58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/* Copyright 2018 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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* implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __LIBFLASH_IPMI_HIOMAP_H
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#define __LIBFLASH_IPMI_HIOMAP_H
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#include <lock.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include "blocklevel.h"
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enum lpc_window_state { closed_window, read_window, write_window };
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struct lpc_window {
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uint32_t lpc_addr; /* Offset into LPC space */
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uint32_t cur_pos; /* Current position of the window in the flash */
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uint32_t size; /* Size of the window into the flash */
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};
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struct ipmi_hiomap {
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/* Members protected by the blocklevel lock */
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uint8_t seq;
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uint8_t version;
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uint8_t block_size_shift;
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uint16_t timeout;
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struct blocklevel_device bl;
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uint32_t total_size;
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uint32_t erase_granule;
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struct lpc_window current;
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/*
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* update, bmc_state and window_state can be accessed by both calls
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* through read/write/erase functions and the IPMI SEL handler. All
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* three variables are protected by lock to avoid conflict.
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*/
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struct lock lock;
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uint8_t bmc_state;
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enum lpc_window_state window_state;
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};
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int ipmi_hiomap_init(struct blocklevel_device **bl);
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void ipmi_hiomap_exit(struct blocklevel_device *bl);
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#endif /* __LIBFLASH_IPMI_HIOMAP_H */
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