freebsd-nq/sys/i4b/layer1/i4b_elsa_pcc16.c

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1999-12-14 20:48:35 +00:00
/*
* Copyright (c) 1999 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.
*
*---------------------------------------------------------------------------
*
* isic - I4B Siemens ISDN Chipset Driver for ELSA MicroLink ISDN/PCC-16
* =====================================================================
*
* $Id: i4b_elsa_pcc16.c,v 1.2 1999/12/13 21:25:26 hm Exp $
*
* $FreeBSD$
*
* last edit-date: [Mon Dec 13 21:59:36 1999]
*
*---------------------------------------------------------------------------*/
#include "isic.h"
#include "opt_i4b.h"
#if (NISIC > 0) && defined(ELSA_PCC16)
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <net/if.h>
#include <sys/ioccom.h>
#include <machine/clock.h>
#include <machine/i4b_debug.h>
#include <machine/i4b_ioctl.h>
#include <i4b/include/i4b_global.h>
#include <i4b/include/i4b_l1l2.h>
#include <i4b/include/i4b_mbuf.h>
#include <i4b/layer1/i4b_l1.h>
#include <i4b/layer1/i4b_isac.h>
#include <i4b/layer1/i4b_hscx.h>
static void i4b_epcc16_clrirq(struct l1_softc *sc);
/* masks for register encoded in base addr */
#define ELSA_BASE_MASK 0x0ffff
#define ELSA_OFF_MASK 0xf0000
/* register id's to be encoded in base addr */
#define ELSA_IDISAC 0x00000
#define ELSA_IDHSCXA 0x10000
#define ELSA_IDHSCXB 0x20000
/* offsets from base address */
#define ELSA_OFF_ISAC 0x00
#define ELSA_OFF_HSCX 0x02
#define ELSA_OFF_OFF 0x03
#define ELSA_OFF_CTRL 0x04
#define ELSA_OFF_CFG 0x05
#define ELSA_OFF_TIMR 0x06
#define ELSA_OFF_IRQ 0x07
/* control register (write access) */
#define ELSA_CTRL_LED_YELLOW 0x02
#define ELSA_CTRL_LED_GREEN 0x08
#define ELSA_CTRL_RESET 0x20
#define ELSA_CTRL_TIMEREN 0x80
#define ELSA_CTRL_SECRET 0x50
/*---------------------------------------------------------------------------*
* ELSA MicroLink ISDN/PCC-16 clear IRQ routine
*---------------------------------------------------------------------------*/
static void
i4b_epcc16_clrirq(struct l1_softc *sc)
{
bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]);
bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
bus_space_write_1(t, h, ELSA_OFF_IRQ, 0);
}
/*---------------------------------------------------------------------------*
* ELSA MicroLink ISDN/PCC-16 ISAC get fifo routine
*---------------------------------------------------------------------------*/
static void
epcc16_read_fifo(struct l1_softc *sc, int what, void *buf, size_t size)
{
bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]);
bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
switch (what) {
case ISIC_WHAT_ISAC:
bus_space_write_1(t, h, ELSA_OFF_OFF, 0);
bus_space_read_multi_1(t, h, ELSA_OFF_ISAC, buf, size);
break;
case ISIC_WHAT_HSCXA:
bus_space_write_1(t, h, ELSA_OFF_OFF, 0);
bus_space_read_multi_1(t, h, ELSA_OFF_HSCX, buf, size);
break;
case ISIC_WHAT_HSCXB:
bus_space_write_1(t, h, ELSA_OFF_OFF, 0x40);
bus_space_read_multi_1(t, h, ELSA_OFF_HSCX, buf, size);
break;
}
}
/*---------------------------------------------------------------------------*
* ELSA MicroLink ISDN/PCC-16 ISAC put fifo routine
*---------------------------------------------------------------------------*/
