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fb3c549738
A (so far out-of-tree) driver update needs request_partial_firmware_into_buf(). Given we load the full .ko file using firmware(9) just do that and copy the requeste data into the buffer (rather than poissibly only reading portions of the firmware file). MFC after: 1 week
118 lines
3.7 KiB
C
118 lines
3.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2020-2021 The FreeBSD Foundation
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* Copyright (c) 2022 Bjoern A. Zeeb
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*
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* This software was developed by Björn Zeeb under sponsorship from
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* the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _LINUXKPI_LINUX_FIRMWARE_H
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#define _LINUXKPI_LINUX_FIRMWARE_H
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#include <sys/types.h>
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#include <linux/types.h>
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#include <linux/device.h>
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struct firmware;
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struct linuxkpi_firmware {
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size_t size;
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const uint8_t *data;
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/* XXX Does Linux expose anything else? */
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/* This is LinuxKPI implementation private. */
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const struct firmware *fbdfw;
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};
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int linuxkpi_request_firmware_nowait(struct module *, bool, const char *,
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struct device *, gfp_t, void *,
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void(*cont)(const struct linuxkpi_firmware *, void *));
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int linuxkpi_request_firmware(const struct linuxkpi_firmware **,
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const char *, struct device *);
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int linuxkpi_firmware_request_nowarn(const struct linuxkpi_firmware **,
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const char *, struct device *);
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void linuxkpi_release_firmware(const struct linuxkpi_firmware *);
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int linuxkpi_request_partial_firmware_into_buf(const struct linuxkpi_firmware **,
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const char *, struct device *, uint8_t *, size_t, size_t);
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static __inline int
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request_firmware_nowait(struct module *mod, bool _t,
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const char *fw_name, struct device *dev, gfp_t gfp, void *drv,
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void(*cont)(const struct linuxkpi_firmware *, void *))
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{
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return (linuxkpi_request_firmware_nowait(mod, _t, fw_name, dev, gfp,
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drv, cont));
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}
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static __inline int
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request_firmware(const struct linuxkpi_firmware **fw,
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const char *fw_name, struct device *dev)
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{
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return (linuxkpi_request_firmware(fw, fw_name, dev));
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}
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static __inline int
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request_firmware_direct(const struct linuxkpi_firmware **fw,
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const char *fw_name, struct device *dev)
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{
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return (linuxkpi_request_firmware(fw, fw_name, dev));
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}
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static __inline int
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firmware_request_nowarn(const struct linuxkpi_firmware **fw,
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const char *fw_name, struct device *dev)
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{
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return (linuxkpi_firmware_request_nowarn(fw, fw_name, dev));
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}
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static __inline void
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release_firmware(const struct linuxkpi_firmware *fw)
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{
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linuxkpi_release_firmware(fw);
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}
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static inline int
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request_partial_firmware_into_buf(const struct linuxkpi_firmware **fw,
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const char *fw_name, struct device *dev, void *buf, size_t buflen,
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size_t offset)
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{
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return (linuxkpi_request_partial_firmware_into_buf(fw, fw_name,
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dev, buf, buflen, offset));
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}
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#define firmware linuxkpi_firmware
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#endif /* _LINUXKPI_LINUX_FIRMWARE_H */
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