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Diffstat (limited to 'include/fs_loader.h')
-rw-r--r-- | include/fs_loader.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/include/fs_loader.h b/include/fs_loader.h new file mode 100644 index 00000000000..0be4f17e632 --- /dev/null +++ b/include/fs_loader.h @@ -0,0 +1,79 @@ +/* + * Copyright (C) 2018 Intel Corporation <www.intel.com> + * + * SPDX-License-Identifier: GPL-2.0 + */ +#ifndef _FS_LOADER_H_ +#define _FS_LOADER_H_ + +#include <dm.h> + +/** + * struct firmware - A place for storing firmware and its attribute data. + * + * This holds information about a firmware and its content. + * + * @size: Size of a file + * @data: Buffer for file + * @priv: Firmware loader private fields + */ +struct firmware { + size_t size; + const u8 *data; + void *priv; +}; + +/** + * struct phandle_part - A place for storing phandle of node and its partition + * + * This holds information about a phandle of the block device, and its + * partition where the firmware would be loaded from. + * + * @phandle: Phandle of storage device node + * @partition: Partition of block device + */ +struct phandle_part { + u32 phandle; + u32 partition; +}; + +/** + * struct phandle_part - A place for storing all supported storage devices + * + * This holds information about all supported storage devices for driver use. + * + * @phandlepart: Attribute data for block device. + * @mtdpart: MTD partition for ubi partition. + * @ubivol: UBI volume-name for ubifsmount. + */ +struct device_platdata { + struct phandle_part phandlepart; + char *mtdpart; + char *ubivol; +}; + +/** + * release_firmware - Release the resource associated with a firmware image + * @firmware: Firmware resource to release + */ +void release_firmware(struct firmware *firmware); + +/** + * request_firmware_into_buf - Load firmware into a previously allocated buffer. + * @plat: Platform data such as storage and partition firmware loading from. + * @name: Name of firmware file. + * @buf: Address of buffer to load firmware into. + * @size: Size of buffer. + * @offset: Offset of a file for start reading into buffer. + * @firmwarep: Pointer to firmware image. + * + * The firmware is loaded directly into the buffer pointed to by @buf and + * the @firmwarep data member is pointed at @buf. + * + * Return: Size of total read, negative value when error. + */ +int request_firmware_into_buf(struct device_platdata *plat, + const char *name, + void *buf, size_t size, u32 offset, + struct firmware **firmwarep); +#endif |