Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

/*

 *  arch/mips/pmc-sierra/yosemite/atmel_read_eeprom.c

 *

 *  Copyright (C) 2003 PMC-Sierra Inc.

 *  Author: Manish Lachwani (lachwani@pmc-sierra.com)

 *  Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org)

 *

 *  This program is free software; you can redistribute  it and/or modify it

 *  under  the terms of  the GNU General  Public License as published by the

 *  Free Software Foundation;  either version 2 of the  License, or (at your

 *  option) any later version.

 *

 *  THIS  SOFTWARE  IS PROVIDED   ``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  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.

 *

 *  You should have received a copy of the  GNU General Public License along

 *  with this program; if not, write  to the Free Software Foundation, Inc.,

 *  675 Mass Ave, Cambridge, MA 02139, USA.

 */

/*

 * Header file for atmel_read_eeprom.c

 */

#include <linux/types.h>

#include <linux/pci.h>

#include <linux/kernel.h>

#include <linux/slab.h>

#include <asm/pci.h>

#include <asm/io.h>

#include <linux/init.h>

#include <asm/termios.h>

#include <asm/ioctls.h>

#include <linux/ioctl.h>

#include <linux/fcntl.h>

#define DEFAULT_PORT    "/dev/ttyS0"    /* Port to open */

#define TXX             0               /* Dummy loop for spinning */

#define BLOCK_SEL       0x00

#define SLAVE_ADDR      0xa0

#define READ_BIT        0x01

#define WRITE_BIT       0x00

#define R_HEADER        SLAVE_ADDR + BLOCK_SEL + READ_BIT

#define W_HEADER        SLAVE_ADDR + BLOCK_SEL + WRITE_BIT

/*

 * Clock, Voltages and Data

 */

#define vcc_off         (ioctl(fd, TIOCSBRK, 0))

#define vcc_on          (ioctl(fd, TIOCCBRK, 0))

#define sda_hi          (ioctl(fd, TIOCMBIS, &dtr))

#define sda_lo          (ioctl(fd, TIOCMBIC, &dtr))

#define scl_lo          (ioctl(fd, TIOCMBIC, &rts))

#define scl_hi          (ioctl(fd, TIOCMBIS, &rts))

const char rts = TIOCM_RTS;

const char dtr = TIOCM_DTR;

int fd;