rtc8025.h

i2c接口的实时时钟芯片rx8025的linux驱动程序

/*
 *  linux/drivers/i2c/chips/rtc8025.h
 *
 *  Copyright (C) 2007 arming
 *
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * Driver for system3's EPSON RTC 8025 chip
 */

#include <linux/miscdevice.h>

/* rtc8025 misc dev */
/*#define RTC8025_MINOR	MISC_DYNAMIC_MINOR*/
 #define RTC8025_NAME	"rtc8025"
 
/* registers */                       
#define RX8025_REG_SEC		0x00        
#define RX8025_REG_MIN		0x01        
#define RX8025_REG_HOUR		0x02        
#define RX8025_REG_WDAY		0x03        
#define RX8025_REG_MDAY		0x04        
#define RX8025_REG_MONTH	0x05        
#define RX8025_REG_YEAR		0x06        
#define RX8025_REG_DIGOFF	0x07        
#define RX8025_REG_ALWMIN	0x08        
#define RX8025_REG_ALWHOUR	0x09      
#define RX8025_REG_ALWWDAY	0x0a      
#define RX8025_REG_ALDMIN	0x0b        
#define RX8025_REG_ALDHOUR	0x0c      
/* 0x0e is reserved */                
#define RX8025_REG_CTRL1	0x0e        
#define RX8025_REG_CTRL2	0x0f        
                                      
#define RX8025_BIT_CTRL1_1224	(1 << 5)
#define RX8025_BIT_CTRL1_DALE	(1 << 6)
#define RX8025_BIT_CTRL1_WALE	(1 << 7)
                                      
#define RX8025_BIT_CTRL2_PON	(1 << 4)
#define RX8025_BIT_CTRL2_VDET	(1 << 6)

#define I2C_DRIVERID_RTC8025 0xf000