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Diffstat (limited to 'sys/dev/nand/nandsim_ctrl.c')
-rw-r--r--sys/dev/nand/nandsim_ctrl.c398
1 files changed, 0 insertions, 398 deletions
diff --git a/sys/dev/nand/nandsim_ctrl.c b/sys/dev/nand/nandsim_ctrl.c
deleted file mode 100644
index bc203902fe7e..000000000000
--- a/sys/dev/nand/nandsim_ctrl.c
+++ /dev/null
@@ -1,398 +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.
- */
-
-/* Simulated NAND controller driver */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/proc.h>
-#include <sys/bus.h>
-#include <sys/conf.h>
-#include <sys/kernel.h>
-#include <sys/module.h>
-#include <sys/rman.h>
-#include <sys/lock.h>
-#include <sys/mutex.h>
-#include <sys/time.h>
-
-#include <dev/nand/nand.h>
-#include <dev/nand/nandbus.h>
-#include <dev/nand/nandsim.h>
-#include <dev/nand/nandsim_log.h>
-#include <dev/nand/nandsim_chip.h>
-#include "nfc_if.h"
-
-#define ADDRESS_SIZE 5
-
-extern struct sim_ctrl_conf ctrls[MAX_SIM_DEV];
-
-static void byte_corrupt(struct nandsim_chip *, uint8_t *);
-
-static int nandsim_attach(device_t);
-static int nandsim_detach(device_t);
-static int nandsim_probe(device_t);
-
-static uint8_t nandsim_read_byte(device_t);
-static uint16_t nandsim_read_word(device_t);
-static int nandsim_select_cs(device_t, uint8_t);
-static void nandsim_write_byte(device_t, uint8_t);
-static void nandsim_write_word(device_t, uint16_t);
-static void nandsim_read_buf(device_t, void *, uint32_t);
-static void nandsim_write_buf(device_t, void *, uint32_t);
-static int nandsim_send_command(device_t, uint8_t);
-static int nandsim_send_address(device_t, uint8_t);
-
-static device_method_t nandsim_methods[] = {
- DEVMETHOD(device_probe, nandsim_probe),
- DEVMETHOD(device_attach, nandsim_attach),
- DEVMETHOD(device_detach, nandsim_detach),
-
- DEVMETHOD(nfc_select_cs, nandsim_select_cs),
- DEVMETHOD(nfc_send_command, nandsim_send_command),
- DEVMETHOD(nfc_send_address, nandsim_send_address),
- DEVMETHOD(nfc_read_byte, nandsim_read_byte),
- DEVMETHOD(nfc_read_word, nandsim_read_word),
- DEVMETHOD(nfc_write_byte, nandsim_write_byte),
- DEVMETHOD(nfc_read_buf, nandsim_read_buf),
- DEVMETHOD(nfc_write_buf, nandsim_write_buf),
-
- { 0, 0 },
-};
-
-static driver_t nandsim_driver = {
- "nandsim",
- nandsim_methods,
- sizeof(struct nandsim_softc),
-};
-
-static devclass_t nandsim_devclass;
-DRIVER_MODULE(nandsim, nexus, nandsim_driver, nandsim_devclass, 0, 0);
-DRIVER_MODULE(nandbus, nandsim, nandbus_driver, nandbus_devclass, 0, 0);
-
-static int
-nandsim_probe(device_t dev)
-{
-
- device_set_desc(dev, "NAND controller simulator");
- return (BUS_PROBE_DEFAULT);
-}
-
-static int
-nandsim_attach(device_t dev)
-{
- struct nandsim_softc *sc;
- struct sim_ctrl_conf *params;
- struct sim_chip *chip;
- uint16_t *eccpos;
- int i, err;
-
- sc = device_get_softc(dev);
- params = &ctrls[device_get_unit(dev)];
-
- if (strlen(params->filename) == 0)
- snprintf(params->filename, FILENAME_SIZE, "ctrl%d.log",