static void
epcc16_write_fifo(struct l1_softc *sc, int what, void *buf, size_t size)
{
bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]);
bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
switch (what) {
case ISIC_WHAT_ISAC:
bus_space_write_1(t, h, ELSA_OFF_OFF, 0);
bus_space_write_multi_1(t, h, ELSA_OFF_ISAC, buf, size);
break;
case ISIC_WHAT_HSCXA:
bus_space_write_1(t, h, ELSA_OFF_OFF, 0);
bus_space_write_multi_1(t, h, ELSA_OFF_HSCX, buf, size);
break;
case ISIC_WHAT_HSCXB:
bus_space_write_1(t, h, ELSA_OFF_OFF, 0x40);
bus_space_write_multi_1(t, h, ELSA_OFF_HSCX, buf, size);
break;
}
}
/*---------------------------------------------------------------------------*
* ELSA MicroLink ISDN/PCC-16 ISAC put register routine
*---------------------------------------------------------------------------*/
static void
epcc16_write_reg(struct l1_softc *sc, int what, bus_size_t offs, u_int8_t data)
{
bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]);
bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
switch (what) {
case ISIC_WHAT_ISAC:
bus_space_write_1(t, h, ELSA_OFF_OFF, offs);
bus_space_write_1(t, h, ELSA_OFF_ISAC, data);
break;
case ISIC_WHAT_HSCXA:
bus_space_write_1(t, h, ELSA_OFF_OFF, offs);
bus_space_write_1(t, h, ELSA_OFF_HSCX, data);
break;
case ISIC_WHAT_HSCXB:
bus_space_write_1(t, h, ELSA_OFF_OFF, 0x40+offs);
bus_space_write_1(t, h, ELSA_OFF_HSCX, data);
break;
}
}
/*---------------------------------------------------------------------------*
* ELSA MicroLink ISDN/PCC-16 ISAC get register routine
*---------------------------------------------------------------------------*/
static u_int8_t
epcc16_read_reg(struct l1_softc *sc, int what, bus_size_t offs)
{
bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]);
bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
switch (what) {
case ISIC_WHAT_ISAC:
bus_space_write_1(t, h, ELSA_OFF_OFF, offs);
return bus_space_read_1(t, h, ELSA_OFF_ISAC);
case ISIC_WHAT_HSCXA:
bus_space_write_1(t, h, ELSA_OFF_OFF, offs);
return bus_space_read_1(t, h, ELSA_OFF_HSCX);
case ISIC_WHAT_HSCXB:
bus_space_write_1(t, h, ELSA_OFF_OFF, 0x40+offs);
return bus_space_read_1(t, h, ELSA_OFF_HSCX);
}
return 0;
}
/*---------------------------------------------------------------------------*
* isic_detach_Epcc16 - detach for ELSA MicroLink ISDN/PCC-16
*---------------------------------------------------------------------------*/
static void
isic_detach_Epcc16(device_t dev)
{
struct l1_softc *sc = &l1_sc[device_get_unit(dev)];
if ( sc->sc_resources.irq )
{
bus_teardown_intr(dev,sc->sc_resources.irq,
(void(*)(void *))isicintr);
bus_release_resource(dev,SYS_RES_IRQ,
sc->sc_resources.irq_rid,
sc->sc_resources.irq);
sc->sc_resources.irq = 0;
}
if ( sc->sc_resources.io_base[0] ) {
bus_release_resource(dev,SYS_RES_IOPORT,
sc->sc_resources.io_rid[0],
sc->sc_resources.io_base[0]);
sc->sc_resources.io_base[0] = 0;
}
}
/*---------------------------------------------------------------------------*
* isic_probe_Epcc16 - probe for ELSA MicroLink ISDN/PCC-16
*---------------------------------------------------------------------------*/
int
isic_probe_Epcc16(device_t dev)
{
size_t unit = device_get_unit(dev); /* get unit */
