Esempio n. 1
0
static int ui_cmd_showtime(ui_cmdline_t *cmd,int argc,char *argv[])
{
    uint8_t hr,min,sec;
    uint8_t mo,day,yr,y2k;
    int res=0;
    int fd;
    uint8_t buf[12];

    fd = cfe_open("clock0");
    if (fd < 0) {
        ui_showerror(fd,"could not open clock device");
        return fd;
    }
    res = cfe_read(fd,buf,8);
    if (res < 0) {
        ui_showerror(res,"could not get time/date");
    }
    cfe_close(fd);

    hr = buf[0];
    min = buf[1];
    sec = buf[2];
    mo = buf[3];
    day = buf[4];
    yr = buf[5];
    y2k = buf[6];

    printf("Current date & time is: ");
    printf("%02X/%02X/%02X%02X  %02X:%02X:%02X\n",mo,day,y2k,yr,hr,min,sec);

    return 0;
}
Esempio n. 2
0
static int ui_cmd_readnvram(ui_cmdline_t *cmd,int argc,char *argv[])
{
    char *dev;
    char *tok;
    int fd;
    int offset = 0;
    int res;
    uint8_t buf[512];
    int idx;

    dev = cmd_getarg(cmd,0);
    if (!dev) return ui_showusage(cmd);

    tok = cmd_getarg(cmd,1);
    if (tok) offset = xtoi(tok);
    else offset = 0;

    fd = cfe_open(dev);
    if (fd < 0) {
	ui_showerror(fd,"could not open NVRAM");
	return fd;
	}

    res = cfe_readblk(fd,offset,buf,512);
    printf("Offset %d Result %d\n",offset,res);
    for (idx = 0; idx < 512; idx++) {
	if ((idx % 16) == 0) printf("\n");
	printf("%02X ",buf[idx]);
	}
    printf("\n");	

    cfe_close(fd);
    return 0;
	
}
Esempio n. 3
0
static void
bhnd_nvram_iocfe_free(struct bhnd_nvram_io *io)
{
	struct bcm_nvram_iocfe	*iocfe = (struct bcm_nvram_iocfe *)io;

	/* CFE I/O instances are statically allocated; we do not need to free
	 * the instance itself */
	cfe_close(iocfe->fd);
}
Esempio n. 4
0
int
BCMINITFN(nvram_commit_internal)(bool nvram_corrupt)
{
	struct nvram_header *header;
	int ret;
	uint32 *src, *dst;
	uint i;

	if (!(header = (struct nvram_header *) MALLOC(NULL, MAX_NVRAM_SPACE))) {
		printf("nvram_commit: out of memory\n");
		return -12; /* -ENOMEM */
	}

	NVRAM_LOCK();

	/* Regenerate NVRAM */
	ret = _nvram_commit(header);
	if (ret)
		goto done;

	src = (uint32 *) &header[1];
	dst = src;

	for (i = sizeof(struct nvram_header); i < header->len && i < MAX_NVRAM_SPACE; i += 4)
		*dst++ = htol32(*src++);

#ifdef _CFE_
	if ((ret = cfe_open(flashdrv_nvram)) >= 0) {
		if (nvram_corrupt) {
			printf("Corrupting NVRAM...\n");
			header->magic = NVRAM_INVALID_MAGIC;
		}
		cfe_writeblk(ret, 0, (unsigned char *) header, header->len);
		cfe_close(ret);
	}
#else
	if (sysFlashInit(NULL) == 0) {
		/* set/write invalid MAGIC # (in case writing image fails/is interrupted)
		 * write the NVRAM image to flash(with invalid magic)
		 * set/write valid MAGIC #
		 */
		header->magic = NVRAM_CLEAR_MAGIC;
		nvWriteChars((unsigned char *)&header->magic, sizeof(header->magic));

		header->magic = NVRAM_INVALID_MAGIC;
		nvWrite((unsigned short *) header, MAX_NVRAM_SPACE);

		header->magic = NVRAM_MAGIC;
		nvWriteChars((unsigned char *)&header->magic, sizeof(header->magic));
	}
#endif /* ifdef _CFE_ */

done:
	NVRAM_UNLOCK();
	MFREE(NULL, header, MAX_NVRAM_SPACE);
	return ret;
}
Esempio n. 5
0
static int ui_cmd_settime(ui_cmdline_t *cmd,int argc,char *argv[])
{
    char *line;
    char *p;
    int hr,min,sec;
    int fd;
    uint8_t buf[12];
    int res=0;

    if ((line = cmd_getarg(cmd,0)) == NULL) {
        return ui_showusage(cmd);
    }

