a2148377b5
This patch moves the traditional POSIX stdbool.h definitions out from stdint.h into their own file. This helps for using these definitions in commonlib code which may be compiled in different environments. For coreboot everything should chain-include this stuff via types.h anyway so nothing should change. Change-Id: Ic8d52be80b64d8e9564f3aee8975cb25e4c187f5 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36837 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
80 lines
2.0 KiB
C
80 lines
2.0 KiB
C
/*
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* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef __VPD_H__
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#define __VPD_H__
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#include <types.h>
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#define GOOGLE_VPD_2_0_OFFSET 0x600
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enum vpd_region {
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VPD_ANY = 0,
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VPD_RO = 1,
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VPD_RW = 2
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};
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/* VPD 2.0 data blob structure */
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struct vpd_blob {
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bool initialized;
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uint8_t *ro_base;
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uint32_t ro_size;
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uint8_t *rw_base;
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uint32_t rw_size;
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};
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extern struct vpd_blob g_vpd_blob;
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/*
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* This function loads g_vpd_blob CAR_GLOBAL variable.
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* The variable is initialized if it was not.
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*/
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const struct vpd_blob *vpd_load_blob(void);
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/*
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* This function gets the base address and size of
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* buffers for RO_VPD/RW_VPD binary blobs, and sets
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* the struct.
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*/
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void vpd_get_buffers(struct vpd_blob *blob);
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/*
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* Reads VPD string value by key.
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*
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* Reads in at most one less than size characters from VPD and stores them
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* into buffer. A terminating null byte ('\0') is stored after the last
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* character in the buffer.
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*
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* Returns NULL if key is not found, otherwise buffer.
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*/
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char *vpd_gets(const char *key, char *buffer, int size, enum vpd_region region);
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/*
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* Find VPD value by key.
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*
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* Searches for a VPD entry in the VPD cache. If found, places the size of the
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* entry into '*size' and returns the pointer to the entry data.
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*
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* This function presumes that VPD is cached in DRAM (which is the case in the
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* current implementation) and as such returns the pointer into the cache. The
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* user is not supposed to modify the data, and does not have to free the
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* memory.
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*
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* Returns NULL if key is not found.
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*/
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const void *vpd_find(const char *key, int *size, enum vpd_region region);
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/*
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* Find value of boolean type vpd key.
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*
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* During the process, necessary checking is done, such as making
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* sure the value length is 1, and value is either '1' or '0'.
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*/
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bool vpd_get_bool(const char *key, enum vpd_region region,
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uint8_t *val);
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#endif /* __VPD_H__ */
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