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/*
* Copyright 2016 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 <nvif/os.h>
static int
request_firmware_(const struct firmware **pfw, const char *prefix,
const char *name, struct device *dev)
{
struct firmware *fw = *(void **)pfw = malloc(sizeof(*fw));
char *path;
int fd;
if (!(path = malloc(strlen(prefix) + strlen(name) + 1)))
return -ENOMEM;
sprintf(path, "%s%s", prefix, name);
fd = open(path, O_RDONLY);
free(path);
if (fd >= 0) {
off_t len = lseek(fd, 0, SEEK_END);
fw->data = malloc(len);
fw->size = pread(fd, fw->data, len, 0);
return 0;
}
free(fw);
return -EINVAL;
}
int
request_firmware(const struct firmware **pfw, const char *name,
struct device *dev)
{
if (!request_firmware_(pfw, "/lib/firmware/", name, dev))
return 0;
if (!request_firmware_(pfw, "", name, dev))
return 0;
return -EINVAL;
}
void
release_firmware(const struct firmware *fw)
{
free(fw->data);
free((void *)fw);
}
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