    /* convert colons to spaces for the gettoken routine */
    while ((p = strchr(line,':'))) *p = ' ';

    /* parse and check command-line args */
    hr = -1;
    min = -1;
    sec = -1;

    p = gettoken(&line);
    if (p) hr = atoi(p);
    p = gettoken(&line);
    if (p) min = atoi(p);
    p = gettoken(&line);
    if (p) sec = atoi(p);

    if ((hr < 0) || (hr > 23) ||
            (min < 0) || (min >= 60) ||
            (sec < 0) || (sec >= 60)) {
        return ui_showusage(cmd);
    }

    /*
     * hour-minute-second-month-day-year1-year2-(time/date flag)
     * time/date flag (offset 7) is used to let device know what
     * is being set.
     */
    buf[0] = hr;
    buf[1] = min;
    buf[2] = sec;
    buf[7] = 0x00;	/*SET_TIME = 0x00, SET_DATE = 0x01*/

    fd = cfe_open("clock0");
    if (fd < 0) {
        ui_showerror(fd,"could not open clock device");
        return fd;
    }

    res = cfe_write(fd,buf,8);
    if (res < 0) {
        ui_showerror(res,"could not set time");
    }
    cfe_close(fd);
    return 0;
}
Esempio n. 6
0
int console_close(void)
{
    if (console_handle != -1) {
	cfe_close(console_handle);
	}

    console_handle = -1;

    return 0;
}
Esempio n. 7
0
static void raw_fileop_uninit(void *fsctx_arg)
{
    raw_fsctx_t *fsctx = (raw_fsctx_t *) fsctx_arg;

    if (fsctx->raw_refcnt) {
	xprintf("raw_fileop_uninit: warning: refcnt not zero\n");
	}

    if (fsctx->raw_isconsole == FALSE) {
	cfe_close(fsctx->raw_dev);
	}

    KFREE(fsctx);
}
Esempio n. 8
0
static int ui_cmd_erasenvram(ui_cmdline_t *cmd,int argc,char *argv[])
{
    char *dev;
    int fd;
    uint8_t buffer[2048];
    int res;
    char *tok;
    int offset;
    int length;
    uint8_t data;

    dev = cmd_getarg(cmd,0);
    if (!dev) return ui_showusage(cmd);

    offset = 0;
    if ((tok = cmd_getarg(cmd,1))) offset = xtoi(tok);
    length = 512; 

    if ((tok = cmd_getarg(cmd,2))) length = xtoi(tok);
    if (length > 2048) length = 2048;

    data = 0xFF;
    if ((tok = cmd_getarg(cmd,3))) data = xtoi(tok);

    fd = cfe_open(dev);
    if (fd < 0) {
	ui_showerror(fd,"could not open NVRAM");
	return fd;
	}

    if (cmd_sw_isset(cmd,"-pattern")) {
	memset(buffer,0,sizeof(buffer));
	for (res = 0; res < 2048; res++) {
	    buffer[res] = res & 0xFF;
	    }
	}
    else memset(buffer,data,sizeof(buffer));

    printf("Fill offset %04X length %04X\n",offset,length);

    res = cfe_writeblk(fd,offset,buffer,length);

    printf("write returned %d\n",res);

    cfe_close(fd);
    return 0;
	
}
Esempio n. 9
0
static fl_size_t
get_flash_size(char *device_name)
{
	int fd;
	flash_info_t flashinfo;
	int res = -1;

	fd = cfe_open(device_name);
	if ((fd > 0) &&
	    (cfe_ioctl(fd, IOCTL_FLASH_GETINFO,
		(unsigned char *) &flashinfo,
		sizeof(flash_info_t), &res, 0) == 0)) {

		cfe_close(fd);
		return flashinfo.flash_size;
	}

	return -1;
}
Esempio n. 10
0
int
nvram_commit(void)
{
	struct nvram_header *header;
	int ret;
	uint32 *src, *dst;
	uint i;

	if (!(header = (struct nvram_header *) MALLOC(NVRAM_SPACE))) {
		printf("nvram_commit: out of memory\n");
		return -12; /* -ENOMEM */
	}

	NVRAM_LOCK();

