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Diffstat (limited to 'sys/dev/nand/nand_cdev.c')
-rw-r--r--sys/dev/nand/nand_cdev.c454
1 files changed, 0 insertions, 454 deletions
diff --git a/sys/dev/nand/nand_cdev.c b/sys/dev/nand/nand_cdev.c
deleted file mode 100644
index 53c62dbc2913..000000000000
--- a/sys/dev/nand/nand_cdev.c
+++ /dev/null
@@ -1,454 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
- *
- * Copyright (C) 2009-2012 Semihalf
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/conf.h>
-#include <sys/bus.h>
-#include <sys/malloc.h>
-#include <sys/uio.h>
-#include <sys/bio.h>
-
-#include <dev/nand/nand.h>
-#include <dev/nand/nandbus.h>
-#include <dev/nand/nand_dev.h>
-#include "nand_if.h"
-#include "nandbus_if.h"
-
-static int nand_page_stat(struct nand_chip *, struct page_stat_io *);
-static int nand_block_stat(struct nand_chip *, struct block_stat_io *);
-
-static d_ioctl_t nand_ioctl;
-static d_open_t nand_open;
-static d_strategy_t nand_strategy;
-
-static struct cdevsw nand_cdevsw = {
- .d_version = D_VERSION,
- .d_name = "nand",
- .d_open = nand_open,
- .d_read = physread,
- .d_write = physwrite,
- .d_ioctl = nand_ioctl,
- .d_strategy = nand_strategy,
-};
-
-static int
-offset_to_page(struct chip_geom *cg, uint32_t offset)
-{
-
- return (offset / cg->page_size);
-}
-
-static int
-offset_to_page_off(struct chip_geom *cg, uint32_t offset)
-{
-
- return (offset % cg->page_size);
-}
-
-int
-nand_make_dev(struct nand_chip *chip)
-{
- struct nandbus_ivar *ivar;
- device_t parent, nandbus;
- int parent_unit, unit;
- char *name;
-
- ivar = device_get_ivars(chip->dev);
- nandbus = device_get_parent(chip->dev);
-
- if (ivar->chip_cdev_name) {
- name = ivar->chip_cdev_name;
-
- /*
- * If we got distinct name for chip device we can enumarete it
- * based on contoller number.
- */
- parent = device_get_parent(nandbus);
- } else {
- name = "nand";
- parent = nandbus;
- }
-
- parent_unit = device_get_unit(parent);
- unit = parent_unit * 4 + chip->num;
- chip->cdev = make_dev(&nand_cdevsw, unit, UID_ROOT, GID_WHEEL,
- 0666, "%s%d.%d", name, parent_unit, chip->num);
-
- if (chip->cdev == NULL)
- return (ENXIO);
-
- if (bootverbose)
- device_printf(chip->dev, "Created cdev %s%d.%d for chip "
- "[0x%0x, 0x%0x]\n", name, parent_unit, chip->num,
- ivar->man_id, ivar->dev_id);
-
- chip->cdev->si_drv1 = chip;
-
- return (0);
-}
-
-void
-nand_destroy_dev(struct nand_chip *chip)
-{
-
- if (chip->cdev)
- destroy_dev(chip->cdev);
-}
-
-static int
-nand_open(struct cdev *dev, int oflags, int devtype, struct thread *td)
-{
-
- return (0);
-}
-
-static int
-nand_read(struct nand_chip *chip, uint32_t offset, void *buf, uint32_t len)
-{
- struct chip_geom *cg;
- device_t nandbus;
- int start_page, count, off, err = 0;
- uint8_t *ptr, *tmp;
-
- nand_debug(NDBG_CDEV, "Read from chip%d [%p] at %d\n", chip->num,
- chip, offset);
-
- nandbus = device_get_parent(chip->dev);
- NANDBUS_LOCK(nandbus);
- NANDBUS_SELECT_CS(device_get_parent(chip->dev), chip->num);
-
- cg = &chip->chip_geom;
- start_page = offset_to_page(cg, offset);
- off = offset_to_page_off(cg, offset);
- count = (len > cg->page_size - off) ? cg->page_size - off : len;
-
- ptr = (uint8_t *)buf;
- while (len > 0) {
