/* $NetBSD: adm5120_obio.c,v 1.6 2021/08/07 16:18:58 thorpej Exp $ */

/*-
* Copyright (c) 2007 Ruslan Ermilov and Vsevolod Lobko.
* 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. The names of the authors may not be used to endorse or promote
*    products derived from this software without specific prior
*    written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS
* 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.
*/
/*
* Copyright 2002 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Simon Burge for Wasabi Systems, Inc.
*
* 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 for the NetBSD Project by
*      Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
*    or promote products derived from this software without specific prior
*    written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
* 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: adm5120_obio.c,v 1.6 2021/08/07 16:18:58 thorpej Exp $");

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

#include <sys/bus.h>

#include <mips/cache.h>
#include <mips/cpuregs.h>

#include <mips/adm5120/include/adm5120reg.h>
#include <mips/adm5120/include/adm5120var.h>
#include <mips/adm5120/include/adm5120_mainbusvar.h>
#include <mips/adm5120/include/adm5120_obiovar.h>

#include "locators.h"

#ifdef OBIO_DEBUG
int obio_debug = 1;
#define OBIO_DPRINTF(__fmt, ...)                \
do {                                            \
       if (obio_debug)                 \
               printf((__fmt), __VA_ARGS__);   \
} while (/*CONSTCOND*/0)
#else /* !OBIO_DEBUG */
#define OBIO_DPRINTF(__fmt, ...)        do { } while (/*CONSTCOND*/0)
#endif /* OBIO_DEBUG */

static int      obio_match(device_t, cfdata_t, void *);
static void     obio_attach(device_t, device_t, void *);
static int      obio_submatch(device_t, cfdata_t, const int *, void *);
static int      obio_print(void *, const char *);

CFATTACH_DECL_NEW(obio, 0, obio_match, obio_attach, NULL, NULL);

/* There can be only one. */
int     obio_found;

struct obiodev {
       const char      *od_name;
       bus_addr_t      od_addr;
       int             od_irq;
       uint32_t        od_gpio_mask;
};

const struct obiodev obiodevs[] = {
       {"uart",        ADM5120_BASE_UART0,     1, 0x0},
       {"uart",        ADM5120_BASE_UART1,     2, 0x0},
       {"admsw",       ADM5120_BASE_SWITCH,    9, 0x0},
       {"ahci",        ADM5120_BASE_USB,       3, 0x0},
       {"admflash",    ADM5120_BASE_SRAM0,     0, 0x0},
       {NULL,          0,                      0, 0x0},
};

static int
obio_match(device_t parent, cfdata_t match, void *aux)
{
       return !obio_found;
}

static void
obio_attach_args_create(struct obio_attach_args *oa, const struct obiodev *od,
   void *gpio, bus_dma_tag_t dmat, bus_space_tag_t st)
{
       oa->oba_name = od->od_name;
       oa->oba_addr = od->od_addr;
       oa->oba_irq = od->od_irq;
       oa->oba_dt = dmat;
       oa->oba_st = st;
       oa->oba_gpio = gpio;
       oa->oba_gpio_mask = od->od_gpio_mask;
}

static void
obio_attach(device_t parent, device_t self, void *aux)
{
       struct mainbus_attach_args *ma = (struct mainbus_attach_args *)aux;
       struct obio_attach_args oa;
       const struct obiodev *od;

       obio_found = 1;
       printf("\n");

       OBIO_DPRINTF("%s: %d\n", __func__, __LINE__);

       OBIO_DPRINTF("%s: %d\n", __func__, __LINE__);
       for (od = obiodevs; od->od_name != NULL; od++) {
               OBIO_DPRINTF("%s: %d\n", __func__, __LINE__);
               obio_attach_args_create(&oa, od, ma->ma_gpio, ma->ma_dmat,
                   ma->ma_obiot);
               OBIO_DPRINTF("%s: %d\n", __func__, __LINE__);
               config_found(self, &oa, obio_print,
                   CFARGS(.submatch = obio_submatch,
                          .iattr = "obio"));
       }
       OBIO_DPRINTF("%s: %d\n", __func__, __LINE__);
}

static int
obio_submatch(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
{
       struct obio_attach_args *oa = aux;

       if (cf->cf_loc[OBIOCF_ADDR] != OBIOCF_ADDR_DEFAULT &&
           cf->cf_loc[OBIOCF_ADDR] != oa->oba_addr)
               return 0;

       return config_match(parent, cf, aux);
}

static int
obio_print(void *aux, const char *pnp)
{
       struct obio_attach_args *oa = aux;

       if (pnp != NULL)
               aprint_normal("%s at %s", oa->oba_name, pnp);
       if (oa->oba_addr != OBIOCF_ADDR_DEFAULT)
               aprint_normal(" addr 0x%"PRIxBUSADDR, oa->oba_addr);
       if (oa->oba_gpio_mask != OBIOCF_GPIO_MASK_DEFAULT)
               aprint_normal(" gpio_mask 0x%02x", oa->oba_gpio_mask);

       return UNCONF;
}

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