- params->num);
-
- nandsim_log_init(sc, params->filename);
- for (i = 0; i < params->num_cs; i++) {
- chip = params->chips[i];
- if (chip && chip->device_id != 0) {
- sc->chips[i] = nandsim_chip_init(sc, i, chip);
- if (chip->features & ONFI_FEAT_16BIT)
- sc->nand_dev.flags |= NAND_16_BIT;
- }
- }
-
- if (params->ecc_layout[0] != 0xffff)
- eccpos = params->ecc_layout;
- else
- eccpos = NULL;
-
- nand_init(&sc->nand_dev, dev, params->ecc, 0, 0, eccpos, "nandsim");
-
- err = nandbus_create(dev);
-
- return (err);
-}
-
-static int
-nandsim_detach(device_t dev)
-{
- struct nandsim_softc *sc;
- struct sim_ctrl_conf *params;
- int i;
-
- sc = device_get_softc(dev);
- params = &ctrls[device_get_unit(dev)];
-
- for (i = 0; i < params->num_cs; i++)
- if (sc->chips[i] != NULL)
- nandsim_chip_destroy(sc->chips[i]);
-
- nandsim_log_close(sc);
-
- return (0);
-}
-
-static int
-nandsim_select_cs(device_t dev, uint8_t cs)
-{
- struct nandsim_softc *sc;
-
- sc = device_get_softc(dev);
-
- if (cs >= MAX_CS_NUM)
- return (EINVAL);
-
- sc->active_chip = sc->chips[cs];
-
- if (sc->active_chip)
- nandsim_log(sc->active_chip, NANDSIM_LOG_EV,
- "Select cs %d\n", cs);
-
- return (0);
-}
-
-static int
-nandsim_send_command(device_t dev, uint8_t command)
-{
- struct nandsim_softc *sc;
- struct nandsim_chip *chip;
- struct nandsim_ev *ev;
-
- sc = device_get_softc(dev);
- chip = sc->active_chip;
-
- if (chip == NULL)
- return (0);
-
- nandsim_log(chip, NANDSIM_LOG_EV, "Send command %x\n", command);
-
- switch (command) {
- case NAND_CMD_READ_ID:
- case NAND_CMD_READ_PARAMETER:
- sc->address_type = ADDR_ID;
- break;
- case NAND_CMD_ERASE:
- sc->address_type = ADDR_ROW;
- break;
- case NAND_CMD_READ:
- case NAND_CMD_PROG:
- sc->address_type = ADDR_ROWCOL;
- break;
- default:
- sc->address_type = ADDR_NONE;
- break;
- }
-
- if (command == NAND_CMD_STATUS)
- chip->flags |= NANDSIM_CHIP_GET_STATUS;
- else {
- ev = create_event(chip, NANDSIM_EV_CMD, 1);
- *(uint8_t *)ev->data = command;
- send_event(ev);
- }
-
- return (0);
-}
-
-static int
-nandsim_send_address(device_t dev, uint8_t addr)
-{
- struct nandsim_ev *ev;
- struct nandsim_softc *sc;
- struct nandsim_chip *chip;
-
- sc = device_get_softc(dev);
- chip = sc->active_chip;
-
- if (chip == NULL)
- return (0);
-
- KASSERT((sc->address_type != ADDR_NONE), ("unexpected address"));
- nandsim_log(chip, NANDSIM_LOG_EV, "Send addr %x\n", addr);
-
- ev = create_event(chip, NANDSIM_EV_ADDR, 1);
-
- *((uint8_t *)(ev->data)) = addr;
-
- send_event(ev);
- return (0);
-}
-
-static uint8_t
-nandsim_read_byte(device_t dev)
-{
- struct nandsim_softc *sc;
- struct nandsim_chip *chip;
- uint8_t ret = 0xff;
-
- sc = device_get_softc(dev);
- chip = sc->active_chip;
-
- if (chip && !(chip->flags & NANDSIM_CHIP_FROZEN)) {
- if (chip->flags & NANDSIM_CHIP_GET_STATUS) {
- nandsim_chip_timeout(chip);
- ret = nandchip_get_status(chip);
- chip->flags &= ~NANDSIM_CHIP_GET_STATUS;