	/* Regenerate NVRAM */
	ret = _nvram_commit(header);
	if (ret)
		goto done;
	
	src = (uint32 *) &header[1];
	dst = src;

	for (i = sizeof(struct nvram_header); i < header->len && i < NVRAM_SPACE; i += 4)
		*dst++ = htol32(*src++);
#ifdef ASUS
#else
#ifdef _CFE_
	if ((ret = cfe_open("flash0.nvram")) >= 0) {
		cfe_writeblk(ret, 0, (unsigned char *) header, NVRAM_SPACE);
		cfe_close(ret);
	}
#else
	if (flash_init((void *) FLASH_BASE, NULL) == 0)
		nvWrite((unsigned short *) header, NVRAM_SPACE);
#endif
#endif

 done:
	NVRAM_UNLOCK();
	MFREE(header, NVRAM_SPACE);
	return ret;
}
Esempio n. 11
0
static struct nvram_header *
BCMINITFN(find_devinfo_nvram)(si_t *sih)
{
	int cfe_fd, ret;

	if (devinfo_nvram_header != NULL) {
		return (devinfo_nvram_header);
	}

	if ((cfe_fd = cfe_open(devinfo_flashdrv_nvram)) < 0) {
		return NULL;
	}

	ret = cfe_read(cfe_fd, (unsigned char *)devinfo_nvram_nvh,  NVRAM_SPACE);
	if (ret >= 0) {
		devinfo_nvram_header = (struct nvram_header *) devinfo_nvram_nvh;
	}

	cfe_close(cfe_fd);

	return (devinfo_nvram_header);
}
Esempio n. 12
0
/**
 * Initialize a new CFE device-backed I/O context.
 *
 * The caller is responsible for releasing all resources held by the returned
 * I/O context via bhnd_nvram_io_free().
 * 
 * @param[out]	io	On success, will be initialized as an I/O context for
 *			CFE device @p dname.
 * @param	dname	The name of the CFE device to be opened for reading.
 *
 * @retval 0		success.
 * @retval non-zero	if opening @p dname otherwise fails, a standard unix
 *			error will be returned.
 */
static int
bcm_nvram_iocfe_init(struct bcm_nvram_iocfe *iocfe, char *dname)
{
	nvram_info_t		 nvram_info;
	int			 cerr, devinfo, dtype, rlen;
	int64_t			 nv_offset;
	u_int			 nv_size;
	bool			 req_blk_erase;
	int			 error;

	iocfe->io.iops = &bhnd_nvram_iocfe_ops;
	iocfe->dname = dname;

	/* Try to open the device */
	iocfe->fd = cfe_open(dname);
	if (iocfe->fd <= 0) {
		IOCFE_LOG(iocfe, "cfe_open() failed: %d\n", iocfe->fd);

		return (ENXIO);
	}

	/* Try to fetch device info */
	if ((devinfo = cfe_getdevinfo(iocfe->dname)) < 0) {
		IOCFE_LOG(iocfe, "cfe_getdevinfo() failed: %d\n", devinfo);
		error = ENXIO;
		goto failed;
	}

	/* Verify device type */
	dtype = devinfo & CFE_DEV_MASK;
	switch (dtype) {
	case CFE_DEV_FLASH:
	case CFE_DEV_NVRAM:
		/* Valid device type */
		break;
	default:
		IOCFE_LOG(iocfe, "unknown device type: %d\n", dtype);
		error = ENXIO;
		goto failed;
	}

	/* Try to fetch nvram info from CFE */
	cerr = cfe_ioctl(iocfe->fd, IOCTL_NVRAM_GETINFO,
	    (unsigned char *)&nvram_info, sizeof(nvram_info), &rlen, 0);
	if (cerr == CFE_OK) {
		/* Sanity check the result; must not be a negative integer */
		if (nvram_info.nvram_size < 0 ||
		    nvram_info.nvram_offset < 0)
		{
			IOCFE_LOG(iocfe, "invalid NVRAM layout (%d/%d)\n",
			    nvram_info.nvram_size, nvram_info.nvram_offset);
			error = ENXIO;
			goto failed;
		}

		nv_offset	= nvram_info.nvram_offset;
		nv_size		= nvram_info.nvram_size;
		req_blk_erase	= (nvram_info.nvram_eraseflg != 0);
	} else if (cerr != CFE_OK && cerr != CFE_ERR_INV_COMMAND) {
		IOCFE_LOG(iocfe, "IOCTL_NVRAM_GETINFO failed: %d\n", cerr);
		error = ENXIO;
		goto failed;
	}

