Pruned old RAMTRON interface

src/systemcmds/ramtron/module.mk

-#
-# RAMTRON file system driver
-#
-
-MODULE_COMMAND	 = ramtron
-SRCS		 = ramtron.c

src/systemcmds/ramtron/ramtron.c

-/****************************************************************************
- *
- *   Copyright (C) 2013 PX4 Development Team. All rights reserved.
- *   Author: Lorenz Meier <lm@inf.ethz.ch>
- *
- * 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.
- * 3. Neither the name PX4 nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
- * COPYRIGHT OWNER 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.
- *
- ****************************************************************************/
-
-/**
- * @file ramtron.c
- *
- * ramtron service and utility app.
- */
-
-#include <nuttx/config.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdbool.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/mount.h>
-#include <sys/ioctl.h>
-#include <sys/stat.h>
-
-#include <nuttx/spi.h>
-#include <nuttx/mtd.h>
-#include <nuttx/fs/nxffs.h>
-#include <nuttx/fs/ioctl.h>
-
-#include <arch/board/board.h>
-
-#include "systemlib/systemlib.h"
-#include "systemlib/param/param.h"
-#include "systemlib/err.h"
-
-__EXPORT int ramtron_main(int argc, char *argv[]);
-
-#ifndef CONFIG_MTD_RAMTRON
-
-/* create a fake command with decent message to not confuse users */
-int ramtron_main(int argc, char *argv[])
-{
-	errx(1, "RAMTRON not enabled, skipping.");
-}
-#else
-
-static void	ramtron_attach(void);
-static void	ramtron_start(void);
-static void	ramtron_erase(void);
-static void	ramtron_ioctl(unsigned operation);
-static void	ramtron_save(const char *name);
-static void	ramtron_load(const char *name);
-static void	ramtron_test(void);
-
-static bool attached = false;
-static bool started = false;
-static struct mtd_dev_s *ramtron_mtd;
-
-int ramtron_main(int argc, char *argv[])
-{
-	if (argc >= 2) {
-		if (!strcmp(argv[1], "start"))
-			ramtron_start();
-
-		if (!strcmp(argv[1], "save_param"))
-			ramtron_save(argv[2]);
-
-		if (!strcmp(argv[1], "load_param"))
-			ramtron_load(argv[2]);
-
-		if (!strcmp(argv[1], "erase"))
-			ramtron_erase();
-
-		if (!strcmp(argv[1], "test"))
-			ramtron_test();
-
-		if (0) {	/* these actually require a file on the filesystem... */
-
-			if (!strcmp(argv[1], "reformat"))
-				ramtron_ioctl(FIOC_REFORMAT);
-
-			if (!strcmp(argv[1], "repack"))
-				ramtron_ioctl(FIOC_OPTIMIZE);
-		}
-	}
-
-	errx(1, "expected a command, try 'start'\n\t'save_param /ramtron/parameters'\n\t'load_param /ramtron/parameters'\n\t'erase'\n");
-}
-
-struct mtd_dev_s *ramtron_initialize(FAR struct spi_dev_s *dev);
-
-
-static void
-ramtron_attach(void)
-{
-	/* find the right spi */
-	struct spi_dev_s *spi = up_spiinitialize(2);
-	/* this resets the spi bus, set correct bus speed again */
-    // xxx set in ramtron driver, leave this out
-//	SPI_SETFREQUENCY(spi, 4000000);
-	SPI_SETFREQUENCY(spi, 375000000);
-	SPI_SETBITS(spi, 8);
-	SPI_SETMODE(spi, SPIDEV_MODE3);
-	SPI_SELECT(spi, SPIDEV_FLASH, false);
-
-	if (spi == NULL)
-		errx(1, "failed to locate spi bus");
-
-	/* start the MTD driver, attempt 5 times */
-	for (int i = 0; i < 5; i++) {
-		ramtron_mtd = ramtron_initialize(spi);
-		if (ramtron_mtd) {
-			/* abort on first valid result */
-			if (i > 0) {
-				warnx("warning: ramtron needed %d attempts to attach", i+1);
-			}
-			break;
-		}
-	}
-
-	/* if last attempt is still unsuccessful, abort */
-	if (ramtron_mtd == NULL)
-		errx(1, "failed to initialize ramtron driver");
-
-	attached = true;
-}
-
-static void
-ramtron_start(void)
-{
-	int ret;
-
-	if (started)
-		errx(1, "ramtron already mounted");
-
-	if (!attached)
-		ramtron_attach();
-
-	/* start NXFFS */
-	ret = nxffs_initialize(ramtron_mtd);
-
-	if (ret < 0)
-		errx(1, "failed to initialize NXFFS - erase ramtron to reformat");
-
-	/* mount the ramtron */
-	ret = mount(NULL, "/ramtron", "nxffs", 0, NULL);
-
-	if (ret < 0)
-		errx(1, "failed to mount /ramtron - erase ramtron to reformat");
-
-	started = true;
-	warnx("mounted ramtron at /ramtron");
-	exit(0);
-}
-
-//extern int at24c_nuke(void);
-
-static void
-ramtron_erase(void)
-{
-	if (!attached)
-		ramtron_attach();
-
-//	if (at24c_nuke())
-		errx(1, "erase failed");
-
-	errx(0, "erase done, reboot now");
-}
-
-static void
-ramtron_ioctl(unsigned operation)
-{
-	int fd;
-
-	fd = open("/ramtron/.", 0);
-
-	if (fd < 0)
-		err(1, "open /ramtron");
-
-	if (ioctl(fd, operation, 0) < 0)
-		err(1, "ioctl");
-
-	exit(0);
-}
-
-static void
-ramtron_save(const char *name)
-{
-	if (!started)
-		errx(1, "must be started first");
-
-	if (!name)
-		err(1, "missing argument for device name, try '/ramtron/parameters'");
-
-	warnx("WARNING: 'ramtron save_param' deprecated - use 'param save' instead");
-
-	/* delete the file in case it exists */
-	unlink(name);
-
-	/* create the file */
-	int fd = open(name, O_WRONLY | O_CREAT | O_EXCL);
-
-	if (fd < 0)
-		err(1, "opening '%s' failed", name);
-
-	int result = param_export(fd, false);
-	close(fd);
-
-	if (result < 0) {
-		unlink(name);
-		errx(1, "error exporting to '%s'", name);
-	}
-
-	exit(0);
-}
-
-static void
-ramtron_load(const char *name)
-{
-	if (!started)
-		errx(1, "must be started first");
-
-	if (!name)
-		err(1, "missing argument for device name, try '/ramtron/parameters'");
-
-	warnx("WARNING: 'ramtron load_param' deprecated - use 'param load' instead");
-
-	int fd = open(name, O_RDONLY);
-
-	if (fd < 0)
-		err(1, "open '%s'", name);
-
-	int result = param_load(fd);
-	close(fd);
-
-	if (result < 0)
-		errx(1, "error importing from '%s'", name);
-
-	exit(0);
-}
-
-//extern void at24c_test(void);
-
-static void
-ramtron_test(void)
-{
-//	at24c_test();
-	exit(0);
-}
-
-#endif