- } else if (chip->data.index < chip->data.size) {
- ret = chip->data.data_ptr[chip->data.index++];
- byte_corrupt(chip, &ret);
- }
- nandsim_log(chip, NANDSIM_LOG_DATA, "read %02x\n", ret);
- }
-
- return (ret);
-}
-
-static uint16_t
-nandsim_read_word(device_t dev)
-{
- struct nandsim_softc *sc;
- struct nandsim_chip *chip;
- uint16_t *data_ptr;
- uint16_t ret = 0xffff;
- uint8_t *byte_ret = (uint8_t *)&ret;
-
- sc = device_get_softc(dev);
- chip = sc->active_chip;
-
- if (chip && !(chip->flags & NANDSIM_CHIP_FROZEN)) {
- if (chip->data.index < chip->data.size - 1) {
- data_ptr =
- (uint16_t *)&(chip->data.data_ptr[chip->data.index]);
- ret = *data_ptr;
- chip->data.index += 2;
- byte_corrupt(chip, byte_ret);
- byte_corrupt(chip, byte_ret + 1);
- }
- nandsim_log(chip, NANDSIM_LOG_DATA, "read %04x\n", ret);
- }
-
- return (ret);
-}
-
-static void
-nandsim_write_byte(device_t dev, uint8_t byte)
-{
- struct nandsim_softc *sc;
- struct nandsim_chip *chip;
-
- sc = device_get_softc(dev);
- chip = sc->active_chip;
-
- if (chip && !(chip->flags & NANDSIM_CHIP_FROZEN) &&
- (chip->data.index < chip->data.size)) {
- byte_corrupt(chip, &byte);
- chip->data.data_ptr[chip->data.index] &= byte;
- chip->data.index++;
- nandsim_log(chip, NANDSIM_LOG_DATA, "write %02x\n", byte);
- }
-}
-
-static void
-nandsim_write_word(device_t dev, uint16_t word)
-{
- struct nandsim_softc *sc;
- struct nandsim_chip *chip;
- uint16_t *data_ptr;
- uint8_t *byte_ptr = (uint8_t *)&word;
-
- sc = device_get_softc(dev);
- chip = sc->active_chip;
-
- if (chip && !(chip->flags & NANDSIM_CHIP_FROZEN)) {
- if ((chip->data.index + 1) < chip->data.size) {
- byte_corrupt(chip, byte_ptr);
- byte_corrupt(chip, byte_ptr + 1);
- data_ptr =
- (uint16_t *)&(chip->data.data_ptr[chip->data.index]);
- *data_ptr &= word;
- chip->data.index += 2;
- }
-
- nandsim_log(chip, NANDSIM_LOG_DATA, "write %04x\n", word);
- }
-}
-
-static void
-nandsim_read_buf(device_t dev, void *buf, uint32_t len)
-{
- struct nandsim_softc *sc;
- uint16_t *buf16 = (uint16_t *)buf;
- uint8_t *buf8 = (uint8_t *)buf;
- int i;
-
- sc = device_get_softc(dev);
-
- if (sc->nand_dev.flags & NAND_16_BIT) {
- for (i = 0; i < len / 2; i++)
- buf16[i] = nandsim_read_word(dev);
- } else {
- for (i = 0; i < len; i++)
- buf8[i] = nandsim_read_byte(dev);
- }
-}
-
-static void
-nandsim_write_buf(device_t dev, void *buf, uint32_t len)
-{
- struct nandsim_softc *sc;
- uint16_t *buf16 = (uint16_t *)buf;
- uint8_t *buf8 = (uint8_t *)buf;
- int i;
-
- sc = device_get_softc(dev);
-
- if (sc->nand_dev.flags & NAND_16_BIT) {
- for (i = 0; i < len / 2; i++)
- nandsim_write_word(dev, buf16[i]);
- } else {
- for (i = 0; i < len; i++)
- nandsim_write_byte(dev, buf8[i]);
- }
-}
-
-static void
-byte_corrupt(struct nandsim_chip *chip, uint8_t *byte)
-{
- uint32_t rand;
- uint8_t bit;
-
- rand = random();
- if ((rand % 1000000) < chip->error_ratio) {
- bit = rand % 8;
- if (*byte & (1 << bit))
- *byte &= ~(1 << bit);
- else
- *byte |= (1 << bit);
- }
-}