i2c-aa.h

Dragonball I2C驱动

/******************************************************************************  
	Copyright (C) 2002 Motorola GSG-China

	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.
*******************************************************************************/
/************************************************************************
 *   File Name : i2c-aa.h
 *   Description :
 *   	i2c Adapter/Algorithm Driver Globel Define	
 *   Auther
 *   Data
 *   ID
 ************************************************************************/
#ifndef _I2C_AA_H
#define _I2C_AA_H

#include <linux/module.h>
#include <asm/arch/hardware.h>
#include <linux/i2c.h>


#ifdef _DEBUG_CSI
#	define CSI_DB(fmt, args...) 	printk("\n[%s]:[line%d]----"fmt, __FILE__, __LINE__, ## args)
#	define CSI_LOC			printk(KERN_ERR"\nCurrent Location [%s]:[%d]\n", __FILE__, __LINE__)
#	define FUNC_START		printk(KERN_ERR"\n[%s]:start!\n", __FUNCTION__)
#	define FUNC_END			printk(KERN_ERR"\n[%s]:end!\n", __FUNCTION__)
#	define CLUE(arg)		printk(" %s\n",arg)

#else
#	define CSI_DB(fmt, args...)
#	define CSI_LOC
#	define FUNC_START
#	define FUNC_END
#endif
/************************************************************************
 *
 * Typedef
 * 
 ************************************************************************/
#ifndef BOOLEAN
typedef signed char BOOLEAN;
typedef unsigned char UINT8;
typedef signed char SINT8;
typedef unsigned short UINT16;
typedef signed short SINT16;
typedef unsigned long UINT32;
typedef signed long SINT32;

typedef volatile BOOLEAN VBOOLEAN;
typedef volatile UINT8 VUINT8;
typedef volatile SINT8 VSINT8;
typedef volatile UINT16 VUINT16;
typedef volatile SINT16 VSINT16;
typedef volatile UINT32 VUINT32;
typedef volatile SINT32 VSINT32;
#endif /* BOOLEAN */



/************************************************************************
 *
 * 		GPIO
 * 
 ************************************************************************/
#define PTA_BASE_ADDR           0x0021C000              
#define PTA_DDIR                PTA_BASE_ADDR                
#define PTA_OCR1                (PTA_BASE_ADDR+0x04)                
#define PTA_OCR2                (PTA_BASE_ADDR+0x08)                
#define PTA_ICONFA1             (PTA_BASE_ADDR+0x0C)                
#define PTA_ICONFA2             (PTA_BASE_ADDR+0x10)                
#define PTA_ICONFB1             (PTA_BASE_ADDR+0x14)                
#define PTA_ICONFB2             (PTA_BASE_ADDR+0x18)                
#define PTA_DR                  (PTA_BASE_ADDR+0x1C)                
#define PTA_GIUS                (PTA_BASE_ADDR+0x20)                
#define PTA_SSR                 (PTA_BASE_ADDR+0x24)                
#define PTA_ICR1                (PTA_BASE_ADDR+0x28)                
#define PTA_ICR2                (PTA_BASE_ADDR+0x2C)                
#define PTA_IMR                 (PTA_BASE_ADDR+0x30)                
#define PTA_ISR                 (PTA_BASE_ADDR+0x34)                
#define PTA_GPR                 (PTA_BASE_ADDR+0x38)                
#define PTA_SWR                 (PTA_BASE_ADDR+0x3C)                
#define PTA_PUEN                (PTA_BASE_ADDR+0x40) 
#define MX1_REG_PTA_DDIR                (*((volatile unsigned long *)(IO_ADDRESS(PTA_DDIR))))
#define MX1_REG_PTA_OCR1                (*((volatile unsigned long *)(IO_ADDRESS(PTA_OCR1))))
#define MX1_REG_PTA_OCR2                (*((volatile unsigned long *)(IO_ADDRESS(PTA_OCR2))))
#define MX1_REG_PTA_ICONFA1             (*((volatile unsigned long *)(IO_ADDRESS(PTA_ICONFA1))))
#define MX1_REG_PTA_ICONFA2             (*((volatile unsigned long *)(IO_ADDRESS(PTA_ICONFA2))))
#define MX1_REG_PTA_ICONFB1             (*((volatile unsigned long *)(IO_ADDRESS(PTA_ICONFB1))))
#define MX1_REG_PTA_ICONFB2             (*((volatile unsigned long *)(IO_ADDRESS(PTA_ICONFB2))))
#define MX1_REG_PTA_DR                  (*((volatile unsigned long *)(IO_ADDRESS(PTA_DR))))
#define MX1_REG_PTA_GIUS                (*((volatile unsigned long *)(IO_ADDRESS(PTA_GIUS))))
#define MX1_REG_PTA_SSR                 (*((volatile unsigned long *)(IO_ADDRESS(PTA_SSR))))
#define MX1_REG_PTA_ICR1                (*((volatile unsigned long *)(IO_ADDRESS(PTA_ICR1))))
#define MX1_REG_PTA_ICR2                (*((volatile unsigned long *)(IO_ADDRESS(PTA_ICR2))))
#define MX1_REG_PTA_IMR                 (*((volatile unsigned long *)(IO_ADDRESS(PTA_IMR))))
#define MX1_REG_PTA_ISR                 (*((volatile unsigned long *)(IO_ADDRESS(PTA_ISR))))
#define MX1_REG_PTA_GPR                 (*((volatile unsigned long *)(IO_ADDRESS(PTA_GPR))))
#define MX1_REG_PTA_SWR                 (*((volatile unsigned long *)(IO_ADDRESS(PTA_SWR))))
#define MX1_REG_PTA_PUEN                (*((volatile unsigned long *)(IO_ADDRESS(PTA_PUEN))))


