/*      $NetBSD: tcbus.c,v 1.33 2017/06/09 17:55:18 flxd Exp $  */

/*-
* Copyright (c) 1999, 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Tohru Nishimura.
*
* 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 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/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: tcbus.c,v 1.33 2017/06/09 17:55:18 flxd Exp $");

#define _PMAX_BUS_DMA_PRIVATE
/*
* Which system models were configured?
*/
#include "opt_dec_3max.h"
#include "opt_dec_3min.h"
#include "opt_dec_maxine.h"
#include "opt_dec_3maxplus.h"

#include <sys/param.h>
#include <sys/bus.h>
#include <sys/cpu.h>
#include <sys/device.h>
#include <sys/systm.h>

#include <pmax/autoconf.h>
#include <pmax/sysconf.h>

#include <dev/tc/tcvar.h>
#include <pmax/pmax/pmaxtype.h>

static const struct evcnt *tc_ds_intr_evcnt(device_t, void *);
static void     tc_ds_intr_establish(device_t, void *,
                               int, int (*)(void *), void *);
static void     tc_ds_intr_disestablish(device_t, void *);
static bus_dma_tag_t tc_ds_get_dma_tag(int);

extern struct tcbus_attach_args kn02_tc_desc[]; /* XXX */
extern struct tcbus_attach_args kmin_tc_desc[]; /* XXX */
extern struct tcbus_attach_args xine_tc_desc[]; /* XXX */
extern struct tcbus_attach_args kn03_tc_desc[]; /* XXX */

static int      tcbus_match(device_t, cfdata_t, void *);
static void     tcbus_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(tcbus, sizeof(struct tc_softc),
   tcbus_match, tcbus_attach, NULL, NULL);

static int tcbus_found;

static int
tcbus_match(device_t parent, cfdata_t cf, void *aux)
{
       struct mainbus_attach_args *ma = aux;

       if (tcbus_found || strcmp(ma->ma_name, "tcbus"))
               return 0;

       return 1;
}

static void
tcbus_attach(device_t parent, device_t self, void *aux)
{
       struct tcbus_attach_args *tba;

       tcbus_found = 1;

       switch (systype) {
#ifdef DEC_3MAX
       case DS_3MAX:
               tba = &kn02_tc_desc[0]; break;
#endif
#ifdef DEC_3MIN
       case DS_3MIN:
               tba = &kmin_tc_desc[0]; break;
#endif
#ifdef DEC_MAXINE
       case DS_MAXINE:
               tba = &xine_tc_desc[0]; break;
#endif
#ifdef DEC_3MAXPLUS
       case DS_3MAXPLUS:
               tba = &kn03_tc_desc[0]; break;
#endif
       default:
               panic("tcbus_attach: no TURBOchannel configured for systype = %d", systype);
       }

       tba->tba_busname = "tc";
       tba->tba_memt = normal_memt;
       tba->tba_intr_evcnt = tc_ds_intr_evcnt;
       tba->tba_intr_establish = tc_ds_intr_establish;
       tba->tba_intr_disestablish = tc_ds_intr_disestablish;
       tba->tba_get_dma_tag = tc_ds_get_dma_tag;

       /* XXX why not config_found(9)? */
       tcattach(parent, self, tba);
}

/*
* Dispatch to model specific interrupt line evcnt fetch rontine
*/
static const struct evcnt *
tc_ds_intr_evcnt(device_t dev, void *cookie)
{

       /* XXX for now, no evcnt parent reported */
       return NULL;
}

/*
* Dispatch to model specific interrupt establishing routine
*/
static void
tc_ds_intr_establish(device_t dev, void *cookie, int level,
   int (*handler)(void *), void *val)
{

       (*platform.intr_establish)(dev, cookie, level, handler, val);
}

static void
tc_ds_intr_disestablish(device_t dev, void *arg)
{

       printf("cannot disestablish TC interrupts\n");
}

/*
* Return the DMA tag for use by the specified TURBOchannel slot.
*/
static bus_dma_tag_t
tc_ds_get_dma_tag(int slot)
{
       /*
        * All DECstations use the default DMA tag.
        */
       return (&pmax_default_bus_dma_tag);
}

#include "wsdisplay.h"

#if NWSDISPLAY > 0

#include "sfb.h"
/* #include "sfbp.h" */
#include "cfb.h"
#include "mfb.h"
#include "tfb.h"
#include "xcfb.h"
#include "px.h"
#include "pxg.h"

#include <pmax/pmax/cons.h>
#include <pmax/dec_prom.h>

struct cnboards {
       const char      *cb_tcname;
       void    (*cb_cnattach)(tc_addr_t);
} static const cnboards[] = {
#if NXCFB > 0
       { "PMAG-DV ", xcfb_cnattach },
#endif
#if NSFB > 0
       { "PMAGB-BA", sfb_cnattach },
#endif
#if NSFBP > 0
       { "PMAGD   ", sfbp_cnattach },
#endif
#if NCFB > 0
       { "PMAG-BA ", cfb_cnattach },
#endif
#if NMFB > 0
       { "PMAG-AA ", mfb_cnattach },
#endif
#if NTFB > 0
       { "PMAG-JA ", tfb_cnattach },
#endif
#if NPX > 0
       { "PMAG-CA ", px_cnattach },
#endif
#if NPXG > 0
       { "PMAG-DA ", pxg_cnattach },
       { "PMAG-FA ", pxg_cnattach },
       { "PMAG-FB ", pxg_cnattach },
       { "PMAGB-FA", pxg_cnattach },
       { "PMAGB-FB", pxg_cnattach },
#endif
};

int
tcfb_cnattach(int slotno)
{
       paddr_t tcaddr;
       char tcname[TC_ROM_LLEN];
       int i;

       tcaddr = promcall(callv->_slot_address, slotno);
       if (tc_badaddr(tcaddr) || tc_checkslot(tcaddr, tcname, NULL) == 0)
               panic("TC console designated by PROM does not exist!?");

       for (i = 0; i < __arraycount(cnboards); i++) {
               if (strncmp(tcname, cnboards[i].cb_tcname, TC_ROM_LLEN) == 0)
                       break;
       }

       if (i == __arraycount(cnboards))
               return (0);

       (cnboards[i].cb_cnattach)((tc_addr_t)TC_PHYS_TO_UNCACHED(tcaddr));
       return (1);
}

#endif  /* NWSDISPLAY */

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