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/* By Thomas.Lange@Corelatus.com 001025 */
/* Definitions for EEPROM/VOLT METER DS2438 */
/* Copyright (C) 2000-2005 Corelatus AB */
/* 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 program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef INCeedevh
#define INCeedevh
#define E_DEBUG(fmt,args...) if( Debug ) printk(KERN_DEBUG"EE: " fmt, ##args)
/* MIPS */
#define WRITE_PORT(Value) write_gpio_data(Value)
#define READ_PORT (gpio_read()&GPIO_EEDQ)
/* 64 bytes chip */
#define EE_CHIP_SIZE 64
/* Board with new current resistor */
#define EE_GTH_0304 1
/* new dsp and 64 MB SDRAM */
#define EE_DSP_64 0x10
/* microsecs */
/* Pull line down at least this long for reset pulse */
#define RESET_LOW_TIME 490
/* Read presence pulse after we release reset pulse */
#define PRESENCE_TIMEOUT 100
#define PRESENCE_LOW_TIME 200
#define WRITE_0_LOW 60
#define WRITE_1_LOW 1
#define TOTAL_WRITE_LOW 60
#define READ_LOW 1
#define READ_TIMEOUT 10
#define TOTAL_READ_LOW 70
/* Rom function commands */
#define READ_ROM 0x33
#define MATCH_ROM 0x55
#define SKIP_ROM 0xCC
#define SEARCH_ROM 0xF0
/* Memory_command_function */
#define WRITE_SCRATCHPAD 0x4E
#define READ_SCRATCHPAD 0xBE
#define COPY_SCRATCHPAD 0x48
#define RECALL_MEMORY 0xB8
#define CONVERT_TEMP 0x44
#define CONVERT_VOLTAGE 0xB4
/* Chip is divided in 8 pages, 8 bytes each */
#define EE_PAGE_SIZE 8
/* All chip data we want are in page 0 */
/* Bytes in page 0 */
#define EE_P0_STATUS 0
#define EE_P0_TEMP_LSB 1
#define EE_P0_TEMP_MSB 2
#define EE_P0_VOLT_LSB 3
#define EE_P0_VOLT_MSB 4
#define EE_P0_CURRENT_LSB 5
#define EE_P0_CURRENT_MSB 6
/* 40 byte user data is located at page 3-7 */
#define EE_USER_PAGE_0 3
#define USER_PAGES 5
/* Layout of gth user pages usage */
/* Bytes 0-16 ethernet addr in ascii ( len 17 ) */
#define EE_ETHERNET_OFFSET 0
#endif /* INCeedevh */
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