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NetBSD/sys/dev/pcmcia/isic_pcmcia.c
martin 5171d409a5 First step to cleanup the hardware driver <-> upper layers interface. 
This now provides slightly more functionality than the FreeBSD layer1-newbus
interface. It was meant to be a simple change to one header and a few
c files, but the change rippled all through various stuff.

To prevent a change to the kernel<->userland interface right now the kernel
is now lying about card types to userland (but who cares). This will be fixed
when the userland interface changes, after layer 3 <-> layer 4 has been
fixed.

Functional changes:

Provide a clean interface for hardware drivers to attach to the upper
layers. This will need another small change in the B-channel handling
when a similar change to the layer 3 <-> layer 4 interface happens.

Avoid passing indices into global arrays of pointers around, instead pass
the pointers itself. Don't code hardware driver types by predefined magic
numbers (think LKM). Prepare for detachable drivers (think pcmcia).

While there remove some sets of function pointers always pointing to the
same function (meant to be the configurable set of D channel protocol
handlers). It is unlikely another supported D-channel protocol will fit into
that (maximal layer interface) abstraction. When we get support for another
protocol, we will need to come up with a workable interface. Besides, the
old implementation was, uhm, strange.
2001-03-24 12:40:29 +00:00

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/*
* Copyright (c) 1998 Martin Husemann. 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.
* 3. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
* 4. Altered versions must be plainly marked as such, and must not be
* misrepresented as being the original software and/or documentation.
*
* 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_pcmcia.c - pcmcia bus frontend for i4b_isic driver
* -------------------------------------------------------
*
* $Id: isic_pcmcia.c,v 1.3 2001/03/24 12:40:30 martin Exp $
*
* last edit-date: [Fri Jan 5 11:39:32 2001]
*
* -mh original implementation
*
*---------------------------------------------------------------------------*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/errno.h>
#include <sys/syslog.h>
#include <sys/device.h>
#include <sys/socket.h>
#include <net/if.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#if defined(__NetBSD__) && __NetBSD_Version__ >= 104230000
#include <sys/callout.h>
#endif
#include <machine/cpu.h>
#include <machine/intr.h>
#include <machine/bus.h>
#include <dev/pcmcia/pcmciareg.h>
#include <dev/pcmcia/pcmciavar.h>
#include <dev/pcmcia/pcmciadevs.h>
#ifdef __FreeBSD__
#include <machine/i4b_ioctl.h>
#include <machine/i4b_trace.h>
#else
#include <netisdn/i4b_ioctl.h>
#include <netisdn/i4b_trace.h>
#endif
#include <dev/ic/isic_l1.h>
#include <dev/ic/ipac.h>
#include <dev/ic/isac.h>
#include <dev/ic/hscx.h>
#include <netisdn/i4b_l1l2.h>
#include <netisdn/i4b_global.h>
#include <dev/pcmcia/isic_pcmcia.h>
#include "opt_isicpcmcia.h"
extern const struct isdn_layer1_bri_driver isic_std_driver;
static int isic_pcmcia_match __P((struct device *, struct cfdata *, void *));
static void isic_pcmcia_attach __P((struct device *, struct device *, void *));