	/* Fall back on flash info.
	 * 
	 * This is known to be required on the Asus RT-N53 (CFE 5.70.55.33, 
	 * BBP 1.0.37, BCM5358UB0), where IOCTL_NVRAM_GETINFO returns
	 * CFE_ERR_INV_COMMAND.
	 */
	if (cerr == CFE_ERR_INV_COMMAND) {
		flash_info_t fi;

		cerr = cfe_ioctl(iocfe->fd, IOCTL_FLASH_GETINFO,
		    (unsigned char *)&fi, sizeof(fi), &rlen, 0);

		if (cerr != CFE_OK) {
			IOCFE_LOG(iocfe, "IOCTL_FLASH_GETINFO failed %d\n",
			    cerr);
			error = ENXIO;
			goto failed;
		}

		nv_offset	= 0x0;
		nv_size		= fi.flash_size;
		req_blk_erase	= !(fi.flash_flags & FLASH_FLAG_NOERASE);
	}

	
	/* Verify that the full NVRAM layout can be represented via size_t */
	if (nv_size > SIZE_MAX || SIZE_MAX - nv_size < nv_offset) {
		IOCFE_LOG(iocfe, "invalid NVRAM layout (%#x/%#jx)\n",
		    nv_size, (intmax_t)nv_offset);
		error = ENXIO;
		goto failed;
	}

	iocfe->offset = nv_offset;
	iocfe->size = nv_size;
	iocfe->req_blk_erase = req_blk_erase;

	return (CFE_OK);

failed:
	if (iocfe->fd >= 0)
		cfe_close(iocfe->fd);

	return (error);
}
Esempio n. 13
0
static int ui_cmd_flashtest(ui_cmdline_t *cmd,int argc,char *argv[])
{
    flash_info_t info;
    int fd;
    int retlen;
    int res = 0;
    int idx;
    flash_sector_t sector;
    nvram_info_t nvraminfo;
    char *devname;
    int showsectors;

    devname = cmd_getarg(cmd,0);
    if (!devname) return ui_showusage(cmd);

    showsectors = cmd_sw_isset(cmd,"-sectors");

    fd = cfe_open(devname);
    if (fd < 0) {
	ui_showerror(fd,"Could not open flash device %s",devname);
	return fd;
	}

    res = cfe_ioctl(fd,IOCTL_FLASH_GETINFO,(uint8_t *) &info,sizeof(flash_info_t),&retlen,0);
    if (res == 0) {
	printf("FLASH: Base %016llX size %08X type %02X(%s) flags %08X\n",
	   info.flash_base,info.flash_size,info.flash_type,flashtypes[info.flash_type],
	       info.flash_flags);
	}
    else {
	printf("FLASH: Could not determine flash information\n");
	}

    res = cfe_ioctl(fd,IOCTL_NVRAM_GETINFO,(uint8_t *) &nvraminfo,sizeof(nvram_info_t),&retlen,0);
    if (res == 0) {
	printf("NVRAM: Offset %08X Size %08X EraseFlg %d\n",
	       nvraminfo.nvram_offset,nvraminfo.nvram_size,nvraminfo.nvram_eraseflg);
	}
    else {
	printf("NVRAM: Not supported by this flash\n");
	}

    if (showsectors && (info.flash_type == FLASH_TYPE_FLASH)) {
	printf("Flash sector information:\n");

	idx = 0;
	for (;;) {
	    sector.flash_sector_idx = idx;
	    res = cfe_ioctl(fd,IOCTL_FLASH_GETSECTORS,(uint8_t *) &sector,sizeof(flash_sector_t),&retlen,0);
	    if (res != 0) {
		printf("ioctl error\n");
		break;
		}
	    if (sector.flash_sector_status == FLASH_SECTOR_INVALID) break;
	    printf("  Sector %d offset %08X size %d\n",
		   sector.flash_sector_idx,
		   sector.flash_sector_offset,
		   sector.flash_sector_size);     
	    idx++;
	    }
	}

    cfe_close(fd);
    return 0;

