/* $NetBSD: sdhc_hollywood.c,v 1.4 2025/02/15 15:49:44 jmcneill Exp $ */

/*-
* Copyright (c) 2024 Jared McNeill <[email protected]>
* 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 ``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 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: sdhc_hollywood.c,v 1.4 2025/02/15 15:49:44 jmcneill Exp $");

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

#include <dev/sdmmc/sdhcreg.h>
#include <dev/sdmmc/sdhcvar.h>
#include <dev/sdmmc/sdmmcvar.h>

#include <machine/wii.h>
#include "hollywood.h"

#define SDHC_SIZE                       0x200

extern struct powerpc_bus_dma_tag wii_mem2_bus_dma_tag;

static int      sdhc_hollywood_match(device_t, cfdata_t, void *);
static void     sdhc_hollywood_attach(device_t, device_t, void *);

struct sdhc_hollywood_softc {
       struct sdhc_softc       sc_base;
       struct sdhc_host        *sc_host[1];
};

CFATTACH_DECL_NEW(sdhc_hollywood, sizeof(struct sdhc_hollywood_softc),
       sdhc_hollywood_match, sdhc_hollywood_attach, NULL, NULL);

static int
sdhc_hollywood_match(device_t parent, cfdata_t cf, void *aux)
{
       return 1;
}

static void
sdhc_hollywood_attach(device_t parent, device_t self, void *aux)
{
       struct hollywood_attach_args *haa = aux;
       struct sdhc_hollywood_softc *sc = device_private(self);
       bus_space_tag_t bst;
       bus_space_handle_t bsh;
       int error;

       sc->sc_base.sc_dev = self;
       sc->sc_base.sc_host = sc->sc_host;
       sc->sc_base.sc_dmat = &wii_mem2_bus_dma_tag;
       sc->sc_base.sc_flags = SDHC_FLAG_SINGLE_POWER_WRITE |
                              SDHC_FLAG_32BIT_ACCESS |
                              SDHC_FLAG_USE_DMA;

       bst = haa->haa_bst;
       if (bus_space_map(bst, haa->haa_addr, SDHC_SIZE, 0, &bsh)) {
               aprint_error(": couldn't map registers\n");
               return;
       }

       aprint_naive("\n");
       aprint_normal(": SDHC\n");

       hollywood_claim_device(self,
           device_unit(self) == 0 ? IOPSD0EN : IOPSD1EN);

       hollywood_intr_establish(haa->haa_irq, IPL_SDMMC, sdhc_intr,
           &sc->sc_base, device_xname(self));

       error = sdhc_host_found(&sc->sc_base, bst, bsh, SDHC_SIZE);
       if (error != 0) {
               aprint_error_dev(self,
                   "couldn't initialize host, error = %d\n", error);
       }
}