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/*
* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
*
* 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 AUTHORS OR COPYRIGHT HOLDERS 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.
*/
#include "acr.h"
#include <core/firmware.h>
/**
* Convenience function to duplicate a firmware file in memory and check that
* it has the required minimum size.
*/
void *
nvkm_acr_load_firmware(const struct nvkm_subdev *subdev, const char *name,
size_t min_size)
{
const struct firmware *fw;
void *blob;
int ret;
ret = nvkm_firmware_get(subdev->device, name, &fw);
if (ret)
return ERR_PTR(ret);
if (fw->size < min_size) {
nvkm_error(subdev, "%s is smaller than expected size %zu\n",
name, min_size);
nvkm_firmware_put(fw);
return ERR_PTR(-EINVAL);
}
blob = kmemdup(fw->data, fw->size, GFP_KERNEL);
nvkm_firmware_put(fw);
if (!blob)
return ERR_PTR(-ENOMEM);
return blob;
}
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