}
Esempio n. 14
0
static int ui_cmd_config1250(ui_cmdline_t *cmd,int argc,char *argv[])
{
    char *tok;
    int fh;
    uint8_t *base;
    int len;
    int res;

    tok = cmd_getarg(cmd, 0);
    if (!tok) {
	return ui_showusage(cmd);
	}

    if (argc > 1) {
	char *fname;
	cfe_loadargs_t *la = &cfe_loadargs;
	int res;
    
	fname = cmd_getarg(cmd, 1);
	if (!fname) {
	    return ui_showusage(cmd);
	    }

	/* Get the file using tftp and read it into a known location. */

	/* (From ui_flash.c):
         * We can't allocate the space from the heap to store the 
	 * file to download, because the heap may not be big enough.
	 * So, grab some unallocated memory at the 1MB line (we could
	 * also calculate something, but this will do for now).
	 * We assume the downloadable file will be no bigger than 4MB.
	 */

	/* Fill out the loadargs */

	la->la_flags = LOADFLG_NOISY;

	la->la_device = (char *) net_getparam(NET_DEVNAME);
	la->la_filesys = "tftp";
	la->la_filename = fname;

	/* Temporary: use a fixed memory buffer. */
	la->la_address = KERNADDR(FILE_STAGING_BUFFER);
	la->la_maxsize = FILE_STAGING_BUFFER_SIZE;;
	la->la_flags |= LOADFLG_SPECADDR;

	la->la_options = NULL;

	xprintf("Loader:raw Filesys:%s Dev:%s File:%s Options:%s\n",
		la->la_filesys, la->la_device, la->la_filename, la->la_options);

	res = cfe_load_program("raw", la);
	if (res < 0) {
	    xprintf("Could not load %s\n", fname);
	    return res;
	    }

	base = (uint8_t *)(la->la_address);
	len = res;
	}
    else {
	/* This code casts a function pointer to a byte pointer, which is
	   suspect in ANSI C but appears to work with the gnu MIPS tool
	   chain.  Changing the externs to, e.g., uint8_t * does not work
	   with PIC code (generates relocation errors). */

	base = (uint8_t *)download_start;
	len  = (uint8_t *)download_end - (uint8_t *)download_start;
	}
    xprintf("PCI download: base %p len %d\n", base, len);

    fh = cfe_open(tok);
    if (fh < 0) {
	xprintf("Could not open device: %s\n", cfe_errortext(fh));
	return fh;
	}

    res = cfe_write(fh, base, len);
    if (res != 0) {
	xprintf("Could not download device: %s\n", cfe_errortext(res));
	}

    cfe_close(fh);

    return res;
}
Esempio n. 15
0
static int ui_cmd_setdate(ui_cmdline_t *cmd,int argc,char *argv[])
{
    char *line;
    char *p;
    int dt,mo,yr,y2k;
    int fd;
    uint8_t buf[12];
    int res=0;

    if ((line = cmd_getarg(cmd,0)) == NULL) {
        return ui_showusage(cmd);
    }

    /* convert colons to spaces for the gettoken routine */

    while ((p = strchr(line,'/'))) *p = ' ';

    /* parse and check command-line args */

    dt = -1;
    mo = -1;
    yr = -1;

    p = gettoken(&line);
    if (p) mo = atoi(p);
    p = gettoken(&line);
    if (p) dt = atoi(p);
    p = gettoken(&line);
    if (p) yr = atoi(p);

    if ((mo <= 0) || (mo > 12) ||
            (dt <= 0) || (dt > 31) ||
            (yr < 1900) || (yr > 2099)) {
        return ui_showusage(cmd);
    }

    y2k = (yr >= 2000) ? 0x20 : 0x19;
    yr %= 100;

    /*
     * hour-minute-second-month-day-year1-year2-(time/date flag)
     * time/date flag (offset 7) is used to let device know what
     * is being set.
     */
    buf[3] = mo;
    buf[4] = dt;
    buf[5] = yr;
    buf[6] = y2k;
    buf[7] = 0x01; 	/*SET_TIME = 0x00, SET_DATE = 0x01*/

    fd = cfe_open("clock0");
    if (fd < 0) {
        ui_showerror(fd,"could not open clock device");
        return fd;
    }

    res = cfe_write(fd,buf,8);
    if (res < 0) {
        ui_showerror(res,"could not set date");
    }

    cfe_close(fd);
    return 0;
}
Esempio n. 16
0
/*  *********************************************************************
    *  ui_cmd_flashop(cmd,argc,argv)
    *  
    *  The 'flashop' command lives here.  This command does a variety
    *  of flash operations over a range of bytes:
    *
    *  erase, protect, unprotect
    *  
    *  Input parameters: 
    *  	   cmd - command table entry
    *  	   argc,argv - parameters
    *  	   
    *  Return value:
    *  	   0 if ok
    *  	   else error
    ********************************************************************* */
static int ui_cmd_flashop(ui_cmdline_t *cmd,int argc,char *argv[])
{
    int fd;
    int res;
    char *flashdev;
    int devtype;
    flash_info_t flashinfo;
    int erase;
    int protect;
    int unprotect;
    int retlen;
    unsigned int startaddr = 0;
    unsigned int endaddr = 0;
    char *x;
    int all;
    flash_range_t range;

    flashdev = cmd_getarg(cmd,0);

    if (!flashdev) flashdev = "flash0";