static const struct isic_pcmcia_card_entry * find_matching_card __P((struct pcmcia_attach_args *pa));
static int isic_pcmcia_isdn_attach __P((struct l1_softc *sc));
struct cfattach isic_pcmcia_ca = {
sizeof(struct pcmcia_l1_softc), isic_pcmcia_match, isic_pcmcia_attach
};
struct isic_pcmcia_card_entry {
int32_t vendor; /* vendor ID */
int32_t product; /* product ID */
char *cis1_info[4]; /* CIS info to match */
char *name; /* name of controller */
int function; /* expected PCMCIA function type */
int card_type; /* card type found */
isic_pcmcia_attach_func attach; /* card initialization */
};
static const struct isic_pcmcia_card_entry card_list[] = {
#ifdef ISICPCMCIA_AVM_A1
{ PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID,
{ "AVM", "ISDN A", NULL, NULL },
"AVM Fritz!Card", PCMCIA_FUNCTION_NETWORK,
CARD_TYPEP_PCFRITZ, isic_attach_fritzpcmcia },
#endif
#ifdef ISICPCMCIA_ELSA_ISDNMC
{ PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID,
{ "ELSA GmbH, Aachen", "MicroLink ISDN/MC ", NULL, NULL },
"ELSA MicroLink ISDN/MC", PCMCIA_FUNCTION_NETWORK,
CARD_TYPEP_ELSAMLIMC, isic_attach_elsaisdnmc },
{ PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID,
{ "ELSA AG, Aachen", "MicroLink ISDN/MC ", NULL, NULL },
"ELSA MicroLink ISDN/MC", PCMCIA_FUNCTION_NETWORK,
CARD_TYPEP_ELSAMLIMC, isic_attach_elsaisdnmc },
{ PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID,
{ "ELSA AG (Aachen, Germany)", "MicroLink ISDN/MC ", NULL, NULL },
"ELSA MicroLink ISDN/MC", PCMCIA_FUNCTION_NETWORK,
CARD_TYPEP_ELSAMLIMC, isic_attach_elsaisdnmc },
#endif
#ifdef ISICPCMCIA_ELSA_MCALL
{ 0x105, 0x410a,
{ "ELSA", "MicroLink MC all", NULL, NULL },
"ELSA MicroLink MCall", PCMCIA_FUNCTION_NETWORK,
CARD_TYPEP_ELSAMLMCALL, isic_attach_elsamcall },
#endif
#ifdef ISICPCMCIA_SBSPEEDSTAR2
{ 0x020e, 0x0002,
{ "SEDLBAUER", "speed star II", NULL, NULL },
"SEDLBAUER speed star II", PCMCIA_FUNCTION_NETWORK,
CARD_TYPEP_SWS, isic_attach_sbspeedstar2 },
#endif
};
#define NUM_MATCH_ENTRIES (sizeof(card_list)/sizeof(card_list[0]))
static const struct isic_pcmcia_card_entry *
find_matching_card(pa)
struct pcmcia_attach_args *pa;
{
int i, j;
for (i = 0; i < NUM_MATCH_ENTRIES; i++) {
if (card_list[i].vendor != PCMCIA_VENDOR_INVALID && pa->card->manufacturer != card_list[i].vendor)
continue;
if (card_list[i].product != PCMCIA_PRODUCT_INVALID && pa->card->product != card_list[i].product)
continue;
if (pa->pf->function != card_list[i].function)
continue;
for (j = 0; j < 4; j++) {
if (card_list[i].cis1_info[j] == NULL)
continue; /* wildcard */
if (pa->card->cis1_info[j] == NULL)
break; /* not available */
if (strcmp(pa->card->cis1_info[j], card_list[i].cis1_info[j]) != 0)
break; /* mismatch */
}
if (j >= 4)
break;
}
if (i >= NUM_MATCH_ENTRIES)
return NULL;
return &card_list[i];
}
/*
* Match card
*/
static int
isic_pcmcia_match(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct pcmcia_attach_args *pa = aux;
if (!find_matching_card(pa))
return 0;
return 1;
}
/*
* Attach the card
*/
static void
isic_pcmcia_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct pcmcia_l1_softc *psc = (void*) self;
struct l1_softc *sc = &psc->sc_isic;
struct pcmcia_attach_args *pa = aux;
struct pcmcia_config_entry *cfe;
const struct isic_pcmcia_card_entry * cde;
int s;
/* Which card is it? */
cde = find_matching_card(pa);
if (cde == NULL)
return; /* oops - not found?!? */
