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The NAND Flash environment consists of several distinct components: - NAND framework (drivers harness for NAND controllers and NAND chips) - NAND simulator (NANDsim) - NAND file system (NAND FS) - Companion tools and utilities - Documentation (manual pages) This work is still experimental. Please use with caution. Obtained from: Semihalf Supported by: FreeBSD Foundation, Juniper Networks
160 lines
4.1 KiB
C
160 lines
4.1 KiB
C
/*-
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* Copyright (C) 2009-2012 Semihalf
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _NANDSIM_CHIP_H
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#define _NANDSIM_CHIP_H
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#include <sys/malloc.h>
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#include <sys/callout.h>
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#include <dev/nand/nand.h>
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#include <dev/nand/nandsim.h>
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#include <dev/nand/nandsim_swap.h>
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MALLOC_DECLARE(M_NANDSIM);
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#define MAX_CS_NUM 4
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struct nandsim_chip;
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typedef void nandsim_evh_t(struct nandsim_chip *chip, uint32_t ev, void *data);
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enum addr_type {
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ADDR_NONE,
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ADDR_ID,
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ADDR_ROW,
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ADDR_ROWCOL
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};
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struct nandsim_softc {
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struct nand_softc nand_dev;
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device_t dev;
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struct nandsim_chip *chips[MAX_CS_NUM];
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struct nandsim_chip *active_chip;
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uint8_t address_cycle;
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enum addr_type address_type;
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int log_idx;
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char *log_buff;
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struct alq *alq;
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};
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struct nandsim_ev {
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STAILQ_ENTRY(nandsim_ev) links;
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struct nandsim_chip *chip;
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uint8_t type;
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void *data;
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};
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struct nandsim_data {
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uint8_t *data_ptr;
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uint32_t index;
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uint32_t size;
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};
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struct nandsim_block_state {
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int32_t wear_lev;
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uint8_t is_bad;
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};
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#define NANDSIM_CHIP_ACTIVE 0x1
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#define NANDSIM_CHIP_FROZEN 0x2
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#define NANDSIM_CHIP_GET_STATUS 0x4
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struct nandsim_chip {
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struct nandsim_softc *sc;
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struct thread *nandsim_td;
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STAILQ_HEAD(, nandsim_ev) nandsim_events;
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nandsim_evh_t *ev_handler;
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struct mtx ns_lock;
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struct callout ns_callout;
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struct chip_geom cg;
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struct nand_id id;
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struct onfi_params params;
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struct nandsim_data data;
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struct nandsim_block_state *blk_state;
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struct chip_swap *swap;
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uint32_t error_ratio;
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uint32_t wear_level;
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uint32_t sm_state;
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uint32_t sm_addr_cycle;
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uint32_t erase_delay;
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uint32_t prog_delay;
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uint32_t read_delay;
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struct timeval delay_tv;
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uint8_t flags;
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uint8_t chip_status;
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uint8_t ctrl_num;
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uint8_t chip_num;
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};
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struct sim_ctrl_conf {
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uint8_t num;
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uint8_t num_cs;
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uint8_t ecc;
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uint8_t running;
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uint8_t created;
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device_t sim_ctrl_dev;
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struct sim_chip *chips[MAX_CTRL_CS];
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uint16_t ecc_layout[MAX_ECC_BYTES];
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char filename[FILENAME_SIZE];
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};
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#define NANDSIM_STATE_IDLE 0x0
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#define NANDSIM_STATE_WAIT_ADDR_BYTE 0x1
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#define NANDSIM_STATE_WAIT_CMD 0x2
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#define NANDSIM_STATE_TIMEOUT 0x3
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#define NANDSIM_STATE_WAIT_ADDR_ROW 0x4
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#define NANDSIM_STATE_WAIT_ADDR_COL 0x5
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#define NANDSIM_EV_START 0x1
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#define NANDSIM_EV_CMD 0x2
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#define NANDSIM_EV_ADDR 0x3
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#define NANDSIM_EV_TIMEOUT 0x4
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#define NANDSIM_EV_EXIT 0xff
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struct nandsim_chip *nandsim_chip_init(struct nandsim_softc *,
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uint8_t, struct sim_chip *);
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void nandsim_chip_destroy(struct nandsim_chip *);
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void nandsim_chip_freeze(struct nandsim_chip *);
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void nandsim_chip_timeout(struct nandsim_chip *);
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int nandsim_chip_check_bad_block(struct nandsim_chip *, int);
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uint8_t nandchip_get_status(struct nandsim_chip *);
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void destroy_event(struct nandsim_ev *);
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int send_event(struct nandsim_ev *);
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struct nandsim_ev *create_event(struct nandsim_chip *, uint8_t, uint8_t);
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#endif /* _NANDSIM_CHIP_H */
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