329 lines
9.4 KiB
C
329 lines
9.4 KiB
C
/*
|
|
* Copyright (c) 1994, 1998 Hellmuth Michaelis. All rights reserved.
|
|
*
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
|
|
*
|
|
*---------------------------------------------------------------------------
|
|
*
|
|
* i4b_tina_dd.c - i4b Stollman Tina-dd control device driver
|
|
* ----------------------------------------------------------
|
|
*
|
|
* $Id: i4b_tina_dd.c,v 1.1 1998/12/27 21:46:53 phk Exp $
|
|
*
|
|
* last edit-date: [Sat Dec 5 18:41:38 1998]
|
|
*
|
|
*---------------------------------------------------------------------------*/
|
|
|
|
#include "tina.h"
|
|
|
|
#if NTINA > 0
|
|
|
|
#include <sys/param.h>
|
|
#if defined(__FreeBSD__) && __FreeBSD__ >= 3
|
|
#include <sys/ioccom.h>
|
|
#else
|
|
#include <sys/ioctl.h>
|
|
#endif
|
|
#include <sys/kernel.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/mbuf.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/fcntl.h>
|
|
#include <sys/socket.h>
|
|
#include <net/if.h>
|
|
|
|
#ifdef __FreeBSD__
|
|
#include <machine/i4b_debug.h>
|
|
#include <machine/i4b_ioctl.h>
|
|
#include <i386/isa/isa_device.h>
|
|
#else
|
|
#include <machine/bus.h>
|
|
#include <sys/device.h>
|
|
#include <i4b/i4b_debug.h>
|
|
#include <i4b/i4b_ioctl.h>
|
|
#endif
|
|
|
|
#include <i4b/include/i4b_mbuf.h>
|
|
#include <i4b/tina-dd/i4b_tina_ioctl.h>
|
|
|
|
static int openflag = 0;
|
|
|
|
int tinaprobe(struct isa_device *dev);
|
|
int tinaattach(struct isa_device *dev);
|
|
void tinaintr(int unit);
|
|
|
|
struct isa_driver tinadriver = {
|
|
tinaprobe,
|
|
tinaattach,
|
|
"tina",
|
|
0
|
|
};
|
|
|
|
static struct tina_softc {
|
|
int sc_unit;
|
|
int sc_iobase;
|
|
} tina_sc[NTINA];
|
|
|
|
static d_open_t tinaopen;
|
|
static d_close_t tinaclose;
|
|
static d_ioctl_t tinaioctl;
|
|
#if defined(__FreeBSD__) && __FreeBSD__ >= 3
|
|
static d_poll_t tinapoll;
|
|
#endif
|
|
|
|
#define CDEV_MAJOR 54
|
|
static struct cdevsw tina_cdevsw =
|
|
{ tinaopen, tinaclose, noread, nowrite,
|
|
tinaioctl, nostop, nullreset, nodevtotty,
|
|
#if defined(__FreeBSD__) && __FreeBSD__ >= 3
|
|
tinapoll, nommap, NULL, "tina", NULL, -1 };
|
|
#else
|
|
noselect, nommap, NULL, "tina", NULL, -1 };
|
|
#endif
|
|
|
|
static void setupaddr(unsigned short iobase, unsigned int addr);
|
|
static void readblock(unsigned short iobase, unsigned int addr,
|
|
unsigned char *dst, unsigned int len);
|
|
static void writeblock(unsigned short iobase, unsigned char *src,
|
|
unsigned long addr, int len);
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* tina - device driver probe routine
|
|
*---------------------------------------------------------------------------*/
|
|
int
|
|
tinaprobe(struct isa_device *dev)
|
|
{
|
|
u_char byte;
|
|
|
|
#define SETLOW 0x55
|
|
#define SETMID 0xaa
|
|
#define SETHIGH 0x06
|
|
|
|
outb((dev->id_iobase + ADDR_CNTL), SETLOW);
|
|
|
|
if((byte = inb(dev->id_iobase + ADDR_CNTL)) != SETLOW)
|
|
{
|
|
printf("tina%d: probe low failed, 0x%x != 0x%x\n",
|
|
dev->id_unit, byte, SETLOW);
|
|
return(0);
|
|
}
|
|
|
|
outb((dev->id_iobase + ADDR_CNTM), SETMID);
|
|
if((byte = inb(dev->id_iobase + ADDR_CNTM)) != SETMID)
|
|
{
|
|
printf("tina%d: probe mid failed, 0x%x != 0x%x\n",
|
|
dev->id_unit, byte, SETMID);
|
|
return(0);
|
|
}
|
|
|
|
outb((dev->id_iobase + ADDR_CNTH), SETHIGH);
|
|
if(((byte = inb(dev->id_iobase + ADDR_CNTH)) & 0x0f) != SETHIGH)
|
|
{
|
|
printf("tina%d: probe high failed, 0x%x != 0x%x\n",
|
|
dev->id_unit, byte, SETHIGH);
|
|
return(0);
|
|
}
|
|
|
|
printf("tina%d: status register = 0x%x\n",
|
|
dev->id_unit, inb(dev->id_iobase + CTRL_STAT));
|
|
|
|
return(1); /* board found */
|
|
}
|
|
#undef SETLOW
|
|
#undef SETMID
|
|
#undef SETHIGH
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* tina - device driver attach routine
|
|
*---------------------------------------------------------------------------*/
|
|
int
|
|
tinaattach(struct isa_device *dev)
|
|
{
|
|
struct tina_softc *sc = &tina_sc[dev->id_unit];
|
|
|
|
sc->sc_unit = dev->id_unit;
|
|
sc->sc_iobase = dev->id_iobase;
|
|
|
|
printf("tina%d: attaching Tina-dd\n", dev->id_unit);
|
|
|
|
return(1);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* tina - device driver interrupt routine
|
|
*---------------------------------------------------------------------------*/