/************************************************************************
 *
 * Define DBMX1 I2C AA hardware dependent information 
 * 
 ************************************************************************/
/* Bit algorithm adapter ID, maybe should define in 'linux/i2c-id.h' */
//#define I2C_HW_B_DBMX1	0x12
#define I2C_DRIVERID_I2CCSI	0x1001
#define I2C_DRIVERID_I2CSSI	0x1002
#define I2C_DRIVERID_KEYPAD     0x1003
#define I2C_AA_REG_ADDR 	(0x00217000 + 0xF0000000)
/*
 * I2C clock = system clock / 960  (exactly 100k for 96M BCLK)
 * defined in table 29-4(29.5.2) of DBMX1 user's manual
 */
#define DEFAULT_FREQ 		0x17
#define I2C_AA_IRQ 		0x27
#define I2C_AA_INTR_MODE	0	//SA_SHIRQ | SA_INTERRUPT

///* Slave address of SCM20014 */
//#define I2C_CSI_SLAVE_WADD	0x66
//#define I2C_CSI_SLAVE_RADD	0x67
//#define I2C_ADDR_CMOS_SENSOR	0x66

///* Define of Massage Flag */
//#define EMBEDDED_REGISTER	0x01
//#define I2C_M_READ		0x02
//#define I2C_M_WT		0x04
// support slave mode read/write, but in DBMX1, useless
//#define I2C_S_READ		0x08
//#define I2C_S_WRITE		0x10

/* Option Code of I2C Adapter/Algorithm I/O control */
#define I2C_IO_CHANGE_FREQ 	0xaa
#define I2C_IO_GET_STATUS 	0xab

#define IADR			0xf0217000
#define IFDR			0xf0217004
#define I2CR			0xf0217008
#define I2SR			0xf021700c
#define I2DR			0xf0217010
/************************************************************************
 *
 * Struct
 * 
 ************************************************************************/
struct I2C_AA_REG {
	VUINT32 iadr;
	VUINT32	ifdr;
	VUINT32	i2cr;
	VUINT32	i2sr;
	VUINT32	i2dr;
};

unsigned int READREG(unsigned int r)
{
	volatile unsigned int * addr;
	addr = (unsigned int *)r;
	return *(volatile unsigned int *)addr;
}
void WRITEREG(unsigned int r, unsigned int val)
{
	volatile unsigned int * addr;
	addr = (unsigned int *)r;
	*(volatile unsigned int *)addr = val;
}

/************************************************************************
 * 		Functions 
 ************************************************************************/
extern int i2c_smbus_aa_xfer(struct i2c_adapter * adapter, u16 addr, unsigned short flags, char read_write, u8 command, int size, union i2c_smbus_data * data);
extern int i2c_aa_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msgs[ ], int num);
extern int i2c_aa_iotcl(struct i2c_adapter * adapter, 
			unsigned int cmd, unsigned long arg);
#endif /* _I2C_AA_H */