nv50.c

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/*
 * Copyright 2012 Red Hat Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: Ben Skeggs
 */

#include <subdev/devinit.h>
#include <subdev/vga.h>

struct nv50_devinit_priv {
    struct nouveau_devinit base;
};

static int
nv50_devinit_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
          struct nouveau_oclass *oclass, void *data, u32 size,
          struct nouveau_object **pobject)
{
    struct nv50_devinit_priv *priv;
    int ret;

    ret = nouveau_devinit_create(parent, engine, oclass, &priv);
    *pobject = nv_object(priv);
    if (ret)
        return ret;

    return 0;
}

static void
nv50_devinit_dtor(struct nouveau_object *object)
{
    struct nv50_devinit_priv *priv = (void *)object;
    nouveau_devinit_destroy(&priv->base);
}

static int
nv50_devinit_init(struct nouveau_object *object)
{
    struct nv50_devinit_priv *priv = (void *)object;

    if (!priv->base.post) {
        if (!nv_rdvgac(priv, 0, 0x00) &&
            !nv_rdvgac(priv, 0, 0x1a)) {
            nv_info(priv, "adaptor not initialised\n");
            priv->base.post = true;
        }
    }

    return nouveau_devinit_init(&priv->base);
}

static int
nv50_devinit_fini(struct nouveau_object *object, bool suspend)
{
    struct nv50_devinit_priv *priv = (void *)object;
    return nouveau_devinit_fini(&priv->base, suspend);
}

struct nouveau_oclass
nv50_devinit_oclass = {
    .handle = NV_SUBDEV(DEVINIT, 0x50),
    .ofuncs = &(struct nouveau_ofuncs) {
        .ctor = nv50_devinit_ctor,
        .dtor = nv50_devinit_dtor,
        .init = nv50_devinit_init,
        .fini = nv50_devinit_fini,
    },
};