|
|
void
|
|
tinaintr(int unit)
|
|
{
|
|
}
|
|
|
|
#if BSD > 199306 && defined(__FreeBSD__)
|
|
/*---------------------------------------------------------------------------*
|
|
* initialization at kernel load time
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
tinainit(void *unused)
|
|
{
|
|
dev_t dev;
|
|
|
|
dev = makedev(CDEV_MAJOR, 0);
|
|
|
|
cdevsw_add(&dev, &tina_cdevsw, NULL);
|
|
}
|
|
|
|
SYSINIT(tinadev, SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR, &tinainit, NULL);
|
|
|
|
#endif /* BSD > 199306 && defined(__FreeBSD__) */
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* tinaopen - device driver open routine
|
|
*---------------------------------------------------------------------------*/
|
|
static int
|
|
tinaopen(dev_t dev, int flag, int fmt, struct proc *p)
|
|
{
|
|
if(minor(dev))
|
|
return (ENXIO);
|
|
|
|
if(openflag)
|
|
return (EBUSY);
|
|
|
|
openflag = 1;
|
|
|
|
return(0);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* tinaclose - device driver close routine
|
|
*---------------------------------------------------------------------------*/
|
|
static int
|
|
tinaclose(dev_t dev, int flag, int fmt, struct proc *p)
|
|
{
|
|
openflag = 0;
|
|
return(0);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* tinaioctl - device driver ioctl routine
|
|
*---------------------------------------------------------------------------*/
|
|
static int
|
|
tinaioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
|
|
{
|
|
struct tina_softc *sc = &tina_sc[minor(dev)];
|
|
u_short iobase = sc->sc_iobase;
|
|
int error = 0;
|
|
int s;
|
|
|
|
if(minor(dev))
|
|
return(ENODEV);
|
|
|
|
s = splimp();
|
|
|
|
switch(cmd)
|
|
{
|
|
/* hardware layer - control & status register */
|
|
|
|
case ISDN_GETCSR: /* return control register */
|
|
*(unsigned char *)data = inb(iobase + CTRL_STAT);
|
|
break;
|
|
|
|
case ISDN_SETCSR: /* set status register */
|
|
outb((iobase + CTRL_STAT), *(unsigned char *)data);
|
|
break;
|
|
|
|
/* hardware layer - dual ported memory */
|
|
|
|
case ISDN_GETBLK: /* get block from dual port mem */
|
|
readblock(iobase, (*(struct record *)data).addr,
|
|
(*(struct record *)data).data,
|
|
(*(struct record *)data).length);
|
|
break;
|
|
|
|
case ISDN_SETBLK: /* write block to dual port mem */
|
|
writeblock(iobase, (*(struct record *)data).data,
|
|
(*(struct record *)data).addr,
|
|
(*(struct record *)data).length);
|
|
break;
|
|
|
|
default:
|
|
error = ENOTTY;
|
|
break;
|
|
}
|
|
return(error);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* tinapoll - device driver poll routine
|
|
*---------------------------------------------------------------------------*/
|
|
#if defined(__FreeBSD__) && __FreeBSD__ >= 3
|
|
static int
|
|
tinapoll (dev_t dev, int events, struct proc *p)
|
|
{
|
|
return (ENODEV);
|
|
}
|
|
#endif
|
|
|
|
/*===========================================================================*
|
|
* tina dual ported memory access
|
|
*===========================================================================*/
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* setup address for accessing tina-dd ram
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
setupaddr(unsigned short iobase, unsigned int addr)
|
|
{
|
|
outb((iobase + ADDR_CNTL), (unsigned char) addr & 0xff);
|
|
outb((iobase + ADDR_CNTM), (unsigned char) ((addr >> 8) & 0xff));
|
|
outb((iobase + ADDR_CNTH), (unsigned char) ((addr >> 16) & 0xff));
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* read block from tina-dd dual ported ram
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
readblock(unsigned short iobase, unsigned int addr,
|
|
unsigned char *dst, unsigned int len)
|
|
{
|
|
setupaddr(iobase, addr); /* setup start address */
|
|
|
|
while(len--) /* tina-dd mem -> pc mem */
|
|
*dst++ = inb(iobase + DATA_LOW_INC);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* write block to tina-dd dual ported ram
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
writeblock(unsigned short iobase, unsigned char *src,
|
|
unsigned long addr, int len)
|
|
{
|
|
setupaddr(iobase, addr); /* setup start address */
|
|
|
|
while(len--) /* pc mem -> tina-dd mem */
|
|
outb((iobase + DATA_LOW_INC), *src++);
|
|
}
|
|
|
|
#endif /* NTINA > 0 */
|