/*
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* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include "acr.h"
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#include <core/firmware.h>
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/**
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* Convenience function to duplicate a firmware file in memory and check that
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* it has the required minimum size.
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*/
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void *
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nvkm_acr_load_firmware(const struct nvkm_subdev *subdev, const char *name,
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size_t min_size)
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{
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const struct firmware *fw;
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void *blob;
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int ret;
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ret = nvkm_firmware_get(subdev->device, name, &fw);
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if (ret)
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return ERR_PTR(ret);
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if (fw->size < min_size) {
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nvkm_error(subdev, "%s is smaller than expected size %zu\n",
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name, min_size);
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nvkm_firmware_put(fw);
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return ERR_PTR(-EINVAL);
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}
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blob = kmemdup(fw->data, fw->size, GFP_KERNEL);
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nvkm_firmware_put(fw);
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if (!blob)
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return ERR_PTR(-ENOMEM);
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return blob;
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}
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