psc->sc_pf = pa->pf;
cfe = pa->pf->cfe_head.sqh_first;
/* Enable the card */
pcmcia_function_init(pa->pf, cfe);
pcmcia_function_enable(pa->pf);
if (!cde->attach(psc, cfe, pa))
return; /* Ooops ? */
sc->sc_unit = sc->sc_dev.dv_unit;
/* Announce card name */
printf(": %s\n", cde->name);
/* XXX - we generate interrupts during card initialization.
Block them for now, until the handler is established. */
s = splhigh();
/* MI initilization */
if (isic_pcmcia_isdn_attach(sc) == 0) {
/* setup interrupt */
psc->sc_ih = pcmcia_intr_establish(pa->pf, IPL_NET, isicintr, sc);
}
splx(s);
}
/*---------------------------------------------------------------------------*
* card independend attach for pcmicia cards
*---------------------------------------------------------------------------*/
/* parameter and format for message producing e.g. "isic0: " */
#ifdef __FreeBSD__
#define ISIC_FMT "isic%d: "
#define ISIC_PARM dev->id_unit
#define TERMFMT " "
#else
#define ISIC_FMT "%s: "
#define ISIC_PARM sc->sc_dev.dv_xname
#define TERMFMT "\n"
#endif
int
isic_pcmcia_isdn_attach(struct l1_softc *sc)
{
static char *ISACversion[] = {
"2085 Version A1/A2 or 2086/2186 Version 1.1",
"2085 Version B1",
"2085 Version B2",
"2085 Version V2.3 (B3)",
"Unknown Version"
};
static char *HSCXversion[] = {
"82525 Version A1",
"Unknown (0x01)",
"82525 Version A2",
"Unknown (0x03)",
"82525 Version A3",
"82525 or 21525 Version 2.1",
"Unknown Version"
};
sc->sc_isac_version = 0;
sc->sc_isac_version = ((ISAC_READ(I_RBCH)) >> 5) & 0x03;
switch(sc->sc_isac_version)
{
case ISAC_VA:
case ISAC_VB1:
case ISAC_VB2:
case ISAC_VB3:
break;
default:
printf(ISIC_FMT "Error, ISAC version %d unknown!\n",
ISIC_PARM, sc->sc_isac_version);
return(EIO);
}
sc->sc_hscx_version = HSCX_READ(0, H_VSTR) & 0xf;
switch(sc->sc_hscx_version)
{
case HSCX_VA1:
case HSCX_VA2:
case HSCX_VA3:
case HSCX_V21:
break;
default:
printf(ISIC_FMT "Error, HSCX version %d unknown!\n",
ISIC_PARM, sc->sc_hscx_version);
return(EIO);
};
/* ISAC setup */
isic_isac_init(sc);
/* HSCX setup */
isic_bchannel_setup(sc, HSCX_CH_A, BPROT_NONE, 0);
isic_bchannel_setup(sc, HSCX_CH_B, BPROT_NONE, 0);
/* setup linktab */
isic_init_linktab(sc);
/* set trace level */
sc->sc_trace = TRACE_OFF;
sc->sc_state = ISAC_IDLE;
sc->sc_ibuf = NULL;
sc->sc_ib = NULL;
sc->sc_ilen = 0;
sc->sc_obuf = NULL;
sc->sc_op = NULL;
sc->sc_ol = 0;
sc->sc_freeflag = 0;
sc->sc_obuf2 = NULL;
sc->sc_freeflag2 = 0;
#if defined(__NetBSD__) && __NetBSD_Version__ >= 104230000
callout_init(&sc->sc_T3_callout);
callout_init(&sc->sc_T4_callout);
#endif
/* init higher protocol layers */
sc->sc_l2 = isdn_attach_layer1_bri(sc, sc->sc_dev.dv_xname, "some isic card", &isic_std_driver);
/* announce chip versions */
if(sc->sc_isac_version >= ISAC_UNKN)
{
printf(ISIC_FMT "ISAC Version UNKNOWN (VN=0x%x)" TERMFMT,
ISIC_PARM,
sc->sc_isac_version);
sc->sc_isac_version = ISAC_UNKN;
}
else
{
printf(ISIC_FMT "ISAC %s (IOM-%c)" TERMFMT,
ISIC_PARM,
ISACversion[sc->sc_isac_version],
sc->sc_bustyp == BUS_TYPE_IOM1 ? '1' : '2');
}
if(sc->sc_hscx_version >= HSCX_UNKN)
{
printf(ISIC_FMT "HSCX Version UNKNOWN (VN=0x%x)" TERMFMT,
ISIC_PARM,
sc->sc_hscx_version);
sc->sc_hscx_version = HSCX_UNKN;
}
else
{
printf(ISIC_FMT "HSCX %s" TERMFMT,
ISIC_PARM,
HSCXversion[sc->sc_hscx_version]);
}
return(0);
}
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