u-boot/include/config_fallbacks.h
Przemyslaw Marczak 4e4815feae lib: uuid: add functions to generate UUID version 4
This patch adds support to generate UUID (Universally Unique Identifier)
in version 4 based on RFC4122, which is randomly.

Source: https://www.ietf.org/rfc/rfc4122.txt

Changes:
- new configs:
  - CONFIG_LIB_UUID for compile lib/uuid.c
  - CONFIG_RANDOM_UUID for functions gen_rand_uuid() and gen_rand_uuid_str()
- add configs dependency to include/config_fallbacks.h for lib uuid.

lib/uuid.c:
- add gen_rand_uuid() - this function writes 16 bytes len binary representation
  of UUID v4 to the memory at given address.

- add gen_rand_uuid_str() - this function writes 37 bytes len hexadecimal
  ASCII string representation of UUID v4 to the memory at given address.

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
[trini: Add CONFIG_EFI_PARTITION to fallbacks]
Signed-off-by: Tom Rini <trini@ti.com>
2014-04-02 16:35:53 -04:00

81 lines
1.9 KiB
C

/*
* Copyright 2012 Texas Instruments
*
* This file is licensed under the terms of the GNU General Public
* License Version 2. This file is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#ifndef __CONFIG_FALLBACKS_H
#define __CONFIG_FALLBACKS_H
#ifdef CONFIG_SPL
#ifdef CONFIG_SPL_PAD_TO
#ifdef CONFIG_SPL_MAX_SIZE
#if CONFIG_SPL_PAD_TO && CONFIG_SPL_PAD_TO < CONFIG_SPL_MAX_SIZE
#error CONFIG_SPL_PAD_TO < CONFIG_SPL_MAX_SIZE
#endif
#endif
#else
#ifdef CONFIG_SPL_MAX_SIZE
#define CONFIG_SPL_PAD_TO CONFIG_SPL_MAX_SIZE
#else
#define CONFIG_SPL_PAD_TO 0
#endif
#endif
#endif
#ifndef CONFIG_SYS_BAUDRATE_TABLE
#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
#endif
#if defined(CONFIG_CMD_FAT) && !defined(CONFIG_FS_FAT)
#define CONFIG_FS_FAT
#endif
#if (defined(CONFIG_CMD_EXT4) || defined(CONFIG_CMD_EXT2)) && \
!defined(CONFIG_FS_EXT4)
#define CONFIG_FS_EXT4
#endif
#if defined(CONFIG_CMD_EXT4_WRITE) && !defined(CONFIG_EXT4_WRITE)
#define CONFIG_EXT4_WRITE
#endif
/* Rather than repeat this expression each time, add a define for it */
#if defined(CONFIG_CMD_IDE) || \
defined(CONFIG_CMD_SATA) || \
defined(CONFIG_CMD_SCSI) || \
defined(CONFIG_CMD_USB) || \
defined(CONFIG_CMD_PART) || \
defined(CONFIG_CMD_GPT) || \
defined(CONFIG_MMC) || \
defined(CONFIG_SYSTEMACE) || \
defined(CONFIG_SANDBOX)
#define HAVE_BLOCK_DEVICE
#endif
#if (defined(CONFIG_PARTITION_UUIDS) || \
defined(CONFIG_EFI_PARTITION) || \
defined(CONFIG_RANDOM_UUID) || \
defined(CONFIG_BOOTP_PXE)) && \
!defined(CONFIG_LIB_UUID)
#define CONFIG_LIB_UUID
#endif
#if defined(CONFIG_RANDOM_UUID) && \
!defined(CONFIG_LIB_RAND) && \
!defined(CONFIG_LIB_HW_RAND)
#define CONFIG_LIB_RAND
#endif
#ifndef CONFIG_SYS_PROMPT
#define CONFIG_SYS_PROMPT "=> "
#endif
#ifndef CONFIG_SYS_HZ
#define CONFIG_SYS_HZ 1000
#endif
#endif /* __CONFIG_FALLBACKS_H */