    /*
     * Make sure it's a flash device.
     */

    res = cfe_getdevinfo(flashdev);
    if (res < 0) {
        return ui_showerror(CFE_ERR_DEVNOTFOUND,flashdev);
        }

    devtype = res & CFE_DEV_MASK;

    if (res != CFE_DEV_FLASH) {
        xprintf("Device '%s' is not a flash device.\n",flashdev);
        return CFE_ERR_INV_PARAM;
    }

    protect = cmd_sw_isset(cmd,"-protect");
    unprotect = cmd_sw_isset(cmd,"-unprotect");
    erase = cmd_sw_isset(cmd,"-erase");

    if (protect == 1) {
        if (erase || unprotect)
            {
            xprintf("Conflicting options\n");
            return CFE_ERR_INV_PARAM;
            }
    }

    if (unprotect == 1) {
        if (erase || protect)
            {
            xprintf("Conflicting options\n");
            return CFE_ERR_INV_PARAM;
            }
    }

    if (erase == 1) {
        if (unprotect || protect)
            {
            xprintf("Conflicting options\n");
            return CFE_ERR_INV_PARAM;
            }
    }

    if (erase == 0 && protect == 0 && unprotect == 0) {
        xprintf("Need one of following options: -erase -protect -unprotect\n");
        return CFE_ERR_INV_PARAM;
    }


    fd = cfe_open(flashdev);
    if (fd < 0) {
	xprintf("Could not open device '%s'\n",flashdev);
	return CFE_ERR_DEVNOTFOUND;
	}

    res = cfe_ioctl(fd,IOCTL_FLASH_GETINFO,(uint8_t *) &flashinfo,sizeof(flash_info_t),&retlen,0);
    if (res != 0) {
        cfe_close (fd);
        return CFE_ERR_IOERR;
    }

    all = cmd_sw_isset(cmd,"-all");
    if (all == 0) {
        if (cmd_sw_value(cmd,"-startaddr",&x)) {
            startaddr = XTOI(x);
            }
        else {
            xprintf("Need option: -startaddr\n");
            cfe_close (fd);
            return CFE_ERR_INV_PARAM;
            }

        if (cmd_sw_value(cmd,"-endaddr",&x)) {
            endaddr = XTOI(x);
            }
        else {
            xprintf("Need option: -endaddr\n");
            cfe_close (fd);
            return CFE_ERR_INV_PARAM;
            }

        if (startaddr > endaddr) {
            xprintf("Final offset (endaddr) must not be less than startaddr \n");
            cfe_close (fd);
            return CFE_ERR_INV_PARAM;
            }
       
        /* Make sure endaddr is within flash */

        if (endaddr >= flashinfo.flash_size) {
            xprintf("Final offset (endaddr) must less than 0x%x\n", flashinfo.flash_size);
            cfe_close (fd);
            return CFE_ERR_INV_PARAM;
        }

        /* We got here, so params are OK  */
        range.range_base = startaddr;
        range.range_length = endaddr-startaddr;
    }
    else {
        range.range_base = 0;
        range.range_length = flashinfo.flash_size;
    }

    if (erase)
        {
        res = cfe_ioctl(fd, IOCTL_FLASH_ERASE_RANGE,
            (void *) &range, NULL, NULL, NULL);
        }

    else if (protect)
        {
        res = cfe_ioctl(fd, IOCTL_FLASH_PROTECT_RANGE,
            (void *) &range, NULL, NULL, NULL);
        }

    else if (unprotect)
        {
        res = cfe_ioctl(fd, IOCTL_FLASH_UNPROTECT_RANGE,
            (void *) &range, NULL, NULL, NULL);
        }

    if (res != 0) {
        printf("ioctl error\n");
        }

    cfe_close (fd);
    return 0;
}