) 2001 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.
*/
#ifdef _KERNEL
extern const struct arcbios_spb *ARCBIOS_SPB;
extern const struct arcbios_fv *ARCBIOS;
int arcbios_init(vaddr_t);
#endif /* _KERNEL */