projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * arch/mips/pmc-sierra/yosemite/atmel_read_eeprom.c | |
| 3 | * | |
| 4 | * Copyright (C) 2003 PMC-Sierra Inc. | |
| 5 | * Author: Manish Lachwani (lachwani@pmc-sierra.com) | |
| 6 | * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org) | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or modify it | |
| 9 | * under the terms of the GNU General Public License as published by the | |
| 10 | * Free Software Foundation; either version 2 of the License, or (at your | |
| 11 | * option) any later version. | |
| 12 | * | |
| 13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
| 14 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| 15 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN | |
| 16 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
| 17 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 18 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF | |
| 19 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON | |
| 20 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 21 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
| 22 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 23 | * | |
| 24 | * You should have received a copy of the GNU General Public License along | |
| 25 | * with this program; if not, write to the Free Software Foundation, Inc., | |
| 26 | * 675 Mass Ave, Cambridge, MA 02139, USA. | |
| 27 | */ | |
| 28 | ||
| 29 | /* | |
| 30 | * Header file for atmel_read_eeprom.c | |
| 31 | */ | |
| 32 | ||
| 33 | #include <linux/types.h> | |
| 34 | #include <linux/pci.h> | |
| 35 | #include <linux/kernel.h> | |
| 36 | #include <linux/slab.h> | |
| 37 | #include <linux/version.h> | |
| 38 | #include <asm/pci.h> | |
| 39 | #include <asm/io.h> | |
| 40 | #include <linux/init.h> | |
| 41 | #include <asm/termios.h> | |
| 42 | #include <asm/ioctls.h> | |
| 43 | #include <linux/ioctl.h> | |
| 44 | #include <linux/fcntl.h> | |
| 45 | ||
| 46 | #define DEFAULT_PORT "/dev/ttyS0" /* Port to open */ | |
| 47 | #define TXX 0 /* Dummy loop for spinning */ | |
| 48 | ||
| 49 | #define BLOCK_SEL 0x00 | |
| 50 | #define SLAVE_ADDR 0xa0 | |
| 51 | #define READ_BIT 0x01 | |
| 52 | #define WRITE_BIT 0x00 | |
| 53 | #define R_HEADER SLAVE_ADDR + BLOCK_SEL + READ_BIT | |
| 54 | #define W_HEADER SLAVE_ADDR + BLOCK_SEL + WRITE_BIT | |
| 55 | ||
| 56 | /* | |
| 57 | * Clock, Voltages and Data | |
| 58 | */ | |
| 59 | #define vcc_off (ioctl(fd, TIOCSBRK, 0)) | |
| 60 | #define vcc_on (ioctl(fd, TIOCCBRK, 0)) | |
| 61 | #define sda_hi (ioctl(fd, TIOCMBIS, &dtr)) | |
| 62 | #define sda_lo (ioctl(fd, TIOCMBIC, &dtr)) | |
| 63 | #define scl_lo (ioctl(fd, TIOCMBIC, &rts)) | |
| 64 | #define scl_hi (ioctl(fd, TIOCMBIS, &rts)) | |
| 65 | ||
| 66 | const char rts = TIOCM_RTS; | |
| 67 | const char dtr = TIOCM_DTR; | |
| 68 | int fd; | |
| 69 |