struct l1_softc *sc = 0; /* pointer to softc */
void *ih = 0; /* dummy */
/* check max unit range */
if(unit >= ISIC_MAXUNIT)
{
printf("isic%d: Error, unit %d >= ISIC_MAXUNIT for ELSA PCC-16!\n",
unit, unit);
return(ENXIO);
}
sc = &l1_sc[unit]; /* get pointer to softc */
sc->sc_unit = unit; /* set unit */
sc->sc_flags = FLAG_ELSA_PCC16; /* set flags */
/* see if an io base was supplied */
if(!(sc->sc_resources.io_base[0] =
bus_alloc_resource(dev, SYS_RES_IOPORT,
&sc->sc_resources.io_rid[0],
0ul, ~0ul, 1, RF_ACTIVE)))
{
printf("isic%d: Could not get iobase for ELSA PCC-16.\n",
unit);
return(ENXIO);
}
/* check if we got an iobase */
sc->sc_port = rman_get_start(sc->sc_resources.io_base[0]);
switch(sc->sc_port)
{
case 0x160:
case 0x170:
case 0x260:
case 0x360:
break;
default:
printf("isic%d: Error, invalid iobase 0x%x specified for ELSA MicroLink ISDN/PCC-16!\n",
unit, sc->sc_port);
isic_detach_Epcc16(dev);
return(ENXIO);
break;
}
/* setup access routines */
sc->clearirq = i4b_epcc16_clrirq;
sc->readreg = epcc16_read_reg;
sc->writereg = epcc16_write_reg;
sc->readfifo = epcc16_read_fifo;
sc->writefifo = epcc16_write_fifo;
/* setup card type */
sc->sc_cardtyp = CARD_TYPEP_ELSAQS1ISA;
/* setup IOM bus type */
sc->sc_bustyp = BUS_TYPE_IOM2;
sc->sc_ipac = 0;
sc->sc_bfifolen = HSCX_FIFO_LEN;
/*
* Read HSCX A/B VSTR. Expected value for the ELSA PCC-16
* is 0x05 ( = version 2.1 ) in the least significant bits.
*/
if( ((HSCX_READ(0, H_VSTR) & 0xf) != 0x5) ||
((HSCX_READ(1, H_VSTR) & 0xf) != 0x5) )
{
printf("isic%d: HSCX VSTR test failed for ELSA MicroLink ISDN/PCC-16\n",
unit);
printf("isic%d: HSC0: VSTR: %#x\n",
unit, HSCX_READ(0, H_VSTR));
printf("isic%d: HSC1: VSTR: %#x\n",
unit, HSCX_READ(1, H_VSTR));
isic_detach_Epcc16(dev);
return (ENXIO);
}
/* get our irq */
if(!(sc->sc_resources.irq =
bus_alloc_resource(dev, SYS_RES_IRQ,
&sc->sc_resources.irq_rid,
0ul, ~0ul, 1, RF_ACTIVE)))
{
printf("isic%d: Could not get an irq.\n",unit);
isic_detach_Epcc16(dev);
return ENXIO;
}
/* get the irq number */
sc->sc_irq = rman_get_start(sc->sc_resources.irq);
/* check IRQ validity */
switch(sc->sc_irq)
{
case 2:
case 9:
case 3:
case 5:
case 10:
case 11:
case 15:
break;
default:
printf("isic%d: Error, invalid IRQ [%d] specified for ELSA MicroLink ISDN/PCC-16!\n",
unit, sc->sc_irq);
isic_detach_Epcc16(dev);
return(ENXIO);
break;
}
/* register interupt routine */
bus_setup_intr(dev,sc->sc_resources.irq,INTR_TYPE_NET,
(void(*)(void *))(isicintr),
sc,&ih);
return (0);
}
/*---------------------------------------------------------------------------*
* isic_attach_Epcc16 - attach for ELSA MicroLink ISDN/PCC-16
*---------------------------------------------------------------------------*/
int
isic_attach_Epcc16(device_t dev)
{
int unit = device_get_unit(dev);
struct l1_softc *sc = &l1_sc[unit];
bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]);
bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
u_char byte = ELSA_CTRL_SECRET;
byte &= ~ELSA_CTRL_RESET;
bus_space_write_1(t, h, ELSA_OFF_CTRL, byte);
DELAY(20);
byte |= ELSA_CTRL_RESET;
bus_space_write_1(t, h, ELSA_OFF_CTRL, byte);
DELAY(20);
bus_space_write_1(t, h, ELSA_OFF_IRQ, 0xff);
return 0;
}
#endif /* (NISIC > 0) && defined(ELSA_PCC16) */