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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 "priv.h"
#include "head.h"
#include <core/client.h>
#include <nvif/cl0046.h>
#include <nvif/unpack.h>
int
nv04_disp_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
{
struct nvkm_disp *disp = nvkm_disp(object->engine);
union {
struct nv04_disp_mthd_v0 v0;
} *args = data;
struct nvkm_head *head;
int id, ret = -ENOSYS;
nvif_ioctl(object, "disp mthd size %d\n", size);
if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) {
nvif_ioctl(object, "disp mthd vers %d mthd %02x head %d\n",
args->v0.version, args->v0.method, args->v0.head);
mthd = args->v0.method;
id = args->v0.head;
} else
return ret;
if (!(head = nvkm_head_find(disp, id)))
return -ENXIO;
switch (mthd) {
case NV04_DISP_SCANOUTPOS:
return nvkm_head_mthd_scanoutpos(object, head, data, size);
default:
break;
}
return -EINVAL;
}
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