- if (len < cg->page_size) {
- tmp = malloc(cg->page_size, M_NAND, M_WAITOK);
- if (!tmp) {
- err = ENOMEM;
- break;
- }
- err = NAND_READ_PAGE(chip->dev, start_page,
- tmp, cg->page_size, 0);
- if (err) {
- free(tmp, M_NAND);
- break;
- }
- bcopy(tmp + off, ptr, count);
- free(tmp, M_NAND);
- } else {
- err = NAND_READ_PAGE(chip->dev, start_page,
- ptr, cg->page_size, 0);
- if (err)
- break;
- }
-
- len -= count;
- start_page++;
- ptr += count;
- count = (len > cg->page_size) ? cg->page_size : len;
- off = 0;
- }
-
- NANDBUS_UNLOCK(nandbus);
- return (err);
-}
-
-static int
-nand_write(struct nand_chip *chip, uint32_t offset, void* buf, uint32_t len)
-{
- struct chip_geom *cg;
- device_t nandbus;
- int off, start_page, err = 0;
- uint8_t *ptr;
-
- nand_debug(NDBG_CDEV, "Write to chip %d [%p] at %d\n", chip->num,
- chip, offset);
-
- nandbus = device_get_parent(chip->dev);
- NANDBUS_LOCK(nandbus);
- NANDBUS_SELECT_CS(device_get_parent(chip->dev), chip->num);
-
- cg = &chip->chip_geom;
- start_page = offset_to_page(cg, offset);
- off = offset_to_page_off(cg, offset);
-
- if (off != 0 || (len % cg->page_size) != 0) {
- printf("Not aligned write start [0x%08x] size [0x%08x]\n",
- off, len);
- NANDBUS_UNLOCK(nandbus);
- return (EINVAL);
- }
-
- ptr = (uint8_t *)buf;
- while (len > 0) {
- err = NAND_PROGRAM_PAGE(chip->dev, start_page, ptr,
- cg->page_size, 0);
- if (err)
- break;
-
- len -= cg->page_size;
- start_page++;
- ptr += cg->page_size;
- }
-
- NANDBUS_UNLOCK(nandbus);
- return (err);
-}
-
-static void
-nand_strategy(struct bio *bp)
-{
- struct nand_chip *chip;
- struct cdev *dev;
- int err = 0;
-
- dev = bp->bio_dev;
- chip = dev->si_drv1;
-
- nand_debug(NDBG_CDEV, "Strategy %s on chip %d [%p]\n",
- bp->bio_cmd == BIO_READ ? "READ" : "WRITE",
- chip->num, chip);
-
- if (bp->bio_cmd == BIO_READ) {
- err = nand_read(chip,
- bp->bio_offset & 0xffffffff,
- bp->bio_data, bp->bio_bcount);
- } else {
- err = nand_write(chip,
- bp->bio_offset & 0xffffffff,
- bp->bio_data, bp->bio_bcount);
- }
-
- if (err == 0)
- bp->bio_resid = 0;
- else {
- bp->bio_error = EIO;
- bp->bio_flags |= BIO_ERROR;
- bp->bio_resid = bp->bio_bcount;
- }
-
- biodone(bp);
-}
-
-static int
-nand_oob_access(struct nand_chip *chip, uint32_t page, uint32_t offset,
- uint32_t len, uint8_t *data, uint8_t write)
-{
- struct chip_geom *cg;
- uint8_t *buf = NULL;
- int ret = 0;
-
- cg = &chip->chip_geom;
-
- buf = malloc(cg->oob_size, M_NAND, M_WAITOK);
- if (!buf)
- return (ENOMEM);
-
- memset(buf, 0xff, cg->oob_size);
-
- if (!write) {
- ret = nand_read_oob(chip, page, buf, cg->oob_size);
- copyout(buf, data, len);
- } else {
- copyin(data, buf, len);
- ret = nand_prog_oob(chip, page, buf, cg->oob_size);
- }
-
- free(buf, M_NAND);
-
- return (ret);
-}
-
-static int
-nand_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
- struct thread *td)
-{
- struct nand_chip *chip;
- struct chip_geom *cg;
- struct nand_oob_rw *oob_rw = NULL;
- struct nand_raw_rw *raw_rw = NULL;
- device_t nandbus;
- size_t bufsize = 0, len = 0;
- size_t raw_size;
- off_t off;
- uint8_t *buf = NULL;
- int ret = 0;
- uint8_t status;
-
- chip = (struct nand_chip *)dev->si_drv1;
- cg = &chip->chip_geom;
- nandbus = device_get_parent(chip->dev);
-
