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sys/boot/efi/boot1/boot_module.h
- This file was added.
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/*- | |||||
* Copyright (c) 2015 Eric McCorkle | |||||
* All rights reserved. | |||||
* | |||||
* 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 AUTHOR 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 AUTHOR 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. | |||||
* | |||||
* $FreeBSD$ | |||||
*/ | |||||
#ifndef _BOOT_MODULE_H_ | |||||
#define _BOOT_MODULE_H_ | |||||
#include <stdbool.h> | |||||
#include <efi.h> | |||||
#include <efilib.h> | |||||
#include <eficonsctl.h> | |||||
#ifdef EFI_DEBUG | |||||
#define DPRINTF(fmt, args...) \ | |||||
do { \ | |||||
printf(fmt, ##args) \ | |||||
} while (0) | |||||
#else | |||||
#define DPRINTF(fmt, args...) {} | |||||
#endif | |||||
/* EFI device info */ | |||||
typedef struct dev_info | |||||
{ | |||||
EFI_BLOCK_IO *dev; | |||||
EFI_DEVICE_PATH *devpath; | |||||
EFI_HANDLE *devhandle; | |||||
void *devdata; | |||||
struct dev_info *next; | |||||
} dev_info_t; | |||||
/* | |||||
* A boot loader module. | |||||
* | |||||
* This is a standard interface for filesystem modules in the EFI system. | |||||
*/ | |||||
typedef struct boot_module_t | |||||
{ | |||||
const char *name; | |||||
/* init is the optional initialiser for the module. */ | |||||
void (*init)(); | |||||
/* | |||||
* probe checks to see if the module can handle dev. | |||||
* | |||||
* Return codes: | |||||
* EFI_SUCCESS = The module can handle the device. | |||||
* EFI_NOT_FOUND = The module can not handle the device. | |||||
* Other = The module encountered an error. | |||||
*/ | |||||
EFI_STATUS (*probe)(dev_info_t* dev); | |||||
/* | |||||
* load should select the best out of a set of devices that probe | |||||
* indicated were loadable and load it. | |||||
* | |||||
* Return codes: | |||||
* EFI_SUCCESS = The module can handle the device. | |||||
* EFI_NOT_FOUND = The module can not handle the device. | |||||
* Other = The module encountered an error. | |||||
*/ | |||||
EFI_STATUS (*load)(const char *loader_path, dev_info_t **devinfo, | |||||
void **buf, size_t *bufsize); | |||||
/* status outputs information about the probed devices. */ | |||||
void (*status)(); | |||||
} boot_module_t; | |||||
/* Standard boot modules. */ | |||||
#ifdef EFI_UFS_BOOT | |||||
extern const boot_module_t ufs_module; | |||||
#endif | |||||
#ifdef EFI_ZFS_BOOT | |||||
extern const boot_module_t zfs_module; | |||||
#endif | |||||
/* Functions available to modules. */ | |||||
extern void add_device(dev_info_t **devinfop, dev_info_t *devinfo); | |||||
extern void panic(const char *fmt, ...) __dead2; | |||||
extern int printf(const char *fmt, ...); | |||||
extern int vsnprintf(char *str, size_t sz, const char *fmt, va_list ap); | |||||
extern EFI_SYSTEM_TABLE *systab; | |||||
extern EFI_BOOT_SERVICES *bs; | |||||
#endif |