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// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
/* Copyright 2018-2019 IBM Corp. */
#ifndef __LIBFLASH_IPMI_HIOMAP_H
#define __LIBFLASH_IPMI_HIOMAP_H
#include <lock.h>
#include <stdbool.h>
#include <stdint.h>
#include "blocklevel.h"
enum lpc_window_state { closed_window, read_window, write_window };
struct lpc_window {
uint32_t lpc_addr; /* Offset into LPC space */
uint32_t cur_pos; /* Current position of the window in the flash */
uint32_t size; /* Size of the window into the flash */
};
struct ipmi_hiomap {
/* Members protected by the blocklevel lock */
uint8_t seq;
uint8_t version;
uint8_t block_size_shift;
uint16_t timeout;
struct blocklevel_device bl;
uint32_t total_size;
uint32_t erase_granule;
struct lpc_window current;
/*
* update, bmc_state and window_state can be accessed by both calls
* through read/write/erase functions and the IPMI SEL handler. All
* three variables are protected by lock to avoid conflict.
*/
struct lock lock;
uint8_t bmc_state;
enum lpc_window_state window_state;
};
int ipmi_hiomap_init(struct blocklevel_device **bl);
bool ipmi_hiomap_exit(struct blocklevel_device *bl);
#endif /* __LIBFLASH_IPMI_HIOMAP_H */
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