mirror of
https://github.com/Stichting-MINIX-Research-Foundation/netbsd.git
synced 2025-08-14 16:40:59 -04:00
105 lines
3.0 KiB
C
105 lines
3.0 KiB
C
/* $NetBSD: firmware.h,v 1.6 2014/08/06 13:51:12 riastradh Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2013 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Taylor R. Campbell.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef _LINUX_FIRMWARE_H_
|
|
#define _LINUX_FIRMWARE_H_
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/device.h>
|
|
#include <sys/kmem.h>
|
|
#include <sys/systm.h>
|
|
|
|
#include <dev/firmload.h>
|
|
|
|
struct device;
|
|
|
|
struct firmware {
|
|
void *data;
|
|
size_t size;
|
|
};
|
|
|
|
static inline int
|
|
request_firmware(const struct firmware **fwp, const char *image_name,
|
|
struct device *dev)
|
|
{
|
|
const char *drvname;
|
|
struct firmware *fw;
|
|
firmware_handle_t handle;
|
|
int ret;
|
|
|
|
fw = kmem_alloc(sizeof(*fw), KM_SLEEP);
|
|
|
|
/*
|
|
* If driver xyz(4) asks for xyz/foo/bar.bin, turn that into
|
|
* just foo/bar.bin. This leaves open the possibility of name
|
|
* collisions. Let's hope upstream is sensible about this.
|
|
*/
|
|
drvname = device_cfdriver(dev)->cd_name;
|
|
if ((strncmp(drvname, image_name, strlen(drvname)) == 0) &&
|
|
(image_name[strlen(drvname)] == '/'))
|
|
image_name += (strlen(drvname) + 1);
|
|
|
|
/* XXX errno NetBSD->Linux */
|
|
ret = -firmware_open(drvname, image_name, &handle);
|
|
if (ret)
|
|
goto fail0;
|
|
fw->size = firmware_get_size(handle);
|
|
fw->data = firmware_malloc(fw->size);
|
|
|
|
/* XXX errno NetBSD->Linux */
|
|
ret = -firmware_read(handle, 0, fw->data, fw->size);
|
|
(void)firmware_close(handle);
|
|
if (ret)
|
|
goto fail1;
|
|
|
|
/* Success! */
|
|
*fwp = fw;
|
|
return 0;
|
|
|
|
fail1: firmware_free(fw->data, fw->size);
|
|
fail0: KASSERT(ret);
|
|
kmem_free(fw, sizeof(*fw));
|
|
*fwp = NULL;
|
|
return ret;
|
|
}
|
|
|
|
static inline void
|
|
release_firmware(const struct firmware *fw)
|
|
{
|
|
|
|
if (fw != NULL) {
|
|
firmware_free(fw->data, fw->size);
|
|
kmem_free(__UNCONST(fw), sizeof(*fw));
|
|
}
|
|
}
|
|
|
|
#endif /* _LINUX_FIRMWARE_H_ */
|