/* flashimg/cpu_main/flashio.h - DMA-safe flash storage
 *
 * Copyright (C) 2025  Luke T. Shumaker <lukeshu@lukeshu.com>
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

#ifndef _FLASHIMG_CPU_MAIN_FLASHIO_H_
#define _FLASHIMG_CPU_MAIN_FLASHIO_H_

#include <hardware/flash.h> /* for FLASH_SECTOR_SIZE */

#include <libcr_ipc/mutex.h>
#include <libhw/generic/io.h>
#include <libmisc/private.h>

struct flashio {
	BEGIN_PRIVATE(FLASHIO_H);
	uint8_t         dat[FLASH_SECTOR_SIZE];
	size_t          dat_pos;
	bool            dat_dirty;
	bool            dat_ok;
	cr_mutex_t      mu;
	END_PRIVATE(FLASHIO_H);
};
LO_IMPLEMENTATION_H(io_preader_to, struct flashio, flashio);
LO_IMPLEMENTATION_H(io_pwriter,    struct flashio, flashio);
LO_IMPLEMENTATION_H(io_flusher,    struct flashio, flashio);

#endif /* _FLASHIMG_CPU_MAIN_FLASHIO_H_ */