- if ((cmd == NAND_IO_RAW_READ) || (cmd == NAND_IO_RAW_PROG)) {
- raw_rw = (struct nand_raw_rw *)data;
- raw_size = cg->pgs_per_blk * (cg->page_size + cg->oob_size);
-
- /* Check if len is not bigger than chip size */
- if (raw_rw->len > raw_size)
- return (EFBIG);
-
- /*
- * Do not ask for too much memory, in case of large transfers
- * read/write in 16-pages chunks
- */
- bufsize = 16 * (cg->page_size + cg->oob_size);
- if (raw_rw->len < bufsize)
- bufsize = raw_rw->len;
-
- buf = malloc(bufsize, M_NAND, M_WAITOK);
- len = raw_rw->len;
- off = 0;
- }
- switch(cmd) {
- case NAND_IO_ERASE:
- ret = nand_erase_blocks(chip, ((off_t *)data)[0],
- ((off_t *)data)[1]);
- break;
-
- case NAND_IO_OOB_READ:
- oob_rw = (struct nand_oob_rw *)data;
- ret = nand_oob_access(chip, oob_rw->page, 0,
- oob_rw->len, oob_rw->data, 0);
- break;
-
- case NAND_IO_OOB_PROG:
- oob_rw = (struct nand_oob_rw *)data;
- ret = nand_oob_access(chip, oob_rw->page, 0,
- oob_rw->len, oob_rw->data, 1);
- break;
-
- case NAND_IO_GET_STATUS:
- NANDBUS_LOCK(nandbus);
- ret = NANDBUS_GET_STATUS(nandbus, &status);
- if (ret == 0)
- *(uint8_t *)data = status;
- NANDBUS_UNLOCK(nandbus);
- break;
-
- case NAND_IO_RAW_PROG:
- while (len > 0) {
- if (len < bufsize)
- bufsize = len;
- ret = copyin(raw_rw->data + off, buf, bufsize);
- if (ret)
- break;
- ret = nand_prog_pages_raw(chip, raw_rw->off + off, buf,
- bufsize);
- if (ret)
- break;
- len -= bufsize;
- off += bufsize;
- }
- break;
-
- case NAND_IO_RAW_READ:
- while (len > 0) {
- if (len < bufsize)
- bufsize = len;
-
- ret = nand_read_pages_raw(chip, raw_rw->off + off, buf,
- bufsize);
- if (ret)
- break;
-
- ret = copyout(buf, raw_rw->data + off, bufsize);
- if (ret)
- break;
- len -= bufsize;
- off += bufsize;
- }
- break;
-
- case NAND_IO_PAGE_STAT:
- ret = nand_page_stat(chip, (struct page_stat_io *)data);
- break;
-
- case NAND_IO_BLOCK_STAT:
- ret = nand_block_stat(chip, (struct block_stat_io *)data);
- break;
-
- case NAND_IO_GET_CHIP_PARAM:
- nand_get_chip_param(chip, (struct chip_param_io *)data);
- break;
-
- default:
- printf("Unknown nand_ioctl request \n");
- ret = EIO;
- }
-
- if (buf)
- free(buf, M_NAND);
-
- return (ret);
-}
-
-static int
-nand_page_stat(struct nand_chip *chip, struct page_stat_io *page_stat)
-{
- struct chip_geom *cg;
- struct page_stat *stat;
- int num_pages;
-
- cg = &chip->chip_geom;
- num_pages = cg->pgs_per_blk * cg->blks_per_lun * cg->luns;
- if (page_stat->page_num >= num_pages)
- return (EINVAL);
-
- stat = &chip->pg_stat[page_stat->page_num];
- page_stat->page_read = stat->page_read;
- page_stat->page_written = stat->page_written;
- page_stat->page_raw_read = stat->page_raw_read;
- page_stat->page_raw_written = stat->page_raw_written;
- page_stat->ecc_succeded = stat->ecc_stat.ecc_succeded;
- page_stat->ecc_corrected = stat->ecc_stat.ecc_corrected;
- page_stat->ecc_failed = stat->ecc_stat.ecc_failed;
-
- return (0);
-}
-
-static int
-nand_block_stat(struct nand_chip *chip, struct block_stat_io *block_stat)
-{
- struct chip_geom *cg;
- uint32_t block_num = block_stat->block_num;
-
- cg = &chip->chip_geom;
- if (block_num >= cg->blks_per_lun * cg->luns)
- return (EINVAL);
-
- block_stat->block_erased = chip->blk_stat[block_num].block_erased;
-
- return (0);
-}